[FFmpeg-trac] #7095(avfilter:open): New framesync API makes psnr generate wrong results

FFmpeg trac at avcodec.org
Thu Mar 22 17:16:10 EET 2018


#7095: New framesync API makes psnr generate wrong results
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             Reporter:  rbultje     |                    Owner:
                 Type:  defect      |                   Status:  open
             Priority:  normal      |                Component:  avfilter
              Version:  git-master  |               Resolution:
             Keywords:  framesync   |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by Cigaes):

 The videos have different lengths, the standard behaviour is to extend the
 shortest to the length of the longest, hence the result you are observing.
 {{{-vframes}}} will not help since it acts after the filters. The
 {{{shortest}}} option to {{{psnr}}} can help, though.

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Ticket URL: <https://trac.ffmpeg.org/ticket/7095#comment:3>
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