/*  This file is part of the KDE project.

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

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

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

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

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

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    GNU Lesser General Public License for more details.

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

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

*/

#ifndef Phonon_GSTREAMER_DEVICEMANAGER_H

#define Phonon_GSTREAMER_DEVICEMANAGER_H

#include "common.h"

#include <phonon/audiooutputinterface.h>

#include <QtCore/QObject>

#include <QtCore/QTimer>

#include <gst/gst.h>

QT_BEGIN_NAMESPACE

namespace Phonon {

namespace Gstreamer {

class Backend;

class DeviceManager;

class AbstractRenderer;

class VideoWidget;

class AudioDevice {

public :

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

    int id;

    QByteArray gstId;

    QByteArray description;

    QString icon;

};

class DeviceManager : public QObject {

    Q_OBJECT

public:

    DeviceManager(Backend *parent);

    virtual ~DeviceManager();

    const QList<AudioDevice> audioOutputDevices() const;

    GstPad *requestPad(int device) const;

    int allocateDeviceId();

    int deviceId(const QByteArray &gstId) const;

    const QByteArray gstId(int id);

    AudioDevice* audioDevice(int id);

    GstElement *createGNOMEAudioSink(Category category);

    GstElement *createAudioSink(Category category = NoCategory);

    AbstractRenderer *createVideoRenderer(VideoWidget *parent);

signals:

    void deviceAdded(int);

    void deviceRemoved(int);

public slots:

    void updateDeviceList();

private:

    bool canOpenDevice(GstElement *element) const;

    Backend *m_backend;

    QList <AudioDevice> m_audioDeviceList;

    int m_audioDeviceCounter;

    QTimer m_devicePollTimer;

    QByteArray m_audioSink;

    QByteArray m_videoSinkWidget;

};

}

} // namespace Phonon::Gstreamer

QT_END_NAMESPACE

#endif // Phonon_GSTREAMER_DEVICEMANAGER_H