/*

* 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_PCMU8_HW_DEVICE_H__

#define __MMF_PCM16_TO_PCMU8_HW_DEVICE_H__

#include <mmf/server/mmfswcodecwrapper.h>

#include "MMFAudioCodec.h"

#include <mmfcodec/mmfaudios16tou8pcmcodec.h>

const TInt KPCM16ToPCMU8SourceBufferSize = 0x2000;

const TInt KPCM16ToPCMU8SinkBufferSize = 0x1000; //sink buffer length is half source

/*

*

* class CMMFPcm16ToPcmU8HwDevice

*

*/

class CMMFPcm16ToPcmU8HwDevice : public CMMFSwCodecWrapper

	{

public:

	static  CMMFPcm16ToPcmU8HwDevice* NewL();

	virtual CMMFSwCodec& Codec();

	~CMMFPcm16ToPcmU8HwDevice(); 

private:

	void ConstructL();

	};

/*

*

* class CMMFPcm16ToPcmU8Codec converts Pcm16 to Pcm unsigned 8 bit

*

*/

class CMMFPcm16ToPcmU8Codec : public CMMFSwCodec

	{

public:

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

	virtual TUint SourceBufferSize() {return KPCM16ToPCMU8SourceBufferSize;};

	virtual TUint SinkBufferSize() {return KPCM16ToPCMU8SinkBufferSize;};

private:

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

private:

	TMMFAudioS16ToU8PcmCodec iAudioS16ToU8Pcm ;

	};

#endif //__MMF_PCMS16_TO_PCMS8_HW_DEVICE_H__