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LibMedia: Demux videos with FFmpeg

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This gives us access to container types other than Matroska, the
biggest one being MP4.
This commit is contained in:
Luke Wilde 2025-03-10 14:54:02 +00:00 • committed by Alexander Kalenik
commit b789ba5e5f
Notes: github-actions[bot] 2025-03-13 18:34:55 +00:00
12 changed files with 358 additions and 29 deletions
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7
Libraries/LibMedia/Containers/Matroska/MatroskaDemuxer.cpp
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@ -49,7 +49,7 @@ DecoderErrorOr<Vector<Track>> MatroskaDemuxer::get_tracks_for_type(TrackType typ
switch (type) {
case TrackType::Video:
if (auto video_track = track_entry.video_track(); video_track.has_value())
track.set_video_data({ TRY(duration()), video_track->pixel_width, video_track->pixel_height });
track.set_video_data({ TRY(duration(track)), video_track->pixel_width, video_track->pixel_height });
break;
default:
break;
@ -148,10 +148,11 @@ DecoderErrorOr<Sample> MatroskaDemuxer::get_next_sample_for_track(Track track)
status.frame_index = 0;
}
auto cicp = TRY(m_reader.track_for_track_number(track.identifier()))->video_track()->color_format.to_cicp();
return Sample(status.block->timestamp(), status.block->frame(status.frame_index++), VideoSampleData(cicp));
auto sample_data = DECODER_TRY_ALLOC(ByteBuffer::copy(status.block->frame(status.frame_index++)));
return Sample(status.block->timestamp(), move(sample_data), VideoSampleData(cicp));
}
DecoderErrorOr<AK::Duration> MatroskaDemuxer::duration()
DecoderErrorOr<AK::Duration> MatroskaDemuxer::duration(Track)
{
auto duration = TRY(m_reader.segment_information()).duration();
return duration.value_or(AK::Duration::zero());