// Copyright (c) 2005-2009 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 PULOADER_H

#define PULOADER_H

#include <mdf/mdfpuloader.h>

class TFourCC;

/*

ECom plugin for the utility class used by the HwDevice to load Processing Units.

*/

class CPuLoader : public CMdfPuLoader

	{

public:

	static CPuLoader* NewL();

	CMdfProcessingUnit* LoadProcessingUnitL(const MMdfProcessingUnitObserver& aProcessingUnitObserver, 

		TUid aImplementationUid);   

	CMdfProcessingUnit* LoadProcessingUnitL( const MMdfProcessingUnitObserver& aProcessingUnitObserver, 

		TFourCC aSrcDataType, TFourCC aDestDataType);

	CMdfProcessingUnit* LoadProcessingUnitL( const MMdfProcessingUnitObserver& aProcessingUnitObserver, 

		const TDesC8& aSrcDataType, const TDesC8& aDestDataType, const TUid& aImplementationType);

	TInt TunnelSetup(MMdfOutputPort& aOutputPort, MMdfInputPort& aInputPort);

	void UnloadProcessingUnit(CMdfProcessingUnit*& aPu);

	virtual ~CPuLoader();

protected:

	CPuLoader();

	/**

	Standard ConstructL() method.

	*/

	void ConstructL();

	};

#endif // PULOADER_H