#7797: AVC->MPEG-2 transcoding with VA-API 2-3x slower than with QSV
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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.)
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Ticket URL: <https://trac.ffmpeg.org/ticket/7797#comment:7>
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