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gh-camp-video-portal/public/lib/trtc/trtc.js

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n=e.RTCPeerConnection.prototype.addStream;e.RTCPeerConnection.prototype.addStream=function(e){this._shimmedLocalStreams=this._shimmedLocalStreams||{},e.getTracks().forEach(e=>{if(this.getSenders().find(t=>t.track===e))throw new DOMException("Track already exists.","InvalidAccessError")});const t=this.getSenders();n.apply(this,arguments);const r=this.getSenders().filter(e=>-1===t.indexOf(e));this._shimmedLocalStreams[e.id]=[e].concat(r)};const r=e.RTCPeerConnection.prototype.removeStream;e.RTCPeerConnection.prototype.removeStream=function(e){return this._shimmedLocalStreams=this._shimmedLocalStreams||{},delete this._shimmedLocalStreams[e.id],r.apply(this,arguments)};const i=e.RTCPeerConnection.prototype.removeTrack;e.RTCPeerConnection.prototype.removeTrack=function(e){return this._shimmedLocalStreams=this._shimmedLocalStreams||{},e&&Object.keys(this._shimmedLocalStreams).forEach(t=>{const 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DOMException("Sender was not created by this connection.","InvalidAccessError");let t;this._streams=this._streams||{},Object.keys(this._streams).forEach(n=>{this._streams[n].getTracks().find(t=>e.track===t)&&(t=this._streams[n])}),t&&(1===t.getTracks().length?this.removeStream(this._reverseStreams[t.id]):t.removeTrack(e.track),this.dispatchEvent(new Event("negotiationneeded")))}}function Kt(e){const t=Mt(e);if(!e.RTCPeerConnection&&e.webkitRTCPeerConnection&&(e.RTCPeerConnection=e.webkitRTCPeerConnection),!e.RTCPeerConnection)return;t.version<53&&["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach(function(t){const n=e.RTCPeerConnection.prototype[t],r={[t](){return arguments[0]=new("addIceCandidate"===t?e.RTCIceCandidate:e.RTCSessionDescription)(arguments[0]),n.apply(this,arguments)}};e.RTCPeerConnection.prototype[t]=r[t]});const n=e.RTCPeerConnection.prototype.addIceCandidate;e.RTCPeerConnection.prototype.addIceCandidate=function(){return arguments[0]?t.version<78&&arguments[0]&&""===arguments[0].candidate?Promise.resolve():n.apply(this,arguments):(arguments[1]&&arguments[1].apply(null),Promise.resolve())}}function $t(e){At(e,"negotiationneeded",e=>{if("stable"===e.target.signalingState)return e})}var Yt=Object.freeze({shimMediaStream:Bt,shimOnTrack:Gt,shimGetSendersWithDtmf:Ht,shimGetStats:zt,shimSenderReceiverGetStats:Jt,shimAddTrackRemoveTrackWithNative:qt,shimAddTrackRemoveTrack:Qt,shimPeerConnection:Kt,fixNegotiationNeeded:$t,shimGetUserMedia:Wt,shimGetDisplayMedia:function(e,t){e.navigator.mediaDevices&&"getDisplayMedia"in e.navigator.mediaDevices||e.navigator.mediaDevices&&("function"==typeof t?e.navigator.mediaDevices.getDisplayMedia=function(n){return t(n).then(t=>{const r=n.video&&n.video.width,i=n.video&&n.video.height,o=n.video&&n.video.frameRate;return n.video={mandatory:{chromeMediaSource:"desktop",chromeMediaSourceId:t,maxFrameRate:o||3}},r&&(n.video.mandatory.maxWidth=r),i&&(n.video.mandatory.maxHeight=i),e.navigator.mediaDevices.getUserMedia(n)})}:console.error("shimGetDisplayMedia: getSourceId argument is not a function"))}});var Xt=t(function(e){var t={generateIdentifier:function(){return Math.random().toString(36).substr(2,10)}};t.localCName=t.generateIdentifier(),t.splitLines=function(e){return e.trim().split("\n").map(function(e){return e.trim()})},t.splitSections=function(e){return e.split("\nm=").map(function(e,t){return(t>0?"m="+e:e).trim()+"\r\n"})},t.getDescription=function(e){var n=t.splitSections(e);return n&&n[0]},t.getMediaSections=function(e){var n=t.splitSections(e);return n.shift(),n},t.matchPrefix=function(e,n){return t.splitLines(e).filter(function(e){return 0===e.indexOf(n)})},t.parseCandidate=function(e){for(var t,n={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]},r=8;r<t.length;r+=2)switch(t[r]){case"raddr":n.relatedAddress=t[r+1];break;case"rport":n.relatedPort=parseInt(t[r+1],10);break;case"tcptype":n.tcpType=t[r+1];break;case"ufrag":n.ufrag=t[r+1],n.usernameFragment=t[r+1];break;default:n[t[r]]=t[r+1]}return n},t.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 n=e.type;return t.push("typ"),t.push(n),"host"!==n&&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(" ")},t.parseIceOptions=function(e){return e.substr(14).split(" ")},t.parseRtpMap=function(e){var t=e.substr(9).split(" "),n={payloadType:parseInt(t.shift(),10)};return t=t[0].split("/"),n.name=t[0],n.clockRate=parseInt(t[1],10),n.channels=3===t.length?parseInt(t[2],10):1,n.numChannels=n.channels,n},t.writeRtpMap=function(e){var t=e.payloadType;void 0!==e.preferredPayloadType&&(t=e.preferredPayloadType);var n=e.channels||e.numChannels||1;return"a=rtpmap:"+t+" "+e.name+"/"+e.clockRate+(1!==n?"/"+n:"")+"\r\n"},t.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]}},t.writeExtmap=function(e){return"a=extmap:"+(e.id||e.preferredId)+(e.direction&&"sendrecv"!==e.direction?"/"+e.direction:"")+" "+e.uri+"\r\n"},t.parseFmtp=function(e){for(var t,n={},r=e.substr(e.indexOf(" ")+1).split(";"),i=0;i<r.length;i++)n[(t=r[i].trim().split("="))[0].trim()]=t[1];return n},t.writeFmtp=function(e){var t="",n=e.payloadType;if(void 0!==e.preferredPayloadType&&(n=e.preferredPayloadType),e.parameters&&Object.keys(e.parameters).length){var r=[];Object.keys(e.parameters).forEach(function(t){e.parameters[t]?r.push(t+"="+e.parameters[t]):r.push(t)}),t+="a=fmtp:"+n+" "+r.join(";")+"\r\n"}return t},t.parseRtcpFb=function(e){var t=e.substr(e.indexOf(" ")+1).split(" ");return{type:t.shift(),parameter:t.join(" ")}},t.writeRtcpFb=function(e){var t="",n=e.payloadType;return void 0!==e.preferredPayloadType&&(n=e.preferredPayloadType),e.rtcpFeedback&&e.rtcpFeedback.length&&e.rtcpFeedback.forEach(function(e){t+="a=rtcp-fb:"+n+" "+e.type+(e.parameter&&e.parameter.length?" "+e.parameter:"")+"\r\n"}),t},t.parseSsrcMedia=function(e){var t=e.indexOf(" "),n={ssrc:parseInt(e.substr(7,t-7),10)},r=e.indexOf(":",t);return r>-1?(n.attribute=e.substr(t+1,r-t-1),n.value=e.substr(r+1)):n.attribute=e.substr(t+1),n},t.parseSsrcGroup=function(e){var t=e.substr(13).split(" ");return{semantics:t.shift(),ssrcs:t.map(function(e){return parseInt(e,10)})}},t.getMid=function(e){var n=t.matchPrefix(e,"a=mid:")[0];if(n)return n.substr(6)},t.parseFingerprint=function(e){var t=e.substr(14).split(" ");return{algorithm:t[0].toLowerCase(),value:t[1]}},t.getDtlsParameters=function(e,n){return{role:"auto",fingerprints:t.matchPrefix(e+n,"a=fingerprint:").map(t.parseFingerprint)}},t.writeDtlsParameters=function(e,t){var n="a=setup:"+t+"\r\n";return e.fingerprints.forEach(function(e){n+="a=fingerprint:"+e.algorithm+" "+e.value+"\r\n"}),n},t.getIceParameters=function(e,n){var r=t.splitLines(e);return{usernameFragment:(r=r.concat(t.splitLines(n))).filter(function(e){return 0===e.indexOf("a=ice-ufrag:")})[0].substr(12),password:r.filter(function(e){return 0===e.indexOf("a=ice-pwd:")})[0].substr(10)}},t.writeIceParameters=function(e){return"a=ice-ufrag:"+e.usernameFragment+"\r\na=ice-pwd:"+e.password+"\r\n"},t.parseRtpParameters=function(e){for(var n={codecs:[],headerExtensions:[],fecMechanisms:[],rtcp:[]},r=t.splitLines(e)[0].split(" "),i=3;i<r.length;i++){var o=r[i],a=t.matchPrefix(e,"a=rtpmap:"+o+" ")[0];if(a){var s=t.parseRtpMap(a),c=t.matchPrefix(e,"a=fmtp:"+o+" ");switch(s.parameters=c.length?t.parseFmtp(c[0]):{},s.rtcpFeedback=t.matchPrefix(e,"a=rtcp-fb:"+o+" ").map(t.parseRtcpFb),n.codecs.push(s),s.name.toUpperCase()){case"RED":case"ULPFEC":n.fecMechanisms.push(s.name.toUpperCase())}}}return t.matchPrefix(e,"a=extmap:").forEach(function(e){n.headerExtensions.push(t.parseExtmap(e))}),n},t.writeRtpDescription=function(e,n){var r="";r+="m="+e+" ",r+=n.codecs.length>0?"9":"0",r+=" UDP/TLS/RTP/SAVPF ",r+=n.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",n.codecs.forEach(function(e){r+=t.writeRtpMap(e),r+=t.writeFmtp(e),r+=t.writeRtcpFb(e)});var i=0;return n.codecs.forEach(function(e){e.maxptime>i&&(i=e.maxptime)}),i>0&&(r+="a=maxptime:"+i+"\r\n"),r+="a=rtcp-mux\r\n",n.headerExtensions&&n.headerExtensions.forEach(function(e){r+=t.writeExtmap(e)}),r},t.parseRtpEncodingParameters=function(e){var n,r=[],i=t.parseRtpParameters(e),o=-1!==i.fecMechanisms.indexOf("RED"),a=-1!==i.fecMechanisms.indexOf("ULPFEC"),s=t.matchPrefix(e,"a=ssrc:").map(function(e){return t.parseSsrcMedia(e)}).filter(function(e){return"cname"===e.attribute}),c=s.length>0&&s[0].ssrc,u=t.matchPrefix(e,"a=ssrc-group:FID").map(function(e){return e.substr(17).split(" ").map(function(e){return parseInt(e,10)})});u.length>0&&u[0].length>1&&u[0][0]===c&&(n=u[0][1]),i.codecs.forEach(function(e){if("RTX"===e.name.toUpperCase()&&e.parameters.apt){var t={ssrc:c,codecPayloadType:parseInt(e.parameters.apt,10)};c&&n&&(t.rtx={ssrc:n}),r.push(t),o&&((t=JSON.parse(JSON.stringify(t))).fec={ssrc:c,mechanism:a?"red+ulpfec":"red"},r.push(t))}}),0===r.length&&c&&r.push({ssrc:c});var d=t.matchPrefix(e,"b=");return d.length&&(d=0===d[0].indexOf("b=TIAS:")?parseInt(d[0].substr(7),10):0===d[0].indexOf("b=AS:")?1e3*parseInt(d[0].substr(5),10)*.95-16e3:void 0,r.forEach(function(e){e.maxBitrate=d})),r},t.parseRtcpParameters=function(e){var n={},r=t.matchPrefix(e,"a=ssrc:").map(function(e){return t.parseSsrcMedia(e)}).filter(function(e){return"cname"===e.attribute})[0];r&&(n.cname=r.value,n.ssrc=r.ssrc);var i=t.matchPrefix(e,"a=rtcp-rsize");n.reducedSize=i.length>0,n.compound=0===i.length;var o=t.matchPrefix(e,"a=rtcp-mux");return n.mux=o.length>0,n},t.parseMsid=function(e){var n,r=t.matchPrefix(e,"a=msid:");if(1===r.length)return{stream:(n=r[0].substr(7).split(" "))[0],track:n[1]};var i=t.matchPrefix(e,"a=ssrc:").map(function(e){return t.parseSsrcMedia(e)}).filter(function(e){return"msid"===e.attribute});return i.length>0?{stream:(n=i[0].value.split(" "))[0],track:n[1]}:void 0},t.generateSessionId=function(){return Math.random().toString().substr(2,21)},t.writeSessionBoilerplate=function(e,n,r){var i=void 0!==n?n:2;return"v=0\r\no="+(r||"thisisadapterortc")+" "+(e||t.generateSessionId())+" "+i+" IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\n"},t.writeMediaSection=function(e,n,r,i){var o=t.writeRtpDescription(e.kind,n);if(o+=t.writeIceParameters(e.iceGatherer.getLocalParameters()),o+=t.writeDtlsParameters(e.dtlsTransport.getLocalParameters(),"offer"===r?"actpass":"active"),o+="a=mid:"+e.mid+"\r\n",e.direction?o+="a="+e.direction+"\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="msid:"+i.id+" "+e.rtpSender.track.id+"\r\n";o+="a="+a,o+="a=ssrc:"+e.sendEncodingParameters[0].ssrc+" "+a,e.sendEncodingParameters[0].rtx&&(o+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" "+a,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:"+t.localCName+"\r\n",e.rtpSender&&e.sendEncodingParameters[0].rtx&&(o+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" cname:"+t.localCName+"\r\n"),o},t.getDirection=function(e,n){for(var r=t.splitLines(e),i=0;i<r.length;i++)switch(r[i]){case"a=sendrecv":case"a=sendonly":case"a=recvonly":case"a=inactive":return r[i].substr(2)}return n?t.getDirection(n):"sendrecv"},t.getKind=function(e){return t.splitLines(e)[0].split(" ")[0].substr(2)},t.isRejected=function(e){return"0"===e.split(" ",2)[1]},t.parseMLine=function(e){var n=t.splitLines(e)[0].substr(2).split(" ");return{kind:n[0],port:parseInt(n[1],10),protocol:n[2],fmt:n.slice(3).join(" ")}},t.parseOLine=function(e){var n=t.matchPrefix(e,"o=")[0].substr(2).split(" ");return{username:n[0],sessionId:n[1],sessionVersion:parseInt(n[2],10),netType:n[3],addressType:n[4],address:n[5]}},t.isValidSDP=function(e){if("string"!=typeof e||0===e.length)return!1;for(var n=t.splitLines(e),r=0;r<n.length;r++)if(n[r].length<2||"="!==n[r].charAt(1))return!1;return!0},e.exports=t});function Zt(e,t,n,r,i){var o=Xt.writeRtpDescription(e.kind,t);if(o+=Xt.writeIceParameters(e.iceGatherer.getLocalParameters()),o+=Xt.writeDtlsParameters(e.dtlsTransport.getLocalParameters(),"offer"===n?"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:"+(r?r.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:"+Xt.localCName+"\r\n",e.rtpSender&&e.sendEncodingParameters[0].rtx&&(o+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" cname:"+Xt.localCName+"\r\n"),o}function en(e,t){var n={codecs:[],headerExtensions:[],fecMechanisms:[]},r=function(e,t){e=parseInt(e,10);for(var n=0;n<t.length;n++)if(t[n].payloadType===e||t[n].preferredPayloadType===e)return t[n]},i=function(e,t,n,i){var o=r(e.parameters.apt,n),a=r(t.parameters.apt,i);return o&&a&&o.name.toLowerCase()===a.name.toLowerCase()};return e.codecs.forEach(function(r){for(var o=0;o<t.codecs.length;o++){var a=t.codecs[o];if(r.name.toLowerCase()===a.name.toLowerCase()&&r.clockRate===a.clockRate){if("rtx"===r.name.toLowerCase()&&r.parameters&&a.parameters.apt&&!i(r,a,e.codecs,t.codecs))continue;(a=JSON.parse(JSON.stringify(a))).numChannels=Math.min(r.numChannels,a.numChannels),n.codecs.push(a),a.rtcpFeedback=a.rtcpFeedback.filter(function(e){for(var t=0;t<r.rtcpFeedback.length;t++)if(r.rtcpFeedback[t].type===e.type&&r.rtcpFeedback[t].parameter===e.parameter)return!0;return!1});break}}}),e.headerExtensions.forEach(function(e){for(var r=0;r<t.headerExtensions.length;r++){var i=t.headerExtensions[r];if(e.uri===i.uri){n.headerExtensions.push(i);break}}}),n}function tn(e,t,n){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(n)}function nn(e,t){var n=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 n||e.addRemoteCandidate(t),!n}function rn(e,t){var n=new Error(t);return n.name=e,n.code={NotSupportedError:9,InvalidStateError:11,InvalidAccessError:15,TypeError:void 0,OperationError:void 0}[e],n}var on=function(e,t){function n(t,n){n.addTrack(t),n.dispatchEvent(new e.MediaStreamTrackEvent("addtrack",{track:t}))}function r(t,n,r,i){var o=new Event("track");o.track=n,o.receiver=r,o.transceiver={receiver:r},o.streams=i,e.setTimeout(function(){t._dispatchEvent("track",o)})}var i=function(n){var r=this,i=document.createDocumentFragment();if(["addEventListener","removeEventListener","dispatchEvent"].forEach(function(e){r[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",n=JSON.parse(JSON.stringify(n||{})),this.usingBundle="max-bundle"===n.bundlePolicy,"negotiate"===n.rtcpMuxPolicy)throw rn("NotSupportedError","rtcpMuxPolicy 'negotiate' is not supported");switch(n.rtcpMuxPolicy||(n.rtcpMuxPolicy="require"),n.iceTransportPolicy){case"all":case"relay":break;default:n.iceTransportPolicy="all"}switch(n.bundlePolicy){case"balanced":case"max-compat":case"max-bundle":break;default:n.bundlePolicy="balanced"}if(n.iceServers=function(e,t){var n=!1;return(e=JSON.parse(JSON.stringify(e))).filter(function(e){if(e&&(e.urls||e.url)){var r=e.urls||e.url;e.url&&!e.urls&&console.warn("RTCIceServer.url is deprecated! Use urls instead.");var i="string"==typeof r;return i&&(r=[r]),r=r.filter(function(e){return 0===e.indexOf("turn:")&&-1!==e.indexOf("transport=udp")&&-1===e.indexOf("turn:[")&&!n?(n=!0,!0):0===e.indexOf("stun:")&&t>=14393&&-1===e.indexOf("?transport=udp")}),delete e.url,e.urls=i?r[0]:r,!!r.length}})}(n.iceServers||[],t),this._iceGatherers=[],n.iceCandidatePoolSize)for(var o=n.iceCandidatePoolSize;o>0;o--)this._iceGatherers.push(new e.RTCIceGatherer({iceServers:n.iceServers,gatherPolicy:n.iceTransportPolicy}));else n.iceCandidatePoolSize=0;this._config=n,this.transceivers=[],this._sdpSessionId=Xt.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 n=this.transceivers.length>0,r={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&&n)r.iceTransport=this.transceivers[0].iceTransport,r.dtlsTransport=this.transceivers[0].dtlsTransport;else{var i=this._createIceAndDtlsTransports();r.iceTransport=i.iceTransport,r.dtlsTransport=i.dtlsTransport}return t||this.transceivers.push(r),r},i.prototype.addTrack=function(t,n){if(this._isClosed)throw rn("InvalidStateError","Attempted to call addTrack on a closed peerconnection.");var r;if(this.transceivers.find(function(e){return e.track===t}))throw rn("InvalidAccessError","Track already exists.");for(var i=0;i<this.transceivers.length;i++)this.transceivers[i].track||this.transceivers[i].kind!==t.kind||(r=this.transceivers[i]);return r||(r=this._createTransceiver(t.kind)),this._maybeFireNegotiationNeeded(),-1===this.localStreams.indexOf(n)&&this.localStreams.push(n),r.track=t,r.stream=n,r.rtpSender=new e.RTCRtpSender(t,r.dtlsTransport),r.rtpSender},i.prototype.addStream=function(e){var n=this;if(t>=15025)e.getTracks().forEach(function(t){n.addTrack(t,e)});else{var r=e.clone();e.getTracks().forEach(function(e,t){var n=r.getTracks()[t];e.addEventListener("enabled",function(e){n.enabled=e.enabled})}),r.getTracks().forEach(function(e){n.addTrack(e,r)})}},i.prototype.removeTrack=function(t){if(this._isClosed)throw rn("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 n=this.transceivers.find(function(e){return e.rtpSender===t});if(!n)throw rn("InvalidAccessError","Sender was not created by this connection.");var r=n.stream;n.rtpSender.stop(),n.rtpSender=null,n.track=null,n.stream=null,-1===this.transceivers.map(function(e){return e.stream}).indexOf(r)&&this.localStreams.indexOf(r)>-1&&this.localStreams.splice(this.localStreams.indexOf(r),1),this._maybeFireNegotiationNeeded()},i.prototype.removeStream=function(e){var t=this;e.getTracks().forEach(function(e){var n=t.getSenders().find(function(t){return t.track===e});n&&t.removeTrack(n)})},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,n){var r=this;if(n&&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 n=!e.candidate||0===Object.keys(e.candidate).length;i.state=n?"completed":"gathering",null!==r.transceivers[t].bufferedCandidateEvents&&r.transceivers[t].bufferedCandidateEvents.push(e)},i.addEventListener("localcandidate",this.transceivers[t].bufferCandidates),i},i.prototype._gather=function(t,n){var r=this,i=this.transceivers[n].iceGatherer;if(!i.onlocalcandidate){var o=this.transceivers[n].bufferedCandidateEvents;this.transceivers[n].bufferedCandidateEvents=null,i.removeEventListener("localcandidate",this.transceivers[n].bufferCandidates),i.onlocalcandidate=function(e){if(!(r.usingBundle&&n>0)){var o=new Event("icecandidate");o.candidate={sdpMid:t,sdpMLineIndex:n};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=Xt.writeCandidate(a);o.candidate=Object.assign(o.candidate,Xt.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 u=Xt.getMediaSections(r._localDescription.sdp);u[o.candidate.sdpMLineIndex]+=s?"a=end-of-candidates\r\n":"a="+o.candidate.candidate+"\r\n",r._localDescription.sdp=Xt.getDescription(r._localDescription.sdp)+u.join("");var d=r.transceivers.every(function(e){return e.iceGatherer&&"completed"===e.iceGatherer.state});"gathering"!==r.iceGatheringState&&(r.iceGatheringState="gathering",r._emitGatheringStateChange()),s||r._dispatchEvent("icecandidate",o),d&&(r._dispatchEvent("icecandidate",new Event("icecandidate")),r.iceGatheringState="complete",r._emitGatheringStateChange())}},e.setTimeout(function(){o.forEach(function(e){i.onlocalcandidate(e)})},0)}},i.prototype._createIceAndDtlsTransports=function(){var t=this,n=new e.RTCIceTransport(null);n.onicestatechange=function(){t._updateIceConnectionState(),t._updateConnectionState()};var r=new e.RTCDtlsTransport(n);return r.ondtlsstatechange=function(){t._updateConnectionState()},r.onerror=function(){Object.defineProperty(r,"state",{value:"failed",writable:!0}),t._updateConnectionState()},{iceTransport:n,dtlsTransport:r}},i.prototype._disposeIceAndDtlsTransports=function(e){var t=this.transceivers[e].iceGatherer;t&&(delete t.onlocalcandidate,delete this.transceivers[e].iceGatherer);var n=this.transceivers[e].iceTransport;n&&(delete n.onicestatechange,delete this.transceivers[e].iceTransport);var r=this.transceivers[e].dtlsTransport;r&&(delete r.ondtlsstatechange,delete r.onerror,delete this.transceivers[e].dtlsTransport)},i.prototype._transceive=function(e,n,r){var i=en(e.localCapabilities,e.remoteCapabilities);n&&e.rtpSender&&(i.encodings=e.sendEncodingParameters,i.rtcp={cname:Xt.localCName,compound:e.rtcpParameters.compound},e.recvEncodingParameters.length&&(i.rtcp.ssrc=e.recvEncodingParameters[0].ssrc),e.rtpSender.send(i)),r&&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,n,r=this;if(-1===["offer","answer"].indexOf(e.type))return Promise.reject(rn("TypeError",'Unsupported type "'+e.type+'"'));if(!tn("setLocalDescription",e.type,r.signalingState)||r._isClosed)return Promise.reject(rn("InvalidStateError","Can not set local "+e.type+" in state "+r.signalingState));if("offer"===e.type)t=Xt.splitSections(e.sdp),n=t.shift(),t.forEach(function(e,t){var n=Xt.parseRtpParameters(e);r.transceivers[t].localCapabilities=n}),r.transceivers.forEach(function(e,t){r._gather(e.mid,t)});else if("answer"===e.type){t=Xt.splitSections(r._remoteDescription.sdp),n=t.shift();var i=Xt.matchPrefix(n,"a=ice-lite").length>0;t.forEach(function(e,t){var o=r.transceivers[t],a=o.iceGatherer,s=o.iceTransport,c=o.dtlsTransport,u=o.localCapabilities,d=o.remoteCapabilities;if(!(Xt.isRejected(e)&&0===Xt.matchPrefix(e,"a=bundle-only").length)&&!o.rejected){var l=Xt.getIceParameters(e,n),p=Xt.getDtlsParameters(e,n);i&&(p.role="server"),r.usingBundle&&0!==t||(r._gather(o.mid,t),"new"===s.state&&s.start(a,l,i?"controlling":"controlled"),"new"===c.state&&c.start(p));var f=en(u,d);r._transceive(o,f.codecs.length>0,!1)}})}return r._localDescription={type:e.type,sdp:e.sdp},"offer"===e.type?r._updateSignalingState("have-local-offer"):r._updateSignalingState("stable"),Promise.resolve()},i.prototype.setRemoteDescription=function(i){var o=this;if(-1===["offer","answer"].indexOf(i.type))return Promise.reject(rn("TypeError",'Unsupported type "'+i.type+'"'));if(!tn("setRemoteDescription",i.type,o.signalingState)||o._isClosed)return Promise.reject(rn("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=Xt.splitSections(i.sdp),u=c.shift(),d=Xt.matchPrefix(u,"a=ice-lite").length>0,l=Xt.matchPrefix(u,"a=group:BUNDLE ").length>0;o.usingBundle=l;var p=Xt.matchPrefix(u,"a=ice-options:")[0];return o.canTrickleIceCandidates=!!p&&p.substr(14).split(" ").indexOf("trickle")>=0,c.forEach(function(r,c){var p=Xt.splitLines(r),f=Xt.getKind(r),h=Xt.isRejected(r)&&0===Xt.matchPrefix(r,"a=bundle-only").length,m=p[0].substr(2).split(" ")[2],v=Xt.getDirection(r,u),g=Xt.parseMsid(r),_=Xt.getMid(r)||Xt.generateIdentifier();if(h||"application"===f&&("DTLS/SCTP"===m||"UDP/DTLS/SCTP"===m))o.transceivers[c]={mid:_,kind:f,protocol:m,rejected:!0};else{var y,S,b,k,w,R,T,C,E;!h&&o.transceivers[c]&&o.transceivers[c].rejected&&(o.transceivers[c]=o._createTransceiver(f,!0));var I,P,x=Xt.parseRtpParameters(r);h||(I=Xt.getIceParameters(r,u),(P=Xt.getDtlsParameters(r,u)).role="client"),T=Xt.parseRtpEncodingParameters(r);var A=Xt.parseRtcpParameters(r),O=Xt.matchPrefix(r,"a=end-of-candidates",u).length>0,D=Xt.matchPrefix(r,"a=candidate:").map(function(e){return Xt.parseCandidate(e)}).filter(function(e){return 1===e.component});if(("offer"===i.type||"answer"===i.type)&&!h&&l&&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){S=(y=o.transceivers[c]).iceGatherer,b=y.iceTransport,k=y.dtlsTransport,w=y.rtpReceiver,R=y.sendEncodingParameters,C=y.localCapabilities,o.transceivers[c].recvEncodingParameters=T,o.transceivers[c].remoteCapabilities=x,o.transceivers[c].rtcpParameters=A,D.length&&"new"===b.state&&(!d&&!O||l&&0!==c?D.forEach(function(e){nn(y.iceTransport,e)}):b.setRemoteCandidates(D)),l&&0!==c||("new"===b.state&&b.start(S,I,"controlling"),"new"===k.state&&k.start(P)),!en(y.localCapabilities,y.remoteCapabilities).codecs.filter(function(e){return"rtx"===e.name.toLowerCase()}).length&&y.sendEncodingParameters[0].rtx&&delete y.sendEncodingParameters[0].rtx,o._transceive(y,"sendrecv"===v||"recvonly"===v,"sendrecv"===v||"sendonly"===v),!w||"sendrecv"!==v&&"sendonly"!==v?delete y.rtpReceiver:(E=w.track,g?(a[g.stream]||(a[g.stream]=new e.MediaStream),n(E,a[g.stream]),s.push([E,w,a[g.stream]])):(a.default||(a.default=new e.MediaStream),n(E,a.default),s.push([E,w,a.default])))}}else{(y=o.transceivers[c]||o._createTransceiver(f)).mid=_,y.iceGatherer||(y.iceGatherer=o._createIceGatherer(c,l)),D.length&&"new"===y.iceTransport.state&&(!O||l&&0!==c?D.forEach(function(e){nn(y.iceTransport,e)}):y.iceTransport.setRemoteCandidates(D)),C=e.RTCRtpReceiver.getCapabilities(f),t<15019&&(C.codecs=C.codecs.filter(function(e){return"rtx"!==e.name})),R=y.sendEncodingParameters||[{ssrc:1001*(2*c+2)}];var N,L=!1;if("sendrecv"===v||"sendonly"===v){if(L=!y.rtpReceiver,w=y.rtpReceiver||new e.RTCRtpReceiver(y.dtlsTransport,f),L)E=w.track,g&&"-"===g.stream||(g?(a[g.stream]||(a[g.stream]=new e.MediaStream,Object.defineProperty(a[g.stream],"id",{get:function(){return g.stream}})),Object.defineProperty(E,"id",{get:function(){return g.track}}),N=a[g.stream]):(a.default||(a.default=new e.MediaStream),N=a.default)),N&&(n(E,N),y.associatedRemoteMediaStreams.push(N)),s.push([E,w,N])}else y.rtpReceiver&&y.rtpReceiver.track&&(y.associatedRemoteMediaStreams.forEach(function(t){var n=t.getTracks().find(function(e){return e.id===y.rtpReceiver.track.id});n&&function(t,n){n.removeTrack(t),n.dispatchEvent(new e.MediaStreamTrackEvent("removetrack",{track:t}))}(n,t)}),y.associatedRemoteMediaStreams=[]);y.localCapabilities=C,y.remoteCapabilities=x,y.rtpReceiver=w,y.rtcpParameters=A,y.sendEncodingParameters=R,y.recvEncodingParameters=T,o._transceive(o.transceivers[c],!1,L)}}}),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 n=a[t];if(n.getTracks().length){if(-1===o.remoteStreams.indexOf(n)){o.remoteStreams.push(n);var i=new Event("addstream");i.stream=n,e.setTimeout(function(){o._dispatchEvent("addstream",i)})}s.forEach(function(e){var t=e[0],i=e[1];n.id===e[2].id&&r(o,t,i,[n])})}}),s.forEach(function(e){e[2]||r(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 n=new Event("iceconnectionstatechange");this._dispatchEvent("iceconnectionstatechange",n)}},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 n=new Event("connectionstatechange");this._dispatchEvent("connectionstatechange",n)}},i.prototype.createOffer=function(){var n=this;if(n._isClosed)return Promise.reject(rn("InvalidStateError","Can not call createOffer after close"));var r=n.transceivers.filter(function(e){return"audio"===e.kind}).length,i=n.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&&(r=!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(n.transceivers.forEach(function(e){"audio"===e.kind?--r<0&&(e.wantReceive=!1):"video"===e.kind&&--i<0&&(e.wantReceive=!1)});r>0||i>0;)r>0&&(n._createTransceiver("audio"),r--),i>0&&(n._createTransceiver("video"),i--);var a=Xt.writeSessionBoilerplate(n._sdpSessionId,n._sdpSessionVersion++);n.transceivers.forEach(function(r,i){var o=r.track,a=r.kind,s=r.mid||Xt.generateIdentifier();r.mid=s,r.iceGatherer||(r.iceGatherer=n._createIceGatherer(i,n.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"),r.remoteCapabilities&&r.remoteCapabilities.codecs&&r.remoteCapabilities.codecs.forEach(function(t){e.name.toLowerCase()===t.name.toLowerCase()&&e.clockRate===t.clockRate&&(e.preferredPayloadType=t.payloadType)})}),c.headerExtensions.forEach(function(e){(r.remoteCapabilities&&r.remoteCapabilities.headerExtensions||[]).forEach(function(t){e.uri===t.uri&&(e.id=t.id)})});var u=r.sendEncodingParameters||[{ssrc:1001*(2*i+1)}];o&&t>=15019&&"video"===a&&!u[0].rtx&&(u[0].rtx={ssrc:u[0].ssrc+1}),r.wantReceive&&(r.rtpReceiver=new e.RTCRtpReceiver(r.dtlsTransport,a)),r.localCapabilities=c,r.sendEncodingParameters=u}),"max-compat"!==n._config.bundlePolicy&&(a+="a=group:BUNDLE "+n.transceivers.map(function(e){return e.mid}).join(" ")+"\r\n"),a+="a=ice-options:trickle\r\n",n.transceivers.forEach(function(e,t){a+=Zt(e,e.localCapabilities,"offer",e.stream,n._dtlsRole),a+="a=rtcp-rsize\r\n",!e.iceGatherer||"new"===n.iceGatheringState||0!==t&&n.usingBundle||(e.iceGatherer.getLocalCandidates().forEach(function(e){e.component=1,a+="a="+Xt.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 n=this;if(n._isClosed)return Promise.reject(rn("InvalidStateError","Can not call createAnswer after close"));if("have-remote-offer"!==n.signalingState&&"have-local-pranswer"!==n.signalingState)return Promise.reject(rn("InvalidStateError","Can not call createAnswer in signalingState "+n.signalingState));var r=Xt.writeSessionBoilerplate(n._sdpSessionId,n._sdpSessionVersion++);n.usingBundle&&(r+="a=group:BUNDLE "+n.transceivers.map(function(e){return e.mid}).join(" ")+"\r\n"),r+="a=ice-options:trickle\r\n";var i=Xt.getMediaSections(n._remoteDescription.sdp).length;n.transceivers.forEach(function(e,o){if(!(o+1>i)){if(e.rejected)return"application"===e.kind?"DTLS/SCTP"===e.protocol?r+="m=application 0 DTLS/SCTP 5000\r\n":r+="m=application 0 "+e.protocol+" webrtc-datachannel\r\n":"audio"===e.kind?r+="m=audio 0 UDP/TLS/RTP/SAVPF 0\r\na=rtpmap:0 PCMU/8000\r\n":"video"===e.kind&&(r+="m=video 0 UDP/TLS/RTP/SAVPF 120\r\na=rtpmap:120 VP8/90000\r\n"),void(r+="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=en(e.localCapabilities,e.remoteCapabilities);!s.codecs.filter(function(e){return"rtx"===e.name.toLowerCase()}).length&&e.sendEncodingParameters[0].rtx&&delete e.sendEncodingParameters[0].rtx,r+=Zt(e,s,"answer",e.stream,n._dtlsRole),e.rtcpParameters&&e.rtcpParameters.reducedSize&&(r+="a=rtcp-rsize\r\n")}});var o=new e.RTCSessionDescription({type:"answer",sdp:r});return Promise.resolve(o)},i.prototype.addIceCandidate=function(e){var t,n=this;return e&&void 0===e.sdpMLineIndex&&!e.sdpMid?Promise.reject(new TypeError("sdpMLineIndex or sdpMid required")):new Promise(function(r,i){if(!n._remoteDescription)return i(rn("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<n.transceivers.length;a++)if(n.transceivers[a].mid===e.sdpMid){o=a;break}var s=n.transceivers[o];if(!s)return i(rn("OperationError","Can not add ICE candidate"));if(s.rejected)return r();var c=Object.keys(e.candidate).length>0?Xt.parseCandidate(e.candidate):{};if("tcp"===c.protocol&&(0===c.port||9===c.port))return r();if(c.component&&1!==c.component)return r();if((0===o||o>0&&s.iceTransport!==n.transceivers[0].iceTransport)&&!nn(s.iceTransport,c))return i(rn("OperationError","Can not add ICE candidate"));var u=e.candidate.trim();0===u.indexOf("a=")&&(u=u.substr(2)),(t=Xt.getMediaSections(n._remoteDescription.sdp))[o]+="a="+(c.type?u:"end-of-candidates")+"\r\n",n._remoteDescription.sdp=Xt.getDescription(n._remoteDescription.sdp)+t.join("")}else for(var d=0;d<n.transceivers.length&&(n.transceivers[d].rejected||(n.transceivers[d].iceTransport.addRemoteCandidate({}),(t=Xt.getMediaSections(n._remoteDescription.sdp))[d]+="a=end-of-candidates\r\n",n._remoteDescription.sdp=Xt.getDescription(n._remoteDescription.sdp)+t.join(""),!n.usingBundle));d++);r()})},i.prototype.getStats=function(t){if(t&&t instanceof e.MediaStreamTrack){var n=null;if(this.transceivers.forEach(function(e){e.rtpSender&&e.rtpSender.track===t?n=e.rtpSender:e.rtpReceiver&&e.rtpReceiver.track===t&&(n=e.rtpReceiver)}),!n)throw rn("InvalidAccessError","Invalid selector.");return n.getStats()}var r=[];return this.transceivers.forEach(function(e){["rtpSender","rtpReceiver","iceGatherer","iceTransport","dtlsTransport"].forEach(function(t){e[t]&&r.push(e[t].getStats())})}),Promise.all(r).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 n=e[t];if(n&&n.prototype&&n.prototype.getStats){var r=n.prototype.getStats;n.prototype.getStats=function(){return r.apply(this).then(function(e){var t=new Map;return Object.keys(e).forEach(function(n){var r;e[n].type={inboundrtp:"inbound-rtp",outboundrtp:"outbound-rtp",candidatepair:"candidate-pair",localcandidate:"local-candidate",remotecandidate:"remote-candidate"}[(r=e[n]).type]||r.type,t.set(n,e[n])}),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};function an(e){const t=e&&e.navigator,n=t.mediaDevices.getUserMedia.bind(t.mediaDevices);t.mediaDevices.getUserMedia=function(e){return n(e).catch(e=>Promise.reject(function(e){return{name:{PermissionDeniedError:"NotAllowedError"}[e.name]||e.name,message:e.message,constraint:e.constraint,toString(){return this.name}}}(e)))}}function sn(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 cn(e){const t=Mt(e);if(e.RTCIceGatherer&&(e.RTCIceCandidate||(e.RTCIceCandidate=function(e){return e}),e.RTCSessionDescription||(e.RTCSessionDescription=function(e){return e}),t.version<15025)){const t=Object.getOwnPropertyDescriptor(e.MediaStreamTrack.prototype,"enabled");Object.defineProperty(e.MediaStreamTrack.prototype,"enabled",{set(e){t.set.call(this,e);const n=new Event("enabled");n.enabled=e,this.dispatchEvent(n)}})}!e.RTCRtpSender||"dtmf"in e.RTCRtpSender.prototype||Object.defineProperty(e.RTCRtpSender.prototype,"dtmf",{get(){return void 0===this._dtmf&&("audio"===this.track.kind?this._dtmf=new e.RTCDtmfSender(this):"video"===this.track.kind&&(this._dtmf=null)),this._dtmf}}),e.RTCDtmfSender&&!e.RTCDTMFSender&&(e.RTCDTMFSender=e.RTCDtmfSender);const n=on(e,t.version);e.RTCPeerConnection=function(e){return e&&e.iceServers&&(e.iceServers=function(e,t){let n=!1;return(e=JSON.parse(JSON.stringify(e))).filter(e=>{if(e&&(e.urls||e.url)){var t=e.urls||e.url;e.url&&!e.urls&&Lt("RTCIceServer.url","RTCIceServer.urls");const r="string"==typeof t;return r&&(t=[t]),t=t.filter(e=>{if(0===e.indexOf("stun:"))return!1;const 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}})}(e.iceServers,t.version),Nt("ICE servers after filtering:",e.iceServers)),new n(e)},e.RTCPeerConnection.prototype=n.prototype}function un(e){!e.RTCRtpSender||"replaceTrack"in e.RTCRtpSender.prototype||(e.RTCRtpSender.prototype.replaceTrack=e.RTCRtpSender.prototype.setTrack)}var dn=Object.freeze({shimPeerConnection:cn,shimReplaceTrack:un,shimGetUserMedia:an,shimGetDisplayMedia:sn});function ln(e){const t=Mt(e),n=e&&e.navigator,r=e&&e.MediaStreamTrack;if(n.getUserMedia=function(e,t,r){Lt("navigator.getUserMedia","navigator.mediaDevices.getUserMedia"),n.mediaDevices.getUserMedia(e).then(t,r)},!(t.version>55&&"autoGainControl"in n.mediaDevices.getSupportedConstraints())){const e=function(e,t,n){t in e&&!(n in e)&&(e[n]=e[t],delete e[t])},t=n.mediaDevices.getUserMedia.bind(n.mediaDevices);if(n.mediaDevices.getUserMedia=function(n){return"object"==typeof n&&"object"==typeof n.audio&&(n=JSON.parse(JSON.stringify(n)),e(n.audio,"autoGainControl","mozAutoGainControl"),e(n.audio,"noiseSuppression","mozNoiseSuppression")),t(n)},r&&r.prototype.getSettings){const t=r.prototype.getSettings;r.prototype.getSettings=function(){const n=t.apply(this,arguments);return e(n,"mozAutoGainControl","autoGainControl"),e(n,"mozNoiseSuppression","noiseSuppression"),n}}if(r&&r.prototype.applyConstraints){const t=r.prototype.applyConstraints;r.prototype.applyConstraints=function(n){return"audio"===this.kind&&"object"==typeof n&&(n=JSON.parse(JSON.stringify(n)),e(n,"autoGainControl","mozAutoGainControl"),e(n,"noiseSuppression","mozNoiseSuppression")),t.apply(this,[n])}}}}function pn(e){"object"==typeof e&&e.RTCTrackEvent&&"receiver"in e.RTCTrackEvent.prototype&&!("transceiver"in e.RTCTrackEvent.prototype)&&Object.defineProperty(e.RTCTrackEvent.prototype,"transceiver",{get(){return{receiver:this.receiver}}})}function fn(e){const t=Mt(e);if("object"!=typeof e||!e.RTCPeerConnection&&!e.mozRTCPeerConnection)return;!e.RTCPeerConnection&&e.mozRTCPeerConnection&&(e.RTCPeerConnection=e.mozRTCPeerConnection),t.version<53&&["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach(function(t){const n=e.RTCPeerConnection.prototype[t],r={[t](){return arguments[0]=new("addIceCandidate"===t?e.RTCIceCandidate:e.RTCSessionDescription)(arguments[0]),n.apply(this,arguments)}};e.RTCPeerConnection.prototype[t]=r[t]});const n=e.RTCPeerConnection.prototype.addIceCandidate;e.RTCPeerConnection.prototype.addIceCandidate=function(){return arguments[0]?t.version<68&&arguments[0]&&""===arguments[0].candidate?Promise.resolve():n.apply(this,arguments):(arguments[1]&&arguments[1].apply(null),Promise.resolve())};const r={inboundrtp:"inbound-rtp",outboundrtp:"outbound-rtp",candidatepair:"candidate-pair",localcandidate:"local-candidate",remotecandidate:"remote-candidate"},i=e.RTCPeerConnection.prototype.getStats;e.RTCPeerConnection.prototype.getStats=function(){const[e,n,o]=arguments;return i.apply(this,[e||null]).then(e=>{if(t.version<53&&!n)try{e.forEach(e=>{e.type=r[e.type]||e.type})}catch(i){if("TypeError"!==i.name)throw i;e.forEach((t,n)=>{e.set(n,Object.assign({},t,{type:r[t.type]||t.type}))})}return e}).then(n,o)}}function hn(e){if("object"!=typeof e||!e.RTCPeerConnection||!e.RTCRtpSender)return;if(e.RTCRtpSender&&"getStats"in e.RTCRtpSender.prototype)return;const t=e.RTCPeerConnection.prototype.getSenders;t&&(e.RTCPeerConnection.prototype.getSenders=function(){const e=t.apply(this,[]);return e.forEach(e=>e._pc=this),e});const n=e.RTCPeerConnection.prototype.addTrack;n&&(e.RTCPeerConnection.prototype.addTrack=function(){const e=n.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 mn(e){if("object"!=typeof e||!e.RTCPeerConnection||!e.RTCRtpSender)return;if(e.RTCRtpSender&&"getStats"in e.RTCRtpReceiver.prototype)return;const t=e.RTCPeerConnection.prototype.getReceivers;t&&(e.RTCPeerConnection.prototype.getReceivers=function(){const e=t.apply(this,[]);return e.forEach(e=>e._pc=this),e}),At(e,"track",e=>(e.receiver._pc=e.srcElement,e)),e.RTCRtpReceiver.prototype.getStats=function(){return this._pc.getStats(this.track)}}function vn(e){!e.RTCPeerConnection||"removeStream"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.removeStream=function(e){Lt("removeStream","removeTrack"),this.getSenders().forEach(t=>{t.track&&e.getTracks().includes(t.track)&&this.removeTrack(t)})})}function gn(e){e.DataChannel&&!e.RTCDataChannel&&(e.RTCDataChannel=e.DataChannel)}var _n=Object.freeze({shimOnTrack:pn,shimPeerConnection:fn,shimSenderGetStats:hn,shimReceiverGetStats:mn,shimRemoveStream:vn,shimRTCDataChannel:gn,shimGetUserMedia:ln,shimGetDisplayMedia:function(e,t){e.navigator.mediaDevices&&"getDisplayMedia"in e.navigator.mediaDevices||e.navigator.mediaDevices&&(e.navigator.mediaDevices.getDisplayMedia=function(n){if(!n||!n.video){const e=new DOMException("getDisplayMedia without video constraints is undefined");return e.name="NotFoundError",e.code=8,Promise.reject(e)}return!0===n.video?n.video={mediaSource:t}:n.video.mediaSource=t,e.navigator.mediaDevices.getUserMedia(n)})}});function yn(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)){const t=e.RTCPeerConnection.prototype.addTrack;e.RTCPeerConnection.prototype.addStream=function(e){this._localStreams||(this._localStreams=[]),this._localStreams.includes(e)||this._localStreams.push(e),e.getAudioTracks().forEach(n=>t.call(this,n,e)),e.getVideoTracks().forEach(n=>t.call(this,n,e))},e.RTCPeerConnection.prototype.addTrack=function(e){const n=arguments[1];return n&&(this._localStreams?this._localStreams.includes(n)||this._localStreams.push(n):this._localStreams=[n]),t.apply(this,arguments)}}"removeStream"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.removeStream=function(e){this._localStreams||(this._localStreams=[]);const t=this._localStreams.indexOf(e);if(-1===t)return;this._localStreams.splice(t,1);const n=e.getTracks();this.getSenders().forEach(e=>{n.includes(e.track)&&this.removeTrack(e)})})}}function Sn(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(){return this._onaddstream},set(e){this._onaddstream&&(this.removeEventListener("addstream",this._onaddstream),this.removeEventListener("track",this._onaddstreampoly)),this.addEventListener("addstream",this._onaddstream=e),this.addEventListener("track",this._onaddstreampoly=e=>{e.streams.forEach(e=>{if(this._remoteStreams||(this._remoteStreams=[]),this._remoteStreams.includes(e))return;this._remoteStreams.push(e);const t=new Event("addstream");t.stream=e,this.dispatchEvent(t)})})}});const t=e.RTCPeerConnection.prototype.setRemoteDescription;e.RTCPeerConnection.prototype.setRemoteDescription=function(){const e=this;return this._onaddstreampoly||this.addEventListener("track",this._onaddstreampoly=function(t){t.streams.forEach(t=>{if(e._remoteStreams||(e._remoteStreams=[]),e._remoteStreams.indexOf(t)>=0)return;e._remoteStreams.push(t);const n=new Event("addstream");n.stream=t,e.dispatchEvent(n)})}),t.apply(e,arguments)}}}function bn(e){if("object"!=typeof e||!e.RTCPeerConnection)return;const t=e.RTCPeerConnection.prototype,n=t.createOffer,r=t.createAnswer,i=t.setLocalDescription,o=t.setRemoteDescription,a=t.addIceCandidate;t.createOffer=function(e,t){const r=arguments.length>=2?arguments[2]:arguments[0],i=n.apply(this,[r]);return t?(i.then(e,t),Promise.resolve()):i},t.createAnswer=function(e,t){const n=arguments.length>=2?arguments[2]:arguments[0],i=r.apply(this,[n]);return t?(i.then(e,t),Promise.resolve()):i};let s=function(e,t,n){const r=i.apply(this,[e]);return n?(r.then(t,n),Promise.resolve()):r};t.setLocalDescription=s,s=function(e,t,n){const r=o.apply(this,[e]);return n?(r.then(t,n),Promise.resolve()):r},t.setRemoteDescription=s,s=function(e,t,n){const r=a.apply(this,[e]);return n?(r.then(t,n),Promise.resolve()):r},t.addIceCandidate=s}function kn(e){const t=e&&e.navigator;if(t.mediaDevices&&t.mediaDevices.getUserMedia){const e=t.mediaDevices,n=e.getUserMedia.bind(e);t.mediaDevices.getUserMedia=e=>n(wn(e))}!t.getUserMedia&&t.mediaDevices&&t.mediaDevices.getUserMedia&&(t.getUserMedia=function(e,n,r){t.mediaDevices.getUserMedia(e).then(n,r)}.bind(t))}function wn(e){return e&&void 0!==e.video?Object.assign({},e,{video:Ut(e.video)}):e}function Rn(e){const t=e.RTCPeerConnection;e.RTCPeerConnection=function(e,n){if(e&&e.iceServers){const t=[];for(let n=0;n<e.iceServers.length;n++){let r=e.iceServers[n];!r.hasOwnProperty("urls")&&r.hasOwnProperty("url")?(Lt("RTCIceServer.url","RTCIceServer.urls"),(r=JSON.parse(JSON.stringify(r))).urls=r.url,delete r.url,t.push(r)):t.push(e.iceServers[n])}e.iceServers=t}return new t(e,n)},e.RTCPeerConnection.prototype=t.prototype,"generateCertificate"in e.RTCPeerConnection&&Object.defineProperty(e.RTCPeerConnection,"generateCertificate",{get:()=>t.generateCertificate})}function Tn(e){"object"==typeof e&&e.RTCTrackEvent&&"receiver"in e.RTCTrackEvent.prototype&&!("transceiver"in e.RTCTrackEvent.prototype)&&Object.defineProperty(e.RTCTrackEvent.prototype,"transceiver",{get(){return{receiver:this.receiver}}})}function Cn(e){const t=e.RTCPeerConnection.prototype.createOffer;e.RTCPeerConnection.prototype.createOffer=function(e){if(e){void 0!==e.offerToReceiveAudio&&(e.offerToReceiveAudio=!!e.offerToReceiveAudio);const t=this.getTransceivers().find(e=>"audio"===e.receiver.track.kind);!1===e.offerToReceiveAudio&&t?"sendrecv"===t.direction?t.setDirection?t.setDirection("sendonly"):t.direction="sendonly":"recvonly"===t.direction&&(t.setDirection?t.setDirection("inactive"):t.direction="inactive"):!0!==e.offerToReceiveAudio||t||this.addTransceiver("audio"),void 0!==e.offerToReceiveVideo&&(e.offerToReceiveVideo=!!e.offerToReceiveVideo);const n=this.getTransceivers().find(e=>"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)}}var En=Object.freeze({shimLocalStreamsAPI:yn,shimRemoteStreamsAPI:Sn,shimCallbacksAPI:bn,shimGetUserMedia:kn,shimConstraints:wn,shimRTCIceServerUrls:Rn,shimTrackEventTransceiver:Tn,shimCreateOfferLegacy:Cn});function In(e){if(!e.RTCIceCandidate||e.RTCIceCandidate&&"foundation"in e.RTCIceCandidate.prototype)return;const t=e.RTCIceCandidate;e.RTCIceCandidate=function(e){if("object"==typeof e&&e.candidate&&0===e.candidate.indexOf("a=")&&((e=JSON.parse(JSON.stringify(e))).candidate=e.candidate.substr(2)),e.candidate&&e.candidate.length){const n=new t(e),r=Xt.parseCandidate(e.candidate),i=Object.assign(n,r);return i.toJSON=function(){return{candidate:i.candidate,sdpMid:i.sdpMid,sdpMLineIndex:i.sdpMLineIndex,usernameFragment:i.usernameFragment}},i}return new t(e)},e.RTCIceCandidate.prototype=t.prototype,At(e,"icecandidate",t=>(t.candidate&&Object.defineProperty(t,"candidate",{value:new e.RTCIceCandidate(t.candidate),writable:"false"}),t))}function Pn(e){if(!e.RTCPeerConnection)return;const t=Mt(e);"sctp"in e.RTCPeerConnection.prototype||Object.defineProperty(e.RTCPeerConnection.prototype,"sctp",{get(){return void 0===this._sctp?null:this._sctp}});const n=function(e){if(!e||!e.sdp)return!1;const t=Xt.splitSections(e.sdp);return t.shift(),t.some(e=>{const t=Xt.parseMLine(e);return t&&"application"===t.kind&&-1!==t.protocol.indexOf("SCTP")})},r=function(e){const t=e.sdp.match(/mozilla...THIS_IS_SDPARTA-(\d+)/);if(null===t||t.length<2)return-1;const n=parseInt(t[1],10);return n!=n?-1:n},i=function(e){let n=65536;return"firefox"===t.browser&&(n=t.version<57?-1===e?16384:2147483637:t.version<60?57===t.version?65535:65536:2147483637),n},o=function(e,n){let r=65536;"firefox"===t.browser&&57===t.version&&(r=65535);const i=Xt.matchPrefix(e.sdp,"a=max-message-size:");return i.length>0?r=parseInt(i[0].substr(19),10):"firefox"===t.browser&&-1!==n&&(r=2147483637),r},a=e.RTCPeerConnection.prototype.setRemoteDescription;e.RTCPeerConnection.prototype.setRemoteDescription=function(){if(this._sctp=null,"chrome"===t.browser&&t.version>=76){const{sdpSemantics:e}=this.getConfiguration();"plan-b"===e&&Object.defineProperty(this,"sctp",{get(){return void 0===this._sctp?null:this._sctp},enumerable:!0,configurable:!0})}if(n(arguments[0])){const e=r(arguments[0]),t=i(e),n=o(arguments[0],e);let a;a=0===t&&0===n?Number.POSITIVE_INFINITY:0===t||0===n?Math.max(t,n):Math.min(t,n);const s={};Object.defineProperty(s,"maxMessageSize",{get:()=>a}),this._sctp=s}return a.apply(this,arguments)}}function xn(e){if(!(e.RTCPeerConnection&&"createDataChannel"in e.RTCPeerConnection.prototype))return;function t(e,t){const n=e.send;e.send=function(){const r=arguments[0],i=r.length||r.size||r.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 n.apply(e,arguments)}}const n=e.RTCPeerConnection.prototype.createDataChannel;e.RTCPeerConnection.prototype.createDataChannel=function(){const e=n.apply(this,arguments);return t(e,this),e},At(e,"datachannel",e=>(t(e.channel,e.target),e))}function An(e){if(!e.RTCPeerConnection||"connectionState"in e.RTCPeerConnection.prototype)return;const t=e.RTCPeerConnection.prototype;Object.defineProperty(t,"connectionState",{get(){return{completed:"connected",checking:"connecting"}[this.iceConnectionState]||this.iceConnectionState},enumerable:!0,configurable:!0}),Object.defineProperty(t,"onconnectionstatechange",{get(){return this._onconnectionstatechange||null},set(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(e=>{const n=t[e];t[e]=function(){return this._connectionstatechangepoly||(this._connectionstatechangepoly=e=>{const t=e.target;if(t._lastConnectionState!==t.connectionState){t._lastConnectionState=t.connectionState;const n=new Event("connectionstatechange",e);t.dispatchEvent(n)}return e},this.addEventListener("iceconnectionstatechange",this._connectionstatechangepoly)),n.apply(this,arguments)}})}function On(e){if(!e.RTCPeerConnection)return;const t=Mt(e);if("chrome"===t.browser&&t.version>=71)return;const n=e.RTCPeerConnection.prototype.setRemoteDescription;e.RTCPeerConnection.prototype.setRemoteDescription=function(e){return 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this.code_}},{key:"getExtraCode",value:function(){return this.extraCode_}}]),t}(),dl={sdkAppId:"",userId:"",version:"",env:"qcloud",browserVersion:"",ua:""},ll=function(e){dl.sdkAppId="".concat(e.sdkAppId),dl.version="".concat(e.version),dl.env=e.env,dl.userId=e.userId,dl.browserVersion=e.browserVersion,dl.ua=e.ua},pl=function(e){var t=JSON.stringify({timestamp:Co(),sdkAppId:dl.sdkAppId,userId:dl.userId,version:dl.version,log:e});wo.post("https://yun.tim.qq.com/v5/AVQualityReportSvc/C2S?sdkappid=1&cmdtype=jssdk_log",t).then(function(e){}).catch(function(e){console.log(e)})},fl=function(e){"qcloud"===dl.env&&function(e){var t="stat-".concat(e.eventType,"-").concat(e.result);"delta-join"!==e.eventType&&"delta-leave"!==e.eventType&&"delta-publish"!==e.eventType||(t="".concat(e.eventType,":").concat(e.delta)),pl(t),"join"===e.eventType&&"failed"===e.result&&(t="stat-".concat(e.eventType,"-").concat(e.result,"-").concat(e.code),pl(t))}(e);var t=_t({},e,dl);void 0===t.code&&(t.code="failed"===t.result?sl.UNKNOWN:0),wo.post("https://yun.tim.qq.com/v5/AVQualityReportSvc/C2S?sdkappid=1&cmdtype=jssdk_event",JSON.stringify(t)).then(function(e){}).catch(function(e){console.log(e)})},hl=32768,ml=32769,vl=32770,gl=32771,_l=32772,yl=32773,Sl=32774,bl=32775,kl=32776,wl=32777,Rl=32778,Tl=32779,Cl=32780,El=32781,Il=32782,Pl=32783,xl=32784,Al=32785,Ol=32786,Dl=32787,Nl=32788,Ll=32789,Ml=32790,jl=32791,Ul=32792,Vl=32793,Fl=new Map,Wl=function(e,t){var n=Fl.get(e);n||(Fl.set(e,[]),n=Fl.get(e)),n.push(t)},Bl=function(e){var t=Fl.get(e);return t?Fl.delete(e):t=[],t},Gl=3,Hl=function(){function e(t){ht(this,e),this.sdkAppId_=t.sdkAppId,this.userId_=t.userId,this.userSig_=t.userSig,this.url_=t.url,this.backupUrl_=t.backupUrl,this.version_=t.version,this.urlWithParam_="".concat(this.url_,"?sdkAppid=").concat(this.sdkAppId_,"&identifier=").concat(this.userId_,"&userSig=").concat(this.userSig_),this.backupUrlWithParam_="".concat(this.backupUrl_,"?sdkAppid=").concat(this.sdkAppId_,"&identifier=").concat(this.userId_,"&userSig=").concat(this.userSig_),this.isConnected_=!1,this.isConnecting_=!1,this.tryCount_=Gl,this.socketInUse_=null,this.socket_=null,this.backupSocket_=null,this.backupTimer_=-1,this.reconnectTimer_=-1,this.signalInfo_={},this.currentState_=qd.DISCONNECTED,this.emitter_=new Hd}return vt(e,[{key:"connect",value:function(){var e=this;sr.info("connect to url: ".concat(this.urlWithParam_)),this.emitter_.emit(zd,{prevState:this.currentState_,state:qd.CONNECTING}),this.currentState_=qd.CONNECTING,this.socket_=new WebSocket(this.urlWithParam_),this.bindSocket(this.socket_),this.backupTimer_=setTimeout(function(){e.isConnected_||(sr.info("trying to connect to backupUrl"),e.tryConnectBackup())},1e3)}},{key:"tryConnectBackup",value:function(){this.backupSocket_||(sr.debug("try to connect to url: ".concat(this.backupUrlWithParam_)),this.backupSocket_=new WebSocket(this.backupUrlWithParam_),this.bindSocket(this.backupSocket_))}},{key:"bindSocket",value:function(e){e.onopen=this.onopen.bind(this),e.onclose=this.onclose.bind(this),e.onerror=this.onerror.bind(this),e.onmessage=this.onmessage.bind(this)}},{key:"unbindSocket",value:function(e){e.onopen=function(){},e.onclose=function(){},e.onerror=function(){},e.onmessage=function(){}}},{key:"unbindAndCloseSocket",value:function(e){if("main"===e){if(this.socket_){this.unbindSocket(this.socket_);try{this.socket_.close(1e3)}catch(t){}this.socket_=null}}else if(this.backupSocket_){this.unbindSocket(this.backupSocket_);try{this.backupSocket_.close(1e3)}catch(t){}this.backupSocket_=null}}},{key:"clearBackupTimer",value:function(){-1!==this.backupTimer_&&(clearTimeout(this.backupTimer_),this.backupTimer_=-1)}},{key:"onopen",value:function(e){if(!this.isConnected_){this.isConnecting_?fl({eventType:"websocketReconnectionState",result:"success"}):fl({eventType:"websocketConnectionState",result:"success"}),this.isConnected_=!0,this.isConnecting_=!1,this.clearBackupTimer(),e.target===this.socket_?(this.unbindAndCloseSocket("backup"),this.socketInUse_=this.socket_):(this.unbindAndCloseSocket("main"),this.socketInUse_=this.backupSocket_);var t=e.target.url;sr.info("[".concat(this.userId_,"] websocket[").concat(t,"] is connected")),this.emitter_.emit(zd,{prevState:this.currentState_,state:qd.CONNECTED}),this.currentState_=qd.CONNECTED}}},{key:"onclose",value:function(e){var t=e.target.url,n=e.target===this.socketInUse_;sr.info("[".concat(this.userId_,"] websocket[").concat(t," InUse: ").concat(n,"] is closed with code: ").concat(e.code)),e.target===this.socketInUse_&&(this.isConnected_=!1,this.addSignalEvent("disconnected"),e.wasClean&&1e3===e.code?(this.emitter_.emit(zd,{prevState:this.currentState_,state:qd.DISCONNECTED}),this.currentState_=qd.DISCONNECTED):(sr.warn("[".concat(this.userId_,"] onclose code:").concat(e.code," reason:").concat(e.reason)),this.isConnecting_&&this.tryCount_<=0?(this.isConnecting_=!1,this.tryCount_=Gl,sr.error("[".concat(this.userId_,"] reconnect failed")),this.emitter_.emit(zd,{prevState:this.currentState_,state:qd.DISCONNECTED}),this.currentState_=qd.DISCONNECTED,fl({eventType:"websocketReconnectionState",result:"failed",code:sl.SIGNAL_CHANNEL_ERROR}),this.emitter_.emit(Jd,new ul({code:sl.SIGNAL_CHANNEL_ERROR,message:"WebSocket reconnection failed"}))):(sr.warn("close current websocket and schedule a reconnect timeout"),this.socketInUse_.onclose=function(){},this.socketInUse_.close(4011),this.socket_=this.backupSocket_=this.socketInUse_=null,this.reconnect(t))))}},{key:"onerror",value:function(e){var t=e.target.url;sr.error("[".concat(this.userId_,"] websocket[").concat(t,"] error observed")),this.isConnected_?e.target===this.socketInUse_&&(this.isConnected_=!1,this.unbindAndCloseSocket("main"),this.unbindAndCloseSocket("backup"),this.socketInUse_=null,this.addSignalEvent("disconnected"),this.emitter_.emit(Jd,new ul({code:sl.SIGNAL_CHANNEL_ERROR,message:"WebSocket error observed"}))):(e.target==this.socket_?(this.unbindAndCloseSocket("main"),this.isConnecting_||(sr.warn("main socket error observed, try connecting to backup domain"),this.tryConnectBackup())):this.unbindAndCloseSocket("backup"),null===this.socket_&&null===this.backupSocket_&&(this.isConnecting_?fl({eventType:"websocketReconnectionState",result:"failed",code:sl.SIGNAL_CHANNEL_ERROR}):fl({eventType:"websocketConnectionState",result:"failed",code:sl.SIGNAL_CHANNEL_ERROR}),sr.error("SignalChannel setup failed"),this.emitter_.emit(Jd,new ul({code:sl.SIGNAL_CHANNEL_ERROR,message:"failed to connect to remote server via websocket"}))))}},{key:"onmessage",value:function(e){var t=this;if(this.isConnected_){var n=JSON.parse(e.data),r=n.cmd,i=n.content,o=Object.values(Qd),a=Object.keys(Qd)[o.indexOf(r)],s=Kd[a];if(r!==Qd.UPDATE_REMOTE_MUTE_STAT&&r!==Qd.UPLINK_NETWORK_STATS){var c=e.target==this.socket_?this.url_:this.backupUrl_;if(sr.debug("[".concat(this.userId_,"] websocket[").concat(c,"] received message: ").concat(e.data)),sr.info("[".concat(this.userId_,"] Received event: [ ").concat(s||"unknown cmd: "+r," ]")),(s===Kd.UPDATE_REMOTE_SDP||s===Kd.UPDATE_AUDIO_SSRC||s===Kd.UPDATE_VIDEO_SSRC)&&i.offersdp)try{var u=JSON.parse(i.offersdp),d=u.audiossrc,l=u.videossrc,p=u.rtxssrc;sr.info("[".concat(this.userId_,"] ssrc info in offersdp: [ audiossrc: ").concat(d," videossrc: ").concat(l," rtxssrc: ").concat(p," ]"))}catch(m){}}switch(r){case Qd.CHANNEL_SETUP_SUCCESS:this.signalInfo_.relayIp=i.relayip,this.signalInfo_.relayInnerIp=i.innerip,this.signalInfo_.signalIp=i.signalip,this.signalInfo_.localIp=i.localip,this.signalInfo_.dataPort=i.dataport,this.signalInfo_.stunPort=i.stunport,this.signalInfo_.checkSigSeq=i.checkSigSeq,this.signalInfo_.socketId=i.socketid,this.signalInfo_.tinyId=i.tinyid,this.signalInfo_.openId=i.openid,this.signalInfo_.stunPortList=i.stunportList,!i.stunportList||i.stunportList.length<=0?this.signalInfo_.stunServers="stun:"+i.relayip+":"+i.stunport:(this.signalInfo_.stunServers=[],i.stunportList.forEach(function(e){var n="stun:"+i.relayip+":"+e;t.signalInfo_.stunServers.push(n)})),i.cgiurl&&(this.signalInfo_.logCgiUrl=i.cgiurl),i.svrTime&&function(e){Ro=e-(new Date).getTime();var t=new Date;t.setTime(e),sr.info("baseTime from server: "+t+" offset: "+Ro)}(i.svrTime),sr.info("ChannelSetup Success: signalIp:".concat(i.signalip," relayIp:").concat(i.relayip," clientIp:").concat(i.localip," checkSigSeq:").concat(i.checkSigSeq)),1===(i.rc||0)?this.emitter_.emit(Kd.REQUEST_REBUILD_SESSION,{signalInfo:this.signalInfo_}):this.emitter_.emit(s,{signalInfo:this.signalInfo_}),this.addSignalEvent("connected");break;case Qd.CHANNEL_SETUP_FAILED:var f="sdkAppId invalid",h="";void 0!==i.errorCode&&(f=i.errorCode,h=i.errorMsg),this.emitter_.emit(Jd,new ul({code:sl.SIGNAL_CHANNEL_SETUP_FAILED,message:"SignalChannel setup failure: ('errorCode': ".concat(f,", 'errorMsg': ").concat(h," })")}));break;case Qd.CHANNEL_RECONNECT_RESULT:-1===i.result&&(sr.error("SignalChannel reconnect failed for the user may have left the room from the perspective of remote relay server"),fl({eventType:"websocketReconnectionState",result:"failed",code:sl.SIGNAL_CHANNEL_ERROR}),this.addSignalEvent("disconnected"),this.emitter_.emit(Jd,new ul({code:sl.SIGNAL_CHANNEL_ERROR,message:"SignalChannel reconnect failed"})));break;default:this.emitter_.emit(s,{data:n})}}}},{key:"addSignalEvent",value:function(e){Wl(this.userId_,"connected"===e?{eventId:jl,eventDesc:"signal channel is connected",timestamp:To(),userId:this.userId_,tinyId:this.signalInfo_.tinyId}:{eventId:Ml,eventDesc:"signal channel is disconnected",timestamp:To(),userId:this.userId_,tinyId:this.signalInfo_.tinyId})}},{key:"reconnect",value:function(e){var t=this;this.reconnectTimer_=setTimeout(function(){t.isConnecting_=!0,t.tryCount_-=1;var n=e;Bd(t.signalInfo_)||-1!==e.indexOf("&rc=1")||(n=e+"&iip="+t.signalInfo_.relayInnerIp+"&dp="+t.signalInfo_.dataPort+"&oip="+t.signalInfo_.relayIp+"&sp="+t.signalInfo_.stunPort+"&rc=1"),t.emitter_.emit(zd,{prevState:t.currentState_,state:qd.RECONNECTING}),t.currentState_=qd.RECONNECTING,t.socket_=new WebSocket(n),t.bindSocket(t.socket_)},3e3)}},{key:"isConnected",value:function(){return this.isConnected_}},{key:"send",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"",n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:void 0;if(this.isConnected_){var r=this.createSendMessage(e);r.data=t,void 0!==n&&(r.srctinyid=n),this.socketInUse_.send(JSON.stringify(r))}}},{key:"sendWithReport",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"",n=arguments.length>2?arguments[2]:void 0;if(this.isConnected_){var r=this.createSendMessage(e);r.data=t,r.report=n,this.socketInUse_.send(JSON.stringify(r))}}},{key:"createSendMessage",value:function(e){return{tag_key:e,data:"",openid:this.userId_,tinyid:this.signalInfo_.tinyId,version:this.version_,ua:navigator.userAgent}}},{key:"close",value:function(){sr.info("close SignalChannel"),-1!==this.reconnectTimer_&&(clearTimeout(this.reconnectTimer_),this.reconnectTimer_=-1),this.clearBackupTimer(),this.isConnected_=!1,this.socketInUse_=null,this.unbindAndCloseSocket("main"),this.unbindAndCloseSocket("backup")}},{key:"on",value:function(e,t,n){this.emitter_.on(e,t,n)}},{key:"removeListener",value:function(e,t,n){this.emitter_.removeListener(e,t,n)}},{key:"once",value:function(e,t){this.emitter_.once(e,t)}}]),e}();window.addEventListener("message",function(e){e.origin==window.location.origin&&function(e){if("PermissionDeniedError"==e){if(Gd)return Gd("PermissionDeniedError");throw new 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n=this.prevReport_;if(this.prevReport_=JSON.parse(JSON.stringify(t)),Bd(n))t.AudioReportState.uint32_audio_enc_pkg_br=8*t.AudioReportState.uint32_audio_enc_pkg_br/2,t.VideoReportState.uint32_video_rcv_br=8*t.VideoReportState.uint32_video_rcv_br/2,t.VideoReportState.uint32_video_snd_br=8*t.VideoReportState.uint32_video_snd_br/2,t.VideoReportState.VideoDecState.forEach(function(e){e.uint32_video_recv_br=8*e.uint32_video_recv_br/2,t.uint32_total_send_bps=t.AudioReportState.uint32_audio_enc_pkg_br+t.VideoReportState.uint32_video_snd_br});else{t.uint64_begine_utime=n.uint64_end_utime,t.uint32_real_num-=n.uint32_real_num,t.uint32_real_num<=0&&(t.uint32_real_num=0),t.AudioReportState.uint32_audio_real_recv_pkg-=n.AudioReportState.uint32_audio_real_recv_pkg,t.AudioReportState.uint32_audio_real_recv_pkg<=0&&(t.AudioReportState.uint32_audio_real_recv_pkg=0),t.AudioReportState.uint32_audio_enc_pkg_br-=n.AudioReportState.uint32_audio_enc_pkg_br,t.AudioReportState.uint32_audio_enc_pkg_br<=0&&(t.AudioReportState.uint32_audio_enc_pkg_br=0),t.AudioReportState.uint32_audio_enc_pkg_br=8*t.AudioReportState.uint32_audio_enc_pkg_br/2,t.VideoReportState.uint32_video_snd_br-=n.VideoReportState.uint32_video_snd_br,t.VideoReportState.uint32_video_snd_br<=0&&(t.VideoReportState.uint32_video_snd_br=0),t.VideoReportState.uint32_video_snd_br=8*t.VideoReportState.uint32_video_snd_br/2,t.AudioReportState.uint32_audio_flow-=n.AudioReportState.uint32_audio_flow,t.AudioReportState.uint32_audio_flow<=0&&(t.AudioReportState.uint32_audio_flow=0),t.VideoReportState.uint32_send_total_pkg-=n.VideoReportState.uint32_send_total_pkg,t.VideoReportState.uint32_send_total_pkg<=0&&(t.VideoReportState.uint32_send_total_pkg=0),t.VideoReportState.uint32_video_rcv_br-=n.VideoReportState.uint32_video_rcv_br,t.VideoReportState.uint32_video_rcv_br<=0&&(t.VideoReportState.uint32_video_rcv_br=0),t.VideoReportState.uint32_video_rcv_br=8*t.VideoReportState.uint32_video_rcv_br/2,t.VideoReportState.uint32_video_total_real_recv_pkg-=n.VideoReportState.uint32_video_total_real_recv_pkg,t.VideoReportState.uint32_video_total_real_recv_pkg<=0&&(t.VideoReportState.uint32_video_total_real_recv_pkg=0),t.VideoReportState.VideoEncState[0].uint32_enc_fps-=n.VideoReportState.VideoEncState[0].uint32_enc_fps,t.VideoReportState.VideoEncState[0].uint32_enc_fps<0&&(t.VideoReportState.VideoEncState[0].uint32_enc_fps=0),t.VideoReportState.VideoEncState[0].uint32_enc_fps=t.VideoReportState.VideoEncState[0].uint32_enc_fps/2;for(var 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t=e.data.content;this.acceptAnswer(t)}}},{key:"onUpdateRemoteSdp",value:function(e){var t=e.data.content;if(this.hitTest(t.srctinyid)){this.log_.info("is updating remote sdp offer");var n=t.newSdp;this.updateRemoteDescription(n)}}},{key:"onUpdateAudioSSRC",value:function(e){var t=e.data.content;if(this.hitTest(t.srctinyid)){this.log_.info("is updating audio ssrc");var n=t.newSdp;this.updateRemoteDescription(n)}}},{key:"onUpdateVideoSSRC",value:function(e){var t=e.data.content;if(this.hitTest(t.srctinyid)){this.log_.info("is updating video ssrc");var n=t.newSdp;this.updateRemoteDescription(n)}}},{key:"onTrack",value:function(e){var t=e.streams[0],n=e.track;if(this.log_.info("ontrack() kind: ".concat(n.kind," id: ").concat(n.id," streamId: ").concat(t.id)),"unified-plan"===this.sdpSemantics_){var r=function(e){var t=wf.parse(e),n={audio:[],video:[]};return t.media.forEach(function(e){if(e.ssrcs){var t=e.ssrcs[0].id>>16&255;if("audio"===e.type)n.audio.push(Tp);else if("video"==e.type){var r=t===Ep?Tp:Cp;n.video.push(r)}}}),n}(this.peerConnection_.remoteDescription.sdp);if("audio"===n.kind){if(0===r.audio.length||t.id!==Tp)return void this.log_.debug("skip this invalid audio track")}else if(-1===r.video.indexOf(t.id))return void this.log_.debug("skip this invalid video track: ".concat(n.id," msid: ").concat(t.id))}fl({eventType:"ontrack",kind:n.kind});var i=!1,o=this.remoteStreams_.get(t.id);if(void 0===o){var a=t.id===Tp?"main":"auxiliary";(o=new mf({type:a,userId:this.userId_,client:this.client_})).setConnection(this),this.remoteStreams_.set(t.id,o),i=!0}o.setMediaStream(t),"audio"===n.kind?(o.hasAudio()&&o.isPlaying()&&(this.log_.debug("already has an audio track, restart audio player with the new track"),o.restartAudio()),o.setHasAudio(!0)):(this.setVideoStats("start"),o.hasVideo()&&o.isPlaying()&&(this.log_.debug("already has an video track, restart video player with the new 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ul({message:n,code:sl.ICE_TRANSPORT_ERROR})))}if("connected"===e.target.connectionState||"completed"===e.target.connectionState){if(fl({eventType:"iceConnectionState",result:"success"}),this.addTransportEvent("connected"),this.emitter_.emit(Vp,{state:"connected"}),!this.sentSubscriptionAfterConnected_&&this.pendingSubscription_.length>0){this.log_.info("send pending subscription after RTCPeerConnection is connected");var r=this.pendingSubscription_[0];this.doSendSubscription(r.data,r.stream),this.sentSubscriptionAfterConnected_=!0}}else"disconnected"===e.target.connectionState&&(this.emitter_.emit(Vp,{state:"disconnected"}),this.addTransportEvent("disconnected"))}},{key:"hitTest",value:function(e){return(0===e||"0"===e)&&this.isUplink_||e===this.tinyId_}},{key:"updateRemoteDescription",value:function(e){var t=this;this.log_.debug("updateRemoteDescription() ".concat(e.sdp));var n=this.peerConnection_.remoteDescription.sdp;this.peerConnection_.setRemoteDescription(e).then(function(){if(fl({eventType:"setRemoteDescription",kind:"offer",result:"success"}),t.log_.info("updateRemoteDescription success"),"unified-plan"===t.sdpSemantics_){var r=function(e,t){var n=wf.parse(e).media,r=wf.parse(t).media;return{added:r.filter(function(e){var t=n.find(function(t){return t.mid===e.mid});return(void 0===t||void 0===t.ssrcs)&&e.ssrcs}),removed:n.filter(function(e){var t=r.find(function(t){return t.mid===e.mid});return(void 0===t||void 0===t.ssrcs)&&e.ssrcs})}}(n,e.sdp);t.addRemoteTrack(r.added),t.removeRemoteTrack(r.removed)}else t.removeRemoteTrackLegacy(n,e.sdp);var i=t.pendingStreams_.shift();i&&(t.log_.debug("mark ".concat(i.getType()," stream exit subscription cycle")),i.setInSubscriptionCycle(!1))}).catch(function(e){fl({eventType:"setRemoteDescription",kind:"offer",result:"failed",code:e instanceof ul?e.getExtraCode()||e.getCode():sl.UNKNOWN}),t.log_.error("updateRemoteDescription failed ".concat(e))})}},{key:"addRemoteTrack",value:function(e){var t=this;e.forEach(function(e){var n=e.mid,r=Tf(e.ssrcs[0].id)===Ip?Cp:Tp,i=t.peerConnection_.getReceivers()[n];if(i&&i.track){t.log_.info("add ".concat(i.track.kind," track ").concat(i.track.id));var o=t.remoteStreams_.get(r);if(o)o.getMediaStream().addTrack(i.track),"audio"===i.track.kind?o.setHasAudio(!0):(o.setHasVideo(!0),t.setVideoStats("start")),t.emitter_.emit(Lp,{stream:o});else{t.log_.debug("remoteStream for msid:".concat(r," not exist"));var a=new MediaStream;a.addTrack(i.track),(o=new mf({type:r===Tp?"main":"auxiliary",userId:t.userId_,client:t.client_})).setMediaStream(a),o.setConnection(t),t.remoteStreams_.set(r,o),"audio"===i.track.kind?o.setHasAudio(!0):o.setHasVideo(!0),t.emitter_.emit("stream-added",{stream:o})}}})}},{key:"removeRemoteTrack",value:function(e){var t=this;e.forEach(function(e){var 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n={srctinyid:0,userid:this.userId_,flag:this.mutedState_};this.log_.info("set ".concat(e," muted state: [").concat(t?"mute":"unmute","]")),this.signalChannel_.send(nl,n)}}},{key:"onSubscription",value:function(e){var t=e.data.content,n=t.srctinyid;if(this.hitTest(n)){var r=0===t.errCode,i=this.pendingSubscription_.shift();if(void 0!==i){this.subscriptionRetryCount_=0,this.isSubscriptionPending_=!1,-1!==this.subscriptionTimeout_&&(clearTimeout(this.subscriptionTimeout_),this.subscriptionTimeout_=-1);var o=i.stream;this.log_.info("".concat(o.getType()," stream ").concat(i.type," result: ").concat(r?"success":"failure"," errCode: ").concat(t.errCode)),i.callback(r),fl({eventType:i.type,result:0===t.errCode?"success":"failed"}),r&&"subscribe"===i.type&&this.emitter_.emit(jp,{stream:o})}if(this.pendingSubscription_.length>0){var a=this.pendingSubscription_[0];this.log_.info("schedule a pending 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n=this.client_.getUserId(),r={eventId:e,eventDesc:t,timestamp:To(),userId:n,tinyId:this.client_.getTinyId()};this.isUplink_||(r.remoteUserId=this.userId_,r.remoteTinyId=this.tinyId_),Wl(n,r)}},{key:"addTransportEvent",value:function(e){"connected"===e?this.addEventInternal(Vl,"ice transport is connected"):this.addEventInternal(Ul,"ice transport is disconnected")}},{key:"sendSubscription",value:function(e,t,n){var r={srctinyid:this.tinyId_,userid:this.userId_,audio:this.subscribeState_.audio,bigVideo:this.subscribeState_.video,auxVideo:this.subscribeState_.auxiliary};this.pendingSubscription_.length>0?this.log_.debug("queue the subscription for later handling"):this.doSendSubscription(r,e),this.pendingSubscription_.push({stream:e,type:t,data:r,callback:n}),e.setInSubscriptionCycle(!0)}},{key:"doSendSubscription",value:function(e,t){var n=this;"connected"===this.peerConnection_.connectionState||"completed"===this.peerConnection_.connectionState?(t&&this.pendingStreams_.push(t),this.log_.debug("doSendSubscription() send SUBSCRIBE command with data: ".concat(JSON.stringify(e))),this.signalChannel_.send(rl,e),this.isSubscriptionPending_=!0,this.subscriptionTimeout_=setTimeout(function(){if(n.isSubscriptionPending_)if(n.log_.debug("subscription timeout"),n.subscriptionRetryCount_+=1,n.subscriptionRetryCount_<=3){n.log_.debug("resend subscription");var e=n.pendingSubscription_[0].data;n.doSendSubscription(e)}else n.log_.error("remote server not response to subscription"),n.pendingSubscription_.shift(),n.pendingStreams_.shift(),n.isSubscriptionPending_=!1,n.subscriptionRetryCount_=0,n.emitter_.emit(Up,new ul({code:sl.SUBSCRIPTION_TIMEOUT,message:"remote server not response to subscription"}))},5e3)):this.log_.debug("try to send subscription when connectionState 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r=n.expectAudPkg+n.expectVidPkg,i=n.recvAudPkg+n.recvVidPkg,o=r-i;if(0===r&&0===i)return;this.uplinkLoss_=o<=0?0:Math.round(o/r*100),this.uplinkRTT_=n.rtt,this.uplinkNetworkQuality=this.getNetworkQuality(this.uplinkLoss_,this.uplinkRTT_)}}},{key:"handleDownlinkNetworkQuality",value:(n=ft(regeneratorRuntime.mark(function e(){var t,n,r,i,o,a,s,c,u,d,l,p,f,h,m=this;return regeneratorRuntime.wrap(function(e){for(;;)switch(e.prev=e.next){case 0:if(this.connnections_&&0!==this.connnections_.size){e.next=3;break}return this.downlinkNetworkQuality=Pp,e.abrupt("return");case 3:if((t=Et(this.connnections_.values()).map(function(e){return e.getPeerConnection()}).filter(function(e){return!!e})).filter(this.isPeerConnectionDisconnected).length!==t.length){e.next=8;break}return this.downlinkNetworkQuality=6,e.abrupt("return");case 8:n=t.filter(function(e){return"connected"===e.connectionState}),r=0;case 10:if(!(r<n.length)){e.next=30;break}return e.next=13,this.getStat(n[r]);case 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