[Request] enable VAAPI decoders (like in BtbN Windows builds)

[oscarbg]

Hi,
VAAPI supports Windows for a year at least..
FFMPEG main branch supports VAAPI Windows also for a while.. plase can add that to full build in addition to existing D3D11VA decoders?

also testing with -hwaccel d3d13va (doesn't exist) reveals vaapi missing from list:

[vist#0:0/h264 @ 0000022b09d3ccc0] Unrecognized hwaccel: d3d13va.
[vist#0:0/h264 @ 0000022b09d3ccc0] Supported hwaccels: cuda dxva2 qsv d3d11va opencl vulkan

seems BtbN include it:

[vist#0:0/h264 @ 000001a2282bedc0] Unrecognized hwaccel: d3d13va.
[vist#0:0/h264 @ 000001a2282bedc0] Supported hwaccels: cuda vaapi dxva2 qsv d3d11va opencl vulkan

thanks..

[GyanD]

I took a look at the BtbN commit which added vaapi on windows and it says doesn't actually work - it crashes.

[oscarbg]

no, is really working for me! but you have to have a working libva-win32 installation:
extract libva-win32 libva and vaon12_drv_video.dll dlls from:
https://www.nuget.org/packages/Microsoft.Direct3D.VideoAccelerationCompatibilityPack/1.0.2
and check with vainfo tool output like this:

Trying display: win32
libva info: VA-API version 1.21.0
libva info: Trying to open ./\vaon12_drv_video.dll
libva info: Found init function __vaDriverInit_1_21
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.21 (libva 2.21.0)
vainfo: Driver version: Mesa Gallium driver 24.1.0-devel for D3D12 (NVIDIA GeForce RTX 3070)
vainfo: Supported profile and entrypoints

[Andarwinux]

btbn build libva is already statically linked, vaon12_drv_video.dl is the only thing needed.

[GyanD]

The vaapi-linked build gets generated but with vainfo I get

edit:: Never mind. Forgot to set env vars.

[GyanD]

added to 2024-03-28 builds.

[oscarbg]

works nice! thanks..

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