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+/* 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_BACKEND_H
+#define Phonon_GSTREAMER_BACKEND_H
+
+#include "common.h"
+#include "devicemanager.h"
+#include "medianode.h"
+
+#include <phonon/objectdescription.h>
+#include <phonon/backendinterface.h>
+
+#include <QtCore/QList>
+#include <QtCore/QPointer>
+#include <QtCore/QStringList>
+#include <QtCore/QTimer>
+
+#include <gst/gst.h>
+
+QT_BEGIN_NAMESPACE
+
+namespace Phonon
+{
+namespace Gstreamer
+{
+class AudioOutput;
+class MediaNode;
+class MediaObject;
+class EffectManager;
+
+class Backend : public QObject, public BackendInterface
+{
+ Q_OBJECT
+ Q_INTERFACES(Phonon::BackendInterface)
+
+public:
+
+ enum DebugLevel {NoDebug, Warning, Info, Debug};
+ Backend(QObject *parent = 0, const QVariantList & = QVariantList());
+ virtual ~Backend();
+
+ DeviceManager* deviceManager() const;
+ EffectManager* effectManager() const;
+
+ QObject *createObject(BackendInterface::Class, QObject *parent, const QList<QVariant> &args);
+
+ bool isValid() const;
+ bool supportsVideo() const;
+ QStringList availableMimeTypes() const;
+
+ QList<int> objectDescriptionIndexes(ObjectDescriptionType type) const;
+ QHash<QByteArray, QVariant> objectDescriptionProperties(ObjectDescriptionType type, int index) const;
+
+ bool startConnectionChange(QSet<QObject *>);
+ bool connectNodes(QObject *, QObject *);
+ bool disconnectNodes(QObject *, QObject *);
+ bool endConnectionChange(QSet<QObject *>);
+
+ DebugLevel debugLevel() const;
+
+ void addBusWatcher(MediaObject* node);
+ void removeBusWatcher(MediaObject* node);
+ void logMessage(const QString &message, int priority = 2, QObject *obj=0) const;
+ bool checkDependencies() const;
+
+Q_SIGNALS:
+ void objectDescriptionChanged(ObjectDescriptionType);
+
+private Q_SLOTS:
+ void handleBusMessage(Message);
+
+private:
+ static gboolean busCall(GstBus *bus, GstMessage *msg, gpointer data);
+ QList<QPointer<AudioOutput> > m_audioOutputs;
+
+ DeviceManager *m_deviceManager;
+ EffectManager *m_effectManager;
+ DebugLevel m_debugLevel;
+ bool m_isValid;
+};
+}
+} // namespace Phonon::Gstreamer
+
+QT_END_NAMESPACE
+
+#endif // Phonon_GSTREAMER_BACKEND_H