[FFmpeg-trac] #4875(ffmpeg:new): Last frame of low-fps vfr mov input file duplicated 40000 times

[FFmpeg]

#4875: Last frame of low-fps vfr mov input file duplicated 40000 times
-------------------------------------+-------------------------------------
             Reporter:  maxvgi       |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:  ffmpeg
              Version:  git-master   |               Resolution:
             Keywords:  mov fps      |               Blocked By:
  regression                         |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by cehoyos):

 Replying to [comment:6 maxvgi]:
 > The input file was created from ip-camera with
 > {{{
 > ffmpeg -rtsp_transport tcp -stimeout 30000000 -i rtsp://.... -copytb -1
 -vcodec copy -an -map 0:0 -f segment -segment_time 30 -segment_format mp4
 out_%d.mp4
 > }}}

 The following might be a workaround:
 {{{
 $ ffmpeg -rtsp_transport tcp -stimeout 30000000 -i rtsp://... -vcodec copy
 -map 0:v:0 -f segment -segment_time 30 -segement_format rawvideo
 out_%d.h264
 }}}
 The output files probably play with a wrong speed, this must be
 overwritten:
 {{{
 $ ffmpeg -r 10 -i out_1.h264 out.mp4
 }}}
 > My camera output stream options allow setting only fixed fps, but some
 frames where possibly lost during network transmission or by camera
 hardware.
 Maybe I am wrong and the file you provided is cfr.

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Ticket URL: <https://trac.ffmpeg.org/ticket/4875#comment:7>
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