/*  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_QT7_MediaNode_H

#define Phonon_QT7_MediaNode_H

#include <QtCore/QObject>

#include "backendheader.h"

#include "medianodeevent.h"

#include "audioconnection.h"

#include "videoframe.h"

QT_BEGIN_NAMESPACE

namespace Phonon

{

namespace QT7

{

    class AudioNode;

    class AudioGraph;

    class MediaObject;

    class AudioConnection;

    class MediaNode : public QObject

    {

        Q_OBJECT

        public:

            enum NodeDescriptionEnum {

                AudioSource     = 1,

                AudioSink       = 2,

                VideoSource     = 4,

                VideoSink       = 8,

                AudioGraphNode  = 16

            };

            Q_DECLARE_FLAGS(NodeDescription, NodeDescriptionEnum);

            MediaNode(NodeDescription description, QObject *parent);

            MediaNode(NodeDescription description, AudioNode *audioPart, QObject *parent);

            virtual ~MediaNode();

            void setAudioNode(AudioNode *audioPart);

            bool connectToSink(MediaNode *sink);

            bool disconnectToSink(MediaNode *sink);

            AudioConnection *getAudioConnectionToSink(MediaNode *sink);

            void notify(const MediaNodeEvent *event, bool propagate = true);

            void sendEventToSinks(const MediaNodeEvent *event);

            virtual void mediaNodeEvent(const MediaNodeEvent *event);

            virtual void updateVideo(VideoFrame &frame);

            AudioGraph *m_audioGraph;

            AudioNode *m_audioNode;

            QList<AudioConnection *> m_audioSinkList;

            QList<AudioConnection *> m_audioSourceList;

            QList<MediaNode *> m_videoSinkList;

            int availableAudioInputBus();

            int availableAudioOutputBus();

            NodeDescription m_description;

            MediaObject *m_owningMediaObject;

    };

    Q_DECLARE_OPERATORS_FOR_FLAGS(MediaNode::NodeDescription);

}} // namespace Phonon::QT7

QT_END_NAMESPACE

#endif // Phonon_QT7_MediaNode_H