[FFmpeg-trac] #9164(undetermined:new): Blackdetect filter PTS return limited to six digits

FFmpeg trac at avcodec.org
Sat Mar 27 18:36:43 EET 2021


#9164: Blackdetect filter PTS return limited to six digits
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             Reporter:               |                    Owner:
  livingroomg3                       |
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by livingroomg3):

 Thanks Balling!

 Yesterday I applied the change I mentioned above to
 ‚Äčhttps://github.com/FFmpeg/FFmpeg/blob/master/libavutil/timestamp.h

 The returns from detectblack and "select='gt(scene,0.1)',showinfo" (using
 these in my current project) are now frame accurate due to the retained
 six digits of precision throughout the program.

 The truncation of precision digits to 3, 2, and eventually 1 or zero as
 timestamps increment in the current code does not return frame accurate
 results.

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Ticket URL: <https://trac.ffmpeg.org/ticket/9164#comment:8>
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