The following attributes are supported by the LEAD Audio Volume Transform through the IMFAttributes interface.
|Data type||Attribute CLSID||Description|
|UINT32 (int)||LMF_VOLUME_AMPLITUDE||Sets or gets sound stream volume.|
|UINT32 (BOOL)||LMF_VOLUME_MUTE||Sets or gets mute volume option.|
|UINT32 (long)||LMF_VOLUME_NUMCHANNELS||Number of audio channels of the current media format.|
For more information on how to use the Transform Attributes, refer to Using Media Foundation Transform Attributes.