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chore(demo): add a representations selector to the demo page #901

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merged 1 commit into from
Jul 13, 2020
Merged

chore(demo): add a representations selector to the demo page #901

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2 changes: 2 additions & 0 deletions index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,8 @@
<body>
<div id="player-fixture">
</div>
<label>Representations</label>
<select id='representations'></select>
<h3>Options</h3>

<div class="options">
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57 changes: 56 additions & 1 deletion scripts/index-demo-page.js
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Original file line number Diff line number Diff line change
@@ -1,7 +1,27 @@
/* global window document */
/* eslint-disable vars-on-top, no-var, object-shorthand, no-console */
(function(window) {
var representationsEl = document.getElementById('representations');

representationsEl.addEventListener('change', function() {
var selectedIndex = representationsEl.selectedIndex;

if (!selectedIndex || selectedIndex < 1 || !window.vhs) {
return;
}
var selectedOption = representationsEl.options[representationsEl.selectedIndex];

if (!selectedOption) {
return;
}

var id = selectedOption.value;

window.vhs.representations().forEach(function(rep) {
rep.enabled(rep.id === id);
});

});
var hlsOptGroup = document.querySelector('[label="hls"]');
var dashOptGroup = document.querySelector('[label="dash"]');
var drmOptGroup = document.querySelector('[label="drm"]');
Expand Down Expand Up @@ -165,6 +185,36 @@
onload();
};

var regenerateRepresentations = function() {
while (representationsEl.firstChild) {
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As things are blacklisted representations can be removed/added.

representationsEl.removeChild(representationsEl.firstChild);
}

var selectedIndex;

window.vhs.representations().forEach(function(rep, i) {
var option = document.createElement('option');

option.value = rep.id;
option.innerText = JSON.stringify({
id: rep.id,
videoCodec: rep.codecs.video,
audioCodec: rep.codecs.audio,
bandwidth: rep.bandwidth,
heigth: rep.heigth,
width: rep.width
});

if (window.mpc.media().id === rep.id) {
selectedIndex = i;
}

representationsEl.appendChild(option);
});

representationsEl.selectedIndex = selectedIndex;
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This does not trigger a change event on representationsEl as that only happens when not using the js api.

};

['debug', 'autoplay', 'muted', 'minified', 'liveui', 'partial', 'url', 'type', 'keysystems'].forEach(function(name) {
stateEls[name] = document.getElementById(name);
});
Expand Down Expand Up @@ -277,10 +327,15 @@
} else {
sources.dispatchEvent(newEvent('change'));
}
player.on('loadedmetadata', () => {
player.on('loadedmetadata', function() {
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As you can guess, ie 11 didn't like this

if (player.vhs) {
window.vhs = player.tech_.vhs;
window.mpc = player.tech_.vhs.masterPlaylistController_;
window.mpc.masterPlaylistLoader_.on('mediachange', function() {
regenerateRepresentations();
});
regenerateRepresentations();

} else {
window.vhs = null;
window.mpc = null;
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