AMD Posts Linux Driver Patches For New "VCN 4.0" IP Block

[phoronix]

Phoronix: AMD Posts Linux Driver Patches For New "VCN 4.0" IP Block

After last week AMD began posting the "GFX11" patches for RDNA3, today AMD published a set of patches enabling the VCN 4.0 IP block for next-generation video encode/decode capabilities...

https://www.phoronix.com/scan.php?page=news_item&px=AMDGPU-VCN-4.0-Patches

[tildearrow]

Let's hope this finally has improved encoding quality, doesn't cripple any of the other codecs to make room for AV1, and adds 4:4:4 encode...

...otherwise Intel will put AMD to shame...

[Danny3]

Well, I hope this time they really increase the limits to 8K, 4K @ 120 FPS or more.
HDR support too, with an API that allows video players or media centers to send HDR metadata of videos to the connected monitors / TVs over both DisplayPort and HDMI.
Come on AMD this works with your GPUs even on Windows 7 (with MPC-HC+MadVr) and on Linux still nothing.

[agd5f]

HDR support too, with an API that allows video players or media centers to send HDR metadata of videos to the connected monitors / TVs over both DisplayPort and HDMI.
Come on AMD this works with your GPUs even on Windows 7 (with MPC-HC+MadVr) and on Linux still nothing.

Support for HDR in the KMS API and in desktop environments is still in very active discussions regardless of vendor. There are a number of in progress RFCs. All of that needs to be nailed down before an application can take advantage of HDR. It works on windows because MS provides a spec and framework for vendors and applications to tie into.

[LinAGKar]

>The AV1 decode is limited to 8K and lower.

The AV1 format doesn't support more than 8K, at least with any currently defined level.

[jaxa]

>The AV1 decode is limited to 8K and lower.

The AV1 format doesn't support more than 8K, at least with any currently defined level.

That is a weird line and I came here to talk about it. Wow, what a limit, and specifying frame rate, color space, bits per channel, etc. would be nice to know. But it has always been hard to find information about VCN.

I know that H.266 defines 16K support, and AV1 level 6.3 is 8K 120 FPS. Does AV1 even need to explicitly define a level to allow for higher resolutions? 16K AVIF is possible.

Whatever the case, almost nobody needs 16K and it will probably be in AV2.

[Anux]

I know that H.266 defines 16K support, and AV1 level 6.3 is 8K 120 FPS. Does AV1 even need to explicitly define a level to allow for higher resolutions? 16K AVIF is possible.

The encoder is capable of frame sizes from 8 x 8 pixels to 65535 x 65535, its just not defined in a "level" but if needed a new level is easily added.

[Hafting]

"IP block" I guess they don't mean internet protocol addresses?

[GrumpyLinuxUser]

"IP block" I guess they don't mean internet protocol addresses?

Wikipedia: Semiconductor intellectual property core (also known as IP core, or IP block)