MF_TOPOLOGY_PROJECTSTART attribute

Specifies the stop 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_PROJECTSTART attribute. Otherwise, topologies must not contain the MF_TOPOLOGY_PROJECTSTART 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
Mfidl.h

See also

Alphabetical List of Media Foundation Attributes

Sequence Presentation Times

Topology Attributes

IMFAttributes::GetUINT64

IMFAttributes::SetUINT64

MF_TOPOLOGY_PROJECTSTOP