[FFmpeg-trac] #8420(avformat:closed): MP4 duration is not correct

[FFmpeg]

#8420: MP4 duration is not correct
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             Reporter:  manuelyuan    |                    Owner:
                 Type:  defect        |                   Status:  closed
             Priority:  normal        |                Component:  avformat
              Version:  git-master    |               Resolution:  invalid
             Keywords:  mov duration  |               Blocked By:
             Blocking:                |  Reproduced by developer:  0
Analyzed by developer:  0             |
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Changes (by cehoyos):

 * status:  new => closed
 * resolution:   => invalid


Comment:

 You cannot use `-vsync 0` reliably with mp4/mov output as our muxer only
 supports cfr.
 The following works fine here:
 {{{
 ffmpeg -i mp4_duration_is_incorrect.mp4 -max_muxing_queue_size 400 out.mp4
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/8420#comment:2>
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