ID3D11VideoContext1::DecoderEnableDownsampling method

Indicates that decoder downsampling will be used and that the driver should allocate the appropriate reference frames.

Syntax


HRESULT DecoderEnableDownsampling(
  [in]       ID3D11VideoDecoder      *pDecoder,
  [in]       DXGI_COLOR_SPACE_TYPE   InputColorSpace,
  [in] const D3D11_VIDEO_SAMPLE_DESC *pOutputDesc,
  [in]       UINT                    ReferenceFrameCount
);

Parameters

pDecoder [in]

Type: ID3D11VideoDecoder*

A pointer to the ID3D11VideoDecoder interface.

InputColorSpace [in]

Type: DXGI_COLOR_SPACE_TYPE

The color space information of the reference frame data.

pOutputDesc [in]

Type: const D3D11_VIDEO_SAMPLE_DESC*

The resolution, format, and colorspace of the output/display frames. This is the destination resolution and format of the downsample operation.

ReferenceFrameCount [in]

Type: UINT

The number of reference frames to be used in the operation.

Return value

Type: HRESULT

This method returns one of the following error codes.

S_OK	The operation completed successfully.
E_INVALIDARG	An invalid parameter was passed or this function was called using an invalid calling pattern.
E_OUTOFMEMORY	There is insufficient memory to complete the operation.

Remarks

This function can only be called once for a specific ID3D11VideoDecoder interface. This method must be called prior to the first call to DecoderBeginFrame. To update the downsampling parameters, use DecoderUpdateDownsampling.

Requirements

Minimum supported client	Windows 10 [desktop apps only]
Minimum supported server	Windows Server 2016 [desktop apps only]
Header	D3d11_1.h