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VIDEO: Make the video pts sync easier to understand

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This commit is contained in:
Torbjörn Andersson 2018-06-17 15:24:15 +02:00 committed by Thierry Crozat
parent b672a694b9
commit ac40828ed2
1 changed files with 8 additions and 3 deletions
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11
video/mpegps_decoder.cpp
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@ -486,11 +486,16 @@ bool MPEGPSDecoder::MPEGVideoTrack::sendPacket(Common::SeekableReadStream *packe
if (foundFrame) {
_curFrame++;
// If there is a presentation timestamp, use that for sync. Almost all
// packets with a presentation timestamp will have a found frame, so
// it is probably not worth the trouble worrying about when they don't.
if (pts != 0xFFFFFFFF) {
Audio::Timestamp ptsTimestamp = Audio::Timestamp(pts / 90, 27000000);
framePeriod = ptsTimestamp.frameDiff(_nextFrameStartTime);
_nextFrameStartTime = Audio::Timestamp(pts / 90, 27000000);
} else {
_nextFrameStartTime = _nextFrameStartTime.addFrames(framePeriod);
}
_nextFrameStartTime = _nextFrameStartTime.addFrames(framePeriod);
}
#endif