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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_AudioNode_H
#define Phonon_QT7_AudioNode_H
#include <QtCore/QObject>
#include "backendheader.h"
#include "audioconnection.h"
#include <AudioToolbox/AudioToolbox.h>
#include <AudioUnit/AudioUnit.h>
QT_BEGIN_NAMESPACE
namespace Phonon
{
namespace QT7
{
class AudioGraph;
class MediaNodeEvent;
class MediaNode;
class MediaNodeConnection{
MediaNode *source;
MediaNode *sink;
int inputPort;
int outputPort;
};
class AudioNode
{
public:
enum ConnectionSide {Source, Sink};
AudioNode(int maxInput, int maxOutput);
virtual ~AudioNode();
virtual void createAndConnectAUNodes();
virtual void createAudioUnits();
virtual void setGraph(AudioGraph *audioGraph);
virtual AUNode getInputAUNode();
virtual AUNode getOutputAUNode();
virtual bool fillInStreamSpecification(AudioConnection *connection, ConnectionSide side);
virtual bool setStreamSpecification(AudioConnection *connection, ConnectionSide side);
void notify(const MediaNodeEvent *event);
virtual void mediaNodeEvent(const MediaNodeEvent *event);
Float64 getTimeInSamples(int timeProperty);
AudioGraph *m_audioGraph;
AudioConnection *m_lastConnectionIn;
int m_maxInputBusses;
int m_maxOutputBusses;
protected:
AUNode m_auNode;
AudioUnit m_audioUnit;
// Only the following methods needs to
// be overridden by only_one-audio-unit nodes:
virtual ComponentDescription getAudioNodeDescription() const;
virtual void initializeAudioUnit();
private:
bool setStreamHelp(AudioConnection *c, int bus, OSType scope, bool fromSource);
};
}} // namespace Phonon::QT7
QT_END_NAMESPACE
#endif // Phonon_QT7_AudioNode_H
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