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+<!DOCTYPE HTML>
+<html>
+<meta charset="utf-8">
+<head>
+ <title>Test MediaStreamAudioSourceNode doesn't get data from cross-origin media resources</title>
+ <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<pre id="test">
+<script class="testbody" type="text/javascript">
+SimpleTest.waitForExplicitFinish();
+
+// Turn off the authentication dialog blocking for this test.
+SpecialPowers.setIntPref("network.auth.subresource-http-auth-allow", 2)
+
+var tests = [
+ // Not the same origin no CORS asked for, should have silence
+ { url: "http://example.org:80/tests/dom/media/webaudio/test/small-shot.ogg",
+ cors: null,
+ expectSilence: true },
+ // Same origin, should have sound
+ { url: "small-shot.ogg",
+ cors: null,
+ expectSilence: false },
+ // Cross-origin but we asked for CORS and the server answered with the right
+ // header, should have
+ { url: "http://example.org:80/tests/dom/media/webaudio/test/corsServer.sjs",
+ cors: "anonymous",
+ expectSilence: false }
+];
+
+var testsRemaining = tests.length;
+
+tests.forEach(function(e) {
+ e.ac = new AudioContext();
+ var a = new Audio();
+ if (e.cors) {
+ a.crossOrigin = e.cors;
+ }
+ a.src = e.url;
+ document.body.appendChild(a);
+
+ a.onloadedmetadata = () => {
+ // Wait for "loadedmetadata" before capturing since tracks are then known
+ // directly. If we set up the capture before "loadedmetadata" we
+ // (internally) have to wait an extra async jump for tracks to become known
+ // to main thread, before setting up audio data forwarding to the node.
+ // As that happens, the audio resource may have already ended on slow test
+ // machines, causing failures.
+ a.onloadedmetadata = null;
+ var measn = e.ac.createMediaElementSource(a);
+ var sp = e.ac.createScriptProcessor(2048, 1);
+ sp.seenSound = false;
+ sp.onaudioprocess = checkBufferSilent;
+
+ measn.connect(sp);
+ a.play();
+ };
+
+ function checkFinished(sp) {
+ if (a.ended) {
+ sp.onaudioprocess = null;
+ var not = e.expectSilence ? "" : "not";
+ is(e.expectSilence, !sp.seenSound,
+ "Buffer is " + not + " silent as expected, for " +
+ e.url + " (cors: " + e.cors + ")");
+ if (--testsRemaining == 0) {
+ SimpleTest.finish();
+ }
+ }
+ }
+
+ function checkBufferSilent(e) {
+ var inputArrayBuffer = e.inputBuffer.getChannelData(0);
+ var silent = true;
+ for (var i = 0; i < inputArrayBuffer.length; i++) {
+ if (inputArrayBuffer[i] != 0.0) {
+ silent = false;
+ break;
+ }
+ }
+ // It is acceptable to find a full buffer of silence here, even if we expect
+ // sound, because Gecko's looping on media elements is not seamless and we
+ // can underrun. We are looking for at least one buffer of non-silent data.
+ e.target.seenSound = !silent || e.target.seenSound;
+ checkFinished(e.target);
+ return silent;
+ }
+});
+</script>
+</pre>
+</body>
+</html>