VP9 & AV1 Vulkan Video Extensions Expected Next Year

[phoronix]

Phoronix: VP9 & AV1 Vulkan Video Extensions Expected Next Year

While this week saw the ratification of the Vulkan Video 1.0 extensions in stable form after being out as provisional extensions since early 2021, one of the sad aspects of it is still lacking support for the popular royalty-free VP9 and AV1 codecs. Fortunately, at least, it's been re-affirmed for VP9/AV1 support in 2023...

https://www.phoronix.com/news/VP9-AV1-Vulkan-2023

[Danny3]

Good!
A bit weird that they were not a priority, but glad that they are coming too.

[Anux]

Good!
A bit weird that they were not a priority, but glad that they are coming too.

Maybe the guys from Khronos learnd from their past mistakes and try to prioritize more technology that is actually widespread in use.

If they had just made a standard without restricting it to certain encodings that would have been even better.

[DanL]

So will these extensions allow some acceleration on GPU's that support Vulkan, but don't have AV1 hardware accel?

[Sethox]

Question: So these encoder/decoders in the Vulkan extensions, is it with GPU capable encoder/decoder of the same type?
Rationalization: If that's the case then it makes sense why Khronos Group started with H.264/265 first.

[jacob]

Maybe the guys from Khronos learnd from their past mistakes and try to prioritize more technology that is actually widespread in use.

If they had just made a standard without restricting it to certain encodings that would have been even better.

Those codecs are in use on YouTube and Netflix, how much more mainstream do you need?

[Azrael5]

Excellent news!

[brucethemoose]

So will these extensions allow some acceleration on GPU's that support Vulkan, but don't have AV1 hardware accel?

No, it just enables existing hardware support AFAIK.


There is a GPU shader-assisted AV1 decoder written for for the old Xbox One. But even if it was ported, IDK if it would be worth using outside that niche environment.

[Quackdoc]

So will these extensions allow some acceleration on GPU's that support Vulkan, but don't have AV1 hardware accel?

no. it simply will interface with the codec block on the GPU (and maybe soc? unaware how this will play out) In theory I guess, but in practicality no.

Question: So these encoder/decoders in the Vulkan extensions, is it with GPU capable encoder/decoder of the same type?
Rationalization: If that's the case then it makes sense why Khronos Group started with H.264/265 first.

The gpu does need to support the codecs. it's possible that someone might be able to say, add a libva backend to it for fallback or something, but that would be kinda silly

[cl333r]

What's wrong with encoding to VP9? I mean why did he specifically not mention it?