!7

import static x30_pkg.x30_util.VF1;

sclass AudioInput > DynPrintLog {
  int bufSize = 40960;
  transient recordToAudioListeners_AudioLoop loop;
  transient SimpleLiveValue<Float> lvVolume = floatLiveValue(); // in percent
  L<VF1<short[]>> audioListeners = synchroList();
  
  visualize {
    ret centerAndSouthWithMargins(super.visualize(),
      jCenteredLine(jLiveValueLabel(mapLiveValue(func(float volume) -> S { "Volume: " + iround(volume) + " %" }, S, lvVolume))));
  }

  start {
    ownTimer(loop = recordToAudioListeners(audioListeners, bufSize, lvVolume)).start();
  }
  
  // API
  
  void addAudioListener(VF1<short[]> l) { audioListeners.add(l); }
  void removeAudioListener(VF1<short[]> l) { audioListeners.remove(l); }
  
  AudioFormat getAudioFormat() { ret javaSound_cdQuality(); }
}