ID3D11VideoContext::VideoProcessorSetStreamRotation method

Sets the stream rotation for an input stream on the video processor.

Syntax

void VideoProcessorSetStreamRotation(
   ID3D11VideoProcessor           *pVideoProcessor,
   UINT                           StreamIndex,
   BOOL                           Enable,
   D3D11_VIDEO_PROCESSOR_ROTATION Rotation
);

Parameters

pVideoProcessor

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

StreamIndex

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

Specifies if the stream is to be rotated in a clockwise orientation.

Rotation

Specifies the rotation of the stream.

Return value

This method does not return a value.

Remarks

This is an optional state and the application should only use it if D3D11_VIDEO_PROCESSOR_FEATURE_CAPS_ROTATION is reported in D3D11_VIDEO_PROCESSOR_CAPS.FeatureCaps.

The stream source rectangle will be specified in the pre-rotation coordinates (typically landscape) and the stream destination rectangle will be specified in the post-rotation coordinates (typically portrait). The application must update the stream destination rectangle correctly when using a rotation value other than 0° and 180°.

Requirements

See also

ID3D11VideoContext