[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):

 This issue happens when resolution is large(4K).

 {{{
 ffmpeg -y -hwaccel vaapi -vaapi_device /dev/dri/renderD128
 -hwaccel_output_format vaapi -i 4K_10_sunflower.mp4 -vf
 scale_vaapi=w=1920:h=1080 -c:v hevc_vaapi output.mp4
 }}}

 or

 {{{
 ffmpeg -y -hwaccel vaapi -vaapi_device /dev/dri/renderD128
 -hwaccel_output_format vaapi -i 4K_10_sunflower.mp4 -vf
 scale_vaapi=format=nv12 -c:v hevc_vaapi output.mp4
 }}}


 Both got errors:

 {{{
 [VP]:   CRITICAL - RenderPhase:5936: Failed to create filter description.
 [VP]:   CRITICAL - RenderMultiPhase:2008: MOS returned error, eStatus =
 0x19
 [VP]:   CRITICAL - Render:2340: MOS returned error, eStatus = 0x19
 [VP]:   CRITICAL - RenderComposite:953: MOS returned error, eStatus = 0x19
 [VP]:   CRITICAL - RenderPass:776: MOS returned error, eStatus = 0x19
 [VP]:   CRITICAL - Render:1205: MOS returned error, eStatus = 0x19
 [VP]:   CRITICAL - DdiVp_EndPicture:3524: Failed to call render function.
 [Parsed_scale_vaapi_0 @ 0x5615ed191600] Failed to start picture
 processing: 1 (operation failed).
 Error while filtering: Input/output error
 Failed to inject frame into filter network: Input/output error

 }}}

 Related issue in media driver:
 https://github.com/intel/media-driver/issues/499

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Ticket URL: <https://trac.ffmpeg.org/ticket/7764#comment:8>
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