!7

static JButton button;
static volatile Capturer cap;
static File wavFile;

p-substance {
  showControls(jCenteredLine(button = jbutton("Record!", f recordOrStop)));
}

svoid recordOrStop {
  if (cap != null) {
    cap.stop();
    byte[] pcm = cap.getPCM();
    infoMessage("Got " + l(pcm) + " bytes PCM!");
    pcmToWAVE(pcm, cap.format(), wavFile);
    infoBox("Wrote " + f2s(wavFile) + " (" + wavFile.length() + " bytes)");
    cap = null;
    setText(button, "Record!");
  } else {
    AudioLine line = first(allTargetDataLines());
    assertNotNull("Need audio input line!", line);
    DataLine dataLine = cast line.open();
    print("Capturing");
    wavFile = prepareProgramFile(ymd_minus_hms() + ".wav");
    cap = captureAudioFromLine2(dataLine, sphinxAudioFormat());
    setText(button, "Stop");
  }
}