IDXVAHD_Device::GetVideoProcessorInputFormats method (dxvahd.h)

Gets a list of the input formats supported by the Microsoft DirectX Video Acceleration High Definition (DXVA-HD) device.

Syntax

HRESULT GetVideoProcessorInputFormats(
 [in] UINT Count,
 [out] D3DFORMAT *pFormats
);

Parameters

[in] Count

The number of formats to retrieve. This parameter must equal the InputFormatCount member of the DXVAHD_VPDEVCAPS structure. Call the IDXVAHD_Device::GetVideoProcessorDeviceCaps method to get this value.

[out] pFormats

A pointer to an array of D3DFORMAT values. The Count parameter specifies the number of elements in the array. The method fills the array with a list of input formats.

Return value

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Remarks

The list of formats can include both D3DFORMAT values, such as D3DFMT_X8R8G8B8, and FOURCC codes, such as 'NV12'. For more information, see Video FOURCCs.

Examples

// Checks whether a DXVA-HD device supports a specified input format.

HRESULT CheckInputFormatSupport(
 IDXVAHD_Device *pDXVAHD,
 const DXVAHD_VPDEVCAPS& caps,
 D3DFORMAT d3dformat
 )
{
 D3DFORMAT *pFormats = new (std::nothrow) D3DFORMAT[ caps.InputFormatCount ];
 if (pFormats == NULL)
 {
 return E_OUTOFMEMORY;
 }

 HRESULT hr = pDXVAHD->GetVideoProcessorInputFormats(
 caps.InputFormatCount, 
 pFormats
 );

 if (FAILED(hr)) 
 { 
 goto done; 
 }

 UINT index;
 for (index = 0; index < caps.InputFormatCount; index++)
 {
 if (pFormats[index] == d3dformat)
 {
 break;
 }
 }
 if (index == caps.InputFormatCount)
 {
 hr = E_FAIL;
 }

done:
 delete [] pFormats;
 return hr;
}

Requirements

See also

DXVA-HD

IDXVAHD_Device