dashjs
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A reference client implementation for the playback of MPEG DASH via Javascript and compliant browsers.
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<!DOCTYPE html><html lang="en" style="font-size:16px"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1"><link rel="icon" href="https://dashif.org/img/favicon.ico"><link type="text/css" rel="stylesheet" href="jsdoc-custom.css"><title>Source: dash/DashMetrics.js</title><!--[if lt IE 9]>
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href="module-Settings.html">Settings</a></div></div><div class="sidebar-section-title with-arrow" data-isopen="false" id="sidebar-classes"><div>Classes</div><svg><use xlink:href="#down-icon"></use></svg></div><div class="sidebar-section-children-container"><div class="sidebar-section-children"><a href="Errors.html">Errors</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html">MediaPlayerEvents</a></div><div class="sidebar-section-children"><a href="MediaPlayerModel.html">MediaPlayerModel</a></div><div class="sidebar-section-children"><a href="MetricsReportingEvents.html">MetricsReportingEvents</a></div><div class="sidebar-section-children"><a href="MssErrors.html">MssErrors</a></div><div class="sidebar-section-children"><a href="OfflineErrors.html">OfflineErrors</a></div><div class="sidebar-section-children"><a href="OfflineEvents.html">OfflineEvents</a></div><div class="sidebar-section-children"><a href="ProtectionErrors.html">ProtectionErrors</a></div><div class="sidebar-section-children"><a href="ProtectionEvents.html">ProtectionEvents</a></div></div><div class="sidebar-section-title with-arrow" data-isopen="false" id="sidebar-events"><div>Events</div><svg><use xlink:href="#down-icon"></use></svg></div><div class="sidebar-section-children-container"><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:ADAPTATION_SET_REMOVED_NO_CAPABILITIES">ADAPTATION_SET_REMOVED_NO_CAPABILITIES</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:AST_IN_FUTURE">AST_IN_FUTURE</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:BASE_URLS_UPDATED">BASE_URLS_UPDATED</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:BUFFER_EMPTY">BUFFER_EMPTY</a></div><div class="sidebar-section-children"><a href="MediaPlayerEvents.html#event:BUFFER_LEVEL_STATE_CHANGED">BUFFER_LEVEL_STATE_CHANGED</a></div><div class="sidebar-section-children"><a 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 class="sidebar-section-children"><a href="ProtectionEvents.html#event:LICENSE_REQUEST_COMPLETE">LICENSE_REQUEST_COMPLETE</a></div><div class="sidebar-section-children"><a href="ProtectionEvents.html#event:LICENSE_REQUEST_SENDING">LICENSE_REQUEST_SENDING</a></div><div class="sidebar-section-children"><a href="ProtectionEvents.html#event:PROTECTION_CREATED">PROTECTION_CREATED</a></div><div class="sidebar-section-children"><a href="ProtectionEvents.html#event:PROTECTION_DESTROYED">PROTECTION_DESTROYED</a></div></div><div class="sidebar-section-title with-arrow" data-isopen="false" id="sidebar-global"><div>Global</div><svg><use xlink:href="#down-icon"></use></svg></div><div class="sidebar-section-children-container"><div class="sidebar-section-children"><a href="global.html#LICENSE_SERVER_MANIFEST_CONFIGURATIONS">LICENSE_SERVER_MANIFEST_CONFIGURATIONS</a></div><div class="sidebar-section-children"><a href="global.html#MediaType">MediaType</a></div></div></div></div></div><div class="navbar-container" id="VuAckcnZhf"><nav class="navbar"><div class="navbar-left-items"></div><div class="navbar-right-items"><div class="navbar-right-item"><button class="icon-button search-button" aria-label="open-search"><svg><use xlink:href="#search-icon"></use></svg></button></div><div class="navbar-right-item"><button class="icon-button theme-toggle" aria-label="toggle-theme"><svg><use class="theme-svg-use" xlink:href="#dark-theme-icon"></use></svg></button></div><div class="navbar-right-item"><button class="icon-button font-size" aria-label="change-font-size"><svg><use xlink:href="#font-size-icon"></use></svg></button></div></div><nav></nav></nav></div><div class="toc-container"><div class="toc-content"><span class="bold">On this page</span><div id="eed4d2a0bfd64539bb9df78095dec881"></div></div></div><div class="body-wrapper"><div class="main-content"><div class="main-wrapper"><section id="source-page" class="source-page"><header><h1 id="title" class="has-anchor">dash_DashMetrics.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 Constants from '../streaming/constants/Constants';
import { HTTPRequest } from '../streaming/vo/metrics/HTTPRequest';
import FactoryMaker from '../core/FactoryMaker';
import MetricsConstants from '../streaming/constants/MetricsConstants';
import Round10 from './utils/Round10';
import MetricsModel from '../streaming/models/MetricsModel';
import Utils from '../core/Utils';
import {
PlayList,
PlayListTrace
} from '../streaming/vo/metrics/PlayList';
/**
* @module DashMetrics
* @description The DashMetrics module can be accessed using the MediaPlayer API getDashMetrics()
* @param {object} config
*/
function DashMetrics(config) {
config = config || {};
const context = this.context;
let instance,
playListTraceMetricsClosed,
playListTraceMetrics,
playListMetrics;
let metricsModel = config.metricsModel;
function setup() {
metricsModel = metricsModel || MetricsModel(context).getInstance({settings: config.settings});
resetInitialSettings();
}
function resetInitialSettings() {
playListTraceMetricsClosed = true;
playListTraceMetrics = null;
playListMetrics = null;
}
/**
* Returns the latest Representation switch for a given media type
* @param {MediaType} mediaType
* @returns {*}
* @memberof module:DashMetrics
* @instance
*/
function getCurrentRepresentationSwitch(mediaType) {
const metrics = metricsModel.getMetricsFor(mediaType, true);
return getCurrent(metrics, MetricsConstants.TRACK_SWITCH);
}
/**
* @param {MediaType} mediaType
* @param {Date} t time of the switch event
* @param {Date} mt media presentation time
* @param {string} to id of representation
* @param {string} lto if present, subrepresentation reference
* @memberof module:DashMetrics
* @instance
* @ignore
*/
function addRepresentationSwitch(mediaType, t, mt, to, lto) {
metricsModel.addRepresentationSwitch(mediaType, t, mt, to, lto);
}
/**
* Returns the current buffer state for a given media type
* @param {MediaType} mediaType
* @returns {number}
* @memberof module:DashMetrics
* @instance
*/
function getCurrentBufferState(mediaType) {
const metrics = metricsModel.getMetricsFor(mediaType, true);
return getCurrent(metrics, MetricsConstants.BUFFER_STATE);
}
/**
* Returns the current buffer level for a given media type
* @param {MediaType} mediaType
* @returns {number}
* @memberof module:DashMetrics
* @instance
*/
function getCurrentBufferLevel(mediaType) {
const metrics = metricsModel.getMetricsFor(mediaType, true);
const metric = getCurrent(metrics, MetricsConstants.BUFFER_LEVEL);
if (metric) {
return Round10.round10(metric.level / 1000, -3);
}
return 0;
}
/**
* @param {MediaType} mediaType
* @param {number} t
* @param {number} level
* @memberof module:DashMetrics
* @instance
* @ignore
*/
function addBufferLevel(mediaType, t, level) {
metricsModel.addBufferLevel(mediaType, t, level);
}
/**
* @param {MediaType} mediaType
* @param {string} state
* @param {number} target
* @memberof module:DashMetrics
* @instance
* @ignore
*/
function addBufferState(mediaType, state, target) {
metricsModel.addBufferState(mediaType, state, target);
}
/**
* @memberof module:DashMetrics
* @instance
* @ignore
*/
function clearAllCurrentMetrics () {
metricsModel.clearAllCurrentMetrics();
}
/**
* Returns the latest HTTP request for a given media type
* @param {MediaType} mediaType
* @returns {*}
* @memberof module:DashMetrics
* @instance
*/
function getCurrentHttpRequest(mediaType) {
const metrics = metricsModel.getMetricsFor(mediaType, true);
if (!metrics) {
return null;
}
const httpList = metrics.HttpList;
let currentHttpList = null;
let httpListLastIndex;
if (!httpList || httpList.length <= 0) {
return null;
}
httpListLastIndex = httpList.length - 1;
while (httpListLastIndex >= 0) {
if (httpList[httpListLastIndex].responsecode) {
currentHttpList = httpList[httpListLastIndex];
break;
}
httpListLastIndex--;
}
return currentHttpList;
}
/**
* Returns all HTTP requests for a given media type
* @param {MediaType} mediaType
* @returns {*}
* @memberof module:DashMetrics
* @instance
*/
function getHttpRequests(mediaType) {
const metrics = metricsModel.getMetricsFor(mediaType, true);
if (!metrics) {
return [];
}
return !!metrics.HttpList ? metrics.HttpList : [];
}
/**
* @param {MediaType} mediaType
* @param {Array} loadingRequests
* @param {Array} executedRequests
* @memberof module:DashMetrics
* @instance
* @ignore
*/
function addRequestsQueue(mediaType, loadingRequests, executedRequests) {
metricsModel.addRequestsQueue(mediaType, loadingRequests, executedRequests);
}
/**
* Returns the latest metrics for a given metric list and specific metric name
* @param {MetricsList} metrics
* @param {string} metricName
* @returns {*}
* @memberof module:DashMetrics
* @instance
*/
function getCurrent(metrics, metricName) {
if (!metrics) {
return null;
}
const list = metrics[metricName];
return (!list || list.length === 0) ? null : list[list.length - 1];
}
/**
* Returns the number of dropped frames
* @returns {*}
* @memberof module:DashMetrics
* @instance
*/
function getCurrentDroppedFrames() {
const metrics = metricsModel.getMetricsFor(Constants.VIDEO, true);
return getCurrent(metrics, MetricsConstants.DROPPED_FRAMES);
}
/**
* @param {number} quality
* @memberof module:DashMetrics
* @instance
* @ignore
*/
function addDroppedFrames(quality) {
metricsModel.addDroppedFrames(Constants.VIDEO, quality);
}
/**
* Returns the current scheduling info for a given media type
* @param {MediaType} mediaType
* @returns {*}
* @memberof module:DashMetrics
* @instance
*/
function getCurrentSchedulingInfo(mediaType) {
const metrics = metricsModel.getMetricsFor(mediaType, true);
return getCurrent(metrics, MetricsConstants.SCHEDULING_INFO);
}
/**
* @param {object} request
* @param {string} state
* @memberof module:DashMetrics
* @instance
* @ignore
*/
function addSchedulingInfo(request, state) {
metricsModel.addSchedulingInfo(
request.mediaType,
new Date(),
request.type,
request.startTime,
request.availabilityStartTime,
request.duration,
request.quality,
request.range,
state);
}
/**
* Returns the current manifest update information
* @returns {*}
* @memberof module:DashMetrics
* @instance
*/
function getCurrentManifestUpdate() {
const streamMetrics = metricsModel.getMetricsFor(Constants.STREAM);
return getCurrent(streamMetrics, MetricsConstants.MANIFEST_UPDATE);
}
/**
* @param {object} updatedFields fields to be updated
* @memberof module:DashMetrics
* @instance
* @ignore
*/
function updateManifestUpdateInfo(updatedFields) {
const manifestUpdate = this.getCurrentManifestUpdate();
metricsModel.updateManifestUpdateInfo(manifestUpdate, updatedFields);
}
/**
* @param {object} streamInfo
* @memberof module:DashMetrics
* @instance
* @ignore
*/
function addManifestUpdateStreamInfo(streamInfo) {
if (streamInfo) {
const manifestUpdate = this.getCurrentManifestUpdate();
metricsModel.addManifestUpdateStreamInfo(manifestUpdate, streamInfo.id, streamInfo.index, streamInfo.start, streamInfo.duration);
}
}
/**
* @param {object} request
* @memberof module:DashMetrics
* @instance
* @ignore
*/
function addManifestUpdate(request) {
metricsModel.addManifestUpdate(Constants.STREAM, request.type, request.requestStartDate, request.requestEndDate);
}
/**
* @param {object} request
* @param {string} responseURL
* @param {number} responseStatus
* @param {object} responseHeaders
* @param {object} traces
* @memberof module:DashMetrics
* @instance
* @ignore
*/
function addHttpRequest(request, responseURL, responseStatus, responseHeaders, traces, cmsd) {
metricsModel.addHttpRequest(request.mediaType,
null,
request.type,
request.url,
request.quality,
responseURL,
request.serviceLocation || null,
request.range || null,
request.requestStartDate,
request.firstByteDate,
request.requestEndDate,
responseStatus,
request.duration,
responseHeaders,
traces,
request.fileLoaderType,
cmsd);
}
/**
* @param {object} representation
* @param {MediaType} mediaType
* @memberof module:DashMetrics
* @instance
* @ignore
*/
function addManifestUpdateRepresentationInfo(representation, mediaType) {
if (representation) {
const manifestUpdateInfo = this.getCurrentManifestUpdate();
metricsModel.addManifestUpdateRepresentationInfo(manifestUpdateInfo, representation.id, representation.index, representation.streamIndex, mediaType, representation.presentationTimeOffset, representation.startNumber, representation.fragmentInfoType);
}
}
/**
* Returns the current DVR window
* @param {MediaType} mediaType
* @returns {*}
* @memberof module:DashMetrics
* @instance
*/
function getCurrentDVRInfo(mediaType) {
const metrics = mediaType ? metricsModel.getMetricsFor(mediaType, true) :
metricsModel.getMetricsFor(Constants.VIDEO, true) || metricsModel.getMetricsFor(Constants.AUDIO, true);
return getCurrent(metrics, MetricsConstants.DVR_INFO);
}
/**
* @param {MediaType} mediaType
* @param {Date} currentTime time of the switch event
* @param {object} mpd mpd reference
* @param {object} range range of the dvr info
* @memberof module:DashMetrics
* @instance
* @ignore
*/
function addDVRInfo(mediaType, currentTime, mpd, range) {
metricsModel.addDVRInfo(mediaType, currentTime, mpd, range);
}
/**
* Returns the value for a specific request headers used in the latest MPD request
* @param {string} id
* @returns {*}
* @memberof module:DashMetrics
* @instance
*/
function getLatestMPDRequestHeaderValueByID(id) {
if (!id) {
return null;
}
let headers = {};
let httpRequestList,
httpRequest,
i;
httpRequestList = getHttpRequests(Constants.STREAM);
for (i = httpRequestList.length - 1; i >= 0; i--) {
httpRequest = httpRequestList[i];
if (httpRequest.type === HTTPRequest.MPD_TYPE) {
headers = Utils.parseHttpHeaders(httpRequest._responseHeaders);
break;
}
}
const value = headers[id.toLowerCase()];
return value === undefined ? null : value;
}
/**
* Returns the value for a specific request headers used in the latest fragment request
* @param {MediaType} mediaType
* @param {string} id
* @returns {*}
* @memberof module:DashMetrics
* @instance
*/
function getLatestFragmentRequestHeaderValueByID(mediaType, id) {
if (!id) {
return null;
}
let headers = {};
let httpRequest = getCurrentHttpRequest(mediaType);
if (httpRequest) {
headers = Utils.parseHttpHeaders(httpRequest._responseHeaders);
}
const value = headers[id.toLowerCase()];
return value === undefined ? null : value;
}
/**
* @memberof module:DashMetrics
* @instance
* @ignore
*/
function addPlayList() {
if (playListMetrics) {
metricsModel.addPlayList(playListMetrics);
playListMetrics = null;
}
}
/**
* Create a new playlist metric
* @param {number} mediaStartTime
* @param {string} startReason
* @ignore
*/
function createPlaylistMetrics(mediaStartTime, startReason) {
playListMetrics = new PlayList();
playListMetrics.start = new Date();
playListMetrics.mstart = mediaStartTime;
playListMetrics.starttype = startReason;
}
/**
* Create a playlist trace metric
* @param {number} representationId
* @param {number} mediaStartTime
* @param {number} speed
* @ignore
*/
function createPlaylistTraceMetrics(representationId, mediaStartTime, speed) {
if (playListTraceMetricsClosed === true ) {
playListTraceMetricsClosed = false;
playListTraceMetrics = new PlayListTrace();
playListTraceMetrics.representationid = representationId;
playListTraceMetrics.start = new Date();
playListTraceMetrics.mstart = mediaStartTime;
playListTraceMetrics.playbackspeed = speed !== null ? speed.toString() : null;
}
}
/**
* Update existing playlist trace metric
* @param {object} traceToUpdate
* @ignore
*/
function updatePlayListTraceMetrics(traceToUpdate) {
if (playListTraceMetrics) {
for (let field in playListTraceMetrics) {
playListTraceMetrics[field] = traceToUpdate[field];
}
}
}
/**
* Push a new playlist trace metric
* @param endTime
* @param reason
* @ignore
*/
function pushPlayListTraceMetrics(endTime, reason) {
if (playListTraceMetricsClosed === false && playListMetrics && playListTraceMetrics && playListTraceMetrics.start) {
const startTime = playListTraceMetrics.start;
const duration = endTime.getTime() - startTime.getTime();
playListTraceMetrics.duration = duration;
playListTraceMetrics.stopreason = reason;
playListMetrics.trace.push(playListTraceMetrics);
playListTraceMetricsClosed = true;
}
}
/**
* @param {object} errors
* @memberof module:DashMetrics
* @instance
* @ignore
*/
function addDVBErrors(errors) {
metricsModel.addDVBErrors(errors);
}
instance = {
getCurrentRepresentationSwitch,
getCurrentBufferState,
getCurrentBufferLevel,
getCurrentHttpRequest,
getHttpRequests,
getCurrentDroppedFrames,
getCurrentSchedulingInfo,
getCurrentDVRInfo,
getCurrentManifestUpdate,
getLatestFragmentRequestHeaderValueByID,
getLatestMPDRequestHeaderValueByID,
addRepresentationSwitch,
addDVRInfo,
updateManifestUpdateInfo,
addManifestUpdateStreamInfo,
addManifestUpdateRepresentationInfo,
addManifestUpdate,
addHttpRequest,
addSchedulingInfo,
addRequestsQueue,
addBufferLevel,
addBufferState,
addDroppedFrames,
addPlayList,
addDVBErrors,
createPlaylistMetrics,
createPlaylistTraceMetrics,
updatePlayListTraceMetrics,
pushPlayListTraceMetrics,
clearAllCurrentMetrics
};
setup();
return instance;
}
DashMetrics.__dashjs_factory_name = 'DashMetrics';
export default FactoryMaker.getSingletonFactory(DashMetrics);
</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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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="MetricsReportingEven