Module 528416

function(){(function(){function e(t,n,r){function i(a,o){if(!n[a]){if(!t[a]){var l=void 0;if(!o&&l)return require(a,!0);if(s)return s(a,!0);var u=Error("Cannot find module '"+a+"'");throw u.code="MODULE_NOT_FOUND",u}var c=n[a]={exports:{}};t[a][0].call(c.exports,function(e){return i(t[a][1][e]||e)},c,c.exports,e,t,n,r)}return n[a].exports}for(var s=void 0,a=0;a<r.length;a++)i(r[a]);return i}return e})()({1:[function(e,t,n){"use strict";t.exports=(0,e("./adapter_factory.js").adapterFactory)({window:"u"<typeof window?void 0:window})},{"./adapter_factory.js":2}],2:[function(e,t,n){"use strict";Object.defineProperty(n,"__esModule",{value:!0}),n.adapterFactory=c;var r=u(e("./utils")),i=u(e("./chrome/chrome_shim")),s=u(e("./edge/edge_shim")),a=u(e("./firefox/firefox_shim")),o=u(e("./safari/safari_shim")),l=u(e("./common_shim"));function u(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 c(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},t=e.window,n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{shimChrome:!0,shimFirefox:!0,shimEdge:!0,shimSafari:!0},u=r.log,c=r.detectBrowser(t),d={browserDetails:c,commonShim:l,extractVersion:r.extractVersion,disableLog:r.disableLog,disableWarnings:r.disableWarnings};switch(c.browser){case"chrome":if(!i||!i.shimPeerConnection||!n.shimChrome){u("Chrome shim is not included in this adapter release.");break}if(null===c.version){u("Chrome shim can not determine version, not shimming.");break}u("adapter.js shimming chrome."),d.browserShim=i,l.shimAddIceCandidateNullOrEmpty(t,c),i.shimGetUserMedia(t,c),i.shimMediaStream(t,c),i.shimPeerConnection(t,c),i.shimOnTrack(t,c),i.shimAddTrackRemoveTrack(t,c),i.shimGetSendersWithDtmf(t,c),i.shimGetStats(t,c),i.shimSenderReceiverGetStats(t,c),i.fixNegotiationNeeded(t,c),l.shimRTCIceCandidate(t,c),l.shimConnectionState(t,c),l.shimMaxMessageSize(t,c),l.shimSendThrowTypeError(t,c),l.removeExtmapAllowMixed(t,c);break;case"firefox":if(!a||!a.shimPeerConnection||!n.shimFirefox){u("Firefox shim is not included in this adapter release.");break}u("adapter.js shimming firefox."),d.browserShim=a,l.shimAddIceCandidateNullOrEmpty(t,c),a.shimGetUserMedia(t,c),a.shimPeerConnection(t,c),a.shimOnTrack(t,c),a.shimRemoveStream(t,c),a.shimSenderGetStats(t,c),a.shimReceiverGetStats(t,c),a.shimRTCDataChannel(t,c),a.shimAddTransceiver(t,c),a.shimGetParameters(t,c),a.shimCreateOffer(t,c),a.shimCreateAnswer(t,c),l.shimRTCIceCandidate(t,c),l.shimConnectionState(t,c),l.shimMaxMessageSize(t,c),l.shimSendThrowTypeError(t,c);break;case"edge":if(!s||!s.shimPeerConnection||!n.shimEdge){u("MS edge shim is not included in this adapter release.");break}u("adapter.js shimming edge."),d.browserShim=s,s.shimGetUserMedia(t,c),s.shimGetDisplayMedia(t,c),s.shimPeerConnection(t,c),s.shimReplaceTrack(t,c),l.shimMaxMessageSize(t,c),l.shimSendThrowTypeError(t,c);break;case"safari":if(!o||!n.shimSafari){u("Safari shim is not included in this adapter release.");break}u("adapter.js shimming safari."),d.browserShim=o,l.shimAddIceCandidateNullOrEmpty(t,c),o.shimRTCIceServerUrls(t,c),o.shimCreateOfferLegacy(t,c),o.shimCallbacksAPI(t,c),o.shimLocalStreamsAPI(t,c),o.shimRemoteStreamsAPI(t,c),o.shimTrackEventTransceiver(t,c),o.shimGetUserMedia(t,c),o.shimAudioContext(t,c),l.shimRTCIceCandidate(t,c),l.shimMaxMessageSize(t,c),l.shimSendThrowTypeError(t,c),l.removeExtmapAllowMixed(t,c);break;default:u("Unsupported browser!")}return d}},{"./chrome/chrome_shim":3,"./common_shim":6,"./edge/edge_shim":12,"./firefox/firefox_shim":7,"./safari/safari_shim":10,"./utils":11}],3:[function(e,t,n){"use strict";Object.defineProperty(n,"__esModule",{value:!0}),n.shimGetDisplayMedia=n.shimGetUserMedia=void 0;var r="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},i=e("./getusermedia");Object.defineProperty(n,"shimGetUserMedia",{enumerable:!0,get:function(){return i.shimGetUserMedia}});var s=e("./getdisplaymedia");Object.defineProperty(n,"shimGetDisplayMedia",{enumerable:!0,get:function(){return s.shimGetDisplayMedia}}),n.shimMediaStream=u,n.shimOnTrack=c,n.shimGetSendersWithDtmf=d,n.shimGetStats=_,n.shimSenderReceiverGetStats=f,n.shimAddTrackRemoveTrackWithNative=p,n.shimAddTrackRemoveTrack=h,n.shimPeerConnection=m,n.fixNegotiationNeeded=E;var a=o(e("../utils.js"));function o(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 l(e,t,n){return t in e?Object.defineProperty(e,t,{value:n,enumerable:!0,configurable:!0,writable:!0}):e[t]=n,e}function u(e){e.MediaStream=e.MediaStream||e.webkitMediaStream}function c(e){if((void 0===e?"undefined":r(e))!=="object"||!e.RTCPeerConnection||"ontrack"in e.RTCPeerConnection.prototype)a.wrapPeerConnectionEvent(e,"track",function(e){return e.transceiver||Object.defineProperty(e,"transceiver",{value:{receiver:e.receiver}}),e});else{Object.defineProperty(e.RTCPeerConnection.prototype,"ontrack",{get:function(){return this._ontrack},set:function(e){this._ontrack&&this.removeEventListener("track",this._ontrack),this.addEventListener("track",this._ontrack=e)},enumerable:!0,configurable:!0});var t=e.RTCPeerConnection.prototype.setRemoteDescription;e.RTCPeerConnection.prototype.setRemoteDescription=function(){var n=this;return this._ontrackpoly||(this._ontrackpoly=function(t){t.stream.addEventListener("addtrack",function(r){var i=void 0;i=e.RTCPeerConnection.prototype.getReceivers?n.getReceivers().find(function(e){return e.track&&e.track.id===r.track.id}):{track:r.track};var s=new Event("track");s.track=r.track,s.receiver=i,s.transceiver={receiver:i},s.streams=[t.stream],n.dispatchEvent(s)}),t.stream.getTracks().forEach(function(r){var i=void 0;i=e.RTCPeerConnection.prototype.getReceivers?n.getReceivers().find(function(e){return e.track&&e.track.id===r.id}):{track:r};var s=new Event("track");s.track=r,s.receiver=i,s.transceiver={receiver:i},s.streams=[t.stream],n.dispatchEvent(s)})},this.addEventListener("addstream",this._ontrackpoly)),t.apply(this,arguments)}}}function d(e){if((void 0===e?"undefined":r(e))==="object"&&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=n.apply(this,arguments);return i||(i=t(this,e),this._senders.push(i)),i};var i=e.RTCPeerConnection.prototype.removeTrack;e.RTCPeerConnection.prototype.removeTrack=function(e){i.apply(this,arguments);var t=this._senders.indexOf(e);-1!==t&&this._senders.splice(t,1)}}var s=e.RTCPeerConnection.prototype.addStream;e.RTCPeerConnection.prototype.addStream=function(e){var n=this;this._senders=this._senders||[],s.apply(this,[e]),e.getTracks().forEach(function(e){n._senders.push(t(n,e))})};var a=e.RTCPeerConnection.prototype.removeStream;e.RTCPeerConnection.prototype.removeStream=function(e){var t=this;this._senders=this._senders||[],a.apply(this,[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((void 0===e?"undefined":r(e))==="object"&&e.RTCPeerConnection&&"getSenders"in e.RTCPeerConnection.prototype&&"createDTMFSender"in e.RTCPeerConnection.prototype&&e.RTCRtpSender&&!("dtmf"in e.RTCRtpSender.prototype)){var o=e.RTCPeerConnection.prototype.getSenders;e.RTCPeerConnection.prototype.getSenders=function(){var e=this,t=o.apply(this,[]);return t.forEach(function(t){return 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}})}}function _(e){if(e.RTCPeerConnection){var t=e.RTCPeerConnection.prototype.getStats;e.RTCPeerConnection.prototype.getStats=function(){var e=this,n=Array.prototype.slice.call(arguments),r=n[0],i=n[1],s=n[2];if(arguments.length>0&&"function"==typeof r)return t.apply(this,arguments);if(0===t.length&&(0==arguments.length||"function"!=typeof r))return t.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},o=function(e){return new Map(Object.keys(e).map(function(t){return[t,e[t]]}))};if(arguments.length>=2){var l=function(e){i(o(a(e)))};return t.apply(this,[l,r])}return new Promise(function(n,r){t.apply(e,[function(e){n(o(a(e)))},r])}).then(i,s)}}}function f(e){if((void 0===e?"undefined":r(e))==="object"&&e.RTCPeerConnection&&e.RTCRtpSender&&e.RTCRtpReceiver){if(!("getStats"in e.RTCRtpSender.prototype)){var t=e.RTCPeerConnection.prototype.getSenders;t&&(e.RTCPeerConnection.prototype.getSenders=function(){var e=this,n=t.apply(this,[]);return n.forEach(function(t){return t._pc=e}),n});var n=e.RTCPeerConnection.prototype.addTrack;n&&(e.RTCPeerConnection.prototype.addTrack=function(){var e=n.apply(this,arguments);return e._pc=this,e}),e.RTCRtpSender.prototype.getStats=function(){var e=this;return this._pc.getStats().then(function(t){return a.filterStats(t,e.track,!0)})}}if(!("getStats"in e.RTCRtpReceiver.prototype)){var i=e.RTCPeerConnection.prototype.getReceivers;i&&(e.RTCPeerConnection.prototype.getReceivers=function(){var e=this,t=i.apply(this,[]);return t.forEach(function(t){return t._pc=e}),t}),a.wrapPeerConnectionEvent(e,"track",function(e){return e.receiver._pc=e.srcElement,e}),e.RTCRtpReceiver.prototype.getStats=function(){var e=this;return this._pc.getStats().then(function(t){return a.filterStats(t,e.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 t=arguments[0],n=void 0,r=void 0,i=void 0;return(this.getSenders().forEach(function(e){e.track===t&&(n?i=!0:n=e)}),this.getReceivers().forEach(function(e){return e.track===t&&(r?i=!0:r=e),e.track===t}),i||n&&r)?Promise.reject(new DOMException("There are more than one sender or receiver for the track.","InvalidAccessError")):n?n.getStats():r?r.getStats():Promise.reject(new DOMException("There is no sender or receiver for the track.","InvalidAccessError"))}return s.apply(this,arguments)}}}}function p(e){e.RTCPeerConnection.prototype.getLocalStreams=function(){var e=this;return this._shimmedLocalStreams=this._shimmedLocalStreams||{},Object.keys(this._shimmedLocalStreams).map(function(t){return e._shimmedLocalStreams[t][0]})};var t=e.RTCPeerConnection.prototype.addTrack;e.RTCPeerConnection.prototype.addTrack=function(e,n){if(!n)return t.apply(this,arguments);this._shimmedLocalStreams=this._shimmedLocalStreams||{};var r=t.apply(this,arguments);return this._shimmedLocalStreams[n.id]?-1===this._shimmedLocalStreams[n.id].indexOf(r)&&this._shimmedLocalStreams[n.id].push(r):this._shimmedLocalStreams[n.id]=[n,r],r};var n=e.RTCPeerConnection.prototype.addStream;e.RTCPeerConnection.prototype.addStream=function(e){var t=this;this._shimmedLocalStreams=this._shimmedLocalStreams||{},e.getTracks().forEach(function(e){if(t.getSenders().find(function(t){return t.track===e}))throw new DOMException("Track already exists.","InvalidAccessError")});var r=this.getSenders();n.apply(this,arguments);var i=this.getSenders().filter(function(e){return -1===r.indexOf(e)});this._shimmedLocalStreams[e.id]=[e].concat(i)};var r=e.RTCPeerConnection.prototype.removeStream;e.RTCPeerConnection.prototype.removeStream=function(e){return this._shimmedLocalStreams=this._shimmedLocalStreams||{},delete this._shimmedLocalStreams[e.id],r.apply(this,arguments)};var i=e.RTCPeerConnection.prototype.removeTrack;e.RTCPeerConnection.prototype.removeTrack=function(e){var t=this;return this._shimmedLocalStreams=this._shimmedLocalStreams||{},e&&Object.keys(this._shimmedLocalStreams).forEach(function(n){var r=t._shimmedLocalStreams[n].indexOf(e);-1!==r&&t._shimmedLocalStreams[n].splice(r,1),1===t._shimmedLocalStreams[n].length&&delete t._shimmedLocalStreams[n]}),i.apply(this,arguments)}}function h(e,t){if(e.RTCPeerConnection){if(e.RTCPeerConnection.prototype.addTrack&&t.version>=65)return p(e);var n=e.RTCPeerConnection.prototype.getLocalStreams;e.RTCPeerConnection.prototype.getLocalStreams=function(){var e=this,t=n.apply(this);return this._reverseStreams=this._reverseStreams||{},t.map(function(t){return e._reverseStreams[t.id]})};var r=e.RTCPeerConnection.prototype.addStream;e.RTCPeerConnection.prototype.addStream=function(t){var n=this;if(this._streams=this._streams||{},this._reverseStreams=this._reverseStreams||{},t.getTracks().forEach(function(e){if(n.getSenders().find(function(t){return t.track===e}))throw new DOMException("Track already exists.","InvalidAccessError")}),!this._reverseStreams[t.id]){var i=new e.MediaStream(t.getTracks());this._streams[t.id]=i,this._reverseStreams[i.id]=t,t=i}r.apply(this,[t])};var i=e.RTCPeerConnection.prototype.removeStream;e.RTCPeerConnection.prototype.removeStream=function(e){this._streams=this._streams||{},this._reverseStreams=this._reverseStreams||{},i.apply(this,[this._streams[e.id]||e]),delete this._reverseStreams[this._streams[e.id]?this._streams[e.id].id:e.id],delete this._streams[e.id]},e.RTCPeerConnection.prototype.addTrack=function(t,n){var r=this;if("closed"===this.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(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 s=this._streams[n.id];if(s)s.addTrack(t),Promise.resolve().then(function(){r.dispatchEvent(new Event("negotiationneeded"))});else{var a=new e.MediaStream([t]);this._streams[n.id]=a,this._reverseStreams[a.id]=n,this.addStream(a)}return this.getSenders().find(function(e){return e.track===t})},["createOffer","createAnswer"].forEach(function(t){var n=e.RTCPeerConnection.prototype[t],r=l({},t,function(){var e=this,t=arguments,r=arguments.length&&"function"==typeof arguments[0];return r?n.apply(this,[function(n){var r=o(e,n);t[0].apply(null,[r])},function(e){t[1]&&t[1].apply(null,e)},arguments[2]]):n.apply(this,arguments).then(function(t){return o(e,t)})});e.RTCPeerConnection.prototype[t]=r[t]});var s=e.RTCPeerConnection.prototype.setLocalDescription;e.RTCPeerConnection.prototype.setLocalDescription=function(){return arguments.length&&arguments[0].type&&(arguments[0]=u(this,arguments[0])),s.apply(this,arguments)};var a=Object.getOwnPropertyDescriptor(e.RTCPeerConnection.prototype,"localDescription");Object.defineProperty(e.RTCPeerConnection.prototype,"localDescription",{get:function(){var e=a.get.apply(this);return""===e.type?e:o(this,e)}}),e.RTCPeerConnection.prototype.removeTrack=function(e){var t=this;if("closed"===this.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!==this)throw new DOMException("Sender was not created by this connection.","InvalidAccessError");this._streams=this._streams||{};var n=void 0;Object.keys(this._streams).forEach(function(r){t._streams[r].getTracks().find(function(t){return e.track===t})&&(n=t._streams[r])}),n&&(1===n.getTracks().length?this.removeStream(this._reverseStreams[n.id]):n.removeTrack(e.track),this.dispatchEvent(new Event("negotiationneeded")))}}function o(e,t){var n=t.sdp;return Object.keys(e._reverseStreams||[]).forEach(function(t){var r=e._reverseStreams[t],i=e._streams[r.id];n=n.replace(RegExp(i.id,"g"),r.id)}),new RTCSessionDescription({type:t.type,sdp:n})}function u(e,t){var n=t.sdp;return Object.keys(e._reverseStreams||[]).forEach(function(t){var r=e._reverseStreams[t],i=e._streams[r.id];n=n.replace(RegExp(r.id,"g"),i.id)}),new RTCSessionDescription({type:t.type,sdp:n})}}function m(e,t){!e.RTCPeerConnection&&e.webkitRTCPeerConnection&&(e.RTCPeerConnection=e.webkitRTCPeerConnection),e.RTCPeerConnection&&t.version<53&&["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach(function(t){var n=e.RTCPeerConnection.prototype[t],r=l({},t,function(){return arguments[0]=new("addIceCandidate"===t?e.RTCIceCandidate:e.RTCSessionDescription)(arguments[0]),n.apply(this,arguments)});e.RTCPeerConnection.prototype[t]=r[t]})}function E(e,t){a.wrapPeerConnectionEvent(e,"negotiationneeded",function(e){var n=e.target;if(!(t.version<72)&&(!n.getConfiguration||"plan-b"!==n.getConfiguration().sdpSemantics)||"stable"===n.signalingState)return e})}},{"../utils.js":11,"./getdisplaymedia":4,"./getusermedia":5}],4:[function(e,t,n){"use strict";function r(e,t){if((!e.navigator.mediaDevices||!("getDisplayMedia"in e.navigator.mediaDevices))&&e.navigator.mediaDevices){if("function"!=typeof t)return void console.error("shimGetDisplayMedia: getSourceId argument is not a function");e.navigator.mediaDevices.getDisplayMedia=function(n){return t(n).then(function(t){var r=n.video&&n.video.width,i=n.video&&n.video.height,s=n.video&&n.video.frameRate;return n.video={mandatory:{chromeMediaSource:"desktop",chromeMediaSourceId:t,maxFrameRate:s||3}},r&&(n.video.mandatory.maxWidth=r),i&&(n.video.mandatory.maxHeight=i),e.navigator.mediaDevices.getUserMedia(n)})}}}Object.defineProperty(n,"__esModule",{value:!0}),n.shimGetDisplayMedia=r},{}],5:[function(e,t,n){"use strict";Object.defineProperty(n,"__esModule",{value:!0});var r="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.shimGetUserMedia=s;var i=function(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}(e("../utils.js")).log;function s(e,t){var n=e&&e.navigator;if(n.mediaDevices){var s=function(e){if((void 0===e?"undefined":r(e))!=="object"||e.mandatory||e.optional)return e;var t={};return Object.keys(e).forEach(function(n){if("require"!==n&&"advanced"!==n&&"mediaSource"!==n){var i="object"===r(e[n])?e[n]:{ideal:e[n]};void 0!==i.exact&&"number"==typeof i.exact&&(i.min=i.max=i.exact);var s=function(e,t){return e?e+t.charAt(0).toUpperCase()+t.slice(1):"deviceId"===t?"sourceId":t};if(void 0!==i.ideal){t.optional=t.optional||[];var a={};"number"==typeof i.ideal?(a[s("min",n)]=i.ideal,t.optional.push(a),(a={})[s("max",n)]=i.ideal):a[s("",n)]=i.ideal,t.optional.push(a)}void 0!==i.exact&&"number"!=typeof i.exact?(t.mandatory=t.mandatory||{},t.mandatory[s("",n)]=i.exact):["min","max"].forEach(function(e){void 0!==i[e]&&(t.mandatory=t.mandatory||{},t.mandatory[s(e,n)]=i[e])})}}),e.advanced&&(t.optional=(t.optional||[]).concat(e.advanced)),t},a=function(e,a){if(t.version>=61)return a(e);if((e=JSON.parse(JSON.stringify(e)))&&"object"===r(e.audio)){var o=function(e,t,n){t in e&&!(n in e)&&(e[n]=e[t],delete e[t])};o((e=JSON.parse(JSON.stringify(e))).audio,"autoGainControl","googAutoGainControl"),o(e.audio,"noiseSuppression","googNoiseSuppression"),e.audio=s(e.audio)}if(e&&"object"===r(e.video)){var l=e.video.facingMode;l=l&&((void 0===l?"undefined":r(l))==="object"?l:{ideal:l});var u=t.version<66;if(l&&("user"===l.exact||"environment"===l.exact||"user"===l.ideal||"environment"===l.ideal)&&!(n.mediaDevices.getSupportedConstraints&&n.mediaDevices.getSupportedConstraints().facingMode&&!u)){delete e.video.facingMode;var c=void 0;if("environment"===l.exact||"environment"===l.ideal?c=["back","rear"]:("user"===l.exact||"user"===l.ideal)&&(c=["front"]),c)return n.mediaDevices.enumerateDevices().then(function(t){var n=(t=t.filter(function(e){return"videoinput"===e.kind})).find(function(e){return c.some(function(t){return e.label.toLowerCase().includes(t)})});return!n&&t.length&&c.includes("back")&&(n=t[t.length-1]),n&&(e.video.deviceId=l.exact?{exact:n.deviceId}:{ideal:n.deviceId}),e.video=s(e.video),i("chrome: "+JSON.stringify(e)),a(e)})}e.video=s(e.video)}return i("chrome: "+JSON.stringify(e)),a(e)},o=function(e){return t.version>=64?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&&": 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t(e)},e.RTCIceCandidate.prototype=t.prototype,s.wrapPeerConnectionEvent(e,"icecandidate",function(t){return t.candidate&&Object.defineProperty(t,"candidate",{value:new e.RTCIceCandidate(t.candidate),writable:"false"}),t})}}function u(e,t){if(e.RTCPeerConnection){"sctp"in e.RTCPeerConnection.prototype||Object.defineProperty(e.RTCPeerConnection.prototype,"sctp",{get:function(){return void 0===this._sctp?null:this._sctp}});var n=function(e){if(!e||!e.sdp)return!1;var t=i.default.splitSections(e.sdp);return t.shift(),t.some(function(e){var t=i.default.parseMLine(e);return t&&"application"===t.kind&&-1!==t.protocol.indexOf("SCTP")})},r=function(e){var t=e.sdp.match(/mozilla...THIS_IS_SDPARTA-(\d+)/);if(null===t||t.length<2)return -1;var n=parseInt(t[1],10);return n!=n?-1:n},s=function(e){var n=65536;return"firefox"===t.browser&&(n=t.version<57?-1===e?16384:0x7ffffff5:t.version<60?57===t.version?65535:65536:0x7ffffff5),n},a=function(e,n){var r=65536;"firefox"===t.browser&&57===t.version&&(r=65535);var s=i.default.matchPrefix(e.sdp,"a=max-message-size:");return s.length>0?r=parseInt(s[0].substr(19),10):"firefox"===t.browser&&-1!==n&&(r=0x7ffffff5),r},o=e.RTCPeerConnection.prototype.setRemoteDescription;e.RTCPeerConnection.prototype.setRemoteDescription=function(){if(this._sctp=null,"chrome"===t.browser&&t.version>=76&&"plan-b"===this.getConfiguration().sdpSemantics&&Object.defineProperty(this,"sctp",{get:function(){return void 0===this._sctp?null:this._sctp},enumerable:!0,configurable:!0}),n(arguments[0])){var e=r(arguments[0]),i=s(e),l=a(arguments[0],e),u=void 0;u=0===i&&0===l?1/0:0===i||0===l?Math.max(i,l):Math.min(i,l);var c={};Object.defineProperty(c,"maxMessageSize",{get:function(){return u}}),this._sctp=c}return o.apply(this,arguments)}}}function c(e){if(e.RTCPeerConnection&&"createDataChannel"in e.RTCPeerConnection.prototype){var t=e.RTCPeerConnection.prototype.createDataChannel;e.RTCPeerConnection.prototype.createDataChannel=function(){var e=t.apply(this,arguments);return n(e,this),e},s.wrapPeerConnectionEvent(e,"datachannel",function(e){return n(e.channel,e.target),e})}function n(e,t){var n=e.send;e.send=function(){var r=arguments[0],i=r.length||r.size||r.byteLength;if("open"===e.readyState&&t.sctp&&i>t.sctp.maxMessageSize)throw TypeError("Message too large (can send a maximum of "+t.sctp.maxMessageSize+" bytes)");return n.apply(e,arguments)}}}function d(e){if(e.RTCPeerConnection&&!("connectionState"in e.RTCPeerConnection.prototype)){var t=e.RTCPeerConnection.prototype;Object.defineProperty(t,"connectionState",{get:function(){return({completed:"connected",checking:"connecting"})[this.iceConnectionState]||this.iceConnectionState},enumerable:!0,configurable:!0}),Object.defineProperty(t,"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 n=t[e];t[e]=function(){return this._connectionstatechangepoly||(this._connectionstatechangepoly=function(e){var t=e.target;if(t._lastConnectionState!==t.connectionState){t._lastConnectionState=t.connectionState;var n=new Event("connectionstatechange",e);t.dispatchEvent(n)}return e},this.addEventListener("iceconnectionstatechange",this._connectionstatechangepoly)),n.apply(this,arguments)}})}}function _(e,t){if(e.RTCPeerConnection&&("chrome"!==t.browser||!(t.version>=71))&&("safari"!==t.browser||!(t.version>=605))){var n=e.RTCPeerConnection.prototype.setRemoteDescription;e.RTCPeerConnection.prototype.setRemoteDescription=function(t){if(t&&t.sdp&&-1!==t.sdp.indexOf("\na=extmap-allow-mixed")){var r=t.sdp.split("\n").filter(function(e){return"a=extmap-allow-mixed"!==e.trim()}).join("\n");e.RTCSessionDescription&&t instanceof e.RTCSessionDescription?arguments[0]=new e.RTCSessionDescription({type:t.type,sdp:r}):t.sdp=r}return n.apply(this,arguments)}}}function f(e,t){if(e.RTCPeerConnection&&e.RTCPeerConnection.prototype){var n=e.RTCPeerConnection.prototype.addIceCandidate;n&&0!==n.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():n.apply(this,arguments):(arguments[1]&&arguments[1].apply(null),Promise.resolve())})}}},{"./utils":11,sdp:13}],7:[function(e,t,n){"use 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n={inboundrtp:"inbound-rtp",outboundrtp:"outbound-rtp",candidatepair:"candidate-pair",localcandidate:"local-candidate",remotecandidate:"remote-candidate"},i=e.RTCPeerConnection.prototype.getStats;e.RTCPeerConnection.prototype.getStats=function(){var e=Array.prototype.slice.call(arguments),r=e[0],s=e[1],a=e[2];return i.apply(this,[r||null]).then(function(e){if(t.version<53&&!s)try{e.forEach(function(e){e.type=n[e.type]||e.type})}catch(t){if("TypeError"!==t.name)throw t;e.forEach(function(t,r){e.set(r,Object.assign({},t,{type:n[t.type]||t.type}))})}return e}).then(s,a)}}}function d(e){if((void 0===e?"undefined":r(e))==="object"&&e.RTCPeerConnection&&e.RTCRtpSender&&(!e.RTCRtpSender||!("getStats"in e.RTCRtpSender.prototype))){var t=e.RTCPeerConnection.prototype.getSenders;t&&(e.RTCPeerConnection.prototype.getSenders=function(){var e=this,n=t.apply(this,[]);return n.forEach(function(t){return t._pc=e}),n});var n=e.RTCPeerConnection.prototype.addTrack;n&&(e.RTCPeerConnection.prototype.addTrack=function(){var e=n.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)}}}function _(e){if((void 0===e?"undefined":r(e))==="object"&&e.RTCPeerConnection&&e.RTCRtpSender&&(!e.RTCRtpSender||!("getStats"in e.RTCRtpReceiver.prototype))){var t=e.RTCPeerConnection.prototype.getReceivers;t&&(e.RTCPeerConnection.prototype.getReceivers=function(){var e=this,n=t.apply(this,[]);return n.forEach(function(t){return t._pc=e}),n}),a.wrapPeerConnectionEvent(e,"track",function(e){return e.receiver._pc=e.srcElement,e}),e.RTCRtpReceiver.prototype.getStats=function(){return this._pc.getStats(this.track)}}}function f(e){!e.RTCPeerConnection||"removeStream"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.removeStream=function(e){var t=this;a.deprecated("removeStream","removeTrack"),this.getSenders().forEach(function(n){n.track&&e.getTracks().includes(n.track)&&t.removeTrack(n)})})}function p(e){e.DataChannel&&!e.RTCDataChannel&&(e.RTCDataChannel=e.DataChannel)}function h(e){if((void 0===e?"undefined":r(e))==="object"&&e.RTCPeerConnection){var t=e.RTCPeerConnection.prototype.addTransceiver;t&&(e.RTCPeerConnection.prototype.addTransceiver=function(){this.setParametersPromises=[];var e=arguments[1],n=e&&"sendEncodings"in e;n&&e.sendEncodings.forEach(function(e){if("rid"in e&&!/^[a-z0-9]{0,16}$/i.test(e.rid))throw TypeError("Invalid RID value provided.");if("scaleResolutionDownBy"in e&&!(parseFloat(e.scaleResolutionDownBy)>=1))throw RangeError("scale_resolution_down_by must be >= 1.0");if("maxFramerate"in e&&!(parseFloat(e.maxFramerate)>=0))throw RangeError("max_framerate must be >= 0.0")});var r=t.apply(this,arguments);if(n){var i=r.sender,s=i.getParameters();"encodings"in s&&(1!==s.encodings.length||0!==Object.keys(s.encodings[0]).length)||(s.encodings=e.sendEncodings,i.sendEncodings=e.sendEncodings,this.setParametersPromises.push(i.setParameters(s).then(function(){delete i.sendEncodings}).catch(function(){delete i.sendEncodings})))}return r})}}function m(e){if((void 0===e?"undefined":r(e))==="object"&&e.RTCRtpSender){var t=e.RTCRtpSender.prototype.getParameters;t&&(e.RTCRtpSender.prototype.getParameters=function(){var e=t.apply(this,arguments);return"encodings"in e||(e.encodings=[].concat(this.sendEncodings||[{}])),e})}}function E(e){if((void 0===e?"undefined":r(e))==="object"&&e.RTCPeerConnection){var t=e.RTCPeerConnection.prototype.createOffer;e.RTCPeerConnection.prototype.createOffer=function(){var e=this,n=arguments;return this.setParametersPromises&&this.setParametersPromises.length?Promise.all(this.setParametersPromises).then(function(){return t.apply(e,n)}).finally(function(){e.setParametersPromises=[]}):t.apply(this,arguments)}}}function g(e){if((void 0===e?"undefined":r(e))==="object"&&e.RTCPeerConnection){var t=e.RTCPeerConnection.prototype.createAnswer;e.RTCPeerConnection.prototype.createAnswer=function(){var e=this,n=arguments;return this.setParametersPromises&&this.setParametersPromises.length?Promise.all(this.setParametersPromises).then(function(){return t.apply(e,n)}).finally(function(){e.setParametersPromises=[]}):t.apply(this,arguments)}}}},{"../utils":11,"./getdisplaymedia":8,"./getusermedia":9}],8:[function(e,t,n){"use strict";function r(e,t){e.navigator.mediaDevices&&"getDisplayMedia"in e.navigator.mediaDevices||e.navigator.mediaDevices&&(e.navigator.mediaDevices.getDisplayMedia=function(n){if(!(n&&n.video)){var r=new DOMException("getDisplayMedia without video constraints is undefined");return 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e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.getLocalStreams=function(){return this._localStreams||(this._localStreams=[]),this._localStreams}),!("addStream"in e.RTCPeerConnection.prototype)){var t=e.RTCPeerConnection.prototype.addTrack;e.RTCPeerConnection.prototype.addStream=function(e){var n=this;this._localStreams||(this._localStreams=[]),this._localStreams.includes(e)||this._localStreams.push(e),e.getAudioTracks().forEach(function(r){return t.call(n,r,e)}),e.getVideoTracks().forEach(function(r){return t.call(n,r,e)})},e.RTCPeerConnection.prototype.addTrack=function(e){for(var n=this,r=arguments.length,i=Array(r>1?r-1:0),s=1;s<r;s++)i[s-1]=arguments[s];return i&&i.forEach(function(e){n._localStreams?n._localStreams.includes(e)||n._localStreams.push(e):n._localStreams=[e]}),t.apply(this,arguments)}}"removeStream"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.removeStream=function(e){var t=this;this._localStreams||(this._localStreams=[]);var n=this._localStreams.indexOf(e);if(-1!==n){this._localStreams.splice(n,1);var r=e.getTracks();this.getSenders().forEach(function(e){r.includes(e.track)&&t.removeTrack(e)})}})}}function o(e){if((void 0===e?"undefined":r(e))==="object"&&e.RTCPeerConnection&&("getRemoteStreams"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.getRemoteStreams=function(){return this._remoteStreams?this._remoteStreams:[]}),!("onaddstream"in e.RTCPeerConnection.prototype))){Object.defineProperty(e.RTCPeerConnection.prototype,"onaddstream",{get:function(){return this._onaddstream},set:function(e){var t=this;this._onaddstream&&(this.removeEventListener("addstream",this._onaddstream),this.removeEventListener("track",this._onaddstreampoly)),this.addEventListener("addstream",this._onaddstream=e),this.addEventListener("track",this._onaddstreampoly=function(e){e.streams.forEach(function(e){if(t._remoteStreams||(t._remoteStreams=[]),!t._remoteStreams.includes(e)){t._remoteStreams.push(e);var n=new Event("addstream");n.stream=e,t.dispatchEvent(n)}})})}});var t=e.RTCPeerConnection.prototype.setRemoteDescription;e.RTCPeerConnection.prototype.setRemoteDescription=function(){var e=this;return this._onaddstreampoly||this.addEventListener("track",this._onaddstreampoly=function(t){t.streams.forEach(function(t){if(e._remoteStreams||(e._remoteStreams=[]),!(e._remoteStreams.indexOf(t)>=0)){e._remoteStreams.push(t);var n=new Event("addstream");n.stream=t,e.dispatchEvent(n)}})}),t.apply(e,arguments)}}}function l(e){if((void 0===e?"undefined":r(e))==="object"&&e.RTCPeerConnection){var t=e.RTCPeerConnection.prototype,n=t.createOffer,i=t.createAnswer,s=t.setLocalDescription,a=t.setRemoteDescription,o=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],r=i.apply(this,[n]);return 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a=e.iceServers[s];!a.hasOwnProperty("urls")&&a.hasOwnProperty("url")?(i.deprecated("RTCIceServer.url","RTCIceServer.urls"),(a=JSON.parse(JSON.stringify(a))).urls=a.url,delete a.url,r.push(a)):r.push(e.iceServers[s])}e.iceServers=r}return new t(e,n)},e.RTCPeerConnection.prototype=t.prototype,"generateCertificate"in t&&Object.defineProperty(e.RTCPeerConnection,"generateCertificate",{get:function(){return t.generateCertificate}})}}function _(e){(void 0===e?"undefined":r(e))==="object"&&e.RTCTrackEvent&&"receiver"in e.RTCTrackEvent.prototype&&!("transceiver"in e.RTCTrackEvent.prototype)&&Object.defineProperty(e.RTCTrackEvent.prototype,"transceiver",{get:function(){return{receiver:this.receiver}}})}function f(e){var t=e.RTCPeerConnection.prototype.createOffer;e.RTCPeerConnection.prototype.createOffer=function(e){if(e){void 0!==e.offerToReceiveAudio&&(e.offerToReceiveAudio=!!e.offerToReceiveAudio);var n=this.getTransceivers().find(function(e){return"audio"===e.receiver.track.kind});!1===e.offerToReceiveAudio&&n?"sendrecv"===n.direction?n.setDirection?n.setDirection("sendonly"):n.direction="sendonly":"recvonly"===n.direction&&(n.setDirection?n.setDirection("inactive"):n.direction="inactive"):!0!==e.offerToReceiveAudio||n||this.addTransceiver("audio"),void 0!==e.offerToReceiveVideo&&(e.offerToReceiveVideo=!!e.offerToReceiveVideo);var r=this.getTransceivers().find(function(e){return"video"===e.receiver.track.kind});!1===e.offerToReceiveVideo&&r?"sendrecv"===r.direction?r.setDirection?r.setDirection("sendonly"):r.direction="sendonly":"recvonly"===r.direction&&(r.setDirection?r.setDirection("inactive"):r.direction="inactive"):!0!==e.offerToReceiveVideo||r||this.addTransceiver("video")}return t.apply(this,arguments)}}function p(e){(void 0===e?"undefined":r(e))!=="object"||e.AudioContext||(e.AudioContext=e.webkitAudioContext)}},{"../utils":11}],11:[function(e,t,n){"use strict";Object.defineProperty(n,"__esModule",{value:!0});var r="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};function i(e,t,n){return t in e?Object.defineProperty(e,t,{value:n,enumerable:!0,configurable:!0,writable:!0}):e[t]=n,e}n.extractVersion=o,n.wrapPeerConnectionEvent=l,n.disableLog=u,n.disableWarnings=c,n.log=d,n.deprecated=_,n.detectBrowser=f,n.compactObject=h,n.walkStats=m,n.filterStats=E;var s=!0,a=!0;function o(e,t,n){var r=e.match(t);return r&&r.length>=n&&parseInt(r[n],10)}function l(e,t,n){if(e.RTCPeerConnection){var r=e.RTCPeerConnection.prototype,i=r.addEventListener;r.addEventListener=function(e,r){if(e!==t)return i.apply(this,arguments);var s=function(e){var t=n(e);t&&(r.handleEvent?r.handleEvent(t):r(t))};return this._eventMap=this._eventMap||{},this._eventMap[t]||(this._eventMap[t]=new 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Please use a boolean."):(s=e,e?"adapter.js logging disabled":"adapter.js logging enabled")}function c(e){return"boolean"!=typeof e?Error("Argument type: "+(void 0===e?"undefined":r(e))+". Please use a boolean."):(a=!e,"adapter.js deprecation warnings "+(e?"disabled":"enabled"))}function d(){("u"<typeof window?"undefined":r(window))==="object"&&!s&&"u">typeof console&&"function"==typeof console.log&&console.log.apply(console,arguments)}function _(e,t){a&&console.warn(e+" is deprecated, please use "+t+" instead.")}function f(e){var t={browser:null,version:null};if(void 0===e||!e.navigator)return t.browser="Not a browser.",t;var n=e.navigator;return n.mozGetUserMedia?(t.browser="firefox",t.version=o(n.userAgent,/Firefox\/(\d+)\./,1)):n.webkitGetUserMedia||!1===e.isSecureContext&&e.webkitRTCPeerConnection&&!e.RTCIceGatherer?(t.browser="chrome",t.version=o(n.userAgent,/Chrom(e|ium)\/(\d+)\./,2)):n.mediaDevices&&n.userAgent.match(/Edge\/(\d+).(\d+)$/)?(t.browser="edge",t.version=o(n.userAgent,/Edge\/(\d+).(\d+)$/,2)):e.RTCPeerConnection&&n.userAgent.match(/AppleWebKit\/(\d+)\./)?(t.browser="safari",t.version=o(n.userAgent,/AppleWebKit\/(\d+)\./,1),t.supportsUnifiedPlan=e.RTCRtpTransceiver&&"currentDirection"in e.RTCRtpTransceiver.prototype):t.browser="Not a supported browser.",t}function p(e){return"[object Object]"===Object.prototype.toString.call(e)}function h(e){return p(e)?Object.keys(e).reduce(function(t,n){var r=p(e[n]),s=r?h(e[n]):e[n],a=r&&!Object.keys(s).length;return void 0===s||a?t:Object.assign(t,i({},n,s))},{}):e}function m(e,t,n){!t||n.has(t.id)||(n.set(t.id,t),Object.keys(t).forEach(function(r){r.endsWith("Id")?m(e,e.get(t[r]),n):r.endsWith("Ids")&&t[r].forEach(function(t){m(e,e.get(t),n)})}))}function E(e,t,n){var r=n?"outbound-rtp":"inbound-rtp",i=new Map;if(null===t)return i;var s=[];return e.forEach(function(e){"track"===e.type&&e.trackIdentifier===t.id&&s.push(e)}),s.forEach(function(t){e.forEach(function(n){n.type===r&&n.trackId===t.id&&m(e,n,i)})}),i}},{}],12:[function(e,t,n){},{}],13:[function(e,t,n){"use strict";var r={};r.generateIdentifier=function(){return Math.random().toString(36).substr(2,10)},r.localCName=r.generateIdentifier(),r.splitLines=function(e){return e.trim().split("\n").map(function(e){return e.trim()})},r.splitSections=function(e){return e.split("\nm=").map(function(e,t){return(t>0?"m="+e:e).trim()+"\r\n"})},r.getDescription=function(e){var t=r.splitSections(e);return t&&t[0]},r.getMediaSections=function(e){var t=r.splitSections(e);return t.shift(),t},r.matchPrefix=function(e,t){return r.splitLines(e).filter(function(e){return 0===e.indexOf(t)})},r.parseCandidate=function(e){for(var t=0===e.indexOf("a=candidate:")?e.substring(12).split(" "):e.substring(10).split(" "),n={foundation:t[0],component:parseInt(t[1],10),protocol:t[2].toLowerCase(),priority:parseInt(t[3],10),ip:t[4],address:t[4],port:parseInt(t[5],10),type:t[7]},r=8;r<t.length;r+=2)switch(t[r]){case"raddr":n.relatedAddress=t[r+1];break;case"rport":n.relatedPort=parseInt(t[r+1],10);break;case"tcptype":n.tcpType=t[r+1];break;case"ufrag":n.ufrag=t[r+1],n.usernameFragment=t[r+1];break;default:n[t[r]]=t[r+1]}return n},r.writeCandidate=function(e){var t=[];t.push(e.foundation),t.push(e.component),t.push(e.protocol.toUpperCase()),t.push(e.priority),t.push(e.address||e.ip),t.push(e.port);var n=e.type;return t.push("typ"),t.push(n),"host"!==n&&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(" ")},r.parseIceOptions=function(e){return e.substr(14).split(" ")},r.parseRtpMap=function(e){var t=e.substr(9).split(" "),n={payloadType:parseInt(t.shift(),10)};return n.name=(t=t[0].split("/"))[0],n.clockRate=parseInt(t[1],10),n.channels=3===t.length?parseInt(t[2],10):1,n.numChannels=n.channels,n},r.writeRtpMap=function(e){var t=e.payloadType;void 0!==e.preferredPayloadType&&(t=e.preferredPayloadType);var n=e.channels||e.numChannels||1;return"a=rtpmap:"+t+" "+e.name+"/"+e.clockRate+(1!==n?"/"+n:"")+"\r\n"},r.parseExtmap=function(e){var t=e.substr(9).split(" ");return{id:parseInt(t[0],10),direction:t[0].indexOf("/")>0?t[0].split("/")[1]:"sendrecv",uri:t[1]}},r.writeExtmap=function(e){return"a=extmap:"+(e.id||e.preferredId)+(e.direction&&"sendrecv"!==e.direction?"/"+e.direction:"")+" "+e.uri+"\r\n"},r.parseFmtp=function(e){for(var t,n={},r=e.substr(e.indexOf(" ")+1).split(";"),i=0;i<r.length;i++)n[(t=r[i].trim().split("="))[0].trim()]=t[1];return n},r.writeFmtp=function(e){var t="",n=e.payloadType;if(void 0!==e.preferredPayloadType&&(n=e.preferredPayloadType),e.parameters&&Object.keys(e.parameters).length){var r=[];Object.keys(e.parameters).forEach(function(t){e.parameters[t]?r.push(t+"="+e.parameters[t]):r.push(t)}),t+="a=fmtp:"+n+" "+r.join(";")+"\r\n"}return t},r.parseRtcpFb=function(e){var t=e.substr(e.indexOf(" ")+1).split(" ");return{type:t.shift(),parameter:t.join(" ")}},r.writeRtcpFb=function(e){var t="",n=e.payloadType;return void 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?" "+e.parameter:"")+"\r\n"}),t},r.parseSsrcMedia=function(e){var t=e.indexOf(" "),n={ssrc:parseInt(e.substr(7,t-7),10)},r=e.indexOf(":",t);return r>-1?(n.attribute=e.substr(t+1,r-t-1),n.value=e.substr(r+1)):n.attribute=e.substr(t+1),n},r.parseSsrcGroup=function(e){var t=e.substr(13).split(" ");return{semantics:t.shift(),ssrcs:t.map(function(e){return parseInt(e,10)})}},r.getMid=function(e){var t=r.matchPrefix(e,"a=mid:")[0];if(t)return t.substr(6)},r.parseFingerprint=function(e){var t=e.substr(14).split(" ");return{algorithm:t[0].toLowerCase(),value:t[1]}},r.getDtlsParameters=function(e,t){return{role:"auto",fingerprints:r.matchPrefix(e+t,"a=fingerprint:").map(r.parseFingerprint)}},r.writeDtlsParameters=function(e,t){var n="a=setup:"+t+"\r\n";return e.fingerprints.forEach(function(e){n+="a=fingerprint:"+e.algorithm+" "+e.value+"\r\n"}),n},r.parseCryptoLine=function(e){var t=e.substr(9).split(" ");return{tag:parseInt(t[0],10),cryptoSuite:t[1],keyParams:t[2],sessionParams:t.slice(3)}},r.writeCryptoLine=function(e){return"a=crypto:"+e.tag+" "+e.cryptoSuite+" "+("object"==typeof e.keyParams?r.writeCryptoKeyParams(e.keyParams):e.keyParams)+(e.sessionParams?" "+e.sessionParams.join(" "):"")+"\r\n"},r.parseCryptoKeyParams=function(e){if(0!==e.indexOf("inline:"))return null;var t=e.substr(7).split("|");return{keyMethod:"inline",keySalt:t[0],lifeTime:t[1],mkiValue:t[2]?t[2].split(":")[0]:void 0,mkiLength:t[2]?t[2].split(":")[1]:void 0}},r.writeCryptoKeyParams=function(e){return e.keyMethod+":"+e.keySalt+(e.lifeTime?"|"+e.lifeTime:"")+(e.mkiValue&&e.mkiLength?"|"+e.mkiValue+":"+e.mkiLength:"")},r.getCryptoParameters=function(e,t){return r.matchPrefix(e+t,"a=crypto:").map(r.parseCryptoLine)},r.getIceParameters=function(e,t){var n=r.matchPrefix(e+t,"a=ice-ufrag:")[0],i=r.matchPrefix(e+t,"a=ice-pwd:")[0];return n&&i?{usernameFragment:n.substr(12),password:i.substr(10)}:null},r.writeIceParameters=function(e){return"a=ice-ufrag:"+e.usernameFragment+"\r\na=ice-pwd:"+e.password+"\r\n"},r.parseRtpParameters=function(e){for(var t={codecs:[],headerExtensions:[],fecMechanisms:[],rtcp:[]},n=r.splitLines(e)[0].split(" "),i=3;i<n.length;i++){var s=n[i],a=r.matchPrefix(e,"a=rtpmap:"+s+" ")[0];if(a){var o=r.parseRtpMap(a),l=r.matchPrefix(e,"a=fmtp:"+s+" ");switch(o.parameters=l.length?r.parseFmtp(l[0]):{},o.rtcpFeedback=r.matchPrefix(e,"a=rtcp-fb:"+s+" ").map(r.parseRtcpFb),t.codecs.push(o),o.name.toUpperCase()){case"RED":case"ULPFEC":t.fecMechanisms.push(o.name.toUpperCase())}}}return r.matchPrefix(e,"a=extmap:").forEach(function(e){t.headerExtensions.push(r.parseExtmap(e))}),t},r.writeRtpDescription=function(e,t){var n="";n+="m="+e+" ",n+=t.codecs.length>0?"9":"0",n+=" UDP/TLS/RTP/SAVPF ",n+=t.codecs.map(function(e){return void 0!==e.preferredPayloadType?e.preferredPayloadType:e.payloadType}).join(" ")+"\r\n",n+="c=IN IP4 0.0.0.0\r\n",n+="a=rtcp:9 IN IP4 0.0.0.0\r\n",t.codecs.forEach(function(e){n+=r.writeRtpMap(e),n+=r.writeFmtp(e),n+=r.writeRtcpFb(e)});var i=0;return t.codecs.forEach(function(e){e.maxptime>i&&(i=e.maxptime)}),i>0&&(n+="a=maxptime:"+i+"\r\n"),n+="a=rtcp-mux\r\n",t.headerExtensions&&t.headerExtensions.forEach(function(e){n+=r.writeExtmap(e)}),n},r.parseRtpEncodingParameters=function(e){var t,n=[],i=r.parseRtpParameters(e),s=-1!==i.fecMechanisms.indexOf("RED"),a=-1!==i.fecMechanisms.indexOf("ULPFEC"),o=r.matchPrefix(e,"a=ssrc:").map(function(e){return r.parseSsrcMedia(e)}).filter(function(e){return"cname"===e.attribute}),l=o.length>0&&o[0].ssrc,u=r.matchPrefix(e,"a=ssrc-group:FID").map(function(e){return e.substr(17).split(" ").map(function(e){return parseInt(e,10)})});u.length>0&&u[0].length>1&&u[0][0]===l&&(t=u[0][1]),i.codecs.forEach(function(e){if("RTX"===e.name.toUpperCase()&&e.parameters.apt){var r={ssrc:l,codecPayloadType:parseInt(e.parameters.apt,10)};l&&t&&(r.rtx={ssrc:t}),n.push(r),s&&((r=JSON.parse(JSON.stringify(r))).fec={ssrc:l,mechanism:a?"red+ulpfec":"red"},n.push(r))}}),0===n.length&&l&&n.push({ssrc:l});var c=r.matchPrefix(e,"b=");return c.length&&(c=0===c[0].indexOf("b=TIAS:")?parseInt(c[0].substr(7),10):0===c[0].indexOf("b=AS:")?1e3*parseInt(c[0].substr(5),10)*.95-16e3:void 0,n.forEach(function(e){e.maxBitrate=c})),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");return t.reducedSize=i.length>0,t.compound=0===i.length,t.mux=r.matchPrefix(e,"a=rtcp-mux").length>0,t},r.parseMsid=function(e){var t,n=r.matchPrefix(e,"a=msid:");if(1===n.length)return{stream:(t=n[0].substr(7).split(" "))[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});if(i.length>0)return{stream:(t=i[0].value.split(" "))[0],track:t[1]}},r.parseSctpDescription=function(e){var t,n=r.parseMLine(e),i=r.matchPrefix(e,"a=max-message-size:");i.length>0&&(t=parseInt(i[0].substr(19),10)),isNaN(t)&&(t=65536);var s=r.matchPrefix(e,"a=sctp-port:");if(s.length>0)return{port:parseInt(s[0].substr(12),10),protocol:n.fmt,maxMessageSize:t};if(r.matchPrefix(e,"a=sctpmap:").length>0){var a=r.matchPrefix(e,"a=sctpmap:")[0].substr(10).split(" ");return{port:parseInt(a[0],10),protocol:a[1],maxMessageSize:t}}},r.writeSctpDescription=function(e,t){var n=[];return n="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"],void 0!==t.maxMessageSize&&n.push("a=max-message-size:"+t.maxMessageSize+"\r\n"),n.join("")},r.generateSessionId=function(){return Math.random().toString().substr(2,21)},r.writeSessionBoilerplate=function(e,t,n){var i,s=void 0!==t?t:2;return"v=0\r\no="+(n||"thisisadapterortc")+" "+(i=e||r.generateSessionId())+" "+s+" IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\n"},r.writeMediaSection=function(e,t,n,i){var s=r.writeRtpDescription(e.kind,t);if(s+=r.writeIceParameters(e.iceGatherer.getLocalParameters()),s+=r.writeDtlsParameters(e.dtlsTransport.getLocalParameters(),"offer"===n?"actpass":"active"),s+="a=mid:"+e.mid+"\r\n",e.direction?s+="a="+e.direction+"\r\n":e.rtpSender&&e.rtpReceiver?s+="a=sendrecv\r\n":e.rtpSender?s+="a=sendonly\r\n":e.rtpReceiver?s+="a=recvonly\r\n":s+="a=inactive\r\n",e.rtpSender){var a="msid:"+i.id+" "+e.rtpSender.track.id+"\r\n";s+="a="+a,s+="a=ssrc:"+e.sendEncodingParameters[0].ssrc+" "+a,e.sendEncodingParameters[0].rtx&&(s+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" "+a,s+="a=ssrc-group:FID "+e.sendEncodingParameters[0].ssrc+" "+e.sendEncodingParameters[0].rtx.ssrc+"\r\n")}return s+="a=ssrc:"+e.sendEncodingParameters[0].ssrc+" cname:"+r.localCName+"\r\n",e.rtpSender&&e.sendEncodingParameters[0].rtx&&(s+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" cname:"+r.localCName+"\r\n"),s},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)[0].substr(2).split(" ");return{kind:t[0],port:parseInt(t[1],10),protocol:t[2],fmt:t.slice(3).join(" ")}},r.parseOLine=function(e){var t=r.matchPrefix(e,"o=")[0].substr(2).split(" ");return{username:t[0],sessionId:t[1],sessionVersion:parseInt(t[2],10),netType:t[3],addressType:t[4],address:t[5]}},r.isValidSDP=function(e){if("string"!=typeof e||0===e.length)return!1;for(var t=r.splitLines(e),n=0;n<t.length;n++)if(t[n].length<2||"="!==t[n].charAt(1))return!1;return!0},"object"==typeof t&&(t.exports=r)},{}]},{},[1])}