1 /*

     2 * Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  This class implements RateControl for MMF players.

    15 *

    16 */

    17 

    18 

    19 #ifndef CMMAMMFRATECONTROL_H

    20 #define CMMAMMFRATECONTROL_H

    21 

    22 //  INTERNAL INCLUDES

    23 #include "cmmaratecontrol.h" // base class

    24 #include "cmmammfplayerbase.h"

    25 

    26 //  CLASS DECLARATION

    27 /**

    28 *   This class implements RateControl for MMF players.

    29 *

    30 */

    31 NONSHARABLE_CLASS(CMMAMMFRateControl): public CMMARateControl,

    32         public MMMAPlayerStateListener

    33 {

    34 public:

    35 

    36     static CMMAMMFRateControl* NewL(CMMAMMFPlayerBase* aPlayer);

    37 

    38     /**

    39      * Destructor.

    40      */

    41     ~CMMAMMFRateControl();

    42 

    43 protected:

    44 

    45     /**

    46      * Constructor.

    47      */

    48     CMMAMMFRateControl(CMMAMMFPlayerBase* aPlayer);

    49 

    50     void ConstructL();

    51 

    52 public: // from MMMAPlayerStateListener

    53     virtual void StateChanged(TInt aState);

    54 

    55 public: // New methods

    56     /**

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

    58      * @return Actual rate set.

    59      */

    60     virtual TInt SetRateL(TInt aRate);

    61 

    62     /**

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

    64      */

    65     virtual TInt RateL();

    66 

    67 

    68 private: // Member data

    69 

    70     /**

    71      * Used to obtain RMMFController reference to stop/start

    72      * playback.

    73      */

    74     CMMAMMFPlayerBase* iPlayer;

    75 

    76     /**

    77      * Hold current rate value.

    78      */

    79     TInt iCurrentRate;

    80 

    81 };

    82 

    83 #endif // CMMAMMFRATECONTROL_H