[FFmpeg-trac] #7366(avformat:new): mxf_set_audio_pts creates incorrect PTS for compressed audio

FFmpeg trac at avcodec.org
Mon Aug 20 23:14:56 EEST 2018


#7366: mxf_set_audio_pts creates incorrect PTS for compressed audio
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             Reporter:  go4shoe     |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avformat
              Version:  git-master  |               Resolution:
             Keywords:  mxf         |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by go4shoe):

 Thanks for reproducing the issue in FFmpeg 3.4.

 I am using ffmpeg.exe as test bed to show the timestamp issue in the
 FFmpeg's MXF parser.
 The timestamp issue still exists - see console output of my comment 5.

 But it looks like that in FFmpeg git head - other parts of FFmpeg make up
 for the faulty timestamps coming out of the FFmpeg's MXF reader.

 So that now a transcode may create a file with A/V sync.

 But for a player like VLC that uses libavformat/mxfdec.c the issue is
 likely unchanged.

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Ticket URL: <https://trac.ffmpeg.org/ticket/7366#comment:15>
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