ons 2022-12-07 klockan 17:31 +0800 skrev Zhao Zhili: > From: Zhao Zhili <zhiliz...@tencent.com> > > Use input PTS as DTS has multiple problems: > 1. If there is no reordering, it's better to just use the output > PTS as DTS, since encoder may change the timestamp value (do it > on purpose or rounding error). > > 2. If there is reordering, input PTS should be shift a few frames > as DTS to satisfy the requirement of PTS >= DTS. I can't find a > reliable way to determine how many frames to be shift. For example, > we don't known if the encoder use hierarchical B frames. The > max_num_reorder_frames can be get from VUI, but VUI is optional. > > 3. Encoder dropping frames makes the case worse. Android has an > BITRATE_MODE_CBR_FD option to allow it explicitly.
Don't we already have code to parse this stuff from h.264 streams? /Tomas _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
