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<!DOCTYPE html>
<meta charset="utf-8">
<title>Test Background Video Suspends</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"/>
<script type="text/javascript">
"use strict";
var manager = new MediaTestManager;
function testSameContent(video1, video2) {
if (video1.videoWidth != video2.videoWidth ||
video1.videoHeight != video2.videoHeight) {
ok(false, `${video1.token} video1 and video2 have different dimensions.`);
return;
}
let w = video1.videoWidth;
let h = video1.videoHeight;
let c1 = document.createElement('canvas');
let c2 = document.createElement('canvas');
c1.width = w;
c1.height = h;
c2.width = w;
c2.height = h;
let gfx1 = c1.getContext('2d');
let gfx2 = c2.getContext('2d');
if (!gfx1 || !gfx2) {
ok(false, "Unable to obtain context '2d' from canvas");
return;
}
gfx1.drawImage(video1, 0, 0, w, h);
gfx2.drawImage(video2, 0, 0, w, h);
// Get content out.
let contentWidth = 4;
let contentHeight = 4;
let imageData1 = gfx1.getImageData(0, 0, contentWidth, contentHeight);
let imageData2 = gfx2.getImageData(0, 0, contentWidth, contentHeight);
let pixels1 = imageData1.data;
let pixels2 = imageData2.data;
// Check that the content of two video are identical.
for (let i = 0; i < contentWidth*contentHeight; i++) {
let pixelCount = 4 * i;
if (pixels1[pixelCount+0] != pixels2[pixelCount+0] ||
pixels1[pixelCount+1] != pixels2[pixelCount+1] ||
pixels1[pixelCount+2] != pixels2[pixelCount+2] ||
pixels1[pixelCount+3] != pixels2[pixelCount+3]) {
ok(false, `${video1.token} video1 and video2 have different content.`);
return;
}
}
ok(true, `${video1.token} video1 and video2 have identical content.`);
}
function waitUntilSeekToLastFrame(video) {
Log(video.token, "Waiting for seeking to the last frame");
function callSeekToNextFrame() {
video.seekToNextFrame().then(
() => {
if (!video.seenEnded) {
callSeekToNextFrame();
}
},
() => {
// When seek reaches the end, the promise is resolved before 'ended'
// is fired. The resolver calls callSeekToNextFrame() to schedule
// another seek and then the 'ended' handler calls finish() to shut
// down the MediaDecoder which will reject the seek promise. So we don't
// raise an error in this case.
ok(video.seenEnded, "seekToNextFrame() failed.");
}
);
}
return new Promise(function(resolve, reject) {
video.seenEnded = false;
video.addEventListener("ended", () => {
video.seenEnded = true;
resolve();
}, true);
callSeekToNextFrame(video);
});
}
startTest({
desc: "Test resume an ended video shows the last frame.",
prefs: [
[ "media.test.video-suspend", true ],
[ "media.suspend-bkgnd-video.enabled", true ],
[ "media.suspend-bkgnd-video.delay-ms", 100 ],
[ "media.dormant-on-pause-timeout-ms", -1],
[ "media.decoder.skip-to-next-key-frame.enabled", false]
],
tests: gDecodeSuspendTests,
runTest: (test, token) => {
let v = appendVideoToDocWithoutLoad(token);
let vReference = appendVideoToDocWithoutLoad(token+"-ref");
manager.started(token);
/*
* This test checks that, after a video element had finished its playback,
* resuming video decoder should seek to the last frame.
* This issue was found in bug 1358057.
*/
waitUntilVisible(v)
.then(() => {
return Promise.all([loadAndWaitUntilLoadedmetadata(v, test.name), loadAndWaitUntilLoadedmetadata(vReference, test.name, "auto")]);
})
.then(() => waitUntilPlaying(v))
.then(() => testVideoSuspendsWhenHidden(v))
.then(() => {
return Promise.all([waitUntilEnded(v), waitUntilSeekToLastFrame(vReference)]);
})
.then(() => testVideoOnlySeekCompletedWhenShown(v))
.then(() => {
testSameContent(v, vReference);
removeNodeAndSource(v);
removeNodeAndSource(vReference);
manager.finished(token);
});
}
});
</script>
|
