-(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 e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+(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){
/*
- * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
+ * 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';
+/* eslint-env node */
-var SDPUtils = require('sdp');
+'use strict';
-function writeMediaSection(transceiver, caps, type, stream, dtlsRole) {
- var sdp = SDPUtils.writeRtpDescription(transceiver.kind, caps);
+var _adapter_factory = require('./adapter_factory.js');
- // Map ICE parameters (ufrag, pwd) to SDP.
- sdp += SDPUtils.writeIceParameters(
- transceiver.iceGatherer.getLocalParameters());
+var adapter = (0, _adapter_factory.adapterFactory)({ window: window });
+module.exports = adapter; // this is the difference from adapter_core.
- // Map DTLS parameters to SDP.
- sdp += SDPUtils.writeDtlsParameters(
- transceiver.dtlsTransport.getLocalParameters(),
- type === 'offer' ? 'actpass' : dtlsRole || 'active');
+},{"./adapter_factory.js":2}],2:[function(require,module,exports){
+'use strict';
- sdp += 'a=mid:' + transceiver.mid + '\r\n';
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.adapterFactory = adapterFactory;
- if (transceiver.rtpSender && transceiver.rtpReceiver) {
- sdp += 'a=sendrecv\r\n';
- } else if (transceiver.rtpSender) {
- sdp += 'a=sendonly\r\n';
- } else if (transceiver.rtpReceiver) {
- sdp += 'a=recvonly\r\n';
- } else {
- sdp += 'a=inactive\r\n';
- }
+var _utils = require('./utils');
- if (transceiver.rtpSender) {
- // spec.
- var msid = 'msid:' + stream.id + ' ' +
- transceiver.rtpSender.track.id + '\r\n';
- sdp += 'a=' + msid;
+var utils = _interopRequireWildcard(_utils);
- // for Chrome.
- sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
- ' ' + msid;
- if (transceiver.sendEncodingParameters[0].rtx) {
- sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
- ' ' + msid;
- sdp += 'a=ssrc-group:FID ' +
- transceiver.sendEncodingParameters[0].ssrc + ' ' +
- transceiver.sendEncodingParameters[0].rtx.ssrc +
- '\r\n';
- }
- }
- // FIXME: this should be written by writeRtpDescription.
- sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
- ' cname:' + SDPUtils.localCName + '\r\n';
- if (transceiver.rtpSender && transceiver.sendEncodingParameters[0].rtx) {
- sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
- ' cname:' + SDPUtils.localCName + '\r\n';
- }
- return sdp;
-}
+var _chrome_shim = require('./chrome/chrome_shim');
-// Edge does not like
-// 1) stun: filtered after 14393 unless ?transport=udp is present
-// 2) turn: that does not have all of turn:host:port?transport=udp
-// 3) turn: with ipv6 addresses
-// 4) turn: occurring muliple times
-function filterIceServers(iceServers, edgeVersion) {
- var hasTurn = false;
- iceServers = JSON.parse(JSON.stringify(iceServers));
- return iceServers.filter(function(server) {
- if (server && (server.urls || server.url)) {
- var urls = server.urls || server.url;
- if (server.url && !server.urls) {
- console.warn('RTCIceServer.url is deprecated! Use urls instead.');
- }
- var isString = typeof urls === 'string';
- if (isString) {
- urls = [urls];
- }
- urls = urls.filter(function(url) {
- var validTurn = url.indexOf('turn:') === 0 &&
- url.indexOf('transport=udp') !== -1 &&
- url.indexOf('turn:[') === -1 &&
- !hasTurn;
+var chromeShim = _interopRequireWildcard(_chrome_shim);
- if (validTurn) {
- hasTurn = true;
- return true;
- }
- return url.indexOf('stun:') === 0 && edgeVersion >= 14393 &&
- url.indexOf('?transport=udp') === -1;
- });
+var _edge_shim = require('./edge/edge_shim');
- delete server.url;
- server.urls = isString ? urls[0] : urls;
- return !!urls.length;
- }
- });
-}
+var edgeShim = _interopRequireWildcard(_edge_shim);
-// Determines the intersection of local and remote capabilities.
-function getCommonCapabilities(localCapabilities, remoteCapabilities) {
- var commonCapabilities = {
- codecs: [],
- headerExtensions: [],
- fecMechanisms: []
- };
+var _firefox_shim = require('./firefox/firefox_shim');
- var findCodecByPayloadType = function(pt, codecs) {
- pt = parseInt(pt, 10);
- for (var i = 0; i < codecs.length; i++) {
- if (codecs[i].payloadType === pt ||
- codecs[i].preferredPayloadType === pt) {
- return codecs[i];
- }
- }
- };
+var firefoxShim = _interopRequireWildcard(_firefox_shim);
- var rtxCapabilityMatches = function(lRtx, rRtx, lCodecs, rCodecs) {
- var lCodec = findCodecByPayloadType(lRtx.parameters.apt, lCodecs);
- var rCodec = findCodecByPayloadType(rRtx.parameters.apt, rCodecs);
- return lCodec && rCodec &&
- lCodec.name.toLowerCase() === rCodec.name.toLowerCase();
- };
+var _safari_shim = require('./safari/safari_shim');
- localCapabilities.codecs.forEach(function(lCodec) {
- for (var i = 0; i < remoteCapabilities.codecs.length; i++) {
- var rCodec = remoteCapabilities.codecs[i];
- if (lCodec.name.toLowerCase() === rCodec.name.toLowerCase() &&
- lCodec.clockRate === rCodec.clockRate) {
- if (lCodec.name.toLowerCase() === 'rtx' &&
- lCodec.parameters && rCodec.parameters.apt) {
- // for RTX we need to find the local rtx that has a apt
- // which points to the same local codec as the remote one.
- if (!rtxCapabilityMatches(lCodec, rCodec,
- localCapabilities.codecs, remoteCapabilities.codecs)) {
- continue;
- }
- }
- rCodec = JSON.parse(JSON.stringify(rCodec)); // deepcopy
- // number of channels is the highest common number of channels
- rCodec.numChannels = Math.min(lCodec.numChannels,
- rCodec.numChannels);
- // push rCodec so we reply with offerer payload type
- commonCapabilities.codecs.push(rCodec);
+var safariShim = _interopRequireWildcard(_safari_shim);
- // determine common feedback mechanisms
- rCodec.rtcpFeedback = rCodec.rtcpFeedback.filter(function(fb) {
- for (var j = 0; j < lCodec.rtcpFeedback.length; j++) {
- if (lCodec.rtcpFeedback[j].type === fb.type &&
- lCodec.rtcpFeedback[j].parameter === fb.parameter) {
- return true;
- }
- }
- return false;
- });
- // FIXME: also need to determine .parameters
- // see https://github.com/openpeer/ortc/issues/569
- break;
- }
- }
- });
+var _common_shim = require('./common_shim');
- localCapabilities.headerExtensions.forEach(function(lHeaderExtension) {
- for (var i = 0; i < remoteCapabilities.headerExtensions.length;
- i++) {
- var rHeaderExtension = remoteCapabilities.headerExtensions[i];
- if (lHeaderExtension.uri === rHeaderExtension.uri) {
- commonCapabilities.headerExtensions.push(rHeaderExtension);
- break;
- }
- }
- });
+var commonShim = _interopRequireWildcard(_common_shim);
- // FIXME: fecMechanisms
- return commonCapabilities;
-}
+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; } }
-// is action=setLocalDescription with type allowed in signalingState
-function isActionAllowedInSignalingState(action, type, signalingState) {
- return {
- offer: {
- setLocalDescription: ['stable', 'have-local-offer'],
- setRemoteDescription: ['stable', 'have-remote-offer']
- },
- answer: {
- setLocalDescription: ['have-remote-offer', 'have-local-pranswer'],
- setRemoteDescription: ['have-local-offer', 'have-remote-pranswer']
- }
- }[type][action].indexOf(signalingState) !== -1;
-}
+// Shimming starts here.
+/*
+ * 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.
+ */
+function adapterFactory() {
+ var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
+ window = _ref.window;
-function maybeAddCandidate(iceTransport, candidate) {
- // Edge's internal representation adds some fields therefore
- // not all fieldѕ are taken into account.
- var alreadyAdded = iceTransport.getRemoteCandidates()
- .find(function(remoteCandidate) {
- return candidate.foundation === remoteCandidate.foundation &&
- candidate.ip === remoteCandidate.ip &&
- candidate.port === remoteCandidate.port &&
- candidate.priority === remoteCandidate.priority &&
- candidate.protocol === remoteCandidate.protocol &&
- candidate.type === remoteCandidate.type;
- });
- if (!alreadyAdded) {
- iceTransport.addRemoteCandidate(candidate);
- }
- return !alreadyAdded;
-}
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {
+ shimChrome: true,
+ shimFirefox: true,
+ shimEdge: true,
+ shimSafari: true
+ };
+ // Utils.
+ var logging = utils.log;
+ var browserDetails = utils.detectBrowser(window);
-// https://w3c.github.io/mediacapture-main/#mediastream
-// Helper function to add the track to the stream and
-// dispatch the event ourselves.
-function addTrackToStreamAndFireEvent(track, stream) {
- stream.addTrack(track);
- var e = new Event('addtrack'); // TODO: MediaStreamTrackEvent
- e.track = track;
- stream.dispatchEvent(e);
-}
+ var adapter = {
+ browserDetails: browserDetails,
+ commonShim: commonShim,
+ extractVersion: utils.extractVersion,
+ disableLog: utils.disableLog,
+ disableWarnings: utils.disableWarnings
+ };
-function removeTrackFromStreamAndFireEvent(track, stream) {
- stream.removeTrack(track);
- var e = new Event('removetrack'); // TODO: MediaStreamTrackEvent
- e.track = track;
- stream.dispatchEvent(e);
-}
+ // Shim browser if found.
+ switch (browserDetails.browser) {
+ case 'chrome':
+ if (!chromeShim || !chromeShim.shimPeerConnection || !options.shimChrome) {
+ logging('Chrome shim is not included in this adapter release.');
+ return adapter;
+ }
+ logging('adapter.js shimming chrome.');
+ // Export to the adapter global object visible in the browser.
+ adapter.browserShim = chromeShim;
-function fireAddTrack(pc, track, receiver, streams) {
- var trackEvent = new Event('track');
- trackEvent.track = track;
- trackEvent.receiver = receiver;
- trackEvent.transceiver = {receiver: receiver};
- trackEvent.streams = streams;
- window.setTimeout(function() {
- pc._dispatchEvent('track', trackEvent);
- });
-}
+ chromeShim.shimGetUserMedia(window);
+ chromeShim.shimMediaStream(window);
+ chromeShim.shimPeerConnection(window);
+ chromeShim.shimOnTrack(window);
+ chromeShim.shimAddTrackRemoveTrack(window);
+ chromeShim.shimGetSendersWithDtmf(window);
+ chromeShim.shimSenderReceiverGetStats(window);
+ chromeShim.fixNegotiationNeeded(window);
-function makeError(name, description) {
- var e = new Error(description);
- e.name = name;
- return e;
-}
+ commonShim.shimRTCIceCandidate(window);
+ commonShim.shimConnectionState(window);
+ commonShim.shimMaxMessageSize(window);
+ commonShim.shimSendThrowTypeError(window);
+ commonShim.removeAllowExtmapMixed(window);
+ break;
+ case 'firefox':
+ if (!firefoxShim || !firefoxShim.shimPeerConnection || !options.shimFirefox) {
+ logging('Firefox shim is not included in this adapter release.');
+ return adapter;
+ }
+ logging('adapter.js shimming firefox.');
+ // Export to the adapter global object visible in the browser.
+ adapter.browserShim = firefoxShim;
-module.exports = function(window, edgeVersion) {
- var RTCPeerConnection = function(config) {
- var pc = this;
+ firefoxShim.shimGetUserMedia(window);
+ firefoxShim.shimPeerConnection(window);
+ firefoxShim.shimOnTrack(window);
+ firefoxShim.shimRemoveStream(window);
+ firefoxShim.shimSenderGetStats(window);
+ firefoxShim.shimReceiverGetStats(window);
+ firefoxShim.shimRTCDataChannel(window);
- var _eventTarget = document.createDocumentFragment();
- ['addEventListener', 'removeEventListener', 'dispatchEvent']
- .forEach(function(method) {
- pc[method] = _eventTarget[method].bind(_eventTarget);
- });
+ commonShim.shimRTCIceCandidate(window);
+ commonShim.shimConnectionState(window);
+ commonShim.shimMaxMessageSize(window);
+ commonShim.shimSendThrowTypeError(window);
+ break;
+ case 'edge':
+ if (!edgeShim || !edgeShim.shimPeerConnection || !options.shimEdge) {
+ logging('MS edge shim is not included in this adapter release.');
+ return adapter;
+ }
+ logging('adapter.js shimming edge.');
+ // Export to the adapter global object visible in the browser.
+ adapter.browserShim = edgeShim;
- this.canTrickleIceCandidates = null;
+ edgeShim.shimGetUserMedia(window);
+ edgeShim.shimGetDisplayMedia(window);
+ edgeShim.shimPeerConnection(window);
+ edgeShim.shimReplaceTrack(window);
- this.needNegotiation = false;
+ // the edge shim implements the full RTCIceCandidate object.
- this.localStreams = [];
- this.remoteStreams = [];
+ commonShim.shimMaxMessageSize(window);
+ commonShim.shimSendThrowTypeError(window);
+ break;
+ case 'safari':
+ if (!safariShim || !options.shimSafari) {
+ logging('Safari shim is not included in this adapter release.');
+ return adapter;
+ }
+ logging('adapter.js shimming safari.');
+ // Export to the adapter global object visible in the browser.
+ adapter.browserShim = safariShim;
- this.localDescription = null;
- this.remoteDescription = null;
+ safariShim.shimRTCIceServerUrls(window);
+ safariShim.shimCreateOfferLegacy(window);
+ safariShim.shimCallbacksAPI(window);
+ safariShim.shimLocalStreamsAPI(window);
+ safariShim.shimRemoteStreamsAPI(window);
+ safariShim.shimTrackEventTransceiver(window);
+ safariShim.shimGetUserMedia(window);
- this.signalingState = 'stable';
- this.iceConnectionState = 'new';
- this.iceGatheringState = 'new';
+ commonShim.shimRTCIceCandidate(window);
+ commonShim.shimMaxMessageSize(window);
+ commonShim.shimSendThrowTypeError(window);
+ commonShim.removeAllowExtmapMixed(window);
+ break;
+ default:
+ logging('Unsupported browser!');
+ break;
+ }
- config = JSON.parse(JSON.stringify(config || {}));
+ return adapter;
+}
- this.usingBundle = config.bundlePolicy === 'max-bundle';
- if (config.rtcpMuxPolicy === 'negotiate') {
- throw(makeError('NotSupportedError',
- 'rtcpMuxPolicy \'negotiate\' is not supported'));
- } else if (!config.rtcpMuxPolicy) {
- config.rtcpMuxPolicy = 'require';
- }
+// Browser shims.
- switch (config.iceTransportPolicy) {
- case 'all':
- case 'relay':
- break;
- default:
- config.iceTransportPolicy = 'all';
- break;
- }
+},{"./chrome/chrome_shim":3,"./common_shim":6,"./edge/edge_shim":7,"./firefox/firefox_shim":11,"./safari/safari_shim":14,"./utils":15}],3:[function(require,module,exports){
- switch (config.bundlePolicy) {
- case 'balanced':
- case 'max-compat':
- case 'max-bundle':
- break;
- default:
- config.bundlePolicy = 'balanced';
- break;
- }
+/*
+ * 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';
- config.iceServers = filterIceServers(config.iceServers || [], edgeVersion);
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.shimGetDisplayMedia = exports.shimGetUserMedia = undefined;
- this._iceGatherers = [];
- if (config.iceCandidatePoolSize) {
- for (var i = config.iceCandidatePoolSize; i > 0; i--) {
- this._iceGatherers = new window.RTCIceGatherer({
- iceServers: config.iceServers,
- gatherPolicy: config.iceTransportPolicy
- });
- }
- } else {
- config.iceCandidatePoolSize = 0;
- }
+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; };
- this._config = config;
+var _getusermedia = require('./getusermedia');
- // per-track iceGathers, iceTransports, dtlsTransports, rtpSenders, ...
- // everything that is needed to describe a SDP m-line.
- this.transceivers = [];
+Object.defineProperty(exports, 'shimGetUserMedia', {
+ enumerable: true,
+ get: function get() {
+ return _getusermedia.shimGetUserMedia;
+ }
+});
- this._sdpSessionId = SDPUtils.generateSessionId();
- this._sdpSessionVersion = 0;
+var _getdisplaymedia = require('./getdisplaymedia');
- this._dtlsRole = undefined; // role for a=setup to use in answers.
+Object.defineProperty(exports, 'shimGetDisplayMedia', {
+ enumerable: true,
+ get: function get() {
+ return _getdisplaymedia.shimGetDisplayMedia;
+ }
+});
+exports.shimMediaStream = shimMediaStream;
+exports.shimOnTrack = shimOnTrack;
+exports.shimGetSendersWithDtmf = shimGetSendersWithDtmf;
+exports.shimSenderReceiverGetStats = shimSenderReceiverGetStats;
+exports.shimAddTrackRemoveTrackWithNative = shimAddTrackRemoveTrackWithNative;
+exports.shimAddTrackRemoveTrack = shimAddTrackRemoveTrack;
+exports.shimPeerConnection = shimPeerConnection;
+exports.fixNegotiationNeeded = fixNegotiationNeeded;
- this._isClosed = false;
- };
+var _utils = require('../utils.js');
- // set up event handlers on prototype
- RTCPeerConnection.prototype.onicecandidate = null;
- RTCPeerConnection.prototype.onaddstream = null;
- RTCPeerConnection.prototype.ontrack = null;
- RTCPeerConnection.prototype.onremovestream = null;
- RTCPeerConnection.prototype.onsignalingstatechange = null;
- RTCPeerConnection.prototype.oniceconnectionstatechange = null;
- RTCPeerConnection.prototype.onicegatheringstatechange = null;
- RTCPeerConnection.prototype.onnegotiationneeded = null;
- RTCPeerConnection.prototype.ondatachannel = null;
+var utils = _interopRequireWildcard(_utils);
- RTCPeerConnection.prototype._dispatchEvent = function(name, event) {
- if (this._isClosed) {
- return;
- }
- this.dispatchEvent(event);
- if (typeof this['on' + name] === 'function') {
- this['on' + name](event);
+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; } }
+
+/* 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);
+ });
}
- };
+ });
+}
- RTCPeerConnection.prototype._emitGatheringStateChange = function() {
- var event = new Event('icegatheringstatechange');
- this._dispatchEvent('icegatheringstatechange', event);
- };
+/* 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;
+}
- RTCPeerConnection.prototype.getConfiguration = function() {
- return this._config;
- };
+function shimMediaStream(window) {
+ window.MediaStream = window.MediaStream || window.webkitMediaStream;
+}
- RTCPeerConnection.prototype.getLocalStreams = function() {
- return this.localStreams;
- };
+function shimOnTrack(window) {
+ if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCPeerConnection && !('ontrack' in window.RTCPeerConnection.prototype)) {
+ Object.defineProperty(window.RTCPeerConnection.prototype, 'ontrack', {
+ get: function get() {
+ return this._ontrack;
+ },
+ set: function set(f) {
+ if (this._ontrack) {
+ this.removeEventListener('track', this._ontrack);
+ }
+ this.addEventListener('track', this._ontrack = f);
+ },
- RTCPeerConnection.prototype.getRemoteStreams = function() {
- return this.remoteStreams;
- };
+ enumerable: true,
+ configurable: true
+ });
+ var origSetRemoteDescription = window.RTCPeerConnection.prototype.setRemoteDescription;
+ window.RTCPeerConnection.prototype.setRemoteDescription = function () {
+ var _this = this;
+
+ if (!this._ontrackpoly) {
+ this._ontrackpoly = function (e) {
+ // onaddstream does not fire when a track is added to an existing
+ // stream. But stream.onaddtrack is implemented so we use that.
+ e.stream.addEventListener('addtrack', function (te) {
+ var receiver = void 0;
+ if (window.RTCPeerConnection.prototype.getReceivers) {
+ receiver = _this.getReceivers().find(function (r) {
+ return r.track && r.track.id === te.track.id;
+ });
+ } else {
+ receiver = { track: te.track };
+ }
- // internal helper to create a transceiver object.
- // (whih is not yet the same as the WebRTC 1.0 transceiver)
- RTCPeerConnection.prototype._createTransceiver = function(kind) {
- var hasBundleTransport = this.transceivers.length > 0;
- var transceiver = {
- track: null,
- iceGatherer: null,
- iceTransport: null,
- dtlsTransport: null,
- localCapabilities: null,
- remoteCapabilities: null,
- rtpSender: null,
- rtpReceiver: null,
- kind: kind,
- mid: null,
- sendEncodingParameters: null,
- recvEncodingParameters: null,
- stream: null,
- associatedRemoteMediaStreams: [],
- wantReceive: true
+ var event = new Event('track');
+ event.track = te.track;
+ event.receiver = receiver;
+ event.transceiver = { receiver: receiver };
+ event.streams = [e.stream];
+ _this.dispatchEvent(event);
+ });
+ e.stream.getTracks().forEach(function (track) {
+ var receiver = void 0;
+ if (window.RTCPeerConnection.prototype.getReceivers) {
+ receiver = _this.getReceivers().find(function (r) {
+ return r.track && r.track.id === track.id;
+ });
+ } else {
+ receiver = { track: track };
+ }
+ var event = new Event('track');
+ event.track = track;
+ event.receiver = receiver;
+ event.transceiver = { receiver: receiver };
+ event.streams = [e.stream];
+ _this.dispatchEvent(event);
+ });
+ };
+ this.addEventListener('addstream', this._ontrackpoly);
+ }
+ return origSetRemoteDescription.apply(this, arguments);
};
- if (this.usingBundle && hasBundleTransport) {
- transceiver.iceTransport = this.transceivers[0].iceTransport;
- transceiver.dtlsTransport = this.transceivers[0].dtlsTransport;
- } else {
- var transports = this._createIceAndDtlsTransports();
- transceiver.iceTransport = transports.iceTransport;
- transceiver.dtlsTransport = transports.dtlsTransport;
- }
- this.transceivers.push(transceiver);
- return transceiver;
- };
-
- RTCPeerConnection.prototype.addTrack = function(track, stream) {
- var alreadyExists = this.transceivers.find(function(s) {
- return s.track === track;
+ } else {
+ // even if RTCRtpTransceiver is in window, it is only used and
+ // emitted in unified-plan. Unfortunately this means we need
+ // to unconditionally wrap the event.
+ utils.wrapPeerConnectionEvent(window, 'track', function (e) {
+ if (!e.transceiver) {
+ Object.defineProperty(e, 'transceiver', { value: { receiver: e.receiver } });
+ }
+ return e;
});
+ }
+}
- if (alreadyExists) {
- throw makeError('InvalidAccessError', 'Track already exists.');
- }
+function shimGetSendersWithDtmf(window) {
+ // Overrides addTrack/removeTrack, depends on shimAddTrackRemoveTrack.
+ if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCPeerConnection && !('getSenders' in window.RTCPeerConnection.prototype) && 'createDTMFSender' in window.RTCPeerConnection.prototype) {
+ var shimSenderWithDtmf = function shimSenderWithDtmf(pc, track) {
+ return {
+ track: track,
+ get dtmf() {
+ if (this._dtmf === undefined) {
+ if (track.kind === 'audio') {
+ this._dtmf = pc.createDTMFSender(track);
+ } else {
+ this._dtmf = null;
+ }
+ }
+ return this._dtmf;
+ },
+ _pc: pc
+ };
+ };
- if (this.signalingState === 'closed') {
- throw makeError('InvalidStateError',
- 'Attempted to call addTrack on a closed peerconnection.');
- }
+ // augment addTrack when getSenders is not available.
+ if (!window.RTCPeerConnection.prototype.getSenders) {
+ window.RTCPeerConnection.prototype.getSenders = function () {
+ this._senders = this._senders || [];
+ return this._senders.slice(); // return a copy of the internal state.
+ };
+ var origAddTrack = window.RTCPeerConnection.prototype.addTrack;
+ window.RTCPeerConnection.prototype.addTrack = function (track, stream) {
+ var sender = origAddTrack.apply(this, arguments);
+ if (!sender) {
+ sender = shimSenderWithDtmf(this, track);
+ this._senders.push(sender);
+ }
+ return sender;
+ };
- var transceiver;
- for (var i = 0; i < this.transceivers.length; i++) {
- if (!this.transceivers[i].track &&
- this.transceivers[i].kind === track.kind) {
- transceiver = this.transceivers[i];
- }
- }
- if (!transceiver) {
- transceiver = this._createTransceiver(track.kind);
+ var origRemoveTrack = window.RTCPeerConnection.prototype.removeTrack;
+ window.RTCPeerConnection.prototype.removeTrack = function (sender) {
+ origRemoveTrack.apply(this, arguments);
+ var idx = this._senders.indexOf(sender);
+ if (idx !== -1) {
+ this._senders.splice(idx, 1);
+ }
+ };
}
+ var origAddStream = window.RTCPeerConnection.prototype.addStream;
+ window.RTCPeerConnection.prototype.addStream = function (stream) {
+ var _this2 = this;
- this._maybeFireNegotiationNeeded();
+ this._senders = this._senders || [];
+ origAddStream.apply(this, [stream]);
+ stream.getTracks().forEach(function (track) {
+ _this2._senders.push(shimSenderWithDtmf(_this2, track));
+ });
+ };
- if (this.localStreams.indexOf(stream) === -1) {
- this.localStreams.push(stream);
- }
+ var origRemoveStream = window.RTCPeerConnection.prototype.removeStream;
+ window.RTCPeerConnection.prototype.removeStream = function (stream) {
+ var _this3 = this;
- transceiver.track = track;
- transceiver.stream = stream;
- transceiver.rtpSender = new window.RTCRtpSender(track,
- transceiver.dtlsTransport);
- return transceiver.rtpSender;
- };
+ this._senders = this._senders || [];
+ origRemoveStream.apply(this, [stream]);
- RTCPeerConnection.prototype.addStream = function(stream) {
- var pc = this;
- if (edgeVersion >= 15025) {
- stream.getTracks().forEach(function(track) {
- pc.addTrack(track, stream);
- });
- } else {
- // Clone is necessary for local demos mostly, attaching directly
- // to two different senders does not work (build 10547).
- // Fixed in 15025 (or earlier)
- var clonedStream = stream.clone();
- stream.getTracks().forEach(function(track, idx) {
- var clonedTrack = clonedStream.getTracks()[idx];
- track.addEventListener('enabled', function(event) {
- clonedTrack.enabled = event.enabled;
+ stream.getTracks().forEach(function (track) {
+ var sender = _this3._senders.find(function (s) {
+ return s.track === track;
});
+ if (sender) {
+ // remove sender
+ _this3._senders.splice(_this3._senders.indexOf(sender), 1);
+ }
});
- clonedStream.getTracks().forEach(function(track) {
- pc.addTrack(track, clonedStream);
+ };
+ } else if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCPeerConnection && 'getSenders' in window.RTCPeerConnection.prototype && 'createDTMFSender' in window.RTCPeerConnection.prototype && window.RTCRtpSender && !('dtmf' in window.RTCRtpSender.prototype)) {
+ var origGetSenders = window.RTCPeerConnection.prototype.getSenders;
+ window.RTCPeerConnection.prototype.getSenders = function () {
+ var _this4 = this;
+
+ var senders = origGetSenders.apply(this, []);
+ senders.forEach(function (sender) {
+ return sender._pc = _this4;
});
+ return senders;
+ };
+
+ Object.defineProperty(window.RTCRtpSender.prototype, 'dtmf', {
+ get: function get() {
+ if (this._dtmf === undefined) {
+ if (this.track.kind === 'audio') {
+ this._dtmf = this._pc.createDTMFSender(this.track);
+ } else {
+ this._dtmf = null;
+ }
+ }
+ return this._dtmf;
+ }
+ });
+ }
+}
+
+function 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 () {
+ var _this5 = this;
+
+ var senders = origGetSenders.apply(this, []);
+ senders.forEach(function (sender) {
+ return sender._pc = _this5;
+ });
+ return senders;
+ };
}
- };
- RTCPeerConnection.prototype.removeTrack = function(sender) {
- if (!(sender instanceof window.RTCRtpSender)) {
- throw new TypeError('Argument 1 of RTCPeerConnection.removeTrack ' +
- 'does not implement interface RTCRtpSender.');
+ var origAddTrack = window.RTCPeerConnection.prototype.addTrack;
+ if (origAddTrack) {
+ window.RTCPeerConnection.prototype.addTrack = function () {
+ var sender = origAddTrack.apply(this, arguments);
+ sender._pc = this;
+ return sender;
+ };
}
+ window.RTCRtpSender.prototype.getStats = function () {
+ 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.
+ */
+ filterStats(result, sender.track, true)
+ );
+ });
+ };
+ }
- var transceiver = this.transceivers.find(function(t) {
- return t.rtpSender === sender;
+ // shim receiver stats.
+ if (!('getStats' in window.RTCRtpReceiver.prototype)) {
+ var origGetReceivers = window.RTCPeerConnection.prototype.getReceivers;
+ if (origGetReceivers) {
+ window.RTCPeerConnection.prototype.getReceivers = function () {
+ var _this6 = this;
+
+ var receivers = origGetReceivers.apply(this, []);
+ receivers.forEach(function (receiver) {
+ return receiver._pc = _this6;
+ });
+ return receivers;
+ };
+ }
+ utils.wrapPeerConnectionEvent(window, 'track', function (e) {
+ e.receiver._pc = e.srcElement;
+ return e;
});
+ window.RTCRtpReceiver.prototype.getStats = function () {
+ var receiver = this;
+ return this._pc.getStats().then(function (result) {
+ return filterStats(result, receiver.track, false);
+ });
+ };
+ }
- if (!transceiver) {
- throw makeError('InvalidAccessError',
- 'Sender was not created by this connection.');
+ 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 () {
+ 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'));
}
- var stream = transceiver.stream;
+ return origGetStats.apply(this, arguments);
+ };
+}
- transceiver.rtpSender.stop();
- transceiver.rtpSender = null;
- transceiver.track = null;
- transceiver.stream = null;
+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 () {
+ var _this7 = this;
- // remove the stream from the set of local streams
- var localStreams = this.transceivers.map(function(t) {
- return t.stream;
+ this._shimmedLocalStreams = this._shimmedLocalStreams || {};
+ return Object.keys(this._shimmedLocalStreams).map(function (streamId) {
+ return _this7._shimmedLocalStreams[streamId][0];
});
- if (localStreams.indexOf(stream) === -1 &&
- this.localStreams.indexOf(stream) > -1) {
- this.localStreams.splice(this.localStreams.indexOf(stream), 1);
+ };
+
+ var origAddTrack = window.RTCPeerConnection.prototype.addTrack;
+ window.RTCPeerConnection.prototype.addTrack = function (track, stream) {
+ if (!stream) {
+ return origAddTrack.apply(this, arguments);
}
+ this._shimmedLocalStreams = this._shimmedLocalStreams || {};
- this._maybeFireNegotiationNeeded();
+ 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;
};
- RTCPeerConnection.prototype.removeStream = function(stream) {
- var pc = this;
- stream.getTracks().forEach(function(track) {
- var sender = pc.getSenders().find(function(s) {
+ var origAddStream = window.RTCPeerConnection.prototype.addStream;
+ window.RTCPeerConnection.prototype.addStream = function (stream) {
+ var _this8 = this;
+
+ this._shimmedLocalStreams = this._shimmedLocalStreams || {};
+
+ stream.getTracks().forEach(function (track) {
+ var alreadyExists = _this8.getSenders().find(function (s) {
return s.track === track;
});
- if (sender) {
- pc.removeTrack(sender);
+ 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);
};
- RTCPeerConnection.prototype.getSenders = function() {
- return this.transceivers.filter(function(transceiver) {
- return !!transceiver.rtpSender;
- })
- .map(function(transceiver) {
- return transceiver.rtpSender;
+ var origRemoveStream = window.RTCPeerConnection.prototype.removeStream;
+ window.RTCPeerConnection.prototype.removeStream = function (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 (sender) {
+ var _this9 = this;
+
+ this._shimmedLocalStreams = this._shimmedLocalStreams || {};
+ if (sender) {
+ Object.keys(this._shimmedLocalStreams).forEach(function (streamId) {
+ var idx = _this9._shimmedLocalStreams[streamId].indexOf(sender);
+ if (idx !== -1) {
+ _this9._shimmedLocalStreams[streamId].splice(idx, 1);
+ }
+ if (_this9._shimmedLocalStreams[streamId].length === 1) {
+ delete _this9._shimmedLocalStreams[streamId];
+ }
+ });
+ }
+ return origRemoveTrack.apply(this, arguments);
+ };
+}
+
+function shimAddTrackRemoveTrack(window) {
+ if (!window.RTCPeerConnection) {
+ return;
+ }
+ var browserDetails = utils.detectBrowser(window);
+ // 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 () {
+ var _this10 = this;
+
+ var nativeStreams = origGetLocalStreams.apply(this);
+ this._reverseStreams = this._reverseStreams || {};
+ return nativeStreams.map(function (stream) {
+ return _this10._reverseStreams[stream.id];
});
};
- RTCPeerConnection.prototype.getReceivers = function() {
- return this.transceivers.filter(function(transceiver) {
- return !!transceiver.rtpReceiver;
- })
- .map(function(transceiver) {
- return transceiver.rtpReceiver;
+ var origAddStream = window.RTCPeerConnection.prototype.addStream;
+ window.RTCPeerConnection.prototype.addStream = function (stream) {
+ var _this11 = this;
+
+ this._streams = this._streams || {};
+ this._reverseStreams = this._reverseStreams || {};
+
+ stream.getTracks().forEach(function (track) {
+ var alreadyExists = _this11.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 (stream) {
+ this._streams = this._streams || {};
+ this._reverseStreams = this._reverseStreams || {};
- RTCPeerConnection.prototype._createIceGatherer = function(sdpMLineIndex,
- usingBundle) {
- var pc = this;
- if (usingBundle && sdpMLineIndex > 0) {
- return this.transceivers[0].iceGatherer;
- } else if (this._iceGatherers.length) {
- return this._iceGatherers.shift();
+ 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 (track, stream) {
+ var _this12 = this;
+
+ if (this.signalingState === 'closed') {
+ throw new DOMException('The RTCPeerConnection\'s signalingState is \'closed\'.', 'InvalidStateError');
}
- var iceGatherer = new window.RTCIceGatherer({
- iceServers: this._config.iceServers,
- gatherPolicy: this._config.iceTransportPolicy
+ 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;
});
- Object.defineProperty(iceGatherer, 'state',
- {value: 'new', writable: true}
- );
+ if (alreadyExists) {
+ throw new DOMException('Track already exists.', 'InvalidAccessError');
+ }
- this.transceivers[sdpMLineIndex].candidates = [];
- this.transceivers[sdpMLineIndex].bufferCandidates = function(event) {
- var end = !event.candidate || Object.keys(event.candidate).length === 0;
- // polyfill since RTCIceGatherer.state is not implemented in
- // Edge 10547 yet.
- iceGatherer.state = end ? 'completed' : 'gathering';
- if (pc.transceivers[sdpMLineIndex].candidates !== null) {
- pc.transceivers[sdpMLineIndex].candidates.push(event.candidate);
+ 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 () {
+ _this12.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];
+ window.RTCPeerConnection.prototype[method] = function () {
+ var _this13 = this;
+
+ var args = arguments;
+ var isLegacyCall = arguments.length && typeof arguments[0] === 'function';
+ if (isLegacyCall) {
+ return nativeMethod.apply(this, [function (description) {
+ var desc = replaceInternalStreamId(_this13, 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(_this13, description);
+ });
};
- iceGatherer.addEventListener('localcandidate',
- this.transceivers[sdpMLineIndex].bufferCandidates);
- return iceGatherer;
- };
+ });
- // start gathering from an RTCIceGatherer.
- RTCPeerConnection.prototype._gather = function(mid, sdpMLineIndex) {
- var pc = this;
- var iceGatherer = this.transceivers[sdpMLineIndex].iceGatherer;
- if (iceGatherer.onlocalcandidate) {
- return;
+ var origSetLocalDescription = window.RTCPeerConnection.prototype.setLocalDescription;
+ window.RTCPeerConnection.prototype.setLocalDescription = function () {
+ if (!arguments.length || !arguments[0].type) {
+ return origSetLocalDescription.apply(this, arguments);
}
- var candidates = this.transceivers[sdpMLineIndex].candidates;
- this.transceivers[sdpMLineIndex].candidates = null;
- iceGatherer.removeEventListener('localcandidate',
- this.transceivers[sdpMLineIndex].bufferCandidates);
- iceGatherer.onlocalcandidate = function(evt) {
- if (pc.usingBundle && sdpMLineIndex > 0) {
- // if we know that we use bundle we can drop candidates with
- // ѕdpMLineIndex > 0. If we don't do this then our state gets
- // confused since we dispose the extra ice gatherer.
- return;
+ 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;
}
- var event = new Event('icecandidate');
- event.candidate = {sdpMid: mid, sdpMLineIndex: sdpMLineIndex};
+ return replaceInternalStreamId(this, description);
+ }
+ });
- var cand = evt.candidate;
- // Edge emits an empty object for RTCIceCandidateComplete‥
- var end = !cand || Object.keys(cand).length === 0;
- if (end) {
- // polyfill since RTCIceGatherer.state is not implemented in
- // Edge 10547 yet.
- if (iceGatherer.state === 'new' || iceGatherer.state === 'gathering') {
- iceGatherer.state = 'completed';
- }
- } else {
- if (iceGatherer.state === 'new') {
- iceGatherer.state = 'gathering';
- }
- // RTCIceCandidate doesn't have a component, needs to be added
- cand.component = 1;
- event.candidate.candidate = SDPUtils.writeCandidate(cand);
+ window.RTCPeerConnection.prototype.removeTrack = function (sender) {
+ var _this14 = 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 = _this14._streams[streamid].getTracks().find(function (track) {
+ return sender.track === track;
+ });
+ if (hasTrack) {
+ stream = _this14._streams[streamid];
}
+ });
- // update local description.
- var sections = SDPUtils.splitSections(pc.localDescription.sdp);
- if (!end) {
- sections[event.candidate.sdpMLineIndex + 1] +=
- 'a=' + event.candidate.candidate + '\r\n';
+ 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 {
- sections[event.candidate.sdpMLineIndex + 1] +=
- 'a=end-of-candidates\r\n';
+ // relying on the same odd chrome behaviour as above.
+ stream.removeTrack(sender.track);
}
- pc.localDescription.sdp = sections.join('');
- var complete = pc.transceivers.every(function(transceiver) {
- return transceiver.iceGatherer &&
- transceiver.iceGatherer.state === 'completed';
- });
+ this.dispatchEvent(new Event('negotiationneeded'));
+ }
+ };
+}
- if (pc.iceGatheringState !== 'gathering') {
- pc.iceGatheringState = 'gathering';
- pc._emitGatheringStateChange();
- }
+function shimPeerConnection(window) {
+ if (!window.RTCPeerConnection && window.webkitRTCPeerConnection) {
+ // very basic support for old versions.
+ window.RTCPeerConnection = window.webkitRTCPeerConnection;
+ }
+ if (!window.RTCPeerConnection) {
+ return;
+ }
- // Emit candidate. Also emit null candidate when all gatherers are
- // complete.
- if (!end) {
- pc._dispatchEvent('icecandidate', event);
- }
- if (complete) {
- pc._dispatchEvent('icecandidate', new Event('icecandidate'));
- pc.iceGatheringState = 'complete';
- pc._emitGatheringStateChange();
- }
- };
+ var origGetStats = window.RTCPeerConnection.prototype.getStats;
+ window.RTCPeerConnection.prototype.getStats = function (selector, successCallback, errorCallback) {
+ var _this15 = this;
- // emit already gathered candidates.
- window.setTimeout(function() {
- candidates.forEach(function(candidate) {
- var e = new Event('RTCIceGatherEvent');
- e.candidate = candidate;
- iceGatherer.onlocalcandidate(e);
+ var args = arguments;
+
+ // 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 arguments[0] !== '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;
});
- }, 0);
- };
- // Create ICE transport and DTLS transport.
- RTCPeerConnection.prototype._createIceAndDtlsTransports = function() {
- var pc = this;
- var iceTransport = new window.RTCIceTransport(null);
- iceTransport.onicestatechange = function() {
- pc._updateConnectionState();
+ return standardReport;
};
- var dtlsTransport = new window.RTCDtlsTransport(iceTransport);
- dtlsTransport.ondtlsstatechange = function() {
- pc._updateConnectionState();
- };
- dtlsTransport.onerror = function() {
- // onerror does not set state to failed by itpc.
- Object.defineProperty(dtlsTransport, 'state',
- {value: 'failed', writable: true});
- pc._updateConnectionState();
+ // shim getStats with maplike support
+ var makeMapStats = function makeMapStats(stats) {
+ return new Map(Object.keys(stats).map(function (key) {
+ return [key, stats[key]];
+ }));
};
- return {
- iceTransport: iceTransport,
- dtlsTransport: dtlsTransport
- };
- };
+ if (arguments.length >= 2) {
+ var successCallbackWrapper_ = function successCallbackWrapper_(response) {
+ args[1](makeMapStats(fixChromeStats_(response)));
+ };
- // Destroy ICE gatherer, ICE transport and DTLS transport.
- // Without triggering the callbacks.
- RTCPeerConnection.prototype._disposeIceAndDtlsTransports = function(
- sdpMLineIndex) {
- var iceGatherer = this.transceivers[sdpMLineIndex].iceGatherer;
- if (iceGatherer) {
- delete iceGatherer.onlocalcandidate;
- delete this.transceivers[sdpMLineIndex].iceGatherer;
- }
- var iceTransport = this.transceivers[sdpMLineIndex].iceTransport;
- if (iceTransport) {
- delete iceTransport.onicestatechange;
- delete this.transceivers[sdpMLineIndex].iceTransport;
- }
- var dtlsTransport = this.transceivers[sdpMLineIndex].dtlsTransport;
- if (dtlsTransport) {
- delete dtlsTransport.ondtlsstatechange;
- delete dtlsTransport.onerror;
- delete this.transceivers[sdpMLineIndex].dtlsTransport;
+ return origGetStats.apply(this, [successCallbackWrapper_, arguments[0]]);
}
+
+ // promise-support
+ return new Promise(function (resolve, reject) {
+ origGetStats.apply(_this15, [function (response) {
+ resolve(makeMapStats(fixChromeStats_(response)));
+ }, reject]);
+ }).then(successCallback, errorCallback);
};
- // Start the RTP Sender and Receiver for a transceiver.
- RTCPeerConnection.prototype._transceive = function(transceiver,
- send, recv) {
- var params = getCommonCapabilities(transceiver.localCapabilities,
- transceiver.remoteCapabilities);
- if (send && transceiver.rtpSender) {
- params.encodings = transceiver.sendEncodingParameters;
- params.rtcp = {
- cname: SDPUtils.localCName,
- compound: transceiver.rtcpParameters.compound
- };
- if (transceiver.recvEncodingParameters.length) {
- params.rtcp.ssrc = transceiver.recvEncodingParameters[0].ssrc;
- }
- transceiver.rtpSender.send(params);
- }
- if (recv && transceiver.rtpReceiver && params.codecs.length > 0) {
- // remove RTX field in Edge 14942
- if (transceiver.kind === 'video'
- && transceiver.recvEncodingParameters
- && edgeVersion < 15019) {
- transceiver.recvEncodingParameters.forEach(function(p) {
- delete p.rtx;
- });
- }
- if (transceiver.recvEncodingParameters.length) {
- params.encodings = transceiver.recvEncodingParameters;
- }
- params.rtcp = {
- compound: transceiver.rtcpParameters.compound
- };
- if (transceiver.rtcpParameters.cname) {
- params.rtcp.cname = transceiver.rtcpParameters.cname;
- }
- if (transceiver.sendEncodingParameters.length) {
- params.rtcp.ssrc = transceiver.sendEncodingParameters[0].ssrc;
+ // shim implicit creation of RTCSessionDescription/RTCIceCandidate
+ ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate'].forEach(function (method) {
+ var nativeMethod = window.RTCPeerConnection.prototype[method];
+ window.RTCPeerConnection.prototype[method] = function () {
+ arguments[0] = new (method === 'addIceCandidate' ? window.RTCIceCandidate : window.RTCSessionDescription)(arguments[0]);
+ return nativeMethod.apply(this, arguments);
+ };
+ });
+
+ // support for addIceCandidate(null or undefined)
+ var nativeAddIceCandidate = window.RTCPeerConnection.prototype.addIceCandidate;
+ window.RTCPeerConnection.prototype.addIceCandidate = function () {
+ if (!arguments[0]) {
+ if (arguments[1]) {
+ arguments[1].apply(null);
}
- transceiver.rtpReceiver.receive(params);
+ return Promise.resolve();
}
+ return nativeAddIceCandidate.apply(this, arguments);
};
+}
- RTCPeerConnection.prototype.setLocalDescription = function(description) {
- var pc = this;
-
- if (!isActionAllowedInSignalingState('setLocalDescription',
- description.type, this.signalingState) || this._isClosed) {
- return Promise.reject(makeError('InvalidStateError',
- 'Can not set local ' + description.type +
- ' in state ' + pc.signalingState));
+function fixNegotiationNeeded(window) {
+ utils.wrapPeerConnectionEvent(window, 'negotiationneeded', function (e) {
+ var pc = e.target;
+ if (pc.signalingState !== 'stable') {
+ return;
}
+ return e;
+ });
+}
- var sections;
- var sessionpart;
- if (description.type === 'offer') {
- // VERY limited support for SDP munging. Limited to:
- // * changing the order of codecs
- sections = SDPUtils.splitSections(description.sdp);
- sessionpart = sections.shift();
- sections.forEach(function(mediaSection, sdpMLineIndex) {
- var caps = SDPUtils.parseRtpParameters(mediaSection);
- pc.transceivers[sdpMLineIndex].localCapabilities = caps;
- });
-
- this.transceivers.forEach(function(transceiver, sdpMLineIndex) {
- pc._gather(transceiver.mid, sdpMLineIndex);
- });
- } else if (description.type === 'answer') {
- sections = SDPUtils.splitSections(pc.remoteDescription.sdp);
- sessionpart = sections.shift();
- var isIceLite = SDPUtils.matchPrefix(sessionpart,
- 'a=ice-lite').length > 0;
- sections.forEach(function(mediaSection, sdpMLineIndex) {
- var transceiver = pc.transceivers[sdpMLineIndex];
- var iceGatherer = transceiver.iceGatherer;
- var iceTransport = transceiver.iceTransport;
- var dtlsTransport = transceiver.dtlsTransport;
- var localCapabilities = transceiver.localCapabilities;
- var remoteCapabilities = transceiver.remoteCapabilities;
-
- // treat bundle-only as not-rejected.
- var rejected = SDPUtils.isRejected(mediaSection) &&
- SDPUtils.matchPrefix(mediaSection, 'a=bundle-only').length === 0;
+},{"../utils.js":15,"./getdisplaymedia":4,"./getusermedia":5}],4:[function(require,module,exports){
+/*
+ * Copyright (c) 2018 The adapter.js project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree.
+ */
+/* eslint-env node */
+'use strict';
- if (!rejected && !transceiver.isDatachannel) {
- var remoteIceParameters = SDPUtils.getIceParameters(
- mediaSection, sessionpart);
- var remoteDtlsParameters = SDPUtils.getDtlsParameters(
- mediaSection, sessionpart);
- if (isIceLite) {
- remoteDtlsParameters.role = 'server';
- }
+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 (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);
+ });
+ };
+}
- if (!pc.usingBundle || sdpMLineIndex === 0) {
- pc._gather(transceiver.mid, sdpMLineIndex);
- if (iceTransport.state === 'new') {
- iceTransport.start(iceGatherer, remoteIceParameters,
- isIceLite ? 'controlling' : 'controlled');
- }
- if (dtlsTransport.state === 'new') {
- dtlsTransport.start(remoteDtlsParameters);
- }
- }
+},{}],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';
- // Calculate intersection of capabilities.
- var params = getCommonCapabilities(localCapabilities,
- remoteCapabilities);
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
- // Start the RTCRtpSender. The RTCRtpReceiver for this
- // transceiver has already been started in setRemoteDescription.
- pc._transceive(transceiver,
- params.codecs.length > 0,
- false);
- }
- });
- }
+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; };
- this.localDescription = {
- type: description.type,
- sdp: description.sdp
- };
- switch (description.type) {
- case 'offer':
- this._updateSignalingState('have-local-offer');
- break;
- case 'answer':
- this._updateSignalingState('stable');
- break;
- default:
- throw new TypeError('unsupported type "' + description.type +
- '"');
- }
+exports.shimGetUserMedia = shimGetUserMedia;
- return Promise.resolve();
- };
+var _utils = require('../utils.js');
- RTCPeerConnection.prototype.setRemoteDescription = function(description) {
- var pc = this;
+var utils = _interopRequireWildcard(_utils);
- if (!isActionAllowedInSignalingState('setRemoteDescription',
- description.type, this.signalingState) || this._isClosed) {
- return Promise.reject(makeError('InvalidStateError',
- 'Can not set remote ' + description.type +
- ' in state ' + pc.signalingState));
- }
+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 streams = {};
- this.remoteStreams.forEach(function(stream) {
- streams[stream.id] = stream;
- });
- var receiverList = [];
- var sections = SDPUtils.splitSections(description.sdp);
- var sessionpart = sections.shift();
- var isIceLite = SDPUtils.matchPrefix(sessionpart,
- 'a=ice-lite').length > 0;
- var usingBundle = SDPUtils.matchPrefix(sessionpart,
- 'a=group:BUNDLE ').length > 0;
- this.usingBundle = usingBundle;
- var iceOptions = SDPUtils.matchPrefix(sessionpart,
- 'a=ice-options:')[0];
- if (iceOptions) {
- this.canTrickleIceCandidates = iceOptions.substr(14).split(' ')
- .indexOf('trickle') >= 0;
- } else {
- this.canTrickleIceCandidates = false;
- }
+var logging = utils.log;
- sections.forEach(function(mediaSection, sdpMLineIndex) {
- var lines = SDPUtils.splitLines(mediaSection);
- var kind = SDPUtils.getKind(mediaSection);
- // treat bundle-only as not-rejected.
- var rejected = SDPUtils.isRejected(mediaSection) &&
- SDPUtils.matchPrefix(mediaSection, 'a=bundle-only').length === 0;
- var protocol = lines[0].substr(2).split(' ')[2];
+function shimGetUserMedia(window) {
+ var navigator = window && window.navigator;
- var direction = SDPUtils.getDirection(mediaSection, sessionpart);
- var remoteMsid = SDPUtils.parseMsid(mediaSection);
+ if (!navigator.mediaDevices) {
+ return;
+ }
- var mid = SDPUtils.getMid(mediaSection) || SDPUtils.generateIdentifier();
+ var browserDetails = utils.detectBrowser(window);
- // Reject datachannels which are not implemented yet.
- if (kind === 'application' && protocol === 'DTLS/SCTP') {
- pc.transceivers[sdpMLineIndex] = {
- mid: mid,
- isDatachannel: true
- };
+ 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 transceiver;
- var iceGatherer;
- var iceTransport;
- var dtlsTransport;
- var rtpReceiver;
- var sendEncodingParameters;
- var recvEncodingParameters;
- var localCapabilities;
-
- var track;
- // FIXME: ensure the mediaSection has rtcp-mux set.
- var remoteCapabilities = SDPUtils.parseRtpParameters(mediaSection);
- var remoteIceParameters;
- var remoteDtlsParameters;
- if (!rejected) {
- remoteIceParameters = SDPUtils.getIceParameters(mediaSection,
- sessionpart);
- remoteDtlsParameters = SDPUtils.getDtlsParameters(mediaSection,
- sessionpart);
- remoteDtlsParameters.role = 'client';
+ 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;
}
- recvEncodingParameters =
- SDPUtils.parseRtpEncodingParameters(mediaSection);
-
- var rtcpParameters = SDPUtils.parseRtcpParameters(mediaSection);
-
- var isComplete = SDPUtils.matchPrefix(mediaSection,
- 'a=end-of-candidates', sessionpart).length > 0;
- var cands = SDPUtils.matchPrefix(mediaSection, 'a=candidate:')
- .map(function(cand) {
- return SDPUtils.parseCandidate(cand);
- })
- .filter(function(cand) {
- return cand.component === 1;
- });
-
- // Check if we can use BUNDLE and dispose transports.
- if ((description.type === 'offer' || description.type === 'answer') &&
- !rejected && usingBundle && sdpMLineIndex > 0 &&
- pc.transceivers[sdpMLineIndex]) {
- pc._disposeIceAndDtlsTransports(sdpMLineIndex);
- pc.transceivers[sdpMLineIndex].iceGatherer =
- pc.transceivers[0].iceGatherer;
- pc.transceivers[sdpMLineIndex].iceTransport =
- pc.transceivers[0].iceTransport;
- pc.transceivers[sdpMLineIndex].dtlsTransport =
- pc.transceivers[0].dtlsTransport;
- if (pc.transceivers[sdpMLineIndex].rtpSender) {
- pc.transceivers[sdpMLineIndex].rtpSender.setTransport(
- pc.transceivers[0].dtlsTransport);
+ var oldname_ = function oldname_(prefix, name) {
+ if (prefix) {
+ return prefix + name.charAt(0).toUpperCase() + name.slice(1);
}
- if (pc.transceivers[sdpMLineIndex].rtpReceiver) {
- pc.transceivers[sdpMLineIndex].rtpReceiver.setTransport(
- pc.transceivers[0].dtlsTransport);
+ 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 (description.type === 'offer' && !rejected) {
- transceiver = pc.transceivers[sdpMLineIndex] ||
- pc._createTransceiver(kind);
- transceiver.mid = mid;
+ 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;
+ };
- if (!transceiver.iceGatherer) {
- transceiver.iceGatherer = pc._createIceGatherer(sdpMLineIndex,
- usingBundle);
+ 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 (cands.length && transceiver.iceTransport.state === 'new') {
- if (isComplete && (!usingBundle || sdpMLineIndex === 0)) {
- transceiver.iceTransport.setRemoteCandidates(cands);
- } else {
- cands.forEach(function(candidate) {
- maybeAddCandidate(transceiver.iceTransport, candidate);
+ 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);
+ };
- localCapabilities = window.RTCRtpReceiver.getCapabilities(kind);
+ 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;
+ }
+ };
+ };
- // filter RTX until additional stuff needed for RTX is implemented
- // in adapter.js
- if (edgeVersion < 15019) {
- localCapabilities.codecs = localCapabilities.codecs.filter(
- function(codec) {
- return codec.name !== 'rtx';
- });
+ 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.
+ 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));
+ });
+ });
+ };
+}
- sendEncodingParameters = transceiver.sendEncodingParameters || [{
- ssrc: (2 * sdpMLineIndex + 2) * 1001
- }];
+},{"../utils.js":15}],6:[function(require,module,exports){
+/*
+ * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree.
+ */
+/* eslint-env node */
+'use strict';
- // TODO: rewrite to use http://w3c.github.io/webrtc-pc/#set-associated-remote-streams
- var isNewTrack = false;
- if (direction === 'sendrecv' || direction === 'sendonly') {
- isNewTrack = !transceiver.rtpReceiver;
- rtpReceiver = transceiver.rtpReceiver ||
- new window.RTCRtpReceiver(transceiver.dtlsTransport, kind);
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
- if (isNewTrack) {
- var stream;
- track = rtpReceiver.track;
- // FIXME: does not work with Plan B.
- if (remoteMsid && remoteMsid.stream === '-') {
- // no-op. a stream id of '-' means: no associated stream.
- } else if (remoteMsid) {
- if (!streams[remoteMsid.stream]) {
- streams[remoteMsid.stream] = new window.MediaStream();
- Object.defineProperty(streams[remoteMsid.stream], 'id', {
- get: function() {
- return remoteMsid.stream;
- }
- });
- }
- Object.defineProperty(track, 'id', {
- get: function() {
- return remoteMsid.track;
- }
- });
- stream = streams[remoteMsid.stream];
- } else {
- if (!streams.default) {
- streams.default = new window.MediaStream();
- }
- stream = streams.default;
- }
- if (stream) {
- addTrackToStreamAndFireEvent(track, stream);
- transceiver.associatedRemoteMediaStreams.push(stream);
- }
- receiverList.push([track, rtpReceiver, stream]);
- }
- } else if (transceiver.rtpReceiver && transceiver.rtpReceiver.track) {
- transceiver.associatedRemoteMediaStreams.forEach(function(s) {
- var nativeTrack = s.getTracks().find(function(t) {
- return t.id === transceiver.rtpReceiver.track.id;
- });
- if (nativeTrack) {
- removeTrackFromStreamAndFireEvent(nativeTrack, s);
- }
- });
- transceiver.associatedRemoteMediaStreams = [];
- }
+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; };
- transceiver.localCapabilities = localCapabilities;
- transceiver.remoteCapabilities = remoteCapabilities;
- transceiver.rtpReceiver = rtpReceiver;
- transceiver.rtcpParameters = rtcpParameters;
- transceiver.sendEncodingParameters = sendEncodingParameters;
- transceiver.recvEncodingParameters = recvEncodingParameters;
+exports.shimRTCIceCandidate = shimRTCIceCandidate;
+exports.shimMaxMessageSize = shimMaxMessageSize;
+exports.shimSendThrowTypeError = shimSendThrowTypeError;
+exports.shimConnectionState = shimConnectionState;
+exports.removeAllowExtmapMixed = removeAllowExtmapMixed;
- // Start the RTCRtpReceiver now. The RTPSender is started in
- // setLocalDescription.
- pc._transceive(pc.transceivers[sdpMLineIndex],
- false,
- isNewTrack);
- } else if (description.type === 'answer' && !rejected) {
- transceiver = pc.transceivers[sdpMLineIndex];
- iceGatherer = transceiver.iceGatherer;
- iceTransport = transceiver.iceTransport;
- dtlsTransport = transceiver.dtlsTransport;
- rtpReceiver = transceiver.rtpReceiver;
- sendEncodingParameters = transceiver.sendEncodingParameters;
- localCapabilities = transceiver.localCapabilities;
+var _sdp = require('sdp');
- pc.transceivers[sdpMLineIndex].recvEncodingParameters =
- recvEncodingParameters;
- pc.transceivers[sdpMLineIndex].remoteCapabilities =
- remoteCapabilities;
- pc.transceivers[sdpMLineIndex].rtcpParameters = rtcpParameters;
+var _sdp2 = _interopRequireDefault(_sdp);
- if (cands.length && iceTransport.state === 'new') {
- if ((isIceLite || isComplete) &&
- (!usingBundle || sdpMLineIndex === 0)) {
- iceTransport.setRemoteCandidates(cands);
- } else {
- cands.forEach(function(candidate) {
- maybeAddCandidate(transceiver.iceTransport, candidate);
- });
- }
- }
+var _utils = require('./utils');
- if (!usingBundle || sdpMLineIndex === 0) {
- if (iceTransport.state === 'new') {
- iceTransport.start(iceGatherer, remoteIceParameters,
- 'controlling');
- }
- if (dtlsTransport.state === 'new') {
- dtlsTransport.start(remoteDtlsParameters);
- }
- }
+var utils = _interopRequireWildcard(_utils);
- pc._transceive(transceiver,
- direction === 'sendrecv' || direction === 'recvonly',
- direction === 'sendrecv' || direction === 'sendonly');
+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; } }
- // TODO: rewrite to use http://w3c.github.io/webrtc-pc/#set-associated-remote-streams
- if (rtpReceiver &&
- (direction === 'sendrecv' || direction === 'sendonly')) {
- track = rtpReceiver.track;
- if (remoteMsid) {
- if (!streams[remoteMsid.stream]) {
- streams[remoteMsid.stream] = new window.MediaStream();
- }
- addTrackToStreamAndFireEvent(track, streams[remoteMsid.stream]);
- receiverList.push([track, rtpReceiver, streams[remoteMsid.stream]]);
- } else {
- if (!streams.default) {
- streams.default = new window.MediaStream();
- }
- addTrackToStreamAndFireEvent(track, streams.default);
- receiverList.push([track, rtpReceiver, streams.default]);
- }
- } else {
- // FIXME: actually the receiver should be created later.
- delete transceiver.rtpReceiver;
- }
- }
- });
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
- if (this._dtlsRole === undefined) {
- this._dtlsRole = description.type === 'offer' ? 'active' : 'passive';
- }
+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;
+ }
- this.remoteDescription = {
- type: description.type,
- sdp: description.sdp
- };
- switch (description.type) {
- case 'offer':
- this._updateSignalingState('have-remote-offer');
- break;
- case 'answer':
- this._updateSignalingState('stable');
- break;
- default:
- throw new TypeError('unsupported type "' + description.type +
- '"');
+ var NativeRTCIceCandidate = window.RTCIceCandidate;
+ window.RTCIceCandidate = function (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);
}
- Object.keys(streams).forEach(function(sid) {
- var stream = streams[sid];
- if (stream.getTracks().length) {
- if (pc.remoteStreams.indexOf(stream) === -1) {
- pc.remoteStreams.push(stream);
- var event = new Event('addstream');
- event.stream = stream;
- window.setTimeout(function() {
- pc._dispatchEvent('addstream', event);
- });
- }
- receiverList.forEach(function(item) {
- var track = item[0];
- var receiver = item[1];
- if (stream.id !== item[2].id) {
- return;
- }
- fireAddTrack(pc, track, receiver, [stream]);
- });
- }
- });
- receiverList.forEach(function(item) {
- if (item[2]) {
- return;
- }
- fireAddTrack(pc, item[0], item[1], []);
- });
+ 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);
- // check whether addIceCandidate({}) was called within four seconds after
- // setRemoteDescription.
- window.setTimeout(function() {
- if (!(pc && pc.transceivers)) {
- return;
- }
- pc.transceivers.forEach(function(transceiver) {
- if (transceiver.iceTransport &&
- transceiver.iceTransport.state === 'new' &&
- transceiver.iceTransport.getRemoteCandidates().length > 0) {
- console.warn('Timeout for addRemoteCandidate. Consider sending ' +
- 'an end-of-candidates notification');
- transceiver.iceTransport.addRemoteCandidate({});
- }
+ // Add a serializer that does not serialize the extra attributes.
+ augmentedCandidate.toJSON = function () {
+ 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'
});
- }, 4000);
+ }
+ return e;
+ });
+}
- return Promise.resolve();
- };
+function shimMaxMessageSize(window) {
+ if (window.RTCSctpTransport || !window.RTCPeerConnection) {
+ return;
+ }
+ var browserDetails = utils.detectBrowser(window);
- RTCPeerConnection.prototype.close = function() {
- this.transceivers.forEach(function(transceiver) {
- /* not yet
- if (transceiver.iceGatherer) {
- transceiver.iceGatherer.close();
- }
- */
- if (transceiver.iceTransport) {
- transceiver.iceTransport.stop();
- }
- if (transceiver.dtlsTransport) {
- transceiver.dtlsTransport.stop();
- }
- if (transceiver.rtpSender) {
- transceiver.rtpSender.stop();
- }
- if (transceiver.rtpReceiver) {
- transceiver.rtpReceiver.stop();
+ if (!('sctp' in window.RTCPeerConnection.prototype)) {
+ Object.defineProperty(window.RTCPeerConnection.prototype, 'sctp', {
+ get: function get() {
+ return typeof this._sctp === 'undefined' ? null : this._sctp;
}
});
- // FIXME: clean up tracks, local streams, remote streams, etc
- this._isClosed = true;
- this._updateSignalingState('closed');
- };
+ }
- // Update the signaling state.
- RTCPeerConnection.prototype._updateSignalingState = function(newState) {
- this.signalingState = newState;
- var event = new Event('signalingstatechange');
- this._dispatchEvent('signalingstatechange', event);
+ var sctpInDescription = function sctpInDescription(description) {
+ 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;
+ });
};
- // Determine whether to fire the negotiationneeded event.
- RTCPeerConnection.prototype._maybeFireNegotiationNeeded = function() {
- var pc = this;
- if (this.signalingState !== 'stable' || this.needNegotiation === true) {
- return;
+ 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;
}
- this.needNegotiation = true;
- window.setTimeout(function() {
- if (pc.needNegotiation === false) {
- return;
+ 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;
}
- pc.needNegotiation = false;
- var event = new Event('negotiationneeded');
- pc._dispatchEvent('negotiationneeded', event);
- }, 0);
+ }
+ return canSendMaxMessageSize;
};
- // Update the connection state.
- RTCPeerConnection.prototype._updateConnectionState = function() {
- var newState;
- var states = {
- 'new': 0,
- closed: 0,
- connecting: 0,
- checking: 0,
- connected: 0,
- completed: 0,
- disconnected: 0,
- failed: 0
- };
- this.transceivers.forEach(function(transceiver) {
- states[transceiver.iceTransport.state]++;
- states[transceiver.dtlsTransport.state]++;
- });
- // ICETransport.completed and connected are the same for this purpose.
- states.connected += states.completed;
+ 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;
- newState = 'new';
- if (states.failed > 0) {
- newState = 'failed';
- } else if (states.connecting > 0 || states.checking > 0) {
- newState = 'connecting';
- } else if (states.disconnected > 0) {
- newState = 'disconnected';
- } else if (states.new > 0) {
- newState = 'new';
- } else if (states.connected > 0 || states.completed > 0) {
- newState = 'connected';
+ // 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;
}
- if (newState !== this.iceConnectionState) {
- this.iceConnectionState = newState;
- var event = new Event('iceconnectionstatechange');
- this._dispatchEvent('iceconnectionstatechange', event);
+ 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;
};
- RTCPeerConnection.prototype.createOffer = function() {
- var pc = this;
+ var origSetRemoteDescription = window.RTCPeerConnection.prototype.setRemoteDescription;
+ window.RTCPeerConnection.prototype.setRemoteDescription = function () {
+ this._sctp = null;
- if (this._isClosed) {
- return Promise.reject(makeError('InvalidStateError',
- 'Can not call createOffer after close'));
- }
+ if (sctpInDescription(arguments[0])) {
+ // Check if the remote is FF.
+ var isFirefox = getRemoteFirefoxVersion(arguments[0]);
- var numAudioTracks = this.transceivers.filter(function(t) {
- return t.kind === 'audio';
- }).length;
- var numVideoTracks = this.transceivers.filter(function(t) {
- return t.kind === 'video';
- }).length;
+ // Get the maximum message size the local peer is capable of sending
+ var canSendMMS = getCanSendMaxMessageSize(isFirefox);
- // Determine number of audio and video tracks we need to send/recv.
- var offerOptions = arguments[0];
- if (offerOptions) {
- // Reject Chrome legacy constraints.
- if (offerOptions.mandatory || offerOptions.optional) {
- throw new TypeError(
- 'Legacy mandatory/optional constraints not supported.');
- }
- if (offerOptions.offerToReceiveAudio !== undefined) {
- if (offerOptions.offerToReceiveAudio === true) {
- numAudioTracks = 1;
- } else if (offerOptions.offerToReceiveAudio === false) {
- numAudioTracks = 0;
- } else {
- numAudioTracks = offerOptions.offerToReceiveAudio;
- }
+ // 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);
}
- if (offerOptions.offerToReceiveVideo !== undefined) {
- if (offerOptions.offerToReceiveVideo === true) {
- numVideoTracks = 1;
- } else if (offerOptions.offerToReceiveVideo === false) {
- numVideoTracks = 0;
- } else {
- numVideoTracks = offerOptions.offerToReceiveVideo;
+
+ // Create a dummy RTCSctpTransport object and the 'maxMessageSize'
+ // attribute.
+ var sctp = {};
+ Object.defineProperty(sctp, 'maxMessageSize', {
+ get: function get() {
+ return maxMessageSize;
}
- }
+ });
+ this._sctp = sctp;
}
- this.transceivers.forEach(function(transceiver) {
- if (transceiver.kind === 'audio') {
- numAudioTracks--;
- if (numAudioTracks < 0) {
- transceiver.wantReceive = false;
- }
- } else if (transceiver.kind === 'video') {
- numVideoTracks--;
- if (numVideoTracks < 0) {
- transceiver.wantReceive = false;
- }
- }
- });
+ return origSetRemoteDescription.apply(this, arguments);
+ };
+}
- // Create M-lines for recvonly streams.
- while (numAudioTracks > 0 || numVideoTracks > 0) {
- if (numAudioTracks > 0) {
- this._createTransceiver('audio');
- numAudioTracks--;
- }
- if (numVideoTracks > 0) {
- this._createTransceiver('video');
- numVideoTracks--;
+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 () {
+ 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 () {
+ var dataChannel = origCreateDataChannel.apply(this, arguments);
+ wrapDcSend(dataChannel, this);
+ return dataChannel;
+ };
+ utils.wrapPeerConnectionEvent(window, 'datachannel', function (e) {
+ wrapDcSend(e.channel, e.target);
+ return e;
+ });
+}
- var sdp = SDPUtils.writeSessionBoilerplate(this._sdpSessionId,
- this._sdpSessionVersion++);
- this.transceivers.forEach(function(transceiver, sdpMLineIndex) {
- // For each track, create an ice gatherer, ice transport,
- // dtls transport, potentially rtpsender and rtpreceiver.
- var track = transceiver.track;
- var kind = transceiver.kind;
- var mid = SDPUtils.generateIdentifier();
- transceiver.mid = mid;
+/* 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;
+ },
- if (!transceiver.iceGatherer) {
- transceiver.iceGatherer = pc._createIceGatherer(sdpMLineIndex,
- pc.usingBundle);
+ 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;
}
-
- var localCapabilities = window.RTCRtpSender.getCapabilities(kind);
- // filter RTX until additional stuff needed for RTX is implemented
- // in adapter.js
- if (edgeVersion < 15019) {
- localCapabilities.codecs = localCapabilities.codecs.filter(
- function(codec) {
- return codec.name !== 'rtx';
- });
+ if (cb) {
+ this.addEventListener('connectionstatechange', this._onconnectionstatechange = cb);
}
- localCapabilities.codecs.forEach(function(codec) {
- // work around https://bugs.chromium.org/p/webrtc/issues/detail?id=6552
- // by adding level-asymmetry-allowed=1
- if (codec.name === 'H264' &&
- codec.parameters['level-asymmetry-allowed'] === undefined) {
- codec.parameters['level-asymmetry-allowed'] = '1';
- }
- });
+ },
- // generate an ssrc now, to be used later in rtpSender.send
- var sendEncodingParameters = transceiver.sendEncodingParameters || [{
- ssrc: (2 * sdpMLineIndex + 1) * 1001
- }];
- if (track) {
- // add RTX
- if (edgeVersion >= 15019 && kind === 'video' &&
- !sendEncodingParameters[0].rtx) {
- sendEncodingParameters[0].rtx = {
- ssrc: sendEncodingParameters[0].ssrc + 1
- };
- }
- }
+ enumerable: true,
+ configurable: true
+ });
- if (transceiver.wantReceive) {
- transceiver.rtpReceiver = new window.RTCRtpReceiver(
- transceiver.dtlsTransport, kind);
+ ['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);
+ };
+ });
+}
- transceiver.localCapabilities = localCapabilities;
- transceiver.sendEncodingParameters = sendEncodingParameters;
- });
-
- // always offer BUNDLE and dispose on return if not supported.
- if (this._config.bundlePolicy !== 'max-compat') {
- sdp += 'a=group:BUNDLE ' + this.transceivers.map(function(t) {
- return t.mid;
- }).join(' ') + '\r\n';
+function removeAllowExtmapMixed(window) {
+ /* remove a=extmap-allow-mixed for Chrome < M71 */
+ if (!window.RTCPeerConnection) {
+ return;
+ }
+ var browserDetails = utils.detectBrowser(window);
+ if (browserDetails.browser === 'chrome' && browserDetails.version >= 71) {
+ return;
+ }
+ var nativeSRD = window.RTCPeerConnection.prototype.setRemoteDescription;
+ window.RTCPeerConnection.prototype.setRemoteDescription = function (desc) {
+ if (desc && desc.sdp && desc.sdp.indexOf('\na=extmap-allow-mixed') !== -1) {
+ desc.sdp = desc.sdp.split('\n').filter(function (line) {
+ return line.trim() !== 'a=extmap-allow-mixed';
+ }).join('\n');
}
- sdp += 'a=ice-options:trickle\r\n';
+ return nativeSRD.apply(this, arguments);
+ };
+}
- this.transceivers.forEach(function(transceiver, sdpMLineIndex) {
- sdp += writeMediaSection(transceiver, transceiver.localCapabilities,
- 'offer', transceiver.stream, pc._dtlsRole);
- sdp += 'a=rtcp-rsize\r\n';
+},{"./utils":15,"sdp":17}],7:[function(require,module,exports){
+/*
+ * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree.
+ */
+/* eslint-env node */
+'use strict';
- if (transceiver.iceGatherer && pc.iceGatheringState !== 'new' &&
- (sdpMLineIndex === 0 || !pc.usingBundle)) {
- transceiver.iceGatherer.getLocalCandidates().forEach(function(cand) {
- cand.component = 1;
- sdp += 'a=' + SDPUtils.writeCandidate(cand) + '\r\n';
- });
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.shimGetDisplayMedia = exports.shimGetUserMedia = undefined;
- if (transceiver.iceGatherer.state === 'completed') {
- sdp += 'a=end-of-candidates\r\n';
- }
- }
- });
+var _getusermedia = require('./getusermedia');
- var desc = new window.RTCSessionDescription({
- type: 'offer',
- sdp: sdp
- });
- return Promise.resolve(desc);
- };
+Object.defineProperty(exports, 'shimGetUserMedia', {
+ enumerable: true,
+ get: function get() {
+ return _getusermedia.shimGetUserMedia;
+ }
+});
- RTCPeerConnection.prototype.createAnswer = function() {
- var pc = this;
+var _getdisplaymedia = require('./getdisplaymedia');
- if (this._isClosed) {
- return Promise.reject(makeError('InvalidStateError',
- 'Can not call createAnswer after close'));
- }
+Object.defineProperty(exports, 'shimGetDisplayMedia', {
+ enumerable: true,
+ get: function get() {
+ return _getdisplaymedia.shimGetDisplayMedia;
+ }
+});
+exports.shimPeerConnection = shimPeerConnection;
+exports.shimReplaceTrack = shimReplaceTrack;
- var sdp = SDPUtils.writeSessionBoilerplate(this._sdpSessionId,
- this._sdpSessionVersion++);
- if (this.usingBundle) {
- sdp += 'a=group:BUNDLE ' + this.transceivers.map(function(t) {
- return t.mid;
- }).join(' ') + '\r\n';
- }
- var mediaSectionsInOffer = SDPUtils.splitSections(
- this.remoteDescription.sdp).length - 1;
- this.transceivers.forEach(function(transceiver, sdpMLineIndex) {
- if (sdpMLineIndex + 1 > mediaSectionsInOffer) {
- return;
- }
- if (transceiver.isDatachannel) {
- sdp += 'm=application 0 DTLS/SCTP 5000\r\n' +
- 'c=IN IP4 0.0.0.0\r\n' +
- 'a=mid:' + transceiver.mid + '\r\n';
- return;
- }
+var _utils = require('../utils');
- // FIXME: look at direction.
- if (transceiver.stream) {
- var localTrack;
- if (transceiver.kind === 'audio') {
- localTrack = transceiver.stream.getAudioTracks()[0];
- } else if (transceiver.kind === 'video') {
- localTrack = transceiver.stream.getVideoTracks()[0];
+var utils = _interopRequireWildcard(_utils);
+
+var _filtericeservers = require('./filtericeservers');
+
+var _rtcpeerconnectionShim = require('rtcpeerconnection-shim');
+
+var _rtcpeerconnectionShim2 = _interopRequireDefault(_rtcpeerconnectionShim);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
+
+function shimPeerConnection(window) {
+ var browserDetails = utils.detectBrowser(window);
+
+ if (window.RTCIceGatherer) {
+ if (!window.RTCIceCandidate) {
+ window.RTCIceCandidate = function (args) {
+ return args;
+ };
+ }
+ if (!window.RTCSessionDescription) {
+ window.RTCSessionDescription = function (args) {
+ return args;
+ };
+ }
+ // this adds an additional event listener to MediaStrackTrack that signals
+ // when a tracks enabled property was changed. Workaround for a bug in
+ // addStream, see below. No longer required in 15025+
+ if (browserDetails.version < 15025) {
+ var origMSTEnabled = Object.getOwnPropertyDescriptor(window.MediaStreamTrack.prototype, 'enabled');
+ Object.defineProperty(window.MediaStreamTrack.prototype, 'enabled', {
+ set: function set(value) {
+ origMSTEnabled.set.call(this, value);
+ var ev = new Event('enabled');
+ ev.enabled = value;
+ this.dispatchEvent(ev);
}
- if (localTrack) {
- // add RTX
- if (edgeVersion >= 15019 && transceiver.kind === 'video' &&
- !transceiver.sendEncodingParameters[0].rtx) {
- transceiver.sendEncodingParameters[0].rtx = {
- ssrc: transceiver.sendEncodingParameters[0].ssrc + 1
- };
+ });
+ }
+ }
+
+ // ORTC defines the DTMF sender a bit different.
+ // https://github.com/w3c/ortc/issues/714
+ if (window.RTCRtpSender && !('dtmf' in window.RTCRtpSender.prototype)) {
+ Object.defineProperty(window.RTCRtpSender.prototype, 'dtmf', {
+ get: function get() {
+ if (this._dtmf === undefined) {
+ if (this.track.kind === 'audio') {
+ this._dtmf = new window.RTCDtmfSender(this);
+ } else if (this.track.kind === 'video') {
+ this._dtmf = null;
}
}
+ return this._dtmf;
}
+ });
+ }
+ // Edge currently only implements the RTCDtmfSender, not the
+ // RTCDTMFSender alias. See http://draft.ortc.org/#rtcdtmfsender2*
+ if (window.RTCDtmfSender && !window.RTCDTMFSender) {
+ window.RTCDTMFSender = window.RTCDtmfSender;
+ }
- // Calculate intersection of capabilities.
- var commonCapabilities = getCommonCapabilities(
- transceiver.localCapabilities,
- transceiver.remoteCapabilities);
+ var RTCPeerConnectionShim = (0, _rtcpeerconnectionShim2.default)(window, browserDetails.version);
+ window.RTCPeerConnection = function (config) {
+ if (config && config.iceServers) {
+ config.iceServers = (0, _filtericeservers.filterIceServers)(config.iceServers, browserDetails.version);
+ utils.log('ICE servers after filtering:', config.iceServers);
+ }
+ return new RTCPeerConnectionShim(config);
+ };
+ window.RTCPeerConnection.prototype = RTCPeerConnectionShim.prototype;
+}
- var hasRtx = commonCapabilities.codecs.filter(function(c) {
- return c.name.toLowerCase() === 'rtx';
- }).length;
- if (!hasRtx && transceiver.sendEncodingParameters[0].rtx) {
- delete transceiver.sendEncodingParameters[0].rtx;
- }
+function shimReplaceTrack(window) {
+ // ORTC has replaceTrack -- https://github.com/w3c/ortc/issues/614
+ if (window.RTCRtpSender && !('replaceTrack' in window.RTCRtpSender.prototype)) {
+ window.RTCRtpSender.prototype.replaceTrack = window.RTCRtpSender.prototype.setTrack;
+ }
+}
- sdp += writeMediaSection(transceiver, commonCapabilities,
- 'answer', transceiver.stream, pc._dtlsRole);
- if (transceiver.rtcpParameters &&
- transceiver.rtcpParameters.reducedSize) {
- sdp += 'a=rtcp-rsize\r\n';
- }
- });
+},{"../utils":15,"./filtericeservers":8,"./getdisplaymedia":9,"./getusermedia":10,"rtcpeerconnection-shim":16}],8:[function(require,module,exports){
+/*
+ * Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree.
+ */
+/* eslint-env node */
+'use strict';
- var desc = new window.RTCSessionDescription({
- type: 'answer',
- sdp: sdp
- });
- return Promise.resolve(desc);
- };
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.filterIceServers = filterIceServers;
- RTCPeerConnection.prototype.addIceCandidate = function(candidate) {
- var sections;
- if (!candidate || candidate.candidate === '') {
- for (var j = 0; j < this.transceivers.length; j++) {
- if (this.transceivers[j].isDatachannel) {
- continue;
- }
- this.transceivers[j].iceTransport.addRemoteCandidate({});
- sections = SDPUtils.splitSections(this.remoteDescription.sdp);
- sections[j + 1] += 'a=end-of-candidates\r\n';
- this.remoteDescription.sdp = sections.join('');
- if (this.usingBundle) {
- break;
- }
+var _utils = require('../utils');
+
+var utils = _interopRequireWildcard(_utils);
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
+
+// Edge does not like
+// 1) stun: filtered after 14393 unless ?transport=udp is present
+// 2) turn: that does not have all of turn:host:port?transport=udp
+// 3) turn: with ipv6 addresses
+// 4) turn: occurring muliple times
+function filterIceServers(iceServers, edgeVersion) {
+ var hasTurn = false;
+ iceServers = JSON.parse(JSON.stringify(iceServers));
+ return iceServers.filter(function (server) {
+ if (server && (server.urls || server.url)) {
+ var urls = server.urls || server.url;
+ if (server.url && !server.urls) {
+ utils.deprecated('RTCIceServer.url', 'RTCIceServer.urls');
}
- } else if (!(candidate.sdpMLineIndex !== undefined || candidate.sdpMid)) {
- throw new TypeError('sdpMLineIndex or sdpMid required');
- } else if (!this.remoteDescription) {
- return Promise.reject(makeError('InvalidStateError',
- 'Can not add ICE candidate without a remote description'));
- } else {
- var sdpMLineIndex = candidate.sdpMLineIndex;
- if (candidate.sdpMid) {
- for (var i = 0; i < this.transceivers.length; i++) {
- if (this.transceivers[i].mid === candidate.sdpMid) {
- sdpMLineIndex = i;
- break;
- }
- }
+ var isString = typeof urls === 'string';
+ if (isString) {
+ urls = [urls];
}
- var transceiver = this.transceivers[sdpMLineIndex];
- if (transceiver) {
- if (transceiver.isDatachannel) {
- return Promise.resolve();
- }
- var cand = Object.keys(candidate.candidate).length > 0 ?
- SDPUtils.parseCandidate(candidate.candidate) : {};
- // Ignore Chrome's invalid candidates since Edge does not like them.
- if (cand.protocol === 'tcp' && (cand.port === 0 || cand.port === 9)) {
- return Promise.resolve();
- }
- // Ignore RTCP candidates, we assume RTCP-MUX.
- if (cand.component && cand.component !== 1) {
- return Promise.resolve();
- }
- // when using bundle, avoid adding candidates to the wrong
- // ice transport. And avoid adding candidates added in the SDP.
- if (sdpMLineIndex === 0 || (sdpMLineIndex > 0 &&
- transceiver.iceTransport !== this.transceivers[0].iceTransport)) {
- if (!maybeAddCandidate(transceiver.iceTransport, cand)) {
- return Promise.reject(makeError('OperationError',
- 'Can not add ICE candidate'));
- }
+ urls = urls.filter(function (url) {
+ // filter STUN unconditionally.
+ if (url.indexOf('stun:') === 0) {
+ return false;
}
- // update the remoteDescription.
- var candidateString = candidate.candidate.trim();
- if (candidateString.indexOf('a=') === 0) {
- candidateString = candidateString.substr(2);
+ var validTurn = url.startsWith('turn') && !url.startsWith('turn:[') && url.includes('transport=udp');
+ if (validTurn && !hasTurn) {
+ hasTurn = true;
+ return true;
}
- sections = SDPUtils.splitSections(this.remoteDescription.sdp);
- sections[sdpMLineIndex + 1] += 'a=' +
- (cand.type ? candidateString : 'end-of-candidates')
- + '\r\n';
- this.remoteDescription.sdp = sections.join('');
- } else {
- return Promise.reject(makeError('OperationError',
- 'Can not add ICE candidate'));
- }
+ return validTurn && !hasTurn;
+ });
+
+ delete server.url;
+ server.urls = isString ? urls[0] : urls;
+ return !!urls.length;
}
- return Promise.resolve();
- };
+ });
+}
- RTCPeerConnection.prototype.getStats = function() {
- var promises = [];
- this.transceivers.forEach(function(transceiver) {
- ['rtpSender', 'rtpReceiver', 'iceGatherer', 'iceTransport',
- 'dtlsTransport'].forEach(function(method) {
- if (transceiver[method]) {
- promises.push(transceiver[method].getStats());
- }
- });
- });
- var fixStatsType = function(stat) {
- return {
- inboundrtp: 'inbound-rtp',
- outboundrtp: 'outbound-rtp',
- candidatepair: 'candidate-pair',
- localcandidate: 'local-candidate',
- remotecandidate: 'remote-candidate'
- }[stat.type] || stat.type;
- };
- return new Promise(function(resolve) {
- // shim getStats with maplike support
- var results = new Map();
- Promise.all(promises).then(function(res) {
- res.forEach(function(result) {
- Object.keys(result).forEach(function(id) {
- result[id].type = fixStatsType(result[id]);
- results.set(id, result[id]);
- });
- });
- resolve(results);
- });
- });
- };
+},{"../utils":15}],9:[function(require,module,exports){
+/*
+ * Copyright (c) 2018 The adapter.js project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree.
+ */
+/* eslint-env node */
+'use strict';
- // legacy callback shims. Should be moved to adapter.js some days.
- var methods = ['createOffer', 'createAnswer'];
- methods.forEach(function(method) {
- var nativeMethod = RTCPeerConnection.prototype[method];
- RTCPeerConnection.prototype[method] = function() {
- var args = arguments;
- if (typeof args[0] === 'function' ||
- typeof args[1] === 'function') { // legacy
- return nativeMethod.apply(this, [arguments[2]])
- .then(function(description) {
- if (typeof args[0] === 'function') {
- args[0].apply(null, [description]);
- }
- }, function(error) {
- if (typeof args[1] === 'function') {
- args[1].apply(null, [error]);
- }
- });
- }
- return nativeMethod.apply(this, arguments);
- };
- });
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.shimGetDisplayMedia = shimGetDisplayMedia;
+function shimGetDisplayMedia(window) {
+ if (!('getDisplayMedia' in window.navigator)) {
+ return;
+ }
+ if (!window.navigator.mediaDevices) {
+ return;
+ }
+ if (window.navigator.mediaDevices && 'getDisplayMedia' in window.navigator.mediaDevices) {
+ return;
+ }
+ window.navigator.mediaDevices.getDisplayMedia = window.navigator.getDisplayMedia.bind(window.navigator.mediaDevices);
+}
- methods = ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate'];
- methods.forEach(function(method) {
- var nativeMethod = RTCPeerConnection.prototype[method];
- RTCPeerConnection.prototype[method] = function() {
- var args = arguments;
- if (typeof args[1] === 'function' ||
- typeof args[2] === 'function') { // legacy
- return nativeMethod.apply(this, arguments)
- .then(function() {
- if (typeof args[1] === 'function') {
- args[1].apply(null);
- }
- }, function(error) {
- if (typeof args[2] === 'function') {
- args[2].apply(null, [error]);
- }
- });
- }
- return nativeMethod.apply(this, arguments);
- };
- });
+},{}],10:[function(require,module,exports){
+/*
+ * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree.
+ */
+/* eslint-env node */
+'use strict';
- // getStats is special. It doesn't have a spec legacy method yet we support
- // getStats(something, cb) without error callbacks.
- ['getStats'].forEach(function(method) {
- var nativeMethod = RTCPeerConnection.prototype[method];
- RTCPeerConnection.prototype[method] = function() {
- var args = arguments;
- if (typeof args[1] === 'function') {
- return nativeMethod.apply(this, arguments)
- .then(function() {
- if (typeof args[1] === 'function') {
- args[1].apply(null);
- }
- });
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.shimGetUserMedia = shimGetUserMedia;
+function shimGetUserMedia(window) {
+ var navigator = window && window.navigator;
+
+ var shimError_ = function shimError_(e) {
+ return {
+ name: { PermissionDeniedError: 'NotAllowedError' }[e.name] || e.name,
+ message: e.message,
+ constraint: e.constraint,
+ toString: function toString() {
+ return this.name;
}
- return nativeMethod.apply(this, arguments);
};
- });
+ };
- return RTCPeerConnection;
-};
+ // getUserMedia error shim.
+ var origGetUserMedia = navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices);
+ navigator.mediaDevices.getUserMedia = function (c) {
+ return origGetUserMedia(c).catch(function (e) {
+ return Promise.reject(shimError_(e));
+ });
+ };
+}
-},{"sdp":2}],2:[function(require,module,exports){
- /* eslint-env node */
+},{}],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';
-// SDP helpers.
-var SDPUtils = {};
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.shimGetDisplayMedia = exports.shimGetUserMedia = undefined;
-// 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);
-};
+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; };
-// The RTCP CNAME used by all peerconnections from the same JS.
-SDPUtils.localCName = SDPUtils.generateIdentifier();
+var _getusermedia = require('./getusermedia');
-// 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';
- });
-};
+Object.defineProperty(exports, 'shimGetUserMedia', {
+ enumerable: true,
+ get: function get() {
+ return _getusermedia.shimGetUserMedia;
+ }
+});
-// 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;
- });
-};
+var _getdisplaymedia = require('./getdisplaymedia');
-// Parses an ICE candidate line. Sample input:
-// candidate:702786350 2 udp 41819902 8.8.8.8 60769 typ relay raddr 8.8.8.8
-// rport 55996"
-SDPUtils.parseCandidate = function(line) {
- var parts;
- // Parse both variants.
- if (line.indexOf('a=candidate:') === 0) {
- parts = line.substring(12).split(' ');
- } else {
- parts = line.substring(10).split(' ');
+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;
- var candidate = {
- foundation: parts[0],
- component: parseInt(parts[1], 10),
- protocol: parts[2].toLowerCase(),
- priority: parseInt(parts[3], 10),
- ip: parts[4],
- port: parseInt(parts[5], 10),
- // skip parts[6] == 'typ'
- type: parts[7]
- };
+var _utils = require('../utils');
- for (var i = 8; i < parts.length; i += 2) {
- switch (parts[i]) {
- case 'raddr':
- candidate.relatedAddress = parts[i + 1];
- break;
- case 'rport':
- candidate.relatedPort = parseInt(parts[i + 1], 10);
- break;
- case 'tcptype':
- candidate.tcpType = parts[i + 1];
- break;
- case 'ufrag':
- candidate.ufrag = parts[i + 1]; // for backward compability.
- candidate.usernameFragment = parts[i + 1];
- break;
- default: // extension handling, in particular ufrag
- candidate[parts[i]] = parts[i + 1];
- break;
- }
- }
- return candidate;
-};
+var utils = _interopRequireWildcard(_utils);
-// Translates a candidate object into SDP candidate attribute.
-SDPUtils.writeCandidate = function(candidate) {
- var sdp = [];
- sdp.push(candidate.foundation);
- sdp.push(candidate.component);
- sdp.push(candidate.protocol.toUpperCase());
- sdp.push(candidate.priority);
- sdp.push(candidate.ip);
- sdp.push(candidate.port);
+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 type = candidate.type;
- sdp.push('typ');
- sdp.push(type);
- if (type !== 'host' && candidate.relatedAddress &&
- candidate.relatedPort) {
- sdp.push('raddr');
- sdp.push(candidate.relatedAddress); // was: relAddr
- sdp.push('rport');
- sdp.push(candidate.relatedPort); // was: relPort
+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 };
+ }
+ });
}
- if (candidate.tcpType && candidate.protocol.toLowerCase() === 'tcp') {
- sdp.push('tcptype');
- sdp.push(candidate.tcpType);
+}
+
+function shimPeerConnection(window) {
+ var browserDetails = utils.detectBrowser(window);
+
+ if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) !== 'object' || !(window.RTCPeerConnection || window.mozRTCPeerConnection)) {
+ return; // probably media.peerconnection.enabled=false in about:config
}
- if (candidate.ufrag) {
- sdp.push('ufrag');
- sdp.push(candidate.ufrag);
+ if (!window.RTCPeerConnection && window.mozRTCPeerConnection) {
+ // very basic support for old versions.
+ window.RTCPeerConnection = window.mozRTCPeerConnection;
}
- return 'candidate:' + sdp.join(' ');
-};
-// Parses an ice-options line, returns an array of option tags.
-// a=ice-options:foo bar
-SDPUtils.parseIceOptions = function(line) {
- return line.substr(14).split(' ');
-}
+ // shim away need for obsolete RTCIceCandidate/RTCSessionDescription.
+ ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate'].forEach(function (method) {
+ var nativeMethod = window.RTCPeerConnection.prototype[method];
+ window.RTCPeerConnection.prototype[method] = function () {
+ arguments[0] = new (method === 'addIceCandidate' ? window.RTCIceCandidate : window.RTCSessionDescription)(arguments[0]);
+ return nativeMethod.apply(this, arguments);
+ };
+ });
-// Parses an rtpmap line, returns RTCRtpCoddecParameters. Sample input:
-// a=rtpmap:111 opus/48000/2
-SDPUtils.parseRtpMap = function(line) {
- var parts = line.substr(9).split(' ');
- var parsed = {
- payloadType: parseInt(parts.shift(), 10) // was: id
+ // support for addIceCandidate(null or undefined)
+ var nativeAddIceCandidate = window.RTCPeerConnection.prototype.addIceCandidate;
+ window.RTCPeerConnection.prototype.addIceCandidate = function () {
+ if (!arguments[0]) {
+ if (arguments[1]) {
+ arguments[1].apply(null);
+ }
+ return Promise.resolve();
+ }
+ return nativeAddIceCandidate.apply(this, arguments);
};
- parts = parts[0].split('/');
+ var modernStatsTypes = {
+ inboundrtp: 'inbound-rtp',
+ outboundrtp: 'outbound-rtp',
+ candidatepair: 'candidate-pair',
+ localcandidate: 'local-candidate',
+ remotecandidate: 'remote-candidate'
+ };
- parsed.name = parts[0];
- parsed.clockRate = parseInt(parts[1], 10); // was: clockrate
- // was: channels
- parsed.numChannels = parts.length === 3 ? parseInt(parts[2], 10) : 1;
- return parsed;
-};
+ var nativeGetStats = window.RTCPeerConnection.prototype.getStats;
+ window.RTCPeerConnection.prototype.getStats = function (selector, onSucc, onErr) {
+ 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);
+ };
+}
-// Generate an a=rtpmap line from RTCRtpCodecCapability or
-// RTCRtpCodecParameters.
-SDPUtils.writeRtpMap = function(codec) {
- var pt = codec.payloadType;
- if (codec.preferredPayloadType !== undefined) {
- pt = codec.preferredPayloadType;
+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 () {
+ var _this = this;
+
+ var senders = origGetSenders.apply(this, []);
+ senders.forEach(function (sender) {
+ return sender._pc = _this;
+ });
+ return senders;
+ };
}
- return 'a=rtpmap:' + pt + ' ' + codec.name + '/' + codec.clockRate +
- (codec.numChannels !== 1 ? '/' + codec.numChannels : '') + '\r\n';
-};
-// Parses an a=extmap line (headerextension from RFC 5285). Sample input:
-// a=extmap:2 urn:ietf:params:rtp-hdrext:toffset
-// a=extmap:2/sendonly urn:ietf:params:rtp-hdrext:toffset
-SDPUtils.parseExtmap = function(line) {
- var parts = line.substr(9).split(' ');
- return {
- id: parseInt(parts[0], 10),
- direction: parts[0].indexOf('/') > 0 ? parts[0].split('/')[1] : 'sendrecv',
- uri: parts[1]
+ var origAddTrack = window.RTCPeerConnection.prototype.addTrack;
+ if (origAddTrack) {
+ window.RTCPeerConnection.prototype.addTrack = function () {
+ var sender = origAddTrack.apply(this, arguments);
+ sender._pc = this;
+ return sender;
+ };
+ }
+ window.RTCRtpSender.prototype.getStats = function () {
+ return this.track ? this._pc.getStats(this.track) : Promise.resolve(new Map());
};
-};
+}
-// Generates a=extmap line from RTCRtpHeaderExtensionParameters or
-// RTCRtpHeaderExtension.
-SDPUtils.writeExtmap = function(headerExtension) {
- return 'a=extmap:' + (headerExtension.id || headerExtension.preferredId) +
- (headerExtension.direction && headerExtension.direction !== 'sendrecv'
- ? '/' + headerExtension.direction
- : '') +
- ' ' + headerExtension.uri + '\r\n';
-};
-
-// Parses an ftmp line, returns dictionary. Sample input:
-// a=fmtp:96 vbr=on;cng=on
-// Also deals with vbr=on; cng=on
-SDPUtils.parseFmtp = function(line) {
- var parsed = {};
- var kv;
- var parts = line.substr(line.indexOf(' ') + 1).split(';');
- for (var j = 0; j < parts.length; j++) {
- kv = parts[j].trim().split('=');
- parsed[kv[0].trim()] = kv[1];
+function shimReceiverGetStats(window) {
+ if (!((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCPeerConnection && window.RTCRtpSender)) {
+ return;
}
- return parsed;
-};
-
-// Generates an a=ftmp line from RTCRtpCodecCapability or RTCRtpCodecParameters.
-SDPUtils.writeFmtp = function(codec) {
- var line = '';
- var pt = codec.payloadType;
- if (codec.preferredPayloadType !== undefined) {
- pt = codec.preferredPayloadType;
+ if (window.RTCRtpSender && 'getStats' in window.RTCRtpReceiver.prototype) {
+ return;
}
- if (codec.parameters && Object.keys(codec.parameters).length) {
- var params = [];
- Object.keys(codec.parameters).forEach(function(param) {
- params.push(param + '=' + codec.parameters[param]);
- });
- line += 'a=fmtp:' + pt + ' ' + params.join(';') + '\r\n';
+ var origGetReceivers = window.RTCPeerConnection.prototype.getReceivers;
+ if (origGetReceivers) {
+ window.RTCPeerConnection.prototype.getReceivers = function () {
+ var _this2 = this;
+
+ var receivers = origGetReceivers.apply(this, []);
+ receivers.forEach(function (receiver) {
+ return receiver._pc = _this2;
+ });
+ return receivers;
+ };
}
- return line;
-};
-
-// Parses an rtcp-fb line, returns RTCPRtcpFeedback object. Sample input:
-// a=rtcp-fb:98 nack rpsi
-SDPUtils.parseRtcpFb = function(line) {
- var parts = line.substr(line.indexOf(' ') + 1).split(' ');
- return {
- type: parts.shift(),
- parameter: parts.join(' ')
+ utils.wrapPeerConnectionEvent(window, 'track', function (e) {
+ e.receiver._pc = e.srcElement;
+ return e;
+ });
+ window.RTCRtpReceiver.prototype.getStats = function () {
+ return this._pc.getStats(this.track);
};
-};
-// 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';
- });
+}
+
+function shimRemoveStream(window) {
+ if (!window.RTCPeerConnection || 'removeStream' in window.RTCPeerConnection.prototype) {
+ return;
}
- return lines;
-};
+ window.RTCPeerConnection.prototype.removeStream = function (stream) {
+ var _this3 = this;
-// Parses an RFC 5576 ssrc media attribute. Sample input:
-// a=ssrc:3735928559 cname:something
-SDPUtils.parseSsrcMedia = function(line) {
- var sp = line.indexOf(' ');
- var parts = {
- ssrc: parseInt(line.substr(7, sp - 7), 10)
+ utils.deprecated('removeStream', 'removeTrack');
+ this.getSenders().forEach(function (sender) {
+ if (sender.track && stream.getTracks().includes(sender.track)) {
+ _this3.removeTrack(sender);
+ }
+ });
};
- 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;
-};
+}
-// 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);
+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;
}
}
-SDPUtils.parseFingerprint = function(line) {
- var parts = line.substr(14).split(' ');
- return {
- algorithm: parts[0].toLowerCase(), // algorithm is case-sensitive in Edge.
- value: parts[1]
- };
-};
+},{"../utils":15,"./getdisplaymedia":12,"./getusermedia":13}],12:[function(require,module,exports){
+/*
+ * Copyright (c) 2018 The adapter.js project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree.
+ */
+/* eslint-env node */
+'use strict';
-// Extracts DTLS parameters from SDP media section or sessionpart.
-// FIXME: for consistency with other functions this should only
-// get the fingerprint line as input. See also getIceParameters.
-SDPUtils.getDtlsParameters = function(mediaSection, sessionpart) {
- var lines = SDPUtils.matchPrefix(mediaSection + sessionpart,
- 'a=fingerprint:');
- // Note: a=setup line is ignored since we use the 'auto' role.
- // Note2: 'algorithm' is not case sensitive except in Edge.
- return {
- role: 'auto',
- fingerprints: lines.map(SDPUtils.parseFingerprint)
+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 (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);
};
-};
+}
-// 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 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 lines = SDPUtils.splitLines(mediaSection);
- // Search in session part, too.
- lines = lines.concat(SDPUtils.splitLines(sessionpart));
- var iceParameters = {
- usernameFragment: lines.filter(function(line) {
- return line.indexOf('a=ice-ufrag:') === 0;
- })[0].substr(12),
- password: lines.filter(function(line) {
- return line.indexOf('a=ice-pwd:') === 0;
- })[0].substr(10)
- };
- return iceParameters;
-};
+},{}],13:[function(require,module,exports){
+/*
+ * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree.
+ */
+/* eslint-env node */
+'use strict';
-// Serializes ICE parameters to SDP.
-SDPUtils.writeIceParameters = function(params) {
- return 'a=ice-ufrag:' + params.usernameFragment + '\r\n' +
- 'a=ice-pwd:' + params.password + '\r\n';
-};
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
-// 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;
-};
+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; };
-// Generates parts of the SDP media section describing the capabilities /
-// parameters.
-SDPUtils.writeRtpDescription = function(kind, caps) {
- var sdp = '';
+exports.shimGetUserMedia = shimGetUserMedia;
- // Build the mline.
- sdp += 'm=' + kind + ' ';
- sdp += caps.codecs.length > 0 ? '9' : '0'; // reject if no codecs.
- sdp += ' UDP/TLS/RTP/SAVPF ';
- sdp += caps.codecs.map(function(codec) {
- if (codec.preferredPayloadType !== undefined) {
- return codec.preferredPayloadType;
- }
- return codec.payloadType;
- }).join(' ') + '\r\n';
+var _utils = require('../utils');
- sdp += 'c=IN IP4 0.0.0.0\r\n';
- sdp += 'a=rtcp:9 IN IP4 0.0.0.0\r\n';
+var utils = _interopRequireWildcard(_utils);
- // Add a=rtpmap lines for each codec. Also fmtp and rtcp-fb.
- caps.codecs.forEach(function(codec) {
- sdp += SDPUtils.writeRtpMap(codec);
- sdp += SDPUtils.writeFmtp(codec);
- sdp += SDPUtils.writeRtcpFb(codec);
- });
- var maxptime = 0;
- caps.codecs.forEach(function(codec) {
- if (codec.maxptime > maxptime) {
- maxptime = codec.maxptime;
- }
- });
- if (maxptime > 0) {
- sdp += 'a=maxptime:' + maxptime + '\r\n';
- }
- sdp += 'a=rtcp-mux\r\n';
+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; } }
- caps.headerExtensions.forEach(function(extension) {
- sdp += SDPUtils.writeExtmap(extension);
- });
- // FIXME: write fecMechanisms.
- return sdp;
-};
+function shimGetUserMedia(window) {
+ var browserDetails = utils.detectBrowser(window);
+ var navigator = window && window.navigator;
+ var MediaStreamTrack = window && window.MediaStreamTrack;
-// Parses the SDP media section and returns an array of
-// RTCRtpEncodingParameters.
-SDPUtils.parseRtpEncodingParameters = function(mediaSection) {
- var encodingParameters = [];
- var description = SDPUtils.parseRtpParameters(mediaSection);
- var hasRed = description.fecMechanisms.indexOf('RED') !== -1;
- var hasUlpfec = description.fecMechanisms.indexOf('ULPFEC') !== -1;
+ 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);
+ };
- // filter a=ssrc:... cname:, ignore PlanB-msid
- var ssrcs = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
- .map(function(line) {
- return SDPUtils.parseSsrcMedia(line);
- })
- .filter(function(parts) {
- return parts.attribute === 'cname';
- });
- var primarySsrc = ssrcs.length > 0 && ssrcs[0].ssrc;
- var secondarySsrc;
+ 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 flows = SDPUtils.matchPrefix(mediaSection, 'a=ssrc-group:FID')
- .map(function(line) {
- var parts = line.split(' ');
- parts.shift();
- 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];
- }
+ 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);
+ };
- description.codecs.forEach(function(codec) {
- if (codec.name.toUpperCase() === 'RTX' && codec.parameters.apt) {
- var encParam = {
- ssrc: primarySsrc,
- codecPayloadType: parseInt(codec.parameters.apt, 10),
- rtx: {
- ssrc: secondarySsrc
- }
+ 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;
};
- encodingParameters.push(encParam);
- if (hasRed) {
- encParam = JSON.parse(JSON.stringify(encParam));
- encParam.fec = {
- ssrc: secondarySsrc,
- 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;
+ 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]);
+ };
}
- encodingParameters.forEach(function(params) {
- params.maxBitrate = bandwidth;
- });
}
- return encodingParameters;
-};
+}
-// parses http://draft.ortc.org/#rtcrtcpparameters*
-SDPUtils.parseRtcpParameters = function(mediaSection) {
- var rtcpParameters = {};
+},{"../utils":15}],14:[function(require,module,exports){
+/*
+ * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree.
+ */
+'use strict';
- var cname;
- // 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;
+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;
+
+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 () {
+ 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 (stream) {
+ var _this = this;
- // 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;
+ if (!this._localStreams) {
+ this._localStreams = [];
+ }
+ if (!this._localStreams.includes(stream)) {
+ this._localStreams.push(stream);
+ }
+ stream.getTracks().forEach(function (track) {
+ return _addTrack.call(_this, track, stream);
+ });
+ };
- // 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;
+ window.RTCPeerConnection.prototype.addTrack = function (track, stream) {
+ if (stream) {
+ if (!this._localStreams) {
+ this._localStreams = [stream];
+ } else if (!this._localStreams.includes(stream)) {
+ this._localStreams.push(stream);
+ }
+ }
+ return _addTrack.call(this, track, stream);
+ };
+ }
+ if (!('removeStream' in window.RTCPeerConnection.prototype)) {
+ window.RTCPeerConnection.prototype.removeStream = function (stream) {
+ var _this2 = this;
- return rtcpParameters;
-};
+ 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)) {
+ _this2.removeTrack(sender);
+ }
+ });
+ };
+ }
+}
-// parses either a=msid: or a=ssrc:... msid lines and returns
-// the id of the MediaStream and MediaStreamTrack.
-SDPUtils.parseMsid = function(mediaSection) {
- var parts;
- var spec = SDPUtils.matchPrefix(mediaSection, 'a=msid:');
- if (spec.length === 1) {
- parts = spec[0].substr(7).split(' ');
- return {stream: parts[0], track: parts[1]};
+function shimRemoteStreamsAPI(window) {
+ if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) !== 'object' || !window.RTCPeerConnection) {
+ return;
}
- var planB = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
- .map(function(line) {
- return SDPUtils.parseSsrcMedia(line);
- })
- .filter(function(parts) {
- return parts.attribute === 'msid';
- });
- if (planB.length > 0) {
- parts = planB[0].value.split(' ');
- return {stream: parts[0], track: parts[1]};
+ if (!('getRemoteStreams' in window.RTCPeerConnection.prototype)) {
+ window.RTCPeerConnection.prototype.getRemoteStreams = function () {
+ 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 _this3 = this;
-// 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);
-};
+ 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 (!_this3._remoteStreams) {
+ _this3._remoteStreams = [];
+ }
+ if (_this3._remoteStreams.includes(stream)) {
+ return;
+ }
+ _this3._remoteStreams.push(stream);
+ var event = new Event('addstream');
+ event.stream = stream;
+ _this3.dispatchEvent(event);
+ });
+ });
+ }
+ });
+ var origSetRemoteDescription = window.RTCPeerConnection.prototype.setRemoteDescription;
+ window.RTCPeerConnection.prototype.setRemoteDescription = function () {
+ 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);
+ };
+ }
+}
-// Write boilder plate for start of SDP
-// sessId argument is optional - if not supplied it will
-// be generated randomly
-// sessVersion is optional and defaults to 2
-SDPUtils.writeSessionBoilerplate = function(sessId, sessVer) {
- var sessionId;
- var version = sessVer !== undefined ? sessVer : 2;
- if (sessId) {
- sessionId = sessId;
- } else {
- sessionId = SDPUtils.generateSessionId();
+function shimCallbacksAPI(window) {
+ if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) !== 'object' || !window.RTCPeerConnection) {
+ return;
}
- // FIXME: sess-id should be an NTP timestamp.
- return 'v=0\r\n' +
- 'o=thisisadapterortc ' + sessionId + ' ' + version + ' IN IP4 127.0.0.1\r\n' +
- 's=-\r\n' +
- 't=0 0\r\n';
-};
+ var prototype = window.RTCPeerConnection.prototype;
+ var createOffer = prototype.createOffer;
+ var createAnswer = prototype.createAnswer;
+ var setLocalDescription = prototype.setLocalDescription;
+ var setRemoteDescription = prototype.setRemoteDescription;
+ var addIceCandidate = prototype.addIceCandidate;
+
+ prototype.createOffer = function (successCallback, failureCallback) {
+ var options = arguments.length >= 2 ? arguments[2] : arguments[0];
+ var promise = createOffer.apply(this, [options]);
+ if (!failureCallback) {
+ return promise;
+ }
+ promise.then(successCallback, failureCallback);
+ return Promise.resolve();
+ };
-SDPUtils.writeMediaSection = function(transceiver, caps, type, stream) {
- var sdp = SDPUtils.writeRtpDescription(transceiver.kind, caps);
+ prototype.createAnswer = function (successCallback, failureCallback) {
+ var options = arguments.length >= 2 ? arguments[2] : arguments[0];
+ var promise = createAnswer.apply(this, [options]);
+ if (!failureCallback) {
+ return promise;
+ }
+ promise.then(successCallback, failureCallback);
+ return Promise.resolve();
+ };
- // Map ICE parameters (ufrag, pwd) to SDP.
- sdp += SDPUtils.writeIceParameters(
- transceiver.iceGatherer.getLocalParameters());
+ 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;
- // Map DTLS parameters to SDP.
- sdp += SDPUtils.writeDtlsParameters(
- transceiver.dtlsTransport.getLocalParameters(),
- type === 'offer' ? 'actpass' : 'active');
+ 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;
- sdp += 'a=mid:' + transceiver.mid + '\r\n';
+ 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;
+}
- if (transceiver.direction) {
- sdp += 'a=' + transceiver.direction + '\r\n';
- } else if (transceiver.rtpSender && transceiver.rtpReceiver) {
- sdp += 'a=sendrecv\r\n';
- } else if (transceiver.rtpSender) {
- sdp += 'a=sendonly\r\n';
- } else if (transceiver.rtpReceiver) {
- sdp += 'a=recvonly\r\n';
- } else {
- sdp += 'a=inactive\r\n';
+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 (transceiver.rtpSender) {
- // spec.
- var msid = 'msid:' + stream.id + ' ' +
- transceiver.rtpSender.track.id + '\r\n';
- sdp += 'a=' + msid;
+ if (!navigator.getUserMedia && navigator.mediaDevices && navigator.mediaDevices.getUserMedia) {
+ navigator.getUserMedia = function (constraints, cb, errcb) {
+ navigator.mediaDevices.getUserMedia(constraints).then(cb, errcb);
+ }.bind(navigator);
+ }
+}
- // for Chrome.
- sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
- ' ' + msid;
- if (transceiver.sendEncodingParameters[0].rtx) {
- sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
- ' ' + msid;
- sdp += 'a=ssrc-group:FID ' +
- transceiver.sendEncodingParameters[0].ssrc + ' ' +
- transceiver.sendEncodingParameters[0].rtx.ssrc +
- '\r\n';
- }
+function shimConstraints(constraints) {
+ if (constraints && constraints.video !== undefined) {
+ return Object.assign({}, constraints, { video: utils.compactObject(constraints.video) });
}
- // FIXME: this should be written by writeRtpDescription.
- sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
- ' cname:' + SDPUtils.localCName + '\r\n';
- if (transceiver.rtpSender && transceiver.sendEncodingParameters[0].rtx) {
- sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
- ' cname:' + SDPUtils.localCName + '\r\n';
- }
- return sdp;
-};
-// Gets the direction from the mediaSection or the sessionpart.
-SDPUtils.getDirection = function(mediaSection, sessionpart) {
- // Look for sendrecv, sendonly, recvonly, inactive, default to sendrecv.
- var lines = SDPUtils.splitLines(mediaSection);
- for (var i = 0; i < lines.length; i++) {
- switch (lines[i]) {
- case 'a=sendrecv':
- case 'a=sendonly':
- case 'a=recvonly':
- case 'a=inactive':
- return lines[i].substr(2);
- default:
- // FIXME: What should happen here?
+ return constraints;
+}
+
+function shimRTCIceServerUrls(window) {
+ // migrate from non-spec RTCIceServer.url to RTCIceServer.urls
+ var OrigPeerConnection = window.RTCPeerConnection;
+ window.RTCPeerConnection = function (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 window.RTCPeerConnection) {
+ Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
+ get: function get() {
+ return OrigPeerConnection.generateCertificate;
+ }
+ });
}
- 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);
-};
+function shimTrackEventTransceiver(window) {
+ // Add event.transceiver member over deprecated event.receiver
+ if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCPeerConnection && 'receiver' in window.RTCTrackEvent.prototype &&
+ // can't check 'transceiver' in window.RTCTrackEvent.prototype, as it is
+ // defined for some reason even when window.RTCTransceiver is not.
+ !window.RTCTransceiver) {
+ Object.defineProperty(window.RTCTrackEvent.prototype, 'transceiver', {
+ get: function get() {
+ return { receiver: this.receiver };
+ }
+ });
+ }
+}
-SDPUtils.isRejected = function(mediaSection) {
- return mediaSection.split(' ', 2)[1] === '0';
-};
+function shimCreateOfferLegacy(window) {
+ var origCreateOffer = window.RTCPeerConnection.prototype.createOffer;
+ window.RTCPeerConnection.prototype.createOffer = function (offerOptions) {
+ if (offerOptions) {
+ if (typeof offerOptions.offerToReceiveAudio !== 'undefined') {
+ // support bit values
+ offerOptions.offerToReceiveAudio = !!offerOptions.offerToReceiveAudio;
+ }
+ var audioTransceiver = this.getTransceivers().find(function (transceiver) {
+ return transceiver.sender.track && transceiver.sender.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');
+ }
-SDPUtils.parseMLine = function(mediaSection) {
- var lines = SDPUtils.splitLines(mediaSection);
- var mline = lines[0].split(' ');
- return {
- kind: mline[0].substr(2),
- port: parseInt(mline[1], 10),
- protocol: mline[2],
- fmt: mline.slice(3).join(' ')
+ if (typeof offerOptions.offerToReceiveVideo !== 'undefined') {
+ // support bit values
+ offerOptions.offerToReceiveVideo = !!offerOptions.offerToReceiveVideo;
+ }
+ var videoTransceiver = this.getTransceivers().find(function (transceiver) {
+ return transceiver.sender.track && transceiver.sender.track.kind === 'video';
+ });
+ if (offerOptions.offerToReceiveVideo === false && videoTransceiver) {
+ if (videoTransceiver.direction === 'sendrecv') {
+ if (videoTransceiver.setDirection) {
+ videoTransceiver.setDirection('sendonly');
+ } else {
+ videoTransceiver.direction = 'sendonly';
+ }
+ } else if (videoTransceiver.direction === 'recvonly') {
+ if (videoTransceiver.setDirection) {
+ videoTransceiver.setDirection('inactive');
+ } else {
+ videoTransceiver.direction = 'inactive';
+ }
+ }
+ } else if (offerOptions.offerToReceiveVideo === true && !videoTransceiver) {
+ this.addTransceiver('video');
+ }
+ }
+ return origCreateOffer.apply(this, arguments);
};
-};
-
-// Expose public methods.
-if (typeof module === 'object') {
- module.exports = SDPUtils;
}
-},{}],3:[function(require,module,exports){
-(function (global){
+},{"../utils":15}],15:[function(require,module,exports){
/*
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
*
* that can be found in the LICENSE file in the root of the source
* tree.
*/
- /* eslint-env node */
-
+/* eslint-env node */
'use strict';
-var adapterFactory = require('./adapter_factory.js');
-module.exports = adapterFactory({window: global.window});
+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;
+
+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) {
+ cb(modifiedEvent);
+ }
+ };
+ this._eventMap = this._eventMap || {};
+ this._eventMap[cb] = wrappedCallback;
+ return nativeAddEventListener.apply(this, [nativeEventName, wrappedCallback]);
+ };
+
+ var nativeRemoveEventListener = proto.removeEventListener;
+ proto.removeEventListener = function (nativeEventName, cb) {
+ if (nativeEventName !== eventNameToWrap || !this._eventMap || !this._eventMap[cb]) {
+ return nativeRemoveEventListener.apply(this, arguments);
+ }
+ var unwrappedCb = this._eventMap[cb];
+ delete this._eventMap[cb];
+ 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) {
+ var navigator = window.navigator;
+
+ // Returned result object.
+
+ var result = { browser: null, version: null };
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./adapter_factory.js":4}],4:[function(require,module,exports){
+ // Fail early if it's not a browser
+ if (typeof window === 'undefined' || !window.navigator) {
+ result.browser = 'Not a browser.';
+ return result;
+ }
+
+ if (navigator.mozGetUserMedia) {
+ // Firefox.
+ result.browser = 'firefox';
+ result.version = extractVersion(navigator.userAgent, /Firefox\/(\d+)\./, 1);
+ } else if (navigator.webkitGetUserMedia) {
+ // Chrome, Chromium, Webview, Opera.
+ // Version matches Chrome/WebRTC version.
+ result.browser = 'chrome';
+ result.version = extractVersion(navigator.userAgent, /Chrom(e|ium)\/(\d+)\./, 2);
+ } else if (navigator.mediaDevices && navigator.userAgent.match(/Edge\/(\d+).(\d+)$/)) {
+ // Edge.
+ result.browser = 'edge';
+ result.version = extractVersion(navigator.userAgent, /Edge\/(\d+).(\d+)$/, 2);
+ } else if (window.RTCPeerConnection && navigator.userAgent.match(/AppleWebKit\/(\d+)\./)) {
+ // Safari.
+ result.browser = 'safari';
+ result.version = extractVersion(navigator.userAgent, /AppleWebKit\/(\d+)\./, 1);
+ } else {
+ // Default fallthrough: not supported.
+ result.browser = 'Not a supported browser.';
+ return result;
+ }
+
+ return result;
+}
+
+/**
+ * Remove all empty objects and undefined values
+ * from a nested object -- an enhanced and vanilla version
+ * of Lodash's `compact`.
+ */
+function compactObject(data) {
+ if ((typeof data === 'undefined' ? 'undefined' : _typeof(data)) !== 'object') {
+ return data;
+ }
+
+ return Object.keys(data).reduce(function (accumulator, key) {
+ var isObject = _typeof(data[key]) === 'object';
+ var value = isObject ? compactObject(data[key]) : data[key];
+ var isEmptyObject = isObject && !Object.keys(value).length;
+ if (value === undefined || isEmptyObject) {
+ return accumulator;
+ }
+
+ return Object.assign(accumulator, _defineProperty({}, key, value));
+ }, {});
+}
+
+},{}],16:[function(require,module,exports){
/*
- * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
+ * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree.
*/
/* eslint-env node */
-
'use strict';
-var utils = require('./utils');
-// Shimming starts here.
-module.exports = function(dependencies, opts) {
- var window = dependencies && dependencies.window;
+var SDPUtils = require('sdp');
+
+function fixStatsType(stat) {
+ return {
+ inboundrtp: 'inbound-rtp',
+ outboundrtp: 'outbound-rtp',
+ candidatepair: 'candidate-pair',
+ localcandidate: 'local-candidate',
+ remotecandidate: 'remote-candidate'
+ }[stat.type] || stat.type;
+}
+
+function writeMediaSection(transceiver, caps, type, stream, dtlsRole) {
+ var sdp = SDPUtils.writeRtpDescription(transceiver.kind, caps);
+
+ // Map ICE parameters (ufrag, pwd) to SDP.
+ sdp += SDPUtils.writeIceParameters(
+ transceiver.iceGatherer.getLocalParameters());
+
+ // Map DTLS parameters to SDP.
+ sdp += SDPUtils.writeDtlsParameters(
+ transceiver.dtlsTransport.getLocalParameters(),
+ type === 'offer' ? 'actpass' : dtlsRole || 'active');
+
+ sdp += 'a=mid:' + transceiver.mid + '\r\n';
+
+ if (transceiver.rtpSender && transceiver.rtpReceiver) {
+ sdp += 'a=sendrecv\r\n';
+ } else if (transceiver.rtpSender) {
+ sdp += 'a=sendonly\r\n';
+ } else if (transceiver.rtpReceiver) {
+ sdp += 'a=recvonly\r\n';
+ } else {
+ sdp += 'a=inactive\r\n';
+ }
+
+ if (transceiver.rtpSender) {
+ var trackId = transceiver.rtpSender._initialTrackId ||
+ transceiver.rtpSender.track.id;
+ transceiver.rtpSender._initialTrackId = trackId;
+ // spec.
+ var msid = 'msid:' + (stream ? stream.id : '-') + ' ' +
+ trackId + '\r\n';
+ sdp += 'a=' + msid;
+ // for Chrome. Legacy should no longer be required.
+ sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
+ ' ' + msid;
+
+ // RTX
+ if (transceiver.sendEncodingParameters[0].rtx) {
+ sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
+ ' ' + msid;
+ sdp += 'a=ssrc-group:FID ' +
+ transceiver.sendEncodingParameters[0].ssrc + ' ' +
+ transceiver.sendEncodingParameters[0].rtx.ssrc +
+ '\r\n';
+ }
+ }
+ // FIXME: this should be written by writeRtpDescription.
+ sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
+ ' cname:' + SDPUtils.localCName + '\r\n';
+ if (transceiver.rtpSender && transceiver.sendEncodingParameters[0].rtx) {
+ sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
+ ' cname:' + SDPUtils.localCName + '\r\n';
+ }
+ return sdp;
+}
+
+// Edge does not like
+// 1) stun: filtered after 14393 unless ?transport=udp is present
+// 2) turn: that does not have all of turn:host:port?transport=udp
+// 3) turn: with ipv6 addresses
+// 4) turn: occurring muliple times
+function filterIceServers(iceServers, edgeVersion) {
+ var hasTurn = false;
+ iceServers = JSON.parse(JSON.stringify(iceServers));
+ return iceServers.filter(function(server) {
+ if (server && (server.urls || server.url)) {
+ var urls = server.urls || server.url;
+ if (server.url && !server.urls) {
+ console.warn('RTCIceServer.url is deprecated! Use urls instead.');
+ }
+ var isString = typeof urls === 'string';
+ if (isString) {
+ urls = [urls];
+ }
+ urls = urls.filter(function(url) {
+ var validTurn = url.indexOf('turn:') === 0 &&
+ url.indexOf('transport=udp') !== -1 &&
+ url.indexOf('turn:[') === -1 &&
+ !hasTurn;
+
+ if (validTurn) {
+ hasTurn = true;
+ return true;
+ }
+ return url.indexOf('stun:') === 0 && edgeVersion >= 14393 &&
+ url.indexOf('?transport=udp') === -1;
+ });
+
+ delete server.url;
+ server.urls = isString ? urls[0] : urls;
+ return !!urls.length;
+ }
+ });
+}
+
+// Determines the intersection of local and remote capabilities.
+function getCommonCapabilities(localCapabilities, remoteCapabilities) {
+ var commonCapabilities = {
+ codecs: [],
+ headerExtensions: [],
+ fecMechanisms: []
+ };
+
+ var findCodecByPayloadType = function(pt, codecs) {
+ pt = parseInt(pt, 10);
+ for (var i = 0; i < codecs.length; i++) {
+ if (codecs[i].payloadType === pt ||
+ codecs[i].preferredPayloadType === pt) {
+ return codecs[i];
+ }
+ }
+ };
+
+ var rtxCapabilityMatches = function(lRtx, rRtx, lCodecs, rCodecs) {
+ var lCodec = findCodecByPayloadType(lRtx.parameters.apt, lCodecs);
+ var rCodec = findCodecByPayloadType(rRtx.parameters.apt, rCodecs);
+ return lCodec && rCodec &&
+ lCodec.name.toLowerCase() === rCodec.name.toLowerCase();
+ };
+
+ localCapabilities.codecs.forEach(function(lCodec) {
+ for (var i = 0; i < remoteCapabilities.codecs.length; i++) {
+ var rCodec = remoteCapabilities.codecs[i];
+ if (lCodec.name.toLowerCase() === rCodec.name.toLowerCase() &&
+ lCodec.clockRate === rCodec.clockRate) {
+ if (lCodec.name.toLowerCase() === 'rtx' &&
+ lCodec.parameters && rCodec.parameters.apt) {
+ // for RTX we need to find the local rtx that has a apt
+ // which points to the same local codec as the remote one.
+ if (!rtxCapabilityMatches(lCodec, rCodec,
+ localCapabilities.codecs, remoteCapabilities.codecs)) {
+ continue;
+ }
+ }
+ rCodec = JSON.parse(JSON.stringify(rCodec)); // deepcopy
+ // number of channels is the highest common number of channels
+ rCodec.numChannels = Math.min(lCodec.numChannels,
+ rCodec.numChannels);
+ // push rCodec so we reply with offerer payload type
+ commonCapabilities.codecs.push(rCodec);
+
+ // determine common feedback mechanisms
+ rCodec.rtcpFeedback = rCodec.rtcpFeedback.filter(function(fb) {
+ for (var j = 0; j < lCodec.rtcpFeedback.length; j++) {
+ if (lCodec.rtcpFeedback[j].type === fb.type &&
+ lCodec.rtcpFeedback[j].parameter === fb.parameter) {
+ return true;
+ }
+ }
+ return false;
+ });
+ // FIXME: also need to determine .parameters
+ // see https://github.com/openpeer/ortc/issues/569
+ break;
+ }
+ }
+ });
+
+ localCapabilities.headerExtensions.forEach(function(lHeaderExtension) {
+ for (var i = 0; i < remoteCapabilities.headerExtensions.length;
+ i++) {
+ var rHeaderExtension = remoteCapabilities.headerExtensions[i];
+ if (lHeaderExtension.uri === rHeaderExtension.uri) {
+ commonCapabilities.headerExtensions.push(rHeaderExtension);
+ break;
+ }
+ }
+ });
+
+ // FIXME: fecMechanisms
+ return commonCapabilities;
+}
+
+// is action=setLocalDescription with type allowed in signalingState
+function isActionAllowedInSignalingState(action, type, signalingState) {
+ return {
+ offer: {
+ setLocalDescription: ['stable', 'have-local-offer'],
+ setRemoteDescription: ['stable', 'have-remote-offer']
+ },
+ answer: {
+ setLocalDescription: ['have-remote-offer', 'have-local-pranswer'],
+ setRemoteDescription: ['have-local-offer', 'have-remote-pranswer']
+ }
+ }[type][action].indexOf(signalingState) !== -1;
+}
+
+function maybeAddCandidate(iceTransport, candidate) {
+ // Edge's internal representation adds some fields therefore
+ // not all fieldѕ are taken into account.
+ var alreadyAdded = iceTransport.getRemoteCandidates()
+ .find(function(remoteCandidate) {
+ return candidate.foundation === remoteCandidate.foundation &&
+ candidate.ip === remoteCandidate.ip &&
+ candidate.port === remoteCandidate.port &&
+ candidate.priority === remoteCandidate.priority &&
+ candidate.protocol === remoteCandidate.protocol &&
+ candidate.type === remoteCandidate.type;
+ });
+ if (!alreadyAdded) {
+ iceTransport.addRemoteCandidate(candidate);
+ }
+ return !alreadyAdded;
+}
+
+
+function makeError(name, description) {
+ var e = new Error(description);
+ e.name = name;
+ // legacy error codes from https://heycam.github.io/webidl/#idl-DOMException-error-names
+ e.code = {
+ NotSupportedError: 9,
+ InvalidStateError: 11,
+ InvalidAccessError: 15,
+ TypeError: undefined,
+ OperationError: undefined
+ }[name];
+ return e;
+}
+
+module.exports = function(window, edgeVersion) {
+ // https://w3c.github.io/mediacapture-main/#mediastream
+ // Helper function to add the track to the stream and
+ // dispatch the event ourselves.
+ function addTrackToStreamAndFireEvent(track, stream) {
+ stream.addTrack(track);
+ stream.dispatchEvent(new window.MediaStreamTrackEvent('addtrack',
+ {track: track}));
+ }
+
+ function removeTrackFromStreamAndFireEvent(track, stream) {
+ stream.removeTrack(track);
+ stream.dispatchEvent(new window.MediaStreamTrackEvent('removetrack',
+ {track: track}));
+ }
+
+ function fireAddTrack(pc, track, receiver, streams) {
+ var trackEvent = new Event('track');
+ trackEvent.track = track;
+ trackEvent.receiver = receiver;
+ trackEvent.transceiver = {receiver: receiver};
+ trackEvent.streams = streams;
+ window.setTimeout(function() {
+ pc._dispatchEvent('track', trackEvent);
+ });
+ }
+
+ var RTCPeerConnection = function(config) {
+ var pc = this;
+
+ var _eventTarget = document.createDocumentFragment();
+ ['addEventListener', 'removeEventListener', 'dispatchEvent']
+ .forEach(function(method) {
+ pc[method] = _eventTarget[method].bind(_eventTarget);
+ });
+
+ this.canTrickleIceCandidates = null;
+
+ this.needNegotiation = false;
+
+ this.localStreams = [];
+ this.remoteStreams = [];
+
+ this._localDescription = null;
+ this._remoteDescription = null;
+
+ this.signalingState = 'stable';
+ this.iceConnectionState = 'new';
+ this.connectionState = 'new';
+ this.iceGatheringState = 'new';
+
+ config = JSON.parse(JSON.stringify(config || {}));
+
+ this.usingBundle = config.bundlePolicy === 'max-bundle';
+ if (config.rtcpMuxPolicy === 'negotiate') {
+ throw(makeError('NotSupportedError',
+ 'rtcpMuxPolicy \'negotiate\' is not supported'));
+ } else if (!config.rtcpMuxPolicy) {
+ config.rtcpMuxPolicy = 'require';
+ }
+
+ switch (config.iceTransportPolicy) {
+ case 'all':
+ case 'relay':
+ break;
+ default:
+ config.iceTransportPolicy = 'all';
+ break;
+ }
+
+ switch (config.bundlePolicy) {
+ case 'balanced':
+ case 'max-compat':
+ case 'max-bundle':
+ break;
+ default:
+ config.bundlePolicy = 'balanced';
+ break;
+ }
+
+ config.iceServers = filterIceServers(config.iceServers || [], edgeVersion);
+
+ this._iceGatherers = [];
+ if (config.iceCandidatePoolSize) {
+ for (var i = config.iceCandidatePoolSize; i > 0; i--) {
+ this._iceGatherers.push(new window.RTCIceGatherer({
+ iceServers: config.iceServers,
+ gatherPolicy: config.iceTransportPolicy
+ }));
+ }
+ } else {
+ config.iceCandidatePoolSize = 0;
+ }
+
+ this._config = config;
+
+ // per-track iceGathers, iceTransports, dtlsTransports, rtpSenders, ...
+ // everything that is needed to describe a SDP m-line.
+ this.transceivers = [];
+
+ this._sdpSessionId = SDPUtils.generateSessionId();
+ this._sdpSessionVersion = 0;
+
+ this._dtlsRole = undefined; // role for a=setup to use in answers.
+
+ this._isClosed = false;
+ };
+
+ Object.defineProperty(RTCPeerConnection.prototype, 'localDescription', {
+ configurable: true,
+ get: function() {
+ return this._localDescription;
+ }
+ });
+ Object.defineProperty(RTCPeerConnection.prototype, 'remoteDescription', {
+ configurable: true,
+ get: function() {
+ return this._remoteDescription;
+ }
+ });
+
+ // set up event handlers on prototype
+ RTCPeerConnection.prototype.onicecandidate = null;
+ RTCPeerConnection.prototype.onaddstream = null;
+ RTCPeerConnection.prototype.ontrack = null;
+ RTCPeerConnection.prototype.onremovestream = null;
+ RTCPeerConnection.prototype.onsignalingstatechange = null;
+ RTCPeerConnection.prototype.oniceconnectionstatechange = null;
+ RTCPeerConnection.prototype.onconnectionstatechange = null;
+ RTCPeerConnection.prototype.onicegatheringstatechange = null;
+ RTCPeerConnection.prototype.onnegotiationneeded = null;
+ RTCPeerConnection.prototype.ondatachannel = null;
+
+ RTCPeerConnection.prototype._dispatchEvent = function(name, event) {
+ if (this._isClosed) {
+ return;
+ }
+ this.dispatchEvent(event);
+ if (typeof this['on' + name] === 'function') {
+ this['on' + name](event);
+ }
+ };
+
+ RTCPeerConnection.prototype._emitGatheringStateChange = function() {
+ var event = new Event('icegatheringstatechange');
+ this._dispatchEvent('icegatheringstatechange', event);
+ };
+
+ RTCPeerConnection.prototype.getConfiguration = function() {
+ return this._config;
+ };
+
+ RTCPeerConnection.prototype.getLocalStreams = function() {
+ return this.localStreams;
+ };
+
+ RTCPeerConnection.prototype.getRemoteStreams = function() {
+ return this.remoteStreams;
+ };
+
+ // internal helper to create a transceiver object.
+ // (which is not yet the same as the WebRTC 1.0 transceiver)
+ RTCPeerConnection.prototype._createTransceiver = function(kind, doNotAdd) {
+ var hasBundleTransport = this.transceivers.length > 0;
+ var transceiver = {
+ track: null,
+ iceGatherer: null,
+ iceTransport: null,
+ dtlsTransport: null,
+ localCapabilities: null,
+ remoteCapabilities: null,
+ rtpSender: null,
+ rtpReceiver: null,
+ kind: kind,
+ mid: null,
+ sendEncodingParameters: null,
+ recvEncodingParameters: null,
+ stream: null,
+ associatedRemoteMediaStreams: [],
+ wantReceive: true
+ };
+ if (this.usingBundle && hasBundleTransport) {
+ transceiver.iceTransport = this.transceivers[0].iceTransport;
+ transceiver.dtlsTransport = this.transceivers[0].dtlsTransport;
+ } else {
+ var transports = this._createIceAndDtlsTransports();
+ transceiver.iceTransport = transports.iceTransport;
+ transceiver.dtlsTransport = transports.dtlsTransport;
+ }
+ if (!doNotAdd) {
+ this.transceivers.push(transceiver);
+ }
+ return transceiver;
+ };
+
+ RTCPeerConnection.prototype.addTrack = function(track, stream) {
+ if (this._isClosed) {
+ throw makeError('InvalidStateError',
+ 'Attempted to call addTrack on a closed peerconnection.');
+ }
+
+ var alreadyExists = this.transceivers.find(function(s) {
+ return s.track === track;
+ });
+
+ if (alreadyExists) {
+ throw makeError('InvalidAccessError', 'Track already exists.');
+ }
+
+ var transceiver;
+ for (var i = 0; i < this.transceivers.length; i++) {
+ if (!this.transceivers[i].track &&
+ this.transceivers[i].kind === track.kind) {
+ transceiver = this.transceivers[i];
+ }
+ }
+ if (!transceiver) {
+ transceiver = this._createTransceiver(track.kind);
+ }
+
+ this._maybeFireNegotiationNeeded();
+
+ if (this.localStreams.indexOf(stream) === -1) {
+ this.localStreams.push(stream);
+ }
+
+ transceiver.track = track;
+ transceiver.stream = stream;
+ transceiver.rtpSender = new window.RTCRtpSender(track,
+ transceiver.dtlsTransport);
+ return transceiver.rtpSender;
+ };
+
+ RTCPeerConnection.prototype.addStream = function(stream) {
+ var pc = this;
+ if (edgeVersion >= 15025) {
+ stream.getTracks().forEach(function(track) {
+ pc.addTrack(track, stream);
+ });
+ } else {
+ // Clone is necessary for local demos mostly, attaching directly
+ // to two different senders does not work (build 10547).
+ // Fixed in 15025 (or earlier)
+ var clonedStream = stream.clone();
+ stream.getTracks().forEach(function(track, idx) {
+ var clonedTrack = clonedStream.getTracks()[idx];
+ track.addEventListener('enabled', function(event) {
+ clonedTrack.enabled = event.enabled;
+ });
+ });
+ clonedStream.getTracks().forEach(function(track) {
+ pc.addTrack(track, clonedStream);
+ });
+ }
+ };
+
+ RTCPeerConnection.prototype.removeTrack = function(sender) {
+ if (this._isClosed) {
+ throw makeError('InvalidStateError',
+ 'Attempted to call removeTrack on a closed peerconnection.');
+ }
+
+ if (!(sender instanceof window.RTCRtpSender)) {
+ throw new TypeError('Argument 1 of RTCPeerConnection.removeTrack ' +
+ 'does not implement interface RTCRtpSender.');
+ }
+
+ var transceiver = this.transceivers.find(function(t) {
+ return t.rtpSender === sender;
+ });
+
+ if (!transceiver) {
+ throw makeError('InvalidAccessError',
+ 'Sender was not created by this connection.');
+ }
+ var stream = transceiver.stream;
+
+ transceiver.rtpSender.stop();
+ transceiver.rtpSender = null;
+ transceiver.track = null;
+ transceiver.stream = null;
+
+ // remove the stream from the set of local streams
+ var localStreams = this.transceivers.map(function(t) {
+ return t.stream;
+ });
+ if (localStreams.indexOf(stream) === -1 &&
+ this.localStreams.indexOf(stream) > -1) {
+ this.localStreams.splice(this.localStreams.indexOf(stream), 1);
+ }
+
+ this._maybeFireNegotiationNeeded();
+ };
+
+ RTCPeerConnection.prototype.removeStream = function(stream) {
+ var pc = this;
+ stream.getTracks().forEach(function(track) {
+ var sender = pc.getSenders().find(function(s) {
+ return s.track === track;
+ });
+ if (sender) {
+ pc.removeTrack(sender);
+ }
+ });
+ };
+
+ RTCPeerConnection.prototype.getSenders = function() {
+ return this.transceivers.filter(function(transceiver) {
+ return !!transceiver.rtpSender;
+ })
+ .map(function(transceiver) {
+ return transceiver.rtpSender;
+ });
+ };
+
+ RTCPeerConnection.prototype.getReceivers = function() {
+ return this.transceivers.filter(function(transceiver) {
+ return !!transceiver.rtpReceiver;
+ })
+ .map(function(transceiver) {
+ return transceiver.rtpReceiver;
+ });
+ };
+
+
+ RTCPeerConnection.prototype._createIceGatherer = function(sdpMLineIndex,
+ usingBundle) {
+ var pc = this;
+ if (usingBundle && sdpMLineIndex > 0) {
+ return this.transceivers[0].iceGatherer;
+ } else if (this._iceGatherers.length) {
+ return this._iceGatherers.shift();
+ }
+ var iceGatherer = new window.RTCIceGatherer({
+ iceServers: this._config.iceServers,
+ gatherPolicy: this._config.iceTransportPolicy
+ });
+ Object.defineProperty(iceGatherer, 'state',
+ {value: 'new', writable: true}
+ );
+
+ this.transceivers[sdpMLineIndex].bufferedCandidateEvents = [];
+ this.transceivers[sdpMLineIndex].bufferCandidates = function(event) {
+ var end = !event.candidate || Object.keys(event.candidate).length === 0;
+ // polyfill since RTCIceGatherer.state is not implemented in
+ // Edge 10547 yet.
+ iceGatherer.state = end ? 'completed' : 'gathering';
+ if (pc.transceivers[sdpMLineIndex].bufferedCandidateEvents !== null) {
+ pc.transceivers[sdpMLineIndex].bufferedCandidateEvents.push(event);
+ }
+ };
+ iceGatherer.addEventListener('localcandidate',
+ this.transceivers[sdpMLineIndex].bufferCandidates);
+ return iceGatherer;
+ };
+
+ // start gathering from an RTCIceGatherer.
+ RTCPeerConnection.prototype._gather = function(mid, sdpMLineIndex) {
+ var pc = this;
+ var iceGatherer = this.transceivers[sdpMLineIndex].iceGatherer;
+ if (iceGatherer.onlocalcandidate) {
+ return;
+ }
+ var bufferedCandidateEvents =
+ this.transceivers[sdpMLineIndex].bufferedCandidateEvents;
+ this.transceivers[sdpMLineIndex].bufferedCandidateEvents = null;
+ iceGatherer.removeEventListener('localcandidate',
+ this.transceivers[sdpMLineIndex].bufferCandidates);
+ iceGatherer.onlocalcandidate = function(evt) {
+ if (pc.usingBundle && sdpMLineIndex > 0) {
+ // if we know that we use bundle we can drop candidates with
+ // ѕdpMLineIndex > 0. If we don't do this then our state gets
+ // confused since we dispose the extra ice gatherer.
+ return;
+ }
+ var event = new Event('icecandidate');
+ event.candidate = {sdpMid: mid, sdpMLineIndex: sdpMLineIndex};
+
+ var cand = evt.candidate;
+ // Edge emits an empty object for RTCIceCandidateComplete‥
+ var end = !cand || Object.keys(cand).length === 0;
+ if (end) {
+ // polyfill since RTCIceGatherer.state is not implemented in
+ // Edge 10547 yet.
+ if (iceGatherer.state === 'new' || iceGatherer.state === 'gathering') {
+ iceGatherer.state = 'completed';
+ }
+ } else {
+ if (iceGatherer.state === 'new') {
+ iceGatherer.state = 'gathering';
+ }
+ // RTCIceCandidate doesn't have a component, needs to be added
+ cand.component = 1;
+ // also the usernameFragment. TODO: update SDP to take both variants.
+ cand.ufrag = iceGatherer.getLocalParameters().usernameFragment;
+
+ var serializedCandidate = SDPUtils.writeCandidate(cand);
+ event.candidate = Object.assign(event.candidate,
+ SDPUtils.parseCandidate(serializedCandidate));
+
+ event.candidate.candidate = serializedCandidate;
+ event.candidate.toJSON = function() {
+ return {
+ candidate: event.candidate.candidate,
+ sdpMid: event.candidate.sdpMid,
+ sdpMLineIndex: event.candidate.sdpMLineIndex,
+ usernameFragment: event.candidate.usernameFragment
+ };
+ };
+ }
+
+ // update local description.
+ var sections = SDPUtils.getMediaSections(pc._localDescription.sdp);
+ if (!end) {
+ sections[event.candidate.sdpMLineIndex] +=
+ 'a=' + event.candidate.candidate + '\r\n';
+ } else {
+ sections[event.candidate.sdpMLineIndex] +=
+ 'a=end-of-candidates\r\n';
+ }
+ pc._localDescription.sdp =
+ SDPUtils.getDescription(pc._localDescription.sdp) +
+ sections.join('');
+ var complete = pc.transceivers.every(function(transceiver) {
+ return transceiver.iceGatherer &&
+ transceiver.iceGatherer.state === 'completed';
+ });
+
+ if (pc.iceGatheringState !== 'gathering') {
+ pc.iceGatheringState = 'gathering';
+ pc._emitGatheringStateChange();
+ }
+
+ // Emit candidate. Also emit null candidate when all gatherers are
+ // complete.
+ if (!end) {
+ pc._dispatchEvent('icecandidate', event);
+ }
+ if (complete) {
+ pc._dispatchEvent('icecandidate', new Event('icecandidate'));
+ pc.iceGatheringState = 'complete';
+ pc._emitGatheringStateChange();
+ }
+ };
+
+ // emit already gathered candidates.
+ window.setTimeout(function() {
+ bufferedCandidateEvents.forEach(function(e) {
+ iceGatherer.onlocalcandidate(e);
+ });
+ }, 0);
+ };
+
+ // Create ICE transport and DTLS transport.
+ RTCPeerConnection.prototype._createIceAndDtlsTransports = function() {
+ var pc = this;
+ var iceTransport = new window.RTCIceTransport(null);
+ iceTransport.onicestatechange = function() {
+ pc._updateIceConnectionState();
+ pc._updateConnectionState();
+ };
+
+ var dtlsTransport = new window.RTCDtlsTransport(iceTransport);
+ dtlsTransport.ondtlsstatechange = function() {
+ pc._updateConnectionState();
+ };
+ dtlsTransport.onerror = function() {
+ // onerror does not set state to failed by itself.
+ Object.defineProperty(dtlsTransport, 'state',
+ {value: 'failed', writable: true});
+ pc._updateConnectionState();
+ };
+
+ return {
+ iceTransport: iceTransport,
+ dtlsTransport: dtlsTransport
+ };
+ };
+
+ // Destroy ICE gatherer, ICE transport and DTLS transport.
+ // Without triggering the callbacks.
+ RTCPeerConnection.prototype._disposeIceAndDtlsTransports = function(
+ sdpMLineIndex) {
+ var iceGatherer = this.transceivers[sdpMLineIndex].iceGatherer;
+ if (iceGatherer) {
+ delete iceGatherer.onlocalcandidate;
+ delete this.transceivers[sdpMLineIndex].iceGatherer;
+ }
+ var iceTransport = this.transceivers[sdpMLineIndex].iceTransport;
+ if (iceTransport) {
+ delete iceTransport.onicestatechange;
+ delete this.transceivers[sdpMLineIndex].iceTransport;
+ }
+ var dtlsTransport = this.transceivers[sdpMLineIndex].dtlsTransport;
+ if (dtlsTransport) {
+ delete dtlsTransport.ondtlsstatechange;
+ delete dtlsTransport.onerror;
+ delete this.transceivers[sdpMLineIndex].dtlsTransport;
+ }
+ };
+
+ // Start the RTP Sender and Receiver for a transceiver.
+ RTCPeerConnection.prototype._transceive = function(transceiver,
+ send, recv) {
+ var params = getCommonCapabilities(transceiver.localCapabilities,
+ transceiver.remoteCapabilities);
+ if (send && transceiver.rtpSender) {
+ params.encodings = transceiver.sendEncodingParameters;
+ params.rtcp = {
+ cname: SDPUtils.localCName,
+ compound: transceiver.rtcpParameters.compound
+ };
+ if (transceiver.recvEncodingParameters.length) {
+ params.rtcp.ssrc = transceiver.recvEncodingParameters[0].ssrc;
+ }
+ transceiver.rtpSender.send(params);
+ }
+ if (recv && transceiver.rtpReceiver && params.codecs.length > 0) {
+ // remove RTX field in Edge 14942
+ if (transceiver.kind === 'video'
+ && transceiver.recvEncodingParameters
+ && edgeVersion < 15019) {
+ transceiver.recvEncodingParameters.forEach(function(p) {
+ delete p.rtx;
+ });
+ }
+ if (transceiver.recvEncodingParameters.length) {
+ params.encodings = transceiver.recvEncodingParameters;
+ } else {
+ params.encodings = [{}];
+ }
+ params.rtcp = {
+ compound: transceiver.rtcpParameters.compound
+ };
+ if (transceiver.rtcpParameters.cname) {
+ params.rtcp.cname = transceiver.rtcpParameters.cname;
+ }
+ if (transceiver.sendEncodingParameters.length) {
+ params.rtcp.ssrc = transceiver.sendEncodingParameters[0].ssrc;
+ }
+ transceiver.rtpReceiver.receive(params);
+ }
+ };
+
+ RTCPeerConnection.prototype.setLocalDescription = function(description) {
+ var pc = this;
+
+ // Note: pranswer is not supported.
+ if (['offer', 'answer'].indexOf(description.type) === -1) {
+ return Promise.reject(makeError('TypeError',
+ 'Unsupported type "' + description.type + '"'));
+ }
+
+ if (!isActionAllowedInSignalingState('setLocalDescription',
+ description.type, pc.signalingState) || pc._isClosed) {
+ return Promise.reject(makeError('InvalidStateError',
+ 'Can not set local ' + description.type +
+ ' in state ' + pc.signalingState));
+ }
+
+ var sections;
+ var sessionpart;
+ if (description.type === 'offer') {
+ // VERY limited support for SDP munging. Limited to:
+ // * changing the order of codecs
+ sections = SDPUtils.splitSections(description.sdp);
+ sessionpart = sections.shift();
+ sections.forEach(function(mediaSection, sdpMLineIndex) {
+ var caps = SDPUtils.parseRtpParameters(mediaSection);
+ pc.transceivers[sdpMLineIndex].localCapabilities = caps;
+ });
+
+ pc.transceivers.forEach(function(transceiver, sdpMLineIndex) {
+ pc._gather(transceiver.mid, sdpMLineIndex);
+ });
+ } else if (description.type === 'answer') {
+ sections = SDPUtils.splitSections(pc._remoteDescription.sdp);
+ sessionpart = sections.shift();
+ var isIceLite = SDPUtils.matchPrefix(sessionpart,
+ 'a=ice-lite').length > 0;
+ sections.forEach(function(mediaSection, sdpMLineIndex) {
+ var transceiver = pc.transceivers[sdpMLineIndex];
+ var iceGatherer = transceiver.iceGatherer;
+ var iceTransport = transceiver.iceTransport;
+ var dtlsTransport = transceiver.dtlsTransport;
+ var localCapabilities = transceiver.localCapabilities;
+ var remoteCapabilities = transceiver.remoteCapabilities;
+
+ // treat bundle-only as not-rejected.
+ var rejected = SDPUtils.isRejected(mediaSection) &&
+ SDPUtils.matchPrefix(mediaSection, 'a=bundle-only').length === 0;
+
+ if (!rejected && !transceiver.rejected) {
+ var remoteIceParameters = SDPUtils.getIceParameters(
+ mediaSection, sessionpart);
+ var remoteDtlsParameters = SDPUtils.getDtlsParameters(
+ mediaSection, sessionpart);
+ if (isIceLite) {
+ remoteDtlsParameters.role = 'server';
+ }
+
+ if (!pc.usingBundle || sdpMLineIndex === 0) {
+ pc._gather(transceiver.mid, sdpMLineIndex);
+ if (iceTransport.state === 'new') {
+ iceTransport.start(iceGatherer, remoteIceParameters,
+ isIceLite ? 'controlling' : 'controlled');
+ }
+ if (dtlsTransport.state === 'new') {
+ dtlsTransport.start(remoteDtlsParameters);
+ }
+ }
- var options = {
- shimChrome: true,
- shimFirefox: true,
- shimEdge: true,
- shimSafari: true,
- };
+ // Calculate intersection of capabilities.
+ var params = getCommonCapabilities(localCapabilities,
+ remoteCapabilities);
- for (var key in opts) {
- if (hasOwnProperty.call(opts, key)) {
- options[key] = opts[key];
+ // Start the RTCRtpSender. The RTCRtpReceiver for this
+ // transceiver has already been started in setRemoteDescription.
+ pc._transceive(transceiver,
+ params.codecs.length > 0,
+ false);
+ }
+ });
}
- }
-
- // Utils.
- var logging = utils.log;
- var browserDetails = utils.detectBrowser(window);
-
- // Uncomment the line below if you want logging to occur, including logging
- // for the switch statement below. Can also be turned on in the browser via
- // adapter.disableLog(false), but then logging from the switch statement below
- // will not appear.
- // require('./utils').disableLog(false);
- // Browser shims.
- var chromeShim = require('./chrome/chrome_shim') || null;
- var edgeShim = require('./edge/edge_shim') || null;
- var firefoxShim = require('./firefox/firefox_shim') || null;
- var safariShim = require('./safari/safari_shim') || null;
- var commonShim = require('./common_shim') || null;
+ pc._localDescription = {
+ type: description.type,
+ sdp: description.sdp
+ };
+ if (description.type === 'offer') {
+ pc._updateSignalingState('have-local-offer');
+ } else {
+ pc._updateSignalingState('stable');
+ }
- // Export to the adapter global object visible in the browser.
- var adapter = {
- browserDetails: browserDetails,
- commonShim: commonShim,
- extractVersion: utils.extractVersion,
- disableLog: utils.disableLog,
- disableWarnings: utils.disableWarnings
+ return Promise.resolve();
};
- // Shim browser if found.
- switch (browserDetails.browser) {
- case 'chrome':
- if (!chromeShim || !chromeShim.shimPeerConnection ||
- !options.shimChrome) {
- logging('Chrome shim is not included in this adapter release.');
- return adapter;
- }
- logging('adapter.js shimming chrome.');
- // Export to the adapter global object visible in the browser.
- adapter.browserShim = chromeShim;
- commonShim.shimCreateObjectURL(window);
+ RTCPeerConnection.prototype.setRemoteDescription = function(description) {
+ var pc = this;
- chromeShim.shimGetUserMedia(window);
- chromeShim.shimMediaStream(window);
- chromeShim.shimSourceObject(window);
- chromeShim.shimPeerConnection(window);
- chromeShim.shimOnTrack(window);
- chromeShim.shimAddTrackRemoveTrack(window);
- chromeShim.shimGetSendersWithDtmf(window);
+ // Note: pranswer is not supported.
+ if (['offer', 'answer'].indexOf(description.type) === -1) {
+ return Promise.reject(makeError('TypeError',
+ 'Unsupported type "' + description.type + '"'));
+ }
- commonShim.shimRTCIceCandidate(window);
- commonShim.shimMaxMessageSize(window);
- commonShim.shimSendThrowTypeError(window);
- break;
- case 'firefox':
- if (!firefoxShim || !firefoxShim.shimPeerConnection ||
- !options.shimFirefox) {
- logging('Firefox shim is not included in this adapter release.');
- return adapter;
- }
- logging('adapter.js shimming firefox.');
- // Export to the adapter global object visible in the browser.
- adapter.browserShim = firefoxShim;
- commonShim.shimCreateObjectURL(window);
+ if (!isActionAllowedInSignalingState('setRemoteDescription',
+ description.type, pc.signalingState) || pc._isClosed) {
+ return Promise.reject(makeError('InvalidStateError',
+ 'Can not set remote ' + description.type +
+ ' in state ' + pc.signalingState));
+ }
- firefoxShim.shimGetUserMedia(window);
- firefoxShim.shimSourceObject(window);
- firefoxShim.shimPeerConnection(window);
- firefoxShim.shimOnTrack(window);
- firefoxShim.shimRemoveStream(window);
+ var streams = {};
+ pc.remoteStreams.forEach(function(stream) {
+ streams[stream.id] = stream;
+ });
+ var receiverList = [];
+ var sections = SDPUtils.splitSections(description.sdp);
+ var sessionpart = sections.shift();
+ var isIceLite = SDPUtils.matchPrefix(sessionpart,
+ 'a=ice-lite').length > 0;
+ var usingBundle = SDPUtils.matchPrefix(sessionpart,
+ 'a=group:BUNDLE ').length > 0;
+ pc.usingBundle = usingBundle;
+ var iceOptions = SDPUtils.matchPrefix(sessionpart,
+ 'a=ice-options:')[0];
+ if (iceOptions) {
+ pc.canTrickleIceCandidates = iceOptions.substr(14).split(' ')
+ .indexOf('trickle') >= 0;
+ } else {
+ pc.canTrickleIceCandidates = false;
+ }
- commonShim.shimRTCIceCandidate(window);
- commonShim.shimMaxMessageSize(window);
- commonShim.shimSendThrowTypeError(window);
- break;
- case 'edge':
- if (!edgeShim || !edgeShim.shimPeerConnection || !options.shimEdge) {
- logging('MS edge shim is not included in this adapter release.');
- return adapter;
- }
- logging('adapter.js shimming edge.');
- // Export to the adapter global object visible in the browser.
- adapter.browserShim = edgeShim;
- commonShim.shimCreateObjectURL(window);
+ sections.forEach(function(mediaSection, sdpMLineIndex) {
+ var lines = SDPUtils.splitLines(mediaSection);
+ var kind = SDPUtils.getKind(mediaSection);
+ // treat bundle-only as not-rejected.
+ var rejected = SDPUtils.isRejected(mediaSection) &&
+ SDPUtils.matchPrefix(mediaSection, 'a=bundle-only').length === 0;
+ var protocol = lines[0].substr(2).split(' ')[2];
- edgeShim.shimGetUserMedia(window);
- edgeShim.shimPeerConnection(window);
- edgeShim.shimReplaceTrack(window);
+ var direction = SDPUtils.getDirection(mediaSection, sessionpart);
+ var remoteMsid = SDPUtils.parseMsid(mediaSection);
- // the edge shim implements the full RTCIceCandidate object.
+ var mid = SDPUtils.getMid(mediaSection) || SDPUtils.generateIdentifier();
- commonShim.shimMaxMessageSize(window);
- commonShim.shimSendThrowTypeError(window);
- break;
- case 'safari':
- if (!safariShim || !options.shimSafari) {
- logging('Safari shim is not included in this adapter release.');
- return adapter;
+ // Reject datachannels which are not implemented yet.
+ if (rejected || (kind === 'application' && (protocol === 'DTLS/SCTP' ||
+ protocol === 'UDP/DTLS/SCTP'))) {
+ // TODO: this is dangerous in the case where a non-rejected m-line
+ // becomes rejected.
+ pc.transceivers[sdpMLineIndex] = {
+ mid: mid,
+ kind: kind,
+ protocol: protocol,
+ rejected: true
+ };
+ return;
}
- logging('adapter.js shimming safari.');
- // Export to the adapter global object visible in the browser.
- adapter.browserShim = safariShim;
- commonShim.shimCreateObjectURL(window);
-
- safariShim.shimRTCIceServerUrls(window);
- safariShim.shimCallbacksAPI(window);
- safariShim.shimLocalStreamsAPI(window);
- safariShim.shimRemoteStreamsAPI(window);
- safariShim.shimTrackEventTransceiver(window);
- safariShim.shimGetUserMedia(window);
- safariShim.shimCreateOfferLegacy(window);
- commonShim.shimRTCIceCandidate(window);
- commonShim.shimMaxMessageSize(window);
- commonShim.shimSendThrowTypeError(window);
- break;
- default:
- logging('Unsupported browser!');
- break;
- }
+ if (!rejected && pc.transceivers[sdpMLineIndex] &&
+ pc.transceivers[sdpMLineIndex].rejected) {
+ // recycle a rejected transceiver.
+ pc.transceivers[sdpMLineIndex] = pc._createTransceiver(kind, true);
+ }
- return adapter;
-};
+ var transceiver;
+ var iceGatherer;
+ var iceTransport;
+ var dtlsTransport;
+ var rtpReceiver;
+ var sendEncodingParameters;
+ var recvEncodingParameters;
+ var localCapabilities;
-},{"./chrome/chrome_shim":5,"./common_shim":7,"./edge/edge_shim":8,"./firefox/firefox_shim":10,"./safari/safari_shim":12,"./utils":13}],5:[function(require,module,exports){
+ var track;
+ // FIXME: ensure the mediaSection has rtcp-mux set.
+ var remoteCapabilities = SDPUtils.parseRtpParameters(mediaSection);
+ var remoteIceParameters;
+ var remoteDtlsParameters;
+ if (!rejected) {
+ remoteIceParameters = SDPUtils.getIceParameters(mediaSection,
+ sessionpart);
+ remoteDtlsParameters = SDPUtils.getDtlsParameters(mediaSection,
+ sessionpart);
+ remoteDtlsParameters.role = 'client';
+ }
+ recvEncodingParameters =
+ SDPUtils.parseRtpEncodingParameters(mediaSection);
-/*
- * 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';
-var utils = require('../utils.js');
-var logging = utils.log;
+ var rtcpParameters = SDPUtils.parseRtcpParameters(mediaSection);
-module.exports = {
- shimGetUserMedia: require('./getusermedia'),
- shimMediaStream: function(window) {
- window.MediaStream = window.MediaStream || window.webkitMediaStream;
- },
-
- shimOnTrack: function(window) {
- if (typeof window === 'object' && window.RTCPeerConnection && !('ontrack' in
- window.RTCPeerConnection.prototype)) {
- Object.defineProperty(window.RTCPeerConnection.prototype, 'ontrack', {
- get: function() {
- return this._ontrack;
- },
- set: function(f) {
- if (this._ontrack) {
- this.removeEventListener('track', this._ontrack);
- }
- this.addEventListener('track', this._ontrack = f);
- }
- });
- var origSetRemoteDescription =
- window.RTCPeerConnection.prototype.setRemoteDescription;
- window.RTCPeerConnection.prototype.setRemoteDescription = function() {
- var pc = this;
- if (!pc._ontrackpoly) {
- pc._ontrackpoly = function(e) {
- // onaddstream does not fire when a track is added to an existing
- // stream. But stream.onaddtrack is implemented so we use that.
- e.stream.addEventListener('addtrack', function(te) {
- var receiver;
- if (window.RTCPeerConnection.prototype.getReceivers) {
- receiver = pc.getReceivers().find(function(r) {
- return r.track && r.track.id === te.track.id;
- });
- } else {
- receiver = {track: te.track};
- }
+ var isComplete = SDPUtils.matchPrefix(mediaSection,
+ 'a=end-of-candidates', sessionpart).length > 0;
+ var cands = SDPUtils.matchPrefix(mediaSection, 'a=candidate:')
+ .map(function(cand) {
+ return SDPUtils.parseCandidate(cand);
+ })
+ .filter(function(cand) {
+ return cand.component === 1;
+ });
- var event = new Event('track');
- event.track = te.track;
- event.receiver = receiver;
- event.transceiver = {receiver: receiver};
- event.streams = [e.stream];
- pc.dispatchEvent(event);
- });
- e.stream.getTracks().forEach(function(track) {
- var receiver;
- if (window.RTCPeerConnection.prototype.getReceivers) {
- receiver = pc.getReceivers().find(function(r) {
- return r.track && r.track.id === track.id;
- });
- } else {
- receiver = {track: track};
- }
- var event = new Event('track');
- event.track = track;
- event.receiver = receiver;
- event.transceiver = {receiver: receiver};
- event.streams = [e.stream];
- pc.dispatchEvent(event);
- });
- };
- pc.addEventListener('addstream', pc._ontrackpoly);
+ // Check if we can use BUNDLE and dispose transports.
+ if ((description.type === 'offer' || description.type === 'answer') &&
+ !rejected && usingBundle && sdpMLineIndex > 0 &&
+ pc.transceivers[sdpMLineIndex]) {
+ pc._disposeIceAndDtlsTransports(sdpMLineIndex);
+ pc.transceivers[sdpMLineIndex].iceGatherer =
+ pc.transceivers[0].iceGatherer;
+ pc.transceivers[sdpMLineIndex].iceTransport =
+ pc.transceivers[0].iceTransport;
+ pc.transceivers[sdpMLineIndex].dtlsTransport =
+ pc.transceivers[0].dtlsTransport;
+ if (pc.transceivers[sdpMLineIndex].rtpSender) {
+ pc.transceivers[sdpMLineIndex].rtpSender.setTransport(
+ pc.transceivers[0].dtlsTransport);
}
- return origSetRemoteDescription.apply(pc, arguments);
- };
- } else if (!('RTCRtpTransceiver' in window)) {
- utils.wrapPeerConnectionEvent(window, 'track', function(e) {
- if (!e.transceiver) {
- e.transceiver = {receiver: e.receiver};
+ if (pc.transceivers[sdpMLineIndex].rtpReceiver) {
+ pc.transceivers[sdpMLineIndex].rtpReceiver.setTransport(
+ pc.transceivers[0].dtlsTransport);
}
- return e;
- });
- }
- },
-
- shimGetSendersWithDtmf: function(window) {
- // Overrides addTrack/removeTrack, depends on shimAddTrackRemoveTrack.
- if (typeof window === 'object' && window.RTCPeerConnection &&
- !('getSenders' in window.RTCPeerConnection.prototype) &&
- 'createDTMFSender' in window.RTCPeerConnection.prototype) {
- var shimSenderWithDtmf = function(pc, track) {
- return {
- track: track,
- get dtmf() {
- if (this._dtmf === undefined) {
- if (track.kind === 'audio') {
- this._dtmf = pc.createDTMFSender(track);
- } else {
- this._dtmf = null;
- }
- }
- return this._dtmf;
- },
- _pc: pc
- };
- };
-
- // augment addTrack when getSenders is not available.
- if (!window.RTCPeerConnection.prototype.getSenders) {
- window.RTCPeerConnection.prototype.getSenders = function() {
- this._senders = this._senders || [];
- return this._senders.slice(); // return a copy of the internal state.
- };
- var origAddTrack = window.RTCPeerConnection.prototype.addTrack;
- window.RTCPeerConnection.prototype.addTrack = function(track, stream) {
- var pc = this;
- var sender = origAddTrack.apply(pc, arguments);
- if (!sender) {
- sender = shimSenderWithDtmf(pc, track);
- pc._senders.push(sender);
- }
- return sender;
- };
-
- var origRemoveTrack = window.RTCPeerConnection.prototype.removeTrack;
- window.RTCPeerConnection.prototype.removeTrack = function(sender) {
- var pc = this;
- origRemoveTrack.apply(pc, arguments);
- var idx = pc._senders.indexOf(sender);
- if (idx !== -1) {
- pc._senders.splice(idx, 1);
- }
- };
}
- var origAddStream = window.RTCPeerConnection.prototype.addStream;
- window.RTCPeerConnection.prototype.addStream = function(stream) {
- var pc = this;
- pc._senders = pc._senders || [];
- origAddStream.apply(pc, [stream]);
- stream.getTracks().forEach(function(track) {
- pc._senders.push(shimSenderWithDtmf(pc, track));
- });
- };
+ if (description.type === 'offer' && !rejected) {
+ transceiver = pc.transceivers[sdpMLineIndex] ||
+ pc._createTransceiver(kind);
+ transceiver.mid = mid;
- var origRemoveStream = window.RTCPeerConnection.prototype.removeStream;
- window.RTCPeerConnection.prototype.removeStream = function(stream) {
- var pc = this;
- pc._senders = pc._senders || [];
- origRemoveStream.apply(pc, [stream]);
+ if (!transceiver.iceGatherer) {
+ transceiver.iceGatherer = pc._createIceGatherer(sdpMLineIndex,
+ usingBundle);
+ }
- stream.getTracks().forEach(function(track) {
- var sender = pc._senders.find(function(s) {
- return s.track === track;
- });
- if (sender) {
- pc._senders.splice(pc._senders.indexOf(sender), 1); // remove sender
+ if (cands.length && transceiver.iceTransport.state === 'new') {
+ if (isComplete && (!usingBundle || sdpMLineIndex === 0)) {
+ transceiver.iceTransport.setRemoteCandidates(cands);
+ } else {
+ cands.forEach(function(candidate) {
+ maybeAddCandidate(transceiver.iceTransport, candidate);
+ });
}
- });
- };
- } else if (typeof window === 'object' && window.RTCPeerConnection &&
- 'getSenders' in window.RTCPeerConnection.prototype &&
- 'createDTMFSender' in window.RTCPeerConnection.prototype &&
- window.RTCRtpSender &&
- !('dtmf' in window.RTCRtpSender.prototype)) {
- var origGetSenders = window.RTCPeerConnection.prototype.getSenders;
- window.RTCPeerConnection.prototype.getSenders = function() {
- var pc = this;
- var senders = origGetSenders.apply(pc, []);
- senders.forEach(function(sender) {
- sender._pc = pc;
- });
- return senders;
- };
+ }
- Object.defineProperty(window.RTCRtpSender.prototype, 'dtmf', {
- get: function() {
- if (this._dtmf === undefined) {
- if (this.track.kind === 'audio') {
- this._dtmf = this._pc.createDTMFSender(this.track);
- } else {
- this._dtmf = null;
- }
- }
- return this._dtmf;
+ localCapabilities = window.RTCRtpReceiver.getCapabilities(kind);
+
+ // filter RTX until additional stuff needed for RTX is implemented
+ // in adapter.js
+ if (edgeVersion < 15019) {
+ localCapabilities.codecs = localCapabilities.codecs.filter(
+ function(codec) {
+ return codec.name !== 'rtx';
+ });
}
- });
- }
- },
-
- shimSourceObject: function(window) {
- var URL = window && window.URL;
-
- if (typeof window === 'object') {
- if (window.HTMLMediaElement &&
- !('srcObject' in window.HTMLMediaElement.prototype)) {
- // Shim the srcObject property, once, when HTMLMediaElement is found.
- Object.defineProperty(window.HTMLMediaElement.prototype, 'srcObject', {
- get: function() {
- return this._srcObject;
- },
- set: function(stream) {
- var self = this;
- // Use _srcObject as a private property for this shim
- this._srcObject = stream;
- if (this.src) {
- URL.revokeObjectURL(this.src);
- }
- if (!stream) {
- this.src = '';
- return undefined;
- }
- this.src = URL.createObjectURL(stream);
- // We need to recreate the blob url when a track is added or
- // removed. Doing it manually since we want to avoid a recursion.
- stream.addEventListener('addtrack', function() {
- if (self.src) {
- URL.revokeObjectURL(self.src);
+ sendEncodingParameters = transceiver.sendEncodingParameters || [{
+ ssrc: (2 * sdpMLineIndex + 2) * 1001
+ }];
+
+ // TODO: rewrite to use http://w3c.github.io/webrtc-pc/#set-associated-remote-streams
+ var isNewTrack = false;
+ if (direction === 'sendrecv' || direction === 'sendonly') {
+ isNewTrack = !transceiver.rtpReceiver;
+ rtpReceiver = transceiver.rtpReceiver ||
+ new window.RTCRtpReceiver(transceiver.dtlsTransport, kind);
+
+ if (isNewTrack) {
+ var stream;
+ track = rtpReceiver.track;
+ // FIXME: does not work with Plan B.
+ if (remoteMsid && remoteMsid.stream === '-') {
+ // no-op. a stream id of '-' means: no associated stream.
+ } else if (remoteMsid) {
+ if (!streams[remoteMsid.stream]) {
+ streams[remoteMsid.stream] = new window.MediaStream();
+ Object.defineProperty(streams[remoteMsid.stream], 'id', {
+ get: function() {
+ return remoteMsid.stream;
+ }
+ });
}
- self.src = URL.createObjectURL(stream);
- });
- stream.addEventListener('removetrack', function() {
- if (self.src) {
- URL.revokeObjectURL(self.src);
+ Object.defineProperty(track, 'id', {
+ get: function() {
+ return remoteMsid.track;
+ }
+ });
+ stream = streams[remoteMsid.stream];
+ } else {
+ if (!streams.default) {
+ streams.default = new window.MediaStream();
}
- self.src = URL.createObjectURL(stream);
- });
+ stream = streams.default;
+ }
+ if (stream) {
+ addTrackToStreamAndFireEvent(track, stream);
+ transceiver.associatedRemoteMediaStreams.push(stream);
+ }
+ receiverList.push([track, rtpReceiver, stream]);
}
- });
- }
- }
- },
-
- shimAddTrackRemoveTrackWithNative: function(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() {
- var pc = this;
- this._shimmedLocalStreams = this._shimmedLocalStreams || {};
- return Object.keys(this._shimmedLocalStreams).map(function(streamId) {
- return pc._shimmedLocalStreams[streamId][0];
- });
- };
+ } else if (transceiver.rtpReceiver && transceiver.rtpReceiver.track) {
+ transceiver.associatedRemoteMediaStreams.forEach(function(s) {
+ var nativeTrack = s.getTracks().find(function(t) {
+ return t.id === transceiver.rtpReceiver.track.id;
+ });
+ if (nativeTrack) {
+ removeTrackFromStreamAndFireEvent(nativeTrack, s);
+ }
+ });
+ transceiver.associatedRemoteMediaStreams = [];
+ }
- var origAddTrack = window.RTCPeerConnection.prototype.addTrack;
- window.RTCPeerConnection.prototype.addTrack = function(track, stream) {
- if (!stream) {
- return origAddTrack.apply(this, arguments);
- }
- this._shimmedLocalStreams = this._shimmedLocalStreams || {};
+ transceiver.localCapabilities = localCapabilities;
+ transceiver.remoteCapabilities = remoteCapabilities;
+ transceiver.rtpReceiver = rtpReceiver;
+ transceiver.rtcpParameters = rtcpParameters;
+ transceiver.sendEncodingParameters = sendEncodingParameters;
+ transceiver.recvEncodingParameters = recvEncodingParameters;
- 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;
- };
+ // Start the RTCRtpReceiver now. The RTPSender is started in
+ // setLocalDescription.
+ pc._transceive(pc.transceivers[sdpMLineIndex],
+ false,
+ isNewTrack);
+ } else if (description.type === 'answer' && !rejected) {
+ transceiver = pc.transceivers[sdpMLineIndex];
+ iceGatherer = transceiver.iceGatherer;
+ iceTransport = transceiver.iceTransport;
+ dtlsTransport = transceiver.dtlsTransport;
+ rtpReceiver = transceiver.rtpReceiver;
+ sendEncodingParameters = transceiver.sendEncodingParameters;
+ localCapabilities = transceiver.localCapabilities;
- var origAddStream = window.RTCPeerConnection.prototype.addStream;
- window.RTCPeerConnection.prototype.addStream = function(stream) {
- var pc = this;
- this._shimmedLocalStreams = this._shimmedLocalStreams || {};
+ pc.transceivers[sdpMLineIndex].recvEncodingParameters =
+ recvEncodingParameters;
+ pc.transceivers[sdpMLineIndex].remoteCapabilities =
+ remoteCapabilities;
+ pc.transceivers[sdpMLineIndex].rtcpParameters = rtcpParameters;
- stream.getTracks().forEach(function(track) {
- var alreadyExists = pc.getSenders().find(function(s) {
- return s.track === track;
- });
- if (alreadyExists) {
- throw new DOMException('Track already exists.',
- 'InvalidAccessError');
+ if (cands.length && iceTransport.state === 'new') {
+ if ((isIceLite || isComplete) &&
+ (!usingBundle || sdpMLineIndex === 0)) {
+ iceTransport.setRemoteCandidates(cands);
+ } else {
+ cands.forEach(function(candidate) {
+ maybeAddCandidate(transceiver.iceTransport, candidate);
+ });
+ }
}
- });
- var existingSenders = pc.getSenders();
- origAddStream.apply(this, arguments);
- var newSenders = pc.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(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(sender) {
- var pc = this;
- this._shimmedLocalStreams = this._shimmedLocalStreams || {};
- if (sender) {
- Object.keys(this._shimmedLocalStreams).forEach(function(streamId) {
- var idx = pc._shimmedLocalStreams[streamId].indexOf(sender);
- if (idx !== -1) {
- pc._shimmedLocalStreams[streamId].splice(idx, 1);
+ if (!usingBundle || sdpMLineIndex === 0) {
+ if (iceTransport.state === 'new') {
+ iceTransport.start(iceGatherer, remoteIceParameters,
+ 'controlling');
}
- if (pc._shimmedLocalStreams[streamId].length === 1) {
- delete pc._shimmedLocalStreams[streamId];
+ if (dtlsTransport.state === 'new') {
+ dtlsTransport.start(remoteDtlsParameters);
}
- });
- }
- return origRemoveTrack.apply(this, arguments);
- };
- },
-
- shimAddTrackRemoveTrack: function(window) {
- var browserDetails = utils.detectBrowser(window);
- // shim addTrack and removeTrack.
- if (window.RTCPeerConnection.prototype.addTrack &&
- browserDetails.version >= 65) {
- return this.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() {
- var pc = this;
- var nativeStreams = origGetLocalStreams.apply(this);
- pc._reverseStreams = pc._reverseStreams || {};
- return nativeStreams.map(function(stream) {
- return pc._reverseStreams[stream.id];
- });
- };
+ }
- var origAddStream = window.RTCPeerConnection.prototype.addStream;
- window.RTCPeerConnection.prototype.addStream = function(stream) {
- var pc = this;
- pc._streams = pc._streams || {};
- pc._reverseStreams = pc._reverseStreams || {};
+ // If the offer contained RTX but the answer did not,
+ // remove RTX from sendEncodingParameters.
+ var commonCapabilities = getCommonCapabilities(
+ transceiver.localCapabilities,
+ transceiver.remoteCapabilities);
- stream.getTracks().forEach(function(track) {
- var alreadyExists = pc.getSenders().find(function(s) {
- return s.track === track;
- });
- if (alreadyExists) {
- throw new DOMException('Track already exists.',
- 'InvalidAccessError');
+ var hasRtx = commonCapabilities.codecs.filter(function(c) {
+ return c.name.toLowerCase() === 'rtx';
+ }).length;
+ if (!hasRtx && transceiver.sendEncodingParameters[0].rtx) {
+ delete transceiver.sendEncodingParameters[0].rtx;
}
- });
- // Add identity mapping for consistency with addTrack.
- // Unless this is being used with a stream from addTrack.
- if (!pc._reverseStreams[stream.id]) {
- var newStream = new window.MediaStream(stream.getTracks());
- pc._streams[stream.id] = newStream;
- pc._reverseStreams[newStream.id] = stream;
- stream = newStream;
- }
- origAddStream.apply(pc, [stream]);
- };
- var origRemoveStream = window.RTCPeerConnection.prototype.removeStream;
- window.RTCPeerConnection.prototype.removeStream = function(stream) {
- var pc = this;
- pc._streams = pc._streams || {};
- pc._reverseStreams = pc._reverseStreams || {};
-
- origRemoveStream.apply(pc, [(pc._streams[stream.id] || stream)]);
- delete pc._reverseStreams[(pc._streams[stream.id] ?
- pc._streams[stream.id].id : stream.id)];
- delete pc._streams[stream.id];
- };
+ pc._transceive(transceiver,
+ direction === 'sendrecv' || direction === 'recvonly',
+ direction === 'sendrecv' || direction === 'sendonly');
- window.RTCPeerConnection.prototype.addTrack = function(track, stream) {
- var pc = this;
- if (pc.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');
+ // TODO: rewrite to use http://w3c.github.io/webrtc-pc/#set-associated-remote-streams
+ if (rtpReceiver &&
+ (direction === 'sendrecv' || direction === 'sendonly')) {
+ track = rtpReceiver.track;
+ if (remoteMsid) {
+ if (!streams[remoteMsid.stream]) {
+ streams[remoteMsid.stream] = new window.MediaStream();
+ }
+ addTrackToStreamAndFireEvent(track, streams[remoteMsid.stream]);
+ receiverList.push([track, rtpReceiver, streams[remoteMsid.stream]]);
+ } else {
+ if (!streams.default) {
+ streams.default = new window.MediaStream();
+ }
+ addTrackToStreamAndFireEvent(track, streams.default);
+ receiverList.push([track, rtpReceiver, streams.default]);
+ }
+ } else {
+ // FIXME: actually the receiver should be created later.
+ delete transceiver.rtpReceiver;
+ }
}
+ });
- var alreadyExists = pc.getSenders().find(function(s) {
- return s.track === track;
- });
- if (alreadyExists) {
- throw new DOMException('Track already exists.',
- 'InvalidAccessError');
- }
+ if (pc._dtlsRole === undefined) {
+ pc._dtlsRole = description.type === 'offer' ? 'active' : 'passive';
+ }
- pc._streams = pc._streams || {};
- pc._reverseStreams = pc._reverseStreams || {};
- var oldStream = pc._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() {
- pc.dispatchEvent(new Event('negotiationneeded'));
- });
- } else {
- var newStream = new window.MediaStream([track]);
- pc._streams[stream.id] = newStream;
- pc._reverseStreams[newStream.id] = stream;
- pc.addStream(newStream);
- }
- return pc.getSenders().find(function(s) {
- return s.track === track;
- });
+ pc._remoteDescription = {
+ type: description.type,
+ sdp: description.sdp
};
-
- // 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
- });
+ if (description.type === 'offer') {
+ pc._updateSignalingState('have-remote-offer');
+ } else {
+ pc._updateSignalingState('stable');
}
- ['createOffer', 'createAnswer'].forEach(function(method) {
- var nativeMethod = window.RTCPeerConnection.prototype[method];
- window.RTCPeerConnection.prototype[method] = function() {
- var pc = this;
- var args = arguments;
- var isLegacyCall = arguments.length &&
- typeof arguments[0] === 'function';
- if (isLegacyCall) {
- return nativeMethod.apply(pc, [
- function(description) {
- var desc = replaceInternalStreamId(pc, description);
- args[0].apply(null, [desc]);
- },
- function(err) {
- if (args[1]) {
- args[1].apply(null, err);
- }
- }, arguments[2]
- ]);
+ Object.keys(streams).forEach(function(sid) {
+ var stream = streams[sid];
+ if (stream.getTracks().length) {
+ if (pc.remoteStreams.indexOf(stream) === -1) {
+ pc.remoteStreams.push(stream);
+ var event = new Event('addstream');
+ event.stream = stream;
+ window.setTimeout(function() {
+ pc._dispatchEvent('addstream', event);
+ });
}
- return nativeMethod.apply(pc, arguments)
- .then(function(description) {
- return replaceInternalStreamId(pc, description);
- });
- };
- });
-
- var origSetLocalDescription =
- window.RTCPeerConnection.prototype.setLocalDescription;
- window.RTCPeerConnection.prototype.setLocalDescription = function() {
- var pc = this;
- if (!arguments.length || !arguments[0].type) {
- return origSetLocalDescription.apply(pc, arguments);
- }
- arguments[0] = replaceExternalStreamId(pc, arguments[0]);
- return origSetLocalDescription.apply(pc, 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() {
- var pc = this;
- var description = origLocalDescription.get.apply(this);
- if (description.type === '') {
- return description;
- }
- return replaceInternalStreamId(pc, description);
+ receiverList.forEach(function(item) {
+ var track = item[0];
+ var receiver = item[1];
+ if (stream.id !== item[2].id) {
+ return;
}
+ fireAddTrack(pc, track, receiver, [stream]);
});
-
- window.RTCPeerConnection.prototype.removeTrack = function(sender) {
- var pc = this;
- if (pc.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 === pc;
- if (!isLocal) {
- throw new DOMException('Sender was not created by this connection.',
- 'InvalidAccessError');
- }
-
- // Search for the native stream the senders track belongs to.
- pc._streams = pc._streams || {};
- var stream;
- Object.keys(pc._streams).forEach(function(streamid) {
- var hasTrack = pc._streams[streamid].getTracks().find(function(track) {
- return sender.track === track;
- });
- if (hasTrack) {
- stream = pc._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.
- pc.removeStream(pc._reverseStreams[stream.id]);
- } else {
- // relying on the same odd chrome behaviour as above.
- stream.removeTrack(sender.track);
- }
- pc.dispatchEvent(new Event('negotiationneeded'));
+ });
+ receiverList.forEach(function(item) {
+ if (item[2]) {
+ return;
}
- };
- },
-
- shimPeerConnection: function(window) {
- var browserDetails = utils.detectBrowser(window);
-
- // The RTCPeerConnection object.
- if (!window.RTCPeerConnection && window.webkitRTCPeerConnection) {
- window.RTCPeerConnection = function(pcConfig, pcConstraints) {
- // Translate iceTransportPolicy to iceTransports,
- // see https://code.google.com/p/webrtc/issues/detail?id=4869
- // this was fixed in M56 along with unprefixing RTCPeerConnection.
- logging('PeerConnection');
- if (pcConfig && pcConfig.iceTransportPolicy) {
- pcConfig.iceTransports = pcConfig.iceTransportPolicy;
- }
+ fireAddTrack(pc, item[0], item[1], []);
+ });
- return new window.webkitRTCPeerConnection(pcConfig, pcConstraints);
- };
- window.RTCPeerConnection.prototype =
- window.webkitRTCPeerConnection.prototype;
- // wrap static methods. Currently just generateCertificate.
- if (window.webkitRTCPeerConnection.generateCertificate) {
- Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
- get: function() {
- return window.webkitRTCPeerConnection.generateCertificate;
- }
- });
+ // check whether addIceCandidate({}) was called within four seconds after
+ // setRemoteDescription.
+ window.setTimeout(function() {
+ if (!(pc && pc.transceivers)) {
+ return;
}
- } else {
- // migrate from non-spec RTCIceServer.url to RTCIceServer.urls
- var OrigPeerConnection = window.RTCPeerConnection;
- window.RTCPeerConnection = function(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;
- 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.
- Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
- get: function() {
- return OrigPeerConnection.generateCertificate;
+ pc.transceivers.forEach(function(transceiver) {
+ if (transceiver.iceTransport &&
+ transceiver.iceTransport.state === 'new' &&
+ transceiver.iceTransport.getRemoteCandidates().length > 0) {
+ console.warn('Timeout for addRemoteCandidate. Consider sending ' +
+ 'an end-of-candidates notification');
+ transceiver.iceTransport.addRemoteCandidate({});
}
});
- }
+ }, 4000);
- var origGetStats = window.RTCPeerConnection.prototype.getStats;
- window.RTCPeerConnection.prototype.getStats = function(selector,
- successCallback, errorCallback) {
- var pc = this;
- var args = arguments;
+ return Promise.resolve();
+ };
- // 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);
+ RTCPeerConnection.prototype.close = function() {
+ this.transceivers.forEach(function(transceiver) {
+ /* not yet
+ if (transceiver.iceGatherer) {
+ transceiver.iceGatherer.close();
}
-
- // 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 arguments[0] !== 'function')) {
- return origGetStats.apply(this, []);
+ */
+ if (transceiver.iceTransport) {
+ transceiver.iceTransport.stop();
}
+ if (transceiver.dtlsTransport) {
+ transceiver.dtlsTransport.stop();
+ }
+ if (transceiver.rtpSender) {
+ transceiver.rtpSender.stop();
+ }
+ if (transceiver.rtpReceiver) {
+ transceiver.rtpReceiver.stop();
+ }
+ });
+ // FIXME: clean up tracks, local streams, remote streams, etc
+ this._isClosed = true;
+ this._updateSignalingState('closed');
+ };
- var fixChromeStats_ = function(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(stats) {
- return new Map(Object.keys(stats).map(function(key) {
- return [key, stats[key]];
- }));
- };
-
- if (arguments.length >= 2) {
- var successCallbackWrapper_ = function(response) {
- args[1](makeMapStats(fixChromeStats_(response)));
- };
+ // Update the signaling state.
+ RTCPeerConnection.prototype._updateSignalingState = function(newState) {
+ this.signalingState = newState;
+ var event = new Event('signalingstatechange');
+ this._dispatchEvent('signalingstatechange', event);
+ };
- return origGetStats.apply(this, [successCallbackWrapper_,
- arguments[0]]);
+ // Determine whether to fire the negotiationneeded event.
+ RTCPeerConnection.prototype._maybeFireNegotiationNeeded = function() {
+ var pc = this;
+ if (this.signalingState !== 'stable' || this.needNegotiation === true) {
+ return;
+ }
+ this.needNegotiation = true;
+ window.setTimeout(function() {
+ if (pc.needNegotiation) {
+ pc.needNegotiation = false;
+ var event = new Event('negotiationneeded');
+ pc._dispatchEvent('negotiationneeded', event);
}
+ }, 0);
+ };
- // promise-support
- return new Promise(function(resolve, reject) {
- origGetStats.apply(pc, [
- function(response) {
- resolve(makeMapStats(fixChromeStats_(response)));
- }, reject]);
- }).then(successCallback, errorCallback);
+ // Update the ice connection state.
+ RTCPeerConnection.prototype._updateIceConnectionState = function() {
+ var newState;
+ var states = {
+ 'new': 0,
+ closed: 0,
+ checking: 0,
+ connected: 0,
+ completed: 0,
+ disconnected: 0,
+ failed: 0
};
+ this.transceivers.forEach(function(transceiver) {
+ if (transceiver.iceTransport && !transceiver.rejected) {
+ states[transceiver.iceTransport.state]++;
+ }
+ });
- // add promise support -- natively available in Chrome 51
- if (browserDetails.version < 51) {
- ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate']
- .forEach(function(method) {
- var nativeMethod = window.RTCPeerConnection.prototype[method];
- window.RTCPeerConnection.prototype[method] = function() {
- var args = arguments;
- var pc = this;
- var promise = new Promise(function(resolve, reject) {
- nativeMethod.apply(pc, [args[0], resolve, reject]);
- });
- if (args.length < 2) {
- return promise;
- }
- return promise.then(function() {
- args[1].apply(null, []);
- },
- function(err) {
- if (args.length >= 3) {
- args[2].apply(null, [err]);
- }
- });
- };
- });
+ newState = 'new';
+ if (states.failed > 0) {
+ newState = 'failed';
+ } else if (states.checking > 0) {
+ newState = 'checking';
+ } else if (states.disconnected > 0) {
+ newState = 'disconnected';
+ } else if (states.new > 0) {
+ newState = 'new';
+ } else if (states.connected > 0) {
+ newState = 'connected';
+ } else if (states.completed > 0) {
+ newState = 'completed';
}
- // promise support for createOffer and createAnswer. Available (without
- // bugs) since M52: crbug/619289
- if (browserDetails.version < 52) {
- ['createOffer', 'createAnswer'].forEach(function(method) {
- var nativeMethod = window.RTCPeerConnection.prototype[method];
- window.RTCPeerConnection.prototype[method] = function() {
- var pc = this;
- if (arguments.length < 1 || (arguments.length === 1 &&
- typeof arguments[0] === 'object')) {
- var opts = arguments.length === 1 ? arguments[0] : undefined;
- return new Promise(function(resolve, reject) {
- nativeMethod.apply(pc, [resolve, reject, opts]);
- });
- }
- return nativeMethod.apply(this, arguments);
- };
- });
+ if (newState !== this.iceConnectionState) {
+ this.iceConnectionState = newState;
+ var event = new Event('iceconnectionstatechange');
+ this._dispatchEvent('iceconnectionstatechange', event);
}
+ };
- // shim implicit creation of RTCSessionDescription/RTCIceCandidate
- ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate']
- .forEach(function(method) {
- var nativeMethod = window.RTCPeerConnection.prototype[method];
- window.RTCPeerConnection.prototype[method] = function() {
- arguments[0] = new ((method === 'addIceCandidate') ?
- window.RTCIceCandidate :
- window.RTCSessionDescription)(arguments[0]);
- return nativeMethod.apply(this, arguments);
- };
- });
-
- // support for addIceCandidate(null or undefined)
- var nativeAddIceCandidate =
- window.RTCPeerConnection.prototype.addIceCandidate;
- window.RTCPeerConnection.prototype.addIceCandidate = function() {
- if (!arguments[0]) {
- if (arguments[1]) {
- arguments[1].apply(null);
- }
- return Promise.resolve();
- }
- return nativeAddIceCandidate.apply(this, arguments);
+ // Update the connection state.
+ RTCPeerConnection.prototype._updateConnectionState = function() {
+ var newState;
+ var states = {
+ 'new': 0,
+ closed: 0,
+ connecting: 0,
+ connected: 0,
+ completed: 0,
+ disconnected: 0,
+ failed: 0
};
- }
-};
+ this.transceivers.forEach(function(transceiver) {
+ if (transceiver.iceTransport && transceiver.dtlsTransport &&
+ !transceiver.rejected) {
+ states[transceiver.iceTransport.state]++;
+ states[transceiver.dtlsTransport.state]++;
+ }
+ });
+ // ICETransport.completed and connected are the same for this purpose.
+ states.connected += states.completed;
-},{"../utils.js":13,"./getusermedia":6}],6:[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';
-var utils = require('../utils.js');
-var logging = utils.log;
+ newState = 'new';
+ if (states.failed > 0) {
+ newState = 'failed';
+ } else if (states.connecting > 0) {
+ newState = 'connecting';
+ } else if (states.disconnected > 0) {
+ newState = 'disconnected';
+ } else if (states.new > 0) {
+ newState = 'new';
+ } else if (states.connected > 0) {
+ newState = 'connected';
+ }
-// Expose public methods.
-module.exports = function(window) {
- var browserDetails = utils.detectBrowser(window);
- var navigator = window && window.navigator;
+ if (newState !== this.connectionState) {
+ this.connectionState = newState;
+ var event = new Event('connectionstatechange');
+ this._dispatchEvent('connectionstatechange', event);
+ }
+ };
- var constraintsToChrome_ = function(c) {
- if (typeof c !== 'object' || c.mandatory || c.optional) {
- return c;
+ RTCPeerConnection.prototype.createOffer = function() {
+ var pc = this;
+
+ if (pc._isClosed) {
+ return Promise.reject(makeError('InvalidStateError',
+ 'Can not call createOffer after close'));
}
- 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 numAudioTracks = pc.transceivers.filter(function(t) {
+ return t.kind === 'audio';
+ }).length;
+ var numVideoTracks = pc.transceivers.filter(function(t) {
+ return t.kind === 'video';
+ }).length;
+
+ // Determine number of audio and video tracks we need to send/recv.
+ var offerOptions = arguments[0];
+ if (offerOptions) {
+ // Reject Chrome legacy constraints.
+ if (offerOptions.mandatory || offerOptions.optional) {
+ throw new TypeError(
+ 'Legacy mandatory/optional constraints not supported.');
}
- var oldname_ = function(prefix, name) {
- if (prefix) {
- return prefix + name.charAt(0).toUpperCase() + name.slice(1);
+ if (offerOptions.offerToReceiveAudio !== undefined) {
+ if (offerOptions.offerToReceiveAudio === true) {
+ numAudioTracks = 1;
+ } else if (offerOptions.offerToReceiveAudio === false) {
+ numAudioTracks = 0;
+ } else {
+ numAudioTracks = offerOptions.offerToReceiveAudio;
}
- 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);
+ }
+ if (offerOptions.offerToReceiveVideo !== undefined) {
+ if (offerOptions.offerToReceiveVideo === true) {
+ numVideoTracks = 1;
+ } else if (offerOptions.offerToReceiveVideo === false) {
+ numVideoTracks = 0;
} else {
- oc[oldname_('', key)] = r.ideal;
- cc.optional.push(oc);
+ numVideoTracks = offerOptions.offerToReceiveVideo;
}
}
- 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];
- }
- });
+ }
+
+ pc.transceivers.forEach(function(transceiver) {
+ if (transceiver.kind === 'audio') {
+ numAudioTracks--;
+ if (numAudioTracks < 0) {
+ transceiver.wantReceive = false;
+ }
+ } else if (transceiver.kind === 'video') {
+ numVideoTracks--;
+ if (numVideoTracks < 0) {
+ transceiver.wantReceive = false;
+ }
+ }
+ });
+
+ // Create M-lines for recvonly streams.
+ while (numAudioTracks > 0 || numVideoTracks > 0) {
+ if (numAudioTracks > 0) {
+ pc._createTransceiver('audio');
+ numAudioTracks--;
+ }
+ if (numVideoTracks > 0) {
+ pc._createTransceiver('video');
+ numVideoTracks--;
+ }
+ }
+
+ var sdp = SDPUtils.writeSessionBoilerplate(pc._sdpSessionId,
+ pc._sdpSessionVersion++);
+ pc.transceivers.forEach(function(transceiver, sdpMLineIndex) {
+ // For each track, create an ice gatherer, ice transport,
+ // dtls transport, potentially rtpsender and rtpreceiver.
+ var track = transceiver.track;
+ var kind = transceiver.kind;
+ var mid = transceiver.mid || SDPUtils.generateIdentifier();
+ transceiver.mid = mid;
+
+ if (!transceiver.iceGatherer) {
+ transceiver.iceGatherer = pc._createIceGatherer(sdpMLineIndex,
+ pc.usingBundle);
}
- });
- if (c.advanced) {
- cc.optional = (cc.optional || []).concat(c.advanced);
- }
- return cc;
- };
- var shimConstraints_ = function(constraints, func) {
- if (browserDetails.version >= 61) {
- return func(constraints);
- }
- constraints = JSON.parse(JSON.stringify(constraints));
- if (constraints && typeof constraints.audio === 'object') {
- var remap = function(obj, a, b) {
- if (a in obj && !(b in obj)) {
- obj[b] = obj[a];
- delete obj[a];
+ var localCapabilities = window.RTCRtpSender.getCapabilities(kind);
+ // filter RTX until additional stuff needed for RTX is implemented
+ // in adapter.js
+ if (edgeVersion < 15019) {
+ localCapabilities.codecs = localCapabilities.codecs.filter(
+ function(codec) {
+ return codec.name !== 'rtx';
+ });
+ }
+ localCapabilities.codecs.forEach(function(codec) {
+ // work around https://bugs.chromium.org/p/webrtc/issues/detail?id=6552
+ // by adding level-asymmetry-allowed=1
+ if (codec.name === 'H264' &&
+ codec.parameters['level-asymmetry-allowed'] === undefined) {
+ codec.parameters['level-asymmetry-allowed'] = '1';
}
- };
- 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 === '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;
- 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().indexOf(match) !== -1;
- });
- });
- if (!dev && devices.length && matches.indexOf('back') !== -1) {
- dev = devices[devices.length - 1]; // more likely the back cam
- }
- if (dev) {
- constraints.video.deviceId = face.exact ? {exact: dev.deviceId} :
- {ideal: dev.deviceId};
+ // for subsequent offers, we might have to re-use the payload
+ // type of the last offer.
+ if (transceiver.remoteCapabilities &&
+ transceiver.remoteCapabilities.codecs) {
+ transceiver.remoteCapabilities.codecs.forEach(function(remoteCodec) {
+ if (codec.name.toLowerCase() === remoteCodec.name.toLowerCase() &&
+ codec.clockRate === remoteCodec.clockRate) {
+ codec.preferredPayloadType = remoteCodec.payloadType;
}
- constraints.video = constraintsToChrome_(constraints.video);
- logging('chrome: ' + JSON.stringify(constraints));
- return func(constraints);
});
}
+ });
+ localCapabilities.headerExtensions.forEach(function(hdrExt) {
+ var remoteExtensions = transceiver.remoteCapabilities &&
+ transceiver.remoteCapabilities.headerExtensions || [];
+ remoteExtensions.forEach(function(rHdrExt) {
+ if (hdrExt.uri === rHdrExt.uri) {
+ hdrExt.id = rHdrExt.id;
+ }
+ });
+ });
+
+ // generate an ssrc now, to be used later in rtpSender.send
+ var sendEncodingParameters = transceiver.sendEncodingParameters || [{
+ ssrc: (2 * sdpMLineIndex + 1) * 1001
+ }];
+ if (track) {
+ // add RTX
+ if (edgeVersion >= 15019 && kind === 'video' &&
+ !sendEncodingParameters[0].rtx) {
+ sendEncodingParameters[0].rtx = {
+ ssrc: sendEncodingParameters[0].ssrc + 1
+ };
+ }
}
- constraints.video = constraintsToChrome_(constraints.video);
- }
- logging('chrome: ' + JSON.stringify(constraints));
- return func(constraints);
- };
- var shimError_ = function(e) {
- return {
- name: {
- PermissionDeniedError: 'NotAllowedError',
- InvalidStateError: 'NotReadableError',
- DevicesNotFoundError: 'NotFoundError',
- ConstraintNotSatisfiedError: 'OverconstrainedError',
- TrackStartError: 'NotReadableError',
- MediaDeviceFailedDueToShutdown: 'NotReadableError',
- MediaDeviceKillSwitchOn: 'NotReadableError'
- }[e.name] || e.name,
- message: e.message,
- constraint: e.constraintName,
- toString: function() {
- return this.name + (this.message && ': ') + this.message;
+ if (transceiver.wantReceive) {
+ transceiver.rtpReceiver = new window.RTCRtpReceiver(
+ transceiver.dtlsTransport, kind);
}
- };
- };
- var getUserMedia_ = function(constraints, onSuccess, onError) {
- shimConstraints_(constraints, function(c) {
- navigator.webkitGetUserMedia(c, onSuccess, function(e) {
- if (onError) {
- onError(shimError_(e));
- }
- });
+ transceiver.localCapabilities = localCapabilities;
+ transceiver.sendEncodingParameters = sendEncodingParameters;
});
- };
- navigator.getUserMedia = getUserMedia_;
+ // always offer BUNDLE and dispose on return if not supported.
+ if (pc._config.bundlePolicy !== 'max-compat') {
+ sdp += 'a=group:BUNDLE ' + pc.transceivers.map(function(t) {
+ return t.mid;
+ }).join(' ') + '\r\n';
+ }
+ sdp += 'a=ice-options:trickle\r\n';
- // Returns the result of getUserMedia as a Promise.
- var getUserMediaPromise_ = function(constraints) {
- return new Promise(function(resolve, reject) {
- navigator.getUserMedia(constraints, resolve, reject);
- });
- };
+ pc.transceivers.forEach(function(transceiver, sdpMLineIndex) {
+ sdp += writeMediaSection(transceiver, transceiver.localCapabilities,
+ 'offer', transceiver.stream, pc._dtlsRole);
+ sdp += 'a=rtcp-rsize\r\n';
- if (!navigator.mediaDevices) {
- navigator.mediaDevices = {
- getUserMedia: getUserMediaPromise_,
- enumerateDevices: function() {
- return new Promise(function(resolve) {
- var kinds = {audio: 'audioinput', video: 'videoinput'};
- return window.MediaStreamTrack.getSources(function(devices) {
- resolve(devices.map(function(device) {
- return {label: device.label,
- kind: kinds[device.kind],
- deviceId: device.id,
- groupId: ''};
- }));
- });
+ if (transceiver.iceGatherer && pc.iceGatheringState !== 'new' &&
+ (sdpMLineIndex === 0 || !pc.usingBundle)) {
+ transceiver.iceGatherer.getLocalCandidates().forEach(function(cand) {
+ cand.component = 1;
+ sdp += 'a=' + SDPUtils.writeCandidate(cand) + '\r\n';
});
- },
- getSupportedConstraints: function() {
- return {
- deviceId: true, echoCancellation: true, facingMode: true,
- frameRate: true, height: true, width: true
- };
+
+ if (transceiver.iceGatherer.state === 'completed') {
+ sdp += 'a=end-of-candidates\r\n';
+ }
}
- };
- }
+ });
- // A shim for getUserMedia method on the mediaDevices object.
- // TODO(KaptenJansson) remove once implemented in Chrome stable.
- if (!navigator.mediaDevices.getUserMedia) {
- navigator.mediaDevices.getUserMedia = function(constraints) {
- return getUserMediaPromise_(constraints);
- };
- } else {
- // Even though Chrome 45 has navigator.mediaDevices and a getUserMedia
- // function which returns a Promise, it does not accept spec-style
- // constraints.
- 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));
- });
- });
- };
- }
+ var desc = new window.RTCSessionDescription({
+ type: 'offer',
+ sdp: sdp
+ });
+ return Promise.resolve(desc);
+ };
- // Dummy devicechange event methods.
- // TODO(KaptenJansson) remove once implemented in Chrome stable.
- if (typeof navigator.mediaDevices.addEventListener === 'undefined') {
- navigator.mediaDevices.addEventListener = function() {
- logging('Dummy mediaDevices.addEventListener called.');
- };
- }
- if (typeof navigator.mediaDevices.removeEventListener === 'undefined') {
- navigator.mediaDevices.removeEventListener = function() {
- logging('Dummy mediaDevices.removeEventListener called.');
- };
- }
-};
+ RTCPeerConnection.prototype.createAnswer = function() {
+ var pc = this;
-},{"../utils.js":13}],7:[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';
+ if (pc._isClosed) {
+ return Promise.reject(makeError('InvalidStateError',
+ 'Can not call createAnswer after close'));
+ }
-var SDPUtils = require('sdp');
-var utils = require('./utils');
-
-module.exports = {
- shimRTCIceCandidate: function(window) {
- // foundation is arbitrarily chosen as an indicator for full support for
- // https://w3c.github.io/webrtc-pc/#rtcicecandidate-interface
- if (window.RTCIceCandidate && 'foundation' in
- window.RTCIceCandidate.prototype) {
- return;
+ if (!(pc.signalingState === 'have-remote-offer' ||
+ pc.signalingState === 'have-local-pranswer')) {
+ return Promise.reject(makeError('InvalidStateError',
+ 'Can not call createAnswer in signalingState ' + pc.signalingState));
}
- var NativeRTCIceCandidate = window.RTCIceCandidate;
- window.RTCIceCandidate = function(args) {
- // Remove the a= which shouldn't be part of the candidate string.
- if (typeof args === 'object' && args.candidate &&
- args.candidate.indexOf('a=') === 0) {
- args = JSON.parse(JSON.stringify(args));
- args.candidate = args.candidate.substr(2);
+ var sdp = SDPUtils.writeSessionBoilerplate(pc._sdpSessionId,
+ pc._sdpSessionVersion++);
+ if (pc.usingBundle) {
+ sdp += 'a=group:BUNDLE ' + pc.transceivers.map(function(t) {
+ return t.mid;
+ }).join(' ') + '\r\n';
+ }
+ sdp += 'a=ice-options:trickle\r\n';
+
+ var mediaSectionsInOffer = SDPUtils.getMediaSections(
+ pc._remoteDescription.sdp).length;
+ pc.transceivers.forEach(function(transceiver, sdpMLineIndex) {
+ if (sdpMLineIndex + 1 > mediaSectionsInOffer) {
+ return;
+ }
+ if (transceiver.rejected) {
+ if (transceiver.kind === 'application') {
+ if (transceiver.protocol === 'DTLS/SCTP') { // legacy fmt
+ sdp += 'm=application 0 DTLS/SCTP 5000\r\n';
+ } else {
+ sdp += 'm=application 0 ' + transceiver.protocol +
+ ' webrtc-datachannel\r\n';
+ }
+ } else if (transceiver.kind === 'audio') {
+ sdp += 'm=audio 0 UDP/TLS/RTP/SAVPF 0\r\n' +
+ 'a=rtpmap:0 PCMU/8000\r\n';
+ } else if (transceiver.kind === 'video') {
+ sdp += 'm=video 0 UDP/TLS/RTP/SAVPF 120\r\n' +
+ 'a=rtpmap:120 VP8/90000\r\n';
+ }
+ sdp += 'c=IN IP4 0.0.0.0\r\n' +
+ 'a=inactive\r\n' +
+ 'a=mid:' + transceiver.mid + '\r\n';
+ return;
}
- // Augment the native candidate with the parsed fields.
- var nativeCandidate = new NativeRTCIceCandidate(args);
- var parsedCandidate = SDPUtils.parseCandidate(args.candidate);
- var augmentedCandidate = Object.assign(nativeCandidate,
- parsedCandidate);
+ // FIXME: look at direction.
+ if (transceiver.stream) {
+ var localTrack;
+ if (transceiver.kind === 'audio') {
+ localTrack = transceiver.stream.getAudioTracks()[0];
+ } else if (transceiver.kind === 'video') {
+ localTrack = transceiver.stream.getVideoTracks()[0];
+ }
+ if (localTrack) {
+ // add RTX
+ if (edgeVersion >= 15019 && transceiver.kind === 'video' &&
+ !transceiver.sendEncodingParameters[0].rtx) {
+ transceiver.sendEncodingParameters[0].rtx = {
+ ssrc: transceiver.sendEncodingParameters[0].ssrc + 1
+ };
+ }
+ }
+ }
- // Add a serializer that does not serialize the extra attributes.
- augmentedCandidate.toJSON = function() {
- return {
- candidate: augmentedCandidate.candidate,
- sdpMid: augmentedCandidate.sdpMid,
- sdpMLineIndex: augmentedCandidate.sdpMLineIndex,
- usernameFragment: augmentedCandidate.usernameFragment,
- };
- };
- return augmentedCandidate;
- };
+ // Calculate intersection of capabilities.
+ var commonCapabilities = getCommonCapabilities(
+ transceiver.localCapabilities,
+ transceiver.remoteCapabilities);
- // 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'
- });
+ var hasRtx = commonCapabilities.codecs.filter(function(c) {
+ return c.name.toLowerCase() === 'rtx';
+ }).length;
+ if (!hasRtx && transceiver.sendEncodingParameters[0].rtx) {
+ delete transceiver.sendEncodingParameters[0].rtx;
}
- return e;
- });
- },
- // shimCreateObjectURL must be called before shimSourceObject to avoid loop.
+ sdp += writeMediaSection(transceiver, commonCapabilities,
+ 'answer', transceiver.stream, pc._dtlsRole);
+ if (transceiver.rtcpParameters &&
+ transceiver.rtcpParameters.reducedSize) {
+ sdp += 'a=rtcp-rsize\r\n';
+ }
+ });
- shimCreateObjectURL: function(window) {
- var URL = window && window.URL;
+ var desc = new window.RTCSessionDescription({
+ type: 'answer',
+ sdp: sdp
+ });
+ return Promise.resolve(desc);
+ };
- if (!(typeof window === 'object' && window.HTMLMediaElement &&
- 'srcObject' in window.HTMLMediaElement.prototype &&
- URL.createObjectURL && URL.revokeObjectURL)) {
- // Only shim CreateObjectURL using srcObject if srcObject exists.
- return undefined;
+ RTCPeerConnection.prototype.addIceCandidate = function(candidate) {
+ var pc = this;
+ var sections;
+ if (candidate && !(candidate.sdpMLineIndex !== undefined ||
+ candidate.sdpMid)) {
+ return Promise.reject(new TypeError('sdpMLineIndex or sdpMid required'));
}
- var nativeCreateObjectURL = URL.createObjectURL.bind(URL);
- var nativeRevokeObjectURL = URL.revokeObjectURL.bind(URL);
- var streams = new Map(), newId = 0;
-
- URL.createObjectURL = function(stream) {
- if ('getTracks' in stream) {
- var url = 'polyblob:' + (++newId);
- streams.set(url, stream);
- utils.deprecated('URL.createObjectURL(stream)',
- 'elem.srcObject = stream');
- return url;
- }
- return nativeCreateObjectURL(stream);
- };
- URL.revokeObjectURL = function(url) {
- nativeRevokeObjectURL(url);
- streams.delete(url);
- };
+ // TODO: needs to go into ops queue.
+ return new Promise(function(resolve, reject) {
+ if (!pc._remoteDescription) {
+ return reject(makeError('InvalidStateError',
+ 'Can not add ICE candidate without a remote description'));
+ } else if (!candidate || candidate.candidate === '') {
+ for (var j = 0; j < pc.transceivers.length; j++) {
+ if (pc.transceivers[j].rejected) {
+ continue;
+ }
+ pc.transceivers[j].iceTransport.addRemoteCandidate({});
+ sections = SDPUtils.getMediaSections(pc._remoteDescription.sdp);
+ sections[j] += 'a=end-of-candidates\r\n';
+ pc._remoteDescription.sdp =
+ SDPUtils.getDescription(pc._remoteDescription.sdp) +
+ sections.join('');
+ if (pc.usingBundle) {
+ break;
+ }
+ }
+ } else {
+ var sdpMLineIndex = candidate.sdpMLineIndex;
+ if (candidate.sdpMid) {
+ for (var i = 0; i < pc.transceivers.length; i++) {
+ if (pc.transceivers[i].mid === candidate.sdpMid) {
+ sdpMLineIndex = i;
+ break;
+ }
+ }
+ }
+ var transceiver = pc.transceivers[sdpMLineIndex];
+ if (transceiver) {
+ if (transceiver.rejected) {
+ return resolve();
+ }
+ var cand = Object.keys(candidate.candidate).length > 0 ?
+ SDPUtils.parseCandidate(candidate.candidate) : {};
+ // Ignore Chrome's invalid candidates since Edge does not like them.
+ if (cand.protocol === 'tcp' && (cand.port === 0 || cand.port === 9)) {
+ return resolve();
+ }
+ // Ignore RTCP candidates, we assume RTCP-MUX.
+ if (cand.component && cand.component !== 1) {
+ return resolve();
+ }
+ // when using bundle, avoid adding candidates to the wrong
+ // ice transport. And avoid adding candidates added in the SDP.
+ if (sdpMLineIndex === 0 || (sdpMLineIndex > 0 &&
+ transceiver.iceTransport !== pc.transceivers[0].iceTransport)) {
+ if (!maybeAddCandidate(transceiver.iceTransport, cand)) {
+ return reject(makeError('OperationError',
+ 'Can not add ICE candidate'));
+ }
+ }
- var dsc = Object.getOwnPropertyDescriptor(window.HTMLMediaElement.prototype,
- 'src');
- Object.defineProperty(window.HTMLMediaElement.prototype, 'src', {
- get: function() {
- return dsc.get.apply(this);
- },
- set: function(url) {
- this.srcObject = streams.get(url) || null;
- return dsc.set.apply(this, [url]);
+ // update the remoteDescription.
+ var candidateString = candidate.candidate.trim();
+ if (candidateString.indexOf('a=') === 0) {
+ candidateString = candidateString.substr(2);
+ }
+ sections = SDPUtils.getMediaSections(pc._remoteDescription.sdp);
+ sections[sdpMLineIndex] += 'a=' +
+ (cand.type ? candidateString : 'end-of-candidates')
+ + '\r\n';
+ pc._remoteDescription.sdp =
+ SDPUtils.getDescription(pc._remoteDescription.sdp) +
+ sections.join('');
+ } else {
+ return reject(makeError('OperationError',
+ 'Can not add ICE candidate'));
+ }
}
+ resolve();
});
+ };
- var nativeSetAttribute = window.HTMLMediaElement.prototype.setAttribute;
- window.HTMLMediaElement.prototype.setAttribute = function() {
- if (arguments.length === 2 &&
- ('' + arguments[0]).toLowerCase() === 'src') {
- this.srcObject = streams.get(arguments[1]) || null;
+ RTCPeerConnection.prototype.getStats = function(selector) {
+ if (selector && selector instanceof window.MediaStreamTrack) {
+ var senderOrReceiver = null;
+ this.transceivers.forEach(function(transceiver) {
+ if (transceiver.rtpSender &&
+ transceiver.rtpSender.track === selector) {
+ senderOrReceiver = transceiver.rtpSender;
+ } else if (transceiver.rtpReceiver &&
+ transceiver.rtpReceiver.track === selector) {
+ senderOrReceiver = transceiver.rtpReceiver;
+ }
+ });
+ if (!senderOrReceiver) {
+ throw makeError('InvalidAccessError', 'Invalid selector.');
}
- return nativeSetAttribute.apply(this, arguments);
- };
- },
-
- shimMaxMessageSize: function(window) {
- if (window.RTCSctpTransport || !window.RTCPeerConnection) {
- return;
+ return senderOrReceiver.getStats();
}
- var browserDetails = utils.detectBrowser(window);
- if (!('sctp' in window.RTCPeerConnection.prototype)) {
- Object.defineProperty(window.RTCPeerConnection.prototype, 'sctp', {
- get: function() {
- return typeof this._sctp === 'undefined' ? null : this._sctp;
- }
+ var promises = [];
+ this.transceivers.forEach(function(transceiver) {
+ ['rtpSender', 'rtpReceiver', 'iceGatherer', 'iceTransport',
+ 'dtlsTransport'].forEach(function(method) {
+ if (transceiver[method]) {
+ promises.push(transceiver[method].getStats());
+ }
+ });
+ });
+ return Promise.all(promises).then(function(allStats) {
+ var results = new Map();
+ allStats.forEach(function(stats) {
+ stats.forEach(function(stat) {
+ results.set(stat.id, stat);
+ });
});
+ return results;
+ });
+ };
+
+ // fix low-level stat names and return Map instead of object.
+ var ortcObjects = ['RTCRtpSender', 'RTCRtpReceiver', 'RTCIceGatherer',
+ 'RTCIceTransport', 'RTCDtlsTransport'];
+ ortcObjects.forEach(function(ortcObjectName) {
+ var obj = window[ortcObjectName];
+ if (obj && obj.prototype && obj.prototype.getStats) {
+ var nativeGetstats = obj.prototype.getStats;
+ obj.prototype.getStats = function() {
+ return nativeGetstats.apply(this)
+ .then(function(nativeStats) {
+ var mapStats = new Map();
+ Object.keys(nativeStats).forEach(function(id) {
+ nativeStats[id].type = fixStatsType(nativeStats[id]);
+ mapStats.set(id, nativeStats[id]);
+ });
+ return mapStats;
+ });
+ };
}
+ });
- var sctpInDescription = function(description) {
- var sections = SDPUtils.splitSections(description.sdp);
- sections.shift();
- return sections.some(function(mediaSection) {
- var mLine = SDPUtils.parseMLine(mediaSection);
- return mLine && mLine.kind === 'application'
- && mLine.protocol.indexOf('SCTP') !== -1;
- });
+ // legacy callback shims. Should be moved to adapter.js some days.
+ var methods = ['createOffer', 'createAnswer'];
+ methods.forEach(function(method) {
+ var nativeMethod = RTCPeerConnection.prototype[method];
+ RTCPeerConnection.prototype[method] = function() {
+ var args = arguments;
+ if (typeof args[0] === 'function' ||
+ typeof args[1] === 'function') { // legacy
+ return nativeMethod.apply(this, [arguments[2]])
+ .then(function(description) {
+ if (typeof args[0] === 'function') {
+ args[0].apply(null, [description]);
+ }
+ }, function(error) {
+ if (typeof args[1] === 'function') {
+ args[1].apply(null, [error]);
+ }
+ });
+ }
+ return nativeMethod.apply(this, arguments);
};
+ });
- var getRemoteFirefoxVersion = function(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;
+ methods = ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate'];
+ methods.forEach(function(method) {
+ var nativeMethod = RTCPeerConnection.prototype[method];
+ RTCPeerConnection.prototype[method] = function() {
+ var args = arguments;
+ if (typeof args[1] === 'function' ||
+ typeof args[2] === 'function') { // legacy
+ return nativeMethod.apply(this, arguments)
+ .then(function() {
+ if (typeof args[1] === 'function') {
+ args[1].apply(null);
+ }
+ }, function(error) {
+ if (typeof args[2] === 'function') {
+ args[2].apply(null, [error]);
+ }
+ });
}
- var version = parseInt(match[1], 10);
- // Test for NaN (yes, this is ugly)
- return version !== version ? -1 : version;
+ return nativeMethod.apply(this, arguments);
};
+ });
- var getCanSendMaxMessageSize = function(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;
+ // getStats is special. It doesn't have a spec legacy method yet we support
+ // getStats(something, cb) without error callbacks.
+ ['getStats'].forEach(function(method) {
+ var nativeMethod = RTCPeerConnection.prototype[method];
+ RTCPeerConnection.prototype[method] = function() {
+ var args = arguments;
+ if (typeof args[1] === 'function') {
+ return nativeMethod.apply(this, arguments)
+ .then(function() {
+ if (typeof args[1] === 'function') {
+ args[1].apply(null);
}
- } else {
- // 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;
- }
+ });
}
- return canSendMaxMessageSize;
+ return nativeMethod.apply(this, arguments);
};
+ });
- var getMaxMessageSize = function(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;
- }
+ return RTCPeerConnection;
+};
- var match = SDPUtils.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;
- };
+},{"sdp":17}],17:[function(require,module,exports){
+ /* eslint-env node */
+'use strict';
- var origSetRemoteDescription =
- window.RTCPeerConnection.prototype.setRemoteDescription;
- window.RTCPeerConnection.prototype.setRemoteDescription = function() {
- var pc = this;
- pc._sctp = null;
+// SDP helpers.
+var SDPUtils = {};
- if (sctpInDescription(arguments[0])) {
- // Check if the remote is FF.
- var isFirefox = getRemoteFirefoxVersion(arguments[0]);
+// 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);
+};
- // Get the maximum message size the local peer is capable of sending
- var canSendMMS = getCanSendMaxMessageSize(isFirefox);
+// The RTCP CNAME used by all peerconnections from the same JS.
+SDPUtils.localCName = SDPUtils.generateIdentifier();
- // Get the maximum message size of the remote peer.
- var remoteMMS = getMaxMessageSize(arguments[0], isFirefox);
+// 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';
+ });
+};
- // Determine final maximum message size
- var maxMessageSize;
- 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);
- }
+// returns the session description.
+SDPUtils.getDescription = function(blob) {
+ var sections = SDPUtils.splitSections(blob);
+ return sections && sections[0];
+};
- // Create a dummy RTCSctpTransport object and the 'maxMessageSize'
- // attribute.
- var sctp = {};
- Object.defineProperty(sctp, 'maxMessageSize', {
- get: function() {
- return maxMessageSize;
- }
- });
- pc._sctp = sctp;
- }
+// returns the individual media sections.
+SDPUtils.getMediaSections = function(blob) {
+ var sections = SDPUtils.splitSections(blob);
+ sections.shift();
+ return sections;
+};
- return origSetRemoteDescription.apply(pc, arguments);
- };
- },
+// 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;
+ });
+};
- shimSendThrowTypeError: function(window) {
- // 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
+// Parses an ICE candidate line. Sample input:
+// candidate:702786350 2 udp 41819902 8.8.8.8 60769 typ relay raddr 8.8.8.8
+// rport 55996"
+SDPUtils.parseCandidate = function(line) {
+ var parts;
+ // Parse both variants.
+ if (line.indexOf('a=candidate:') === 0) {
+ parts = line.substring(12).split(' ');
+ } else {
+ parts = line.substring(10).split(' ');
+ }
- var origCreateDataChannel =
- window.RTCPeerConnection.prototype.createDataChannel;
- window.RTCPeerConnection.prototype.createDataChannel = function() {
- var pc = this;
- var dataChannel = origCreateDataChannel.apply(pc, arguments);
- var origDataChannelSend = dataChannel.send;
-
- // Patch 'send' method
- dataChannel.send = function() {
- var dc = this;
- var data = arguments[0];
- var length = data.length || data.size || data.byteLength;
- if (length > pc.sctp.maxMessageSize) {
- throw new DOMException('Message too large (can send a maximum of ' +
- pc.sctp.maxMessageSize + ' bytes)', 'TypeError');
- }
- return origDataChannelSend.apply(dc, arguments);
- };
+ var candidate = {
+ foundation: parts[0],
+ component: parseInt(parts[1], 10),
+ protocol: parts[2].toLowerCase(),
+ priority: parseInt(parts[3], 10),
+ ip: parts[4],
+ address: parts[4], // address is an alias for ip.
+ port: parseInt(parts[5], 10),
+ // skip parts[6] == 'typ'
+ type: parts[7]
+ };
- return dataChannel;
- };
+ for (var i = 8; i < parts.length; i += 2) {
+ switch (parts[i]) {
+ case 'raddr':
+ candidate.relatedAddress = parts[i + 1];
+ break;
+ case 'rport':
+ candidate.relatedPort = parseInt(parts[i + 1], 10);
+ break;
+ case 'tcptype':
+ candidate.tcpType = parts[i + 1];
+ break;
+ case 'ufrag':
+ candidate.ufrag = parts[i + 1]; // for backward compability.
+ candidate.usernameFragment = parts[i + 1];
+ break;
+ default: // extension handling, in particular ufrag
+ candidate[parts[i]] = parts[i + 1];
+ break;
+ }
}
+ return candidate;
};
-},{"./utils":13,"sdp":2}],8:[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';
+// Translates a candidate object into SDP candidate attribute.
+SDPUtils.writeCandidate = function(candidate) {
+ var sdp = [];
+ sdp.push(candidate.foundation);
+ sdp.push(candidate.component);
+ sdp.push(candidate.protocol.toUpperCase());
+ sdp.push(candidate.priority);
+ sdp.push(candidate.address || candidate.ip);
+ sdp.push(candidate.port);
+
+ var type = candidate.type;
+ sdp.push('typ');
+ sdp.push(type);
+ if (type !== 'host' && candidate.relatedAddress &&
+ candidate.relatedPort) {
+ sdp.push('raddr');
+ sdp.push(candidate.relatedAddress);
+ sdp.push('rport');
+ sdp.push(candidate.relatedPort);
+ }
+ if (candidate.tcpType && candidate.protocol.toLowerCase() === 'tcp') {
+ sdp.push('tcptype');
+ sdp.push(candidate.tcpType);
+ }
+ if (candidate.usernameFragment || candidate.ufrag) {
+ sdp.push('ufrag');
+ sdp.push(candidate.usernameFragment || candidate.ufrag);
+ }
+ return 'candidate:' + sdp.join(' ');
+};
+
+// Parses an ice-options line, returns an array of option tags.
+// a=ice-options:foo bar
+SDPUtils.parseIceOptions = function(line) {
+ return line.substr(14).split(' ');
+};
+
+// Parses an rtpmap line, returns RTCRtpCoddecParameters. Sample input:
+// a=rtpmap:111 opus/48000/2
+SDPUtils.parseRtpMap = function(line) {
+ var parts = line.substr(9).split(' ');
+ var parsed = {
+ payloadType: parseInt(parts.shift(), 10) // was: id
+ };
+
+ parts = parts[0].split('/');
+
+ parsed.name = parts[0];
+ parsed.clockRate = parseInt(parts[1], 10); // was: clockrate
+ parsed.channels = parts.length === 3 ? parseInt(parts[2], 10) : 1;
+ // legacy alias, got renamed back to channels in ORTC.
+ parsed.numChannels = parsed.channels;
+ return parsed;
+};
+
+// Generate an a=rtpmap line from RTCRtpCodecCapability or
+// RTCRtpCodecParameters.
+SDPUtils.writeRtpMap = function(codec) {
+ var pt = codec.payloadType;
+ if (codec.preferredPayloadType !== undefined) {
+ pt = codec.preferredPayloadType;
+ }
+ var channels = codec.channels || codec.numChannels || 1;
+ return 'a=rtpmap:' + pt + ' ' + codec.name + '/' + codec.clockRate +
+ (channels !== 1 ? '/' + channels : '') + '\r\n';
+};
+
+// Parses an a=extmap line (headerextension from RFC 5285). Sample input:
+// a=extmap:2 urn:ietf:params:rtp-hdrext:toffset
+// a=extmap:2/sendonly urn:ietf:params:rtp-hdrext:toffset
+SDPUtils.parseExtmap = function(line) {
+ var parts = line.substr(9).split(' ');
+ return {
+ id: parseInt(parts[0], 10),
+ direction: parts[0].indexOf('/') > 0 ? parts[0].split('/')[1] : 'sendrecv',
+ uri: parts[1]
+ };
+};
-var utils = require('../utils');
-var shimRTCPeerConnection = require('rtcpeerconnection-shim');
+// Generates a=extmap line from RTCRtpHeaderExtensionParameters or
+// RTCRtpHeaderExtension.
+SDPUtils.writeExtmap = function(headerExtension) {
+ return 'a=extmap:' + (headerExtension.id || headerExtension.preferredId) +
+ (headerExtension.direction && headerExtension.direction !== 'sendrecv'
+ ? '/' + headerExtension.direction
+ : '') +
+ ' ' + headerExtension.uri + '\r\n';
+};
-module.exports = {
- shimGetUserMedia: require('./getusermedia'),
- shimPeerConnection: function(window) {
- var browserDetails = utils.detectBrowser(window);
+// Parses an ftmp line, returns dictionary. Sample input:
+// a=fmtp:96 vbr=on;cng=on
+// Also deals with vbr=on; cng=on
+SDPUtils.parseFmtp = function(line) {
+ var parsed = {};
+ var kv;
+ var parts = line.substr(line.indexOf(' ') + 1).split(';');
+ for (var j = 0; j < parts.length; j++) {
+ kv = parts[j].trim().split('=');
+ parsed[kv[0].trim()] = kv[1];
+ }
+ return parsed;
+};
- if (window.RTCIceGatherer) {
- // ORTC defines an RTCIceCandidate object but no constructor.
- // Not implemented in Edge.
- if (!window.RTCIceCandidate) {
- window.RTCIceCandidate = function(args) {
- return args;
- };
- }
- // ORTC does not have a session description object but
- // other browsers (i.e. Chrome) that will support both PC and ORTC
- // in the future might have this defined already.
- if (!window.RTCSessionDescription) {
- window.RTCSessionDescription = function(args) {
- return args;
- };
- }
- // this adds an additional event listener to MediaStrackTrack that signals
- // when a tracks enabled property was changed. Workaround for a bug in
- // addStream, see below. No longer required in 15025+
- if (browserDetails.version < 15025) {
- var origMSTEnabled = Object.getOwnPropertyDescriptor(
- window.MediaStreamTrack.prototype, 'enabled');
- Object.defineProperty(window.MediaStreamTrack.prototype, 'enabled', {
- set: function(value) {
- origMSTEnabled.set.call(this, value);
- var ev = new Event('enabled');
- ev.enabled = value;
- this.dispatchEvent(ev);
- }
- });
+// Generates an a=ftmp line from RTCRtpCodecCapability or RTCRtpCodecParameters.
+SDPUtils.writeFmtp = function(codec) {
+ var line = '';
+ var pt = codec.payloadType;
+ if (codec.preferredPayloadType !== undefined) {
+ pt = codec.preferredPayloadType;
+ }
+ if (codec.parameters && Object.keys(codec.parameters).length) {
+ var params = [];
+ Object.keys(codec.parameters).forEach(function(param) {
+ if (codec.parameters[param]) {
+ params.push(param + '=' + codec.parameters[param]);
+ } else {
+ params.push(param);
}
- }
+ });
+ line += 'a=fmtp:' + pt + ' ' + params.join(';') + '\r\n';
+ }
+ return line;
+};
- // ORTC defines the DTMF sender a bit different.
- // https://github.com/w3c/ortc/issues/714
- if (window.RTCRtpSender && !('dtmf' in window.RTCRtpSender.prototype)) {
- Object.defineProperty(window.RTCRtpSender.prototype, 'dtmf', {
- get: function() {
- if (this._dtmf === undefined) {
- if (this.track.kind === 'audio') {
- this._dtmf = new window.RTCDtmfSender(this);
- } else if (this.track.kind === 'video') {
- this._dtmf = null;
- }
- }
- return this._dtmf;
- }
- });
- }
+// Parses an rtcp-fb line, returns RTCPRtcpFeedback object. Sample input:
+// a=rtcp-fb:98 nack rpsi
+SDPUtils.parseRtcpFb = function(line) {
+ var parts = line.substr(line.indexOf(' ') + 1).split(' ');
+ return {
+ type: parts.shift(),
+ parameter: parts.join(' ')
+ };
+};
+// Generate a=rtcp-fb lines from RTCRtpCodecCapability or RTCRtpCodecParameters.
+SDPUtils.writeRtcpFb = function(codec) {
+ var lines = '';
+ var pt = codec.payloadType;
+ if (codec.preferredPayloadType !== undefined) {
+ pt = codec.preferredPayloadType;
+ }
+ if (codec.rtcpFeedback && codec.rtcpFeedback.length) {
+ // FIXME: special handling for trr-int?
+ codec.rtcpFeedback.forEach(function(fb) {
+ lines += 'a=rtcp-fb:' + pt + ' ' + fb.type +
+ (fb.parameter && fb.parameter.length ? ' ' + fb.parameter : '') +
+ '\r\n';
+ });
+ }
+ return lines;
+};
- window.RTCPeerConnection =
- shimRTCPeerConnection(window, browserDetails.version);
- },
- shimReplaceTrack: function(window) {
- // ORTC has replaceTrack -- https://github.com/w3c/ortc/issues/614
- if (window.RTCRtpSender &&
- !('replaceTrack' in window.RTCRtpSender.prototype)) {
- window.RTCRtpSender.prototype.replaceTrack =
- window.RTCRtpSender.prototype.setTrack;
- }
+// Parses an RFC 5576 ssrc media attribute. Sample input:
+// a=ssrc:3735928559 cname:something
+SDPUtils.parseSsrcMedia = function(line) {
+ var sp = line.indexOf(' ');
+ var parts = {
+ ssrc: parseInt(line.substr(7, sp - 7), 10)
+ };
+ var colon = line.indexOf(':', sp);
+ if (colon > -1) {
+ parts.attribute = line.substr(sp + 1, colon - sp - 1);
+ parts.value = line.substr(colon + 1);
+ } else {
+ parts.attribute = line.substr(sp + 1);
}
+ return parts;
};
-},{"../utils":13,"./getusermedia":9,"rtcpeerconnection-shim":1}],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';
+SDPUtils.parseSsrcGroup = function(line) {
+ var parts = line.substr(13).split(' ');
+ return {
+ semantics: parts.shift(),
+ ssrcs: parts.map(function(ssrc) {
+ return parseInt(ssrc, 10);
+ })
+ };
+};
-// Expose public methods.
-module.exports = function(window) {
- var navigator = window && window.navigator;
+// 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);
+ }
+};
- var shimError_ = function(e) {
- return {
- name: {PermissionDeniedError: 'NotAllowedError'}[e.name] || e.name,
- message: e.message,
- constraint: e.constraint,
- toString: function() {
- return this.name;
- }
- };
+SDPUtils.parseFingerprint = function(line) {
+ var parts = line.substr(14).split(' ');
+ return {
+ algorithm: parts[0].toLowerCase(), // algorithm is case-sensitive in Edge.
+ value: parts[1]
};
+};
- // getUserMedia error shim.
- var origGetUserMedia = navigator.mediaDevices.getUserMedia.
- bind(navigator.mediaDevices);
- navigator.mediaDevices.getUserMedia = function(c) {
- return origGetUserMedia(c).catch(function(e) {
- return Promise.reject(shimError_(e));
- });
+// Extracts DTLS parameters from SDP media section or sessionpart.
+// FIXME: for consistency with other functions this should only
+// get the fingerprint line as input. See also getIceParameters.
+SDPUtils.getDtlsParameters = function(mediaSection, sessionpart) {
+ var lines = SDPUtils.matchPrefix(mediaSection + sessionpart,
+ 'a=fingerprint:');
+ // Note: a=setup line is ignored since we use the 'auto' role.
+ // Note2: 'algorithm' is not case sensitive except in Edge.
+ return {
+ role: 'auto',
+ fingerprints: lines.map(SDPUtils.parseFingerprint)
};
};
-},{}],10:[function(require,module,exports){
-/*
- * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
- *
- * Use of this source code is governed by a BSD-style license
- * that can be found in the LICENSE file in the root of the source
- * tree.
- */
- /* eslint-env node */
-'use strict';
+// 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 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 lines = SDPUtils.splitLines(mediaSection);
+ // Search in session part, too.
+ lines = lines.concat(SDPUtils.splitLines(sessionpart));
+ var iceParameters = {
+ usernameFragment: lines.filter(function(line) {
+ return line.indexOf('a=ice-ufrag:') === 0;
+ })[0].substr(12),
+ password: lines.filter(function(line) {
+ return line.indexOf('a=ice-pwd:') === 0;
+ })[0].substr(10)
+ };
+ return iceParameters;
+};
-var utils = require('../utils');
+// Serializes ICE parameters to SDP.
+SDPUtils.writeIceParameters = function(params) {
+ return 'a=ice-ufrag:' + params.usernameFragment + '\r\n' +
+ 'a=ice-pwd:' + params.password + '\r\n';
+};
-module.exports = {
- shimGetUserMedia: require('./getusermedia'),
- shimOnTrack: function(window) {
- if (typeof window === 'object' && window.RTCPeerConnection && !('ontrack' in
- window.RTCPeerConnection.prototype)) {
- Object.defineProperty(window.RTCPeerConnection.prototype, 'ontrack', {
- get: function() {
- return this._ontrack;
- },
- set: function(f) {
- if (this._ontrack) {
- this.removeEventListener('track', this._ontrack);
- this.removeEventListener('addstream', this._ontrackpoly);
- }
- this.addEventListener('track', this._ontrack = f);
- this.addEventListener('addstream', this._ontrackpoly = function(e) {
- e.stream.getTracks().forEach(function(track) {
- var event = new Event('track');
- event.track = track;
- event.receiver = {track: track};
- event.transceiver = {receiver: event.receiver};
- event.streams = [e.stream];
- this.dispatchEvent(event);
- }.bind(this));
- }.bind(this));
- }
- });
- }
- if (typeof window === 'object' && window.RTCTrackEvent &&
- ('receiver' in window.RTCTrackEvent.prototype) &&
- !('transceiver' in window.RTCTrackEvent.prototype)) {
- Object.defineProperty(window.RTCTrackEvent.prototype, 'transceiver', {
- get: function() {
- return {receiver: this.receiver};
- }
- });
- }
- },
-
- shimSourceObject: function(window) {
- // Firefox has supported mozSrcObject since FF22, unprefixed in 42.
- if (typeof window === 'object') {
- if (window.HTMLMediaElement &&
- !('srcObject' in window.HTMLMediaElement.prototype)) {
- // Shim the srcObject property, once, when HTMLMediaElement is found.
- Object.defineProperty(window.HTMLMediaElement.prototype, 'srcObject', {
- get: function() {
- return this.mozSrcObject;
- },
- set: function(stream) {
- this.mozSrcObject = stream;
- }
- });
- }
- }
- },
-
- shimPeerConnection: function(window) {
- var browserDetails = utils.detectBrowser(window);
-
- if (typeof window !== 'object' || !(window.RTCPeerConnection ||
- window.mozRTCPeerConnection)) {
- return; // probably media.peerconnection.enabled=false in about:config
- }
- // The RTCPeerConnection object.
- if (!window.RTCPeerConnection) {
- window.RTCPeerConnection = function(pcConfig, pcConstraints) {
- if (browserDetails.version < 38) {
- // .urls is not supported in FF < 38.
- // create RTCIceServers with a single url.
- if (pcConfig && pcConfig.iceServers) {
- var newIceServers = [];
- for (var i = 0; i < pcConfig.iceServers.length; i++) {
- var server = pcConfig.iceServers[i];
- if (server.hasOwnProperty('urls')) {
- for (var j = 0; j < server.urls.length; j++) {
- var newServer = {
- url: server.urls[j]
- };
- if (server.urls[j].indexOf('turn') === 0) {
- newServer.username = server.username;
- newServer.credential = server.credential;
- }
- newIceServers.push(newServer);
- }
- } else {
- newIceServers.push(pcConfig.iceServers[i]);
- }
- }
- pcConfig.iceServers = newIceServers;
- }
- }
- return new window.mozRTCPeerConnection(pcConfig, pcConstraints);
- };
- window.RTCPeerConnection.prototype =
- window.mozRTCPeerConnection.prototype;
-
- // wrap static methods. Currently just generateCertificate.
- if (window.mozRTCPeerConnection.generateCertificate) {
- Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
- get: function() {
- return window.mozRTCPeerConnection.generateCertificate;
- }
- });
+// 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;
}
-
- window.RTCSessionDescription = window.mozRTCSessionDescription;
- window.RTCIceCandidate = window.mozRTCIceCandidate;
}
+ }
+ SDPUtils.matchPrefix(mediaSection, 'a=extmap:').forEach(function(line) {
+ description.headerExtensions.push(SDPUtils.parseExtmap(line));
+ });
+ // FIXME: parse rtcp.
+ return description;
+};
- // shim away need for obsolete RTCIceCandidate/RTCSessionDescription.
- ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate']
- .forEach(function(method) {
- var nativeMethod = window.RTCPeerConnection.prototype[method];
- window.RTCPeerConnection.prototype[method] = function() {
- arguments[0] = new ((method === 'addIceCandidate') ?
- window.RTCIceCandidate :
- window.RTCSessionDescription)(arguments[0]);
- return nativeMethod.apply(this, arguments);
- };
- });
-
- // support for addIceCandidate(null or undefined)
- var nativeAddIceCandidate =
- window.RTCPeerConnection.prototype.addIceCandidate;
- window.RTCPeerConnection.prototype.addIceCandidate = function() {
- if (!arguments[0]) {
- if (arguments[1]) {
- arguments[1].apply(null);
- }
- return Promise.resolve();
- }
- return nativeAddIceCandidate.apply(this, arguments);
- };
-
- // shim getStats with maplike support
- var makeMapStats = function(stats) {
- var map = new Map();
- Object.keys(stats).forEach(function(key) {
- map.set(key, stats[key]);
- map[key] = stats[key];
- });
- return map;
- };
-
- var modernStatsTypes = {
- inboundrtp: 'inbound-rtp',
- outboundrtp: 'outbound-rtp',
- candidatepair: 'candidate-pair',
- localcandidate: 'local-candidate',
- remotecandidate: 'remote-candidate'
- };
+// Generates parts of the SDP media section describing the capabilities /
+// parameters.
+SDPUtils.writeRtpDescription = function(kind, caps) {
+ var sdp = '';
- var nativeGetStats = window.RTCPeerConnection.prototype.getStats;
- window.RTCPeerConnection.prototype.getStats = function(
- selector,
- onSucc,
- onErr
- ) {
- return nativeGetStats.apply(this, [selector || null])
- .then(function(stats) {
- if (browserDetails.version < 48) {
- stats = makeMapStats(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);
- };
- },
+ // Build the mline.
+ sdp += 'm=' + kind + ' ';
+ sdp += caps.codecs.length > 0 ? '9' : '0'; // reject if no codecs.
+ sdp += ' UDP/TLS/RTP/SAVPF ';
+ sdp += caps.codecs.map(function(codec) {
+ if (codec.preferredPayloadType !== undefined) {
+ return codec.preferredPayloadType;
+ }
+ return codec.payloadType;
+ }).join(' ') + '\r\n';
- shimRemoveStream: function(window) {
- if (!window.RTCPeerConnection ||
- 'removeStream' in window.RTCPeerConnection.prototype) {
- return;
+ sdp += 'c=IN IP4 0.0.0.0\r\n';
+ sdp += 'a=rtcp:9 IN IP4 0.0.0.0\r\n';
+
+ // Add a=rtpmap lines for each codec. Also fmtp and rtcp-fb.
+ caps.codecs.forEach(function(codec) {
+ sdp += SDPUtils.writeRtpMap(codec);
+ sdp += SDPUtils.writeFmtp(codec);
+ sdp += SDPUtils.writeRtcpFb(codec);
+ });
+ var maxptime = 0;
+ caps.codecs.forEach(function(codec) {
+ if (codec.maxptime > maxptime) {
+ maxptime = codec.maxptime;
}
- window.RTCPeerConnection.prototype.removeStream = function(stream) {
- var pc = this;
- utils.deprecated('removeStream', 'removeTrack');
- this.getSenders().forEach(function(sender) {
- if (sender.track && stream.getTracks().indexOf(sender.track) !== -1) {
- pc.removeTrack(sender);
- }
- });
- };
+ });
+ if (maxptime > 0) {
+ sdp += 'a=maxptime:' + maxptime + '\r\n';
}
-};
+ sdp += 'a=rtcp-mux\r\n';
-},{"../utils":13,"./getusermedia":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';
+ if (caps.headerExtensions) {
+ caps.headerExtensions.forEach(function(extension) {
+ sdp += SDPUtils.writeExtmap(extension);
+ });
+ }
+ // FIXME: write fecMechanisms.
+ return sdp;
+};
-var utils = require('../utils');
-var logging = utils.log;
+// Parses the SDP media section and returns an array of
+// RTCRtpEncodingParameters.
+SDPUtils.parseRtpEncodingParameters = function(mediaSection) {
+ var encodingParameters = [];
+ var description = SDPUtils.parseRtpParameters(mediaSection);
+ var hasRed = description.fecMechanisms.indexOf('RED') !== -1;
+ var hasUlpfec = description.fecMechanisms.indexOf('ULPFEC') !== -1;
-// Expose public methods.
-module.exports = function(window) {
- var browserDetails = utils.detectBrowser(window);
- var navigator = window && window.navigator;
- var MediaStreamTrack = window && window.MediaStreamTrack;
+ // filter a=ssrc:... cname:, ignore PlanB-msid
+ var ssrcs = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
+ .map(function(line) {
+ return SDPUtils.parseSsrcMedia(line);
+ })
+ .filter(function(parts) {
+ return parts.attribute === 'cname';
+ });
+ var primarySsrc = ssrcs.length > 0 && ssrcs[0].ssrc;
+ var secondarySsrc;
- var shimError_ = function(e) {
- return {
- name: {
- InternalError: 'NotReadableError',
- NotSupportedError: 'TypeError',
- PermissionDeniedError: 'NotAllowedError',
- SecurityError: 'NotAllowedError'
- }[e.name] || e.name,
- message: {
- 'The operation is insecure.': 'The request is not allowed by the ' +
- 'user agent or the platform in the current context.'
- }[e.message] || e.message,
- constraint: e.constraint,
- toString: function() {
- return this.name + (this.message && ': ') + this.message;
- }
- };
- };
+ var flows = SDPUtils.matchPrefix(mediaSection, 'a=ssrc-group:FID')
+ .map(function(line) {
+ var parts = line.substr(17).split(' ');
+ return parts.map(function(part) {
+ return parseInt(part, 10);
+ });
+ });
+ if (flows.length > 0 && flows[0].length > 1 && flows[0][0] === primarySsrc) {
+ secondarySsrc = flows[0][1];
+ }
- // getUserMedia constraints shim.
- var getUserMedia_ = function(constraints, onSuccess, onError) {
- var constraintsToFF37_ = function(c) {
- if (typeof c !== 'object' || c.require) {
- return c;
- }
- var require = [];
- Object.keys(c).forEach(function(key) {
- if (key === 'require' || key === 'advanced' || key === 'mediaSource') {
- return;
- }
- var r = c[key] = (typeof c[key] === 'object') ?
- c[key] : {ideal: c[key]};
- if (r.min !== undefined ||
- r.max !== undefined || r.exact !== undefined) {
- require.push(key);
- }
- if (r.exact !== undefined) {
- if (typeof r.exact === 'number') {
- r. min = r.max = r.exact;
- } else {
- c[key] = r.exact;
- }
- delete r.exact;
- }
- if (r.ideal !== undefined) {
- c.advanced = c.advanced || [];
- var oc = {};
- if (typeof r.ideal === 'number') {
- oc[key] = {min: r.ideal, max: r.ideal};
- } else {
- oc[key] = r.ideal;
- }
- c.advanced.push(oc);
- delete r.ideal;
- if (!Object.keys(r).length) {
- delete c[key];
- }
- }
- });
- if (require.length) {
- c.require = require;
- }
- return c;
- };
- constraints = JSON.parse(JSON.stringify(constraints));
- if (browserDetails.version < 38) {
- logging('spec: ' + JSON.stringify(constraints));
- if (constraints.audio) {
- constraints.audio = constraintsToFF37_(constraints.audio);
+ 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};
}
- if (constraints.video) {
- constraints.video = constraintsToFF37_(constraints.video);
+ encodingParameters.push(encParam);
+ if (hasRed) {
+ encParam = JSON.parse(JSON.stringify(encParam));
+ encParam.fec = {
+ ssrc: primarySsrc,
+ mechanism: hasUlpfec ? 'red+ulpfec' : 'red'
+ };
+ encodingParameters.push(encParam);
}
- logging('ff37: ' + JSON.stringify(constraints));
}
- return navigator.mozGetUserMedia(constraints, onSuccess, function(e) {
- onError(shimError_(e));
+ });
+ if (encodingParameters.length === 0 && primarySsrc) {
+ encodingParameters.push({
+ ssrc: primarySsrc
});
- };
+ }
- // Returns the result of getUserMedia as a Promise.
- var getUserMediaPromise_ = function(constraints) {
- return new Promise(function(resolve, reject) {
- getUserMedia_(constraints, resolve, reject);
+ // 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;
+};
- // Shim for mediaDevices on older versions.
- if (!navigator.mediaDevices) {
- navigator.mediaDevices = {getUserMedia: getUserMediaPromise_,
- addEventListener: function() { },
- removeEventListener: function() { }
- };
+// parses http://draft.ortc.org/#rtcrtcpparameters*
+SDPUtils.parseRtcpParameters = function(mediaSection) {
+ var rtcpParameters = {};
+
+ // Gets the first SSRC. Note tha with RTX there might be multiple
+ // SSRCs.
+ var remoteSsrc = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
+ .map(function(line) {
+ return SDPUtils.parseSsrcMedia(line);
+ })
+ .filter(function(obj) {
+ return obj.attribute === 'cname';
+ })[0];
+ if (remoteSsrc) {
+ rtcpParameters.cname = remoteSsrc.value;
+ rtcpParameters.ssrc = remoteSsrc.ssrc;
}
- navigator.mediaDevices.enumerateDevices =
- navigator.mediaDevices.enumerateDevices || function() {
- return new Promise(function(resolve) {
- var infos = [
- {kind: 'audioinput', deviceId: 'default', label: '', groupId: ''},
- {kind: 'videoinput', deviceId: 'default', label: '', groupId: ''}
- ];
- resolve(infos);
- });
- };
- if (browserDetails.version < 41) {
- // Work around http://bugzil.la/1169665
- var orgEnumerateDevices =
- navigator.mediaDevices.enumerateDevices.bind(navigator.mediaDevices);
- navigator.mediaDevices.enumerateDevices = function() {
- return orgEnumerateDevices().then(undefined, function(e) {
- if (e.name === 'NotFoundError') {
- return [];
- }
- throw e;
- });
- };
+ // 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;
+};
+
+// parses either a=msid: or a=ssrc:... msid lines and returns
+// the id of the MediaStream and MediaStreamTrack.
+SDPUtils.parseMsid = function(mediaSection) {
+ var parts;
+ var spec = SDPUtils.matchPrefix(mediaSection, 'a=msid:');
+ if (spec.length === 1) {
+ parts = spec[0].substr(7).split(' ');
+ return {stream: parts[0], track: parts[1]};
}
- if (browserDetails.version < 49) {
- var origGetUserMedia = navigator.mediaDevices.getUserMedia.
- bind(navigator.mediaDevices);
- navigator.mediaDevices.getUserMedia = function(c) {
- return origGetUserMedia(c).then(function(stream) {
- // Work around https://bugzil.la/802326
- if (c.audio && !stream.getAudioTracks().length ||
- c.video && !stream.getVideoTracks().length) {
- stream.getTracks().forEach(function(track) {
- track.stop();
- });
- throw new DOMException('The object can not be found here.',
- 'NotFoundError');
- }
- return stream;
- }, function(e) {
- return Promise.reject(shimError_(e));
- });
- };
+ 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]};
}
- if (!(browserDetails.version > 55 &&
- 'autoGainControl' in navigator.mediaDevices.getSupportedConstraints())) {
- var remap = function(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 === '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;
- };
- }
+// 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);
+};
- if (MediaStreamTrack && MediaStreamTrack.prototype.applyConstraints) {
- var nativeApplyConstraints = MediaStreamTrack.prototype.applyConstraints;
- MediaStreamTrack.prototype.applyConstraints = function(c) {
- if (this.kind === 'audio' && typeof c === 'object') {
- c = JSON.parse(JSON.stringify(c));
- remap(c, 'autoGainControl', 'mozAutoGainControl');
- remap(c, 'noiseSuppression', 'mozNoiseSuppression');
- }
- return nativeApplyConstraints.apply(this, [c]);
- };
- }
+// Write boilder plate for start of SDP
+// sessId argument is optional - if not supplied it will
+// be generated randomly
+// sessVersion is optional and defaults to 2
+// sessUser is optional and defaults to 'thisisadapterortc'
+SDPUtils.writeSessionBoilerplate = function(sessId, sessVer, sessUser) {
+ var sessionId;
+ var version = sessVer !== undefined ? sessVer : 2;
+ if (sessId) {
+ sessionId = sessId;
+ } else {
+ sessionId = SDPUtils.generateSessionId();
}
- navigator.getUserMedia = function(constraints, onSuccess, onError) {
- if (browserDetails.version < 44) {
- return getUserMedia_(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);
- };
+ 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';
};
-},{"../utils":13}],12:[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';
-var utils = require('../utils');
+SDPUtils.writeMediaSection = function(transceiver, caps, type, stream) {
+ var sdp = SDPUtils.writeRtpDescription(transceiver.kind, caps);
-module.exports = {
- shimLocalStreamsAPI: function(window) {
- if (typeof window !== 'object' || !window.RTCPeerConnection) {
- return;
- }
- if (!('getLocalStreams' in window.RTCPeerConnection.prototype)) {
- window.RTCPeerConnection.prototype.getLocalStreams = function() {
- if (!this._localStreams) {
- this._localStreams = [];
- }
- return this._localStreams;
- };
- }
- if (!('getStreamById' in window.RTCPeerConnection.prototype)) {
- window.RTCPeerConnection.prototype.getStreamById = function(id) {
- var result = null;
- if (this._localStreams) {
- this._localStreams.forEach(function(stream) {
- if (stream.id === id) {
- result = stream;
- }
- });
- }
- if (this._remoteStreams) {
- this._remoteStreams.forEach(function(stream) {
- if (stream.id === id) {
- result = stream;
- }
- });
- }
- return result;
- };
- }
- if (!('addStream' in window.RTCPeerConnection.prototype)) {
- var _addTrack = window.RTCPeerConnection.prototype.addTrack;
- window.RTCPeerConnection.prototype.addStream = function(stream) {
- if (!this._localStreams) {
- this._localStreams = [];
- }
- if (this._localStreams.indexOf(stream) === -1) {
- this._localStreams.push(stream);
- }
- var pc = this;
- stream.getTracks().forEach(function(track) {
- _addTrack.call(pc, track, stream);
- });
- };
+ // Map ICE parameters (ufrag, pwd) to SDP.
+ sdp += SDPUtils.writeIceParameters(
+ transceiver.iceGatherer.getLocalParameters());
- window.RTCPeerConnection.prototype.addTrack = function(track, stream) {
- if (stream) {
- if (!this._localStreams) {
- this._localStreams = [stream];
- } else if (this._localStreams.indexOf(stream) === -1) {
- this._localStreams.push(stream);
- }
- }
- return _addTrack.call(this, track, stream);
- };
- }
- if (!('removeStream' in window.RTCPeerConnection.prototype)) {
- window.RTCPeerConnection.prototype.removeStream = function(stream) {
- if (!this._localStreams) {
- this._localStreams = [];
- }
- var index = this._localStreams.indexOf(stream);
- if (index === -1) {
- return;
- }
- this._localStreams.splice(index, 1);
- var pc = this;
- var tracks = stream.getTracks();
- this.getSenders().forEach(function(sender) {
- if (tracks.indexOf(sender.track) !== -1) {
- pc.removeTrack(sender);
- }
- });
- };
- }
- },
- shimRemoteStreamsAPI: function(window) {
- if (typeof window !== 'object' || !window.RTCPeerConnection) {
- return;
- }
- if (!('getRemoteStreams' in window.RTCPeerConnection.prototype)) {
- window.RTCPeerConnection.prototype.getRemoteStreams = function() {
- return this._remoteStreams ? this._remoteStreams : [];
- };
- }
- if (!('onaddstream' in window.RTCPeerConnection.prototype)) {
- Object.defineProperty(window.RTCPeerConnection.prototype, 'onaddstream', {
- get: function() {
- return this._onaddstream;
- },
- set: function(f) {
- var pc = 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 (!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);
- });
- });
- }
- });
- }
- },
- shimCallbacksAPI: function(window) {
- if (typeof window !== 'object' || !window.RTCPeerConnection) {
- return;
- }
- var prototype = window.RTCPeerConnection.prototype;
- var createOffer = prototype.createOffer;
- var createAnswer = prototype.createAnswer;
- var setLocalDescription = prototype.setLocalDescription;
- var setRemoteDescription = prototype.setRemoteDescription;
- var addIceCandidate = prototype.addIceCandidate;
-
- prototype.createOffer = function(successCallback, failureCallback) {
- var options = (arguments.length >= 2) ? arguments[2] : arguments[0];
- var promise = createOffer.apply(this, [options]);
- if (!failureCallback) {
- return promise;
- }
- promise.then(successCallback, failureCallback);
- return Promise.resolve();
- };
+ // Map DTLS parameters to SDP.
+ sdp += SDPUtils.writeDtlsParameters(
+ transceiver.dtlsTransport.getLocalParameters(),
+ type === 'offer' ? 'actpass' : 'active');
- prototype.createAnswer = function(successCallback, failureCallback) {
- var options = (arguments.length >= 2) ? arguments[2] : arguments[0];
- var promise = createAnswer.apply(this, [options]);
- if (!failureCallback) {
- return promise;
- }
- promise.then(successCallback, failureCallback);
- return Promise.resolve();
- };
+ sdp += 'a=mid:' + transceiver.mid + '\r\n';
- var withCallback = function(description, successCallback, failureCallback) {
- var promise = setLocalDescription.apply(this, [description]);
- if (!failureCallback) {
- return promise;
- }
- promise.then(successCallback, failureCallback);
- return Promise.resolve();
- };
- prototype.setLocalDescription = withCallback;
+ if (transceiver.direction) {
+ sdp += 'a=' + transceiver.direction + '\r\n';
+ } else if (transceiver.rtpSender && transceiver.rtpReceiver) {
+ sdp += 'a=sendrecv\r\n';
+ } else if (transceiver.rtpSender) {
+ sdp += 'a=sendonly\r\n';
+ } else if (transceiver.rtpReceiver) {
+ sdp += 'a=recvonly\r\n';
+ } else {
+ sdp += 'a=inactive\r\n';
+ }
- withCallback = function(description, successCallback, failureCallback) {
- var promise = setRemoteDescription.apply(this, [description]);
- if (!failureCallback) {
- return promise;
- }
- promise.then(successCallback, failureCallback);
- return Promise.resolve();
- };
- prototype.setRemoteDescription = withCallback;
+ if (transceiver.rtpSender) {
+ // spec.
+ var msid = 'msid:' + stream.id + ' ' +
+ transceiver.rtpSender.track.id + '\r\n';
+ sdp += 'a=' + msid;
- withCallback = function(candidate, successCallback, failureCallback) {
- var promise = addIceCandidate.apply(this, [candidate]);
- if (!failureCallback) {
- return promise;
- }
- promise.then(successCallback, failureCallback);
- return Promise.resolve();
- };
- prototype.addIceCandidate = withCallback;
- },
- shimGetUserMedia: function(window) {
- var navigator = window && window.navigator;
-
- if (!navigator.getUserMedia) {
- if (navigator.webkitGetUserMedia) {
- navigator.getUserMedia = navigator.webkitGetUserMedia.bind(navigator);
- } else if (navigator.mediaDevices &&
- navigator.mediaDevices.getUserMedia) {
- navigator.getUserMedia = function(constraints, cb, errcb) {
- navigator.mediaDevices.getUserMedia(constraints)
- .then(cb, errcb);
- }.bind(navigator);
- }
- }
- },
- shimRTCIceServerUrls: function(window) {
- // migrate from non-spec RTCIceServer.url to RTCIceServer.urls
- var OrigPeerConnection = window.RTCPeerConnection;
- window.RTCPeerConnection = function(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 window.RTCPeerConnection) {
- Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
- get: function() {
- return OrigPeerConnection.generateCertificate;
- }
- });
- }
- },
- shimTrackEventTransceiver: function(window) {
- // Add event.transceiver member over deprecated event.receiver
- if (typeof window === 'object' && window.RTCPeerConnection &&
- ('receiver' in window.RTCTrackEvent.prototype) &&
- // can't check 'transceiver' in window.RTCTrackEvent.prototype, as it is
- // defined for some reason even when window.RTCTransceiver is not.
- !window.RTCTransceiver) {
- Object.defineProperty(window.RTCTrackEvent.prototype, 'transceiver', {
- get: function() {
- return {receiver: this.receiver};
- }
- });
+ // for Chrome.
+ sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
+ ' ' + msid;
+ if (transceiver.sendEncodingParameters[0].rtx) {
+ sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
+ ' ' + msid;
+ sdp += 'a=ssrc-group:FID ' +
+ transceiver.sendEncodingParameters[0].ssrc + ' ' +
+ transceiver.sendEncodingParameters[0].rtx.ssrc +
+ '\r\n';
}
- },
-
- shimCreateOfferLegacy: function(window) {
- var origCreateOffer = window.RTCPeerConnection.prototype.createOffer;
- window.RTCPeerConnection.prototype.createOffer = function(offerOptions) {
- var pc = this;
- if (offerOptions) {
- var audioTransceiver = pc.getTransceivers().find(function(transceiver) {
- return transceiver.sender.track &&
- transceiver.sender.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) {
- pc.addTransceiver('audio');
- }
-
- var videoTransceiver = pc.getTransceivers().find(function(transceiver) {
- return transceiver.sender.track &&
- transceiver.sender.track.kind === 'video';
- });
- if (offerOptions.offerToReceiveVideo === false && videoTransceiver) {
- if (videoTransceiver.direction === 'sendrecv') {
- videoTransceiver.setDirection('sendonly');
- } else if (videoTransceiver.direction === 'recvonly') {
- videoTransceiver.setDirection('inactive');
- }
- } else if (offerOptions.offerToReceiveVideo === true &&
- !videoTransceiver) {
- pc.addTransceiver('video');
- }
- }
- return origCreateOffer.apply(pc, arguments);
- };
}
+ // FIXME: this should be written by writeRtpDescription.
+ sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
+ ' cname:' + SDPUtils.localCName + '\r\n';
+ if (transceiver.rtpSender && transceiver.sendEncodingParameters[0].rtx) {
+ sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
+ ' cname:' + SDPUtils.localCName + '\r\n';
+ }
+ return sdp;
};
-},{"../utils":13}],13:[function(require,module,exports){
-/*
- * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
- *
- * Use of this source code is governed by a BSD-style license
- * that can be found in the LICENSE file in the root of the source
- * tree.
- */
- /* eslint-env node */
-'use strict';
+// 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';
+};
-var logDisabled_ = true;
-var deprecationWarnings_ = true;
+SDPUtils.getKind = function(mediaSection) {
+ var lines = SDPUtils.splitLines(mediaSection);
+ var mline = lines[0].split(' ');
+ return mline[0].substr(2);
+};
-/**
- * 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);
-}
+SDPUtils.isRejected = function(mediaSection) {
+ return mediaSection.split(' ', 2)[1] === '0';
+};
-// Wraps the peerconnection event eventNameToWrap in a function
-// which returns the modified event object.
-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(e) {
- cb(wrapper(e));
- };
- this._eventMap = this._eventMap || {};
- this._eventMap[cb] = wrappedCallback;
- return nativeAddEventListener.apply(this, [nativeEventName,
- wrappedCallback]);
+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(' ')
};
+};
- var nativeRemoveEventListener = proto.removeEventListener;
- proto.removeEventListener = function(nativeEventName, cb) {
- if (nativeEventName !== eventNameToWrap || !this._eventMap
- || !this._eventMap[cb]) {
- return nativeRemoveEventListener.apply(this, arguments);
- }
- var unwrappedCb = this._eventMap[cb];
- delete this._eventMap[cb];
- return nativeRemoveEventListener.apply(this, [nativeEventName,
- unwrappedCb]);
+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]
};
+};
- Object.defineProperty(proto, 'on' + eventNameToWrap, {
- get: function() {
- return this['_on' + eventNameToWrap];
- },
- set: function(cb) {
- if (this['_on' + eventNameToWrap]) {
- this.removeEventListener(eventNameToWrap,
- this['_on' + eventNameToWrap]);
- delete this['_on' + eventNameToWrap];
- }
- if (cb) {
- this.addEventListener(eventNameToWrap,
- this['_on' + eventNameToWrap] = cb);
- }
- }
- });
-}
-
-// Utility methods.
-module.exports = {
- extractVersion: extractVersion,
- wrapPeerConnectionEvent: wrapPeerConnectionEvent,
- disableLog: function(bool) {
- if (typeof bool !== 'boolean') {
- return new Error('Argument type: ' + 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.
- */
- disableWarnings: function(bool) {
- if (typeof bool !== 'boolean') {
- return new Error('Argument type: ' + typeof bool +
- '. Please use a boolean.');
- }
- deprecationWarnings_ = !bool;
- return 'adapter.js deprecation warnings ' + (bool ? 'disabled' : 'enabled');
- },
-
- log: function() {
- if (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.
- */
- deprecated: function(oldMethod, newMethod) {
- if (!deprecationWarnings_) {
- return;
- }
- console.warn(oldMethod + ' is deprecated, please use ' + newMethod +
- ' instead.');
- },
-
- /**
- * Browser detector.
- *
- * @return {object} result containing browser and version
- * properties.
- */
- detectBrowser: function(window) {
- var navigator = window && window.navigator;
-
- // Returned result object.
- var result = {};
- result.browser = null;
- result.version = null;
-
- // Fail early if it's not a browser
- if (typeof window === 'undefined' || !window.navigator) {
- result.browser = 'Not a browser.';
- return result;
- }
-
- if (navigator.mozGetUserMedia) { // Firefox.
- result.browser = 'firefox';
- result.version = extractVersion(navigator.userAgent,
- /Firefox\/(\d+)\./, 1);
- } else if (navigator.webkitGetUserMedia) {
- // Chrome, Chromium, Webview, Opera.
- // Version matches Chrome/WebRTC version.
- result.browser = 'chrome';
- result.version = extractVersion(navigator.userAgent,
- /Chrom(e|ium)\/(\d+)\./, 2);
- } else if (navigator.mediaDevices &&
- navigator.userAgent.match(/Edge\/(\d+).(\d+)$/)) { // Edge.
- result.browser = 'edge';
- result.version = extractVersion(navigator.userAgent,
- /Edge\/(\d+).(\d+)$/, 2);
- } else if (navigator.mediaDevices &&
- navigator.userAgent.match(/AppleWebKit\/(\d+)\./)) { // Safari.
- result.browser = 'safari';
- result.version = extractVersion(navigator.userAgent,
- /AppleWebKit\/(\d+)\./, 1);
- } else { // Default fallthrough: not supported.
- result.browser = 'Not a supported browser.';
- return result;
+// 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;
}
-
- return result;
+ // TODO: check the modifier a bit more.
}
+ return true;
};
-},{}]},{},[3])(3)
-});
\ No newline at end of file
+// Expose public methods.
+if (typeof module === 'object') {
+ module.exports = SDPUtils;
+}
+
+},{}]},{},[1])(1)
+});
projects / thirdparty / freeswitch.git / commitdiff
