[FFmpeg-trac] #10963(undetermined:new): VP9 hardware decoding very slow on Apple Silicon

[FFmpeg]

#10963: VP9 hardware decoding very slow on Apple Silicon
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             Reporter:  low-batt     |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  git-master   |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
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Comment (by low-batt):

 I just don't know the FFmpeg and Video Toolbox code well enough to say
 where the problem is. It would be good to prove that FFmpeg is properly
 using the Video Toolbox APIs in this case. It seems to be related to the
 8K resolution. Do we know FFmpeg is properly handling buffers and not
 having Video Toolbox decode the same bytes multiple times? That kind of
 thing.
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Ticket URL: <https://trac.ffmpeg.org/ticket/10963#comment:3>
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