Implement OfflineAudioContext constructor
[WebKit-https.git] / LayoutTests / webaudio / delaynode-maxdelay.html
1 <!DOCTYPE html>
2
3 <html>
4 <head>
5 <script src="../fast/js/resources/js-test-pre.js"></script>
6 <script src="resources/audio-testing.js"></script>
7 <script src="resources/delay-testing.js"></script>
8 </head>
9
10 <body>
11
12 <div id="description"></div>
13 <div id="console"></div>
14
15 <script>
16 description("Tests basic functionality of DelayNode with a non-default max delay time.");
17
18 function runTest() {
19     if (window.testRunner) {
20         testRunner.dumpAsText();
21         testRunner.waitUntilDone();
22     }
23     
24     window.jsTestIsAsync = true;
25         
26     // Create offline audio context.
27     var context = new webkitOfflineAudioContext(1, sampleRate * renderLengthSeconds, sampleRate);
28     var toneBuffer = createToneBuffer(context, 20, 20 * toneLengthSeconds, sampleRate); // 20Hz tone
29     
30     var bufferSource = context.createBufferSource();
31     bufferSource.buffer = toneBuffer;
32
33     // Create a delay node with an explicit max delay time (greater than the default of 1 second).
34     var delay = context.createDelayNode(2);
35     // Set the delay time to a value greater than the default max delay so we can verify the delay
36     // is working for this case.
37     delayTimeSeconds = 1.5;
38     delay.delayTime.value = delayTimeSeconds;
39
40     bufferSource.connect(delay);
41     delay.connect(context.destination);
42     bufferSource.noteOn(0);
43     
44     context.oncomplete = checkDelayedResult(toneBuffer);
45     context.startRendering();
46 }
47
48 runTest();
49
50 </script>
51
52 <script src="../fast/js/resources/js-test-post.js"></script>
53 </body>
54 </html>