adapter-min.js

!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var t;t="undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this,t.adapter=e()}}(function(){var e,t,r;return function e(t,r,n){function i(o,s){if(!r[o]){if(!t[o]){var c="function"==typeof require&&require;if(!s&&c)return c(o,!0);if(a)return a(o,!0);var d=new Error("Cannot find module '"+o+"'");throw d.code="MODULE_NOT_FOUND",d}var p=r[o]={exports:{}};t[o][0].call(p.exports,function(e){var r=t[o][1][e];return i(r||e)},p,p.exports,e,t,r,n)}return r[o].exports}for(var a="function"==typeof require&&require,o=0;o<n.length;o++)i(n[o]);return i}({1:[function(e,t,r){"use strict";function n(e,t,r,n,i){var a=d.writeRtpDescription(e.kind,t);if(a+=d.writeIceParameters(e.iceGatherer.getLocalParameters()),a+=d.writeDtlsParameters(e.dtlsTransport.getLocalParameters(),"offer"===r?"actpass":i||"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 o=e.rtpSender._initialTrackId||e.rtpSender.track.id;e.rtpSender._initialTrackId=o;var s="msid:"+(n?n.id:"-")+" "+o+"\r\n";a+="a="+s,a+="a=ssrc:"+e.sendEncodingParameters[0].ssrc+" "+s,e.sendEncodingParameters[0].rtx&&(a+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" "+s,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:"+d.localCName+"\r\n",e.rtpSender&&e.sendEncodingParameters[0].rtx&&(a+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" cname:"+d.localCName+"\r\n"),a}function i(e,t){var r=!1;return e=JSON.parse(JSON.stringify(e)),e.filter(function(e){if(e&&(e.urls||e.url)){var n=e.urls||e.url;e.url&&!e.urls&&console.warn("RTCIceServer.url is deprecated! Use urls instead.");var i="string"==typeof n;return i&&(n=[n]),n=n.filter(function(e){return 0!==e.indexOf("turn:")||-1===e.indexOf("transport=udp")||-1!==e.indexOf("turn:[")||r?0===e.indexOf("stun:")&&t>=14393&&-1===e.indexOf("?transport=udp"):(r=!0,!0)}),delete e.url,e.urls=i?n[0]:n,!!n.length}})}function a(e,t){var r={codecs:[],headerExtensions:[],fecMechanisms:[]},n=function(e,t){e=parseInt(e,10);for(var r=0;r<t.length;r++)if(t[r].payloadType===e||t[r].preferredPayloadType===e)return t[r]},i=function(e,t,r,i){var a=n(e.parameters.apt,r),o=n(t.parameters.apt,i);return a&&o&&a.name.toLowerCase()===o.name.toLowerCase()};return e.codecs.forEach(function(n){for(var a=0;a<t.codecs.length;a++){var o=t.codecs[a];if(n.name.toLowerCase()===o.name.toLowerCase()&&n.clockRate===o.clockRate){if("rtx"===n.name.toLowerCase()&&n.parameters&&o.parameters.apt&&!i(n,o,e.codecs,t.codecs))continue;o=JSON.parse(JSON.stringify(o)),o.numChannels=Math.min(n.numChannels,o.numChannels),r.codecs.push(o),o.rtcpFeedback=o.rtcpFeedback.filter(function(e){for(var t=0;t<n.rtcpFeedback.length;t++)if(n.rtcpFeedback[t].type===e.type&&n.rtcpFeedback[t].parameter===e.parameter)return!0;return!1});break}}}),e.headerExtensions.forEach(function(e){for(var n=0;n<t.headerExtensions.length;n++){var i=t.headerExtensions[n];if(e.uri===i.uri){r.headerExtensions.push(i);break}}}),r}function o(e,t,r){return-1!=={offer:{setLocalDescription:["stable","have-local-offer"],setRemoteDescription:["stable","have-remote-offer"]},answer:{setLocalDescription:["have-remote-offer","have-local-pranswer"],setRemoteDescription:["have-local-offer","have-remote-pranswer"]}}[t][e].indexOf(r)}function s(e,t){var r=e.getRemoteCandidates().find(function(e){return t.foundation===e.foundation&&t.ip===e.ip&&t.port===e.port&&t.priority===e.priority&&t.protocol===e.protocol&&t.type===e.type});return r||e.addRemoteCandidate(t),!r}function c(e,t){var r=new Error(t);return r.name=e,r.code={NotSupportedError:9,InvalidStateError:11,InvalidAccessError:15,TypeError:void 0,OperationError:void 0}[e],r}var d=e("sdp");t.exports=function(e,t){function r(t,r){r.addTrack(t),r.dispatchEvent(new e.MediaStreamTrackEvent("addtrack",{track:t}))}function p(t,r){r.removeTrack(t),r.dispatchEvent(new e.MediaStreamTrackEvent("removetrack",{track:t}))}function u(t,r,n,i){var a=new Event("track");a.track=r,a.receiver=n,a.transceiver={receiver:n},a.streams=i,e.setTimeout(function(){t._dispatchEvent("track",a)})}var f=function(r){var n=this,a=document.createDocumentFragment();if(["addEventListener","removeEventListener","dispatchEvent"].forEach(function(e){n[e]=a[e].bind(a)}),this.canTrickleIceCandidates=null,this.needNegotiation=!1,this.localStreams=[],this.remoteStreams=[],this.localDescription=null,this.remoteDescription=null,this.signalingState="stable",this.iceConnectionState="new",this.connectionState="new",this.iceGatheringState="new",r=JSON.parse(JSON.stringify(r||{})),this.usingBundle="max-bundle"===r.bundlePolicy,"negotiate"===r.rtcpMuxPolicy)throw c("NotSupportedError","rtcpMuxPolicy 'negotiate' is not supported");switch(r.rtcpMuxPolicy||(r.rtcpMuxPolicy="require"),r.iceTransportPolicy){case"all":case"relay":break;default:r.iceTransportPolicy="all";break}switch(r.bundlePolicy){case"balanced":case"max-compat":case"max-bundle":break;default:r.bundlePolicy="balanced";break}if(r.iceServers=i(r.iceServers||[],t),this._iceGatherers=[],r.iceCandidatePoolSize)for(var o=r.iceCandidatePoolSize;o>0;o--)this._iceGatherers.push(new e.RTCIceGatherer({iceServers:r.iceServers,gatherPolicy:r.iceTransportPolicy}));else r.iceCandidatePoolSize=0;this._config=r,this.transceivers=[],this._sdpSessionId=d.generateSessionId(),this._sdpSessionVersion=0,this._dtlsRole=void 0,this._isClosed=!1};f.prototype.onicecandidate=null,f.prototype.onaddstream=null,f.prototype.ontrack=null,f.prototype.onremovestream=null,f.prototype.onsignalingstatechange=null,f.prototype.oniceconnectionstatechange=null,f.prototype.onconnectionstatechange=null,f.prototype.onicegatheringstatechange=null,f.prototype.onnegotiationneeded=null,f.prototype.ondatachannel=null,f.prototype._dispatchEvent=function(e,t){this._isClosed||(this.dispatchEvent(t),"function"==typeof this["on"+e]&&this["on"+e](t))},f.prototype._emitGatheringStateChange=function(){var e=new Event("icegatheringstatechange");this._dispatchEvent("icegatheringstatechange",e)},f.prototype.getConfiguration=function(){return this._config},f.prototype.getLocalStreams=function(){return this.localStreams},f.prototype.getRemoteStreams=function(){return this.remoteStreams},f.prototype._createTransceiver=function(e,t){var r=this.transceivers.length>0,n={track:null,iceGatherer:null,iceTransport:null,dtlsTransport:null,localCapabilities:null,remoteCapabilities:null,rtpSender:null,rtpReceiver:null,kind:e,mid:null,sendEncodingParameters:null,recvEncodingParameters:null,stream:null,associatedRemoteMediaStreams:[],wantReceive:!0};if(this.usingBundle&&r)n.iceTransport=this.transceivers[0].iceTransport,n.dtlsTransport=this.transceivers[0].dtlsTransport;else{var i=this._createIceAndDtlsTransports();n.iceTransport=i.iceTransport,n.dtlsTransport=i.dtlsTransport}return t||this.transceivers.push(n),n},f.prototype.addTrack=function(t,r){if(this._isClosed)throw c("InvalidStateError","Attempted to call addTrack on a closed peerconnection.");if(this.transceivers.find(function(e){return e.track===t}))throw c("InvalidAccessError","Track already exists.");for(var n,i=0;i<this.transceivers.length;i++)this.transceivers[i].track||this.transceivers[i].kind!==t.kind||(n=this.transceivers[i]);return n||(n=this._createTransceiver(t.kind)),this._maybeFireNegotiationNeeded(),-1===this.localStreams.indexOf(r)&&this.localStreams.push(r),n.track=t,n.stream=r,n.rtpSender=new e.RTCRtpSender(t,n.dtlsTransport),n.rtpSender},f.prototype.addStream=function(e){var r=this;if(t>=15025)e.getTracks().forEach(function(t){r.addTrack(t,e)});else{var n=e.clone();e.getTracks().forEach(function(e,t){var r=n.getTracks()[t];e.addEventListener("enabled",function(e){r.enabled=e.enabled})}),n.getTracks().forEach(function(e){r.addTrack(e,n)})}},f.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 r=this.transceivers.find(function(e){return e.rtpSender===t});if(!r)throw c("InvalidAccessError","Sender was not created by this connection.");var n=r.stream;r.rtpSender.stop(),r.rtpSender=null,r.track=null,r.stream=null,-1===this.transceivers.map(function(e){return e.stream}).indexOf(n)&&this.localStreams.indexOf(n)>-1&&this.localStreams.splice(this.localStreams.indexOf(n),1),this._maybeFireNegotiationNeeded()},f.prototype.removeStream=function(e){var t=this;e.getTracks().forEach(function(e){var r=t.getSenders().find(function(t){return t.track===e});r&&t.removeTrack(r)})},f.prototype.getSenders=function(){return this.transceivers.filter(function(e){return!!e.rtpSender}).map(function(e){return e.rtpSender})},f.prototype.getReceivers=function(){return this.transceivers.filter(function(e){return!!e.rtpReceiver}).map(function(e){return e.rtpReceiver})},f.prototype._createIceGatherer=function(t,r){var n=this;if(r&&t>0)return this.transceivers[0].iceGatherer;if(this._iceGatherers.length)return this._iceGatherers.shift();var i=new e.RTCIceGatherer({iceServers:this._config.iceServers,gatherPolicy:this._config.iceTransportPolicy});return Object.defineProperty(i,"state",{value:"new",writable:!0}),this.transceivers[t].bufferedCandidateEvents=[],this.transceivers[t].bufferCandidates=function(e){var r=!e.candidate||0===Object.keys(e.candidate).length;i.state=r?"completed":"gathering",null!==n.transceivers[t].bufferedCandidateEvents&&n.transceivers[t].bufferedCandidateEvents.push(e)},i.addEventListener("localcandidate",this.transceivers[t].bufferCandidates),i},f.prototype._gather=function(t,r){var n=this,i=this.transceivers[r].iceGatherer;if(!i.onlocalcandidate){var a=this.transceivers[r].bufferedCandidateEvents;this.transceivers[r].bufferedCandidateEvents=null,i.removeEventListener("localcandidate",this.transceivers[r].bufferCandidates),i.onlocalcandidate=function(e){if(!(n.usingBundle&&r>0)){var a=new Event("icecandidate");a.candidate={sdpMid:t,sdpMLineIndex:r};var o=e.candidate,s=!o||0===Object.keys(o).length;if(s)"new"!==i.state&&"gathering"!==i.state||(i.state="completed");else{"new"===i.state&&(i.state="gathering"),o.component=1,o.ufrag=i.getLocalParameters().usernameFragment;var c=d.writeCandidate(o);a.candidate=Object.assign(a.candidate,d.parseCandidate(c)),a.candidate.candidate=c,a.candidate.toJSON=function(){return{candidate:a.candidate.candidate,sdpMid:a.candidate.sdpMid,sdpMLineIndex:a.candidate.sdpMLineIndex,usernameFragment:a.candidate.usernameFragment}}}var p=d.getMediaSections(n.localDescription.sdp);p[a.candidate.sdpMLineIndex]+=s?"a=end-of-candidates\r\n":"a="+a.candidate.candidate+"\r\n",n.localDescription.sdp=d.getDescription(n.localDescription.sdp)+p.join("");var u=n.transceivers.every(function(e){return e.iceGatherer&&"completed"===e.iceGatherer.state});"gathering"!==n.iceGatheringState&&(n.iceGatheringState="gathering",n._emitGatheringStateChange()),s||n._dispatchEvent("icecandidate",a),u&&(n._dispatchEvent("icecandidate",new Event("icecandidate")),n.iceGatheringState="complete",n._emitGatheringStateChange())}},e.setTimeout(function(){a.forEach(function(e){i.onlocalcandidate(e)})},0)}},f.prototype._createIceAndDtlsTransports=function(){var t=this,r=new e.RTCIceTransport(null);r.onicestatechange=function(){t._updateIceConnectionState(),t._updateConnectionState()};var n=new e.RTCDtlsTransport(r);return n.ondtlsstatechange=function(){t._updateConnectionState()},n.onerror=function(){Object.defineProperty(n,"state",{value:"failed",writable:!0}),t._updateConnectionState()},{iceTransport:r,dtlsTransport:n}},f.prototype._disposeIceAndDtlsTransports=function(e){var t=this.transceivers[e].iceGatherer;t&&(delete t.onlocalcandidate,delete this.transceivers[e].iceGatherer);var r=this.transceivers[e].iceTransport;r&&(delete r.onicestatechange,delete this.transceivers[e].iceTransport);var n=this.transceivers[e].dtlsTransport;n&&(delete n.ondtlsstatechange,delete n.onerror,delete this.transceivers[e].dtlsTransport)},f.prototype._transceive=function(e,r,n){var i=a(e.localCapabilities,e.remoteCapabilities);r&&e.rtpSender&&(i.encodings=e.sendEncodingParameters,i.rtcp={cname:d.localCName,compound:e.rtcpParameters.compound},e.recvEncodingParameters.length&&(i.rtcp.ssrc=e.recvEncodingParameters[0].ssrc),e.rtpSender.send(i)),n&&e.rtpReceiver&&i.codecs.length>0&&("video"===e.kind&&e.recvEncodingParameters&&t<15019&&e.recvEncodingParameters.forEach(function(e){delete e.rtx}),e.recvEncodingParameters.length?i.encodings=e.recvEncodingParameters:i.encodings=[{}],i.rtcp={compound:e.rtcpParameters.compound},e.rtcpParameters.cname&&(i.rtcp.cname=e.rtcpParameters.cname),e.sendEncodingParameters.length&&(i.rtcp.ssrc=e.sendEncodingParameters[0].ssrc),e.rtpReceiver.receive(i))},f.prototype.setLocalDescription=function(e){var t=this;if(-1===["offer","answer"].indexOf(e.type))return Promise.reject(c("TypeError",'Unsupported type "'+e.type+'"'));if(!o("setLocalDescription",e.type,t.signalingState)||t._isClosed)return Promise.reject(c("InvalidStateError","Can not set local "+e.type+" in state "+t.signalingState));var r,n;if("offer"===e.type)r=d.splitSections(e.sdp),n=r.shift(),r.forEach(function(e,r){var n=d.parseRtpParameters(e);t.transceivers[r].localCapabilities=n}),t.transceivers.forEach(function(e,r){t._gather(e.mid,r)});else if("answer"===e.type){r=d.splitSections(t.remoteDescription.sdp),n=r.shift();var i=d.matchPrefix(n,"a=ice-lite").length>0;r.forEach(function(e,r){var o=t.transceivers[r],s=o.iceGatherer,c=o.iceTransport,p=o.dtlsTransport,u=o.localCapabilities,f=o.remoteCapabilities;if(!(d.isRejected(e)&&0===d.matchPrefix(e,"a=bundle-only").length||o.rejected)){var l=d.getIceParameters(e,n),m=d.getDtlsParameters(e,n);i&&(m.role="server"),t.usingBundle&&0!==r||(t._gather(o.mid,r),"new"===c.state&&c.start(s,l,i?"controlling":"controlled"),"new"===p.state&&p.start(m));var v=a(u,f);t._transceive(o,v.codecs.length>0,!1)}})}return t.localDescription={type:e.type,sdp:e.sdp},"offer"===e.type?t._updateSignalingState("have-local-offer"):t._updateSignalingState("stable"),Promise.resolve()},f.prototype.setRemoteDescription=function(n){var i=this;if(-1===["offer","answer"].indexOf(n.type))return Promise.reject(c("TypeError",'Unsupported type "'+n.type+'"'));if(!o("setRemoteDescription",n.type,i.signalingState)||i._isClosed)return Promise.reject(c("InvalidStateError","Can not set remote "+n.type+" in state "+i.signalingState));var a={};i.remoteStreams.forEach(function(e){a[e.id]=e});var f=[],l=d.splitSections(n.sdp),m=l.shift(),v=d.matchPrefix(m,"a=ice-lite").length>0,h=d.matchPrefix(m,"a=group:BUNDLE ").length>0;i.usingBundle=h;var g=d.matchPrefix(m,"a=ice-options:")[0];return i.canTrickleIceCandidates=!!g&&g.substr(14).split(" ").indexOf("trickle")>=0,l.forEach(function(o,c){var u=d.splitLines(o),l=d.getKind(o),g=d.isRejected(o)&&0===d.matchPrefix(o,"a=bundle-only").length,y=u[0].substr(2).split(" ")[2],C=d.getDirection(o,m),T=d.parseMsid(o),S=d.getMid(o)||d.generateIdentifier();if("application"===l&&"DTLS/SCTP"===y||g)return void(i.transceivers[c]={mid:S,kind:l,rejected:!0});!g&&i.transceivers[c]&&i.transceivers[c].rejected&&(i.transceivers[c]=i._createTransceiver(l,!0));var R,P,b,E,k,w,_,x,O,M=d.parseRtpParameters(o),D,L;g||(D=d.getIceParameters(o,m),L=d.getDtlsParameters(o,m),L.role="client"),_=d.parseRtpEncodingParameters(o);var I=d.parseRtcpParameters(o),j=d.matchPrefix(o,"a=end-of-candidates",m).length>0,N=d.matchPrefix(o,"a=candidate:").map(function(e){return d.parseCandidate(e)}).filter(function(e){return 1===e.component});if(("offer"===n.type||"answer"===n.type)&&!g&&h&&c>0&&i.transceivers[c]&&(i._disposeIceAndDtlsTransports(c),i.transceivers[c].iceGatherer=i.transceivers[0].iceGatherer,i.transceivers[c].iceTransport=i.transceivers[0].iceTransport,i.transceivers[c].dtlsTransport=i.transceivers[0].dtlsTransport,i.transceivers[c].rtpSender&&i.transceivers[c].rtpSender.setTransport(i.transceivers[0].dtlsTransport),i.transceivers[c].rtpReceiver&&i.transceivers[c].rtpReceiver.setTransport(i.transceivers[0].dtlsTransport)),"offer"!==n.type||g)"answer"!==n.type||g||(R=i.transceivers[c],P=R.iceGatherer,b=R.iceTransport,E=R.dtlsTransport,k=R.rtpReceiver,w=R.sendEncodingParameters,x=R.localCapabilities,i.transceivers[c].recvEncodingParameters=_,i.transceivers[c].remoteCapabilities=M,i.transceivers[c].rtcpParameters=I,N.length&&"new"===b.state&&(!v&&!j||h&&0!==c?N.forEach(function(e){s(R.iceTransport,e)}):b.setRemoteCandidates(N)),h&&0!==c||("new"===b.state&&b.start(P,D,"controlling"),"new"===E.state&&E.start(L)),i._transceive(R,"sendrecv"===C||"recvonly"===C,"sendrecv"===C||"sendonly"===C),!k||"sendrecv"!==C&&"sendonly"!==C?delete R.rtpReceiver:(O=k.track,T?(a[T.stream]||(a[T.stream]=new e.MediaStream),r(O,a[T.stream]),f.push([O,k,a[T.stream]])):(a.default||(a.default=new e.MediaStream),r(O,a.default),f.push([O,k,a.default]))));else{R=i.transceivers[c]||i._createTransceiver(l),R.mid=S,R.iceGatherer||(R.iceGatherer=i._createIceGatherer(c,h)),N.length&&"new"===R.iceTransport.state&&(!j||h&&0!==c?N.forEach(function(e){s(R.iceTransport,e)}):R.iceTransport.setRemoteCandidates(N)),x=e.RTCRtpReceiver.getCapabilities(l),t<15019&&(x.codecs=x.codecs.filter(function(e){return"rtx"!==e.name})),w=R.sendEncodingParameters||[{ssrc:1001*(2*c+2)}];var A=!1;if("sendrecv"===C||"sendonly"===C){if(A=!R.rtpReceiver,k=R.rtpReceiver||new e.RTCRtpReceiver(R.dtlsTransport,l),A){var U;O=k.track,T&&"-"===T.stream||(T?(a[T.stream]||(a[T.stream]=new e.MediaStream,Object.defineProperty(a[T.stream],"id",{get:function(){return T.stream}})),Object.defineProperty(O,"id",{get:function(){return T.track}}),U=a[T.stream]):(a.default||(a.default=new e.MediaStream),U=a.default)),U&&(r(O,U),R.associatedRemoteMediaStreams.push(U)),f.push([O,k,U])}}else R.rtpReceiver&&R.rtpReceiver.track&&(R.associatedRemoteMediaStreams.forEach(function(e){var t=e.getTracks().find(function(e){return e.id===R.rtpReceiver.track.id});t&&p(t,e)}),R.associatedRemoteMediaStreams=[]);R.localCapabilities=x,R.remoteCapabilities=M,R.rtpReceiver=k,R.rtcpParameters=I,R.sendEncodingParameters=w,R.recvEncodingParameters=_,i._transceive(i.transceivers[c],!1,A)}}),void 0===i._dtlsRole&&(i._dtlsRole="offer"===n.type?"active":"passive"),i.remoteDescription={type:n.type,sdp:n.sdp},"offer"===n.type?i._updateSignalingState("have-remote-offer"):i._updateSignalingState("stable"),Object.keys(a).forEach(function(t){var r=a[t];if(r.getTracks().length){if(-1===i.remoteStreams.indexOf(r)){i.remoteStreams.push(r);var n=new Event("addstream");n.stream=r,e.setTimeout(function(){i._dispatchEvent("addstream",n)})}f.forEach(function(e){var t=e[0],n=e[1];r.id===e[2].id&&u(i,t,n,[r])})}}),f.forEach(function(e){e[2]||u(i,e[0],e[1],[])}),e.setTimeout(function(){i&&i.transceivers&&i.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()},f.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")},f.prototype._updateSignalingState=function(e){this.signalingState=e;var t=new Event("signalingstatechange");this._dispatchEvent("signalingstatechange",t)},f.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))},f.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){t[e.iceTransport.state]++}),e="new",t.failed>0?e="failed":t.checking>0?e="checking":t.disconnected>0?e="disconnected":t.new>0?e="new":t.connected>0?e="connected":t.completed>0&&(e="completed"),e!==this.iceConnectionState){this.iceConnectionState=e;var r=new Event("iceconnectionstatechange");this._dispatchEvent("iceconnectionstatechange",r)}},f.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){t[e.iceTransport.state]++,t[e.dtlsTransport.state]++}),t.connected+=t.completed,e="new",t.failed>0?e="failed":t.connecting>0?e="connecting":t.disconnected>0?e="disconnected":t.new>0?e="new":t.connected>0&&(e="connected"),e!==this.connectionState){this.connectionState=e;var r=new Event("connectionstatechange");this._dispatchEvent("connectionstatechange",r)}},f.prototype.createOffer=function(){var r=this;if(r._isClosed)return Promise.reject(c("InvalidStateError","Can not call createOffer after close"));var i=r.transceivers.filter(function(e){return"audio"===e.kind}).length,a=r.transceivers.filter(function(e){return"video"===e.kind}).length,o=arguments[0];if(o){if(o.mandatory||o.optional)throw new TypeError("Legacy mandatory/optional constraints not supported.");void 0!==o.offerToReceiveAudio&&(i=!0===o.offerToReceiveAudio?1:!1===o.offerToReceiveAudio?0:o.offerToReceiveAudio),void 0!==o.offerToReceiveVideo&&(a=!0===o.offerToReceiveVideo?1:!1===o.offerToReceiveVideo?0:o.offerToReceiveVideo)}for(r.transceivers.forEach(function(e){"audio"===e.kind?--i<0&&(e.wantReceive=!1):"video"===e.kind&&--a<0&&(e.wantReceive=!1)});i>0||a>0;)i>0&&(r._createTransceiver("audio"),i--),a>0&&(r._createTransceiver("video"),a--);var s=d.writeSessionBoilerplate(r._sdpSessionId,r._sdpSessionVersion++);r.transceivers.forEach(function(n,i){var a=n.track,o=n.kind,s=n.mid||d.generateIdentifier();n.mid=s,n.iceGatherer||(n.iceGatherer=r._createIceGatherer(i,r.usingBundle));var c=e.RTCRtpSender.getCapabilities(o);t<15019&&(c.codecs=c.codecs.filter(function(e){return"rtx"!==e.name})),c.codecs.forEach(function(e){"H264"===e.name&&void 0===e.parameters["level-asymmetry-allowed"]&&(e.parameters["level-asymmetry-allowed"]="1"),n.remoteCapabilities&&n.remoteCapabilities.codecs&&n.remoteCapabilities.codecs.forEach(function(t){e.name.toLowerCase()===t.name.toLowerCase()&&e.clockRate===t.clockRate&&(e.preferredPayloadType=t.payloadType)})}),c.headerExtensions.forEach(function(e){(n.remoteCapabilities&&n.remoteCapabilities.headerExtensions||[]).forEach(function(t){e.uri===t.uri&&(e.id=t.id)})});var p=n.sendEncodingParameters||[{ssrc:1001*(2*i+1)}];a&&t>=15019&&"video"===o&&!p[0].rtx&&(p[0].rtx={ssrc:p[0].ssrc+1}),n.wantReceive&&(n.rtpReceiver=new e.RTCRtpReceiver(n.dtlsTransport,o)),n.localCapabilities=c,n.sendEncodingParameters=p}),"max-compat"!==r._config.bundlePolicy&&(s+="a=group:BUNDLE "+r.transceivers.map(function(e){return e.mid}).join(" ")+"\r\n"),s+="a=ice-options:trickle\r\n",r.transceivers.forEach(function(e,t){s+=n(e,e.localCapabilities,"offer",e.stream,r._dtlsRole),s+="a=rtcp-rsize\r\n",!e.iceGatherer||"new"===r.iceGatheringState||0!==t&&r.usingBundle||(e.iceGatherer.getLocalCandidates().forEach(function(e){e.component=1,s+="a="+d.writeCandidate(e)+"\r\n"}),"completed"===e.iceGatherer.state&&(s+="a=end-of-candidates\r\n"))});var p=new e.RTCSessionDescription({type:"offer",sdp:s});return Promise.resolve(p)},f.prototype.createAnswer=function(){var r=this;if(r._isClosed)return Promise.reject(c("InvalidStateError","Can not call createAnswer after close"));if("have-remote-offer"!==r.signalingState&&"have-local-pranswer"!==r.signalingState)return Promise.reject(c("InvalidStateError","Can not call createAnswer in signalingState "+r.signalingState));var i=d.writeSessionBoilerplate(r._sdpSessionId,r._sdpSessionVersion++);r.usingBundle&&(i+="a=group:BUNDLE "+r.transceivers.map(function(e){return e.mid}).join(" ")+"\r\n");var o=d.getMediaSections(r.remoteDescription.sdp).length;r.transceivers.forEach(function(e,s){if(!(s+1>o)){if(e.rejected)return"application"===e.kind?i+="m=application 0 DTLS/SCTP 5000\r\n":"audio"===e.kind?i+="m=audio 0 UDP/TLS/RTP/SAVPF 0\r\na=rtpmap:0 PCMU/8000\r\n":"video"===e.kind&&(i+="m=video 0 UDP/TLS/RTP/SAVPF 120\r\na=rtpmap:120 VP8/90000\r\n"),void(i+="c=IN IP4 0.0.0.0\r\na=inactive\r\na=mid:"+e.mid+"\r\n");if(e.stream){var c;"audio"===e.kind?c=e.stream.getAudioTracks()[0]:"video"===e.kind&&(c=e.stream.getVideoTracks()[0]),c&&t>=15019&&"video"===e.kind&&!e.sendEncodingParameters[0].rtx&&(e.sendEncodingParameters[0].rtx={ssrc:e.sendEncodingParameters[0].ssrc+1})}var d=a(e.localCapabilities,e.remoteCapabilities);!d.codecs.filter(function(e){return"rtx"===e.name.toLowerCase()}).length&&e.sendEncodingParameters[0].rtx&&delete e.sendEncodingParameters[0].rtx,i+=n(e,d,"answer",e.stream,r._dtlsRole),e.rtcpParameters&&e.rtcpParameters.reducedSize&&(i+="a=rtcp-rsize\r\n")}});var s=new e.RTCSessionDescription({type:"answer",sdp:i});return Promise.resolve(s)},f.prototype.addIceCandidate=function(e){var t=this,r;return e&&void 0===e.sdpMLineIndex&&!e.sdpMid?Promise.reject(new TypeError("sdpMLineIndex or sdpMid required")):new Promise(function(n,i){if(!t.remoteDescription)return i(c("InvalidStateError","Can not add ICE candidate without a remote description"));if(e&&""!==e.candidate){var a=e.sdpMLineIndex;if(e.sdpMid)for(var o=0;o<t.transceivers.length;o++)if(t.transceivers[o].mid===e.sdpMid){a=o;break}var p=t.transceivers[a];if(!p)return i(c("OperationError","Can not add ICE candidate"));if(p.rejected)return n();var u=Object.keys(e.candidate).length>0?d.parseCandidate(e.candidate):{};if("tcp"===u.protocol&&(0===u.port||9===u.port))return n();if(u.component&&1!==u.component)return n();if((0===a||a>0&&p.iceTransport!==t.transceivers[0].iceTransport)&&!s(p.iceTransport,u))return i(c("OperationError","Can not add ICE candidate"));var f=e.candidate.trim();0===f.indexOf("a=")&&(f=f.substr(2)),r=d.getMediaSections(t.remoteDescription.sdp),r[a]+="a="+(u.type?f:"end-of-candidates")+"\r\n",t.remoteDescription.sdp=d.getDescription(t.remoteDescription.sdp)+r.join("")}else for(var l=0;l<t.transceivers.length&&(t.transceivers[l].rejected||(t.transceivers[l].iceTransport.addRemoteCandidate({}),r=d.getMediaSections(t.remoteDescription.sdp),r[l]+="a=end-of-candidates\r\n",t.remoteDescription.sdp=d.getDescription(t.remoteDescription.sdp)+r.join(""),!t.usingBundle));l++);n()})},f.prototype.getStats=function(){var e=[];this.transceivers.forEach(function(t){["rtpSender","rtpReceiver","iceGatherer","iceTransport","dtlsTransport"].forEach(function(r){t[r]&&e.push(t[r].getStats())})});var t=function(e){return{inboundrtp:"inbound-rtp",outboundrtp:"outbound-rtp",candidatepair:"candidate-pair",localcandidate:"local-candidate",remotecandidate:"remote-candidate"}[e.type]||e.type};return new Promise(function(r){var n=new Map;Promise.all(e).then(function(e){e.forEach(function(e){Object.keys(e).forEach(function(r){e[r].type=t(e[r]),n.set(r,e[r])})}),r(n)})})};var l=["createOffer","createAnswer"];return l.forEach(function(e){var t=f.prototype[e];f.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)}}),l=["setLocalDescription","setRemoteDescription","addIceCandidate"],l.forEach(function(e){var t=f.prototype[e];f.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=f.prototype[e];f.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)}}),f}},{sdp:2}],2:[function(e,t,r){"use strict";var n={};n.generateIdentifier=function(){return Math.random().toString(36).substr(2,10)},n.localCName=n.generateIdentifier(),n.splitLines=function(e){return e.trim().split("\n").map(function(e){return e.trim()})},n.splitSections=function(e){return e.split("\nm=").map(function(e,t){return(t>0?"m="+e:e).trim()+"\r\n"})},n.getDescription=function(e){var t=n.splitSections(e);return t&&t[0]},n.getMediaSections=function(e){var t=n.splitSections(e);return t.shift(),t},n.matchPrefix=function(e,t){return n.splitLines(e).filter(function(e){return 0===e.indexOf(t)})},n.parseCandidate=function(e){var t;t=0===e.indexOf("a=candidate:")?e.substring(12).split(" "):e.substring(10).split(" ");for(var r={foundation:t[0],component:parseInt(t[1],10),protocol:t[2].toLowerCase(),priority:parseInt(t[3],10),ip:t[4],port:parseInt(t[5],10),type:t[7]},n=8;n<t.length;n+=2)switch(t[n]){case"raddr":r.relatedAddress=t[n+1];break;case"rport":r.relatedPort=parseInt(t[n+1],10);break;case"tcptype":r.tcpType=t[n+1];break;case"ufrag":r.ufrag=t[n+1],r.usernameFragment=t[n+1];break;default:r[t[n]]=t[n+1];break}return r},n.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.ip),t.push(e.port);var r=e.type;return t.push("typ"),t.push(r),"host"!==r&&e.relatedAddress&&e.relatedPort&&(t.push("raddr"),t.push(e.relatedAddress),t.push("rport"),t.push(e.relatedPort)),e.tcpType&&"tcp"===e.protocol.toLowerCase()&&(t.push("tcptype"),t.push(e.tcpType)),(e.usernameFragment||e.ufrag)&&(t.push("ufrag"),t.push(e.usernameFragment||e.ufrag)),"candidate:"+t.join(" ")},n.parseIceOptions=function(e){return e.substr(14).split(" ")},n.parseRtpMap=function(e){var t=e.substr(9).split(" "),r={payloadType:parseInt(t.shift(),10)};return t=t[0].split("/"),r.name=t[0],r.clockRate=parseInt(t[1],10),r.numChannels=3===t.length?parseInt(t[2],10):1,r},n.writeRtpMap=function(e){var t=e.payloadType;return void 0!==e.preferredPayloadType&&(t=e.preferredPayloadType),"a=rtpmap:"+t+" "+e.name+"/"+e.clockRate+(1!==e.numChannels?"/"+e.numChannels:"")+"\r\n"},n.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]}},n.writeExtmap=function(e){return"a=extmap:"+(e.id||e.preferredId)+(e.direction&&"sendrecv"!==e.direction?"/"+e.direction:"")+" "+e.uri+"\r\n"},n.parseFmtp=function(e){for(var t={},r,n=e.substr(e.indexOf(" ")+1).split(";"),i=0;i<n.length;i++)r=n[i].trim().split("="),t[r[0].trim()]=r[1];return t},n.writeFmtp=function(e){var t="",r=e.payloadType;if(void 0!==e.preferredPayloadType&&(r=e.preferredPayloadType),e.parameters&&Object.keys(e.parameters).length){var n=[];Object.keys(e.parameters).forEach(function(t){n.push(t+"="+e.parameters[t])}),t+="a=fmtp:"+r+" "+n.join(";")+"\r\n"}return t},n.parseRtcpFb=function(e){var t=e.substr(e.indexOf(" ")+1).split(" ");return{type:t.shift(),parameter:t.join(" ")}},n.writeRtcpFb=function(e){var t="",r=e.payloadType;return void 0!==e.preferredPayloadType&&(r=e.preferredPayloadType),e.rtcpFeedback&&e.rtcpFeedback.length&&e.rtcpFeedback.forEach(function(e){t+="a=rtcp-fb:"+r+" "+e.type+(e.parameter&&e.parameter.length?" "+e.parameter:"")+"\r\n"}),t},n.parseSsrcMedia=function(e){var t=e.indexOf(" "),r={ssrc:parseInt(e.substr(7,t-7),10)},n=e.indexOf(":",t);return n>-1?(r.attribute=e.substr(t+1,n-t-1),r.value=e.substr(n+1)):r.attribute=e.substr(t+1),r},n.getMid=function(e){var t=n.matchPrefix(e,"a=mid:")[0];if(t)return t.substr(6)},n.parseFingerprint=function(e){var t=e.substr(14).split(" ");return{algorithm:t[0].toLowerCase(),
value:t[1]}},n.getDtlsParameters=function(e,t){return{role:"auto",fingerprints:n.matchPrefix(e+t,"a=fingerprint:").map(n.parseFingerprint)}},n.writeDtlsParameters=function(e,t){var r="a=setup:"+t+"\r\n";return e.fingerprints.forEach(function(e){r+="a=fingerprint:"+e.algorithm+" "+e.value+"\r\n"}),r},n.getIceParameters=function(e,t){var r=n.splitLines(e);return r=r.concat(n.splitLines(t)),{usernameFragment:r.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)}},n.writeIceParameters=function(e){return"a=ice-ufrag:"+e.usernameFragment+"\r\na=ice-pwd:"+e.password+"\r\n"},n.parseRtpParameters=function(e){for(var t={codecs:[],headerExtensions:[],fecMechanisms:[],rtcp:[]},r=n.splitLines(e),i=r[0].split(" "),a=3;a<i.length;a++){var o=i[a],s=n.matchPrefix(e,"a=rtpmap:"+o+" ")[0];if(s){var c=n.parseRtpMap(s),d=n.matchPrefix(e,"a=fmtp:"+o+" ");switch(c.parameters=d.length?n.parseFmtp(d[0]):{},c.rtcpFeedback=n.matchPrefix(e,"a=rtcp-fb:"+o+" ").map(n.parseRtcpFb),t.codecs.push(c),c.name.toUpperCase()){case"RED":case"ULPFEC":t.fecMechanisms.push(c.name.toUpperCase());break;default:break}}}return n.matchPrefix(e,"a=extmap:").forEach(function(e){t.headerExtensions.push(n.parseExtmap(e))}),t},n.writeRtpDescription=function(e,t){var r="";r+="m="+e+" ",r+=t.codecs.length>0?"9":"0",r+=" UDP/TLS/RTP/SAVPF ",r+=t.codecs.map(function(e){return void 0!==e.preferredPayloadType?e.preferredPayloadType:e.payloadType}).join(" ")+"\r\n",r+="c=IN IP4 0.0.0.0\r\n",r+="a=rtcp:9 IN IP4 0.0.0.0\r\n",t.codecs.forEach(function(e){r+=n.writeRtpMap(e),r+=n.writeFmtp(e),r+=n.writeRtcpFb(e)});var i=0;return t.codecs.forEach(function(e){e.maxptime>i&&(i=e.maxptime)}),i>0&&(r+="a=maxptime:"+i+"\r\n"),r+="a=rtcp-mux\r\n",t.headerExtensions.forEach(function(e){r+=n.writeExtmap(e)}),r},n.parseRtpEncodingParameters=function(e){var t=[],r=n.parseRtpParameters(e),i=-1!==r.fecMechanisms.indexOf("RED"),a=-1!==r.fecMechanisms.indexOf("ULPFEC"),o=n.matchPrefix(e,"a=ssrc:").map(function(e){return n.parseSsrcMedia(e)}).filter(function(e){return"cname"===e.attribute}),s=o.length>0&&o[0].ssrc,c,d=n.matchPrefix(e,"a=ssrc-group:FID").map(function(e){var t=e.split(" ");return t.shift(),t.map(function(e){return parseInt(e,10)})});d.length>0&&d[0].length>1&&d[0][0]===s&&(c=d[0][1]),r.codecs.forEach(function(e){if("RTX"===e.name.toUpperCase()&&e.parameters.apt){var r={ssrc:s,codecPayloadType:parseInt(e.parameters.apt,10),rtx:{ssrc:c}};t.push(r),i&&(r=JSON.parse(JSON.stringify(r)),r.fec={ssrc:c,mechanism:a?"red+ulpfec":"red"},t.push(r))}}),0===t.length&&s&&t.push({ssrc:s});var p=n.matchPrefix(e,"b=");return p.length&&(p=0===p[0].indexOf("b=TIAS:")?parseInt(p[0].substr(7),10):0===p[0].indexOf("b=AS:")?1e3*parseInt(p[0].substr(5),10)*.95-16e3:void 0,t.forEach(function(e){e.maxBitrate=p})),t},n.parseRtcpParameters=function(e){var t={},r,i=n.matchPrefix(e,"a=ssrc:").map(function(e){return n.parseSsrcMedia(e)}).filter(function(e){return"cname"===e.attribute})[0];i&&(t.cname=i.value,t.ssrc=i.ssrc);var a=n.matchPrefix(e,"a=rtcp-rsize");t.reducedSize=a.length>0,t.compound=0===a.length;var o=n.matchPrefix(e,"a=rtcp-mux");return t.mux=o.length>0,t},n.parseMsid=function(e){var t,r=n.matchPrefix(e,"a=msid:");if(1===r.length)return t=r[0].substr(7).split(" "),{stream:t[0],track:t[1]};var i=n.matchPrefix(e,"a=ssrc:").map(function(e){return n.parseSsrcMedia(e)}).filter(function(e){return"msid"===e.attribute});return i.length>0?(t=i[0].value.split(" "),{stream:t[0],track:t[1]}):void 0},n.generateSessionId=function(){return Math.random().toString().substr(2,21)},n.writeSessionBoilerplate=function(e,t){var r,i=void 0!==t?t:2;return"v=0\r\no=thisisadapterortc "+(r=e||n.generateSessionId())+" "+i+" IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\n"},n.writeMediaSection=function(e,t,r,i){var a=n.writeRtpDescription(e.kind,t);if(a+=n.writeIceParameters(e.iceGatherer.getLocalParameters()),a+=n.writeDtlsParameters(e.dtlsTransport.getLocalParameters(),"offer"===r?"actpass":"active"),a+="a=mid:"+e.mid+"\r\n",e.direction?a+="a="+e.direction+"\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 o="msid:"+i.id+" "+e.rtpSender.track.id+"\r\n";a+="a="+o,a+="a=ssrc:"+e.sendEncodingParameters[0].ssrc+" "+o,e.sendEncodingParameters[0].rtx&&(a+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" "+o,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:"+n.localCName+"\r\n",e.rtpSender&&e.sendEncodingParameters[0].rtx&&(a+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" cname:"+n.localCName+"\r\n"),a},n.getDirection=function(e,t){for(var r=n.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);default:}return t?n.getDirection(t):"sendrecv"},n.getKind=function(e){return n.splitLines(e)[0].split(" ")[0].substr(2)},n.isRejected=function(e){return"0"===e.split(" ",2)[1]},n.parseMLine=function(e){var t=n.splitLines(e),r=t[0].substr(2).split(" ");return{kind:r[0],port:parseInt(r[1],10),protocol:r[2],fmt:r.slice(3).join(" ")}},n.parseOLine=function(e){var t=n.matchPrefix(e,"o=")[0],r=t.substr(2).split(" ");return{username:r[0],sessionId:r[1],sessionVersion:parseInt(r[2],10),netType:r[3],addressType:r[4],address:r[5]}},"object"==typeof t&&(t.exports=n)},{}],3:[function(e,t,r){(function(r){"use strict";var n=e("./adapter_factory.js");t.exports=n({window:r.window})}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"./adapter_factory.js":4}],4:[function(e,t,r){"use strict";var n=e("./utils");t.exports=function(t,r){var i=t&&t.window,a={shimChrome:!0,shimFirefox:!0,shimEdge:!0,shimSafari:!0};for(var o in r)hasOwnProperty.call(r,o)&&(a[o]=r[o]);var s=n.log,c=n.detectBrowser(i),d=e("./chrome/chrome_shim")||null,p=e("./edge/edge_shim")||null,u=e("./firefox/firefox_shim")||null,f=e("./safari/safari_shim")||null,l=e("./common_shim")||null,m={browserDetails:c,commonShim:l,extractVersion:n.extractVersion,disableLog:n.disableLog,disableWarnings:n.disableWarnings};switch(c.browser){case"chrome":if(!d||!d.shimPeerConnection||!a.shimChrome)return s("Chrome shim is not included in this adapter release."),m;s("adapter.js shimming chrome."),m.browserShim=d,l.shimCreateObjectURL(i),d.shimGetUserMedia(i),d.shimMediaStream(i),d.shimSourceObject(i),d.shimPeerConnection(i),d.shimOnTrack(i),d.shimAddTrackRemoveTrack(i),d.shimGetSendersWithDtmf(i),l.shimRTCIceCandidate(i),l.shimMaxMessageSize(i),l.shimSendThrowTypeError(i);break;case"firefox":if(!u||!u.shimPeerConnection||!a.shimFirefox)return s("Firefox shim is not included in this adapter release."),m;s("adapter.js shimming firefox."),m.browserShim=u,l.shimCreateObjectURL(i),u.shimGetUserMedia(i),u.shimSourceObject(i),u.shimPeerConnection(i),u.shimOnTrack(i),u.shimRemoveStream(i),l.shimRTCIceCandidate(i),l.shimMaxMessageSize(i),l.shimSendThrowTypeError(i);break;case"edge":if(!p||!p.shimPeerConnection||!a.shimEdge)return s("MS edge shim is not included in this adapter release."),m;s("adapter.js shimming edge."),m.browserShim=p,l.shimCreateObjectURL(i),p.shimGetUserMedia(i),p.shimPeerConnection(i),p.shimReplaceTrack(i),l.shimMaxMessageSize(i),l.shimSendThrowTypeError(i);break;case"safari":if(!f||!a.shimSafari)return s("Safari shim is not included in this adapter release."),m;s("adapter.js shimming safari."),m.browserShim=f,l.shimCreateObjectURL(i),f.shimRTCIceServerUrls(i),f.shimCallbacksAPI(i),f.shimLocalStreamsAPI(i),f.shimRemoteStreamsAPI(i),f.shimTrackEventTransceiver(i),f.shimGetUserMedia(i),f.shimCreateOfferLegacy(i),l.shimRTCIceCandidate(i),l.shimMaxMessageSize(i),l.shimSendThrowTypeError(i);break;default:s("Unsupported browser!");break}return m}},{"./chrome/chrome_shim":5,"./common_shim":7,"./edge/edge_shim":8,"./firefox/firefox_shim":10,"./safari/safari_shim":12,"./utils":13}],5:[function(e,t,r){"use strict";var n=e("../utils.js"),i=n.log;t.exports={shimGetUserMedia:e("./getusermedia"),shimMediaStream:function(e){e.MediaStream=e.MediaStream||e.webkitMediaStream},shimOnTrack:function(e){if("object"!=typeof e||!e.RTCPeerConnection||"ontrack"in e.RTCPeerConnection.prototype)"RTCRtpTransceiver"in e||n.wrapPeerConnectionEvent(e,"track",function(e){return e.transceiver||(e.transceiver={receiver:e.receiver}),e});else{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)}});var t=e.RTCPeerConnection.prototype.setRemoteDescription;e.RTCPeerConnection.prototype.setRemoteDescription=function(){var r=this;return r._ontrackpoly||(r._ontrackpoly=function(t){t.stream.addEventListener("addtrack",function(n){var i;i=e.RTCPeerConnection.prototype.getReceivers?r.getReceivers().find(function(e){return e.track&&e.track.id===n.track.id}):{track:n.track};var a=new Event("track");a.track=n.track,a.receiver=i,a.transceiver={receiver:i},a.streams=[t.stream],r.dispatchEvent(a)}),t.stream.getTracks().forEach(function(n){var i;i=e.RTCPeerConnection.prototype.getReceivers?r.getReceivers().find(function(e){return e.track&&e.track.id===n.id}):{track:n};var a=new Event("track");a.track=n,a.receiver=i,a.transceiver={receiver:i},a.streams=[t.stream],r.dispatchEvent(a)})},r.addEventListener("addstream",r._ontrackpoly)),t.apply(r,arguments)}}},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 r=e.RTCPeerConnection.prototype.addTrack;e.RTCPeerConnection.prototype.addTrack=function(e,n){var i=this,a=r.apply(i,arguments);return a||(a=t(i,e),i._senders.push(a)),a};var n=e.RTCPeerConnection.prototype.removeTrack;e.RTCPeerConnection.prototype.removeTrack=function(e){var t=this;n.apply(t,arguments);var r=t._senders.indexOf(e);-1!==r&&t._senders.splice(r,1)}}var i=e.RTCPeerConnection.prototype.addStream;e.RTCPeerConnection.prototype.addStream=function(e){var r=this;r._senders=r._senders||[],i.apply(r,[e]),e.getTracks().forEach(function(e){r._senders.push(t(r,e))})};var a=e.RTCPeerConnection.prototype.removeStream;e.RTCPeerConnection.prototype.removeStream=function(e){var t=this;t._senders=t._senders||[],a.apply(t,[e]),e.getTracks().forEach(function(e){var r=t._senders.find(function(t){return t.track===e});r&&t._senders.splice(t._senders.indexOf(r),1)})}}else if("object"==typeof e&&e.RTCPeerConnection&&"getSenders"in e.RTCPeerConnection.prototype&&"createDTMFSender"in e.RTCPeerConnection.prototype&&e.RTCRtpSender&&!("dtmf"in e.RTCRtpSender.prototype)){var o=e.RTCPeerConnection.prototype.getSenders;e.RTCPeerConnection.prototype.getSenders=function(){var e=this,t=o.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}})}},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 r=this;if(this._srcObject=e,this.src&&t.revokeObjectURL(this.src),!e)return void(this.src="");this.src=t.createObjectURL(e),e.addEventListener("addtrack",function(){r.src&&t.revokeObjectURL(r.src),r.src=t.createObjectURL(e)}),e.addEventListener("removetrack",function(){r.src&&t.revokeObjectURL(r.src),r.src=t.createObjectURL(e)})}}))},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,r){if(!r)return t.apply(this,arguments);this._shimmedLocalStreams=this._shimmedLocalStreams||{};var n=t.apply(this,arguments);return this._shimmedLocalStreams[r.id]?-1===this._shimmedLocalStreams[r.id].indexOf(n)&&this._shimmedLocalStreams[r.id].push(n):this._shimmedLocalStreams[r.id]=[r,n],n};var r=e.RTCPeerConnection.prototype.addStream;e.RTCPeerConnection.prototype.addStream=function(e){var t=this;this._shimmedLocalStreams=this._shimmedLocalStreams||{},e.getTracks().forEach(function(e){if(t.getSenders().find(function(t){return t.track===e}))throw new DOMException("Track already exists.","InvalidAccessError")});var n=t.getSenders();r.apply(this,arguments);var i=t.getSenders().filter(function(e){return-1===n.indexOf(e)});this._shimmedLocalStreams[e.id]=[e].concat(i)};var n=e.RTCPeerConnection.prototype.removeStream;e.RTCPeerConnection.prototype.removeStream=function(e){return this._shimmedLocalStreams=this._shimmedLocalStreams||{},delete this._shimmedLocalStreams[e.id],n.apply(this,arguments)};var i=e.RTCPeerConnection.prototype.removeTrack;e.RTCPeerConnection.prototype.removeTrack=function(e){var t=this;return this._shimmedLocalStreams=this._shimmedLocalStreams||{},e&&Object.keys(this._shimmedLocalStreams).forEach(function(r){var n=t._shimmedLocalStreams[r].indexOf(e);-1!==n&&t._shimmedLocalStreams[r].splice(n,1),1===t._shimmedLocalStreams[r].length&&delete t._shimmedLocalStreams[r]}),i.apply(this,arguments)}},shimAddTrackRemoveTrack:function(e){function t(e,t){var r=t.sdp;return Object.keys(e._reverseStreams||[]).forEach(function(t){var n=e._reverseStreams[t],i=e._streams[n.id];r=r.replace(new RegExp(i.id,"g"),n.id)}),new RTCSessionDescription({type:t.type,sdp:r})}function r(e,t){var r=t.sdp;return Object.keys(e._reverseStreams||[]).forEach(function(t){var n=e._reverseStreams[t],i=e._streams[n.id];r=r.replace(new RegExp(n.id,"g"),i.id)}),new RTCSessionDescription({type:t.type,sdp:r})}var i=n.detectBrowser(e);if(e.RTCPeerConnection.prototype.addTrack&&i.version>=65)return this.shimAddTrackRemoveTrackWithNative(e);var a=e.RTCPeerConnection.prototype.getLocalStreams;e.RTCPeerConnection.prototype.getLocalStreams=function(){var e=this,t=a.apply(this);return e._reverseStreams=e._reverseStreams||{},t.map(function(t){return e._reverseStreams[t.id]})};var o=e.RTCPeerConnection.prototype.addStream;e.RTCPeerConnection.prototype.addStream=function(t){var r=this;if(r._streams=r._streams||{},r._reverseStreams=r._reverseStreams||{},t.getTracks().forEach(function(e){if(r.getSenders().find(function(t){return t.track===e}))throw new DOMException("Track already exists.","InvalidAccessError")}),!r._reverseStreams[t.id]){var n=new e.MediaStream(t.getTracks());r._streams[t.id]=n,r._reverseStreams[n.id]=t,t=n}o.apply(r,[t])};var s=e.RTCPeerConnection.prototype.removeStream;e.RTCPeerConnection.prototype.removeStream=function(e){var t=this;t._streams=t._streams||{},t._reverseStreams=t._reverseStreams||{},s.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,r){var n=this;if("closed"===n.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");if(n.getSenders().find(function(e){return e.track===t}))throw new DOMException("Track already exists.","InvalidAccessError");n._streams=n._streams||{},n._reverseStreams=n._reverseStreams||{};var a=n._streams[r.id];if(a)a.addTrack(t),Promise.resolve().then(function(){n.dispatchEvent(new Event("negotiationneeded"))});else{var o=new e.MediaStream([t]);n._streams[r.id]=o,n._reverseStreams[o.id]=r,n.addStream(o)}return n.getSenders().find(function(e){return e.track===t})},["createOffer","createAnswer"].forEach(function(r){var n=e.RTCPeerConnection.prototype[r];e.RTCPeerConnection.prototype[r]=function(){var e=this,r=arguments;return arguments.length&&"function"==typeof arguments[0]?n.apply(e,[function(n){var i=t(e,n);r[0].apply(null,[i])},function(e){r[1]&&r[1].apply(null,e)},arguments[2]]):n.apply(e,arguments).then(function(r){return t(e,r)})}});var c=e.RTCPeerConnection.prototype.setLocalDescription;e.RTCPeerConnection.prototype.setLocalDescription=function(){var e=this;return arguments.length&&arguments[0].type?(arguments[0]=r(e,arguments[0]),c.apply(e,arguments)):c.apply(e,arguments)};var d=Object.getOwnPropertyDescriptor(e.RTCPeerConnection.prototype,"localDescription");Object.defineProperty(e.RTCPeerConnection.prototype,"localDescription",{get:function(){var e=this,r=d.get.apply(this);return""===r.type?r:t(e,r)}}),e.RTCPeerConnection.prototype.removeTrack=function(e){var t=this;if("closed"===t.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!==t)throw new DOMException("Sender was not created by this connection.","InvalidAccessError");t._streams=t._streams||{};var r;Object.keys(t._streams).forEach(function(n){t._streams[n].getTracks().find(function(t){return e.track===t})&&(r=t._streams[n])}),r&&(1===r.getTracks().length?t.removeStream(t._reverseStreams[r.id]):r.removeTrack(e.track),t.dispatchEvent(new Event("negotiationneeded")))}},shimPeerConnection:function(e){var t=n.detectBrowser(e);if(!e.RTCPeerConnection&&e.webkitRTCPeerConnection)e.RTCPeerConnection=function(t,r){return i("PeerConnection"),t&&t.iceTransportPolicy&&(t.iceTransports=t.iceTransportPolicy),new e.webkitRTCPeerConnection(t,r)},e.RTCPeerConnection.prototype=e.webkitRTCPeerConnection.prototype,e.webkitRTCPeerConnection.generateCertificate&&Object.defineProperty(e.RTCPeerConnection,"generateCertificate",{get:function(){return e.webkitRTCPeerConnection.generateCertificate}});else{var r=e.RTCPeerConnection;e.RTCPeerConnection=function(e,t){if(e&&e.iceServers){for(var i=[],a=0;a<e.iceServers.length;a++){var o=e.iceServers[a];!o.hasOwnProperty("urls")&&o.hasOwnProperty("url")?(n.deprecated("RTCIceServer.url","RTCIceServer.urls"),o=JSON.parse(JSON.stringify(o)),o.urls=o.url,i.push(o)):i.push(e.iceServers[a])}e.iceServers=i}return new r(e,t)},e.RTCPeerConnection.prototype=r.prototype,Object.defineProperty(e.RTCPeerConnection,"generateCertificate",{get:function(){return r.generateCertificate}})}var a=e.RTCPeerConnection.prototype.getStats;e.RTCPeerConnection.prototype.getStats=function(e,t,r){var n=this,i=arguments;if(arguments.length>0&&"function"==typeof e)return a.apply(this,arguments);if(0===a.length&&(0===arguments.length||"function"!=typeof arguments[0]))return a.apply(this,[]);var o=function(e){var t={};return e.result().forEach(function(e){var r={id:e.id,timestamp:e.timestamp,type:{localcandidate:"local-candidate",remotecandidate:"remote-candidate"}[e.type]||e.type};e.names().forEach(function(t){r[t]=e.stat(t)}),t[r.id]=r}),t},s=function(e){return new Map(Object.keys(e).map(function(t){return[t,e[t]]}))};if(arguments.length>=2){var c=function(e){i[1](s(o(e)))};return a.apply(this,[c,arguments[0]])}return new Promise(function(e,t){a.apply(n,[function(t){e(s(o(t)))},t])}).then(t,r)},t.version<51&&["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach(function(t){var r=e.RTCPeerConnection.prototype[t];e.RTCPeerConnection.prototype[t]=function(){var e=arguments,t=this,n=new Promise(function(n,i){r.apply(t,[e[0],n,i])});return e.length<2?n:n.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 r=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(n,i){r.apply(e,[n,i,t])})}return r.apply(this,arguments)}}),["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach(function(t){var r=e.RTCPeerConnection.prototype[t];e.RTCPeerConnection.prototype[t]=function(){return arguments[0]=new("addIceCandidate"===t?e.RTCIceCandidate:e.RTCSessionDescription)(arguments[0]),r.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())}}}},{"../utils.js":13,"./getusermedia":6}],6:[function(e,t,r){"use strict";var n=e("../utils.js"),i=n.log;t.exports=function(e){var t=n.detectBrowser(e),r=e&&e.navigator,a=function(e){if("object"!=typeof e||e.mandatory||e.optional)return e;var t={};return Object.keys(e).forEach(function(r){if("require"!==r&&"advanced"!==r&&"mediaSource"!==r){var n="object"==typeof e[r]?e[r]:{ideal:e[r]};void 0!==n.exact&&"number"==typeof n.exact&&(n.min=n.max=n.exact);var i=function(e,t){return e?e+t.charAt(0).toUpperCase()+t.slice(1):"deviceId"===t?"sourceId":t};if(void 0!==n.ideal){t.optional=t.optional||[];var a={};"number"==typeof n.ideal?(a[i("min",r)]=n.ideal,t.optional.push(a),a={},a[i("max",r)]=n.ideal,t.optional.push(a)):(a[i("",r)]=n.ideal,t.optional.push(a))}void 0!==n.exact&&"number"!=typeof n.exact?(t.mandatory=t.mandatory||{},t.mandatory[i("",r)]=n.exact):["min","max"].forEach(function(e){void 0!==n[e]&&(t.mandatory=t.mandatory||{},t.mandatory[i(e,r)]=n[e])})}}),e.advanced&&(t.optional=(t.optional||[]).concat(e.advanced)),t},o=function(e,n){if(t.version>=61)return n(e);if((e=JSON.parse(JSON.stringify(e)))&&"object"==typeof e.audio){var o=function(e,t,r){t in e&&!(r in e)&&(e[r]=e[t],delete e[t])};e=JSON.parse(JSON.stringify(e)),o(e.audio,"autoGainControl","googAutoGainControl"),o(e.audio,"noiseSuppression","googNoiseSuppression"),e.audio=a(e.audio)}if(e&&"object"==typeof e.video){var s=e.video.facingMode;s=s&&("object"==typeof s?s:{ideal:s});var c=t.version<66;if(s&&("user"===s.exact||"environment"===s.exact||"user"===s.ideal||"environment"===s.ideal)&&(!r.mediaDevices.getSupportedConstraints||!r.mediaDevices.getSupportedConstraints().facingMode||c)){delete e.video.facingMode;var d;if("environment"===s.exact||"environment"===s.ideal?d=["back","rear"]:"user"!==s.exact&&"user"!==s.ideal||(d=["front"]),d)return r.mediaDevices.enumerateDevices().then(function(t){t=t.filter(function(e){return"videoinput"===e.kind});var r=t.find(function(e){return d.some(function(t){return-1!==e.label.toLowerCase().indexOf(t)})});return!r&&t.length&&-1!==d.indexOf("back")&&(r=t[t.length-1]),r&&(e.video.deviceId=s.exact?{exact:r.deviceId}:{ideal:r.deviceId}),e.video=a(e.video),i("chrome: "+JSON.stringify(e)),n(e)})}e.video=a(e.video)}return i("chrome: "+JSON.stringify(e)),n(e)},s=function(e){return{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.constraintName,toString:function(){return this.name+(this.message&&": ")+this.message}}},c=function(e,t,n){o(e,function(e){r.webkitGetUserMedia(e,t,function(e){n&&n(s(e))})})};r.getUserMedia=c;var d=function(e){return new Promise(function(t,n){r.getUserMedia(e,t,n)})};if(r.mediaDevices||(r.mediaDevices={getUserMedia:d,enumerateDevices:function(){return new Promise(function(t){var r={audio:"audioinput",video:"videoinput"};return e.MediaStreamTrack.getSources(function(e){t(e.map(function(e){return{label:e.label,kind:r[e.kind],deviceId:e.id,groupId:""}}))})})},getSupportedConstraints:function(){return{deviceId:!0,echoCancellation:!0,facingMode:!0,frameRate:!0,height:!0,width:!0}}}),r.mediaDevices.getUserMedia){var p=r.mediaDevices.getUserMedia.bind(r.mediaDevices);r.mediaDevices.getUserMedia=function(e){return o(e,function(e){return p(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 r.mediaDevices.getUserMedia=function(e){return d(e)};void 0===r.mediaDevices.addEventListener&&(r.mediaDevices.addEventListener=function(){i("Dummy mediaDevices.addEventListener called.")}),void 0===r.mediaDevices.removeEventListener&&(r.mediaDevices.removeEventListener=function(){i("Dummy mediaDevices.removeEventListener called.")})}},{"../utils.js":13}],7:[function(e,t,r){"use strict";var n=e("sdp"),i=e("./utils");t.exports={shimRTCIceCandidate:function(e){if(e.RTCIceCandidate&&!(e.RTCIceCandidate&&"foundation"in e.RTCIceCandidate.prototype)){var t=e.RTCIceCandidate;e.RTCIceCandidate=function(e){if("object"==typeof e&&e.candidate&&0===e.candidate.indexOf("a=")&&(e=JSON.parse(JSON.stringify(e)),e.candidate=e.candidate.substr(2)),e.candidate&&e.candidate.length){var r=new t(e),i=n.parseCandidate(e.candidate),a=Object.assign(r,i);return a.toJSON=function(){return{candidate:a.candidate,sdpMid:a.sdpMid,sdpMLineIndex:a.sdpMLineIndex,usernameFragment:a.usernameFragment}},a}return new t(e)},e.RTCIceCandidate.prototype=t.prototype,i.wrapPeerConnectionEvent(e,"icecandidate",function(t){return t.candidate&&Object.defineProperty(t,"candidate",{value:new e.RTCIceCandidate(t.candidate),writable:"false"}),t})}},shimCreateObjectURL:function(e){var t=e&&e.URL;if("object"==typeof e&&e.HTMLMediaElement&&"srcObject"in e.HTMLMediaElement.prototype&&t.createObjectURL&&t.revokeObjectURL){var r=t.createObjectURL.bind(t),n=t.revokeObjectURL.bind(t),a=new Map,o=0;t.createObjectURL=function(e){if("getTracks"in e){var t="polyblob:"+ ++o;return a.set(t,e),i.deprecated("URL.createObjectURL(stream)","elem.srcObject = stream"),t}return r(e)},t.revokeObjectURL=function(e){n(e),a.delete(e)};var s=Object.getOwnPropertyDescriptor(e.HTMLMediaElement.prototype,"src");Object.defineProperty(e.HTMLMediaElement.prototype,"src",{get:function(){return s.get.apply(this)},set:function(e){return this.srcObject=a.get(e)||null,s.set.apply(this,[e])}});var c=e.HTMLMediaElement.prototype.setAttribute;e.HTMLMediaElement.prototype.setAttribute=function(){return 2===arguments.length&&"src"===(""+arguments[0]).toLowerCase()&&(this.srcObject=a.get(arguments[1])||null),c.apply(this,arguments)}}},shimMaxMessageSize:function(e){if(!e.RTCSctpTransport&&e.RTCPeerConnection){var t=i.detectBrowser(e);"sctp"in e.RTCPeerConnection.prototype||Object.defineProperty(e.RTCPeerConnection.prototype,"sctp",{get:function(){return void 0===this._sctp?null:this._sctp}});var r=function(e){var t=n.splitSections(e.sdp);return t.shift(),t.some(function(e){var t=n.parseMLine(e);return t&&"application"===t.kind&&-1!==t.protocol.indexOf("SCTP")})},a=function(e){var t=e.sdp.match(/mozilla...THIS_IS_SDPARTA-(\d+)/);if(null===t||t.length<2)return-1;var r=parseInt(t[1],10);return r!==r?-1:r},o=function(e){var r=65536;return"firefox"===t.browser&&(r=t.version<57?-1===e?16384:2147483637:57===t.version?65535:65536),r},s=function(e,r){var i=65536;"firefox"===t.browser&&57===t.version&&(i=65535);var a=n.matchPrefix(e.sdp,"a=max-message-size:");return a.length>0?i=parseInt(a[0].substr(19),10):"firefox"===t.browser&&-1!==r&&(i=2147483637),i},c=e.RTCPeerConnection.prototype.setRemoteDescription;e.RTCPeerConnection.prototype.setRemoteDescription=function(){var e=this;if(e._sctp=null,r(arguments[0])){var t=a(arguments[0]),n=o(t),i=s(arguments[0],t),d;d=0===n&&0===i?Number.POSITIVE_INFINITY:0===n||0===i?Math.max(n,i):Math.min(n,i);var p={};Object.defineProperty(p,"maxMessageSize",{get:function(){return d}}),e._sctp=p}return c.apply(e,arguments)}}},shimSendThrowTypeError:function(e){if(e.RTCPeerConnection&&"createDataChannel"in e.RTCPeerConnection.prototype){var t=e.RTCPeerConnection.prototype.createDataChannel;e.RTCPeerConnection.prototype.createDataChannel=function(){var e=this,r=t.apply(e,arguments),n=r.send;return r.send=function(){var t=this,r=arguments[0];if((r.length||r.size||r.byteLength)>e.sctp.maxMessageSize)throw new DOMException("Message too large (can send a maximum of "+e.sctp.maxMessageSize+" bytes)","TypeError");return n.apply(t,arguments)},r}}}}},{"./utils":13,sdp:2}],8:[function(e,t,r){"use strict";var n=e("../utils"),i=e("rtcpeerconnection-shim");t.exports={shimGetUserMedia:e("./getusermedia"),shimPeerConnection:function(e){var t=n.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 r=Object.getOwnPropertyDescriptor(e.MediaStreamTrack.prototype,"enabled");Object.defineProperty(e.MediaStreamTrack.prototype,"enabled",{set:function(e){r.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),e.RTCPeerConnection=i(e,t.version)},shimReplaceTrack:function(e){!e.RTCRtpSender||"replaceTrack"in e.RTCRtpSender.prototype||(e.RTCRtpSender.prototype.replaceTrack=e.RTCRtpSender.prototype.setTrack)}}},{"../utils":13,"./getusermedia":9,"rtcpeerconnection-shim":1}],9:[function(e,t,r){"use strict";t.exports=function(e){var t=e&&e.navigator,r=function(e){return{name:{PermissionDeniedError:"NotAllowedError"}[e.name]||e.name,message:e.message,constraint:e.constraint,toString:function(){return this.name}}},n=t.mediaDevices.getUserMedia.bind(t.mediaDevices);t.mediaDevices.getUserMedia=function(e){return n(e).catch(function(e){return Promise.reject(r(e))})}}},{}],10:[function(e,t,r){"use strict";var n=e("../utils");t.exports={shimGetUserMedia:e("./getusermedia"),shimOnTrack:function(e){"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.removeEventListener("addstream",this._ontrackpoly)),this.addEventListener("track",this._ontrack=e),this.addEventListener("addstream",this._ontrackpoly=function(e){e.stream.getTracks().forEach(function(t){var r=new Event("track");r.track=t,r.receiver={track:t},r.transceiver={receiver:r.receiver},r.streams=[e.stream],this.dispatchEvent(r)}.bind(this))}.bind(this))}}),"object"==typeof e&&e.RTCTrackEvent&&"receiver"in e.RTCTrackEvent.prototype&&!("transceiver"in e.RTCTrackEvent.prototype)&&Object.defineProperty(e.RTCTrackEvent.prototype,"transceiver",{get:function(){return{receiver:this.receiver}}})},shimSourceObject:function(e){"object"==typeof e&&(!e.HTMLMediaElement||"srcObject"in e.HTMLMediaElement.prototype||Object.defineProperty(e.HTMLMediaElement.prototype,"srcObject",{get:function(){return this.mozSrcObject},
set:function(e){this.mozSrcObject=e}}))},shimPeerConnection:function(e){var t=n.detectBrowser(e);if("object"==typeof e&&(e.RTCPeerConnection||e.mozRTCPeerConnection)){e.RTCPeerConnection||(e.RTCPeerConnection=function(r,n){if(t.version<38&&r&&r.iceServers){for(var i=[],a=0;a<r.iceServers.length;a++){var o=r.iceServers[a];if(o.hasOwnProperty("urls"))for(var s=0;s<o.urls.length;s++){var c={url:o.urls[s]};0===o.urls[s].indexOf("turn")&&(c.username=o.username,c.credential=o.credential),i.push(c)}else i.push(r.iceServers[a])}r.iceServers=i}return new e.mozRTCPeerConnection(r,n)},e.RTCPeerConnection.prototype=e.mozRTCPeerConnection.prototype,e.mozRTCPeerConnection.generateCertificate&&Object.defineProperty(e.RTCPeerConnection,"generateCertificate",{get:function(){return e.mozRTCPeerConnection.generateCertificate}}),e.RTCSessionDescription=e.mozRTCSessionDescription,e.RTCIceCandidate=e.mozRTCIceCandidate),["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach(function(t){var r=e.RTCPeerConnection.prototype[t];e.RTCPeerConnection.prototype[t]=function(){return arguments[0]=new("addIceCandidate"===t?e.RTCIceCandidate:e.RTCSessionDescription)(arguments[0]),r.apply(this,arguments)}});var r=e.RTCPeerConnection.prototype.addIceCandidate;e.RTCPeerConnection.prototype.addIceCandidate=function(){return arguments[0]?r.apply(this,arguments):(arguments[1]&&arguments[1].apply(null),Promise.resolve())};var i=function(e){var t=new Map;return Object.keys(e).forEach(function(r){t.set(r,e[r]),t[r]=e[r]}),t},a={inboundrtp:"inbound-rtp",outboundrtp:"outbound-rtp",candidatepair:"candidate-pair",localcandidate:"local-candidate",remotecandidate:"remote-candidate"},o=e.RTCPeerConnection.prototype.getStats;e.RTCPeerConnection.prototype.getStats=function(e,r,n){return o.apply(this,[e||null]).then(function(e){if(t.version<48&&(e=i(e)),t.version<53&&!r)try{e.forEach(function(e){e.type=a[e.type]||e.type})}catch(t){if("TypeError"!==t.name)throw t;e.forEach(function(t,r){e.set(r,Object.assign({},t,{type:a[t.type]||t.type}))})}return e}).then(r,n)}}},shimRemoveStream:function(e){!e.RTCPeerConnection||"removeStream"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.removeStream=function(e){var t=this;n.deprecated("removeStream","removeTrack"),this.getSenders().forEach(function(r){r.track&&-1!==e.getTracks().indexOf(r.track)&&t.removeTrack(r)})})}}},{"../utils":13,"./getusermedia":11}],11:[function(e,t,r){"use strict";var n=e("../utils"),i=n.log;t.exports=function(e){var t=n.detectBrowser(e),r=e&&e.navigator,a=e&&e.MediaStreamTrack,o=function(e){return{name:{InternalError:"NotReadableError",NotSupportedError:"TypeError",PermissionDeniedError:"NotAllowedError",SecurityError:"NotAllowedError"}[e.name]||e.name,message:{"The operation is insecure.":"The request is not allowed by the user agent or the platform in the current context."}[e.message]||e.message,constraint:e.constraint,toString:function(){return this.name+(this.message&&": ")+this.message}}},s=function(e,n,a){var s=function(e){if("object"!=typeof e||e.require)return e;var t=[];return Object.keys(e).forEach(function(r){if("require"!==r&&"advanced"!==r&&"mediaSource"!==r){var n=e[r]="object"==typeof e[r]?e[r]:{ideal:e[r]};if(void 0===n.min&&void 0===n.max&&void 0===n.exact||t.push(r),void 0!==n.exact&&("number"==typeof n.exact?n.min=n.max=n.exact:e[r]=n.exact,delete n.exact),void 0!==n.ideal){e.advanced=e.advanced||[];var i={};"number"==typeof n.ideal?i[r]={min:n.ideal,max:n.ideal}:i[r]=n.ideal,e.advanced.push(i),delete n.ideal,Object.keys(n).length||delete e[r]}}}),t.length&&(e.require=t),e};return e=JSON.parse(JSON.stringify(e)),t.version<38&&(i("spec: "+JSON.stringify(e)),e.audio&&(e.audio=s(e.audio)),e.video&&(e.video=s(e.video)),i("ff37: "+JSON.stringify(e))),r.mozGetUserMedia(e,n,function(e){a(o(e))})},c=function(e){return new Promise(function(t,r){s(e,t,r)})};if(r.mediaDevices||(r.mediaDevices={getUserMedia:c,addEventListener:function(){},removeEventListener:function(){}}),r.mediaDevices.enumerateDevices=r.mediaDevices.enumerateDevices||function(){return new Promise(function(e){e([{kind:"audioinput",deviceId:"default",label:"",groupId:""},{kind:"videoinput",deviceId:"default",label:"",groupId:""}])})},t.version<41){var d=r.mediaDevices.enumerateDevices.bind(r.mediaDevices);r.mediaDevices.enumerateDevices=function(){return d().then(void 0,function(e){if("NotFoundError"===e.name)return[];throw e})}}if(t.version<49){var p=r.mediaDevices.getUserMedia.bind(r.mediaDevices);r.mediaDevices.getUserMedia=function(e){return p(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("The object can not be found here.","NotFoundError");return t},function(e){return Promise.reject(o(e))})}}if(!(t.version>55&&"autoGainControl"in r.mediaDevices.getSupportedConstraints())){var u=function(e,t,r){t in e&&!(r in e)&&(e[r]=e[t],delete e[t])},f=r.mediaDevices.getUserMedia.bind(r.mediaDevices);if(r.mediaDevices.getUserMedia=function(e){return"object"==typeof e&&"object"==typeof e.audio&&(e=JSON.parse(JSON.stringify(e)),u(e.audio,"autoGainControl","mozAutoGainControl"),u(e.audio,"noiseSuppression","mozNoiseSuppression")),f(e)},a&&a.prototype.getSettings){var l=a.prototype.getSettings;a.prototype.getSettings=function(){var e=l.apply(this,arguments);return u(e,"mozAutoGainControl","autoGainControl"),u(e,"mozNoiseSuppression","noiseSuppression"),e}}if(a&&a.prototype.applyConstraints){var m=a.prototype.applyConstraints;a.prototype.applyConstraints=function(e){return"audio"===this.kind&&"object"==typeof e&&(e=JSON.parse(JSON.stringify(e)),u(e,"autoGainControl","mozAutoGainControl"),u(e,"noiseSuppression","mozNoiseSuppression")),m.apply(this,[e])}}}r.getUserMedia=function(e,i,a){if(t.version<44)return s(e,i,a);n.deprecated("navigator.getUserMedia","navigator.mediaDevices.getUserMedia"),r.mediaDevices.getUserMedia(e).then(i,a)}}},{"../utils":13}],12:[function(e,t,r){"use strict";var n=e("../utils");t.exports={shimLocalStreamsAPI:function(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}),"getStreamById"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.getStreamById=function(e){var t=null;return this._localStreams&&this._localStreams.forEach(function(r){r.id===e&&(t=r)}),this._remoteStreams&&this._remoteStreams.forEach(function(r){r.id===e&&(t=r)}),t}),!("addStream"in e.RTCPeerConnection.prototype)){var t=e.RTCPeerConnection.prototype.addTrack;e.RTCPeerConnection.prototype.addStream=function(e){this._localStreams||(this._localStreams=[]),-1===this._localStreams.indexOf(e)&&this._localStreams.push(e);var r=this;e.getTracks().forEach(function(n){t.call(r,n,e)})},e.RTCPeerConnection.prototype.addTrack=function(e,r){return r&&(this._localStreams?-1===this._localStreams.indexOf(r)&&this._localStreams.push(r):this._localStreams=[r]),t.call(this,e,r)}}"removeStream"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.removeStream=function(e){this._localStreams||(this._localStreams=[]);var t=this._localStreams.indexOf(e);if(-1!==t){this._localStreams.splice(t,1);var r=this,n=e.getTracks();this.getSenders().forEach(function(e){-1!==n.indexOf(e.track)&&r.removeTrack(e)})}})}},shimRemoteStreamsAPI:function(e){"object"==typeof e&&e.RTCPeerConnection&&("getRemoteStreams"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.getRemoteStreams=function(){return this._remoteStreams?this._remoteStreams:[]}),"onaddstream"in e.RTCPeerConnection.prototype||Object.defineProperty(e.RTCPeerConnection.prototype,"onaddstream",{get:function(){return this._onaddstream},set:function(e){var t=this;this._onaddstream&&(this.removeEventListener("addstream",this._onaddstream),this.removeEventListener("track",this._onaddstreampoly)),this.addEventListener("addstream",this._onaddstream=e),this.addEventListener("track",this._onaddstreampoly=function(e){e.streams.forEach(function(e){if(t._remoteStreams||(t._remoteStreams=[]),!(t._remoteStreams.indexOf(e)>=0)){t._remoteStreams.push(e);var r=new Event("addstream");r.stream=e,t.dispatchEvent(r)}})})}}))},shimCallbacksAPI:function(e){if("object"==typeof e&&e.RTCPeerConnection){var t=e.RTCPeerConnection.prototype,r=t.createOffer,n=t.createAnswer,i=t.setLocalDescription,a=t.setRemoteDescription,o=t.addIceCandidate;t.createOffer=function(e,t){var n=arguments.length>=2?arguments[2]:arguments[0],i=r.apply(this,[n]);return t?(i.then(e,t),Promise.resolve()):i},t.createAnswer=function(e,t){var r=arguments.length>=2?arguments[2]:arguments[0],i=n.apply(this,[r]);return t?(i.then(e,t),Promise.resolve()):i};var s=function(e,t,r){var n=i.apply(this,[e]);return r?(n.then(t,r),Promise.resolve()):n};t.setLocalDescription=s,s=function(e,t,r){var n=a.apply(this,[e]);return r?(n.then(t,r),Promise.resolve()):n},t.setRemoteDescription=s,s=function(e,t,r){var n=o.apply(this,[e]);return r?(n.then(t,r),Promise.resolve()):n},t.addIceCandidate=s}},shimGetUserMedia:function(e){var t=e&&e.navigator;t.getUserMedia||(t.webkitGetUserMedia?t.getUserMedia=t.webkitGetUserMedia.bind(t):t.mediaDevices&&t.mediaDevices.getUserMedia&&(t.getUserMedia=function(e,r,n){t.mediaDevices.getUserMedia(e).then(r,n)}.bind(t)))},shimRTCIceServerUrls:function(e){var t=e.RTCPeerConnection;e.RTCPeerConnection=function(e,r){if(e&&e.iceServers){for(var i=[],a=0;a<e.iceServers.length;a++){var o=e.iceServers[a];!o.hasOwnProperty("urls")&&o.hasOwnProperty("url")?(n.deprecated("RTCIceServer.url","RTCIceServer.urls"),o=JSON.parse(JSON.stringify(o)),o.urls=o.url,delete o.url,i.push(o)):i.push(e.iceServers[a])}e.iceServers=i}return new t(e,r)},e.RTCPeerConnection.prototype=t.prototype,"generateCertificate"in e.RTCPeerConnection&&Object.defineProperty(e.RTCPeerConnection,"generateCertificate",{get:function(){return t.generateCertificate}})},shimTrackEventTransceiver:function(e){"object"==typeof e&&e.RTCPeerConnection&&"receiver"in e.RTCTrackEvent.prototype&&!e.RTCTransceiver&&Object.defineProperty(e.RTCTrackEvent.prototype,"transceiver",{get:function(){return{receiver:this.receiver}}})},shimCreateOfferLegacy:function(e){var t=e.RTCPeerConnection.prototype.createOffer;e.RTCPeerConnection.prototype.createOffer=function(e){var r=this;if(e){void 0!==e.offerToReceiveAudio&&(e.offerToReceiveAudio=!!e.offerToReceiveAudio);var n=r.getTransceivers().find(function(e){return e.sender.track&&"audio"===e.sender.track.kind});!1===e.offerToReceiveAudio&&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.offerToReceiveAudio||n||r.addTransceiver("audio"),void 0!==e.offerToReceiveAudio&&(e.offerToReceiveVideo=!!e.offerToReceiveVideo);var i=r.getTransceivers().find(function(e){return e.sender.track&&"video"===e.sender.track.kind});!1===e.offerToReceiveVideo&&i?"sendrecv"===i.direction?i.setDirection("sendonly"):"recvonly"===i.direction&&i.setDirection("inactive"):!0!==e.offerToReceiveVideo||i||r.addTransceiver("video")}return t.apply(r,arguments)}}}},{"../utils":13}],13:[function(e,t,r){"use strict";function n(e,t,r){var n=e.match(t);return n&&n.length>=r&&parseInt(n[r],10)}function i(e,t,r){if(e.RTCPeerConnection){var n=e.RTCPeerConnection.prototype,i=n.addEventListener;n.addEventListener=function(e,n){if(e!==t)return i.apply(this,arguments);var a=function(e){n(r(e))};return this._eventMap=this._eventMap||{},this._eventMap[n]=a,i.apply(this,[e,a])};var a=n.removeEventListener;n.removeEventListener=function(e,r){if(e!==t||!this._eventMap||!this._eventMap[r])return a.apply(this,arguments);var n=this._eventMap[r];return delete this._eventMap[r],a.apply(this,[e,n])},Object.defineProperty(n,"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)}})}}var a=!0,o=!0;t.exports={extractVersion:n,wrapPeerConnectionEvent:i,disableLog:function(e){return"boolean"!=typeof e?new Error("Argument type: "+typeof e+". Please use a boolean."):(a=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."):(o=!e,"adapter.js deprecation warnings "+(e?"disabled":"enabled"))},log:function(){if("object"==typeof window){if(a)return;"undefined"!=typeof console&&"function"==typeof console.log&&console.log.apply(console,arguments)}},deprecated:function(e,t){o&&console.warn(e+" is deprecated, please use "+t+" instead.")},detectBrowser:function(e){var t=e&&e.navigator,r={};if(r.browser=null,r.version=null,void 0===e||!e.navigator)return r.browser="Not a browser.",r;if(t.mozGetUserMedia)r.browser="firefox",r.version=n(t.userAgent,/Firefox\/(\d+)\./,1);else if(t.webkitGetUserMedia)r.browser="chrome",r.version=n(t.userAgent,/Chrom(e|ium)\/(\d+)\./,2);else if(t.mediaDevices&&t.userAgent.match(/Edge\/(\d+).(\d+)$/))r.browser="edge",r.version=n(t.userAgent,/Edge\/(\d+).(\d+)$/,2);else{if(!e.RTCPeerConnection||!t.userAgent.match(/AppleWebKit\/(\d+)\./))return r.browser="Not a supported browser.",r;r.browser="safari",r.version=n(t.userAgent,/AppleWebKit\/(\d+)\./,1)}return r}}},{}]},{},[3])(3)});