ID3D11VideoDevice1.CheckVideoDecoderDownsampling

Undocumented in source but is binding to Windows. You might be able to learn more by searching the web for its name.
interface ID3D11VideoDevice1
extern (Windows)
HRESULT
CheckVideoDecoderDownsampling
(
const D3D11_VIDEO_DECODER_DESC* pInputDesc
,
DXGI_COLOR_SPACE_TYPE InputColorSpace
,
const D3D11_VIDEO_DECODER_CONFIG* pInputConfig
,
const DXGI_RATIONAL* pFrameRate
,,,)

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