MF_MT_AUDIO_WMADRC_AVGREF attribute

Reference average volume level of a Windows Media Audio file.

Data type

UINT32

Remarks

This attribute applies to audio media types for Windows Media Audio codecs. It specifies the original average volume level of the content. The decoder can use this value to perform dynamic range control.

The IMFASFContentInfo::ParseHeader method adds this attribute to the media type if the ASF header contains the WM/WMADRCAverageReference attribute. This attribute is documented in the Windows Media Format SDK documentation.

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

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

See also

Alphabetical List of Media Foundation Attributes

IMFAttributes::GetUINT32

IMFAttributes::SetUINT32

IMFMediaType

Media Type Attributes