/*

* Copyright (c) 2004-2007 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:    Provides a UL datapath

*

*/

#ifndef MCCULDATAPATH_H

#define MCCULDATAPATH_H

//  INCLUDES

#include "mccdatapathbase.h"

// FORWARD DECLARATIONS

class MMccResources;

// CLASS DECLARATION

/**

*  Mcc UL Datapath declaration

*

*  @lib Mccsubthreads.lib

*  @since Series 60 3.0

*/

NONSHARABLE_CLASS( CMccUlDataPath ) : public CMccDataPathBase

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        static CMccUlDataPath* NewL( MAsyncEventHandler* aEventHandler, 

                                     MMccResources* aMccResources,

                                     TMediaId aMediaId );

        /**

        * Destructor.

        */

		virtual ~CMccUlDataPath();

    public: // New functions

        /**

        * Negotiates the source and sink

        * @since Series 60 3.0

        * @param aDataSink Sink to be negotiated with

        * @return void

        */

        // Silencing PC-lint warning due to CMccUlDataPath::NegotiateL

        // hiding MDataSink::NegotiateL.

        /*lint -e1411 */

        void NegotiateL( MDataSink& aDataSink );

        /*lint +e1411 */

        /**

        * Loads codec

        */

        void LoadL( MDataSink& aDataSink );

    public: // Functions from baseclasses

        /**

        * From MDataSource

        */

        void BufferEmptiedL( CMMFBuffer* aBuffer );

        /**

        * From MDataSink

        */

        void BufferFilledL( CMMFBuffer* aBuffer );

        /**

        * From CMccDataPathBase

        */

        void PrimeL( TUint32 aEndpointId );

        /**

        * From CMccDataPathBase

        */

        void PlayL( TUint32 aEndpointId );

        /**

        * From CMccDataPathBase

        */

        void PauseL( TUint32 aEndpointId );

        /**

        * From CMccDataPathBase

        */

        void StopL( TUint32 aEndpointId );

        /**

        * From CMccDataPathBase

        */

        void ResumeL( TUint32 aEndpointId );

        /**

        * From CMccDataPathBase

        */

        void FillSourceBufferL();

        /**

        * From CMccDataPathBase

        */

        void EmptySinkBufferL();

    private:    // Functions from baseclasses

        /**

        * From CMccDataPathBase

        */

        void DoEndOfDataL();

    private: // Constructors

        /**

        * C++ default constructor.

        */

        CMccUlDataPath( MAsyncEventHandler* aEventHandler, 

                        MMccResources* aMccResources,

                        TMediaId aMediaId  );

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL();

    private:    // New functions

        void ActivateSinkBuffer();

    private:    // Friend classes

        #ifdef TEST_EUNIT

        friend class UT_CMccUlDataPath;

        #endif

    };

#endif      // MCCULDATAPATH_H

// End of File