зеркало из https://github.com/mozilla/gecko-dev.git
129 строки
4.1 KiB
HTML
129 строки
4.1 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<title>Test MediaRecorder Bitrate</title>
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<script 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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<script type="text/javascript" src="manifest.js"></script>
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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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var manager = new MediaTestManager;
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var results = [];
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/**
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* Starts a test on every media recorder file included to check that
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* the bitrate control works
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*/
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function startTest(test, token) {
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manager.started(token);
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runTest(test, token, 1000000);
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runTest(test, token, 100000);
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}
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function runTest(test, token, bitrate) {
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var element = document.createElement('video');
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var expectedMimeType = test.type.substring(0, test.type.indexOf(';'));
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element.token = token;
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element.src = test.name;
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element.preload = "metadata";
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element.onloadedmetadata = function () {
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info("loadedmetadata");
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const stream = element.mozCaptureStreamUntilEnded();
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element.onloadedmetadata = null;
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element.play();
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const mediaRecorder = new MediaRecorder(stream, {videoBitsPerSecond: bitrate});
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mediaRecorder.start();
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is(mediaRecorder.state, 'recording', 'Media recorder should be recording');
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is(mediaRecorder.stream, stream,
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'Media recorder stream = element stream at the start of recording');
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var onStopFired = false;
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var onDataAvailableFired = false;
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var encoded_size = 0;
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mediaRecorder.onerror = function () {
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ok(false, 'Unexpected onerror callback fired');
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};
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mediaRecorder.onwarning = function () {
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ok(false, 'Unexpected onwarning callback fired');
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};
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// This handler verifies that only a single onstop event handler is fired.
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mediaRecorder.onstop = function () {
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if (onStopFired) {
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ok(false, 'onstop unexpectedly fired more than once');
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} else {
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onStopFired = true;
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// ondataavailable should always fire before onstop
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if (onDataAvailableFired) {
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ok(true, 'onstop fired after ondataavailable');
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info("test " + test.name + " encoded@" + bitrate + "=" + encoded_size);
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if (results[test.name]) {
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var big, small, temp;
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big = {};
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big.bitrate = bitrate;
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big.size = encoded_size;
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small = results[test.name];
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// Don't assume the order that these will finish in
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if (results[test.name].bitrate > bitrate) {
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temp = big;
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big = small;
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small = temp;
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}
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// Ensure there is a big enough difference in the encoded
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// sizes
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ok(small.size*1.25 < big.size,
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test.name + ' encoded@' + big.bitrate + '=' + big.size +
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' > encoded@' + small.bitrate + '=' + small.size);
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manager.finished(token);
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} else {
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results[test.name] = {};
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results[test.name].bitrate = bitrate;
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results[test.name].size = encoded_size;
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}
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} else {
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ok(false, 'onstop fired without an ondataavailable event first');
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}
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}
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};
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// This handler verifies that only a single ondataavailable event handler
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// is fired with the blob generated having greater than zero size
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// and a correct mime type.
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mediaRecorder.ondataavailable = function (evt) {
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if (onDataAvailableFired) {
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ok(false, 'ondataavailable unexpectedly fired more than once');
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} else {
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onDataAvailableFired = true;
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ok(evt instanceof BlobEvent,
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'Events fired from ondataavailable should be BlobEvent');
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is(evt.type, 'dataavailable',
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'Event type should dataavailable');
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ok(evt.data.size > 0,
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'Blob data received should be greater than zero');
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encoded_size = evt.data.size;
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// onstop should not have fired before ondataavailable
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if (onStopFired) {
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ok(false, 'ondataavailable unexpectedly fired later than onstop');
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manager.finished(token);
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}
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}
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};
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};
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}
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manager.runTests(gMediaRecorderVideoTests, startTest);
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</script>
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</pre>
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</body>
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</html>
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