// 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