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+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>Test Background Video Displays Video Frame via drawImage When Suspended</title>
+<script src="/tests/SimpleTest/SimpleTest.js"></script>
+<script src="manifest.js"></script>
+<script src="background_video.js"></script>
+<link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
+<style>
+video, canvas {
+ border: 1px solid black;
+}
+</style>
+<script type="text/javascript">
+"use strict";
+
+var manager = new MediaTestManager;
+
+function drawVideoToCanvas(v) {
+ console.log('drawVideoToCanvas');
+ let c = document.createElement('canvas');
+ c.width = 4;
+ c.height = 4;
+ c.style.width = 64;
+ c.style.height = 64;
+ document.body.appendChild(c);
+
+ let gfx = c.getContext('2d');
+ if (!gfx) {
+ throw Error("Unable to obtain context '2d' from canvas");
+ }
+
+ gfx.drawImage(v, 0, 0, 4, 4);
+ let imageData = gfx.getImageData(0, 0, 4, 4);
+ let pixels = imageData.data;
+
+ // Check that pixels aren't all the same colour.
+ // Implements by checking against rgb of the first pixel.
+ let rr = pixels[0],
+ gg = pixels[1],
+ bb = pixels[2],
+ allSame = true;
+
+ for (let i = 0; i < 4*4; i++) {
+ let r = pixels[4*i+0];
+ let g = pixels[4*i+1];
+ let b = pixels[4*i+2];
+ if (r != rr || g != gg || b != bb) {
+ allSame = false;
+ break;
+ }
+ }
+
+ ok(!allSame, "Pixels aren't all the same color");
+}
+
+startTest({
+ desc: 'Test Background Video Displays Video Frame via drawImage When Suspended',
+ prefs: [
+ [ "media.test.video-suspend", true ],
+ [ "media.suspend-bkgnd-video.enabled", true ],
+ [ "media.suspend-bkgnd-video.delay-ms", 500 ]
+ ],
+ tests: gDecodeSuspendTests,
+ runTest: (test, token) => {
+ let v = appendVideoToDoc(test.name, token);
+ manager.started(token);
+
+ waitUntilPlaying(v)
+ .then(() => testVideoSuspendsWhenHidden(v))
+ .then(() => {
+ drawVideoToCanvas(v);
+ manager.finished(token);
+ });
+ }
+});
+</script>