From b0827470bc1328e1237f93e60ebb5556f0c61c0b Mon Sep 17 00:00:00 2001 From: Seungmin Kim <8457324+ehfd@users.noreply.github.com> Date: Sat, 23 Mar 2024 16:52:01 +0900 Subject: [PATCH] Try WebRTC Adapter upgrade --- addons/gst-web/src/index.html | 2 +- .../src/lib/webrtc-adapter-8.2.3.min.js | 1 + .../gst-web/src/lib/webrtc-adapter-v7.7.1.js | 5621 ----------------- 3 files changed, 2 insertions(+), 5622 deletions(-) create mode 100644 addons/gst-web/src/lib/webrtc-adapter-8.2.3.min.js delete mode 100644 addons/gst-web/src/lib/webrtc-adapter-v7.7.1.js diff --git a/addons/gst-web/src/index.html b/addons/gst-web/src/index.html index d145f24a..65629b24 100644 --- a/addons/gst-web/src/index.html +++ b/addons/gst-web/src/index.html @@ -408,7 +408,7 @@ } }); - + diff --git a/addons/gst-web/src/lib/webrtc-adapter-8.2.3.min.js b/addons/gst-web/src/lib/webrtc-adapter-8.2.3.min.js new file mode 100644 index 00000000..98b3380f --- /dev/null +++ b/addons/gst-web/src/lib/webrtc-adapter-8.2.3.min.js @@ -0,0 +1 @@ +!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>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={},i=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(r in e){var o;"default"!==r&&Object.prototype.hasOwnProperty.call(e,r)&&((o=i?Object.getOwnPropertyDescriptor(e,r):null)&&(o.get||o.set)?Object.defineProperty(n,r,o):n[r]=e[r])}n.default=e,t&&t.set(e,n);return 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":11,sdp:12}],7:[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)||null===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:String(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={},i=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(r in e){var o;"default"!==r&&Object.prototype.hasOwnProperty.call(e,r)&&((o=i?Object.getOwnPropertyDescriptor(e,r):null)&&(o.get||o.set)?Object.defineProperty(n,r,o):n[r]=e[r])}n.default=e,t&&t.set(e,n);return 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=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).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(0n&&(n=e.maxptime)}),0 0 && arguments[0] !== undefined ? arguments[0] : {}, - window = _ref.window; - - var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : { - shimChrome: true, - shimFirefox: true, - shimEdge: true, - shimSafari: true - }; - - // Utils. - var logging = utils.log; - var browserDetails = utils.detectBrowser(window); - - var adapter = { - browserDetails: browserDetails, - commonShim: commonShim, - extractVersion: utils.extractVersion, - disableLog: utils.disableLog, - disableWarnings: utils.disableWarnings - }; - - // Shim browser if found. - switch (browserDetails.browser) { - case 'chrome': - if (!chromeShim || !chromeShim.shimPeerConnection || !options.shimChrome) { - logging('Chrome shim is not included in this adapter release.'); - return adapter; - } - if (browserDetails.version === null) { - logging('Chrome shim can not determine version, not shimming.'); - return adapter; - } - logging('adapter.js shimming chrome.'); - // Export to the adapter global object visible in the browser. - adapter.browserShim = chromeShim; - - // Must be called before shimPeerConnection. - commonShim.shimAddIceCandidateNullOrEmpty(window, browserDetails); - - chromeShim.shimGetUserMedia(window, browserDetails); - chromeShim.shimMediaStream(window, browserDetails); - chromeShim.shimPeerConnection(window, browserDetails); - chromeShim.shimOnTrack(window, browserDetails); - chromeShim.shimAddTrackRemoveTrack(window, browserDetails); - chromeShim.shimGetSendersWithDtmf(window, browserDetails); - chromeShim.shimGetStats(window, browserDetails); - chromeShim.shimSenderReceiverGetStats(window, browserDetails); - chromeShim.fixNegotiationNeeded(window, browserDetails); - - commonShim.shimRTCIceCandidate(window, browserDetails); - commonShim.shimConnectionState(window, browserDetails); - commonShim.shimMaxMessageSize(window, browserDetails); - commonShim.shimSendThrowTypeError(window, browserDetails); - commonShim.removeExtmapAllowMixed(window, browserDetails); - break; - case 'firefox': - if (!firefoxShim || !firefoxShim.shimPeerConnection || !options.shimFirefox) { - logging('Firefox shim is not included in this adapter release.'); - return adapter; - } - logging('adapter.js shimming firefox.'); - // Export to the adapter global object visible in the browser. - adapter.browserShim = firefoxShim; - - // Must be called before shimPeerConnection. - commonShim.shimAddIceCandidateNullOrEmpty(window, browserDetails); - - firefoxShim.shimGetUserMedia(window, browserDetails); - firefoxShim.shimPeerConnection(window, browserDetails); - firefoxShim.shimOnTrack(window, browserDetails); - firefoxShim.shimRemoveStream(window, browserDetails); - firefoxShim.shimSenderGetStats(window, browserDetails); - firefoxShim.shimReceiverGetStats(window, browserDetails); - firefoxShim.shimRTCDataChannel(window, browserDetails); - firefoxShim.shimAddTransceiver(window, browserDetails); - firefoxShim.shimGetParameters(window, browserDetails); - firefoxShim.shimCreateOffer(window, browserDetails); - firefoxShim.shimCreateAnswer(window, browserDetails); - - commonShim.shimRTCIceCandidate(window, browserDetails); - commonShim.shimConnectionState(window, browserDetails); - commonShim.shimMaxMessageSize(window, browserDetails); - commonShim.shimSendThrowTypeError(window, browserDetails); - break; - case 'edge': - if (!edgeShim || !edgeShim.shimPeerConnection || !options.shimEdge) { - logging('MS edge shim is not included in this adapter release.'); - return adapter; - } - logging('adapter.js shimming edge.'); - // Export to the adapter global object visible in the browser. - adapter.browserShim = edgeShim; - - edgeShim.shimGetUserMedia(window, browserDetails); - edgeShim.shimGetDisplayMedia(window, browserDetails); - edgeShim.shimPeerConnection(window, browserDetails); - edgeShim.shimReplaceTrack(window, browserDetails); - - // the edge shim implements the full RTCIceCandidate object. - - commonShim.shimMaxMessageSize(window, browserDetails); - commonShim.shimSendThrowTypeError(window, browserDetails); - break; - case 'safari': - if (!safariShim || !options.shimSafari) { - logging('Safari shim is not included in this adapter release.'); - return adapter; - } - logging('adapter.js shimming safari.'); - // Export to the adapter global object visible in the browser. - adapter.browserShim = safariShim; - - // Must be called before shimCallbackAPI. - commonShim.shimAddIceCandidateNullOrEmpty(window, browserDetails); - - safariShim.shimRTCIceServerUrls(window, browserDetails); - safariShim.shimCreateOfferLegacy(window, browserDetails); - safariShim.shimCallbacksAPI(window, browserDetails); - safariShim.shimLocalStreamsAPI(window, browserDetails); - safariShim.shimRemoteStreamsAPI(window, browserDetails); - safariShim.shimTrackEventTransceiver(window, browserDetails); - safariShim.shimGetUserMedia(window, browserDetails); - safariShim.shimAudioContext(window, browserDetails); - - commonShim.shimRTCIceCandidate(window, browserDetails); - commonShim.shimMaxMessageSize(window, browserDetails); - commonShim.shimSendThrowTypeError(window, browserDetails); - commonShim.removeExtmapAllowMixed(window, browserDetails); - break; - default: - logging('Unsupported browser!'); - break; - } - - return adapter; -} - -// Browser shims. - -},{"./chrome/chrome_shim":3,"./common_shim":6,"./edge/edge_shim":7,"./firefox/firefox_shim":11,"./safari/safari_shim":14,"./utils":15}],3:[function(require,module,exports){ -/* - * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE file in the root of the source - * tree. - */ -/* eslint-env node */ -'use strict'; - -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.shimGetDisplayMedia = exports.shimGetUserMedia = undefined; - -var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; - -var _getusermedia = require('./getusermedia'); - -Object.defineProperty(exports, 'shimGetUserMedia', { - enumerable: true, - get: function get() { - return _getusermedia.shimGetUserMedia; - } -}); - -var _getdisplaymedia = require('./getdisplaymedia'); - -Object.defineProperty(exports, 'shimGetDisplayMedia', { - enumerable: true, - get: function get() { - return _getdisplaymedia.shimGetDisplayMedia; - } -}); -exports.shimMediaStream = shimMediaStream; -exports.shimOnTrack = shimOnTrack; -exports.shimGetSendersWithDtmf = shimGetSendersWithDtmf; -exports.shimGetStats = shimGetStats; -exports.shimSenderReceiverGetStats = shimSenderReceiverGetStats; -exports.shimAddTrackRemoveTrackWithNative = shimAddTrackRemoveTrackWithNative; -exports.shimAddTrackRemoveTrack = shimAddTrackRemoveTrack; -exports.shimPeerConnection = shimPeerConnection; -exports.fixNegotiationNeeded = fixNegotiationNeeded; - -var _utils = require('../utils.js'); - -var utils = _interopRequireWildcard(_utils); - -function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } } - -function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } - -function shimMediaStream(window) { - window.MediaStream = window.MediaStream || window.webkitMediaStream; -} - -function shimOnTrack(window) { - if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCPeerConnection && !('ontrack' in window.RTCPeerConnection.prototype)) { - Object.defineProperty(window.RTCPeerConnection.prototype, 'ontrack', { - get: function get() { - return this._ontrack; - }, - set: function set(f) { - if (this._ontrack) { - this.removeEventListener('track', this._ontrack); - } - this.addEventListener('track', this._ontrack = f); - }, - - enumerable: true, - configurable: true - }); - var origSetRemoteDescription = window.RTCPeerConnection.prototype.setRemoteDescription; - window.RTCPeerConnection.prototype.setRemoteDescription = function setRemoteDescription() { - var _this = this; - - if (!this._ontrackpoly) { - this._ontrackpoly = function (e) { - // onaddstream does not fire when a track is added to an existing - // stream. But stream.onaddtrack is implemented so we use that. - e.stream.addEventListener('addtrack', function (te) { - var receiver = void 0; - if (window.RTCPeerConnection.prototype.getReceivers) { - receiver = _this.getReceivers().find(function (r) { - return r.track && r.track.id === te.track.id; - }); - } else { - receiver = { track: te.track }; - } - - var event = new Event('track'); - event.track = te.track; - event.receiver = receiver; - event.transceiver = { receiver: receiver }; - event.streams = [e.stream]; - _this.dispatchEvent(event); - }); - e.stream.getTracks().forEach(function (track) { - var receiver = void 0; - if (window.RTCPeerConnection.prototype.getReceivers) { - receiver = _this.getReceivers().find(function (r) { - return r.track && r.track.id === track.id; - }); - } else { - receiver = { track: track }; - } - var event = new Event('track'); - event.track = track; - event.receiver = receiver; - event.transceiver = { receiver: receiver }; - event.streams = [e.stream]; - _this.dispatchEvent(event); - }); - }; - this.addEventListener('addstream', this._ontrackpoly); - } - return origSetRemoteDescription.apply(this, arguments); - }; - } else { - // even if RTCRtpTransceiver is in window, it is only used and - // emitted in unified-plan. Unfortunately this means we need - // to unconditionally wrap the event. - utils.wrapPeerConnectionEvent(window, 'track', function (e) { - if (!e.transceiver) { - Object.defineProperty(e, 'transceiver', { value: { receiver: e.receiver } }); - } - return e; - }); - } -} - -function shimGetSendersWithDtmf(window) { - // Overrides addTrack/removeTrack, depends on shimAddTrackRemoveTrack. - if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCPeerConnection && !('getSenders' in window.RTCPeerConnection.prototype) && 'createDTMFSender' in window.RTCPeerConnection.prototype) { - var shimSenderWithDtmf = function shimSenderWithDtmf(pc, track) { - return { - track: track, - get dtmf() { - if (this._dtmf === undefined) { - if (track.kind === 'audio') { - this._dtmf = pc.createDTMFSender(track); - } else { - this._dtmf = null; - } - } - return this._dtmf; - }, - _pc: pc - }; - }; - - // augment addTrack when getSenders is not available. - if (!window.RTCPeerConnection.prototype.getSenders) { - window.RTCPeerConnection.prototype.getSenders = function getSenders() { - this._senders = this._senders || []; - return this._senders.slice(); // return a copy of the internal state. - }; - var origAddTrack = window.RTCPeerConnection.prototype.addTrack; - window.RTCPeerConnection.prototype.addTrack = function addTrack(track, stream) { - var sender = origAddTrack.apply(this, arguments); - if (!sender) { - sender = shimSenderWithDtmf(this, track); - this._senders.push(sender); - } - return sender; - }; - - var origRemoveTrack = window.RTCPeerConnection.prototype.removeTrack; - window.RTCPeerConnection.prototype.removeTrack = function removeTrack(sender) { - origRemoveTrack.apply(this, arguments); - var idx = this._senders.indexOf(sender); - if (idx !== -1) { - this._senders.splice(idx, 1); - } - }; - } - var origAddStream = window.RTCPeerConnection.prototype.addStream; - window.RTCPeerConnection.prototype.addStream = function addStream(stream) { - var _this2 = this; - - this._senders = this._senders || []; - origAddStream.apply(this, [stream]); - stream.getTracks().forEach(function (track) { - _this2._senders.push(shimSenderWithDtmf(_this2, track)); - }); - }; - - var origRemoveStream = window.RTCPeerConnection.prototype.removeStream; - window.RTCPeerConnection.prototype.removeStream = function removeStream(stream) { - var _this3 = this; - - this._senders = this._senders || []; - origRemoveStream.apply(this, [stream]); - - stream.getTracks().forEach(function (track) { - var sender = _this3._senders.find(function (s) { - return s.track === track; - }); - if (sender) { - // remove sender - _this3._senders.splice(_this3._senders.indexOf(sender), 1); - } - }); - }; - } else if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCPeerConnection && 'getSenders' in window.RTCPeerConnection.prototype && 'createDTMFSender' in window.RTCPeerConnection.prototype && window.RTCRtpSender && !('dtmf' in window.RTCRtpSender.prototype)) { - var origGetSenders = window.RTCPeerConnection.prototype.getSenders; - window.RTCPeerConnection.prototype.getSenders = function getSenders() { - var _this4 = this; - - var senders = origGetSenders.apply(this, []); - senders.forEach(function (sender) { - return sender._pc = _this4; - }); - return senders; - }; - - Object.defineProperty(window.RTCRtpSender.prototype, 'dtmf', { - get: function get() { - if (this._dtmf === undefined) { - if (this.track.kind === 'audio') { - this._dtmf = this._pc.createDTMFSender(this.track); - } else { - this._dtmf = null; - } - } - return this._dtmf; - } - }); - } -} - -function shimGetStats(window) { - if (!window.RTCPeerConnection) { - return; - } - - var origGetStats = window.RTCPeerConnection.prototype.getStats; - window.RTCPeerConnection.prototype.getStats = function getStats() { - var _this5 = this; - - var _arguments = Array.prototype.slice.call(arguments), - selector = _arguments[0], - onSucc = _arguments[1], - onErr = _arguments[2]; - - // If selector is a function then we are in the old style stats so just - // pass back the original getStats format to avoid breaking old users. - - - if (arguments.length > 0 && typeof selector === 'function') { - return origGetStats.apply(this, arguments); - } - - // When spec-style getStats is supported, return those when called with - // either no arguments or the selector argument is null. - if (origGetStats.length === 0 && (arguments.length === 0 || typeof selector !== 'function')) { - return origGetStats.apply(this, []); - } - - var fixChromeStats_ = function fixChromeStats_(response) { - var standardReport = {}; - var reports = response.result(); - reports.forEach(function (report) { - var standardStats = { - id: report.id, - timestamp: report.timestamp, - type: { - localcandidate: 'local-candidate', - remotecandidate: 'remote-candidate' - }[report.type] || report.type - }; - report.names().forEach(function (name) { - standardStats[name] = report.stat(name); - }); - standardReport[standardStats.id] = standardStats; - }); - - return standardReport; - }; - - // shim getStats with maplike support - var makeMapStats = function makeMapStats(stats) { - return new Map(Object.keys(stats).map(function (key) { - return [key, stats[key]]; - })); - }; - - if (arguments.length >= 2) { - var successCallbackWrapper_ = function successCallbackWrapper_(response) { - onSucc(makeMapStats(fixChromeStats_(response))); - }; - - return origGetStats.apply(this, [successCallbackWrapper_, selector]); - } - - // promise-support - return new Promise(function (resolve, reject) { - origGetStats.apply(_this5, [function (response) { - resolve(makeMapStats(fixChromeStats_(response))); - }, reject]); - }).then(onSucc, onErr); - }; -} - -function shimSenderReceiverGetStats(window) { - if (!((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCPeerConnection && window.RTCRtpSender && window.RTCRtpReceiver)) { - return; - } - - // shim sender stats. - if (!('getStats' in window.RTCRtpSender.prototype)) { - var origGetSenders = window.RTCPeerConnection.prototype.getSenders; - if (origGetSenders) { - window.RTCPeerConnection.prototype.getSenders = function getSenders() { - var _this6 = this; - - var senders = origGetSenders.apply(this, []); - senders.forEach(function (sender) { - return sender._pc = _this6; - }); - return senders; - }; - } - - var origAddTrack = window.RTCPeerConnection.prototype.addTrack; - if (origAddTrack) { - window.RTCPeerConnection.prototype.addTrack = function addTrack() { - var sender = origAddTrack.apply(this, arguments); - sender._pc = this; - return sender; - }; - } - window.RTCRtpSender.prototype.getStats = function getStats() { - var sender = this; - return this._pc.getStats().then(function (result) { - return ( - /* Note: this will include stats of all senders that - * send a track with the same id as sender.track as - * it is not possible to identify the RTCRtpSender. - */ - utils.filterStats(result, sender.track, true) - ); - }); - }; - } - - // shim receiver stats. - if (!('getStats' in window.RTCRtpReceiver.prototype)) { - var origGetReceivers = window.RTCPeerConnection.prototype.getReceivers; - if (origGetReceivers) { - window.RTCPeerConnection.prototype.getReceivers = function getReceivers() { - var _this7 = this; - - var receivers = origGetReceivers.apply(this, []); - receivers.forEach(function (receiver) { - return receiver._pc = _this7; - }); - return receivers; - }; - } - utils.wrapPeerConnectionEvent(window, 'track', function (e) { - e.receiver._pc = e.srcElement; - return e; - }); - window.RTCRtpReceiver.prototype.getStats = function getStats() { - var receiver = this; - return this._pc.getStats().then(function (result) { - return utils.filterStats(result, receiver.track, false); - }); - }; - } - - if (!('getStats' in window.RTCRtpSender.prototype && 'getStats' in window.RTCRtpReceiver.prototype)) { - return; - } - - // shim RTCPeerConnection.getStats(track). - var origGetStats = window.RTCPeerConnection.prototype.getStats; - window.RTCPeerConnection.prototype.getStats = function getStats() { - if (arguments.length > 0 && arguments[0] instanceof window.MediaStreamTrack) { - var track = arguments[0]; - var sender = void 0; - var receiver = void 0; - var err = void 0; - this.getSenders().forEach(function (s) { - if (s.track === track) { - if (sender) { - err = true; - } else { - sender = s; - } - } - }); - this.getReceivers().forEach(function (r) { - if (r.track === track) { - if (receiver) { - err = true; - } else { - receiver = r; - } - } - return r.track === track; - }); - if (err || sender && receiver) { - return Promise.reject(new DOMException('There are more than one sender or receiver for the track.', 'InvalidAccessError')); - } else if (sender) { - return sender.getStats(); - } else if (receiver) { - return receiver.getStats(); - } - return Promise.reject(new DOMException('There is no sender or receiver for the track.', 'InvalidAccessError')); - } - return origGetStats.apply(this, arguments); - }; -} - -function shimAddTrackRemoveTrackWithNative(window) { - // shim addTrack/removeTrack with native variants in order to make - // the interactions with legacy getLocalStreams behave as in other browsers. - // Keeps a mapping stream.id => [stream, rtpsenders...] - window.RTCPeerConnection.prototype.getLocalStreams = function getLocalStreams() { - var _this8 = this; - - this._shimmedLocalStreams = this._shimmedLocalStreams || {}; - return Object.keys(this._shimmedLocalStreams).map(function (streamId) { - return _this8._shimmedLocalStreams[streamId][0]; - }); - }; - - var origAddTrack = window.RTCPeerConnection.prototype.addTrack; - window.RTCPeerConnection.prototype.addTrack = function addTrack(track, stream) { - if (!stream) { - return origAddTrack.apply(this, arguments); - } - this._shimmedLocalStreams = this._shimmedLocalStreams || {}; - - var sender = origAddTrack.apply(this, arguments); - if (!this._shimmedLocalStreams[stream.id]) { - this._shimmedLocalStreams[stream.id] = [stream, sender]; - } else if (this._shimmedLocalStreams[stream.id].indexOf(sender) === -1) { - this._shimmedLocalStreams[stream.id].push(sender); - } - return sender; - }; - - var origAddStream = window.RTCPeerConnection.prototype.addStream; - window.RTCPeerConnection.prototype.addStream = function addStream(stream) { - var _this9 = this; - - this._shimmedLocalStreams = this._shimmedLocalStreams || {}; - - stream.getTracks().forEach(function (track) { - var alreadyExists = _this9.getSenders().find(function (s) { - return s.track === track; - }); - if (alreadyExists) { - throw new DOMException('Track already exists.', 'InvalidAccessError'); - } - }); - var existingSenders = this.getSenders(); - origAddStream.apply(this, arguments); - var newSenders = this.getSenders().filter(function (newSender) { - return existingSenders.indexOf(newSender) === -1; - }); - this._shimmedLocalStreams[stream.id] = [stream].concat(newSenders); - }; - - var origRemoveStream = window.RTCPeerConnection.prototype.removeStream; - window.RTCPeerConnection.prototype.removeStream = function removeStream(stream) { - this._shimmedLocalStreams = this._shimmedLocalStreams || {}; - delete this._shimmedLocalStreams[stream.id]; - return origRemoveStream.apply(this, arguments); - }; - - var origRemoveTrack = window.RTCPeerConnection.prototype.removeTrack; - window.RTCPeerConnection.prototype.removeTrack = function removeTrack(sender) { - var _this10 = this; - - this._shimmedLocalStreams = this._shimmedLocalStreams || {}; - if (sender) { - Object.keys(this._shimmedLocalStreams).forEach(function (streamId) { - var idx = _this10._shimmedLocalStreams[streamId].indexOf(sender); - if (idx !== -1) { - _this10._shimmedLocalStreams[streamId].splice(idx, 1); - } - if (_this10._shimmedLocalStreams[streamId].length === 1) { - delete _this10._shimmedLocalStreams[streamId]; - } - }); - } - return origRemoveTrack.apply(this, arguments); - }; -} - -function shimAddTrackRemoveTrack(window, browserDetails) { - if (!window.RTCPeerConnection) { - return; - } - // shim addTrack and removeTrack. - if (window.RTCPeerConnection.prototype.addTrack && browserDetails.version >= 65) { - return shimAddTrackRemoveTrackWithNative(window); - } - - // also shim pc.getLocalStreams when addTrack is shimmed - // to return the original streams. - var origGetLocalStreams = window.RTCPeerConnection.prototype.getLocalStreams; - window.RTCPeerConnection.prototype.getLocalStreams = function getLocalStreams() { - var _this11 = this; - - var nativeStreams = origGetLocalStreams.apply(this); - this._reverseStreams = this._reverseStreams || {}; - return nativeStreams.map(function (stream) { - return _this11._reverseStreams[stream.id]; - }); - }; - - var origAddStream = window.RTCPeerConnection.prototype.addStream; - window.RTCPeerConnection.prototype.addStream = function addStream(stream) { - var _this12 = this; - - this._streams = this._streams || {}; - this._reverseStreams = this._reverseStreams || {}; - - stream.getTracks().forEach(function (track) { - var alreadyExists = _this12.getSenders().find(function (s) { - return s.track === track; - }); - if (alreadyExists) { - throw new DOMException('Track already exists.', 'InvalidAccessError'); - } - }); - // Add identity mapping for consistency with addTrack. - // Unless this is being used with a stream from addTrack. - if (!this._reverseStreams[stream.id]) { - var newStream = new window.MediaStream(stream.getTracks()); - this._streams[stream.id] = newStream; - this._reverseStreams[newStream.id] = stream; - stream = newStream; - } - origAddStream.apply(this, [stream]); - }; - - var origRemoveStream = window.RTCPeerConnection.prototype.removeStream; - window.RTCPeerConnection.prototype.removeStream = function removeStream(stream) { - this._streams = this._streams || {}; - this._reverseStreams = this._reverseStreams || {}; - - origRemoveStream.apply(this, [this._streams[stream.id] || stream]); - delete this._reverseStreams[this._streams[stream.id] ? this._streams[stream.id].id : stream.id]; - delete this._streams[stream.id]; - }; - - window.RTCPeerConnection.prototype.addTrack = function addTrack(track, stream) { - var _this13 = this; - - if (this.signalingState === 'closed') { - throw new DOMException('The RTCPeerConnection\'s signalingState is \'closed\'.', 'InvalidStateError'); - } - var streams = [].slice.call(arguments, 1); - if (streams.length !== 1 || !streams[0].getTracks().find(function (t) { - return t === track; - })) { - // this is not fully correct but all we can manage without - // [[associated MediaStreams]] internal slot. - throw new DOMException('The adapter.js addTrack polyfill only supports a single ' + ' stream which is associated with the specified track.', 'NotSupportedError'); - } - - var alreadyExists = this.getSenders().find(function (s) { - return s.track === track; - }); - if (alreadyExists) { - throw new DOMException('Track already exists.', 'InvalidAccessError'); - } - - this._streams = this._streams || {}; - this._reverseStreams = this._reverseStreams || {}; - var oldStream = this._streams[stream.id]; - if (oldStream) { - // this is using odd Chrome behaviour, use with caution: - // https://bugs.chromium.org/p/webrtc/issues/detail?id=7815 - // Note: we rely on the high-level addTrack/dtmf shim to - // create the sender with a dtmf sender. - oldStream.addTrack(track); - - // Trigger ONN async. - Promise.resolve().then(function () { - _this13.dispatchEvent(new Event('negotiationneeded')); - }); - } else { - var newStream = new window.MediaStream([track]); - this._streams[stream.id] = newStream; - this._reverseStreams[newStream.id] = stream; - this.addStream(newStream); - } - return this.getSenders().find(function (s) { - return s.track === track; - }); - }; - - // replace the internal stream id with the external one and - // vice versa. - function replaceInternalStreamId(pc, description) { - var sdp = description.sdp; - Object.keys(pc._reverseStreams || []).forEach(function (internalId) { - var externalStream = pc._reverseStreams[internalId]; - var internalStream = pc._streams[externalStream.id]; - sdp = sdp.replace(new RegExp(internalStream.id, 'g'), externalStream.id); - }); - return new RTCSessionDescription({ - type: description.type, - sdp: sdp - }); - } - function replaceExternalStreamId(pc, description) { - var sdp = description.sdp; - Object.keys(pc._reverseStreams || []).forEach(function (internalId) { - var externalStream = pc._reverseStreams[internalId]; - var internalStream = pc._streams[externalStream.id]; - sdp = sdp.replace(new RegExp(externalStream.id, 'g'), internalStream.id); - }); - return new RTCSessionDescription({ - type: description.type, - sdp: sdp - }); - } - ['createOffer', 'createAnswer'].forEach(function (method) { - var nativeMethod = window.RTCPeerConnection.prototype[method]; - var methodObj = _defineProperty({}, method, function () { - var _this14 = this; - - var args = arguments; - var isLegacyCall = arguments.length && typeof arguments[0] === 'function'; - if (isLegacyCall) { - return nativeMethod.apply(this, [function (description) { - var desc = replaceInternalStreamId(_this14, description); - args[0].apply(null, [desc]); - }, function (err) { - if (args[1]) { - args[1].apply(null, err); - } - }, arguments[2]]); - } - return nativeMethod.apply(this, arguments).then(function (description) { - return replaceInternalStreamId(_this14, description); - }); - }); - window.RTCPeerConnection.prototype[method] = methodObj[method]; - }); - - var origSetLocalDescription = window.RTCPeerConnection.prototype.setLocalDescription; - window.RTCPeerConnection.prototype.setLocalDescription = function setLocalDescription() { - if (!arguments.length || !arguments[0].type) { - return origSetLocalDescription.apply(this, arguments); - } - arguments[0] = replaceExternalStreamId(this, arguments[0]); - return origSetLocalDescription.apply(this, arguments); - }; - - // TODO: mangle getStats: https://w3c.github.io/webrtc-stats/#dom-rtcmediastreamstats-streamidentifier - - var origLocalDescription = Object.getOwnPropertyDescriptor(window.RTCPeerConnection.prototype, 'localDescription'); - Object.defineProperty(window.RTCPeerConnection.prototype, 'localDescription', { - get: function get() { - var description = origLocalDescription.get.apply(this); - if (description.type === '') { - return description; - } - return replaceInternalStreamId(this, description); - } - }); - - window.RTCPeerConnection.prototype.removeTrack = function removeTrack(sender) { - var _this15 = this; - - if (this.signalingState === 'closed') { - throw new DOMException('The RTCPeerConnection\'s signalingState is \'closed\'.', 'InvalidStateError'); - } - // We can not yet check for sender instanceof RTCRtpSender - // since we shim RTPSender. So we check if sender._pc is set. - if (!sender._pc) { - throw new DOMException('Argument 1 of RTCPeerConnection.removeTrack ' + 'does not implement interface RTCRtpSender.', 'TypeError'); - } - var isLocal = sender._pc === this; - if (!isLocal) { - throw new DOMException('Sender was not created by this connection.', 'InvalidAccessError'); - } - - // Search for the native stream the senders track belongs to. - this._streams = this._streams || {}; - var stream = void 0; - Object.keys(this._streams).forEach(function (streamid) { - var hasTrack = _this15._streams[streamid].getTracks().find(function (track) { - return sender.track === track; - }); - if (hasTrack) { - stream = _this15._streams[streamid]; - } - }); - - if (stream) { - if (stream.getTracks().length === 1) { - // if this is the last track of the stream, remove the stream. This - // takes care of any shimmed _senders. - this.removeStream(this._reverseStreams[stream.id]); - } else { - // relying on the same odd chrome behaviour as above. - stream.removeTrack(sender.track); - } - this.dispatchEvent(new Event('negotiationneeded')); - } - }; -} - -function shimPeerConnection(window, browserDetails) { - if (!window.RTCPeerConnection && window.webkitRTCPeerConnection) { - // very basic support for old versions. - window.RTCPeerConnection = window.webkitRTCPeerConnection; - } - if (!window.RTCPeerConnection) { - return; - } - - // shim implicit creation of RTCSessionDescription/RTCIceCandidate - if (browserDetails.version < 53) { - ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate'].forEach(function (method) { - var nativeMethod = window.RTCPeerConnection.prototype[method]; - var methodObj = _defineProperty({}, method, function () { - arguments[0] = new (method === 'addIceCandidate' ? window.RTCIceCandidate : window.RTCSessionDescription)(arguments[0]); - return nativeMethod.apply(this, arguments); - }); - window.RTCPeerConnection.prototype[method] = methodObj[method]; - }); - } -} - -// Attempt to fix ONN in plan-b mode. -function fixNegotiationNeeded(window, browserDetails) { - utils.wrapPeerConnectionEvent(window, 'negotiationneeded', function (e) { - var pc = e.target; - if (browserDetails.version < 72 || pc.getConfiguration && pc.getConfiguration().sdpSemantics === 'plan-b') { - if (pc.signalingState !== 'stable') { - return; - } - } - return e; - }); -} - -},{"../utils.js":15,"./getdisplaymedia":4,"./getusermedia":5}],4:[function(require,module,exports){ -/* - * Copyright (c) 2018 The adapter.js project authors. All Rights Reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE file in the root of the source - * tree. - */ -/* eslint-env node */ -'use strict'; - -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.shimGetDisplayMedia = shimGetDisplayMedia; -function shimGetDisplayMedia(window, getSourceId) { - if (window.navigator.mediaDevices && 'getDisplayMedia' in window.navigator.mediaDevices) { - return; - } - if (!window.navigator.mediaDevices) { - return; - } - // getSourceId is a function that returns a promise resolving with - // the sourceId of the screen/window/tab to be shared. - if (typeof getSourceId !== 'function') { - console.error('shimGetDisplayMedia: getSourceId argument is not ' + 'a function'); - return; - } - window.navigator.mediaDevices.getDisplayMedia = function getDisplayMedia(constraints) { - return getSourceId(constraints).then(function (sourceId) { - var widthSpecified = constraints.video && constraints.video.width; - var heightSpecified = constraints.video && constraints.video.height; - var frameRateSpecified = constraints.video && constraints.video.frameRate; - constraints.video = { - mandatory: { - chromeMediaSource: 'desktop', - chromeMediaSourceId: sourceId, - maxFrameRate: frameRateSpecified || 3 - } - }; - if (widthSpecified) { - constraints.video.mandatory.maxWidth = widthSpecified; - } - if (heightSpecified) { - constraints.video.mandatory.maxHeight = heightSpecified; - } - return window.navigator.mediaDevices.getUserMedia(constraints); - }); - }; -} - -},{}],5:[function(require,module,exports){ -/* - * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE file in the root of the source - * tree. - */ -/* eslint-env node */ -'use strict'; - -Object.defineProperty(exports, "__esModule", { - value: true -}); - -var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; - -exports.shimGetUserMedia = shimGetUserMedia; - -var _utils = require('../utils.js'); - -var utils = _interopRequireWildcard(_utils); - -function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } } - -var logging = utils.log; - -function shimGetUserMedia(window, browserDetails) { - var navigator = window && window.navigator; - - if (!navigator.mediaDevices) { - return; - } - - var constraintsToChrome_ = function constraintsToChrome_(c) { - if ((typeof c === 'undefined' ? 'undefined' : _typeof(c)) !== 'object' || c.mandatory || c.optional) { - return c; - } - var cc = {}; - Object.keys(c).forEach(function (key) { - if (key === 'require' || key === 'advanced' || key === 'mediaSource') { - return; - } - var r = _typeof(c[key]) === 'object' ? c[key] : { ideal: c[key] }; - if (r.exact !== undefined && typeof r.exact === 'number') { - r.min = r.max = r.exact; - } - var oldname_ = function oldname_(prefix, name) { - if (prefix) { - return prefix + name.charAt(0).toUpperCase() + name.slice(1); - } - return name === 'deviceId' ? 'sourceId' : name; - }; - if (r.ideal !== undefined) { - cc.optional = cc.optional || []; - var oc = {}; - if (typeof r.ideal === 'number') { - oc[oldname_('min', key)] = r.ideal; - cc.optional.push(oc); - oc = {}; - oc[oldname_('max', key)] = r.ideal; - cc.optional.push(oc); - } else { - oc[oldname_('', key)] = r.ideal; - cc.optional.push(oc); - } - } - if (r.exact !== undefined && typeof r.exact !== 'number') { - cc.mandatory = cc.mandatory || {}; - cc.mandatory[oldname_('', key)] = r.exact; - } else { - ['min', 'max'].forEach(function (mix) { - if (r[mix] !== undefined) { - cc.mandatory = cc.mandatory || {}; - cc.mandatory[oldname_(mix, key)] = r[mix]; - } - }); - } - }); - if (c.advanced) { - cc.optional = (cc.optional || []).concat(c.advanced); - } - return cc; - }; - - var shimConstraints_ = function shimConstraints_(constraints, func) { - if (browserDetails.version >= 61) { - return func(constraints); - } - constraints = JSON.parse(JSON.stringify(constraints)); - if (constraints && _typeof(constraints.audio) === 'object') { - var remap = function remap(obj, a, b) { - if (a in obj && !(b in obj)) { - obj[b] = obj[a]; - delete obj[a]; - } - }; - constraints = JSON.parse(JSON.stringify(constraints)); - remap(constraints.audio, 'autoGainControl', 'googAutoGainControl'); - remap(constraints.audio, 'noiseSuppression', 'googNoiseSuppression'); - constraints.audio = constraintsToChrome_(constraints.audio); - } - if (constraints && _typeof(constraints.video) === 'object') { - // Shim facingMode for mobile & surface pro. - var face = constraints.video.facingMode; - face = face && ((typeof face === 'undefined' ? 'undefined' : _typeof(face)) === 'object' ? face : { ideal: face }); - var getSupportedFacingModeLies = browserDetails.version < 66; - - if (face && (face.exact === 'user' || face.exact === 'environment' || face.ideal === 'user' || face.ideal === 'environment') && !(navigator.mediaDevices.getSupportedConstraints && navigator.mediaDevices.getSupportedConstraints().facingMode && !getSupportedFacingModeLies)) { - delete constraints.video.facingMode; - var matches = void 0; - if (face.exact === 'environment' || face.ideal === 'environment') { - matches = ['back', 'rear']; - } else if (face.exact === 'user' || face.ideal === 'user') { - matches = ['front']; - } - if (matches) { - // Look for matches in label, or use last cam for back (typical). - return navigator.mediaDevices.enumerateDevices().then(function (devices) { - devices = devices.filter(function (d) { - return d.kind === 'videoinput'; - }); - var dev = devices.find(function (d) { - return matches.some(function (match) { - return d.label.toLowerCase().includes(match); - }); - }); - if (!dev && devices.length && matches.includes('back')) { - dev = devices[devices.length - 1]; // more likely the back cam - } - if (dev) { - constraints.video.deviceId = face.exact ? { exact: dev.deviceId } : { ideal: dev.deviceId }; - } - constraints.video = constraintsToChrome_(constraints.video); - logging('chrome: ' + JSON.stringify(constraints)); - return func(constraints); - }); - } - } - constraints.video = constraintsToChrome_(constraints.video); - } - logging('chrome: ' + JSON.stringify(constraints)); - return func(constraints); - }; - - var shimError_ = function shimError_(e) { - if (browserDetails.version >= 64) { - return e; - } - return { - 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 toString() { - return this.name + (this.message && ': ') + this.message; - } - }; - }; - - var getUserMedia_ = function getUserMedia_(constraints, onSuccess, onError) { - shimConstraints_(constraints, function (c) { - navigator.webkitGetUserMedia(c, onSuccess, function (e) { - if (onError) { - onError(shimError_(e)); - } - }); - }); - }; - navigator.getUserMedia = getUserMedia_.bind(navigator); - - // Even though Chrome 45 has navigator.mediaDevices and a getUserMedia - // function which returns a Promise, it does not accept spec-style - // constraints. - if (navigator.mediaDevices.getUserMedia) { - var origGetUserMedia = navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices); - navigator.mediaDevices.getUserMedia = function (cs) { - return shimConstraints_(cs, function (c) { - return origGetUserMedia(c).then(function (stream) { - if (c.audio && !stream.getAudioTracks().length || c.video && !stream.getVideoTracks().length) { - stream.getTracks().forEach(function (track) { - track.stop(); - }); - throw new DOMException('', 'NotFoundError'); - } - return stream; - }, function (e) { - return Promise.reject(shimError_(e)); - }); - }); - }; - } -} - -},{"../utils.js":15}],6:[function(require,module,exports){ -/* - * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE file in the root of the source - * tree. - */ -/* eslint-env node */ -'use strict'; - -Object.defineProperty(exports, "__esModule", { - value: true -}); - -var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; - -exports.shimRTCIceCandidate = shimRTCIceCandidate; -exports.shimMaxMessageSize = shimMaxMessageSize; -exports.shimSendThrowTypeError = shimSendThrowTypeError; -exports.shimConnectionState = shimConnectionState; -exports.removeExtmapAllowMixed = removeExtmapAllowMixed; -exports.shimAddIceCandidateNullOrEmpty = shimAddIceCandidateNullOrEmpty; - -var _sdp = require('sdp'); - -var _sdp2 = _interopRequireDefault(_sdp); - -var _utils = require('./utils'); - -var utils = _interopRequireWildcard(_utils); - -function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } } - -function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } - -function shimRTCIceCandidate(window) { - // foundation is arbitrarily chosen as an indicator for full support for - // https://w3c.github.io/webrtc-pc/#rtcicecandidate-interface - if (!window.RTCIceCandidate || window.RTCIceCandidate && 'foundation' in window.RTCIceCandidate.prototype) { - return; - } - - var NativeRTCIceCandidate = window.RTCIceCandidate; - window.RTCIceCandidate = function RTCIceCandidate(args) { - // Remove the a= which shouldn't be part of the candidate string. - if ((typeof args === 'undefined' ? 'undefined' : _typeof(args)) === 'object' && args.candidate && args.candidate.indexOf('a=') === 0) { - args = JSON.parse(JSON.stringify(args)); - args.candidate = args.candidate.substr(2); - } - - if (args.candidate && args.candidate.length) { - // Augment the native candidate with the parsed fields. - var nativeCandidate = new NativeRTCIceCandidate(args); - var parsedCandidate = _sdp2.default.parseCandidate(args.candidate); - var augmentedCandidate = Object.assign(nativeCandidate, parsedCandidate); - - // Add a serializer that does not serialize the extra attributes. - augmentedCandidate.toJSON = function toJSON() { - return { - candidate: augmentedCandidate.candidate, - sdpMid: augmentedCandidate.sdpMid, - sdpMLineIndex: augmentedCandidate.sdpMLineIndex, - usernameFragment: augmentedCandidate.usernameFragment - }; - }; - return augmentedCandidate; - } - return new NativeRTCIceCandidate(args); - }; - window.RTCIceCandidate.prototype = NativeRTCIceCandidate.prototype; - - // Hook up the augmented candidate in onicecandidate and - // addEventListener('icecandidate', ...) - utils.wrapPeerConnectionEvent(window, 'icecandidate', function (e) { - if (e.candidate) { - Object.defineProperty(e, 'candidate', { - value: new window.RTCIceCandidate(e.candidate), - writable: 'false' - }); - } - return e; - }); -} - -function shimMaxMessageSize(window, browserDetails) { - if (!window.RTCPeerConnection) { - return; - } - - if (!('sctp' in window.RTCPeerConnection.prototype)) { - Object.defineProperty(window.RTCPeerConnection.prototype, 'sctp', { - get: function get() { - return typeof this._sctp === 'undefined' ? null : this._sctp; - } - }); - } - - var sctpInDescription = function sctpInDescription(description) { - if (!description || !description.sdp) { - return false; - } - var sections = _sdp2.default.splitSections(description.sdp); - sections.shift(); - return sections.some(function (mediaSection) { - var mLine = _sdp2.default.parseMLine(mediaSection); - return mLine && mLine.kind === 'application' && mLine.protocol.indexOf('SCTP') !== -1; - }); - }; - - var getRemoteFirefoxVersion = function getRemoteFirefoxVersion(description) { - // TODO: Is there a better solution for detecting Firefox? - var match = description.sdp.match(/mozilla...THIS_IS_SDPARTA-(\d+)/); - if (match === null || match.length < 2) { - return -1; - } - var version = parseInt(match[1], 10); - // Test for NaN (yes, this is ugly) - return version !== version ? -1 : version; - }; - - var getCanSendMaxMessageSize = function getCanSendMaxMessageSize(remoteIsFirefox) { - // Every implementation we know can send at least 64 KiB. - // Note: Although Chrome is technically able to send up to 256 KiB, the - // data does not reach the other peer reliably. - // See: https://bugs.chromium.org/p/webrtc/issues/detail?id=8419 - var canSendMaxMessageSize = 65536; - if (browserDetails.browser === 'firefox') { - if (browserDetails.version < 57) { - if (remoteIsFirefox === -1) { - // FF < 57 will send in 16 KiB chunks using the deprecated PPID - // fragmentation. - canSendMaxMessageSize = 16384; - } else { - // However, other FF (and RAWRTC) can reassemble PPID-fragmented - // messages. Thus, supporting ~2 GiB when sending. - canSendMaxMessageSize = 2147483637; - } - } else if (browserDetails.version < 60) { - // Currently, all FF >= 57 will reset the remote maximum message size - // to the default value when a data channel is created at a later - // stage. :( - // See: https://bugzilla.mozilla.org/show_bug.cgi?id=1426831 - canSendMaxMessageSize = browserDetails.version === 57 ? 65535 : 65536; - } else { - // FF >= 60 supports sending ~2 GiB - canSendMaxMessageSize = 2147483637; - } - } - return canSendMaxMessageSize; - }; - - var getMaxMessageSize = function getMaxMessageSize(description, remoteIsFirefox) { - // Note: 65536 bytes is the default value from the SDP spec. Also, - // every implementation we know supports receiving 65536 bytes. - var maxMessageSize = 65536; - - // FF 57 has a slightly incorrect default remote max message size, so - // we need to adjust it here to avoid a failure when sending. - // See: https://bugzilla.mozilla.org/show_bug.cgi?id=1425697 - if (browserDetails.browser === 'firefox' && browserDetails.version === 57) { - maxMessageSize = 65535; - } - - var match = _sdp2.default.matchPrefix(description.sdp, 'a=max-message-size:'); - if (match.length > 0) { - maxMessageSize = parseInt(match[0].substr(19), 10); - } else if (browserDetails.browser === 'firefox' && remoteIsFirefox !== -1) { - // If the maximum message size is not present in the remote SDP and - // both local and remote are Firefox, the remote peer can receive - // ~2 GiB. - maxMessageSize = 2147483637; - } - return maxMessageSize; - }; - - var origSetRemoteDescription = window.RTCPeerConnection.prototype.setRemoteDescription; - window.RTCPeerConnection.prototype.setRemoteDescription = function setRemoteDescription() { - this._sctp = null; - // Chrome decided to not expose .sctp in plan-b mode. - // As usual, adapter.js has to do an 'ugly worakaround' - // to cover up the mess. - if (browserDetails.browser === 'chrome' && browserDetails.version >= 76) { - var _getConfiguration = this.getConfiguration(), - sdpSemantics = _getConfiguration.sdpSemantics; - - if (sdpSemantics === 'plan-b') { - Object.defineProperty(this, 'sctp', { - get: function get() { - return typeof this._sctp === 'undefined' ? null : this._sctp; - }, - - enumerable: true, - configurable: true - }); - } - } - - if (sctpInDescription(arguments[0])) { - // Check if the remote is FF. - var isFirefox = getRemoteFirefoxVersion(arguments[0]); - - // Get the maximum message size the local peer is capable of sending - var canSendMMS = getCanSendMaxMessageSize(isFirefox); - - // Get the maximum message size of the remote peer. - var remoteMMS = getMaxMessageSize(arguments[0], isFirefox); - - // Determine final maximum message size - var maxMessageSize = void 0; - if (canSendMMS === 0 && remoteMMS === 0) { - maxMessageSize = Number.POSITIVE_INFINITY; - } else if (canSendMMS === 0 || remoteMMS === 0) { - maxMessageSize = Math.max(canSendMMS, remoteMMS); - } else { - maxMessageSize = Math.min(canSendMMS, remoteMMS); - } - - // Create a dummy RTCSctpTransport object and the 'maxMessageSize' - // attribute. - var sctp = {}; - Object.defineProperty(sctp, 'maxMessageSize', { - get: function get() { - return maxMessageSize; - } - }); - this._sctp = sctp; - } - - return origSetRemoteDescription.apply(this, arguments); - }; -} - -function shimSendThrowTypeError(window) { - if (!(window.RTCPeerConnection && 'createDataChannel' in window.RTCPeerConnection.prototype)) { - return; - } - - // Note: Although Firefox >= 57 has a native implementation, the maximum - // message size can be reset for all data channels at a later stage. - // See: https://bugzilla.mozilla.org/show_bug.cgi?id=1426831 - - function wrapDcSend(dc, pc) { - var origDataChannelSend = dc.send; - dc.send = function send() { - var data = arguments[0]; - var length = data.length || data.size || data.byteLength; - if (dc.readyState === 'open' && pc.sctp && length > pc.sctp.maxMessageSize) { - throw new TypeError('Message too large (can send a maximum of ' + pc.sctp.maxMessageSize + ' bytes)'); - } - return origDataChannelSend.apply(dc, arguments); - }; - } - var origCreateDataChannel = window.RTCPeerConnection.prototype.createDataChannel; - window.RTCPeerConnection.prototype.createDataChannel = function createDataChannel() { - var dataChannel = origCreateDataChannel.apply(this, arguments); - wrapDcSend(dataChannel, this); - return dataChannel; - }; - utils.wrapPeerConnectionEvent(window, 'datachannel', function (e) { - wrapDcSend(e.channel, e.target); - return e; - }); -} - -/* shims RTCConnectionState by pretending it is the same as iceConnectionState. - * See https://bugs.chromium.org/p/webrtc/issues/detail?id=6145#c12 - * for why this is a valid hack in Chrome. In Firefox it is slightly incorrect - * since DTLS failures would be hidden. See - * https://bugzilla.mozilla.org/show_bug.cgi?id=1265827 - * for the Firefox tracking bug. - */ -function shimConnectionState(window) { - if (!window.RTCPeerConnection || 'connectionState' in window.RTCPeerConnection.prototype) { - return; - } - var proto = window.RTCPeerConnection.prototype; - Object.defineProperty(proto, 'connectionState', { - get: function get() { - return { - completed: 'connected', - checking: 'connecting' - }[this.iceConnectionState] || this.iceConnectionState; - }, - - enumerable: true, - configurable: true - }); - Object.defineProperty(proto, 'onconnectionstatechange', { - get: function get() { - return this._onconnectionstatechange || null; - }, - set: function set(cb) { - if (this._onconnectionstatechange) { - this.removeEventListener('connectionstatechange', this._onconnectionstatechange); - delete this._onconnectionstatechange; - } - if (cb) { - this.addEventListener('connectionstatechange', this._onconnectionstatechange = cb); - } - }, - - enumerable: true, - configurable: true - }); - - ['setLocalDescription', 'setRemoteDescription'].forEach(function (method) { - var origMethod = proto[method]; - proto[method] = function () { - if (!this._connectionstatechangepoly) { - this._connectionstatechangepoly = function (e) { - var pc = e.target; - if (pc._lastConnectionState !== pc.connectionState) { - pc._lastConnectionState = pc.connectionState; - var newEvent = new Event('connectionstatechange', e); - pc.dispatchEvent(newEvent); - } - return e; - }; - this.addEventListener('iceconnectionstatechange', this._connectionstatechangepoly); - } - return origMethod.apply(this, arguments); - }; - }); -} - -function removeExtmapAllowMixed(window, browserDetails) { - /* remove a=extmap-allow-mixed for webrtc.org < M71 */ - if (!window.RTCPeerConnection) { - return; - } - if (browserDetails.browser === 'chrome' && browserDetails.version >= 71) { - return; - } - if (browserDetails.browser === 'safari' && browserDetails.version >= 605) { - return; - } - var nativeSRD = window.RTCPeerConnection.prototype.setRemoteDescription; - window.RTCPeerConnection.prototype.setRemoteDescription = function setRemoteDescription(desc) { - if (desc && desc.sdp && desc.sdp.indexOf('\na=extmap-allow-mixed') !== -1) { - var sdp = desc.sdp.split('\n').filter(function (line) { - return line.trim() !== 'a=extmap-allow-mixed'; - }).join('\n'); - // Safari enforces read-only-ness of RTCSessionDescription fields. - if (window.RTCSessionDescription && desc instanceof window.RTCSessionDescription) { - arguments[0] = new window.RTCSessionDescription({ - type: desc.type, - sdp: sdp - }); - } else { - desc.sdp = sdp; - } - } - return nativeSRD.apply(this, arguments); - }; -} - -function shimAddIceCandidateNullOrEmpty(window, browserDetails) { - // Support for addIceCandidate(null or undefined) - // as well as addIceCandidate({candidate: "", ...}) - // https://bugs.chromium.org/p/chromium/issues/detail?id=978582 - // Note: must be called before other polyfills which change the signature. - if (!(window.RTCPeerConnection && window.RTCPeerConnection.prototype)) { - return; - } - var nativeAddIceCandidate = window.RTCPeerConnection.prototype.addIceCandidate; - if (!nativeAddIceCandidate || nativeAddIceCandidate.length === 0) { - return; - } - window.RTCPeerConnection.prototype.addIceCandidate = function addIceCandidate() { - if (!arguments[0]) { - if (arguments[1]) { - arguments[1].apply(null); - } - return Promise.resolve(); - } - // Firefox 68+ emits and processes {candidate: "", ...}, ignore - // in older versions. - // Native support for ignoring exists for Chrome M77+. - // Safari ignores as well, exact version unknown but works in the same - // version that also ignores addIceCandidate(null). - if ((browserDetails.browser === 'chrome' && browserDetails.version < 78 || browserDetails.browser === 'firefox' && browserDetails.version < 68 || browserDetails.browser === 'safari') && arguments[0] && arguments[0].candidate === '') { - return Promise.resolve(); - } - return nativeAddIceCandidate.apply(this, arguments); - }; -} - -},{"./utils":15,"sdp":17}],7:[function(require,module,exports){ -/* - * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE file in the root of the source - * tree. - */ -/* eslint-env node */ -'use strict'; - -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.shimGetDisplayMedia = exports.shimGetUserMedia = undefined; - -var _getusermedia = require('./getusermedia'); - -Object.defineProperty(exports, 'shimGetUserMedia', { - enumerable: true, - get: function get() { - return _getusermedia.shimGetUserMedia; - } -}); - -var _getdisplaymedia = require('./getdisplaymedia'); - -Object.defineProperty(exports, 'shimGetDisplayMedia', { - enumerable: true, - get: function get() { - return _getdisplaymedia.shimGetDisplayMedia; - } -}); -exports.shimPeerConnection = shimPeerConnection; -exports.shimReplaceTrack = shimReplaceTrack; - -var _utils = require('../utils'); - -var utils = _interopRequireWildcard(_utils); - -var _filtericeservers = require('./filtericeservers'); - -var _rtcpeerconnectionShim = require('rtcpeerconnection-shim'); - -var _rtcpeerconnectionShim2 = _interopRequireDefault(_rtcpeerconnectionShim); - -function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } - -function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } } - -function shimPeerConnection(window, browserDetails) { - if (window.RTCIceGatherer) { - if (!window.RTCIceCandidate) { - window.RTCIceCandidate = function RTCIceCandidate(args) { - return args; - }; - } - if (!window.RTCSessionDescription) { - window.RTCSessionDescription = function RTCSessionDescription(args) { - return args; - }; - } - // this adds an additional event listener to MediaStrackTrack that signals - // when a tracks enabled property was changed. Workaround for a bug in - // addStream, see below. No longer required in 15025+ - if (browserDetails.version < 15025) { - var origMSTEnabled = Object.getOwnPropertyDescriptor(window.MediaStreamTrack.prototype, 'enabled'); - Object.defineProperty(window.MediaStreamTrack.prototype, 'enabled', { - set: function set(value) { - origMSTEnabled.set.call(this, value); - var ev = new Event('enabled'); - ev.enabled = value; - this.dispatchEvent(ev); - } - }); - } - } - - // ORTC defines the DTMF sender a bit different. - // https://github.com/w3c/ortc/issues/714 - if (window.RTCRtpSender && !('dtmf' in window.RTCRtpSender.prototype)) { - Object.defineProperty(window.RTCRtpSender.prototype, 'dtmf', { - get: function get() { - if (this._dtmf === undefined) { - if (this.track.kind === 'audio') { - this._dtmf = new window.RTCDtmfSender(this); - } else if (this.track.kind === 'video') { - this._dtmf = null; - } - } - return this._dtmf; - } - }); - } - // Edge currently only implements the RTCDtmfSender, not the - // RTCDTMFSender alias. See http://draft.ortc.org/#rtcdtmfsender2* - if (window.RTCDtmfSender && !window.RTCDTMFSender) { - window.RTCDTMFSender = window.RTCDtmfSender; - } - - var RTCPeerConnectionShim = (0, _rtcpeerconnectionShim2.default)(window, browserDetails.version); - window.RTCPeerConnection = function RTCPeerConnection(config) { - if (config && config.iceServers) { - config.iceServers = (0, _filtericeservers.filterIceServers)(config.iceServers, browserDetails.version); - utils.log('ICE servers after filtering:', config.iceServers); - } - return new RTCPeerConnectionShim(config); - }; - window.RTCPeerConnection.prototype = RTCPeerConnectionShim.prototype; -} - -function shimReplaceTrack(window) { - // ORTC has replaceTrack -- https://github.com/w3c/ortc/issues/614 - if (window.RTCRtpSender && !('replaceTrack' in window.RTCRtpSender.prototype)) { - window.RTCRtpSender.prototype.replaceTrack = window.RTCRtpSender.prototype.setTrack; - } -} - -},{"../utils":15,"./filtericeservers":8,"./getdisplaymedia":9,"./getusermedia":10,"rtcpeerconnection-shim":16}],8:[function(require,module,exports){ -/* - * Copyright (c) 2018 The WebRTC project authors. All Rights Reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE file in the root of the source - * tree. - */ -/* eslint-env node */ -'use strict'; - -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.filterIceServers = filterIceServers; - -var _utils = require('../utils'); - -var utils = _interopRequireWildcard(_utils); - -function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } } - -// Edge does not like -// 1) stun: filtered after 14393 unless ?transport=udp is present -// 2) turn: that does not have all of turn:host:port?transport=udp -// 3) turn: with ipv6 addresses -// 4) turn: occurring muliple times -function filterIceServers(iceServers, edgeVersion) { - var hasTurn = false; - iceServers = JSON.parse(JSON.stringify(iceServers)); - return iceServers.filter(function (server) { - if (server && (server.urls || server.url)) { - var urls = server.urls || server.url; - if (server.url && !server.urls) { - utils.deprecated('RTCIceServer.url', 'RTCIceServer.urls'); - } - var isString = typeof urls === 'string'; - if (isString) { - urls = [urls]; - } - urls = urls.filter(function (url) { - // filter STUN unconditionally. - if (url.indexOf('stun:') === 0) { - return false; - } - - var validTurn = url.startsWith('turn') && !url.startsWith('turn:[') && url.includes('transport=udp'); - if (validTurn && !hasTurn) { - hasTurn = true; - return true; - } - return validTurn && !hasTurn; - }); - - delete server.url; - server.urls = isString ? urls[0] : urls; - return !!urls.length; - } - }); -} - -},{"../utils":15}],9:[function(require,module,exports){ -/* - * Copyright (c) 2018 The adapter.js project authors. All Rights Reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE file in the root of the source - * tree. - */ -/* eslint-env node */ -'use strict'; - -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.shimGetDisplayMedia = shimGetDisplayMedia; -function shimGetDisplayMedia(window) { - if (!('getDisplayMedia' in window.navigator)) { - return; - } - if (!window.navigator.mediaDevices) { - return; - } - if (window.navigator.mediaDevices && 'getDisplayMedia' in window.navigator.mediaDevices) { - return; - } - window.navigator.mediaDevices.getDisplayMedia = window.navigator.getDisplayMedia.bind(window.navigator); -} - -},{}],10:[function(require,module,exports){ -/* - * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE file in the root of the source - * tree. - */ -/* eslint-env node */ -'use strict'; - -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.shimGetUserMedia = shimGetUserMedia; -function shimGetUserMedia(window) { - var navigator = window && window.navigator; - - var shimError_ = function shimError_(e) { - return { - name: { PermissionDeniedError: 'NotAllowedError' }[e.name] || e.name, - message: e.message, - constraint: e.constraint, - toString: function toString() { - return this.name; - } - }; - }; - - // getUserMedia error shim. - var origGetUserMedia = navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices); - navigator.mediaDevices.getUserMedia = function (c) { - return origGetUserMedia(c).catch(function (e) { - return Promise.reject(shimError_(e)); - }); - }; -} - -},{}],11:[function(require,module,exports){ -/* - * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE file in the root of the source - * tree. - */ -/* eslint-env node */ -'use strict'; - -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.shimGetDisplayMedia = exports.shimGetUserMedia = undefined; - -var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; - -var _getusermedia = require('./getusermedia'); - -Object.defineProperty(exports, 'shimGetUserMedia', { - enumerable: true, - get: function get() { - return _getusermedia.shimGetUserMedia; - } -}); - -var _getdisplaymedia = require('./getdisplaymedia'); - -Object.defineProperty(exports, 'shimGetDisplayMedia', { - enumerable: true, - get: function get() { - return _getdisplaymedia.shimGetDisplayMedia; - } -}); -exports.shimOnTrack = shimOnTrack; -exports.shimPeerConnection = shimPeerConnection; -exports.shimSenderGetStats = shimSenderGetStats; -exports.shimReceiverGetStats = shimReceiverGetStats; -exports.shimRemoveStream = shimRemoveStream; -exports.shimRTCDataChannel = shimRTCDataChannel; -exports.shimAddTransceiver = shimAddTransceiver; -exports.shimGetParameters = shimGetParameters; -exports.shimCreateOffer = shimCreateOffer; -exports.shimCreateAnswer = shimCreateAnswer; - -var _utils = require('../utils'); - -var utils = _interopRequireWildcard(_utils); - -function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } } - -function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } - -function shimOnTrack(window) { - if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCTrackEvent && 'receiver' in window.RTCTrackEvent.prototype && !('transceiver' in window.RTCTrackEvent.prototype)) { - Object.defineProperty(window.RTCTrackEvent.prototype, 'transceiver', { - get: function get() { - return { receiver: this.receiver }; - } - }); - } -} - -function shimPeerConnection(window, browserDetails) { - if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) !== 'object' || !(window.RTCPeerConnection || window.mozRTCPeerConnection)) { - return; // probably media.peerconnection.enabled=false in about:config - } - if (!window.RTCPeerConnection && window.mozRTCPeerConnection) { - // very basic support for old versions. - window.RTCPeerConnection = window.mozRTCPeerConnection; - } - - if (browserDetails.version < 53) { - // shim away need for obsolete RTCIceCandidate/RTCSessionDescription. - ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate'].forEach(function (method) { - var nativeMethod = window.RTCPeerConnection.prototype[method]; - var methodObj = _defineProperty({}, method, function () { - arguments[0] = new (method === 'addIceCandidate' ? window.RTCIceCandidate : window.RTCSessionDescription)(arguments[0]); - return nativeMethod.apply(this, arguments); - }); - window.RTCPeerConnection.prototype[method] = methodObj[method]; - }); - } - - var modernStatsTypes = { - inboundrtp: 'inbound-rtp', - outboundrtp: 'outbound-rtp', - candidatepair: 'candidate-pair', - localcandidate: 'local-candidate', - remotecandidate: 'remote-candidate' - }; - - var nativeGetStats = window.RTCPeerConnection.prototype.getStats; - window.RTCPeerConnection.prototype.getStats = function getStats() { - var _arguments = Array.prototype.slice.call(arguments), - selector = _arguments[0], - onSucc = _arguments[1], - onErr = _arguments[2]; - - return nativeGetStats.apply(this, [selector || null]).then(function (stats) { - if (browserDetails.version < 53 && !onSucc) { - // Shim only promise getStats with spec-hyphens in type names - // Leave callback version alone; misc old uses of forEach before Map - try { - stats.forEach(function (stat) { - stat.type = modernStatsTypes[stat.type] || stat.type; - }); - } catch (e) { - if (e.name !== 'TypeError') { - throw e; - } - // Avoid TypeError: "type" is read-only, in old versions. 34-43ish - stats.forEach(function (stat, i) { - stats.set(i, Object.assign({}, stat, { - type: modernStatsTypes[stat.type] || stat.type - })); - }); - } - } - return stats; - }).then(onSucc, onErr); - }; -} - -function shimSenderGetStats(window) { - if (!((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCPeerConnection && window.RTCRtpSender)) { - return; - } - if (window.RTCRtpSender && 'getStats' in window.RTCRtpSender.prototype) { - return; - } - var origGetSenders = window.RTCPeerConnection.prototype.getSenders; - if (origGetSenders) { - window.RTCPeerConnection.prototype.getSenders = function getSenders() { - var _this = this; - - var senders = origGetSenders.apply(this, []); - senders.forEach(function (sender) { - return sender._pc = _this; - }); - return senders; - }; - } - - var origAddTrack = window.RTCPeerConnection.prototype.addTrack; - if (origAddTrack) { - window.RTCPeerConnection.prototype.addTrack = function addTrack() { - var sender = origAddTrack.apply(this, arguments); - sender._pc = this; - return sender; - }; - } - window.RTCRtpSender.prototype.getStats = function getStats() { - return this.track ? this._pc.getStats(this.track) : Promise.resolve(new Map()); - }; -} - -function shimReceiverGetStats(window) { - if (!((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCPeerConnection && window.RTCRtpSender)) { - return; - } - if (window.RTCRtpSender && 'getStats' in window.RTCRtpReceiver.prototype) { - return; - } - var origGetReceivers = window.RTCPeerConnection.prototype.getReceivers; - if (origGetReceivers) { - window.RTCPeerConnection.prototype.getReceivers = function getReceivers() { - var _this2 = this; - - var receivers = origGetReceivers.apply(this, []); - receivers.forEach(function (receiver) { - return receiver._pc = _this2; - }); - return receivers; - }; - } - utils.wrapPeerConnectionEvent(window, 'track', function (e) { - e.receiver._pc = e.srcElement; - return e; - }); - window.RTCRtpReceiver.prototype.getStats = function getStats() { - return this._pc.getStats(this.track); - }; -} - -function shimRemoveStream(window) { - if (!window.RTCPeerConnection || 'removeStream' in window.RTCPeerConnection.prototype) { - return; - } - window.RTCPeerConnection.prototype.removeStream = function removeStream(stream) { - var _this3 = this; - - utils.deprecated('removeStream', 'removeTrack'); - this.getSenders().forEach(function (sender) { - if (sender.track && stream.getTracks().includes(sender.track)) { - _this3.removeTrack(sender); - } - }); - }; -} - -function shimRTCDataChannel(window) { - // rename DataChannel to RTCDataChannel (native fix in FF60): - // https://bugzilla.mozilla.org/show_bug.cgi?id=1173851 - if (window.DataChannel && !window.RTCDataChannel) { - window.RTCDataChannel = window.DataChannel; - } -} - -function shimAddTransceiver(window) { - // https://github.com/webrtcHacks/adapter/issues/998#issuecomment-516921647 - // Firefox ignores the init sendEncodings options passed to addTransceiver - // https://bugzilla.mozilla.org/show_bug.cgi?id=1396918 - if (!((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCPeerConnection)) { - return; - } - var origAddTransceiver = window.RTCPeerConnection.prototype.addTransceiver; - if (origAddTransceiver) { - window.RTCPeerConnection.prototype.addTransceiver = function addTransceiver() { - this.setParametersPromises = []; - var initParameters = arguments[1]; - var shouldPerformCheck = initParameters && 'sendEncodings' in initParameters; - if (shouldPerformCheck) { - // If sendEncodings params are provided, validate grammar - initParameters.sendEncodings.forEach(function (encodingParam) { - if ('rid' in encodingParam) { - var ridRegex = /^[a-z0-9]{0,16}$/i; - if (!ridRegex.test(encodingParam.rid)) { - throw new TypeError('Invalid RID value provided.'); - } - } - if ('scaleResolutionDownBy' in encodingParam) { - if (!(parseFloat(encodingParam.scaleResolutionDownBy) >= 1.0)) { - throw new RangeError('scale_resolution_down_by must be >= 1.0'); - } - } - if ('maxFramerate' in encodingParam) { - if (!(parseFloat(encodingParam.maxFramerate) >= 0)) { - throw new RangeError('max_framerate must be >= 0.0'); - } - } - }); - } - var transceiver = origAddTransceiver.apply(this, arguments); - if (shouldPerformCheck) { - // Check if the init options were applied. If not we do this in an - // asynchronous way and save the promise reference in a global object. - // This is an ugly hack, but at the same time is way more robust than - // checking the sender parameters before and after the createOffer - // Also note that after the createoffer we are not 100% sure that - // the params were asynchronously applied so we might miss the - // opportunity to recreate offer. - var sender = transceiver.sender; - - var params = sender.getParameters(); - if (!('encodings' in params) || - // Avoid being fooled by patched getParameters() below. - params.encodings.length === 1 && Object.keys(params.encodings[0]).length === 0) { - params.encodings = initParameters.sendEncodings; - sender.sendEncodings = initParameters.sendEncodings; - this.setParametersPromises.push(sender.setParameters(params).then(function () { - delete sender.sendEncodings; - }).catch(function () { - delete sender.sendEncodings; - })); - } - } - return transceiver; - }; - } -} - -function shimGetParameters(window) { - if (!((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCRtpSender)) { - return; - } - var origGetParameters = window.RTCRtpSender.prototype.getParameters; - if (origGetParameters) { - window.RTCRtpSender.prototype.getParameters = function getParameters() { - var params = origGetParameters.apply(this, arguments); - if (!('encodings' in params)) { - params.encodings = [].concat(this.sendEncodings || [{}]); - } - return params; - }; - } -} - -function shimCreateOffer(window) { - // https://github.com/webrtcHacks/adapter/issues/998#issuecomment-516921647 - // Firefox ignores the init sendEncodings options passed to addTransceiver - // https://bugzilla.mozilla.org/show_bug.cgi?id=1396918 - if (!((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCPeerConnection)) { - return; - } - var origCreateOffer = window.RTCPeerConnection.prototype.createOffer; - window.RTCPeerConnection.prototype.createOffer = function createOffer() { - var _this4 = this, - _arguments2 = arguments; - - if (this.setParametersPromises && this.setParametersPromises.length) { - return Promise.all(this.setParametersPromises).then(function () { - return origCreateOffer.apply(_this4, _arguments2); - }).finally(function () { - _this4.setParametersPromises = []; - }); - } - return origCreateOffer.apply(this, arguments); - }; -} - -function shimCreateAnswer(window) { - // https://github.com/webrtcHacks/adapter/issues/998#issuecomment-516921647 - // Firefox ignores the init sendEncodings options passed to addTransceiver - // https://bugzilla.mozilla.org/show_bug.cgi?id=1396918 - if (!((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCPeerConnection)) { - return; - } - var origCreateAnswer = window.RTCPeerConnection.prototype.createAnswer; - window.RTCPeerConnection.prototype.createAnswer = function createAnswer() { - var _this5 = this, - _arguments3 = arguments; - - if (this.setParametersPromises && this.setParametersPromises.length) { - return Promise.all(this.setParametersPromises).then(function () { - return origCreateAnswer.apply(_this5, _arguments3); - }).finally(function () { - _this5.setParametersPromises = []; - }); - } - return origCreateAnswer.apply(this, arguments); - }; -} - -},{"../utils":15,"./getdisplaymedia":12,"./getusermedia":13}],12:[function(require,module,exports){ -/* - * Copyright (c) 2018 The adapter.js project authors. All Rights Reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE file in the root of the source - * tree. - */ -/* eslint-env node */ -'use strict'; - -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.shimGetDisplayMedia = shimGetDisplayMedia; -function shimGetDisplayMedia(window, preferredMediaSource) { - if (window.navigator.mediaDevices && 'getDisplayMedia' in window.navigator.mediaDevices) { - return; - } - if (!window.navigator.mediaDevices) { - return; - } - window.navigator.mediaDevices.getDisplayMedia = function getDisplayMedia(constraints) { - if (!(constraints && constraints.video)) { - var err = new DOMException('getDisplayMedia without video ' + 'constraints is undefined'); - err.name = 'NotFoundError'; - // from https://heycam.github.io/webidl/#idl-DOMException-error-names - err.code = 8; - return Promise.reject(err); - } - if (constraints.video === true) { - constraints.video = { mediaSource: preferredMediaSource }; - } else { - constraints.video.mediaSource = preferredMediaSource; - } - return window.navigator.mediaDevices.getUserMedia(constraints); - }; -} - -},{}],13:[function(require,module,exports){ -/* - * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE file in the root of the source - * tree. - */ -/* eslint-env node */ -'use strict'; - -Object.defineProperty(exports, "__esModule", { - value: true -}); - -var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; - -exports.shimGetUserMedia = shimGetUserMedia; - -var _utils = require('../utils'); - -var utils = _interopRequireWildcard(_utils); - -function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } } - -function shimGetUserMedia(window, browserDetails) { - var navigator = window && window.navigator; - var MediaStreamTrack = window && window.MediaStreamTrack; - - navigator.getUserMedia = function (constraints, onSuccess, onError) { - // Replace Firefox 44+'s deprecation warning with unprefixed version. - utils.deprecated('navigator.getUserMedia', 'navigator.mediaDevices.getUserMedia'); - navigator.mediaDevices.getUserMedia(constraints).then(onSuccess, onError); - }; - - if (!(browserDetails.version > 55 && 'autoGainControl' in navigator.mediaDevices.getSupportedConstraints())) { - var remap = function remap(obj, a, b) { - if (a in obj && !(b in obj)) { - obj[b] = obj[a]; - delete obj[a]; - } - }; - - var nativeGetUserMedia = navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices); - navigator.mediaDevices.getUserMedia = function (c) { - if ((typeof c === 'undefined' ? 'undefined' : _typeof(c)) === 'object' && _typeof(c.audio) === 'object') { - c = JSON.parse(JSON.stringify(c)); - remap(c.audio, 'autoGainControl', 'mozAutoGainControl'); - remap(c.audio, 'noiseSuppression', 'mozNoiseSuppression'); - } - return nativeGetUserMedia(c); - }; - - if (MediaStreamTrack && MediaStreamTrack.prototype.getSettings) { - var nativeGetSettings = MediaStreamTrack.prototype.getSettings; - MediaStreamTrack.prototype.getSettings = function () { - var obj = nativeGetSettings.apply(this, arguments); - remap(obj, 'mozAutoGainControl', 'autoGainControl'); - remap(obj, 'mozNoiseSuppression', 'noiseSuppression'); - return obj; - }; - } - - if (MediaStreamTrack && MediaStreamTrack.prototype.applyConstraints) { - var nativeApplyConstraints = MediaStreamTrack.prototype.applyConstraints; - MediaStreamTrack.prototype.applyConstraints = function (c) { - if (this.kind === 'audio' && (typeof c === 'undefined' ? 'undefined' : _typeof(c)) === 'object') { - c = JSON.parse(JSON.stringify(c)); - remap(c, 'autoGainControl', 'mozAutoGainControl'); - remap(c, 'noiseSuppression', 'mozNoiseSuppression'); - } - return nativeApplyConstraints.apply(this, [c]); - }; - } - } -} - -},{"../utils":15}],14:[function(require,module,exports){ -/* - * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE file in the root of the source - * tree. - */ -'use strict'; - -Object.defineProperty(exports, "__esModule", { - value: true -}); - -var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; - -exports.shimLocalStreamsAPI = shimLocalStreamsAPI; -exports.shimRemoteStreamsAPI = shimRemoteStreamsAPI; -exports.shimCallbacksAPI = shimCallbacksAPI; -exports.shimGetUserMedia = shimGetUserMedia; -exports.shimConstraints = shimConstraints; -exports.shimRTCIceServerUrls = shimRTCIceServerUrls; -exports.shimTrackEventTransceiver = shimTrackEventTransceiver; -exports.shimCreateOfferLegacy = shimCreateOfferLegacy; -exports.shimAudioContext = shimAudioContext; - -var _utils = require('../utils'); - -var utils = _interopRequireWildcard(_utils); - -function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } } - -function shimLocalStreamsAPI(window) { - if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) !== 'object' || !window.RTCPeerConnection) { - return; - } - if (!('getLocalStreams' in window.RTCPeerConnection.prototype)) { - window.RTCPeerConnection.prototype.getLocalStreams = function getLocalStreams() { - if (!this._localStreams) { - this._localStreams = []; - } - return this._localStreams; - }; - } - if (!('addStream' in window.RTCPeerConnection.prototype)) { - var _addTrack = window.RTCPeerConnection.prototype.addTrack; - window.RTCPeerConnection.prototype.addStream = function addStream(stream) { - var _this = this; - - if (!this._localStreams) { - this._localStreams = []; - } - if (!this._localStreams.includes(stream)) { - this._localStreams.push(stream); - } - // Try to emulate Chrome's behaviour of adding in audio-video order. - // Safari orders by track id. - stream.getAudioTracks().forEach(function (track) { - return _addTrack.call(_this, track, stream); - }); - stream.getVideoTracks().forEach(function (track) { - return _addTrack.call(_this, track, stream); - }); - }; - - window.RTCPeerConnection.prototype.addTrack = function addTrack(track) { - var _this2 = this; - - for (var _len = arguments.length, streams = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) { - streams[_key - 1] = arguments[_key]; - } - - if (streams) { - streams.forEach(function (stream) { - if (!_this2._localStreams) { - _this2._localStreams = [stream]; - } else if (!_this2._localStreams.includes(stream)) { - _this2._localStreams.push(stream); - } - }); - } - return _addTrack.apply(this, arguments); - }; - } - if (!('removeStream' in window.RTCPeerConnection.prototype)) { - window.RTCPeerConnection.prototype.removeStream = function removeStream(stream) { - var _this3 = this; - - if (!this._localStreams) { - this._localStreams = []; - } - var index = this._localStreams.indexOf(stream); - if (index === -1) { - return; - } - this._localStreams.splice(index, 1); - var tracks = stream.getTracks(); - this.getSenders().forEach(function (sender) { - if (tracks.includes(sender.track)) { - _this3.removeTrack(sender); - } - }); - }; - } -} - -function shimRemoteStreamsAPI(window) { - if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) !== 'object' || !window.RTCPeerConnection) { - return; - } - if (!('getRemoteStreams' in window.RTCPeerConnection.prototype)) { - window.RTCPeerConnection.prototype.getRemoteStreams = function getRemoteStreams() { - return this._remoteStreams ? this._remoteStreams : []; - }; - } - if (!('onaddstream' in window.RTCPeerConnection.prototype)) { - Object.defineProperty(window.RTCPeerConnection.prototype, 'onaddstream', { - get: function get() { - return this._onaddstream; - }, - set: function set(f) { - var _this4 = this; - - if (this._onaddstream) { - this.removeEventListener('addstream', this._onaddstream); - this.removeEventListener('track', this._onaddstreampoly); - } - this.addEventListener('addstream', this._onaddstream = f); - this.addEventListener('track', this._onaddstreampoly = function (e) { - e.streams.forEach(function (stream) { - if (!_this4._remoteStreams) { - _this4._remoteStreams = []; - } - if (_this4._remoteStreams.includes(stream)) { - return; - } - _this4._remoteStreams.push(stream); - var event = new Event('addstream'); - event.stream = stream; - _this4.dispatchEvent(event); - }); - }); - } - }); - var origSetRemoteDescription = window.RTCPeerConnection.prototype.setRemoteDescription; - window.RTCPeerConnection.prototype.setRemoteDescription = function setRemoteDescription() { - var pc = this; - if (!this._onaddstreampoly) { - this.addEventListener('track', this._onaddstreampoly = function (e) { - e.streams.forEach(function (stream) { - if (!pc._remoteStreams) { - pc._remoteStreams = []; - } - if (pc._remoteStreams.indexOf(stream) >= 0) { - return; - } - pc._remoteStreams.push(stream); - var event = new Event('addstream'); - event.stream = stream; - pc.dispatchEvent(event); - }); - }); - } - return origSetRemoteDescription.apply(pc, arguments); - }; - } -} - -function shimCallbacksAPI(window) { - if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) !== 'object' || !window.RTCPeerConnection) { - return; - } - var prototype = window.RTCPeerConnection.prototype; - var origCreateOffer = prototype.createOffer; - var origCreateAnswer = prototype.createAnswer; - var setLocalDescription = prototype.setLocalDescription; - var setRemoteDescription = prototype.setRemoteDescription; - var addIceCandidate = prototype.addIceCandidate; - - prototype.createOffer = function createOffer(successCallback, failureCallback) { - var options = arguments.length >= 2 ? arguments[2] : arguments[0]; - var promise = origCreateOffer.apply(this, [options]); - if (!failureCallback) { - return promise; - } - promise.then(successCallback, failureCallback); - return Promise.resolve(); - }; - - prototype.createAnswer = function createAnswer(successCallback, failureCallback) { - var options = arguments.length >= 2 ? arguments[2] : arguments[0]; - var promise = origCreateAnswer.apply(this, [options]); - if (!failureCallback) { - return promise; - } - promise.then(successCallback, failureCallback); - return Promise.resolve(); - }; - - var withCallback = function withCallback(description, successCallback, failureCallback) { - var promise = setLocalDescription.apply(this, [description]); - if (!failureCallback) { - return promise; - } - promise.then(successCallback, failureCallback); - return Promise.resolve(); - }; - prototype.setLocalDescription = withCallback; - - withCallback = function withCallback(description, successCallback, failureCallback) { - var promise = setRemoteDescription.apply(this, [description]); - if (!failureCallback) { - return promise; - } - promise.then(successCallback, failureCallback); - return Promise.resolve(); - }; - prototype.setRemoteDescription = withCallback; - - withCallback = function withCallback(candidate, successCallback, failureCallback) { - var promise = addIceCandidate.apply(this, [candidate]); - if (!failureCallback) { - return promise; - } - promise.then(successCallback, failureCallback); - return Promise.resolve(); - }; - prototype.addIceCandidate = withCallback; -} - -function shimGetUserMedia(window) { - var navigator = window && window.navigator; - - if (navigator.mediaDevices && navigator.mediaDevices.getUserMedia) { - // shim not needed in Safari 12.1 - var mediaDevices = navigator.mediaDevices; - var _getUserMedia = mediaDevices.getUserMedia.bind(mediaDevices); - navigator.mediaDevices.getUserMedia = function (constraints) { - return _getUserMedia(shimConstraints(constraints)); - }; - } - - if (!navigator.getUserMedia && navigator.mediaDevices && navigator.mediaDevices.getUserMedia) { - navigator.getUserMedia = function getUserMedia(constraints, cb, errcb) { - navigator.mediaDevices.getUserMedia(constraints).then(cb, errcb); - }.bind(navigator); - } -} - -function shimConstraints(constraints) { - if (constraints && constraints.video !== undefined) { - return Object.assign({}, constraints, { video: utils.compactObject(constraints.video) }); - } - - return constraints; -} - -function shimRTCIceServerUrls(window) { - if (!window.RTCPeerConnection) { - return; - } - // migrate from non-spec RTCIceServer.url to RTCIceServer.urls - var OrigPeerConnection = window.RTCPeerConnection; - window.RTCPeerConnection = function RTCPeerConnection(pcConfig, pcConstraints) { - if (pcConfig && pcConfig.iceServers) { - var newIceServers = []; - for (var i = 0; i < pcConfig.iceServers.length; i++) { - var server = pcConfig.iceServers[i]; - if (!server.hasOwnProperty('urls') && server.hasOwnProperty('url')) { - utils.deprecated('RTCIceServer.url', 'RTCIceServer.urls'); - server = JSON.parse(JSON.stringify(server)); - server.urls = server.url; - delete server.url; - newIceServers.push(server); - } else { - newIceServers.push(pcConfig.iceServers[i]); - } - } - pcConfig.iceServers = newIceServers; - } - return new OrigPeerConnection(pcConfig, pcConstraints); - }; - window.RTCPeerConnection.prototype = OrigPeerConnection.prototype; - // wrap static methods. Currently just generateCertificate. - if ('generateCertificate' in OrigPeerConnection) { - Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', { - get: function get() { - return OrigPeerConnection.generateCertificate; - } - }); - } -} - -function shimTrackEventTransceiver(window) { - // Add event.transceiver member over deprecated event.receiver - if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCTrackEvent && 'receiver' in window.RTCTrackEvent.prototype && !('transceiver' in window.RTCTrackEvent.prototype)) { - Object.defineProperty(window.RTCTrackEvent.prototype, 'transceiver', { - get: function get() { - return { receiver: this.receiver }; - } - }); - } -} - -function shimCreateOfferLegacy(window) { - var origCreateOffer = window.RTCPeerConnection.prototype.createOffer; - window.RTCPeerConnection.prototype.createOffer = function createOffer(offerOptions) { - if (offerOptions) { - if (typeof offerOptions.offerToReceiveAudio !== 'undefined') { - // support bit values - offerOptions.offerToReceiveAudio = !!offerOptions.offerToReceiveAudio; - } - var audioTransceiver = this.getTransceivers().find(function (transceiver) { - return transceiver.receiver.track.kind === 'audio'; - }); - if (offerOptions.offerToReceiveAudio === false && audioTransceiver) { - if (audioTransceiver.direction === 'sendrecv') { - if (audioTransceiver.setDirection) { - audioTransceiver.setDirection('sendonly'); - } else { - audioTransceiver.direction = 'sendonly'; - } - } else if (audioTransceiver.direction === 'recvonly') { - if (audioTransceiver.setDirection) { - audioTransceiver.setDirection('inactive'); - } else { - audioTransceiver.direction = 'inactive'; - } - } - } else if (offerOptions.offerToReceiveAudio === true && !audioTransceiver) { - this.addTransceiver('audio'); - } - - if (typeof offerOptions.offerToReceiveVideo !== 'undefined') { - // support bit values - offerOptions.offerToReceiveVideo = !!offerOptions.offerToReceiveVideo; - } - var videoTransceiver = this.getTransceivers().find(function (transceiver) { - return transceiver.receiver.track.kind === 'video'; - }); - if (offerOptions.offerToReceiveVideo === false && videoTransceiver) { - if (videoTransceiver.direction === 'sendrecv') { - if (videoTransceiver.setDirection) { - videoTransceiver.setDirection('sendonly'); - } else { - videoTransceiver.direction = 'sendonly'; - } - } else if (videoTransceiver.direction === 'recvonly') { - if (videoTransceiver.setDirection) { - videoTransceiver.setDirection('inactive'); - } else { - videoTransceiver.direction = 'inactive'; - } - } - } else if (offerOptions.offerToReceiveVideo === true && !videoTransceiver) { - this.addTransceiver('video'); - } - } - return origCreateOffer.apply(this, arguments); - }; -} - -function shimAudioContext(window) { - if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) !== 'object' || window.AudioContext) { - return; - } - window.AudioContext = window.webkitAudioContext; -} - -},{"../utils":15}],15:[function(require,module,exports){ -/* - * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE file in the root of the source - * tree. - */ -/* eslint-env node */ -'use strict'; - -Object.defineProperty(exports, "__esModule", { - value: true -}); - -var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; - -exports.extractVersion = extractVersion; -exports.wrapPeerConnectionEvent = wrapPeerConnectionEvent; -exports.disableLog = disableLog; -exports.disableWarnings = disableWarnings; -exports.log = log; -exports.deprecated = deprecated; -exports.detectBrowser = detectBrowser; -exports.compactObject = compactObject; -exports.walkStats = walkStats; -exports.filterStats = filterStats; - -function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } - -var logDisabled_ = true; -var deprecationWarnings_ = true; - -/** - * Extract browser version out of the provided user agent string. - * - * @param {!string} uastring userAgent string. - * @param {!string} expr Regular expression used as match criteria. - * @param {!number} pos position in the version string to be returned. - * @return {!number} browser version. - */ -function extractVersion(uastring, expr, pos) { - var match = uastring.match(expr); - return match && match.length >= pos && parseInt(match[pos], 10); -} - -// Wraps the peerconnection event eventNameToWrap in a function -// which returns the modified event object (or false to prevent -// the event). -function wrapPeerConnectionEvent(window, eventNameToWrap, wrapper) { - if (!window.RTCPeerConnection) { - return; - } - var proto = window.RTCPeerConnection.prototype; - var nativeAddEventListener = proto.addEventListener; - proto.addEventListener = function (nativeEventName, cb) { - if (nativeEventName !== eventNameToWrap) { - return nativeAddEventListener.apply(this, arguments); - } - var wrappedCallback = function wrappedCallback(e) { - var modifiedEvent = wrapper(e); - if (modifiedEvent) { - if (cb.handleEvent) { - cb.handleEvent(modifiedEvent); - } else { - cb(modifiedEvent); - } - } - }; - this._eventMap = this._eventMap || {}; - if (!this._eventMap[eventNameToWrap]) { - this._eventMap[eventNameToWrap] = new Map(); - } - this._eventMap[eventNameToWrap].set(cb, wrappedCallback); - return nativeAddEventListener.apply(this, [nativeEventName, wrappedCallback]); - }; - - var nativeRemoveEventListener = proto.removeEventListener; - proto.removeEventListener = function (nativeEventName, cb) { - if (nativeEventName !== eventNameToWrap || !this._eventMap || !this._eventMap[eventNameToWrap]) { - return nativeRemoveEventListener.apply(this, arguments); - } - if (!this._eventMap[eventNameToWrap].has(cb)) { - return nativeRemoveEventListener.apply(this, arguments); - } - var unwrappedCb = this._eventMap[eventNameToWrap].get(cb); - this._eventMap[eventNameToWrap].delete(cb); - if (this._eventMap[eventNameToWrap].size === 0) { - delete this._eventMap[eventNameToWrap]; - } - if (Object.keys(this._eventMap).length === 0) { - delete this._eventMap; - } - return nativeRemoveEventListener.apply(this, [nativeEventName, unwrappedCb]); - }; - - Object.defineProperty(proto, 'on' + eventNameToWrap, { - get: function get() { - return this['_on' + eventNameToWrap]; - }, - set: function set(cb) { - if (this['_on' + eventNameToWrap]) { - this.removeEventListener(eventNameToWrap, this['_on' + eventNameToWrap]); - delete this['_on' + eventNameToWrap]; - } - if (cb) { - this.addEventListener(eventNameToWrap, this['_on' + eventNameToWrap] = cb); - } - }, - - enumerable: true, - configurable: true - }); -} - -function disableLog(bool) { - if (typeof bool !== 'boolean') { - return new Error('Argument type: ' + (typeof bool === 'undefined' ? 'undefined' : _typeof(bool)) + '. Please use a boolean.'); - } - logDisabled_ = bool; - return bool ? 'adapter.js logging disabled' : 'adapter.js logging enabled'; -} - -/** - * Disable or enable deprecation warnings - * @param {!boolean} bool set to true to disable warnings. - */ -function disableWarnings(bool) { - if (typeof bool !== 'boolean') { - return new Error('Argument type: ' + (typeof bool === 'undefined' ? 'undefined' : _typeof(bool)) + '. Please use a boolean.'); - } - deprecationWarnings_ = !bool; - return 'adapter.js deprecation warnings ' + (bool ? 'disabled' : 'enabled'); -} - -function log() { - if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object') { - if (logDisabled_) { - return; - } - if (typeof console !== 'undefined' && typeof console.log === 'function') { - console.log.apply(console, arguments); - } - } -} - -/** - * Shows a deprecation warning suggesting the modern and spec-compatible API. - */ -function deprecated(oldMethod, newMethod) { - if (!deprecationWarnings_) { - return; - } - console.warn(oldMethod + ' is deprecated, please use ' + newMethod + ' instead.'); -} - -/** - * Browser detector. - * - * @return {object} result containing browser and version - * properties. - */ -function detectBrowser(window) { - // Returned result object. - var result = { browser: null, version: null }; - - // Fail early if it's not a browser - if (typeof window === 'undefined' || !window.navigator) { - result.browser = 'Not a browser.'; - return result; - } - - var navigator = window.navigator; - - - if (navigator.mozGetUserMedia) { - // Firefox. - result.browser = 'firefox'; - result.version = extractVersion(navigator.userAgent, /Firefox\/(\d+)\./, 1); - } else if (navigator.webkitGetUserMedia || window.isSecureContext === false && window.webkitRTCPeerConnection && !window.RTCIceGatherer) { - // Chrome, Chromium, Webview, Opera. - // Version matches Chrome/WebRTC version. - // Chrome 74 removed webkitGetUserMedia on http as well so we need the - // more complicated fallback to webkitRTCPeerConnection. - result.browser = 'chrome'; - result.version = extractVersion(navigator.userAgent, /Chrom(e|ium)\/(\d+)\./, 2); - } else if (navigator.mediaDevices && navigator.userAgent.match(/Edge\/(\d+).(\d+)$/)) { - // Edge. - result.browser = 'edge'; - result.version = extractVersion(navigator.userAgent, /Edge\/(\d+).(\d+)$/, 2); - } else if (window.RTCPeerConnection && navigator.userAgent.match(/AppleWebKit\/(\d+)\./)) { - // Safari. - result.browser = 'safari'; - result.version = extractVersion(navigator.userAgent, /AppleWebKit\/(\d+)\./, 1); - result.supportsUnifiedPlan = window.RTCRtpTransceiver && 'currentDirection' in window.RTCRtpTransceiver.prototype; - } else { - // Default fallthrough: not supported. - result.browser = 'Not a supported browser.'; - return result; - } - - return result; -} - -/** - * Checks if something is an object. - * - * @param {*} val The something you want to check. - * @return true if val is an object, false otherwise. - */ -function isObject(val) { - return Object.prototype.toString.call(val) === '[object Object]'; -} - -/** - * Remove all empty objects and undefined values - * from a nested object -- an enhanced and vanilla version - * of Lodash's `compact`. - */ -function compactObject(data) { - if (!isObject(data)) { - return data; - } - - return Object.keys(data).reduce(function (accumulator, key) { - var isObj = isObject(data[key]); - var value = isObj ? compactObject(data[key]) : data[key]; - var isEmptyObject = isObj && !Object.keys(value).length; - if (value === undefined || isEmptyObject) { - return accumulator; - } - return Object.assign(accumulator, _defineProperty({}, key, value)); - }, {}); -} - -/* iterates the stats graph recursively. */ -function walkStats(stats, base, resultSet) { - if (!base || resultSet.has(base.id)) { - return; - } - resultSet.set(base.id, base); - Object.keys(base).forEach(function (name) { - if (name.endsWith('Id')) { - walkStats(stats, stats.get(base[name]), resultSet); - } else if (name.endsWith('Ids')) { - base[name].forEach(function (id) { - walkStats(stats, stats.get(id), resultSet); - }); - } - }); -} - -/* filter getStats for a sender/receiver track. */ -function filterStats(result, track, outbound) { - var streamStatsType = outbound ? 'outbound-rtp' : 'inbound-rtp'; - var filteredResult = new Map(); - if (track === null) { - return filteredResult; - } - var trackStats = []; - result.forEach(function (value) { - if (value.type === 'track' && value.trackIdentifier === track.id) { - trackStats.push(value); - } - }); - trackStats.forEach(function (trackStat) { - result.forEach(function (stats) { - if (stats.type === streamStatsType && stats.trackId === trackStat.id) { - walkStats(result, stats, filteredResult); - } - }); - }); - return filteredResult; -} - -},{}],16:[function(require,module,exports){ -/* - * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE file in the root of the source - * tree. - */ - /* eslint-env node */ -'use strict'; - -var SDPUtils = require('sdp'); - -function fixStatsType(stat) { - return { - inboundrtp: 'inbound-rtp', - outboundrtp: 'outbound-rtp', - candidatepair: 'candidate-pair', - localcandidate: 'local-candidate', - remotecandidate: 'remote-candidate' - }[stat.type] || stat.type; -} - -function writeMediaSection(transceiver, caps, type, stream, dtlsRole) { - var sdp = SDPUtils.writeRtpDescription(transceiver.kind, caps); - - // Map ICE parameters (ufrag, pwd) to SDP. - sdp += SDPUtils.writeIceParameters( - transceiver.iceGatherer.getLocalParameters()); - - // Map DTLS parameters to SDP. - sdp += SDPUtils.writeDtlsParameters( - transceiver.dtlsTransport.getLocalParameters(), - type === 'offer' ? 'actpass' : dtlsRole || 'active'); - - sdp += 'a=mid:' + transceiver.mid + '\r\n'; - - if (transceiver.rtpSender && transceiver.rtpReceiver) { - sdp += 'a=sendrecv\r\n'; - } else if (transceiver.rtpSender) { - sdp += 'a=sendonly\r\n'; - } else if (transceiver.rtpReceiver) { - sdp += 'a=recvonly\r\n'; - } else { - sdp += 'a=inactive\r\n'; - } - - if (transceiver.rtpSender) { - var trackId = transceiver.rtpSender._initialTrackId || - transceiver.rtpSender.track.id; - transceiver.rtpSender._initialTrackId = trackId; - // spec. - var msid = 'msid:' + (stream ? stream.id : '-') + ' ' + - trackId + '\r\n'; - sdp += 'a=' + msid; - // for Chrome. Legacy should no longer be required. - sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc + - ' ' + msid; - - // RTX - if (transceiver.sendEncodingParameters[0].rtx) { - sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc + - ' ' + msid; - sdp += 'a=ssrc-group:FID ' + - transceiver.sendEncodingParameters[0].ssrc + ' ' + - transceiver.sendEncodingParameters[0].rtx.ssrc + - '\r\n'; - } - } - // FIXME: this should be written by writeRtpDescription. - sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc + - ' cname:' + SDPUtils.localCName + '\r\n'; - if (transceiver.rtpSender && transceiver.sendEncodingParameters[0].rtx) { - sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc + - ' cname:' + SDPUtils.localCName + '\r\n'; - } - return sdp; -} - -// Edge does not like -// 1) stun: filtered after 14393 unless ?transport=udp is present -// 2) turn: that does not have all of turn:host:port?transport=udp -// 3) turn: with ipv6 addresses -// 4) turn: occurring muliple times -function filterIceServers(iceServers, edgeVersion) { - var hasTurn = false; - iceServers = JSON.parse(JSON.stringify(iceServers)); - return iceServers.filter(function(server) { - if (server && (server.urls || server.url)) { - var urls = server.urls || server.url; - if (server.url && !server.urls) { - console.warn('RTCIceServer.url is deprecated! Use urls instead.'); - } - var isString = typeof urls === 'string'; - if (isString) { - urls = [urls]; - } - urls = urls.filter(function(url) { - var validTurn = url.indexOf('turn:') === 0 && - url.indexOf('transport=udp') !== -1 && - url.indexOf('turn:[') === -1 && - !hasTurn; - - if (validTurn) { - hasTurn = true; - return true; - } - return url.indexOf('stun:') === 0 && edgeVersion >= 14393 && - url.indexOf('?transport=udp') === -1; - }); - - delete server.url; - server.urls = isString ? urls[0] : urls; - return !!urls.length; - } - }); -} - -// Determines the intersection of local and remote capabilities. -function getCommonCapabilities(localCapabilities, remoteCapabilities) { - var commonCapabilities = { - codecs: [], - headerExtensions: [], - fecMechanisms: [] - }; - - var findCodecByPayloadType = function(pt, codecs) { - pt = parseInt(pt, 10); - for (var i = 0; i < codecs.length; i++) { - if (codecs[i].payloadType === pt || - codecs[i].preferredPayloadType === pt) { - return codecs[i]; - } - } - }; - - var rtxCapabilityMatches = function(lRtx, rRtx, lCodecs, rCodecs) { - var lCodec = findCodecByPayloadType(lRtx.parameters.apt, lCodecs); - var rCodec = findCodecByPayloadType(rRtx.parameters.apt, rCodecs); - return lCodec && rCodec && - lCodec.name.toLowerCase() === rCodec.name.toLowerCase(); - }; - - localCapabilities.codecs.forEach(function(lCodec) { - for (var i = 0; i < remoteCapabilities.codecs.length; i++) { - var rCodec = remoteCapabilities.codecs[i]; - if (lCodec.name.toLowerCase() === rCodec.name.toLowerCase() && - lCodec.clockRate === rCodec.clockRate) { - if (lCodec.name.toLowerCase() === 'rtx' && - lCodec.parameters && rCodec.parameters.apt) { - // for RTX we need to find the local rtx that has a apt - // which points to the same local codec as the remote one. - if (!rtxCapabilityMatches(lCodec, rCodec, - localCapabilities.codecs, remoteCapabilities.codecs)) { - continue; - } - } - rCodec = JSON.parse(JSON.stringify(rCodec)); // deepcopy - // number of channels is the highest common number of channels - rCodec.numChannels = Math.min(lCodec.numChannels, - rCodec.numChannels); - // push rCodec so we reply with offerer payload type - commonCapabilities.codecs.push(rCodec); - - // determine common feedback mechanisms - rCodec.rtcpFeedback = rCodec.rtcpFeedback.filter(function(fb) { - for (var j = 0; j < lCodec.rtcpFeedback.length; j++) { - if (lCodec.rtcpFeedback[j].type === fb.type && - lCodec.rtcpFeedback[j].parameter === fb.parameter) { - return true; - } - } - return false; - }); - // FIXME: also need to determine .parameters - // see https://github.com/openpeer/ortc/issues/569 - break; - } - } - }); - - localCapabilities.headerExtensions.forEach(function(lHeaderExtension) { - for (var i = 0; i < remoteCapabilities.headerExtensions.length; - i++) { - var rHeaderExtension = remoteCapabilities.headerExtensions[i]; - if (lHeaderExtension.uri === rHeaderExtension.uri) { - commonCapabilities.headerExtensions.push(rHeaderExtension); - break; - } - } - }); - - // FIXME: fecMechanisms - return commonCapabilities; -} - -// is action=setLocalDescription with type allowed in signalingState -function isActionAllowedInSignalingState(action, type, signalingState) { - return { - offer: { - setLocalDescription: ['stable', 'have-local-offer'], - setRemoteDescription: ['stable', 'have-remote-offer'] - }, - answer: { - setLocalDescription: ['have-remote-offer', 'have-local-pranswer'], - setRemoteDescription: ['have-local-offer', 'have-remote-pranswer'] - } - }[type][action].indexOf(signalingState) !== -1; -} - -function maybeAddCandidate(iceTransport, candidate) { - // Edge's internal representation adds some fields therefore - // not all fieldŅ• are taken into account. - var alreadyAdded = iceTransport.getRemoteCandidates() - .find(function(remoteCandidate) { - return candidate.foundation === remoteCandidate.foundation && - candidate.ip === remoteCandidate.ip && - candidate.port === remoteCandidate.port && - candidate.priority === remoteCandidate.priority && - candidate.protocol === remoteCandidate.protocol && - candidate.type === remoteCandidate.type; - }); - if (!alreadyAdded) { - iceTransport.addRemoteCandidate(candidate); - } - return !alreadyAdded; -} - - -function makeError(name, description) { - var e = new Error(description); - e.name = name; - // legacy error codes from https://heycam.github.io/webidl/#idl-DOMException-error-names - e.code = { - NotSupportedError: 9, - InvalidStateError: 11, - InvalidAccessError: 15, - TypeError: undefined, - OperationError: undefined - }[name]; - return e; -} - -module.exports = function(window, edgeVersion) { - // https://w3c.github.io/mediacapture-main/#mediastream - // Helper function to add the track to the stream and - // dispatch the event ourselves. - function addTrackToStreamAndFireEvent(track, stream) { - stream.addTrack(track); - stream.dispatchEvent(new window.MediaStreamTrackEvent('addtrack', - {track: track})); - } - - function removeTrackFromStreamAndFireEvent(track, stream) { - stream.removeTrack(track); - stream.dispatchEvent(new window.MediaStreamTrackEvent('removetrack', - {track: track})); - } - - function fireAddTrack(pc, track, receiver, streams) { - var trackEvent = new Event('track'); - trackEvent.track = track; - trackEvent.receiver = receiver; - trackEvent.transceiver = {receiver: receiver}; - trackEvent.streams = streams; - window.setTimeout(function() { - pc._dispatchEvent('track', trackEvent); - }); - } - - var RTCPeerConnection = function(config) { - var pc = this; - - var _eventTarget = document.createDocumentFragment(); - ['addEventListener', 'removeEventListener', 'dispatchEvent'] - .forEach(function(method) { - pc[method] = _eventTarget[method].bind(_eventTarget); - }); - - this.canTrickleIceCandidates = null; - - this.needNegotiation = false; - - this.localStreams = []; - this.remoteStreams = []; - - this._localDescription = null; - this._remoteDescription = null; - - this.signalingState = 'stable'; - this.iceConnectionState = 'new'; - this.connectionState = 'new'; - this.iceGatheringState = 'new'; - - config = JSON.parse(JSON.stringify(config || {})); - - this.usingBundle = config.bundlePolicy === 'max-bundle'; - if (config.rtcpMuxPolicy === 'negotiate') { - throw(makeError('NotSupportedError', - 'rtcpMuxPolicy \'negotiate\' is not supported')); - } else if (!config.rtcpMuxPolicy) { - config.rtcpMuxPolicy = 'require'; - } - - switch (config.iceTransportPolicy) { - case 'all': - case 'relay': - break; - default: - config.iceTransportPolicy = 'all'; - break; - } - - switch (config.bundlePolicy) { - case 'balanced': - case 'max-compat': - case 'max-bundle': - break; - default: - config.bundlePolicy = 'balanced'; - break; - } - - config.iceServers = filterIceServers(config.iceServers || [], edgeVersion); - - this._iceGatherers = []; - if (config.iceCandidatePoolSize) { - for (var i = config.iceCandidatePoolSize; i > 0; i--) { - this._iceGatherers.push(new window.RTCIceGatherer({ - iceServers: config.iceServers, - gatherPolicy: config.iceTransportPolicy - })); - } - } else { - config.iceCandidatePoolSize = 0; - } - - this._config = config; - - // per-track iceGathers, iceTransports, dtlsTransports, rtpSenders, ... - // everything that is needed to describe a SDP m-line. - this.transceivers = []; - - this._sdpSessionId = SDPUtils.generateSessionId(); - this._sdpSessionVersion = 0; - - this._dtlsRole = undefined; // role for a=setup to use in answers. - - this._isClosed = false; - }; - - Object.defineProperty(RTCPeerConnection.prototype, 'localDescription', { - configurable: true, - get: function() { - return this._localDescription; - } - }); - Object.defineProperty(RTCPeerConnection.prototype, 'remoteDescription', { - configurable: true, - get: function() { - return this._remoteDescription; - } - }); - - // set up event handlers on prototype - RTCPeerConnection.prototype.onicecandidate = null; - RTCPeerConnection.prototype.onaddstream = null; - RTCPeerConnection.prototype.ontrack = null; - RTCPeerConnection.prototype.onremovestream = null; - RTCPeerConnection.prototype.onsignalingstatechange = null; - RTCPeerConnection.prototype.oniceconnectionstatechange = null; - RTCPeerConnection.prototype.onconnectionstatechange = null; - RTCPeerConnection.prototype.onicegatheringstatechange = null; - RTCPeerConnection.prototype.onnegotiationneeded = null; - RTCPeerConnection.prototype.ondatachannel = null; - - RTCPeerConnection.prototype._dispatchEvent = function(name, event) { - if (this._isClosed) { - return; - } - this.dispatchEvent(event); - if (typeof this['on' + name] === 'function') { - this['on' + name](event); - } - }; - - RTCPeerConnection.prototype._emitGatheringStateChange = function() { - var event = new Event('icegatheringstatechange'); - this._dispatchEvent('icegatheringstatechange', event); - }; - - RTCPeerConnection.prototype.getConfiguration = function() { - return this._config; - }; - - RTCPeerConnection.prototype.getLocalStreams = function() { - return this.localStreams; - }; - - RTCPeerConnection.prototype.getRemoteStreams = function() { - return this.remoteStreams; - }; - - // internal helper to create a transceiver object. - // (which is not yet the same as the WebRTC 1.0 transceiver) - RTCPeerConnection.prototype._createTransceiver = function(kind, doNotAdd) { - var hasBundleTransport = this.transceivers.length > 0; - var transceiver = { - track: null, - iceGatherer: null, - iceTransport: null, - dtlsTransport: null, - localCapabilities: null, - remoteCapabilities: null, - rtpSender: null, - rtpReceiver: null, - kind: kind, - mid: null, - sendEncodingParameters: null, - recvEncodingParameters: null, - stream: null, - associatedRemoteMediaStreams: [], - wantReceive: true - }; - if (this.usingBundle && hasBundleTransport) { - transceiver.iceTransport = this.transceivers[0].iceTransport; - transceiver.dtlsTransport = this.transceivers[0].dtlsTransport; - } else { - var transports = this._createIceAndDtlsTransports(); - transceiver.iceTransport = transports.iceTransport; - transceiver.dtlsTransport = transports.dtlsTransport; - } - if (!doNotAdd) { - this.transceivers.push(transceiver); - } - return transceiver; - }; - - RTCPeerConnection.prototype.addTrack = function(track, stream) { - if (this._isClosed) { - throw makeError('InvalidStateError', - 'Attempted to call addTrack on a closed peerconnection.'); - } - - var alreadyExists = this.transceivers.find(function(s) { - return s.track === track; - }); - - if (alreadyExists) { - throw makeError('InvalidAccessError', 'Track already exists.'); - } - - var transceiver; - for (var i = 0; i < this.transceivers.length; i++) { - if (!this.transceivers[i].track && - this.transceivers[i].kind === track.kind) { - transceiver = this.transceivers[i]; - } - } - if (!transceiver) { - transceiver = this._createTransceiver(track.kind); - } - - this._maybeFireNegotiationNeeded(); - - if (this.localStreams.indexOf(stream) === -1) { - this.localStreams.push(stream); - } - - transceiver.track = track; - transceiver.stream = stream; - transceiver.rtpSender = new window.RTCRtpSender(track, - transceiver.dtlsTransport); - return transceiver.rtpSender; - }; - - RTCPeerConnection.prototype.addStream = function(stream) { - var pc = this; - if (edgeVersion >= 15025) { - stream.getTracks().forEach(function(track) { - pc.addTrack(track, stream); - }); - } else { - // Clone is necessary for local demos mostly, attaching directly - // to two different senders does not work (build 10547). - // Fixed in 15025 (or earlier) - var clonedStream = stream.clone(); - stream.getTracks().forEach(function(track, idx) { - var clonedTrack = clonedStream.getTracks()[idx]; - track.addEventListener('enabled', function(event) { - clonedTrack.enabled = event.enabled; - }); - }); - clonedStream.getTracks().forEach(function(track) { - pc.addTrack(track, clonedStream); - }); - } - }; - - RTCPeerConnection.prototype.removeTrack = function(sender) { - if (this._isClosed) { - throw makeError('InvalidStateError', - 'Attempted to call removeTrack on a closed peerconnection.'); - } - - if (!(sender instanceof window.RTCRtpSender)) { - throw new TypeError('Argument 1 of RTCPeerConnection.removeTrack ' + - 'does not implement interface RTCRtpSender.'); - } - - var transceiver = this.transceivers.find(function(t) { - return t.rtpSender === sender; - }); - - if (!transceiver) { - throw makeError('InvalidAccessError', - 'Sender was not created by this connection.'); - } - var stream = transceiver.stream; - - transceiver.rtpSender.stop(); - transceiver.rtpSender = null; - transceiver.track = null; - transceiver.stream = null; - - // remove the stream from the set of local streams - var localStreams = this.transceivers.map(function(t) { - return t.stream; - }); - if (localStreams.indexOf(stream) === -1 && - this.localStreams.indexOf(stream) > -1) { - this.localStreams.splice(this.localStreams.indexOf(stream), 1); - } - - this._maybeFireNegotiationNeeded(); - }; - - RTCPeerConnection.prototype.removeStream = function(stream) { - var pc = this; - stream.getTracks().forEach(function(track) { - var sender = pc.getSenders().find(function(s) { - return s.track === track; - }); - if (sender) { - pc.removeTrack(sender); - } - }); - }; - - RTCPeerConnection.prototype.getSenders = function() { - return this.transceivers.filter(function(transceiver) { - return !!transceiver.rtpSender; - }) - .map(function(transceiver) { - return transceiver.rtpSender; - }); - }; - - RTCPeerConnection.prototype.getReceivers = function() { - return this.transceivers.filter(function(transceiver) { - return !!transceiver.rtpReceiver; - }) - .map(function(transceiver) { - return transceiver.rtpReceiver; - }); - }; - - - RTCPeerConnection.prototype._createIceGatherer = function(sdpMLineIndex, - usingBundle) { - var pc = this; - if (usingBundle && sdpMLineIndex > 0) { - return this.transceivers[0].iceGatherer; - } else if (this._iceGatherers.length) { - return this._iceGatherers.shift(); - } - var iceGatherer = new window.RTCIceGatherer({ - iceServers: this._config.iceServers, - gatherPolicy: this._config.iceTransportPolicy - }); - Object.defineProperty(iceGatherer, 'state', - {value: 'new', writable: true} - ); - - this.transceivers[sdpMLineIndex].bufferedCandidateEvents = []; - this.transceivers[sdpMLineIndex].bufferCandidates = function(event) { - var end = !event.candidate || Object.keys(event.candidate).length === 0; - // polyfill since RTCIceGatherer.state is not implemented in - // Edge 10547 yet. - iceGatherer.state = end ? 'completed' : 'gathering'; - if (pc.transceivers[sdpMLineIndex].bufferedCandidateEvents !== null) { - pc.transceivers[sdpMLineIndex].bufferedCandidateEvents.push(event); - } - }; - iceGatherer.addEventListener('localcandidate', - this.transceivers[sdpMLineIndex].bufferCandidates); - return iceGatherer; - }; - - // start gathering from an RTCIceGatherer. - RTCPeerConnection.prototype._gather = function(mid, sdpMLineIndex) { - var pc = this; - var iceGatherer = this.transceivers[sdpMLineIndex].iceGatherer; - if (iceGatherer.onlocalcandidate) { - return; - } - var bufferedCandidateEvents = - this.transceivers[sdpMLineIndex].bufferedCandidateEvents; - this.transceivers[sdpMLineIndex].bufferedCandidateEvents = null; - iceGatherer.removeEventListener('localcandidate', - this.transceivers[sdpMLineIndex].bufferCandidates); - iceGatherer.onlocalcandidate = function(evt) { - if (pc.usingBundle && sdpMLineIndex > 0) { - // if we know that we use bundle we can drop candidates with - // Ņ•dpMLineIndex > 0. If we don't do this then our state gets - // confused since we dispose the extra ice gatherer. - return; - } - var event = new Event('icecandidate'); - event.candidate = {sdpMid: mid, sdpMLineIndex: sdpMLineIndex}; - - var cand = evt.candidate; - // Edge emits an empty object for RTCIceCandidateCompleteâ€Ĩ - var end = !cand || Object.keys(cand).length === 0; - if (end) { - // polyfill since RTCIceGatherer.state is not implemented in - // Edge 10547 yet. - if (iceGatherer.state === 'new' || iceGatherer.state === 'gathering') { - iceGatherer.state = 'completed'; - } - } else { - if (iceGatherer.state === 'new') { - iceGatherer.state = 'gathering'; - } - // RTCIceCandidate doesn't have a component, needs to be added - cand.component = 1; - // also the usernameFragment. TODO: update SDP to take both variants. - cand.ufrag = iceGatherer.getLocalParameters().usernameFragment; - - var serializedCandidate = SDPUtils.writeCandidate(cand); - event.candidate = Object.assign(event.candidate, - SDPUtils.parseCandidate(serializedCandidate)); - - event.candidate.candidate = serializedCandidate; - event.candidate.toJSON = function() { - return { - candidate: event.candidate.candidate, - sdpMid: event.candidate.sdpMid, - sdpMLineIndex: event.candidate.sdpMLineIndex, - usernameFragment: event.candidate.usernameFragment - }; - }; - } - - // update local description. - var sections = SDPUtils.getMediaSections(pc._localDescription.sdp); - if (!end) { - sections[event.candidate.sdpMLineIndex] += - 'a=' + event.candidate.candidate + '\r\n'; - } else { - sections[event.candidate.sdpMLineIndex] += - 'a=end-of-candidates\r\n'; - } - pc._localDescription.sdp = - SDPUtils.getDescription(pc._localDescription.sdp) + - sections.join(''); - var complete = pc.transceivers.every(function(transceiver) { - return transceiver.iceGatherer && - transceiver.iceGatherer.state === 'completed'; - }); - - if (pc.iceGatheringState !== 'gathering') { - pc.iceGatheringState = 'gathering'; - pc._emitGatheringStateChange(); - } - - // Emit candidate. Also emit null candidate when all gatherers are - // complete. - if (!end) { - pc._dispatchEvent('icecandidate', event); - } - if (complete) { - pc._dispatchEvent('icecandidate', new Event('icecandidate')); - pc.iceGatheringState = 'complete'; - pc._emitGatheringStateChange(); - } - }; - - // emit already gathered candidates. - window.setTimeout(function() { - bufferedCandidateEvents.forEach(function(e) { - iceGatherer.onlocalcandidate(e); - }); - }, 0); - }; - - // Create ICE transport and DTLS transport. - RTCPeerConnection.prototype._createIceAndDtlsTransports = function() { - var pc = this; - var iceTransport = new window.RTCIceTransport(null); - iceTransport.onicestatechange = function() { - pc._updateIceConnectionState(); - pc._updateConnectionState(); - }; - - var dtlsTransport = new window.RTCDtlsTransport(iceTransport); - dtlsTransport.ondtlsstatechange = function() { - pc._updateConnectionState(); - }; - dtlsTransport.onerror = function() { - // onerror does not set state to failed by itself. - Object.defineProperty(dtlsTransport, 'state', - {value: 'failed', writable: true}); - pc._updateConnectionState(); - }; - - return { - iceTransport: iceTransport, - dtlsTransport: dtlsTransport - }; - }; - - // Destroy ICE gatherer, ICE transport and DTLS transport. - // Without triggering the callbacks. - RTCPeerConnection.prototype._disposeIceAndDtlsTransports = function( - sdpMLineIndex) { - var iceGatherer = this.transceivers[sdpMLineIndex].iceGatherer; - if (iceGatherer) { - delete iceGatherer.onlocalcandidate; - delete this.transceivers[sdpMLineIndex].iceGatherer; - } - var iceTransport = this.transceivers[sdpMLineIndex].iceTransport; - if (iceTransport) { - delete iceTransport.onicestatechange; - delete this.transceivers[sdpMLineIndex].iceTransport; - } - var dtlsTransport = this.transceivers[sdpMLineIndex].dtlsTransport; - if (dtlsTransport) { - delete dtlsTransport.ondtlsstatechange; - delete dtlsTransport.onerror; - delete this.transceivers[sdpMLineIndex].dtlsTransport; - } - }; - - // Start the RTP Sender and Receiver for a transceiver. - RTCPeerConnection.prototype._transceive = function(transceiver, - send, recv) { - var params = getCommonCapabilities(transceiver.localCapabilities, - transceiver.remoteCapabilities); - if (send && transceiver.rtpSender) { - params.encodings = transceiver.sendEncodingParameters; - params.rtcp = { - cname: SDPUtils.localCName, - compound: transceiver.rtcpParameters.compound - }; - if (transceiver.recvEncodingParameters.length) { - params.rtcp.ssrc = transceiver.recvEncodingParameters[0].ssrc; - } - transceiver.rtpSender.send(params); - } - if (recv && transceiver.rtpReceiver && params.codecs.length > 0) { - // remove RTX field in Edge 14942 - if (transceiver.kind === 'video' - && transceiver.recvEncodingParameters - && edgeVersion < 15019) { - transceiver.recvEncodingParameters.forEach(function(p) { - delete p.rtx; - }); - } - if (transceiver.recvEncodingParameters.length) { - params.encodings = transceiver.recvEncodingParameters; - } else { - params.encodings = [{}]; - } - params.rtcp = { - compound: transceiver.rtcpParameters.compound - }; - if (transceiver.rtcpParameters.cname) { - params.rtcp.cname = transceiver.rtcpParameters.cname; - } - if (transceiver.sendEncodingParameters.length) { - params.rtcp.ssrc = transceiver.sendEncodingParameters[0].ssrc; - } - transceiver.rtpReceiver.receive(params); - } - }; - - RTCPeerConnection.prototype.setLocalDescription = function(description) { - var pc = this; - - // Note: pranswer is not supported. - if (['offer', 'answer'].indexOf(description.type) === -1) { - return Promise.reject(makeError('TypeError', - 'Unsupported type "' + description.type + '"')); - } - - if (!isActionAllowedInSignalingState('setLocalDescription', - description.type, pc.signalingState) || pc._isClosed) { - return Promise.reject(makeError('InvalidStateError', - 'Can not set local ' + description.type + - ' in state ' + pc.signalingState)); - } - - var sections; - var sessionpart; - if (description.type === 'offer') { - // VERY limited support for SDP munging. Limited to: - // * changing the order of codecs - sections = SDPUtils.splitSections(description.sdp); - sessionpart = sections.shift(); - sections.forEach(function(mediaSection, sdpMLineIndex) { - var caps = SDPUtils.parseRtpParameters(mediaSection); - pc.transceivers[sdpMLineIndex].localCapabilities = caps; - }); - - pc.transceivers.forEach(function(transceiver, sdpMLineIndex) { - pc._gather(transceiver.mid, sdpMLineIndex); - }); - } else if (description.type === 'answer') { - sections = SDPUtils.splitSections(pc._remoteDescription.sdp); - sessionpart = sections.shift(); - var isIceLite = SDPUtils.matchPrefix(sessionpart, - 'a=ice-lite').length > 0; - sections.forEach(function(mediaSection, sdpMLineIndex) { - var transceiver = pc.transceivers[sdpMLineIndex]; - var iceGatherer = transceiver.iceGatherer; - var iceTransport = transceiver.iceTransport; - var dtlsTransport = transceiver.dtlsTransport; - var localCapabilities = transceiver.localCapabilities; - var remoteCapabilities = transceiver.remoteCapabilities; - - // treat bundle-only as not-rejected. - var rejected = SDPUtils.isRejected(mediaSection) && - SDPUtils.matchPrefix(mediaSection, 'a=bundle-only').length === 0; - - if (!rejected && !transceiver.rejected) { - var remoteIceParameters = SDPUtils.getIceParameters( - mediaSection, sessionpart); - var remoteDtlsParameters = SDPUtils.getDtlsParameters( - mediaSection, sessionpart); - if (isIceLite) { - remoteDtlsParameters.role = 'server'; - } - - if (!pc.usingBundle || sdpMLineIndex === 0) { - pc._gather(transceiver.mid, sdpMLineIndex); - if (iceTransport.state === 'new') { - iceTransport.start(iceGatherer, remoteIceParameters, - isIceLite ? 'controlling' : 'controlled'); - } - if (dtlsTransport.state === 'new') { - dtlsTransport.start(remoteDtlsParameters); - } - } - - // Calculate intersection of capabilities. - var params = getCommonCapabilities(localCapabilities, - remoteCapabilities); - - // Start the RTCRtpSender. The RTCRtpReceiver for this - // transceiver has already been started in setRemoteDescription. - pc._transceive(transceiver, - params.codecs.length > 0, - false); - } - }); - } - - pc._localDescription = { - type: description.type, - sdp: description.sdp - }; - if (description.type === 'offer') { - pc._updateSignalingState('have-local-offer'); - } else { - pc._updateSignalingState('stable'); - } - - return Promise.resolve(); - }; - - RTCPeerConnection.prototype.setRemoteDescription = function(description) { - var pc = this; - - // Note: pranswer is not supported. - if (['offer', 'answer'].indexOf(description.type) === -1) { - return Promise.reject(makeError('TypeError', - 'Unsupported type "' + description.type + '"')); - } - - if (!isActionAllowedInSignalingState('setRemoteDescription', - description.type, pc.signalingState) || pc._isClosed) { - return Promise.reject(makeError('InvalidStateError', - 'Can not set remote ' + description.type + - ' in state ' + pc.signalingState)); - } - - var streams = {}; - pc.remoteStreams.forEach(function(stream) { - streams[stream.id] = stream; - }); - var receiverList = []; - var sections = SDPUtils.splitSections(description.sdp); - var sessionpart = sections.shift(); - var isIceLite = SDPUtils.matchPrefix(sessionpart, - 'a=ice-lite').length > 0; - var usingBundle = SDPUtils.matchPrefix(sessionpart, - 'a=group:BUNDLE ').length > 0; - pc.usingBundle = usingBundle; - var iceOptions = SDPUtils.matchPrefix(sessionpart, - 'a=ice-options:')[0]; - if (iceOptions) { - pc.canTrickleIceCandidates = iceOptions.substr(14).split(' ') - .indexOf('trickle') >= 0; - } else { - pc.canTrickleIceCandidates = false; - } - - sections.forEach(function(mediaSection, sdpMLineIndex) { - var lines = SDPUtils.splitLines(mediaSection); - var kind = SDPUtils.getKind(mediaSection); - // treat bundle-only as not-rejected. - var rejected = SDPUtils.isRejected(mediaSection) && - SDPUtils.matchPrefix(mediaSection, 'a=bundle-only').length === 0; - var protocol = lines[0].substr(2).split(' ')[2]; - - var direction = SDPUtils.getDirection(mediaSection, sessionpart); - var remoteMsid = SDPUtils.parseMsid(mediaSection); - - var mid = SDPUtils.getMid(mediaSection) || SDPUtils.generateIdentifier(); - - // Reject datachannels which are not implemented yet. - if (rejected || (kind === 'application' && (protocol === 'DTLS/SCTP' || - protocol === 'UDP/DTLS/SCTP'))) { - // TODO: this is dangerous in the case where a non-rejected m-line - // becomes rejected. - pc.transceivers[sdpMLineIndex] = { - mid: mid, - kind: kind, - protocol: protocol, - rejected: true - }; - return; - } - - if (!rejected && pc.transceivers[sdpMLineIndex] && - pc.transceivers[sdpMLineIndex].rejected) { - // recycle a rejected transceiver. - pc.transceivers[sdpMLineIndex] = pc._createTransceiver(kind, true); - } - - var transceiver; - var iceGatherer; - var iceTransport; - var dtlsTransport; - var rtpReceiver; - var sendEncodingParameters; - var recvEncodingParameters; - var localCapabilities; - - var track; - // FIXME: ensure the mediaSection has rtcp-mux set. - var remoteCapabilities = SDPUtils.parseRtpParameters(mediaSection); - var remoteIceParameters; - var remoteDtlsParameters; - if (!rejected) { - remoteIceParameters = SDPUtils.getIceParameters(mediaSection, - sessionpart); - remoteDtlsParameters = SDPUtils.getDtlsParameters(mediaSection, - sessionpart); - remoteDtlsParameters.role = 'client'; - } - recvEncodingParameters = - SDPUtils.parseRtpEncodingParameters(mediaSection); - - var rtcpParameters = SDPUtils.parseRtcpParameters(mediaSection); - - var isComplete = SDPUtils.matchPrefix(mediaSection, - 'a=end-of-candidates', sessionpart).length > 0; - var cands = SDPUtils.matchPrefix(mediaSection, 'a=candidate:') - .map(function(cand) { - return SDPUtils.parseCandidate(cand); - }) - .filter(function(cand) { - return cand.component === 1; - }); - - // Check if we can use BUNDLE and dispose transports. - if ((description.type === 'offer' || description.type === 'answer') && - !rejected && usingBundle && sdpMLineIndex > 0 && - pc.transceivers[sdpMLineIndex]) { - pc._disposeIceAndDtlsTransports(sdpMLineIndex); - pc.transceivers[sdpMLineIndex].iceGatherer = - pc.transceivers[0].iceGatherer; - pc.transceivers[sdpMLineIndex].iceTransport = - pc.transceivers[0].iceTransport; - pc.transceivers[sdpMLineIndex].dtlsTransport = - pc.transceivers[0].dtlsTransport; - if (pc.transceivers[sdpMLineIndex].rtpSender) { - pc.transceivers[sdpMLineIndex].rtpSender.setTransport( - pc.transceivers[0].dtlsTransport); - } - if (pc.transceivers[sdpMLineIndex].rtpReceiver) { - pc.transceivers[sdpMLineIndex].rtpReceiver.setTransport( - pc.transceivers[0].dtlsTransport); - } - } - if (description.type === 'offer' && !rejected) { - transceiver = pc.transceivers[sdpMLineIndex] || - pc._createTransceiver(kind); - transceiver.mid = mid; - - if (!transceiver.iceGatherer) { - transceiver.iceGatherer = pc._createIceGatherer(sdpMLineIndex, - usingBundle); - } - - if (cands.length && transceiver.iceTransport.state === 'new') { - if (isComplete && (!usingBundle || sdpMLineIndex === 0)) { - transceiver.iceTransport.setRemoteCandidates(cands); - } else { - cands.forEach(function(candidate) { - maybeAddCandidate(transceiver.iceTransport, candidate); - }); - } - } - - localCapabilities = window.RTCRtpReceiver.getCapabilities(kind); - - // filter RTX until additional stuff needed for RTX is implemented - // in adapter.js - if (edgeVersion < 15019) { - localCapabilities.codecs = localCapabilities.codecs.filter( - function(codec) { - return codec.name !== 'rtx'; - }); - } - - sendEncodingParameters = transceiver.sendEncodingParameters || [{ - ssrc: (2 * sdpMLineIndex + 2) * 1001 - }]; - - // TODO: rewrite to use http://w3c.github.io/webrtc-pc/#set-associated-remote-streams - var isNewTrack = false; - if (direction === 'sendrecv' || direction === 'sendonly') { - isNewTrack = !transceiver.rtpReceiver; - rtpReceiver = transceiver.rtpReceiver || - new window.RTCRtpReceiver(transceiver.dtlsTransport, kind); - - if (isNewTrack) { - var stream; - track = rtpReceiver.track; - // FIXME: does not work with Plan B. - if (remoteMsid && remoteMsid.stream === '-') { - // no-op. a stream id of '-' means: no associated stream. - } else if (remoteMsid) { - if (!streams[remoteMsid.stream]) { - streams[remoteMsid.stream] = new window.MediaStream(); - Object.defineProperty(streams[remoteMsid.stream], 'id', { - get: function() { - return remoteMsid.stream; - } - }); - } - Object.defineProperty(track, 'id', { - get: function() { - return remoteMsid.track; - } - }); - stream = streams[remoteMsid.stream]; - } else { - if (!streams.default) { - streams.default = new window.MediaStream(); - } - stream = streams.default; - } - if (stream) { - addTrackToStreamAndFireEvent(track, stream); - transceiver.associatedRemoteMediaStreams.push(stream); - } - receiverList.push([track, rtpReceiver, stream]); - } - } else if (transceiver.rtpReceiver && transceiver.rtpReceiver.track) { - transceiver.associatedRemoteMediaStreams.forEach(function(s) { - var nativeTrack = s.getTracks().find(function(t) { - return t.id === transceiver.rtpReceiver.track.id; - }); - if (nativeTrack) { - removeTrackFromStreamAndFireEvent(nativeTrack, s); - } - }); - transceiver.associatedRemoteMediaStreams = []; - } - - transceiver.localCapabilities = localCapabilities; - transceiver.remoteCapabilities = remoteCapabilities; - transceiver.rtpReceiver = rtpReceiver; - transceiver.rtcpParameters = rtcpParameters; - transceiver.sendEncodingParameters = sendEncodingParameters; - transceiver.recvEncodingParameters = recvEncodingParameters; - - // Start the RTCRtpReceiver now. The RTPSender is started in - // setLocalDescription. - pc._transceive(pc.transceivers[sdpMLineIndex], - false, - isNewTrack); - } else if (description.type === 'answer' && !rejected) { - transceiver = pc.transceivers[sdpMLineIndex]; - iceGatherer = transceiver.iceGatherer; - iceTransport = transceiver.iceTransport; - dtlsTransport = transceiver.dtlsTransport; - rtpReceiver = transceiver.rtpReceiver; - sendEncodingParameters = transceiver.sendEncodingParameters; - localCapabilities = transceiver.localCapabilities; - - pc.transceivers[sdpMLineIndex].recvEncodingParameters = - recvEncodingParameters; - pc.transceivers[sdpMLineIndex].remoteCapabilities = - remoteCapabilities; - pc.transceivers[sdpMLineIndex].rtcpParameters = rtcpParameters; - - if (cands.length && iceTransport.state === 'new') { - if ((isIceLite || isComplete) && - (!usingBundle || sdpMLineIndex === 0)) { - iceTransport.setRemoteCandidates(cands); - } else { - cands.forEach(function(candidate) { - maybeAddCandidate(transceiver.iceTransport, candidate); - }); - } - } - - if (!usingBundle || sdpMLineIndex === 0) { - if (iceTransport.state === 'new') { - iceTransport.start(iceGatherer, remoteIceParameters, - 'controlling'); - } - if (dtlsTransport.state === 'new') { - dtlsTransport.start(remoteDtlsParameters); - } - } - - // If the offer contained RTX but the answer did not, - // remove RTX from sendEncodingParameters. - var commonCapabilities = getCommonCapabilities( - transceiver.localCapabilities, - transceiver.remoteCapabilities); - - var hasRtx = commonCapabilities.codecs.filter(function(c) { - return c.name.toLowerCase() === 'rtx'; - }).length; - if (!hasRtx && transceiver.sendEncodingParameters[0].rtx) { - delete transceiver.sendEncodingParameters[0].rtx; - } - - pc._transceive(transceiver, - direction === 'sendrecv' || direction === 'recvonly', - direction === 'sendrecv' || direction === 'sendonly'); - - // TODO: rewrite to use http://w3c.github.io/webrtc-pc/#set-associated-remote-streams - if (rtpReceiver && - (direction === 'sendrecv' || direction === 'sendonly')) { - track = rtpReceiver.track; - if (remoteMsid) { - if (!streams[remoteMsid.stream]) { - streams[remoteMsid.stream] = new window.MediaStream(); - } - addTrackToStreamAndFireEvent(track, streams[remoteMsid.stream]); - receiverList.push([track, rtpReceiver, streams[remoteMsid.stream]]); - } else { - if (!streams.default) { - streams.default = new window.MediaStream(); - } - addTrackToStreamAndFireEvent(track, streams.default); - receiverList.push([track, rtpReceiver, streams.default]); - } - } else { - // FIXME: actually the receiver should be created later. - delete transceiver.rtpReceiver; - } - } - }); - - if (pc._dtlsRole === undefined) { - pc._dtlsRole = description.type === 'offer' ? 'active' : 'passive'; - } - - pc._remoteDescription = { - type: description.type, - sdp: description.sdp - }; - if (description.type === 'offer') { - pc._updateSignalingState('have-remote-offer'); - } else { - pc._updateSignalingState('stable'); - } - Object.keys(streams).forEach(function(sid) { - var stream = streams[sid]; - if (stream.getTracks().length) { - if (pc.remoteStreams.indexOf(stream) === -1) { - pc.remoteStreams.push(stream); - var event = new Event('addstream'); - event.stream = stream; - window.setTimeout(function() { - pc._dispatchEvent('addstream', event); - }); - } - - receiverList.forEach(function(item) { - var track = item[0]; - var receiver = item[1]; - if (stream.id !== item[2].id) { - return; - } - fireAddTrack(pc, track, receiver, [stream]); - }); - } - }); - receiverList.forEach(function(item) { - if (item[2]) { - return; - } - fireAddTrack(pc, item[0], item[1], []); - }); - - // check whether addIceCandidate({}) was called within four seconds after - // setRemoteDescription. - window.setTimeout(function() { - if (!(pc && pc.transceivers)) { - return; - } - pc.transceivers.forEach(function(transceiver) { - if (transceiver.iceTransport && - transceiver.iceTransport.state === 'new' && - transceiver.iceTransport.getRemoteCandidates().length > 0) { - console.warn('Timeout for addRemoteCandidate. Consider sending ' + - 'an end-of-candidates notification'); - transceiver.iceTransport.addRemoteCandidate({}); - } - }); - }, 4000); - - return Promise.resolve(); - }; - - RTCPeerConnection.prototype.close = function() { - this.transceivers.forEach(function(transceiver) { - /* not yet - if (transceiver.iceGatherer) { - transceiver.iceGatherer.close(); - } - */ - if (transceiver.iceTransport) { - transceiver.iceTransport.stop(); - } - if (transceiver.dtlsTransport) { - transceiver.dtlsTransport.stop(); - } - if (transceiver.rtpSender) { - transceiver.rtpSender.stop(); - } - if (transceiver.rtpReceiver) { - transceiver.rtpReceiver.stop(); - } - }); - // FIXME: clean up tracks, local streams, remote streams, etc - this._isClosed = true; - this._updateSignalingState('closed'); - }; - - // Update the signaling state. - RTCPeerConnection.prototype._updateSignalingState = function(newState) { - this.signalingState = newState; - var event = new Event('signalingstatechange'); - this._dispatchEvent('signalingstatechange', event); - }; - - // Determine whether to fire the negotiationneeded event. - RTCPeerConnection.prototype._maybeFireNegotiationNeeded = function() { - var pc = this; - if (this.signalingState !== 'stable' || this.needNegotiation === true) { - return; - } - this.needNegotiation = true; - window.setTimeout(function() { - if (pc.needNegotiation) { - pc.needNegotiation = false; - var event = new Event('negotiationneeded'); - pc._dispatchEvent('negotiationneeded', event); - } - }, 0); - }; - - // Update the ice connection state. - RTCPeerConnection.prototype._updateIceConnectionState = function() { - var newState; - var states = { - 'new': 0, - closed: 0, - checking: 0, - connected: 0, - completed: 0, - disconnected: 0, - failed: 0 - }; - this.transceivers.forEach(function(transceiver) { - if (transceiver.iceTransport && !transceiver.rejected) { - states[transceiver.iceTransport.state]++; - } - }); - - newState = 'new'; - if (states.failed > 0) { - newState = 'failed'; - } else if (states.checking > 0) { - newState = 'checking'; - } else if (states.disconnected > 0) { - newState = 'disconnected'; - } else if (states.new > 0) { - newState = 'new'; - } else if (states.connected > 0) { - newState = 'connected'; - } else if (states.completed > 0) { - newState = 'completed'; - } - - if (newState !== this.iceConnectionState) { - this.iceConnectionState = newState; - var event = new Event('iceconnectionstatechange'); - this._dispatchEvent('iceconnectionstatechange', event); - } - }; - - // Update the connection state. - RTCPeerConnection.prototype._updateConnectionState = function() { - var newState; - var states = { - 'new': 0, - closed: 0, - connecting: 0, - connected: 0, - completed: 0, - disconnected: 0, - failed: 0 - }; - this.transceivers.forEach(function(transceiver) { - if (transceiver.iceTransport && transceiver.dtlsTransport && - !transceiver.rejected) { - states[transceiver.iceTransport.state]++; - states[transceiver.dtlsTransport.state]++; - } - }); - // ICETransport.completed and connected are the same for this purpose. - states.connected += states.completed; - - newState = 'new'; - if (states.failed > 0) { - newState = 'failed'; - } else if (states.connecting > 0) { - newState = 'connecting'; - } else if (states.disconnected > 0) { - newState = 'disconnected'; - } else if (states.new > 0) { - newState = 'new'; - } else if (states.connected > 0) { - newState = 'connected'; - } - - if (newState !== this.connectionState) { - this.connectionState = newState; - var event = new Event('connectionstatechange'); - this._dispatchEvent('connectionstatechange', event); - } - }; - - RTCPeerConnection.prototype.createOffer = function() { - var pc = this; - - if (pc._isClosed) { - return Promise.reject(makeError('InvalidStateError', - 'Can not call createOffer after close')); - } - - var numAudioTracks = pc.transceivers.filter(function(t) { - return t.kind === 'audio'; - }).length; - var numVideoTracks = pc.transceivers.filter(function(t) { - return t.kind === 'video'; - }).length; - - // Determine number of audio and video tracks we need to send/recv. - var offerOptions = arguments[0]; - if (offerOptions) { - // Reject Chrome legacy constraints. - if (offerOptions.mandatory || offerOptions.optional) { - throw new TypeError( - 'Legacy mandatory/optional constraints not supported.'); - } - if (offerOptions.offerToReceiveAudio !== undefined) { - if (offerOptions.offerToReceiveAudio === true) { - numAudioTracks = 1; - } else if (offerOptions.offerToReceiveAudio === false) { - numAudioTracks = 0; - } else { - numAudioTracks = offerOptions.offerToReceiveAudio; - } - } - if (offerOptions.offerToReceiveVideo !== undefined) { - if (offerOptions.offerToReceiveVideo === true) { - numVideoTracks = 1; - } else if (offerOptions.offerToReceiveVideo === false) { - numVideoTracks = 0; - } else { - numVideoTracks = offerOptions.offerToReceiveVideo; - } - } - } - - pc.transceivers.forEach(function(transceiver) { - if (transceiver.kind === 'audio') { - numAudioTracks--; - if (numAudioTracks < 0) { - transceiver.wantReceive = false; - } - } else if (transceiver.kind === 'video') { - numVideoTracks--; - if (numVideoTracks < 0) { - transceiver.wantReceive = false; - } - } - }); - - // Create M-lines for recvonly streams. - while (numAudioTracks > 0 || numVideoTracks > 0) { - if (numAudioTracks > 0) { - pc._createTransceiver('audio'); - numAudioTracks--; - } - if (numVideoTracks > 0) { - pc._createTransceiver('video'); - numVideoTracks--; - } - } - - var sdp = SDPUtils.writeSessionBoilerplate(pc._sdpSessionId, - pc._sdpSessionVersion++); - pc.transceivers.forEach(function(transceiver, sdpMLineIndex) { - // For each track, create an ice gatherer, ice transport, - // dtls transport, potentially rtpsender and rtpreceiver. - var track = transceiver.track; - var kind = transceiver.kind; - var mid = transceiver.mid || SDPUtils.generateIdentifier(); - transceiver.mid = mid; - - if (!transceiver.iceGatherer) { - transceiver.iceGatherer = pc._createIceGatherer(sdpMLineIndex, - pc.usingBundle); - } - - var localCapabilities = window.RTCRtpSender.getCapabilities(kind); - // filter RTX until additional stuff needed for RTX is implemented - // in adapter.js - if (edgeVersion < 15019) { - localCapabilities.codecs = localCapabilities.codecs.filter( - function(codec) { - return codec.name !== 'rtx'; - }); - } - localCapabilities.codecs.forEach(function(codec) { - // work around https://bugs.chromium.org/p/webrtc/issues/detail?id=6552 - // by adding level-asymmetry-allowed=1 - if (codec.name === 'H264' && - codec.parameters['level-asymmetry-allowed'] === undefined) { - codec.parameters['level-asymmetry-allowed'] = '1'; - } - - // for subsequent offers, we might have to re-use the payload - // type of the last offer. - if (transceiver.remoteCapabilities && - transceiver.remoteCapabilities.codecs) { - transceiver.remoteCapabilities.codecs.forEach(function(remoteCodec) { - if (codec.name.toLowerCase() === remoteCodec.name.toLowerCase() && - codec.clockRate === remoteCodec.clockRate) { - codec.preferredPayloadType = remoteCodec.payloadType; - } - }); - } - }); - localCapabilities.headerExtensions.forEach(function(hdrExt) { - var remoteExtensions = transceiver.remoteCapabilities && - transceiver.remoteCapabilities.headerExtensions || []; - remoteExtensions.forEach(function(rHdrExt) { - if (hdrExt.uri === rHdrExt.uri) { - hdrExt.id = rHdrExt.id; - } - }); - }); - - // generate an ssrc now, to be used later in rtpSender.send - var sendEncodingParameters = transceiver.sendEncodingParameters || [{ - ssrc: (2 * sdpMLineIndex + 1) * 1001 - }]; - if (track) { - // add RTX - if (edgeVersion >= 15019 && kind === 'video' && - !sendEncodingParameters[0].rtx) { - sendEncodingParameters[0].rtx = { - ssrc: sendEncodingParameters[0].ssrc + 1 - }; - } - } - - if (transceiver.wantReceive) { - transceiver.rtpReceiver = new window.RTCRtpReceiver( - transceiver.dtlsTransport, kind); - } - - transceiver.localCapabilities = localCapabilities; - transceiver.sendEncodingParameters = sendEncodingParameters; - }); - - // always offer BUNDLE and dispose on return if not supported. - if (pc._config.bundlePolicy !== 'max-compat') { - sdp += 'a=group:BUNDLE ' + pc.transceivers.map(function(t) { - return t.mid; - }).join(' ') + '\r\n'; - } - sdp += 'a=ice-options:trickle\r\n'; - - pc.transceivers.forEach(function(transceiver, sdpMLineIndex) { - sdp += writeMediaSection(transceiver, transceiver.localCapabilities, - 'offer', transceiver.stream, pc._dtlsRole); - sdp += 'a=rtcp-rsize\r\n'; - - if (transceiver.iceGatherer && pc.iceGatheringState !== 'new' && - (sdpMLineIndex === 0 || !pc.usingBundle)) { - transceiver.iceGatherer.getLocalCandidates().forEach(function(cand) { - cand.component = 1; - sdp += 'a=' + SDPUtils.writeCandidate(cand) + '\r\n'; - }); - - if (transceiver.iceGatherer.state === 'completed') { - sdp += 'a=end-of-candidates\r\n'; - } - } - }); - - var desc = new window.RTCSessionDescription({ - type: 'offer', - sdp: sdp - }); - return Promise.resolve(desc); - }; - - RTCPeerConnection.prototype.createAnswer = function() { - var pc = this; - - if (pc._isClosed) { - return Promise.reject(makeError('InvalidStateError', - 'Can not call createAnswer after close')); - } - - if (!(pc.signalingState === 'have-remote-offer' || - pc.signalingState === 'have-local-pranswer')) { - return Promise.reject(makeError('InvalidStateError', - 'Can not call createAnswer in signalingState ' + pc.signalingState)); - } - - var sdp = SDPUtils.writeSessionBoilerplate(pc._sdpSessionId, - pc._sdpSessionVersion++); - if (pc.usingBundle) { - sdp += 'a=group:BUNDLE ' + pc.transceivers.map(function(t) { - return t.mid; - }).join(' ') + '\r\n'; - } - sdp += 'a=ice-options:trickle\r\n'; - - var mediaSectionsInOffer = SDPUtils.getMediaSections( - pc._remoteDescription.sdp).length; - pc.transceivers.forEach(function(transceiver, sdpMLineIndex) { - if (sdpMLineIndex + 1 > mediaSectionsInOffer) { - return; - } - if (transceiver.rejected) { - if (transceiver.kind === 'application') { - if (transceiver.protocol === 'DTLS/SCTP') { // legacy fmt - sdp += 'm=application 0 DTLS/SCTP 5000\r\n'; - } else { - sdp += 'm=application 0 ' + transceiver.protocol + - ' webrtc-datachannel\r\n'; - } - } else if (transceiver.kind === 'audio') { - sdp += 'm=audio 0 UDP/TLS/RTP/SAVPF 0\r\n' + - 'a=rtpmap:0 PCMU/8000\r\n'; - } else if (transceiver.kind === 'video') { - sdp += 'm=video 0 UDP/TLS/RTP/SAVPF 120\r\n' + - 'a=rtpmap:120 VP8/90000\r\n'; - } - sdp += 'c=IN IP4 0.0.0.0\r\n' + - 'a=inactive\r\n' + - 'a=mid:' + transceiver.mid + '\r\n'; - return; - } - - // FIXME: look at direction. - if (transceiver.stream) { - var localTrack; - if (transceiver.kind === 'audio') { - localTrack = transceiver.stream.getAudioTracks()[0]; - } else if (transceiver.kind === 'video') { - localTrack = transceiver.stream.getVideoTracks()[0]; - } - if (localTrack) { - // add RTX - if (edgeVersion >= 15019 && transceiver.kind === 'video' && - !transceiver.sendEncodingParameters[0].rtx) { - transceiver.sendEncodingParameters[0].rtx = { - ssrc: transceiver.sendEncodingParameters[0].ssrc + 1 - }; - } - } - } - - // Calculate intersection of capabilities. - var commonCapabilities = getCommonCapabilities( - transceiver.localCapabilities, - transceiver.remoteCapabilities); - - var hasRtx = commonCapabilities.codecs.filter(function(c) { - return c.name.toLowerCase() === 'rtx'; - }).length; - if (!hasRtx && transceiver.sendEncodingParameters[0].rtx) { - delete transceiver.sendEncodingParameters[0].rtx; - } - - sdp += writeMediaSection(transceiver, commonCapabilities, - 'answer', transceiver.stream, pc._dtlsRole); - if (transceiver.rtcpParameters && - transceiver.rtcpParameters.reducedSize) { - sdp += 'a=rtcp-rsize\r\n'; - } - }); - - var desc = new window.RTCSessionDescription({ - type: 'answer', - sdp: sdp - }); - return Promise.resolve(desc); - }; - - RTCPeerConnection.prototype.addIceCandidate = function(candidate) { - var pc = this; - var sections; - if (candidate && !(candidate.sdpMLineIndex !== undefined || - candidate.sdpMid)) { - return Promise.reject(new TypeError('sdpMLineIndex or sdpMid required')); - } - - // TODO: needs to go into ops queue. - return new Promise(function(resolve, reject) { - if (!pc._remoteDescription) { - return reject(makeError('InvalidStateError', - 'Can not add ICE candidate without a remote description')); - } else if (!candidate || candidate.candidate === '') { - for (var j = 0; j < pc.transceivers.length; j++) { - if (pc.transceivers[j].rejected) { - continue; - } - pc.transceivers[j].iceTransport.addRemoteCandidate({}); - sections = SDPUtils.getMediaSections(pc._remoteDescription.sdp); - sections[j] += 'a=end-of-candidates\r\n'; - pc._remoteDescription.sdp = - SDPUtils.getDescription(pc._remoteDescription.sdp) + - sections.join(''); - if (pc.usingBundle) { - break; - } - } - } else { - var sdpMLineIndex = candidate.sdpMLineIndex; - if (candidate.sdpMid) { - for (var i = 0; i < pc.transceivers.length; i++) { - if (pc.transceivers[i].mid === candidate.sdpMid) { - sdpMLineIndex = i; - break; - } - } - } - var transceiver = pc.transceivers[sdpMLineIndex]; - if (transceiver) { - if (transceiver.rejected) { - return resolve(); - } - var cand = Object.keys(candidate.candidate).length > 0 ? - SDPUtils.parseCandidate(candidate.candidate) : {}; - // Ignore Chrome's invalid candidates since Edge does not like them. - if (cand.protocol === 'tcp' && (cand.port === 0 || cand.port === 9)) { - return resolve(); - } - // Ignore RTCP candidates, we assume RTCP-MUX. - if (cand.component && cand.component !== 1) { - return resolve(); - } - // when using bundle, avoid adding candidates to the wrong - // ice transport. And avoid adding candidates added in the SDP. - if (sdpMLineIndex === 0 || (sdpMLineIndex > 0 && - transceiver.iceTransport !== pc.transceivers[0].iceTransport)) { - if (!maybeAddCandidate(transceiver.iceTransport, cand)) { - return reject(makeError('OperationError', - 'Can not add ICE candidate')); - } - } - - // update the remoteDescription. - var candidateString = candidate.candidate.trim(); - if (candidateString.indexOf('a=') === 0) { - candidateString = candidateString.substr(2); - } - sections = SDPUtils.getMediaSections(pc._remoteDescription.sdp); - sections[sdpMLineIndex] += 'a=' + - (cand.type ? candidateString : 'end-of-candidates') - + '\r\n'; - pc._remoteDescription.sdp = - SDPUtils.getDescription(pc._remoteDescription.sdp) + - sections.join(''); - } else { - return reject(makeError('OperationError', - 'Can not add ICE candidate')); - } - } - resolve(); - }); - }; - - RTCPeerConnection.prototype.getStats = function(selector) { - if (selector && selector instanceof window.MediaStreamTrack) { - var senderOrReceiver = null; - this.transceivers.forEach(function(transceiver) { - if (transceiver.rtpSender && - transceiver.rtpSender.track === selector) { - senderOrReceiver = transceiver.rtpSender; - } else if (transceiver.rtpReceiver && - transceiver.rtpReceiver.track === selector) { - senderOrReceiver = transceiver.rtpReceiver; - } - }); - if (!senderOrReceiver) { - throw makeError('InvalidAccessError', 'Invalid selector.'); - } - return senderOrReceiver.getStats(); - } - - var promises = []; - this.transceivers.forEach(function(transceiver) { - ['rtpSender', 'rtpReceiver', 'iceGatherer', 'iceTransport', - 'dtlsTransport'].forEach(function(method) { - if (transceiver[method]) { - promises.push(transceiver[method].getStats()); - } - }); - }); - return Promise.all(promises).then(function(allStats) { - var results = new Map(); - allStats.forEach(function(stats) { - stats.forEach(function(stat) { - results.set(stat.id, stat); - }); - }); - return results; - }); - }; - - // fix low-level stat names and return Map instead of object. - var ortcObjects = ['RTCRtpSender', 'RTCRtpReceiver', 'RTCIceGatherer', - 'RTCIceTransport', 'RTCDtlsTransport']; - ortcObjects.forEach(function(ortcObjectName) { - var obj = window[ortcObjectName]; - if (obj && obj.prototype && obj.prototype.getStats) { - var nativeGetstats = obj.prototype.getStats; - obj.prototype.getStats = function() { - return nativeGetstats.apply(this) - .then(function(nativeStats) { - var mapStats = new Map(); - Object.keys(nativeStats).forEach(function(id) { - nativeStats[id].type = fixStatsType(nativeStats[id]); - mapStats.set(id, nativeStats[id]); - }); - return mapStats; - }); - }; - } - }); - - // legacy callback shims. Should be moved to adapter.js some days. - var methods = ['createOffer', 'createAnswer']; - methods.forEach(function(method) { - var nativeMethod = RTCPeerConnection.prototype[method]; - RTCPeerConnection.prototype[method] = function() { - var args = arguments; - if (typeof args[0] === 'function' || - typeof args[1] === 'function') { // legacy - return nativeMethod.apply(this, [arguments[2]]) - .then(function(description) { - if (typeof args[0] === 'function') { - args[0].apply(null, [description]); - } - }, function(error) { - if (typeof args[1] === 'function') { - args[1].apply(null, [error]); - } - }); - } - return nativeMethod.apply(this, arguments); - }; - }); - - methods = ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate']; - methods.forEach(function(method) { - var nativeMethod = RTCPeerConnection.prototype[method]; - RTCPeerConnection.prototype[method] = function() { - var args = arguments; - if (typeof args[1] === 'function' || - typeof args[2] === 'function') { // legacy - return nativeMethod.apply(this, arguments) - .then(function() { - if (typeof args[1] === 'function') { - args[1].apply(null); - } - }, function(error) { - if (typeof args[2] === 'function') { - args[2].apply(null, [error]); - } - }); - } - return nativeMethod.apply(this, arguments); - }; - }); - - // getStats is special. It doesn't have a spec legacy method yet we support - // getStats(something, cb) without error callbacks. - ['getStats'].forEach(function(method) { - var nativeMethod = RTCPeerConnection.prototype[method]; - RTCPeerConnection.prototype[method] = function() { - var args = arguments; - if (typeof args[1] === 'function') { - return nativeMethod.apply(this, arguments) - .then(function() { - if (typeof args[1] === 'function') { - args[1].apply(null); - } - }); - } - return nativeMethod.apply(this, arguments); - }; - }); - - return RTCPeerConnection; -}; - -},{"sdp":17}],17:[function(require,module,exports){ -/* eslint-env node */ -'use strict'; - -// SDP helpers. -var SDPUtils = {}; - -// Generate an alphanumeric identifier for cname or mids. -// TODO: use UUIDs instead? https://gist.github.com/jed/982883 -SDPUtils.generateIdentifier = function() { - return Math.random().toString(36).substr(2, 10); -}; - -// The RTCP CNAME used by all peerconnections from the same JS. -SDPUtils.localCName = SDPUtils.generateIdentifier(); - -// Splits SDP into lines, dealing with both CRLF and LF. -SDPUtils.splitLines = function(blob) { - return blob.trim().split('\n').map(function(line) { - return line.trim(); - }); -}; -// Splits SDP into sessionpart and mediasections. Ensures CRLF. -SDPUtils.splitSections = function(blob) { - var parts = blob.split('\nm='); - return parts.map(function(part, index) { - return (index > 0 ? 'm=' + part : part).trim() + '\r\n'; - }); -}; - -// returns the session description. -SDPUtils.getDescription = function(blob) { - var sections = SDPUtils.splitSections(blob); - return sections && sections[0]; -}; - -// returns the individual media sections. -SDPUtils.getMediaSections = function(blob) { - var sections = SDPUtils.splitSections(blob); - sections.shift(); - return sections; -}; - -// Returns lines that start with a certain prefix. -SDPUtils.matchPrefix = function(blob, prefix) { - return SDPUtils.splitLines(blob).filter(function(line) { - return line.indexOf(prefix) === 0; - }); -}; - -// Parses an ICE candidate line. Sample input: -// candidate:702786350 2 udp 41819902 8.8.8.8 60769 typ relay raddr 8.8.8.8 -// rport 55996" -SDPUtils.parseCandidate = function(line) { - var parts; - // Parse both variants. - if (line.indexOf('a=candidate:') === 0) { - parts = line.substring(12).split(' '); - } else { - parts = line.substring(10).split(' '); - } - - var candidate = { - foundation: parts[0], - component: parseInt(parts[1], 10), - protocol: parts[2].toLowerCase(), - priority: parseInt(parts[3], 10), - ip: parts[4], - address: parts[4], // address is an alias for ip. - port: parseInt(parts[5], 10), - // skip parts[6] == 'typ' - type: parts[7] - }; - - for (var i = 8; i < parts.length; i += 2) { - switch (parts[i]) { - case 'raddr': - candidate.relatedAddress = parts[i + 1]; - break; - case 'rport': - candidate.relatedPort = parseInt(parts[i + 1], 10); - break; - case 'tcptype': - candidate.tcpType = parts[i + 1]; - break; - case 'ufrag': - candidate.ufrag = parts[i + 1]; // for backward compability. - candidate.usernameFragment = parts[i + 1]; - break; - default: // extension handling, in particular ufrag - candidate[parts[i]] = parts[i + 1]; - break; - } - } - return candidate; -}; - -// Translates a candidate object into SDP candidate attribute. -SDPUtils.writeCandidate = function(candidate) { - var sdp = []; - sdp.push(candidate.foundation); - sdp.push(candidate.component); - sdp.push(candidate.protocol.toUpperCase()); - sdp.push(candidate.priority); - sdp.push(candidate.address || candidate.ip); - sdp.push(candidate.port); - - var type = candidate.type; - sdp.push('typ'); - sdp.push(type); - if (type !== 'host' && candidate.relatedAddress && - candidate.relatedPort) { - sdp.push('raddr'); - sdp.push(candidate.relatedAddress); - sdp.push('rport'); - sdp.push(candidate.relatedPort); - } - if (candidate.tcpType && candidate.protocol.toLowerCase() === 'tcp') { - sdp.push('tcptype'); - sdp.push(candidate.tcpType); - } - if (candidate.usernameFragment || candidate.ufrag) { - sdp.push('ufrag'); - sdp.push(candidate.usernameFragment || candidate.ufrag); - } - return 'candidate:' + sdp.join(' '); -}; - -// Parses an ice-options line, returns an array of option tags. -// a=ice-options:foo bar -SDPUtils.parseIceOptions = function(line) { - return line.substr(14).split(' '); -}; - -// Parses an rtpmap line, returns RTCRtpCoddecParameters. Sample input: -// a=rtpmap:111 opus/48000/2 -SDPUtils.parseRtpMap = function(line) { - var parts = line.substr(9).split(' '); - var parsed = { - payloadType: parseInt(parts.shift(), 10) // was: id - }; - - parts = parts[0].split('/'); - - parsed.name = parts[0]; - parsed.clockRate = parseInt(parts[1], 10); // was: clockrate - parsed.channels = parts.length === 3 ? parseInt(parts[2], 10) : 1; - // legacy alias, got renamed back to channels in ORTC. - parsed.numChannels = parsed.channels; - return parsed; -}; - -// Generate an a=rtpmap line from RTCRtpCodecCapability or -// RTCRtpCodecParameters. -SDPUtils.writeRtpMap = function(codec) { - var pt = codec.payloadType; - if (codec.preferredPayloadType !== undefined) { - pt = codec.preferredPayloadType; - } - var channels = codec.channels || codec.numChannels || 1; - return 'a=rtpmap:' + pt + ' ' + codec.name + '/' + codec.clockRate + - (channels !== 1 ? '/' + channels : '') + '\r\n'; -}; - -// Parses an a=extmap line (headerextension from RFC 5285). Sample input: -// a=extmap:2 urn:ietf:params:rtp-hdrext:toffset -// a=extmap:2/sendonly urn:ietf:params:rtp-hdrext:toffset -SDPUtils.parseExtmap = function(line) { - var parts = line.substr(9).split(' '); - return { - id: parseInt(parts[0], 10), - direction: parts[0].indexOf('/') > 0 ? parts[0].split('/')[1] : 'sendrecv', - uri: parts[1] - }; -}; - -// Generates a=extmap line from RTCRtpHeaderExtensionParameters or -// RTCRtpHeaderExtension. -SDPUtils.writeExtmap = function(headerExtension) { - return 'a=extmap:' + (headerExtension.id || headerExtension.preferredId) + - (headerExtension.direction && headerExtension.direction !== 'sendrecv' - ? '/' + headerExtension.direction - : '') + - ' ' + headerExtension.uri + '\r\n'; -}; - -// Parses an ftmp line, returns dictionary. Sample input: -// a=fmtp:96 vbr=on;cng=on -// Also deals with vbr=on; cng=on -SDPUtils.parseFmtp = function(line) { - var parsed = {}; - var kv; - var parts = line.substr(line.indexOf(' ') + 1).split(';'); - for (var j = 0; j < parts.length; j++) { - kv = parts[j].trim().split('='); - parsed[kv[0].trim()] = kv[1]; - } - return parsed; -}; - -// Generates an a=ftmp line from RTCRtpCodecCapability or RTCRtpCodecParameters. -SDPUtils.writeFmtp = function(codec) { - var line = ''; - var pt = codec.payloadType; - if (codec.preferredPayloadType !== undefined) { - pt = codec.preferredPayloadType; - } - if (codec.parameters && Object.keys(codec.parameters).length) { - var params = []; - Object.keys(codec.parameters).forEach(function(param) { - if (codec.parameters[param]) { - params.push(param + '=' + codec.parameters[param]); - } else { - params.push(param); - } - }); - line += 'a=fmtp:' + pt + ' ' + params.join(';') + '\r\n'; - } - return line; -}; - -// Parses an rtcp-fb line, returns RTCPRtcpFeedback object. Sample input: -// a=rtcp-fb:98 nack rpsi -SDPUtils.parseRtcpFb = function(line) { - var parts = line.substr(line.indexOf(' ') + 1).split(' '); - return { - type: parts.shift(), - parameter: parts.join(' ') - }; -}; -// Generate a=rtcp-fb lines from RTCRtpCodecCapability or RTCRtpCodecParameters. -SDPUtils.writeRtcpFb = function(codec) { - var lines = ''; - var pt = codec.payloadType; - if (codec.preferredPayloadType !== undefined) { - pt = codec.preferredPayloadType; - } - if (codec.rtcpFeedback && codec.rtcpFeedback.length) { - // FIXME: special handling for trr-int? - codec.rtcpFeedback.forEach(function(fb) { - lines += 'a=rtcp-fb:' + pt + ' ' + fb.type + - (fb.parameter && fb.parameter.length ? ' ' + fb.parameter : '') + - '\r\n'; - }); - } - return lines; -}; - -// Parses an RFC 5576 ssrc media attribute. Sample input: -// a=ssrc:3735928559 cname:something -SDPUtils.parseSsrcMedia = function(line) { - var sp = line.indexOf(' '); - var parts = { - ssrc: parseInt(line.substr(7, sp - 7), 10) - }; - var colon = line.indexOf(':', sp); - if (colon > -1) { - parts.attribute = line.substr(sp + 1, colon - sp - 1); - parts.value = line.substr(colon + 1); - } else { - parts.attribute = line.substr(sp + 1); - } - return parts; -}; - -SDPUtils.parseSsrcGroup = function(line) { - var parts = line.substr(13).split(' '); - return { - semantics: parts.shift(), - ssrcs: parts.map(function(ssrc) { - return parseInt(ssrc, 10); - }) - }; -}; - -// Extracts the MID (RFC 5888) from a media section. -// returns the MID or undefined if no mid line was found. -SDPUtils.getMid = function(mediaSection) { - var mid = SDPUtils.matchPrefix(mediaSection, 'a=mid:')[0]; - if (mid) { - return mid.substr(6); - } -}; - -SDPUtils.parseFingerprint = function(line) { - var parts = line.substr(14).split(' '); - return { - algorithm: parts[0].toLowerCase(), // algorithm is case-sensitive in Edge. - value: parts[1] - }; -}; - -// Extracts DTLS parameters from SDP media section or sessionpart. -// FIXME: for consistency with other functions this should only -// get the fingerprint line as input. See also getIceParameters. -SDPUtils.getDtlsParameters = function(mediaSection, sessionpart) { - var lines = SDPUtils.matchPrefix(mediaSection + sessionpart, - 'a=fingerprint:'); - // Note: a=setup line is ignored since we use the 'auto' role. - // Note2: 'algorithm' is not case sensitive except in Edge. - return { - role: 'auto', - fingerprints: lines.map(SDPUtils.parseFingerprint) - }; -}; - -// Serializes DTLS parameters to SDP. -SDPUtils.writeDtlsParameters = function(params, setupType) { - var sdp = 'a=setup:' + setupType + '\r\n'; - params.fingerprints.forEach(function(fp) { - sdp += 'a=fingerprint:' + fp.algorithm + ' ' + fp.value + '\r\n'; - }); - return sdp; -}; - -// Parses a=crypto lines into -// https://rawgit.com/aboba/edgertc/master/msortc-rs4.html#dictionary-rtcsrtpsdesparameters-members -SDPUtils.parseCryptoLine = function(line) { - var parts = line.substr(9).split(' '); - return { - tag: parseInt(parts[0], 10), - cryptoSuite: parts[1], - keyParams: parts[2], - sessionParams: parts.slice(3), - }; -}; - -SDPUtils.writeCryptoLine = function(parameters) { - return 'a=crypto:' + parameters.tag + ' ' + - parameters.cryptoSuite + ' ' + - (typeof parameters.keyParams === 'object' - ? SDPUtils.writeCryptoKeyParams(parameters.keyParams) - : parameters.keyParams) + - (parameters.sessionParams ? ' ' + parameters.sessionParams.join(' ') : '') + - '\r\n'; -}; - -// Parses the crypto key parameters into -// https://rawgit.com/aboba/edgertc/master/msortc-rs4.html#rtcsrtpkeyparam* -SDPUtils.parseCryptoKeyParams = function(keyParams) { - if (keyParams.indexOf('inline:') !== 0) { - return null; - } - var parts = keyParams.substr(7).split('|'); - return { - keyMethod: 'inline', - keySalt: parts[0], - lifeTime: parts[1], - mkiValue: parts[2] ? parts[2].split(':')[0] : undefined, - mkiLength: parts[2] ? parts[2].split(':')[1] : undefined, - }; -}; - -SDPUtils.writeCryptoKeyParams = function(keyParams) { - return keyParams.keyMethod + ':' - + keyParams.keySalt + - (keyParams.lifeTime ? '|' + keyParams.lifeTime : '') + - (keyParams.mkiValue && keyParams.mkiLength - ? '|' + keyParams.mkiValue + ':' + keyParams.mkiLength - : ''); -}; - -// Extracts all SDES paramters. -SDPUtils.getCryptoParameters = function(mediaSection, sessionpart) { - var lines = SDPUtils.matchPrefix(mediaSection + sessionpart, - 'a=crypto:'); - return lines.map(SDPUtils.parseCryptoLine); -}; - -// Parses ICE information from SDP media section or sessionpart. -// FIXME: for consistency with other functions this should only -// get the ice-ufrag and ice-pwd lines as input. -SDPUtils.getIceParameters = function(mediaSection, sessionpart) { - var ufrag = SDPUtils.matchPrefix(mediaSection + sessionpart, - 'a=ice-ufrag:')[0]; - var pwd = SDPUtils.matchPrefix(mediaSection + sessionpart, - 'a=ice-pwd:')[0]; - if (!(ufrag && pwd)) { - return null; - } - return { - usernameFragment: ufrag.substr(12), - password: pwd.substr(10), - }; -}; - -// Serializes ICE parameters to SDP. -SDPUtils.writeIceParameters = function(params) { - return 'a=ice-ufrag:' + params.usernameFragment + '\r\n' + - 'a=ice-pwd:' + params.password + '\r\n'; -}; - -// Parses the SDP media section and returns RTCRtpParameters. -SDPUtils.parseRtpParameters = function(mediaSection) { - var description = { - codecs: [], - headerExtensions: [], - fecMechanisms: [], - rtcp: [] - }; - var lines = SDPUtils.splitLines(mediaSection); - var mline = lines[0].split(' '); - for (var i = 3; i < mline.length; i++) { // find all codecs from mline[3..] - var pt = mline[i]; - var rtpmapline = SDPUtils.matchPrefix( - mediaSection, 'a=rtpmap:' + pt + ' ')[0]; - if (rtpmapline) { - var codec = SDPUtils.parseRtpMap(rtpmapline); - var fmtps = SDPUtils.matchPrefix( - mediaSection, 'a=fmtp:' + pt + ' '); - // Only the first a=fmtp: is considered. - codec.parameters = fmtps.length ? SDPUtils.parseFmtp(fmtps[0]) : {}; - codec.rtcpFeedback = SDPUtils.matchPrefix( - mediaSection, 'a=rtcp-fb:' + pt + ' ') - .map(SDPUtils.parseRtcpFb); - description.codecs.push(codec); - // parse FEC mechanisms from rtpmap lines. - switch (codec.name.toUpperCase()) { - case 'RED': - case 'ULPFEC': - description.fecMechanisms.push(codec.name.toUpperCase()); - break; - default: // only RED and ULPFEC are recognized as FEC mechanisms. - break; - } - } - } - SDPUtils.matchPrefix(mediaSection, 'a=extmap:').forEach(function(line) { - description.headerExtensions.push(SDPUtils.parseExtmap(line)); - }); - // FIXME: parse rtcp. - return description; -}; - -// Generates parts of the SDP media section describing the capabilities / -// parameters. -SDPUtils.writeRtpDescription = function(kind, caps) { - var sdp = ''; - - // Build the mline. - sdp += 'm=' + kind + ' '; - sdp += caps.codecs.length > 0 ? '9' : '0'; // reject if no codecs. - sdp += ' UDP/TLS/RTP/SAVPF '; - sdp += caps.codecs.map(function(codec) { - if (codec.preferredPayloadType !== undefined) { - return codec.preferredPayloadType; - } - return codec.payloadType; - }).join(' ') + '\r\n'; - - sdp += 'c=IN IP4 0.0.0.0\r\n'; - sdp += 'a=rtcp:9 IN IP4 0.0.0.0\r\n'; - - // Add a=rtpmap lines for each codec. Also fmtp and rtcp-fb. - caps.codecs.forEach(function(codec) { - sdp += SDPUtils.writeRtpMap(codec); - sdp += SDPUtils.writeFmtp(codec); - sdp += SDPUtils.writeRtcpFb(codec); - }); - var maxptime = 0; - caps.codecs.forEach(function(codec) { - if (codec.maxptime > maxptime) { - maxptime = codec.maxptime; - } - }); - if (maxptime > 0) { - sdp += 'a=maxptime:' + maxptime + '\r\n'; - } - sdp += 'a=rtcp-mux\r\n'; - - if (caps.headerExtensions) { - caps.headerExtensions.forEach(function(extension) { - sdp += SDPUtils.writeExtmap(extension); - }); - } - // FIXME: write fecMechanisms. - return sdp; -}; - -// Parses the SDP media section and returns an array of -// RTCRtpEncodingParameters. -SDPUtils.parseRtpEncodingParameters = function(mediaSection) { - var encodingParameters = []; - var description = SDPUtils.parseRtpParameters(mediaSection); - var hasRed = description.fecMechanisms.indexOf('RED') !== -1; - var hasUlpfec = description.fecMechanisms.indexOf('ULPFEC') !== -1; - - // filter a=ssrc:... cname:, ignore PlanB-msid - var ssrcs = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:') - .map(function(line) { - return SDPUtils.parseSsrcMedia(line); - }) - .filter(function(parts) { - return parts.attribute === 'cname'; - }); - var primarySsrc = ssrcs.length > 0 && ssrcs[0].ssrc; - var secondarySsrc; - - var flows = SDPUtils.matchPrefix(mediaSection, 'a=ssrc-group:FID') - .map(function(line) { - var parts = line.substr(17).split(' '); - return parts.map(function(part) { - return parseInt(part, 10); - }); - }); - if (flows.length > 0 && flows[0].length > 1 && flows[0][0] === primarySsrc) { - secondarySsrc = flows[0][1]; - } - - description.codecs.forEach(function(codec) { - if (codec.name.toUpperCase() === 'RTX' && codec.parameters.apt) { - var encParam = { - ssrc: primarySsrc, - codecPayloadType: parseInt(codec.parameters.apt, 10) - }; - if (primarySsrc && secondarySsrc) { - encParam.rtx = {ssrc: secondarySsrc}; - } - encodingParameters.push(encParam); - if (hasRed) { - encParam = JSON.parse(JSON.stringify(encParam)); - encParam.fec = { - ssrc: primarySsrc, - mechanism: hasUlpfec ? 'red+ulpfec' : 'red' - }; - encodingParameters.push(encParam); - } - } - }); - if (encodingParameters.length === 0 && primarySsrc) { - encodingParameters.push({ - ssrc: primarySsrc - }); - } - - // we support both b=AS and b=TIAS but interpret AS as TIAS. - var bandwidth = SDPUtils.matchPrefix(mediaSection, 'b='); - if (bandwidth.length) { - if (bandwidth[0].indexOf('b=TIAS:') === 0) { - bandwidth = parseInt(bandwidth[0].substr(7), 10); - } else if (bandwidth[0].indexOf('b=AS:') === 0) { - // use formula from JSEP to convert b=AS to TIAS value. - bandwidth = parseInt(bandwidth[0].substr(5), 10) * 1000 * 0.95 - - (50 * 40 * 8); - } else { - bandwidth = undefined; - } - encodingParameters.forEach(function(params) { - params.maxBitrate = bandwidth; - }); - } - return encodingParameters; -}; - -// parses http://draft.ortc.org/#rtcrtcpparameters* -SDPUtils.parseRtcpParameters = function(mediaSection) { - var rtcpParameters = {}; - - // Gets the first SSRC. Note tha with RTX there might be multiple - // SSRCs. - var remoteSsrc = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:') - .map(function(line) { - return SDPUtils.parseSsrcMedia(line); - }) - .filter(function(obj) { - return obj.attribute === 'cname'; - })[0]; - if (remoteSsrc) { - rtcpParameters.cname = remoteSsrc.value; - rtcpParameters.ssrc = remoteSsrc.ssrc; - } - - // Edge uses the compound attribute instead of reducedSize - // compound is !reducedSize - var rsize = SDPUtils.matchPrefix(mediaSection, 'a=rtcp-rsize'); - rtcpParameters.reducedSize = rsize.length > 0; - rtcpParameters.compound = rsize.length === 0; - - // parses the rtcp-mux attrŅ–bute. - // Note that Edge does not support unmuxed RTCP. - var mux = SDPUtils.matchPrefix(mediaSection, 'a=rtcp-mux'); - rtcpParameters.mux = mux.length > 0; - - return rtcpParameters; -}; - -// parses either a=msid: or a=ssrc:... msid lines and returns -// the id of the MediaStream and MediaStreamTrack. -SDPUtils.parseMsid = function(mediaSection) { - var parts; - var spec = SDPUtils.matchPrefix(mediaSection, 'a=msid:'); - if (spec.length === 1) { - parts = spec[0].substr(7).split(' '); - return {stream: parts[0], track: parts[1]}; - } - var planB = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:') - .map(function(line) { - return SDPUtils.parseSsrcMedia(line); - }) - .filter(function(msidParts) { - return msidParts.attribute === 'msid'; - }); - if (planB.length > 0) { - parts = planB[0].value.split(' '); - return {stream: parts[0], track: parts[1]}; - } -}; - -// SCTP -// parses draft-ietf-mmusic-sctp-sdp-26 first and falls back -// to draft-ietf-mmusic-sctp-sdp-05 -SDPUtils.parseSctpDescription = function(mediaSection) { - var mline = SDPUtils.parseMLine(mediaSection); - var maxSizeLine = SDPUtils.matchPrefix(mediaSection, 'a=max-message-size:'); - var maxMessageSize; - if (maxSizeLine.length > 0) { - maxMessageSize = parseInt(maxSizeLine[0].substr(19), 10); - } - if (isNaN(maxMessageSize)) { - maxMessageSize = 65536; - } - var sctpPort = SDPUtils.matchPrefix(mediaSection, 'a=sctp-port:'); - if (sctpPort.length > 0) { - return { - port: parseInt(sctpPort[0].substr(12), 10), - protocol: mline.fmt, - maxMessageSize: maxMessageSize - }; - } - var sctpMapLines = SDPUtils.matchPrefix(mediaSection, 'a=sctpmap:'); - if (sctpMapLines.length > 0) { - var parts = SDPUtils.matchPrefix(mediaSection, 'a=sctpmap:')[0] - .substr(10) - .split(' '); - return { - port: parseInt(parts[0], 10), - protocol: parts[1], - maxMessageSize: maxMessageSize - }; - } -}; - -// SCTP -// outputs the draft-ietf-mmusic-sctp-sdp-26 version that all browsers -// support by now receiving in this format, unless we originally parsed -// as the draft-ietf-mmusic-sctp-sdp-05 format (indicated by the m-line -// protocol of DTLS/SCTP -- without UDP/ or TCP/) -SDPUtils.writeSctpDescription = function(media, sctp) { - var output = []; - if (media.protocol !== 'DTLS/SCTP') { - output = [ - 'm=' + media.kind + ' 9 ' + media.protocol + ' ' + sctp.protocol + '\r\n', - 'c=IN IP4 0.0.0.0\r\n', - 'a=sctp-port:' + sctp.port + '\r\n' - ]; - } else { - output = [ - 'm=' + media.kind + ' 9 ' + media.protocol + ' ' + sctp.port + '\r\n', - 'c=IN IP4 0.0.0.0\r\n', - 'a=sctpmap:' + sctp.port + ' ' + sctp.protocol + ' 65535\r\n' - ]; - } - if (sctp.maxMessageSize !== undefined) { - output.push('a=max-message-size:' + sctp.maxMessageSize + '\r\n'); - } - return output.join(''); -}; - -// Generate a session ID for SDP. -// https://tools.ietf.org/html/draft-ietf-rtcweb-jsep-20#section-5.2.1 -// recommends using a cryptographically random +ve 64-bit value -// but right now this should be acceptable and within the right range -SDPUtils.generateSessionId = function() { - return Math.random().toString().substr(2, 21); -}; - -// Write boilder plate for start of SDP -// sessId argument is optional - if not supplied it will -// be generated randomly -// sessVersion is optional and defaults to 2 -// sessUser is optional and defaults to 'thisisadapterortc' -SDPUtils.writeSessionBoilerplate = function(sessId, sessVer, sessUser) { - var sessionId; - var version = sessVer !== undefined ? sessVer : 2; - if (sessId) { - sessionId = sessId; - } else { - sessionId = SDPUtils.generateSessionId(); - } - var user = sessUser || 'thisisadapterortc'; - // FIXME: sess-id should be an NTP timestamp. - return 'v=0\r\n' + - 'o=' + user + ' ' + sessionId + ' ' + version + - ' IN IP4 127.0.0.1\r\n' + - 's=-\r\n' + - 't=0 0\r\n'; -}; - -SDPUtils.writeMediaSection = function(transceiver, caps, type, stream) { - var sdp = SDPUtils.writeRtpDescription(transceiver.kind, caps); - - // Map ICE parameters (ufrag, pwd) to SDP. - sdp += SDPUtils.writeIceParameters( - transceiver.iceGatherer.getLocalParameters()); - - // Map DTLS parameters to SDP. - sdp += SDPUtils.writeDtlsParameters( - transceiver.dtlsTransport.getLocalParameters(), - type === 'offer' ? 'actpass' : 'active'); - - sdp += 'a=mid:' + transceiver.mid + '\r\n'; - - if (transceiver.direction) { - sdp += 'a=' + transceiver.direction + '\r\n'; - } else if (transceiver.rtpSender && transceiver.rtpReceiver) { - sdp += 'a=sendrecv\r\n'; - } else if (transceiver.rtpSender) { - sdp += 'a=sendonly\r\n'; - } else if (transceiver.rtpReceiver) { - sdp += 'a=recvonly\r\n'; - } else { - sdp += 'a=inactive\r\n'; - } - - if (transceiver.rtpSender) { - // spec. - var msid = 'msid:' + stream.id + ' ' + - transceiver.rtpSender.track.id + '\r\n'; - sdp += 'a=' + msid; - - // for Chrome. - sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc + - ' ' + msid; - if (transceiver.sendEncodingParameters[0].rtx) { - sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc + - ' ' + msid; - sdp += 'a=ssrc-group:FID ' + - transceiver.sendEncodingParameters[0].ssrc + ' ' + - transceiver.sendEncodingParameters[0].rtx.ssrc + - '\r\n'; - } - } - // FIXME: this should be written by writeRtpDescription. - sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc + - ' cname:' + SDPUtils.localCName + '\r\n'; - if (transceiver.rtpSender && transceiver.sendEncodingParameters[0].rtx) { - sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc + - ' cname:' + SDPUtils.localCName + '\r\n'; - } - return sdp; -}; - -// Gets the direction from the mediaSection or the sessionpart. -SDPUtils.getDirection = function(mediaSection, sessionpart) { - // Look for sendrecv, sendonly, recvonly, inactive, default to sendrecv. - var lines = SDPUtils.splitLines(mediaSection); - for (var i = 0; i < lines.length; i++) { - switch (lines[i]) { - case 'a=sendrecv': - case 'a=sendonly': - case 'a=recvonly': - case 'a=inactive': - return lines[i].substr(2); - default: - // FIXME: What should happen here? - } - } - if (sessionpart) { - return SDPUtils.getDirection(sessionpart); - } - return 'sendrecv'; -}; - -SDPUtils.getKind = function(mediaSection) { - var lines = SDPUtils.splitLines(mediaSection); - var mline = lines[0].split(' '); - return mline[0].substr(2); -}; - -SDPUtils.isRejected = function(mediaSection) { - return mediaSection.split(' ', 2)[1] === '0'; -}; - -SDPUtils.parseMLine = function(mediaSection) { - var lines = SDPUtils.splitLines(mediaSection); - var parts = lines[0].substr(2).split(' '); - return { - kind: parts[0], - port: parseInt(parts[1], 10), - protocol: parts[2], - fmt: parts.slice(3).join(' ') - }; -}; - -SDPUtils.parseOLine = function(mediaSection) { - var line = SDPUtils.matchPrefix(mediaSection, 'o=')[0]; - var parts = line.substr(2).split(' '); - return { - username: parts[0], - sessionId: parts[1], - sessionVersion: parseInt(parts[2], 10), - netType: parts[3], - addressType: parts[4], - address: parts[5] - }; -}; - -// a very naive interpretation of a valid SDP. -SDPUtils.isValidSDP = function(blob) { - if (typeof blob !== 'string' || blob.length === 0) { - return false; - } - var lines = SDPUtils.splitLines(blob); - for (var i = 0; i < lines.length; i++) { - if (lines[i].length < 2 || lines[i].charAt(1) !== '=') { - return false; - } - // TODO: check the modifier a bit more. - } - return true; -}; - -// Expose public methods. -if (typeof module === 'object') { - module.exports = SDPUtils; -} - -},{}]},{},[1])(1) -});