--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/devsound/devsoundrefplugin/src/plugin/audio/MmfALawToPcm16HwDevice.h	Tue Feb 02 01:56:55 2010 +0200
@@ -0,0 +1,61 @@
+/*
+* Copyright (c) 2002-2003 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+#ifndef __MMF_ALAW_TO_PCM16_HW_DEVICE_H__
+#define __MMF_ALAW_TO_PCM16_HW_DEVICE_H__
+#include <mmf/server/mmfswcodecwrapper.h>
+#include "MMFAudioCodecBase.h"
+#include "MMFAudioALawToS16PcmCodec.h"
+
+const TInt KALawToCM16SrcBufferSize  = 0x1000;
+const TInt KALawToCM16SinkBufferSize = 0x2000;
+
+/*
+*
+* CMMFAlawToPcm16CodecHwDevice 
+*
+*/
+class CMMFAlawToPcm16CodecHwDevice : public CMMFSwCodecWrapper
+	{
+public:
+	static  CMMFAlawToPcm16CodecHwDevice* NewL();
+	virtual CMMFSwCodec& Codec();
+	~CMMFAlawToPcm16CodecHwDevice(); 
+private:
+	void ConstructL();
+	};
+
+/*
+*
+* class CMMFAlawToPcm16Codec coverts ALaw to PCM
+*  
+*/
+class CMMFAlawToPcm16Codec : public CMMFSwCodec
+	{
+public:
+	virtual TCodecProcessResult ProcessL(const CMMFBuffer& aSource, CMMFBuffer& aDest);
+	virtual TUint SourceBufferSize() {return KALawToCM16SrcBufferSize;};
+	virtual TUint SinkBufferSize() {return KALawToCM16SinkBufferSize;};
+private:
+	TBool CheckPreconditions( const CMMFDataBuffer* aSrcBuffer, CMMFDataBuffer* aDestBuffer );
+	TInt AlawSampleToPcm(TUint8 aAlaw);
+private:
+	TMMFAudioALawToS16PcmCodec iAlawTo16Pcm;
+	};
+
+#endif //__MMF_ALAW_TO_PCM16_HW_DEVICE_H__
+