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ASF Payload Extension GUIDs

The following GUIDs define payload extensions for Advanced Systems Format (ASF) streams.

ConstantDescription
MFASFSampleExtension_SampleDuration

The data indicates the duration, in milliseconds, of the sample contained in the buffer object.

MFASFSampleExtension_OutputCleanPoint

The data indicates whether the sample is a key frame. A value of zero indicates that the sample is not a key frame. A nonzero value indicates that it is a key frame.

MFASFSampleExtension_SMPTE

The data is a SMPTE time code.

MFASFSampleExtension_FileName

The data in the sample extension specifies the name of the file from which the content in the sample was taken.

MFASFSampleExtension_ContentType

The data identifies the type of content that the sample contains.

MFASFSampleExtension_PixelAspectRatio

The data indicates the pixel aspect ratio of the content in the sample.

Requirements

Minimum supported client

Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2008 [desktop apps only]

Header

Wmcontainer.h

See also

IMFASFStreamConfig::AddPayloadExtension
IMFASFStreamConfig::GetPayloadExtension
Media Foundation Constants

 

 

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