1 /*

     2 * Copyright (c) 2006 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 effect engine

    15 *

    16 */

    17 

    18 

    19 #ifndef _MPXAUDIOEFFECTENGINE_H_

    20 #define _MPXAUDIOEFFECTENGINE_H_

    21 #define _LOUDNESS

    22 //#undef _LOUDNESS

    23 //#define _BASSBOOST

    24 #undef _BASSBOOST

    25 #define _REVERB

    26 //#undef _REVERB

    27 #define _STEREO

    28 

    29 

    30 // INCLUDES

    31 const TInt KAudioEffectsID = 0x101FFC02;

    32 const TInt KEqualizerID = 0x101FFC76;

    33 

    34 // System Includes

    35 #include <e32base.h>

    36 #include <mdaaudiosampleplayer.h>

    37 

    38 #include <mpxplaybackobserver.h>

    39 #include "mpxaudioeffectproperties.h"

    40 

    41 // FORWARD DECLARATIONS

    42 class CMdaAudioPlayerUtility;

    43 class CEnvironmentalReverbUtility;

    44 class CStereoWidening;

    45 class CBassBoost;

    46 class CLoudness;

    47 class CAudioEqualizerUtility;

    48 

    49 class MMPXPlaybackUtility;

    50 class TMPXPlaybackMessage;

    51 

    52 /**

    53 *  Audio effect engine Class

    54 *

    55 *  @lib mpxaudioeffectengine.dll

    56 *  @since Series 60 3.0

    57 */

    58 class CMPXAudioEffectEngine : public CBase

    59 {

    60 public: 

    61 

    62     /**

    63     * Two-phased constructor

    64     *

    65     * @param aPlayer audio player utility

    66     * @return object of constructed

    67     */

    68 	IMPORT_C static CMPXAudioEffectEngine* NewL(

    69 	                                    CMdaAudioPlayerUtility* aPlayer);

    70 	

    71     /**

    72     * Destructor

    73     */

    74 	IMPORT_C ~CMPXAudioEffectEngine();

    75 	

    76     /**

    77     * Set balance

    78     */

    79  	IMPORT_C void SetBalanceL();

    80 

    81     /**

    82     * Set bass boost

    83     */

    84 	IMPORT_C void SetBassBoostL();

    85 

    86     /**

    87     * Set stero widening

    88     */

    89 	IMPORT_C void SetStereoWideningL();

    90 

    91     /**

    92     * Set reverberation

    93     */

    94  	IMPORT_C void SetReverberationL();

    95 

    96     /**

    97     * Set loundness

    98     */

    99     IMPORT_C void SetLoudnessL();

   100 

   101     /**

   102     * Sets the equalizer preset

   103     * This function will check MPX cenrep for preset id

   104     */

   105     IMPORT_C void SetEqualizerL();

   106     

   107     /**

   108      * Creates the audio effects

   109      */

   110     IMPORT_C void CreateAudioEffectsL();

   111 

   112     /**

   113     * Destroy audio effect objects

   114     */

   115     IMPORT_C void DestroyAudioEffect();

   116    

   117 private:

   118     /**

   119     * C++ constructor

   120     *

   121     * @param aPlayer audio player utility

   122     */

   123 	CMPXAudioEffectEngine(CMdaAudioPlayerUtility* aPlayer);

   124 

   125     /**

   126     * Second phase constructor

   127     */

   128     void ConstructL();

   129  

   130     /**

   131      *  Handle playback state changed.

   132      *

   133      *  @param aState New Playback state

   134      */

   135     void DoHandleStateChangedL(

   136         TMPXPlaybackState aState );

   137 

   138 private: //Data

   139 	

   140     CMPXAudioEffectProperties* iProp;

   141     

   142 private:

   143 	CMdaAudioPlayerUtility* iMdaPlayer;  // Not owned

   144 	

   145 	CEnvironmentalReverbUtility* iReverbEffect;

   146 	CStereoWidening* iStereoEffect;

   147 	CBassBoost* iBassBoostEffect;

   148 	CLoudness*  iLoudnessEffect;

   149 	CAudioEqualizerUtility* iEqualizerEffect;

   150 	};

   151 

   152 #endif // _MPXAUDIOEFFECTENGINE_H_

   153 

   154 // End of File