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<html>
<head>
<title>MediaRecorder infinite recursion with requestData() calls in "dataavailable" event</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<script type="text/javascript" src="manifest.js"></script>
<script type="text/javascript" src="gUM_support.js"></script>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=897776">Mozill
a Bug 897776</a>
<pre id="test">
<script class="testbody" type="text/javascript">
async function startTest() {
try {
await setupGetUserMediaTestPrefs();
let stream = await navigator.mediaDevices.getUserMedia({audio: true});
let mediaRecorder = new MediaRecorder(stream);
let count = 0;
mediaRecorder.onerror = function () {
ok(false, 'Unexpected onerror callback fired');
SimpleTest.finish();
};
mediaRecorder.onwarning = function () {
ok(false, 'Unexpected onwarning callback fired');
};
mediaRecorder.ondataavailable = function (e) {
++count;
info("got ondataavailable data size = " + e.data.size);
// no more requestData() to prevent busy main thread from starving
// the encoding thread
if (count == 30) {
info("track.stop");
stream.getTracks()[0].stop();
} else if (count < 30 && mediaRecorder.state == 'recording') {
info("requestData again");
mediaRecorder.requestData();
}
};
mediaRecorder.onstop = function () {
ok(true, "requestData within ondataavailable successfully avoided infinite recursion");
SimpleTest.finish();
};
mediaRecorder.start();
info("mediaRecorder start");
mediaRecorder.requestData();
info("mediaRecorder requestData");
} catch (e) {
ok(false, 'Unexpected error fired with: ' + e);
SimpleTest.finish();
}
}
SimpleTest.waitForExplicitFinish();
startTest();
</script>
</pre>
</body>
</html>
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