// Copyright (c) 2002-2009 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_BT_PCM16_TO_ALAW_HW_DEVICE_H__

 #define __MMF_BT_PCM16_TO_ALAW_HW_DEVICE_H__

 #include <mmfbtswcodecwrapper.h>

 #include "MmfBtAudioCodec.h"

 #include "MMFAudioSPcm16ToALawCodec.h"

 const TInt KPCM16ToALawSrcBufferSize  = 0x2000;

 const TInt KPCM16ToAlawSinkBufferSize = 0x1000;

 /*

 *

 * class CMMFPcm16ToAlawHwDevice 

 *

 */

 class CMMFPcm16ToAlawHwDevice : public CMMFSwCodecWrapper

 	{

 public:

 	static  CMMFPcm16ToAlawHwDevice* NewL();

 	virtual CMMFSwCodec& Codec();

     ~CMMFPcm16ToAlawHwDevice(); 

 private:

 	void ConstructL();

 	};

 /*

 *

 * class CMMFPcm16ToALawCodec coverts PCM to ALaw

 *  

 */

 class CMMFPcm16ToALawCodec : public CMMFSwCodec

 	{

 public:

 	virtual TCodecProcessResult ProcessL(const CMMFBuffer& aSource, CMMFBuffer& aDest);

 	virtual TUint SourceBufferSize() {return KPCM16ToALawSrcBufferSize;};

 	virtual TUint SinkBufferSize() {return KPCM16ToAlawSinkBufferSize;};

 private:

 	TBool CheckPreconditions( const CMMFDataBuffer* aSrcBuffer, CMMFDataBuffer* aDestBuffer );

 private:

 	TMMFAudioSPcm16ToAlawCodec  iPcm16ToALaw;

 	};

 #endif //__MMF_BT_PCM16_TO_ALAW_HW_DEVICE_H__