// 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:

// include\mmf\src\plugin\Hwdevice\audio\pcm16ToPcm16HwDevice.h

// 

//

#ifndef __MMF_PCM16_TO_PCM16_HW_DEVICE_H__

#define __MMF_PCM16_TO_PCM16_HW_DEVICE_H__

#include <mmf/server/mmfswcodecwrapper.h>

#ifdef SYMBIAN_MDF_SHAREDCHUNK_SOUNDDRIVER

	#include "mdasoundadapter.h"

#else

	#include <mdasound.h>

#endif

#include "../../swcodecwrapper/mmfswaudioinput.h"

#include "../../swcodecwrapper/mmfSwCodecDataPath.h"

// for the bitrate custom interface

#include <mmf/server/devsoundstandardcustominterfaces.h>

//note we need to keep this buffer at 8K as the tone utility expects 8K

const TInt KPCM16ToPCM16BufferSize = 0x2000;

const TInt KDevSoundMinFrameSize = 0x800; //2K

const TInt KDevSoundMaxFrameSize = 0x4000;  //16K

const TInt KDevSoundDeltaFrameSize = 0x800; //2K

const TInt KDevSoundFramesPerSecond = 4;

/*

*

* class CMMFPcm16ToPcm16HwDevice

*

*/

class CMMFPcm16ToPcm16HwDevice : public CMMFSwCodecWrapper,

								 public MMMFDevSoundCustomInterfaceBitRate

	{

public:

	static  CMMFPcm16ToPcm16HwDevice* NewL();

	virtual CMMFSwCodec& Codec();

	virtual TAny* CustomInterface(TUid aInterfaceId);

	~CMMFPcm16ToPcm16HwDevice(); 

	TUint CalculateBufferSize();

private:

	// from MMMFDevSoundCustomInterfaceBitRate

	virtual void GetSupportedBitRatesL(RArray<TInt>& aSupportedBitRates);

	virtual TInt BitRateL();

	virtual void SetBitRateL(TInt aBitRate);

	void BitRatesFromSampleRatesL(RArray<TInt>& aSupportedBitRates, const RArray<TInt>& aSupportedSampleRates);

	void ConstructL();

	};

/*

*

* class CMMFPcm16ToPcm16Codec converts Pcm16 to pcm16

*

*/

class CMMFPcm16ToPcm16Codec : public CMMFSwCodec

	{

public:

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

//	virtual TUint SourceBufferSize() {return KPCM16ToPCM16BufferSize;};

//	virtual TUint SinkBufferSize() {return KPCM16ToPCM16BufferSize;};

	virtual TUint SourceBufferSize();

	virtual TUint SinkBufferSize();

	virtual TBool IsNullCodec() {return ETrue;};

	void SetHwDevice(CMMFPcm16ToPcm16HwDevice* aHwDevice);

private:

	TUint iBufferSize;

	CMMFPcm16ToPcm16HwDevice* iHwDevice;

	};

#endif //__MMF_PCM16_TO_PCM16_HW_DEVICE_H__