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n=e.RTCPeerConnection.prototype.removeTrack;e.RTCPeerConnection.prototype.removeTrack=function(e){n.apply(this,arguments);var t=this._senders.indexOf(e);-1!==t&&this._senders.splice(t,1)}}var i=e.RTCPeerConnection.prototype.addStream;e.RTCPeerConnection.prototype.addStream=function(e){var r=this;this._senders=this._senders||[],i.apply(this,[e]),e.getTracks().forEach((function(e){r._senders.push(t(r,e))}))};var o=e.RTCPeerConnection.prototype.removeStream;e.RTCPeerConnection.prototype.removeStream=function(e){var t=this;this._senders=this._senders||[],o.apply(this,[e]),e.getTracks().forEach((function(e){var r=t._senders.find((function(t){return t.track===e}));r&&t._senders.splice(t._senders.indexOf(r),1)}))}}else if("object"==typeof e&&e.RTCPeerConnection&&"getSenders"in e.RTCPeerConnection.prototype&&"createDTMFSender"in e.RTCPeerConnection.prototype&&e.RTCRtpSender&&!("dtmf"in e.RTCRtpSender.prototype)){var a=e.RTCPeerConnection.prototype.getSenders;e.RTCPeerConnection.prototype.getSenders=function(){var e=this,t=a.apply(this,[]);return t.forEach((function(t){return t._pc=e})),t},Object.defineProperty(e.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}})}}function B(e){if(e.RTCPeerConnection){var t=e.RTCPeerConnection.prototype.getStats;e.RTCPeerConnection.prototype.getStats=function(){var e=this,r=s(arguments,3),n=r[0],i=r[1],o=r[2];if(arguments.length>0&&"function"==typeof n)return t.apply(this,arguments);if(0===t.length&&(0===arguments.length||"function"!=typeof n))return t.apply(this,[]);var a=function(e){var t={};return e.result().forEach((function(e){var r={id:e.id,timestamp:e.timestamp,type:{localcandidate:"local-candidate",remotecandidate:"remote-candidate"}[e.type]||e.type};e.names().forEach((function(t){r[t]=e.stat(t)})),t[r.id]=r})),t},c=function(e){return new Map(Object.keys(e).map((function(t){return[t,e[t]]})))};if(arguments.length>=2){var p=function(e){i(c(a(e)))};return t.apply(this,[p,n])}return new Promise((function(r,n){t.apply(e,[function(e){r(c(a(e)))},n])})).then(i,o)}}}function N(e){if("object"==typeof e&&e.RTCPeerConnection&&e.RTCRtpSender&&e.RTCRtpReceiver){if(!("getStats"in e.RTCRtpSender.prototype)){var t=e.RTCPeerConnection.prototype.getSenders;t&&(e.RTCPeerConnection.prototype.getSenders=function(){var e=this,r=t.apply(this,[]);return r.forEach((function(t){return t._pc=e})),r});var r=e.RTCPeerConnection.prototype.addTrack;r&&(e.RTCPeerConnection.prototype.addTrack=function(){var e=r.apply(this,arguments);return e._pc=this,e}),e.RTCRtpSender.prototype.getStats=function(){var e=this;return this._pc.getStats().then((function(t){return x(t,e.track,!0)}))}}if(!("getStats"in e.RTCRtpReceiver.prototype)){var n=e.RTCPeerConnection.prototype.getReceivers;n&&(e.RTCPeerConnection.prototype.getReceivers=function(){var e=this,t=n.apply(this,[]);return t.forEach((function(t){return t._pc=e})),t}),C(e,"track",(function(e){return e.receiver._pc=e.srcElement,e})),e.RTCRtpReceiver.prototype.getStats=function(){var e=this;return this._pc.getStats().then((function(t){return x(t,e.track,!1)}))}}if("getStats"in e.RTCRtpSender.prototype&&"getStats"in e.RTCRtpReceiver.prototype){var i=e.RTCPeerConnection.prototype.getStats;e.RTCPeerConnection.prototype.getStats=function(){if(arguments.length>0&&arguments[0]instanceof e.MediaStreamTrack){var t,r,n,o=arguments[0];return this.getSenders().forEach((function(e){e.track===o&&(t?n=!0:t=e)})),this.getReceivers().forEach((function(e){return e.track===o&&(r?n=!0:r=e),e.track===o})),n||t&&r?Promise.reject(new DOMException("There are more than one sender or receiver for the track.","InvalidAccessError")):t?t.getStats():r?r.getStats():Promise.reject(new DOMException("There is no sender or receiver for the track.","InvalidAccessError"))}return i.apply(this,arguments)}}}}function F(e){e.RTCPeerConnection.prototype.getLocalStreams=function(){var e=this;return this._shimmedLocalStreams=this._shimmedLocalStreams||{},Object.keys(this._shimmedLocalStreams).map((function(t){return e._shimmedLocalStreams[t][0]}))};var t=e.RTCPeerConnection.prototype.addTrack;e.RTCPeerConnection.prototype.addTrack=function(e,r){if(!r)return t.apply(this,arguments);this._shimmedLocalStreams=this._shimmedLocalStreams||{};var n=t.apply(this,arguments);return this._shimmedLocalStreams[r.id]?-1===this._shimmedLocalStreams[r.id].indexOf(n)&&this._shimmedLocalStreams[r.id].push(n):this._shimmedLocalStreams[r.id]=[r,n],n};var r=e.RTCPeerConnection.prototype.addStream;e.RTCPeerConnection.prototype.addStream=function(e){var t=this;this._shimmedLocalStreams=this._shimmedLocalStreams||{},e.getTracks().forEach((function(e){if(t.getSenders().find((function(t){return t.track===e})))throw new DOMException("Track already exists.","InvalidAccessError")}));var n=this.getSenders();r.apply(this,arguments);var i=this.getSenders().filter((function(e){return-1===n.indexOf(e)}));this._shimmedLocalStreams[e.id]=[e].concat(i)};var n=e.RTCPeerConnection.prototype.removeStream;e.RTCPeerConnection.prototype.removeStream=function(e){return this._shimmedLocalStreams=this._shimmedLocalStreams||{},delete this._shimmedLocalStreams[e.id],n.apply(this,arguments)};var i=e.RTCPeerConnection.prototype.removeTrack;e.RTCPeerConnection.prototype.removeTrack=function(e){var t=this;return this._shimmedLocalStreams=this._shimmedLocalStreams||{},e&&Object.keys(this._shimmedLocalStreams).forEach((function(r){var n=t._shimmedLocalStreams[r].indexOf(e);-1!==n&&t._shimmedLocalStreams[r].splice(n,1),1===t._shimmedLocalStreams[r].length&&delete t._shimmedLocalStreams[r]})),i.apply(this,arguments)}}function U(e,t){var r=function(e,t){var r=t.sdp;return Object.keys(e._reverseStreams||[]).forEach((function(t){var n=e._reverseStreams[t],i=e._streams[n.id];r=r.replace(new RegExp(i.id,"g"),n.id)})),new RTCSessionDescription({type:t.type,sdp:r})},n=function(e,t){var r=t.sdp;return Object.keys(e._reverseStreams||[]).forEach((function(t){var n=e._reverseStreams[t],i=e._streams[n.id];r=r.replace(new RegExp(n.id,"g"),i.id)})),new RTCSessionDescription({type:t.type,sdp:r})};if(e.RTCPeerConnection){if(e.RTCPeerConnection.prototype.addTrack&&t.version>=65)return F(e);var i=e.RTCPeerConnection.prototype.getLocalStreams;e.RTCPeerConnection.prototype.getLocalStreams=function(){var e=this,t=i.apply(this);return this._reverseStreams=this._reverseStreams||{},t.map((function(t){return e._reverseStreams[t.id]}))};var a=e.RTCPeerConnection.prototype.addStream;e.RTCPeerConnection.prototype.addStream=function(t){var r=this;if(this._streams=this._streams||{},this._reverseStreams=this._reverseStreams||{},t.getTracks().forEach((function(e){if(r.getSenders().find((function(t){return t.track===e})))throw new DOMException("Track already exists.","InvalidAccessError")})),!this._reverseStreams[t.id]){var n=new e.MediaStream(t.getTracks());this._streams[t.id]=n,this._reverseStreams[n.id]=t,t=n}a.apply(this,[t])};var s=e.RTCPeerConnection.prototype.removeStream;e.RTCPeerConnection.prototype.removeStream=function(e){this._streams=this._streams||{},this._reverseStreams=this._reverseStreams||{},s.apply(this,[this._streams[e.id]||e]),delete this._reverseStreams[this._streams[e.id]?this._streams[e.id].id:e.id],delete this._streams[e.id]},e.RTCPeerConnection.prototype.addTrack=function(t,r){if("closed"===this.signalingState)throw new DOMException("The RTCPeerConnection's signalingState is 'closed'.","InvalidStateError");var n=[].slice.call(arguments,1);if(1!==n.length||!n[0].getTracks().find((function(e){return e===t})))throw new DOMException("The adapter.js addTrack polyfill only supports a single  stream which is associated with the specified track.","NotSupportedError");var i=this.getSenders().find((function(e){return e.track===t}));if(i)throw new DOMException("Track already exists.","InvalidAccessError");this._streams=this._streams||{},this._reverseStreams=this._reverseStreams||{};var o=this._streams[r.id];if(o){var a=this;o.addTrack(t),Promise.resolve().then((function(){a.dispatchEvent(new Event("negotiationneeded"))}))}else{var s=new e.MediaStream([t]);this._streams[r.id]=s,this._reverseStreams[s.id]=r,this.addStream(s)}return this.getSenders().find((function(e){return e.track===t}))},["createOffer","createAnswer"].forEach((function(t){var n=e.RTCPeerConnection.prototype[t],i=o({},t,(function(){var e=this,t=arguments,i=arguments.length&&"function"==typeof arguments[0];return i?n.apply(this,[function(n){var i=r(e,n);t[0].apply(null,[i])},function(e){t[1]&&t[1].apply(null,e)},arguments[2]]):n.apply(this,arguments).then((function(t){return r(e,t)}))}));e.RTCPeerConnection.prototype[t]=i[t]}));var c=e.RTCPeerConnection.prototype.setLocalDescription;e.RTCPeerConnection.prototype.setLocalDescription=function(){return arguments.length&&arguments[0].type?(arguments[0]=n(this,arguments[0]),c.apply(this,arguments)):c.apply(this,arguments)};var p=Object.getOwnPropertyDescriptor(e.RTCPeerConnection.prototype,"localDescription");Object.defineProperty(e.RTCPeerConnection.prototype,"localDescription",{get:function(){var e=p.get.apply(this);return""===e.type?e:r(this,e)}}),e.RTCPeerConnection.prototype.removeTrack=function(e){var t,r=this;if("closed"===this.signalingState)throw new DOMException("The RTCPeerConnection's signalingState is 'closed'.","InvalidStateError");if(!e._pc)throw new DOMException("Argument 1 of RTCPeerConnection.removeTrack does not implement interface RTCRtpSender.","TypeError");if(!(e._pc===this))throw new DOMException("Sender was not created by this connection.","InvalidAccessError");this._streams=this._streams||{},Object.keys(this._streams).forEach((function(n){r._streams[n].getTracks().find((function(t){return e.track===t}))&&(t=r._streams[n])})),t&&(1===t.getTracks().length?this.removeStream(this._reverseStreams[t.id]):t.removeTrack(e.track),this.dispatchEvent(new Event("negotiationneeded")))}}}function z(e,t){!e.RTCPeerConnection&&e.webkitRTCPeerConnection&&(e.RTCPeerConnection=e.webkitRTCPeerConnection),e.RTCPeerConnection&&t.version<53&&["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach((function(t){var r=e.RTCPeerConnection.prototype[t],n=o({},t,(function(){return arguments[0]=new("addIceCandidate"===t?e.RTCIceCandidate:e.RTCSessionDescription)(arguments[0]),r.apply(this,arguments)}));e.RTCPeerConnection.prototype[t]=n[t]}))}function G(e,t){C(e,"negotiationneeded",(function(e){var r=e.target;if(!(t.version<72||r.getConfiguration&&"plan-b"===r.getConfiguration().sdpSemantics)||"stable"===r.signalingState)return e}))}var V={};t(V,"shimPeerConnection",(function(){return ee})),t(V,"shimReplaceTrack",(function(){return te})),t(V,"shimGetUserMedia",(function(){return Z})),t(V,"shimGetDisplayMedia",(function(){return $}));var J,W={},H={};function K(e,t,r,n,i){var o=W.writeRtpDescription(e.kind,t);if(o+=W.writeIceParameters(e.iceGatherer.getLocalParameters()),o+=W.writeDtlsParameters(e.dtlsTransport.getLocalParameters(),"offer"===r?"actpass":i||"active"),o+="a=mid:"+e.mid+"\r\n",e.rtpSender&&e.rtpReceiver?o+="a=sendrecv\r\n":e.rtpSender?o+="a=sendonly\r\n":e.rtpReceiver?o+="a=recvonly\r\n":o+="a=inactive\r\n",e.rtpSender){var a=e.rtpSender._initialTrackId||e.rtpSender.track.id;e.rtpSender._initialTrackId=a;var s="msid:"+(n?n.id:"-")+" "+a+"\r\n";o+="a="+s,o+="a=ssrc:"+e.sendEncodingParameters[0].ssrc+" "+s,e.sendEncodingParameters[0].rtx&&(o+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" "+s,o+="a=ssrc-group:FID "+e.sendEncodingParameters[0].ssrc+" "+e.sendEncodingParameters[0].rtx.ssrc+"\r\n")}return o+="a=ssrc:"+e.sendEncodingParameters[0].ssrc+" cname:"+W.localCName+"\r\n",e.rtpSender&&e.sendEncodingParameters[0].rtx&&(o+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" cname:"+W.localCName+"\r\n"),o}function Y(e,t){var r={codecs:[],headerExtensions:[],fecMechanisms:[]},n=function(e,t){e=parseInt(e,10);for(var r=0;r<t.length;r++)if(t[r].payloadType===e||t[r].preferredPayloadType===e)return t[r]},i=function(e,t,r,i){var o=n(e.parameters.apt,r),a=n(t.parameters.apt,i);return o&&a&&o.name.toLowerCase()===a.name.toLowerCase()};return e.codecs.forEach((function(n){for(var o=0;o<t.codecs.length;o++){var a=t.codecs[o];if(n.name.toLowerCase()===a.name.toLowerCase()&&n.clockRate===a.clockRate){if("rtx"===n.name.toLowerCase()&&n.parameters&&a.parameters.apt&&!i(n,a,e.codecs,t.codecs))continue;(a=JSON.parse(JSON.stringify(a))).numChannels=Math.min(n.numChannels,a.numChannels),r.codecs.push(a),a.rtcpFeedback=a.rtcpFeedback.filter((function(e){for(var t=0;t<n.rtcpFeedback.length;t++)if(n.rtcpFeedback[t].type===e.type&&n.rtcpFeedback[t].parameter===e.parameter)return!0;return!1}));break}}})),e.headerExtensions.forEach((function(e){for(var n=0;n<t.headerExtensions.length;n++){var i=t.headerExtensions[n];if(e.uri===i.uri){r.headerExtensions.push(i);break}}})),r}function q(e,t,r){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"]}}[t][e].indexOf(r)}function Q(e,t){var r=e.getRemoteCandidates().find((function(e){return t.foundation===e.foundation&&t.ip===e.ip&&t.port===e.port&&t.priority===e.priority&&t.protocol===e.protocol&&t.type===e.type}));return r||e.addRemoteCandidate(t),!r}function X(e,t){var r=new Error(t);return r.name=e,r.code={NotSupportedError:9,InvalidStateError:11,InvalidAccessError:15,TypeError:void 0,OperationError:void 0}[e],r}function Z(e){var t=e&&e.navigator,r=t.mediaDevices.getUserMedia.bind(t.mediaDevices);t.mediaDevices.getUserMedia=function(e){return r(e).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))}))}}function $(e){"getDisplayMedia"in e.navigator&&e.navigator.mediaDevices&&(e.navigator.mediaDevices&&"getDisplayMedia"in e.navigator.mediaDevices||(e.navigator.mediaDevices.getDisplayMedia=e.navigator.getDisplayMedia.bind(e.navigator)))}function ee(t,r){if(t.RTCIceGatherer&&(t.RTCIceCandidate||(t.RTCIceCandidate=function(e){return e}),t.RTCSessionDescription||(t.RTCSessionDescription=function(e){return e}),r.version<15025)){var n=Object.getOwnPropertyDescriptor(t.MediaStreamTrack.prototype,"enabled");Object.defineProperty(t.MediaStreamTrack.prototype,"enabled",{set:function(e){n.set.call(this,e);var t=new Event("enabled");t.enabled=e,this.dispatchEvent(t)}})}t.RTCRtpSender&&!("dtmf"in t.RTCRtpSender.prototype)&&Object.defineProperty(t.RTCRtpSender.prototype,"dtmf",{get:function(){return void 0===this._dtmf&&("audio"===this.track.kind?this._dtmf=new t.RTCDtmfSender(this):"video"===this.track.kind&&(this._dtmf=null)),this._dtmf}}),t.RTCDtmfSender&&!t.RTCDTMFSender&&(t.RTCDTMFSender=t.RTCDtmfSender);var i=e(J)(t,r.version);t.RTCPeerConnection=function(e){var t,n;return e&&e.iceServers&&(e.iceServers=(t=e.iceServers,r.version,n=!1,(t=JSON.parse(JSON.stringify(t))).filter((function(e){if(e&&(e.urls||e.url)){var t=e.urls||e.url;e.url&&!e.urls&&k("RTCIceServer.url","RTCIceServer.urls");var r="string"==typeof t;return r&&(t=[t]),t=t.filter((function(e){if(0===e.indexOf("stun:"))return!1;var t=e.startsWith("turn")&&!e.startsWith("turn:[")&&e.includes("transport=udp");return t&&!n?(n=!0,!0):t&&!n})),delete e.url,e.urls=r?t[0]:t,!!t.length}}))),T("ICE servers after filtering:",e.iceServers)),new i(e)},t.RTCPeerConnection.prototype=i.prototype}function te(e){e.RTCRtpSender&&!("replaceTrack"in e.RTCRtpSender.prototype)&&(e.RTCRtpSender.prototype.replaceTrack=e.RTCRtpSender.prototype.setTrack)}H.generateIdentifier=function(){return Math.random().toString(36).substr(2,10)},H.localCName=H.generateIdentifier(),H.splitLines=function(e){return e.trim().split("\n").map((function(e){return e.trim()}))},H.splitSections=function(e){return e.split("\nm=").map((function(e,t){return(t>0?"m="+e:e).trim()+"\r\n"}))},H.getDescription=function(e){var t=H.splitSections(e);return t&&t[0]},H.getMediaSections=function(e){var t=H.splitSections(e);return t.shift(),t},H.matchPrefix=function(e,t){return H.splitLines(e).filter((function(e){return 0===e.indexOf(t)}))},H.parseCandidate=function(e){for(var t,r={foundation:(t=0===e.indexOf("a=candidate:")?e.substring(12).split(" "):e.substring(10).split(" "))[0],component:parseInt(t[1],10),protocol:t[2].toLowerCase(),priority:parseInt(t[3],10),ip:t[4],address:t[4],port:parseInt(t[5],10),type:t[7]},n=8;n<t.length;n+=2)switch(t[n]){case"raddr":r.relatedAddress=t[n+1];break;case"rport":r.relatedPort=parseInt(t[n+1],10);break;case"tcptype":r.tcpType=t[n+1];break;case"ufrag":r.ufrag=t[n+1],r.usernameFragment=t[n+1];break;default:r[t[n]]=t[n+1]}return r},H.writeCandidate=function(e){var t=[];t.push(e.foundation),t.push(e.component),t.push(e.protocol.toUpperCase()),t.push(e.priority),t.push(e.address||e.ip),t.push(e.port);var r=e.type;return t.push("typ"),t.push(r),"host"!==r&&e.relatedAddress&&e.relatedPort&&(t.push("raddr"),t.push(e.relatedAddress),t.push("rport"),t.push(e.relatedPort)),e.tcpType&&"tcp"===e.protocol.toLowerCase()&&(t.push("tcptype"),t.push(e.tcpType)),(e.usernameFragment||e.ufrag)&&(t.push("ufrag"),t.push(e.usernameFragment||e.ufrag)),"candidate:"+t.join(" ")},H.parseIceOptions=function(e){return e.substr(14).split(" ")},H.parseRtpMap=function(e){var t=e.substr(9).split(" "),r={payloadType:parseInt(t.shift(),10)};return t=t[0].split("/"),r.name=t[0],r.clockRate=parseInt(t[1],10),r.channels=3===t.length?parseInt(t[2],10):1,r.numChannels=r.channels,r},H.writeRtpMap=function(e){var t=e.payloadType;void 0!==e.preferredPayloadType&&(t=e.preferredPayloadType);var r=e.channels||e.numChannels||1;return"a=rtpmap:"+t+" "+e.name+"/"+e.clockRate+(1!==r?"/"+r:"")+"\r\n"},H.parseExtmap=function(e){var t=e.substr(9).split(" ");return{id:parseInt(t[0],10),direction:t[0].indexOf("/")>0?t[0].split("/")[1]:"sendrecv",uri:t[1]}},H.writeExtmap=function(e){return"a=extmap:"+(e.id||e.preferredId)+(e.direction&&"sendrecv"!==e.direction?"/"+e.direction:"")+" "+e.uri+"\r\n"},H.parseFmtp=function(e){for(var t,r={},n=e.substr(e.indexOf(" ")+1).split(";"),i=0;i<n.length;i++)r[(t=n[i].trim().split("="))[0].trim()]=t[1];return r},H.writeFmtp=function(e){var t="",r=e.payloadType;if(void 0!==e.preferredPayloadType&&(r=e.preferredPayloadType),e.parameters&&Object.keys(e.parameters).length){var n=[];Object.keys(e.parameters).forEach((function(t){e.parameters[t]?n.push(t+"="+e.parameters[t]):n.push(t)})),t+="a=fmtp:"+r+" "+n.join(";")+"\r\n"}return t},H.parseRtcpFb=function(e){var t=e.substr(e.indexOf(" ")+1).split(" ");return{type:t.shift(),parameter:t.join(" ")}},H.writeRtcpFb=function(e){var t="",r=e.payloadType;return void 0!==e.preferredPayloadType&&(r=e.preferredPayloadType),e.rtcpFeedback&&e.rtcpFeedback.length&&e.rtcpFeedback.forEach((function(e){t+="a=rtcp-fb:"+r+" "+e.type+(e.parameter&&e.parameter.length?" "+e.parameter:"")+"\r\n"})),t},H.parseSsrcMedia=function(e){var t=e.indexOf(" "),r={ssrc:parseInt(e.substr(7,t-7),10)},n=e.indexOf(":",t);return n>-1?(r.attribute=e.substr(t+1,n-t-1),r.value=e.substr(n+1)):r.attribute=e.substr(t+1),r},H.parseSsrcGroup=function(e){var t=e.substr(13).split(" ");return{semantics:t.shift(),ssrcs:t.map((function(e){return parseInt(e,10)}))}},H.getMid=function(e){var t=H.matchPrefix(e,"a=mid:")[0];if(t)return t.substr(6)},H.parseFingerprint=function(e){var t=e.substr(14).split(" ");return{algorithm:t[0].toLowerCase(),value:t[1]}},H.getDtlsParameters=function(e,t){return{role:"auto",fingerprints:H.matchPrefix(e+t,"a=fingerprint:").map(H.parseFingerprint)}},H.writeDtlsParameters=function(e,t){var r="a=setup:"+t+"\r\n";return e.fingerprints.forEach((function(e){r+="a=fingerprint:"+e.algorithm+" "+e.value+"\r\n"})),r},H.parseCryptoLine=function(e){var t=e.substr(9).split(" ");return{tag:parseInt(t[0],10),cryptoSuite:t[1],keyParams:t[2],sessionParams:t.slice(3)}},H.writeCryptoLine=function(e){return"a=crypto:"+e.tag+" "+e.cryptoSuite+" "+("object"==typeof e.keyParams?H.writeCryptoKeyParams(e.keyParams):e.keyParams)+(e.sessionParams?" "+e.sessionParams.join(" "):"")+"\r\n"},H.parseCryptoKeyParams=function(e){if(0!==e.indexOf("inline:"))return null;var t=e.substr(7).split("|");return{keyMethod:"inline",keySalt:t[0],lifeTime:t[1],mkiValue:t[2]?t[2].split(":")[0]:void 0,mkiLength:t[2]?t[2].split(":")[1]:void 0}},H.writeCryptoKeyParams=function(e){return e.keyMethod+":"+e.keySalt+(e.lifeTime?"|"+e.lifeTime:"")+(e.mkiValue&&e.mkiLength?"|"+e.mkiValue+":"+e.mkiLength:"")},H.getCryptoParameters=function(e,t){return H.matchPrefix(e+t,"a=crypto:").map(H.parseCryptoLine)},H.getIceParameters=function(e,t){var r=H.matchPrefix(e+t,"a=ice-ufrag:")[0],n=H.matchPrefix(e+t,"a=ice-pwd:")[0];return r&&n?{usernameFragment:r.substr(12),password:n.substr(10)}:null},H.writeIceParameters=function(e){return"a=ice-ufrag:"+e.usernameFragment+"\r\na=ice-pwd:"+e.password+"\r\n"},H.parseRtpParameters=function(e){for(var t={codecs:[],headerExtensions:[],fecMechanisms:[],rtcp:[]},r=H.splitLines(e)[0].split(" "),n=3;n<r.length;n++){var i=r[n],o=H.matchPrefix(e,"a=rtpmap:"+i+" ")[0];if(o){var a=H.parseRtpMap(o),s=H.matchPrefix(e,"a=fmtp:"+i+" ");switch(a.parameters=s.length?H.parseFmtp(s[0]):{},a.rtcpFeedback=H.matchPrefix(e,"a=rtcp-fb:"+i+" ").map(H.parseRtcpFb),t.codecs.push(a),a.name.toUpperCase()){case"RED":case"ULPFEC":t.fecMechanisms.push(a.name.toUpperCase())}}}return H.matchPrefix(e,"a=extmap:").forEach((function(e){t.headerExtensions.push(H.parseExtmap(e))})),t},H.writeRtpDescription=function(e,t){var r="";r+="m="+e+" ",r+=t.codecs.length>0?"9":"0",r+=" UDP/TLS/RTP/SAVPF ",r+=t.codecs.map((function(e){return void 0!==e.preferredPayloadType?e.preferredPayloadType:e.payloadType})).join(" ")+"\r\n",r+="c=IN IP4 0.0.0.0\r\n",r+="a=rtcp:9 IN IP4 0.0.0.0\r\n",t.codecs.forEach((function(e){r+=H.writeRtpMap(e),r+=H.writeFmtp(e),r+=H.writeRtcpFb(e)}));var n=0;return t.codecs.forEach((function(e){e.maxptime>n&&(n=e.maxptime)})),n>0&&(r+="a=maxptime:"+n+"\r\n"),r+="a=rtcp-mux\r\n",t.headerExtensions&&t.headerExtensions.forEach((function(e){r+=H.writeExtmap(e)})),r},H.parseRtpEncodingParameters=function(e){var t,r=[],n=H.parseRtpParameters(e),i=-1!==n.fecMechanisms.indexOf("RED"),o=-1!==n.fecMechanisms.indexOf("ULPFEC"),a=H.matchPrefix(e,"a=ssrc:").map((function(e){return H.parseSsrcMedia(e)})).filter((function(e){return"cname"===e.attribute})),s=a.length>0&&a[0].ssrc,c=H.matchPrefix(e,"a=ssrc-group:FID").map((function(e){return e.substr(17).split(" ").map((function(e){return parseInt(e,10)}))}));c.length>0&&c[0].length>1&&c[0][0]===s&&(t=c[0][1]),n.codecs.forEach((function(e){if("RTX"===e.name.toUpperCase()&&e.parameters.apt){var n={ssrc:s,codecPayloadType:parseInt(e.parameters.apt,10)};s&&t&&(n.rtx={ssrc:t}),r.push(n),i&&((n=JSON.parse(JSON.stringify(n))).fec={ssrc:s,mechanism:o?"red+ulpfec":"red"},r.push(n))}})),0===r.length&&s&&r.push({ssrc:s});var p=H.matchPrefix(e,"b=");return p.length&&(p=0===p[0].indexOf("b=TIAS:")?parseInt(p[0].substr(7),10):0===p[0].indexOf("b=AS:")?950*parseInt(p[0].substr(5),10)-16e3:void 0,r.forEach((function(e){e.maxBitrate=p}))),r},H.parseRtcpParameters=function(e){var t={},r=H.matchPrefix(e,"a=ssrc:").map((function(e){return H.parseSsrcMedia(e)})).filter((function(e){return"cname"===e.attribute}))[0];r&&(t.cname=r.value,t.ssrc=r.ssrc);var n=H.matchPrefix(e,"a=rtcp-rsize");t.reducedSize=n.length>0,t.compound=0===n.length;var i=H.matchPrefix(e,"a=rtcp-mux");return t.mux=i.length>0,t},H.parseMsid=function(e){var t,r=H.matchPrefix(e,"a=msid:");if(1===r.length)return{stream:(t=r[0].substr(7).split(" "))[0],track:t[1]};var n=H.matchPrefix(e,"a=ssrc:").map((function(e){return H.parseSsrcMedia(e)})).filter((function(e){return"msid"===e.attribute}));return n.length>0?{stream:(t=n[0].value.split(" "))[0],track:t[1]}:void 0},H.parseSctpDescription=function(e){var t,r=H.parseMLine(e),n=H.matchPrefix(e,"a=max-message-size:");n.length>0&&(t=parseInt(n[0].substr(19),10)),isNaN(t)&&(t=65536);var i=H.matchPrefix(e,"a=sctp-port:");if(i.length>0)return{port:parseInt(i[0].substr(12),10),protocol:r.fmt,maxMessageSize:t};if(H.matchPrefix(e,"a=sctpmap:").length>0){var o=H.matchPrefix(e,"a=sctpmap:")[0].substr(10).split(" ");return{port:parseInt(o[0],10),protocol:o[1],maxMessageSize:t}}},H.writeSctpDescription=function(e,t){var r=[];return r="DTLS/SCTP"!==e.protocol?["m="+e.kind+" 9 "+e.protocol+" "+t.protocol+"\r\n","c=IN IP4 0.0.0.0\r\n","a=sctp-port:"+t.port+"\r\n"]:["m="+e.kind+" 9 "+e.protocol+" "+t.port+"\r\n","c=IN IP4 0.0.0.0\r\n","a=sctpmap:"+t.port+" "+t.protocol+" 65535\r\n"],void 0!==t.maxMessageSize&&r.push("a=max-message-size:"+t.maxMessageSize+"\r\n"),r.join("")},H.generateSessionId=function(){return Math.random().toString().substr(2,21)},H.writeSessionBoilerplate=function(e,t,r){var n=void 0!==t?t:2;return"v=0\r\no="+(r||"thisisadapterortc")+" "+(e||H.generateSessionId())+" "+n+" IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\n"},H.writeMediaSection=function(e,t,r,n){var i=H.writeRtpDescription(e.kind,t);if(i+=H.writeIceParameters(e.iceGatherer.getLocalParameters()),i+=H.writeDtlsParameters(e.dtlsTransport.getLocalParameters(),"offer"===r?"actpass":"active"),i+="a=mid:"+e.mid+"\r\n",e.direction?i+="a="+e.direction+"\r\n":e.rtpSender&&e.rtpReceiver?i+="a=sendrecv\r\n":e.rtpSender?i+="a=sendonly\r\n":e.rtpReceiver?i+="a=recvonly\r\n":i+="a=inactive\r\n",e.rtpSender){var o="msid:"+n.id+" "+e.rtpSender.track.id+"\r\n";i+="a="+o,i+="a=ssrc:"+e.sendEncodingParameters[0].ssrc+" "+o,e.sendEncodingParameters[0].rtx&&(i+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" "+o,i+="a=ssrc-group:FID "+e.sendEncodingParameters[0].ssrc+" "+e.sendEncodingParameters[0].rtx.ssrc+"\r\n")}return i+="a=ssrc:"+e.sendEncodingParameters[0].ssrc+" cname:"+H.localCName+"\r\n",e.rtpSender&&e.sendEncodingParameters[0].rtx&&(i+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" cname:"+H.localCName+"\r\n"),i},H.getDirection=function(e,t){for(var r=H.splitLines(e),n=0;n<r.length;n++)switch(r[n]){case"a=sendrecv":case"a=sendonly":case"a=recvonly":case"a=inactive":return r[n].substr(2)}return t?H.getDirection(t):"sendrecv"},H.getKind=function(e){return H.splitLines(e)[0].split(" ")[0].substr(2)},H.isRejected=function(e){return"0"===e.split(" ",2)[1]},H.parseMLine=function(e){var t=H.splitLines(e)[0].substr(2).split(" ");return{kind:t[0],port:parseInt(t[1],10),protocol:t[2],fmt:t.slice(3).join(" ")}},H.parseOLine=function(e){var t=H.matchPrefix(e,"o=")[0].substr(2).split(" ");return{username:t[0],sessionId:t[1],sessionVersion:parseInt(t[2],10),netType:t[3],addressType:t[4],address:t[5]}},H.isValidSDP=function(e){if("string"!=typeof e||0===e.length)return!1;for(var t=H.splitLines(e),r=0;r<t.length;r++)if(t[r].length<2||"="!==t[r].charAt(1))return!1;return!0},W=H,J=function(e,t){var r=function(t,r){r.addTrack(t),r.dispatchEvent(new e.MediaStreamTrackEvent("addtrack",{track:t}))},n=function(t,r,n,i){var o=new Event("track");o.track=r,o.receiver=n,o.transceiver={receiver:n},o.streams=i,e.setTimeout((function(){t._dispatchEvent("track",o)}))},i=function(r){var n=this,i=document.createDocumentFragment();if(["addEventListener","removeEventListener","dispatchEvent"].forEach((function(e){n[e]=i[e].bind(i)})),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",r=JSON.parse(JSON.stringify(r||{})),this.usingBundle="max-bundle"===r.bundlePolicy,"negotiate"===r.rtcpMuxPolicy)throw X("NotSupportedError","rtcpMuxPolicy 'negotiate' is not supported");switch(r.rtcpMuxPolicy||(r.rtcpMuxPolicy="require"),r.iceTransportPolicy){case"all":case"relay":break;default:r.iceTransportPolicy="all"}switch(r.bundlePolicy){case"balanced":case"max-compat":case"max-bundle":break;default:r.bundlePolicy="balanced"}if(r.iceServers=function(e,t){var r=!1;return(e=JSON.parse(JSON.stringify(e))).filter((function(e){if(e&&(e.urls||e.url)){var n=e.urls||e.url;e.url&&!e.urls&&console.warn("RTCIceServer.url is deprecated! Use urls instead.");var i="string"==typeof n;return i&&(n=[n]),n=n.filter((function(e){return 0!==e.indexOf("turn:")||-1===e.indexOf("transport=udp")||-1!==e.indexOf("turn:[")||r?0===e.indexOf("stun:")&&t>=14393&&-1===e.indexOf("?transport=udp"):(r=!0,!0)})),delete e.url,e.urls=i?n[0]:n,!!n.length}}))}(r.iceServers||[],t),this._iceGatherers=[],r.iceCandidatePoolSize)for(var o=r.iceCandidatePoolSize;o>0;o--)this._iceGatherers.push(new e.RTCIceGatherer({iceServers:r.iceServers,gatherPolicy:r.iceTransportPolicy}));else r.iceCandidatePoolSize=0;this._config=r,this.transceivers=[],this._sdpSessionId=W.generateSessionId(),this._sdpSessionVersion=0,this._dtlsRole=void 0,this._isClosed=!1};Object.defineProperty(i.prototype,"localDescription",{configurable:!0,get:function(){return this._localDescription}}),Object.defineProperty(i.prototype,"remoteDescription",{configurable:!0,get:function(){return this._remoteDescription}}),i.prototype.onicecandidate=null,i.prototype.onaddstream=null,i.prototype.ontrack=null,i.prototype.onremovestream=null,i.prototype.onsignalingstatechange=null,i.prototype.oniceconnectionstatechange=null,i.prototype.onconnectionstatechange=null,i.prototype.onicegatheringstatechange=null,i.prototype.onnegotiationneeded=null,i.prototype.ondatachannel=null,i.prototype._dispatchEvent=function(e,t){this._isClosed||(this.dispatchEvent(t),"function"==typeof this["on"+e]&&this["on"+e](t))},i.prototype._emitGatheringStateChange=function(){var e=new Event("icegatheringstatechange");this._dispatchEvent("icegatheringstatechange",e)},i.prototype.getConfiguration=function(){return this._config},i.prototype.getLocalStreams=function(){return this.localStreams},i.prototype.getRemoteStreams=function(){return this.remoteStreams},i.prototype._createTransceiver=function(e,t){var r=this.transceivers.length>0,n={track:null,iceGatherer:null,iceTransport:null,dtlsTransport:null,localCapabilities:null,remoteCapabilities:null,rtpSender:null,rtpReceiver:null,kind:e,mid:null,sendEncodingParameters:null,recvEncodingParameters:null,stream:null,associatedRemoteMediaStreams:[],wantReceive:!0};if(this.usingBundle&&r)n.iceTransport=this.transceivers[0].iceTransport,n.dtlsTransport=this.transceivers[0].dtlsTransport;else{var i=this._createIceAndDtlsTransports();n.iceTransport=i.iceTransport,n.dtlsTransport=i.dtlsTransport}return t||this.transceivers.push(n),n},i.prototype.addTrack=function(t,r){if(this._isClosed)throw X("InvalidStateError","Attempted to call addTrack on a closed peerconnection.");var n;if(this.transceivers.find((function(e){return e.track===t})))throw X("InvalidAccessError","Track already exists.");for(var i=0;i<this.transceivers.length;i++)this.transceivers[i].track||this.transceivers[i].kind!==t.kind||(n=this.transceivers[i]);return n||(n=this._createTransceiver(t.kind)),this._maybeFireNegotiationNeeded(),-1===this.localStreams.indexOf(r)&&this.localStreams.push(r),n.track=t,n.stream=r,n.rtpSender=new e.RTCRtpSender(t,n.dtlsTransport),n.rtpSender},i.prototype.addStream=function(e){var r=this;if(t>=15025)e.getTracks().forEach((function(t){r.addTrack(t,e)}));else{var n=e.clone();e.getTracks().forEach((function(e,t){var r=n.getTracks()[t];e.addEventListener("enabled",(function(e){r.enabled=e.enabled}))})),n.getTracks().forEach((function(e){r.addTrack(e,n)}))}},i.prototype.removeTrack=function(t){if(this._isClosed)throw X("InvalidStateError","Attempted to call removeTrack on a closed peerconnection.");if(!(t instanceof e.RTCRtpSender))throw new TypeError("Argument 1 of RTCPeerConnection.removeTrack does not implement interface RTCRtpSender.");var r=this.transceivers.find((function(e){return e.rtpSender===t}));if(!r)throw X("InvalidAccessError","Sender was not created by this connection.");var n=r.stream;r.rtpSender.stop(),r.rtpSender=null,r.track=null,r.stream=null,-1===this.transceivers.map((function(e){return e.stream})).indexOf(n)&&this.localStreams.indexOf(n)>-1&&this.localStreams.splice(this.localStreams.indexOf(n),1),this._maybeFireNegotiationNeeded()},i.prototype.removeStream=function(e){var t=this;e.getTracks().forEach((function(e){var r=t.getSenders().find((function(t){return t.track===e}));r&&t.removeTrack(r)}))},i.prototype.getSenders=function(){return this.transceivers.filter((function(e){return!!e.rtpSender})).map((function(e){return e.rtpSender}))},i.prototype.getReceivers=function(){return this.transceivers.filter((function(e){return!!e.rtpReceiver})).map((function(e){return e.rtpReceiver}))},i.prototype._createIceGatherer=function(t,r){var n=this;if(r&&t>0)return this.transceivers[0].iceGatherer;if(this._iceGatherers.length)return this._iceGatherers.shift();var i=new e.RTCIceGatherer({iceServers:this._config.iceServers,gatherPolicy:this._config.iceTransportPolicy});return Object.defineProperty(i,"state",{value:"new",writable:!0}),this.transceivers[t].bufferedCandidateEvents=[],this.transceivers[t].bufferCandidates=function(e){var r=!e.candidate||0===Object.keys(e.candidate).length;i.state=r?"completed":"gathering",null!==n.transceivers[t].bufferedCandidateEvents&&n.transceivers[t].bufferedCandidateEvents.push(e)},i.addEventListener("localcandidate",this.transceivers[t].bufferCandidates),i},i.prototype._gather=function(t,r){var n=this,i=this.transceivers[r].iceGatherer;if(!i.onlocalcandidate){var o=this.transceivers[r].bufferedCandidateEvents;this.transceivers[r].bufferedCandidateEvents=null,i.removeEventListener("localcandidate",this.transceivers[r].bufferCandidates),i.onlocalcandidate=function(e){if(!(n.usingBundle&&r>0)){var o=new Event("icecandidate");o.candidate={sdpMid:t,sdpMLineIndex:r};var a=e.candidate,s=!a||0===Object.keys(a).length;if(s)"new"!==i.state&&"gathering"!==i.state||(i.state="completed");else{"new"===i.state&&(i.state="gathering"),a.component=1,a.ufrag=i.getLocalParameters().usernameFragment;var c=W.writeCandidate(a);o.candidate=Object.assign(o.candidate,W.parseCandidate(c)),o.candidate.candidate=c,o.candidate.toJSON=function(){return{candidate:o.candidate.candidate,sdpMid:o.candidate.sdpMid,sdpMLineIndex:o.candidate.sdpMLineIndex,usernameFragment:o.candidate.usernameFragment}}}var p=W.getMediaSections(n._localDescription.sdp);p[o.candidate.sdpMLineIndex]+=s?"a=end-of-candidates\r\n":"a="+o.candidate.candidate+"\r\n",n._localDescription.sdp=W.getDescription(n._localDescription.sdp)+p.join("");var d=n.transceivers.every((function(e){return e.iceGatherer&&"completed"===e.iceGatherer.state}));"gathering"!==n.iceGatheringState&&(n.iceGatheringState="gathering",n._emitGatheringStateChange()),s||n._dispatchEvent("icecandidate",o),d&&(n._dispatchEvent("icecandidate",new Event("icecandidate")),n.iceGatheringState="complete",n._emitGatheringStateChange())}},e.setTimeout((function(){o.forEach((function(e){i.onlocalcandidate(e)}))}),0)}},i.prototype._createIceAndDtlsTransports=function(){var t=this,r=new e.RTCIceTransport(null);r.onicestatechange=function(){t._updateIceConnectionState(),t._updateConnectionState()};var n=new e.RTCDtlsTransport(r);return n.ondtlsstatechange=function(){t._updateConnectionState()},n.onerror=function(){Object.defineProperty(n,"state",{value:"failed",writable:!0}),t._updateConnectionState()},{iceTransport:r,dtlsTransport:n}},i.prototype._disposeIceAndDtlsTransports=function(e){var t=this.transceivers[e].iceGatherer;t&&(delete t.onlocalcandidate,delete this.transceivers[e].iceGatherer);var r=this.transceivers[e].iceTransport;r&&(delete r.onicestatechange,delete this.transceivers[e].iceTransport);var n=this.transceivers[e].dtlsTransport;n&&(delete n.ondtlsstatechange,delete n.onerror,delete this.transceivers[e].dtlsTransport)},i.prototype._transceive=function(e,r,n){var i=Y(e.localCapabilities,e.remoteCapabilities);r&&e.rtpSender&&(i.encodings=e.sendEncodingParameters,i.rtcp={cname:W.localCName,compound:e.rtcpParameters.compound},e.recvEncodingParameters.length&&(i.rtcp.ssrc=e.recvEncodingParameters[0].ssrc),e.rtpSender.send(i)),n&&e.rtpReceiver&&i.codecs.length>0&&("video"===e.kind&&e.recvEncodingParameters&&t<15019&&e.recvEncodingParameters.forEach((function(e){delete e.rtx})),e.recvEncodingParameters.length?i.encodings=e.recvEncodingParameters:i.encodings=[{}],i.rtcp={compound:e.rtcpParameters.compound},e.rtcpParameters.cname&&(i.rtcp.cname=e.rtcpParameters.cname),e.sendEncodingParameters.length&&(i.rtcp.ssrc=e.sendEncodingParameters[0].ssrc),e.rtpReceiver.receive(i))},i.prototype.setLocalDescription=function(e){var t,r,n=this;if(-1===["offer","answer"].indexOf(e.type))return Promise.reject(X("TypeError",'Unsupported type "'+e.type+'"'));if(!q("setLocalDescription",e.type,n.signalingState)||n._isClosed)return Promise.reject(X("InvalidStateError","Can not set local "+e.type+" in state "+n.signalingState));if("offer"===e.type)t=W.splitSections(e.sdp),r=t.shift(),t.forEach((function(e,t){var r=W.parseRtpParameters(e);n.transceivers[t].localCapabilities=r})),n.transceivers.forEach((function(e,t){n._gather(e.mid,t)}));else if("answer"===e.type){t=W.splitSections(n._remoteDescription.sdp),r=t.shift();var i=W.matchPrefix(r,"a=ice-lite").length>0;t.forEach((function(e,t){var o=n.transceivers[t],a=o.iceGatherer,s=o.iceTransport,c=o.dtlsTransport,p=o.localCapabilities,d=o.remoteCapabilities;if(!(W.isRejected(e)&&0===W.matchPrefix(e,"a=bundle-only").length)&&!o.rejected){var u=W.getIceParameters(e,r),l=W.getDtlsParameters(e,r);i&&(l.role="server"),n.usingBundle&&0!==t||(n._gather(o.mid,t),"new"===s.state&&s.start(a,u,i?"controlling":"controlled"),"new"===c.state&&c.start(l));var f=Y(p,d);n._transceive(o,f.codecs.length>0,!1)}}))}return n._localDescription={type:e.type,sdp:e.sdp},"offer"===e.type?n._updateSignalingState("have-local-offer"):n._updateSignalingState("stable"),Promise.resolve()},i.prototype.setRemoteDescription=function(i){var o=this;if(-1===["offer","answer"].indexOf(i.type))return Promise.reject(X("TypeError",'Unsupported type "'+i.type+'"'));if(!q("setRemoteDescription",i.type,o.signalingState)||o._isClosed)return Promise.reject(X("InvalidStateError","Can not set remote "+i.type+" in state "+o.signalingState));var a={};o.remoteStreams.forEach((function(e){a[e.id]=e}));var s=[],c=W.splitSections(i.sdp),p=c.shift(),d=W.matchPrefix(p,"a=ice-lite").length>0,u=W.matchPrefix(p,"a=group:BUNDLE ").length>0;o.usingBundle=u;var l=W.matchPrefix(p,"a=ice-options:")[0];return o.canTrickleIceCandidates=!!l&&l.substr(14).split(" ").indexOf("trickle")>=0,c.forEach((function(n,c){var l=W.splitLines(n),f=W.getKind(n),h=W.isRejected(n)&&0===W.matchPrefix(n,"a=bundle-only").length,m=l[0].substr(2).split(" ")[2],v=W.getDirection(n,p),y=W.parseMsid(n),g=W.getMid(n)||W.generateIdentifier();if(h||"application"===f&&("DTLS/SCTP"===m||"UDP/DTLS/SCTP"===m))o.transceivers[c]={mid:g,kind:f,protocol:m,rejected:!0};else{var b,C,_,S,T,k,w,P,R;!h&&o.transceivers[c]&&o.transceivers[c].rejected&&(o.transceivers[c]=o._createTransceiver(f,!0));var E,x,D=W.parseRtpParameters(n);h||(E=W.getIceParameters(n,p),(x=W.getDtlsParameters(n,p)).role="client"),w=W.parseRtpEncodingParameters(n);var O=W.parseRtcpParameters(n),I=W.matchPrefix(n,"a=end-of-candidates",p).length>0,M=W.matchPrefix(n,"a=candidate:").map((function(e){return W.parseCandidate(e)})).filter((function(e){return 1===e.component}));if(("offer"===i.type||"answer"===i.type)&&!h&&u&&c>0&&o.transceivers[c]&&(o._disposeIceAndDtlsTransports(c),o.transceivers[c].iceGatherer=o.transceivers[0].iceGatherer,o.transceivers[c].iceTransport=o.transceivers[0].iceTransport,o.transceivers[c].dtlsTransport=o.transceivers[0].dtlsTransport,o.transceivers[c].rtpSender&&o.transceivers[c].rtpSender.setTransport(o.transceivers[0].dtlsTransport),o.transceivers[c].rtpReceiver&&o.transceivers[c].rtpReceiver.setTransport(o.transceivers[0].dtlsTransport)),"offer"!==i.type||h){if("answer"===i.type&&!h){C=(b=o.transceivers[c]).iceGatherer,_=b.iceTransport,S=b.dtlsTransport,T=b.rtpReceiver,k=b.sendEncodingParameters,P=b.localCapabilities,o.transceivers[c].recvEncodingParameters=w,o.transceivers[c].remoteCapabilities=D,o.transceivers[c].rtcpParameters=O,M.length&&"new"===_.state&&(!d&&!I||u&&0!==c?M.forEach((function(e){Q(b.iceTransport,e)})):_.setRemoteCandidates(M)),u&&0!==c||("new"===_.state&&_.start(C,E,"controlling"),"new"===S.state&&S.start(x)),!Y(b.localCapabilities,b.remoteCapabilities).codecs.filter((function(e){return"rtx"===e.name.toLowerCase()})).length&&b.sendEncodingParameters[0].rtx&&delete b.sendEncodingParameters[0].rtx,o._transceive(b,"sendrecv"===v||"recvonly"===v,"sendrecv"===v||"sendonly"===v),!T||"sendrecv"!==v&&"sendonly"!==v?delete b.rtpReceiver:(R=T.track,y?(a[y.stream]||(a[y.stream]=new e.MediaStream),r(R,a[y.stream]),s.push([R,T,a[y.stream]])):(a.default||(a.default=new e.MediaStream),r(R,a.default),s.push([R,T,a.default])))}}else{(b=o.transceivers[c]||o._createTransceiver(f)).mid=g,b.iceGatherer||(b.iceGatherer=o._createIceGatherer(c,u)),M.length&&"new"===b.iceTransport.state&&(!I||u&&0!==c?M.forEach((function(e){Q(b.iceTransport,e)})):b.iceTransport.setRemoteCandidates(M)),P=e.RTCRtpReceiver.getCapabilities(f),t<15019&&(P.codecs=P.codecs.filter((function(e){return"rtx"!==e.name}))),k=b.sendEncodingParameters||[{ssrc:1001*(2*c+2)}];var j,A=!1;if("sendrecv"===v||"sendonly"===v){if(A=!b.rtpReceiver,T=b.rtpReceiver||new e.RTCRtpReceiver(b.dtlsTransport,f),A)R=T.track,y&&"-"===y.stream||(y?(a[y.stream]||(a[y.stream]=new e.MediaStream,Object.defineProperty(a[y.stream],"id",{get:function(){return y.stream}})),Object.defineProperty(R,"id",{get:function(){return y.track}}),j=a[y.stream]):(a.default||(a.default=new e.MediaStream),j=a.default)),j&&(r(R,j),b.associatedRemoteMediaStreams.push(j)),s.push([R,T,j])}else b.rtpReceiver&&b.rtpReceiver.track&&(b.associatedRemoteMediaStreams.forEach((function(t){var r=t.getTracks().find((function(e){return e.id===b.rtpReceiver.track.id}));r&&function(t,r){r.removeTrack(t),r.dispatchEvent(new e.MediaStreamTrackEvent("removetrack",{track:t}))}(r,t)})),b.associatedRemoteMediaStreams=[]);b.localCapabilities=P,b.remoteCapabilities=D,b.rtpReceiver=T,b.rtcpParameters=O,b.sendEncodingParameters=k,b.recvEncodingParameters=w,o._transceive(o.transceivers[c],!1,A)}}})),void 0===o._dtlsRole&&(o._dtlsRole="offer"===i.type?"active":"passive"),o._remoteDescription={type:i.type,sdp:i.sdp},"offer"===i.type?o._updateSignalingState("have-remote-offer"):o._updateSignalingState("stable"),Object.keys(a).forEach((function(t){var r=a[t];if(r.getTracks().length){if(-1===o.remoteStreams.indexOf(r)){o.remoteStreams.push(r);var i=new Event("addstream");i.stream=r,e.setTimeout((function(){o._dispatchEvent("addstream",i)}))}s.forEach((function(e){var t=e[0],i=e[1];r.id===e[2].id&&n(o,t,i,[r])}))}})),s.forEach((function(e){e[2]||n(o,e[0],e[1],[])})),e.setTimeout((function(){o&&o.transceivers&&o.transceivers.forEach((function(e){e.iceTransport&&"new"===e.iceTransport.state&&e.iceTransport.getRemoteCandidates().length>0&&(console.warn("Timeout for addRemoteCandidate. Consider sending an end-of-candidates notification"),e.iceTransport.addRemoteCandidate({}))}))}),4e3),Promise.resolve()},i.prototype.close=function(){this.transceivers.forEach((function(e){e.iceTransport&&e.iceTransport.stop(),e.dtlsTransport&&e.dtlsTransport.stop(),e.rtpSender&&e.rtpSender.stop(),e.rtpReceiver&&e.rtpReceiver.stop()})),this._isClosed=!0,this._updateSignalingState("closed")},i.prototype._updateSignalingState=function(e){this.signalingState=e;var t=new Event("signalingstatechange");this._dispatchEvent("signalingstatechange",t)},i.prototype._maybeFireNegotiationNeeded=function(){var t=this;"stable"===this.signalingState&&!0!==this.needNegotiation&&(this.needNegotiation=!0,e.setTimeout((function(){if(t.needNegotiation){t.needNegotiation=!1;var e=new Event("negotiationneeded");t._dispatchEvent("negotiationneeded",e)}}),0))},i.prototype._updateIceConnectionState=function(){var e,t={new:0,closed:0,checking:0,connected:0,completed:0,disconnected:0,failed:0};if(this.transceivers.forEach((function(e){e.iceTransport&&!e.rejected&&t[e.iceTransport.state]++})),e="new",t.failed>0?e="failed":t.checking>0?e="checking":t.disconnected>0?e="disconnected":t.new>0?e="new":t.connected>0?e="connected":t.completed>0&&(e="completed"),e!==this.iceConnectionState){this.iceConnectionState=e;var r=new Event("iceconnectionstatechange");this._dispatchEvent("iceconnectionstatechange",r)}},i.prototype._updateConnectionState=function(){var e,t={new:0,closed:0,connecting:0,connected:0,completed:0,disconnected:0,failed:0};if(this.transceivers.forEach((function(e){e.iceTransport&&e.dtlsTransport&&!e.rejected&&(t[e.iceTransport.state]++,t[e.dtlsTransport.state]++)})),t.connected+=t.completed,e="new",t.failed>0?e="failed":t.connecting>0?e="connecting":t.disconnected>0?e="disconnected":t.new>0?e="new":t.connected>0&&(e="connected"),e!==this.connectionState){this.connectionState=e;var r=new Event("connectionstatechange");this._dispatchEvent("connectionstatechange",r)}},i.prototype.createOffer=function(){var r=this;if(r._isClosed)return Promise.reject(X("InvalidStateError","Can not call createOffer after close"));var n=r.transceivers.filter((function(e){return"audio"===e.kind})).length,i=r.transceivers.filter((function(e){return"video"===e.kind})).length,o=arguments[0];if(o){if(o.mandatory||o.optional)throw new TypeError("Legacy mandatory/optional constraints not supported.");void 0!==o.offerToReceiveAudio&&(n=!0===o.offerToReceiveAudio?1:!1===o.offerToReceiveAudio?0:o.offerToReceiveAudio),void 0!==o.offerToReceiveVideo&&(i=!0===o.offerToReceiveVideo?1:!1===o.offerToReceiveVideo?0:o.offerToReceiveVideo)}for(r.transceivers.forEach((function(e){"audio"===e.kind?--n<0&&(e.wantReceive=!1):"video"===e.kind&&--i<0&&(e.wantReceive=!1)}));n>0||i>0;)n>0&&(r._createTransceiver("audio"),n--),i>0&&(r._createTransceiver("video"),i--);var a=W.writeSessionBoilerplate(r._sdpSessionId,r._sdpSessionVersion++);r.transceivers.forEach((function(n,i){var o=n.track,a=n.kind,s=n.mid||W.generateIdentifier();n.mid=s,n.iceGatherer||(n.iceGatherer=r._createIceGatherer(i,r.usingBundle));var c=e.RTCRtpSender.getCapabilities(a);t<15019&&(c.codecs=c.codecs.filter((function(e){return"rtx"!==e.name}))),c.codecs.forEach((function(e){"H264"===e.name&&void 0===e.parameters["level-asymmetry-allowed"]&&(e.parameters["level-asymmetry-allowed"]="1"),n.remoteCapabilities&&n.remoteCapabilities.codecs&&n.remoteCapabilities.codecs.forEach((function(t){e.name.toLowerCase()===t.name.toLowerCase()&&e.clockRate===t.clockRate&&(e.preferredPayloadType=t.payloadType)}))})),c.headerExtensions.forEach((function(e){(n.remoteCapabilities&&n.remoteCapabilities.headerExtensions||[]).forEach((function(t){e.uri===t.uri&&(e.id=t.id)}))}));var p=n.sendEncodingParameters||[{ssrc:1001*(2*i+1)}];o&&t>=15019&&"video"===a&&!p[0].rtx&&(p[0].rtx={ssrc:p[0].ssrc+1}),n.wantReceive&&(n.rtpReceiver=new e.RTCRtpReceiver(n.dtlsTransport,a)),n.localCapabilities=c,n.sendEncodingParameters=p})),"max-compat"!==r._config.bundlePolicy&&(a+="a=group:BUNDLE "+r.transceivers.map((function(e){return e.mid})).join(" ")+"\r\n"),a+="a=ice-options:trickle\r\n",r.transceivers.forEach((function(e,t){a+=K(e,e.localCapabilities,"offer",e.stream,r._dtlsRole),a+="a=rtcp-rsize\r\n",!e.iceGatherer||"new"===r.iceGatheringState||0!==t&&r.usingBundle||(e.iceGatherer.getLocalCandidates().forEach((function(e){e.component=1,a+="a="+W.writeCandidate(e)+"\r\n"})),"completed"===e.iceGatherer.state&&(a+="a=end-of-candidates\r\n"))}));var s=new e.RTCSessionDescription({type:"offer",sdp:a});return Promise.resolve(s)},i.prototype.createAnswer=function(){var r=this;if(r._isClosed)return Promise.reject(X("InvalidStateError","Can not call createAnswer after close"));if("have-remote-offer"!==r.signalingState&&"have-local-pranswer"!==r.signalingState)return Promise.reject(X("InvalidStateError","Can not call createAnswer in signalingState "+r.signalingState));var n=W.writeSessionBoilerplate(r._sdpSessionId,r._sdpSessionVersion++);r.usingBundle&&(n+="a=group:BUNDLE "+r.transceivers.map((function(e){return e.mid})).join(" ")+"\r\n"),n+="a=ice-options:trickle\r\n";var i=W.getMediaSections(r._remoteDescription.sdp).length;r.transceivers.forEach((function(e,o){if(!(o+1>i)){if(e.rejected)return"application"===e.kind?"DTLS/SCTP"===e.protocol?n+="m=application 0 DTLS/SCTP 5000\r\n":n+="m=application 0 "+e.protocol+" webrtc-datachannel\r\n":"audio"===e.kind?n+="m=audio 0 UDP/TLS/RTP/SAVPF 0\r\na=rtpmap:0 PCMU/8000\r\n":"video"===e.kind&&(n+="m=video 0 UDP/TLS/RTP/SAVPF 120\r\na=rtpmap:120 VP8/90000\r\n"),void(n+="c=IN IP4 0.0.0.0\r\na=inactive\r\na=mid:"+e.mid+"\r\n");var a;if(e.stream)"audio"===e.kind?a=e.stream.getAudioTracks()[0]:"video"===e.kind&&(a=e.stream.getVideoTracks()[0]),a&&t>=15019&&"video"===e.kind&&!e.sendEncodingParameters[0].rtx&&(e.sendEncodingParameters[0].rtx={ssrc:e.sendEncodingParameters[0].ssrc+1});var s=Y(e.localCapabilities,e.remoteCapabilities);!s.codecs.filter((function(e){return"rtx"===e.name.toLowerCase()})).length&&e.sendEncodingParameters[0].rtx&&delete e.sendEncodingParameters[0].rtx,n+=K(e,s,"answer",e.stream,r._dtlsRole),e.rtcpParameters&&e.rtcpParameters.reducedSize&&(n+="a=rtcp-rsize\r\n")}}));var o=new e.RTCSessionDescription({type:"answer",sdp:n});return Promise.resolve(o)},i.prototype.addIceCandidate=function(e){var t,r=this;return e&&void 0===e.sdpMLineIndex&&!e.sdpMid?Promise.reject(new TypeError("sdpMLineIndex or sdpMid required")):new Promise((function(n,i){if(!r._remoteDescription)return i(X("InvalidStateError","Can not add ICE candidate without a remote description"));if(e&&""!==e.candidate){var o=e.sdpMLineIndex;if(e.sdpMid)for(var a=0;a<r.transceivers.length;a++)if(r.transceivers[a].mid===e.sdpMid){o=a;break}var s=r.transceivers[o];if(!s)return i(X("OperationError","Can not add ICE candidate"));if(s.rejected)return n();var c=Object.keys(e.candidate).length>0?W.parseCandidate(e.candidate):{};if("tcp"===c.protocol&&(0===c.port||9===c.port))return n();if(c.component&&1!==c.component)return n();if((0===o||o>0&&s.iceTransport!==r.transceivers[0].iceTransport)&&!Q(s.iceTransport,c))return i(X("OperationError","Can not add ICE candidate"));var p=e.candidate.trim();0===p.indexOf("a=")&&(p=p.substr(2)),(t=W.getMediaSections(r._remoteDescription.sdp))[o]+="a="+(c.type?p:"end-of-candidates")+"\r\n",r._remoteDescription.sdp=W.getDescription(r._remoteDescription.sdp)+t.join("")}else for(var d=0;d<r.transceivers.length&&(r.transceivers[d].rejected||(r.transceivers[d].iceTransport.addRemoteCandidate({}),(t=W.getMediaSections(r._remoteDescription.sdp))[d]+="a=end-of-candidates\r\n",r._remoteDescription.sdp=W.getDescription(r._remoteDescription.sdp)+t.join(""),!r.usingBundle));d++);n()}))},i.prototype.getStats=function(t){if(t&&t instanceof e.MediaStreamTrack){var r=null;if(this.transceivers.forEach((function(e){e.rtpSender&&e.rtpSender.track===t?r=e.rtpSender:e.rtpReceiver&&e.rtpReceiver.track===t&&(r=e.rtpReceiver)})),!r)throw X("InvalidAccessError","Invalid selector.");return r.getStats()}var n=[];return this.transceivers.forEach((function(e){["rtpSender","rtpReceiver","iceGatherer","iceTransport","dtlsTransport"].forEach((function(t){e[t]&&n.push(e[t].getStats())}))})),Promise.all(n).then((function(e){var t=new Map;return e.forEach((function(e){e.forEach((function(e){t.set(e.id,e)}))})),t}))};["RTCRtpSender","RTCRtpReceiver","RTCIceGatherer","RTCIceTransport","RTCDtlsTransport"].forEach((function(t){var r=e[t];if(r&&r.prototype&&r.prototype.getStats){var n=r.prototype.getStats;r.prototype.getStats=function(){return n.apply(this).then((function(e){var t=new Map;return Object.keys(e).forEach((function(r){var n;e[r].type={inboundrtp:"inbound-rtp",outboundrtp:"outbound-rtp",candidatepair:"candidate-pair",localcandidate:"local-candidate",remotecandidate:"remote-candidate"}[(n=e[r]).type]||n.type,t.set(r,e[r])})),t}))}}}));var o=["createOffer","createAnswer"];return o.forEach((function(e){var t=i.prototype[e];i.prototype[e]=function(){var e=arguments;return"function"==typeof e[0]||"function"==typeof e[1]?t.apply(this,[arguments[2]]).then((function(t){"function"==typeof e[0]&&e[0].apply(null,[t])}),(function(t){"function"==typeof e[1]&&e[1].apply(null,[t])})):t.apply(this,arguments)}})),(o=["setLocalDescription","setRemoteDescription","addIceCandidate"]).forEach((function(e){var t=i.prototype[e];i.prototype[e]=function(){var e=arguments;return"function"==typeof e[1]||"function"==typeof e[2]?t.apply(this,arguments).then((function(){"function"==typeof e[1]&&e[1].apply(null)}),(function(t){"function"==typeof e[2]&&e[2].apply(null,[t])})):t.apply(this,arguments)}})),["getStats"].forEach((function(e){var t=i.prototype[e];i.prototype[e]=function(){var e=arguments;return"function"==typeof e[1]?t.apply(this,arguments).then((function(){"function"==typeof e[1]&&e[1].apply(null)})):t.apply(this,arguments)}})),i};var re={};function ne(e,t){var r=e&&e.navigator,n=e&&e.MediaStreamTrack;if(r.getUserMedia=function(e,t,n){k("navigator.getUserMedia","navigator.mediaDevices.getUserMedia"),r.mediaDevices.getUserMedia(e).then(t,n)},!(t.version>55&&"autoGainControl"in r.mediaDevices.getSupportedConstraints())){var i=function(e,t,r){t in e&&!(r in e)&&(e[r]=e[t],delete e[t])},o=r.mediaDevices.getUserMedia.bind(r.mediaDevices);if(r.mediaDevices.getUserMedia=function(e){return"object"==typeof e&&"object"==typeof e.audio&&(e=JSON.parse(JSON.stringify(e)),i(e.audio,"autoGainControl","mozAutoGainControl"),i(e.audio,"noiseSuppression","mozNoiseSuppression")),o(e)},n&&n.prototype.getSettings){var a=n.prototype.getSettings;n.prototype.getSettings=function(){var e=a.apply(this,arguments);return i(e,"mozAutoGainControl","autoGainControl"),i(e,"mozNoiseSuppression","noiseSuppression"),e}}if(n&&n.prototype.applyConstraints){var s=n.prototype.applyConstraints;n.prototype.applyConstraints=function(e){return"audio"===this.kind&&"object"==typeof e&&(e=JSON.parse(JSON.stringify(e)),i(e,"autoGainControl","mozAutoGainControl"),i(e,"noiseSuppression","mozNoiseSuppression")),s.apply(this,[e])}}}}function ie(e,t){e.navigator.mediaDevices&&"getDisplayMedia"in e.navigator.mediaDevices||e.navigator.mediaDevices&&(e.navigator.mediaDevices.getDisplayMedia=function(r){if(!r||!r.video){var n=new DOMException("getDisplayMedia without video constraints is undefined");return n.name="NotFoundError",n.code=8,Promise.reject(n)}return!0===r.video?r.video={mediaSource:t}:r.video.mediaSource=t,e.navigator.mediaDevices.getUserMedia(r)})}function oe(e){"object"==typeof e&&e.RTCTrackEvent&&"receiver"in e.RTCTrackEvent.prototype&&!("transceiver"in e.RTCTrackEvent.prototype)&&Object.defineProperty(e.RTCTrackEvent.prototype,"transceiver",{get:function(){return{receiver:this.receiver}}})}function ae(e,t){if("object"==typeof e&&(e.RTCPeerConnection||e.mozRTCPeerConnection)){!e.RTCPeerConnection&&e.mozRTCPeerConnection&&(e.RTCPeerConnection=e.mozRTCPeerConnection),t.version<53&&["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach((function(t){var r=e.RTCPeerConnection.prototype[t],n=o({},t,(function(){return arguments[0]=new("addIceCandidate"===t?e.RTCIceCandidate:e.RTCSessionDescription)(arguments[0]),r.apply(this,arguments)}));e.RTCPeerConnection.prototype[t]=n[t]}));var r={inboundrtp:"inbound-rtp",outboundrtp:"outbound-rtp",candidatepair:"candidate-pair",localcandidate:"local-candidate",remotecandidate:"remote-candidate"},n=e.RTCPeerConnection.prototype.getStats;e.RTCPeerConnection.prototype.getStats=function(){var e=s(arguments,3),i=e[0],o=e[1],a=e[2];return n.apply(this,[i||null]).then((function(e){if(t.version<53&&!o)try{e.forEach((function(e){e.type=r[e.type]||e.type}))}catch(t){if("TypeError"!==t.name)throw t;e.forEach((function(t,n){e.set(n,Object.assign({},t,{type:r[t.type]||t.type}))}))}return e})).then(o,a)}}}function se(e){if("object"==typeof e&&e.RTCPeerConnection&&e.RTCRtpSender&&(!e.RTCRtpSender||!("getStats"in e.RTCRtpSender.prototype))){var t=e.RTCPeerConnection.prototype.getSenders;t&&(e.RTCPeerConnection.prototype.getSenders=function(){var e=this,r=t.apply(this,[]);return r.forEach((function(t){return t._pc=e})),r});var r=e.RTCPeerConnection.prototype.addTrack;r&&(e.RTCPeerConnection.prototype.addTrack=function(){var e=r.apply(this,arguments);return e._pc=this,e}),e.RTCRtpSender.prototype.getStats=function(){return this.track?this._pc.getStats(this.track):Promise.resolve(new Map)}}}function ce(e){if("object"==typeof e&&e.RTCPeerConnection&&e.RTCRtpSender&&(!e.RTCRtpSender||!("getStats"in e.RTCRtpReceiver.prototype))){var t=e.RTCPeerConnection.prototype.getReceivers;t&&(e.RTCPeerConnection.prototype.getReceivers=function(){var e=this,r=t.apply(this,[]);return r.forEach((function(t){return t._pc=e})),r}),C(e,"track",(function(e){return e.receiver._pc=e.srcElement,e})),e.RTCRtpReceiver.prototype.getStats=function(){return this._pc.getStats(this.track)}}}function pe(e){e.RTCPeerConnection&&!("removeStream"in e.RTCPeerConnection.prototype)&&(e.RTCPeerConnection.prototype.removeStream=function(e){var t=this;k("removeStream","removeTrack"),this.getSenders().forEach((function(r){r.track&&e.getTracks().includes(r.track)&&t.removeTrack(r)}))})}function de(e){e.DataChannel&&!e.RTCDataChannel&&(e.RTCDataChannel=e.DataChannel)}function ue(e){if("object"==typeof e&&e.RTCPeerConnection){var t=e.RTCPeerConnection.prototype.addTransceiver;t&&(e.RTCPeerConnection.prototype.addTransceiver=function(){this.setParametersPromises=[];var e=arguments[1],r=e&&"sendEncodings"in e;r&&e.sendEncodings.forEach((function(e){if("rid"in e){if(!/^[a-z0-9]{0,16}$/i.test(e.rid))throw new TypeError("Invalid RID value provided.")}if("scaleResolutionDownBy"in e&&!(parseFloat(e.scaleResolutionDownBy)>=1))throw new RangeError("scale_resolution_down_by must be >= 1.0");if("maxFramerate"in e&&!(parseFloat(e.maxFramerate)>=0))throw new RangeError("max_framerate must be >= 0.0")}));var n=t.apply(this,arguments);if(r){var i=n.sender,o=i.getParameters();(!("encodings"in o)||1===o.encodings.length&&0===Object.keys(o.encodings[0]).length)&&(o.encodings=e.sendEncodings,i.sendEncodings=e.sendEncodings,this.setParametersPromises.push(i.setParameters(o).then((function(){delete i.sendEncodings})).catch((function(){delete i.sendEncodings}))))}return n})}}function le(e){if("object"==typeof e&&e.RTCRtpSender){var t=e.RTCRtpSender.prototype.getParameters;t&&(e.RTCRtpSender.prototype.getParameters=function(){var e=t.apply(this,arguments);return"encodings"in e||(e.encodings=[].concat(this.sendEncodings||[{}])),e})}}function fe(e){if("object"==typeof e&&e.RTCPeerConnection){var t=e.RTCPeerConnection.prototype.createOffer;e.RTCPeerConnection.prototype.createOffer=function(){var e=this,r=arguments;return this.setParametersPromises&&this.setParametersPromises.length?Promise.all(this.setParametersPromises).then((function(){return t.apply(e,r)})).finally((function(){e.setParametersPromises=[]})):t.apply(this,arguments)}}}function he(e){if("object"==typeof e&&e.RTCPeerConnection){var t=e.RTCPeerConnection.prototype.createAnswer;e.RTCPeerConnection.prototype.createAnswer=function(){var e=this,r=arguments;return this.setParametersPromises&&this.setParametersPromises.length?Promise.all(this.setParametersPromises).then((function(){return t.apply(e,r)})).finally((function(){e.setParametersPromises=[]})):t.apply(this,arguments)}}}t(re,"shimOnTrack",(function(){return oe})),t(re,"shimPeerConnection",(function(){return ae})),t(re,"shimSenderGetStats",(function(){return se})),t(re,"shimReceiverGetStats",(function(){return ce})),t(re,"shimRemoveStream",(function(){return pe})),t(re,"shimRTCDataChannel",(function(){return de})),t(re,"shimAddTransceiver",(function(){return ue})),t(re,"shimGetParameters",(function(){return le})),t(re,"shimCreateOffer",(function(){return fe})),t(re,"shimCreateAnswer",(function(){return he})),t(re,"shimGetUserMedia",(function(){return ne})),t(re,"shimGetDisplayMedia",(function(){return ie}));var me={};function ve(e){if("object"==typeof e&&e.RTCPeerConnection){if("getLocalStreams"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.getLocalStreams=function(){return this._localStreams||(this._localStreams=[]),this._localStreams}),!("addStream"in e.RTCPeerConnection.prototype)){var t=e.RTCPeerConnection.prototype.addTrack;e.RTCPeerConnection.prototype.addStream=function(e){var r=this;this._localStreams||(this._localStreams=[]),this._localStreams.includes(e)||this._localStreams.push(e),e.getAudioTracks().forEach((function(n){return t.call(r,n,e)})),e.getVideoTracks().forEach((function(n){return t.call(r,n,e)}))},e.RTCPeerConnection.prototype.addTrack=function(e){for(var r=arguments.length,n=new Array(r>1?r-1:0),i=1;i<r;i++)n[i-1]=arguments[i];var o=this;return n&&n.forEach((function(e){o._localStreams?o._localStreams.includes(e)||o._localStreams.push(e):o._localStreams=[e]})),t.apply(this,arguments)}}"removeStream"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.removeStream=function(e){var t=this;this._localStreams||(this._localStreams=[]);var r=this._localStreams.indexOf(e);if(-1!==r){this._localStreams.splice(r,1);var n=e.getTracks();this.getSenders().forEach((function(e){n.includes(e.track)&&t.removeTrack(e)}))}})}}function ye(e){if("object"==typeof e&&e.RTCPeerConnection&&("getRemoteStreams"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.getRemoteStreams=function(){return this._remoteStreams?this._remoteStreams:[]}),!("onaddstream"in e.RTCPeerConnection.prototype))){Object.defineProperty(e.RTCPeerConnection.prototype,"onaddstream",{get:function(){return this._onaddstream},set:function(e){var t=this;this._onaddstream&&(this.removeEventListener("addstream",this._onaddstream),this.removeEventListener("track",this._onaddstreampoly)),this.addEventListener("addstream",this._onaddstream=e),this.addEventListener("track",this._onaddstreampoly=function(e){var r=t;e.streams.forEach((function(e){if(r._remoteStreams||(r._remoteStreams=[]),!r._remoteStreams.includes(e)){r._remoteStreams.push(e);var t=new Event("addstream");t.stream=e,r.dispatchEvent(t)}}))})}});var t=e.RTCPeerConnection.prototype.setRemoteDescription;e.RTCPeerConnection.prototype.setRemoteDescription=function(){var e=this;return this._onaddstreampoly||this.addEventListener("track",this._onaddstreampoly=function(t){t.streams.forEach((function(t){if(e._remoteStreams||(e._remoteStreams=[]),!(e._remoteStreams.indexOf(t)>=0)){e._remoteStreams.push(t);var r=new Event("addstream");r.stream=t,e.dispatchEvent(r)}}))}),t.apply(e,arguments)}}}function ge(e){if("object"==typeof e&&e.RTCPeerConnection){var t=e.RTCPeerConnection.prototype,r=t.createOffer,n=t.createAnswer,i=t.setLocalDescription,o=t.setRemoteDescription,a=t.addIceCandidate;t.createOffer=function(e,t){var n=arguments.length>=2?arguments[2]:arguments[0],i=r.apply(this,[n]);return t?(i.then(e,t),Promise.resolve()):i},t.createAnswer=function(e,t){var r=arguments.length>=2?arguments[2]:arguments[0],i=n.apply(this,[r]);return t?(i.then(e,t),Promise.resolve()):i};var s=function(e,t,r){var n=i.apply(this,[e]);return r?(n.then(t,r),Promise.resolve()):n};t.setLocalDescription=s,s=function(e,t,r){var n=o.apply(this,[e]);return r?(n.then(t,r),Promise.resolve()):n},t.setRemoteDescription=s,s=function(e,t,r){var n=a.apply(this,[e]);return r?(n.then(t,r),Promise.resolve()):n},t.addIceCandidate=s}}function be(e){var t=e&&e.navigator;if(t.mediaDevices&&t.mediaDevices.getUserMedia){var r=t.mediaDevices,n=r.getUserMedia.bind(r);t.mediaDevices.getUserMedia=function(e){return n(Ce(e))}}!t.getUserMedia&&t.mediaDevices&&t.mediaDevices.getUserMedia&&(t.getUserMedia=function(e,r,n){t.mediaDevices.getUserMedia(e).then(r,n)}.bind(t))}function Ce(e){return e&&void 0!==e.video?Object.assign({},e,{video:R(e.video)}):e}function _e(e){if(e.RTCPeerConnection){var t=e.RTCPeerConnection;e.RTCPeerConnection=function(e,r){if(e&&e.iceServers){for(var n=[],i=0;i<e.iceServers.length;i++){var o=e.iceServers[i];!o.hasOwnProperty("urls")&&o.hasOwnProperty("url")?(k("RTCIceServer.url","RTCIceServer.urls"),(o=JSON.parse(JSON.stringify(o))).urls=o.url,delete o.url,n.push(o)):n.push(e.iceServers[i])}e.iceServers=n}return new t(e,r)},e.RTCPeerConnection.prototype=t.prototype,"generateCertificate"in t&&Object.defineProperty(e.RTCPeerConnection,"generateCertificate",{get:function(){return t.generateCertificate}})}}function Se(e){"object"==typeof e&&e.RTCTrackEvent&&"receiver"in e.RTCTrackEvent.prototype&&!("transceiver"in e.RTCTrackEvent.prototype)&&Object.defineProperty(e.RTCTrackEvent.prototype,"transceiver",{get:function(){return{receiver:this.receiver}}})}function Te(e){var t=e.RTCPeerConnection.prototype.createOffer;e.RTCPeerConnection.prototype.createOffer=function(e){if(e){void 0!==e.offerToReceiveAudio&&(e.offerToReceiveAudio=!!e.offerToReceiveAudio);var r=this.getTransceivers().find((function(e){return"audio"===e.receiver.track.kind}));!1===e.offerToReceiveAudio&&r?"sendrecv"===r.direction?r.setDirection?r.setDirection("sendonly"):r.direction="sendonly":"recvonly"===r.direction&&(r.setDirection?r.setDirection("inactive"):r.direction="inactive"):!0!==e.offerToReceiveAudio||r||this.addTransceiver("audio"),void 0!==e.offerToReceiveVideo&&(e.offerToReceiveVideo=!!e.offerToReceiveVideo);var n=this.getTransceivers().find((function(e){return"video"===e.receiver.track.kind}));!1===e.offerToReceiveVideo&&n?"sendrecv"===n.direction?n.setDirection?n.setDirection("sendonly"):n.direction="sendonly":"recvonly"===n.direction&&(n.setDirection?n.setDirection("inactive"):n.direction="inactive"):!0!==e.offerToReceiveVideo||n||this.addTransceiver("video")}return t.apply(this,arguments)}}function ke(e){"object"!=typeof e||e.AudioContext||(e.AudioContext=e.webkitAudioContext)}t(me,"shimLocalStreamsAPI",(function(){return ve})),t(me,"shimRemoteStreamsAPI",(function(){return ye})),t(me,"shimCallbacksAPI",(function(){return ge})),t(me,"shimGetUserMedia",(function(){return be})),t(me,"shimConstraints",(function(){return Ce})),t(me,"shimRTCIceServerUrls",(function(){return _e})),t(me,"shimTrackEventTransceiver",(function(){return Se})),t(me,"shimCreateOfferLegacy",(function(){return Te})),t(me,"shimAudioContext",(function(){return ke}));var we={};function Pe(t){if(!(!t.RTCIceCandidate||t.RTCIceCandidate&&"foundation"in t.RTCIceCandidate.prototype)){var r=t.RTCIceCandidate;t.RTCIceCandidate=function(t){if("object"==typeof t&&t.candidate&&0===t.candidate.indexOf("a=")&&((t=JSON.parse(JSON.stringify(t))).candidate=t.candidate.substr(2)),t.candidate&&t.candidate.length){var n=new r(t),i=e(W).parseCandidate(t.candidate),o=Object.assign(n,i);return o.toJSON=function(){return{candidate:o.candidate,sdpMid:o.sdpMid,sdpMLineIndex:o.sdpMLineIndex,usernameFragment:o.usernameFragment}},o}return new r(t)},t.RTCIceCandidate.prototype=r.prototype,C(t,"icecandidate",(function(e){return e.candidate&&Object.defineProperty(e,"candidate",{value:new t.RTCIceCandidate(e.candidate),writable:"false"}),e}))}}function Re(t,r){if(t.RTCPeerConnection){"sctp"in t.RTCPeerConnection.prototype||Object.defineProperty(t.RTCPeerConnection.prototype,"sctp",{get:function(){return void 0===this._sctp?null:this._sctp}});var n=function(t){if(!t||!t.sdp)return!1;var r=e(W).splitSections(t.sdp);return r.shift(),r.some((function(t){var r=e(W).parseMLine(t);return r&&"application"===r.kind&&-1!==r.protocol.indexOf("SCTP")}))},i=function(e){var t=e.sdp.match(/mozilla...THIS_IS_SDPARTA-(\d+)/);if(null===t||t.length<2)return-1;var r=parseInt(t[1],10);return r!=r?-1:r},o=function(e){var t=65536;return"firefox"===r.browser&&(t=r.version<57?-1===e?16384:2147483637:r.version<60?57===r.version?65535:65536:2147483637),t},a=function(t,n){var i=65536;"firefox"===r.browser&&57===r.version&&(i=65535);var o=e(W).matchPrefix(t.sdp,"a=max-message-size:");return o.length>0?i=parseInt(o[0].substr(19),10):"firefox"===r.browser&&-1!==n&&(i=2147483637),i},s=t.RTCPeerConnection.prototype.setRemoteDescription;t.RTCPeerConnection.prototype.setRemoteDescription=function(){if(this._sctp=null,"chrome"===r.browser&&r.version>=76){var e=this.getConfiguration().sdpSemantics;"plan-b"===e&&Object.defineProperty(this,"sctp",{get:function(){return void 0===this._sctp?null:this._sctp},enumerable:!0,configurable:!0})}if(n(arguments[0])){var t,c=i(arguments[0]),p=o(c),d=a(arguments[0],c);t=0===p&&0===d?Number.POSITIVE_INFINITY:0===p||0===d?Math.max(p,d):Math.min(p,d);var u={};Object.defineProperty(u,"maxMessageSize",{get:function(){return t}}),this._sctp=u}return s.apply(this,arguments)}}}function Ee(e){var t=function(e,t){var r=e.send;e.send=function(){var n=arguments[0],i=n.length||n.size||n.byteLength;if("open"===e.readyState&&t.sctp&&i>t.sctp.maxMessageSize)throw new TypeError("Message too large (can send a maximum of "+t.sctp.maxMessageSize+" bytes)");return r.apply(e,arguments)}};if(e.RTCPeerConnection&&"createDataChannel"in e.RTCPeerConnection.prototype){var r=e.RTCPeerConnection.prototype.createDataChannel;e.RTCPeerConnection.prototype.createDataChannel=function(){var e=r.apply(this,arguments);return t(e,this),e},C(e,"datachannel",(function(e){return t(e.channel,e.target),e}))}}function xe(e){if(e.RTCPeerConnection&&!("connectionState"in e.RTCPeerConnection.prototype)){var t=e.RTCPeerConnection.prototype;Object.defineProperty(t,"connectionState",{get:function(){return{completed:"connected",checking:"connecting"}[this.iceConnectionState]||this.iceConnectionState},enumerable:!0,configurable:!0}),Object.defineProperty(t,"onconnectionstatechange",{get:function(){return this._onconnectionstatechange||null},set:function(e){this._onconnectionstatechange&&(this.removeEventListener("connectionstatechange",this._onconnectionstatechange),delete this._onconnectionstatechange),e&&this.addEventListener("connectionstatechange",this._onconnectionstatechange=e)},enumerable:!0,configurable:!0}),["setLocalDescription","setRemoteDescription"].forEach((function(e){var r=t[e];t[e]=function(){return this._connectionstatechangepoly||(this._connectionstatechangepoly=function(e){var t=e.target;if(t._lastConnectionState!==t.connectionState){t._lastConnectionState=t.connectionState;var r=new Event("connectionstatechange",e);t.dispatchEvent(r)}return e},this.addEventListener("iceconnectionstatechange",this._connectionstatechangepoly)),r.apply(this,arguments)}}))}}function De(e,t){if(e.RTCPeerConnection&&!("chrome"===t.browser&&t.version>=71||"safari"===t.browser&&t.version>=605)){var r=e.RTCPeerConnection.prototype.setRemoteDescription;e.RTCPeerConnection.prototype.setRemoteDescription=function(t){if(t&&t.sdp&&-1!==t.sdp.indexOf("\na=extmap-allow-mixed")){var n=t.sdp.split("\n").filter((function(e){return"a=extmap-allow-mixed"!==e.trim()})).join("\n");e.RTCSessionDescription&&t instanceof e.RTCSessionDescription?arguments[0]=new e.RTCSessionDescription({type:t.type,sdp:n}):t.sdp=n}return r.apply(this,arguments)}}}function Oe(e,t){if(e.RTCPeerConnection&&e.RTCPeerConnection.prototype){var r=e.RTCPeerConnection.prototype.addIceCandidate;r&&0!==r.length&&(e.RTCPeerConnection.prototype.addIceCandidate=function(){return arguments[0]?("chrome"===t.browser&&t.version<78||"firefox"===t.browser&&t.version<68||"safari"===t.browser)&&arguments[0]&&""===arguments[0].candidate?Promise.resolve():r.apply(this,arguments):(arguments[1]&&arguments[1].apply(null),Promise.resolve())})}}t(we,"shimRTCIceCandidate",(function(){return Pe})),t(we,"shimMaxMessageSize",(function(){return Re})),t(we,"shimSendThrowTypeError",(function(){return Ee})),t(we,"shimConnectionState",(function(){return xe})),t(we,"removeExtmapAllowMixed",(function(){return De})),t(we,"shimAddIceCandidateNullOrEmpty",(function(){return Oe}));var Ie,Me,je=function(){var e=(arguments.length>0&&void 0!==arguments[0]?arguments[0]:{}).window,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{shimChrome:!0,shimFirefox:!0,shimEdge:!0,shimSafari:!0},r=T,n=w(e),i={browserDetails:n,commonShim:we,extractVersion:b,disableLog:_,disableWarnings:S};switch(n.browser){case"chrome":if(!D||!D.shimPeerConnection||!t.shimChrome)return r("Chrome shim is not included in this adapter release."),i;if(null===n.version)return r("Chrome shim can not determine version, not shimming."),i;r("adapter.js shimming chrome."),i.browserShim=D,we.shimAddIceCandidateNullOrEmpty(e,n),D.shimGetUserMedia(e,n),D.shimMediaStream(e,n),D.shimPeerConnection(e,n),D.shimOnTrack(e,n),D.shimAddTrackRemoveTrack(e,n),D.shimGetSendersWithDtmf(e,n),D.shimGetStats(e,n),D.shimSenderReceiverGetStats(e,n),D.fixNegotiationNeeded(e,n),we.shimRTCIceCandidate(e,n),we.shimConnectionState(e,n),we.shimMaxMessageSize(e,n),we.shimSendThrowTypeError(e,n),we.removeExtmapAllowMixed(e,n);break;case"firefox":if(!re||!re.shimPeerConnection||!t.shimFirefox)return r("Firefox shim is not included in this adapter release."),i;r("adapter.js shimming firefox."),i.browserShim=re,we.shimAddIceCandidateNullOrEmpty(e,n),re.shimGetUserMedia(e,n),re.shimPeerConnection(e,n),re.shimOnTrack(e,n),re.shimRemoveStream(e,n),re.shimSenderGetStats(e,n),re.shimReceiverGetStats(e,n),re.shimRTCDataChannel(e,n),re.shimAddTransceiver(e,n),re.shimGetParameters(e,n),re.shimCreateOffer(e,n),re.shimCreateAnswer(e,n),we.shimRTCIceCandidate(e,n),we.shimConnectionState(e,n),we.shimMaxMessageSize(e,n),we.shimSendThrowTypeError(e,n);break;case"edge":if(!V||!V.shimPeerConnection||!t.shimEdge)return r("MS edge shim is not included in this adapter release."),i;r("adapter.js shimming edge."),i.browserShim=V,V.shimGetUserMedia(e,n),V.shimGetDisplayMedia(e,n),V.shimPeerConnection(e,n),V.shimReplaceTrack(e,n),we.shimMaxMessageSize(e,n),we.shimSendThrowTypeError(e,n);break;case"safari":if(!me||!t.shimSafari)return r("Safari shim is not included in this adapter release."),i;r("adapter.js shimming safari."),i.browserShim=me,we.shimAddIceCandidateNullOrEmpty(e,n),me.shimRTCIceServerUrls(e,n),me.shimCreateOfferLegacy(e,n),me.shimCallbacksAPI(e,n),me.shimLocalStreamsAPI(e,n),me.shimRemoteStreamsAPI(e,n),me.shimTrackEventTransceiver(e,n),me.shimGetUserMedia(e,n),me.shimAudioContext(e,n),we.shimRTCIceCandidate(e,n),we.shimMaxMessageSize(e,n),we.shimSendThrowTypeError(e,n),we.removeExtmapAllowMixed(e,n);break;default:r("Unsupported browser!")}return i}({window:"undefined"==typeof window?void 0:window}),Ae=je,Le=Ae.default||Ae,Be=new((Ie=function(){this.isIOS=["iPad","iPhone","iPod"].includes(navigator.platform),this.supportedBrowsers=["firefox","chrome","safari"],this.minFirefoxVersion=59,this.minChromeVersion=72,this.minSafariVersion=605}).prototype.isWebRTCSupported=function(){return"undefined"!=typeof RTCPeerConnection},Ie.prototype.isBrowserSupported=function(){var 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"+r+" failed.")),t.connection.close();break;case"closed":qe.default.log("iceConnectionState is closed, closing connections to "+r),t.connection.emit("error",new Error("Connection to "+r+" closed.")),t.connection.close();break;case"disconnected":qe.default.log("iceConnectionState changed to disconnected on the connection with "+r);break;case"completed":e.onicecandidate=Fe.noop}t.connection.emit("iceStateChanged",e.iceConnectionState)},qe.default.log("Listening for data channel"),e.ondatachannel=function(e){qe.default.log("Received data channel");var t=e.channel;o.getConnection(r,n).initialize(t)},qe.default.log("Listening for remote stream"),e.ontrack=function(e){qe.default.log("Received remote stream");var i=e.streams[0],a=o.getConnection(r,n);if(a.type===tt.Media){var s=a;t._addStreamToMediaConnection(i,s)}}},e.prototype.cleanup=function(){qe.default.log("Cleaning up PeerConnection to "+this.connection.peer);var e=this.connection.peerConnection;if(e){this.connection.peerConnection=null,e.onicecandidate=e.oniceconnectionstatechange=e.ondatachannel=e.ontrack=function(){};var t="closed"!==e.signalingState,r=!1;if(this.connection.type===tt.Data){var n=this.connection.dataChannel;n&&(r=!!n.readyState&&"closed"!==n.readyState)}(t||r)&&e.close()}},e.prototype._makeOffer=function(){return bt(this,void 0,Promise,(function(){var e,t,r,n,i,o,a;return Ct(this,(function(s){switch(s.label){case 0:e=this.connection.peerConnection,t=this.connection.provider,s.label=1;case 1:return s.trys.push([1,7,,8]),[4,e.createOffer(this.connection.options.constraints)];case 2:r=s.sent(),qe.default.log("Created offer."),this.connection.options.sdpTransform&&"function"==typeof this.connection.options.sdpTransform&&(r.sdp=this.connection.options.sdpTransform(r.sdp)||r.sdp),s.label=3;case 3:return s.trys.push([3,5,,6]),[4,e.setLocalDescription(r)];case 4:return s.sent(),qe.default.log("Set localDescription:",r,"for:".concat(this.connection.peer)),n={sdp:r,type:this.connection.type,connectionId:this.connection.connectionId,metadata:this.connection.metadata,browser:Fe.browser},this.connection.type===tt.Data&&(i=this.connection,n=gt(gt({},n),{label:i.label,reliable:i.reliable,serialization:i.serialization})),t.socket.send({type:ot.Offer,payload:n,dst:this.connection.peer}),[3,6];case 5:return"OperationError: Failed to set local offer sdp: Called in wrong state: kHaveRemoteOffer"!=(o=s.sent())&&(t.emitError(rt.WebRTC,o),qe.default.log("Failed to setLocalDescription, ",o)),[3,6];case 6:return[3,8];case 7:return a=s.sent(),t.emitError(rt.WebRTC,a),qe.default.log("Failed to createOffer, ",a),[3,8];case 8:return[2]}}))}))},e.prototype._makeAnswer=function(){return bt(this,void 0,Promise,(function(){var e,t,r,n,i;return Ct(this,(function(o){switch(o.label){case 0:e=this.connection.peerConnection,t=this.connection.provider,o.label=1;case 1:return o.trys.push([1,7,,8]),[4,e.createAnswer()];case 2:r=o.sent(),qe.default.log("Created answer."),this.connection.options.sdpTransform&&"function"==typeof this.connection.options.sdpTransform&&(r.sdp=this.connection.options.sdpTransform(r.sdp)||r.sdp),o.label=3;case 3:return o.trys.push([3,5,,6]),[4,e.setLocalDescription(r)];case 4:return o.sent(),qe.default.log("Set localDescription:",r,"for:".concat(this.connection.peer)),t.socket.send({type:ot.Answer,payload:{sdp:r,type:this.connection.type,connectionId:this.connection.connectionId,browser:Fe.browser},dst:this.connection.peer}),[3,6];case 5:return n=o.sent(),t.emitError(rt.WebRTC,n),qe.default.log("Failed to setLocalDescription, ",n),[3,6];case 6:return[3,8];case 7:return i=o.sent(),t.emitError(rt.WebRTC,i),qe.default.log("Failed to create answer, ",i),[3,8];case 8:return[2]}}))}))},e.prototype.handleSDP=function(e,t){return bt(this,void 0,Promise,(function(){var r,n,i,o;return Ct(this,(function(a){switch(a.label){case 0:t=new RTCSessionDescription(t),r=this.connection.peerConnection,n=this.connection.provider,qe.default.log("Setting remote description",t),i=this,a.label=1;case 1:return a.trys.push([1,5,,6]),[4,r.setRemoteDescription(t)];case 2:return a.sent(),qe.default.log("Set remoteDescription:".concat(e," for:").concat(this.connection.peer)),"OFFER"!==e?[3,4]:[4,i._makeAnswer()];case 3:a.sent(),a.label=4;case 4:return[3,6];case 5:return o=a.sent(),n.emitError(rt.WebRTC,o),qe.default.log("Failed to setRemoteDescription, ",o),[3,6];case 6:return[2]}}))}))},e.prototype.handleCandidate=function(e){return bt(this,void 0,Promise,(function(){var t,r,n,i,o,a;return Ct(this,(function(s){switch(s.label){case 0:qe.default.log("handleCandidate:",e),t=e.candidate,r=e.sdpMLineIndex,n=e.sdpMid,i=this.connection.peerConnection,o=this.connection.provider,s.label=1;case 1:return s.trys.push([1,3,,4]),[4,i.addIceCandidate(new RTCIceCandidate({sdpMid:n,sdpMLineIndex:r,candidate:t}))];case 2:return s.sent(),qe.default.log("Added ICE candidate for:".concat(this.connection.peer)),[3,4];case 3:return a=s.sent(),o.emitError(rt.WebRTC,a),qe.default.log("Failed to handleCandidate, ",a),[3,4];case 4:return[2]}}))}))},e.prototype._addTracksToConnection=function(e,t){if(qe.default.log("add tracks from stream ".concat(e.id," to peer connection")),!t.addTrack)return qe.default.error("Your browser does't support RTCPeerConnection#addTrack. Ignored.");e.getTracks().forEach((function(r){t.addTrack(r,e)}))},e.prototype._addStreamToMediaConnection=function(e,t){qe.default.log("add stream ".concat(e.id," to media connection ").concat(t.connectionId)),t.addStream(e)},e}(),St={};t(St,"BaseConnection",(function(){return kt}),(function(e){return kt=e}));var Tt=function(){var e=function(t,r){return(e=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var r in t)Object.prototype.hasOwnProperty.call(t,r)&&(e[r]=t[r])})(t,r)};return function(t,r){var n=function(){this.constructor=t};if("function"!=typeof r&&null!==r)throw new TypeError("Class extends value "+String(r)+" is not a constructor or null");e(t,r),t.prototype=null===r?Object.create(r):(n.prototype=r.prototype,new n)}}(),kt=function(e){var t=function(t,r,n){var i=e.call(this)||this;return i.peer=t,i.provider=r,i.options=n,i._open=!1,i.metadata=n.metadata,i};return Tt(t,e),Object.defineProperty(t.prototype,"open",{get:function(){return this._open},enumerable:!1,configurable:!0}),t}(ze.EventEmitter),wt=function(){var e=function(t,r){return(e=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var r in t)Object.prototype.hasOwnProperty.call(t,r)&&(e[r]=t[r])})(t,r)};return function(t,r){var n=function(){this.constructor=t};if("function"!=typeof r&&null!==r)throw new TypeError("Class extends value "+String(r)+" is not a constructor or null");e(t,r),t.prototype=null===r?Object.create(r):(n.prototype=r.prototype,new n)}}(),Pt=function(){return Pt=Object.assign||function(e){for(var t,r=1,n=arguments.length;r<n;r++)for(var i in t=arguments[r])Object.prototype.hasOwnProperty.call(t,i)&&(e[i]=t[i]);return e},Pt.apply(this,arguments)},Rt=function(e){var t="function"==typeof Symbol&&Symbol.iterator,r=t&&e[t],n=0;if(r)return r.call(e);if(e&&"number"==typeof e.length)return{next:function(){return e&&n>=e.length&&(e=void 0),{value:e&&e[n++],done:!e}}};throw new TypeError(t?"Object is not iterable.":"Symbol.iterator is not defined.")},Et=function(e){function t(r,n,i){var o=e.call(this,r,n,i)||this;return o._localStream=o.options._stream,o.connectionId=o.options.connectionId||t.ID_PREFIX+Fe.randomToken(),o._negotiator=new yt.Negotiator(o),o._localStream&&o._negotiator.startConnection({_stream:o._localStream,originator:!0}),o}return wt(t,e),Object.defineProperty(t.prototype,"type",{get:function(){return tt.Media},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"localStream",{get:function(){return this._localStream},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"remoteStream",{get:function(){return this._remoteStream},enumerable:!1,configurable:!0}),t.prototype.addStream=function(t){qe.default.log("Receiving stream",t),this._remoteStream=t,e.prototype.emit.call(this,"stream",t)},t.prototype.handleMessage=function(e){var t=e.type,r=e.payload;switch(e.type){case ot.Answer:this._negotiator.handleSDP(t,r.sdp),this._open=!0;break;case ot.Candidate:this._negotiator.handleCandidate(r.candidate);break;default:qe.default.warn("Unrecognized message type:".concat(t," from peer:").concat(this.peer))}},t.prototype.answer=function(e,t){var r,n;if(void 0===t&&(t={}),this._localStream)qe.default.warn("Local stream already exists on this MediaConnection. Are you answering a call twice?");else{this._localStream=e,t&&t.sdpTransform&&(this.options.sdpTransform=t.sdpTransform),this._negotiator.startConnection(Pt(Pt({},this.options._payload),{_stream:e}));var i=this.provider._getMessages(this.connectionId);try{for(var o=Rt(i),a=o.next();!a.done;a=o.next()){var s=a.value;this.handleMessage(s)}}catch(e){r={error:e}}finally{try{a&&!a.done&&(n=o.return)&&n.call(o)}finally{if(r)throw r.error}}this._open=!0}},t.prototype.close=function(){this._negotiator&&(this._negotiator.cleanup(),this._negotiator=null),this._localStream=null,this._remoteStream=null,this.provider&&(this.provider._removeConnection(this),this.provider=null),this.options&&this.options._stream&&(this.options._stream=null),this.open&&(this._open=!1,e.prototype.emit.call(this,"close"))},t.ID_PREFIX="mc_",t}(St.BaseConnection),xt={};t(xt,"DataConnection",(function(){return At}),(function(e){return At=e}));var Dt={};t(Dt,"EncodingQueue",(function(){return It}),(function(e){return It=e}));var Ot=function(){var e=function(t,r){return(e=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var r in t)Object.prototype.hasOwnProperty.call(t,r)&&(e[r]=t[r])})(t,r)};return function(t,r){var n=function(){this.constructor=t};if("function"!=typeof r&&null!==r)throw new TypeError("Class extends value "+String(r)+" is not a constructor or null");e(t,r),t.prototype=null===r?Object.create(r):(n.prototype=r.prototype,new n)}}(),It=function(e){var t=function(){var t=e.call(this)||this;return t.fileReader=new FileReader,t._queue=[],t._processing=!1,t.fileReader.onload=function(e){t._processing=!1,e.target&&t.emit("done",e.target.result),t.doNextTask()},t.fileReader.onerror=function(e){qe.default.error("EncodingQueue error:",e),t._processing=!1,t.destroy(),t.emit("error",e)},t};return Ot(t,e),Object.defineProperty(t.prototype,"queue",{get:function(){return this._queue},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"size",{get:function(){return this.queue.length},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"processing",{get:function(){return this._processing},enumerable:!1,configurable:!0}),t.prototype.enque=function(e){this.queue.push(e),this.processing||this.doNextTask()},t.prototype.destroy=function(){this.fileReader.abort(),this._queue=[]},t.prototype.doNextTask=function(){0!==this.size&&(this.processing||(this._processing=!0,this.fileReader.readAsArrayBuffer(this.queue.shift())))},t}(ze.EventEmitter),Mt=function(){var e=function(t,r){return(e=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var r in t)Object.prototype.hasOwnProperty.call(t,r)&&(e[r]=t[r])})(t,r)};return function(t,r){var n=function(){this.constructor=t};if("function"!=typeof r&&null!==r)throw new TypeError("Class extends value "+String(r)+" is not a constructor or null");e(t,r),t.prototype=null===r?Object.create(r):(n.prototype=r.prototype,new n)}}(),jt=function(e){var t="function"==typeof Symbol&&Symbol.iterator,r=t&&e[t],n=0;if(r)return r.call(e);if(e&&"number"==typeof e.length)return{next:function(){return e&&n>=e.length&&(e=void 0),{value:e&&e[n++],done:!e}}};throw new TypeError(t?"Object is not iterable.":"Symbol.iterator is not defined.")},At=function(e){function t(r,n,i){var o=e.call(this,r,n,i)||this;return o.stringify=JSON.stringify,o.parse=JSON.parse,o._buffer=[],o._bufferSize=0,o._buffering=!1,o._chunkedData={},o._encodingQueue=new Dt.EncodingQueue,o.connectionId=o.options.connectionId||t.ID_PREFIX+Fe.randomToken(),o.label=o.options.label||o.connectionId,o.serialization=o.options.serialization||nt.Binary,o.reliable=!!o.options.reliable,o._encodingQueue.on("done",(function(e){o._bufferedSend(e)})),o._encodingQueue.on("error",(function(){qe.default.error("DC#".concat(o.connectionId,": Error occured in encoding from blob to arraybuffer, close DC")),o.close()})),o._negotiator=new yt.Negotiator(o),o._negotiator.startConnection(o.options._payload||{originator:!0}),o}return Mt(t,e),Object.defineProperty(t.prototype,"type",{get:function(){return tt.Data},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"dataChannel",{get:function(){return this._dc},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"bufferSize",{get:function(){return this._bufferSize},enumerable:!1,configurable:!0}),t.prototype.initialize=function(e){this._dc=e,this._configureDataChannel()},t.prototype._configureDataChannel=function(){var e=this;Fe.supports.binaryBlob&&!Fe.supports.reliable||(this.dataChannel.binaryType="arraybuffer"),this.dataChannel.onopen=function(){qe.default.log("DC#".concat(e.connectionId," dc connection success")),e._open=!0,e.emit("open")},this.dataChannel.onmessage=function(t){qe.default.log("DC#".concat(e.connectionId," dc onmessage:"),t.data),e._handleDataMessage(t)},this.dataChannel.onclose=function(){qe.default.log("DC#".concat(e.connectionId," dc closed for:"),e.peer),e.close()}},t.prototype._handleDataMessage=function(t){var r=this,n=t.data,i=n.constructor,o=n;if(this.serialization===nt.Binary||this.serialization===nt.BinaryUTF8){if(i===Blob)return void Fe.blobToArrayBuffer(n,(function(e){var t=Fe.unpack(e);r.emit("data",t)}));if(i===ArrayBuffer)o=Fe.unpack(n);else if(i===String){var a=Fe.binaryStringToArrayBuffer(n);o=Fe.unpack(a)}}else this.serialization===nt.JSON&&(o=this.parse(n));o.__peerData?this._handleChunk(o):e.prototype.emit.call(this,"data",o)},t.prototype._handleChunk=function(e){var t=e.__peerData,r=this._chunkedData[t]||{data:[],count:0,total:e.total};if(r.data[e.n]=e.data,r.count++,this._chunkedData[t]=r,r.total===r.count){delete this._chunkedData[t];var n=new Blob(r.data);this._handleDataMessage({data:n})}},t.prototype.close=function(){this._buffer=[],this._bufferSize=0,this._chunkedData={},this._negotiator&&(this._negotiator.cleanup(),this._negotiator=null),this.provider&&(this.provider._removeConnection(this),this.provider=null),this.dataChannel&&(this.dataChannel.onopen=null,this.dataChannel.onmessage=null,this.dataChannel.onclose=null,this._dc=null),this._encodingQueue&&(this._encodingQueue.destroy(),this._encodingQueue.removeAllListeners(),this._encodingQueue=null),this.open&&(this._open=!1,e.prototype.emit.call(this,"close"))},t.prototype.send=function(t,r){if(this.open)if(this.serialization===nt.JSON)this._bufferedSend(this.stringify(t));else if(this.serialization===nt.Binary||this.serialization===nt.BinaryUTF8){var n=Fe.pack(t);if(!r&&n.size>Fe.chunkedMTU)return void this._sendChunks(n);Fe.supports.binaryBlob?this._bufferedSend(n):this._encodingQueue.enque(n)}else this._bufferedSend(t);else e.prototype.emit.call(this,"error",new Error("Connection is not open. You should listen for the `open` event before sending messages."))},t.prototype._bufferedSend=function(e){!this._buffering&&this._trySend(e)||(this._buffer.push(e),this._bufferSize=this._buffer.length)},t.prototype._trySend=function(e){var r=this;if(!this.open)return!1;if(this.dataChannel.bufferedAmount>t.MAX_BUFFERED_AMOUNT)return this._buffering=!0,setTimeout((function(){r._buffering=!1,r._tryBuffer()}),50),!1;try{this.dataChannel.send(e)}catch(e){return qe.default.error("DC#:".concat(this.connectionId," Error when sending:"),e),this._buffering=!0,this.close(),!1}return!0},t.prototype._tryBuffer=function(){if(this.open&&0!==this._buffer.length){var e=this._buffer[0];this._trySend(e)&&(this._buffer.shift(),this._bufferSize=this._buffer.length,this._tryBuffer())}},t.prototype._sendChunks=function(e){var t,r,n=Fe.chunk(e);qe.default.log("DC#".concat(this.connectionId," Try to send ").concat(n.length," chunks..."));try{for(var i=jt(n),o=i.next();!o.done;o=i.next()){var a=o.value;this.send(a,!0)}}catch(e){t={error:e}}finally{try{o&&!o.done&&(r=i.return)&&r.call(i)}finally{if(t)throw t.error}}},t.prototype.handleMessage=function(e){var t=e.payload;switch(e.type){case ot.Answer:this._negotiator.handleSDP(e.type,t.sdp);break;case ot.Candidate:this._negotiator.handleCandidate(t.candidate);break;default:qe.default.warn("Unrecognized message type:",e.type,"from peer:",this.peer)}},t.ID_PREFIX="dc_",t.MAX_BUFFERED_AMOUNT=8388608,t}(St.BaseConnection),Lt={};t(Lt,"API",(function(){return Ft}),(function(e){return Ft=e}));var Bt=function(e,t,r,n){return new(r||(r=Promise))((function(i,o){var a=function(e){try{c(n.next(e))}catch(e){o(e)}},s=function(e){try{c(n.throw(e))}catch(e){o(e)}},c=function(e){var t;e.done?i(e.value):(t=e.value,t instanceof r?t:new r((function(e){e(t)}))).then(a,s)};c((n=n.apply(e,t||[])).next())}))},Nt=function(e,t){var r,n,i,o,a=function(e){return function(t){return s([e,t])}},s=function(o){if(r)throw new TypeError("Generator is already executing.");for(;c;)try{if(r=1,n&&(i=2&o[0]?n.return:o[0]?n.throw||((i=n.return)&&i.call(n),0):n.next)&&!(i=i.call(n,o[1])).done)return i;switch(n=0,i&&(o=[2&o[0],i.value]),o[0]){case 0:case 1:i=o;break;case 4:return c.label++,{value:o[1],done:!1};case 5:c.label++,n=o[1],o=[0];continue;case 7:o=c.ops.pop(),c.trys.pop();continue;default:if(!(i=c.trys,(i=i.length>0&&i[i.length-1])||6!==o[0]&&2!==o[0])){c=0;continue}if(3===o[0]&&(!i||o[1]>i[0]&&o[1]<i[3])){c.label=o[1];break}if(6===o[0]&&c.label<i[1]){c.label=i[1],i=o;break}if(i&&c.label<i[2]){c.label=i[2],c.ops.push(o);break}i[2]&&c.ops.pop(),c.trys.pop();continue}o=t.call(e,c)}catch(e){o=[6,e],n=0}finally{r=i=0}if(5&o[0])throw o[1];return{value:o[0]?o[1]:void 0,done:!0}},c={label:0,sent:function(){if(1&i[0])throw i[1];return i[1]},trys:[],ops:[]};return o={next:a(0),throw:a(1),return:a(2)},"function"==typeof Symbol&&(o[Symbol.iterator]=function(){return this}),o},Ft=function(){var e=function(e){this._options=e};return e.prototype._buildRequest=function(e){var t=this._options.secure?"https":"http",r=this._options,n=r.host,i=r.port,o=r.path,a=r.key,s=new URL("".concat(t,"://").concat(n,":").concat(i).concat(o).concat(a,"/").concat(e));return s.searchParams.set("ts","".concat(Date.now()).concat(Math.random())),s.searchParams.set("version",pt.version),fetch(s.href,{referrerPolicy:this._options.referrerPolicy})},e.prototype.retrieveId=function(){return Bt(this,void 0,Promise,(function(){var e,t,r;return Nt(this,(function(n){switch(n.label){case 0:return n.trys.push([0,2,,3]),[4,this._buildRequest("id")];case 1:if(200!==(e=n.sent()).status)throw new Error("Error. Status:".concat(e.status));return[2,e.text()];case 2:throw t=n.sent(),qe.default.error("Error retrieving ID",t),r="","/"===this._options.path&&this._options.host!==Fe.CLOUD_HOST&&(r=" If you passed in a `path` to your self-hosted PeerServer, you'll also need to pass in that same path when creating a new Peer."),new Error("Could not get an ID from the server."+r);case 3:return[2]}}))}))},e.prototype.listAllPeers=function(){return Bt(this,void 0,Promise,(function(){var e,t,r;return Nt(this,(function(n){switch(n.label){case 0:return n.trys.push([0,2,,3]),[4,this._buildRequest("peers")];case 1:if(200!==(e=n.sent()).status){if(401===e.status)throw t="",t=this._options.host===Fe.CLOUD_HOST?"It looks like you're using the cloud server. You can email team@peerjs.com to enable peer listing for your API key.":"You need to enable `allow_discovery` on your self-hosted PeerServer to use this feature.",new Error("It doesn't look like you have permission to list peers IDs. "+t);throw new Error("Error. Status:".concat(e.status))}return[2,e.json()];case 2:throw r=n.sent(),qe.default.error("Error retrieving list peers",r),new Error("Could not get list peers from the server."+r);case 3:return[2]}}))}))},e}(),Ut=function(){var e=function(t,r){return(e=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var r in t)Object.prototype.hasOwnProperty.call(t,r)&&(e[r]=t[r])})(t,r)};return function(t,r){var n=function(){this.constructor=t};if("function"!=typeof r&&null!==r)throw new TypeError("Class extends value "+String(r)+" is not a constructor or null");e(t,r),t.prototype=null===r?Object.create(r):(n.prototype=r.prototype,new n)}}(),zt=function(){return zt=Object.assign||function(e){for(var t,r=1,n=arguments.length;r<n;r++)for(var i in t=arguments[r])Object.prototype.hasOwnProperty.call(t,i)&&(e[i]=t[i]);return e},zt.apply(this,arguments)},Gt=function(e){var t="function"==typeof Symbol&&Symbol.iterator,r=t&&e[t],n=0;if(r)return r.call(e);if(e&&"number"==typeof e.length)return{next:function(){return e&&n>=e.length&&(e=void 0),{value:e&&e[n++],done:!e}}};throw new TypeError(t?"Object is not iterable.":"Symbol.iterator is not defined.")},Vt=function(e,t){var r="function"==typeof Symbol&&e[Symbol.iterator];if(!r)return e;var n,i,o=r.call(e),a=[];try{for(;(void 0===t||t-- >0)&&!(n=o.next()).done;)a.push(n.value)}catch(e){i={error:e}}finally{try{n&&!n.done&&(r=o.return)&&r.call(o)}finally{if(i)throw i.error}}return a},Jt=function(e){function t(r,n){var i,o=e.call(this)||this;return o._id=null,o._lastServerId=null,o._destroyed=!1,o._disconnected=!1,o._open=!1,o._connections=new Map,o._lostMessages=new Map,r&&r.constructor==Object?n=r:r&&(i=r.toString()),n=zt({debug:0,host:Fe.CLOUD_HOST,port:Fe.CLOUD_PORT,path:"/",key:t.DEFAULT_KEY,token:Fe.randomToken(),config:Fe.defaultConfig,referrerPolicy:"strict-origin-when-cross-origin"},n),o._options=n,"/"===o._options.host&&(o._options.host=window.location.hostname),o._options.path&&("/"!==o._options.path[0]&&(o._options.path="/"+o._options.path),"/"!==o._options.path[o._options.path.length-1]&&(o._options.path+="/")),void 0===o._options.secure&&o._options.host!==Fe.CLOUD_HOST?o._options.secure=Fe.isSecure():o._options.host==Fe.CLOUD_HOST&&(o._options.secure=!0),o._options.logFunction&&qe.default.setLogFunction(o._options.logFunction),qe.default.logLevel=o._options.debug||0,o._api=new Lt.API(n),o._socket=o._createServerConnection(),Fe.supports.audioVideo||Fe.supports.data?i&&!Fe.validateId(i)?(o._delayedAbort(rt.InvalidID,'ID "'.concat(i,'" is invalid')),o):(i?o._initialize(i):o._api.retrieveId().then((function(e){return o._initialize(e)})).catch((function(e){return o._abort(rt.ServerError,e)})),o):(o._delayedAbort(rt.BrowserIncompatible,"The current browser does not support WebRTC"),o)}return Ut(t,e),Object.defineProperty(t.prototype,"id",{get:function(){return this._id},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"options",{get:function(){return this._options},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"open",{get:function(){return this._open},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"socket",{get:function(){return this._socket},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"connections",{get:function(){var e,t,r=Object.create(null);try{for(var n=Gt(this._connections),i=n.next();!i.done;i=n.next()){var o=Vt(i.value,2),a=o[0],s=o[1];r[a]=s}}catch(t){e={error:t}}finally{try{i&&!i.done&&(t=n.return)&&t.call(n)}finally{if(e)throw e.error}}return r},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"destroyed",{get:function(){return this._destroyed},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"disconnected",{get:function(){return this._disconnected},enumerable:!1,configurable:!0}),t.prototype._createServerConnection=function(){var e=this,t=new ct.Socket(this._options.secure,this._options.host,this._options.port,this._options.path,this._options.key,this._options.pingInterval);return t.on(it.Message,(function(t){e._handleMessage(t)})),t.on(it.Error,(function(t){e._abort(rt.SocketError,t)})),t.on(it.Disconnected,(function(){e.disconnected||(e.emitError(rt.Network,"Lost connection to server."),e.disconnect())})),t.on(it.Close,(function(){e.disconnected||e._abort(rt.SocketClosed,"Underlying socket is already closed.")})),t},t.prototype._initialize=function(e){this._id=e,this.socket.start(e,this._options.token)},t.prototype._handleMessage=function(e){var t,r,n=e.type,i=e.payload,o=e.src;switch(n){case ot.Open:this._lastServerId=this.id,this._open=!0,this.emit("open",this.id);break;case ot.Error:this._abort(rt.ServerError,i.msg);break;case ot.IdTaken:this._abort(rt.UnavailableID,'ID "'.concat(this.id,'" is taken'));break;case ot.InvalidKey:this._abort(rt.InvalidKey,'API KEY "'.concat(this._options.key,'" is invalid'));break;case ot.Leave:qe.default.log("Received leave message from ".concat(o)),this._cleanupPeer(o),this._connections.delete(o);break;case ot.Expire:this.emitError(rt.PeerUnavailable,"Could not connect to peer ".concat(o));break;case ot.Offer:var a=i.connectionId;if((f=this.getConnection(o,a))&&(f.close(),qe.default.warn("Offer received for existing Connection ID:".concat(a))),i.type===tt.Media){var s=new vt.MediaConnection(o,this,{connectionId:a,_payload:i,metadata:i.metadata});f=s,this._addConnection(o,f),this.emit("call",s)}else{if(i.type!==tt.Data)return void qe.default.warn("Received malformed connection type:".concat(i.type));var c=new xt.DataConnection(o,this,{connectionId:a,_payload:i,metadata:i.metadata,label:i.label,serialization:i.serialization,reliable:i.reliable});f=c,this._addConnection(o,f),this.emit("connection",c)}var p=this._getMessages(a);try{for(var d=Gt(p),u=d.next();!u.done;u=d.next()){var l=u.value;f.handleMessage(l)}}catch(e){t={error:e}}finally{try{u&&!u.done&&(r=d.return)&&r.call(d)}finally{if(t)throw t.error}}break;default:if(!i)return void qe.default.warn("You received a malformed message from ".concat(o," of type ").concat(n));var f;a=i.connectionId;(f=this.getConnection(o,a))&&f.peerConnection?f.handleMessage(e):a?this._storeMessage(a,e):qe.default.warn("You received an unrecognized message:",e)}},t.prototype._storeMessage=function(e,t){this._lostMessages.has(e)||this._lostMessages.set(e,[]),this._lostMessages.get(e).push(t)},t.prototype._getMessages=function(e){var t=this._lostMessages.get(e);return t?(this._lostMessages.delete(e),t):[]},t.prototype.connect=function(e,t){if(void 0===t&&(t={}),this.disconnected)return qe.default.warn("You cannot connect to a new Peer because you called .disconnect() on this Peer and ended your connection with the server. You can create a new Peer to reconnect, or call reconnect on this peer if you believe its ID to still be available."),void this.emitError(rt.Disconnected,"Cannot connect to new Peer after disconnecting from server.");var r=new xt.DataConnection(e,this,t);return this._addConnection(e,r),r},t.prototype.call=function(e,t,r){if(void 0===r&&(r={}),this.disconnected)return qe.default.warn("You cannot connect to a new Peer because you called .disconnect() on this Peer and ended your connection with the server. You can create a new Peer to reconnect."),void this.emitError(rt.Disconnected,"Cannot connect to new Peer after disconnecting from server.");if(t){var n=new vt.MediaConnection(e,this,zt(zt({},r),{_stream:t}));return this._addConnection(e,n),n}qe.default.error("To call a peer, you must provide a stream from your browser's `getUserMedia`.")},t.prototype._addConnection=function(e,t){qe.default.log("add connection ".concat(t.type,":").concat(t.connectionId," to peerId:").concat(e)),this._connections.has(e)||this._connections.set(e,[]),this._connections.get(e).push(t)},t.prototype._removeConnection=function(e){var t=this._connections.get(e.peer);if(t){var r=t.indexOf(e);-1!==r&&t.splice(r,1)}this._lostMessages.delete(e.connectionId)},t.prototype.getConnection=function(e,t){var r,n,i=this._connections.get(e);if(!i)return null;try{for(var o=Gt(i),a=o.next();!a.done;a=o.next()){var s=a.value;if(s.connectionId===t)return s}}catch(e){r={error:e}}finally{try{a&&!a.done&&(n=o.return)&&n.call(o)}finally{if(r)throw r.error}}return null},t.prototype._delayedAbort=function(e,t){var r=this;setTimeout((function(){r._abort(e,t)}),0)},t.prototype._abort=function(e,t){qe.default.error("Aborting!"),this.emitError(e,t),this._lastServerId?this.disconnect():this.destroy()},t.prototype.emitError=function(e,t){var r;qe.default.error("Error:",t),(r="string"==typeof t?new Error(t):t).type=e,this.emit("error",r)},t.prototype.destroy=function(){this.destroyed||(qe.default.log("Destroy peer with ID:".concat(this.id)),this.disconnect(),this._cleanup(),this._destroyed=!0,this.emit("close"))},t.prototype._cleanup=function(){var e,t;try{for(var r=Gt(this._connections.keys()),n=r.next();!n.done;n=r.next()){var i=n.value;this._cleanupPeer(i),this._connections.delete(i)}}catch(t){e={error:t}}finally{try{n&&!n.done&&(t=r.return)&&t.call(r)}finally{if(e)throw e.error}}this.socket.removeAllListeners()},t.prototype._cleanupPeer=function(e){var t,r,n=this._connections.get(e);if(n)try{for(var i=Gt(n),o=i.next();!o.done;o=i.next()){o.value.close()}}catch(e){t={error:e}}finally{try{o&&!o.done&&(r=i.return)&&r.call(i)}finally{if(t)throw t.error}}},t.prototype.disconnect=function(){if(!this.disconnected){var e=this.id;qe.default.log("Disconnect peer with ID:".concat(e)),this._disconnected=!0,this._open=!1,this.socket.close(),this._lastServerId=e,this._id=null,this.emit("disconnected",e)}},t.prototype.reconnect=function(){if(this.disconnected&&!this.destroyed)qe.default.log("Attempting reconnection to server with ID ".concat(this._lastServerId)),this._disconnected=!1,this._initialize(this._lastServerId);else{if(this.destroyed)throw new Error("This peer cannot reconnect to the server. It has already been destroyed.");if(this.disconnected||this.open)throw new Error("Peer ".concat(this.id," cannot reconnect because it is not disconnected from the server!"));qe.default.error("In a hurry? We're still trying to make the initial connection!")}},t.prototype.listAllPeers=function(e){var t=this;void 0===e&&(e=function(e){}),this._api.listAllPeers().then((function(t){return e(t)})).catch((function(e){return t._abort(rt.ServerError,e)}))},t.DEFAULT_KEY="peerjs",t}(ze.EventEmitter);window.peerjs={Peer:Ue.Peer,util:Fe},window.Peer=Ue.Peer}();
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