[FFmpeg-trac] #7927(undetermined:closed): Video copy from mkv to mp4 causes variable frame rate from constant frame rate

FFmpeg trac at avcodec.org
Thu Apr 1 02:32:43 EEST 2021


#7927: Video copy from mkv to mp4 causes variable frame rate from constant frame
rate
-------------------------------------+-------------------------------------
             Reporter:  madsfoto     |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  git-master   |               Resolution:  invalid
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by Balling):

 Replying to [comment:7 RytoEX]:
 > What would be an ideal sample?  I'm willing to provide sample data for
 this.
 But this is the point. You original file is recognized as VFR!


 {{{
 ffmpeg -i Convert_to_mp4_ConstantFramerate_to_VariableFramerate.mkv -vf
 vfrdet -an -f null -

 }}}

 Also, wanted to ask. Is you file really transfer ITU-R BT.470-6 System M??

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Ticket URL: <https://trac.ffmpeg.org/ticket/7927#comment:9>
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