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# GNU MediaGoblin -- federated, autonomous media hosting
# Copyright (C) 2013 MediaGoblin contributors. See AUTHORS.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import tempfile
import os
from contextlib import contextmanager
import imghdr
#os.environ['GST_DEBUG'] = '4,python:4'
import pytest
pytest.importorskip("gi.repository.Gst")
import gi
gi.require_version('Gst', '1.0')
from gi.repository import Gst
Gst.init(None)
from mediagoblin.media_types.video.transcoders import (capture_thumb,
VideoTranscoder)
from mediagoblin.media_types.video.util import ACCEPTED_RESOLUTIONS
from mediagoblin.media_types.tools import discover
@contextmanager
def create_data(suffix=None, make_audio=False):
video = tempfile.NamedTemporaryFile()
src = Gst.ElementFactory.make('videotestsrc', None)
src.set_property('num-buffers', 10)
videorate = Gst.ElementFactory.make('videorate', None)
enc = Gst.ElementFactory.make('theoraenc', None)
mux = Gst.ElementFactory.make('oggmux', None)
dst = Gst.ElementFactory.make('filesink', None)
dst.set_property('location', video.name)
pipeline = Gst.Pipeline()
pipeline.add(src)
pipeline.add(videorate)
pipeline.add(enc)
pipeline.add(mux)
pipeline.add(dst)
src.link(videorate)
videorate.link(enc)
enc.link(mux)
mux.link(dst)
if make_audio:
audio_src = Gst.ElementFactory.make('audiotestsrc', None)
audio_src.set_property('num-buffers', 10)
audiorate = Gst.ElementFactory.make('audiorate', None)
audio_enc = Gst.ElementFactory.make('vorbisenc', None)
pipeline.add(audio_src)
pipeline.add(audio_enc)
pipeline.add(audiorate)
audio_src.link(audiorate)
audiorate.link(audio_enc)
audio_enc.link(mux)
pipeline.set_state(Gst.State.PLAYING)
state = pipeline.get_state(3 * Gst.SECOND)
assert state[0] == Gst.StateChangeReturn.SUCCESS
bus = pipeline.get_bus()
message = bus.timed_pop_filtered(
3 * Gst.SECOND,
Gst.MessageType.ERROR | Gst.MessageType.EOS)
pipeline.set_state(Gst.State.NULL)
if suffix:
result = tempfile.NamedTemporaryFile(suffix=suffix)
else:
result = tempfile.NamedTemporaryFile()
yield (video.name, result.name)
#TODO: this should be skipped if video plugin is not enabled
def test_thumbnails():
'''
Test thumbnails generation.
1. Create a video (+audio) from gst's videotestsrc
2. Capture thumbnail
3. Everything should get removed because of temp files usage
'''
#data create_data() as (video_name, thumbnail_name):
test_formats = [('.png', 'png'), ('.jpg', 'jpeg'), ('.gif', 'gif')]
for suffix, format in test_formats:
with create_data(suffix) as (video_name, thumbnail_name):
capture_thumb(video_name, thumbnail_name, width=40)
# check result file format
assert imghdr.what(thumbnail_name) == format
# TODO: check height and width
# FIXME: it doesn't work with small width, say, 10px. This should be
# fixed somehow
suffix, format = test_formats[0]
with create_data(suffix, True) as (video_name, thumbnail_name):
capture_thumb(video_name, thumbnail_name, width=40)
assert imghdr.what(thumbnail_name) == format
with create_data(suffix, True) as (video_name, thumbnail_name):
capture_thumb(video_name, thumbnail_name, width=10) # smaller width
assert imghdr.what(thumbnail_name) == format
with create_data(suffix, True) as (video_name, thumbnail_name):
capture_thumb(video_name, thumbnail_name, width=100) # bigger width
assert imghdr.what(thumbnail_name) == format
def test_transcoder():
# test without audio
with create_data() as (video_name, result_name):
transcoder = VideoTranscoder()
transcoder.transcode(
video_name, result_name,
vp8_quality=8,
vp8_threads=0, # autodetect
vorbis_quality=0.3,
dimensions=(640, 640))
assert len(discover(result_name).get_video_streams()) == 1
# test with audio
with create_data(make_audio=True) as (video_name, result_name):
transcoder = VideoTranscoder()
transcoder.transcode(
video_name, result_name,
vp8_quality=8,
vp8_threads=0, # autodetect
vorbis_quality=0.3,
dimensions=(640, 640))
assert len(discover(result_name).get_video_streams()) == 1
assert len(discover(result_name).get_audio_streams()) == 1
def test_accepted_resolutions():
accepted_resolutions = {
'144p': (256, 144),
'240p': (352, 240),
'360p': (480, 360),
'480p': (858, 480),
'720p': (1280, 720),
'1080p': (1920, 1080),
'webm': (640, 640),
}
assert accepted_resolutions == ACCEPTED_RESOLUTIONS
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