[FFmpeg-trac] #8063(ffmpeg:reopened): `-vsync cfr` tends to duplicate the wrong frames

[FFmpeg]

#8063: `-vsync cfr` tends to duplicate the wrong frames
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             Reporter:  gdgsdg123   |                    Owner:  (none)
                 Type:  defect      |                   Status:  reopened
             Priority:  normal      |                Component:  ffmpeg
              Version:  git-master  |               Resolution:
             Keywords:  fps         |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Changes (by MasterQuestionable):

 * Attachment "123.avi.xml" added.

 ͏    https://trac.ffmpeg.org/raw-attachment/ticket/8063/123.avi\\
 ͏    (~ 24.09 KiB; AVI: H.264 (AVC) video, 5 s, 1 FPS VFR (avg: 0.6, min:
 0.5, max: 1), 800x600, RGB, ~ 18.42 KiB; ... ~ 5.67 KiB)\\
 \\
 ͏    `ffprobe -v warning -hide_banner -threads 0 -show_entries "frame"
 -select_streams v:0 -of "xml" "123.avi" -o "123.avi.xml"`\\
 \\
 ͏    Note:\\
 ͏    The interpreted "duration" alike appeared wrong.\\
 ͏    Would it be the cause? ("-vsync" misused which?)
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Ticket URL: <https://trac.ffmpeg.org/ticket/8063>
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