<
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=
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"manifest.js"></
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script type=
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<
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>
