[FFmpeg-trac] #11500(swscale:new): AV1 frame extraction (screenshot) fails

[FFmpeg]

#11500: AV1 frame extraction (screenshot) fails
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             Reporter:  ffmpegScale  |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  swscale
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  1            |
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Comment (by MasterQuestionable):

 ͏    Please run my original command as-is:
 ͏    `ffmpeg -v debug -hide_banner -nostdin -nostats -f lavfi -i "testsrc"
 -vframes 1 -vf "scale=1x1" -f null -`
 ͏    .
 ͏    And edit comment:8 to replace the mostly duplicate output.
 ͏    (it's effectively duplicate as that in comment:6)
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Ticket URL: <https://trac.ffmpeg.org/ticket/11500#comment:9>
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