/*

* Copyright (c) 2002 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:  Base class for RateControl implementations.

*

*/

#ifndef CMMARATECONTROL_H

#define CMMARATECONTROL_H

// EXTERNAL INCLUDES

//  INTERNAL INCLUDES

#include "cmmacontrol.h" // base class

// CONSTANTS

static const TInt KMMADefaultRate = 100000;

static const TInt KMMAMinRate = 0;

// Constant for control name. Name is used in Java side to instantiate

// Java Class which uses CMMARateControl.

_LIT(KMMARateControlName, "RateControl");

//  CLASS DECLARATION

/**

*   This class is the base class for RateControl implementations.

*

*

*/

NONSHARABLE_CLASS(CMMARateControl): public CMMAControl

{

public:

    /**

     * Destructor.

     */

    ~CMMARateControl();

protected:

    /**

     * Constructor.

     */

    CMMARateControl();

public: // From CMMAControl

    virtual const TDesC& ClassName() const;

public: // New methods

    /**

     * @param aRate Rate to set in "milli-percentage"..

     * @return Actual rate set.

     */

    virtual TInt SetRateL(TInt aRate) = 0;

    /**

     * @return The current playback rate in "milli-percentage".

     */

    virtual TInt RateL() = 0;

    /**

     * @return The maximum rate supported.

     */

    virtual TInt MaxRateL();

    /**

     * @return The minimum rate supported.

     */

    virtual TInt MinRateL();

};

#endif // CMMARATECONTROL_H