public void draw() {
background(0);
stroke(255);
// perform a forward FFT on the samples in jingle's mix buffer,
// which contains the mix of both the left and right channels of the file
fft.forward(jingle.mix);
for (int i = 0; i < fft.specSize(); i++) {
// draw the line for frequency band i, scaling it up a bit so we can see it
line(i, height / 2, i, height / 2 - fft.getBand(i) * 4);
}
stroke(255, 0, 0);
for (int beat : beats) {
float x = beat * width / totalSamples;
line(x, 0, x, height);
}
stroke(255, 255, 0);
float x = jingle.position() * width / jingle.length();
line(x, 0, x, height);
image(preview, 0, 0);
stroke(0, 255, 0);
float s = (float) width / samples.length;
line(loopStart * s, 0, loopStart * s, height);
line(loopEnd * s, 0, loopEnd * s, height);
}
/**
* Test method for {@code AudioPlayer#play(URL)}
*
* @throws Exception audio fault exception, e.g. can't open stream, unhandleable audio format
* @throws MalformedURLException wrong URL
*/
@Test(timeout = 4 * MAX_DURATION)
public void testPlay() throws MalformedURLException, Exception {
File wav1 = new File(TestUtils.getRegressionDataFile(6851, "20111003_121226.wav"));
File wav2 = new File(TestUtils.getRegressionDataFile(6851, "20111003_121557.wav"));
for (File w : new File[] {wav1, wav2}) {
System.out.println("Playing " + w.toPath());
URL url = w.toURI().toURL();
long start = System.currentTimeMillis();
AudioPlayer.play(url);
assertTrue(AudioPlayer.playing());
assertFalse(AudioPlayer.paused());
AudioPlayer.pause();
assertFalse(AudioPlayer.playing());
assertTrue(AudioPlayer.paused());
AudioPlayer.play(url, AudioPlayer.position());
while (AudioPlayer.playing() && (System.currentTimeMillis() - start) < MAX_DURATION) {
Thread.sleep(500);
}
long duration = System.currentTimeMillis() - start;
System.out.println("Play finished after " + Utils.getDurationString(duration));
assertTrue(duration < MAX_DURATION);
AudioPlayer.reset();
Thread.sleep(1000); // precaution, see #13809
}
}
