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_OfflineStream.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 OfflineStreamProcessor from './OfflineStreamProcessor';
/**
* Initialize and Manage Offline Stream for each type
*/
/**
* @class OfflineStream
* @description Initialize and Manage Offline Stream for each type
* @param {Object} config - dependences
* @ignore
*/
function OfflineStream(config) {
config = config || {};
const context = this.context;
const eventBus = config.eventBus;
const events = config.events;
const errors = config.errors;
const constants = config.constants;
const dashConstants = config.dashConstants;
const settings = config.settings;
const debug = config.debug;
const errHandler = config.errHandler;
const mediaPlayerModel = config.mediaPlayerModel;
const abrController = config.abrController;
const playbackController = config.playbackController;
const adapter = config.adapter;
const dashMetrics = config.dashMetrics;
const baseURLController = config.baseURLController;
const timelineConverter = config.timelineConverter;
const segmentBaseController = config.segmentBaseController;
const offlineStoreController = config.offlineStoreController;
const manifestId = config.id;
const startedCb = config.callbacks && config.callbacks.started;
const progressionCb = config.callbacks && config.callbacks.progression;
const finishedCb = config.callbacks && config.callbacks.finished;
const updateManifest = config.callbacks && config.callbacks.updateManifestNeeded;
let instance,
offlineStreamProcessors,
startedOfflineStreamProcessors,
finishedOfflineStreamProcessors,
streamInfo,
representationsToUpdate,
allMediasInfosList,
progressionById;
function setup() {
resetInitialSettings();
}
/**
* Reset
*/
function resetInitialSettings() {
streamInfo = null;
offlineStreamProcessors = [];
startedOfflineStreamProcessors = 0;
finishedOfflineStreamProcessors = 0;
allMediasInfosList = [];
representationsToUpdate = [];
progressionById = {};
}
/**
* Initialize offlinestream
* @param {Object} initStreamInfo
*/
function initialize(initStreamInfo) {
streamInfo = initStreamInfo;
eventBus.on(events.DATA_UPDATE_COMPLETED, onDataUpdateCompleted, instance);
}
function getStreamId() {
return streamInfo.id;
}
/**
* Creates media infos list, so that user will be able to choose the representation he wants to download
*/
function getMediaInfos() {
let mediaInfos = adapter.getAllMediaInfoForType(streamInfo, constants.VIDEO);
mediaInfos = mediaInfos.concat(adapter.getAllMediaInfoForType(streamInfo, constants.AUDIO));
mediaInfos = mediaInfos.concat(adapter.getAllMediaInfoForType(streamInfo, constants.TEXT));
// mediaInfos = mediaInfos.concat(adapter.getAllMediaInfoForType(streamInfo, constants.MUXED));
// mediaInfos = mediaInfos.concat(adapter.getAllMediaInfoForType(streamInfo, constants.IMAGE));
eventBus.trigger(events.OFFLINE_RECORD_LOADEDMETADATA, {
id: manifestId,
mediaInfos: mediaInfos
});
}
/**
* Initialize with choosen representations by user
* @param {Object} mediasInfoList
*/
function initializeAllMediasInfoList(mediasInfoList) {
allMediasInfosList = mediasInfoList;
initializeMedia(streamInfo);
}
/**
* Initialize media for each type
* @param {Object} streamInfo
*/
function initializeMedia(streamInfo) {
createOfflineStreamProcessorFor(constants.VIDEO,streamInfo);
createOfflineStreamProcessorFor(constants.AUDIO,streamInfo);
createOfflineStreamProcessorFor(constants.TEXT,streamInfo);
createOfflineStreamProcessorFor(constants.MUXED,streamInfo);
createOfflineStreamProcessorFor(constants.IMAGE,streamInfo);
}
function createOfflineStreamProcessorFor(type, streamInfo) {
// filter mediaInfo according to choosen representation id
let allMediaInfoForType = adapter.getAllMediaInfoForType(streamInfo, type);
allMediaInfoForType.forEach((media) => {
media.bitrateList = media.bitrateList.filter((bitrate) => {
if (allMediasInfosList[type] && allMediasInfosList[type].indexOf(bitrate.id) !== -1) {
return true;
}
return false;
});
});
allMediaInfoForType = allMediaInfoForType.filter((media) => {
return (media.bitrateList && media.bitrateList.length > 0);
});
// cration of an offline stream processor for each choosen representation
allMediaInfoForType.forEach((mediaInfo) => {
if (mediaInfo.bitrateList) {
mediaInfo.bitrateList.forEach((bitrate) => {
createStreamProcessor(mediaInfo, bitrate);
});
}
});
return allMediaInfoForType;
}
function createStreamProcessor (mediaInfo, bitrate) {
let streamProcessor = OfflineStreamProcessor(context).create({
id: manifestId,
streamInfo: streamInfo,
debug: debug,
events: events,
errors: errors,
eventBus: eventBus,
constants: constants,
dashConstants: dashConstants,
settings: settings,
type: mediaInfo.type,
mimeType: mediaInfo.mimeType,
bitrate: bitrate,
errHandler: errHandler,
mediaPlayerModel: mediaPlayerModel,
abrController: abrController,
playbackController: playbackController,
adapter: adapter,
dashMetrics: dashMetrics,
baseURLController: baseURLController,
timelineConverter: timelineConverter,
offlineStoreController: offlineStoreController,
segmentBaseController: segmentBaseController,
callbacks: {
completed: onStreamCompleted,
progression: onStreamProgression
}
});
offlineStreamProcessors.push(streamProcessor);
streamProcessor.initialize(mediaInfo);
progressionById[bitrate.id] = null;
}
function onStreamCompleted() {
finishedOfflineStreamProcessors++;
if (finishedOfflineStreamProcessors === offlineStreamProcessors.length) {
finishedCb({sender: this, id: manifestId, message: 'Downloading has been successfully completed for this stream !'});
}
}
function onStreamProgression(streamProcessor, downloadedSegments, availableSegments ) {
progressionById[streamProcessor.getRepresentationId()] = {
downloadedSegments,
availableSegments
};
let segments = 0;
let allSegments = 0;
let waitForAllProgress;
for (var property in progressionById) {
if (progressionById.hasOwnProperty(property)) {
if (progressionById[property] === null) {
waitForAllProgress = true;
} else {
segments += progressionById[property].downloadedSegments;
allSegments += progressionById[property].availableSegments;
}
}
}
if (!waitForAllProgress && progressionCb) {
// all progression have been started, we can compute global progression
if (allSegments > 0) {
progressionCb(instance, segments, allSegments);
}
}
}
function onDataUpdateCompleted(e) {
if (e.currentRepresentation.segments && e.currentRepresentation.segments.length > 0) {
representationsToUpdate.push(e.currentRepresentation);
}
let sp;
// data are ready fr stream processor, let's start download
for (let i = 0; i < offlineStreamProcessors.length; i++ ) {
if (offlineStreamProcessors[i].getRepresentationController().getType() === e.mediaType) {
sp = offlineStreamProcessors[i];
break;
}
}
if (sp) {
checkIfAllOfflineStreamProcessorsStarted();
}
}
function checkIfAllOfflineStreamProcessorsStarted() {
startedOfflineStreamProcessors++;
if (startedOfflineStreamProcessors === offlineStreamProcessors.length) {
startedCb({sender: this, id: manifestId, message: 'Downloading started for this stream !'});
if (representationsToUpdate.length > 0) {
updateManifest({sender: this, id: manifestId, representations: representationsToUpdate });
} else {
startOfflineStreamProcessors();
}
}
}
function getStreamInfo() {
return streamInfo;
}
function getStartTime() {
return streamInfo ? streamInfo.start : NaN;
}
function getDuration() {
return streamInfo ? streamInfo.duration : NaN;
}
/**
* Stop offline stream processors
*/
function stopOfflineStreamProcessors() {
for (let i = 0; i < offlineStreamProcessors.length; i++) {
offlineStreamProcessors[i].stop();
}
}
/**
* Start offline stream processors
*/
function startOfflineStreamProcessors() {
for (let i = 0; i < offlineStreamProcessors.length; i++) {
offlineStreamProcessors[i].start();
}
}
function deactivate() {
let ln = offlineStreamProcessors ? offlineStreamProcessors.length : 0;
for (let i = 0; i < ln; i++) {
offlineStreamProcessors[i].removeExecutedRequestsBeforeTime(getStartTime() + getDuration());
offlineStreamProcessors[i].reset();
}
}
/**
* Reset
*/
function reset() {
stopOfflineStreamProcessors();
deactivate();
resetInitialSettings();
eventBus.off(events.DATA_UPDATE_COMPLETED, onDataUpdateCompleted, instance);
}
instance = {
initialize: initialize,
getStreamId: getStreamId,
getMediaInfos: getMediaInfos,
initializeAllMediasInfoList: initializeAllMediasInfoList,
getStreamInfo: getStreamInfo,
stopOfflineStreamProcessors: stopOfflineStreamProcessors,
startOfflineStreamProcessors: startOfflineStreamProcessors,
reset: reset
};
setup();
return instance;
}
OfflineStream.__dashjs_factory_name = 'OfflineStream';
export default dashjs.FactoryMaker.getClassFactory(OfflineStream); /* jshint ignore:line */
</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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