[PATCH v4 0/3] MR11346: dxva2: Implement DXVA2 decoder capability queries via VA-API.

[Valerian Mayega (＠valerian)]

GetDecoderDeviceGuids, GetDecoderRenderTargets and
GetDecoderConfigurations were E_NOTIMPL stubs, the root cause of
hardware video decode never working through the legacy DXVA2 API
(apps fall back to software decode after the first negotiation call
fails). Query VA-API directly for supported profiles and report the
matching DXVA2 GUIDs (H.264, HEVC Main/Main10) and render target
formats, mirroring the equivalent D3D11/Media Foundation path Wine
already supports via winegstreamer.

Signed-off-by: Valerian Mayega <[e-mail]>

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  v4: dxva2: Implement HEVC decode (CreateVideoDecoder and Execute).
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/11346