[FFmpeg-trac] #6714(avformat:open): MOV file with svq3 video fails to decode if edit list parsing is enabled

FFmpeg trac at avcodec.org
Tue Oct 24 02:38:13 EEST 2017


#6714: MOV file with svq3 video fails to decode if edit list parsing is enabled
-------------------------------------+-------------------------------------
             Reporter:  jamrial      |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  mov edts     |               Blocked By:
  regression                         |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by isasi):

 The file has an edit-list that specifies to play from the 1.3s. offset,
 while it has only 1s. worth of samples.

 Edit list:
 Entry[0].SegmentDuration        4294967046
 Entry[0].MediaTime      20800
 Entry[0].MediaRateInteger       1
 Entry[0].MediaRateFraction      0

 While total duration in mdhd itself is 16000 only
 mdhd:
 Timescale       19200
 Duration        16000

 So, the edit list parsing code is doing the correct thing by not producing
 any frames. Please investigate why such an edit list has been introduced
 in the file.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6714#comment:2>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker


More information about the FFmpeg-trac mailing list