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

[FFmpeg]

#1493: Transcoding MOV file from Rhozet Carbon Server creates video with double
duration
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             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            |
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Comment (by mjs973):

 Replying to [comment:4 mjs973]:
 > How many video frames are coded if you suppress the audio?
 > ffmpeg -i infile.mov -an out.mp4

 My guess is that the two most likely reasons for the behavior you describe
 is:

 1) the audio stream is longer than you think

 2) ffmpeg has internally miscalculated the length of the video stream

 If you want to narrow down the issue, you should run the requested
 experiment.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1493#comment:7>
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