[FFmpeg-trac] #7764(undetermined:new): Support for HW accelerated 10-bit -> 8-bit conversion support

[FFmpeg]

#7764: Support for HW accelerated 10-bit -> 8-bit conversion support
-------------------------------------+-------------------------------------
             Reporter:  eero-t       |                    Owner:
                 Type:  enhancement  |                   Status:  new
             Priority:  wish         |                Component:
                                     |  undetermined
              Version:  git-master   |               Resolution:
             Keywords:  vaapi        |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by fulinjie):

 For VAAPI:
 ffmpeg -y -hwaccel vaapi -vaapi_device /dev/dri/renderD128
 -hwaccel_output_format vaapi -i ./10_sunflower.mp4 -vf
 scale_vaapi=format=nv12 -c:v h264_vaapi output.mp4

 This pipeline works.

 However, it failed with the provided clips and needs to be investigated
 more.

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Ticket URL: <https://trac.ffmpeg.org/ticket/7764#comment:7>
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