Merge branch 'modular-data-extract'

Commits in this branch are prefixed with "Extraction:"
This branch refactors data extraction. All such functionality has been moved to the yt_data_extract module.
Responses from requests are given to the module and it parses them into a consistent, more useful format.
The dependency on youtube-dl has also been dropped and this functionality has been built from scratch for these reasons:
(1) I've noticed youtube-dl breaks more often than invidious (which uses watch page extraction built from scratch) in response to changes from Youtube, so I'm hoping what I wrote will also be less brittle.
(2) Such breakage is inconvenient because I have to manually merge the fixes since I had to make changes to youtube-dl to make it do things such as extracting related videos.
(3) I have no control over error handling and request pooling with youtube-dl, since it does all the requests (these would require intrusive changes I don't want to maintain).
(4) I will now be able to finally display the number of comments and whether comments are disabled without making additional requests.

10 files changed, 0 insertions, 15049 deletions

diff --git a/youtube_dl/extractor/__init__.py b/youtube_dl/extractor/__init__.py
deleted file mode 100644
index d5a4418..0000000
--- a/youtube_dl/extractor/__init__.py
+++ /dev/null
@@ -1,46 +0,0 @@
-from __future__ import unicode_literals
-
-try:
-    from .lazy_extractors import *
-    from .lazy_extractors import _ALL_CLASSES
-    _LAZY_LOADER = True
-except ImportError:
-    _LAZY_LOADER = False
-    from .extractors import *
-
-    _ALL_CLASSES = [
-        klass
-        for name, klass in globals().items()
-        if name.endswith('IE') and name != 'GenericIE'
-    ]
-    #_ALL_CLASSES.append(GenericIE)
-
-
-def gen_extractor_classes():
-    """ Return a list of supported extractors.
-    The order does matter; the first extractor matched is the one handling the URL.
-    """
-    return _ALL_CLASSES
-
-
-def gen_extractors():
-    """ Return a list of an instance of every supported extractor.
-    The order does matter; the first extractor matched is the one handling the URL.
-    """
-    return [klass() for klass in gen_extractor_classes()]
-
-
-def list_extractors(age_limit):
-    """
-    Return a list of extractors that are suitable for the given age,
-    sorted by extractor ID.
-    """
-
-    return sorted(
-        filter(lambda ie: ie.is_suitable(age_limit), gen_extractors()),
-        key=lambda ie: ie.IE_NAME.lower())
-
-
-def get_info_extractor(ie_name):
-    """Returns the info extractor class with the given ie_name"""
-    return globals()[ie_name + 'IE']
diff --git a/youtube_dl/extractor/adobepass.py b/youtube_dl/extractor/adobepass.py
deleted file mode 100644
index b83b51e..0000000
--- a/youtube_dl/extractor/adobepass.py
+++ /dev/null
@@ -1,1567 +0,0 @@
-# coding: utf-8
-from __future__ import unicode_literals
-
-import re
-import time
-import xml.etree.ElementTree as etree
-
-from .common import InfoExtractor
-from ..compat import (
-    compat_kwargs,
-    compat_urlparse,
-)
-from ..utils import (
-    unescapeHTML,
-    urlencode_postdata,
-    unified_timestamp,
-    ExtractorError,
-    NO_DEFAULT,
-)
-
-
-MSO_INFO = {
-    'DTV': {
-        'name': 'DIRECTV',
-        'username_field': 'username',
-        'password_field': 'password',
-    },
-    'ATTOTT': {
-        'name': 'DIRECTV NOW',
-        'username_field': 'email',
-        'password_field': 'loginpassword',
-    },
-    'Rogers': {
-        'name': 'Rogers',
-        'username_field': 'UserName',
-        'password_field': 'UserPassword',
-    },
-    'Comcast_SSO': {
-        'name': 'Comcast XFINITY',
-        'username_field': 'user',
-        'password_field': 'passwd',
-    },
-    'TWC': {
-        'name': 'Time Warner Cable | Spectrum',
-        'username_field': 'Ecom_User_ID',
-        'password_field': 'Ecom_Password',
-    },
-    'Brighthouse': {
-        'name': 'Bright House Networks | Spectrum',
-        'username_field': 'j_username',
-        'password_field': 'j_password',
-    },
-    'Charter_Direct': {
-        'name': 'Charter Spectrum',
-        'username_field': 'IDToken1',
-        'password_field': 'IDToken2',
-    },
-    'Verizon': {
-        'name': 'Verizon FiOS',
-        'username_field': 'IDToken1',
-        'password_field': 'IDToken2',
-    },
-    'thr030': {
-        'name': '3 Rivers Communications'
-    },
-    'com140': {
-        'name': 'Access Montana'
-    },
-    'acecommunications': {
-        'name': 'AcenTek'
-    },
-    'acm010': {
-        'name': 'Acme Communications'
-    },
-    'ada020': {
-        'name': 'Adams Cable Service'
-    },
-    'alb020': {
-        'name': 'Albany Mutual Telephone'
-    },
-    'algona': {
-        'name': 'Algona Municipal Utilities'
-    },
-    'allwest': {
-        'name': 'All West Communications'
-    },
-    'all025': {
-        'name': 'Allen\'s Communications'
-    },
-    'spl010': {
-        'name': 'Alliance Communications'
-    },
-    'all070': {
-        'name': 'ALLO Communications'
-    },
-    'alpine': {
-        'name': 'Alpine Communications'
-    },
-    'hun015': {
-        'name': 'American Broadband'
-    },
-    'nwc010': {
-        'name': 'American Broadband Missouri'
-    },
-    'com130-02': {
-        'name': 'American Community Networks'
-    },
-    'com130-01': {
-        'name': 'American Warrior Networks'
-    },
-    'tom020': {
-        'name': 'Amherst Telephone/Tomorrow Valley'
-    },
-    'tvc020': {
-        'name': 'Andycable'
-    },
-    'arkwest': {
-        'name': 'Arkwest Communications'
-    },
-    'art030': {
-        'name': 'Arthur Mutual Telephone Company'
-    },
-    'arvig': {
-        'name': 'Arvig'
-    },
-    'nttcash010': {
-        'name': 'Ashland Home Net'
-    },
-    'astound': {
-        'name': 'Astound (now Wave)'
-    },
-    'dix030': {
-        'name': 'ATC Broadband'
-    },
-    'ara010': {
-        'name': 'ATC Communications'
-    },
-    'she030-02': {
-        'name': 'Ayersville Communications'
-    },
-    'baldwin': {
-        'name': 'Baldwin Lightstream'
-    },
-    'bal040': {
-        'name': 'Ballard TV'
-    },
-    'cit025': {
-        'name': 'Bardstown Cable TV'
-    },
-    'bay030': {
-        'name': 'Bay Country Communications'
-    },
-    'tel095': {
-        'name': 'Beaver Creek Cooperative Telephone'
-    },
-    'bea020': {
-        'name': 'Beaver Valley Cable'
-    },
-    'bee010': {
-        'name': 'Bee Line Cable'
-    },
-    'wir030': {
-        'name': 'Beehive Broadband'
-    },
-    'bra020': {
-        'name': 'BELD'
-    },
-    'bel020': {
-        'name': 'Bellevue Municipal Cable'
-    },
-    'vol040-01': {
-        'name': 'Ben Lomand Connect / BLTV'
-    },
-    'bev010': {
-        'name': 'BEVCOMM'
-    },
-    'big020': {
-        'name': 'Big Sandy Broadband'
-    },
-    'ble020': {
-        'name': 'Bledsoe Telephone Cooperative'
-    },
-    'bvt010': {
-        'name': 'Blue Valley Tele-Communications'
-    },
-    'bra050': {
-        'name': 'Brandenburg Telephone Co.'
-    },
-    'bte010': {
-        'name': 'Bristol Tennessee Essential Services'
-    },
-    'annearundel': {
-        'name': 'Broadstripe'
-    },
-    'btc010': {
-        'name': 'BTC Communications'
-    },
-    'btc040': {
-        'name': 'BTC Vision - Nahunta'
-    },
-    'bul010': {
-        'name': 'Bulloch Telephone Cooperative'
-    },
-    'but010': {
-        'name': 'Butler-Bremer Communications'
-    },
-    'tel160-csp': {
-        'name': 'C Spire SNAP'
-    },
-    'csicable': {
-        'name': 'Cable Services Inc.'
-    },
-    'cableamerica': {
-        'name': 'CableAmerica'
-    },
-    'cab038': {
-        'name': 'CableSouth Media 3'
-    },
-    'weh010-camtel': {
-        'name': 'Cam-Tel Company'
-    },
-    'car030': {
-        'name': 'Cameron Communications'
-    },
-    'canbytel': {
-        'name': 'Canby Telcom'
-    },
-    'crt020': {
-        'name': 'CapRock Tv'
-    },
-    'car050': {
-        'name': 'Carnegie Cable'
-    },
-    'cas': {
-        'name': 'CAS Cable'
-    },
-    'casscomm': {
-        'name': 'CASSCOMM'
-    },
-    'mid180-02': {
-        'name': 'Catalina Broadband Solutions'
-    },
-    'cccomm': {
-        'name': 'CC Communications'
-    },
-    'nttccde010': {
-        'name': 'CDE Lightband'
-    },
-    'cfunet': {
-        'name': 'Cedar Falls Utilities'
-    },
-    'dem010-01': {
-        'name': 'Celect-Bloomer Telephone Area'
-    },
-    'dem010-02': {
-        'name': 'Celect-Bruce Telephone Area'
-    },
-    'dem010-03': {
-        'name': 'Celect-Citizens Connected Area'
-    },
-    'dem010-04': {
-        'name': 'Celect-Elmwood/Spring Valley Area'
-    },
-    'dem010-06': {
-        'name': 'Celect-Mosaic Telecom'
-    },
-    'dem010-05': {
-        'name': 'Celect-West WI Telephone Area'
-    },
-    'net010-02': {
-        'name': 'Cellcom/Nsight Telservices'
-    },
-    'cen100': {
-        'name': 'CentraCom'
-    },
-    'nttccst010': {
-        'name': 'Central Scott / CSTV'
-    },
-    'cha035': {
-        'name': 'Chaparral CableVision'
-    },
-    'cha050': {
-        'name': 'Chariton Valley Communication Corporation, Inc.'
-    },
-    'cha060': {
-        'name': 'Chatmoss Cablevision'
-    },
-    'nttcche010': {
-        'name': 'Cherokee Communications'
-    },
-    'che050': {
-        'name': 'Chesapeake Bay Communications'
-    },
-    'cimtel': {
-        'name': 'Cim-Tel Cable, LLC.'
-    },
-    'cit180': {
-        'name': 'Citizens Cablevision - Floyd, VA'
-    },
-    'cit210': {
-        'name': 'Citizens Cablevision, Inc.'
-    },
-    'cit040': {
-        'name': 'Citizens Fiber'
-    },
-    'cit250': {
-        'name': 'Citizens Mutual'
-    },
-    'war040': {
-        'name': 'Citizens Telephone Corporation'
-    },
-    'wat025': {
-        'name': 'City Of Monroe'
-    },
-    'wadsworth': {
-        'name': 'CityLink'
-    },
-    'nor100': {
-        'name': 'CL Tel'
-    },
-    'cla010': {
-        'name': 'Clarence Telephone and Cedar Communications'
-    },
-    'ser060': {
-        'name': 'Clear Choice Communications'
-    },
-    'tac020': {
-        'name': 'Click! Cable TV'
-    },
-    'war020': {
-        'name': 'CLICK1.NET'
-    },
-    'cml010': {
-        'name': 'CML Telephone Cooperative Association'
-    },
-    'cns': {
-        'name': 'CNS'
-    },
-    'com160': {
-        'name': 'Co-Mo Connect'
-    },
-    'coa020': {
-        'name': 'Coast Communications'
-    },
-    'coa030': {
-        'name': 'Coaxial Cable TV'
-    },
-    'mid055': {
-        'name': 'Cobalt TV (Mid-State Community TV)'
-    },
-    'col070': {
-        'name': 'Columbia Power & Water Systems'
-    },
-    'col080': {
-        'name': 'Columbus Telephone'
-    },
-    'nor105': {
-        'name': 'Communications 1 Cablevision, Inc.'
-    },
-    'com150': {
-        'name': 'Community Cable & Broadband'
-    },
-    'com020': {
-        'name': 'Community Communications Company'
-    },
-    'coy010': {
-        'name': 'commZoom'
-    },
-    'com025': {
-        'name': 'Complete Communication Services'
-    },
-    'cat020': {
-        'name': 'Comporium'
-    },
-    'com071': {
-        'name': 'ComSouth Telesys'
-    },
-    'consolidatedcable': {
-        'name': 'Consolidated'
-    },
-    'conwaycorp': {
-        'name': 'Conway Corporation'
-    },
-    'coo050': {
-        'name': 'Coon Valley Telecommunications Inc'
-    },
-    'coo080': {
-        'name': 'Cooperative Telephone Company'
-    },
-    'cpt010': {
-        'name': 'CP-TEL'
-    },
-    'cra010': {
-        'name': 'Craw-Kan Telephone'
-    },
-    'crestview': {
-        'name': 'Crestview Cable Communications'
-    },
-    'cross': {
-        'name': 'Cross TV'
-    },
-    'cro030': {
-        'name': 'Crosslake Communications'
-    },
-    'ctc040': {
-        'name': 'CTC - Brainerd MN'
-    },
-    'phe030': {
-        'name': 'CTV-Beam - East Alabama'
-    },
-    'cun010': {
-        'name': 'Cunningham Telephone & Cable'
-    },
-    'dpc010': {
-        'name': 'D & P Communications'
-    },
-    'dak030': {
-        'name': 'Dakota Central Telecommunications'
-    },
-    'nttcdel010': {
-        'name': 'Delcambre Telephone LLC'
-    },
-    'tel160-del': {
-        'name': 'Delta Telephone Company'
-    },
-    'sal040': {
-        'name': 'DiamondNet'
-    },
-    'ind060-dc': {
-        'name': 'Direct Communications'
-    },
-    'doy010': {
-        'name': 'Doylestown Cable TV'
-    },
-    'dic010': {
-        'name': 'DRN'
-    },
-    'dtc020': {
-        'name': 'DTC'
-    },
-    'dtc010': {
-        'name': 'DTC Cable (Delhi)'
-    },
-    'dum010': {
-        'name': 'Dumont Telephone Company'
-    },
-    'dun010': {
-        'name': 'Dunkerton Telephone Cooperative'
-    },
-    'cci010': {
-        'name': 'Duo County Telecom'
-    },
-    'eagle': {
-        'name': 'Eagle Communications'
-    },
-    'weh010-east': {
-        'name': 'East Arkansas Cable TV'
-    },
-    'eatel': {
-        'name': 'EATEL Video, LLC'
-    },
-    'ell010': {
-        'name': 'ECTA'
-    },
-    'emerytelcom': {
-        'name': 'Emery Telcom Video LLC'
-    },
-    'nor200': {
-        'name': 'Empire Access'
-    },
-    'endeavor': {
-        'name': 'Endeavor Communications'
-    },
-    'sun045': {
-        'name': 'Enhanced Telecommunications Corporation'
-    },
-    'mid030': {
-        'name': 'enTouch'
-    },
-    'epb020': {
-        'name': 'EPB Smartnet'
-    },
-    'jea010': {
-        'name': 'EPlus Broadband'
-    },
-    'com065': {
-        'name': 'ETC'
-    },
-    'ete010': {
-        'name': 'Etex Communications'
-    },
-    'fbc-tele': {
-        'name': 'F&B Communications'
-    },
-    'fal010': {
-        'name': 'Falcon Broadband'
-    },
-    'fam010': {
-        'name': 'FamilyView CableVision'
-    },
-    'far020': {
-        'name': 'Farmers Mutual Telephone Company'
-    },
-    'fay010': {
-        'name': 'Fayetteville Public Utilities'
-    },
-    'sal060': {
-        'name': 'fibrant'
-    },
-    'fid010': {
-        'name': 'Fidelity Communications'
-    },
-    'for030': {
-        'name': 'FJ Communications'
-    },
-    'fli020': {
-        'name': 'Flint River Communications'
-    },
-    'far030': {
-        'name': 'FMT - Jesup'
-    },
-    'foo010': {
-        'name': 'Foothills Communications'
-    },
-    'for080': {
-        'name': 'Forsyth CableNet'
-    },
-    'fbcomm': {
-        'name': 'Frankfort Plant Board'
-    },
-    'tel160-fra': {
-        'name': 'Franklin Telephone Company'
-    },
-    'nttcftc010': {
-        'name': 'FTC'
-    },
-    'fullchannel': {
-        'name': 'Full Channel, Inc.'
-    },
-    'gar040': {
-        'name': 'Gardonville Cooperative Telephone Association'
-    },
-    'gbt010': {
-        'name': 'GBT Communications, Inc.'
-    },
-    'tec010': {
-        'name': 'Genuine Telecom'
-    },
-    'clr010': {
-        'name': 'Giant Communications'
-    },
-    'gla010': {
-        'name': 'Glasgow EPB'
-    },
-    'gle010': {
-        'name': 'Glenwood Telecommunications'
-    },
-    'gra060': {
-        'name': 'GLW Broadband Inc.'
-    },
-    'goldenwest': {
-        'name': 'Golden West Cablevision'
-    },
-    'vis030': {
-        'name': 'Grantsburg Telcom'
-    },
-    'gpcom': {
-        'name': 'Great Plains Communications'
-    },
-    'gri010': {
-        'name': 'Gridley Cable Inc'
-    },
-    'hbc010': {
-        'name': 'H&B Cable Services'
-    },
-    'hae010': {
-        'name': 'Haefele TV Inc.'
-    },
-    'htc010': {
-        'name': 'Halstad Telephone Company'
-    },
-    'har005': {
-        'name': 'Harlan Municipal Utilities'
-    },
-    'har020': {
-        'name': 'Hart Communications'
-    },
-    'ced010': {
-        'name': 'Hartelco TV'
-    },
-    'hea040': {
-        'name': 'Heart of Iowa Communications Cooperative'
-    },
-    'htc020': {
-        'name': 'Hickory Telephone Company'
-    },
-    'nttchig010': {
-        'name': 'Highland Communication Services'
-    },
-    'hig030': {
-        'name': 'Highland Media'
-    },
-    'spc010': {
-        'name': 'Hilliary Communications'
-    },
-    'hin020': {
-        'name': 'Hinton CATV Co.'
-    },
-    'hometel': {
-        'name': 'HomeTel Entertainment, Inc.'
-    },
-    'hoodcanal': {
-        'name': 'Hood Canal Communications'
-    },
-    'weh010-hope': {
-        'name': 'Hope - Prescott Cable TV'
-    },
-    'horizoncable': {
-        'name': 'Horizon Cable TV, Inc.'
-    },
-    'hor040': {
-        'name': 'Horizon Chillicothe Telephone'
-    },
-    'htc030': {
-        'name': 'HTC Communications Co. - IL'
-    },
-    'htccomm': {
-        'name': 'HTC Communications, Inc. - IA'
-    },
-    'wal005': {
-        'name': 'Huxley Communications'
-    },
-    'imon': {
-        'name': 'ImOn Communications'
-    },
-    'ind040': {
-        'name': 'Independence Telecommunications'
-    },
-    'rrc010': {
-        'name': 'Inland Networks'
-    },
-    'stc020': {
-        'name': 'Innovative Cable TV St Croix'
-    },
-    'car100': {
-        'name': 'Innovative Cable TV St Thomas-St John'
-    },
-    'icc010': {
-        'name': 'Inside Connect Cable'
-    },
-    'int100': {
-        'name': 'Integra Telecom'
-    },
-    'int050': {
-        'name': 'Interstate Telecommunications Coop'
-    },
-    'irv010': {
-        'name': 'Irvine Cable'
-    },
-    'k2c010': {
-        'name': 'K2 Communications'
-    },
-    'kal010': {
-        'name': 'Kalida Telephone Company, Inc.'
-    },
-    'kal030': {
-        'name': 'Kalona Cooperative Telephone Company'
-    },
-    'kmt010': {
-        'name': 'KMTelecom'
-    },
-    'kpu010': {
-        'name': 'KPU Telecommunications'
-    },
-    'kuh010': {
-        'name': 'Kuhn Communications, Inc.'
-    },
-    'lak130': {
-        'name': 'Lakeland Communications'
-    },
-    'lan010': {
-        'name': 'Langco'
-    },
-    'lau020': {
-        'name': 'Laurel Highland Total Communications, Inc.'
-    },
-    'leh010': {
-        'name': 'Lehigh Valley Cooperative Telephone'
-    },
-    'bra010': {
-        'name': 'Limestone Cable/Bracken Cable'
-    },
-    'loc020': {
-        'name': 'LISCO'
-    },
-    'lit020': {
-        'name': 'Litestream'
-    },
-    'tel140': {
-        'name': 'LivCom'
-    },
-    'loc010': {
-        'name': 'LocalTel Communications'
-    },
-    'weh010-longview': {
-        'name': 'Longview - Kilgore Cable TV'
-    },
-    'lon030': {
-        'name': 'Lonsdale Video Ventures, LLC'
-    },
-    'lns010': {
-        'name': 'Lost Nation-Elwood Telephone Co.'
-    },
-    'nttclpc010': {
-        'name': 'LPC Connect'
-    },
-    'lumos': {
-        'name': 'Lumos Networks'
-    },
-    'madison': {
-        'name': 'Madison Communications'
-    },
-    'mad030': {
-        'name': 'Madison County Cable Inc.'
-    },
-    'nttcmah010': {
-        'name': 'Mahaska Communication Group'
-    },
-    'mar010': {
-        'name': 'Marne & Elk Horn Telephone Company'
-    },
-    'mcc040': {
-        'name': 'McClure Telephone Co.'
-    },
-    'mctv': {
-        'name': 'MCTV'
-    },
-    'merrimac': {
-        'name': 'Merrimac Communications Ltd.'
-    },
-    'metronet': {
-        'name': 'Metronet'
-    },
-    'mhtc': {
-        'name': 'MHTC'
-    },
-    'midhudson': {
-        'name': 'Mid-Hudson Cable'
-    },
-    'midrivers': {
-        'name': 'Mid-Rivers Communications'
-    },
-    'mid045': {
-        'name': 'Midstate Communications'
-    },
-    'mil080': {
-        'name': 'Milford Communications'
-    },
-    'min030': {
-        'name': 'MINET'
-    },
-    'nttcmin010': {
-        'name': 'Minford TV'
-    },
-    'san040-02': {
-        'name': 'Mitchell Telecom'
-    },
-    'mlg010': {
-        'name': 'MLGC'
-    },
-    'mon060': {
-        'name': 'Mon-Cre TVE'
-    },
-    'mou110': {
-        'name': 'Mountain Telephone'
-    },
-    'mou050': {
-        'name': 'Mountain Village Cable'
-    },
-    'mtacomm': {
-        'name': 'MTA Communications, LLC'
-    },
-    'mtc010': {
-        'name': 'MTC Cable'
-    },
-    'med040': {
-        'name': 'MTC Technologies'
-    },
-    'man060': {
-        'name': 'MTCC'
-    },
-    'mtc030': {
-        'name': 'MTCO Communications'
-    },
-    'mul050': {
-        'name': 'Mulberry Telecommunications'
-    },
-    'mur010': {
-        'name': 'Murray Electric System'
-    },
-    'musfiber': {
-        'name': 'MUS FiberNET'
-    },
-    'mpw': {
-        'name': 'Muscatine Power & Water'
-    },
-    'nttcsli010': {
-        'name': 'myEVTV.com'
-    },
-    'nor115': {
-        'name': 'NCC'
-    },
-    'nor260': {
-        'name': 'NDTC'
-    },
-    'nctc': {
-        'name': 'Nebraska Central Telecom, Inc.'
-    },
-    'nel020': {
-        'name': 'Nelsonville TV Cable'
-    },
-    'nem010': {
-        'name': 'Nemont'
-    },
-    'new075': {
-        'name': 'New Hope Telephone Cooperative'
-    },
-    'nor240': {
-        'name': 'NICP'
-    },
-    'cic010': {
-        'name': 'NineStar Connect'
-    },
-    'nktelco': {
-        'name': 'NKTelco'
-    },
-    'nortex': {
-        'name': 'Nortex Communications'
-    },
-    'nor140': {
-        'name': 'North Central Telephone Cooperative'
-    },
-    'nor030': {
-        'name': 'Northland Communications'
-    },
-    'nor075': {
-        'name': 'Northwest Communications'
-    },
-    'nor125': {
-        'name': 'Norwood Light Broadband'
-    },
-    'net010': {
-        'name': 'Nsight Telservices'
-    },
-    'dur010': {
-        'name': 'Ntec'
-    },
-    'nts010': {
-        'name': 'NTS Communications'
-    },
-    'new045': {
-        'name': 'NU-Telecom'
-    },
-    'nulink': {
-        'name': 'NuLink'
-    },
-    'jam030': {
-        'name': 'NVC'
-    },
-    'far035': {
-        'name': 'OmniTel Communications'
-    },
-    'onesource': {
-        'name': 'OneSource Communications'
-    },
-    'cit230': {
-        'name': 'Opelika Power Services'
-    },
-    'daltonutilities': {
-        'name': 'OptiLink'
-    },
-    'mid140': {
-        'name': 'OPTURA'
-    },
-    'ote010': {
-        'name': 'OTEC Communication Company'
-    },
-    'cci020': {
-        'name': 'Packerland Broadband'
-    },
-    'pan010': {
-        'name': 'Panora Telco/Guthrie Center Communications'
-    },
-    'otter': {
-        'name': 'Park Region Telephone & Otter Tail Telcom'
-    },
-    'mid050': {
-        'name': 'Partner Communications Cooperative'
-    },
-    'fib010': {
-        'name': 'Pathway'
-    },
-    'paulbunyan': {
-        'name': 'Paul Bunyan Communications'
-    },
-    'pem020': {
-        'name': 'Pembroke Telephone Company'
-    },
-    'mck010': {
-        'name': 'Peoples Rural Telephone Cooperative'
-    },
-    'pul010': {
-        'name': 'PES Energize'
-    },
-    'phi010': {
-        'name': 'Philippi Communications System'
-    },
-    'phonoscope': {
-        'name': 'Phonoscope Cable'
-    },
-    'pin070': {
-        'name': 'Pine Belt Communications, Inc.'
-    },
-    'weh010-pine': {
-        'name': 'Pine Bluff Cable TV'
-    },
-    'pin060': {
-        'name': 'Pineland Telephone Cooperative'
-    },
-    'cam010': {
-        'name': 'Pinpoint Communications'
-    },
-    'pio060': {
-        'name': 'Pioneer Broadband'
-    },
-    'pioncomm': {
-        'name': 'Pioneer Communications'
-    },
-    'pioneer': {
-        'name': 'Pioneer DTV'
-    },
-    'pla020': {
-        'name': 'Plant TiftNet, Inc.'
-    },
-    'par010': {
-        'name': 'PLWC'
-    },
-    'pro035': {
-        'name': 'PMT'
-    },
-    'vik011': {
-        'name': 'Polar Cablevision'
-    },
-    'pottawatomie': {
-        'name': 'Pottawatomie Telephone Co.'
-    },
-    'premiercomm': {
-        'name': 'Premier Communications'
-    },
-    'psc010': {
-        'name': 'PSC'
-    },
-    'pan020': {
-        'name': 'PTCI'
-    },
-    'qco010': {
-        'name': 'QCOL'
-    },
-    'qua010': {
-        'name': 'Quality Cablevision'
-    },
-    'rad010': {
-        'name': 'Radcliffe Telephone Company'
-    },
-    'car040': {
-        'name': 'Rainbow Communications'
-    },
-    'rai030': {
-        'name': 'Rainier Connect'
-    },
-    'ral010': {
-        'name': 'Ralls Technologies'
-    },
-    'rct010': {
-        'name': 'RC Technologies'
-    },
-    'red040': {
-        'name': 'Red River Communications'
-    },
-    'ree010': {
-        'name': 'Reedsburg Utility Commission'
-    },
-    'mol010': {
-        'name': 'Reliance Connects- Oregon'
-    },
-    'res020': {
-        'name': 'Reserve Telecommunications'
-    },
-    'weh010-resort': {
-        'name': 'Resort TV Cable'
-    },
-    'rld010': {
-        'name': 'Richland Grant Telephone Cooperative, Inc.'
-    },
-    'riv030': {
-        'name': 'River Valley Telecommunications Coop'
-    },
-    'rockportcable': {
-        'name': 'Rock Port Cablevision'
-    },
-    'rsf010': {
-        'name': 'RS Fiber'
-    },
-    'rtc': {
-        'name': 'RTC Communication Corp'
-    },
-    'res040': {
-        'name': 'RTC-Reservation Telephone Coop.'
-    },
-    'rte010': {
-        'name': 'RTEC Communications'
-    },
-    'stc010': {
-        'name': 'S&T'
-    },
-    'san020': {
-        'name': 'San Bruno Cable TV'
-    },
-    'san040-01': {
-        'name': 'Santel'
-    },
-    'sav010': {
-        'name': 'SCI Broadband-Savage Communications Inc.'
-    },
-    'sco050': {
-        'name': 'Scottsboro Electric Power Board'
-    },
-    'scr010': {
-        'name': 'Scranton Telephone Company'
-    },
-    'selco': {
-        'name': 'SELCO'
-    },
-    'she010': {
-        'name': 'Shentel'
-    },
-    'she030': {
-        'name': 'Sherwood Mutual Telephone Association, Inc.'
-    },
-    'ind060-ssc': {
-        'name': 'Silver Star Communications'
-    },
-    'sjoberg': {
-        'name': 'Sjoberg\'s Inc.'
-    },
-    'sou025': {
-        'name': 'SKT'
-    },
-    'sky050': {
-        'name': 'SkyBest TV'
-    },
-    'nttcsmi010': {
-        'name': 'Smithville Communications'
-    },
-    'woo010': {
-        'name': 'Solarus'
-    },
-    'sou075': {
-        'name': 'South Central Rural Telephone Cooperative'
-    },
-    'sou065': {
-        'name': 'South Holt Cablevision, Inc.'
-    },
-    'sou035': {
-        'name': 'South Slope Cooperative Communications'
-    },
-    'spa020': {
-        'name': 'Spanish Fork Community Network'
-    },
-    'spe010': {
-        'name': 'Spencer Municipal Utilities'
-    },
-    'spi005': {
-        'name': 'Spillway Communications, Inc.'
-    },
-    'srt010': {
-        'name': 'SRT'
-    },
-    'cccsmc010': {
-        'name': 'St. Maarten Cable TV'
-    },
-    'sta025': {
-        'name': 'Star Communications'
-    },
-    'sco020': {
-        'name': 'STE'
-    },
-    'uin010': {
-        'name': 'STRATA Networks'
-    },
-    'sum010': {
-        'name': 'Sumner Cable TV'
-    },
-    'pie010': {
-        'name': 'Surry TV/PCSI TV'
-    },
-    'swa010': {
-        'name': 'Swayzee Communications'
-    },
-    'sweetwater': {
-        'name': 'Sweetwater Cable Television Co'
-    },
-    'weh010-talequah': {
-        'name': 'Tahlequah Cable TV'
-    },
-    'tct': {
-        'name': 'TCT'
-    },
-    'tel050': {
-        'name': 'Tele-Media Company'
-    },
-    'com050': {
-        'name': 'The Community Agency'
-    },
-    'thr020': {
-        'name': 'Three River'
-    },
-    'cab140': {
-        'name': 'Town & Country Technologies'
-    },
-    'tra010': {
-        'name': 'Trans-Video'
-    },
-    'tre010': {
-        'name': 'Trenton TV Cable Company'
-    },
-    'tcc': {
-        'name': 'Tri County Communications Cooperative'
-    },
-    'tri025': {
-        'name': 'TriCounty Telecom'
-    },
-    'tri110': {
-        'name': 'TrioTel Communications, Inc.'
-    },
-    'tro010': {
-        'name': 'Troy Cablevision, Inc.'
-    },
-    'tsc': {
-        'name': 'TSC'
-    },
-    'cit220': {
-        'name': 'Tullahoma Utilities Board'
-    },
-    'tvc030': {
-        'name': 'TV Cable of Rensselaer'
-    },
-    'tvc015': {
-        'name': 'TVC Cable'
-    },
-    'cab180': {
-        'name': 'TVision'
-    },
-    'twi040': {
-        'name': 'Twin Lakes'
-    },
-    'tvtinc': {
-        'name': 'Twin Valley'
-    },
-    'uis010': {
-        'name': 'Union Telephone Company'
-    },
-    'uni110': {
-        'name': 'United Communications - TN'
-    },
-    'uni120': {
-        'name': 'United Services'
-    },
-    'uss020': {
-        'name': 'US Sonet'
-    },
-    'cab060': {
-        'name': 'USA Communications'
-    },
-    'she005': {
-        'name': 'USA Communications/Shellsburg, IA'
-    },
-    'val040': {
-        'name': 'Valley TeleCom Group'
-    },
-    'val025': {
-        'name': 'Valley Telecommunications'
-    },
-    'val030': {
-        'name': 'Valparaiso Broadband'
-    },
-    'cla050': {
-        'name': 'Vast Broadband'
-    },
-    'sul015': {
-        'name': 'Venture Communications Cooperative, Inc.'
-    },
-    'ver025': {
-        'name': 'Vernon Communications Co-op'
-    },
-    'weh010-vicksburg': {
-        'name': 'Vicksburg Video'
-    },
-    'vis070': {
-        'name': 'Vision Communications'
-    },
-    'volcanotel': {
-        'name': 'Volcano Vision, Inc.'
-    },
-    'vol040-02': {
-        'name': 'VolFirst / BLTV'
-    },
-    'ver070': {
-        'name': 'VTel'
-    },
-    'nttcvtx010': {
-        'name': 'VTX1'
-    },
-    'bci010-02': {
-        'name': 'Vyve Broadband'
-    },
-    'wab020': {
-        'name': 'Wabash Mutual Telephone'
-    },
-    'waitsfield': {
-        'name': 'Waitsfield Cable'
-    },
-    'wal010': {
-        'name': 'Walnut Communications'
-    },
-    'wavebroadband': {
-        'name': 'Wave'
-    },
-    'wav030': {
-        'name': 'Waverly Communications Utility'
-    },
-    'wbi010': {
-        'name': 'WBI'
-    },
-    'web020': {
-        'name': 'Webster-Calhoun Cooperative Telephone Association'
-    },
-    'wes005': {
-        'name': 'West Alabama TV Cable'
-    },
-    'carolinata': {
-        'name': 'West Carolina Communications'
-    },
-    'wct010': {
-        'name': 'West Central Telephone Association'
-    },
-    'wes110': {
-        'name': 'West River Cooperative Telephone Company'
-    },
-    'ani030': {
-        'name': 'WesTel Systems'
-    },
-    'westianet': {
-        'name': 'Western Iowa Networks'
-    },
-    'nttcwhi010': {
-        'name': 'Whidbey Telecom'
-    },
-    'weh010-white': {
-        'name': 'White County Cable TV'
-    },
-    'wes130': {
-        'name': 'Wiatel'
-    },
-    'wik010': {
-        'name': 'Wiktel'
-    },
-    'wil070': {
-        'name': 'Wilkes Communications, Inc./RiverStreet Networks'
-    },
-    'wil015': {
-        'name': 'Wilson Communications'
-    },
-    'win010': {
-        'name': 'Windomnet/SMBS'
-    },
-    'win090': {
-        'name': 'Windstream Cable TV'
-    },
-    'wcta': {
-        'name': 'Winnebago Cooperative Telecom Association'
-    },
-    'wtc010': {
-        'name': 'WTC'
-    },
-    'wil040': {
-        'name': 'WTC Communications, Inc.'
-    },
-    'wya010': {
-        'name': 'Wyandotte Cable'
-    },
-    'hin020-02': {
-        'name': 'X-Stream Services'
-    },
-    'xit010': {
-        'name': 'XIT Communications'
-    },
-    'yel010': {
-        'name': 'Yelcot Communications'
-    },
-    'mid180-01': {
-        'name': 'yondoo'
-    },
-    'cou060': {
-        'name': 'Zito Media'
-    },
-}
-
-
-class AdobePassIE(InfoExtractor):
-    _SERVICE_PROVIDER_TEMPLATE = 'https://sp.auth.adobe.com/adobe-services/%s'
-    _USER_AGENT = 'Mozilla/5.0 (X11; Linux i686; rv:47.0) Gecko/20100101 Firefox/47.0'
-    _MVPD_CACHE = 'ap-mvpd'
-
-    _DOWNLOADING_LOGIN_PAGE = 'Downloading Provider Login Page'
-
-    def _download_webpage_handle(self, *args, **kwargs):
-        headers = kwargs.get('headers', {})
-        headers.update(self.geo_verification_headers())
-        kwargs['headers'] = headers
-        return super(AdobePassIE, self)._download_webpage_handle(
-            *args, **compat_kwargs(kwargs))
-
-    @staticmethod
-    def _get_mvpd_resource(provider_id, title, guid, rating):
-        channel = etree.Element('channel')
-        channel_title = etree.SubElement(channel, 'title')
-        channel_title.text = provider_id
-        item = etree.SubElement(channel, 'item')
-        resource_title = etree.SubElement(item, 'title')
-        resource_title.text = title
-        resource_guid = etree.SubElement(item, 'guid')
-        resource_guid.text = guid
-        resource_rating = etree.SubElement(item, 'media:rating')
-        resource_rating.attrib = {'scheme': 'urn:v-chip'}
-        resource_rating.text = rating
-        return '<rss version="2.0" xmlns:media="http://search.yahoo.com/mrss/">' + etree.tostring(channel).decode() + '</rss>'
-
-    def _extract_mvpd_auth(self, url, video_id, requestor_id, resource):
-        def xml_text(xml_str, tag):
-            return self._search_regex(
-                '<%s>(.+?)</%s>' % (tag, tag), xml_str, tag)
-
-        def is_expired(token, date_ele):
-            token_expires = unified_timestamp(re.sub(r'[_ ]GMT', '', xml_text(token, date_ele)))
-            return token_expires and token_expires <= int(time.time())
-
-        def post_form(form_page_res, note, data={}):
-            form_page, urlh = form_page_res
-            post_url = self._html_search_regex(r'<form[^>]+action=(["\'])(?P<url>.+?)\1', form_page, 'post url', group='url')
-            if not re.match(r'https?://', post_url):
-                post_url = compat_urlparse.urljoin(urlh.geturl(), post_url)
-            form_data = self._hidden_inputs(form_page)
-            form_data.update(data)
-            return self._download_webpage_handle(
-                post_url, video_id, note, data=urlencode_postdata(form_data), headers={
-                    'Content-Type': 'application/x-www-form-urlencoded',
-                })
-
-        def raise_mvpd_required():
-            raise ExtractorError(
-                'This video is only available for users of participating TV providers. '
-                'Use --ap-mso to specify Adobe Pass Multiple-system operator Identifier '
-                'and --ap-username and --ap-password or --netrc to provide account credentials.', expected=True)
-
-        def extract_redirect_url(html, url=None, fatal=False):
-            # TODO: eliminate code duplication with generic extractor and move
-            # redirection code into _download_webpage_handle
-            REDIRECT_REGEX = r'[0-9]{,2};\s*(?:URL|url)=\'?([^\'"]+)'
-            redirect_url = self._search_regex(
-                r'(?i)<meta\s+(?=(?:[a-z-]+="[^"]+"\s+)*http-equiv="refresh")'
-                r'(?:[a-z-]+="[^"]+"\s+)*?content="%s' % REDIRECT_REGEX,
-                html, 'meta refresh redirect',
-                default=NO_DEFAULT if fatal else None, fatal=fatal)
-            if not redirect_url:
-                return None
-            if url:
-                redirect_url = compat_urlparse.urljoin(url, unescapeHTML(redirect_url))
-            return redirect_url
-
-        mvpd_headers = {
-            'ap_42': 'anonymous',
-            'ap_11': 'Linux i686',
-            'ap_z': self._USER_AGENT,
-            'User-Agent': self._USER_AGENT,
-        }
-
-        guid = xml_text(resource, 'guid') if '<' in resource else resource
-        count = 0
-        while count < 2:
-            requestor_info = self._downloader.cache.load(self._MVPD_CACHE, requestor_id) or {}
-            authn_token = requestor_info.get('authn_token')
-            if authn_token and is_expired(authn_token, 'simpleTokenExpires'):
-                authn_token = None
-            if not authn_token:
-                # TODO add support for other TV Providers
-                mso_id = self._downloader.params.get('ap_mso')
-                if not mso_id:
-                    raise_mvpd_required()
-                username, password = self._get_login_info('ap_username', 'ap_password', mso_id)
-                if not username or not password:
-                    raise_mvpd_required()
-                mso_info = MSO_INFO[mso_id]
-
-                provider_redirect_page_res = self._download_webpage_handle(
-                    self._SERVICE_PROVIDER_TEMPLATE % 'authenticate/saml', video_id,
-                    'Downloading Provider Redirect Page', query={
-                        'noflash': 'true',
-                        'mso_id': mso_id,
-                        'requestor_id': requestor_id,
-                        'no_iframe': 'false',
-                        'domain_name': 'adobe.com',
-                        'redirect_url': url,
-                    })
-
-                if mso_id == 'Comcast_SSO':
-                    # Comcast page flow varies by video site and whether you
-                    # are on Comcast's network.
-                    provider_redirect_page, urlh = provider_redirect_page_res
-                    if 'automatically signing you in' in provider_redirect_page:
-                        oauth_redirect_url = self._html_search_regex(
-                            r'window\.location\s*=\s*[\'"]([^\'"]+)',
-                            provider_redirect_page, 'oauth redirect')
-                        self._download_webpage(
-                            oauth_redirect_url, video_id, 'Confirming auto login')
-                    else:
-                        if '<form name="signin"' in provider_redirect_page:
-                            provider_login_page_res = provider_redirect_page_res
-                        elif 'http-equiv="refresh"' in provider_redirect_page:
-                            oauth_redirect_url = extract_redirect_url(
-                                provider_redirect_page, fatal=True)
-                            provider_login_page_res = self._download_webpage_handle(
-                                oauth_redirect_url, video_id,
-                                self._DOWNLOADING_LOGIN_PAGE)
-                        else:
-                            provider_login_page_res = post_form(
-                                provider_redirect_page_res,
-                                self._DOWNLOADING_LOGIN_PAGE)
-
-                        mvpd_confirm_page_res = post_form(
-                            provider_login_page_res, 'Logging in', {
-                                mso_info['username_field']: username,
-                                mso_info['password_field']: password,
-                            })
-                        mvpd_confirm_page, urlh = mvpd_confirm_page_res
-                        if '<button class="submit" value="Resume">Resume</button>' in mvpd_confirm_page:
-                            post_form(mvpd_confirm_page_res, 'Confirming Login')
-                elif mso_id == 'Verizon':
-                    # In general, if you're connecting from a Verizon-assigned IP,
-                    # you will not actually pass your credentials.
-                    provider_redirect_page, urlh = provider_redirect_page_res
-                    if 'Please wait ...' in provider_redirect_page:
-                        saml_redirect_url = self._html_search_regex(
-                            r'self\.parent\.location=(["\'])(?P<url>.+?)\1',
-                            provider_redirect_page,
-                            'SAML Redirect URL', group='url')
-                        saml_login_page = self._download_webpage(
-                            saml_redirect_url, video_id,
-                            'Downloading SAML Login Page')
-                    else:
-                        saml_login_page_res = post_form(
-                            provider_redirect_page_res, 'Logging in', {
-                                mso_info['username_field']: username,
-                                mso_info['password_field']: password,
-                            })
-                        saml_login_page, urlh = saml_login_page_res
-                        if 'Please try again.' in saml_login_page:
-                            raise ExtractorError(
-                                'We\'re sorry, but either the User ID or Password entered is not correct.')
-                    saml_login_url = self._search_regex(
-                        r'xmlHttp\.open\("POST"\s*,\s*(["\'])(?P<url>.+?)\1',
-                        saml_login_page, 'SAML Login URL', group='url')
-                    saml_response_json = self._download_json(
-                        saml_login_url, video_id, 'Downloading SAML Response',
-                        headers={'Content-Type': 'text/xml'})
-                    self._download_webpage(
-                        saml_response_json['targetValue'], video_id,
-                        'Confirming Login', data=urlencode_postdata({
-                            'SAMLResponse': saml_response_json['SAMLResponse'],
-                            'RelayState': saml_response_json['RelayState']
-                        }), headers={
-                            'Content-Type': 'application/x-www-form-urlencoded'
-                        })
-                else:
-                    # Some providers (e.g. DIRECTV NOW) have another meta refresh
-                    # based redirect that should be followed.
-                    provider_redirect_page, urlh = provider_redirect_page_res
-                    provider_refresh_redirect_url = extract_redirect_url(
-                        provider_redirect_page, url=urlh.geturl())
-                    if provider_refresh_redirect_url:
-                        provider_redirect_page_res = self._download_webpage_handle(
-                            provider_refresh_redirect_url, video_id,
-                            'Downloading Provider Redirect Page (meta refresh)')
-                    provider_login_page_res = post_form(
-                        provider_redirect_page_res, self._DOWNLOADING_LOGIN_PAGE)
-                    mvpd_confirm_page_res = post_form(provider_login_page_res, 'Logging in', {
-                        mso_info.get('username_field', 'username'): username,
-                        mso_info.get('password_field', 'password'): password,
-                    })
-                    if mso_id != 'Rogers':
-                        post_form(mvpd_confirm_page_res, 'Confirming Login')
-
-                session = self._download_webpage(
-                    self._SERVICE_PROVIDER_TEMPLATE % 'session', video_id,
-                    'Retrieving Session', data=urlencode_postdata({
-                        '_method': 'GET',
-                        'requestor_id': requestor_id,
-                    }), headers=mvpd_headers)
-                if '<pendingLogout' in session:
-                    self._downloader.cache.store(self._MVPD_CACHE, requestor_id, {})
-                    count += 1
-                    continue
-                authn_token = unescapeHTML(xml_text(session, 'authnToken'))
-                requestor_info['authn_token'] = authn_token
-                self._downloader.cache.store(self._MVPD_CACHE, requestor_id, requestor_info)
-
-            authz_token = requestor_info.get(guid)
-            if authz_token and is_expired(authz_token, 'simpleTokenTTL'):
-                authz_token = None
-            if not authz_token:
-                authorize = self._download_webpage(
-                    self._SERVICE_PROVIDER_TEMPLATE % 'authorize', video_id,
-                    'Retrieving Authorization Token', data=urlencode_postdata({
-                        'resource_id': resource,
-                        'requestor_id': requestor_id,
-                        'authentication_token': authn_token,
-                        'mso_id': xml_text(authn_token, 'simpleTokenMsoID'),
-                        'userMeta': '1',
-                    }), headers=mvpd_headers)
-                if '<pendingLogout' in authorize:
-                    self._downloader.cache.store(self._MVPD_CACHE, requestor_id, {})
-                    count += 1
-                    continue
-                if '<error' in authorize:
-                    raise ExtractorError(xml_text(authorize, 'details'), expected=True)
-                authz_token = unescapeHTML(xml_text(authorize, 'authzToken'))
-                requestor_info[guid] = authz_token
-                self._downloader.cache.store(self._MVPD_CACHE, requestor_id, requestor_info)
-
-            mvpd_headers.update({
-                'ap_19': xml_text(authn_token, 'simpleSamlNameID'),
-                'ap_23': xml_text(authn_token, 'simpleSamlSessionIndex'),
-            })
-
-            short_authorize = self._download_webpage(
-                self._SERVICE_PROVIDER_TEMPLATE % 'shortAuthorize',
-                video_id, 'Retrieving Media Token', data=urlencode_postdata({
-                    'authz_token': authz_token,
-                    'requestor_id': requestor_id,
-                    'session_guid': xml_text(authn_token, 'simpleTokenAuthenticationGuid'),
-                    'hashed_guid': 'false',
-                }), headers=mvpd_headers)
-            if '<pendingLogout' in short_authorize:
-                self._downloader.cache.store(self._MVPD_CACHE, requestor_id, {})
-                count += 1
-                continue
-            return short_authorize
diff --git a/youtube_dl/extractor/common.py b/youtube_dl/extractor/common.py
deleted file mode 100644
index 5d4db54..0000000
--- a/youtube_dl/extractor/common.py
+++ /dev/null
@@ -1,2862 +0,0 @@
-# coding: utf-8
-from __future__ import unicode_literals
-
-import base64
-import datetime
-import hashlib
-import json
-import netrc
-import os
-import random
-import re
-import socket
-import sys
-import time
-import math
-
-from ..compat import (
-    compat_cookiejar,
-    compat_cookies,
-    compat_etree_fromstring,
-    compat_getpass,
-    compat_integer_types,
-    compat_http_client,
-    compat_os_name,
-    compat_str,
-    compat_urllib_error,
-    compat_urllib_parse_unquote,
-    compat_urllib_parse_urlencode,
-    compat_urllib_request,
-    compat_urlparse,
-    compat_xml_parse_error,
-)
-from ..downloader.f4m import (
-    get_base_url,
-    remove_encrypted_media,
-)
-from ..utils import (
-    NO_DEFAULT,
-    age_restricted,
-    base_url,
-    bug_reports_message,
-    clean_html,
-    compiled_regex_type,
-    determine_ext,
-    determine_protocol,
-    error_to_compat_str,
-    ExtractorError,
-    extract_attributes,
-    fix_xml_ampersands,
-    float_or_none,
-    GeoRestrictedError,
-    GeoUtils,
-    int_or_none,
-    js_to_json,
-    JSON_LD_RE,
-    mimetype2ext,
-    orderedSet,
-    parse_codecs,
-    parse_duration,
-    parse_iso8601,
-    parse_m3u8_attributes,
-    RegexNotFoundError,
-    sanitized_Request,
-    sanitize_filename,
-    unescapeHTML,
-    unified_strdate,
-    unified_timestamp,
-    update_Request,
-    update_url_query,
-    urljoin,
-    url_basename,
-    xpath_element,
-    xpath_text,
-    xpath_with_ns,
-)
-
-
-class InfoExtractor(object):
-    """Information Extractor class.
-
-    Information extractors are the classes that, given a URL, extract
-    information about the video (or videos) the URL refers to. This
-    information includes the real video URL, the video title, author and
-    others. The information is stored in a dictionary which is then
-    passed to the YoutubeDL. The YoutubeDL processes this
-    information possibly downloading the video to the file system, among
-    other possible outcomes.
-
-    The type field determines the type of the result.
-    By far the most common value (and the default if _type is missing) is
-    "video", which indicates a single video.
-
-    For a video, the dictionaries must include the following fields:
-
-    id:             Video identifier.
-    title:          Video title, unescaped.
-
-    Additionally, it must contain either a formats entry or a url one:
-
-    formats:        A list of dictionaries for each format available, ordered
-                    from worst to best quality.
-
-                    Potential fields:
-                    * url        Mandatory. The URL of the video file
-                    * manifest_url
-                                 The URL of the manifest file in case of
-                                 fragmented media (DASH, hls, hds)
-                    * ext        Will be calculated from URL if missing
-                    * format     A human-readable description of the format
-                                 ("mp4 container with h264/opus").
-                                 Calculated from the format_id, width, height.
-                                 and format_note fields if missing.
-                    * format_id  A short description of the format
-                                 ("mp4_h264_opus" or "19").
-                                Technically optional, but strongly recommended.
-                    * format_note Additional info about the format
-                                 ("3D" or "DASH video")
-                    * width      Width of the video, if known
-                    * height     Height of the video, if known
-                    * resolution Textual description of width and height
-                    * tbr        Average bitrate of audio and video in KBit/s
-                    * abr        Average audio bitrate in KBit/s
-                    * acodec     Name of the audio codec in use
-                    * asr        Audio sampling rate in Hertz
-                    * vbr        Average video bitrate in KBit/s
-                    * fps        Frame rate
-                    * vcodec     Name of the video codec in use
-                    * container  Name of the container format
-                    * filesize   The number of bytes, if known in advance
-                    * filesize_approx  An estimate for the number of bytes
-                    * player_url SWF Player URL (used for rtmpdump).
-                    * protocol   The protocol that will be used for the actual
-                                 download, lower-case.
-                                 "http", "https", "rtsp", "rtmp", "rtmpe",
-                                 "m3u8", "m3u8_native" or "http_dash_segments".
-                    * fragment_base_url
-                                 Base URL for fragments. Each fragment's path
-                                 value (if present) will be relative to
-                                 this URL.
-                    * fragments  A list of fragments of a fragmented media.
-                                 Each fragment entry must contain either an url
-                                 or a path. If an url is present it should be
-                                 considered by a client. Otherwise both path and
-                                 fragment_base_url must be present. Here is
-                                 the list of all potential fields:
-                                 * "url" - fragment's URL
-                                 * "path" - fragment's path relative to
-                                            fragment_base_url
-                                 * "duration" (optional, int or float)
-                                 * "filesize" (optional, int)
-                    * preference Order number of this format. If this field is
-                                 present and not None, the formats get sorted
-                                 by this field, regardless of all other values.
-                                 -1 for default (order by other properties),
-                                 -2 or smaller for less than default.
-                                 < -1000 to hide the format (if there is
-                                    another one which is strictly better)
-                    * language   Language code, e.g. "de" or "en-US".
-                    * language_preference  Is this in the language mentioned in
-                                 the URL?
-                                 10 if it's what the URL is about,
-                                 -1 for default (don't know),
-                                 -10 otherwise, other values reserved for now.
-                    * quality    Order number of the video quality of this
-                                 format, irrespective of the file format.
-                                 -1 for default (order by other properties),
-                                 -2 or smaller for less than default.
-                    * source_preference  Order number for this video source
-                                  (quality takes higher priority)
-                                 -1 for default (order by other properties),
-                                 -2 or smaller for less than default.
-                    * http_headers  A dictionary of additional HTTP headers
-                                 to add to the request.
-                    * stretched_ratio  If given and not 1, indicates that the
-                                 video's pixels are not square.
-                                 width : height ratio as float.
-                    * no_resume  The server does not support resuming the
-                                 (HTTP or RTMP) download. Boolean.
-                    * downloader_options  A dictionary of downloader options as
-                                 described in FileDownloader
-
-    url:            Final video URL.
-    ext:            Video filename extension.
-    format:         The video format, defaults to ext (used for --get-format)
-    player_url:     SWF Player URL (used for rtmpdump).
-
-    The following fields are optional:
-
-    alt_title:      A secondary title of the video.
-    display_id      An alternative identifier for the video, not necessarily
-                    unique, but available before title. Typically, id is
-                    something like "4234987", title "Dancing naked mole rats",
-                    and display_id "dancing-naked-mole-rats"
-    thumbnails:     A list of dictionaries, with the following entries:
-                        * "id" (optional, string) - Thumbnail format ID
-                        * "url"
-                        * "preference" (optional, int) - quality of the image
-                        * "width" (optional, int)
-                        * "height" (optional, int)
-                        * "resolution" (optional, string "{width}x{height"},
-                                        deprecated)
-                        * "filesize" (optional, int)
-    thumbnail:      Full URL to a video thumbnail image.
-    description:    Full video description.
-    uploader:       Full name of the video uploader.
-    license:        License name the video is licensed under.
-    creator:        The creator of the video.
-    release_date:   The date (YYYYMMDD) when the video was released.
-    timestamp:      UNIX timestamp of the moment the video became available.
-    upload_date:    Video upload date (YYYYMMDD).
-                    If not explicitly set, calculated from timestamp.
-    uploader_id:    Nickname or id of the video uploader.
-    uploader_url:   Full URL to a personal webpage of the video uploader.
-    location:       Physical location where the video was filmed.
-    subtitles:      The available subtitles as a dictionary in the format
-                    {tag: subformats}. "tag" is usually a language code, and
-                    "subformats" is a list sorted from lower to higher
-                    preference, each element is a dictionary with the "ext"
-                    entry and one of:
-                        * "data": The subtitles file contents
-                        * "url": A URL pointing to the subtitles file
-                    "ext" will be calculated from URL if missing
-    automatic_captions: Like 'subtitles', used by the YoutubeIE for
-                    automatically generated captions
-    duration:       Length of the video in seconds, as an integer or float.
-    view_count:     How many users have watched the video on the platform.
-    like_count:     Number of positive ratings of the video
-    dislike_count:  Number of negative ratings of the video
-    repost_count:   Number of reposts of the video
-    average_rating: Average rating give by users, the scale used depends on the webpage
-    comment_count:  Number of comments on the video
-    comments:       A list of comments, each with one or more of the following
-                    properties (all but one of text or html optional):
-                        * "author" - human-readable name of the comment author
-                        * "author_id" - user ID of the comment author
-                        * "id" - Comment ID
-                        * "html" - Comment as HTML
-                        * "text" - Plain text of the comment
-                        * "timestamp" - UNIX timestamp of comment
-                        * "parent" - ID of the comment this one is replying to.
-                                     Set to "root" to indicate that this is a
-                                     comment to the original video.
-    age_limit:      Age restriction for the video, as an integer (years)
-    webpage_url:    The URL to the video webpage, if given to youtube-dl it
-                    should allow to get the same result again. (It will be set
-                    by YoutubeDL if it's missing)
-    categories:     A list of categories that the video falls in, for example
-                    ["Sports", "Berlin"]
-    tags:           A list of tags assigned to the video, e.g. ["sweden", "pop music"]
-    is_live:        True, False, or None (=unknown). Whether this video is a
-                    live stream that goes on instead of a fixed-length video.
-    start_time:     Time in seconds where the reproduction should start, as
-                    specified in the URL.
-    end_time:       Time in seconds where the reproduction should end, as
-                    specified in the URL.
-    chapters:       A list of dictionaries, with the following entries:
-                        * "start_time" - The start time of the chapter in seconds
-                        * "end_time" - The end time of the chapter in seconds
-                        * "title" (optional, string)
-
-    The following fields should only be used when the video belongs to some logical
-    chapter or section:
-
-    chapter:        Name or title of the chapter the video belongs to.
-    chapter_number: Number of the chapter the video belongs to, as an integer.
-    chapter_id:     Id of the chapter the video belongs to, as a unicode string.
-
-    The following fields should only be used when the video is an episode of some
-    series, programme or podcast:
-
-    series:         Title of the series or programme the video episode belongs to.
-    season:         Title of the season the video episode belongs to.
-    season_number:  Number of the season the video episode belongs to, as an integer.
-    season_id:      Id of the season the video episode belongs to, as a unicode string.
-    episode:        Title of the video episode. Unlike mandatory video title field,
-                    this field should denote the exact title of the video episode
-                    without any kind of decoration.
-    episode_number: Number of the video episode within a season, as an integer.
-    episode_id:     Id of the video episode, as a unicode string.
-
-    The following fields should only be used when the media is a track or a part of
-    a music album:
-
-    track:          Title of the track.
-    track_number:   Number of the track within an album or a disc, as an integer.
-    track_id:       Id of the track (useful in case of custom indexing, e.g. 6.iii),
-                    as a unicode string.
-    artist:         Artist(s) of the track.
-    genre:          Genre(s) of the track.
-    album:          Title of the album the track belongs to.
-    album_type:     Type of the album (e.g. "Demo", "Full-length", "Split", "Compilation", etc).
-    album_artist:   List of all artists appeared on the album (e.g.
-                    "Ash Borer / Fell Voices" or "Various Artists", useful for splits
-                    and compilations).
-    disc_number:    Number of the disc or other physical medium the track belongs to,
-                    as an integer.
-    release_year:   Year (YYYY) when the album was released.
-
-    Unless mentioned otherwise, the fields should be Unicode strings.
-
-    Unless mentioned otherwise, None is equivalent to absence of information.
-
-
-    _type "playlist" indicates multiple videos.
-    There must be a key "entries", which is a list, an iterable, or a PagedList
-    object, each element of which is a valid dictionary by this specification.
-
-    Additionally, playlists can have "id", "title", "description", "uploader",
-    "uploader_id", "uploader_url" attributes with the same semantics as videos
-    (see above).
-
-
-    _type "multi_video" indicates that there are multiple videos that
-    form a single show, for examples multiple acts of an opera or TV episode.
-    It must have an entries key like a playlist and contain all the keys
-    required for a video at the same time.
-
-
-    _type "url" indicates that the video must be extracted from another
-    location, possibly by a different extractor. Its only required key is:
-    "url" - the next URL to extract.
-    The key "ie_key" can be set to the class name (minus the trailing "IE",
-    e.g. "Youtube") if the extractor class is known in advance.
-    Additionally, the dictionary may have any properties of the resolved entity
-    known in advance, for example "title" if the title of the referred video is
-    known ahead of time.
-
-
-    _type "url_transparent" entities have the same specification as "url", but
-    indicate that the given additional information is more precise than the one
-    associated with the resolved URL.
-    This is useful when a site employs a video service that hosts the video and
-    its technical metadata, but that video service does not embed a useful
-    title, description etc.
-
-
-    Subclasses of this one should re-define the _real_initialize() and
-    _real_extract() methods and define a _VALID_URL regexp.
-    Probably, they should also be added to the list of extractors.
-
-    _GEO_BYPASS attribute may be set to False in order to disable
-    geo restriction bypass mechanisms for a particular extractor.
-    Though it won't disable explicit geo restriction bypass based on
-    country code provided with geo_bypass_country.
-
-    _GEO_COUNTRIES attribute may contain a list of presumably geo unrestricted
-    countries for this extractor. One of these countries will be used by
-    geo restriction bypass mechanism right away in order to bypass
-    geo restriction, of course, if the mechanism is not disabled.
-
-    _GEO_IP_BLOCKS attribute may contain a list of presumably geo unrestricted
-    IP blocks in CIDR notation for this extractor. One of these IP blocks
-    will be used by geo restriction bypass mechanism similarly
-    to _GEO_COUNTRIES.
-
-    Finally, the _WORKING attribute should be set to False for broken IEs
-    in order to warn the users and skip the tests.
-    """
-
-    _ready = False
-    _downloader = None
-    _x_forwarded_for_ip = None
-    _GEO_BYPASS = True
-    _GEO_COUNTRIES = None
-    _GEO_IP_BLOCKS = None
-    _WORKING = True
-
-    def __init__(self, downloader=None):
-        """Constructor. Receives an optional downloader."""
-        self._ready = False
-        self._x_forwarded_for_ip = None
-        self.set_downloader(downloader)
-
-    @classmethod
-    def suitable(cls, url):
-        """Receives a URL and returns True if suitable for this IE."""
-
-        # This does not use has/getattr intentionally - we want to know whether
-        # we have cached the regexp for *this* class, whereas getattr would also
-        # match the superclass
-        if '_VALID_URL_RE' not in cls.__dict__:
-            cls._VALID_URL_RE = re.compile(cls._VALID_URL)
-        return cls._VALID_URL_RE.match(url) is not None
-
-    @classmethod
-    def _match_id(cls, url):
-        if '_VALID_URL_RE' not in cls.__dict__:
-            cls._VALID_URL_RE = re.compile(cls._VALID_URL)
-        m = cls._VALID_URL_RE.match(url)
-        assert m
-        return compat_str(m.group('id'))
-
-    @classmethod
-    def working(cls):
-        """Getter method for _WORKING."""
-        return cls._WORKING
-
-    def initialize(self):
-        """Initializes an instance (authentication, etc)."""
-        self._initialize_geo_bypass({
-            'countries': self._GEO_COUNTRIES,
-            'ip_blocks': self._GEO_IP_BLOCKS,
-        })
-        if not self._ready:
-            self._real_initialize()
-            self._ready = True
-
-    def _initialize_geo_bypass(self, geo_bypass_context):
-        """
-        Initialize geo restriction bypass mechanism.
-
-        This method is used to initialize geo bypass mechanism based on faking
-        X-Forwarded-For HTTP header. A random country from provided country list
-        is selected and a random IP belonging to this country is generated. This
-        IP will be passed as X-Forwarded-For HTTP header in all subsequent
-        HTTP requests.
-
-        This method will be used for initial geo bypass mechanism initialization
-        during the instance initialization with _GEO_COUNTRIES and
-        _GEO_IP_BLOCKS.
-
-        You may also manually call it from extractor's code if geo bypass
-        information is not available beforehand (e.g. obtained during
-        extraction) or due to some other reason. In this case you should pass
-        this information in geo bypass context passed as first argument. It may
-        contain following fields:
-
-        countries:  List of geo unrestricted countries (similar
-                    to _GEO_COUNTRIES)
-        ip_blocks:  List of geo unrestricted IP blocks in CIDR notation
-                    (similar to _GEO_IP_BLOCKS)
-
-        """
-        if not self._x_forwarded_for_ip:
-
-            # Geo bypass mechanism is explicitly disabled by user
-            if not self._downloader.params.get('geo_bypass', True):
-                return
-
-            if not geo_bypass_context:
-                geo_bypass_context = {}
-
-            # Backward compatibility: previously _initialize_geo_bypass
-            # expected a list of countries, some 3rd party code may still use
-            # it this way
-            if isinstance(geo_bypass_context, (list, tuple)):
-                geo_bypass_context = {
-                    'countries': geo_bypass_context,
-                }
-
-            # The whole point of geo bypass mechanism is to fake IP
-            # as X-Forwarded-For HTTP header based on some IP block or
-            # country code.
-
-            # Path 1: bypassing based on IP block in CIDR notation
-
-            # Explicit IP block specified by user, use it right away
-            # regardless of whether extractor is geo bypassable or not
-            ip_block = self._downloader.params.get('geo_bypass_ip_block', None)
-
-            # Otherwise use random IP block from geo bypass context but only
-            # if extractor is known as geo bypassable
-            if not ip_block:
-                ip_blocks = geo_bypass_context.get('ip_blocks')
-                if self._GEO_BYPASS and ip_blocks:
-                    ip_block = random.choice(ip_blocks)
-
-            if ip_block:
-                self._x_forwarded_for_ip = GeoUtils.random_ipv4(ip_block)
-                if self._downloader.params.get('verbose', False):
-                    self._downloader.to_screen(
-                        '[debug] Using fake IP %s as X-Forwarded-For.'
-                        % self._x_forwarded_for_ip)
-                return
-
-            # Path 2: bypassing based on country code
-
-            # Explicit country code specified by user, use it right away
-            # regardless of whether extractor is geo bypassable or not
-            country = self._downloader.params.get('geo_bypass_country', None)
-
-            # Otherwise use random country code from geo bypass context but
-            # only if extractor is known as geo bypassable
-            if not country:
-                countries = geo_bypass_context.get('countries')
-                if self._GEO_BYPASS and countries:
-                    country = random.choice(countries)
-
-            if country:
-                self._x_forwarded_for_ip = GeoUtils.random_ipv4(country)
-                if self._downloader.params.get('verbose', False):
-                    self._downloader.to_screen(
-                        '[debug] Using fake IP %s (%s) as X-Forwarded-For.'
-                        % (self._x_forwarded_for_ip, country.upper()))
-
-    def extract(self, url):
-        """Extracts URL information and returns it in list of dicts."""
-        try:
-            for _ in range(2):
-                try:
-                    self.initialize()
-                    ie_result = self._real_extract(url)
-                    if self._x_forwarded_for_ip:
-                        ie_result['__x_forwarded_for_ip'] = self._x_forwarded_for_ip
-                    return ie_result
-                except GeoRestrictedError as e:
-                    if self.__maybe_fake_ip_and_retry(e.countries):
-                        continue
-                    raise
-        except ExtractorError:
-            raise
-        except compat_http_client.IncompleteRead as e:
-            raise ExtractorError('A network error has occurred.', cause=e, expected=True)
-        except (KeyError, StopIteration) as e:
-            raise ExtractorError('An extractor error has occurred.', cause=e)
-
-    def __maybe_fake_ip_and_retry(self, countries):
-        if (not self._downloader.params.get('geo_bypass_country', None) and
-                self._GEO_BYPASS and
-                self._downloader.params.get('geo_bypass', True) and
-                not self._x_forwarded_for_ip and
-                countries):
-            country_code = random.choice(countries)
-            self._x_forwarded_for_ip = GeoUtils.random_ipv4(country_code)
-            if self._x_forwarded_for_ip:
-                self.report_warning(
-                    'Video is geo restricted. Retrying extraction with fake IP %s (%s) as X-Forwarded-For.'
-                    % (self._x_forwarded_for_ip, country_code.upper()))
-                return True
-        return False
-
-    def set_downloader(self, downloader):
-        """Sets the downloader for this IE."""
-        self._downloader = downloader
-
-    def _real_initialize(self):
-        """Real initialization process. Redefine in subclasses."""
-        pass
-
-    def _real_extract(self, url):
-        """Real extraction process. Redefine in subclasses."""
-        pass
-
-    @classmethod
-    def ie_key(cls):
-        """A string for getting the InfoExtractor with get_info_extractor"""
-        return compat_str(cls.__name__[:-2])
-
-    @property
-    def IE_NAME(self):
-        return compat_str(type(self).__name__[:-2])
-
-    @staticmethod
-    def __can_accept_status_code(err, expected_status):
-        assert isinstance(err, compat_urllib_error.HTTPError)
-        if expected_status is None:
-            return False
-        if isinstance(expected_status, compat_integer_types):
-            return err.code == expected_status
-        elif isinstance(expected_status, (list, tuple)):
-            return err.code in expected_status
-        elif callable(expected_status):
-            return expected_status(err.code) is True
-        else:
-            assert False
-
-    def _request_webpage(self, url_or_request, video_id, note=None, errnote=None, fatal=True, data=None, headers={}, query={}, expected_status=None):
-        """
-        Return the response handle.
-
-        See _download_webpage docstring for arguments specification.
-        """
-        if note is None:
-            self.report_download_webpage(video_id)
-        elif note is not False:
-            if video_id is None:
-                self.to_screen('%s' % (note,))
-            else:
-                self.to_screen('%s: %s' % (video_id, note))
-
-        # Some sites check X-Forwarded-For HTTP header in order to figure out
-        # the origin of the client behind proxy. This allows bypassing geo
-        # restriction by faking this header's value to IP that belongs to some
-        # geo unrestricted country. We will do so once we encounter any
-        # geo restriction error.
-        if self._x_forwarded_for_ip:
-            if 'X-Forwarded-For' not in headers:
-                headers['X-Forwarded-For'] = self._x_forwarded_for_ip
-
-        if isinstance(url_or_request, compat_urllib_request.Request):
-            url_or_request = update_Request(
-                url_or_request, data=data, headers=headers, query=query)
-        else:
-            if query:
-                url_or_request = update_url_query(url_or_request, query)
-            if data is not None or headers:
-                url_or_request = sanitized_Request(url_or_request, data, headers)
-        try:
-            return self._downloader.urlopen(url_or_request)
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            if isinstance(err, compat_urllib_error.HTTPError):
-                if self.__can_accept_status_code(err, expected_status):
-                    return err.fp
-
-            if errnote is False:
-                return False
-            if errnote is None:
-                errnote = 'Unable to download webpage'
-
-            errmsg = '%s: %s' % (errnote, error_to_compat_str(err))
-            if fatal:
-                raise ExtractorError(errmsg, sys.exc_info()[2], cause=err)
-            else:
-                self._downloader.report_warning(errmsg)
-                return False
-
-    def _download_webpage_handle(self, url_or_request, video_id, note=None, errnote=None, fatal=True, encoding=None, data=None, headers={}, query={}, expected_status=None):
-        """
-        Return a tuple (page content as string, URL handle).
-
-        See _download_webpage docstring for arguments specification.
-        """
-        # Strip hashes from the URL (#1038)
-        if isinstance(url_or_request, (compat_str, str)):
-            url_or_request = url_or_request.partition('#')[0]
-
-        urlh = self._request_webpage(url_or_request, video_id, note, errnote, fatal, data=data, headers=headers, query=query, expected_status=expected_status)
-        if urlh is False:
-            assert not fatal
-            return False
-        content = self._webpage_read_content(urlh, url_or_request, video_id, note, errnote, fatal, encoding=encoding)
-        return (content, urlh)
-
-    @staticmethod
-    def _guess_encoding_from_content(content_type, webpage_bytes):
-        m = re.match(r'[a-zA-Z0-9_.-]+/[a-zA-Z0-9_.-]+\s*;\s*charset=(.+)', content_type)
-        if m:
-            encoding = m.group(1)
-        else:
-            m = re.search(br'<meta[^>]+charset=[\'"]?([^\'")]+)[ /\'">]',
-                          webpage_bytes[:1024])
-            if m:
-                encoding = m.group(1).decode('ascii')
-            elif webpage_bytes.startswith(b'\xff\xfe'):
-                encoding = 'utf-16'
-            else:
-                encoding = 'utf-8'
-
-        return encoding
-
-    def __check_blocked(self, content):
-        first_block = content[:512]
-        if ('<title>Access to this site is blocked</title>' in content and
-                'Websense' in first_block):
-            msg = 'Access to this webpage has been blocked by Websense filtering software in your network.'
-            blocked_iframe = self._html_search_regex(
-                r'<iframe src="([^"]+)"', content,
-                'Websense information URL', default=None)
-            if blocked_iframe:
-                msg += ' Visit %s for more details' % blocked_iframe
-            raise ExtractorError(msg, expected=True)
-        if '<title>The URL you requested has been blocked</title>' in first_block:
-            msg = (
-                'Access to this webpage has been blocked by Indian censorship. '
-                'Use a VPN or proxy server (with --proxy) to route around it.')
-            block_msg = self._html_search_regex(
-                r'</h1><p>(.*?)</p>',
-                content, 'block message', default=None)
-            if block_msg:
-                msg += ' (Message: "%s")' % block_msg.replace('\n', ' ')
-            raise ExtractorError(msg, expected=True)
-        if ('<title>TTK :: Доступ к ресурсу ограничен</title>' in content and
-                'blocklist.rkn.gov.ru' in content):
-            raise ExtractorError(
-                'Access to this webpage has been blocked by decision of the Russian government. '
-                'Visit http://blocklist.rkn.gov.ru/ for a block reason.',
-                expected=True)
-
-    def _webpage_read_content(self, urlh, url_or_request, video_id, note=None, errnote=None, fatal=True, prefix=None, encoding=None):
-        content_type = urlh.headers.get('Content-Type', '')
-        webpage_bytes = urlh.read()
-        if prefix is not None:
-            webpage_bytes = prefix + webpage_bytes
-        if not encoding:
-            encoding = self._guess_encoding_from_content(content_type, webpage_bytes)
-        if self._downloader.params.get('dump_intermediate_pages', False):
-            self.to_screen('Dumping request to ' + urlh.geturl())
-            dump = base64.b64encode(webpage_bytes).decode('ascii')
-            self._downloader.to_screen(dump)
-        if self._downloader.params.get('write_pages', False):
-            basen = '%s_%s' % (video_id, urlh.geturl())
-            if len(basen) > 240:
-                h = '___' + hashlib.md5(basen.encode('utf-8')).hexdigest()
-                basen = basen[:240 - len(h)] + h
-            raw_filename = basen + '.dump'
-            filename = sanitize_filename(raw_filename, restricted=True)
-            self.to_screen('Saving request to ' + filename)
-            # Working around MAX_PATH limitation on Windows (see
-            # http://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx)
-            if compat_os_name == 'nt':
-                absfilepath = os.path.abspath(filename)
-                if len(absfilepath) > 259:
-                    filename = '\\\\?\\' + absfilepath
-            with open(filename, 'wb') as outf:
-                outf.write(webpage_bytes)
-
-        try:
-            content = webpage_bytes.decode(encoding, 'replace')
-        except LookupError:
-            content = webpage_bytes.decode('utf-8', 'replace')
-
-        self.__check_blocked(content)
-
-        return content
-
-    def _download_webpage(
-            self, url_or_request, video_id, note=None, errnote=None,
-            fatal=True, tries=1, timeout=5, encoding=None, data=None,
-            headers={}, query={}, expected_status=None):
-        """
-        Return the data of the page as a string.
-
-        Arguments:
-        url_or_request -- plain text URL as a string or
-            a compat_urllib_request.Requestobject
-        video_id -- Video/playlist/item identifier (string)
-
-        Keyword arguments:
-        note -- note printed before downloading (string)
-        errnote -- note printed in case of an error (string)
-        fatal -- flag denoting whether error should be considered fatal,
-            i.e. whether it should cause ExtractionError to be raised,
-            otherwise a warning will be reported and extraction continued
-        tries -- number of tries
-        timeout -- sleep interval between tries
-        encoding -- encoding for a page content decoding, guessed automatically
-            when not explicitly specified
-        data -- POST data (bytes)
-        headers -- HTTP headers (dict)
-        query -- URL query (dict)
-        expected_status -- allows to accept failed HTTP requests (non 2xx
-            status code) by explicitly specifying a set of accepted status
-            codes. Can be any of the following entities:
-                - an integer type specifying an exact failed status code to
-                  accept
-                - a list or a tuple of integer types specifying a list of
-                  failed status codes to accept
-                - a callable accepting an actual failed status code and
-                  returning True if it should be accepted
-            Note that this argument does not affect success status codes (2xx)
-            which are always accepted.
-        """
-
-        success = False
-        try_count = 0
-        while success is False:
-            try:
-                res = self._download_webpage_handle(
-                    url_or_request, video_id, note, errnote, fatal,
-                    encoding=encoding, data=data, headers=headers, query=query,
-                    expected_status=expected_status)
-                success = True
-            except compat_http_client.IncompleteRead as e:
-                try_count += 1
-                if try_count >= tries:
-                    raise e
-                self._sleep(timeout, video_id)
-        if res is False:
-            return res
-        else:
-            content, _ = res
-            return content
-
-    def _download_xml_handle(
-            self, url_or_request, video_id, note='Downloading XML',
-            errnote='Unable to download XML', transform_source=None,
-            fatal=True, encoding=None, data=None, headers={}, query={},
-            expected_status=None):
-        """
-        Return a tuple (xml as an xml.etree.ElementTree.Element, URL handle).
-
-        See _download_webpage docstring for arguments specification.
-        """
-        res = self._download_webpage_handle(
-            url_or_request, video_id, note, errnote, fatal=fatal,
-            encoding=encoding, data=data, headers=headers, query=query,
-            expected_status=expected_status)
-        if res is False:
-            return res
-        xml_string, urlh = res
-        return self._parse_xml(
-            xml_string, video_id, transform_source=transform_source,
-            fatal=fatal), urlh
-
-    def _download_xml(
-            self, url_or_request, video_id,
-            note='Downloading XML', errnote='Unable to download XML',
-            transform_source=None, fatal=True, encoding=None,
-            data=None, headers={}, query={}, expected_status=None):
-        """
-        Return the xml as an xml.etree.ElementTree.Element.
-
-        See _download_webpage docstring for arguments specification.
-        """
-        res = self._download_xml_handle(
-            url_or_request, video_id, note=note, errnote=errnote,
-            transform_source=transform_source, fatal=fatal, encoding=encoding,
-            data=data, headers=headers, query=query,
-            expected_status=expected_status)
-        return res if res is False else res[0]
-
-    def _parse_xml(self, xml_string, video_id, transform_source=None, fatal=True):
-        if transform_source:
-            xml_string = transform_source(xml_string)
-        try:
-            return compat_etree_fromstring(xml_string.encode('utf-8'))
-        except compat_xml_parse_error as ve:
-            errmsg = '%s: Failed to parse XML ' % video_id
-            if fatal:
-                raise ExtractorError(errmsg, cause=ve)
-            else:
-                self.report_warning(errmsg + str(ve))
-
-    def _download_json_handle(
-            self, url_or_request, video_id, note='Downloading JSON metadata',
-            errnote='Unable to download JSON metadata', transform_source=None,
-            fatal=True, encoding=None, data=None, headers={}, query={},
-            expected_status=None):
-        """
-        Return a tuple (JSON object, URL handle).
-
-        See _download_webpage docstring for arguments specification.
-        """
-        res = self._download_webpage_handle(
-            url_or_request, video_id, note, errnote, fatal=fatal,
-            encoding=encoding, data=data, headers=headers, query=query,
-            expected_status=expected_status)
-        if res is False:
-            return res
-        json_string, urlh = res
-        return self._parse_json(
-            json_string, video_id, transform_source=transform_source,
-            fatal=fatal), urlh
-
-    def _download_json(
-            self, url_or_request, video_id, note='Downloading JSON metadata',
-            errnote='Unable to download JSON metadata', transform_source=None,
-            fatal=True, encoding=None, data=None, headers={}, query={},
-            expected_status=None):
-        """
-        Return the JSON object as a dict.
-
-        See _download_webpage docstring for arguments specification.
-        """
-        res = self._download_json_handle(
-            url_or_request, video_id, note=note, errnote=errnote,
-            transform_source=transform_source, fatal=fatal, encoding=encoding,
-            data=data, headers=headers, query=query,
-            expected_status=expected_status)
-        return res if res is False else res[0]
-
-    def _parse_json(self, json_string, video_id, transform_source=None, fatal=True):
-        if transform_source:
-            json_string = transform_source(json_string)
-        try:
-            return json.loads(json_string)
-        except ValueError as ve:
-            errmsg = '%s: Failed to parse JSON ' % video_id
-            if fatal:
-                raise ExtractorError(errmsg, cause=ve)
-            else:
-                self.report_warning(errmsg + str(ve))
-
-    def report_warning(self, msg, video_id=None):
-        idstr = '' if video_id is None else '%s: ' % video_id
-        self._downloader.report_warning(
-            '[%s] %s%s' % (self.IE_NAME, idstr, msg))
-
-    def to_screen(self, msg):
-        """Print msg to screen, prefixing it with '[ie_name]'"""
-        self._downloader.to_screen('[%s] %s' % (self.IE_NAME, msg))
-
-    def report_extraction(self, id_or_name):
-        """Report information extraction."""
-        self.to_screen('%s: Extracting information' % id_or_name)
-
-    def report_download_webpage(self, video_id):
-        """Report webpage download."""
-        self.to_screen('%s: Downloading webpage' % video_id)
-
-    def report_age_confirmation(self):
-        """Report attempt to confirm age."""
-        self.to_screen('Confirming age')
-
-    def report_login(self):
-        """Report attempt to log in."""
-        self.to_screen('Logging in')
-
-    @staticmethod
-    def raise_login_required(msg='This video is only available for registered users'):
-        raise ExtractorError(
-            '%s. Use --username and --password or --netrc to provide account credentials.' % msg,
-            expected=True)
-
-    @staticmethod
-    def raise_geo_restricted(msg='This video is not available from your location due to geo restriction', countries=None):
-        raise GeoRestrictedError(msg, countries=countries)
-
-    # Methods for following #608
-    @staticmethod
-    def url_result(url, ie=None, video_id=None, video_title=None):
-        """Returns a URL that points to a page that should be processed"""
-        # TODO: ie should be the class used for getting the info
-        video_info = {'_type': 'url',
-                      'url': url,
-                      'ie_key': ie}
-        if video_id is not None:
-            video_info['id'] = video_id
-        if video_title is not None:
-            video_info['title'] = video_title
-        return video_info
-
-    def playlist_from_matches(self, matches, playlist_id=None, playlist_title=None, getter=None, ie=None):
-        urls = orderedSet(
-            self.url_result(self._proto_relative_url(getter(m) if getter else m), ie)
-            for m in matches)
-        return self.playlist_result(
-            urls, playlist_id=playlist_id, playlist_title=playlist_title)
-
-    @staticmethod
-    def playlist_result(entries, playlist_id=None, playlist_title=None, playlist_description=None):
-        """Returns a playlist"""
-        video_info = {'_type': 'playlist',
-                      'entries': entries}
-        if playlist_id:
-            video_info['id'] = playlist_id
-        if playlist_title:
-            video_info['title'] = playlist_title
-        if playlist_description:
-            video_info['description'] = playlist_description
-        return video_info
-
-    def _search_regex(self, pattern, string, name, default=NO_DEFAULT, fatal=True, flags=0, group=None):
-        """
-        Perform a regex search on the given string, using a single or a list of
-        patterns returning the first matching group.
-        In case of failure return a default value or raise a WARNING or a
-        RegexNotFoundError, depending on fatal, specifying the field name.
-        """
-        if isinstance(pattern, (str, compat_str, compiled_regex_type)):
-            mobj = re.search(pattern, string, flags)
-        else:
-            for p in pattern:
-                mobj = re.search(p, string, flags)
-                if mobj:
-                    break
-
-        if not self._downloader.params.get('no_color') and compat_os_name != 'nt' and sys.stderr.isatty():
-            _name = '\033[0;34m%s\033[0m' % name
-        else:
-            _name = name
-
-        if mobj:
-            if group is None:
-                # return the first matching group
-                return next(g for g in mobj.groups() if g is not None)
-            else:
-                return mobj.group(group)
-        elif default is not NO_DEFAULT:
-            return default
-        elif fatal:
-            raise RegexNotFoundError('Unable to extract %s' % _name)
-        else:
-            self._downloader.report_warning('unable to extract %s' % _name + bug_reports_message())
-            return None
-
-    def _html_search_regex(self, pattern, string, name, default=NO_DEFAULT, fatal=True, flags=0, group=None):
-        """
-        Like _search_regex, but strips HTML tags and unescapes entities.
-        """
-        res = self._search_regex(pattern, string, name, default, fatal, flags, group)
-        if res:
-            return clean_html(res).strip()
-        else:
-            return res
-
-    def _get_netrc_login_info(self, netrc_machine=None):
-        username = None
-        password = None
-        netrc_machine = netrc_machine or self._NETRC_MACHINE
-
-        if self._downloader.params.get('usenetrc', False):
-            try:
-                info = netrc.netrc().authenticators(netrc_machine)
-                if info is not None:
-                    username = info[0]
-                    password = info[2]
-                else:
-                    raise netrc.NetrcParseError(
-                        'No authenticators for %s' % netrc_machine)
-            except (IOError, netrc.NetrcParseError) as err:
-                self._downloader.report_warning(
-                    'parsing .netrc: %s' % error_to_compat_str(err))
-
-        return username, password
-
-    def _get_login_info(self, username_option='username', password_option='password', netrc_machine=None):
-        """
-        Get the login info as (username, password)
-        First look for the manually specified credentials using username_option
-        and password_option as keys in params dictionary. If no such credentials
-        available look in the netrc file using the netrc_machine or _NETRC_MACHINE
-        value.
-        If there's no info available, return (None, None)
-        """
-        if self._downloader is None:
-            return (None, None)
-
-        downloader_params = self._downloader.params
-
-        # Attempt to use provided username and password or .netrc data
-        if downloader_params.get(username_option) is not None:
-            username = downloader_params[username_option]
-            password = downloader_params[password_option]
-        else:
-            username, password = self._get_netrc_login_info(netrc_machine)
-
-        return username, password
-
-    def _get_tfa_info(self, note='two-factor verification code'):
-        """
-        Get the two-factor authentication info
-        TODO - asking the user will be required for sms/phone verify
-        currently just uses the command line option
-        If there's no info available, return None
-        """
-        if self._downloader is None:
-            return None
-        downloader_params = self._downloader.params
-
-        if downloader_params.get('twofactor') is not None:
-            return downloader_params['twofactor']
-
-        return compat_getpass('Type %s and press [Return]: ' % note)
-
-    # Helper functions for extracting OpenGraph info
-    @staticmethod
-    def _og_regexes(prop):
-        content_re = r'content=(?:"([^"]+?)"|\'([^\']+?)\'|\s*([^\s"\'=<>`]+?))'
-        property_re = (r'(?:name|property)=(?:\'og:%(prop)s\'|"og:%(prop)s"|\s*og:%(prop)s\b)'
-                       % {'prop': re.escape(prop)})
-        template = r'<meta[^>]+?%s[^>]+?%s'
-        return [
-            template % (property_re, content_re),
-            template % (content_re, property_re),
-        ]
-
-    @staticmethod
-    def _meta_regex(prop):
-        return r'''(?isx)<meta
-                    (?=[^>]+(?:itemprop|name|property|id|http-equiv)=(["\']?)%s\1)
-                    [^>]+?content=(["\'])(?P<content>.*?)\2''' % re.escape(prop)
-
-    def _og_search_property(self, prop, html, name=None, **kargs):
-        if not isinstance(prop, (list, tuple)):
-            prop = [prop]
-        if name is None:
-            name = 'OpenGraph %s' % prop[0]
-        og_regexes = []
-        for p in prop:
-            og_regexes.extend(self._og_regexes(p))
-        escaped = self._search_regex(og_regexes, html, name, flags=re.DOTALL, **kargs)
-        if escaped is None:
-            return None
-        return unescapeHTML(escaped)
-
-    def _og_search_thumbnail(self, html, **kargs):
-        return self._og_search_property('image', html, 'thumbnail URL', fatal=False, **kargs)
-
-    def _og_search_description(self, html, **kargs):
-        return self._og_search_property('description', html, fatal=False, **kargs)
-
-    def _og_search_title(self, html, **kargs):
-        return self._og_search_property('title', html, **kargs)
-
-    def _og_search_video_url(self, html, name='video url', secure=True, **kargs):
-        regexes = self._og_regexes('video') + self._og_regexes('video:url')
-        if secure:
-            regexes = self._og_regexes('video:secure_url') + regexes
-        return self._html_search_regex(regexes, html, name, **kargs)
-
-    def _og_search_url(self, html, **kargs):
-        return self._og_search_property('url', html, **kargs)
-
-    def _html_search_meta(self, name, html, display_name=None, fatal=False, **kwargs):
-        if not isinstance(name, (list, tuple)):
-            name = [name]
-        if display_name is None:
-            display_name = name[0]
-        return self._html_search_regex(
-            [self._meta_regex(n) for n in name],
-            html, display_name, fatal=fatal, group='content', **kwargs)
-
-    def _dc_search_uploader(self, html):
-        return self._html_search_meta('dc.creator', html, 'uploader')
-
-    def _rta_search(self, html):
-        # See http://www.rtalabel.org/index.php?content=howtofaq#single
-        if re.search(r'(?ix)<meta\s+name="rating"\s+'
-                     r'     content="RTA-5042-1996-1400-1577-RTA"',
-                     html):
-            return 18
-        return 0
-
-    def _media_rating_search(self, html):
-        # See http://www.tjg-designs.com/WP/metadata-code-examples-adding-metadata-to-your-web-pages/
-        rating = self._html_search_meta('rating', html)
-
-        if not rating:
-            return None
-
-        RATING_TABLE = {
-            'safe for kids': 0,
-            'general': 8,
-            '14 years': 14,
-            'mature': 17,
-            'restricted': 19,
-        }
-        return RATING_TABLE.get(rating.lower())
-
-    def _family_friendly_search(self, html):
-        # See http://schema.org/VideoObject
-        family_friendly = self._html_search_meta(
-            'isFamilyFriendly', html, default=None)
-
-        if not family_friendly:
-            return None
-
-        RATING_TABLE = {
-            '1': 0,
-            'true': 0,
-            '0': 18,
-            'false': 18,
-        }
-        return RATING_TABLE.get(family_friendly.lower())
-
-    def _twitter_search_player(self, html):
-        return self._html_search_meta('twitter:player', html,
-                                      'twitter card player')
-
-    def _search_json_ld(self, html, video_id, expected_type=None, **kwargs):
-        json_ld = self._search_regex(
-            JSON_LD_RE, html, 'JSON-LD', group='json_ld', **kwargs)
-        default = kwargs.get('default', NO_DEFAULT)
-        if not json_ld:
-            return default if default is not NO_DEFAULT else {}
-        # JSON-LD may be malformed and thus `fatal` should be respected.
-        # At the same time `default` may be passed that assumes `fatal=False`
-        # for _search_regex. Let's simulate the same behavior here as well.
-        fatal = kwargs.get('fatal', True) if default == NO_DEFAULT else False
-        return self._json_ld(json_ld, video_id, fatal=fatal, expected_type=expected_type)
-
-    def _json_ld(self, json_ld, video_id, fatal=True, expected_type=None):
-        if isinstance(json_ld, compat_str):
-            json_ld = self._parse_json(json_ld, video_id, fatal=fatal)
-        if not json_ld:
-            return {}
-        info = {}
-        if not isinstance(json_ld, (list, tuple, dict)):
-            return info
-        if isinstance(json_ld, dict):
-            json_ld = [json_ld]
-
-        INTERACTION_TYPE_MAP = {
-            'CommentAction': 'comment',
-            'AgreeAction': 'like',
-            'DisagreeAction': 'dislike',
-            'LikeAction': 'like',
-            'DislikeAction': 'dislike',
-            'ListenAction': 'view',
-            'WatchAction': 'view',
-            'ViewAction': 'view',
-        }
-
-        def extract_interaction_statistic(e):
-            interaction_statistic = e.get('interactionStatistic')
-            if not isinstance(interaction_statistic, list):
-                return
-            for is_e in interaction_statistic:
-                if not isinstance(is_e, dict):
-                    continue
-                if is_e.get('@type') != 'InteractionCounter':
-                    continue
-                interaction_type = is_e.get('interactionType')
-                if not isinstance(interaction_type, compat_str):
-                    continue
-                interaction_count = int_or_none(is_e.get('userInteractionCount'))
-                if interaction_count is None:
-                    continue
-                count_kind = INTERACTION_TYPE_MAP.get(interaction_type.split('/')[-1])
-                if not count_kind:
-                    continue
-                count_key = '%s_count' % count_kind
-                if info.get(count_key) is not None:
-                    continue
-                info[count_key] = interaction_count
-
-        def extract_video_object(e):
-            assert e['@type'] == 'VideoObject'
-            info.update({
-                'url': e.get('contentUrl'),
-                'title': unescapeHTML(e.get('name')),
-                'description': unescapeHTML(e.get('description')),
-                'thumbnail': e.get('thumbnailUrl') or e.get('thumbnailURL'),
-                'duration': parse_duration(e.get('duration')),
-                'timestamp': unified_timestamp(e.get('uploadDate')),
-                'filesize': float_or_none(e.get('contentSize')),
-                'tbr': int_or_none(e.get('bitrate')),
-                'width': int_or_none(e.get('width')),
-                'height': int_or_none(e.get('height')),
-                'view_count': int_or_none(e.get('interactionCount')),
-            })
-            extract_interaction_statistic(e)
-
-        for e in json_ld:
-            if isinstance(e.get('@context'), compat_str) and re.match(r'^https?://schema.org/?$', e.get('@context')):
-                item_type = e.get('@type')
-                if expected_type is not None and expected_type != item_type:
-                    return info
-                if item_type in ('TVEpisode', 'Episode'):
-                    info.update({
-                        'episode': unescapeHTML(e.get('name')),
-                        'episode_number': int_or_none(e.get('episodeNumber')),
-                        'description': unescapeHTML(e.get('description')),
-                    })
-                    part_of_season = e.get('partOfSeason')
-                    if isinstance(part_of_season, dict) and part_of_season.get('@type') in ('TVSeason', 'Season', 'CreativeWorkSeason'):
-                        info['season_number'] = int_or_none(part_of_season.get('seasonNumber'))
-                    part_of_series = e.get('partOfSeries') or e.get('partOfTVSeries')
-                    if isinstance(part_of_series, dict) and part_of_series.get('@type') in ('TVSeries', 'Series', 'CreativeWorkSeries'):
-                        info['series'] = unescapeHTML(part_of_series.get('name'))
-                elif item_type in ('Article', 'NewsArticle'):
-                    info.update({
-                        'timestamp': parse_iso8601(e.get('datePublished')),
-                        'title': unescapeHTML(e.get('headline')),
-                        'description': unescapeHTML(e.get('articleBody')),
-                    })
-                elif item_type == 'VideoObject':
-                    extract_video_object(e)
-                    continue
-                video = e.get('video')
-                if isinstance(video, dict) and video.get('@type') == 'VideoObject':
-                    extract_video_object(video)
-                break
-        return dict((k, v) for k, v in info.items() if v is not None)
-
-    @staticmethod
-    def _hidden_inputs(html):
-        html = re.sub(r'<!--(?:(?!<!--).)*-->', '', html)
-        hidden_inputs = {}
-        for input in re.findall(r'(?i)(<input[^>]+>)', html):
-            attrs = extract_attributes(input)
-            if not input:
-                continue
-            if attrs.get('type') not in ('hidden', 'submit'):
-                continue
-            name = attrs.get('name') or attrs.get('id')
-            value = attrs.get('value')
-            if name and value is not None:
-                hidden_inputs[name] = value
-        return hidden_inputs
-
-    def _form_hidden_inputs(self, form_id, html):
-        form = self._search_regex(
-            r'(?is)<form[^>]+?id=(["\'])%s\1[^>]*>(?P<form>.+?)</form>' % form_id,
-            html, '%s form' % form_id, group='form')
-        return self._hidden_inputs(form)
-
-    def _sort_formats(self, formats, field_preference=None):
-        if not formats:
-            raise ExtractorError('No video formats found')
-
-        for f in formats:
-            # Automatically determine tbr when missing based on abr and vbr (improves
-            # formats sorting in some cases)
-            if 'tbr' not in f and f.get('abr') is not None and f.get('vbr') is not None:
-                f['tbr'] = f['abr'] + f['vbr']
-
-        def _formats_key(f):
-            # TODO remove the following workaround
-            from ..utils import determine_ext
-            if not f.get('ext') and 'url' in f:
-                f['ext'] = determine_ext(f['url'])
-
-            if isinstance(field_preference, (list, tuple)):
-                return tuple(
-                    f.get(field)
-                    if f.get(field) is not None
-                    else ('' if field == 'format_id' else -1)
-                    for field in field_preference)
-
-            preference = f.get('preference')
-            if preference is None:
-                preference = 0
-                if f.get('ext') in ['f4f', 'f4m']:  # Not yet supported
-                    preference -= 0.5
-
-            protocol = f.get('protocol') or determine_protocol(f)
-            proto_preference = 0 if protocol in ['http', 'https'] else (-0.5 if protocol == 'rtsp' else -0.1)
-
-            if f.get('vcodec') == 'none':  # audio only
-                preference -= 50
-                if self._downloader.params.get('prefer_free_formats'):
-                    ORDER = ['aac', 'mp3', 'm4a', 'webm', 'ogg', 'opus']
-                else:
-                    ORDER = ['webm', 'opus', 'ogg', 'mp3', 'aac', 'm4a']
-                ext_preference = 0
-                try:
-                    audio_ext_preference = ORDER.index(f['ext'])
-                except ValueError:
-                    audio_ext_preference = -1
-            else:
-                if f.get('acodec') == 'none':  # video only
-                    preference -= 40
-                if self._downloader.params.get('prefer_free_formats'):
-                    ORDER = ['flv', 'mp4', 'webm']
-                else:
-                    ORDER = ['webm', 'flv', 'mp4']
-                try:
-                    ext_preference = ORDER.index(f['ext'])
-                except ValueError:
-                    ext_preference = -1
-                audio_ext_preference = 0
-
-            return (
-                preference,
-                f.get('language_preference') if f.get('language_preference') is not None else -1,
-                f.get('quality') if f.get('quality') is not None else -1,
-                f.get('tbr') if f.get('tbr') is not None else -1,
-                f.get('filesize') if f.get('filesize') is not None else -1,
-                f.get('vbr') if f.get('vbr') is not None else -1,
-                f.get('height') if f.get('height') is not None else -1,
-                f.get('width') if f.get('width') is not None else -1,
-                proto_preference,
-                ext_preference,
-                f.get('abr') if f.get('abr') is not None else -1,
-                audio_ext_preference,
-                f.get('fps') if f.get('fps') is not None else -1,
-                f.get('filesize_approx') if f.get('filesize_approx') is not None else -1,
-                f.get('source_preference') if f.get('source_preference') is not None else -1,
-                f.get('format_id') if f.get('format_id') is not None else '',
-            )
-        formats.sort(key=_formats_key)
-
-    def _check_formats(self, formats, video_id):
-        if formats:
-            formats[:] = filter(
-                lambda f: self._is_valid_url(
-                    f['url'], video_id,
-                    item='%s video format' % f.get('format_id') if f.get('format_id') else 'video'),
-                formats)
-
-    @staticmethod
-    def _remove_duplicate_formats(formats):
-        format_urls = set()
-        unique_formats = []
-        for f in formats:
-            if f['url'] not in format_urls:
-                format_urls.add(f['url'])
-                unique_formats.append(f)
-        formats[:] = unique_formats
-
-    def _is_valid_url(self, url, video_id, item='video', headers={}):
-        url = self._proto_relative_url(url, scheme='http:')
-        # For now assume non HTTP(S) URLs always valid
-        if not (url.startswith('http://') or url.startswith('https://')):
-            return True
-        try:
-            self._request_webpage(url, video_id, 'Checking %s URL' % item, headers=headers)
-            return True
-        except ExtractorError as e:
-            if isinstance(e.cause, compat_urllib_error.URLError):
-                self.to_screen(
-                    '%s: %s URL is invalid, skipping' % (video_id, item))
-                return False
-            raise
-
-    def http_scheme(self):
-        """ Either "http:" or "https:", depending on the user's preferences """
-        return (
-            'http:'
-            if self._downloader.params.get('prefer_insecure', False)
-            else 'https:')
-
-    def _proto_relative_url(self, url, scheme=None):
-        if url is None:
-            return url
-        if url.startswith('//'):
-            if scheme is None:
-                scheme = self.http_scheme()
-            return scheme + url
-        else:
-            return url
-
-    def _sleep(self, timeout, video_id, msg_template=None):
-        if msg_template is None:
-            msg_template = '%(video_id)s: Waiting for %(timeout)s seconds'
-        msg = msg_template % {'video_id': video_id, 'timeout': timeout}
-        self.to_screen(msg)
-        time.sleep(timeout)
-
-    def _extract_f4m_formats(self, manifest_url, video_id, preference=None, f4m_id=None,
-                             transform_source=lambda s: fix_xml_ampersands(s).strip(),
-                             fatal=True, m3u8_id=None):
-        manifest = self._download_xml(
-            manifest_url, video_id, 'Downloading f4m manifest',
-            'Unable to download f4m manifest',
-            # Some manifests may be malformed, e.g. prosiebensat1 generated manifests
-            # (see https://github.com/rg3/youtube-dl/issues/6215#issuecomment-121704244)
-            transform_source=transform_source,
-            fatal=fatal)
-
-        if manifest is False:
-            return []
-
-        return self._parse_f4m_formats(
-            manifest, manifest_url, video_id, preference=preference, f4m_id=f4m_id,
-            transform_source=transform_source, fatal=fatal, m3u8_id=m3u8_id)
-
-    def _parse_f4m_formats(self, manifest, manifest_url, video_id, preference=None, f4m_id=None,
-                           transform_source=lambda s: fix_xml_ampersands(s).strip(),
-                           fatal=True, m3u8_id=None):
-        # currently youtube-dl cannot decode the playerVerificationChallenge as Akamai uses Adobe Alchemy
-        akamai_pv = manifest.find('{http://ns.adobe.com/f4m/1.0}pv-2.0')
-        if akamai_pv is not None and ';' in akamai_pv.text:
-            playerVerificationChallenge = akamai_pv.text.split(';')[0]
-            if playerVerificationChallenge.strip() != '':
-                return []
-
-        formats = []
-        manifest_version = '1.0'
-        media_nodes = manifest.findall('{http://ns.adobe.com/f4m/1.0}media')
-        if not media_nodes:
-            manifest_version = '2.0'
-            media_nodes = manifest.findall('{http://ns.adobe.com/f4m/2.0}media')
-        # Remove unsupported DRM protected media from final formats
-        # rendition (see https://github.com/rg3/youtube-dl/issues/8573).
-        media_nodes = remove_encrypted_media(media_nodes)
-        if not media_nodes:
-            return formats
-
-        manifest_base_url = get_base_url(manifest)
-
-        bootstrap_info = xpath_element(
-            manifest, ['{http://ns.adobe.com/f4m/1.0}bootstrapInfo', '{http://ns.adobe.com/f4m/2.0}bootstrapInfo'],
-            'bootstrap info', default=None)
-
-        vcodec = None
-        mime_type = xpath_text(
-            manifest, ['{http://ns.adobe.com/f4m/1.0}mimeType', '{http://ns.adobe.com/f4m/2.0}mimeType'],
-            'base URL', default=None)
-        if mime_type and mime_type.startswith('audio/'):
-            vcodec = 'none'
-
-        for i, media_el in enumerate(media_nodes):
-            tbr = int_or_none(media_el.attrib.get('bitrate'))
-            width = int_or_none(media_el.attrib.get('width'))
-            height = int_or_none(media_el.attrib.get('height'))
-            format_id = '-'.join(filter(None, [f4m_id, compat_str(i if tbr is None else tbr)]))
-            # If <bootstrapInfo> is present, the specified f4m is a
-            # stream-level manifest, and only set-level manifests may refer to
-            # external resources.  See section 11.4 and section 4 of F4M spec
-            if bootstrap_info is None:
-                media_url = None
-                # @href is introduced in 2.0, see section 11.6 of F4M spec
-                if manifest_version == '2.0':
-                    media_url = media_el.attrib.get('href')
-                if media_url is None:
-                    media_url = media_el.attrib.get('url')
-                if not media_url:
-                    continue
-                manifest_url = (
-                    media_url if media_url.startswith('http://') or media_url.startswith('https://')
-                    else ((manifest_base_url or '/'.join(manifest_url.split('/')[:-1])) + '/' + media_url))
-                # If media_url is itself a f4m manifest do the recursive extraction
-                # since bitrates in parent manifest (this one) and media_url manifest
-                # may differ leading to inability to resolve the format by requested
-                # bitrate in f4m downloader
-                ext = determine_ext(manifest_url)
-                if ext == 'f4m':
-                    f4m_formats = self._extract_f4m_formats(
-                        manifest_url, video_id, preference=preference, f4m_id=f4m_id,
-                        transform_source=transform_source, fatal=fatal)
-                    # Sometimes stream-level manifest contains single media entry that
-                    # does not contain any quality metadata (e.g. http://matchtv.ru/#live-player).
-                    # At the same time parent's media entry in set-level manifest may
-                    # contain it. We will copy it from parent in such cases.
-                    if len(f4m_formats) == 1:
-                        f = f4m_formats[0]
-                        f.update({
-                            'tbr': f.get('tbr') or tbr,
-                            'width': f.get('width') or width,
-                            'height': f.get('height') or height,
-                            'format_id': f.get('format_id') if not tbr else format_id,
-                            'vcodec': vcodec,
-                        })
-                    formats.extend(f4m_formats)
-                    continue
-                elif ext == 'm3u8':
-                    formats.extend(self._extract_m3u8_formats(
-                        manifest_url, video_id, 'mp4', preference=preference,
-                        m3u8_id=m3u8_id, fatal=fatal))
-                    continue
-            formats.append({
-                'format_id': format_id,
-                'url': manifest_url,
-                'manifest_url': manifest_url,
-                'ext': 'flv' if bootstrap_info is not None else None,
-                'protocol': 'f4m',
-                'tbr': tbr,
-                'width': width,
-                'height': height,
-                'vcodec': vcodec,
-                'preference': preference,
-            })
-        return formats
-
-    def _m3u8_meta_format(self, m3u8_url, ext=None, preference=None, m3u8_id=None):
-        return {
-            'format_id': '-'.join(filter(None, [m3u8_id, 'meta'])),
-            'url': m3u8_url,
-            'ext': ext,
-            'protocol': 'm3u8',
-            'preference': preference - 100 if preference else -100,
-            'resolution': 'multiple',
-            'format_note': 'Quality selection URL',
-        }
-
-    def _extract_m3u8_formats(self, m3u8_url, video_id, ext=None,
-                              entry_protocol='m3u8', preference=None,
-                              m3u8_id=None, note=None, errnote=None,
-                              fatal=True, live=False):
-        res = self._download_webpage_handle(
-            m3u8_url, video_id,
-            note=note or 'Downloading m3u8 information',
-            errnote=errnote or 'Failed to download m3u8 information',
-            fatal=fatal)
-
-        if res is False:
-            return []
-
-        m3u8_doc, urlh = res
-        m3u8_url = urlh.geturl()
-
-        return self._parse_m3u8_formats(
-            m3u8_doc, m3u8_url, ext=ext, entry_protocol=entry_protocol,
-            preference=preference, m3u8_id=m3u8_id, live=live)
-
-    def _parse_m3u8_formats(self, m3u8_doc, m3u8_url, ext=None,
-                            entry_protocol='m3u8', preference=None,
-                            m3u8_id=None, live=False):
-        if '#EXT-X-FAXS-CM:' in m3u8_doc:  # Adobe Flash Access
-            return []
-
-        if re.search(r'#EXT-X-SESSION-KEY:.*?URI="skd://', m3u8_doc):  # Apple FairPlay
-            return []
-
-        formats = []
-
-        format_url = lambda u: (
-            u
-            if re.match(r'^https?://', u)
-            else compat_urlparse.urljoin(m3u8_url, u))
-
-        # References:
-        # 1. https://tools.ietf.org/html/draft-pantos-http-live-streaming-21
-        # 2. https://github.com/rg3/youtube-dl/issues/12211
-
-        # We should try extracting formats only from master playlists [1, 4.3.4],
-        # i.e. playlists that describe available qualities. On the other hand
-        # media playlists [1, 4.3.3] should be returned as is since they contain
-        # just the media without qualities renditions.
-        # Fortunately, master playlist can be easily distinguished from media
-        # playlist based on particular tags availability. As of [1, 4.3.3, 4.3.4]
-        # master playlist tags MUST NOT appear in a media playist and vice versa.
-        # As of [1, 4.3.3.1] #EXT-X-TARGETDURATION tag is REQUIRED for every
-        # media playlist and MUST NOT appear in master playlist thus we can
-        # clearly detect media playlist with this criterion.
-
-        if '#EXT-X-TARGETDURATION' in m3u8_doc:  # media playlist, return as is
-            return [{
-                'url': m3u8_url,
-                'format_id': m3u8_id,
-                'ext': ext,
-                'protocol': entry_protocol,
-                'preference': preference,
-            }]
-
-        groups = {}
-        last_stream_inf = {}
-
-        def extract_media(x_media_line):
-            media = parse_m3u8_attributes(x_media_line)
-            # As per [1, 4.3.4.1] TYPE, GROUP-ID and NAME are REQUIRED
-            media_type, group_id, name = media.get('TYPE'), media.get('GROUP-ID'), media.get('NAME')
-            if not (media_type and group_id and name):
-                return
-            groups.setdefault(group_id, []).append(media)
-            if media_type not in ('VIDEO', 'AUDIO'):
-                return
-            media_url = media.get('URI')
-            if media_url:
-                format_id = []
-                for v in (m3u8_id, group_id, name):
-                    if v:
-                        format_id.append(v)
-                f = {
-                    'format_id': '-'.join(format_id),
-                    'url': format_url(media_url),
-                    'manifest_url': m3u8_url,
-                    'language': media.get('LANGUAGE'),
-                    'ext': ext,
-                    'protocol': entry_protocol,
-                    'preference': preference,
-                }
-                if media_type == 'AUDIO':
-                    f['vcodec'] = 'none'
-                formats.append(f)
-
-        def build_stream_name():
-            # Despite specification does not mention NAME attribute for
-            # EXT-X-STREAM-INF tag it still sometimes may be present (see [1]
-            # or vidio test in TestInfoExtractor.test_parse_m3u8_formats)
-            # 1. http://www.vidio.com/watch/165683-dj_ambred-booyah-live-2015
-            stream_name = last_stream_inf.get('NAME')
-            if stream_name:
-                return stream_name
-            # If there is no NAME in EXT-X-STREAM-INF it will be obtained
-            # from corresponding rendition group
-            stream_group_id = last_stream_inf.get('VIDEO')
-            if not stream_group_id:
-                return
-            stream_group = groups.get(stream_group_id)
-            if not stream_group:
-                return stream_group_id
-            rendition = stream_group[0]
-            return rendition.get('NAME') or stream_group_id
-
-        for line in m3u8_doc.splitlines():
-            if line.startswith('#EXT-X-STREAM-INF:'):
-                last_stream_inf = parse_m3u8_attributes(line)
-            elif line.startswith('#EXT-X-MEDIA:'):
-                extract_media(line)
-            elif line.startswith('#') or not line.strip():
-                continue
-            else:
-                tbr = float_or_none(
-                    last_stream_inf.get('AVERAGE-BANDWIDTH') or
-                    last_stream_inf.get('BANDWIDTH'), scale=1000)
-                format_id = []
-                if m3u8_id:
-                    format_id.append(m3u8_id)
-                stream_name = build_stream_name()
-                # Bandwidth of live streams may differ over time thus making
-                # format_id unpredictable. So it's better to keep provided
-                # format_id intact.
-                if not live:
-                    format_id.append(stream_name if stream_name else '%d' % (tbr if tbr else len(formats)))
-                manifest_url = format_url(line.strip())
-                f = {
-                    'format_id': '-'.join(format_id),
-                    'url': manifest_url,
-                    'manifest_url': m3u8_url,
-                    'tbr': tbr,
-                    'ext': ext,
-                    'fps': float_or_none(last_stream_inf.get('FRAME-RATE')),
-                    'protocol': entry_protocol,
-                    'preference': preference,
-                }
-                resolution = last_stream_inf.get('RESOLUTION')
-                if resolution:
-                    mobj = re.search(r'(?P<width>\d+)[xX](?P<height>\d+)', resolution)
-                    if mobj:
-                        f['width'] = int(mobj.group('width'))
-                        f['height'] = int(mobj.group('height'))
-                # Unified Streaming Platform
-                mobj = re.search(
-                    r'audio.*?(?:%3D|=)(\d+)(?:-video.*?(?:%3D|=)(\d+))?', f['url'])
-                if mobj:
-                    abr, vbr = mobj.groups()
-                    abr, vbr = float_or_none(abr, 1000), float_or_none(vbr, 1000)
-                    f.update({
-                        'vbr': vbr,
-                        'abr': abr,
-                    })
-                codecs = parse_codecs(last_stream_inf.get('CODECS'))
-                f.update(codecs)
-                audio_group_id = last_stream_inf.get('AUDIO')
-                # As per [1, 4.3.4.1.1] any EXT-X-STREAM-INF tag which
-                # references a rendition group MUST have a CODECS attribute.
-                # However, this is not always respected, for example, [2]
-                # contains EXT-X-STREAM-INF tag which references AUDIO
-                # rendition group but does not have CODECS and despite
-                # referencing audio group an audio group, it represents
-                # a complete (with audio and video) format. So, for such cases
-                # we will ignore references to rendition groups and treat them
-                # as complete formats.
-                if audio_group_id and codecs and f.get('vcodec') != 'none':
-                    audio_group = groups.get(audio_group_id)
-                    if audio_group and audio_group[0].get('URI'):
-                        # TODO: update acodec for audio only formats with
-                        # the same GROUP-ID
-                        f['acodec'] = 'none'
-                formats.append(f)
-                last_stream_inf = {}
-        return formats
-
-    @staticmethod
-    def _xpath_ns(path, namespace=None):
-        if not namespace:
-            return path
-        out = []
-        for c in path.split('/'):
-            if not c or c == '.':
-                out.append(c)
-            else:
-                out.append('{%s}%s' % (namespace, c))
-        return '/'.join(out)
-
-    def _extract_smil_formats(self, smil_url, video_id, fatal=True, f4m_params=None, transform_source=None):
-        smil = self._download_smil(smil_url, video_id, fatal=fatal, transform_source=transform_source)
-
-        if smil is False:
-            assert not fatal
-            return []
-
-        namespace = self._parse_smil_namespace(smil)
-
-        return self._parse_smil_formats(
-            smil, smil_url, video_id, namespace=namespace, f4m_params=f4m_params)
-
-    def _extract_smil_info(self, smil_url, video_id, fatal=True, f4m_params=None):
-        smil = self._download_smil(smil_url, video_id, fatal=fatal)
-        if smil is False:
-            return {}
-        return self._parse_smil(smil, smil_url, video_id, f4m_params=f4m_params)
-
-    def _download_smil(self, smil_url, video_id, fatal=True, transform_source=None):
-        return self._download_xml(
-            smil_url, video_id, 'Downloading SMIL file',
-            'Unable to download SMIL file', fatal=fatal, transform_source=transform_source)
-
-    def _parse_smil(self, smil, smil_url, video_id, f4m_params=None):
-        namespace = self._parse_smil_namespace(smil)
-
-        formats = self._parse_smil_formats(
-            smil, smil_url, video_id, namespace=namespace, f4m_params=f4m_params)
-        subtitles = self._parse_smil_subtitles(smil, namespace=namespace)
-
-        video_id = os.path.splitext(url_basename(smil_url))[0]
-        title = None
-        description = None
-        upload_date = None
-        for meta in smil.findall(self._xpath_ns('./head/meta', namespace)):
-            name = meta.attrib.get('name')
-            content = meta.attrib.get('content')
-            if not name or not content:
-                continue
-            if not title and name == 'title':
-                title = content
-            elif not description and name in ('description', 'abstract'):
-                description = content
-            elif not upload_date and name == 'date':
-                upload_date = unified_strdate(content)
-
-        thumbnails = [{
-            'id': image.get('type'),
-            'url': image.get('src'),
-            'width': int_or_none(image.get('width')),
-            'height': int_or_none(image.get('height')),
-        } for image in smil.findall(self._xpath_ns('.//image', namespace)) if image.get('src')]
-
-        return {
-            'id': video_id,
-            'title': title or video_id,
-            'description': description,
-            'upload_date': upload_date,
-            'thumbnails': thumbnails,
-            'formats': formats,
-            'subtitles': subtitles,
-        }
-
-    def _parse_smil_namespace(self, smil):
-        return self._search_regex(
-            r'(?i)^{([^}]+)?}smil$', smil.tag, 'namespace', default=None)
-
-    def _parse_smil_formats(self, smil, smil_url, video_id, namespace=None, f4m_params=None, transform_rtmp_url=None):
-        base = smil_url
-        for meta in smil.findall(self._xpath_ns('./head/meta', namespace)):
-            b = meta.get('base') or meta.get('httpBase')
-            if b:
-                base = b
-                break
-
-        formats = []
-        rtmp_count = 0
-        http_count = 0
-        m3u8_count = 0
-
-        srcs = []
-        media = smil.findall(self._xpath_ns('.//video', namespace)) + smil.findall(self._xpath_ns('.//audio', namespace))
-        for medium in media:
-            src = medium.get('src')
-            if not src or src in srcs:
-                continue
-            srcs.append(src)
-
-            bitrate = float_or_none(medium.get('system-bitrate') or medium.get('systemBitrate'), 1000)
-            filesize = int_or_none(medium.get('size') or medium.get('fileSize'))
-            width = int_or_none(medium.get('width'))
-            height = int_or_none(medium.get('height'))
-            proto = medium.get('proto')
-            ext = medium.get('ext')
-            src_ext = determine_ext(src)
-            streamer = medium.get('streamer') or base
-
-            if proto == 'rtmp' or streamer.startswith('rtmp'):
-                rtmp_count += 1
-                formats.append({
-                    'url': streamer,
-                    'play_path': src,
-                    'ext': 'flv',
-                    'format_id': 'rtmp-%d' % (rtmp_count if bitrate is None else bitrate),
-                    'tbr': bitrate,
-                    'filesize': filesize,
-                    'width': width,
-                    'height': height,
-                })
-                if transform_rtmp_url:
-                    streamer, src = transform_rtmp_url(streamer, src)
-                    formats[-1].update({
-                        'url': streamer,
-                        'play_path': src,
-                    })
-                continue
-
-            src_url = src if src.startswith('http') else compat_urlparse.urljoin(base, src)
-            src_url = src_url.strip()
-
-            if proto == 'm3u8' or src_ext == 'm3u8':
-                m3u8_formats = self._extract_m3u8_formats(
-                    src_url, video_id, ext or 'mp4', m3u8_id='hls', fatal=False)
-                if len(m3u8_formats) == 1:
-                    m3u8_count += 1
-                    m3u8_formats[0].update({
-                        'format_id': 'hls-%d' % (m3u8_count if bitrate is None else bitrate),
-                        'tbr': bitrate,
-                        'width': width,
-                        'height': height,
-                    })
-                formats.extend(m3u8_formats)
-                continue
-
-            if src_ext == 'f4m':
-                f4m_url = src_url
-                if not f4m_params:
-                    f4m_params = {
-                        'hdcore': '3.2.0',
-                        'plugin': 'flowplayer-3.2.0.1',
-                    }
-                f4m_url += '&' if '?' in f4m_url else '?'
-                f4m_url += compat_urllib_parse_urlencode(f4m_params)
-                formats.extend(self._extract_f4m_formats(f4m_url, video_id, f4m_id='hds', fatal=False))
-                continue
-
-            if src_url.startswith('http') and self._is_valid_url(src, video_id):
-                http_count += 1
-                formats.append({
-                    'url': src_url,
-                    'ext': ext or src_ext or 'flv',
-                    'format_id': 'http-%d' % (bitrate or http_count),
-                    'tbr': bitrate,
-                    'filesize': filesize,
-                    'width': width,
-                    'height': height,
-                })
-                continue
-
-        return formats
-
-    def _parse_smil_subtitles(self, smil, namespace=None, subtitles_lang='en'):
-        urls = []
-        subtitles = {}
-        for num, textstream in enumerate(smil.findall(self._xpath_ns('.//textstream', namespace))):
-            src = textstream.get('src')
-            if not src or src in urls:
-                continue
-            urls.append(src)
-            ext = textstream.get('ext') or mimetype2ext(textstream.get('type')) or determine_ext(src)
-            lang = textstream.get('systemLanguage') or textstream.get('systemLanguageName') or textstream.get('lang') or subtitles_lang
-            subtitles.setdefault(lang, []).append({
-                'url': src,
-                'ext': ext,
-            })
-        return subtitles
-
-    def _extract_xspf_playlist(self, xspf_url, playlist_id, fatal=True):
-        xspf = self._download_xml(
-            xspf_url, playlist_id, 'Downloading xpsf playlist',
-            'Unable to download xspf manifest', fatal=fatal)
-        if xspf is False:
-            return []
-        return self._parse_xspf(
-            xspf, playlist_id, xspf_url=xspf_url,
-            xspf_base_url=base_url(xspf_url))
-
-    def _parse_xspf(self, xspf_doc, playlist_id, xspf_url=None, xspf_base_url=None):
-        NS_MAP = {
-            'xspf': 'http://xspf.org/ns/0/',
-            's1': 'http://static.streamone.nl/player/ns/0',
-        }
-
-        entries = []
-        for track in xspf_doc.findall(xpath_with_ns('./xspf:trackList/xspf:track', NS_MAP)):
-            title = xpath_text(
-                track, xpath_with_ns('./xspf:title', NS_MAP), 'title', default=playlist_id)
-            description = xpath_text(
-                track, xpath_with_ns('./xspf:annotation', NS_MAP), 'description')
-            thumbnail = xpath_text(
-                track, xpath_with_ns('./xspf:image', NS_MAP), 'thumbnail')
-            duration = float_or_none(
-                xpath_text(track, xpath_with_ns('./xspf:duration', NS_MAP), 'duration'), 1000)
-
-            formats = []
-            for location in track.findall(xpath_with_ns('./xspf:location', NS_MAP)):
-                format_url = urljoin(xspf_base_url, location.text)
-                if not format_url:
-                    continue
-                formats.append({
-                    'url': format_url,
-                    'manifest_url': xspf_url,
-                    'format_id': location.get(xpath_with_ns('s1:label', NS_MAP)),
-                    'width': int_or_none(location.get(xpath_with_ns('s1:width', NS_MAP))),
-                    'height': int_or_none(location.get(xpath_with_ns('s1:height', NS_MAP))),
-                })
-            self._sort_formats(formats)
-
-            entries.append({
-                'id': playlist_id,
-                'title': title,
-                'description': description,
-                'thumbnail': thumbnail,
-                'duration': duration,
-                'formats': formats,
-            })
-        return entries
-
-    def _extract_mpd_formats(self, mpd_url, video_id, mpd_id=None, note=None, errnote=None, fatal=True, formats_dict={}):
-        res = self._download_xml_handle(
-            mpd_url, video_id,
-            note=note or 'Downloading MPD manifest',
-            errnote=errnote or 'Failed to download MPD manifest',
-            fatal=fatal)
-        if res is False:
-            return []
-        mpd_doc, urlh = res
-        mpd_base_url = base_url(urlh.geturl())
-
-        return self._parse_mpd_formats(
-            mpd_doc, mpd_id=mpd_id, mpd_base_url=mpd_base_url,
-            formats_dict=formats_dict, mpd_url=mpd_url)
-
-    def _parse_mpd_formats(self, mpd_doc, mpd_id=None, mpd_base_url='', formats_dict={}, mpd_url=None):
-        """
-        Parse formats from MPD manifest.
-        References:
-         1. MPEG-DASH Standard, ISO/IEC 23009-1:2014(E),
-            http://standards.iso.org/ittf/PubliclyAvailableStandards/c065274_ISO_IEC_23009-1_2014.zip
-         2. https://en.wikipedia.org/wiki/Dynamic_Adaptive_Streaming_over_HTTP
-        """
-        if mpd_doc.get('type') == 'dynamic':
-            return []
-
-        namespace = self._search_regex(r'(?i)^{([^}]+)?}MPD$', mpd_doc.tag, 'namespace', default=None)
-
-        def _add_ns(path):
-            return self._xpath_ns(path, namespace)
-
-        def is_drm_protected(element):
-            return element.find(_add_ns('ContentProtection')) is not None
-
-        def extract_multisegment_info(element, ms_parent_info):
-            ms_info = ms_parent_info.copy()
-
-            # As per [1, 5.3.9.2.2] SegmentList and SegmentTemplate share some
-            # common attributes and elements.  We will only extract relevant
-            # for us.
-            def extract_common(source):
-                segment_timeline = source.find(_add_ns('SegmentTimeline'))
-                if segment_timeline is not None:
-                    s_e = segment_timeline.findall(_add_ns('S'))
-                    if s_e:
-                        ms_info['total_number'] = 0
-                        ms_info['s'] = []
-                        for s in s_e:
-                            r = int(s.get('r', 0))
-                            ms_info['total_number'] += 1 + r
-                            ms_info['s'].append({
-                                't': int(s.get('t', 0)),
-                                # @d is mandatory (see [1, 5.3.9.6.2, Table 17, page 60])
-                                'd': int(s.attrib['d']),
-                                'r': r,
-                            })
-                start_number = source.get('startNumber')
-                if start_number:
-                    ms_info['start_number'] = int(start_number)
-                timescale = source.get('timescale')
-                if timescale:
-                    ms_info['timescale'] = int(timescale)
-                segment_duration = source.get('duration')
-                if segment_duration:
-                    ms_info['segment_duration'] = float(segment_duration)
-
-            def extract_Initialization(source):
-                initialization = source.find(_add_ns('Initialization'))
-                if initialization is not None:
-                    ms_info['initialization_url'] = initialization.attrib['sourceURL']
-
-            segment_list = element.find(_add_ns('SegmentList'))
-            if segment_list is not None:
-                extract_common(segment_list)
-                extract_Initialization(segment_list)
-                segment_urls_e = segment_list.findall(_add_ns('SegmentURL'))
-                if segment_urls_e:
-                    ms_info['segment_urls'] = [segment.attrib['media'] for segment in segment_urls_e]
-            else:
-                segment_template = element.find(_add_ns('SegmentTemplate'))
-                if segment_template is not None:
-                    extract_common(segment_template)
-                    media = segment_template.get('media')
-                    if media:
-                        ms_info['media'] = media
-                    initialization = segment_template.get('initialization')
-                    if initialization:
-                        ms_info['initialization'] = initialization
-                    else:
-                        extract_Initialization(segment_template)
-            return ms_info
-
-        mpd_duration = parse_duration(mpd_doc.get('mediaPresentationDuration'))
-        formats = []
-        for period in mpd_doc.findall(_add_ns('Period')):
-            period_duration = parse_duration(period.get('duration')) or mpd_duration
-            period_ms_info = extract_multisegment_info(period, {
-                'start_number': 1,
-                'timescale': 1,
-            })
-            for adaptation_set in period.findall(_add_ns('AdaptationSet')):
-                if is_drm_protected(adaptation_set):
-                    continue
-                adaption_set_ms_info = extract_multisegment_info(adaptation_set, period_ms_info)
-                for representation in adaptation_set.findall(_add_ns('Representation')):
-                    if is_drm_protected(representation):
-                        continue
-                    representation_attrib = adaptation_set.attrib.copy()
-                    representation_attrib.update(representation.attrib)
-                    # According to [1, 5.3.7.2, Table 9, page 41], @mimeType is mandatory
-                    mime_type = representation_attrib['mimeType']
-                    content_type = mime_type.split('/')[0]
-                    if content_type == 'text':
-                        # TODO implement WebVTT downloading
-                        pass
-                    elif content_type in ('video', 'audio'):
-                        base_url = ''
-                        for element in (representation, adaptation_set, period, mpd_doc):
-                            base_url_e = element.find(_add_ns('BaseURL'))
-                            if base_url_e is not None:
-                                base_url = base_url_e.text + base_url
-                                if re.match(r'^https?://', base_url):
-                                    break
-                        if mpd_base_url and not re.match(r'^https?://', base_url):
-                            if not mpd_base_url.endswith('/') and not base_url.startswith('/'):
-                                mpd_base_url += '/'
-                            base_url = mpd_base_url + base_url
-                        representation_id = representation_attrib.get('id')
-                        lang = representation_attrib.get('lang')
-                        url_el = representation.find(_add_ns('BaseURL'))
-                        filesize = int_or_none(url_el.attrib.get('{http://youtube.com/yt/2012/10/10}contentLength') if url_el is not None else None)
-                        bandwidth = int_or_none(representation_attrib.get('bandwidth'))
-                        f = {
-                            'format_id': '%s-%s' % (mpd_id, representation_id) if mpd_id else representation_id,
-                            'url': base_url,
-                            'manifest_url': mpd_url,
-                            'ext': mimetype2ext(mime_type),
-                            'width': int_or_none(representation_attrib.get('width')),
-                            'height': int_or_none(representation_attrib.get('height')),
-                            'tbr': float_or_none(bandwidth, 1000),
-                            'asr': int_or_none(representation_attrib.get('audioSamplingRate')),
-                            'fps': int_or_none(representation_attrib.get('frameRate')),
-                            'language': lang if lang not in ('mul', 'und', 'zxx', 'mis') else None,
-                            'format_note': 'DASH %s' % content_type,
-                            'filesize': filesize,
-                            'container': mimetype2ext(mime_type) + '_dash',
-                        }
-                        f.update(parse_codecs(representation_attrib.get('codecs')))
-                        representation_ms_info = extract_multisegment_info(representation, adaption_set_ms_info)
-
-                        def prepare_template(template_name, identifiers):
-                            tmpl = representation_ms_info[template_name]
-                            # First of, % characters outside $...$ templates
-                            # must be escaped by doubling for proper processing
-                            # by % operator string formatting used further (see
-                            # https://github.com/rg3/youtube-dl/issues/16867).
-                            t = ''
-                            in_template = False
-                            for c in tmpl:
-                                t += c
-                                if c == '$':
-                                    in_template = not in_template
-                                elif c == '%' and not in_template:
-                                    t += c
-                            # Next, $...$ templates are translated to their
-                            # %(...) counterparts to be used with % operator
-                            t = t.replace('$RepresentationID$', representation_id)
-                            t = re.sub(r'\$(%s)\$' % '|'.join(identifiers), r'%(\1)d', t)
-                            t = re.sub(r'\$(%s)%%([^$]+)\$' % '|'.join(identifiers), r'%(\1)\2', t)
-                            t.replace('$$', '$')
-                            return t
-
-                        # @initialization is a regular template like @media one
-                        # so it should be handled just the same way (see
-                        # https://github.com/rg3/youtube-dl/issues/11605)
-                        if 'initialization' in representation_ms_info:
-                            initialization_template = prepare_template(
-                                'initialization',
-                                # As per [1, 5.3.9.4.2, Table 15, page 54] $Number$ and
-                                # $Time$ shall not be included for @initialization thus
-                                # only $Bandwidth$ remains
-                                ('Bandwidth', ))
-                            representation_ms_info['initialization_url'] = initialization_template % {
-                                'Bandwidth': bandwidth,
-                            }
-
-                        def location_key(location):
-                            return 'url' if re.match(r'^https?://', location) else 'path'
-
-                        if 'segment_urls' not in representation_ms_info and 'media' in representation_ms_info:
-
-                            media_template = prepare_template('media', ('Number', 'Bandwidth', 'Time'))
-                            media_location_key = location_key(media_template)
-
-                            # As per [1, 5.3.9.4.4, Table 16, page 55] $Number$ and $Time$
-                            # can't be used at the same time
-                            if '%(Number' in media_template and 's' not in representation_ms_info:
-                                segment_duration = None
-                                if 'total_number' not in representation_ms_info and 'segment_duration' in representation_ms_info:
-                                    segment_duration = float_or_none(representation_ms_info['segment_duration'], representation_ms_info['timescale'])
-                                    representation_ms_info['total_number'] = int(math.ceil(float(period_duration) / segment_duration))
-                                representation_ms_info['fragments'] = [{
-                                    media_location_key: media_template % {
-                                        'Number': segment_number,
-                                        'Bandwidth': bandwidth,
-                                    },
-                                    'duration': segment_duration,
-                                } for segment_number in range(
-                                    representation_ms_info['start_number'],
-                                    representation_ms_info['total_number'] + representation_ms_info['start_number'])]
-                            else:
-                                # $Number*$ or $Time$ in media template with S list available
-                                # Example $Number*$: http://www.svtplay.se/klipp/9023742/stopptid-om-bjorn-borg
-                                # Example $Time$: https://play.arkena.com/embed/avp/v2/player/media/b41dda37-d8e7-4d3f-b1b5-9a9db578bdfe/1/129411
-                                representation_ms_info['fragments'] = []
-                                segment_time = 0
-                                segment_d = None
-                                segment_number = representation_ms_info['start_number']
-
-                                def add_segment_url():
-                                    segment_url = media_template % {
-                                        'Time': segment_time,
-                                        'Bandwidth': bandwidth,
-                                        'Number': segment_number,
-                                    }
-                                    representation_ms_info['fragments'].append({
-                                        media_location_key: segment_url,
-                                        'duration': float_or_none(segment_d, representation_ms_info['timescale']),
-                                    })
-
-                                for num, s in enumerate(representation_ms_info['s']):
-                                    segment_time = s.get('t') or segment_time
-                                    segment_d = s['d']
-                                    add_segment_url()
-                                    segment_number += 1
-                                    for r in range(s.get('r', 0)):
-                                        segment_time += segment_d
-                                        add_segment_url()
-                                        segment_number += 1
-                                    segment_time += segment_d
-                        elif 'segment_urls' in representation_ms_info and 's' in representation_ms_info:
-                            # No media template
-                            # Example: https://www.youtube.com/watch?v=iXZV5uAYMJI
-                            # or any YouTube dashsegments video
-                            fragments = []
-                            segment_index = 0
-                            timescale = representation_ms_info['timescale']
-                            for s in representation_ms_info['s']:
-                                duration = float_or_none(s['d'], timescale)
-                                for r in range(s.get('r', 0) + 1):
-                                    segment_uri = representation_ms_info['segment_urls'][segment_index]
-                                    fragments.append({
-                                        location_key(segment_uri): segment_uri,
-                                        'duration': duration,
-                                    })
-                                    segment_index += 1
-                            representation_ms_info['fragments'] = fragments
-                        elif 'segment_urls' in representation_ms_info:
-                            # Segment URLs with no SegmentTimeline
-                            # Example: https://www.seznam.cz/zpravy/clanek/cesko-zasahne-vitr-o-sile-vichrice-muze-byt-i-zivotu-nebezpecny-39091
-                            # https://github.com/rg3/youtube-dl/pull/14844
-                            fragments = []
-                            segment_duration = float_or_none(
-                                representation_ms_info['segment_duration'],
-                                representation_ms_info['timescale']) if 'segment_duration' in representation_ms_info else None
-                            for segment_url in representation_ms_info['segment_urls']:
-                                fragment = {
-                                    location_key(segment_url): segment_url,
-                                }
-                                if segment_duration:
-                                    fragment['duration'] = segment_duration
-                                fragments.append(fragment)
-                            representation_ms_info['fragments'] = fragments
-                        # NB: MPD manifest may contain direct URLs to unfragmented media.
-                        # No fragments key is present in this case.
-                        if 'fragments' in representation_ms_info:
-                            f.update({
-                                'fragment_base_url': base_url,
-                                'fragments': [],
-                                'protocol': 'http_dash_segments',
-                            })
-                            if 'initialization_url' in representation_ms_info:
-                                initialization_url = representation_ms_info['initialization_url']
-                                if not f.get('url'):
-                                    f['url'] = initialization_url
-                                f['fragments'].append({location_key(initialization_url): initialization_url})
-                            f['fragments'].extend(representation_ms_info['fragments'])
-                        # According to [1, 5.3.5.2, Table 7, page 35] @id of Representation
-                        # is not necessarily unique within a Period thus formats with
-                        # the same `format_id` are quite possible. There are numerous examples
-                        # of such manifests (see https://github.com/rg3/youtube-dl/issues/15111,
-                        # https://github.com/rg3/youtube-dl/issues/13919)
-                        full_info = formats_dict.get(representation_id, {}).copy()
-                        full_info.update(f)
-                        formats.append(full_info)
-                    else:
-                        self.report_warning('Unknown MIME type %s in DASH manifest' % mime_type)
-        return formats
-
-    def _extract_ism_formats(self, ism_url, video_id, ism_id=None, note=None, errnote=None, fatal=True):
-        res = self._download_xml_handle(
-            ism_url, video_id,
-            note=note or 'Downloading ISM manifest',
-            errnote=errnote or 'Failed to download ISM manifest',
-            fatal=fatal)
-        if res is False:
-            return []
-        ism_doc, urlh = res
-
-        return self._parse_ism_formats(ism_doc, urlh.geturl(), ism_id)
-
-    def _parse_ism_formats(self, ism_doc, ism_url, ism_id=None):
-        """
-        Parse formats from ISM manifest.
-        References:
-         1. [MS-SSTR]: Smooth Streaming Protocol,
-            https://msdn.microsoft.com/en-us/library/ff469518.aspx
-        """
-        if ism_doc.get('IsLive') == 'TRUE' or ism_doc.find('Protection') is not None:
-            return []
-
-        duration = int(ism_doc.attrib['Duration'])
-        timescale = int_or_none(ism_doc.get('TimeScale')) or 10000000
-
-        formats = []
-        for stream in ism_doc.findall('StreamIndex'):
-            stream_type = stream.get('Type')
-            if stream_type not in ('video', 'audio'):
-                continue
-            url_pattern = stream.attrib['Url']
-            stream_timescale = int_or_none(stream.get('TimeScale')) or timescale
-            stream_name = stream.get('Name')
-            for track in stream.findall('QualityLevel'):
-                fourcc = track.get('FourCC', 'AACL' if track.get('AudioTag') == '255' else None)
-                # TODO: add support for WVC1 and WMAP
-                if fourcc not in ('H264', 'AVC1', 'AACL'):
-                    self.report_warning('%s is not a supported codec' % fourcc)
-                    continue
-                tbr = int(track.attrib['Bitrate']) // 1000
-                # [1] does not mention Width and Height attributes. However,
-                # they're often present while MaxWidth and MaxHeight are
-                # missing, so should be used as fallbacks
-                width = int_or_none(track.get('MaxWidth') or track.get('Width'))
-                height = int_or_none(track.get('MaxHeight') or track.get('Height'))
-                sampling_rate = int_or_none(track.get('SamplingRate'))
-
-                track_url_pattern = re.sub(r'{[Bb]itrate}', track.attrib['Bitrate'], url_pattern)
-                track_url_pattern = compat_urlparse.urljoin(ism_url, track_url_pattern)
-
-                fragments = []
-                fragment_ctx = {
-                    'time': 0,
-                }
-                stream_fragments = stream.findall('c')
-                for stream_fragment_index, stream_fragment in enumerate(stream_fragments):
-                    fragment_ctx['time'] = int_or_none(stream_fragment.get('t')) or fragment_ctx['time']
-                    fragment_repeat = int_or_none(stream_fragment.get('r')) or 1
-                    fragment_ctx['duration'] = int_or_none(stream_fragment.get('d'))
-                    if not fragment_ctx['duration']:
-                        try:
-                            next_fragment_time = int(stream_fragment[stream_fragment_index + 1].attrib['t'])
-                        except IndexError:
-                            next_fragment_time = duration
-                        fragment_ctx['duration'] = (next_fragment_time - fragment_ctx['time']) / fragment_repeat
-                    for _ in range(fragment_repeat):
-                        fragments.append({
-                            'url': re.sub(r'{start[ _]time}', compat_str(fragment_ctx['time']), track_url_pattern),
-                            'duration': fragment_ctx['duration'] / stream_timescale,
-                        })
-                        fragment_ctx['time'] += fragment_ctx['duration']
-
-                format_id = []
-                if ism_id:
-                    format_id.append(ism_id)
-                if stream_name:
-                    format_id.append(stream_name)
-                format_id.append(compat_str(tbr))
-
-                formats.append({
-                    'format_id': '-'.join(format_id),
-                    'url': ism_url,
-                    'manifest_url': ism_url,
-                    'ext': 'ismv' if stream_type == 'video' else 'isma',
-                    'width': width,
-                    'height': height,
-                    'tbr': tbr,
-                    'asr': sampling_rate,
-                    'vcodec': 'none' if stream_type == 'audio' else fourcc,
-                    'acodec': 'none' if stream_type == 'video' else fourcc,
-                    'protocol': 'ism',
-                    'fragments': fragments,
-                    '_download_params': {
-                        'duration': duration,
-                        'timescale': stream_timescale,
-                        'width': width or 0,
-                        'height': height or 0,
-                        'fourcc': fourcc,
-                        'codec_private_data': track.get('CodecPrivateData'),
-                        'sampling_rate': sampling_rate,
-                        'channels': int_or_none(track.get('Channels', 2)),
-                        'bits_per_sample': int_or_none(track.get('BitsPerSample', 16)),
-                        'nal_unit_length_field': int_or_none(track.get('NALUnitLengthField', 4)),
-                    },
-                })
-        return formats
-
-    def _parse_html5_media_entries(self, base_url, webpage, video_id, m3u8_id=None, m3u8_entry_protocol='m3u8', mpd_id=None, preference=None):
-        def absolute_url(item_url):
-            return urljoin(base_url, item_url)
-
-        def parse_content_type(content_type):
-            if not content_type:
-                return {}
-            ctr = re.search(r'(?P<mimetype>[^/]+/[^;]+)(?:;\s*codecs="?(?P<codecs>[^"]+))?', content_type)
-            if ctr:
-                mimetype, codecs = ctr.groups()
-                f = parse_codecs(codecs)
-                f['ext'] = mimetype2ext(mimetype)
-                return f
-            return {}
-
-        def _media_formats(src, cur_media_type, type_info={}):
-            full_url = absolute_url(src)
-            ext = type_info.get('ext') or determine_ext(full_url)
-            if ext == 'm3u8':
-                is_plain_url = False
-                formats = self._extract_m3u8_formats(
-                    full_url, video_id, ext='mp4',
-                    entry_protocol=m3u8_entry_protocol, m3u8_id=m3u8_id,
-                    preference=preference, fatal=False)
-            elif ext == 'mpd':
-                is_plain_url = False
-                formats = self._extract_mpd_formats(
-                    full_url, video_id, mpd_id=mpd_id, fatal=False)
-            else:
-                is_plain_url = True
-                formats = [{
-                    'url': full_url,
-                    'vcodec': 'none' if cur_media_type == 'audio' else None,
-                }]
-            return is_plain_url, formats
-
-        entries = []
-        # amp-video and amp-audio are very similar to their HTML5 counterparts
-        # so we wll include them right here (see
-        # https://www.ampproject.org/docs/reference/components/amp-video)
-        media_tags = [(media_tag, media_type, '')
-                      for media_tag, media_type
-                      in re.findall(r'(?s)(<(?:amp-)?(video|audio)[^>]*/>)', webpage)]
-        media_tags.extend(re.findall(
-            # We only allow video|audio followed by a whitespace or '>'.
-            # Allowing more characters may end up in significant slow down (see
-            # https://github.com/rg3/youtube-dl/issues/11979, example URL:
-            # http://www.porntrex.com/maps/videositemap.xml).
-            r'(?s)(<(?P<tag>(?:amp-)?(?:video|audio))(?:\s+[^>]*)?>)(.*?)</(?P=tag)>', webpage))
-        for media_tag, media_type, media_content in media_tags:
-            media_info = {
-                'formats': [],
-                'subtitles': {},
-            }
-            media_attributes = extract_attributes(media_tag)
-            src = media_attributes.get('src')
-            if src:
-                _, formats = _media_formats(src, media_type)
-                media_info['formats'].extend(formats)
-            media_info['thumbnail'] = absolute_url(media_attributes.get('poster'))
-            if media_content:
-                for source_tag in re.findall(r'<source[^>]+>', media_content):
-                    source_attributes = extract_attributes(source_tag)
-                    src = source_attributes.get('src')
-                    if not src:
-                        continue
-                    f = parse_content_type(source_attributes.get('type'))
-                    is_plain_url, formats = _media_formats(src, media_type, f)
-                    if is_plain_url:
-                        # res attribute is not standard but seen several times
-                        # in the wild
-                        f.update({
-                            'height': int_or_none(source_attributes.get('res')),
-                            'format_id': source_attributes.get('label'),
-                        })
-                        f.update(formats[0])
-                        media_info['formats'].append(f)
-                    else:
-                        media_info['formats'].extend(formats)
-                for track_tag in re.findall(r'<track[^>]+>', media_content):
-                    track_attributes = extract_attributes(track_tag)
-                    kind = track_attributes.get('kind')
-                    if not kind or kind in ('subtitles', 'captions'):
-                        src = track_attributes.get('src')
-                        if not src:
-                            continue
-                        lang = track_attributes.get('srclang') or track_attributes.get('lang') or track_attributes.get('label')
-                        media_info['subtitles'].setdefault(lang, []).append({
-                            'url': absolute_url(src),
-                        })
-            for f in media_info['formats']:
-                f.setdefault('http_headers', {})['Referer'] = base_url
-            if media_info['formats'] or media_info['subtitles']:
-                entries.append(media_info)
-        return entries
-
-    def _extract_akamai_formats(self, manifest_url, video_id, hosts={}):
-        formats = []
-        hdcore_sign = 'hdcore=3.7.0'
-        f4m_url = re.sub(r'(https?://[^/]+)/i/', r'\1/z/', manifest_url).replace('/master.m3u8', '/manifest.f4m')
-        hds_host = hosts.get('hds')
-        if hds_host:
-            f4m_url = re.sub(r'(https?://)[^/]+', r'\1' + hds_host, f4m_url)
-        if 'hdcore=' not in f4m_url:
-            f4m_url += ('&' if '?' in f4m_url else '?') + hdcore_sign
-        f4m_formats = self._extract_f4m_formats(
-            f4m_url, video_id, f4m_id='hds', fatal=False)
-        for entry in f4m_formats:
-            entry.update({'extra_param_to_segment_url': hdcore_sign})
-        formats.extend(f4m_formats)
-        m3u8_url = re.sub(r'(https?://[^/]+)/z/', r'\1/i/', manifest_url).replace('/manifest.f4m', '/master.m3u8')
-        hls_host = hosts.get('hls')
-        if hls_host:
-            m3u8_url = re.sub(r'(https?://)[^/]+', r'\1' + hls_host, m3u8_url)
-        formats.extend(self._extract_m3u8_formats(
-            m3u8_url, video_id, 'mp4', 'm3u8_native',
-            m3u8_id='hls', fatal=False))
-        return formats
-
-    def _extract_wowza_formats(self, url, video_id, m3u8_entry_protocol='m3u8_native', skip_protocols=[]):
-        query = compat_urlparse.urlparse(url).query
-        url = re.sub(r'/(?:manifest|playlist|jwplayer)\.(?:m3u8|f4m|mpd|smil)', '', url)
-        mobj = re.search(
-            r'(?:(?:http|rtmp|rtsp)(?P<s>s)?:)?(?P<url>//[^?]+)', url)
-        url_base = mobj.group('url')
-        http_base_url = '%s%s:%s' % ('http', mobj.group('s') or '', url_base)
-        formats = []
-
-        def manifest_url(manifest):
-            m_url = '%s/%s' % (http_base_url, manifest)
-            if query:
-                m_url += '?%s' % query
-            return m_url
-
-        if 'm3u8' not in skip_protocols:
-            formats.extend(self._extract_m3u8_formats(
-                manifest_url('playlist.m3u8'), video_id, 'mp4',
-                m3u8_entry_protocol, m3u8_id='hls', fatal=False))
-        if 'f4m' not in skip_protocols:
-            formats.extend(self._extract_f4m_formats(
-                manifest_url('manifest.f4m'),
-                video_id, f4m_id='hds', fatal=False))
-        if 'dash' not in skip_protocols:
-            formats.extend(self._extract_mpd_formats(
-                manifest_url('manifest.mpd'),
-                video_id, mpd_id='dash', fatal=False))
-        if re.search(r'(?:/smil:|\.smil)', url_base):
-            if 'smil' not in skip_protocols:
-                rtmp_formats = self._extract_smil_formats(
-                    manifest_url('jwplayer.smil'),
-                    video_id, fatal=False)
-                for rtmp_format in rtmp_formats:
-                    rtsp_format = rtmp_format.copy()
-                    rtsp_format['url'] = '%s/%s' % (rtmp_format['url'], rtmp_format['play_path'])
-                    del rtsp_format['play_path']
-                    del rtsp_format['ext']
-                    rtsp_format.update({
-                        'url': rtsp_format['url'].replace('rtmp://', 'rtsp://'),
-                        'format_id': rtmp_format['format_id'].replace('rtmp', 'rtsp'),
-                        'protocol': 'rtsp',
-                    })
-                    formats.extend([rtmp_format, rtsp_format])
-        else:
-            for protocol in ('rtmp', 'rtsp'):
-                if protocol not in skip_protocols:
-                    formats.append({
-                        'url': '%s:%s' % (protocol, url_base),
-                        'format_id': protocol,
-                        'protocol': protocol,
-                    })
-        return formats
-
-    def _find_jwplayer_data(self, webpage, video_id=None, transform_source=js_to_json):
-        mobj = re.search(
-            r'(?s)jwplayer\((?P<quote>[\'"])[^\'" ]+(?P=quote)\)(?!</script>).*?\.setup\s*\((?P<options>[^)]+)\)',
-            webpage)
-        if mobj:
-            try:
-                jwplayer_data = self._parse_json(mobj.group('options'),
-                                                 video_id=video_id,
-                                                 transform_source=transform_source)
-            except ExtractorError:
-                pass
-            else:
-                if isinstance(jwplayer_data, dict):
-                    return jwplayer_data
-
-    def _extract_jwplayer_data(self, webpage, video_id, *args, **kwargs):
-        jwplayer_data = self._find_jwplayer_data(
-            webpage, video_id, transform_source=js_to_json)
-        return self._parse_jwplayer_data(
-            jwplayer_data, video_id, *args, **kwargs)
-
-    def _parse_jwplayer_data(self, jwplayer_data, video_id=None, require_title=True,
-                             m3u8_id=None, mpd_id=None, rtmp_params=None, base_url=None):
-        # JWPlayer backward compatibility: flattened playlists
-        # https://github.com/jwplayer/jwplayer/blob/v7.4.3/src/js/api/config.js#L81-L96
-        if 'playlist' not in jwplayer_data:
-            jwplayer_data = {'playlist': [jwplayer_data]}
-
-        entries = []
-
-        # JWPlayer backward compatibility: single playlist item
-        # https://github.com/jwplayer/jwplayer/blob/v7.7.0/src/js/playlist/playlist.js#L10
-        if not isinstance(jwplayer_data['playlist'], list):
-            jwplayer_data['playlist'] = [jwplayer_data['playlist']]
-
-        for video_data in jwplayer_data['playlist']:
-            # JWPlayer backward compatibility: flattened sources
-            # https://github.com/jwplayer/jwplayer/blob/v7.4.3/src/js/playlist/item.js#L29-L35
-            if 'sources' not in video_data:
-                video_data['sources'] = [video_data]
-
-            this_video_id = video_id or video_data['mediaid']
-
-            formats = self._parse_jwplayer_formats(
-                video_data['sources'], video_id=this_video_id, m3u8_id=m3u8_id,
-                mpd_id=mpd_id, rtmp_params=rtmp_params, base_url=base_url)
-
-            subtitles = {}
-            tracks = video_data.get('tracks')
-            if tracks and isinstance(tracks, list):
-                for track in tracks:
-                    if not isinstance(track, dict):
-                        continue
-                    track_kind = track.get('kind')
-                    if not track_kind or not isinstance(track_kind, compat_str):
-                        continue
-                    if track_kind.lower() not in ('captions', 'subtitles'):
-                        continue
-                    track_url = urljoin(base_url, track.get('file'))
-                    if not track_url:
-                        continue
-                    subtitles.setdefault(track.get('label') or 'en', []).append({
-                        'url': self._proto_relative_url(track_url)
-                    })
-
-            entry = {
-                'id': this_video_id,
-                'title': unescapeHTML(video_data['title'] if require_title else video_data.get('title')),
-                'description': video_data.get('description'),
-                'thumbnail': self._proto_relative_url(video_data.get('image')),
-                'timestamp': int_or_none(video_data.get('pubdate')),
-                'duration': float_or_none(jwplayer_data.get('duration') or video_data.get('duration')),
-                'subtitles': subtitles,
-            }
-            # https://github.com/jwplayer/jwplayer/blob/master/src/js/utils/validator.js#L32
-            if len(formats) == 1 and re.search(r'^(?:http|//).*(?:youtube\.com|youtu\.be)/.+', formats[0]['url']):
-                entry.update({
-                    '_type': 'url_transparent',
-                    'url': formats[0]['url'],
-                })
-            else:
-                self._sort_formats(formats)
-                entry['formats'] = formats
-            entries.append(entry)
-        if len(entries) == 1:
-            return entries[0]
-        else:
-            return self.playlist_result(entries)
-
-    def _parse_jwplayer_formats(self, jwplayer_sources_data, video_id=None,
-                                m3u8_id=None, mpd_id=None, rtmp_params=None, base_url=None):
-        urls = []
-        formats = []
-        for source in jwplayer_sources_data:
-            if not isinstance(source, dict):
-                continue
-            source_url = self._proto_relative_url(source.get('file'))
-            if not source_url:
-                continue
-            if base_url:
-                source_url = compat_urlparse.urljoin(base_url, source_url)
-            if source_url in urls:
-                continue
-            urls.append(source_url)
-            source_type = source.get('type') or ''
-            ext = mimetype2ext(source_type) or determine_ext(source_url)
-            if source_type == 'hls' or ext == 'm3u8':
-                formats.extend(self._extract_m3u8_formats(
-                    source_url, video_id, 'mp4', entry_protocol='m3u8_native',
-                    m3u8_id=m3u8_id, fatal=False))
-            elif source_type == 'dash' or ext == 'mpd':
-                formats.extend(self._extract_mpd_formats(
-                    source_url, video_id, mpd_id=mpd_id, fatal=False))
-            elif ext == 'smil':
-                formats.extend(self._extract_smil_formats(
-                    source_url, video_id, fatal=False))
-            # https://github.com/jwplayer/jwplayer/blob/master/src/js/providers/default.js#L67
-            elif source_type.startswith('audio') or ext in (
-                    'oga', 'aac', 'mp3', 'mpeg', 'vorbis'):
-                formats.append({
-                    'url': source_url,
-                    'vcodec': 'none',
-                    'ext': ext,
-                })
-            else:
-                height = int_or_none(source.get('height'))
-                if height is None:
-                    # Often no height is provided but there is a label in
-                    # format like "1080p", "720p SD", or 1080.
-                    height = int_or_none(self._search_regex(
-                        r'^(\d{3,4})[pP]?(?:\b|$)', compat_str(source.get('label') or ''),
-                        'height', default=None))
-                a_format = {
-                    'url': source_url,
-                    'width': int_or_none(source.get('width')),
-                    'height': height,
-                    'tbr': int_or_none(source.get('bitrate')),
-                    'ext': ext,
-                }
-                if source_url.startswith('rtmp'):
-                    a_format['ext'] = 'flv'
-                    # See com/longtailvideo/jwplayer/media/RTMPMediaProvider.as
-                    # of jwplayer.flash.swf
-                    rtmp_url_parts = re.split(
-                        r'((?:mp4|mp3|flv):)', source_url, 1)
-                    if len(rtmp_url_parts) == 3:
-                        rtmp_url, prefix, play_path = rtmp_url_parts
-                        a_format.update({
-                            'url': rtmp_url,
-                            'play_path': prefix + play_path,
-                        })
-                    if rtmp_params:
-                        a_format.update(rtmp_params)
-                formats.append(a_format)
-        return formats
-
-    def _live_title(self, name):
-        """ Generate the title for a live video """
-        now = datetime.datetime.now()
-        now_str = now.strftime('%Y-%m-%d %H:%M')
-        return name + ' ' + now_str
-
-    def _int(self, v, name, fatal=False, **kwargs):
-        res = int_or_none(v, **kwargs)
-        if 'get_attr' in kwargs:
-            print(getattr(v, kwargs['get_attr']))
-        if res is None:
-            msg = 'Failed to extract %s: Could not parse value %r' % (name, v)
-            if fatal:
-                raise ExtractorError(msg)
-            else:
-                self._downloader.report_warning(msg)
-        return res
-
-    def _float(self, v, name, fatal=False, **kwargs):
-        res = float_or_none(v, **kwargs)
-        if res is None:
-            msg = 'Failed to extract %s: Could not parse value %r' % (name, v)
-            if fatal:
-                raise ExtractorError(msg)
-            else:
-                self._downloader.report_warning(msg)
-        return res
-
-    def _set_cookie(self, domain, name, value, expire_time=None, port=None,
-                    path='/', secure=False, discard=False, rest={}, **kwargs):
-        cookie = compat_cookiejar.Cookie(
-            0, name, value, port, port is not None, domain, True,
-            domain.startswith('.'), path, True, secure, expire_time,
-            discard, None, None, rest)
-        self._downloader.cookiejar.set_cookie(cookie)
-
-    def _get_cookies(self, url):
-        """ Return a compat_cookies.SimpleCookie with the cookies for the url """
-        req = sanitized_Request(url)
-        self._downloader.cookiejar.add_cookie_header(req)
-        return compat_cookies.SimpleCookie(req.get_header('Cookie'))
-
-    def get_testcases(self, include_onlymatching=False):
-        t = getattr(self, '_TEST', None)
-        if t:
-            assert not hasattr(self, '_TESTS'), \
-                '%s has _TEST and _TESTS' % type(self).__name__
-            tests = [t]
-        else:
-            tests = getattr(self, '_TESTS', [])
-        for t in tests:
-            if not include_onlymatching and t.get('only_matching', False):
-                continue
-            t['name'] = type(self).__name__[:-len('IE')]
-            yield t
-
-    def is_suitable(self, age_limit):
-        """ Test whether the extractor is generally suitable for the given
-        age limit (i.e. pornographic sites are not, all others usually are) """
-
-        any_restricted = False
-        for tc in self.get_testcases(include_onlymatching=False):
-            if tc.get('playlist', []):
-                tc = tc['playlist'][0]
-            is_restricted = age_restricted(
-                tc.get('info_dict', {}).get('age_limit'), age_limit)
-            if not is_restricted:
-                return True
-            any_restricted = any_restricted or is_restricted
-        return not any_restricted
-
-    def extract_subtitles(self, *args, **kwargs):
-        if (self._downloader.params.get('writesubtitles', False) or
-                self._downloader.params.get('listsubtitles')):
-            return self._get_subtitles(*args, **kwargs)
-        return {}
-
-    def _get_subtitles(self, *args, **kwargs):
-        raise NotImplementedError('This method must be implemented by subclasses')
-
-    @staticmethod
-    def _merge_subtitle_items(subtitle_list1, subtitle_list2):
-        """ Merge subtitle items for one language. Items with duplicated URLs
-        will be dropped. """
-        list1_urls = set([item['url'] for item in subtitle_list1])
-        ret = list(subtitle_list1)
-        ret.extend([item for item in subtitle_list2 if item['url'] not in list1_urls])
-        return ret
-
-    @classmethod
-    def _merge_subtitles(cls, subtitle_dict1, subtitle_dict2):
-        """ Merge two subtitle dictionaries, language by language. """
-        ret = dict(subtitle_dict1)
-        for lang in subtitle_dict2:
-            ret[lang] = cls._merge_subtitle_items(subtitle_dict1.get(lang, []), subtitle_dict2[lang])
-        return ret
-
-    def extract_automatic_captions(self, *args, **kwargs):
-        if (self._downloader.params.get('writeautomaticsub', False) or
-                self._downloader.params.get('listsubtitles')):
-            return self._get_automatic_captions(*args, **kwargs)
-        return {}
-
-    def _get_automatic_captions(self, *args, **kwargs):
-        raise NotImplementedError('This method must be implemented by subclasses')
-
-    def mark_watched(self, *args, **kwargs):
-        if (self._downloader.params.get('mark_watched', False) and
-                (self._get_login_info()[0] is not None or
-                    self._downloader.params.get('cookiefile') is not None)):
-            self._mark_watched(*args, **kwargs)
-
-    def _mark_watched(self, *args, **kwargs):
-        raise NotImplementedError('This method must be implemented by subclasses')
-
-    def geo_verification_headers(self):
-        headers = {}
-        geo_verification_proxy = self._downloader.params.get('geo_verification_proxy')
-        if geo_verification_proxy:
-            headers['Ytdl-request-proxy'] = geo_verification_proxy
-        return headers
-
-    def _generic_id(self, url):
-        return compat_urllib_parse_unquote(os.path.splitext(url.rstrip('/').split('/')[-1])[0])
-
-    def _generic_title(self, url):
-        return compat_urllib_parse_unquote(os.path.splitext(url_basename(url))[0])
-
-
-class SearchInfoExtractor(InfoExtractor):
-    """
-    Base class for paged search queries extractors.
-    They accept URLs in the format _SEARCH_KEY(|all|[0-9]):{query}
-    Instances should define _SEARCH_KEY and _MAX_RESULTS.
-    """
-
-    @classmethod
-    def _make_valid_url(cls):
-        return r'%s(?P<prefix>|[1-9][0-9]*|all):(?P<query>[\s\S]+)' % cls._SEARCH_KEY
-
-    @classmethod
-    def suitable(cls, url):
-        return re.match(cls._make_valid_url(), url) is not None
-
-    def _real_extract(self, query):
-        mobj = re.match(self._make_valid_url(), query)
-        if mobj is None:
-            raise ExtractorError('Invalid search query "%s"' % query)
-
-        prefix = mobj.group('prefix')
-        query = mobj.group('query')
-        if prefix == '':
-            return self._get_n_results(query, 1)
-        elif prefix == 'all':
-            return self._get_n_results(query, self._MAX_RESULTS)
-        else:
-            n = int(prefix)
-            if n <= 0:
-                raise ExtractorError('invalid download number %s for query "%s"' % (n, query))
-            elif n > self._MAX_RESULTS:
-                self._downloader.report_warning('%s returns max %i results (you requested %i)' % (self._SEARCH_KEY, self._MAX_RESULTS, n))
-                n = self._MAX_RESULTS
-            return self._get_n_results(query, n)
-
-    def _get_n_results(self, query, n):
-        """Get a specified number of results for a query"""
-        raise NotImplementedError('This method must be implemented by subclasses')
-
-    @property
-    def SEARCH_KEY(self):
-        return self._SEARCH_KEY
diff --git a/youtube_dl/extractor/commonmistakes.py b/youtube_dl/extractor/commonmistakes.py
deleted file mode 100644
index 79f7a9c..0000000
--- a/youtube_dl/extractor/commonmistakes.py
+++ /dev/null
@@ -1,50 +0,0 @@
-from __future__ import unicode_literals
-
-import sys
-
-from .common import InfoExtractor
-from ..utils import ExtractorError
-
-
-class CommonMistakesIE(InfoExtractor):
-    IE_DESC = False  # Do not list
-    _VALID_URL = r'''(?x)
-        (?:url|URL)$
-    '''
-
-    _TESTS = [{
-        'url': 'url',
-        'only_matching': True,
-    }, {
-        'url': 'URL',
-        'only_matching': True,
-    }]
-
-    def _real_extract(self, url):
-        msg = (
-            'You\'ve asked youtube-dl to download the URL "%s". '
-            'That doesn\'t make any sense. '
-            'Simply remove the parameter in your command or configuration.'
-        ) % url
-        if not self._downloader.params.get('verbose'):
-            msg += ' Add -v to the command line to see what arguments and configuration youtube-dl got.'
-        raise ExtractorError(msg, expected=True)
-
-
-class UnicodeBOMIE(InfoExtractor):
-        IE_DESC = False
-        _VALID_URL = r'(?P<bom>\ufeff)(?P<id>.*)$'
-
-        # Disable test for python 3.2 since BOM is broken in re in this version
-        # (see https://github.com/rg3/youtube-dl/issues/9751)
-        _TESTS = [] if (3, 0) < sys.version_info <= (3, 3) else [{
-            'url': '\ufeffhttp://www.youtube.com/watch?v=BaW_jenozKc',
-            'only_matching': True,
-        }]
-
-        def _real_extract(self, url):
-            real_url = self._match_id(url)
-            self.report_warning(
-                'Your URL starts with a Byte Order Mark (BOM). '
-                'Removing the BOM and looking for "%s" ...' % real_url)
-            return self.url_result(real_url)
diff --git a/youtube_dl/extractor/commonprotocols.py b/youtube_dl/extractor/commonprotocols.py
deleted file mode 100644
index d98331a..0000000
--- a/youtube_dl/extractor/commonprotocols.py
+++ /dev/null
@@ -1,60 +0,0 @@
-from __future__ import unicode_literals
-
-from .common import InfoExtractor
-from ..compat import (
-    compat_urlparse,
-)
-
-
-class RtmpIE(InfoExtractor):
-    IE_DESC = False  # Do not list
-    _VALID_URL = r'(?i)rtmp[est]?://.+'
-
-    _TESTS = [{
-        'url': 'rtmp://cp44293.edgefcs.net/ondemand?auth=daEcTdydfdqcsb8cZcDbAaCbhamacbbawaS-bw7dBb-bWG-GqpGFqCpNCnGoyL&aifp=v001&slist=public/unsecure/audio/2c97899446428e4301471a8cb72b4b97--audio--pmg-20110908-0900a_flv_aac_med_int.mp4',
-        'only_matching': True,
-    }, {
-        'url': 'rtmp://edge.live.hitbox.tv/live/dimak',
-        'only_matching': True,
-    }]
-
-    def _real_extract(self, url):
-        video_id = self._generic_id(url)
-        title = self._generic_title(url)
-        return {
-            'id': video_id,
-            'title': title,
-            'formats': [{
-                'url': url,
-                'ext': 'flv',
-                'format_id': compat_urlparse.urlparse(url).scheme,
-            }],
-        }
-
-
-class MmsIE(InfoExtractor):
-    IE_DESC = False  # Do not list
-    _VALID_URL = r'(?i)mms://.+'
-
-    _TEST = {
-        # Direct MMS link
-        'url': 'mms://kentro.kaist.ac.kr/200907/MilesReid(0709).wmv',
-        'info_dict': {
-            'id': 'MilesReid(0709)',
-            'ext': 'wmv',
-            'title': 'MilesReid(0709)',
-        },
-        'params': {
-            'skip_download': True,  # rtsp downloads, requiring mplayer or mpv
-        },
-    }
-
-    def _real_extract(self, url):
-        video_id = self._generic_id(url)
-        title = self._generic_title(url)
-
-        return {
-            'id': video_id,
-            'title': title,
-            'url': url,
-        }
diff --git a/youtube_dl/extractor/extractors.py b/youtube_dl/extractor/extractors.py
deleted file mode 100644
index ceb72da..0000000
--- a/youtube_dl/extractor/extractors.py
+++ /dev/null
@@ -1,31 +0,0 @@
-# flake8: noqa
-from __future__ import unicode_literals
-
-
-from .commonmistakes import CommonMistakesIE, UnicodeBOMIE
-from .commonprotocols import (
-    MmsIE,
-    RtmpIE,
-)
-
-from .openload import OpenloadIE
-
-from .youtube import (
-    YoutubeIE,
-    YoutubeChannelIE,
-    YoutubeFavouritesIE,
-    YoutubeHistoryIE,
-    YoutubeLiveIE,
-    YoutubePlaylistIE,
-    YoutubePlaylistsIE,
-    YoutubeRecommendedIE,
-    YoutubeSearchDateIE,
-    YoutubeSearchIE,
-    YoutubeSearchURLIE,
-    YoutubeShowIE,
-    YoutubeSubscriptionsIE,
-    YoutubeTruncatedIDIE,
-    YoutubeTruncatedURLIE,
-    YoutubeUserIE,
-    YoutubeWatchLaterIE,
-)
diff --git a/youtube_dl/extractor/generic.py b/youtube_dl/extractor/generic.py
deleted file mode 100644
index aa04905..0000000
--- a/youtube_dl/extractor/generic.py
+++ /dev/null
@@ -1,3335 +0,0 @@
-# coding: utf-8
-
-from __future__ import unicode_literals
-
-import os
-import re
-import sys
-
-from .common import InfoExtractor
-from .youtube import YoutubeIE
-from ..compat import (
-    compat_etree_fromstring,
-    compat_str,
-    compat_urllib_parse_unquote,
-    compat_urlparse,
-    compat_xml_parse_error,
-)
-from ..utils import (
-    determine_ext,
-    ExtractorError,
-    float_or_none,
-    HEADRequest,
-    is_html,
-    js_to_json,
-    KNOWN_EXTENSIONS,
-    merge_dicts,
-    mimetype2ext,
-    orderedSet,
-    sanitized_Request,
-    smuggle_url,
-    unescapeHTML,
-    unified_strdate,
-    unsmuggle_url,
-    UnsupportedError,
-    xpath_text,
-)
-from .commonprotocols import RtmpIE
-from .brightcove import (
-    BrightcoveLegacyIE,
-    BrightcoveNewIE,
-)
-from .nexx import (
-    NexxIE,
-    NexxEmbedIE,
-)
-from .nbc import NBCSportsVPlayerIE
-from .ooyala import OoyalaIE
-from .rutv import RUTVIE
-from .tvc import TVCIE
-from .sportbox import SportBoxEmbedIE
-from .smotri import SmotriIE
-from .myvi import MyviIE
-from .condenast import CondeNastIE
-from .udn import UDNEmbedIE
-from .senateisvp import SenateISVPIE
-from .svt import SVTIE
-from .pornhub import PornHubIE
-from .xhamster import XHamsterEmbedIE
-from .tnaflix import TNAFlixNetworkEmbedIE
-from .drtuber import DrTuberIE
-from .redtube import RedTubeIE
-from .tube8 import Tube8IE
-from .vimeo import VimeoIE
-from .dailymotion import DailymotionIE
-from .dailymail import DailyMailIE
-from .onionstudios import OnionStudiosIE
-from .viewlift import ViewLiftEmbedIE
-from .mtv import MTVServicesEmbeddedIE
-from .pladform import PladformIE
-from .videomore import VideomoreIE
-from .webcaster import WebcasterFeedIE
-from .googledrive import GoogleDriveIE
-from .jwplatform import JWPlatformIE
-from .digiteka import DigitekaIE
-from .arkena import ArkenaIE
-from .instagram import InstagramIE
-from .liveleak import LiveLeakIE
-from .threeqsdn import ThreeQSDNIE
-from .theplatform import ThePlatformIE
-from .vessel import VesselIE
-from .kaltura import KalturaIE
-from .eagleplatform import EaglePlatformIE
-from .facebook import FacebookIE
-from .soundcloud import SoundcloudIE
-from .tunein import TuneInBaseIE
-from .vbox7 import Vbox7IE
-from .dbtv import DBTVIE
-from .piksel import PikselIE
-from .videa import VideaIE
-from .twentymin import TwentyMinutenIE
-from .ustream import UstreamIE
-from .openload import OpenloadIE
-from .videopress import VideoPressIE
-from .rutube import RutubeIE
-from .limelight import LimelightBaseIE
-from .anvato import AnvatoIE
-from .washingtonpost import WashingtonPostIE
-from .wistia import WistiaIE
-from .mediaset import MediasetIE
-from .joj import JojIE
-from .megaphone import MegaphoneIE
-from .vzaar import VzaarIE
-from .channel9 import Channel9IE
-from .vshare import VShareIE
-from .mediasite import MediasiteIE
-from .springboardplatform import SpringboardPlatformIE
-from .yapfiles import YapFilesIE
-from .vice import ViceIE
-from .xfileshare import XFileShareIE
-from .cloudflarestream import CloudflareStreamIE
-from .peertube import PeerTubeIE
-from .indavideo import IndavideoEmbedIE
-from .apa import APAIE
-from .foxnews import FoxNewsIE
-
-
-class GenericIE(InfoExtractor):
-    IE_DESC = 'Generic downloader that works on some sites'
-    _VALID_URL = r'.*'
-    IE_NAME = 'generic'
-    _TESTS = [
-        # Direct link to a video
-        {
-            'url': 'http://media.w3.org/2010/05/sintel/trailer.mp4',
-            'md5': '67d406c2bcb6af27fa886f31aa934bbe',
-            'info_dict': {
-                'id': 'trailer',
-                'ext': 'mp4',
-                'title': 'trailer',
-                'upload_date': '20100513',
-            }
-        },
-        # Direct link to media delivered compressed (until Accept-Encoding is *)
-        {
-            'url': 'http://calimero.tk/muzik/FictionJunction-Parallel_Hearts.flac',
-            'md5': '128c42e68b13950268b648275386fc74',
-            'info_dict': {
-                'id': 'FictionJunction-Parallel_Hearts',
-                'ext': 'flac',
-                'title': 'FictionJunction-Parallel_Hearts',
-                'upload_date': '20140522',
-            },
-            'expected_warnings': [
-                'URL could be a direct video link, returning it as such.'
-            ],
-            'skip': 'URL invalid',
-        },
-        # Direct download with broken HEAD
-        {
-            'url': 'http://ai-radio.org:8000/radio.opus',
-            'info_dict': {
-                'id': 'radio',
-                'ext': 'opus',
-                'title': 'radio',
-            },
-            'params': {
-                'skip_download': True,  # infinite live stream
-            },
-            'expected_warnings': [
-                r'501.*Not Implemented',
-                r'400.*Bad Request',
-            ],
-        },
-        # Direct link with incorrect MIME type
-        {
-            'url': 'http://ftp.nluug.nl/video/nluug/2014-11-20_nj14/zaal-2/5_Lennart_Poettering_-_Systemd.webm',
-            'md5': '4ccbebe5f36706d85221f204d7eb5913',
-            'info_dict': {
-                'url': 'http://ftp.nluug.nl/video/nluug/2014-11-20_nj14/zaal-2/5_Lennart_Poettering_-_Systemd.webm',
-                'id': '5_Lennart_Poettering_-_Systemd',
-                'ext': 'webm',
-                'title': '5_Lennart_Poettering_-_Systemd',
-                'upload_date': '20141120',
-            },
-            'expected_warnings': [
-                'URL could be a direct video link, returning it as such.'
-            ]
-        },
-        # RSS feed
-        {
-            'url': 'http://phihag.de/2014/youtube-dl/rss2.xml',
-            'info_dict': {
-                'id': 'http://phihag.de/2014/youtube-dl/rss2.xml',
-                'title': 'Zero Punctuation',
-                'description': 're:.*groundbreaking video review series.*'
-            },
-            'playlist_mincount': 11,
-        },
-        # RSS feed with enclosure
-        {
-            'url': 'http://podcastfeeds.nbcnews.com/audio/podcast/MSNBC-MADDOW-NETCAST-M4V.xml',
-            'info_dict': {
-                'id': 'pdv_maddow_netcast_m4v-02-27-2015-201624',
-                'ext': 'm4v',
-                'upload_date': '20150228',
-                'title': 'pdv_maddow_netcast_m4v-02-27-2015-201624',
-            }
-        },
-        # RSS feed with enclosures and unsupported link URLs
-        {
-            'url': 'http://www.hellointernet.fm/podcast?format=rss',
-            'info_dict': {
-                'id': 'http://www.hellointernet.fm/podcast?format=rss',
-                'description': 'CGP Grey and Brady Haran talk about YouTube, life, work, whatever.',
-                'title': 'Hello Internet',
-            },
-            'playlist_mincount': 100,
-        },
-        # SMIL from http://videolectures.net/promogram_igor_mekjavic_eng
-        {
-            'url': 'http://videolectures.net/promogram_igor_mekjavic_eng/video/1/smil.xml',
-            'info_dict': {
-                'id': 'smil',
-                'ext': 'mp4',
-                'title': 'Automatics, robotics and biocybernetics',
-                'description': 'md5:815fc1deb6b3a2bff99de2d5325be482',
-                'upload_date': '20130627',
-                'formats': 'mincount:16',
-                'subtitles': 'mincount:1',
-            },
-            'params': {
-                'force_generic_extractor': True,
-                'skip_download': True,
-            },
-        },
-        # SMIL from http://www1.wdr.de/mediathek/video/livestream/index.html
-        {
-            'url': 'http://metafilegenerator.de/WDR/WDR_FS/hds/hds.smil',
-            'info_dict': {
-                'id': 'hds',
-                'ext': 'flv',
-                'title': 'hds',
-                'formats': 'mincount:1',
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        # SMIL from https://www.restudy.dk/video/play/id/1637
-        {
-            'url': 'https://www.restudy.dk/awsmedia/SmilDirectory/video_1637.xml',
-            'info_dict': {
-                'id': 'video_1637',
-                'ext': 'flv',
-                'title': 'video_1637',
-                'formats': 'mincount:3',
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        # SMIL from http://adventure.howstuffworks.com/5266-cool-jobs-iditarod-musher-video.htm
-        {
-            'url': 'http://services.media.howstuffworks.com/videos/450221/smil-service.smil',
-            'info_dict': {
-                'id': 'smil-service',
-                'ext': 'flv',
-                'title': 'smil-service',
-                'formats': 'mincount:1',
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        # SMIL from http://new.livestream.com/CoheedandCambria/WebsterHall/videos/4719370
-        {
-            'url': 'http://api.new.livestream.com/accounts/1570303/events/1585861/videos/4719370.smil',
-            'info_dict': {
-                'id': '4719370',
-                'ext': 'mp4',
-                'title': '571de1fd-47bc-48db-abf9-238872a58d1f',
-                'formats': 'mincount:3',
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        # XSPF playlist from http://www.telegraaf.nl/tv/nieuws/binnenland/24353229/__Tikibad_ontruimd_wegens_brand__.html
-        {
-            'url': 'http://www.telegraaf.nl/xml/playlist/2015/8/7/mZlp2ctYIUEB.xspf',
-            'info_dict': {
-                'id': 'mZlp2ctYIUEB',
-                'ext': 'mp4',
-                'title': 'Tikibad ontruimd wegens brand',
-                'description': 'md5:05ca046ff47b931f9b04855015e163a4',
-                'thumbnail': r're:^https?://.*\.jpg$',
-                'duration': 33,
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        # MPD from http://dash-mse-test.appspot.com/media.html
-        {
-            'url': 'http://yt-dash-mse-test.commondatastorage.googleapis.com/media/car-20120827-manifest.mpd',
-            'md5': '4b57baab2e30d6eb3a6a09f0ba57ef53',
-            'info_dict': {
-                'id': 'car-20120827-manifest',
-                'ext': 'mp4',
-                'title': 'car-20120827-manifest',
-                'formats': 'mincount:9',
-                'upload_date': '20130904',
-            },
-            'params': {
-                'format': 'bestvideo',
-            },
-        },
-        # m3u8 served with Content-Type: audio/x-mpegURL; charset=utf-8
-        {
-            'url': 'http://once.unicornmedia.com/now/master/playlist/bb0b18ba-64f5-4b1b-a29f-0ac252f06b68/77a785f3-5188-4806-b788-0893a61634ed/93677179-2d99-4ef4-9e17-fe70d49abfbf/content.m3u8',
-            'info_dict': {
-                'id': 'content',
-                'ext': 'mp4',
-                'title': 'content',
-                'formats': 'mincount:8',
-            },
-            'params': {
-                # m3u8 downloads
-                'skip_download': True,
-            },
-            'skip': 'video gone',
-        },
-        # m3u8 served with Content-Type: text/plain
-        {
-            'url': 'http://www.nacentapps.com/m3u8/index.m3u8',
-            'info_dict': {
-                'id': 'index',
-                'ext': 'mp4',
-                'title': 'index',
-                'upload_date': '20140720',
-                'formats': 'mincount:11',
-            },
-            'params': {
-                # m3u8 downloads
-                'skip_download': True,
-            },
-            'skip': 'video gone',
-        },
-        # google redirect
-        {
-            'url': 'http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CCUQtwIwAA&url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DcmQHVoWB5FY&ei=F-sNU-LLCaXk4QT52ICQBQ&usg=AFQjCNEw4hL29zgOohLXvpJ-Bdh2bils1Q&bvm=bv.61965928,d.bGE',
-            'info_dict': {
-                'id': 'cmQHVoWB5FY',
-                'ext': 'mp4',
-                'upload_date': '20130224',
-                'uploader_id': 'TheVerge',
-                'description': r're:^Chris Ziegler takes a look at the\.*',
-                'uploader': 'The Verge',
-                'title': 'First Firefox OS phones side-by-side',
-            },
-            'params': {
-                'skip_download': False,
-            }
-        },
-        {
-            # redirect in Refresh HTTP header
-            'url': 'https://www.facebook.com/l.php?u=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DpO8h3EaFRdo&h=TAQHsoToz&enc=AZN16h-b6o4Zq9pZkCCdOLNKMN96BbGMNtcFwHSaazus4JHT_MFYkAA-WARTX2kvsCIdlAIyHZjl6d33ILIJU7Jzwk_K3mcenAXoAzBNoZDI_Q7EXGDJnIhrGkLXo_LJ_pAa2Jzbx17UHMd3jAs--6j2zaeto5w9RTn8T_1kKg3fdC5WPX9Dbb18vzH7YFX0eSJmoa6SP114rvlkw6pkS1-T&s=1',
-            'info_dict': {
-                'id': 'pO8h3EaFRdo',
-                'ext': 'mp4',
-                'title': 'Tripeo Boiler Room x Dekmantel Festival DJ Set',
-                'description': 'md5:6294cc1af09c4049e0652b51a2df10d5',
-                'upload_date': '20150917',
-                'uploader_id': 'brtvofficial',
-                'uploader': 'Boiler Room',
-            },
-            'params': {
-                'skip_download': False,
-            },
-        },
-        {
-            'url': 'http://www.hodiho.fr/2013/02/regis-plante-sa-jeep.html',
-            'md5': '85b90ccc9d73b4acd9138d3af4c27f89',
-            'info_dict': {
-                'id': '13601338388002',
-                'ext': 'mp4',
-                'uploader': 'www.hodiho.fr',
-                'title': 'R\u00e9gis plante sa Jeep',
-            }
-        },
-        # bandcamp page with custom domain
-        {
-            'add_ie': ['Bandcamp'],
-            'url': 'http://bronyrock.com/track/the-pony-mash',
-            'info_dict': {
-                'id': '3235767654',
-                'ext': 'mp3',
-                'title': 'The Pony Mash',
-                'uploader': 'M_Pallante',
-            },
-            'skip': 'There is a limit of 200 free downloads / month for the test song',
-        },
-        {
-            # embedded brightcove video
-            # it also tests brightcove videos that need to set the 'Referer'
-            # in the http requests
-            'add_ie': ['BrightcoveLegacy'],
-            'url': 'http://www.bfmtv.com/video/bfmbusiness/cours-bourse/cours-bourse-l-analyse-technique-154522/',
-            'info_dict': {
-                'id': '2765128793001',
-                'ext': 'mp4',
-                'title': 'Le cours de bourse : l’analyse technique',
-                'description': 'md5:7e9ad046e968cb2d1114004aba466fd9',
-                'uploader': 'BFM BUSINESS',
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            # embedded with itemprop embedURL and video id spelled as `idVideo`
-            'add_id': ['BrightcoveLegacy'],
-            'url': 'http://bfmbusiness.bfmtv.com/mediaplayer/chroniques/olivier-delamarche/',
-            'info_dict': {
-                'id': '5255628253001',
-                'ext': 'mp4',
-                'title': 'md5:37c519b1128915607601e75a87995fc0',
-                'description': 'md5:37f7f888b434bb8f8cc8dbd4f7a4cf26',
-                'uploader': 'BFM BUSINESS',
-                'uploader_id': '876450612001',
-                'timestamp': 1482255315,
-                'upload_date': '20161220',
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            # https://github.com/rg3/youtube-dl/issues/2253
-            'url': 'http://bcove.me/i6nfkrc3',
-            'md5': '0ba9446db037002366bab3b3eb30c88c',
-            'info_dict': {
-                'id': '3101154703001',
-                'ext': 'mp4',
-                'title': 'Still no power',
-                'uploader': 'thestar.com',
-                'description': 'Mississauga resident David Farmer is still out of power as a result of the ice storm a month ago. To keep the house warm, Farmer cuts wood from his property for a wood burning stove downstairs.',
-            },
-            'add_ie': ['BrightcoveLegacy'],
-            'skip': 'video gone',
-        },
-        {
-            'url': 'http://www.championat.com/video/football/v/87/87499.html',
-            'md5': 'fb973ecf6e4a78a67453647444222983',
-            'info_dict': {
-                'id': '3414141473001',
-                'ext': 'mp4',
-                'title': 'Видео. Удаление Дзагоева (ЦСКА)',
-                'description': 'Онлайн-трансляция матча ЦСКА - "Волга"',
-                'uploader': 'Championat',
-            },
-        },
-        {
-            # https://github.com/rg3/youtube-dl/issues/3541
-            'add_ie': ['BrightcoveLegacy'],
-            'url': 'http://www.kijk.nl/sbs6/leermijvrouwenkennen/videos/jqMiXKAYan2S/aflevering-1',
-            'info_dict': {
-                'id': '3866516442001',
-                'ext': 'mp4',
-                'title': 'Leer mij vrouwen kennen: Aflevering 1',
-                'description': 'Leer mij vrouwen kennen: Aflevering 1',
-                'uploader': 'SBS Broadcasting',
-            },
-            'skip': 'Restricted to Netherlands',
-            'params': {
-                'skip_download': True,  # m3u8 download
-            },
-        },
-        {
-            # Brightcove video in <iframe>
-            'url': 'http://www.un.org/chinese/News/story.asp?NewsID=27724',
-            'md5': '36d74ef5e37c8b4a2ce92880d208b968',
-            'info_dict': {
-                'id': '5360463607001',
-                'ext': 'mp4',
-                'title': '叙利亚失明儿童在废墟上演唱《心跳》  呼吁获得正常童年生活',
-                'description': '联合国儿童基金会中东和北非区域大使、作曲家扎德·迪拉尼（Zade Dirani）在3月15日叙利亚冲突爆发7周年纪念日之际发布了为叙利亚谱写的歌曲《心跳》（HEARTBEAT），为受到六年冲突影响的叙利亚儿童发出强烈呐喊，呼吁世界做出共同努力，使叙利亚儿童重新获得享有正常童年生活的权利。',
-                'uploader': 'United Nations',
-                'uploader_id': '1362235914001',
-                'timestamp': 1489593889,
-                'upload_date': '20170315',
-            },
-            'add_ie': ['BrightcoveLegacy'],
-        },
-        {
-            # Brightcove with alternative playerID key
-            'url': 'http://www.nature.com/nmeth/journal/v9/n7/fig_tab/nmeth.2062_SV1.html',
-            'info_dict': {
-                'id': 'nmeth.2062_SV1',
-                'title': 'Simultaneous multiview imaging of the Drosophila syncytial blastoderm : Quantitative high-speed imaging of entire developing embryos with simultaneous multiview light-sheet microscopy : Nature Methods : Nature Research',
-            },
-            'playlist': [{
-                'info_dict': {
-                    'id': '2228375078001',
-                    'ext': 'mp4',
-                    'title': 'nmeth.2062-sv1',
-                    'description': 'nmeth.2062-sv1',
-                    'timestamp': 1363357591,
-                    'upload_date': '20130315',
-                    'uploader': 'Nature Publishing Group',
-                    'uploader_id': '1964492299001',
-                },
-            }],
-        },
-        {
-            # Brightcove with UUID in videoPlayer
-            'url': 'http://www8.hp.com/cn/zh/home.html',
-            'info_dict': {
-                'id': '5255815316001',
-                'ext': 'mp4',
-                'title': 'Sprocket Video - China',
-                'description': 'Sprocket Video - China',
-                'uploader': 'HP-Video Gallery',
-                'timestamp': 1482263210,
-                'upload_date': '20161220',
-                'uploader_id': '1107601872001',
-            },
-            'params': {
-                'skip_download': True,  # m3u8 download
-            },
-            'skip': 'video rotates...weekly?',
-        },
-        {
-            # Brightcove:new type [2].
-            'url': 'http://www.delawaresportszone.com/video-st-thomas-more-earns-first-trip-to-basketball-semis',
-            'md5': '2b35148fcf48da41c9fb4591650784f3',
-            'info_dict': {
-                'id': '5348741021001',
-                'ext': 'mp4',
-                'upload_date': '20170306',
-                'uploader_id': '4191638492001',
-                'timestamp': 1488769918,
-                'title': 'VIDEO:  St. Thomas More earns first trip to basketball semis',
-
-            },
-        },
-        {
-            # Alternative brightcove <video> attributes
-            'url': 'http://www.programme-tv.net/videos/extraits/81095-guillaume-canet-evoque-les-rumeurs-d-infidelite-de-marion-cotillard-avec-brad-pitt-dans-vivement-dimanche/',
-            'info_dict': {
-                'id': '81095-guillaume-canet-evoque-les-rumeurs-d-infidelite-de-marion-cotillard-avec-brad-pitt-dans-vivement-dimanche',
-                'title': "Guillaume Canet évoque les rumeurs d'infidélité de Marion Cotillard avec Brad Pitt dans Vivement Dimanche, Extraits : toutes les vidéos avec Télé-Loisirs",
-            },
-            'playlist': [{
-                'md5': '732d22ba3d33f2f3fc253c39f8f36523',
-                'info_dict': {
-                    'id': '5311302538001',
-                    'ext': 'mp4',
-                    'title': "Guillaume Canet évoque les rumeurs d'infidélité de Marion Cotillard avec Brad Pitt dans Vivement Dimanche",
-                    'description': "Guillaume Canet évoque les rumeurs d'infidélité de Marion Cotillard avec Brad Pitt dans Vivement Dimanche (France 2, 5 février 2017)",
-                    'timestamp': 1486321708,
-                    'upload_date': '20170205',
-                    'uploader_id': '800000640001',
-                },
-                'only_matching': True,
-            }],
-        },
-        {
-            # Brightcove with UUID in videoPlayer
-            'url': 'http://www8.hp.com/cn/zh/home.html',
-            'info_dict': {
-                'id': '5255815316001',
-                'ext': 'mp4',
-                'title': 'Sprocket Video - China',
-                'description': 'Sprocket Video - China',
-                'uploader': 'HP-Video Gallery',
-                'timestamp': 1482263210,
-                'upload_date': '20161220',
-                'uploader_id': '1107601872001',
-            },
-            'params': {
-                'skip_download': True,  # m3u8 download
-            },
-        },
-        # ooyala video
-        {
-            'url': 'http://www.rollingstone.com/music/videos/norwegian-dj-cashmere-cat-goes-spartan-on-with-me-premiere-20131219',
-            'md5': '166dd577b433b4d4ebfee10b0824d8ff',
-            'info_dict': {
-                'id': 'BwY2RxaTrTkslxOfcan0UCf0YqyvWysJ',
-                'ext': 'mp4',
-                'title': '2cc213299525360.mov',  # that's what we get
-                'duration': 238.231,
-            },
-            'add_ie': ['Ooyala'],
-        },
-        {
-            # ooyala video embedded with http://player.ooyala.com/iframe.js
-            'url': 'http://www.macrumors.com/2015/07/24/steve-jobs-the-man-in-the-machine-first-trailer/',
-            'info_dict': {
-                'id': 'p0MGJndjoG5SOKqO_hZJuZFPB-Tr5VgB',
-                'ext': 'mp4',
-                'title': '"Steve Jobs: Man in the Machine" trailer',
-                'description': 'The first trailer for the Alex Gibney documentary "Steve Jobs: Man in the Machine."',
-                'duration': 135.427,
-            },
-            'params': {
-                'skip_download': True,
-            },
-            'skip': 'movie expired',
-        },
-        # ooyala video embedded with http://player.ooyala.com/static/v4/production/latest/core.min.js
-        {
-            'url': 'http://wnep.com/2017/07/22/steampunk-fest-comes-to-honesdale/',
-            'info_dict': {
-                'id': 'lwYWYxYzE6V5uJMjNGyKtwwiw9ZJD7t2',
-                'ext': 'mp4',
-                'title': 'Steampunk Fest Comes to Honesdale',
-                'duration': 43.276,
-            },
-            'params': {
-                'skip_download': True,
-            }
-        },
-        # embed.ly video
-        {
-            'url': 'http://www.tested.com/science/weird/460206-tested-grinding-coffee-2000-frames-second/',
-            'info_dict': {
-                'id': '9ODmcdjQcHQ',
-                'ext': 'mp4',
-                'title': 'Tested: Grinding Coffee at 2000 Frames Per Second',
-                'upload_date': '20140225',
-                'description': 'md5:06a40fbf30b220468f1e0957c0f558ff',
-                'uploader': 'Tested',
-                'uploader_id': 'testedcom',
-            },
-            # No need to test YoutubeIE here
-            'params': {
-                'skip_download': True,
-            },
-        },
-        # funnyordie embed
-        {
-            'url': 'http://www.theguardian.com/world/2014/mar/11/obama-zach-galifianakis-between-two-ferns',
-            'info_dict': {
-                'id': '18e820ec3f',
-                'ext': 'mp4',
-                'title': 'Between Two Ferns with Zach Galifianakis: President Barack Obama',
-                'description': 'Episode 18: President Barack Obama sits down with Zach Galifianakis for his most memorable interview yet.',
-            },
-            # HEAD requests lead to endless 301, while GET is OK
-            'expected_warnings': ['301'],
-        },
-        # RUTV embed
-        {
-            'url': 'http://www.rg.ru/2014/03/15/reg-dfo/anklav-anons.html',
-            'info_dict': {
-                'id': '776940',
-                'ext': 'mp4',
-                'title': 'Охотское море стало целиком российским',
-                'description': 'md5:5ed62483b14663e2a95ebbe115eb8f43',
-            },
-            'params': {
-                # m3u8 download
-                'skip_download': True,
-            },
-        },
-        # TVC embed
-        {
-            'url': 'http://sch1298sz.mskobr.ru/dou_edu/karamel_ki/filial_galleries/video/iframe_src_http_tvc_ru_video_iframe_id_55304_isplay_false_acc_video_id_channel_brand_id_11_show_episodes_episode_id_32307_frameb/',
-            'info_dict': {
-                'id': '55304',
-                'ext': 'mp4',
-                'title': 'Дошкольное воспитание',
-            },
-        },
-        # SportBox embed
-        {
-            'url': 'http://www.vestifinance.ru/articles/25753',
-            'info_dict': {
-                'id': '25753',
-                'title': 'Прямые трансляции с Форума-выставки "Госзаказ-2013"',
-            },
-            'playlist': [{
-                'info_dict': {
-                    'id': '370908',
-                    'title': 'Госзаказ. День 3',
-                    'ext': 'mp4',
-                }
-            }, {
-                'info_dict': {
-                    'id': '370905',
-                    'title': 'Госзаказ. День 2',
-                    'ext': 'mp4',
-                }
-            }, {
-                'info_dict': {
-                    'id': '370902',
-                    'title': 'Госзаказ. День 1',
-                    'ext': 'mp4',
-                }
-            }],
-            'params': {
-                # m3u8 download
-                'skip_download': True,
-            },
-        },
-        # Myvi.ru embed
-        {
-            'url': 'http://www.kinomyvi.tv/news/detail/Pervij-dublirovannij-trejler--Uzhastikov-_nOw1',
-            'info_dict': {
-                'id': 'f4dafcad-ff21-423d-89b5-146cfd89fa1e',
-                'ext': 'mp4',
-                'title': 'Ужастики, русский трейлер (2015)',
-                'thumbnail': r're:^https?://.*\.jpg$',
-                'duration': 153,
-            }
-        },
-        # XHamster embed
-        {
-            'url': 'http://www.numisc.com/forum/showthread.php?11696-FM15-which-pumiscer-was-this-%28-vid-%29-%28-alfa-as-fuck-srx-%29&s=711f5db534502e22260dec8c5e2d66d8',
-            'info_dict': {
-                'id': 'showthread',
-                'title': '[NSFL] [FM15] which pumiscer was this ( vid ) ( alfa as fuck srx )',
-            },
-            'playlist_mincount': 7,
-            # This forum does not allow <iframe> syntaxes anymore
-            # Now HTML tags are displayed as-is
-            'skip': 'No videos on this page',
-        },
-        # Embedded TED video
-        {
-            'url': 'http://en.support.wordpress.com/videos/ted-talks/',
-            'md5': '65fdff94098e4a607385a60c5177c638',
-            'info_dict': {
-                'id': '1969',
-                'ext': 'mp4',
-                'title': 'Hidden miracles of the natural world',
-                'uploader': 'Louie Schwartzberg',
-                'description': 'md5:8145d19d320ff3e52f28401f4c4283b9',
-            }
-        },
-        # nowvideo embed hidden behind percent encoding
-        {
-            'url': 'http://www.waoanime.tv/the-super-dimension-fortress-macross-episode-1/',
-            'md5': '2baf4ddd70f697d94b1c18cf796d5107',
-            'info_dict': {
-                'id': '06e53103ca9aa',
-                'ext': 'flv',
-                'title': 'Macross Episode 001  Watch Macross Episode 001 onl',
-                'description': 'No description',
-            },
-        },
-        # arte embed
-        {
-            'url': 'http://www.tv-replay.fr/redirection/20-03-14/x-enius-arte-10753389.html',
-            'md5': '7653032cbb25bf6c80d80f217055fa43',
-            'info_dict': {
-                'id': '048195-004_PLUS7-F',
-                'ext': 'flv',
-                'title': 'X:enius',
-                'description': 'md5:d5fdf32ef6613cdbfd516ae658abf168',
-                'upload_date': '20140320',
-            },
-            'params': {
-                'skip_download': 'Requires rtmpdump'
-            },
-            'skip': 'video gone',
-        },
-        # francetv embed
-        {
-            'url': 'http://www.tsprod.com/replay-du-concert-alcaline-de-calogero',
-            'info_dict': {
-                'id': 'EV_30231',
-                'ext': 'mp4',
-                'title': 'Alcaline, le concert avec Calogero',
-                'description': 'md5:61f08036dcc8f47e9cfc33aed08ffaff',
-                'upload_date': '20150226',
-                'timestamp': 1424989860,
-                'duration': 5400,
-            },
-            'params': {
-                # m3u8 downloads
-                'skip_download': True,
-            },
-            'expected_warnings': [
-                'Forbidden'
-            ]
-        },
-        # Condé Nast embed
-        {
-            'url': 'http://www.wired.com/2014/04/honda-asimo/',
-            'md5': 'ba0dfe966fa007657bd1443ee672db0f',
-            'info_dict': {
-                'id': '53501be369702d3275860000',
-                'ext': 'mp4',
-                'title': 'Honda’s  New Asimo Robot Is More Human Than Ever',
-            }
-        },
-        # Dailymotion embed
-        {
-            'url': 'http://www.spi0n.com/zap-spi0n-com-n216/',
-            'md5': '441aeeb82eb72c422c7f14ec533999cd',
-            'info_dict': {
-                'id': 'k2mm4bCdJ6CQ2i7c8o2',
-                'ext': 'mp4',
-                'title': 'Le Zap de Spi0n n°216 - Zapping du Web',
-                'description': 'md5:faf028e48a461b8b7fad38f1e104b119',
-                'uploader': 'Spi0n',
-                'uploader_id': 'xgditw',
-                'upload_date': '20140425',
-                'timestamp': 1398441542,
-            },
-            'add_ie': ['Dailymotion'],
-        },
-        # DailyMail embed
-        {
-            'url': 'http://www.bumm.sk/krimi/2017/07/05/biztonsagi-kamera-buktatta-le-az-agg-ferfit-utlegelo-apolot',
-            'info_dict': {
-                'id': '1495629',
-                'ext': 'mp4',
-                'title': 'Care worker punches elderly dementia patient in head 11 times',
-                'description': 'md5:3a743dee84e57e48ec68bf67113199a5',
-            },
-            'add_ie': ['DailyMail'],
-            'params': {
-                'skip_download': True,
-            },
-        },
-        # YouTube embed
-        {
-            'url': 'http://www.badzine.de/ansicht/datum/2014/06/09/so-funktioniert-die-neue-englische-badminton-liga.html',
-            'info_dict': {
-                'id': 'FXRb4ykk4S0',
-                'ext': 'mp4',
-                'title': 'The NBL Auction 2014',
-                'uploader': 'BADMINTON England',
-                'uploader_id': 'BADMINTONEvents',
-                'upload_date': '20140603',
-                'description': 'md5:9ef128a69f1e262a700ed83edb163a73',
-            },
-            'add_ie': ['Youtube'],
-            'params': {
-                'skip_download': True,
-            }
-        },
-        # MTVSercices embed
-        {
-            'url': 'http://www.vulture.com/2016/06/new-key-peele-sketches-released.html',
-            'md5': 'ca1aef97695ef2c1d6973256a57e5252',
-            'info_dict': {
-                'id': '769f7ec0-0692-4d62-9b45-0d88074bffc1',
-                'ext': 'mp4',
-                'title': 'Key and Peele|October 10, 2012|2|203|Liam Neesons - Uncensored',
-                'description': 'Two valets share their love for movie star Liam Neesons.',
-                'timestamp': 1349922600,
-                'upload_date': '20121011',
-            },
-        },
-        # YouTube embed via <data-embed-url="">
-        {
-            'url': 'https://play.google.com/store/apps/details?id=com.gameloft.android.ANMP.GloftA8HM',
-            'info_dict': {
-                'id': '4vAffPZIT44',
-                'ext': 'mp4',
-                'title': 'Asphalt 8: Airborne - Update - Welcome to Dubai!',
-                'uploader': 'Gameloft',
-                'uploader_id': 'gameloft',
-                'upload_date': '20140828',
-                'description': 'md5:c80da9ed3d83ae6d1876c834de03e1c4',
-            },
-            'params': {
-                'skip_download': True,
-            }
-        },
-        # YouTube <object> embed
-        {
-            'url': 'http://www.improbable.com/2017/04/03/untrained-modern-youths-and-ancient-masters-in-selfie-portraits/',
-            'md5': '516718101ec834f74318df76259fb3cc',
-            'info_dict': {
-                'id': 'msN87y-iEx0',
-                'ext': 'webm',
-                'title': 'Feynman: Mirrors FUN TO IMAGINE 6',
-                'upload_date': '20080526',
-                'description': 'md5:0ffc78ea3f01b2e2c247d5f8d1d3c18d',
-                'uploader': 'Christopher Sykes',
-                'uploader_id': 'ChristopherJSykes',
-            },
-            'add_ie': ['Youtube'],
-        },
-        # Camtasia studio
-        {
-            'url': 'http://www.ll.mit.edu/workshops/education/videocourses/antennas/lecture1/video/',
-            'playlist': [{
-                'md5': '0c5e352edabf715d762b0ad4e6d9ee67',
-                'info_dict': {
-                    'id': 'Fenn-AA_PA_Radar_Course_Lecture_1c_Final',
-                    'title': 'Fenn-AA_PA_Radar_Course_Lecture_1c_Final - video1',
-                    'ext': 'flv',
-                    'duration': 2235.90,
-                }
-            }, {
-                'md5': '10e4bb3aaca9fd630e273ff92d9f3c63',
-                'info_dict': {
-                    'id': 'Fenn-AA_PA_Radar_Course_Lecture_1c_Final_PIP',
-                    'title': 'Fenn-AA_PA_Radar_Course_Lecture_1c_Final - pip',
-                    'ext': 'flv',
-                    'duration': 2235.93,
-                }
-            }],
-            'info_dict': {
-                'title': 'Fenn-AA_PA_Radar_Course_Lecture_1c_Final',
-            }
-        },
-        # Flowplayer
-        {
-            'url': 'http://www.handjobhub.com/video/busty-blonde-siri-tit-fuck-while-wank-6313.html',
-            'md5': '9d65602bf31c6e20014319c7d07fba27',
-            'info_dict': {
-                'id': '5123ea6d5e5a7',
-                'ext': 'mp4',
-                'age_limit': 18,
-                'uploader': 'www.handjobhub.com',
-                'title': 'Busty Blonde Siri Tit Fuck While Wank at HandjobHub.com',
-            }
-        },
-        # Multiple brightcove videos
-        # https://github.com/rg3/youtube-dl/issues/2283
-        {
-            'url': 'http://www.newyorker.com/online/blogs/newsdesk/2014/01/always-never-nuclear-command-and-control.html',
-            'info_dict': {
-                'id': 'always-never',
-                'title': 'Always / Never - The New Yorker',
-            },
-            'playlist_count': 3,
-            'params': {
-                'extract_flat': False,
-                'skip_download': True,
-            }
-        },
-        # MLB embed
-        {
-            'url': 'http://umpire-empire.com/index.php/topic/58125-laz-decides-no-thats-low/',
-            'md5': '96f09a37e44da40dd083e12d9a683327',
-            'info_dict': {
-                'id': '33322633',
-                'ext': 'mp4',
-                'title': 'Ump changes call to ball',
-                'description': 'md5:71c11215384298a172a6dcb4c2e20685',
-                'duration': 48,
-                'timestamp': 1401537900,
-                'upload_date': '20140531',
-                'thumbnail': r're:^https?://.*\.jpg$',
-            },
-        },
-        # Wistia embed
-        {
-            'url': 'http://study.com/academy/lesson/north-american-exploration-failed-colonies-of-spain-france-england.html#lesson',
-            'md5': '1953f3a698ab51cfc948ed3992a0b7ff',
-            'info_dict': {
-                'id': '6e2wtrbdaf',
-                'ext': 'mov',
-                'title': 'paywall_north-american-exploration-failed-colonies-of-spain-france-england',
-                'description': 'a Paywall Videos video from Remilon',
-                'duration': 644.072,
-                'uploader': 'study.com',
-                'timestamp': 1459678540,
-                'upload_date': '20160403',
-                'filesize': 24687186,
-            },
-        },
-        {
-            'url': 'http://thoughtworks.wistia.com/medias/uxjb0lwrcz',
-            'md5': 'baf49c2baa8a7de5f3fc145a8506dcd4',
-            'info_dict': {
-                'id': 'uxjb0lwrcz',
-                'ext': 'mp4',
-                'title': 'Conversation about Hexagonal Rails Part 1',
-                'description': 'a Martin Fowler video from ThoughtWorks',
-                'duration': 1715.0,
-                'uploader': 'thoughtworks.wistia.com',
-                'timestamp': 1401832161,
-                'upload_date': '20140603',
-            },
-        },
-        # Wistia standard embed (async)
-        {
-            'url': 'https://www.getdrip.com/university/brennan-dunn-drip-workshop/',
-            'info_dict': {
-                'id': '807fafadvk',
-                'ext': 'mp4',
-                'title': 'Drip Brennan Dunn Workshop',
-                'description': 'a JV Webinars video from getdrip-1',
-                'duration': 4986.95,
-                'timestamp': 1463607249,
-                'upload_date': '20160518',
-            },
-            'params': {
-                'skip_download': True,
-            }
-        },
-        # Soundcloud embed
-        {
-            'url': 'http://nakedsecurity.sophos.com/2014/10/29/sscc-171-are-you-sure-that-1234-is-a-bad-password-podcast/',
-            'info_dict': {
-                'id': '174391317',
-                'ext': 'mp3',
-                'description': 'md5:ff867d6b555488ad3c52572bb33d432c',
-                'uploader': 'Sophos Security',
-                'title': 'Chet Chat 171 - Oct 29, 2014',
-                'upload_date': '20141029',
-            }
-        },
-        # Soundcloud multiple embeds
-        {
-            'url': 'http://www.guitarplayer.com/lessons/1014/legato-workout-one-hour-to-more-fluid-performance---tab/52809',
-            'info_dict': {
-                'id': '52809',
-                'title': 'Guitar Essentials: Legato Workout—One-Hour to Fluid Performance  | TAB + AUDIO',
-            },
-            'playlist_mincount': 7,
-        },
-        # TuneIn station embed
-        {
-            'url': 'http://radiocnrv.com/promouvoir-radio-cnrv/',
-            'info_dict': {
-                'id': '204146',
-                'ext': 'mp3',
-                'title': 'CNRV',
-                'location': 'Paris, France',
-                'is_live': True,
-            },
-            'params': {
-                # Live stream
-                'skip_download': True,
-            },
-        },
-        # Livestream embed
-        {
-            'url': 'http://www.esa.int/Our_Activities/Space_Science/Rosetta/Philae_comet_touch-down_webcast',
-            'info_dict': {
-                'id': '67864563',
-                'ext': 'flv',
-                'upload_date': '20141112',
-                'title': 'Rosetta #CometLanding webcast HL 10',
-            }
-        },
-        # Another Livestream embed, without 'new.' in URL
-        {
-            'url': 'https://www.freespeech.org/',
-            'info_dict': {
-                'id': '123537347',
-                'ext': 'mp4',
-                'title': 're:^FSTV [0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}$',
-            },
-            'params': {
-                # Live stream
-                'skip_download': True,
-            },
-        },
-        # LazyYT
-        {
-            'url': 'https://skiplagged.com/',
-            'info_dict': {
-                'id': 'skiplagged',
-                'title': 'Skiplagged: The smart way to find cheap flights',
-            },
-            'playlist_mincount': 1,
-            'add_ie': ['Youtube'],
-        },
-        # Cinchcast embed
-        {
-            'url': 'http://undergroundwellness.com/podcasts/306-5-steps-to-permanent-gut-healing/',
-            'info_dict': {
-                'id': '7141703',
-                'ext': 'mp3',
-                'upload_date': '20141126',
-                'title': 'Jack Tips: 5 Steps to Permanent Gut Healing',
-            }
-        },
-        # Cinerama player
-        {
-            'url': 'http://www.abc.net.au/7.30/content/2015/s4164797.htm',
-            'info_dict': {
-                'id': '730m_DandD_1901_512k',
-                'ext': 'mp4',
-                'uploader': 'www.abc.net.au',
-                'title': 'Game of Thrones with dice - Dungeons and Dragons fantasy role-playing game gets new life - 19/01/2015',
-            }
-        },
-        # embedded viddler video
-        {
-            'url': 'http://deadspin.com/i-cant-stop-watching-john-wall-chop-the-nuggets-with-th-1681801597',
-            'info_dict': {
-                'id': '4d03aad9',
-                'ext': 'mp4',
-                'uploader': 'deadspin',
-                'title': 'WALL-TO-GORTAT',
-                'timestamp': 1422285291,
-                'upload_date': '20150126',
-            },
-            'add_ie': ['Viddler'],
-        },
-        # Libsyn embed
-        {
-            'url': 'http://thedailyshow.cc.com/podcast/episodetwelve',
-            'info_dict': {
-                'id': '3377616',
-                'ext': 'mp3',
-                'title': "The Daily Show Podcast without Jon Stewart - Episode 12: Bassem Youssef: Egypt's Jon Stewart",
-                'description': 'md5:601cb790edd05908957dae8aaa866465',
-                'upload_date': '20150220',
-            },
-            'skip': 'All The Daily Show URLs now redirect to http://www.cc.com/shows/',
-        },
-        # jwplayer YouTube
-        {
-            'url': 'http://media.nationalarchives.gov.uk/index.php/webinar-using-discovery-national-archives-online-catalogue/',
-            'info_dict': {
-                'id': 'Mrj4DVp2zeA',
-                'ext': 'mp4',
-                'upload_date': '20150212',
-                'uploader': 'The National Archives UK',
-                'description': 'md5:8078af856dca76edc42910b61273dbbf',
-                'uploader_id': 'NationalArchives08',
-                'title': 'Webinar: Using Discovery, The National Archives’ online catalogue',
-            },
-        },
-        # jwplayer rtmp
-        {
-            'url': 'http://www.suffolk.edu/sjc/live.php',
-            'info_dict': {
-                'id': 'live',
-                'ext': 'flv',
-                'title': 'Massachusetts Supreme Judicial Court Oral Arguments',
-                'uploader': 'www.suffolk.edu',
-            },
-            'params': {
-                'skip_download': True,
-            },
-            'skip': 'Only has video a few mornings per month, see http://www.suffolk.edu/sjc/',
-        },
-        # Complex jwplayer
-        {
-            'url': 'http://www.indiedb.com/games/king-machine/videos',
-            'info_dict': {
-                'id': 'videos',
-                'ext': 'mp4',
-                'title': 'king machine trailer 1',
-                'description': 'Browse King Machine videos & audio for sweet media. Your eyes will thank you.',
-                'thumbnail': r're:^https?://.*\.jpg$',
-            },
-        },
-        {
-            # JWPlayer config passed as variable
-            'url': 'http://www.txxx.com/videos/3326530/ariele/',
-            'info_dict': {
-                'id': '3326530_hq',
-                'ext': 'mp4',
-                'title': 'ARIELE | Tube Cup',
-                'uploader': 'www.txxx.com',
-                'age_limit': 18,
-            },
-            'params': {
-                'skip_download': True,
-            }
-        },
-        {
-            # JWPlatform iframe
-            'url': 'https://www.mediaite.com/tv/dem-senator-claims-gary-cohn-faked-a-bad-connection-during-trump-call-to-get-him-off-the-phone/',
-            'md5': 'ca00a040364b5b439230e7ebfd02c4e9',
-            'info_dict': {
-                'id': 'O0c5JcKT',
-                'ext': 'mp4',
-                'upload_date': '20171122',
-                'timestamp': 1511366290,
-                'title': 'Dem Senator Claims Gary Cohn Faked a Bad Connection During Trump Call to Get Him Off the Phone',
-            },
-            'add_ie': [JWPlatformIE.ie_key()],
-        },
-        {
-            # Video.js embed, multiple formats
-            'url': 'http://ortcam.com/solidworks-урок-6-настройка-чертежа_33f9b7351.html',
-            'info_dict': {
-                'id': 'yygqldloqIk',
-                'ext': 'mp4',
-                'title': 'SolidWorks. Урок 6 Настройка чертежа',
-                'description': 'md5:baf95267792646afdbf030e4d06b2ab3',
-                'upload_date': '20130314',
-                'uploader': 'PROстое3D',
-                'uploader_id': 'PROstoe3D',
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            # Video.js embed, single format
-            'url': 'https://www.vooplayer.com/v3/watch/watch.php?v=NzgwNTg=',
-            'info_dict': {
-                'id': 'watch',
-                'ext': 'mp4',
-                'title': 'Step 1 -  Good Foundation',
-                'description': 'md5:d1e7ff33a29fc3eb1673d6c270d344f4',
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        # rtl.nl embed
-        {
-            'url': 'http://www.rtlnieuws.nl/nieuws/buitenland/aanslagen-kopenhagen',
-            'playlist_mincount': 5,
-            'info_dict': {
-                'id': 'aanslagen-kopenhagen',
-                'title': 'Aanslagen Kopenhagen',
-            }
-        },
-        # Zapiks embed
-        {
-            'url': 'http://www.skipass.com/news/116090-bon-appetit-s5ep3-baqueira-mi-cor.html',
-            'info_dict': {
-                'id': '118046',
-                'ext': 'mp4',
-                'title': 'EP3S5 - Bon Appétit - Baqueira Mi Corazon !',
-            }
-        },
-        # Kaltura embed (different embed code)
-        {
-            'url': 'http://www.premierchristianradio.com/Shows/Saturday/Unbelievable/Conference-Videos/Os-Guinness-Is-It-Fools-Talk-Unbelievable-Conference-2014',
-            'info_dict': {
-                'id': '1_a52wc67y',
-                'ext': 'flv',
-                'upload_date': '20150127',
-                'uploader_id': 'PremierMedia',
-                'timestamp': int,
-                'title': 'Os Guinness // Is It Fools Talk? // Unbelievable? Conference 2014',
-            },
-        },
-        # Kaltura embed with single quotes
-        {
-            'url': 'http://fod.infobase.com/p_ViewPlaylist.aspx?AssignmentID=NUN8ZY',
-            'info_dict': {
-                'id': '0_izeg5utt',
-                'ext': 'mp4',
-                'title': '35871',
-                'timestamp': 1355743100,
-                'upload_date': '20121217',
-                'uploader_id': 'cplapp@learn360.com',
-            },
-            'add_ie': ['Kaltura'],
-        },
-        {
-            # Kaltura embedded via quoted entry_id
-            'url': 'https://www.oreilly.com/ideas/my-cloud-makes-pretty-pictures',
-            'info_dict': {
-                'id': '0_utuok90b',
-                'ext': 'mp4',
-                'title': '06_matthew_brender_raj_dutt',
-                'timestamp': 1466638791,
-                'upload_date': '20160622',
-            },
-            'add_ie': ['Kaltura'],
-            'expected_warnings': [
-                'Could not send HEAD request'
-            ],
-            'params': {
-                'skip_download': True,
-            }
-        },
-        {
-            # Kaltura embedded, some fileExt broken (#11480)
-            'url': 'http://www.cornell.edu/video/nima-arkani-hamed-standard-models-of-particle-physics',
-            'info_dict': {
-                'id': '1_sgtvehim',
-                'ext': 'mp4',
-                'title': 'Our "Standard Models" of particle physics and cosmology',
-                'description': 'md5:67ea74807b8c4fea92a6f38d6d323861',
-                'timestamp': 1321158993,
-                'upload_date': '20111113',
-                'uploader_id': 'kps1',
-            },
-            'add_ie': ['Kaltura'],
-        },
-        {
-            # Kaltura iframe embed
-            'url': 'http://www.gsd.harvard.edu/event/i-m-pei-a-centennial-celebration/',
-            'md5': 'ae5ace8eb09dc1a35d03b579a9c2cc44',
-            'info_dict': {
-                'id': '0_f2cfbpwy',
-                'ext': 'mp4',
-                'title': 'I. M. Pei: A Centennial Celebration',
-                'description': 'md5:1db8f40c69edc46ca180ba30c567f37c',
-                'upload_date': '20170403',
-                'uploader_id': 'batchUser',
-                'timestamp': 1491232186,
-            },
-            'add_ie': ['Kaltura'],
-        },
-        {
-            # Kaltura iframe embed, more sophisticated
-            'url': 'http://www.cns.nyu.edu/~eero/math-tools/Videos/lecture-05sep2017.html',
-            'info_dict': {
-                'id': '1_9gzouybz',
-                'ext': 'mp4',
-                'title': 'lecture-05sep2017',
-                'description': 'md5:40f347d91fd4ba047e511c5321064b49',
-                'upload_date': '20170913',
-                'uploader_id': 'eps2',
-                'timestamp': 1505340777,
-            },
-            'params': {
-                'skip_download': True,
-            },
-            'add_ie': ['Kaltura'],
-        },
-        {
-            # meta twitter:player
-            'url': 'http://thechive.com/2017/12/08/all-i-want-for-christmas-is-more-twerk/',
-            'info_dict': {
-                'id': '0_01b42zps',
-                'ext': 'mp4',
-                'title': 'Main Twerk (Video)',
-                'upload_date': '20171208',
-                'uploader_id': 'sebastian.salinas@thechive.com',
-                'timestamp': 1512713057,
-            },
-            'params': {
-                'skip_download': True,
-            },
-            'add_ie': ['Kaltura'],
-        },
-        # referrer protected EaglePlatform embed
-        {
-            'url': 'https://tvrain.ru/lite/teleshow/kak_vse_nachinalos/namin-418921/',
-            'info_dict': {
-                'id': '582306',
-                'ext': 'mp4',
-                'title': 'Стас Намин: «Мы нарушили девственность Кремля»',
-                'thumbnail': r're:^https?://.*\.jpg$',
-                'duration': 3382,
-                'view_count': int,
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        # ClipYou (EaglePlatform) embed (custom URL)
-        {
-            'url': 'http://muz-tv.ru/play/7129/',
-            # Not checking MD5 as sometimes the direct HTTP link results in 404 and HLS is used
-            'info_dict': {
-                'id': '12820',
-                'ext': 'mp4',
-                'title': "'O Sole Mio",
-                'thumbnail': r're:^https?://.*\.jpg$',
-                'duration': 216,
-                'view_count': int,
-            },
-            'params': {
-                'skip_download': True,
-            },
-            'skip': 'This video is unavailable.',
-        },
-        # Pladform embed
-        {
-            'url': 'http://muz-tv.ru/kinozal/view/7400/',
-            'info_dict': {
-                'id': '100183293',
-                'ext': 'mp4',
-                'title': 'Тайны перевала Дятлова • 1 серия 2 часть',
-                'description': 'Документальный сериал-расследование одной из самых жутких тайн ХХ века',
-                'thumbnail': r're:^https?://.*\.jpg$',
-                'duration': 694,
-                'age_limit': 0,
-            },
-            'skip': 'HTTP Error 404: Not Found',
-        },
-        # Playwire embed
-        {
-            'url': 'http://www.cinemablend.com/new/First-Joe-Dirt-2-Trailer-Teaser-Stupid-Greatness-70874.html',
-            'info_dict': {
-                'id': '3519514',
-                'ext': 'mp4',
-                'title': 'Joe Dirt 2 Beautiful Loser Teaser Trailer',
-                'thumbnail': r're:^https?://.*\.png$',
-                'duration': 45.115,
-            },
-        },
-        # 5min embed
-        {
-            'url': 'http://techcrunch.com/video/facebook-creates-on-this-day-crunch-report/518726732/',
-            'md5': '4c6f127a30736b59b3e2c19234ee2bf7',
-            'info_dict': {
-                'id': '518726732',
-                'ext': 'mp4',
-                'title': 'Facebook Creates "On This Day" | Crunch Report',
-                'description': 'Amazon updates Fire TV line, Tesla\'s Model X spotted in the wild',
-                'timestamp': 1427237531,
-                'uploader': 'Crunch Report',
-                'upload_date': '20150324',
-            },
-            'params': {
-                # m3u8 download
-                'skip_download': True,
-            },
-        },
-        # Crooks and Liars embed
-        {
-            'url': 'http://crooksandliars.com/2015/04/fox-friends-says-protecting-atheists',
-            'info_dict': {
-                'id': '8RUoRhRi',
-                'ext': 'mp4',
-                'title': "Fox & Friends Says Protecting Atheists From Discrimination Is Anti-Christian!",
-                'description': 'md5:e1a46ad1650e3a5ec7196d432799127f',
-                'timestamp': 1428207000,
-                'upload_date': '20150405',
-                'uploader': 'Heather',
-            },
-        },
-        # Crooks and Liars external embed
-        {
-            'url': 'http://theothermccain.com/2010/02/02/video-proves-that-bill-kristol-has-been-watching-glenn-beck/comment-page-1/',
-            'info_dict': {
-                'id': 'MTE3MjUtMzQ2MzA',
-                'ext': 'mp4',
-                'title': 'md5:5e3662a81a4014d24c250d76d41a08d5',
-                'description': 'md5:9b8e9542d6c3c5de42d6451b7d780cec',
-                'timestamp': 1265032391,
-                'upload_date': '20100201',
-                'uploader': 'Heather',
-            },
-        },
-        # NBC Sports vplayer embed
-        {
-            'url': 'http://www.riderfans.com/forum/showthread.php?121827-Freeman&s=e98fa1ea6dc08e886b1678d35212494a',
-            'info_dict': {
-                'id': 'ln7x1qSThw4k',
-                'ext': 'flv',
-                'title': "PFT Live: New leader in the 'new-look' defense",
-                'description': 'md5:65a19b4bbfb3b0c0c5768bed1dfad74e',
-                'uploader': 'NBCU-SPORTS',
-                'upload_date': '20140107',
-                'timestamp': 1389118457,
-            },
-            'skip': 'Invalid Page URL',
-        },
-        # NBC News embed
-        {
-            'url': 'http://www.vulture.com/2016/06/letterman-couldnt-care-less-about-late-night.html',
-            'md5': '1aa589c675898ae6d37a17913cf68d66',
-            'info_dict': {
-                'id': 'x_dtl_oa_LettermanliftPR_160608',
-                'ext': 'mp4',
-                'title': 'David Letterman: A Preview',
-                'description': 'A preview of Tom Brokaw\'s interview with David Letterman as part of the On Assignment series powered by Dateline. Airs Sunday June 12 at 7/6c.',
-                'upload_date': '20160609',
-                'timestamp': 1465431544,
-                'uploader': 'NBCU-NEWS',
-            },
-        },
-        # UDN embed
-        {
-            'url': 'https://video.udn.com/news/300346',
-            'md5': 'fd2060e988c326991037b9aff9df21a6',
-            'info_dict': {
-                'id': '300346',
-                'ext': 'mp4',
-                'title': '中一中男師變性 全校師生力挺',
-                'thumbnail': r're:^https?://.*\.jpg$',
-            },
-            'params': {
-                # m3u8 download
-                'skip_download': True,
-            },
-            'expected_warnings': ['Failed to parse JSON Expecting value'],
-        },
-        # Brightcove URL in single quotes
-        {
-            'url': 'http://www.sportsnet.ca/baseball/mlb/sn-presents-russell-martin-world-citizen/',
-            'md5': '4ae374f1f8b91c889c4b9203c8c752af',
-            'info_dict': {
-                'id': '4255764656001',
-                'ext': 'mp4',
-                'title': 'SN Presents: Russell Martin, World Citizen',
-                'description': 'To understand why he was the Toronto Blue Jays’ top off-season priority is to appreciate his background and upbringing in Montreal, where he first developed his baseball skills. Written and narrated by Stephen Brunt.',
-                'uploader': 'Rogers Sportsnet',
-                'uploader_id': '1704050871',
-                'upload_date': '20150525',
-                'timestamp': 1432570283,
-            },
-        },
-        # OnionStudios embed
-        {
-            'url': 'http://www.clickhole.com/video/dont-understand-bitcoin-man-will-mumble-explanatio-2537',
-            'info_dict': {
-                'id': '2855',
-                'ext': 'mp4',
-                'title': 'Don’t Understand Bitcoin? This Man Will Mumble An Explanation At You',
-                'thumbnail': r're:^https?://.*\.jpe?g$',
-                'uploader': 'ClickHole',
-                'uploader_id': 'clickhole',
-            }
-        },
-        # SnagFilms embed
-        {
-            'url': 'http://whilewewatch.blogspot.ru/2012/06/whilewewatch-whilewewatch-gripping.html',
-            'info_dict': {
-                'id': '74849a00-85a9-11e1-9660-123139220831',
-                'ext': 'mp4',
-                'title': '#whilewewatch',
-            }
-        },
-        # AdobeTVVideo embed
-        {
-            'url': 'https://helpx.adobe.com/acrobat/how-to/new-experience-acrobat-dc.html?set=acrobat--get-started--essential-beginners',
-            'md5': '43662b577c018ad707a63766462b1e87',
-            'info_dict': {
-                'id': '2456',
-                'ext': 'mp4',
-                'title': 'New experience with Acrobat DC',
-                'description': 'New experience with Acrobat DC',
-                'duration': 248.667,
-            },
-        },
-        # BrightcoveInPageEmbed embed
-        {
-            'url': 'http://www.geekandsundry.com/tabletop-bonus-wils-final-thoughts-on-dread/',
-            'info_dict': {
-                'id': '4238694884001',
-                'ext': 'flv',
-                'title': 'Tabletop: Dread, Last Thoughts',
-                'description': 'Tabletop: Dread, Last Thoughts',
-                'duration': 51690,
-            },
-        },
-        # Brightcove embed, with no valid 'renditions' but valid 'IOSRenditions'
-        # This video can't be played in browsers if Flash disabled and UA set to iPhone, which is actually a false alarm
-        {
-            'url': 'https://dl.dropboxusercontent.com/u/29092637/interview.html',
-            'info_dict': {
-                'id': '4785848093001',
-                'ext': 'mp4',
-                'title': 'The Cardinal Pell Interview',
-                'description': 'Sky News Contributor Andrew Bolt interviews George Pell in Rome, following the Cardinal\'s evidence before the Royal Commission into Child Abuse. ',
-                'uploader': 'GlobeCast Australia - GlobeStream',
-                'uploader_id': '2733773828001',
-                'upload_date': '20160304',
-                'timestamp': 1457083087,
-            },
-            'params': {
-                # m3u8 downloads
-                'skip_download': True,
-            },
-        },
-        {
-            # Brightcove embed with whitespace around attribute names
-            'url': 'http://www.stack.com/video/3167554373001/learn-to-hit-open-three-pointers-with-damian-lillard-s-baseline-drift-drill',
-            'info_dict': {
-                'id': '3167554373001',
-                'ext': 'mp4',
-                'title': "Learn to Hit Open Three-Pointers With Damian Lillard's Baseline Drift Drill",
-                'description': 'md5:57bacb0e0f29349de4972bfda3191713',
-                'uploader_id': '1079349493',
-                'upload_date': '20140207',
-                'timestamp': 1391810548,
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        # Another form of arte.tv embed
-        {
-            'url': 'http://www.tv-replay.fr/redirection/09-04-16/arte-reportage-arte-11508975.html',
-            'md5': '850bfe45417ddf221288c88a0cffe2e2',
-            'info_dict': {
-                'id': '030273-562_PLUS7-F',
-                'ext': 'mp4',
-                'title': 'ARTE Reportage - Nulle part, en France',
-                'description': 'md5:e3a0e8868ed7303ed509b9e3af2b870d',
-                'upload_date': '20160409',
-            },
-        },
-        # LiveLeak embed
-        {
-            'url': 'http://www.wykop.pl/link/3088787/',
-            'md5': '7619da8c820e835bef21a1efa2a0fc71',
-            'info_dict': {
-                'id': '874_1459135191',
-                'ext': 'mp4',
-                'title': 'Man shows poor quality of new apartment building',
-                'description': 'The wall is like a sand pile.',
-                'uploader': 'Lake8737',
-            },
-            'add_ie': [LiveLeakIE.ie_key()],
-        },
-        # Another LiveLeak embed pattern (#13336)
-        {
-            'url': 'https://milo.yiannopoulos.net/2017/06/concealed-carry-robbery/',
-            'info_dict': {
-                'id': '2eb_1496309988',
-                'ext': 'mp4',
-                'title': 'Thief robs place where everyone was armed',
-                'description': 'md5:694d73ee79e535953cf2488562288eee',
-                'uploader': 'brazilwtf',
-            },
-            'add_ie': [LiveLeakIE.ie_key()],
-        },
-        # Duplicated embedded video URLs
-        {
-            'url': 'http://www.hudl.com/athlete/2538180/highlights/149298443',
-            'info_dict': {
-                'id': '149298443_480_16c25b74_2',
-                'ext': 'mp4',
-                'title': 'vs. Blue Orange Spring Game',
-                'uploader': 'www.hudl.com',
-            },
-        },
-        # twitter:player:stream embed
-        {
-            'url': 'http://www.rtl.be/info/video/589263.aspx?CategoryID=288',
-            'info_dict': {
-                'id': 'master',
-                'ext': 'mp4',
-                'title': 'Une nouvelle espèce de dinosaure découverte en Argentine',
-                'uploader': 'www.rtl.be',
-            },
-            'params': {
-                # m3u8 downloads
-                'skip_download': True,
-            },
-        },
-        # twitter:player embed
-        {
-            'url': 'http://www.theatlantic.com/video/index/484130/what-do-black-holes-sound-like/',
-            'md5': 'a3e0df96369831de324f0778e126653c',
-            'info_dict': {
-                'id': '4909620399001',
-                'ext': 'mp4',
-                'title': 'What Do Black Holes Sound Like?',
-                'description': 'what do black holes sound like',
-                'upload_date': '20160524',
-                'uploader_id': '29913724001',
-                'timestamp': 1464107587,
-                'uploader': 'TheAtlantic',
-            },
-            'add_ie': ['BrightcoveLegacy'],
-        },
-        # Facebook <iframe> embed
-        {
-            'url': 'https://www.hostblogger.de/blog/archives/6181-Auto-jagt-Betonmischer.html',
-            'md5': 'fbcde74f534176ecb015849146dd3aee',
-            'info_dict': {
-                'id': '599637780109885',
-                'ext': 'mp4',
-                'title': 'Facebook video #599637780109885',
-            },
-        },
-        # Facebook <iframe> embed, plugin video
-        {
-            'url': 'http://5pillarsuk.com/2017/06/07/tariq-ramadan-disagrees-with-pr-exercise-by-imams-refusing-funeral-prayers-for-london-attackers/',
-            'info_dict': {
-                'id': '1754168231264132',
-                'ext': 'mp4',
-                'title': 'About the Imams and Religious leaders refusing to perform funeral prayers for...',
-                'uploader': 'Tariq Ramadan (official)',
-                'timestamp': 1496758379,
-                'upload_date': '20170606',
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        # Facebook API embed
-        {
-            'url': 'http://www.lothype.com/blue-stars-2016-preview-standstill-full-show/',
-            'md5': 'a47372ee61b39a7b90287094d447d94e',
-            'info_dict': {
-                'id': '10153467542406923',
-                'ext': 'mp4',
-                'title': 'Facebook video #10153467542406923',
-            },
-        },
-        # Wordpress "YouTube Video Importer" plugin
-        {
-            'url': 'http://www.lothype.com/blue-devils-drumline-stanford-lot-2016/',
-            'md5': 'd16797741b560b485194eddda8121b48',
-            'info_dict': {
-                'id': 'HNTXWDXV9Is',
-                'ext': 'mp4',
-                'title': 'Blue Devils Drumline Stanford lot 2016',
-                'upload_date': '20160627',
-                'uploader_id': 'GENOCIDE8GENERAL10',
-                'uploader': 'cylus cyrus',
-            },
-        },
-        {
-            # video stored on custom kaltura server
-            'url': 'http://www.expansion.com/multimedia/videos.html?media=EQcM30NHIPv',
-            'md5': '537617d06e64dfed891fa1593c4b30cc',
-            'info_dict': {
-                'id': '0_1iotm5bh',
-                'ext': 'mp4',
-                'title': 'Elecciones británicas: 5 lecciones para Rajoy',
-                'description': 'md5:435a89d68b9760b92ce67ed227055f16',
-                'uploader_id': 'videos.expansion@el-mundo.net',
-                'upload_date': '20150429',
-                'timestamp': 1430303472,
-            },
-            'add_ie': ['Kaltura'],
-        },
-        {
-            # Non-standard Vimeo embed
-            'url': 'https://openclassrooms.com/courses/understanding-the-web',
-            'md5': '64d86f1c7d369afd9a78b38cbb88d80a',
-            'info_dict': {
-                'id': '148867247',
-                'ext': 'mp4',
-                'title': 'Understanding the web - Teaser',
-                'description': 'This is "Understanding the web - Teaser" by openclassrooms on Vimeo, the home for high quality videos and the people who love them.',
-                'upload_date': '20151214',
-                'uploader': 'OpenClassrooms',
-                'uploader_id': 'openclassrooms',
-            },
-            'add_ie': ['Vimeo'],
-        },
-        {
-            # generic vimeo embed that requires original URL passed as Referer
-            'url': 'http://racing4everyone.eu/2016/07/30/formula-1-2016-round12-germany/',
-            'only_matching': True,
-        },
-        {
-            'url': 'https://support.arkena.com/display/PLAY/Ways+to+embed+your+video',
-            'md5': 'b96f2f71b359a8ecd05ce4e1daa72365',
-            'info_dict': {
-                'id': 'b41dda37-d8e7-4d3f-b1b5-9a9db578bdfe',
-                'ext': 'mp4',
-                'title': 'Big Buck Bunny',
-                'description': 'Royalty free test video',
-                'timestamp': 1432816365,
-                'upload_date': '20150528',
-                'is_live': False,
-            },
-            'params': {
-                'skip_download': True,
-            },
-            'add_ie': [ArkenaIE.ie_key()],
-        },
-        {
-            'url': 'http://nova.bg/news/view/2016/08/16/156543/%D0%BD%D0%B0-%D0%BA%D0%BE%D1%81%D1%8A%D0%BC-%D0%BE%D1%82-%D0%B2%D0%B7%D1%80%D0%B8%D0%B2-%D0%BE%D1%82%D1%86%D0%B5%D0%BF%D0%B8%D1%85%D0%B0-%D1%86%D1%8F%D0%BB-%D0%BA%D0%B2%D0%B0%D1%80%D1%82%D0%B0%D0%BB-%D0%B7%D0%B0%D1%80%D0%B0%D0%B4%D0%B8-%D0%B8%D0%B7%D1%82%D0%B8%D1%87%D0%B0%D0%BD%D0%B5-%D0%BD%D0%B0-%D0%B3%D0%B0%D0%B7-%D0%B2-%D0%BF%D0%BB%D0%BE%D0%B2%D0%B4%D0%B8%D0%B2/',
-            'info_dict': {
-                'id': '1c7141f46c',
-                'ext': 'mp4',
-                'title': 'НА КОСЪМ ОТ ВЗРИВ: Изтичане на газ на бензиностанция в Пловдив',
-            },
-            'params': {
-                'skip_download': True,
-            },
-            'add_ie': [Vbox7IE.ie_key()],
-        },
-        {
-            # DBTV embeds
-            'url': 'http://www.dagbladet.no/2016/02/23/nyheter/nordlys/ski/troms/ver/43254897/',
-            'info_dict': {
-                'id': '43254897',
-                'title': 'Etter ett års planlegging, klaffet endelig alt: - Jeg måtte ta en liten dans',
-            },
-            'playlist_mincount': 3,
-        },
-        {
-            # Videa embeds
-            'url': 'http://forum.dvdtalk.com/movie-talk/623756-deleted-magic-star-wars-ot-deleted-alt-scenes-docu-style.html',
-            'info_dict': {
-                'id': '623756-deleted-magic-star-wars-ot-deleted-alt-scenes-docu-style',
-                'title': 'Deleted Magic - Star Wars: OT Deleted / Alt. Scenes Docu. Style - DVD Talk Forum',
-            },
-            'playlist_mincount': 2,
-        },
-        {
-            # 20 minuten embed
-            'url': 'http://www.20min.ch/schweiz/news/story/So-kommen-Sie-bei-Eis-und-Schnee-sicher-an-27032552',
-            'info_dict': {
-                'id': '523629',
-                'ext': 'mp4',
-                'title': 'So kommen Sie bei Eis und Schnee sicher an',
-                'description': 'md5:117c212f64b25e3d95747e5276863f7d',
-            },
-            'params': {
-                'skip_download': True,
-            },
-            'add_ie': [TwentyMinutenIE.ie_key()],
-        },
-        {
-            # VideoPress embed
-            'url': 'https://en.support.wordpress.com/videopress/',
-            'info_dict': {
-                'id': 'OcobLTqC',
-                'ext': 'm4v',
-                'title': 'IMG_5786',
-                'timestamp': 1435711927,
-                'upload_date': '20150701',
-            },
-            'params': {
-                'skip_download': True,
-            },
-            'add_ie': [VideoPressIE.ie_key()],
-        },
-        {
-            # Rutube embed
-            'url': 'http://magazzino.friday.ru/videos/vipuski/kazan-2',
-            'info_dict': {
-                'id': '9b3d5bee0a8740bf70dfd29d3ea43541',
-                'ext': 'flv',
-                'title': 'Магаззино: Казань 2',
-                'description': 'md5:99bccdfac2269f0e8fdbc4bbc9db184a',
-                'uploader': 'Магаззино',
-                'upload_date': '20170228',
-                'uploader_id': '996642',
-            },
-            'params': {
-                'skip_download': True,
-            },
-            'add_ie': [RutubeIE.ie_key()],
-        },
-        {
-            # ThePlatform embedded with whitespaces in URLs
-            'url': 'http://www.golfchannel.com/topics/shows/golftalkcentral.htm',
-            'only_matching': True,
-        },
-        {
-            # Senate ISVP iframe https
-            'url': 'https://www.hsgac.senate.gov/hearings/canadas-fast-track-refugee-plan-unanswered-questions-and-implications-for-us-national-security',
-            'md5': 'fb8c70b0b515e5037981a2492099aab8',
-            'info_dict': {
-                'id': 'govtaff020316',
-                'ext': 'mp4',
-                'title': 'Integrated Senate Video Player',
-            },
-            'add_ie': [SenateISVPIE.ie_key()],
-        },
-        {
-            # Limelight embeds (1 channel embed + 4 media embeds)
-            'url': 'http://www.sedona.com/FacilitatorTraining2017',
-            'info_dict': {
-                'id': 'FacilitatorTraining2017',
-                'title': 'Facilitator Training 2017',
-            },
-            'playlist_mincount': 5,
-        },
-        {
-            # Limelight embed (LimelightPlayerUtil.embed)
-            'url': 'https://tv5.ca/videos?v=xuu8qowr291ri',
-            'info_dict': {
-                'id': '95d035dc5c8a401588e9c0e6bd1e9c92',
-                'ext': 'mp4',
-                'title': '07448641',
-                'timestamp': 1499890639,
-                'upload_date': '20170712',
-            },
-            'params': {
-                'skip_download': True,
-            },
-            'add_ie': ['LimelightMedia'],
-        },
-        {
-            'url': 'http://kron4.com/2017/04/28/standoff-with-walnut-creek-murder-suspect-ends-with-arrest/',
-            'info_dict': {
-                'id': 'standoff-with-walnut-creek-murder-suspect-ends-with-arrest',
-                'title': 'Standoff with Walnut Creek murder suspect ends',
-                'description': 'md5:3ccc48a60fc9441eeccfc9c469ebf788',
-            },
-            'playlist_mincount': 4,
-        },
-        {
-            # WashingtonPost embed
-            'url': 'http://www.vanityfair.com/hollywood/2017/04/donald-trump-tv-pitches',
-            'info_dict': {
-                'id': '8caf6e88-d0ec-11e5-90d3-34c2c42653ac',
-                'ext': 'mp4',
-                'title': "No one has seen the drama series based on Trump's life \u2014 until now",
-                'description': 'Donald Trump wanted a weekly TV drama based on his life. It never aired. But The Washington Post recently obtained a scene from the pilot script — and enlisted actors.',
-                'timestamp': 1455216756,
-                'uploader': 'The Washington Post',
-                'upload_date': '20160211',
-            },
-            'add_ie': [WashingtonPostIE.ie_key()],
-        },
-        {
-            # Mediaset embed
-            'url': 'http://www.tgcom24.mediaset.it/politica/serracchiani-voglio-vivere-in-una-societa-aperta-reazioni-sproporzionate-_3071354-201702a.shtml',
-            'info_dict': {
-                'id': '720642',
-                'ext': 'mp4',
-                'title': 'Serracchiani: "Voglio vivere in una società aperta, con tutela del patto di fiducia"',
-            },
-            'params': {
-                'skip_download': True,
-            },
-            'add_ie': [MediasetIE.ie_key()],
-        },
-        {
-            # JOJ.sk embeds
-            'url': 'https://www.noviny.sk/slovensko/238543-slovenskom-sa-prehnala-vlna-silnych-burok',
-            'info_dict': {
-                'id': '238543-slovenskom-sa-prehnala-vlna-silnych-burok',
-                'title': 'Slovenskom sa prehnala vlna silných búrok',
-            },
-            'playlist_mincount': 5,
-            'add_ie': [JojIE.ie_key()],
-        },
-        {
-            # AMP embed (see https://www.ampproject.org/docs/reference/components/amp-video)
-            'url': 'https://tvrain.ru/amp/418921/',
-            'md5': 'cc00413936695987e8de148b67d14f1d',
-            'info_dict': {
-                'id': '418921',
-                'ext': 'mp4',
-                'title': 'Стас Намин: «Мы нарушили девственность Кремля»',
-            },
-        },
-        {
-            # vzaar embed
-            'url': 'http://help.vzaar.com/article/165-embedding-video',
-            'md5': '7e3919d9d2620b89e3e00bec7fe8c9d4',
-            'info_dict': {
-                'id': '8707641',
-                'ext': 'mp4',
-                'title': 'Building A Business Online: Principal Chairs Q & A',
-            },
-        },
-        {
-            # multiple HTML5 videos on one page
-            'url': 'https://www.paragon-software.com/home/rk-free/keyscenarios.html',
-            'info_dict': {
-                'id': 'keyscenarios',
-                'title': 'Rescue Kit 14 Free Edition - Getting started',
-            },
-            'playlist_count': 4,
-        },
-        {
-            # vshare embed
-            'url': 'https://youtube-dl-demo.neocities.org/vshare.html',
-            'md5': '17b39f55b5497ae8b59f5fbce8e35886',
-            'info_dict': {
-                'id': '0f64ce6',
-                'title': 'vl14062007715967',
-                'ext': 'mp4',
-            }
-        },
-        {
-            'url': 'http://www.heidelberg-laureate-forum.org/blog/video/lecture-friday-september-23-2016-sir-c-antony-r-hoare/',
-            'md5': 'aecd089f55b1cb5a59032cb049d3a356',
-            'info_dict': {
-                'id': '90227f51a80c4d8f86c345a7fa62bd9a1d',
-                'ext': 'mp4',
-                'title': 'Lecture: Friday, September 23, 2016 - Sir Tony Hoare',
-                'description': 'md5:5a51db84a62def7b7054df2ade403c6c',
-                'timestamp': 1474354800,
-                'upload_date': '20160920',
-            }
-        },
-        {
-            'url': 'http://www.kidzworld.com/article/30935-trolls-the-beat-goes-on-interview-skylar-astin-and-amanda-leighton',
-            'info_dict': {
-                'id': '1731611',
-                'ext': 'mp4',
-                'title': 'Official Trailer | TROLLS: THE BEAT GOES ON!',
-                'description': 'md5:eb5f23826a027ba95277d105f248b825',
-                'timestamp': 1516100691,
-                'upload_date': '20180116',
-            },
-            'params': {
-                'skip_download': True,
-            },
-            'add_ie': [SpringboardPlatformIE.ie_key()],
-        },
-        {
-            'url': 'https://www.youtube.com/shared?ci=1nEzmT-M4fU',
-            'info_dict': {
-                'id': 'uPDB5I9wfp8',
-                'ext': 'webm',
-                'title': 'Pocoyo: 90 minutos de episódios completos Português para crianças - PARTE 3',
-                'description': 'md5:d9e4d9346a2dfff4c7dc4c8cec0f546d',
-                'upload_date': '20160219',
-                'uploader': 'Pocoyo - Português (BR)',
-                'uploader_id': 'PocoyoBrazil',
-            },
-            'add_ie': [YoutubeIE.ie_key()],
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            'url': 'https://www.yapfiles.ru/show/1872528/690b05d3054d2dbe1e69523aa21bb3b1.mp4.html',
-            'info_dict': {
-                'id': 'vMDE4NzI1Mjgt690b',
-                'ext': 'mp4',
-                'title': 'Котята',
-            },
-            'add_ie': [YapFilesIE.ie_key()],
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            # CloudflareStream embed
-            'url': 'https://www.cloudflare.com/products/cloudflare-stream/',
-            'info_dict': {
-                'id': '31c9291ab41fac05471db4e73aa11717',
-                'ext': 'mp4',
-                'title': '31c9291ab41fac05471db4e73aa11717',
-            },
-            'add_ie': [CloudflareStreamIE.ie_key()],
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            # PeerTube embed
-            'url': 'https://joinpeertube.org/fr/home/',
-            'info_dict': {
-                'id': 'home',
-                'title': 'Reprenez le contrôle de vos vidéos ! #JoinPeertube',
-            },
-            'playlist_count': 2,
-        },
-        {
-            # Indavideo embed
-            'url': 'https://streetkitchen.hu/receptek/igy_kell_otthon_hamburgert_sutni/',
-            'info_dict': {
-                'id': '1693903',
-                'ext': 'mp4',
-                'title': 'Így kell otthon hamburgert sütni',
-                'description': 'md5:f5a730ecf900a5c852e1e00540bbb0f7',
-                'timestamp': 1426330212,
-                'upload_date': '20150314',
-                'uploader': 'StreetKitchen',
-                'uploader_id': '546363',
-            },
-            'add_ie': [IndavideoEmbedIE.ie_key()],
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            # APA embed via JWPlatform embed
-            'url': 'http://www.vol.at/blue-man-group/5593454',
-            'info_dict': {
-                'id': 'jjv85FdZ',
-                'ext': 'mp4',
-                'title': '"Blau ist mysteriös": Die Blue Man Group im Interview',
-                'description': 'md5:d41d8cd98f00b204e9800998ecf8427e',
-                'thumbnail': r're:^https?://.*\.jpg$',
-                'duration': 254,
-                'timestamp': 1519211149,
-                'upload_date': '20180221',
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            'url': 'http://share-videos.se/auto/video/83645793?uid=13',
-            'md5': 'b68d276de422ab07ee1d49388103f457',
-            'info_dict': {
-                'id': '83645793',
-                'title': 'Lock up and get excited',
-                'ext': 'mp4'
-            },
-            'skip': 'TODO: fix nested playlists processing in tests',
-        },
-        # {
-        #     # TODO: find another test
-        #     # http://schema.org/VideoObject
-        #     'url': 'https://flipagram.com/f/nyvTSJMKId',
-        #     'md5': '888dcf08b7ea671381f00fab74692755',
-        #     'info_dict': {
-        #         'id': 'nyvTSJMKId',
-        #         'ext': 'mp4',
-        #         'title': 'Flipagram by sjuria101 featuring Midnight Memories by One Direction',
-        #         'description': '#love for cats.',
-        #         'timestamp': 1461244995,
-        #         'upload_date': '20160421',
-        #     },
-        #     'params': {
-        #         'force_generic_extractor': True,
-        #     },
-        # }
-    ]
-
-    def report_following_redirect(self, new_url):
-        """Report information extraction."""
-        self._downloader.to_screen('[redirect] Following redirect to %s' % new_url)
-
-    def _extract_rss(self, url, video_id, doc):
-        playlist_title = doc.find('./channel/title').text
-        playlist_desc_el = doc.find('./channel/description')
-        playlist_desc = None if playlist_desc_el is None else playlist_desc_el.text
-
-        entries = []
-        for it in doc.findall('./channel/item'):
-            next_url = None
-            enclosure_nodes = it.findall('./enclosure')
-            for e in enclosure_nodes:
-                next_url = e.attrib.get('url')
-                if next_url:
-                    break
-
-            if not next_url:
-                next_url = xpath_text(it, 'link', fatal=False)
-
-            if not next_url:
-                continue
-
-            entries.append({
-                '_type': 'url_transparent',
-                'url': next_url,
-                'title': it.find('title').text,
-            })
-
-        return {
-            '_type': 'playlist',
-            'id': url,
-            'title': playlist_title,
-            'description': playlist_desc,
-            'entries': entries,
-        }
-
-    def _extract_camtasia(self, url, video_id, webpage):
-        """ Returns None if no camtasia video can be found. """
-
-        camtasia_cfg = self._search_regex(
-            r'fo\.addVariable\(\s*"csConfigFile",\s*"([^"]+)"\s*\);',
-            webpage, 'camtasia configuration file', default=None)
-        if camtasia_cfg is None:
-            return None
-
-        title = self._html_search_meta('DC.title', webpage, fatal=True)
-
-        camtasia_url = compat_urlparse.urljoin(url, camtasia_cfg)
-        camtasia_cfg = self._download_xml(
-            camtasia_url, video_id,
-            note='Downloading camtasia configuration',
-            errnote='Failed to download camtasia configuration')
-        fileset_node = camtasia_cfg.find('./playlist/array/fileset')
-
-        entries = []
-        for n in fileset_node.getchildren():
-            url_n = n.find('./uri')
-            if url_n is None:
-                continue
-
-            entries.append({
-                'id': os.path.splitext(url_n.text.rpartition('/')[2])[0],
-                'title': '%s - %s' % (title, n.tag),
-                'url': compat_urlparse.urljoin(url, url_n.text),
-                'duration': float_or_none(n.find('./duration').text),
-            })
-
-        return {
-            '_type': 'playlist',
-            'entries': entries,
-            'title': title,
-        }
-
-    def _real_extract(self, url):
-        if url.startswith('//'):
-            return {
-                '_type': 'url',
-                'url': self.http_scheme() + url,
-            }
-
-        parsed_url = compat_urlparse.urlparse(url)
-        if not parsed_url.scheme:
-            default_search = self._downloader.params.get('default_search')
-            if default_search is None:
-                default_search = 'fixup_error'
-
-            if default_search in ('auto', 'auto_warning', 'fixup_error'):
-                if '/' in url:
-                    self._downloader.report_warning('The url doesn\'t specify the protocol, trying with http')
-                    return self.url_result('http://' + url)
-                elif default_search != 'fixup_error':
-                    if default_search == 'auto_warning':
-                        if re.match(r'^(?:url|URL)$', url):
-                            raise ExtractorError(
-                                'Invalid URL:  %r . Call youtube-dl like this:  youtube-dl -v "https://www.youtube.com/watch?v=BaW_jenozKc"  ' % url,
-                                expected=True)
-                        else:
-                            self._downloader.report_warning(
-                                'Falling back to youtube search for  %s . Set --default-search "auto" to suppress this warning.' % url)
-                    return self.url_result('ytsearch:' + url)
-
-            if default_search in ('error', 'fixup_error'):
-                raise ExtractorError(
-                    '%r is not a valid URL. '
-                    'Set --default-search "ytsearch" (or run  youtube-dl "ytsearch:%s" ) to search YouTube'
-                    % (url, url), expected=True)
-            else:
-                if ':' not in default_search:
-                    default_search += ':'
-                return self.url_result(default_search + url)
-
-        url, smuggled_data = unsmuggle_url(url)
-        force_videoid = None
-        is_intentional = smuggled_data and smuggled_data.get('to_generic')
-        if smuggled_data and 'force_videoid' in smuggled_data:
-            force_videoid = smuggled_data['force_videoid']
-            video_id = force_videoid
-        else:
-            video_id = self._generic_id(url)
-
-        self.to_screen('%s: Requesting header' % video_id)
-
-        head_req = HEADRequest(url)
-        head_response = self._request_webpage(
-            head_req, video_id,
-            note=False, errnote='Could not send HEAD request to %s' % url,
-            fatal=False)
-
-        if head_response is not False:
-            # Check for redirect
-            new_url = compat_str(head_response.geturl())
-            if url != new_url:
-                self.report_following_redirect(new_url)
-                if force_videoid:
-                    new_url = smuggle_url(
-                        new_url, {'force_videoid': force_videoid})
-                return self.url_result(new_url)
-
-        full_response = None
-        if head_response is False:
-            request = sanitized_Request(url)
-            request.add_header('Accept-Encoding', '*')
-            full_response = self._request_webpage(request, video_id)
-            head_response = full_response
-
-        info_dict = {
-            'id': video_id,
-            'title': self._generic_title(url),
-            'upload_date': unified_strdate(head_response.headers.get('Last-Modified'))
-        }
-
-        # Check for direct link to a video
-        content_type = head_response.headers.get('Content-Type', '').lower()
-        m = re.match(r'^(?P<type>audio|video|application(?=/(?:ogg$|(?:vnd\.apple\.|x-)?mpegurl)))/(?P<format_id>[^;\s]+)', content_type)
-        if m:
-            format_id = compat_str(m.group('format_id'))
-            if format_id.endswith('mpegurl'):
-                formats = self._extract_m3u8_formats(url, video_id, 'mp4')
-            elif format_id == 'f4m':
-                formats = self._extract_f4m_formats(url, video_id)
-            else:
-                formats = [{
-                    'format_id': format_id,
-                    'url': url,
-                    'vcodec': 'none' if m.group('type') == 'audio' else None
-                }]
-                info_dict['direct'] = True
-            self._sort_formats(formats)
-            info_dict['formats'] = formats
-            return info_dict
-
-        if not self._downloader.params.get('test', False) and not is_intentional:
-            force = self._downloader.params.get('force_generic_extractor', False)
-            self._downloader.report_warning(
-                '%s on generic information extractor.' % ('Forcing' if force else 'Falling back'))
-
-        if not full_response:
-            request = sanitized_Request(url)
-            # Some webservers may serve compressed content of rather big size (e.g. gzipped flac)
-            # making it impossible to download only chunk of the file (yet we need only 512kB to
-            # test whether it's HTML or not). According to youtube-dl default Accept-Encoding
-            # that will always result in downloading the whole file that is not desirable.
-            # Therefore for extraction pass we have to override Accept-Encoding to any in order
-            # to accept raw bytes and being able to download only a chunk.
-            # It may probably better to solve this by checking Content-Type for application/octet-stream
-            # after HEAD request finishes, but not sure if we can rely on this.
-            request.add_header('Accept-Encoding', '*')
-            full_response = self._request_webpage(request, video_id)
-
-        first_bytes = full_response.read(512)
-
-        # Is it an M3U playlist?
-        if first_bytes.startswith(b'#EXTM3U'):
-            info_dict['formats'] = self._extract_m3u8_formats(url, video_id, 'mp4')
-            self._sort_formats(info_dict['formats'])
-            return info_dict
-
-        # Maybe it's a direct link to a video?
-        # Be careful not to download the whole thing!
-        if not is_html(first_bytes):
-            self._downloader.report_warning(
-                'URL could be a direct video link, returning it as such.')
-            info_dict.update({
-                'direct': True,
-                'url': url,
-            })
-            return info_dict
-
-        webpage = self._webpage_read_content(
-            full_response, url, video_id, prefix=first_bytes)
-
-        self.report_extraction(video_id)
-
-        # Is it an RSS feed, a SMIL file, an XSPF playlist or a MPD manifest?
-        try:
-            doc = compat_etree_fromstring(webpage.encode('utf-8'))
-            if doc.tag == 'rss':
-                return self._extract_rss(url, video_id, doc)
-            elif doc.tag == 'SmoothStreamingMedia':
-                info_dict['formats'] = self._parse_ism_formats(doc, url)
-                self._sort_formats(info_dict['formats'])
-                return info_dict
-            elif re.match(r'^(?:{[^}]+})?smil$', doc.tag):
-                smil = self._parse_smil(doc, url, video_id)
-                self._sort_formats(smil['formats'])
-                return smil
-            elif doc.tag == '{http://xspf.org/ns/0/}playlist':
-                return self.playlist_result(
-                    self._parse_xspf(
-                        doc, video_id, xspf_url=url,
-                        xspf_base_url=compat_str(full_response.geturl())),
-                    video_id)
-            elif re.match(r'(?i)^(?:{[^}]+})?MPD$', doc.tag):
-                info_dict['formats'] = self._parse_mpd_formats(
-                    doc,
-                    mpd_base_url=compat_str(full_response.geturl()).rpartition('/')[0],
-                    mpd_url=url)
-                self._sort_formats(info_dict['formats'])
-                return info_dict
-            elif re.match(r'^{http://ns\.adobe\.com/f4m/[12]\.0}manifest$', doc.tag):
-                info_dict['formats'] = self._parse_f4m_formats(doc, url, video_id)
-                self._sort_formats(info_dict['formats'])
-                return info_dict
-        except compat_xml_parse_error:
-            pass
-
-        # Is it a Camtasia project?
-        camtasia_res = self._extract_camtasia(url, video_id, webpage)
-        if camtasia_res is not None:
-            return camtasia_res
-
-        # Sometimes embedded video player is hidden behind percent encoding
-        # (e.g. https://github.com/rg3/youtube-dl/issues/2448)
-        # Unescaping the whole page allows to handle those cases in a generic way
-        webpage = compat_urllib_parse_unquote(webpage)
-
-        # it's tempting to parse this further, but you would
-        # have to take into account all the variations like
-        #   Video Title - Site Name
-        #   Site Name | Video Title
-        #   Video Title - Tagline | Site Name
-        # and so on and so forth; it's just not practical
-        video_title = self._og_search_title(
-            webpage, default=None) or self._html_search_regex(
-            r'(?s)<title>(.*?)</title>', webpage, 'video title',
-            default='video')
-
-        # Try to detect age limit automatically
-        age_limit = self._rta_search(webpage)
-        # And then there are the jokers who advertise that they use RTA,
-        # but actually don't.
-        AGE_LIMIT_MARKERS = [
-            r'Proudly Labeled <a href="http://www\.rtalabel\.org/" title="Restricted to Adults">RTA</a>',
-        ]
-        if any(re.search(marker, webpage) for marker in AGE_LIMIT_MARKERS):
-            age_limit = 18
-
-        # video uploader is domain name
-        video_uploader = self._search_regex(
-            r'^(?:https?://)?([^/]*)/.*', url, 'video uploader')
-
-        video_description = self._og_search_description(webpage, default=None)
-        video_thumbnail = self._og_search_thumbnail(webpage, default=None)
-
-        info_dict.update({
-            'title': video_title,
-            'description': video_description,
-            'thumbnail': video_thumbnail,
-            'age_limit': age_limit,
-        })
-
-        # Look for Brightcove Legacy Studio embeds
-        bc_urls = BrightcoveLegacyIE._extract_brightcove_urls(webpage)
-        if bc_urls:
-            entries = [{
-                '_type': 'url',
-                'url': smuggle_url(bc_url, {'Referer': url}),
-                'ie_key': 'BrightcoveLegacy'
-            } for bc_url in bc_urls]
-
-            return {
-                '_type': 'playlist',
-                'title': video_title,
-                'id': video_id,
-                'entries': entries,
-            }
-
-        # Look for Brightcove New Studio embeds
-        bc_urls = BrightcoveNewIE._extract_urls(self, webpage)
-        if bc_urls:
-            return self.playlist_from_matches(
-                bc_urls, video_id, video_title,
-                getter=lambda x: smuggle_url(x, {'referrer': url}),
-                ie='BrightcoveNew')
-
-        # Look for Nexx embeds
-        nexx_urls = NexxIE._extract_urls(webpage)
-        if nexx_urls:
-            return self.playlist_from_matches(nexx_urls, video_id, video_title, ie=NexxIE.ie_key())
-
-        # Look for Nexx iFrame embeds
-        nexx_embed_urls = NexxEmbedIE._extract_urls(webpage)
-        if nexx_embed_urls:
-            return self.playlist_from_matches(nexx_embed_urls, video_id, video_title, ie=NexxEmbedIE.ie_key())
-
-        # Look for ThePlatform embeds
-        tp_urls = ThePlatformIE._extract_urls(webpage)
-        if tp_urls:
-            return self.playlist_from_matches(tp_urls, video_id, video_title, ie='ThePlatform')
-
-        # Look for Vessel embeds
-        vessel_urls = VesselIE._extract_urls(webpage)
-        if vessel_urls:
-            return self.playlist_from_matches(vessel_urls, video_id, video_title, ie=VesselIE.ie_key())
-
-        # Look for embedded rtl.nl player
-        matches = re.findall(
-            r'<iframe[^>]+?src="((?:https?:)?//(?:(?:www|static)\.)?rtl\.nl/(?:system/videoplayer/[^"]+(?:video_)?)?embed[^"]+)"',
-            webpage)
-        if matches:
-            return self.playlist_from_matches(matches, video_id, video_title, ie='RtlNl')
-
-        vimeo_urls = VimeoIE._extract_urls(url, webpage)
-        if vimeo_urls:
-            return self.playlist_from_matches(vimeo_urls, video_id, video_title, ie=VimeoIE.ie_key())
-
-        vid_me_embed_url = self._search_regex(
-            r'src=[\'"](https?://vid\.me/[^\'"]+)[\'"]',
-            webpage, 'vid.me embed', default=None)
-        if vid_me_embed_url is not None:
-            return self.url_result(vid_me_embed_url, 'Vidme')
-
-        # Look for YouTube embeds
-        youtube_urls = YoutubeIE._extract_urls(webpage)
-        if youtube_urls:
-            return self.playlist_from_matches(
-                youtube_urls, video_id, video_title, ie=YoutubeIE.ie_key())
-
-        matches = DailymotionIE._extract_urls(webpage)
-        if matches:
-            return self.playlist_from_matches(matches, video_id, video_title)
-
-        # Look for embedded Dailymotion playlist player (#3822)
-        m = re.search(
-            r'<iframe[^>]+?src=(["\'])(?P<url>(?:https?:)?//(?:www\.)?dailymotion\.[a-z]{2,3}/widget/jukebox\?.+?)\1', webpage)
-        if m:
-            playlists = re.findall(
-                r'list\[\]=/playlist/([^/]+)/', unescapeHTML(m.group('url')))
-            if playlists:
-                return self.playlist_from_matches(
-                    playlists, video_id, video_title, lambda p: '//dailymotion.com/playlist/%s' % p)
-
-        # Look for DailyMail embeds
-        dailymail_urls = DailyMailIE._extract_urls(webpage)
-        if dailymail_urls:
-            return self.playlist_from_matches(
-                dailymail_urls, video_id, video_title, ie=DailyMailIE.ie_key())
-
-        # Look for embedded Wistia player
-        wistia_url = WistiaIE._extract_url(webpage)
-        if wistia_url:
-            return {
-                '_type': 'url_transparent',
-                'url': self._proto_relative_url(wistia_url),
-                'ie_key': WistiaIE.ie_key(),
-                'uploader': video_uploader,
-            }
-
-        # Look for SVT player
-        svt_url = SVTIE._extract_url(webpage)
-        if svt_url:
-            return self.url_result(svt_url, 'SVT')
-
-        # Look for Bandcamp pages with custom domain
-        mobj = re.search(r'<meta property="og:url"[^>]*?content="(.*?bandcamp\.com.*?)"', webpage)
-        if mobj is not None:
-            burl = unescapeHTML(mobj.group(1))
-            # Don't set the extractor because it can be a track url or an album
-            return self.url_result(burl)
-
-        # Look for embedded Vevo player
-        mobj = re.search(
-            r'<iframe[^>]+?src=(["\'])(?P<url>(?:https?:)?//(?:cache\.)?vevo\.com/.+?)\1', webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group('url'))
-
-        # Look for embedded Viddler player
-        mobj = re.search(
-            r'<(?:iframe[^>]+?src|param[^>]+?value)=(["\'])(?P<url>(?:https?:)?//(?:www\.)?viddler\.com/(?:embed|player)/.+?)\1',
-            webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group('url'))
-
-        # Look for NYTimes player
-        mobj = re.search(
-            r'<iframe[^>]+src=(["\'])(?P<url>(?:https?:)?//graphics8\.nytimes\.com/bcvideo/[^/]+/iframe/embed\.html.+?)\1>',
-            webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group('url'))
-
-        # Look for Libsyn player
-        mobj = re.search(
-            r'<iframe[^>]+src=(["\'])(?P<url>(?:https?:)?//html5-player\.libsyn\.com/embed/.+?)\1', webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group('url'))
-
-        # Look for Ooyala videos
-        mobj = (re.search(r'player\.ooyala\.com/[^"?]+[?#][^"]*?(?:embedCode|ec)=(?P<ec>[^"&]+)', webpage) or
-                re.search(r'OO\.Player\.create\([\'"].*?[\'"],\s*[\'"](?P<ec>.{32})[\'"]', webpage) or
-                re.search(r'OO\.Player\.create\.apply\(\s*OO\.Player\s*,\s*op\(\s*\[\s*[\'"][^\'"]*[\'"]\s*,\s*[\'"](?P<ec>.{32})[\'"]', webpage) or
-                re.search(r'SBN\.VideoLinkset\.ooyala\([\'"](?P<ec>.{32})[\'"]\)', webpage) or
-                re.search(r'data-ooyala-video-id\s*=\s*[\'"](?P<ec>.{32})[\'"]', webpage))
-        if mobj is not None:
-            embed_token = self._search_regex(
-                r'embedToken[\'"]?\s*:\s*[\'"]([^\'"]+)',
-                webpage, 'ooyala embed token', default=None)
-            return OoyalaIE._build_url_result(smuggle_url(
-                mobj.group('ec'), {
-                    'domain': url,
-                    'embed_token': embed_token,
-                }))
-
-        # Look for multiple Ooyala embeds on SBN network websites
-        mobj = re.search(r'SBN\.VideoLinkset\.entryGroup\((\[.*?\])', webpage)
-        if mobj is not None:
-            embeds = self._parse_json(mobj.group(1), video_id, fatal=False)
-            if embeds:
-                return self.playlist_from_matches(
-                    embeds, video_id, video_title,
-                    getter=lambda v: OoyalaIE._url_for_embed_code(smuggle_url(v['provider_video_id'], {'domain': url})), ie='Ooyala')
-
-        # Look for Aparat videos
-        mobj = re.search(r'<iframe .*?src="(http://www\.aparat\.com/video/[^"]+)"', webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group(1), 'Aparat')
-
-        # Look for MPORA videos
-        mobj = re.search(r'<iframe .*?src="(http://mpora\.(?:com|de)/videos/[^"]+)"', webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group(1), 'Mpora')
-
-        # Look for embedded NovaMov-based player
-        mobj = re.search(
-            r'''(?x)<(?:pagespeed_)?iframe[^>]+?src=(["\'])
-                    (?P<url>http://(?:(?:embed|www)\.)?
-                        (?:novamov\.com|
-                           nowvideo\.(?:ch|sx|eu|at|ag|co)|
-                           videoweed\.(?:es|com)|
-                           movshare\.(?:net|sx|ag)|
-                           divxstage\.(?:eu|net|ch|co|at|ag))
-                        /embed\.php.+?)\1''', webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group('url'))
-
-        # Look for embedded Facebook player
-        facebook_urls = FacebookIE._extract_urls(webpage)
-        if facebook_urls:
-            return self.playlist_from_matches(facebook_urls, video_id, video_title)
-
-        # Look for embedded VK player
-        mobj = re.search(r'<iframe[^>]+?src=(["\'])(?P<url>https?://vk\.com/video_ext\.php.+?)\1', webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group('url'), 'VK')
-
-        # Look for embedded Odnoklassniki player
-        mobj = re.search(r'<iframe[^>]+?src=(["\'])(?P<url>https?://(?:odnoklassniki|ok)\.ru/videoembed/.+?)\1', webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group('url'), 'Odnoklassniki')
-
-        # Look for embedded ivi player
-        mobj = re.search(r'<embed[^>]+?src=(["\'])(?P<url>https?://(?:www\.)?ivi\.ru/video/player.+?)\1', webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group('url'), 'Ivi')
-
-        # Look for embedded Huffington Post player
-        mobj = re.search(
-            r'<iframe[^>]+?src=(["\'])(?P<url>https?://embed\.live\.huffingtonpost\.com/.+?)\1', webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group('url'), 'HuffPost')
-
-        # Look for embed.ly
-        mobj = re.search(r'class=["\']embedly-card["\'][^>]href=["\'](?P<url>[^"\']+)', webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group('url'))
-        mobj = re.search(r'class=["\']embedly-embed["\'][^>]src=["\'][^"\']*url=(?P<url>[^&]+)', webpage)
-        if mobj is not None:
-            return self.url_result(compat_urllib_parse_unquote(mobj.group('url')))
-
-        # Look for funnyordie embed
-        matches = re.findall(r'<iframe[^>]+?src="(https?://(?:www\.)?funnyordie\.com/embed/[^"]+)"', webpage)
-        if matches:
-            return self.playlist_from_matches(
-                matches, video_id, video_title, getter=unescapeHTML, ie='FunnyOrDie')
-
-        # Look for BBC iPlayer embed
-        matches = re.findall(r'setPlaylist\("(https?://www\.bbc\.co\.uk/iplayer/[^/]+/[\da-z]{8})"\)', webpage)
-        if matches:
-            return self.playlist_from_matches(matches, video_id, video_title, ie='BBCCoUk')
-
-        # Look for embedded RUTV player
-        rutv_url = RUTVIE._extract_url(webpage)
-        if rutv_url:
-            return self.url_result(rutv_url, 'RUTV')
-
-        # Look for embedded TVC player
-        tvc_url = TVCIE._extract_url(webpage)
-        if tvc_url:
-            return self.url_result(tvc_url, 'TVC')
-
-        # Look for embedded SportBox player
-        sportbox_urls = SportBoxEmbedIE._extract_urls(webpage)
-        if sportbox_urls:
-            return self.playlist_from_matches(sportbox_urls, video_id, video_title, ie='SportBoxEmbed')
-
-        # Look for embedded XHamster player
-        xhamster_urls = XHamsterEmbedIE._extract_urls(webpage)
-        if xhamster_urls:
-            return self.playlist_from_matches(xhamster_urls, video_id, video_title, ie='XHamsterEmbed')
-
-        # Look for embedded TNAFlixNetwork player
-        tnaflix_urls = TNAFlixNetworkEmbedIE._extract_urls(webpage)
-        if tnaflix_urls:
-            return self.playlist_from_matches(tnaflix_urls, video_id, video_title, ie=TNAFlixNetworkEmbedIE.ie_key())
-
-        # Look for embedded PornHub player
-        pornhub_urls = PornHubIE._extract_urls(webpage)
-        if pornhub_urls:
-            return self.playlist_from_matches(pornhub_urls, video_id, video_title, ie=PornHubIE.ie_key())
-
-        # Look for embedded DrTuber player
-        drtuber_urls = DrTuberIE._extract_urls(webpage)
-        if drtuber_urls:
-            return self.playlist_from_matches(drtuber_urls, video_id, video_title, ie=DrTuberIE.ie_key())
-
-        # Look for embedded RedTube player
-        redtube_urls = RedTubeIE._extract_urls(webpage)
-        if redtube_urls:
-            return self.playlist_from_matches(redtube_urls, video_id, video_title, ie=RedTubeIE.ie_key())
-
-        # Look for embedded Tube8 player
-        tube8_urls = Tube8IE._extract_urls(webpage)
-        if tube8_urls:
-            return self.playlist_from_matches(tube8_urls, video_id, video_title, ie=Tube8IE.ie_key())
-
-        # Look for embedded Tvigle player
-        mobj = re.search(
-            r'<iframe[^>]+?src=(["\'])(?P<url>(?:https?:)?//cloud\.tvigle\.ru/video/.+?)\1', webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group('url'), 'Tvigle')
-
-        # Look for embedded TED player
-        mobj = re.search(
-            r'<iframe[^>]+?src=(["\'])(?P<url>https?://embed(?:-ssl)?\.ted\.com/.+?)\1', webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group('url'), 'TED')
-
-        # Look for embedded Ustream videos
-        ustream_url = UstreamIE._extract_url(webpage)
-        if ustream_url:
-            return self.url_result(ustream_url, UstreamIE.ie_key())
-
-        # Look for embedded arte.tv player
-        mobj = re.search(
-            r'<(?:script|iframe) [^>]*?src="(?P<url>http://www\.arte\.tv/(?:playerv2/embed|arte_vp/index)[^"]+)"',
-            webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group('url'), 'ArteTVEmbed')
-
-        # Look for embedded francetv player
-        mobj = re.search(
-            r'<iframe[^>]+?src=(["\'])(?P<url>(?:https?://)?embed\.francetv\.fr/\?ue=.+?)\1',
-            webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group('url'))
-
-        # Look for embedded smotri.com player
-        smotri_url = SmotriIE._extract_url(webpage)
-        if smotri_url:
-            return self.url_result(smotri_url, 'Smotri')
-
-        # Look for embedded Myvi.ru player
-        myvi_url = MyviIE._extract_url(webpage)
-        if myvi_url:
-            return self.url_result(myvi_url)
-
-        # Look for embedded soundcloud player
-        soundcloud_urls = SoundcloudIE._extract_urls(webpage)
-        if soundcloud_urls:
-            return self.playlist_from_matches(soundcloud_urls, video_id, video_title, getter=unescapeHTML, ie=SoundcloudIE.ie_key())
-
-        # Look for tunein player
-        tunein_urls = TuneInBaseIE._extract_urls(webpage)
-        if tunein_urls:
-            return self.playlist_from_matches(tunein_urls, video_id, video_title)
-
-        # Look for embedded mtvservices player
-        mtvservices_url = MTVServicesEmbeddedIE._extract_url(webpage)
-        if mtvservices_url:
-            return self.url_result(mtvservices_url, ie='MTVServicesEmbedded')
-
-        # Look for embedded yahoo player
-        mobj = re.search(
-            r'<iframe[^>]+?src=(["\'])(?P<url>https?://(?:screen|movies)\.yahoo\.com/.+?\.html\?format=embed)\1',
-            webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group('url'), 'Yahoo')
-
-        # Look for embedded sbs.com.au player
-        mobj = re.search(
-            r'''(?x)
-            (?:
-                <meta\s+property="og:video"\s+content=|
-                <iframe[^>]+?src=
-            )
-            (["\'])(?P<url>https?://(?:www\.)?sbs\.com\.au/ondemand/video/.+?)\1''',
-            webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group('url'), 'SBS')
-
-        # Look for embedded Cinchcast player
-        mobj = re.search(
-            r'<iframe[^>]+?src=(["\'])(?P<url>https?://player\.cinchcast\.com/.+?)\1',
-            webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group('url'), 'Cinchcast')
-
-        mobj = re.search(
-            r'<iframe[^>]+?src=(["\'])(?P<url>https?://m(?:lb)?\.mlb\.com/shared/video/embed/embed\.html\?.+?)\1',
-            webpage)
-        if not mobj:
-            mobj = re.search(
-                r'data-video-link=["\'](?P<url>http://m.mlb.com/video/[^"\']+)',
-                webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group('url'), 'MLB')
-
-        mobj = re.search(
-            r'<(?:iframe|script)[^>]+?src=(["\'])(?P<url>%s)\1' % CondeNastIE.EMBED_URL,
-            webpage)
-        if mobj is not None:
-            return self.url_result(self._proto_relative_url(mobj.group('url'), scheme='http:'), 'CondeNast')
-
-        mobj = re.search(
-            r'<iframe[^>]+src="(?P<url>https?://(?:new\.)?livestream\.com/[^"]+/player[^"]+)"',
-            webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group('url'), 'Livestream')
-
-        # Look for Zapiks embed
-        mobj = re.search(
-            r'<iframe[^>]+src="(?P<url>https?://(?:www\.)?zapiks\.fr/index\.php\?.+?)"', webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group('url'), 'Zapiks')
-
-        # Look for Kaltura embeds
-        kaltura_url = KalturaIE._extract_url(webpage)
-        if kaltura_url:
-            return self.url_result(smuggle_url(kaltura_url, {'source_url': url}), KalturaIE.ie_key())
-
-        # Look for EaglePlatform embeds
-        eagleplatform_url = EaglePlatformIE._extract_url(webpage)
-        if eagleplatform_url:
-            return self.url_result(smuggle_url(eagleplatform_url, {'referrer': url}), EaglePlatformIE.ie_key())
-
-        # Look for ClipYou (uses EaglePlatform) embeds
-        mobj = re.search(
-            r'<iframe[^>]+src="https?://(?P<host>media\.clipyou\.ru)/index/player\?.*\brecord_id=(?P<id>\d+).*"', webpage)
-        if mobj is not None:
-            return self.url_result('eagleplatform:%(host)s:%(id)s' % mobj.groupdict(), 'EaglePlatform')
-
-        # Look for Pladform embeds
-        pladform_url = PladformIE._extract_url(webpage)
-        if pladform_url:
-            return self.url_result(pladform_url)
-
-        # Look for Videomore embeds
-        videomore_url = VideomoreIE._extract_url(webpage)
-        if videomore_url:
-            return self.url_result(videomore_url)
-
-        # Look for Webcaster embeds
-        webcaster_url = WebcasterFeedIE._extract_url(self, webpage)
-        if webcaster_url:
-            return self.url_result(webcaster_url, ie=WebcasterFeedIE.ie_key())
-
-        # Look for Playwire embeds
-        mobj = re.search(
-            r'<script[^>]+data-config=(["\'])(?P<url>(?:https?:)?//config\.playwire\.com/.+?)\1', webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group('url'))
-
-        # Look for 5min embeds
-        mobj = re.search(
-            r'<meta[^>]+property="og:video"[^>]+content="https?://embed\.5min\.com/(?P<id>[0-9]+)/?', webpage)
-        if mobj is not None:
-            return self.url_result('5min:%s' % mobj.group('id'), 'FiveMin')
-
-        # Look for Crooks and Liars embeds
-        mobj = re.search(
-            r'<(?:iframe[^>]+src|param[^>]+value)=(["\'])(?P<url>(?:https?:)?//embed\.crooksandliars\.com/(?:embed|v)/.+?)\1', webpage)
-        if mobj is not None:
-            return self.url_result(mobj.group('url'))
-
-        # Look for NBC Sports VPlayer embeds
-        nbc_sports_url = NBCSportsVPlayerIE._extract_url(webpage)
-        if nbc_sports_url:
-            return self.url_result(nbc_sports_url, 'NBCSportsVPlayer')
-
-        # Look for NBC News embeds
-        nbc_news_embed_url = re.search(
-            r'<iframe[^>]+src=(["\'])(?P<url>(?:https?:)?//www\.nbcnews\.com/widget/video-embed/[^"\']+)\1', webpage)
-        if nbc_news_embed_url:
-            return self.url_result(nbc_news_embed_url.group('url'), 'NBCNews')
-
-        # Look for Google Drive embeds
-        google_drive_url = GoogleDriveIE._extract_url(webpage)
-        if google_drive_url:
-            return self.url_result(google_drive_url, 'GoogleDrive')
-
-        # Look for UDN embeds
-        mobj = re.search(
-            r'<iframe[^>]+src="(?:https?:)?(?P<url>%s)"' % UDNEmbedIE._PROTOCOL_RELATIVE_VALID_URL, webpage)
-        if mobj is not None:
-            return self.url_result(
-                compat_urlparse.urljoin(url, mobj.group('url')), 'UDNEmbed')
-
-        # Look for Senate ISVP iframe
-        senate_isvp_url = SenateISVPIE._search_iframe_url(webpage)
-        if senate_isvp_url:
-            return self.url_result(senate_isvp_url, 'SenateISVP')
-
-        # Look for OnionStudios embeds
-        onionstudios_url = OnionStudiosIE._extract_url(webpage)
-        if onionstudios_url:
-            return self.url_result(onionstudios_url)
-
-        # Look for ViewLift embeds
-        viewlift_url = ViewLiftEmbedIE._extract_url(webpage)
-        if viewlift_url:
-            return self.url_result(viewlift_url)
-
-        # Look for JWPlatform embeds
-        jwplatform_urls = JWPlatformIE._extract_urls(webpage)
-        if jwplatform_urls:
-            return self.playlist_from_matches(jwplatform_urls, video_id, video_title, ie=JWPlatformIE.ie_key())
-
-        # Look for Digiteka embeds
-        digiteka_url = DigitekaIE._extract_url(webpage)
-        if digiteka_url:
-            return self.url_result(self._proto_relative_url(digiteka_url), DigitekaIE.ie_key())
-
-        # Look for Arkena embeds
-        arkena_url = ArkenaIE._extract_url(webpage)
-        if arkena_url:
-            return self.url_result(arkena_url, ArkenaIE.ie_key())
-
-        # Look for Piksel embeds
-        piksel_url = PikselIE._extract_url(webpage)
-        if piksel_url:
-            return self.url_result(piksel_url, PikselIE.ie_key())
-
-        # Look for Limelight embeds
-        limelight_urls = LimelightBaseIE._extract_urls(webpage, url)
-        if limelight_urls:
-            return self.playlist_result(
-                limelight_urls, video_id, video_title, video_description)
-
-        # Look for Anvato embeds
-        anvato_urls = AnvatoIE._extract_urls(self, webpage, video_id)
-        if anvato_urls:
-            return self.playlist_result(
-                anvato_urls, video_id, video_title, video_description)
-
-        # Look for AdobeTVVideo embeds
-        mobj = re.search(
-            r'<iframe[^>]+src=[\'"]((?:https?:)?//video\.tv\.adobe\.com/v/\d+[^"]+)[\'"]',
-            webpage)
-        if mobj is not None:
-            return self.url_result(
-                self._proto_relative_url(unescapeHTML(mobj.group(1))),
-                'AdobeTVVideo')
-
-        # Look for Vine embeds
-        mobj = re.search(
-            r'<iframe[^>]+src=[\'"]((?:https?:)?//(?:www\.)?vine\.co/v/[^/]+/embed/(?:simple|postcard))',
-            webpage)
-        if mobj is not None:
-            return self.url_result(
-                self._proto_relative_url(unescapeHTML(mobj.group(1))), 'Vine')
-
-        # Look for VODPlatform embeds
-        mobj = re.search(
-            r'<iframe[^>]+src=(["\'])(?P<url>(?:https?:)?//(?:www\.)?vod-platform\.net/[eE]mbed/.+?)\1',
-            webpage)
-        if mobj is not None:
-            return self.url_result(
-                self._proto_relative_url(unescapeHTML(mobj.group('url'))), 'VODPlatform')
-
-        # Look for Mangomolo embeds
-        mobj = re.search(
-            r'''(?x)<iframe[^>]+src=(["\'])(?P<url>(?:https?:)?//(?:www\.)?admin\.mangomolo\.com/analytics/index\.php/customers/embed/
-                (?:
-                    video\?.*?\bid=(?P<video_id>\d+)|
-                    index\?.*?\bchannelid=(?P<channel_id>(?:[A-Za-z0-9+/=]|%2B|%2F|%3D)+)
-                ).+?)\1''', webpage)
-        if mobj is not None:
-            info = {
-                '_type': 'url_transparent',
-                'url': self._proto_relative_url(unescapeHTML(mobj.group('url'))),
-                'title': video_title,
-                'description': video_description,
-                'thumbnail': video_thumbnail,
-                'uploader': video_uploader,
-            }
-            video_id = mobj.group('video_id')
-            if video_id:
-                info.update({
-                    'ie_key': 'MangomoloVideo',
-                    'id': video_id,
-                })
-            else:
-                info.update({
-                    'ie_key': 'MangomoloLive',
-                    'id': mobj.group('channel_id'),
-                })
-            return info
-
-        # Look for Instagram embeds
-        instagram_embed_url = InstagramIE._extract_embed_url(webpage)
-        if instagram_embed_url is not None:
-            return self.url_result(
-                self._proto_relative_url(instagram_embed_url), InstagramIE.ie_key())
-
-        # Look for LiveLeak embeds
-        liveleak_urls = LiveLeakIE._extract_urls(webpage)
-        if liveleak_urls:
-            return self.playlist_from_matches(liveleak_urls, video_id, video_title)
-
-        # Look for 3Q SDN embeds
-        threeqsdn_url = ThreeQSDNIE._extract_url(webpage)
-        if threeqsdn_url:
-            return {
-                '_type': 'url_transparent',
-                'ie_key': ThreeQSDNIE.ie_key(),
-                'url': self._proto_relative_url(threeqsdn_url),
-                'title': video_title,
-                'description': video_description,
-                'thumbnail': video_thumbnail,
-                'uploader': video_uploader,
-            }
-
-        # Look for VBOX7 embeds
-        vbox7_url = Vbox7IE._extract_url(webpage)
-        if vbox7_url:
-            return self.url_result(vbox7_url, Vbox7IE.ie_key())
-
-        # Look for DBTV embeds
-        dbtv_urls = DBTVIE._extract_urls(webpage)
-        if dbtv_urls:
-            return self.playlist_from_matches(dbtv_urls, video_id, video_title, ie=DBTVIE.ie_key())
-
-        # Look for Videa embeds
-        videa_urls = VideaIE._extract_urls(webpage)
-        if videa_urls:
-            return self.playlist_from_matches(videa_urls, video_id, video_title, ie=VideaIE.ie_key())
-
-        # Look for 20 minuten embeds
-        twentymin_urls = TwentyMinutenIE._extract_urls(webpage)
-        if twentymin_urls:
-            return self.playlist_from_matches(
-                twentymin_urls, video_id, video_title, ie=TwentyMinutenIE.ie_key())
-
-        # Look for Openload embeds
-        openload_urls = OpenloadIE._extract_urls(webpage)
-        if openload_urls:
-            return self.playlist_from_matches(
-                openload_urls, video_id, video_title, ie=OpenloadIE.ie_key())
-
-        # Look for VideoPress embeds
-        videopress_urls = VideoPressIE._extract_urls(webpage)
-        if videopress_urls:
-            return self.playlist_from_matches(
-                videopress_urls, video_id, video_title, ie=VideoPressIE.ie_key())
-
-        # Look for Rutube embeds
-        rutube_urls = RutubeIE._extract_urls(webpage)
-        if rutube_urls:
-            return self.playlist_from_matches(
-                rutube_urls, video_id, video_title, ie=RutubeIE.ie_key())
-
-        # Look for WashingtonPost embeds
-        wapo_urls = WashingtonPostIE._extract_urls(webpage)
-        if wapo_urls:
-            return self.playlist_from_matches(
-                wapo_urls, video_id, video_title, ie=WashingtonPostIE.ie_key())
-
-        # Look for Mediaset embeds
-        mediaset_urls = MediasetIE._extract_urls(webpage)
-        if mediaset_urls:
-            return self.playlist_from_matches(
-                mediaset_urls, video_id, video_title, ie=MediasetIE.ie_key())
-
-        # Look for JOJ.sk embeds
-        joj_urls = JojIE._extract_urls(webpage)
-        if joj_urls:
-            return self.playlist_from_matches(
-                joj_urls, video_id, video_title, ie=JojIE.ie_key())
-
-        # Look for megaphone.fm embeds
-        mpfn_urls = MegaphoneIE._extract_urls(webpage)
-        if mpfn_urls:
-            return self.playlist_from_matches(
-                mpfn_urls, video_id, video_title, ie=MegaphoneIE.ie_key())
-
-        # Look for vzaar embeds
-        vzaar_urls = VzaarIE._extract_urls(webpage)
-        if vzaar_urls:
-            return self.playlist_from_matches(
-                vzaar_urls, video_id, video_title, ie=VzaarIE.ie_key())
-
-        channel9_urls = Channel9IE._extract_urls(webpage)
-        if channel9_urls:
-            return self.playlist_from_matches(
-                channel9_urls, video_id, video_title, ie=Channel9IE.ie_key())
-
-        vshare_urls = VShareIE._extract_urls(webpage)
-        if vshare_urls:
-            return self.playlist_from_matches(
-                vshare_urls, video_id, video_title, ie=VShareIE.ie_key())
-
-        # Look for Mediasite embeds
-        mediasite_urls = MediasiteIE._extract_urls(webpage)
-        if mediasite_urls:
-            entries = [
-                self.url_result(smuggle_url(
-                    compat_urlparse.urljoin(url, mediasite_url),
-                    {'UrlReferrer': url}), ie=MediasiteIE.ie_key())
-                for mediasite_url in mediasite_urls]
-            return self.playlist_result(entries, video_id, video_title)
-
-        springboardplatform_urls = SpringboardPlatformIE._extract_urls(webpage)
-        if springboardplatform_urls:
-            return self.playlist_from_matches(
-                springboardplatform_urls, video_id, video_title,
-                ie=SpringboardPlatformIE.ie_key())
-
-        yapfiles_urls = YapFilesIE._extract_urls(webpage)
-        if yapfiles_urls:
-            return self.playlist_from_matches(
-                yapfiles_urls, video_id, video_title, ie=YapFilesIE.ie_key())
-
-        vice_urls = ViceIE._extract_urls(webpage)
-        if vice_urls:
-            return self.playlist_from_matches(
-                vice_urls, video_id, video_title, ie=ViceIE.ie_key())
-
-        xfileshare_urls = XFileShareIE._extract_urls(webpage)
-        if xfileshare_urls:
-            return self.playlist_from_matches(
-                xfileshare_urls, video_id, video_title, ie=XFileShareIE.ie_key())
-
-        cloudflarestream_urls = CloudflareStreamIE._extract_urls(webpage)
-        if cloudflarestream_urls:
-            return self.playlist_from_matches(
-                cloudflarestream_urls, video_id, video_title, ie=CloudflareStreamIE.ie_key())
-
-        peertube_urls = PeerTubeIE._extract_urls(webpage, url)
-        if peertube_urls:
-            return self.playlist_from_matches(
-                peertube_urls, video_id, video_title, ie=PeerTubeIE.ie_key())
-
-        indavideo_urls = IndavideoEmbedIE._extract_urls(webpage)
-        if indavideo_urls:
-            return self.playlist_from_matches(
-                indavideo_urls, video_id, video_title, ie=IndavideoEmbedIE.ie_key())
-
-        apa_urls = APAIE._extract_urls(webpage)
-        if apa_urls:
-            return self.playlist_from_matches(
-                apa_urls, video_id, video_title, ie=APAIE.ie_key())
-
-        foxnews_urls = FoxNewsIE._extract_urls(webpage)
-        if foxnews_urls:
-            return self.playlist_from_matches(
-                foxnews_urls, video_id, video_title, ie=FoxNewsIE.ie_key())
-
-        sharevideos_urls = [mobj.group('url') for mobj in re.finditer(
-            r'<iframe[^>]+?\bsrc\s*=\s*(["\'])(?P<url>(?:https?:)?//embed\.share-videos\.se/auto/embed/\d+\?.*?\buid=\d+.*?)\1',
-            webpage)]
-        if sharevideos_urls:
-            return self.playlist_from_matches(
-                sharevideos_urls, video_id, video_title)
-
-        # Look for HTML5 media
-        entries = self._parse_html5_media_entries(url, webpage, video_id, m3u8_id='hls')
-        if entries:
-            if len(entries) == 1:
-                entries[0].update({
-                    'id': video_id,
-                    'title': video_title,
-                })
-            else:
-                for num, entry in enumerate(entries, start=1):
-                    entry.update({
-                        'id': '%s-%s' % (video_id, num),
-                        'title': '%s (%d)' % (video_title, num),
-                    })
-            for entry in entries:
-                self._sort_formats(entry['formats'])
-            return self.playlist_result(entries, video_id, video_title)
-
-        jwplayer_data = self._find_jwplayer_data(
-            webpage, video_id, transform_source=js_to_json)
-        if jwplayer_data:
-            info = self._parse_jwplayer_data(
-                jwplayer_data, video_id, require_title=False, base_url=url)
-            return merge_dicts(info, info_dict)
-
-        # Video.js embed
-        mobj = re.search(
-            r'(?s)\bvideojs\s*\(.+?\.src\s*\(\s*((?:\[.+?\]|{.+?}))\s*\)\s*;',
-            webpage)
-        if mobj is not None:
-            sources = self._parse_json(
-                mobj.group(1), video_id, transform_source=js_to_json,
-                fatal=False) or []
-            if not isinstance(sources, list):
-                sources = [sources]
-            formats = []
-            for source in sources:
-                src = source.get('src')
-                if not src or not isinstance(src, compat_str):
-                    continue
-                src = compat_urlparse.urljoin(url, src)
-                src_type = source.get('type')
-                if isinstance(src_type, compat_str):
-                    src_type = src_type.lower()
-                ext = determine_ext(src).lower()
-                if src_type == 'video/youtube':
-                    return self.url_result(src, YoutubeIE.ie_key())
-                if src_type == 'application/dash+xml' or ext == 'mpd':
-                    formats.extend(self._extract_mpd_formats(
-                        src, video_id, mpd_id='dash', fatal=False))
-                elif src_type == 'application/x-mpegurl' or ext == 'm3u8':
-                    formats.extend(self._extract_m3u8_formats(
-                        src, video_id, 'mp4', entry_protocol='m3u8_native',
-                        m3u8_id='hls', fatal=False))
-                else:
-                    formats.append({
-                        'url': src,
-                        'ext': (mimetype2ext(src_type) or
-                                ext if ext in KNOWN_EXTENSIONS else 'mp4'),
-                    })
-            if formats:
-                self._sort_formats(formats)
-                info_dict['formats'] = formats
-                return info_dict
-
-        # Looking for http://schema.org/VideoObject
-        json_ld = self._search_json_ld(
-            webpage, video_id, default={}, expected_type='VideoObject')
-        if json_ld.get('url'):
-            return merge_dicts(json_ld, info_dict)
-
-        def check_video(vurl):
-            if YoutubeIE.suitable(vurl):
-                return True
-            if RtmpIE.suitable(vurl):
-                return True
-            vpath = compat_urlparse.urlparse(vurl).path
-            vext = determine_ext(vpath)
-            return '.' in vpath and vext not in ('swf', 'png', 'jpg', 'srt', 'sbv', 'sub', 'vtt', 'ttml', 'js', 'xml')
-
-        def filter_video(urls):
-            return list(filter(check_video, urls))
-
-        # Start with something easy: JW Player in SWFObject
-        found = filter_video(re.findall(r'flashvars: [\'"](?:.*&)?file=(http[^\'"&]*)', webpage))
-        if not found:
-            # Look for gorilla-vid style embedding
-            found = filter_video(re.findall(r'''(?sx)
-                (?:
-                    jw_plugins|
-                    JWPlayerOptions|
-                    jwplayer\s*\(\s*["'][^'"]+["']\s*\)\s*\.setup
-                )
-                .*?
-                ['"]?file['"]?\s*:\s*["\'](.*?)["\']''', webpage))
-        if not found:
-            # Broaden the search a little bit
-            found = filter_video(re.findall(r'[^A-Za-z0-9]?(?:file|source)=(http[^\'"&]*)', webpage))
-        if not found:
-            # Broaden the findall a little bit: JWPlayer JS loader
-            found = filter_video(re.findall(
-                r'[^A-Za-z0-9]?(?:file|video_url)["\']?:\s*["\'](http(?![^\'"]+\.[0-9]+[\'"])[^\'"]+)["\']', webpage))
-        if not found:
-            # Flow player
-            found = filter_video(re.findall(r'''(?xs)
-                flowplayer\("[^"]+",\s*
-                    \{[^}]+?\}\s*,
-                    \s*\{[^}]+? ["']?clip["']?\s*:\s*\{\s*
-                        ["']?url["']?\s*:\s*["']([^"']+)["']
-            ''', webpage))
-        if not found:
-            # Cinerama player
-            found = re.findall(
-                r"cinerama\.embedPlayer\(\s*\'[^']+\',\s*'([^']+)'", webpage)
-        if not found:
-            # Try to find twitter cards info
-            # twitter:player:stream should be checked before twitter:player since
-            # it is expected to contain a raw stream (see
-            # https://dev.twitter.com/cards/types/player#On_twitter.com_via_desktop_browser)
-            found = filter_video(re.findall(
-                r'<meta (?:property|name)="twitter:player:stream" (?:content|value)="(.+?)"', webpage))
-        if not found:
-            # We look for Open Graph info:
-            # We have to match any number spaces between elements, some sites try to align them (eg.: statigr.am)
-            m_video_type = re.findall(r'<meta.*?property="og:video:type".*?content="video/(.*?)"', webpage)
-            # We only look in og:video if the MIME type is a video, don't try if it's a Flash player:
-            if m_video_type is not None:
-                found = filter_video(re.findall(r'<meta.*?property="og:video".*?content="(.*?)"', webpage))
-        if not found:
-            REDIRECT_REGEX = r'[0-9]{,2};\s*(?:URL|url)=\'?([^\'"]+)'
-            found = re.search(
-                r'(?i)<meta\s+(?=(?:[a-z-]+="[^"]+"\s+)*http-equiv="refresh")'
-                r'(?:[a-z-]+="[^"]+"\s+)*?content="%s' % REDIRECT_REGEX,
-                webpage)
-            if not found:
-                # Look also in Refresh HTTP header
-                refresh_header = head_response.headers.get('Refresh')
-                if refresh_header:
-                    # In python 2 response HTTP headers are bytestrings
-                    if sys.version_info < (3, 0) and isinstance(refresh_header, str):
-                        refresh_header = refresh_header.decode('iso-8859-1')
-                    found = re.search(REDIRECT_REGEX, refresh_header)
-            if found:
-                new_url = compat_urlparse.urljoin(url, unescapeHTML(found.group(1)))
-                if new_url != url:
-                    self.report_following_redirect(new_url)
-                    return {
-                        '_type': 'url',
-                        'url': new_url,
-                    }
-                else:
-                    found = None
-
-        if not found:
-            # twitter:player is a https URL to iframe player that may or may not
-            # be supported by youtube-dl thus this is checked the very last (see
-            # https://dev.twitter.com/cards/types/player#On_twitter.com_via_desktop_browser)
-            embed_url = self._html_search_meta('twitter:player', webpage, default=None)
-            if embed_url and embed_url != url:
-                return self.url_result(embed_url)
-
-        if not found:
-            raise UnsupportedError(url)
-
-        entries = []
-        for video_url in orderedSet(found):
-            video_url = unescapeHTML(video_url)
-            video_url = video_url.replace('\\/', '/')
-            video_url = compat_urlparse.urljoin(url, video_url)
-            video_id = compat_urllib_parse_unquote(os.path.basename(video_url))
-
-            # Sometimes, jwplayer extraction will result in a YouTube URL
-            if YoutubeIE.suitable(video_url):
-                entries.append(self.url_result(video_url, 'Youtube'))
-                continue
-
-            # here's a fun little line of code for you:
-            video_id = os.path.splitext(video_id)[0]
-
-            entry_info_dict = {
-                'id': video_id,
-                'uploader': video_uploader,
-                'title': video_title,
-                'age_limit': age_limit,
-            }
-
-            if RtmpIE.suitable(video_url):
-                entry_info_dict.update({
-                    '_type': 'url_transparent',
-                    'ie_key': RtmpIE.ie_key(),
-                    'url': video_url,
-                })
-                entries.append(entry_info_dict)
-                continue
-
-            ext = determine_ext(video_url)
-            if ext == 'smil':
-                entry_info_dict['formats'] = self._extract_smil_formats(video_url, video_id)
-            elif ext == 'xspf':
-                return self.playlist_result(self._extract_xspf_playlist(video_url, video_id), video_id)
-            elif ext == 'm3u8':
-                entry_info_dict['formats'] = self._extract_m3u8_formats(video_url, video_id, ext='mp4')
-            elif ext == 'mpd':
-                entry_info_dict['formats'] = self._extract_mpd_formats(video_url, video_id)
-            elif ext == 'f4m':
-                entry_info_dict['formats'] = self._extract_f4m_formats(video_url, video_id)
-            elif re.search(r'(?i)\.(?:ism|smil)/manifest', video_url) and video_url != url:
-                # Just matching .ism/manifest is not enough to be reliably sure
-                # whether it's actually an ISM manifest or some other streaming
-                # manifest since there are various streaming URL formats
-                # possible (see [1]) as well as some other shenanigans like
-                # .smil/manifest URLs that actually serve an ISM (see [2]) and
-                # so on.
-                # Thus the most reasonable way to solve this is to delegate
-                # to generic extractor in order to look into the contents of
-                # the manifest itself.
-                # 1. https://azure.microsoft.com/en-us/documentation/articles/media-services-deliver-content-overview/#streaming-url-formats
-                # 2. https://svs.itworkscdn.net/lbcivod/smil:itwfcdn/lbci/170976.smil/Manifest
-                entry_info_dict = self.url_result(
-                    smuggle_url(video_url, {'to_generic': True}),
-                    GenericIE.ie_key())
-            else:
-                entry_info_dict['url'] = video_url
-
-            if entry_info_dict.get('formats'):
-                self._sort_formats(entry_info_dict['formats'])
-
-            entries.append(entry_info_dict)
-
-        if len(entries) == 1:
-            return entries[0]
-        else:
-            for num, e in enumerate(entries, start=1):
-                # 'url' results don't have a title
-                if e.get('title') is not None:
-                    e['title'] = '%s (%d)' % (e['title'], num)
-            return {
-                '_type': 'playlist',
-                'entries': entries,
-            }
diff --git a/youtube_dl/extractor/openload.py b/youtube_dl/extractor/openload.py
deleted file mode 100644
index d264fe2..0000000
--- a/youtube_dl/extractor/openload.py
+++ /dev/null
@@ -1,379 +0,0 @@
-# coding: utf-8
-from __future__ import unicode_literals
-
-import json
-import os
-import re
-import subprocess
-import tempfile
-
-from .common import InfoExtractor
-from ..compat import (
-    compat_urlparse,
-    compat_kwargs,
-)
-from ..utils import (
-    check_executable,
-    determine_ext,
-    encodeArgument,
-    ExtractorError,
-    get_element_by_id,
-    get_exe_version,
-    is_outdated_version,
-    std_headers,
-)
-
-
-def cookie_to_dict(cookie):
-    cookie_dict = {
-        'name': cookie.name,
-        'value': cookie.value,
-    }
-    if cookie.port_specified:
-        cookie_dict['port'] = cookie.port
-    if cookie.domain_specified:
-        cookie_dict['domain'] = cookie.domain
-    if cookie.path_specified:
-        cookie_dict['path'] = cookie.path
-    if cookie.expires is not None:
-        cookie_dict['expires'] = cookie.expires
-    if cookie.secure is not None:
-        cookie_dict['secure'] = cookie.secure
-    if cookie.discard is not None:
-        cookie_dict['discard'] = cookie.discard
-    try:
-        if (cookie.has_nonstandard_attr('httpOnly') or
-                cookie.has_nonstandard_attr('httponly') or
-                cookie.has_nonstandard_attr('HttpOnly')):
-            cookie_dict['httponly'] = True
-    except TypeError:
-        pass
-    return cookie_dict
-
-
-def cookie_jar_to_list(cookie_jar):
-    return [cookie_to_dict(cookie) for cookie in cookie_jar]
-
-
-class PhantomJSwrapper(object):
-    """PhantomJS wrapper class
-
-    This class is experimental.
-    """
-
-    _TEMPLATE = r'''
-        phantom.onError = function(msg, trace) {{
-          var msgStack = ['PHANTOM ERROR: ' + msg];
-          if(trace && trace.length) {{
-            msgStack.push('TRACE:');
-            trace.forEach(function(t) {{
-              msgStack.push(' -> ' + (t.file || t.sourceURL) + ': ' + t.line
-                + (t.function ? ' (in function ' + t.function +')' : ''));
-            }});
-          }}
-          console.error(msgStack.join('\n'));
-          phantom.exit(1);
-        }};
-        var page = require('webpage').create();
-        var fs = require('fs');
-        var read = {{ mode: 'r', charset: 'utf-8' }};
-        var write = {{ mode: 'w', charset: 'utf-8' }};
-        JSON.parse(fs.read("{cookies}", read)).forEach(function(x) {{
-          phantom.addCookie(x);
-        }});
-        page.settings.resourceTimeout = {timeout};
-        page.settings.userAgent = "{ua}";
-        page.onLoadStarted = function() {{
-          page.evaluate(function() {{
-            delete window._phantom;
-            delete window.callPhantom;
-          }});
-        }};
-        var saveAndExit = function() {{
-          fs.write("{html}", page.content, write);
-          fs.write("{cookies}", JSON.stringify(phantom.cookies), write);
-          phantom.exit();
-        }};
-        page.onLoadFinished = function(status) {{
-          if(page.url === "") {{
-            page.setContent(fs.read("{html}", read), "{url}");
-          }}
-          else {{
-            {jscode}
-          }}
-        }};
-        page.open("");
-    '''
-
-    _TMP_FILE_NAMES = ['script', 'html', 'cookies']
-
-    @staticmethod
-    def _version():
-        return get_exe_version('phantomjs', version_re=r'([0-9.]+)')
-
-    def __init__(self, extractor, required_version=None, timeout=10000):
-        self._TMP_FILES = {}
-
-        self.exe = check_executable('phantomjs', ['-v'])
-        if not self.exe:
-            raise ExtractorError('PhantomJS executable not found in PATH, '
-                                 'download it from http://phantomjs.org',
-                                 expected=True)
-
-        self.extractor = extractor
-
-        if required_version:
-            version = self._version()
-            if is_outdated_version(version, required_version):
-                self.extractor._downloader.report_warning(
-                    'Your copy of PhantomJS is outdated, update it to version '
-                    '%s or newer if you encounter any errors.' % required_version)
-
-        self.options = {
-            'timeout': timeout,
-        }
-        for name in self._TMP_FILE_NAMES:
-            tmp = tempfile.NamedTemporaryFile(delete=False)
-            tmp.close()
-            self._TMP_FILES[name] = tmp
-
-    def __del__(self):
-        for name in self._TMP_FILE_NAMES:
-            try:
-                os.remove(self._TMP_FILES[name].name)
-            except (IOError, OSError, KeyError):
-                pass
-
-    def _save_cookies(self, url):
-        cookies = cookie_jar_to_list(self.extractor._downloader.cookiejar)
-        for cookie in cookies:
-            if 'path' not in cookie:
-                cookie['path'] = '/'
-            if 'domain' not in cookie:
-                cookie['domain'] = compat_urlparse.urlparse(url).netloc
-        with open(self._TMP_FILES['cookies'].name, 'wb') as f:
-            f.write(json.dumps(cookies).encode('utf-8'))
-
-    def _load_cookies(self):
-        with open(self._TMP_FILES['cookies'].name, 'rb') as f:
-            cookies = json.loads(f.read().decode('utf-8'))
-        for cookie in cookies:
-            if cookie['httponly'] is True:
-                cookie['rest'] = {'httpOnly': None}
-            if 'expiry' in cookie:
-                cookie['expire_time'] = cookie['expiry']
-            self.extractor._set_cookie(**compat_kwargs(cookie))
-
-    def get(self, url, html=None, video_id=None, note=None, note2='Executing JS on webpage', headers={}, jscode='saveAndExit();'):
-        """
-        Downloads webpage (if needed) and executes JS
-
-        Params:
-            url: website url
-            html: optional, html code of website
-            video_id: video id
-            note: optional, displayed when downloading webpage
-            note2: optional, displayed when executing JS
-            headers: custom http headers
-            jscode: code to be executed when page is loaded
-
-        Returns tuple with:
-            * downloaded website (after JS execution)
-            * anything you print with `console.log` (but not inside `page.execute`!)
-
-        In most cases you don't need to add any `jscode`.
-        It is executed in `page.onLoadFinished`.
-        `saveAndExit();` is mandatory, use it instead of `phantom.exit()`
-        It is possible to wait for some element on the webpage, for example:
-            var check = function() {
-              var elementFound = page.evaluate(function() {
-                return document.querySelector('#b.done') !== null;
-              });
-              if(elementFound)
-                saveAndExit();
-              else
-                window.setTimeout(check, 500);
-            }
-
-            page.evaluate(function(){
-              document.querySelector('#a').click();
-            });
-            check();
-        """
-        if 'saveAndExit();' not in jscode:
-            raise ExtractorError('`saveAndExit();` not found in `jscode`')
-        if not html:
-            html = self.extractor._download_webpage(url, video_id, note=note, headers=headers)
-        with open(self._TMP_FILES['html'].name, 'wb') as f:
-            f.write(html.encode('utf-8'))
-
-        self._save_cookies(url)
-
-        replaces = self.options
-        replaces['url'] = url
-        user_agent = headers.get('User-Agent') or std_headers['User-Agent']
-        replaces['ua'] = user_agent.replace('"', '\\"')
-        replaces['jscode'] = jscode
-
-        for x in self._TMP_FILE_NAMES:
-            replaces[x] = self._TMP_FILES[x].name.replace('\\', '\\\\').replace('"', '\\"')
-
-        with open(self._TMP_FILES['script'].name, 'wb') as f:
-            f.write(self._TEMPLATE.format(**replaces).encode('utf-8'))
-
-        if video_id is None:
-            self.extractor.to_screen('%s' % (note2,))
-        else:
-            self.extractor.to_screen('%s: %s' % (video_id, note2))
-
-        p = subprocess.Popen([
-            self.exe, '--ssl-protocol=any',
-            self._TMP_FILES['script'].name
-        ], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-        out, err = p.communicate()
-        if p.returncode != 0:
-            raise ExtractorError(
-                'Executing JS failed\n:' + encodeArgument(err))
-        with open(self._TMP_FILES['html'].name, 'rb') as f:
-            html = f.read().decode('utf-8')
-
-        self._load_cookies()
-
-        return (html, encodeArgument(out))
-
-
-class OpenloadIE(InfoExtractor):
-    _VALID_URL = r'https?://(?:www\.)?(?:openload\.(?:co|io|link)|oload\.(?:tv|stream|site|xyz|win|download))/(?:f|embed)/(?P<id>[a-zA-Z0-9-_]+)'
-
-    _TESTS = [{
-        'url': 'https://openload.co/f/kUEfGclsU9o',
-        'md5': 'bf1c059b004ebc7a256f89408e65c36e',
-        'info_dict': {
-            'id': 'kUEfGclsU9o',
-            'ext': 'mp4',
-            'title': 'skyrim_no-audio_1080.mp4',
-            'thumbnail': r're:^https?://.*\.jpg$',
-        },
-    }, {
-        'url': 'https://openload.co/embed/rjC09fkPLYs',
-        'info_dict': {
-            'id': 'rjC09fkPLYs',
-            'ext': 'mp4',
-            'title': 'movie.mp4',
-            'thumbnail': r're:^https?://.*\.jpg$',
-            'subtitles': {
-                'en': [{
-                    'ext': 'vtt',
-                }],
-            },
-        },
-        'params': {
-            'skip_download': True,  # test subtitles only
-        },
-    }, {
-        'url': 'https://openload.co/embed/kUEfGclsU9o/skyrim_no-audio_1080.mp4',
-        'only_matching': True,
-    }, {
-        'url': 'https://openload.io/f/ZAn6oz-VZGE/',
-        'only_matching': True,
-    }, {
-        'url': 'https://openload.co/f/_-ztPaZtMhM/',
-        'only_matching': True,
-    }, {
-        # unavailable via https://openload.co/f/Sxz5sADo82g/, different layout
-        # for title and ext
-        'url': 'https://openload.co/embed/Sxz5sADo82g/',
-        'only_matching': True,
-    }, {
-        # unavailable via https://openload.co/embed/e-Ixz9ZR5L0/ but available
-        # via https://openload.co/f/e-Ixz9ZR5L0/
-        'url': 'https://openload.co/f/e-Ixz9ZR5L0/',
-        'only_matching': True,
-    }, {
-        'url': 'https://oload.tv/embed/KnG-kKZdcfY/',
-        'only_matching': True,
-    }, {
-        'url': 'http://www.openload.link/f/KnG-kKZdcfY',
-        'only_matching': True,
-    }, {
-        'url': 'https://oload.stream/f/KnG-kKZdcfY',
-        'only_matching': True,
-    }, {
-        'url': 'https://oload.xyz/f/WwRBpzW8Wtk',
-        'only_matching': True,
-    }, {
-        'url': 'https://oload.win/f/kUEfGclsU9o',
-        'only_matching': True,
-    }, {
-        'url': 'https://oload.download/f/kUEfGclsU9o',
-        'only_matching': True,
-    }, {
-        # Its title has not got its extension but url has it
-        'url': 'https://oload.download/f/N4Otkw39VCw/Tomb.Raider.2018.HDRip.XviD.AC3-EVO.avi.mp4',
-        'only_matching': True,
-    }]
-
-    _USER_AGENT = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36'
-
-    @staticmethod
-    def _extract_urls(webpage):
-        return re.findall(
-            r'<iframe[^>]+src=["\']((?:https?://)?(?:openload\.(?:co|io)|oload\.tv)/embed/[a-zA-Z0-9-_]+)',
-            webpage)
-
-    def _real_extract(self, url):
-        video_id = self._match_id(url)
-        url_pattern = 'https://openload.co/%%s/%s/' % video_id
-        headers = {
-            'User-Agent': self._USER_AGENT,
-        }
-
-        for path in ('embed', 'f'):
-            page_url = url_pattern % path
-            last = path == 'f'
-            webpage = self._download_webpage(
-                page_url, video_id, 'Downloading %s webpage' % path,
-                headers=headers, fatal=last)
-            if not webpage:
-                continue
-            if 'File not found' in webpage or 'deleted by the owner' in webpage:
-                if not last:
-                    continue
-                raise ExtractorError('File not found', expected=True, video_id=video_id)
-            break
-
-        phantom = PhantomJSwrapper(self, required_version='2.0')
-        webpage, _ = phantom.get(page_url, html=webpage, video_id=video_id, headers=headers)
-
-        decoded_id = (get_element_by_id('streamurl', webpage) or
-                      get_element_by_id('streamuri', webpage) or
-                      get_element_by_id('streamurj', webpage) or
-                      self._search_regex(
-                          (r'>\s*([\w-]+~\d{10,}~\d+\.\d+\.0\.0~[\w-]+)\s*<',
-                           r'>\s*([\w~-]+~\d+\.\d+\.\d+\.\d+~[\w~-]+)',
-                           r'>\s*([\w-]+~\d{10,}~(?:[a-f\d]+:){2}:~[\w-]+)\s*<',
-                           r'>\s*([\w~-]+~[a-f0-9:]+~[\w~-]+)\s*<',
-                           r'>\s*([\w~-]+~[a-f0-9:]+~[\w~-]+)'), webpage,
-                          'stream URL'))
-
-        video_url = 'https://openload.co/stream/%s?mime=true' % decoded_id
-
-        title = self._og_search_title(webpage, default=None) or self._search_regex(
-            r'<span[^>]+class=["\']title["\'][^>]*>([^<]+)', webpage,
-            'title', default=None) or self._html_search_meta(
-            'description', webpage, 'title', fatal=True)
-
-        entries = self._parse_html5_media_entries(page_url, webpage, video_id)
-        entry = entries[0] if entries else {}
-        subtitles = entry.get('subtitles')
-
-        info_dict = {
-            'id': video_id,
-            'title': title,
-            'thumbnail': entry.get('thumbnail') or self._og_search_thumbnail(webpage, default=None),
-            'url': video_url,
-            'ext': determine_ext(title, None) or determine_ext(url, 'mp4'),
-            'subtitles': subtitles,
-            'http_headers': headers,
-        }
-        return info_dict
diff --git a/youtube_dl/extractor/youtube.py b/youtube_dl/extractor/youtube.py
deleted file mode 100644
index df8ec25..0000000
--- a/youtube_dl/extractor/youtube.py
+++ /dev/null
@@ -1,3394 +0,0 @@
-# coding: utf-8
-
-from __future__ import unicode_literals
-
-
-import itertools
-import json
-import os.path
-import random
-import re
-import time
-import traceback
-import html
-
-from .common import InfoExtractor, SearchInfoExtractor
-from ..jsinterp import JSInterpreter
-from ..swfinterp import SWFInterpreter
-from ..compat import (
-    compat_chr,
-    compat_HTTPError,
-    compat_kwargs,
-    compat_parse_qs,
-    compat_urllib_parse_unquote,
-    compat_urllib_parse_unquote_plus,
-    compat_urllib_parse_urlencode,
-    compat_urllib_parse_urlparse,
-    compat_urlparse,
-    compat_str,
-)
-from ..utils import (
-    bool_or_none,
-    clean_html,
-    dict_get,
-    error_to_compat_str,
-    extract_attributes,
-    ExtractorError,
-    float_or_none,
-    get_element_by_attribute,
-    get_element_by_id,
-    int_or_none,
-    mimetype2ext,
-    orderedSet,
-    parse_codecs,
-    parse_duration,
-    remove_quotes,
-    remove_start,
-    smuggle_url,
-    str_or_none,
-    str_to_int,
-    try_get,
-    unescapeHTML,
-    unified_strdate,
-    unsmuggle_url,
-    uppercase_escape,
-    url_or_none,
-    urlencode_postdata,
-)
-class YoutubeError(Exception):
-    pass
-
-class YoutubeBaseInfoExtractor(InfoExtractor):
-    """Provide base functions for Youtube extractors"""
-    _LOGIN_URL = 'https://accounts.google.com/ServiceLogin'
-    _TWOFACTOR_URL = 'https://accounts.google.com/signin/challenge'
-
-    _LOOKUP_URL = 'https://accounts.google.com/_/signin/sl/lookup'
-    _CHALLENGE_URL = 'https://accounts.google.com/_/signin/sl/challenge'
-    _TFA_URL = 'https://accounts.google.com/_/signin/challenge?hl=en&TL={0}'
-
-    _NETRC_MACHINE = 'youtube'
-    # If True it will raise an error if no login info is provided
-    _LOGIN_REQUIRED = False
-
-    _PLAYLIST_ID_RE = r'(?:PL|LL|EC|UU|FL|RD|UL|TL|OLAK5uy_)[0-9A-Za-z-_]{10,}'
-
-    def _set_language(self):
-        self._set_cookie(
-            '.youtube.com', 'PREF', 'f1=50000000&hl=en',
-            # YouTube sets the expire time to about two months
-            expire_time=time.time() + 2 * 30 * 24 * 3600)
-
-    def _ids_to_results(self, ids):
-        return [
-            self.url_result(vid_id, 'Youtube', video_id=vid_id)
-            for vid_id in ids]
-
-    def _login(self):
-        """
-        Attempt to log in to YouTube.
-        True is returned if successful or skipped.
-        False is returned if login failed.
-
-        If _LOGIN_REQUIRED is set and no authentication was provided, an error is raised.
-        """
-        username, password = self._get_login_info()
-        # No authentication to be performed
-        if username is None:
-            if self._LOGIN_REQUIRED and self._downloader.params.get('cookiefile') is None:
-                raise ExtractorError('No login info available, needed for using %s.' % self.IE_NAME, expected=True)
-            return True
-
-        login_page = self._download_webpage(
-            self._LOGIN_URL, None,
-            note='Downloading login page',
-            errnote='unable to fetch login page', fatal=False)
-        if login_page is False:
-            return
-
-        login_form = self._hidden_inputs(login_page)
-
-        def req(url, f_req, note, errnote):
-            data = login_form.copy()
-            data.update({
-                'pstMsg': 1,
-                'checkConnection': 'youtube',
-                'checkedDomains': 'youtube',
-                'hl': 'en',
-                'deviceinfo': '[null,null,null,[],null,"US",null,null,[],"GlifWebSignIn",null,[null,null,[]]]',
-                'f.req': json.dumps(f_req),
-                'flowName': 'GlifWebSignIn',
-                'flowEntry': 'ServiceLogin',
-                # TODO: reverse actual botguard identifier generation algo
-                'bgRequest': '["identifier",""]',
-            })
-            return self._download_json(
-                url, None, note=note, errnote=errnote,
-                transform_source=lambda s: re.sub(r'^[^[]*', '', s),
-                fatal=False,
-                data=urlencode_postdata(data), headers={
-                    'Content-Type': 'application/x-www-form-urlencoded;charset=utf-8',
-                    'Google-Accounts-XSRF': 1,
-                })
-
-        def warn(message):
-            self._downloader.report_warning(message)
-
-        lookup_req = [
-            username,
-            None, [], None, 'US', None, None, 2, False, True,
-            [
-                None, None,
-                [2, 1, None, 1,
-                 'https://accounts.google.com/ServiceLogin?passive=true&continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Fnext%3D%252F%26action_handle_signin%3Dtrue%26hl%3Den%26app%3Ddesktop%26feature%3Dsign_in_button&hl=en&service=youtube&uilel=3&requestPath=%2FServiceLogin&Page=PasswordSeparationSignIn',
-                 None, [], 4],
-                1, [None, None, []], None, None, None, True
-            ],
-            username,
-        ]
-
-        lookup_results = req(
-            self._LOOKUP_URL, lookup_req,
-            'Looking up account info', 'Unable to look up account info')
-
-        if lookup_results is False:
-            return False
-
-        user_hash = try_get(lookup_results, lambda x: x[0][2], compat_str)
-        if not user_hash:
-            warn('Unable to extract user hash')
-            return False
-
-        challenge_req = [
-            user_hash,
-            None, 1, None, [1, None, None, None, [password, None, True]],
-            [
-                None, None, [2, 1, None, 1, 'https://accounts.google.com/ServiceLogin?passive=true&continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Fnext%3D%252F%26action_handle_signin%3Dtrue%26hl%3Den%26app%3Ddesktop%26feature%3Dsign_in_button&hl=en&service=youtube&uilel=3&requestPath=%2FServiceLogin&Page=PasswordSeparationSignIn', None, [], 4],
-                1, [None, None, []], None, None, None, True
-            ]]
-
-        challenge_results = req(
-            self._CHALLENGE_URL, challenge_req,
-            'Logging in', 'Unable to log in')
-
-        if challenge_results is False:
-            return
-
-        login_res = try_get(challenge_results, lambda x: x[0][5], list)
-        if login_res:
-            login_msg = try_get(login_res, lambda x: x[5], compat_str)
-            warn(
-                'Unable to login: %s' % 'Invalid password'
-                if login_msg == 'INCORRECT_ANSWER_ENTERED' else login_msg)
-            return False
-
-        res = try_get(challenge_results, lambda x: x[0][-1], list)
-        if not res:
-            warn('Unable to extract result entry')
-            return False
-
-        login_challenge = try_get(res, lambda x: x[0][0], list)
-        if login_challenge:
-            challenge_str = try_get(login_challenge, lambda x: x[2], compat_str)
-            if challenge_str == 'TWO_STEP_VERIFICATION':
-                # SEND_SUCCESS - TFA code has been successfully sent to phone
-                # QUOTA_EXCEEDED - reached the limit of TFA codes
-                status = try_get(login_challenge, lambda x: x[5], compat_str)
-                if status == 'QUOTA_EXCEEDED':
-                    warn('Exceeded the limit of TFA codes, try later')
-                    return False
-
-                tl = try_get(challenge_results, lambda x: x[1][2], compat_str)
-                if not tl:
-                    warn('Unable to extract TL')
-                    return False
-
-                tfa_code = self._get_tfa_info('2-step verification code')
-
-                if not tfa_code:
-                    warn(
-                        'Two-factor authentication required. Provide it either interactively or with --twofactor <code>'
-                        '(Note that only TOTP (Google Authenticator App) codes work at this time.)')
-                    return False
-
-                tfa_code = remove_start(tfa_code, 'G-')
-
-                tfa_req = [
-                    user_hash, None, 2, None,
-                    [
-                        9, None, None, None, None, None, None, None,
-                        [None, tfa_code, True, 2]
-                    ]]
-
-                tfa_results = req(
-                    self._TFA_URL.format(tl), tfa_req,
-                    'Submitting TFA code', 'Unable to submit TFA code')
-
-                if tfa_results is False:
-                    return False
-
-                tfa_res = try_get(tfa_results, lambda x: x[0][5], list)
-                if tfa_res:
-                    tfa_msg = try_get(tfa_res, lambda x: x[5], compat_str)
-                    warn(
-                        'Unable to finish TFA: %s' % 'Invalid TFA code'
-                        if tfa_msg == 'INCORRECT_ANSWER_ENTERED' else tfa_msg)
-                    return False
-
-                check_cookie_url = try_get(
-                    tfa_results, lambda x: x[0][-1][2], compat_str)
-            else:
-                CHALLENGES = {
-                    'LOGIN_CHALLENGE': "This device isn't recognized. For your security, Google wants to make sure it's really you.",
-                    'USERNAME_RECOVERY': 'Please provide additional information to aid in the recovery process.',
-                    'REAUTH': "There is something unusual about your activity. For your security, Google wants to make sure it's really you.",
-                }
-                challenge = CHALLENGES.get(
-                    challenge_str,
-                    '%s returned error %s.' % (self.IE_NAME, challenge_str))
-                warn('%s\nGo to https://accounts.google.com/, login and solve a challenge.' % challenge)
-                return False
-        else:
-            check_cookie_url = try_get(res, lambda x: x[2], compat_str)
-
-        if not check_cookie_url:
-            warn('Unable to extract CheckCookie URL')
-            return False
-
-        check_cookie_results = self._download_webpage(
-            check_cookie_url, None, 'Checking cookie', fatal=False)
-
-        if check_cookie_results is False:
-            return False
-
-        if 'https://myaccount.google.com/' not in check_cookie_results:
-            warn('Unable to log in')
-            return False
-
-        return True
-
-    def _download_webpage_handle(self, *args, **kwargs):
-        query = kwargs.get('query', {}).copy()
-        query['disable_polymer'] = 'true'
-        kwargs['query'] = query
-        return super(YoutubeBaseInfoExtractor, self)._download_webpage_handle(
-            *args, **compat_kwargs(kwargs))
-
-    def _real_initialize(self):
-        if self._downloader is None:
-            return
-        self._set_language()
-        if not self._login():
-            return
-
-
-class YoutubeEntryListBaseInfoExtractor(YoutubeBaseInfoExtractor):
-    # Extract entries from page with "Load more" button
-    def _entries(self, page, playlist_id):
-        more_widget_html = content_html = page
-        for page_num in itertools.count(1):
-            for entry in self._process_page(content_html):
-                yield entry
-
-            mobj = re.search(r'data-uix-load-more-href="/?(?P<more>[^"]+)"', more_widget_html)
-            if not mobj:
-                break
-
-            count = 0
-            retries = 3
-            while count <= retries:
-                try:
-                    # Downloading page may result in intermittent 5xx HTTP error
-                    # that is usually worked around with a retry
-                    more = self._download_json(
-                        'https://youtube.com/%s' % mobj.group('more'), playlist_id,
-                        'Downloading page #%s%s'
-                        % (page_num, ' (retry #%d)' % count if count else ''),
-                        transform_source=uppercase_escape)
-                    break
-                except ExtractorError as e:
-                    if isinstance(e.cause, compat_HTTPError) and e.cause.code in (500, 503):
-                        count += 1
-                        if count <= retries:
-                            continue
-                    raise
-
-            content_html = more['content_html']
-            if not content_html.strip():
-                # Some webpages show a "Load more" button but they don't
-                # have more videos
-                break
-            more_widget_html = more['load_more_widget_html']
-
-
-class YoutubePlaylistBaseInfoExtractor(YoutubeEntryListBaseInfoExtractor):
-    def _process_page(self, content):
-        for video_id, video_title in self.extract_videos_from_page(content):
-            yield self.url_result(video_id, 'Youtube', video_id, video_title)
-
-    def extract_videos_from_page_impl(self, video_re, page, ids_in_page, titles_in_page):
-        for mobj in re.finditer(video_re, page):
-            # The link with index 0 is not the first video of the playlist (not sure if still actual)
-            if 'index' in mobj.groupdict() and mobj.group('id') == '0':
-                continue
-            video_id = mobj.group('id')
-            video_title = unescapeHTML(
-                mobj.group('title')) if 'title' in mobj.groupdict() else None
-            if video_title:
-                video_title = video_title.strip()
-            if video_title == '► Play all':
-                video_title = None
-            try:
-                idx = ids_in_page.index(video_id)
-                if video_title and not titles_in_page[idx]:
-                    titles_in_page[idx] = video_title
-            except ValueError:
-                ids_in_page.append(video_id)
-                titles_in_page.append(video_title)
-
-    def extract_videos_from_page(self, page):
-        ids_in_page = []
-        titles_in_page = []
-        self.extract_videos_from_page_impl(
-            self._VIDEO_RE, page, ids_in_page, titles_in_page)
-        return zip(ids_in_page, titles_in_page)
-
-
-class YoutubePlaylistsBaseInfoExtractor(YoutubeEntryListBaseInfoExtractor):
-    def _process_page(self, content):
-        for playlist_id in orderedSet(re.findall(
-                r'<h3[^>]+class="[^"]*yt-lockup-title[^"]*"[^>]*><a[^>]+href="/?playlist\?list=([0-9A-Za-z-_]{10,})"',
-                content)):
-            yield self.url_result(
-                'https://www.youtube.com/playlist?list=%s' % playlist_id, 'YoutubePlaylist')
-
-    def _real_extract(self, url):
-        playlist_id = self._match_id(url)
-        webpage = self._download_webpage(url, playlist_id)
-        title = self._og_search_title(webpage, fatal=False)
-        return self.playlist_result(self._entries(webpage, playlist_id), playlist_id, title)
-
-
-class YoutubeIE(YoutubeBaseInfoExtractor):
-    IE_DESC = 'YouTube.com'
-    _VALID_URL = r"""(?x)^
-                     (
-                         (?:https?://|//)                                    # http(s):// or protocol-independent URL
-                         (?:(?:(?:(?:\w+\.)?[yY][oO][uU][tT][uU][bB][eE](?:-nocookie)?\.com/|
-                            (?:www\.)?deturl\.com/www\.youtube\.com/|
-                            (?:www\.)?pwnyoutube\.com/|
-                            (?:www\.)?hooktube\.com/|
-                            (?:www\.)?yourepeat\.com/|
-                            tube\.majestyc\.net/|
-                            # Invidious instances taken from https://github.com/omarroth/invidious/wiki/Invidious-Instances
-                            (?:(?:www|dev)\.)?invidio\.us/|
-                            (?:(?:www|no)\.)?invidiou\.sh/|
-                            (?:(?:www|fi|de)\.)?invidious\.snopyta\.org/|
-                            (?:www\.)?invidious\.kabi\.tk/|
-                            (?:www\.)?invidious\.enkirton\.net/|
-                            (?:www\.)?invidious\.13ad\.de/|
-                            (?:www\.)?invidious\.mastodon\.host/|
-                            (?:www\.)?invidious\.nixnet\.xyz/|
-                            (?:www\.)?tube\.poal\.co/|
-                            (?:www\.)?vid\.wxzm\.sx/|
-                            (?:www\.)?yt\.elukerio\.org/|
-                            (?:www\.)?kgg2m7yk5aybusll\.onion/|
-                            (?:www\.)?qklhadlycap4cnod\.onion/|
-                            (?:www\.)?axqzx4s6s54s32yentfqojs3x5i7faxza6xo3ehd4bzzsg2ii4fv2iid\.onion/|
-                            (?:www\.)?c7hqkpkpemu6e7emz5b4vyz7idjgdvgaaa3dyimmeojqbgpea3xqjoid\.onion/|
-                            (?:www\.)?fz253lmuao3strwbfbmx46yu7acac2jz27iwtorgmbqlkurlclmancad\.onion/|
-                            (?:www\.)?invidious\.l4qlywnpwqsluw65ts7md3khrivpirse744un3x7mlskqauz5pyuzgqd\.onion/|
-                            youtube\.googleapis\.com/)                        # the various hostnames, with wildcard subdomains
-                         (?:.*?\#/)?                                          # handle anchor (#/) redirect urls
-                         (?:                                                  # the various things that can precede the ID:
-                             (?:(?:v|embed|e)/(?!videoseries))                # v/ or embed/ or e/
-                             |(?:                                             # or the v= param in all its forms
-                                 (?:(?:watch|movie)(?:_popup)?(?:\.php)?/?)?  # preceding watch(_popup|.php) or nothing (like /?v=xxxx)
-                                 (?:\?|\#!?)                                  # the params delimiter ? or # or #!
-                                 (?:.*?[&;])??                                # any other preceding param (like /?s=tuff&v=xxxx or ?s=tuff&amp;v=V36LpHqtcDY)
-                                 v=
-                             )
-                         ))
-                         |(?:
-                            youtu\.be|                                        # just youtu.be/xxxx
-                            vid\.plus|                                        # or vid.plus/xxxx
-                            zwearz\.com/watch|                                # or zwearz.com/watch/xxxx
-                         )/
-                         |(?:www\.)?cleanvideosearch\.com/media/action/yt/watch\?videoId=
-                         )
-                     )?                                                       # all until now is optional -> you can pass the naked ID
-                     ([0-9A-Za-z_-]{11})                                      # here is it! the YouTube video ID
-                     (?!.*?\blist=
-                        (?:
-                            %(playlist_id)s|                                  # combined list/video URLs are handled by the playlist IE
-                            WL                                                # WL are handled by the watch later IE
-                        )
-                     )
-                     (?(1).+)?                                                # if we found the ID, everything can follow
-                     $""" % {'playlist_id': YoutubeBaseInfoExtractor._PLAYLIST_ID_RE}
-    _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
-    _formats = {
-        '5': {'ext': 'flv', 'width': 400, 'height': 240, 'acodec': 'mp3', 'abr': 64, 'vcodec': 'h263'},
-        '6': {'ext': 'flv', 'width': 450, 'height': 270, 'acodec': 'mp3', 'abr': 64, 'vcodec': 'h263'},
-        '13': {'ext': '3gp', 'acodec': 'aac', 'vcodec': 'mp4v'},
-        '17': {'ext': '3gp', 'width': 176, 'height': 144, 'acodec': 'aac', 'abr': 24, 'vcodec': 'mp4v'},
-        '18': {'ext': 'mp4', 'width': 640, 'height': 360, 'acodec': 'aac', 'abr': 96, 'vcodec': 'h264'},
-        '22': {'ext': 'mp4', 'width': 1280, 'height': 720, 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264'},
-        '34': {'ext': 'flv', 'width': 640, 'height': 360, 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264'},
-        '35': {'ext': 'flv', 'width': 854, 'height': 480, 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264'},
-        # itag 36 videos are either 320x180 (BaW_jenozKc) or 320x240 (__2ABJjxzNo), abr varies as well
-        '36': {'ext': '3gp', 'width': 320, 'acodec': 'aac', 'vcodec': 'mp4v'},
-        '37': {'ext': 'mp4', 'width': 1920, 'height': 1080, 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264'},
-        '38': {'ext': 'mp4', 'width': 4096, 'height': 3072, 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264'},
-        '43': {'ext': 'webm', 'width': 640, 'height': 360, 'acodec': 'vorbis', 'abr': 128, 'vcodec': 'vp8'},
-        '44': {'ext': 'webm', 'width': 854, 'height': 480, 'acodec': 'vorbis', 'abr': 128, 'vcodec': 'vp8'},
-        '45': {'ext': 'webm', 'width': 1280, 'height': 720, 'acodec': 'vorbis', 'abr': 192, 'vcodec': 'vp8'},
-        '46': {'ext': 'webm', 'width': 1920, 'height': 1080, 'acodec': 'vorbis', 'abr': 192, 'vcodec': 'vp8'},
-        '59': {'ext': 'mp4', 'width': 854, 'height': 480, 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264'},
-        '78': {'ext': 'mp4', 'width': 854, 'height': 480, 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264'},
-
-
-        # 3D videos
-        '82': {'ext': 'mp4', 'height': 360, 'format_note': '3D', 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264', 'preference': -20},
-        '83': {'ext': 'mp4', 'height': 480, 'format_note': '3D', 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264', 'preference': -20},
-        '84': {'ext': 'mp4', 'height': 720, 'format_note': '3D', 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264', 'preference': -20},
-        '85': {'ext': 'mp4', 'height': 1080, 'format_note': '3D', 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264', 'preference': -20},
-        '100': {'ext': 'webm', 'height': 360, 'format_note': '3D', 'acodec': 'vorbis', 'abr': 128, 'vcodec': 'vp8', 'preference': -20},
-        '101': {'ext': 'webm', 'height': 480, 'format_note': '3D', 'acodec': 'vorbis', 'abr': 192, 'vcodec': 'vp8', 'preference': -20},
-        '102': {'ext': 'webm', 'height': 720, 'format_note': '3D', 'acodec': 'vorbis', 'abr': 192, 'vcodec': 'vp8', 'preference': -20},
-
-        # Apple HTTP Live Streaming
-        '91': {'ext': 'mp4', 'height': 144, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 48, 'vcodec': 'h264', 'preference': -10},
-        '92': {'ext': 'mp4', 'height': 240, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 48, 'vcodec': 'h264', 'preference': -10},
-        '93': {'ext': 'mp4', 'height': 360, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264', 'preference': -10},
-        '94': {'ext': 'mp4', 'height': 480, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264', 'preference': -10},
-        '95': {'ext': 'mp4', 'height': 720, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 256, 'vcodec': 'h264', 'preference': -10},
-        '96': {'ext': 'mp4', 'height': 1080, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 256, 'vcodec': 'h264', 'preference': -10},
-        '132': {'ext': 'mp4', 'height': 240, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 48, 'vcodec': 'h264', 'preference': -10},
-        '151': {'ext': 'mp4', 'height': 72, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 24, 'vcodec': 'h264', 'preference': -10},
-
-        # DASH mp4 video
-        '133': {'ext': 'mp4', 'height': 240, 'format_note': 'DASH video', 'vcodec': 'h264'},
-        '134': {'ext': 'mp4', 'height': 360, 'format_note': 'DASH video', 'vcodec': 'h264'},
-        '135': {'ext': 'mp4', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'h264'},
-        '136': {'ext': 'mp4', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'h264'},
-        '137': {'ext': 'mp4', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'h264'},
-        '138': {'ext': 'mp4', 'format_note': 'DASH video', 'vcodec': 'h264'},  # Height can vary (https://github.com/ytdl-org/youtube-dl/issues/4559)
-        '160': {'ext': 'mp4', 'height': 144, 'format_note': 'DASH video', 'vcodec': 'h264'},
-        '212': {'ext': 'mp4', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'h264'},
-        '264': {'ext': 'mp4', 'height': 1440, 'format_note': 'DASH video', 'vcodec': 'h264'},
-        '298': {'ext': 'mp4', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'h264', 'fps': 60},
-        '299': {'ext': 'mp4', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'h264', 'fps': 60},
-        '266': {'ext': 'mp4', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'h264'},
-
-        # Dash mp4 audio
-        '139': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'abr': 48, 'container': 'm4a_dash'},
-        '140': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'abr': 128, 'container': 'm4a_dash'},
-        '141': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'abr': 256, 'container': 'm4a_dash'},
-        '256': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'container': 'm4a_dash'},
-        '258': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'container': 'm4a_dash'},
-        '325': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'dtse', 'container': 'm4a_dash'},
-        '328': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'ec-3', 'container': 'm4a_dash'},
-
-        # Dash webm
-        '167': {'ext': 'webm', 'height': 360, 'width': 640, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
-        '168': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
-        '169': {'ext': 'webm', 'height': 720, 'width': 1280, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
-        '170': {'ext': 'webm', 'height': 1080, 'width': 1920, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
-        '218': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
-        '219': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
-        '278': {'ext': 'webm', 'height': 144, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp9'},
-        '242': {'ext': 'webm', 'height': 240, 'format_note': 'DASH video', 'vcodec': 'vp9'},
-        '243': {'ext': 'webm', 'height': 360, 'format_note': 'DASH video', 'vcodec': 'vp9'},
-        '244': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'vp9'},
-        '245': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'vp9'},
-        '246': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'vp9'},
-        '247': {'ext': 'webm', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'vp9'},
-        '248': {'ext': 'webm', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'vp9'},
-        '271': {'ext': 'webm', 'height': 1440, 'format_note': 'DASH video', 'vcodec': 'vp9'},
-        # itag 272 videos are either 3840x2160 (e.g. RtoitU2A-3E) or 7680x4320 (sLprVF6d7Ug)
-        '272': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'vp9'},
-        '302': {'ext': 'webm', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60},
-        '303': {'ext': 'webm', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60},
-        '308': {'ext': 'webm', 'height': 1440, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60},
-        '313': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'vp9'},
-        '315': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60},
-
-        # Dash webm audio
-        '171': {'ext': 'webm', 'acodec': 'vorbis', 'format_note': 'DASH audio', 'abr': 128},
-        '172': {'ext': 'webm', 'acodec': 'vorbis', 'format_note': 'DASH audio', 'abr': 256},
-
-        # Dash webm audio with opus inside
-        '249': {'ext': 'webm', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 50},
-        '250': {'ext': 'webm', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 70},
-        '251': {'ext': 'webm', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 160},
-
-        # RTMP (unnamed)
-        '_rtmp': {'protocol': 'rtmp'},
-
-        # av01 video only formats sometimes served with "unknown" codecs
-        '394': {'acodec': 'none', 'vcodec': 'av01.0.05M.08'},
-        '395': {'acodec': 'none', 'vcodec': 'av01.0.05M.08'},
-        '396': {'acodec': 'none', 'vcodec': 'av01.0.05M.08'},
-        '397': {'acodec': 'none', 'vcodec': 'av01.0.05M.08'},
-    }
-    _SUBTITLE_FORMATS = ('srv1', 'srv2', 'srv3', 'ttml', 'vtt')
-
-    _GEO_BYPASS = False
-
-    IE_NAME = 'youtube'
-    _TESTS = [
-        {
-            'url': 'https://www.youtube.com/watch?v=BaW_jenozKc&t=1s&end=9',
-            'info_dict': {
-                'id': 'BaW_jenozKc',
-                'ext': 'mp4',
-                'title': 'youtube-dl test video "\'/\\ä↭𝕐',
-                'uploader': 'Philipp Hagemeister',
-                'uploader_id': 'phihag',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/phihag',
-                'channel_id': 'UCLqxVugv74EIW3VWh2NOa3Q',
-                'channel_url': r're:https?://(?:www\.)?youtube\.com/channel/UCLqxVugv74EIW3VWh2NOa3Q',
-                'upload_date': '20121002',
-                'description': 'test chars:  "\'/\\ä↭𝕐\ntest URL: https://github.com/rg3/youtube-dl/issues/1892\n\nThis is a test video for youtube-dl.\n\nFor more information, contact phihag@phihag.de .',
-                'categories': ['Science & Technology'],
-                'tags': ['youtube-dl'],
-                'duration': 10,
-                'view_count': int,
-                'like_count': int,
-                'dislike_count': int,
-                'start_time': 1,
-                'end_time': 9,
-            }
-        },
-        {
-            'url': 'https://www.youtube.com/watch?v=UxxajLWwzqY',
-            'note': 'Test generic use_cipher_signature video (#897)',
-            'info_dict': {
-                'id': 'UxxajLWwzqY',
-                'ext': 'mp4',
-                'upload_date': '20120506',
-                'title': 'Icona Pop - I Love It (feat. Charli XCX) [OFFICIAL VIDEO]',
-                'alt_title': 'I Love It (feat. Charli XCX)',
-                'description': 'md5:f3ceb5ef83a08d95b9d146f973157cc8',
-                'tags': ['Icona Pop i love it', 'sweden', 'pop music', 'big beat records', 'big beat', 'charli',
-                         'xcx', 'charli xcx', 'girls', 'hbo', 'i love it', "i don't care", 'icona', 'pop',
-                         'iconic ep', 'iconic', 'love', 'it'],
-                'duration': 180,
-                'uploader': 'Icona Pop',
-                'uploader_id': 'IconaPop',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/IconaPop',
-                'creator': 'Icona Pop',
-                'track': 'I Love It (feat. Charli XCX)',
-                'artist': 'Icona Pop',
-            }
-        },
-        {
-            'url': 'https://www.youtube.com/watch?v=07FYdnEawAQ',
-            'note': 'Test VEVO video with age protection (#956)',
-            'info_dict': {
-                'id': '07FYdnEawAQ',
-                'ext': 'mp4',
-                'upload_date': '20130703',
-                'title': 'Justin Timberlake - Tunnel Vision (Official Music Video) (Explicit)',
-                'alt_title': 'Tunnel Vision',
-                'description': 'md5:07dab3356cde4199048e4c7cd93471e1',
-                'duration': 419,
-                'uploader': 'justintimberlakeVEVO',
-                'uploader_id': 'justintimberlakeVEVO',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/justintimberlakeVEVO',
-                'creator': 'Justin Timberlake',
-                'track': 'Tunnel Vision',
-                'artist': 'Justin Timberlake',
-                'age_limit': 18,
-            }
-        },
-        {
-            'url': '//www.YouTube.com/watch?v=yZIXLfi8CZQ',
-            'note': 'Embed-only video (#1746)',
-            'info_dict': {
-                'id': 'yZIXLfi8CZQ',
-                'ext': 'mp4',
-                'upload_date': '20120608',
-                'title': 'Principal Sexually Assaults A Teacher - Episode 117 - 8th June 2012',
-                'description': 'md5:09b78bd971f1e3e289601dfba15ca4f7',
-                'uploader': 'SET India',
-                'uploader_id': 'setindia',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/setindia',
-                'age_limit': 18,
-            }
-        },
-        {
-            'url': 'https://www.youtube.com/watch?v=BaW_jenozKc&v=UxxajLWwzqY',
-            'note': 'Use the first video ID in the URL',
-            'info_dict': {
-                'id': 'BaW_jenozKc',
-                'ext': 'mp4',
-                'title': 'youtube-dl test video "\'/\\ä↭𝕐',
-                'uploader': 'Philipp Hagemeister',
-                'uploader_id': 'phihag',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/phihag',
-                'upload_date': '20121002',
-                'description': 'test chars:  "\'/\\ä↭𝕐\ntest URL: https://github.com/rg3/youtube-dl/issues/1892\n\nThis is a test video for youtube-dl.\n\nFor more information, contact phihag@phihag.de .',
-                'categories': ['Science & Technology'],
-                'tags': ['youtube-dl'],
-                'duration': 10,
-                'view_count': int,
-                'like_count': int,
-                'dislike_count': int,
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            'url': 'https://www.youtube.com/watch?v=a9LDPn-MO4I',
-            'note': '256k DASH audio (format 141) via DASH manifest',
-            'info_dict': {
-                'id': 'a9LDPn-MO4I',
-                'ext': 'm4a',
-                'upload_date': '20121002',
-                'uploader_id': '8KVIDEO',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/8KVIDEO',
-                'description': '',
-                'uploader': '8KVIDEO',
-                'title': 'UHDTV TEST 8K VIDEO.mp4'
-            },
-            'params': {
-                'youtube_include_dash_manifest': True,
-                'format': '141',
-            },
-            'skip': 'format 141 not served anymore',
-        },
-        # DASH manifest with encrypted signature
-        {
-            'url': 'https://www.youtube.com/watch?v=IB3lcPjvWLA',
-            'info_dict': {
-                'id': 'IB3lcPjvWLA',
-                'ext': 'm4a',
-                'title': 'Afrojack, Spree Wilson - The Spark (Official Music Video) ft. Spree Wilson',
-                'description': 'md5:8f5e2b82460520b619ccac1f509d43bf',
-                'duration': 244,
-                'uploader': 'AfrojackVEVO',
-                'uploader_id': 'AfrojackVEVO',
-                'upload_date': '20131011',
-            },
-            'params': {
-                'youtube_include_dash_manifest': True,
-                'format': '141/bestaudio[ext=m4a]',
-            },
-        },
-        # JS player signature function name containing $
-        {
-            'url': 'https://www.youtube.com/watch?v=nfWlot6h_JM',
-            'info_dict': {
-                'id': 'nfWlot6h_JM',
-                'ext': 'm4a',
-                'title': 'Taylor Swift - Shake It Off',
-                'description': 'md5:bec2185232c05479482cb5a9b82719bf',
-                'duration': 242,
-                'uploader': 'TaylorSwiftVEVO',
-                'uploader_id': 'TaylorSwiftVEVO',
-                'upload_date': '20140818',
-                'creator': 'Taylor Swift',
-            },
-            'params': {
-                'youtube_include_dash_manifest': True,
-                'format': '141/bestaudio[ext=m4a]',
-            },
-        },
-        # Controversy video
-        {
-            'url': 'https://www.youtube.com/watch?v=T4XJQO3qol8',
-            'info_dict': {
-                'id': 'T4XJQO3qol8',
-                'ext': 'mp4',
-                'duration': 219,
-                'upload_date': '20100909',
-                'uploader': 'Amazing Atheist',
-                'uploader_id': 'TheAmazingAtheist',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/TheAmazingAtheist',
-                'title': 'Burning Everyone\'s Koran',
-                'description': 'SUBSCRIBE: http://www.youtube.com/saturninefilms\n\nEven Obama has taken a stand against freedom on this issue: http://www.huffingtonpost.com/2010/09/09/obama-gma-interview-quran_n_710282.html',
-            }
-        },
-        # Normal age-gate video (No vevo, embed allowed)
-        {
-            'url': 'https://youtube.com/watch?v=HtVdAasjOgU',
-            'info_dict': {
-                'id': 'HtVdAasjOgU',
-                'ext': 'mp4',
-                'title': 'The Witcher 3: Wild Hunt - The Sword Of Destiny Trailer',
-                'description': r're:(?s).{100,}About the Game\n.*?The Witcher 3: Wild Hunt.{100,}',
-                'duration': 142,
-                'uploader': 'The Witcher',
-                'uploader_id': 'WitcherGame',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/WitcherGame',
-                'upload_date': '20140605',
-                'age_limit': 18,
-            },
-        },
-        # Age-gate video with encrypted signature
-        {
-            'url': 'https://www.youtube.com/watch?v=6kLq3WMV1nU',
-            'info_dict': {
-                'id': '6kLq3WMV1nU',
-                'ext': 'mp4',
-                'title': 'Dedication To My Ex (Miss That) (Lyric Video)',
-                'description': 'md5:33765bb339e1b47e7e72b5490139bb41',
-                'duration': 246,
-                'uploader': 'LloydVEVO',
-                'uploader_id': 'LloydVEVO',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/LloydVEVO',
-                'upload_date': '20110629',
-                'age_limit': 18,
-            },
-        },
-        # video_info is None (https://github.com/ytdl-org/youtube-dl/issues/4421)
-        # YouTube Red ad is not captured for creator
-        {
-            'url': '__2ABJjxzNo',
-            'info_dict': {
-                'id': '__2ABJjxzNo',
-                'ext': 'mp4',
-                'duration': 266,
-                'upload_date': '20100430',
-                'uploader_id': 'deadmau5',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/deadmau5',
-                'creator': 'deadmau5',
-                'description': 'md5:12c56784b8032162bb936a5f76d55360',
-                'uploader': 'deadmau5',
-                'title': 'Deadmau5 - Some Chords (HD)',
-                'alt_title': 'Some Chords',
-            },
-            'expected_warnings': [
-                'DASH manifest missing',
-            ]
-        },
-        # Olympics (https://github.com/ytdl-org/youtube-dl/issues/4431)
-        {
-            'url': 'lqQg6PlCWgI',
-            'info_dict': {
-                'id': 'lqQg6PlCWgI',
-                'ext': 'mp4',
-                'duration': 6085,
-                'upload_date': '20150827',
-                'uploader_id': 'olympic',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/olympic',
-                'description': 'HO09  - Women -  GER-AUS - Hockey - 31 July 2012 - London 2012 Olympic Games',
-                'uploader': 'Olympic',
-                'title': 'Hockey - Women -  GER-AUS - London 2012 Olympic Games',
-            },
-            'params': {
-                'skip_download': 'requires avconv',
-            }
-        },
-        # Non-square pixels
-        {
-            'url': 'https://www.youtube.com/watch?v=_b-2C3KPAM0',
-            'info_dict': {
-                'id': '_b-2C3KPAM0',
-                'ext': 'mp4',
-                'stretched_ratio': 16 / 9.,
-                'duration': 85,
-                'upload_date': '20110310',
-                'uploader_id': 'AllenMeow',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/AllenMeow',
-                'description': 'made by Wacom from Korea | 字幕&加油添醋 by TY\'s Allen | 感謝heylisa00cavey1001同學熱情提供梗及翻譯',
-                'uploader': '孫ᄋᄅ',
-                'title': '[A-made] 變態妍字幕版 太妍 我就是這樣的人',
-            },
-        },
-        # url_encoded_fmt_stream_map is empty string
-        {
-            'url': 'qEJwOuvDf7I',
-            'info_dict': {
-                'id': 'qEJwOuvDf7I',
-                'ext': 'webm',
-                'title': 'Обсуждение судебной практики по выборам 14 сентября 2014 года в Санкт-Петербурге',
-                'description': '',
-                'upload_date': '20150404',
-                'uploader_id': 'spbelect',
-                'uploader': 'Наблюдатели Петербурга',
-            },
-            'params': {
-                'skip_download': 'requires avconv',
-            },
-            'skip': 'This live event has ended.',
-        },
-        # Extraction from multiple DASH manifests (https://github.com/ytdl-org/youtube-dl/pull/6097)
-        {
-            'url': 'https://www.youtube.com/watch?v=FIl7x6_3R5Y',
-            'info_dict': {
-                'id': 'FIl7x6_3R5Y',
-                'ext': 'webm',
-                'title': 'md5:7b81415841e02ecd4313668cde88737a',
-                'description': 'md5:116377fd2963b81ec4ce64b542173306',
-                'duration': 220,
-                'upload_date': '20150625',
-                'uploader_id': 'dorappi2000',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/dorappi2000',
-                'uploader': 'dorappi2000',
-                'formats': 'mincount:31',
-            },
-            'skip': 'not actual anymore',
-        },
-        # DASH manifest with segment_list
-        {
-            'url': 'https://www.youtube.com/embed/CsmdDsKjzN8',
-            'md5': '8ce563a1d667b599d21064e982ab9e31',
-            'info_dict': {
-                'id': 'CsmdDsKjzN8',
-                'ext': 'mp4',
-                'upload_date': '20150501',  # According to '<meta itemprop="datePublished"', but in other places it's 20150510
-                'uploader': 'Airtek',
-                'description': 'Retransmisión en directo de la XVIII media maratón de Zaragoza.',
-                'uploader_id': 'UCzTzUmjXxxacNnL8I3m4LnQ',
-                'title': 'Retransmisión XVIII Media maratón Zaragoza 2015',
-            },
-            'params': {
-                'youtube_include_dash_manifest': True,
-                'format': '135',  # bestvideo
-            },
-            'skip': 'This live event has ended.',
-        },
-        {
-            # Multifeed videos (multiple cameras), URL is for Main Camera
-            'url': 'https://www.youtube.com/watch?v=jqWvoWXjCVs',
-            'info_dict': {
-                'id': 'jqWvoWXjCVs',
-                'title': 'teamPGP: Rocket League Noob Stream',
-                'description': 'md5:dc7872fb300e143831327f1bae3af010',
-            },
-            'playlist': [{
-                'info_dict': {
-                    'id': 'jqWvoWXjCVs',
-                    'ext': 'mp4',
-                    'title': 'teamPGP: Rocket League Noob Stream (Main Camera)',
-                    'description': 'md5:dc7872fb300e143831327f1bae3af010',
-                    'duration': 7335,
-                    'upload_date': '20150721',
-                    'uploader': 'Beer Games Beer',
-                    'uploader_id': 'beergamesbeer',
-                    'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/beergamesbeer',
-                    'license': 'Standard YouTube License',
-                },
-            }, {
-                'info_dict': {
-                    'id': '6h8e8xoXJzg',
-                    'ext': 'mp4',
-                    'title': 'teamPGP: Rocket League Noob Stream (kreestuh)',
-                    'description': 'md5:dc7872fb300e143831327f1bae3af010',
-                    'duration': 7337,
-                    'upload_date': '20150721',
-                    'uploader': 'Beer Games Beer',
-                    'uploader_id': 'beergamesbeer',
-                    'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/beergamesbeer',
-                    'license': 'Standard YouTube License',
-                },
-            }, {
-                'info_dict': {
-                    'id': 'PUOgX5z9xZw',
-                    'ext': 'mp4',
-                    'title': 'teamPGP: Rocket League Noob Stream (grizzle)',
-                    'description': 'md5:dc7872fb300e143831327f1bae3af010',
-                    'duration': 7337,
-                    'upload_date': '20150721',
-                    'uploader': 'Beer Games Beer',
-                    'uploader_id': 'beergamesbeer',
-                    'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/beergamesbeer',
-                    'license': 'Standard YouTube License',
-                },
-            }, {
-                'info_dict': {
-                    'id': 'teuwxikvS5k',
-                    'ext': 'mp4',
-                    'title': 'teamPGP: Rocket League Noob Stream (zim)',
-                    'description': 'md5:dc7872fb300e143831327f1bae3af010',
-                    'duration': 7334,
-                    'upload_date': '20150721',
-                    'uploader': 'Beer Games Beer',
-                    'uploader_id': 'beergamesbeer',
-                    'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/beergamesbeer',
-                    'license': 'Standard YouTube License',
-                },
-            }],
-            'params': {
-                'skip_download': True,
-            },
-            'skip': 'This video is not available.',
-        },
-        {
-            # Multifeed video with comma in title (see https://github.com/ytdl-org/youtube-dl/issues/8536)
-            'url': 'https://www.youtube.com/watch?v=gVfLd0zydlo',
-            'info_dict': {
-                'id': 'gVfLd0zydlo',
-                'title': 'DevConf.cz 2016 Day 2 Workshops 1 14:00 - 15:30',
-            },
-            'playlist_count': 2,
-            'skip': 'Not multifeed anymore',
-        },
-        {
-            'url': 'https://vid.plus/FlRa-iH7PGw',
-            'only_matching': True,
-        },
-        {
-            'url': 'https://zwearz.com/watch/9lWxNJF-ufM/electra-woman-dyna-girl-official-trailer-grace-helbig.html',
-            'only_matching': True,
-        },
-        {
-            # Title with JS-like syntax "};" (see https://github.com/ytdl-org/youtube-dl/issues/7468)
-            # Also tests cut-off URL expansion in video description (see
-            # https://github.com/ytdl-org/youtube-dl/issues/1892,
-            # https://github.com/ytdl-org/youtube-dl/issues/8164)
-            'url': 'https://www.youtube.com/watch?v=lsguqyKfVQg',
-            'info_dict': {
-                'id': 'lsguqyKfVQg',
-                'ext': 'mp4',
-                'title': '{dark walk}; Loki/AC/Dishonored; collab w/Elflover21',
-                'alt_title': 'Dark Walk - Position Music',
-                'description': 'md5:8085699c11dc3f597ce0410b0dcbb34a',
-                'duration': 133,
-                'upload_date': '20151119',
-                'uploader_id': 'IronSoulElf',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/IronSoulElf',
-                'uploader': 'IronSoulElf',
-                'creator': 'Todd Haberman,  Daniel Law Heath and Aaron Kaplan',
-                'track': 'Dark Walk - Position Music',
-                'artist': 'Todd Haberman,  Daniel Law Heath and Aaron Kaplan',
-                'album': 'Position Music - Production Music Vol. 143 - Dark Walk',
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            # Tags with '};' (see https://github.com/ytdl-org/youtube-dl/issues/7468)
-            'url': 'https://www.youtube.com/watch?v=Ms7iBXnlUO8',
-            'only_matching': True,
-        },
-        {
-            # Video with yt:stretch=17:0
-            'url': 'https://www.youtube.com/watch?v=Q39EVAstoRM',
-            'info_dict': {
-                'id': 'Q39EVAstoRM',
-                'ext': 'mp4',
-                'title': 'Clash Of Clans#14 Dicas De Ataque Para CV 4',
-                'description': 'md5:ee18a25c350637c8faff806845bddee9',
-                'upload_date': '20151107',
-                'uploader_id': 'UCCr7TALkRbo3EtFzETQF1LA',
-                'uploader': 'CH GAMER DROID',
-            },
-            'params': {
-                'skip_download': True,
-            },
-            'skip': 'This video does not exist.',
-        },
-        {
-            # Video licensed under Creative Commons
-            'url': 'https://www.youtube.com/watch?v=M4gD1WSo5mA',
-            'info_dict': {
-                'id': 'M4gD1WSo5mA',
-                'ext': 'mp4',
-                'title': 'md5:e41008789470fc2533a3252216f1c1d1',
-                'description': 'md5:a677553cf0840649b731a3024aeff4cc',
-                'duration': 721,
-                'upload_date': '20150127',
-                'uploader_id': 'BerkmanCenter',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/BerkmanCenter',
-                'uploader': 'The Berkman Klein Center for Internet & Society',
-                'license': 'Creative Commons Attribution license (reuse allowed)',
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            # Channel-like uploader_url
-            'url': 'https://www.youtube.com/watch?v=eQcmzGIKrzg',
-            'info_dict': {
-                'id': 'eQcmzGIKrzg',
-                'ext': 'mp4',
-                'title': 'Democratic Socialism and Foreign Policy | Bernie Sanders',
-                'description': 'md5:dda0d780d5a6e120758d1711d062a867',
-                'duration': 4060,
-                'upload_date': '20151119',
-                'uploader': 'Bernie Sanders',
-                'uploader_id': 'UCH1dpzjCEiGAt8CXkryhkZg',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/channel/UCH1dpzjCEiGAt8CXkryhkZg',
-                'license': 'Creative Commons Attribution license (reuse allowed)',
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            'url': 'https://www.youtube.com/watch?feature=player_embedded&amp;amp;v=V36LpHqtcDY',
-            'only_matching': True,
-        },
-        {
-            # YouTube Red paid video (https://github.com/ytdl-org/youtube-dl/issues/10059)
-            'url': 'https://www.youtube.com/watch?v=i1Ko8UG-Tdo',
-            'only_matching': True,
-        },
-        {
-            # Rental video preview
-            'url': 'https://www.youtube.com/watch?v=yYr8q0y5Jfg',
-            'info_dict': {
-                'id': 'uGpuVWrhIzE',
-                'ext': 'mp4',
-                'title': 'Piku - Trailer',
-                'description': 'md5:c36bd60c3fd6f1954086c083c72092eb',
-                'upload_date': '20150811',
-                'uploader': 'FlixMatrix',
-                'uploader_id': 'FlixMatrixKaravan',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/FlixMatrixKaravan',
-                'license': 'Standard YouTube License',
-            },
-            'params': {
-                'skip_download': True,
-            },
-            'skip': 'This video is not available.',
-        },
-        {
-            # YouTube Red video with episode data
-            'url': 'https://www.youtube.com/watch?v=iqKdEhx-dD4',
-            'info_dict': {
-                'id': 'iqKdEhx-dD4',
-                'ext': 'mp4',
-                'title': 'Isolation - Mind Field (Ep 1)',
-                'description': 'md5:46a29be4ceffa65b92d277b93f463c0f',
-                'duration': 2085,
-                'upload_date': '20170118',
-                'uploader': 'Vsauce',
-                'uploader_id': 'Vsauce',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/Vsauce',
-                'series': 'Mind Field',
-                'season_number': 1,
-                'episode_number': 1,
-            },
-            'params': {
-                'skip_download': True,
-            },
-            'expected_warnings': [
-                'Skipping DASH manifest',
-            ],
-        },
-        {
-            # The following content has been identified by the YouTube community
-            # as inappropriate or offensive to some audiences.
-            'url': 'https://www.youtube.com/watch?v=6SJNVb0GnPI',
-            'info_dict': {
-                'id': '6SJNVb0GnPI',
-                'ext': 'mp4',
-                'title': 'Race Differences in Intelligence',
-                'description': 'md5:5d161533167390427a1f8ee89a1fc6f1',
-                'duration': 965,
-                'upload_date': '20140124',
-                'uploader': 'New Century Foundation',
-                'uploader_id': 'UCEJYpZGqgUob0zVVEaLhvVg',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/channel/UCEJYpZGqgUob0zVVEaLhvVg',
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            # itag 212
-            'url': '1t24XAntNCY',
-            'only_matching': True,
-        },
-        {
-            # geo restricted to JP
-            'url': 'sJL6WA-aGkQ',
-            'only_matching': True,
-        },
-        {
-            'url': 'https://www.youtube.com/watch?v=MuAGGZNfUkU&list=RDMM',
-            'only_matching': True,
-        },
-        {
-            'url': 'https://invidio.us/watch?v=BaW_jenozKc',
-            'only_matching': True,
-        },
-        {
-            # DRM protected
-            'url': 'https://www.youtube.com/watch?v=s7_qI6_mIXc',
-            'only_matching': True,
-        },
-        {
-            # Video with unsupported adaptive stream type formats
-            'url': 'https://www.youtube.com/watch?v=Z4Vy8R84T1U',
-            'info_dict': {
-                'id': 'Z4Vy8R84T1U',
-                'ext': 'mp4',
-                'title': 'saman SMAN 53 Jakarta(Sancety) opening COFFEE4th at SMAN 53 Jakarta',
-                'description': 'md5:d41d8cd98f00b204e9800998ecf8427e',
-                'duration': 433,
-                'upload_date': '20130923',
-                'uploader': 'Amelia Putri Harwita',
-                'uploader_id': 'UCpOxM49HJxmC1qCalXyB3_Q',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/channel/UCpOxM49HJxmC1qCalXyB3_Q',
-                'formats': 'maxcount:10',
-            },
-            'params': {
-                'skip_download': True,
-                'youtube_include_dash_manifest': False,
-            },
-        },
-        {
-            # Youtube Music Auto-generated description
-            'url': 'https://music.youtube.com/watch?v=MgNrAu2pzNs',
-            'info_dict': {
-                'id': 'MgNrAu2pzNs',
-                'ext': 'mp4',
-                'title': 'Voyeur Girl',
-                'description': 'md5:7ae382a65843d6df2685993e90a8628f',
-                'upload_date': '20190312',
-                'uploader': 'Various Artists - Topic',
-                'uploader_id': 'UCVWKBi1ELZn0QX2CBLSkiyw',
-                'artist': 'Stephen',
-                'track': 'Voyeur Girl',
-                'album': 'it\'s too much love to know my dear',
-                'release_date': '20190313',
-                'release_year': 2019,
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            # Youtube Music Auto-generated description
-            # Retrieve 'artist' field from 'Artist:' in video description
-            # when it is present on youtube music video
-            'url': 'https://www.youtube.com/watch?v=k0jLE7tTwjY',
-            'info_dict': {
-                'id': 'k0jLE7tTwjY',
-                'ext': 'mp4',
-                'title': 'Latch Feat. Sam Smith',
-                'description': 'md5:3cb1e8101a7c85fcba9b4fb41b951335',
-                'upload_date': '20150110',
-                'uploader': 'Various Artists - Topic',
-                'uploader_id': 'UCNkEcmYdjrH4RqtNgh7BZ9w',
-                'artist': 'Disclosure',
-                'track': 'Latch Feat. Sam Smith',
-                'album': 'Latch Featuring Sam Smith',
-                'release_date': '20121008',
-                'release_year': 2012,
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            # Youtube Music Auto-generated description
-            # handle multiple artists on youtube music video
-            'url': 'https://www.youtube.com/watch?v=74qn0eJSjpA',
-            'info_dict': {
-                'id': '74qn0eJSjpA',
-                'ext': 'mp4',
-                'title': 'Eastside',
-                'description': 'md5:290516bb73dcbfab0dcc4efe6c3de5f2',
-                'upload_date': '20180710',
-                'uploader': 'Benny Blanco - Topic',
-                'uploader_id': 'UCzqz_ksRu_WkIzmivMdIS7A',
-                'artist': 'benny blanco, Halsey, Khalid',
-                'track': 'Eastside',
-                'album': 'Eastside',
-                'release_date': '20180713',
-                'release_year': 2018,
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            # Youtube Music Auto-generated description
-            # handle youtube music video with release_year and no release_date
-            'url': 'https://www.youtube.com/watch?v=-hcAI0g-f5M',
-            'info_dict': {
-                'id': '-hcAI0g-f5M',
-                'ext': 'mp4',
-                'title': 'Put It On Me',
-                'description': 'md5:93c55acc682ae7b0c668f2e34e1c069e',
-                'upload_date': '20180426',
-                'uploader': 'Matt Maeson - Topic',
-                'uploader_id': 'UCnEkIGqtGcQMLk73Kp-Q5LQ',
-                'artist': 'Matt Maeson',
-                'track': 'Put It On Me',
-                'album': 'The Hearse',
-                'release_date': None,
-                'release_year': 2018,
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-    ]
-
-    def __init__(self, *args, **kwargs):
-        super(YoutubeIE, self).__init__(*args, **kwargs)
-        self._player_cache = {}
-
-    def report_video_info_webpage_download(self, video_id):
-        """Report attempt to download video info webpage."""
-        self.to_screen('%s: Downloading video info webpage' % video_id)
-
-    def report_information_extraction(self, video_id):
-        """Report attempt to extract video information."""
-        self.to_screen('%s: Extracting video information' % video_id)
-
-    def report_unavailable_format(self, video_id, format):
-        """Report extracted video URL."""
-        self.to_screen('%s: Format %s not available' % (video_id, format))
-
-    def report_rtmp_download(self):
-        """Indicate the download will use the RTMP protocol."""
-        self.to_screen('RTMP download detected')
-
-    def _signature_cache_id(self, example_sig):
-        """ Return a string representation of a signature """
-        return '.'.join(compat_str(len(part)) for part in example_sig.split('.'))
-
-    def _extract_signature_function(self, video_id, player_url, example_sig):
-        id_m = re.match(
-            r'.*?-(?P<id>[a-zA-Z0-9_-]+)(?:/watch_as3|/html5player(?:-new)?|(?:/[a-z]{2,3}_[A-Z]{2})?/base)?\.(?P<ext>[a-z]+)$',
-            player_url)
-        if not id_m:
-            raise ExtractorError('Cannot identify player %r' % player_url)
-        player_type = id_m.group('ext')
-        player_id = id_m.group('id')
-
-        # Read from filesystem cache
-        func_id = '%s_%s_%s' % (
-            player_type, player_id, self._signature_cache_id(example_sig))
-        assert os.path.basename(func_id) == func_id
-
-        cache_spec = self._downloader.cache.load('youtube-sigfuncs', func_id)
-        if cache_spec is not None:
-            return lambda s: ''.join(s[i] for i in cache_spec)
-
-        download_note = (
-            'Downloading player %s' % player_url
-            if self._downloader.params.get('verbose') else
-            'Downloading %s player %s' % (player_type, player_id)
-        )
-        if player_type == 'js':
-            code = self._download_webpage(
-                player_url, video_id,
-                note=download_note,
-                errnote='Download of %s failed' % player_url)
-            res = self._parse_sig_js(code)
-        elif player_type == 'swf':
-            urlh = self._request_webpage(
-                player_url, video_id,
-                note=download_note,
-                errnote='Download of %s failed' % player_url)
-            code = urlh.read()
-            res = self._parse_sig_swf(code)
-        else:
-            assert False, 'Invalid player type %r' % player_type
-
-        test_string = ''.join(map(compat_chr, range(len(example_sig))))
-        cache_res = res(test_string)
-        cache_spec = [ord(c) for c in cache_res]
-
-        self._downloader.cache.store('youtube-sigfuncs', func_id, cache_spec)
-        return res
-
-    def _print_sig_code(self, func, example_sig):
-        def gen_sig_code(idxs):
-            def _genslice(start, end, step):
-                starts = '' if start == 0 else str(start)
-                ends = (':%d' % (end + step)) if end + step >= 0 else ':'
-                steps = '' if step == 1 else (':%d' % step)
-                return 's[%s%s%s]' % (starts, ends, steps)
-
-            step = None
-            # Quelch pyflakes warnings - start will be set when step is set
-            start = '(Never used)'
-            for i, prev in zip(idxs[1:], idxs[:-1]):
-                if step is not None:
-                    if i - prev == step:
-                        continue
-                    yield _genslice(start, prev, step)
-                    step = None
-                    continue
-                if i - prev in [-1, 1]:
-                    step = i - prev
-                    start = prev
-                    continue
-                else:
-                    yield 's[%d]' % prev
-            if step is None:
-                yield 's[%d]' % i
-            else:
-                yield _genslice(start, i, step)
-
-        test_string = ''.join(map(compat_chr, range(len(example_sig))))
-        cache_res = func(test_string)
-        cache_spec = [ord(c) for c in cache_res]
-        expr_code = ' + '.join(gen_sig_code(cache_spec))
-        signature_id_tuple = '(%s)' % (
-            ', '.join(compat_str(len(p)) for p in example_sig.split('.')))
-        code = ('if tuple(len(p) for p in s.split(\'.\')) == %s:\n'
-                '    return %s\n') % (signature_id_tuple, expr_code)
-        self.to_screen('Extracted signature function:\n' + code)
-
-    def _parse_sig_js(self, jscode):
-        funcname = self._search_regex(
-            (r'\b[cs]\s*&&\s*[adf]\.set\([^,]+\s*,\s*encodeURIComponent\s*\(\s*(?P<sig>[a-zA-Z0-9$]+)\(',
-             r'\b[a-zA-Z0-9]+\s*&&\s*[a-zA-Z0-9]+\.set\([^,]+\s*,\s*encodeURIComponent\s*\(\s*(?P<sig>[a-zA-Z0-9$]+)\(',
-             r'(?P<sig>[a-zA-Z0-9$]+)\s*=\s*function\(\s*a\s*\)\s*{\s*a\s*=\s*a\.split\(\s*""\s*\)',
-             # Obsolete patterns
-             r'(["\'])signature\1\s*,\s*(?P<sig>[a-zA-Z0-9$]+)\(',
-             r'\.sig\|\|(?P<sig>[a-zA-Z0-9$]+)\(',
-             r'yt\.akamaized\.net/\)\s*\|\|\s*.*?\s*[cs]\s*&&\s*[adf]\.set\([^,]+\s*,\s*(?:encodeURIComponent\s*\()?\s*(?P<sig>[a-zA-Z0-9$]+)\(',
-             r'\b[cs]\s*&&\s*[adf]\.set\([^,]+\s*,\s*(?P<sig>[a-zA-Z0-9$]+)\(',
-             r'\b[a-zA-Z0-9]+\s*&&\s*[a-zA-Z0-9]+\.set\([^,]+\s*,\s*(?P<sig>[a-zA-Z0-9$]+)\(',
-             r'\bc\s*&&\s*a\.set\([^,]+\s*,\s*\([^)]*\)\s*\(\s*(?P<sig>[a-zA-Z0-9$]+)\(',
-             r'\bc\s*&&\s*[a-zA-Z0-9]+\.set\([^,]+\s*,\s*\([^)]*\)\s*\(\s*(?P<sig>[a-zA-Z0-9$]+)\(',
-             r'\bc\s*&&\s*[a-zA-Z0-9]+\.set\([^,]+\s*,\s*\([^)]*\)\s*\(\s*(?P<sig>[a-zA-Z0-9$]+)\('),
-            jscode, 'Initial JS player signature function name', group='sig')
-
-        jsi = JSInterpreter(jscode)
-        initial_function = jsi.extract_function(funcname)
-        return lambda s: initial_function([s])
-
-    def _parse_sig_swf(self, file_contents):
-        swfi = SWFInterpreter(file_contents)
-        TARGET_CLASSNAME = 'SignatureDecipher'
-        searched_class = swfi.extract_class(TARGET_CLASSNAME)
-        initial_function = swfi.extract_function(searched_class, 'decipher')
-        return lambda s: initial_function([s])
-
-    def _decrypt_signature(self, s, video_id, player_url, age_gate=False):
-        """Turn the encrypted s field into a working signature"""
-
-        if player_url is None:
-            raise ExtractorError('Cannot decrypt signature without player_url')
-
-        if player_url.startswith('//'):
-            player_url = 'https:' + player_url
-        elif not re.match(r'https?://', player_url):
-            player_url = compat_urlparse.urljoin(
-                'https://www.youtube.com', player_url)
-        try:
-            player_id = (player_url, self._signature_cache_id(s))
-            if player_id not in self._player_cache:
-                func = self._extract_signature_function(
-                    video_id, player_url, s
-                )
-                self._player_cache[player_id] = func
-            func = self._player_cache[player_id]
-            if self._downloader.params.get('youtube_print_sig_code'):
-                self._print_sig_code(func, s)
-            return func(s)
-        except Exception as e:
-            tb = traceback.format_exc()
-            raise ExtractorError(
-                'Signature extraction failed: ' + tb, cause=e)
-
-    def _get_subtitles(self, video_id, webpage):
-        try:
-            subs_doc = self._download_xml(
-                'https://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id,
-                video_id, note=False)
-        except ExtractorError as err:
-            self._downloader.report_warning('unable to download video subtitles: %s' % error_to_compat_str(err))
-            return {}
-
-        sub_lang_list = {}
-        for track in subs_doc.findall('track'):
-            lang = track.attrib['lang_code']
-            if lang in sub_lang_list:
-                continue
-            sub_formats = []
-            for ext in self._SUBTITLE_FORMATS:
-                params = compat_urllib_parse_urlencode({
-                    'lang': lang,
-                    'v': video_id,
-                    'fmt': ext,
-                    'name': track.attrib['name'].encode('utf-8'),
-                })
-                sub_formats.append({
-                    'url': 'https://www.youtube.com/api/timedtext?' + params,
-                    'ext': ext,
-                })
-            sub_lang_list[lang] = sub_formats
-        if not sub_lang_list:
-            self._downloader.report_warning('video doesn\'t have subtitles')
-            return {}
-        return sub_lang_list
-
-    def _get_ytplayer_config(self, video_id, webpage):
-        patterns = (
-            # User data may contain arbitrary character sequences that may affect
-            # JSON extraction with regex, e.g. when '};' is contained the second
-            # regex won't capture the whole JSON. Yet working around by trying more
-            # concrete regex first keeping in mind proper quoted string handling
-            # to be implemented in future that will replace this workaround (see
-            # https://github.com/ytdl-org/youtube-dl/issues/7468,
-            # https://github.com/ytdl-org/youtube-dl/pull/7599)
-            r';ytplayer\.config\s*=\s*({.+?});ytplayer',
-            r';ytplayer\.config\s*=\s*({.+?});',
-        )
-        config = self._search_regex(
-            patterns, webpage, 'ytplayer.config', default=None)
-        if config:
-            return self._parse_json(
-                uppercase_escape(config), video_id, fatal=False)
-
-    def _get_automatic_captions(self, video_id, webpage):
-        """We need the webpage for getting the captions url, pass it as an
-           argument to speed up the process."""
-        self.to_screen('%s: Looking for automatic captions' % video_id)
-        player_config = self._get_ytplayer_config(video_id, webpage)
-        err_msg = 'Couldn\'t find automatic captions for %s' % video_id
-        if not player_config:
-            self._downloader.report_warning(err_msg)
-            return {}
-        try:
-            args = player_config['args']
-            caption_url = args.get('ttsurl')
-            if caption_url:
-                timestamp = args['timestamp']
-                # We get the available subtitles
-                list_params = compat_urllib_parse_urlencode({
-                    'type': 'list',
-                    'tlangs': 1,
-                    'asrs': 1,
-                })
-                list_url = caption_url + '&' + list_params
-                caption_list = self._download_xml(list_url, video_id)
-                original_lang_node = caption_list.find('track')
-                if original_lang_node is None:
-                    self._downloader.report_warning('Video doesn\'t have automatic captions')
-                    return {}
-                original_lang = original_lang_node.attrib['lang_code']
-                caption_kind = original_lang_node.attrib.get('kind', '')
-
-                sub_lang_list = {}
-                for lang_node in caption_list.findall('target'):
-                    sub_lang = lang_node.attrib['lang_code']
-                    sub_formats = []
-                    for ext in self._SUBTITLE_FORMATS:
-                        params = compat_urllib_parse_urlencode({
-                            'lang': original_lang,
-                            'tlang': sub_lang,
-                            'fmt': ext,
-                            'ts': timestamp,
-                            'kind': caption_kind,
-                        })
-                        sub_formats.append({
-                            'url': caption_url + '&' + params,
-                            'ext': ext,
-                        })
-                    sub_lang_list[sub_lang] = sub_formats
-                return sub_lang_list
-
-            def make_captions(sub_url, sub_langs):
-                parsed_sub_url = compat_urllib_parse_urlparse(sub_url)
-                caption_qs = compat_parse_qs(parsed_sub_url.query)
-                captions = {}
-                for sub_lang in sub_langs:
-                    sub_formats = []
-                    for ext in self._SUBTITLE_FORMATS:
-                        caption_qs.update({
-                            'tlang': [sub_lang],
-                            'fmt': [ext],
-                        })
-                        sub_url = compat_urlparse.urlunparse(parsed_sub_url._replace(
-                            query=compat_urllib_parse_urlencode(caption_qs, True)))
-                        sub_formats.append({
-                            'url': sub_url,
-                            'ext': ext,
-                        })
-                    captions[sub_lang] = sub_formats
-                return captions
-
-            # New captions format as of 22.06.2017
-            player_response = args.get('player_response')
-            if player_response and isinstance(player_response, compat_str):
-                player_response = self._parse_json(
-                    player_response, video_id, fatal=False)
-                if player_response:
-                    renderer = player_response['captions']['playerCaptionsTracklistRenderer']
-                    base_url = renderer['captionTracks'][0]['baseUrl']
-                    sub_lang_list = []
-                    for lang in renderer['translationLanguages']:
-                        lang_code = lang.get('languageCode')
-                        if lang_code:
-                            sub_lang_list.append(lang_code)
-                    return make_captions(base_url, sub_lang_list)
-
-            # Some videos don't provide ttsurl but rather caption_tracks and
-            # caption_translation_languages (e.g. 20LmZk1hakA)
-            # Does not used anymore as of 22.06.2017
-            caption_tracks = args['caption_tracks']
-            caption_translation_languages = args['caption_translation_languages']
-            caption_url = compat_parse_qs(caption_tracks.split(',')[0])['u'][0]
-            sub_lang_list = []
-            for lang in caption_translation_languages.split(','):
-                lang_qs = compat_parse_qs(compat_urllib_parse_unquote_plus(lang))
-                sub_lang = lang_qs.get('lc', [None])[0]
-                if sub_lang:
-                    sub_lang_list.append(sub_lang)
-            return make_captions(caption_url, sub_lang_list)
-        # An extractor error can be raise by the download process if there are
-        # no automatic captions but there are subtitles
-        except (KeyError, IndexError, ExtractorError):
-            self._downloader.report_warning(err_msg)
-            return {}
-
-    def _mark_watched(self, video_id, video_info, player_response):
-        playback_url = url_or_none(try_get(
-            player_response,
-            lambda x: x['playbackTracking']['videostatsPlaybackUrl']['baseUrl']) or try_get(
-            video_info, lambda x: x['videostats_playback_base_url'][0]))
-        if not playback_url:
-            return
-        parsed_playback_url = compat_urlparse.urlparse(playback_url)
-        qs = compat_urlparse.parse_qs(parsed_playback_url.query)
-
-        # cpn generation algorithm is reverse engineered from base.js.
-        # In fact it works even with dummy cpn.
-        CPN_ALPHABET = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_'
-        cpn = ''.join((CPN_ALPHABET[random.randint(0, 256) & 63] for _ in range(0, 16)))
-
-        qs.update({
-            'ver': ['2'],
-            'cpn': [cpn],
-        })
-        playback_url = compat_urlparse.urlunparse(
-            parsed_playback_url._replace(query=compat_urllib_parse_urlencode(qs, True)))
-
-        self._download_webpage(
-            playback_url, video_id, 'Marking watched',
-            'Unable to mark watched', fatal=False)
-
-    @staticmethod
-    def _extract_urls(webpage):
-        # Embedded YouTube player
-        entries = [
-            unescapeHTML(mobj.group('url'))
-            for mobj in re.finditer(r'''(?x)
-            (?:
-                <iframe[^>]+?src=|
-                data-video-url=|
-                <embed[^>]+?src=|
-                embedSWF\(?:\s*|
-                <object[^>]+data=|
-                new\s+SWFObject\(
-            )
-            (["\'])
-                (?P<url>(?:https?:)?//(?:www\.)?youtube(?:-nocookie)?\.com/
-                (?:embed|v|p)/[0-9A-Za-z_-]{11}.*?)
-            \1''', webpage)]
-
-        # lazyYT YouTube embed
-        entries.extend(list(map(
-            unescapeHTML,
-            re.findall(r'class="lazyYT" data-youtube-id="([^"]+)"', webpage))))
-
-        # Wordpress "YouTube Video Importer" plugin
-        matches = re.findall(r'''(?x)<div[^>]+
-            class=(?P<q1>[\'"])[^\'"]*\byvii_single_video_player\b[^\'"]*(?P=q1)[^>]+
-            data-video_id=(?P<q2>[\'"])([^\'"]+)(?P=q2)''', webpage)
-        entries.extend(m[-1] for m in matches)
-
-        return entries
-
-    @staticmethod
-    def _extract_url(webpage):
-        urls = YoutubeIE._extract_urls(webpage)
-        return urls[0] if urls else None
-
-    @classmethod
-    def extract_id(cls, url):
-        mobj = re.match(cls._VALID_URL, url, re.VERBOSE)
-        if mobj is None:
-            raise ExtractorError('Invalid URL: %s' % url)
-        video_id = mobj.group(2)
-        return video_id
-
-    @staticmethod
-    def _extract_chapters(description, duration):
-        if not description:
-            return None
-        chapter_lines = re.findall(
-            r'(?:^|<br\s*/>)([^<]*<a[^>]+onclick=["\']yt\.www\.watch\.player\.seekTo[^>]+>(\d{1,2}:\d{1,2}(?::\d{1,2})?)</a>[^>]*)(?=$|<br\s*/>)',
-            description)
-        if not chapter_lines:
-            return None
-        chapters = []
-        for next_num, (chapter_line, time_point) in enumerate(
-                chapter_lines, start=1):
-            start_time = parse_duration(time_point)
-            if start_time is None:
-                continue
-            if start_time > duration:
-                break
-            end_time = (duration if next_num == len(chapter_lines)
-                        else parse_duration(chapter_lines[next_num][1]))
-            if end_time is None:
-                continue
-            if end_time > duration:
-                end_time = duration
-            if start_time > end_time:
-                break
-            chapter_title = re.sub(
-                r'<a[^>]+>[^<]+</a>', '', chapter_line).strip(' \t-')
-            chapter_title = re.sub(r'\s+', ' ', chapter_title)
-            chapters.append({
-                'start_time': start_time,
-                'end_time': end_time,
-                'title': chapter_title,
-            })
-        return chapters
-
-    ul_tag_pattern = re.compile(r'(</?ul)')
-    music_info_pattern = re.compile(r'<h4 class="title">\s*(Song|Music|Artist|Album)\s*</h4>\s*<ul class="content watch-info-tag-list">\s*<li>(?:<a[^>]*>)?([^<]*)(?:</a>)?</li>')
-    def _real_extract(self, url):
-        url, smuggled_data = unsmuggle_url(url, {})
-
-        proto = (
-            'http' if self._downloader.params.get('prefer_insecure', False)
-            else 'https')
-
-        start_time = None
-        end_time = None
-        parsed_url = compat_urllib_parse_urlparse(url)
-        for component in [parsed_url.fragment, parsed_url.query]:
-            query = compat_parse_qs(component)
-            if start_time is None and 't' in query:
-                start_time = parse_duration(query['t'][0])
-            if start_time is None and 'start' in query:
-                start_time = parse_duration(query['start'][0])
-            if end_time is None and 'end' in query:
-                end_time = parse_duration(query['end'][0])
-
-        # Extract original video URL from URL with redirection, like age verification, using next_url parameter
-        mobj = re.search(self._NEXT_URL_RE, url)
-        if mobj:
-            url = proto + '://www.youtube.com/' + compat_urllib_parse_unquote(mobj.group(1)).lstrip('/')
-        video_id = self.extract_id(url)
-
-        # Get video webpage
-        url = proto + '://www.youtube.com/watch?v=%s&gl=US&hl=en&has_verified=1&bpctr=9999999999' % video_id
-        video_webpage = self._download_webpage(url, video_id)
-
-        # Attempt to extract SWF player URL
-        mobj = re.search(r'swfConfig.*?"(https?:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
-        if mobj is not None:
-            player_url = re.sub(r'\\(.)', r'\1', mobj.group(1))
-        else:
-            player_url = None
-
-        dash_mpds = []
-
-        def add_dash_mpd(video_info):
-            dash_mpd = video_info.get('dashmpd')
-            if dash_mpd and dash_mpd[0] not in dash_mpds:
-                dash_mpds.append(dash_mpd[0])
-
-        def add_dash_mpd_pr(pl_response):
-            dash_mpd = url_or_none(try_get(
-                pl_response, lambda x: x['streamingData']['dashManifestUrl'],
-                compat_str))
-            if dash_mpd and dash_mpd not in dash_mpds:
-                dash_mpds.append(dash_mpd)
-
-        is_live = None
-        view_count = None
-
-        def extract_view_count(v_info):
-            return int_or_none(try_get(v_info, lambda x: x['view_count'][0]))
-
-        def extract_token(v_info):
-            return dict_get(v_info, ('account_playback_token', 'accountPlaybackToken', 'token'))
-
-        def extract_player_response(player_response, video_id):
-            pl_response = str_or_none(player_response)
-            if not pl_response:
-                return
-            pl_response = self._parse_json(pl_response, video_id, fatal=False)
-            if isinstance(pl_response, dict):
-                add_dash_mpd_pr(pl_response)
-                return pl_response
-
-        player_response = {}
-
-
-
-        # Is it unlisted?
-        unlisted = ('<span id="watch-privacy-icon"' in video_webpage)
-
-
-        # Related videos
-        related_vids = []
-        try:
-            rvs_match = re.search(r'"rvs":"(.*?)[^\\]"', video_webpage)
-            if rvs_match is not None:
-                rvs = json.loads('"' + rvs_match.group(1) + '"')  # unescape json string (\u0026 for example)
-                related_vid_parts = (compat_parse_qs(related_item) for related_item in rvs.split(","))
-                related_vids = [{key : value[0] for key,value in vid.items()} for vid in related_vid_parts]
-            else:
-                print('Failed to extract related videos: no rvs')
-
-        except Exception:
-            print('Error while extracting related videos:')
-            traceback.print_exc()
-
-
-        # Music list
-        # Test case: https://www.youtube.com/watch?v=jbkZdRglnKY
-        music_list = []
-        metadata_start = video_webpage.find('<ul class="watch-extras-section">')
-        if metadata_start != -1:
-            metadata_start += 33
-            tag_index = metadata_start
-            open_tags = 1
-            while open_tags > 0:
-                match = self.ul_tag_pattern.search(video_webpage, tag_index)
-                if match is None:
-                    print("Couldn't match ul tag")
-                    break
-                tag_index = match.end()
-                tag = match.group(1)
-                if tag == "<ul":
-                    open_tags += 1
-                else:
-                    open_tags -= 1
-            else:
-                last_index = 0
-                metadata = video_webpage[metadata_start:tag_index]
-                current_song = None
-                while True:
-                    match = self.music_info_pattern.search(metadata, last_index)
-                    if match is None:
-                        if current_song is not None:
-                            music_list.append(current_song)
-                        break
-                    title, value = match.group(1), html.unescape(match.group(2))
-                    if title in ("Song", "Music"):
-                        if current_song is not None:
-                            music_list.append(current_song)
-                        current_song = {"title": value}
-                    else:
-                        current_song[title.lower()] = value
-                    last_index = match.end()
-
-
-
-        # Get video info
-        embed_webpage = None
-        if re.search(r'player-age-gate-content">', video_webpage) is not None:
-            age_gate = True
-            # We simulate the access to the video from www.youtube.com/v/{video_id}
-            # this can be viewed without login into Youtube
-            url = proto + '://www.youtube.com/embed/%s' % video_id
-            embed_webpage = self._download_webpage(url, video_id, 'Downloading embed webpage')
-            data = compat_urllib_parse_urlencode({
-                'video_id': video_id,
-                'eurl': 'https://youtube.googleapis.com/v/' + video_id,
-                'sts': self._search_regex(
-                    r'"sts"\s*:\s*(\d+)', embed_webpage, 'sts', default=''),
-            })
-            video_info_url = proto + '://www.youtube.com/get_video_info?' + data
-            video_info_webpage = self._download_webpage(
-                video_info_url, video_id,
-                note='Refetching age-gated info webpage',
-                errnote='unable to download video info webpage')
-            video_info = compat_parse_qs(video_info_webpage)
-            pl_response = video_info.get('player_response', [None])[0]
-            player_response = extract_player_response(pl_response, video_id)
-            add_dash_mpd(video_info)
-            view_count = extract_view_count(video_info)
-        else:
-            age_gate = False
-            video_info = None
-            sts = None
-            # Try looking directly into the video webpage
-            ytplayer_config = self._get_ytplayer_config(video_id, video_webpage)
-            if ytplayer_config:
-                args = ytplayer_config['args']
-                if args.get('url_encoded_fmt_stream_map') or args.get('hlsvp'):
-                    # Convert to the same format returned by compat_parse_qs
-                    video_info = dict((k, [v]) for k, v in args.items())
-                    add_dash_mpd(video_info)
-                # Rental video is not rented but preview is available (e.g.
-                # https://www.youtube.com/watch?v=yYr8q0y5Jfg,
-                # https://github.com/ytdl-org/youtube-dl/issues/10532)
-                if not video_info and args.get('ypc_vid'):
-                    return self.url_result(
-                        args['ypc_vid'], YoutubeIE.ie_key(), video_id=args['ypc_vid'])
-                if args.get('livestream') == '1' or args.get('live_playback') == 1:
-                    is_live = True
-                sts = ytplayer_config.get('sts')
-                if not player_response:
-                    player_response = extract_player_response(args.get('player_response'), video_id)
-            if not video_info or self._downloader.params.get('youtube_include_dash_manifest', True):
-                add_dash_mpd_pr(player_response)
-                # We also try looking in get_video_info since it may contain different dashmpd
-                # URL that points to a DASH manifest with possibly different itag set (some itags
-                # are missing from DASH manifest pointed by webpage's dashmpd, some - from DASH
-                # manifest pointed by get_video_info's dashmpd).
-                # The general idea is to take a union of itags of both DASH manifests (for example
-                # video with such 'manifest behavior' see https://github.com/ytdl-org/youtube-dl/issues/6093)
-                self.report_video_info_webpage_download(video_id)
-                for el in ('embedded', 'detailpage', 'vevo', ''):
-                    query = {
-                        'video_id': video_id,
-                        'ps': 'default',
-                        'eurl': '',
-                        'gl': 'US',
-                        'hl': 'en',
-                    }
-                    if el:
-                        query['el'] = el
-                    if sts:
-                        query['sts'] = sts
-                    video_info_webpage = self._download_webpage(
-                        '%s://www.youtube.com/get_video_info' % proto,
-                        video_id, note=False,
-                        errnote='unable to download video info webpage',
-                        fatal=False, query=query)
-                    if not video_info_webpage:
-                        continue
-                    get_video_info = compat_parse_qs(video_info_webpage)
-                    if not player_response:
-                        pl_response = get_video_info.get('player_response', [None])[0]
-                        player_response = extract_player_response(pl_response, video_id)
-                    add_dash_mpd(get_video_info)
-                    if view_count is None:
-                        view_count = extract_view_count(get_video_info)
-                    if not video_info:
-                        video_info = get_video_info
-                    get_token = extract_token(get_video_info)
-                    if get_token:
-                        # Different get_video_info requests may report different results, e.g.
-                        # some may report video unavailability, but some may serve it without
-                        # any complaint (see https://github.com/ytdl-org/youtube-dl/issues/7362,
-                        # the original webpage as well as el=info and el=embedded get_video_info
-                        # requests report video unavailability due to geo restriction while
-                        # el=detailpage succeeds and returns valid data). This is probably
-                        # due to YouTube measures against IP ranges of hosting providers.
-                        # Working around by preferring the first succeeded video_info containing
-                        # the token if no such video_info yet was found.
-                        token = extract_token(video_info)
-                        if not token:
-                            video_info = get_video_info
-                        break
-
-        def extract_unavailable_message():
-            messages = []
-            for tag, kind in (('h1', 'message'), ('div', 'submessage')):
-                msg = self._html_search_regex(
-                    r'(?s)<{tag}[^>]+id=["\']unavailable-{kind}["\'][^>]*>(.+?)</{tag}>'.format(tag=tag, kind=kind),
-                    video_webpage, 'unavailable %s' % kind, default=None)
-                if msg:
-                    messages.append(msg)
-            if messages:
-                return '\n'.join(messages)
-
-        if not video_info:
-            unavailable_message = extract_unavailable_message()
-            if not unavailable_message:
-                unavailable_message = 'Unable to extract video data'
-            raise ExtractorError(
-                'YouTube said: %s' % unavailable_message, expected=True, video_id=video_id)
-
-        video_details = try_get(
-            player_response, lambda x: x['videoDetails'], dict) or {}
-
-        video_title = video_info.get('title', [None])[0] or video_details.get('title')
-        if not video_title:
-            self._downloader.report_warning('Unable to extract video title')
-            video_title = '_'
-
-        description_original = video_description = get_element_by_id("eow-description", video_webpage)
-        if video_description:
-
-            def replace_url(m):
-                redir_url = compat_urlparse.urljoin(url, m.group(1))
-                parsed_redir_url = compat_urllib_parse_urlparse(redir_url)
-                if re.search(r'^(?:www\.)?(?:youtube(?:-nocookie)?\.com|youtu\.be)$', parsed_redir_url.netloc) and parsed_redir_url.path == '/redirect':
-                    qs = compat_parse_qs(parsed_redir_url.query)
-                    q = qs.get('q')
-                    if q and q[0]:
-                        return q[0]
-                return redir_url
-
-            description_original = video_description = re.sub(r'''(?x)
-                <a\s+
-                    (?:[a-zA-Z-]+="[^"]*"\s+)*?
-                    (?:title|href)="([^"]+)"\s+
-                    (?:[a-zA-Z-]+="[^"]*"\s+)*?
-                    class="[^"]*"[^>]*>
-                [^<]+\.{3}\s*
-                </a>
-            ''', replace_url, video_description)
-            video_description = clean_html(video_description)
-        else:
-            video_description = self._html_search_meta('description', video_webpage) or video_details.get('shortDescription')
-
-        if not smuggled_data.get('force_singlefeed', False):
-            if not self._downloader.params.get('noplaylist'):
-                multifeed_metadata_list = try_get(
-                    player_response,
-                    lambda x: x['multicamera']['playerLegacyMulticameraRenderer']['metadataList'],
-                    compat_str) or try_get(
-                    video_info, lambda x: x['multifeed_metadata_list'][0], compat_str)
-                if multifeed_metadata_list:
-                    entries = []
-                    feed_ids = []
-                    for feed in multifeed_metadata_list.split(','):
-                        # Unquote should take place before split on comma (,) since textual
-                        # fields may contain comma as well (see
-                        # https://github.com/ytdl-org/youtube-dl/issues/8536)
-                        feed_data = compat_parse_qs(compat_urllib_parse_unquote_plus(feed))
-                        entries.append({
-                            '_type': 'url_transparent',
-                            'ie_key': 'Youtube',
-                            'url': smuggle_url(
-                                '%s://www.youtube.com/watch?v=%s' % (proto, feed_data['id'][0]),
-                                {'force_singlefeed': True}),
-                            'title': '%s (%s)' % (video_title, feed_data['title'][0]),
-                        })
-                        feed_ids.append(feed_data['id'][0])
-                    self.to_screen(
-                        'Downloading multifeed video (%s) - add --no-playlist to just download video %s'
-                        % (', '.join(feed_ids), video_id))
-                    return self.playlist_result(entries, video_id, video_title, video_description)
-            else:
-                self.to_screen('Downloading just video %s because of --no-playlist' % video_id)
-
-        if view_count is None:
-            view_count = extract_view_count(video_info)
-        if view_count is None and video_details:
-            view_count = int_or_none(video_details.get('viewCount'))
-
-        if is_live is None:
-            is_live = bool_or_none(video_details.get('isLive'))
-
-        # Check for "rental" videos
-        if 'ypc_video_rental_bar_text' in video_info and 'author' not in video_info:
-            raise ExtractorError('"rental" videos not supported. See https://github.com/ytdl-org/youtube-dl/issues/359 for more information.', expected=True)
-
-        def _extract_filesize(media_url):
-            return int_or_none(self._search_regex(
-                r'\bclen[=/](\d+)', media_url, 'filesize', default=None))
-
-        streaming_formats = try_get(player_response, lambda x: x['streamingData']['formats'], list) or []
-        streaming_formats.extend(try_get(player_response, lambda x: x['streamingData']['adaptiveFormats'], list) or [])
-
-        if 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
-            self.report_rtmp_download()
-            formats = [{
-                'format_id': '_rtmp',
-                'protocol': 'rtmp',
-                'url': video_info['conn'][0],
-                'player_url': player_url,
-            }]
-        elif not is_live and (streaming_formats or len(video_info.get('url_encoded_fmt_stream_map', [''])[0]) >= 1 or len(video_info.get('adaptive_fmts', [''])[0]) >= 1):
-            encoded_url_map = video_info.get('url_encoded_fmt_stream_map', [''])[0] + ',' + video_info.get('adaptive_fmts', [''])[0]
-            if 'rtmpe%3Dyes' in encoded_url_map:
-                raise ExtractorError('rtmpe downloads are not supported, see https://github.com/ytdl-org/youtube-dl/issues/343 for more information.', expected=True)
-            formats = []
-            formats_spec = {}
-            fmt_list = video_info.get('fmt_list', [''])[0]
-            if fmt_list:
-                for fmt in fmt_list.split(','):
-                    spec = fmt.split('/')
-                    if len(spec) > 1:
-                        width_height = spec[1].split('x')
-                        if len(width_height) == 2:
-                            formats_spec[spec[0]] = {
-                                'resolution': spec[1],
-                                'width': int_or_none(width_height[0]),
-                                'height': int_or_none(width_height[1]),
-                            }
-            for fmt in streaming_formats:
-                itag = str_or_none(fmt.get('itag'))
-                if not itag:
-                    continue
-                quality = fmt.get('quality')
-                quality_label = fmt.get('qualityLabel') or quality
-                formats_spec[itag] = {
-                    'asr': int_or_none(fmt.get('audioSampleRate')),
-                    'filesize': int_or_none(fmt.get('contentLength')),
-                    'format_note': quality_label,
-                    'fps': int_or_none(fmt.get('fps')),
-                    'height': int_or_none(fmt.get('height')),
-                    # bitrate for itag 43 is always 2147483647
-                    'tbr': float_or_none(fmt.get('averageBitrate') or fmt.get('bitrate'), 1000) if itag != '43' else None,
-                    'width': int_or_none(fmt.get('width')),
-                }
-
-            for fmt in streaming_formats:
-                if fmt.get('drm_families'):
-                    continue
-                url = url_or_none(fmt.get('url'))
-
-                if not url:
-                    cipher = fmt.get('cipher')
-                    if not cipher:
-                        continue
-                    url_data = compat_parse_qs(cipher)
-                    url = url_or_none(try_get(url_data, lambda x: x['url'][0], compat_str))
-                    if not url:
-                        continue
-                else:
-                    cipher = None
-                    url_data = compat_parse_qs(compat_urllib_parse_urlparse(url).query)
-
-                stream_type = int_or_none(try_get(url_data, lambda x: x['stream_type'][0]))
-                # Unsupported FORMAT_STREAM_TYPE_OTF
-                if stream_type == 3:
-                    continue
-
-                format_id = fmt.get('itag') or url_data['itag'][0]
-                if not format_id:
-                    continue
-                format_id = compat_str(format_id)
-
-                if cipher:
-                    if 's' in url_data or self._downloader.params.get('youtube_include_dash_manifest', True):
-                        ASSETS_RE = r'"assets":.+?"js":\s*("[^"]+")'
-                        jsplayer_url_json = self._search_regex(
-                            ASSETS_RE,
-                            embed_webpage if age_gate else video_webpage,
-                            'JS player URL (1)', default=None)
-                        if not jsplayer_url_json and not age_gate:
-                            # We need the embed website after all
-                            if embed_webpage is None:
-                                embed_url = proto + '://www.youtube.com/embed/%s' % video_id
-                                embed_webpage = self._download_webpage(
-                                    embed_url, video_id, 'Downloading embed webpage')
-                            jsplayer_url_json = self._search_regex(
-                                ASSETS_RE, embed_webpage, 'JS player URL')
-
-                        player_url = json.loads(jsplayer_url_json)
-                        if player_url is None:
-                            player_url_json = self._search_regex(
-                                r'ytplayer\.config.*?"url"\s*:\s*("[^"]+")',
-                                video_webpage, 'age gate player URL')
-                            player_url = json.loads(player_url_json)
-
-                    if 'sig' in url_data:
-                        url += '&signature=' + url_data['sig'][0]
-                    elif 's' in url_data:
-                        encrypted_sig = url_data['s'][0]
-
-                        if self._downloader.params.get('verbose'):
-                            if player_url is None:
-                                player_version = 'unknown'
-                                player_desc = 'unknown'
-                            else:
-                                if player_url.endswith('swf'):
-                                    player_version = self._search_regex(
-                                        r'-(.+?)(?:/watch_as3)?\.swf$', player_url,
-                                        'flash player', fatal=False)
-                                    player_desc = 'flash player %s' % player_version
-                                else:
-                                    player_version = self._search_regex(
-                                        [r'html5player-([^/]+?)(?:/html5player(?:-new)?)?\.js',
-                                         r'(?:www|player(?:_ias)?)-([^/]+)(?:/[a-z]{2,3}_[A-Z]{2})?/base\.js'],
-                                        player_url,
-                                        'html5 player', fatal=False)
-                                    player_desc = 'html5 player %s' % player_version
-
-                            parts_sizes = self._signature_cache_id(encrypted_sig)
-                            self.to_screen('{%s} signature length %s, %s' %
-                                           (format_id, parts_sizes, player_desc))
-
-                        signature = self._decrypt_signature(
-                            encrypted_sig, video_id, player_url, age_gate)
-                        sp = try_get(url_data, lambda x: x['sp'][0], compat_str) or 'signature'
-                        url += '&%s=%s' % (sp, signature)
-                if 'ratebypass' not in url:
-                    url += '&ratebypass=yes'
-
-                dct = {
-                    'format_id': format_id,
-                    'url': url,
-                    'player_url': player_url,
-                }
-                if format_id in self._formats:
-                    dct.update(self._formats[format_id])
-                if format_id in formats_spec:
-                    dct.update(formats_spec[format_id])
-
-                # Some itags are not included in DASH manifest thus corresponding formats will
-                # lack metadata (see https://github.com/ytdl-org/youtube-dl/pull/5993).
-                # Trying to extract metadata from url_encoded_fmt_stream_map entry.
-                mobj = re.search(r'^(?P<width>\d+)[xX](?P<height>\d+)$', url_data.get('size', [''])[0])
-                width, height = (int(mobj.group('width')), int(mobj.group('height'))) if mobj else (None, None)
-
-                if width is None:
-                    width = int_or_none(fmt.get('width'))
-                if height is None:
-                    height = int_or_none(fmt.get('height'))
-
-                filesize = int_or_none(url_data.get(
-                    'clen', [None])[0]) or _extract_filesize(url)
-
-                quality = url_data.get('quality', [None])[0] or fmt.get('quality')
-                quality_label = url_data.get('quality_label', [None])[0] or fmt.get('qualityLabel')
-
-                tbr = (float_or_none(url_data.get('bitrate', [None])[0], 1000)
-                       or float_or_none(fmt.get('bitrate'), 1000)) if format_id != '43' else None
-                fps = int_or_none(url_data.get('fps', [None])[0]) or int_or_none(fmt.get('fps'))
-
-                more_fields = {
-                    'filesize': filesize,
-                    'tbr': tbr,
-                    'width': width,
-                    'height': height,
-                    'fps': fps,
-                    'format_note': quality_label or quality,
-                }
-                for key, value in more_fields.items():
-                    if value:
-                        dct[key] = value
-                type_ = url_data.get('type', [None])[0] or fmt.get('mimeType')
-                if type_:
-                    type_split = type_.split(';')
-                    kind_ext = type_split[0].split('/')
-                    if len(kind_ext) == 2:
-                        kind, _ = kind_ext
-                        dct['ext'] = mimetype2ext(type_split[0])
-                        if kind in ('audio', 'video'):
-                            codecs = None
-                            for mobj in re.finditer(
-                                    r'(?P<key>[a-zA-Z_-]+)=(?P<quote>["\']?)(?P<val>.+?)(?P=quote)(?:;|$)', type_):
-                                if mobj.group('key') == 'codecs':
-                                    codecs = mobj.group('val')
-                                    break
-                            if codecs:
-                                dct.update(parse_codecs(codecs))
-                if dct.get('acodec') == 'none' or dct.get('vcodec') == 'none':
-                    dct['downloader_options'] = {
-                        # Youtube throttles chunks >~10M
-                        'http_chunk_size': 10485760,
-                    }
-                formats.append(dct)
-        else:
-            manifest_url = (
-                url_or_none(try_get(
-                    player_response,
-                    lambda x: x['streamingData']['hlsManifestUrl'],
-                    compat_str))
-                or url_or_none(try_get(
-                    video_info, lambda x: x['hlsvp'][0], compat_str)))
-            if manifest_url:
-                formats = []
-                m3u8_formats = self._extract_m3u8_formats(
-                    manifest_url, video_id, 'mp4', fatal=False)
-                for a_format in m3u8_formats:
-                    itag = self._search_regex(
-                        r'/itag/(\d+)/', a_format['url'], 'itag', default=None)
-                    if itag:
-                        a_format['format_id'] = itag
-                        if itag in self._formats:
-                            dct = self._formats[itag].copy()
-                            dct.update(a_format)
-                            a_format = dct
-                    a_format['player_url'] = player_url
-                    # Accept-Encoding header causes failures in live streams on Youtube and Youtube Gaming
-                    a_format.setdefault('http_headers', {})['Youtubedl-no-compression'] = 'True'
-                    formats.append(a_format)
-            else:
-                error_message = extract_unavailable_message()
-                alt_error_message = clean_html(video_info.get('reason', [None])[0])
-                print(alt_error_message)
-                if not error_message:
-                    error_message = alt_error_message
-                if not error_message:
-                    error_message = clean_html(
-                        try_get(video_info, lambda x: x['reason'][0], compat_str))
-                if error_message:
-                    raise YoutubeError(error_message)
-                raise ExtractorError('no conn, hlsvp, hlsManifestUrl or url_encoded_fmt_stream_map information found in video info')
-
-        # uploader
-        video_uploader = try_get(
-            video_info, lambda x: x['author'][0],
-            compat_str) or str_or_none(video_details.get('author'))
-        if video_uploader:
-            video_uploader = compat_urllib_parse_unquote_plus(video_uploader)
-        else:
-            self._downloader.report_warning('unable to extract uploader name')
-
-        # uploader_id
-        video_uploader_id = None
-        video_uploader_url = None
-        mobj = re.search(
-            r'<link itemprop="url" href="(?P<uploader_url>https?://www\.youtube\.com/(?:user|channel)/(?P<uploader_id>[^"]+))">',
-            video_webpage)
-        if mobj is not None:
-            video_uploader_id = mobj.group('uploader_id')
-            video_uploader_url = mobj.group('uploader_url')
-        else:
-            self._downloader.report_warning('unable to extract uploader nickname')
-
-        channel_id = (
-            str_or_none(video_details.get('channelId'))
-            or self._html_search_meta(
-                'channelId', video_webpage, 'channel id', default=None)
-            or self._search_regex(
-                r'data-channel-external-id=(["\'])(?P<id>(?:(?!\1).)+)\1',
-                video_webpage, 'channel id', default=None, group='id'))
-        channel_url = 'http://www.youtube.com/channel/%s' % channel_id if channel_id else None
-
-        # thumbnail image
-        # We try first to get a high quality image:
-        m_thumb = re.search(r'<span itemprop="thumbnail".*?href="(.*?)">',
-                            video_webpage, re.DOTALL)
-        if m_thumb is not None:
-            video_thumbnail = m_thumb.group(1)
-        elif 'thumbnail_url' not in video_info:
-            self._downloader.report_warning('unable to extract video thumbnail')
-            video_thumbnail = None
-        else:   # don't panic if we can't find it
-            video_thumbnail = compat_urllib_parse_unquote_plus(video_info['thumbnail_url'][0])
-
-        # upload date
-        upload_date = self._html_search_meta(
-            'datePublished', video_webpage, 'upload date', default=None)
-        if not upload_date:
-            upload_date = self._search_regex(
-                [r'(?s)id="eow-date.*?>(.*?)</span>',
-                 r'(?:id="watch-uploader-info".*?>.*?|["\']simpleText["\']\s*:\s*["\'])(?:Published|Uploaded|Streamed live|Started) on (.+?)[<"\']'],
-                video_webpage, 'upload date', default=None)
-        upload_date = unified_strdate(upload_date)
-
-        video_license = self._html_search_regex(
-            r'<h4[^>]+class="title"[^>]*>\s*License\s*</h4>\s*<ul[^>]*>\s*<li>(.+?)</li',
-            video_webpage, 'license', default=None)
-
-        m_music = re.search(
-            r'''(?x)
-                <h4[^>]+class="title"[^>]*>\s*Music\s*</h4>\s*
-                <ul[^>]*>\s*
-                <li>(?P<title>.+?)
-                by (?P<creator>.+?)
-                (?:
-                    \(.+?\)|
-                    <a[^>]*
-                        (?:
-                            \bhref=["\']/red[^>]*>|             # drop possible
-                            >\s*Listen ad-free with YouTube Red # YouTube Red ad
-                        )
-                    .*?
-                )?</li
-            ''',
-            video_webpage)
-        if m_music:
-            video_alt_title = remove_quotes(unescapeHTML(m_music.group('title')))
-            video_creator = clean_html(m_music.group('creator'))
-        else:
-            video_alt_title = video_creator = None
-
-        def extract_meta(field):
-            return self._html_search_regex(
-                r'<h4[^>]+class="title"[^>]*>\s*%s\s*</h4>\s*<ul[^>]*>\s*<li>(.+?)</li>\s*' % field,
-                video_webpage, field, default=None)
-
-        track = extract_meta('Song')
-        artist = extract_meta('Artist')
-        album = extract_meta('Album')
-
-        # Youtube Music Auto-generated description
-        release_date = release_year = None
-        if video_description:
-            mobj = re.search(r'(?s)Provided to YouTube by [^\n]+\n+(?P<track>[^·]+)·(?P<artist>[^\n]+)\n+(?P<album>[^\n]+)(?:.+?℗\s*(?P<release_year>\d{4})(?!\d))?(?:.+?Released on\s*:\s*(?P<release_date>\d{4}-\d{2}-\d{2}))?(.+?\nArtist\s*:\s*(?P<clean_artist>[^\n]+))?', video_description)
-            if mobj:
-                if not track:
-                    track = mobj.group('track').strip()
-                if not artist:
-                    artist = mobj.group('clean_artist') or ', '.join(a.strip() for a in mobj.group('artist').split('·'))
-                if not album:
-                    album = mobj.group('album'.strip())
-                release_year = mobj.group('release_year')
-                release_date = mobj.group('release_date')
-                if release_date:
-                    release_date = release_date.replace('-', '')
-                    if not release_year:
-                        release_year = int(release_date[:4])
-                if release_year:
-                    release_year = int(release_year)
-
-        m_episode = re.search(
-            r'<div[^>]+id="watch7-headline"[^>]*>\s*<span[^>]*>.*?>(?P<series>[^<]+)</a></b>\s*S(?P<season>\d+)\s*•\s*E(?P<episode>\d+)</span>',
-            video_webpage)
-        if m_episode:
-            series = unescapeHTML(m_episode.group('series'))
-            season_number = int(m_episode.group('season'))
-            episode_number = int(m_episode.group('episode'))
-        else:
-            series = season_number = episode_number = None
-
-        m_cat_container = self._search_regex(
-            r'(?s)<h4[^>]*>\s*Category\s*</h4>\s*<ul[^>]*>(.*?)</ul>',
-            video_webpage, 'categories', default=None)
-        if m_cat_container:
-            category = self._html_search_regex(
-                r'(?s)<a[^<]+>(.*?)</a>', m_cat_container, 'category',
-                default=None)
-            video_categories = None if category is None else [category]
-        else:
-            video_categories = None
-
-        video_tags = [
-            unescapeHTML(m.group('content'))
-            for m in re.finditer(self._meta_regex('og:video:tag'), video_webpage)]
-
-        def _extract_count(count_name):
-            return str_to_int(self._search_regex(
-                r'-%s-button[^>]+><span[^>]+class="yt-uix-button-content"[^>]*>([\d,]+)</span>'
-                % re.escape(count_name),
-                video_webpage, count_name, default=None))
-
-        like_count = _extract_count('like')
-        dislike_count = _extract_count('dislike')
-
-        if view_count is None:
-            view_count = str_to_int(self._search_regex(
-                r'<[^>]+class=["\']watch-view-count[^>]+>\s*([\d,\s]+)', video_webpage,
-                'view count', default=None))
-
-        average_rating = (
-            float_or_none(video_details.get('averageRating'))
-            or try_get(video_info, lambda x: float_or_none(x['avg_rating'][0])))
-
-        # subtitles
-        video_subtitles = self._get_subtitles(video_id, video_webpage)
-        automatic_captions = self._get_automatic_captions(video_id, video_webpage)
-
-        video_duration = try_get(
-            video_info, lambda x: int_or_none(x['length_seconds'][0]))
-        if not video_duration:
-            video_duration = int_or_none(video_details.get('lengthSeconds'))
-        if not video_duration:
-            video_duration = parse_duration(self._html_search_meta(
-                'duration', video_webpage, 'video duration'))
-
-        # annotations
-        video_annotations = None
-        if self._downloader.params.get('writeannotations', False):
-            xsrf_token = self._search_regex(
-                r'([\'"])XSRF_TOKEN\1\s*:\s*([\'"])(?P<xsrf_token>[A-Za-z0-9+/=]+)\2',
-                video_webpage, 'xsrf token', group='xsrf_token', fatal=False)
-            invideo_url = try_get(
-                player_response, lambda x: x['annotations'][0]['playerAnnotationsUrlsRenderer']['invideoUrl'], compat_str)
-            if xsrf_token and invideo_url:
-                xsrf_field_name = self._search_regex(
-                    r'([\'"])XSRF_FIELD_NAME\1\s*:\s*([\'"])(?P<xsrf_field_name>\w+)\2',
-                    video_webpage, 'xsrf field name',
-                    group='xsrf_field_name', default='session_token')
-                video_annotations = self._download_webpage(
-                    self._proto_relative_url(invideo_url),
-                    video_id, note='Downloading annotations',
-                    errnote='Unable to download video annotations', fatal=False,
-                    data=urlencode_postdata({xsrf_field_name: xsrf_token}))
-
-        chapters = self._extract_chapters(description_original, video_duration)
-
-        # Look for the DASH manifest
-        if self._downloader.params.get('youtube_include_dash_manifest', True):
-            dash_mpd_fatal = True
-            for mpd_url in dash_mpds:
-                dash_formats = {}
-                try:
-                    def decrypt_sig(mobj):
-                        s = mobj.group(1)
-                        dec_s = self._decrypt_signature(s, video_id, player_url, age_gate)
-                        return '/signature/%s' % dec_s
-
-                    mpd_url = re.sub(r'/s/([a-fA-F0-9\.]+)', decrypt_sig, mpd_url)
-
-                    for df in self._extract_mpd_formats(
-                            mpd_url, video_id, fatal=dash_mpd_fatal,
-                            formats_dict=self._formats):
-                        if not df.get('filesize'):
-                            df['filesize'] = _extract_filesize(df['url'])
-                        # Do not overwrite DASH format found in some previous DASH manifest
-                        if df['format_id'] not in dash_formats:
-                            dash_formats[df['format_id']] = df
-                        # Additional DASH manifests may end up in HTTP Error 403 therefore
-                        # allow them to fail without bug report message if we already have
-                        # some DASH manifest succeeded. This is temporary workaround to reduce
-                        # burst of bug reports until we figure out the reason and whether it
-                        # can be fixed at all.
-                        dash_mpd_fatal = False
-                except (ExtractorError, KeyError) as e:
-                    self.report_warning(
-                        'Skipping DASH manifest: %r' % e, video_id)
-                if dash_formats:
-                    # Remove the formats we found through non-DASH, they
-                    # contain less info and it can be wrong, because we use
-                    # fixed values (for example the resolution). See
-                    # https://github.com/ytdl-org/youtube-dl/issues/5774 for an
-                    # example.
-                    formats = [f for f in formats if f['format_id'] not in dash_formats.keys()]
-                    formats.extend(dash_formats.values())
-
-        # Check for malformed aspect ratio
-        stretched_m = re.search(
-            r'<meta\s+property="og:video:tag".*?content="yt:stretch=(?P<w>[0-9]+):(?P<h>[0-9]+)">',
-            video_webpage)
-        if stretched_m:
-            w = float(stretched_m.group('w'))
-            h = float(stretched_m.group('h'))
-            # yt:stretch may hold invalid ratio data (e.g. for Q39EVAstoRM ratio is 17:0).
-            # We will only process correct ratios.
-            if w > 0 and h > 0:
-                ratio = w / h
-                for f in formats:
-                    if f.get('vcodec') != 'none':
-                        f['stretched_ratio'] = ratio
-
-        if not formats:
-            token = extract_token(video_info)
-            if not token:
-                if 'reason' in video_info:
-                    if 'The uploader has not made this video available in your country.' in video_info['reason']:
-                        regions_allowed = self._html_search_meta(
-                            'regionsAllowed', video_webpage, default=None)
-                        countries = regions_allowed.split(',') if regions_allowed else None
-                        self.raise_geo_restricted(
-                            msg=video_info['reason'][0], countries=countries)
-                    reason = video_info['reason'][0]
-                    if 'Invalid parameters' in reason:
-                        unavailable_message = extract_unavailable_message()
-                        if unavailable_message:
-                            reason = unavailable_message
-                    raise YoutubeError(
-                        'YouTube said: %s' % reason,
-                        expected=True, video_id=video_id)
-                else:
-                    raise ExtractorError(
-                        '"token" parameter not in video info for unknown reason',
-                        video_id=video_id)
-
-        if not formats and (video_info.get('license_info') or try_get(player_response, lambda x: x['streamingData']['licenseInfos'])):
-            raise ExtractorError('This video is DRM protected.', expected=True)
-
-        self._sort_formats(formats)
-
-        self.mark_watched(video_id, video_info, player_response)
-
-        return {
-            'id': video_id,
-            'uploader': video_uploader,
-            'uploader_id': video_uploader_id,
-            'uploader_url': video_uploader_url,
-            'channel_id': channel_id,
-            'channel_url': channel_url,
-            'upload_date': upload_date,
-            'license': video_license,
-            'creator': video_creator or artist,
-            'title': video_title,
-            'alt_title': video_alt_title or track,
-            'thumbnail': video_thumbnail,
-            'description': video_description,
-            'categories': video_categories,
-            'tags': video_tags,
-            'subtitles': video_subtitles,
-            'automatic_captions': automatic_captions,
-            'duration': video_duration,
-            'age_limit': 18 if age_gate else 0,
-            'annotations': video_annotations,
-            'chapters': chapters,
-            'webpage_url': proto + '://www.youtube.com/watch?v=%s' % video_id,
-            'view_count': view_count,
-            'like_count': like_count,
-            'dislike_count': dislike_count,
-            'average_rating': average_rating,
-            'formats': formats,
-            'is_live': is_live,
-            'start_time': start_time,
-            'end_time': end_time,
-            'series': series,
-            'season_number': season_number,
-            'episode_number': episode_number,
-            'track': track,
-            'artist': artist,
-            'album': album,
-            'release_date': release_date,
-            'release_year': release_year,
-            'related_vids': related_vids,
-            'music_list': music_list,
-            'unlisted': unlisted,
-        }
-
-
-class YoutubePlaylistIE(YoutubePlaylistBaseInfoExtractor):
-    IE_DESC = 'YouTube.com playlists'
-    _VALID_URL = r"""(?x)(?:
-                        (?:https?://)?
-                        (?:\w+\.)?
-                        (?:
-                            (?:
-                                youtube\.com|
-                                invidio\.us
-                            )
-                            /
-                            (?:
-                               (?:course|view_play_list|my_playlists|artist|playlist|watch|embed/(?:videoseries|[0-9A-Za-z_-]{11}))
-                               \? (?:.*?[&;])*? (?:p|a|list)=
-                            |  p/
-                            )|
-                            youtu\.be/[0-9A-Za-z_-]{11}\?.*?\blist=
-                        )
-                        (
-                            (?:PL|LL|EC|UU|FL|RD|UL|TL|OLAK5uy_)?[0-9A-Za-z-_]{10,}
-                            # Top tracks, they can also include dots
-                            |(?:MC)[\w\.]*
-                        )
-                        .*
-                     |
-                        (%(playlist_id)s)
-                     )""" % {'playlist_id': YoutubeBaseInfoExtractor._PLAYLIST_ID_RE}
-    _TEMPLATE_URL = 'https://www.youtube.com/playlist?list=%s'
-    _VIDEO_RE_TPL = r'href="\s*/watch\?v=%s(?:&amp;(?:[^"]*?index=(?P<index>\d+))?(?:[^>]+>(?P<title>[^<]+))?)?'
-    _VIDEO_RE = _VIDEO_RE_TPL % r'(?P<id>[0-9A-Za-z_-]{11})'
-    IE_NAME = 'youtube:playlist'
-    _TESTS = [{
-        'url': 'https://www.youtube.com/playlist?list=PLwiyx1dc3P2JR9N8gQaQN_BCvlSlap7re',
-        'info_dict': {
-            'title': 'ytdl test PL',
-            'id': 'PLwiyx1dc3P2JR9N8gQaQN_BCvlSlap7re',
-        },
-        'playlist_count': 3,
-    }, {
-        'url': 'https://www.youtube.com/playlist?list=PLtPgu7CB4gbZDA7i_euNxn75ISqxwZPYx',
-        'info_dict': {
-            'id': 'PLtPgu7CB4gbZDA7i_euNxn75ISqxwZPYx',
-            'title': 'YDL_Empty_List',
-        },
-        'playlist_count': 0,
-        'skip': 'This playlist is private',
-    }, {
-        'note': 'Playlist with deleted videos (#651). As a bonus, the video #51 is also twice in this list.',
-        'url': 'https://www.youtube.com/playlist?list=PLwP_SiAcdui0KVebT0mU9Apz359a4ubsC',
-        'info_dict': {
-            'title': '29C3: Not my department',
-            'id': 'PLwP_SiAcdui0KVebT0mU9Apz359a4ubsC',
-            'uploader': 'Christiaan008',
-            'uploader_id': 'ChRiStIaAn008',
-        },
-        'playlist_count': 95,
-    }, {
-        'note': 'issue #673',
-        'url': 'PLBB231211A4F62143',
-        'info_dict': {
-            'title': '[OLD]Team Fortress 2 (Class-based LP)',
-            'id': 'PLBB231211A4F62143',
-            'uploader': 'Wickydoo',
-            'uploader_id': 'Wickydoo',
-        },
-        'playlist_mincount': 26,
-    }, {
-        'note': 'Large playlist',
-        'url': 'https://www.youtube.com/playlist?list=UUBABnxM4Ar9ten8Mdjj1j0Q',
-        'info_dict': {
-            'title': 'Uploads from Cauchemar',
-            'id': 'UUBABnxM4Ar9ten8Mdjj1j0Q',
-            'uploader': 'Cauchemar',
-            'uploader_id': 'Cauchemar89',
-        },
-        'playlist_mincount': 799,
-    }, {
-        'url': 'PLtPgu7CB4gbY9oDN3drwC3cMbJggS7dKl',
-        'info_dict': {
-            'title': 'YDL_safe_search',
-            'id': 'PLtPgu7CB4gbY9oDN3drwC3cMbJggS7dKl',
-        },
-        'playlist_count': 2,
-        'skip': 'This playlist is private',
-    }, {
-        'note': 'embedded',
-        'url': 'https://www.youtube.com/embed/videoseries?list=PL6IaIsEjSbf96XFRuNccS_RuEXwNdsoEu',
-        'playlist_count': 4,
-        'info_dict': {
-            'title': 'JODA15',
-            'id': 'PL6IaIsEjSbf96XFRuNccS_RuEXwNdsoEu',
-            'uploader': 'milan',
-            'uploader_id': 'UCEI1-PVPcYXjB73Hfelbmaw',
-        }
-    }, {
-        'url': 'http://www.youtube.com/embed/_xDOZElKyNU?list=PLsyOSbh5bs16vubvKePAQ1x3PhKavfBIl',
-        'playlist_mincount': 485,
-        'info_dict': {
-            'title': '2018 Chinese New Singles (11/6 updated)',
-            'id': 'PLsyOSbh5bs16vubvKePAQ1x3PhKavfBIl',
-            'uploader': 'LBK',
-            'uploader_id': 'sdragonfang',
-        }
-    }, {
-        'note': 'Embedded SWF player',
-        'url': 'https://www.youtube.com/p/YN5VISEtHet5D4NEvfTd0zcgFk84NqFZ?hl=en_US&fs=1&rel=0',
-        'playlist_count': 4,
-        'info_dict': {
-            'title': 'JODA7',
-            'id': 'YN5VISEtHet5D4NEvfTd0zcgFk84NqFZ',
-        },
-        'skip': 'This playlist does not exist',
-    }, {
-        'note': 'Buggy playlist: the webpage has a "Load more" button but it doesn\'t have more videos',
-        'url': 'https://www.youtube.com/playlist?list=UUXw-G3eDE9trcvY2sBMM_aA',
-        'info_dict': {
-            'title': 'Uploads from Interstellar Movie',
-            'id': 'UUXw-G3eDE9trcvY2sBMM_aA',
-            'uploader': 'Interstellar Movie',
-            'uploader_id': 'InterstellarMovie1',
-        },
-        'playlist_mincount': 21,
-    }, {
-        # Playlist URL that does not actually serve a playlist
-        'url': 'https://www.youtube.com/watch?v=FqZTN594JQw&list=PLMYEtVRpaqY00V9W81Cwmzp6N6vZqfUKD4',
-        'info_dict': {
-            'id': 'FqZTN594JQw',
-            'ext': 'webm',
-            'title': "Smiley's People 01 detective, Adventure Series, Action",
-            'uploader': 'STREEM',
-            'uploader_id': 'UCyPhqAZgwYWZfxElWVbVJng',
-            'uploader_url': r're:https?://(?:www\.)?youtube\.com/channel/UCyPhqAZgwYWZfxElWVbVJng',
-            'upload_date': '20150526',
-            'license': 'Standard YouTube License',
-            'description': 'md5:507cdcb5a49ac0da37a920ece610be80',
-            'categories': ['People & Blogs'],
-            'tags': list,
-            'view_count': int,
-            'like_count': int,
-            'dislike_count': int,
-        },
-        'params': {
-            'skip_download': True,
-        },
-        'skip': 'This video is not available.',
-        'add_ie': [YoutubeIE.ie_key()],
-    }, {
-        'url': 'https://youtu.be/yeWKywCrFtk?list=PL2qgrgXsNUG5ig9cat4ohreBjYLAPC0J5',
-        'info_dict': {
-            'id': 'yeWKywCrFtk',
-            'ext': 'mp4',
-            'title': 'Small Scale Baler and Braiding Rugs',
-            'uploader': 'Backus-Page House Museum',
-            'uploader_id': 'backuspagemuseum',
-            'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/backuspagemuseum',
-            'upload_date': '20161008',
-            'description': 'md5:800c0c78d5eb128500bffd4f0b4f2e8a',
-            'categories': ['Nonprofits & Activism'],
-            'tags': list,
-            'like_count': int,
-            'dislike_count': int,
-        },
-        'params': {
-            'noplaylist': True,
-            'skip_download': True,
-        },
-    }, {
-        # https://github.com/ytdl-org/youtube-dl/issues/21844
-        'url': 'https://www.youtube.com/playlist?list=PLzH6n4zXuckpfMu_4Ff8E7Z1behQks5ba',
-        'info_dict': {
-            'title': 'Data Analysis with Dr Mike Pound',
-            'id': 'PLzH6n4zXuckpfMu_4Ff8E7Z1behQks5ba',
-            'uploader_id': 'Computerphile',
-            'uploader': 'Computerphile',
-        },
-        'playlist_mincount': 11,
-    }, {
-        'url': 'https://youtu.be/uWyaPkt-VOI?list=PL9D9FC436B881BA21',
-        'only_matching': True,
-    }, {
-        'url': 'TLGGrESM50VT6acwMjAyMjAxNw',
-        'only_matching': True,
-    }, {
-        # music album playlist
-        'url': 'OLAK5uy_m4xAFdmMC5rX3Ji3g93pQe3hqLZw_9LhM',
-        'only_matching': True,
-    }, {
-        'url': 'https://invidio.us/playlist?list=PLDIoUOhQQPlXr63I_vwF9GD8sAKh77dWU',
-        'only_matching': True,
-    }]
-
-    def _real_initialize(self):
-        self._login()
-
-    def extract_videos_from_page(self, page):
-        ids_in_page = []
-        titles_in_page = []
-
-        for item in re.findall(
-                r'(<[^>]*\bdata-video-id\s*=\s*["\'][0-9A-Za-z_-]{11}[^>]+>)', page):
-            attrs = extract_attributes(item)
-            video_id = attrs['data-video-id']
-            video_title = unescapeHTML(attrs.get('data-title'))
-            if video_title:
-                video_title = video_title.strip()
-            ids_in_page.append(video_id)
-            titles_in_page.append(video_title)
-
-        # Fallback with old _VIDEO_RE
-        self.extract_videos_from_page_impl(
-            self._VIDEO_RE, page, ids_in_page, titles_in_page)
-
-        # Relaxed fallbacks
-        self.extract_videos_from_page_impl(
-            r'href="\s*/watch\?v\s*=\s*(?P<id>[0-9A-Za-z_-]{11})', page,
-            ids_in_page, titles_in_page)
-        self.extract_videos_from_page_impl(
-            r'data-video-ids\s*=\s*["\'](?P<id>[0-9A-Za-z_-]{11})', page,
-            ids_in_page, titles_in_page)
-
-        return zip(ids_in_page, titles_in_page)
-
-    def _extract_mix(self, playlist_id):
-        # The mixes are generated from a single video
-        # the id of the playlist is just 'RD' + video_id
-        ids = []
-        last_id = playlist_id[-11:]
-        for n in itertools.count(1):
-            url = 'https://youtube.com/watch?v=%s&list=%s' % (last_id, playlist_id)
-            webpage = self._download_webpage(
-                url, playlist_id, 'Downloading page {0} of Youtube mix'.format(n))
-            new_ids = orderedSet(re.findall(
-                r'''(?xs)data-video-username=".*?".*?
-                           href="/watch\?v=([0-9A-Za-z_-]{11})&amp;[^"]*?list=%s''' % re.escape(playlist_id),
-                webpage))
-            # Fetch new pages until all the videos are repeated, it seems that
-            # there are always 51 unique videos.
-            new_ids = [_id for _id in new_ids if _id not in ids]
-            if not new_ids:
-                break
-            ids.extend(new_ids)
-            last_id = ids[-1]
-
-        url_results = self._ids_to_results(ids)
-
-        search_title = lambda class_name: get_element_by_attribute('class', class_name, webpage)
-        title_span = (
-            search_title('playlist-title')
-            or search_title('title long-title')
-            or search_title('title'))
-        title = clean_html(title_span)
-
-        return self.playlist_result(url_results, playlist_id, title)
-
-    def _extract_playlist(self, playlist_id):
-        url = self._TEMPLATE_URL % playlist_id
-        page = self._download_webpage(url, playlist_id)
-
-        # the yt-alert-message now has tabindex attribute (see https://github.com/ytdl-org/youtube-dl/issues/11604)
-        for match in re.findall(r'<div class="yt-alert-message"[^>]*>([^<]+)</div>', page):
-            match = match.strip()
-            # Check if the playlist exists or is private
-            mobj = re.match(r'[^<]*(?:The|This) playlist (?P<reason>does not exist|is private)[^<]*', match)
-            if mobj:
-                reason = mobj.group('reason')
-                message = 'This playlist %s' % reason
-                if 'private' in reason:
-                    message += ', use --username or --netrc to access it'
-                message += '.'
-                raise ExtractorError(message, expected=True)
-            elif re.match(r'[^<]*Invalid parameters[^<]*', match):
-                raise ExtractorError(
-                    'Invalid parameters. Maybe URL is incorrect.',
-                    expected=True)
-            elif re.match(r'[^<]*Choose your language[^<]*', match):
-                continue
-            else:
-                self.report_warning('Youtube gives an alert message: ' + match)
-
-        playlist_title = self._html_search_regex(
-            r'(?s)<h1 class="pl-header-title[^"]*"[^>]*>\s*(.*?)\s*</h1>',
-            page, 'title', default=None)
-
-        _UPLOADER_BASE = r'class=["\']pl-header-details[^>]+>\s*<li>\s*<a[^>]+\bhref='
-        uploader = self._search_regex(
-            r'%s["\']/(?:user|channel)/[^>]+>([^<]+)' % _UPLOADER_BASE,
-            page, 'uploader', default=None)
-        mobj = re.search(
-            r'%s(["\'])(?P<path>/(?:user|channel)/(?P<uploader_id>.+?))\1' % _UPLOADER_BASE,
-            page)
-        if mobj:
-            uploader_id = mobj.group('uploader_id')
-            uploader_url = compat_urlparse.urljoin(url, mobj.group('path'))
-        else:
-            uploader_id = uploader_url = None
-
-        has_videos = True
-
-        if not playlist_title:
-            try:
-                # Some playlist URLs don't actually serve a playlist (e.g.
-                # https://www.youtube.com/watch?v=FqZTN594JQw&list=PLMYEtVRpaqY00V9W81Cwmzp6N6vZqfUKD4)
-                next(self._entries(page, playlist_id))
-            except StopIteration:
-                has_videos = False
-
-        playlist = self.playlist_result(
-            self._entries(page, playlist_id), playlist_id, playlist_title)
-        playlist.update({
-            'uploader': uploader,
-            'uploader_id': uploader_id,
-            'uploader_url': uploader_url,
-        })
-
-        return has_videos, playlist
-
-    def _check_download_just_video(self, url, playlist_id):
-        # Check if it's a video-specific URL
-        query_dict = compat_urlparse.parse_qs(compat_urlparse.urlparse(url).query)
-        video_id = query_dict.get('v', [None])[0] or self._search_regex(
-            r'(?:(?:^|//)youtu\.be/|youtube\.com/embed/(?!videoseries))([0-9A-Za-z_-]{11})', url,
-            'video id', default=None)
-        if video_id:
-            if self._downloader.params.get('noplaylist'):
-                self.to_screen('Downloading just video %s because of --no-playlist' % video_id)
-                return video_id, self.url_result(video_id, 'Youtube', video_id=video_id)
-            else:
-                self.to_screen('Downloading playlist %s - add --no-playlist to just download video %s' % (playlist_id, video_id))
-                return video_id, None
-        return None, None
-
-    def _real_extract(self, url):
-        # Extract playlist id
-        mobj = re.match(self._VALID_URL, url)
-        if mobj is None:
-            raise ExtractorError('Invalid URL: %s' % url)
-        playlist_id = mobj.group(1) or mobj.group(2)
-
-        video_id, video = self._check_download_just_video(url, playlist_id)
-        if video:
-            return video
-
-        if playlist_id.startswith(('RD', 'UL', 'PU')):
-            # Mixes require a custom extraction process
-            return self._extract_mix(playlist_id)
-
-        has_videos, playlist = self._extract_playlist(playlist_id)
-        if has_videos or not video_id:
-            return playlist
-
-        # Some playlist URLs don't actually serve a playlist (see
-        # https://github.com/ytdl-org/youtube-dl/issues/10537).
-        # Fallback to plain video extraction if there is a video id
-        # along with playlist id.
-        return self.url_result(video_id, 'Youtube', video_id=video_id)
-
-
-class YoutubeChannelIE(YoutubePlaylistBaseInfoExtractor):
-    IE_DESC = 'YouTube.com channels'
-    _VALID_URL = r'https?://(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com|(?:www\.)?invidio\.us)/channel/(?P<id>[0-9A-Za-z_-]+)'
-    _TEMPLATE_URL = 'https://www.youtube.com/channel/%s/videos'
-    _VIDEO_RE = r'(?:title="(?P<title>[^"]+)"[^>]+)?href="/watch\?v=(?P<id>[0-9A-Za-z_-]+)&?'
-    IE_NAME = 'youtube:channel'
-    _TESTS = [{
-        'note': 'paginated channel',
-        'url': 'https://www.youtube.com/channel/UCKfVa3S1e4PHvxWcwyMMg8w',
-        'playlist_mincount': 91,
-        'info_dict': {
-            'id': 'UUKfVa3S1e4PHvxWcwyMMg8w',
-            'title': 'Uploads from lex will',
-            'uploader': 'lex will',
-            'uploader_id': 'UCKfVa3S1e4PHvxWcwyMMg8w',
-        }
-    }, {
-        'note': 'Age restricted channel',
-        # from https://www.youtube.com/user/DeusExOfficial
-        'url': 'https://www.youtube.com/channel/UCs0ifCMCm1icqRbqhUINa0w',
-        'playlist_mincount': 64,
-        'info_dict': {
-            'id': 'UUs0ifCMCm1icqRbqhUINa0w',
-            'title': 'Uploads from Deus Ex',
-            'uploader': 'Deus Ex',
-            'uploader_id': 'DeusExOfficial',
-        },
-    }, {
-        'url': 'https://invidio.us/channel/UC23qupoDRn9YOAVzeoxjOQA',
-        'only_matching': True,
-    }]
-
-    @classmethod
-    def suitable(cls, url):
-        return (False if YoutubePlaylistsIE.suitable(url) or YoutubeLiveIE.suitable(url)
-                else super(YoutubeChannelIE, cls).suitable(url))
-
-    def _build_template_url(self, url, channel_id):
-        return self._TEMPLATE_URL % channel_id
-
-    def _real_extract(self, url):
-        channel_id = self._match_id(url)
-
-        url = self._build_template_url(url, channel_id)
-
-        # Channel by page listing is restricted to 35 pages of 30 items, i.e. 1050 videos total (see #5778)
-        # Workaround by extracting as a playlist if managed to obtain channel playlist URL
-        # otherwise fallback on channel by page extraction
-        channel_page = self._download_webpage(
-            url + '?view=57', channel_id,
-            'Downloading channel page', fatal=False)
-        if channel_page is False:
-            channel_playlist_id = False
-        else:
-            channel_playlist_id = self._html_search_meta(
-                'channelId', channel_page, 'channel id', default=None)
-            if not channel_playlist_id:
-                channel_url = self._html_search_meta(
-                    ('al:ios:url', 'twitter:app:url:iphone', 'twitter:app:url:ipad'),
-                    channel_page, 'channel url', default=None)
-                if channel_url:
-                    channel_playlist_id = self._search_regex(
-                        r'vnd\.youtube://user/([0-9A-Za-z_-]+)',
-                        channel_url, 'channel id', default=None)
-        if channel_playlist_id and channel_playlist_id.startswith('UC'):
-            playlist_id = 'UU' + channel_playlist_id[2:]
-            return self.url_result(
-                compat_urlparse.urljoin(url, '/playlist?list=%s' % playlist_id), 'YoutubePlaylist')
-
-        channel_page = self._download_webpage(url, channel_id, 'Downloading page #1')
-        autogenerated = re.search(r'''(?x)
-                class="[^"]*?(?:
-                    channel-header-autogenerated-label|
-                    yt-channel-title-autogenerated
-                )[^"]*"''', channel_page) is not None
-
-        if autogenerated:
-            # The videos are contained in a single page
-            # the ajax pages can't be used, they are empty
-            entries = [
-                self.url_result(
-                    video_id, 'Youtube', video_id=video_id,
-                    video_title=video_title)
-                for video_id, video_title in self.extract_videos_from_page(channel_page)]
-            return self.playlist_result(entries, channel_id)
-
-        try:
-            next(self._entries(channel_page, channel_id))
-        except StopIteration:
-            alert_message = self._html_search_regex(
-                r'(?s)<div[^>]+class=(["\']).*?\byt-alert-message\b.*?\1[^>]*>(?P<alert>[^<]+)</div>',
-                channel_page, 'alert', default=None, group='alert')
-            if alert_message:
-                raise ExtractorError('Youtube said: %s' % alert_message, expected=True)
-
-        return self.playlist_result(self._entries(channel_page, channel_id), channel_id)
-
-
-class YoutubeUserIE(YoutubeChannelIE):
-    IE_DESC = 'YouTube.com user videos (URL or "ytuser" keyword)'
-    _VALID_URL = r'(?:(?:https?://(?:\w+\.)?youtube\.com/(?:(?P<user>user|c)/)?(?!(?:attribution_link|watch|results|shared)(?:$|[^a-z_A-Z0-9-])))|ytuser:)(?!feed/)(?P<id>[A-Za-z0-9_-]+)'
-    _TEMPLATE_URL = 'https://www.youtube.com/%s/%s/videos'
-    IE_NAME = 'youtube:user'
-
-    _TESTS = [{
-        'url': 'https://www.youtube.com/user/TheLinuxFoundation',
-        'playlist_mincount': 320,
-        'info_dict': {
-            'id': 'UUfX55Sx5hEFjoC3cNs6mCUQ',
-            'title': 'Uploads from The Linux Foundation',
-            'uploader': 'The Linux Foundation',
-            'uploader_id': 'TheLinuxFoundation',
-        }
-    }, {
-        # Only available via https://www.youtube.com/c/12minuteathlete/videos
-        # but not https://www.youtube.com/user/12minuteathlete/videos
-        'url': 'https://www.youtube.com/c/12minuteathlete/videos',
-        'playlist_mincount': 249,
-        'info_dict': {
-            'id': 'UUVjM-zV6_opMDx7WYxnjZiQ',
-            'title': 'Uploads from 12 Minute Athlete',
-            'uploader': '12 Minute Athlete',
-            'uploader_id': 'the12minuteathlete',
-        }
-    }, {
-        'url': 'ytuser:phihag',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.youtube.com/c/gametrailers',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.youtube.com/gametrailers',
-        'only_matching': True,
-    }, {
-        # This channel is not available, geo restricted to JP
-        'url': 'https://www.youtube.com/user/kananishinoSMEJ/videos',
-        'only_matching': True,
-    }]
-
-    @classmethod
-    def suitable(cls, url):
-        # Don't return True if the url can be extracted with other youtube
-        # extractor, the regex would is too permissive and it would match.
-        other_yt_ies = iter(klass for (name, klass) in globals().items() if name.startswith('Youtube') and name.endswith('IE') and klass is not cls)
-        if any(ie.suitable(url) for ie in other_yt_ies):
-            return False
-        else:
-            return super(YoutubeUserIE, cls).suitable(url)
-
-    def _build_template_url(self, url, channel_id):
-        mobj = re.match(self._VALID_URL, url)
-        return self._TEMPLATE_URL % (mobj.group('user') or 'user', mobj.group('id'))
-
-
-class YoutubeLiveIE(YoutubeBaseInfoExtractor):
-    IE_DESC = 'YouTube.com live streams'
-    _VALID_URL = r'(?P<base_url>https?://(?:\w+\.)?youtube\.com/(?:(?:user|channel|c)/)?(?P<id>[^/]+))/live'
-    IE_NAME = 'youtube:live'
-
-    _TESTS = [{
-        'url': 'https://www.youtube.com/user/TheYoungTurks/live',
-        'info_dict': {
-            'id': 'a48o2S1cPoo',
-            'ext': 'mp4',
-            'title': 'The Young Turks - Live Main Show',
-            'uploader': 'The Young Turks',
-            'uploader_id': 'TheYoungTurks',
-            'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/TheYoungTurks',
-            'upload_date': '20150715',
-            'license': 'Standard YouTube License',
-            'description': 'md5:438179573adcdff3c97ebb1ee632b891',
-            'categories': ['News & Politics'],
-            'tags': ['Cenk Uygur (TV Program Creator)', 'The Young Turks (Award-Winning Work)', 'Talk Show (TV Genre)'],
-            'like_count': int,
-            'dislike_count': int,
-        },
-        'params': {
-            'skip_download': True,
-        },
-    }, {
-        'url': 'https://www.youtube.com/channel/UC1yBKRuGpC1tSM73A0ZjYjQ/live',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.youtube.com/c/CommanderVideoHq/live',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.youtube.com/TheYoungTurks/live',
-        'only_matching': True,
-    }]
-
-    def _real_extract(self, url):
-        mobj = re.match(self._VALID_URL, url)
-        channel_id = mobj.group('id')
-        base_url = mobj.group('base_url')
-        webpage = self._download_webpage(url, channel_id, fatal=False)
-        if webpage:
-            page_type = self._og_search_property(
-                'type', webpage, 'page type', default='')
-            video_id = self._html_search_meta(
-                'videoId', webpage, 'video id', default=None)
-            if page_type.startswith('video') and video_id and re.match(
-                    r'^[0-9A-Za-z_-]{11}$', video_id):
-                return self.url_result(video_id, YoutubeIE.ie_key())
-        return self.url_result(base_url)
-
-
-class YoutubePlaylistsIE(YoutubePlaylistsBaseInfoExtractor):
-    IE_DESC = 'YouTube.com user/channel playlists'
-    _VALID_URL = r'https?://(?:\w+\.)?youtube\.com/(?:user|channel)/(?P<id>[^/]+)/playlists'
-    IE_NAME = 'youtube:playlists'
-
-    _TESTS = [{
-        'url': 'https://www.youtube.com/user/ThirstForScience/playlists',
-        'playlist_mincount': 4,
-        'info_dict': {
-            'id': 'ThirstForScience',
-            'title': 'ThirstForScience',
-        },
-    }, {
-        # with "Load more" button
-        'url': 'https://www.youtube.com/user/igorkle1/playlists?view=1&sort=dd',
-        'playlist_mincount': 70,
-        'info_dict': {
-            'id': 'igorkle1',
-            'title': 'Игорь Клейнер',
-        },
-    }, {
-        'url': 'https://www.youtube.com/channel/UCiU1dHvZObB2iP6xkJ__Icw/playlists',
-        'playlist_mincount': 17,
-        'info_dict': {
-            'id': 'UCiU1dHvZObB2iP6xkJ__Icw',
-            'title': 'Chem Player',
-        },
-        'skip': 'Blocked',
-    }]
-
-
-class YoutubeSearchBaseInfoExtractor(YoutubePlaylistBaseInfoExtractor):
-    _VIDEO_RE = r'href="\s*/watch\?v=(?P<id>[0-9A-Za-z_-]{11})(?:[^"]*"[^>]+\btitle="(?P<title>[^"]+))?'
-
-
-class YoutubeSearchIE(SearchInfoExtractor, YoutubeSearchBaseInfoExtractor):
-    IE_DESC = 'YouTube.com searches'
-    # there doesn't appear to be a real limit, for example if you search for
-    # 'python' you get more than 8.000.000 results
-    _MAX_RESULTS = float('inf')
-    IE_NAME = 'youtube:search'
-    _SEARCH_KEY = 'ytsearch'
-    _EXTRA_QUERY_ARGS = {}
-    _TESTS = []
-
-    def _get_n_results(self, query, n):
-        """Get a specified number of results for a query"""
-
-        videos = []
-        limit = n
-
-        url_query = {
-            'search_query': query.encode('utf-8'),
-        }
-        url_query.update(self._EXTRA_QUERY_ARGS)
-        result_url = 'https://www.youtube.com/results?' + compat_urllib_parse_urlencode(url_query)
-
-        for pagenum in itertools.count(1):
-            data = self._download_json(
-                result_url, video_id='query "%s"' % query,
-                note='Downloading page %s' % pagenum,
-                errnote='Unable to download API page',
-                query={'spf': 'navigate'})
-            html_content = data[1]['body']['content']
-
-            if 'class="search-message' in html_content:
-                raise ExtractorError(
-                    '[youtube] No video results', expected=True)
-
-            new_videos = list(self._process_page(html_content))
-            videos += new_videos
-            if not new_videos or len(videos) > limit:
-                break
-            next_link = self._html_search_regex(
-                r'href="(/results\?[^"]*\bsp=[^"]+)"[^>]*>\s*<span[^>]+class="[^"]*\byt-uix-button-content\b[^"]*"[^>]*>Next',
-                html_content, 'next link', default=None)
-            if next_link is None:
-                break
-            result_url = compat_urlparse.urljoin('https://www.youtube.com/', next_link)
-
-        if len(videos) > n:
-            videos = videos[:n]
-        return self.playlist_result(videos, query)
-
-
-class YoutubeSearchDateIE(YoutubeSearchIE):
-    IE_NAME = YoutubeSearchIE.IE_NAME + ':date'
-    _SEARCH_KEY = 'ytsearchdate'
-    IE_DESC = 'YouTube.com searches, newest videos first'
-    _EXTRA_QUERY_ARGS = {'search_sort': 'video_date_uploaded'}
-
-
-class YoutubeSearchURLIE(YoutubeSearchBaseInfoExtractor):
-    IE_DESC = 'YouTube.com search URLs'
-    IE_NAME = 'youtube:search_url'
-    _VALID_URL = r'https?://(?:www\.)?youtube\.com/results\?(.*?&)?(?:search_query|q)=(?P<query>[^&]+)(?:[&]|$)'
-    _TESTS = [{
-        'url': 'https://www.youtube.com/results?baz=bar&search_query=youtube-dl+test+video&filters=video&lclk=video',
-        'playlist_mincount': 5,
-        'info_dict': {
-            'title': 'youtube-dl test video',
-        }
-    }, {
-        'url': 'https://www.youtube.com/results?q=test&sp=EgQIBBgB',
-        'only_matching': True,
-    }]
-
-    def _real_extract(self, url):
-        mobj = re.match(self._VALID_URL, url)
-        query = compat_urllib_parse_unquote_plus(mobj.group('query'))
-        webpage = self._download_webpage(url, query)
-        return self.playlist_result(self._process_page(webpage), playlist_title=query)
-
-
-class YoutubeShowIE(YoutubePlaylistsBaseInfoExtractor):
-    IE_DESC = 'YouTube.com (multi-season) shows'
-    _VALID_URL = r'https?://(?:www\.)?youtube\.com/show/(?P<id>[^?#]*)'
-    IE_NAME = 'youtube:show'
-    _TESTS = [{
-        'url': 'https://www.youtube.com/show/airdisasters',
-        'playlist_mincount': 5,
-        'info_dict': {
-            'id': 'airdisasters',
-            'title': 'Air Disasters',
-        }
-    }]
-
-    def _real_extract(self, url):
-        playlist_id = self._match_id(url)
-        return super(YoutubeShowIE, self)._real_extract(
-            'https://www.youtube.com/show/%s/playlists' % playlist_id)
-
-
-class YoutubeFeedsInfoExtractor(YoutubeBaseInfoExtractor):
-    """
-    Base class for feed extractors
-    Subclasses must define the _FEED_NAME and _PLAYLIST_TITLE properties.
-    """
-    _LOGIN_REQUIRED = True
-
-    @property
-    def IE_NAME(self):
-        return 'youtube:%s' % self._FEED_NAME
-
-    def _real_initialize(self):
-        self._login()
-
-    def _entries(self, page):
-        # The extraction process is the same as for playlists, but the regex
-        # for the video ids doesn't contain an index
-        ids = []
-        more_widget_html = content_html = page
-        for page_num in itertools.count(1):
-            matches = re.findall(r'href="\s*/watch\?v=([0-9A-Za-z_-]{11})', content_html)
-
-            # 'recommended' feed has infinite 'load more' and each new portion spins
-            # the same videos in (sometimes) slightly different order, so we'll check
-            # for unicity and break when portion has no new videos
-            new_ids = list(filter(lambda video_id: video_id not in ids, orderedSet(matches)))
-            if not new_ids:
-                break
-
-            ids.extend(new_ids)
-
-            for entry in self._ids_to_results(new_ids):
-                yield entry
-
-            mobj = re.search(r'data-uix-load-more-href="/?(?P<more>[^"]+)"', more_widget_html)
-            if not mobj:
-                break
-
-            more = self._download_json(
-                'https://youtube.com/%s' % mobj.group('more'), self._PLAYLIST_TITLE,
-                'Downloading page #%s' % page_num,
-                transform_source=uppercase_escape)
-            content_html = more['content_html']
-            more_widget_html = more['load_more_widget_html']
-
-    def _real_extract(self, url):
-        page = self._download_webpage(
-            'https://www.youtube.com/feed/%s' % self._FEED_NAME,
-            self._PLAYLIST_TITLE)
-        return self.playlist_result(
-            self._entries(page), playlist_title=self._PLAYLIST_TITLE)
-
-
-class YoutubeWatchLaterIE(YoutubePlaylistIE):
-    IE_NAME = 'youtube:watchlater'
-    IE_DESC = 'Youtube watch later list, ":ytwatchlater" for short (requires authentication)'
-    _VALID_URL = r'https?://(?:www\.)?youtube\.com/(?:feed/watch_later|(?:playlist|watch)\?(?:.+&)?list=WL)|:ytwatchlater'
-
-    _TESTS = [{
-        'url': 'https://www.youtube.com/playlist?list=WL',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.youtube.com/watch?v=bCNU9TrbiRk&index=1&list=WL',
-        'only_matching': True,
-    }]
-
-    def _real_extract(self, url):
-        _, video = self._check_download_just_video(url, 'WL')
-        if video:
-            return video
-        _, playlist = self._extract_playlist('WL')
-        return playlist
-
-
-class YoutubeFavouritesIE(YoutubeBaseInfoExtractor):
-    IE_NAME = 'youtube:favorites'
-    IE_DESC = 'YouTube.com favourite videos, ":ytfav" for short (requires authentication)'
-    _VALID_URL = r'https?://(?:www\.)?youtube\.com/my_favorites|:ytfav(?:ou?rites)?'
-    _LOGIN_REQUIRED = True
-
-    def _real_extract(self, url):
-        webpage = self._download_webpage('https://www.youtube.com/my_favorites', 'Youtube Favourites videos')
-        playlist_id = self._search_regex(r'list=(.+?)["&]', webpage, 'favourites playlist id')
-        return self.url_result(playlist_id, 'YoutubePlaylist')
-
-
-class YoutubeRecommendedIE(YoutubeFeedsInfoExtractor):
-    IE_DESC = 'YouTube.com recommended videos, ":ytrec" for short (requires authentication)'
-    _VALID_URL = r'https?://(?:www\.)?youtube\.com/feed/recommended|:ytrec(?:ommended)?'
-    _FEED_NAME = 'recommended'
-    _PLAYLIST_TITLE = 'Youtube Recommended videos'
-
-
-class YoutubeSubscriptionsIE(YoutubeFeedsInfoExtractor):
-    IE_DESC = 'YouTube.com subscriptions feed, "ytsubs" keyword (requires authentication)'
-    _VALID_URL = r'https?://(?:www\.)?youtube\.com/feed/subscriptions|:ytsubs(?:criptions)?'
-    _FEED_NAME = 'subscriptions'
-    _PLAYLIST_TITLE = 'Youtube Subscriptions'
-
-
-class YoutubeHistoryIE(YoutubeFeedsInfoExtractor):
-    IE_DESC = 'Youtube watch history, ":ythistory" for short (requires authentication)'
-    _VALID_URL = r'https?://(?:www\.)?youtube\.com/feed/history|:ythistory'
-    _FEED_NAME = 'history'
-    _PLAYLIST_TITLE = 'Youtube History'
-
-
-class YoutubeTruncatedURLIE(InfoExtractor):
-    IE_NAME = 'youtube:truncated_url'
-    IE_DESC = False  # Do not list
-    _VALID_URL = r'''(?x)
-        (?:https?://)?
-        (?:\w+\.)?[yY][oO][uU][tT][uU][bB][eE](?:-nocookie)?\.com/
-        (?:watch\?(?:
-            feature=[a-z_]+|
-            annotation_id=annotation_[^&]+|
-            x-yt-cl=[0-9]+|
-            hl=[^&]*|
-            t=[0-9]+
-        )?
-        |
-            attribution_link\?a=[^&]+
-        )
-        $
-    '''
-
-    _TESTS = [{
-        'url': 'https://www.youtube.com/watch?annotation_id=annotation_3951667041',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.youtube.com/watch?',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.youtube.com/watch?x-yt-cl=84503534',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.youtube.com/watch?feature=foo',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.youtube.com/watch?hl=en-GB',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.youtube.com/watch?t=2372',
-        'only_matching': True,
-    }]
-
-    def _real_extract(self, url):
-        raise ExtractorError(
-            'Did you forget to quote the URL? Remember that & is a meta '
-            'character in most shells, so you want to put the URL in quotes, '
-            'like  youtube-dl '
-            '"https://www.youtube.com/watch?feature=foo&v=BaW_jenozKc" '
-            ' or simply  youtube-dl BaW_jenozKc  .',
-            expected=True)
-
-
-class YoutubeTruncatedIDIE(InfoExtractor):
-    IE_NAME = 'youtube:truncated_id'
-    IE_DESC = False  # Do not list
-    _VALID_URL = r'https?://(?:www\.)?youtube\.com/watch\?v=(?P<id>[0-9A-Za-z_-]{1,10})$'
-
-    _TESTS = [{
-        'url': 'https://www.youtube.com/watch?v=N_708QY7Ob',
-        'only_matching': True,
-    }]
-
-    def _real_extract(self, url):
-        video_id = self._match_id(url)
-        raise ExtractorError(
-            'Incomplete YouTube ID %s. URL %s looks truncated.' % (video_id, url),
-            expected=True)
diff --git a/youtube_dl/extractor/youtube_unmodified_reference.py b/youtube_dl/extractor/youtube_unmodified_reference.py
deleted file mode 100644
index f002d87..0000000
--- a/youtube_dl/extractor/youtube_unmodified_reference.py
+++ /dev/null
@@ -1,3325 +0,0 @@
-# coding: utf-8
-
-from __future__ import unicode_literals
-
-
-import itertools
-import json
-import os.path
-import random
-import re
-import time
-import traceback
-
-from .common import InfoExtractor, SearchInfoExtractor
-from ..jsinterp import JSInterpreter
-from ..swfinterp import SWFInterpreter
-from ..compat import (
-    compat_chr,
-    compat_HTTPError,
-    compat_kwargs,
-    compat_parse_qs,
-    compat_urllib_parse_unquote,
-    compat_urllib_parse_unquote_plus,
-    compat_urllib_parse_urlencode,
-    compat_urllib_parse_urlparse,
-    compat_urlparse,
-    compat_str,
-)
-from ..utils import (
-    bool_or_none,
-    clean_html,
-    dict_get,
-    error_to_compat_str,
-    extract_attributes,
-    ExtractorError,
-    float_or_none,
-    get_element_by_attribute,
-    get_element_by_id,
-    int_or_none,
-    mimetype2ext,
-    orderedSet,
-    parse_codecs,
-    parse_duration,
-    remove_quotes,
-    remove_start,
-    smuggle_url,
-    str_or_none,
-    str_to_int,
-    try_get,
-    unescapeHTML,
-    unified_strdate,
-    unsmuggle_url,
-    uppercase_escape,
-    url_or_none,
-    urlencode_postdata,
-)
-
-
-class YoutubeBaseInfoExtractor(InfoExtractor):
-    """Provide base functions for Youtube extractors"""
-    _LOGIN_URL = 'https://accounts.google.com/ServiceLogin'
-    _TWOFACTOR_URL = 'https://accounts.google.com/signin/challenge'
-
-    _LOOKUP_URL = 'https://accounts.google.com/_/signin/sl/lookup'
-    _CHALLENGE_URL = 'https://accounts.google.com/_/signin/sl/challenge'
-    _TFA_URL = 'https://accounts.google.com/_/signin/challenge?hl=en&TL={0}'
-
-    _NETRC_MACHINE = 'youtube'
-    # If True it will raise an error if no login info is provided
-    _LOGIN_REQUIRED = False
-
-    _PLAYLIST_ID_RE = r'(?:PL|LL|EC|UU|FL|RD|UL|TL|OLAK5uy_)[0-9A-Za-z-_]{10,}'
-
-    def _set_language(self):
-        self._set_cookie(
-            '.youtube.com', 'PREF', 'f1=50000000&hl=en',
-            # YouTube sets the expire time to about two months
-            expire_time=time.time() + 2 * 30 * 24 * 3600)
-
-    def _ids_to_results(self, ids):
-        return [
-            self.url_result(vid_id, 'Youtube', video_id=vid_id)
-            for vid_id in ids]
-
-    def _login(self):
-        """
-        Attempt to log in to YouTube.
-        True is returned if successful or skipped.
-        False is returned if login failed.
-
-        If _LOGIN_REQUIRED is set and no authentication was provided, an error is raised.
-        """
-        username, password = self._get_login_info()
-        # No authentication to be performed
-        if username is None:
-            if self._LOGIN_REQUIRED and self._downloader.params.get('cookiefile') is None:
-                raise ExtractorError('No login info available, needed for using %s.' % self.IE_NAME, expected=True)
-            return True
-
-        login_page = self._download_webpage(
-            self._LOGIN_URL, None,
-            note='Downloading login page',
-            errnote='unable to fetch login page', fatal=False)
-        if login_page is False:
-            return
-
-        login_form = self._hidden_inputs(login_page)
-
-        def req(url, f_req, note, errnote):
-            data = login_form.copy()
-            data.update({
-                'pstMsg': 1,
-                'checkConnection': 'youtube',
-                'checkedDomains': 'youtube',
-                'hl': 'en',
-                'deviceinfo': '[null,null,null,[],null,"US",null,null,[],"GlifWebSignIn",null,[null,null,[]]]',
-                'f.req': json.dumps(f_req),
-                'flowName': 'GlifWebSignIn',
-                'flowEntry': 'ServiceLogin',
-                # TODO: reverse actual botguard identifier generation algo
-                'bgRequest': '["identifier",""]',
-            })
-            return self._download_json(
-                url, None, note=note, errnote=errnote,
-                transform_source=lambda s: re.sub(r'^[^[]*', '', s),
-                fatal=False,
-                data=urlencode_postdata(data), headers={
-                    'Content-Type': 'application/x-www-form-urlencoded;charset=utf-8',
-                    'Google-Accounts-XSRF': 1,
-                })
-
-        def warn(message):
-            self._downloader.report_warning(message)
-
-        lookup_req = [
-            username,
-            None, [], None, 'US', None, None, 2, False, True,
-            [
-                None, None,
-                [2, 1, None, 1,
-                 'https://accounts.google.com/ServiceLogin?passive=true&continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Fnext%3D%252F%26action_handle_signin%3Dtrue%26hl%3Den%26app%3Ddesktop%26feature%3Dsign_in_button&hl=en&service=youtube&uilel=3&requestPath=%2FServiceLogin&Page=PasswordSeparationSignIn',
-                 None, [], 4],
-                1, [None, None, []], None, None, None, True
-            ],
-            username,
-        ]
-
-        lookup_results = req(
-            self._LOOKUP_URL, lookup_req,
-            'Looking up account info', 'Unable to look up account info')
-
-        if lookup_results is False:
-            return False
-
-        user_hash = try_get(lookup_results, lambda x: x[0][2], compat_str)
-        if not user_hash:
-            warn('Unable to extract user hash')
-            return False
-
-        challenge_req = [
-            user_hash,
-            None, 1, None, [1, None, None, None, [password, None, True]],
-            [
-                None, None, [2, 1, None, 1, 'https://accounts.google.com/ServiceLogin?passive=true&continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Fnext%3D%252F%26action_handle_signin%3Dtrue%26hl%3Den%26app%3Ddesktop%26feature%3Dsign_in_button&hl=en&service=youtube&uilel=3&requestPath=%2FServiceLogin&Page=PasswordSeparationSignIn', None, [], 4],
-                1, [None, None, []], None, None, None, True
-            ]]
-
-        challenge_results = req(
-            self._CHALLENGE_URL, challenge_req,
-            'Logging in', 'Unable to log in')
-
-        if challenge_results is False:
-            return
-
-        login_res = try_get(challenge_results, lambda x: x[0][5], list)
-        if login_res:
-            login_msg = try_get(login_res, lambda x: x[5], compat_str)
-            warn(
-                'Unable to login: %s' % 'Invalid password'
-                if login_msg == 'INCORRECT_ANSWER_ENTERED' else login_msg)
-            return False
-
-        res = try_get(challenge_results, lambda x: x[0][-1], list)
-        if not res:
-            warn('Unable to extract result entry')
-            return False
-
-        login_challenge = try_get(res, lambda x: x[0][0], list)
-        if login_challenge:
-            challenge_str = try_get(login_challenge, lambda x: x[2], compat_str)
-            if challenge_str == 'TWO_STEP_VERIFICATION':
-                # SEND_SUCCESS - TFA code has been successfully sent to phone
-                # QUOTA_EXCEEDED - reached the limit of TFA codes
-                status = try_get(login_challenge, lambda x: x[5], compat_str)
-                if status == 'QUOTA_EXCEEDED':
-                    warn('Exceeded the limit of TFA codes, try later')
-                    return False
-
-                tl = try_get(challenge_results, lambda x: x[1][2], compat_str)
-                if not tl:
-                    warn('Unable to extract TL')
-                    return False
-
-                tfa_code = self._get_tfa_info('2-step verification code')
-
-                if not tfa_code:
-                    warn(
-                        'Two-factor authentication required. Provide it either interactively or with --twofactor <code>'
-                        '(Note that only TOTP (Google Authenticator App) codes work at this time.)')
-                    return False
-
-                tfa_code = remove_start(tfa_code, 'G-')
-
-                tfa_req = [
-                    user_hash, None, 2, None,
-                    [
-                        9, None, None, None, None, None, None, None,
-                        [None, tfa_code, True, 2]
-                    ]]
-
-                tfa_results = req(
-                    self._TFA_URL.format(tl), tfa_req,
-                    'Submitting TFA code', 'Unable to submit TFA code')
-
-                if tfa_results is False:
-                    return False
-
-                tfa_res = try_get(tfa_results, lambda x: x[0][5], list)
-                if tfa_res:
-                    tfa_msg = try_get(tfa_res, lambda x: x[5], compat_str)
-                    warn(
-                        'Unable to finish TFA: %s' % 'Invalid TFA code'
-                        if tfa_msg == 'INCORRECT_ANSWER_ENTERED' else tfa_msg)
-                    return False
-
-                check_cookie_url = try_get(
-                    tfa_results, lambda x: x[0][-1][2], compat_str)
-            else:
-                CHALLENGES = {
-                    'LOGIN_CHALLENGE': "This device isn't recognized. For your security, Google wants to make sure it's really you.",
-                    'USERNAME_RECOVERY': 'Please provide additional information to aid in the recovery process.',
-                    'REAUTH': "There is something unusual about your activity. For your security, Google wants to make sure it's really you.",
-                }
-                challenge = CHALLENGES.get(
-                    challenge_str,
-                    '%s returned error %s.' % (self.IE_NAME, challenge_str))
-                warn('%s\nGo to https://accounts.google.com/, login and solve a challenge.' % challenge)
-                return False
-        else:
-            check_cookie_url = try_get(res, lambda x: x[2], compat_str)
-
-        if not check_cookie_url:
-            warn('Unable to extract CheckCookie URL')
-            return False
-
-        check_cookie_results = self._download_webpage(
-            check_cookie_url, None, 'Checking cookie', fatal=False)
-
-        if check_cookie_results is False:
-            return False
-
-        if 'https://myaccount.google.com/' not in check_cookie_results:
-            warn('Unable to log in')
-            return False
-
-        return True
-
-    def _download_webpage_handle(self, *args, **kwargs):
-        query = kwargs.get('query', {}).copy()
-        query['disable_polymer'] = 'true'
-        kwargs['query'] = query
-        return super(YoutubeBaseInfoExtractor, self)._download_webpage_handle(
-            *args, **compat_kwargs(kwargs))
-
-    def _real_initialize(self):
-        if self._downloader is None:
-            return
-        self._set_language()
-        if not self._login():
-            return
-
-
-class YoutubeEntryListBaseInfoExtractor(YoutubeBaseInfoExtractor):
-    # Extract entries from page with "Load more" button
-    def _entries(self, page, playlist_id):
-        more_widget_html = content_html = page
-        for page_num in itertools.count(1):
-            for entry in self._process_page(content_html):
-                yield entry
-
-            mobj = re.search(r'data-uix-load-more-href="/?(?P<more>[^"]+)"', more_widget_html)
-            if not mobj:
-                break
-
-            count = 0
-            retries = 3
-            while count <= retries:
-                try:
-                    # Downloading page may result in intermittent 5xx HTTP error
-                    # that is usually worked around with a retry
-                    more = self._download_json(
-                        'https://youtube.com/%s' % mobj.group('more'), playlist_id,
-                        'Downloading page #%s%s'
-                        % (page_num, ' (retry #%d)' % count if count else ''),
-                        transform_source=uppercase_escape)
-                    break
-                except ExtractorError as e:
-                    if isinstance(e.cause, compat_HTTPError) and e.cause.code in (500, 503):
-                        count += 1
-                        if count <= retries:
-                            continue
-                    raise
-
-            content_html = more['content_html']
-            if not content_html.strip():
-                # Some webpages show a "Load more" button but they don't
-                # have more videos
-                break
-            more_widget_html = more['load_more_widget_html']
-
-
-class YoutubePlaylistBaseInfoExtractor(YoutubeEntryListBaseInfoExtractor):
-    def _process_page(self, content):
-        for video_id, video_title in self.extract_videos_from_page(content):
-            yield self.url_result(video_id, 'Youtube', video_id, video_title)
-
-    def extract_videos_from_page_impl(self, video_re, page, ids_in_page, titles_in_page):
-        for mobj in re.finditer(video_re, page):
-            # The link with index 0 is not the first video of the playlist (not sure if still actual)
-            if 'index' in mobj.groupdict() and mobj.group('id') == '0':
-                continue
-            video_id = mobj.group('id')
-            video_title = unescapeHTML(
-                mobj.group('title')) if 'title' in mobj.groupdict() else None
-            if video_title:
-                video_title = video_title.strip()
-            if video_title == '► Play all':
-                video_title = None
-            try:
-                idx = ids_in_page.index(video_id)
-                if video_title and not titles_in_page[idx]:
-                    titles_in_page[idx] = video_title
-            except ValueError:
-                ids_in_page.append(video_id)
-                titles_in_page.append(video_title)
-
-    def extract_videos_from_page(self, page):
-        ids_in_page = []
-        titles_in_page = []
-        self.extract_videos_from_page_impl(
-            self._VIDEO_RE, page, ids_in_page, titles_in_page)
-        return zip(ids_in_page, titles_in_page)
-
-
-class YoutubePlaylistsBaseInfoExtractor(YoutubeEntryListBaseInfoExtractor):
-    def _process_page(self, content):
-        for playlist_id in orderedSet(re.findall(
-                r'<h3[^>]+class="[^"]*yt-lockup-title[^"]*"[^>]*><a[^>]+href="/?playlist\?list=([0-9A-Za-z-_]{10,})"',
-                content)):
-            yield self.url_result(
-                'https://www.youtube.com/playlist?list=%s' % playlist_id, 'YoutubePlaylist')
-
-    def _real_extract(self, url):
-        playlist_id = self._match_id(url)
-        webpage = self._download_webpage(url, playlist_id)
-        title = self._og_search_title(webpage, fatal=False)
-        return self.playlist_result(self._entries(webpage, playlist_id), playlist_id, title)
-
-
-class YoutubeIE(YoutubeBaseInfoExtractor):
-    IE_DESC = 'YouTube.com'
-    _VALID_URL = r"""(?x)^
-                     (
-                         (?:https?://|//)                                    # http(s):// or protocol-independent URL
-                         (?:(?:(?:(?:\w+\.)?[yY][oO][uU][tT][uU][bB][eE](?:-nocookie)?\.com/|
-                            (?:www\.)?deturl\.com/www\.youtube\.com/|
-                            (?:www\.)?pwnyoutube\.com/|
-                            (?:www\.)?hooktube\.com/|
-                            (?:www\.)?yourepeat\.com/|
-                            tube\.majestyc\.net/|
-                            # Invidious instances taken from https://github.com/omarroth/invidious/wiki/Invidious-Instances
-                            (?:(?:www|dev)\.)?invidio\.us/|
-                            (?:(?:www|no)\.)?invidiou\.sh/|
-                            (?:(?:www|fi|de)\.)?invidious\.snopyta\.org/|
-                            (?:www\.)?invidious\.kabi\.tk/|
-                            (?:www\.)?invidious\.enkirton\.net/|
-                            (?:www\.)?invidious\.13ad\.de/|
-                            (?:www\.)?invidious\.mastodon\.host/|
-                            (?:www\.)?invidious\.nixnet\.xyz/|
-                            (?:www\.)?tube\.poal\.co/|
-                            (?:www\.)?vid\.wxzm\.sx/|
-                            (?:www\.)?yt\.elukerio\.org/|
-                            (?:www\.)?kgg2m7yk5aybusll\.onion/|
-                            (?:www\.)?qklhadlycap4cnod\.onion/|
-                            (?:www\.)?axqzx4s6s54s32yentfqojs3x5i7faxza6xo3ehd4bzzsg2ii4fv2iid\.onion/|
-                            (?:www\.)?c7hqkpkpemu6e7emz5b4vyz7idjgdvgaaa3dyimmeojqbgpea3xqjoid\.onion/|
-                            (?:www\.)?fz253lmuao3strwbfbmx46yu7acac2jz27iwtorgmbqlkurlclmancad\.onion/|
-                            (?:www\.)?invidious\.l4qlywnpwqsluw65ts7md3khrivpirse744un3x7mlskqauz5pyuzgqd\.onion/|
-                            youtube\.googleapis\.com/)                        # the various hostnames, with wildcard subdomains
-                         (?:.*?\#/)?                                          # handle anchor (#/) redirect urls
-                         (?:                                                  # the various things that can precede the ID:
-                             (?:(?:v|embed|e)/(?!videoseries))                # v/ or embed/ or e/
-                             |(?:                                             # or the v= param in all its forms
-                                 (?:(?:watch|movie)(?:_popup)?(?:\.php)?/?)?  # preceding watch(_popup|.php) or nothing (like /?v=xxxx)
-                                 (?:\?|\#!?)                                  # the params delimiter ? or # or #!
-                                 (?:.*?[&;])??                                # any other preceding param (like /?s=tuff&v=xxxx or ?s=tuff&amp;v=V36LpHqtcDY)
-                                 v=
-                             )
-                         ))
-                         |(?:
-                            youtu\.be|                                        # just youtu.be/xxxx
-                            vid\.plus|                                        # or vid.plus/xxxx
-                            zwearz\.com/watch|                                # or zwearz.com/watch/xxxx
-                         )/
-                         |(?:www\.)?cleanvideosearch\.com/media/action/yt/watch\?videoId=
-                         )
-                     )?                                                       # all until now is optional -> you can pass the naked ID
-                     ([0-9A-Za-z_-]{11})                                      # here is it! the YouTube video ID
-                     (?!.*?\blist=
-                        (?:
-                            %(playlist_id)s|                                  # combined list/video URLs are handled by the playlist IE
-                            WL                                                # WL are handled by the watch later IE
-                        )
-                     )
-                     (?(1).+)?                                                # if we found the ID, everything can follow
-                     $""" % {'playlist_id': YoutubeBaseInfoExtractor._PLAYLIST_ID_RE}
-    _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
-    _formats = {
-        '5': {'ext': 'flv', 'width': 400, 'height': 240, 'acodec': 'mp3', 'abr': 64, 'vcodec': 'h263'},
-        '6': {'ext': 'flv', 'width': 450, 'height': 270, 'acodec': 'mp3', 'abr': 64, 'vcodec': 'h263'},
-        '13': {'ext': '3gp', 'acodec': 'aac', 'vcodec': 'mp4v'},
-        '17': {'ext': '3gp', 'width': 176, 'height': 144, 'acodec': 'aac', 'abr': 24, 'vcodec': 'mp4v'},
-        '18': {'ext': 'mp4', 'width': 640, 'height': 360, 'acodec': 'aac', 'abr': 96, 'vcodec': 'h264'},
-        '22': {'ext': 'mp4', 'width': 1280, 'height': 720, 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264'},
-        '34': {'ext': 'flv', 'width': 640, 'height': 360, 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264'},
-        '35': {'ext': 'flv', 'width': 854, 'height': 480, 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264'},
-        # itag 36 videos are either 320x180 (BaW_jenozKc) or 320x240 (__2ABJjxzNo), abr varies as well
-        '36': {'ext': '3gp', 'width': 320, 'acodec': 'aac', 'vcodec': 'mp4v'},
-        '37': {'ext': 'mp4', 'width': 1920, 'height': 1080, 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264'},
-        '38': {'ext': 'mp4', 'width': 4096, 'height': 3072, 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264'},
-        '43': {'ext': 'webm', 'width': 640, 'height': 360, 'acodec': 'vorbis', 'abr': 128, 'vcodec': 'vp8'},
-        '44': {'ext': 'webm', 'width': 854, 'height': 480, 'acodec': 'vorbis', 'abr': 128, 'vcodec': 'vp8'},
-        '45': {'ext': 'webm', 'width': 1280, 'height': 720, 'acodec': 'vorbis', 'abr': 192, 'vcodec': 'vp8'},
-        '46': {'ext': 'webm', 'width': 1920, 'height': 1080, 'acodec': 'vorbis', 'abr': 192, 'vcodec': 'vp8'},
-        '59': {'ext': 'mp4', 'width': 854, 'height': 480, 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264'},
-        '78': {'ext': 'mp4', 'width': 854, 'height': 480, 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264'},
-
-
-        # 3D videos
-        '82': {'ext': 'mp4', 'height': 360, 'format_note': '3D', 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264', 'preference': -20},
-        '83': {'ext': 'mp4', 'height': 480, 'format_note': '3D', 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264', 'preference': -20},
-        '84': {'ext': 'mp4', 'height': 720, 'format_note': '3D', 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264', 'preference': -20},
-        '85': {'ext': 'mp4', 'height': 1080, 'format_note': '3D', 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264', 'preference': -20},
-        '100': {'ext': 'webm', 'height': 360, 'format_note': '3D', 'acodec': 'vorbis', 'abr': 128, 'vcodec': 'vp8', 'preference': -20},
-        '101': {'ext': 'webm', 'height': 480, 'format_note': '3D', 'acodec': 'vorbis', 'abr': 192, 'vcodec': 'vp8', 'preference': -20},
-        '102': {'ext': 'webm', 'height': 720, 'format_note': '3D', 'acodec': 'vorbis', 'abr': 192, 'vcodec': 'vp8', 'preference': -20},
-
-        # Apple HTTP Live Streaming
-        '91': {'ext': 'mp4', 'height': 144, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 48, 'vcodec': 'h264', 'preference': -10},
-        '92': {'ext': 'mp4', 'height': 240, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 48, 'vcodec': 'h264', 'preference': -10},
-        '93': {'ext': 'mp4', 'height': 360, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264', 'preference': -10},
-        '94': {'ext': 'mp4', 'height': 480, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264', 'preference': -10},
-        '95': {'ext': 'mp4', 'height': 720, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 256, 'vcodec': 'h264', 'preference': -10},
-        '96': {'ext': 'mp4', 'height': 1080, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 256, 'vcodec': 'h264', 'preference': -10},
-        '132': {'ext': 'mp4', 'height': 240, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 48, 'vcodec': 'h264', 'preference': -10},
-        '151': {'ext': 'mp4', 'height': 72, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 24, 'vcodec': 'h264', 'preference': -10},
-
-        # DASH mp4 video
-        '133': {'ext': 'mp4', 'height': 240, 'format_note': 'DASH video', 'vcodec': 'h264'},
-        '134': {'ext': 'mp4', 'height': 360, 'format_note': 'DASH video', 'vcodec': 'h264'},
-        '135': {'ext': 'mp4', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'h264'},
-        '136': {'ext': 'mp4', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'h264'},
-        '137': {'ext': 'mp4', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'h264'},
-        '138': {'ext': 'mp4', 'format_note': 'DASH video', 'vcodec': 'h264'},  # Height can vary (https://github.com/ytdl-org/youtube-dl/issues/4559)
-        '160': {'ext': 'mp4', 'height': 144, 'format_note': 'DASH video', 'vcodec': 'h264'},
-        '212': {'ext': 'mp4', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'h264'},
-        '264': {'ext': 'mp4', 'height': 1440, 'format_note': 'DASH video', 'vcodec': 'h264'},
-        '298': {'ext': 'mp4', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'h264', 'fps': 60},
-        '299': {'ext': 'mp4', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'h264', 'fps': 60},
-        '266': {'ext': 'mp4', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'h264'},
-
-        # Dash mp4 audio
-        '139': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'abr': 48, 'container': 'm4a_dash'},
-        '140': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'abr': 128, 'container': 'm4a_dash'},
-        '141': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'abr': 256, 'container': 'm4a_dash'},
-        '256': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'container': 'm4a_dash'},
-        '258': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'container': 'm4a_dash'},
-        '325': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'dtse', 'container': 'm4a_dash'},
-        '328': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'ec-3', 'container': 'm4a_dash'},
-
-        # Dash webm
-        '167': {'ext': 'webm', 'height': 360, 'width': 640, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
-        '168': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
-        '169': {'ext': 'webm', 'height': 720, 'width': 1280, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
-        '170': {'ext': 'webm', 'height': 1080, 'width': 1920, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
-        '218': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
-        '219': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
-        '278': {'ext': 'webm', 'height': 144, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp9'},
-        '242': {'ext': 'webm', 'height': 240, 'format_note': 'DASH video', 'vcodec': 'vp9'},
-        '243': {'ext': 'webm', 'height': 360, 'format_note': 'DASH video', 'vcodec': 'vp9'},
-        '244': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'vp9'},
-        '245': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'vp9'},
-        '246': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'vp9'},
-        '247': {'ext': 'webm', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'vp9'},
-        '248': {'ext': 'webm', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'vp9'},
-        '271': {'ext': 'webm', 'height': 1440, 'format_note': 'DASH video', 'vcodec': 'vp9'},
-        # itag 272 videos are either 3840x2160 (e.g. RtoitU2A-3E) or 7680x4320 (sLprVF6d7Ug)
-        '272': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'vp9'},
-        '302': {'ext': 'webm', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60},
-        '303': {'ext': 'webm', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60},
-        '308': {'ext': 'webm', 'height': 1440, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60},
-        '313': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'vp9'},
-        '315': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60},
-
-        # Dash webm audio
-        '171': {'ext': 'webm', 'acodec': 'vorbis', 'format_note': 'DASH audio', 'abr': 128},
-        '172': {'ext': 'webm', 'acodec': 'vorbis', 'format_note': 'DASH audio', 'abr': 256},
-
-        # Dash webm audio with opus inside
-        '249': {'ext': 'webm', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 50},
-        '250': {'ext': 'webm', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 70},
-        '251': {'ext': 'webm', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 160},
-
-        # RTMP (unnamed)
-        '_rtmp': {'protocol': 'rtmp'},
-
-        # av01 video only formats sometimes served with "unknown" codecs
-        '394': {'acodec': 'none', 'vcodec': 'av01.0.05M.08'},
-        '395': {'acodec': 'none', 'vcodec': 'av01.0.05M.08'},
-        '396': {'acodec': 'none', 'vcodec': 'av01.0.05M.08'},
-        '397': {'acodec': 'none', 'vcodec': 'av01.0.05M.08'},
-    }
-    _SUBTITLE_FORMATS = ('srv1', 'srv2', 'srv3', 'ttml', 'vtt')
-
-    _GEO_BYPASS = False
-
-    IE_NAME = 'youtube'
-    _TESTS = [
-        {
-            'url': 'https://www.youtube.com/watch?v=BaW_jenozKc&t=1s&end=9',
-            'info_dict': {
-                'id': 'BaW_jenozKc',
-                'ext': 'mp4',
-                'title': 'youtube-dl test video "\'/\\ä↭𝕐',
-                'uploader': 'Philipp Hagemeister',
-                'uploader_id': 'phihag',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/phihag',
-                'channel_id': 'UCLqxVugv74EIW3VWh2NOa3Q',
-                'channel_url': r're:https?://(?:www\.)?youtube\.com/channel/UCLqxVugv74EIW3VWh2NOa3Q',
-                'upload_date': '20121002',
-                'description': 'test chars:  "\'/\\ä↭𝕐\ntest URL: https://github.com/rg3/youtube-dl/issues/1892\n\nThis is a test video for youtube-dl.\n\nFor more information, contact phihag@phihag.de .',
-                'categories': ['Science & Technology'],
-                'tags': ['youtube-dl'],
-                'duration': 10,
-                'view_count': int,
-                'like_count': int,
-                'dislike_count': int,
-                'start_time': 1,
-                'end_time': 9,
-            }
-        },
-        {
-            'url': 'https://www.youtube.com/watch?v=UxxajLWwzqY',
-            'note': 'Test generic use_cipher_signature video (#897)',
-            'info_dict': {
-                'id': 'UxxajLWwzqY',
-                'ext': 'mp4',
-                'upload_date': '20120506',
-                'title': 'Icona Pop - I Love It (feat. Charli XCX) [OFFICIAL VIDEO]',
-                'alt_title': 'I Love It (feat. Charli XCX)',
-                'description': 'md5:f3ceb5ef83a08d95b9d146f973157cc8',
-                'tags': ['Icona Pop i love it', 'sweden', 'pop music', 'big beat records', 'big beat', 'charli',
-                         'xcx', 'charli xcx', 'girls', 'hbo', 'i love it', "i don't care", 'icona', 'pop',
-                         'iconic ep', 'iconic', 'love', 'it'],
-                'duration': 180,
-                'uploader': 'Icona Pop',
-                'uploader_id': 'IconaPop',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/IconaPop',
-                'creator': 'Icona Pop',
-                'track': 'I Love It (feat. Charli XCX)',
-                'artist': 'Icona Pop',
-            }
-        },
-        {
-            'url': 'https://www.youtube.com/watch?v=07FYdnEawAQ',
-            'note': 'Test VEVO video with age protection (#956)',
-            'info_dict': {
-                'id': '07FYdnEawAQ',
-                'ext': 'mp4',
-                'upload_date': '20130703',
-                'title': 'Justin Timberlake - Tunnel Vision (Official Music Video) (Explicit)',
-                'alt_title': 'Tunnel Vision',
-                'description': 'md5:07dab3356cde4199048e4c7cd93471e1',
-                'duration': 419,
-                'uploader': 'justintimberlakeVEVO',
-                'uploader_id': 'justintimberlakeVEVO',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/justintimberlakeVEVO',
-                'creator': 'Justin Timberlake',
-                'track': 'Tunnel Vision',
-                'artist': 'Justin Timberlake',
-                'age_limit': 18,
-            }
-        },
-        {
-            'url': '//www.YouTube.com/watch?v=yZIXLfi8CZQ',
-            'note': 'Embed-only video (#1746)',
-            'info_dict': {
-                'id': 'yZIXLfi8CZQ',
-                'ext': 'mp4',
-                'upload_date': '20120608',
-                'title': 'Principal Sexually Assaults A Teacher - Episode 117 - 8th June 2012',
-                'description': 'md5:09b78bd971f1e3e289601dfba15ca4f7',
-                'uploader': 'SET India',
-                'uploader_id': 'setindia',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/setindia',
-                'age_limit': 18,
-            }
-        },
-        {
-            'url': 'https://www.youtube.com/watch?v=BaW_jenozKc&v=UxxajLWwzqY',
-            'note': 'Use the first video ID in the URL',
-            'info_dict': {
-                'id': 'BaW_jenozKc',
-                'ext': 'mp4',
-                'title': 'youtube-dl test video "\'/\\ä↭𝕐',
-                'uploader': 'Philipp Hagemeister',
-                'uploader_id': 'phihag',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/phihag',
-                'upload_date': '20121002',
-                'description': 'test chars:  "\'/\\ä↭𝕐\ntest URL: https://github.com/rg3/youtube-dl/issues/1892\n\nThis is a test video for youtube-dl.\n\nFor more information, contact phihag@phihag.de .',
-                'categories': ['Science & Technology'],
-                'tags': ['youtube-dl'],
-                'duration': 10,
-                'view_count': int,
-                'like_count': int,
-                'dislike_count': int,
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            'url': 'https://www.youtube.com/watch?v=a9LDPn-MO4I',
-            'note': '256k DASH audio (format 141) via DASH manifest',
-            'info_dict': {
-                'id': 'a9LDPn-MO4I',
-                'ext': 'm4a',
-                'upload_date': '20121002',
-                'uploader_id': '8KVIDEO',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/8KVIDEO',
-                'description': '',
-                'uploader': '8KVIDEO',
-                'title': 'UHDTV TEST 8K VIDEO.mp4'
-            },
-            'params': {
-                'youtube_include_dash_manifest': True,
-                'format': '141',
-            },
-            'skip': 'format 141 not served anymore',
-        },
-        # DASH manifest with encrypted signature
-        {
-            'url': 'https://www.youtube.com/watch?v=IB3lcPjvWLA',
-            'info_dict': {
-                'id': 'IB3lcPjvWLA',
-                'ext': 'm4a',
-                'title': 'Afrojack, Spree Wilson - The Spark (Official Music Video) ft. Spree Wilson',
-                'description': 'md5:8f5e2b82460520b619ccac1f509d43bf',
-                'duration': 244,
-                'uploader': 'AfrojackVEVO',
-                'uploader_id': 'AfrojackVEVO',
-                'upload_date': '20131011',
-            },
-            'params': {
-                'youtube_include_dash_manifest': True,
-                'format': '141/bestaudio[ext=m4a]',
-            },
-        },
-        # JS player signature function name containing $
-        {
-            'url': 'https://www.youtube.com/watch?v=nfWlot6h_JM',
-            'info_dict': {
-                'id': 'nfWlot6h_JM',
-                'ext': 'm4a',
-                'title': 'Taylor Swift - Shake It Off',
-                'description': 'md5:bec2185232c05479482cb5a9b82719bf',
-                'duration': 242,
-                'uploader': 'TaylorSwiftVEVO',
-                'uploader_id': 'TaylorSwiftVEVO',
-                'upload_date': '20140818',
-                'creator': 'Taylor Swift',
-            },
-            'params': {
-                'youtube_include_dash_manifest': True,
-                'format': '141/bestaudio[ext=m4a]',
-            },
-        },
-        # Controversy video
-        {
-            'url': 'https://www.youtube.com/watch?v=T4XJQO3qol8',
-            'info_dict': {
-                'id': 'T4XJQO3qol8',
-                'ext': 'mp4',
-                'duration': 219,
-                'upload_date': '20100909',
-                'uploader': 'Amazing Atheist',
-                'uploader_id': 'TheAmazingAtheist',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/TheAmazingAtheist',
-                'title': 'Burning Everyone\'s Koran',
-                'description': 'SUBSCRIBE: http://www.youtube.com/saturninefilms\n\nEven Obama has taken a stand against freedom on this issue: http://www.huffingtonpost.com/2010/09/09/obama-gma-interview-quran_n_710282.html',
-            }
-        },
-        # Normal age-gate video (No vevo, embed allowed)
-        {
-            'url': 'https://youtube.com/watch?v=HtVdAasjOgU',
-            'info_dict': {
-                'id': 'HtVdAasjOgU',
-                'ext': 'mp4',
-                'title': 'The Witcher 3: Wild Hunt - The Sword Of Destiny Trailer',
-                'description': r're:(?s).{100,}About the Game\n.*?The Witcher 3: Wild Hunt.{100,}',
-                'duration': 142,
-                'uploader': 'The Witcher',
-                'uploader_id': 'WitcherGame',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/WitcherGame',
-                'upload_date': '20140605',
-                'age_limit': 18,
-            },
-        },
-        # Age-gate video with encrypted signature
-        {
-            'url': 'https://www.youtube.com/watch?v=6kLq3WMV1nU',
-            'info_dict': {
-                'id': '6kLq3WMV1nU',
-                'ext': 'mp4',
-                'title': 'Dedication To My Ex (Miss That) (Lyric Video)',
-                'description': 'md5:33765bb339e1b47e7e72b5490139bb41',
-                'duration': 246,
-                'uploader': 'LloydVEVO',
-                'uploader_id': 'LloydVEVO',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/LloydVEVO',
-                'upload_date': '20110629',
-                'age_limit': 18,
-            },
-        },
-        # video_info is None (https://github.com/ytdl-org/youtube-dl/issues/4421)
-        # YouTube Red ad is not captured for creator
-        {
-            'url': '__2ABJjxzNo',
-            'info_dict': {
-                'id': '__2ABJjxzNo',
-                'ext': 'mp4',
-                'duration': 266,
-                'upload_date': '20100430',
-                'uploader_id': 'deadmau5',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/deadmau5',
-                'creator': 'deadmau5',
-                'description': 'md5:12c56784b8032162bb936a5f76d55360',
-                'uploader': 'deadmau5',
-                'title': 'Deadmau5 - Some Chords (HD)',
-                'alt_title': 'Some Chords',
-            },
-            'expected_warnings': [
-                'DASH manifest missing',
-            ]
-        },
-        # Olympics (https://github.com/ytdl-org/youtube-dl/issues/4431)
-        {
-            'url': 'lqQg6PlCWgI',
-            'info_dict': {
-                'id': 'lqQg6PlCWgI',
-                'ext': 'mp4',
-                'duration': 6085,
-                'upload_date': '20150827',
-                'uploader_id': 'olympic',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/olympic',
-                'description': 'HO09  - Women -  GER-AUS - Hockey - 31 July 2012 - London 2012 Olympic Games',
-                'uploader': 'Olympic',
-                'title': 'Hockey - Women -  GER-AUS - London 2012 Olympic Games',
-            },
-            'params': {
-                'skip_download': 'requires avconv',
-            }
-        },
-        # Non-square pixels
-        {
-            'url': 'https://www.youtube.com/watch?v=_b-2C3KPAM0',
-            'info_dict': {
-                'id': '_b-2C3KPAM0',
-                'ext': 'mp4',
-                'stretched_ratio': 16 / 9.,
-                'duration': 85,
-                'upload_date': '20110310',
-                'uploader_id': 'AllenMeow',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/AllenMeow',
-                'description': 'made by Wacom from Korea | 字幕&加油添醋 by TY\'s Allen | 感謝heylisa00cavey1001同學熱情提供梗及翻譯',
-                'uploader': '孫ᄋᄅ',
-                'title': '[A-made] 變態妍字幕版 太妍 我就是這樣的人',
-            },
-        },
-        # url_encoded_fmt_stream_map is empty string
-        {
-            'url': 'qEJwOuvDf7I',
-            'info_dict': {
-                'id': 'qEJwOuvDf7I',
-                'ext': 'webm',
-                'title': 'Обсуждение судебной практики по выборам 14 сентября 2014 года в Санкт-Петербурге',
-                'description': '',
-                'upload_date': '20150404',
-                'uploader_id': 'spbelect',
-                'uploader': 'Наблюдатели Петербурга',
-            },
-            'params': {
-                'skip_download': 'requires avconv',
-            },
-            'skip': 'This live event has ended.',
-        },
-        # Extraction from multiple DASH manifests (https://github.com/ytdl-org/youtube-dl/pull/6097)
-        {
-            'url': 'https://www.youtube.com/watch?v=FIl7x6_3R5Y',
-            'info_dict': {
-                'id': 'FIl7x6_3R5Y',
-                'ext': 'webm',
-                'title': 'md5:7b81415841e02ecd4313668cde88737a',
-                'description': 'md5:116377fd2963b81ec4ce64b542173306',
-                'duration': 220,
-                'upload_date': '20150625',
-                'uploader_id': 'dorappi2000',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/dorappi2000',
-                'uploader': 'dorappi2000',
-                'formats': 'mincount:31',
-            },
-            'skip': 'not actual anymore',
-        },
-        # DASH manifest with segment_list
-        {
-            'url': 'https://www.youtube.com/embed/CsmdDsKjzN8',
-            'md5': '8ce563a1d667b599d21064e982ab9e31',
-            'info_dict': {
-                'id': 'CsmdDsKjzN8',
-                'ext': 'mp4',
-                'upload_date': '20150501',  # According to '<meta itemprop="datePublished"', but in other places it's 20150510
-                'uploader': 'Airtek',
-                'description': 'Retransmisión en directo de la XVIII media maratón de Zaragoza.',
-                'uploader_id': 'UCzTzUmjXxxacNnL8I3m4LnQ',
-                'title': 'Retransmisión XVIII Media maratón Zaragoza 2015',
-            },
-            'params': {
-                'youtube_include_dash_manifest': True,
-                'format': '135',  # bestvideo
-            },
-            'skip': 'This live event has ended.',
-        },
-        {
-            # Multifeed videos (multiple cameras), URL is for Main Camera
-            'url': 'https://www.youtube.com/watch?v=jqWvoWXjCVs',
-            'info_dict': {
-                'id': 'jqWvoWXjCVs',
-                'title': 'teamPGP: Rocket League Noob Stream',
-                'description': 'md5:dc7872fb300e143831327f1bae3af010',
-            },
-            'playlist': [{
-                'info_dict': {
-                    'id': 'jqWvoWXjCVs',
-                    'ext': 'mp4',
-                    'title': 'teamPGP: Rocket League Noob Stream (Main Camera)',
-                    'description': 'md5:dc7872fb300e143831327f1bae3af010',
-                    'duration': 7335,
-                    'upload_date': '20150721',
-                    'uploader': 'Beer Games Beer',
-                    'uploader_id': 'beergamesbeer',
-                    'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/beergamesbeer',
-                    'license': 'Standard YouTube License',
-                },
-            }, {
-                'info_dict': {
-                    'id': '6h8e8xoXJzg',
-                    'ext': 'mp4',
-                    'title': 'teamPGP: Rocket League Noob Stream (kreestuh)',
-                    'description': 'md5:dc7872fb300e143831327f1bae3af010',
-                    'duration': 7337,
-                    'upload_date': '20150721',
-                    'uploader': 'Beer Games Beer',
-                    'uploader_id': 'beergamesbeer',
-                    'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/beergamesbeer',
-                    'license': 'Standard YouTube License',
-                },
-            }, {
-                'info_dict': {
-                    'id': 'PUOgX5z9xZw',
-                    'ext': 'mp4',
-                    'title': 'teamPGP: Rocket League Noob Stream (grizzle)',
-                    'description': 'md5:dc7872fb300e143831327f1bae3af010',
-                    'duration': 7337,
-                    'upload_date': '20150721',
-                    'uploader': 'Beer Games Beer',
-                    'uploader_id': 'beergamesbeer',
-                    'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/beergamesbeer',
-                    'license': 'Standard YouTube License',
-                },
-            }, {
-                'info_dict': {
-                    'id': 'teuwxikvS5k',
-                    'ext': 'mp4',
-                    'title': 'teamPGP: Rocket League Noob Stream (zim)',
-                    'description': 'md5:dc7872fb300e143831327f1bae3af010',
-                    'duration': 7334,
-                    'upload_date': '20150721',
-                    'uploader': 'Beer Games Beer',
-                    'uploader_id': 'beergamesbeer',
-                    'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/beergamesbeer',
-                    'license': 'Standard YouTube License',
-                },
-            }],
-            'params': {
-                'skip_download': True,
-            },
-            'skip': 'This video is not available.',
-        },
-        {
-            # Multifeed video with comma in title (see https://github.com/ytdl-org/youtube-dl/issues/8536)
-            'url': 'https://www.youtube.com/watch?v=gVfLd0zydlo',
-            'info_dict': {
-                'id': 'gVfLd0zydlo',
-                'title': 'DevConf.cz 2016 Day 2 Workshops 1 14:00 - 15:30',
-            },
-            'playlist_count': 2,
-            'skip': 'Not multifeed anymore',
-        },
-        {
-            'url': 'https://vid.plus/FlRa-iH7PGw',
-            'only_matching': True,
-        },
-        {
-            'url': 'https://zwearz.com/watch/9lWxNJF-ufM/electra-woman-dyna-girl-official-trailer-grace-helbig.html',
-            'only_matching': True,
-        },
-        {
-            # Title with JS-like syntax "};" (see https://github.com/ytdl-org/youtube-dl/issues/7468)
-            # Also tests cut-off URL expansion in video description (see
-            # https://github.com/ytdl-org/youtube-dl/issues/1892,
-            # https://github.com/ytdl-org/youtube-dl/issues/8164)
-            'url': 'https://www.youtube.com/watch?v=lsguqyKfVQg',
-            'info_dict': {
-                'id': 'lsguqyKfVQg',
-                'ext': 'mp4',
-                'title': '{dark walk}; Loki/AC/Dishonored; collab w/Elflover21',
-                'alt_title': 'Dark Walk - Position Music',
-                'description': 'md5:8085699c11dc3f597ce0410b0dcbb34a',
-                'duration': 133,
-                'upload_date': '20151119',
-                'uploader_id': 'IronSoulElf',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/IronSoulElf',
-                'uploader': 'IronSoulElf',
-                'creator': 'Todd Haberman,  Daniel Law Heath and Aaron Kaplan',
-                'track': 'Dark Walk - Position Music',
-                'artist': 'Todd Haberman,  Daniel Law Heath and Aaron Kaplan',
-                'album': 'Position Music - Production Music Vol. 143 - Dark Walk',
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            # Tags with '};' (see https://github.com/ytdl-org/youtube-dl/issues/7468)
-            'url': 'https://www.youtube.com/watch?v=Ms7iBXnlUO8',
-            'only_matching': True,
-        },
-        {
-            # Video with yt:stretch=17:0
-            'url': 'https://www.youtube.com/watch?v=Q39EVAstoRM',
-            'info_dict': {
-                'id': 'Q39EVAstoRM',
-                'ext': 'mp4',
-                'title': 'Clash Of Clans#14 Dicas De Ataque Para CV 4',
-                'description': 'md5:ee18a25c350637c8faff806845bddee9',
-                'upload_date': '20151107',
-                'uploader_id': 'UCCr7TALkRbo3EtFzETQF1LA',
-                'uploader': 'CH GAMER DROID',
-            },
-            'params': {
-                'skip_download': True,
-            },
-            'skip': 'This video does not exist.',
-        },
-        {
-            # Video licensed under Creative Commons
-            'url': 'https://www.youtube.com/watch?v=M4gD1WSo5mA',
-            'info_dict': {
-                'id': 'M4gD1WSo5mA',
-                'ext': 'mp4',
-                'title': 'md5:e41008789470fc2533a3252216f1c1d1',
-                'description': 'md5:a677553cf0840649b731a3024aeff4cc',
-                'duration': 721,
-                'upload_date': '20150127',
-                'uploader_id': 'BerkmanCenter',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/BerkmanCenter',
-                'uploader': 'The Berkman Klein Center for Internet & Society',
-                'license': 'Creative Commons Attribution license (reuse allowed)',
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            # Channel-like uploader_url
-            'url': 'https://www.youtube.com/watch?v=eQcmzGIKrzg',
-            'info_dict': {
-                'id': 'eQcmzGIKrzg',
-                'ext': 'mp4',
-                'title': 'Democratic Socialism and Foreign Policy | Bernie Sanders',
-                'description': 'md5:dda0d780d5a6e120758d1711d062a867',
-                'duration': 4060,
-                'upload_date': '20151119',
-                'uploader': 'Bernie Sanders',
-                'uploader_id': 'UCH1dpzjCEiGAt8CXkryhkZg',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/channel/UCH1dpzjCEiGAt8CXkryhkZg',
-                'license': 'Creative Commons Attribution license (reuse allowed)',
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            'url': 'https://www.youtube.com/watch?feature=player_embedded&amp;amp;v=V36LpHqtcDY',
-            'only_matching': True,
-        },
-        {
-            # YouTube Red paid video (https://github.com/ytdl-org/youtube-dl/issues/10059)
-            'url': 'https://www.youtube.com/watch?v=i1Ko8UG-Tdo',
-            'only_matching': True,
-        },
-        {
-            # Rental video preview
-            'url': 'https://www.youtube.com/watch?v=yYr8q0y5Jfg',
-            'info_dict': {
-                'id': 'uGpuVWrhIzE',
-                'ext': 'mp4',
-                'title': 'Piku - Trailer',
-                'description': 'md5:c36bd60c3fd6f1954086c083c72092eb',
-                'upload_date': '20150811',
-                'uploader': 'FlixMatrix',
-                'uploader_id': 'FlixMatrixKaravan',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/FlixMatrixKaravan',
-                'license': 'Standard YouTube License',
-            },
-            'params': {
-                'skip_download': True,
-            },
-            'skip': 'This video is not available.',
-        },
-        {
-            # YouTube Red video with episode data
-            'url': 'https://www.youtube.com/watch?v=iqKdEhx-dD4',
-            'info_dict': {
-                'id': 'iqKdEhx-dD4',
-                'ext': 'mp4',
-                'title': 'Isolation - Mind Field (Ep 1)',
-                'description': 'md5:46a29be4ceffa65b92d277b93f463c0f',
-                'duration': 2085,
-                'upload_date': '20170118',
-                'uploader': 'Vsauce',
-                'uploader_id': 'Vsauce',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/Vsauce',
-                'series': 'Mind Field',
-                'season_number': 1,
-                'episode_number': 1,
-            },
-            'params': {
-                'skip_download': True,
-            },
-            'expected_warnings': [
-                'Skipping DASH manifest',
-            ],
-        },
-        {
-            # The following content has been identified by the YouTube community
-            # as inappropriate or offensive to some audiences.
-            'url': 'https://www.youtube.com/watch?v=6SJNVb0GnPI',
-            'info_dict': {
-                'id': '6SJNVb0GnPI',
-                'ext': 'mp4',
-                'title': 'Race Differences in Intelligence',
-                'description': 'md5:5d161533167390427a1f8ee89a1fc6f1',
-                'duration': 965,
-                'upload_date': '20140124',
-                'uploader': 'New Century Foundation',
-                'uploader_id': 'UCEJYpZGqgUob0zVVEaLhvVg',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/channel/UCEJYpZGqgUob0zVVEaLhvVg',
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            # itag 212
-            'url': '1t24XAntNCY',
-            'only_matching': True,
-        },
-        {
-            # geo restricted to JP
-            'url': 'sJL6WA-aGkQ',
-            'only_matching': True,
-        },
-        {
-            'url': 'https://www.youtube.com/watch?v=MuAGGZNfUkU&list=RDMM',
-            'only_matching': True,
-        },
-        {
-            'url': 'https://invidio.us/watch?v=BaW_jenozKc',
-            'only_matching': True,
-        },
-        {
-            # DRM protected
-            'url': 'https://www.youtube.com/watch?v=s7_qI6_mIXc',
-            'only_matching': True,
-        },
-        {
-            # Video with unsupported adaptive stream type formats
-            'url': 'https://www.youtube.com/watch?v=Z4Vy8R84T1U',
-            'info_dict': {
-                'id': 'Z4Vy8R84T1U',
-                'ext': 'mp4',
-                'title': 'saman SMAN 53 Jakarta(Sancety) opening COFFEE4th at SMAN 53 Jakarta',
-                'description': 'md5:d41d8cd98f00b204e9800998ecf8427e',
-                'duration': 433,
-                'upload_date': '20130923',
-                'uploader': 'Amelia Putri Harwita',
-                'uploader_id': 'UCpOxM49HJxmC1qCalXyB3_Q',
-                'uploader_url': r're:https?://(?:www\.)?youtube\.com/channel/UCpOxM49HJxmC1qCalXyB3_Q',
-                'formats': 'maxcount:10',
-            },
-            'params': {
-                'skip_download': True,
-                'youtube_include_dash_manifest': False,
-            },
-        },
-        {
-            # Youtube Music Auto-generated description
-            'url': 'https://music.youtube.com/watch?v=MgNrAu2pzNs',
-            'info_dict': {
-                'id': 'MgNrAu2pzNs',
-                'ext': 'mp4',
-                'title': 'Voyeur Girl',
-                'description': 'md5:7ae382a65843d6df2685993e90a8628f',
-                'upload_date': '20190312',
-                'uploader': 'Various Artists - Topic',
-                'uploader_id': 'UCVWKBi1ELZn0QX2CBLSkiyw',
-                'artist': 'Stephen',
-                'track': 'Voyeur Girl',
-                'album': 'it\'s too much love to know my dear',
-                'release_date': '20190313',
-                'release_year': 2019,
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            # Youtube Music Auto-generated description
-            # Retrieve 'artist' field from 'Artist:' in video description
-            # when it is present on youtube music video
-            'url': 'https://www.youtube.com/watch?v=k0jLE7tTwjY',
-            'info_dict': {
-                'id': 'k0jLE7tTwjY',
-                'ext': 'mp4',
-                'title': 'Latch Feat. Sam Smith',
-                'description': 'md5:3cb1e8101a7c85fcba9b4fb41b951335',
-                'upload_date': '20150110',
-                'uploader': 'Various Artists - Topic',
-                'uploader_id': 'UCNkEcmYdjrH4RqtNgh7BZ9w',
-                'artist': 'Disclosure',
-                'track': 'Latch Feat. Sam Smith',
-                'album': 'Latch Featuring Sam Smith',
-                'release_date': '20121008',
-                'release_year': 2012,
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            # Youtube Music Auto-generated description
-            # handle multiple artists on youtube music video
-            'url': 'https://www.youtube.com/watch?v=74qn0eJSjpA',
-            'info_dict': {
-                'id': '74qn0eJSjpA',
-                'ext': 'mp4',
-                'title': 'Eastside',
-                'description': 'md5:290516bb73dcbfab0dcc4efe6c3de5f2',
-                'upload_date': '20180710',
-                'uploader': 'Benny Blanco - Topic',
-                'uploader_id': 'UCzqz_ksRu_WkIzmivMdIS7A',
-                'artist': 'benny blanco, Halsey, Khalid',
-                'track': 'Eastside',
-                'album': 'Eastside',
-                'release_date': '20180713',
-                'release_year': 2018,
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-        {
-            # Youtube Music Auto-generated description
-            # handle youtube music video with release_year and no release_date
-            'url': 'https://www.youtube.com/watch?v=-hcAI0g-f5M',
-            'info_dict': {
-                'id': '-hcAI0g-f5M',
-                'ext': 'mp4',
-                'title': 'Put It On Me',
-                'description': 'md5:93c55acc682ae7b0c668f2e34e1c069e',
-                'upload_date': '20180426',
-                'uploader': 'Matt Maeson - Topic',
-                'uploader_id': 'UCnEkIGqtGcQMLk73Kp-Q5LQ',
-                'artist': 'Matt Maeson',
-                'track': 'Put It On Me',
-                'album': 'The Hearse',
-                'release_date': None,
-                'release_year': 2018,
-            },
-            'params': {
-                'skip_download': True,
-            },
-        },
-    ]
-
-    def __init__(self, *args, **kwargs):
-        super(YoutubeIE, self).__init__(*args, **kwargs)
-        self._player_cache = {}
-
-    def report_video_info_webpage_download(self, video_id):
-        """Report attempt to download video info webpage."""
-        self.to_screen('%s: Downloading video info webpage' % video_id)
-
-    def report_information_extraction(self, video_id):
-        """Report attempt to extract video information."""
-        self.to_screen('%s: Extracting video information' % video_id)
-
-    def report_unavailable_format(self, video_id, format):
-        """Report extracted video URL."""
-        self.to_screen('%s: Format %s not available' % (video_id, format))
-
-    def report_rtmp_download(self):
-        """Indicate the download will use the RTMP protocol."""
-        self.to_screen('RTMP download detected')
-
-    def _signature_cache_id(self, example_sig):
-        """ Return a string representation of a signature """
-        return '.'.join(compat_str(len(part)) for part in example_sig.split('.'))
-
-    def _extract_signature_function(self, video_id, player_url, example_sig):
-        id_m = re.match(
-            r'.*?-(?P<id>[a-zA-Z0-9_-]+)(?:/watch_as3|/html5player(?:-new)?|(?:/[a-z]{2,3}_[A-Z]{2})?/base)?\.(?P<ext>[a-z]+)$',
-            player_url)
-        if not id_m:
-            raise ExtractorError('Cannot identify player %r' % player_url)
-        player_type = id_m.group('ext')
-        player_id = id_m.group('id')
-
-        # Read from filesystem cache
-        func_id = '%s_%s_%s' % (
-            player_type, player_id, self._signature_cache_id(example_sig))
-        assert os.path.basename(func_id) == func_id
-
-        cache_spec = self._downloader.cache.load('youtube-sigfuncs', func_id)
-        if cache_spec is not None:
-            return lambda s: ''.join(s[i] for i in cache_spec)
-
-        download_note = (
-            'Downloading player %s' % player_url
-            if self._downloader.params.get('verbose') else
-            'Downloading %s player %s' % (player_type, player_id)
-        )
-        if player_type == 'js':
-            code = self._download_webpage(
-                player_url, video_id,
-                note=download_note,
-                errnote='Download of %s failed' % player_url)
-            res = self._parse_sig_js(code)
-        elif player_type == 'swf':
-            urlh = self._request_webpage(
-                player_url, video_id,
-                note=download_note,
-                errnote='Download of %s failed' % player_url)
-            code = urlh.read()
-            res = self._parse_sig_swf(code)
-        else:
-            assert False, 'Invalid player type %r' % player_type
-
-        test_string = ''.join(map(compat_chr, range(len(example_sig))))
-        cache_res = res(test_string)
-        cache_spec = [ord(c) for c in cache_res]
-
-        self._downloader.cache.store('youtube-sigfuncs', func_id, cache_spec)
-        return res
-
-    def _print_sig_code(self, func, example_sig):
-        def gen_sig_code(idxs):
-            def _genslice(start, end, step):
-                starts = '' if start == 0 else str(start)
-                ends = (':%d' % (end + step)) if end + step >= 0 else ':'
-                steps = '' if step == 1 else (':%d' % step)
-                return 's[%s%s%s]' % (starts, ends, steps)
-
-            step = None
-            # Quelch pyflakes warnings - start will be set when step is set
-            start = '(Never used)'
-            for i, prev in zip(idxs[1:], idxs[:-1]):
-                if step is not None:
-                    if i - prev == step:
-                        continue
-                    yield _genslice(start, prev, step)
-                    step = None
-                    continue
-                if i - prev in [-1, 1]:
-                    step = i - prev
-                    start = prev
-                    continue
-                else:
-                    yield 's[%d]' % prev
-            if step is None:
-                yield 's[%d]' % i
-            else:
-                yield _genslice(start, i, step)
-
-        test_string = ''.join(map(compat_chr, range(len(example_sig))))
-        cache_res = func(test_string)
-        cache_spec = [ord(c) for c in cache_res]
-        expr_code = ' + '.join(gen_sig_code(cache_spec))
-        signature_id_tuple = '(%s)' % (
-            ', '.join(compat_str(len(p)) for p in example_sig.split('.')))
-        code = ('if tuple(len(p) for p in s.split(\'.\')) == %s:\n'
-                '    return %s\n') % (signature_id_tuple, expr_code)
-        self.to_screen('Extracted signature function:\n' + code)
-
-    def _parse_sig_js(self, jscode):
-        funcname = self._search_regex(
-            (r'\b[cs]\s*&&\s*[adf]\.set\([^,]+\s*,\s*encodeURIComponent\s*\(\s*(?P<sig>[a-zA-Z0-9$]+)\(',
-             r'\b[a-zA-Z0-9]+\s*&&\s*[a-zA-Z0-9]+\.set\([^,]+\s*,\s*encodeURIComponent\s*\(\s*(?P<sig>[a-zA-Z0-9$]+)\(',
-             r'(?P<sig>[a-zA-Z0-9$]+)\s*=\s*function\(\s*a\s*\)\s*{\s*a\s*=\s*a\.split\(\s*""\s*\)',
-             # Obsolete patterns
-             r'(["\'])signature\1\s*,\s*(?P<sig>[a-zA-Z0-9$]+)\(',
-             r'\.sig\|\|(?P<sig>[a-zA-Z0-9$]+)\(',
-             r'yt\.akamaized\.net/\)\s*\|\|\s*.*?\s*[cs]\s*&&\s*[adf]\.set\([^,]+\s*,\s*(?:encodeURIComponent\s*\()?\s*(?P<sig>[a-zA-Z0-9$]+)\(',
-             r'\b[cs]\s*&&\s*[adf]\.set\([^,]+\s*,\s*(?P<sig>[a-zA-Z0-9$]+)\(',
-             r'\b[a-zA-Z0-9]+\s*&&\s*[a-zA-Z0-9]+\.set\([^,]+\s*,\s*(?P<sig>[a-zA-Z0-9$]+)\(',
-             r'\bc\s*&&\s*a\.set\([^,]+\s*,\s*\([^)]*\)\s*\(\s*(?P<sig>[a-zA-Z0-9$]+)\(',
-             r'\bc\s*&&\s*[a-zA-Z0-9]+\.set\([^,]+\s*,\s*\([^)]*\)\s*\(\s*(?P<sig>[a-zA-Z0-9$]+)\(',
-             r'\bc\s*&&\s*[a-zA-Z0-9]+\.set\([^,]+\s*,\s*\([^)]*\)\s*\(\s*(?P<sig>[a-zA-Z0-9$]+)\('),
-            jscode, 'Initial JS player signature function name', group='sig')
-
-        jsi = JSInterpreter(jscode)
-        initial_function = jsi.extract_function(funcname)
-        return lambda s: initial_function([s])
-
-    def _parse_sig_swf(self, file_contents):
-        swfi = SWFInterpreter(file_contents)
-        TARGET_CLASSNAME = 'SignatureDecipher'
-        searched_class = swfi.extract_class(TARGET_CLASSNAME)
-        initial_function = swfi.extract_function(searched_class, 'decipher')
-        return lambda s: initial_function([s])
-
-    def _decrypt_signature(self, s, video_id, player_url, age_gate=False):
-        """Turn the encrypted s field into a working signature"""
-
-        if player_url is None:
-            raise ExtractorError('Cannot decrypt signature without player_url')
-
-        if player_url.startswith('//'):
-            player_url = 'https:' + player_url
-        elif not re.match(r'https?://', player_url):
-            player_url = compat_urlparse.urljoin(
-                'https://www.youtube.com', player_url)
-        try:
-            player_id = (player_url, self._signature_cache_id(s))
-            if player_id not in self._player_cache:
-                func = self._extract_signature_function(
-                    video_id, player_url, s
-                )
-                self._player_cache[player_id] = func
-            func = self._player_cache[player_id]
-            if self._downloader.params.get('youtube_print_sig_code'):
-                self._print_sig_code(func, s)
-            return func(s)
-        except Exception as e:
-            tb = traceback.format_exc()
-            raise ExtractorError(
-                'Signature extraction failed: ' + tb, cause=e)
-
-    def _get_subtitles(self, video_id, webpage):
-        try:
-            subs_doc = self._download_xml(
-                'https://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id,
-                video_id, note=False)
-        except ExtractorError as err:
-            self._downloader.report_warning('unable to download video subtitles: %s' % error_to_compat_str(err))
-            return {}
-
-        sub_lang_list = {}
-        for track in subs_doc.findall('track'):
-            lang = track.attrib['lang_code']
-            if lang in sub_lang_list:
-                continue
-            sub_formats = []
-            for ext in self._SUBTITLE_FORMATS:
-                params = compat_urllib_parse_urlencode({
-                    'lang': lang,
-                    'v': video_id,
-                    'fmt': ext,
-                    'name': track.attrib['name'].encode('utf-8'),
-                })
-                sub_formats.append({
-                    'url': 'https://www.youtube.com/api/timedtext?' + params,
-                    'ext': ext,
-                })
-            sub_lang_list[lang] = sub_formats
-        if not sub_lang_list:
-            self._downloader.report_warning('video doesn\'t have subtitles')
-            return {}
-        return sub_lang_list
-
-    def _get_ytplayer_config(self, video_id, webpage):
-        patterns = (
-            # User data may contain arbitrary character sequences that may affect
-            # JSON extraction with regex, e.g. when '};' is contained the second
-            # regex won't capture the whole JSON. Yet working around by trying more
-            # concrete regex first keeping in mind proper quoted string handling
-            # to be implemented in future that will replace this workaround (see
-            # https://github.com/ytdl-org/youtube-dl/issues/7468,
-            # https://github.com/ytdl-org/youtube-dl/pull/7599)
-            r';ytplayer\.config\s*=\s*({.+?});ytplayer',
-            r';ytplayer\.config\s*=\s*({.+?});',
-        )
-        config = self._search_regex(
-            patterns, webpage, 'ytplayer.config', default=None)
-        if config:
-            return self._parse_json(
-                uppercase_escape(config), video_id, fatal=False)
-
-    def _get_automatic_captions(self, video_id, webpage):
-        """We need the webpage for getting the captions url, pass it as an
-           argument to speed up the process."""
-        self.to_screen('%s: Looking for automatic captions' % video_id)
-        player_config = self._get_ytplayer_config(video_id, webpage)
-        err_msg = 'Couldn\'t find automatic captions for %s' % video_id
-        if not player_config:
-            self._downloader.report_warning(err_msg)
-            return {}
-        try:
-            args = player_config['args']
-            caption_url = args.get('ttsurl')
-            if caption_url:
-                timestamp = args['timestamp']
-                # We get the available subtitles
-                list_params = compat_urllib_parse_urlencode({
-                    'type': 'list',
-                    'tlangs': 1,
-                    'asrs': 1,
-                })
-                list_url = caption_url + '&' + list_params
-                caption_list = self._download_xml(list_url, video_id)
-                original_lang_node = caption_list.find('track')
-                if original_lang_node is None:
-                    self._downloader.report_warning('Video doesn\'t have automatic captions')
-                    return {}
-                original_lang = original_lang_node.attrib['lang_code']
-                caption_kind = original_lang_node.attrib.get('kind', '')
-
-                sub_lang_list = {}
-                for lang_node in caption_list.findall('target'):
-                    sub_lang = lang_node.attrib['lang_code']
-                    sub_formats = []
-                    for ext in self._SUBTITLE_FORMATS:
-                        params = compat_urllib_parse_urlencode({
-                            'lang': original_lang,
-                            'tlang': sub_lang,
-                            'fmt': ext,
-                            'ts': timestamp,
-                            'kind': caption_kind,
-                        })
-                        sub_formats.append({
-                            'url': caption_url + '&' + params,
-                            'ext': ext,
-                        })
-                    sub_lang_list[sub_lang] = sub_formats
-                return sub_lang_list
-
-            def make_captions(sub_url, sub_langs):
-                parsed_sub_url = compat_urllib_parse_urlparse(sub_url)
-                caption_qs = compat_parse_qs(parsed_sub_url.query)
-                captions = {}
-                for sub_lang in sub_langs:
-                    sub_formats = []
-                    for ext in self._SUBTITLE_FORMATS:
-                        caption_qs.update({
-                            'tlang': [sub_lang],
-                            'fmt': [ext],
-                        })
-                        sub_url = compat_urlparse.urlunparse(parsed_sub_url._replace(
-                            query=compat_urllib_parse_urlencode(caption_qs, True)))
-                        sub_formats.append({
-                            'url': sub_url,
-                            'ext': ext,
-                        })
-                    captions[sub_lang] = sub_formats
-                return captions
-
-            # New captions format as of 22.06.2017
-            player_response = args.get('player_response')
-            if player_response and isinstance(player_response, compat_str):
-                player_response = self._parse_json(
-                    player_response, video_id, fatal=False)
-                if player_response:
-                    renderer = player_response['captions']['playerCaptionsTracklistRenderer']
-                    base_url = renderer['captionTracks'][0]['baseUrl']
-                    sub_lang_list = []
-                    for lang in renderer['translationLanguages']:
-                        lang_code = lang.get('languageCode')
-                        if lang_code:
-                            sub_lang_list.append(lang_code)
-                    return make_captions(base_url, sub_lang_list)
-
-            # Some videos don't provide ttsurl but rather caption_tracks and
-            # caption_translation_languages (e.g. 20LmZk1hakA)
-            # Does not used anymore as of 22.06.2017
-            caption_tracks = args['caption_tracks']
-            caption_translation_languages = args['caption_translation_languages']
-            caption_url = compat_parse_qs(caption_tracks.split(',')[0])['u'][0]
-            sub_lang_list = []
-            for lang in caption_translation_languages.split(','):
-                lang_qs = compat_parse_qs(compat_urllib_parse_unquote_plus(lang))
-                sub_lang = lang_qs.get('lc', [None])[0]
-                if sub_lang:
-                    sub_lang_list.append(sub_lang)
-            return make_captions(caption_url, sub_lang_list)
-        # An extractor error can be raise by the download process if there are
-        # no automatic captions but there are subtitles
-        except (KeyError, IndexError, ExtractorError):
-            self._downloader.report_warning(err_msg)
-            return {}
-
-    def _mark_watched(self, video_id, video_info, player_response):
-        playback_url = url_or_none(try_get(
-            player_response,
-            lambda x: x['playbackTracking']['videostatsPlaybackUrl']['baseUrl']) or try_get(
-            video_info, lambda x: x['videostats_playback_base_url'][0]))
-        if not playback_url:
-            return
-        parsed_playback_url = compat_urlparse.urlparse(playback_url)
-        qs = compat_urlparse.parse_qs(parsed_playback_url.query)
-
-        # cpn generation algorithm is reverse engineered from base.js.
-        # In fact it works even with dummy cpn.
-        CPN_ALPHABET = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_'
-        cpn = ''.join((CPN_ALPHABET[random.randint(0, 256) & 63] for _ in range(0, 16)))
-
-        qs.update({
-            'ver': ['2'],
-            'cpn': [cpn],
-        })
-        playback_url = compat_urlparse.urlunparse(
-            parsed_playback_url._replace(query=compat_urllib_parse_urlencode(qs, True)))
-
-        self._download_webpage(
-            playback_url, video_id, 'Marking watched',
-            'Unable to mark watched', fatal=False)
-
-    @staticmethod
-    def _extract_urls(webpage):
-        # Embedded YouTube player
-        entries = [
-            unescapeHTML(mobj.group('url'))
-            for mobj in re.finditer(r'''(?x)
-            (?:
-                <iframe[^>]+?src=|
-                data-video-url=|
-                <embed[^>]+?src=|
-                embedSWF\(?:\s*|
-                <object[^>]+data=|
-                new\s+SWFObject\(
-            )
-            (["\'])
-                (?P<url>(?:https?:)?//(?:www\.)?youtube(?:-nocookie)?\.com/
-                (?:embed|v|p)/[0-9A-Za-z_-]{11}.*?)
-            \1''', webpage)]
-
-        # lazyYT YouTube embed
-        entries.extend(list(map(
-            unescapeHTML,
-            re.findall(r'class="lazyYT" data-youtube-id="([^"]+)"', webpage))))
-
-        # Wordpress "YouTube Video Importer" plugin
-        matches = re.findall(r'''(?x)<div[^>]+
-            class=(?P<q1>[\'"])[^\'"]*\byvii_single_video_player\b[^\'"]*(?P=q1)[^>]+
-            data-video_id=(?P<q2>[\'"])([^\'"]+)(?P=q2)''', webpage)
-        entries.extend(m[-1] for m in matches)
-
-        return entries
-
-    @staticmethod
-    def _extract_url(webpage):
-        urls = YoutubeIE._extract_urls(webpage)
-        return urls[0] if urls else None
-
-    @classmethod
-    def extract_id(cls, url):
-        mobj = re.match(cls._VALID_URL, url, re.VERBOSE)
-        if mobj is None:
-            raise ExtractorError('Invalid URL: %s' % url)
-        video_id = mobj.group(2)
-        return video_id
-
-    @staticmethod
-    def _extract_chapters(description, duration):
-        if not description:
-            return None
-        chapter_lines = re.findall(
-            r'(?:^|<br\s*/>)([^<]*<a[^>]+onclick=["\']yt\.www\.watch\.player\.seekTo[^>]+>(\d{1,2}:\d{1,2}(?::\d{1,2})?)</a>[^>]*)(?=$|<br\s*/>)',
-            description)
-        if not chapter_lines:
-            return None
-        chapters = []
-        for next_num, (chapter_line, time_point) in enumerate(
-                chapter_lines, start=1):
-            start_time = parse_duration(time_point)
-            if start_time is None:
-                continue
-            if start_time > duration:
-                break
-            end_time = (duration if next_num == len(chapter_lines)
-                        else parse_duration(chapter_lines[next_num][1]))
-            if end_time is None:
-                continue
-            if end_time > duration:
-                end_time = duration
-            if start_time > end_time:
-                break
-            chapter_title = re.sub(
-                r'<a[^>]+>[^<]+</a>', '', chapter_line).strip(' \t-')
-            chapter_title = re.sub(r'\s+', ' ', chapter_title)
-            chapters.append({
-                'start_time': start_time,
-                'end_time': end_time,
-                'title': chapter_title,
-            })
-        return chapters
-
-    def _real_extract(self, url):
-        url, smuggled_data = unsmuggle_url(url, {})
-
-        proto = (
-            'http' if self._downloader.params.get('prefer_insecure', False)
-            else 'https')
-
-        start_time = None
-        end_time = None
-        parsed_url = compat_urllib_parse_urlparse(url)
-        for component in [parsed_url.fragment, parsed_url.query]:
-            query = compat_parse_qs(component)
-            if start_time is None and 't' in query:
-                start_time = parse_duration(query['t'][0])
-            if start_time is None and 'start' in query:
-                start_time = parse_duration(query['start'][0])
-            if end_time is None and 'end' in query:
-                end_time = parse_duration(query['end'][0])
-
-        # Extract original video URL from URL with redirection, like age verification, using next_url parameter
-        mobj = re.search(self._NEXT_URL_RE, url)
-        if mobj:
-            url = proto + '://www.youtube.com/' + compat_urllib_parse_unquote(mobj.group(1)).lstrip('/')
-        video_id = self.extract_id(url)
-
-        # Get video webpage
-        url = proto + '://www.youtube.com/watch?v=%s&gl=US&hl=en&has_verified=1&bpctr=9999999999' % video_id
-        video_webpage = self._download_webpage(url, video_id)
-
-        # Attempt to extract SWF player URL
-        mobj = re.search(r'swfConfig.*?"(https?:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
-        if mobj is not None:
-            player_url = re.sub(r'\\(.)', r'\1', mobj.group(1))
-        else:
-            player_url = None
-
-        dash_mpds = []
-
-        def add_dash_mpd(video_info):
-            dash_mpd = video_info.get('dashmpd')
-            if dash_mpd and dash_mpd[0] not in dash_mpds:
-                dash_mpds.append(dash_mpd[0])
-
-        def add_dash_mpd_pr(pl_response):
-            dash_mpd = url_or_none(try_get(
-                pl_response, lambda x: x['streamingData']['dashManifestUrl'],
-                compat_str))
-            if dash_mpd and dash_mpd not in dash_mpds:
-                dash_mpds.append(dash_mpd)
-
-        is_live = None
-        view_count = None
-
-        def extract_view_count(v_info):
-            return int_or_none(try_get(v_info, lambda x: x['view_count'][0]))
-
-        def extract_token(v_info):
-            return dict_get(v_info, ('account_playback_token', 'accountPlaybackToken', 'token'))
-
-        def extract_player_response(player_response, video_id):
-            pl_response = str_or_none(player_response)
-            if not pl_response:
-                return
-            pl_response = self._parse_json(pl_response, video_id, fatal=False)
-            if isinstance(pl_response, dict):
-                add_dash_mpd_pr(pl_response)
-                return pl_response
-
-        player_response = {}
-
-        # Get video info
-        embed_webpage = None
-        if re.search(r'player-age-gate-content">', video_webpage) is not None:
-            age_gate = True
-            # We simulate the access to the video from www.youtube.com/v/{video_id}
-            # this can be viewed without login into Youtube
-            url = proto + '://www.youtube.com/embed/%s' % video_id
-            embed_webpage = self._download_webpage(url, video_id, 'Downloading embed webpage')
-            data = compat_urllib_parse_urlencode({
-                'video_id': video_id,
-                'eurl': 'https://youtube.googleapis.com/v/' + video_id,
-                'sts': self._search_regex(
-                    r'"sts"\s*:\s*(\d+)', embed_webpage, 'sts', default=''),
-            })
-            video_info_url = proto + '://www.youtube.com/get_video_info?' + data
-            video_info_webpage = self._download_webpage(
-                video_info_url, video_id,
-                note='Refetching age-gated info webpage',
-                errnote='unable to download video info webpage')
-            video_info = compat_parse_qs(video_info_webpage)
-            pl_response = video_info.get('player_response', [None])[0]
-            player_response = extract_player_response(pl_response, video_id)
-            add_dash_mpd(video_info)
-            view_count = extract_view_count(video_info)
-        else:
-            age_gate = False
-            video_info = None
-            sts = None
-            # Try looking directly into the video webpage
-            ytplayer_config = self._get_ytplayer_config(video_id, video_webpage)
-            if ytplayer_config:
-                args = ytplayer_config['args']
-                if args.get('url_encoded_fmt_stream_map') or args.get('hlsvp'):
-                    # Convert to the same format returned by compat_parse_qs
-                    video_info = dict((k, [v]) for k, v in args.items())
-                    add_dash_mpd(video_info)
-                # Rental video is not rented but preview is available (e.g.
-                # https://www.youtube.com/watch?v=yYr8q0y5Jfg,
-                # https://github.com/ytdl-org/youtube-dl/issues/10532)
-                if not video_info and args.get('ypc_vid'):
-                    return self.url_result(
-                        args['ypc_vid'], YoutubeIE.ie_key(), video_id=args['ypc_vid'])
-                if args.get('livestream') == '1' or args.get('live_playback') == 1:
-                    is_live = True
-                sts = ytplayer_config.get('sts')
-                if not player_response:
-                    player_response = extract_player_response(args.get('player_response'), video_id)
-            if not video_info or self._downloader.params.get('youtube_include_dash_manifest', True):
-                add_dash_mpd_pr(player_response)
-                # We also try looking in get_video_info since it may contain different dashmpd
-                # URL that points to a DASH manifest with possibly different itag set (some itags
-                # are missing from DASH manifest pointed by webpage's dashmpd, some - from DASH
-                # manifest pointed by get_video_info's dashmpd).
-                # The general idea is to take a union of itags of both DASH manifests (for example
-                # video with such 'manifest behavior' see https://github.com/ytdl-org/youtube-dl/issues/6093)
-                self.report_video_info_webpage_download(video_id)
-                for el in ('embedded', 'detailpage', 'vevo', ''):
-                    query = {
-                        'video_id': video_id,
-                        'ps': 'default',
-                        'eurl': '',
-                        'gl': 'US',
-                        'hl': 'en',
-                    }
-                    if el:
-                        query['el'] = el
-                    if sts:
-                        query['sts'] = sts
-                    video_info_webpage = self._download_webpage(
-                        '%s://www.youtube.com/get_video_info' % proto,
-                        video_id, note=False,
-                        errnote='unable to download video info webpage',
-                        fatal=False, query=query)
-                    if not video_info_webpage:
-                        continue
-                    get_video_info = compat_parse_qs(video_info_webpage)
-                    if not player_response:
-                        pl_response = get_video_info.get('player_response', [None])[0]
-                        player_response = extract_player_response(pl_response, video_id)
-                    add_dash_mpd(get_video_info)
-                    if view_count is None:
-                        view_count = extract_view_count(get_video_info)
-                    if not video_info:
-                        video_info = get_video_info
-                    get_token = extract_token(get_video_info)
-                    if get_token:
-                        # Different get_video_info requests may report different results, e.g.
-                        # some may report video unavailability, but some may serve it without
-                        # any complaint (see https://github.com/ytdl-org/youtube-dl/issues/7362,
-                        # the original webpage as well as el=info and el=embedded get_video_info
-                        # requests report video unavailability due to geo restriction while
-                        # el=detailpage succeeds and returns valid data). This is probably
-                        # due to YouTube measures against IP ranges of hosting providers.
-                        # Working around by preferring the first succeeded video_info containing
-                        # the token if no such video_info yet was found.
-                        token = extract_token(video_info)
-                        if not token:
-                            video_info = get_video_info
-                        break
-
-        def extract_unavailable_message():
-            messages = []
-            for tag, kind in (('h1', 'message'), ('div', 'submessage')):
-                msg = self._html_search_regex(
-                    r'(?s)<{tag}[^>]+id=["\']unavailable-{kind}["\'][^>]*>(.+?)</{tag}>'.format(tag=tag, kind=kind),
-                    video_webpage, 'unavailable %s' % kind, default=None)
-                if msg:
-                    messages.append(msg)
-            if messages:
-                return '\n'.join(messages)
-
-        if not video_info:
-            unavailable_message = extract_unavailable_message()
-            if not unavailable_message:
-                unavailable_message = 'Unable to extract video data'
-            raise ExtractorError(
-                'YouTube said: %s' % unavailable_message, expected=True, video_id=video_id)
-
-        video_details = try_get(
-            player_response, lambda x: x['videoDetails'], dict) or {}
-
-        video_title = video_info.get('title', [None])[0] or video_details.get('title')
-        if not video_title:
-            self._downloader.report_warning('Unable to extract video title')
-            video_title = '_'
-
-        description_original = video_description = get_element_by_id("eow-description", video_webpage)
-        if video_description:
-
-            def replace_url(m):
-                redir_url = compat_urlparse.urljoin(url, m.group(1))
-                parsed_redir_url = compat_urllib_parse_urlparse(redir_url)
-                if re.search(r'^(?:www\.)?(?:youtube(?:-nocookie)?\.com|youtu\.be)$', parsed_redir_url.netloc) and parsed_redir_url.path == '/redirect':
-                    qs = compat_parse_qs(parsed_redir_url.query)
-                    q = qs.get('q')
-                    if q and q[0]:
-                        return q[0]
-                return redir_url
-
-            description_original = video_description = re.sub(r'''(?x)
-                <a\s+
-                    (?:[a-zA-Z-]+="[^"]*"\s+)*?
-                    (?:title|href)="([^"]+)"\s+
-                    (?:[a-zA-Z-]+="[^"]*"\s+)*?
-                    class="[^"]*"[^>]*>
-                [^<]+\.{3}\s*
-                </a>
-            ''', replace_url, video_description)
-            video_description = clean_html(video_description)
-        else:
-            video_description = self._html_search_meta('description', video_webpage) or video_details.get('shortDescription')
-
-        if not smuggled_data.get('force_singlefeed', False):
-            if not self._downloader.params.get('noplaylist'):
-                multifeed_metadata_list = try_get(
-                    player_response,
-                    lambda x: x['multicamera']['playerLegacyMulticameraRenderer']['metadataList'],
-                    compat_str) or try_get(
-                    video_info, lambda x: x['multifeed_metadata_list'][0], compat_str)
-                if multifeed_metadata_list:
-                    entries = []
-                    feed_ids = []
-                    for feed in multifeed_metadata_list.split(','):
-                        # Unquote should take place before split on comma (,) since textual
-                        # fields may contain comma as well (see
-                        # https://github.com/ytdl-org/youtube-dl/issues/8536)
-                        feed_data = compat_parse_qs(compat_urllib_parse_unquote_plus(feed))
-                        entries.append({
-                            '_type': 'url_transparent',
-                            'ie_key': 'Youtube',
-                            'url': smuggle_url(
-                                '%s://www.youtube.com/watch?v=%s' % (proto, feed_data['id'][0]),
-                                {'force_singlefeed': True}),
-                            'title': '%s (%s)' % (video_title, feed_data['title'][0]),
-                        })
-                        feed_ids.append(feed_data['id'][0])
-                    self.to_screen(
-                        'Downloading multifeed video (%s) - add --no-playlist to just download video %s'
-                        % (', '.join(feed_ids), video_id))
-                    return self.playlist_result(entries, video_id, video_title, video_description)
-            else:
-                self.to_screen('Downloading just video %s because of --no-playlist' % video_id)
-
-        if view_count is None:
-            view_count = extract_view_count(video_info)
-        if view_count is None and video_details:
-            view_count = int_or_none(video_details.get('viewCount'))
-
-        if is_live is None:
-            is_live = bool_or_none(video_details.get('isLive'))
-
-        # Check for "rental" videos
-        if 'ypc_video_rental_bar_text' in video_info and 'author' not in video_info:
-            raise ExtractorError('"rental" videos not supported. See https://github.com/ytdl-org/youtube-dl/issues/359 for more information.', expected=True)
-
-        def _extract_filesize(media_url):
-            return int_or_none(self._search_regex(
-                r'\bclen[=/](\d+)', media_url, 'filesize', default=None))
-
-        streaming_formats = try_get(player_response, lambda x: x['streamingData']['formats'], list) or []
-        streaming_formats.extend(try_get(player_response, lambda x: x['streamingData']['adaptiveFormats'], list) or [])
-
-        if 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
-            self.report_rtmp_download()
-            formats = [{
-                'format_id': '_rtmp',
-                'protocol': 'rtmp',
-                'url': video_info['conn'][0],
-                'player_url': player_url,
-            }]
-        elif not is_live and (streaming_formats or len(video_info.get('url_encoded_fmt_stream_map', [''])[0]) >= 1 or len(video_info.get('adaptive_fmts', [''])[0]) >= 1):
-            encoded_url_map = video_info.get('url_encoded_fmt_stream_map', [''])[0] + ',' + video_info.get('adaptive_fmts', [''])[0]
-            if 'rtmpe%3Dyes' in encoded_url_map:
-                raise ExtractorError('rtmpe downloads are not supported, see https://github.com/ytdl-org/youtube-dl/issues/343 for more information.', expected=True)
-            formats = []
-            formats_spec = {}
-            fmt_list = video_info.get('fmt_list', [''])[0]
-            if fmt_list:
-                for fmt in fmt_list.split(','):
-                    spec = fmt.split('/')
-                    if len(spec) > 1:
-                        width_height = spec[1].split('x')
-                        if len(width_height) == 2:
-                            formats_spec[spec[0]] = {
-                                'resolution': spec[1],
-                                'width': int_or_none(width_height[0]),
-                                'height': int_or_none(width_height[1]),
-                            }
-            for fmt in streaming_formats:
-                itag = str_or_none(fmt.get('itag'))
-                if not itag:
-                    continue
-                quality = fmt.get('quality')
-                quality_label = fmt.get('qualityLabel') or quality
-                formats_spec[itag] = {
-                    'asr': int_or_none(fmt.get('audioSampleRate')),
-                    'filesize': int_or_none(fmt.get('contentLength')),
-                    'format_note': quality_label,
-                    'fps': int_or_none(fmt.get('fps')),
-                    'height': int_or_none(fmt.get('height')),
-                    # bitrate for itag 43 is always 2147483647
-                    'tbr': float_or_none(fmt.get('averageBitrate') or fmt.get('bitrate'), 1000) if itag != '43' else None,
-                    'width': int_or_none(fmt.get('width')),
-                }
-
-            for fmt in streaming_formats:
-                if fmt.get('drm_families'):
-                    continue
-                url = url_or_none(fmt.get('url'))
-
-                if not url:
-                    cipher = fmt.get('cipher')
-                    if not cipher:
-                        continue
-                    url_data = compat_parse_qs(cipher)
-                    url = url_or_none(try_get(url_data, lambda x: x['url'][0], compat_str))
-                    if not url:
-                        continue
-                else:
-                    cipher = None
-                    url_data = compat_parse_qs(compat_urllib_parse_urlparse(url).query)
-
-                stream_type = int_or_none(try_get(url_data, lambda x: x['stream_type'][0]))
-                # Unsupported FORMAT_STREAM_TYPE_OTF
-                if stream_type == 3:
-                    continue
-
-                format_id = fmt.get('itag') or url_data['itag'][0]
-                if not format_id:
-                    continue
-                format_id = compat_str(format_id)
-
-                if cipher:
-                    if 's' in url_data or self._downloader.params.get('youtube_include_dash_manifest', True):
-                        ASSETS_RE = r'"assets":.+?"js":\s*("[^"]+")'
-                        jsplayer_url_json = self._search_regex(
-                            ASSETS_RE,
-                            embed_webpage if age_gate else video_webpage,
-                            'JS player URL (1)', default=None)
-                        if not jsplayer_url_json and not age_gate:
-                            # We need the embed website after all
-                            if embed_webpage is None:
-                                embed_url = proto + '://www.youtube.com/embed/%s' % video_id
-                                embed_webpage = self._download_webpage(
-                                    embed_url, video_id, 'Downloading embed webpage')
-                            jsplayer_url_json = self._search_regex(
-                                ASSETS_RE, embed_webpage, 'JS player URL')
-
-                        player_url = json.loads(jsplayer_url_json)
-                        if player_url is None:
-                            player_url_json = self._search_regex(
-                                r'ytplayer\.config.*?"url"\s*:\s*("[^"]+")',
-                                video_webpage, 'age gate player URL')
-                            player_url = json.loads(player_url_json)
-
-                    if 'sig' in url_data:
-                        url += '&signature=' + url_data['sig'][0]
-                    elif 's' in url_data:
-                        encrypted_sig = url_data['s'][0]
-
-                        if self._downloader.params.get('verbose'):
-                            if player_url is None:
-                                player_version = 'unknown'
-                                player_desc = 'unknown'
-                            else:
-                                if player_url.endswith('swf'):
-                                    player_version = self._search_regex(
-                                        r'-(.+?)(?:/watch_as3)?\.swf$', player_url,
-                                        'flash player', fatal=False)
-                                    player_desc = 'flash player %s' % player_version
-                                else:
-                                    player_version = self._search_regex(
-                                        [r'html5player-([^/]+?)(?:/html5player(?:-new)?)?\.js',
-                                         r'(?:www|player(?:_ias)?)-([^/]+)(?:/[a-z]{2,3}_[A-Z]{2})?/base\.js'],
-                                        player_url,
-                                        'html5 player', fatal=False)
-                                    player_desc = 'html5 player %s' % player_version
-
-                            parts_sizes = self._signature_cache_id(encrypted_sig)
-                            self.to_screen('{%s} signature length %s, %s' %
-                                           (format_id, parts_sizes, player_desc))
-
-                        signature = self._decrypt_signature(
-                            encrypted_sig, video_id, player_url, age_gate)
-                        sp = try_get(url_data, lambda x: x['sp'][0], compat_str) or 'signature'
-                        url += '&%s=%s' % (sp, signature)
-                if 'ratebypass' not in url:
-                    url += '&ratebypass=yes'
-
-                dct = {
-                    'format_id': format_id,
-                    'url': url,
-                    'player_url': player_url,
-                }
-                if format_id in self._formats:
-                    dct.update(self._formats[format_id])
-                if format_id in formats_spec:
-                    dct.update(formats_spec[format_id])
-
-                # Some itags are not included in DASH manifest thus corresponding formats will
-                # lack metadata (see https://github.com/ytdl-org/youtube-dl/pull/5993).
-                # Trying to extract metadata from url_encoded_fmt_stream_map entry.
-                mobj = re.search(r'^(?P<width>\d+)[xX](?P<height>\d+)$', url_data.get('size', [''])[0])
-                width, height = (int(mobj.group('width')), int(mobj.group('height'))) if mobj else (None, None)
-
-                if width is None:
-                    width = int_or_none(fmt.get('width'))
-                if height is None:
-                    height = int_or_none(fmt.get('height'))
-
-                filesize = int_or_none(url_data.get(
-                    'clen', [None])[0]) or _extract_filesize(url)
-
-                quality = url_data.get('quality', [None])[0] or fmt.get('quality')
-                quality_label = url_data.get('quality_label', [None])[0] or fmt.get('qualityLabel')
-
-                tbr = (float_or_none(url_data.get('bitrate', [None])[0], 1000)
-                       or float_or_none(fmt.get('bitrate'), 1000)) if format_id != '43' else None
-                fps = int_or_none(url_data.get('fps', [None])[0]) or int_or_none(fmt.get('fps'))
-
-                more_fields = {
-                    'filesize': filesize,
-                    'tbr': tbr,
-                    'width': width,
-                    'height': height,
-                    'fps': fps,
-                    'format_note': quality_label or quality,
-                }
-                for key, value in more_fields.items():
-                    if value:
-                        dct[key] = value
-                type_ = url_data.get('type', [None])[0] or fmt.get('mimeType')
-                if type_:
-                    type_split = type_.split(';')
-                    kind_ext = type_split[0].split('/')
-                    if len(kind_ext) == 2:
-                        kind, _ = kind_ext
-                        dct['ext'] = mimetype2ext(type_split[0])
-                        if kind in ('audio', 'video'):
-                            codecs = None
-                            for mobj in re.finditer(
-                                    r'(?P<key>[a-zA-Z_-]+)=(?P<quote>["\']?)(?P<val>.+?)(?P=quote)(?:;|$)', type_):
-                                if mobj.group('key') == 'codecs':
-                                    codecs = mobj.group('val')
-                                    break
-                            if codecs:
-                                dct.update(parse_codecs(codecs))
-                if dct.get('acodec') == 'none' or dct.get('vcodec') == 'none':
-                    dct['downloader_options'] = {
-                        # Youtube throttles chunks >~10M
-                        'http_chunk_size': 10485760,
-                    }
-                formats.append(dct)
-        else:
-            manifest_url = (
-                url_or_none(try_get(
-                    player_response,
-                    lambda x: x['streamingData']['hlsManifestUrl'],
-                    compat_str))
-                or url_or_none(try_get(
-                    video_info, lambda x: x['hlsvp'][0], compat_str)))
-            if manifest_url:
-                formats = []
-                m3u8_formats = self._extract_m3u8_formats(
-                    manifest_url, video_id, 'mp4', fatal=False)
-                for a_format in m3u8_formats:
-                    itag = self._search_regex(
-                        r'/itag/(\d+)/', a_format['url'], 'itag', default=None)
-                    if itag:
-                        a_format['format_id'] = itag
-                        if itag in self._formats:
-                            dct = self._formats[itag].copy()
-                            dct.update(a_format)
-                            a_format = dct
-                    a_format['player_url'] = player_url
-                    # Accept-Encoding header causes failures in live streams on Youtube and Youtube Gaming
-                    a_format.setdefault('http_headers', {})['Youtubedl-no-compression'] = 'True'
-                    formats.append(a_format)
-            else:
-                error_message = extract_unavailable_message()
-                if not error_message:
-                    error_message = clean_html(try_get(
-                        player_response, lambda x: x['playabilityStatus']['reason'],
-                        compat_str))
-                if not error_message:
-                    error_message = clean_html(
-                        try_get(video_info, lambda x: x['reason'][0], compat_str))
-                if error_message:
-                    raise ExtractorError(error_message, expected=True)
-                raise ExtractorError('no conn, hlsvp, hlsManifestUrl or url_encoded_fmt_stream_map information found in video info')
-
-        # uploader
-        video_uploader = try_get(
-            video_info, lambda x: x['author'][0],
-            compat_str) or str_or_none(video_details.get('author'))
-        if video_uploader:
-            video_uploader = compat_urllib_parse_unquote_plus(video_uploader)
-        else:
-            self._downloader.report_warning('unable to extract uploader name')
-
-        # uploader_id
-        video_uploader_id = None
-        video_uploader_url = None
-        mobj = re.search(
-            r'<link itemprop="url" href="(?P<uploader_url>https?://www\.youtube\.com/(?:user|channel)/(?P<uploader_id>[^"]+))">',
-            video_webpage)
-        if mobj is not None:
-            video_uploader_id = mobj.group('uploader_id')
-            video_uploader_url = mobj.group('uploader_url')
-        else:
-            self._downloader.report_warning('unable to extract uploader nickname')
-
-        channel_id = (
-            str_or_none(video_details.get('channelId'))
-            or self._html_search_meta(
-                'channelId', video_webpage, 'channel id', default=None)
-            or self._search_regex(
-                r'data-channel-external-id=(["\'])(?P<id>(?:(?!\1).)+)\1',
-                video_webpage, 'channel id', default=None, group='id'))
-        channel_url = 'http://www.youtube.com/channel/%s' % channel_id if channel_id else None
-
-        # thumbnail image
-        # We try first to get a high quality image:
-        m_thumb = re.search(r'<span itemprop="thumbnail".*?href="(.*?)">',
-                            video_webpage, re.DOTALL)
-        if m_thumb is not None:
-            video_thumbnail = m_thumb.group(1)
-        elif 'thumbnail_url' not in video_info:
-            self._downloader.report_warning('unable to extract video thumbnail')
-            video_thumbnail = None
-        else:   # don't panic if we can't find it
-            video_thumbnail = compat_urllib_parse_unquote_plus(video_info['thumbnail_url'][0])
-
-        # upload date
-        upload_date = self._html_search_meta(
-            'datePublished', video_webpage, 'upload date', default=None)
-        if not upload_date:
-            upload_date = self._search_regex(
-                [r'(?s)id="eow-date.*?>(.*?)</span>',
-                 r'(?:id="watch-uploader-info".*?>.*?|["\']simpleText["\']\s*:\s*["\'])(?:Published|Uploaded|Streamed live|Started) on (.+?)[<"\']'],
-                video_webpage, 'upload date', default=None)
-        upload_date = unified_strdate(upload_date)
-
-        video_license = self._html_search_regex(
-            r'<h4[^>]+class="title"[^>]*>\s*License\s*</h4>\s*<ul[^>]*>\s*<li>(.+?)</li',
-            video_webpage, 'license', default=None)
-
-        m_music = re.search(
-            r'''(?x)
-                <h4[^>]+class="title"[^>]*>\s*Music\s*</h4>\s*
-                <ul[^>]*>\s*
-                <li>(?P<title>.+?)
-                by (?P<creator>.+?)
-                (?:
-                    \(.+?\)|
-                    <a[^>]*
-                        (?:
-                            \bhref=["\']/red[^>]*>|             # drop possible
-                            >\s*Listen ad-free with YouTube Red # YouTube Red ad
-                        )
-                    .*?
-                )?</li
-            ''',
-            video_webpage)
-        if m_music:
-            video_alt_title = remove_quotes(unescapeHTML(m_music.group('title')))
-            video_creator = clean_html(m_music.group('creator'))
-        else:
-            video_alt_title = video_creator = None
-
-        def extract_meta(field):
-            return self._html_search_regex(
-                r'<h4[^>]+class="title"[^>]*>\s*%s\s*</h4>\s*<ul[^>]*>\s*<li>(.+?)</li>\s*' % field,
-                video_webpage, field, default=None)
-
-        track = extract_meta('Song')
-        artist = extract_meta('Artist')
-        album = extract_meta('Album')
-
-        # Youtube Music Auto-generated description
-        release_date = release_year = None
-        if video_description:
-            mobj = re.search(r'(?s)Provided to YouTube by [^\n]+\n+(?P<track>[^·]+)·(?P<artist>[^\n]+)\n+(?P<album>[^\n]+)(?:.+?℗\s*(?P<release_year>\d{4})(?!\d))?(?:.+?Released on\s*:\s*(?P<release_date>\d{4}-\d{2}-\d{2}))?(.+?\nArtist\s*:\s*(?P<clean_artist>[^\n]+))?', video_description)
-            if mobj:
-                if not track:
-                    track = mobj.group('track').strip()
-                if not artist:
-                    artist = mobj.group('clean_artist') or ', '.join(a.strip() for a in mobj.group('artist').split('·'))
-                if not album:
-                    album = mobj.group('album'.strip())
-                release_year = mobj.group('release_year')
-                release_date = mobj.group('release_date')
-                if release_date:
-                    release_date = release_date.replace('-', '')
-                    if not release_year:
-                        release_year = int(release_date[:4])
-                if release_year:
-                    release_year = int(release_year)
-
-        m_episode = re.search(
-            r'<div[^>]+id="watch7-headline"[^>]*>\s*<span[^>]*>.*?>(?P<series>[^<]+)</a></b>\s*S(?P<season>\d+)\s*•\s*E(?P<episode>\d+)</span>',
-            video_webpage)
-        if m_episode:
-            series = unescapeHTML(m_episode.group('series'))
-            season_number = int(m_episode.group('season'))
-            episode_number = int(m_episode.group('episode'))
-        else:
-            series = season_number = episode_number = None
-
-        m_cat_container = self._search_regex(
-            r'(?s)<h4[^>]*>\s*Category\s*</h4>\s*<ul[^>]*>(.*?)</ul>',
-            video_webpage, 'categories', default=None)
-        if m_cat_container:
-            category = self._html_search_regex(
-                r'(?s)<a[^<]+>(.*?)</a>', m_cat_container, 'category',
-                default=None)
-            video_categories = None if category is None else [category]
-        else:
-            video_categories = None
-
-        video_tags = [
-            unescapeHTML(m.group('content'))
-            for m in re.finditer(self._meta_regex('og:video:tag'), video_webpage)]
-
-        def _extract_count(count_name):
-            return str_to_int(self._search_regex(
-                r'-%s-button[^>]+><span[^>]+class="yt-uix-button-content"[^>]*>([\d,]+)</span>'
-                % re.escape(count_name),
-                video_webpage, count_name, default=None))
-
-        like_count = _extract_count('like')
-        dislike_count = _extract_count('dislike')
-
-        if view_count is None:
-            view_count = str_to_int(self._search_regex(
-                r'<[^>]+class=["\']watch-view-count[^>]+>\s*([\d,\s]+)', video_webpage,
-                'view count', default=None))
-
-        average_rating = (
-            float_or_none(video_details.get('averageRating'))
-            or try_get(video_info, lambda x: float_or_none(x['avg_rating'][0])))
-
-        # subtitles
-        video_subtitles = self.extract_subtitles(video_id, video_webpage)
-        automatic_captions = self.extract_automatic_captions(video_id, video_webpage)
-
-        video_duration = try_get(
-            video_info, lambda x: int_or_none(x['length_seconds'][0]))
-        if not video_duration:
-            video_duration = int_or_none(video_details.get('lengthSeconds'))
-        if not video_duration:
-            video_duration = parse_duration(self._html_search_meta(
-                'duration', video_webpage, 'video duration'))
-
-        # annotations
-        video_annotations = None
-        if self._downloader.params.get('writeannotations', False):
-            xsrf_token = self._search_regex(
-                r'([\'"])XSRF_TOKEN\1\s*:\s*([\'"])(?P<xsrf_token>[A-Za-z0-9+/=]+)\2',
-                video_webpage, 'xsrf token', group='xsrf_token', fatal=False)
-            invideo_url = try_get(
-                player_response, lambda x: x['annotations'][0]['playerAnnotationsUrlsRenderer']['invideoUrl'], compat_str)
-            if xsrf_token and invideo_url:
-                xsrf_field_name = self._search_regex(
-                    r'([\'"])XSRF_FIELD_NAME\1\s*:\s*([\'"])(?P<xsrf_field_name>\w+)\2',
-                    video_webpage, 'xsrf field name',
-                    group='xsrf_field_name', default='session_token')
-                video_annotations = self._download_webpage(
-                    self._proto_relative_url(invideo_url),
-                    video_id, note='Downloading annotations',
-                    errnote='Unable to download video annotations', fatal=False,
-                    data=urlencode_postdata({xsrf_field_name: xsrf_token}))
-
-        chapters = self._extract_chapters(description_original, video_duration)
-
-        # Look for the DASH manifest
-        if self._downloader.params.get('youtube_include_dash_manifest', True):
-            dash_mpd_fatal = True
-            for mpd_url in dash_mpds:
-                dash_formats = {}
-                try:
-                    def decrypt_sig(mobj):
-                        s = mobj.group(1)
-                        dec_s = self._decrypt_signature(s, video_id, player_url, age_gate)
-                        return '/signature/%s' % dec_s
-
-                    mpd_url = re.sub(r'/s/([a-fA-F0-9\.]+)', decrypt_sig, mpd_url)
-
-                    for df in self._extract_mpd_formats(
-                            mpd_url, video_id, fatal=dash_mpd_fatal,
-                            formats_dict=self._formats):
-                        if not df.get('filesize'):
-                            df['filesize'] = _extract_filesize(df['url'])
-                        # Do not overwrite DASH format found in some previous DASH manifest
-                        if df['format_id'] not in dash_formats:
-                            dash_formats[df['format_id']] = df
-                        # Additional DASH manifests may end up in HTTP Error 403 therefore
-                        # allow them to fail without bug report message if we already have
-                        # some DASH manifest succeeded. This is temporary workaround to reduce
-                        # burst of bug reports until we figure out the reason and whether it
-                        # can be fixed at all.
-                        dash_mpd_fatal = False
-                except (ExtractorError, KeyError) as e:
-                    self.report_warning(
-                        'Skipping DASH manifest: %r' % e, video_id)
-                if dash_formats:
-                    # Remove the formats we found through non-DASH, they
-                    # contain less info and it can be wrong, because we use
-                    # fixed values (for example the resolution). See
-                    # https://github.com/ytdl-org/youtube-dl/issues/5774 for an
-                    # example.
-                    formats = [f for f in formats if f['format_id'] not in dash_formats.keys()]
-                    formats.extend(dash_formats.values())
-
-        # Check for malformed aspect ratio
-        stretched_m = re.search(
-            r'<meta\s+property="og:video:tag".*?content="yt:stretch=(?P<w>[0-9]+):(?P<h>[0-9]+)">',
-            video_webpage)
-        if stretched_m:
-            w = float(stretched_m.group('w'))
-            h = float(stretched_m.group('h'))
-            # yt:stretch may hold invalid ratio data (e.g. for Q39EVAstoRM ratio is 17:0).
-            # We will only process correct ratios.
-            if w > 0 and h > 0:
-                ratio = w / h
-                for f in formats:
-                    if f.get('vcodec') != 'none':
-                        f['stretched_ratio'] = ratio
-
-        if not formats:
-            token = extract_token(video_info)
-            if not token:
-                if 'reason' in video_info:
-                    if 'The uploader has not made this video available in your country.' in video_info['reason']:
-                        regions_allowed = self._html_search_meta(
-                            'regionsAllowed', video_webpage, default=None)
-                        countries = regions_allowed.split(',') if regions_allowed else None
-                        self.raise_geo_restricted(
-                            msg=video_info['reason'][0], countries=countries)
-                    reason = video_info['reason'][0]
-                    if 'Invalid parameters' in reason:
-                        unavailable_message = extract_unavailable_message()
-                        if unavailable_message:
-                            reason = unavailable_message
-                    raise ExtractorError(
-                        'YouTube said: %s' % reason,
-                        expected=True, video_id=video_id)
-                else:
-                    raise ExtractorError(
-                        '"token" parameter not in video info for unknown reason',
-                        video_id=video_id)
-
-        if not formats and (video_info.get('license_info') or try_get(player_response, lambda x: x['streamingData']['licenseInfos'])):
-            raise ExtractorError('This video is DRM protected.', expected=True)
-
-        self._sort_formats(formats)
-
-        self.mark_watched(video_id, video_info, player_response)
-
-        return {
-            'id': video_id,
-            'uploader': video_uploader,
-            'uploader_id': video_uploader_id,
-            'uploader_url': video_uploader_url,
-            'channel_id': channel_id,
-            'channel_url': channel_url,
-            'upload_date': upload_date,
-            'license': video_license,
-            'creator': video_creator or artist,
-            'title': video_title,
-            'alt_title': video_alt_title or track,
-            'thumbnail': video_thumbnail,
-            'description': video_description,
-            'categories': video_categories,
-            'tags': video_tags,
-            'subtitles': video_subtitles,
-            'automatic_captions': automatic_captions,
-            'duration': video_duration,
-            'age_limit': 18 if age_gate else 0,
-            'annotations': video_annotations,
-            'chapters': chapters,
-            'webpage_url': proto + '://www.youtube.com/watch?v=%s' % video_id,
-            'view_count': view_count,
-            'like_count': like_count,
-            'dislike_count': dislike_count,
-            'average_rating': average_rating,
-            'formats': formats,
-            'is_live': is_live,
-            'start_time': start_time,
-            'end_time': end_time,
-            'series': series,
-            'season_number': season_number,
-            'episode_number': episode_number,
-            'track': track,
-            'artist': artist,
-            'album': album,
-            'release_date': release_date,
-            'release_year': release_year,
-        }
-
-
-class YoutubePlaylistIE(YoutubePlaylistBaseInfoExtractor):
-    IE_DESC = 'YouTube.com playlists'
-    _VALID_URL = r"""(?x)(?:
-                        (?:https?://)?
-                        (?:\w+\.)?
-                        (?:
-                            (?:
-                                youtube\.com|
-                                invidio\.us
-                            )
-                            /
-                            (?:
-                               (?:course|view_play_list|my_playlists|artist|playlist|watch|embed/(?:videoseries|[0-9A-Za-z_-]{11}))
-                               \? (?:.*?[&;])*? (?:p|a|list)=
-                            |  p/
-                            )|
-                            youtu\.be/[0-9A-Za-z_-]{11}\?.*?\blist=
-                        )
-                        (
-                            (?:PL|LL|EC|UU|FL|RD|UL|TL|OLAK5uy_)?[0-9A-Za-z-_]{10,}
-                            # Top tracks, they can also include dots
-                            |(?:MC)[\w\.]*
-                        )
-                        .*
-                     |
-                        (%(playlist_id)s)
-                     )""" % {'playlist_id': YoutubeBaseInfoExtractor._PLAYLIST_ID_RE}
-    _TEMPLATE_URL = 'https://www.youtube.com/playlist?list=%s'
-    _VIDEO_RE_TPL = r'href="\s*/watch\?v=%s(?:&amp;(?:[^"]*?index=(?P<index>\d+))?(?:[^>]+>(?P<title>[^<]+))?)?'
-    _VIDEO_RE = _VIDEO_RE_TPL % r'(?P<id>[0-9A-Za-z_-]{11})'
-    IE_NAME = 'youtube:playlist'
-    _TESTS = [{
-        'url': 'https://www.youtube.com/playlist?list=PLwiyx1dc3P2JR9N8gQaQN_BCvlSlap7re',
-        'info_dict': {
-            'title': 'ytdl test PL',
-            'id': 'PLwiyx1dc3P2JR9N8gQaQN_BCvlSlap7re',
-        },
-        'playlist_count': 3,
-    }, {
-        'url': 'https://www.youtube.com/playlist?list=PLtPgu7CB4gbZDA7i_euNxn75ISqxwZPYx',
-        'info_dict': {
-            'id': 'PLtPgu7CB4gbZDA7i_euNxn75ISqxwZPYx',
-            'title': 'YDL_Empty_List',
-        },
-        'playlist_count': 0,
-        'skip': 'This playlist is private',
-    }, {
-        'note': 'Playlist with deleted videos (#651). As a bonus, the video #51 is also twice in this list.',
-        'url': 'https://www.youtube.com/playlist?list=PLwP_SiAcdui0KVebT0mU9Apz359a4ubsC',
-        'info_dict': {
-            'title': '29C3: Not my department',
-            'id': 'PLwP_SiAcdui0KVebT0mU9Apz359a4ubsC',
-            'uploader': 'Christiaan008',
-            'uploader_id': 'ChRiStIaAn008',
-        },
-        'playlist_count': 95,
-    }, {
-        'note': 'issue #673',
-        'url': 'PLBB231211A4F62143',
-        'info_dict': {
-            'title': '[OLD]Team Fortress 2 (Class-based LP)',
-            'id': 'PLBB231211A4F62143',
-            'uploader': 'Wickydoo',
-            'uploader_id': 'Wickydoo',
-        },
-        'playlist_mincount': 26,
-    }, {
-        'note': 'Large playlist',
-        'url': 'https://www.youtube.com/playlist?list=UUBABnxM4Ar9ten8Mdjj1j0Q',
-        'info_dict': {
-            'title': 'Uploads from Cauchemar',
-            'id': 'UUBABnxM4Ar9ten8Mdjj1j0Q',
-            'uploader': 'Cauchemar',
-            'uploader_id': 'Cauchemar89',
-        },
-        'playlist_mincount': 799,
-    }, {
-        'url': 'PLtPgu7CB4gbY9oDN3drwC3cMbJggS7dKl',
-        'info_dict': {
-            'title': 'YDL_safe_search',
-            'id': 'PLtPgu7CB4gbY9oDN3drwC3cMbJggS7dKl',
-        },
-        'playlist_count': 2,
-        'skip': 'This playlist is private',
-    }, {
-        'note': 'embedded',
-        'url': 'https://www.youtube.com/embed/videoseries?list=PL6IaIsEjSbf96XFRuNccS_RuEXwNdsoEu',
-        'playlist_count': 4,
-        'info_dict': {
-            'title': 'JODA15',
-            'id': 'PL6IaIsEjSbf96XFRuNccS_RuEXwNdsoEu',
-            'uploader': 'milan',
-            'uploader_id': 'UCEI1-PVPcYXjB73Hfelbmaw',
-        }
-    }, {
-        'url': 'http://www.youtube.com/embed/_xDOZElKyNU?list=PLsyOSbh5bs16vubvKePAQ1x3PhKavfBIl',
-        'playlist_mincount': 485,
-        'info_dict': {
-            'title': '2018 Chinese New Singles (11/6 updated)',
-            'id': 'PLsyOSbh5bs16vubvKePAQ1x3PhKavfBIl',
-            'uploader': 'LBK',
-            'uploader_id': 'sdragonfang',
-        }
-    }, {
-        'note': 'Embedded SWF player',
-        'url': 'https://www.youtube.com/p/YN5VISEtHet5D4NEvfTd0zcgFk84NqFZ?hl=en_US&fs=1&rel=0',
-        'playlist_count': 4,
-        'info_dict': {
-            'title': 'JODA7',
-            'id': 'YN5VISEtHet5D4NEvfTd0zcgFk84NqFZ',
-        },
-        'skip': 'This playlist does not exist',
-    }, {
-        'note': 'Buggy playlist: the webpage has a "Load more" button but it doesn\'t have more videos',
-        'url': 'https://www.youtube.com/playlist?list=UUXw-G3eDE9trcvY2sBMM_aA',
-        'info_dict': {
-            'title': 'Uploads from Interstellar Movie',
-            'id': 'UUXw-G3eDE9trcvY2sBMM_aA',
-            'uploader': 'Interstellar Movie',
-            'uploader_id': 'InterstellarMovie1',
-        },
-        'playlist_mincount': 21,
-    }, {
-        # Playlist URL that does not actually serve a playlist
-        'url': 'https://www.youtube.com/watch?v=FqZTN594JQw&list=PLMYEtVRpaqY00V9W81Cwmzp6N6vZqfUKD4',
-        'info_dict': {
-            'id': 'FqZTN594JQw',
-            'ext': 'webm',
-            'title': "Smiley's People 01 detective, Adventure Series, Action",
-            'uploader': 'STREEM',
-            'uploader_id': 'UCyPhqAZgwYWZfxElWVbVJng',
-            'uploader_url': r're:https?://(?:www\.)?youtube\.com/channel/UCyPhqAZgwYWZfxElWVbVJng',
-            'upload_date': '20150526',
-            'license': 'Standard YouTube License',
-            'description': 'md5:507cdcb5a49ac0da37a920ece610be80',
-            'categories': ['People & Blogs'],
-            'tags': list,
-            'view_count': int,
-            'like_count': int,
-            'dislike_count': int,
-        },
-        'params': {
-            'skip_download': True,
-        },
-        'skip': 'This video is not available.',
-        'add_ie': [YoutubeIE.ie_key()],
-    }, {
-        'url': 'https://youtu.be/yeWKywCrFtk?list=PL2qgrgXsNUG5ig9cat4ohreBjYLAPC0J5',
-        'info_dict': {
-            'id': 'yeWKywCrFtk',
-            'ext': 'mp4',
-            'title': 'Small Scale Baler and Braiding Rugs',
-            'uploader': 'Backus-Page House Museum',
-            'uploader_id': 'backuspagemuseum',
-            'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/backuspagemuseum',
-            'upload_date': '20161008',
-            'description': 'md5:800c0c78d5eb128500bffd4f0b4f2e8a',
-            'categories': ['Nonprofits & Activism'],
-            'tags': list,
-            'like_count': int,
-            'dislike_count': int,
-        },
-        'params': {
-            'noplaylist': True,
-            'skip_download': True,
-        },
-    }, {
-        # https://github.com/ytdl-org/youtube-dl/issues/21844
-        'url': 'https://www.youtube.com/playlist?list=PLzH6n4zXuckpfMu_4Ff8E7Z1behQks5ba',
-        'info_dict': {
-            'title': 'Data Analysis with Dr Mike Pound',
-            'id': 'PLzH6n4zXuckpfMu_4Ff8E7Z1behQks5ba',
-            'uploader_id': 'Computerphile',
-            'uploader': 'Computerphile',
-        },
-        'playlist_mincount': 11,
-    }, {
-        'url': 'https://youtu.be/uWyaPkt-VOI?list=PL9D9FC436B881BA21',
-        'only_matching': True,
-    }, {
-        'url': 'TLGGrESM50VT6acwMjAyMjAxNw',
-        'only_matching': True,
-    }, {
-        # music album playlist
-        'url': 'OLAK5uy_m4xAFdmMC5rX3Ji3g93pQe3hqLZw_9LhM',
-        'only_matching': True,
-    }, {
-        'url': 'https://invidio.us/playlist?list=PLDIoUOhQQPlXr63I_vwF9GD8sAKh77dWU',
-        'only_matching': True,
-    }]
-
-    def _real_initialize(self):
-        self._login()
-
-    def extract_videos_from_page(self, page):
-        ids_in_page = []
-        titles_in_page = []
-
-        for item in re.findall(
-                r'(<[^>]*\bdata-video-id\s*=\s*["\'][0-9A-Za-z_-]{11}[^>]+>)', page):
-            attrs = extract_attributes(item)
-            video_id = attrs['data-video-id']
-            video_title = unescapeHTML(attrs.get('data-title'))
-            if video_title:
-                video_title = video_title.strip()
-            ids_in_page.append(video_id)
-            titles_in_page.append(video_title)
-
-        # Fallback with old _VIDEO_RE
-        self.extract_videos_from_page_impl(
-            self._VIDEO_RE, page, ids_in_page, titles_in_page)
-
-        # Relaxed fallbacks
-        self.extract_videos_from_page_impl(
-            r'href="\s*/watch\?v\s*=\s*(?P<id>[0-9A-Za-z_-]{11})', page,
-            ids_in_page, titles_in_page)
-        self.extract_videos_from_page_impl(
-            r'data-video-ids\s*=\s*["\'](?P<id>[0-9A-Za-z_-]{11})', page,
-            ids_in_page, titles_in_page)
-
-        return zip(ids_in_page, titles_in_page)
-
-    def _extract_mix(self, playlist_id):
-        # The mixes are generated from a single video
-        # the id of the playlist is just 'RD' + video_id
-        ids = []
-        last_id = playlist_id[-11:]
-        for n in itertools.count(1):
-            url = 'https://youtube.com/watch?v=%s&list=%s' % (last_id, playlist_id)
-            webpage = self._download_webpage(
-                url, playlist_id, 'Downloading page {0} of Youtube mix'.format(n))
-            new_ids = orderedSet(re.findall(
-                r'''(?xs)data-video-username=".*?".*?
-                           href="/watch\?v=([0-9A-Za-z_-]{11})&amp;[^"]*?list=%s''' % re.escape(playlist_id),
-                webpage))
-            # Fetch new pages until all the videos are repeated, it seems that
-            # there are always 51 unique videos.
-            new_ids = [_id for _id in new_ids if _id not in ids]
-            if not new_ids:
-                break
-            ids.extend(new_ids)
-            last_id = ids[-1]
-
-        url_results = self._ids_to_results(ids)
-
-        search_title = lambda class_name: get_element_by_attribute('class', class_name, webpage)
-        title_span = (
-            search_title('playlist-title')
-            or search_title('title long-title')
-            or search_title('title'))
-        title = clean_html(title_span)
-
-        return self.playlist_result(url_results, playlist_id, title)
-
-    def _extract_playlist(self, playlist_id):
-        url = self._TEMPLATE_URL % playlist_id
-        page = self._download_webpage(url, playlist_id)
-
-        # the yt-alert-message now has tabindex attribute (see https://github.com/ytdl-org/youtube-dl/issues/11604)
-        for match in re.findall(r'<div class="yt-alert-message"[^>]*>([^<]+)</div>', page):
-            match = match.strip()
-            # Check if the playlist exists or is private
-            mobj = re.match(r'[^<]*(?:The|This) playlist (?P<reason>does not exist|is private)[^<]*', match)
-            if mobj:
-                reason = mobj.group('reason')
-                message = 'This playlist %s' % reason
-                if 'private' in reason:
-                    message += ', use --username or --netrc to access it'
-                message += '.'
-                raise ExtractorError(message, expected=True)
-            elif re.match(r'[^<]*Invalid parameters[^<]*', match):
-                raise ExtractorError(
-                    'Invalid parameters. Maybe URL is incorrect.',
-                    expected=True)
-            elif re.match(r'[^<]*Choose your language[^<]*', match):
-                continue
-            else:
-                self.report_warning('Youtube gives an alert message: ' + match)
-
-        playlist_title = self._html_search_regex(
-            r'(?s)<h1 class="pl-header-title[^"]*"[^>]*>\s*(.*?)\s*</h1>',
-            page, 'title', default=None)
-
-        _UPLOADER_BASE = r'class=["\']pl-header-details[^>]+>\s*<li>\s*<a[^>]+\bhref='
-        uploader = self._search_regex(
-            r'%s["\']/(?:user|channel)/[^>]+>([^<]+)' % _UPLOADER_BASE,
-            page, 'uploader', default=None)
-        mobj = re.search(
-            r'%s(["\'])(?P<path>/(?:user|channel)/(?P<uploader_id>.+?))\1' % _UPLOADER_BASE,
-            page)
-        if mobj:
-            uploader_id = mobj.group('uploader_id')
-            uploader_url = compat_urlparse.urljoin(url, mobj.group('path'))
-        else:
-            uploader_id = uploader_url = None
-
-        has_videos = True
-
-        if not playlist_title:
-            try:
-                # Some playlist URLs don't actually serve a playlist (e.g.
-                # https://www.youtube.com/watch?v=FqZTN594JQw&list=PLMYEtVRpaqY00V9W81Cwmzp6N6vZqfUKD4)
-                next(self._entries(page, playlist_id))
-            except StopIteration:
-                has_videos = False
-
-        playlist = self.playlist_result(
-            self._entries(page, playlist_id), playlist_id, playlist_title)
-        playlist.update({
-            'uploader': uploader,
-            'uploader_id': uploader_id,
-            'uploader_url': uploader_url,
-        })
-
-        return has_videos, playlist
-
-    def _check_download_just_video(self, url, playlist_id):
-        # Check if it's a video-specific URL
-        query_dict = compat_urlparse.parse_qs(compat_urlparse.urlparse(url).query)
-        video_id = query_dict.get('v', [None])[0] or self._search_regex(
-            r'(?:(?:^|//)youtu\.be/|youtube\.com/embed/(?!videoseries))([0-9A-Za-z_-]{11})', url,
-            'video id', default=None)
-        if video_id:
-            if self._downloader.params.get('noplaylist'):
-                self.to_screen('Downloading just video %s because of --no-playlist' % video_id)
-                return video_id, self.url_result(video_id, 'Youtube', video_id=video_id)
-            else:
-                self.to_screen('Downloading playlist %s - add --no-playlist to just download video %s' % (playlist_id, video_id))
-                return video_id, None
-        return None, None
-
-    def _real_extract(self, url):
-        # Extract playlist id
-        mobj = re.match(self._VALID_URL, url)
-        if mobj is None:
-            raise ExtractorError('Invalid URL: %s' % url)
-        playlist_id = mobj.group(1) or mobj.group(2)
-
-        video_id, video = self._check_download_just_video(url, playlist_id)
-        if video:
-            return video
-
-        if playlist_id.startswith(('RD', 'UL', 'PU')):
-            # Mixes require a custom extraction process
-            return self._extract_mix(playlist_id)
-
-        has_videos, playlist = self._extract_playlist(playlist_id)
-        if has_videos or not video_id:
-            return playlist
-
-        # Some playlist URLs don't actually serve a playlist (see
-        # https://github.com/ytdl-org/youtube-dl/issues/10537).
-        # Fallback to plain video extraction if there is a video id
-        # along with playlist id.
-        return self.url_result(video_id, 'Youtube', video_id=video_id)
-
-
-class YoutubeChannelIE(YoutubePlaylistBaseInfoExtractor):
-    IE_DESC = 'YouTube.com channels'
-    _VALID_URL = r'https?://(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com|(?:www\.)?invidio\.us)/channel/(?P<id>[0-9A-Za-z_-]+)'
-    _TEMPLATE_URL = 'https://www.youtube.com/channel/%s/videos'
-    _VIDEO_RE = r'(?:title="(?P<title>[^"]+)"[^>]+)?href="/watch\?v=(?P<id>[0-9A-Za-z_-]+)&?'
-    IE_NAME = 'youtube:channel'
-    _TESTS = [{
-        'note': 'paginated channel',
-        'url': 'https://www.youtube.com/channel/UCKfVa3S1e4PHvxWcwyMMg8w',
-        'playlist_mincount': 91,
-        'info_dict': {
-            'id': 'UUKfVa3S1e4PHvxWcwyMMg8w',
-            'title': 'Uploads from lex will',
-            'uploader': 'lex will',
-            'uploader_id': 'UCKfVa3S1e4PHvxWcwyMMg8w',
-        }
-    }, {
-        'note': 'Age restricted channel',
-        # from https://www.youtube.com/user/DeusExOfficial
-        'url': 'https://www.youtube.com/channel/UCs0ifCMCm1icqRbqhUINa0w',
-        'playlist_mincount': 64,
-        'info_dict': {
-            'id': 'UUs0ifCMCm1icqRbqhUINa0w',
-            'title': 'Uploads from Deus Ex',
-            'uploader': 'Deus Ex',
-            'uploader_id': 'DeusExOfficial',
-        },
-    }, {
-        'url': 'https://invidio.us/channel/UC23qupoDRn9YOAVzeoxjOQA',
-        'only_matching': True,
-    }]
-
-    @classmethod
-    def suitable(cls, url):
-        return (False if YoutubePlaylistsIE.suitable(url) or YoutubeLiveIE.suitable(url)
-                else super(YoutubeChannelIE, cls).suitable(url))
-
-    def _build_template_url(self, url, channel_id):
-        return self._TEMPLATE_URL % channel_id
-
-    def _real_extract(self, url):
-        channel_id = self._match_id(url)
-
-        url = self._build_template_url(url, channel_id)
-
-        # Channel by page listing is restricted to 35 pages of 30 items, i.e. 1050 videos total (see #5778)
-        # Workaround by extracting as a playlist if managed to obtain channel playlist URL
-        # otherwise fallback on channel by page extraction
-        channel_page = self._download_webpage(
-            url + '?view=57', channel_id,
-            'Downloading channel page', fatal=False)
-        if channel_page is False:
-            channel_playlist_id = False
-        else:
-            channel_playlist_id = self._html_search_meta(
-                'channelId', channel_page, 'channel id', default=None)
-            if not channel_playlist_id:
-                channel_url = self._html_search_meta(
-                    ('al:ios:url', 'twitter:app:url:iphone', 'twitter:app:url:ipad'),
-                    channel_page, 'channel url', default=None)
-                if channel_url:
-                    channel_playlist_id = self._search_regex(
-                        r'vnd\.youtube://user/([0-9A-Za-z_-]+)',
-                        channel_url, 'channel id', default=None)
-        if channel_playlist_id and channel_playlist_id.startswith('UC'):
-            playlist_id = 'UU' + channel_playlist_id[2:]
-            return self.url_result(
-                compat_urlparse.urljoin(url, '/playlist?list=%s' % playlist_id), 'YoutubePlaylist')
-
-        channel_page = self._download_webpage(url, channel_id, 'Downloading page #1')
-        autogenerated = re.search(r'''(?x)
-                class="[^"]*?(?:
-                    channel-header-autogenerated-label|
-                    yt-channel-title-autogenerated
-                )[^"]*"''', channel_page) is not None
-
-        if autogenerated:
-            # The videos are contained in a single page
-            # the ajax pages can't be used, they are empty
-            entries = [
-                self.url_result(
-                    video_id, 'Youtube', video_id=video_id,
-                    video_title=video_title)
-                for video_id, video_title in self.extract_videos_from_page(channel_page)]
-            return self.playlist_result(entries, channel_id)
-
-        try:
-            next(self._entries(channel_page, channel_id))
-        except StopIteration:
-            alert_message = self._html_search_regex(
-                r'(?s)<div[^>]+class=(["\']).*?\byt-alert-message\b.*?\1[^>]*>(?P<alert>[^<]+)</div>',
-                channel_page, 'alert', default=None, group='alert')
-            if alert_message:
-                raise ExtractorError('Youtube said: %s' % alert_message, expected=True)
-
-        return self.playlist_result(self._entries(channel_page, channel_id), channel_id)
-
-
-class YoutubeUserIE(YoutubeChannelIE):
-    IE_DESC = 'YouTube.com user videos (URL or "ytuser" keyword)'
-    _VALID_URL = r'(?:(?:https?://(?:\w+\.)?youtube\.com/(?:(?P<user>user|c)/)?(?!(?:attribution_link|watch|results|shared)(?:$|[^a-z_A-Z0-9-])))|ytuser:)(?!feed/)(?P<id>[A-Za-z0-9_-]+)'
-    _TEMPLATE_URL = 'https://www.youtube.com/%s/%s/videos'
-    IE_NAME = 'youtube:user'
-
-    _TESTS = [{
-        'url': 'https://www.youtube.com/user/TheLinuxFoundation',
-        'playlist_mincount': 320,
-        'info_dict': {
-            'id': 'UUfX55Sx5hEFjoC3cNs6mCUQ',
-            'title': 'Uploads from The Linux Foundation',
-            'uploader': 'The Linux Foundation',
-            'uploader_id': 'TheLinuxFoundation',
-        }
-    }, {
-        # Only available via https://www.youtube.com/c/12minuteathlete/videos
-        # but not https://www.youtube.com/user/12minuteathlete/videos
-        'url': 'https://www.youtube.com/c/12minuteathlete/videos',
-        'playlist_mincount': 249,
-        'info_dict': {
-            'id': 'UUVjM-zV6_opMDx7WYxnjZiQ',
-            'title': 'Uploads from 12 Minute Athlete',
-            'uploader': '12 Minute Athlete',
-            'uploader_id': 'the12minuteathlete',
-        }
-    }, {
-        'url': 'ytuser:phihag',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.youtube.com/c/gametrailers',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.youtube.com/gametrailers',
-        'only_matching': True,
-    }, {
-        # This channel is not available, geo restricted to JP
-        'url': 'https://www.youtube.com/user/kananishinoSMEJ/videos',
-        'only_matching': True,
-    }]
-
-    @classmethod
-    def suitable(cls, url):
-        # Don't return True if the url can be extracted with other youtube
-        # extractor, the regex would is too permissive and it would match.
-        other_yt_ies = iter(klass for (name, klass) in globals().items() if name.startswith('Youtube') and name.endswith('IE') and klass is not cls)
-        if any(ie.suitable(url) for ie in other_yt_ies):
-            return False
-        else:
-            return super(YoutubeUserIE, cls).suitable(url)
-
-    def _build_template_url(self, url, channel_id):
-        mobj = re.match(self._VALID_URL, url)
-        return self._TEMPLATE_URL % (mobj.group('user') or 'user', mobj.group('id'))
-
-
-class YoutubeLiveIE(YoutubeBaseInfoExtractor):
-    IE_DESC = 'YouTube.com live streams'
-    _VALID_URL = r'(?P<base_url>https?://(?:\w+\.)?youtube\.com/(?:(?:user|channel|c)/)?(?P<id>[^/]+))/live'
-    IE_NAME = 'youtube:live'
-
-    _TESTS = [{
-        'url': 'https://www.youtube.com/user/TheYoungTurks/live',
-        'info_dict': {
-            'id': 'a48o2S1cPoo',
-            'ext': 'mp4',
-            'title': 'The Young Turks - Live Main Show',
-            'uploader': 'The Young Turks',
-            'uploader_id': 'TheYoungTurks',
-            'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/TheYoungTurks',
-            'upload_date': '20150715',
-            'license': 'Standard YouTube License',
-            'description': 'md5:438179573adcdff3c97ebb1ee632b891',
-            'categories': ['News & Politics'],
-            'tags': ['Cenk Uygur (TV Program Creator)', 'The Young Turks (Award-Winning Work)', 'Talk Show (TV Genre)'],
-            'like_count': int,
-            'dislike_count': int,
-        },
-        'params': {
-            'skip_download': True,
-        },
-    }, {
-        'url': 'https://www.youtube.com/channel/UC1yBKRuGpC1tSM73A0ZjYjQ/live',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.youtube.com/c/CommanderVideoHq/live',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.youtube.com/TheYoungTurks/live',
-        'only_matching': True,
-    }]
-
-    def _real_extract(self, url):
-        mobj = re.match(self._VALID_URL, url)
-        channel_id = mobj.group('id')
-        base_url = mobj.group('base_url')
-        webpage = self._download_webpage(url, channel_id, fatal=False)
-        if webpage:
-            page_type = self._og_search_property(
-                'type', webpage, 'page type', default='')
-            video_id = self._html_search_meta(
-                'videoId', webpage, 'video id', default=None)
-            if page_type.startswith('video') and video_id and re.match(
-                    r'^[0-9A-Za-z_-]{11}$', video_id):
-                return self.url_result(video_id, YoutubeIE.ie_key())
-        return self.url_result(base_url)
-
-
-class YoutubePlaylistsIE(YoutubePlaylistsBaseInfoExtractor):
-    IE_DESC = 'YouTube.com user/channel playlists'
-    _VALID_URL = r'https?://(?:\w+\.)?youtube\.com/(?:user|channel)/(?P<id>[^/]+)/playlists'
-    IE_NAME = 'youtube:playlists'
-
-    _TESTS = [{
-        'url': 'https://www.youtube.com/user/ThirstForScience/playlists',
-        'playlist_mincount': 4,
-        'info_dict': {
-            'id': 'ThirstForScience',
-            'title': 'ThirstForScience',
-        },
-    }, {
-        # with "Load more" button
-        'url': 'https://www.youtube.com/user/igorkle1/playlists?view=1&sort=dd',
-        'playlist_mincount': 70,
-        'info_dict': {
-            'id': 'igorkle1',
-            'title': 'Игорь Клейнер',
-        },
-    }, {
-        'url': 'https://www.youtube.com/channel/UCiU1dHvZObB2iP6xkJ__Icw/playlists',
-        'playlist_mincount': 17,
-        'info_dict': {
-            'id': 'UCiU1dHvZObB2iP6xkJ__Icw',
-            'title': 'Chem Player',
-        },
-        'skip': 'Blocked',
-    }]
-
-
-class YoutubeSearchBaseInfoExtractor(YoutubePlaylistBaseInfoExtractor):
-    _VIDEO_RE = r'href="\s*/watch\?v=(?P<id>[0-9A-Za-z_-]{11})(?:[^"]*"[^>]+\btitle="(?P<title>[^"]+))?'
-
-
-class YoutubeSearchIE(SearchInfoExtractor, YoutubeSearchBaseInfoExtractor):
-    IE_DESC = 'YouTube.com searches'
-    # there doesn't appear to be a real limit, for example if you search for
-    # 'python' you get more than 8.000.000 results
-    _MAX_RESULTS = float('inf')
-    IE_NAME = 'youtube:search'
-    _SEARCH_KEY = 'ytsearch'
-    _EXTRA_QUERY_ARGS = {}
-    _TESTS = []
-
-    def _get_n_results(self, query, n):
-        """Get a specified number of results for a query"""
-
-        videos = []
-        limit = n
-
-        url_query = {
-            'search_query': query.encode('utf-8'),
-        }
-        url_query.update(self._EXTRA_QUERY_ARGS)
-        result_url = 'https://www.youtube.com/results?' + compat_urllib_parse_urlencode(url_query)
-
-        for pagenum in itertools.count(1):
-            data = self._download_json(
-                result_url, video_id='query "%s"' % query,
-                note='Downloading page %s' % pagenum,
-                errnote='Unable to download API page',
-                query={'spf': 'navigate'})
-            html_content = data[1]['body']['content']
-
-            if 'class="search-message' in html_content:
-                raise ExtractorError(
-                    '[youtube] No video results', expected=True)
-
-            new_videos = list(self._process_page(html_content))
-            videos += new_videos
-            if not new_videos or len(videos) > limit:
-                break
-            next_link = self._html_search_regex(
-                r'href="(/results\?[^"]*\bsp=[^"]+)"[^>]*>\s*<span[^>]+class="[^"]*\byt-uix-button-content\b[^"]*"[^>]*>Next',
-                html_content, 'next link', default=None)
-            if next_link is None:
-                break
-            result_url = compat_urlparse.urljoin('https://www.youtube.com/', next_link)
-
-        if len(videos) > n:
-            videos = videos[:n]
-        return self.playlist_result(videos, query)
-
-
-class YoutubeSearchDateIE(YoutubeSearchIE):
-    IE_NAME = YoutubeSearchIE.IE_NAME + ':date'
-    _SEARCH_KEY = 'ytsearchdate'
-    IE_DESC = 'YouTube.com searches, newest videos first'
-    _EXTRA_QUERY_ARGS = {'search_sort': 'video_date_uploaded'}
-
-
-class YoutubeSearchURLIE(YoutubeSearchBaseInfoExtractor):
-    IE_DESC = 'YouTube.com search URLs'
-    IE_NAME = 'youtube:search_url'
-    _VALID_URL = r'https?://(?:www\.)?youtube\.com/results\?(.*?&)?(?:search_query|q)=(?P<query>[^&]+)(?:[&]|$)'
-    _TESTS = [{
-        'url': 'https://www.youtube.com/results?baz=bar&search_query=youtube-dl+test+video&filters=video&lclk=video',
-        'playlist_mincount': 5,
-        'info_dict': {
-            'title': 'youtube-dl test video',
-        }
-    }, {
-        'url': 'https://www.youtube.com/results?q=test&sp=EgQIBBgB',
-        'only_matching': True,
-    }]
-
-    def _real_extract(self, url):
-        mobj = re.match(self._VALID_URL, url)
-        query = compat_urllib_parse_unquote_plus(mobj.group('query'))
-        webpage = self._download_webpage(url, query)
-        return self.playlist_result(self._process_page(webpage), playlist_title=query)
-
-
-class YoutubeShowIE(YoutubePlaylistsBaseInfoExtractor):
-    IE_DESC = 'YouTube.com (multi-season) shows'
-    _VALID_URL = r'https?://(?:www\.)?youtube\.com/show/(?P<id>[^?#]*)'
-    IE_NAME = 'youtube:show'
-    _TESTS = [{
-        'url': 'https://www.youtube.com/show/airdisasters',
-        'playlist_mincount': 5,
-        'info_dict': {
-            'id': 'airdisasters',
-            'title': 'Air Disasters',
-        }
-    }]
-
-    def _real_extract(self, url):
-        playlist_id = self._match_id(url)
-        return super(YoutubeShowIE, self)._real_extract(
-            'https://www.youtube.com/show/%s/playlists' % playlist_id)
-
-
-class YoutubeFeedsInfoExtractor(YoutubeBaseInfoExtractor):
-    """
-    Base class for feed extractors
-    Subclasses must define the _FEED_NAME and _PLAYLIST_TITLE properties.
-    """
-    _LOGIN_REQUIRED = True
-
-    @property
-    def IE_NAME(self):
-        return 'youtube:%s' % self._FEED_NAME
-
-    def _real_initialize(self):
-        self._login()
-
-    def _entries(self, page):
-        # The extraction process is the same as for playlists, but the regex
-        # for the video ids doesn't contain an index
-        ids = []
-        more_widget_html = content_html = page
-        for page_num in itertools.count(1):
-            matches = re.findall(r'href="\s*/watch\?v=([0-9A-Za-z_-]{11})', content_html)
-
-            # 'recommended' feed has infinite 'load more' and each new portion spins
-            # the same videos in (sometimes) slightly different order, so we'll check
-            # for unicity and break when portion has no new videos
-            new_ids = list(filter(lambda video_id: video_id not in ids, orderedSet(matches)))
-            if not new_ids:
-                break
-
-            ids.extend(new_ids)
-
-            for entry in self._ids_to_results(new_ids):
-                yield entry
-
-            mobj = re.search(r'data-uix-load-more-href="/?(?P<more>[^"]+)"', more_widget_html)
-            if not mobj:
-                break
-
-            more = self._download_json(
-                'https://youtube.com/%s' % mobj.group('more'), self._PLAYLIST_TITLE,
-                'Downloading page #%s' % page_num,
-                transform_source=uppercase_escape)
-            content_html = more['content_html']
-            more_widget_html = more['load_more_widget_html']
-
-    def _real_extract(self, url):
-        page = self._download_webpage(
-            'https://www.youtube.com/feed/%s' % self._FEED_NAME,
-            self._PLAYLIST_TITLE)
-        return self.playlist_result(
-            self._entries(page), playlist_title=self._PLAYLIST_TITLE)
-
-
-class YoutubeWatchLaterIE(YoutubePlaylistIE):
-    IE_NAME = 'youtube:watchlater'
-    IE_DESC = 'Youtube watch later list, ":ytwatchlater" for short (requires authentication)'
-    _VALID_URL = r'https?://(?:www\.)?youtube\.com/(?:feed/watch_later|(?:playlist|watch)\?(?:.+&)?list=WL)|:ytwatchlater'
-
-    _TESTS = [{
-        'url': 'https://www.youtube.com/playlist?list=WL',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.youtube.com/watch?v=bCNU9TrbiRk&index=1&list=WL',
-        'only_matching': True,
-    }]
-
-    def _real_extract(self, url):
-        _, video = self._check_download_just_video(url, 'WL')
-        if video:
-            return video
-        _, playlist = self._extract_playlist('WL')
-        return playlist
-
-
-class YoutubeFavouritesIE(YoutubeBaseInfoExtractor):
-    IE_NAME = 'youtube:favorites'
-    IE_DESC = 'YouTube.com favourite videos, ":ytfav" for short (requires authentication)'
-    _VALID_URL = r'https?://(?:www\.)?youtube\.com/my_favorites|:ytfav(?:ou?rites)?'
-    _LOGIN_REQUIRED = True
-
-    def _real_extract(self, url):
-        webpage = self._download_webpage('https://www.youtube.com/my_favorites', 'Youtube Favourites videos')
-        playlist_id = self._search_regex(r'list=(.+?)["&]', webpage, 'favourites playlist id')
-        return self.url_result(playlist_id, 'YoutubePlaylist')
-
-
-class YoutubeRecommendedIE(YoutubeFeedsInfoExtractor):
-    IE_DESC = 'YouTube.com recommended videos, ":ytrec" for short (requires authentication)'
-    _VALID_URL = r'https?://(?:www\.)?youtube\.com/feed/recommended|:ytrec(?:ommended)?'
-    _FEED_NAME = 'recommended'
-    _PLAYLIST_TITLE = 'Youtube Recommended videos'
-
-
-class YoutubeSubscriptionsIE(YoutubeFeedsInfoExtractor):
-    IE_DESC = 'YouTube.com subscriptions feed, "ytsubs" keyword (requires authentication)'
-    _VALID_URL = r'https?://(?:www\.)?youtube\.com/feed/subscriptions|:ytsubs(?:criptions)?'
-    _FEED_NAME = 'subscriptions'
-    _PLAYLIST_TITLE = 'Youtube Subscriptions'
-
-
-class YoutubeHistoryIE(YoutubeFeedsInfoExtractor):
-    IE_DESC = 'Youtube watch history, ":ythistory" for short (requires authentication)'
-    _VALID_URL = r'https?://(?:www\.)?youtube\.com/feed/history|:ythistory'
-    _FEED_NAME = 'history'
-    _PLAYLIST_TITLE = 'Youtube History'
-
-
-class YoutubeTruncatedURLIE(InfoExtractor):
-    IE_NAME = 'youtube:truncated_url'
-    IE_DESC = False  # Do not list
-    _VALID_URL = r'''(?x)
-        (?:https?://)?
-        (?:\w+\.)?[yY][oO][uU][tT][uU][bB][eE](?:-nocookie)?\.com/
-        (?:watch\?(?:
-            feature=[a-z_]+|
-            annotation_id=annotation_[^&]+|
-            x-yt-cl=[0-9]+|
-            hl=[^&]*|
-            t=[0-9]+
-        )?
-        |
-            attribution_link\?a=[^&]+
-        )
-        $
-    '''
-
-    _TESTS = [{
-        'url': 'https://www.youtube.com/watch?annotation_id=annotation_3951667041',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.youtube.com/watch?',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.youtube.com/watch?x-yt-cl=84503534',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.youtube.com/watch?feature=foo',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.youtube.com/watch?hl=en-GB',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.youtube.com/watch?t=2372',
-        'only_matching': True,
-    }]
-
-    def _real_extract(self, url):
-        raise ExtractorError(
-            'Did you forget to quote the URL? Remember that & is a meta '
-            'character in most shells, so you want to put the URL in quotes, '
-            'like  youtube-dl '
-            '"https://www.youtube.com/watch?feature=foo&v=BaW_jenozKc" '
-            ' or simply  youtube-dl BaW_jenozKc  .',
-            expected=True)
-
-
-class YoutubeTruncatedIDIE(InfoExtractor):
-    IE_NAME = 'youtube:truncated_id'
-    IE_DESC = False  # Do not list
-    _VALID_URL = r'https?://(?:www\.)?youtube\.com/watch\?v=(?P<id>[0-9A-Za-z_-]{1,10})$'
-
-    _TESTS = [{
-        'url': 'https://www.youtube.com/watch?v=N_708QY7Ob',
-        'only_matching': True,
-    }]
-
-    def _real_extract(self, url):
-        video_id = self._match_id(url)
-        raise ExtractorError(
-            'Incomplete YouTube ID %s. URL %s looks truncated.' % (video_id, url),
-            expected=True)