Raised by a media stream when the source starts without seeking. A media stream raises this event when the media source raises the MESourceStarted event.
Possible values retrieved from IMFMediaEvent::GetValue include the following.
||No event data.
||The starting time, in 100-nanosecond units, relative to the time stamps on the samples.
|Minimum supported client
||Windows Vista [desktop apps only]
|Minimum supported server
||Windows Server 2008 [desktop apps only]