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IMFVideoProcessor::GetFilteringValue method

Retrieves the current setting for an image filter.

Syntax


HRESULT GetFilteringValue(
  [in]   DWORD dwProperty,
  [out]  DXVA2_Fixed32 *pValue
);

Parameters

dwProperty [in]

The filter setting to query. For a list of possible values, see DXVA Image Filter Settings.

pValue [out]

Pointer to a DXVA2_Fixed32 structure that receives the current value.

Return value

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Return codeDescription
S_OK

The method succeeded.

E_INVALIDARG

The value of dwProperty is invalid.

MF_E_TRANSFORM_TYPE_NOT_SET

The media type for the reference stream is not set.

 

Remarks

Before calling this method, you must set the media type for the reference stream.

Until the mixer's video processor mode is set, the returned values are all zero. After the processor mode is set, the returned values reflect the current mode. To select a video processor mode, call IMFVideoProcessor::SetVideoProcessorMode. Otherwise, the EVR automatically selects a mode when streaming begins.

To find out which image filters the driver supports, call IMFVideoProcessor::GetVideoProcessorCaps.

Requirements

Minimum supported client

Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2008 [desktop apps only]

Header

Evr9.h

Library

Strmiids.lib

See also

IMFVideoProcessor
Enhanced Video Renderer

 

 

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