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MFCreateVideoMixer function

Creates the default video mixer for the enhanced video renderer (EVR).

Syntax


HRESULT MFCreateVideoMixer(
  IUnknown *pOwner,
  REFIID riidDevice,
  REFIID riid,
  void **ppVideoMixer
);

Parameters

pOwner

Pointer to the owner of this object. If the object is aggregated, pass a pointer to the aggregating object's IUnknown interface. Otherwise, set this parameter to NULL.

riidDevice

Interface identifier (IID) of the video device interface that will be used for processing the video. Currently the only supported value is IID_IDirect3DDevice9.

riid

IID of the requested interface on the video mixer. The video mixer exposes the IMFTransform interface.

ppVideoMixer

Receives a pointer to the requested interface. The caller must release the interface.

Return value

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

Return codeDescription
S_OK

The function succeeded.

 

Requirements

Minimum supported client

Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2008 [desktop apps only]

Header

Evr.h

Library

Evr.lib

DLL

Evr.dll

See also

Media Foundation Functions
Enhanced Video Renderer

 

 

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