<!DOCTYPE html>
<!-- This page is used to test media src= (video and audio) performance.
This can be used for src= (but not for MSE or EME) for content of any format
that Chrome supports playing.
TODO(crouleau): Rename file to contrast with mse.html. "video.html" doesn't
make sense because sometimes we play audio-only content. Note that this will
require a data migration on the chromeperf dashboard since "video.html" is
included in the metrics' page names.
-->
<html>
<body>
</body>
<script>
function getQueryStrings() {
// Gets query parameters from the URL; e.g., given a URL like:
//
// http://<url>/my.html?test=123&bob=456
//
// returns params["test"] = 123, params["bob"]=456, etc.
var params = {};
// RegEx to split out values by &.
var r = /([^&=]+)=?([^&]*)/g;
// Lambda function for decoding extracted match values. Replaces '+' with
// space so decodeURIComponent functions properly.
function d(s) { return decodeURIComponent(s.replace(/\+/g, ' ')); }
var match;
while (match = r.exec(window.location.search.substring(1)))
params[d(match[1])] = d(match[2]);
return params;
}
// This keeps the renderer thread busy all the time, however, it
// stops to let other things run every 20 ms.
function makeBusy() {
var t = new Date().getTime();
while (new Date().getTime() - t < 20); // 20 ms busy loop
// Run this function again as soon as possible.
setTimeout(makeBusy, 0);
}
qsParams = getQueryStrings();
var type = qsParams['type'] || 'video';
var testElement = document.createElement(type);
testElement.preload = 'none';
testElement.controls = true;
if (qsParams['id'])
testElement.id = qsParams['id'];
if ('busyjs' in qsParams)
makeBusy();
testElement.src = qsParams['src'];
document.body.appendChild(testElement);
</script>
</html>
Codebase Browser
chromium