// 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__