[FFmpeg-trac] #10495(avfilter:new): Optimized (x86 assembly) version of vf_ssim works incorrectly for some video inputs

FFmpeg trac at avcodec.org
Mon Jul 31 15:38:04 EEST 2023


#10495: Optimized (x86 assembly) version of vf_ssim works incorrectly for some
video inputs
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             Reporter:  Evgeny      |                    Owner:  (none)
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avfilter
              Version:  git-master  |               Resolution:
             Keywords:              |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by Evgeny):

 Replying to [comment:1 Elon Musk]:
 > Are you sure this is not h264 related?
 >
 > You just use -cpuflags 0, no need to recompile new binary.
 Tested with hevc video and got differences in SSIM too.

 Submitted a fix to patchwork
 https://patchwork.ffmpeg.org/project/ffmpeg/patch/20230731112703.13730-2-lucenticus@gmail.com/
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Ticket URL: <https://trac.ffmpeg.org/ticket/10495#comment:2>
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