Radeon "RADV" Vulkan Driver Now Handles 12-bit AV1 Video Decoding

[phoronix]

Phoronix: Radeon "RADV" Vulkan Driver Now Handles 12-bit AV1 Video Decoding

The Vulkan Video support within Mesa's Radeon "RADV" Vulkan driver continues to be improved upon. The newest addition now found in the code for Mesa 24.3 is enabling 12-bit AV1 content accelerated decoding...

https://www.phoronix.com/news/RADV-AV1-12-bit-Decode

[Quackdoc]

Afact this patch does not add AV1 professional profile, this adds 12 bit decoding, it's still by the looks of it missing 422 and 444, perhaps im wrong, but if not, this seems like uh... really bad. Misrepresenting what your hardware supports ain't great chief.

if (av1_profile->stdProfile != STD_VIDEO_AV1_PROFILE_MAIN &&
(!have_12bit || av1_profile->stdProfile != STD_VIDEO_AV1_PROFILE_PROFESSIONAL))
return VK_ERROR_VIDEO_PROFILE_OPERATION_NOT_SUPPORTED_KHR ;

[Sethox]

Afact this patch does not add AV1 professional profile, this adds 12 bit decoding, it's still by the looks of it missing 422 and 444, perhaps im wrong, but if not, this seems like uh... really bad. Misrepresenting what your hardware supports ain't great chief.

It's just reporting on what's been merged, not AV1 decoding work in it's entity. But okey..

[Quackdoc]

It's just reporting on what's been merged, not that AV1 decoding work in it's entity. But okey..

Read the code yourself, I hope im just strongly misinterpreting some how but this looks an awful lot like the driver is not going to return an "unsupported" when queried about the professional profile support.

https://gitlab.freedesktop.org/mesa/mesa/-/blob/main/src/amd/vulkan/radv_video.c#L625

[Brisse]

That's great, but sadly Vulkan Video h264 and h265 is still not working on my end. I suspect lack of testing on older hardware. I kept silent about it until now thinking that it's just early problems that will be ironed out in time but it's been a year or so now. I've not seen anyone mention it on any of the issue trackers so I'll probably have to do something about that myself but I have no clue which component is the culprit.

Debian testing/unstable
Mesa 24.2.0~rc4-1
ffmpeg 7:7.0.2-3
mpv 0.28

Ryzen 2700X
R9 Fury

~$ RADV_PERFTEST=vulkan_video vulkaninfo

https://gist.github.com/Brisse89/7a4ef0e15e20c701e52a196b1cc0489d

(Sidenote: VAAPI in mpv also broke recently, probably when I installed mesa 24.2 or ffmpeg 7.0. Will have to investigate that also.)

[Serafean]

That's great, but sadly Vulkan Video h264 and h265 is still not working on my end. I suspect lack of testing on older hardware. I kept silent about it until now thinking that it's just early problems that will be ironed out in time but it's been a year or so now. I've not seen anyone mention it on any of the issue trackers so I'll probably have to do something about that myself but I have no clue which component is the culprit.

Seriously, go for it. Better get help digging, than waiting. Make the world better for everyone.

[F.Ultra]

Afact this patch does not add AV1 professional profile, this adds 12 bit decoding, it's still by the looks of it missing 422 and 444, perhaps im wrong, but if not, this seems like uh... really bad. Misrepresenting what your hardware supports ain't great chief.

For 12-bits 420 is allowed for the professional profile

[Brisse]

Seriously, go for it. Better get help digging, than waiting. Make the world better for everyone.

I agree, and it's done. Still don't know where in the stack the issue is but figured mpv was as good a place to start as any.

https://github.com/mpv-player/mpv/issues/14680

[Vincenzov]

Hello everyone, but amf by amd, does it work with linux?

[pharmasolin]

Hello everyone, but amf by amd, does it work with linux?

It is, but for some reason it's not available for ubuntu 24.04 in their repos for 22.04 they have it

https://repo.radeon.com/amdgpu/6.1.3/ubuntu/pool/proprietary/a/amf-amdgpu-pro/

for 24.04 there is no package

https://repo.radeon.com/amdgpu/6.2/ubuntu/pool/main/a/