// 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__