Event Attributes (Microsoft Media Foundation)

The following attributes apply to events.

Attribute	Description
MF_EVENT_DO_THINNING	When a media source requests a new playback rate, specifies whether the source also requests thinning.
MF_EVENT_OUTPUT_NODE	Identifies the topology node for a stream sink.
MF_EVENT_PRESENTATION_TIME_OFFSET	Offset between the presentation time and the media source's time stamps.
MF_EVENT_SCRUBSAMPLE_TIME	Presentation time for a sample that was rendered while scrubbing.
MF_EVENT_SESSIONCAPS	Contains flags that define the capabilities of the Media Session, based on the current presentation.
MF_EVENT_SESSIONCAPS_DELTA	Contains flags that indicate which capabilities have changed in the Media Session, based on the current presentation.
MF_EVENT_SOURCE_ACTUAL_START	Contains the start time when a media source restarts from its current position.
MF_EVENT_SOURCE_CHARACTERISTICS	Specifies the current characteristics of the media source.
MF_EVENT_SOURCE_CHARACTERISTICS_OLD	Specifies the previous characteristics of the media source.
MF_EVENT_SOURCE_FAKE_START	Specifies whether the current segment topology is empty.
MF_EVENT_SOURCE_PROJECTSTART	Specifies the start time for a segment topology.
MF_EVENT_SOURCE_TOPOLOGY_CANCELED	Specifies whether the sequencer source canceled a topology.
MF_EVENT_START_PRESENTATION_TIME	The starting time for the presentation, in 100-nanosecond units, as measured by the presentation clock.
MF_EVENT_START_PRESENTATION_TIME_AT_OUTPUT	The presentation time at which the media sinks will render the first sample of the new topology.
MF_EVENT_TOPOLOGY_STATUS	Specifies the status of a topology during playback.
MF_SESSION_APPROX_EVENT_OCCURRENCE_TIME	The approximate time when the Media Session raised an event.

 

Related topics

IMFMediaEvent

Media Foundation Events

Media Foundation Attributes