// 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__