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ID3D11VideoContext::VideoProcessorSetStreamPixelAspectRatio method

Sets the pixel aspect ratio for an input stream on the video processor.

Syntax


void VideoProcessorSetStreamPixelAspectRatio(
  [in]  ID3D11VideoProcessor *pVideoProcessor,
  [in]  UINT StreamIndex,
  [in]  BOOL Enable,
  [in]  const DXGI_RATIONAL *pSourceAspectRatio,
  [in]  const DXGI_RATIONAL *pDestinationAspectRatio
);

Parameters

pVideoProcessor [in]

A pointer to the ID3D11VideoProcessor interface. To get this pointer, call ID3D11VideoDevice::CreateVideoProcessor.

StreamIndex [in]

The zero-based index of the input stream. To get the maximum number of streams, call ID3D11VideoProcessorEnumerator::GetVideoProcessorCaps and check the MaxStreamStates structure member.

Enable [in]

Specifies whether the pSourceAspectRatio and pDestinationAspectRatio parameters contain valid values. Otherwise, the pixel aspect ratios are unspecified.

pSourceAspectRatio [in]

A pointer to a DXGI_RATIONAL structure that contains the pixel aspect ratio of the source rectangle. If Enable is FALSE, this parameter can be NULL.

pDestinationAspectRatio [in]

A pointer to a DXGI_RATIONAL structure that contains the pixel aspect ratio of the destination rectangle. If Enable is FALSE, this parameter can be NULL.

Return value

This method does not return a value.

Remarks

This function can only be called if the driver reports the D3D11_VIDEO_PROCESSOR_FEATURE_CAPS_PIXEL_ASPECT_RATIO capability. If this capability is not set, this function will have no effect.

Pixel aspect ratios of the form 0/n and n/0 are not valid.

The default pixel aspect ratio is 1:1 (square pixels).

Windows Phone 8: This API is supported.

Requirements

Minimum supported client

Windows 8 [desktop apps | Windows Store apps]

Minimum supported server

Windows Server 2012 [desktop apps | Windows Store apps]

Header

D3d11.h

See also

ID3D11VideoContext
Picture Aspect Ratio

 

 

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