src/3rdparty/phonon/gstreamer/devicemanager.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 06 Jul 2010 15:10:48 +0300
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/*  This file is part of the KDE project.
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    Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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    This library is free software: you can redistribute it and/or modify
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    it under the terms of the GNU Lesser General Public License as published by
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    the Free Software Foundation, either version 2.1 or 3 of the License.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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    GNU Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public License
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    along with this library.  If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef Phonon_GSTREAMER_DEVICEMANAGER_H
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#define Phonon_GSTREAMER_DEVICEMANAGER_H
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#include "common.h"
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#include <phonon/audiooutputinterface.h>
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#include <QtCore/QObject>
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#include <QtCore/QTimer>
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#include <gst/gst.h>
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QT_BEGIN_NAMESPACE
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namespace Phonon {
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namespace Gstreamer {
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class Backend;
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class DeviceManager;
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class AbstractRenderer;
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class VideoWidget;
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class AudioDevice {
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public :
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    AudioDevice(DeviceManager *s, const QByteArray &deviceId);
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    int id;
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    QByteArray gstId;
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    QByteArray description;
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    QString icon;
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};
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class DeviceManager : public QObject {
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    Q_OBJECT
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public:
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    DeviceManager(Backend *parent);
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    virtual ~DeviceManager();
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    const QList<AudioDevice> audioOutputDevices() const;
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    GstPad *requestPad(int device) const;
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    int allocateDeviceId();
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    int deviceId(const QByteArray &gstId) const;
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    const QByteArray gstId(int id);
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    AudioDevice* audioDevice(int id);
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    GstElement *createGNOMEAudioSink(Category category);
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    GstElement *createAudioSink(Category category = NoCategory);
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    AbstractRenderer *createVideoRenderer(VideoWidget *parent);
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signals:
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    void deviceAdded(int);
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    void deviceRemoved(int);
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public slots:
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    void updateDeviceList();
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private:
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    bool canOpenDevice(GstElement *element) const;
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    Backend *m_backend;
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    QList <AudioDevice> m_audioDeviceList;
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    int m_audioDeviceCounter;
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    QTimer m_devicePollTimer;
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    QByteArray m_audioSink;
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    QByteArray m_videoSinkWidget;
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};
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}
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} // namespace Phonon::Gstreamer
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QT_END_NAMESPACE
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#endif // Phonon_GSTREAMER_DEVICEMANAGER_H