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MF_SESSION_GLOBAL_TIME attribute

Specifies whether topologies have a global start and stop time.

Data type

UINT32

Treat as a Boolean value.

Remarks

You can set this attribute when you create the media sesison by using the pConfiguration parameter of the MFCreateMediaSession or MFCreatePMPMediaSession function.

If this attribute is present and nonzero, then all topologies passed to the Media Session must have the MF_TOPOLOGY_PROJECTSTART and MF_TOPOLOGY_PROJECTSTOP attributes. These attributes specify the start and stop times for the topology relative to the entire presentation.

If this attribute is absent or FALSE, the topologies must not have the MF_TOPOLOGY_PROJECTSTART or MF_TOPOLOGY_PROJECTSTOP attribute.

Use this attribute to create editing sequences. For more information, see Sequence Presentation Times.

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

Requirements

Minimum supported client

Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2008 [desktop apps only]

Header

Mfidl.h

See also

Media Session Attributes
Sequence Presentation Times
IMFAttributes::GetUINT32
IMFAttributes::SetUINT32
MF_TOPOLOGY_PROJECTSTART
MF_TOPOLOGY_PROJECTSTOP

 

 

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