[FFmpeg-trac] #9055(undetermined:new): HW Decoded VAAPI video gets unexpected bars when mapped to vulkan

FFmpeg trac at avcodec.org
Wed Jan 6 13:45:52 EET 2021


#9055: HW Decoded VAAPI video gets unexpected bars when mapped to vulkan
-------------------------------------+-------------------------------------
             Reporter:  aphysically  |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  git-master   |               Resolution:
             Keywords:  vulkan       |               Blocked By:
  vaapi                              |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by aphysically):

 Replying to [comment:3 XuGuangxin]:
 > Hi aphysically,
 > Your steps 2 proved vaapi encoder is ok.
 > and your step 3 is not related to vaapi, right?
 >
 > could you use the following command line to prove it's a vulkan filter's
 issue?
 >
 > LIBVA_DRIVER_NAME=i965 ffmpeg -loglevel debug -hide_banner
 "${vulkanvaapi_flags[@]}" -i vaapiencode.mkv -c:v libx264 -r:v 30
 -profile:v high -preset veryfast -y vaapiouts.mkv
 >
 > thanks
 >

 This file produced is fine. I get the problem very specifically with both
 (1) vaapi hardware decode and (2) that decode is directly mapped into
 vulkan.

 If hwdownload the vaapi decode first there is no extra bars, even with
 vulkan.

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Ticket URL: <https://trac.ffmpeg.org/ticket/9055#comment:4>
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