awrtc_browser/build/bundle/awrtc.min.js

Compatible browser implementation to the Unity asset WebRTC Video Chat. Try examples in build folder

!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.awrtc=t():e.awrtc=t()}(window,(function(){return function(e){var t={};function n(r){if(t[r])return t[r].exports;var i=t[r]={i:r,l:!1,exports:{}};return e[r].call(i.exports,i,i.exports,n),i.l=!0,i.exports}return n.m=e,n.c=t,n.d=function(e,t,r){n.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:r})},n.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},n.t=function(e,t){if(1&t&&(e=n(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var r=Object.create(null);if(n.r(r),Object.defineProperty(r,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var i in e)n.d(r,i,function(t){return e[t]}.bind(null,i));return r},n.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return n.d(t,"a",t),t},n.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},n.p="",n(n.s=15)}([function(e,t,n){"use strict";var r=!0,i=!0;function o(e,t,n){var r=e.match(t);return r&&r.length>=n&&parseInt(r[n],10)}e.exports={extractVersion:o,wrapPeerConnectionEvent:function(e,t,n){if(e.RTCPeerConnection){var r=e.RTCPeerConnection.prototype,i=r.addEventListener;r.addEventListener=function(e,r){if(e!==t)return i.apply(this,arguments);var o=function(e){var t=n(e);t&&r(t)};return this._eventMap=this._eventMap||{},this._eventMap[r]=o,i.apply(this,[e,o])};var o=r.removeEventListener;r.removeEventListener=function(e,n){if(e!==t||!this._eventMap||!this._eventMap[n])return o.apply(this,arguments);var r=this._eventMap[n];return delete this._eventMap[n],o.apply(this,[e,r])},Object.defineProperty(r,"on"+t,{get:function(){return this["_on"+t]},set:function(e){this["_on"+t]&&(this.removeEventListener(t,this["_on"+t]),delete this["_on"+t]),e&&this.addEventListener(t,this["_on"+t]=e)},enumerable:!0,configurable:!0})}},disableLog:function(e){return"boolean"!=typeof e?new Error("Argument type: "+typeof e+". Please use a boolean."):(r=e,e?"adapter.js logging disabled":"adapter.js logging enabled")},disableWarnings:function(e){return"boolean"!=typeof e?new Error("Argument type: "+typeof e+". Please use a boolean."):(i=!e,"adapter.js deprecation warnings "+(e?"disabled":"enabled"))},log:function(){if("object"==typeof window){if(r)return;"undefined"!=typeof console&&"function"==typeof console.log&&console.log.apply(console,arguments)}},deprecated:function(e,t){i&&console.warn(e+" is deprecated, please use "+t+" instead.")},detectBrowser:function(e){var t=e&&e.navigator,n={browser:null,version:null};if(void 0===e||!e.navigator)return n.browser="Not a browser.",n;if(t.mozGetUserMedia)n.browser="firefox",n.version=o(t.userAgent,/Firefox\/(\d+)\./,1);else if(t.webkitGetUserMedia)n.browser="chrome",n.version=o(t.userAgent,/Chrom(e|ium)\/(\d+)\./,2);else if(t.mediaDevices&&t.userAgent.match(/Edge\/(\d+).(\d+)$/))n.browser="edge",n.version=o(t.userAgent,/Edge\/(\d+).(\d+)$/,2);else{if(!e.RTCPeerConnection||!t.userAgent.match(/AppleWebKit\/(\d+)\./))return n.browser="Not a supported browser.",n;n.browser="safari",n.version=o(t.userAgent,/AppleWebKit\/(\d+)\./,1)}return n}}},function(e,t,n){"use strict";var r={generateIdentifier:function(){return Math.random().toString(36).substr(2,10)}};r.localCName=r.generateIdentifier(),r.splitLines=function(e){return e.trim().split("\n").map((function(e){return e.trim()}))},r.splitSections=function(e){return e.split("\nm=").map((function(e,t){return(t>0?"m="+e:e).trim()+"\r\n"}))},r.getDescription=function(e){var t=r.splitSections(e);return t&&t[0]},r.getMediaSections=function(e){var t=r.splitSections(e);return t.shift(),t},r.matchPrefix=function(e,t){return r.splitLines(e).filter((function(e){return 0===e.indexOf(t)}))},r.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},r.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(" ")},r.parseIceOptions=function(e){return e.substr(14).split(" ")},r.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},r.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"},r.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]}},r.writeExtmap=function(e){return"a=extmap:"+(e.id||e.preferredId)+(e.direction&&"sendrecv"!==e.direction?"/"+e.direction:"")+" "+e.uri+"\r\n"},r.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},r.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},r.parseRtcpFb=function(e){var t=e.substr(e.indexOf(" ")+1).split(" ");return{type:t.shift(),parameter:t.join(" ")}},r.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},r.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},r.parseSsrcGroup=function(e){var t=e.substr(13).split(" ");return{semantics:t.shift(),ssrcs:t.map((function(e){return parseInt(e,10)}))}},r.getMid=function(e){var t=r.matchPrefix(e,"a=mid:")[0];if(t)return t.substr(6)},r.parseFingerprint=function(e){var t=e.substr(14).split(" ");return{algorithm:t[0].toLowerCase(),value:t[1]}},r.getDtlsParameters=function(e,t){return{role:"auto",fingerprints:r.matchPrefix(e+t,"a=fingerprint:").map(r.parseFingerprint)}},r.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},r.getIceParameters=function(e,t){var n=r.splitLines(e);return{usernameFragment:(n=n.concat(r.splitLines(t))).filter((function(e){return 0===e.indexOf("a=ice-ufrag:")}))[0].substr(12),password:n.filter((function(e){return 0===e.indexOf("a=ice-pwd:")}))[0].substr(10)}},r.writeIceParameters=function(e){return"a=ice-ufrag:"+e.usernameFragment+"\r\na=ice-pwd:"+e.password+"\r\n"},r.parseRtpParameters=function(e){for(var t={codecs:[],headerExtensions:[],fecMechanisms:[],rtcp:[]},n=r.splitLines(e)[0].split(" "),i=3;i<n.length;i++){var o=n[i],a=r.matchPrefix(e,"a=rtpmap:"+o+" ")[0];if(a){var s=r.parseRtpMap(a),c=r.matchPrefix(e,"a=fmtp:"+o+" ");switch(s.parameters=c.length?r.parseFmtp(c[0]):{},s.rtcpFeedback=r.matchPrefix(e,"a=rtcp-fb:"+o+" ").map(r.parseRtcpFb),t.codecs.push(s),s.name.toUpperCase()){case"RED":case"ULPFEC":t.fecMechanisms.push(s.name.toUpperCase())}}}return r.matchPrefix(e,"a=extmap:").forEach((function(e){t.headerExtensions.push(r.parseExtmap(e))})),t},r.writeRtpDescription=function(e,t){var n="";n+="m="+e+" ",n+=t.codecs.length>0?"9":"0",n+=" UDP/TLS/RTP/SAVPF ",n+=t.codecs.map((function(e){return void 0!==e.preferredPayloadType?e.preferredPayloadType:e.payloadType})).join(" ")+"\r\n",n+="c=IN IP4 0.0.0.0\r\n",n+="a=rtcp:9 IN IP4 0.0.0.0\r\n",t.codecs.forEach((function(e){n+=r.writeRtpMap(e),n+=r.writeFmtp(e),n+=r.writeRtcpFb(e)}));var i=0;return t.codecs.forEach((function(e){e.maxptime>i&&(i=e.maxptime)})),i>0&&(n+="a=maxptime:"+i+"\r\n"),n+="a=rtcp-mux\r\n",t.headerExtensions&&t.headerExtensions.forEach((function(e){n+=r.writeExtmap(e)})),n},r.parseRtpEncodingParameters=function(e){var t,n=[],i=r.parseRtpParameters(e),o=-1!==i.fecMechanisms.indexOf("RED"),a=-1!==i.fecMechanisms.indexOf("ULPFEC"),s=r.matchPrefix(e,"a=ssrc:").map((function(e){return r.parseSsrcMedia(e)})).filter((function(e){return"cname"===e.attribute})),c=s.length>0&&s[0].ssrc,d=r.matchPrefix(e,"a=ssrc-group:FID").map((function(e){return e.substr(17).split(" ").map((function(e){return parseInt(e,10)}))}));d.length>0&&d[0].length>1&&d[0][0]===c&&(t=d[0][1]),i.codecs.forEach((function(e){if("RTX"===e.name.toUpperCase()&&e.parameters.apt){var r={ssrc:c,codecPayloadType:parseInt(e.parameters.apt,10)};c&&t&&(r.rtx={ssrc:t}),n.push(r),o&&((r=JSON.parse(JSON.stringify(r))).fec={ssrc:c,mechanism:a?"red+ulpfec":"red"},n.push(r))}})),0===n.length&&c&&n.push({ssrc:c});var u=r.matchPrefix(e,"b=");return u.length&&(u=0===u[0].indexOf("b=TIAS:")?parseInt(u[0].substr(7),10):0===u[0].indexOf("b=AS:")?1e3*parseInt(u[0].substr(5),10)*.95-16e3:void 0,n.forEach((function(e){e.maxBitrate=u}))),n},r.parseRtcpParameters=function(e){var t={},n=r.matchPrefix(e,"a=ssrc:").map((function(e){return r.parseSsrcMedia(e)})).filter((function(e){return"cname"===e.attribute}))[0];n&&(t.cname=n.value,t.ssrc=n.ssrc);var i=r.matchPrefix(e,"a=rtcp-rsize");t.reducedSize=i.length>0,t.compound=0===i.length;var o=r.matchPrefix(e,"a=rtcp-mux");return t.mux=o.length>0,t},r.parseMsid=function(e){var t,n=r.matchPrefix(e,"a=msid:");if(1===n.length)return{stream:(t=n[0].substr(7).split(" "))[0],track:t[1]};var i=r.matchPrefix(e,"a=ssrc:").map((function(e){return r.parseSsrcMedia(e)})).filter((function(e){return"msid"===e.attribute}));return i.length>0?{stream:(t=i[0].value.split(" "))[0],track:t[1]}:void 0},r.generateSessionId=function(){return Math.random().toString().substr(2,21)},r.writeSessionBoilerplate=function(e,t,n){var i=void 0!==t?t:2;return"v=0\r\no="+(n||"thisisadapterortc")+" "+(e||r.generateSessionId())+" "+i+" IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\n"},r.writeMediaSection=function(e,t,n,i){var o=r.writeRtpDescription(e.kind,t);if(o+=r.writeIceParameters(e.iceGatherer.getLocalParameters()),o+=r.writeDtlsParameters(e.dtlsTransport.getLocalParameters(),"offer"===n?"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:"+r.localCName+"\r\n",e.rtpSender&&e.sendEncodingParameters[0].rtx&&(o+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" cname:"+r.localCName+"\r\n"),o},r.getDirection=function(e,t){for(var n=r.splitLines(e),i=0;i<n.length;i++)switch(n[i]){case"a=sendrecv":case"a=sendonly":case"a=recvonly":case"a=inactive":return n[i].substr(2)}return t?r.getDirection(t):"sendrecv"},r.getKind=function(e){return r.splitLines(e)[0].split(" ")[0].substr(2)},r.isRejected=function(e){return"0"===e.split(" ",2)[1]},r.parseMLine=function(e){var t=r.splitLines(e)[0].substr(2).split(" ");return{kind:t[0],port:parseInt(t[1],10),protocol:t[2],fmt:t.slice(3).join(" ")}},r.parseOLine=function(e){var t=r.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]}},r.isValidSDP=function(e){if("string"!=typeof e||0===e.length)return!1;for(var t=r.splitLines(e),n=0;n<t.length;n++)if(t[n].length<2||"="!==t[n].charAt(1))return!1;return!0},e.exports=r},function(e,t,n){"use strict";(function(t){var r=n(4);e.exports=r({window:t.window})}).call(this,n(3))},function(e,t){var n;n=function(){return this}();try{n=n||new Function("return this")()}catch(e){"object"==typeof window&&(n=window)}e.exports=n},function(e,t,n){"use strict";var r=n(0);e.exports=function(e,t){var i=e&&e.window,o={shimChrome:!0,shimFirefox:!0,shimEdge:!0,shimSafari:!0};for(var a in t)hasOwnProperty.call(t,a)&&(o[a]=t[a]);var s=r.log,c=r.detectBrowser(i),d=n(5)||null,u=n(7)||null,l=n(11)||null,p=n(13)||null,f=n(14)||null,m={browserDetails:c,commonShim:f,extractVersion:r.extractVersion,disableLog:r.disableLog,disableWarnings:r.disableWarnings};switch(c.browser){case"chrome":if(!d||!d.shimPeerConnection||!o.shimChrome)return s("Chrome shim is not included in this adapter release."),m;s("adapter.js shimming chrome."),m.browserShim=d,f.shimCreateObjectURL(i),d.shimGetUserMedia(i),d.shimMediaStream(i),d.shimSourceObject(i),d.shimPeerConnection(i),d.shimOnTrack(i),d.shimAddTrackRemoveTrack(i),d.shimGetSendersWithDtmf(i),d.shimSenderReceiverGetStats(i),d.fixNegotiationNeeded(i),f.shimRTCIceCandidate(i),f.shimMaxMessageSize(i),f.shimSendThrowTypeError(i);break;case"firefox":if(!l||!l.shimPeerConnection||!o.shimFirefox)return s("Firefox shim is not included in this adapter release."),m;s("adapter.js shimming firefox."),m.browserShim=l,f.shimCreateObjectURL(i),l.shimGetUserMedia(i),l.shimSourceObject(i),l.shimPeerConnection(i),l.shimOnTrack(i),l.shimRemoveStream(i),l.shimSenderGetStats(i),l.shimReceiverGetStats(i),l.shimRTCDataChannel(i),f.shimRTCIceCandidate(i),f.shimMaxMessageSize(i),f.shimSendThrowTypeError(i);break;case"edge":if(!u||!u.shimPeerConnection||!o.shimEdge)return s("MS edge shim is not included in this adapter release."),m;s("adapter.js shimming edge."),m.browserShim=u,f.shimCreateObjectURL(i),u.shimGetUserMedia(i),u.shimPeerConnection(i),u.shimReplaceTrack(i),u.shimGetDisplayMedia(i),f.shimMaxMessageSize(i),f.shimSendThrowTypeError(i);break;case"safari":if(!p||!o.shimSafari)return s("Safari shim is not included in this adapter release."),m;s("adapter.js shimming safari."),m.browserShim=p,f.shimCreateObjectURL(i),p.shimRTCIceServerUrls(i),p.shimCreateOfferLegacy(i),p.shimCallbacksAPI(i),p.shimLocalStreamsAPI(i),p.shimRemoteStreamsAPI(i),p.shimTrackEventTransceiver(i),p.shimGetUserMedia(i),f.shimRTCIceCandidate(i),f.shimMaxMessageSize(i),f.shimSendThrowTypeError(i);break;default:s("Unsupported browser!")}return m}},function(e,t,n){"use strict";var r=n(0),i=r.log;function o(e,t,n){var r=n?"outbound-rtp":"inbound-rtp",i=new Map;if(null===t)return i;var o=[];return e.forEach((function(e){"track"===e.type&&e.trackIdentifier===t.id&&o.push(e)})),o.forEach((function(t){e.forEach((function(n){n.type===r&&n.trackId===t.id&&function e(t,n,r){n&&!r.has(n.id)&&(r.set(n.id,n),Object.keys(n).forEach((function(i){i.endsWith("Id")?e(t,t.get(n[i]),r):i.endsWith("Ids")&&n[i].forEach((function(n){e(t,t.get(n),r)}))})))}(e,n,i)}))})),i}e.exports={shimGetUserMedia:n(6),shimMediaStream:function(e){e.MediaStream=e.MediaStream||e.webkitMediaStream},shimOnTrack:function(e){if("object"==typeof e&&e.RTCPeerConnection&&!("ontrack"in e.RTCPeerConnection.prototype)){Object.defineProperty(e.RTCPeerConnection.prototype,"ontrack",{get:function(){return this._ontrack},set:function(e){this._ontrack&&this.removeEventListener("track",this._ontrack),this.addEventListener("track",this._ontrack=e)},enumerable:!0,configurable:!0});var t=e.RTCPeerConnection.prototype.setRemoteDescription;e.RTCPeerConnection.prototype.setRemoteDescription=function(){var n=this;return n._ontrackpoly||(n._ontrackpoly=function(t){t.stream.addEventListener("addtrack",(function(r){var i;i=e.RTCPeerConnection.prototype.getReceivers?n.getReceivers().find((function(e){return e.track&&e.track.id===r.track.id})):{track:r.track};var o=new Event("track");o.track=r.track,o.receiver=i,o.transceiver={receiver:i},o.streams=[t.stream],n.dispatchEvent(o)})),t.stream.getTracks().forEach((function(r){var i;i=e.RTCPeerConnection.prototype.getReceivers?n.getReceivers().find((function(e){return e.track&&e.track.id===r.id})):{track:r};var o=new Event("track");o.track=r,o.receiver=i,o.transceiver={receiver:i},o.streams=[t.stream],n.dispatchEvent(o)}))},n.addEventListener("addstream",n._ontrackpoly)),t.apply(n,arguments)}}else r.wrapPeerConnectionEvent(e,"track",(function(e){return e.transceiver||Object.defineProperty(e,"transceiver",{value:{receiver:e.receiver}}),e}))},shimGetSendersWithDtmf:function(e){if("object"==typeof e&&e.RTCPeerConnection&&!("getSenders"in e.RTCPeerConnection.prototype)&&"createDTMFSender"in e.RTCPeerConnection.prototype){var t=function(e,t){return{track:t,get dtmf(){return void 0===this._dtmf&&("audio"===t.kind?this._dtmf=e.createDTMFSender(t):this._dtmf=null),this._dtmf},_pc:e}};if(!e.RTCPeerConnection.prototype.getSenders){e.RTCPeerConnection.prototype.getSenders=function(){return this._senders=this._senders||[],this._senders.slice()};var n=e.RTCPeerConnection.prototype.addTrack;e.RTCPeerConnection.prototype.addTrack=function(e,r){var i=this,o=n.apply(i,arguments);return o||(o=t(i,e),i._senders.push(o)),o};var r=e.RTCPeerConnection.prototype.removeTrack;e.RTCPeerConnection.prototype.removeTrack=function(e){var t=this;r.apply(t,arguments);var n=t._senders.indexOf(e);-1!==n&&t._senders.splice(n,1)}}var i=e.RTCPeerConnection.prototype.addStream;e.RTCPeerConnection.prototype.addStream=function(e){var n=this;n._senders=n._senders||[],i.apply(n,[e]),e.getTracks().forEach((function(e){n._senders.push(t(n,e))}))};var o=e.RTCPeerConnection.prototype.removeStream;e.RTCPeerConnection.prototype.removeStream=function(e){var t=this;t._senders=t._senders||[],o.apply(t,[e]),e.getTracks().forEach((function(e){var n=t._senders.find((function(t){return t.track===e}));n&&t._senders.splice(t._senders.indexOf(n),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(e,[]);return t.forEach((function(t){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}})}},shimSenderReceiverGetStats:function(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,n=t.apply(e,[]);return n.forEach((function(t){t._pc=e})),n});var n=e.RTCPeerConnection.prototype.addTrack;n&&(e.RTCPeerConnection.prototype.addTrack=function(){var e=n.apply(this,arguments);return e._pc=this,e}),e.RTCRtpSender.prototype.getStats=function(){var e=this;return this._pc.getStats().then((function(t){return o(t,e.track,!0)}))}}if(!("getStats"in e.RTCRtpReceiver.prototype)){var i=e.RTCPeerConnection.prototype.getReceivers;i&&(e.RTCPeerConnection.prototype.getReceivers=function(){var e=this,t=i.apply(e,[]);return t.forEach((function(t){t._pc=e})),t}),r.wrapPeerConnectionEvent(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 o(t,e.track,!1)}))}}if("getStats"in e.RTCRtpSender.prototype&&"getStats"in e.RTCRtpReceiver.prototype){var a=e.RTCPeerConnection.prototype.getStats;e.RTCPeerConnection.prototype.getStats=function(){var t=this;if(arguments.length>0&&arguments[0]instanceof e.MediaStreamTrack){var n,r,i,o=arguments[0];return t.getSenders().forEach((function(e){e.track===o&&(n?i=!0:n=e)})),t.getReceivers().forEach((function(e){return e.track===o&&(r?i=!0:r=e),e.track===o})),i||n&&r?Promise.reject(new DOMException("There are more than one sender or receiver for the track.","InvalidAccessError")):n?n.getStats():r?r.getStats():Promise.reject(new DOMException("There is no sender or receiver for the track.","InvalidAccessError"))}return a.apply(t,arguments)}}}},shimSourceObject:function(e){var t=e&&e.URL;"object"==typeof e&&e.HTMLMediaElement&&!("srcObject"in e.HTMLMediaElement.prototype)&&Object.defineProperty(e.HTMLMediaElement.prototype,"srcObject",{get:function(){return this._srcObject},set:function(e){var n=this;this._srcObject=e,this.src&&t.revokeObjectURL(this.src),e?(this.src=t.createObjectURL(e),e.addEventListener("addtrack",(function(){n.src&&t.revokeObjectURL(n.src),n.src=t.createObjectURL(e)})),e.addEventListener("removetrack",(function(){n.src&&t.revokeObjectURL(n.src),n.src=t.createObjectURL(e)}))):this.src=""}})},shimAddTrackRemoveTrackWithNative:function(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,n){if(!n)return t.apply(this,arguments);this._shimmedLocalStreams=this._shimmedLocalStreams||{};var r=t.apply(this,arguments);return this._shimmedLocalStreams[n.id]?-1===this._shimmedLocalStreams[n.id].indexOf(r)&&this._shimmedLocalStreams[n.id].push(r):this._shimmedLocalStreams[n.id]=[n,r],r};var n=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 r=t.getSenders();n.apply(this,arguments);var i=t.getSenders().filter((function(e){return-1===r.indexOf(e)}));this._shimmedLocalStreams[e.id]=[e].concat(i)};var 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)};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(n){var r=t._shimmedLocalStreams[n].indexOf(e);-1!==r&&t._shimmedLocalStreams[n].splice(r,1),1===t._shimmedLocalStreams[n].length&&delete t._shimmedLocalStreams[n]})),i.apply(this,arguments)}},shimAddTrackRemoveTrack:function(e){if(e.RTCPeerConnection){var t=r.detectBrowser(e);if(e.RTCPeerConnection.prototype.addTrack&&t.version>=65)return this.shimAddTrackRemoveTrackWithNative(e);var n=e.RTCPeerConnection.prototype.getLocalStreams;e.RTCPeerConnection.prototype.getLocalStreams=function(){var e=this,t=n.apply(this);return e._reverseStreams=e._reverseStreams||{},t.map((function(t){return e._reverseStreams[t.id]}))};var i=e.RTCPeerConnection.prototype.addStream;e.RTCPeerConnection.prototype.addStream=function(t){var n=this;if(n._streams=n._streams||{},n._reverseStreams=n._reverseStreams||{},t.getTracks().forEach((function(e){if(n.getSenders().find((function(t){return t.track===e})))throw new DOMException("Track already exists.","InvalidAccessError")})),!n._reverseStreams[t.id]){var r=new e.MediaStream(t.getTracks());n._streams[t.id]=r,n._reverseStreams[r.id]=t,t=r}i.apply(n,[t])};var o=e.RTCPeerConnection.prototype.removeStream;e.RTCPeerConnection.prototype.removeStream=function(e){var t=this;t._streams=t._streams||{},t._reverseStreams=t._reverseStreams||{},o.apply(t,[t._streams[e.id]||e]),delete t._reverseStreams[t._streams[e.id]?t._streams[e.id].id:e.id],delete t._streams[e.id]},e.RTCPeerConnection.prototype.addTrack=function(t,n){var r=this;if("closed"===r.signalingState)throw new DOMException("The RTCPeerConnection's signalingState is 'closed'.","InvalidStateError");var i=[].slice.call(arguments,1);if(1!==i.length||!i[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 o=r.getSenders().find((function(e){return e.track===t}));if(o)throw new DOMException("Track already exists.","InvalidAccessError");r._streams=r._streams||{},r._reverseStreams=r._reverseStreams||{};var a=r._streams[n.id];if(a)a.addTrack(t),Promise.resolve().then((function(){r.dispatchEvent(new Event("negotiationneeded"))}));else{var s=new e.MediaStream([t]);r._streams[n.id]=s,r._reverseStreams[s.id]=n,r.addStream(s)}return r.getSenders().find((function(e){return e.track===t}))},["createOffer","createAnswer"].forEach((function(t){var n=e.RTCPeerConnection.prototype[t];e.RTCPeerConnection.prototype[t]=function(){var e=this,t=arguments,r=arguments.length&&"function"==typeof arguments[0];return r?n.apply(e,[function(n){var r=c(e,n);t[0].apply(null,[r])},function(e){t[1]&&t[1].apply(null,e)},arguments[2]]):n.apply(e,arguments).then((function(t){return c(e,t)}))}}));var a=e.RTCPeerConnection.prototype.setLocalDescription;e.RTCPeerConnection.prototype.setLocalDescription=function(){var e=this;return arguments.length&&arguments[0].type?(arguments[0]=d(e,arguments[0]),a.apply(e,arguments)):a.apply(e,arguments)};var s=Object.getOwnPropertyDescriptor(e.RTCPeerConnection.prototype,"localDescription");Object.defineProperty(e.RTCPeerConnection.prototype,"localDescription",{get:function(){var e=s.get.apply(this);return""===e.type?e:c(this,e)}}),e.RTCPeerConnection.prototype.removeTrack=function(e){var t,n=this;if("closed"===n.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===n))throw new DOMException("Sender was not created by this connection.","InvalidAccessError");n._streams=n._streams||{},Object.keys(n._streams).forEach((function(r){n._streams[r].getTracks().find((function(t){return e.track===t}))&&(t=n._streams[r])})),t&&(1===t.getTracks().length?n.removeStream(n._reverseStreams[t.id]):t.removeTrack(e.track),n.dispatchEvent(new Event("negotiationneeded")))}}function c(e,t){var n=t.sdp;return Object.keys(e._reverseStreams||[]).forEach((function(t){var r=e._reverseStreams[t],i=e._streams[r.id];n=n.replace(new RegExp(i.id,"g"),r.id)})),new RTCSessionDescription({type:t.type,sdp:n})}function d(e,t){var n=t.sdp;return Object.keys(e._reverseStreams||[]).forEach((function(t){var r=e._reverseStreams[t],i=e._streams[r.id];n=n.replace(new RegExp(r.id,"g"),i.id)})),new RTCSessionDescription({type:t.type,sdp:n})}},shimPeerConnection:function(e){var t=r.detectBrowser(e);if(!e.RTCPeerConnection&&e.webkitRTCPeerConnection&&(e.RTCPeerConnection=function(t,n){return i("PeerConnection"),t&&t.iceTransportPolicy&&(t.iceTransports=t.iceTransportPolicy),new e.webkitRTCPeerConnection(t,n)},e.RTCPeerConnection.prototype=e.webkitRTCPeerConnection.prototype,e.webkitRTCPeerConnection.generateCertificate&&Object.defineProperty(e.RTCPeerConnection,"generateCertificate",{get:function(){return e.webkitRTCPeerConnection.generateCertificate}})),e.RTCPeerConnection){var n=e.RTCPeerConnection.prototype.getStats;e.RTCPeerConnection.prototype.getStats=function(e,t,r){var i=this,o=arguments;if(arguments.length>0&&"function"==typeof e)return n.apply(this,arguments);if(0===n.length&&(0===arguments.length||"function"!=typeof arguments[0]))return n.apply(this,[]);var a=function(e){var t={};return e.result().forEach((function(e){var n={id:e.id,timestamp:e.timestamp,type:{localcandidate:"local-candidate",remotecandidate:"remote-candidate"}[e.type]||e.type};e.names().forEach((function(t){n[t]=e.stat(t)})),t[n.id]=n})),t},s=function(e){return new Map(Object.keys(e).map((function(t){return[t,e[t]]})))};if(arguments.length>=2){var c=function(e){o[1](s(a(e)))};return n.apply(this,[c,arguments[0]])}return new Promise((function(e,t){n.apply(i,[function(t){e(s(a(t)))},t])})).then(t,r)},t.version<51&&["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach((function(t){var n=e.RTCPeerConnection.prototype[t];e.RTCPeerConnection.prototype[t]=function(){var e=arguments,t=this,r=new Promise((function(r,i){n.apply(t,[e[0],r,i])}));return e.length<2?r:r.then((function(){e[1].apply(null,[])}),(function(t){e.length>=3&&e[2].apply(null,[t])}))}})),t.version<52&&["createOffer","createAnswer"].forEach((function(t){var n=e.RTCPeerConnection.prototype[t];e.RTCPeerConnection.prototype[t]=function(){var e=this;if(arguments.length<1||1===arguments.length&&"object"==typeof arguments[0]){var t=1===arguments.length?arguments[0]:void 0;return new Promise((function(r,i){n.apply(e,[r,i,t])}))}return n.apply(this,arguments)}})),["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach((function(t){var n=e.RTCPeerConnection.prototype[t];e.RTCPeerConnection.prototype[t]=function(){return arguments[0]=new("addIceCandidate"===t?e.RTCIceCandidate:e.RTCSessionDescription)(arguments[0]),n.apply(this,arguments)}}));var o=e.RTCPeerConnection.prototype.addIceCandidate;e.RTCPeerConnection.prototype.addIceCandidate=function(){return arguments[0]?o.apply(this,arguments):(arguments[1]&&arguments[1].apply(null),Promise.resolve())}}},fixNegotiationNeeded:function(e){r.wrapPeerConnectionEvent(e,"negotiationneeded",(function(e){if("stable"===e.target.signalingState)return e}))},shimGetDisplayMedia:function(e,t){e.navigator&&e.navigator.mediaDevices&&!("getDisplayMedia"in e.navigator.mediaDevices)&&("function"==typeof t?(e.navigator.mediaDevices.getDisplayMedia=function(n){return t(n).then((function(t){var 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)}))},e.navigator.getDisplayMedia=function(t){return r.deprecated("navigator.getDisplayMedia","navigator.mediaDevices.getDisplayMedia"),e.navigator.mediaDevices.getDisplayMedia(t)}):console.error("shimGetDisplayMedia: getSourceId argument is not a function"))}}},function(e,t,n){"use strict";var r=n(0),i=r.log;e.exports=function(e){var t=r.detectBrowser(e),n=e&&e.navigator,o=function(e){if("object"!=typeof e||e.mandatory||e.optional)return e;var t={};return Object.keys(e).forEach((function(n){if("require"!==n&&"advanced"!==n&&"mediaSource"!==n){var r="object"==typeof e[n]?e[n]:{ideal:e[n]};void 0!==r.exact&&"number"==typeof r.exact&&(r.min=r.max=r.exact);var i=function(e,t){return e?e+t.charAt(0).toUpperCase()+t.slice(1):"deviceId"===t?"sourceId":t};if(void 0!==r.ideal){t.optional=t.optional||[];var o={};"number"==typeof r.ideal?(o[i("min",n)]=r.ideal,t.optional.push(o),(o={})[i("max",n)]=r.ideal,t.optional.push(o)):(o[i("",n)]=r.ideal,t.optional.push(o))}void 0!==r.exact&&"number"!=typeof r.exact?(t.mandatory=t.mandatory||{},t.mandatory[i("",n)]=r.exact):["min","max"].forEach((function(e){void 0!==r[e]&&(t.mandatory=t.mandatory||{},t.mandatory[i(e,n)]=r[e])}))}})),e.advanced&&(t.optional=(t.optional||[]).concat(e.advanced)),t},a=function(e,r){if(t.version>=61)return r(e);if((e=JSON.parse(JSON.stringify(e)))&&"object"==typeof e.audio){var a=function(e,t,n){t in e&&!(n in e)&&(e[n]=e[t],delete e[t])};a((e=JSON.parse(JSON.stringify(e))).audio,"autoGainControl","googAutoGainControl"),a(e.audio,"noiseSuppression","googNoiseSuppression"),e.audio=o(e.audio)}if(e&&"object"==typeof e.video){var s=e.video.facingMode;s=s&&("object"==typeof s?s:{ideal:s});var c,d=t.version<66;if(s&&("user"===s.exact||"environment"===s.exact||"user"===s.ideal||"environment"===s.ideal)&&(!n.mediaDevices.getSupportedConstraints||!n.mediaDevices.getSupportedConstraints().facingMode||d))if(delete e.video.facingMode,"environment"===s.exact||"environment"===s.ideal?c=["back","rear"]:"user"!==s.exact&&"user"!==s.ideal||(c=["front"]),c)return n.mediaDevices.enumerateDevices().then((function(t){var n=(t=t.filter((function(e){return"videoinput"===e.kind}))).find((function(e){return c.some((function(t){return-1!==e.label.toLowerCase().indexOf(t)}))}));return!n&&t.length&&-1!==c.indexOf("back")&&(n=t[t.length-1]),n&&(e.video.deviceId=s.exact?{exact:n.deviceId}:{ideal:n.deviceId}),e.video=o(e.video),i("chrome: "+JSON.stringify(e)),r(e)}));e.video=o(e.video)}return i("chrome: "+JSON.stringify(e)),r(e)},s=function(e){return t.version>=64?e:{name:{PermissionDeniedError:"NotAllowedError",PermissionDismissedError:"NotAllowedError",InvalidStateError:"NotAllowedError",DevicesNotFoundError:"NotFoundError",ConstraintNotSatisfiedError:"OverconstrainedError",TrackStartError:"NotReadableError",MediaDeviceFailedDueToShutdown:"NotAllowedError",MediaDeviceKillSwitchOn:"NotAllowedError",TabCaptureError:"AbortError",ScreenCaptureError:"AbortError",DeviceCaptureError:"AbortError"}[e.name]||e.name,message:e.message,constraint:e.constraint||e.constraintName,toString:function(){return this.name+(this.message&&": ")+this.message}}};n.getUserMedia=function(e,t,r){a(e,(function(e){n.webkitGetUserMedia(e,t,(function(e){r&&r(s(e))}))}))};var c=function(e){return new Promise((function(t,r){n.getUserMedia(e,t,r)}))};if(n.mediaDevices||(n.mediaDevices={getUserMedia:c,enumerateDevices:function(){return new Promise((function(t){var n={audio:"audioinput",video:"videoinput"};return e.MediaStreamTrack.getSources((function(e){t(e.map((function(e){return{label:e.label,kind:n[e.kind],deviceId:e.id,groupId:""}})))}))}))},getSupportedConstraints:function(){return{deviceId:!0,echoCancellation:!0,facingMode:!0,frameRate:!0,height:!0,width:!0}}}),n.mediaDevices.getUserMedia){var d=n.mediaDevices.getUserMedia.bind(n.mediaDevices);n.mediaDevices.getUserMedia=function(e){return a(e,(function(e){return d(e).then((function(t){if(e.audio&&!t.getAudioTracks().length||e.video&&!t.getVideoTracks().length)throw t.getTracks().forEach((function(e){e.stop()})),new DOMException("","NotFoundError");return t}),(function(e){return Promise.reject(s(e))}))}))}}else n.mediaDevices.getUserMedia=function(e){return c(e)};void 0===n.mediaDevices.addEventListener&&(n.mediaDevices.addEventListener=function(){i("Dummy mediaDevices.addEventListener called.")}),void 0===n.mediaDevices.removeEventListener&&(n.mediaDevices.removeEventListener=function(){i("Dummy mediaDevices.removeEventListener called.")})}},function(e,t,n){"use strict";var r=n(0),i=n(8),o=n(9);e.exports={shimGetUserMedia:n(10),shimPeerConnection:function(e){var t=r.detectBrowser(e);if(e.RTCIceGatherer&&(e.RTCIceCandidate||(e.RTCIceCandidate=function(e){return e}),e.RTCSessionDescription||(e.RTCSessionDescription=function(e){return e}),t.version<15025)){var n=Object.getOwnPropertyDescriptor(e.MediaStreamTrack.prototype,"enabled");Object.defineProperty(e.MediaStreamTrack.prototype,"enabled",{set:function(e){n.set.call(this,e);var t=new Event("enabled");t.enabled=e,this.dispatchEvent(t)}})}e.RTCRtpSender&&!("dtmf"in e.RTCRtpSender.prototype)&&Object.defineProperty(e.RTCRtpSender.prototype,"dtmf",{get:function(){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);var a=o(e,t.version);e.RTCPeerConnection=function(e){return e&&e.iceServers&&(e.iceServers=i(e.iceServers)),new a(e)},e.RTCPeerConnection.prototype=a.prototype},shimReplaceTrack:function(e){e.RTCRtpSender&&!("replaceTrack"in e.RTCRtpSender.prototype)&&(e.RTCRtpSender.prototype.replaceTrack=e.RTCRtpSender.prototype.setTrack)},shimGetDisplayMedia:function(e,t){if("getDisplayMedia"in e.navigator&&e.navigator.mediaDevices&&!("getDisplayMedia"in e.navigator.mediaDevices)){var n=e.navigator.getDisplayMedia;e.navigator.mediaDevices.getDisplayMedia=function(t){return n.call(e.navigator,t)},e.navigator.getDisplayMedia=function(t){return r.deprecated("navigator.getDisplayMedia","navigator.mediaDevices.getDisplayMedia"),n.call(e.navigator,t)}}}}},function(e,t,n){"use strict";var r=n(0);e.exports=function(e,t){var n=!1;return(e=JSON.parse(JSON.stringify(e))).filter((function(e){if(e&&(e.urls||e.url)){var i=e.urls||e.url;e.url&&!e.urls&&r.deprecated("RTCIceServer.url","RTCIceServer.urls");var o="string"==typeof i;return o&&(i=[i]),i=i.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=o?i[0]:i,!!i.length}}))}},function(e,t,n){"use strict";var r=n(1);function i(e,t,n,i,o){var a=r.writeRtpDescription(e.kind,t);if(a+=r.writeIceParameters(e.iceGatherer.getLocalParameters()),a+=r.writeDtlsParameters(e.dtlsTransport.getLocalParameters(),"offer"===n?"actpass":o||"active"),a+="a=mid:"+e.mid+"\r\n",e.rtpSender&&e.rtpReceiver?a+="a=sendrecv\r\n":e.rtpSender?a+="a=sendonly\r\n":e.rtpReceiver?a+="a=recvonly\r\n":a+="a=inactive\r\n",e.rtpSender){var s=e.rtpSender._initialTrackId||e.rtpSender.track.id;e.rtpSender._initialTrackId=s;var c="msid:"+(i?i.id:"-")+" "+s+"\r\n";a+="a="+c,a+="a=ssrc:"+e.sendEncodingParameters[0].ssrc+" "+c,e.sendEncodingParameters[0].rtx&&(a+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" "+c,a+="a=ssrc-group:FID "+e.sendEncodingParameters[0].ssrc+" "+e.sendEncodingParameters[0].rtx.ssrc+"\r\n")}return a+="a=ssrc:"+e.sendEncodingParameters[0].ssrc+" cname:"+r.localCName+"\r\n",e.rtpSender&&e.sendEncodingParameters[0].rtx&&(a+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" cname:"+r.localCName+"\r\n"),a}function o(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 a(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 s(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 c(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}e.exports=function(e,t){function n(t,n){n.addTrack(t),n.dispatchEvent(new e.MediaStreamTrackEvent("addtrack",{track:t}))}function d(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 u=function(n){var i=this,o=document.createDocumentFragment();if(["addEventListener","removeEventListener","dispatchEvent"].forEach((function(e){i[e]=o[e].bind(o)})),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 c("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 a=n.iceCandidatePoolSize;a>0;a--)this._iceGatherers.push(new e.RTCIceGatherer({iceServers:n.iceServers,gatherPolicy:n.iceTransportPolicy}));else n.iceCandidatePoolSize=0;this._config=n,this.transceivers=[],this._sdpSessionId=r.generateSessionId(),this._sdpSessionVersion=0,this._dtlsRole=void 0,this._isClosed=!1};Object.defineProperty(u.prototype,"localDescription",{configurable:!0,get:function(){return this._localDescription}}),Object.defineProperty(u.prototype,"remoteDescription",{configurable:!0,get:function(){return this._remoteDescription}}),u.prototype.onicecandidate=null,u.prototype.onaddstream=null,u.prototype.ontrack=null,u.prototype.onremovestream=null,u.prototype.onsignalingstatechange=null,u.prototype.oniceconnectionstatechange=null,u.prototype.onconnectionstatechange=null,u.prototype.onicegatheringstatechange=null,u.prototype.onnegotiationneeded=null,u.prototype.ondatachannel=null,u.prototype._dispatchEvent=function(e,t){this._isClosed||(this.dispatchEvent(t),"function"==typeof this["on"+e]&&this["on"+e](t))},u.prototype._emitGatheringStateChange=function(){var e=new Event("icegatheringstatechange");this._dispatchEvent("icegatheringstatechange",e)},u.prototype.getConfiguration=function(){return this._config},u.prototype.getLocalStreams=function(){return this.localStreams},u.prototype.getRemoteStreams=function(){return this.remoteStreams},u.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},u.prototype.addTrack=function(t,n){if(this._isClosed)throw c("InvalidStateError","Attempted to call addTrack on a closed peerconnection.");var r;if(this.transceivers.find((function(e){return e.track===t})))throw c("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},u.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)}))}},u.prototype.removeTrack=function(t){if(this._isClosed)throw c("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 c("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()},u.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)}))},u.prototype.getSenders=function(){return this.transceivers.filter((function(e){return!!e.rtpSender})).map((function(e){return e.rtpSender}))},u.prototype.getReceivers=function(){return this.transceivers.filter((function(e){return!!e.rtpReceiver})).map((function(e){return e.rtpReceiver}))},u.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},u.prototype._gather=function(t,n){var i=this,o=this.transceivers[n].iceGatherer;if(!o.onlocalcandidate){var a=this.transceivers[n].bufferedCandidateEvents;this.transceivers[n].bufferedCandidateEvents=null,o.removeEventListener("localcandidate",this.transceivers[n].bufferCandidates),o.onlocalcandidate=function(e){if(!(i.usingBundle&&n>0)){var a=new Event("icecandidate");a.candidate={sdpMid:t,sdpMLineIndex:n};var s=e.candidate,c=!s||0===Object.keys(s).length;if(c)"new"!==o.state&&"gathering"!==o.state||(o.state="completed");else{"new"===o.state&&(o.state="gathering"),s.component=1,s.ufrag=o.getLocalParameters().usernameFragment;var d=r.writeCandidate(s);a.candidate=Object.assign(a.candidate,r.parseCandidate(d)),a.candidate.candidate=d,a.candidate.toJSON=function(){return{candidate:a.candidate.candidate,sdpMid:a.candidate.sdpMid,sdpMLineIndex:a.candidate.sdpMLineIndex,usernameFragment:a.candidate.usernameFragment}}}var u=r.getMediaSections(i._localDescription.sdp);u[a.candidate.sdpMLineIndex]+=c?"a=end-of-candidates\r\n":"a="+a.candidate.candidate+"\r\n",i._localDescription.sdp=r.getDescription(i._localDescription.sdp)+u.join("");var l=i.transceivers.every((function(e){return e.iceGatherer&&"completed"===e.iceGatherer.state}));"gathering"!==i.iceGatheringState&&(i.iceGatheringState="gathering",i._emitGatheringStateChange()),c||i._dispatchEvent("icecandidate",a),l&&(i._dispatchEvent("icecandidate",new Event("icecandidate")),i.iceGatheringState="complete",i._emitGatheringStateChange())}},e.setTimeout((function(){a.forEach((function(e){o.onlocalcandidate(e)}))}),0)}},u.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}},u.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)},u.prototype._transceive=function(e,n,i){var a=o(e.localCapabilities,e.remoteCapabilities);n&&e.rtpSender&&(a.encodings=e.sendEncodingParameters,a.rtcp={cname:r.localCName,compound:e.rtcpParameters.compound},e.recvEncodingParameters.length&&(a.rtcp.ssrc=e.recvEncodingParameters[0].ssrc),e.rtpSender.send(a)),i&&e.rtpReceiver&&a.codecs.length>0&&("video"===e.kind&&e.recvEncodingParameters&&t<15019&&e.recvEncodingParameters.forEach((function(e){delete e.rtx})),e.recvEncodingParameters.length?a.encodings=e.recvEncodingParameters:a.encodings=[{}],a.rtcp={co