File: test-pannernode-automation.html

package info (click to toggle)
firefox-esr 68.10.0esr-1~deb9u1
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 3,143,932 kB
  • sloc: cpp: 5,227,879; javascript: 4,315,531; ansic: 2,467,042; python: 794,975; java: 349,993; asm: 232,034; xml: 228,320; sh: 82,008; lisp: 41,202; makefile: 22,347; perl: 15,555; objc: 5,277; cs: 4,725; yacc: 1,778; ada: 1,681; pascal: 1,673; lex: 1,417; exp: 527; php: 436; ruby: 225; awk: 162; sed: 53; csh: 44
file content (36 lines) | stat: -rw-r--r-- 1,242 bytes parent folder | download | duplicates (28) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
 
<!doctype html>
<meta charset=utf-8>
<title></title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script>

// This value is purposefuly not aligned on a 128-block boundary so that we test
// that the PannerNode position audioparam is a-rate.
const POSITION_CHANGE_FRAME = 1111;

promise_test(function(t) {
  var ac = new OfflineAudioContext(2, 2048, 44100);
  var panner = ac.createPanner();
  panner.positionX.value = -1;
  panner.positionY.value = -1;
  panner.positionZ.value = 1;
  panner.positionX.setValueAtTime(1, POSITION_CHANGE_FRAME/ac.sampleRate);
  var osc = ac.createOscillator();
  osc.connect(panner);
  panner.connect(ac.destination);
  osc.start()
  return ac.startRendering().then(function(buffer) {
    var left = buffer.getChannelData(0);
    var right = buffer.getChannelData(1);
    for (var i = 0; i < 2048; ++i) {
      if (i < POSITION_CHANGE_FRAME) {
        assert_true(Math.abs(left[i]) >= Math.abs(right[i]), "index " + i + " should be on the left");
      } else {
        assert_true(Math.abs(left[i]) < Math.abs(right[i]), "index " + i + " should be on the right");
      }
    }
  });
}, "PannerNode AudioParam automation works properly");

</script>