---
UID: NE:codecapi.eAVEncDDPreferredStereoDownMixMode
title: eAVEncDDPreferredStereoDownMixMode (codecapi.h)
description: Specifies the preferred stereo downmix mode for a Dolby Digital audio stream. This enumeration is used with the AVEncDDPreferredStereoDownMixMode property.
old-location: dshow\eavencddpreferredstereodownmixmode.htm
tech.root: DirectShow
ms.assetid: 3960d0d5-9d82-4ed5-843d-04fdb0538438
ms.date: 12/05/2018
ms.keywords: codecapi/eAVEncDDPreferredStereoDownMixMode, codecapi/eAVEncDDPreferredStereoDownMixMode_LoRo, codecapi/eAVEncDDPreferredStereoDownMixMode_LtRt, dshow.eavencddpreferredstereodownmixmode, eAVEncDDPreferredStereoDownMixMode, eAVEncDDPreferredStereoDownMixMode enumeration [DirectShow], eAVEncDDPreferredStereoDownMixMode_LoRo, eAVEncDDPreferredStereoDownMixMode_LtRt
f1_keywords:
- codecapi/eAVEncDDPreferredStereoDownMixMode
dev_langs:
- c++
req.header: codecapi.h
req.include-header: 
req.target-type: Windows
req.target-min-winverclnt: Windows 2000 Professional [desktop apps \| UWP apps]
req.target-min-winversvr: Windows 2000 Server [desktop apps \| UWP apps]
req.kmdf-ver: 
req.umdf-ver: 
req.ddi-compliance: 
req.unicode-ansi: 
req.idl: 
req.max-support: 
req.namespace: 
req.assembly: 
req.type-library: 
req.lib: 
req.dll: 
req.irql: 
topic_type:
- APIRef
- kbSyntax
api_type:
- HeaderDef
api_location:
- codecapi.h
api_name:
- eAVEncDDPreferredStereoDownMixMode
targetos: Windows
req.typenames: 
req.redist: 
ms.custom: 19H1
---

# eAVEncDDPreferredStereoDownMixMode enumeration


## -description



Specifies the preferred stereo downmix mode for a Dolby Digital audio stream. This enumeration is used with the <a href="https://docs.microsoft.com/windows/desktop/DirectShow/avencddpreferredstereodownmixmode-property">AVEncDDPreferredStereoDownMixMode</a> property.




## -enum-fields




### -field eAVEncDDPreferredStereoDownMixMode_LtRt

Left total/right total (Lt/Rt) downmix.


### -field eAVEncDDPreferredStereoDownMixMode_LoRo

Left only/right only (Lo/Ro) downmix.


## -see-also




<a href="https://docs.microsoft.com/windows/desktop/DirectShow/codec-api-enumerations">Codec API Enumerations</a>



<a href="https://docs.microsoft.com/windows/desktop/api/strmif/nn-strmif-icodecapi">ICodecAPI Interface</a>
 

 

