NFFTStrategy.java 文件源码

public void monitor(String query,final SerializedFingerprintsHandler handler){

    int samplerate = Config.getInt(Key.NFFT_SAMPLE_RATE);
    int size = Config.getInt(Key.MONITOR_STEP_SIZE) * samplerate;
    int overlap = Config.getInt(Key.MONITOR_OVERLAP) * samplerate;
    AudioDispatcher d ;
    if (query.equals(Panako.DEFAULT_MICROPHONE)){
        try {
            d = AudioDispatcherFactory.fromDefaultMicrophone(samplerate,size, overlap);
        } catch (LineUnavailableException e) {
            LOG.warning("Could not connect to default microphone!" + e.getMessage());
            e.printStackTrace();
            d = null;
        }
    }else{
        d = AudioDispatcherFactory.fromPipe(query, samplerate, size, overlap);
    }
    d.addAudioProcessor(new AudioProcessor() {
        @Override
        public boolean process(AudioEvent audioEvent) {
            double timeStamp = audioEvent.getTimeStamp() - Config.getInt(Key.MONITOR_OVERLAP);
            processMonitorQueryToSerializeFingerprints(audioEvent.getFloatBuffer().clone(), handler,timeStamp);
            return true;
        }

        @Override
        public void processingFinished() {
        }
    });
    d.run();
}