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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 overidden 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 |