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Specifies the start time for a topology, relative to the start of the first topology in the sequence.
Data type
UINT64
Treat as a LONGLONG value.
Remarks
The value is given in units of 100 nanoseconds.
If the Media Session was created with the MF_SESSION_GLOBAL_TIME attribute equal to TRUE, all topologies must contain the MF_TOPOLOGY_PROJECTSTOP attribute. Otherwise, topologies must not contain the MF_TOPOLOGY_PROJECTSTOP attribute. For more information, see Sequence Presentation Times.
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 |
|
See also