// Copyright (c) 1997-2009 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 MMFIMAADPCMTOPCM16CODEC_H

#define MMFIMAADPCMTOPCM16CODEC_H

#include "MMFCodecBaseDefinitions.h"

#include <mmfcodec/mmfaudiocodecbase.h>

#include <mmf/server/devsoundstandardcustominterfaces.h>

const TUint KMaxImaAdpcmBlockAlign = 2048;

const TUint KImaAdpcmBitsPerSample = 4;

//mono so iImaAdpcmTo16Pcm constructed with 1 (mono)

class CMMFImaAdPcmPcm16Codec : public CMMFCodec, public MMMFDevSoundCustomInterfaceFileBlockLength

	{

public:

	static CMMFCodec* NewL(TAny* aInitParams);

	virtual ~CMMFImaAdPcmPcm16Codec();

	TCodecProcessResult ProcessL(const CMMFBuffer& aSrc, CMMFBuffer& aDst);

	void ConfigureL(TUid aConfigType, const TDesC8& aConfigData);

	// from MMMFDevSoundCustomInterfaceFileBlockLength

	void SetFileBlockLength(TUint aBlockAlign);

protected:

	virtual TInt Extension_(TUint aExtensionId, TAny*& aExtPtr, TAny*);	

private:

	CMMFImaAdPcmPcm16Codec();

	void ConstructL(TAny* aInitParams);

	virtual void ResetL();

private:

	//owned by the Datapath

	const CMMFDataBuffer* iSrc;

	CMMFDataBuffer* iDst;

	TUint iTempSrcBufferCount;

	TUint8* iTempSrcBufferPtr;

	TUint8 iTempSrcBuffer[KMaxImaAdpcmBlockAlign];

	TMMFImaAdpcmTo16PcmCodecOld iImaAdpcmTo16Pcm ;

	TUint iLastFrameNumber;

	// allow configuring sample rate

	TUint iChannels;

	TUint iSamplesRate;

	TUint iSamplesPerBlock;

	TUint iBlockAlign;

	};

#endif