/*  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_BACKEND_H

#define PHONON_BACKEND_H

#include "phononds9_namespace.h"

#include <phonon/backendinterface.h>

#include <phonon/phononnamespace.h>

#include <QtCore/QList>

#include <QtCore/QMutex>

#include "compointer.h"

#include "backendnode.h"

QT_BEGIN_NAMESPACE

namespace Phonon

{

    namespace DS9

    {

        class AudioOutput;

        class MediaObject;

        typedef Phonon::ObjectDescriptionType ObjectDescriptionType;

        class Backend : public QObject, public Phonon::BackendInterface

        {

            Q_OBJECT

                Q_INTERFACES(Phonon::BackendInterface)

        public:

            Backend(QObject *parent = 0, const QVariantList & = QVariantList());

            virtual ~Backend();

            QObject *createObject(Phonon::BackendInterface::Class, QObject *parent, const QList<QVariant> &args);

            bool supportsVideo() const;

            QStringList availableMimeTypes() const;

            QList<int> objectDescriptionIndexes(Phonon::ObjectDescriptionType type) const;

            QHash<QByteArray, QVariant> objectDescriptionProperties(Phonon::ObjectDescriptionType type, int index) const;

            bool connectNodes(QObject *, QObject *);

            bool disconnectNodes(QObject *, QObject *);

            //transaction management

            bool startConnectionChange(QSet<QObject *>);

            bool endConnectionChange(QSet<QObject *>);

            Filter getAudioOutputFilter(int index) const;

            static QMutex *directShowMutex;

        Q_SIGNALS:

            void objectDescriptionChanged(ObjectDescriptionType);

        private:

            class AudioMoniker : public ComPointer<IMoniker>

            {

            public:

                bool operator==(const AudioMoniker &other);

            };

            mutable QVector<AudioMoniker> m_audioOutputs;

            mutable QVector<CLSID> m_audioEffects;

            mutable QMutex m_directShowMutex;

        };

    }

}

QT_END_NAMESPACE

#endif // PHONON_BACKEND_H