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e1b9d5f3cd
Moodle announced that support for IE would be dropped back in August 2020 with Moodle 3.9 but not active steps were taken at that time. That decision was made in MDLSITE-6109 and this particular step was meant to be taken in Moodle 3.10. This is the first step taken to actively drop support for IE. This commit also bumps the browser support pattern from 0.25% to 0.3%. The percentage here includes any browser where at least this percentage of users worldwide may be using a browser. In this case it causes support for Android 4.3-4.4 to be dropped, which relate to Android KitKat (released 2013). This combination of changes means that all of the supported browsers in our compatibility list support modern features including async, for...of, classes, native Promises, and more which has a huge impact on the ease of debugging code, and drastically reduces the minified file size because a number of native Polyfills included by Babel are no longer included.
3 lines
77 KiB
JavaScript
3 lines
77 KiB
JavaScript
define("core/adapter",[],(function(){return function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a="function"==typeof require&&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||e)}),l,l.exports,e,t,n,r)}return n[o].exports}for(var i="function"==typeof require&&require,o=0;o<r.length;o++)s(r[o]);return s}({1:[function(require,module,exports){var adapter=(0,require("./adapter_factory.js").adapterFactory)({window:"undefined"==typeof window?void 0:window});module.exports=adapter},{"./adapter_factory.js":2}],2:[function(require,module,exports){Object.defineProperty(exports,"__esModule",{value:!0}),exports.adapterFactory=function(){var _ref=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},window=_ref.window,options=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{shimChrome:!0,shimFirefox:!0,shimSafari:!0},logging=utils.log,browserDetails=utils.detectBrowser(window),adapter={browserDetails:browserDetails,commonShim:commonShim,extractVersion:utils.extractVersion,disableLog:utils.disableLog,disableWarnings:utils.disableWarnings,sdp:sdp};switch(browserDetails.browser){case"chrome":if(!chromeShim||!chromeShim.shimPeerConnection||!options.shimChrome)return logging("Chrome shim is not included in this adapter release."),adapter;if(null===browserDetails.version)return logging("Chrome shim can not determine version, not shimming."),adapter;logging("adapter.js shimming chrome."),adapter.browserShim=chromeShim,commonShim.shimAddIceCandidateNullOrEmpty(window,browserDetails),chromeShim.shimGetUserMedia(window,browserDetails),chromeShim.shimMediaStream(window,browserDetails),chromeShim.shimPeerConnection(window,browserDetails),chromeShim.shimOnTrack(window,browserDetails),chromeShim.shimAddTrackRemoveTrack(window,browserDetails),chromeShim.shimGetSendersWithDtmf(window,browserDetails),chromeShim.shimGetStats(window,browserDetails),chromeShim.shimSenderReceiverGetStats(window,browserDetails),chromeShim.fixNegotiationNeeded(window,browserDetails),commonShim.shimRTCIceCandidate(window,browserDetails),commonShim.shimConnectionState(window,browserDetails),commonShim.shimMaxMessageSize(window,browserDetails),commonShim.shimSendThrowTypeError(window,browserDetails),commonShim.removeExtmapAllowMixed(window,browserDetails);break;case"firefox":if(!firefoxShim||!firefoxShim.shimPeerConnection||!options.shimFirefox)return logging("Firefox shim is not included in this adapter release."),adapter;logging("adapter.js shimming firefox."),adapter.browserShim=firefoxShim,commonShim.shimAddIceCandidateNullOrEmpty(window,browserDetails),firefoxShim.shimGetUserMedia(window,browserDetails),firefoxShim.shimPeerConnection(window,browserDetails),firefoxShim.shimOnTrack(window,browserDetails),firefoxShim.shimRemoveStream(window,browserDetails),firefoxShim.shimSenderGetStats(window,browserDetails),firefoxShim.shimReceiverGetStats(window,browserDetails),firefoxShim.shimRTCDataChannel(window,browserDetails),firefoxShim.shimAddTransceiver(window,browserDetails),firefoxShim.shimGetParameters(window,browserDetails),firefoxShim.shimCreateOffer(window,browserDetails),firefoxShim.shimCreateAnswer(window,browserDetails),commonShim.shimRTCIceCandidate(window,browserDetails),commonShim.shimConnectionState(window,browserDetails),commonShim.shimMaxMessageSize(window,browserDetails),commonShim.shimSendThrowTypeError(window,browserDetails);break;case"safari":if(!safariShim||!options.shimSafari)return logging("Safari shim is not included in this adapter release."),adapter;logging("adapter.js shimming safari."),adapter.browserShim=safariShim,commonShim.shimAddIceCandidateNullOrEmpty(window,browserDetails),safariShim.shimRTCIceServerUrls(window,browserDetails),safariShim.shimCreateOfferLegacy(window,browserDetails),safariShim.shimCallbacksAPI(window,browserDetails),safariShim.shimLocalStreamsAPI(window,browserDetails),safariShim.shimRemoteStreamsAPI(window,browserDetails),safariShim.shimTrackEventTransceiver(window,browserDetails),safariShim.shimGetUserMedia(window,browserDetails),safariShim.shimAudioContext(window,browserDetails),commonShim.shimRTCIceCandidate(window,browserDetails),commonShim.shimMaxMessageSize(window,browserDetails),commonShim.shimSendThrowTypeError(window,browserDetails),commonShim.removeExtmapAllowMixed(window,browserDetails);break;default:logging("Unsupported browser!")}return adapter};var utils=_interopRequireWildcard(require("./utils")),chromeShim=_interopRequireWildcard(require("./chrome/chrome_shim")),firefoxShim=_interopRequireWildcard(require("./firefox/firefox_shim")),safariShim=_interopRequireWildcard(require("./safari/safari_shim")),commonShim=_interopRequireWildcard(require("./common_shim")),sdp=_interopRequireWildcard(require("sdp"));function _interopRequireWildcard(obj){if(obj&&obj.__esModule)return obj;var newObj={};if(null!=obj)for(var key in obj)Object.prototype.hasOwnProperty.call(obj,key)&&(newObj[key]=obj[key]);return newObj.default=obj,newObj}},{"./chrome/chrome_shim":3,"./common_shim":6,"./firefox/firefox_shim":7,"./safari/safari_shim":10,"./utils":11,sdp:12}],3:[function(require,module,exports){Object.defineProperty(exports,"__esModule",{value:!0}),exports.shimGetDisplayMedia=exports.shimGetUserMedia=void 0;var _typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(obj){return typeof obj}:function(obj){return obj&&"function"==typeof Symbol&&obj.constructor===Symbol&&obj!==Symbol.prototype?"symbol":typeof obj},_getusermedia=require("./getusermedia");Object.defineProperty(exports,"shimGetUserMedia",{enumerable:!0,get:function(){return _getusermedia.shimGetUserMedia}});var _getdisplaymedia=require("./getdisplaymedia");Object.defineProperty(exports,"shimGetDisplayMedia",{enumerable:!0,get:function(){return _getdisplaymedia.shimGetDisplayMedia}}),exports.shimMediaStream=function(window){window.MediaStream=window.MediaStream||window.webkitMediaStream},exports.shimOnTrack=function(window){if("object"===(void 0===window?"undefined":_typeof(window))&&window.RTCPeerConnection&&!("ontrack"in window.RTCPeerConnection.prototype)){Object.defineProperty(window.RTCPeerConnection.prototype,"ontrack",{get:function(){return this._ontrack},set:function(f){this._ontrack&&this.removeEventListener("track",this._ontrack),this.addEventListener("track",this._ontrack=f)},enumerable:!0,configurable:!0});var origSetRemoteDescription=window.RTCPeerConnection.prototype.setRemoteDescription;window.RTCPeerConnection.prototype.setRemoteDescription=function(){var _this=this;return this._ontrackpoly||(this._ontrackpoly=function(e){e.stream.addEventListener("addtrack",(function(te){var receiver=void 0;receiver=window.RTCPeerConnection.prototype.getReceivers?_this.getReceivers().find((function(r){return r.track&&r.track.id===te.track.id})):{track:te.track};var event=new Event("track");event.track=te.track,event.receiver=receiver,event.transceiver={receiver:receiver},event.streams=[e.stream],_this.dispatchEvent(event)})),e.stream.getTracks().forEach((function(track){var receiver=void 0;receiver=window.RTCPeerConnection.prototype.getReceivers?_this.getReceivers().find((function(r){return r.track&&r.track.id===track.id})):{track:track};var event=new Event("track");event.track=track,event.receiver=receiver,event.transceiver={receiver:receiver},event.streams=[e.stream],_this.dispatchEvent(event)}))},this.addEventListener("addstream",this._ontrackpoly)),origSetRemoteDescription.apply(this,arguments)}}else utils.wrapPeerConnectionEvent(window,"track",(function(e){return e.transceiver||Object.defineProperty(e,"transceiver",{value:{receiver:e.receiver}}),e}))},exports.shimGetSendersWithDtmf=function(window){if("object"===(void 0===window?"undefined":_typeof(window))&&window.RTCPeerConnection&&!("getSenders"in window.RTCPeerConnection.prototype)&&"createDTMFSender"in window.RTCPeerConnection.prototype){var shimSenderWithDtmf=function(pc,track){return{track:track,get dtmf(){return void 0===this._dtmf&&("audio"===track.kind?this._dtmf=pc.createDTMFSender(track):this._dtmf=null),this._dtmf},_pc:pc}};if(!window.RTCPeerConnection.prototype.getSenders){window.RTCPeerConnection.prototype.getSenders=function(){return this._senders=this._senders||[],this._senders.slice()};var origAddTrack=window.RTCPeerConnection.prototype.addTrack;window.RTCPeerConnection.prototype.addTrack=function(track,stream){var sender=origAddTrack.apply(this,arguments);return sender||(sender=shimSenderWithDtmf(this,track),this._senders.push(sender)),sender};var origRemoveTrack=window.RTCPeerConnection.prototype.removeTrack;window.RTCPeerConnection.prototype.removeTrack=function(sender){origRemoveTrack.apply(this,arguments);var idx=this._senders.indexOf(sender);-1!==idx&&this._senders.splice(idx,1)}}var origAddStream=window.RTCPeerConnection.prototype.addStream;window.RTCPeerConnection.prototype.addStream=function(stream){var _this2=this;this._senders=this._senders||[],origAddStream.apply(this,[stream]),stream.getTracks().forEach((function(track){_this2._senders.push(shimSenderWithDtmf(_this2,track))}))};var origRemoveStream=window.RTCPeerConnection.prototype.removeStream;window.RTCPeerConnection.prototype.removeStream=function(stream){var _this3=this;this._senders=this._senders||[],origRemoveStream.apply(this,[stream]),stream.getTracks().forEach((function(track){var sender=_this3._senders.find((function(s){return s.track===track}));sender&&_this3._senders.splice(_this3._senders.indexOf(sender),1)}))}}else if("object"===(void 0===window?"undefined":_typeof(window))&&window.RTCPeerConnection&&"getSenders"in window.RTCPeerConnection.prototype&&"createDTMFSender"in window.RTCPeerConnection.prototype&&window.RTCRtpSender&&!("dtmf"in window.RTCRtpSender.prototype)){var origGetSenders=window.RTCPeerConnection.prototype.getSenders;window.RTCPeerConnection.prototype.getSenders=function(){var _this4=this,senders=origGetSenders.apply(this,[]);return senders.forEach((function(sender){return sender._pc=_this4})),senders},Object.defineProperty(window.RTCRtpSender.prototype,"dtmf",{get:function(){return void 0===this._dtmf&&("audio"===this.track.kind?this._dtmf=this._pc.createDTMFSender(this.track):this._dtmf=null),this._dtmf}})}},exports.shimGetStats=function(window){if(!window.RTCPeerConnection)return;var origGetStats=window.RTCPeerConnection.prototype.getStats;window.RTCPeerConnection.prototype.getStats=function(){var _this5=this,_arguments=Array.prototype.slice.call(arguments),selector=_arguments[0],onSucc=_arguments[1],onErr=_arguments[2];if(arguments.length>0&&"function"==typeof selector)return origGetStats.apply(this,arguments);if(0===origGetStats.length&&(0===arguments.length||"function"!=typeof selector))return origGetStats.apply(this,[]);var fixChromeStats_=function(response){var standardReport={};return response.result().forEach((function(report){var standardStats={id:report.id,timestamp:report.timestamp,type:{localcandidate:"local-candidate",remotecandidate:"remote-candidate"}[report.type]||report.type};report.names().forEach((function(name){standardStats[name]=report.stat(name)})),standardReport[standardStats.id]=standardStats})),standardReport},makeMapStats=function(stats){return new Map(Object.keys(stats).map((function(key){return[key,stats[key]]})))};if(arguments.length>=2){var successCallbackWrapper_=function(response){onSucc(makeMapStats(fixChromeStats_(response)))};return origGetStats.apply(this,[successCallbackWrapper_,selector])}return new Promise((function(resolve,reject){origGetStats.apply(_this5,[function(response){resolve(makeMapStats(fixChromeStats_(response)))},reject])})).then(onSucc,onErr)}},exports.shimSenderReceiverGetStats=function(window){if(!("object"===(void 0===window?"undefined":_typeof(window))&&window.RTCPeerConnection&&window.RTCRtpSender&&window.RTCRtpReceiver))return;if(!("getStats"in window.RTCRtpSender.prototype)){var origGetSenders=window.RTCPeerConnection.prototype.getSenders;origGetSenders&&(window.RTCPeerConnection.prototype.getSenders=function(){var _this6=this,senders=origGetSenders.apply(this,[]);return senders.forEach((function(sender){return sender._pc=_this6})),senders});var origAddTrack=window.RTCPeerConnection.prototype.addTrack;origAddTrack&&(window.RTCPeerConnection.prototype.addTrack=function(){var sender=origAddTrack.apply(this,arguments);return sender._pc=this,sender}),window.RTCRtpSender.prototype.getStats=function(){var sender=this;return this._pc.getStats().then((function(result){return utils.filterStats(result,sender.track,!0)}))}}if(!("getStats"in window.RTCRtpReceiver.prototype)){var origGetReceivers=window.RTCPeerConnection.prototype.getReceivers;origGetReceivers&&(window.RTCPeerConnection.prototype.getReceivers=function(){var _this7=this,receivers=origGetReceivers.apply(this,[]);return receivers.forEach((function(receiver){return receiver._pc=_this7})),receivers}),utils.wrapPeerConnectionEvent(window,"track",(function(e){return e.receiver._pc=e.srcElement,e})),window.RTCRtpReceiver.prototype.getStats=function(){var receiver=this;return this._pc.getStats().then((function(result){return utils.filterStats(result,receiver.track,!1)}))}}if(!("getStats"in window.RTCRtpSender.prototype)||!("getStats"in window.RTCRtpReceiver.prototype))return;var origGetStats=window.RTCPeerConnection.prototype.getStats;window.RTCPeerConnection.prototype.getStats=function(){if(arguments.length>0&&arguments[0]instanceof window.MediaStreamTrack){var track=arguments[0],sender=void 0,receiver=void 0,err=void 0;return this.getSenders().forEach((function(s){s.track===track&&(sender?err=!0:sender=s)})),this.getReceivers().forEach((function(r){return r.track===track&&(receiver?err=!0:receiver=r),r.track===track})),err||sender&&receiver?Promise.reject(new DOMException("There are more than one sender or receiver for the track.","InvalidAccessError")):sender?sender.getStats():receiver?receiver.getStats():Promise.reject(new DOMException("There is no sender or receiver for the track.","InvalidAccessError"))}return origGetStats.apply(this,arguments)}},exports.shimAddTrackRemoveTrackWithNative=shimAddTrackRemoveTrackWithNative,exports.shimAddTrackRemoveTrack=function(window,browserDetails){if(!window.RTCPeerConnection)return;if(window.RTCPeerConnection.prototype.addTrack&&browserDetails.version>=65)return shimAddTrackRemoveTrackWithNative(window);var origGetLocalStreams=window.RTCPeerConnection.prototype.getLocalStreams;window.RTCPeerConnection.prototype.getLocalStreams=function(){var _this11=this,nativeStreams=origGetLocalStreams.apply(this);return this._reverseStreams=this._reverseStreams||{},nativeStreams.map((function(stream){return _this11._reverseStreams[stream.id]}))};var origAddStream=window.RTCPeerConnection.prototype.addStream;window.RTCPeerConnection.prototype.addStream=function(stream){var _this12=this;if(this._streams=this._streams||{},this._reverseStreams=this._reverseStreams||{},stream.getTracks().forEach((function(track){if(_this12.getSenders().find((function(s){return s.track===track})))throw new DOMException("Track already exists.","InvalidAccessError")})),!this._reverseStreams[stream.id]){var newStream=new window.MediaStream(stream.getTracks());this._streams[stream.id]=newStream,this._reverseStreams[newStream.id]=stream,stream=newStream}origAddStream.apply(this,[stream])};var origRemoveStream=window.RTCPeerConnection.prototype.removeStream;function replaceInternalStreamId(pc,description){var sdp=description.sdp;return Object.keys(pc._reverseStreams||[]).forEach((function(internalId){var externalStream=pc._reverseStreams[internalId],internalStream=pc._streams[externalStream.id];sdp=sdp.replace(new RegExp(internalStream.id,"g"),externalStream.id)})),new RTCSessionDescription({type:description.type,sdp:sdp})}function replaceExternalStreamId(pc,description){var sdp=description.sdp;return Object.keys(pc._reverseStreams||[]).forEach((function(internalId){var externalStream=pc._reverseStreams[internalId],internalStream=pc._streams[externalStream.id];sdp=sdp.replace(new RegExp(externalStream.id,"g"),internalStream.id)})),new RTCSessionDescription({type:description.type,sdp:sdp})}window.RTCPeerConnection.prototype.removeStream=function(stream){this._streams=this._streams||{},this._reverseStreams=this._reverseStreams||{},origRemoveStream.apply(this,[this._streams[stream.id]||stream]),delete this._reverseStreams[this._streams[stream.id]?this._streams[stream.id].id:stream.id],delete this._streams[stream.id]},window.RTCPeerConnection.prototype.addTrack=function(track,stream){var _this13=this;if("closed"===this.signalingState)throw new DOMException("The RTCPeerConnection's signalingState is 'closed'.","InvalidStateError");var streams=[].slice.call(arguments,1);if(1!==streams.length||!streams[0].getTracks().find((function(t){return t===track})))throw new DOMException("The adapter.js addTrack polyfill only supports a single stream which is associated with the specified track.","NotSupportedError");var alreadyExists=this.getSenders().find((function(s){return s.track===track}));if(alreadyExists)throw new DOMException("Track already exists.","InvalidAccessError");this._streams=this._streams||{},this._reverseStreams=this._reverseStreams||{};var oldStream=this._streams[stream.id];if(oldStream)oldStream.addTrack(track),Promise.resolve().then((function(){_this13.dispatchEvent(new Event("negotiationneeded"))}));else{var newStream=new window.MediaStream([track]);this._streams[stream.id]=newStream,this._reverseStreams[newStream.id]=stream,this.addStream(newStream)}return this.getSenders().find((function(s){return s.track===track}))},["createOffer","createAnswer"].forEach((function(method){var nativeMethod=window.RTCPeerConnection.prototype[method],methodObj=_defineProperty({},method,(function(){var _this14=this,args=arguments,isLegacyCall=arguments.length&&"function"==typeof arguments[0];return isLegacyCall?nativeMethod.apply(this,[function(description){var desc=replaceInternalStreamId(_this14,description);args[0].apply(null,[desc])},function(err){args[1]&&args[1].apply(null,err)},arguments[2]]):nativeMethod.apply(this,arguments).then((function(description){return replaceInternalStreamId(_this14,description)}))}));window.RTCPeerConnection.prototype[method]=methodObj[method]}));var origSetLocalDescription=window.RTCPeerConnection.prototype.setLocalDescription;window.RTCPeerConnection.prototype.setLocalDescription=function(){return arguments.length&&arguments[0].type?(arguments[0]=replaceExternalStreamId(this,arguments[0]),origSetLocalDescription.apply(this,arguments)):origSetLocalDescription.apply(this,arguments)};var origLocalDescription=Object.getOwnPropertyDescriptor(window.RTCPeerConnection.prototype,"localDescription");Object.defineProperty(window.RTCPeerConnection.prototype,"localDescription",{get:function(){var description=origLocalDescription.get.apply(this);return""===description.type?description:replaceInternalStreamId(this,description)}}),window.RTCPeerConnection.prototype.removeTrack=function(sender){var _this15=this;if("closed"===this.signalingState)throw new DOMException("The RTCPeerConnection's signalingState is 'closed'.","InvalidStateError");if(!sender._pc)throw new DOMException("Argument 1 of RTCPeerConnection.removeTrack does not implement interface RTCRtpSender.","TypeError");if(!(sender._pc===this))throw new DOMException("Sender was not created by this connection.","InvalidAccessError");this._streams=this._streams||{};var stream=void 0;Object.keys(this._streams).forEach((function(streamid){_this15._streams[streamid].getTracks().find((function(track){return sender.track===track}))&&(stream=_this15._streams[streamid])})),stream&&(1===stream.getTracks().length?this.removeStream(this._reverseStreams[stream.id]):stream.removeTrack(sender.track),this.dispatchEvent(new Event("negotiationneeded")))}},exports.shimPeerConnection=function(window,browserDetails){!window.RTCPeerConnection&&window.webkitRTCPeerConnection&&(window.RTCPeerConnection=window.webkitRTCPeerConnection);if(!window.RTCPeerConnection)return;browserDetails.version<53&&["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach((function(method){var nativeMethod=window.RTCPeerConnection.prototype[method],methodObj=_defineProperty({},method,(function(){return arguments[0]=new("addIceCandidate"===method?window.RTCIceCandidate:window.RTCSessionDescription)(arguments[0]),nativeMethod.apply(this,arguments)}));window.RTCPeerConnection.prototype[method]=methodObj[method]}))},exports.fixNegotiationNeeded=function(window,browserDetails){utils.wrapPeerConnectionEvent(window,"negotiationneeded",(function(e){var pc=e.target;if(!(browserDetails.version<72||pc.getConfiguration&&"plan-b"===pc.getConfiguration().sdpSemantics)||"stable"===pc.signalingState)return e}))};var utils=function(obj){if(obj&&obj.__esModule)return obj;var newObj={};if(null!=obj)for(var key in obj)Object.prototype.hasOwnProperty.call(obj,key)&&(newObj[key]=obj[key]);return newObj.default=obj,newObj}(require("../utils.js"));function _defineProperty(obj,key,value){return key in obj?Object.defineProperty(obj,key,{value:value,enumerable:!0,configurable:!0,writable:!0}):obj[key]=value,obj}function shimAddTrackRemoveTrackWithNative(window){window.RTCPeerConnection.prototype.getLocalStreams=function(){var _this8=this;return this._shimmedLocalStreams=this._shimmedLocalStreams||{},Object.keys(this._shimmedLocalStreams).map((function(streamId){return _this8._shimmedLocalStreams[streamId][0]}))};var origAddTrack=window.RTCPeerConnection.prototype.addTrack;window.RTCPeerConnection.prototype.addTrack=function(track,stream){if(!stream)return origAddTrack.apply(this,arguments);this._shimmedLocalStreams=this._shimmedLocalStreams||{};var sender=origAddTrack.apply(this,arguments);return this._shimmedLocalStreams[stream.id]?-1===this._shimmedLocalStreams[stream.id].indexOf(sender)&&this._shimmedLocalStreams[stream.id].push(sender):this._shimmedLocalStreams[stream.id]=[stream,sender],sender};var origAddStream=window.RTCPeerConnection.prototype.addStream;window.RTCPeerConnection.prototype.addStream=function(stream){var _this9=this;this._shimmedLocalStreams=this._shimmedLocalStreams||{},stream.getTracks().forEach((function(track){if(_this9.getSenders().find((function(s){return s.track===track})))throw new DOMException("Track already exists.","InvalidAccessError")}));var existingSenders=this.getSenders();origAddStream.apply(this,arguments);var newSenders=this.getSenders().filter((function(newSender){return-1===existingSenders.indexOf(newSender)}));this._shimmedLocalStreams[stream.id]=[stream].concat(newSenders)};var origRemoveStream=window.RTCPeerConnection.prototype.removeStream;window.RTCPeerConnection.prototype.removeStream=function(stream){return this._shimmedLocalStreams=this._shimmedLocalStreams||{},delete this._shimmedLocalStreams[stream.id],origRemoveStream.apply(this,arguments)};var origRemoveTrack=window.RTCPeerConnection.prototype.removeTrack;window.RTCPeerConnection.prototype.removeTrack=function(sender){var _this10=this;return this._shimmedLocalStreams=this._shimmedLocalStreams||{},sender&&Object.keys(this._shimmedLocalStreams).forEach((function(streamId){var idx=_this10._shimmedLocalStreams[streamId].indexOf(sender);-1!==idx&&_this10._shimmedLocalStreams[streamId].splice(idx,1),1===_this10._shimmedLocalStreams[streamId].length&&delete _this10._shimmedLocalStreams[streamId]})),origRemoveTrack.apply(this,arguments)}}},{"../utils.js":11,"./getdisplaymedia":4,"./getusermedia":5}],4:[function(require,module,exports){Object.defineProperty(exports,"__esModule",{value:!0}),exports.shimGetDisplayMedia=function(window,getSourceId){if(window.navigator.mediaDevices&&"getDisplayMedia"in window.navigator.mediaDevices)return;if(!window.navigator.mediaDevices)return;if("function"!=typeof getSourceId)return void console.error("shimGetDisplayMedia: getSourceId argument is not a function");window.navigator.mediaDevices.getDisplayMedia=function(constraints){return getSourceId(constraints).then((function(sourceId){var widthSpecified=constraints.video&&constraints.video.width,heightSpecified=constraints.video&&constraints.video.height,frameRateSpecified=constraints.video&&constraints.video.frameRate;return constraints.video={mandatory:{chromeMediaSource:"desktop",chromeMediaSourceId:sourceId,maxFrameRate:frameRateSpecified||3}},widthSpecified&&(constraints.video.mandatory.maxWidth=widthSpecified),heightSpecified&&(constraints.video.mandatory.maxHeight=heightSpecified),window.navigator.mediaDevices.getUserMedia(constraints)}))}}},{}],5:[function(require,module,exports){Object.defineProperty(exports,"__esModule",{value:!0});var _typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(obj){return typeof obj}:function(obj){return obj&&"function"==typeof Symbol&&obj.constructor===Symbol&&obj!==Symbol.prototype?"symbol":typeof obj};exports.shimGetUserMedia=function(window,browserDetails){var navigator=window&&window.navigator;if(!navigator.mediaDevices)return;var constraintsToChrome_=function(c){if("object"!==(void 0===c?"undefined":_typeof(c))||c.mandatory||c.optional)return c;var cc={};return Object.keys(c).forEach((function(key){if("require"!==key&&"advanced"!==key&&"mediaSource"!==key){var r="object"===_typeof(c[key])?c[key]:{ideal:c[key]};void 0!==r.exact&&"number"==typeof r.exact&&(r.min=r.max=r.exact);var oldname_=function(prefix,name){return prefix?prefix+name.charAt(0).toUpperCase()+name.slice(1):"deviceId"===name?"sourceId":name};if(void 0!==r.ideal){cc.optional=cc.optional||[];var oc={};"number"==typeof r.ideal?(oc[oldname_("min",key)]=r.ideal,cc.optional.push(oc),(oc={})[oldname_("max",key)]=r.ideal,cc.optional.push(oc)):(oc[oldname_("",key)]=r.ideal,cc.optional.push(oc))}void 0!==r.exact&&"number"!=typeof r.exact?(cc.mandatory=cc.mandatory||{},cc.mandatory[oldname_("",key)]=r.exact):["min","max"].forEach((function(mix){void 0!==r[mix]&&(cc.mandatory=cc.mandatory||{},cc.mandatory[oldname_(mix,key)]=r[mix])}))}})),c.advanced&&(cc.optional=(cc.optional||[]).concat(c.advanced)),cc},shimConstraints_=function(constraints,func){if(browserDetails.version>=61)return func(constraints);if((constraints=JSON.parse(JSON.stringify(constraints)))&&"object"===_typeof(constraints.audio)){var remap=function(obj,a,b){a in obj&&!(b in obj)&&(obj[b]=obj[a],delete obj[a])};remap((constraints=JSON.parse(JSON.stringify(constraints))).audio,"autoGainControl","googAutoGainControl"),remap(constraints.audio,"noiseSuppression","googNoiseSuppression"),constraints.audio=constraintsToChrome_(constraints.audio)}if(constraints&&"object"===_typeof(constraints.video)){var face=constraints.video.facingMode;face=face&&("object"===(void 0===face?"undefined":_typeof(face))?face:{ideal:face});var getSupportedFacingModeLies=browserDetails.version<66;if(face&&("user"===face.exact||"environment"===face.exact||"user"===face.ideal||"environment"===face.ideal)&&(!navigator.mediaDevices.getSupportedConstraints||!navigator.mediaDevices.getSupportedConstraints().facingMode||getSupportedFacingModeLies)){delete constraints.video.facingMode;var matches=void 0;if("environment"===face.exact||"environment"===face.ideal?matches=["back","rear"]:"user"!==face.exact&&"user"!==face.ideal||(matches=["front"]),matches)return navigator.mediaDevices.enumerateDevices().then((function(devices){var dev=(devices=devices.filter((function(d){return"videoinput"===d.kind}))).find((function(d){return matches.some((function(match){return d.label.toLowerCase().includes(match)}))}));return!dev&&devices.length&&matches.includes("back")&&(dev=devices[devices.length-1]),dev&&(constraints.video.deviceId=face.exact?{exact:dev.deviceId}:{ideal:dev.deviceId}),constraints.video=constraintsToChrome_(constraints.video),logging("chrome: "+JSON.stringify(constraints)),func(constraints)}))}constraints.video=constraintsToChrome_(constraints.video)}return logging("chrome: "+JSON.stringify(constraints)),func(constraints)},shimError_=function(e){return browserDetails.version>=64?e:{name:{PermissionDeniedError:"NotAllowedError",PermissionDismissedError:"NotAllowedError",InvalidStateError:"NotAllowedError",DevicesNotFoundError:"NotFoundError",ConstraintNotSatisfiedError:"OverconstrainedError",TrackStartError:"NotReadableError",MediaDeviceFailedDueToShutdown:"NotAllowedError",MediaDeviceKillSwitchOn:"NotAllowedError",TabCaptureError:"AbortError",ScreenCaptureError:"AbortError",DeviceCaptureError:"AbortError"}[e.name]||e.name,message:e.message,constraint:e.constraint||e.constraintName,toString:function(){return this.name+(this.message&&": ")+this.message}}};if(navigator.getUserMedia=function(constraints,onSuccess,onError){shimConstraints_(constraints,(function(c){navigator.webkitGetUserMedia(c,onSuccess,(function(e){onError&&onError(shimError_(e))}))}))}.bind(navigator),navigator.mediaDevices.getUserMedia){var origGetUserMedia=navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices);navigator.mediaDevices.getUserMedia=function(cs){return shimConstraints_(cs,(function(c){return origGetUserMedia(c).then((function(stream){if(c.audio&&!stream.getAudioTracks().length||c.video&&!stream.getVideoTracks().length)throw stream.getTracks().forEach((function(track){track.stop()})),new DOMException("","NotFoundError");return stream}),(function(e){return Promise.reject(shimError_(e))}))}))}}};var logging=function(obj){if(obj&&obj.__esModule)return obj;var newObj={};if(null!=obj)for(var key in obj)Object.prototype.hasOwnProperty.call(obj,key)&&(newObj[key]=obj[key]);return newObj.default=obj,newObj}(require("../utils.js")).log},{"../utils.js":11}],6:[function(require,module,exports){Object.defineProperty(exports,"__esModule",{value:!0});var _typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(obj){return typeof obj}:function(obj){return obj&&"function"==typeof Symbol&&obj.constructor===Symbol&&obj!==Symbol.prototype?"symbol":typeof obj};exports.shimRTCIceCandidate=function(window){if(!window.RTCIceCandidate||window.RTCIceCandidate&&"foundation"in window.RTCIceCandidate.prototype)return;var NativeRTCIceCandidate=window.RTCIceCandidate;window.RTCIceCandidate=function(args){if("object"===(void 0===args?"undefined":_typeof(args))&&args.candidate&&0===args.candidate.indexOf("a=")&&((args=JSON.parse(JSON.stringify(args))).candidate=args.candidate.substr(2)),args.candidate&&args.candidate.length){var nativeCandidate=new NativeRTCIceCandidate(args),parsedCandidate=_sdp2.default.parseCandidate(args.candidate),augmentedCandidate=Object.assign(nativeCandidate,parsedCandidate);return augmentedCandidate.toJSON=function(){return{candidate:augmentedCandidate.candidate,sdpMid:augmentedCandidate.sdpMid,sdpMLineIndex:augmentedCandidate.sdpMLineIndex,usernameFragment:augmentedCandidate.usernameFragment}},augmentedCandidate}return new NativeRTCIceCandidate(args)},window.RTCIceCandidate.prototype=NativeRTCIceCandidate.prototype,utils.wrapPeerConnectionEvent(window,"icecandidate",(function(e){return e.candidate&&Object.defineProperty(e,"candidate",{value:new window.RTCIceCandidate(e.candidate),writable:"false"}),e}))},exports.shimMaxMessageSize=function(window,browserDetails){if(!window.RTCPeerConnection)return;"sctp"in window.RTCPeerConnection.prototype||Object.defineProperty(window.RTCPeerConnection.prototype,"sctp",{get:function(){return void 0===this._sctp?null:this._sctp}});var sctpInDescription=function(description){if(!description||!description.sdp)return!1;var sections=_sdp2.default.splitSections(description.sdp);return sections.shift(),sections.some((function(mediaSection){var mLine=_sdp2.default.parseMLine(mediaSection);return mLine&&"application"===mLine.kind&&-1!==mLine.protocol.indexOf("SCTP")}))},getRemoteFirefoxVersion=function(description){var match=description.sdp.match(/mozilla...THIS_IS_SDPARTA-(\d+)/);if(null===match||match.length<2)return-1;var version=parseInt(match[1],10);return version!=version?-1:version},getCanSendMaxMessageSize=function(remoteIsFirefox){var canSendMaxMessageSize=65536;return"firefox"===browserDetails.browser&&(canSendMaxMessageSize=browserDetails.version<57?-1===remoteIsFirefox?16384:2147483637:browserDetails.version<60?57===browserDetails.version?65535:65536:2147483637),canSendMaxMessageSize},getMaxMessageSize=function(description,remoteIsFirefox){var maxMessageSize=65536;"firefox"===browserDetails.browser&&57===browserDetails.version&&(maxMessageSize=65535);var match=_sdp2.default.matchPrefix(description.sdp,"a=max-message-size:");return match.length>0?maxMessageSize=parseInt(match[0].substr(19),10):"firefox"===browserDetails.browser&&-1!==remoteIsFirefox&&(maxMessageSize=2147483637),maxMessageSize},origSetRemoteDescription=window.RTCPeerConnection.prototype.setRemoteDescription;window.RTCPeerConnection.prototype.setRemoteDescription=function(){if(this._sctp=null,"chrome"===browserDetails.browser&&browserDetails.version>=76){var _getConfiguration=this.getConfiguration(),sdpSemantics=_getConfiguration.sdpSemantics;"plan-b"===sdpSemantics&&Object.defineProperty(this,"sctp",{get:function(){return void 0===this._sctp?null:this._sctp},enumerable:!0,configurable:!0})}if(sctpInDescription(arguments[0])){var isFirefox=getRemoteFirefoxVersion(arguments[0]),canSendMMS=getCanSendMaxMessageSize(isFirefox),remoteMMS=getMaxMessageSize(arguments[0],isFirefox),maxMessageSize=void 0;maxMessageSize=0===canSendMMS&&0===remoteMMS?Number.POSITIVE_INFINITY:0===canSendMMS||0===remoteMMS?Math.max(canSendMMS,remoteMMS):Math.min(canSendMMS,remoteMMS);var sctp={};Object.defineProperty(sctp,"maxMessageSize",{get:function(){return maxMessageSize}}),this._sctp=sctp}return origSetRemoteDescription.apply(this,arguments)}},exports.shimSendThrowTypeError=function(window){if(!window.RTCPeerConnection||!("createDataChannel"in window.RTCPeerConnection.prototype))return;function wrapDcSend(dc,pc){var origDataChannelSend=dc.send;dc.send=function(){var data=arguments[0],length=data.length||data.size||data.byteLength;if("open"===dc.readyState&&pc.sctp&&length>pc.sctp.maxMessageSize)throw new TypeError("Message too large (can send a maximum of "+pc.sctp.maxMessageSize+" bytes)");return origDataChannelSend.apply(dc,arguments)}}var origCreateDataChannel=window.RTCPeerConnection.prototype.createDataChannel;window.RTCPeerConnection.prototype.createDataChannel=function(){var dataChannel=origCreateDataChannel.apply(this,arguments);return wrapDcSend(dataChannel,this),dataChannel},utils.wrapPeerConnectionEvent(window,"datachannel",(function(e){return wrapDcSend(e.channel,e.target),e}))},exports.shimConnectionState=function(window){if(!window.RTCPeerConnection||"connectionState"in window.RTCPeerConnection.prototype)return;var proto=window.RTCPeerConnection.prototype;Object.defineProperty(proto,"connectionState",{get:function(){return{completed:"connected",checking:"connecting"}[this.iceConnectionState]||this.iceConnectionState},enumerable:!0,configurable:!0}),Object.defineProperty(proto,"onconnectionstatechange",{get:function(){return this._onconnectionstatechange||null},set:function(cb){this._onconnectionstatechange&&(this.removeEventListener("connectionstatechange",this._onconnectionstatechange),delete this._onconnectionstatechange),cb&&this.addEventListener("connectionstatechange",this._onconnectionstatechange=cb)},enumerable:!0,configurable:!0}),["setLocalDescription","setRemoteDescription"].forEach((function(method){var origMethod=proto[method];proto[method]=function(){return this._connectionstatechangepoly||(this._connectionstatechangepoly=function(e){var pc=e.target;if(pc._lastConnectionState!==pc.connectionState){pc._lastConnectionState=pc.connectionState;var newEvent=new Event("connectionstatechange",e);pc.dispatchEvent(newEvent)}return e},this.addEventListener("iceconnectionstatechange",this._connectionstatechangepoly)),origMethod.apply(this,arguments)}}))},exports.removeExtmapAllowMixed=function(window,browserDetails){if(!window.RTCPeerConnection)return;if("chrome"===browserDetails.browser&&browserDetails.version>=71)return;if("safari"===browserDetails.browser&&browserDetails.version>=605)return;var nativeSRD=window.RTCPeerConnection.prototype.setRemoteDescription;window.RTCPeerConnection.prototype.setRemoteDescription=function(desc){if(desc&&desc.sdp&&-1!==desc.sdp.indexOf("\na=extmap-allow-mixed")){var sdp=desc.sdp.split("\n").filter((function(line){return"a=extmap-allow-mixed"!==line.trim()})).join("\n");window.RTCSessionDescription&&desc instanceof window.RTCSessionDescription?arguments[0]=new window.RTCSessionDescription({type:desc.type,sdp:sdp}):desc.sdp=sdp}return nativeSRD.apply(this,arguments)}},exports.shimAddIceCandidateNullOrEmpty=function(window,browserDetails){if(!window.RTCPeerConnection||!window.RTCPeerConnection.prototype)return;var nativeAddIceCandidate=window.RTCPeerConnection.prototype.addIceCandidate;if(!nativeAddIceCandidate||0===nativeAddIceCandidate.length)return;window.RTCPeerConnection.prototype.addIceCandidate=function(){return arguments[0]?("chrome"===browserDetails.browser&&browserDetails.version<78||"firefox"===browserDetails.browser&&browserDetails.version<68||"safari"===browserDetails.browser)&&arguments[0]&&""===arguments[0].candidate?Promise.resolve():nativeAddIceCandidate.apply(this,arguments):(arguments[1]&&arguments[1].apply(null),Promise.resolve())}};var obj,_sdp=require("sdp"),_sdp2=(obj=_sdp)&&obj.__esModule?obj:{default:obj},utils=function(obj){if(obj&&obj.__esModule)return obj;var newObj={};if(null!=obj)for(var key in obj)Object.prototype.hasOwnProperty.call(obj,key)&&(newObj[key]=obj[key]);return newObj.default=obj,newObj}(require("./utils"))},{"./utils":11,sdp:12}],7:[function(require,module,exports){Object.defineProperty(exports,"__esModule",{value:!0}),exports.shimGetDisplayMedia=exports.shimGetUserMedia=void 0;var _typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(obj){return typeof obj}:function(obj){return obj&&"function"==typeof Symbol&&obj.constructor===Symbol&&obj!==Symbol.prototype?"symbol":typeof obj},_getusermedia=require("./getusermedia");Object.defineProperty(exports,"shimGetUserMedia",{enumerable:!0,get:function(){return _getusermedia.shimGetUserMedia}});var _getdisplaymedia=require("./getdisplaymedia");Object.defineProperty(exports,"shimGetDisplayMedia",{enumerable:!0,get:function(){return _getdisplaymedia.shimGetDisplayMedia}}),exports.shimOnTrack=function(window){"object"===(void 0===window?"undefined":_typeof(window))&&window.RTCTrackEvent&&"receiver"in window.RTCTrackEvent.prototype&&!("transceiver"in window.RTCTrackEvent.prototype)&&Object.defineProperty(window.RTCTrackEvent.prototype,"transceiver",{get:function(){return{receiver:this.receiver}}})},exports.shimPeerConnection=function(window,browserDetails){if("object"!==(void 0===window?"undefined":_typeof(window))||!window.RTCPeerConnection&&!window.mozRTCPeerConnection)return;!window.RTCPeerConnection&&window.mozRTCPeerConnection&&(window.RTCPeerConnection=window.mozRTCPeerConnection);browserDetails.version<53&&["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach((function(method){var nativeMethod=window.RTCPeerConnection.prototype[method],methodObj=function(obj,key,value){key in obj?Object.defineProperty(obj,key,{value:value,enumerable:!0,configurable:!0,writable:!0}):obj[key]=value;return obj}({},method,(function(){return arguments[0]=new("addIceCandidate"===method?window.RTCIceCandidate:window.RTCSessionDescription)(arguments[0]),nativeMethod.apply(this,arguments)}));window.RTCPeerConnection.prototype[method]=methodObj[method]}));var modernStatsTypes={inboundrtp:"inbound-rtp",outboundrtp:"outbound-rtp",candidatepair:"candidate-pair",localcandidate:"local-candidate",remotecandidate:"remote-candidate"},nativeGetStats=window.RTCPeerConnection.prototype.getStats;window.RTCPeerConnection.prototype.getStats=function(){var _arguments=Array.prototype.slice.call(arguments),selector=_arguments[0],onSucc=_arguments[1],onErr=_arguments[2];return nativeGetStats.apply(this,[selector||null]).then((function(stats){if(browserDetails.version<53&&!onSucc)try{stats.forEach((function(stat){stat.type=modernStatsTypes[stat.type]||stat.type}))}catch(e){if("TypeError"!==e.name)throw e;stats.forEach((function(stat,i){stats.set(i,Object.assign({},stat,{type:modernStatsTypes[stat.type]||stat.type}))}))}return stats})).then(onSucc,onErr)}},exports.shimSenderGetStats=function(window){if("object"!==(void 0===window?"undefined":_typeof(window))||!window.RTCPeerConnection||!window.RTCRtpSender)return;if(window.RTCRtpSender&&"getStats"in window.RTCRtpSender.prototype)return;var origGetSenders=window.RTCPeerConnection.prototype.getSenders;origGetSenders&&(window.RTCPeerConnection.prototype.getSenders=function(){var _this=this,senders=origGetSenders.apply(this,[]);return senders.forEach((function(sender){return sender._pc=_this})),senders});var origAddTrack=window.RTCPeerConnection.prototype.addTrack;origAddTrack&&(window.RTCPeerConnection.prototype.addTrack=function(){var sender=origAddTrack.apply(this,arguments);return sender._pc=this,sender});window.RTCRtpSender.prototype.getStats=function(){return this.track?this._pc.getStats(this.track):Promise.resolve(new Map)}},exports.shimReceiverGetStats=function(window){if("object"!==(void 0===window?"undefined":_typeof(window))||!window.RTCPeerConnection||!window.RTCRtpSender)return;if(window.RTCRtpSender&&"getStats"in window.RTCRtpReceiver.prototype)return;var origGetReceivers=window.RTCPeerConnection.prototype.getReceivers;origGetReceivers&&(window.RTCPeerConnection.prototype.getReceivers=function(){var _this2=this,receivers=origGetReceivers.apply(this,[]);return receivers.forEach((function(receiver){return receiver._pc=_this2})),receivers});utils.wrapPeerConnectionEvent(window,"track",(function(e){return e.receiver._pc=e.srcElement,e})),window.RTCRtpReceiver.prototype.getStats=function(){return this._pc.getStats(this.track)}},exports.shimRemoveStream=function(window){if(!window.RTCPeerConnection||"removeStream"in window.RTCPeerConnection.prototype)return;window.RTCPeerConnection.prototype.removeStream=function(stream){var _this3=this;utils.deprecated("removeStream","removeTrack"),this.getSenders().forEach((function(sender){sender.track&&stream.getTracks().includes(sender.track)&&_this3.removeTrack(sender)}))}},exports.shimRTCDataChannel=function(window){window.DataChannel&&!window.RTCDataChannel&&(window.RTCDataChannel=window.DataChannel)},exports.shimAddTransceiver=function(window){if("object"!==(void 0===window?"undefined":_typeof(window))||!window.RTCPeerConnection)return;var origAddTransceiver=window.RTCPeerConnection.prototype.addTransceiver;origAddTransceiver&&(window.RTCPeerConnection.prototype.addTransceiver=function(){this.setParametersPromises=[];var initParameters=arguments[1],shouldPerformCheck=initParameters&&"sendEncodings"in initParameters;shouldPerformCheck&&initParameters.sendEncodings.forEach((function(encodingParam){if("rid"in encodingParam){if(!/^[a-z0-9]{0,16}$/i.test(encodingParam.rid))throw new TypeError("Invalid RID value provided.")}if("scaleResolutionDownBy"in encodingParam&&!(parseFloat(encodingParam.scaleResolutionDownBy)>=1))throw new RangeError("scale_resolution_down_by must be >= 1.0");if("maxFramerate"in encodingParam&&!(parseFloat(encodingParam.maxFramerate)>=0))throw new RangeError("max_framerate must be >= 0.0")}));var transceiver=origAddTransceiver.apply(this,arguments);if(shouldPerformCheck){var sender=transceiver.sender,params=sender.getParameters();(!("encodings"in params)||1===params.encodings.length&&0===Object.keys(params.encodings[0]).length)&&(params.encodings=initParameters.sendEncodings,sender.sendEncodings=initParameters.sendEncodings,this.setParametersPromises.push(sender.setParameters(params).then((function(){delete sender.sendEncodings})).catch((function(){delete sender.sendEncodings}))))}return transceiver})},exports.shimGetParameters=function(window){if("object"!==(void 0===window?"undefined":_typeof(window))||!window.RTCRtpSender)return;var origGetParameters=window.RTCRtpSender.prototype.getParameters;origGetParameters&&(window.RTCRtpSender.prototype.getParameters=function(){var params=origGetParameters.apply(this,arguments);return"encodings"in params||(params.encodings=[].concat(this.sendEncodings||[{}])),params})},exports.shimCreateOffer=function(window){if("object"!==(void 0===window?"undefined":_typeof(window))||!window.RTCPeerConnection)return;var origCreateOffer=window.RTCPeerConnection.prototype.createOffer;window.RTCPeerConnection.prototype.createOffer=function(){var _this4=this,_arguments2=arguments;return this.setParametersPromises&&this.setParametersPromises.length?Promise.all(this.setParametersPromises).then((function(){return origCreateOffer.apply(_this4,_arguments2)})).finally((function(){_this4.setParametersPromises=[]})):origCreateOffer.apply(this,arguments)}},exports.shimCreateAnswer=function(window){if("object"!==(void 0===window?"undefined":_typeof(window))||!window.RTCPeerConnection)return;var origCreateAnswer=window.RTCPeerConnection.prototype.createAnswer;window.RTCPeerConnection.prototype.createAnswer=function(){var _this5=this,_arguments3=arguments;return this.setParametersPromises&&this.setParametersPromises.length?Promise.all(this.setParametersPromises).then((function(){return origCreateAnswer.apply(_this5,_arguments3)})).finally((function(){_this5.setParametersPromises=[]})):origCreateAnswer.apply(this,arguments)}};var utils=function(obj){if(obj&&obj.__esModule)return obj;var newObj={};if(null!=obj)for(var key in obj)Object.prototype.hasOwnProperty.call(obj,key)&&(newObj[key]=obj[key]);return newObj.default=obj,newObj}(require("../utils"))},{"../utils":11,"./getdisplaymedia":8,"./getusermedia":9}],8:[function(require,module,exports){Object.defineProperty(exports,"__esModule",{value:!0}),exports.shimGetDisplayMedia=function(window,preferredMediaSource){if(window.navigator.mediaDevices&&"getDisplayMedia"in window.navigator.mediaDevices)return;if(!window.navigator.mediaDevices)return;window.navigator.mediaDevices.getDisplayMedia=function(constraints){if(!constraints||!constraints.video){var err=new DOMException("getDisplayMedia without video constraints is undefined");return err.name="NotFoundError",err.code=8,Promise.reject(err)}return!0===constraints.video?constraints.video={mediaSource:preferredMediaSource}:constraints.video.mediaSource=preferredMediaSource,window.navigator.mediaDevices.getUserMedia(constraints)}}},{}],9:[function(require,module,exports){Object.defineProperty(exports,"__esModule",{value:!0});var _typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(obj){return typeof obj}:function(obj){return obj&&"function"==typeof Symbol&&obj.constructor===Symbol&&obj!==Symbol.prototype?"symbol":typeof obj};exports.shimGetUserMedia=function(window,browserDetails){var navigator=window&&window.navigator,MediaStreamTrack=window&&window.MediaStreamTrack;if(navigator.getUserMedia=function(constraints,onSuccess,onError){utils.deprecated("navigator.getUserMedia","navigator.mediaDevices.getUserMedia"),navigator.mediaDevices.getUserMedia(constraints).then(onSuccess,onError)},!(browserDetails.version>55&&"autoGainControl"in navigator.mediaDevices.getSupportedConstraints())){var remap=function(obj,a,b){a in obj&&!(b in obj)&&(obj[b]=obj[a],delete obj[a])},nativeGetUserMedia=navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices);if(navigator.mediaDevices.getUserMedia=function(c){return"object"===(void 0===c?"undefined":_typeof(c))&&"object"===_typeof(c.audio)&&(c=JSON.parse(JSON.stringify(c)),remap(c.audio,"autoGainControl","mozAutoGainControl"),remap(c.audio,"noiseSuppression","mozNoiseSuppression")),nativeGetUserMedia(c)},MediaStreamTrack&&MediaStreamTrack.prototype.getSettings){var nativeGetSettings=MediaStreamTrack.prototype.getSettings;MediaStreamTrack.prototype.getSettings=function(){var obj=nativeGetSettings.apply(this,arguments);return remap(obj,"mozAutoGainControl","autoGainControl"),remap(obj,"mozNoiseSuppression","noiseSuppression"),obj}}if(MediaStreamTrack&&MediaStreamTrack.prototype.applyConstraints){var nativeApplyConstraints=MediaStreamTrack.prototype.applyConstraints;MediaStreamTrack.prototype.applyConstraints=function(c){return"audio"===this.kind&&"object"===(void 0===c?"undefined":_typeof(c))&&(c=JSON.parse(JSON.stringify(c)),remap(c,"autoGainControl","mozAutoGainControl"),remap(c,"noiseSuppression","mozNoiseSuppression")),nativeApplyConstraints.apply(this,[c])}}}};var utils=function(obj){if(obj&&obj.__esModule)return obj;var newObj={};if(null!=obj)for(var key in obj)Object.prototype.hasOwnProperty.call(obj,key)&&(newObj[key]=obj[key]);return newObj.default=obj,newObj}(require("../utils"))},{"../utils":11}],10:[function(require,module,exports){Object.defineProperty(exports,"__esModule",{value:!0});var _typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(obj){return typeof obj}:function(obj){return obj&&"function"==typeof Symbol&&obj.constructor===Symbol&&obj!==Symbol.prototype?"symbol":typeof obj};exports.shimLocalStreamsAPI=function(window){if("object"!==(void 0===window?"undefined":_typeof(window))||!window.RTCPeerConnection)return;"getLocalStreams"in window.RTCPeerConnection.prototype||(window.RTCPeerConnection.prototype.getLocalStreams=function(){return this._localStreams||(this._localStreams=[]),this._localStreams});if(!("addStream"in window.RTCPeerConnection.prototype)){var _addTrack=window.RTCPeerConnection.prototype.addTrack;window.RTCPeerConnection.prototype.addStream=function(stream){var _this=this;this._localStreams||(this._localStreams=[]),this._localStreams.includes(stream)||this._localStreams.push(stream),stream.getAudioTracks().forEach((function(track){return _addTrack.call(_this,track,stream)})),stream.getVideoTracks().forEach((function(track){return _addTrack.call(_this,track,stream)}))},window.RTCPeerConnection.prototype.addTrack=function(track){for(var _this2=this,_len=arguments.length,streams=Array(_len>1?_len-1:0),_key=1;_key<_len;_key++)streams[_key-1]=arguments[_key];return streams&&streams.forEach((function(stream){_this2._localStreams?_this2._localStreams.includes(stream)||_this2._localStreams.push(stream):_this2._localStreams=[stream]})),_addTrack.apply(this,arguments)}}"removeStream"in window.RTCPeerConnection.prototype||(window.RTCPeerConnection.prototype.removeStream=function(stream){var _this3=this;this._localStreams||(this._localStreams=[]);var index=this._localStreams.indexOf(stream);if(-1!==index){this._localStreams.splice(index,1);var tracks=stream.getTracks();this.getSenders().forEach((function(sender){tracks.includes(sender.track)&&_this3.removeTrack(sender)}))}})},exports.shimRemoteStreamsAPI=function(window){if("object"!==(void 0===window?"undefined":_typeof(window))||!window.RTCPeerConnection)return;"getRemoteStreams"in window.RTCPeerConnection.prototype||(window.RTCPeerConnection.prototype.getRemoteStreams=function(){return this._remoteStreams?this._remoteStreams:[]});if(!("onaddstream"in window.RTCPeerConnection.prototype)){Object.defineProperty(window.RTCPeerConnection.prototype,"onaddstream",{get:function(){return this._onaddstream},set:function(f){var _this4=this;this._onaddstream&&(this.removeEventListener("addstream",this._onaddstream),this.removeEventListener("track",this._onaddstreampoly)),this.addEventListener("addstream",this._onaddstream=f),this.addEventListener("track",this._onaddstreampoly=function(e){e.streams.forEach((function(stream){if(_this4._remoteStreams||(_this4._remoteStreams=[]),!_this4._remoteStreams.includes(stream)){_this4._remoteStreams.push(stream);var event=new Event("addstream");event.stream=stream,_this4.dispatchEvent(event)}}))})}});var origSetRemoteDescription=window.RTCPeerConnection.prototype.setRemoteDescription;window.RTCPeerConnection.prototype.setRemoteDescription=function(){var pc=this;return this._onaddstreampoly||this.addEventListener("track",this._onaddstreampoly=function(e){e.streams.forEach((function(stream){if(pc._remoteStreams||(pc._remoteStreams=[]),!(pc._remoteStreams.indexOf(stream)>=0)){pc._remoteStreams.push(stream);var event=new Event("addstream");event.stream=stream,pc.dispatchEvent(event)}}))}),origSetRemoteDescription.apply(pc,arguments)}}},exports.shimCallbacksAPI=function(window){if("object"!==(void 0===window?"undefined":_typeof(window))||!window.RTCPeerConnection)return;var prototype=window.RTCPeerConnection.prototype,origCreateOffer=prototype.createOffer,origCreateAnswer=prototype.createAnswer,setLocalDescription=prototype.setLocalDescription,setRemoteDescription=prototype.setRemoteDescription,addIceCandidate=prototype.addIceCandidate;prototype.createOffer=function(successCallback,failureCallback){var options=arguments.length>=2?arguments[2]:arguments[0],promise=origCreateOffer.apply(this,[options]);return failureCallback?(promise.then(successCallback,failureCallback),Promise.resolve()):promise},prototype.createAnswer=function(successCallback,failureCallback){var options=arguments.length>=2?arguments[2]:arguments[0],promise=origCreateAnswer.apply(this,[options]);return failureCallback?(promise.then(successCallback,failureCallback),Promise.resolve()):promise};var withCallback=function(description,successCallback,failureCallback){var promise=setLocalDescription.apply(this,[description]);return failureCallback?(promise.then(successCallback,failureCallback),Promise.resolve()):promise};prototype.setLocalDescription=withCallback,withCallback=function(description,successCallback,failureCallback){var promise=setRemoteDescription.apply(this,[description]);return failureCallback?(promise.then(successCallback,failureCallback),Promise.resolve()):promise},prototype.setRemoteDescription=withCallback,withCallback=function(candidate,successCallback,failureCallback){var promise=addIceCandidate.apply(this,[candidate]);return failureCallback?(promise.then(successCallback,failureCallback),Promise.resolve()):promise},prototype.addIceCandidate=withCallback},exports.shimGetUserMedia=function(window){var navigator=window&&window.navigator;if(navigator.mediaDevices&&navigator.mediaDevices.getUserMedia){var mediaDevices=navigator.mediaDevices,_getUserMedia=mediaDevices.getUserMedia.bind(mediaDevices);navigator.mediaDevices.getUserMedia=function(constraints){return _getUserMedia(shimConstraints(constraints))}}!navigator.getUserMedia&&navigator.mediaDevices&&navigator.mediaDevices.getUserMedia&&(navigator.getUserMedia=function(constraints,cb,errcb){navigator.mediaDevices.getUserMedia(constraints).then(cb,errcb)}.bind(navigator))},exports.shimConstraints=shimConstraints,exports.shimRTCIceServerUrls=function(window){if(!window.RTCPeerConnection)return;var OrigPeerConnection=window.RTCPeerConnection;window.RTCPeerConnection=function(pcConfig,pcConstraints){if(pcConfig&&pcConfig.iceServers){for(var newIceServers=[],i=0;i<pcConfig.iceServers.length;i++){var server=pcConfig.iceServers[i];!server.hasOwnProperty("urls")&&server.hasOwnProperty("url")?(utils.deprecated("RTCIceServer.url","RTCIceServer.urls"),(server=JSON.parse(JSON.stringify(server))).urls=server.url,delete server.url,newIceServers.push(server)):newIceServers.push(pcConfig.iceServers[i])}pcConfig.iceServers=newIceServers}return new OrigPeerConnection(pcConfig,pcConstraints)},window.RTCPeerConnection.prototype=OrigPeerConnection.prototype,"generateCertificate"in OrigPeerConnection&&Object.defineProperty(window.RTCPeerConnection,"generateCertificate",{get:function(){return OrigPeerConnection.generateCertificate}})},exports.shimTrackEventTransceiver=function(window){"object"===(void 0===window?"undefined":_typeof(window))&&window.RTCTrackEvent&&"receiver"in window.RTCTrackEvent.prototype&&!("transceiver"in window.RTCTrackEvent.prototype)&&Object.defineProperty(window.RTCTrackEvent.prototype,"transceiver",{get:function(){return{receiver:this.receiver}}})},exports.shimCreateOfferLegacy=function(window){var origCreateOffer=window.RTCPeerConnection.prototype.createOffer;window.RTCPeerConnection.prototype.createOffer=function(offerOptions){if(offerOptions){void 0!==offerOptions.offerToReceiveAudio&&(offerOptions.offerToReceiveAudio=!!offerOptions.offerToReceiveAudio);var audioTransceiver=this.getTransceivers().find((function(transceiver){return"audio"===transceiver.receiver.track.kind}));!1===offerOptions.offerToReceiveAudio&&audioTransceiver?"sendrecv"===audioTransceiver.direction?audioTransceiver.setDirection?audioTransceiver.setDirection("sendonly"):audioTransceiver.direction="sendonly":"recvonly"===audioTransceiver.direction&&(audioTransceiver.setDirection?audioTransceiver.setDirection("inactive"):audioTransceiver.direction="inactive"):!0!==offerOptions.offerToReceiveAudio||audioTransceiver||this.addTransceiver("audio"),void 0!==offerOptions.offerToReceiveVideo&&(offerOptions.offerToReceiveVideo=!!offerOptions.offerToReceiveVideo);var videoTransceiver=this.getTransceivers().find((function(transceiver){return"video"===transceiver.receiver.track.kind}));!1===offerOptions.offerToReceiveVideo&&videoTransceiver?"sendrecv"===videoTransceiver.direction?videoTransceiver.setDirection?videoTransceiver.setDirection("sendonly"):videoTransceiver.direction="sendonly":"recvonly"===videoTransceiver.direction&&(videoTransceiver.setDirection?videoTransceiver.setDirection("inactive"):videoTransceiver.direction="inactive"):!0!==offerOptions.offerToReceiveVideo||videoTransceiver||this.addTransceiver("video")}return origCreateOffer.apply(this,arguments)}},exports.shimAudioContext=function(window){if("object"!==(void 0===window?"undefined":_typeof(window))||window.AudioContext)return;window.AudioContext=window.webkitAudioContext};var utils=function(obj){if(obj&&obj.__esModule)return obj;var newObj={};if(null!=obj)for(var key in obj)Object.prototype.hasOwnProperty.call(obj,key)&&(newObj[key]=obj[key]);return newObj.default=obj,newObj}(require("../utils"));function shimConstraints(constraints){return constraints&&void 0!==constraints.video?Object.assign({},constraints,{video:utils.compactObject(constraints.video)}):constraints}},{"../utils":11}],11:[function(require,module,exports){Object.defineProperty(exports,"__esModule",{value:!0});var _typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(obj){return typeof obj}:function(obj){return obj&&"function"==typeof Symbol&&obj.constructor===Symbol&&obj!==Symbol.prototype?"symbol":typeof obj};exports.extractVersion=extractVersion,exports.wrapPeerConnectionEvent=function(window,eventNameToWrap,wrapper){if(!window.RTCPeerConnection)return;var proto=window.RTCPeerConnection.prototype,nativeAddEventListener=proto.addEventListener;proto.addEventListener=function(nativeEventName,cb){if(nativeEventName!==eventNameToWrap)return nativeAddEventListener.apply(this,arguments);var wrappedCallback=function(e){var modifiedEvent=wrapper(e);modifiedEvent&&(cb.handleEvent?cb.handleEvent(modifiedEvent):cb(modifiedEvent))};return this._eventMap=this._eventMap||{},this._eventMap[eventNameToWrap]||(this._eventMap[eventNameToWrap]=new Map),this._eventMap[eventNameToWrap].set(cb,wrappedCallback),nativeAddEventListener.apply(this,[nativeEventName,wrappedCallback])};var nativeRemoveEventListener=proto.removeEventListener;proto.removeEventListener=function(nativeEventName,cb){if(nativeEventName!==eventNameToWrap||!this._eventMap||!this._eventMap[eventNameToWrap])return nativeRemoveEventListener.apply(this,arguments);if(!this._eventMap[eventNameToWrap].has(cb))return nativeRemoveEventListener.apply(this,arguments);var unwrappedCb=this._eventMap[eventNameToWrap].get(cb);return this._eventMap[eventNameToWrap].delete(cb),0===this._eventMap[eventNameToWrap].size&&delete this._eventMap[eventNameToWrap],0===Object.keys(this._eventMap).length&&delete this._eventMap,nativeRemoveEventListener.apply(this,[nativeEventName,unwrappedCb])},Object.defineProperty(proto,"on"+eventNameToWrap,{get:function(){return this["_on"+eventNameToWrap]},set:function(cb){this["_on"+eventNameToWrap]&&(this.removeEventListener(eventNameToWrap,this["_on"+eventNameToWrap]),delete this["_on"+eventNameToWrap]),cb&&this.addEventListener(eventNameToWrap,this["_on"+eventNameToWrap]=cb)},enumerable:!0,configurable:!0})},exports.disableLog=function(bool){if("boolean"!=typeof bool)return new Error("Argument type: "+(void 0===bool?"undefined":_typeof(bool))+". Please use a boolean.");return logDisabled_=bool,bool?"adapter.js logging disabled":"adapter.js logging enabled"},exports.disableWarnings=function(bool){if("boolean"!=typeof bool)return new Error("Argument type: "+(void 0===bool?"undefined":_typeof(bool))+". Please use a boolean.");return deprecationWarnings_=!bool,"adapter.js deprecation warnings "+(bool?"disabled":"enabled")},exports.log=function(){if("object"===("undefined"==typeof window?"undefined":_typeof(window))){if(logDisabled_)return;"undefined"!=typeof console&&"function"==typeof console.log&&console.log.apply(console,arguments)}},exports.deprecated=function(oldMethod,newMethod){if(!deprecationWarnings_)return;console.warn(oldMethod+" is deprecated, please use "+newMethod+" instead.")},exports.detectBrowser=function(window){var result={browser:null,version:null};if(void 0===window||!window.navigator)return result.browser="Not a browser.",result;var navigator=window.navigator;if(navigator.mozGetUserMedia)result.browser="firefox",result.version=extractVersion(navigator.userAgent,/Firefox\/(\d+)\./,1);else if(navigator.webkitGetUserMedia||!1===window.isSecureContext&&window.webkitRTCPeerConnection&&!window.RTCIceGatherer)result.browser="chrome",result.version=extractVersion(navigator.userAgent,/Chrom(e|ium)\/(\d+)\./,2);else{if(!window.RTCPeerConnection||!navigator.userAgent.match(/AppleWebKit\/(\d+)\./))return result.browser="Not a supported browser.",result;result.browser="safari",result.version=extractVersion(navigator.userAgent,/AppleWebKit\/(\d+)\./,1),result.supportsUnifiedPlan=window.RTCRtpTransceiver&&"currentDirection"in window.RTCRtpTransceiver.prototype}return result},exports.compactObject=function compactObject(data){if(!isObject(data))return data;return Object.keys(data).reduce((function(accumulator,key){var isObj=isObject(data[key]),value=isObj?compactObject(data[key]):data[key],isEmptyObject=isObj&&!Object.keys(value).length;return void 0===value||isEmptyObject?accumulator:Object.assign(accumulator,function(obj,key,value){key in obj?Object.defineProperty(obj,key,{value:value,enumerable:!0,configurable:!0,writable:!0}):obj[key]=value;return obj}({},key,value))}),{})},exports.walkStats=walkStats,exports.filterStats=function(result,track,outbound){var streamStatsType=outbound?"outbound-rtp":"inbound-rtp",filteredResult=new Map;if(null===track)return filteredResult;var trackStats=[];return result.forEach((function(value){"track"===value.type&&value.trackIdentifier===track.id&&trackStats.push(value)})),trackStats.forEach((function(trackStat){result.forEach((function(stats){stats.type===streamStatsType&&stats.trackId===trackStat.id&&walkStats(result,stats,filteredResult)}))})),filteredResult};var logDisabled_=!0,deprecationWarnings_=!0;function extractVersion(uastring,expr,pos){var match=uastring.match(expr);return match&&match.length>=pos&&parseInt(match[pos],10)}function isObject(val){return"[object Object]"===Object.prototype.toString.call(val)}function walkStats(stats,base,resultSet){base&&!resultSet.has(base.id)&&(resultSet.set(base.id,base),Object.keys(base).forEach((function(name){name.endsWith("Id")?walkStats(stats,stats.get(base[name]),resultSet):name.endsWith("Ids")&&base[name].forEach((function(id){walkStats(stats,stats.get(id),resultSet)}))})))}},{}],12:[function(require,module,exports){var _typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(obj){return typeof obj}:function(obj){return obj&&"function"==typeof Symbol&&obj.constructor===Symbol&&obj!==Symbol.prototype?"symbol":typeof obj},SDPUtils={generateIdentifier:function(){return Math.random().toString(36).substr(2,10)}};SDPUtils.localCName=SDPUtils.generateIdentifier(),SDPUtils.splitLines=function(blob){return blob.trim().split("\n").map((function(line){return line.trim()}))},SDPUtils.splitSections=function(blob){return blob.split("\nm=").map((function(part,index){return(index>0?"m="+part:part).trim()+"\r\n"}))},SDPUtils.getDescription=function(blob){var sections=SDPUtils.splitSections(blob);return sections&§ions[0]},SDPUtils.getMediaSections=function(blob){var sections=SDPUtils.splitSections(blob);return sections.shift(),sections},SDPUtils.matchPrefix=function(blob,prefix){return SDPUtils.splitLines(blob).filter((function(line){return 0===line.indexOf(prefix)}))},SDPUtils.parseCandidate=function(line){for(var parts=void 0,candidate={foundation:(parts=0===line.indexOf("a=candidate:")?line.substring(12).split(" "):line.substring(10).split(" "))[0],component:{1:"rtp",2:"rtcp"}[parts[1]],protocol:parts[2].toLowerCase(),priority:parseInt(parts[3],10),ip:parts[4],address:parts[4],port:parseInt(parts[5],10),type:parts[7]},i=8;i<parts.length;i+=2)switch(parts[i]){case"raddr":candidate.relatedAddress=parts[i+1];break;case"rport":candidate.relatedPort=parseInt(parts[i+1],10);break;case"tcptype":candidate.tcpType=parts[i+1];break;case"ufrag":candidate.ufrag=parts[i+1],candidate.usernameFragment=parts[i+1];break;default:void 0===candidate[parts[i]]&&(candidate[parts[i]]=parts[i+1])}return candidate},SDPUtils.writeCandidate=function(candidate){var sdp=[];sdp.push(candidate.foundation);var component=candidate.component;"rtp"===component?sdp.push(1):"rtcp"===component?sdp.push(2):sdp.push(component),sdp.push(candidate.protocol.toUpperCase()),sdp.push(candidate.priority),sdp.push(candidate.address||candidate.ip),sdp.push(candidate.port);var type=candidate.type;return sdp.push("typ"),sdp.push(type),"host"!==type&&candidate.relatedAddress&&candidate.relatedPort&&(sdp.push("raddr"),sdp.push(candidate.relatedAddress),sdp.push("rport"),sdp.push(candidate.relatedPort)),candidate.tcpType&&"tcp"===candidate.protocol.toLowerCase()&&(sdp.push("tcptype"),sdp.push(candidate.tcpType)),(candidate.usernameFragment||candidate.ufrag)&&(sdp.push("ufrag"),sdp.push(candidate.usernameFragment||candidate.ufrag)),"candidate:"+sdp.join(" ")},SDPUtils.parseIceOptions=function(line){return line.substr(14).split(" ")},SDPUtils.parseRtpMap=function(line){var parts=line.substr(9).split(" "),parsed={payloadType:parseInt(parts.shift(),10)};return parts=parts[0].split("/"),parsed.name=parts[0],parsed.clockRate=parseInt(parts[1],10),parsed.channels=3===parts.length?parseInt(parts[2],10):1,parsed.numChannels=parsed.channels,parsed},SDPUtils.writeRtpMap=function(codec){var pt=codec.payloadType;void 0!==codec.preferredPayloadType&&(pt=codec.preferredPayloadType);var channels=codec.channels||codec.numChannels||1;return"a=rtpmap:"+pt+" "+codec.name+"/"+codec.clockRate+(1!==channels?"/"+channels:"")+"\r\n"},SDPUtils.parseExtmap=function(line){var parts=line.substr(9).split(" ");return{id:parseInt(parts[0],10),direction:parts[0].indexOf("/")>0?parts[0].split("/")[1]:"sendrecv",uri:parts[1]}},SDPUtils.writeExtmap=function(headerExtension){return"a=extmap:"+(headerExtension.id||headerExtension.preferredId)+(headerExtension.direction&&"sendrecv"!==headerExtension.direction?"/"+headerExtension.direction:"")+" "+headerExtension.uri+"\r\n"},SDPUtils.parseFmtp=function(line){for(var parsed={},kv=void 0,parts=line.substr(line.indexOf(" ")+1).split(";"),j=0;j<parts.length;j++)parsed[(kv=parts[j].trim().split("="))[0].trim()]=kv[1];return parsed},SDPUtils.writeFmtp=function(codec){var line="",pt=codec.payloadType;if(void 0!==codec.preferredPayloadType&&(pt=codec.preferredPayloadType),codec.parameters&&Object.keys(codec.parameters).length){var params=[];Object.keys(codec.parameters).forEach((function(param){codec.parameters[param]?params.push(param+"="+codec.parameters[param]):params.push(param)})),line+="a=fmtp:"+pt+" "+params.join(";")+"\r\n"}return line},SDPUtils.parseRtcpFb=function(line){var parts=line.substr(line.indexOf(" ")+1).split(" ");return{type:parts.shift(),parameter:parts.join(" ")}},SDPUtils.writeRtcpFb=function(codec){var lines="",pt=codec.payloadType;return void 0!==codec.preferredPayloadType&&(pt=codec.preferredPayloadType),codec.rtcpFeedback&&codec.rtcpFeedback.length&&codec.rtcpFeedback.forEach((function(fb){lines+="a=rtcp-fb:"+pt+" "+fb.type+(fb.parameter&&fb.parameter.length?" "+fb.parameter:"")+"\r\n"})),lines},SDPUtils.parseSsrcMedia=function(line){var sp=line.indexOf(" "),parts={ssrc:parseInt(line.substr(7,sp-7),10)},colon=line.indexOf(":",sp);return colon>-1?(parts.attribute=line.substr(sp+1,colon-sp-1),parts.value=line.substr(colon+1)):parts.attribute=line.substr(sp+1),parts},SDPUtils.parseSsrcGroup=function(line){var parts=line.substr(13).split(" ");return{semantics:parts.shift(),ssrcs:parts.map((function(ssrc){return parseInt(ssrc,10)}))}},SDPUtils.getMid=function(mediaSection){var mid=SDPUtils.matchPrefix(mediaSection,"a=mid:")[0];if(mid)return mid.substr(6)},SDPUtils.parseFingerprint=function(line){var parts=line.substr(14).split(" ");return{algorithm:parts[0].toLowerCase(),value:parts[1]}},SDPUtils.getDtlsParameters=function(mediaSection,sessionpart){return{role:"auto",fingerprints:SDPUtils.matchPrefix(mediaSection+sessionpart,"a=fingerprint:").map(SDPUtils.parseFingerprint)}},SDPUtils.writeDtlsParameters=function(params,setupType){var sdp="a=setup:"+setupType+"\r\n";return params.fingerprints.forEach((function(fp){sdp+="a=fingerprint:"+fp.algorithm+" "+fp.value+"\r\n"})),sdp},SDPUtils.parseCryptoLine=function(line){var parts=line.substr(9).split(" ");return{tag:parseInt(parts[0],10),cryptoSuite:parts[1],keyParams:parts[2],sessionParams:parts.slice(3)}},SDPUtils.writeCryptoLine=function(parameters){return"a=crypto:"+parameters.tag+" "+parameters.cryptoSuite+" "+("object"===_typeof(parameters.keyParams)?SDPUtils.writeCryptoKeyParams(parameters.keyParams):parameters.keyParams)+(parameters.sessionParams?" "+parameters.sessionParams.join(" "):"")+"\r\n"},SDPUtils.parseCryptoKeyParams=function(keyParams){if(0!==keyParams.indexOf("inline:"))return null;var parts=keyParams.substr(7).split("|");return{keyMethod:"inline",keySalt:parts[0],lifeTime:parts[1],mkiValue:parts[2]?parts[2].split(":")[0]:void 0,mkiLength:parts[2]?parts[2].split(":")[1]:void 0}},SDPUtils.writeCryptoKeyParams=function(keyParams){return keyParams.keyMethod+":"+keyParams.keySalt+(keyParams.lifeTime?"|"+keyParams.lifeTime:"")+(keyParams.mkiValue&&keyParams.mkiLength?"|"+keyParams.mkiValue+":"+keyParams.mkiLength:"")},SDPUtils.getCryptoParameters=function(mediaSection,sessionpart){return SDPUtils.matchPrefix(mediaSection+sessionpart,"a=crypto:").map(SDPUtils.parseCryptoLine)},SDPUtils.getIceParameters=function(mediaSection,sessionpart){var ufrag=SDPUtils.matchPrefix(mediaSection+sessionpart,"a=ice-ufrag:")[0],pwd=SDPUtils.matchPrefix(mediaSection+sessionpart,"a=ice-pwd:")[0];return ufrag&&pwd?{usernameFragment:ufrag.substr(12),password:pwd.substr(10)}:null},SDPUtils.writeIceParameters=function(params){var sdp="a=ice-ufrag:"+params.usernameFragment+"\r\na=ice-pwd:"+params.password+"\r\n";return params.iceLite&&(sdp+="a=ice-lite\r\n"),sdp},SDPUtils.parseRtpParameters=function(mediaSection){for(var description={codecs:[],headerExtensions:[],fecMechanisms:[],rtcp:[]},mline=SDPUtils.splitLines(mediaSection)[0].split(" "),i=3;i<mline.length;i++){var pt=mline[i],rtpmapline=SDPUtils.matchPrefix(mediaSection,"a=rtpmap:"+pt+" ")[0];if(rtpmapline){var codec=SDPUtils.parseRtpMap(rtpmapline),fmtps=SDPUtils.matchPrefix(mediaSection,"a=fmtp:"+pt+" ");switch(codec.parameters=fmtps.length?SDPUtils.parseFmtp(fmtps[0]):{},codec.rtcpFeedback=SDPUtils.matchPrefix(mediaSection,"a=rtcp-fb:"+pt+" ").map(SDPUtils.parseRtcpFb),description.codecs.push(codec),codec.name.toUpperCase()){case"RED":case"ULPFEC":description.fecMechanisms.push(codec.name.toUpperCase())}}}return SDPUtils.matchPrefix(mediaSection,"a=extmap:").forEach((function(line){description.headerExtensions.push(SDPUtils.parseExtmap(line))})),description},SDPUtils.writeRtpDescription=function(kind,caps){var sdp="";sdp+="m="+kind+" ",sdp+=caps.codecs.length>0?"9":"0",sdp+=" UDP/TLS/RTP/SAVPF ",sdp+=caps.codecs.map((function(codec){return void 0!==codec.preferredPayloadType?codec.preferredPayloadType:codec.payloadType})).join(" ")+"\r\n",sdp+="c=IN IP4 0.0.0.0\r\n",sdp+="a=rtcp:9 IN IP4 0.0.0.0\r\n",caps.codecs.forEach((function(codec){sdp+=SDPUtils.writeRtpMap(codec),sdp+=SDPUtils.writeFmtp(codec),sdp+=SDPUtils.writeRtcpFb(codec)}));var maxptime=0;return caps.codecs.forEach((function(codec){codec.maxptime>maxptime&&(maxptime=codec.maxptime)})),maxptime>0&&(sdp+="a=maxptime:"+maxptime+"\r\n"),caps.headerExtensions&&caps.headerExtensions.forEach((function(extension){sdp+=SDPUtils.writeExtmap(extension)})),sdp},SDPUtils.parseRtpEncodingParameters=function(mediaSection){var encodingParameters=[],description=SDPUtils.parseRtpParameters(mediaSection),hasRed=-1!==description.fecMechanisms.indexOf("RED"),hasUlpfec=-1!==description.fecMechanisms.indexOf("ULPFEC"),ssrcs=SDPUtils.matchPrefix(mediaSection,"a=ssrc:").map((function(line){return SDPUtils.parseSsrcMedia(line)})).filter((function(parts){return"cname"===parts.attribute})),primarySsrc=ssrcs.length>0&&ssrcs[0].ssrc,secondarySsrc=void 0,flows=SDPUtils.matchPrefix(mediaSection,"a=ssrc-group:FID").map((function(line){return line.substr(17).split(" ").map((function(part){return parseInt(part,10)}))}));flows.length>0&&flows[0].length>1&&flows[0][0]===primarySsrc&&(secondarySsrc=flows[0][1]),description.codecs.forEach((function(codec){if("RTX"===codec.name.toUpperCase()&&codec.parameters.apt){var encParam={ssrc:primarySsrc,codecPayloadType:parseInt(codec.parameters.apt,10)};primarySsrc&&secondarySsrc&&(encParam.rtx={ssrc:secondarySsrc}),encodingParameters.push(encParam),hasRed&&((encParam=JSON.parse(JSON.stringify(encParam))).fec={ssrc:primarySsrc,mechanism:hasUlpfec?"red+ulpfec":"red"},encodingParameters.push(encParam))}})),0===encodingParameters.length&&primarySsrc&&encodingParameters.push({ssrc:primarySsrc});var bandwidth=SDPUtils.matchPrefix(mediaSection,"b=");return bandwidth.length&&(bandwidth=0===bandwidth[0].indexOf("b=TIAS:")?parseInt(bandwidth[0].substr(7),10):0===bandwidth[0].indexOf("b=AS:")?1e3*parseInt(bandwidth[0].substr(5),10)*.95-16e3:void 0,encodingParameters.forEach((function(params){params.maxBitrate=bandwidth}))),encodingParameters},SDPUtils.parseRtcpParameters=function(mediaSection){var rtcpParameters={},remoteSsrc=SDPUtils.matchPrefix(mediaSection,"a=ssrc:").map((function(line){return SDPUtils.parseSsrcMedia(line)})).filter((function(obj){return"cname"===obj.attribute}))[0];remoteSsrc&&(rtcpParameters.cname=remoteSsrc.value,rtcpParameters.ssrc=remoteSsrc.ssrc);var rsize=SDPUtils.matchPrefix(mediaSection,"a=rtcp-rsize");rtcpParameters.reducedSize=rsize.length>0,rtcpParameters.compound=0===rsize.length;var mux=SDPUtils.matchPrefix(mediaSection,"a=rtcp-mux");return rtcpParameters.mux=mux.length>0,rtcpParameters},SDPUtils.writeRtcpParameters=function(rtcpParameters){var sdp="";return rtcpParameters.reducedSize&&(sdp+="a=rtcp-rsize\r\n"),rtcpParameters.mux&&(sdp+="a=rtcp-mux\r\n"),void 0!==rtcpParameters.ssrc&&rtcpParameters.cname&&(sdp+="a=ssrc:"+rtcpParameters.ssrc+" cname:"+rtcpParameters.cname+"\r\n"),sdp},SDPUtils.parseMsid=function(mediaSection){var parts=void 0,spec=SDPUtils.matchPrefix(mediaSection,"a=msid:");if(1===spec.length)return{stream:(parts=spec[0].substr(7).split(" "))[0],track:parts[1]};var planB=SDPUtils.matchPrefix(mediaSection,"a=ssrc:").map((function(line){return SDPUtils.parseSsrcMedia(line)})).filter((function(msidParts){return"msid"===msidParts.attribute}));return planB.length>0?{stream:(parts=planB[0].value.split(" "))[0],track:parts[1]}:void 0},SDPUtils.parseSctpDescription=function(mediaSection){var mline=SDPUtils.parseMLine(mediaSection),maxSizeLine=SDPUtils.matchPrefix(mediaSection,"a=max-message-size:"),maxMessageSize=void 0;maxSizeLine.length>0&&(maxMessageSize=parseInt(maxSizeLine[0].substr(19),10)),isNaN(maxMessageSize)&&(maxMessageSize=65536);var sctpPort=SDPUtils.matchPrefix(mediaSection,"a=sctp-port:");if(sctpPort.length>0)return{port:parseInt(sctpPort[0].substr(12),10),protocol:mline.fmt,maxMessageSize:maxMessageSize};var sctpMapLines=SDPUtils.matchPrefix(mediaSection,"a=sctpmap:");if(sctpMapLines.length>0){var parts=sctpMapLines[0].substr(10).split(" ");return{port:parseInt(parts[0],10),protocol:parts[1],maxMessageSize:maxMessageSize}}},SDPUtils.writeSctpDescription=function(media,sctp){var output=[];return output="DTLS/SCTP"!==media.protocol?["m="+media.kind+" 9 "+media.protocol+" "+sctp.protocol+"\r\n","c=IN IP4 0.0.0.0\r\n","a=sctp-port:"+sctp.port+"\r\n"]:["m="+media.kind+" 9 "+media.protocol+" "+sctp.port+"\r\n","c=IN IP4 0.0.0.0\r\n","a=sctpmap:"+sctp.port+" "+sctp.protocol+" 65535\r\n"],void 0!==sctp.maxMessageSize&&output.push("a=max-message-size:"+sctp.maxMessageSize+"\r\n"),output.join("")},SDPUtils.generateSessionId=function(){return Math.random().toString().substr(2,21)},SDPUtils.writeSessionBoilerplate=function(sessId,sessVer,sessUser){var version=void 0!==sessVer?sessVer:2;return"v=0\r\no="+(sessUser||"thisisadapterortc")+" "+(sessId||SDPUtils.generateSessionId())+" "+version+" IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\n"},SDPUtils.getDirection=function(mediaSection,sessionpart){for(var lines=SDPUtils.splitLines(mediaSection),i=0;i<lines.length;i++)switch(lines[i]){case"a=sendrecv":case"a=sendonly":case"a=recvonly":case"a=inactive":return lines[i].substr(2)}return sessionpart?SDPUtils.getDirection(sessionpart):"sendrecv"},SDPUtils.getKind=function(mediaSection){return SDPUtils.splitLines(mediaSection)[0].split(" ")[0].substr(2)},SDPUtils.isRejected=function(mediaSection){return"0"===mediaSection.split(" ",2)[1]},SDPUtils.parseMLine=function(mediaSection){var parts=SDPUtils.splitLines(mediaSection)[0].substr(2).split(" ");return{kind:parts[0],port:parseInt(parts[1],10),protocol:parts[2],fmt:parts.slice(3).join(" ")}},SDPUtils.parseOLine=function(mediaSection){var parts=SDPUtils.matchPrefix(mediaSection,"o=")[0].substr(2).split(" ");return{username:parts[0],sessionId:parts[1],sessionVersion:parseInt(parts[2],10),netType:parts[3],addressType:parts[4],address:parts[5]}},SDPUtils.isValidSDP=function(blob){if("string"!=typeof blob||0===blob.length)return!1;for(var lines=SDPUtils.splitLines(blob),i=0;i<lines.length;i++)if(lines[i].length<2||"="!==lines[i].charAt(1))return!1;return!0},"object"===(void 0===module?"undefined":_typeof(module))&&(module.exports=SDPUtils)},{}]},{},[1])(1)}));
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