// 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:

// MmfBtpcm16ToPcmU8HwDevice.h

// 

//

#ifndef __MMF_BT_ALAW_TO_PCM16_HW_DEVICE_H__

#define __MMF_BT_ALAW_TO_PCM16_HW_DEVICE_H__

#include <mmfbtswcodecwrapper.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_BT_ALAW_TO_PCM16_HW_DEVICE_H__