/*!
 * The MIT License (MIT)
 * 
 * Copyright (c) 2015-2016 Webcom
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 * 
 * The externally maintained libraries used by Reach are:
 * 
 * - webrtc-adpater, licensed as follows:
 * 
 *     > Copyright (c) 2014, The WebRTC project authors. All rights reserved.
 *     >
 *     > Redistribution and use in source and binary forms, with or without
 *     > modification, are permitted provided that the following conditions are
 *     > met:
 *     >
 *     >  * Redistributions of source code must retain the above copyright
 *     >    notice, this list of conditions and the following disclaimer.
 *     >
 *     >  * Redistributions in binary form must reproduce the above copyright
 *     >    notice, this list of conditions and the following disclaimer in
 *     >    the documentation and/or other materials provided with the
 *     >    distribution.
 *     >
 *     >  * Neither the name of Google nor the names of its contributors may
 *     >    be used to endorse or promote products derived from this software
 *     >    without specific prior written permission.
 *     >
 *     >THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *     >"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *     >LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *     >A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 *     >HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *     >SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 *     >LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 *     >DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 *     >THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *     >(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 *     >OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 */
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n=t.constraints[e];n&&(n.deviceId||n.facingMode)&&(t._inputs[e]=k(n,n.facingMode?"facingMode":"deviceId"))}),t.media=e})}},{key:"mute",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:m.default.AUDIO,t=!(arguments.length>1&&void 0!==arguments[1])||arguments[1];y.d("mute",e,t);var n=this.muted.audio,r=this.muted.video,i=void 0;switch(e){case m.default.AUDIO:n=t,i=this.media.getAudioTracks();break;case m.default.VIDEO:case m.default.SCREEN_SHARING:r=t,i=this.media.getVideoTracks();break;case m.default.AUDIO_VIDEO:n=t,r=t,i=this.media.getTracks()}i.forEach(function(e){e.enabled=!t}),this.muted={audio:n,video:r},S.set("_/rooms/"+this.roomId+"/streams/"+this.uid+"/muted",this.muted)}},{key:"unMute",value:function(e){this.mute(e,!1)}},{key:"close",value:function(){if(!~[w.CLOSED,w.CLOSING].indexOf(this.status)){this.status=w.CLOSING;var e="_/rooms/"+this.roomId+"/subscribers/"+this.uid;S.off(e,"child_added"),S.off(e,"child_removed"),S.onDisconnect("_/rooms/"+this.roomId+"/streams/"+this.uid).cancel(),S.onDisconnect("_/rooms/"+this.roomId+"/subscribers/"+this.uid).cancel(),S.remove(e),S.remove("_/rooms/"+this.roomId+"/streams/"+this.uid),this.media=null,this.status=w.CLOSED}return c.default.resolve(this.status)}},{key:"switchCamera",value:function(e){return this._switchDevice(m.default.VIDEO,e)}},{key:"switchMicrophone",value:function(e){return this._switchDevice(m.default.AUDIO,e)}},{key:"_switchDevice",value:function(e,t){var n=this;if(y.d("Local~_switchDevice",e,t),this.media.getTracks().some(function(t){return t.kind===e})){var r=c.default.resolve(t),i=P.indexOf(this._inputs[e]);return r=!t&&~i?c.default.resolve(P[(i+1)%P.length]):~P.indexOf(t)?c.default.resolve(t):T.default.devices().then(function(r){var i=r[e+"input"].map(function(e){return e.deviceId});i.sort();var o=t;if(t&&!i.some(function(e){return e===t}))return c.default.reject(new Error("Unknown "+e+" device"));if(!t&&i.length>1){var a=n._inputs[e]?i.findIndex(function(t){return t===n._inputs[e]},n):0;o=i[++a%i.length]}return o}),r.then(function(t){if(n._inputs[e]!==t){n._inputs[e]=t,n.media.getTracks().forEach(function(e){return e.stop()});var r=(0,d.default)({},n.constraints),i=["facingMode","deviceId"];return~P.indexOf(t)||(i=i.reverse()),O(r[e],i[0],i[1],t),y.d("Local~_switchDevice",e,r),n.updateConstraints(r)}}).then(function(){return n})}return c.default.reject(new Error("Current stream does not contain a "+e+" track"))}},{key:"constraints",set:function(e){var t=this,n=e||b.default.config.constraints,r=T.default.constraints();["audio","video"].forEach(function(e){~t.type.indexOf(e)?n[e]||(n[e]=r[e]):n[e]=!1,(n[e].deviceId||n[e].facingMode)&&(t._inputs[e]=k(n[e],n[e].facingMode?"facingMode":"deviceId"))}),y.d("Local~set#contraints",n),this._constraints=n},get:function(){return this._constraints}},{key:"media",set:function(e){var t=this;if(e){if(!(e instanceof MediaStream))throw new Error("The media MUST be a MediaStream");var n={};e.getTracks().forEach(function(e){e.enabled=!t.muted[e.kind],t._inputs[e.kind]||(n[e.kind]=e.label)}),(0,a.default)(n).length&&T.default.devices().then(function(e){(0,a.default)(n).forEach(function(r){if(e[r+"input"]){var i=e[r+"input"].filter(function(e){return e.label.length&&e.label===n[r]});1!==i.length||t._inputs[r]||(t._inputs[r]=i[0].deviceId),0!==i.length||""!==e[r+"input"][0].label||t._inputs[r]||(t._inputs[r]=e[r+"input"][0].deviceId)}})}),this.node=T.default.attachStream(e,this.container,this.node,0),this.node.onloadeddata=function(){t.isVideoLoaded=!0},this.status=w.CONNECTED,y.d("Local~set media",{mediaStream:e},this.node),this.peerConnections.forEach(function(n){return n.renegotiate(t._media,e)})}else this.media&&!e&&(this.node.srcObject=null,this.container.removeChild(this.node),this.node=null,this.media.getTracks().forEach(function(e){return e.stop()}),this.peerConnections.forEach(function(e){return e.close()}));this._media=e},get:function(){return this._media}}],[{key:"share",value:function(t,n,r,i){if(!b.default.user)return c.default.reject(new Error("Only an authenticated user can share a stream."));var o={from:b.default.user.uid,device:b.default.device,type:n},a=new e((0,d.default)({roomId:t,constraints:i,container:r},o));return y.d("Local~share",{sharedStream:a}),navigator.mediaDevices.getUserMedia(a.constraints).then(function(e){a.media=e}).then(function(){return S.push("_/rooms/"+t+"/streams",o)}).then(function(e){if(a.uid=e.name(),a.isVideoLoaded){var n={height:a.node.videoHeight,width:a.node.videoWidth};e.update(n)}else a.node.onloadeddata=function(){var t={height:a.node.videoHeight,width:a.node.videoWidth};e.update(t)};window.addEventListener("resize",function(){if(null!=a.node){var t={height:a.node.videoHeight,width:a.node.videoWidth};e.update(t)}}),b.default.streams.shared[a.uid]=a,S.onDisconnect("_/rooms/"+t+"/streams/"+a.uid).remove(),S.onDisconnect("_/rooms/"+t+"/subscribers/"+a.uid).remove();var r="_/rooms/"+a.roomId+"/subscribers/"+a.uid,i=function(e){return(0,d.default)({device:e.name()},e.val()||{})};return S.on(r,"child_added",function(e){var t=i(e);y.d("Local~subscribed",t),b.default.peerConnections.offer(a,t).then(function(e){return a.peerConnections.push(e)})},y.e.bind(y)),S.on(r,"child_removed",function(e){var t=i(e);y.d("Local~un-subscribed",t);var n=b.default.peerConnections.close(a.uid,t.device);a.peerConnections=a.peerConnections.filter(function(e){return e!==n})},y.e.bind(y)),y.d("Local~shared",{sharedStream:a}),a})}},{key:"getLocalVideo",value:function(t,n,r,i){if(!b.default.user)return c.default.reject(new Error("Only an authenticated user can share a stream."));var o={from:b.default.user.uid,device:b.default.device,userAgent:b.default.userAgent,type:n},a=new e((0,d.default)({roomId:t,constraints:i,container:r},o));return a.streamMetaData=o,y.d("Local~share",{sharedStream:a}),navigator.mediaDevices.getUserMedia(a.constraints).then(function(e){return a.media=e,a})}},{key:"publish",value:function(e){y.d("Local~publish");var t=e.roomId;return S.push("_/rooms/"+t+"/streams",e.streamMetaData).then(function(n){if(e.uid=n.name(),e.isVideoLoaded){var r={height:e.node.videoHeight,width:e.node.videoWidth};n.update(r)}else e.node.onloadeddata=function(){var t={height:e.node.videoHeight,width:e.node.videoWidth};n.update(t)};window.addEventListener("resize",function(){if(null!=e.node){var t={height:e.node.videoHeight,width:e.node.videoWidth};n.update(t)}}),b.default.streams.shared[e.uid]=e,S.onDisconnect("_/rooms/"+t+"/streams/"+e.uid).remove(),S.onDisconnect("_/rooms/"+t+"/subscribers/"+e.uid).remove();var i="_/rooms/"+e.roomId+"/subscribers/"+e.uid,o=function(e){return(0,d.default)({device:e.name()},e.val()||{})};return S.on(i,"child_added",function(t){var n=o(t);y.d("Local~subscribed",n),b.default.peerConnections.offer(e,n).then(function(t){return e.peerConnections.push(t)})},y.e.bind(y)),S.on(i,"child_removed",function(t){var n=o(t);y.d("Local~un-subscribed",n);var r=b.default.peerConnections.close(e.uid,n.device);e.peerConnections=e.peerConnections.filter(function(e){return e!==r})},y.e.bind(y)),y.d("Local~shared",{sharedStream:e}),e})}}]),e}();t.default=R},function(e,t,n){"use strict";function r(e){return e&&e.__esModule?e:{default:e}}Object.defineProperty(t,"__esModule",{value:!0});var i=n(0),o=r(i),a=n(1),s=r(a),c=n(62),u=r(c),d=function(){function e(){(0,o.default)(this,e),this.shared={},this.remote={}}return(0,s.default)(e,[{key:"getRemote",value:function(e){var t=this.remote[e.uid];return t?t.update(e):this.remote[e.uid]=t=new u.default(e),t}},{key:"getShared",value:function(e){return this.shared[e.uid]}}]),e}();t.default=d},function(e,t,n){"use strict";function r(e){if(e&&e.__esModule)return e;var t={};if(null!=e)for(var n in e)Object.prototype.hasOwnProperty.call(e,n)&&(t[n]=e[n]);return t.default=e,t}function i(e){return e&&e.__esModule?e:{default:e}}Object.defineProperty(t,"__esModule",{value:!0});var o=n(8),a=i(o),s=n(101),c=i(s),u=n(0),d=i(u),f=n(1),l=i(f),p=n(6),h=i(p),v=n(5),m=r(v),g=n(29),y=i(g),C=n(59),b=i(C),_=n(7),S=r(_),E=n(20);n(146);var T={DtlsSrtpKeyAgreement:!0},w=function(e){return{OfferToReceiveAudio:e,OfferToReceiveVideo:e}},P="disconnected",k="connected",O="completed",R="checking",x="closed",D="failed",M=function(e){return e.toJSON&&"function"==typeof e.toJSON?e.toJSON():e},j=function(){function e(t,n,r,i){var o=this;(0,d.default)(this,e),this.stackId=t,this.streamId=n,this.remote=r,this.publish=i,this._localPath="_/webrtc/"+this.stackId+"/"+this.streamId+"/"+h.default.device,this._remotePath="_/webrtc/"+this.stackId+"/"+this.streamId+"/"+this.remote.device,this.negotiated=!1,this.node=null,this.container=null,this.pc=new RTCPeerConnection({iceServers:h.default.config.iceServers},{optional:[T],mandatory:w(!i)}),this.pc.onicecandidate=function(e){!o.negotiated&&e.candidate&&(m.d("PeerConnection~onicecandidate",e.candidate),S.push(o._localPath+"/ice",M(e.candidate)))},this.pc.oniceconnectionstatechange=function(){switch(m.d("PeerConnection~oniceconnectionstatechange",o.pc),o.pc.iceConnectionState){case R:break;case k:o._attachStream(),o._remoteICECandidates(!1);break;case O:o._remoteICECandidates(!1);break;case P:case D:m.e("PeerConnection~stateDisconnected","Disconnect PeerConnection");break;case x:m.d("PeerConnection~stateclosed","Close PeerConnection"),o.close()}o.negotiated=o.negotiated||o.isConnected},this.pc.onicegatheringstatechange=function(){m.d("PeerConnection~onicegatheringstatechange",o.pc.iceGatheringState)},this._status=E.OPENED}return(0,l.default)(e,[{key:"_remoteICECandidates",value:function(e){var t=this,n=this._remotePath+"/ice";e?S.on(n,"child_added",function(e){var n=e.val();m.d("PeerConnection~addIceCandidate",n),t.pc.addIceCandidate(new RTCIceCandidate(n))}):S.off(n,"child_added")}},{key:"_attachStream",value:function(){this.remoteStream&&this.isConnected&&(this.node=y.default.attachStream(this.remoteStream,this.container,this.node),this.node.muted=!1)}},{key:"answer",value:function(e){var t=this;return m.i("PeerConnection~answer",{htmlElement:e,peerConnection:this}),this.container=e,(0,c.default)(RTCPeerConnection.prototype,"ontrack")?this.pc.ontrack=function(e){m.d("PeerConnection~ontrack",e.streams[0]),t.remoteStream=e.streams[0]}:this.pc.onaddstream=function(e){m.d("PeerConnection~onaddstream",e.stream),t.remoteStream=e.stream},S.on(this._remotePath+"/sdp","value",function(e){var n=e.val();null!=n&&t.pc.setRemoteDescription(n).then(function(){return m.d("PeerConnection~answer#remoteDescription",t.pc.remoteDescription.sdp)}).then(function(){return/^offer$/.test(t.pc.remoteDescription.type)?t.pc.createAnswer():a.default.reject(new Error("SDP is not an offer"))}).then(function(e){return t._setPreferredCodecs(e)}).then(function(e){return t.pc.setLocalDescription(e)}).then(function(){m.d("PeerConnection~answer#localSDP",t.pc.localDescription.sdp),t._remoteICECandidates(!0)}).then(function(){return t._sendSdpToRemote()}).catch(m.r("PeerConnection~answser#error"))}),a.default.resolve(this)}},{key:"offer",value:function(e){var t=this;m.i("PeerConnection~offer",{stream:e,peerConnection:this});var n=void 0;return new a.default(function(r,i){t.pc.onnegotiationneeded=function(){m.d("PeerConnection~onnegotiationneeded"),n&&(clearTimeout(n),n=null),n=setTimeout(function(){n=null,t._sendOffer().then(function(){r(t)}).catch(function(e){m.d("PeerConnection~offer",e),i(e)})},20)},S.on(t._remotePath+"/sdp","value",function(e){var n=e.val();null!=n&&t.pc.setRemoteDescription(n).then(function(){m.d("PeerConnection~offer#remoteDescription",t.pc.remoteDescription.sdp),t._remoteICECandidates(!0)}).catch(m.e.bind(m,"PeerConnection~offer#remoteDescription"))}),t._alterStream(e,"add")})}},{key:"_sendSdpToRemote",value:function(){var e=this,t=this.remote.to?this.remote.to:this.remote.from;b.default.get(t,this.remote.device).then(function(t){var n=e.pc.localDescription.sdp,r=n;-1!==navigator.userAgent.indexOf("Chrome")&&-1!==navigator.userAgent.indexOf("Android")&&-1!==t.userAgent.indexOf("Safari")&&(r=r.replace("42001f","42e01f")),-1!==navigator.userAgent.indexOf("Safari")&&-1!==t.userAgent.indexOf("Chrome")&&-1!==t.userAgent.indexOf("Android")&&(r=r.replace("42e01f","42001f")),m.d("PeerConnection~_sendSdpToRemote#SDP sent to remote",r);var i={sdp:r,type:e.pc.localDescription.type};S.update(e._localPath+"/sdp",M(i))})}},{key:"_sendOffer",value:function(){var e=this;return m.d("PeerConnection~_sendOffer"),this.pc.createOffer().then(function(t){return e._setPreferredCodecs(t)}).then(function(t){return e.pc.setLocalDescription(t)}).then(function(){return m.d("PeerConnection~_sendOffer#localDescription",e.pc.localDescription.sdp)}).then(function(){return e._sendSdpToRemote()})}},{key:"_alterStream",value:function(e,t){var n=this;(0,c.default)(RTCPeerConnection.prototype,t+"Track")?"add"===t?e.getTracks().forEach(function(r){return n.pc[t+"Track"](r,e)},this):this.pc.getSenders().forEach(function(e){return n.pc[t+"Track"](e)},this):this.pc[t+"Stream"](e)}},{key:"renegotiate",value:function(e,t){m.d("PeerConnection~renegotiate"),(0,c.default)(RTCPeerConnection.prototype,"getSenders")&&"RTCRtpSender"in window&&(0,c.default)(RTCRtpSender.prototype,"replaceTrack")?(this.pc.getSenders().forEach(function(e){var n=void 0;switch(e.track.kind){case"audio":n=t.getAudioTracks();break;case"video":n=t.getVideoTracks();break;default:n=[]}n.length&&e.replaceTrack(n[0])}),this._sendOffer().catch(function(e){m.d("PeerConnection~renegotiate",e)})):(this._alterStream(e,"remove"),this._alterStream(t,"add"))}},{key:"close",value:function(){var e=this;this._status===E.OPENED&&(this._status=E.CLOSING,this.node&&(this.node.stop&&this.node.stop(),this.node.srcObject=null,this.container.removeChild(this.node),this.node=null),this._remoteICECandidates(!1),S.off(this._remotePath+"/sdp","value"),S.remove(this._localPath),this.pc&&"closed"!==this.pc.signalingState?(this.pc.onsignalingstatechange=function(){"closed"!==e.pc.signalingState&&(e._status=E.CLOSED)},this.pc.close()):this._status=E.CLOSED)}},{key:"_setPreferredCodecs",value:function(e){if(h.default.config.preferredVideoCodec||h.default.config.preferredAudioCodec){m.d("PeerConnection~_setPreferredCodecs",{description:e,config:h.default.config});var t=e.sdp.split(/\r?\n/),n={audio:[],video:[]},r=null;t.forEach(function(e,t){if(/^m=/.test(e)){var i=/^m=(\w+)\s[0-9\/]+\s[A-Za-z0-9\/]+\s([0-9\s]+)/.exec(e);r={fmt:i[2].split(/\s/),index:t,codecs:[]},n[i[1]].push(r)}else if(r&&/^a=rtpmap:/.test(e)){var o=/^a=rtpmap:(\d+)\s([a-zA-Z0-9\-\/]+)/.exec(e);o&&r.codecs.push({id:o[1],name:o[2],index:t})}}),m.d("PeerConnection~_setPreferredCodecs",n);var i=!1,o=function(e,n){e.forEach(function(e){var r=e.codecs.find(function(e){return n.test(e.name)});if(r){var o=[r.id].concat(e.fmt.filter(function(e){return e!==r.id}));t[e.index]=t[e.index].replace(e.fmt.join(" "),o.join(" ")),i=!0}})};if(h.default.config.preferredVideoCodec&&o(n.video,h.default.config.preferredVideoCodec),h.default.config.preferredAudioCodec&&o(n.audio,h.default.config.preferredAudioCodec),i)return m.d("PeerConnection~_setPreferredCodecs",t.join("\r\n")),{sdp:t.join("\r\n"),type:e.type}}return e}},{key:"remoteStream",set:function(e){this._remoteStream=e,this._attachStream()},get:function(){return this._remoteStream}},{key:"isConnected",get:function(){return this.pc&&!!~[k,O,"other"].indexOf(this.pc.iceConnectionState)}}]),e}();t.default=j},function(e,t,n){"use strict";function r(e){if(e&&e.__esModule)return e;var t={};if(null!=e)for(var n in e)Object.prototype.hasOwnProperty.call(e,n)&&(t[n]=e[n]);return t.default=e,t}function i(e){return e&&e.__esModule?e:{default:e}}Object.defineProperty(t,"__esModule",{value:!0});var o=n(8),a=i(o),s=n(0),c=i(s),u=n(1),d=i(u),f=n(96),l=i(f),p=n(6),h=i(p),v=n(5),m=r(v),g=n(7),y=r(g),C=function(e,t){return e.localeCompare(t,"en-us")>0?e+"-"+t:t+"-"+e},b=function(){function e(){(0,c.default)(this,e),this.stacks={}}return(0,d.default)(e,[{key:"getPeerConnection",value:function(e,t,n){var r=this;if(!h.default.user)return a.default.reject(new Error("Only an authenticated user can get a PeerConnection's object."));var i=C(t.device,h.default.device);if(this.stacks[i]&&this.stacks[i][e.uid])return a.default.resolve(this.stacks[i][e.uid]);this.stacks[i]||(this.stacks[i]={});var o={};return o[h.default.user.uid]=!0,o[t.from||t.to]=!0,y.update("_/webrtc/"+i,o).then(function(){return new l.default(i,e.uid,t,n)}).then(function(t){return 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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?" 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r={ssrc:c,codecPayloadType:parseInt(e.parameters.apt,10),rtx:{ssrc:t}};n.push(r),o&&(r=JSON.parse(JSON.stringify(r)),r.fec={ssrc:t,mechanism:a?"red+ulpfec":"red"},n.push(r))}}),0===n.length&&c&&n.push({ssrc:c});var d=r.matchPrefix(e,"b=");return d.length&&(d=0===d[0].indexOf("b=TIAS:")?parseInt(d[0].substr(7),10):0===d[0].indexOf("b=AS:")?1e3*parseInt(d[0].substr(5),10)*.95-16e3:void 0,n.forEach(function(e){e.maxBitrate=d})),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 t=n[0].substr(7).split(" "),{stream:t[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?(t=i[0].value.split(" "),{stream:t[0],track:t[1]}):void 0},r.generateSessionId=function(){return Math.random().toString().substr(2,21)},r.writeSessionBoilerplate=function(e,t){var n=void 0!==t?t:2;return"v=0\r\no=thisisadapterortc "+(e||r.generateSessionId())+" "+n+" 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),n=t[0].split(" ");return{kind:n[0].substr(2),port:parseInt(n[1],10),protocol:n[2],fmt:n.slice(3).join(" ")}},e.exports=r},function(e,t,n){"use strict";(function(t){var r=n(171);e.exports=r({window:t.window})}).call(t,n(90))},function(e,t,n){"use strict";e.exports=function(e,t){var r=e&&e.window,i={shimChrome:!0,shimFirefox:!0,shimEdge:!0,shimSafari:!0};for(var o in t)hasOwnProperty.call(t,o)&&(i[o]=t[o]);var a=n(19),s=a.log,c=a.detectBrowser(r),u={browserDetails:c,extractVersion:a.extractVersion,disableLog:a.disableLog,disableWarnings:a.disableWarnings},d=n(172)||null,f=n(174)||null,l=n(177)||null,p=n(179)||null;switch(c.browser){case"chrome":if(!d||!d.shimPeerConnection||!i.shimChrome)return s("Chrome shim is not included in this adapter release."),u;s("adapter.js shimming chrome."),u.browserShim=d,d.shimGetUserMedia(r),d.shimMediaStream(r),a.shimCreateObjectURL(r),d.shimSourceObject(r),d.shimPeerConnection(r),d.shimOnTrack(r),d.shimAddTrackRemoveTrack(r),d.shimGetSendersWithDtmf(r);break;case"firefox":if(!l||!l.shimPeerConnection||!i.shimFirefox)return s("Firefox shim is not included in this adapter release."),u;s("adapter.js shimming 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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)}});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.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.streams=[t.stream],n.dispatchEvent(o)})},n.addEventListener("addstream",n._ontrackpoly)),t.apply(n,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 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,[t._streams[e.id]||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}})}},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;if(this._srcObject=e,this.src&&t.revokeObjectURL(this.src),!e)return void(this.src="");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)})}}))},shimAddTrackRemoveTrack:function(e){if(!e.RTCPeerConnection.prototype.addTrack){var t=e.RTCPeerConnection.prototype.getLocalStreams;e.RTCPeerConnection.prototype.getLocalStreams=function(){var e=this,n=t.apply(this);return e._reverseStreams=e._reverseStreams||{},n.map(function(t){return e._reverseStreams[t.id]})};var n=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 i=new e.MediaStream(t.getTracks());r._streams[t.id]=i,r._reverseStreams[i.id]=t,t=i}n.apply(r,[t])};var r=e.RTCPeerConnection.prototype.removeStream;e.RTCPeerConnection.prototype.removeStream=function(e){var t=this;t._streams=t._streams||{},t._reverseStreams=t._reverseStreams||{},r.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");if(r.getSenders().find(function(e){return e.track===t}))throw new DOMException("Track already exists.","InvalidAccessError");r._streams=r._streams||{},r._reverseStreams=r._reverseStreams||{};var o=r._streams[n.id];if(o)o.addTrack(t),r.dispatchEvent(new Event("negotiationneeded"));else{var a=new e.MediaStream([t]);r._streams[n.id]=a,r._reverseStreams[a.id]=n,r.addStream(a)}return r.getSenders().find(function(e){return e.track===t})},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 n;Object.keys(t._streams).forEach(function(r){t._streams[r].getTracks().find(function(t){return e.track===t})&&(n=t._streams[r])}),n&&(1===n.getTracks().length?t.removeStream(n):n.removeTrack(e.track),t.dispatchEvent(new Event("negotiationneeded")))}}},shimPeerConnection:function(e){var t=r.detectBrowser(e);if(e.RTCPeerConnection){var n=e.RTCPeerConnection;e.RTCPeerConnection=function(e,t){if(e&&e.iceServers){for(var i=[],o=0;o<e.iceServers.length;o++){var a=e.iceServers[o];!a.hasOwnProperty("urls")&&a.hasOwnProperty("url")?(r.deprecated("RTCIceServer.url","RTCIceServer.urls"),a=JSON.parse(JSON.stringify(a)),a.urls=a.url,i.push(a)):i.push(e.iceServers[o])}e.iceServers=i}return new n(e,t)},e.RTCPeerConnection.prototype=n.prototype,Object.defineProperty(e.RTCPeerConnection,"generateCertificate",{get:function(){return n.generateCertificate}})}else 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}});var o=e.RTCPeerConnection.prototype.getStats;e.RTCPeerConnection.prototype.getStats=function(e,t,n){var r=this,i=arguments;if(arguments.length>0&&"function"==typeof e)return o.apply(this,arguments);if(0===o.length&&(0===arguments.length||"function"!=typeof arguments[0]))return o.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){i[1](s(a(e)))};return o.apply(this,[c,arguments[0]])}return new Promise(function(e,t){o.apply(r,[function(t){e(s(a(t)))},t])}).then(t,n)},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 a=e.RTCPeerConnection.prototype.addIceCandidate;e.RTCPeerConnection.prototype.addIceCandidate=function(){return arguments[0]?a.apply(this,arguments):(arguments[1]&&arguments[1].apply(null),Promise.resolve())}}};e.exports={shimMediaStream:o.shimMediaStream,shimOnTrack:o.shimOnTrack,shimAddTrackRemoveTrack:o.shimAddTrackRemoveTrack,shimGetSendersWithDtmf:o.shimGetSendersWithDtmf,shimSourceObject:o.shimSourceObject,shimPeerConnection:o.shimPeerConnection,shimGetUserMedia:n(173)}},function(e,t,n){"use strict";var r=n(19),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={},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((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])};e=JSON.parse(JSON.stringify(e)),a(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=t.version<61;if(s&&("user"===s.exact||"environment"===s.exact||"user"===s.ideal||"environment"===s.ideal)&&(!n.mediaDevices.getSupportedConstraints||!n.mediaDevices.getSupportedConstraints().facingMode||c)){delete e.video.facingMode;var u;if("environment"===s.exact||"environment"===s.ideal?u=["back","rear"]:"user"!==s.exact&&"user"!==s.ideal||(u=["front"]),u)return n.mediaDevices.enumerateDevices().then(function(t){t=t.filter(function(e){return"videoinput"===e.kind});var n=t.find(function(e){return u.some(function(t){return-1!==e.label.toLowerCase().indexOf(t)})});return!n&&t.length&&-1!==u.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{name:{PermissionDeniedError:"NotAllowedError",InvalidStateError:"NotReadableError",DevicesNotFoundError:"NotFoundError",ConstraintNotSatisfiedError:"OverconstrainedError",TrackStartError:"NotReadableError",MediaDeviceFailedDueToShutdown:"NotReadableError",MediaDeviceKillSwitchOn:"NotReadableError"}[e.name]||e.name,message:e.message,constraint:e.constraintName,toString:function(){return this.name+(this.message&&": ")+this.message}}},c=function(e,t,r){a(e,function(e){n.webkitGetUserMedia(e,t,function(e){r(s(e))})})};n.getUserMedia=c;var u=function(e){return new Promise(function(t,r){n.getUserMedia(e,t,r)})};if(n.mediaDevices||(n.mediaDevices={getUserMedia:u,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 u(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(19),i=n(176);e.exports={shimGetUserMedia:n(175),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.RTCPeerConnection=i(e,t.version)},shimReplaceTrack:function(e){!e.RTCRtpSender||"replaceTrack"in e.RTCRtpSender.prototype||(e.RTCRtpSender.prototype.replaceTrack=e.RTCRtpSender.prototype.setTrack)}}},function(e,t,n){"use strict";e.exports=function(e){var t=e&&e.navigator,n=function(e){return{name:{PermissionDeniedError:"NotAllowedError"}[e.name]||e.name,message:e.message,constraint:e.constraint,toString:function(){return this.name}}},r=t.mediaDevices.getUserMedia.bind(t.mediaDevices);t.mediaDevices.getUserMedia=function(e){return r(e).catch(function(e){return Promise.reject(n(e))})}}},function(e,t,n){"use strict";function r(e){var t=e.filter(function(e){return"audio"===e.kind}),n=e.filter(function(e){return"video"===e.kind});for(e=[];t.length||n.length;)t.length&&e.push(t.shift()),n.length&&e.push(n.shift());return e}function i(e,t){var n=!1;return e=JSON.parse(JSON.stringify(e)),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?0===e.indexOf("stun:")&&t>=14393:(n=!0,!0)}),delete e.url,e.urls=i?r[0]:r,!!r.length}return!1})}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)),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)}var s=n(169);e.exports=function(e,t){var n=function(n){var r=this,o=document.createDocumentFragment();if(["addEventListener","removeEventListener","dispatchEvent"].forEach(function(e){r[e]=o[e].bind(o)}),this.needNegotiation=!1,this.onicecandidate=null,this.onaddstream=null,this.ontrack=null,this.onremovestream=null,this.onsignalingstatechange=null,this.oniceconnectionstatechange=null,this.onicegatheringstatechange=null,this.onnegotiationneeded=null,this.ondatachannel=null,this.canTrickleIceCandidates=null,this.localStreams=[],this.remoteStreams=[],this.getLocalStreams=function(){return r.localStreams},this.getRemoteStreams=function(){return r.remoteStreams},this.localDescription=new e.RTCSessionDescription({type:"",sdp:""}),this.remoteDescription=new e.RTCSessionDescription({type:"",sdp:""}),this.signalingState="stable",this.iceConnectionState="new",this.iceGatheringState="new",this.iceOptions={gatherPolicy:"all",iceServers:[]},n&&n.iceTransportPolicy)switch(n.iceTransportPolicy){case"all":case"relay":this.iceOptions.gatherPolicy=n.iceTransportPolicy}this.usingBundle=n&&"max-bundle"===n.bundlePolicy,n&&n.iceServers&&(this.iceOptions.iceServers=i(n.iceServers,t)),this._config=n||{},this.transceivers=[],this._localIceCandidatesBuffer=[],this._sdpSessionId=s.generateSessionId()};return n.prototype._emitGatheringStateChange=function(){var e=new Event("icegatheringstatechange");this.dispatchEvent(e),null!==this.onicegatheringstatechange&&this.onicegatheringstatechange(e)},n.prototype._emitBufferedCandidates=function(){var e=this,t=s.splitSections(e.localDescription.sdp);this._localIceCandidatesBuffer.forEach(function(n){if(n.candidate&&0!==Object.keys(n.candidate).length)t[n.candidate.sdpMLineIndex+1]+="a="+n.candidate.candidate+"\r\n";else for(var r=1;r<t.length;r++)-1===t[r].indexOf("\r\na=end-of-candidates\r\n")&&(t[r]+="a=end-of-candidates\r\n");if(e.localDescription.sdp=t.join(""),e.dispatchEvent(n),null!==e.onicecandidate&&e.onicecandidate(n),!n.candidate&&"complete"!==e.iceGatheringState){e.transceivers.every(function(e){return e.iceGatherer&&"completed"===e.iceGatherer.state})&&"complete"!==e.iceGatheringStateChange&&(e.iceGatheringState="complete",e._emitGatheringStateChange())}}),this._localIceCandidatesBuffer=[]},n.prototype.getConfiguration=function(){return this._config},n.prototype._createTransceiver=function(e){var t=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,wantReceive:!0};if(this.usingBundle&&t)n.iceTransport=this.transceivers[0].iceTransport,n.dtlsTransport=this.transceivers[0].dtlsTransport;else{var r=this._createIceAndDtlsTransports();n.iceTransport=r.iceTransport,n.dtlsTransport=r.dtlsTransport}return this.transceivers.push(n),n},n.prototype.addTrack=function(t,n){for(var r,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)),r.track=t,r.stream=n,r.rtpSender=new e.RTCRtpSender(t,r.dtlsTransport),this._maybeFireNegotiationNeeded(),r.rtpSender},n.prototype.addStream=function(e){var n=this;if(t>=15025)this.localStreams.push(e),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)}),this.localStreams.push(r)}this._maybeFireNegotiationNeeded()},n.prototype.removeStream=function(e){var t=this.localStreams.indexOf(e);t>-1&&(this.localStreams.splice(t,1),this._maybeFireNegotiationNeeded())},n.prototype.getSenders=function(){return this.transceivers.filter(function(e){return!!e.rtpSender}).map(function(e){return e.rtpSender})},n.prototype.getReceivers=function(){return this.transceivers.filter(function(e){return!!e.rtpReceiver}).map(function(e){return e.rtpReceiver})},n.prototype._createIceGatherer=function(t,n){var r=this,i=new e.RTCIceGatherer(r.iceOptions);return i.onlocalcandidate=function(e){var o=new Event("icecandidate");o.candidate={sdpMid:t,sdpMLineIndex:n};var a=e.candidate,c=!a||0===Object.keys(a).length;c?void 0===i.state&&(i.state="completed"):(a.component=1,o.candidate.candidate=s.writeCandidate(a));var u=s.splitSections(r.localDescription.sdp);u[o.candidate.sdpMLineIndex+1]+=c?"a=end-of-candidates\r\n":"a="+o.candidate.candidate+"\r\n",r.localDescription.sdp=u.join("");var d=r._pendingOffer?r._pendingOffer:r.transceivers,f=d.every(function(e){return e.iceGatherer&&"completed"===e.iceGatherer.state});switch(r.iceGatheringState){case"new":c||r._localIceCandidatesBuffer.push(o),c&&f&&r._localIceCandidatesBuffer.push(new Event("icecandidate"));break;case"gathering":r._emitBufferedCandidates(),c||(r.dispatchEvent(o),null!==r.onicecandidate&&r.onicecandidate(o)),f&&(r.dispatchEvent(new Event("icecandidate")),null!==r.onicecandidate&&r.onicecandidate(new Event("icecandidate")),r.iceGatheringState="complete",r._emitGatheringStateChange())}},i},n.prototype._createIceAndDtlsTransports=function(){var t=this,n=new e.RTCIceTransport(null);n.onicestatechange=function(){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}},n.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)},n.prototype._transceive=function(e,n,r){var i=o(e.localCapabilities,e.remoteCapabilities);n&&e.rtpSender&&(i.encodings=e.sendEncodingParameters,i.rtcp={cname:s.localCName,compound:e.rtcpParameters.compound},e.recvEncodingParameters.length&&(i.rtcp.ssrc=e.recvEncodingParameters[0].ssrc),e.rtpSender.send(i)),r&&e.rtpReceiver&&("video"===e.kind&&e.recvEncodingParameters&&t<15019&&e.recvEncodingParameters.forEach(function(e){delete e.rtx}),i.encodings=e.recvEncodingParameters,i.rtcp={cname:e.rtcpParameters.cname,compound:e.rtcpParameters.compound},e.sendEncodingParameters.length&&(i.rtcp.ssrc=e.sendEncodingParameters[0].ssrc),e.rtpReceiver.receive(i))},n.prototype.setLocalDescription=function(t){var n=this;if(!a("setLocalDescription",t.type,this.signalingState)){var r=new Error("Can not set local "+t.type+" in state "+this.signalingState);return r.name="InvalidStateError",arguments.length>2&&"function"==typeof arguments[2]&&e.setTimeout(arguments[2],0,r),Promise.reject(r)}var i,c;if("offer"===t.type)this._pendingOffer&&(i=s.splitSections(t.sdp),c=i.shift(),i.forEach(function(e,t){var r=s.parseRtpParameters(e);n._pendingOffer[t].localCapabilities=r}),this.transceivers=this._pendingOffer,delete this._pendingOffer);else if("answer"===t.type){i=s.splitSections(n.remoteDescription.sdp),c=i.shift();var u=s.matchPrefix(c,"a=ice-lite").length>0;i.forEach(function(e,t){var r=n.transceivers[t],i=r.iceGatherer,a=r.iceTransport,d=r.dtlsTransport,f=r.localCapabilities,l=r.remoteCapabilities;if(!s.isRejected(e)&&!r.isDatachannel){var p=s.getIceParameters(e,c),h=s.getDtlsParameters(e,c);u&&(h.role="server"),n.usingBundle&&0!==t||(a.start(i,p,u?"controlling":"controlled"),d.start(h));var v=o(f,l);n._transceive(r,v.codecs.length>0,!1)}})}switch(this.localDescription={type:t.type,sdp:t.sdp},t.type){case"offer":this._updateSignalingState("have-local-offer");break;case"answer":this._updateSignalingState("stable");break;default:throw new TypeError('unsupported type "'+t.type+'"')}var d=arguments.length>1&&"function"==typeof arguments[1];if(d){var f=arguments[1];e.setTimeout(function(){f(),"new"===n.iceGatheringState&&(n.iceGatheringState="gathering",n._emitGatheringStateChange()),n._emitBufferedCandidates()},0)}var l=Promise.resolve();return l.then(function(){d||("new"===n.iceGatheringState&&(n.iceGatheringState="gathering",n._emitGatheringStateChange()),e.setTimeout(n._emitBufferedCandidates.bind(n),500))}),l},n.prototype.setRemoteDescription=function(n){var r=this;if(!a("setRemoteDescription",n.type,this.signalingState)){var i=new Error("Can not set remote "+n.type+" in state "+this.signalingState);return i.name="InvalidStateError",arguments.length>2&&"function"==typeof arguments[2]&&e.setTimeout(arguments[2],0,i),Promise.reject(i)}var o={},c=[],u=s.splitSections(n.sdp),d=u.shift(),f=s.matchPrefix(d,"a=ice-lite").length>0,l=s.matchPrefix(d,"a=group:BUNDLE ").length>0;this.usingBundle=l;var p=s.matchPrefix(d,"a=ice-options:")[0];switch(this.canTrickleIceCandidates=!!p&&p.substr(14).split(" ").indexOf("trickle")>=0,u.forEach(function(i,a){var u=s.splitLines(i),p=s.getKind(i),h=s.isRejected(i),v=u[0].substr(2).split(" ")[2],m=s.getDirection(i,d),g=s.parseMsid(i),y=s.getMid(i)||s.generateIdentifier();if("application"===p&&"DTLS/SCTP"===v)return void(r.transceivers[a]={mid:y,isDatachannel:!0});var C,b,_,S,E,T,w,P,k,O,R,x=s.parseRtpParameters(i);h||(O=s.getIceParameters(i,d),R=s.getDtlsParameters(i,d),R.role="client"),w=s.parseRtpEncodingParameters(i);var D=s.parseRtcpParameters(i),M=s.matchPrefix(i,"a=end-of-candidates",d).length>0,j=s.matchPrefix(i,"a=candidate:").map(function(e){return s.parseCandidate(e)}).filter(function(e){return"1"===e.component||1===e.component});("offer"===n.type||"answer"===n.type)&&!h&&l&&a>0&&r.transceivers[a]&&(r._disposeIceAndDtlsTransports(a),r.transceivers[a].iceGatherer=r.transceivers[0].iceGatherer,r.transceivers[a].iceTransport=r.transceivers[0].iceTransport,r.transceivers[a].dtlsTransport=r.transceivers[0].dtlsTransport,r.transceivers[a].rtpSender&&r.transceivers[a].rtpSender.setTransport(r.transceivers[0].dtlsTransport),r.transceivers[a].rtpReceiver&&r.transceivers[a].rtpReceiver.setTransport(r.transceivers[0].dtlsTransport)),"offer"!==n.type||h?"answer"!==n.type||h||(C=r.transceivers[a],b=C.iceGatherer,_=C.iceTransport,S=C.dtlsTransport,E=C.rtpReceiver,T=C.sendEncodingParameters,P=C.localCapabilities,r.transceivers[a].recvEncodingParameters=w,r.transceivers[a].remoteCapabilities=x,r.transceivers[a].rtcpParameters=D,l&&0!==a||((f||M)&&j.length&&_.setRemoteCandidates(j),_.start(b,O,"controlling"),S.start(R)),r._transceive(C,"sendrecv"===m||"recvonly"===m,"sendrecv"===m||"sendonly"===m),!E||"sendrecv"!==m&&"sendonly"!==m?delete C.rtpReceiver:(k=E.track,g?(o[g.stream]||(o[g.stream]=new e.MediaStream),o[g.stream].addTrack(k),c.push([k,E,o[g.stream]])):(o.default||(o.default=new e.MediaStream),o.default.addTrack(k),c.push([k,E,o.default])))):(C=r.transceivers[a]||r._createTransceiver(p),C.mid=y,C.iceGatherer||(C.iceGatherer=l&&a>0?r.transceivers[0].iceGatherer:r._createIceGatherer(y,a)),!M||!j.length||l&&0!==a||C.iceTransport.setRemoteCandidates(j),P=e.RTCRtpReceiver.getCapabilities(p),t<15019&&(P.codecs=P.codecs.filter(function(e){return"rtx"!==e.name})),T=[{ssrc:1001*(2*a+2)}],"sendrecv"!==m&&"sendonly"!==m||(E=new e.RTCRtpReceiver(C.dtlsTransport,p),k=E.track,g?(o[g.stream]||(o[g.stream]=new e.MediaStream,Object.defineProperty(o[g.stream],"id",{get:function(){return g.stream}})),Object.defineProperty(k,"id",{get:function(){return g.track}}),o[g.stream].addTrack(k),c.push([k,E,o[g.stream]])):(o.default||(o.default=new e.MediaStream),o.default.addTrack(k),c.push([k,E,o.default]))),C.localCapabilities=P,C.remoteCapabilities=x,C.rtpReceiver=E,C.rtcpParameters=D,C.sendEncodingParameters=T,C.recvEncodingParameters=w,r._transceive(r.transceivers[a],!1,"sendrecv"===m||"sendonly"===m))}),this.remoteDescription={type:n.type,sdp:n.sdp},n.type){case"offer":this._updateSignalingState("have-remote-offer");break;case"answer":this._updateSignalingState("stable");break;default:throw new TypeError('unsupported type "'+n.type+'"')}return Object.keys(o).forEach(function(t){var n=o[t];if(n.getTracks().length){r.remoteStreams.push(n);var i=new Event("addstream");i.stream=n,r.dispatchEvent(i),null!==r.onaddstream&&e.setTimeout(function(){r.onaddstream(i)},0),c.forEach(function(t){var i=t[0],o=t[1];if(n.id===t[2].id){var a=new Event("track");a.track=i,a.receiver=o,a.streams=[n],r.dispatchEvent(a),null!==r.ontrack&&e.setTimeout(function(){r.ontrack(a)},0)}})}}),e.setTimeout(function(){r&&r.transceivers&&r.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),arguments.length>1&&"function"==typeof arguments[1]&&e.setTimeout(arguments[1],0),Promise.resolve()},n.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._updateSignalingState("closed")},n.prototype._updateSignalingState=function(e){this.signalingState=e;var t=new Event("signalingstatechange");this.dispatchEvent(t),null!==this.onsignalingstatechange&&this.onsignalingstatechange(t)},n.prototype._maybeFireNegotiationNeeded=function(){var t=this;"stable"===this.signalingState&&!0!==this.needNegotiation&&(this.needNegotiation=!0,e.setTimeout(function(){if(!1!==t.needNegotiation){t.needNegotiation=!1;var e=new Event("negotiationneeded");t.dispatchEvent(e),null!==t.onnegotiationneeded&&t.onnegotiationneeded(e)}},0))},n.prototype._updateConnectionState=function(){var e,t=this,n={new:0,closed:0,connecting:0,checking:0,connected:0,completed:0,disconnected:0,failed:0};if(this.transceivers.forEach(function(e){n[e.iceTransport.state]++,n[e.dtlsTransport.state]++}),n.connected+=n.completed,e="new",n.failed>0?e="failed":n.connecting>0||n.checking>0?e="connecting":n.disconnected>0?e="disconnected":n.new>0?e="new":(n.connected>0||n.completed>0)&&(e="connected"),e!==t.iceConnectionState){t.iceConnectionState=e;var r=new Event("iceconnectionstatechange");this.dispatchEvent(r),null!==this.oniceconnectionstatechange&&this.oniceconnectionstatechange(r)}},n.prototype.createOffer=function(){var n=this;if(this._pendingOffer)throw new Error("createOffer called while there is a pending offer.");var i;1===arguments.length&&"function"!=typeof arguments[0]?i=arguments[0]:3===arguments.length&&(i=arguments[2]);var o=this.transceivers.filter(function(e){return"audio"===e.kind}).length,a=this.transceivers.filter(function(e){return"video"===e.kind}).length;if(i){if(i.mandatory||i.optional)throw new TypeError("Legacy mandatory/optional constraints not supported.");void 0!==i.offerToReceiveAudio&&(o=!0===i.offerToReceiveAudio?1:!1===i.offerToReceiveAudio?0:i.offerToReceiveAudio),void 0!==i.offerToReceiveVideo&&(a=!0===i.offerToReceiveVideo?1:!1===i.offerToReceiveVideo?0:i.offerToReceiveVideo)}for(this.transceivers.forEach(function(e){"audio"===e.kind?--o<0&&(e.wantReceive=!1):"video"===e.kind&&--a<0&&(e.wantReceive=!1)});o>0||a>0;)o>0&&(this._createTransceiver("audio"),o--),a>0&&(this._createTransceiver("video"),a--);var c=r(this.transceivers),u=s.writeSessionBoilerplate(this._sdpSessionId);c.forEach(function(r,i){var o=r.track,a=r.kind,u=s.generateIdentifier();r.mid=u,r.iceGatherer||(r.iceGatherer=n.usingBundle&&i>0?c[0].iceGatherer:n._createIceGatherer(u,i));var d=e.RTCRtpSender.getCapabilities(a);t<15019&&(d.codecs=d.codecs.filter(function(e){return"rtx"!==e.name})),d.codecs.forEach(function(e){"H264"===e.name&&void 0===e.parameters["level-asymmetry-allowed"]&&(e.parameters["level-asymmetry-allowed"]="1")});var f=[{ssrc:1001*(2*i+1)}];o&&t>=15019&&"video"===a&&(f[0].rtx={ssrc:1001*(2*i+1)+1}),r.wantReceive&&(r.rtpReceiver=new e.RTCRtpReceiver(r.dtlsTransport,a)),r.localCapabilities=d,r.sendEncodingParameters=f}),"max-compat"!==this._config.bundlePolicy&&(u+="a=group:BUNDLE "+c.map(function(e){return e.mid}).join(" ")+"\r\n"),u+="a=ice-options:trickle\r\n",c.forEach(function(e,t){u+=s.writeMediaSection(e,e.localCapabilities,"offer",e.stream),u+="a=rtcp-rsize\r\n"}),this._pendingOffer=c;var d=new e.RTCSessionDescription({type:"offer",sdp:u});return arguments.length&&"function"==typeof arguments[0]&&e.setTimeout(arguments[0],0,d),Promise.resolve(d)},n.prototype.createAnswer=function(){var n=s.writeSessionBoilerplate(this._sdpSessionId);this.usingBundle&&(n+="a=group:BUNDLE "+this.transceivers.map(function(e){return e.mid}).join(" ")+"\r\n"),this.transceivers.forEach(function(e,r){if(e.isDatachannel)return void(n+="m=application 0 DTLS/SCTP 5000\r\nc=IN IP4 0.0.0.0\r\na=mid:"+e.mid+"\r\n");if(e.stream){var i;"audio"===e.kind?i=e.stream.getAudioTracks()[0]:"video"===e.kind&&(i=e.stream.getVideoTracks()[0]),i&&t>=15019&&"video"===e.kind&&(e.sendEncodingParameters[0].rtx={ssrc:1001*(2*r+2)+1})}var a=o(e.localCapabilities,e.remoteCapabilities);!a.codecs.filter(function(e){return"rtx"===e.name.toLowerCase()}).length&&e.sendEncodingParameters[0].rtx&&delete e.sendEncodingParameters[0].rtx,n+=s.writeMediaSection(e,a,"answer",e.stream),e.rtcpParameters&&e.rtcpParameters.reducedSize&&(n+="a=rtcp-rsize\r\n")});var r=new e.RTCSessionDescription({type:"answer",sdp:n});return arguments.length&&"function"==typeof arguments[0]&&e.setTimeout(arguments[0],0,r),Promise.resolve(r)},n.prototype.addIceCandidate=function(t){if(t){var n=t.sdpMLineIndex;if(t.sdpMid)for(var r=0;r<this.transceivers.length;r++)if(this.transceivers[r].mid===t.sdpMid){n=r;break}var i=this.transceivers[n];if(i){var o=Object.keys(t.candidate).length>0?s.parseCandidate(t.candidate):{};if("tcp"===o.protocol&&(0===o.port||9===o.port))return Promise.resolve();if(o.component&&"1"!==o.component&&1!==o.component)return Promise.resolve();i.iceTransport.addRemoteCandidate(o);var a=s.splitSections(this.remoteDescription.sdp);a[n+1]+=(o.type?t.candidate.trim():"a=end-of-candidates")+"\r\n",this.remoteDescription.sdp=a.join("")}}else for(var c=0;c<this.transceivers.length;c++)if(this.transceivers[c].iceTransport.addRemoteCandidate({}),this.usingBundle)return Promise.resolve();return arguments.length>1&&"function"==typeof arguments[1]&&e.setTimeout(arguments[1],0),Promise.resolve()},n.prototype.getStats=function(){var t=[];this.transceivers.forEach(function(e){["rtpSender","rtpReceiver","iceGatherer","iceTransport","dtlsTransport"].forEach(function(n){e[n]&&t.push(e[n].getStats())})});var n=arguments.length>1&&"function"==typeof arguments[1]&&arguments[1],r=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(i){var o=new Map;Promise.all(t).then(function(t){t.forEach(function(e){Object.keys(e).forEach(function(t){e[t].type=r(e[t]),o.set(t,e[t])})}),n&&e.setTimeout(n,0,o),i(o)})})},n}},function(e,t,n){"use strict";var r=n(19),i={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 n=new Event("track");n.track=t,n.receiver={track:t},n.streams=[e.stream],this.dispatchEvent(n)}.bind(this))}.bind(this))}})},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=r.detectBrowser(e);if("object"==typeof e&&(e.RTCPeerConnection||e.mozRTCPeerConnection)){e.RTCPeerConnection||(e.RTCPeerConnection=function(n,r){if(t.version<38&&n&&n.iceServers){for(var i=[],o=0;o<n.iceServers.length;o++){var a=n.iceServers[o];if(a.hasOwnProperty("urls"))for(var s=0;s<a.urls.length;s++){var c={url:a.urls[s]};0===a.urls[s].indexOf("turn")&&(c.username=a.username,c.credential=a.credential),i.push(c)}else i.push(n.iceServers[o])}n.iceServers=i}return new e.mozRTCPeerConnection(n,r)},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 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 n=e.RTCPeerConnection.prototype.addIceCandidate;e.RTCPeerConnection.prototype.addIceCandidate=function(){return arguments[0]?n.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(n){t.set(n,e[n]),t[n]=e[n]}),t},o={inboundrtp:"inbound-rtp",outboundrtp:"outbound-rtp",candidatepair:"candidate-pair",localcandidate:"local-candidate",remotecandidate:"remote-candidate"},a=e.RTCPeerConnection.prototype.getStats;e.RTCPeerConnection.prototype.getStats=function(e,n,r){return a.apply(this,[e||null]).then(function(e){if(t.version<48&&(e=i(e)),t.version<53&&!n)try{e.forEach(function(e){e.type=o[e.type]||e.type})}catch(t){if("TypeError"!==t.name)throw t;e.forEach(function(t,n){e.set(n,Object.assign({},t,{type:o[t.type]||t.type}))})}return e}).then(n,r)}}}};e.exports={shimOnTrack:i.shimOnTrack,shimSourceObject:i.shimSourceObject,shimPeerConnection:i.shimPeerConnection,shimGetUserMedia:n(178)}},function(e,t,n){"use strict";var r=n(19),i=r.log;e.exports=function(e){var t=r.detectBrowser(e),n=e&&e.navigator,o=e&&e.MediaStreamTrack,a=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,r,o){var s=function(e){if("object"!=typeof e||e.require)return e;var t=[];return Object.keys(e).forEach(function(n){if("require"!==n&&"advanced"!==n&&"mediaSource"!==n){var r=e[n]="object"==typeof e[n]?e[n]:{ideal:e[n]};if(void 0===r.min&&void 0===r.max&&void 0===r.exact||t.push(n),void 0!==r.exact&&("number"==typeof r.exact?r.min=r.max=r.exact:e[n]=r.exact,delete r.exact),void 0!==r.ideal){e.advanced=e.advanced||[];var i={};"number"==typeof r.ideal?i[n]={min:r.ideal,max:r.ideal}:i[n]=r.ideal,e.advanced.push(i),delete r.ideal,Object.keys(r).length||delete e[n]}}}),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))),n.mozGetUserMedia(e,r,function(e){o(a(e))})},c=function(e){return new Promise(function(t,n){s(e,t,n)})};if(n.mediaDevices||(n.mediaDevices={getUserMedia:c,addEventListener:function(){},removeEventListener:function(){}}),n.mediaDevices.enumerateDevices=n.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 u=n.mediaDevices.enumerateDevices.bind(n.mediaDevices);n.mediaDevices.enumerateDevices=function(){return u().then(void 0,function(e){if("NotFoundError"===e.name)return[];throw e})}}if(t.version<49){var d=n.mediaDevices.getUserMedia.bind(n.mediaDevices);n.mediaDevices.getUserMedia=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("The object can not be found here.","NotFoundError");return t},function(e){return Promise.reject(a(e))})}}if(!(t.version>55&&"autoGainControl"in n.mediaDevices.getSupportedConstraints())){var f=function(e,t,n){t in e&&!(n in e)&&(e[n]=e[t],delete e[t])},l=n.mediaDevices.getUserMedia.bind(n.mediaDevices);if(n.mediaDevices.getUserMedia=function(e){return"object"==typeof e&&"object"==typeof e.audio&&(e=JSON.parse(JSON.stringify(e)),f(e.audio,"autoGainControl","mozAutoGainControl"),f(e.audio,"noiseSuppression","mozNoiseSuppression")),l(e)},o&&o.prototype.getSettings){var p=o.prototype.getSettings;o.prototype.getSettings=function(){var e=p.apply(this,arguments);return f(e,"mozAutoGainControl","autoGainControl"),f(e,"mozNoiseSuppression","noiseSuppression"),e}}if(o&&o.prototype.applyConstraints){var h=o.prototype.applyConstraints;o.prototype.applyConstraints=function(e){return"audio"===this.kind&&"object"==typeof e&&(e=JSON.parse(JSON.stringify(e)),f(e,"autoGainControl","mozAutoGainControl"),f(e,"noiseSuppression","mozNoiseSuppression")),h.apply(this,[e])}}}n.getUserMedia=function(e,i,o){if(t.version<44)return s(e,i,o);r.deprecated("navigator.getUserMedia","navigator.mediaDevices.getUserMedia"),n.mediaDevices.getUserMedia(e).then(i,o)}}},function(e,t,n){"use strict";var r=n(19),i={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(n){n.id===e&&(t=n)}),this._remoteStreams&&this._remoteStreams.forEach(function(n){n.id===e&&(t=n)}),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 n=this;e.getTracks().forEach(function(r){t.call(n,r,e)})},e.RTCPeerConnection.prototype.addTrack=function(e,n){n&&(this._localStreams?-1===this._localStreams.indexOf(n)&&this._localStreams.push(n):this._localStreams=[n]),t.call(this,e,n)}}"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 n=this,r=e.getTracks();this.getSenders().forEach(function(e){-1!==r.indexOf(e.track)&&n.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){this._onaddstream&&(this.removeEventListener("addstream",this._onaddstream),this.removeEventListener("track",this._onaddstreampoly)),this.addEventListener("addstream",this._onaddstream=e),this.addEventListener("track",this._onaddstreampoly=function(e){var t=e.streams[0];if(this._remoteStreams||(this._remoteStreams=[]),!(this._remoteStreams.indexOf(t)>=0)){this._remoteStreams.push(t);var n=new Event("addstream");n.stream=e.streams[0],this.dispatchEvent(n)}}.bind(this))}}))},shimCallbacksAPI:function(e){if("object"==typeof e&&e.RTCPeerConnection){var t=e.RTCPeerConnection.prototype,n=t.createOffer,r=t.createAnswer,i=t.setLocalDescription,o=t.setRemoteDescription,a=t.addIceCandidate;t.createOffer=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},t.createAnswer=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};var s=function(e,t,n){var r=i.apply(this,[e]);return n?(r.then(t,n),Promise.resolve()):r};t.setLocalDescription=s,s=function(e,t,n){var r=o.apply(this,[e]);return n?(r.then(t,n),Promise.resolve()):r},t.setRemoteDescription=s,s=function(e,t,n){var r=a.apply(this,[e]);return n?(r.then(t,n),Promise.resolve()):r},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,n,r){t.mediaDevices.getUserMedia(e).then(n,r)}.bind(t)))},shimRTCIceServerUrls:function(e){var t=e.RTCPeerConnection;e.RTCPeerConnection=function(e,n){if(e&&e.iceServers){for(var i=[],o=0;o<e.iceServers.length;o++){var a=e.iceServers[o];!a.hasOwnProperty("urls")&&a.hasOwnProperty("url")?(r.deprecated("RTCIceServer.url","RTCIceServer.urls"),a=JSON.parse(JSON.stringify(a)),a.urls=a.url,delete a.url,i.push(a)):i.push(e.iceServers[o])}e.iceServers=i}return new t(e,n)},e.RTCPeerConnection.prototype=t.prototype,Object.defineProperty(e.RTCPeerConnection,"generateCertificate",{get:function(){return t.generateCertificate}})}};e.exports={shimCallbacksAPI:i.shimCallbacksAPI,shimLocalStreamsAPI:i.shimLocalStreamsAPI,shimRemoteStreamsAPI:i.shimRemoteStreamsAPI,shimGetUserMedia:i.shimGetUserMedia,shimRTCIceServerUrls:i.shimRTCIceServerUrls}}])});