Specifies the start time for presentations that are queued after the first presentation.
INT64 stored as UINT64
To get this attribute, call IMFAttributes::GetUINT64.
To set this attribute, call IMFAttributes::SetUINT64.
When the application queues the first presentation on the Media Session, the application specifies the start time in the pvarStartPosition parameter of the IMFMediaSession::Start method. For any subsequent presentations, however, the start time is given by the MF_TOPOLOGY_START_TIME_ON_PRESENTATION_SWITCH attribute on the topology. The start time is specified in 100-nanosecond units, relative to the beginning of the presentation. For example, if the value is 50000000, playback starts 5 seconds into the presentation. If this attribute is not set, the default start time is zero.
The GUID constant for this attribute is exported from mfuuid.lib.
Minimum supported client
|Windows 7 [desktop apps only]|
Minimum supported server
|Windows Server 2008 R2 [desktop apps only]|