v1: There was an issue with teletext where resolution is set just once at decoder init (teletext resolution is fixed/hard coded), so it is somewhat fragile: when a demuxer context update occurs, it is lost/overriden by avcodec_parameters_to_context(sti->avctx, st->codecpar) in read_frame_internal. They could have been other scenario besides teletext, I don't know.
v2: So now at estimate_timings_from_pts, with one or more seeking involved (seeking is detected by the mpegts demuxer and set last_vn=-1, so pmt is forced/updated and results in demuxer context update), it is required to preserve the info in codecpar at first. Thanks to Michael for reporting the issue. Nicolas Gaullier (1): avformat/demux: Fix accurate probing of durations in mpegts/ps libavformat/demux.c | 36 ++-- tests/ref/fate/concat-demuxer-simple2-lavf-ts | 170 +++++++++--------- tests/ref/fate/ts-opus-demux | 4 +- 3 files changed, 100 insertions(+), 110 deletions(-) -- 2.30.2 _______________________________________________ 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".
