!function(e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define([],e):("undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this).adapter=e()}(function(){return function n(i,o,a){function s(t,e){if(!o[t]){if(!i[t]){var r="function"==typeof require&&require;if(!e&&r)return r(t,!0);if(c)return c(t,!0);throw(e=new Error("Cannot find module '"+t+"'")).code="MODULE_NOT_FOUND",e}r=o[t]={exports:{}},i[t][0].call(r.exports,function(e){return s(i[t][1][e]||e)},r,r.exports,n,i,o,a)}return o[t].exports}for(var c="function"==typeof require&&require,e=0;e<a.length;e++)s(a[e]);return s}({1:[function(e,t,r){"use strict";e=(0,e("./adapter_factory.js").adapterFactory)({window:"undefined"==typeof window?void 0:window});t.exports=e},{"./adapter_factory.js":2}],2:[function(e,t,r){"use strict";function a(e){return(a="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}Object.defineProperty(r,"__esModule",{value:!0}),r.adapterFactory=function(){var e=(0<arguments.length&&void 0!==arguments[0]?arguments[0]:{}).window,t=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{shimChrome:!0,shimFirefox:!0,shimSafari:!0},r=o.log,n=o.detectBrowser(e),i={browserDetails:n,commonShim:u,extractVersion:o.extractVersion,disableLog:o.disableLog,disableWarnings:o.disableWarnings,sdp:d};switch(n.browser){case"chrome":if(!s||!s.shimPeerConnection||!t.shimChrome)return r("Chrome shim is not included in this adapter release."),i;if(null===n.version)return r("Chrome shim can not determine version, not shimming."),i;r("adapter.js shimming chrome."),i.browserShim=s,u.shimAddIceCandidateNullOrEmpty(e,n),u.shimParameterlessSetLocalDescription(e,n),s.shimGetUserMedia(e,n),s.shimMediaStream(e,n),s.shimPeerConnection(e,n),s.shimOnTrack(e,n),s.shimAddTrackRemoveTrack(e,n),s.shimGetSendersWithDtmf(e,n),s.shimSenderReceiverGetStats(e,n),s.fixNegotiationNeeded(e,n),u.shimRTCIceCandidate(e,n),u.shimRTCIceCandidateRelayProtocol(e,n),u.shimConnectionState(e,n),u.shimMaxMessageSize(e,n),u.shimSendThrowTypeError(e,n),u.removeExtmapAllowMixed(e,n);break;case"firefox":if(!c||!c.shimPeerConnection||!t.shimFirefox)return r("Firefox shim is not included in this adapter release."),i;r("adapter.js shimming firefox."),i.browserShim=c,u.shimAddIceCandidateNullOrEmpty(e,n),u.shimParameterlessSetLocalDescription(e,n),c.shimGetUserMedia(e,n),c.shimPeerConnection(e,n),c.shimOnTrack(e,n),c.shimRemoveStream(e,n),c.shimSenderGetStats(e,n),c.shimReceiverGetStats(e,n),c.shimRTCDataChannel(e,n),c.shimAddTransceiver(e,n),c.shimGetParameters(e,n),c.shimCreateOffer(e,n),c.shimCreateAnswer(e,n),u.shimRTCIceCandidate(e,n),u.shimConnectionState(e,n),u.shimMaxMessageSize(e,n),u.shimSendThrowTypeError(e,n);break;case"safari":if(!p||!t.shimSafari)return r("Safari shim is not included in this adapter release."),i;r("adapter.js shimming safari."),i.browserShim=p,u.shimAddIceCandidateNullOrEmpty(e,n),u.shimParameterlessSetLocalDescription(e,n),p.shimRTCIceServerUrls(e,n),p.shimCreateOfferLegacy(e,n),p.shimCallbacksAPI(e,n),p.shimLocalStreamsAPI(e,n),p.shimRemoteStreamsAPI(e,n),p.shimTrackEventTransceiver(e,n),p.shimGetUserMedia(e,n),p.shimAudioContext(e,n),u.shimRTCIceCandidate(e,n),u.shimRTCIceCandidateRelayProtocol(e,n),u.shimMaxMessageSize(e,n),u.shimSendThrowTypeError(e,n),u.removeExtmapAllowMixed(e,n);break;default:r("Unsupported browser!")}return i};var o=n(e("./utils")),s=n(e("./chrome/chrome_shim")),c=n(e("./firefox/firefox_shim")),p=n(e("./safari/safari_shim")),u=n(e("./common_shim")),d=n(e("sdp"));function f(e){if("function"!=typeof WeakMap)return null;var t=new WeakMap,r=new WeakMap;return(f=function(e){return e?r:t})(e)}function n(e,t){if(!t&&e&&e.__esModule)return e;if(null===e||"object"!=a(e)&&"function"!=typeof e)return{default:e};t=f(t);if(t&&t.has(e))return t.get(e);var r,n,i={__proto__:null},o=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(r in e)"default"!==r&&{}.hasOwnProperty.call(e,r)&&((n=o?Object.getOwnPropertyDescriptor(e,r):null)&&(n.get||n.set)?Object.defineProperty(i,r,n):i[r]=e[r]);return i.default=e,t&&t.set(e,i),i}},{"./chrome/chrome_shim":3,"./common_shim":5,"./firefox/firefox_shim":6,"./safari/safari_shim":9,"./utils":10,sdp:11}],3:[function(e,t,r){"use strict";Object.defineProperty(r,"__esModule",{value:!0}),r.fixNegotiationNeeded=function(e,r){i.wrapPeerConnectionEvent(e,"negotiationneeded",function(e){var t=e.target;if(!(r.version<72||t.getConfiguration&&"plan-b"===t.getConfiguration().sdpSemantics)||"stable"===t.signalingState)return e})},r.shimAddTrackRemoveTrack=function(i,e){if(i.RTCPeerConnection){if(i.RTCPeerConnection.prototype.addTrack&&65<=e.version)return p(i);var r=i.RTCPeerConnection.prototype.getLocalStreams,n=(i.RTCPeerConnection.prototype.getLocalStreams=function(){var t=this,e=r.apply(this);return this._reverseStreams=this._reverseStreams||{},e.map(function(e){return t._reverseStreams[e.id]})},i.RTCPeerConnection.prototype.addStream),t=(i.RTCPeerConnection.prototype.addStream=function(e){var t,r=this;this._streams=this._streams||{},this._reverseStreams=this._reverseStreams||{},e.getTracks().forEach(function(t){if(r.getSenders().find(function(e){return e.track===t}))throw new DOMException("Track already exists.","InvalidAccessError")}),this._reverseStreams[e.id]||(t=new i.MediaStream(e.getTracks()),this._streams[e.id]=t,this._reverseStreams[t.id]=e,e=t),n.apply(this,[e])},i.RTCPeerConnection.prototype.removeStream),o=(i.RTCPeerConnection.prototype.removeStream=function(e){this._streams=this._streams||{},this._reverseStreams=this._reverseStreams||{},t.apply(this,[this._streams[e.id]||e]),delete this._reverseStreams[(this._streams[e.id]||e).id],delete this._streams[e.id]},i.RTCPeerConnection.prototype.addTrack=function(t,e){var r=this;if("closed"===this.signalingState)throw new DOMException("The RTCPeerConnection's signalingState is 'closed'.","InvalidStateError");var n=[].slice.call(arguments,1);if(1!==n.length||!n[0].getTracks().find(function(e){return e===t}))throw new DOMException("The adapter.js addTrack polyfill only supports a single  stream which is associated with the specified track.","NotSupportedError");if(this.getSenders().find(function(e){return e.track===t}))throw new DOMException("Track already exists.","InvalidAccessError");this._streams=this._streams||{},this._reverseStreams=this._reverseStreams||{};var n=this._streams[e.id];return n?(n.addTrack(t),Promise.resolve().then(function(){r.dispatchEvent(new Event("negotiationneeded"))})):(n=new i.MediaStream([t]),this._streams[e.id]=n,this._reverseStreams[n.id]=e,this.addStream(n)),this.getSenders().find(function(e){return e.track===t})},["createOffer","createAnswer"].forEach(function(e){var n=i.RTCPeerConnection.prototype[e],t=c({},e,function(){var t=this,r=arguments;return arguments.length&&"function"==typeof arguments[0]?n.apply(this,[function(e){e=s(t,e);r[0].apply(null,[e])},function(e){r[1]&&r[1].apply(null,e)},arguments[2]]):n.apply(this,arguments).then(function(e){return s(t,e)})});i.RTCPeerConnection.prototype[e]=t[e]}),i.RTCPeerConnection.prototype.setLocalDescription),a=(i.RTCPeerConnection.prototype.setLocalDescription=function(){return arguments.length&&arguments[0].type&&(arguments[0]=(r=this,n=(e=arguments[0]).sdp,Object.keys(r._reverseStreams||[]).forEach(function(e){var e=r._reverseStreams[e],t=r._streams[e.id];n=n.replace(new RegExp(e.id,"g"),t.id)}),new RTCSessionDescription({type:e.type,sdp:n}))),o.apply(this,arguments);var r,e,n},Object.getOwnPropertyDescriptor(i.RTCPeerConnection.prototype,"localDescription"));Object.defineProperty(i.RTCPeerConnection.prototype,"localDescription",{get:function(){var e=a.get.apply(this);return""===e.type?e:s(this,e)}}),i.RTCPeerConnection.prototype.removeTrack=function(t){var r,n=this;if("closed"===this.signalingState)throw new DOMException("The RTCPeerConnection's signalingState is 'closed'.","InvalidStateError");if(!t._pc)throw new DOMException("Argument 1 of RTCPeerConnection.removeTrack does not implement interface RTCRtpSender.","TypeError");if(!(t._pc===this))throw new DOMException("Sender was not created by this connection.","InvalidAccessError");this._streams=this._streams||{},Object.keys(this._streams).forEach(function(e){n._streams[e].getTracks().find(function(e){return t.track===e})&&(r=n._streams[e])}),r&&(1===r.getTracks().length?this.removeStream(this._reverseStreams[r.id]):r.removeTrack(t.track),this.dispatchEvent(new Event("negotiationneeded")))}}function s(r,e){var n=e.sdp;return Object.keys(r._reverseStreams||[]).forEach(function(e){var e=r._reverseStreams[e],t=r._streams[e.id];n=n.replace(new RegExp(t.id,"g"),e.id)}),new RTCSessionDescription({type:e.type,sdp:n})}},r.shimAddTrackRemoveTrackWithNative=p,r.shimGetSendersWithDtmf=function(e){{var n,i,t,r,o,a;"object"===s(e)&&e.RTCPeerConnection&&!("getSenders"in e.RTCPeerConnection.prototype)&&"createDTMFSender"in e.RTCPeerConnection.prototype?(n=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}},e.RTCPeerConnection.prototype.getSenders||(e.RTCPeerConnection.prototype.getSenders=function(){return this._senders=this._senders||[],this._senders.slice()},i=e.RTCPeerConnection.prototype.addTrack,e.RTCPeerConnection.prototype.addTrack=function(e,t){var r=i.apply(this,arguments);return r||(r=n(this,e),this._senders.push(r)),r},t=e.RTCPeerConnection.prototype.removeTrack,e.RTCPeerConnection.prototype.removeTrack=function(e){t.apply(this,arguments);e=this._senders.indexOf(e);-1!==e&&this._senders.splice(e,1)}),r=e.RTCPeerConnection.prototype.addStream,e.RTCPeerConnection.prototype.addStream=function(e){var t=this;this._senders=this._senders||[],r.apply(this,[e]),e.getTracks().forEach(function(e){t._senders.push(n(t,e))})},o=e.RTCPeerConnection.prototype.removeStream,e.RTCPeerConnection.prototype.removeStream=function(e){var r=this;this._senders=this._senders||[],o.apply(this,[e]),e.getTracks().forEach(function(t){var e=r._senders.find(function(e){return e.track===t});e&&r._senders.splice(r._senders.indexOf(e),1)})}):"object"===s(e)&&e.RTCPeerConnection&&"getSenders"in e.RTCPeerConnection.prototype&&"createDTMFSender"in e.RTCPeerConnection.prototype&&e.RTCRtpSender&&!("dtmf"in e.RTCRtpSender.prototype)&&(a=e.RTCPeerConnection.prototype.getSenders,e.RTCPeerConnection.prototype.getSenders=function(){var t=this,e=a.apply(this,[]);return e.forEach(function(e){return e._pc=t}),e},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}}))}},Object.defineProperty(r,"shimGetUserMedia",{enumerable:!0,get:function(){return n.shimGetUserMedia}}),r.shimMediaStream=function(e){e.MediaStream=e.MediaStream||e.webkitMediaStream},r.shimOnTrack=function(o){{var e;"object"!==s(o)||!o.RTCPeerConnection||"ontrack"in o.RTCPeerConnection.prototype?i.wrapPeerConnectionEvent(o,"track",function(e){return e.transceiver||Object.defineProperty(e,"transceiver",{value:{receiver:e.receiver}}),e}):(Object.defineProperty(o.RTCPeerConnection.prototype,"ontrack",{get:function(){return this._ontrack},set:function(e){this._ontrack&&this.removeEventListener("track",this._ontrack),this.addEventListener("track",this._ontrack=e)},enumerable:!0,configurable:!0}),e=o.RTCPeerConnection.prototype.setRemoteDescription,o.RTCPeerConnection.prototype.setRemoteDescription=function(){var i=this;return this._ontrackpoly||(this._ontrackpoly=function(n){n.stream.addEventListener("addtrack",function(t){var e=o.RTCPeerConnection.prototype.getReceivers?i.getReceivers().find(function(e){return e.track&&e.track.id===t.track.id}):{track:t.track},r=new Event("track");r.track=t.track,r.receiver=e,r.transceiver={receiver:e},r.streams=[n.stream],i.dispatchEvent(r)}),n.stream.getTracks().forEach(function(t){var e=o.RTCPeerConnection.prototype.getReceivers?i.getReceivers().find(function(e){return e.track&&e.track.id===t.id}):{track:t},r=new Event("track");r.track=t,r.receiver=e,r.transceiver={receiver:e},r.streams=[n.stream],i.dispatchEvent(r)})},this.addEventListener("addstream",this._ontrackpoly)),e.apply(this,arguments)})}},r.shimPeerConnection=function(n,e){!n.RTCPeerConnection&&n.webkitRTCPeerConnection&&(n.RTCPeerConnection=n.webkitRTCPeerConnection);n.RTCPeerConnection&&e.version<53&&["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach(function(e){var t=n.RTCPeerConnection.prototype[e],r=c({},e,function(){return arguments[0]=new("addIceCandidate"===e?n.RTCIceCandidate:n.RTCSessionDescription)(arguments[0]),t.apply(this,arguments)});n.RTCPeerConnection.prototype[e]=r[e]})},r.shimSenderReceiverGetStats=function(e){var r,t,n,o;"object"===s(e)&&e.RTCPeerConnection&&e.RTCRtpSender&&e.RTCRtpReceiver&&("getStats"in e.RTCRtpSender.prototype||((r=e.RTCPeerConnection.prototype.getSenders)&&(e.RTCPeerConnection.prototype.getSenders=function(){var t=this,e=r.apply(this,[]);return e.forEach(function(e){return e._pc=t}),e}),(t=e.RTCPeerConnection.prototype.addTrack)&&(e.RTCPeerConnection.prototype.addTrack=function(){var e=t.apply(this,arguments);return e._pc=this,e}),e.RTCRtpSender.prototype.getStats=function(){var t=this;return this._pc.getStats().then(function(e){return i.filterStats(e,t.track,!0)})}),"getStats"in e.RTCRtpReceiver.prototype||((n=e.RTCPeerConnection.prototype.getReceivers)&&(e.RTCPeerConnection.prototype.getReceivers=function(){var t=this,e=n.apply(this,[]);return e.forEach(function(e){return e._pc=t}),e}),i.wrapPeerConnectionEvent(e,"track",function(e){return e.receiver._pc=e.srcElement,e}),e.RTCRtpReceiver.prototype.getStats=function(){var t=this;return this._pc.getStats().then(function(e){return i.filterStats(e,t.track,!1)})}),"getStats"in e.RTCRtpSender.prototype&&"getStats"in e.RTCRtpReceiver.prototype&&(o=e.RTCPeerConnection.prototype.getStats,e.RTCPeerConnection.prototype.getStats=function(){var t,r,n,i;return 0<arguments.length&&arguments[0]instanceof e.MediaStreamTrack?(t=arguments[0],this.getSenders().forEach(function(e){e.track===t&&(r?i=!0:r=e)}),this.getReceivers().forEach(function(e){return e.track===t&&(n?i=!0:n=e),e.track===t}),i||r&&n?Promise.reject(new DOMException("There are more than one sender or receiver for the track.","InvalidAccessError")):r?r.getStats():n?n.getStats():Promise.reject(new DOMException("There is no sender or receiver for the track.","InvalidAccessError"))):o.apply(this,arguments)}))};var i=function(e,t){if(!t&&e&&e.__esModule)return e;if(null===e||"object"!=s(e)&&"function"!=typeof e)return{default:e};t=a(t);if(t&&t.has(e))return t.get(e);var r,n={__proto__:null},i=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(r in e){var o;"default"!==r&&{}.hasOwnProperty.call(e,r)&&((o=i?Object.getOwnPropertyDescriptor(e,r):null)&&(o.get||o.set)?Object.defineProperty(n,r,o):n[r]=e[r])}return n.default=e,t&&t.set(e,n),n}(e("../utils.js")),n=e("./getusermedia");function a(e){if("function"!=typeof WeakMap)return null;var t=new WeakMap,r=new WeakMap;return(a=function(e){return e?r:t})(e)}function c(e,t,r){return(t=function(e){e=function(e,t){if("object"!=s(e)||!e)return e;var r=e[Symbol.toPrimitive];if(void 0===r)return("string"===t?String:Number)(e);r=r.call(e,t||"default");if("object"!=s(r))return r;throw new TypeError("@@toPrimitive must return a primitive value.")}(e,"string");return"symbol"==s(e)?e:e+""}(t))in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function s(e){return(s="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function p(e){e.RTCPeerConnection.prototype.getLocalStreams=function(){var t=this;return this._shimmedLocalStreams=this._shimmedLocalStreams||{},Object.keys(this._shimmedLocalStreams).map(function(e){return t._shimmedLocalStreams[e][0]})};var n=e.RTCPeerConnection.prototype.addTrack,i=(e.RTCPeerConnection.prototype.addTrack=function(e,t){if(!t)return n.apply(this,arguments);this._shimmedLocalStreams=this._shimmedLocalStreams||{};var r=n.apply(this,arguments);return this._shimmedLocalStreams[t.id]?-1===this._shimmedLocalStreams[t.id].indexOf(r)&&this._shimmedLocalStreams[t.id].push(r):this._shimmedLocalStreams[t.id]=[t,r],r},e.RTCPeerConnection.prototype.addStream),t=(e.RTCPeerConnection.prototype.addStream=function(e){var r=this,t=(this._shimmedLocalStreams=this._shimmedLocalStreams||{},e.getTracks().forEach(function(t){if(r.getSenders().find(function(e){return e.track===t}))throw new DOMException("Track already exists.","InvalidAccessError")}),this.getSenders()),n=(i.apply(this,arguments),this.getSenders().filter(function(e){return-1===t.indexOf(e)}));this._shimmedLocalStreams[e.id]=[e].concat(n)},e.RTCPeerConnection.prototype.removeStream),o=(e.RTCPeerConnection.prototype.removeStream=function(e){return this._shimmedLocalStreams=this._shimmedLocalStreams||{},delete this._shimmedLocalStreams[e.id],t.apply(this,arguments)},e.RTCPeerConnection.prototype.removeTrack);e.RTCPeerConnection.prototype.removeTrack=function(r){var n=this;return this._shimmedLocalStreams=this._shimmedLocalStreams||{},r&&Object.keys(this._shimmedLocalStreams).forEach(function(e){var t=n._shimmedLocalStreams[e].indexOf(r);-1!==t&&n._shimmedLocalStreams[e].splice(t,1),1===n._shimmedLocalStreams[e].length&&delete n._shimmedLocalStreams[e]}),o.apply(this,arguments)}}},{"../utils.js":10,"./getusermedia":4}],4:[function(e,t,r){"use strict";function a(e){if("function"!=typeof WeakMap)return null;var t=new WeakMap,r=new WeakMap;return(a=function(e){return e?r:t})(e)}function c(e){return(c="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}Object.defineProperty(r,"__esModule",{value:!0}),r.shimGetUserMedia=function(e,t){var a,n,i,r,s=e&&e.navigator;s.mediaDevices&&(a=function(i){if("object"!==c(i)||i.mandatory||i.optional)return i;var o={};return Object.keys(i).forEach(function(t){var r,n,e;"require"!==t&&"advanced"!==t&&"mediaSource"!==t&&(void 0!==(r="object"===c(i[t])?i[t]:{ideal:i[t]}).exact&&"number"==typeof r.exact&&(r.min=r.max=r.exact),n=function(e,t){return e?e+t.charAt(0).toUpperCase()+t.slice(1):"deviceId"===t?"sourceId":t},void 0!==r.ideal&&(o.optional=o.optional||[],e={},"number"==typeof r.ideal?(e[n("min",t)]=r.ideal,o.optional.push(e),(e={})[n("max",t)]=r.ideal):e[n("",t)]=r.ideal,o.optional.push(e)),void 0!==r.exact&&"number"!=typeof r.exact?(o.mandatory=o.mandatory||{},o.mandatory[n("",t)]=r.exact):["min","max"].forEach(function(e){void 0!==r[e]&&(o.mandatory=o.mandatory||{},o.mandatory[n(e,t)]=r[e])}))}),i.advanced&&(o.optional=(o.optional||[]).concat(i.advanced)),o},n=function(r,n){if(61<=t.version)return n(r);if((r=JSON.parse(JSON.stringify(r)))&&"object"===c(r.audio)&&((e=function(e,t,r){t in e&&!(r in e)&&(e[r]=e[t],delete e[t])})((r=JSON.parse(JSON.stringify(r))).audio,"autoGainControl","googAutoGainControl"),e(r.audio,"noiseSuppression","googNoiseSuppression"),r.audio=a(r.audio)),r&&"object"===c(r.video)){var i,o=(o=r.video.facingMode)&&("object"===c(o)?o:{ideal:o}),e=t.version<66;if(o&&("user"===o.exact||"environment"===o.exact||"user"===o.ideal||"environment"===o.ideal)&&(!s.mediaDevices.getSupportedConstraints||!s.mediaDevices.getSupportedConstraints().facingMode||e))if(delete r.video.facingMode,"environment"===o.exact||"environment"===o.ideal?i=["back","rear"]:"user"!==o.exact&&"user"!==o.ideal||(i=["front"]),i)return s.mediaDevices.enumerateDevices().then(function(e){var t=(e=e.filter(function(e){return"videoinput"===e.kind})).find(function(t){return i.some(function(e){return t.label.toLowerCase().includes(e)})});return(t=!t&&e.length&&i.includes("back")?e[e.length-1]:t)&&(r.video.deviceId=o.exact?{exact:t.deviceId}:{ideal:t.deviceId}),r.video=a(r.video),p("chrome: "+JSON.stringify(r)),n(r)});r.video=a(r.video)}return p("chrome: "+JSON.stringify(r)),n(r)},i=function(e){return 64<=t.version?e:{name:{PermissionDeniedError:"NotAllowedError",PermissionDismissedError:"NotAllowedError",InvalidStateError:"NotAllowedError",DevicesNotFoundError:"NotFoundError",ConstraintNotSatisfiedError:"OverconstrainedError",TrackStartError:"NotReadableError",MediaDeviceFailedDueToShutdown:"NotAllowedError",MediaDeviceKillSwitchOn:"NotAllowedError",TabCaptureError:"AbortError",ScreenCaptureError:"AbortError",DeviceCaptureError:"AbortError"}[e.name]||e.name,message:e.message,constraint:e.constraint||e.constraintName,toString:function(){return this.name+(this.message&&": ")+this.message}}},s.getUserMedia=function(e,t,r){n(e,function(e){s.webkitGetUserMedia(e,t,function(e){r&&r(i(e))})})}.bind(s),s.mediaDevices.getUserMedia&&(r=s.mediaDevices.getUserMedia.bind(s.mediaDevices),s.mediaDevices.getUserMedia=function(e){return n(e,function(t){return r(t).then(function(e){if(t.audio&&!e.getAudioTracks().length||t.video&&!e.getVideoTracks().length)throw e.getTracks().forEach(function(e){e.stop()}),new DOMException("","NotFoundError");return e},function(e){return Promise.reject(i(e))})})}))};var p=function(e,t){if(!t&&e&&e.__esModule)return e;if(null===e||"object"!=c(e)&&"function"!=typeof e)return{default:e};t=a(t);if(t&&t.has(e))return t.get(e);var r,n={__proto__:null},i=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(r in e){var o;"default"!==r&&{}.hasOwnProperty.call(e,r)&&((o=i?Object.getOwnPropertyDescriptor(e,r):null)&&(o.get||o.set)?Object.defineProperty(n,r,o):n[r]=e[r])}return n.default=e,t&&t.set(e,n),n}(e("../utils.js")).log},{"../utils.js":10}],5:[function(e,t,r){"use strict";Object.defineProperty(r,"__esModule",{value:!0}),r.removeExtmapAllowMixed=function(r,e){var n;!r.RTCPeerConnection||"chrome"===e.browser&&71<=e.version||"safari"===e.browser&&605<=e.version||(n=r.RTCPeerConnection.prototype.setRemoteDescription,r.RTCPeerConnection.prototype.setRemoteDescription=function(e){var t;return e&&e.sdp&&-1!==e.sdp.indexOf("\na=extmap-allow-mixed")&&(t=e.sdp.split("\n").filter(function(e){return"a=extmap-allow-mixed"!==e.trim()}).join("\n"),r.RTCSessionDescription&&e instanceof r.RTCSessionDescription?arguments[0]=new r.RTCSessionDescription({type:e.type,sdp:t}):e.sdp=t),n.apply(this,arguments)})},r.shimAddIceCandidateNullOrEmpty=function(e,t){var r;e.RTCPeerConnection&&e.RTCPeerConnection.prototype&&((r=e.RTCPeerConnection.prototype.addIceCandidate)&&0!==r.length&&(e.RTCPeerConnection.prototype.addIceCandidate=function(){return arguments[0]?("chrome"===t.browser&&t.version<78||"firefox"===t.browser&&t.version<68||"safari"===t.browser)&&arguments[0]&&""===arguments[0].candidate?Promise.resolve():r.apply(this,arguments):(arguments[1]&&arguments[1].apply(null),Promise.resolve())}))},r.shimConnectionState=function(e){var r;!e.RTCPeerConnection||"connectionState"in e.RTCPeerConnection.prototype||(r=e.RTCPeerConnection.prototype,Object.defineProperty(r,"connectionState",{get:function(){return{completed:"connected",checking:"connecting"}[this.iceConnectionState]||this.iceConnectionState},enumerable:!0,configurable:!0}),Object.defineProperty(r,"onconnectionstatechange",{get:function(){return this._onconnectionstatechange||null},set:function(e){this._onconnectionstatechange&&(this.removeEventListener("connectionstatechange",this._onconnectionstatechange),delete this._onconnectionstatechange),e&&this.addEventListener("connectionstatechange",this._onconnectionstatechange=e)},enumerable:!0,configurable:!0}),["setLocalDescription","setRemoteDescription"].forEach(function(e){var t=r[e];r[e]=function(){return this._connectionstatechangepoly||(this._connectionstatechangepoly=function(e){var t,r=e.target;return r._lastConnectionState!==r.connectionState&&(r._lastConnectionState=r.connectionState,t=new Event("connectionstatechange",e),r.dispatchEvent(t)),e},this.addEventListener("iceconnectionstatechange",this._connectionstatechangepoly)),t.apply(this,arguments)}}))},r.shimMaxMessageSize=function(e,o){var a;e.RTCPeerConnection&&("sctp"in e.RTCPeerConnection.prototype||Object.defineProperty(e.RTCPeerConnection.prototype,"sctp",{get:function(){return void 0===this._sctp?null:this._sctp}}),a=e.RTCPeerConnection.prototype.setRemoteDescription,e.RTCPeerConnection.prototype.setRemoteDescription=function(){var e,t,r,n,i;return this._sctp=null,"chrome"===o.browser&&76<=o.version&&"plan-b"===this.getConfiguration().sdpSemantics&&Object.defineProperty(this,"sctp",{get:function(){return void 0===this._sctp?null:this._sctp},enumerable:!0,configurable:!0}),function(e){if(!e||!e.sdp)return!1;e=s.default.splitSections(e.sdp);return e.shift(),e.some(function(e){e=s.default.parseMLine(e);return e&&"application"===e.kind&&-1!==e.protocol.indexOf("SCTP")})}(arguments[0])&&(t=function(e){e=e.sdp.match(/mozilla...THIS_IS_SDPARTA-(\d+)/);if(null===e||e.length<2)return-1;e=parseInt(e[1],10);return e!=e?-1:e}(arguments[0]),n=t,i=65536,n=i="firefox"===o.browser?o.version<57?-1===n?16384:2147483637:o.version<60?57===o.version?65535:65536:2147483637:i,i=arguments[0],t=t,r=65536,"firefox"===o.browser&&57===o.version&&(r=65535),0<(i=s.default.matchPrefix(i.sdp,"a=max-message-size:")).length?r=parseInt(i[0].substring(19),10):"firefox"===o.browser&&-1!==t&&(r=2147483637),i=r,e=0===n&&0===i?Number.POSITIVE_INFINITY:0===n||0===i?Math.max(n,i):Math.min(n,i),t={},Object.defineProperty(t,"maxMessageSize",{get:function(){return e}}),this._sctp=t),a.apply(this,arguments)})},r.shimParameterlessSetLocalDescription=function(e,t){var r;e.RTCPeerConnection&&e.RTCPeerConnection.prototype&&((r=e.RTCPeerConnection.prototype.setLocalDescription)&&0!==r.length&&(e.RTCPeerConnection.prototype.setLocalDescription=function(){var t=this,e=arguments[0]||{};if("object"!==c(e)||e.type&&e.sdp)return r.apply(this,arguments);if(!(e={type:e.type,sdp:e.sdp}).type)switch(this.signalingState){case"stable":case"have-local-offer":case"have-remote-pranswer":e.type="offer";break;default:e.type="answer"}return e.sdp||"offer"!==e.type&&"answer"!==e.type?r.apply(this,[e]):("offer"===e.type?this.createOffer:this.createAnswer).apply(this).then(function(e){return r.apply(t,[e])})}))},r.shimRTCIceCandidate=function(t){var i;!t.RTCIceCandidate||t.RTCIceCandidate&&"foundation"in t.RTCIceCandidate.prototype||(i=t.RTCIceCandidate,t.RTCIceCandidate=function(e){if("object"===c(e)&&e.candidate&&0===e.candidate.indexOf("a=")&&((e=JSON.parse(JSON.stringify(e))).candidate=e.candidate.substring(2)),e.candidate&&e.candidate.length){var t,r=new i(e),n=s.default.parseCandidate(e.candidate);for(t in n)t in r||Object.defineProperty(r,t,{value:n[t]});return r.toJSON=function(){return{candidate:r.candidate,sdpMid:r.sdpMid,sdpMLineIndex:r.sdpMLineIndex,usernameFragment:r.usernameFragment}},r}return new i(e)},t.RTCIceCandidate.prototype=i.prototype,n.wrapPeerConnectionEvent(t,"icecandidate",function(e){return e.candidate&&Object.defineProperty(e,"candidate",{value:new t.RTCIceCandidate(e.candidate),writable:"false"}),e}))},r.shimRTCIceCandidateRelayProtocol=function(e){!e.RTCIceCandidate||e.RTCIceCandidate&&"relayProtocol"in e.RTCIceCandidate.prototype||n.wrapPeerConnectionEvent(e,"icecandidate",function(e){var t;return e.candidate&&"relay"===(t=s.default.parseCandidate(e.candidate.candidate)).type&&(e.candidate.relayProtocol={0:"tls",1:"tcp",2:"udp"}[t.priority>>24]),e})},r.shimSendThrowTypeError=function(e){var t;function r(t,r){var n=t.send;t.send=function(){var e=arguments[0],e=e.length||e.size||e.byteLength;if("open"===t.readyState&&r.sctp&&e>r.sctp.maxMessageSize)throw new TypeError("Message too large (can send a maximum of "+r.sctp.maxMessageSize+" bytes)");return n.apply(t,arguments)}}e.RTCPeerConnection&&"createDataChannel"in e.RTCPeerConnection.prototype&&(t=e.RTCPeerConnection.prototype.createDataChannel,e.RTCPeerConnection.prototype.createDataChannel=function(){var e=t.apply(this,arguments);return r(e,this),e},n.wrapPeerConnectionEvent(e,"datachannel",function(e){return r(e.channel,e.target),e}))};var s=(r=e("sdp"))&&r.__esModule?r:{default:r},n=function(e,t){if(!t&&e&&e.__esModule)return e;if(null===e||"object"!=c(e)&&"function"!=typeof e)return{default:e};t=a(t);if(t&&t.has(e))return t.get(e);var r,n={__proto__:null},i=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(r in e){var o;"default"!==r&&{}.hasOwnProperty.call(e,r)&&((o=i?Object.getOwnPropertyDescriptor(e,r):null)&&(o.get||o.set)?Object.defineProperty(n,r,o):n[r]=e[r])}return n.default=e,t&&t.set(e,n),n}(e("./utils"));function a(e){if("function"!=typeof WeakMap)return null;var t=new WeakMap,r=new WeakMap;return(a=function(e){return e?r:t})(e)}function c(e){return(c="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}},{"./utils":10,sdp:11}],6:[function(e,t,r){"use strict";Object.defineProperty(r,"__esModule",{value:!0}),r.shimAddTransceiver=function(e){var i;"object"!==c(e)||!e.RTCPeerConnection||(i=e.RTCPeerConnection.prototype.addTransceiver)&&(e.RTCPeerConnection.prototype.addTransceiver=function(){this.setParametersPromises=[];var e,t=arguments[1]&&arguments[1].sendEncodings,r=0<(t=function(e){if(Array.isArray(e))return s(e)}(r=t=void 0===t?[]:t)||function(e){if("undefined"!=typeof Symbol&&null!=e[Symbol.iterator]||null!=e["@@iterator"])return Array.from(e)}(r)||function(e,t){if(e){if("string"==typeof e)return s(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Map"===(r="Object"===r&&e.constructor?e.constructor.name:r)||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?s(e,t):void 0}}(r)||function(){throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}()).length,n=(r&&t.forEach(function(e){if("rid"in e)if(!/^[a-z0-9]{0,16}$/i.test(e.rid))throw new TypeError("Invalid RID value provided.");if("scaleResolutionDownBy"in e&&!(1<=parseFloat(e.scaleResolutionDownBy)))throw new RangeError("scale_resolution_down_by must be >= 1.0");if("maxFramerate"in e&&!(0<=parseFloat(e.maxFramerate)))throw new RangeError("max_framerate must be >= 0.0")}),i.apply(this,arguments));return!r||"encodings"in(r=(e=n.sender).getParameters())&&(1!==r.encodings.length||0!==Object.keys(r.encodings[0]).length)||(r.encodings=t,e.sendEncodings=t,this.setParametersPromises.push(e.setParameters(r).then(function(){delete e.sendEncodings}).catch(function(){delete e.sendEncodings}))),n})},r.shimCreateAnswer=function(e){var r;"object"===c(e)&&e.RTCPeerConnection&&(r=e.RTCPeerConnection.prototype.createAnswer,e.RTCPeerConnection.prototype.createAnswer=function(){var e=arguments,t=this;return this.setParametersPromises&&this.setParametersPromises.length?Promise.all(this.setParametersPromises).then(function(){return r.apply(t,e)}).finally(function(){t.setParametersPromises=[]}):r.apply(this,arguments)})},r.shimCreateOffer=function(e){var r;"object"===c(e)&&e.RTCPeerConnection&&(r=e.RTCPeerConnection.prototype.createOffer,e.RTCPeerConnection.prototype.createOffer=function(){var e=arguments,t=this;return this.setParametersPromises&&this.setParametersPromises.length?Promise.all(this.setParametersPromises).then(function(){return r.apply(t,e)}).finally(function(){t.setParametersPromises=[]}):r.apply(this,arguments)})},Object.defineProperty(r,"shimGetDisplayMedia",{enumerable:!0,get:function(){return o.shimGetDisplayMedia}}),r.shimGetParameters=function(e){var t;"object"!==c(e)||!e.RTCRtpSender||(t=e.RTCRtpSender.prototype.getParameters)&&(e.RTCRtpSender.prototype.getParameters=function(){var e=t.apply(this,arguments);return"encodings"in e||(e.encodings=[].concat(this.sendEncodings||[{}])),e})},Object.defineProperty(r,"shimGetUserMedia",{enumerable:!0,get:function(){return i.shimGetUserMedia}}),r.shimOnTrack=function(e){"object"===c(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}}})},r.shimPeerConnection=function(n,i){var o,r;"object"===c(n)&&(n.RTCPeerConnection||n.mozRTCPeerConnection)&&(!n.RTCPeerConnection&&n.mozRTCPeerConnection&&(n.RTCPeerConnection=n.mozRTCPeerConnection),i.version<53&&["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach(function(e){var t=n.RTCPeerConnection.prototype[e],r=function(e,t,r){(t=function(e){e=function(e,t){if("object"!=c(e)||!e)return e;var r=e[Symbol.toPrimitive];if(void 0===r)return("string"===t?String:Number)(e);r=r.call(e,t||"default");if("object"!=c(r))return r;throw new TypeError("@@toPrimitive must return a primitive value.")}(e,"string");return"symbol"==c(e)?e:e+""}(t))in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r;return e}({},e,function(){return arguments[0]=new("addIceCandidate"===e?n.RTCIceCandidate:n.RTCSessionDescription)(arguments[0]),t.apply(this,arguments)});n.RTCPeerConnection.prototype[e]=r[e]}),o={inboundrtp:"inbound-rtp",outboundrtp:"outbound-rtp",candidatepair:"candidate-pair",localcandidate:"local-candidate",remotecandidate:"remote-candidate"},r=n.RTCPeerConnection.prototype.getStats,n.RTCPeerConnection.prototype.getStats=function(){var e=Array.prototype.slice.call(arguments),t=e[0],n=e[1],e=e[2];return r.apply(this,[t||null]).then(function(r){if(i.version<53&&!n)try{r.forEach(function(e){e.type=o[e.type]||e.type})}catch(e){if("TypeError"!==e.name)throw e;r.forEach(function(e,t){r.set(t,Object.assign({},e,{type:o[e.type]||e.type}))})}return r}).then(n,e)})},r.shimRTCDataChannel=function(e){e.DataChannel&&!e.RTCDataChannel&&(e.RTCDataChannel=e.DataChannel)},r.shimReceiverGetStats=function(e){var r;"object"===c(e)&&e.RTCPeerConnection&&e.RTCRtpSender&&(e.RTCRtpSender&&"getStats"in e.RTCRtpReceiver.prototype||((r=e.RTCPeerConnection.prototype.getReceivers)&&(e.RTCPeerConnection.prototype.getReceivers=function(){var t=this,e=r.apply(this,[]);return e.forEach(function(e){return e._pc=t}),e}),n.wrapPeerConnectionEvent(e,"track",function(e){return e.receiver._pc=e.srcElement,e}),e.RTCRtpReceiver.prototype.getStats=function(){return this._pc.getStats(this.track)}))},r.shimRemoveStream=function(e){!e.RTCPeerConnection||"removeStream"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.removeStream=function(t){var r=this;n.deprecated("removeStream","removeTrack"),this.getSenders().forEach(function(e){e.track&&t.getTracks().includes(e.track)&&r.removeTrack(e)})})},r.shimSenderGetStats=function(e){var r,t;"object"===c(e)&&e.RTCPeerConnection&&e.RTCRtpSender&&(e.RTCRtpSender&&"getStats"in e.RTCRtpSender.prototype||((r=e.RTCPeerConnection.prototype.getSenders)&&(e.RTCPeerConnection.prototype.getSenders=function(){var t=this,e=r.apply(this,[]);return e.forEach(function(e){return e._pc=t}),e}),(t=e.RTCPeerConnection.prototype.addTrack)&&(e.RTCPeerConnection.prototype.addTrack=function(){var e=t.apply(this,arguments);return e._pc=this,e}),e.RTCRtpSender.prototype.getStats=function(){return this.track?this._pc.getStats(this.track):Promise.resolve(new Map)}))};var n=function(e,t){if(!t&&e&&e.__esModule)return e;if(null===e||"object"!=c(e)&&"function"!=typeof e)return{default:e};t=a(t);if(t&&t.has(e))return t.get(e);var r,n={__proto__:null},i=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(r in e){var o;"default"!==r&&{}.hasOwnProperty.call(e,r)&&((o=i?Object.getOwnPropertyDescriptor(e,r):null)&&(o.get||o.set)?Object.defineProperty(n,r,o):n[r]=e[r])}return n.default=e,t&&t.set(e,n),n}(e("../utils")),i=e("./getusermedia"),o=e("./getdisplaymedia");function a(e){if("function"!=typeof WeakMap)return null;var t=new WeakMap,r=new WeakMap;return(a=function(e){return e?r:t})(e)}function s(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function c(e){return(c="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}},{"../utils":10,"./getdisplaymedia":7,"./getusermedia":8}],7:[function(e,t,r){"use strict";Object.defineProperty(r,"__esModule",{value:!0}),r.shimGetDisplayMedia=function(t,r){t.navigator.mediaDevices&&"getDisplayMedia"in t.navigator.mediaDevices||t.navigator.mediaDevices&&(t.navigator.mediaDevices.getDisplayMedia=function(e){return e&&e.video?(!0===e.video?e.video={mediaSource:r}:e.video.mediaSource=r,t.navigator.mediaDevices.getUserMedia(e)):((e=new DOMException("getDisplayMedia without video constraints is undefined")).name="NotFoundError",e.code=8,Promise.reject(e))})}},{}],8:[function(e,t,r){"use strict";Object.defineProperty(r,"__esModule",{value:!0}),r.shimGetUserMedia=function(e,t){var n=e&&e.navigator,e=e&&e.MediaStreamTrack;{var r,i,o,a;n.getUserMedia=function(e,t,r){s.deprecated("navigator.getUserMedia","navigator.mediaDevices.getUserMedia"),n.mediaDevices.getUserMedia(e).then(t,r)},55<t.version&&"autoGainControl"in n.mediaDevices.getSupportedConstraints()||(r=function(e,t,r){t in e&&!(r in e)&&(e[r]=e[t],delete e[t])},i=n.mediaDevices.getUserMedia.bind(n.mediaDevices),n.mediaDevices.getUserMedia=function(e){return"object"===c(e)&&"object"===c(e.audio)&&(e=JSON.parse(JSON.stringify(e)),r(e.audio,"autoGainControl","mozAutoGainControl"),r(e.audio,"noiseSuppression","mozNoiseSuppression")),i(e)},e&&e.prototype.getSettings&&(o=e.prototype.getSettings,e.prototype.getSettings=function(){var e=o.apply(this,arguments);return r(e,"mozAutoGainControl","autoGainControl"),r(e,"mozNoiseSuppression","noiseSuppression"),e}),e&&e.prototype.applyConstraints&&(a=e.prototype.applyConstraints,e.prototype.applyConstraints=function(e){return"audio"===this.kind&&"object"===c(e)&&(e=JSON.parse(JSON.stringify(e)),r(e,"autoGainControl","mozAutoGainControl"),r(e,"noiseSuppression","mozNoiseSuppression")),a.apply(this,[e])}))}};var s=function(e,t){if(!t&&e&&e.__esModule)return e;if(null===e||"object"!=c(e)&&"function"!=typeof e)return{default:e};t=a(t);if(t&&t.has(e))return t.get(e);var r,n={__proto__:null},i=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(r in e){var o;"default"!==r&&{}.hasOwnProperty.call(e,r)&&((o=i?Object.getOwnPropertyDescriptor(e,r):null)&&(o.get||o.set)?Object.defineProperty(n,r,o):n[r]=e[r])}return n.default=e,t&&t.set(e,n),n}(e("../utils"));function a(e){if("function"!=typeof WeakMap)return null;var t=new WeakMap,r=new WeakMap;return(a=function(e){return e?r:t})(e)}function c(e){return(c="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}},{"../utils":10}],9:[function(e,t,r){"use strict";Object.defineProperty(r,"__esModule",{value:!0}),r.shimAudioContext=function(e){"object"!==c(e)||e.AudioContext||(e.AudioContext=e.webkitAudioContext)},r.shimCallbacksAPI=function(e){var n,i,o,a,s,t;"object"===c(e)&&e.RTCPeerConnection&&(e=e.RTCPeerConnection.prototype,n=e.createOffer,i=e.createAnswer,o=e.setLocalDescription,a=e.setRemoteDescription,s=e.addIceCandidate,e.createOffer=function(e,t){var r=n.apply(this,[2<=arguments.length?arguments[2]:e]);return t?(r.then(e,t),Promise.resolve()):r},e.createAnswer=function(e,t){var r=i.apply(this,[2<=arguments.length?arguments[2]:e]);return t?(r.then(e,t),Promise.resolve()):r},t=function(e,t,r){e=o.apply(this,[e]);return r?(e.then(t,r),Promise.resolve()):e},e.setLocalDescription=t,t=function(e,t,r){e=a.apply(this,[e]);return r?(e.then(t,r),Promise.resolve()):e},e.setRemoteDescription=t,t=function(e,t,r){e=s.apply(this,[e]);return r?(e.then(t,r),Promise.resolve()):e},e.addIceCandidate=t)},r.shimConstraints=i,r.shimCreateOfferLegacy=function(e){var r=e.RTCPeerConnection.prototype.createOffer;e.RTCPeerConnection.prototype.createOffer=function(e){var t;return e&&(void 0!==e.offerToReceiveAudio&&(e.offerToReceiveAudio=!!e.offerToReceiveAudio),t=this.getTransceivers().find(function(e){return"audio"===e.receiver.track.kind}),!1===e.offerToReceiveAudio&&t?"sendrecv"===t.direction?t.setDirection?t.setDirection("sendonly"):t.direction="sendonly":"recvonly"===t.direction&&(t.setDirection?t.setDirection("inactive"):t.direction="inactive"):!0!==e.offerToReceiveAudio||t||this.addTransceiver("audio",{direction:"recvonly"}),void 0!==e.offerToReceiveVideo&&(e.offerToReceiveVideo=!!e.offerToReceiveVideo),t=this.getTransceivers().find(function(e){return"video"===e.receiver.track.kind}),!1===e.offerToReceiveVideo&&t?"sendrecv"===t.direction?t.setDirection?t.setDirection("sendonly"):t.direction="sendonly":"recvonly"===t.direction&&(t.setDirection?t.setDirection("inactive"):t.direction="inactive"):!0!==e.offerToReceiveVideo||t||this.addTransceiver("video",{direction:"recvonly"})),r.apply(this,arguments)}},r.shimGetUserMedia=function(e){var n=e&&e.navigator;{var t;n.mediaDevices&&n.mediaDevices.getUserMedia&&(e=n.mediaDevices,t=e.getUserMedia.bind(e),n.mediaDevices.getUserMedia=function(e){return t(i(e))})}!n.getUserMedia&&n.mediaDevices&&n.mediaDevices.getUserMedia&&(n.getUserMedia=function(e,t,r){n.mediaDevices.getUserMedia(e).then(t,r)}.bind(n))},r.shimLocalStreamsAPI=function(e){var o;"object"===c(e)&&e.RTCPeerConnection&&("getLocalStreams"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.getLocalStreams=function(){return this._localStreams||(this._localStreams=[]),this._localStreams}),"addStream"in e.RTCPeerConnection.prototype||(o=e.RTCPeerConnection.prototype.addTrack,e.RTCPeerConnection.prototype.addStream=function(t){var r=this;this._localStreams||(this._localStreams=[]),this._localStreams.includes(t)||this._localStreams.push(t),t.getAudioTracks().forEach(function(e){return o.call(r,e,t)}),t.getVideoTracks().forEach(function(e){return o.call(r,e,t)})},e.RTCPeerConnection.prototype.addTrack=function(e){for(var t=this,r=arguments.length,n=new Array(1<r?r-1:0),i=1;i<r;i++)n[i-1]=arguments[i];return n&&n.forEach(function(e){t._localStreams?t._localStreams.includes(e)||t._localStreams.push(e):t._localStreams=[e]}),o.apply(this,arguments)}),"removeStream"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.removeStream=function(e){var t,r=this,n=(this._localStreams||(this._localStreams=[]),this._localStreams.indexOf(e));-1!==n&&(this._localStreams.splice(n,1),t=e.getTracks(),this.getSenders().forEach(function(e){t.includes(e.track)&&r.removeTrack(e)}))}))},r.shimRTCIceServerUrls=function(e){var o;e.RTCPeerConnection&&(o=e.RTCPeerConnection,e.RTCPeerConnection=function(e,t){if(e&&e.iceServers){for(var r=[],n=0;n<e.iceServers.length;n++){var i=e.iceServers[n];void 0===i.urls&&i.url?(a.deprecated("RTCIceServer.url","RTCIceServer.urls"),(i=JSON.parse(JSON.stringify(i))).urls=i.url,delete i.url,r.push(i)):r.push(e.iceServers[n])}e.iceServers=r}return new o(e,t)},e.RTCPeerConnection.prototype=o.prototype,"generateCertificate"in o&&Object.defineProperty(e.RTCPeerConnection,"generateCertificate",{get:function(){return o.generateCertificate}}))},r.shimRemoteStreamsAPI=function(e){var t;"object"===c(e)&&e.RTCPeerConnection&&("getRemoteStreams"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.getRemoteStreams=function(){return this._remoteStreams||[]}),"onaddstream"in e.RTCPeerConnection.prototype||(Object.defineProperty(e.RTCPeerConnection.prototype,"onaddstream",{get:function(){return this._onaddstream},set:function(e){var r=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){var t;r._remoteStreams||(r._remoteStreams=[]),r._remoteStreams.includes(e)||(r._remoteStreams.push(e),(t=new Event("addstream")).stream=e,r.dispatchEvent(t))})})}}),t=e.RTCPeerConnection.prototype.setRemoteDescription,e.RTCPeerConnection.prototype.setRemoteDescription=function(){var r=this;return this._onaddstreampoly||this.addEventListener("track",this._onaddstreampoly=function(e){e.streams.forEach(function(e){var t;r._remoteStreams||(r._remoteStreams=[]),0<=r._remoteStreams.indexOf(e)||(r._remoteStreams.push(e),(t=new Event("addstream")).stream=e,r.dispatchEvent(t))})}),t.apply(r,arguments)}))},r.shimTrackEventTransceiver=function(e){"object"===c(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}}})};var a=function(e,t){if(!t&&e&&e.__esModule)return e;if(null===e||"object"!=c(e)&&"function"!=typeof e)return{default:e};t=s(t);if(t&&t.has(e))return t.get(e);var r,n={__proto__:null},i=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(r in e){var o;"default"!==r&&{}.hasOwnProperty.call(e,r)&&((o=i?Object.getOwnPropertyDescriptor(e,r):null)&&(o.get||o.set)?Object.defineProperty(n,r,o):n[r]=e[r])}return n.default=e,t&&t.set(e,n),n}(e("../utils"));function s(e){if("function"!=typeof WeakMap)return null;var t=new WeakMap,r=new WeakMap;return(s=function(e){return e?r:t})(e)}function c(e){return(c="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function i(e){return e&&void 0!==e.video?Object.assign({},e,{video:a.compactObject(e.video)}):e}},{"../utils":10}],10:[function(e,t,r){"use strict";function a(e,t,r){return(t=function(e){e=function(e,t){if("object"!=n(e)||!e)return e;var r=e[Symbol.toPrimitive];if(void 0===r)return("string"===t?String:Number)(e);r=r.call(e,t||"default");if("object"!=n(r))return r;throw new TypeError("@@toPrimitive must return a primitive value.")}(e,"string");return"symbol"==n(e)?e:e+""}(t))in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function n(e){return(n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}Object.defineProperty(r,"__esModule",{value:!0}),r.compactObject=function i(o){if(!c(o))return o;return Object.keys(o).reduce(function(e,t){var r=c(o[t]),n=r?i(o[t]):o[t],r=r&&!Object.keys(n).length;return void 0===n||r?e:Object.assign(e,a({},t,n))},{})},r.deprecated=function(e,t){o&&console.warn(e+" is deprecated, please use "+t+" instead.")},r.detectBrowser=function(e){var t={browser:null,version:null};if(void 0===e||!e.navigator||!e.navigator.userAgent)return t.browser="Not a browser.",t;var r=e.navigator;if(r.userAgentData&&r.userAgentData.brands){var n=r.userAgentData.brands.find(function(e){return"Chromium"===e.brand});if(n)return{browser:"chrome",version:parseInt(n.version,10)}}if(r.mozGetUserMedia)t.browser="firefox",t.version=s(r.userAgent,/Firefox\/(\d+)\./,1);else if(r.webkitGetUserMedia||!1===e.isSecureContext&&e.webkitRTCPeerConnection)t.browser="chrome",t.version=s(r.userAgent,/Chrom(e|ium)\/(\d+)\./,2);else{if(!e.RTCPeerConnection||!r.userAgent.match(/AppleWebKit\/(\d+)\./))return t.browser="Not a supported browser.",t;t.browser="safari",t.version=s(r.userAgent,/AppleWebKit\/(\d+)\./,1),t.supportsUnifiedPlan=e.RTCRtpTransceiver&&"currentDirection"in e.RTCRtpTransceiver.prototype}return t},r.disableLog=function(e){return"boolean"==typeof e?(i=e)?"adapter.js logging disabled":"adapter.js logging enabled":new Error("Argument type: "+n(e)+". Please use a boolean.")},r.disableWarnings=function(e){return"boolean"==typeof e?(o=!e,"adapter.js deprecation warnings "+(e?"disabled":"enabled")):new Error("Argument type: "+n(e)+". Please use a boolean.")},r.extractVersion=s,r.filterStats=function(r,t,e){var n=e?"outbound-rtp":"inbound-rtp",i=new Map;if(null===t)return i;var o=[];return r.forEach(function(e){"track"===e.type&&e.trackIdentifier===t.id&&o.push(e)}),o.forEach(function(t){r.forEach(function(e){e.type===n&&e.trackId===t.id&&p(r,e,i)})}),i},r.log=function(){"object"!==("undefined"==typeof window?"undefined":n(window))||i||"undefined"!=typeof console&&"function"==typeof console.log&&console.log.apply(console,arguments)},r.walkStats=p,r.wrapPeerConnectionEvent=function(e,n,i){var o,a;e.RTCPeerConnection&&(e=e.RTCPeerConnection.prototype,o=e.addEventListener,e.addEventListener=function(e,t){if(e!==n)return o.apply(this,arguments);function r(e){(e=i(e))&&(t.handleEvent?t.handleEvent(e):t(e))}return this._eventMap=this._eventMap||{},this._eventMap[n]||(this._eventMap[n]=new Map),this._eventMap[n].set(t,r),o.apply(this,[e,r])},a=e.removeEventListener,e.removeEventListener=function(e,t){if(e!==n||!this._eventMap||!this._eventMap[n])return a.apply(this,arguments);if(!this._eventMap[n].has(t))return a.apply(this,arguments);var r=this._eventMap[n].get(t);return this._eventMap[n].delete(t),0===this._eventMap[n].size&&delete this._eventMap[n],0===Object.keys(this._eventMap).length&&delete this._eventMap,a.apply(this,[e,r])},Object.defineProperty(e,"on"+n,{get:function(){return this["_on"+n]},set:function(e){this["_on"+n]&&(this.removeEventListener(n,this["_on"+n]),delete this["_on"+n]),e&&this.addEventListener(n,this["_on"+n]=e)},enumerable:!0,configurable:!0}))};var i=!0,o=!0;function s(e,t,r){e=e.match(t);return e&&e.length>=r&&parseInt(e[r],10)}function c(e){return"[object Object]"===Object.prototype.toString.call(e)}function p(t,r,n){r&&!n.has(r.id)&&(n.set(r.id,r),Object.keys(r).forEach(function(e){e.endsWith("Id")?p(t,t.get(r[e]),n):e.endsWith("Ids")&&r[e].forEach(function(e){p(t,t.get(e),n)})}))}},{}],11:[function(e,t,r){"use strict";var n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e},p={generateIdentifier:function(){return Math.random().toString(36).substring(2,12)}};p.localCName=p.generateIdentifier(),p.splitLines=function(e){return e.trim().split("\n").map(function(e){return e.trim()})},p.splitSections=function(e){return e.split("\nm=").map(function(e,t){return(0<t?"m="+e:e).trim()+"\r\n"})},p.getDescription=function(e){e=p.splitSections(e);return e&&e[0]},p.getMediaSections=function(e){e=p.splitSections(e);return e.shift(),e},p.matchPrefix=function(e,t){return p.splitLines(e).filter(function(e){return 0===e.indexOf(t)})},p.parseCandidate=function(e){for(var t=void 0,r={foundation:(t=(0===e.indexOf("a=candidate:")?e.substring(12):e.substring(10)).split(" "))[0],component:{1:"rtp",2:"rtcp"}[t[1]]||t[1],protocol:t[2].toLowerCase(),priority:parseInt(t[3],10),ip:t[4],address:t[4],port:parseInt(t[5],10),type:t[7]},n=8;n<t.length;n+=2)switch(t[n]){case"raddr":r.relatedAddress=t[n+1];break;case"rport":r.relatedPort=parseInt(t[n+1],10);break;case"tcptype":r.tcpType=t[n+1];break;case"ufrag":r.ufrag=t[n+1],r.usernameFragment=t[n+1];break;default:void 0===r[t[n]]&&(r[t[n]]=t[n+1])}return r},p.writeCandidate=function(e){var t=[],r=(t.push(e.foundation),e.component),r=("rtp"===r?t.push(1):"rtcp"===r?t.push(2):t.push(r),t.push(e.protocol.toUpperCase()),t.push(e.priority),t.push(e.address||e.ip),t.push(e.port),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(" ")},p.parseIceOptions=function(e){return e.substring(14).split(" ")},p.parseRtpMap=function(e){var e=e.substring(9).split(" "),t={payloadType:parseInt(e.shift(),10)},e=e[0].split("/");return t.name=e[0],t.clockRate=parseInt(e[1],10),t.channels=3===e.length?parseInt(e[2],10):1,t.numChannels=t.channels,t},p.writeRtpMap=function(e){var t=e.payloadType,r=(void 0!==e.preferredPayloadType&&(t=e.preferredPayloadType),e.channels||e.numChannels||1);return"a=rtpmap:"+t+" "+e.name+"/"+e.clockRate+(1!==r?"/"+r:"")+"\r\n"},p.parseExtmap=function(e){e=e.substring(9).split(" ");return{id:parseInt(e[0],10),direction:0<e[0].indexOf("/")?e[0].split("/")[1]:"sendrecv",uri:e[1],attributes:e.slice(2).join(" ")}},p.writeExtmap=function(e){return"a=extmap:"+(e.id||e.preferredId)+(e.direction&&"sendrecv"!==e.direction?"/"+e.direction:"")+" "+e.uri+(e.attributes?" "+e.attributes:"")+"\r\n"},p.parseFmtp=function(e){for(var t={},r=void 0,n=e.substring(e.indexOf(" ")+1).split(";"),i=0;i<n.length;i++)t[(r=n[i].trim().split("="))[0].trim()]=r[1];return t},p.writeFmtp=function(t){var r,e="",n=t.payloadType;return void 0!==t.preferredPayloadType&&(n=t.preferredPayloadType),t.parameters&&Object.keys(t.parameters).length&&(r=[],Object.keys(t.parameters).forEach(function(e){void 0!==t.parameters[e]?r.push(e+"="+t.parameters[e]):r.push(e)}),e+="a=fmtp:"+n+" "+r.join(";")+"\r\n"),e},p.parseRtcpFb=function(e){e=e.substring(e.indexOf(" ")+1).split(" ");return{type:e.shift(),parameter:e.join(" ")}},p.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},p.parseSsrcMedia=function(e){var t=e.indexOf(" "),r={ssrc:parseInt(e.substring(7,t),10)},n=e.indexOf(":",t);return-1<n?(r.attribute=e.substring(t+1,n),r.value=e.substring(n+1)):r.attribute=e.substring(t+1),r},p.parseSsrcGroup=function(e){e=e.substring(13).split(" ");return{semantics:e.shift(),ssrcs:e.map(function(e){return parseInt(e,10)})}},p.getMid=function(e){e=p.matchPrefix(e,"a=mid:")[0];if(e)return e.substring(6)},p.parseFingerprint=function(e){e=e.substring(14).split(" ");return{algorithm:e[0].toLowerCase(),value:e[1].toUpperCase()}},p.getDtlsParameters=function(e,t){return{role:"auto",fingerprints:p.matchPrefix(e+t,"a=fingerprint:").map(p.parseFingerprint)}},p.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},p.parseCryptoLine=function(e){e=e.substring(9).split(" ");return{tag:parseInt(e[0],10),cryptoSuite:e[1],keyParams:e[2],sessionParams:e.slice(3)}},p.writeCryptoLine=function(e){return"a=crypto:"+e.tag+" "+e.cryptoSuite+" "+("object"===n(e.keyParams)?p.writeCryptoKeyParams(e.keyParams):e.keyParams)+(e.sessionParams?" "+e.sessionParams.join(" "):"")+"\r\n"},p.parseCryptoKeyParams=function(e){if(0!==e.indexOf("inline:"))return null;e=e.substring(7).split("|");return{keyMethod:"inline",keySalt:e[0],lifeTime:e[1],mkiValue:e[2]?e[2].split(":")[0]:void 0,mkiLength:e[2]?e[2].split(":")[1]:void 0}},p.writeCryptoKeyParams=function(e){return e.keyMethod+":"+e.keySalt+(e.lifeTime?"|"+e.lifeTime:"")+(e.mkiValue&&e.mkiLength?"|"+e.mkiValue+":"+e.mkiLength:"")},p.getCryptoParameters=function(e,t){return p.matchPrefix(e+t,"a=crypto:").map(p.parseCryptoLine)},p.getIceParameters=function(e,t){var r=p.matchPrefix(e+t,"a=ice-ufrag:")[0],e=p.matchPrefix(e+t,"a=ice-pwd:")[0];return r&&e?{usernameFragment:r.substring(12),password:e.substring(10)}:null},p.writeIceParameters=function(e){var t="a=ice-ufrag:"+e.usernameFragment+"\r\na=ice-pwd:"+e.password+"\r\n";return e.iceLite&&(t+="a=ice-lite\r\n"),t},p.parseRtpParameters=function(e){var t={codecs:[],headerExtensions:[],fecMechanisms:[],rtcp:[]},r=p.splitLines(e)[0].split(" ");t.profile=r[2];for(var n=3;n<r.length;n++){var i=r[n],o=p.matchPrefix(e,"a=rtpmap:"+i+" ")[0];if(o){var a=p.parseRtpMap(o),o=p.matchPrefix(e,"a=fmtp:"+i+" ");switch(a.parameters=o.length?p.parseFmtp(o[0]):{},a.rtcpFeedback=p.matchPrefix(e,"a=rtcp-fb:"+i+" ").map(p.parseRtcpFb),t.codecs.push(a),a.name.toUpperCase()){case"RED":case"ULPFEC":t.fecMechanisms.push(a.name.toUpperCase())}}}p.matchPrefix(e,"a=extmap:").forEach(function(e){t.headerExtensions.push(p.parseExtmap(e))});var s=p.matchPrefix(e,"a=rtcp-fb:* ").map(p.parseRtcpFb);return t.codecs.forEach(function(e){s.forEach(function(t){e.rtcpFeedback.find(function(e){return e.type===t.type&&e.parameter===t.parameter})||e.rtcpFeedback.push(t)})}),t},p.writeRtpDescription=function(e,t){var r="",n=(r=(r=(r=(r=(r+="m="+e+" ")+(0<t.codecs.length?"9":"0"))+(" "+(t.profile||"UDP/TLS/RTP/SAVPF")+" "))+(t.codecs.map(function(e){return void 0!==e.preferredPayloadType?e.preferredPayloadType:e.payloadType}).join(" ")+"\r\n"))+"c=IN IP4 0.0.0.0\r\n"+"a=rtcp:9 IN IP4 0.0.0.0\r\n",t.codecs.forEach(function(e){r=(r=(r+=p.writeRtpMap(e))+p.writeFmtp(e))+p.writeRtcpFb(e)}),0);return t.codecs.forEach(function(e){e.maxptime>n&&(n=e.maxptime)}),0<n&&(r+="a=maxptime:"+n+"\r\n"),t.headerExtensions&&t.headerExtensions.forEach(function(e){r+=p.writeExtmap(e)}),r},p.parseRtpEncodingParameters=function(e){var t=[],r=p.parseRtpParameters(e),n=-1!==r.fecMechanisms.indexOf("RED"),i=-1!==r.fecMechanisms.indexOf("ULPFEC"),o=p.matchPrefix(e,"a=ssrc:").map(function(e){return p.parseSsrcMedia(e)}).filter(function(e){return"cname"===e.attribute}),a=0<o.length&&o[0].ssrc,s=void 0,o=p.matchPrefix(e,"a=ssrc-group:FID").map(function(e){return e.substring(17).split(" ").map(function(e){return parseInt(e,10)})}),c=(0<o.length&&1<o[0].length&&o[0][0]===a&&(s=o[0][1]),r.codecs.forEach(function(e){"RTX"===e.name.toUpperCase()&&e.parameters.apt&&(e={ssrc:a,codecPayloadType:parseInt(e.parameters.apt,10)},a&&s&&(e.rtx={ssrc:s}),t.push(e),n&&((e=JSON.parse(JSON.stringify(e))).fec={ssrc:a,mechanism:i?"red+ulpfec":"red"},t.push(e)))}),0===t.length&&a&&t.push({ssrc:a}),p.matchPrefix(e,"b="));return c.length&&(c=0===c[0].indexOf("b=TIAS:")?parseInt(c[0].substring(7),10):0===c[0].indexOf("b=AS:")?1e3*parseInt(c[0].substring(5),10)*.95-16e3:void 0,t.forEach(function(e){e.maxBitrate=c})),t},p.parseRtcpParameters=function(e){var t={},r=p.matchPrefix(e,"a=ssrc:").map(function(e){return p.parseSsrcMedia(e)}).filter(function(e){return"cname"===e.attribute})[0],r=(r&&(t.cname=r.value,t.ssrc=r.ssrc),p.matchPrefix(e,"a=rtcp-rsize")),r=(t.reducedSize=0<r.length,t.compound=0===r.length,p.matchPrefix(e,"a=rtcp-mux"));return t.mux=0<r.length,t},p.writeRtcpParameters=function(e){var t="";return e.reducedSize&&(t+="a=rtcp-rsize\r\n"),e.mux&&(t+="a=rtcp-mux\r\n"),void 0!==e.ssrc&&e.cname&&(t+="a=ssrc:"+e.ssrc+" cname:"+e.cname+"\r\n"),t},p.parseMsid=function(e){var t=void 0,r=p.matchPrefix(e,"a=msid:");if(1===r.length)return{stream:(t=r[0].substring(7).split(" "))[0],track:t[1]};r=p.matchPrefix(e,"a=ssrc:").map(function(e){return p.parseSsrcMedia(e)}).filter(function(e){return"msid"===e.attribute});return 0<r.length?{stream:(t=r[0].value.split(" "))[0],track:t[1]}:void 0},p.parseSctpDescription=function(e){var t=p.parseMLine(e),r=p.matchPrefix(e,"a=max-message-size:"),n=void 0,r=(0<r.length&&(n=parseInt(r[0].substring(19),10)),isNaN(n)&&(n=65536),p.matchPrefix(e,"a=sctp-port:"));if(0<r.length)return{port:parseInt(r[0].substring(12),10),protocol:t.fmt,maxMessageSize:n};r=p.matchPrefix(e,"a=sctpmap:");return 0<r.length?(t=r[0].substring(10).split(" "),{port:parseInt(t[0],10),protocol:t[1],maxMessageSize:n}):void 0},p.writeSctpDescription=function(e,t){var r=[],r="DTLS/SCTP"!==e.protocol?["m="+e.kind+" 9 "+e.protocol+" "+t.protocol+"\r\n","c=IN IP4 0.0.0.0\r\n","a=sctp-port:"+t.port+"\r\n"]:["m="+e.kind+" 9 "+e.protocol+" "+t.port+"\r\n","c=IN IP4 0.0.0.0\r\n","a=sctpmap:"+t.port+" "+t.protocol+" 65535\r\n"];return void 0!==t.maxMessageSize&&r.push("a=max-message-size:"+t.maxMessageSize+"\r\n"),r.join("")},p.generateSessionId=function(){return Math.random().toString().substr(2,22)},p.writeSessionBoilerplate=function(e,t,r){t=void 0!==t?t:2;return"v=0\r\no="+(r||"thisisadapterortc")+" "+(e||p.generateSessionId())+" "+t+" IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\n"},p.getDirection=function(e,t){for(var r=p.splitLines(e),n=0;n<r.length;n++)switch(r[n]){case"a=sendrecv":case"a=sendonly":case"a=recvonly":case"a=inactive":return r[n].substring(2)}return t?p.getDirection(t):"sendrecv"},p.getKind=function(e){return p.splitLines(e)[0].split(" ")[0].substring(2)},p.isRejected=function(e){return"0"===e.split(" ",2)[1]},p.parseMLine=function(e){e=p.splitLines(e)[0].substring(2).split(" ");return{kind:e[0],port:parseInt(e[1],10),protocol:e[2],fmt:e.slice(3).join(" ")}},p.parseOLine=function(e){e=p.matchPrefix(e,"o=")[0].substring(2).split(" ");return{username:e[0],sessionId:e[1],sessionVersion:parseInt(e[2],10),netType:e[3],addressType:e[4],address:e[5]}},p.isValidSDP=function(e){if("string"!=typeof e||0===e.length)return!1;for(var t=p.splitLines(e),r=0;r<t.length;r++)if(t[r].length<2||"="!==t[r].charAt(1))return!1;return!0},"object"===(void 0===t?"undefined":n(t))&&(t.exports=p)},{}]},{},[1])(1)});