MENewPresentation
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MENewPresentation event

Raised by a media source that provides topologies through the IMFMediaSourceTopologyProvider interface, such as the sequencer source. The source raises the event when it has a new presentation. The Media Session forwards this event to the application.

Event values

Possible values retrieved from IMFMediaEvent::GetValue include the following.

VARTYPEDescription

VT_UNKNOWN

Pointer to the IMFPresentationDescriptor interface of the presentation descriptor for the new presentation.

Remarks

The application can get the topology that corresponds to the presentation descriptor by calling IMFMediaSourceTopologyProvider::GetMediaSourceTopology on the media source. The application can then queue the new topology on the Media Session by calling IMFMediaSession::SetTopology.

Requirements

Minimum supported client

Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2008 [desktop apps only]

Header

Mfobjects.h (include Mfidl.h)

See also

Media Foundation Events
Sequencer Source

 

 

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