bigbluebutton-Github/bigbluebutton-client/resources/prod/lib/kurento-utils.min.js

(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.kurentoUtils = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
function noop(e){e&&logger.error(e)}function trackStop(e){e.stop&&e.stop()}function streamStop(e){e.getTracks().forEach(trackStop)}function bufferizeCandidates(e,n){var t=[];return e.addEventListener("signalingstatechange",function(){if("stable"===this.signalingState)for(;t.length;){var e=t.shift();this.addIceCandidate(e.candidate,e.callback,e.callback)}}),function(r,i){switch(i=i||n,e.signalingState){case"closed":i(new Error("PeerConnection object is closed"));break;case"stable":if(e.remoteDescription){e.addIceCandidate(r,i,i);break}default:t.push({candidate:r,callback:i})}}}function removeFIDFromOffer(e){var n=e.indexOf("a=ssrc-group:FID");return n>0?e.slice(0,n):e}function getSimulcastInfo(e){var n=e.getVideoTracks();if(!n.length)return logger.warn("No video tracks available in the video stream"),"";var t=["a=x-google-flag:conference","a=ssrc-group:SIM 1 2 3","a=ssrc:1 cname:localVideo","a=ssrc:1 msid:"+e.id+" "+n[0].id,"a=ssrc:1 mslabel:"+e.id,"a=ssrc:1 label:"+n[0].id,"a=ssrc:2 cname:localVideo","a=ssrc:2 msid:"+e.id+" "+n[0].id,"a=ssrc:2 mslabel:"+e.id,"a=ssrc:2 label:"+n[0].id,"a=ssrc:3 cname:localVideo","a=ssrc:3 msid:"+e.id+" "+n[0].id,"a=ssrc:3 mslabel:"+e.id,"a=ssrc:3 label:"+n[0].id];return t.push(""),t.join("\n")}function WebRtcPeer(e,n,t){function r(){if(l){var e=p.getRemoteStreams()[0],n=e?URL.createObjectURL(e):"";l.pause(),l.src=n,l.load(),logger.info("Remote URL:",n)}}function i(e){return w&&("Chrome"===browser.name||"Chromium"===browser.name?(logger.info("Adding multicast info"),e=new RTCSessionDescription({type:e.type,sdp:removeFIDFromOffer(e.sdp)+getSimulcastInfo(u)})):logger.warn("Simulcast is only available in Chrome browser.")),e}function o(){"closed"===p.signalingState&&t('The peer connection object is in "closed" state. This is most likely due to an invocation of the dispose method before accepting in the dialogue'),u&&d&&c.showLocalVideo(),u&&p.addStream(u),f&&p.addStream(f);var n=parser.getBrowser();"sendonly"!==e||"Chrome"!==n.name&&"Chromium"!==n.name||39!==n.major||(e="sendrecv"),t()}function a(e){void 0===e&&(e=MEDIA_CONSTRAINTS),navigator.mediaDevices.getUserMedia(e).then(function(e){u=e,o()}).catch(t)}if(!(this instanceof WebRtcPeer))return new WebRtcPeer(e,n,t);WebRtcPeer.super_.call(this),n instanceof Function&&(t=n,n=void 0),n=n||{},t=(t||noop).bind(this);var s,c=this,d=n.localVideo,l=n.remoteVideo,u=n.videoStream,f=n.audioStream,g=n.mediaConstraints,p=(n.connectionConstraints,n.peerConnection),h=n.sendSource||"webcam",m=n.dataChannelConfig,v=n.dataChannels||!1,b=uuid.v4(),P=recursive({iceServers:freeice()},n.configuration),S=n.onicecandidate;S&&this.on("icecandidate",S);var R=n.oncandidategatheringdone;R&&this.on("candidategatheringdone",R);var w=n.simulcast,C=n.multistream,y=new sdpTranslator.Interop,D=[],W=!1;if(Object.defineProperties(this,{peerConnection:{get:function(){return p}},id:{value:n.id||b,writable:!1},remoteVideo:{get:function(){return l}},localVideo:{get:function(){return d}},dataChannel:{get:function(){return s}},currentFrame:{get:function(){if(l){if(l.readyState<l.HAVE_CURRENT_DATA)throw new Error("No video stream data available");var e=document.createElement("canvas");return e.width=l.videoWidth,e.height=l.videoHeight,e.getContext("2d").drawImage(l,0,0),e}}}}),!p&&(p=new RTCPeerConnection(P),v&&!s)){var E="WebRtcPeer-"+c.id,T=void 0;m&&(E=m.id||E,T=m.options),s=p.createDataChannel(E,T),m&&(s.onopen=m.onopen,s.onclose=m.onclose,s.onmessage=m.onmessage,s.onbufferedamountlow=m.onbufferedamountlow,s.onerror=m.onerror||noop)}p.addEventListener("icecandidate",function(e){var n=e.candidate;if(EventEmitter.listenerCount(c,"icecandidate")||EventEmitter.listenerCount(c,"candidategatheringdone"))if(n){var t;t=C&&usePlanB?y.candidateToUnifiedPlan(n):n,c.emit("icecandidate",t),W=!1}else W||(c.emit("candidategatheringdone"),W=!0);else W||(D.push(n),n||(W=!0))}),p.ontrack=n.onaddstream,p.onnegotiationneeded=n.onnegotiationneeded,this.on("newListener",function(e,n){if("icecandidate"===e||"candidategatheringdone"===e)for(;D.length;){var t=D.shift();!t==("candidategatheringdone"===e)&&n(t)}});var k=bufferizeCandidates(p);this.addIceCandidate=function(e,n){var t;t=C&&usePlanB?y.candidateToPlanB(e):new RTCIceCandidate(e),logger.debug("Remote ICE candidate received",e),n=(n||noop).bind(this),k(t,n)},this.generateOffer=function(n){n=n.bind(this);var t=!0,r=!0;g&&(t="boolean"!=typeof g.audio||g.audio,r="boolean"!=typeof g.video||g.video);var o={offerToReceiveAudio:"sendonly"!==e&&t,offerToReceiveVideo:"sendonly"!==e&&r},a=o;logger.info("constraints: "+JSON.stringify(a)),p.createOffer(a).then(function(e){return logger.info("Created SDP offer"),e=i(e),p.setLocalDescription(e)}).then(function(){var e=p.localDescription;logger.info("Local description set",e.sdp),C&&usePlanB&&(e=y.toUnifiedPlan(e),logger.info("offer::origPlanB->UnifiedPlan",dumpSDP(e))),n(null,e.sdp,c.processAnswer.bind(c))}).catch(n)},this.getLocalSessionDescriptor=function(){return p.localDescription},this.getRemoteSessionDescriptor=function(){return p.remoteDescription},this.showLocalVideo=function(){d.src=URL.createObjectURL(u),d.muted=!0},this.send=function(e){s&&"open"===s.readyState?s.send(e):logger.warn("Trying to send data over a non-existing or closed data channel")},this.processAnswer=function(e,n){n=(n||noop).bind(this);var t=new RTCSessionDescription({type:"answer",sdp:e});if(C&&usePlanB){var i=y.toPlanB(t);logger.info("asnwer::planB",dumpSDP(i)),t=i}if(logger.info("SDP answer received, setting remote description"),"closed"===p.signalingState)return n("PeerConnection is closed");p.setRemoteDescription(t,function(){r(),n()},n)},this.processOffer=function(e,n){n=n.bind(this);var t=new RTCSessionDescription({type:"offer",sdp:e});if(C&&usePlanB){var o=y.toPlanB(t);logger.info("offer::planB",dumpSDP(o)),t=o}if(logger.info("SDP offer received, setting remote description"),"closed"===p.signalingState)return n("PeerConnection is closed");p.setRemoteDescription(t).then(function(){return r()}).then(function(){return p.createAnswer()}).then(function(e){return e=i(e),logger.info("Created SDP answer"),p.setLocalDescription(e)}).then(function(){var e=p.localDescription;C&&usePlanB&&(e=y.toUnifiedPlan(e),logger.info("answer::origPlanB->UnifiedPlan",dumpSDP(e))),logger.info("Local description set",e.sdp),n(null,e.sdp)}).catch(n)},"recvonly"===e||u||f?setTimeout(o,0):"webcam"===h?a(g):getScreenConstraints(h,function(e,n){if(e)return t(e);constraints=[g],constraints.unshift(n),a(recursive.apply(void 0,constraints))},b),this.on("_dispose",function(){d&&(d.pause(),d.src="",d.load(),d.muted=!1),l&&(l.pause(),l.src="",l.load()),c.removeAllListeners(),void 0!==window.cancelChooseDesktopMedia&&window.cancelChooseDesktopMedia(b)})}function createEnableDescriptor(e){var n="get"+e+"Tracks";return{enumerable:!0,get:function(){if(this.peerConnection){var e=this.peerConnection.getLocalStreams();if(e.length){for(var t,r=0;t=e[r];r++)for(var i,o=t[n](),a=0;i=o[a];a++)if(!i.enabled)return!1;return!0}}},set:function(e){function t(n){n.enabled=e}this.peerConnection.getLocalStreams().forEach(function(e){e[n]().forEach(t)})}}}function WebRtcPeerRecvonly(e,n){if(!(this instanceof WebRtcPeerRecvonly))return new WebRtcPeerRecvonly(e,n);WebRtcPeerRecvonly.super_.call(this,"recvonly",e,n)}function WebRtcPeerSendonly(e,n){if(!(this instanceof WebRtcPeerSendonly))return new WebRtcPeerSendonly(e,n);WebRtcPeerSendonly.super_.call(this,"sendonly",e,n)}function WebRtcPeerSendrecv(e,n){if(!(this instanceof WebRtcPeerSendrecv))return new WebRtcPeerSendrecv(e,n);WebRtcPeerSendrecv.super_.call(this,"sendrecv",e,n)}function harkUtils(e,n){return hark(e,n)}var freeice=require("freeice"),inherits=require("inherits"),UAParser=require("ua-parser-js"),uuid=require("uuid"),hark=require("hark"),EventEmitter=require("events").EventEmitter,recursive=require("merge").recursive.bind(void 0,!0),sdpTranslator=require("sdp-translator"),logger=window.Logger||console;try{require("kurento-browser-extensions")}catch(e){"undefined"==typeof getScreenConstraints&&(logger.warn("screen sharing is not available"),getScreenConstraints=function(e,n){n(new Error("This library is not enabled for screen sharing"))})}var MEDIA_CONSTRAINTS={audio:!0,video:{width:640,framerate:15}},ua=window&&window.navigator?window.navigator.userAgent:"",parser=new UAParser(ua),browser=parser.getBrowser(),usePlanB=!1;"Chrome"!==browser.name&&"Chromium"!==browser.name||(logger.info(browser.name+": using SDP PlanB"),usePlanB=!0);var dumpSDP=function(e){return void 0===e||null===e?"":"type: "+e.type+"\r\n"+e.sdp};inherits(WebRtcPeer,EventEmitter),Object.defineProperties(WebRtcPeer.prototype,{enabled:{enumerable:!0,get:function(){return this.audioEnabled&&this.videoEnabled},set:function(e){this.audioEnabled=this.videoEnabled=e}},audioEnabled:createEnableDescriptor("Audio"),videoEnabled:createEnableDescriptor("Video")}),WebRtcPeer.prototype.getLocalStream=function(e){if(this.peerConnection)return this.peerConnection.getLocalStreams()[e||0]},WebRtcPeer.prototype.getRemoteStream=function(e){if(this.peerConnection)return this.peerConnection.getRemoteStreams()[e||0]},WebRtcPeer.prototype.dispose=function(){logger.info("Disposing WebRtcPeer");var e=this.peerConnection,n=this.dataChannel;try{if(n){if("closed"===n.signalingState)return;n.close()}if(e){if("closed"===e.signalingState)return;e.getLocalStreams().forEach(streamStop),e.close()}}catch(e){logger.warn("Exception disposing webrtc peer "+e)}this.emit("_dispose")},inherits(WebRtcPeerRecvonly,WebRtcPeer),inherits(WebRtcPeerSendonly,WebRtcPeer),inherits(WebRtcPeerSendrecv,WebRtcPeer),exports.bufferizeCandidates=bufferizeCandidates,exports.WebRtcPeerRecvonly=WebRtcPeerRecvonly,exports.WebRtcPeerSendonly=WebRtcPeerSendonly,exports.WebRtcPeerSendrecv=WebRtcPeerSendrecv,exports.hark=harkUtils;
},{"events":4,"freeice":5,"hark":8,"inherits":9,"kurento-browser-extensions":10,"merge":11,"sdp-translator":18,"ua-parser-js":21,"uuid":23}],2:[function(require,module,exports){
window.addEventListener&&(module.exports=require("./index"));
},{"./index":3}],3:[function(require,module,exports){
var WebRtcPeer=require("./WebRtcPeer");exports.WebRtcPeer=WebRtcPeer;
},{"./WebRtcPeer":1}],4:[function(require,module,exports){
function EventEmitter(){this._events=this._events||{},this._maxListeners=this._maxListeners||void 0}function isFunction(e){return"function"==typeof e}function isNumber(e){return"number"==typeof e}function isObject(e){return"object"==typeof e&&null!==e}function isUndefined(e){return void 0===e}module.exports=EventEmitter,EventEmitter.EventEmitter=EventEmitter,EventEmitter.prototype._events=void 0,EventEmitter.prototype._maxListeners=void 0,EventEmitter.defaultMaxListeners=10,EventEmitter.prototype.setMaxListeners=function(e){if(!isNumber(e)||e<0||isNaN(e))throw TypeError("n must be a positive number");return this._maxListeners=e,this},EventEmitter.prototype.emit=function(e){var t,i,n,s,r,o;if(this._events||(this._events={}),"error"===e&&(!this._events.error||isObject(this._events.error)&&!this._events.error.length)){if((t=arguments[1])instanceof Error)throw t;var h=new Error('Uncaught, unspecified "error" event. ('+t+")");throw h.context=t,h}if(i=this._events[e],isUndefined(i))return!1;if(isFunction(i))switch(arguments.length){case 1:i.call(this);break;case 2:i.call(this,arguments[1]);break;case 3:i.call(this,arguments[1],arguments[2]);break;default:s=Array.prototype.slice.call(arguments,1),i.apply(this,s)}else if(isObject(i))for(s=Array.prototype.slice.call(arguments,1),o=i.slice(),n=o.length,r=0;r<n;r++)o[r].apply(this,s);return!0},EventEmitter.prototype.addListener=function(e,t){var i;if(!isFunction(t))throw TypeError("listener must be a function");return this._events||(this._events={}),this._events.newListener&&this.emit("newListener",e,isFunction(t.listener)?t.listener:t),this._events[e]?isObject(this._events[e])?this._events[e].push(t):this._events[e]=[this._events[e],t]:this._events[e]=t,isObject(this._events[e])&&!this._events[e].warned&&(i=isUndefined(this._maxListeners)?EventEmitter.defaultMaxListeners:this._maxListeners)&&i>0&&this._events[e].length>i&&(this._events[e].warned=!0,console.error("(node) warning: possible EventEmitter memory leak detected. %d listeners added. Use emitter.setMaxListeners() to increase limit.",this._events[e].length),"function"==typeof console.trace&&console.trace()),this},EventEmitter.prototype.on=EventEmitter.prototype.addListener,EventEmitter.prototype.once=function(e,t){function i(){this.removeListener(e,i),n||(n=!0,t.apply(this,arguments))}if(!isFunction(t))throw TypeError("listener must be a function");var n=!1;return i.listener=t,this.on(e,i),this},EventEmitter.prototype.removeListener=function(e,t){var i,n,s,r;if(!isFunction(t))throw TypeError("listener must be a function");if(!this._events||!this._events[e])return this;if(i=this._events[e],s=i.length,n=-1,i===t||isFunction(i.listener)&&i.listener===t)delete this._events[e],this._events.removeListener&&this.emit("removeListener",e,t);else if(isObject(i)){for(r=s;r-- >0;)if(i[r]===t||i[r].listener&&i[r].listener===t){n=r;break}if(n<0)return this;1===i.length?(i.length=0,delete this._events[e]):i.splice(n,1),this._events.removeListener&&this.emit("removeListener",e,t)}return this},EventEmitter.prototype.removeAllListeners=function(e){var t,i;if(!this._events)return this;if(!this._events.removeListener)return 0===arguments.length?this._events={}:this._events[e]&&delete this._events[e],this;if(0===arguments.length){for(t in this._events)"removeListener"!==t&&this.removeAllListeners(t);return this.removeAllListeners("removeListener"),this._events={},this}if(i=this._events[e],isFunction(i))this.removeListener(e,i);else if(i)for(;i.length;)this.removeListener(e,i[i.length-1]);return delete this._events[e],this},EventEmitter.prototype.listeners=function(e){return this._events&&this._events[e]?isFunction(this._events[e])?[this._events[e]]:this._events[e].slice():[]},EventEmitter.prototype.listenerCount=function(e){if(this._events){var t=this._events[e];if(isFunction(t))return 1;if(t)return t.length}return 0},EventEmitter.listenerCount=function(e,t){return e.listenerCount(t)};
},{}],5:[function(require,module,exports){
"use strict";var normalice=require("normalice"),freeice=module.exports=function(n){function t(n,t){for(var r,u=[],o=[].concat(e[n]);o.length&&u.length<t;)r=Math.random()*o.length|0,u=u.concat(o.splice(r,1));return u.map(function(t){return"string"==typeof t||t instanceof String?normalice(n+":"+t):t})}var r,e={stun:(n||{}).stun||require("./stun.json"),turn:(n||{}).turn||require("./turn.json")},u=(n||{}).stunCount||2,o=(n||{}).turnCount||0;return r=[].concat(t("stun",u)),o&&(r=r.concat(t("turn",o))),r};
},{"./stun.json":6,"./turn.json":7,"normalice":12}],6:[function(require,module,exports){
module.exports=["stun.l.google.com:19302","stun1.l.google.com:19302","stun2.l.google.com:19302","stun3.l.google.com:19302","stun4.l.google.com:19302","stun.ekiga.net","stun.ideasip.com","stun.schlund.de","stun.stunprotocol.org:3478","stun.voiparound.com","stun.voipbuster.com","stun.voipstunt.com","stun.voxgratia.org","stun.services.mozilla.com"]
},{}],7:[function(require,module,exports){
module.exports=[]
},{}],8:[function(require,module,exports){
function getMaxVolume(e,t){var i=-1/0;e.getFloatFrequencyData(t);for(var n=4,o=t.length;n<o;n++)t[n]>i&&t[n]<0&&(i=t[n]);return i}var WildEmitter=require("wildemitter"),audioContextType=window.AudioContext||window.webkitAudioContext,audioContext=null;module.exports=function(e,t){var i=new WildEmitter;if(!audioContextType)return i;var t=t||{},n=t.smoothing||.1,o=t.interval||50,a=t.threshold,r=t.play,s=t.history||10,u=!0;audioContext||(audioContext=new audioContextType);var p,g,d;d=audioContext.createAnalyser(),d.fftSize=512,d.smoothingTimeConstant=n,g=new Float32Array(d.fftSize),e.jquery&&(e=e[0]),e instanceof HTMLAudioElement||e instanceof HTMLVideoElement?(p=audioContext.createMediaElementSource(e),void 0===r&&(r=!0),a=a||-50):(p=audioContext.createMediaStreamSource(e),a=a||-50),p.connect(d),r&&d.connect(audioContext.destination),i.speaking=!1,i.setThreshold=function(e){a=e},i.setInterval=function(e){o=e},i.stop=function(){u=!1,i.emit("volume_change",-100,a),i.speaking&&(i.speaking=!1,i.emit("stopped_speaking"))},i.speakingHistory=[];for(var l=0;l<s;l++)i.speakingHistory.push(0);var f=function(){setTimeout(function(){if(u){var e=getMaxVolume(d,g);i.emit("volume_change",e,a);var t=0;if(e>a&&!i.speaking){for(var n=i.speakingHistory.length-3;n<i.speakingHistory.length;n++)t+=i.speakingHistory[n];t>=2&&(i.speaking=!0,i.emit("speaking"))}else if(e<a&&i.speaking){for(var n=0;n<i.speakingHistory.length;n++)t+=i.speakingHistory[n];0==t&&(i.speaking=!1,i.emit("stopped_speaking"))}i.speakingHistory.shift(),i.speakingHistory.push(0+(e>a)),f()}},o)};return f(),i};
},{"wildemitter":24}],9:[function(require,module,exports){
"function"==typeof Object.create?module.exports=function(t,e){t.super_=e,t.prototype=Object.create(e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}})}:module.exports=function(t,e){t.super_=e;var o=function(){};o.prototype=e.prototype,t.prototype=new o,t.prototype.constructor=t};
},{}],10:[function(require,module,exports){

},{}],11:[function(require,module,exports){
!function(e){function o(e,r){if("object"!==n(e))return r;for(var t in r)"object"===n(e[t])&&"object"===n(r[t])?e[t]=o(e[t],r[t]):e[t]=r[t];return e}function r(e,r,c){var u=c[0],f=c.length;(e||"object"!==n(u))&&(u={});for(var i=0;i<f;++i){var l=c[i];if("object"===n(l))for(var a in l){var v=e?t.clone(l[a]):l[a];u[a]=r?o(u[a],v):v}}return u}function n(e){return{}.toString.call(e).slice(8,-1).toLowerCase()}var t=function(e){return r(!0===e,!1,arguments)};t.recursive=function(e){return r(!0===e,!0,arguments)},t.clone=function(e){var o,r,c=e,u=n(e);if("array"===u)for(c=[],r=e.length,o=0;o<r;++o)c[o]=t.clone(e[o]);else if("object"===u){c={};for(o in e)c[o]=t.clone(e[o])}return c},e?module.exports=t:window.merge=t}("object"==typeof module&&module&&"object"==typeof module.exports&&module.exports);
},{}],12:[function(require,module,exports){
var protocols=["stun:","turn:"];module.exports=function(e){var r,t,n=(e||{}).url||e,l={};return"string"==typeof n||n instanceof String?(n=n.trim(),(r=protocols[protocols.indexOf(n.slice(0,5))])?(n=n.slice(5),t=n.split("@"),l.username=e.username,l.credential=e.credential,t.length>1&&(n=t[1],t=t[0].split(":"),l.username=t[0],l.credential=(e||{}).credential||t[1]||""),l.url=r+n,l.urls=[l.url],l):e):e};
},{}],13:[function(require,module,exports){
var grammar=module.exports={v:[{name:"version",reg:/^(\d*)$/}],o:[{name:"origin",reg:/^(\S*) (\d*) (\d*) (\S*) IP(\d) (\S*)/,names:["username","sessionId","sessionVersion","netType","ipVer","address"],format:"%s %s %d %s IP%d %s"}],s:[{name:"name"}],i:[{name:"description"}],u:[{name:"uri"}],e:[{name:"email"}],p:[{name:"phone"}],z:[{name:"timezones"}],r:[{name:"repeats"}],t:[{name:"timing",reg:/^(\d*) (\d*)/,names:["start","stop"],format:"%d %d"}],c:[{name:"connection",reg:/^IN IP(\d) (\S*)/,names:["version","ip"],format:"IN IP%d %s"}],b:[{push:"bandwidth",reg:/^(TIAS|AS|CT|RR|RS):(\d*)/,names:["type","limit"],format:"%s:%s"}],m:[{reg:/^(\w*) (\d*) ([\w\/]*)(?: (.*))?/,names:["type","port","protocol","payloads"],format:"%s %d %s %s"}],a:[{push:"rtp",reg:/^rtpmap:(\d*) ([\w\-]*)(?:\s*\/(\d*)(?:\s*\/(\S*))?)?/,names:["payload","codec","rate","encoding"],format:function(e){return e.encoding?"rtpmap:%d %s/%s/%s":e.rate?"rtpmap:%d %s/%s":"rtpmap:%d %s"}},{push:"fmtp",reg:/^fmtp:(\d*) ([\S| ]*)/,names:["payload","config"],format:"fmtp:%d %s"},{name:"control",reg:/^control:(.*)/,format:"control:%s"},{name:"rtcp",reg:/^rtcp:(\d*)(?: (\S*) IP(\d) (\S*))?/,names:["port","netType","ipVer","address"],format:function(e){return null!=e.address?"rtcp:%d %s IP%d %s":"rtcp:%d"}},{push:"rtcpFbTrrInt",reg:/^rtcp-fb:(\*|\d*) trr-int (\d*)/,names:["payload","value"],format:"rtcp-fb:%d trr-int %d"},{push:"rtcpFb",reg:/^rtcp-fb:(\*|\d*) ([\w-_]*)(?: ([\w-_]*))?/,names:["payload","type","subtype"],format:function(e){return null!=e.subtype?"rtcp-fb:%s %s %s":"rtcp-fb:%s %s"}},{push:"ext",reg:/^extmap:([\w_\/]*) (\S*)(?: (\S*))?/,names:["value","uri","config"],format:function(e){return null!=e.config?"extmap:%s %s %s":"extmap:%s %s"}},{push:"crypto",reg:/^crypto:(\d*) ([\w_]*) (\S*)(?: (\S*))?/,names:["id","suite","config","sessionConfig"],format:function(e){return null!=e.sessionConfig?"crypto:%d %s %s %s":"crypto:%d %s %s"}},{name:"setup",reg:/^setup:(\w*)/,format:"setup:%s"},{name:"mid",reg:/^mid:([^\s]*)/,format:"mid:%s"},{name:"msid",reg:/^msid:(.*)/,format:"msid:%s"},{name:"ptime",reg:/^ptime:(\d*)/,format:"ptime:%d"},{name:"maxptime",reg:/^maxptime:(\d*)/,format:"maxptime:%d"},{name:"direction",reg:/^(sendrecv|recvonly|sendonly|inactive)/},{name:"icelite",reg:/^(ice-lite)/},{name:"iceUfrag",reg:/^ice-ufrag:(\S*)/,format:"ice-ufrag:%s"},{name:"icePwd",reg:/^ice-pwd:(\S*)/,format:"ice-pwd:%s"},{name:"fingerprint",reg:/^fingerprint:(\S*) (\S*)/,names:["type","hash"],format:"fingerprint:%s %s"},{push:"candidates",reg:/^candidate:(\S*) (\d*) (\S*) (\d*) (\S*) (\d*) typ (\S*)(?: raddr (\S*) rport (\d*))?(?: tcptype (\S*))?(?: generation (\d*))?/,names:["foundation","component","transport","priority","ip","port","type","raddr","rport","tcptype","generation"],format:function(e){var r="candidate:%s %d %s %d %s %d typ %s";return r+=null!=e.raddr?" raddr %s rport %d":"%v%v",r+=null!=e.tcptype?" tcptype %s":"%v",null!=e.generation&&(r+=" generation %d"),r}},{name:"endOfCandidates",reg:/^(end-of-candidates)/},{name:"remoteCandidates",reg:/^remote-candidates:(.*)/,format:"remote-candidates:%s"},{name:"iceOptions",reg:/^ice-options:(\S*)/,format:"ice-options:%s"},{push:"ssrcs",reg:/^ssrc:(\d*) ([\w_]*):(.*)/,names:["id","attribute","value"],format:"ssrc:%d %s:%s"},{push:"ssrcGroups",reg:/^ssrc-group:(\w*) (.*)/,names:["semantics","ssrcs"],format:"ssrc-group:%s %s"},{name:"msidSemantic",reg:/^msid-semantic:\s?(\w*) (\S*)/,names:["semantic","token"],format:"msid-semantic: %s %s"},{push:"groups",reg:/^group:(\w*) (.*)/,names:["type","mids"],format:"group:%s %s"},{name:"rtcpMux",reg:/^(rtcp-mux)/},{name:"rtcpRsize",reg:/^(rtcp-rsize)/},{push:"invalid",names:["value"]}]};Object.keys(grammar).forEach(function(e){grammar[e].forEach(function(e){e.reg||(e.reg=/(.*)/),e.format||(e.format="%s")})});
},{}],14:[function(require,module,exports){
var parser=require("./parser"),writer=require("./writer");exports.write=writer,exports.parse=parser.parse,exports.parseFmtpConfig=parser.parseFmtpConfig,exports.parsePayloads=parser.parsePayloads,exports.parseRemoteCandidates=parser.parseRemoteCandidates;
},{"./parser":15,"./writer":16}],15:[function(require,module,exports){
var toIntIfInt=function(t){return String(Number(t))===t?Number(t):t},attachProperties=function(t,r,e,n){if(n&&!e)r[n]=toIntIfInt(t[1]);else for(var a=0;a<e.length;a+=1)null!=t[a+1]&&(r[e[a]]=toIntIfInt(t[a+1]))},parseReg=function(t,r,e){var n=t.name&&t.names;t.push&&!r[t.push]?r[t.push]=[]:n&&!r[t.name]&&(r[t.name]={});var a=t.push?{}:n?r[t.name]:r;attachProperties(e.match(t.reg),a,t.names,t.name),t.push&&r[t.push].push(a)},grammar=require("./grammar"),validLine=RegExp.prototype.test.bind(/^([a-z])=(.*)/);exports.parse=function(t){var r={},e=[],n=r;return t.split(/(\r\n|\r|\n)/).filter(validLine).forEach(function(t){var r=t[0],a=t.slice(2);"m"===r&&(e.push({rtp:[],fmtp:[]}),n=e[e.length-1]);for(var p=0;p<(grammar[r]||[]).length;p+=1){var s=grammar[r][p];if(s.reg.test(a))return parseReg(s,n,a)}}),r.media=e,r};var fmtpReducer=function(t,r){var e=r.split("=");return 2===e.length&&(t[e[0]]=toIntIfInt(e[1])),t};exports.parseFmtpConfig=function(t){return t.split(/\;\s?/).reduce(fmtpReducer,{})},exports.parsePayloads=function(t){return t.split(" ").map(Number)},exports.parseRemoteCandidates=function(t){for(var r=[],e=t.split(" ").map(toIntIfInt),n=0;n<e.length;n+=3)r.push({component:e[n],ip:e[n+1],port:e[n+2]});return r};
},{"./grammar":13}],16:[function(require,module,exports){
var grammar=require("./grammar"),formatRegExp=/%[sdv%]/g,format=function(n){var r=1,e=arguments,a=e.length;return n.replace(formatRegExp,function(n){if(r>=a)return n;var u=e[r];switch(r+=1,n){case"%%":return"%";case"%s":return String(u);case"%d":return Number(u);case"%v":return""}})},makeLine=function(n,r,e){var a=r.format instanceof Function?r.format(r.push?e:e[r.name]):r.format,u=[n+"="+a];if(r.names)for(var m=0;m<r.names.length;m+=1){var t=r.names[m];r.name?u.push(e[r.name][t]):u.push(e[r.names[m]])}else u.push(e[r.name]);return format.apply(null,u)},defaultOuterOrder=["v","o","s","i","u","e","p","c","b","t","r","z","a"],defaultInnerOrder=["i","c","b","a"];module.exports=function(n,r){r=r||{},null==n.version&&(n.version=0),null==n.name&&(n.name=" "),n.media.forEach(function(n){null==n.payloads&&(n.payloads="")});var e=r.outerOrder||defaultOuterOrder,a=r.innerOrder||defaultInnerOrder,u=[];return e.forEach(function(r){grammar[r].forEach(function(e){e.name in n&&null!=n[e.name]?u.push(makeLine(r,e,n)):e.push in n&&null!=n[e.push]&&n[e.push].forEach(function(n){u.push(makeLine(r,e,n))})})}),n.media.forEach(function(n){u.push(makeLine("m",grammar.m[0],n)),a.forEach(function(r){grammar[r].forEach(function(e){e.name in n&&null!=n[e.name]?u.push(makeLine(r,e,n)):e.push in n&&null!=n[e.push]&&n[e.push].forEach(function(n){u.push(makeLine(r,e,n))})})})}),u.join("\r\n")+"\r\n"};
},{"./grammar":13}],17:[function(require,module,exports){
module.exports=function r(t){if(!t)return!1;if(this.length!=t.length)return!1;for(var e=0,n=this.length;e<n;e++)if(this[e]instanceof Array&&t[e]instanceof Array){if(!r.apply(this[e],[t[e]]))return!1}else if(this[e]!=t[e])return!1;return!0};
},{}],18:[function(require,module,exports){
exports.Interop=require("./interop");
},{"./interop":19}],19:[function(require,module,exports){
"use strict";function Interop(){this.cache={mlB2UMap:{},mlU2BMap:{}}}function addSetupAttr(e){void 0!==e.setup&&("active"===e.setup?e.setup="passive":"passive"===e.setup&&(e.setup="active"))}var transform=require("./transform"),arrayEquals=require("./array-equals");module.exports=Interop,Interop.prototype.candidateToUnifiedPlan=function(e){var r=new RTCIceCandidate(e);return r.sdpMLineIndex=this.cache.mlB2UMap[r.sdpMLineIndex],r},Interop.prototype.candidateToPlanB=function(e){var r=new RTCIceCandidate(e);if(0===r.sdpMid.indexOf("audio"))r.sdpMid="audio";else{if(0!==r.sdpMid.indexOf("video"))throw new Error("candidate with "+r.sdpMid+" not allowed");r.sdpMid="video"}return r.sdpMLineIndex=this.cache.mlU2BMap[r.sdpMLineIndex],r},Interop.prototype.getFirstSendingIndexFromAnswer=function(e){if(!this.cache.answer)return null;var r=transform.parse(this.cache.answer);if(r&&r.media&&Array.isArray(r.media))for(var i=0;i<r.media.length;i++)if(r.media[i].type==e&&(!r.media[i].direction||"sendrecv"===r.media[i].direction||"sendonly"===r.media[i].direction))return i;return null},Interop.prototype.toPlanB=function(e){var r=this;if("object"!=typeof e||null===e||"string"!=typeof e.sdp)return console.warn("An empty description was passed as an argument."),e;var i=transform.parse(e.sdp);if(void 0===i.media||!Array.isArray(i.media)||0===i.media.length)return console.warn("The description has no media."),e;if(i.media.length<=3&&i.media.every(function(e){return-1!==["video","audio","data"].indexOf(e.mid)}))return console.warn("This description does not look like Unified Plan."),e;for(var t=e.sdp,o=!1,n=0;n<i.media.length;n++){i.media[n].rtp.forEach(function(e){if("NULL"===e.codec){o=!0;var i=transform.parse(r.cache.offer);e.codec=i.media[n].rtp[0].codec}})}o&&(t=transform.write(i)),this.cache[e.type]=t;var s=i.media;i.media=[];var a={},d=[];s.forEach(function(e){if(("string"!=typeof e.rtcpMux||"rtcp-mux"!==e.rtcpMux)&&"inactive"!==e.direction)throw new Error("Cannot convert to Plan B because m-lines without the rtcp-mux attribute were found.");if(void 0!==a[e.type]&&"inactive"!==a[e.type].direction||(a[e.type]=e),e.protocol!=a[e.type].protocol)throw new Error("Cannot convert to Plan B because m-lines have different protocols and this library does not have support for that");if(e.payloads!=a[e.type].payloads)throw new Error("Cannot convert to Plan B because m-lines have different payloads and this library does not have support for that")}),s.forEach(function(e){if("application"===e.type)return i.media.push(e),void d.push(e.mid);"object"==typeof e.sources&&Object.keys(e.sources).forEach(function(r){"object"!=typeof a[e.type].sources&&(a[e.type].sources={}),a[e.type].sources[r]=e.sources[r],void 0!==e.msid&&(a[e.type].sources[r].msid=e.msid)}),void 0!==e.ssrcGroups&&Array.isArray(e.ssrcGroups)&&(void 0!==a[e.type].ssrcGroups&&Array.isArray(a[e.type].ssrcGroups)||(a[e.type].ssrcGroups=[]),a[e.type].ssrcGroups=a[e.type].ssrcGroups.concat(e.ssrcGroups)),a[e.type]===e&&(e.mid=e.type,delete e.bundleOnly,delete e.msid,e.type==s[0].type?(d.unshift(e.type),i.media.unshift(e)):(d.push(e.type),i.media.push(e)))}),void 0!==i.groups&&i.groups.some(function(e){if("BUNDLE"===e.type)return e.mids=d.join(" "),!0}),i.msidSemantic={semantic:"WMS",token:"*"};var c=transform.write(i);return new RTCSessionDescription({type:e.type,sdp:c})},Interop.prototype.toUnifiedPlan=function(e){var r=this;if("object"!=typeof e||null===e||"string"!=typeof e.sdp)return console.warn("An empty description was passed as an argument."),e;var i=transform.parse(e.sdp);if(void 0===i.media||!Array.isArray(i.media)||0===i.media.length)return console.warn("The description has no media."),e;if(i.media.length>3||!i.media.every(function(e){return-1!==["video","audio","data"].indexOf(e.mid)}))return console.warn("This description does not look like Plan B."),e;var t=[];i.media.forEach(function(e){t.push(e.mid)});var o=!1;if(void 0!==i.groups&&Array.isArray(i.groups)&&(o=i.groups.every(function(e){return"BUNDLE"!==e.type||arrayEquals.apply(e.mids.sort(),[t.sort()])})),!o){var n=!1;if(i.media.forEach(function(e){"inactive"!==e.direction&&(n=!0)}),n)throw new Error("Cannot convert to Unified Plan because m-lines that are not bundled were found.")}var s;if("answer"===e.type)s="offer";else{if("offer"!==e.type)throw new Error("Type '"+e.type+"' not supported.");s="answer"}var a;void 0!==this.cache[s]&&(a=transform.parse(this.cache[s]));var d,c,p,u,f={audio:{},video:{}},m={},y=0,l=0,v={},h={},w={},g={};if(i.media.forEach(function(i){if(("string"!=typeof i.rtcpMux||"rtcp-mux"!==i.rtcpMux)&&"inactive"!==i.direction)throw new Error("Cannot convert to Unified Plan because m-lines without the rtcp-mux attribute were found.");if("application"===i.type)return void(m[i.mid]=i);var t=i.sources,o=i.ssrcGroups,n=i.port;if(void 0!==i.candidates&&(d=void 0!==d?d.concat(i.candidates):i.candidates),void 0!==c&&void 0!==i.iceUfrag&&c!=i.iceUfrag)throw new Error("Only BUNDLE supported, iceUfrag must be the same for all m-lines.\n\tLast iceUfrag: "+c+"\n\tNew iceUfrag: "+i.iceUfrag);if(void 0!==i.iceUfrag&&(c=i.iceUfrag),void 0!==p&&void 0!==i.icePwd&&p!=i.icePwd)throw new Error("Only BUNDLE supported, icePwd must be the same for all m-lines.\n\tLast icePwd: "+p+"\n\tNew icePwd: "+i.icePwd);if(void 0!==i.icePwd&&(p=i.icePwd),void 0!==u&&void 0!==i.fingerprint&&(u.type!=i.fingerprint.type||u.hash!=i.fingerprint.hash))throw new Error("Only BUNDLE supported, fingerprint must be the same for all m-lines.\n\tLast fingerprint: "+JSON.stringify(u)+"\n\tNew fingerprint: "+JSON.stringify(i.fingerprint));void 0!==i.fingerprint&&(u=i.fingerprint),h[i.type]=i.payloads,w[i.type]=i.rtcpFb,g[i.type]=i.rtp;var s={};void 0!==o&&Array.isArray(o)&&o.forEach(function(e){void 0!==e.ssrcs&&Array.isArray(e.ssrcs)&&e.ssrcs.forEach(function(r){void 0===s[r]&&(s[r]=[]),s[r].push(e)})});var E={};if("object"==typeof t)delete i.sources,delete i.ssrcGroups,delete i.candidates,delete i.iceUfrag,delete i.icePwd,delete i.fingerprint,delete i.port,delete i.mid,Object.keys(t).forEach(function(o){var h;if("offer"===e.type&&!t[o].msid)return void(f[i.type][o]=t[o]);void 0!==s[o]&&Array.isArray(s[o])&&s[o].some(function(e){return e.ssrcs.some(function(e){if("object"==typeof E[e])return h=E[e],!0})}),"object"==typeof h?(h.sources[o]=t[o],delete t[o].msid):(h=Object.create(i),E[o]=h,void 0!==t[o].msid&&(h.msid=t[o].msid,delete t[o].msid),h.sources={},h.sources[o]=t[o],h.ssrcGroups=s[o],void 0!==a&&void 0!==a.media&&Array.isArray(a.media)&&a.media.forEach(function(e){"object"==typeof e.sources&&Object.keys(e.sources).forEach(function(r){r===o&&(h.mid=e.mid)})}),void 0===h.mid&&(h.mid=[i.type,"-",o].join("")),h.candidates=d,h.iceUfrag=c,h.icePwd=p,h.fingerprint=u,h.port=n,m[h.mid]=h,v[l]=h.sources,r.cache.mlU2BMap[l]=y,void 0===r.cache.mlB2UMap[y]&&(r.cache.mlB2UMap[y]=l),l++)});else{var U=i;U.candidates=d,U.iceUfrag=c,U.icePwd=p,U.fingerprint=u,U.port=n,m[U.mid]=U,r.cache.mlU2BMap[l]=y,void 0===r.cache.mlB2UMap[y]&&(r.cache.mlB2UMap[y]=l)}y++}),i.media=[],t=[],"answer"===e.type)for(var E=0;E<a.media.length;E++){var U=a.media[E];delete U.msid,delete U.sources,delete U.ssrcGroups,void 0===v[E]?U.direction&&"sendrecv"!==U.direction?"sendonly"===U.direction&&(U.direction="inactive"):U.direction="recvonly":U.direction&&"sendrecv"!==U.direction?"recvonly"===U.direction&&(U.direction="sendonly"):U.direction="sendrecv",U.sources=v[E],U.candidates=d,U.iceUfrag=c,U.icePwd=p,U.fingerprint=u,U.rtp=g[U.type],U.payloads=h[U.type],U.rtcpFb=w[U.type],i.media.push(U),"string"==typeof U.mid&&t.push(U.mid)}else void 0!==a&&void 0!==a.media&&Array.isArray(a.media)&&a.media.forEach(function(e){t.push(e.mid),void 0!==m[e.mid]?i.media.push(m[e.mid]):(delete e.msid,delete e.sources,delete e.ssrcGroups,e.direction&&"sendrecv"!==e.direction||(e.direction="sendonly"),e.direction&&"recvonly"!==e.direction||(e.direction="inactive"),addSetupAttr(e),i.media.push(e))}),Object.keys(m).forEach(function(e){if(-1===t.indexOf(e))if(t.push(e),"recvonly"===m[e].direction){var r=!1;i.media.some(function(i){if(("sendrecv"===i.direction||"sendonly"===i.direction)&&i.type===m[e].type)return Object.keys(m[e].sources).forEach(function(r){i.sources[r]=m[e].sources[r]}),r=!0,!0}),r||i.media.push(m[e])}else i.media.push(m[e])});["audio","video"].forEach(function(e){if(i&&i.media&&Array.isArray(i.media)){var t=null;if(Object.keys(f[e]).length>0&&null===(t=r.getFirstSendingIndexFromAnswer(e)))for(var o=0;o<i.media.length;o++)if(i.media[o].type===e){t=o;break}if(t&&i.media.length>t){var n=i.media[t];Object.keys(f[e]).forEach(function(r){n.sources&&n.sources[r]&&console.warn("Replacing an existing SSRC."),n.sources||(n.sources={}),n.sources[r]=f[e][r]})}}}),void 0!==i.groups&&i.groups.some(function(e){if("BUNDLE"===e.type)return e.mids=t.join(" "),!0}),i.msidSemantic={semantic:"WMS",token:"*"};var b=transform.write(i);return this.cache[e.type]=b,new RTCSessionDescription({type:e.type,sdp:b})};
},{"./array-equals":17,"./transform":20}],20:[function(require,module,exports){
var transform=require("sdp-transform");exports.write=function(s,r){return void 0!==s&&void 0!==s.media&&Array.isArray(s.media)&&s.media.forEach(function(s){void 0!==s.sources&&0!==Object.keys(s.sources).length&&(s.ssrcs=[],Object.keys(s.sources).forEach(function(r){var o=s.sources[r];Object.keys(o).forEach(function(i){s.ssrcs.push({id:r,attribute:i,value:o[i]})})}),delete s.sources),void 0!==s.ssrcGroups&&Array.isArray(s.ssrcGroups)&&s.ssrcGroups.forEach(function(s){void 0!==s.ssrcs&&Array.isArray(s.ssrcs)&&(s.ssrcs=s.ssrcs.join(" "))})}),void 0!==s&&void 0!==s.groups&&Array.isArray(s.groups)&&s.groups.forEach(function(s){void 0!==s.mids&&Array.isArray(s.mids)&&(s.mids=s.mids.join(" "))}),transform.write(s,r)},exports.parse=function(s){var r=transform.parse(s);return void 0!==r&&void 0!==r.media&&Array.isArray(r.media)&&r.media.forEach(function(s){void 0!==s.ssrcs&&Array.isArray(s.ssrcs)&&(s.sources={},s.ssrcs.forEach(function(r){s.sources[r.id]||(s.sources[r.id]={}),s.sources[r.id][r.attribute]=r.value}),delete s.ssrcs),void 0!==s.ssrcGroups&&Array.isArray(s.ssrcGroups)&&s.ssrcGroups.forEach(function(s){"string"==typeof s.ssrcs&&(s.ssrcs=s.ssrcs.split(" "))})}),void 0!==r&&void 0!==r.groups&&Array.isArray(r.groups)&&r.groups.forEach(function(s){"string"==typeof s.mids&&(s.mids=s.mids.split(" "))}),r};
},{"sdp-transform":14}],21:[function(require,module,exports){
!function(i,e){"use strict";var s="model",o="name",r="type",n="vendor",a="version",t="mobile",w="tablet",d={extend:function(i,e){var s={};for(var o in i)e[o]&&e[o].length%2==0?s[o]=e[o].concat(i[o]):s[o]=i[o];return s},has:function(i,e){return"string"==typeof i&&-1!==e.toLowerCase().indexOf(i.toLowerCase())},lowerize:function(i){return i.toLowerCase()},major:function(i){return"string"==typeof i?i.replace(/[^\d\.]/g,"").split(".")[0]:void 0},trim:function(i){return i.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,"")}},l={rgx:function(){for(var i,e,s,o,r,n,a,t=0,w=arguments;t<w.length&&!n;){var d=w[t],l=w[t+1];if(void 0===i){i={};for(o in l)l.hasOwnProperty(o)&&(r=l[o],"object"==typeof r?i[r[0]]=void 0:i[r]=void 0)}for(e=s=0;e<d.length&&!n;)if(n=d[e++].exec(this.getUA()))for(o=0;o<l.length;o++)a=n[++s],r=l[o],"object"==typeof r&&r.length>0?2==r.length?"function"==typeof r[1]?i[r[0]]=r[1].call(this,a):i[r[0]]=r[1]:3==r.length?"function"!=typeof 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