!7

lib 1400132 // spectro edit compiled for Java 8

import net.bluecow.spectro.Clip;

p-exp {
  File mp3 = william_silent("hello");
  File wav = programFile("hello.wav");
  if (!wav.exists())
    mp3ToWAV_jave(mp3, wav);
    
  Clip clip = Clip.newInstance(wav);
  
  int w = clip.getFrameCount(), h = clip.getFrameFreqSamples();
  int h2 = min(h, 250);
  BWImage img = new(w, h2);
  
  Rectangle region = new(0, 0, w, h);
  toClipCoords(region, clip);
        
  int endCol = region.x + region.width;
  int endRow = min(region.y + region.height, h2);
  
  print("y=" + region.y + " to " + endRow);
        
  for (int col = region.x; col < endCol; col++) {
    net.bluecow.spectro.Frame f = clip.getFrame(col);
    for (int row = region.y; row < endRow; row++)
      img.setPixel(col, h2-1-row, (float) f.getReal(row));
  }
  
  showBWImage(img);
}

svoid toClipCoords(Rectangle r, Clip clip) {
  r.y = clip.getFrameFreqSamples() - (r.y + r.height);
}