1 /*  This file is part of the KDE project.

     2 

     3 Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 

     5 This library is free software: you can redistribute it and/or modify

     6 it under the terms of the GNU Lesser General Public License as published by

     7 the Free Software Foundation, either version 2.1 or 3 of the License.

     8 

     9 This library is distributed in the hope that it will be useful,

    10 but WITHOUT ANY WARRANTY; without even the implied warranty of

    11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    12 GNU Lesser General Public License for more details.

    13 

    14 You should have received a copy of the GNU Lesser General Public License

    15 along with this library.  If not, see <http://www.gnu.org/licenses/>.

    16 

    17 */

    18 

    19 #ifndef PHONON_MMF_AUDIOEQUALIZER_H

    20 #define PHONON_MMF_AUDIOEQUALIZER_H

    21 

    22 #include <AudioEqualizerBase.h>

    23 #include "abstractaudioeffect.h"

    24 

    25 QT_BEGIN_NAMESPACE

    26 

    27 namespace Phonon

    28 {

    29 namespace MMF

    30 {

    31 /**

    32  * @short A classic equalizer.

    33  *

    34  * The equalizer has a number of bands, and each band has a frequency, and a

    35  * volume. With Phonon's API, this is modeled such that each band is one

    36  * Phonon::EffectParameter, where Phonon::EffectParameter::id() is the band

    37  * number, and the setting is the volume level.

    38  */

    39 class AudioEqualizer : public AbstractAudioEffect

    40 {

    41     Q_OBJECT

    42 public:

    43     AudioEqualizer(QObject *parent);

    44 

    45 protected:

    46     virtual void parameterChanged(const int id,

    47                                   const QVariant &value);

    48 

    49     virtual bool activateOn(CPlayerType *player);

    50 

    51 private:

    52     static QList<EffectParameter> createParams();

    53     QScopedPointer<CAudioEqualizer> m_bassBoost;

    54 };

    55 }

    56 }

    57 

    58 QT_END_NAMESPACE

    59 

    60 #endif

    61