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519 lines
15 KiB
519 lines
15 KiB
/* global window document */
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/* eslint-disable vars-on-top, no-var, object-shorthand, no-console */
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(function(window) {
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var representationsEl = document.getElementById('representations');
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representationsEl.addEventListener('change', function() {
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var selectedIndex = representationsEl.selectedIndex;
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if (!selectedIndex || selectedIndex < 1 || !window.vhs) {
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return;
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}
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var selectedOption = representationsEl.options[representationsEl.selectedIndex];
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if (!selectedOption) {
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return;
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}
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var id = selectedOption.value;
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window.vhs.representations().forEach(function(rep) {
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rep.playlist.disabled = rep.id !== id;
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});
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window.mpc.smoothQualityChange_();
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});
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var hlsOptGroup = document.querySelector('[label="hls"]');
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var dashOptGroup = document.querySelector('[label="dash"]');
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var drmOptGroup = document.querySelector('[label="drm"]');
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var liveOptGroup = document.querySelector('[label="live"]');
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var llliveOptGroup = document.querySelector('[label="low latency live"]');
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// get the sources list squared away
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var xhr = new window.XMLHttpRequest();
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xhr.addEventListener('load', function() {
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var sources = JSON.parse(xhr.responseText);
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sources.forEach(function(source) {
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var option = document.createElement('option');
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option.innerText = source.name;
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option.value = source.uri;
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if (source.keySystems) {
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option.setAttribute('data-key-systems', JSON.stringify(source.keySystems, null, 2));
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}
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if (source.mimetype) {
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option.setAttribute('data-mimetype', source.mimetype);
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}
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if (source.features.indexOf('low-latency') !== -1) {
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llliveOptGroup.appendChild(option);
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} else if (source.features.indexOf('live') !== -1) {
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liveOptGroup.appendChild(option);
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} else if (source.keySystems) {
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drmOptGroup.appendChild(option);
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} else if (source.mimetype === 'application/x-mpegurl') {
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hlsOptGroup.appendChild(option);
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} else if (source.mimetype === 'application/dash+xml') {
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dashOptGroup.appendChild(option);
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}
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});
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});
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xhr.open('GET', './scripts/sources.json');
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xhr.send();
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// all relevant elements
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var urlButton = document.getElementById('load-url');
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var sources = document.getElementById('load-source');
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var stateEls = {};
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var getInputValue = function(el) {
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if (el.type === 'url' || el.type === 'text' || el.nodeName.toLowerCase() === 'textarea') {
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return encodeURIComponent(el.value);
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} else if (el.type === 'select-one') {
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return el.options[el.selectedIndex].value;
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} else if (el.type === 'checkbox') {
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return el.checked;
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}
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console.warn('unhandled input type ' + el.type);
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return '';
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};
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var setInputValue = function(el, value) {
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if (el.type === 'url' || el.type === 'text' || el.nodeName.toLowerCase() === 'textarea') {
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el.value = decodeURIComponent(value);
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} else if (el.type === 'select-one') {
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for (var i = 0; i < el.options.length; i++) {
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if (el.options[i].value === value) {
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el.options[i].selected = true;
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}
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}
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} else {
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// get the `value` into a Boolean.
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el.checked = JSON.parse(value);
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}
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};
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var newEvent = function(name) {
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var event;
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if (typeof window.Event === 'function') {
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event = new window.Event(name);
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} else {
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event = document.createEvent('Event');
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event.initEvent(name, true, true);
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}
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return event;
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};
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// taken from video.js
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var getFileExtension = function(path) {
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var splitPathRe;
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var pathParts;
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if (typeof path === 'string') {
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splitPathRe = /^(\/?)([\s\S]*?)((?:\.{1,2}|[^\/]*?)(\.([^\.\/\?]+)))(?:[\/]*|[\?].*)$/i;
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pathParts = splitPathRe.exec(path);
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if (pathParts) {
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return pathParts.pop().toLowerCase();
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}
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}
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return '';
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};
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var saveState = function() {
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var query = '';
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if (!window.history.replaceState) {
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return;
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}
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Object.keys(stateEls).forEach(function(elName) {
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var symbol = query.length ? '&' : '?';
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query += symbol + elName + '=' + getInputValue(stateEls[elName]);
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});
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window.history.replaceState({}, 'vhs demo', query);
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};
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window.URLSearchParams = window.URLSearchParams || function(locationSearch) {
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this.get = function(name) {
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var results = new RegExp('[\?&]' + name + '=([^&#]*)').exec(locationSearch);
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return results ? decodeURIComponent(results[1]) : null;
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};
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};
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// eslint-disable-next-line
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var loadState = function() {
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var params = new window.URLSearchParams(window.location.search);
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return Object.keys(stateEls).reduce(function(acc, elName) {
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acc[elName] = typeof params.get(elName) !== 'object' ? params.get(elName) : getInputValue(stateEls[elName]);
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return acc;
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}, {});
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};
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// eslint-disable-next-line
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var reloadScripts = function(urls, cb) {
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var el = document.getElementById('reload-scripts');
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if (!el) {
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el = document.createElement('div');
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el.id = 'reload-scripts';
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document.body.appendChild(el);
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}
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while (el.firstChild) {
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el.removeChild(el.firstChild);
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}
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var loaded = [];
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var checkDone = function() {
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if (loaded.length === urls.length) {
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cb();
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}
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};
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urls.forEach(function(url) {
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var script = document.createElement('script');
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// scripts marked as defer will be loaded asynchronously but will be executed in the order they are in the DOM
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script.defer = true;
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// dynamically created scripts are async by default unless otherwise specified
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// async scripts are loaded asynchronously but also executed as soon as they are loaded
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// we want to load them in the order they are added therefore we want to turn off async
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script.async = false;
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script.src = url;
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script.onload = function() {
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loaded.push(url);
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checkDone();
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};
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el.appendChild(script);
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});
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};
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var regenerateRepresentations = function() {
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while (representationsEl.firstChild) {
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representationsEl.removeChild(representationsEl.firstChild);
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}
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var selectedIndex;
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window.vhs.representations().forEach(function(rep, i) {
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var option = document.createElement('option');
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option.value = rep.id;
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option.innerText = JSON.stringify({
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id: rep.id,
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videoCodec: rep.codecs.video,
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audioCodec: rep.codecs.audio,
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bandwidth: rep.bandwidth,
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heigth: rep.heigth,
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width: rep.width
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});
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if (window.mpc.media().id === rep.id) {
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selectedIndex = i;
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}
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representationsEl.appendChild(option);
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});
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representationsEl.selectedIndex = selectedIndex;
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};
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[
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'debug',
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'autoplay',
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'muted',
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'minified',
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'sync-workers',
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'liveui',
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'partial',
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'url',
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'type',
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'keysystems',
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'buffer-water',
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'override-native',
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'preload',
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'mirror-source'
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].forEach(function(name) {
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stateEls[name] = document.getElementById(name);
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});
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window.startDemo = function(cb) {
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var state = loadState();
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Object.keys(state).forEach(function(elName) {
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setInputValue(stateEls[elName], state[elName]);
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});
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Array.prototype.forEach.call(sources.options, function(s, i) {
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if (s.value === state.url) {
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sources.selectedIndex = i;
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}
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});
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stateEls.muted.addEventListener('change', function(event) {
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saveState();
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window.player.muted(event.target.checked);
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});
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stateEls.autoplay.addEventListener('change', function(event) {
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saveState();
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window.player.autoplay(event.target.checked);
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});
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stateEls['mirror-source'].addEventListener('change', function(event) {
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saveState();
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// reload the player and scripts
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stateEls.minified.dispatchEvent(newEvent('change'));
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});
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stateEls['sync-workers'].addEventListener('change', function(event) {
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saveState();
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// reload the player and scripts
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stateEls.minified.dispatchEvent(newEvent('change'));
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});
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stateEls.preload.addEventListener('change', function(event) {
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saveState();
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// reload the player and scripts
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stateEls.minified.dispatchEvent(newEvent('change'));
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});
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stateEls.debug.addEventListener('change', function(event) {
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saveState();
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window.videojs.log.level(event.target.checked ? 'debug' : 'info');
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});
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stateEls.partial.addEventListener('change', function(event) {
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saveState();
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// reload the player and scripts
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stateEls.minified.dispatchEvent(newEvent('change'));
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});
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stateEls['buffer-water'].addEventListener('change', function(event) {
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saveState();
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// reload the player and scripts
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stateEls.minified.dispatchEvent(newEvent('change'));
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});
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stateEls['override-native'].addEventListener('change', function(event) {
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saveState();
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// reload the player and scripts
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stateEls.minified.dispatchEvent(newEvent('change'));
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});
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stateEls.liveui.addEventListener('change', function(event) {
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saveState();
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stateEls.minified.dispatchEvent(newEvent('change'));
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});
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stateEls.minified.addEventListener('change', function(event) {
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var urls = [
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'node_modules/video.js/dist/alt/video.core',
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'node_modules/videojs-contrib-eme/dist/videojs-contrib-eme',
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'node_modules/videojs-contrib-quality-levels/dist/videojs-contrib-quality-levels',
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'node_modules/videojs-http-source-selector/dist/videojs-http-source-selector'
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].map(function(url) {
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return url + (event.target.checked ? '.min' : '') + '.js';
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});
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if (stateEls['sync-workers'].checked) {
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urls.push('dist/videojs-http-streaming-sync-workers.js');
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} else {
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urls.push('dist/videojs-http-streaming' + (event.target.checked ? '.min' : '') + '.js');
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}
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saveState();
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if (window.player) {
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window.player.dispose();
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delete window.player;
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}
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if (window.videojs) {
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delete window.videojs;
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}
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reloadScripts(urls, function() {
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var player;
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var fixture = document.getElementById('player-fixture');
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var videoEl = document.createElement('video-js');
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videoEl.setAttribute('controls', '');
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videoEl.setAttribute('preload', stateEls.preload.options[stateEls.preload.selectedIndex].value || 'auto');
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videoEl.className = 'vjs-default-skin';
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fixture.appendChild(videoEl);
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var mirrorSource = getInputValue(stateEls['mirror-source']);
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player = window.player = window.videojs(videoEl, {
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plugins: {
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httpSourceSelector: {
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default: 'auto'
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}
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},
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liveui: stateEls.liveui.checked,
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enableSourceset: mirrorSource,
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html5: {
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vhs: {
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overrideNative: getInputValue(stateEls['override-native']),
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handlePartialData: getInputValue(stateEls.partial),
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experimentalBufferBasedABR: getInputValue(stateEls['buffer-water'])
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}
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}
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});
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player.on('sourceset', function() {
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var source = player.currentSource();
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if (source.keySystems) {
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var copy = JSON.parse(JSON.stringify(source.keySystems));
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// have to delete pssh as it will often make keySystems too big
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// for a uri
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Object.keys(copy).forEach(function(key) {
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if (copy[key].hasOwnProperty('pssh')) {
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delete copy[key].pssh;
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}
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});
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stateEls.keysystems.value = JSON.stringify(copy, null, 2);
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}
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if (source.src) {
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stateEls.url.value = source.src;
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}
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if (source.type) {
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stateEls.type.value = source.type;
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}
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saveState();
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});
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player.width(640);
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player.height(264);
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// configure videojs-contrib-eme
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player.eme();
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stateEls.debug.dispatchEvent(newEvent('change'));
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stateEls.muted.dispatchEvent(newEvent('change'));
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stateEls.autoplay.dispatchEvent(newEvent('change'));
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// run the load url handler for the intial source
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if (stateEls.url.value) {
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urlButton.dispatchEvent(newEvent('click'));
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} else {
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sources.dispatchEvent(newEvent('change'));
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}
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player.on('loadedmetadata', function() {
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if (player.tech_.vhs) {
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window.vhs = player.tech_.vhs;
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window.mpc = player.tech_.vhs.masterPlaylistController_;
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window.mpc.masterPlaylistLoader_.on('mediachange', regenerateRepresentations);
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regenerateRepresentations();
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} else {
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window.vhs = null;
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window.mpc = null;
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}
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});
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cb(player);
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});
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});
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var urlButtonClick = function(event) {
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var ext;
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var type = stateEls.type.value;
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if (!type.trim()) {
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ext = getFileExtension(stateEls.url.value);
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if (ext === 'mpd') {
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type = 'application/dash+xml';
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} else if (ext === 'm3u8') {
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type = 'application/x-mpegURL';
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}
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}
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saveState();
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var source = {
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src: stateEls.url.value,
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type: type
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};
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if (stateEls.keysystems.value) {
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source.keySystems = JSON.parse(stateEls.keysystems.value);
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}
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sources.selectedIndex = -1;
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Array.prototype.forEach.call(sources.options, function(s, i) {
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if (s.value === stateEls.url.value) {
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sources.selectedIndex = i;
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}
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});
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window.player.src(source);
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};
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urlButton.addEventListener('click', urlButtonClick);
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urlButton.addEventListener('tap', urlButtonClick);
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sources.addEventListener('change', function(event) {
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var selectedOption = sources.options[sources.selectedIndex];
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if (!selectedOption) {
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return;
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}
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var src = selectedOption.value;
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stateEls.url.value = src;
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stateEls.type.value = selectedOption.getAttribute('data-mimetype');
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stateEls.keysystems.value = selectedOption.getAttribute('data-key-systems');
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urlButton.dispatchEvent(newEvent('click'));
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});
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stateEls.url.addEventListener('keyup', function(event) {
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if (event.key === 'Enter') {
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urlButton.click();
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}
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});
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stateEls.url.addEventListener('input', function(event) {
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if (stateEls.type.value.length) {
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stateEls.type.value = '';
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}
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});
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stateEls.type.addEventListener('keyup', function(event) {
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if (event.key === 'Enter') {
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urlButton.click();
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}
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});
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// run the change handler for the first time
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stateEls.minified.dispatchEvent(newEvent('change'));
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};
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}(window));
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