[FFmpeg-trac] #6073(avcodec:new): QSV (h264) encodes via CPU instead of GPU

FFmpeg trac at avcodec.org
Wed Jan 11 21:21:34 EET 2017

#6073: QSV (h264) encodes via CPU instead of GPU
             Reporter:  milanc       |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  qsv          |               Blocked By:
  regression                         |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |

Comment (by jkqxz):

 Can you offer more detail about the platform you are using?

 The command as-is doesn't work for me with current libmfx on Skylake
 because AVBR without look-ahead isn't supported there.  Either re-adding
 the look-ahead or adding a maxrate both work (with AVBR+LA and VBR
 respectively), and have full hardware acceleration.

Ticket URL: <https://trac.ffmpeg.org/ticket/6073#comment:2>
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