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 #ifndef Phonon_QT7_AUDIOOUTPUT_H

    19 #define Phonon_QT7_AUDIOOUTPUT_H

    20 

    21 #include <QtCore/QObject>

    22 #include <phonon/audiooutputinterface.h>

    23 #include <phonon/abstractaudiooutput.h>

    24 

    25 #include "medianode.h"

    26 #include "audionode.h"

    27 

    28 QT_BEGIN_NAMESPACE

    29 

    30 namespace Phonon

    31 {

    32 namespace QT7

    33 {

    34     class AudioOutputAudioPart : public QObject, AudioNode

    35     {

    36         Q_OBJECT

    37         public:

    38             AudioOutputAudioPart();

    39 

    40             void setVolume(float volume);

    41             float volume();

    42 

    43         protected:

    44             ComponentDescription getAudioNodeDescription() const;

    45             void initializeAudioUnit();

    46 

    47         signals:

    48             void volumeChanged(qreal newVolume);

    49             void audioDeviceFailed();

    50 

    51         private:

    52             friend class AudioOutput;

    53             qreal m_volume;

    54             AudioDeviceID m_audioDevice;

    55             void setAudioDevice(AudioDeviceID device);

    56     };

    57 

    58     class AudioOutput : public MediaNode, public AudioOutputInterface

    59     {

    60         Q_OBJECT

    61         Q_INTERFACES(Phonon::AudioOutputInterface)

    62 

    63         public:

    64             AudioOutput(QObject *parent = 0);

    65             ~AudioOutput();

    66 

    67             qreal volume() const;

    68             void setVolume(qreal);

    69             int outputDevice() const;

    70             bool setOutputDevice(int);

    71 

    72         signals:

    73             void volumeChanged(qreal newVolume);

    74             void audioDeviceFailed();

    75 

    76         protected:

    77             void mediaNodeEvent(const MediaNodeEvent *event);

    78 

    79         private:

    80             AudioOutputAudioPart *m_audioOutput;

    81             int m_device;

    82             bool m_redirectToMovie;

    83     };

    84 

    85 }} //namespace Phonon::QT7

    86 

    87 QT_END_NAMESPACE

    88 #endif // Phonon_QT7_AUDIOOUTPUT_H