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Diffstat (limited to 'mediagoblin/tests/test_video.py')
| -rw-r--r-- | mediagoblin/tests/test_video.py | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/mediagoblin/tests/test_video.py b/mediagoblin/tests/test_video.py new file mode 100644 index 00000000..79244515 --- /dev/null +++ b/mediagoblin/tests/test_video.py @@ -0,0 +1,132 @@ +# 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.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 |