[FFmpeg-trac] #7797(undetermined:closed): AVC->MPEG-2 transcoding with VA-API 2-3x slower than with QSV

[FFmpeg]

#7797: AVC->MPEG-2 transcoding with VA-API 2-3x slower than with QSV
-------------------------------------+-------------------------------------
             Reporter:  eero-t       |                    Owner:  (none)
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  git-master   |               Resolution:  fixed
             Keywords:               |               Blocked By:  7706
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Changes (by eero-t):

 * status:  new => closed
 * resolution:   => fixed

Comment:

 Closing this as fixed.

 VA-API performance was fixed for parallel AVC->MPEG2 transcoding somewhere
 in 2019 fall, and the single transcoding case performance was fixed a
 month ago with #7706.

 In all the transcode cases I'm testing (on GEN9 + TGL), VA-API performance
 is now same or better as for QSV, sometimes significantly.

 (Except in one parallel use-case, where 4K HEVC is downscaled + converted
 to YUV, downloaded to CPU side and discarded.  That one is faster with QSV
 than VA-API on all platforms.)
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/7797#comment:7>
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