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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_QT7_AUDIOGRAPH_H
#define Phonon_QT7_AUDIOGRAPH_H
#include <AudioToolbox/AudioToolbox.h>
#include <AudioUnit/AudioUnit.h>
#include <QtCore/qnamespace.h>
#include "audioconnection.h"
#include "medianode.h"
QT_BEGIN_NAMESPACE
namespace Phonon
{
namespace QT7
{
class AudioGraph : public MediaNode
{
public:
AudioGraph(MediaNode *root);
virtual ~AudioGraph();
AUGraph audioGraphRef();
void startAllOverFromScratch();
bool openAndInit();
void start();
void tryStartGraph();
void stop();
void prepare();
void rebuildGraph();
void update();
bool isRunning();
void setPaused(bool pause);
bool graphCannotPlay();
void rebuildGraphIfNeeded();
void updateStreamSpecifications();
void setStatusCannotPlay();
MediaNode *root();
void notify(const MediaNodeEvent *event, bool propagate = true);
private:
friend class MediaNode;
friend class AudioNode;
void deleteGraph();
bool updateStreamSpecificationRecursive(AudioConnection *connection);
void createAndConnectAuNodesRecursive(AudioConnection *connection);
bool createAudioUnitsRecursive(AudioConnection *connection);
void connectLate(AudioConnection *connection);
void disconnectLate(AudioConnection *connection);
int nodeCount();
bool m_initialized;
bool m_startedLogically;
bool m_rebuildLater;
bool m_graphCannotPlay;
bool m_paused;
AUGraph m_audioGraphRef;
MediaNode *m_root;
};
}} // namespace Phonon::QT7
QT_END_NAMESPACE
#endif // Phonon_QT7_AUDIOGRAPH_H
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