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# coding: utf-8
from __future__ import unicode_literals
import os
import subprocess
import struct
import re
import base64
try:
import mutagen
_has_mutagen = True
except ImportError:
_has_mutagen = False
from .ffmpeg import FFmpegPostProcessor
from ..utils import (
check_executable,
encodeArgument,
encodeFilename,
error_to_compat_str,
PostProcessingError,
prepend_extension,
process_communicate_or_kill,
replace_extension,
shell_quote,
)
class EmbedThumbnailPPError(PostProcessingError):
pass
class EmbedThumbnailPP(FFmpegPostProcessor):
def __init__(self, downloader=None, already_have_thumbnail=False):
super(EmbedThumbnailPP, self).__init__(downloader)
self._already_have_thumbnail = already_have_thumbnail
def run(self, info):
filename = info['filepath']
temp_filename = prepend_extension(filename, 'temp')
if not info.get('thumbnails'):
self.to_screen('There aren\'t any thumbnails to embed')
return [], info
thumbnail_filename = info['thumbnails'][-1]['filename']
if not os.path.exists(encodeFilename(thumbnail_filename)):
self.report_warning('Skipping embedding the thumbnail because the file is missing.')
return [], info
def is_webp(path):
with open(encodeFilename(path), 'rb') as f:
b = f.read(12)
return b[0:4] == b'RIFF' and b[8:] == b'WEBP'
# Correct extension for WebP file with wrong extension (see #25687, #25717)
_, thumbnail_ext = os.path.splitext(thumbnail_filename)
if thumbnail_ext:
thumbnail_ext = thumbnail_ext[1:].lower()
if thumbnail_ext != 'webp' and is_webp(thumbnail_filename):
self.to_screen('Correcting extension to webp and escaping path for thumbnail "%s"' % thumbnail_filename)
thumbnail_webp_filename = replace_extension(thumbnail_filename, 'webp')
os.rename(encodeFilename(thumbnail_filename), encodeFilename(thumbnail_webp_filename))
thumbnail_filename = thumbnail_webp_filename
thumbnail_ext = 'webp'
# Convert unsupported thumbnail formats to JPEG (see #25687, #25717)
if thumbnail_ext not in ['jpg', 'png']:
# NB: % is supposed to be escaped with %% but this does not work
# for input files so working around with standard substitution
escaped_thumbnail_filename = thumbnail_filename.replace('%', '#')
os.rename(encodeFilename(thumbnail_filename), encodeFilename(escaped_thumbnail_filename))
escaped_thumbnail_jpg_filename = replace_extension(escaped_thumbnail_filename, 'jpg')
self.to_screen('Converting thumbnail "%s" to JPEG' % escaped_thumbnail_filename)
self.run_ffmpeg(escaped_thumbnail_filename, escaped_thumbnail_jpg_filename, ['-bsf:v', 'mjpeg2jpeg'])
os.remove(encodeFilename(escaped_thumbnail_filename))
thumbnail_jpg_filename = replace_extension(thumbnail_filename, 'jpg')
# Rename back to unescaped for further processing
os.rename(encodeFilename(escaped_thumbnail_jpg_filename), encodeFilename(thumbnail_jpg_filename))
thumbnail_filename = thumbnail_jpg_filename
thumbnail_ext = 'jpg'
success = True
if info['ext'] == 'mp3':
options = [
'-c', 'copy', '-map', '0:0', '-map', '1:0', '-id3v2_version', '3',
'-metadata:s:v', 'title="Album cover"', '-metadata:s:v', 'comment="Cover (front)"']
self.to_screen('Adding thumbnail to "%s"' % filename)
self.run_ffmpeg_multiple_files([filename, thumbnail_filename], temp_filename, options)
elif info['ext'] in ['mkv', 'mka']:
options = ['-c', 'copy', '-map', '0', '-dn']
mimetype = 'image/%s' % ('png' if thumbnail_ext == 'png' else 'jpeg')
old_stream, new_stream = self.get_stream_number(
filename, ('tags', 'mimetype'), mimetype)
if old_stream is not None:
options.extend(['-map', '-0:%d' % old_stream])
new_stream -= 1
options.extend([
'-attach', thumbnail_filename,
'-metadata:s:%d' % new_stream, 'mimetype=%s' % mimetype,
'-metadata:s:%d' % new_stream, 'filename=cover.%s' % thumbnail_ext])
self.to_screen('Adding thumbnail to "%s"' % filename)
self.run_ffmpeg(filename, temp_filename, options)
elif info['ext'] in ['m4a', 'mp4', 'mov']:
try:
options = ['-c', 'copy', '-map', '0', '-dn', '-map', '1']
old_stream, new_stream = self.get_stream_number(
filename, ('disposition', 'attached_pic'), 1)
if old_stream is not None:
options.extend(['-map', '-0:%d' % old_stream])
new_stream -= 1
options.extend(['-disposition:%s' % new_stream, 'attached_pic'])
self.to_screen('Adding thumbnail to "%s"' % filename)
self.run_ffmpeg_multiple_files([filename, thumbnail_filename], temp_filename, options)
except PostProcessingError as err:
self.report_warning('unable to embed using ffprobe & ffmpeg; %s' % error_to_compat_str(err))
if not check_executable('AtomicParsley', ['-v']):
raise EmbedThumbnailPPError('AtomicParsley was not found. Please install.')
cmd = [encodeFilename('AtomicParsley', True),
encodeFilename(filename, True),
encodeArgument('--artwork'),
encodeFilename(thumbnail_filename, True),
encodeArgument('-o'),
encodeFilename(temp_filename, True)]
cmd += [encodeArgument(o) for o in self._configuration_args(exe='AtomicParsley')]
self.to_screen('Adding thumbnail to "%s"' % filename)
self.write_debug('AtomicParsley command line: %s' % shell_quote(cmd))
p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
stdout, stderr = process_communicate_or_kill(p)
if p.returncode != 0:
msg = stderr.decode('utf-8', 'replace').strip()
raise EmbedThumbnailPPError(msg)
# for formats that don't support thumbnails (like 3gp) AtomicParsley
# won't create to the temporary file
if b'No changes' in stdout:
self.report_warning('The file format doesn\'t support embedding a thumbnail')
success = False
elif info['ext'] in ['ogg', 'opus']:
if not _has_mutagen:
raise EmbedThumbnailPPError('module mutagen was not found. Please install')
size_regex = r',\s*(?P<w>\d+)x(?P<h>\d+)\s*[,\[]'
size_result = self.run_ffmpeg(thumbnail_filename, thumbnail_filename, ['-hide_banner'])
mobj = re.search(size_regex, size_result)
width, height = int(mobj.group('w')), int(mobj.group('h'))
mimetype = ('image/%s' % ('png' if thumbnail_ext == 'png' else 'jpeg')).encode('ascii')
# https://xiph.org/flac/format.html#metadata_block_picture
data = bytearray()
data += struct.pack('>II', 3, len(mimetype))
data += mimetype
data += struct.pack('>IIIIII', 0, width, height, 8, 0, os.stat(thumbnail_filename).st_size) # 32 if png else 24
fin = open(thumbnail_filename, "rb")
data += fin.read()
fin.close()
temp_filename = filename
f = mutagen.File(temp_filename)
f.tags['METADATA_BLOCK_PICTURE'] = base64.b64encode(data).decode('ascii')
f.save()
else:
raise EmbedThumbnailPPError('Supported filetypes for thumbnail embedding are: mp3, mkv/mka, ogg/opus, m4a/mp4/mov')
if success and temp_filename != filename:
os.remove(encodeFilename(filename))
os.rename(encodeFilename(temp_filename), encodeFilename(filename))
files_to_delete = [] if self._already_have_thumbnail else [thumbnail_filename]
return files_to_delete, info
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