clappr-stats - npm Package Compare versions

Comparing version 0.0.8 to 0.0.9

clappr-stats.min.js

@@ -1,1 +0,661 @@
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+(function webpackUniversalModuleDefinition(root, factory) {
+	if(typeof exports === 'object' && typeof module === 'object')
+		module.exports = factory(require("Clappr"));
+	else if(typeof define === 'function' && define.amd)
+		define(["Clappr"], factory);
+	else if(typeof exports === 'object')
+		exports["ClapprStats"] = factory(require("Clappr"));
+	else
+		root["ClapprStats"] = factory(root["Clappr"]);
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+/***/ function(module, exports, __webpack_require__) {
+
+	'use strict';Object.defineProperty(exports,'__esModule',{value:true});var _createClass=(function(){function defineProperties(target,props){for(var i=0;i < props.length;i++) {var descriptor=props[i];descriptor.enumerable = descriptor.enumerable || false;descriptor.configurable = true;if('value' in descriptor)descriptor.writable = true;Object.defineProperty(target,descriptor.key,descriptor);}}return function(Constructor,protoProps,staticProps){if(protoProps)defineProperties(Constructor.prototype,protoProps);if(staticProps)defineProperties(Constructor,staticProps);return Constructor;};})();var _get=function get(_x,_x2,_x3){var _again=true;_function: while(_again) {var object=_x,property=_x2,receiver=_x3;_again = false;if(object === null)object = Function.prototype;var desc=Object.getOwnPropertyDescriptor(object,property);if(desc === undefined){var parent=Object.getPrototypeOf(object);if(parent === null){return undefined;}else {_x = parent;_x2 = property;_x3 = receiver;_again = true;desc = parent = undefined;continue _function;}}else if('value' in desc){return desc.value;}else {var getter=desc.get;if(getter === undefined){return undefined;}return getter.call(receiver);}}};function _interopRequireDefault(obj){return obj && obj.__esModule?obj:{'default':obj};}function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError('Cannot call a class as a function');}}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;}var _clappr=__webpack_require__(1);var _lodashGet=__webpack_require__(2);var _lodashGet2=_interopRequireDefault(_lodashGet);var REPORT_EVENT='clappr:stats:report';var ClapprStats=(function(_ContainerPlugin){_inherits(ClapprStats,_ContainerPlugin);_createClass(ClapprStats,[{key:'_now',value:function _now(){var hasPerformanceSupport=window.performance && typeof window.performance.now === 'function';return hasPerformanceSupport?window.performance.now():new Date();}},{key:'_inc',value:function _inc(counter){this._metrics.counters[counter] += 1;}},{key:'_timerHasStarted',value:function _timerHasStarted(timer){return this['_start' + timer] !== undefined;}},{key:'_start',value:function _start(timer){this['_start' + timer] = this._now();}},{key:'_stop',value:function _stop(timer){this._metrics.timers[timer] += this._now() - this['_start' + timer];}},{key:'_defaultReport',value:function _defaultReport(metrics){console.log(metrics);} //eslint-disable-line no-console
+	},{key:'name',get:function get(){return 'clappr_stats';}},{key:'_playbackName',get:function get(){return this.container.playback.name;}},{key:'_playbackType',get:function get(){return this.container.getPlaybackType();}}]);function ClapprStats(container){_classCallCheck(this,ClapprStats);_get(Object.getPrototypeOf(ClapprStats.prototype),'constructor',this).call(this,container);this._runEach = (0,_lodashGet2['default'])(container,'options.clapprStats.runEach',5000);this._onReport = (0,_lodashGet2['default'])(container,'options.clapprStats.onReport',this._defaultReport);this._uriToMeasureLatency = (0,_lodashGet2['default'])(container,'options.clapprStats.uriToMeasureLatency');this._newMetrics();this.on(REPORT_EVENT,this._onReport);}_createClass(ClapprStats,[{key:'bindEvents',value:function bindEvents(){var _this=this;this.listenTo(this.container,_clappr.Events.CONTAINER_BITRATE,this.onBitrate);this.listenTo(this.container,_clappr.Events.CONTAINER_STOP,this.stopReporting);this.listenTo(this.container,_clappr.Events.CONTAINER_ENDED,this.stopReporting);this.listenToOnce(this.container.playback,_clappr.Events.PLAYBACK_PLAY_INTENT,this.startTimers);this.listenToOnce(this.container,_clappr.Events.CONTAINER_PLAY,this.onFirstPlaying);this.listenTo(this.container,_clappr.Events.CONTAINER_PLAY,this.onPlay);this.listenTo(this.container,_clappr.Events.CONTAINER_PAUSE,this.onPause);this.listenToOnce(this.container,_clappr.Events.CONTAINER_STATE_BUFFERING,this.onBuffering);this.listenTo(this.container,_clappr.Events.CONTAINER_SEEK,this.onSeek);this.listenTo(this.container,_clappr.Events.CONTAINER_ERROR,function(){return _this._inc('error');});this.listenTo(this.container,_clappr.Events.CONTAINER_FULLSCREEN,function(){return _this._inc('fullscreen');});this.listenTo(this.container,_clappr.Events.CONTAINER_PLAYBACKDVRSTATECHANGED,function(dvrInUse){dvrInUse && _this._inc('dvrUsage');});this.listenTo(this.container.playback,_clappr.Events.PLAYBACK_PROGRESS,this.onProgress);this.listenTo(this.container.playback,_clappr.Events.PLAYBACK_TIMEUPDATE,this.onTimeUpdate);}},{key:'onBitrate',value:function onBitrate(newBitrate){var bitrate=parseInt((0,_lodashGet2['default'])(newBitrate,'bitrate',0),10);var now=this._now();if(this._metrics.extra.bitratesHistory.length > 0){var beforeLast=this._metrics.extra.bitratesHistory[this._metrics.extra.bitratesHistory.length - 1];beforeLast.end = now;beforeLast.time = now - beforeLast.start;}this._metrics.extra.bitratesHistory.push({start:this._now(),bitrate:bitrate});this._inc('changeLevel');}},{key:'stopReporting',value:function stopReporting(){this._buildReport();clearInterval(this._intervalId);this._newMetrics();this.stopListening();this.bindEvents();}},{key:'startTimers',value:function startTimers(){this._intervalId = setInterval(this._buildReport.bind(this),this._runEach);this._start('session');this._start('startup');}},{key:'onFirstPlaying',value:function onFirstPlaying(){this.listenTo(this.container,_clappr.Events.CONTAINER_TIMEUPDATE,this.onContainerUpdateWhilePlaying);this._start('watch');this._stop('startup');}},{key:'playAfterPause',value:function playAfterPause(){this._stop('pause');this._start('watch');}},{key:'onPlay',value:function onPlay(){this._inc('play');}},{key:'onPause',value:function onPause(){this._stop('watch');this._start('pause');this._inc('pause');this.listenToOnce(this.container,_clappr.Events.CONTAINER_PLAY,this.playAfterPause);}},{key:'onSeek',value:function onSeek(e){this._inc('seek');this._metrics.extra.watchHistory.push([e * 1000,e * 1000]);}},{key:'onTimeUpdate',value:function onTimeUpdate(e){var current=e.current * 1000,total=e.total * 1000,l=this._metrics.extra.watchHistory.length;this._metrics.extra.duration = total;this._metrics.extra.currentTime = current;if(l === 0){this._metrics.extra.watchHistory.push([current,current]);}else {this._metrics.extra.watchHistory[l - 1][1] = current;}}},{key:'onContainerUpdateWhilePlaying',value:function onContainerUpdateWhilePlaying(){if(this.container.playback.isPlaying()){this._stop('watch');this._start('watch');}}},{key:'onBuffering',value:function onBuffering(){this._inc('buffering');this._start('buffering');this.listenToOnce(this.container,_clappr.Events.CONTAINER_STATE_BUFFERFULL,this.onBufferfull);}},{key:'onBufferfull',value:function onBufferfull(){this._stop('buffering');this.listenToOnce(this.container,_clappr.Events.CONTAINER_STATE_BUFFERING,this.onBuffering);}},{key:'onProgress',value:function onProgress(progress){this._metrics.extra.buffersize = progress.current * 1000;}},{key:'_newMetrics',value:function _newMetrics(){this._metrics = {counters:{play:0,pause:0,error:0,buffering:0,decodedFrames:0,droppedFrames:0,fps:0,changeLevel:0,seek:0,fullscreen:0,dvrUsage:0},timers:{startup:0,watch:0,pause:0,buffering:0,session:0,latency:0},extra:{playbackName:'',playbackType:'',bitratesHistory:[],bitrateWeightedMean:0,bitrateMostUsed:0,buffersize:0,watchHistory:[],watchedPercentage:0,bufferingPercentage:0}};}},{key:'_buildReport',value:function _buildReport(){this._stop('session');this._start('session');this._metrics.extra.playbackName = this._playbackName;this._metrics.extra.playbackType = this._playbackType;this._calculateBitrates();this._calculatePercentages();this._fetchFPS();this._measureLatency();this.trigger(REPORT_EVENT,JSON.parse(JSON.stringify(this._metrics)));}},{key:'_fetchFPS',value:function _fetchFPS(){ // flashls ??? - hls.droppedFramesl hls.stream.bufferLength (seconds)
+	// hls ??? (use the same?)
+	var fetchFPS={'html5_video':this._html5FetchFPS,'hls':this._html5FetchFPS,'dash_shaka_playback':this._html5FetchFPS};fetchFPS[this._playbackName] && fetchFPS[this._playbackName].call(this);}},{key:'_calculateBitrates',value:function _calculateBitrates(){var _this2=this;var bitratesWatchedTime=0;this._metrics.extra.bitrateWeightedMean = this._metrics.extra.bitratesHistory.map(function(x){bitratesWatchedTime += x.time || 0;var bitrateTime=x.time || _this2._metrics.timers.watch - bitratesWatchedTime;return x.bitrate * bitrateTime;}).reduce(function(a,b){return a + b;},0) / this._metrics.timers.watch;this._metrics.extra.bitrateMostUsed = this._metrics.extra.bitratesHistory.sort(function(a,b){return a.time < b.time;})[0];}},{key:'_calculatePercentages',value:function _calculatePercentages(){if(this._metrics.extra.duration > 0){this._metrics.extra.watchedPercentage = this._metrics.timers.watch / this._metrics.extra.duration * 100;this._metrics.extra.bufferingPercentage = this._metrics.timers.buffering / this._metrics.extra.duration * 100;}}},{key:'_html5FetchFPS',value:function _html5FetchFPS(){var videoTag=this.container.playback.el;var decodedFrames=videoTag.webkitDecodedFrameCount || videoTag.mozDecodedFrames || 0;var droppedFrames=videoTag.webkitDroppedFrameCount || videoTag.mozParsedFrames - videoTag.mozDecodedFrames || 0;var decodedFramesLastTime=decodedFrames - (this._lastDecodedFramesCount || 0);this._metrics.counters.decodedFrames = decodedFrames;this._metrics.counters.droppedFrames = droppedFrames;this._metrics.counters.fps = decodedFramesLastTime / (this._runEach / 1000);this._lastDecodedFramesCount = decodedFrames;} // originally from https://www.smashingmagazine.com/2011/11/analyzing-network-characteristics-using-javascript-and-the-dom-part-1/
+	},{key:'_measureLatency',value:function _measureLatency(){var _this3=this;if(this._uriToMeasureLatency){var t=[],n=2,rtt;var ld=function ld(){t.push(_this3._now());if(t.length > n)done();else {var img=new Image();img.onload = ld;img.src = _this3._uriToMeasureLatency + '?' + Math.random() + '=' + _this3._now();}};var done=function done(){rtt = t[2] - t[1];_this3._metrics.timers.latency = rtt;};ld();}}}]);return ClapprStats;})(_clappr.ContainerPlugin);exports['default'] = ClapprStats;module.exports = exports['default'];
+
+/***/ },
+/* 1 */
+/***/ function(module, exports) {
+
+	module.exports = __WEBPACK_EXTERNAL_MODULE_1__;
+
+/***/ },
+/* 2 */
+/***/ function(module, exports, __webpack_require__) {
+
+	/**
+	 * lodash (Custom Build) <https://lodash.com/>
+	 * Build: `lodash modularize exports="npm" -o ./`
+	 * Copyright jQuery Foundation and other contributors <https://jquery.org/>
+	 * Released under MIT license <https://lodash.com/license>
+	 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
+	 * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+	 */'use strict';var stringToPath=__webpack_require__(3); /** Used as references for various `Number` constants. */var INFINITY=1 / 0; /** `Object#toString` result references. */var symbolTag='[object Symbol]'; /** Used to match property names within property paths. */var reIsDeepProp=/\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,reIsPlainProp=/^\w*$/; /** Used for built-in method references. */var objectProto=Object.prototype; /**
+	 * Used to resolve the
+	 * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+	 * of values.
+	 */var objectToString=objectProto.toString; /**
+	 * The base implementation of `_.get` without support for default values.
+	 *
+	 * @private
+	 * @param {Object} object The object to query.
+	 * @param {Array|string} path The path of the property to get.
+	 * @returns {*} Returns the resolved value.
+	 */function baseGet(object,path){path = isKey(path,object)?[path]:castPath(path);var index=0,length=path.length;while(object != null && index < length) {object = object[toKey(path[index++])];}return index && index == length?object:undefined;} /**
+	 * Casts `value` to a path array if it's not one.
+	 *
+	 * @private
+	 * @param {*} value The value to inspect.
+	 * @returns {Array} Returns the cast property path array.
+	 */function castPath(value){return isArray(value)?value:stringToPath(value);} /**
+	 * Checks if `value` is a property name and not a property path.
+	 *
+	 * @private
+	 * @param {*} value The value to check.
+	 * @param {Object} [object] The object to query keys on.
+	 * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
+	 */function isKey(value,object){if(isArray(value)){return false;}var type=typeof value;if(type == 'number' || type == 'symbol' || type == 'boolean' || value == null || isSymbol(value)){return true;}return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || object != null && value in Object(object);} /**
+	 * Converts `value` to a string key if it's not a string or symbol.
+	 *
+	 * @private
+	 * @param {*} value The value to inspect.
+	 * @returns {string|symbol} Returns the key.
+	 */function toKey(value){if(typeof value == 'string' || isSymbol(value)){return value;}var result=value + '';return result == '0' && 1 / value == -INFINITY?'-0':result;} /**
+	 * Checks if `value` is classified as an `Array` object.
+	 *
+	 * @static
+	 * @memberOf _
+	 * @since 0.1.0
+	 * @type {Function}
+	 * @category Lang
+	 * @param {*} value The value to check.
+	 * @returns {boolean} Returns `true` if `value` is correctly classified,
+	 *  else `false`.
+	 * @example
+	 *
+	 * _.isArray([1, 2, 3]);
+	 * // => true
+	 *
+	 * _.isArray(document.body.children);
+	 * // => false
+	 *
+	 * _.isArray('abc');
+	 * // => false
+	 *
+	 * _.isArray(_.noop);
+	 * // => false
+	 */var isArray=Array.isArray; /**
+	 * Checks if `value` is object-like. A value is object-like if it's not `null`
+	 * and has a `typeof` result of "object".
+	 *
+	 * @static
+	 * @memberOf _
+	 * @since 4.0.0
+	 * @category Lang
+	 * @param {*} value The value to check.
+	 * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
+	 * @example
+	 *
+	 * _.isObjectLike({});
+	 * // => true
+	 *
+	 * _.isObjectLike([1, 2, 3]);
+	 * // => true
+	 *
+	 * _.isObjectLike(_.noop);
+	 * // => false
+	 *
+	 * _.isObjectLike(null);
+	 * // => false
+	 */function isObjectLike(value){return !!value && typeof value == 'object';} /**
+	 * Checks if `value` is classified as a `Symbol` primitive or object.
+	 *
+	 * @static
+	 * @memberOf _
+	 * @since 4.0.0
+	 * @category Lang
+	 * @param {*} value The value to check.
+	 * @returns {boolean} Returns `true` if `value` is correctly classified,
+	 *  else `false`.
+	 * @example
+	 *
+	 * _.isSymbol(Symbol.iterator);
+	 * // => true
+	 *
+	 * _.isSymbol('abc');
+	 * // => false
+	 */function isSymbol(value){return typeof value == 'symbol' || isObjectLike(value) && objectToString.call(value) == symbolTag;} /**
+	 * Gets the value at `path` of `object`. If the resolved value is
+	 * `undefined`, the `defaultValue` is used in its place.
+	 *
+	 * @static
+	 * @memberOf _
+	 * @since 3.7.0
+	 * @category Object
+	 * @param {Object} object The object to query.
+	 * @param {Array|string} path The path of the property to get.
+	 * @param {*} [defaultValue] The value returned for `undefined` resolved values.
+	 * @returns {*} Returns the resolved value.
+	 * @example
+	 *
+	 * var object = { 'a': [{ 'b': { 'c': 3 } }] };
+	 *
+	 * _.get(object, 'a[0].b.c');
+	 * // => 3
+	 *
+	 * _.get(object, ['a', '0', 'b', 'c']);
+	 * // => 3
+	 *
+	 * _.get(object, 'a.b.c', 'default');
+	 * // => 'default'
+	 */function get(object,path,defaultValue){var result=object == null?undefined:baseGet(object,path);return result === undefined?defaultValue:result;}module.exports = get;
+
+/***/ },
+/* 3 */
+/***/ function(module, exports, __webpack_require__) {
+
+	/* WEBPACK VAR INJECTION */(function(module, global) {/**
+	 * lodash (Custom Build) <https://lodash.com/>
+	 * Build: `lodash modularize exports="npm" -o ./`
+	 * Copyright jQuery Foundation and other contributors <https://jquery.org/>
+	 * Released under MIT license <https://lodash.com/license>
+	 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
+	 * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+	 */'use strict';var baseToString=__webpack_require__(5); /** Used as the `TypeError` message for "Functions" methods. */var FUNC_ERROR_TEXT='Expected a function'; /** Used to stand-in for `undefined` hash values. */var HASH_UNDEFINED='__lodash_hash_undefined__'; /** `Object#toString` result references. */var funcTag='[object Function]',genTag='[object GeneratorFunction]'; /** Used to match property names within property paths. */var rePropName=/[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]/g; /**
+	 * Used to match `RegExp`
+	 * [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns).
+	 */var reRegExpChar=/[\\^$.*+?()[\]{}|]/g; /** Used to match backslashes in property paths. */var reEscapeChar=/\\(\\)?/g; /** Used to detect host constructors (Safari). */var reIsHostCtor=/^\[object .+?Constructor\]$/; /** Used to determine if values are of the language type `Object`. */var objectTypes={'function':true,'object':true}; /** Detect free variable `exports`. */var freeExports=objectTypes[typeof exports] && exports && !exports.nodeType?exports:undefined; /** Detect free variable `module`. */var freeModule=objectTypes[typeof module] && module && !module.nodeType?module:undefined; /** Detect free variable `global` from Node.js. */var freeGlobal=checkGlobal(freeExports && freeModule && typeof global == 'object' && global); /** Detect free variable `self`. */var freeSelf=checkGlobal(objectTypes[typeof self] && self); /** Detect free variable `window`. */var freeWindow=checkGlobal(objectTypes[typeof window] && window); /** Detect `this` as the global object. */var thisGlobal=checkGlobal(objectTypes[typeof undefined] && undefined); /**
+	 * Used as a reference to the global object.
+	 *
+	 * The `this` value is used if it's the global object to avoid Greasemonkey's
+	 * restricted `window` object, otherwise the `window` object is used.
+	 */var root=freeGlobal || freeWindow !== (thisGlobal && thisGlobal.window) && freeWindow || freeSelf || thisGlobal || Function('return this')(); /**
+	 * Checks if `value` is a global object.
+	 *
+	 * @private
+	 * @param {*} value The value to check.
+	 * @returns {null|Object} Returns `value` if it's a global object, else `null`.
+	 */function checkGlobal(value){return value && value.Object === Object?value:null;} /**
+	 * Checks if `value` is a host object in IE < 9.
+	 *
+	 * @private
+	 * @param {*} value The value to check.
+	 * @returns {boolean} Returns `true` if `value` is a host object, else `false`.
+	 */function isHostObject(value){ // Many host objects are `Object` objects that can coerce to strings
+	// despite having improperly defined `toString` methods.
+	var result=false;if(value != null && typeof value.toString != 'function'){try{result = !!(value + '');}catch(e) {}}return result;} /** Used for built-in method references. */var arrayProto=Array.prototype,objectProto=Object.prototype; /** Used to resolve the decompiled source of functions. */var funcToString=Function.prototype.toString; /** Used to check objects for own properties. */var hasOwnProperty=objectProto.hasOwnProperty; /**
+	 * Used to resolve the
+	 * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+	 * of values.
+	 */var objectToString=objectProto.toString; /** Used to detect if a method is native. */var reIsNative=RegExp('^' + funcToString.call(hasOwnProperty).replace(reRegExpChar,'\\$&').replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g,'$1.*?') + '$'); /** Built-in value references. */var splice=arrayProto.splice; /* Built-in method references that are verified to be native. */var Map=getNative(root,'Map'),nativeCreate=getNative(Object,'create'); /**
+	 * Creates a hash object.
+	 *
+	 * @private
+	 * @constructor
+	 * @param {Array} [entries] The key-value pairs to cache.
+	 */function Hash(entries){var index=-1,length=entries?entries.length:0;this.clear();while(++index < length) {var entry=entries[index];this.set(entry[0],entry[1]);}} /**
+	 * Removes all key-value entries from the hash.
+	 *
+	 * @private
+	 * @name clear
+	 * @memberOf Hash
+	 */function hashClear(){this.__data__ = nativeCreate?nativeCreate(null):{};} /**
+	 * Removes `key` and its value from the hash.
+	 *
+	 * @private
+	 * @name delete
+	 * @memberOf Hash
+	 * @param {Object} hash The hash to modify.
+	 * @param {string} key The key of the value to remove.
+	 * @returns {boolean} Returns `true` if the entry was removed, else `false`.
+	 */function hashDelete(key){return this.has(key) && delete this.__data__[key];} /**
+	 * Gets the hash value for `key`.
+	 *
+	 * @private
+	 * @name get
+	 * @memberOf Hash
+	 * @param {string} key The key of the value to get.
+	 * @returns {*} Returns the entry value.
+	 */function hashGet(key){var data=this.__data__;if(nativeCreate){var result=data[key];return result === HASH_UNDEFINED?undefined:result;}return hasOwnProperty.call(data,key)?data[key]:undefined;} /**
+	 * Checks if a hash value for `key` exists.
+	 *
+	 * @private
+	 * @name has
+	 * @memberOf Hash
+	 * @param {string} key The key of the entry to check.
+	 * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
+	 */function hashHas(key){var data=this.__data__;return nativeCreate?data[key] !== undefined:hasOwnProperty.call(data,key);} /**
+	 * Sets the hash `key` to `value`.
+	 *
+	 * @private
+	 * @name set
+	 * @memberOf Hash
+	 * @param {string} key The key of the value to set.
+	 * @param {*} value The value to set.
+	 * @returns {Object} Returns the hash instance.
+	 */function hashSet(key,value){var data=this.__data__;data[key] = nativeCreate && value === undefined?HASH_UNDEFINED:value;return this;} // Add methods to `Hash`.
+	Hash.prototype.clear = hashClear;Hash.prototype['delete'] = hashDelete;Hash.prototype.get = hashGet;Hash.prototype.has = hashHas;Hash.prototype.set = hashSet; /**
+	 * Creates an list cache object.
+	 *
+	 * @private
+	 * @constructor
+	 * @param {Array} [entries] The key-value pairs to cache.
+	 */function ListCache(entries){var index=-1,length=entries?entries.length:0;this.clear();while(++index < length) {var entry=entries[index];this.set(entry[0],entry[1]);}} /**
+	 * Removes all key-value entries from the list cache.
+	 *
+	 * @private
+	 * @name clear
+	 * @memberOf ListCache
+	 */function listCacheClear(){this.__data__ = [];} /**
+	 * Removes `key` and its value from the list cache.
+	 *
+	 * @private
+	 * @name delete
+	 * @memberOf ListCache
+	 * @param {string} key The key of the value to remove.
+	 * @returns {boolean} Returns `true` if the entry was removed, else `false`.
+	 */function listCacheDelete(key){var data=this.__data__,index=assocIndexOf(data,key);if(index < 0){return false;}var lastIndex=data.length - 1;if(index == lastIndex){data.pop();}else {splice.call(data,index,1);}return true;} /**
+	 * Gets the list cache value for `key`.
+	 *
+	 * @private
+	 * @name get
+	 * @memberOf ListCache
+	 * @param {string} key The key of the value to get.
+	 * @returns {*} Returns the entry value.
+	 */function listCacheGet(key){var data=this.__data__,index=assocIndexOf(data,key);return index < 0?undefined:data[index][1];} /**
+	 * Checks if a list cache value for `key` exists.
+	 *
+	 * @private
+	 * @name has
+	 * @memberOf ListCache
+	 * @param {string} key The key of the entry to check.
+	 * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
+	 */function listCacheHas(key){return assocIndexOf(this.__data__,key) > -1;} /**
+	 * Sets the list cache `key` to `value`.
+	 *
+	 * @private
+	 * @name set
+	 * @memberOf ListCache
+	 * @param {string} key The key of the value to set.
+	 * @param {*} value The value to set.
+	 * @returns {Object} Returns the list cache instance.
+	 */function listCacheSet(key,value){var data=this.__data__,index=assocIndexOf(data,key);if(index < 0){data.push([key,value]);}else {data[index][1] = value;}return this;} // Add methods to `ListCache`.
+	ListCache.prototype.clear = listCacheClear;ListCache.prototype['delete'] = listCacheDelete;ListCache.prototype.get = listCacheGet;ListCache.prototype.has = listCacheHas;ListCache.prototype.set = listCacheSet; /**
+	 * Creates a map cache object to store key-value pairs.
+	 *
+	 * @private
+	 * @constructor
+	 * @param {Array} [entries] The key-value pairs to cache.
+	 */function MapCache(entries){var index=-1,length=entries?entries.length:0;this.clear();while(++index < length) {var entry=entries[index];this.set(entry[0],entry[1]);}} /**
+	 * Removes all key-value entries from the map.
+	 *
+	 * @private
+	 * @name clear
+	 * @memberOf MapCache
+	 */function mapCacheClear(){this.__data__ = {'hash':new Hash(),'map':new (Map || ListCache)(),'string':new Hash()};} /**
+	 * Removes `key` and its value from the map.
+	 *
+	 * @private
+	 * @name delete
+	 * @memberOf MapCache
+	 * @param {string} key The key of the value to remove.
+	 * @returns {boolean} Returns `true` if the entry was removed, else `false`.
+	 */function mapCacheDelete(key){return getMapData(this,key)['delete'](key);} /**
+	 * Gets the map value for `key`.
+	 *
+	 * @private
+	 * @name get
+	 * @memberOf MapCache
+	 * @param {string} key The key of the value to get.
+	 * @returns {*} Returns the entry value.
+	 */function mapCacheGet(key){return getMapData(this,key).get(key);} /**
+	 * Checks if a map value for `key` exists.
+	 *
+	 * @private
+	 * @name has
+	 * @memberOf MapCache
+	 * @param {string} key The key of the entry to check.
+	 * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
+	 */function mapCacheHas(key){return getMapData(this,key).has(key);} /**
+	 * Sets the map `key` to `value`.
+	 *
+	 * @private
+	 * @name set
+	 * @memberOf MapCache
+	 * @param {string} key The key of the value to set.
+	 * @param {*} value The value to set.
+	 * @returns {Object} Returns the map cache instance.
+	 */function mapCacheSet(key,value){getMapData(this,key).set(key,value);return this;} // Add methods to `MapCache`.
+	MapCache.prototype.clear = mapCacheClear;MapCache.prototype['delete'] = mapCacheDelete;MapCache.prototype.get = mapCacheGet;MapCache.prototype.has = mapCacheHas;MapCache.prototype.set = mapCacheSet; /**
+	 * Gets the index at which the `key` is found in `array` of key-value pairs.
+	 *
+	 * @private
+	 * @param {Array} array The array to search.
+	 * @param {*} key The key to search for.
+	 * @returns {number} Returns the index of the matched value, else `-1`.
+	 */function assocIndexOf(array,key){var length=array.length;while(length--) {if(eq(array[length][0],key)){return length;}}return -1;} /**
+	 * Gets the data for `map`.
+	 *
+	 * @private
+	 * @param {Object} map The map to query.
+	 * @param {string} key The reference key.
+	 * @returns {*} Returns the map data.
+	 */function getMapData(map,key){var data=map.__data__;return isKeyable(key)?data[typeof key == 'string'?'string':'hash']:data.map;} /**
+	 * Gets the native function at `key` of `object`.
+	 *
+	 * @private
+	 * @param {Object} object The object to query.
+	 * @param {string} key The key of the method to get.
+	 * @returns {*} Returns the function if it's native, else `undefined`.
+	 */function getNative(object,key){var value=object[key];return isNative(value)?value:undefined;} /**
+	 * Checks if `value` is suitable for use as unique object key.
+	 *
+	 * @private
+	 * @param {*} value The value to check.
+	 * @returns {boolean} Returns `true` if `value` is suitable, else `false`.
+	 */function isKeyable(value){var type=typeof value;return type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean'?value !== '__proto__':value === null;} /**
+	 * Converts `string` to a property path array.
+	 *
+	 * @private
+	 * @param {string} string The string to convert.
+	 * @returns {Array} Returns the property path array.
+	 */var stringToPath=memoize(function(string){var result=[];toString(string).replace(rePropName,function(match,number,quote,string){result.push(quote?string.replace(reEscapeChar,'$1'):number || match);});return result;}); /**
+	 * Converts `func` to its source code.
+	 *
+	 * @private
+	 * @param {Function} func The function to process.
+	 * @returns {string} Returns the source code.
+	 */function toSource(func){if(func != null){try{return funcToString.call(func);}catch(e) {}try{return func + '';}catch(e) {}}return '';} /**
+	 * Creates a function that memoizes the result of `func`. If `resolver` is
+	 * provided, it determines the cache key for storing the result based on the
+	 * arguments provided to the memoized function. By default, the first argument
+	 * provided to the memoized function is used as the map cache key. The `func`
+	 * is invoked with the `this` binding of the memoized function.
+	 *
+	 * **Note:** The cache is exposed as the `cache` property on the memoized
+	 * function. Its creation may be customized by replacing the `_.memoize.Cache`
+	 * constructor with one whose instances implement the
+	 * [`Map`](http://ecma-international.org/ecma-262/6.0/#sec-properties-of-the-map-prototype-object)
+	 * method interface of `delete`, `get`, `has`, and `set`.
+	 *
+	 * @static
+	 * @memberOf _
+	 * @since 0.1.0
+	 * @category Function
+	 * @param {Function} func The function to have its output memoized.
+	 * @param {Function} [resolver] The function to resolve the cache key.
+	 * @returns {Function} Returns the new memoized function.
+	 * @example
+	 *
+	 * var object = { 'a': 1, 'b': 2 };
+	 * var other = { 'c': 3, 'd': 4 };
+	 *
+	 * var values = _.memoize(_.values);
+	 * values(object);
+	 * // => [1, 2]
+	 *
+	 * values(other);
+	 * // => [3, 4]
+	 *
+	 * object.a = 2;
+	 * values(object);
+	 * // => [1, 2]
+	 *
+	 * // Modify the result cache.
+	 * values.cache.set(object, ['a', 'b']);
+	 * values(object);
+	 * // => ['a', 'b']
+	 *
+	 * // Replace `_.memoize.Cache`.
+	 * _.memoize.Cache = WeakMap;
+	 */function memoize(func,resolver){if(typeof func != 'function' || resolver && typeof resolver != 'function'){throw new TypeError(FUNC_ERROR_TEXT);}var memoized=function memoized(){var args=arguments,key=resolver?resolver.apply(this,args):args[0],cache=memoized.cache;if(cache.has(key)){return cache.get(key);}var result=func.apply(this,args);memoized.cache = cache.set(key,result);return result;};memoized.cache = new (memoize.Cache || MapCache)();return memoized;} // Assign cache to `_.memoize`.
+	memoize.Cache = MapCache; /**
+	 * Performs a
+	 * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+	 * comparison between two values to determine if they are equivalent.
+	 *
+	 * @static
+	 * @memberOf _
+	 * @since 4.0.0
+	 * @category Lang
+	 * @param {*} value The value to compare.
+	 * @param {*} other The other value to compare.
+	 * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
+	 * @example
+	 *
+	 * var object = { 'user': 'fred' };
+	 * var other = { 'user': 'fred' };
+	 *
+	 * _.eq(object, object);
+	 * // => true
+	 *
+	 * _.eq(object, other);
+	 * // => false
+	 *
+	 * _.eq('a', 'a');
+	 * // => true
+	 *
+	 * _.eq('a', Object('a'));
+	 * // => false
+	 *
+	 * _.eq(NaN, NaN);
+	 * // => true
+	 */function eq(value,other){return value === other || value !== value && other !== other;} /**
+	 * Checks if `value` is classified as a `Function` object.
+	 *
+	 * @static
+	 * @memberOf _
+	 * @since 0.1.0
+	 * @category Lang
+	 * @param {*} value The value to check.
+	 * @returns {boolean} Returns `true` if `value` is correctly classified,
+	 *  else `false`.
+	 * @example
+	 *
+	 * _.isFunction(_);
+	 * // => true
+	 *
+	 * _.isFunction(/abc/);
+	 * // => false
+	 */function isFunction(value){ // The use of `Object#toString` avoids issues with the `typeof` operator
+	// in Safari 8 which returns 'object' for typed array and weak map constructors,
+	// and PhantomJS 1.9 which returns 'function' for `NodeList` instances.
+	var tag=isObject(value)?objectToString.call(value):'';return tag == funcTag || tag == genTag;} /**
+	 * Checks if `value` is the
+	 * [language type](http://www.ecma-international.org/ecma-262/6.0/#sec-ecmascript-language-types)
+	 * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+	 *
+	 * @static
+	 * @memberOf _
+	 * @since 0.1.0
+	 * @category Lang
+	 * @param {*} value The value to check.
+	 * @returns {boolean} Returns `true` if `value` is an object, else `false`.
+	 * @example
+	 *
+	 * _.isObject({});
+	 * // => true
+	 *
+	 * _.isObject([1, 2, 3]);
+	 * // => true
+	 *
+	 * _.isObject(_.noop);
+	 * // => true
+	 *
+	 * _.isObject(null);
+	 * // => false
+	 */function isObject(value){var type=typeof value;return !!value && (type == 'object' || type == 'function');} /**
+	 * Checks if `value` is a native function.
+	 *
+	 * @static
+	 * @memberOf _
+	 * @since 3.0.0
+	 * @category Lang
+	 * @param {*} value The value to check.
+	 * @returns {boolean} Returns `true` if `value` is a native function,
+	 *  else `false`.
+	 * @example
+	 *
+	 * _.isNative(Array.prototype.push);
+	 * // => true
+	 *
+	 * _.isNative(_);
+	 * // => false
+	 */function isNative(value){if(!isObject(value)){return false;}var pattern=isFunction(value) || isHostObject(value)?reIsNative:reIsHostCtor;return pattern.test(toSource(value));} /**
+	 * Converts `value` to a string. An empty string is returned for `null`
+	 * and `undefined` values. The sign of `-0` is preserved.
+	 *
+	 * @static
+	 * @memberOf _
+	 * @since 4.0.0
+	 * @category Lang
+	 * @param {*} value The value to process.
+	 * @returns {string} Returns the string.
+	 * @example
+	 *
+	 * _.toString(null);
+	 * // => ''
+	 *
+	 * _.toString(-0);
+	 * // => '-0'
+	 *
+	 * _.toString([1, 2, 3]);
+	 * // => '1,2,3'
+	 */function toString(value){return value == null?'':baseToString(value);}module.exports = stringToPath;
+	/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(4)(module), (function() { return this; }())))
+
+/***/ },
+/* 4 */
+/***/ function(module, exports) {
+
+	"use strict";module.exports = function(module){if(!module.webpackPolyfill){module.deprecate = function(){};module.paths = []; // module.parent = undefined by default
+	module.children = [];module.webpackPolyfill = 1;}return module;};
+
+/***/ },
+/* 5 */
+/***/ function(module, exports, __webpack_require__) {
+
+	/* WEBPACK VAR INJECTION */(function(module, global) {/**
+	 * lodash (Custom Build) <https://lodash.com/>
+	 * Build: `lodash modularize exports="npm" -o ./`
+	 * Copyright jQuery Foundation and other contributors <https://jquery.org/>
+	 * Released under MIT license <https://lodash.com/license>
+	 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
+	 * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+	 */ /** Used as references for various `Number` constants. */'use strict';var INFINITY=1 / 0; /** `Object#toString` result references. */var symbolTag='[object Symbol]'; /** Used to determine if values are of the language type `Object`. */var objectTypes={'function':true,'object':true}; /** Detect free variable `exports`. */var freeExports=objectTypes[typeof exports] && exports && !exports.nodeType?exports:undefined; /** Detect free variable `module`. */var freeModule=objectTypes[typeof module] && module && !module.nodeType?module:undefined; /** Detect free variable `global` from Node.js. */var freeGlobal=checkGlobal(freeExports && freeModule && typeof global == 'object' && global); /** Detect free variable `self`. */var freeSelf=checkGlobal(objectTypes[typeof self] && self); /** Detect free variable `window`. */var freeWindow=checkGlobal(objectTypes[typeof window] && window); /** Detect `this` as the global object. */var thisGlobal=checkGlobal(objectTypes[typeof undefined] && undefined); /**
+	 * Used as a reference to the global object.
+	 *
+	 * The `this` value is used if it's the global object to avoid Greasemonkey's
+	 * restricted `window` object, otherwise the `window` object is used.
+	 */var root=freeGlobal || freeWindow !== (thisGlobal && thisGlobal.window) && freeWindow || freeSelf || thisGlobal || Function('return this')(); /**
+	 * Checks if `value` is a global object.
+	 *
+	 * @private
+	 * @param {*} value The value to check.
+	 * @returns {null|Object} Returns `value` if it's a global object, else `null`.
+	 */function checkGlobal(value){return value && value.Object === Object?value:null;} /** Used for built-in method references. */var objectProto=Object.prototype; /**
+	 * Used to resolve the
+	 * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+	 * of values.
+	 */var objectToString=objectProto.toString; /** Built-in value references. */var Symbol=root.Symbol; /** Used to convert symbols to primitives and strings. */var symbolProto=Symbol?Symbol.prototype:undefined,symbolToString=symbolProto?symbolProto.toString:undefined; /**
+	 * The base implementation of `_.toString` which doesn't convert nullish
+	 * values to empty strings.
+	 *
+	 * @private
+	 * @param {*} value The value to process.
+	 * @returns {string} Returns the string.
+	 */function baseToString(value){ // Exit early for strings to avoid a performance hit in some environments.
+	if(typeof value == 'string'){return value;}if(isSymbol(value)){return symbolToString?symbolToString.call(value):'';}var result=value + '';return result == '0' && 1 / value == -INFINITY?'-0':result;} /**
+	 * Checks if `value` is object-like. A value is object-like if it's not `null`
+	 * and has a `typeof` result of "object".
+	 *
+	 * @static
+	 * @memberOf _
+	 * @since 4.0.0
+	 * @category Lang
+	 * @param {*} value The value to check.
+	 * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
+	 * @example
+	 *
+	 * _.isObjectLike({});
+	 * // => true
+	 *
+	 * _.isObjectLike([1, 2, 3]);
+	 * // => true
+	 *
+	 * _.isObjectLike(_.noop);
+	 * // => false
+	 *
+	 * _.isObjectLike(null);
+	 * // => false
+	 */function isObjectLike(value){return !!value && typeof value == 'object';} /**
+	 * Checks if `value` is classified as a `Symbol` primitive or object.
+	 *
+	 * @static
+	 * @memberOf _
+	 * @since 4.0.0
+	 * @category Lang
+	 * @param {*} value The value to check.
+	 * @returns {boolean} Returns `true` if `value` is correctly classified,
+	 *  else `false`.
+	 * @example
+	 *
+	 * _.isSymbol(Symbol.iterator);
+	 * // => true
+	 *
+	 * _.isSymbol('abc');
+	 * // => false
+	 */function isSymbol(value){return typeof value == 'symbol' || isObjectLike(value) && objectToString.call(value) == symbolTag;}module.exports = baseToString;
+	/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(4)(module), (function() { return this; }())))
+
+/***/ }
+/******/ ])
+});
+;

index.js

@@ -70,3 +70,3 @@ import {ContainerPlugin, Events} from 'clappr'
     this.stopListening()
-    this.bindEvents() 
+    this.bindEvents()
   }
@@ -155,5 +155,5 @@
       extra: {
-        playbackName: '', playbackType: '', bitratesHistory: [], bitrateMean: 0,
-        bitrateVariance: 0, bitrateStandardDeviation: 0, bitrateMostUsed: 0,
-        buffersize: 0, watchHistory: [], watchedPercentage: 0, bufferingPercentage: 0 
+        playbackName: '', playbackType: '', bitratesHistory: [], bitrateWeightedMean: 0,
+        bitrateMostUsed: 0, buffersize: 0, watchHistory: [], watchedPercentage: 0,
+        bufferingPercentage: 0
       }
@@ -169,3 +169,3 @@ }
     this._metrics.extra.playbackType = this._playbackType
-    
+
     this._calculateBitrates()
@@ -192,11 +192,9 @@ this._calculatePercentages()
   _calculateBitrates() {
-    var bitrates = this._metrics.extra.bitratesHistory.map((x) => x.bitrate)
+    var bitratesWatchedTime = 0
+    this._metrics.extra.bitrateWeightedMean = this._metrics.extra.bitratesHistory.map((x) => {
+      bitratesWatchedTime += x.time || 0
+      var bitrateTime = x.time || (this._metrics.timers.watch - bitratesWatchedTime)
+      return x.bitrate * bitrateTime
+    }).reduce((a,b) => a + b, 0) / this._metrics.timers.watch
 
-    this._metrics.extra.bitrateMean = bitrates.reduce((a,b) => a + b, 0) / bitrates.length
-
-    this._metrics.extra.bitrateVariance = bitrates.map((n) => {
-      return Math.pow(n - this._metrics.extra.bitrateMean, 2)
-    }).reduce((a,b) => a + b, 0) / bitrates.length
-
-    this._metrics.extra.bitrateStandardDeviation = Math.sqrt(this._metrics.extra.bitrateVariance)
     this._metrics.extra.bitrateMostUsed = this._metrics.extra.bitratesHistory.sort((a,b) => a.time < b.time)[0]
@@ -203,0 +201,0 @@ }

package.json

 {
   "name": "clappr-stats",
-  "version": "0.0.8",
+  "version": "0.0.9",
   "description": "clappr playback stats report plugin",
@@ -5,0 +5,0 @@ "main": "index.js",

README.md

@@ -58,5 +58,3 @@ [![npm version](https://badge.fury.io/js/clappr-stats.svg)](https://badge.fury.io/js/clappr-stats)
     bitratesHistory: [], // the bitrates changes history
-    bitrateMean: 0, // bitrate mean (kbps)
-    bitrateVariance: 0, // bitrate variance (kbps)
-    bitrateStandardDeviation: 0, // bitrate standard deviation (kbps)
+    bitrateWeightedMean: 0, // bitrate weighted mean (kbps)
     bitrateMostUsed: 0, // most used (based on time) bitrate  (kbps)
@@ -63,0 +61,0 @@ watchHistory: [], // an array of an array of watched range time ex: [0, 2200]

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