// Copyright (c) 2003-2009 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:

 //

 class CWavDecodeUtility: public CBase

 	{

 public:

 	static CWavDecodeUtility* NewL(TDesC8& aBuffer);

 	~CWavDecodeUtility();

 	inline TUint GetChannels(void) const  {return iChannels;};

 	inline TUint GetSampleRate(void) const {return iSampleRate;};

 	inline TUint GetBitsPerSample(void) const {return iBitsPerSample;};

 	inline TUint GetDataLength(void) const {return iDataLength;};

 	inline TUint GetSamples(void) const {return iDataLength / (iChannels * iBitsPerSample / 8);};

 private:

 	CWavDecodeUtility();

 	void ConstructL(TDesC8& aBuffer);

 	TUint16 Read16(const TUint8* aPtr);

 	TUint32 Read32(const TUint8* aPtr);

 	void FindRiffChunksL(void);

 	void ProcessFormatHeaderL();

 	void ReadChunk(TMdaRiffChunk* aChunk);

 	void AssignChunkTo(TMdaRiffChunk* aAssignedChunk);

 private:

 //	CMMFDataBuffer* iBuffer;

 	TDesC8* iBuffer;

 	const TUint8* iStartPtr;

 	TUint iLastReadPosition;

 	TBool iHasFactChunk;

 	TMdaRiffChunk iCurrent;

 	TMdaRiffChunk iFormatChunk;

 	TMdaRiffChunk iFactChunk;

 	TMdaRiffChunk iDataChunk;

 	TUint iRiffChunkLength;

 	TBool iFoundChunks;

 	TBool iDone;

 	TUint iStartPosition;

 	TUint iCodecId;

 	TUint iChannels;

 	TUint iSampleRate;

 	TUint iBlockAlign;				//needed for correct IMA

 	TUint iBitsPerSample;

 	TUint iDataLength;

 	TUint iAverageBytesPerSecond;	//needed for correct IMA

 	TUint iSamplesPerBlock;

 	TUint iPos;

 	TUint iClipLength;

 	};