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[chromium-blink-merge.git] / third_party / WebKit / LayoutTests / webaudio / oscillator-late-start.html
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1 <!DOCTYPE html>
2 <html>
4 <head>
5 <script src="../resources/js-test.js"></script>
6 <script src="resources/compatibility.js"></script>
7 <script src="resources/audio-testing.js"></script>
8 <script src="resources/late-start-testing.js"></script>
9 </head>
11 <body>
12 <script>
13 description('Test the late call of start(0) of Oscillator.');
14 window.jsTestIsAsync = true;
16 var audit = Audit.createTaskRunner();
18 var sampleRate = 44100;
20 // The long render length (20 seconds) is to make sure the |onstatechange|
21 // event gets fired to start the source, which can take quite a bit of time.
22 var renderLength = 20;
24 var context = new OfflineAudioContext(1, sampleRate * renderLength, sampleRate);
25 var osc = context.createOscillator();
27 // Test the oscillator node is rendered correctly when the start time of start()
28 // call is in the past in terms of the context time.
29 runLateStartTest(audit, context, osc);
31 successfullyParsed = true;
32 </script>
33 </body>
35 </html>