MFSampleExtension_CleanPoint attribute

Стаття
01/07/2021

Indicates whether a sample is a random access point.

Data type

BOOL stored as UINT32

Get/set

To get this attribute, call IMFAttributes::GetUINT32.

To set this attribute, call IMFAttributes::SetUINT32.

Applies to

IMFSample

Remarks

This attribute applies to samples. If the attribute is TRUE, the sample is a random access point and decoding can begin from this sample. Otherwise, the sample is not a random access point.

If this attribute is not set, the default value is FALSE.

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

Examples

inline BOOL IsRandomAccessPoint(IMFSample *pSample)
{
    // Check for the "clean point" attribute. Default to FALSE.
    return MFGetAttributeUINT32(pSample, MFSampleExtension_CleanPoint, FALSE);
}

Requirements

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

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