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LibVideo: Calculate Block timestamps for Matroska according to spec

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Tracks have a timestamp scale value that should be present which scales
each block's timestamp offset to allow video to be synced with audio.
They should also contain a CodecDelay element and may also contain a
TrackOffset that offsets the block timestamps.
This commit is contained in:
Zaggy1024 2022-11-12 13:09:07 -06:00 • committed by Andreas Kling
parent ceb7632862
commit a58bf7c3d1
4 changed files with 49 additions and 12 deletions
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2
Userland/Utilities/matroska.cpp
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@ -36,6 +36,8 @@ ErrorOr<int> serenity_main(Main::Arguments)
outln("\tTrack has TrackType {}", static_cast<u8>(track_entry.track_type()));
outln("\tTrack has Language \"{}\"", track_entry.language().characters());
outln("\tTrack has CodecID \"{}\"", track_entry.codec_id().characters());
outln("\tTrack has TrackTimestampScale {}", track_entry.timestamp_scale());
outln("\tTrack has CodecDelay {}", track_entry.codec_delay());
if (track_entry.track_type() == Video::Matroska::TrackEntry::TrackType::Video) {
auto const video_track = track_entry.video_track().value();