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overlapping-fragments.html
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overlapping-fragments.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<link rel="stylesheet" href="../lib/style.css" />
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<div id="content-wrapper">
<div id="video-wrapper">
<video></video>
<div><div id="qr-code"></div></div>
<div><div id="status-text"></div></div>
</div>
<div>
To show/hide debug overlay press up/down or button beneath
</div>
<div id="debug-wrapper">
<div>
<div class="button" id="debug-button">Debug Overlay</div>
</div>
<div id="debug"></div>
<div id="log"></div>
</div>
</div>
<div id="info-overlay"></div>
<script src="../lib/mozilla/object-keys-polyfill.js"></script>
<script src="../lib/stefanpenner/es6-promise.min.js"></script>
<script src="../lib/player.js"></script>
<script src="../lib/manifest_parser.js"></script>
<script src="../lib/mpd-parser.js"></script>
<script src="../lib/wave-service.js"></script>
<script src="../lib/davidshimjs/qrcode.js"></script>
<script src="../lib/dpctf-testharness.js"></script>
<script>
// Global variables
var TEST_INFO = {
title: "Overlapping Fragments",
description:
"Playback of overlapping fragments assumes that the application can overwrite the buffer with other fragments. This is for example useful in case that a fragment is loaded in lower quality but may then be replaced by a better-quality fragment.",
path: "{{TEST_PATH}}",
code: "{{TEMPLATE_NAME}}",
params: urlParams,
observations: [],
};
var video = document.querySelector("video");
var qrCode = document.getElementById("qr-code");
var statusText = document.getElementById("status-text");
var overwriteCurrentFragment = true;
var videoContentModel = "{{VIDEO_MPD_URL}}";
var audioContentModel = "{{AUDIO_MPD_URL}}";
var dpctfTest = new DpctfTest({
testInfo: TEST_INFO,
videoContentModel: videoContentModel,
audioContentModel: audioContentModel,
videoElement: video,
qrCodeElement: qrCode,
statusTextElement: statusText,
infoOverlayElement: document.getElementById("info-overlay"),
executeTest: executeTest,
usePlayout: true,
});
function executeTest(player, done, parameters) {
var minBufferDuration = parameters.minBufferDuration / 1000;
var handleRandomSwitch = function (currentTime) {
var duration = player.getDuration();
var switchingTime = duration * 0.3;
if (currentTime < switchingTime) return;
if (Math.random() > 0.05) return;
var newRepresentationIndex = 1;
var totalSegmentsCount = player
.getVideoManifest()
.getRepresentation(newRepresentationIndex)
.getTotalSegmentsCount();
var switchingSegment = player.getPlayingVideoSegment().getNumber();
if (!overwriteCurrentFragment) {
switchingSegment += 1;
}
player.setVideoSegments({
representationNumber: 1,
startSegment: switchingSegment,
endSegment: totalSegmentsCount - 1,
});
player.off(handleRandomSwitch);
};
player.on("onTimeUpdate", handleRandomSwitch);
player.startBuffering();
if (player.getPreBufferedTime() >= minBufferDuration ||
player.getPreBufferedTime() >= player.getDuration()) {
player
.play()
.then(function () {
done();
})
.catch(function (error) {
done(error);
});
} else {
var loadedEvent = "onVideoSegmentLoaded";
if (videoContentModel.length === 0) loadedEvent = "onAudioSegmentLoaded";
player.on(loadedEvent, function (event) {
if (player.getPreBufferedTime() >= minBufferDuration ||
player.getPreBufferedTime() >= player.getDuration()) {
player
.play()
.then(function () {
done();
})
.catch(function (error) {
done(error);
});
}
});
}
dpctfTest.asyncTest(function (test) {
var query = location.search.replace(/\?/, "");
var match = query.match(/redirect_time=([^&]+)/);
var REDIRECT_TIME = match ? match[1] : null;
if (!REDIRECT_TIME) REDIRECT_TIME = 5;
video.addEventListener("ended", function (event) {
assert_true(true);
test.done();
});
}, "video ended event fired");
}
</script>
</body>
</html>