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<!DOCTYPE HTML>
<html>
<head>
<title>Test MediaRecorder Record AudioContext with four channels</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>
</head>
<body>
<script class="testbody" type="text/javascript">
function startTest() {
var context = new AudioContext();
var buffer = context.createBuffer(4, 80920, context.sampleRate);
for (var i = 0; i < 80920; ++i) {
for(var j = 0; j < 4; ++j) {
buffer.getChannelData(j)[i] = Math.sin(1000 * 2 * Math.PI * i / context.sampleRate);
}
}
var source = context.createBufferSource();
source.buffer = buffer;
source.loop = true;
var dest = context.createMediaStreamDestination();
var stopTriggered = false;
var onstopTriggered = false;
dest.channelCount = 4;
var expectedMimeType = 'audio/ogg; codecs=opus';
source.channelCountMode = 'explicit';
source.connect(dest);
var elem = document.createElement('audio');
elem.srcObject = dest.stream;
source.start(0);
elem.play();
let mMediaRecorder = new MediaRecorder(dest.stream);
mMediaRecorder.onwarning = function() {
ok(false, 'onwarning unexpectedly fired');
};
mMediaRecorder.onerror = function() {
ok(false, 'onerror unexpectedly fired');
};
mMediaRecorder.onstop = function() {
ok(true, 'onstop fired successfully');
is(mMediaRecorder.state, 'inactive', 'check recording status is inactive');
onstopTriggered = true;
SimpleTest.finish();
};
mMediaRecorder.ondataavailable = function (e) {
ok(e.data.size > 0, 'check blob has data');
is(e.data.type, expectedMimeType, 'blob should have expected mimetype');
if (!stopTriggered) {
is(mMediaRecorder.mimeType, expectedMimeType, 'recorder should have expected mimetype');
mMediaRecorder.stop();
is(mMediaRecorder.mimeType, '', 'recorder should have reset its mimetype');
stopTriggered = true;
} else if (onstopTriggered) {
ok(false, 'ondataavailable should come before onstop event');
}
};
try {
mMediaRecorder.start(1000);
is('recording', mMediaRecorder.state, "check record state recording");
} catch (e) {
ok(false, 'Can t record audio context');
}
}
startTest();
SimpleTest.waitForExplicitFinish();
</script>
</pre>
</body>
</html>
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