| 1 | /* This file is part of the KDE project.
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| 2 |
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| 3 | Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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| 4 |
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| 5 | This library is free software: you can redistribute it and/or modify
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| 6 | it under the terms of the GNU Lesser General Public License as published by
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| 7 | the Free Software Foundation, either version 2.1 or 3 of the License.
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| 8 |
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| 9 | This library is distributed in the hope that it will be useful,
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 12 | GNU Lesser General Public License for more details.
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| 13 |
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| 14 | You should have received a copy of the GNU Lesser General Public License
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| 15 | along with this library. If not, see <http://www.gnu.org/licenses/>.
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| 16 | */
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| 17 |
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| 18 | #ifndef Phonon_QT7_AudioNode_H
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| 19 | #define Phonon_QT7_AudioNode_H
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| 20 |
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| 21 | #include <QtCore/QObject>
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| 22 | #include "backendheader.h"
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| 23 | #include "audioconnection.h"
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| 24 | #include <AudioToolbox/AudioToolbox.h>
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| 25 | #include <AudioUnit/AudioUnit.h>
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| 26 |
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| 27 | QT_BEGIN_NAMESPACE
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| 28 |
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| 29 | namespace Phonon
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| 30 | {
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| 31 | namespace QT7
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| 32 | {
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| 33 | class AudioGraph;
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| 34 | class MediaNodeEvent;
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| 35 | class MediaNode;
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| 36 |
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| 37 | class MediaNodeConnection{
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| 38 | MediaNode *source;
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| 39 | MediaNode *sink;
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| 40 | int inputPort;
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| 41 | int outputPort;
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| 42 | };
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| 43 |
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| 44 | class AudioNode
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| 45 | {
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| 46 | public:
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| 47 | enum ConnectionSide {Source, Sink};
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| 48 |
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| 49 | AudioNode(int maxInput, int maxOutput);
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| 50 | virtual ~AudioNode();
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| 51 |
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| 52 | virtual void createAndConnectAUNodes();
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| 53 | virtual void createAudioUnits();
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| 54 | virtual void setGraph(AudioGraph *audioGraph);
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| 55 | virtual AUNode getInputAUNode();
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| 56 | virtual AUNode getOutputAUNode();
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| 57 | virtual bool fillInStreamSpecification(AudioConnection *connection, ConnectionSide side);
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| 58 | virtual bool setStreamSpecification(AudioConnection *connection, ConnectionSide side);
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| 59 | void notify(const MediaNodeEvent *event);
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| 60 |
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| 61 | virtual void mediaNodeEvent(const MediaNodeEvent *event);
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| 62 | Float64 getTimeInSamples(int timeProperty);
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| 63 |
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| 64 | AudioGraph *m_audioGraph;
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| 65 | AudioConnection *m_lastConnectionIn;
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| 66 |
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| 67 | int m_maxInputBusses;
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| 68 | int m_maxOutputBusses;
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| 69 |
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| 70 | protected:
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| 71 | AUNode m_auNode;
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| 72 | AudioUnit m_audioUnit;
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| 73 |
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| 74 | // Only the following methods needs to
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| 75 | // be overridden by only_one-audio-unit nodes:
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| 76 | virtual ComponentDescription getAudioNodeDescription() const;
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| 77 | virtual void initializeAudioUnit();
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| 78 |
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| 79 | private:
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| 80 | bool setStreamHelp(AudioConnection *c, int bus, OSType scope, bool fromSource);
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| 81 | };
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| 82 | }} // namespace Phonon::QT7
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| 83 |
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| 84 | QT_END_NAMESPACE
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| 85 |
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| 86 | #endif // Phonon_QT7_AudioNode_H
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