/*  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_AudioConnection_H

#define Phonon_QT7_AudioConnection_H

#include <QtCore/QObject>

#include "backendheader.h"

#include <AudioToolbox/AudioToolbox.h>

#include <AudioUnit/AudioUnit.h>

QT_BEGIN_NAMESPACE

namespace Phonon

{

namespace QT7

{

    class MediaNode;

    class AudioNode;

    class AudioGraph;

    class AudioConnection {

    public:

        AudioConnection();

        AudioConnection(MediaNode *sink);

        AudioConnection(MediaNode *source, int output, MediaNode *sink, int input);

        AudioConnection(AudioNode *sink);

        AudioConnection(AudioNode *source, int output, AudioNode *sink, int input);

        ~AudioConnection();

        bool connect(AudioGraph *graph);

        bool disconnect(AudioGraph *graph);

        bool updateStreamSpecification();

        bool isBetween(MediaNode *source, MediaNode *sink);

        bool isValid();

        bool isSinkOnly();

        void freeMemoryAllocations();

        void invalidate();

        MediaNode *m_source;

        AudioNode *m_sourceAudioNode;

        int m_sourceOutputBus;

        MediaNode *m_sink;

        AudioNode *m_sinkAudioNode;

        int m_sinkInputBus;

        AudioChannelLayout *m_sourceChannelLayout;

    	UInt32 m_sourceChannelLayoutSize;

        AudioChannelLayout *m_sinkChannelLayout;

    	UInt32 m_sinkChannelLayoutSize;

        AudioStreamBasicDescription m_sourceStreamDescription;

        AudioStreamBasicDescription m_sinkStreamDescription;

        bool m_hasSourceSpecification;

        bool m_hasSinkSpecification;

        bool m_connected;

    };

}} // namespace Phonon::QT7

QT_END_NAMESPACE

#endif // Phonon_QT7_AudioConnection_H