[FFmpeg-trac] #1493(undetermined:open): Transcoding MOV file from Rhozet Carbon Server creates video with double duration

FFmpeg trac at avcodec.org
Fri Jul 6 16:24:39 CEST 2012


#1493: Transcoding MOV file from Rhozet Carbon Server creates video with double
duration
-------------------------------------+-------------------------------------
             Reporter:  kbreeman     |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:
              Version:  git-master   |  undetermined
             Keywords:  mov          |               Resolution:
  regression                         |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by mjs973):

 Replying to [comment:8 kbreeman]:
 > Using "ffmpeg -i infile.mov -an out.mp4" results in the same number of
 frames and the same video duration.

 That result rules out a too-long audio stream. Seems like this file
 triggers a real bug with the internal calculation of video stream length.

 Until there is a fix, the only workaround I can think of is for you to
 tell ffmpeg to stop transcoding after a specific number of frames:

 ffmpeg -i infile.mov -vframes 6360 out.mp4

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1493#comment:9>
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