/*

* 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_PCM16_TO_ALAW_HW_DEVICE_H__

#define __MMF_PCM16_TO_ALAW_HW_DEVICE_H__

#include <mmf/server/mmfswcodecwrapper.h>

#include "MMFAudioCodec.h"

#include <mmfcodec/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_PCM16_TO_ALAW_HW_DEVICE_H__