diff --git a/.gitignore b/.gitignore index da93220..ea65588 100644 --- a/.gitignore +++ b/.gitignore @@ -1,4 +1,4 @@ /node_modules/ -/public/build/ + .DS_Store diff --git a/.idea/vcs.xml b/.idea/vcs.xml new file mode 100644 index 0000000..94a25f7 --- /dev/null +++ b/.idea/vcs.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/public/build/bundle.css b/public/build/bundle.css new file mode 100644 index 0000000..59242b8 --- /dev/null +++ b/public/build/bundle.css @@ -0,0 +1,2 @@ + +/*# sourceMappingURL=bundle.css.map */ \ No newline at end of file diff --git a/public/build/bundle.css.map b/public/build/bundle.css.map new file mode 100644 index 0000000..18508c1 --- /dev/null +++ b/public/build/bundle.css.map @@ -0,0 +1,8 @@ +{ + "version": 3, + "file": "bundle.css", + "sources": [], + "sourcesContent": [], + "names": [], + "mappings": "" +} \ No newline at end of file diff --git a/public/build/bundle.js b/public/build/bundle.js new file mode 100644 index 0000000..fd01e03 --- /dev/null +++ b/public/build/bundle.js @@ -0,0 +1,59377 @@ + +(function(l, r) { if (l.getElementById('livereloadscript')) return; r = l.createElement('script'); r.async = 1; r.src = '//' + (window.location.host || 'localhost').split(':')[0] + ':35729/livereload.js?snipver=1'; r.id = 'livereloadscript'; l.getElementsByTagName('head')[0].appendChild(r) })(window.document); +var app = (function () { + 'use strict'; + + function noop() { } + function add_location(element, file, line, column, char) { + element.__svelte_meta = { + loc: { file, line, column, char } + }; + } + function run(fn) { + return fn(); + } + function blank_object() { + return Object.create(null); + } + function run_all(fns) { + fns.forEach(run); + } + function is_function(thing) { + return typeof thing === 'function'; + } + function safe_not_equal(a, b) { + return a != a ? b == b : a !== b || ((a && typeof a === 'object') || typeof a === 'function'); + } + function validate_store(store, name) { + if (store != null && typeof store.subscribe !== 'function') { + throw new Error(`'${name}' is not a store with a 'subscribe' method`); + } + } + function subscribe(store, ...callbacks) { + if (store == null) { + return noop; + } + const unsub = store.subscribe(...callbacks); + return unsub.unsubscribe ? () => unsub.unsubscribe() : unsub; + } + function component_subscribe(component, store, callback) { + component.$$.on_destroy.push(subscribe(store, callback)); + } + + function append(target, node) { + target.appendChild(node); + } + function insert(target, node, anchor) { + target.insertBefore(node, anchor || null); + } + function detach(node) { + node.parentNode.removeChild(node); + } + function element(name) { + return document.createElement(name); + } + function text(data) { + return document.createTextNode(data); + } + function space() { + return text(' '); + } + function listen(node, event, handler, options) { + node.addEventListener(event, handler, options); + return () => node.removeEventListener(event, handler, options); + } + function attr(node, attribute, value) { + if (value == null) + node.removeAttribute(attribute); + else if (node.getAttribute(attribute) !== value) + node.setAttribute(attribute, value); + } + function children(element) { + return Array.from(element.childNodes); + } + function custom_event(type, detail) { + const e = document.createEvent('CustomEvent'); + e.initCustomEvent(type, false, false, detail); + return e; + } + + let current_component; + function set_current_component(component) { + current_component = component; + } + function get_current_component() { + if (!current_component) + throw new Error(`Function called outside component initialization`); + return current_component; + } + function onMount(fn) { + get_current_component().$$.on_mount.push(fn); + } + + const dirty_components = []; + const binding_callbacks = []; + const render_callbacks = []; + const flush_callbacks = []; + const resolved_promise = Promise.resolve(); + let update_scheduled = false; + function schedule_update() { + if (!update_scheduled) { + update_scheduled = true; + resolved_promise.then(flush); + } + } + function add_render_callback(fn) { + render_callbacks.push(fn); + } + let flushing = false; + const seen_callbacks = new Set(); + function flush() { + if (flushing) + return; + flushing = true; + do { + // first, call beforeUpdate functions + // and update components + for (let i = 0; i < dirty_components.length; i += 1) { + const component = dirty_components[i]; + set_current_component(component); + update(component.$$); + } + dirty_components.length = 0; + while (binding_callbacks.length) + binding_callbacks.pop()(); + // then, once components are updated, call + // afterUpdate functions. This may cause + // subsequent updates... + for (let i = 0; i < render_callbacks.length; i += 1) { + const callback = render_callbacks[i]; + if (!seen_callbacks.has(callback)) { + // ...so guard against infinite loops + seen_callbacks.add(callback); + callback(); + } + } + render_callbacks.length = 0; + } while (dirty_components.length); + while (flush_callbacks.length) { + flush_callbacks.pop()(); + } + update_scheduled = false; + flushing = false; + seen_callbacks.clear(); + } + function update($$) { + if ($$.fragment !== null) { + $$.update(); + run_all($$.before_update); + const dirty = $$.dirty; + $$.dirty = [-1]; + $$.fragment && $$.fragment.p($$.ctx, dirty); + $$.after_update.forEach(add_render_callback); + } + } + const outroing = new Set(); + let outros; + function transition_in(block, local) { + if (block && block.i) { + outroing.delete(block); + block.i(local); + } + } + function transition_out(block, local, detach, callback) { + if (block && block.o) { + if (outroing.has(block)) + return; + outroing.add(block); + outros.c.push(() => { + outroing.delete(block); + if (callback) { + if (detach) + block.d(1); + callback(); + } + }); + block.o(local); + } + } + + const globals = (typeof window !== 'undefined' + ? window + : typeof globalThis !== 'undefined' + ? globalThis + : global); + function create_component(block) { + block && block.c(); + } + function mount_component(component, target, anchor) { + const { fragment, on_mount, on_destroy, after_update } = component.$$; + fragment && fragment.m(target, anchor); + // onMount happens before the initial afterUpdate + add_render_callback(() => { + const new_on_destroy = on_mount.map(run).filter(is_function); + if (on_destroy) { + on_destroy.push(...new_on_destroy); + } + else { + // Edge case - component was destroyed immediately, + // most likely as a result of a binding initialising + run_all(new_on_destroy); + } + component.$$.on_mount = []; + }); + after_update.forEach(add_render_callback); + } + function destroy_component(component, detaching) { + const $$ = component.$$; + if ($$.fragment !== null) { + run_all($$.on_destroy); + $$.fragment && $$.fragment.d(detaching); + // TODO null out other refs, including component.$$ (but need to + // preserve final state?) + $$.on_destroy = $$.fragment = null; + $$.ctx = []; + } + } + function make_dirty(component, i) { + if (component.$$.dirty[0] === -1) { + dirty_components.push(component); + schedule_update(); + component.$$.dirty.fill(0); + } + component.$$.dirty[(i / 31) | 0] |= (1 << (i % 31)); + } + function init(component, options, instance, create_fragment, not_equal, props, dirty = [-1]) { + const parent_component = current_component; + set_current_component(component); + const prop_values = options.props || {}; + const $$ = component.$$ = { + fragment: null, + ctx: null, + // state + props, + update: noop, + not_equal, + bound: blank_object(), + // lifecycle + on_mount: [], + on_destroy: [], + before_update: [], + after_update: [], + context: new Map(parent_component ? parent_component.$$.context : []), + // everything else + callbacks: blank_object(), + dirty + }; + let ready = false; + $$.ctx = instance + ? instance(component, prop_values, (i, ret, ...rest) => { + const value = rest.length ? rest[0] : ret; + if ($$.ctx && not_equal($$.ctx[i], $$.ctx[i] = value)) { + if ($$.bound[i]) + $$.bound[i](value); + if (ready) + make_dirty(component, i); + } + return ret; + }) + : []; + $$.update(); + ready = true; + run_all($$.before_update); + // `false` as a special case of no DOM component + $$.fragment = create_fragment ? create_fragment($$.ctx) : false; + if (options.target) { + if (options.hydrate) { + const nodes = children(options.target); + // eslint-disable-next-line @typescript-eslint/no-non-null-assertion + $$.fragment && $$.fragment.l(nodes); + nodes.forEach(detach); + } + else { + // eslint-disable-next-line @typescript-eslint/no-non-null-assertion + $$.fragment && $$.fragment.c(); + } + if (options.intro) + transition_in(component.$$.fragment); + mount_component(component, options.target, options.anchor); + flush(); + } + set_current_component(parent_component); + } + class SvelteComponent { + $destroy() { + destroy_component(this, 1); + this.$destroy = noop; + } + $on(type, callback) { + const callbacks = (this.$$.callbacks[type] || (this.$$.callbacks[type] = [])); + callbacks.push(callback); + return () => { + const index = callbacks.indexOf(callback); + if (index !== -1) + callbacks.splice(index, 1); + }; + } + $set() { + // overridden by instance, if it has props + } + } + + function dispatch_dev(type, detail) { + document.dispatchEvent(custom_event(type, Object.assign({ version: '3.23.0' }, detail))); + } + function append_dev(target, node) { + dispatch_dev("SvelteDOMInsert", { target, node }); + append(target, node); + } + function insert_dev(target, node, anchor) { + dispatch_dev("SvelteDOMInsert", { target, node, anchor }); + insert(target, node, anchor); + } + function detach_dev(node) { + dispatch_dev("SvelteDOMRemove", { node }); + detach(node); + } + function listen_dev(node, event, handler, options, has_prevent_default, has_stop_propagation) { + const modifiers = options === true ? ["capture"] : options ? Array.from(Object.keys(options)) : []; + if (has_prevent_default) + modifiers.push('preventDefault'); + if (has_stop_propagation) + modifiers.push('stopPropagation'); + dispatch_dev("SvelteDOMAddEventListener", { node, event, handler, modifiers }); + const dispose = listen(node, event, handler, options); + return () => { + dispatch_dev("SvelteDOMRemoveEventListener", { node, event, handler, modifiers }); + dispose(); + }; + } + function attr_dev(node, attribute, value) { + attr(node, attribute, value); + if (value == null) + dispatch_dev("SvelteDOMRemoveAttribute", { node, attribute }); + else + dispatch_dev("SvelteDOMSetAttribute", { node, attribute, value }); + } + function set_data_dev(text, data) { + data = '' + data; + if (text.data === data) + return; + dispatch_dev("SvelteDOMSetData", { node: text, data }); + text.data = data; + } + function validate_slots(name, slot, keys) { + for (const slot_key of Object.keys(slot)) { + if (!~keys.indexOf(slot_key)) { + console.warn(`<${name}> received an unexpected slot "${slot_key}".`); + } + } + } + class SvelteComponentDev extends SvelteComponent { + constructor(options) { + if (!options || (!options.target && !options.$$inline)) { + throw new Error(`'target' is a required option`); + } + super(); + } + $destroy() { + super.$destroy(); + this.$destroy = () => { + console.warn(`Component was already destroyed`); // eslint-disable-line no-console + }; + } + $capture_state() { } + $inject_state() { } + } + + const subscriber_queue = []; + /** + * Create a `Writable` store that allows both updating and reading by subscription. + * @param {*=}value initial value + * @param {StartStopNotifier=}start start and stop notifications for subscriptions + */ + function writable(value, start = noop) { + let stop; + const subscribers = []; + function set(new_value) { + if (safe_not_equal(value, new_value)) { + value = new_value; + if (stop) { // store is ready + const run_queue = !subscriber_queue.length; + for (let i = 0; i < subscribers.length; i += 1) { + const s = subscribers[i]; + s[1](); + subscriber_queue.push(s, value); + } + if (run_queue) { + for (let i = 0; i < subscriber_queue.length; i += 2) { + subscriber_queue[i][0](subscriber_queue[i + 1]); + } + subscriber_queue.length = 0; + } + } + } + } + function update(fn) { + set(fn(value)); + } + function subscribe(run, invalidate = noop) { + const subscriber = [run, invalidate]; + subscribers.push(subscriber); + if (subscribers.length === 1) { + stop = start(set) || noop; + } + run(value); + return () => { + const index = subscribers.indexOf(subscriber); + if (index !== -1) { + subscribers.splice(index, 1); + } + if (subscribers.length === 0) { + stop(); + stop = null; + } + }; + } + return { set, update, subscribe }; + } + + /** + * Created by WebStorm. + * User: martin + * Date: 27/05/2020 + * Time: 10:04 + + */ + + const Playing = writable(''); + + const actions = { + setPlaying(id) { + console.log('>> setPlaying', id); + + Playing.update((v) => { + return (v === id) ? '' : id; + }); + } + + }; + + /* src/components/Youtube.svelte generated by Svelte v3.23.0 */ + + const { console: console_1 } = globals; + const file = "src/components/Youtube.svelte"; + + function create_fragment(ctx) { + let div4; + let div3; + let div2; + let div0; + let t0; + let div1; + let t2; + let iframe; + let iframe_src_value; + let div2_class_value; + let mounted; + let dispose; + + const block = { + c: function create() { + div4 = element("div"); + div3 = element("div"); + div2 = element("div"); + div0 = element("div"); + t0 = space(); + div1 = element("div"); + div1.textContent = "Sky News"; + t2 = space(); + iframe = element("iframe"); + attr_dev(div0, "class", "overlay"); + add_location(div0, file, 87, 12, 2014); + attr_dev(div1, "class", "title"); + add_location(div1, file, 88, 12, 2054); + attr_dev(iframe, "allow", "autoplay"); + attr_dev(iframe, "title", /*title*/ ctx[1]); + attr_dev(iframe, "id", /*fullId*/ ctx[2]); + attr_dev(iframe, "type", "text/html"); + attr_dev(iframe, "frameborder", "0"); + attr_dev(iframe, "width", "100%"); + attr_dev(iframe, "height", "100%"); + if (iframe.src !== (iframe_src_value = /*src*/ ctx[0])) attr_dev(iframe, "src", iframe_src_value); + add_location(iframe, file, 92, 12, 2261); + attr_dev(div2, "class", div2_class_value = "stream live youtube " + /*active*/ ctx[3]); + attr_dev(div2, "data-youtube-id", /*fullId*/ ctx[2]); + add_location(div2, file, 86, 8, 1934); + attr_dev(div3, "class", "wrapper"); + add_location(div3, file, 85, 4, 1904); + attr_dev(div4, "class", "quarter"); + add_location(div4, file, 84, 0, 1855); + }, + l: function claim(nodes) { + throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option"); + }, + m: function mount(target, anchor) { + insert_dev(target, div4, anchor); + append_dev(div4, div3); + append_dev(div3, div2); + append_dev(div2, div0); + append_dev(div2, t0); + append_dev(div2, div1); + append_dev(div2, t2); + append_dev(div2, iframe); + + if (!mounted) { + dispose = listen_dev(div4, "click", /*handleClick*/ ctx[4], false, false, false); + mounted = true; + } + }, + p: function update(ctx, [dirty]) { + if (dirty & /*title*/ 2) { + attr_dev(iframe, "title", /*title*/ ctx[1]); + } + + if (dirty & /*fullId*/ 4) { + attr_dev(iframe, "id", /*fullId*/ ctx[2]); + } + + if (dirty & /*src*/ 1 && iframe.src !== (iframe_src_value = /*src*/ ctx[0])) { + attr_dev(iframe, "src", iframe_src_value); + } + + if (dirty & /*active*/ 8 && div2_class_value !== (div2_class_value = "stream live youtube " + /*active*/ ctx[3])) { + attr_dev(div2, "class", div2_class_value); + } + + if (dirty & /*fullId*/ 4) { + attr_dev(div2, "data-youtube-id", /*fullId*/ ctx[2]); + } + }, + i: noop, + o: noop, + d: function destroy(detaching) { + if (detaching) detach_dev(div4); + mounted = false; + dispose(); + } + }; + + dispatch_dev("SvelteRegisterBlock", { + block, + id: create_fragment.name, + type: "component", + source: "", + ctx + }); + + return block; + } + + function instance($$self, $$props, $$invalidate) { + let { id } = $$props; + let { src } = $$props; + let { title } = $$props; + let fullId; + let active = ""; + let player; + + function mute() { + console.log(`${fullId} - mute`); + player.mute(); + } + + function unMute() { + console.log(`${fullId} - unmute`); + player.unMute(); + } + + Playing.subscribe(v => { + if (typeof fullId !== "undefined") { + console.log(`${fullId} playing`, v); + $$invalidate(3, active = fullId !== "" && v === fullId ? "active" : ""); + + if (player) { + mute(); + + if (active) { + unMute(); + } + } + } + }); + + function handleClick() { + actions.setPlaying(fullId); + } + + async function createPlayer() { + console.log(`${fullId} createPlayer`); + + try { + player = new YT.Player(fullId, + { + "events": { + "onReady"(event) { + console.log("READY!!"); // mute(); + event.target.mute(); + }, // mute(); + + } + }); + + console.log(`${fullId} Player`, player); + console.log(">>>"); + } catch(e) { + console.log(e); + } + + console.log("---"); + } + + onMount(async () => { + console.log(`${fullId} videojs`, window); + + setTimeout( + async () => { + console.log("GO!"); + await createPlayer(); + }, + 1500 + ); + }); + + const writable_props = ["id", "src", "title"]; + + Object.keys($$props).forEach(key => { + if (!~writable_props.indexOf(key) && key.slice(0, 2) !== "$$") console_1.warn(` was created with unknown prop '${key}'`); + }); + + let { $$slots = {}, $$scope } = $$props; + validate_slots("Youtube", $$slots, []); + + $$self.$set = $$props => { + if ("id" in $$props) $$invalidate(5, id = $$props.id); + if ("src" in $$props) $$invalidate(0, src = $$props.src); + if ("title" in $$props) $$invalidate(1, title = $$props.title); + }; + + $$self.$capture_state = () => ({ + onMount, + Playing, + actions, + id, + src, + title, + fullId, + active, + player, + mute, + unMute, + handleClick, + createPlayer + }); + + $$self.$inject_state = $$props => { + if ("id" in $$props) $$invalidate(5, id = $$props.id); + if ("src" in $$props) $$invalidate(0, src = $$props.src); + if ("title" in $$props) $$invalidate(1, title = $$props.title); + if ("fullId" in $$props) $$invalidate(2, fullId = $$props.fullId); + if ("active" in $$props) $$invalidate(3, active = $$props.active); + if ("player" in $$props) player = $$props.player; + }; + + if ($$props && "$$inject" in $$props) { + $$self.$inject_state($$props.$$inject); + } + + $$self.$$.update = () => { + if ($$self.$$.dirty & /*id*/ 32) { + $$invalidate(2, fullId = `${id}-youtube`); + } + }; + + return [src, title, fullId, active, handleClick, id]; + } + + class Youtube extends SvelteComponentDev { + constructor(options) { + super(options); + init(this, options, instance, create_fragment, safe_not_equal, { id: 5, src: 0, title: 1 }); + + dispatch_dev("SvelteRegisterComponent", { + component: this, + tagName: "Youtube", + options, + id: create_fragment.name + }); + + const { ctx } = this.$$; + const props = options.props || {}; + + if (/*id*/ ctx[5] === undefined && !("id" in props)) { + console_1.warn(" was created without expected prop 'id'"); + } + + if (/*src*/ ctx[0] === undefined && !("src" in props)) { + console_1.warn(" was created without expected prop 'src'"); + } + + if (/*title*/ ctx[1] === undefined && !("title" in props)) { + console_1.warn(" was created without expected prop 'title'"); + } + } + + get id() { + throw new Error(": Props cannot be read directly from the component instance unless compiling with 'accessors: true' or ''"); + } + + set id(value) { + throw new Error(": Props cannot be set directly on the component instance unless compiling with 'accessors: true' or ''"); + } + + get src() { + throw new Error(": Props cannot be read directly from the component instance unless compiling with 'accessors: true' or ''"); + } + + set src(value) { + throw new Error(": Props cannot be set directly on the component instance unless compiling with 'accessors: true' or ''"); + } + + get title() { + throw new Error(": Props cannot be read directly from the component instance unless compiling with 'accessors: true' or ''"); + } + + set title(value) { + throw new Error(": Props cannot be set directly on the component instance unless compiling with 'accessors: true' or ''"); + } + } + + var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {}; + + function createCommonjsModule(fn, module) { + return module = { exports: {} }, fn(module, module.exports), module.exports; + } + + function getCjsExportFromNamespace (n) { + return n && n['default'] || n; + } + + var win; + + if (typeof window !== "undefined") { + win = window; + } else if (typeof commonjsGlobal !== "undefined") { + win = commonjsGlobal; + } else if (typeof self !== "undefined"){ + win = self; + } else { + win = {}; + } + + var window_1 = win; + + var _nodeResolve_empty = {}; + + var _nodeResolve_empty$1 = /*#__PURE__*/Object.freeze({ + __proto__: null, + 'default': _nodeResolve_empty + }); + + var minDoc = getCjsExportFromNamespace(_nodeResolve_empty$1); + + var topLevel = typeof commonjsGlobal !== 'undefined' ? commonjsGlobal : + typeof window !== 'undefined' ? window : {}; + + + var doccy; + + if (typeof document !== 'undefined') { + doccy = document; + } else { + doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4']; + + if (!doccy) { + doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'] = minDoc; + } + } + + var document_1 = doccy; + + var _extends_1 = createCommonjsModule(function (module) { + function _extends() { + module.exports = _extends = Object.assign || function (target) { + for (var i = 1; i < arguments.length; i++) { + var source = arguments[i]; + + for (var key in source) { + if (Object.prototype.hasOwnProperty.call(source, key)) { + target[key] = source[key]; + } + } + } + + return target; + }; + + return _extends.apply(this, arguments); + } + + module.exports = _extends; + }); + + function _assertThisInitialized(self) { + if (self === void 0) { + throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); + } + + return self; + } + + var assertThisInitialized = _assertThisInitialized; + + var _typeof_1 = createCommonjsModule(function (module) { + function _typeof(obj) { + "@babel/helpers - typeof"; + + if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { + module.exports = _typeof = function _typeof(obj) { + return typeof obj; + }; + } else { + module.exports = _typeof = function _typeof(obj) { + return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; + }; + } + + return _typeof(obj); + } + + module.exports = _typeof; + }); + + var getPrototypeOf = createCommonjsModule(function (module) { + function _getPrototypeOf(o) { + module.exports = _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { + return o.__proto__ || Object.getPrototypeOf(o); + }; + return _getPrototypeOf(o); + } + + module.exports = _getPrototypeOf; + }); + + function _inheritsLoose(subClass, superClass) { + subClass.prototype = Object.create(superClass.prototype); + subClass.prototype.constructor = subClass; + subClass.__proto__ = superClass; + } + + var inheritsLoose = _inheritsLoose; + + var tuple = SafeParseTuple; + + function SafeParseTuple(obj, reviver) { + var json; + var error = null; + + try { + json = JSON.parse(obj, reviver); + } catch (err) { + error = err; + } + + return [error, json] + } + + var keycode = createCommonjsModule(function (module, exports) { + // Source: http://jsfiddle.net/vWx8V/ + // http://stackoverflow.com/questions/5603195/full-list-of-javascript-keycodes + + /** + * Conenience method returns corresponding value for given keyName or keyCode. + * + * @param {Mixed} keyCode {Number} or keyName {String} + * @return {Mixed} + * @api public + */ + + function keyCode(searchInput) { + // Keyboard Events + if (searchInput && 'object' === typeof searchInput) { + var hasKeyCode = searchInput.which || searchInput.keyCode || searchInput.charCode; + if (hasKeyCode) searchInput = hasKeyCode; + } + + // Numbers + if ('number' === typeof searchInput) return names[searchInput] + + // Everything else (cast to string) + var search = String(searchInput); + + // check codes + var foundNamedKey = codes[search.toLowerCase()]; + if (foundNamedKey) return foundNamedKey + + // check aliases + var foundNamedKey = aliases[search.toLowerCase()]; + if (foundNamedKey) return foundNamedKey + + // weird character? + if (search.length === 1) return search.charCodeAt(0) + + return undefined + } + + /** + * Compares a keyboard event with a given keyCode or keyName. + * + * @param {Event} event Keyboard event that should be tested + * @param {Mixed} keyCode {Number} or keyName {String} + * @return {Boolean} + * @api public + */ + keyCode.isEventKey = function isEventKey(event, nameOrCode) { + if (event && 'object' === typeof event) { + var keyCode = event.which || event.keyCode || event.charCode; + if (keyCode === null || keyCode === undefined) { return false; } + if (typeof nameOrCode === 'string') { + // check codes + var foundNamedKey = codes[nameOrCode.toLowerCase()]; + if (foundNamedKey) { return foundNamedKey === keyCode; } + + // check aliases + var foundNamedKey = aliases[nameOrCode.toLowerCase()]; + if (foundNamedKey) { return foundNamedKey === keyCode; } + } else if (typeof nameOrCode === 'number') { + return nameOrCode === keyCode; + } + return false; + } + }; + + exports = module.exports = keyCode; + + /** + * Get by name + * + * exports.code['enter'] // => 13 + */ + + var codes = exports.code = exports.codes = { + 'backspace': 8, + 'tab': 9, + 'enter': 13, + 'shift': 16, + 'ctrl': 17, + 'alt': 18, + 'pause/break': 19, + 'caps lock': 20, + 'esc': 27, + 'space': 32, + 'page up': 33, + 'page down': 34, + 'end': 35, + 'home': 36, + 'left': 37, + 'up': 38, + 'right': 39, + 'down': 40, + 'insert': 45, + 'delete': 46, + 'command': 91, + 'left command': 91, + 'right command': 93, + 'numpad *': 106, + 'numpad +': 107, + 'numpad -': 109, + 'numpad .': 110, + 'numpad /': 111, + 'num lock': 144, + 'scroll lock': 145, + 'my computer': 182, + 'my calculator': 183, + ';': 186, + '=': 187, + ',': 188, + '-': 189, + '.': 190, + '/': 191, + '`': 192, + '[': 219, + '\\': 220, + ']': 221, + "'": 222 + }; + + // Helper aliases + + var aliases = exports.aliases = { + 'windows': 91, + '⇧': 16, + '⌥': 18, + '⌃': 17, + '⌘': 91, + 'ctl': 17, + 'control': 17, + 'option': 18, + 'pause': 19, + 'break': 19, + 'caps': 20, + 'return': 13, + 'escape': 27, + 'spc': 32, + 'spacebar': 32, + 'pgup': 33, + 'pgdn': 34, + 'ins': 45, + 'del': 46, + 'cmd': 91 + }; + + /*! + * Programatically add the following + */ + + // lower case chars + for (i = 97; i < 123; i++) codes[String.fromCharCode(i)] = i - 32; + + // numbers + for (var i = 48; i < 58; i++) codes[i - 48] = i; + + // function keys + for (i = 1; i < 13; i++) codes['f'+i] = i + 111; + + // numpad keys + for (i = 0; i < 10; i++) codes['numpad '+i] = i + 96; + + /** + * Get by code + * + * exports.name[13] // => 'Enter' + */ + + var names = exports.names = exports.title = {}; // title for backward compat + + // Create reverse mapping + for (i in codes) names[codes[i]] = i; + + // Add aliases + for (var alias in aliases) { + codes[alias] = aliases[alias]; + } + }); + var keycode_1 = keycode.code; + var keycode_2 = keycode.codes; + var keycode_3 = keycode.aliases; + var keycode_4 = keycode.names; + var keycode_5 = keycode.title; + + var win$1; + + if (typeof window !== "undefined") { + win$1 = window; + } else if (typeof commonjsGlobal !== "undefined") { + win$1 = commonjsGlobal; + } else if (typeof self !== "undefined"){ + win$1 = self; + } else { + win$1 = {}; + } + + var window_1$1 = win$1; + + var isFunction_1 = isFunction; + + var toString = Object.prototype.toString; + + function isFunction (fn) { + if (!fn) { + return false + } + var string = toString.call(fn); + return string === '[object Function]' || + (typeof fn === 'function' && string !== '[object RegExp]') || + (typeof window !== 'undefined' && + // IE8 and below + (fn === window.setTimeout || + fn === window.alert || + fn === window.confirm || + fn === window.prompt)) + } + + /** + * @license + * slighly modified parse-headers 2.0.2 + * Copyright (c) 2014 David Björklund + * Available under the MIT license + * + */ + + var parseHeaders = function(headers) { + var result = {}; + + if (!headers) { + return result; + } + + headers.trim().split('\n').forEach(function(row) { + var index = row.indexOf(':'); + var key = row.slice(0, index).trim().toLowerCase(); + var value = row.slice(index + 1).trim(); + + if (typeof(result[key]) === 'undefined') { + result[key] = value; + } else if (Array.isArray(result[key])) { + result[key].push(value); + } else { + result[key] = [ result[key], value ]; + } + }); + + return result; + }; + + var xhr = createXHR; + // Allow use of default import syntax in TypeScript + var _default = createXHR; + createXHR.XMLHttpRequest = window_1$1.XMLHttpRequest || noop$1; + createXHR.XDomainRequest = "withCredentials" in (new createXHR.XMLHttpRequest()) ? createXHR.XMLHttpRequest : window_1$1.XDomainRequest; + + forEachArray(["get", "put", "post", "patch", "head", "delete"], function(method) { + createXHR[method === "delete" ? "del" : method] = function(uri, options, callback) { + options = initParams(uri, options, callback); + options.method = method.toUpperCase(); + return _createXHR(options) + }; + }); + + function forEachArray(array, iterator) { + for (var i = 0; i < array.length; i++) { + iterator(array[i]); + } + } + + function isEmpty(obj){ + for(var i in obj){ + if(obj.hasOwnProperty(i)) return false + } + return true + } + + function initParams(uri, options, callback) { + var params = uri; + + if (isFunction_1(options)) { + callback = options; + if (typeof uri === "string") { + params = {uri:uri}; + } + } else { + params = _extends_1({}, options, {uri: uri}); + } + + params.callback = callback; + return params + } + + function createXHR(uri, options, callback) { + options = initParams(uri, options, callback); + return _createXHR(options) + } + + function _createXHR(options) { + if(typeof options.callback === "undefined"){ + throw new Error("callback argument missing") + } + + var called = false; + var callback = function cbOnce(err, response, body){ + if(!called){ + called = true; + options.callback(err, response, body); + } + }; + + function readystatechange() { + if (xhr.readyState === 4) { + setTimeout(loadFunc, 0); + } + } + + function getBody() { + // Chrome with requestType=blob throws errors arround when even testing access to responseText + var body = undefined; + + if (xhr.response) { + body = xhr.response; + } else { + body = xhr.responseText || getXml(xhr); + } + + if (isJson) { + try { + body = JSON.parse(body); + } catch (e) {} + } + + return body + } + + function errorFunc(evt) { + clearTimeout(timeoutTimer); + if(!(evt instanceof Error)){ + evt = new Error("" + (evt || "Unknown XMLHttpRequest Error") ); + } + evt.statusCode = 0; + return callback(evt, failureResponse) + } + + // will load the data & process the response in a special response object + function loadFunc() { + if (aborted) return + var status; + clearTimeout(timeoutTimer); + if(options.useXDR && xhr.status===undefined) { + //IE8 CORS GET successful response doesn't have a status field, but body is fine + status = 200; + } else { + status = (xhr.status === 1223 ? 204 : xhr.status); + } + var response = failureResponse; + var err = null; + + if (status !== 0){ + response = { + body: getBody(), + statusCode: status, + method: method, + headers: {}, + url: uri, + rawRequest: xhr + }; + if(xhr.getAllResponseHeaders){ //remember xhr can in fact be XDR for CORS in IE + response.headers = parseHeaders(xhr.getAllResponseHeaders()); + } + } else { + err = new Error("Internal XMLHttpRequest Error"); + } + return callback(err, response, response.body) + } + + var xhr = options.xhr || null; + + if (!xhr) { + if (options.cors || options.useXDR) { + xhr = new createXHR.XDomainRequest(); + }else { + xhr = new createXHR.XMLHttpRequest(); + } + } + + var key; + var aborted; + var uri = xhr.url = options.uri || options.url; + var method = xhr.method = options.method || "GET"; + var body = options.body || options.data; + var headers = xhr.headers = options.headers || {}; + var sync = !!options.sync; + var isJson = false; + var timeoutTimer; + var failureResponse = { + body: undefined, + headers: {}, + statusCode: 0, + method: method, + url: uri, + rawRequest: xhr + }; + + if ("json" in options && options.json !== false) { + isJson = true; + headers["accept"] || headers["Accept"] || (headers["Accept"] = "application/json"); //Don't override existing accept header declared by user + if (method !== "GET" && method !== "HEAD") { + headers["content-type"] || headers["Content-Type"] || (headers["Content-Type"] = "application/json"); //Don't override existing accept header declared by user + body = JSON.stringify(options.json === true ? body : options.json); + } + } + + xhr.onreadystatechange = readystatechange; + xhr.onload = loadFunc; + xhr.onerror = errorFunc; + // IE9 must have onprogress be set to a unique function. + xhr.onprogress = function () { + // IE must die + }; + xhr.onabort = function(){ + aborted = true; + }; + xhr.ontimeout = errorFunc; + xhr.open(method, uri, !sync, options.username, options.password); + //has to be after open + if(!sync) { + xhr.withCredentials = !!options.withCredentials; + } + // Cannot set timeout with sync request + // not setting timeout on the xhr object, because of old webkits etc. not handling that correctly + // both npm's request and jquery 1.x use this kind of timeout, so this is being consistent + if (!sync && options.timeout > 0 ) { + timeoutTimer = setTimeout(function(){ + if (aborted) return + aborted = true;//IE9 may still call readystatechange + xhr.abort("timeout"); + var e = new Error("XMLHttpRequest timeout"); + e.code = "ETIMEDOUT"; + errorFunc(e); + }, options.timeout ); + } + + if (xhr.setRequestHeader) { + for(key in headers){ + if(headers.hasOwnProperty(key)){ + xhr.setRequestHeader(key, headers[key]); + } + } + } else if (options.headers && !isEmpty(options.headers)) { + throw new Error("Headers cannot be set on an XDomainRequest object") + } + + if ("responseType" in options) { + xhr.responseType = options.responseType; + } + + if ("beforeSend" in options && + typeof options.beforeSend === "function" + ) { + options.beforeSend(xhr); + } + + // Microsoft Edge browser sends "undefined" when send is called with undefined value. + // XMLHttpRequest spec says to pass null as body to indicate no body + // See https://github.com/naugtur/xhr/issues/100. + xhr.send(body || null); + + return xhr + + + } + + function getXml(xhr) { + // xhr.responseXML will throw Exception "InvalidStateError" or "DOMException" + // See https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/responseXML. + try { + if (xhr.responseType === "document") { + return xhr.responseXML + } + var firefoxBugTakenEffect = xhr.responseXML && xhr.responseXML.documentElement.nodeName === "parsererror"; + if (xhr.responseType === "" && !firefoxBugTakenEffect) { + return xhr.responseXML + } + } catch (e) {} + + return null + } + + function noop$1() {} + xhr.default = _default; + + /** + * Copyright 2013 vtt.js Contributors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + + /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ + /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */ + + + var _objCreate = Object.create || (function() { + function F() {} + return function(o) { + if (arguments.length !== 1) { + throw new Error('Object.create shim only accepts one parameter.'); + } + F.prototype = o; + return new F(); + }; + })(); + + // Creates a new ParserError object from an errorData object. The errorData + // object should have default code and message properties. The default message + // property can be overriden by passing in a message parameter. + // See ParsingError.Errors below for acceptable errors. + function ParsingError(errorData, message) { + this.name = "ParsingError"; + this.code = errorData.code; + this.message = message || errorData.message; + } + ParsingError.prototype = _objCreate(Error.prototype); + ParsingError.prototype.constructor = ParsingError; + + // ParsingError metadata for acceptable ParsingErrors. + ParsingError.Errors = { + BadSignature: { + code: 0, + message: "Malformed WebVTT signature." + }, + BadTimeStamp: { + code: 1, + message: "Malformed time stamp." + } + }; + + // Try to parse input as a time stamp. + function parseTimeStamp(input) { + + function computeSeconds(h, m, s, f) { + return (h | 0) * 3600 + (m | 0) * 60 + (s | 0) + (f | 0) / 1000; + } + + var m = input.match(/^(\d+):(\d{1,2})(:\d{1,2})?\.(\d{3})/); + if (!m) { + return null; + } + + if (m[3]) { + // Timestamp takes the form of [hours]:[minutes]:[seconds].[milliseconds] + return computeSeconds(m[1], m[2], m[3].replace(":", ""), m[4]); + } else if (m[1] > 59) { + // Timestamp takes the form of [hours]:[minutes].[milliseconds] + // First position is hours as it's over 59. + return computeSeconds(m[1], m[2], 0, m[4]); + } else { + // Timestamp takes the form of [minutes]:[seconds].[milliseconds] + return computeSeconds(0, m[1], m[2], m[4]); + } + } + + // A settings object holds key/value pairs and will ignore anything but the first + // assignment to a specific key. + function Settings() { + this.values = _objCreate(null); + } + + Settings.prototype = { + // Only accept the first assignment to any key. + set: function(k, v) { + if (!this.get(k) && v !== "") { + this.values[k] = v; + } + }, + // Return the value for a key, or a default value. + // If 'defaultKey' is passed then 'dflt' is assumed to be an object with + // a number of possible default values as properties where 'defaultKey' is + // the key of the property that will be chosen; otherwise it's assumed to be + // a single value. + get: function(k, dflt, defaultKey) { + if (defaultKey) { + return this.has(k) ? this.values[k] : dflt[defaultKey]; + } + return this.has(k) ? this.values[k] : dflt; + }, + // Check whether we have a value for a key. + has: function(k) { + return k in this.values; + }, + // Accept a setting if its one of the given alternatives. + alt: function(k, v, a) { + for (var n = 0; n < a.length; ++n) { + if (v === a[n]) { + this.set(k, v); + break; + } + } + }, + // Accept a setting if its a valid (signed) integer. + integer: function(k, v) { + if (/^-?\d+$/.test(v)) { // integer + this.set(k, parseInt(v, 10)); + } + }, + // Accept a setting if its a valid percentage. + percent: function(k, v) { + var m; + if ((m = v.match(/^([\d]{1,3})(\.[\d]*)?%$/))) { + v = parseFloat(v); + if (v >= 0 && v <= 100) { + this.set(k, v); + return true; + } + } + return false; + } + }; + + // Helper function to parse input into groups separated by 'groupDelim', and + // interprete each group as a key/value pair separated by 'keyValueDelim'. + function parseOptions(input, callback, keyValueDelim, groupDelim) { + var groups = groupDelim ? input.split(groupDelim) : [input]; + for (var i in groups) { + if (typeof groups[i] !== "string") { + continue; + } + var kv = groups[i].split(keyValueDelim); + if (kv.length !== 2) { + continue; + } + var k = kv[0]; + var v = kv[1]; + callback(k, v); + } + } + + function parseCue(input, cue, regionList) { + // Remember the original input if we need to throw an error. + var oInput = input; + // 4.1 WebVTT timestamp + function consumeTimeStamp() { + var ts = parseTimeStamp(input); + if (ts === null) { + throw new ParsingError(ParsingError.Errors.BadTimeStamp, + "Malformed timestamp: " + oInput); + } + // Remove time stamp from input. + input = input.replace(/^[^\sa-zA-Z-]+/, ""); + return ts; + } + + // 4.4.2 WebVTT cue settings + function consumeCueSettings(input, cue) { + var settings = new Settings(); + + parseOptions(input, function (k, v) { + switch (k) { + case "region": + // Find the last region we parsed with the same region id. + for (var i = regionList.length - 1; i >= 0; i--) { + if (regionList[i].id === v) { + settings.set(k, regionList[i].region); + break; + } + } + break; + case "vertical": + settings.alt(k, v, ["rl", "lr"]); + break; + case "line": + var vals = v.split(","), + vals0 = vals[0]; + settings.integer(k, vals0); + settings.percent(k, vals0) ? settings.set("snapToLines", false) : null; + settings.alt(k, vals0, ["auto"]); + if (vals.length === 2) { + settings.alt("lineAlign", vals[1], ["start", "center", "end"]); + } + break; + case "position": + vals = v.split(","); + settings.percent(k, vals[0]); + if (vals.length === 2) { + settings.alt("positionAlign", vals[1], ["start", "center", "end"]); + } + break; + case "size": + settings.percent(k, v); + break; + case "align": + settings.alt(k, v, ["start", "center", "end", "left", "right"]); + break; + } + }, /:/, /\s/); + + // Apply default values for any missing fields. + cue.region = settings.get("region", null); + cue.vertical = settings.get("vertical", ""); + try { + cue.line = settings.get("line", "auto"); + } catch (e) {} + cue.lineAlign = settings.get("lineAlign", "start"); + cue.snapToLines = settings.get("snapToLines", true); + cue.size = settings.get("size", 100); + // Safari still uses the old middle value and won't accept center + try { + cue.align = settings.get("align", "center"); + } catch (e) { + cue.align = settings.get("align", "middle"); + } + try { + cue.position = settings.get("position", "auto"); + } catch (e) { + cue.position = settings.get("position", { + start: 0, + left: 0, + center: 50, + middle: 50, + end: 100, + right: 100 + }, cue.align); + } + + + cue.positionAlign = settings.get("positionAlign", { + start: "start", + left: "start", + center: "center", + middle: "center", + end: "end", + right: "end" + }, cue.align); + } + + function skipWhitespace() { + input = input.replace(/^\s+/, ""); + } + + // 4.1 WebVTT cue timings. + skipWhitespace(); + cue.startTime = consumeTimeStamp(); // (1) collect cue start time + skipWhitespace(); + if (input.substr(0, 3) !== "-->") { // (3) next characters must match "-->" + throw new ParsingError(ParsingError.Errors.BadTimeStamp, + "Malformed time stamp (time stamps must be separated by '-->'): " + + oInput); + } + input = input.substr(3); + skipWhitespace(); + cue.endTime = consumeTimeStamp(); // (5) collect cue end time + + // 4.1 WebVTT cue settings list. + skipWhitespace(); + consumeCueSettings(input, cue); + } + + var TEXTAREA_ELEMENT = document_1.createElement("textarea"); + + var TAG_NAME = { + c: "span", + i: "i", + b: "b", + u: "u", + ruby: "ruby", + rt: "rt", + v: "span", + lang: "span" + }; + + // 5.1 default text color + // 5.2 default text background color is equivalent to text color with bg_ prefix + var DEFAULT_COLOR_CLASS = { + white: 'rgba(255,255,255,1)', + lime: 'rgba(0,255,0,1)', + cyan: 'rgba(0,255,255,1)', + red: 'rgba(255,0,0,1)', + yellow: 'rgba(255,255,0,1)', + magenta: 'rgba(255,0,255,1)', + blue: 'rgba(0,0,255,1)', + black: 'rgba(0,0,0,1)' + }; + + var TAG_ANNOTATION = { + v: "title", + lang: "lang" + }; + + var NEEDS_PARENT = { + rt: "ruby" + }; + + // Parse content into a document fragment. + function parseContent(window, input) { + function nextToken() { + // Check for end-of-string. + if (!input) { + return null; + } + + // Consume 'n' characters from the input. + function consume(result) { + input = input.substr(result.length); + return result; + } + + var m = input.match(/^([^<]*)(<[^>]*>?)?/); + // If there is some text before the next tag, return it, otherwise return + // the tag. + return consume(m[1] ? m[1] : m[2]); + } + + function unescape(s) { + TEXTAREA_ELEMENT.innerHTML = s; + s = TEXTAREA_ELEMENT.textContent; + TEXTAREA_ELEMENT.textContent = ""; + return s; + } + + function shouldAdd(current, element) { + return !NEEDS_PARENT[element.localName] || + NEEDS_PARENT[element.localName] === current.localName; + } + + // Create an element for this tag. + function createElement(type, annotation) { + var tagName = TAG_NAME[type]; + if (!tagName) { + return null; + } + var element = window.document.createElement(tagName); + var name = TAG_ANNOTATION[type]; + if (name && annotation) { + element[name] = annotation.trim(); + } + return element; + } + + var rootDiv = window.document.createElement("div"), + current = rootDiv, + t, + tagStack = []; + + while ((t = nextToken()) !== null) { + if (t[0] === '<') { + if (t[1] === "/") { + // If the closing tag matches, move back up to the parent node. + if (tagStack.length && + tagStack[tagStack.length - 1] === t.substr(2).replace(">", "")) { + tagStack.pop(); + current = current.parentNode; + } + // Otherwise just ignore the end tag. + continue; + } + var ts = parseTimeStamp(t.substr(1, t.length - 2)); + var node; + if (ts) { + // Timestamps are lead nodes as well. + node = window.document.createProcessingInstruction("timestamp", ts); + current.appendChild(node); + continue; + } + var m = t.match(/^<([^.\s/0-9>]+)(\.[^\s\\>]+)?([^>\\]+)?(\\?)>?$/); + // If we can't parse the tag, skip to the next tag. + if (!m) { + continue; + } + // Try to construct an element, and ignore the tag if we couldn't. + node = createElement(m[1], m[3]); + if (!node) { + continue; + } + // Determine if the tag should be added based on the context of where it + // is placed in the cuetext. + if (!shouldAdd(current, node)) { + continue; + } + // Set the class list (as a list of classes, separated by space). + if (m[2]) { + var classes = m[2].split('.'); + + classes.forEach(function(cl) { + var bgColor = /^bg_/.test(cl); + // slice out `bg_` if it's a background color + var colorName = bgColor ? cl.slice(3) : cl; + + if (DEFAULT_COLOR_CLASS.hasOwnProperty(colorName)) { + var propName = bgColor ? 'background-color' : 'color'; + var propValue = DEFAULT_COLOR_CLASS[colorName]; + + node.style[propName] = propValue; + } + }); + + node.className = classes.join(' '); + } + // Append the node to the current node, and enter the scope of the new + // node. + tagStack.push(m[1]); + current.appendChild(node); + current = node; + continue; + } + + // Text nodes are leaf nodes. + current.appendChild(window.document.createTextNode(unescape(t))); + } + + return rootDiv; + } + + // This is a list of all the Unicode characters that have a strong + // right-to-left category. What this means is that these characters are + // written right-to-left for sure. It was generated by pulling all the strong + // right-to-left characters out of the Unicode data table. That table can + // found at: http://www.unicode.org/Public/UNIDATA/UnicodeData.txt + var strongRTLRanges = [[0x5be, 0x5be], [0x5c0, 0x5c0], [0x5c3, 0x5c3], [0x5c6, 0x5c6], + [0x5d0, 0x5ea], [0x5f0, 0x5f4], [0x608, 0x608], [0x60b, 0x60b], [0x60d, 0x60d], + [0x61b, 0x61b], [0x61e, 0x64a], [0x66d, 0x66f], [0x671, 0x6d5], [0x6e5, 0x6e6], + [0x6ee, 0x6ef], [0x6fa, 0x70d], [0x70f, 0x710], [0x712, 0x72f], [0x74d, 0x7a5], + [0x7b1, 0x7b1], [0x7c0, 0x7ea], [0x7f4, 0x7f5], [0x7fa, 0x7fa], [0x800, 0x815], + [0x81a, 0x81a], [0x824, 0x824], [0x828, 0x828], [0x830, 0x83e], [0x840, 0x858], + [0x85e, 0x85e], [0x8a0, 0x8a0], [0x8a2, 0x8ac], [0x200f, 0x200f], + [0xfb1d, 0xfb1d], [0xfb1f, 0xfb28], [0xfb2a, 0xfb36], [0xfb38, 0xfb3c], + [0xfb3e, 0xfb3e], [0xfb40, 0xfb41], [0xfb43, 0xfb44], [0xfb46, 0xfbc1], + [0xfbd3, 0xfd3d], [0xfd50, 0xfd8f], [0xfd92, 0xfdc7], [0xfdf0, 0xfdfc], + [0xfe70, 0xfe74], [0xfe76, 0xfefc], [0x10800, 0x10805], [0x10808, 0x10808], + [0x1080a, 0x10835], [0x10837, 0x10838], [0x1083c, 0x1083c], [0x1083f, 0x10855], + [0x10857, 0x1085f], [0x10900, 0x1091b], [0x10920, 0x10939], [0x1093f, 0x1093f], + [0x10980, 0x109b7], [0x109be, 0x109bf], [0x10a00, 0x10a00], [0x10a10, 0x10a13], + [0x10a15, 0x10a17], [0x10a19, 0x10a33], [0x10a40, 0x10a47], [0x10a50, 0x10a58], + [0x10a60, 0x10a7f], [0x10b00, 0x10b35], [0x10b40, 0x10b55], [0x10b58, 0x10b72], + [0x10b78, 0x10b7f], [0x10c00, 0x10c48], [0x1ee00, 0x1ee03], [0x1ee05, 0x1ee1f], + [0x1ee21, 0x1ee22], [0x1ee24, 0x1ee24], [0x1ee27, 0x1ee27], [0x1ee29, 0x1ee32], + [0x1ee34, 0x1ee37], [0x1ee39, 0x1ee39], [0x1ee3b, 0x1ee3b], [0x1ee42, 0x1ee42], + [0x1ee47, 0x1ee47], [0x1ee49, 0x1ee49], [0x1ee4b, 0x1ee4b], [0x1ee4d, 0x1ee4f], + [0x1ee51, 0x1ee52], [0x1ee54, 0x1ee54], [0x1ee57, 0x1ee57], [0x1ee59, 0x1ee59], + [0x1ee5b, 0x1ee5b], [0x1ee5d, 0x1ee5d], [0x1ee5f, 0x1ee5f], [0x1ee61, 0x1ee62], + [0x1ee64, 0x1ee64], [0x1ee67, 0x1ee6a], [0x1ee6c, 0x1ee72], [0x1ee74, 0x1ee77], + [0x1ee79, 0x1ee7c], [0x1ee7e, 0x1ee7e], [0x1ee80, 0x1ee89], [0x1ee8b, 0x1ee9b], + [0x1eea1, 0x1eea3], [0x1eea5, 0x1eea9], [0x1eeab, 0x1eebb], [0x10fffd, 0x10fffd]]; + + function isStrongRTLChar(charCode) { + for (var i = 0; i < strongRTLRanges.length; i++) { + var currentRange = strongRTLRanges[i]; + if (charCode >= currentRange[0] && charCode <= currentRange[1]) { + return true; + } + } + + return false; + } + + function determineBidi(cueDiv) { + var nodeStack = [], + text = "", + charCode; + + if (!cueDiv || !cueDiv.childNodes) { + return "ltr"; + } + + function pushNodes(nodeStack, node) { + for (var i = node.childNodes.length - 1; i >= 0; i--) { + nodeStack.push(node.childNodes[i]); + } + } + + function nextTextNode(nodeStack) { + if (!nodeStack || !nodeStack.length) { + return null; + } + + var node = nodeStack.pop(), + text = node.textContent || node.innerText; + if (text) { + // TODO: This should match all unicode type B characters (paragraph + // separator characters). See issue #115. + var m = text.match(/^.*(\n|\r)/); + if (m) { + nodeStack.length = 0; + return m[0]; + } + return text; + } + if (node.tagName === "ruby") { + return nextTextNode(nodeStack); + } + if (node.childNodes) { + pushNodes(nodeStack, node); + return nextTextNode(nodeStack); + } + } + + pushNodes(nodeStack, cueDiv); + while ((text = nextTextNode(nodeStack))) { + for (var i = 0; i < text.length; i++) { + charCode = text.charCodeAt(i); + if (isStrongRTLChar(charCode)) { + return "rtl"; + } + } + } + return "ltr"; + } + + function computeLinePos(cue) { + if (typeof cue.line === "number" && + (cue.snapToLines || (cue.line >= 0 && cue.line <= 100))) { + return cue.line; + } + if (!cue.track || !cue.track.textTrackList || + !cue.track.textTrackList.mediaElement) { + return -1; + } + var track = cue.track, + trackList = track.textTrackList, + count = 0; + for (var i = 0; i < trackList.length && trackList[i] !== track; i++) { + if (trackList[i].mode === "showing") { + count++; + } + } + return ++count * -1; + } + + function StyleBox() { + } + + // Apply styles to a div. If there is no div passed then it defaults to the + // div on 'this'. + StyleBox.prototype.applyStyles = function(styles, div) { + div = div || this.div; + for (var prop in styles) { + if (styles.hasOwnProperty(prop)) { + div.style[prop] = styles[prop]; + } + } + }; + + StyleBox.prototype.formatStyle = function(val, unit) { + return val === 0 ? 0 : val + unit; + }; + + // Constructs the computed display state of the cue (a div). Places the div + // into the overlay which should be a block level element (usually a div). + function CueStyleBox(window, cue, styleOptions) { + StyleBox.call(this); + this.cue = cue; + + // Parse our cue's text into a DOM tree rooted at 'cueDiv'. This div will + // have inline positioning and will function as the cue background box. + this.cueDiv = parseContent(window, cue.text); + var styles = { + color: "rgba(255, 255, 255, 1)", + backgroundColor: "rgba(0, 0, 0, 0.8)", + position: "relative", + left: 0, + right: 0, + top: 0, + bottom: 0, + display: "inline", + writingMode: cue.vertical === "" ? "horizontal-tb" + : cue.vertical === "lr" ? "vertical-lr" + : "vertical-rl", + unicodeBidi: "plaintext" + }; + + this.applyStyles(styles, this.cueDiv); + + // Create an absolutely positioned div that will be used to position the cue + // div. Note, all WebVTT cue-setting alignments are equivalent to the CSS + // mirrors of them except middle instead of center on Safari. + this.div = window.document.createElement("div"); + styles = { + direction: determineBidi(this.cueDiv), + writingMode: cue.vertical === "" ? "horizontal-tb" + : cue.vertical === "lr" ? "vertical-lr" + : "vertical-rl", + unicodeBidi: "plaintext", + textAlign: cue.align === "middle" ? "center" : cue.align, + font: styleOptions.font, + whiteSpace: "pre-line", + position: "absolute" + }; + + this.applyStyles(styles); + this.div.appendChild(this.cueDiv); + + // Calculate the distance from the reference edge of the viewport to the text + // position of the cue box. The reference edge will be resolved later when + // the box orientation styles are applied. + var textPos = 0; + switch (cue.positionAlign) { + case "start": + textPos = cue.position; + break; + case "center": + textPos = cue.position - (cue.size / 2); + break; + case "end": + textPos = cue.position - cue.size; + break; + } + + // Horizontal box orientation; textPos is the distance from the left edge of the + // area to the left edge of the box and cue.size is the distance extending to + // the right from there. + if (cue.vertical === "") { + this.applyStyles({ + left: this.formatStyle(textPos, "%"), + width: this.formatStyle(cue.size, "%") + }); + // Vertical box orientation; textPos is the distance from the top edge of the + // area to the top edge of the box and cue.size is the height extending + // downwards from there. + } else { + this.applyStyles({ + top: this.formatStyle(textPos, "%"), + height: this.formatStyle(cue.size, "%") + }); + } + + this.move = function(box) { + this.applyStyles({ + top: this.formatStyle(box.top, "px"), + bottom: this.formatStyle(box.bottom, "px"), + left: this.formatStyle(box.left, "px"), + right: this.formatStyle(box.right, "px"), + height: this.formatStyle(box.height, "px"), + width: this.formatStyle(box.width, "px") + }); + }; + } + CueStyleBox.prototype = _objCreate(StyleBox.prototype); + CueStyleBox.prototype.constructor = CueStyleBox; + + // Represents the co-ordinates of an Element in a way that we can easily + // compute things with such as if it overlaps or intersects with another Element. + // Can initialize it with either a StyleBox or another BoxPosition. + function BoxPosition(obj) { + // Either a BoxPosition was passed in and we need to copy it, or a StyleBox + // was passed in and we need to copy the results of 'getBoundingClientRect' + // as the object returned is readonly. All co-ordinate values are in reference + // to the viewport origin (top left). + var lh, height, width, top; + if (obj.div) { + height = obj.div.offsetHeight; + width = obj.div.offsetWidth; + top = obj.div.offsetTop; + + var rects = (rects = obj.div.childNodes) && (rects = rects[0]) && + rects.getClientRects && rects.getClientRects(); + obj = obj.div.getBoundingClientRect(); + // In certain cases the outter div will be slightly larger then the sum of + // the inner div's lines. This could be due to bold text, etc, on some platforms. + // In this case we should get the average line height and use that. This will + // result in the desired behaviour. + lh = rects ? Math.max((rects[0] && rects[0].height) || 0, obj.height / rects.length) + : 0; + + } + this.left = obj.left; + this.right = obj.right; + this.top = obj.top || top; + this.height = obj.height || height; + this.bottom = obj.bottom || (top + (obj.height || height)); + this.width = obj.width || width; + this.lineHeight = lh !== undefined ? lh : obj.lineHeight; + } + + // Move the box along a particular axis. Optionally pass in an amount to move + // the box. If no amount is passed then the default is the line height of the + // box. + BoxPosition.prototype.move = function(axis, toMove) { + toMove = toMove !== undefined ? toMove : this.lineHeight; + switch (axis) { + case "+x": + this.left += toMove; + this.right += toMove; + break; + case "-x": + this.left -= toMove; + this.right -= toMove; + break; + case "+y": + this.top += toMove; + this.bottom += toMove; + break; + case "-y": + this.top -= toMove; + this.bottom -= toMove; + break; + } + }; + + // Check if this box overlaps another box, b2. + BoxPosition.prototype.overlaps = function(b2) { + return this.left < b2.right && + this.right > b2.left && + this.top < b2.bottom && + this.bottom > b2.top; + }; + + // Check if this box overlaps any other boxes in boxes. + BoxPosition.prototype.overlapsAny = function(boxes) { + for (var i = 0; i < boxes.length; i++) { + if (this.overlaps(boxes[i])) { + return true; + } + } + return false; + }; + + // Check if this box is within another box. + BoxPosition.prototype.within = function(container) { + return this.top >= container.top && + this.bottom <= container.bottom && + this.left >= container.left && + this.right <= container.right; + }; + + // Check if this box is entirely within the container or it is overlapping + // on the edge opposite of the axis direction passed. For example, if "+x" is + // passed and the box is overlapping on the left edge of the container, then + // return true. + BoxPosition.prototype.overlapsOppositeAxis = function(container, axis) { + switch (axis) { + case "+x": + return this.left < container.left; + case "-x": + return this.right > container.right; + case "+y": + return this.top < container.top; + case "-y": + return this.bottom > container.bottom; + } + }; + + // Find the percentage of the area that this box is overlapping with another + // box. + BoxPosition.prototype.intersectPercentage = function(b2) { + var x = Math.max(0, Math.min(this.right, b2.right) - Math.max(this.left, b2.left)), + y = Math.max(0, Math.min(this.bottom, b2.bottom) - Math.max(this.top, b2.top)), + intersectArea = x * y; + return intersectArea / (this.height * this.width); + }; + + // Convert the positions from this box to CSS compatible positions using + // the reference container's positions. This has to be done because this + // box's positions are in reference to the viewport origin, whereas, CSS + // values are in referecne to their respective edges. + BoxPosition.prototype.toCSSCompatValues = function(reference) { + return { + top: this.top - reference.top, + bottom: reference.bottom - this.bottom, + left: this.left - reference.left, + right: reference.right - this.right, + height: this.height, + width: this.width + }; + }; + + // Get an object that represents the box's position without anything extra. + // Can pass a StyleBox, HTMLElement, or another BoxPositon. + BoxPosition.getSimpleBoxPosition = function(obj) { + var height = obj.div ? obj.div.offsetHeight : obj.tagName ? obj.offsetHeight : 0; + var width = obj.div ? obj.div.offsetWidth : obj.tagName ? obj.offsetWidth : 0; + var top = obj.div ? obj.div.offsetTop : obj.tagName ? obj.offsetTop : 0; + + obj = obj.div ? obj.div.getBoundingClientRect() : + obj.tagName ? obj.getBoundingClientRect() : obj; + var ret = { + left: obj.left, + right: obj.right, + top: obj.top || top, + height: obj.height || height, + bottom: obj.bottom || (top + (obj.height || height)), + width: obj.width || width + }; + return ret; + }; + + // Move a StyleBox to its specified, or next best, position. The containerBox + // is the box that contains the StyleBox, such as a div. boxPositions are + // a list of other boxes that the styleBox can't overlap with. + function moveBoxToLinePosition(window, styleBox, containerBox, boxPositions) { + + // Find the best position for a cue box, b, on the video. The axis parameter + // is a list of axis, the order of which, it will move the box along. For example: + // Passing ["+x", "-x"] will move the box first along the x axis in the positive + // direction. If it doesn't find a good position for it there it will then move + // it along the x axis in the negative direction. + function findBestPosition(b, axis) { + var bestPosition, + specifiedPosition = new BoxPosition(b), + percentage = 1; // Highest possible so the first thing we get is better. + + for (var i = 0; i < axis.length; i++) { + while (b.overlapsOppositeAxis(containerBox, axis[i]) || + (b.within(containerBox) && b.overlapsAny(boxPositions))) { + b.move(axis[i]); + } + // We found a spot where we aren't overlapping anything. This is our + // best position. + if (b.within(containerBox)) { + return b; + } + var p = b.intersectPercentage(containerBox); + // If we're outside the container box less then we were on our last try + // then remember this position as the best position. + if (percentage > p) { + bestPosition = new BoxPosition(b); + percentage = p; + } + // Reset the box position to the specified position. + b = new BoxPosition(specifiedPosition); + } + return bestPosition || specifiedPosition; + } + + var boxPosition = new BoxPosition(styleBox), + cue = styleBox.cue, + linePos = computeLinePos(cue), + axis = []; + + // If we have a line number to align the cue to. + if (cue.snapToLines) { + var size; + switch (cue.vertical) { + case "": + axis = [ "+y", "-y" ]; + size = "height"; + break; + case "rl": + axis = [ "+x", "-x" ]; + size = "width"; + break; + case "lr": + axis = [ "-x", "+x" ]; + size = "width"; + break; + } + + var step = boxPosition.lineHeight, + position = step * Math.round(linePos), + maxPosition = containerBox[size] + step, + initialAxis = axis[0]; + + // If the specified intial position is greater then the max position then + // clamp the box to the amount of steps it would take for the box to + // reach the max position. + if (Math.abs(position) > maxPosition) { + position = position < 0 ? -1 : 1; + position *= Math.ceil(maxPosition / step) * step; + } + + // If computed line position returns negative then line numbers are + // relative to the bottom of the video instead of the top. Therefore, we + // need to increase our initial position by the length or width of the + // video, depending on the writing direction, and reverse our axis directions. + if (linePos < 0) { + position += cue.vertical === "" ? containerBox.height : containerBox.width; + axis = axis.reverse(); + } + + // Move the box to the specified position. This may not be its best + // position. + boxPosition.move(initialAxis, position); + + } else { + // If we have a percentage line value for the cue. + var calculatedPercentage = (boxPosition.lineHeight / containerBox.height) * 100; + + switch (cue.lineAlign) { + case "center": + linePos -= (calculatedPercentage / 2); + break; + case "end": + linePos -= calculatedPercentage; + break; + } + + // Apply initial line position to the cue box. + switch (cue.vertical) { + case "": + styleBox.applyStyles({ + top: styleBox.formatStyle(linePos, "%") + }); + break; + case "rl": + styleBox.applyStyles({ + left: styleBox.formatStyle(linePos, "%") + }); + break; + case "lr": + styleBox.applyStyles({ + right: styleBox.formatStyle(linePos, "%") + }); + break; + } + + axis = [ "+y", "-x", "+x", "-y" ]; + + // Get the box position again after we've applied the specified positioning + // to it. + boxPosition = new BoxPosition(styleBox); + } + + var bestPosition = findBestPosition(boxPosition, axis); + styleBox.move(bestPosition.toCSSCompatValues(containerBox)); + } + + function WebVTT$1() { + // Nothing + } + + // Helper to allow strings to be decoded instead of the default binary utf8 data. + WebVTT$1.StringDecoder = function() { + return { + decode: function(data) { + if (!data) { + return ""; + } + if (typeof data !== "string") { + throw new Error("Error - expected string data."); + } + return decodeURIComponent(encodeURIComponent(data)); + } + }; + }; + + WebVTT$1.convertCueToDOMTree = function(window, cuetext) { + if (!window || !cuetext) { + return null; + } + return parseContent(window, cuetext); + }; + + var FONT_SIZE_PERCENT = 0.05; + var FONT_STYLE = "sans-serif"; + var CUE_BACKGROUND_PADDING = "1.5%"; + + // Runs the processing model over the cues and regions passed to it. + // @param overlay A block level element (usually a div) that the computed cues + // and regions will be placed into. + WebVTT$1.processCues = function(window, cues, overlay) { + if (!window || !cues || !overlay) { + return null; + } + + // Remove all previous children. + while (overlay.firstChild) { + overlay.removeChild(overlay.firstChild); + } + + var paddedOverlay = window.document.createElement("div"); + paddedOverlay.style.position = "absolute"; + paddedOverlay.style.left = "0"; + paddedOverlay.style.right = "0"; + paddedOverlay.style.top = "0"; + paddedOverlay.style.bottom = "0"; + paddedOverlay.style.margin = CUE_BACKGROUND_PADDING; + overlay.appendChild(paddedOverlay); + + // Determine if we need to compute the display states of the cues. This could + // be the case if a cue's state has been changed since the last computation or + // if it has not been computed yet. + function shouldCompute(cues) { + for (var i = 0; i < cues.length; i++) { + if (cues[i].hasBeenReset || !cues[i].displayState) { + return true; + } + } + return false; + } + + // We don't need to recompute the cues' display states. Just reuse them. + if (!shouldCompute(cues)) { + for (var i = 0; i < cues.length; i++) { + paddedOverlay.appendChild(cues[i].displayState); + } + return; + } + + var boxPositions = [], + containerBox = BoxPosition.getSimpleBoxPosition(paddedOverlay), + fontSize = Math.round(containerBox.height * FONT_SIZE_PERCENT * 100) / 100; + var styleOptions = { + font: fontSize + "px " + FONT_STYLE + }; + + (function() { + var styleBox, cue; + + for (var i = 0; i < cues.length; i++) { + cue = cues[i]; + + // Compute the intial position and styles of the cue div. + styleBox = new CueStyleBox(window, cue, styleOptions); + paddedOverlay.appendChild(styleBox.div); + + // Move the cue div to it's correct line position. + moveBoxToLinePosition(window, styleBox, containerBox, boxPositions); + + // Remember the computed div so that we don't have to recompute it later + // if we don't have too. + cue.displayState = styleBox.div; + + boxPositions.push(BoxPosition.getSimpleBoxPosition(styleBox)); + } + })(); + }; + + WebVTT$1.Parser = function(window, vttjs, decoder) { + if (!decoder) { + decoder = vttjs; + vttjs = {}; + } + if (!vttjs) { + vttjs = {}; + } + + this.window = window; + this.vttjs = vttjs; + this.state = "INITIAL"; + this.buffer = ""; + this.decoder = decoder || new TextDecoder("utf8"); + this.regionList = []; + }; + + WebVTT$1.Parser.prototype = { + // If the error is a ParsingError then report it to the consumer if + // possible. If it's not a ParsingError then throw it like normal. + reportOrThrowError: function(e) { + if (e instanceof ParsingError) { + this.onparsingerror && this.onparsingerror(e); + } else { + throw e; + } + }, + parse: function (data) { + var self = this; + + // If there is no data then we won't decode it, but will just try to parse + // whatever is in buffer already. This may occur in circumstances, for + // example when flush() is called. + if (data) { + // Try to decode the data that we received. + self.buffer += self.decoder.decode(data, {stream: true}); + } + + function collectNextLine() { + var buffer = self.buffer; + var pos = 0; + while (pos < buffer.length && buffer[pos] !== '\r' && buffer[pos] !== '\n') { + ++pos; + } + var line = buffer.substr(0, pos); + // Advance the buffer early in case we fail below. + if (buffer[pos] === '\r') { + ++pos; + } + if (buffer[pos] === '\n') { + ++pos; + } + self.buffer = buffer.substr(pos); + return line; + } + + // 3.4 WebVTT region and WebVTT region settings syntax + function parseRegion(input) { + var settings = new Settings(); + + parseOptions(input, function (k, v) { + switch (k) { + case "id": + settings.set(k, v); + break; + case "width": + settings.percent(k, v); + break; + case "lines": + settings.integer(k, v); + break; + case "regionanchor": + case "viewportanchor": + var xy = v.split(','); + if (xy.length !== 2) { + break; + } + // We have to make sure both x and y parse, so use a temporary + // settings object here. + var anchor = new Settings(); + anchor.percent("x", xy[0]); + anchor.percent("y", xy[1]); + if (!anchor.has("x") || !anchor.has("y")) { + break; + } + settings.set(k + "X", anchor.get("x")); + settings.set(k + "Y", anchor.get("y")); + break; + case "scroll": + settings.alt(k, v, ["up"]); + break; + } + }, /=/, /\s/); + + // Create the region, using default values for any values that were not + // specified. + if (settings.has("id")) { + var region = new (self.vttjs.VTTRegion || self.window.VTTRegion)(); + region.width = settings.get("width", 100); + region.lines = settings.get("lines", 3); + region.regionAnchorX = settings.get("regionanchorX", 0); + region.regionAnchorY = settings.get("regionanchorY", 100); + region.viewportAnchorX = settings.get("viewportanchorX", 0); + region.viewportAnchorY = settings.get("viewportanchorY", 100); + region.scroll = settings.get("scroll", ""); + // Register the region. + self.onregion && self.onregion(region); + // Remember the VTTRegion for later in case we parse any VTTCues that + // reference it. + self.regionList.push({ + id: settings.get("id"), + region: region + }); + } + } + + // draft-pantos-http-live-streaming-20 + // https://tools.ietf.org/html/draft-pantos-http-live-streaming-20#section-3.5 + // 3.5 WebVTT + function parseTimestampMap(input) { + var settings = new Settings(); + + parseOptions(input, function(k, v) { + switch(k) { + case "MPEGT": + settings.integer(k + 'S', v); + break; + case "LOCA": + settings.set(k + 'L', parseTimeStamp(v)); + break; + } + }, /[^\d]:/, /,/); + + self.ontimestampmap && self.ontimestampmap({ + "MPEGTS": settings.get("MPEGTS"), + "LOCAL": settings.get("LOCAL") + }); + } + + // 3.2 WebVTT metadata header syntax + function parseHeader(input) { + if (input.match(/X-TIMESTAMP-MAP/)) { + // This line contains HLS X-TIMESTAMP-MAP metadata + parseOptions(input, function(k, v) { + switch(k) { + case "X-TIMESTAMP-MAP": + parseTimestampMap(v); + break; + } + }, /=/); + } else { + parseOptions(input, function (k, v) { + switch (k) { + case "Region": + // 3.3 WebVTT region metadata header syntax + parseRegion(v); + break; + } + }, /:/); + } + + } + + // 5.1 WebVTT file parsing. + try { + var line; + if (self.state === "INITIAL") { + // We can't start parsing until we have the first line. + if (!/\r\n|\n/.test(self.buffer)) { + return this; + } + + line = collectNextLine(); + + var m = line.match(/^WEBVTT([ \t].*)?$/); + if (!m || !m[0]) { + throw new ParsingError(ParsingError.Errors.BadSignature); + } + + self.state = "HEADER"; + } + + var alreadyCollectedLine = false; + while (self.buffer) { + // We can't parse a line until we have the full line. + if (!/\r\n|\n/.test(self.buffer)) { + return this; + } + + if (!alreadyCollectedLine) { + line = collectNextLine(); + } else { + alreadyCollectedLine = false; + } + + switch (self.state) { + case "HEADER": + // 13-18 - Allow a header (metadata) under the WEBVTT line. + if (/:/.test(line)) { + parseHeader(line); + } else if (!line) { + // An empty line terminates the header and starts the body (cues). + self.state = "ID"; + } + continue; + case "NOTE": + // Ignore NOTE blocks. + if (!line) { + self.state = "ID"; + } + continue; + case "ID": + // Check for the start of NOTE blocks. + if (/^NOTE($|[ \t])/.test(line)) { + self.state = "NOTE"; + break; + } + // 19-29 - Allow any number of line terminators, then initialize new cue values. + if (!line) { + continue; + } + self.cue = new (self.vttjs.VTTCue || self.window.VTTCue)(0, 0, ""); + // Safari still uses the old middle value and won't accept center + try { + self.cue.align = "center"; + } catch (e) { + self.cue.align = "middle"; + } + self.state = "CUE"; + // 30-39 - Check if self line contains an optional identifier or timing data. + if (line.indexOf("-->") === -1) { + self.cue.id = line; + continue; + } + // Process line as start of a cue. + /*falls through*/ + case "CUE": + // 40 - Collect cue timings and settings. + try { + parseCue(line, self.cue, self.regionList); + } catch (e) { + self.reportOrThrowError(e); + // In case of an error ignore rest of the cue. + self.cue = null; + self.state = "BADCUE"; + continue; + } + self.state = "CUETEXT"; + continue; + case "CUETEXT": + var hasSubstring = line.indexOf("-->") !== -1; + // 34 - If we have an empty line then report the cue. + // 35 - If we have the special substring '-->' then report the cue, + // but do not collect the line as we need to process the current + // one as a new cue. + if (!line || hasSubstring && (alreadyCollectedLine = true)) { + // We are done parsing self cue. + self.oncue && self.oncue(self.cue); + self.cue = null; + self.state = "ID"; + continue; + } + if (self.cue.text) { + self.cue.text += "\n"; + } + self.cue.text += line.replace(/\u2028/g, '\n').replace(/u2029/g, '\n'); + continue; + case "BADCUE": // BADCUE + // 54-62 - Collect and discard the remaining cue. + if (!line) { + self.state = "ID"; + } + continue; + } + } + } catch (e) { + self.reportOrThrowError(e); + + // If we are currently parsing a cue, report what we have. + if (self.state === "CUETEXT" && self.cue && self.oncue) { + self.oncue(self.cue); + } + self.cue = null; + // Enter BADWEBVTT state if header was not parsed correctly otherwise + // another exception occurred so enter BADCUE state. + self.state = self.state === "INITIAL" ? "BADWEBVTT" : "BADCUE"; + } + return this; + }, + flush: function () { + var self = this; + try { + // Finish decoding the stream. + self.buffer += self.decoder.decode(); + // Synthesize the end of the current cue or region. + if (self.cue || self.state === "HEADER") { + self.buffer += "\n\n"; + self.parse(); + } + // If we've flushed, parsed, and we're still on the INITIAL state then + // that means we don't have enough of the stream to parse the first + // line. + if (self.state === "INITIAL") { + throw new ParsingError(ParsingError.Errors.BadSignature); + } + } catch(e) { + self.reportOrThrowError(e); + } + self.onflush && self.onflush(); + return this; + } + }; + + var vtt = WebVTT$1; + + /** + * Copyright 2013 vtt.js Contributors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + + var autoKeyword = "auto"; + var directionSetting = { + "": 1, + "lr": 1, + "rl": 1 + }; + var alignSetting = { + "start": 1, + "center": 1, + "end": 1, + "left": 1, + "right": 1, + "auto": 1, + "line-left": 1, + "line-right": 1 + }; + + function findDirectionSetting(value) { + if (typeof value !== "string") { + return false; + } + var dir = directionSetting[value.toLowerCase()]; + return dir ? value.toLowerCase() : false; + } + + function findAlignSetting(value) { + if (typeof value !== "string") { + return false; + } + var align = alignSetting[value.toLowerCase()]; + return align ? value.toLowerCase() : false; + } + + function VTTCue(startTime, endTime, text) { + /** + * Shim implementation specific properties. These properties are not in + * the spec. + */ + + // Lets us know when the VTTCue's data has changed in such a way that we need + // to recompute its display state. This lets us compute its display state + // lazily. + this.hasBeenReset = false; + + /** + * VTTCue and TextTrackCue properties + * http://dev.w3.org/html5/webvtt/#vttcue-interface + */ + + var _id = ""; + var _pauseOnExit = false; + var _startTime = startTime; + var _endTime = endTime; + var _text = text; + var _region = null; + var _vertical = ""; + var _snapToLines = true; + var _line = "auto"; + var _lineAlign = "start"; + var _position = "auto"; + var _positionAlign = "auto"; + var _size = 100; + var _align = "center"; + + Object.defineProperties(this, { + "id": { + enumerable: true, + get: function() { + return _id; + }, + set: function(value) { + _id = "" + value; + } + }, + + "pauseOnExit": { + enumerable: true, + get: function() { + return _pauseOnExit; + }, + set: function(value) { + _pauseOnExit = !!value; + } + }, + + "startTime": { + enumerable: true, + get: function() { + return _startTime; + }, + set: function(value) { + if (typeof value !== "number") { + throw new TypeError("Start time must be set to a number."); + } + _startTime = value; + this.hasBeenReset = true; + } + }, + + "endTime": { + enumerable: true, + get: function() { + return _endTime; + }, + set: function(value) { + if (typeof value !== "number") { + throw new TypeError("End time must be set to a number."); + } + _endTime = value; + this.hasBeenReset = true; + } + }, + + "text": { + enumerable: true, + get: function() { + return _text; + }, + set: function(value) { + _text = "" + value; + this.hasBeenReset = true; + } + }, + + "region": { + enumerable: true, + get: function() { + return _region; + }, + set: function(value) { + _region = value; + this.hasBeenReset = true; + } + }, + + "vertical": { + enumerable: true, + get: function() { + return _vertical; + }, + set: function(value) { + var setting = findDirectionSetting(value); + // Have to check for false because the setting an be an empty string. + if (setting === false) { + throw new SyntaxError("Vertical: an invalid or illegal direction string was specified."); + } + _vertical = setting; + this.hasBeenReset = true; + } + }, + + "snapToLines": { + enumerable: true, + get: function() { + return _snapToLines; + }, + set: function(value) { + _snapToLines = !!value; + this.hasBeenReset = true; + } + }, + + "line": { + enumerable: true, + get: function() { + return _line; + }, + set: function(value) { + if (typeof value !== "number" && value !== autoKeyword) { + throw new SyntaxError("Line: an invalid number or illegal string was specified."); + } + _line = value; + this.hasBeenReset = true; + } + }, + + "lineAlign": { + enumerable: true, + get: function() { + return _lineAlign; + }, + set: function(value) { + var setting = findAlignSetting(value); + if (!setting) { + console.warn("lineAlign: an invalid or illegal string was specified."); + } else { + _lineAlign = setting; + this.hasBeenReset = true; + } + } + }, + + "position": { + enumerable: true, + get: function() { + return _position; + }, + set: function(value) { + if (value < 0 || value > 100) { + throw new Error("Position must be between 0 and 100."); + } + _position = value; + this.hasBeenReset = true; + } + }, + + "positionAlign": { + enumerable: true, + get: function() { + return _positionAlign; + }, + set: function(value) { + var setting = findAlignSetting(value); + if (!setting) { + console.warn("positionAlign: an invalid or illegal string was specified."); + } else { + _positionAlign = setting; + this.hasBeenReset = true; + } + } + }, + + "size": { + enumerable: true, + get: function() { + return _size; + }, + set: function(value) { + if (value < 0 || value > 100) { + throw new Error("Size must be between 0 and 100."); + } + _size = value; + this.hasBeenReset = true; + } + }, + + "align": { + enumerable: true, + get: function() { + return _align; + }, + set: function(value) { + var setting = findAlignSetting(value); + if (!setting) { + throw new SyntaxError("align: an invalid or illegal alignment string was specified."); + } + _align = setting; + this.hasBeenReset = true; + } + } + }); + + /** + * Other spec defined properties + */ + + // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#text-track-cue-display-state + this.displayState = undefined; + } + + /** + * VTTCue methods + */ + + VTTCue.prototype.getCueAsHTML = function() { + // Assume WebVTT.convertCueToDOMTree is on the global. + return WebVTT.convertCueToDOMTree(window, this.text); + }; + + var vttcue = VTTCue; + + /** + * Copyright 2013 vtt.js Contributors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + + var scrollSetting = { + "": true, + "up": true + }; + + function findScrollSetting(value) { + if (typeof value !== "string") { + return false; + } + var scroll = scrollSetting[value.toLowerCase()]; + return scroll ? value.toLowerCase() : false; + } + + function isValidPercentValue(value) { + return typeof value === "number" && (value >= 0 && value <= 100); + } + + // VTTRegion shim http://dev.w3.org/html5/webvtt/#vttregion-interface + function VTTRegion() { + var _width = 100; + var _lines = 3; + var _regionAnchorX = 0; + var _regionAnchorY = 100; + var _viewportAnchorX = 0; + var _viewportAnchorY = 100; + var _scroll = ""; + + Object.defineProperties(this, { + "width": { + enumerable: true, + get: function() { + return _width; + }, + set: function(value) { + if (!isValidPercentValue(value)) { + throw new Error("Width must be between 0 and 100."); + } + _width = value; + } + }, + "lines": { + enumerable: true, + get: function() { + return _lines; + }, + set: function(value) { + if (typeof value !== "number") { + throw new TypeError("Lines must be set to a number."); + } + _lines = value; + } + }, + "regionAnchorY": { + enumerable: true, + get: function() { + return _regionAnchorY; + }, + set: function(value) { + if (!isValidPercentValue(value)) { + throw new Error("RegionAnchorX must be between 0 and 100."); + } + _regionAnchorY = value; + } + }, + "regionAnchorX": { + enumerable: true, + get: function() { + return _regionAnchorX; + }, + set: function(value) { + if(!isValidPercentValue(value)) { + throw new Error("RegionAnchorY must be between 0 and 100."); + } + _regionAnchorX = value; + } + }, + "viewportAnchorY": { + enumerable: true, + get: function() { + return _viewportAnchorY; + }, + set: function(value) { + if (!isValidPercentValue(value)) { + throw new Error("ViewportAnchorY must be between 0 and 100."); + } + _viewportAnchorY = value; + } + }, + "viewportAnchorX": { + enumerable: true, + get: function() { + return _viewportAnchorX; + }, + set: function(value) { + if (!isValidPercentValue(value)) { + throw new Error("ViewportAnchorX must be between 0 and 100."); + } + _viewportAnchorX = value; + } + }, + "scroll": { + enumerable: true, + get: function() { + return _scroll; + }, + set: function(value) { + var setting = findScrollSetting(value); + // Have to check for false as an empty string is a legal value. + if (setting === false) { + console.warn("Scroll: an invalid or illegal string was specified."); + } else { + _scroll = setting; + } + } + } + }); + } + + var vttregion = VTTRegion; + + var browserIndex = createCommonjsModule(function (module) { + /** + * Copyright 2013 vtt.js Contributors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + + // Default exports for Node. Export the extended versions of VTTCue and + // VTTRegion in Node since we likely want the capability to convert back and + // forth between JSON. If we don't then it's not that big of a deal since we're + // off browser. + + + + var vttjs = module.exports = { + WebVTT: vtt, + VTTCue: vttcue, + VTTRegion: vttregion + }; + + window_1.vttjs = vttjs; + window_1.WebVTT = vttjs.WebVTT; + + var cueShim = vttjs.VTTCue; + var regionShim = vttjs.VTTRegion; + var nativeVTTCue = window_1.VTTCue; + var nativeVTTRegion = window_1.VTTRegion; + + vttjs.shim = function() { + window_1.VTTCue = cueShim; + window_1.VTTRegion = regionShim; + }; + + vttjs.restore = function() { + window_1.VTTCue = nativeVTTCue; + window_1.VTTRegion = nativeVTTRegion; + }; + + if (!window_1.VTTCue) { + vttjs.shim(); + } + }); + var browserIndex_1 = browserIndex.WebVTT; + var browserIndex_2 = browserIndex.VTTCue; + var browserIndex_3 = browserIndex.VTTRegion; + + var setPrototypeOf = createCommonjsModule(function (module) { + function _setPrototypeOf(o, p) { + module.exports = _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { + o.__proto__ = p; + return o; + }; + + return _setPrototypeOf(o, p); + } + + module.exports = _setPrototypeOf; + }); + + function _isNativeReflectConstruct() { + if (typeof Reflect === "undefined" || !Reflect.construct) return false; + if (Reflect.construct.sham) return false; + if (typeof Proxy === "function") return true; + + try { + Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); + return true; + } catch (e) { + return false; + } + } + + var isNativeReflectConstruct = _isNativeReflectConstruct; + + var construct = createCommonjsModule(function (module) { + function _construct(Parent, args, Class) { + if (isNativeReflectConstruct()) { + module.exports = _construct = Reflect.construct; + } else { + module.exports = _construct = function _construct(Parent, args, Class) { + var a = [null]; + a.push.apply(a, args); + var Constructor = Function.bind.apply(Parent, a); + var instance = new Constructor(); + if (Class) setPrototypeOf(instance, Class.prototype); + return instance; + }; + } + + return _construct.apply(null, arguments); + } + + module.exports = _construct; + }); + + function _inherits(subClass, superClass) { + if (typeof superClass !== "function" && superClass !== null) { + throw new TypeError("Super expression must either be null or a function"); + } + + subClass.prototype = Object.create(superClass && superClass.prototype, { + constructor: { + value: subClass, + writable: true, + configurable: true + } + }); + if (superClass) setPrototypeOf(subClass, superClass); + } + + var inherits = _inherits; + + var urlToolkit = createCommonjsModule(function (module, exports) { + // see https://tools.ietf.org/html/rfc1808 + + /* jshint ignore:start */ + (function(root) { + /* jshint ignore:end */ + + var URL_REGEX = /^((?:[a-zA-Z0-9+\-.]+:)?)(\/\/[^\/?#]*)?((?:[^\/\?#]*\/)*.*?)??(;.*?)?(\?.*?)?(#.*?)?$/; + var FIRST_SEGMENT_REGEX = /^([^\/?#]*)(.*)$/; + var SLASH_DOT_REGEX = /(?:\/|^)\.(?=\/)/g; + var SLASH_DOT_DOT_REGEX = /(?:\/|^)\.\.\/(?!\.\.\/).*?(?=\/)/g; + + var URLToolkit = { // jshint ignore:line + // If opts.alwaysNormalize is true then the path will always be normalized even when it starts with / or // + // E.g + // With opts.alwaysNormalize = false (default, spec compliant) + // http://a.com/b/cd + /e/f/../g => http://a.com/e/f/../g + // With opts.alwaysNormalize = true (not spec compliant) + // http://a.com/b/cd + /e/f/../g => http://a.com/e/g + buildAbsoluteURL: function(baseURL, relativeURL, opts) { + opts = opts || {}; + // remove any remaining space and CRLF + baseURL = baseURL.trim(); + relativeURL = relativeURL.trim(); + if (!relativeURL) { + // 2a) If the embedded URL is entirely empty, it inherits the + // entire base URL (i.e., is set equal to the base URL) + // and we are done. + if (!opts.alwaysNormalize) { + return baseURL; + } + var basePartsForNormalise = URLToolkit.parseURL(baseURL); + if (!basePartsForNormalise) { + throw new Error('Error trying to parse base URL.'); + } + basePartsForNormalise.path = URLToolkit.normalizePath(basePartsForNormalise.path); + return URLToolkit.buildURLFromParts(basePartsForNormalise); + } + var relativeParts = URLToolkit.parseURL(relativeURL); + if (!relativeParts) { + throw new Error('Error trying to parse relative URL.'); + } + if (relativeParts.scheme) { + // 2b) If the embedded URL starts with a scheme name, it is + // interpreted as an absolute URL and we are done. + if (!opts.alwaysNormalize) { + return relativeURL; + } + relativeParts.path = URLToolkit.normalizePath(relativeParts.path); + return URLToolkit.buildURLFromParts(relativeParts); + } + var baseParts = URLToolkit.parseURL(baseURL); + if (!baseParts) { + throw new Error('Error trying to parse base URL.'); + } + if (!baseParts.netLoc && baseParts.path && baseParts.path[0] !== '/') { + // If netLoc missing and path doesn't start with '/', assume everthing before the first '/' is the netLoc + // This causes 'example.com/a' to be handled as '//example.com/a' instead of '/example.com/a' + var pathParts = FIRST_SEGMENT_REGEX.exec(baseParts.path); + baseParts.netLoc = pathParts[1]; + baseParts.path = pathParts[2]; + } + if (baseParts.netLoc && !baseParts.path) { + baseParts.path = '/'; + } + var builtParts = { + // 2c) Otherwise, the embedded URL inherits the scheme of + // the base URL. + scheme: baseParts.scheme, + netLoc: relativeParts.netLoc, + path: null, + params: relativeParts.params, + query: relativeParts.query, + fragment: relativeParts.fragment + }; + if (!relativeParts.netLoc) { + // 3) If the embedded URL's is non-empty, we skip to + // Step 7. Otherwise, the embedded URL inherits the + // (if any) of the base URL. + builtParts.netLoc = baseParts.netLoc; + // 4) If the embedded URL path is preceded by a slash "/", the + // path is not relative and we skip to Step 7. + if (relativeParts.path[0] !== '/') { + if (!relativeParts.path) { + // 5) If the embedded URL path is empty (and not preceded by a + // slash), then the embedded URL inherits the base URL path + builtParts.path = baseParts.path; + // 5a) if the embedded URL's is non-empty, we skip to + // step 7; otherwise, it inherits the of the base + // URL (if any) and + if (!relativeParts.params) { + builtParts.params = baseParts.params; + // 5b) if the embedded URL's is non-empty, we skip to + // step 7; otherwise, it inherits the of the base + // URL (if any) and we skip to step 7. + if (!relativeParts.query) { + builtParts.query = baseParts.query; + } + } + } else { + // 6) The last segment of the base URL's path (anything + // following the rightmost slash "/", or the entire path if no + // slash is present) is removed and the embedded URL's path is + // appended in its place. + var baseURLPath = baseParts.path; + var newPath = baseURLPath.substring(0, baseURLPath.lastIndexOf('/') + 1) + relativeParts.path; + builtParts.path = URLToolkit.normalizePath(newPath); + } + } + } + if (builtParts.path === null) { + builtParts.path = opts.alwaysNormalize ? URLToolkit.normalizePath(relativeParts.path) : relativeParts.path; + } + return URLToolkit.buildURLFromParts(builtParts); + }, + parseURL: function(url) { + var parts = URL_REGEX.exec(url); + if (!parts) { + return null; + } + return { + scheme: parts[1] || '', + netLoc: parts[2] || '', + path: parts[3] || '', + params: parts[4] || '', + query: parts[5] || '', + fragment: parts[6] || '' + }; + }, + normalizePath: function(path) { + // The following operations are + // then applied, in order, to the new path: + // 6a) All occurrences of "./", where "." is a complete path + // segment, are removed. + // 6b) If the path ends with "." as a complete path segment, + // that "." is removed. + path = path.split('').reverse().join('').replace(SLASH_DOT_REGEX, ''); + // 6c) All occurrences of "/../", where is a + // complete path segment not equal to "..", are removed. + // Removal of these path segments is performed iteratively, + // removing the leftmost matching pattern on each iteration, + // until no matching pattern remains. + // 6d) If the path ends with "/..", where is a + // complete path segment not equal to "..", that + // "/.." is removed. + while (path.length !== (path = path.replace(SLASH_DOT_DOT_REGEX, '')).length) {} // jshint ignore:line + return path.split('').reverse().join(''); + }, + buildURLFromParts: function(parts) { + return parts.scheme + parts.netLoc + parts.path + parts.params + parts.query + parts.fragment; + } + }; + + /* jshint ignore:start */ + module.exports = URLToolkit; + })(); + /* jshint ignore:end */ + }); + + /*! @name m3u8-parser @version 4.4.0 @license Apache-2.0 */ + + function _extends() { + _extends = Object.assign || function (target) { + for (var i = 1; i < arguments.length; i++) { + var source = arguments[i]; + + for (var key in source) { + if (Object.prototype.hasOwnProperty.call(source, key)) { + target[key] = source[key]; + } + } + } + + return target; + }; + + return _extends.apply(this, arguments); + } + + function _inheritsLoose$1(subClass, superClass) { + subClass.prototype = Object.create(superClass.prototype); + subClass.prototype.constructor = subClass; + subClass.__proto__ = superClass; + } + + function _assertThisInitialized$1(self) { + if (self === void 0) { + throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); + } + + return self; + } + + /** + * @file stream.js + */ + + /** + * A lightweight readable stream implementation that handles event dispatching. + * + * @class Stream + */ + var Stream = + /*#__PURE__*/ + function () { + function Stream() { + this.listeners = {}; + } + /** + * Add a listener for a specified event type. + * + * @param {string} type the event name + * @param {Function} listener the callback to be invoked when an event of + * the specified type occurs + */ + + + var _proto = Stream.prototype; + + _proto.on = function on(type, listener) { + if (!this.listeners[type]) { + this.listeners[type] = []; + } + + this.listeners[type].push(listener); + } + /** + * Remove a listener for a specified event type. + * + * @param {string} type the event name + * @param {Function} listener a function previously registered for this + * type of event through `on` + * @return {boolean} if we could turn it off or not + */ + ; + + _proto.off = function off(type, listener) { + if (!this.listeners[type]) { + return false; + } + + var index = this.listeners[type].indexOf(listener); + this.listeners[type].splice(index, 1); + return index > -1; + } + /** + * Trigger an event of the specified type on this stream. Any additional + * arguments to this function are passed as parameters to event listeners. + * + * @param {string} type the event name + */ + ; + + _proto.trigger = function trigger(type) { + var callbacks = this.listeners[type]; + var i; + var length; + var args; + + if (!callbacks) { + return; + } // Slicing the arguments on every invocation of this method + // can add a significant amount of overhead. Avoid the + // intermediate object creation for the common case of a + // single callback argument + + + if (arguments.length === 2) { + length = callbacks.length; + + for (i = 0; i < length; ++i) { + callbacks[i].call(this, arguments[1]); + } + } else { + args = Array.prototype.slice.call(arguments, 1); + length = callbacks.length; + + for (i = 0; i < length; ++i) { + callbacks[i].apply(this, args); + } + } + } + /** + * Destroys the stream and cleans up. + */ + ; + + _proto.dispose = function dispose() { + this.listeners = {}; + } + /** + * Forwards all `data` events on this stream to the destination stream. The + * destination stream should provide a method `push` to receive the data + * events as they arrive. + * + * @param {Stream} destination the stream that will receive all `data` events + * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options + */ + ; + + _proto.pipe = function pipe(destination) { + this.on('data', function (data) { + destination.push(data); + }); + }; + + return Stream; + }(); + + /** + * A stream that buffers string input and generates a `data` event for each + * line. + * + * @class LineStream + * @extends Stream + */ + + var LineStream = + /*#__PURE__*/ + function (_Stream) { + _inheritsLoose$1(LineStream, _Stream); + + function LineStream() { + var _this; + + _this = _Stream.call(this) || this; + _this.buffer = ''; + return _this; + } + /** + * Add new data to be parsed. + * + * @param {string} data the text to process + */ + + + var _proto = LineStream.prototype; + + _proto.push = function push(data) { + var nextNewline; + this.buffer += data; + nextNewline = this.buffer.indexOf('\n'); + + for (; nextNewline > -1; nextNewline = this.buffer.indexOf('\n')) { + this.trigger('data', this.buffer.substring(0, nextNewline)); + this.buffer = this.buffer.substring(nextNewline + 1); + } + }; + + return LineStream; + }(Stream); + + /** + * "forgiving" attribute list psuedo-grammar: + * attributes -> keyvalue (',' keyvalue)* + * keyvalue -> key '=' value + * key -> [^=]* + * value -> '"' [^"]* '"' | [^,]* + */ + + var attributeSeparator = function attributeSeparator() { + var key = '[^=]*'; + var value = '"[^"]*"|[^,]*'; + var keyvalue = '(?:' + key + ')=(?:' + value + ')'; + return new RegExp('(?:^|,)(' + keyvalue + ')'); + }; + /** + * Parse attributes from a line given the separator + * + * @param {string} attributes the attribute line to parse + */ + + + var parseAttributes = function parseAttributes(attributes) { + // split the string using attributes as the separator + var attrs = attributes.split(attributeSeparator()); + var result = {}; + var i = attrs.length; + var attr; + + while (i--) { + // filter out unmatched portions of the string + if (attrs[i] === '') { + continue; + } // split the key and value + + + attr = /([^=]*)=(.*)/.exec(attrs[i]).slice(1); // trim whitespace and remove optional quotes around the value + + attr[0] = attr[0].replace(/^\s+|\s+$/g, ''); + attr[1] = attr[1].replace(/^\s+|\s+$/g, ''); + attr[1] = attr[1].replace(/^['"](.*)['"]$/g, '$1'); + result[attr[0]] = attr[1]; + } + + return result; + }; + /** + * A line-level M3U8 parser event stream. It expects to receive input one + * line at a time and performs a context-free parse of its contents. A stream + * interpretation of a manifest can be useful if the manifest is expected to + * be too large to fit comfortably into memory or the entirety of the input + * is not immediately available. Otherwise, it's probably much easier to work + * with a regular `Parser` object. + * + * Produces `data` events with an object that captures the parser's + * interpretation of the input. That object has a property `tag` that is one + * of `uri`, `comment`, or `tag`. URIs only have a single additional + * property, `line`, which captures the entirety of the input without + * interpretation. Comments similarly have a single additional property + * `text` which is the input without the leading `#`. + * + * Tags always have a property `tagType` which is the lower-cased version of + * the M3U8 directive without the `#EXT` or `#EXT-X-` prefix. For instance, + * `#EXT-X-MEDIA-SEQUENCE` becomes `media-sequence` when parsed. Unrecognized + * tags are given the tag type `unknown` and a single additional property + * `data` with the remainder of the input. + * + * @class ParseStream + * @extends Stream + */ + + + var ParseStream = + /*#__PURE__*/ + function (_Stream) { + _inheritsLoose$1(ParseStream, _Stream); + + function ParseStream() { + var _this; + + _this = _Stream.call(this) || this; + _this.customParsers = []; + _this.tagMappers = []; + return _this; + } + /** + * Parses an additional line of input. + * + * @param {string} line a single line of an M3U8 file to parse + */ + + + var _proto = ParseStream.prototype; + + _proto.push = function push(line) { + var _this2 = this; + + var match; + var event; // strip whitespace + + line = line.trim(); + + if (line.length === 0) { + // ignore empty lines + return; + } // URIs + + + if (line[0] !== '#') { + this.trigger('data', { + type: 'uri', + uri: line + }); + return; + } // map tags + + + var newLines = this.tagMappers.reduce(function (acc, mapper) { + var mappedLine = mapper(line); // skip if unchanged + + if (mappedLine === line) { + return acc; + } + + return acc.concat([mappedLine]); + }, [line]); + newLines.forEach(function (newLine) { + for (var i = 0; i < _this2.customParsers.length; i++) { + if (_this2.customParsers[i].call(_this2, newLine)) { + return; + } + } // Comments + + + if (newLine.indexOf('#EXT') !== 0) { + _this2.trigger('data', { + type: 'comment', + text: newLine.slice(1) + }); + + return; + } // strip off any carriage returns here so the regex matching + // doesn't have to account for them. + + + newLine = newLine.replace('\r', ''); // Tags + + match = /^#EXTM3U/.exec(newLine); + + if (match) { + _this2.trigger('data', { + type: 'tag', + tagType: 'm3u' + }); + + return; + } + + match = /^#EXTINF:?([0-9\.]*)?,?(.*)?$/.exec(newLine); + + if (match) { + event = { + type: 'tag', + tagType: 'inf' + }; + + if (match[1]) { + event.duration = parseFloat(match[1]); + } + + if (match[2]) { + event.title = match[2]; + } + + _this2.trigger('data', event); + + return; + } + + match = /^#EXT-X-TARGETDURATION:?([0-9.]*)?/.exec(newLine); + + if (match) { + event = { + type: 'tag', + tagType: 'targetduration' + }; + + if (match[1]) { + event.duration = parseInt(match[1], 10); + } + + _this2.trigger('data', event); + + return; + } + + match = /^#ZEN-TOTAL-DURATION:?([0-9.]*)?/.exec(newLine); + + if (match) { + event = { + type: 'tag', + tagType: 'totalduration' + }; + + if (match[1]) { + event.duration = parseInt(match[1], 10); + } + + _this2.trigger('data', event); + + return; + } + + match = /^#EXT-X-VERSION:?([0-9.]*)?/.exec(newLine); + + if (match) { + event = { + type: 'tag', + tagType: 'version' + }; + + if (match[1]) { + event.version = parseInt(match[1], 10); + } + + _this2.trigger('data', event); + + return; + } + + match = /^#EXT-X-MEDIA-SEQUENCE:?(\-?[0-9.]*)?/.exec(newLine); + + if (match) { + event = { + type: 'tag', + tagType: 'media-sequence' + }; + + if (match[1]) { + event.number = parseInt(match[1], 10); + } + + _this2.trigger('data', event); + + return; + } + + match = /^#EXT-X-DISCONTINUITY-SEQUENCE:?(\-?[0-9.]*)?/.exec(newLine); + + if (match) { + event = { + type: 'tag', + tagType: 'discontinuity-sequence' + }; + + if (match[1]) { + event.number = parseInt(match[1], 10); + } + + _this2.trigger('data', event); + + return; + } + + match = /^#EXT-X-PLAYLIST-TYPE:?(.*)?$/.exec(newLine); + + if (match) { + event = { + type: 'tag', + tagType: 'playlist-type' + }; + + if (match[1]) { + event.playlistType = match[1]; + } + + _this2.trigger('data', event); + + return; + } + + match = /^#EXT-X-BYTERANGE:?([0-9.]*)?@?([0-9.]*)?/.exec(newLine); + + if (match) { + event = { + type: 'tag', + tagType: 'byterange' + }; + + if (match[1]) { + event.length = parseInt(match[1], 10); + } + + if (match[2]) { + event.offset = parseInt(match[2], 10); + } + + _this2.trigger('data', event); + + return; + } + + match = /^#EXT-X-ALLOW-CACHE:?(YES|NO)?/.exec(newLine); + + if (match) { + event = { + type: 'tag', + tagType: 'allow-cache' + }; + + if (match[1]) { + event.allowed = !/NO/.test(match[1]); + } + + _this2.trigger('data', event); + + return; + } + + match = /^#EXT-X-MAP:?(.*)$/.exec(newLine); + + if (match) { + event = { + type: 'tag', + tagType: 'map' + }; + + if (match[1]) { + var attributes = parseAttributes(match[1]); + + if (attributes.URI) { + event.uri = attributes.URI; + } + + if (attributes.BYTERANGE) { + var _attributes$BYTERANGE = attributes.BYTERANGE.split('@'), + length = _attributes$BYTERANGE[0], + offset = _attributes$BYTERANGE[1]; + + event.byterange = {}; + + if (length) { + event.byterange.length = parseInt(length, 10); + } + + if (offset) { + event.byterange.offset = parseInt(offset, 10); + } + } + } + + _this2.trigger('data', event); + + return; + } + + match = /^#EXT-X-STREAM-INF:?(.*)$/.exec(newLine); + + if (match) { + event = { + type: 'tag', + tagType: 'stream-inf' + }; + + if (match[1]) { + event.attributes = parseAttributes(match[1]); + + if (event.attributes.RESOLUTION) { + var split = event.attributes.RESOLUTION.split('x'); + var resolution = {}; + + if (split[0]) { + resolution.width = parseInt(split[0], 10); + } + + if (split[1]) { + resolution.height = parseInt(split[1], 10); + } + + event.attributes.RESOLUTION = resolution; + } + + if (event.attributes.BANDWIDTH) { + event.attributes.BANDWIDTH = parseInt(event.attributes.BANDWIDTH, 10); + } + + if (event.attributes['PROGRAM-ID']) { + event.attributes['PROGRAM-ID'] = parseInt(event.attributes['PROGRAM-ID'], 10); + } + } + + _this2.trigger('data', event); + + return; + } + + match = /^#EXT-X-MEDIA:?(.*)$/.exec(newLine); + + if (match) { + event = { + type: 'tag', + tagType: 'media' + }; + + if (match[1]) { + event.attributes = parseAttributes(match[1]); + } + + _this2.trigger('data', event); + + return; + } + + match = /^#EXT-X-ENDLIST/.exec(newLine); + + if (match) { + _this2.trigger('data', { + type: 'tag', + tagType: 'endlist' + }); + + return; + } + + match = /^#EXT-X-DISCONTINUITY/.exec(newLine); + + if (match) { + _this2.trigger('data', { + type: 'tag', + tagType: 'discontinuity' + }); + + return; + } + + match = /^#EXT-X-PROGRAM-DATE-TIME:?(.*)$/.exec(newLine); + + if (match) { + event = { + type: 'tag', + tagType: 'program-date-time' + }; + + if (match[1]) { + event.dateTimeString = match[1]; + event.dateTimeObject = new Date(match[1]); + } + + _this2.trigger('data', event); + + return; + } + + match = /^#EXT-X-KEY:?(.*)$/.exec(newLine); + + if (match) { + event = { + type: 'tag', + tagType: 'key' + }; + + if (match[1]) { + event.attributes = parseAttributes(match[1]); // parse the IV string into a Uint32Array + + if (event.attributes.IV) { + if (event.attributes.IV.substring(0, 2).toLowerCase() === '0x') { + event.attributes.IV = event.attributes.IV.substring(2); + } + + event.attributes.IV = event.attributes.IV.match(/.{8}/g); + event.attributes.IV[0] = parseInt(event.attributes.IV[0], 16); + event.attributes.IV[1] = parseInt(event.attributes.IV[1], 16); + event.attributes.IV[2] = parseInt(event.attributes.IV[2], 16); + event.attributes.IV[3] = parseInt(event.attributes.IV[3], 16); + event.attributes.IV = new Uint32Array(event.attributes.IV); + } + } + + _this2.trigger('data', event); + + return; + } + + match = /^#EXT-X-START:?(.*)$/.exec(newLine); + + if (match) { + event = { + type: 'tag', + tagType: 'start' + }; + + if (match[1]) { + event.attributes = parseAttributes(match[1]); + event.attributes['TIME-OFFSET'] = parseFloat(event.attributes['TIME-OFFSET']); + event.attributes.PRECISE = /YES/.test(event.attributes.PRECISE); + } + + _this2.trigger('data', event); + + return; + } + + match = /^#EXT-X-CUE-OUT-CONT:?(.*)?$/.exec(newLine); + + if (match) { + event = { + type: 'tag', + tagType: 'cue-out-cont' + }; + + if (match[1]) { + event.data = match[1]; + } else { + event.data = ''; + } + + _this2.trigger('data', event); + + return; + } + + match = /^#EXT-X-CUE-OUT:?(.*)?$/.exec(newLine); + + if (match) { + event = { + type: 'tag', + tagType: 'cue-out' + }; + + if (match[1]) { + event.data = match[1]; + } else { + event.data = ''; + } + + _this2.trigger('data', event); + + return; + } + + match = /^#EXT-X-CUE-IN:?(.*)?$/.exec(newLine); + + if (match) { + event = { + type: 'tag', + tagType: 'cue-in' + }; + + if (match[1]) { + event.data = match[1]; + } else { + event.data = ''; + } + + _this2.trigger('data', event); + + return; + } // unknown tag type + + + _this2.trigger('data', { + type: 'tag', + data: newLine.slice(4) + }); + }); + } + /** + * Add a parser for custom headers + * + * @param {Object} options a map of options for the added parser + * @param {RegExp} options.expression a regular expression to match the custom header + * @param {string} options.customType the custom type to register to the output + * @param {Function} [options.dataParser] function to parse the line into an object + * @param {boolean} [options.segment] should tag data be attached to the segment object + */ + ; + + _proto.addParser = function addParser(_ref) { + var _this3 = this; + + var expression = _ref.expression, + customType = _ref.customType, + dataParser = _ref.dataParser, + segment = _ref.segment; + + if (typeof dataParser !== 'function') { + dataParser = function dataParser(line) { + return line; + }; + } + + this.customParsers.push(function (line) { + var match = expression.exec(line); + + if (match) { + _this3.trigger('data', { + type: 'custom', + data: dataParser(line), + customType: customType, + segment: segment + }); + + return true; + } + }); + } + /** + * Add a custom header mapper + * + * @param {Object} options + * @param {RegExp} options.expression a regular expression to match the custom header + * @param {Function} options.map function to translate tag into a different tag + */ + ; + + _proto.addTagMapper = function addTagMapper(_ref2) { + var expression = _ref2.expression, + map = _ref2.map; + + var mapFn = function mapFn(line) { + if (expression.test(line)) { + return map(line); + } + + return line; + }; + + this.tagMappers.push(mapFn); + }; + + return ParseStream; + }(Stream); + + function decodeB64ToUint8Array(b64Text) { + var decodedString = window_1.atob(b64Text || ''); + var array = new Uint8Array(decodedString.length); + + for (var i = 0; i < decodedString.length; i++) { + array[i] = decodedString.charCodeAt(i); + } + + return array; + } + + /** + * A parser for M3U8 files. The current interpretation of the input is + * exposed as a property `manifest` on parser objects. It's just two lines to + * create and parse a manifest once you have the contents available as a string: + * + * ```js + * var parser = new m3u8.Parser(); + * parser.push(xhr.responseText); + * ``` + * + * New input can later be applied to update the manifest object by calling + * `push` again. + * + * The parser attempts to create a usable manifest object even if the + * underlying input is somewhat nonsensical. It emits `info` and `warning` + * events during the parse if it encounters input that seems invalid or + * requires some property of the manifest object to be defaulted. + * + * @class Parser + * @extends Stream + */ + + var Parser = + /*#__PURE__*/ + function (_Stream) { + _inheritsLoose$1(Parser, _Stream); + + function Parser() { + var _this; + + _this = _Stream.call(this) || this; + _this.lineStream = new LineStream(); + _this.parseStream = new ParseStream(); + + _this.lineStream.pipe(_this.parseStream); + /* eslint-disable consistent-this */ + + + var self = _assertThisInitialized$1(_this); + /* eslint-enable consistent-this */ + + + var uris = []; + var currentUri = {}; // if specified, the active EXT-X-MAP definition + + var currentMap; // if specified, the active decryption key + + var _key; + + var noop = function noop() {}; + + var defaultMediaGroups = { + 'AUDIO': {}, + 'VIDEO': {}, + 'CLOSED-CAPTIONS': {}, + 'SUBTITLES': {} + }; // This is the Widevine UUID from DASH IF IOP. The same exact string is + // used in MPDs with Widevine encrypted streams. + + var widevineUuid = 'urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed'; // group segments into numbered timelines delineated by discontinuities + + var currentTimeline = 0; // the manifest is empty until the parse stream begins delivering data + + _this.manifest = { + allowCache: true, + discontinuityStarts: [], + segments: [] + }; // update the manifest with the m3u8 entry from the parse stream + + _this.parseStream.on('data', function (entry) { + var mediaGroup; + var rendition; + ({ + tag: function tag() { + // switch based on the tag type + (({ + 'allow-cache': function allowCache() { + this.manifest.allowCache = entry.allowed; + + if (!('allowed' in entry)) { + this.trigger('info', { + message: 'defaulting allowCache to YES' + }); + this.manifest.allowCache = true; + } + }, + byterange: function byterange() { + var byterange = {}; + + if ('length' in entry) { + currentUri.byterange = byterange; + byterange.length = entry.length; + + if (!('offset' in entry)) { + this.trigger('info', { + message: 'defaulting offset to zero' + }); + entry.offset = 0; + } + } + + if ('offset' in entry) { + currentUri.byterange = byterange; + byterange.offset = entry.offset; + } + }, + endlist: function endlist() { + this.manifest.endList = true; + }, + inf: function inf() { + if (!('mediaSequence' in this.manifest)) { + this.manifest.mediaSequence = 0; + this.trigger('info', { + message: 'defaulting media sequence to zero' + }); + } + + if (!('discontinuitySequence' in this.manifest)) { + this.manifest.discontinuitySequence = 0; + this.trigger('info', { + message: 'defaulting discontinuity sequence to zero' + }); + } + + if (entry.duration > 0) { + currentUri.duration = entry.duration; + } + + if (entry.duration === 0) { + currentUri.duration = 0.01; + this.trigger('info', { + message: 'updating zero segment duration to a small value' + }); + } + + this.manifest.segments = uris; + }, + key: function key() { + if (!entry.attributes) { + this.trigger('warn', { + message: 'ignoring key declaration without attribute list' + }); + return; + } // clear the active encryption key + + + if (entry.attributes.METHOD === 'NONE') { + _key = null; + return; + } + + if (!entry.attributes.URI) { + this.trigger('warn', { + message: 'ignoring key declaration without URI' + }); + return; + } // check if the content is encrypted for Widevine + // Widevine/HLS spec: https://storage.googleapis.com/wvdocs/Widevine_DRM_HLS.pdf + + + if (entry.attributes.KEYFORMAT === widevineUuid) { + var VALID_METHODS = ['SAMPLE-AES', 'SAMPLE-AES-CTR', 'SAMPLE-AES-CENC']; + + if (VALID_METHODS.indexOf(entry.attributes.METHOD) === -1) { + this.trigger('warn', { + message: 'invalid key method provided for Widevine' + }); + return; + } + + if (entry.attributes.METHOD === 'SAMPLE-AES-CENC') { + this.trigger('warn', { + message: 'SAMPLE-AES-CENC is deprecated, please use SAMPLE-AES-CTR instead' + }); + } + + if (entry.attributes.URI.substring(0, 23) !== 'data:text/plain;base64,') { + this.trigger('warn', { + message: 'invalid key URI provided for Widevine' + }); + return; + } + + if (!(entry.attributes.KEYID && entry.attributes.KEYID.substring(0, 2) === '0x')) { + this.trigger('warn', { + message: 'invalid key ID provided for Widevine' + }); + return; + } // if Widevine key attributes are valid, store them as `contentProtection` + // on the manifest to emulate Widevine tag structure in a DASH mpd + + + this.manifest.contentProtection = { + 'com.widevine.alpha': { + attributes: { + schemeIdUri: entry.attributes.KEYFORMAT, + // remove '0x' from the key id string + keyId: entry.attributes.KEYID.substring(2) + }, + // decode the base64-encoded PSSH box + pssh: decodeB64ToUint8Array(entry.attributes.URI.split(',')[1]) + } + }; + return; + } + + if (!entry.attributes.METHOD) { + this.trigger('warn', { + message: 'defaulting key method to AES-128' + }); + } // setup an encryption key for upcoming segments + + + _key = { + method: entry.attributes.METHOD || 'AES-128', + uri: entry.attributes.URI + }; + + if (typeof entry.attributes.IV !== 'undefined') { + _key.iv = entry.attributes.IV; + } + }, + 'media-sequence': function mediaSequence() { + if (!isFinite(entry.number)) { + this.trigger('warn', { + message: 'ignoring invalid media sequence: ' + entry.number + }); + return; + } + + this.manifest.mediaSequence = entry.number; + }, + 'discontinuity-sequence': function discontinuitySequence() { + if (!isFinite(entry.number)) { + this.trigger('warn', { + message: 'ignoring invalid discontinuity sequence: ' + entry.number + }); + return; + } + + this.manifest.discontinuitySequence = entry.number; + currentTimeline = entry.number; + }, + 'playlist-type': function playlistType() { + if (!/VOD|EVENT/.test(entry.playlistType)) { + this.trigger('warn', { + message: 'ignoring unknown playlist type: ' + entry.playlist + }); + return; + } + + this.manifest.playlistType = entry.playlistType; + }, + map: function map() { + currentMap = {}; + + if (entry.uri) { + currentMap.uri = entry.uri; + } + + if (entry.byterange) { + currentMap.byterange = entry.byterange; + } + }, + 'stream-inf': function streamInf() { + this.manifest.playlists = uris; + this.manifest.mediaGroups = this.manifest.mediaGroups || defaultMediaGroups; + + if (!entry.attributes) { + this.trigger('warn', { + message: 'ignoring empty stream-inf attributes' + }); + return; + } + + if (!currentUri.attributes) { + currentUri.attributes = {}; + } + + _extends(currentUri.attributes, entry.attributes); + }, + media: function media() { + this.manifest.mediaGroups = this.manifest.mediaGroups || defaultMediaGroups; + + if (!(entry.attributes && entry.attributes.TYPE && entry.attributes['GROUP-ID'] && entry.attributes.NAME)) { + this.trigger('warn', { + message: 'ignoring incomplete or missing media group' + }); + return; + } // find the media group, creating defaults as necessary + + + var mediaGroupType = this.manifest.mediaGroups[entry.attributes.TYPE]; + mediaGroupType[entry.attributes['GROUP-ID']] = mediaGroupType[entry.attributes['GROUP-ID']] || {}; + mediaGroup = mediaGroupType[entry.attributes['GROUP-ID']]; // collect the rendition metadata + + rendition = { + default: /yes/i.test(entry.attributes.DEFAULT) + }; + + if (rendition.default) { + rendition.autoselect = true; + } else { + rendition.autoselect = /yes/i.test(entry.attributes.AUTOSELECT); + } + + if (entry.attributes.LANGUAGE) { + rendition.language = entry.attributes.LANGUAGE; + } + + if (entry.attributes.URI) { + rendition.uri = entry.attributes.URI; + } + + if (entry.attributes['INSTREAM-ID']) { + rendition.instreamId = entry.attributes['INSTREAM-ID']; + } + + if (entry.attributes.CHARACTERISTICS) { + rendition.characteristics = entry.attributes.CHARACTERISTICS; + } + + if (entry.attributes.FORCED) { + rendition.forced = /yes/i.test(entry.attributes.FORCED); + } // insert the new rendition + + + mediaGroup[entry.attributes.NAME] = rendition; + }, + discontinuity: function discontinuity() { + currentTimeline += 1; + currentUri.discontinuity = true; + this.manifest.discontinuityStarts.push(uris.length); + }, + 'program-date-time': function programDateTime() { + if (typeof this.manifest.dateTimeString === 'undefined') { + // PROGRAM-DATE-TIME is a media-segment tag, but for backwards + // compatibility, we add the first occurence of the PROGRAM-DATE-TIME tag + // to the manifest object + // TODO: Consider removing this in future major version + this.manifest.dateTimeString = entry.dateTimeString; + this.manifest.dateTimeObject = entry.dateTimeObject; + } + + currentUri.dateTimeString = entry.dateTimeString; + currentUri.dateTimeObject = entry.dateTimeObject; + }, + targetduration: function targetduration() { + if (!isFinite(entry.duration) || entry.duration < 0) { + this.trigger('warn', { + message: 'ignoring invalid target duration: ' + entry.duration + }); + return; + } + + this.manifest.targetDuration = entry.duration; + }, + totalduration: function totalduration() { + if (!isFinite(entry.duration) || entry.duration < 0) { + this.trigger('warn', { + message: 'ignoring invalid total duration: ' + entry.duration + }); + return; + } + + this.manifest.totalDuration = entry.duration; + }, + start: function start() { + if (!entry.attributes || isNaN(entry.attributes['TIME-OFFSET'])) { + this.trigger('warn', { + message: 'ignoring start declaration without appropriate attribute list' + }); + return; + } + + this.manifest.start = { + timeOffset: entry.attributes['TIME-OFFSET'], + precise: entry.attributes.PRECISE + }; + }, + 'cue-out': function cueOut() { + currentUri.cueOut = entry.data; + }, + 'cue-out-cont': function cueOutCont() { + currentUri.cueOutCont = entry.data; + }, + 'cue-in': function cueIn() { + currentUri.cueIn = entry.data; + } + })[entry.tagType] || noop).call(self); + }, + uri: function uri() { + currentUri.uri = entry.uri; + uris.push(currentUri); // if no explicit duration was declared, use the target duration + + if (this.manifest.targetDuration && !('duration' in currentUri)) { + this.trigger('warn', { + message: 'defaulting segment duration to the target duration' + }); + currentUri.duration = this.manifest.targetDuration; + } // annotate with encryption information, if necessary + + + if (_key) { + currentUri.key = _key; + } + + currentUri.timeline = currentTimeline; // annotate with initialization segment information, if necessary + + if (currentMap) { + currentUri.map = currentMap; + } // prepare for the next URI + + + currentUri = {}; + }, + comment: function comment() {// comments are not important for playback + }, + custom: function custom() { + // if this is segment-level data attach the output to the segment + if (entry.segment) { + currentUri.custom = currentUri.custom || {}; + currentUri.custom[entry.customType] = entry.data; // if this is manifest-level data attach to the top level manifest object + } else { + this.manifest.custom = this.manifest.custom || {}; + this.manifest.custom[entry.customType] = entry.data; + } + } + })[entry.type].call(self); + }); + + return _this; + } + /** + * Parse the input string and update the manifest object. + * + * @param {string} chunk a potentially incomplete portion of the manifest + */ + + + var _proto = Parser.prototype; + + _proto.push = function push(chunk) { + this.lineStream.push(chunk); + } + /** + * Flush any remaining input. This can be handy if the last line of an M3U8 + * manifest did not contain a trailing newline but the file has been + * completely received. + */ + ; + + _proto.end = function end() { + // flush any buffered input + this.lineStream.push('\n'); + } + /** + * Add an additional parser for non-standard tags + * + * @param {Object} options a map of options for the added parser + * @param {RegExp} options.expression a regular expression to match the custom header + * @param {string} options.type the type to register to the output + * @param {Function} [options.dataParser] function to parse the line into an object + * @param {boolean} [options.segment] should tag data be attached to the segment object + */ + ; + + _proto.addParser = function addParser(options) { + this.parseStream.addParser(options); + } + /** + * Add a custom header mapper + * + * @param {Object} options + * @param {RegExp} options.expression a regular expression to match the custom header + * @param {Function} options.map function to translate tag into a different tag + */ + ; + + _proto.addTagMapper = function addTagMapper(options) { + this.parseStream.addTagMapper(options); + }; + + return Parser; + }(Stream); + + function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; } + + var URLToolkit = _interopDefault(urlToolkit); + var window$1 = _interopDefault(window_1); + + var resolveUrl = function resolveUrl(baseUrl, relativeUrl) { + // return early if we don't need to resolve + if (/^[a-z]+:/i.test(relativeUrl)) { + return relativeUrl; + } // if the base URL is relative then combine with the current location + + + if (!/\/\//i.test(baseUrl)) { + baseUrl = URLToolkit.buildAbsoluteURL(window$1.location && window$1.location.href || '', baseUrl); + } + + return URLToolkit.buildAbsoluteURL(baseUrl, relativeUrl); + }; + + var resolveUrl_1 = resolveUrl; + + function _interopDefault$1 (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; } + + var window$2 = _interopDefault$1(window_1); + + var atob = function atob(s) { + return window$2.atob ? window$2.atob(s) : Buffer.from(s, 'base64').toString('binary'); + }; + + function decodeB64ToUint8Array$1(b64Text) { + var decodedString = atob(b64Text); + var array = new Uint8Array(decodedString.length); + + for (var i = 0; i < decodedString.length; i++) { + array[i] = decodedString.charCodeAt(i); + } + + return array; + } + + var decodeB64ToUint8Array_1 = decodeB64ToUint8Array$1; + + //[4] NameStartChar ::= ":" | [A-Z] | "_" | [a-z] | [#xC0-#xD6] | [#xD8-#xF6] | [#xF8-#x2FF] | [#x370-#x37D] | [#x37F-#x1FFF] | [#x200C-#x200D] | [#x2070-#x218F] | [#x2C00-#x2FEF] | [#x3001-#xD7FF] | [#xF900-#xFDCF] | [#xFDF0-#xFFFD] | [#x10000-#xEFFFF] + //[4a] NameChar ::= NameStartChar | "-" | "." | [0-9] | #xB7 | [#x0300-#x036F] | [#x203F-#x2040] + //[5] Name ::= NameStartChar (NameChar)* + var nameStartChar = /[A-Z_a-z\xC0-\xD6\xD8-\xF6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD]/;//\u10000-\uEFFFF + var nameChar = new RegExp("[\\-\\.0-9"+nameStartChar.source.slice(1,-1)+"\\u00B7\\u0300-\\u036F\\u203F-\\u2040]"); + var tagNamePattern = new RegExp('^'+nameStartChar.source+nameChar.source+'*(?:\:'+nameStartChar.source+nameChar.source+'*)?$'); + //var tagNamePattern = /^[a-zA-Z_][\w\-\.]*(?:\:[a-zA-Z_][\w\-\.]*)?$/ + //var handlers = 'resolveEntity,getExternalSubset,characters,endDocument,endElement,endPrefixMapping,ignorableWhitespace,processingInstruction,setDocumentLocator,skippedEntity,startDocument,startElement,startPrefixMapping,notationDecl,unparsedEntityDecl,error,fatalError,warning,attributeDecl,elementDecl,externalEntityDecl,internalEntityDecl,comment,endCDATA,endDTD,endEntity,startCDATA,startDTD,startEntity'.split(',') + + //S_TAG, S_ATTR, S_EQ, S_ATTR_NOQUOT_VALUE + //S_ATTR_SPACE, S_ATTR_END, S_TAG_SPACE, S_TAG_CLOSE + var S_TAG = 0;//tag name offerring + var S_ATTR = 1;//attr name offerring + var S_ATTR_SPACE=2;//attr name end and space offer + var S_EQ = 3;//=space? + var S_ATTR_NOQUOT_VALUE = 4;//attr value(no quot value only) + var S_ATTR_END = 5;//attr value end and no space(quot end) + var S_TAG_SPACE = 6;//(attr value end || tag end ) && (space offer) + var S_TAG_CLOSE = 7;//closed el + + function XMLReader(){ + + } + + XMLReader.prototype = { + parse:function(source,defaultNSMap,entityMap){ + var domBuilder = this.domBuilder; + domBuilder.startDocument(); + _copy(defaultNSMap ,defaultNSMap = {}); + parse(source,defaultNSMap,entityMap, + domBuilder,this.errorHandler); + domBuilder.endDocument(); + } + }; + function parse(source,defaultNSMapCopy,entityMap,domBuilder,errorHandler){ + function fixedFromCharCode(code) { + // String.prototype.fromCharCode does not supports + // > 2 bytes unicode chars directly + if (code > 0xffff) { + code -= 0x10000; + var surrogate1 = 0xd800 + (code >> 10) + , surrogate2 = 0xdc00 + (code & 0x3ff); + + return String.fromCharCode(surrogate1, surrogate2); + } else { + return String.fromCharCode(code); + } + } + function entityReplacer(a){ + var k = a.slice(1,-1); + if(k in entityMap){ + return entityMap[k]; + }else if(k.charAt(0) === '#'){ + return fixedFromCharCode(parseInt(k.substr(1).replace('x','0x'))) + }else { + errorHandler.error('entity not found:'+a); + return a; + } + } + function appendText(end){//has some bugs + if(end>start){ + var xt = source.substring(start,end).replace(/&#?\w+;/g,entityReplacer); + locator&&position(start); + domBuilder.characters(xt,0,end-start); + start = end; + } + } + function position(p,m){ + while(p>=lineEnd && (m = linePattern.exec(source))){ + lineStart = m.index; + lineEnd = lineStart + m[0].length; + locator.lineNumber++; + //console.log('line++:',locator,startPos,endPos) + } + locator.columnNumber = p-lineStart+1; + } + var lineStart = 0; + var lineEnd = 0; + var linePattern = /.*(?:\r\n?|\n)|.*$/g; + var locator = domBuilder.locator; + + var parseStack = [{currentNSMap:defaultNSMapCopy}]; + var closeMap = {}; + var start = 0; + while(true){ + try{ + var tagStart = source.indexOf('<',start); + if(tagStart<0){ + if(!source.substr(start).match(/^\s*$/)){ + var doc = domBuilder.doc; + var text = doc.createTextNode(source.substr(start)); + doc.appendChild(text); + domBuilder.currentElement = text; + } + return; + } + if(tagStart>start){ + appendText(tagStart); + } + switch(source.charAt(tagStart+1)){ + case '/': + var end = source.indexOf('>',tagStart+3); + var tagName = source.substring(tagStart+2,end); + var config = parseStack.pop(); + if(end<0){ + + tagName = source.substring(tagStart+2).replace(/[\s<].*/,''); + //console.error('#@@@@@@'+tagName) + errorHandler.error("end tag name: "+tagName+' is not complete:'+config.tagName); + end = tagStart+1+tagName.length; + }else if(tagName.match(/\s + locator&&position(tagStart); + end = parseInstruction(source,tagStart,domBuilder); + break; + case '!':// start){ + start = end; + }else { + //TODO: 这里有可能sax回退，有位置错误风险 + appendText(Math.max(tagStart,start)+1); + } + } + } + function copyLocator(f,t){ + t.lineNumber = f.lineNumber; + t.columnNumber = f.columnNumber; + return t; + } + + /** + * @see #appendElement(source,elStartEnd,el,selfClosed,entityReplacer,domBuilder,parseStack); + * @return end of the elementStartPart(end of elementEndPart for selfClosed el) + */ + function parseElementStartPart(source,start,el,currentNSMap,entityReplacer,errorHandler){ + var attrName; + var value; + var p = ++start; + var s = S_TAG;//status + while(true){ + var c = source.charAt(p); + switch(c){ + case '=': + if(s === S_ATTR){//attrName + attrName = source.slice(start,p); + s = S_EQ; + }else if(s === S_ATTR_SPACE){ + s = S_EQ; + }else { + //fatalError: equal must after attrName or space after attrName + throw new Error('attribute equal must after attrName'); + } + break; + case '\'': + case '"': + if(s === S_EQ || s === S_ATTR //|| s == S_ATTR_SPACE + ){//equal + if(s === S_ATTR){ + errorHandler.warning('attribute value must after "="'); + attrName = source.slice(start,p); + } + start = p+1; + p = source.indexOf(c,start); + if(p>0){ + value = source.slice(start,p).replace(/&#?\w+;/g,entityReplacer); + el.add(attrName,value,start-1); + s = S_ATTR_END; + }else { + //fatalError: no end quot match + throw new Error('attribute value no end \''+c+'\' match'); + } + }else if(s == S_ATTR_NOQUOT_VALUE){ + value = source.slice(start,p).replace(/&#?\w+;/g,entityReplacer); + //console.log(attrName,value,start,p) + el.add(attrName,value,start); + //console.dir(el) + errorHandler.warning('attribute "'+attrName+'" missed start quot('+c+')!!'); + start = p+1; + s = S_ATTR_END; + }else { + //fatalError: no equal before + throw new Error('attribute value must after "="'); + } + break; + case '/': + switch(s){ + case S_TAG: + el.setTagName(source.slice(start,p)); + case S_ATTR_END: + case S_TAG_SPACE: + case S_TAG_CLOSE: + s =S_TAG_CLOSE; + el.closed = true; + case S_ATTR_NOQUOT_VALUE: + case S_ATTR: + case S_ATTR_SPACE: + break; + //case S_EQ: + default: + throw new Error("attribute invalid close char('/')") + } + break; + case ''://end document + //throw new Error('unexpected end of input') + errorHandler.error('unexpected end of input'); + if(s == S_TAG){ + el.setTagName(source.slice(start,p)); + } + return p; + case '>': + switch(s){ + case S_TAG: + el.setTagName(source.slice(start,p)); + case S_ATTR_END: + case S_TAG_SPACE: + case S_TAG_CLOSE: + break;//normal + case S_ATTR_NOQUOT_VALUE://Compatible state + case S_ATTR: + value = source.slice(start,p); + if(value.slice(-1) === '/'){ + el.closed = true; + value = value.slice(0,-1); + } + case S_ATTR_SPACE: + if(s === S_ATTR_SPACE){ + value = attrName; + } + if(s == S_ATTR_NOQUOT_VALUE){ + errorHandler.warning('attribute "'+value+'" missed quot(")!!'); + el.add(attrName,value.replace(/&#?\w+;/g,entityReplacer),start); + }else { + if(currentNSMap[''] !== 'http://www.w3.org/1999/xhtml' || !value.match(/^(?:disabled|checked|selected)$/i)){ + errorHandler.warning('attribute "'+value+'" missed value!! "'+value+'" instead!!'); + } + el.add(value,value,start); + } + break; + case S_EQ: + throw new Error('attribute value missed!!'); + } + // console.log(tagName,tagNamePattern,tagNamePattern.test(tagName)) + return p; + /*xml space '\x20' | #x9 | #xD | #xA; */ + case '\u0080': + c = ' '; + default: + if(c<= ' '){//space + switch(s){ + case S_TAG: + el.setTagName(source.slice(start,p));//tagName + s = S_TAG_SPACE; + break; + case S_ATTR: + attrName = source.slice(start,p); + s = S_ATTR_SPACE; + break; + case S_ATTR_NOQUOT_VALUE: + var value = source.slice(start,p).replace(/&#?\w+;/g,entityReplacer); + errorHandler.warning('attribute "'+value+'" missed quot(")!!'); + el.add(attrName,value,start); + case S_ATTR_END: + s = S_TAG_SPACE; + break; + //case S_TAG_SPACE: + //case S_EQ: + //case S_ATTR_SPACE: + // void();break; + //case S_TAG_CLOSE: + //ignore warning + } + }else {//not space + //S_TAG, S_ATTR, S_EQ, S_ATTR_NOQUOT_VALUE + //S_ATTR_SPACE, S_ATTR_END, S_TAG_SPACE, S_TAG_CLOSE + switch(s){ + //case S_TAG:void();break; + //case S_ATTR:void();break; + //case S_ATTR_NOQUOT_VALUE:void();break; + case S_ATTR_SPACE: + var tagName = el.tagName; + if(currentNSMap[''] !== 'http://www.w3.org/1999/xhtml' || !attrName.match(/^(?:disabled|checked|selected)$/i)){ + errorHandler.warning('attribute "'+attrName+'" missed value!! "'+attrName+'" instead2!!'); + } + el.add(attrName,attrName,start); + start = p; + s = S_ATTR; + break; + case S_ATTR_END: + errorHandler.warning('attribute space is required"'+attrName+'"!!'); + case S_TAG_SPACE: + s = S_ATTR; + start = p; + break; + case S_EQ: + s = S_ATTR_NOQUOT_VALUE; + start = p; + break; + case S_TAG_CLOSE: + throw new Error("elements closed character '/' and '>' must be connected to"); + } + } + }//end outer switch + //console.log('p++',p) + p++; + } + } + /** + * @return true if has new namespace define + */ + function appendElement(el,domBuilder,currentNSMap){ + var tagName = el.tagName; + var localNSMap = null; + //var currentNSMap = parseStack[parseStack.length-1].currentNSMap; + var i = el.length; + while(i--){ + var a = el[i]; + var qName = a.qName; + var value = a.value; + var nsp = qName.indexOf(':'); + if(nsp>0){ + var prefix = a.prefix = qName.slice(0,nsp); + var localName = qName.slice(nsp+1); + var nsPrefix = prefix === 'xmlns' && localName; + }else { + localName = qName; + prefix = null; + nsPrefix = qName === 'xmlns' && ''; + } + //can not set prefix,because prefix !== '' + a.localName = localName ; + //prefix == null for no ns prefix attribute + if(nsPrefix !== false){//hack!! + if(localNSMap == null){ + localNSMap = {}; + //console.log(currentNSMap,0) + _copy(currentNSMap,currentNSMap={}); + //console.log(currentNSMap,1) + } + currentNSMap[nsPrefix] = localNSMap[nsPrefix] = value; + a.uri = 'http://www.w3.org/2000/xmlns/'; + domBuilder.startPrefixMapping(nsPrefix, value); + } + } + var i = el.length; + while(i--){ + a = el[i]; + var prefix = a.prefix; + if(prefix){//no prefix attribute has no namespace + if(prefix === 'xml'){ + a.uri = 'http://www.w3.org/XML/1998/namespace'; + }if(prefix !== 'xmlns'){ + a.uri = currentNSMap[prefix || '']; + + //{console.log('###'+a.qName,domBuilder.locator.systemId+'',currentNSMap,a.uri)} + } + } + } + var nsp = tagName.indexOf(':'); + if(nsp>0){ + prefix = el.prefix = tagName.slice(0,nsp); + localName = el.localName = tagName.slice(nsp+1); + }else { + prefix = null;//important!! + localName = el.localName = tagName; + } + //no prefix element has default namespace + var ns = el.uri = currentNSMap[prefix || '']; + domBuilder.startElement(ns,localName,tagName,el); + //endPrefixMapping and startPrefixMapping have not any help for dom builder + //localNSMap = null + if(el.closed){ + domBuilder.endElement(ns,localName,tagName); + if(localNSMap){ + for(prefix in localNSMap){ + domBuilder.endPrefixMapping(prefix); + } + } + }else { + el.currentNSMap = currentNSMap; + el.localNSMap = localNSMap; + //parseStack.push(el); + return true; + } + } + function parseHtmlSpecialContent(source,elStartEnd,tagName,entityReplacer,domBuilder){ + if(/^(?:script|textarea)$/i.test(tagName)){ + var elEndStart = source.indexOf('',elStartEnd); + var text = source.substring(elStartEnd+1,elEndStart); + if(/[&<]/.test(text)){ + if(/^script$/i.test(tagName)){ + //if(!/\]\]>/.test(text)){ + //lexHandler.startCDATA(); + domBuilder.characters(text,0,text.length); + //lexHandler.endCDATA(); + return elEndStart; + //} + }//}else{//text area + text = text.replace(/&#?\w+;/g,entityReplacer); + domBuilder.characters(text,0,text.length); + return elEndStart; + //} + + } + } + return elStartEnd+1; + } + function fixSelfClosed(source,elStartEnd,tagName,closeMap){ + //if(tagName in closeMap){ + var pos = closeMap[tagName]; + if(pos == null){ + //console.log(tagName) + pos = source.lastIndexOf(''); + if(pos',start+4); + //append comment source.substring(4,end)//"); + case DOCUMENT_TYPE_NODE: + var pubid = node.publicId; + var sysid = node.systemId; + buf.push(''); + }else if(sysid && sysid!='.'){ + buf.push(' SYSTEM "',sysid,'">'); + }else { + var sub = node.internalSubset; + if(sub){ + buf.push(" [",sub,"]"); + } + buf.push(">"); + } + return; + case PROCESSING_INSTRUCTION_NODE: + return buf.push( ""); + case ENTITY_REFERENCE_NODE: + return buf.push( '&',node.nodeName,';'); + //case ENTITY_NODE: + //case NOTATION_NODE: + default: + buf.push('??',node.nodeName); + } + } + function importNode(doc,node,deep){ + var node2; + switch (node.nodeType) { + case ELEMENT_NODE: + node2 = node.cloneNode(false); + node2.ownerDocument = doc; + //var attrs = node2.attributes; + //var len = attrs.length; + //for(var i=0;i','amp':'&','quot':'"','apos':"'"}; + if(locator){ + domBuilder.setDocumentLocator(locator); + } + + sax.errorHandler = buildErrorHandler(errorHandler,domBuilder,locator); + sax.domBuilder = options.domBuilder || domBuilder; + if(/\/x?html?$/.test(mimeType)){ + entityMap.nbsp = '\xa0'; + entityMap.copy = '\xa9'; + defaultNSMap['']= 'http://www.w3.org/1999/xhtml'; + } + defaultNSMap.xml = defaultNSMap.xml || 'http://www.w3.org/XML/1998/namespace'; + if(source){ + sax.parse(source,defaultNSMap,entityMap); + }else { + sax.errorHandler.error("invalid doc source"); + } + return domBuilder.doc; + }; + function buildErrorHandler(errorImpl,domBuilder,locator){ + if(!errorImpl){ + if(domBuilder instanceof DOMHandler){ + return domBuilder; + } + errorImpl = domBuilder ; + } + var errorHandler = {}; + var isCallback = errorImpl instanceof Function; + locator = locator||{}; + function build(key){ + var fn = errorImpl[key]; + if(!fn && isCallback){ + fn = errorImpl.length == 2?function(msg){errorImpl(key,msg);}:errorImpl; + } + errorHandler[key] = fn && function(msg){ + fn('[xmldom '+key+']\t'+msg+_locator(locator)); + }||function(){}; + } + build('warning'); + build('error'); + build('fatalError'); + return errorHandler; + } + + //console.log('#\n\n\n\n\n\n\n####') + /** + * +ContentHandler+ErrorHandler + * +LexicalHandler+EntityResolver2 + * -DeclHandler-DTDHandler + * + * DefaultHandler:EntityResolver, DTDHandler, ContentHandler, ErrorHandler + * DefaultHandler2:DefaultHandler,LexicalHandler, DeclHandler, EntityResolver2 + * @link http://www.saxproject.org/apidoc/org/xml/sax/helpers/DefaultHandler.html + */ + function DOMHandler() { + this.cdata = false; + } + function position(locator,node){ + node.lineNumber = locator.lineNumber; + node.columnNumber = locator.columnNumber; + } + /** + * @see org.xml.sax.ContentHandler#startDocument + * @link http://www.saxproject.org/apidoc/org/xml/sax/ContentHandler.html + */ + DOMHandler.prototype = { + startDocument : function() { + this.doc = new DOMImplementation().createDocument(null, null, null); + if (this.locator) { + this.doc.documentURI = this.locator.systemId; + } + }, + startElement:function(namespaceURI, localName, qName, attrs) { + var doc = this.doc; + var el = doc.createElementNS(namespaceURI, qName||localName); + var len = attrs.length; + appendElement(this, el); + this.currentElement = el; + + this.locator && position(this.locator,el); + for (var i = 0 ; i < len; i++) { + var namespaceURI = attrs.getURI(i); + var value = attrs.getValue(i); + var qName = attrs.getQName(i); + var attr = doc.createAttributeNS(namespaceURI, qName); + this.locator &&position(attrs.getLocator(i),attr); + attr.value = attr.nodeValue = value; + el.setAttributeNode(attr); + } + }, + endElement:function(namespaceURI, localName, qName) { + var current = this.currentElement; + var tagName = current.tagName; + this.currentElement = current.parentNode; + }, + startPrefixMapping:function(prefix, uri) { + }, + endPrefixMapping:function(prefix) { + }, + processingInstruction:function(target, data) { + var ins = this.doc.createProcessingInstruction(target, data); + this.locator && position(this.locator,ins); + appendElement(this, ins); + }, + ignorableWhitespace:function(ch, start, length) { + }, + characters:function(chars, start, length) { + chars = _toString.apply(this,arguments); + //console.log(chars) + if(chars){ + if (this.cdata) { + var charNode = this.doc.createCDATASection(chars); + } else { + var charNode = this.doc.createTextNode(chars); + } + if(this.currentElement){ + this.currentElement.appendChild(charNode); + }else if(/^\s*$/.test(chars)){ + this.doc.appendChild(charNode); + //process xml + } + this.locator && position(this.locator,charNode); + } + }, + skippedEntity:function(name) { + }, + endDocument:function() { + this.doc.normalize(); + }, + setDocumentLocator:function (locator) { + if(this.locator = locator){// && !('lineNumber' in locator)){ + locator.lineNumber = 0; + } + }, + //LexicalHandler + comment:function(chars, start, length) { + chars = _toString.apply(this,arguments); + var comm = this.doc.createComment(chars); + this.locator && position(this.locator,comm); + appendElement(this, comm); + }, + + startCDATA:function() { + //used in characters() methods + this.cdata = true; + }, + endCDATA:function() { + this.cdata = false; + }, + + startDTD:function(name, publicId, systemId) { + var impl = this.doc.implementation; + if (impl && impl.createDocumentType) { + var dt = impl.createDocumentType(name, publicId, systemId); + this.locator && position(this.locator,dt); + appendElement(this, dt); + } + }, + /** + * @see org.xml.sax.ErrorHandler + * @link http://www.saxproject.org/apidoc/org/xml/sax/ErrorHandler.html + */ + warning:function(error) { + console.warn('[xmldom warning]\t'+error,_locator(this.locator)); + }, + error:function(error) { + console.error('[xmldom error]\t'+error,_locator(this.locator)); + }, + fatalError:function(error) { + console.error('[xmldom fatalError]\t'+error,_locator(this.locator)); + throw error; + } + }; + function _locator(l){ + if(l){ + return '\n@'+(l.systemId ||'')+'#[line:'+l.lineNumber+',col:'+l.columnNumber+']' + } + } + function _toString(chars,start,length){ + if(typeof chars == 'string'){ + return chars.substr(start,length) + }else {//java sax connect width xmldom on rhino(what about: "? && !(chars instanceof String)") + if(chars.length >= start+length || start){ + return new java.lang.String(chars,start,length)+''; + } + return chars; + } + } + + /* + * @link http://www.saxproject.org/apidoc/org/xml/sax/ext/LexicalHandler.html + * used method of org.xml.sax.ext.LexicalHandler: + * #comment(chars, start, length) + * #startCDATA() + * #endCDATA() + * #startDTD(name, publicId, systemId) + * + * + * IGNORED method of org.xml.sax.ext.LexicalHandler: + * #endDTD() + * #startEntity(name) + * #endEntity(name) + * + * + * @link http://www.saxproject.org/apidoc/org/xml/sax/ext/DeclHandler.html + * IGNORED method of org.xml.sax.ext.DeclHandler + * #attributeDecl(eName, aName, type, mode, value) + * #elementDecl(name, model) + * #externalEntityDecl(name, publicId, systemId) + * #internalEntityDecl(name, value) + * @link http://www.saxproject.org/apidoc/org/xml/sax/ext/EntityResolver2.html + * IGNORED method of org.xml.sax.EntityResolver2 + * #resolveEntity(String name,String publicId,String baseURI,String systemId) + * #resolveEntity(publicId, systemId) + * #getExternalSubset(name, baseURI) + * @link http://www.saxproject.org/apidoc/org/xml/sax/DTDHandler.html + * IGNORED method of org.xml.sax.DTDHandler + * #notationDecl(name, publicId, systemId) {}; + * #unparsedEntityDecl(name, publicId, systemId, notationName) {}; + */ + "endDTD,startEntity,endEntity,attributeDecl,elementDecl,externalEntityDecl,internalEntityDecl,resolveEntity,getExternalSubset,notationDecl,unparsedEntityDecl".replace(/\w+/g,function(key){ + DOMHandler.prototype[key] = function(){return null}; + }); + + /* Private static helpers treated below as private instance methods, so don't need to add these to the public API; we might use a Relator to also get rid of non-standard public properties */ + function appendElement (hander,node) { + if (!hander.currentElement) { + hander.doc.appendChild(node); + } else { + hander.currentElement.appendChild(node); + } + }//appendChild and setAttributeNS are preformance key + + //if(typeof require == 'function'){ + var XMLReader = sax.XMLReader; + var DOMImplementation = exports.DOMImplementation = dom.DOMImplementation; + exports.XMLSerializer = dom.XMLSerializer ; + exports.DOMParser = DOMParser; + //} + }); + var domParser_1 = domParser.DOMImplementation; + var domParser_2 = domParser.XMLSerializer; + var domParser_3 = domParser.DOMParser; + + /*! @name mpd-parser @version 0.10.0 @license Apache-2.0 */ + + var isObject = function isObject(obj) { + return !!obj && typeof obj === 'object'; + }; + + var merge = function merge() { + for (var _len = arguments.length, objects = new Array(_len), _key = 0; _key < _len; _key++) { + objects[_key] = arguments[_key]; + } + + return objects.reduce(function (result, source) { + Object.keys(source).forEach(function (key) { + if (Array.isArray(result[key]) && Array.isArray(source[key])) { + result[key] = result[key].concat(source[key]); + } else if (isObject(result[key]) && isObject(source[key])) { + result[key] = merge(result[key], source[key]); + } else { + result[key] = source[key]; + } + }); + return result; + }, {}); + }; + var values = function values(o) { + return Object.keys(o).map(function (k) { + return o[k]; + }); + }; + + var range = function range(start, end) { + var result = []; + + for (var i = start; i < end; i++) { + result.push(i); + } + + return result; + }; + var flatten = function flatten(lists) { + return lists.reduce(function (x, y) { + return x.concat(y); + }, []); + }; + var from = function from(list) { + if (!list.length) { + return []; + } + + var result = []; + + for (var i = 0; i < list.length; i++) { + result.push(list[i]); + } + + return result; + }; + var findIndexes = function findIndexes(l, key) { + return l.reduce(function (a, e, i) { + if (e[key]) { + a.push(i); + } + + return a; + }, []); + }; + + var errors = { + INVALID_NUMBER_OF_PERIOD: 'INVALID_NUMBER_OF_PERIOD', + DASH_EMPTY_MANIFEST: 'DASH_EMPTY_MANIFEST', + DASH_INVALID_XML: 'DASH_INVALID_XML', + NO_BASE_URL: 'NO_BASE_URL', + MISSING_SEGMENT_INFORMATION: 'MISSING_SEGMENT_INFORMATION', + SEGMENT_TIME_UNSPECIFIED: 'SEGMENT_TIME_UNSPECIFIED', + UNSUPPORTED_UTC_TIMING_SCHEME: 'UNSUPPORTED_UTC_TIMING_SCHEME' + }; + + /** + * @typedef {Object} SingleUri + * @property {string} uri - relative location of segment + * @property {string} resolvedUri - resolved location of segment + * @property {Object} byterange - Object containing information on how to make byte range + * requests following byte-range-spec per RFC2616. + * @property {String} byterange.length - length of range request + * @property {String} byterange.offset - byte offset of range request + * + * @see https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.35.1 + */ + + /** + * Converts a URLType node (5.3.9.2.3 Table 13) to a segment object + * that conforms to how m3u8-parser is structured + * + * @see https://github.com/videojs/m3u8-parser + * + * @param {string} baseUrl - baseUrl provided by nodes + * @param {string} source - source url for segment + * @param {string} range - optional range used for range calls, + * follows RFC 2616, Clause 14.35.1 + * @return {SingleUri} full segment information transformed into a format similar + * to m3u8-parser + */ + + var urlTypeToSegment = function urlTypeToSegment(_ref) { + var _ref$baseUrl = _ref.baseUrl, + baseUrl = _ref$baseUrl === void 0 ? '' : _ref$baseUrl, + _ref$source = _ref.source, + source = _ref$source === void 0 ? '' : _ref$source, + _ref$range = _ref.range, + range = _ref$range === void 0 ? '' : _ref$range, + _ref$indexRange = _ref.indexRange, + indexRange = _ref$indexRange === void 0 ? '' : _ref$indexRange; + var segment = { + uri: source, + resolvedUri: resolveUrl_1(baseUrl || '', source) + }; + + if (range || indexRange) { + var rangeStr = range ? range : indexRange; + var ranges = rangeStr.split('-'); + var startRange = parseInt(ranges[0], 10); + var endRange = parseInt(ranges[1], 10); // byterange should be inclusive according to + // RFC 2616, Clause 14.35.1 + + segment.byterange = { + length: endRange - startRange + 1, + offset: startRange + }; + } + + return segment; + }; + var byteRangeToString = function byteRangeToString(byterange) { + // `endRange` is one less than `offset + length` because the HTTP range + // header uses inclusive ranges + var endRange = byterange.offset + byterange.length - 1; + return byterange.offset + "-" + endRange; + }; + + /** + * Functions for calculating the range of available segments in static and dynamic + * manifests. + */ + + var segmentRange = { + /** + * Returns the entire range of available segments for a static MPD + * + * @param {Object} attributes + * Inheritied MPD attributes + * @return {{ start: number, end: number }} + * The start and end numbers for available segments + */ + static: function _static(attributes) { + var duration = attributes.duration, + _attributes$timescale = attributes.timescale, + timescale = _attributes$timescale === void 0 ? 1 : _attributes$timescale, + sourceDuration = attributes.sourceDuration; + return { + start: 0, + end: Math.ceil(sourceDuration / (duration / timescale)) + }; + }, + + /** + * Returns the current live window range of available segments for a dynamic MPD + * + * @param {Object} attributes + * Inheritied MPD attributes + * @return {{ start: number, end: number }} + * The start and end numbers for available segments + */ + dynamic: function dynamic(attributes) { + var NOW = attributes.NOW, + clientOffset = attributes.clientOffset, + availabilityStartTime = attributes.availabilityStartTime, + _attributes$timescale2 = attributes.timescale, + timescale = _attributes$timescale2 === void 0 ? 1 : _attributes$timescale2, + duration = attributes.duration, + _attributes$start = attributes.start, + start = _attributes$start === void 0 ? 0 : _attributes$start, + _attributes$minimumUp = attributes.minimumUpdatePeriod, + minimumUpdatePeriod = _attributes$minimumUp === void 0 ? 0 : _attributes$minimumUp, + _attributes$timeShift = attributes.timeShiftBufferDepth, + timeShiftBufferDepth = _attributes$timeShift === void 0 ? Infinity : _attributes$timeShift; + var now = (NOW + clientOffset) / 1000; + var periodStartWC = availabilityStartTime + start; + var periodEndWC = now + minimumUpdatePeriod; + var periodDuration = periodEndWC - periodStartWC; + var segmentCount = Math.ceil(periodDuration * timescale / duration); + var availableStart = Math.floor((now - periodStartWC - timeShiftBufferDepth) * timescale / duration); + var availableEnd = Math.floor((now - periodStartWC) * timescale / duration); + return { + start: Math.max(0, availableStart), + end: Math.min(segmentCount, availableEnd) + }; + } + }; + /** + * Maps a range of numbers to objects with information needed to build the corresponding + * segment list + * + * @name toSegmentsCallback + * @function + * @param {number} number + * Number of the segment + * @param {number} index + * Index of the number in the range list + * @return {{ number: Number, duration: Number, timeline: Number, time: Number }} + * Object with segment timing and duration info + */ + + /** + * Returns a callback for Array.prototype.map for mapping a range of numbers to + * information needed to build the segment list. + * + * @param {Object} attributes + * Inherited MPD attributes + * @return {toSegmentsCallback} + * Callback map function + */ + + var toSegments = function toSegments(attributes) { + return function (number, index) { + var duration = attributes.duration, + _attributes$timescale3 = attributes.timescale, + timescale = _attributes$timescale3 === void 0 ? 1 : _attributes$timescale3, + periodIndex = attributes.periodIndex, + _attributes$startNumb = attributes.startNumber, + startNumber = _attributes$startNumb === void 0 ? 1 : _attributes$startNumb; + return { + number: startNumber + number, + duration: duration / timescale, + timeline: periodIndex, + time: index * duration + }; + }; + }; + /** + * Returns a list of objects containing segment timing and duration info used for + * building the list of segments. This uses the @duration attribute specified + * in the MPD manifest to derive the range of segments. + * + * @param {Object} attributes + * Inherited MPD attributes + * @return {{number: number, duration: number, time: number, timeline: number}[]} + * List of Objects with segment timing and duration info + */ + + var parseByDuration = function parseByDuration(attributes) { + var _attributes$type = attributes.type, + type = _attributes$type === void 0 ? 'static' : _attributes$type, + duration = attributes.duration, + _attributes$timescale4 = attributes.timescale, + timescale = _attributes$timescale4 === void 0 ? 1 : _attributes$timescale4, + sourceDuration = attributes.sourceDuration; + + var _segmentRange$type = segmentRange[type](attributes), + start = _segmentRange$type.start, + end = _segmentRange$type.end; + + var segments = range(start, end).map(toSegments(attributes)); + + if (type === 'static') { + var index = segments.length - 1; // final segment may be less than full segment duration + + segments[index].duration = sourceDuration - duration / timescale * index; + } + + return segments; + }; + + /** + * Translates SegmentBase into a set of segments. + * (DASH SPEC Section 5.3.9.3.2) contains a set of nodes. Each + * node should be translated into segment. + * + * @param {Object} attributes + * Object containing all inherited attributes from parent elements with attribute + * names as keys + * @return {Object.} list of segments + */ + + var segmentsFromBase = function segmentsFromBase(attributes) { + var baseUrl = attributes.baseUrl, + _attributes$initializ = attributes.initialization, + initialization = _attributes$initializ === void 0 ? {} : _attributes$initializ, + sourceDuration = attributes.sourceDuration, + _attributes$timescale = attributes.timescale, + timescale = _attributes$timescale === void 0 ? 1 : _attributes$timescale, + _attributes$indexRang = attributes.indexRange, + indexRange = _attributes$indexRang === void 0 ? '' : _attributes$indexRang, + duration = attributes.duration; // base url is required for SegmentBase to work, per spec (Section 5.3.9.2.1) + + if (!baseUrl) { + throw new Error(errors.NO_BASE_URL); + } + + var initSegment = urlTypeToSegment({ + baseUrl: baseUrl, + source: initialization.sourceURL, + range: initialization.range + }); + var segment = urlTypeToSegment({ + baseUrl: baseUrl, + source: baseUrl, + indexRange: indexRange + }); + segment.map = initSegment; // If there is a duration, use it, otherwise use the given duration of the source + // (since SegmentBase is only for one total segment) + + if (duration) { + var segmentTimeInfo = parseByDuration(attributes); + + if (segmentTimeInfo.length) { + segment.duration = segmentTimeInfo[0].duration; + segment.timeline = segmentTimeInfo[0].timeline; + } + } else if (sourceDuration) { + segment.duration = sourceDuration / timescale; + segment.timeline = 0; + } // This is used for mediaSequence + + + segment.number = 0; + return [segment]; + }; + /** + * Given a playlist, a sidx box, and a baseUrl, update the segment list of the playlist + * according to the sidx information given. + * + * playlist.sidx has metadadata about the sidx where-as the sidx param + * is the parsed sidx box itself. + * + * @param {Object} playlist the playlist to update the sidx information for + * @param {Object} sidx the parsed sidx box + * @return {Object} the playlist object with the updated sidx information + */ + + var addSegmentsToPlaylist = function addSegmentsToPlaylist(playlist, sidx, baseUrl) { + // Retain init segment information + var initSegment = playlist.sidx.map ? playlist.sidx.map : null; // Retain source duration from initial master manifest parsing + + var sourceDuration = playlist.sidx.duration; // Retain source timeline + + var timeline = playlist.timeline || 0; + var sidxByteRange = playlist.sidx.byterange; + var sidxEnd = sidxByteRange.offset + sidxByteRange.length; // Retain timescale of the parsed sidx + + var timescale = sidx.timescale; // referenceType 1 refers to other sidx boxes + + var mediaReferences = sidx.references.filter(function (r) { + return r.referenceType !== 1; + }); + var segments = []; // firstOffset is the offset from the end of the sidx box + + var startIndex = sidxEnd + sidx.firstOffset; + + for (var i = 0; i < mediaReferences.length; i++) { + var reference = sidx.references[i]; // size of the referenced (sub)segment + + var size = reference.referencedSize; // duration of the referenced (sub)segment, in the timescale + // this will be converted to seconds when generating segments + + var duration = reference.subsegmentDuration; // should be an inclusive range + + var endIndex = startIndex + size - 1; + var indexRange = startIndex + "-" + endIndex; + var attributes = { + baseUrl: baseUrl, + timescale: timescale, + timeline: timeline, + // this is used in parseByDuration + periodIndex: timeline, + duration: duration, + sourceDuration: sourceDuration, + indexRange: indexRange + }; + var segment = segmentsFromBase(attributes)[0]; + + if (initSegment) { + segment.map = initSegment; + } + + segments.push(segment); + startIndex += size; + } + + playlist.segments = segments; + return playlist; + }; + + var mergeDiscontiguousPlaylists = function mergeDiscontiguousPlaylists(playlists) { + var mergedPlaylists = values(playlists.reduce(function (acc, playlist) { + // assuming playlist IDs are the same across periods + // TODO: handle multiperiod where representation sets are not the same + // across periods + var name = playlist.attributes.id + (playlist.attributes.lang || ''); // Periods after first + + if (acc[name]) { + var _acc$name$segments; + + // first segment of subsequent periods signal a discontinuity + if (playlist.segments[0]) { + playlist.segments[0].discontinuity = true; + } + + (_acc$name$segments = acc[name].segments).push.apply(_acc$name$segments, playlist.segments); // bubble up contentProtection, this assumes all DRM content + // has the same contentProtection + + + if (playlist.attributes.contentProtection) { + acc[name].attributes.contentProtection = playlist.attributes.contentProtection; + } + } else { + // first Period + acc[name] = playlist; + } + + return acc; + }, {})); + return mergedPlaylists.map(function (playlist) { + playlist.discontinuityStarts = findIndexes(playlist.segments, 'discontinuity'); + return playlist; + }); + }; + + var addSegmentInfoFromSidx = function addSegmentInfoFromSidx(playlists, sidxMapping) { + if (sidxMapping === void 0) { + sidxMapping = {}; + } + + if (!Object.keys(sidxMapping).length) { + return playlists; + } + + for (var i in playlists) { + var playlist = playlists[i]; + + if (!playlist.sidx) { + continue; + } + + var sidxKey = playlist.sidx.uri + '-' + byteRangeToString(playlist.sidx.byterange); + var sidxMatch = sidxMapping[sidxKey] && sidxMapping[sidxKey].sidx; + + if (playlist.sidx && sidxMatch) { + addSegmentsToPlaylist(playlist, sidxMatch, playlist.sidx.resolvedUri); + } + } + + return playlists; + }; + + var formatAudioPlaylist = function formatAudioPlaylist(_ref) { + var _attributes; + + var attributes = _ref.attributes, + segments = _ref.segments, + sidx = _ref.sidx; + var playlist = { + attributes: (_attributes = { + NAME: attributes.id, + BANDWIDTH: attributes.bandwidth, + CODECS: attributes.codecs + }, _attributes['PROGRAM-ID'] = 1, _attributes), + uri: '', + endList: (attributes.type || 'static') === 'static', + timeline: attributes.periodIndex, + resolvedUri: '', + targetDuration: attributes.duration, + segments: segments, + mediaSequence: segments.length ? segments[0].number : 1 + }; + + if (attributes.contentProtection) { + playlist.contentProtection = attributes.contentProtection; + } + + if (sidx) { + playlist.sidx = sidx; + } + + return playlist; + }; + var formatVttPlaylist = function formatVttPlaylist(_ref2) { + var _attributes2; + + var attributes = _ref2.attributes, + segments = _ref2.segments; + + if (typeof segments === 'undefined') { + // vtt tracks may use single file in BaseURL + segments = [{ + uri: attributes.baseUrl, + timeline: attributes.periodIndex, + resolvedUri: attributes.baseUrl || '', + duration: attributes.sourceDuration, + number: 0 + }]; // targetDuration should be the same duration as the only segment + + attributes.duration = attributes.sourceDuration; + } + + return { + attributes: (_attributes2 = { + NAME: attributes.id, + BANDWIDTH: attributes.bandwidth + }, _attributes2['PROGRAM-ID'] = 1, _attributes2), + uri: '', + endList: (attributes.type || 'static') === 'static', + timeline: attributes.periodIndex, + resolvedUri: attributes.baseUrl || '', + targetDuration: attributes.duration, + segments: segments, + mediaSequence: segments.length ? segments[0].number : 1 + }; + }; + var organizeAudioPlaylists = function organizeAudioPlaylists(playlists, sidxMapping) { + if (sidxMapping === void 0) { + sidxMapping = {}; + } + + var mainPlaylist; + var formattedPlaylists = playlists.reduce(function (a, playlist) { + var role = playlist.attributes.role && playlist.attributes.role.value || ''; + var language = playlist.attributes.lang || ''; + var label = 'main'; + + if (language) { + var roleLabel = role ? " (" + role + ")" : ''; + label = "" + playlist.attributes.lang + roleLabel; + } // skip if we already have the highest quality audio for a language + + + if (a[label] && a[label].playlists[0].attributes.BANDWIDTH > playlist.attributes.bandwidth) { + return a; + } + + a[label] = { + language: language, + autoselect: true, + default: role === 'main', + playlists: addSegmentInfoFromSidx([formatAudioPlaylist(playlist)], sidxMapping), + uri: '' + }; + + if (typeof mainPlaylist === 'undefined' && role === 'main') { + mainPlaylist = playlist; + mainPlaylist.default = true; + } + + return a; + }, {}); // if no playlists have role "main", mark the first as main + + if (!mainPlaylist) { + var firstLabel = Object.keys(formattedPlaylists)[0]; + formattedPlaylists[firstLabel].default = true; + } + + return formattedPlaylists; + }; + var organizeVttPlaylists = function organizeVttPlaylists(playlists, sidxMapping) { + if (sidxMapping === void 0) { + sidxMapping = {}; + } + + return playlists.reduce(function (a, playlist) { + var label = playlist.attributes.lang || 'text'; // skip if we already have subtitles + + if (a[label]) { + return a; + } + + a[label] = { + language: label, + default: false, + autoselect: false, + playlists: addSegmentInfoFromSidx([formatVttPlaylist(playlist)], sidxMapping), + uri: '' + }; + return a; + }, {}); + }; + var formatVideoPlaylist = function formatVideoPlaylist(_ref3) { + var _attributes3; + + var attributes = _ref3.attributes, + segments = _ref3.segments, + sidx = _ref3.sidx; + var playlist = { + attributes: (_attributes3 = { + NAME: attributes.id, + AUDIO: 'audio', + SUBTITLES: 'subs', + RESOLUTION: { + width: attributes.width, + height: attributes.height + }, + CODECS: attributes.codecs, + BANDWIDTH: attributes.bandwidth + }, _attributes3['PROGRAM-ID'] = 1, _attributes3), + uri: '', + endList: (attributes.type || 'static') === 'static', + timeline: attributes.periodIndex, + resolvedUri: '', + targetDuration: attributes.duration, + segments: segments, + mediaSequence: segments.length ? segments[0].number : 1 + }; + + if (attributes.contentProtection) { + playlist.contentProtection = attributes.contentProtection; + } + + if (sidx) { + playlist.sidx = sidx; + } + + return playlist; + }; + var toM3u8 = function toM3u8(dashPlaylists, sidxMapping) { + var _mediaGroups; + + if (sidxMapping === void 0) { + sidxMapping = {}; + } + + if (!dashPlaylists.length) { + return {}; + } // grab all master attributes + + + var _dashPlaylists$0$attr = dashPlaylists[0].attributes, + duration = _dashPlaylists$0$attr.sourceDuration, + _dashPlaylists$0$attr2 = _dashPlaylists$0$attr.type, + type = _dashPlaylists$0$attr2 === void 0 ? 'static' : _dashPlaylists$0$attr2, + suggestedPresentationDelay = _dashPlaylists$0$attr.suggestedPresentationDelay, + _dashPlaylists$0$attr3 = _dashPlaylists$0$attr.minimumUpdatePeriod, + minimumUpdatePeriod = _dashPlaylists$0$attr3 === void 0 ? 0 : _dashPlaylists$0$attr3; + + var videoOnly = function videoOnly(_ref4) { + var attributes = _ref4.attributes; + return attributes.mimeType === 'video/mp4' || attributes.contentType === 'video'; + }; + + var audioOnly = function audioOnly(_ref5) { + var attributes = _ref5.attributes; + return attributes.mimeType === 'audio/mp4' || attributes.contentType === 'audio'; + }; + + var vttOnly = function vttOnly(_ref6) { + var attributes = _ref6.attributes; + return attributes.mimeType === 'text/vtt' || attributes.contentType === 'text'; + }; + + var videoPlaylists = mergeDiscontiguousPlaylists(dashPlaylists.filter(videoOnly)).map(formatVideoPlaylist); + var audioPlaylists = mergeDiscontiguousPlaylists(dashPlaylists.filter(audioOnly)); + var vttPlaylists = dashPlaylists.filter(vttOnly); + var master = { + allowCache: true, + discontinuityStarts: [], + segments: [], + endList: true, + mediaGroups: (_mediaGroups = { + AUDIO: {}, + VIDEO: {} + }, _mediaGroups['CLOSED-CAPTIONS'] = {}, _mediaGroups.SUBTITLES = {}, _mediaGroups), + uri: '', + duration: duration, + playlists: addSegmentInfoFromSidx(videoPlaylists, sidxMapping), + minimumUpdatePeriod: minimumUpdatePeriod * 1000 + }; + + if (type === 'dynamic') { + master.suggestedPresentationDelay = suggestedPresentationDelay; + } + + if (audioPlaylists.length) { + master.mediaGroups.AUDIO.audio = organizeAudioPlaylists(audioPlaylists, sidxMapping); + } + + if (vttPlaylists.length) { + master.mediaGroups.SUBTITLES.subs = organizeVttPlaylists(vttPlaylists, sidxMapping); + } + + return master; + }; + + /** + * Calculates the R (repetition) value for a live stream (for the final segment + * in a manifest where the r value is negative 1) + * + * @param {Object} attributes + * Object containing all inherited attributes from parent elements with attribute + * names as keys + * @param {number} time + * current time (typically the total time up until the final segment) + * @param {number} duration + * duration property for the given + * + * @return {number} + * R value to reach the end of the given period + */ + var getLiveRValue = function getLiveRValue(attributes, time, duration) { + var NOW = attributes.NOW, + clientOffset = attributes.clientOffset, + availabilityStartTime = attributes.availabilityStartTime, + _attributes$timescale = attributes.timescale, + timescale = _attributes$timescale === void 0 ? 1 : _attributes$timescale, + _attributes$start = attributes.start, + start = _attributes$start === void 0 ? 0 : _attributes$start, + _attributes$minimumUp = attributes.minimumUpdatePeriod, + minimumUpdatePeriod = _attributes$minimumUp === void 0 ? 0 : _attributes$minimumUp; + var now = (NOW + clientOffset) / 1000; + var periodStartWC = availabilityStartTime + start; + var periodEndWC = now + minimumUpdatePeriod; + var periodDuration = periodEndWC - periodStartWC; + return Math.ceil((periodDuration * timescale - time) / duration); + }; + /** + * Uses information provided by SegmentTemplate.SegmentTimeline to determine segment + * timing and duration + * + * @param {Object} attributes + * Object containing all inherited attributes from parent elements with attribute + * names as keys + * @param {Object[]} segmentTimeline + * List of objects representing the attributes of each S element contained within + * + * @return {{number: number, duration: number, time: number, timeline: number}[]} + * List of Objects with segment timing and duration info + */ + + + var parseByTimeline = function parseByTimeline(attributes, segmentTimeline) { + var _attributes$type = attributes.type, + type = _attributes$type === void 0 ? 'static' : _attributes$type, + _attributes$minimumUp2 = attributes.minimumUpdatePeriod, + minimumUpdatePeriod = _attributes$minimumUp2 === void 0 ? 0 : _attributes$minimumUp2, + _attributes$media = attributes.media, + media = _attributes$media === void 0 ? '' : _attributes$media, + sourceDuration = attributes.sourceDuration, + _attributes$timescale2 = attributes.timescale, + timescale = _attributes$timescale2 === void 0 ? 1 : _attributes$timescale2, + _attributes$startNumb = attributes.startNumber, + startNumber = _attributes$startNumb === void 0 ? 1 : _attributes$startNumb, + timeline = attributes.periodIndex; + var segments = []; + var time = -1; + + for (var sIndex = 0; sIndex < segmentTimeline.length; sIndex++) { + var S = segmentTimeline[sIndex]; + var duration = S.d; + var repeat = S.r || 0; + var segmentTime = S.t || 0; + + if (time < 0) { + // first segment + time = segmentTime; + } + + if (segmentTime && segmentTime > time) { + // discontinuity + // TODO: How to handle this type of discontinuity + // timeline++ here would treat it like HLS discontuity and content would + // get appended without gap + // E.G. + // + // + // + // + // would have $Time$ values of [0, 1, 2, 5] + // should this be appened at time positions [0, 1, 2, 3],(#EXT-X-DISCONTINUITY) + // or [0, 1, 2, gap, gap, 5]? (#EXT-X-GAP) + // does the value of sourceDuration consider this when calculating arbitrary + // negative @r repeat value? + // E.G. Same elements as above with this added at the end + // + // with a sourceDuration of 10 + // Would the 2 gaps be included in the time duration calculations resulting in + // 8 segments with $Time$ values of [0, 1, 2, 5, 6, 7, 8, 9] or 10 segments + // with $Time$ values of [0, 1, 2, 5, 6, 7, 8, 9, 10, 11] ? + time = segmentTime; + } + + var count = void 0; + + if (repeat < 0) { + var nextS = sIndex + 1; + + if (nextS === segmentTimeline.length) { + // last segment + if (type === 'dynamic' && minimumUpdatePeriod > 0 && media.indexOf('$Number$') > 0) { + count = getLiveRValue(attributes, time, duration); + } else { + // TODO: This may be incorrect depending on conclusion of TODO above + count = (sourceDuration * timescale - time) / duration; + } + } else { + count = (segmentTimeline[nextS].t - time) / duration; + } + } else { + count = repeat + 1; + } + + var end = startNumber + segments.length + count; + var number = startNumber + segments.length; + + while (number < end) { + segments.push({ + number: number, + duration: duration / timescale, + time: time, + timeline: timeline + }); + time += duration; + number++; + } + } + + return segments; + }; + + var identifierPattern = /\$([A-z]*)(?:(%0)([0-9]+)d)?\$/g; + /** + * Replaces template identifiers with corresponding values. To be used as the callback + * for String.prototype.replace + * + * @name replaceCallback + * @function + * @param {string} match + * Entire match of identifier + * @param {string} identifier + * Name of matched identifier + * @param {string} format + * Format tag string. Its presence indicates that padding is expected + * @param {string} width + * Desired length of the replaced value. Values less than this width shall be left + * zero padded + * @return {string} + * Replacement for the matched identifier + */ + + /** + * Returns a function to be used as a callback for String.prototype.replace to replace + * template identifiers + * + * @param {Obect} values + * Object containing values that shall be used to replace known identifiers + * @param {number} values.RepresentationID + * Value of the Representation@id attribute + * @param {number} values.Number + * Number of the corresponding segment + * @param {number} values.Bandwidth + * Value of the Representation@bandwidth attribute. + * @param {number} values.Time + * Timestamp value of the corresponding segment + * @return {replaceCallback} + * Callback to be used with String.prototype.replace to replace identifiers + */ + + var identifierReplacement = function identifierReplacement(values) { + return function (match, identifier, format, width) { + if (match === '$$') { + // escape sequence + return '$'; + } + + if (typeof values[identifier] === 'undefined') { + return match; + } + + var value = '' + values[identifier]; + + if (identifier === 'RepresentationID') { + // Format tag shall not be present with RepresentationID + return value; + } + + if (!format) { + width = 1; + } else { + width = parseInt(width, 10); + } + + if (value.length >= width) { + return value; + } + + return "" + new Array(width - value.length + 1).join('0') + value; + }; + }; + /** + * Constructs a segment url from a template string + * + * @param {string} url + * Template string to construct url from + * @param {Obect} values + * Object containing values that shall be used to replace known identifiers + * @param {number} values.RepresentationID + * Value of the Representation@id attribute + * @param {number} values.Number + * Number of the corresponding segment + * @param {number} values.Bandwidth + * Value of the Representation@bandwidth attribute. + * @param {number} values.Time + * Timestamp value of the corresponding segment + * @return {string} + * Segment url with identifiers replaced + */ + + var constructTemplateUrl = function constructTemplateUrl(url, values) { + return url.replace(identifierPattern, identifierReplacement(values)); + }; + /** + * Generates a list of objects containing timing and duration information about each + * segment needed to generate segment uris and the complete segment object + * + * @param {Object} attributes + * Object containing all inherited attributes from parent elements with attribute + * names as keys + * @param {Object[]|undefined} segmentTimeline + * List of objects representing the attributes of each S element contained within + * the SegmentTimeline element + * @return {{number: number, duration: number, time: number, timeline: number}[]} + * List of Objects with segment timing and duration info + */ + + var parseTemplateInfo = function parseTemplateInfo(attributes, segmentTimeline) { + if (!attributes.duration && !segmentTimeline) { + // if neither @duration or SegmentTimeline are present, then there shall be exactly + // one media segment + return [{ + number: attributes.startNumber || 1, + duration: attributes.sourceDuration, + time: 0, + timeline: attributes.periodIndex + }]; + } + + if (attributes.duration) { + return parseByDuration(attributes); + } + + return parseByTimeline(attributes, segmentTimeline); + }; + /** + * Generates a list of segments using information provided by the SegmentTemplate element + * + * @param {Object} attributes + * Object containing all inherited attributes from parent elements with attribute + * names as keys + * @param {Object[]|undefined} segmentTimeline + * List of objects representing the attributes of each S element contained within + * the SegmentTimeline element + * @return {Object[]} + * List of segment objects + */ + + var segmentsFromTemplate = function segmentsFromTemplate(attributes, segmentTimeline) { + var templateValues = { + RepresentationID: attributes.id, + Bandwidth: attributes.bandwidth || 0 + }; + var _attributes$initializ = attributes.initialization, + initialization = _attributes$initializ === void 0 ? { + sourceURL: '', + range: '' + } : _attributes$initializ; + var mapSegment = urlTypeToSegment({ + baseUrl: attributes.baseUrl, + source: constructTemplateUrl(initialization.sourceURL, templateValues), + range: initialization.range + }); + var segments = parseTemplateInfo(attributes, segmentTimeline); + return segments.map(function (segment) { + templateValues.Number = segment.number; + templateValues.Time = segment.time; + var uri = constructTemplateUrl(attributes.media || '', templateValues); + return { + uri: uri, + timeline: segment.timeline, + duration: segment.duration, + resolvedUri: resolveUrl_1(attributes.baseUrl || '', uri), + map: mapSegment, + number: segment.number + }; + }); + }; + + /** + * Converts a (of type URLType from the DASH spec 5.3.9.2 Table 14) + * to an object that matches the output of a segment in videojs/mpd-parser + * + * @param {Object} attributes + * Object containing all inherited attributes from parent elements with attribute + * names as keys + * @param {Object} segmentUrl + * node to translate into a segment object + * @return {Object} translated segment object + */ + + var SegmentURLToSegmentObject = function SegmentURLToSegmentObject(attributes, segmentUrl) { + var baseUrl = attributes.baseUrl, + _attributes$initializ = attributes.initialization, + initialization = _attributes$initializ === void 0 ? {} : _attributes$initializ; + var initSegment = urlTypeToSegment({ + baseUrl: baseUrl, + source: initialization.sourceURL, + range: initialization.range + }); + var segment = urlTypeToSegment({ + baseUrl: baseUrl, + source: segmentUrl.media, + range: segmentUrl.mediaRange + }); + segment.map = initSegment; + return segment; + }; + /** + * Generates a list of segments using information provided by the SegmentList element + * SegmentList (DASH SPEC Section 5.3.9.3.2) contains a set of nodes. Each + * node should be translated into segment. + * + * @param {Object} attributes + * Object containing all inherited attributes from parent elements with attribute + * names as keys + * @param {Object[]|undefined} segmentTimeline + * List of objects representing the attributes of each S element contained within + * the SegmentTimeline element + * @return {Object.} list of segments + */ + + + var segmentsFromList = function segmentsFromList(attributes, segmentTimeline) { + var duration = attributes.duration, + _attributes$segmentUr = attributes.segmentUrls, + segmentUrls = _attributes$segmentUr === void 0 ? [] : _attributes$segmentUr; // Per spec (5.3.9.2.1) no way to determine segment duration OR + // if both SegmentTimeline and @duration are defined, it is outside of spec. + + if (!duration && !segmentTimeline || duration && segmentTimeline) { + throw new Error(errors.SEGMENT_TIME_UNSPECIFIED); + } + + var segmentUrlMap = segmentUrls.map(function (segmentUrlObject) { + return SegmentURLToSegmentObject(attributes, segmentUrlObject); + }); + var segmentTimeInfo; + + if (duration) { + segmentTimeInfo = parseByDuration(attributes); + } + + if (segmentTimeline) { + segmentTimeInfo = parseByTimeline(attributes, segmentTimeline); + } + + var segments = segmentTimeInfo.map(function (segmentTime, index) { + if (segmentUrlMap[index]) { + var segment = segmentUrlMap[index]; + segment.timeline = segmentTime.timeline; + segment.duration = segmentTime.duration; + segment.number = segmentTime.number; + return segment; + } // Since we're mapping we should get rid of any blank segments (in case + // the given SegmentTimeline is handling for more elements than we have + // SegmentURLs for). + + }).filter(function (segment) { + return segment; + }); + return segments; + }; + + var generateSegments = function generateSegments(_ref) { + var attributes = _ref.attributes, + segmentInfo = _ref.segmentInfo; + var segmentAttributes; + var segmentsFn; + + if (segmentInfo.template) { + segmentsFn = segmentsFromTemplate; + segmentAttributes = merge(attributes, segmentInfo.template); + } else if (segmentInfo.base) { + segmentsFn = segmentsFromBase; + segmentAttributes = merge(attributes, segmentInfo.base); + } else if (segmentInfo.list) { + segmentsFn = segmentsFromList; + segmentAttributes = merge(attributes, segmentInfo.list); + } + + var segmentsInfo = { + attributes: attributes + }; + + if (!segmentsFn) { + return segmentsInfo; + } + + var segments = segmentsFn(segmentAttributes, segmentInfo.timeline); // The @duration attribute will be used to determin the playlist's targetDuration which + // must be in seconds. Since we've generated the segment list, we no longer need + // @duration to be in @timescale units, so we can convert it here. + + if (segmentAttributes.duration) { + var _segmentAttributes = segmentAttributes, + duration = _segmentAttributes.duration, + _segmentAttributes$ti = _segmentAttributes.timescale, + timescale = _segmentAttributes$ti === void 0 ? 1 : _segmentAttributes$ti; + segmentAttributes.duration = duration / timescale; + } else if (segments.length) { + // if there is no @duration attribute, use the largest segment duration as + // as target duration + segmentAttributes.duration = segments.reduce(function (max, segment) { + return Math.max(max, Math.ceil(segment.duration)); + }, 0); + } else { + segmentAttributes.duration = 0; + } + + segmentsInfo.attributes = segmentAttributes; + segmentsInfo.segments = segments; // This is a sidx box without actual segment information + + if (segmentInfo.base && segmentAttributes.indexRange) { + segmentsInfo.sidx = segments[0]; + segmentsInfo.segments = []; + } + + return segmentsInfo; + }; + var toPlaylists = function toPlaylists(representations) { + return representations.map(generateSegments); + }; + + var findChildren = function findChildren(element, name) { + return from(element.childNodes).filter(function (_ref) { + var tagName = _ref.tagName; + return tagName === name; + }); + }; + var getContent = function getContent(element) { + return element.textContent.trim(); + }; + + var parseDuration = function parseDuration(str) { + var SECONDS_IN_YEAR = 365 * 24 * 60 * 60; + var SECONDS_IN_MONTH = 30 * 24 * 60 * 60; + var SECONDS_IN_DAY = 24 * 60 * 60; + var SECONDS_IN_HOUR = 60 * 60; + var SECONDS_IN_MIN = 60; // P10Y10M10DT10H10M10.1S + + var durationRegex = /P(?:(\d*)Y)?(?:(\d*)M)?(?:(\d*)D)?(?:T(?:(\d*)H)?(?:(\d*)M)?(?:([\d.]*)S)?)?/; + var match = durationRegex.exec(str); + + if (!match) { + return 0; + } + + var _match$slice = match.slice(1), + year = _match$slice[0], + month = _match$slice[1], + day = _match$slice[2], + hour = _match$slice[3], + minute = _match$slice[4], + second = _match$slice[5]; + + return parseFloat(year || 0) * SECONDS_IN_YEAR + parseFloat(month || 0) * SECONDS_IN_MONTH + parseFloat(day || 0) * SECONDS_IN_DAY + parseFloat(hour || 0) * SECONDS_IN_HOUR + parseFloat(minute || 0) * SECONDS_IN_MIN + parseFloat(second || 0); + }; + var parseDate = function parseDate(str) { + // Date format without timezone according to ISO 8601 + // YYY-MM-DDThh:mm:ss.ssssss + var dateRegex = /^\d+-\d+-\d+T\d+:\d+:\d+(\.\d+)?$/; // If the date string does not specifiy a timezone, we must specifiy UTC. This is + // expressed by ending with 'Z' + + if (dateRegex.test(str)) { + str += 'Z'; + } + + return Date.parse(str); + }; + + var parsers = { + /** + * Specifies the duration of the entire Media Presentation. Format is a duration string + * as specified in ISO 8601 + * + * @param {string} value + * value of attribute as a string + * @return {number} + * The duration in seconds + */ + mediaPresentationDuration: function mediaPresentationDuration(value) { + return parseDuration(value); + }, + + /** + * Specifies the Segment availability start time for all Segments referred to in this + * MPD. For a dynamic manifest, it specifies the anchor for the earliest availability + * time. Format is a date string as specified in ISO 8601 + * + * @param {string} value + * value of attribute as a string + * @return {number} + * The date as seconds from unix epoch + */ + availabilityStartTime: function availabilityStartTime(value) { + return parseDate(value) / 1000; + }, + + /** + * Specifies the smallest period between potential changes to the MPD. Format is a + * duration string as specified in ISO 8601 + * + * @param {string} value + * value of attribute as a string + * @return {number} + * The duration in seconds + */ + minimumUpdatePeriod: function minimumUpdatePeriod(value) { + return parseDuration(value); + }, + + /** + * Specifies the suggested presentation delay. Format is a + * duration string as specified in ISO 8601 + * + * @param {string} value + * value of attribute as a string + * @return {number} + * The duration in seconds + */ + suggestedPresentationDelay: function suggestedPresentationDelay(value) { + return parseDuration(value); + }, + + /** + * specifices the type of mpd. Can be either "static" or "dynamic" + * + * @param {string} value + * value of attribute as a string + * + * @return {string} + * The type as a string + */ + type: function type(value) { + return value; + }, + + /** + * Specifies the duration of the smallest time shifting buffer for any Representation + * in the MPD. Format is a duration string as specified in ISO 8601 + * + * @param {string} value + * value of attribute as a string + * @return {number} + * The duration in seconds + */ + timeShiftBufferDepth: function timeShiftBufferDepth(value) { + return parseDuration(value); + }, + + /** + * Specifies the PeriodStart time of the Period relative to the availabilityStarttime. + * Format is a duration string as specified in ISO 8601 + * + * @param {string} value + * value of attribute as a string + * @return {number} + * The duration in seconds + */ + start: function start(value) { + return parseDuration(value); + }, + + /** + * Specifies the width of the visual presentation + * + * @param {string} value + * value of attribute as a string + * @return {number} + * The parsed width + */ + width: function width(value) { + return parseInt(value, 10); + }, + + /** + * Specifies the height of the visual presentation + * + * @param {string} value + * value of attribute as a string + * @return {number} + * The parsed height + */ + height: function height(value) { + return parseInt(value, 10); + }, + + /** + * Specifies the bitrate of the representation + * + * @param {string} value + * value of attribute as a string + * @return {number} + * The parsed bandwidth + */ + bandwidth: function bandwidth(value) { + return parseInt(value, 10); + }, + + /** + * Specifies the number of the first Media Segment in this Representation in the Period + * + * @param {string} value + * value of attribute as a string + * @return {number} + * The parsed number + */ + startNumber: function startNumber(value) { + return parseInt(value, 10); + }, + + /** + * Specifies the timescale in units per seconds + * + * @param {string} value + * value of attribute as a string + * @return {number} + * The aprsed timescale + */ + timescale: function timescale(value) { + return parseInt(value, 10); + }, + + /** + * Specifies the constant approximate Segment duration + * NOTE: The element also contains an @duration attribute. This duration + * specifies the duration of the Period. This attribute is currently not + * supported by the rest of the parser, however we still check for it to prevent + * errors. + * + * @param {string} value + * value of attribute as a string + * @return {number} + * The parsed duration + */ + duration: function duration(value) { + var parsedValue = parseInt(value, 10); + + if (isNaN(parsedValue)) { + return parseDuration(value); + } + + return parsedValue; + }, + + /** + * Specifies the Segment duration, in units of the value of the @timescale. + * + * @param {string} value + * value of attribute as a string + * @return {number} + * The parsed duration + */ + d: function d(value) { + return parseInt(value, 10); + }, + + /** + * Specifies the MPD start time, in @timescale units, the first Segment in the series + * starts relative to the beginning of the Period + * + * @param {string} value + * value of attribute as a string + * @return {number} + * The parsed time + */ + t: function t(value) { + return parseInt(value, 10); + }, + + /** + * Specifies the repeat count of the number of following contiguous Segments with the + * same duration expressed by the value of @d + * + * @param {string} value + * value of attribute as a string + * @return {number} + * The parsed number + */ + r: function r(value) { + return parseInt(value, 10); + }, + + /** + * Default parser for all other attributes. Acts as a no-op and just returns the value + * as a string + * + * @param {string} value + * value of attribute as a string + * @return {string} + * Unparsed value + */ + DEFAULT: function DEFAULT(value) { + return value; + } + }; + /** + * Gets all the attributes and values of the provided node, parses attributes with known + * types, and returns an object with attribute names mapped to values. + * + * @param {Node} el + * The node to parse attributes from + * @return {Object} + * Object with all attributes of el parsed + */ + + var parseAttributes$1 = function parseAttributes(el) { + if (!(el && el.attributes)) { + return {}; + } + + return from(el.attributes).reduce(function (a, e) { + var parseFn = parsers[e.name] || parsers.DEFAULT; + a[e.name] = parseFn(e.value); + return a; + }, {}); + }; + + var keySystemsMap = { + 'urn:uuid:1077efec-c0b2-4d02-ace3-3c1e52e2fb4b': 'org.w3.clearkey', + 'urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed': 'com.widevine.alpha', + 'urn:uuid:9a04f079-9840-4286-ab92-e65be0885f95': 'com.microsoft.playready', + 'urn:uuid:f239e769-efa3-4850-9c16-a903c6932efb': 'com.adobe.primetime' + }; + /** + * Builds a list of urls that is the product of the reference urls and BaseURL values + * + * @param {string[]} referenceUrls + * List of reference urls to resolve to + * @param {Node[]} baseUrlElements + * List of BaseURL nodes from the mpd + * @return {string[]} + * List of resolved urls + */ + + var buildBaseUrls = function buildBaseUrls(referenceUrls, baseUrlElements) { + if (!baseUrlElements.length) { + return referenceUrls; + } + + return flatten(referenceUrls.map(function (reference) { + return baseUrlElements.map(function (baseUrlElement) { + return resolveUrl_1(reference, getContent(baseUrlElement)); + }); + })); + }; + /** + * Contains all Segment information for its containing AdaptationSet + * + * @typedef {Object} SegmentInformation + * @property {Object|undefined} template + * Contains the attributes for the SegmentTemplate node + * @property {Object[]|undefined} timeline + * Contains a list of atrributes for each S node within the SegmentTimeline node + * @property {Object|undefined} list + * Contains the attributes for the SegmentList node + * @property {Object|undefined} base + * Contains the attributes for the SegmentBase node + */ + + /** + * Returns all available Segment information contained within the AdaptationSet node + * + * @param {Node} adaptationSet + * The AdaptationSet node to get Segment information from + * @return {SegmentInformation} + * The Segment information contained within the provided AdaptationSet + */ + + var getSegmentInformation = function getSegmentInformation(adaptationSet) { + var segmentTemplate = findChildren(adaptationSet, 'SegmentTemplate')[0]; + var segmentList = findChildren(adaptationSet, 'SegmentList')[0]; + var segmentUrls = segmentList && findChildren(segmentList, 'SegmentURL').map(function (s) { + return merge({ + tag: 'SegmentURL' + }, parseAttributes$1(s)); + }); + var segmentBase = findChildren(adaptationSet, 'SegmentBase')[0]; + var segmentTimelineParentNode = segmentList || segmentTemplate; + var segmentTimeline = segmentTimelineParentNode && findChildren(segmentTimelineParentNode, 'SegmentTimeline')[0]; + var segmentInitializationParentNode = segmentList || segmentBase || segmentTemplate; + var segmentInitialization = segmentInitializationParentNode && findChildren(segmentInitializationParentNode, 'Initialization')[0]; // SegmentTemplate is handled slightly differently, since it can have both + // @initialization and an node. @initialization can be templated, + // while the node can have a url and range specified. If the has + // both @initialization and an subelement we opt to override with + // the node, as this interaction is not defined in the spec. + + var template = segmentTemplate && parseAttributes$1(segmentTemplate); + + if (template && segmentInitialization) { + template.initialization = segmentInitialization && parseAttributes$1(segmentInitialization); + } else if (template && template.initialization) { + // If it is @initialization we convert it to an object since this is the format that + // later functions will rely on for the initialization segment. This is only valid + // for + template.initialization = { + sourceURL: template.initialization + }; + } + + var segmentInfo = { + template: template, + timeline: segmentTimeline && findChildren(segmentTimeline, 'S').map(function (s) { + return parseAttributes$1(s); + }), + list: segmentList && merge(parseAttributes$1(segmentList), { + segmentUrls: segmentUrls, + initialization: parseAttributes$1(segmentInitialization) + }), + base: segmentBase && merge(parseAttributes$1(segmentBase), { + initialization: parseAttributes$1(segmentInitialization) + }) + }; + Object.keys(segmentInfo).forEach(function (key) { + if (!segmentInfo[key]) { + delete segmentInfo[key]; + } + }); + return segmentInfo; + }; + /** + * Contains Segment information and attributes needed to construct a Playlist object + * from a Representation + * + * @typedef {Object} RepresentationInformation + * @property {SegmentInformation} segmentInfo + * Segment information for this Representation + * @property {Object} attributes + * Inherited attributes for this Representation + */ + + /** + * Maps a Representation node to an object containing Segment information and attributes + * + * @name inheritBaseUrlsCallback + * @function + * @param {Node} representation + * Representation node from the mpd + * @return {RepresentationInformation} + * Representation information needed to construct a Playlist object + */ + + /** + * Returns a callback for Array.prototype.map for mapping Representation nodes to + * Segment information and attributes using inherited BaseURL nodes. + * + * @param {Object} adaptationSetAttributes + * Contains attributes inherited by the AdaptationSet + * @param {string[]} adaptationSetBaseUrls + * Contains list of resolved base urls inherited by the AdaptationSet + * @param {SegmentInformation} adaptationSetSegmentInfo + * Contains Segment information for the AdaptationSet + * @return {inheritBaseUrlsCallback} + * Callback map function + */ + + var inheritBaseUrls = function inheritBaseUrls(adaptationSetAttributes, adaptationSetBaseUrls, adaptationSetSegmentInfo) { + return function (representation) { + var repBaseUrlElements = findChildren(representation, 'BaseURL'); + var repBaseUrls = buildBaseUrls(adaptationSetBaseUrls, repBaseUrlElements); + var attributes = merge(adaptationSetAttributes, parseAttributes$1(representation)); + var representationSegmentInfo = getSegmentInformation(representation); + return repBaseUrls.map(function (baseUrl) { + return { + segmentInfo: merge(adaptationSetSegmentInfo, representationSegmentInfo), + attributes: merge(attributes, { + baseUrl: baseUrl + }) + }; + }); + }; + }; + /** + * Tranforms a series of content protection nodes to + * an object containing pssh data by key system + * + * @param {Node[]} contentProtectionNodes + * Content protection nodes + * @return {Object} + * Object containing pssh data by key system + */ + + var generateKeySystemInformation = function generateKeySystemInformation(contentProtectionNodes) { + return contentProtectionNodes.reduce(function (acc, node) { + var attributes = parseAttributes$1(node); + var keySystem = keySystemsMap[attributes.schemeIdUri]; + + if (keySystem) { + acc[keySystem] = { + attributes: attributes + }; + var psshNode = findChildren(node, 'cenc:pssh')[0]; + + if (psshNode) { + var pssh = getContent(psshNode); + var psshBuffer = pssh && decodeB64ToUint8Array_1(pssh); + acc[keySystem].pssh = psshBuffer; + } + } + + return acc; + }, {}); + }; + /** + * Maps an AdaptationSet node to a list of Representation information objects + * + * @name toRepresentationsCallback + * @function + * @param {Node} adaptationSet + * AdaptationSet node from the mpd + * @return {RepresentationInformation[]} + * List of objects containing Representaion information + */ + + /** + * Returns a callback for Array.prototype.map for mapping AdaptationSet nodes to a list of + * Representation information objects + * + * @param {Object} periodAttributes + * Contains attributes inherited by the Period + * @param {string[]} periodBaseUrls + * Contains list of resolved base urls inherited by the Period + * @param {string[]} periodSegmentInfo + * Contains Segment Information at the period level + * @return {toRepresentationsCallback} + * Callback map function + */ + + + var toRepresentations = function toRepresentations(periodAttributes, periodBaseUrls, periodSegmentInfo) { + return function (adaptationSet) { + var adaptationSetAttributes = parseAttributes$1(adaptationSet); + var adaptationSetBaseUrls = buildBaseUrls(periodBaseUrls, findChildren(adaptationSet, 'BaseURL')); + var role = findChildren(adaptationSet, 'Role')[0]; + var roleAttributes = { + role: parseAttributes$1(role) + }; + var attrs = merge(periodAttributes, adaptationSetAttributes, roleAttributes); + var contentProtection = generateKeySystemInformation(findChildren(adaptationSet, 'ContentProtection')); + + if (Object.keys(contentProtection).length) { + attrs = merge(attrs, { + contentProtection: contentProtection + }); + } + + var segmentInfo = getSegmentInformation(adaptationSet); + var representations = findChildren(adaptationSet, 'Representation'); + var adaptationSetSegmentInfo = merge(periodSegmentInfo, segmentInfo); + return flatten(representations.map(inheritBaseUrls(attrs, adaptationSetBaseUrls, adaptationSetSegmentInfo))); + }; + }; + /** + * Maps an Period node to a list of Representation inforamtion objects for all + * AdaptationSet nodes contained within the Period + * + * @name toAdaptationSetsCallback + * @function + * @param {Node} period + * Period node from the mpd + * @param {number} periodIndex + * Index of the Period within the mpd + * @return {RepresentationInformation[]} + * List of objects containing Representaion information + */ + + /** + * Returns a callback for Array.prototype.map for mapping Period nodes to a list of + * Representation information objects + * + * @param {Object} mpdAttributes + * Contains attributes inherited by the mpd + * @param {string[]} mpdBaseUrls + * Contains list of resolved base urls inherited by the mpd + * @return {toAdaptationSetsCallback} + * Callback map function + */ + + var toAdaptationSets = function toAdaptationSets(mpdAttributes, mpdBaseUrls) { + return function (period, index) { + var periodBaseUrls = buildBaseUrls(mpdBaseUrls, findChildren(period, 'BaseURL')); + var periodAtt = parseAttributes$1(period); + var parsedPeriodId = parseInt(periodAtt.id, 10); // fallback to mapping index if Period@id is not a number + + var periodIndex = window_1.isNaN(parsedPeriodId) ? index : parsedPeriodId; + var periodAttributes = merge(mpdAttributes, { + periodIndex: periodIndex + }); + var adaptationSets = findChildren(period, 'AdaptationSet'); + var periodSegmentInfo = getSegmentInformation(period); + return flatten(adaptationSets.map(toRepresentations(periodAttributes, periodBaseUrls, periodSegmentInfo))); + }; + }; + /** + * Traverses the mpd xml tree to generate a list of Representation information objects + * that have inherited attributes from parent nodes + * + * @param {Node} mpd + * The root node of the mpd + * @param {Object} options + * Available options for inheritAttributes + * @param {string} options.manifestUri + * The uri source of the mpd + * @param {number} options.NOW + * Current time per DASH IOP. Default is current time in ms since epoch + * @param {number} options.clientOffset + * Client time difference from NOW (in milliseconds) + * @return {RepresentationInformation[]} + * List of objects containing Representation information + */ + + var inheritAttributes = function inheritAttributes(mpd, options) { + if (options === void 0) { + options = {}; + } + + var _options = options, + _options$manifestUri = _options.manifestUri, + manifestUri = _options$manifestUri === void 0 ? '' : _options$manifestUri, + _options$NOW = _options.NOW, + NOW = _options$NOW === void 0 ? Date.now() : _options$NOW, + _options$clientOffset = _options.clientOffset, + clientOffset = _options$clientOffset === void 0 ? 0 : _options$clientOffset; + var periods = findChildren(mpd, 'Period'); + + if (!periods.length) { + throw new Error(errors.INVALID_NUMBER_OF_PERIOD); + } + + var mpdAttributes = parseAttributes$1(mpd); + var mpdBaseUrls = buildBaseUrls([manifestUri], findChildren(mpd, 'BaseURL')); + mpdAttributes.sourceDuration = mpdAttributes.mediaPresentationDuration || 0; + mpdAttributes.NOW = NOW; + mpdAttributes.clientOffset = clientOffset; + return flatten(periods.map(toAdaptationSets(mpdAttributes, mpdBaseUrls))); + }; + + var stringToMpdXml = function stringToMpdXml(manifestString) { + if (manifestString === '') { + throw new Error(errors.DASH_EMPTY_MANIFEST); + } + + var parser = new domParser_3(); + var xml = parser.parseFromString(manifestString, 'application/xml'); + var mpd = xml && xml.documentElement.tagName === 'MPD' ? xml.documentElement : null; + + if (!mpd || mpd && mpd.getElementsByTagName('parsererror').length > 0) { + throw new Error(errors.DASH_INVALID_XML); + } + + return mpd; + }; + + /** + * Parses the manifest for a UTCTiming node, returning the nodes attributes if found + * + * @param {string} mpd + * XML string of the MPD manifest + * @return {Object|null} + * Attributes of UTCTiming node specified in the manifest. Null if none found + */ + + var parseUTCTimingScheme = function parseUTCTimingScheme(mpd) { + var UTCTimingNode = findChildren(mpd, 'UTCTiming')[0]; + + if (!UTCTimingNode) { + return null; + } + + var attributes = parseAttributes$1(UTCTimingNode); + + switch (attributes.schemeIdUri) { + case 'urn:mpeg:dash:utc:http-head:2014': + case 'urn:mpeg:dash:utc:http-head:2012': + attributes.method = 'HEAD'; + break; + + case 'urn:mpeg:dash:utc:http-xsdate:2014': + case 'urn:mpeg:dash:utc:http-iso:2014': + case 'urn:mpeg:dash:utc:http-xsdate:2012': + case 'urn:mpeg:dash:utc:http-iso:2012': + attributes.method = 'GET'; + break; + + case 'urn:mpeg:dash:utc:direct:2014': + case 'urn:mpeg:dash:utc:direct:2012': + attributes.method = 'DIRECT'; + attributes.value = Date.parse(attributes.value); + break; + + case 'urn:mpeg:dash:utc:http-ntp:2014': + case 'urn:mpeg:dash:utc:ntp:2014': + case 'urn:mpeg:dash:utc:sntp:2014': + default: + throw new Error(errors.UNSUPPORTED_UTC_TIMING_SCHEME); + } + + return attributes; + }; + + var parse$1 = function parse(manifestString, options) { + if (options === void 0) { + options = {}; + } + + return toM3u8(toPlaylists(inheritAttributes(stringToMpdXml(manifestString), options)), options.sidxMapping); + }; + /** + * Parses the manifest for a UTCTiming node, returning the nodes attributes if found + * + * @param {string} manifestString + * XML string of the MPD manifest + * @return {Object|null} + * Attributes of UTCTiming node specified in the manifest. Null if none found + */ + + + var parseUTCTiming = function parseUTCTiming(manifestString) { + return parseUTCTimingScheme(stringToMpdXml(manifestString)); + }; + + /** + * mux.js + * + * Copyright (c) Brightcove + * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE + */ + var toUnsigned = function(value) { + return value >>> 0; + }; + + var toHexString = function(value) { + return ('00' + value.toString(16)).slice(-2); + }; + + var bin = { + toUnsigned: toUnsigned, + toHexString: toHexString + }; + + var + inspectMp4, + textifyMp4, + toUnsigned$1 = bin.toUnsigned, + parseMp4Date = function(seconds) { + return new Date(seconds * 1000 - 2082844800000); + }, + parseSampleFlags = function(flags) { + return { + isLeading: (flags[0] & 0x0c) >>> 2, + dependsOn: flags[0] & 0x03, + isDependedOn: (flags[1] & 0xc0) >>> 6, + hasRedundancy: (flags[1] & 0x30) >>> 4, + paddingValue: (flags[1] & 0x0e) >>> 1, + isNonSyncSample: flags[1] & 0x01, + degradationPriority: (flags[2] << 8) | flags[3] + }; + }, + /** + * Returns the string representation of an ASCII encoded four byte buffer. + * @param buffer {Uint8Array} a four-byte buffer to translate + * @return {string} the corresponding string + */ + parseType = function(buffer) { + var result = ''; + result += String.fromCharCode(buffer[0]); + result += String.fromCharCode(buffer[1]); + result += String.fromCharCode(buffer[2]); + result += String.fromCharCode(buffer[3]); + return result; + }, + // Find the data for a box specified by its path + findBox = function(data, path) { + var results = [], + i, size, type, end, subresults; + + if (!path.length) { + // short-circuit the search for empty paths + return null; + } + + for (i = 0; i < data.byteLength;) { + size = toUnsigned$1(data[i] << 24 | + data[i + 1] << 16 | + data[i + 2] << 8 | + data[i + 3]); + + type = parseType(data.subarray(i + 4, i + 8)); + + end = size > 1 ? i + size : data.byteLength; + + if (type === path[0]) { + if (path.length === 1) { + // this is the end of the path and we've found the box we were + // looking for + results.push(data.subarray(i + 8, end)); + } else { + // recursively search for the next box along the path + subresults = findBox(data.subarray(i + 8, end), path.slice(1)); + if (subresults.length) { + results = results.concat(subresults); + } + } + } + i = end; + } + + // we've finished searching all of data + return results; + }, + nalParse = function(avcStream) { + var + avcView = new DataView(avcStream.buffer, avcStream.byteOffset, avcStream.byteLength), + result = [], + i, + length; + for (i = 0; i + 4 < avcStream.length; i += length) { + length = avcView.getUint32(i); + i += 4; + + // bail if this doesn't appear to be an H264 stream + if (length <= 0) { + result.push('MALFORMED DATA'); + continue; + } + + switch (avcStream[i] & 0x1F) { + case 0x01: + result.push('slice_layer_without_partitioning_rbsp'); + break; + case 0x05: + result.push('slice_layer_without_partitioning_rbsp_idr'); + break; + case 0x06: + result.push('sei_rbsp'); + break; + case 0x07: + result.push('seq_parameter_set_rbsp'); + break; + case 0x08: + result.push('pic_parameter_set_rbsp'); + break; + case 0x09: + result.push('access_unit_delimiter_rbsp'); + break; + default: + result.push('UNKNOWN NAL - ' + avcStream[i] & 0x1F); + break; + } + } + return result; + }, + + // registry of handlers for individual mp4 box types + parse$2 = { + // codingname, not a first-class box type. stsd entries share the + // same format as real boxes so the parsing infrastructure can be + // shared + avc1: function(data) { + var view = new DataView(data.buffer, data.byteOffset, data.byteLength); + return { + dataReferenceIndex: view.getUint16(6), + width: view.getUint16(24), + height: view.getUint16(26), + horizresolution: view.getUint16(28) + (view.getUint16(30) / 16), + vertresolution: view.getUint16(32) + (view.getUint16(34) / 16), + frameCount: view.getUint16(40), + depth: view.getUint16(74), + config: inspectMp4(data.subarray(78, data.byteLength)) + }; + }, + avcC: function(data) { + var + view = new DataView(data.buffer, data.byteOffset, data.byteLength), + result = { + configurationVersion: data[0], + avcProfileIndication: data[1], + profileCompatibility: data[2], + avcLevelIndication: data[3], + lengthSizeMinusOne: data[4] & 0x03, + sps: [], + pps: [] + }, + numOfSequenceParameterSets = data[5] & 0x1f, + numOfPictureParameterSets, + nalSize, + offset, + i; + + // iterate past any SPSs + offset = 6; + for (i = 0; i < numOfSequenceParameterSets; i++) { + nalSize = view.getUint16(offset); + offset += 2; + result.sps.push(new Uint8Array(data.subarray(offset, offset + nalSize))); + offset += nalSize; + } + // iterate past any PPSs + numOfPictureParameterSets = data[offset]; + offset++; + for (i = 0; i < numOfPictureParameterSets; i++) { + nalSize = view.getUint16(offset); + offset += 2; + result.pps.push(new Uint8Array(data.subarray(offset, offset + nalSize))); + offset += nalSize; + } + return result; + }, + btrt: function(data) { + var view = new DataView(data.buffer, data.byteOffset, data.byteLength); + return { + bufferSizeDB: view.getUint32(0), + maxBitrate: view.getUint32(4), + avgBitrate: view.getUint32(8) + }; + }, + esds: function(data) { + return { + version: data[0], + flags: new Uint8Array(data.subarray(1, 4)), + esId: (data[6] << 8) | data[7], + streamPriority: data[8] & 0x1f, + decoderConfig: { + objectProfileIndication: data[11], + streamType: (data[12] >>> 2) & 0x3f, + bufferSize: (data[13] << 16) | (data[14] << 8) | data[15], + maxBitrate: (data[16] << 24) | + (data[17] << 16) | + (data[18] << 8) | + data[19], + avgBitrate: (data[20] << 24) | + (data[21] << 16) | + (data[22] << 8) | + data[23], + decoderConfigDescriptor: { + tag: data[24], + length: data[25], + audioObjectType: (data[26] >>> 3) & 0x1f, + samplingFrequencyIndex: ((data[26] & 0x07) << 1) | + ((data[27] >>> 7) & 0x01), + channelConfiguration: (data[27] >>> 3) & 0x0f + } + } + }; + }, + ftyp: function(data) { + var + view = new DataView(data.buffer, data.byteOffset, data.byteLength), + result = { + majorBrand: parseType(data.subarray(0, 4)), + minorVersion: view.getUint32(4), + compatibleBrands: [] + }, + i = 8; + while (i < data.byteLength) { + result.compatibleBrands.push(parseType(data.subarray(i, i + 4))); + i += 4; + } + return result; + }, + dinf: function(data) { + return { + boxes: inspectMp4(data) + }; + }, + dref: function(data) { + return { + version: data[0], + flags: new Uint8Array(data.subarray(1, 4)), + dataReferences: inspectMp4(data.subarray(8)) + }; + }, + hdlr: function(data) { + var + view = new DataView(data.buffer, data.byteOffset, data.byteLength), + result = { + version: view.getUint8(0), + flags: new Uint8Array(data.subarray(1, 4)), + handlerType: parseType(data.subarray(8, 12)), + name: '' + }, + i = 8; + + // parse out the name field + for (i = 24; i < data.byteLength; i++) { + if (data[i] === 0x00) { + // the name field is null-terminated + i++; + break; + } + result.name += String.fromCharCode(data[i]); + } + // decode UTF-8 to javascript's internal representation + // see http://ecmanaut.blogspot.com/2006/07/encoding-decoding-utf8-in-javascript.html + result.name = decodeURIComponent(escape(result.name)); + + return result; + }, + mdat: function(data) { + return { + byteLength: data.byteLength, + nals: nalParse(data) + }; + }, + mdhd: function(data) { + var + view = new DataView(data.buffer, data.byteOffset, data.byteLength), + i = 4, + language, + result = { + version: view.getUint8(0), + flags: new Uint8Array(data.subarray(1, 4)), + language: '' + }; + if (result.version === 1) { + i += 4; + result.creationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes + i += 8; + result.modificationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes + i += 4; + result.timescale = view.getUint32(i); + i += 8; + result.duration = view.getUint32(i); // truncating top 4 bytes + } else { + result.creationTime = parseMp4Date(view.getUint32(i)); + i += 4; + result.modificationTime = parseMp4Date(view.getUint32(i)); + i += 4; + result.timescale = view.getUint32(i); + i += 4; + result.duration = view.getUint32(i); + } + i += 4; + // language is stored as an ISO-639-2/T code in an array of three 5-bit fields + // each field is the packed difference between its ASCII value and 0x60 + language = view.getUint16(i); + result.language += String.fromCharCode((language >> 10) + 0x60); + result.language += String.fromCharCode(((language & 0x03e0) >> 5) + 0x60); + result.language += String.fromCharCode((language & 0x1f) + 0x60); + + return result; + }, + mdia: function(data) { + return { + boxes: inspectMp4(data) + }; + }, + mfhd: function(data) { + return { + version: data[0], + flags: new Uint8Array(data.subarray(1, 4)), + sequenceNumber: (data[4] << 24) | + (data[5] << 16) | + (data[6] << 8) | + (data[7]) + }; + }, + minf: function(data) { + return { + boxes: inspectMp4(data) + }; + }, + // codingname, not a first-class box type. stsd entries share the + // same format as real boxes so the parsing infrastructure can be + // shared + mp4a: function(data) { + var + view = new DataView(data.buffer, data.byteOffset, data.byteLength), + result = { + // 6 bytes reserved + dataReferenceIndex: view.getUint16(6), + // 4 + 4 bytes reserved + channelcount: view.getUint16(16), + samplesize: view.getUint16(18), + // 2 bytes pre_defined + // 2 bytes reserved + samplerate: view.getUint16(24) + (view.getUint16(26) / 65536) + }; + + // if there are more bytes to process, assume this is an ISO/IEC + // 14496-14 MP4AudioSampleEntry and parse the ESDBox + if (data.byteLength > 28) { + result.streamDescriptor = inspectMp4(data.subarray(28))[0]; + } + return result; + }, + moof: function(data) { + return { + boxes: inspectMp4(data) + }; + }, + moov: function(data) { + return { + boxes: inspectMp4(data) + }; + }, + mvex: function(data) { + return { + boxes: inspectMp4(data) + }; + }, + mvhd: function(data) { + var + view = new DataView(data.buffer, data.byteOffset, data.byteLength), + i = 4, + result = { + version: view.getUint8(0), + flags: new Uint8Array(data.subarray(1, 4)) + }; + + if (result.version === 1) { + i += 4; + result.creationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes + i += 8; + result.modificationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes + i += 4; + result.timescale = view.getUint32(i); + i += 8; + result.duration = view.getUint32(i); // truncating top 4 bytes + } else { + result.creationTime = parseMp4Date(view.getUint32(i)); + i += 4; + result.modificationTime = parseMp4Date(view.getUint32(i)); + i += 4; + result.timescale = view.getUint32(i); + i += 4; + result.duration = view.getUint32(i); + } + i += 4; + + // convert fixed-point, base 16 back to a number + result.rate = view.getUint16(i) + (view.getUint16(i + 2) / 16); + i += 4; + result.volume = view.getUint8(i) + (view.getUint8(i + 1) / 8); + i += 2; + i += 2; + i += 2 * 4; + result.matrix = new Uint32Array(data.subarray(i, i + (9 * 4))); + i += 9 * 4; + i += 6 * 4; + result.nextTrackId = view.getUint32(i); + return result; + }, + pdin: function(data) { + var view = new DataView(data.buffer, data.byteOffset, data.byteLength); + return { + version: view.getUint8(0), + flags: new Uint8Array(data.subarray(1, 4)), + rate: view.getUint32(4), + initialDelay: view.getUint32(8) + }; + }, + sdtp: function(data) { + var + result = { + version: data[0], + flags: new Uint8Array(data.subarray(1, 4)), + samples: [] + }, i; + + for (i = 4; i < data.byteLength; i++) { + result.samples.push({ + dependsOn: (data[i] & 0x30) >> 4, + isDependedOn: (data[i] & 0x0c) >> 2, + hasRedundancy: data[i] & 0x03 + }); + } + return result; + }, + sidx: function(data) { + var view = new DataView(data.buffer, data.byteOffset, data.byteLength), + result = { + version: data[0], + flags: new Uint8Array(data.subarray(1, 4)), + references: [], + referenceId: view.getUint32(4), + timescale: view.getUint32(8), + earliestPresentationTime: view.getUint32(12), + firstOffset: view.getUint32(16) + }, + referenceCount = view.getUint16(22), + i; + + for (i = 24; referenceCount; i += 12, referenceCount--) { + result.references.push({ + referenceType: (data[i] & 0x80) >>> 7, + referencedSize: view.getUint32(i) & 0x7FFFFFFF, + subsegmentDuration: view.getUint32(i + 4), + startsWithSap: !!(data[i + 8] & 0x80), + sapType: (data[i + 8] & 0x70) >>> 4, + sapDeltaTime: view.getUint32(i + 8) & 0x0FFFFFFF + }); + } + + return result; + }, + smhd: function(data) { + return { + version: data[0], + flags: new Uint8Array(data.subarray(1, 4)), + balance: data[4] + (data[5] / 256) + }; + }, + stbl: function(data) { + return { + boxes: inspectMp4(data) + }; + }, + stco: function(data) { + var + view = new DataView(data.buffer, data.byteOffset, data.byteLength), + result = { + version: data[0], + flags: new Uint8Array(data.subarray(1, 4)), + chunkOffsets: [] + }, + entryCount = view.getUint32(4), + i; + for (i = 8; entryCount; i += 4, entryCount--) { + result.chunkOffsets.push(view.getUint32(i)); + } + return result; + }, + stsc: function(data) { + var + view = new DataView(data.buffer, data.byteOffset, data.byteLength), + entryCount = view.getUint32(4), + result = { + version: data[0], + flags: new Uint8Array(data.subarray(1, 4)), + sampleToChunks: [] + }, + i; + for (i = 8; entryCount; i += 12, entryCount--) { + result.sampleToChunks.push({ + firstChunk: view.getUint32(i), + samplesPerChunk: view.getUint32(i + 4), + sampleDescriptionIndex: view.getUint32(i + 8) + }); + } + return result; + }, + stsd: function(data) { + return { + version: data[0], + flags: new Uint8Array(data.subarray(1, 4)), + sampleDescriptions: inspectMp4(data.subarray(8)) + }; + }, + stsz: function(data) { + var + view = new DataView(data.buffer, data.byteOffset, data.byteLength), + result = { + version: data[0], + flags: new Uint8Array(data.subarray(1, 4)), + sampleSize: view.getUint32(4), + entries: [] + }, + i; + for (i = 12; i < data.byteLength; i += 4) { + result.entries.push(view.getUint32(i)); + } + return result; + }, + stts: function(data) { + var + view = new DataView(data.buffer, data.byteOffset, data.byteLength), + result = { + version: data[0], + flags: new Uint8Array(data.subarray(1, 4)), + timeToSamples: [] + }, + entryCount = view.getUint32(4), + i; + + for (i = 8; entryCount; i += 8, entryCount--) { + result.timeToSamples.push({ + sampleCount: view.getUint32(i), + sampleDelta: view.getUint32(i + 4) + }); + } + return result; + }, + styp: function(data) { + return parse$2.ftyp(data); + }, + tfdt: function(data) { + var result = { + version: data[0], + flags: new Uint8Array(data.subarray(1, 4)), + baseMediaDecodeTime: toUnsigned$1(data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]) + }; + if (result.version === 1) { + result.baseMediaDecodeTime *= Math.pow(2, 32); + result.baseMediaDecodeTime += toUnsigned$1(data[8] << 24 | data[9] << 16 | data[10] << 8 | data[11]); + } + return result; + }, + tfhd: function(data) { + var + view = new DataView(data.buffer, data.byteOffset, data.byteLength), + result = { + version: data[0], + flags: new Uint8Array(data.subarray(1, 4)), + trackId: view.getUint32(4) + }, + baseDataOffsetPresent = result.flags[2] & 0x01, + sampleDescriptionIndexPresent = result.flags[2] & 0x02, + defaultSampleDurationPresent = result.flags[2] & 0x08, + defaultSampleSizePresent = result.flags[2] & 0x10, + defaultSampleFlagsPresent = result.flags[2] & 0x20, + durationIsEmpty = result.flags[0] & 0x010000, + defaultBaseIsMoof = result.flags[0] & 0x020000, + i; + + i = 8; + if (baseDataOffsetPresent) { + i += 4; // truncate top 4 bytes + // FIXME: should we read the full 64 bits? + result.baseDataOffset = view.getUint32(12); + i += 4; + } + if (sampleDescriptionIndexPresent) { + result.sampleDescriptionIndex = view.getUint32(i); + i += 4; + } + if (defaultSampleDurationPresent) { + result.defaultSampleDuration = view.getUint32(i); + i += 4; + } + if (defaultSampleSizePresent) { + result.defaultSampleSize = view.getUint32(i); + i += 4; + } + if (defaultSampleFlagsPresent) { + result.defaultSampleFlags = view.getUint32(i); + } + if (durationIsEmpty) { + result.durationIsEmpty = true; + } + if (!baseDataOffsetPresent && defaultBaseIsMoof) { + result.baseDataOffsetIsMoof = true; + } + return result; + }, + tkhd: function(data) { + var + view = new DataView(data.buffer, data.byteOffset, data.byteLength), + i = 4, + result = { + version: view.getUint8(0), + flags: new Uint8Array(data.subarray(1, 4)) + }; + if (result.version === 1) { + i += 4; + result.creationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes + i += 8; + result.modificationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes + i += 4; + result.trackId = view.getUint32(i); + i += 4; + i += 8; + result.duration = view.getUint32(i); // truncating top 4 bytes + } else { + result.creationTime = parseMp4Date(view.getUint32(i)); + i += 4; + result.modificationTime = parseMp4Date(view.getUint32(i)); + i += 4; + result.trackId = view.getUint32(i); + i += 4; + i += 4; + result.duration = view.getUint32(i); + } + i += 4; + i += 2 * 4; + result.layer = view.getUint16(i); + i += 2; + result.alternateGroup = view.getUint16(i); + i += 2; + // convert fixed-point, base 16 back to a number + result.volume = view.getUint8(i) + (view.getUint8(i + 1) / 8); + i += 2; + i += 2; + result.matrix = new Uint32Array(data.subarray(i, i + (9 * 4))); + i += 9 * 4; + result.width = view.getUint16(i) + (view.getUint16(i + 2) / 16); + i += 4; + result.height = view.getUint16(i) + (view.getUint16(i + 2) / 16); + return result; + }, + traf: function(data) { + return { + boxes: inspectMp4(data) + }; + }, + trak: function(data) { + return { + boxes: inspectMp4(data) + }; + }, + trex: function(data) { + var view = new DataView(data.buffer, data.byteOffset, data.byteLength); + return { + version: data[0], + flags: new Uint8Array(data.subarray(1, 4)), + trackId: view.getUint32(4), + defaultSampleDescriptionIndex: view.getUint32(8), + defaultSampleDuration: view.getUint32(12), + defaultSampleSize: view.getUint32(16), + sampleDependsOn: data[20] & 0x03, + sampleIsDependedOn: (data[21] & 0xc0) >> 6, + sampleHasRedundancy: (data[21] & 0x30) >> 4, + samplePaddingValue: (data[21] & 0x0e) >> 1, + sampleIsDifferenceSample: !!(data[21] & 0x01), + sampleDegradationPriority: view.getUint16(22) + }; + }, + trun: function(data) { + var + result = { + version: data[0], + flags: new Uint8Array(data.subarray(1, 4)), + samples: [] + }, + view = new DataView(data.buffer, data.byteOffset, data.byteLength), + // Flag interpretation + dataOffsetPresent = result.flags[2] & 0x01, // compare with 2nd byte of 0x1 + firstSampleFlagsPresent = result.flags[2] & 0x04, // compare with 2nd byte of 0x4 + sampleDurationPresent = result.flags[1] & 0x01, // compare with 2nd byte of 0x100 + sampleSizePresent = result.flags[1] & 0x02, // compare with 2nd byte of 0x200 + sampleFlagsPresent = result.flags[1] & 0x04, // compare with 2nd byte of 0x400 + sampleCompositionTimeOffsetPresent = result.flags[1] & 0x08, // compare with 2nd byte of 0x800 + sampleCount = view.getUint32(4), + offset = 8, + sample; + + if (dataOffsetPresent) { + // 32 bit signed integer + result.dataOffset = view.getInt32(offset); + offset += 4; + } + + // Overrides the flags for the first sample only. The order of + // optional values will be: duration, size, compositionTimeOffset + if (firstSampleFlagsPresent && sampleCount) { + sample = { + flags: parseSampleFlags(data.subarray(offset, offset + 4)) + }; + offset += 4; + if (sampleDurationPresent) { + sample.duration = view.getUint32(offset); + offset += 4; + } + if (sampleSizePresent) { + sample.size = view.getUint32(offset); + offset += 4; + } + if (sampleCompositionTimeOffsetPresent) { + // Note: this should be a signed int if version is 1 + sample.compositionTimeOffset = view.getUint32(offset); + offset += 4; + } + result.samples.push(sample); + sampleCount--; + } + + while (sampleCount--) { + sample = {}; + if (sampleDurationPresent) { + sample.duration = view.getUint32(offset); + offset += 4; + } + if (sampleSizePresent) { + sample.size = view.getUint32(offset); + offset += 4; + } + if (sampleFlagsPresent) { + sample.flags = parseSampleFlags(data.subarray(offset, offset + 4)); + offset += 4; + } + if (sampleCompositionTimeOffsetPresent) { + // Note: this should be a signed int if version is 1 + sample.compositionTimeOffset = view.getUint32(offset); + offset += 4; + } + result.samples.push(sample); + } + return result; + }, + 'url ': function(data) { + return { + version: data[0], + flags: new Uint8Array(data.subarray(1, 4)) + }; + }, + vmhd: function(data) { + var view = new DataView(data.buffer, data.byteOffset, data.byteLength); + return { + version: data[0], + flags: new Uint8Array(data.subarray(1, 4)), + graphicsmode: view.getUint16(4), + opcolor: new Uint16Array([view.getUint16(6), + view.getUint16(8), + view.getUint16(10)]) + }; + } + }; + + + /** + * Return a javascript array of box objects parsed from an ISO base + * media file. + * @param data {Uint8Array} the binary data of the media to be inspected + * @return {array} a javascript array of potentially nested box objects + */ + inspectMp4 = function(data) { + var + i = 0, + result = [], + view, + size, + type, + end, + box; + + // Convert data from Uint8Array to ArrayBuffer, to follow Dataview API + var ab = new ArrayBuffer(data.length); + var v = new Uint8Array(ab); + for (var z = 0; z < data.length; ++z) { + v[z] = data[z]; + } + view = new DataView(ab); + + while (i < data.byteLength) { + // parse box data + size = view.getUint32(i); + type = parseType(data.subarray(i + 4, i + 8)); + end = size > 1 ? i + size : data.byteLength; + + // parse type-specific data + box = (parse$2[type] || function(data) { + return { + data: data + }; + })(data.subarray(i + 8, end)); + box.size = size; + box.type = type; + + // store this box and move to the next + result.push(box); + i = end; + } + return result; + }; + + /** + * Returns a textual representation of the javascript represtentation + * of an MP4 file. You can use it as an alternative to + * JSON.stringify() to compare inspected MP4s. + * @param inspectedMp4 {array} the parsed array of boxes in an MP4 + * file + * @param depth {number} (optional) the number of ancestor boxes of + * the elements of inspectedMp4. Assumed to be zero if unspecified. + * @return {string} a text representation of the parsed MP4 + */ + textifyMp4 = function(inspectedMp4, depth) { + var indent; + depth = depth || 0; + indent = new Array(depth * 2 + 1).join(' '); + + // iterate over all the boxes + return inspectedMp4.map(function(box, index) { + + // list the box type first at the current indentation level + return indent + box.type + '\n' + + + // the type is already included and handle child boxes separately + Object.keys(box).filter(function(key) { + return key !== 'type' && key !== 'boxes'; + + // output all the box properties + }).map(function(key) { + var prefix = indent + ' ' + key + ': ', + value = box[key]; + + // print out raw bytes as hexademical + if (value instanceof Uint8Array || value instanceof Uint32Array) { + var bytes = Array.prototype.slice.call(new Uint8Array(value.buffer, value.byteOffset, value.byteLength)) + .map(function(byte) { + return ' ' + ('00' + byte.toString(16)).slice(-2); + }).join('').match(/.{1,24}/g); + if (!bytes) { + return prefix + '<>'; + } + if (bytes.length === 1) { + return prefix + '<' + bytes.join('').slice(1) + '>'; + } + return prefix + '<\n' + bytes.map(function(line) { + return indent + ' ' + line; + }).join('\n') + '\n' + indent + ' >'; + } + + // stringify generic objects + return prefix + + JSON.stringify(value, null, 2) + .split('\n').map(function(line, index) { + if (index === 0) { + return line; + } + return indent + ' ' + line; + }).join('\n'); + }).join('\n') + + + // recursively textify the child boxes + (box.boxes ? '\n' + textifyMp4(box.boxes, depth + 1) : ''); + }).join('\n'); + }; + + var mp4Inspector = { + inspect: inspectMp4, + textify: textifyMp4, + parseType: parseType, + findBox: findBox, + parseTraf: parse$2.traf, + parseTfdt: parse$2.tfdt, + parseHdlr: parse$2.hdlr, + parseTfhd: parse$2.tfhd, + parseTrun: parse$2.trun, + parseSidx: parse$2.sidx + }; + + var toUnsigned$2 = bin.toUnsigned; + var toHexString$1 = bin.toHexString; + + var timescale, startTime, compositionStartTime, getVideoTrackIds, getTracks; + + /** + * Parses an MP4 initialization segment and extracts the timescale + * values for any declared tracks. Timescale values indicate the + * number of clock ticks per second to assume for time-based values + * elsewhere in the MP4. + * + * To determine the start time of an MP4, you need two pieces of + * information: the timescale unit and the earliest base media decode + * time. Multiple timescales can be specified within an MP4 but the + * base media decode time is always expressed in the timescale from + * the media header box for the track: + * ``` + * moov > trak > mdia > mdhd.timescale + * ``` + * @param init {Uint8Array} the bytes of the init segment + * @return {object} a hash of track ids to timescale values or null if + * the init segment is malformed. + */ + timescale = function(init) { + var + result = {}, + traks = mp4Inspector.findBox(init, ['moov', 'trak']); + + // mdhd timescale + return traks.reduce(function(result, trak) { + var tkhd, version, index, id, mdhd; + + tkhd = mp4Inspector.findBox(trak, ['tkhd'])[0]; + if (!tkhd) { + return null; + } + version = tkhd[0]; + index = version === 0 ? 12 : 20; + id = toUnsigned$2(tkhd[index] << 24 | + tkhd[index + 1] << 16 | + tkhd[index + 2] << 8 | + tkhd[index + 3]); + + mdhd = mp4Inspector.findBox(trak, ['mdia', 'mdhd'])[0]; + if (!mdhd) { + return null; + } + version = mdhd[0]; + index = version === 0 ? 12 : 20; + result[id] = toUnsigned$2(mdhd[index] << 24 | + mdhd[index + 1] << 16 | + mdhd[index + 2] << 8 | + mdhd[index + 3]); + return result; + }, result); + }; + + /** + * Determine the base media decode start time, in seconds, for an MP4 + * fragment. If multiple fragments are specified, the earliest time is + * returned. + * + * The base media decode time can be parsed from track fragment + * metadata: + * ``` + * moof > traf > tfdt.baseMediaDecodeTime + * ``` + * It requires the timescale value from the mdhd to interpret. + * + * @param timescale {object} a hash of track ids to timescale values. + * @return {number} the earliest base media decode start time for the + * fragment, in seconds + */ + startTime = function(timescale, fragment) { + var trafs, baseTimes, result; + + // we need info from two childrend of each track fragment box + trafs = mp4Inspector.findBox(fragment, ['moof', 'traf']); + + // determine the start times for each track + baseTimes = [].concat.apply([], trafs.map(function(traf) { + return mp4Inspector.findBox(traf, ['tfhd']).map(function(tfhd) { + var id, scale, baseTime; + + // get the track id from the tfhd + id = toUnsigned$2(tfhd[4] << 24 | + tfhd[5] << 16 | + tfhd[6] << 8 | + tfhd[7]); + // assume a 90kHz clock if no timescale was specified + scale = timescale[id] || 90e3; + + // get the base media decode time from the tfdt + baseTime = mp4Inspector.findBox(traf, ['tfdt']).map(function(tfdt) { + var version, result; + + version = tfdt[0]; + result = toUnsigned$2(tfdt[4] << 24 | + tfdt[5] << 16 | + tfdt[6] << 8 | + tfdt[7]); + if (version === 1) { + result *= Math.pow(2, 32); + result += toUnsigned$2(tfdt[8] << 24 | + tfdt[9] << 16 | + tfdt[10] << 8 | + tfdt[11]); + } + return result; + })[0]; + baseTime = baseTime || Infinity; + + // convert base time to seconds + return baseTime / scale; + }); + })); + + // return the minimum + result = Math.min.apply(null, baseTimes); + return isFinite(result) ? result : 0; + }; + + /** + * Determine the composition start, in seconds, for an MP4 + * fragment. + * + * The composition start time of a fragment can be calculated using the base + * media decode time, composition time offset, and timescale, as follows: + * + * compositionStartTime = (baseMediaDecodeTime + compositionTimeOffset) / timescale + * + * All of the aforementioned information is contained within a media fragment's + * `traf` box, except for timescale info, which comes from the initialization + * segment, so a track id (also contained within a `traf`) is also necessary to + * associate it with a timescale + * + * + * @param timescales {object} - a hash of track ids to timescale values. + * @param fragment {Unit8Array} - the bytes of a media segment + * @return {number} the composition start time for the fragment, in seconds + **/ + compositionStartTime = function(timescales, fragment) { + var trafBoxes = mp4Inspector.findBox(fragment, ['moof', 'traf']); + var baseMediaDecodeTime = 0; + var compositionTimeOffset = 0; + var trackId; + + if (trafBoxes && trafBoxes.length) { + // The spec states that track run samples contained within a `traf` box are contiguous, but + // it does not explicitly state whether the `traf` boxes themselves are contiguous. + // We will assume that they are, so we only need the first to calculate start time. + var parsedTraf = mp4Inspector.parseTraf(trafBoxes[0]); + + for (var i = 0; i < parsedTraf.boxes.length; i++) { + if (parsedTraf.boxes[i].type === 'tfhd') { + trackId = parsedTraf.boxes[i].trackId; + } else if (parsedTraf.boxes[i].type === 'tfdt') { + baseMediaDecodeTime = parsedTraf.boxes[i].baseMediaDecodeTime; + } else if (parsedTraf.boxes[i].type === 'trun' && parsedTraf.boxes[i].samples.length) { + compositionTimeOffset = parsedTraf.boxes[i].samples[0].compositionTimeOffset || 0; + } + } + } + + // Get timescale for this specific track. Assume a 90kHz clock if no timescale was + // specified. + var timescale = timescales[trackId] || 90e3; + + // return the composition start time, in seconds + return (baseMediaDecodeTime + compositionTimeOffset) / timescale; + }; + + /** + * Find the trackIds of the video tracks in this source. + * Found by parsing the Handler Reference and Track Header Boxes: + * moov > trak > mdia > hdlr + * moov > trak > tkhd + * + * @param {Uint8Array} init - The bytes of the init segment for this source + * @return {Number[]} A list of trackIds + * + * @see ISO-BMFF-12/2015, Section 8.4.3 + **/ + getVideoTrackIds = function(init) { + var traks = mp4Inspector.findBox(init, ['moov', 'trak']); + var videoTrackIds = []; + + traks.forEach(function(trak) { + var hdlrs = mp4Inspector.findBox(trak, ['mdia', 'hdlr']); + var tkhds = mp4Inspector.findBox(trak, ['tkhd']); + + hdlrs.forEach(function(hdlr, index) { + var handlerType = mp4Inspector.parseType(hdlr.subarray(8, 12)); + var tkhd = tkhds[index]; + var view; + var version; + var trackId; + + if (handlerType === 'vide') { + view = new DataView(tkhd.buffer, tkhd.byteOffset, tkhd.byteLength); + version = view.getUint8(0); + trackId = (version === 0) ? view.getUint32(12) : view.getUint32(20); + + videoTrackIds.push(trackId); + } + }); + }); + + return videoTrackIds; + }; + + /** + * Get all the video, audio, and hint tracks from a non fragmented + * mp4 segment + */ + getTracks = function(init) { + var traks = mp4Inspector.findBox(init, ['moov', 'trak']); + var tracks = []; + + traks.forEach(function(trak) { + var track = {}; + var tkhd = mp4Inspector.findBox(trak, ['tkhd'])[0]; + var view, version; + + // id + if (tkhd) { + view = new DataView(tkhd.buffer, tkhd.byteOffset, tkhd.byteLength); + version = view.getUint8(0); + + track.id = (version === 0) ? view.getUint32(12) : view.getUint32(20); + } + + var hdlr = mp4Inspector.findBox(trak, ['mdia', 'hdlr'])[0]; + + // type + if (hdlr) { + var type = mp4Inspector.parseType(hdlr.subarray(8, 12)); + + if (type === 'vide') { + track.type = 'video'; + } else if (type === 'soun') { + track.type = 'audio'; + } else { + track.type = type; + } + } + + + // codec + var stsd = mp4Inspector.findBox(trak, ['mdia', 'minf', 'stbl', 'stsd'])[0]; + + if (stsd) { + var sampleDescriptions = stsd.subarray(8); + // gives the codec type string + track.codec = mp4Inspector.parseType(sampleDescriptions.subarray(4, 8)); + + var codecBox = mp4Inspector.findBox(sampleDescriptions, [track.codec])[0]; + var codecConfig, codecConfigType; + + if (codecBox) { + // https://tools.ietf.org/html/rfc6381#section-3.3 + if ((/^[a-z]vc[1-9]$/i).test(track.codec)) { + // we don't need anything but the "config" parameter of the + // avc1 codecBox + codecConfig = codecBox.subarray(78); + codecConfigType = mp4Inspector.parseType(codecConfig.subarray(4, 8)); + + if (codecConfigType === 'avcC' && codecConfig.length > 11) { + track.codec += '.'; + + // left padded with zeroes for single digit hex + // profile idc + track.codec += toHexString$1(codecConfig[9]); + // the byte containing the constraint_set flags + track.codec += toHexString$1(codecConfig[10]); + // level idc + track.codec += toHexString$1(codecConfig[11]); + } else { + // TODO: show a warning that we couldn't parse the codec + // and are using the default + track.codec = 'avc1.4d400d'; + } + } else if ((/^mp4[a,v]$/i).test(track.codec)) { + // we do not need anything but the streamDescriptor of the mp4a codecBox + codecConfig = codecBox.subarray(28); + codecConfigType = mp4Inspector.parseType(codecConfig.subarray(4, 8)); + + if (codecConfigType === 'esds' && codecConfig.length > 20 && codecConfig[19] !== 0) { + track.codec += '.' + toHexString$1(codecConfig[19]); + // this value is only a single digit + track.codec += '.' + toHexString$1((codecConfig[20] >>> 2) & 0x3f).replace(/^0/, ''); + } else { + // TODO: show a warning that we couldn't parse the codec + // and are using the default + track.codec = 'mp4a.40.2'; + } + } + } + } + + var mdhd = mp4Inspector.findBox(trak, ['mdia', 'mdhd'])[0]; + + if (mdhd && tkhd) { + var index = version === 0 ? 12 : 20; + + track.timescale = toUnsigned$2(mdhd[index] << 24 | + mdhd[index + 1] << 16 | + mdhd[index + 2] << 8 | + mdhd[index + 3]); + } + + tracks.push(track); + }); + + return tracks; + }; + + var probe = { + // export mp4 inspector's findBox and parseType for backwards compatibility + findBox: mp4Inspector.findBox, + parseType: mp4Inspector.parseType, + timescale: timescale, + startTime: startTime, + compositionStartTime: compositionStartTime, + videoTrackIds: getVideoTrackIds, + tracks: getTracks + }; + + /** + * mux.js + * + * Copyright (c) Brightcove + * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE + * + * Reads in-band caption information from a video elementary + * stream. Captions must follow the CEA-708 standard for injection + * into an MPEG-2 transport streams. + * @see https://en.wikipedia.org/wiki/CEA-708 + * @see https://www.gpo.gov/fdsys/pkg/CFR-2007-title47-vol1/pdf/CFR-2007-title47-vol1-sec15-119.pdf + */ + + // Supplemental enhancement information (SEI) NAL units have a + // payload type field to indicate how they are to be + // interpreted. CEAS-708 caption content is always transmitted with + // payload type 0x04. + var USER_DATA_REGISTERED_ITU_T_T35 = 4, + RBSP_TRAILING_BITS = 128; + + /** + * Parse a supplemental enhancement information (SEI) NAL unit. + * Stops parsing once a message of type ITU T T35 has been found. + * + * @param bytes {Uint8Array} the bytes of a SEI NAL unit + * @return {object} the parsed SEI payload + * @see Rec. ITU-T H.264, 7.3.2.3.1 + */ + var parseSei = function(bytes) { + var + i = 0, + result = { + payloadType: -1, + payloadSize: 0 + }, + payloadType = 0, + payloadSize = 0; + + // go through the sei_rbsp parsing each each individual sei_message + while (i < bytes.byteLength) { + // stop once we have hit the end of the sei_rbsp + if (bytes[i] === RBSP_TRAILING_BITS) { + break; + } + + // Parse payload type + while (bytes[i] === 0xFF) { + payloadType += 255; + i++; + } + payloadType += bytes[i++]; + + // Parse payload size + while (bytes[i] === 0xFF) { + payloadSize += 255; + i++; + } + payloadSize += bytes[i++]; + + // this sei_message is a 608/708 caption so save it and break + // there can only ever be one caption message in a frame's sei + if (!result.payload && payloadType === USER_DATA_REGISTERED_ITU_T_T35) { + result.payloadType = payloadType; + result.payloadSize = payloadSize; + result.payload = bytes.subarray(i, i + payloadSize); + break; + } + + // skip the payload and parse the next message + i += payloadSize; + payloadType = 0; + payloadSize = 0; + } + + return result; + }; + + // see ANSI/SCTE 128-1 (2013), section 8.1 + var parseUserData = function(sei) { + // itu_t_t35_contry_code must be 181 (United States) for + // captions + if (sei.payload[0] !== 181) { + return null; + } + + // itu_t_t35_provider_code should be 49 (ATSC) for captions + if (((sei.payload[1] << 8) | sei.payload[2]) !== 49) { + return null; + } + + // the user_identifier should be "GA94" to indicate ATSC1 data + if (String.fromCharCode(sei.payload[3], + sei.payload[4], + sei.payload[5], + sei.payload[6]) !== 'GA94') { + return null; + } + + // finally, user_data_type_code should be 0x03 for caption data + if (sei.payload[7] !== 0x03) { + return null; + } + + // return the user_data_type_structure and strip the trailing + // marker bits + return sei.payload.subarray(8, sei.payload.length - 1); + }; + + // see CEA-708-D, section 4.4 + var parseCaptionPackets = function(pts, userData) { + var results = [], i, count, offset, data; + + // if this is just filler, return immediately + if (!(userData[0] & 0x40)) { + return results; + } + + // parse out the cc_data_1 and cc_data_2 fields + count = userData[0] & 0x1f; + for (i = 0; i < count; i++) { + offset = i * 3; + data = { + type: userData[offset + 2] & 0x03, + pts: pts + }; + + // capture cc data when cc_valid is 1 + if (userData[offset + 2] & 0x04) { + data.ccData = (userData[offset + 3] << 8) | userData[offset + 4]; + results.push(data); + } + } + return results; + }; + + var discardEmulationPreventionBytes = function(data) { + var + length = data.byteLength, + emulationPreventionBytesPositions = [], + i = 1, + newLength, newData; + + // Find all `Emulation Prevention Bytes` + while (i < length - 2) { + if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) { + emulationPreventionBytesPositions.push(i + 2); + i += 2; + } else { + i++; + } + } + + // If no Emulation Prevention Bytes were found just return the original + // array + if (emulationPreventionBytesPositions.length === 0) { + return data; + } + + // Create a new array to hold the NAL unit data + newLength = length - emulationPreventionBytesPositions.length; + newData = new Uint8Array(newLength); + var sourceIndex = 0; + + for (i = 0; i < newLength; sourceIndex++, i++) { + if (sourceIndex === emulationPreventionBytesPositions[0]) { + // Skip this byte + sourceIndex++; + // Remove this position index + emulationPreventionBytesPositions.shift(); + } + newData[i] = data[sourceIndex]; + } + + return newData; + }; + + // exports + var captionPacketParser = { + parseSei: parseSei, + parseUserData: parseUserData, + parseCaptionPackets: parseCaptionPackets, + discardEmulationPreventionBytes: discardEmulationPreventionBytes, + USER_DATA_REGISTERED_ITU_T_T35: USER_DATA_REGISTERED_ITU_T_T35 + }; + + /** + * mux.js + * + * Copyright (c) Brightcove + * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE + * + * A lightweight readable stream implemention that handles event dispatching. + * Objects that inherit from streams should call init in their constructors. + */ + + var Stream$1 = function() { + this.init = function() { + var listeners = {}; + /** + * Add a listener for a specified event type. + * @param type {string} the event name + * @param listener {function} the callback to be invoked when an event of + * the specified type occurs + */ + this.on = function(type, listener) { + if (!listeners[type]) { + listeners[type] = []; + } + listeners[type] = listeners[type].concat(listener); + }; + /** + * Remove a listener for a specified event type. + * @param type {string} the event name + * @param listener {function} a function previously registered for this + * type of event through `on` + */ + this.off = function(type, listener) { + var index; + if (!listeners[type]) { + return false; + } + index = listeners[type].indexOf(listener); + listeners[type] = listeners[type].slice(); + listeners[type].splice(index, 1); + return index > -1; + }; + /** + * Trigger an event of the specified type on this stream. Any additional + * arguments to this function are passed as parameters to event listeners. + * @param type {string} the event name + */ + this.trigger = function(type) { + var callbacks, i, length, args; + callbacks = listeners[type]; + if (!callbacks) { + return; + } + // Slicing the arguments on every invocation of this method + // can add a significant amount of overhead. Avoid the + // intermediate object creation for the common case of a + // single callback argument + if (arguments.length === 2) { + length = callbacks.length; + for (i = 0; i < length; ++i) { + callbacks[i].call(this, arguments[1]); + } + } else { + args = []; + i = arguments.length; + for (i = 1; i < arguments.length; ++i) { + args.push(arguments[i]); + } + length = callbacks.length; + for (i = 0; i < length; ++i) { + callbacks[i].apply(this, args); + } + } + }; + /** + * Destroys the stream and cleans up. + */ + this.dispose = function() { + listeners = {}; + }; + }; + }; + + /** + * Forwards all `data` events on this stream to the destination stream. The + * destination stream should provide a method `push` to receive the data + * events as they arrive. + * @param destination {stream} the stream that will receive all `data` events + * @param autoFlush {boolean} if false, we will not call `flush` on the destination + * when the current stream emits a 'done' event + * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options + */ + Stream$1.prototype.pipe = function(destination) { + this.on('data', function(data) { + destination.push(data); + }); + + this.on('done', function(flushSource) { + destination.flush(flushSource); + }); + + this.on('partialdone', function(flushSource) { + destination.partialFlush(flushSource); + }); + + this.on('endedtimeline', function(flushSource) { + destination.endTimeline(flushSource); + }); + + this.on('reset', function(flushSource) { + destination.reset(flushSource); + }); + + return destination; + }; + + // Default stream functions that are expected to be overridden to perform + // actual work. These are provided by the prototype as a sort of no-op + // implementation so that we don't have to check for their existence in the + // `pipe` function above. + Stream$1.prototype.push = function(data) { + this.trigger('data', data); + }; + + Stream$1.prototype.flush = function(flushSource) { + this.trigger('done', flushSource); + }; + + Stream$1.prototype.partialFlush = function(flushSource) { + this.trigger('partialdone', flushSource); + }; + + Stream$1.prototype.endTimeline = function(flushSource) { + this.trigger('endedtimeline', flushSource); + }; + + Stream$1.prototype.reset = function(flushSource) { + this.trigger('reset', flushSource); + }; + + var stream = Stream$1; + + // ----------------- + // Link To Transport + // ----------------- + + + + + var CaptionStream = function() { + + CaptionStream.prototype.init.call(this); + + this.captionPackets_ = []; + + this.ccStreams_ = [ + new Cea608Stream(0, 0), // eslint-disable-line no-use-before-define + new Cea608Stream(0, 1), // eslint-disable-line no-use-before-define + new Cea608Stream(1, 0), // eslint-disable-line no-use-before-define + new Cea608Stream(1, 1) // eslint-disable-line no-use-before-define + ]; + + this.reset(); + + // forward data and done events from CCs to this CaptionStream + this.ccStreams_.forEach(function(cc) { + cc.on('data', this.trigger.bind(this, 'data')); + cc.on('partialdone', this.trigger.bind(this, 'partialdone')); + cc.on('done', this.trigger.bind(this, 'done')); + }, this); + + }; + + CaptionStream.prototype = new stream(); + CaptionStream.prototype.push = function(event) { + var sei, userData, newCaptionPackets; + + // only examine SEI NALs + if (event.nalUnitType !== 'sei_rbsp') { + return; + } + + // parse the sei + sei = captionPacketParser.parseSei(event.escapedRBSP); + + // ignore everything but user_data_registered_itu_t_t35 + if (sei.payloadType !== captionPacketParser.USER_DATA_REGISTERED_ITU_T_T35) { + return; + } + + // parse out the user data payload + userData = captionPacketParser.parseUserData(sei); + + // ignore unrecognized userData + if (!userData) { + return; + } + + // Sometimes, the same segment # will be downloaded twice. To stop the + // caption data from being processed twice, we track the latest dts we've + // received and ignore everything with a dts before that. However, since + // data for a specific dts can be split across packets on either side of + // a segment boundary, we need to make sure we *don't* ignore the packets + // from the *next* segment that have dts === this.latestDts_. By constantly + // tracking the number of packets received with dts === this.latestDts_, we + // know how many should be ignored once we start receiving duplicates. + if (event.dts < this.latestDts_) { + // We've started getting older data, so set the flag. + this.ignoreNextEqualDts_ = true; + return; + } else if ((event.dts === this.latestDts_) && (this.ignoreNextEqualDts_)) { + this.numSameDts_--; + if (!this.numSameDts_) { + // We've received the last duplicate packet, time to start processing again + this.ignoreNextEqualDts_ = false; + } + return; + } + + // parse out CC data packets and save them for later + newCaptionPackets = captionPacketParser.parseCaptionPackets(event.pts, userData); + this.captionPackets_ = this.captionPackets_.concat(newCaptionPackets); + if (this.latestDts_ !== event.dts) { + this.numSameDts_ = 0; + } + this.numSameDts_++; + this.latestDts_ = event.dts; + }; + + CaptionStream.prototype.flushCCStreams = function(flushType) { + this.ccStreams_.forEach(function(cc) { + return flushType === 'flush' ? cc.flush() : cc.partialFlush(); + }, this); + }; + + CaptionStream.prototype.flushStream = function(flushType) { + // make sure we actually parsed captions before proceeding + if (!this.captionPackets_.length) { + this.flushCCStreams(flushType); + return; + } + + // In Chrome, the Array#sort function is not stable so add a + // presortIndex that we can use to ensure we get a stable-sort + this.captionPackets_.forEach(function(elem, idx) { + elem.presortIndex = idx; + }); + + // sort caption byte-pairs based on their PTS values + this.captionPackets_.sort(function(a, b) { + if (a.pts === b.pts) { + return a.presortIndex - b.presortIndex; + } + return a.pts - b.pts; + }); + + this.captionPackets_.forEach(function(packet) { + if (packet.type < 2) { + // Dispatch packet to the right Cea608Stream + this.dispatchCea608Packet(packet); + } + // this is where an 'else' would go for a dispatching packets + // to a theoretical Cea708Stream that handles SERVICEn data + }, this); + + this.captionPackets_.length = 0; + this.flushCCStreams(flushType); + }; + + CaptionStream.prototype.flush = function() { + return this.flushStream('flush'); + }; + + // Only called if handling partial data + CaptionStream.prototype.partialFlush = function() { + return this.flushStream('partialFlush'); + }; + + CaptionStream.prototype.reset = function() { + this.latestDts_ = null; + this.ignoreNextEqualDts_ = false; + this.numSameDts_ = 0; + this.activeCea608Channel_ = [null, null]; + this.ccStreams_.forEach(function(ccStream) { + ccStream.reset(); + }); + }; + + // From the CEA-608 spec: + /* + * When XDS sub-packets are interleaved with other services, the end of each sub-packet shall be followed + * by a control pair to change to a different service. When any of the control codes from 0x10 to 0x1F is + * used to begin a control code pair, it indicates the return to captioning or Text data. The control code pair + * and subsequent data should then be processed according to the FCC rules. It may be necessary for the + * line 21 data encoder to automatically insert a control code pair (i.e. RCL, RU2, RU3, RU4, RDC, or RTD) + * to switch to captioning or Text. + */ + // With that in mind, we ignore any data between an XDS control code and a + // subsequent closed-captioning control code. + CaptionStream.prototype.dispatchCea608Packet = function(packet) { + // NOTE: packet.type is the CEA608 field + if (this.setsTextOrXDSActive(packet)) { + this.activeCea608Channel_[packet.type] = null; + } else if (this.setsChannel1Active(packet)) { + this.activeCea608Channel_[packet.type] = 0; + } else if (this.setsChannel2Active(packet)) { + this.activeCea608Channel_[packet.type] = 1; + } + if (this.activeCea608Channel_[packet.type] === null) { + // If we haven't received anything to set the active channel, or the + // packets are Text/XDS data, discard the data; we don't want jumbled + // captions + return; + } + this.ccStreams_[(packet.type << 1) + this.activeCea608Channel_[packet.type]].push(packet); + }; + + CaptionStream.prototype.setsChannel1Active = function(packet) { + return ((packet.ccData & 0x7800) === 0x1000); + }; + CaptionStream.prototype.setsChannel2Active = function(packet) { + return ((packet.ccData & 0x7800) === 0x1800); + }; + CaptionStream.prototype.setsTextOrXDSActive = function(packet) { + return ((packet.ccData & 0x7100) === 0x0100) || + ((packet.ccData & 0x78fe) === 0x102a) || + ((packet.ccData & 0x78fe) === 0x182a); + }; + + // ---------------------- + // Session to Application + // ---------------------- + + // This hash maps non-ASCII, special, and extended character codes to their + // proper Unicode equivalent. The first keys that are only a single byte + // are the non-standard ASCII characters, which simply map the CEA608 byte + // to the standard ASCII/Unicode. The two-byte keys that follow are the CEA608 + // character codes, but have their MSB bitmasked with 0x03 so that a lookup + // can be performed regardless of the field and data channel on which the + // character code was received. + var CHARACTER_TRANSLATION = { + 0x2a: 0xe1, // á + 0x5c: 0xe9, // é + 0x5e: 0xed, // í + 0x5f: 0xf3, // ó + 0x60: 0xfa, // ú + 0x7b: 0xe7, // ç + 0x7c: 0xf7, // ÷ + 0x7d: 0xd1, // Ñ + 0x7e: 0xf1, // ñ + 0x7f: 0x2588, // █ + 0x0130: 0xae, // ® + 0x0131: 0xb0, // ° + 0x0132: 0xbd, // ½ + 0x0133: 0xbf, // ¿ + 0x0134: 0x2122, // ™ + 0x0135: 0xa2, // ¢ + 0x0136: 0xa3, // £ + 0x0137: 0x266a, // ♪ + 0x0138: 0xe0, // à + 0x0139: 0xa0, // + 0x013a: 0xe8, // è + 0x013b: 0xe2, // â + 0x013c: 0xea, // ê + 0x013d: 0xee, // î + 0x013e: 0xf4, // ô + 0x013f: 0xfb, // û + 0x0220: 0xc1, // Á + 0x0221: 0xc9, // É + 0x0222: 0xd3, // Ó + 0x0223: 0xda, // Ú + 0x0224: 0xdc, // Ü + 0x0225: 0xfc, // ü + 0x0226: 0x2018, // ‘ + 0x0227: 0xa1, // ¡ + 0x0228: 0x2a, // * + 0x0229: 0x27, // ' + 0x022a: 0x2014, // — + 0x022b: 0xa9, // © + 0x022c: 0x2120, // ℠ + 0x022d: 0x2022, // • + 0x022e: 0x201c, // “ + 0x022f: 0x201d, // ” + 0x0230: 0xc0, // À + 0x0231: 0xc2, // Â + 0x0232: 0xc7, // Ç + 0x0233: 0xc8, // È + 0x0234: 0xca, // Ê + 0x0235: 0xcb, // Ë + 0x0236: 0xeb, // ë + 0x0237: 0xce, // Î + 0x0238: 0xcf, // Ï + 0x0239: 0xef, // ï + 0x023a: 0xd4, // Ô + 0x023b: 0xd9, // Ù + 0x023c: 0xf9, // ù + 0x023d: 0xdb, // Û + 0x023e: 0xab, // « + 0x023f: 0xbb, // » + 0x0320: 0xc3, // Ã + 0x0321: 0xe3, // ã + 0x0322: 0xcd, // Í + 0x0323: 0xcc, // Ì + 0x0324: 0xec, // ì + 0x0325: 0xd2, // Ò + 0x0326: 0xf2, // ò + 0x0327: 0xd5, // Õ + 0x0328: 0xf5, // õ + 0x0329: 0x7b, // { + 0x032a: 0x7d, // } + 0x032b: 0x5c, // \ + 0x032c: 0x5e, // ^ + 0x032d: 0x5f, // _ + 0x032e: 0x7c, // | + 0x032f: 0x7e, // ~ + 0x0330: 0xc4, // Ä + 0x0331: 0xe4, // ä + 0x0332: 0xd6, // Ö + 0x0333: 0xf6, // ö + 0x0334: 0xdf, // ß + 0x0335: 0xa5, // ¥ + 0x0336: 0xa4, // ¤ + 0x0337: 0x2502, // │ + 0x0338: 0xc5, // Å + 0x0339: 0xe5, // å + 0x033a: 0xd8, // Ø + 0x033b: 0xf8, // ø + 0x033c: 0x250c, // ┌ + 0x033d: 0x2510, // ┐ + 0x033e: 0x2514, // └ + 0x033f: 0x2518 // ┘ + }; + + var getCharFromCode = function(code) { + if (code === null) { + return ''; + } + code = CHARACTER_TRANSLATION[code] || code; + return String.fromCharCode(code); + }; + + // the index of the last row in a CEA-608 display buffer + var BOTTOM_ROW = 14; + + // This array is used for mapping PACs -> row #, since there's no way of + // getting it through bit logic. + var ROWS = [0x1100, 0x1120, 0x1200, 0x1220, 0x1500, 0x1520, 0x1600, 0x1620, + 0x1700, 0x1720, 0x1000, 0x1300, 0x1320, 0x1400, 0x1420]; + + // CEA-608 captions are rendered onto a 34x15 matrix of character + // cells. The "bottom" row is the last element in the outer array. + var createDisplayBuffer = function() { + var result = [], i = BOTTOM_ROW + 1; + while (i--) { + result.push(''); + } + return result; + }; + + var Cea608Stream = function(field, dataChannel) { + Cea608Stream.prototype.init.call(this); + + this.field_ = field || 0; + this.dataChannel_ = dataChannel || 0; + + this.name_ = 'CC' + (((this.field_ << 1) | this.dataChannel_) + 1); + + this.setConstants(); + this.reset(); + + this.push = function(packet) { + var data, swap, char0, char1, text; + // remove the parity bits + data = packet.ccData & 0x7f7f; + + // ignore duplicate control codes; the spec demands they're sent twice + if (data === this.lastControlCode_) { + this.lastControlCode_ = null; + return; + } + + // Store control codes + if ((data & 0xf000) === 0x1000) { + this.lastControlCode_ = data; + } else if (data !== this.PADDING_) { + this.lastControlCode_ = null; + } + + char0 = data >>> 8; + char1 = data & 0xff; + + if (data === this.PADDING_) { + return; + + } else if (data === this.RESUME_CAPTION_LOADING_) { + this.mode_ = 'popOn'; + + } else if (data === this.END_OF_CAPTION_) { + // If an EOC is received while in paint-on mode, the displayed caption + // text should be swapped to non-displayed memory as if it was a pop-on + // caption. Because of that, we should explicitly switch back to pop-on + // mode + this.mode_ = 'popOn'; + this.clearFormatting(packet.pts); + // if a caption was being displayed, it's gone now + this.flushDisplayed(packet.pts); + + // flip memory + swap = this.displayed_; + this.displayed_ = this.nonDisplayed_; + this.nonDisplayed_ = swap; + + // start measuring the time to display the caption + this.startPts_ = packet.pts; + + } else if (data === this.ROLL_UP_2_ROWS_) { + this.rollUpRows_ = 2; + this.setRollUp(packet.pts); + } else if (data === this.ROLL_UP_3_ROWS_) { + this.rollUpRows_ = 3; + this.setRollUp(packet.pts); + } else if (data === this.ROLL_UP_4_ROWS_) { + this.rollUpRows_ = 4; + this.setRollUp(packet.pts); + } else if (data === this.CARRIAGE_RETURN_) { + this.clearFormatting(packet.pts); + this.flushDisplayed(packet.pts); + this.shiftRowsUp_(); + this.startPts_ = packet.pts; + + } else if (data === this.BACKSPACE_) { + if (this.mode_ === 'popOn') { + this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1); + } else { + this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1); + } + } else if (data === this.ERASE_DISPLAYED_MEMORY_) { + this.flushDisplayed(packet.pts); + this.displayed_ = createDisplayBuffer(); + } else if (data === this.ERASE_NON_DISPLAYED_MEMORY_) { + this.nonDisplayed_ = createDisplayBuffer(); + + } else if (data === this.RESUME_DIRECT_CAPTIONING_) { + if (this.mode_ !== 'paintOn') { + // NOTE: This should be removed when proper caption positioning is + // implemented + this.flushDisplayed(packet.pts); + this.displayed_ = createDisplayBuffer(); + } + this.mode_ = 'paintOn'; + this.startPts_ = packet.pts; + + // Append special characters to caption text + } else if (this.isSpecialCharacter(char0, char1)) { + // Bitmask char0 so that we can apply character transformations + // regardless of field and data channel. + // Then byte-shift to the left and OR with char1 so we can pass the + // entire character code to `getCharFromCode`. + char0 = (char0 & 0x03) << 8; + text = getCharFromCode(char0 | char1); + this[this.mode_](packet.pts, text); + this.column_++; + + // Append extended characters to caption text + } else if (this.isExtCharacter(char0, char1)) { + // Extended characters always follow their "non-extended" equivalents. + // IE if a "è" is desired, you'll always receive "eè"; non-compliant + // decoders are supposed to drop the "è", while compliant decoders + // backspace the "e" and insert "è". + + // Delete the previous character + if (this.mode_ === 'popOn') { + this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1); + } else { + this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1); + } + + // Bitmask char0 so that we can apply character transformations + // regardless of field and data channel. + // Then byte-shift to the left and OR with char1 so we can pass the + // entire character code to `getCharFromCode`. + char0 = (char0 & 0x03) << 8; + text = getCharFromCode(char0 | char1); + this[this.mode_](packet.pts, text); + this.column_++; + + // Process mid-row codes + } else if (this.isMidRowCode(char0, char1)) { + // Attributes are not additive, so clear all formatting + this.clearFormatting(packet.pts); + + // According to the standard, mid-row codes + // should be replaced with spaces, so add one now + this[this.mode_](packet.pts, ' '); + this.column_++; + + if ((char1 & 0xe) === 0xe) { + this.addFormatting(packet.pts, ['i']); + } + + if ((char1 & 0x1) === 0x1) { + this.addFormatting(packet.pts, ['u']); + } + + // Detect offset control codes and adjust cursor + } else if (this.isOffsetControlCode(char0, char1)) { + // Cursor position is set by indent PAC (see below) in 4-column + // increments, with an additional offset code of 1-3 to reach any + // of the 32 columns specified by CEA-608. So all we need to do + // here is increment the column cursor by the given offset. + this.column_ += (char1 & 0x03); + + // Detect PACs (Preamble Address Codes) + } else if (this.isPAC(char0, char1)) { + + // There's no logic for PAC -> row mapping, so we have to just + // find the row code in an array and use its index :( + var row = ROWS.indexOf(data & 0x1f20); + + // Configure the caption window if we're in roll-up mode + if (this.mode_ === 'rollUp') { + // This implies that the base row is incorrectly set. + // As per the recommendation in CEA-608(Base Row Implementation), defer to the number + // of roll-up rows set. + if (row - this.rollUpRows_ + 1 < 0) { + row = this.rollUpRows_ - 1; + } + + this.setRollUp(packet.pts, row); + } + + if (row !== this.row_) { + // formatting is only persistent for current row + this.clearFormatting(packet.pts); + this.row_ = row; + } + // All PACs can apply underline, so detect and apply + // (All odd-numbered second bytes set underline) + if ((char1 & 0x1) && (this.formatting_.indexOf('u') === -1)) { + this.addFormatting(packet.pts, ['u']); + } + + if ((data & 0x10) === 0x10) { + // We've got an indent level code. Each successive even number + // increments the column cursor by 4, so we can get the desired + // column position by bit-shifting to the right (to get n/2) + // and multiplying by 4. + this.column_ = ((data & 0xe) >> 1) * 4; + } + + if (this.isColorPAC(char1)) { + // it's a color code, though we only support white, which + // can be either normal or italicized. white italics can be + // either 0x4e or 0x6e depending on the row, so we just + // bitwise-and with 0xe to see if italics should be turned on + if ((char1 & 0xe) === 0xe) { + this.addFormatting(packet.pts, ['i']); + } + } + + // We have a normal character in char0, and possibly one in char1 + } else if (this.isNormalChar(char0)) { + if (char1 === 0x00) { + char1 = null; + } + text = getCharFromCode(char0); + text += getCharFromCode(char1); + this[this.mode_](packet.pts, text); + this.column_ += text.length; + + } // finish data processing + + }; + }; + Cea608Stream.prototype = new stream(); + // Trigger a cue point that captures the current state of the + // display buffer + Cea608Stream.prototype.flushDisplayed = function(pts) { + var content = this.displayed_ + // remove spaces from the start and end of the string + .map(function(row) { + try { + return row.trim(); + } catch (e) { + // Ordinarily, this shouldn't happen. However, caption + // parsing errors should not throw exceptions and + // break playback. + // eslint-disable-next-line no-console + console.error('Skipping malformed caption.'); + return ''; + } + }) + // combine all text rows to display in one cue + .join('\n') + // and remove blank rows from the start and end, but not the middle + .replace(/^\n+|\n+$/g, ''); + + if (content.length) { + this.trigger('data', { + startPts: this.startPts_, + endPts: pts, + text: content, + stream: this.name_ + }); + } + }; + + /** + * Zero out the data, used for startup and on seek + */ + Cea608Stream.prototype.reset = function() { + this.mode_ = 'popOn'; + // When in roll-up mode, the index of the last row that will + // actually display captions. If a caption is shifted to a row + // with a lower index than this, it is cleared from the display + // buffer + this.topRow_ = 0; + this.startPts_ = 0; + this.displayed_ = createDisplayBuffer(); + this.nonDisplayed_ = createDisplayBuffer(); + this.lastControlCode_ = null; + + // Track row and column for proper line-breaking and spacing + this.column_ = 0; + this.row_ = BOTTOM_ROW; + this.rollUpRows_ = 2; + + // This variable holds currently-applied formatting + this.formatting_ = []; + }; + + /** + * Sets up control code and related constants for this instance + */ + Cea608Stream.prototype.setConstants = function() { + // The following attributes have these uses: + // ext_ : char0 for mid-row codes, and the base for extended + // chars (ext_+0, ext_+1, and ext_+2 are char0s for + // extended codes) + // control_: char0 for control codes, except byte-shifted to the + // left so that we can do this.control_ | CONTROL_CODE + // offset_: char0 for tab offset codes + // + // It's also worth noting that control codes, and _only_ control codes, + // differ between field 1 and field2. Field 2 control codes are always + // their field 1 value plus 1. That's why there's the "| field" on the + // control value. + if (this.dataChannel_ === 0) { + this.BASE_ = 0x10; + this.EXT_ = 0x11; + this.CONTROL_ = (0x14 | this.field_) << 8; + this.OFFSET_ = 0x17; + } else if (this.dataChannel_ === 1) { + this.BASE_ = 0x18; + this.EXT_ = 0x19; + this.CONTROL_ = (0x1c | this.field_) << 8; + this.OFFSET_ = 0x1f; + } + + // Constants for the LSByte command codes recognized by Cea608Stream. This + // list is not exhaustive. For a more comprehensive listing and semantics see + // http://www.gpo.gov/fdsys/pkg/CFR-2010-title47-vol1/pdf/CFR-2010-title47-vol1-sec15-119.pdf + // Padding + this.PADDING_ = 0x0000; + // Pop-on Mode + this.RESUME_CAPTION_LOADING_ = this.CONTROL_ | 0x20; + this.END_OF_CAPTION_ = this.CONTROL_ | 0x2f; + // Roll-up Mode + this.ROLL_UP_2_ROWS_ = this.CONTROL_ | 0x25; + this.ROLL_UP_3_ROWS_ = this.CONTROL_ | 0x26; + this.ROLL_UP_4_ROWS_ = this.CONTROL_ | 0x27; + this.CARRIAGE_RETURN_ = this.CONTROL_ | 0x2d; + // paint-on mode + this.RESUME_DIRECT_CAPTIONING_ = this.CONTROL_ | 0x29; + // Erasure + this.BACKSPACE_ = this.CONTROL_ | 0x21; + this.ERASE_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2c; + this.ERASE_NON_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2e; + }; + + /** + * Detects if the 2-byte packet data is a special character + * + * Special characters have a second byte in the range 0x30 to 0x3f, + * with the first byte being 0x11 (for data channel 1) or 0x19 (for + * data channel 2). + * + * @param {Integer} char0 The first byte + * @param {Integer} char1 The second byte + * @return {Boolean} Whether the 2 bytes are an special character + */ + Cea608Stream.prototype.isSpecialCharacter = function(char0, char1) { + return (char0 === this.EXT_ && char1 >= 0x30 && char1 <= 0x3f); + }; + + /** + * Detects if the 2-byte packet data is an extended character + * + * Extended characters have a second byte in the range 0x20 to 0x3f, + * with the first byte being 0x12 or 0x13 (for data channel 1) or + * 0x1a or 0x1b (for data channel 2). + * + * @param {Integer} char0 The first byte + * @param {Integer} char1 The second byte + * @return {Boolean} Whether the 2 bytes are an extended character + */ + Cea608Stream.prototype.isExtCharacter = function(char0, char1) { + return ((char0 === (this.EXT_ + 1) || char0 === (this.EXT_ + 2)) && + (char1 >= 0x20 && char1 <= 0x3f)); + }; + + /** + * Detects if the 2-byte packet is a mid-row code + * + * Mid-row codes have a second byte in the range 0x20 to 0x2f, with + * the first byte being 0x11 (for data channel 1) or 0x19 (for data + * channel 2). + * + * @param {Integer} char0 The first byte + * @param {Integer} char1 The second byte + * @return {Boolean} Whether the 2 bytes are a mid-row code + */ + Cea608Stream.prototype.isMidRowCode = function(char0, char1) { + return (char0 === this.EXT_ && (char1 >= 0x20 && char1 <= 0x2f)); + }; + + /** + * Detects if the 2-byte packet is an offset control code + * + * Offset control codes have a second byte in the range 0x21 to 0x23, + * with the first byte being 0x17 (for data channel 1) or 0x1f (for + * data channel 2). + * + * @param {Integer} char0 The first byte + * @param {Integer} char1 The second byte + * @return {Boolean} Whether the 2 bytes are an offset control code + */ + Cea608Stream.prototype.isOffsetControlCode = function(char0, char1) { + return (char0 === this.OFFSET_ && (char1 >= 0x21 && char1 <= 0x23)); + }; + + /** + * Detects if the 2-byte packet is a Preamble Address Code + * + * PACs have a first byte in the range 0x10 to 0x17 (for data channel 1) + * or 0x18 to 0x1f (for data channel 2), with the second byte in the + * range 0x40 to 0x7f. + * + * @param {Integer} char0 The first byte + * @param {Integer} char1 The second byte + * @return {Boolean} Whether the 2 bytes are a PAC + */ + Cea608Stream.prototype.isPAC = function(char0, char1) { + return (char0 >= this.BASE_ && char0 < (this.BASE_ + 8) && + (char1 >= 0x40 && char1 <= 0x7f)); + }; + + /** + * Detects if a packet's second byte is in the range of a PAC color code + * + * PAC color codes have the second byte be in the range 0x40 to 0x4f, or + * 0x60 to 0x6f. + * + * @param {Integer} char1 The second byte + * @return {Boolean} Whether the byte is a color PAC + */ + Cea608Stream.prototype.isColorPAC = function(char1) { + return ((char1 >= 0x40 && char1 <= 0x4f) || (char1 >= 0x60 && char1 <= 0x7f)); + }; + + /** + * Detects if a single byte is in the range of a normal character + * + * Normal text bytes are in the range 0x20 to 0x7f. + * + * @param {Integer} char The byte + * @return {Boolean} Whether the byte is a normal character + */ + Cea608Stream.prototype.isNormalChar = function(char) { + return (char >= 0x20 && char <= 0x7f); + }; + + /** + * Configures roll-up + * + * @param {Integer} pts Current PTS + * @param {Integer} newBaseRow Used by PACs to slide the current window to + * a new position + */ + Cea608Stream.prototype.setRollUp = function(pts, newBaseRow) { + // Reset the base row to the bottom row when switching modes + if (this.mode_ !== 'rollUp') { + this.row_ = BOTTOM_ROW; + this.mode_ = 'rollUp'; + // Spec says to wipe memories when switching to roll-up + this.flushDisplayed(pts); + this.nonDisplayed_ = createDisplayBuffer(); + this.displayed_ = createDisplayBuffer(); + } + + if (newBaseRow !== undefined && newBaseRow !== this.row_) { + // move currently displayed captions (up or down) to the new base row + for (var i = 0; i < this.rollUpRows_; i++) { + this.displayed_[newBaseRow - i] = this.displayed_[this.row_ - i]; + this.displayed_[this.row_ - i] = ''; + } + } + + if (newBaseRow === undefined) { + newBaseRow = this.row_; + } + + this.topRow_ = newBaseRow - this.rollUpRows_ + 1; + }; + + // Adds the opening HTML tag for the passed character to the caption text, + // and keeps track of it for later closing + Cea608Stream.prototype.addFormatting = function(pts, format) { + this.formatting_ = this.formatting_.concat(format); + var text = format.reduce(function(text, format) { + return text + '<' + format + '>'; + }, ''); + this[this.mode_](pts, text); + }; + + // Adds HTML closing tags for current formatting to caption text and + // clears remembered formatting + Cea608Stream.prototype.clearFormatting = function(pts) { + if (!this.formatting_.length) { + return; + } + var text = this.formatting_.reverse().reduce(function(text, format) { + return text + ''; + }, ''); + this.formatting_ = []; + this[this.mode_](pts, text); + }; + + // Mode Implementations + Cea608Stream.prototype.popOn = function(pts, text) { + var baseRow = this.nonDisplayed_[this.row_]; + + // buffer characters + baseRow += text; + this.nonDisplayed_[this.row_] = baseRow; + }; + + Cea608Stream.prototype.rollUp = function(pts, text) { + var baseRow = this.displayed_[this.row_]; + + baseRow += text; + this.displayed_[this.row_] = baseRow; + + }; + + Cea608Stream.prototype.shiftRowsUp_ = function() { + var i; + // clear out inactive rows + for (i = 0; i < this.topRow_; i++) { + this.displayed_[i] = ''; + } + for (i = this.row_ + 1; i < BOTTOM_ROW + 1; i++) { + this.displayed_[i] = ''; + } + // shift displayed rows up + for (i = this.topRow_; i < this.row_; i++) { + this.displayed_[i] = this.displayed_[i + 1]; + } + // clear out the bottom row + this.displayed_[this.row_] = ''; + }; + + Cea608Stream.prototype.paintOn = function(pts, text) { + var baseRow = this.displayed_[this.row_]; + + baseRow += text; + this.displayed_[this.row_] = baseRow; + }; + + // exports + var captionStream = { + CaptionStream: CaptionStream, + Cea608Stream: Cea608Stream + }; + + var discardEmulationPreventionBytes$1 = captionPacketParser.discardEmulationPreventionBytes; + var CaptionStream$1 = captionStream.CaptionStream; + + + + /** + * Maps an offset in the mdat to a sample based on the the size of the samples. + * Assumes that `parseSamples` has been called first. + * + * @param {Number} offset - The offset into the mdat + * @param {Object[]} samples - An array of samples, parsed using `parseSamples` + * @return {?Object} The matching sample, or null if no match was found. + * + * @see ISO-BMFF-12/2015, Section 8.8.8 + **/ + var mapToSample = function(offset, samples) { + var approximateOffset = offset; + + for (var i = 0; i < samples.length; i++) { + var sample = samples[i]; + + if (approximateOffset < sample.size) { + return sample; + } + + approximateOffset -= sample.size; + } + + return null; + }; + + /** + * Finds SEI nal units contained in a Media Data Box. + * Assumes that `parseSamples` has been called first. + * + * @param {Uint8Array} avcStream - The bytes of the mdat + * @param {Object[]} samples - The samples parsed out by `parseSamples` + * @param {Number} trackId - The trackId of this video track + * @return {Object[]} seiNals - the parsed SEI NALUs found. + * The contents of the seiNal should match what is expected by + * CaptionStream.push (nalUnitType, size, data, escapedRBSP, pts, dts) + * + * @see ISO-BMFF-12/2015, Section 8.1.1 + * @see Rec. ITU-T H.264, 7.3.2.3.1 + **/ + var findSeiNals = function(avcStream, samples, trackId) { + var + avcView = new DataView(avcStream.buffer, avcStream.byteOffset, avcStream.byteLength), + result = [], + seiNal, + i, + length, + lastMatchedSample; + + for (i = 0; i + 4 < avcStream.length; i += length) { + length = avcView.getUint32(i); + i += 4; + + // Bail if this doesn't appear to be an H264 stream + if (length <= 0) { + continue; + } + + switch (avcStream[i] & 0x1F) { + case 0x06: + var data = avcStream.subarray(i + 1, i + 1 + length); + var matchingSample = mapToSample(i, samples); + + seiNal = { + nalUnitType: 'sei_rbsp', + size: length, + data: data, + escapedRBSP: discardEmulationPreventionBytes$1(data), + trackId: trackId + }; + + if (matchingSample) { + seiNal.pts = matchingSample.pts; + seiNal.dts = matchingSample.dts; + lastMatchedSample = matchingSample; + } else { + // If a matching sample cannot be found, use the last + // sample's values as they should be as close as possible + seiNal.pts = lastMatchedSample.pts; + seiNal.dts = lastMatchedSample.dts; + } + + result.push(seiNal); + break; + } + } + + return result; + }; + + /** + * Parses sample information out of Track Run Boxes and calculates + * the absolute presentation and decode timestamps of each sample. + * + * @param {Array} truns - The Trun Run boxes to be parsed + * @param {Number} baseMediaDecodeTime - base media decode time from tfdt + @see ISO-BMFF-12/2015, Section 8.8.12 + * @param {Object} tfhd - The parsed Track Fragment Header + * @see inspect.parseTfhd + * @return {Object[]} the parsed samples + * + * @see ISO-BMFF-12/2015, Section 8.8.8 + **/ + var parseSamples = function(truns, baseMediaDecodeTime, tfhd) { + var currentDts = baseMediaDecodeTime; + var defaultSampleDuration = tfhd.defaultSampleDuration || 0; + var defaultSampleSize = tfhd.defaultSampleSize || 0; + var trackId = tfhd.trackId; + var allSamples = []; + + truns.forEach(function(trun) { + // Note: We currently do not parse the sample table as well + // as the trun. It's possible some sources will require this. + // moov > trak > mdia > minf > stbl + var trackRun = mp4Inspector.parseTrun(trun); + var samples = trackRun.samples; + + samples.forEach(function(sample) { + if (sample.duration === undefined) { + sample.duration = defaultSampleDuration; + } + if (sample.size === undefined) { + sample.size = defaultSampleSize; + } + sample.trackId = trackId; + sample.dts = currentDts; + if (sample.compositionTimeOffset === undefined) { + sample.compositionTimeOffset = 0; + } + sample.pts = currentDts + sample.compositionTimeOffset; + + currentDts += sample.duration; + }); + + allSamples = allSamples.concat(samples); + }); + + return allSamples; + }; + + /** + * Parses out caption nals from an FMP4 segment's video tracks. + * + * @param {Uint8Array} segment - The bytes of a single segment + * @param {Number} videoTrackId - The trackId of a video track in the segment + * @return {Object.} A mapping of video trackId to + * a list of seiNals found in that track + **/ + var parseCaptionNals = function(segment, videoTrackId) { + // To get the samples + var trafs = probe.findBox(segment, ['moof', 'traf']); + // To get SEI NAL units + var mdats = probe.findBox(segment, ['mdat']); + var captionNals = {}; + var mdatTrafPairs = []; + + // Pair up each traf with a mdat as moofs and mdats are in pairs + mdats.forEach(function(mdat, index) { + var matchingTraf = trafs[index]; + mdatTrafPairs.push({ + mdat: mdat, + traf: matchingTraf + }); + }); + + mdatTrafPairs.forEach(function(pair) { + var mdat = pair.mdat; + var traf = pair.traf; + var tfhd = probe.findBox(traf, ['tfhd']); + // Exactly 1 tfhd per traf + var headerInfo = mp4Inspector.parseTfhd(tfhd[0]); + var trackId = headerInfo.trackId; + var tfdt = probe.findBox(traf, ['tfdt']); + // Either 0 or 1 tfdt per traf + var baseMediaDecodeTime = (tfdt.length > 0) ? mp4Inspector.parseTfdt(tfdt[0]).baseMediaDecodeTime : 0; + var truns = probe.findBox(traf, ['trun']); + var samples; + var seiNals; + + // Only parse video data for the chosen video track + if (videoTrackId === trackId && truns.length > 0) { + samples = parseSamples(truns, baseMediaDecodeTime, headerInfo); + + seiNals = findSeiNals(mdat, samples, trackId); + + if (!captionNals[trackId]) { + captionNals[trackId] = []; + } + + captionNals[trackId] = captionNals[trackId].concat(seiNals); + } + }); + + return captionNals; + }; + + /** + * Parses out inband captions from an MP4 container and returns + * caption objects that can be used by WebVTT and the TextTrack API. + * @see https://developer.mozilla.org/en-US/docs/Web/API/VTTCue + * @see https://developer.mozilla.org/en-US/docs/Web/API/TextTrack + * Assumes that `probe.getVideoTrackIds` and `probe.timescale` have been called first + * + * @param {Uint8Array} segment - The fmp4 segment containing embedded captions + * @param {Number} trackId - The id of the video track to parse + * @param {Number} timescale - The timescale for the video track from the init segment + * + * @return {?Object[]} parsedCaptions - A list of captions or null if no video tracks + * @return {Number} parsedCaptions[].startTime - The time to show the caption in seconds + * @return {Number} parsedCaptions[].endTime - The time to stop showing the caption in seconds + * @return {String} parsedCaptions[].text - The visible content of the caption + **/ + var parseEmbeddedCaptions = function(segment, trackId, timescale) { + var seiNals; + + // the ISO-BMFF spec says that trackId can't be zero, but there's some broken content out there + if (trackId === null) { + return null; + } + + seiNals = parseCaptionNals(segment, trackId); + + return { + seiNals: seiNals[trackId], + timescale: timescale + }; + }; + + /** + * Converts SEI NALUs into captions that can be used by video.js + **/ + var CaptionParser = function() { + var isInitialized = false; + var captionStream; + + // Stores segments seen before trackId and timescale are set + var segmentCache; + // Stores video track ID of the track being parsed + var trackId; + // Stores the timescale of the track being parsed + var timescale; + // Stores captions parsed so far + var parsedCaptions; + // Stores whether we are receiving partial data or not + var parsingPartial; + + /** + * A method to indicate whether a CaptionParser has been initalized + * @returns {Boolean} + **/ + this.isInitialized = function() { + return isInitialized; + }; + + /** + * Initializes the underlying CaptionStream, SEI NAL parsing + * and management, and caption collection + **/ + this.init = function(options) { + captionStream = new CaptionStream$1(); + isInitialized = true; + parsingPartial = options ? options.isPartial : false; + + // Collect dispatched captions + captionStream.on('data', function(event) { + // Convert to seconds in the source's timescale + event.startTime = event.startPts / timescale; + event.endTime = event.endPts / timescale; + + parsedCaptions.captions.push(event); + parsedCaptions.captionStreams[event.stream] = true; + }); + }; + + /** + * Determines if a new video track will be selected + * or if the timescale changed + * @return {Boolean} + **/ + this.isNewInit = function(videoTrackIds, timescales) { + if ((videoTrackIds && videoTrackIds.length === 0) || + (timescales && typeof timescales === 'object' && + Object.keys(timescales).length === 0)) { + return false; + } + + return trackId !== videoTrackIds[0] || + timescale !== timescales[trackId]; + }; + + /** + * Parses out SEI captions and interacts with underlying + * CaptionStream to return dispatched captions + * + * @param {Uint8Array} segment - The fmp4 segment containing embedded captions + * @param {Number[]} videoTrackIds - A list of video tracks found in the init segment + * @param {Object.} timescales - The timescales found in the init segment + * @see parseEmbeddedCaptions + * @see m2ts/caption-stream.js + **/ + this.parse = function(segment, videoTrackIds, timescales) { + var parsedData; + + if (!this.isInitialized()) { + return null; + + // This is not likely to be a video segment + } else if (!videoTrackIds || !timescales) { + return null; + + } else if (this.isNewInit(videoTrackIds, timescales)) { + // Use the first video track only as there is no + // mechanism to switch to other video tracks + trackId = videoTrackIds[0]; + timescale = timescales[trackId]; + + // If an init segment has not been seen yet, hold onto segment + // data until we have one. + // the ISO-BMFF spec says that trackId can't be zero, but there's some broken content out there + } else if (trackId === null || !timescale) { + segmentCache.push(segment); + return null; + } + + // Now that a timescale and trackId is set, parse cached segments + while (segmentCache.length > 0) { + var cachedSegment = segmentCache.shift(); + + this.parse(cachedSegment, videoTrackIds, timescales); + } + + parsedData = parseEmbeddedCaptions(segment, trackId, timescale); + + if (parsedData === null || !parsedData.seiNals) { + return null; + } + + this.pushNals(parsedData.seiNals); + // Force the parsed captions to be dispatched + this.flushStream(); + + return parsedCaptions; + }; + + /** + * Pushes SEI NALUs onto CaptionStream + * @param {Object[]} nals - A list of SEI nals parsed using `parseCaptionNals` + * Assumes that `parseCaptionNals` has been called first + * @see m2ts/caption-stream.js + **/ + this.pushNals = function(nals) { + if (!this.isInitialized() || !nals || nals.length === 0) { + return null; + } + + nals.forEach(function(nal) { + captionStream.push(nal); + }); + }; + + /** + * Flushes underlying CaptionStream to dispatch processed, displayable captions + * @see m2ts/caption-stream.js + **/ + this.flushStream = function() { + if (!this.isInitialized()) { + return null; + } + + if (!parsingPartial) { + captionStream.flush(); + } else { + captionStream.partialFlush(); + } + }; + + /** + * Reset caption buckets for new data + **/ + this.clearParsedCaptions = function() { + parsedCaptions.captions = []; + parsedCaptions.captionStreams = {}; + }; + + /** + * Resets underlying CaptionStream + * @see m2ts/caption-stream.js + **/ + this.resetCaptionStream = function() { + if (!this.isInitialized()) { + return null; + } + + captionStream.reset(); + }; + + /** + * Convenience method to clear all captions flushed from the + * CaptionStream and still being parsed + * @see m2ts/caption-stream.js + **/ + this.clearAllCaptions = function() { + this.clearParsedCaptions(); + this.resetCaptionStream(); + }; + + /** + * Reset caption parser + **/ + this.reset = function() { + segmentCache = []; + trackId = null; + timescale = null; + + if (!parsedCaptions) { + parsedCaptions = { + captions: [], + // CC1, CC2, CC3, CC4 + captionStreams: {} + }; + } else { + this.clearParsedCaptions(); + } + + this.resetCaptionStream(); + }; + + this.reset(); + }; + + var captionParser = CaptionParser; + + /** + * mux.js + * + * Copyright (c) Brightcove + * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE + */ + + var streamTypes = { + H264_STREAM_TYPE: 0x1B, + ADTS_STREAM_TYPE: 0x0F, + METADATA_STREAM_TYPE: 0x15 + }; + + var MAX_TS = 8589934592; + + var RO_THRESH = 4294967296; + + var TYPE_SHARED = 'shared'; + + var handleRollover = function(value, reference) { + var direction = 1; + + if (value > reference) { + // If the current timestamp value is greater than our reference timestamp and we detect a + // timestamp rollover, this means the roll over is happening in the opposite direction. + // Example scenario: Enter a long stream/video just after a rollover occurred. The reference + // point will be set to a small number, e.g. 1. The user then seeks backwards over the + // rollover point. In loading this segment, the timestamp values will be very large, + // e.g. 2^33 - 1. Since this comes before the data we loaded previously, we want to adjust + // the time stamp to be `value - 2^33`. + direction = -1; + } + + // Note: A seek forwards or back that is greater than the RO_THRESH (2^32, ~13 hours) will + // cause an incorrect adjustment. + while (Math.abs(reference - value) > RO_THRESH) { + value += (direction * MAX_TS); + } + + return value; + }; + + var TimestampRolloverStream = function(type) { + var lastDTS, referenceDTS; + + TimestampRolloverStream.prototype.init.call(this); + + // The "shared" type is used in cases where a stream will contain muxed + // video and audio. We could use `undefined` here, but having a string + // makes debugging a little clearer. + this.type_ = type || TYPE_SHARED; + + this.push = function(data) { + + // Any "shared" rollover streams will accept _all_ data. Otherwise, + // streams will only accept data that matches their type. + if (this.type_ !== TYPE_SHARED && data.type !== this.type_) { + return; + } + + if (referenceDTS === undefined) { + referenceDTS = data.dts; + } + + data.dts = handleRollover(data.dts, referenceDTS); + data.pts = handleRollover(data.pts, referenceDTS); + + lastDTS = data.dts; + + this.trigger('data', data); + }; + + this.flush = function() { + referenceDTS = lastDTS; + this.trigger('done'); + }; + + this.endTimeline = function() { + this.flush(); + this.trigger('endedtimeline'); + }; + + this.discontinuity = function() { + referenceDTS = void 0; + lastDTS = void 0; + }; + + this.reset = function() { + this.discontinuity(); + this.trigger('reset'); + }; + }; + + TimestampRolloverStream.prototype = new stream(); + + var timestampRolloverStream = { + TimestampRolloverStream: TimestampRolloverStream, + handleRollover: handleRollover + }; + + var parsePid = function(packet) { + var pid = packet[1] & 0x1f; + pid <<= 8; + pid |= packet[2]; + return pid; + }; + + var parsePayloadUnitStartIndicator = function(packet) { + return !!(packet[1] & 0x40); + }; + + var parseAdaptionField = function(packet) { + var offset = 0; + // if an adaption field is present, its length is specified by the + // fifth byte of the TS packet header. The adaptation field is + // used to add stuffing to PES packets that don't fill a complete + // TS packet, and to specify some forms of timing and control data + // that we do not currently use. + if (((packet[3] & 0x30) >>> 4) > 0x01) { + offset += packet[4] + 1; + } + return offset; + }; + + var parseType$1 = function(packet, pmtPid) { + var pid = parsePid(packet); + if (pid === 0) { + return 'pat'; + } else if (pid === pmtPid) { + return 'pmt'; + } else if (pmtPid) { + return 'pes'; + } + return null; + }; + + var parsePat = function(packet) { + var pusi = parsePayloadUnitStartIndicator(packet); + var offset = 4 + parseAdaptionField(packet); + + if (pusi) { + offset += packet[offset] + 1; + } + + return (packet[offset + 10] & 0x1f) << 8 | packet[offset + 11]; + }; + + var parsePmt = function(packet) { + var programMapTable = {}; + var pusi = parsePayloadUnitStartIndicator(packet); + var payloadOffset = 4 + parseAdaptionField(packet); + + if (pusi) { + payloadOffset += packet[payloadOffset] + 1; + } + + // PMTs can be sent ahead of the time when they should actually + // take effect. We don't believe this should ever be the case + // for HLS but we'll ignore "forward" PMT declarations if we see + // them. Future PMT declarations have the current_next_indicator + // set to zero. + if (!(packet[payloadOffset + 5] & 0x01)) { + return; + } + + var sectionLength, tableEnd, programInfoLength; + // the mapping table ends at the end of the current section + sectionLength = (packet[payloadOffset + 1] & 0x0f) << 8 | packet[payloadOffset + 2]; + tableEnd = 3 + sectionLength - 4; + + // to determine where the table is, we have to figure out how + // long the program info descriptors are + programInfoLength = (packet[payloadOffset + 10] & 0x0f) << 8 | packet[payloadOffset + 11]; + + // advance the offset to the first entry in the mapping table + var offset = 12 + programInfoLength; + while (offset < tableEnd) { + var i = payloadOffset + offset; + // add an entry that maps the elementary_pid to the stream_type + programMapTable[(packet[i + 1] & 0x1F) << 8 | packet[i + 2]] = packet[i]; + + // move to the next table entry + // skip past the elementary stream descriptors, if present + offset += ((packet[i + 3] & 0x0F) << 8 | packet[i + 4]) + 5; + } + return programMapTable; + }; + + var parsePesType = function(packet, programMapTable) { + var pid = parsePid(packet); + var type = programMapTable[pid]; + switch (type) { + case streamTypes.H264_STREAM_TYPE: + return 'video'; + case streamTypes.ADTS_STREAM_TYPE: + return 'audio'; + case streamTypes.METADATA_STREAM_TYPE: + return 'timed-metadata'; + default: + return null; + } + }; + + var parsePesTime = function(packet) { + var pusi = parsePayloadUnitStartIndicator(packet); + if (!pusi) { + return null; + } + + var offset = 4 + parseAdaptionField(packet); + + if (offset >= packet.byteLength) { + // From the H 222.0 MPEG-TS spec + // "For transport stream packets carrying PES packets, stuffing is needed when there + // is insufficient PES packet data to completely fill the transport stream packet + // payload bytes. Stuffing is accomplished by defining an adaptation field longer than + // the sum of the lengths of the data elements in it, so that the payload bytes + // remaining after the adaptation field exactly accommodates the available PES packet + // data." + // + // If the offset is >= the length of the packet, then the packet contains no data + // and instead is just adaption field stuffing bytes + return null; + } + + var pes = null; + var ptsDtsFlags; + + // PES packets may be annotated with a PTS value, or a PTS value + // and a DTS value. Determine what combination of values is + // available to work with. + ptsDtsFlags = packet[offset + 7]; + + // PTS and DTS are normally stored as a 33-bit number. Javascript + // performs all bitwise operations on 32-bit integers but javascript + // supports a much greater range (52-bits) of integer using standard + // mathematical operations. + // We construct a 31-bit value using bitwise operators over the 31 + // most significant bits and then multiply by 4 (equal to a left-shift + // of 2) before we add the final 2 least significant bits of the + // timestamp (equal to an OR.) + if (ptsDtsFlags & 0xC0) { + pes = {}; + // the PTS and DTS are not written out directly. For information + // on how they are encoded, see + // http://dvd.sourceforge.net/dvdinfo/pes-hdr.html + pes.pts = (packet[offset + 9] & 0x0E) << 27 | + (packet[offset + 10] & 0xFF) << 20 | + (packet[offset + 11] & 0xFE) << 12 | + (packet[offset + 12] & 0xFF) << 5 | + (packet[offset + 13] & 0xFE) >>> 3; + pes.pts *= 4; // Left shift by 2 + pes.pts += (packet[offset + 13] & 0x06) >>> 1; // OR by the two LSBs + pes.dts = pes.pts; + if (ptsDtsFlags & 0x40) { + pes.dts = (packet[offset + 14] & 0x0E) << 27 | + (packet[offset + 15] & 0xFF) << 20 | + (packet[offset + 16] & 0xFE) << 12 | + (packet[offset + 17] & 0xFF) << 5 | + (packet[offset + 18] & 0xFE) >>> 3; + pes.dts *= 4; // Left shift by 2 + pes.dts += (packet[offset + 18] & 0x06) >>> 1; // OR by the two LSBs + } + } + return pes; + }; + + var parseNalUnitType = function(type) { + switch (type) { + case 0x05: + return 'slice_layer_without_partitioning_rbsp_idr'; + case 0x06: + return 'sei_rbsp'; + case 0x07: + return 'seq_parameter_set_rbsp'; + case 0x08: + return 'pic_parameter_set_rbsp'; + case 0x09: + return 'access_unit_delimiter_rbsp'; + default: + return null; + } + }; + + var videoPacketContainsKeyFrame = function(packet) { + var offset = 4 + parseAdaptionField(packet); + var frameBuffer = packet.subarray(offset); + var frameI = 0; + var frameSyncPoint = 0; + var foundKeyFrame = false; + var nalType; + + // advance the sync point to a NAL start, if necessary + for (; frameSyncPoint < frameBuffer.byteLength - 3; frameSyncPoint++) { + if (frameBuffer[frameSyncPoint + 2] === 1) { + // the sync point is properly aligned + frameI = frameSyncPoint + 5; + break; + } + } + + while (frameI < frameBuffer.byteLength) { + // look at the current byte to determine if we've hit the end of + // a NAL unit boundary + switch (frameBuffer[frameI]) { + case 0: + // skip past non-sync sequences + if (frameBuffer[frameI - 1] !== 0) { + frameI += 2; + break; + } else if (frameBuffer[frameI - 2] !== 0) { + frameI++; + break; + } + + if (frameSyncPoint + 3 !== frameI - 2) { + nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f); + if (nalType === 'slice_layer_without_partitioning_rbsp_idr') { + foundKeyFrame = true; + } + } + + // drop trailing zeroes + do { + frameI++; + } while (frameBuffer[frameI] !== 1 && frameI < frameBuffer.length); + frameSyncPoint = frameI - 2; + frameI += 3; + break; + case 1: + // skip past non-sync sequences + if (frameBuffer[frameI - 1] !== 0 || + frameBuffer[frameI - 2] !== 0) { + frameI += 3; + break; + } + + nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f); + if (nalType === 'slice_layer_without_partitioning_rbsp_idr') { + foundKeyFrame = true; + } + frameSyncPoint = frameI - 2; + frameI += 3; + break; + default: + // the current byte isn't a one or zero, so it cannot be part + // of a sync sequence + frameI += 3; + break; + } + } + frameBuffer = frameBuffer.subarray(frameSyncPoint); + frameI -= frameSyncPoint; + frameSyncPoint = 0; + // parse the final nal + if (frameBuffer && frameBuffer.byteLength > 3) { + nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f); + if (nalType === 'slice_layer_without_partitioning_rbsp_idr') { + foundKeyFrame = true; + } + } + + return foundKeyFrame; + }; + + + var probe$1 = { + parseType: parseType$1, + parsePat: parsePat, + parsePmt: parsePmt, + parsePayloadUnitStartIndicator: parsePayloadUnitStartIndicator, + parsePesType: parsePesType, + parsePesTime: parsePesTime, + videoPacketContainsKeyFrame: videoPacketContainsKeyFrame + }; + + /** + * mux.js + * + * Copyright (c) Brightcove + * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE + * + * Utilities to detect basic properties and metadata about Aac data. + */ + + var ADTS_SAMPLING_FREQUENCIES = [ + 96000, + 88200, + 64000, + 48000, + 44100, + 32000, + 24000, + 22050, + 16000, + 12000, + 11025, + 8000, + 7350 + ]; + + var isLikelyAacData = function(data) { + if ((data[0] === 'I'.charCodeAt(0)) && + (data[1] === 'D'.charCodeAt(0)) && + (data[2] === '3'.charCodeAt(0))) { + return true; + } + return false; + }; + + var parseSyncSafeInteger = function(data) { + return (data[0] << 21) | + (data[1] << 14) | + (data[2] << 7) | + (data[3]); + }; + + // return a percent-encoded representation of the specified byte range + // @see http://en.wikipedia.org/wiki/Percent-encoding + var percentEncode = function(bytes, start, end) { + var i, result = ''; + for (i = start; i < end; i++) { + result += '%' + ('00' + bytes[i].toString(16)).slice(-2); + } + return result; + }; + + // return the string representation of the specified byte range, + // interpreted as ISO-8859-1. + var parseIso88591 = function(bytes, start, end) { + return unescape(percentEncode(bytes, start, end)); // jshint ignore:line + }; + + var parseId3TagSize = function(header, byteIndex) { + var + returnSize = (header[byteIndex + 6] << 21) | + (header[byteIndex + 7] << 14) | + (header[byteIndex + 8] << 7) | + (header[byteIndex + 9]), + flags = header[byteIndex + 5], + footerPresent = (flags & 16) >> 4; + + if (footerPresent) { + return returnSize + 20; + } + return returnSize + 10; + }; + + var parseAdtsSize = function(header, byteIndex) { + var + lowThree = (header[byteIndex + 5] & 0xE0) >> 5, + middle = header[byteIndex + 4] << 3, + highTwo = header[byteIndex + 3] & 0x3 << 11; + + return (highTwo | middle) | lowThree; + }; + + var parseType$2 = function(header, byteIndex) { + if ((header[byteIndex] === 'I'.charCodeAt(0)) && + (header[byteIndex + 1] === 'D'.charCodeAt(0)) && + (header[byteIndex + 2] === '3'.charCodeAt(0))) { + return 'timed-metadata'; + } else if ((header[byteIndex] & 0xff === 0xff) && + ((header[byteIndex + 1] & 0xf0) === 0xf0)) { + return 'audio'; + } + return null; + }; + + var parseSampleRate = function(packet) { + var i = 0; + + while (i + 5 < packet.length) { + if (packet[i] !== 0xFF || (packet[i + 1] & 0xF6) !== 0xF0) { + // If a valid header was not found, jump one forward and attempt to + // find a valid ADTS header starting at the next byte + i++; + continue; + } + return ADTS_SAMPLING_FREQUENCIES[(packet[i + 2] & 0x3c) >>> 2]; + } + + return null; + }; + + var parseAacTimestamp = function(packet) { + var frameStart, frameSize, frame, frameHeader; + + // find the start of the first frame and the end of the tag + frameStart = 10; + if (packet[5] & 0x40) { + // advance the frame start past the extended header + frameStart += 4; // header size field + frameStart += parseSyncSafeInteger(packet.subarray(10, 14)); + } + + // parse one or more ID3 frames + // http://id3.org/id3v2.3.0#ID3v2_frame_overview + do { + // determine the number of bytes in this frame + frameSize = parseSyncSafeInteger(packet.subarray(frameStart + 4, frameStart + 8)); + if (frameSize < 1) { + return null; + } + frameHeader = String.fromCharCode(packet[frameStart], + packet[frameStart + 1], + packet[frameStart + 2], + packet[frameStart + 3]); + + if (frameHeader === 'PRIV') { + frame = packet.subarray(frameStart + 10, frameStart + frameSize + 10); + + for (var i = 0; i < frame.byteLength; i++) { + if (frame[i] === 0) { + var owner = parseIso88591(frame, 0, i); + if (owner === 'com.apple.streaming.transportStreamTimestamp') { + var d = frame.subarray(i + 1); + var size = ((d[3] & 0x01) << 30) | + (d[4] << 22) | + (d[5] << 14) | + (d[6] << 6) | + (d[7] >>> 2); + size *= 4; + size += d[7] & 0x03; + + return size; + } + break; + } + } + } + + frameStart += 10; // advance past the frame header + frameStart += frameSize; // advance past the frame body + } while (frameStart < packet.byteLength); + return null; + }; + + var utils = { + isLikelyAacData: isLikelyAacData, + parseId3TagSize: parseId3TagSize, + parseAdtsSize: parseAdtsSize, + parseType: parseType$2, + parseSampleRate: parseSampleRate, + parseAacTimestamp: parseAacTimestamp + }; + + /** + * mux.js + * + * Copyright (c) Brightcove + * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE + */ + var + ONE_SECOND_IN_TS = 90000, // 90kHz clock + secondsToVideoTs, + secondsToAudioTs, + videoTsToSeconds, + audioTsToSeconds, + audioTsToVideoTs, + videoTsToAudioTs, + metadataTsToSeconds; + + secondsToVideoTs = function(seconds) { + return seconds * ONE_SECOND_IN_TS; + }; + + secondsToAudioTs = function(seconds, sampleRate) { + return seconds * sampleRate; + }; + + videoTsToSeconds = function(timestamp) { + return timestamp / ONE_SECOND_IN_TS; + }; + + audioTsToSeconds = function(timestamp, sampleRate) { + return timestamp / sampleRate; + }; + + audioTsToVideoTs = function(timestamp, sampleRate) { + return secondsToVideoTs(audioTsToSeconds(timestamp, sampleRate)); + }; + + videoTsToAudioTs = function(timestamp, sampleRate) { + return secondsToAudioTs(videoTsToSeconds(timestamp), sampleRate); + }; + + /** + * Adjust ID3 tag or caption timing information by the timeline pts values + * (if keepOriginalTimestamps is false) and convert to seconds + */ + metadataTsToSeconds = function(timestamp, timelineStartPts, keepOriginalTimestamps) { + return videoTsToSeconds(keepOriginalTimestamps ? timestamp : timestamp - timelineStartPts); + }; + + var clock = { + ONE_SECOND_IN_TS: ONE_SECOND_IN_TS, + secondsToVideoTs: secondsToVideoTs, + secondsToAudioTs: secondsToAudioTs, + videoTsToSeconds: videoTsToSeconds, + audioTsToSeconds: audioTsToSeconds, + audioTsToVideoTs: audioTsToVideoTs, + videoTsToAudioTs: videoTsToAudioTs, + metadataTsToSeconds: metadataTsToSeconds + }; + + var handleRollover$1 = timestampRolloverStream.handleRollover; + var probe$2 = {}; + probe$2.ts = probe$1; + probe$2.aac = utils; + var ONE_SECOND_IN_TS$1 = clock.ONE_SECOND_IN_TS; + + var + MP2T_PACKET_LENGTH = 188, // bytes + SYNC_BYTE = 0x47; + + /** + * walks through segment data looking for pat and pmt packets to parse out + * program map table information + */ + var parsePsi_ = function(bytes, pmt) { + var + startIndex = 0, + endIndex = MP2T_PACKET_LENGTH, + packet, type; + + while (endIndex < bytes.byteLength) { + // Look for a pair of start and end sync bytes in the data.. + if (bytes[startIndex] === SYNC_BYTE && bytes[endIndex] === SYNC_BYTE) { + // We found a packet + packet = bytes.subarray(startIndex, endIndex); + type = probe$2.ts.parseType(packet, pmt.pid); + + switch (type) { + case 'pat': + if (!pmt.pid) { + pmt.pid = probe$2.ts.parsePat(packet); + } + break; + case 'pmt': + if (!pmt.table) { + pmt.table = probe$2.ts.parsePmt(packet); + } + break; + } + + // Found the pat and pmt, we can stop walking the segment + if (pmt.pid && pmt.table) { + return; + } + + startIndex += MP2T_PACKET_LENGTH; + endIndex += MP2T_PACKET_LENGTH; + continue; + } + + // If we get here, we have somehow become de-synchronized and we need to step + // forward one byte at a time until we find a pair of sync bytes that denote + // a packet + startIndex++; + endIndex++; + } + }; + + /** + * walks through the segment data from the start and end to get timing information + * for the first and last audio pes packets + */ + var parseAudioPes_ = function(bytes, pmt, result) { + var + startIndex = 0, + endIndex = MP2T_PACKET_LENGTH, + packet, type, pesType, pusi, parsed; + + var endLoop = false; + + // Start walking from start of segment to get first audio packet + while (endIndex <= bytes.byteLength) { + // Look for a pair of start and end sync bytes in the data.. + if (bytes[startIndex] === SYNC_BYTE && + (bytes[endIndex] === SYNC_BYTE || endIndex === bytes.byteLength)) { + // We found a packet + packet = bytes.subarray(startIndex, endIndex); + type = probe$2.ts.parseType(packet, pmt.pid); + + switch (type) { + case 'pes': + pesType = probe$2.ts.parsePesType(packet, pmt.table); + pusi = probe$2.ts.parsePayloadUnitStartIndicator(packet); + if (pesType === 'audio' && pusi) { + parsed = probe$2.ts.parsePesTime(packet); + if (parsed) { + parsed.type = 'audio'; + result.audio.push(parsed); + endLoop = true; + } + } + break; + } + + if (endLoop) { + break; + } + + startIndex += MP2T_PACKET_LENGTH; + endIndex += MP2T_PACKET_LENGTH; + continue; + } + + // If we get here, we have somehow become de-synchronized and we need to step + // forward one byte at a time until we find a pair of sync bytes that denote + // a packet + startIndex++; + endIndex++; + } + + // Start walking from end of segment to get last audio packet + endIndex = bytes.byteLength; + startIndex = endIndex - MP2T_PACKET_LENGTH; + endLoop = false; + while (startIndex >= 0) { + // Look for a pair of start and end sync bytes in the data.. + if (bytes[startIndex] === SYNC_BYTE && + (bytes[endIndex] === SYNC_BYTE || endIndex === bytes.byteLength)) { + // We found a packet + packet = bytes.subarray(startIndex, endIndex); + type = probe$2.ts.parseType(packet, pmt.pid); + + switch (type) { + case 'pes': + pesType = probe$2.ts.parsePesType(packet, pmt.table); + pusi = probe$2.ts.parsePayloadUnitStartIndicator(packet); + if (pesType === 'audio' && pusi) { + parsed = probe$2.ts.parsePesTime(packet); + if (parsed) { + parsed.type = 'audio'; + result.audio.push(parsed); + endLoop = true; + } + } + break; + } + + if (endLoop) { + break; + } + + startIndex -= MP2T_PACKET_LENGTH; + endIndex -= MP2T_PACKET_LENGTH; + continue; + } + + // If we get here, we have somehow become de-synchronized and we need to step + // forward one byte at a time until we find a pair of sync bytes that denote + // a packet + startIndex--; + endIndex--; + } + }; + + /** + * walks through the segment data from the start and end to get timing information + * for the first and last video pes packets as well as timing information for the first + * key frame. + */ + var parseVideoPes_ = function(bytes, pmt, result) { + var + startIndex = 0, + endIndex = MP2T_PACKET_LENGTH, + packet, type, pesType, pusi, parsed, frame, i, pes; + + var endLoop = false; + + var currentFrame = { + data: [], + size: 0 + }; + + // Start walking from start of segment to get first video packet + while (endIndex < bytes.byteLength) { + // Look for a pair of start and end sync bytes in the data.. + if (bytes[startIndex] === SYNC_BYTE && bytes[endIndex] === SYNC_BYTE) { + // We found a packet + packet = bytes.subarray(startIndex, endIndex); + type = probe$2.ts.parseType(packet, pmt.pid); + + switch (type) { + case 'pes': + pesType = probe$2.ts.parsePesType(packet, pmt.table); + pusi = probe$2.ts.parsePayloadUnitStartIndicator(packet); + if (pesType === 'video') { + if (pusi && !endLoop) { + parsed = probe$2.ts.parsePesTime(packet); + if (parsed) { + parsed.type = 'video'; + result.video.push(parsed); + endLoop = true; + } + } + if (!result.firstKeyFrame) { + if (pusi) { + if (currentFrame.size !== 0) { + frame = new Uint8Array(currentFrame.size); + i = 0; + while (currentFrame.data.length) { + pes = currentFrame.data.shift(); + frame.set(pes, i); + i += pes.byteLength; + } + if (probe$2.ts.videoPacketContainsKeyFrame(frame)) { + var firstKeyFrame = probe$2.ts.parsePesTime(frame); + + // PTS/DTS may not be available. Simply *not* setting + // the keyframe seems to work fine with HLS playback + // and definitely preferable to a crash with TypeError... + if (firstKeyFrame) { + result.firstKeyFrame = firstKeyFrame; + result.firstKeyFrame.type = 'video'; + } else { + // eslint-disable-next-line + console.warn( + 'Failed to extract PTS/DTS from PES at first keyframe. ' + + 'This could be an unusual TS segment, or else mux.js did not ' + + 'parse your TS segment correctly. If you know your TS ' + + 'segments do contain PTS/DTS on keyframes please file a bug ' + + 'report! You can try ffprobe to double check for yourself.' + ); + } + } + currentFrame.size = 0; + } + } + currentFrame.data.push(packet); + currentFrame.size += packet.byteLength; + } + } + break; + } + + if (endLoop && result.firstKeyFrame) { + break; + } + + startIndex += MP2T_PACKET_LENGTH; + endIndex += MP2T_PACKET_LENGTH; + continue; + } + + // If we get here, we have somehow become de-synchronized and we need to step + // forward one byte at a time until we find a pair of sync bytes that denote + // a packet + startIndex++; + endIndex++; + } + + // Start walking from end of segment to get last video packet + endIndex = bytes.byteLength; + startIndex = endIndex - MP2T_PACKET_LENGTH; + endLoop = false; + while (startIndex >= 0) { + // Look for a pair of start and end sync bytes in the data.. + if (bytes[startIndex] === SYNC_BYTE && bytes[endIndex] === SYNC_BYTE) { + // We found a packet + packet = bytes.subarray(startIndex, endIndex); + type = probe$2.ts.parseType(packet, pmt.pid); + + switch (type) { + case 'pes': + pesType = probe$2.ts.parsePesType(packet, pmt.table); + pusi = probe$2.ts.parsePayloadUnitStartIndicator(packet); + if (pesType === 'video' && pusi) { + parsed = probe$2.ts.parsePesTime(packet); + if (parsed) { + parsed.type = 'video'; + result.video.push(parsed); + endLoop = true; + } + } + break; + } + + if (endLoop) { + break; + } + + startIndex -= MP2T_PACKET_LENGTH; + endIndex -= MP2T_PACKET_LENGTH; + continue; + } + + // If we get here, we have somehow become de-synchronized and we need to step + // forward one byte at a time until we find a pair of sync bytes that denote + // a packet + startIndex--; + endIndex--; + } + }; + + /** + * Adjusts the timestamp information for the segment to account for + * rollover and convert to seconds based on pes packet timescale (90khz clock) + */ + var adjustTimestamp_ = function(segmentInfo, baseTimestamp) { + if (segmentInfo.audio && segmentInfo.audio.length) { + var audioBaseTimestamp = baseTimestamp; + if (typeof audioBaseTimestamp === 'undefined') { + audioBaseTimestamp = segmentInfo.audio[0].dts; + } + segmentInfo.audio.forEach(function(info) { + info.dts = handleRollover$1(info.dts, audioBaseTimestamp); + info.pts = handleRollover$1(info.pts, audioBaseTimestamp); + // time in seconds + info.dtsTime = info.dts / ONE_SECOND_IN_TS$1; + info.ptsTime = info.pts / ONE_SECOND_IN_TS$1; + }); + } + + if (segmentInfo.video && segmentInfo.video.length) { + var videoBaseTimestamp = baseTimestamp; + if (typeof videoBaseTimestamp === 'undefined') { + videoBaseTimestamp = segmentInfo.video[0].dts; + } + segmentInfo.video.forEach(function(info) { + info.dts = handleRollover$1(info.dts, videoBaseTimestamp); + info.pts = handleRollover$1(info.pts, videoBaseTimestamp); + // time in seconds + info.dtsTime = info.dts / ONE_SECOND_IN_TS$1; + info.ptsTime = info.pts / ONE_SECOND_IN_TS$1; + }); + if (segmentInfo.firstKeyFrame) { + var frame = segmentInfo.firstKeyFrame; + frame.dts = handleRollover$1(frame.dts, videoBaseTimestamp); + frame.pts = handleRollover$1(frame.pts, videoBaseTimestamp); + // time in seconds + frame.dtsTime = frame.dts / ONE_SECOND_IN_TS$1; + frame.ptsTime = frame.dts / ONE_SECOND_IN_TS$1; + } + } + }; + + /** + * inspects the aac data stream for start and end time information + */ + var inspectAac_ = function(bytes) { + var + endLoop = false, + audioCount = 0, + sampleRate = null, + timestamp = null, + frameSize = 0, + byteIndex = 0, + packet; + + while (bytes.length - byteIndex >= 3) { + var type = probe$2.aac.parseType(bytes, byteIndex); + switch (type) { + case 'timed-metadata': + // Exit early because we don't have enough to parse + // the ID3 tag header + if (bytes.length - byteIndex < 10) { + endLoop = true; + break; + } + + frameSize = probe$2.aac.parseId3TagSize(bytes, byteIndex); + + // Exit early if we don't have enough in the buffer + // to emit a full packet + if (frameSize > bytes.length) { + endLoop = true; + break; + } + if (timestamp === null) { + packet = bytes.subarray(byteIndex, byteIndex + frameSize); + timestamp = probe$2.aac.parseAacTimestamp(packet); + } + byteIndex += frameSize; + break; + case 'audio': + // Exit early because we don't have enough to parse + // the ADTS frame header + if (bytes.length - byteIndex < 7) { + endLoop = true; + break; + } + + frameSize = probe$2.aac.parseAdtsSize(bytes, byteIndex); + + // Exit early if we don't have enough in the buffer + // to emit a full packet + if (frameSize > bytes.length) { + endLoop = true; + break; + } + if (sampleRate === null) { + packet = bytes.subarray(byteIndex, byteIndex + frameSize); + sampleRate = probe$2.aac.parseSampleRate(packet); + } + audioCount++; + byteIndex += frameSize; + break; + default: + byteIndex++; + break; + } + if (endLoop) { + return null; + } + } + if (sampleRate === null || timestamp === null) { + return null; + } + + var audioTimescale = ONE_SECOND_IN_TS$1 / sampleRate; + + var result = { + audio: [ + { + type: 'audio', + dts: timestamp, + pts: timestamp + }, + { + type: 'audio', + dts: timestamp + (audioCount * 1024 * audioTimescale), + pts: timestamp + (audioCount * 1024 * audioTimescale) + } + ] + }; + + return result; + }; + + /** + * inspects the transport stream segment data for start and end time information + * of the audio and video tracks (when present) as well as the first key frame's + * start time. + */ + var inspectTs_ = function(bytes) { + var pmt = { + pid: null, + table: null + }; + + var result = {}; + + parsePsi_(bytes, pmt); + + for (var pid in pmt.table) { + if (pmt.table.hasOwnProperty(pid)) { + var type = pmt.table[pid]; + switch (type) { + case streamTypes.H264_STREAM_TYPE: + result.video = []; + parseVideoPes_(bytes, pmt, result); + if (result.video.length === 0) { + delete result.video; + } + break; + case streamTypes.ADTS_STREAM_TYPE: + result.audio = []; + parseAudioPes_(bytes, pmt, result); + if (result.audio.length === 0) { + delete result.audio; + } + break; + } + } + } + return result; + }; + + /** + * Inspects segment byte data and returns an object with start and end timing information + * + * @param {Uint8Array} bytes The segment byte data + * @param {Number} baseTimestamp Relative reference timestamp used when adjusting frame + * timestamps for rollover. This value must be in 90khz clock. + * @return {Object} Object containing start and end frame timing info of segment. + */ + var inspect = function(bytes, baseTimestamp) { + var isAacData = probe$2.aac.isLikelyAacData(bytes); + + var result; + + if (isAacData) { + result = inspectAac_(bytes); + } else { + result = inspectTs_(bytes); + } + + if (!result || (!result.audio && !result.video)) { + return null; + } + + adjustTimestamp_(result, baseTimestamp); + + return result; + }; + + var tsInspector = { + inspect: inspect, + parseAudioPes_: parseAudioPes_ + }; + + /* + * pkcs7.pad + * https://github.com/brightcove/pkcs7 + * + * Copyright (c) 2014 Brightcove + * Licensed under the apache2 license. + */ + + /** + * Returns the subarray of a Uint8Array without PKCS#7 padding. + * @param padded {Uint8Array} unencrypted bytes that have been padded + * @return {Uint8Array} the unpadded bytes + * @see http://tools.ietf.org/html/rfc5652 + */ + function unpad(padded) { + return padded.subarray(0, padded.byteLength - padded[padded.byteLength - 1]); + } + + var classCallCheck = function (instance, Constructor) { + if (!(instance instanceof Constructor)) { + throw new TypeError("Cannot call a class as a function"); + } + }; + + var createClass = function () { + function defineProperties(target, props) { + for (var i = 0; i < props.length; i++) { + var descriptor = props[i]; + descriptor.enumerable = descriptor.enumerable || false; + descriptor.configurable = true; + if ("value" in descriptor) descriptor.writable = true; + Object.defineProperty(target, descriptor.key, descriptor); + } + } + + return function (Constructor, protoProps, staticProps) { + if (protoProps) defineProperties(Constructor.prototype, protoProps); + if (staticProps) defineProperties(Constructor, staticProps); + return Constructor; + }; + }(); + + + + + + + + + + var inherits$1 = function (subClass, superClass) { + if (typeof superClass !== "function" && superClass !== null) { + throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); + } + + subClass.prototype = Object.create(superClass && superClass.prototype, { + constructor: { + value: subClass, + enumerable: false, + writable: true, + configurable: true + } + }); + if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; + }; + + + + + + + + + + + + var possibleConstructorReturn = function (self, call) { + if (!self) { + throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); + } + + return call && (typeof call === "object" || typeof call === "function") ? call : self; + }; + + /** + * @file aes.js + * + * This file contains an adaptation of the AES decryption algorithm + * from the Standford Javascript Cryptography Library. That work is + * covered by the following copyright and permissions notice: + * + * Copyright 2009-2010 Emily Stark, Mike Hamburg, Dan Boneh. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * The views and conclusions contained in the software and documentation + * are those of the authors and should not be interpreted as representing + * official policies, either expressed or implied, of the authors. + */ + + /** + * Expand the S-box tables. + * + * @private + */ + var precompute = function precompute() { + var tables = [[[], [], [], [], []], [[], [], [], [], []]]; + var encTable = tables[0]; + var decTable = tables[1]; + var sbox = encTable[4]; + var sboxInv = decTable[4]; + var i = void 0; + var x = void 0; + var xInv = void 0; + var d = []; + var th = []; + var x2 = void 0; + var x4 = void 0; + var x8 = void 0; + var s = void 0; + var tEnc = void 0; + var tDec = void 0; + + // Compute double and third tables + for (i = 0; i < 256; i++) { + th[(d[i] = i << 1 ^ (i >> 7) * 283) ^ i] = i; + } + + for (x = xInv = 0; !sbox[x]; x ^= x2 || 1, xInv = th[xInv] || 1) { + // Compute sbox + s = xInv ^ xInv << 1 ^ xInv << 2 ^ xInv << 3 ^ xInv << 4; + s = s >> 8 ^ s & 255 ^ 99; + sbox[x] = s; + sboxInv[s] = x; + + // Compute MixColumns + x8 = d[x4 = d[x2 = d[x]]]; + tDec = x8 * 0x1010101 ^ x4 * 0x10001 ^ x2 * 0x101 ^ x * 0x1010100; + tEnc = d[s] * 0x101 ^ s * 0x1010100; + + for (i = 0; i < 4; i++) { + encTable[i][x] = tEnc = tEnc << 24 ^ tEnc >>> 8; + decTable[i][s] = tDec = tDec << 24 ^ tDec >>> 8; + } + } + + // Compactify. Considerable speedup on Firefox. + for (i = 0; i < 5; i++) { + encTable[i] = encTable[i].slice(0); + decTable[i] = decTable[i].slice(0); + } + return tables; + }; + var aesTables = null; + + /** + * Schedule out an AES key for both encryption and decryption. This + * is a low-level class. Use a cipher mode to do bulk encryption. + * + * @class AES + * @param key {Array} The key as an array of 4, 6 or 8 words. + */ + + var AES = function () { + function AES(key) { + classCallCheck(this, AES); + + /** + * The expanded S-box and inverse S-box tables. These will be computed + * on the client so that we don't have to send them down the wire. + * + * There are two tables, _tables[0] is for encryption and + * _tables[1] is for decryption. + * + * The first 4 sub-tables are the expanded S-box with MixColumns. The + * last (_tables[01][4]) is the S-box itself. + * + * @private + */ + // if we have yet to precompute the S-box tables + // do so now + if (!aesTables) { + aesTables = precompute(); + } + // then make a copy of that object for use + this._tables = [[aesTables[0][0].slice(), aesTables[0][1].slice(), aesTables[0][2].slice(), aesTables[0][3].slice(), aesTables[0][4].slice()], [aesTables[1][0].slice(), aesTables[1][1].slice(), aesTables[1][2].slice(), aesTables[1][3].slice(), aesTables[1][4].slice()]]; + var i = void 0; + var j = void 0; + var tmp = void 0; + var encKey = void 0; + var decKey = void 0; + var sbox = this._tables[0][4]; + var decTable = this._tables[1]; + var keyLen = key.length; + var rcon = 1; + + if (keyLen !== 4 && keyLen !== 6 && keyLen !== 8) { + throw new Error('Invalid aes key size'); + } + + encKey = key.slice(0); + decKey = []; + this._key = [encKey, decKey]; + + // schedule encryption keys + for (i = keyLen; i < 4 * keyLen + 28; i++) { + tmp = encKey[i - 1]; + + // apply sbox + if (i % keyLen === 0 || keyLen === 8 && i % keyLen === 4) { + tmp = sbox[tmp >>> 24] << 24 ^ sbox[tmp >> 16 & 255] << 16 ^ sbox[tmp >> 8 & 255] << 8 ^ sbox[tmp & 255]; + + // shift rows and add rcon + if (i % keyLen === 0) { + tmp = tmp << 8 ^ tmp >>> 24 ^ rcon << 24; + rcon = rcon << 1 ^ (rcon >> 7) * 283; + } + } + + encKey[i] = encKey[i - keyLen] ^ tmp; + } + + // schedule decryption keys + for (j = 0; i; j++, i--) { + tmp = encKey[j & 3 ? i : i - 4]; + if (i <= 4 || j < 4) { + decKey[j] = tmp; + } else { + decKey[j] = decTable[0][sbox[tmp >>> 24]] ^ decTable[1][sbox[tmp >> 16 & 255]] ^ decTable[2][sbox[tmp >> 8 & 255]] ^ decTable[3][sbox[tmp & 255]]; + } + } + } + + /** + * Decrypt 16 bytes, specified as four 32-bit words. + * + * @param {Number} encrypted0 the first word to decrypt + * @param {Number} encrypted1 the second word to decrypt + * @param {Number} encrypted2 the third word to decrypt + * @param {Number} encrypted3 the fourth word to decrypt + * @param {Int32Array} out the array to write the decrypted words + * into + * @param {Number} offset the offset into the output array to start + * writing results + * @return {Array} The plaintext. + */ + + + AES.prototype.decrypt = function decrypt(encrypted0, encrypted1, encrypted2, encrypted3, out, offset) { + var key = this._key[1]; + // state variables a,b,c,d are loaded with pre-whitened data + var a = encrypted0 ^ key[0]; + var b = encrypted3 ^ key[1]; + var c = encrypted2 ^ key[2]; + var d = encrypted1 ^ key[3]; + var a2 = void 0; + var b2 = void 0; + var c2 = void 0; + + // key.length === 2 ? + var nInnerRounds = key.length / 4 - 2; + var i = void 0; + var kIndex = 4; + var table = this._tables[1]; + + // load up the tables + var table0 = table[0]; + var table1 = table[1]; + var table2 = table[2]; + var table3 = table[3]; + var sbox = table[4]; + + // Inner rounds. Cribbed from OpenSSL. + for (i = 0; i < nInnerRounds; i++) { + a2 = table0[a >>> 24] ^ table1[b >> 16 & 255] ^ table2[c >> 8 & 255] ^ table3[d & 255] ^ key[kIndex]; + b2 = table0[b >>> 24] ^ table1[c >> 16 & 255] ^ table2[d >> 8 & 255] ^ table3[a & 255] ^ key[kIndex + 1]; + c2 = table0[c >>> 24] ^ table1[d >> 16 & 255] ^ table2[a >> 8 & 255] ^ table3[b & 255] ^ key[kIndex + 2]; + d = table0[d >>> 24] ^ table1[a >> 16 & 255] ^ table2[b >> 8 & 255] ^ table3[c & 255] ^ key[kIndex + 3]; + kIndex += 4; + a = a2;b = b2;c = c2; + } + + // Last round. + for (i = 0; i < 4; i++) { + out[(3 & -i) + offset] = sbox[a >>> 24] << 24 ^ sbox[b >> 16 & 255] << 16 ^ sbox[c >> 8 & 255] << 8 ^ sbox[d & 255] ^ key[kIndex++]; + a2 = a;a = b;b = c;c = d;d = a2; + } + }; + + return AES; + }(); + + /** + * @file stream.js + */ + /** + * A lightweight readable stream implemention that handles event dispatching. + * + * @class Stream + */ + var Stream$2 = function () { + function Stream() { + classCallCheck(this, Stream); + + this.listeners = {}; + } + + /** + * Add a listener for a specified event type. + * + * @param {String} type the event name + * @param {Function} listener the callback to be invoked when an event of + * the specified type occurs + */ + + + Stream.prototype.on = function on(type, listener) { + if (!this.listeners[type]) { + this.listeners[type] = []; + } + this.listeners[type].push(listener); + }; + + /** + * Remove a listener for a specified event type. + * + * @param {String} type the event name + * @param {Function} listener a function previously registered for this + * type of event through `on` + * @return {Boolean} if we could turn it off or not + */ + + + Stream.prototype.off = function off(type, listener) { + if (!this.listeners[type]) { + return false; + } + + var index = this.listeners[type].indexOf(listener); + + this.listeners[type].splice(index, 1); + return index > -1; + }; + + /** + * Trigger an event of the specified type on this stream. Any additional + * arguments to this function are passed as parameters to event listeners. + * + * @param {String} type the event name + */ + + + Stream.prototype.trigger = function trigger(type) { + var callbacks = this.listeners[type]; + + if (!callbacks) { + return; + } + + // Slicing the arguments on every invocation of this method + // can add a significant amount of overhead. Avoid the + // intermediate object creation for the common case of a + // single callback argument + if (arguments.length === 2) { + var length = callbacks.length; + + for (var i = 0; i < length; ++i) { + callbacks[i].call(this, arguments[1]); + } + } else { + var args = Array.prototype.slice.call(arguments, 1); + var _length = callbacks.length; + + for (var _i = 0; _i < _length; ++_i) { + callbacks[_i].apply(this, args); + } + } + }; + + /** + * Destroys the stream and cleans up. + */ + + + Stream.prototype.dispose = function dispose() { + this.listeners = {}; + }; + /** + * Forwards all `data` events on this stream to the destination stream. The + * destination stream should provide a method `push` to receive the data + * events as they arrive. + * + * @param {Stream} destination the stream that will receive all `data` events + * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options + */ + + + Stream.prototype.pipe = function pipe(destination) { + this.on('data', function (data) { + destination.push(data); + }); + }; + + return Stream; + }(); + + /** + * @file async-stream.js + */ + /** + * A wrapper around the Stream class to use setTiemout + * and run stream "jobs" Asynchronously + * + * @class AsyncStream + * @extends Stream + */ + + var AsyncStream = function (_Stream) { + inherits$1(AsyncStream, _Stream); + + function AsyncStream() { + classCallCheck(this, AsyncStream); + + var _this = possibleConstructorReturn(this, _Stream.call(this, Stream$2)); + + _this.jobs = []; + _this.delay = 1; + _this.timeout_ = null; + return _this; + } + + /** + * process an async job + * + * @private + */ + + + AsyncStream.prototype.processJob_ = function processJob_() { + this.jobs.shift()(); + if (this.jobs.length) { + this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay); + } else { + this.timeout_ = null; + } + }; + + /** + * push a job into the stream + * + * @param {Function} job the job to push into the stream + */ + + + AsyncStream.prototype.push = function push(job) { + this.jobs.push(job); + if (!this.timeout_) { + this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay); + } + }; + + return AsyncStream; + }(Stream$2); + + /** + * @file decrypter.js + * + * An asynchronous implementation of AES-128 CBC decryption with + * PKCS#7 padding. + */ + + /** + * Convert network-order (big-endian) bytes into their little-endian + * representation. + */ + var ntoh = function ntoh(word) { + return word << 24 | (word & 0xff00) << 8 | (word & 0xff0000) >> 8 | word >>> 24; + }; + + /** + * Decrypt bytes using AES-128 with CBC and PKCS#7 padding. + * + * @param {Uint8Array} encrypted the encrypted bytes + * @param {Uint32Array} key the bytes of the decryption key + * @param {Uint32Array} initVector the initialization vector (IV) to + * use for the first round of CBC. + * @return {Uint8Array} the decrypted bytes + * + * @see http://en.wikipedia.org/wiki/Advanced_Encryption_Standard + * @see http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_Block_Chaining_.28CBC.29 + * @see https://tools.ietf.org/html/rfc2315 + */ + var decrypt = function decrypt(encrypted, key, initVector) { + // word-level access to the encrypted bytes + var encrypted32 = new Int32Array(encrypted.buffer, encrypted.byteOffset, encrypted.byteLength >> 2); + + var decipher = new AES(Array.prototype.slice.call(key)); + + // byte and word-level access for the decrypted output + var decrypted = new Uint8Array(encrypted.byteLength); + var decrypted32 = new Int32Array(decrypted.buffer); + + // temporary variables for working with the IV, encrypted, and + // decrypted data + var init0 = void 0; + var init1 = void 0; + var init2 = void 0; + var init3 = void 0; + var encrypted0 = void 0; + var encrypted1 = void 0; + var encrypted2 = void 0; + var encrypted3 = void 0; + + // iteration variable + var wordIx = void 0; + + // pull out the words of the IV to ensure we don't modify the + // passed-in reference and easier access + init0 = initVector[0]; + init1 = initVector[1]; + init2 = initVector[2]; + init3 = initVector[3]; + + // decrypt four word sequences, applying cipher-block chaining (CBC) + // to each decrypted block + for (wordIx = 0; wordIx < encrypted32.length; wordIx += 4) { + // convert big-endian (network order) words into little-endian + // (javascript order) + encrypted0 = ntoh(encrypted32[wordIx]); + encrypted1 = ntoh(encrypted32[wordIx + 1]); + encrypted2 = ntoh(encrypted32[wordIx + 2]); + encrypted3 = ntoh(encrypted32[wordIx + 3]); + + // decrypt the block + decipher.decrypt(encrypted0, encrypted1, encrypted2, encrypted3, decrypted32, wordIx); + + // XOR with the IV, and restore network byte-order to obtain the + // plaintext + decrypted32[wordIx] = ntoh(decrypted32[wordIx] ^ init0); + decrypted32[wordIx + 1] = ntoh(decrypted32[wordIx + 1] ^ init1); + decrypted32[wordIx + 2] = ntoh(decrypted32[wordIx + 2] ^ init2); + decrypted32[wordIx + 3] = ntoh(decrypted32[wordIx + 3] ^ init3); + + // setup the IV for the next round + init0 = encrypted0; + init1 = encrypted1; + init2 = encrypted2; + init3 = encrypted3; + } + + return decrypted; + }; + + /** + * The `Decrypter` class that manages decryption of AES + * data through `AsyncStream` objects and the `decrypt` + * function + * + * @param {Uint8Array} encrypted the encrypted bytes + * @param {Uint32Array} key the bytes of the decryption key + * @param {Uint32Array} initVector the initialization vector (IV) to + * @param {Function} done the function to run when done + * @class Decrypter + */ + + var Decrypter = function () { + function Decrypter(encrypted, key, initVector, done) { + classCallCheck(this, Decrypter); + + var step = Decrypter.STEP; + var encrypted32 = new Int32Array(encrypted.buffer); + var decrypted = new Uint8Array(encrypted.byteLength); + var i = 0; + + this.asyncStream_ = new AsyncStream(); + + // split up the encryption job and do the individual chunks asynchronously + this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted)); + for (i = step; i < encrypted32.length; i += step) { + initVector = new Uint32Array([ntoh(encrypted32[i - 4]), ntoh(encrypted32[i - 3]), ntoh(encrypted32[i - 2]), ntoh(encrypted32[i - 1])]); + this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted)); + } + // invoke the done() callback when everything is finished + this.asyncStream_.push(function () { + // remove pkcs#7 padding from the decrypted bytes + done(null, unpad(decrypted)); + }); + } + + /** + * a getter for step the maximum number of bytes to process at one time + * + * @return {Number} the value of step 32000 + */ + + + /** + * @private + */ + Decrypter.prototype.decryptChunk_ = function decryptChunk_(encrypted, key, initVector, decrypted) { + return function () { + var bytes = decrypt(encrypted, key, initVector); + + decrypted.set(bytes, encrypted.byteOffset); + }; + }; + + createClass(Decrypter, null, [{ + key: 'STEP', + get: function get$$1() { + // 4 * 8000; + return 32000; + } + }]); + return Decrypter; + }(); + + /** + * @license + * Video.js 7.8.2 + * Copyright Brightcove, Inc. + * Available under Apache License Version 2.0 + * + * + * Includes vtt.js + * Available under Apache License Version 2.0 + * + */ + + var version = "7.8.2"; + + /** + * @file create-logger.js + * @module create-logger + */ + + var history = []; + /** + * Log messages to the console and history based on the type of message + * + * @private + * @param {string} type + * The name of the console method to use. + * + * @param {Array} args + * The arguments to be passed to the matching console method. + */ + + var LogByTypeFactory = function LogByTypeFactory(name, log) { + return function (type, level, args) { + var lvl = log.levels[level]; + var lvlRegExp = new RegExp("^(" + lvl + ")$"); + + if (type !== 'log') { + // Add the type to the front of the message when it's not "log". + args.unshift(type.toUpperCase() + ':'); + } // Add console prefix after adding to history. + + + args.unshift(name + ':'); // Add a clone of the args at this point to history. + + if (history) { + history.push([].concat(args)); // only store 1000 history entries + + var splice = history.length - 1000; + history.splice(0, splice > 0 ? splice : 0); + } // If there's no console then don't try to output messages, but they will + // still be stored in history. + + + if (!window_1.console) { + return; + } // Was setting these once outside of this function, but containing them + // in the function makes it easier to test cases where console doesn't exist + // when the module is executed. + + + var fn = window_1.console[type]; + + if (!fn && type === 'debug') { + // Certain browsers don't have support for console.debug. For those, we + // should default to the closest comparable log. + fn = window_1.console.info || window_1.console.log; + } // Bail out if there's no console or if this type is not allowed by the + // current logging level. + + + if (!fn || !lvl || !lvlRegExp.test(type)) { + return; + } + + fn[Array.isArray(args) ? 'apply' : 'call'](window_1.console, args); + }; + }; + + function createLogger(name) { + // This is the private tracking variable for logging level. + var level = 'info'; // the curried logByType bound to the specific log and history + + var logByType; + /** + * Logs plain debug messages. Similar to `console.log`. + * + * Due to [limitations](https://github.com/jsdoc3/jsdoc/issues/955#issuecomment-313829149) + * of our JSDoc template, we cannot properly document this as both a function + * and a namespace, so its function signature is documented here. + * + * #### Arguments + * ##### *args + * Mixed[] + * + * Any combination of values that could be passed to `console.log()`. + * + * #### Return Value + * + * `undefined` + * + * @namespace + * @param {Mixed[]} args + * One or more messages or objects that should be logged. + */ + + var log = function log() { + for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) { + args[_key] = arguments[_key]; + } + + logByType('log', level, args); + }; // This is the logByType helper that the logging methods below use + + + logByType = LogByTypeFactory(name, log); + /** + * Create a new sublogger which chains the old name to the new name. + * + * For example, doing `videojs.log.createLogger('player')` and then using that logger will log the following: + * ```js + * mylogger('foo'); + * // > VIDEOJS: player: foo + * ``` + * + * @param {string} name + * The name to add call the new logger + * @return {Object} + */ + + log.createLogger = function (subname) { + return createLogger(name + ': ' + subname); + }; + /** + * Enumeration of available logging levels, where the keys are the level names + * and the values are `|`-separated strings containing logging methods allowed + * in that logging level. These strings are used to create a regular expression + * matching the function name being called. + * + * Levels provided by Video.js are: + * + * - `off`: Matches no calls. Any value that can be cast to `false` will have + * this effect. The most restrictive. + * - `all`: Matches only Video.js-provided functions (`debug`, `log`, + * `log.warn`, and `log.error`). + * - `debug`: Matches `log.debug`, `log`, `log.warn`, and `log.error` calls. + * - `info` (default): Matches `log`, `log.warn`, and `log.error` calls. + * - `warn`: Matches `log.warn` and `log.error` calls. + * - `error`: Matches only `log.error` calls. + * + * @type {Object} + */ + + + log.levels = { + all: 'debug|log|warn|error', + off: '', + debug: 'debug|log|warn|error', + info: 'log|warn|error', + warn: 'warn|error', + error: 'error', + DEFAULT: level + }; + /** + * Get or set the current logging level. + * + * If a string matching a key from {@link module:log.levels} is provided, acts + * as a setter. + * + * @param {string} [lvl] + * Pass a valid level to set a new logging level. + * + * @return {string} + * The current logging level. + */ + + log.level = function (lvl) { + if (typeof lvl === 'string') { + if (!log.levels.hasOwnProperty(lvl)) { + throw new Error("\"" + lvl + "\" in not a valid log level"); + } + + level = lvl; + } + + return level; + }; + /** + * Returns an array containing everything that has been logged to the history. + * + * This array is a shallow clone of the internal history record. However, its + * contents are _not_ cloned; so, mutating objects inside this array will + * mutate them in history. + * + * @return {Array} + */ + + + log.history = function () { + return history ? [].concat(history) : []; + }; + /** + * Allows you to filter the history by the given logger name + * + * @param {string} fname + * The name to filter by + * + * @return {Array} + * The filtered list to return + */ + + + log.history.filter = function (fname) { + return (history || []).filter(function (historyItem) { + // if the first item in each historyItem includes `fname`, then it's a match + return new RegExp(".*" + fname + ".*").test(historyItem[0]); + }); + }; + /** + * Clears the internal history tracking, but does not prevent further history + * tracking. + */ + + + log.history.clear = function () { + if (history) { + history.length = 0; + } + }; + /** + * Disable history tracking if it is currently enabled. + */ + + + log.history.disable = function () { + if (history !== null) { + history.length = 0; + history = null; + } + }; + /** + * Enable history tracking if it is currently disabled. + */ + + + log.history.enable = function () { + if (history === null) { + history = []; + } + }; + /** + * Logs error messages. Similar to `console.error`. + * + * @param {Mixed[]} args + * One or more messages or objects that should be logged as an error + */ + + + log.error = function () { + for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) { + args[_key2] = arguments[_key2]; + } + + return logByType('error', level, args); + }; + /** + * Logs warning messages. Similar to `console.warn`. + * + * @param {Mixed[]} args + * One or more messages or objects that should be logged as a warning. + */ + + + log.warn = function () { + for (var _len3 = arguments.length, args = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) { + args[_key3] = arguments[_key3]; + } + + return logByType('warn', level, args); + }; + /** + * Logs debug messages. Similar to `console.debug`, but may also act as a comparable + * log if `console.debug` is not available + * + * @param {Mixed[]} args + * One or more messages or objects that should be logged as debug. + */ + + + log.debug = function () { + for (var _len4 = arguments.length, args = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) { + args[_key4] = arguments[_key4]; + } + + return logByType('debug', level, args); + }; + + return log; + } + + /** + * @file log.js + * @module log + */ + var log = createLogger('VIDEOJS'); + var createLogger$1 = log.createLogger; + + /** + * @file obj.js + * @module obj + */ + + /** + * @callback obj:EachCallback + * + * @param {Mixed} value + * The current key for the object that is being iterated over. + * + * @param {string} key + * The current key-value for object that is being iterated over + */ + + /** + * @callback obj:ReduceCallback + * + * @param {Mixed} accum + * The value that is accumulating over the reduce loop. + * + * @param {Mixed} value + * The current key for the object that is being iterated over. + * + * @param {string} key + * The current key-value for object that is being iterated over + * + * @return {Mixed} + * The new accumulated value. + */ + var toString$1 = Object.prototype.toString; + /** + * Get the keys of an Object + * + * @param {Object} + * The Object to get the keys from + * + * @return {string[]} + * An array of the keys from the object. Returns an empty array if the + * object passed in was invalid or had no keys. + * + * @private + */ + + var keys = function keys(object) { + return isObject$1(object) ? Object.keys(object) : []; + }; + /** + * Array-like iteration for objects. + * + * @param {Object} object + * The object to iterate over + * + * @param {obj:EachCallback} fn + * The callback function which is called for each key in the object. + */ + + + function each(object, fn) { + keys(object).forEach(function (key) { + return fn(object[key], key); + }); + } + /** + * Array-like reduce for objects. + * + * @param {Object} object + * The Object that you want to reduce. + * + * @param {Function} fn + * A callback function which is called for each key in the object. It + * receives the accumulated value and the per-iteration value and key + * as arguments. + * + * @param {Mixed} [initial = 0] + * Starting value + * + * @return {Mixed} + * The final accumulated value. + */ + + function reduce(object, fn, initial) { + if (initial === void 0) { + initial = 0; + } + + return keys(object).reduce(function (accum, key) { + return fn(accum, object[key], key); + }, initial); + } + /** + * Object.assign-style object shallow merge/extend. + * + * @param {Object} target + * @param {Object} ...sources + * @return {Object} + */ + + function assign(target) { + for (var _len = arguments.length, sources = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) { + sources[_key - 1] = arguments[_key]; + } + + if (Object.assign) { + return _extends_1.apply(void 0, [target].concat(sources)); + } + + sources.forEach(function (source) { + if (!source) { + return; + } + + each(source, function (value, key) { + target[key] = value; + }); + }); + return target; + } + /** + * Returns whether a value is an object of any kind - including DOM nodes, + * arrays, regular expressions, etc. Not functions, though. + * + * This avoids the gotcha where using `typeof` on a `null` value + * results in `'object'`. + * + * @param {Object} value + * @return {boolean} + */ + + function isObject$1(value) { + return !!value && typeof value === 'object'; + } + /** + * Returns whether an object appears to be a "plain" object - that is, a + * direct instance of `Object`. + * + * @param {Object} value + * @return {boolean} + */ + + function isPlain(value) { + return isObject$1(value) && toString$1.call(value) === '[object Object]' && value.constructor === Object; + } + + /** + * @file computed-style.js + * @module computed-style + */ + /** + * A safe getComputedStyle. + * + * This is needed because in Firefox, if the player is loaded in an iframe with + * `display:none`, then `getComputedStyle` returns `null`, so, we do a + * null-check to make sure that the player doesn't break in these cases. + * + * @function + * @param {Element} el + * The element you want the computed style of + * + * @param {string} prop + * The property name you want + * + * @see https://bugzilla.mozilla.org/show_bug.cgi?id=548397 + */ + + function computedStyle(el, prop) { + if (!el || !prop) { + return ''; + } + + if (typeof window_1.getComputedStyle === 'function') { + var computedStyleValue = window_1.getComputedStyle(el); + return computedStyleValue ? computedStyleValue.getPropertyValue(prop) || computedStyleValue[prop] : ''; + } + + return ''; + } + + /** + * @file dom.js + * @module dom + */ + /** + * Detect if a value is a string with any non-whitespace characters. + * + * @private + * @param {string} str + * The string to check + * + * @return {boolean} + * Will be `true` if the string is non-blank, `false` otherwise. + * + */ + + function isNonBlankString(str) { + // we use str.trim as it will trim any whitespace characters + // from the front or back of non-whitespace characters. aka + // Any string that contains non-whitespace characters will + // still contain them after `trim` but whitespace only strings + // will have a length of 0, failing this check. + return typeof str === 'string' && Boolean(str.trim()); + } + /** + * Throws an error if the passed string has whitespace. This is used by + * class methods to be relatively consistent with the classList API. + * + * @private + * @param {string} str + * The string to check for whitespace. + * + * @throws {Error} + * Throws an error if there is whitespace in the string. + */ + + + function throwIfWhitespace(str) { + // str.indexOf instead of regex because str.indexOf is faster performance wise. + if (str.indexOf(' ') >= 0) { + throw new Error('class has illegal whitespace characters'); + } + } + /** + * Produce a regular expression for matching a className within an elements className. + * + * @private + * @param {string} className + * The className to generate the RegExp for. + * + * @return {RegExp} + * The RegExp that will check for a specific `className` in an elements + * className. + */ + + + function classRegExp(className) { + return new RegExp('(^|\\s)' + className + '($|\\s)'); + } + /** + * Whether the current DOM interface appears to be real (i.e. not simulated). + * + * @return {boolean} + * Will be `true` if the DOM appears to be real, `false` otherwise. + */ + + + function isReal() { + // Both document and window will never be undefined thanks to `global`. + return document_1 === window_1.document; + } + /** + * Determines, via duck typing, whether or not a value is a DOM element. + * + * @param {Mixed} value + * The value to check. + * + * @return {boolean} + * Will be `true` if the value is a DOM element, `false` otherwise. + */ + + function isEl(value) { + return isObject$1(value) && value.nodeType === 1; + } + /** + * Determines if the current DOM is embedded in an iframe. + * + * @return {boolean} + * Will be `true` if the DOM is embedded in an iframe, `false` + * otherwise. + */ + + function isInFrame() { + // We need a try/catch here because Safari will throw errors when attempting + // to get either `parent` or `self` + try { + return window_1.parent !== window_1.self; + } catch (x) { + return true; + } + } + /** + * Creates functions to query the DOM using a given method. + * + * @private + * @param {string} method + * The method to create the query with. + * + * @return {Function} + * The query method + */ + + function createQuerier(method) { + return function (selector, context) { + if (!isNonBlankString(selector)) { + return document_1[method](null); + } + + if (isNonBlankString(context)) { + context = document_1.querySelector(context); + } + + var ctx = isEl(context) ? context : document_1; + return ctx[method] && ctx[method](selector); + }; + } + /** + * Creates an element and applies properties, attributes, and inserts content. + * + * @param {string} [tagName='div'] + * Name of tag to be created. + * + * @param {Object} [properties={}] + * Element properties to be applied. + * + * @param {Object} [attributes={}] + * Element attributes to be applied. + * + * @param {module:dom~ContentDescriptor} content + * A content descriptor object. + * + * @return {Element} + * The element that was created. + */ + + + function createEl(tagName, properties, attributes, content) { + if (tagName === void 0) { + tagName = 'div'; + } + + if (properties === void 0) { + properties = {}; + } + + if (attributes === void 0) { + attributes = {}; + } + + var el = document_1.createElement(tagName); + Object.getOwnPropertyNames(properties).forEach(function (propName) { + var val = properties[propName]; // See #2176 + // We originally were accepting both properties and attributes in the + // same object, but that doesn't work so well. + + if (propName.indexOf('aria-') !== -1 || propName === 'role' || propName === 'type') { + log.warn('Setting attributes in the second argument of createEl()\n' + 'has been deprecated. Use the third argument instead.\n' + ("createEl(type, properties, attributes). Attempting to set " + propName + " to " + val + ".")); + el.setAttribute(propName, val); // Handle textContent since it's not supported everywhere and we have a + // method for it. + } else if (propName === 'textContent') { + textContent(el, val); + } else if (el[propName] !== val) { + el[propName] = val; + } + }); + Object.getOwnPropertyNames(attributes).forEach(function (attrName) { + el.setAttribute(attrName, attributes[attrName]); + }); + + if (content) { + appendContent(el, content); + } + + return el; + } + /** + * Injects text into an element, replacing any existing contents entirely. + * + * @param {Element} el + * The element to add text content into + * + * @param {string} text + * The text content to add. + * + * @return {Element} + * The element with added text content. + */ + + function textContent(el, text) { + if (typeof el.textContent === 'undefined') { + el.innerText = text; + } else { + el.textContent = text; + } + + return el; + } + /** + * Insert an element as the first child node of another + * + * @param {Element} child + * Element to insert + * + * @param {Element} parent + * Element to insert child into + */ + + function prependTo(child, parent) { + if (parent.firstChild) { + parent.insertBefore(child, parent.firstChild); + } else { + parent.appendChild(child); + } + } + /** + * Check if an element has a class name. + * + * @param {Element} element + * Element to check + * + * @param {string} classToCheck + * Class name to check for + * + * @return {boolean} + * Will be `true` if the element has a class, `false` otherwise. + * + * @throws {Error} + * Throws an error if `classToCheck` has white space. + */ + + function hasClass(element, classToCheck) { + throwIfWhitespace(classToCheck); + + if (element.classList) { + return element.classList.contains(classToCheck); + } + + return classRegExp(classToCheck).test(element.className); + } + /** + * Add a class name to an element. + * + * @param {Element} element + * Element to add class name to. + * + * @param {string} classToAdd + * Class name to add. + * + * @return {Element} + * The DOM element with the added class name. + */ + + function addClass(element, classToAdd) { + if (element.classList) { + element.classList.add(classToAdd); // Don't need to `throwIfWhitespace` here because `hasElClass` will do it + // in the case of classList not being supported. + } else if (!hasClass(element, classToAdd)) { + element.className = (element.className + ' ' + classToAdd).trim(); + } + + return element; + } + /** + * Remove a class name from an element. + * + * @param {Element} element + * Element to remove a class name from. + * + * @param {string} classToRemove + * Class name to remove + * + * @return {Element} + * The DOM element with class name removed. + */ + + function removeClass(element, classToRemove) { + if (element.classList) { + element.classList.remove(classToRemove); + } else { + throwIfWhitespace(classToRemove); + element.className = element.className.split(/\s+/).filter(function (c) { + return c !== classToRemove; + }).join(' '); + } + + return element; + } + /** + * The callback definition for toggleClass. + * + * @callback module:dom~PredicateCallback + * @param {Element} element + * The DOM element of the Component. + * + * @param {string} classToToggle + * The `className` that wants to be toggled + * + * @return {boolean|undefined} + * If `true` is returned, the `classToToggle` will be added to the + * `element`. If `false`, the `classToToggle` will be removed from + * the `element`. If `undefined`, the callback will be ignored. + */ + + /** + * Adds or removes a class name to/from an element depending on an optional + * condition or the presence/absence of the class name. + * + * @param {Element} element + * The element to toggle a class name on. + * + * @param {string} classToToggle + * The class that should be toggled. + * + * @param {boolean|module:dom~PredicateCallback} [predicate] + * See the return value for {@link module:dom~PredicateCallback} + * + * @return {Element} + * The element with a class that has been toggled. + */ + + function toggleClass(element, classToToggle, predicate) { + // This CANNOT use `classList` internally because IE11 does not support the + // second parameter to the `classList.toggle()` method! Which is fine because + // `classList` will be used by the add/remove functions. + var has = hasClass(element, classToToggle); + + if (typeof predicate === 'function') { + predicate = predicate(element, classToToggle); + } + + if (typeof predicate !== 'boolean') { + predicate = !has; + } // If the necessary class operation matches the current state of the + // element, no action is required. + + + if (predicate === has) { + return; + } + + if (predicate) { + addClass(element, classToToggle); + } else { + removeClass(element, classToToggle); + } + + return element; + } + /** + * Apply attributes to an HTML element. + * + * @param {Element} el + * Element to add attributes to. + * + * @param {Object} [attributes] + * Attributes to be applied. + */ + + function setAttributes(el, attributes) { + Object.getOwnPropertyNames(attributes).forEach(function (attrName) { + var attrValue = attributes[attrName]; + + if (attrValue === null || typeof attrValue === 'undefined' || attrValue === false) { + el.removeAttribute(attrName); + } else { + el.setAttribute(attrName, attrValue === true ? '' : attrValue); + } + }); + } + /** + * Get an element's attribute values, as defined on the HTML tag. + * + * Attributes are not the same as properties. They're defined on the tag + * or with setAttribute. + * + * @param {Element} tag + * Element from which to get tag attributes. + * + * @return {Object} + * All attributes of the element. Boolean attributes will be `true` or + * `false`, others will be strings. + */ + + function getAttributes(tag) { + var obj = {}; // known boolean attributes + // we can check for matching boolean properties, but not all browsers + // and not all tags know about these attributes, so, we still want to check them manually + + var knownBooleans = ',' + 'autoplay,controls,playsinline,loop,muted,default,defaultMuted' + ','; + + if (tag && tag.attributes && tag.attributes.length > 0) { + var attrs = tag.attributes; + + for (var i = attrs.length - 1; i >= 0; i--) { + var attrName = attrs[i].name; + var attrVal = attrs[i].value; // check for known booleans + // the matching element property will return a value for typeof + + if (typeof tag[attrName] === 'boolean' || knownBooleans.indexOf(',' + attrName + ',') !== -1) { + // the value of an included boolean attribute is typically an empty + // string ('') which would equal false if we just check for a false value. + // we also don't want support bad code like autoplay='false' + attrVal = attrVal !== null ? true : false; + } + + obj[attrName] = attrVal; + } + } + + return obj; + } + /** + * Get the value of an element's attribute. + * + * @param {Element} el + * A DOM element. + * + * @param {string} attribute + * Attribute to get the value of. + * + * @return {string} + * The value of the attribute. + */ + + function getAttribute(el, attribute) { + return el.getAttribute(attribute); + } + /** + * Set the value of an element's attribute. + * + * @param {Element} el + * A DOM element. + * + * @param {string} attribute + * Attribute to set. + * + * @param {string} value + * Value to set the attribute to. + */ + + function setAttribute(el, attribute, value) { + el.setAttribute(attribute, value); + } + /** + * Remove an element's attribute. + * + * @param {Element} el + * A DOM element. + * + * @param {string} attribute + * Attribute to remove. + */ + + function removeAttribute(el, attribute) { + el.removeAttribute(attribute); + } + /** + * Attempt to block the ability to select text. + */ + + function blockTextSelection() { + document_1.body.focus(); + + document_1.onselectstart = function () { + return false; + }; + } + /** + * Turn off text selection blocking. + */ + + function unblockTextSelection() { + document_1.onselectstart = function () { + return true; + }; + } + /** + * Identical to the native `getBoundingClientRect` function, but ensures that + * the method is supported at all (it is in all browsers we claim to support) + * and that the element is in the DOM before continuing. + * + * This wrapper function also shims properties which are not provided by some + * older browsers (namely, IE8). + * + * Additionally, some browsers do not support adding properties to a + * `ClientRect`/`DOMRect` object; so, we shallow-copy it with the standard + * properties (except `x` and `y` which are not widely supported). This helps + * avoid implementations where keys are non-enumerable. + * + * @param {Element} el + * Element whose `ClientRect` we want to calculate. + * + * @return {Object|undefined} + * Always returns a plain object - or `undefined` if it cannot. + */ + + function getBoundingClientRect(el) { + if (el && el.getBoundingClientRect && el.parentNode) { + var rect = el.getBoundingClientRect(); + var result = {}; + ['bottom', 'height', 'left', 'right', 'top', 'width'].forEach(function (k) { + if (rect[k] !== undefined) { + result[k] = rect[k]; + } + }); + + if (!result.height) { + result.height = parseFloat(computedStyle(el, 'height')); + } + + if (!result.width) { + result.width = parseFloat(computedStyle(el, 'width')); + } + + return result; + } + } + /** + * Represents the position of a DOM element on the page. + * + * @typedef {Object} module:dom~Position + * + * @property {number} left + * Pixels to the left. + * + * @property {number} top + * Pixels from the top. + */ + + /** + * Get the position of an element in the DOM. + * + * Uses `getBoundingClientRect` technique from John Resig. + * + * @see http://ejohn.org/blog/getboundingclientrect-is-awesome/ + * + * @param {Element} el + * Element from which to get offset. + * + * @return {module:dom~Position} + * The position of the element that was passed in. + */ + + function findPosition(el) { + var box; + + if (el.getBoundingClientRect && el.parentNode) { + box = el.getBoundingClientRect(); + } + + if (!box) { + return { + left: 0, + top: 0 + }; + } + + var docEl = document_1.documentElement; + var body = document_1.body; + var clientLeft = docEl.clientLeft || body.clientLeft || 0; + var scrollLeft = window_1.pageXOffset || body.scrollLeft; + var left = box.left + scrollLeft - clientLeft; + var clientTop = docEl.clientTop || body.clientTop || 0; + var scrollTop = window_1.pageYOffset || body.scrollTop; + var top = box.top + scrollTop - clientTop; // Android sometimes returns slightly off decimal values, so need to round + + return { + left: Math.round(left), + top: Math.round(top) + }; + } + /** + * Represents x and y coordinates for a DOM element or mouse pointer. + * + * @typedef {Object} module:dom~Coordinates + * + * @property {number} x + * x coordinate in pixels + * + * @property {number} y + * y coordinate in pixels + */ + + /** + * Get the pointer position within an element. + * + * The base on the coordinates are the bottom left of the element. + * + * @param {Element} el + * Element on which to get the pointer position on. + * + * @param {EventTarget~Event} event + * Event object. + * + * @return {module:dom~Coordinates} + * A coordinates object corresponding to the mouse position. + * + */ + + function getPointerPosition(el, event) { + var position = {}; + var box = findPosition(el); + var boxW = el.offsetWidth; + var boxH = el.offsetHeight; + var boxY = box.top; + var boxX = box.left; + var pageY = event.pageY; + var pageX = event.pageX; + + if (event.changedTouches) { + pageX = event.changedTouches[0].pageX; + pageY = event.changedTouches[0].pageY; + } + + position.y = Math.max(0, Math.min(1, (boxY - pageY + boxH) / boxH)); + position.x = Math.max(0, Math.min(1, (pageX - boxX) / boxW)); + return position; + } + /** + * Determines, via duck typing, whether or not a value is a text node. + * + * @param {Mixed} value + * Check if this value is a text node. + * + * @return {boolean} + * Will be `true` if the value is a text node, `false` otherwise. + */ + + function isTextNode(value) { + return isObject$1(value) && value.nodeType === 3; + } + /** + * Empties the contents of an element. + * + * @param {Element} el + * The element to empty children from + * + * @return {Element} + * The element with no children + */ + + function emptyEl(el) { + while (el.firstChild) { + el.removeChild(el.firstChild); + } + + return el; + } + /** + * This is a mixed value that describes content to be injected into the DOM + * via some method. It can be of the following types: + * + * Type | Description + * -----------|------------- + * `string` | The value will be normalized into a text node. + * `Element` | The value will be accepted as-is. + * `TextNode` | The value will be accepted as-is. + * `Array` | A one-dimensional array of strings, elements, text nodes, or functions. These functions should return a string, element, or text node (any other return value, like an array, will be ignored). + * `Function` | A function, which is expected to return a string, element, text node, or array - any of the other possible values described above. This means that a content descriptor could be a function that returns an array of functions, but those second-level functions must return strings, elements, or text nodes. + * + * @typedef {string|Element|TextNode|Array|Function} module:dom~ContentDescriptor + */ + + /** + * Normalizes content for eventual insertion into the DOM. + * + * This allows a wide range of content definition methods, but helps protect + * from falling into the trap of simply writing to `innerHTML`, which could + * be an XSS concern. + * + * The content for an element can be passed in multiple types and + * combinations, whose behavior is as follows: + * + * @param {module:dom~ContentDescriptor} content + * A content descriptor value. + * + * @return {Array} + * All of the content that was passed in, normalized to an array of + * elements or text nodes. + */ + + function normalizeContent(content) { + // First, invoke content if it is a function. If it produces an array, + // that needs to happen before normalization. + if (typeof content === 'function') { + content = content(); + } // Next up, normalize to an array, so one or many items can be normalized, + // filtered, and returned. + + + return (Array.isArray(content) ? content : [content]).map(function (value) { + // First, invoke value if it is a function to produce a new value, + // which will be subsequently normalized to a Node of some kind. + if (typeof value === 'function') { + value = value(); + } + + if (isEl(value) || isTextNode(value)) { + return value; + } + + if (typeof value === 'string' && /\S/.test(value)) { + return document_1.createTextNode(value); + } + }).filter(function (value) { + return value; + }); + } + /** + * Normalizes and appends content to an element. + * + * @param {Element} el + * Element to append normalized content to. + * + * @param {module:dom~ContentDescriptor} content + * A content descriptor value. + * + * @return {Element} + * The element with appended normalized content. + */ + + function appendContent(el, content) { + normalizeContent(content).forEach(function (node) { + return el.appendChild(node); + }); + return el; + } + /** + * Normalizes and inserts content into an element; this is identical to + * `appendContent()`, except it empties the element first. + * + * @param {Element} el + * Element to insert normalized content into. + * + * @param {module:dom~ContentDescriptor} content + * A content descriptor value. + * + * @return {Element} + * The element with inserted normalized content. + */ + + function insertContent(el, content) { + return appendContent(emptyEl(el), content); + } + /** + * Check if an event was a single left click. + * + * @param {EventTarget~Event} event + * Event object. + * + * @return {boolean} + * Will be `true` if a single left click, `false` otherwise. + */ + + function isSingleLeftClick(event) { + // Note: if you create something draggable, be sure to + // call it on both `mousedown` and `mousemove` event, + // otherwise `mousedown` should be enough for a button + if (event.button === undefined && event.buttons === undefined) { + // Why do we need `buttons` ? + // Because, middle mouse sometimes have this: + // e.button === 0 and e.buttons === 4 + // Furthermore, we want to prevent combination click, something like + // HOLD middlemouse then left click, that would be + // e.button === 0, e.buttons === 5 + // just `button` is not gonna work + // Alright, then what this block does ? + // this is for chrome `simulate mobile devices` + // I want to support this as well + return true; + } + + if (event.button === 0 && event.buttons === undefined) { + // Touch screen, sometimes on some specific device, `buttons` + // doesn't have anything (safari on ios, blackberry...) + return true; + } // `mouseup` event on a single left click has + // `button` and `buttons` equal to 0 + + + if (event.type === 'mouseup' && event.button === 0 && event.buttons === 0) { + return true; + } + + if (event.button !== 0 || event.buttons !== 1) { + // This is the reason we have those if else block above + // if any special case we can catch and let it slide + // we do it above, when get to here, this definitely + // is-not-left-click + return false; + } + + return true; + } + /** + * Finds a single DOM element matching `selector` within the optional + * `context` of another DOM element (defaulting to `document`). + * + * @param {string} selector + * A valid CSS selector, which will be passed to `querySelector`. + * + * @param {Element|String} [context=document] + * A DOM element within which to query. Can also be a selector + * string in which case the first matching element will be used + * as context. If missing (or no element matches selector), falls + * back to `document`. + * + * @return {Element|null} + * The element that was found or null. + */ + + var $ = createQuerier('querySelector'); + /** + * Finds a all DOM elements matching `selector` within the optional + * `context` of another DOM element (defaulting to `document`). + * + * @param {string} selector + * A valid CSS selector, which will be passed to `querySelectorAll`. + * + * @param {Element|String} [context=document] + * A DOM element within which to query. Can also be a selector + * string in which case the first matching element will be used + * as context. If missing (or no element matches selector), falls + * back to `document`. + * + * @return {NodeList} + * A element list of elements that were found. Will be empty if none + * were found. + * + */ + + var $$ = createQuerier('querySelectorAll'); + + var Dom = /*#__PURE__*/Object.freeze({ + __proto__: null, + isReal: isReal, + isEl: isEl, + isInFrame: isInFrame, + createEl: createEl, + textContent: textContent, + prependTo: prependTo, + hasClass: hasClass, + addClass: addClass, + removeClass: removeClass, + toggleClass: toggleClass, + setAttributes: setAttributes, + getAttributes: getAttributes, + getAttribute: getAttribute, + setAttribute: setAttribute, + removeAttribute: removeAttribute, + blockTextSelection: blockTextSelection, + unblockTextSelection: unblockTextSelection, + getBoundingClientRect: getBoundingClientRect, + findPosition: findPosition, + getPointerPosition: getPointerPosition, + isTextNode: isTextNode, + emptyEl: emptyEl, + normalizeContent: normalizeContent, + appendContent: appendContent, + insertContent: insertContent, + isSingleLeftClick: isSingleLeftClick, + $: $, + $$: $$ + }); + + /** + * @file setup.js - Functions for setting up a player without + * user interaction based on the data-setup `attribute` of the video tag. + * + * @module setup + */ + var _windowLoaded = false; + var videojs; + /** + * Set up any tags that have a data-setup `attribute` when the player is started. + */ + + var autoSetup = function autoSetup() { + // Protect against breakage in non-browser environments and check global autoSetup option. + if (!isReal() || videojs.options.autoSetup === false) { + return; + } + + var vids = Array.prototype.slice.call(document_1.getElementsByTagName('video')); + var audios = Array.prototype.slice.call(document_1.getElementsByTagName('audio')); + var divs = Array.prototype.slice.call(document_1.getElementsByTagName('video-js')); + var mediaEls = vids.concat(audios, divs); // Check if any media elements exist + + if (mediaEls && mediaEls.length > 0) { + for (var i = 0, e = mediaEls.length; i < e; i++) { + var mediaEl = mediaEls[i]; // Check if element exists, has getAttribute func. + + if (mediaEl && mediaEl.getAttribute) { + // Make sure this player hasn't already been set up. + if (mediaEl.player === undefined) { + var options = mediaEl.getAttribute('data-setup'); // Check if data-setup attr exists. + // We only auto-setup if they've added the data-setup attr. + + if (options !== null) { + // Create new video.js instance. + videojs(mediaEl); + } + } // If getAttribute isn't defined, we need to wait for the DOM. + + } else { + autoSetupTimeout(1); + break; + } + } // No videos were found, so keep looping unless page is finished loading. + + } else if (!_windowLoaded) { + autoSetupTimeout(1); + } + }; + /** + * Wait until the page is loaded before running autoSetup. This will be called in + * autoSetup if `hasLoaded` returns false. + * + * @param {number} wait + * How long to wait in ms + * + * @param {module:videojs} [vjs] + * The videojs library function + */ + + + function autoSetupTimeout(wait, vjs) { + if (vjs) { + videojs = vjs; + } + + window_1.setTimeout(autoSetup, wait); + } + /** + * Used to set the internal tracking of window loaded state to true. + * + * @private + */ + + + function setWindowLoaded() { + _windowLoaded = true; + window_1.removeEventListener('load', setWindowLoaded); + } + + if (isReal()) { + if (document_1.readyState === 'complete') { + setWindowLoaded(); + } else { + /** + * Listen for the load event on window, and set _windowLoaded to true. + * + * We use a standard event listener here to avoid incrementing the GUID + * before any players are created. + * + * @listens load + */ + window_1.addEventListener('load', setWindowLoaded); + } + } + + /** + * @file stylesheet.js + * @module stylesheet + */ + /** + * Create a DOM syle element given a className for it. + * + * @param {string} className + * The className to add to the created style element. + * + * @return {Element} + * The element that was created. + */ + + var createStyleElement = function createStyleElement(className) { + var style = document_1.createElement('style'); + style.className = className; + return style; + }; + /** + * Add text to a DOM element. + * + * @param {Element} el + * The Element to add text content to. + * + * @param {string} content + * The text to add to the element. + */ + + var setTextContent = function setTextContent(el, content) { + if (el.styleSheet) { + el.styleSheet.cssText = content; + } else { + el.textContent = content; + } + }; + + /** + * @file guid.js + * @module guid + */ + // Default value for GUIDs. This allows us to reset the GUID counter in tests. + // + // The initial GUID is 3 because some users have come to rely on the first + // default player ID ending up as `vjs_video_3`. + // + // See: https://github.com/videojs/video.js/pull/6216 + var _initialGuid = 3; + /** + * Unique ID for an element or function + * + * @type {Number} + */ + + var _guid = _initialGuid; + /** + * Get a unique auto-incrementing ID by number that has not been returned before. + * + * @return {number} + * A new unique ID. + */ + + function newGUID() { + return _guid++; + } + + /** + * @file dom-data.js + * @module dom-data + */ + var FakeWeakMap; + + if (!window_1.WeakMap) { + FakeWeakMap = /*#__PURE__*/function () { + function FakeWeakMap() { + this.vdata = 'vdata' + Math.floor(window_1.performance && window_1.performance.now() || Date.now()); + this.data = {}; + } + + var _proto = FakeWeakMap.prototype; + + _proto.set = function set(key, value) { + var access = key[this.vdata] || newGUID(); + + if (!key[this.vdata]) { + key[this.vdata] = access; + } + + this.data[access] = value; + return this; + }; + + _proto.get = function get(key) { + var access = key[this.vdata]; // we have data, return it + + if (access) { + return this.data[access]; + } // we don't have data, return nothing. + // return undefined explicitly as that's the contract for this method + + + log('We have no data for this element', key); + return undefined; + }; + + _proto.has = function has(key) { + var access = key[this.vdata]; + return access in this.data; + }; + + _proto["delete"] = function _delete(key) { + var access = key[this.vdata]; + + if (access) { + delete this.data[access]; + delete key[this.vdata]; + } + }; + + return FakeWeakMap; + }(); + } + /** + * Element Data Store. + * + * Allows for binding data to an element without putting it directly on the + * element. Ex. Event listeners are stored here. + * (also from jsninja.com, slightly modified and updated for closure compiler) + * + * @type {Object} + * @private + */ + + + var DomData = window_1.WeakMap ? new WeakMap() : new FakeWeakMap(); + + /** + * @file events.js. An Event System (John Resig - Secrets of a JS Ninja http://jsninja.com/) + * (Original book version wasn't completely usable, so fixed some things and made Closure Compiler compatible) + * This should work very similarly to jQuery's events, however it's based off the book version which isn't as + * robust as jquery's, so there's probably some differences. + * + * @file events.js + * @module events + */ + /** + * Clean up the listener cache and dispatchers + * + * @param {Element|Object} elem + * Element to clean up + * + * @param {string} type + * Type of event to clean up + */ + + function _cleanUpEvents(elem, type) { + if (!DomData.has(elem)) { + return; + } + + var data = DomData.get(elem); // Remove the events of a particular type if there are none left + + if (data.handlers[type].length === 0) { + delete data.handlers[type]; // data.handlers[type] = null; + // Setting to null was causing an error with data.handlers + // Remove the meta-handler from the element + + if (elem.removeEventListener) { + elem.removeEventListener(type, data.dispatcher, false); + } else if (elem.detachEvent) { + elem.detachEvent('on' + type, data.dispatcher); + } + } // Remove the events object if there are no types left + + + if (Object.getOwnPropertyNames(data.handlers).length <= 0) { + delete data.handlers; + delete data.dispatcher; + delete data.disabled; + } // Finally remove the element data if there is no data left + + + if (Object.getOwnPropertyNames(data).length === 0) { + DomData["delete"](elem); + } + } + /** + * Loops through an array of event types and calls the requested method for each type. + * + * @param {Function} fn + * The event method we want to use. + * + * @param {Element|Object} elem + * Element or object to bind listeners to + * + * @param {string} type + * Type of event to bind to. + * + * @param {EventTarget~EventListener} callback + * Event listener. + */ + + + function _handleMultipleEvents(fn, elem, types, callback) { + types.forEach(function (type) { + // Call the event method for each one of the types + fn(elem, type, callback); + }); + } + /** + * Fix a native event to have standard property values + * + * @param {Object} event + * Event object to fix. + * + * @return {Object} + * Fixed event object. + */ + + + function fixEvent(event) { + if (event.fixed_) { + return event; + } + + function returnTrue() { + return true; + } + + function returnFalse() { + return false; + } // Test if fixing up is needed + // Used to check if !event.stopPropagation instead of isPropagationStopped + // But native events return true for stopPropagation, but don't have + // other expected methods like isPropagationStopped. Seems to be a problem + // with the Javascript Ninja code. So we're just overriding all events now. + + + if (!event || !event.isPropagationStopped) { + var old = event || window_1.event; + event = {}; // Clone the old object so that we can modify the values event = {}; + // IE8 Doesn't like when you mess with native event properties + // Firefox returns false for event.hasOwnProperty('type') and other props + // which makes copying more difficult. + // TODO: Probably best to create a whitelist of event props + + for (var key in old) { + // Safari 6.0.3 warns you if you try to copy deprecated layerX/Y + // Chrome warns you if you try to copy deprecated keyboardEvent.keyLocation + // and webkitMovementX/Y + if (key !== 'layerX' && key !== 'layerY' && key !== 'keyLocation' && key !== 'webkitMovementX' && key !== 'webkitMovementY') { + // Chrome 32+ warns if you try to copy deprecated returnValue, but + // we still want to if preventDefault isn't supported (IE8). + if (!(key === 'returnValue' && old.preventDefault)) { + event[key] = old[key]; + } + } + } // The event occurred on this element + + + if (!event.target) { + event.target = event.srcElement || document_1; + } // Handle which other element the event is related to + + + if (!event.relatedTarget) { + event.relatedTarget = event.fromElement === event.target ? event.toElement : event.fromElement; + } // Stop the default browser action + + + event.preventDefault = function () { + if (old.preventDefault) { + old.preventDefault(); + } + + event.returnValue = false; + old.returnValue = false; + event.defaultPrevented = true; + }; + + event.defaultPrevented = false; // Stop the event from bubbling + + event.stopPropagation = function () { + if (old.stopPropagation) { + old.stopPropagation(); + } + + event.cancelBubble = true; + old.cancelBubble = true; + event.isPropagationStopped = returnTrue; + }; + + event.isPropagationStopped = returnFalse; // Stop the event from bubbling and executing other handlers + + event.stopImmediatePropagation = function () { + if (old.stopImmediatePropagation) { + old.stopImmediatePropagation(); + } + + event.isImmediatePropagationStopped = returnTrue; + event.stopPropagation(); + }; + + event.isImmediatePropagationStopped = returnFalse; // Handle mouse position + + if (event.clientX !== null && event.clientX !== undefined) { + var doc = document_1.documentElement; + var body = document_1.body; + event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc && doc.clientLeft || body && body.clientLeft || 0); + event.pageY = event.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc && doc.clientTop || body && body.clientTop || 0); + } // Handle key presses + + + event.which = event.charCode || event.keyCode; // Fix button for mouse clicks: + // 0 == left; 1 == middle; 2 == right + + if (event.button !== null && event.button !== undefined) { + // The following is disabled because it does not pass videojs-standard + // and... yikes. + + /* eslint-disable */ + event.button = event.button & 1 ? 0 : event.button & 4 ? 1 : event.button & 2 ? 2 : 0; + /* eslint-enable */ + } + } + + event.fixed_ = true; // Returns fixed-up instance + + return event; + } + /** + * Whether passive event listeners are supported + */ + + var _supportsPassive; + + var supportsPassive = function supportsPassive() { + if (typeof _supportsPassive !== 'boolean') { + _supportsPassive = false; + + try { + var opts = Object.defineProperty({}, 'passive', { + get: function get() { + _supportsPassive = true; + } + }); + window_1.addEventListener('test', null, opts); + window_1.removeEventListener('test', null, opts); + } catch (e) {// disregard + } + } + + return _supportsPassive; + }; + /** + * Touch events Chrome expects to be passive + */ + + + var passiveEvents = ['touchstart', 'touchmove']; + /** + * Add an event listener to element + * It stores the handler function in a separate cache object + * and adds a generic handler to the element's event, + * along with a unique id (guid) to the element. + * + * @param {Element|Object} elem + * Element or object to bind listeners to + * + * @param {string|string[]} type + * Type of event to bind to. + * + * @param {EventTarget~EventListener} fn + * Event listener. + */ + + function on(elem, type, fn) { + if (Array.isArray(type)) { + return _handleMultipleEvents(on, elem, type, fn); + } + + if (!DomData.has(elem)) { + DomData.set(elem, {}); + } + + var data = DomData.get(elem); // We need a place to store all our handler data + + if (!data.handlers) { + data.handlers = {}; + } + + if (!data.handlers[type]) { + data.handlers[type] = []; + } + + if (!fn.guid) { + fn.guid = newGUID(); + } + + data.handlers[type].push(fn); + + if (!data.dispatcher) { + data.disabled = false; + + data.dispatcher = function (event, hash) { + if (data.disabled) { + return; + } + + event = fixEvent(event); + var handlers = data.handlers[event.type]; + + if (handlers) { + // Copy handlers so if handlers are added/removed during the process it doesn't throw everything off. + var handlersCopy = handlers.slice(0); + + for (var m = 0, n = handlersCopy.length; m < n; m++) { + if (event.isImmediatePropagationStopped()) { + break; + } else { + try { + handlersCopy[m].call(elem, event, hash); + } catch (e) { + log.error(e); + } + } + } + } + }; + } + + if (data.handlers[type].length === 1) { + if (elem.addEventListener) { + var options = false; + + if (supportsPassive() && passiveEvents.indexOf(type) > -1) { + options = { + passive: true + }; + } + + elem.addEventListener(type, data.dispatcher, options); + } else if (elem.attachEvent) { + elem.attachEvent('on' + type, data.dispatcher); + } + } + } + /** + * Removes event listeners from an element + * + * @param {Element|Object} elem + * Object to remove listeners from. + * + * @param {string|string[]} [type] + * Type of listener to remove. Don't include to remove all events from element. + * + * @param {EventTarget~EventListener} [fn] + * Specific listener to remove. Don't include to remove listeners for an event + * type. + */ + + function off(elem, type, fn) { + // Don't want to add a cache object through getElData if not needed + if (!DomData.has(elem)) { + return; + } + + var data = DomData.get(elem); // If no events exist, nothing to unbind + + if (!data.handlers) { + return; + } + + if (Array.isArray(type)) { + return _handleMultipleEvents(off, elem, type, fn); + } // Utility function + + + var removeType = function removeType(el, t) { + data.handlers[t] = []; + + _cleanUpEvents(el, t); + }; // Are we removing all bound events? + + + if (type === undefined) { + for (var t in data.handlers) { + if (Object.prototype.hasOwnProperty.call(data.handlers || {}, t)) { + removeType(elem, t); + } + } + + return; + } + + var handlers = data.handlers[type]; // If no handlers exist, nothing to unbind + + if (!handlers) { + return; + } // If no listener was provided, remove all listeners for type + + + if (!fn) { + removeType(elem, type); + return; + } // We're only removing a single handler + + + if (fn.guid) { + for (var n = 0; n < handlers.length; n++) { + if (handlers[n].guid === fn.guid) { + handlers.splice(n--, 1); + } + } + } + + _cleanUpEvents(elem, type); + } + /** + * Trigger an event for an element + * + * @param {Element|Object} elem + * Element to trigger an event on + * + * @param {EventTarget~Event|string} event + * A string (the type) or an event object with a type attribute + * + * @param {Object} [hash] + * data hash to pass along with the event + * + * @return {boolean|undefined} + * Returns the opposite of `defaultPrevented` if default was + * prevented. Otherwise, returns `undefined` + */ + + function trigger(elem, event, hash) { + // Fetches element data and a reference to the parent (for bubbling). + // Don't want to add a data object to cache for every parent, + // so checking hasElData first. + var elemData = DomData.has(elem) ? DomData.get(elem) : {}; + var parent = elem.parentNode || elem.ownerDocument; // type = event.type || event, + // handler; + // If an event name was passed as a string, creates an event out of it + + if (typeof event === 'string') { + event = { + type: event, + target: elem + }; + } else if (!event.target) { + event.target = elem; + } // Normalizes the event properties. + + + event = fixEvent(event); // If the passed element has a dispatcher, executes the established handlers. + + if (elemData.dispatcher) { + elemData.dispatcher.call(elem, event, hash); + } // Unless explicitly stopped or the event does not bubble (e.g. media events) + // recursively calls this function to bubble the event up the DOM. + + + if (parent && !event.isPropagationStopped() && event.bubbles === true) { + trigger.call(null, parent, event, hash); // If at the top of the DOM, triggers the default action unless disabled. + } else if (!parent && !event.defaultPrevented && event.target && event.target[event.type]) { + if (!DomData.has(event.target)) { + DomData.set(event.target, {}); + } + + var targetData = DomData.get(event.target); // Checks if the target has a default action for this event. + + if (event.target[event.type]) { + // Temporarily disables event dispatching on the target as we have already executed the handler. + targetData.disabled = true; // Executes the default action. + + if (typeof event.target[event.type] === 'function') { + event.target[event.type](); + } // Re-enables event dispatching. + + + targetData.disabled = false; + } + } // Inform the triggerer if the default was prevented by returning false + + + return !event.defaultPrevented; + } + /** + * Trigger a listener only once for an event. + * + * @param {Element|Object} elem + * Element or object to bind to. + * + * @param {string|string[]} type + * Name/type of event + * + * @param {Event~EventListener} fn + * Event listener function + */ + + function one(elem, type, fn) { + if (Array.isArray(type)) { + return _handleMultipleEvents(one, elem, type, fn); + } + + var func = function func() { + off(elem, type, func); + fn.apply(this, arguments); + }; // copy the guid to the new function so it can removed using the original function's ID + + + func.guid = fn.guid = fn.guid || newGUID(); + on(elem, type, func); + } + /** + * Trigger a listener only once and then turn if off for all + * configured events + * + * @param {Element|Object} elem + * Element or object to bind to. + * + * @param {string|string[]} type + * Name/type of event + * + * @param {Event~EventListener} fn + * Event listener function + */ + + function any(elem, type, fn) { + var func = function func() { + off(elem, type, func); + fn.apply(this, arguments); + }; // copy the guid to the new function so it can removed using the original function's ID + + + func.guid = fn.guid = fn.guid || newGUID(); // multiple ons, but one off for everything + + on(elem, type, func); + } + + var Events = /*#__PURE__*/Object.freeze({ + __proto__: null, + fixEvent: fixEvent, + on: on, + off: off, + trigger: trigger, + one: one, + any: any + }); + + /** + * @file fn.js + * @module fn + */ + var UPDATE_REFRESH_INTERVAL = 30; + /** + * Bind (a.k.a proxy or context). A simple method for changing the context of + * a function. + * + * It also stores a unique id on the function so it can be easily removed from + * events. + * + * @function + * @param {Mixed} context + * The object to bind as scope. + * + * @param {Function} fn + * The function to be bound to a scope. + * + * @param {number} [uid] + * An optional unique ID for the function to be set + * + * @return {Function} + * The new function that will be bound into the context given + */ + + var bind = function bind(context, fn, uid) { + // Make sure the function has a unique ID + if (!fn.guid) { + fn.guid = newGUID(); + } // Create the new function that changes the context + + + var bound = fn.bind(context); // Allow for the ability to individualize this function + // Needed in the case where multiple objects might share the same prototype + // IF both items add an event listener with the same function, then you try to remove just one + // it will remove both because they both have the same guid. + // when using this, you need to use the bind method when you remove the listener as well. + // currently used in text tracks + + bound.guid = uid ? uid + '_' + fn.guid : fn.guid; + return bound; + }; + /** + * Wraps the given function, `fn`, with a new function that only invokes `fn` + * at most once per every `wait` milliseconds. + * + * @function + * @param {Function} fn + * The function to be throttled. + * + * @param {number} wait + * The number of milliseconds by which to throttle. + * + * @return {Function} + */ + + var throttle = function throttle(fn, wait) { + var last = window_1.performance.now(); + + var throttled = function throttled() { + var now = window_1.performance.now(); + + if (now - last >= wait) { + fn.apply(void 0, arguments); + last = now; + } + }; + + return throttled; + }; + /** + * Creates a debounced function that delays invoking `func` until after `wait` + * milliseconds have elapsed since the last time the debounced function was + * invoked. + * + * Inspired by lodash and underscore implementations. + * + * @function + * @param {Function} func + * The function to wrap with debounce behavior. + * + * @param {number} wait + * The number of milliseconds to wait after the last invocation. + * + * @param {boolean} [immediate] + * Whether or not to invoke the function immediately upon creation. + * + * @param {Object} [context=window] + * The "context" in which the debounced function should debounce. For + * example, if this function should be tied to a Video.js player, + * the player can be passed here. Alternatively, defaults to the + * global `window` object. + * + * @return {Function} + * A debounced function. + */ + + var debounce = function debounce(func, wait, immediate, context) { + if (context === void 0) { + context = window_1; + } + + var timeout; + + var cancel = function cancel() { + context.clearTimeout(timeout); + timeout = null; + }; + /* eslint-disable consistent-this */ + + + var debounced = function debounced() { + var self = this; + var args = arguments; + + var _later = function later() { + timeout = null; + _later = null; + + if (!immediate) { + func.apply(self, args); + } + }; + + if (!timeout && immediate) { + func.apply(self, args); + } + + context.clearTimeout(timeout); + timeout = context.setTimeout(_later, wait); + }; + /* eslint-enable consistent-this */ + + + debounced.cancel = cancel; + return debounced; + }; + + /** + * @file src/js/event-target.js + */ + /** + * `EventTarget` is a class that can have the same API as the DOM `EventTarget`. It + * adds shorthand functions that wrap around lengthy functions. For example: + * the `on` function is a wrapper around `addEventListener`. + * + * @see [EventTarget Spec]{@link https://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-EventTarget} + * @class EventTarget + */ + + var EventTarget = function EventTarget() {}; + /** + * A Custom DOM event. + * + * @typedef {Object} EventTarget~Event + * @see [Properties]{@link https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent} + */ + + /** + * All event listeners should follow the following format. + * + * @callback EventTarget~EventListener + * @this {EventTarget} + * + * @param {EventTarget~Event} event + * the event that triggered this function + * + * @param {Object} [hash] + * hash of data sent during the event + */ + + /** + * An object containing event names as keys and booleans as values. + * + * > NOTE: If an event name is set to a true value here {@link EventTarget#trigger} + * will have extra functionality. See that function for more information. + * + * @property EventTarget.prototype.allowedEvents_ + * @private + */ + + + EventTarget.prototype.allowedEvents_ = {}; + /** + * Adds an `event listener` to an instance of an `EventTarget`. An `event listener` is a + * function that will get called when an event with a certain name gets triggered. + * + * @param {string|string[]} type + * An event name or an array of event names. + * + * @param {EventTarget~EventListener} fn + * The function to call with `EventTarget`s + */ + + EventTarget.prototype.on = function (type, fn) { + // Remove the addEventListener alias before calling Events.on + // so we don't get into an infinite type loop + var ael = this.addEventListener; + + this.addEventListener = function () {}; + + on(this, type, fn); + this.addEventListener = ael; + }; + /** + * An alias of {@link EventTarget#on}. Allows `EventTarget` to mimic + * the standard DOM API. + * + * @function + * @see {@link EventTarget#on} + */ + + + EventTarget.prototype.addEventListener = EventTarget.prototype.on; + /** + * Removes an `event listener` for a specific event from an instance of `EventTarget`. + * This makes it so that the `event listener` will no longer get called when the + * named event happens. + * + * @param {string|string[]} type + * An event name or an array of event names. + * + * @param {EventTarget~EventListener} fn + * The function to remove. + */ + + EventTarget.prototype.off = function (type, fn) { + off(this, type, fn); + }; + /** + * An alias of {@link EventTarget#off}. Allows `EventTarget` to mimic + * the standard DOM API. + * + * @function + * @see {@link EventTarget#off} + */ + + + EventTarget.prototype.removeEventListener = EventTarget.prototype.off; + /** + * This function will add an `event listener` that gets triggered only once. After the + * first trigger it will get removed. This is like adding an `event listener` + * with {@link EventTarget#on} that calls {@link EventTarget#off} on itself. + * + * @param {string|string[]} type + * An event name or an array of event names. + * + * @param {EventTarget~EventListener} fn + * The function to be called once for each event name. + */ + + EventTarget.prototype.one = function (type, fn) { + // Remove the addEventListener aliasing Events.on + // so we don't get into an infinite type loop + var ael = this.addEventListener; + + this.addEventListener = function () {}; + + one(this, type, fn); + this.addEventListener = ael; + }; + + EventTarget.prototype.any = function (type, fn) { + // Remove the addEventListener aliasing Events.on + // so we don't get into an infinite type loop + var ael = this.addEventListener; + + this.addEventListener = function () {}; + + any(this, type, fn); + this.addEventListener = ael; + }; + /** + * This function causes an event to happen. This will then cause any `event listeners` + * that are waiting for that event, to get called. If there are no `event listeners` + * for an event then nothing will happen. + * + * If the name of the `Event` that is being triggered is in `EventTarget.allowedEvents_`. + * Trigger will also call the `on` + `uppercaseEventName` function. + * + * Example: + * 'click' is in `EventTarget.allowedEvents_`, so, trigger will attempt to call + * `onClick` if it exists. + * + * @param {string|EventTarget~Event|Object} event + * The name of the event, an `Event`, or an object with a key of type set to + * an event name. + */ + + + EventTarget.prototype.trigger = function (event) { + var type = event.type || event; // deprecation + // In a future version we should default target to `this` + // similar to how we default the target to `elem` in + // `Events.trigger`. Right now the default `target` will be + // `document` due to the `Event.fixEvent` call. + + if (typeof event === 'string') { + event = { + type: type + }; + } + + event = fixEvent(event); + + if (this.allowedEvents_[type] && this['on' + type]) { + this['on' + type](event); + } + + trigger(this, event); + }; + /** + * An alias of {@link EventTarget#trigger}. Allows `EventTarget` to mimic + * the standard DOM API. + * + * @function + * @see {@link EventTarget#trigger} + */ + + + EventTarget.prototype.dispatchEvent = EventTarget.prototype.trigger; + var EVENT_MAP; + + EventTarget.prototype.queueTrigger = function (event) { + var _this = this; + + // only set up EVENT_MAP if it'll be used + if (!EVENT_MAP) { + EVENT_MAP = new Map(); + } + + var type = event.type || event; + var map = EVENT_MAP.get(this); + + if (!map) { + map = new Map(); + EVENT_MAP.set(this, map); + } + + var oldTimeout = map.get(type); + map["delete"](type); + window_1.clearTimeout(oldTimeout); + var timeout = window_1.setTimeout(function () { + // if we cleared out all timeouts for the current target, delete its map + if (map.size === 0) { + map = null; + EVENT_MAP["delete"](_this); + } + + _this.trigger(event); + }, 0); + map.set(type, timeout); + }; + + /** + * @file mixins/evented.js + * @module evented + */ + /** + * Returns whether or not an object has had the evented mixin applied. + * + * @param {Object} object + * An object to test. + * + * @return {boolean} + * Whether or not the object appears to be evented. + */ + + var isEvented = function isEvented(object) { + return object instanceof EventTarget || !!object.eventBusEl_ && ['on', 'one', 'off', 'trigger'].every(function (k) { + return typeof object[k] === 'function'; + }); + }; + /** + * Adds a callback to run after the evented mixin applied. + * + * @param {Object} object + * An object to Add + * @param {Function} callback + * The callback to run. + */ + + + var addEventedCallback = function addEventedCallback(target, callback) { + if (isEvented(target)) { + callback(); + } else { + if (!target.eventedCallbacks) { + target.eventedCallbacks = []; + } + + target.eventedCallbacks.push(callback); + } + }; + /** + * Whether a value is a valid event type - non-empty string or array. + * + * @private + * @param {string|Array} type + * The type value to test. + * + * @return {boolean} + * Whether or not the type is a valid event type. + */ + + + var isValidEventType = function isValidEventType(type) { + return (// The regex here verifies that the `type` contains at least one non- + // whitespace character. + typeof type === 'string' && /\S/.test(type) || Array.isArray(type) && !!type.length + ); + }; + /** + * Validates a value to determine if it is a valid event target. Throws if not. + * + * @private + * @throws {Error} + * If the target does not appear to be a valid event target. + * + * @param {Object} target + * The object to test. + */ + + + var validateTarget = function validateTarget(target) { + if (!target.nodeName && !isEvented(target)) { + throw new Error('Invalid target; must be a DOM node or evented object.'); + } + }; + /** + * Validates a value to determine if it is a valid event target. Throws if not. + * + * @private + * @throws {Error} + * If the type does not appear to be a valid event type. + * + * @param {string|Array} type + * The type to test. + */ + + + var validateEventType = function validateEventType(type) { + if (!isValidEventType(type)) { + throw new Error('Invalid event type; must be a non-empty string or array.'); + } + }; + /** + * Validates a value to determine if it is a valid listener. Throws if not. + * + * @private + * @throws {Error} + * If the listener is not a function. + * + * @param {Function} listener + * The listener to test. + */ + + + var validateListener = function validateListener(listener) { + if (typeof listener !== 'function') { + throw new Error('Invalid listener; must be a function.'); + } + }; + /** + * Takes an array of arguments given to `on()` or `one()`, validates them, and + * normalizes them into an object. + * + * @private + * @param {Object} self + * The evented object on which `on()` or `one()` was called. This + * object will be bound as the `this` value for the listener. + * + * @param {Array} args + * An array of arguments passed to `on()` or `one()`. + * + * @return {Object} + * An object containing useful values for `on()` or `one()` calls. + */ + + + var normalizeListenArgs = function normalizeListenArgs(self, args) { + // If the number of arguments is less than 3, the target is always the + // evented object itself. + var isTargetingSelf = args.length < 3 || args[0] === self || args[0] === self.eventBusEl_; + var target; + var type; + var listener; + + if (isTargetingSelf) { + target = self.eventBusEl_; // Deal with cases where we got 3 arguments, but we are still listening to + // the evented object itself. + + if (args.length >= 3) { + args.shift(); + } + + type = args[0]; + listener = args[1]; + } else { + target = args[0]; + type = args[1]; + listener = args[2]; + } + + validateTarget(target); + validateEventType(type); + validateListener(listener); + listener = bind(self, listener); + return { + isTargetingSelf: isTargetingSelf, + target: target, + type: type, + listener: listener + }; + }; + /** + * Adds the listener to the event type(s) on the target, normalizing for + * the type of target. + * + * @private + * @param {Element|Object} target + * A DOM node or evented object. + * + * @param {string} method + * The event binding method to use ("on" or "one"). + * + * @param {string|Array} type + * One or more event type(s). + * + * @param {Function} listener + * A listener function. + */ + + + var listen$1 = function listen(target, method, type, listener) { + validateTarget(target); + + if (target.nodeName) { + Events[method](target, type, listener); + } else { + target[method](type, listener); + } + }; + /** + * Contains methods that provide event capabilities to an object which is passed + * to {@link module:evented|evented}. + * + * @mixin EventedMixin + */ + + + var EventedMixin = { + /** + * Add a listener to an event (or events) on this object or another evented + * object. + * + * @param {string|Array|Element|Object} targetOrType + * If this is a string or array, it represents the event type(s) + * that will trigger the listener. + * + * Another evented object can be passed here instead, which will + * cause the listener to listen for events on _that_ object. + * + * In either case, the listener's `this` value will be bound to + * this object. + * + * @param {string|Array|Function} typeOrListener + * If the first argument was a string or array, this should be the + * listener function. Otherwise, this is a string or array of event + * type(s). + * + * @param {Function} [listener] + * If the first argument was another evented object, this will be + * the listener function. + */ + on: function on() { + var _this = this; + + for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) { + args[_key] = arguments[_key]; + } + + var _normalizeListenArgs = normalizeListenArgs(this, args), + isTargetingSelf = _normalizeListenArgs.isTargetingSelf, + target = _normalizeListenArgs.target, + type = _normalizeListenArgs.type, + listener = _normalizeListenArgs.listener; + + listen$1(target, 'on', type, listener); // If this object is listening to another evented object. + + if (!isTargetingSelf) { + // If this object is disposed, remove the listener. + var removeListenerOnDispose = function removeListenerOnDispose() { + return _this.off(target, type, listener); + }; // Use the same function ID as the listener so we can remove it later it + // using the ID of the original listener. + + + removeListenerOnDispose.guid = listener.guid; // Add a listener to the target's dispose event as well. This ensures + // that if the target is disposed BEFORE this object, we remove the + // removal listener that was just added. Otherwise, we create a memory leak. + + var removeRemoverOnTargetDispose = function removeRemoverOnTargetDispose() { + return _this.off('dispose', removeListenerOnDispose); + }; // Use the same function ID as the listener so we can remove it later + // it using the ID of the original listener. + + + removeRemoverOnTargetDispose.guid = listener.guid; + listen$1(this, 'on', 'dispose', removeListenerOnDispose); + listen$1(target, 'on', 'dispose', removeRemoverOnTargetDispose); + } + }, + + /** + * Add a listener to an event (or events) on this object or another evented + * object. The listener will be called once per event and then removed. + * + * @param {string|Array|Element|Object} targetOrType + * If this is a string or array, it represents the event type(s) + * that will trigger the listener. + * + * Another evented object can be passed here instead, which will + * cause the listener to listen for events on _that_ object. + * + * In either case, the listener's `this` value will be bound to + * this object. + * + * @param {string|Array|Function} typeOrListener + * If the first argument was a string or array, this should be the + * listener function. Otherwise, this is a string or array of event + * type(s). + * + * @param {Function} [listener] + * If the first argument was another evented object, this will be + * the listener function. + */ + one: function one() { + var _this2 = this; + + for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) { + args[_key2] = arguments[_key2]; + } + + var _normalizeListenArgs2 = normalizeListenArgs(this, args), + isTargetingSelf = _normalizeListenArgs2.isTargetingSelf, + target = _normalizeListenArgs2.target, + type = _normalizeListenArgs2.type, + listener = _normalizeListenArgs2.listener; // Targeting this evented object. + + + if (isTargetingSelf) { + listen$1(target, 'one', type, listener); // Targeting another evented object. + } else { + // TODO: This wrapper is incorrect! It should only + // remove the wrapper for the event type that called it. + // Instead all listners are removed on the first trigger! + // see https://github.com/videojs/video.js/issues/5962 + var wrapper = function wrapper() { + _this2.off(target, type, wrapper); + + for (var _len3 = arguments.length, largs = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) { + largs[_key3] = arguments[_key3]; + } + + listener.apply(null, largs); + }; // Use the same function ID as the listener so we can remove it later + // it using the ID of the original listener. + + + wrapper.guid = listener.guid; + listen$1(target, 'one', type, wrapper); + } + }, + + /** + * Add a listener to an event (or events) on this object or another evented + * object. The listener will only be called once for the first event that is triggered + * then removed. + * + * @param {string|Array|Element|Object} targetOrType + * If this is a string or array, it represents the event type(s) + * that will trigger the listener. + * + * Another evented object can be passed here instead, which will + * cause the listener to listen for events on _that_ object. + * + * In either case, the listener's `this` value will be bound to + * this object. + * + * @param {string|Array|Function} typeOrListener + * If the first argument was a string or array, this should be the + * listener function. Otherwise, this is a string or array of event + * type(s). + * + * @param {Function} [listener] + * If the first argument was another evented object, this will be + * the listener function. + */ + any: function any() { + var _this3 = this; + + for (var _len4 = arguments.length, args = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) { + args[_key4] = arguments[_key4]; + } + + var _normalizeListenArgs3 = normalizeListenArgs(this, args), + isTargetingSelf = _normalizeListenArgs3.isTargetingSelf, + target = _normalizeListenArgs3.target, + type = _normalizeListenArgs3.type, + listener = _normalizeListenArgs3.listener; // Targeting this evented object. + + + if (isTargetingSelf) { + listen$1(target, 'any', type, listener); // Targeting another evented object. + } else { + var wrapper = function wrapper() { + _this3.off(target, type, wrapper); + + for (var _len5 = arguments.length, largs = new Array(_len5), _key5 = 0; _key5 < _len5; _key5++) { + largs[_key5] = arguments[_key5]; + } + + listener.apply(null, largs); + }; // Use the same function ID as the listener so we can remove it later + // it using the ID of the original listener. + + + wrapper.guid = listener.guid; + listen$1(target, 'any', type, wrapper); + } + }, + + /** + * Removes listener(s) from event(s) on an evented object. + * + * @param {string|Array|Element|Object} [targetOrType] + * If this is a string or array, it represents the event type(s). + * + * Another evented object can be passed here instead, in which case + * ALL 3 arguments are _required_. + * + * @param {string|Array|Function} [typeOrListener] + * If the first argument was a string or array, this may be the + * listener function. Otherwise, this is a string or array of event + * type(s). + * + * @param {Function} [listener] + * If the first argument was another evented object, this will be + * the listener function; otherwise, _all_ listeners bound to the + * event type(s) will be removed. + */ + off: function off$1(targetOrType, typeOrListener, listener) { + // Targeting this evented object. + if (!targetOrType || isValidEventType(targetOrType)) { + off(this.eventBusEl_, targetOrType, typeOrListener); // Targeting another evented object. + } else { + var target = targetOrType; + var type = typeOrListener; // Fail fast and in a meaningful way! + + validateTarget(target); + validateEventType(type); + validateListener(listener); // Ensure there's at least a guid, even if the function hasn't been used + + listener = bind(this, listener); // Remove the dispose listener on this evented object, which was given + // the same guid as the event listener in on(). + + this.off('dispose', listener); + + if (target.nodeName) { + off(target, type, listener); + off(target, 'dispose', listener); + } else if (isEvented(target)) { + target.off(type, listener); + target.off('dispose', listener); + } + } + }, + + /** + * Fire an event on this evented object, causing its listeners to be called. + * + * @param {string|Object} event + * An event type or an object with a type property. + * + * @param {Object} [hash] + * An additional object to pass along to listeners. + * + * @return {boolean} + * Whether or not the default behavior was prevented. + */ + trigger: function trigger$1(event, hash) { + return trigger(this.eventBusEl_, event, hash); + } + }; + /** + * Applies {@link module:evented~EventedMixin|EventedMixin} to a target object. + * + * @param {Object} target + * The object to which to add event methods. + * + * @param {Object} [options={}] + * Options for customizing the mixin behavior. + * + * @param {string} [options.eventBusKey] + * By default, adds a `eventBusEl_` DOM element to the target object, + * which is used as an event bus. If the target object already has a + * DOM element that should be used, pass its key here. + * + * @return {Object} + * The target object. + */ + + function evented(target, options) { + if (options === void 0) { + options = {}; + } + + var _options = options, + eventBusKey = _options.eventBusKey; // Set or create the eventBusEl_. + + if (eventBusKey) { + if (!target[eventBusKey].nodeName) { + throw new Error("The eventBusKey \"" + eventBusKey + "\" does not refer to an element."); + } + + target.eventBusEl_ = target[eventBusKey]; + } else { + target.eventBusEl_ = createEl('span', { + className: 'vjs-event-bus' + }); + } + + assign(target, EventedMixin); + + if (target.eventedCallbacks) { + target.eventedCallbacks.forEach(function (callback) { + callback(); + }); + } // When any evented object is disposed, it removes all its listeners. + + + target.on('dispose', function () { + target.off(); + window_1.setTimeout(function () { + target.eventBusEl_ = null; + }, 0); + }); + return target; + } + + /** + * @file mixins/stateful.js + * @module stateful + */ + /** + * Contains methods that provide statefulness to an object which is passed + * to {@link module:stateful}. + * + * @mixin StatefulMixin + */ + + var StatefulMixin = { + /** + * A hash containing arbitrary keys and values representing the state of + * the object. + * + * @type {Object} + */ + state: {}, + + /** + * Set the state of an object by mutating its + * {@link module:stateful~StatefulMixin.state|state} object in place. + * + * @fires module:stateful~StatefulMixin#statechanged + * @param {Object|Function} stateUpdates + * A new set of properties to shallow-merge into the plugin state. + * Can be a plain object or a function returning a plain object. + * + * @return {Object|undefined} + * An object containing changes that occurred. If no changes + * occurred, returns `undefined`. + */ + setState: function setState(stateUpdates) { + var _this = this; + + // Support providing the `stateUpdates` state as a function. + if (typeof stateUpdates === 'function') { + stateUpdates = stateUpdates(); + } + + var changes; + each(stateUpdates, function (value, key) { + // Record the change if the value is different from what's in the + // current state. + if (_this.state[key] !== value) { + changes = changes || {}; + changes[key] = { + from: _this.state[key], + to: value + }; + } + + _this.state[key] = value; + }); // Only trigger "statechange" if there were changes AND we have a trigger + // function. This allows us to not require that the target object be an + // evented object. + + if (changes && isEvented(this)) { + /** + * An event triggered on an object that is both + * {@link module:stateful|stateful} and {@link module:evented|evented} + * indicating that its state has changed. + * + * @event module:stateful~StatefulMixin#statechanged + * @type {Object} + * @property {Object} changes + * A hash containing the properties that were changed and + * the values they were changed `from` and `to`. + */ + this.trigger({ + changes: changes, + type: 'statechanged' + }); + } + + return changes; + } + }; + /** + * Applies {@link module:stateful~StatefulMixin|StatefulMixin} to a target + * object. + * + * If the target object is {@link module:evented|evented} and has a + * `handleStateChanged` method, that method will be automatically bound to the + * `statechanged` event on itself. + * + * @param {Object} target + * The object to be made stateful. + * + * @param {Object} [defaultState] + * A default set of properties to populate the newly-stateful object's + * `state` property. + * + * @return {Object} + * Returns the `target`. + */ + + function stateful(target, defaultState) { + assign(target, StatefulMixin); // This happens after the mixing-in because we need to replace the `state` + // added in that step. + + target.state = assign({}, target.state, defaultState); // Auto-bind the `handleStateChanged` method of the target object if it exists. + + if (typeof target.handleStateChanged === 'function' && isEvented(target)) { + target.on('statechanged', target.handleStateChanged); + } + + return target; + } + + /** + * @file string-cases.js + * @module to-lower-case + */ + + /** + * Lowercase the first letter of a string. + * + * @param {string} string + * String to be lowercased + * + * @return {string} + * The string with a lowercased first letter + */ + var toLowerCase = function toLowerCase(string) { + if (typeof string !== 'string') { + return string; + } + + return string.replace(/./, function (w) { + return w.toLowerCase(); + }); + }; + /** + * Uppercase the first letter of a string. + * + * @param {string} string + * String to be uppercased + * + * @return {string} + * The string with an uppercased first letter + */ + + var toTitleCase = function toTitleCase(string) { + if (typeof string !== 'string') { + return string; + } + + return string.replace(/./, function (w) { + return w.toUpperCase(); + }); + }; + /** + * Compares the TitleCase versions of the two strings for equality. + * + * @param {string} str1 + * The first string to compare + * + * @param {string} str2 + * The second string to compare + * + * @return {boolean} + * Whether the TitleCase versions of the strings are equal + */ + + var titleCaseEquals = function titleCaseEquals(str1, str2) { + return toTitleCase(str1) === toTitleCase(str2); + }; + + /** + * @file merge-options.js + * @module merge-options + */ + /** + * Merge two objects recursively. + * + * Performs a deep merge like + * {@link https://lodash.com/docs/4.17.10#merge|lodash.merge}, but only merges + * plain objects (not arrays, elements, or anything else). + * + * Non-plain object values will be copied directly from the right-most + * argument. + * + * @static + * @param {Object[]} sources + * One or more objects to merge into a new object. + * + * @return {Object} + * A new object that is the merged result of all sources. + */ + + function mergeOptions() { + var result = {}; + + for (var _len = arguments.length, sources = new Array(_len), _key = 0; _key < _len; _key++) { + sources[_key] = arguments[_key]; + } + + sources.forEach(function (source) { + if (!source) { + return; + } + + each(source, function (value, key) { + if (!isPlain(value)) { + result[key] = value; + return; + } + + if (!isPlain(result[key])) { + result[key] = {}; + } + + result[key] = mergeOptions(result[key], value); + }); + }); + return result; + } + + /** + * Player Component - Base class for all UI objects + * + * @file component.js + */ + /** + * Base class for all UI Components. + * Components are UI objects which represent both a javascript object and an element + * in the DOM. They can be children of other components, and can have + * children themselves. + * + * Components can also use methods from {@link EventTarget} + */ + + var Component = /*#__PURE__*/function () { + /** + * A callback that is called when a component is ready. Does not have any + * paramters and any callback value will be ignored. + * + * @callback Component~ReadyCallback + * @this Component + */ + + /** + * Creates an instance of this class. + * + * @param {Player} player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + * + * @param {Object[]} [options.children] + * An array of children objects to intialize this component with. Children objects have + * a name property that will be used if more than one component of the same type needs to be + * added. + * + * @param {Component~ReadyCallback} [ready] + * Function that gets called when the `Component` is ready. + */ + function Component(player, options, ready) { + // The component might be the player itself and we can't pass `this` to super + if (!player && this.play) { + this.player_ = player = this; // eslint-disable-line + } else { + this.player_ = player; + } + + this.isDisposed_ = false; // Hold the reference to the parent component via `addChild` method + + this.parentComponent_ = null; // Make a copy of prototype.options_ to protect against overriding defaults + + this.options_ = mergeOptions({}, this.options_); // Updated options with supplied options + + options = this.options_ = mergeOptions(this.options_, options); // Get ID from options or options element if one is supplied + + this.id_ = options.id || options.el && options.el.id; // If there was no ID from the options, generate one + + if (!this.id_) { + // Don't require the player ID function in the case of mock players + var id = player && player.id && player.id() || 'no_player'; + this.id_ = id + "_component_" + newGUID(); + } + + this.name_ = options.name || null; // Create element if one wasn't provided in options + + if (options.el) { + this.el_ = options.el; + } else if (options.createEl !== false) { + this.el_ = this.createEl(); + } // if evented is anything except false, we want to mixin in evented + + + if (options.evented !== false) { + // Make this an evented object and use `el_`, if available, as its event bus + evented(this, { + eventBusKey: this.el_ ? 'el_' : null + }); + } + + stateful(this, this.constructor.defaultState); + this.children_ = []; + this.childIndex_ = {}; + this.childNameIndex_ = {}; + var SetSham; + + if (!window_1.Set) { + SetSham = /*#__PURE__*/function () { + function SetSham() { + this.set_ = {}; + } + + var _proto2 = SetSham.prototype; + + _proto2.has = function has(key) { + return key in this.set_; + }; + + _proto2["delete"] = function _delete(key) { + var has = this.has(key); + delete this.set_[key]; + return has; + }; + + _proto2.add = function add(key) { + this.set_[key] = 1; + return this; + }; + + _proto2.forEach = function forEach(callback, thisArg) { + for (var key in this.set_) { + callback.call(thisArg, key, key, this); + } + }; + + return SetSham; + }(); + } + + this.setTimeoutIds_ = window_1.Set ? new Set() : new SetSham(); + this.setIntervalIds_ = window_1.Set ? new Set() : new SetSham(); + this.rafIds_ = window_1.Set ? new Set() : new SetSham(); + this.clearingTimersOnDispose_ = false; // Add any child components in options + + if (options.initChildren !== false) { + this.initChildren(); + } + + this.ready(ready); // Don't want to trigger ready here or it will before init is actually + // finished for all children that run this constructor + + if (options.reportTouchActivity !== false) { + this.enableTouchActivity(); + } + } + /** + * Dispose of the `Component` and all child components. + * + * @fires Component#dispose + */ + + + var _proto = Component.prototype; + + _proto.dispose = function dispose() { + // Bail out if the component has already been disposed. + if (this.isDisposed_) { + return; + } + /** + * Triggered when a `Component` is disposed. + * + * @event Component#dispose + * @type {EventTarget~Event} + * + * @property {boolean} [bubbles=false] + * set to false so that the dispose event does not + * bubble up + */ + + + this.trigger({ + type: 'dispose', + bubbles: false + }); + this.isDisposed_ = true; // Dispose all children. + + if (this.children_) { + for (var i = this.children_.length - 1; i >= 0; i--) { + if (this.children_[i].dispose) { + this.children_[i].dispose(); + } + } + } // Delete child references + + + this.children_ = null; + this.childIndex_ = null; + this.childNameIndex_ = null; + this.parentComponent_ = null; + + if (this.el_) { + // Remove element from DOM + if (this.el_.parentNode) { + this.el_.parentNode.removeChild(this.el_); + } + + if (DomData.has(this.el_)) { + DomData["delete"](this.el_); + } + + this.el_ = null; + } // remove reference to the player after disposing of the element + + + this.player_ = null; + } + /** + * Determine whether or not this component has been disposed. + * + * @return {boolean} + * If the component has been disposed, will be `true`. Otherwise, `false`. + */ + ; + + _proto.isDisposed = function isDisposed() { + return Boolean(this.isDisposed_); + } + /** + * Return the {@link Player} that the `Component` has attached to. + * + * @return {Player} + * The player that this `Component` has attached to. + */ + ; + + _proto.player = function player() { + return this.player_; + } + /** + * Deep merge of options objects with new options. + * > Note: When both `obj` and `options` contain properties whose values are objects. + * The two properties get merged using {@link module:mergeOptions} + * + * @param {Object} obj + * The object that contains new options. + * + * @return {Object} + * A new object of `this.options_` and `obj` merged together. + */ + ; + + _proto.options = function options(obj) { + if (!obj) { + return this.options_; + } + + this.options_ = mergeOptions(this.options_, obj); + return this.options_; + } + /** + * Get the `Component`s DOM element + * + * @return {Element} + * The DOM element for this `Component`. + */ + ; + + _proto.el = function el() { + return this.el_; + } + /** + * Create the `Component`s DOM element. + * + * @param {string} [tagName] + * Element's DOM node type. e.g. 'div' + * + * @param {Object} [properties] + * An object of properties that should be set. + * + * @param {Object} [attributes] + * An object of attributes that should be set. + * + * @return {Element} + * The element that gets created. + */ + ; + + _proto.createEl = function createEl$1(tagName, properties, attributes) { + return createEl(tagName, properties, attributes); + } + /** + * Localize a string given the string in english. + * + * If tokens are provided, it'll try and run a simple token replacement on the provided string. + * The tokens it looks for look like `{1}` with the index being 1-indexed into the tokens array. + * + * If a `defaultValue` is provided, it'll use that over `string`, + * if a value isn't found in provided language files. + * This is useful if you want to have a descriptive key for token replacement + * but have a succinct localized string and not require `en.json` to be included. + * + * Currently, it is used for the progress bar timing. + * ```js + * { + * "progress bar timing: currentTime={1} duration={2}": "{1} of {2}" + * } + * ``` + * It is then used like so: + * ```js + * this.localize('progress bar timing: currentTime={1} duration{2}', + * [this.player_.currentTime(), this.player_.duration()], + * '{1} of {2}'); + * ``` + * + * Which outputs something like: `01:23 of 24:56`. + * + * + * @param {string} string + * The string to localize and the key to lookup in the language files. + * @param {string[]} [tokens] + * If the current item has token replacements, provide the tokens here. + * @param {string} [defaultValue] + * Defaults to `string`. Can be a default value to use for token replacement + * if the lookup key is needed to be separate. + * + * @return {string} + * The localized string or if no localization exists the english string. + */ + ; + + _proto.localize = function localize(string, tokens, defaultValue) { + if (defaultValue === void 0) { + defaultValue = string; + } + + var code = this.player_.language && this.player_.language(); + var languages = this.player_.languages && this.player_.languages(); + var language = languages && languages[code]; + var primaryCode = code && code.split('-')[0]; + var primaryLang = languages && languages[primaryCode]; + var localizedString = defaultValue; + + if (language && language[string]) { + localizedString = language[string]; + } else if (primaryLang && primaryLang[string]) { + localizedString = primaryLang[string]; + } + + if (tokens) { + localizedString = localizedString.replace(/\{(\d+)\}/g, function (match, index) { + var value = tokens[index - 1]; + var ret = value; + + if (typeof value === 'undefined') { + ret = match; + } + + return ret; + }); + } + + return localizedString; + } + /** + * Return the `Component`s DOM element. This is where children get inserted. + * This will usually be the the same as the element returned in {@link Component#el}. + * + * @return {Element} + * The content element for this `Component`. + */ + ; + + _proto.contentEl = function contentEl() { + return this.contentEl_ || this.el_; + } + /** + * Get this `Component`s ID + * + * @return {string} + * The id of this `Component` + */ + ; + + _proto.id = function id() { + return this.id_; + } + /** + * Get the `Component`s name. The name gets used to reference the `Component` + * and is set during registration. + * + * @return {string} + * The name of this `Component`. + */ + ; + + _proto.name = function name() { + return this.name_; + } + /** + * Get an array of all child components + * + * @return {Array} + * The children + */ + ; + + _proto.children = function children() { + return this.children_; + } + /** + * Returns the child `Component` with the given `id`. + * + * @param {string} id + * The id of the child `Component` to get. + * + * @return {Component|undefined} + * The child `Component` with the given `id` or undefined. + */ + ; + + _proto.getChildById = function getChildById(id) { + return this.childIndex_[id]; + } + /** + * Returns the child `Component` with the given `name`. + * + * @param {string} name + * The name of the child `Component` to get. + * + * @return {Component|undefined} + * The child `Component` with the given `name` or undefined. + */ + ; + + _proto.getChild = function getChild(name) { + if (!name) { + return; + } + + return this.childNameIndex_[name]; + } + /** + * Returns the descendant `Component` following the givent + * descendant `names`. For instance ['foo', 'bar', 'baz'] would + * try to get 'foo' on the current component, 'bar' on the 'foo' + * component and 'baz' on the 'bar' component and return undefined + * if any of those don't exist. + * + * @param {...string[]|...string} names + * The name of the child `Component` to get. + * + * @return {Component|undefined} + * The descendant `Component` following the given descendant + * `names` or undefined. + */ + ; + + _proto.getDescendant = function getDescendant() { + for (var _len = arguments.length, names = new Array(_len), _key = 0; _key < _len; _key++) { + names[_key] = arguments[_key]; + } + + // flatten array argument into the main array + names = names.reduce(function (acc, n) { + return acc.concat(n); + }, []); + var currentChild = this; + + for (var i = 0; i < names.length; i++) { + currentChild = currentChild.getChild(names[i]); + + if (!currentChild || !currentChild.getChild) { + return; + } + } + + return currentChild; + } + /** + * Add a child `Component` inside the current `Component`. + * + * + * @param {string|Component} child + * The name or instance of a child to add. + * + * @param {Object} [options={}] + * The key/value store of options that will get passed to children of + * the child. + * + * @param {number} [index=this.children_.length] + * The index to attempt to add a child into. + * + * @return {Component} + * The `Component` that gets added as a child. When using a string the + * `Component` will get created by this process. + */ + ; + + _proto.addChild = function addChild(child, options, index) { + if (options === void 0) { + options = {}; + } + + if (index === void 0) { + index = this.children_.length; + } + + var component; + var componentName; // If child is a string, create component with options + + if (typeof child === 'string') { + componentName = toTitleCase(child); + var componentClassName = options.componentClass || componentName; // Set name through options + + options.name = componentName; // Create a new object & element for this controls set + // If there's no .player_, this is a player + + var ComponentClass = Component.getComponent(componentClassName); + + if (!ComponentClass) { + throw new Error("Component " + componentClassName + " does not exist"); + } // data stored directly on the videojs object may be + // misidentified as a component to retain + // backwards-compatibility with 4.x. check to make sure the + // component class can be instantiated. + + + if (typeof ComponentClass !== 'function') { + return null; + } + + component = new ComponentClass(this.player_ || this, options); // child is a component instance + } else { + component = child; + } + + if (component.parentComponent_) { + component.parentComponent_.removeChild(component); + } + + this.children_.splice(index, 0, component); + component.parentComponent_ = this; + + if (typeof component.id === 'function') { + this.childIndex_[component.id()] = component; + } // If a name wasn't used to create the component, check if we can use the + // name function of the component + + + componentName = componentName || component.name && toTitleCase(component.name()); + + if (componentName) { + this.childNameIndex_[componentName] = component; + this.childNameIndex_[toLowerCase(componentName)] = component; + } // Add the UI object's element to the container div (box) + // Having an element is not required + + + if (typeof component.el === 'function' && component.el()) { + // If inserting before a component, insert before that component's element + var refNode = null; + + if (this.children_[index + 1]) { + // Most children are components, but the video tech is an HTML element + if (this.children_[index + 1].el_) { + refNode = this.children_[index + 1].el_; + } else if (isEl(this.children_[index + 1])) { + refNode = this.children_[index + 1]; + } + } + + this.contentEl().insertBefore(component.el(), refNode); + } // Return so it can stored on parent object if desired. + + + return component; + } + /** + * Remove a child `Component` from this `Component`s list of children. Also removes + * the child `Component`s element from this `Component`s element. + * + * @param {Component} component + * The child `Component` to remove. + */ + ; + + _proto.removeChild = function removeChild(component) { + if (typeof component === 'string') { + component = this.getChild(component); + } + + if (!component || !this.children_) { + return; + } + + var childFound = false; + + for (var i = this.children_.length - 1; i >= 0; i--) { + if (this.children_[i] === component) { + childFound = true; + this.children_.splice(i, 1); + break; + } + } + + if (!childFound) { + return; + } + + component.parentComponent_ = null; + this.childIndex_[component.id()] = null; + this.childNameIndex_[toTitleCase(component.name())] = null; + this.childNameIndex_[toLowerCase(component.name())] = null; + var compEl = component.el(); + + if (compEl && compEl.parentNode === this.contentEl()) { + this.contentEl().removeChild(component.el()); + } + } + /** + * Add and initialize default child `Component`s based upon options. + */ + ; + + _proto.initChildren = function initChildren() { + var _this = this; + + var children = this.options_.children; + + if (children) { + // `this` is `parent` + var parentOptions = this.options_; + + var handleAdd = function handleAdd(child) { + var name = child.name; + var opts = child.opts; // Allow options for children to be set at the parent options + // e.g. videojs(id, { controlBar: false }); + // instead of videojs(id, { children: { controlBar: false }); + + if (parentOptions[name] !== undefined) { + opts = parentOptions[name]; + } // Allow for disabling default components + // e.g. options['children']['posterImage'] = false + + + if (opts === false) { + return; + } // Allow options to be passed as a simple boolean if no configuration + // is necessary. + + + if (opts === true) { + opts = {}; + } // We also want to pass the original player options + // to each component as well so they don't need to + // reach back into the player for options later. + + + opts.playerOptions = _this.options_.playerOptions; // Create and add the child component. + // Add a direct reference to the child by name on the parent instance. + // If two of the same component are used, different names should be supplied + // for each + + var newChild = _this.addChild(name, opts); + + if (newChild) { + _this[name] = newChild; + } + }; // Allow for an array of children details to passed in the options + + + var workingChildren; + var Tech = Component.getComponent('Tech'); + + if (Array.isArray(children)) { + workingChildren = children; + } else { + workingChildren = Object.keys(children); + } + + workingChildren // children that are in this.options_ but also in workingChildren would + // give us extra children we do not want. So, we want to filter them out. + .concat(Object.keys(this.options_).filter(function (child) { + return !workingChildren.some(function (wchild) { + if (typeof wchild === 'string') { + return child === wchild; + } + + return child === wchild.name; + }); + })).map(function (child) { + var name; + var opts; + + if (typeof child === 'string') { + name = child; + opts = children[name] || _this.options_[name] || {}; + } else { + name = child.name; + opts = child; + } + + return { + name: name, + opts: opts + }; + }).filter(function (child) { + // we have to make sure that child.name isn't in the techOrder since + // techs are registerd as Components but can't aren't compatible + // See https://github.com/videojs/video.js/issues/2772 + var c = Component.getComponent(child.opts.componentClass || toTitleCase(child.name)); + return c && !Tech.isTech(c); + }).forEach(handleAdd); + } + } + /** + * Builds the default DOM class name. Should be overriden by sub-components. + * + * @return {string} + * The DOM class name for this object. + * + * @abstract + */ + ; + + _proto.buildCSSClass = function buildCSSClass() { + // Child classes can include a function that does: + // return 'CLASS NAME' + this._super(); + return ''; + } + /** + * Bind a listener to the component's ready state. + * Different from event listeners in that if the ready event has already happened + * it will trigger the function immediately. + * + * @return {Component} + * Returns itself; method can be chained. + */ + ; + + _proto.ready = function ready(fn, sync) { + if (sync === void 0) { + sync = false; + } + + if (!fn) { + return; + } + + if (!this.isReady_) { + this.readyQueue_ = this.readyQueue_ || []; + this.readyQueue_.push(fn); + return; + } + + if (sync) { + fn.call(this); + } else { + // Call the function asynchronously by default for consistency + this.setTimeout(fn, 1); + } + } + /** + * Trigger all the ready listeners for this `Component`. + * + * @fires Component#ready + */ + ; + + _proto.triggerReady = function triggerReady() { + this.isReady_ = true; // Ensure ready is triggered asynchronously + + this.setTimeout(function () { + var readyQueue = this.readyQueue_; // Reset Ready Queue + + this.readyQueue_ = []; + + if (readyQueue && readyQueue.length > 0) { + readyQueue.forEach(function (fn) { + fn.call(this); + }, this); + } // Allow for using event listeners also + + /** + * Triggered when a `Component` is ready. + * + * @event Component#ready + * @type {EventTarget~Event} + */ + + + this.trigger('ready'); + }, 1); + } + /** + * Find a single DOM element matching a `selector`. This can be within the `Component`s + * `contentEl()` or another custom context. + * + * @param {string} selector + * A valid CSS selector, which will be passed to `querySelector`. + * + * @param {Element|string} [context=this.contentEl()] + * A DOM element within which to query. Can also be a selector string in + * which case the first matching element will get used as context. If + * missing `this.contentEl()` gets used. If `this.contentEl()` returns + * nothing it falls back to `document`. + * + * @return {Element|null} + * the dom element that was found, or null + * + * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors) + */ + ; + + _proto.$ = function $$1(selector, context) { + return $(selector, context || this.contentEl()); + } + /** + * Finds all DOM element matching a `selector`. This can be within the `Component`s + * `contentEl()` or another custom context. + * + * @param {string} selector + * A valid CSS selector, which will be passed to `querySelectorAll`. + * + * @param {Element|string} [context=this.contentEl()] + * A DOM element within which to query. Can also be a selector string in + * which case the first matching element will get used as context. If + * missing `this.contentEl()` gets used. If `this.contentEl()` returns + * nothing it falls back to `document`. + * + * @return {NodeList} + * a list of dom elements that were found + * + * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors) + */ + ; + + _proto.$$ = function $$$1(selector, context) { + return $$(selector, context || this.contentEl()); + } + /** + * Check if a component's element has a CSS class name. + * + * @param {string} classToCheck + * CSS class name to check. + * + * @return {boolean} + * - True if the `Component` has the class. + * - False if the `Component` does not have the class` + */ + ; + + _proto.hasClass = function hasClass$1(classToCheck) { + return hasClass(this.el_, classToCheck); + } + /** + * Add a CSS class name to the `Component`s element. + * + * @param {string} classToAdd + * CSS class name to add + */ + ; + + _proto.addClass = function addClass$1(classToAdd) { + addClass(this.el_, classToAdd); + } + /** + * Remove a CSS class name from the `Component`s element. + * + * @param {string} classToRemove + * CSS class name to remove + */ + ; + + _proto.removeClass = function removeClass$1(classToRemove) { + removeClass(this.el_, classToRemove); + } + /** + * Add or remove a CSS class name from the component's element. + * - `classToToggle` gets added when {@link Component#hasClass} would return false. + * - `classToToggle` gets removed when {@link Component#hasClass} would return true. + * + * @param {string} classToToggle + * The class to add or remove based on (@link Component#hasClass} + * + * @param {boolean|Dom~predicate} [predicate] + * An {@link Dom~predicate} function or a boolean + */ + ; + + _proto.toggleClass = function toggleClass$1(classToToggle, predicate) { + toggleClass(this.el_, classToToggle, predicate); + } + /** + * Show the `Component`s element if it is hidden by removing the + * 'vjs-hidden' class name from it. + */ + ; + + _proto.show = function show() { + this.removeClass('vjs-hidden'); + } + /** + * Hide the `Component`s element if it is currently showing by adding the + * 'vjs-hidden` class name to it. + */ + ; + + _proto.hide = function hide() { + this.addClass('vjs-hidden'); + } + /** + * Lock a `Component`s element in its visible state by adding the 'vjs-lock-showing' + * class name to it. Used during fadeIn/fadeOut. + * + * @private + */ + ; + + _proto.lockShowing = function lockShowing() { + this.addClass('vjs-lock-showing'); + } + /** + * Unlock a `Component`s element from its visible state by removing the 'vjs-lock-showing' + * class name from it. Used during fadeIn/fadeOut. + * + * @private + */ + ; + + _proto.unlockShowing = function unlockShowing() { + this.removeClass('vjs-lock-showing'); + } + /** + * Get the value of an attribute on the `Component`s element. + * + * @param {string} attribute + * Name of the attribute to get the value from. + * + * @return {string|null} + * - The value of the attribute that was asked for. + * - Can be an empty string on some browsers if the attribute does not exist + * or has no value + * - Most browsers will return null if the attibute does not exist or has + * no value. + * + * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute} + */ + ; + + _proto.getAttribute = function getAttribute$1(attribute) { + return getAttribute(this.el_, attribute); + } + /** + * Set the value of an attribute on the `Component`'s element + * + * @param {string} attribute + * Name of the attribute to set. + * + * @param {string} value + * Value to set the attribute to. + * + * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/setAttribute} + */ + ; + + _proto.setAttribute = function setAttribute$1(attribute, value) { + setAttribute(this.el_, attribute, value); + } + /** + * Remove an attribute from the `Component`s element. + * + * @param {string} attribute + * Name of the attribute to remove. + * + * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/removeAttribute} + */ + ; + + _proto.removeAttribute = function removeAttribute$1(attribute) { + removeAttribute(this.el_, attribute); + } + /** + * Get or set the width of the component based upon the CSS styles. + * See {@link Component#dimension} for more detailed information. + * + * @param {number|string} [num] + * The width that you want to set postfixed with '%', 'px' or nothing. + * + * @param {boolean} [skipListeners] + * Skip the componentresize event trigger + * + * @return {number|string} + * The width when getting, zero if there is no width. Can be a string + * postpixed with '%' or 'px'. + */ + ; + + _proto.width = function width(num, skipListeners) { + return this.dimension('width', num, skipListeners); + } + /** + * Get or set the height of the component based upon the CSS styles. + * See {@link Component#dimension} for more detailed information. + * + * @param {number|string} [num] + * The height that you want to set postfixed with '%', 'px' or nothing. + * + * @param {boolean} [skipListeners] + * Skip the componentresize event trigger + * + * @return {number|string} + * The width when getting, zero if there is no width. Can be a string + * postpixed with '%' or 'px'. + */ + ; + + _proto.height = function height(num, skipListeners) { + return this.dimension('height', num, skipListeners); + } + /** + * Set both the width and height of the `Component` element at the same time. + * + * @param {number|string} width + * Width to set the `Component`s element to. + * + * @param {number|string} height + * Height to set the `Component`s element to. + */ + ; + + _proto.dimensions = function dimensions(width, height) { + // Skip componentresize listeners on width for optimization + this.width(width, true); + this.height(height); + } + /** + * Get or set width or height of the `Component` element. This is the shared code + * for the {@link Component#width} and {@link Component#height}. + * + * Things to know: + * - If the width or height in an number this will return the number postfixed with 'px'. + * - If the width/height is a percent this will return the percent postfixed with '%' + * - Hidden elements have a width of 0 with `window.getComputedStyle`. This function + * defaults to the `Component`s `style.width` and falls back to `window.getComputedStyle`. + * See [this]{@link http://www.foliotek.com/devblog/getting-the-width-of-a-hidden-element-with-jquery-using-width/} + * for more information + * - If you want the computed style of the component, use {@link Component#currentWidth} + * and {@link {Component#currentHeight} + * + * @fires Component#componentresize + * + * @param {string} widthOrHeight + 8 'width' or 'height' + * + * @param {number|string} [num] + 8 New dimension + * + * @param {boolean} [skipListeners] + * Skip componentresize event trigger + * + * @return {number} + * The dimension when getting or 0 if unset + */ + ; + + _proto.dimension = function dimension(widthOrHeight, num, skipListeners) { + if (num !== undefined) { + // Set to zero if null or literally NaN (NaN !== NaN) + if (num === null || num !== num) { + num = 0; + } // Check if using css width/height (% or px) and adjust + + + if (('' + num).indexOf('%') !== -1 || ('' + num).indexOf('px') !== -1) { + this.el_.style[widthOrHeight] = num; + } else if (num === 'auto') { + this.el_.style[widthOrHeight] = ''; + } else { + this.el_.style[widthOrHeight] = num + 'px'; + } // skipListeners allows us to avoid triggering the resize event when setting both width and height + + + if (!skipListeners) { + /** + * Triggered when a component is resized. + * + * @event Component#componentresize + * @type {EventTarget~Event} + */ + this.trigger('componentresize'); + } + + return; + } // Not setting a value, so getting it + // Make sure element exists + + + if (!this.el_) { + return 0; + } // Get dimension value from style + + + var val = this.el_.style[widthOrHeight]; + var pxIndex = val.indexOf('px'); + + if (pxIndex !== -1) { + // Return the pixel value with no 'px' + return parseInt(val.slice(0, pxIndex), 10); + } // No px so using % or no style was set, so falling back to offsetWidth/height + // If component has display:none, offset will return 0 + // TODO: handle display:none and no dimension style using px + + + return parseInt(this.el_['offset' + toTitleCase(widthOrHeight)], 10); + } + /** + * Get the computed width or the height of the component's element. + * + * Uses `window.getComputedStyle`. + * + * @param {string} widthOrHeight + * A string containing 'width' or 'height'. Whichever one you want to get. + * + * @return {number} + * The dimension that gets asked for or 0 if nothing was set + * for that dimension. + */ + ; + + _proto.currentDimension = function currentDimension(widthOrHeight) { + var computedWidthOrHeight = 0; + + if (widthOrHeight !== 'width' && widthOrHeight !== 'height') { + throw new Error('currentDimension only accepts width or height value'); + } + + computedWidthOrHeight = computedStyle(this.el_, widthOrHeight); // remove 'px' from variable and parse as integer + + computedWidthOrHeight = parseFloat(computedWidthOrHeight); // if the computed value is still 0, it's possible that the browser is lying + // and we want to check the offset values. + // This code also runs wherever getComputedStyle doesn't exist. + + if (computedWidthOrHeight === 0 || isNaN(computedWidthOrHeight)) { + var rule = "offset" + toTitleCase(widthOrHeight); + computedWidthOrHeight = this.el_[rule]; + } + + return computedWidthOrHeight; + } + /** + * An object that contains width and height values of the `Component`s + * computed style. Uses `window.getComputedStyle`. + * + * @typedef {Object} Component~DimensionObject + * + * @property {number} width + * The width of the `Component`s computed style. + * + * @property {number} height + * The height of the `Component`s computed style. + */ + + /** + * Get an object that contains computed width and height values of the + * component's element. + * + * Uses `window.getComputedStyle`. + * + * @return {Component~DimensionObject} + * The computed dimensions of the component's element. + */ + ; + + _proto.currentDimensions = function currentDimensions() { + return { + width: this.currentDimension('width'), + height: this.currentDimension('height') + }; + } + /** + * Get the computed width of the component's element. + * + * Uses `window.getComputedStyle`. + * + * @return {number} + * The computed width of the component's element. + */ + ; + + _proto.currentWidth = function currentWidth() { + return this.currentDimension('width'); + } + /** + * Get the computed height of the component's element. + * + * Uses `window.getComputedStyle`. + * + * @return {number} + * The computed height of the component's element. + */ + ; + + _proto.currentHeight = function currentHeight() { + return this.currentDimension('height'); + } + /** + * Set the focus to this component + */ + ; + + _proto.focus = function focus() { + this.el_.focus(); + } + /** + * Remove the focus from this component + */ + ; + + _proto.blur = function blur() { + this.el_.blur(); + } + /** + * When this Component receives a `keydown` event which it does not process, + * it passes the event to the Player for handling. + * + * @param {EventTarget~Event} event + * The `keydown` event that caused this function to be called. + */ + ; + + _proto.handleKeyDown = function handleKeyDown(event) { + if (this.player_) { + // We only stop propagation here because we want unhandled events to fall + // back to the browser. + event.stopPropagation(); + this.player_.handleKeyDown(event); + } + } + /** + * Many components used to have a `handleKeyPress` method, which was poorly + * named because it listened to a `keydown` event. This method name now + * delegates to `handleKeyDown`. This means anyone calling `handleKeyPress` + * will not see their method calls stop working. + * + * @param {EventTarget~Event} event + * The event that caused this function to be called. + */ + ; + + _proto.handleKeyPress = function handleKeyPress(event) { + this.handleKeyDown(event); + } + /** + * Emit a 'tap' events when touch event support gets detected. This gets used to + * support toggling the controls through a tap on the video. They get enabled + * because every sub-component would have extra overhead otherwise. + * + * @private + * @fires Component#tap + * @listens Component#touchstart + * @listens Component#touchmove + * @listens Component#touchleave + * @listens Component#touchcancel + * @listens Component#touchend + */ + ; + + _proto.emitTapEvents = function emitTapEvents() { + // Track the start time so we can determine how long the touch lasted + var touchStart = 0; + var firstTouch = null; // Maximum movement allowed during a touch event to still be considered a tap + // Other popular libs use anywhere from 2 (hammer.js) to 15, + // so 10 seems like a nice, round number. + + var tapMovementThreshold = 10; // The maximum length a touch can be while still being considered a tap + + var touchTimeThreshold = 200; + var couldBeTap; + this.on('touchstart', function (event) { + // If more than one finger, don't consider treating this as a click + if (event.touches.length === 1) { + // Copy pageX/pageY from the object + firstTouch = { + pageX: event.touches[0].pageX, + pageY: event.touches[0].pageY + }; // Record start time so we can detect a tap vs. "touch and hold" + + touchStart = window_1.performance.now(); // Reset couldBeTap tracking + + couldBeTap = true; + } + }); + this.on('touchmove', function (event) { + // If more than one finger, don't consider treating this as a click + if (event.touches.length > 1) { + couldBeTap = false; + } else if (firstTouch) { + // Some devices will throw touchmoves for all but the slightest of taps. + // So, if we moved only a small distance, this could still be a tap + var xdiff = event.touches[0].pageX - firstTouch.pageX; + var ydiff = event.touches[0].pageY - firstTouch.pageY; + var touchDistance = Math.sqrt(xdiff * xdiff + ydiff * ydiff); + + if (touchDistance > tapMovementThreshold) { + couldBeTap = false; + } + } + }); + + var noTap = function noTap() { + couldBeTap = false; + }; // TODO: Listen to the original target. http://youtu.be/DujfpXOKUp8?t=13m8s + + + this.on('touchleave', noTap); + this.on('touchcancel', noTap); // When the touch ends, measure how long it took and trigger the appropriate + // event + + this.on('touchend', function (event) { + firstTouch = null; // Proceed only if the touchmove/leave/cancel event didn't happen + + if (couldBeTap === true) { + // Measure how long the touch lasted + var touchTime = window_1.performance.now() - touchStart; // Make sure the touch was less than the threshold to be considered a tap + + if (touchTime < touchTimeThreshold) { + // Don't let browser turn this into a click + event.preventDefault(); + /** + * Triggered when a `Component` is tapped. + * + * @event Component#tap + * @type {EventTarget~Event} + */ + + this.trigger('tap'); // It may be good to copy the touchend event object and change the + // type to tap, if the other event properties aren't exact after + // Events.fixEvent runs (e.g. event.target) + } + } + }); + } + /** + * This function reports user activity whenever touch events happen. This can get + * turned off by any sub-components that wants touch events to act another way. + * + * Report user touch activity when touch events occur. User activity gets used to + * determine when controls should show/hide. It is simple when it comes to mouse + * events, because any mouse event should show the controls. So we capture mouse + * events that bubble up to the player and report activity when that happens. + * With touch events it isn't as easy as `touchstart` and `touchend` toggle player + * controls. So touch events can't help us at the player level either. + * + * User activity gets checked asynchronously. So what could happen is a tap event + * on the video turns the controls off. Then the `touchend` event bubbles up to + * the player. Which, if it reported user activity, would turn the controls right + * back on. We also don't want to completely block touch events from bubbling up. + * Furthermore a `touchmove` event and anything other than a tap, should not turn + * controls back on. + * + * @listens Component#touchstart + * @listens Component#touchmove + * @listens Component#touchend + * @listens Component#touchcancel + */ + ; + + _proto.enableTouchActivity = function enableTouchActivity() { + // Don't continue if the root player doesn't support reporting user activity + if (!this.player() || !this.player().reportUserActivity) { + return; + } // listener for reporting that the user is active + + + var report = bind(this.player(), this.player().reportUserActivity); + var touchHolding; + this.on('touchstart', function () { + report(); // For as long as the they are touching the device or have their mouse down, + // we consider them active even if they're not moving their finger or mouse. + // So we want to continue to update that they are active + + this.clearInterval(touchHolding); // report at the same interval as activityCheck + + touchHolding = this.setInterval(report, 250); + }); + + var touchEnd = function touchEnd(event) { + report(); // stop the interval that maintains activity if the touch is holding + + this.clearInterval(touchHolding); + }; + + this.on('touchmove', report); + this.on('touchend', touchEnd); + this.on('touchcancel', touchEnd); + } + /** + * A callback that has no parameters and is bound into `Component`s context. + * + * @callback Component~GenericCallback + * @this Component + */ + + /** + * Creates a function that runs after an `x` millisecond timeout. This function is a + * wrapper around `window.setTimeout`. There are a few reasons to use this one + * instead though: + * 1. It gets cleared via {@link Component#clearTimeout} when + * {@link Component#dispose} gets called. + * 2. The function callback will gets turned into a {@link Component~GenericCallback} + * + * > Note: You can't use `window.clearTimeout` on the id returned by this function. This + * will cause its dispose listener not to get cleaned up! Please use + * {@link Component#clearTimeout} or {@link Component#dispose} instead. + * + * @param {Component~GenericCallback} fn + * The function that will be run after `timeout`. + * + * @param {number} timeout + * Timeout in milliseconds to delay before executing the specified function. + * + * @return {number} + * Returns a timeout ID that gets used to identify the timeout. It can also + * get used in {@link Component#clearTimeout} to clear the timeout that + * was set. + * + * @listens Component#dispose + * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setTimeout} + */ + ; + + _proto.setTimeout = function setTimeout(fn, timeout) { + var _this2 = this; + + // declare as variables so they are properly available in timeout function + // eslint-disable-next-line + var timeoutId; + fn = bind(this, fn); + this.clearTimersOnDispose_(); + timeoutId = window_1.setTimeout(function () { + if (_this2.setTimeoutIds_.has(timeoutId)) { + _this2.setTimeoutIds_["delete"](timeoutId); + } + + fn(); + }, timeout); + this.setTimeoutIds_.add(timeoutId); + return timeoutId; + } + /** + * Clears a timeout that gets created via `window.setTimeout` or + * {@link Component#setTimeout}. If you set a timeout via {@link Component#setTimeout} + * use this function instead of `window.clearTimout`. If you don't your dispose + * listener will not get cleaned up until {@link Component#dispose}! + * + * @param {number} timeoutId + * The id of the timeout to clear. The return value of + * {@link Component#setTimeout} or `window.setTimeout`. + * + * @return {number} + * Returns the timeout id that was cleared. + * + * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearTimeout} + */ + ; + + _proto.clearTimeout = function clearTimeout(timeoutId) { + if (this.setTimeoutIds_.has(timeoutId)) { + this.setTimeoutIds_["delete"](timeoutId); + window_1.clearTimeout(timeoutId); + } + + return timeoutId; + } + /** + * Creates a function that gets run every `x` milliseconds. This function is a wrapper + * around `window.setInterval`. There are a few reasons to use this one instead though. + * 1. It gets cleared via {@link Component#clearInterval} when + * {@link Component#dispose} gets called. + * 2. The function callback will be a {@link Component~GenericCallback} + * + * @param {Component~GenericCallback} fn + * The function to run every `x` seconds. + * + * @param {number} interval + * Execute the specified function every `x` milliseconds. + * + * @return {number} + * Returns an id that can be used to identify the interval. It can also be be used in + * {@link Component#clearInterval} to clear the interval. + * + * @listens Component#dispose + * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setInterval} + */ + ; + + _proto.setInterval = function setInterval(fn, interval) { + fn = bind(this, fn); + this.clearTimersOnDispose_(); + var intervalId = window_1.setInterval(fn, interval); + this.setIntervalIds_.add(intervalId); + return intervalId; + } + /** + * Clears an interval that gets created via `window.setInterval` or + * {@link Component#setInterval}. If you set an inteval via {@link Component#setInterval} + * use this function instead of `window.clearInterval`. If you don't your dispose + * listener will not get cleaned up until {@link Component#dispose}! + * + * @param {number} intervalId + * The id of the interval to clear. The return value of + * {@link Component#setInterval} or `window.setInterval`. + * + * @return {number} + * Returns the interval id that was cleared. + * + * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearInterval} + */ + ; + + _proto.clearInterval = function clearInterval(intervalId) { + if (this.setIntervalIds_.has(intervalId)) { + this.setIntervalIds_["delete"](intervalId); + window_1.clearInterval(intervalId); + } + + return intervalId; + } + /** + * Queues up a callback to be passed to requestAnimationFrame (rAF), but + * with a few extra bonuses: + * + * - Supports browsers that do not support rAF by falling back to + * {@link Component#setTimeout}. + * + * - The callback is turned into a {@link Component~GenericCallback} (i.e. + * bound to the component). + * + * - Automatic cancellation of the rAF callback is handled if the component + * is disposed before it is called. + * + * @param {Component~GenericCallback} fn + * A function that will be bound to this component and executed just + * before the browser's next repaint. + * + * @return {number} + * Returns an rAF ID that gets used to identify the timeout. It can + * also be used in {@link Component#cancelAnimationFrame} to cancel + * the animation frame callback. + * + * @listens Component#dispose + * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/requestAnimationFrame} + */ + ; + + _proto.requestAnimationFrame = function requestAnimationFrame(fn) { + var _this3 = this; + + // Fall back to using a timer. + if (!this.supportsRaf_) { + return this.setTimeout(fn, 1000 / 60); + } + + this.clearTimersOnDispose_(); // declare as variables so they are properly available in rAF function + // eslint-disable-next-line + + var id; + fn = bind(this, fn); + id = window_1.requestAnimationFrame(function () { + if (_this3.rafIds_.has(id)) { + _this3.rafIds_["delete"](id); + } + + fn(); + }); + this.rafIds_.add(id); + return id; + } + /** + * Cancels a queued callback passed to {@link Component#requestAnimationFrame} + * (rAF). + * + * If you queue an rAF callback via {@link Component#requestAnimationFrame}, + * use this function instead of `window.cancelAnimationFrame`. If you don't, + * your dispose listener will not get cleaned up until {@link Component#dispose}! + * + * @param {number} id + * The rAF ID to clear. The return value of {@link Component#requestAnimationFrame}. + * + * @return {number} + * Returns the rAF ID that was cleared. + * + * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/cancelAnimationFrame} + */ + ; + + _proto.cancelAnimationFrame = function cancelAnimationFrame(id) { + // Fall back to using a timer. + if (!this.supportsRaf_) { + return this.clearTimeout(id); + } + + if (this.rafIds_.has(id)) { + this.rafIds_["delete"](id); + window_1.cancelAnimationFrame(id); + } + + return id; + } + /** + * A function to setup `requestAnimationFrame`, `setTimeout`, + * and `setInterval`, clearing on dispose. + * + * > Previously each timer added and removed dispose listeners on it's own. + * For better performance it was decided to batch them all, and use `Set`s + * to track outstanding timer ids. + * + * @private + */ + ; + + _proto.clearTimersOnDispose_ = function clearTimersOnDispose_() { + var _this4 = this; + + if (this.clearingTimersOnDispose_) { + return; + } + + this.clearingTimersOnDispose_ = true; + this.one('dispose', function () { + [['rafIds_', 'cancelAnimationFrame'], ['setTimeoutIds_', 'clearTimeout'], ['setIntervalIds_', 'clearInterval']].forEach(function (_ref) { + var idName = _ref[0], + cancelName = _ref[1]; + + _this4[idName].forEach(_this4[cancelName], _this4); + }); + _this4.clearingTimersOnDispose_ = false; + }); + } + /** + * Register a `Component` with `videojs` given the name and the component. + * + * > NOTE: {@link Tech}s should not be registered as a `Component`. {@link Tech}s + * should be registered using {@link Tech.registerTech} or + * {@link videojs:videojs.registerTech}. + * + * > NOTE: This function can also be seen on videojs as + * {@link videojs:videojs.registerComponent}. + * + * @param {string} name + * The name of the `Component` to register. + * + * @param {Component} ComponentToRegister + * The `Component` class to register. + * + * @return {Component} + * The `Component` that was registered. + */ + ; + + Component.registerComponent = function registerComponent(name, ComponentToRegister) { + if (typeof name !== 'string' || !name) { + throw new Error("Illegal component name, \"" + name + "\"; must be a non-empty string."); + } + + var Tech = Component.getComponent('Tech'); // We need to make sure this check is only done if Tech has been registered. + + var isTech = Tech && Tech.isTech(ComponentToRegister); + var isComp = Component === ComponentToRegister || Component.prototype.isPrototypeOf(ComponentToRegister.prototype); + + if (isTech || !isComp) { + var reason; + + if (isTech) { + reason = 'techs must be registered using Tech.registerTech()'; + } else { + reason = 'must be a Component subclass'; + } + + throw new Error("Illegal component, \"" + name + "\"; " + reason + "."); + } + + name = toTitleCase(name); + + if (!Component.components_) { + Component.components_ = {}; + } + + var Player = Component.getComponent('Player'); + + if (name === 'Player' && Player && Player.players) { + var players = Player.players; + var playerNames = Object.keys(players); // If we have players that were disposed, then their name will still be + // in Players.players. So, we must loop through and verify that the value + // for each item is not null. This allows registration of the Player component + // after all players have been disposed or before any were created. + + if (players && playerNames.length > 0 && playerNames.map(function (pname) { + return players[pname]; + }).every(Boolean)) { + throw new Error('Can not register Player component after player has been created.'); + } + } + + Component.components_[name] = ComponentToRegister; + Component.components_[toLowerCase(name)] = ComponentToRegister; + return ComponentToRegister; + } + /** + * Get a `Component` based on the name it was registered with. + * + * @param {string} name + * The Name of the component to get. + * + * @return {Component} + * The `Component` that got registered under the given name. + * + * @deprecated In `videojs` 6 this will not return `Component`s that were not + * registered using {@link Component.registerComponent}. Currently we + * check the global `videojs` object for a `Component` name and + * return that if it exists. + */ + ; + + Component.getComponent = function getComponent(name) { + if (!name || !Component.components_) { + return; + } + + return Component.components_[name]; + }; + + return Component; + }(); + /** + * Whether or not this component supports `requestAnimationFrame`. + * + * This is exposed primarily for testing purposes. + * + * @private + * @type {Boolean} + */ + + + Component.prototype.supportsRaf_ = typeof window_1.requestAnimationFrame === 'function' && typeof window_1.cancelAnimationFrame === 'function'; + Component.registerComponent('Component', Component); + + /** + * @file browser.js + * @module browser + */ + var USER_AGENT = window_1.navigator && window_1.navigator.userAgent || ''; + var webkitVersionMap = /AppleWebKit\/([\d.]+)/i.exec(USER_AGENT); + var appleWebkitVersion = webkitVersionMap ? parseFloat(webkitVersionMap.pop()) : null; + /** + * Whether or not this device is an iPod. + * + * @static + * @const + * @type {Boolean} + */ + + var IS_IPOD = /iPod/i.test(USER_AGENT); + /** + * The detected iOS version - or `null`. + * + * @static + * @const + * @type {string|null} + */ + + var IOS_VERSION = function () { + var match = USER_AGENT.match(/OS (\d+)_/i); + + if (match && match[1]) { + return match[1]; + } + + return null; + }(); + /** + * Whether or not this is an Android device. + * + * @static + * @const + * @type {Boolean} + */ + + var IS_ANDROID = /Android/i.test(USER_AGENT); + /** + * The detected Android version - or `null`. + * + * @static + * @const + * @type {number|string|null} + */ + + var ANDROID_VERSION = function () { + // This matches Android Major.Minor.Patch versions + // ANDROID_VERSION is Major.Minor as a Number, if Minor isn't available, then only Major is returned + var match = USER_AGENT.match(/Android (\d+)(?:\.(\d+))?(?:\.(\d+))*/i); + + if (!match) { + return null; + } + + var major = match[1] && parseFloat(match[1]); + var minor = match[2] && parseFloat(match[2]); + + if (major && minor) { + return parseFloat(match[1] + '.' + match[2]); + } else if (major) { + return major; + } + + return null; + }(); + /** + * Whether or not this is a native Android browser. + * + * @static + * @const + * @type {Boolean} + */ + + var IS_NATIVE_ANDROID = IS_ANDROID && ANDROID_VERSION < 5 && appleWebkitVersion < 537; + /** + * Whether or not this is Mozilla Firefox. + * + * @static + * @const + * @type {Boolean} + */ + + var IS_FIREFOX = /Firefox/i.test(USER_AGENT); + /** + * Whether or not this is Microsoft Edge. + * + * @static + * @const + * @type {Boolean} + */ + + var IS_EDGE = /Edg/i.test(USER_AGENT); + /** + * Whether or not this is Google Chrome. + * + * This will also be `true` for Chrome on iOS, which will have different support + * as it is actually Safari under the hood. + * + * @static + * @const + * @type {Boolean} + */ + + var IS_CHROME = !IS_EDGE && (/Chrome/i.test(USER_AGENT) || /CriOS/i.test(USER_AGENT)); + /** + * The detected Google Chrome version - or `null`. + * + * @static + * @const + * @type {number|null} + */ + + var CHROME_VERSION = function () { + var match = USER_AGENT.match(/(Chrome|CriOS)\/(\d+)/); + + if (match && match[2]) { + return parseFloat(match[2]); + } + + return null; + }(); + /** + * The detected Internet Explorer version - or `null`. + * + * @static + * @const + * @type {number|null} + */ + + var IE_VERSION = function () { + var result = /MSIE\s(\d+)\.\d/.exec(USER_AGENT); + var version = result && parseFloat(result[1]); + + if (!version && /Trident\/7.0/i.test(USER_AGENT) && /rv:11.0/.test(USER_AGENT)) { + // IE 11 has a different user agent string than other IE versions + version = 11.0; + } + + return version; + }(); + /** + * Whether or not this is desktop Safari. + * + * @static + * @const + * @type {Boolean} + */ + + var IS_SAFARI = /Safari/i.test(USER_AGENT) && !IS_CHROME && !IS_ANDROID && !IS_EDGE; + /** + * Whether or not this is a Windows machine. + * + * @static + * @const + * @type {Boolean} + */ + + var IS_WINDOWS = /Windows/i.test(USER_AGENT); + /** + * Whether or not this device is touch-enabled. + * + * @static + * @const + * @type {Boolean} + */ + + var TOUCH_ENABLED = isReal() && ('ontouchstart' in window_1 || window_1.navigator.maxTouchPoints || window_1.DocumentTouch && window_1.document instanceof window_1.DocumentTouch); + /** + * Whether or not this device is an iPad. + * + * @static + * @const + * @type {Boolean} + */ + + var IS_IPAD = /iPad/i.test(USER_AGENT) || IS_SAFARI && TOUCH_ENABLED && !/iPhone/i.test(USER_AGENT); + /** + * Whether or not this device is an iPhone. + * + * @static + * @const + * @type {Boolean} + */ + // The Facebook app's UIWebView identifies as both an iPhone and iPad, so + // to identify iPhones, we need to exclude iPads. + // http://artsy.github.io/blog/2012/10/18/the-perils-of-ios-user-agent-sniffing/ + + var IS_IPHONE = /iPhone/i.test(USER_AGENT) && !IS_IPAD; + /** + * Whether or not this is an iOS device. + * + * @static + * @const + * @type {Boolean} + */ + + var IS_IOS = IS_IPHONE || IS_IPAD || IS_IPOD; + /** + * Whether or not this is any flavor of Safari - including iOS. + * + * @static + * @const + * @type {Boolean} + */ + + var IS_ANY_SAFARI = (IS_SAFARI || IS_IOS) && !IS_CHROME; + + var browser = /*#__PURE__*/Object.freeze({ + __proto__: null, + IS_IPOD: IS_IPOD, + IOS_VERSION: IOS_VERSION, + IS_ANDROID: IS_ANDROID, + ANDROID_VERSION: ANDROID_VERSION, + IS_NATIVE_ANDROID: IS_NATIVE_ANDROID, + IS_FIREFOX: IS_FIREFOX, + IS_EDGE: IS_EDGE, + IS_CHROME: IS_CHROME, + CHROME_VERSION: CHROME_VERSION, + IE_VERSION: IE_VERSION, + IS_SAFARI: IS_SAFARI, + IS_WINDOWS: IS_WINDOWS, + TOUCH_ENABLED: TOUCH_ENABLED, + IS_IPAD: IS_IPAD, + IS_IPHONE: IS_IPHONE, + IS_IOS: IS_IOS, + IS_ANY_SAFARI: IS_ANY_SAFARI + }); + + /** + * @file time-ranges.js + * @module time-ranges + */ + + /** + * Returns the time for the specified index at the start or end + * of a TimeRange object. + * + * @typedef {Function} TimeRangeIndex + * + * @param {number} [index=0] + * The range number to return the time for. + * + * @return {number} + * The time offset at the specified index. + * + * @deprecated The index argument must be provided. + * In the future, leaving it out will throw an error. + */ + + /** + * An object that contains ranges of time. + * + * @typedef {Object} TimeRange + * + * @property {number} length + * The number of time ranges represented by this object. + * + * @property {module:time-ranges~TimeRangeIndex} start + * Returns the time offset at which a specified time range begins. + * + * @property {module:time-ranges~TimeRangeIndex} end + * Returns the time offset at which a specified time range ends. + * + * @see https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges + */ + + /** + * Check if any of the time ranges are over the maximum index. + * + * @private + * @param {string} fnName + * The function name to use for logging + * + * @param {number} index + * The index to check + * + * @param {number} maxIndex + * The maximum possible index + * + * @throws {Error} if the timeRanges provided are over the maxIndex + */ + function rangeCheck(fnName, index, maxIndex) { + if (typeof index !== 'number' || index < 0 || index > maxIndex) { + throw new Error("Failed to execute '" + fnName + "' on 'TimeRanges': The index provided (" + index + ") is non-numeric or out of bounds (0-" + maxIndex + ")."); + } + } + /** + * Get the time for the specified index at the start or end + * of a TimeRange object. + * + * @private + * @param {string} fnName + * The function name to use for logging + * + * @param {string} valueIndex + * The property that should be used to get the time. should be + * 'start' or 'end' + * + * @param {Array} ranges + * An array of time ranges + * + * @param {Array} [rangeIndex=0] + * The index to start the search at + * + * @return {number} + * The time that offset at the specified index. + * + * @deprecated rangeIndex must be set to a value, in the future this will throw an error. + * @throws {Error} if rangeIndex is more than the length of ranges + */ + + + function getRange(fnName, valueIndex, ranges, rangeIndex) { + rangeCheck(fnName, rangeIndex, ranges.length - 1); + return ranges[rangeIndex][valueIndex]; + } + /** + * Create a time range object given ranges of time. + * + * @private + * @param {Array} [ranges] + * An array of time ranges. + */ + + + function createTimeRangesObj(ranges) { + if (ranges === undefined || ranges.length === 0) { + return { + length: 0, + start: function start() { + throw new Error('This TimeRanges object is empty'); + }, + end: function end() { + throw new Error('This TimeRanges object is empty'); + } + }; + } + + return { + length: ranges.length, + start: getRange.bind(null, 'start', 0, ranges), + end: getRange.bind(null, 'end', 1, ranges) + }; + } + /** + * Create a `TimeRange` object which mimics an + * {@link https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges|HTML5 TimeRanges instance}. + * + * @param {number|Array[]} start + * The start of a single range (a number) or an array of ranges (an + * array of arrays of two numbers each). + * + * @param {number} end + * The end of a single range. Cannot be used with the array form of + * the `start` argument. + */ + + + function createTimeRanges(start, end) { + if (Array.isArray(start)) { + return createTimeRangesObj(start); + } else if (start === undefined || end === undefined) { + return createTimeRangesObj(); + } + + return createTimeRangesObj([[start, end]]); + } + + /** + * @file buffer.js + * @module buffer + */ + /** + * Compute the percentage of the media that has been buffered. + * + * @param {TimeRange} buffered + * The current `TimeRange` object representing buffered time ranges + * + * @param {number} duration + * Total duration of the media + * + * @return {number} + * Percent buffered of the total duration in decimal form. + */ + + function bufferedPercent(buffered, duration) { + var bufferedDuration = 0; + var start; + var end; + + if (!duration) { + return 0; + } + + if (!buffered || !buffered.length) { + buffered = createTimeRanges(0, 0); + } + + for (var i = 0; i < buffered.length; i++) { + start = buffered.start(i); + end = buffered.end(i); // buffered end can be bigger than duration by a very small fraction + + if (end > duration) { + end = duration; + } + + bufferedDuration += end - start; + } + + return bufferedDuration / duration; + } + + /** + * @file fullscreen-api.js + * @module fullscreen-api + * @private + */ + /** + * Store the browser-specific methods for the fullscreen API. + * + * @type {Object} + * @see [Specification]{@link https://fullscreen.spec.whatwg.org} + * @see [Map Approach From Screenfull.js]{@link https://github.com/sindresorhus/screenfull.js} + */ + + var FullscreenApi = { + prefixed: true + }; // browser API methods + + var apiMap = [['requestFullscreen', 'exitFullscreen', 'fullscreenElement', 'fullscreenEnabled', 'fullscreenchange', 'fullscreenerror', 'fullscreen'], // WebKit + ['webkitRequestFullscreen', 'webkitExitFullscreen', 'webkitFullscreenElement', 'webkitFullscreenEnabled', 'webkitfullscreenchange', 'webkitfullscreenerror', '-webkit-full-screen'], // Mozilla + ['mozRequestFullScreen', 'mozCancelFullScreen', 'mozFullScreenElement', 'mozFullScreenEnabled', 'mozfullscreenchange', 'mozfullscreenerror', '-moz-full-screen'], // Microsoft + ['msRequestFullscreen', 'msExitFullscreen', 'msFullscreenElement', 'msFullscreenEnabled', 'MSFullscreenChange', 'MSFullscreenError', '-ms-fullscreen']]; + var specApi = apiMap[0]; + var browserApi; // determine the supported set of functions + + for (var i = 0; i < apiMap.length; i++) { + // check for exitFullscreen function + if (apiMap[i][1] in document_1) { + browserApi = apiMap[i]; + break; + } + } // map the browser API names to the spec API names + + + if (browserApi) { + for (var _i = 0; _i < browserApi.length; _i++) { + FullscreenApi[specApi[_i]] = browserApi[_i]; + } + + FullscreenApi.prefixed = browserApi[0] !== specApi[0]; + } + + /** + * @file media-error.js + */ + /** + * A Custom `MediaError` class which mimics the standard HTML5 `MediaError` class. + * + * @param {number|string|Object|MediaError} value + * This can be of multiple types: + * - number: should be a standard error code + * - string: an error message (the code will be 0) + * - Object: arbitrary properties + * - `MediaError` (native): used to populate a video.js `MediaError` object + * - `MediaError` (video.js): will return itself if it's already a + * video.js `MediaError` object. + * + * @see [MediaError Spec]{@link https://dev.w3.org/html5/spec-author-view/video.html#mediaerror} + * @see [Encrypted MediaError Spec]{@link https://www.w3.org/TR/2013/WD-encrypted-media-20130510/#error-codes} + * + * @class MediaError + */ + + function MediaError(value) { + // Allow redundant calls to this constructor to avoid having `instanceof` + // checks peppered around the code. + if (value instanceof MediaError) { + return value; + } + + if (typeof value === 'number') { + this.code = value; + } else if (typeof value === 'string') { + // default code is zero, so this is a custom error + this.message = value; + } else if (isObject$1(value)) { + // We assign the `code` property manually because native `MediaError` objects + // do not expose it as an own/enumerable property of the object. + if (typeof value.code === 'number') { + this.code = value.code; + } + + assign(this, value); + } + + if (!this.message) { + this.message = MediaError.defaultMessages[this.code] || ''; + } + } + /** + * The error code that refers two one of the defined `MediaError` types + * + * @type {Number} + */ + + + MediaError.prototype.code = 0; + /** + * An optional message that to show with the error. Message is not part of the HTML5 + * video spec but allows for more informative custom errors. + * + * @type {String} + */ + + MediaError.prototype.message = ''; + /** + * An optional status code that can be set by plugins to allow even more detail about + * the error. For example a plugin might provide a specific HTTP status code and an + * error message for that code. Then when the plugin gets that error this class will + * know how to display an error message for it. This allows a custom message to show + * up on the `Player` error overlay. + * + * @type {Array} + */ + + MediaError.prototype.status = null; + /** + * Errors indexed by the W3C standard. The order **CANNOT CHANGE**! See the + * specification listed under {@link MediaError} for more information. + * + * @enum {array} + * @readonly + * @property {string} 0 - MEDIA_ERR_CUSTOM + * @property {string} 1 - MEDIA_ERR_ABORTED + * @property {string} 2 - MEDIA_ERR_NETWORK + * @property {string} 3 - MEDIA_ERR_DECODE + * @property {string} 4 - MEDIA_ERR_SRC_NOT_SUPPORTED + * @property {string} 5 - MEDIA_ERR_ENCRYPTED + */ + + MediaError.errorTypes = ['MEDIA_ERR_CUSTOM', 'MEDIA_ERR_ABORTED', 'MEDIA_ERR_NETWORK', 'MEDIA_ERR_DECODE', 'MEDIA_ERR_SRC_NOT_SUPPORTED', 'MEDIA_ERR_ENCRYPTED']; + /** + * The default `MediaError` messages based on the {@link MediaError.errorTypes}. + * + * @type {Array} + * @constant + */ + + MediaError.defaultMessages = { + 1: 'You aborted the media playback', + 2: 'A network error caused the media download to fail part-way.', + 3: 'The media playback was aborted due to a corruption problem or because the media used features your browser did not support.', + 4: 'The media could not be loaded, either because the server or network failed or because the format is not supported.', + 5: 'The media is encrypted and we do not have the keys to decrypt it.' + }; // Add types as properties on MediaError + // e.g. MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED = 4; + + for (var errNum = 0; errNum < MediaError.errorTypes.length; errNum++) { + MediaError[MediaError.errorTypes[errNum]] = errNum; // values should be accessible on both the class and instance + + MediaError.prototype[MediaError.errorTypes[errNum]] = errNum; + } // jsdocs for instance/static members added above + + /** + * Returns whether an object is `Promise`-like (i.e. has a `then` method). + * + * @param {Object} value + * An object that may or may not be `Promise`-like. + * + * @return {boolean} + * Whether or not the object is `Promise`-like. + */ + function isPromise(value) { + return value !== undefined && value !== null && typeof value.then === 'function'; + } + /** + * Silence a Promise-like object. + * + * This is useful for avoiding non-harmful, but potentially confusing "uncaught + * play promise" rejection error messages. + * + * @param {Object} value + * An object that may or may not be `Promise`-like. + */ + + function silencePromise(value) { + if (isPromise(value)) { + value.then(null, function (e) {}); + } + } + + /** + * @file text-track-list-converter.js Utilities for capturing text track state and + * re-creating tracks based on a capture. + * + * @module text-track-list-converter + */ + + /** + * Examine a single {@link TextTrack} and return a JSON-compatible javascript object that + * represents the {@link TextTrack}'s state. + * + * @param {TextTrack} track + * The text track to query. + * + * @return {Object} + * A serializable javascript representation of the TextTrack. + * @private + */ + var trackToJson_ = function trackToJson_(track) { + var ret = ['kind', 'label', 'language', 'id', 'inBandMetadataTrackDispatchType', 'mode', 'src'].reduce(function (acc, prop, i) { + if (track[prop]) { + acc[prop] = track[prop]; + } + + return acc; + }, { + cues: track.cues && Array.prototype.map.call(track.cues, function (cue) { + return { + startTime: cue.startTime, + endTime: cue.endTime, + text: cue.text, + id: cue.id + }; + }) + }); + return ret; + }; + /** + * Examine a {@link Tech} and return a JSON-compatible javascript array that represents the + * state of all {@link TextTrack}s currently configured. The return array is compatible with + * {@link text-track-list-converter:jsonToTextTracks}. + * + * @param {Tech} tech + * The tech object to query + * + * @return {Array} + * A serializable javascript representation of the {@link Tech}s + * {@link TextTrackList}. + */ + + + var textTracksToJson = function textTracksToJson(tech) { + var trackEls = tech.$$('track'); + var trackObjs = Array.prototype.map.call(trackEls, function (t) { + return t.track; + }); + var tracks = Array.prototype.map.call(trackEls, function (trackEl) { + var json = trackToJson_(trackEl.track); + + if (trackEl.src) { + json.src = trackEl.src; + } + + return json; + }); + return tracks.concat(Array.prototype.filter.call(tech.textTracks(), function (track) { + return trackObjs.indexOf(track) === -1; + }).map(trackToJson_)); + }; + /** + * Create a set of remote {@link TextTrack}s on a {@link Tech} based on an array of javascript + * object {@link TextTrack} representations. + * + * @param {Array} json + * An array of `TextTrack` representation objects, like those that would be + * produced by `textTracksToJson`. + * + * @param {Tech} tech + * The `Tech` to create the `TextTrack`s on. + */ + + + var jsonToTextTracks = function jsonToTextTracks(json, tech) { + json.forEach(function (track) { + var addedTrack = tech.addRemoteTextTrack(track).track; + + if (!track.src && track.cues) { + track.cues.forEach(function (cue) { + return addedTrack.addCue(cue); + }); + } + }); + return tech.textTracks(); + }; + + var textTrackConverter = { + textTracksToJson: textTracksToJson, + jsonToTextTracks: jsonToTextTracks, + trackToJson_: trackToJson_ + }; + + var MODAL_CLASS_NAME = 'vjs-modal-dialog'; + /** + * The `ModalDialog` displays over the video and its controls, which blocks + * interaction with the player until it is closed. + * + * Modal dialogs include a "Close" button and will close when that button + * is activated - or when ESC is pressed anywhere. + * + * @extends Component + */ + + var ModalDialog = /*#__PURE__*/function (_Component) { + inheritsLoose(ModalDialog, _Component); + + /** + * Create an instance of this class. + * + * @param {Player} player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + * + * @param {Mixed} [options.content=undefined] + * Provide customized content for this modal. + * + * @param {string} [options.description] + * A text description for the modal, primarily for accessibility. + * + * @param {boolean} [options.fillAlways=false] + * Normally, modals are automatically filled only the first time + * they open. This tells the modal to refresh its content + * every time it opens. + * + * @param {string} [options.label] + * A text label for the modal, primarily for accessibility. + * + * @param {boolean} [options.pauseOnOpen=true] + * If `true`, playback will will be paused if playing when + * the modal opens, and resumed when it closes. + * + * @param {boolean} [options.temporary=true] + * If `true`, the modal can only be opened once; it will be + * disposed as soon as it's closed. + * + * @param {boolean} [options.uncloseable=false] + * If `true`, the user will not be able to close the modal + * through the UI in the normal ways. Programmatic closing is + * still possible. + */ + function ModalDialog(player, options) { + var _this; + + _this = _Component.call(this, player, options) || this; + _this.opened_ = _this.hasBeenOpened_ = _this.hasBeenFilled_ = false; + + _this.closeable(!_this.options_.uncloseable); + + _this.content(_this.options_.content); // Make sure the contentEl is defined AFTER any children are initialized + // because we only want the contents of the modal in the contentEl + // (not the UI elements like the close button). + + + _this.contentEl_ = createEl('div', { + className: MODAL_CLASS_NAME + "-content" + }, { + role: 'document' + }); + _this.descEl_ = createEl('p', { + className: MODAL_CLASS_NAME + "-description vjs-control-text", + id: _this.el().getAttribute('aria-describedby') + }); + textContent(_this.descEl_, _this.description()); + + _this.el_.appendChild(_this.descEl_); + + _this.el_.appendChild(_this.contentEl_); + + return _this; + } + /** + * Create the `ModalDialog`'s DOM element + * + * @return {Element} + * The DOM element that gets created. + */ + + + var _proto = ModalDialog.prototype; + + _proto.createEl = function createEl() { + return _Component.prototype.createEl.call(this, 'div', { + className: this.buildCSSClass(), + tabIndex: -1 + }, { + 'aria-describedby': this.id() + "_description", + 'aria-hidden': 'true', + 'aria-label': this.label(), + 'role': 'dialog' + }); + }; + + _proto.dispose = function dispose() { + this.contentEl_ = null; + this.descEl_ = null; + this.previouslyActiveEl_ = null; + + _Component.prototype.dispose.call(this); + } + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. + */ + ; + + _proto.buildCSSClass = function buildCSSClass() { + return MODAL_CLASS_NAME + " vjs-hidden " + _Component.prototype.buildCSSClass.call(this); + } + /** + * Returns the label string for this modal. Primarily used for accessibility. + * + * @return {string} + * the localized or raw label of this modal. + */ + ; + + _proto.label = function label() { + return this.localize(this.options_.label || 'Modal Window'); + } + /** + * Returns the description string for this modal. Primarily used for + * accessibility. + * + * @return {string} + * The localized or raw description of this modal. + */ + ; + + _proto.description = function description() { + var desc = this.options_.description || this.localize('This is a modal window.'); // Append a universal closeability message if the modal is closeable. + + if (this.closeable()) { + desc += ' ' + this.localize('This modal can be closed by pressing the Escape key or activating the close button.'); + } + + return desc; + } + /** + * Opens the modal. + * + * @fires ModalDialog#beforemodalopen + * @fires ModalDialog#modalopen + */ + ; + + _proto.open = function open() { + if (!this.opened_) { + var player = this.player(); + /** + * Fired just before a `ModalDialog` is opened. + * + * @event ModalDialog#beforemodalopen + * @type {EventTarget~Event} + */ + + this.trigger('beforemodalopen'); + this.opened_ = true; // Fill content if the modal has never opened before and + // never been filled. + + if (this.options_.fillAlways || !this.hasBeenOpened_ && !this.hasBeenFilled_) { + this.fill(); + } // If the player was playing, pause it and take note of its previously + // playing state. + + + this.wasPlaying_ = !player.paused(); + + if (this.options_.pauseOnOpen && this.wasPlaying_) { + player.pause(); + } + + this.on('keydown', this.handleKeyDown); // Hide controls and note if they were enabled. + + this.hadControls_ = player.controls(); + player.controls(false); + this.show(); + this.conditionalFocus_(); + this.el().setAttribute('aria-hidden', 'false'); + /** + * Fired just after a `ModalDialog` is opened. + * + * @event ModalDialog#modalopen + * @type {EventTarget~Event} + */ + + this.trigger('modalopen'); + this.hasBeenOpened_ = true; + } + } + /** + * If the `ModalDialog` is currently open or closed. + * + * @param {boolean} [value] + * If given, it will open (`true`) or close (`false`) the modal. + * + * @return {boolean} + * the current open state of the modaldialog + */ + ; + + _proto.opened = function opened(value) { + if (typeof value === 'boolean') { + this[value ? 'open' : 'close'](); + } + + return this.opened_; + } + /** + * Closes the modal, does nothing if the `ModalDialog` is + * not open. + * + * @fires ModalDialog#beforemodalclose + * @fires ModalDialog#modalclose + */ + ; + + _proto.close = function close() { + if (!this.opened_) { + return; + } + + var player = this.player(); + /** + * Fired just before a `ModalDialog` is closed. + * + * @event ModalDialog#beforemodalclose + * @type {EventTarget~Event} + */ + + this.trigger('beforemodalclose'); + this.opened_ = false; + + if (this.wasPlaying_ && this.options_.pauseOnOpen) { + player.play(); + } + + this.off('keydown', this.handleKeyDown); + + if (this.hadControls_) { + player.controls(true); + } + + this.hide(); + this.el().setAttribute('aria-hidden', 'true'); + /** + * Fired just after a `ModalDialog` is closed. + * + * @event ModalDialog#modalclose + * @type {EventTarget~Event} + */ + + this.trigger('modalclose'); + this.conditionalBlur_(); + + if (this.options_.temporary) { + this.dispose(); + } + } + /** + * Check to see if the `ModalDialog` is closeable via the UI. + * + * @param {boolean} [value] + * If given as a boolean, it will set the `closeable` option. + * + * @return {boolean} + * Returns the final value of the closable option. + */ + ; + + _proto.closeable = function closeable(value) { + if (typeof value === 'boolean') { + var closeable = this.closeable_ = !!value; + var close = this.getChild('closeButton'); // If this is being made closeable and has no close button, add one. + + if (closeable && !close) { + // The close button should be a child of the modal - not its + // content element, so temporarily change the content element. + var temp = this.contentEl_; + this.contentEl_ = this.el_; + close = this.addChild('closeButton', { + controlText: 'Close Modal Dialog' + }); + this.contentEl_ = temp; + this.on(close, 'close', this.close); + } // If this is being made uncloseable and has a close button, remove it. + + + if (!closeable && close) { + this.off(close, 'close', this.close); + this.removeChild(close); + close.dispose(); + } + } + + return this.closeable_; + } + /** + * Fill the modal's content element with the modal's "content" option. + * The content element will be emptied before this change takes place. + */ + ; + + _proto.fill = function fill() { + this.fillWith(this.content()); + } + /** + * Fill the modal's content element with arbitrary content. + * The content element will be emptied before this change takes place. + * + * @fires ModalDialog#beforemodalfill + * @fires ModalDialog#modalfill + * + * @param {Mixed} [content] + * The same rules apply to this as apply to the `content` option. + */ + ; + + _proto.fillWith = function fillWith(content) { + var contentEl = this.contentEl(); + var parentEl = contentEl.parentNode; + var nextSiblingEl = contentEl.nextSibling; + /** + * Fired just before a `ModalDialog` is filled with content. + * + * @event ModalDialog#beforemodalfill + * @type {EventTarget~Event} + */ + + this.trigger('beforemodalfill'); + this.hasBeenFilled_ = true; // Detach the content element from the DOM before performing + // manipulation to avoid modifying the live DOM multiple times. + + parentEl.removeChild(contentEl); + this.empty(); + insertContent(contentEl, content); + /** + * Fired just after a `ModalDialog` is filled with content. + * + * @event ModalDialog#modalfill + * @type {EventTarget~Event} + */ + + this.trigger('modalfill'); // Re-inject the re-filled content element. + + if (nextSiblingEl) { + parentEl.insertBefore(contentEl, nextSiblingEl); + } else { + parentEl.appendChild(contentEl); + } // make sure that the close button is last in the dialog DOM + + + var closeButton = this.getChild('closeButton'); + + if (closeButton) { + parentEl.appendChild(closeButton.el_); + } + } + /** + * Empties the content element. This happens anytime the modal is filled. + * + * @fires ModalDialog#beforemodalempty + * @fires ModalDialog#modalempty + */ + ; + + _proto.empty = function empty() { + /** + * Fired just before a `ModalDialog` is emptied. + * + * @event ModalDialog#beforemodalempty + * @type {EventTarget~Event} + */ + this.trigger('beforemodalempty'); + emptyEl(this.contentEl()); + /** + * Fired just after a `ModalDialog` is emptied. + * + * @event ModalDialog#modalempty + * @type {EventTarget~Event} + */ + + this.trigger('modalempty'); + } + /** + * Gets or sets the modal content, which gets normalized before being + * rendered into the DOM. + * + * This does not update the DOM or fill the modal, but it is called during + * that process. + * + * @param {Mixed} [value] + * If defined, sets the internal content value to be used on the + * next call(s) to `fill`. This value is normalized before being + * inserted. To "clear" the internal content value, pass `null`. + * + * @return {Mixed} + * The current content of the modal dialog + */ + ; + + _proto.content = function content(value) { + if (typeof value !== 'undefined') { + this.content_ = value; + } + + return this.content_; + } + /** + * conditionally focus the modal dialog if focus was previously on the player. + * + * @private + */ + ; + + _proto.conditionalFocus_ = function conditionalFocus_() { + var activeEl = document_1.activeElement; + var playerEl = this.player_.el_; + this.previouslyActiveEl_ = null; + + if (playerEl.contains(activeEl) || playerEl === activeEl) { + this.previouslyActiveEl_ = activeEl; + this.focus(); + } + } + /** + * conditionally blur the element and refocus the last focused element + * + * @private + */ + ; + + _proto.conditionalBlur_ = function conditionalBlur_() { + if (this.previouslyActiveEl_) { + this.previouslyActiveEl_.focus(); + this.previouslyActiveEl_ = null; + } + } + /** + * Keydown handler. Attached when modal is focused. + * + * @listens keydown + */ + ; + + _proto.handleKeyDown = function handleKeyDown(event) { + // Do not allow keydowns to reach out of the modal dialog. + event.stopPropagation(); + + if (keycode.isEventKey(event, 'Escape') && this.closeable()) { + event.preventDefault(); + this.close(); + return; + } // exit early if it isn't a tab key + + + if (!keycode.isEventKey(event, 'Tab')) { + return; + } + + var focusableEls = this.focusableEls_(); + var activeEl = this.el_.querySelector(':focus'); + var focusIndex; + + for (var i = 0; i < focusableEls.length; i++) { + if (activeEl === focusableEls[i]) { + focusIndex = i; + break; + } + } + + if (document_1.activeElement === this.el_) { + focusIndex = 0; + } + + if (event.shiftKey && focusIndex === 0) { + focusableEls[focusableEls.length - 1].focus(); + event.preventDefault(); + } else if (!event.shiftKey && focusIndex === focusableEls.length - 1) { + focusableEls[0].focus(); + event.preventDefault(); + } + } + /** + * get all focusable elements + * + * @private + */ + ; + + _proto.focusableEls_ = function focusableEls_() { + var allChildren = this.el_.querySelectorAll('*'); + return Array.prototype.filter.call(allChildren, function (child) { + return (child instanceof window_1.HTMLAnchorElement || child instanceof window_1.HTMLAreaElement) && child.hasAttribute('href') || (child instanceof window_1.HTMLInputElement || child instanceof window_1.HTMLSelectElement || child instanceof window_1.HTMLTextAreaElement || child instanceof window_1.HTMLButtonElement) && !child.hasAttribute('disabled') || child instanceof window_1.HTMLIFrameElement || child instanceof window_1.HTMLObjectElement || child instanceof window_1.HTMLEmbedElement || child.hasAttribute('tabindex') && child.getAttribute('tabindex') !== -1 || child.hasAttribute('contenteditable'); + }); + }; + + return ModalDialog; + }(Component); + /** + * Default options for `ModalDialog` default options. + * + * @type {Object} + * @private + */ + + + ModalDialog.prototype.options_ = { + pauseOnOpen: true, + temporary: true + }; + Component.registerComponent('ModalDialog', ModalDialog); + + /** + * Common functionaliy between {@link TextTrackList}, {@link AudioTrackList}, and + * {@link VideoTrackList} + * + * @extends EventTarget + */ + + var TrackList = /*#__PURE__*/function (_EventTarget) { + inheritsLoose(TrackList, _EventTarget); + + /** + * Create an instance of this class + * + * @param {Track[]} tracks + * A list of tracks to initialize the list with. + * + * @abstract + */ + function TrackList(tracks) { + var _this; + + if (tracks === void 0) { + tracks = []; + } + + _this = _EventTarget.call(this) || this; + _this.tracks_ = []; + /** + * @memberof TrackList + * @member {number} length + * The current number of `Track`s in the this Trackist. + * @instance + */ + + Object.defineProperty(assertThisInitialized(_this), 'length', { + get: function get() { + return this.tracks_.length; + } + }); + + for (var i = 0; i < tracks.length; i++) { + _this.addTrack(tracks[i]); + } + + return _this; + } + /** + * Add a {@link Track} to the `TrackList` + * + * @param {Track} track + * The audio, video, or text track to add to the list. + * + * @fires TrackList#addtrack + */ + + + var _proto = TrackList.prototype; + + _proto.addTrack = function addTrack(track) { + var index = this.tracks_.length; + + if (!('' + index in this)) { + Object.defineProperty(this, index, { + get: function get() { + return this.tracks_[index]; + } + }); + } // Do not add duplicate tracks + + + if (this.tracks_.indexOf(track) === -1) { + this.tracks_.push(track); + /** + * Triggered when a track is added to a track list. + * + * @event TrackList#addtrack + * @type {EventTarget~Event} + * @property {Track} track + * A reference to track that was added. + */ + + this.trigger({ + track: track, + type: 'addtrack', + target: this + }); + } + } + /** + * Remove a {@link Track} from the `TrackList` + * + * @param {Track} rtrack + * The audio, video, or text track to remove from the list. + * + * @fires TrackList#removetrack + */ + ; + + _proto.removeTrack = function removeTrack(rtrack) { + var track; + + for (var i = 0, l = this.length; i < l; i++) { + if (this[i] === rtrack) { + track = this[i]; + + if (track.off) { + track.off(); + } + + this.tracks_.splice(i, 1); + break; + } + } + + if (!track) { + return; + } + /** + * Triggered when a track is removed from track list. + * + * @event TrackList#removetrack + * @type {EventTarget~Event} + * @property {Track} track + * A reference to track that was removed. + */ + + + this.trigger({ + track: track, + type: 'removetrack', + target: this + }); + } + /** + * Get a Track from the TrackList by a tracks id + * + * @param {string} id - the id of the track to get + * @method getTrackById + * @return {Track} + * @private + */ + ; + + _proto.getTrackById = function getTrackById(id) { + var result = null; + + for (var i = 0, l = this.length; i < l; i++) { + var track = this[i]; + + if (track.id === id) { + result = track; + break; + } + } + + return result; + }; + + return TrackList; + }(EventTarget); + /** + * Triggered when a different track is selected/enabled. + * + * @event TrackList#change + * @type {EventTarget~Event} + */ + + /** + * Events that can be called with on + eventName. See {@link EventHandler}. + * + * @property {Object} TrackList#allowedEvents_ + * @private + */ + + + TrackList.prototype.allowedEvents_ = { + change: 'change', + addtrack: 'addtrack', + removetrack: 'removetrack' + }; // emulate attribute EventHandler support to allow for feature detection + + for (var event in TrackList.prototype.allowedEvents_) { + TrackList.prototype['on' + event] = null; + } + + /** + * Anywhere we call this function we diverge from the spec + * as we only support one enabled audiotrack at a time + * + * @param {AudioTrackList} list + * list to work on + * + * @param {AudioTrack} track + * The track to skip + * + * @private + */ + + var disableOthers = function disableOthers(list, track) { + for (var i = 0; i < list.length; i++) { + if (!Object.keys(list[i]).length || track.id === list[i].id) { + continue; + } // another audio track is enabled, disable it + + + list[i].enabled = false; + } + }; + /** + * The current list of {@link AudioTrack} for a media file. + * + * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist} + * @extends TrackList + */ + + + var AudioTrackList = /*#__PURE__*/function (_TrackList) { + inheritsLoose(AudioTrackList, _TrackList); + + /** + * Create an instance of this class. + * + * @param {AudioTrack[]} [tracks=[]] + * A list of `AudioTrack` to instantiate the list with. + */ + function AudioTrackList(tracks) { + var _this; + + if (tracks === void 0) { + tracks = []; + } + + // make sure only 1 track is enabled + // sorted from last index to first index + for (var i = tracks.length - 1; i >= 0; i--) { + if (tracks[i].enabled) { + disableOthers(tracks, tracks[i]); + break; + } + } + + _this = _TrackList.call(this, tracks) || this; + _this.changing_ = false; + return _this; + } + /** + * Add an {@link AudioTrack} to the `AudioTrackList`. + * + * @param {AudioTrack} track + * The AudioTrack to add to the list + * + * @fires TrackList#addtrack + */ + + + var _proto = AudioTrackList.prototype; + + _proto.addTrack = function addTrack(track) { + var _this2 = this; + + if (track.enabled) { + disableOthers(this, track); + } + + _TrackList.prototype.addTrack.call(this, track); // native tracks don't have this + + + if (!track.addEventListener) { + return; + } + + track.enabledChange_ = function () { + // when we are disabling other tracks (since we don't support + // more than one track at a time) we will set changing_ + // to true so that we don't trigger additional change events + if (_this2.changing_) { + return; + } + + _this2.changing_ = true; + disableOthers(_this2, track); + _this2.changing_ = false; + + _this2.trigger('change'); + }; + /** + * @listens AudioTrack#enabledchange + * @fires TrackList#change + */ + + + track.addEventListener('enabledchange', track.enabledChange_); + }; + + _proto.removeTrack = function removeTrack(rtrack) { + _TrackList.prototype.removeTrack.call(this, rtrack); + + if (rtrack.removeEventListener && rtrack.enabledChange_) { + rtrack.removeEventListener('enabledchange', rtrack.enabledChange_); + rtrack.enabledChange_ = null; + } + }; + + return AudioTrackList; + }(TrackList); + + /** + * Un-select all other {@link VideoTrack}s that are selected. + * + * @param {VideoTrackList} list + * list to work on + * + * @param {VideoTrack} track + * The track to skip + * + * @private + */ + + var disableOthers$1 = function disableOthers(list, track) { + for (var i = 0; i < list.length; i++) { + if (!Object.keys(list[i]).length || track.id === list[i].id) { + continue; + } // another video track is enabled, disable it + + + list[i].selected = false; + } + }; + /** + * The current list of {@link VideoTrack} for a video. + * + * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist} + * @extends TrackList + */ + + + var VideoTrackList = /*#__PURE__*/function (_TrackList) { + inheritsLoose(VideoTrackList, _TrackList); + + /** + * Create an instance of this class. + * + * @param {VideoTrack[]} [tracks=[]] + * A list of `VideoTrack` to instantiate the list with. + */ + function VideoTrackList(tracks) { + var _this; + + if (tracks === void 0) { + tracks = []; + } + + // make sure only 1 track is enabled + // sorted from last index to first index + for (var i = tracks.length - 1; i >= 0; i--) { + if (tracks[i].selected) { + disableOthers$1(tracks, tracks[i]); + break; + } + } + + _this = _TrackList.call(this, tracks) || this; + _this.changing_ = false; + /** + * @member {number} VideoTrackList#selectedIndex + * The current index of the selected {@link VideoTrack`}. + */ + + Object.defineProperty(assertThisInitialized(_this), 'selectedIndex', { + get: function get() { + for (var _i = 0; _i < this.length; _i++) { + if (this[_i].selected) { + return _i; + } + } + + return -1; + }, + set: function set() {} + }); + return _this; + } + /** + * Add a {@link VideoTrack} to the `VideoTrackList`. + * + * @param {VideoTrack} track + * The VideoTrack to add to the list + * + * @fires TrackList#addtrack + */ + + + var _proto = VideoTrackList.prototype; + + _proto.addTrack = function addTrack(track) { + var _this2 = this; + + if (track.selected) { + disableOthers$1(this, track); + } + + _TrackList.prototype.addTrack.call(this, track); // native tracks don't have this + + + if (!track.addEventListener) { + return; + } + + track.selectedChange_ = function () { + if (_this2.changing_) { + return; + } + + _this2.changing_ = true; + disableOthers$1(_this2, track); + _this2.changing_ = false; + + _this2.trigger('change'); + }; + /** + * @listens VideoTrack#selectedchange + * @fires TrackList#change + */ + + + track.addEventListener('selectedchange', track.selectedChange_); + }; + + _proto.removeTrack = function removeTrack(rtrack) { + _TrackList.prototype.removeTrack.call(this, rtrack); + + if (rtrack.removeEventListener && rtrack.selectedChange_) { + rtrack.removeEventListener('selectedchange', rtrack.selectedChange_); + rtrack.selectedChange_ = null; + } + }; + + return VideoTrackList; + }(TrackList); + + /** + * The current list of {@link TextTrack} for a media file. + * + * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttracklist} + * @extends TrackList + */ + + var TextTrackList = /*#__PURE__*/function (_TrackList) { + inheritsLoose(TextTrackList, _TrackList); + + function TextTrackList() { + return _TrackList.apply(this, arguments) || this; + } + + var _proto = TextTrackList.prototype; + + /** + * Add a {@link TextTrack} to the `TextTrackList` + * + * @param {TextTrack} track + * The text track to add to the list. + * + * @fires TrackList#addtrack + */ + _proto.addTrack = function addTrack(track) { + var _this = this; + + _TrackList.prototype.addTrack.call(this, track); + + if (!this.queueChange_) { + this.queueChange_ = function () { + return _this.queueTrigger('change'); + }; + } + + if (!this.triggerSelectedlanguagechange) { + this.triggerSelectedlanguagechange_ = function () { + return _this.trigger('selectedlanguagechange'); + }; + } + /** + * @listens TextTrack#modechange + * @fires TrackList#change + */ + + + track.addEventListener('modechange', this.queueChange_); + var nonLanguageTextTrackKind = ['metadata', 'chapters']; + + if (nonLanguageTextTrackKind.indexOf(track.kind) === -1) { + track.addEventListener('modechange', this.triggerSelectedlanguagechange_); + } + }; + + _proto.removeTrack = function removeTrack(rtrack) { + _TrackList.prototype.removeTrack.call(this, rtrack); // manually remove the event handlers we added + + + if (rtrack.removeEventListener) { + if (this.queueChange_) { + rtrack.removeEventListener('modechange', this.queueChange_); + } + + if (this.selectedlanguagechange_) { + rtrack.removeEventListener('modechange', this.triggerSelectedlanguagechange_); + } + } + }; + + return TextTrackList; + }(TrackList); + + /** + * @file html-track-element-list.js + */ + + /** + * The current list of {@link HtmlTrackElement}s. + */ + var HtmlTrackElementList = /*#__PURE__*/function () { + /** + * Create an instance of this class. + * + * @param {HtmlTrackElement[]} [tracks=[]] + * A list of `HtmlTrackElement` to instantiate the list with. + */ + function HtmlTrackElementList(trackElements) { + if (trackElements === void 0) { + trackElements = []; + } + + this.trackElements_ = []; + /** + * @memberof HtmlTrackElementList + * @member {number} length + * The current number of `Track`s in the this Trackist. + * @instance + */ + + Object.defineProperty(this, 'length', { + get: function get() { + return this.trackElements_.length; + } + }); + + for (var i = 0, length = trackElements.length; i < length; i++) { + this.addTrackElement_(trackElements[i]); + } + } + /** + * Add an {@link HtmlTrackElement} to the `HtmlTrackElementList` + * + * @param {HtmlTrackElement} trackElement + * The track element to add to the list. + * + * @private + */ + + + var _proto = HtmlTrackElementList.prototype; + + _proto.addTrackElement_ = function addTrackElement_(trackElement) { + var index = this.trackElements_.length; + + if (!('' + index in this)) { + Object.defineProperty(this, index, { + get: function get() { + return this.trackElements_[index]; + } + }); + } // Do not add duplicate elements + + + if (this.trackElements_.indexOf(trackElement) === -1) { + this.trackElements_.push(trackElement); + } + } + /** + * Get an {@link HtmlTrackElement} from the `HtmlTrackElementList` given an + * {@link TextTrack}. + * + * @param {TextTrack} track + * The track associated with a track element. + * + * @return {HtmlTrackElement|undefined} + * The track element that was found or undefined. + * + * @private + */ + ; + + _proto.getTrackElementByTrack_ = function getTrackElementByTrack_(track) { + var trackElement_; + + for (var i = 0, length = this.trackElements_.length; i < length; i++) { + if (track === this.trackElements_[i].track) { + trackElement_ = this.trackElements_[i]; + break; + } + } + + return trackElement_; + } + /** + * Remove a {@link HtmlTrackElement} from the `HtmlTrackElementList` + * + * @param {HtmlTrackElement} trackElement + * The track element to remove from the list. + * + * @private + */ + ; + + _proto.removeTrackElement_ = function removeTrackElement_(trackElement) { + for (var i = 0, length = this.trackElements_.length; i < length; i++) { + if (trackElement === this.trackElements_[i]) { + if (this.trackElements_[i].track && typeof this.trackElements_[i].track.off === 'function') { + this.trackElements_[i].track.off(); + } + + if (typeof this.trackElements_[i].off === 'function') { + this.trackElements_[i].off(); + } + + this.trackElements_.splice(i, 1); + break; + } + } + }; + + return HtmlTrackElementList; + }(); + + /** + * @file text-track-cue-list.js + */ + + /** + * @typedef {Object} TextTrackCueList~TextTrackCue + * + * @property {string} id + * The unique id for this text track cue + * + * @property {number} startTime + * The start time for this text track cue + * + * @property {number} endTime + * The end time for this text track cue + * + * @property {boolean} pauseOnExit + * Pause when the end time is reached if true. + * + * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcue} + */ + + /** + * A List of TextTrackCues. + * + * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcuelist} + */ + var TextTrackCueList = /*#__PURE__*/function () { + /** + * Create an instance of this class.. + * + * @param {Array} cues + * A list of cues to be initialized with + */ + function TextTrackCueList(cues) { + TextTrackCueList.prototype.setCues_.call(this, cues); + /** + * @memberof TextTrackCueList + * @member {number} length + * The current number of `TextTrackCue`s in the TextTrackCueList. + * @instance + */ + + Object.defineProperty(this, 'length', { + get: function get() { + return this.length_; + } + }); + } + /** + * A setter for cues in this list. Creates getters + * an an index for the cues. + * + * @param {Array} cues + * An array of cues to set + * + * @private + */ + + + var _proto = TextTrackCueList.prototype; + + _proto.setCues_ = function setCues_(cues) { + var oldLength = this.length || 0; + var i = 0; + var l = cues.length; + this.cues_ = cues; + this.length_ = cues.length; + + var defineProp = function defineProp(index) { + if (!('' + index in this)) { + Object.defineProperty(this, '' + index, { + get: function get() { + return this.cues_[index]; + } + }); + } + }; + + if (oldLength < l) { + i = oldLength; + + for (; i < l; i++) { + defineProp.call(this, i); + } + } + } + /** + * Get a `TextTrackCue` that is currently in the `TextTrackCueList` by id. + * + * @param {string} id + * The id of the cue that should be searched for. + * + * @return {TextTrackCueList~TextTrackCue|null} + * A single cue or null if none was found. + */ + ; + + _proto.getCueById = function getCueById(id) { + var result = null; + + for (var i = 0, l = this.length; i < l; i++) { + var cue = this[i]; + + if (cue.id === id) { + result = cue; + break; + } + } + + return result; + }; + + return TextTrackCueList; + }(); + + /** + * @file track-kinds.js + */ + + /** + * All possible `VideoTrackKind`s + * + * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-videotrack-kind + * @typedef VideoTrack~Kind + * @enum + */ + var VideoTrackKind = { + alternative: 'alternative', + captions: 'captions', + main: 'main', + sign: 'sign', + subtitles: 'subtitles', + commentary: 'commentary' + }; + /** + * All possible `AudioTrackKind`s + * + * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-audiotrack-kind + * @typedef AudioTrack~Kind + * @enum + */ + + var AudioTrackKind = { + 'alternative': 'alternative', + 'descriptions': 'descriptions', + 'main': 'main', + 'main-desc': 'main-desc', + 'translation': 'translation', + 'commentary': 'commentary' + }; + /** + * All possible `TextTrackKind`s + * + * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-texttrack-kind + * @typedef TextTrack~Kind + * @enum + */ + + var TextTrackKind = { + subtitles: 'subtitles', + captions: 'captions', + descriptions: 'descriptions', + chapters: 'chapters', + metadata: 'metadata' + }; + /** + * All possible `TextTrackMode`s + * + * @see https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackmode + * @typedef TextTrack~Mode + * @enum + */ + + var TextTrackMode = { + disabled: 'disabled', + hidden: 'hidden', + showing: 'showing' + }; + + /** + * A Track class that contains all of the common functionality for {@link AudioTrack}, + * {@link VideoTrack}, and {@link TextTrack}. + * + * > Note: This class should not be used directly + * + * @see {@link https://html.spec.whatwg.org/multipage/embedded-content.html} + * @extends EventTarget + * @abstract + */ + + var Track = /*#__PURE__*/function (_EventTarget) { + inheritsLoose(Track, _EventTarget); + + /** + * Create an instance of this class. + * + * @param {Object} [options={}] + * Object of option names and values + * + * @param {string} [options.kind=''] + * A valid kind for the track type you are creating. + * + * @param {string} [options.id='vjs_track_' + Guid.newGUID()] + * A unique id for this AudioTrack. + * + * @param {string} [options.label=''] + * The menu label for this track. + * + * @param {string} [options.language=''] + * A valid two character language code. + * + * @abstract + */ + function Track(options) { + var _this; + + if (options === void 0) { + options = {}; + } + + _this = _EventTarget.call(this) || this; + var trackProps = { + id: options.id || 'vjs_track_' + newGUID(), + kind: options.kind || '', + label: options.label || '', + language: options.language || '' + }; + /** + * @memberof Track + * @member {string} id + * The id of this track. Cannot be changed after creation. + * @instance + * + * @readonly + */ + + /** + * @memberof Track + * @member {string} kind + * The kind of track that this is. Cannot be changed after creation. + * @instance + * + * @readonly + */ + + /** + * @memberof Track + * @member {string} label + * The label of this track. Cannot be changed after creation. + * @instance + * + * @readonly + */ + + /** + * @memberof Track + * @member {string} language + * The two letter language code for this track. Cannot be changed after + * creation. + * @instance + * + * @readonly + */ + + var _loop = function _loop(key) { + Object.defineProperty(assertThisInitialized(_this), key, { + get: function get() { + return trackProps[key]; + }, + set: function set() {} + }); + }; + + for (var key in trackProps) { + _loop(key); + } + + return _this; + } + + return Track; + }(EventTarget); + + /** + * @file url.js + * @module url + */ + /** + * @typedef {Object} url:URLObject + * + * @property {string} protocol + * The protocol of the url that was parsed. + * + * @property {string} hostname + * The hostname of the url that was parsed. + * + * @property {string} port + * The port of the url that was parsed. + * + * @property {string} pathname + * The pathname of the url that was parsed. + * + * @property {string} search + * The search query of the url that was parsed. + * + * @property {string} hash + * The hash of the url that was parsed. + * + * @property {string} host + * The host of the url that was parsed. + */ + + /** + * Resolve and parse the elements of a URL. + * + * @function + * @param {String} url + * The url to parse + * + * @return {url:URLObject} + * An object of url details + */ + + var parseUrl = function parseUrl(url) { + var props = ['protocol', 'hostname', 'port', 'pathname', 'search', 'hash', 'host']; // add the url to an anchor and let the browser parse the URL + + var a = document_1.createElement('a'); + a.href = url; // IE8 (and 9?) Fix + // ie8 doesn't parse the URL correctly until the anchor is actually + // added to the body, and an innerHTML is needed to trigger the parsing + + var addToBody = a.host === '' && a.protocol !== 'file:'; + var div; + + if (addToBody) { + div = document_1.createElement('div'); + div.innerHTML = ""; + a = div.firstChild; // prevent the div from affecting layout + + div.setAttribute('style', 'display:none; position:absolute;'); + document_1.body.appendChild(div); + } // Copy the specific URL properties to a new object + // This is also needed for IE8 because the anchor loses its + // properties when it's removed from the dom + + + var details = {}; + + for (var i = 0; i < props.length; i++) { + details[props[i]] = a[props[i]]; + } // IE9 adds the port to the host property unlike everyone else. If + // a port identifier is added for standard ports, strip it. + + + if (details.protocol === 'http:') { + details.host = details.host.replace(/:80$/, ''); + } + + if (details.protocol === 'https:') { + details.host = details.host.replace(/:443$/, ''); + } + + if (!details.protocol) { + details.protocol = window_1.location.protocol; + } + + if (addToBody) { + document_1.body.removeChild(div); + } + + return details; + }; + /** + * Get absolute version of relative URL. Used to tell Flash the correct URL. + * + * @function + * @param {string} url + * URL to make absolute + * + * @return {string} + * Absolute URL + * + * @see http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue + */ + + var getAbsoluteURL = function getAbsoluteURL(url) { + // Check if absolute URL + if (!url.match(/^https?:\/\//)) { + // Convert to absolute URL. Flash hosted off-site needs an absolute URL. + var div = document_1.createElement('div'); + div.innerHTML = "x"; + url = div.firstChild.href; + } + + return url; + }; + /** + * Returns the extension of the passed file name. It will return an empty string + * if passed an invalid path. + * + * @function + * @param {string} path + * The fileName path like '/path/to/file.mp4' + * + * @return {string} + * The extension in lower case or an empty string if no + * extension could be found. + */ + + var getFileExtension = function getFileExtension(path) { + if (typeof path === 'string') { + var splitPathRe = /^(\/?)([\s\S]*?)((?:\.{1,2}|[^\/]+?)(\.([^\.\/\?]+)))(?:[\/]*|[\?].*)$/; + var pathParts = splitPathRe.exec(path); + + if (pathParts) { + return pathParts.pop().toLowerCase(); + } + } + + return ''; + }; + /** + * Returns whether the url passed is a cross domain request or not. + * + * @function + * @param {string} url + * The url to check. + * + * @param {Object} [winLoc] + * the domain to check the url against, defaults to window.location + * + * @param {string} [winLoc.protocol] + * The window location protocol defaults to window.location.protocol + * + * @param {string} [winLoc.host] + * The window location host defaults to window.location.host + * + * @return {boolean} + * Whether it is a cross domain request or not. + */ + + var isCrossOrigin = function isCrossOrigin(url, winLoc) { + if (winLoc === void 0) { + winLoc = window_1.location; + } + + var urlInfo = parseUrl(url); // IE8 protocol relative urls will return ':' for protocol + + var srcProtocol = urlInfo.protocol === ':' ? winLoc.protocol : urlInfo.protocol; // Check if url is for another domain/origin + // IE8 doesn't know location.origin, so we won't rely on it here + + var crossOrigin = srcProtocol + urlInfo.host !== winLoc.protocol + winLoc.host; + return crossOrigin; + }; + + var Url = /*#__PURE__*/Object.freeze({ + __proto__: null, + parseUrl: parseUrl, + getAbsoluteURL: getAbsoluteURL, + getFileExtension: getFileExtension, + isCrossOrigin: isCrossOrigin + }); + + /** + * Takes a webvtt file contents and parses it into cues + * + * @param {string} srcContent + * webVTT file contents + * + * @param {TextTrack} track + * TextTrack to add cues to. Cues come from the srcContent. + * + * @private + */ + + var parseCues = function parseCues(srcContent, track) { + var parser = new window_1.WebVTT.Parser(window_1, window_1.vttjs, window_1.WebVTT.StringDecoder()); + var errors = []; + + parser.oncue = function (cue) { + track.addCue(cue); + }; + + parser.onparsingerror = function (error) { + errors.push(error); + }; + + parser.onflush = function () { + track.trigger({ + type: 'loadeddata', + target: track + }); + }; + + parser.parse(srcContent); + + if (errors.length > 0) { + if (window_1.console && window_1.console.groupCollapsed) { + window_1.console.groupCollapsed("Text Track parsing errors for " + track.src); + } + + errors.forEach(function (error) { + return log.error(error); + }); + + if (window_1.console && window_1.console.groupEnd) { + window_1.console.groupEnd(); + } + } + + parser.flush(); + }; + /** + * Load a `TextTrack` from a specified url. + * + * @param {string} src + * Url to load track from. + * + * @param {TextTrack} track + * Track to add cues to. Comes from the content at the end of `url`. + * + * @private + */ + + + var loadTrack = function loadTrack(src, track) { + var opts = { + uri: src + }; + var crossOrigin = isCrossOrigin(src); + + if (crossOrigin) { + opts.cors = crossOrigin; + } + + xhr(opts, bind(this, function (err, response, responseBody) { + if (err) { + return log.error(err, response); + } + + track.loaded_ = true; // Make sure that vttjs has loaded, otherwise, wait till it finished loading + // NOTE: this is only used for the alt/video.novtt.js build + + if (typeof window_1.WebVTT !== 'function') { + if (track.tech_) { + // to prevent use before define eslint error, we define loadHandler + // as a let here + track.tech_.any(['vttjsloaded', 'vttjserror'], function (event) { + if (event.type === 'vttjserror') { + log.error("vttjs failed to load, stopping trying to process " + track.src); + return; + } + + return parseCues(responseBody, track); + }); + } + } else { + parseCues(responseBody, track); + } + })); + }; + /** + * A representation of a single `TextTrack`. + * + * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrack} + * @extends Track + */ + + + var TextTrack = /*#__PURE__*/function (_Track) { + inheritsLoose(TextTrack, _Track); + + /** + * Create an instance of this class. + * + * @param {Object} options={} + * Object of option names and values + * + * @param {Tech} options.tech + * A reference to the tech that owns this TextTrack. + * + * @param {TextTrack~Kind} [options.kind='subtitles'] + * A valid text track kind. + * + * @param {TextTrack~Mode} [options.mode='disabled'] + * A valid text track mode. + * + * @param {string} [options.id='vjs_track_' + Guid.newGUID()] + * A unique id for this TextTrack. + * + * @param {string} [options.label=''] + * The menu label for this track. + * + * @param {string} [options.language=''] + * A valid two character language code. + * + * @param {string} [options.srclang=''] + * A valid two character language code. An alternative, but deprioritized + * version of `options.language` + * + * @param {string} [options.src] + * A url to TextTrack cues. + * + * @param {boolean} [options.default] + * If this track should default to on or off. + */ + function TextTrack(options) { + var _this; + + if (options === void 0) { + options = {}; + } + + if (!options.tech) { + throw new Error('A tech was not provided.'); + } + + var settings = mergeOptions(options, { + kind: TextTrackKind[options.kind] || 'subtitles', + language: options.language || options.srclang || '' + }); + var mode = TextTrackMode[settings.mode] || 'disabled'; + var default_ = settings["default"]; + + if (settings.kind === 'metadata' || settings.kind === 'chapters') { + mode = 'hidden'; + } + + _this = _Track.call(this, settings) || this; + _this.tech_ = settings.tech; + _this.cues_ = []; + _this.activeCues_ = []; + _this.preload_ = _this.tech_.preloadTextTracks !== false; + var cues = new TextTrackCueList(_this.cues_); + var activeCues = new TextTrackCueList(_this.activeCues_); + var changed = false; + var timeupdateHandler = bind(assertThisInitialized(_this), function () { + // Accessing this.activeCues for the side-effects of updating itself + // due to its nature as a getter function. Do not remove or cues will + // stop updating! + // Use the setter to prevent deletion from uglify (pure_getters rule) + this.activeCues = this.activeCues; + + if (changed) { + this.trigger('cuechange'); + changed = false; + } + }); + + if (mode !== 'disabled') { + _this.tech_.ready(function () { + _this.tech_.on('timeupdate', timeupdateHandler); + }, true); + } + + Object.defineProperties(assertThisInitialized(_this), { + /** + * @memberof TextTrack + * @member {boolean} default + * If this track was set to be on or off by default. Cannot be changed after + * creation. + * @instance + * + * @readonly + */ + "default": { + get: function get() { + return default_; + }, + set: function set() {} + }, + + /** + * @memberof TextTrack + * @member {string} mode + * Set the mode of this TextTrack to a valid {@link TextTrack~Mode}. Will + * not be set if setting to an invalid mode. + * @instance + * + * @fires TextTrack#modechange + */ + mode: { + get: function get() { + return mode; + }, + set: function set(newMode) { + var _this2 = this; + + if (!TextTrackMode[newMode]) { + return; + } + + mode = newMode; + + if (!this.preload_ && mode !== 'disabled' && this.cues.length === 0) { + // On-demand load. + loadTrack(this.src, this); + } + + if (mode !== 'disabled') { + this.tech_.ready(function () { + _this2.tech_.on('timeupdate', timeupdateHandler); + }, true); + } else { + this.tech_.off('timeupdate', timeupdateHandler); + } + /** + * An event that fires when mode changes on this track. This allows + * the TextTrackList that holds this track to act accordingly. + * + * > Note: This is not part of the spec! + * + * @event TextTrack#modechange + * @type {EventTarget~Event} + */ + + + this.trigger('modechange'); + } + }, + + /** + * @memberof TextTrack + * @member {TextTrackCueList} cues + * The text track cue list for this TextTrack. + * @instance + */ + cues: { + get: function get() { + if (!this.loaded_) { + return null; + } + + return cues; + }, + set: function set() {} + }, + + /** + * @memberof TextTrack + * @member {TextTrackCueList} activeCues + * The list text track cues that are currently active for this TextTrack. + * @instance + */ + activeCues: { + get: function get() { + if (!this.loaded_) { + return null; + } // nothing to do + + + if (this.cues.length === 0) { + return activeCues; + } + + var ct = this.tech_.currentTime(); + var active = []; + + for (var i = 0, l = this.cues.length; i < l; i++) { + var cue = this.cues[i]; + + if (cue.startTime <= ct && cue.endTime >= ct) { + active.push(cue); + } else if (cue.startTime === cue.endTime && cue.startTime <= ct && cue.startTime + 0.5 >= ct) { + active.push(cue); + } + } + + changed = false; + + if (active.length !== this.activeCues_.length) { + changed = true; + } else { + for (var _i = 0; _i < active.length; _i++) { + if (this.activeCues_.indexOf(active[_i]) === -1) { + changed = true; + } + } + } + + this.activeCues_ = active; + activeCues.setCues_(this.activeCues_); + return activeCues; + }, + // /!\ Keep this setter empty (see the timeupdate handler above) + set: function set() {} + } + }); + + if (settings.src) { + _this.src = settings.src; + + if (!_this.preload_) { + // Tracks will load on-demand. + // Act like we're loaded for other purposes. + _this.loaded_ = true; + } + + if (_this.preload_ || default_ || settings.kind !== 'subtitles' && settings.kind !== 'captions') { + loadTrack(_this.src, assertThisInitialized(_this)); + } + } else { + _this.loaded_ = true; + } + + return _this; + } + /** + * Add a cue to the internal list of cues. + * + * @param {TextTrack~Cue} cue + * The cue to add to our internal list + */ + + + var _proto = TextTrack.prototype; + + _proto.addCue = function addCue(originalCue) { + var cue = originalCue; + + if (window_1.vttjs && !(originalCue instanceof window_1.vttjs.VTTCue)) { + cue = new window_1.vttjs.VTTCue(originalCue.startTime, originalCue.endTime, originalCue.text); + + for (var prop in originalCue) { + if (!(prop in cue)) { + cue[prop] = originalCue[prop]; + } + } // make sure that `id` is copied over + + + cue.id = originalCue.id; + cue.originalCue_ = originalCue; + } + + var tracks = this.tech_.textTracks(); + + for (var i = 0; i < tracks.length; i++) { + if (tracks[i] !== this) { + tracks[i].removeCue(cue); + } + } + + this.cues_.push(cue); + this.cues.setCues_(this.cues_); + } + /** + * Remove a cue from our internal list + * + * @param {TextTrack~Cue} removeCue + * The cue to remove from our internal list + */ + ; + + _proto.removeCue = function removeCue(_removeCue) { + var i = this.cues_.length; + + while (i--) { + var cue = this.cues_[i]; + + if (cue === _removeCue || cue.originalCue_ && cue.originalCue_ === _removeCue) { + this.cues_.splice(i, 1); + this.cues.setCues_(this.cues_); + break; + } + } + }; + + return TextTrack; + }(Track); + /** + * cuechange - One or more cues in the track have become active or stopped being active. + */ + + + TextTrack.prototype.allowedEvents_ = { + cuechange: 'cuechange' + }; + + /** + * A representation of a single `AudioTrack`. If it is part of an {@link AudioTrackList} + * only one `AudioTrack` in the list will be enabled at a time. + * + * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotrack} + * @extends Track + */ + + var AudioTrack = /*#__PURE__*/function (_Track) { + inheritsLoose(AudioTrack, _Track); + + /** + * Create an instance of this class. + * + * @param {Object} [options={}] + * Object of option names and values + * + * @param {AudioTrack~Kind} [options.kind=''] + * A valid audio track kind + * + * @param {string} [options.id='vjs_track_' + Guid.newGUID()] + * A unique id for this AudioTrack. + * + * @param {string} [options.label=''] + * The menu label for this track. + * + * @param {string} [options.language=''] + * A valid two character language code. + * + * @param {boolean} [options.enabled] + * If this track is the one that is currently playing. If this track is part of + * an {@link AudioTrackList}, only one {@link AudioTrack} will be enabled. + */ + function AudioTrack(options) { + var _this; + + if (options === void 0) { + options = {}; + } + + var settings = mergeOptions(options, { + kind: AudioTrackKind[options.kind] || '' + }); + _this = _Track.call(this, settings) || this; + var enabled = false; + /** + * @memberof AudioTrack + * @member {boolean} enabled + * If this `AudioTrack` is enabled or not. When setting this will + * fire {@link AudioTrack#enabledchange} if the state of enabled is changed. + * @instance + * + * @fires VideoTrack#selectedchange + */ + + Object.defineProperty(assertThisInitialized(_this), 'enabled', { + get: function get() { + return enabled; + }, + set: function set(newEnabled) { + // an invalid or unchanged value + if (typeof newEnabled !== 'boolean' || newEnabled === enabled) { + return; + } + + enabled = newEnabled; + /** + * An event that fires when enabled changes on this track. This allows + * the AudioTrackList that holds this track to act accordingly. + * + * > Note: This is not part of the spec! Native tracks will do + * this internally without an event. + * + * @event AudioTrack#enabledchange + * @type {EventTarget~Event} + */ + + this.trigger('enabledchange'); + } + }); // if the user sets this track to selected then + // set selected to that true value otherwise + // we keep it false + + if (settings.enabled) { + _this.enabled = settings.enabled; + } + + _this.loaded_ = true; + return _this; + } + + return AudioTrack; + }(Track); + + /** + * A representation of a single `VideoTrack`. + * + * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotrack} + * @extends Track + */ + + var VideoTrack = /*#__PURE__*/function (_Track) { + inheritsLoose(VideoTrack, _Track); + + /** + * Create an instance of this class. + * + * @param {Object} [options={}] + * Object of option names and values + * + * @param {string} [options.kind=''] + * A valid {@link VideoTrack~Kind} + * + * @param {string} [options.id='vjs_track_' + Guid.newGUID()] + * A unique id for this AudioTrack. + * + * @param {string} [options.label=''] + * The menu label for this track. + * + * @param {string} [options.language=''] + * A valid two character language code. + * + * @param {boolean} [options.selected] + * If this track is the one that is currently playing. + */ + function VideoTrack(options) { + var _this; + + if (options === void 0) { + options = {}; + } + + var settings = mergeOptions(options, { + kind: VideoTrackKind[options.kind] || '' + }); + _this = _Track.call(this, settings) || this; + var selected = false; + /** + * @memberof VideoTrack + * @member {boolean} selected + * If this `VideoTrack` is selected or not. When setting this will + * fire {@link VideoTrack#selectedchange} if the state of selected changed. + * @instance + * + * @fires VideoTrack#selectedchange + */ + + Object.defineProperty(assertThisInitialized(_this), 'selected', { + get: function get() { + return selected; + }, + set: function set(newSelected) { + // an invalid or unchanged value + if (typeof newSelected !== 'boolean' || newSelected === selected) { + return; + } + + selected = newSelected; + /** + * An event that fires when selected changes on this track. This allows + * the VideoTrackList that holds this track to act accordingly. + * + * > Note: This is not part of the spec! Native tracks will do + * this internally without an event. + * + * @event VideoTrack#selectedchange + * @type {EventTarget~Event} + */ + + this.trigger('selectedchange'); + } + }); // if the user sets this track to selected then + // set selected to that true value otherwise + // we keep it false + + if (settings.selected) { + _this.selected = settings.selected; + } + + return _this; + } + + return VideoTrack; + }(Track); + + /** + * @memberof HTMLTrackElement + * @typedef {HTMLTrackElement~ReadyState} + * @enum {number} + */ + + var NONE = 0; + var LOADING = 1; + var LOADED = 2; + var ERROR = 3; + /** + * A single track represented in the DOM. + * + * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#htmltrackelement} + * @extends EventTarget + */ + + var HTMLTrackElement = /*#__PURE__*/function (_EventTarget) { + inheritsLoose(HTMLTrackElement, _EventTarget); + + /** + * Create an instance of this class. + * + * @param {Object} options={} + * Object of option names and values + * + * @param {Tech} options.tech + * A reference to the tech that owns this HTMLTrackElement. + * + * @param {TextTrack~Kind} [options.kind='subtitles'] + * A valid text track kind. + * + * @param {TextTrack~Mode} [options.mode='disabled'] + * A valid text track mode. + * + * @param {string} [options.id='vjs_track_' + Guid.newGUID()] + * A unique id for this TextTrack. + * + * @param {string} [options.label=''] + * The menu label for this track. + * + * @param {string} [options.language=''] + * A valid two character language code. + * + * @param {string} [options.srclang=''] + * A valid two character language code. An alternative, but deprioritized + * vesion of `options.language` + * + * @param {string} [options.src] + * A url to TextTrack cues. + * + * @param {boolean} [options.default] + * If this track should default to on or off. + */ + function HTMLTrackElement(options) { + var _this; + + if (options === void 0) { + options = {}; + } + + _this = _EventTarget.call(this) || this; + var readyState; + var track = new TextTrack(options); + _this.kind = track.kind; + _this.src = track.src; + _this.srclang = track.language; + _this.label = track.label; + _this["default"] = track["default"]; + Object.defineProperties(assertThisInitialized(_this), { + /** + * @memberof HTMLTrackElement + * @member {HTMLTrackElement~ReadyState} readyState + * The current ready state of the track element. + * @instance + */ + readyState: { + get: function get() { + return readyState; + } + }, + + /** + * @memberof HTMLTrackElement + * @member {TextTrack} track + * The underlying TextTrack object. + * @instance + * + */ + track: { + get: function get() { + return track; + } + } + }); + readyState = NONE; + /** + * @listens TextTrack#loadeddata + * @fires HTMLTrackElement#load + */ + + track.addEventListener('loadeddata', function () { + readyState = LOADED; + + _this.trigger({ + type: 'load', + target: assertThisInitialized(_this) + }); + }); + return _this; + } + + return HTMLTrackElement; + }(EventTarget); + + HTMLTrackElement.prototype.allowedEvents_ = { + load: 'load' + }; + HTMLTrackElement.NONE = NONE; + HTMLTrackElement.LOADING = LOADING; + HTMLTrackElement.LOADED = LOADED; + HTMLTrackElement.ERROR = ERROR; + + /* + * This file contains all track properties that are used in + * player.js, tech.js, html5.js and possibly other techs in the future. + */ + + var NORMAL = { + audio: { + ListClass: AudioTrackList, + TrackClass: AudioTrack, + capitalName: 'Audio' + }, + video: { + ListClass: VideoTrackList, + TrackClass: VideoTrack, + capitalName: 'Video' + }, + text: { + ListClass: TextTrackList, + TrackClass: TextTrack, + capitalName: 'Text' + } + }; + Object.keys(NORMAL).forEach(function (type) { + NORMAL[type].getterName = type + "Tracks"; + NORMAL[type].privateName = type + "Tracks_"; + }); + var REMOTE = { + remoteText: { + ListClass: TextTrackList, + TrackClass: TextTrack, + capitalName: 'RemoteText', + getterName: 'remoteTextTracks', + privateName: 'remoteTextTracks_' + }, + remoteTextEl: { + ListClass: HtmlTrackElementList, + TrackClass: HTMLTrackElement, + capitalName: 'RemoteTextTrackEls', + getterName: 'remoteTextTrackEls', + privateName: 'remoteTextTrackEls_' + } + }; + + var ALL = _extends_1({}, NORMAL, REMOTE); + + REMOTE.names = Object.keys(REMOTE); + NORMAL.names = Object.keys(NORMAL); + ALL.names = [].concat(REMOTE.names).concat(NORMAL.names); + + /** + * An Object containing a structure like: `{src: 'url', type: 'mimetype'}` or string + * that just contains the src url alone. + * * `var SourceObject = {src: 'http://ex.com/video.mp4', type: 'video/mp4'};` + * `var SourceString = 'http://example.com/some-video.mp4';` + * + * @typedef {Object|string} Tech~SourceObject + * + * @property {string} src + * The url to the source + * + * @property {string} type + * The mime type of the source + */ + + /** + * A function used by {@link Tech} to create a new {@link TextTrack}. + * + * @private + * + * @param {Tech} self + * An instance of the Tech class. + * + * @param {string} kind + * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata) + * + * @param {string} [label] + * Label to identify the text track + * + * @param {string} [language] + * Two letter language abbreviation + * + * @param {Object} [options={}] + * An object with additional text track options + * + * @return {TextTrack} + * The text track that was created. + */ + + function createTrackHelper(self, kind, label, language, options) { + if (options === void 0) { + options = {}; + } + + var tracks = self.textTracks(); + options.kind = kind; + + if (label) { + options.label = label; + } + + if (language) { + options.language = language; + } + + options.tech = self; + var track = new ALL.text.TrackClass(options); + tracks.addTrack(track); + return track; + } + /** + * This is the base class for media playback technology controllers, such as + * {@link Flash} and {@link HTML5} + * + * @extends Component + */ + + + var Tech = /*#__PURE__*/function (_Component) { + inheritsLoose(Tech, _Component); + + /** + * Create an instance of this Tech. + * + * @param {Object} [options] + * The key/value store of player options. + * + * @param {Component~ReadyCallback} ready + * Callback function to call when the `HTML5` Tech is ready. + */ + function Tech(options, ready) { + var _this; + + if (options === void 0) { + options = {}; + } + + if (ready === void 0) { + ready = function ready() {}; + } + + // we don't want the tech to report user activity automatically. + // This is done manually in addControlsListeners + options.reportTouchActivity = false; + _this = _Component.call(this, null, options, ready) || this; // keep track of whether the current source has played at all to + // implement a very limited played() + + _this.hasStarted_ = false; + + _this.on('playing', function () { + this.hasStarted_ = true; + }); + + _this.on('loadstart', function () { + this.hasStarted_ = false; + }); + + ALL.names.forEach(function (name) { + var props = ALL[name]; + + if (options && options[props.getterName]) { + _this[props.privateName] = options[props.getterName]; + } + }); // Manually track progress in cases where the browser/flash player doesn't report it. + + if (!_this.featuresProgressEvents) { + _this.manualProgressOn(); + } // Manually track timeupdates in cases where the browser/flash player doesn't report it. + + + if (!_this.featuresTimeupdateEvents) { + _this.manualTimeUpdatesOn(); + } + + ['Text', 'Audio', 'Video'].forEach(function (track) { + if (options["native" + track + "Tracks"] === false) { + _this["featuresNative" + track + "Tracks"] = false; + } + }); + + if (options.nativeCaptions === false || options.nativeTextTracks === false) { + _this.featuresNativeTextTracks = false; + } else if (options.nativeCaptions === true || options.nativeTextTracks === true) { + _this.featuresNativeTextTracks = true; + } + + if (!_this.featuresNativeTextTracks) { + _this.emulateTextTracks(); + } + + _this.preloadTextTracks = options.preloadTextTracks !== false; + _this.autoRemoteTextTracks_ = new ALL.text.ListClass(); + + _this.initTrackListeners(); // Turn on component tap events only if not using native controls + + + if (!options.nativeControlsForTouch) { + _this.emitTapEvents(); + } + + if (_this.constructor) { + _this.name_ = _this.constructor.name || 'Unknown Tech'; + } + + return _this; + } + /** + * A special function to trigger source set in a way that will allow player + * to re-trigger if the player or tech are not ready yet. + * + * @fires Tech#sourceset + * @param {string} src The source string at the time of the source changing. + */ + + + var _proto = Tech.prototype; + + _proto.triggerSourceset = function triggerSourceset(src) { + var _this2 = this; + + if (!this.isReady_) { + // on initial ready we have to trigger source set + // 1ms after ready so that player can watch for it. + this.one('ready', function () { + return _this2.setTimeout(function () { + return _this2.triggerSourceset(src); + }, 1); + }); + } + /** + * Fired when the source is set on the tech causing the media element + * to reload. + * + * @see {@link Player#event:sourceset} + * @event Tech#sourceset + * @type {EventTarget~Event} + */ + + + this.trigger({ + src: src, + type: 'sourceset' + }); + } + /* Fallbacks for unsupported event types + ================================================================================ */ + + /** + * Polyfill the `progress` event for browsers that don't support it natively. + * + * @see {@link Tech#trackProgress} + */ + ; + + _proto.manualProgressOn = function manualProgressOn() { + this.on('durationchange', this.onDurationChange); + this.manualProgress = true; // Trigger progress watching when a source begins loading + + this.one('ready', this.trackProgress); + } + /** + * Turn off the polyfill for `progress` events that was created in + * {@link Tech#manualProgressOn} + */ + ; + + _proto.manualProgressOff = function manualProgressOff() { + this.manualProgress = false; + this.stopTrackingProgress(); + this.off('durationchange', this.onDurationChange); + } + /** + * This is used to trigger a `progress` event when the buffered percent changes. It + * sets an interval function that will be called every 500 milliseconds to check if the + * buffer end percent has changed. + * + * > This function is called by {@link Tech#manualProgressOn} + * + * @param {EventTarget~Event} event + * The `ready` event that caused this to run. + * + * @listens Tech#ready + * @fires Tech#progress + */ + ; + + _proto.trackProgress = function trackProgress(event) { + this.stopTrackingProgress(); + this.progressInterval = this.setInterval(bind(this, function () { + // Don't trigger unless buffered amount is greater than last time + var numBufferedPercent = this.bufferedPercent(); + + if (this.bufferedPercent_ !== numBufferedPercent) { + /** + * See {@link Player#progress} + * + * @event Tech#progress + * @type {EventTarget~Event} + */ + this.trigger('progress'); + } + + this.bufferedPercent_ = numBufferedPercent; + + if (numBufferedPercent === 1) { + this.stopTrackingProgress(); + } + }), 500); + } + /** + * Update our internal duration on a `durationchange` event by calling + * {@link Tech#duration}. + * + * @param {EventTarget~Event} event + * The `durationchange` event that caused this to run. + * + * @listens Tech#durationchange + */ + ; + + _proto.onDurationChange = function onDurationChange(event) { + this.duration_ = this.duration(); + } + /** + * Get and create a `TimeRange` object for buffering. + * + * @return {TimeRange} + * The time range object that was created. + */ + ; + + _proto.buffered = function buffered() { + return createTimeRanges(0, 0); + } + /** + * Get the percentage of the current video that is currently buffered. + * + * @return {number} + * A number from 0 to 1 that represents the decimal percentage of the + * video that is buffered. + * + */ + ; + + _proto.bufferedPercent = function bufferedPercent$1() { + return bufferedPercent(this.buffered(), this.duration_); + } + /** + * Turn off the polyfill for `progress` events that was created in + * {@link Tech#manualProgressOn} + * Stop manually tracking progress events by clearing the interval that was set in + * {@link Tech#trackProgress}. + */ + ; + + _proto.stopTrackingProgress = function stopTrackingProgress() { + this.clearInterval(this.progressInterval); + } + /** + * Polyfill the `timeupdate` event for browsers that don't support it. + * + * @see {@link Tech#trackCurrentTime} + */ + ; + + _proto.manualTimeUpdatesOn = function manualTimeUpdatesOn() { + this.manualTimeUpdates = true; + this.on('play', this.trackCurrentTime); + this.on('pause', this.stopTrackingCurrentTime); + } + /** + * Turn off the polyfill for `timeupdate` events that was created in + * {@link Tech#manualTimeUpdatesOn} + */ + ; + + _proto.manualTimeUpdatesOff = function manualTimeUpdatesOff() { + this.manualTimeUpdates = false; + this.stopTrackingCurrentTime(); + this.off('play', this.trackCurrentTime); + this.off('pause', this.stopTrackingCurrentTime); + } + /** + * Sets up an interval function to track current time and trigger `timeupdate` every + * 250 milliseconds. + * + * @listens Tech#play + * @triggers Tech#timeupdate + */ + ; + + _proto.trackCurrentTime = function trackCurrentTime() { + if (this.currentTimeInterval) { + this.stopTrackingCurrentTime(); + } + + this.currentTimeInterval = this.setInterval(function () { + /** + * Triggered at an interval of 250ms to indicated that time is passing in the video. + * + * @event Tech#timeupdate + * @type {EventTarget~Event} + */ + this.trigger({ + type: 'timeupdate', + target: this, + manuallyTriggered: true + }); // 42 = 24 fps // 250 is what Webkit uses // FF uses 15 + }, 250); + } + /** + * Stop the interval function created in {@link Tech#trackCurrentTime} so that the + * `timeupdate` event is no longer triggered. + * + * @listens {Tech#pause} + */ + ; + + _proto.stopTrackingCurrentTime = function stopTrackingCurrentTime() { + this.clearInterval(this.currentTimeInterval); // #1002 - if the video ends right before the next timeupdate would happen, + // the progress bar won't make it all the way to the end + + this.trigger({ + type: 'timeupdate', + target: this, + manuallyTriggered: true + }); + } + /** + * Turn off all event polyfills, clear the `Tech`s {@link AudioTrackList}, + * {@link VideoTrackList}, and {@link TextTrackList}, and dispose of this Tech. + * + * @fires Component#dispose + */ + ; + + _proto.dispose = function dispose() { + // clear out all tracks because we can't reuse them between techs + this.clearTracks(NORMAL.names); // Turn off any manual progress or timeupdate tracking + + if (this.manualProgress) { + this.manualProgressOff(); + } + + if (this.manualTimeUpdates) { + this.manualTimeUpdatesOff(); + } + + _Component.prototype.dispose.call(this); + } + /** + * Clear out a single `TrackList` or an array of `TrackLists` given their names. + * + * > Note: Techs without source handlers should call this between sources for `video` + * & `audio` tracks. You don't want to use them between tracks! + * + * @param {string[]|string} types + * TrackList names to clear, valid names are `video`, `audio`, and + * `text`. + */ + ; + + _proto.clearTracks = function clearTracks(types) { + var _this3 = this; + + types = [].concat(types); // clear out all tracks because we can't reuse them between techs + + types.forEach(function (type) { + var list = _this3[type + "Tracks"]() || []; + var i = list.length; + + while (i--) { + var track = list[i]; + + if (type === 'text') { + _this3.removeRemoteTextTrack(track); + } + + list.removeTrack(track); + } + }); + } + /** + * Remove any TextTracks added via addRemoteTextTrack that are + * flagged for automatic garbage collection + */ + ; + + _proto.cleanupAutoTextTracks = function cleanupAutoTextTracks() { + var list = this.autoRemoteTextTracks_ || []; + var i = list.length; + + while (i--) { + var track = list[i]; + this.removeRemoteTextTrack(track); + } + } + /** + * Reset the tech, which will removes all sources and reset the internal readyState. + * + * @abstract + */ + ; + + _proto.reset = function reset() {} + /** + * Get or set an error on the Tech. + * + * @param {MediaError} [err] + * Error to set on the Tech + * + * @return {MediaError|null} + * The current error object on the tech, or null if there isn't one. + */ + ; + + _proto.error = function error(err) { + if (err !== undefined) { + this.error_ = new MediaError(err); + this.trigger('error'); + } + + return this.error_; + } + /** + * Returns the `TimeRange`s that have been played through for the current source. + * + * > NOTE: This implementation is incomplete. It does not track the played `TimeRange`. + * It only checks whether the source has played at all or not. + * + * @return {TimeRange} + * - A single time range if this video has played + * - An empty set of ranges if not. + */ + ; + + _proto.played = function played() { + if (this.hasStarted_) { + return createTimeRanges(0, 0); + } + + return createTimeRanges(); + } + /** + * Causes a manual time update to occur if {@link Tech#manualTimeUpdatesOn} was + * previously called. + * + * @fires Tech#timeupdate + */ + ; + + _proto.setCurrentTime = function setCurrentTime() { + // improve the accuracy of manual timeupdates + if (this.manualTimeUpdates) { + /** + * A manual `timeupdate` event. + * + * @event Tech#timeupdate + * @type {EventTarget~Event} + */ + this.trigger({ + type: 'timeupdate', + target: this, + manuallyTriggered: true + }); + } + } + /** + * Turn on listeners for {@link VideoTrackList}, {@link {AudioTrackList}, and + * {@link TextTrackList} events. + * + * This adds {@link EventTarget~EventListeners} for `addtrack`, and `removetrack`. + * + * @fires Tech#audiotrackchange + * @fires Tech#videotrackchange + * @fires Tech#texttrackchange + */ + ; + + _proto.initTrackListeners = function initTrackListeners() { + var _this4 = this; + + /** + * Triggered when tracks are added or removed on the Tech {@link AudioTrackList} + * + * @event Tech#audiotrackchange + * @type {EventTarget~Event} + */ + + /** + * Triggered when tracks are added or removed on the Tech {@link VideoTrackList} + * + * @event Tech#videotrackchange + * @type {EventTarget~Event} + */ + + /** + * Triggered when tracks are added or removed on the Tech {@link TextTrackList} + * + * @event Tech#texttrackchange + * @type {EventTarget~Event} + */ + NORMAL.names.forEach(function (name) { + var props = NORMAL[name]; + + var trackListChanges = function trackListChanges() { + _this4.trigger(name + "trackchange"); + }; + + var tracks = _this4[props.getterName](); + + tracks.addEventListener('removetrack', trackListChanges); + tracks.addEventListener('addtrack', trackListChanges); + + _this4.on('dispose', function () { + tracks.removeEventListener('removetrack', trackListChanges); + tracks.removeEventListener('addtrack', trackListChanges); + }); + }); + } + /** + * Emulate TextTracks using vtt.js if necessary + * + * @fires Tech#vttjsloaded + * @fires Tech#vttjserror + */ + ; + + _proto.addWebVttScript_ = function addWebVttScript_() { + var _this5 = this; + + if (window_1.WebVTT) { + return; + } // Initially, Tech.el_ is a child of a dummy-div wait until the Component system + // signals that the Tech is ready at which point Tech.el_ is part of the DOM + // before inserting the WebVTT script + + + if (document_1.body.contains(this.el())) { + // load via require if available and vtt.js script location was not passed in + // as an option. novtt builds will turn the above require call into an empty object + // which will cause this if check to always fail. + if (!this.options_['vtt.js'] && isPlain(browserIndex) && Object.keys(browserIndex).length > 0) { + this.trigger('vttjsloaded'); + return; + } // load vtt.js via the script location option or the cdn of no location was + // passed in + + + var script = document_1.createElement('script'); + script.src = this.options_['vtt.js'] || 'https://vjs.zencdn.net/vttjs/0.14.1/vtt.min.js'; + + script.onload = function () { + /** + * Fired when vtt.js is loaded. + * + * @event Tech#vttjsloaded + * @type {EventTarget~Event} + */ + _this5.trigger('vttjsloaded'); + }; + + script.onerror = function () { + /** + * Fired when vtt.js was not loaded due to an error + * + * @event Tech#vttjsloaded + * @type {EventTarget~Event} + */ + _this5.trigger('vttjserror'); + }; + + this.on('dispose', function () { + script.onload = null; + script.onerror = null; + }); // but have not loaded yet and we set it to true before the inject so that + // we don't overwrite the injected window.WebVTT if it loads right away + + window_1.WebVTT = true; + this.el().parentNode.appendChild(script); + } else { + this.ready(this.addWebVttScript_); + } + } + /** + * Emulate texttracks + * + */ + ; + + _proto.emulateTextTracks = function emulateTextTracks() { + var _this6 = this; + + var tracks = this.textTracks(); + var remoteTracks = this.remoteTextTracks(); + + var handleAddTrack = function handleAddTrack(e) { + return tracks.addTrack(e.track); + }; + + var handleRemoveTrack = function handleRemoveTrack(e) { + return tracks.removeTrack(e.track); + }; + + remoteTracks.on('addtrack', handleAddTrack); + remoteTracks.on('removetrack', handleRemoveTrack); + this.addWebVttScript_(); + + var updateDisplay = function updateDisplay() { + return _this6.trigger('texttrackchange'); + }; + + var textTracksChanges = function textTracksChanges() { + updateDisplay(); + + for (var i = 0; i < tracks.length; i++) { + var track = tracks[i]; + track.removeEventListener('cuechange', updateDisplay); + + if (track.mode === 'showing') { + track.addEventListener('cuechange', updateDisplay); + } + } + }; + + textTracksChanges(); + tracks.addEventListener('change', textTracksChanges); + tracks.addEventListener('addtrack', textTracksChanges); + tracks.addEventListener('removetrack', textTracksChanges); + this.on('dispose', function () { + remoteTracks.off('addtrack', handleAddTrack); + remoteTracks.off('removetrack', handleRemoveTrack); + tracks.removeEventListener('change', textTracksChanges); + tracks.removeEventListener('addtrack', textTracksChanges); + tracks.removeEventListener('removetrack', textTracksChanges); + + for (var i = 0; i < tracks.length; i++) { + var track = tracks[i]; + track.removeEventListener('cuechange', updateDisplay); + } + }); + } + /** + * Create and returns a remote {@link TextTrack} object. + * + * @param {string} kind + * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata) + * + * @param {string} [label] + * Label to identify the text track + * + * @param {string} [language] + * Two letter language abbreviation + * + * @return {TextTrack} + * The TextTrack that gets created. + */ + ; + + _proto.addTextTrack = function addTextTrack(kind, label, language) { + if (!kind) { + throw new Error('TextTrack kind is required but was not provided'); + } + + return createTrackHelper(this, kind, label, language); + } + /** + * Create an emulated TextTrack for use by addRemoteTextTrack + * + * This is intended to be overridden by classes that inherit from + * Tech in order to create native or custom TextTracks. + * + * @param {Object} options + * The object should contain the options to initialize the TextTrack with. + * + * @param {string} [options.kind] + * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata). + * + * @param {string} [options.label]. + * Label to identify the text track + * + * @param {string} [options.language] + * Two letter language abbreviation. + * + * @return {HTMLTrackElement} + * The track element that gets created. + */ + ; + + _proto.createRemoteTextTrack = function createRemoteTextTrack(options) { + var track = mergeOptions(options, { + tech: this + }); + return new REMOTE.remoteTextEl.TrackClass(track); + } + /** + * Creates a remote text track object and returns an html track element. + * + * > Note: This can be an emulated {@link HTMLTrackElement} or a native one. + * + * @param {Object} options + * See {@link Tech#createRemoteTextTrack} for more detailed properties. + * + * @param {boolean} [manualCleanup=true] + * - When false: the TextTrack will be automatically removed from the video + * element whenever the source changes + * - When True: The TextTrack will have to be cleaned up manually + * + * @return {HTMLTrackElement} + * An Html Track Element. + * + * @deprecated The default functionality for this function will be equivalent + * to "manualCleanup=false" in the future. The manualCleanup parameter will + * also be removed. + */ + ; + + _proto.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) { + var _this7 = this; + + if (options === void 0) { + options = {}; + } + + var htmlTrackElement = this.createRemoteTextTrack(options); + + if (manualCleanup !== true && manualCleanup !== false) { + // deprecation warning + log.warn('Calling addRemoteTextTrack without explicitly setting the "manualCleanup" parameter to `true` is deprecated and default to `false` in future version of video.js'); + manualCleanup = true; + } // store HTMLTrackElement and TextTrack to remote list + + + this.remoteTextTrackEls().addTrackElement_(htmlTrackElement); + this.remoteTextTracks().addTrack(htmlTrackElement.track); + + if (manualCleanup !== true) { + // create the TextTrackList if it doesn't exist + this.ready(function () { + return _this7.autoRemoteTextTracks_.addTrack(htmlTrackElement.track); + }); + } + + return htmlTrackElement; + } + /** + * Remove a remote text track from the remote `TextTrackList`. + * + * @param {TextTrack} track + * `TextTrack` to remove from the `TextTrackList` + */ + ; + + _proto.removeRemoteTextTrack = function removeRemoteTextTrack(track) { + var trackElement = this.remoteTextTrackEls().getTrackElementByTrack_(track); // remove HTMLTrackElement and TextTrack from remote list + + this.remoteTextTrackEls().removeTrackElement_(trackElement); + this.remoteTextTracks().removeTrack(track); + this.autoRemoteTextTracks_.removeTrack(track); + } + /** + * Gets available media playback quality metrics as specified by the W3C's Media + * Playback Quality API. + * + * @see [Spec]{@link https://wicg.github.io/media-playback-quality} + * + * @return {Object} + * An object with supported media playback quality metrics + * + * @abstract + */ + ; + + _proto.getVideoPlaybackQuality = function getVideoPlaybackQuality() { + return {}; + } + /** + * Attempt to create a floating video window always on top of other windows + * so that users may continue consuming media while they interact with other + * content sites, or applications on their device. + * + * @see [Spec]{@link https://wicg.github.io/picture-in-picture} + * + * @return {Promise|undefined} + * A promise with a Picture-in-Picture window if the browser supports + * Promises (or one was passed in as an option). It returns undefined + * otherwise. + * + * @abstract + */ + ; + + _proto.requestPictureInPicture = function requestPictureInPicture() { + var PromiseClass = this.options_.Promise || window_1.Promise; + + if (PromiseClass) { + return PromiseClass.reject(); + } + } + /** + * A method to set a poster from a `Tech`. + * + * @abstract + */ + ; + + _proto.setPoster = function setPoster() {} + /** + * A method to check for the presence of the 'playsinline'