// 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_IMAADPCM_TO_PCM16_HW_DEVICE_H__

#define __MMF_BT_IMAADPCM_TO_PCM16_HW_DEVICE_H__

#include <mmfbtswcodecwrapper.h>

#include "MMFAudioCodecBase.h"

#include "MMFAudioImaAdpcmToS16PcmCodec.h"

const TInt KImaToPCM16SrcBufferSize  = 1024;

const TInt KImaToPCM16SinkBufferSize = 4096;

/*

*

* class CMMFImaAdpcmToPcm16CodecHwDevice 

*

*/

class CMMFImaAdpcmToPcm16CodecHwDevice : public CMMFSwCodecWrapper

	{

public:

	static  CMMFImaAdpcmToPcm16CodecHwDevice* NewL();

	virtual CMMFSwCodec& Codec();

	~CMMFImaAdpcmToPcm16CodecHwDevice(); 

	virtual TInt Start(TDeviceFunc aFuncCmd, TDeviceFlow aFlowCmd);

private:

	void ConstructL();

	};

/*

*

* class CMMFMulawToPcm16Codec coverts Imaad to PCM16

*  

*/

class CMMFImaAdpcmToPcm16Codec : public CMMFSwCodec

	{

public:

	CMMFImaAdpcmToPcm16Codec();

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

	virtual TUint SourceBufferSize() {return KImaToPCM16SrcBufferSize;}

	virtual TUint SinkBufferSize() {return KImaToPCM16SinkBufferSize;}

	TInt Configure(TUint aChannels, TUint aSampleRate);

private:

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

private:

	TMMFAudioImaAdpcmToS16PcmCodec iImaAdpcmTo16Pcm;

private:

	TUint iChannels;

	TUint iSampleRate;

	TUint iBlockAlign;

	TUint iSamplesPerBlock;

	};

#endif //__MMF_BT_IMAADPCM_TO_PCM16_HW_DEVICE_H__