/*

* Copyright (c) 2006 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:  Header of StreamControl interface.

*

*/

#ifndef STREAMCONTROL_H

#define STREAMCONTROL_H

#include <e32base.h>

#include <Control.h>

#include <MCustomInterface.h>

namespace multimedia

    {

    // Forward declaration

    class MSourceControl;

    class MSinkControl;

    class MEffectControl;

    // Uid identifying Stream Control

    const TUid KStreamControl = {0x10207B44};

    // Class declaration

    class MStreamControl : public MControl, public MCustomInterface

        {

        public:

            enum TStreamState

                {

                CLOSED,

                INITIALIZED,

                PRIMED,

                EXECUTING,

                BUFFERING,

                PAUSED

                };

        public:

            // Config msgs

            virtual TInt AddSource( MSourceControl& aSource ) = 0;

            virtual TInt RemoveSource( MSourceControl& aSource ) = 0;

            virtual TInt AddSink( MSinkControl& aSink ) = 0;

            virtual TInt RemoveSink( MSinkControl& aSink ) = 0;

            virtual TInt AddEffect( MEffectControl& aEffect ) = 0;

            virtual TInt RemoveEffect( MEffectControl& aEffect ) = 0;

            virtual TInt SetPosition( TInt64& aPos ) = 0;

            virtual TInt SetPriority( TInt aPriority, TInt aPreference ) = 0;

            // Query msgs

            virtual TInt GetDuration( TInt64& aDuration ) = 0;

            virtual TInt GetPosition( TInt64& aPos) = 0;

            virtual TInt GetSeekingSupport( TBool& aFlag ) = 0;

            virtual TInt GetRandomSeekingSupport( TBool& aFlag ) = 0;

            virtual TStreamState GetState() = 0;

            virtual TAny* CustomInterface( TUid aCIUid ) = 0;

            // Control msg

            virtual TInt Open() = 0;

            virtual TInt Prime() = 0;

            virtual TInt Start() = 0;

            virtual TInt Pause() = 0;

            virtual TInt Stop() = 0;

            virtual TInt Close() = 0;

        };

    } // namespace multimedia

#endif // STREAMCONTROL_H

// End of file