[FFmpeg-trac] #7650(avcodec:new): FFmpeg MPEG-2 encode fails to "invalid RC mode" when iHD driver is used through VA-API instead of QSV

[FFmpeg]

#7650: FFmpeg MPEG-2 encode fails to "invalid RC mode" when iHD driver is used
through VA-API instead of QSV
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             Reporter:  eero-t       |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avcodec
              Version:  unspecified  |               Resolution:
             Keywords:  vaapi        |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by fulinjie):

 Try this to fix in FFmpeg level, and discard the default CBR mode in
 driver as well:
 https://patchwork.ffmpeg.org/patch/11770/

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Ticket URL: <https://trac.ffmpeg.org/ticket/7650#comment:5>
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