IMFVideoMixerControl interface

Controls how the Enhanced Video Renderer (EVR) mixes video substreams. Applications can use this interface to control video mixing during playback.

The EVR mixer implements this interface. To get a pointer to the interface, call IMFGetService::GetService. The service identifier GUID is MR_VIDEO_MIXER_SERVICE. Call GetService on any of the following objects:

  • The Media Session, if the topology contains an instance of the EVR.
  • The EVR media sink.
  • The DirectShow EVR filter.
  • The EVR mixer.

If you implement a custom mixer for the EVR, the mixer can optionally expose this interface as a service.

Members

The IMFVideoMixerControl interface inherits from the IUnknown interface. IMFVideoMixerControl also has these types of members:

Methods

The IMFVideoMixerControl interface has these methods.

MethodDescription
GetStreamOutputRect

Retrieves the position of a video stream within the composition rectangle.

GetStreamZOrder

Retrieves the z-order of a video stream.

SetStreamOutputRect

Sets the position of a video stream within the composition rectangle.

SetStreamZOrder

Sets the z-order of a video stream.

 

Requirements

Minimum supported client

Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2008 [desktop apps only]

Header

Evr.h

Library

Strmiids.lib

See also

Media Foundation Interfaces
Enhanced Video Renderer

 

 

Community Additions

ADD
Show:
© 2014 Microsoft. All rights reserved.