[FFmpeg-trac] #7690(undetermined:new): FFmpeg QSV decode + VPP performance is just a fraction of what one gets with VA-API and MediaSDK

[FFmpeg]

#7690: FFmpeg QSV decode + VPP performance is just a fraction of what one gets
with VA-API and MediaSDK
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             Reporter:  eero-t       |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  git-master   |               Resolution:
             Keywords:  qsv          |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by wenbinCHEN):

 now I tried the two backends and they have similar performance (qsv
 fps:554, vaapi fps:615). The gap may caused by memory copy that mentioned
 by linjie.

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Ticket URL: <https://trac.ffmpeg.org/ticket/7690#comment:18>
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