206 lines
8.6 KiB
JavaScript
206 lines
8.6 KiB
JavaScript
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'use strict';
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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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; }; }();
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var _events = require('../events');
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var _events2 = _interopRequireDefault(_events);
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var _eventHandler = require('../event-handler');
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var _eventHandler2 = _interopRequireDefault(_eventHandler);
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var _logger = require('../utils/logger');
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var _errors = require('../errors');
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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function _possibleConstructorReturn(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; }
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function _inherits(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; } /*
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* audio track controller
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*/
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var AudioTrackController = function (_EventHandler) {
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_inherits(AudioTrackController, _EventHandler);
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function AudioTrackController(hls) {
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_classCallCheck(this, AudioTrackController);
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var _this = _possibleConstructorReturn(this, (AudioTrackController.__proto__ || Object.getPrototypeOf(AudioTrackController)).call(this, hls, _events2.default.MANIFEST_LOADING, _events2.default.MANIFEST_LOADED, _events2.default.AUDIO_TRACK_LOADED, _events2.default.ERROR));
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_this.ticks = 0;
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_this.ontick = _this.tick.bind(_this);
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return _this;
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}
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_createClass(AudioTrackController, [{
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key: 'destroy',
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value: function destroy() {
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this.cleanTimer();
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_eventHandler2.default.prototype.destroy.call(this);
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}
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}, {
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key: 'cleanTimer',
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value: function cleanTimer() {
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if (this.timer) {
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clearTimeout(this.timer);
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this.timer = null;
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}
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}
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}, {
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key: 'tick',
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value: function tick() {
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this.ticks++;
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if (this.ticks === 1) {
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this.doTick();
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if (this.ticks > 1) {
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setTimeout(this.tick, 1);
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}
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this.ticks = 0;
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}
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}
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}, {
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key: 'doTick',
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value: function doTick() {
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this.updateTrack(this.trackId);
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}
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}, {
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key: 'onError',
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value: function onError(data) {
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if (data.fatal && data.type === _errors.ErrorTypes.NETWORK_ERROR) {
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this.cleanTimer();
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}
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}
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}, {
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key: 'onManifestLoading',
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value: function onManifestLoading() {
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// reset audio tracks on manifest loading
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this.tracks = [];
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this.trackId = -1;
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}
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}, {
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key: 'onManifestLoaded',
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value: function onManifestLoaded(data) {
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var _this2 = this;
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var tracks = data.audioTracks || [];
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var defaultFound = false;
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this.tracks = tracks;
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this.hls.trigger(_events2.default.AUDIO_TRACKS_UPDATED, { audioTracks: tracks });
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// loop through available audio tracks and autoselect default if needed
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var id = 0;
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tracks.forEach(function (track) {
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if (track.default && !defaultFound) {
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_this2.audioTrack = id;
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defaultFound = true;
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return;
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}
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id++;
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});
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if (defaultFound === false && tracks.length) {
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_logger.logger.log('no default audio track defined, use first audio track as default');
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this.audioTrack = 0;
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}
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}
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}, {
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key: 'onAudioTrackLoaded',
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value: function onAudioTrackLoaded(data) {
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if (data.id < this.tracks.length) {
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_logger.logger.log('audioTrack ' + data.id + ' loaded');
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this.tracks[data.id].details = data.details;
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// check if current playlist is a live playlist
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if (data.details.live && !this.timer) {
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// if live playlist we will have to reload it periodically
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// set reload period to playlist target duration
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this.timer = setInterval(this.ontick, 1000 * data.details.targetduration);
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}
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if (!data.details.live && this.timer) {
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// playlist is not live and timer is armed : stopping it
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this.cleanTimer();
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}
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}
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}
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/** get alternate audio tracks list from playlist **/
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}, {
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key: 'setAudioTrackInternal',
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value: function setAudioTrackInternal(newId) {
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// check if level idx is valid
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if (newId >= 0 && newId < this.tracks.length) {
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// stopping live reloading timer if any
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this.cleanTimer();
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this.trackId = newId;
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_logger.logger.log('switching to audioTrack ' + newId);
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var audioTrack = this.tracks[newId],
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hls = this.hls,
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type = audioTrack.type,
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url = audioTrack.url,
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eventObj = { id: newId, type: type, url: url };
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// keep AUDIO_TRACK_SWITCH for legacy reason
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hls.trigger(_events2.default.AUDIO_TRACK_SWITCH, eventObj);
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hls.trigger(_events2.default.AUDIO_TRACK_SWITCHING, eventObj);
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// check if we need to load playlist for this audio Track
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var details = audioTrack.details;
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if (url && (details === undefined || details.live === true)) {
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// track not retrieved yet, or live playlist we need to (re)load it
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_logger.logger.log('(re)loading playlist for audioTrack ' + newId);
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hls.trigger(_events2.default.AUDIO_TRACK_LOADING, { url: url, id: newId });
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}
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}
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}
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}, {
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key: 'updateTrack',
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value: function updateTrack(newId) {
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// check if level idx is valid
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if (newId >= 0 && newId < this.tracks.length) {
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// stopping live reloading timer if any
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this.cleanTimer();
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this.trackId = newId;
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_logger.logger.log('updating audioTrack ' + newId);
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var audioTrack = this.tracks[newId],
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url = audioTrack.url;
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// check if we need to load playlist for this audio Track
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var details = audioTrack.details;
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if (url && (details === undefined || details.live === true)) {
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// track not retrieved yet, or live playlist we need to (re)load it
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_logger.logger.log('(re)loading playlist for audioTrack ' + newId);
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this.hls.trigger(_events2.default.AUDIO_TRACK_LOADING, { url: url, id: newId });
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}
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}
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}
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}, {
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key: 'audioTracks',
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get: function get() {
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return this.tracks;
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}
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/** get index of the selected audio track (index in audio track lists) **/
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}, {
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key: 'audioTrack',
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get: function get() {
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return this.trackId;
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}
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/** select an audio track, based on its index in audio track lists**/
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,
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set: function set(audioTrackId) {
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if (this.trackId !== audioTrackId || this.tracks[audioTrackId].details === undefined) {
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this.setAudioTrackInternal(audioTrackId);
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}
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}
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}]);
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return AudioTrackController;
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}(_eventHandler2.default);
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exports.default = AudioTrackController;
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