[FFmpeg-trac] #7476(undetermined:new): Invalid pts and duration generated for mp4 when converting from webm

[FFmpeg]

#7476: Invalid pts and duration generated for mp4 when converting from webm
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             Reporter:  jyavenard    |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
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Comment (by cehoyos):

 Replying to [comment:2 Gyan]:

 > Use
 >
 >     `ffmpeg -i MozilleTest -vsync vfr -c:v libx264 test.mp4`
 >
 > to preserve original timestamps with no frame duplication.

 This can produce an invalid mp4 file:
 91360ce61d00bb20429fb41857abebf50a5c6b1d

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Ticket URL: <https://trac.ffmpeg.org/ticket/7476#comment:6>
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