/*

* Copyright (c) 2004-2009 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 LOGICALAUDIOCODEC_H

#define LOGICALAUDIOCODEC_H

#include <e32base.h>

#include <a3f/a3f_trace_utils.h>

#include <a3f/a3fbase.h>

#include <a3f/maudiocodec.h>

#include "componentparameters.h"

#include "audioprocessingunit.h"

#include "mconfigurationhelper.h"

// Remove when the MMRC server is ready

#include "maudiocodecadaptationobserver.h"

class MLogicalSettingObserver;

class MAudioProcessingUnitObserver;

class MConfigurationHelper;

/**

	This is the reference implementation of MAudioCodec API.

	@lib logicalaudiocodec.lib

 */

NONSHARABLE_CLASS(CLogicalAudioCodec) : public CAudioProcessingUnit,

										public MAudioCodec,

										public MAudioCodecAdaptationObserver

	{

friend class CAudioContext;

friend class CLogicalAudioStream;

public:

	/**

	Create a new instance.

	*/

	static CLogicalAudioCodec* NewL(TAny* aParam);

	/**

	Destructor.

	Deletes all objects and releases all resource owned by this instance.

	*/

	virtual ~CLogicalAudioCodec();

	// from base class MAudioCodec

	TInt SetFormat(TUid aFormat);

	TInt SetSampleRate(TInt aSampleRate);

	TInt SetMode(TUid aMode);

	TInt GetSupportedSamplesRates(RArray<TInt>& aSupportedRates);

	TInt GetSupportedModes(RArray<TUid>& aSupportedModes);

	TInt RegisterAudioCodecObserver(MAudioCodecObserver& aObserver);

	void UnregisterAudioCodecObserver(MAudioCodecObserver& aObserver);

	// Override just this

	TBool IsTypeOf(TUid aTypeId) const;

	TAny* Interface(TUid aType);

	// from MAudioCodecAdaptationObserver

	void AllBuffersProcessed();

	void ProcessingUnitError(TInt aError);

	void GetSupportedAModesComplete(TInt aError);

	void GetSupportedARatesComplete(TInt aError);

private:

	/**

	Second phase constructor

	*/

	void ConstructL();

	/**

	Constructor

	*/

	CLogicalAudioCodec(TAny* aParam);

protected: // data

	// Format uid

	TUid	iFormat;

	TInt				iSampleRateConfig;

	TUid				iModeConfig;

	RPointerArray<MAudioCodecObserver> iAudioCodecObserver;

	MConfigurationHelper*		iAdaptationStream;

	};

#endif // LOGICALAUDIOCODEC_H