MF_EVENT_SOURCE_PROJECTSTART attribute

Specifies the start time for a segment topology.

Data type

UINT64

Treat as a LONGLONG value.

Remarks

This attribute is used with the MESourceStarted event. The sequencer source sets this attribute when the current segment topology has the MF_TOPOLOGY_PROJECTSTART attribute. The two attributes have the same value.

This attribute is a signed value, although it is stored as a UINT64.

The GUID constant for this attribute is exported from mfuuid.lib.

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2008 [desktop apps only]
Header	Mfapi.h

See also

Alphabetical List of Media Foundation Attributes

Event Attributes

IMFAttributes::GetUINT64

IMFAttributes::SetUINT64