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_GSTREAMER_DEVICEMANAGER_H

    19 #define Phonon_GSTREAMER_DEVICEMANAGER_H

    20 

    21 #include "common.h"

    22 

    23 #include <phonon/audiooutputinterface.h>

    24 

    25 #include <QtCore/QObject>

    26 #include <QtCore/QTimer>

    27 

    28 #include <gst/gst.h>

    29 

    30 QT_BEGIN_NAMESPACE

    31 

    32 namespace Phonon {

    33 namespace Gstreamer {

    34 class Backend;

    35 class DeviceManager;

    36 class AbstractRenderer;

    37 class VideoWidget;

    38 

    39 class AudioDevice {

    40 public :

    41     AudioDevice(DeviceManager *s, const QByteArray &deviceId);

    42     int id;

    43     QByteArray gstId;

    44     QByteArray description;

    45 };

    46 

    47 class DeviceManager : public QObject {

    48     Q_OBJECT

    49 public:

    50     DeviceManager(Backend *parent);

    51     virtual ~DeviceManager();

    52     const QList<AudioDevice> audioOutputDevices() const;

    53     GstPad *requestPad(int device) const;

    54     int deviceId(const QByteArray &gstId) const;

    55     QByteArray deviceDescription(int id) const;

    56     GstElement *createGNOMEAudioSink(Category category);

    57     GstElement *createAudioSink(Category category = NoCategory);

    58     AbstractRenderer *createVideoRenderer(VideoWidget *parent);

    59 

    60 signals:

    61     void deviceAdded(int);

    62     void deviceRemoved(int);

    63 

    64 public slots:

    65     void updateDeviceList();

    66 

    67 private:

    68     bool canOpenDevice(GstElement *element) const;

    69     Backend *m_backend;

    70     QList <AudioDevice> m_audioDeviceList;

    71     QTimer m_devicePollTimer;

    72     QByteArray m_audioSink;

    73     QByteArray m_videoSinkWidget;

    74 };

    75 }

    76 } // namespace Phonon::Gstreamer

    77 

    78 QT_END_NAMESPACE

    79 

    80 #endif // Phonon_GSTREAMER_DEVICEMANAGER_H