[FFmpeg-trac] #3499(avformat:open): Error transcoding AVID H264 file with seek (-ss) option

FFmpeg trac at avcodec.org
Wed Mar 26 22:34:09 CET 2014

#3499: Error transcoding AVID H264 file with seek (-ss) option
             Reporter:  chq.contact  |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  mxf h264     |               Blocked By:
  regression                         |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |

Comment (by reimar):

 No problem, broken/wrong extensions are normal, which is why FFmpeg
 generally ignores them.
 I wonder if a more reliable method would be to make
 avformat_find_stream_info always replace extradata if it finds some
 alternative data in SPS/PPS.
 Or alternatively mark the extradata as auto-generated and do it only in
 that case.
 Unfortunately any solution seems like it might fail for some special case.
 Moving the generate function would have the advantage of avoiding the code
 duplication between mov and MXF, but it might cause unnecessary probing...

Ticket URL: <https://trac.ffmpeg.org/ticket/3499#comment:4>
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