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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
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