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Published byLuis Cullen Modified over 11 years ago
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Java Media Framework
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Inhalt Java Media APIs Architektur Zeitmodell Manager Ereignismodell Datenmodell Control Controller Player Processor Plug-Ins Aufnahme RTP
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Java Media Framework Java Media APIs Sound API 2D API 3D API Animation API Advanced Imaging API Telephony API Speech API Shared Data Toolkit API
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Java Media Framework Architektur
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Java Media Framework Zeitmodell MediaTime = MediaStartTime + Abspielrate * (TimeBaseTime – TimeBaseStartTime)
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Java Media Framework Manager PackageManager CaptureDeviceManager PlugInManager
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Java Media Framework Ereignismodell Listener MediaEvent wie AWT/Swing
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Java Media Framework Datenmodell Datenquelle gemischte kopierbare Datensenke sink = manager.createDataSink(Datasource, MediaLocator); Formate af = new AudioFormat("ima4", 44100, 16, 2);
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Java Media Framework Control Interface Erlaubt Zugriff auf Attribute von Objekten getControlComponent()
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Java Media Framework Controller PlayerProcessor
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Java Media Framework Player – State-Chart
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Java Media Framework Player DataSource input = processor.getDataOutput() Player player = Manager.createPlayer(input); oder AudioFormat afs[] = new AudioFormat[1]; afs[0] = new AudioFormat("ima4", 44100, 16, 2); Manager.createRealizedProcessor(new ProcessorModel(input, afs, null));
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Java Media Framework Processor AudioFormat afs[] = new AudioFormat[1]; afs[0] = new AudioFormat("ima4", 44100, 16, 2); DataSource input = processor.getDataOutput() FileTypeDescriptor output = new FileTypeDescriptor(FileTypeDescriptor.MPEG_AUDIO); Manager.createRealizedProcessor(new ProcessorModel(input, afs, output));
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Java Media Framework Processor & Plug-Ins (De)Multiplexer Codecs Renderer Effekte
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Java Media Framework Processor – State-Chart
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Java Media Framework Aufnahme Aufnahmegerät mit Hilfe des CaptureDeviceManagers finden CaptureDeviceInfo-Objekt für dieses Gerät erstellen Datenquelle aus dem MediaLocator erzeugen Player oder Prozessor erzeugen, der diese Datenquelle nutzt Vector deviceList = CaptureDeviceManager.getDeviceList(new AudioFormat("linear", 44100, 16, 2)); deviceInfo = (CaptureDeviceInfo)deviceList.firstElement(); oder CaptureDeviceInfo deviceInfo = CaptureDeviceManager.getDevice("deviceName"); Player player = Manager.createPlayer(deviceInfo.getLocator());
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Java Media Framework Speichern von Daten DataSink sink; MediaLocator destination = new MediaLocator("file://myfile.wav"); sink = Manager.createDataSink(processor.getDataOutput(), destination); sink.open(); sink.start();
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Java Media Framework Real-time Transfer Protocol SessionManager RTP-Sitzung RTPEvents RTP-Daten MediaLocator rtp://address:port/content-type/[ttl]
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Java Media Framework Ende Ende – Fin – End
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