[FFmpeg-devel] [PATCH V6 5/5] libavutil/hwcontext_vulkan: specify the modifier to create VKImage

[Chen, Wenbin]

> 7 Dec 2021, 10:05 by wenbin.chen at intel.com:
> 
> > When vulkan image exports to drm, the tilling need to be
> > VK_IMAGE_TILING_DRM_FORMAT_MODIFIER_EXT. Now add code to
> create vulkan
> > image using this format.
> >
> > Now the following command line works:
> >
> > ffmpeg -hwaccel vaapi -hwaccel_device /dev/dri/renderD128 -
> hwaccel_output_format \
> > vaapi -i input_1080p.264 -vf "hwmap=derive_device=vulkan,format=vulkan,
> \
> > scale_vulkan=1920:1080,hwmap=derive_device=vaapi,format=vaapi" -c:v
> h264_vaapi output.264
> >
> > Signed-off-by: Wenbin Chen <wenbin.chen at intel.com>
> > ---
> >  libavutil/hwcontext_vulkan.c | 133
> +++++++++++++++++++++++++++++++++--
> >  1 file changed, 127 insertions(+), 6 deletions(-)
> >
> 
> Pushed the patchset, along with the transpose filter.
> Tested on all 3 vendors, works fine. AMD requires
> dedicated allocation, for which I added an error condition.
> 
> The code was quite ugly in quite a lot of places,
> so I did touch mostly every line of it in some way.
> 
> Please fix your quirky, limited hardware next time.

Thanks for your review and feedback.
This limitation of hardware also bothered me for some time.

Best Regards
Wenbin
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