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90 lines
2.5 KiB
HTML
90 lines
2.5 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<meta charset="utf-8">
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<head>
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<title>Test MediaStreamAudioSourceNode doesn't get data from cross-origin media resources</title>
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<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
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</head>
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<body>
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<pre id="test">
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<script class="testbody" type="text/javascript">
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SimpleTest.waitForExplicitFinish();
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var tests = [
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// Not the same origin no CORS asked for, should have silence
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{ url: "http://example.org:80/tests/dom/media/webaudio/test/small-shot.ogg",
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cors: null,
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expectSilence: true },
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// Same origin, should have sound
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{ url: "small-shot.ogg",
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cors: null,
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expectSilence: false },
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// Cross-origin but we asked for CORS and the server answered with the right
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// header, should have
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{ url: "http://example.org:80/tests/dom/media/webaudio/test/corsServer.sjs",
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cors: "anonymous",
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expectSilence: false }
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];
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var testsRemaining = tests.length;
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tests.forEach(function(e) {
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e.ac = new AudioContext();
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var a = new Audio();
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a.loop = true;
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if (e.cors) {
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a.crossOrigin = e.cors;
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}
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a.src = e.url;
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a.controls = true;
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var measn = e.ac.createMediaElementSource(a);
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var sp = e.ac.createScriptProcessor(2048, 1);
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// Set a couple expandos to track the status of the test
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sp.iterationsLeft = 20;
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sp.seenSound = false;
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measn.connect(sp);
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a.play();
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document.body.appendChild(a);
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function checkFinished(sp) {
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if (--sp.iterationsLeft == 0) {
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sp.onaudioprocess = null;
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a.pause();
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var not = e.expectSilence ? "" : "not";
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is(e.expectSilence, !sp.seenSound,
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"Buffer is " + not + " silent as expected, for " +
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e.url + " (cors: " + e.cors + ")");
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if (--testsRemaining == 0) {
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SimpleTest.finish();
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}
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}
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}
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function checkBufferSilent(e) {
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var inputArrayBuffer = e.inputBuffer.getChannelData(0);
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var silent = true;
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for (var i = 0; i < inputArrayBuffer.length; i++) {
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if (inputArrayBuffer[i] != 0.0) {
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silent = false;
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break;
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}
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}
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// It is acceptable to find a full buffer of silence here, even if we expect
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// sound, because Gecko's looping on media elements is not seamless and we
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// can underrun. We are looking for at least one buffer of non-silent data.
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e.target.seenSound = !silent || e.target.seenSound;
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checkFinished(e.target);
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return silent;
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}
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a.onplaying = function () {
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sp.onaudioprocess = checkBufferSilent;
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}
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});
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</script>
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</pre>
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</body>
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</html>
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