dashjs
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A reference client implementation for the playback of MPEG DASH via Javascript and compliant browsers.
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href="MediaPlayerEvents.html#event:BUFFER_LEVEL_UPDATED">BUFFER_LEVEL_UPDATED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:BUFFER_LOADED">BUFFER_LOADED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:CAN_PLAY">CAN_PLAY</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:CAN_PLAY_THROUGH">CAN_PLAY_THROUGH</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:CAPTION_CONTAINER_RESIZE">CAPTION_CONTAINER_RESIZE</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:CAPTION_RENDERED">CAPTION_RENDERED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:CONFORMANCE_VIOLATION">CONFORMANCE_VIOLATION</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:CONTENT_STEERING_REQUEST_COMPLETED">CONTENT_STEERING_REQUEST_COMPLETED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:CUE_ENTER">CUE_ENTER</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:CUE_ENTER">CUE_ENTER</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:DVB_FONT_DOWNLOAD_ADDED">DVB_FONT_DOWNLOAD_ADDED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:DVB_FONT_DOWNLOAD_COMPLETE">DVB_FONT_DOWNLOAD_COMPLETE</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:DVB_FONT_DOWNLOAD_FAILED">DVB_FONT_DOWNLOAD_FAILED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:DYNAMIC_TO_STATIC">DYNAMIC_TO_STATIC</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:ERROR">ERROR</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:EVENT_MODE_ON_RECEIVE">EVENT_MODE_ON_RECEIVE</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:EVENT_MODE_ON_START">EVENT_MODE_ON_START</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:FRAGMENT_LOADING_ABANDONED">FRAGMENT_LOADING_ABANDONED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:FRAGMENT_LOADING_COMPLETED">FRAGMENT_LOADING_COMPLETED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:FRAGMENT_LOADING_PROGRESS">FRAGMENT_LOADING_PROGRESS</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:FRAGMENT_LOADING_STARTED">FRAGMENT_LOADING_STARTED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:INBAND_PRFT">INBAND_PRFT</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:LOG">LOG</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:MANIFEST_LOADED">MANIFEST_LOADED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:MANIFEST_LOADING_FINISHED">MANIFEST_LOADING_FINISHED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:MANIFEST_LOADING_STARTED">MANIFEST_LOADING_STARTED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:MANIFEST_VALIDITY_CHANGED">MANIFEST_VALIDITY_CHANGED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:METRIC_ADDED">METRIC_ADDED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:METRIC_CHANGED">METRIC_CHANGED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:METRIC_UPDATED">METRIC_UPDATED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:METRICS_CHANGED">METRICS_CHANGED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:PERIOD_SWITCH_COMPLETED">PERIOD_SWITCH_COMPLETED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:PERIOD_SWITCH_STARTED">PERIOD_SWITCH_STARTED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:PLAYBACK_ENDED">PLAYBACK_ENDED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:PLAYBACK_ERROR">PLAYBACK_ERROR</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:PLAYBACK_LOADED_DATA">PLAYBACK_LOADED_DATA</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:PLAYBACK_METADATA_LOADED">PLAYBACK_METADATA_LOADED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:PLAYBACK_NOT_ALLOWED">PLAYBACK_NOT_ALLOWED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:PLAYBACK_PAUSED">PLAYBACK_PAUSED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:PLAYBACK_PLAYING">PLAYBACK_PLAYING</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:PLAYBACK_PROGRESS">PLAYBACK_PROGRESS</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:PLAYBACK_RATE_CHANGED">PLAYBACK_RATE_CHANGED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:PLAYBACK_SEEKED">PLAYBACK_SEEKED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:PLAYBACK_SEEKING">PLAYBACK_SEEKING</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:PLAYBACK_STALLED">PLAYBACK_STALLED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:PLAYBACK_STARTED">PLAYBACK_STARTED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:PLAYBACK_TIME_UPDATED">PLAYBACK_TIME_UPDATED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:PLAYBACK_VOLUME_CHANGED">PLAYBACK_VOLUME_CHANGED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:PLAYBACK_WAITING">PLAYBACK_WAITING</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:QUALITY_CHANGE_RENDERED">QUALITY_CHANGE_RENDERED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:QUALITY_CHANGE_REQUESTED">QUALITY_CHANGE_REQUESTED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:REPRESENTATION_SWITCH">REPRESENTATION_SWITCH</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:STREAM_ACTIVATED">STREAM_ACTIVATED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:STREAM_DEACTIVATED">STREAM_DEACTIVATED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:STREAM_INITIALIZED">STREAM_INITIALIZED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:STREAM_INITIALIZING">STREAM_INITIALIZING</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:STREAM_TEARDOWN_COMPLETE">STREAM_TEARDOWN_COMPLETE</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:STREAM_UPDATED">STREAM_UPDATED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:TEXT_TRACK_ADDED">TEXT_TRACK_ADDED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:TEXT_TRACKS_ADDED">TEXT_TRACKS_ADDED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:THROUGHPUT_MEASUREMENT_STORED">THROUGHPUT_MEASUREMENT_STORED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:TRACK_CHANGE_RENDERED">TRACK_CHANGE_RENDERED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:TTML_PARSED">TTML_PARSED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:TTML_TO_PARSE">TTML_TO_PARSE</a></div><div class="sidebar-section-children"><a href="MetricsReportingEvents.html#event:CMCD_DATA_GENERATED">CMCD_DATA_GENERATED</a></div><div class="sidebar-section-children"><a href="OfflineEvents.html#event:OFFLINE_RECORD_FINISHED">OFFLINE_RECORD_FINISHED</a></div><div class="sidebar-section-children"><a href="OfflineEvents.html#event:OFFLINE_RECORD_LOADEDMETADATA">OFFLINE_RECORD_LOADEDMETADATA</a></div><div class="sidebar-section-children"><a href="OfflineEvents.html#event:OFFLINE_RECORD_STARTED">OFFLINE_RECORD_STARTED</a></div><div class="sidebar-section-children"><a href="OfflineEvents.html#event:OFFLINE_RECORD_STOPPED">OFFLINE_RECORD_STOPPED</a></div><div class="sidebar-section-children"><a href="ProtectionEvents.html#event:KEY_ADDED">KEY_ADDED</a></div><div class="sidebar-section-children"><a href="ProtectionEvents.html#event:KEY_ERROR">KEY_ERROR</a></div><div class="sidebar-section-children"><a href="ProtectionEvents.html#event:KEY_MESSAGE">KEY_MESSAGE</a></div><div class="sidebar-section-children"><a href="ProtectionEvents.html#event:KEY_SESSION_CLOSED">KEY_SESSION_CLOSED</a></div><div class="sidebar-section-children"><a href="ProtectionEvents.html#event:KEY_SESSION_CREATED">KEY_SESSION_CREATED</a></div><div class="sidebar-section-children"><a href="ProtectionEvents.html#event:KEY_SESSION_REMOVED">KEY_SESSION_REMOVED</a></div><div class="sidebar-section-children"><a href="ProtectionEvents.html#event:KEY_STATUSES_CHANGED">KEY_STATUSES_CHANGED</a></div><div class="sidebar-section-children"><a href="ProtectionEvents.html#event:KEY_SYSTEM_ACCESS_COMPLETE">KEY_SYSTEM_ACCESS_COMPLETE</a></div><div class="sidebar-section-children"><a href="ProtectionEvents.html#event:KEY_SYSTEM_SELECTED">KEY_SYSTEM_SELECTED</a></div><div 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class="has-anchor">offline_controllers_OfflineController.js</h1></header><article><pre class="prettyprint source lang-js"><code>/**
* The copyright in this software is being made available under the BSD License,
* included below. This software may be subject to other third party and contributor
* rights, including patent rights, and no such rights are granted under this license.
*
* Copyright (c) 2013, Dash Industry Forum.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Dash Industry Forum nor the names of its
* contributors may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 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 THE COPYRIGHT HOLDER 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.
*/
import OfflineConstants from '../constants/OfflineConstants';
import OfflineStoreController from './OfflineStoreController';
import OfflineDownload from '../OfflineDownload';
import IndexDBOfflineLoader from '../net/IndexDBOfflineLoader';
import OfflineUrlUtils from '../utils/OfflineUrlUtils';
import OfflineEvents from '../events/OfflineEvents';
import OfflineErrors from '../errors/OfflineErrors';
import OfflineRecord from '../vo/OfflineDownloadVo';
/**
* @module OfflineController
* @param {Object} config - dependencies
* @description Provides access to offline stream recording and playback functionality. This module can be accessed using the MediaPlayer API getOfflineController()
*/
function OfflineController(config) {
const context = this.context;
const errHandler = config.errHandler;
const events = config.events;
const errors = config.errors;
const settings = config.settings;
const eventBus = config.eventBus;
const debug = config.debug;
const manifestLoader = config.manifestLoader;
const manifestModel = config.manifestModel;
const mediaPlayerModel = config.mediaPlayerModel;
const abrController = config.abrController;
const playbackController = config.playbackController;
const dashMetrics = config.dashMetrics;
const timelineConverter = config.timelineConverter;
const segmentBaseController = config.segmentBaseController;
const adapter = config.adapter;
const manifestUpdater = config.manifestUpdater;
const baseURLController = config.baseURLController;
const schemeLoaderFactory = config.schemeLoaderFactory;
const constants = config.constants;
const dashConstants = config.dashConstants;
const urlUtils = config.urlUtils;
let instance,
downloads,
logger,
offlineStoreController,
offlineUrlUtils;
function setup() {
logger = debug.getLogger(instance);
offlineStoreController = OfflineStoreController(context).create({
eventBus: config.eventBus,
errHandler: errHandler
});
offlineUrlUtils = OfflineUrlUtils(context).getInstance();
urlUtils.registerUrlRegex(offlineUrlUtils.getRegex(), offlineUrlUtils);
schemeLoaderFactory.registerLoader(OfflineConstants.OFFLINE_SCHEME, IndexDBOfflineLoader);
downloads = [];
}
/*
---------------------------------------------------------------------------
DOWNLOAD LIST FUNCTIONS
---------------------------------------------------------------------------
*/
function getDownloadFromId(id) {
let download = downloads.find((item) => {
return item.getId() === id;
});
return download;
}
function createDownloadFromId(id) {
let download;
download = getDownloadFromId(id);
if (!download) {
// create download controller
download = OfflineDownload(context).create({
id: id,
eventBus: eventBus,
events: events,
errors: errors,
settings: settings,
manifestLoader: manifestLoader,
manifestModel: manifestModel,
mediaPlayerModel: mediaPlayerModel,
manifestUpdater: manifestUpdater,
baseURLController: baseURLController,
abrController: abrController,
playbackController: playbackController,
adapter: adapter,
dashMetrics: dashMetrics,
timelineConverter: timelineConverter,
errHandler: errHandler,
segmentBaseController: segmentBaseController,
offlineStoreController: offlineStoreController,
debug: debug,
constants: constants,
dashConstants: dashConstants,
urlUtils: urlUtils
});
downloads.push(download);
}
return download;
}
function createDownloadFromStorage(offline) {
let download = getDownloadFromId(offline.manifestId);
if (!download) {
download = createDownloadFromId(offline.manifestId);
let status = offline.status;
if (status === OfflineConstants.OFFLINE_STATUS_STARTED) {
status = OfflineConstants.OFFLINE_STATUS_STOPPED;
}
download.setInitialState({
url: offline.url,
progress: offline.progress,
originalUrl: offline.originalURL,
status: status
});
}
return download;
}
function removeDownloadFromId(id) {
return new Promise(function (resolve, reject) {
let download = getDownloadFromId(id);
let waitForStatusChanged = false;
if (download) {
//is download running?
if (download.isDownloading()) {
//register status changed event
waitForStatusChanged = true;
const downloadStopped = function () {
eventBus.off(events.OFFLINE_RECORD_STOPPED, downloadStopped, instance);
return offlineStoreController.deleteDownloadById(id).then(function () {
resolve();
}).catch(function (err) {
reject(err);
});
};
eventBus.on(events.OFFLINE_RECORD_STOPPED, downloadStopped, instance);
}
download.deleteDownload();
let index = downloads.indexOf(download);
downloads.splice(index, 1);
}
if (!waitForStatusChanged) {
resolve();
}
});
}
function generateManifestId() {
let timestamp = new Date().getTime();
return timestamp;
}
/*
---------------------------------------------------------------------------
OFFLINE CONTROLLER API
---------------------------------------------------------------------------
*/
/**
* Loads records from storage
* This methods has to be called first, to be sure that all downloads have been loaded
*
* @return {Promise} asynchronously resolved
* @memberof module:OfflineController
*/
function loadRecordsFromStorage() {
return new Promise(function (resolve, reject) {
offlineStoreController.getAllManifests().then((items) => {
items.manifests.forEach((offline) => {
createDownloadFromStorage(offline);
});
resolve();
}).catch((e) => {
logger.error('Failed to load downloads ' + e);
reject(e);
});
});
}
/**
* Get all records from storage
*
* @return {Promise} asynchronously resolved with records
* @memberof module:OfflineController
* @instance
*/
function getAllRecords() {
let records = [];
downloads.forEach((download) => {
const record = new OfflineRecord();
record.id = download.getId();
record.progress = download.getDownloadProgression();
record.url = download.getOfflineUrl();
record.originalUrl = download.getManifestUrl();
record.status = download.getStatus();
records.push(record);
});
return records;
}
/**
* Create a new content record in storage and download manifest from url
*
* @param {string} manifestURL - the content manifest url
* @return {Promise} asynchronously resolved with record identifier
* @memberof module:OfflineController
* @instance
*/
function createRecord(manifestURL) {
return new Promise(function (resolve, reject) {
let id = generateManifestId();
// create download controller
let download = createDownloadFromId(id);
download.downloadFromUrl(manifestURL).then(() => {
download.initDownload();
resolve(id);
})
.catch((e) => {
logger.error('Failed to download ' + e);
removeDownloadFromId(id).then(function () {
reject(e);
});
});
});
}
/**
* Start downloading the record with selected tracks representations
*
* @param {string} id - record identifier
* @param {MediaInfo[]} mediaInfos - the selected tracks representations
* @memberof module:OfflineController
* @instance
*/
function startRecord(id, mediaInfos) {
let download = getDownloadFromId(id);
if (download) {
download.startDownload(mediaInfos);
}
}
/**
* Stop downloading of the record
*
* @param {string} id - record identifier
* @memberof module:OfflineController
* @instance
*/
function stopRecord(id) {
let download = getDownloadFromId(id);
if (download) {
download.stopDownload();
}
}
/**
* Resume downloading of the record
*
* @param {string} id - record identifier
* @memberof module:OfflineController
* @instance
*/
function resumeRecord(id) {
let download = getDownloadFromId(id);
if (download) {
download.resumeDownload();
}
}
/**
* Deletes a record from storage
*
* @param {string} id - record identifier
* @memberof module:OfflineController
* @instance
*/
function deleteRecord(id) {
return removeDownloadFromId(id).then(function () {
return offlineStoreController.deleteDownloadById(id);
});
}
/**
* Get download progression of a record
*
* @param {string} id - record identifier
* @return {number} percentage progression
* @memberof module:OfflineController
* @instance
*/
function getRecordProgression(id) {
let download = getDownloadFromId(id);
if (download) {
return download.getDownloadProgression();
}
return 0;
}
/**
* Reset all records
* @memberof module:OfflineController
* @instance
*/
function resetRecords() {
downloads.forEach((download) => {
download.resetDownload();
});
}
/**
* Reset
* @instance
*/
function reset() {
resetRecords();
schemeLoaderFactory.unregisterLoader(OfflineConstants.OFFLINE_SCHEME);
}
instance = {
loadRecordsFromStorage: loadRecordsFromStorage,
createRecord: createRecord,
startRecord: startRecord,
stopRecord: stopRecord,
resumeRecord: resumeRecord,
deleteRecord: deleteRecord,
getRecordProgression: getRecordProgression,
getAllRecords: getAllRecords,
resetRecords: resetRecords,
reset: reset
};
setup();
return instance;
}
OfflineController.__dashjs_factory_name = 'OfflineController';
const factory = dashjs.FactoryMaker.getClassFactory(OfflineController); /* jshint ignore:line */
factory.events = OfflineEvents;
factory.errors = OfflineErrors;
dashjs.FactoryMaker.updateClassFactory(OfflineController.__dashjs_factory_name, factory); /* jshint ignore:line */
export default factory;
</code></pre></article></section></div></div></div><div class="search-container" id="PkfLWpAbet" style="display:none"><div class="wrapper" id="iCxFxjkHbP"><button class="icon-button search-close-button" id="VjLlGakifb" aria-label="close search"><svg><use xlink:href="#close-icon"></use></svg></button><div class="search-box-c"><svg><use xlink:href="#search-icon"></use></svg> <input type="text" id="vpcKVYIppa" class="search-input" placeholder="Search..." autofocus></div><div class="search-result-c" id="fWwVHRuDuN"><span class="search-result-c-text">Type anything to view search result</span></div></div></div><div class="mobile-menu-icon-container"><button class="icon-button" id="mobile-menu" data-isopen="false" aria-label="menu"><svg><use xlink:href="#menu-icon"></use></svg></button></div><div id="mobile-sidebar" class="mobile-sidebar-container"><div class="mobile-sidebar-wrapper"><a href="/" class="sidebar-title sidebar-title-anchor">Home</a><div class="mobile-nav-links"></div><div 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