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+<!DOCTYPE html>
+<html>
+ <head>
+ <title>
+ Test AudioBufferSourceNode With Looping And Duration
+ </title>
+ <script src="/resources/testharness.js"></script>
+ <script src="/resources/testharnessreport.js"></script>
+ <script src="/webaudio/resources/audit-util.js"></script>
+ <script src="/webaudio/resources/audit.js"></script>
+ </head>
+ <body>
+ <script id="layout-test-code">
+ let audit = Audit.createTaskRunner();
+ audit.define('loop with duration', (task, should) => {
+ // Create the context
+ let context = new OfflineAudioContext(1, 4096, 48000);
+
+ // Create the sample buffer and fill the second half with 1
+ let buffer = context.createBuffer(1, 2048, context.sampleRate);
+ for (let i = 1024; i < 2048; i++) {
+ buffer.getChannelData(0)[i] = 1;
+ }
+
+ // Create the source and set its value
+ let source = context.createBufferSource();
+ source.loop = true;
+ source.loopStart = 1024 / context.sampleRate;
+ source.loopEnd = 2048 / context.sampleRate;
+ source.buffer = buffer;
+ source.connect(context.destination);
+ source.start(0, 1024 / context.sampleRate, 2048 / context.sampleRate);
+ // Expectations
+ let expected = new Float32Array(4096);
+ for (let i = 0; i < 2048; i++) {
+ expected[i] = 1;
+ }
+ // Render it!
+ context.startRendering()
+ .then(function(audioBuffer) {
+ should(
+ audioBuffer.getChannelData(0), 'audioBuffer.getChannelData')
+ .beEqualToArray(expected);
+ })
+ .then(task.done());
+ });
+
+ audit.run();
+
+ </script>
+ </body>
+</html>