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3514 lines
127 KiB
3514 lines
127 KiB
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.adapter = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){ |
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/* |
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* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. |
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* |
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* Use of this source code is governed by a BSD-style license |
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* that can be found in the LICENSE file in the root of the source |
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* tree. |
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*/ |
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/* eslint-env node */ |
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|
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'use strict'; |
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|
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var _adapter_factory = require('./adapter_factory.js'); |
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|
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var adapter = (0, _adapter_factory.adapterFactory)({ window: typeof window === 'undefined' ? undefined : window }); |
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module.exports = adapter; // this is the difference from adapter_core. |
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|
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},{"./adapter_factory.js":2}],2:[function(require,module,exports){ |
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'use strict'; |
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|
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Object.defineProperty(exports, "__esModule", { |
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value: true |
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}); |
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exports.adapterFactory = adapterFactory; |
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|
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var _utils = require('./utils'); |
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|
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var utils = _interopRequireWildcard(_utils); |
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var _chrome_shim = require('./chrome/chrome_shim'); |
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|
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var chromeShim = _interopRequireWildcard(_chrome_shim); |
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var _firefox_shim = require('./firefox/firefox_shim'); |
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var firefoxShim = _interopRequireWildcard(_firefox_shim); |
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var _safari_shim = require('./safari/safari_shim'); |
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var safariShim = _interopRequireWildcard(_safari_shim); |
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var _common_shim = require('./common_shim'); |
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var commonShim = _interopRequireWildcard(_common_shim); |
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var _sdp = require('sdp'); |
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var sdp = _interopRequireWildcard(_sdp); |
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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; } } |
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|
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// Shimming starts here. |
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/* |
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* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. |
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* |
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* Use of this source code is governed by a BSD-style license |
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* that can be found in the LICENSE file in the root of the source |
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* tree. |
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*/ |
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function adapterFactory() { |
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var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {}, |
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window = _ref.window; |
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|
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var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : { |
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shimChrome: true, |
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shimFirefox: true, |
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shimSafari: true |
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}; |
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|
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// Utils. |
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var logging = utils.log; |
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var browserDetails = utils.detectBrowser(window); |
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|
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var adapter = { |
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browserDetails: browserDetails, |
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commonShim: commonShim, |
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extractVersion: utils.extractVersion, |
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disableLog: utils.disableLog, |
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disableWarnings: utils.disableWarnings, |
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// Expose sdp as a convenience. For production apps include directly. |
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sdp: sdp |
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}; |
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|
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// Shim browser if found. |
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switch (browserDetails.browser) { |
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case 'chrome': |
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if (!chromeShim || !chromeShim.shimPeerConnection || !options.shimChrome) { |
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logging('Chrome shim is not included in this adapter release.'); |
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return adapter; |
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} |
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if (browserDetails.version === null) { |
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logging('Chrome shim can not determine version, not shimming.'); |
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return adapter; |
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} |
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logging('adapter.js shimming chrome.'); |
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// Export to the adapter global object visible in the browser. |
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adapter.browserShim = chromeShim; |
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|
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// Must be called before shimPeerConnection. |
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commonShim.shimAddIceCandidateNullOrEmpty(window, browserDetails); |
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commonShim.shimParameterlessSetLocalDescription(window, browserDetails); |
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chromeShim.shimGetUserMedia(window, browserDetails); |
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chromeShim.shimMediaStream(window, browserDetails); |
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chromeShim.shimPeerConnection(window, browserDetails); |
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chromeShim.shimOnTrack(window, browserDetails); |
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chromeShim.shimAddTrackRemoveTrack(window, browserDetails); |
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chromeShim.shimGetSendersWithDtmf(window, browserDetails); |
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chromeShim.shimGetStats(window, browserDetails); |
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chromeShim.shimSenderReceiverGetStats(window, browserDetails); |
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chromeShim.fixNegotiationNeeded(window, browserDetails); |
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commonShim.shimRTCIceCandidate(window, browserDetails); |
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commonShim.shimRTCIceCandidateRelayProtocol(window, browserDetails); |
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commonShim.shimConnectionState(window, browserDetails); |
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commonShim.shimMaxMessageSize(window, browserDetails); |
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commonShim.shimSendThrowTypeError(window, browserDetails); |
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commonShim.removeExtmapAllowMixed(window, browserDetails); |
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break; |
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case 'firefox': |
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if (!firefoxShim || !firefoxShim.shimPeerConnection || !options.shimFirefox) { |
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logging('Firefox shim is not included in this adapter release.'); |
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return adapter; |
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} |
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logging('adapter.js shimming firefox.'); |
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// Export to the adapter global object visible in the browser. |
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adapter.browserShim = firefoxShim; |
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|
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// Must be called before shimPeerConnection. |
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commonShim.shimAddIceCandidateNullOrEmpty(window, browserDetails); |
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commonShim.shimParameterlessSetLocalDescription(window, browserDetails); |
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|
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firefoxShim.shimGetUserMedia(window, browserDetails); |
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firefoxShim.shimPeerConnection(window, browserDetails); |
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firefoxShim.shimOnTrack(window, browserDetails); |
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firefoxShim.shimRemoveStream(window, browserDetails); |
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firefoxShim.shimSenderGetStats(window, browserDetails); |
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firefoxShim.shimReceiverGetStats(window, browserDetails); |
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firefoxShim.shimRTCDataChannel(window, browserDetails); |
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firefoxShim.shimAddTransceiver(window, browserDetails); |
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firefoxShim.shimGetParameters(window, browserDetails); |
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firefoxShim.shimCreateOffer(window, browserDetails); |
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firefoxShim.shimCreateAnswer(window, browserDetails); |
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|
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commonShim.shimRTCIceCandidate(window, browserDetails); |
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commonShim.shimConnectionState(window, browserDetails); |
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commonShim.shimMaxMessageSize(window, browserDetails); |
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commonShim.shimSendThrowTypeError(window, browserDetails); |
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break; |
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case 'safari': |
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if (!safariShim || !options.shimSafari) { |
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logging('Safari shim is not included in this adapter release.'); |
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return adapter; |
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} |
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logging('adapter.js shimming safari.'); |
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// Export to the adapter global object visible in the browser. |
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adapter.browserShim = safariShim; |
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|
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// Must be called before shimCallbackAPI. |
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commonShim.shimAddIceCandidateNullOrEmpty(window, browserDetails); |
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commonShim.shimParameterlessSetLocalDescription(window, browserDetails); |
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|
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safariShim.shimRTCIceServerUrls(window, browserDetails); |
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safariShim.shimCreateOfferLegacy(window, browserDetails); |
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safariShim.shimCallbacksAPI(window, browserDetails); |
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safariShim.shimLocalStreamsAPI(window, browserDetails); |
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safariShim.shimRemoteStreamsAPI(window, browserDetails); |
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safariShim.shimTrackEventTransceiver(window, browserDetails); |
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safariShim.shimGetUserMedia(window, browserDetails); |
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safariShim.shimAudioContext(window, browserDetails); |
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commonShim.shimRTCIceCandidate(window, browserDetails); |
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commonShim.shimRTCIceCandidateRelayProtocol(window, browserDetails); |
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commonShim.shimMaxMessageSize(window, browserDetails); |
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commonShim.shimSendThrowTypeError(window, browserDetails); |
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commonShim.removeExtmapAllowMixed(window, browserDetails); |
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break; |
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default: |
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logging('Unsupported browser!'); |
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break; |
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} |
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|
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return adapter; |
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} |
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|
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// Browser shims. |
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|
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},{"./chrome/chrome_shim":3,"./common_shim":6,"./firefox/firefox_shim":7,"./safari/safari_shim":10,"./utils":11,"sdp":12}],3:[function(require,module,exports){ |
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/* |
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* 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. |
|
*/ |
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/* eslint-env node */ |
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'use strict'; |
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|
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Object.defineProperty(exports, "__esModule", { |
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value: true |
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}); |
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exports.shimGetDisplayMedia = exports.shimGetUserMedia = undefined; |
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|
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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; }; |
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var _getusermedia = require('./getusermedia'); |
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Object.defineProperty(exports, 'shimGetUserMedia', { |
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enumerable: true, |
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get: function get() { |
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return _getusermedia.shimGetUserMedia; |
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} |
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}); |
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var _getdisplaymedia = require('./getdisplaymedia'); |
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Object.defineProperty(exports, 'shimGetDisplayMedia', { |
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enumerable: true, |
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get: function get() { |
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return _getdisplaymedia.shimGetDisplayMedia; |
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} |
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}); |
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exports.shimMediaStream = shimMediaStream; |
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exports.shimOnTrack = shimOnTrack; |
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exports.shimGetSendersWithDtmf = shimGetSendersWithDtmf; |
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exports.shimGetStats = shimGetStats; |
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exports.shimSenderReceiverGetStats = shimSenderReceiverGetStats; |
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exports.shimAddTrackRemoveTrackWithNative = shimAddTrackRemoveTrackWithNative; |
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exports.shimAddTrackRemoveTrack = shimAddTrackRemoveTrack; |
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exports.shimPeerConnection = shimPeerConnection; |
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exports.fixNegotiationNeeded = fixNegotiationNeeded; |
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|
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var _utils = require('../utils.js'); |
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|
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var utils = _interopRequireWildcard(_utils); |
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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; } } |
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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; } |
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function shimMediaStream(window) { |
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window.MediaStream = window.MediaStream || window.webkitMediaStream; |
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} |
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function shimOnTrack(window) { |
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if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCPeerConnection && !('ontrack' in window.RTCPeerConnection.prototype)) { |
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Object.defineProperty(window.RTCPeerConnection.prototype, 'ontrack', { |
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get: function get() { |
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return this._ontrack; |
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}, |
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set: function set(f) { |
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if (this._ontrack) { |
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this.removeEventListener('track', this._ontrack); |
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} |
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this.addEventListener('track', this._ontrack = f); |
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}, |
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enumerable: true, |
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configurable: true |
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}); |
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var origSetRemoteDescription = window.RTCPeerConnection.prototype.setRemoteDescription; |
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window.RTCPeerConnection.prototype.setRemoteDescription = function setRemoteDescription() { |
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var _this = this; |
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|
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if (!this._ontrackpoly) { |
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this._ontrackpoly = function (e) { |
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// onaddstream does not fire when a track is added to an existing |
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// stream. But stream.onaddtrack is implemented so we use that. |
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e.stream.addEventListener('addtrack', function (te) { |
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var receiver = void 0; |
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if (window.RTCPeerConnection.prototype.getReceivers) { |
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receiver = _this.getReceivers().find(function (r) { |
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return r.track && r.track.id === te.track.id; |
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}); |
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} else { |
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receiver = { track: te.track }; |
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} |
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|
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var event = new Event('track'); |
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event.track = te.track; |
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event.receiver = receiver; |
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event.transceiver = { receiver: receiver }; |
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event.streams = [e.stream]; |
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_this.dispatchEvent(event); |
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}); |
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e.stream.getTracks().forEach(function (track) { |
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var receiver = void 0; |
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if (window.RTCPeerConnection.prototype.getReceivers) { |
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receiver = _this.getReceivers().find(function (r) { |
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return r.track && r.track.id === track.id; |
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}); |
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} else { |
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receiver = { track: track }; |
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} |
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var event = new Event('track'); |
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event.track = track; |
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event.receiver = receiver; |
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event.transceiver = { receiver: receiver }; |
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event.streams = [e.stream]; |
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_this.dispatchEvent(event); |
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}); |
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}; |
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this.addEventListener('addstream', this._ontrackpoly); |
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} |
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return origSetRemoteDescription.apply(this, arguments); |
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}; |
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} else { |
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// even if RTCRtpTransceiver is in window, it is only used and |
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// emitted in unified-plan. Unfortunately this means we need |
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// to unconditionally wrap the event. |
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utils.wrapPeerConnectionEvent(window, 'track', function (e) { |
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if (!e.transceiver) { |
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Object.defineProperty(e, 'transceiver', { value: { receiver: e.receiver } }); |
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} |
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return e; |
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}); |
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} |
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} |
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|
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function shimGetSendersWithDtmf(window) { |
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// Overrides addTrack/removeTrack, depends on shimAddTrackRemoveTrack. |
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if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCPeerConnection && !('getSenders' in window.RTCPeerConnection.prototype) && 'createDTMFSender' in window.RTCPeerConnection.prototype) { |
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var shimSenderWithDtmf = function shimSenderWithDtmf(pc, track) { |
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return { |
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track: track, |
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get dtmf() { |
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if (this._dtmf === undefined) { |
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if (track.kind === 'audio') { |
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this._dtmf = pc.createDTMFSender(track); |
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} else { |
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this._dtmf = null; |
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} |
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} |
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return this._dtmf; |
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}, |
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_pc: pc |
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}; |
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}; |
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|
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// augment addTrack when getSenders is not available. |
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if (!window.RTCPeerConnection.prototype.getSenders) { |
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window.RTCPeerConnection.prototype.getSenders = function getSenders() { |
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this._senders = this._senders || []; |
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return this._senders.slice(); // return a copy of the internal state. |
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}; |
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var origAddTrack = window.RTCPeerConnection.prototype.addTrack; |
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window.RTCPeerConnection.prototype.addTrack = function addTrack(track, stream) { |
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var sender = origAddTrack.apply(this, arguments); |
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if (!sender) { |
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sender = shimSenderWithDtmf(this, track); |
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this._senders.push(sender); |
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} |
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return sender; |
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}; |
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|
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var origRemoveTrack = window.RTCPeerConnection.prototype.removeTrack; |
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window.RTCPeerConnection.prototype.removeTrack = function removeTrack(sender) { |
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origRemoveTrack.apply(this, arguments); |
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var idx = this._senders.indexOf(sender); |
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if (idx !== -1) { |
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this._senders.splice(idx, 1); |
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} |
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}; |
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} |
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var origAddStream = window.RTCPeerConnection.prototype.addStream; |
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window.RTCPeerConnection.prototype.addStream = function addStream(stream) { |
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var _this2 = this; |
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|
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this._senders = this._senders || []; |
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origAddStream.apply(this, [stream]); |
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stream.getTracks().forEach(function (track) { |
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_this2._senders.push(shimSenderWithDtmf(_this2, track)); |
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}); |
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}; |
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|
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var origRemoveStream = window.RTCPeerConnection.prototype.removeStream; |
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window.RTCPeerConnection.prototype.removeStream = function removeStream(stream) { |
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var _this3 = this; |
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|
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this._senders = this._senders || []; |
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origRemoveStream.apply(this, [stream]); |
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|
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stream.getTracks().forEach(function (track) { |
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var sender = _this3._senders.find(function (s) { |
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return s.track === track; |
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}); |
|
if (sender) { |
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// remove sender |
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_this3._senders.splice(_this3._senders.indexOf(sender), 1); |
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} |
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}); |
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}; |
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} 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)) { |
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var origGetSenders = window.RTCPeerConnection.prototype.getSenders; |
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window.RTCPeerConnection.prototype.getSenders = function getSenders() { |
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var _this4 = this; |
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|
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var senders = origGetSenders.apply(this, []); |
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senders.forEach(function (sender) { |
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return sender._pc = _this4; |
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}); |
|
return senders; |
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}; |
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|
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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; |
|
} |
|
}); |
|
} |
|
} |
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|
|
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":11,"./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":11}],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.shimRTCIceCandidateRelayProtocol = shimRTCIceCandidateRelayProtocol; |
|
exports.shimMaxMessageSize = shimMaxMessageSize; |
|
exports.shimSendThrowTypeError = shimSendThrowTypeError; |
|
exports.shimConnectionState = shimConnectionState; |
|
exports.removeExtmapAllowMixed = removeExtmapAllowMixed; |
|
exports.shimAddIceCandidateNullOrEmpty = shimAddIceCandidateNullOrEmpty; |
|
exports.shimParameterlessSetLocalDescription = shimParameterlessSetLocalDescription; |
|
|
|
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 shimRTCIceCandidateRelayProtocol(window) { |
|
if (!window.RTCIceCandidate || window.RTCIceCandidate && 'relayProtocol' in window.RTCIceCandidate.prototype) { |
|
return; |
|
} |
|
|
|
// Hook up the augmented candidate in onicecandidate and |
|
// addEventListener('icecandidate', ...) |
|
utils.wrapPeerConnectionEvent(window, 'icecandidate', function (e) { |
|
if (e.candidate) { |
|
var parsedCandidate = _sdp2.default.parseCandidate(e.candidate.candidate); |
|
if (parsedCandidate.type === 'relay') { |
|
// This is a libwebrtc-specific mapping of local type preference |
|
// to relayProtocol. |
|
e.candidate.relayProtocol = { |
|
0: 'tls', |
|
1: 'tcp', |
|
2: 'udp' |
|
}[parsedCandidate.priority >> 24]; |
|
} |
|
} |
|
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); |
|
}; |
|
} |
|
|
|
// Note: Make sure to call this ahead of APIs that modify |
|
// setLocalDescription.length |
|
function shimParameterlessSetLocalDescription(window, browserDetails) { |
|
if (!(window.RTCPeerConnection && window.RTCPeerConnection.prototype)) { |
|
return; |
|
} |
|
var nativeSetLocalDescription = window.RTCPeerConnection.prototype.setLocalDescription; |
|
if (!nativeSetLocalDescription || nativeSetLocalDescription.length === 0) { |
|
return; |
|
} |
|
window.RTCPeerConnection.prototype.setLocalDescription = function setLocalDescription() { |
|
var _this = this; |
|
|
|
var desc = arguments[0] || {}; |
|
if ((typeof desc === 'undefined' ? 'undefined' : _typeof(desc)) !== 'object' || desc.type && desc.sdp) { |
|
return nativeSetLocalDescription.apply(this, arguments); |
|
} |
|
// The remaining steps should technically happen when SLD comes off the |
|
// RTCPeerConnection's operations chain (not ahead of going on it), but |
|
// this is too difficult to shim. Instead, this shim only covers the |
|
// common case where the operations chain is empty. This is imperfect, but |
|
// should cover many cases. Rationale: Even if we can't reduce the glare |
|
// window to zero on imperfect implementations, there's value in tapping |
|
// into the perfect negotiation pattern that several browsers support. |
|
desc = { type: desc.type, sdp: desc.sdp }; |
|
if (!desc.type) { |
|
switch (this.signalingState) { |
|
case 'stable': |
|
case 'have-local-offer': |
|
case 'have-remote-pranswer': |
|
desc.type = 'offer'; |
|
break; |
|
default: |
|
desc.type = 'answer'; |
|
break; |
|
} |
|
} |
|
if (desc.sdp || desc.type !== 'offer' && desc.type !== 'answer') { |
|
return nativeSetLocalDescription.apply(this, [desc]); |
|
} |
|
var func = desc.type === 'offer' ? this.createOffer : this.createAnswer; |
|
return func.apply(this).then(function (d) { |
|
return nativeSetLocalDescription.apply(_this, [d]); |
|
}); |
|
}; |
|
} |
|
|
|
},{"./utils":11,"sdp":12}],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 _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 _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } } |
|
|
|
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 = []; |
|
// WebIDL input coercion and validation |
|
var sendEncodings = arguments[1] && arguments[1].sendEncodings; |
|
if (sendEncodings === undefined) { |
|
sendEncodings = []; |
|
} |
|
sendEncodings = [].concat(_toConsumableArray(sendEncodings)); |
|
var shouldPerformCheck = sendEncodings.length > 0; |
|
if (shouldPerformCheck) { |
|
// If sendEncodings params are provided, validate grammar |
|
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 = sendEncodings; |
|
sender.sendEncodings = 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":11,"./getdisplaymedia":8,"./getusermedia":9}],8:[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); |
|
}; |
|
} |
|
|
|
},{}],9:[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":11}],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. |
|
*/ |
|
'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', { direction: 'recvonly' }); |
|
} |
|
|
|
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', { direction: 'recvonly' }); |
|
} |
|
} |
|
return origCreateOffer.apply(this, arguments); |
|
}; |
|
} |
|
|
|
function shimAudioContext(window) { |
|
if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) !== 'object' || window.AudioContext) { |
|
return; |
|
} |
|
window.AudioContext = window.webkitAudioContext; |
|
} |
|
|
|
},{"../utils":11}],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 |
|
}); |
|
|
|
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) { |
|
// 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 (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; |
|
} |
|
|
|
},{}],12:[function(require,module,exports){ |
|
/* eslint-env node */ |
|
'use strict'; |
|
|
|
// SDP helpers. |
|
|
|
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 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" |
|
// Input can be prefixed with a=. |
|
SDPUtils.parseCandidate = function (line) { |
|
var parts = void 0; |
|
// 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: { 1: 'rtp', 2: 'rtcp' }[parts[1]] || parts[1], |
|
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 compatibility. |
|
candidate.usernameFragment = parts[i + 1]; |
|
break; |
|
default: |
|
// extension handling, in particular ufrag. Don't overwrite. |
|
if (candidate[parts[i]] === undefined) { |
|
candidate[parts[i]] = parts[i + 1]; |
|
} |
|
break; |
|
} |
|
} |
|
return candidate; |
|
}; |
|
|
|
// Translates a candidate object into SDP candidate attribute. |
|
// This does not include the a= prefix! |
|
SDPUtils.writeCandidate = function (candidate) { |
|
var sdp = []; |
|
sdp.push(candidate.foundation); |
|
|
|
var component = candidate.component; |
|
if (component === 'rtp') { |
|
sdp.push(1); |
|
} else if (component === 'rtcp') { |
|
sdp.push(2); |
|
} else { |
|
sdp.push(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. |
|
// Sample input: |
|
// a=ice-options:foo bar |
|
SDPUtils.parseIceOptions = function (line) { |
|
return line.substr(14).split(' '); |
|
}; |
|
|
|
// Parses a 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; |
|
}; |
|
|
|
// Generates 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 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 an 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 a fmtp 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 = void 0; |
|
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 a fmtp 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] !== undefined) { |
|
params.push(param + '=' + codec.parameters[param]); |
|
} else { |
|
params.push(param); |
|
} |
|
}); |
|
line += 'a=fmtp:' + pt + ' ' + params.join(';') + '\r\n'; |
|
} |
|
return line; |
|
}; |
|
|
|
// Parses a 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 a 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; |
|
}; |
|
|
|
// Parse a ssrc-group line (see RFC 5576). Sample input: |
|
// a=ssrc-group:semantics 12 34 |
|
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); |
|
} |
|
}; |
|
|
|
// Parses a fingerprint line for DTLS-SRTP. |
|
SDPUtils.parseFingerprint = function (line) { |
|
var parts = line.substr(14).split(' '); |
|
return { |
|
algorithm: parts[0].toLowerCase(), // algorithm is case-sensitive in Edge. |
|
value: parts[1].toUpperCase() // the definition is upper-case in RFC 4572. |
|
}; |
|
}; |
|
|
|
// 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 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 parameters. |
|
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) { |
|
var sdp = 'a=ice-ufrag:' + params.usernameFragment + '\r\n' + 'a=ice-pwd:' + params.password + '\r\n'; |
|
if (params.iceLite) { |
|
sdp += 'a=ice-lite\r\n'; |
|
} |
|
return sdp; |
|
}; |
|
|
|
// 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:<pt> 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) { |
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var sdp = ''; |
|
|
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// Build the mline. |
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sdp += 'm=' + kind + ' '; |
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sdp += caps.codecs.length > 0 ? '9' : '0'; // reject if no codecs. |
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sdp += ' UDP/TLS/RTP/SAVPF '; |
|
sdp += caps.codecs.map(function (codec) { |
|
if (codec.preferredPayloadType !== undefined) { |
|
return codec.preferredPayloadType; |
|
} |
|
return codec.payloadType; |
|
}).join(' ') + '\r\n'; |
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|
|
sdp += 'c=IN IP4 0.0.0.0\r\n'; |
|
sdp += 'a=rtcp:9 IN IP4 0.0.0.0\r\n'; |
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|
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// Add a=rtpmap lines for each codec. Also fmtp and rtcp-fb. |
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caps.codecs.forEach(function (codec) { |
|
sdp += SDPUtils.writeRtpMap(codec); |
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sdp += SDPUtils.writeFmtp(codec); |
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sdp += SDPUtils.writeRtcpFb(codec); |
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}); |
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var maxptime = 0; |
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caps.codecs.forEach(function (codec) { |
|
if (codec.maxptime > maxptime) { |
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maxptime = codec.maxptime; |
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} |
|
}); |
|
if (maxptime > 0) { |
|
sdp += 'a=maxptime:' + maxptime + '\r\n'; |
|
} |
|
|
|
if (caps.headerExtensions) { |
|
caps.headerExtensions.forEach(function (extension) { |
|
sdp += SDPUtils.writeExtmap(extension); |
|
}); |
|
} |
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// FIXME: write fecMechanisms. |
|
return sdp; |
|
}; |
|
|
|
// Parses the SDP media section and returns an array of |
|
// RTCRtpEncodingParameters. |
|
SDPUtils.parseRtpEncodingParameters = function (mediaSection) { |
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var encodingParameters = []; |
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var description = SDPUtils.parseRtpParameters(mediaSection); |
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var hasRed = description.fecMechanisms.indexOf('RED') !== -1; |
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var hasUlpfec = description.fecMechanisms.indexOf('ULPFEC') !== -1; |
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|
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// filter a=ssrc:... cname:, ignore PlanB-msid |
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var ssrcs = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:').map(function (line) { |
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return SDPUtils.parseSsrcMedia(line); |
|
}).filter(function (parts) { |
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return parts.attribute === 'cname'; |
|
}); |
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var primarySsrc = ssrcs.length > 0 && ssrcs[0].ssrc; |
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var secondarySsrc = void 0; |
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|
|
var flows = SDPUtils.matchPrefix(mediaSection, 'a=ssrc-group:FID').map(function (line) { |
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var parts = line.substr(17).split(' '); |
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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 that 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 attrіbute. |
|
// Note that Edge does not support unmuxed RTCP. |
|
var mux = SDPUtils.matchPrefix(mediaSection, 'a=rtcp-mux'); |
|
rtcpParameters.mux = mux.length > 0; |
|
|
|
return rtcpParameters; |
|
}; |
|
|
|
SDPUtils.writeRtcpParameters = function (rtcpParameters) { |
|
var sdp = ''; |
|
if (rtcpParameters.reducedSize) { |
|
sdp += 'a=rtcp-rsize\r\n'; |
|
} |
|
if (rtcpParameters.mux) { |
|
sdp += 'a=rtcp-mux\r\n'; |
|
} |
|
if (rtcpParameters.ssrc !== undefined && rtcpParameters.cname) { |
|
sdp += 'a=ssrc:' + rtcpParameters.ssrc + ' cname:' + rtcpParameters.cname + '\r\n'; |
|
} |
|
return sdp; |
|
}; |
|
|
|
// parses either a=msid: or a=ssrc:... msid lines and returns |
|
// the id of the MediaStream and MediaStreamTrack. |
|
SDPUtils.parseMsid = function (mediaSection) { |
|
var parts = void 0; |
|
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 = void 0; |
|
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 = sctpMapLines[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 boiler 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 = void 0; |
|
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'; |
|
}; |
|
|
|
// 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 === 'undefined' ? 'undefined' : _typeof(module)) === 'object') { |
|
module.exports = SDPUtils; |
|
} |
|
},{}]},{},[1])(1) |
|
});
|
|
|