| 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_AUDIOGRAPH_H
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| 19 | #define Phonon_QT7_AUDIOGRAPH_H
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| 20 |
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| 21 | #include <AudioToolbox/AudioToolbox.h>
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| 22 | #include <AudioUnit/AudioUnit.h>
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| 23 |
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| 24 | #include <QtCore/qnamespace.h>
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| 25 | #include "audioconnection.h"
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| 26 | #include "medianode.h"
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| 27 |
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| 28 | QT_BEGIN_NAMESPACE
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| 29 |
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| 30 | namespace Phonon
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| 31 | {
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| 32 | namespace QT7
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| 33 | {
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| 34 | class AudioGraph : public MediaNode
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| 35 | {
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| 36 | public:
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| 37 | AudioGraph(MediaNode *root);
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| 38 | virtual ~AudioGraph();
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| 39 | AUGraph audioGraphRef();
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| 40 | void startAllOverFromScratch();
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| 41 |
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| 42 | bool openAndInit();
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| 43 | void start();
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| 44 | void tryStartGraph();
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| 45 | void stop();
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| 46 | void prepare();
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| 47 | void rebuildGraph();
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| 48 | void update();
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| 49 | bool isRunning();
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| 50 | void setPaused(bool pause);
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| 51 | bool graphCannotPlay();
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| 52 | void rebuildGraphIfNeeded();
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| 53 | void updateStreamSpecifications();
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| 54 | void setStatusCannotPlay();
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| 55 | MediaNode *root();
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| 56 | void notify(const MediaNodeEvent *event, bool propagate = true);
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| 57 |
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| 58 | private:
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| 59 | friend class MediaNode;
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| 60 | friend class AudioNode;
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| 61 |
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| 62 | void deleteGraph();
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| 63 | bool updateStreamSpecificationRecursive(AudioConnection *connection);
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| 64 | void createAndConnectAuNodesRecursive(AudioConnection *connection);
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| 65 | bool createAudioUnitsRecursive(AudioConnection *connection);
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| 66 |
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| 67 | void connectLate(AudioConnection *connection);
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| 68 | void disconnectLate(AudioConnection *connection);
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| 69 |
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| 70 | int nodeCount();
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| 71 |
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| 72 | bool m_initialized;
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| 73 | bool m_startedLogically;
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| 74 | bool m_rebuildLater;
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| 75 | bool m_graphCannotPlay;
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| 76 | bool m_paused;
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| 77 |
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| 78 | AUGraph m_audioGraphRef;
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| 79 | MediaNode *m_root;
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| 80 | };
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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_AUDIOGRAPH_H
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