| Index: ManualTests/webaudio/audiobuffersource-resampling-onended.html
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| diff --git a/ManualTests/webaudio/audiobuffersource-resampling-onended.html b/ManualTests/webaudio/audiobuffersource-resampling-onended.html
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| new file mode 100644
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| index 0000000000000000000000000000000000000000..7d329e4d2ac0c0eb18675375cd251b42d7fe84b1
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| --- /dev/null
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| +++ b/ManualTests/webaudio/audiobuffersource-resampling-onended.html
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| @@ -0,0 +1,97 @@
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| +<!doctype html>
|
| +<html>
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| + <head>
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| + <title>Test AudioBufferSource.onended</title>
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| + <style type="text/css">
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| + header {
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| + margin: 20px 0;
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| + }
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| + #results {
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| + white-space: pre;
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| + font-family: monospace;
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| + }
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| + </style>
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| + </head>
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| +
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| + <body>
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| + <h1>Test AudioBufferSource.onended</h1>
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| +
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| + <p>Tests that the onended event is called. This test cannot be run in an offline context
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| + because the onended event is always called.
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| + </p>
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| +
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| + <p>Press "Test" button to run the test. You should hear two tones, each lasting 1/2 second. If
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| + you do not, the test failed and onended was not correctly fired to generate the second tone.
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| + There should also be messages displayed for each tone played.
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| + </p>
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| +
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| + <button onclick="runTest()">Test</button>
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| +
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| + <header>Results</header>
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| + <div id="results"></div>
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| +
|
| + <script>
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| + // This is a slightly modified version of http://jsfiddle.net/ep4zm233/
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| +
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| + var context = new AudioContext();
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| +
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| + function runTest() {
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| + log("Starting test");
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| +
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| + // Create two buffers at a sample rate of 8000. We're assuming 8000 is not the actual
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| + // context sampleRate so that resampling happens during the play back of the buffers.
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| + var bufferRate = 8000;
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| + var bufferSeconds = 0.5;
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| + var bufferFrames = bufferSeconds * bufferRate;
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| +
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| + // The tone buffers at 400Hz and 600 Hz.
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| + var sin400 = context.createBuffer(1, bufferFrames, bufferRate);
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| + var sin600 = context.createBuffer(1, bufferFrames, bufferRate);
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| +
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| + var d400 = sin400.getChannelData(0);
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| + var d600 = sin600.getChannelData(0);
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| +
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| + var omega = 2*Math.PI/bufferRate;
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| +
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| + for (var k = 0; k < bufferFrames; ++k) {
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| + d400[k] = Math.sin(omega * 400 * k);
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| + d600[k] = Math.sin(omega * 600 * k);
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| + }
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| +
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| + var s1 = context.createBufferSource();
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| +
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| + s1.onended = function () {
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| + // Create a new source using the 600Hz buffer and play it as soon as the onended event for
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| + // s1 has fired.
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| + var s2 = context.createBufferSource();
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| + s2.connect(context.destination);
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| + s2.buffer = sin600;
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| + s2.start();
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| + log("Tone 2");
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| + }
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| +
|
| + // Set up the 400 Hz buffer and play it.
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| + s1.buffer = sin400;
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| +
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| + s1.connect(context.destination);
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| + s1.start();
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| + log("Tone 1");
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| + }
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| +
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| + function clearResults() {
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| + var results = document.querySelector("#results");
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| + results.textContent = "";
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| + }
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| +
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| + function log(message) {
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| + console.log(message);
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| + var results = document.querySelector("#results");
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| + results.textContent += message + "\n";
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| + }
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| + </script>
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| +
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| +
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| +
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| +
|
| + </body>
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| +</html>
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|
|
Chromium Code Reviews
Issue 1097373003:
Fix issue with failing to call AudioBufferSource.onended in some cases (Closed)
Base URL: svn://svn.chromium.org/blink/trunk