[FFmpeg-trac] #7875(undetermined:new): ffmpeg freezedetect filter output

[FFmpeg]

#7875: ffmpeg freezedetect filter output
-------------------------------------+-------------------------------------
             Reporter:  arianaa30    |                     Type:
                                     |  enhancement
               Status:  new          |                 Priority:  important
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 The ffmpeg freeze output is expected to output intervals of detections
 '''always''' with start-duration-end tags. But we see sometimes, start tag
 is missing, and duration shows right after previous end. For development
 purposes, it is best to always have a start, even if start is equal to
 previous end.

 Example command:

 {{{
  ffmpeg -i freeze.mp4 -vf "freezedetect=n=-60dB:d=0.1" -map 0:v:0 -f null
 -
 }}}


 How to reproduce:
 {{{
 % ffmpeg -i input ... output
 ffmpeg version N-93649-gd0ca749adb Copyright (c) 2000-2019 the FFmpeg
 developers
 built with gcc 8.3.1 (GCC) 20190414
 }}}


 {{{
 [freezedetect @ 0000016df6c06a00] lavfi.freezedetect.freeze_start: 0
 [freezedetect @ 0000016df6c06a00] lavfi.freezedetect.freeze_duration:
 0.9009
 [freezedetect @ 0000016df6c06a00] lavfi.freezedetect.freeze_end: 0.9009
 [freezedetect @ 0000016df6c06a00] lavfi.freezedetect.freeze_duration:
 0.1001
 [freezedetect @ 0000016df6c06a00] lavfi.freezedetect.freeze_end: 1.001
 [freezedetect @ 0000016df6c06a00] lavfi.freezedetect.freeze_start: 5.005
 [freezedetect @ 0000016df6c06a00] lavfi.freezedetect.freeze_duration:
 2.03537
 [freezedetect @ 0000016df6c06a00] lavfi.freezedetect.freeze_end: 7.04037
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/7875>
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