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eAVDecAACDownmixMode enumeration (codecapi.h)

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[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

Specifies whether an AAC decoder uses standard MPEG-2/MPEG-4 stereo downmix equations. This enumeration is used with the AVDecAACDownmixMode property.

Syntax

typedef enum eAVDecAACDownmixMode {
  eAVDecAACUseISODownmix = 0,
  eAVDecAACUseARIBDownmix = 1
} ;

Constants

 
eAVDecAACUseISODownmix
Value: 0
Use the standard ISO MPEG-2/MPEG-4 downmix equations.
eAVDecAACUseARIBDownmix
Value: 1
Use the downmix equations defined by ARIB document STD-B21.

Requirements

Requirement Value
Minimum supported client Windows 2000 Professional [desktop apps | UWP apps]
Minimum supported server Windows 2000 Server [desktop apps | UWP apps]
Header codecapi.h

See also

Codec API Enumerations

ICodecAPI Interface