[FFmpeg-trac] #6682(undetermined:new): hstack repeats input frames

[FFmpeg]

#6682: hstack repeats input frames
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             Reporter:  damonmaria   |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  git-master   |  undetermined
             Keywords:  hstack       |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
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Comment (by damonmaria):

 Trying to use ffprobe to diagnose more I've noticed that the `pkt_dts` /
 `pkt_pts` can be +/- 3. For example (video is 4 FPS):
 {{{
 pkt_pts=1012502
 pkt_pts_time=0:00:11.250022
 pkt_dts=1012502
 pkt_dts_time=0:00:11.250022
 best_effort_timestamp=1012502
 best_effort_timestamp_time=0:00:11.250022
 }}}
 If ffmpeg is trying to combine 2 streams and the pts is off by this tiny
 fraction, would that cause the issues I'm seeing?

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Ticket URL: <https://trac.ffmpeg.org/ticket/6682#comment:19>
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