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i=e.RTCPeerConnection.prototype.addTrack;i&&(e.RTCPeerConnection.prototype.addTrack=function(){var R=i.apply(this,arguments);return R._pc=this,R}),e.RTCRtpSender.prototype.getStats=function(){var R=this;return this._pc.getStats().then(function(E){return ee.filterStats(E,R.track,!0)})}}if(!("getStats"in e.RTCRtpReceiver.prototype)){var d=e.RTCPeerConnection.prototype.getReceivers;d&&(e.RTCPeerConnection.prototype.getReceivers=function(){var R=this,E=d.apply(this,[]);return E.forEach(function(k){return k._pc=R}),E}),ee.wrapPeerConnectionEvent(e,"track",function(D){return D.receiver._pc=D.srcElement,D}),e.RTCRtpReceiver.prototype.getStats=function(){var R=this;return this._pc.getStats().then(function(E){return ee.filterStats(E,R.track,!1)})}}if("getStats"in e.RTCRtpSender.prototype&&"getStats"in e.RTCRtpReceiver.prototype){var S=e.RTCPeerConnection.prototype.getStats;e.RTCPeerConnection.prototype.getStats=function(){if(arguments.length>0&&arguments[0]instanceof e.MediaStreamTrack){var E,k,o,R=arguments[0];return this.getSenders().forEach(function(T){T.track===R&&(E?o=!0:E=T)}),this.getReceivers().forEach(function(T){return T.track===R&&(k?o=!0:k=T),T.track===R}),o||E&&k?Promise.reject(new DOMException("There are more than one sender or receiver for the track.","InvalidAccessError")):E?E.getStats():k?k.getStats():Promise.reject(new DOMException("There is no sender or receiver for the track.","InvalidAccessError"))}return S.apply(this,arguments)}}}};var ee=function t(e,s){if(!s&&e&&e.__esModule)return e;if(null===e||"object"!=j(e)&&"function"!=typeof e)return{default:e};var i=n(s);if(i&&i.has(e))return i.get(e);var d={__proto__:null},S=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var D in e)if("default"!==D&&{}.hasOwnProperty.call(e,D)){var R=S?Object.getOwnPropertyDescriptor(e,D):null;R&&(R.get||R.set)?Object.defineProperty(d,D,R):d[D]=e[D]}return d.default=e,i&&i.set(e,d),d}(ce("../utils.js")),y=ce("./getusermedia");function n(e){if("function"!=typeof 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s=e.RTCPeerConnection.prototype.addTrack;e.RTCPeerConnection.prototype.addTrack=function(R,E){if(!E)return s.apply(this,arguments);this._shimmedLocalStreams=this._shimmedLocalStreams||{};var k=s.apply(this,arguments);return this._shimmedLocalStreams[E.id]?-1===this._shimmedLocalStreams[E.id].indexOf(k)&&this._shimmedLocalStreams[E.id].push(k):this._shimmedLocalStreams[E.id]=[E,k],k};var i=e.RTCPeerConnection.prototype.addStream;e.RTCPeerConnection.prototype.addStream=function(R){var E=this;this._shimmedLocalStreams=this._shimmedLocalStreams||{},R.getTracks().forEach(function(T){if(E.getSenders().find(function(N){return N.track===T}))throw new DOMException("Track already exists.","InvalidAccessError")});var k=this.getSenders();i.apply(this,arguments);var o=this.getSenders().filter(function(T){return-1===k.indexOf(T)});this._shimmedLocalStreams[R.id]=[R].concat(o)};var d=e.RTCPeerConnection.prototype.removeStream;e.RTCPeerConnection.prototype.removeStream=function(R){return 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