!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;er.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}))},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.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.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"!==(void 0===e?"undefined":o(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])})}))},e("sdp")),s=(r=r)&&r.__esModule?r:{default:r},n=function(e){{if(e&&e.__esModule)return e;var t={};if(null!=e)for(var r in e)Object.prototype.hasOwnProperty.call(e,r)&&(t[r]=e[r]);return t.default=e,t}}(e("./utils"))},{"./utils":11,sdp:12}],7:[function(e,t,r){"use strict";Object.defineProperty(r,"__esModule",{value:!0}),r.shimGetDisplayMedia=r.shimGetUserMedia=void 0;var 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},n=e("./getusermedia"),i=(Object.defineProperty(r,"shimGetUserMedia",{enumerable:!0,get:function(){return n.shimGetUserMedia}}),e("./getdisplaymedia"));Object.defineProperty(r,"shimGetDisplayMedia",{enumerable:!0,get:function(){return i.shimGetDisplayMedia}}),r.shimOnTrack=function(e){"object"===(void 0===e?"undefined":a(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"===(void 0===n?"undefined":a(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 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.shimSenderGetStats=function(e){var r,t;"object"===(void 0===e?"undefined":a(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)}))},r.shimReceiverGetStats=function(e){var r;"object"===(void 0===e?"undefined":a(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}),o.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;o.deprecated("removeStream","removeTrack"),this.getSenders().forEach(function(e){e.track&&t.getTracks().includes(e.track)&&r.removeTrack(e)})})},r.shimRTCDataChannel=function(e){e.DataChannel&&!e.RTCDataChannel&&(e.RTCDataChannel=e.DataChannel)},r.shimAddTransceiver=function(e){var i;"object"!==(void 0===e?"undefined":a(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=[].concat(function(e){{if(Array.isArray(e)){for(var t=0,r=Array(e.length);t= 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.shimGetParameters=function(e){var t;"object"!==(void 0===e?"undefined":a(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})},r.shimCreateOffer=function(e){var r;"object"===(void 0===e?"undefined":a(e))&&e.RTCPeerConnection&&(r=e.RTCPeerConnection.prototype.createOffer,e.RTCPeerConnection.prototype.createOffer=function(){var e=this,t=arguments;return this.setParametersPromises&&this.setParametersPromises.length?Promise.all(this.setParametersPromises).then(function(){return r.apply(e,t)}).finally(function(){e.setParametersPromises=[]}):r.apply(this,arguments)})},r.shimCreateAnswer=function(e){var r;"object"===(void 0===e?"undefined":a(e))&&e.RTCPeerConnection&&(r=e.RTCPeerConnection.prototype.createAnswer,e.RTCPeerConnection.prototype.createAnswer=function(){var e=this,t=arguments;return this.setParametersPromises&&this.setParametersPromises.length?Promise.all(this.setParametersPromises).then(function(){return r.apply(e,t)}).finally(function(){e.setParametersPromises=[]}):r.apply(this,arguments)})};var o=function(e){{if(e&&e.__esModule)return e;var t={};if(null!=e)for(var r in e)Object.prototype.hasOwnProperty.call(e,r)&&(t[r]=e[r]);return t.default=e,t}}(e("../utils"))},{"../utils":11,"./getdisplaymedia":8,"./getusermedia":9}],8:[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))})}},{}],9:[function(e,t,r){"use strict";Object.defineProperty(r,"__esModule",{value:!0});var 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};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){c.deprecated("navigator.getUserMedia","navigator.mediaDevices.getUserMedia"),n.mediaDevices.getUserMedia(e).then(t,r)},55=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)})}))}},{}],12:[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).substr(2,10)}};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(0n&&(n=e.maxptime)}),0