gecko-dev/layout/reftests/webm-video/canvas-1b.xhtml

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<?xml version="1.0" encoding="UTF-8"?>
<svg xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink"
version="1.1">
<!-- use an empty g to force filters.svg to load before onload -->
<use xlink:href="../filters.svg#empty" />
<foreignObject filter="url(../filters.svg#ThresholdRGB)" x="0" y="0" height="100%" width="100%">
<html lang="en" xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">
<body>
<canvas id="canvas" width="200" height="200"></canvas>
<script>
function draw() {
var video = document.getElementById("video");
var canvas = document.getElementById("canvas");
var ctx = canvas.getContext("2d");
try {
ctx.drawImage(video, 0, 0, video.videoWidth, video.videoHeight);
} catch (e) {
}
document.documentElement.removeAttribute("class");
}
</script>
<video id="video" src="black140x100.webm" onloadeddata="draw()" style="opacity:0"></video>
</body>
</html>
</foreignObject>
</svg>