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adapter.min.js
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addblockmodal.min.js
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chart_output_base.min.js
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chartjs-lazy.min.js
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chartjs.min.js
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checkbox-toggleall.min.js
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drawer.min.js
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loadingicon.min.js
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modal.min.js
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modal_factory.min.js
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modal_registry.min.js
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modal_save_cancel.min.js
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mustache.min.js
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network.min.js
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network.min.js.map
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normalise.min.js
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notification.min.js
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notification.min.js.map
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page_global.min.js
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paged_content_pages.min.js
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sessionstorage.min.js
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showhidesettings.min.js
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templates.min.js
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yui.min.js
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Code Editor : adapter.min.js
function _typeof2(obj){return _typeof2="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},_typeof2(obj)}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: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,shimEdge:!0,shimSafari:!0},logging=utils.log,browserDetails=utils.detectBrowser(window),adapter={browserDetails:browserDetails,commonShim:commonShim,extractVersion:utils.extractVersion,disableLog:utils.disableLog,disableWarnings:utils.disableWarnings};switch(browserDetails.browser){case"chrome":if(!chromeShim||!chromeShim.shimPeerConnection||!options.shimChrome)return logging("Chrome shim is not included in this adapter release."),adapter;logging("adapter.js shimming chrome."),adapter.browserShim=chromeShim,chromeShim.shimGetUserMedia(window),chromeShim.shimMediaStream(window),chromeShim.shimPeerConnection(window),chromeShim.shimOnTrack(window),chromeShim.shimAddTrackRemoveTrack(window),chromeShim.shimGetSendersWithDtmf(window),chromeShim.shimGetStats(window),chromeShim.shimSenderReceiverGetStats(window),chromeShim.fixNegotiationNeeded(window),commonShim.shimRTCIceCandidate(window),commonShim.shimConnectionState(window),commonShim.shimMaxMessageSize(window),commonShim.shimSendThrowTypeError(window),commonShim.removeAllowExtmapMixed(window);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,firefoxShim.shimGetUserMedia(window),firefoxShim.shimPeerConnection(window),firefoxShim.shimOnTrack(window),firefoxShim.shimRemoveStream(window),firefoxShim.shimSenderGetStats(window),firefoxShim.shimReceiverGetStats(window),firefoxShim.shimRTCDataChannel(window),firefoxShim.shimAddTransceiver(window),firefoxShim.shimCreateOffer(window),firefoxShim.shimCreateAnswer(window),commonShim.shimRTCIceCandidate(window),commonShim.shimConnectionState(window),commonShim.shimMaxMessageSize(window),commonShim.shimSendThrowTypeError(window);break;case"edge":if(!edgeShim||!edgeShim.shimPeerConnection||!options.shimEdge)return logging("MS edge shim is not included in this adapter release."),adapter;logging("adapter.js shimming edge."),adapter.browserShim=edgeShim,edgeShim.shimGetUserMedia(window),edgeShim.shimGetDisplayMedia(window),edgeShim.shimPeerConnection(window),edgeShim.shimReplaceTrack(window),commonShim.shimMaxMessageSize(window),commonShim.shimSendThrowTypeError(window);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,safariShim.shimRTCIceServerUrls(window),safariShim.shimCreateOfferLegacy(window),safariShim.shimCallbacksAPI(window),safariShim.shimLocalStreamsAPI(window),safariShim.shimRemoteStreamsAPI(window),safariShim.shimTrackEventTransceiver(window),safariShim.shimGetUserMedia(window),commonShim.shimRTCIceCandidate(window),commonShim.shimMaxMessageSize(window),commonShim.shimSendThrowTypeError(window),commonShim.removeAllowExtmapMixed(window);break;default:logging("Unsupported browser!")}return adapter};var utils=_interopRequireWildcard(require("./utils")),chromeShim=_interopRequireWildcard(require("./chrome/chrome_shim")),edgeShim=_interopRequireWildcard(require("./edge/edge_shim")),firefoxShim=_interopRequireWildcard(require("./firefox/firefox_shim")),safariShim=_interopRequireWildcard(require("./safari/safari_shim")),commonShim=_interopRequireWildcard(require("./common_shim"));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,"./edge/edge_shim":7,"./firefox/firefox_shim":11,"./safari/safari_shim":14,"./utils":15}],3:[function(require,module,exports){Object.defineProperty(exports,"__esModule",{value:!0}),exports.shimGetDisplayMedia=exports.shimGetUserMedia=void 0;var _typeof="function"==typeof Symbol&&"symbol"===_typeof2(Symbol.iterator)?function(obj){return _typeof2(obj)}:function(obj){return obj&&"function"==typeof Symbol&&obj.constructor===Symbol&&obj!==Symbol.prototype?"symbol":_typeof2(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){if(!window.RTCPeerConnection)return;var browserDetails=utils.detectBrowser(window);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){var browserDetails=utils.detectBrowser(window);!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]}));var nativeAddIceCandidate=window.RTCPeerConnection.prototype.addIceCandidate;window.RTCPeerConnection.prototype.addIceCandidate=function(){return arguments[0]?browserDetails.version<78&&arguments[0]&&""===arguments[0].candidate?Promise.resolve():nativeAddIceCandidate.apply(this,arguments):(arguments[1]&&arguments[1].apply(null),Promise.resolve())}},exports.fixNegotiationNeeded=function(window){utils.wrapPeerConnectionEvent(window,"negotiationneeded",(function(e){if("stable"===e.target.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":15,"./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"===_typeof2(Symbol.iterator)?function(obj){return _typeof2(obj)}:function(obj){return obj&&"function"==typeof Symbol&&obj.constructor===Symbol&&obj!==Symbol.prototype?"symbol":_typeof2(obj)};exports.shimGetUserMedia=function(window){var navigator=window&&window.navigator;if(!navigator.mediaDevices)return;var browserDetails=utils.detectBrowser(window),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 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"));var logging=utils.log},{"../utils.js":15}],6:[function(require,module,exports){Object.defineProperty(exports,"__esModule",{value:!0});var _typeof="function"==typeof Symbol&&"symbol"===_typeof2(Symbol.iterator)?function(obj){return _typeof2(obj)}:function(obj){return obj&&"function"==typeof Symbol&&obj.constructor===Symbol&&obj!==Symbol.prototype?"symbol":_typeof2(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){if(!window.RTCPeerConnection)return;var browserDetails=utils.detectBrowser(window);"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.removeAllowExtmapMixed=function(window){if(!window.RTCPeerConnection)return;var browserDetails=utils.detectBrowser(window);if("chrome"===browserDetails.browser&&browserDetails.version>=71)return;var nativeSRD=window.RTCPeerConnection.prototype.setRemoteDescription;window.RTCPeerConnection.prototype.setRemoteDescription=function(desc){return desc&&desc.sdp&&-1!==desc.sdp.indexOf("\na=extmap-allow-mixed")&&(desc.sdp=desc.sdp.split("\n").filter((function(line){return"a=extmap-allow-mixed"!==line.trim()})).join("\n")),nativeSRD.apply(this,arguments)}};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":15,sdp:17}],7:[function(require,module,exports){Object.defineProperty(exports,"__esModule",{value:!0}),exports.shimGetDisplayMedia=exports.shimGetUserMedia=void 0;var _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.shimPeerConnection=function(window){var browserDetails=utils.detectBrowser(window);if(window.RTCIceGatherer&&(window.RTCIceCandidate||(window.RTCIceCandidate=function(args){return args}),window.RTCSessionDescription||(window.RTCSessionDescription=function(args){return args}),browserDetails.version<15025)){var origMSTEnabled=Object.getOwnPropertyDescriptor(window.MediaStreamTrack.prototype,"enabled");Object.defineProperty(window.MediaStreamTrack.prototype,"enabled",{set:function(value){origMSTEnabled.set.call(this,value);var ev=new Event("enabled");ev.enabled=value,this.dispatchEvent(ev)}})}window.RTCRtpSender&&!("dtmf"in window.RTCRtpSender.prototype)&&Object.defineProperty(window.RTCRtpSender.prototype,"dtmf",{get:function(){return void 0===this._dtmf&&("audio"===this.track.kind?this._dtmf=new window.RTCDtmfSender(this):"video"===this.track.kind&&(this._dtmf=null)),this._dtmf}});window.RTCDtmfSender&&!window.RTCDTMFSender&&(window.RTCDTMFSender=window.RTCDtmfSender);var RTCPeerConnectionShim=(0,_rtcpeerconnectionShim2.default)(window,browserDetails.version);window.RTCPeerConnection=function(config){return config&&config.iceServers&&(config.iceServers=(0,_filtericeservers.filterIceServers)(config.iceServers,browserDetails.version),utils.log("ICE servers after filtering:",config.iceServers)),new RTCPeerConnectionShim(config)},window.RTCPeerConnection.prototype=RTCPeerConnectionShim.prototype},exports.shimReplaceTrack=function(window){window.RTCRtpSender&&!("replaceTrack"in window.RTCRtpSender.prototype)&&(window.RTCRtpSender.prototype.replaceTrack=window.RTCRtpSender.prototype.setTrack)};var 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")),_filtericeservers=require("./filtericeservers"),_rtcpeerconnectionShim=require("rtcpeerconnection-shim"),_rtcpeerconnectionShim2=(obj=_rtcpeerconnectionShim)&&obj.__esModule?obj:{default:obj}},{"../utils":15,"./filtericeservers":8,"./getdisplaymedia":9,"./getusermedia":10,"rtcpeerconnection-shim":16}],8:[function(require,module,exports){Object.defineProperty(exports,"__esModule",{value:!0}),exports.filterIceServers=function(iceServers,edgeVersion){var hasTurn=!1;return(iceServers=JSON.parse(JSON.stringify(iceServers))).filter((function(server){if(server&&(server.urls||server.url)){var urls=server.urls||server.url;server.url&&!server.urls&&utils.deprecated("RTCIceServer.url","RTCIceServer.urls");var isString="string"==typeof urls;return isString&&(urls=[urls]),urls=urls.filter((function(url){if(0===url.indexOf("stun:"))return!1;var validTurn=url.startsWith("turn")&&!url.startsWith("turn:[")&&url.includes("transport=udp");return validTurn&&!hasTurn?(hasTurn=!0,!0):validTurn&&!hasTurn})),delete server.url,server.urls=isString?urls[0]:urls,!!urls.length}}))};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":15}],9:[function(require,module,exports){Object.defineProperty(exports,"__esModule",{value:!0}),exports.shimGetDisplayMedia=function(window){if(!("getDisplayMedia"in window.navigator))return;if(!window.navigator.mediaDevices)return;if(window.navigator.mediaDevices&&"getDisplayMedia"in window.navigator.mediaDevices)return;window.navigator.mediaDevices.getDisplayMedia=window.navigator.getDisplayMedia.bind(window.navigator)}},{}],10:[function(require,module,exports){Object.defineProperty(exports,"__esModule",{value:!0}),exports.shimGetUserMedia=function(window){var navigator=window&&window.navigator,origGetUserMedia=navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices);navigator.mediaDevices.getUserMedia=function(c){return origGetUserMedia(c).catch((function(e){return Promise.reject(function(e){return{name:{PermissionDeniedError:"NotAllowedError"}[e.name]||e.name,message:e.message,constraint:e.constraint,toString:function(){return this.name}}}(e))}))}}},{}],11:[function(require,module,exports){Object.defineProperty(exports,"__esModule",{value:!0}),exports.shimGetDisplayMedia=exports.shimGetUserMedia=void 0;var _typeof="function"==typeof Symbol&&"symbol"===_typeof2(Symbol.iterator)?function(obj){return _typeof2(obj)}:function(obj){return obj&&"function"==typeof Symbol&&obj.constructor===Symbol&&obj!==Symbol.prototype?"symbol":_typeof2(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){var browserDetails=utils.detectBrowser(window);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]}));if(browserDetails.version<68){var nativeAddIceCandidate=window.RTCPeerConnection.prototype.addIceCandidate;window.RTCPeerConnection.prototype.addIceCandidate=function(){return arguments[0]?arguments[0]&&""===arguments[0].candidate?Promise.resolve():nativeAddIceCandidate.apply(this,arguments):(arguments[1]&&arguments[1].apply(null),Promise.resolve())}}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||(params.encodings=initParameters.sendEncodings,this.setParametersPromises.push(sender.setParameters(params).catch((function(){}))))}return transceiver})},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":15,"./getdisplaymedia":12,"./getusermedia":13}],12:[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)}}},{}],13:[function(require,module,exports){Object.defineProperty(exports,"__esModule",{value:!0});var _typeof="function"==typeof Symbol&&"symbol"===_typeof2(Symbol.iterator)?function(obj){return _typeof2(obj)}:function(obj){return obj&&"function"==typeof Symbol&&obj.constructor===Symbol&&obj!==Symbol.prototype?"symbol":_typeof2(obj)};exports.shimGetUserMedia=function(window){var browserDetails=utils.detectBrowser(window),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":15}],14:[function(require,module,exports){Object.defineProperty(exports,"__esModule",{value:!0});var _typeof="function"==typeof Symbol&&"symbol"===_typeof2(Symbol.iterator)?function(obj){return _typeof2(obj)}:function(obj){return obj&&"function"==typeof Symbol&&obj.constructor===Symbol&&obj!==Symbol.prototype?"symbol":_typeof2(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){var stream=arguments[1];return stream&&(this._localStreams?this._localStreams.includes(stream)||this._localStreams.push(stream):this._localStreams=[stream]),_addTrack.apply(this,arguments)}}"removeStream"in window.RTCPeerConnection.prototype||(window.RTCPeerConnection.prototype.removeStream=function(stream){var _this2=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)&&_this2.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 _this3=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(_this3._remoteStreams||(_this3._remoteStreams=[]),!_this3._remoteStreams.includes(stream)){_this3._remoteStreams.push(stream);var event=new Event("addstream");event.stream=stream,_this3.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){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 window.RTCPeerConnection&&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)}};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":15}],15:[function(require,module,exports){Object.defineProperty(exports,"__esModule",{value:!0});var _typeof="function"==typeof Symbol&&"symbol"===_typeof2(Symbol.iterator)?function(obj){return _typeof2(obj)}:function(obj){return obj&&"function"==typeof Symbol&&obj.constructor===Symbol&&obj!==Symbol.prototype?"symbol":_typeof2(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(modifiedEvent)};return this._eventMap=this._eventMap||{},this._eventMap[cb]=wrappedCallback,nativeAddEventListener.apply(this,[nativeEventName,wrappedCallback])};var nativeRemoveEventListener=proto.removeEventListener;proto.removeEventListener=function(nativeEventName,cb){if(nativeEventName!==eventNameToWrap||!this._eventMap||!this._eventMap[cb])return nativeRemoveEventListener.apply(this,arguments);var unwrappedCb=this._eventMap[cb];return delete this._eventMap[cb],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 navigator=window.navigator,result={browser:null,version:null};if(void 0===window||!window.navigator)return result.browser="Not a browser.",result;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(navigator.mediaDevices&&navigator.userAgent.match(/Edge\/(\d+).(\d+)$/))result.browser="edge",result.version=extractVersion(navigator.userAgent,/Edge\/(\d+).(\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)}))})))}},{}],16:[function(require,module,exports){var SDPUtils=require("sdp");function writeMediaSection(transceiver,caps,type,stream,dtlsRole){var sdp=SDPUtils.writeRtpDescription(transceiver.kind,caps);if(sdp+=SDPUtils.writeIceParameters(transceiver.iceGatherer.getLocalParameters()),sdp+=SDPUtils.writeDtlsParameters(transceiver.dtlsTransport.getLocalParameters(),"offer"===type?"actpass":dtlsRole||"active"),sdp+="a=mid:"+transceiver.mid+"\r\n",transceiver.rtpSender&&transceiver.rtpReceiver?sdp+="a=sendrecv\r\n":transceiver.rtpSender?sdp+="a=sendonly\r\n":transceiver.rtpReceiver?sdp+="a=recvonly\r\n":sdp+="a=inactive\r\n",transceiver.rtpSender){var trackId=transceiver.rtpSender._initialTrackId||transceiver.rtpSender.track.id;transceiver.rtpSender._initialTrackId=trackId;var msid="msid:"+(stream?stream.id:"-")+" "+trackId+"\r\n";sdp+="a="+msid,sdp+="a=ssrc:"+transceiver.sendEncodingParameters[0].ssrc+" "+msid,transceiver.sendEncodingParameters[0].rtx&&(sdp+="a=ssrc:"+transceiver.sendEncodingParameters[0].rtx.ssrc+" "+msid,sdp+="a=ssrc-group:FID "+transceiver.sendEncodingParameters[0].ssrc+" "+transceiver.sendEncodingParameters[0].rtx.ssrc+"\r\n")}return sdp+="a=ssrc:"+transceiver.sendEncodingParameters[0].ssrc+" cname:"+SDPUtils.localCName+"\r\n",transceiver.rtpSender&&transceiver.sendEncodingParameters[0].rtx&&(sdp+="a=ssrc:"+transceiver.sendEncodingParameters[0].rtx.ssrc+" cname:"+SDPUtils.localCName+"\r\n"),sdp}function getCommonCapabilities(localCapabilities,remoteCapabilities){var commonCapabilities={codecs:[],headerExtensions:[],fecMechanisms:[]},findCodecByPayloadType=function(pt,codecs){pt=parseInt(pt,10);for(var i=0;i<codecs.length;i++)if(codecs[i].payloadType===pt||codecs[i].preferredPayloadType===pt)return codecs[i]},rtxCapabilityMatches=function(lRtx,rRtx,lCodecs,rCodecs){var lCodec=findCodecByPayloadType(lRtx.parameters.apt,lCodecs),rCodec=findCodecByPayloadType(rRtx.parameters.apt,rCodecs);return lCodec&&rCodec&&lCodec.name.toLowerCase()===rCodec.name.toLowerCase()};return localCapabilities.codecs.forEach((function(lCodec){for(var i=0;i<remoteCapabilities.codecs.length;i++){var rCodec=remoteCapabilities.codecs[i];if(lCodec.name.toLowerCase()===rCodec.name.toLowerCase()&&lCodec.clockRate===rCodec.clockRate){if("rtx"===lCodec.name.toLowerCase()&&lCodec.parameters&&rCodec.parameters.apt&&!rtxCapabilityMatches(lCodec,rCodec,localCapabilities.codecs,remoteCapabilities.codecs))continue;(rCodec=JSON.parse(JSON.stringify(rCodec))).numChannels=Math.min(lCodec.numChannels,rCodec.numChannels),commonCapabilities.codecs.push(rCodec),rCodec.rtcpFeedback=rCodec.rtcpFeedback.filter((function(fb){for(var j=0;j<lCodec.rtcpFeedback.length;j++)if(lCodec.rtcpFeedback[j].type===fb.type&&lCodec.rtcpFeedback[j].parameter===fb.parameter)return!0;return!1}));break}}})),localCapabilities.headerExtensions.forEach((function(lHeaderExtension){for(var i=0;i<remoteCapabilities.headerExtensions.length;i++){var rHeaderExtension=remoteCapabilities.headerExtensions[i];if(lHeaderExtension.uri===rHeaderExtension.uri){commonCapabilities.headerExtensions.push(rHeaderExtension);break}}})),commonCapabilities}function isActionAllowedInSignalingState(action,type,signalingState){return-1!=={offer:{setLocalDescription:["stable","have-local-offer"],setRemoteDescription:["stable","have-remote-offer"]},answer:{setLocalDescription:["have-remote-offer","have-local-pranswer"],setRemoteDescription:["have-local-offer","have-remote-pranswer"]}}[type][action].indexOf(signalingState)}function maybeAddCandidate(iceTransport,candidate){var alreadyAdded=iceTransport.getRemoteCandidates().find((function(remoteCandidate){return candidate.foundation===remoteCandidate.foundation&&candidate.ip===remoteCandidate.ip&&candidate.port===remoteCandidate.port&&candidate.priority===remoteCandidate.priority&&candidate.protocol===remoteCandidate.protocol&&candidate.type===remoteCandidate.type}));return alreadyAdded||iceTransport.addRemoteCandidate(candidate),!alreadyAdded}function makeError(name,description){var e=new Error(description);return e.name=name,e.code={NotSupportedError:9,InvalidStateError:11,InvalidAccessError:15,TypeError:void 0,OperationError:void 0}[name],e}module.exports=function(window,edgeVersion){function addTrackToStreamAndFireEvent(track,stream){stream.addTrack(track),stream.dispatchEvent(new window.MediaStreamTrackEvent("addtrack",{track:track}))}function fireAddTrack(pc,track,receiver,streams){var trackEvent=new Event("track");trackEvent.track=track,trackEvent.receiver=receiver,trackEvent.transceiver={receiver:receiver},trackEvent.streams=streams,window.setTimeout((function(){pc._dispatchEvent("track",trackEvent)}))}var RTCPeerConnection=function(config){var pc=this,_eventTarget=document.createDocumentFragment();if(["addEventListener","removeEventListener","dispatchEvent"].forEach((function(method){pc[method]=_eventTarget[method].bind(_eventTarget)})),this.canTrickleIceCandidates=null,this.needNegotiation=!1,this.localStreams=[],this.remoteStreams=[],this._localDescription=null,this._remoteDescription=null,this.signalingState="stable",this.iceConnectionState="new",this.connectionState="new",this.iceGatheringState="new",config=JSON.parse(JSON.stringify(config||{})),this.usingBundle="max-bundle"===config.bundlePolicy,"negotiate"===config.rtcpMuxPolicy)throw makeError("NotSupportedError","rtcpMuxPolicy 'negotiate' is not supported");switch(config.rtcpMuxPolicy||(config.rtcpMuxPolicy="require"),config.iceTransportPolicy){case"all":case"relay":break;default:config.iceTransportPolicy="all"}switch(config.bundlePolicy){case"balanced":case"max-compat":case"max-bundle":break;default:config.bundlePolicy="balanced"}if(config.iceServers=function(iceServers,edgeVersion){var hasTurn=!1;return(iceServers=JSON.parse(JSON.stringify(iceServers))).filter((function(server){if(server&&(server.urls||server.url)){var urls=server.urls||server.url;server.url&&!server.urls&&console.warn("RTCIceServer.url is deprecated! Use urls instead.");var isString="string"==typeof urls;return isString&&(urls=[urls]),urls=urls.filter((function(url){return 0!==url.indexOf("turn:")||-1===url.indexOf("transport=udp")||-1!==url.indexOf("turn:[")||hasTurn?0===url.indexOf("stun:")&&edgeVersion>=14393&&-1===url.indexOf("?transport=udp"):(hasTurn=!0,!0)})),delete server.url,server.urls=isString?urls[0]:urls,!!urls.length}}))}(config.iceServers||[],edgeVersion),this._iceGatherers=[],config.iceCandidatePoolSize)for(var i=config.iceCandidatePoolSize;i>0;i--)this._iceGatherers.push(new window.RTCIceGatherer({iceServers:config.iceServers,gatherPolicy:config.iceTransportPolicy}));else config.iceCandidatePoolSize=0;this._config=config,this.transceivers=[],this._sdpSessionId=SDPUtils.generateSessionId(),this._sdpSessionVersion=0,this._dtlsRole=void 0,this._isClosed=!1};Object.defineProperty(RTCPeerConnection.prototype,"localDescription",{configurable:!0,get:function(){return this._localDescription}}),Object.defineProperty(RTCPeerConnection.prototype,"remoteDescription",{configurable:!0,get:function(){return this._remoteDescription}}),RTCPeerConnection.prototype.onicecandidate=null,RTCPeerConnection.prototype.onaddstream=null,RTCPeerConnection.prototype.ontrack=null,RTCPeerConnection.prototype.onremovestream=null,RTCPeerConnection.prototype.onsignalingstatechange=null,RTCPeerConnection.prototype.oniceconnectionstatechange=null,RTCPeerConnection.prototype.onconnectionstatechange=null,RTCPeerConnection.prototype.onicegatheringstatechange=null,RTCPeerConnection.prototype.onnegotiationneeded=null,RTCPeerConnection.prototype.ondatachannel=null,RTCPeerConnection.prototype._dispatchEvent=function(name,event){this._isClosed||(this.dispatchEvent(event),"function"==typeof this["on"+name]&&this["on"+name](event))},RTCPeerConnection.prototype._emitGatheringStateChange=function(){var event=new Event("icegatheringstatechange");this._dispatchEvent("icegatheringstatechange",event)},RTCPeerConnection.prototype.getConfiguration=function(){return this._config},RTCPeerConnection.prototype.getLocalStreams=function(){return this.localStreams},RTCPeerConnection.prototype.getRemoteStreams=function(){return this.remoteStreams},RTCPeerConnection.prototype._createTransceiver=function(kind,doNotAdd){var hasBundleTransport=this.transceivers.length>0,transceiver={track:null,iceGatherer:null,iceTransport:null,dtlsTransport:null,localCapabilities:null,remoteCapabilities:null,rtpSender:null,rtpReceiver:null,kind:kind,mid:null,sendEncodingParameters:null,recvEncodingParameters:null,stream:null,associatedRemoteMediaStreams:[],wantReceive:!0};if(this.usingBundle&&hasBundleTransport)transceiver.iceTransport=this.transceivers[0].iceTransport,transceiver.dtlsTransport=this.transceivers[0].dtlsTransport;else{var transports=this._createIceAndDtlsTransports();transceiver.iceTransport=transports.iceTransport,transceiver.dtlsTransport=transports.dtlsTransport}return doNotAdd||this.transceivers.push(transceiver),transceiver},RTCPeerConnection.prototype.addTrack=function(track,stream){if(this._isClosed)throw makeError("InvalidStateError","Attempted to call addTrack on a closed peerconnection.");var transceiver;if(this.transceivers.find((function(s){return s.track===track})))throw makeError("InvalidAccessError","Track already exists.");for(var i=0;i<this.transceivers.length;i++)this.transceivers[i].track||this.transceivers[i].kind!==track.kind||(transceiver=this.transceivers[i]);return transceiver||(transceiver=this._createTransceiver(track.kind)),this._maybeFireNegotiationNeeded(),-1===this.localStreams.indexOf(stream)&&this.localStreams.push(stream),transceiver.track=track,transceiver.stream=stream,transceiver.rtpSender=new window.RTCRtpSender(track,transceiver.dtlsTransport),transceiver.rtpSender},RTCPeerConnection.prototype.addStream=function(stream){var pc=this;if(edgeVersion>=15025)stream.getTracks().forEach((function(track){pc.addTrack(track,stream)}));else{var clonedStream=stream.clone();stream.getTracks().forEach((function(track,idx){var clonedTrack=clonedStream.getTracks()[idx];track.addEventListener("enabled",(function(event){clonedTrack.enabled=event.enabled}))})),clonedStream.getTracks().forEach((function(track){pc.addTrack(track,clonedStream)}))}},RTCPeerConnection.prototype.removeTrack=function(sender){if(this._isClosed)throw makeError("InvalidStateError","Attempted to call removeTrack on a closed peerconnection.");if(!(sender instanceof window.RTCRtpSender))throw new TypeError("Argument 1 of RTCPeerConnection.removeTrack does not implement interface RTCRtpSender.");var transceiver=this.transceivers.find((function(t){return t.rtpSender===sender}));if(!transceiver)throw makeError("InvalidAccessError","Sender was not created by this connection.");var stream=transceiver.stream;transceiver.rtpSender.stop(),transceiver.rtpSender=null,transceiver.track=null,transceiver.stream=null,-1===this.transceivers.map((function(t){return t.stream})).indexOf(stream)&&this.localStreams.indexOf(stream)>-1&&this.localStreams.splice(this.localStreams.indexOf(stream),1),this._maybeFireNegotiationNeeded()},RTCPeerConnection.prototype.removeStream=function(stream){var pc=this;stream.getTracks().forEach((function(track){var sender=pc.getSenders().find((function(s){return s.track===track}));sender&&pc.removeTrack(sender)}))},RTCPeerConnection.prototype.getSenders=function(){return this.transceivers.filter((function(transceiver){return!!transceiver.rtpSender})).map((function(transceiver){return transceiver.rtpSender}))},RTCPeerConnection.prototype.getReceivers=function(){return this.transceivers.filter((function(transceiver){return!!transceiver.rtpReceiver})).map((function(transceiver){return transceiver.rtpReceiver}))},RTCPeerConnection.prototype._createIceGatherer=function(sdpMLineIndex,usingBundle){var pc=this;if(usingBundle&&sdpMLineIndex>0)return this.transceivers[0].iceGatherer;if(this._iceGatherers.length)return this._iceGatherers.shift();var iceGatherer=new window.RTCIceGatherer({iceServers:this._config.iceServers,gatherPolicy:this._config.iceTransportPolicy});return Object.defineProperty(iceGatherer,"state",{value:"new",writable:!0}),this.transceivers[sdpMLineIndex].bufferedCandidateEvents=[],this.transceivers[sdpMLineIndex].bufferCandidates=function(event){var end=!event.candidate||0===Object.keys(event.candidate).length;iceGatherer.state=end?"completed":"gathering",null!==pc.transceivers[sdpMLineIndex].bufferedCandidateEvents&&pc.transceivers[sdpMLineIndex].bufferedCandidateEvents.push(event)},iceGatherer.addEventListener("localcandidate",this.transceivers[sdpMLineIndex].bufferCandidates),iceGatherer},RTCPeerConnection.prototype._gather=function(mid,sdpMLineIndex){var pc=this,iceGatherer=this.transceivers[sdpMLineIndex].iceGatherer;if(!iceGatherer.onlocalcandidate){var bufferedCandidateEvents=this.transceivers[sdpMLineIndex].bufferedCandidateEvents;this.transceivers[sdpMLineIndex].bufferedCandidateEvents=null,iceGatherer.removeEventListener("localcandidate",this.transceivers[sdpMLineIndex].bufferCandidates),iceGatherer.onlocalcandidate=function(evt){if(!(pc.usingBundle&&sdpMLineIndex>0)){var event=new Event("icecandidate");event.candidate={sdpMid:mid,sdpMLineIndex:sdpMLineIndex};var cand=evt.candidate,end=!cand||0===Object.keys(cand).length;if(end)"new"!==iceGatherer.state&&"gathering"!==iceGatherer.state||(iceGatherer.state="completed");else{"new"===iceGatherer.state&&(iceGatherer.state="gathering"),cand.component=1,cand.ufrag=iceGatherer.getLocalParameters().usernameFragment;var serializedCandidate=SDPUtils.writeCandidate(cand);event.candidate=Object.assign(event.candidate,SDPUtils.parseCandidate(serializedCandidate)),event.candidate.candidate=serializedCandidate,event.candidate.toJSON=function(){return{candidate:event.candidate.candidate,sdpMid:event.candidate.sdpMid,sdpMLineIndex:event.candidate.sdpMLineIndex,usernameFragment:event.candidate.usernameFragment}}}var sections=SDPUtils.getMediaSections(pc._localDescription.sdp);sections[event.candidate.sdpMLineIndex]+=end?"a=end-of-candidates\r\n":"a="+event.candidate.candidate+"\r\n",pc._localDescription.sdp=SDPUtils.getDescription(pc._localDescription.sdp)+sections.join("");var complete=pc.transceivers.every((function(transceiver){return transceiver.iceGatherer&&"completed"===transceiver.iceGatherer.state}));"gathering"!==pc.iceGatheringState&&(pc.iceGatheringState="gathering",pc._emitGatheringStateChange()),end||pc._dispatchEvent("icecandidate",event),complete&&(pc._dispatchEvent("icecandidate",new Event("icecandidate")),pc.iceGatheringState="complete",pc._emitGatheringStateChange())}},window.setTimeout((function(){bufferedCandidateEvents.forEach((function(e){iceGatherer.onlocalcandidate(e)}))}),0)}},RTCPeerConnection.prototype._createIceAndDtlsTransports=function(){var pc=this,iceTransport=new window.RTCIceTransport(null);iceTransport.onicestatechange=function(){pc._updateIceConnectionState(),pc._updateConnectionState()};var dtlsTransport=new window.RTCDtlsTransport(iceTransport);return dtlsTransport.ondtlsstatechange=function(){pc._updateConnectionState()},dtlsTransport.onerror=function(){Object.defineProperty(dtlsTransport,"state",{value:"failed",writable:!0}),pc._updateConnectionState()},{iceTransport:iceTransport,dtlsTransport:dtlsTransport}},RTCPeerConnection.prototype._disposeIceAndDtlsTransports=function(sdpMLineIndex){var iceGatherer=this.transceivers[sdpMLineIndex].iceGatherer;iceGatherer&&(delete iceGatherer.onlocalcandidate,delete this.transceivers[sdpMLineIndex].iceGatherer);var iceTransport=this.transceivers[sdpMLineIndex].iceTransport;iceTransport&&(delete iceTransport.onicestatechange,delete this.transceivers[sdpMLineIndex].iceTransport);var dtlsTransport=this.transceivers[sdpMLineIndex].dtlsTransport;dtlsTransport&&(delete dtlsTransport.ondtlsstatechange,delete dtlsTransport.onerror,delete this.transceivers[sdpMLineIndex].dtlsTransport)},RTCPeerConnection.prototype._transceive=function(transceiver,send,recv){var params=getCommonCapabilities(transceiver.localCapabilities,transceiver.remoteCapabilities);send&&transceiver.rtpSender&&(params.encodings=transceiver.sendEncodingParameters,params.rtcp={cname:SDPUtils.localCName,compound:transceiver.rtcpParameters.compound},transceiver.recvEncodingParameters.length&&(params.rtcp.ssrc=transceiver.recvEncodingParameters[0].ssrc),transceiver.rtpSender.send(params)),recv&&transceiver.rtpReceiver&¶ms.codecs.length>0&&("video"===transceiver.kind&&transceiver.recvEncodingParameters&&edgeVersion<15019&&transceiver.recvEncodingParameters.forEach((function(p){delete p.rtx})),transceiver.recvEncodingParameters.length?params.encodings=transceiver.recvEncodingParameters:params.encodings=[{}],params.rtcp={compound:transceiver.rtcpParameters.compound},transceiver.rtcpParameters.cname&&(params.rtcp.cname=transceiver.rtcpParameters.cname),transceiver.sendEncodingParameters.length&&(params.rtcp.ssrc=transceiver.sendEncodingParameters[0].ssrc),transceiver.rtpReceiver.receive(params))},RTCPeerConnection.prototype.setLocalDescription=function(description){var sections,sessionpart,pc=this;if(-1===["offer","answer"].indexOf(description.type))return Promise.reject(makeError("TypeError",'Unsupported type "'+description.type+'"'));if(!isActionAllowedInSignalingState("setLocalDescription",description.type,pc.signalingState)||pc._isClosed)return Promise.reject(makeError("InvalidStateError","Can not set local "+description.type+" in state "+pc.signalingState));if("offer"===description.type)sections=SDPUtils.splitSections(description.sdp),sessionpart=sections.shift(),sections.forEach((function(mediaSection,sdpMLineIndex){var caps=SDPUtils.parseRtpParameters(mediaSection);pc.transceivers[sdpMLineIndex].localCapabilities=caps})),pc.transceivers.forEach((function(transceiver,sdpMLineIndex){pc._gather(transceiver.mid,sdpMLineIndex)}));else if("answer"===description.type){sections=SDPUtils.splitSections(pc._remoteDescription.sdp),sessionpart=sections.shift();var isIceLite=SDPUtils.matchPrefix(sessionpart,"a=ice-lite").length>0;sections.forEach((function(mediaSection,sdpMLineIndex){var transceiver=pc.transceivers[sdpMLineIndex],iceGatherer=transceiver.iceGatherer,iceTransport=transceiver.iceTransport,dtlsTransport=transceiver.dtlsTransport,localCapabilities=transceiver.localCapabilities,remoteCapabilities=transceiver.remoteCapabilities;if(!(SDPUtils.isRejected(mediaSection)&&0===SDPUtils.matchPrefix(mediaSection,"a=bundle-only").length)&&!transceiver.rejected){var remoteIceParameters=SDPUtils.getIceParameters(mediaSection,sessionpart),remoteDtlsParameters=SDPUtils.getDtlsParameters(mediaSection,sessionpart);isIceLite&&(remoteDtlsParameters.role="server"),pc.usingBundle&&0!==sdpMLineIndex||(pc._gather(transceiver.mid,sdpMLineIndex),"new"===iceTransport.state&&iceTransport.start(iceGatherer,remoteIceParameters,isIceLite?"controlling":"controlled"),"new"===dtlsTransport.state&&dtlsTransport.start(remoteDtlsParameters));var params=getCommonCapabilities(localCapabilities,remoteCapabilities);pc._transceive(transceiver,params.codecs.length>0,!1)}}))}return pc._localDescription={type:description.type,sdp:description.sdp},"offer"===description.type?pc._updateSignalingState("have-local-offer"):pc._updateSignalingState("stable"),Promise.resolve()},RTCPeerConnection.prototype.setRemoteDescription=function(description){var pc=this;if(-1===["offer","answer"].indexOf(description.type))return Promise.reject(makeError("TypeError",'Unsupported type "'+description.type+'"'));if(!isActionAllowedInSignalingState("setRemoteDescription",description.type,pc.signalingState)||pc._isClosed)return Promise.reject(makeError("InvalidStateError","Can not set remote "+description.type+" in state "+pc.signalingState));var streams={};pc.remoteStreams.forEach((function(stream){streams[stream.id]=stream}));var receiverList=[],sections=SDPUtils.splitSections(description.sdp),sessionpart=sections.shift(),isIceLite=SDPUtils.matchPrefix(sessionpart,"a=ice-lite").length>0,usingBundle=SDPUtils.matchPrefix(sessionpart,"a=group:BUNDLE ").length>0;pc.usingBundle=usingBundle;var iceOptions=SDPUtils.matchPrefix(sessionpart,"a=ice-options:")[0];return pc.canTrickleIceCandidates=!!iceOptions&&iceOptions.substr(14).split(" ").indexOf("trickle")>=0,sections.forEach((function(mediaSection,sdpMLineIndex){var lines=SDPUtils.splitLines(mediaSection),kind=SDPUtils.getKind(mediaSection),rejected=SDPUtils.isRejected(mediaSection)&&0===SDPUtils.matchPrefix(mediaSection,"a=bundle-only").length,protocol=lines[0].substr(2).split(" ")[2],direction=SDPUtils.getDirection(mediaSection,sessionpart),remoteMsid=SDPUtils.parseMsid(mediaSection),mid=SDPUtils.getMid(mediaSection)||SDPUtils.generateIdentifier();if(rejected||"application"===kind&&("DTLS/SCTP"===protocol||"UDP/DTLS/SCTP"===protocol))pc.transceivers[sdpMLineIndex]={mid:mid,kind:kind,protocol:protocol,rejected:!0};else{var transceiver,iceGatherer,iceTransport,dtlsTransport,rtpReceiver,sendEncodingParameters,recvEncodingParameters,localCapabilities,track;!rejected&&pc.transceivers[sdpMLineIndex]&&pc.transceivers[sdpMLineIndex].rejected&&(pc.transceivers[sdpMLineIndex]=pc._createTransceiver(kind,!0));var remoteIceParameters,remoteDtlsParameters,remoteCapabilities=SDPUtils.parseRtpParameters(mediaSection);rejected||(remoteIceParameters=SDPUtils.getIceParameters(mediaSection,sessionpart),(remoteDtlsParameters=SDPUtils.getDtlsParameters(mediaSection,sessionpart)).role="client"),recvEncodingParameters=SDPUtils.parseRtpEncodingParameters(mediaSection);var rtcpParameters=SDPUtils.parseRtcpParameters(mediaSection),isComplete=SDPUtils.matchPrefix(mediaSection,"a=end-of-candidates",sessionpart).length>0,cands=SDPUtils.matchPrefix(mediaSection,"a=candidate:").map((function(cand){return SDPUtils.parseCandidate(cand)})).filter((function(cand){return 1===cand.component}));if(("offer"===description.type||"answer"===description.type)&&!rejected&&usingBundle&&sdpMLineIndex>0&&pc.transceivers[sdpMLineIndex]&&(pc._disposeIceAndDtlsTransports(sdpMLineIndex),pc.transceivers[sdpMLineIndex].iceGatherer=pc.transceivers[0].iceGatherer,pc.transceivers[sdpMLineIndex].iceTransport=pc.transceivers[0].iceTransport,pc.transceivers[sdpMLineIndex].dtlsTransport=pc.transceivers[0].dtlsTransport,pc.transceivers[sdpMLineIndex].rtpSender&&pc.transceivers[sdpMLineIndex].rtpSender.setTransport(pc.transceivers[0].dtlsTransport),pc.transceivers[sdpMLineIndex].rtpReceiver&&pc.transceivers[sdpMLineIndex].rtpReceiver.setTransport(pc.transceivers[0].dtlsTransport)),"offer"!==description.type||rejected){if("answer"===description.type&&!rejected){iceGatherer=(transceiver=pc.transceivers[sdpMLineIndex]).iceGatherer,iceTransport=transceiver.iceTransport,dtlsTransport=transceiver.dtlsTransport,rtpReceiver=transceiver.rtpReceiver,sendEncodingParameters=transceiver.sendEncodingParameters,localCapabilities=transceiver.localCapabilities,pc.transceivers[sdpMLineIndex].recvEncodingParameters=recvEncodingParameters,pc.transceivers[sdpMLineIndex].remoteCapabilities=remoteCapabilities,pc.transceivers[sdpMLineIndex].rtcpParameters=rtcpParameters,cands.length&&"new"===iceTransport.state&&(!isIceLite&&!isComplete||usingBundle&&0!==sdpMLineIndex?cands.forEach((function(candidate){maybeAddCandidate(transceiver.iceTransport,candidate)})):iceTransport.setRemoteCandidates(cands)),usingBundle&&0!==sdpMLineIndex||("new"===iceTransport.state&&iceTransport.start(iceGatherer,remoteIceParameters,"controlling"),"new"===dtlsTransport.state&&dtlsTransport.start(remoteDtlsParameters)),!getCommonCapabilities(transceiver.localCapabilities,transceiver.remoteCapabilities).codecs.filter((function(c){return"rtx"===c.name.toLowerCase()})).length&&transceiver.sendEncodingParameters[0].rtx&&delete transceiver.sendEncodingParameters[0].rtx,pc._transceive(transceiver,"sendrecv"===direction||"recvonly"===direction,"sendrecv"===direction||"sendonly"===direction),!rtpReceiver||"sendrecv"!==direction&&"sendonly"!==direction?delete transceiver.rtpReceiver:(track=rtpReceiver.track,remoteMsid?(streams[remoteMsid.stream]||(streams[remoteMsid.stream]=new window.MediaStream),addTrackToStreamAndFireEvent(track,streams[remoteMsid.stream]),receiverList.push([track,rtpReceiver,streams[remoteMsid.stream]])):(streams.default||(streams.default=new window.MediaStream),addTrackToStreamAndFireEvent(track,streams.default),receiverList.push([track,rtpReceiver,streams.default])))}}else{(transceiver=pc.transceivers[sdpMLineIndex]||pc._createTransceiver(kind)).mid=mid,transceiver.iceGatherer||(transceiver.iceGatherer=pc._createIceGatherer(sdpMLineIndex,usingBundle)),cands.length&&"new"===transceiver.iceTransport.state&&(!isComplete||usingBundle&&0!==sdpMLineIndex?cands.forEach((function(candidate){maybeAddCandidate(transceiver.iceTransport,candidate)})):transceiver.iceTransport.setRemoteCandidates(cands)),localCapabilities=window.RTCRtpReceiver.getCapabilities(kind),edgeVersion<15019&&(localCapabilities.codecs=localCapabilities.codecs.filter((function(codec){return"rtx"!==codec.name}))),sendEncodingParameters=transceiver.sendEncodingParameters||[{ssrc:1001*(2*sdpMLineIndex+2)}];var stream,isNewTrack=!1;if("sendrecv"===direction||"sendonly"===direction){if(isNewTrack=!transceiver.rtpReceiver,rtpReceiver=transceiver.rtpReceiver||new window.RTCRtpReceiver(transceiver.dtlsTransport,kind),isNewTrack)track=rtpReceiver.track,remoteMsid&&"-"===remoteMsid.stream||(remoteMsid?(streams[remoteMsid.stream]||(streams[remoteMsid.stream]=new window.MediaStream,Object.defineProperty(streams[remoteMsid.stream],"id",{get:function(){return remoteMsid.stream}})),Object.defineProperty(track,"id",{get:function(){return remoteMsid.track}}),stream=streams[remoteMsid.stream]):(streams.default||(streams.default=new window.MediaStream),stream=streams.default)),stream&&(addTrackToStreamAndFireEvent(track,stream),transceiver.associatedRemoteMediaStreams.push(stream)),receiverList.push([track,rtpReceiver,stream])}else transceiver.rtpReceiver&&transceiver.rtpReceiver.track&&(transceiver.associatedRemoteMediaStreams.forEach((function(s){var nativeTrack=s.getTracks().find((function(t){return t.id===transceiver.rtpReceiver.track.id}));nativeTrack&&function(track,stream){stream.removeTrack(track),stream.dispatchEvent(new window.MediaStreamTrackEvent("removetrack",{track:track}))}(nativeTrack,s)})),transceiver.associatedRemoteMediaStreams=[]);transceiver.localCapabilities=localCapabilities,transceiver.remoteCapabilities=remoteCapabilities,transceiver.rtpReceiver=rtpReceiver,transceiver.rtcpParameters=rtcpParameters,transceiver.sendEncodingParameters=sendEncodingParameters,transceiver.recvEncodingParameters=recvEncodingParameters,pc._transceive(pc.transceivers[sdpMLineIndex],!1,isNewTrack)}}})),void 0===pc._dtlsRole&&(pc._dtlsRole="offer"===description.type?"active":"passive"),pc._remoteDescription={type:description.type,sdp:description.sdp},"offer"===description.type?pc._updateSignalingState("have-remote-offer"):pc._updateSignalingState("stable"),Object.keys(streams).forEach((function(sid){var stream=streams[sid];if(stream.getTracks().length){if(-1===pc.remoteStreams.indexOf(stream)){pc.remoteStreams.push(stream);var event=new Event("addstream");event.stream=stream,window.setTimeout((function(){pc._dispatchEvent("addstream",event)}))}receiverList.forEach((function(item){var track=item[0],receiver=item[1];stream.id===item[2].id&&fireAddTrack(pc,track,receiver,[stream])}))}})),receiverList.forEach((function(item){item[2]||fireAddTrack(pc,item[0],item[1],[])})),window.setTimeout((function(){pc&&pc.transceivers&&pc.transceivers.forEach((function(transceiver){transceiver.iceTransport&&"new"===transceiver.iceTransport.state&&transceiver.iceTransport.getRemoteCandidates().length>0&&(console.warn("Timeout for addRemoteCandidate. Consider sending an end-of-candidates notification"),transceiver.iceTransport.addRemoteCandidate({}))}))}),4e3),Promise.resolve()},RTCPeerConnection.prototype.close=function(){this.transceivers.forEach((function(transceiver){transceiver.iceTransport&&transceiver.iceTransport.stop(),transceiver.dtlsTransport&&transceiver.dtlsTransport.stop(),transceiver.rtpSender&&transceiver.rtpSender.stop(),transceiver.rtpReceiver&&transceiver.rtpReceiver.stop()})),this._isClosed=!0,this._updateSignalingState("closed")},RTCPeerConnection.prototype._updateSignalingState=function(newState){this.signalingState=newState;var event=new Event("signalingstatechange");this._dispatchEvent("signalingstatechange",event)},RTCPeerConnection.prototype._maybeFireNegotiationNeeded=function(){var pc=this;"stable"===this.signalingState&&!0!==this.needNegotiation&&(this.needNegotiation=!0,window.setTimeout((function(){if(pc.needNegotiation){pc.needNegotiation=!1;var event=new Event("negotiationneeded");pc._dispatchEvent("negotiationneeded",event)}}),0))},RTCPeerConnection.prototype._updateIceConnectionState=function(){var newState,states={new:0,closed:0,checking:0,connected:0,completed:0,disconnected:0,failed:0};if(this.transceivers.forEach((function(transceiver){transceiver.iceTransport&&!transceiver.rejected&&states[transceiver.iceTransport.state]++})),newState="new",states.failed>0?newState="failed":states.checking>0?newState="checking":states.disconnected>0?newState="disconnected":states.new>0?newState="new":states.connected>0?newState="connected":states.completed>0&&(newState="completed"),newState!==this.iceConnectionState){this.iceConnectionState=newState;var event=new Event("iceconnectionstatechange");this._dispatchEvent("iceconnectionstatechange",event)}},RTCPeerConnection.prototype._updateConnectionState=function(){var newState,states={new:0,closed:0,connecting:0,connected:0,completed:0,disconnected:0,failed:0};if(this.transceivers.forEach((function(transceiver){transceiver.iceTransport&&transceiver.dtlsTransport&&!transceiver.rejected&&(states[transceiver.iceTransport.state]++,states[transceiver.dtlsTransport.state]++)})),states.connected+=states.completed,newState="new",states.failed>0?newState="failed":states.connecting>0?newState="connecting":states.disconnected>0?newState="disconnected":states.new>0?newState="new":states.connected>0&&(newState="connected"),newState!==this.connectionState){this.connectionState=newState;var event=new Event("connectionstatechange");this._dispatchEvent("connectionstatechange",event)}},RTCPeerConnection.prototype.createOffer=function(){var pc=this;if(pc._isClosed)return Promise.reject(makeError("InvalidStateError","Can not call createOffer after close"));var numAudioTracks=pc.transceivers.filter((function(t){return"audio"===t.kind})).length,numVideoTracks=pc.transceivers.filter((function(t){return"video"===t.kind})).length,offerOptions=arguments[0];if(offerOptions){if(offerOptions.mandatory||offerOptions.optional)throw new TypeError("Legacy mandatory/optional constraints not supported.");void 0!==offerOptions.offerToReceiveAudio&&(numAudioTracks=!0===offerOptions.offerToReceiveAudio?1:!1===offerOptions.offerToReceiveAudio?0:offerOptions.offerToReceiveAudio),void 0!==offerOptions.offerToReceiveVideo&&(numVideoTracks=!0===offerOptions.offerToReceiveVideo?1:!1===offerOptions.offerToReceiveVideo?0:offerOptions.offerToReceiveVideo)}for(pc.transceivers.forEach((function(transceiver){"audio"===transceiver.kind?--numAudioTracks<0&&(transceiver.wantReceive=!1):"video"===transceiver.kind&&--numVideoTracks<0&&(transceiver.wantReceive=!1)}));numAudioTracks>0||numVideoTracks>0;)numAudioTracks>0&&(pc._createTransceiver("audio"),numAudioTracks--),numVideoTracks>0&&(pc._createTransceiver("video"),numVideoTracks--);var sdp=SDPUtils.writeSessionBoilerplate(pc._sdpSessionId,pc._sdpSessionVersion++);pc.transceivers.forEach((function(transceiver,sdpMLineIndex){var track=transceiver.track,kind=transceiver.kind,mid=transceiver.mid||SDPUtils.generateIdentifier();transceiver.mid=mid,transceiver.iceGatherer||(transceiver.iceGatherer=pc._createIceGatherer(sdpMLineIndex,pc.usingBundle));var localCapabilities=window.RTCRtpSender.getCapabilities(kind);edgeVersion<15019&&(localCapabilities.codecs=localCapabilities.codecs.filter((function(codec){return"rtx"!==codec.name}))),localCapabilities.codecs.forEach((function(codec){"H264"===codec.name&&void 0===codec.parameters["level-asymmetry-allowed"]&&(codec.parameters["level-asymmetry-allowed"]="1"),transceiver.remoteCapabilities&&transceiver.remoteCapabilities.codecs&&transceiver.remoteCapabilities.codecs.forEach((function(remoteCodec){codec.name.toLowerCase()===remoteCodec.name.toLowerCase()&&codec.clockRate===remoteCodec.clockRate&&(codec.preferredPayloadType=remoteCodec.payloadType)}))})),localCapabilities.headerExtensions.forEach((function(hdrExt){(transceiver.remoteCapabilities&&transceiver.remoteCapabilities.headerExtensions||[]).forEach((function(rHdrExt){hdrExt.uri===rHdrExt.uri&&(hdrExt.id=rHdrExt.id)}))}));var sendEncodingParameters=transceiver.sendEncodingParameters||[{ssrc:1001*(2*sdpMLineIndex+1)}];track&&edgeVersion>=15019&&"video"===kind&&!sendEncodingParameters[0].rtx&&(sendEncodingParameters[0].rtx={ssrc:sendEncodingParameters[0].ssrc+1}),transceiver.wantReceive&&(transceiver.rtpReceiver=new window.RTCRtpReceiver(transceiver.dtlsTransport,kind)),transceiver.localCapabilities=localCapabilities,transceiver.sendEncodingParameters=sendEncodingParameters})),"max-compat"!==pc._config.bundlePolicy&&(sdp+="a=group:BUNDLE "+pc.transceivers.map((function(t){return t.mid})).join(" ")+"\r\n"),sdp+="a=ice-options:trickle\r\n",pc.transceivers.forEach((function(transceiver,sdpMLineIndex){sdp+=writeMediaSection(transceiver,transceiver.localCapabilities,"offer",transceiver.stream,pc._dtlsRole),sdp+="a=rtcp-rsize\r\n",!transceiver.iceGatherer||"new"===pc.iceGatheringState||0!==sdpMLineIndex&&pc.usingBundle||(transceiver.iceGatherer.getLocalCandidates().forEach((function(cand){cand.component=1,sdp+="a="+SDPUtils.writeCandidate(cand)+"\r\n"})),"completed"===transceiver.iceGatherer.state&&(sdp+="a=end-of-candidates\r\n"))}));var desc=new window.RTCSessionDescription({type:"offer",sdp:sdp});return Promise.resolve(desc)},RTCPeerConnection.prototype.createAnswer=function(){var pc=this;if(pc._isClosed)return Promise.reject(makeError("InvalidStateError","Can not call createAnswer after close"));if("have-remote-offer"!==pc.signalingState&&"have-local-pranswer"!==pc.signalingState)return Promise.reject(makeError("InvalidStateError","Can not call createAnswer in signalingState "+pc.signalingState));var sdp=SDPUtils.writeSessionBoilerplate(pc._sdpSessionId,pc._sdpSessionVersion++);pc.usingBundle&&(sdp+="a=group:BUNDLE "+pc.transceivers.map((function(t){return t.mid})).join(" ")+"\r\n"),sdp+="a=ice-options:trickle\r\n";var mediaSectionsInOffer=SDPUtils.getMediaSections(pc._remoteDescription.sdp).length;pc.transceivers.forEach((function(transceiver,sdpMLineIndex){if(!(sdpMLineIndex+1>mediaSectionsInOffer)){if(transceiver.rejected)return"application"===transceiver.kind?"DTLS/SCTP"===transceiver.protocol?sdp+="m=application 0 DTLS/SCTP 5000\r\n":sdp+="m=application 0 "+transceiver.protocol+" webrtc-datachannel\r\n":"audio"===transceiver.kind?sdp+="m=audio 0 UDP/TLS/RTP/SAVPF 0\r\na=rtpmap:0 PCMU/8000\r\n":"video"===transceiver.kind&&(sdp+="m=video 0 UDP/TLS/RTP/SAVPF 120\r\na=rtpmap:120 VP8/90000\r\n"),void(sdp+="c=IN IP4 0.0.0.0\r\na=inactive\r\na=mid:"+transceiver.mid+"\r\n");var localTrack;if(transceiver.stream)"audio"===transceiver.kind?localTrack=transceiver.stream.getAudioTracks()[0]:"video"===transceiver.kind&&(localTrack=transceiver.stream.getVideoTracks()[0]),localTrack&&edgeVersion>=15019&&"video"===transceiver.kind&&!transceiver.sendEncodingParameters[0].rtx&&(transceiver.sendEncodingParameters[0].rtx={ssrc:transceiver.sendEncodingParameters[0].ssrc+1});var commonCapabilities=getCommonCapabilities(transceiver.localCapabilities,transceiver.remoteCapabilities);!commonCapabilities.codecs.filter((function(c){return"rtx"===c.name.toLowerCase()})).length&&transceiver.sendEncodingParameters[0].rtx&&delete transceiver.sendEncodingParameters[0].rtx,sdp+=writeMediaSection(transceiver,commonCapabilities,"answer",transceiver.stream,pc._dtlsRole),transceiver.rtcpParameters&&transceiver.rtcpParameters.reducedSize&&(sdp+="a=rtcp-rsize\r\n")}}));var desc=new window.RTCSessionDescription({type:"answer",sdp:sdp});return Promise.resolve(desc)},RTCPeerConnection.prototype.addIceCandidate=function(candidate){var sections,pc=this;return candidate&&void 0===candidate.sdpMLineIndex&&!candidate.sdpMid?Promise.reject(new TypeError("sdpMLineIndex or sdpMid required")):new Promise((function(resolve,reject){if(!pc._remoteDescription)return reject(makeError("InvalidStateError","Can not add ICE candidate without a remote description"));if(candidate&&""!==candidate.candidate){var sdpMLineIndex=candidate.sdpMLineIndex;if(candidate.sdpMid)for(var i=0;i<pc.transceivers.length;i++)if(pc.transceivers[i].mid===candidate.sdpMid){sdpMLineIndex=i;break}var transceiver=pc.transceivers[sdpMLineIndex];if(!transceiver)return reject(makeError("OperationError","Can not add ICE candidate"));if(transceiver.rejected)return resolve();var cand=Object.keys(candidate.candidate).length>0?SDPUtils.parseCandidate(candidate.candidate):{};if("tcp"===cand.protocol&&(0===cand.port||9===cand.port))return resolve();if(cand.component&&1!==cand.component)return resolve();if((0===sdpMLineIndex||sdpMLineIndex>0&&transceiver.iceTransport!==pc.transceivers[0].iceTransport)&&!maybeAddCandidate(transceiver.iceTransport,cand))return reject(makeError("OperationError","Can not add ICE candidate"));var candidateString=candidate.candidate.trim();0===candidateString.indexOf("a=")&&(candidateString=candidateString.substr(2)),(sections=SDPUtils.getMediaSections(pc._remoteDescription.sdp))[sdpMLineIndex]+="a="+(cand.type?candidateString:"end-of-candidates")+"\r\n",pc._remoteDescription.sdp=SDPUtils.getDescription(pc._remoteDescription.sdp)+sections.join("")}else for(var j=0;j<pc.transceivers.length&&(pc.transceivers[j].rejected||(pc.transceivers[j].iceTransport.addRemoteCandidate({}),(sections=SDPUtils.getMediaSections(pc._remoteDescription.sdp))[j]+="a=end-of-candidates\r\n",pc._remoteDescription.sdp=SDPUtils.getDescription(pc._remoteDescription.sdp)+sections.join(""),!pc.usingBundle));j++);resolve()}))},RTCPeerConnection.prototype.getStats=function(selector){if(selector&&selector instanceof window.MediaStreamTrack){var senderOrReceiver=null;if(this.transceivers.forEach((function(transceiver){transceiver.rtpSender&&transceiver.rtpSender.track===selector?senderOrReceiver=transceiver.rtpSender:transceiver.rtpReceiver&&transceiver.rtpReceiver.track===selector&&(senderOrReceiver=transceiver.rtpReceiver)})),!senderOrReceiver)throw makeError("InvalidAccessError","Invalid selector.");return senderOrReceiver.getStats()}var promises=[];return this.transceivers.forEach((function(transceiver){["rtpSender","rtpReceiver","iceGatherer","iceTransport","dtlsTransport"].forEach((function(method){transceiver[method]&&promises.push(transceiver[method].getStats())}))})),Promise.all(promises).then((function(allStats){var results=new Map;return allStats.forEach((function(stats){stats.forEach((function(stat){results.set(stat.id,stat)}))})),results}))};["RTCRtpSender","RTCRtpReceiver","RTCIceGatherer","RTCIceTransport","RTCDtlsTransport"].forEach((function(ortcObjectName){var obj=window[ortcObjectName];if(obj&&obj.prototype&&obj.prototype.getStats){var nativeGetstats=obj.prototype.getStats;obj.prototype.getStats=function(){return nativeGetstats.apply(this).then((function(nativeStats){var mapStats=new Map;return Object.keys(nativeStats).forEach((function(id){var stat;nativeStats[id].type={inboundrtp:"inbound-rtp",outboundrtp:"outbound-rtp",candidatepair:"candidate-pair",localcandidate:"local-candidate",remotecandidate:"remote-candidate"}[(stat=nativeStats[id]).type]||stat.type,mapStats.set(id,nativeStats[id])})),mapStats}))}}}));var methods=["createOffer","createAnswer"];return methods.forEach((function(method){var nativeMethod=RTCPeerConnection.prototype[method];RTCPeerConnection.prototype[method]=function(){var args=arguments;return"function"==typeof args[0]||"function"==typeof args[1]?nativeMethod.apply(this,[arguments[2]]).then((function(description){"function"==typeof args[0]&&args[0].apply(null,[description])}),(function(error){"function"==typeof args[1]&&args[1].apply(null,[error])})):nativeMethod.apply(this,arguments)}})),(methods=["setLocalDescription","setRemoteDescription","addIceCandidate"]).forEach((function(method){var nativeMethod=RTCPeerConnection.prototype[method];RTCPeerConnection.prototype[method]=function(){var args=arguments;return"function"==typeof args[1]||"function"==typeof args[2]?nativeMethod.apply(this,arguments).then((function(){"function"==typeof args[1]&&args[1].apply(null)}),(function(error){"function"==typeof args[2]&&args[2].apply(null,[error])})):nativeMethod.apply(this,arguments)}})),["getStats"].forEach((function(method){var nativeMethod=RTCPeerConnection.prototype[method];RTCPeerConnection.prototype[method]=function(){var args=arguments;return"function"==typeof args[1]?nativeMethod.apply(this,arguments).then((function(){"function"==typeof args[1]&&args[1].apply(null)})):nativeMethod.apply(this,arguments)}})),RTCPeerConnection}},{sdp:17}],17:[function(require,module,exports){var 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,candidate={foundation:(parts=0===line.indexOf("a=candidate:")?line.substring(12).split(" "):line.substring(10).split(" "))[0],component:parseInt(parts[1],10),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:candidate[parts[i]]=parts[i+1]}return candidate},SDPUtils.writeCandidate=function(candidate){var sdp=[];sdp.push(candidate.foundation),sdp.push(candidate.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 kv,parsed={},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"===_typeof2(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){return"a=ice-ufrag:"+params.usernameFragment+"\r\na=ice-pwd:"+params.password+"\r\n"},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"),sdp+="a=rtcp-mux\r\n",caps.headerExtensions&&caps.headerExtensions.forEach((function(extension){sdp+=SDPUtils.writeExtmap(extension)})),sdp},SDPUtils.parseRtpEncodingParameters=function(mediaSection){var secondarySsrc,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,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.parseMsid=function(mediaSection){var parts,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 maxMessageSize,mline=SDPUtils.parseMLine(mediaSection),maxSizeLine=SDPUtils.matchPrefix(mediaSection,"a=max-message-size:");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};if(SDPUtils.matchPrefix(mediaSection,"a=sctpmap:").length>0){var parts=SDPUtils.matchPrefix(mediaSection,"a=sctpmap:")[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.writeMediaSection=function(transceiver,caps,type,stream){var sdp=SDPUtils.writeRtpDescription(transceiver.kind,caps);if(sdp+=SDPUtils.writeIceParameters(transceiver.iceGatherer.getLocalParameters()),sdp+=SDPUtils.writeDtlsParameters(transceiver.dtlsTransport.getLocalParameters(),"offer"===type?"actpass":"active"),sdp+="a=mid:"+transceiver.mid+"\r\n",transceiver.direction?sdp+="a="+transceiver.direction+"\r\n":transceiver.rtpSender&&transceiver.rtpReceiver?sdp+="a=sendrecv\r\n":transceiver.rtpSender?sdp+="a=sendonly\r\n":transceiver.rtpReceiver?sdp+="a=recvonly\r\n":sdp+="a=inactive\r\n",transceiver.rtpSender){var msid="msid:"+stream.id+" "+transceiver.rtpSender.track.id+"\r\n";sdp+="a="+msid,sdp+="a=ssrc:"+transceiver.sendEncodingParameters[0].ssrc+" "+msid,transceiver.sendEncodingParameters[0].rtx&&(sdp+="a=ssrc:"+transceiver.sendEncodingParameters[0].rtx.ssrc+" "+msid,sdp+="a=ssrc-group:FID "+transceiver.sendEncodingParameters[0].ssrc+" "+transceiver.sendEncodingParameters[0].rtx.ssrc+"\r\n")}return sdp+="a=ssrc:"+transceiver.sendEncodingParameters[0].ssrc+" cname:"+SDPUtils.localCName+"\r\n",transceiver.rtpSender&&transceiver.sendEncodingParameters[0].rtx&&(sdp+="a=ssrc:"+transceiver.sendEncodingParameters[0].rtx.ssrc+" cname:"+SDPUtils.localCName+"\r\n"),sdp},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"===_typeof2(module)&&(module.exports=SDPUtils)},{}]},{},[1])(1)})); //# sourceMappingURL=adapter.min.js.map
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