1 /*

     2  * Copyright (c) 2010 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: Audio Effects handler

    15  *

    16  */

    17 

    18 #ifndef CPEAUDIOEFFECT_H

    19 #define CPEAUDIOEFFECT_H

    20 

    21 #include <e32base.h>

    22 #include <tmseffectobsrvr.h>

    23 

    24 namespace TMS {

    25 //FORWARD DECLARATIONS

    26 class TMSFactory;

    27 } //namespace TMS

    28 

    29 using namespace TMS;

    30 

    31 /**

    32  *  Starts and stops TMS audio streams.

    33  *  If the activation fails then there is a retry timer which

    34  *  will try the activation later.

    35  */

    36 NONSHARABLE_CLASS(CPEAudioEffect) : public CBase

    37     {

    38 public:

    39 

    40     /**

    41      * Two-phased constructing.

    42      */

    43     static CPEAudioEffect* NewL(TMSEffectObserver& aObserver);

    44 

    45     /**

    46      * Two-phased constructing.

    47      */

    48     static CPEAudioEffect* NewLC(TMSEffectObserver& aObserver);

    49 

    50     /**

    51      * C++ default destructor.

    52      */

    53     virtual ~CPEAudioEffect();

    54 

    55     /**

    56      * Set muted.

    57      */

    58     TInt SetMuteState(TBool aMute);

    59     /**

    60      * Get mute.

    61      */

    62     TBool MuteState() const;

    63 

    64     /**

    65      * Set volume.

    66      */

    67     void SetVolume(TInt aVolume);

    68 

    69     /**

    70      * Get volume.

    71      */

    72     TInt Volume() const;

    73 

    74 public:

    75     // Functions from base classes

    76 

    77 private:

    78 

    79     /**

    80      * C++ default constructor.

    81      */

    82     CPEAudioEffect();

    83 

    84     void ConstructL(TMSEffectObserver& aObserver);

    85 

    86 private:

    87     // data

    88     TMSFactory* iFactory;

    89     TMSEffect* iGlobalVol;

    90     TMSEffect* iGlobalGain;

    91     };

    92 

    93 #endif // CPEAUDIOEFFECT_H