5178 lines
188 KiB
JavaScript
Executable File
5178 lines
188 KiB
JavaScript
Executable File
(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) 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 _adapter_factory = require('./adapter_factory.js');
|
||
|
||
var adapter = (0, _adapter_factory.adapterFactory)({ window: window });
|
||
module.exports = adapter; // this is the difference from adapter_core.
|
||
|
||
},{"./adapter_factory.js":2}],2:[function(require,module,exports){
|
||
'use strict';
|
||
|
||
Object.defineProperty(exports, "__esModule", {
|
||
value: true
|
||
});
|
||
exports.adapterFactory = adapterFactory;
|
||
|
||
var _utils = require('./utils');
|
||
|
||
var utils = _interopRequireWildcard(_utils);
|
||
|
||
var _chrome_shim = require('./chrome/chrome_shim');
|
||
|
||
var chromeShim = _interopRequireWildcard(_chrome_shim);
|
||
|
||
var _edge_shim = require('./edge/edge_shim');
|
||
|
||
var edgeShim = _interopRequireWildcard(_edge_shim);
|
||
|
||
var _firefox_shim = require('./firefox/firefox_shim');
|
||
|
||
var firefoxShim = _interopRequireWildcard(_firefox_shim);
|
||
|
||
var _safari_shim = require('./safari/safari_shim');
|
||
|
||
var safariShim = _interopRequireWildcard(_safari_shim);
|
||
|
||
var _common_shim = require('./common_shim');
|
||
|
||
var commonShim = _interopRequireWildcard(_common_shim);
|
||
|
||
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; } }
|
||
|
||
// 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;
|
||
|
||
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {
|
||
shimChrome: true,
|
||
shimFirefox: true,
|
||
shimEdge: true,
|
||
shimSafari: true
|
||
};
|
||
|
||
// Utils.
|
||
var logging = utils.log;
|
||
var browserDetails = utils.detectBrowser(window);
|
||
|
||
var adapter = {
|
||
browserDetails: browserDetails,
|
||
commonShim: commonShim,
|
||
extractVersion: utils.extractVersion,
|
||
disableLog: utils.disableLog,
|
||
disableWarnings: utils.disableWarnings
|
||
};
|
||
|
||
// Shim browser if found.
|
||
switch (browserDetails.browser) {
|
||
case 'chrome':
|
||
if (!chromeShim || !chromeShim.shimPeerConnection || !options.shimChrome) {
|
||
logging('Chrome shim is not included in this adapter release.');
|
||
return adapter;
|
||
}
|
||
logging('adapter.js shimming chrome.');
|
||
// Export to the adapter global object visible in the browser.
|
||
adapter.browserShim = chromeShim;
|
||
|
||
chromeShim.shimGetUserMedia(window);
|
||
chromeShim.shimMediaStream(window);
|
||
chromeShim.shimPeerConnection(window);
|
||
chromeShim.shimOnTrack(window);
|
||
chromeShim.shimAddTrackRemoveTrack(window);
|
||
chromeShim.shimGetSendersWithDtmf(window);
|
||
chromeShim.shimSenderReceiverGetStats(window);
|
||
chromeShim.fixNegotiationNeeded(window);
|
||
|
||
commonShim.shimRTCIceCandidate(window);
|
||
commonShim.shimConnectionState(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;
|
||
|
||
firefoxShim.shimGetUserMedia(window);
|
||
firefoxShim.shimPeerConnection(window);
|
||
firefoxShim.shimOnTrack(window);
|
||
firefoxShim.shimRemoveStream(window);
|
||
firefoxShim.shimSenderGetStats(window);
|
||
firefoxShim.shimReceiverGetStats(window);
|
||
firefoxShim.shimRTCDataChannel(window);
|
||
|
||
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;
|
||
|
||
edgeShim.shimGetUserMedia(window);
|
||
edgeShim.shimGetDisplayMedia(window);
|
||
edgeShim.shimPeerConnection(window);
|
||
edgeShim.shimReplaceTrack(window);
|
||
|
||
// the edge shim implements the full RTCIceCandidate object.
|
||
|
||
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;
|
||
|
||
safariShim.shimRTCIceServerUrls(window);
|
||
safariShim.shimCreateOfferLegacy(window);
|
||
safariShim.shimCallbacksAPI(window);
|
||
safariShim.shimLocalStreamsAPI(window);
|
||
safariShim.shimRemoteStreamsAPI(window);
|
||
safariShim.shimTrackEventTransceiver(window);
|
||
safariShim.shimGetUserMedia(window);
|
||
|
||
commonShim.shimRTCIceCandidate(window);
|
||
commonShim.shimMaxMessageSize(window);
|
||
commonShim.shimSendThrowTypeError(window);
|
||
break;
|
||
default:
|
||
logging('Unsupported browser!');
|
||
break;
|
||
}
|
||
|
||
return adapter;
|
||
}
|
||
|
||
// Browser shims.
|
||
|
||
},{"./chrome/chrome_shim":3,"./common_shim":6,"./edge/edge_shim":7,"./firefox/firefox_shim":11,"./safari/safari_shim":14,"./utils":15}],3:[function(require,module,exports){
|
||
|
||
/*
|
||
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
'use strict';
|
||
|
||
Object.defineProperty(exports, "__esModule", {
|
||
value: true
|
||
});
|
||
exports.shimGetDisplayMedia = exports.shimGetUserMedia = undefined;
|
||
|
||
var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
|
||
|
||
var _getusermedia = require('./getusermedia');
|
||
|
||
Object.defineProperty(exports, 'shimGetUserMedia', {
|
||
enumerable: true,
|
||
get: function get() {
|
||
return _getusermedia.shimGetUserMedia;
|
||
}
|
||
});
|
||
|
||
var _getdisplaymedia = require('./getdisplaymedia');
|
||
|
||
Object.defineProperty(exports, 'shimGetDisplayMedia', {
|
||
enumerable: true,
|
||
get: function get() {
|
||
return _getdisplaymedia.shimGetDisplayMedia;
|
||
}
|
||
});
|
||
exports.shimMediaStream = shimMediaStream;
|
||
exports.shimOnTrack = shimOnTrack;
|
||
exports.shimGetSendersWithDtmf = shimGetSendersWithDtmf;
|
||
exports.shimSenderReceiverGetStats = shimSenderReceiverGetStats;
|
||
exports.shimAddTrackRemoveTrackWithNative = shimAddTrackRemoveTrackWithNative;
|
||
exports.shimAddTrackRemoveTrack = shimAddTrackRemoveTrack;
|
||
exports.shimPeerConnection = shimPeerConnection;
|
||
exports.fixNegotiationNeeded = fixNegotiationNeeded;
|
||
|
||
var _utils = require('../utils.js');
|
||
|
||
var utils = _interopRequireWildcard(_utils);
|
||
|
||
function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
|
||
|
||
/* iterates the stats graph recursively. */
|
||
function walkStats(stats, base, resultSet) {
|
||
if (!base || resultSet.has(base.id)) {
|
||
return;
|
||
}
|
||
resultSet.set(base.id, base);
|
||
Object.keys(base).forEach(function (name) {
|
||
if (name.endsWith('Id')) {
|
||
walkStats(stats, stats.get(base[name]), resultSet);
|
||
} else if (name.endsWith('Ids')) {
|
||
base[name].forEach(function (id) {
|
||
walkStats(stats, stats.get(id), resultSet);
|
||
});
|
||
}
|
||
});
|
||
}
|
||
|
||
/* filter getStats for a sender/receiver track. */
|
||
function filterStats(result, track, outbound) {
|
||
var streamStatsType = outbound ? 'outbound-rtp' : 'inbound-rtp';
|
||
var filteredResult = new Map();
|
||
if (track === null) {
|
||
return filteredResult;
|
||
}
|
||
var trackStats = [];
|
||
result.forEach(function (value) {
|
||
if (value.type === 'track' && value.trackIdentifier === track.id) {
|
||
trackStats.push(value);
|
||
}
|
||
});
|
||
trackStats.forEach(function (trackStat) {
|
||
result.forEach(function (stats) {
|
||
if (stats.type === streamStatsType && stats.trackId === trackStat.id) {
|
||
walkStats(result, stats, filteredResult);
|
||
}
|
||
});
|
||
});
|
||
return filteredResult;
|
||
}
|
||
|
||
function shimMediaStream(window) {
|
||
window.MediaStream = window.MediaStream || window.webkitMediaStream;
|
||
}
|
||
|
||
function shimOnTrack(window) {
|
||
if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCPeerConnection && !('ontrack' in window.RTCPeerConnection.prototype)) {
|
||
Object.defineProperty(window.RTCPeerConnection.prototype, 'ontrack', {
|
||
get: function get() {
|
||
return this._ontrack;
|
||
},
|
||
set: function set(f) {
|
||
if (this._ontrack) {
|
||
this.removeEventListener('track', this._ontrack);
|
||
}
|
||
this.addEventListener('track', this._ontrack = f);
|
||
},
|
||
|
||
enumerable: true,
|
||
configurable: true
|
||
});
|
||
var origSetRemoteDescription = window.RTCPeerConnection.prototype.setRemoteDescription;
|
||
window.RTCPeerConnection.prototype.setRemoteDescription = function () {
|
||
var _this = this;
|
||
|
||
if (!this._ontrackpoly) {
|
||
this._ontrackpoly = function (e) {
|
||
// onaddstream does not fire when a track is added to an existing
|
||
// stream. But stream.onaddtrack is implemented so we use that.
|
||
e.stream.addEventListener('addtrack', function (te) {
|
||
var receiver = void 0;
|
||
if (window.RTCPeerConnection.prototype.getReceivers) {
|
||
receiver = _this.getReceivers().find(function (r) {
|
||
return r.track && r.track.id === te.track.id;
|
||
});
|
||
} else {
|
||
receiver = { track: te.track };
|
||
}
|
||
|
||
var event = new Event('track');
|
||
event.track = te.track;
|
||
event.receiver = receiver;
|
||
event.transceiver = { receiver: receiver };
|
||
event.streams = [e.stream];
|
||
_this.dispatchEvent(event);
|
||
});
|
||
e.stream.getTracks().forEach(function (track) {
|
||
var receiver = void 0;
|
||
if (window.RTCPeerConnection.prototype.getReceivers) {
|
||
receiver = _this.getReceivers().find(function (r) {
|
||
return r.track && r.track.id === track.id;
|
||
});
|
||
} else {
|
||
receiver = { track: track };
|
||
}
|
||
var event = new Event('track');
|
||
event.track = track;
|
||
event.receiver = receiver;
|
||
event.transceiver = { receiver: receiver };
|
||
event.streams = [e.stream];
|
||
_this.dispatchEvent(event);
|
||
});
|
||
};
|
||
this.addEventListener('addstream', this._ontrackpoly);
|
||
}
|
||
return origSetRemoteDescription.apply(this, arguments);
|
||
};
|
||
} else {
|
||
// even if RTCRtpTransceiver is in window, it is only used and
|
||
// emitted in unified-plan. Unfortunately this means we need
|
||
// to unconditionally wrap the event.
|
||
utils.wrapPeerConnectionEvent(window, 'track', function (e) {
|
||
if (!e.transceiver) {
|
||
Object.defineProperty(e, 'transceiver', { value: { receiver: e.receiver } });
|
||
}
|
||
return e;
|
||
});
|
||
}
|
||
}
|
||
|
||
function shimGetSendersWithDtmf(window) {
|
||
// Overrides addTrack/removeTrack, depends on shimAddTrackRemoveTrack.
|
||
if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCPeerConnection && !('getSenders' in window.RTCPeerConnection.prototype) && 'createDTMFSender' in window.RTCPeerConnection.prototype) {
|
||
var shimSenderWithDtmf = function shimSenderWithDtmf(pc, track) {
|
||
return {
|
||
track: track,
|
||
get dtmf() {
|
||
if (this._dtmf === undefined) {
|
||
if (track.kind === 'audio') {
|
||
this._dtmf = pc.createDTMFSender(track);
|
||
} else {
|
||
this._dtmf = null;
|
||
}
|
||
}
|
||
return this._dtmf;
|
||
},
|
||
_pc: pc
|
||
};
|
||
};
|
||
|
||
// augment addTrack when getSenders is not available.
|
||
if (!window.RTCPeerConnection.prototype.getSenders) {
|
||
window.RTCPeerConnection.prototype.getSenders = function () {
|
||
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 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._senders = this._senders || [];
|
||
origAddStream.apply(this, [stream]);
|
||
stream.getTracks().forEach(function (track) {
|
||
_this2._senders.push(shimSenderWithDtmf(_this2, track));
|
||
});
|
||
};
|
||
|
||
var origRemoveStream = window.RTCPeerConnection.prototype.removeStream;
|
||
window.RTCPeerConnection.prototype.removeStream = function (stream) {
|
||
var _this3 = this;
|
||
|
||
this._senders = this._senders || [];
|
||
origRemoveStream.apply(this, [stream]);
|
||
|
||
stream.getTracks().forEach(function (track) {
|
||
var sender = _this3._senders.find(function (s) {
|
||
return s.track === track;
|
||
});
|
||
if (sender) {
|
||
// remove sender
|
||
_this3._senders.splice(_this3._senders.indexOf(sender), 1);
|
||
}
|
||
});
|
||
};
|
||
} else if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCPeerConnection && 'getSenders' in window.RTCPeerConnection.prototype && 'createDTMFSender' in window.RTCPeerConnection.prototype && window.RTCRtpSender && !('dtmf' in window.RTCRtpSender.prototype)) {
|
||
var origGetSenders = window.RTCPeerConnection.prototype.getSenders;
|
||
window.RTCPeerConnection.prototype.getSenders = function () {
|
||
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;
|
||
};
|
||
}
|
||
|
||
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)
|
||
);
|
||
});
|
||
};
|
||
}
|
||
|
||
// 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 (!('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'));
|
||
}
|
||
return origGetStats.apply(this, arguments);
|
||
};
|
||
}
|
||
|
||
function shimAddTrackRemoveTrackWithNative(window) {
|
||
// shim addTrack/removeTrack with native variants in order to make
|
||
// the interactions with legacy getLocalStreams behave as in other browsers.
|
||
// Keeps a mapping stream.id => [stream, rtpsenders...]
|
||
window.RTCPeerConnection.prototype.getLocalStreams = function () {
|
||
var _this7 = this;
|
||
|
||
this._shimmedLocalStreams = this._shimmedLocalStreams || {};
|
||
return Object.keys(this._shimmedLocalStreams).map(function (streamId) {
|
||
return _this7._shimmedLocalStreams[streamId][0];
|
||
});
|
||
};
|
||
|
||
var origAddTrack = window.RTCPeerConnection.prototype.addTrack;
|
||
window.RTCPeerConnection.prototype.addTrack = function (track, stream) {
|
||
if (!stream) {
|
||
return origAddTrack.apply(this, arguments);
|
||
}
|
||
this._shimmedLocalStreams = this._shimmedLocalStreams || {};
|
||
|
||
var sender = origAddTrack.apply(this, arguments);
|
||
if (!this._shimmedLocalStreams[stream.id]) {
|
||
this._shimmedLocalStreams[stream.id] = [stream, sender];
|
||
} else if (this._shimmedLocalStreams[stream.id].indexOf(sender) === -1) {
|
||
this._shimmedLocalStreams[stream.id].push(sender);
|
||
}
|
||
return sender;
|
||
};
|
||
|
||
var origAddStream = window.RTCPeerConnection.prototype.addStream;
|
||
window.RTCPeerConnection.prototype.addStream = function (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 (alreadyExists) {
|
||
throw new DOMException('Track already exists.', 'InvalidAccessError');
|
||
}
|
||
});
|
||
var existingSenders = this.getSenders();
|
||
origAddStream.apply(this, arguments);
|
||
var newSenders = this.getSenders().filter(function (newSender) {
|
||
return existingSenders.indexOf(newSender) === -1;
|
||
});
|
||
this._shimmedLocalStreams[stream.id] = [stream].concat(newSenders);
|
||
};
|
||
|
||
var origRemoveStream = window.RTCPeerConnection.prototype.removeStream;
|
||
window.RTCPeerConnection.prototype.removeStream = function (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];
|
||
});
|
||
};
|
||
|
||
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 || {};
|
||
|
||
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 streams = [].slice.call(arguments, 1);
|
||
if (streams.length !== 1 || !streams[0].getTracks().find(function (t) {
|
||
return t === track;
|
||
})) {
|
||
// this is not fully correct but all we can manage without
|
||
// [[associated MediaStreams]] internal slot.
|
||
throw new DOMException('The adapter.js addTrack polyfill only supports a single ' + ' stream which is associated with the specified track.', 'NotSupportedError');
|
||
}
|
||
|
||
var alreadyExists = this.getSenders().find(function (s) {
|
||
return s.track === track;
|
||
});
|
||
if (alreadyExists) {
|
||
throw new DOMException('Track already exists.', 'InvalidAccessError');
|
||
}
|
||
|
||
this._streams = this._streams || {};
|
||
this._reverseStreams = this._reverseStreams || {};
|
||
var oldStream = this._streams[stream.id];
|
||
if (oldStream) {
|
||
// this is using odd Chrome behaviour, use with caution:
|
||
// https://bugs.chromium.org/p/webrtc/issues/detail?id=7815
|
||
// Note: we rely on the high-level addTrack/dtmf shim to
|
||
// create the sender with a dtmf sender.
|
||
oldStream.addTrack(track);
|
||
|
||
// Trigger ONN async.
|
||
Promise.resolve().then(function () {
|
||
_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);
|
||
});
|
||
};
|
||
});
|
||
|
||
var origSetLocalDescription = window.RTCPeerConnection.prototype.setLocalDescription;
|
||
window.RTCPeerConnection.prototype.setLocalDescription = function () {
|
||
if (!arguments.length || !arguments[0].type) {
|
||
return origSetLocalDescription.apply(this, arguments);
|
||
}
|
||
arguments[0] = replaceExternalStreamId(this, arguments[0]);
|
||
return origSetLocalDescription.apply(this, arguments);
|
||
};
|
||
|
||
// TODO: mangle getStats: https://w3c.github.io/webrtc-stats/#dom-rtcmediastreamstats-streamidentifier
|
||
|
||
var origLocalDescription = Object.getOwnPropertyDescriptor(window.RTCPeerConnection.prototype, 'localDescription');
|
||
Object.defineProperty(window.RTCPeerConnection.prototype, 'localDescription', {
|
||
get: function get() {
|
||
var description = origLocalDescription.get.apply(this);
|
||
if (description.type === '') {
|
||
return description;
|
||
}
|
||
return replaceInternalStreamId(this, description);
|
||
}
|
||
});
|
||
|
||
window.RTCPeerConnection.prototype.removeTrack = function (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];
|
||
}
|
||
});
|
||
|
||
if (stream) {
|
||
if (stream.getTracks().length === 1) {
|
||
// if this is the last track of the stream, remove the stream. This
|
||
// takes care of any shimmed _senders.
|
||
this.removeStream(this._reverseStreams[stream.id]);
|
||
} else {
|
||
// relying on the same odd chrome behaviour as above.
|
||
stream.removeTrack(sender.track);
|
||
}
|
||
this.dispatchEvent(new Event('negotiationneeded'));
|
||
}
|
||
};
|
||
}
|
||
|
||
function shimPeerConnection(window) {
|
||
if (!window.RTCPeerConnection && window.webkitRTCPeerConnection) {
|
||
// very basic support for old versions.
|
||
window.RTCPeerConnection = window.webkitRTCPeerConnection;
|
||
}
|
||
if (!window.RTCPeerConnection) {
|
||
return;
|
||
}
|
||
|
||
var origGetStats = window.RTCPeerConnection.prototype.getStats;
|
||
window.RTCPeerConnection.prototype.getStats = function (selector, successCallback, errorCallback) {
|
||
var _this15 = this;
|
||
|
||
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;
|
||
});
|
||
|
||
return standardReport;
|
||
};
|
||
|
||
// shim getStats with maplike support
|
||
var makeMapStats = function makeMapStats(stats) {
|
||
return new Map(Object.keys(stats).map(function (key) {
|
||
return [key, stats[key]];
|
||
}));
|
||
};
|
||
|
||
if (arguments.length >= 2) {
|
||
var successCallbackWrapper_ = function successCallbackWrapper_(response) {
|
||
args[1](makeMapStats(fixChromeStats_(response)));
|
||
};
|
||
|
||
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);
|
||
};
|
||
|
||
// 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);
|
||
};
|
||
}
|
||
|
||
function fixNegotiationNeeded(window) {
|
||
utils.wrapPeerConnectionEvent(window, 'negotiationneeded', function (e) {
|
||
var pc = e.target;
|
||
if (pc.signalingState !== 'stable') {
|
||
return;
|
||
}
|
||
return e;
|
||
});
|
||
}
|
||
|
||
},{"../utils.js":15,"./getdisplaymedia":4,"./getusermedia":5}],4:[function(require,module,exports){
|
||
/*
|
||
* Copyright (c) 2018 The adapter.js project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
'use strict';
|
||
|
||
Object.defineProperty(exports, "__esModule", {
|
||
value: true
|
||
});
|
||
exports.shimGetDisplayMedia = shimGetDisplayMedia;
|
||
function shimGetDisplayMedia(window, getSourceId) {
|
||
if (window.navigator.mediaDevices && 'getDisplayMedia' in window.navigator.mediaDevices) {
|
||
return;
|
||
}
|
||
if (!window.navigator.mediaDevices) {
|
||
return;
|
||
}
|
||
// getSourceId is a function that returns a promise resolving with
|
||
// the sourceId of the screen/window/tab to be shared.
|
||
if (typeof getSourceId !== 'function') {
|
||
console.error('shimGetDisplayMedia: getSourceId argument is not ' + 'a function');
|
||
return;
|
||
}
|
||
window.navigator.mediaDevices.getDisplayMedia = function (constraints) {
|
||
return getSourceId(constraints).then(function (sourceId) {
|
||
var widthSpecified = constraints.video && constraints.video.width;
|
||
var heightSpecified = constraints.video && constraints.video.height;
|
||
var frameRateSpecified = constraints.video && constraints.video.frameRate;
|
||
constraints.video = {
|
||
mandatory: {
|
||
chromeMediaSource: 'desktop',
|
||
chromeMediaSourceId: sourceId,
|
||
maxFrameRate: frameRateSpecified || 3
|
||
}
|
||
};
|
||
if (widthSpecified) {
|
||
constraints.video.mandatory.maxWidth = widthSpecified;
|
||
}
|
||
if (heightSpecified) {
|
||
constraints.video.mandatory.maxHeight = heightSpecified;
|
||
}
|
||
return window.navigator.mediaDevices.getUserMedia(constraints);
|
||
});
|
||
};
|
||
}
|
||
|
||
},{}],5:[function(require,module,exports){
|
||
/*
|
||
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
'use strict';
|
||
|
||
Object.defineProperty(exports, "__esModule", {
|
||
value: true
|
||
});
|
||
|
||
var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
|
||
|
||
exports.shimGetUserMedia = shimGetUserMedia;
|
||
|
||
var _utils = require('../utils.js');
|
||
|
||
var utils = _interopRequireWildcard(_utils);
|
||
|
||
function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
|
||
|
||
var logging = utils.log;
|
||
|
||
function shimGetUserMedia(window) {
|
||
var navigator = window && window.navigator;
|
||
|
||
if (!navigator.mediaDevices) {
|
||
return;
|
||
}
|
||
|
||
var browserDetails = utils.detectBrowser(window);
|
||
|
||
var constraintsToChrome_ = function constraintsToChrome_(c) {
|
||
if ((typeof c === 'undefined' ? 'undefined' : _typeof(c)) !== 'object' || c.mandatory || c.optional) {
|
||
return c;
|
||
}
|
||
var cc = {};
|
||
Object.keys(c).forEach(function (key) {
|
||
if (key === 'require' || key === 'advanced' || key === 'mediaSource') {
|
||
return;
|
||
}
|
||
var r = _typeof(c[key]) === 'object' ? c[key] : { ideal: c[key] };
|
||
if (r.exact !== undefined && typeof r.exact === 'number') {
|
||
r.min = r.max = r.exact;
|
||
}
|
||
var oldname_ = function oldname_(prefix, name) {
|
||
if (prefix) {
|
||
return prefix + name.charAt(0).toUpperCase() + name.slice(1);
|
||
}
|
||
return name === 'deviceId' ? 'sourceId' : name;
|
||
};
|
||
if (r.ideal !== undefined) {
|
||
cc.optional = cc.optional || [];
|
||
var oc = {};
|
||
if (typeof r.ideal === 'number') {
|
||
oc[oldname_('min', key)] = r.ideal;
|
||
cc.optional.push(oc);
|
||
oc = {};
|
||
oc[oldname_('max', key)] = r.ideal;
|
||
cc.optional.push(oc);
|
||
} else {
|
||
oc[oldname_('', key)] = r.ideal;
|
||
cc.optional.push(oc);
|
||
}
|
||
}
|
||
if (r.exact !== undefined && typeof r.exact !== 'number') {
|
||
cc.mandatory = cc.mandatory || {};
|
||
cc.mandatory[oldname_('', key)] = r.exact;
|
||
} else {
|
||
['min', 'max'].forEach(function (mix) {
|
||
if (r[mix] !== undefined) {
|
||
cc.mandatory = cc.mandatory || {};
|
||
cc.mandatory[oldname_(mix, key)] = r[mix];
|
||
}
|
||
});
|
||
}
|
||
});
|
||
if (c.advanced) {
|
||
cc.optional = (cc.optional || []).concat(c.advanced);
|
||
}
|
||
return cc;
|
||
};
|
||
|
||
var shimConstraints_ = function shimConstraints_(constraints, func) {
|
||
if (browserDetails.version >= 61) {
|
||
return func(constraints);
|
||
}
|
||
constraints = JSON.parse(JSON.stringify(constraints));
|
||
if (constraints && _typeof(constraints.audio) === 'object') {
|
||
var remap = function remap(obj, a, b) {
|
||
if (a in obj && !(b in obj)) {
|
||
obj[b] = obj[a];
|
||
delete obj[a];
|
||
}
|
||
};
|
||
constraints = JSON.parse(JSON.stringify(constraints));
|
||
remap(constraints.audio, 'autoGainControl', 'googAutoGainControl');
|
||
remap(constraints.audio, 'noiseSuppression', 'googNoiseSuppression');
|
||
constraints.audio = constraintsToChrome_(constraints.audio);
|
||
}
|
||
if (constraints && _typeof(constraints.video) === 'object') {
|
||
// Shim facingMode for mobile & surface pro.
|
||
var face = constraints.video.facingMode;
|
||
face = face && ((typeof face === 'undefined' ? 'undefined' : _typeof(face)) === 'object' ? face : { ideal: face });
|
||
var getSupportedFacingModeLies = browserDetails.version < 66;
|
||
|
||
if (face && (face.exact === 'user' || face.exact === 'environment' || face.ideal === 'user' || face.ideal === 'environment') && !(navigator.mediaDevices.getSupportedConstraints && navigator.mediaDevices.getSupportedConstraints().facingMode && !getSupportedFacingModeLies)) {
|
||
delete constraints.video.facingMode;
|
||
var matches = void 0;
|
||
if (face.exact === 'environment' || face.ideal === 'environment') {
|
||
matches = ['back', 'rear'];
|
||
} else if (face.exact === 'user' || face.ideal === 'user') {
|
||
matches = ['front'];
|
||
}
|
||
if (matches) {
|
||
// Look for matches in label, or use last cam for back (typical).
|
||
return navigator.mediaDevices.enumerateDevices().then(function (devices) {
|
||
devices = devices.filter(function (d) {
|
||
return d.kind === 'videoinput';
|
||
});
|
||
var dev = devices.find(function (d) {
|
||
return matches.some(function (match) {
|
||
return d.label.toLowerCase().includes(match);
|
||
});
|
||
});
|
||
if (!dev && devices.length && matches.includes('back')) {
|
||
dev = devices[devices.length - 1]; // more likely the back cam
|
||
}
|
||
if (dev) {
|
||
constraints.video.deviceId = face.exact ? { exact: dev.deviceId } : { ideal: dev.deviceId };
|
||
}
|
||
constraints.video = constraintsToChrome_(constraints.video);
|
||
logging('chrome: ' + JSON.stringify(constraints));
|
||
return func(constraints);
|
||
});
|
||
}
|
||
}
|
||
constraints.video = constraintsToChrome_(constraints.video);
|
||
}
|
||
logging('chrome: ' + JSON.stringify(constraints));
|
||
return func(constraints);
|
||
};
|
||
|
||
var shimError_ = function shimError_(e) {
|
||
if (browserDetails.version >= 64) {
|
||
return e;
|
||
}
|
||
return {
|
||
name: {
|
||
PermissionDeniedError: 'NotAllowedError',
|
||
PermissionDismissedError: 'NotAllowedError',
|
||
InvalidStateError: 'NotAllowedError',
|
||
DevicesNotFoundError: 'NotFoundError',
|
||
ConstraintNotSatisfiedError: 'OverconstrainedError',
|
||
TrackStartError: 'NotReadableError',
|
||
MediaDeviceFailedDueToShutdown: 'NotAllowedError',
|
||
MediaDeviceKillSwitchOn: 'NotAllowedError',
|
||
TabCaptureError: 'AbortError',
|
||
ScreenCaptureError: 'AbortError',
|
||
DeviceCaptureError: 'AbortError'
|
||
}[e.name] || e.name,
|
||
message: e.message,
|
||
constraint: e.constraint || e.constraintName,
|
||
toString: function toString() {
|
||
return this.name + (this.message && ': ') + this.message;
|
||
}
|
||
};
|
||
};
|
||
|
||
var getUserMedia_ = function getUserMedia_(constraints, onSuccess, onError) {
|
||
shimConstraints_(constraints, function (c) {
|
||
navigator.webkitGetUserMedia(c, onSuccess, function (e) {
|
||
if (onError) {
|
||
onError(shimError_(e));
|
||
}
|
||
});
|
||
});
|
||
};
|
||
navigator.getUserMedia = getUserMedia_.bind(navigator);
|
||
|
||
// Even though Chrome 45 has navigator.mediaDevices and a getUserMedia
|
||
// function which returns a Promise, it does not accept spec-style
|
||
// constraints.
|
||
var origGetUserMedia = navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices);
|
||
navigator.mediaDevices.getUserMedia = function (cs) {
|
||
return shimConstraints_(cs, function (c) {
|
||
return origGetUserMedia(c).then(function (stream) {
|
||
if (c.audio && !stream.getAudioTracks().length || c.video && !stream.getVideoTracks().length) {
|
||
stream.getTracks().forEach(function (track) {
|
||
track.stop();
|
||
});
|
||
throw new DOMException('', 'NotFoundError');
|
||
}
|
||
return stream;
|
||
}, function (e) {
|
||
return Promise.reject(shimError_(e));
|
||
});
|
||
});
|
||
};
|
||
}
|
||
|
||
},{"../utils.js":15}],6:[function(require,module,exports){
|
||
/*
|
||
* Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
'use strict';
|
||
|
||
Object.defineProperty(exports, "__esModule", {
|
||
value: true
|
||
});
|
||
|
||
var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
|
||
|
||
exports.shimRTCIceCandidate = shimRTCIceCandidate;
|
||
exports.shimMaxMessageSize = shimMaxMessageSize;
|
||
exports.shimSendThrowTypeError = shimSendThrowTypeError;
|
||
exports.shimConnectionState = shimConnectionState;
|
||
|
||
var _sdp = require('sdp');
|
||
|
||
var _sdp2 = _interopRequireDefault(_sdp);
|
||
|
||
var _utils = require('./utils');
|
||
|
||
var utils = _interopRequireWildcard(_utils);
|
||
|
||
function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
|
||
|
||
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
|
||
|
||
function shimRTCIceCandidate(window) {
|
||
// foundation is arbitrarily chosen as an indicator for full support for
|
||
// https://w3c.github.io/webrtc-pc/#rtcicecandidate-interface
|
||
if (!window.RTCIceCandidate || window.RTCIceCandidate && 'foundation' in window.RTCIceCandidate.prototype) {
|
||
return;
|
||
}
|
||
|
||
var NativeRTCIceCandidate = window.RTCIceCandidate;
|
||
window.RTCIceCandidate = function (args) {
|
||
// Remove the a= which shouldn't be part of the candidate string.
|
||
if ((typeof args === 'undefined' ? 'undefined' : _typeof(args)) === 'object' && args.candidate && args.candidate.indexOf('a=') === 0) {
|
||
args = JSON.parse(JSON.stringify(args));
|
||
args.candidate = args.candidate.substr(2);
|
||
}
|
||
|
||
if (args.candidate && args.candidate.length) {
|
||
// Augment the native candidate with the parsed fields.
|
||
var nativeCandidate = new NativeRTCIceCandidate(args);
|
||
var parsedCandidate = _sdp2.default.parseCandidate(args.candidate);
|
||
var augmentedCandidate = Object.assign(nativeCandidate, parsedCandidate);
|
||
|
||
// Add a serializer that does not serialize the extra attributes.
|
||
augmentedCandidate.toJSON = function () {
|
||
return {
|
||
candidate: augmentedCandidate.candidate,
|
||
sdpMid: augmentedCandidate.sdpMid,
|
||
sdpMLineIndex: augmentedCandidate.sdpMLineIndex,
|
||
usernameFragment: augmentedCandidate.usernameFragment
|
||
};
|
||
};
|
||
return augmentedCandidate;
|
||
}
|
||
return new NativeRTCIceCandidate(args);
|
||
};
|
||
window.RTCIceCandidate.prototype = NativeRTCIceCandidate.prototype;
|
||
|
||
// Hook up the augmented candidate in onicecandidate and
|
||
// addEventListener('icecandidate', ...)
|
||
utils.wrapPeerConnectionEvent(window, 'icecandidate', function (e) {
|
||
if (e.candidate) {
|
||
Object.defineProperty(e, 'candidate', {
|
||
value: new window.RTCIceCandidate(e.candidate),
|
||
writable: 'false'
|
||
});
|
||
}
|
||
return e;
|
||
});
|
||
}
|
||
|
||
function shimMaxMessageSize(window) {
|
||
if (window.RTCSctpTransport || !window.RTCPeerConnection) {
|
||
return;
|
||
}
|
||
var browserDetails = utils.detectBrowser(window);
|
||
|
||
if (!('sctp' in window.RTCPeerConnection.prototype)) {
|
||
Object.defineProperty(window.RTCPeerConnection.prototype, 'sctp', {
|
||
get: function get() {
|
||
return typeof this._sctp === 'undefined' ? null : this._sctp;
|
||
}
|
||
});
|
||
}
|
||
|
||
var sctpInDescription = function sctpInDescription(description) {
|
||
var sections = _sdp2.default.splitSections(description.sdp);
|
||
sections.shift();
|
||
return sections.some(function (mediaSection) {
|
||
var mLine = _sdp2.default.parseMLine(mediaSection);
|
||
return mLine && mLine.kind === 'application' && mLine.protocol.indexOf('SCTP') !== -1;
|
||
});
|
||
};
|
||
|
||
var getRemoteFirefoxVersion = function getRemoteFirefoxVersion(description) {
|
||
// TODO: Is there a better solution for detecting Firefox?
|
||
var match = description.sdp.match(/mozilla...THIS_IS_SDPARTA-(\d+)/);
|
||
if (match === null || match.length < 2) {
|
||
return -1;
|
||
}
|
||
var version = parseInt(match[1], 10);
|
||
// Test for NaN (yes, this is ugly)
|
||
return version !== version ? -1 : version;
|
||
};
|
||
|
||
var getCanSendMaxMessageSize = function getCanSendMaxMessageSize(remoteIsFirefox) {
|
||
// Every implementation we know can send at least 64 KiB.
|
||
// Note: Although Chrome is technically able to send up to 256 KiB, the
|
||
// data does not reach the other peer reliably.
|
||
// See: https://bugs.chromium.org/p/webrtc/issues/detail?id=8419
|
||
var canSendMaxMessageSize = 65536;
|
||
if (browserDetails.browser === 'firefox') {
|
||
if (browserDetails.version < 57) {
|
||
if (remoteIsFirefox === -1) {
|
||
// FF < 57 will send in 16 KiB chunks using the deprecated PPID
|
||
// fragmentation.
|
||
canSendMaxMessageSize = 16384;
|
||
} else {
|
||
// However, other FF (and RAWRTC) can reassemble PPID-fragmented
|
||
// messages. Thus, supporting ~2 GiB when sending.
|
||
canSendMaxMessageSize = 2147483637;
|
||
}
|
||
} else if (browserDetails.version < 60) {
|
||
// Currently, all FF >= 57 will reset the remote maximum message size
|
||
// to the default value when a data channel is created at a later
|
||
// stage. :(
|
||
// See: https://bugzilla.mozilla.org/show_bug.cgi?id=1426831
|
||
canSendMaxMessageSize = browserDetails.version === 57 ? 65535 : 65536;
|
||
} else {
|
||
// FF >= 60 supports sending ~2 GiB
|
||
canSendMaxMessageSize = 2147483637;
|
||
}
|
||
}
|
||
return canSendMaxMessageSize;
|
||
};
|
||
|
||
var getMaxMessageSize = function getMaxMessageSize(description, remoteIsFirefox) {
|
||
// Note: 65536 bytes is the default value from the SDP spec. Also,
|
||
// every implementation we know supports receiving 65536 bytes.
|
||
var maxMessageSize = 65536;
|
||
|
||
// FF 57 has a slightly incorrect default remote max message size, so
|
||
// we need to adjust it here to avoid a failure when sending.
|
||
// See: https://bugzilla.mozilla.org/show_bug.cgi?id=1425697
|
||
if (browserDetails.browser === 'firefox' && browserDetails.version === 57) {
|
||
maxMessageSize = 65535;
|
||
}
|
||
|
||
var match = _sdp2.default.matchPrefix(description.sdp, 'a=max-message-size:');
|
||
if (match.length > 0) {
|
||
maxMessageSize = parseInt(match[0].substr(19), 10);
|
||
} else if (browserDetails.browser === 'firefox' && remoteIsFirefox !== -1) {
|
||
// If the maximum message size is not present in the remote SDP and
|
||
// both local and remote are Firefox, the remote peer can receive
|
||
// ~2 GiB.
|
||
maxMessageSize = 2147483637;
|
||
}
|
||
return maxMessageSize;
|
||
};
|
||
|
||
var origSetRemoteDescription = window.RTCPeerConnection.prototype.setRemoteDescription;
|
||
window.RTCPeerConnection.prototype.setRemoteDescription = function () {
|
||
this._sctp = null;
|
||
|
||
if (sctpInDescription(arguments[0])) {
|
||
// Check if the remote is FF.
|
||
var isFirefox = getRemoteFirefoxVersion(arguments[0]);
|
||
|
||
// Get the maximum message size the local peer is capable of sending
|
||
var canSendMMS = getCanSendMaxMessageSize(isFirefox);
|
||
|
||
// Get the maximum message size of the remote peer.
|
||
var remoteMMS = getMaxMessageSize(arguments[0], isFirefox);
|
||
|
||
// Determine final maximum message size
|
||
var maxMessageSize = void 0;
|
||
if (canSendMMS === 0 && remoteMMS === 0) {
|
||
maxMessageSize = Number.POSITIVE_INFINITY;
|
||
} else if (canSendMMS === 0 || remoteMMS === 0) {
|
||
maxMessageSize = Math.max(canSendMMS, remoteMMS);
|
||
} else {
|
||
maxMessageSize = Math.min(canSendMMS, remoteMMS);
|
||
}
|
||
|
||
// Create a dummy RTCSctpTransport object and the 'maxMessageSize'
|
||
// attribute.
|
||
var sctp = {};
|
||
Object.defineProperty(sctp, 'maxMessageSize', {
|
||
get: function get() {
|
||
return maxMessageSize;
|
||
}
|
||
});
|
||
this._sctp = sctp;
|
||
}
|
||
|
||
return origSetRemoteDescription.apply(this, arguments);
|
||
};
|
||
}
|
||
|
||
function shimSendThrowTypeError(window) {
|
||
if (!(window.RTCPeerConnection && 'createDataChannel' in window.RTCPeerConnection.prototype)) {
|
||
return;
|
||
}
|
||
|
||
// Note: Although Firefox >= 57 has a native implementation, the maximum
|
||
// message size can be reset for all data channels at a later stage.
|
||
// See: https://bugzilla.mozilla.org/show_bug.cgi?id=1426831
|
||
|
||
function wrapDcSend(dc, pc) {
|
||
var origDataChannelSend = dc.send;
|
||
dc.send = function () {
|
||
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;
|
||
});
|
||
}
|
||
|
||
/* shims RTCConnectionState by pretending it is the same as iceConnectionState.
|
||
* See https://bugs.chromium.org/p/webrtc/issues/detail?id=6145#c12
|
||
* for why this is a valid hack in Chrome. In Firefox it is slightly incorrect
|
||
* since DTLS failures would be hidden. See
|
||
* https://bugzilla.mozilla.org/show_bug.cgi?id=1265827
|
||
* for the Firefox tracking bug.
|
||
*/
|
||
function shimConnectionState(window) {
|
||
if (!window.RTCPeerConnection || 'connectionState' in window.RTCPeerConnection.prototype) {
|
||
return;
|
||
}
|
||
var proto = window.RTCPeerConnection.prototype;
|
||
Object.defineProperty(proto, 'connectionState', {
|
||
get: function get() {
|
||
return {
|
||
completed: 'connected',
|
||
checking: 'connecting'
|
||
}[this.iceConnectionState] || this.iceConnectionState;
|
||
},
|
||
|
||
enumerable: true,
|
||
configurable: true
|
||
});
|
||
Object.defineProperty(proto, 'onconnectionstatechange', {
|
||
get: function get() {
|
||
return this._onconnectionstatechange || null;
|
||
},
|
||
set: function set(cb) {
|
||
if (this._onconnectionstatechange) {
|
||
this.removeEventListener('connectionstatechange', this._onconnectionstatechange);
|
||
delete this._onconnectionstatechange;
|
||
}
|
||
if (cb) {
|
||
this.addEventListener('connectionstatechange', this._onconnectionstatechange = cb);
|
||
}
|
||
},
|
||
|
||
enumerable: true,
|
||
configurable: true
|
||
});
|
||
|
||
['setLocalDescription', 'setRemoteDescription'].forEach(function (method) {
|
||
var origMethod = proto[method];
|
||
proto[method] = function () {
|
||
if (!this._connectionstatechangepoly) {
|
||
this._connectionstatechangepoly = function (e) {
|
||
var pc = e.target;
|
||
if (pc._lastConnectionState !== pc.connectionState) {
|
||
pc._lastConnectionState = pc.connectionState;
|
||
var newEvent = new Event('connectionstatechange', e);
|
||
pc.dispatchEvent(newEvent);
|
||
}
|
||
return e;
|
||
};
|
||
this.addEventListener('iceconnectionstatechange', this._connectionstatechangepoly);
|
||
}
|
||
return origMethod.apply(this, arguments);
|
||
};
|
||
});
|
||
}
|
||
|
||
},{"./utils":15,"sdp":17}],7:[function(require,module,exports){
|
||
/*
|
||
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
'use strict';
|
||
|
||
Object.defineProperty(exports, "__esModule", {
|
||
value: true
|
||
});
|
||
exports.shimGetDisplayMedia = exports.shimGetUserMedia = undefined;
|
||
|
||
var _getusermedia = require('./getusermedia');
|
||
|
||
Object.defineProperty(exports, 'shimGetUserMedia', {
|
||
enumerable: true,
|
||
get: function get() {
|
||
return _getusermedia.shimGetUserMedia;
|
||
}
|
||
});
|
||
|
||
var _getdisplaymedia = require('./getdisplaymedia');
|
||
|
||
Object.defineProperty(exports, 'shimGetDisplayMedia', {
|
||
enumerable: true,
|
||
get: function get() {
|
||
return _getdisplaymedia.shimGetDisplayMedia;
|
||
}
|
||
});
|
||
exports.shimPeerConnection = shimPeerConnection;
|
||
exports.shimReplaceTrack = shimReplaceTrack;
|
||
|
||
var _utils = require('../utils');
|
||
|
||
var utils = _interopRequireWildcard(_utils);
|
||
|
||
var _filtericeservers = require('./filtericeservers');
|
||
|
||
var _rtcpeerconnectionShim = require('rtcpeerconnection-shim');
|
||
|
||
var _rtcpeerconnectionShim2 = _interopRequireDefault(_rtcpeerconnectionShim);
|
||
|
||
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
|
||
|
||
function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
|
||
|
||
function shimPeerConnection(window) {
|
||
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);
|
||
}
|
||
});
|
||
}
|
||
}
|
||
|
||
// ORTC defines the DTMF sender a bit different.
|
||
// https://github.com/w3c/ortc/issues/714
|
||
if (window.RTCRtpSender && !('dtmf' in window.RTCRtpSender.prototype)) {
|
||
Object.defineProperty(window.RTCRtpSender.prototype, 'dtmf', {
|
||
get: function get() {
|
||
if (this._dtmf === undefined) {
|
||
if (this.track.kind === 'audio') {
|
||
this._dtmf = new window.RTCDtmfSender(this);
|
||
} else if (this.track.kind === 'video') {
|
||
this._dtmf = null;
|
||
}
|
||
}
|
||
return this._dtmf;
|
||
}
|
||
});
|
||
}
|
||
// Edge currently only implements the RTCDtmfSender, not the
|
||
// RTCDTMFSender alias. See http://draft.ortc.org/#rtcdtmfsender2*
|
||
if (window.RTCDtmfSender && !window.RTCDTMFSender) {
|
||
window.RTCDTMFSender = window.RTCDtmfSender;
|
||
}
|
||
|
||
var RTCPeerConnectionShim = (0, _rtcpeerconnectionShim2.default)(window, browserDetails.version);
|
||
window.RTCPeerConnection = function (config) {
|
||
if (config && config.iceServers) {
|
||
config.iceServers = (0, _filtericeservers.filterIceServers)(config.iceServers, browserDetails.version);
|
||
utils.log('ICE servers after filtering:', config.iceServers);
|
||
}
|
||
return new RTCPeerConnectionShim(config);
|
||
};
|
||
window.RTCPeerConnection.prototype = RTCPeerConnectionShim.prototype;
|
||
}
|
||
|
||
function shimReplaceTrack(window) {
|
||
// ORTC has replaceTrack -- https://github.com/w3c/ortc/issues/614
|
||
if (window.RTCRtpSender && !('replaceTrack' in window.RTCRtpSender.prototype)) {
|
||
window.RTCRtpSender.prototype.replaceTrack = window.RTCRtpSender.prototype.setTrack;
|
||
}
|
||
}
|
||
|
||
},{"../utils":15,"./filtericeservers":8,"./getdisplaymedia":9,"./getusermedia":10,"rtcpeerconnection-shim":16}],8:[function(require,module,exports){
|
||
/*
|
||
* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
'use strict';
|
||
|
||
Object.defineProperty(exports, "__esModule", {
|
||
value: true
|
||
});
|
||
exports.filterIceServers = filterIceServers;
|
||
|
||
var _utils = require('../utils');
|
||
|
||
var utils = _interopRequireWildcard(_utils);
|
||
|
||
function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
|
||
|
||
// Edge does not like
|
||
// 1) stun: filtered after 14393 unless ?transport=udp is present
|
||
// 2) turn: that does not have all of turn:host:port?transport=udp
|
||
// 3) turn: with ipv6 addresses
|
||
// 4) turn: occurring muliple times
|
||
function filterIceServers(iceServers, edgeVersion) {
|
||
var hasTurn = false;
|
||
iceServers = JSON.parse(JSON.stringify(iceServers));
|
||
return iceServers.filter(function (server) {
|
||
if (server && (server.urls || server.url)) {
|
||
var urls = server.urls || server.url;
|
||
if (server.url && !server.urls) {
|
||
utils.deprecated('RTCIceServer.url', 'RTCIceServer.urls');
|
||
}
|
||
var isString = typeof urls === 'string';
|
||
if (isString) {
|
||
urls = [urls];
|
||
}
|
||
urls = urls.filter(function (url) {
|
||
// filter STUN unconditionally.
|
||
if (url.indexOf('stun:') === 0) {
|
||
return false;
|
||
}
|
||
|
||
var validTurn = url.startsWith('turn') && !url.startsWith('turn:[') && url.includes('transport=udp');
|
||
if (validTurn && !hasTurn) {
|
||
hasTurn = true;
|
||
return true;
|
||
}
|
||
return validTurn && !hasTurn;
|
||
});
|
||
|
||
delete server.url;
|
||
server.urls = isString ? urls[0] : urls;
|
||
return !!urls.length;
|
||
}
|
||
});
|
||
}
|
||
|
||
},{"../utils":15}],9:[function(require,module,exports){
|
||
/*
|
||
* Copyright (c) 2018 The adapter.js project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
'use strict';
|
||
|
||
Object.defineProperty(exports, "__esModule", {
|
||
value: true
|
||
});
|
||
exports.shimGetDisplayMedia = shimGetDisplayMedia;
|
||
function shimGetDisplayMedia(window) {
|
||
if (!('getDisplayMedia' in window.navigator)) {
|
||
return;
|
||
}
|
||
if (!window.navigator.mediaDevices) {
|
||
return;
|
||
}
|
||
if (window.navigator.mediaDevices && 'getDisplayMedia' in window.navigator.mediaDevices) {
|
||
return;
|
||
}
|
||
window.navigator.mediaDevices.getDisplayMedia = window.navigator.getDisplayMedia.bind(window.navigator.mediaDevices);
|
||
}
|
||
|
||
},{}],10:[function(require,module,exports){
|
||
/*
|
||
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
'use strict';
|
||
|
||
Object.defineProperty(exports, "__esModule", {
|
||
value: true
|
||
});
|
||
exports.shimGetUserMedia = shimGetUserMedia;
|
||
function shimGetUserMedia(window) {
|
||
var navigator = window && window.navigator;
|
||
|
||
var shimError_ = function shimError_(e) {
|
||
return {
|
||
name: { PermissionDeniedError: 'NotAllowedError' }[e.name] || e.name,
|
||
message: e.message,
|
||
constraint: e.constraint,
|
||
toString: function toString() {
|
||
return this.name;
|
||
}
|
||
};
|
||
};
|
||
|
||
// getUserMedia error shim.
|
||
var origGetUserMedia = navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices);
|
||
navigator.mediaDevices.getUserMedia = function (c) {
|
||
return origGetUserMedia(c).catch(function (e) {
|
||
return Promise.reject(shimError_(e));
|
||
});
|
||
};
|
||
}
|
||
|
||
},{}],11:[function(require,module,exports){
|
||
/*
|
||
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
'use strict';
|
||
|
||
Object.defineProperty(exports, "__esModule", {
|
||
value: true
|
||
});
|
||
exports.shimGetDisplayMedia = exports.shimGetUserMedia = undefined;
|
||
|
||
var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
|
||
|
||
var _getusermedia = require('./getusermedia');
|
||
|
||
Object.defineProperty(exports, 'shimGetUserMedia', {
|
||
enumerable: true,
|
||
get: function get() {
|
||
return _getusermedia.shimGetUserMedia;
|
||
}
|
||
});
|
||
|
||
var _getdisplaymedia = require('./getdisplaymedia');
|
||
|
||
Object.defineProperty(exports, 'shimGetDisplayMedia', {
|
||
enumerable: true,
|
||
get: function get() {
|
||
return _getdisplaymedia.shimGetDisplayMedia;
|
||
}
|
||
});
|
||
exports.shimOnTrack = shimOnTrack;
|
||
exports.shimPeerConnection = shimPeerConnection;
|
||
exports.shimSenderGetStats = shimSenderGetStats;
|
||
exports.shimReceiverGetStats = shimReceiverGetStats;
|
||
exports.shimRemoveStream = shimRemoveStream;
|
||
exports.shimRTCDataChannel = shimRTCDataChannel;
|
||
|
||
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 shimOnTrack(window) {
|
||
if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCTrackEvent && 'receiver' in window.RTCTrackEvent.prototype && !('transceiver' in window.RTCTrackEvent.prototype)) {
|
||
Object.defineProperty(window.RTCTrackEvent.prototype, 'transceiver', {
|
||
get: function get() {
|
||
return { receiver: this.receiver };
|
||
}
|
||
});
|
||
}
|
||
}
|
||
|
||
function shimPeerConnection(window) {
|
||
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 (!window.RTCPeerConnection && window.mozRTCPeerConnection) {
|
||
// very basic support for old versions.
|
||
window.RTCPeerConnection = window.mozRTCPeerConnection;
|
||
}
|
||
|
||
// 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);
|
||
};
|
||
|
||
var modernStatsTypes = {
|
||
inboundrtp: 'inbound-rtp',
|
||
outboundrtp: 'outbound-rtp',
|
||
candidatepair: 'candidate-pair',
|
||
localcandidate: 'local-candidate',
|
||
remotecandidate: 'remote-candidate'
|
||
};
|
||
|
||
var nativeGetStats = window.RTCPeerConnection.prototype.getStats;
|
||
window.RTCPeerConnection.prototype.getStats = function (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);
|
||
};
|
||
}
|
||
|
||
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;
|
||
};
|
||
}
|
||
|
||
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());
|
||
};
|
||
}
|
||
|
||
function shimReceiverGetStats(window) {
|
||
if (!((typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && window.RTCPeerConnection && window.RTCRtpSender)) {
|
||
return;
|
||
}
|
||
if (window.RTCRtpSender && 'getStats' in window.RTCRtpReceiver.prototype) {
|
||
return;
|
||
}
|
||
var origGetReceivers = window.RTCPeerConnection.prototype.getReceivers;
|
||
if (origGetReceivers) {
|
||
window.RTCPeerConnection.prototype.getReceivers = function () {
|
||
var _this2 = this;
|
||
|
||
var receivers = origGetReceivers.apply(this, []);
|
||
receivers.forEach(function (receiver) {
|
||
return receiver._pc = _this2;
|
||
});
|
||
return receivers;
|
||
};
|
||
}
|
||
utils.wrapPeerConnectionEvent(window, 'track', function (e) {
|
||
e.receiver._pc = e.srcElement;
|
||
return e;
|
||
});
|
||
window.RTCRtpReceiver.prototype.getStats = function () {
|
||
return this._pc.getStats(this.track);
|
||
};
|
||
}
|
||
|
||
function shimRemoveStream(window) {
|
||
if (!window.RTCPeerConnection || 'removeStream' in window.RTCPeerConnection.prototype) {
|
||
return;
|
||
}
|
||
window.RTCPeerConnection.prototype.removeStream = function (stream) {
|
||
var _this3 = this;
|
||
|
||
utils.deprecated('removeStream', 'removeTrack');
|
||
this.getSenders().forEach(function (sender) {
|
||
if (sender.track && stream.getTracks().includes(sender.track)) {
|
||
_this3.removeTrack(sender);
|
||
}
|
||
});
|
||
};
|
||
}
|
||
|
||
function shimRTCDataChannel(window) {
|
||
// rename DataChannel to RTCDataChannel (native fix in FF60):
|
||
// https://bugzilla.mozilla.org/show_bug.cgi?id=1173851
|
||
if (window.DataChannel && !window.RTCDataChannel) {
|
||
window.RTCDataChannel = window.DataChannel;
|
||
}
|
||
}
|
||
|
||
},{"../utils":15,"./getdisplaymedia":12,"./getusermedia":13}],12:[function(require,module,exports){
|
||
/*
|
||
* Copyright (c) 2018 The adapter.js project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
'use strict';
|
||
|
||
Object.defineProperty(exports, "__esModule", {
|
||
value: true
|
||
});
|
||
exports.shimGetDisplayMedia = shimGetDisplayMedia;
|
||
function shimGetDisplayMedia(window, preferredMediaSource) {
|
||
if (window.navigator.mediaDevices && 'getDisplayMedia' in window.navigator.mediaDevices) {
|
||
return;
|
||
}
|
||
if (!window.navigator.mediaDevices) {
|
||
return;
|
||
}
|
||
window.navigator.mediaDevices.getDisplayMedia = function (constraints) {
|
||
if (!(constraints && constraints.video)) {
|
||
var err = new DOMException('getDisplayMedia without video ' + 'constraints is undefined');
|
||
err.name = 'NotFoundError';
|
||
// from https://heycam.github.io/webidl/#idl-DOMException-error-names
|
||
err.code = 8;
|
||
return Promise.reject(err);
|
||
}
|
||
if (constraints.video === true) {
|
||
constraints.video = { mediaSource: preferredMediaSource };
|
||
} else {
|
||
constraints.video.mediaSource = preferredMediaSource;
|
||
}
|
||
return window.navigator.mediaDevices.getUserMedia(constraints);
|
||
};
|
||
}
|
||
|
||
},{}],13:[function(require,module,exports){
|
||
/*
|
||
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
'use strict';
|
||
|
||
Object.defineProperty(exports, "__esModule", {
|
||
value: true
|
||
});
|
||
|
||
var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
|
||
|
||
exports.shimGetUserMedia = shimGetUserMedia;
|
||
|
||
var _utils = require('../utils');
|
||
|
||
var utils = _interopRequireWildcard(_utils);
|
||
|
||
function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
|
||
|
||
function shimGetUserMedia(window) {
|
||
var browserDetails = utils.detectBrowser(window);
|
||
var navigator = window && window.navigator;
|
||
var MediaStreamTrack = window && window.MediaStreamTrack;
|
||
|
||
navigator.getUserMedia = function (constraints, onSuccess, onError) {
|
||
// Replace Firefox 44+'s deprecation warning with unprefixed version.
|
||
utils.deprecated('navigator.getUserMedia', 'navigator.mediaDevices.getUserMedia');
|
||
navigator.mediaDevices.getUserMedia(constraints).then(onSuccess, onError);
|
||
};
|
||
|
||
if (!(browserDetails.version > 55 && 'autoGainControl' in navigator.mediaDevices.getSupportedConstraints())) {
|
||
var remap = function remap(obj, a, b) {
|
||
if (a in obj && !(b in obj)) {
|
||
obj[b] = obj[a];
|
||
delete obj[a];
|
||
}
|
||
};
|
||
|
||
var nativeGetUserMedia = navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices);
|
||
navigator.mediaDevices.getUserMedia = function (c) {
|
||
if ((typeof c === 'undefined' ? 'undefined' : _typeof(c)) === 'object' && _typeof(c.audio) === 'object') {
|
||
c = JSON.parse(JSON.stringify(c));
|
||
remap(c.audio, 'autoGainControl', 'mozAutoGainControl');
|
||
remap(c.audio, 'noiseSuppression', 'mozNoiseSuppression');
|
||
}
|
||
return nativeGetUserMedia(c);
|
||
};
|
||
|
||
if (MediaStreamTrack && MediaStreamTrack.prototype.getSettings) {
|
||
var nativeGetSettings = MediaStreamTrack.prototype.getSettings;
|
||
MediaStreamTrack.prototype.getSettings = function () {
|
||
var obj = nativeGetSettings.apply(this, arguments);
|
||
remap(obj, 'mozAutoGainControl', 'autoGainControl');
|
||
remap(obj, 'mozNoiseSuppression', 'noiseSuppression');
|
||
return obj;
|
||
};
|
||
}
|
||
|
||
if (MediaStreamTrack && MediaStreamTrack.prototype.applyConstraints) {
|
||
var nativeApplyConstraints = MediaStreamTrack.prototype.applyConstraints;
|
||
MediaStreamTrack.prototype.applyConstraints = function (c) {
|
||
if (this.kind === 'audio' && (typeof c === 'undefined' ? 'undefined' : _typeof(c)) === 'object') {
|
||
c = JSON.parse(JSON.stringify(c));
|
||
remap(c, 'autoGainControl', 'mozAutoGainControl');
|
||
remap(c, 'noiseSuppression', 'mozNoiseSuppression');
|
||
}
|
||
return nativeApplyConstraints.apply(this, [c]);
|
||
};
|
||
}
|
||
}
|
||
}
|
||
|
||
},{"../utils":15}],14:[function(require,module,exports){
|
||
/*
|
||
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
'use strict';
|
||
|
||
Object.defineProperty(exports, "__esModule", {
|
||
value: true
|
||
});
|
||
|
||
var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
|
||
|
||
exports.shimLocalStreamsAPI = shimLocalStreamsAPI;
|
||
exports.shimRemoteStreamsAPI = shimRemoteStreamsAPI;
|
||
exports.shimCallbacksAPI = shimCallbacksAPI;
|
||
exports.shimGetUserMedia = shimGetUserMedia;
|
||
exports.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;
|
||
|
||
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);
|
||
});
|
||
};
|
||
|
||
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;
|
||
|
||
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);
|
||
}
|
||
});
|
||
};
|
||
}
|
||
}
|
||
|
||
function shimRemoteStreamsAPI(window) {
|
||
if ((typeof window === 'undefined' ? 'undefined' : _typeof(window)) !== 'object' || !window.RTCPeerConnection) {
|
||
return;
|
||
}
|
||
if (!('getRemoteStreams' in window.RTCPeerConnection.prototype)) {
|
||
window.RTCPeerConnection.prototype.getRemoteStreams = function () {
|
||
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;
|
||
|
||
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);
|
||
};
|
||
}
|
||
}
|
||
|
||
function shimCallbacksAPI(window) {
|
||
if ((typeof window === 'undefined' ? 'undefined' : _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();
|
||
};
|
||
|
||
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();
|
||
};
|
||
|
||
var withCallback = function withCallback(description, successCallback, failureCallback) {
|
||
var promise = setLocalDescription.apply(this, [description]);
|
||
if (!failureCallback) {
|
||
return promise;
|
||
}
|
||
promise.then(successCallback, failureCallback);
|
||
return Promise.resolve();
|
||
};
|
||
prototype.setLocalDescription = withCallback;
|
||
|
||
withCallback = function withCallback(description, successCallback, failureCallback) {
|
||
var promise = setRemoteDescription.apply(this, [description]);
|
||
if (!failureCallback) {
|
||
return promise;
|
||
}
|
||
promise.then(successCallback, failureCallback);
|
||
return Promise.resolve();
|
||
};
|
||
prototype.setRemoteDescription = withCallback;
|
||
|
||
withCallback = function withCallback(candidate, successCallback, failureCallback) {
|
||
var promise = addIceCandidate.apply(this, [candidate]);
|
||
if (!failureCallback) {
|
||
return promise;
|
||
}
|
||
promise.then(successCallback, failureCallback);
|
||
return Promise.resolve();
|
||
};
|
||
prototype.addIceCandidate = withCallback;
|
||
}
|
||
|
||
function shimGetUserMedia(window) {
|
||
var navigator = window && window.navigator;
|
||
|
||
if (!navigator.getUserMedia && navigator.mediaDevices && navigator.mediaDevices.getUserMedia) {
|
||
navigator.getUserMedia = function (constraints, cb, errcb) {
|
||
navigator.mediaDevices.getUserMedia(constraints).then(cb, errcb);
|
||
}.bind(navigator);
|
||
}
|
||
}
|
||
|
||
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;
|
||
}
|
||
});
|
||
}
|
||
}
|
||
|
||
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 };
|
||
}
|
||
});
|
||
}
|
||
}
|
||
|
||
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');
|
||
}
|
||
|
||
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);
|
||
};
|
||
}
|
||
|
||
},{"../utils":15}],15:[function(require,module,exports){
|
||
/*
|
||
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
'use strict';
|
||
|
||
Object.defineProperty(exports, "__esModule", {
|
||
value: true
|
||
});
|
||
|
||
var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
|
||
|
||
exports.extractVersion = extractVersion;
|
||
exports.wrapPeerConnectionEvent = wrapPeerConnectionEvent;
|
||
exports.disableLog = disableLog;
|
||
exports.disableWarnings = disableWarnings;
|
||
exports.log = log;
|
||
exports.deprecated = deprecated;
|
||
exports.detectBrowser = detectBrowser;
|
||
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 };
|
||
|
||
// 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;
|
||
}
|
||
|
||
},{}],16:[function(require,module,exports){
|
||
/*
|
||
* Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
'use strict';
|
||
|
||
var SDPUtils = require('sdp');
|
||
|
||
function fixStatsType(stat) {
|
||
return {
|
||
inboundrtp: 'inbound-rtp',
|
||
outboundrtp: 'outbound-rtp',
|
||
candidatepair: 'candidate-pair',
|
||
localcandidate: 'local-candidate',
|
||
remotecandidate: 'remote-candidate'
|
||
}[stat.type] || stat.type;
|
||
}
|
||
|
||
function writeMediaSection(transceiver, caps, type, stream, dtlsRole) {
|
||
var sdp = SDPUtils.writeRtpDescription(transceiver.kind, caps);
|
||
|
||
// Map ICE parameters (ufrag, pwd) to SDP.
|
||
sdp += SDPUtils.writeIceParameters(
|
||
transceiver.iceGatherer.getLocalParameters());
|
||
|
||
// Map DTLS parameters to SDP.
|
||
sdp += SDPUtils.writeDtlsParameters(
|
||
transceiver.dtlsTransport.getLocalParameters(),
|
||
type === 'offer' ? 'actpass' : dtlsRole || 'active');
|
||
|
||
sdp += 'a=mid:' + transceiver.mid + '\r\n';
|
||
|
||
if (transceiver.rtpSender && transceiver.rtpReceiver) {
|
||
sdp += 'a=sendrecv\r\n';
|
||
} else if (transceiver.rtpSender) {
|
||
sdp += 'a=sendonly\r\n';
|
||
} else if (transceiver.rtpReceiver) {
|
||
sdp += 'a=recvonly\r\n';
|
||
} else {
|
||
sdp += 'a=inactive\r\n';
|
||
}
|
||
|
||
if (transceiver.rtpSender) {
|
||
var trackId = transceiver.rtpSender._initialTrackId ||
|
||
transceiver.rtpSender.track.id;
|
||
transceiver.rtpSender._initialTrackId = trackId;
|
||
// spec.
|
||
var msid = 'msid:' + (stream ? stream.id : '-') + ' ' +
|
||
trackId + '\r\n';
|
||
sdp += 'a=' + msid;
|
||
// for Chrome. Legacy should no longer be required.
|
||
sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
|
||
' ' + msid;
|
||
|
||
// RTX
|
||
if (transceiver.sendEncodingParameters[0].rtx) {
|
||
sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
|
||
' ' + msid;
|
||
sdp += 'a=ssrc-group:FID ' +
|
||
transceiver.sendEncodingParameters[0].ssrc + ' ' +
|
||
transceiver.sendEncodingParameters[0].rtx.ssrc +
|
||
'\r\n';
|
||
}
|
||
}
|
||
// FIXME: this should be written by writeRtpDescription.
|
||
sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
|
||
' cname:' + SDPUtils.localCName + '\r\n';
|
||
if (transceiver.rtpSender && transceiver.sendEncodingParameters[0].rtx) {
|
||
sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
|
||
' cname:' + SDPUtils.localCName + '\r\n';
|
||
}
|
||
return sdp;
|
||
}
|
||
|
||
// Edge does not like
|
||
// 1) stun: filtered after 14393 unless ?transport=udp is present
|
||
// 2) turn: that does not have all of turn:host:port?transport=udp
|
||
// 3) turn: with ipv6 addresses
|
||
// 4) turn: occurring muliple times
|
||
function filterIceServers(iceServers, edgeVersion) {
|
||
var hasTurn = false;
|
||
iceServers = JSON.parse(JSON.stringify(iceServers));
|
||
return iceServers.filter(function(server) {
|
||
if (server && (server.urls || server.url)) {
|
||
var urls = server.urls || server.url;
|
||
if (server.url && !server.urls) {
|
||
console.warn('RTCIceServer.url is deprecated! Use urls instead.');
|
||
}
|
||
var isString = typeof urls === 'string';
|
||
if (isString) {
|
||
urls = [urls];
|
||
}
|
||
urls = urls.filter(function(url) {
|
||
var validTurn = url.indexOf('turn:') === 0 &&
|
||
url.indexOf('transport=udp') !== -1 &&
|
||
url.indexOf('turn:[') === -1 &&
|
||
!hasTurn;
|
||
|
||
if (validTurn) {
|
||
hasTurn = true;
|
||
return true;
|
||
}
|
||
return url.indexOf('stun:') === 0 && edgeVersion >= 14393 &&
|
||
url.indexOf('?transport=udp') === -1;
|
||
});
|
||
|
||
delete server.url;
|
||
server.urls = isString ? urls[0] : urls;
|
||
return !!urls.length;
|
||
}
|
||
});
|
||
}
|
||
|
||
// Determines the intersection of local and remote capabilities.
|
||
function getCommonCapabilities(localCapabilities, remoteCapabilities) {
|
||
var commonCapabilities = {
|
||
codecs: [],
|
||
headerExtensions: [],
|
||
fecMechanisms: []
|
||
};
|
||
|
||
var findCodecByPayloadType = function(pt, codecs) {
|
||
pt = parseInt(pt, 10);
|
||
for (var i = 0; i < codecs.length; i++) {
|
||
if (codecs[i].payloadType === pt ||
|
||
codecs[i].preferredPayloadType === pt) {
|
||
return codecs[i];
|
||
}
|
||
}
|
||
};
|
||
|
||
var rtxCapabilityMatches = function(lRtx, rRtx, lCodecs, rCodecs) {
|
||
var lCodec = findCodecByPayloadType(lRtx.parameters.apt, lCodecs);
|
||
var rCodec = findCodecByPayloadType(rRtx.parameters.apt, rCodecs);
|
||
return lCodec && rCodec &&
|
||
lCodec.name.toLowerCase() === rCodec.name.toLowerCase();
|
||
};
|
||
|
||
localCapabilities.codecs.forEach(function(lCodec) {
|
||
for (var i = 0; i < remoteCapabilities.codecs.length; i++) {
|
||
var rCodec = remoteCapabilities.codecs[i];
|
||
if (lCodec.name.toLowerCase() === rCodec.name.toLowerCase() &&
|
||
lCodec.clockRate === rCodec.clockRate) {
|
||
if (lCodec.name.toLowerCase() === 'rtx' &&
|
||
lCodec.parameters && rCodec.parameters.apt) {
|
||
// for RTX we need to find the local rtx that has a apt
|
||
// which points to the same local codec as the remote one.
|
||
if (!rtxCapabilityMatches(lCodec, rCodec,
|
||
localCapabilities.codecs, remoteCapabilities.codecs)) {
|
||
continue;
|
||
}
|
||
}
|
||
rCodec = JSON.parse(JSON.stringify(rCodec)); // deepcopy
|
||
// number of channels is the highest common number of channels
|
||
rCodec.numChannels = Math.min(lCodec.numChannels,
|
||
rCodec.numChannels);
|
||
// push rCodec so we reply with offerer payload type
|
||
commonCapabilities.codecs.push(rCodec);
|
||
|
||
// determine common feedback mechanisms
|
||
rCodec.rtcpFeedback = rCodec.rtcpFeedback.filter(function(fb) {
|
||
for (var j = 0; j < lCodec.rtcpFeedback.length; j++) {
|
||
if (lCodec.rtcpFeedback[j].type === fb.type &&
|
||
lCodec.rtcpFeedback[j].parameter === fb.parameter) {
|
||
return true;
|
||
}
|
||
}
|
||
return false;
|
||
});
|
||
// FIXME: also need to determine .parameters
|
||
// see https://github.com/openpeer/ortc/issues/569
|
||
break;
|
||
}
|
||
}
|
||
});
|
||
|
||
localCapabilities.headerExtensions.forEach(function(lHeaderExtension) {
|
||
for (var i = 0; i < remoteCapabilities.headerExtensions.length;
|
||
i++) {
|
||
var rHeaderExtension = remoteCapabilities.headerExtensions[i];
|
||
if (lHeaderExtension.uri === rHeaderExtension.uri) {
|
||
commonCapabilities.headerExtensions.push(rHeaderExtension);
|
||
break;
|
||
}
|
||
}
|
||
});
|
||
|
||
// FIXME: fecMechanisms
|
||
return commonCapabilities;
|
||
}
|
||
|
||
// is action=setLocalDescription with type allowed in signalingState
|
||
function isActionAllowedInSignalingState(action, type, signalingState) {
|
||
return {
|
||
offer: {
|
||
setLocalDescription: ['stable', 'have-local-offer'],
|
||
setRemoteDescription: ['stable', 'have-remote-offer']
|
||
},
|
||
answer: {
|
||
setLocalDescription: ['have-remote-offer', 'have-local-pranswer'],
|
||
setRemoteDescription: ['have-local-offer', 'have-remote-pranswer']
|
||
}
|
||
}[type][action].indexOf(signalingState) !== -1;
|
||
}
|
||
|
||
function maybeAddCandidate(iceTransport, candidate) {
|
||
// Edge's internal representation adds some fields therefore
|
||
// not all 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);
|
||
}
|
||
}
|
||
|
||
// Calculate intersection of capabilities.
|
||
var params = getCommonCapabilities(localCapabilities,
|
||
remoteCapabilities);
|
||
|
||
// Start the RTCRtpSender. The RTCRtpReceiver for this
|
||
// transceiver has already been started in setRemoteDescription.
|
||
pc._transceive(transceiver,
|
||
params.codecs.length > 0,
|
||
false);
|
||
}
|
||
});
|
||
}
|
||
|
||
pc._localDescription = {
|
||
type: description.type,
|
||
sdp: description.sdp
|
||
};
|
||
if (description.type === 'offer') {
|
||
pc._updateSignalingState('have-local-offer');
|
||
} else {
|
||
pc._updateSignalingState('stable');
|
||
}
|
||
|
||
return Promise.resolve();
|
||
};
|
||
|
||
RTCPeerConnection.prototype.setRemoteDescription = function(description) {
|
||
var pc = this;
|
||
|
||
// Note: pranswer is not supported.
|
||
if (['offer', 'answer'].indexOf(description.type) === -1) {
|
||
return Promise.reject(makeError('TypeError',
|
||
'Unsupported type "' + description.type + '"'));
|
||
}
|
||
|
||
if (!isActionAllowedInSignalingState('setRemoteDescription',
|
||
description.type, pc.signalingState) || pc._isClosed) {
|
||
return Promise.reject(makeError('InvalidStateError',
|
||
'Can not set remote ' + description.type +
|
||
' in state ' + pc.signalingState));
|
||
}
|
||
|
||
var streams = {};
|
||
pc.remoteStreams.forEach(function(stream) {
|
||
streams[stream.id] = stream;
|
||
});
|
||
var receiverList = [];
|
||
var sections = SDPUtils.splitSections(description.sdp);
|
||
var sessionpart = sections.shift();
|
||
var isIceLite = SDPUtils.matchPrefix(sessionpart,
|
||
'a=ice-lite').length > 0;
|
||
var usingBundle = SDPUtils.matchPrefix(sessionpart,
|
||
'a=group:BUNDLE ').length > 0;
|
||
pc.usingBundle = usingBundle;
|
||
var iceOptions = SDPUtils.matchPrefix(sessionpart,
|
||
'a=ice-options:')[0];
|
||
if (iceOptions) {
|
||
pc.canTrickleIceCandidates = iceOptions.substr(14).split(' ')
|
||
.indexOf('trickle') >= 0;
|
||
} else {
|
||
pc.canTrickleIceCandidates = false;
|
||
}
|
||
|
||
sections.forEach(function(mediaSection, sdpMLineIndex) {
|
||
var lines = SDPUtils.splitLines(mediaSection);
|
||
var kind = SDPUtils.getKind(mediaSection);
|
||
// treat bundle-only as not-rejected.
|
||
var rejected = SDPUtils.isRejected(mediaSection) &&
|
||
SDPUtils.matchPrefix(mediaSection, 'a=bundle-only').length === 0;
|
||
var protocol = lines[0].substr(2).split(' ')[2];
|
||
|
||
var direction = SDPUtils.getDirection(mediaSection, sessionpart);
|
||
var remoteMsid = SDPUtils.parseMsid(mediaSection);
|
||
|
||
var mid = SDPUtils.getMid(mediaSection) || SDPUtils.generateIdentifier();
|
||
|
||
// Reject datachannels which are not implemented yet.
|
||
if (rejected || (kind === 'application' && (protocol === 'DTLS/SCTP' ||
|
||
protocol === 'UDP/DTLS/SCTP'))) {
|
||
// TODO: this is dangerous in the case where a non-rejected m-line
|
||
// becomes rejected.
|
||
pc.transceivers[sdpMLineIndex] = {
|
||
mid: mid,
|
||
kind: kind,
|
||
protocol: protocol,
|
||
rejected: true
|
||
};
|
||
return;
|
||
}
|
||
|
||
if (!rejected && pc.transceivers[sdpMLineIndex] &&
|
||
pc.transceivers[sdpMLineIndex].rejected) {
|
||
// recycle a rejected transceiver.
|
||
pc.transceivers[sdpMLineIndex] = pc._createTransceiver(kind, true);
|
||
}
|
||
|
||
var transceiver;
|
||
var iceGatherer;
|
||
var iceTransport;
|
||
var dtlsTransport;
|
||
var rtpReceiver;
|
||
var sendEncodingParameters;
|
||
var recvEncodingParameters;
|
||
var localCapabilities;
|
||
|
||
var track;
|
||
// FIXME: ensure the mediaSection has rtcp-mux set.
|
||
var remoteCapabilities = SDPUtils.parseRtpParameters(mediaSection);
|
||
var remoteIceParameters;
|
||
var remoteDtlsParameters;
|
||
if (!rejected) {
|
||
remoteIceParameters = SDPUtils.getIceParameters(mediaSection,
|
||
sessionpart);
|
||
remoteDtlsParameters = SDPUtils.getDtlsParameters(mediaSection,
|
||
sessionpart);
|
||
remoteDtlsParameters.role = 'client';
|
||
}
|
||
recvEncodingParameters =
|
||
SDPUtils.parseRtpEncodingParameters(mediaSection);
|
||
|
||
var rtcpParameters = SDPUtils.parseRtcpParameters(mediaSection);
|
||
|
||
var isComplete = SDPUtils.matchPrefix(mediaSection,
|
||
'a=end-of-candidates', sessionpart).length > 0;
|
||
var cands = SDPUtils.matchPrefix(mediaSection, 'a=candidate:')
|
||
.map(function(cand) {
|
||
return SDPUtils.parseCandidate(cand);
|
||
})
|
||
.filter(function(cand) {
|
||
return cand.component === 1;
|
||
});
|
||
|
||
// Check if we can use BUNDLE and dispose transports.
|
||
if ((description.type === 'offer' || description.type === 'answer') &&
|
||
!rejected && usingBundle && sdpMLineIndex > 0 &&
|
||
pc.transceivers[sdpMLineIndex]) {
|
||
pc._disposeIceAndDtlsTransports(sdpMLineIndex);
|
||
pc.transceivers[sdpMLineIndex].iceGatherer =
|
||
pc.transceivers[0].iceGatherer;
|
||
pc.transceivers[sdpMLineIndex].iceTransport =
|
||
pc.transceivers[0].iceTransport;
|
||
pc.transceivers[sdpMLineIndex].dtlsTransport =
|
||
pc.transceivers[0].dtlsTransport;
|
||
if (pc.transceivers[sdpMLineIndex].rtpSender) {
|
||
pc.transceivers[sdpMLineIndex].rtpSender.setTransport(
|
||
pc.transceivers[0].dtlsTransport);
|
||
}
|
||
if (pc.transceivers[sdpMLineIndex].rtpReceiver) {
|
||
pc.transceivers[sdpMLineIndex].rtpReceiver.setTransport(
|
||
pc.transceivers[0].dtlsTransport);
|
||
}
|
||
}
|
||
if (description.type === 'offer' && !rejected) {
|
||
transceiver = pc.transceivers[sdpMLineIndex] ||
|
||
pc._createTransceiver(kind);
|
||
transceiver.mid = mid;
|
||
|
||
if (!transceiver.iceGatherer) {
|
||
transceiver.iceGatherer = pc._createIceGatherer(sdpMLineIndex,
|
||
usingBundle);
|
||
}
|
||
|
||
if (cands.length && transceiver.iceTransport.state === 'new') {
|
||
if (isComplete && (!usingBundle || sdpMLineIndex === 0)) {
|
||
transceiver.iceTransport.setRemoteCandidates(cands);
|
||
} else {
|
||
cands.forEach(function(candidate) {
|
||
maybeAddCandidate(transceiver.iceTransport, candidate);
|
||
});
|
||
}
|
||
}
|
||
|
||
localCapabilities = window.RTCRtpReceiver.getCapabilities(kind);
|
||
|
||
// filter RTX until additional stuff needed for RTX is implemented
|
||
// in adapter.js
|
||
if (edgeVersion < 15019) {
|
||
localCapabilities.codecs = localCapabilities.codecs.filter(
|
||
function(codec) {
|
||
return codec.name !== 'rtx';
|
||
});
|
||
}
|
||
|
||
sendEncodingParameters = transceiver.sendEncodingParameters || [{
|
||
ssrc: (2 * sdpMLineIndex + 2) * 1001
|
||
}];
|
||
|
||
// TODO: rewrite to use http://w3c.github.io/webrtc-pc/#set-associated-remote-streams
|
||
var isNewTrack = false;
|
||
if (direction === 'sendrecv' || direction === 'sendonly') {
|
||
isNewTrack = !transceiver.rtpReceiver;
|
||
rtpReceiver = transceiver.rtpReceiver ||
|
||
new window.RTCRtpReceiver(transceiver.dtlsTransport, kind);
|
||
|
||
if (isNewTrack) {
|
||
var stream;
|
||
track = rtpReceiver.track;
|
||
// FIXME: does not work with Plan B.
|
||
if (remoteMsid && remoteMsid.stream === '-') {
|
||
// no-op. a stream id of '-' means: no associated stream.
|
||
} else if (remoteMsid) {
|
||
if (!streams[remoteMsid.stream]) {
|
||
streams[remoteMsid.stream] = new window.MediaStream();
|
||
Object.defineProperty(streams[remoteMsid.stream], 'id', {
|
||
get: function() {
|
||
return remoteMsid.stream;
|
||
}
|
||
});
|
||
}
|
||
Object.defineProperty(track, 'id', {
|
||
get: function() {
|
||
return remoteMsid.track;
|
||
}
|
||
});
|
||
stream = streams[remoteMsid.stream];
|
||
} else {
|
||
if (!streams.default) {
|
||
streams.default = new window.MediaStream();
|
||
}
|
||
stream = streams.default;
|
||
}
|
||
if (stream) {
|
||
addTrackToStreamAndFireEvent(track, stream);
|
||
transceiver.associatedRemoteMediaStreams.push(stream);
|
||
}
|
||
receiverList.push([track, rtpReceiver, stream]);
|
||
}
|
||
} else if (transceiver.rtpReceiver && transceiver.rtpReceiver.track) {
|
||
transceiver.associatedRemoteMediaStreams.forEach(function(s) {
|
||
var nativeTrack = s.getTracks().find(function(t) {
|
||
return t.id === transceiver.rtpReceiver.track.id;
|
||
});
|
||
if (nativeTrack) {
|
||
removeTrackFromStreamAndFireEvent(nativeTrack, s);
|
||
}
|
||
});
|
||
transceiver.associatedRemoteMediaStreams = [];
|
||
}
|
||
|
||
transceiver.localCapabilities = localCapabilities;
|
||
transceiver.remoteCapabilities = remoteCapabilities;
|
||
transceiver.rtpReceiver = rtpReceiver;
|
||
transceiver.rtcpParameters = rtcpParameters;
|
||
transceiver.sendEncodingParameters = sendEncodingParameters;
|
||
transceiver.recvEncodingParameters = recvEncodingParameters;
|
||
|
||
// Start the RTCRtpReceiver now. The RTPSender is started in
|
||
// setLocalDescription.
|
||
pc._transceive(pc.transceivers[sdpMLineIndex],
|
||
false,
|
||
isNewTrack);
|
||
} else if (description.type === 'answer' && !rejected) {
|
||
transceiver = pc.transceivers[sdpMLineIndex];
|
||
iceGatherer = transceiver.iceGatherer;
|
||
iceTransport = transceiver.iceTransport;
|
||
dtlsTransport = transceiver.dtlsTransport;
|
||
rtpReceiver = transceiver.rtpReceiver;
|
||
sendEncodingParameters = transceiver.sendEncodingParameters;
|
||
localCapabilities = transceiver.localCapabilities;
|
||
|
||
pc.transceivers[sdpMLineIndex].recvEncodingParameters =
|
||
recvEncodingParameters;
|
||
pc.transceivers[sdpMLineIndex].remoteCapabilities =
|
||
remoteCapabilities;
|
||
pc.transceivers[sdpMLineIndex].rtcpParameters = rtcpParameters;
|
||
|
||
if (cands.length && iceTransport.state === 'new') {
|
||
if ((isIceLite || isComplete) &&
|
||
(!usingBundle || sdpMLineIndex === 0)) {
|
||
iceTransport.setRemoteCandidates(cands);
|
||
} else {
|
||
cands.forEach(function(candidate) {
|
||
maybeAddCandidate(transceiver.iceTransport, candidate);
|
||
});
|
||
}
|
||
}
|
||
|
||
if (!usingBundle || sdpMLineIndex === 0) {
|
||
if (iceTransport.state === 'new') {
|
||
iceTransport.start(iceGatherer, remoteIceParameters,
|
||
'controlling');
|
||
}
|
||
if (dtlsTransport.state === 'new') {
|
||
dtlsTransport.start(remoteDtlsParameters);
|
||
}
|
||
}
|
||
|
||
// If the offer contained RTX but the answer did not,
|
||
// remove RTX from sendEncodingParameters.
|
||
var commonCapabilities = getCommonCapabilities(
|
||
transceiver.localCapabilities,
|
||
transceiver.remoteCapabilities);
|
||
|
||
var hasRtx = commonCapabilities.codecs.filter(function(c) {
|
||
return c.name.toLowerCase() === 'rtx';
|
||
}).length;
|
||
if (!hasRtx && transceiver.sendEncodingParameters[0].rtx) {
|
||
delete transceiver.sendEncodingParameters[0].rtx;
|
||
}
|
||
|
||
pc._transceive(transceiver,
|
||
direction === 'sendrecv' || direction === 'recvonly',
|
||
direction === 'sendrecv' || direction === 'sendonly');
|
||
|
||
// TODO: rewrite to use http://w3c.github.io/webrtc-pc/#set-associated-remote-streams
|
||
if (rtpReceiver &&
|
||
(direction === 'sendrecv' || direction === 'sendonly')) {
|
||
track = rtpReceiver.track;
|
||
if (remoteMsid) {
|
||
if (!streams[remoteMsid.stream]) {
|
||
streams[remoteMsid.stream] = new window.MediaStream();
|
||
}
|
||
addTrackToStreamAndFireEvent(track, streams[remoteMsid.stream]);
|
||
receiverList.push([track, rtpReceiver, streams[remoteMsid.stream]]);
|
||
} else {
|
||
if (!streams.default) {
|
||
streams.default = new window.MediaStream();
|
||
}
|
||
addTrackToStreamAndFireEvent(track, streams.default);
|
||
receiverList.push([track, rtpReceiver, streams.default]);
|
||
}
|
||
} else {
|
||
// FIXME: actually the receiver should be created later.
|
||
delete transceiver.rtpReceiver;
|
||
}
|
||
}
|
||
});
|
||
|
||
if (pc._dtlsRole === undefined) {
|
||
pc._dtlsRole = description.type === 'offer' ? 'active' : 'passive';
|
||
}
|
||
|
||
pc._remoteDescription = {
|
||
type: description.type,
|
||
sdp: description.sdp
|
||
};
|
||
if (description.type === 'offer') {
|
||
pc._updateSignalingState('have-remote-offer');
|
||
} else {
|
||
pc._updateSignalingState('stable');
|
||
}
|
||
Object.keys(streams).forEach(function(sid) {
|
||
var stream = streams[sid];
|
||
if (stream.getTracks().length) {
|
||
if (pc.remoteStreams.indexOf(stream) === -1) {
|
||
pc.remoteStreams.push(stream);
|
||
var event = new Event('addstream');
|
||
event.stream = stream;
|
||
window.setTimeout(function() {
|
||
pc._dispatchEvent('addstream', event);
|
||
});
|
||
}
|
||
|
||
receiverList.forEach(function(item) {
|
||
var track = item[0];
|
||
var receiver = item[1];
|
||
if (stream.id !== item[2].id) {
|
||
return;
|
||
}
|
||
fireAddTrack(pc, track, receiver, [stream]);
|
||
});
|
||
}
|
||
});
|
||
receiverList.forEach(function(item) {
|
||
if (item[2]) {
|
||
return;
|
||
}
|
||
fireAddTrack(pc, item[0], item[1], []);
|
||
});
|
||
|
||
// check whether addIceCandidate({}) was called within four seconds after
|
||
// setRemoteDescription.
|
||
window.setTimeout(function() {
|
||
if (!(pc && pc.transceivers)) {
|
||
return;
|
||
}
|
||
pc.transceivers.forEach(function(transceiver) {
|
||
if (transceiver.iceTransport &&
|
||
transceiver.iceTransport.state === 'new' &&
|
||
transceiver.iceTransport.getRemoteCandidates().length > 0) {
|
||
console.warn('Timeout for addRemoteCandidate. Consider sending ' +
|
||
'an end-of-candidates notification');
|
||
transceiver.iceTransport.addRemoteCandidate({});
|
||
}
|
||
});
|
||
}, 4000);
|
||
|
||
return Promise.resolve();
|
||
};
|
||
|
||
RTCPeerConnection.prototype.close = function() {
|
||
this.transceivers.forEach(function(transceiver) {
|
||
/* not yet
|
||
if (transceiver.iceGatherer) {
|
||
transceiver.iceGatherer.close();
|
||
}
|
||
*/
|
||
if (transceiver.iceTransport) {
|
||
transceiver.iceTransport.stop();
|
||
}
|
||
if (transceiver.dtlsTransport) {
|
||
transceiver.dtlsTransport.stop();
|
||
}
|
||
if (transceiver.rtpSender) {
|
||
transceiver.rtpSender.stop();
|
||
}
|
||
if (transceiver.rtpReceiver) {
|
||
transceiver.rtpReceiver.stop();
|
||
}
|
||
});
|
||
// FIXME: clean up tracks, local streams, remote streams, etc
|
||
this._isClosed = true;
|
||
this._updateSignalingState('closed');
|
||
};
|
||
|
||
// Update the signaling state.
|
||
RTCPeerConnection.prototype._updateSignalingState = function(newState) {
|
||
this.signalingState = newState;
|
||
var event = new Event('signalingstatechange');
|
||
this._dispatchEvent('signalingstatechange', event);
|
||
};
|
||
|
||
// Determine whether to fire the negotiationneeded event.
|
||
RTCPeerConnection.prototype._maybeFireNegotiationNeeded = function() {
|
||
var pc = this;
|
||
if (this.signalingState !== 'stable' || this.needNegotiation === true) {
|
||
return;
|
||
}
|
||
this.needNegotiation = true;
|
||
window.setTimeout(function() {
|
||
if (pc.needNegotiation) {
|
||
pc.needNegotiation = false;
|
||
var event = new Event('negotiationneeded');
|
||
pc._dispatchEvent('negotiationneeded', event);
|
||
}
|
||
}, 0);
|
||
};
|
||
|
||
// Update the ice connection state.
|
||
RTCPeerConnection.prototype._updateIceConnectionState = function() {
|
||
var newState;
|
||
var states = {
|
||
'new': 0,
|
||
closed: 0,
|
||
checking: 0,
|
||
connected: 0,
|
||
completed: 0,
|
||
disconnected: 0,
|
||
failed: 0
|
||
};
|
||
this.transceivers.forEach(function(transceiver) {
|
||
if (transceiver.iceTransport && !transceiver.rejected) {
|
||
states[transceiver.iceTransport.state]++;
|
||
}
|
||
});
|
||
|
||
newState = 'new';
|
||
if (states.failed > 0) {
|
||
newState = 'failed';
|
||
} else if (states.checking > 0) {
|
||
newState = 'checking';
|
||
} else if (states.disconnected > 0) {
|
||
newState = 'disconnected';
|
||
} else if (states.new > 0) {
|
||
newState = 'new';
|
||
} else if (states.connected > 0) {
|
||
newState = 'connected';
|
||
} else if (states.completed > 0) {
|
||
newState = 'completed';
|
||
}
|
||
|
||
if (newState !== this.iceConnectionState) {
|
||
this.iceConnectionState = newState;
|
||
var event = new Event('iceconnectionstatechange');
|
||
this._dispatchEvent('iceconnectionstatechange', event);
|
||
}
|
||
};
|
||
|
||
// Update the connection state.
|
||
RTCPeerConnection.prototype._updateConnectionState = function() {
|
||
var newState;
|
||
var states = {
|
||
'new': 0,
|
||
closed: 0,
|
||
connecting: 0,
|
||
connected: 0,
|
||
completed: 0,
|
||
disconnected: 0,
|
||
failed: 0
|
||
};
|
||
this.transceivers.forEach(function(transceiver) {
|
||
if (transceiver.iceTransport && transceiver.dtlsTransport &&
|
||
!transceiver.rejected) {
|
||
states[transceiver.iceTransport.state]++;
|
||
states[transceiver.dtlsTransport.state]++;
|
||
}
|
||
});
|
||
// ICETransport.completed and connected are the same for this purpose.
|
||
states.connected += states.completed;
|
||
|
||
newState = 'new';
|
||
if (states.failed > 0) {
|
||
newState = 'failed';
|
||
} else if (states.connecting > 0) {
|
||
newState = 'connecting';
|
||
} else if (states.disconnected > 0) {
|
||
newState = 'disconnected';
|
||
} else if (states.new > 0) {
|
||
newState = 'new';
|
||
} else if (states.connected > 0) {
|
||
newState = 'connected';
|
||
}
|
||
|
||
if (newState !== this.connectionState) {
|
||
this.connectionState = newState;
|
||
var event = new Event('connectionstatechange');
|
||
this._dispatchEvent('connectionstatechange', event);
|
||
}
|
||
};
|
||
|
||
RTCPeerConnection.prototype.createOffer = function() {
|
||
var pc = this;
|
||
|
||
if (pc._isClosed) {
|
||
return Promise.reject(makeError('InvalidStateError',
|
||
'Can not call createOffer after close'));
|
||
}
|
||
|
||
var numAudioTracks = pc.transceivers.filter(function(t) {
|
||
return t.kind === 'audio';
|
||
}).length;
|
||
var numVideoTracks = pc.transceivers.filter(function(t) {
|
||
return t.kind === 'video';
|
||
}).length;
|
||
|
||
// Determine number of audio and video tracks we need to send/recv.
|
||
var offerOptions = arguments[0];
|
||
if (offerOptions) {
|
||
// Reject Chrome legacy constraints.
|
||
if (offerOptions.mandatory || offerOptions.optional) {
|
||
throw new TypeError(
|
||
'Legacy mandatory/optional constraints not supported.');
|
||
}
|
||
if (offerOptions.offerToReceiveAudio !== undefined) {
|
||
if (offerOptions.offerToReceiveAudio === true) {
|
||
numAudioTracks = 1;
|
||
} else if (offerOptions.offerToReceiveAudio === false) {
|
||
numAudioTracks = 0;
|
||
} else {
|
||
numAudioTracks = offerOptions.offerToReceiveAudio;
|
||
}
|
||
}
|
||
if (offerOptions.offerToReceiveVideo !== undefined) {
|
||
if (offerOptions.offerToReceiveVideo === true) {
|
||
numVideoTracks = 1;
|
||
} else if (offerOptions.offerToReceiveVideo === false) {
|
||
numVideoTracks = 0;
|
||
} else {
|
||
numVideoTracks = offerOptions.offerToReceiveVideo;
|
||
}
|
||
}
|
||
}
|
||
|
||
pc.transceivers.forEach(function(transceiver) {
|
||
if (transceiver.kind === 'audio') {
|
||
numAudioTracks--;
|
||
if (numAudioTracks < 0) {
|
||
transceiver.wantReceive = false;
|
||
}
|
||
} else if (transceiver.kind === 'video') {
|
||
numVideoTracks--;
|
||
if (numVideoTracks < 0) {
|
||
transceiver.wantReceive = false;
|
||
}
|
||
}
|
||
});
|
||
|
||
// Create M-lines for recvonly streams.
|
||
while (numAudioTracks > 0 || numVideoTracks > 0) {
|
||
if (numAudioTracks > 0) {
|
||
pc._createTransceiver('audio');
|
||
numAudioTracks--;
|
||
}
|
||
if (numVideoTracks > 0) {
|
||
pc._createTransceiver('video');
|
||
numVideoTracks--;
|
||
}
|
||
}
|
||
|
||
var sdp = SDPUtils.writeSessionBoilerplate(pc._sdpSessionId,
|
||
pc._sdpSessionVersion++);
|
||
pc.transceivers.forEach(function(transceiver, sdpMLineIndex) {
|
||
// For each track, create an ice gatherer, ice transport,
|
||
// dtls transport, potentially rtpsender and rtpreceiver.
|
||
var track = transceiver.track;
|
||
var kind = transceiver.kind;
|
||
var mid = transceiver.mid || SDPUtils.generateIdentifier();
|
||
transceiver.mid = mid;
|
||
|
||
if (!transceiver.iceGatherer) {
|
||
transceiver.iceGatherer = pc._createIceGatherer(sdpMLineIndex,
|
||
pc.usingBundle);
|
||
}
|
||
|
||
var localCapabilities = window.RTCRtpSender.getCapabilities(kind);
|
||
// filter RTX until additional stuff needed for RTX is implemented
|
||
// in adapter.js
|
||
if (edgeVersion < 15019) {
|
||
localCapabilities.codecs = localCapabilities.codecs.filter(
|
||
function(codec) {
|
||
return codec.name !== 'rtx';
|
||
});
|
||
}
|
||
localCapabilities.codecs.forEach(function(codec) {
|
||
// work around https://bugs.chromium.org/p/webrtc/issues/detail?id=6552
|
||
// by adding level-asymmetry-allowed=1
|
||
if (codec.name === 'H264' &&
|
||
codec.parameters['level-asymmetry-allowed'] === undefined) {
|
||
codec.parameters['level-asymmetry-allowed'] = '1';
|
||
}
|
||
|
||
// for subsequent offers, we might have to re-use the payload
|
||
// type of the last offer.
|
||
if (transceiver.remoteCapabilities &&
|
||
transceiver.remoteCapabilities.codecs) {
|
||
transceiver.remoteCapabilities.codecs.forEach(function(remoteCodec) {
|
||
if (codec.name.toLowerCase() === remoteCodec.name.toLowerCase() &&
|
||
codec.clockRate === remoteCodec.clockRate) {
|
||
codec.preferredPayloadType = remoteCodec.payloadType;
|
||
}
|
||
});
|
||
}
|
||
});
|
||
localCapabilities.headerExtensions.forEach(function(hdrExt) {
|
||
var remoteExtensions = transceiver.remoteCapabilities &&
|
||
transceiver.remoteCapabilities.headerExtensions || [];
|
||
remoteExtensions.forEach(function(rHdrExt) {
|
||
if (hdrExt.uri === rHdrExt.uri) {
|
||
hdrExt.id = rHdrExt.id;
|
||
}
|
||
});
|
||
});
|
||
|
||
// generate an ssrc now, to be used later in rtpSender.send
|
||
var sendEncodingParameters = transceiver.sendEncodingParameters || [{
|
||
ssrc: (2 * sdpMLineIndex + 1) * 1001
|
||
}];
|
||
if (track) {
|
||
// add RTX
|
||
if (edgeVersion >= 15019 && kind === 'video' &&
|
||
!sendEncodingParameters[0].rtx) {
|
||
sendEncodingParameters[0].rtx = {
|
||
ssrc: sendEncodingParameters[0].ssrc + 1
|
||
};
|
||
}
|
||
}
|
||
|
||
if (transceiver.wantReceive) {
|
||
transceiver.rtpReceiver = new window.RTCRtpReceiver(
|
||
transceiver.dtlsTransport, kind);
|
||
}
|
||
|
||
transceiver.localCapabilities = localCapabilities;
|
||
transceiver.sendEncodingParameters = sendEncodingParameters;
|
||
});
|
||
|
||
// always offer BUNDLE and dispose on return if not supported.
|
||
if (pc._config.bundlePolicy !== 'max-compat') {
|
||
sdp += 'a=group:BUNDLE ' + pc.transceivers.map(function(t) {
|
||
return t.mid;
|
||
}).join(' ') + '\r\n';
|
||
}
|
||
sdp += 'a=ice-options:trickle\r\n';
|
||
|
||
pc.transceivers.forEach(function(transceiver, sdpMLineIndex) {
|
||
sdp += writeMediaSection(transceiver, transceiver.localCapabilities,
|
||
'offer', transceiver.stream, pc._dtlsRole);
|
||
sdp += 'a=rtcp-rsize\r\n';
|
||
|
||
if (transceiver.iceGatherer && pc.iceGatheringState !== 'new' &&
|
||
(sdpMLineIndex === 0 || !pc.usingBundle)) {
|
||
transceiver.iceGatherer.getLocalCandidates().forEach(function(cand) {
|
||
cand.component = 1;
|
||
sdp += 'a=' + SDPUtils.writeCandidate(cand) + '\r\n';
|
||
});
|
||
|
||
if (transceiver.iceGatherer.state === 'completed') {
|
||
sdp += 'a=end-of-candidates\r\n';
|
||
}
|
||
}
|
||
});
|
||
|
||
var desc = new window.RTCSessionDescription({
|
||
type: 'offer',
|
||
sdp: sdp
|
||
});
|
||
return Promise.resolve(desc);
|
||
};
|
||
|
||
RTCPeerConnection.prototype.createAnswer = function() {
|
||
var pc = this;
|
||
|
||
if (pc._isClosed) {
|
||
return Promise.reject(makeError('InvalidStateError',
|
||
'Can not call createAnswer after close'));
|
||
}
|
||
|
||
if (!(pc.signalingState === 'have-remote-offer' ||
|
||
pc.signalingState === 'have-local-pranswer')) {
|
||
return Promise.reject(makeError('InvalidStateError',
|
||
'Can not call createAnswer in signalingState ' + pc.signalingState));
|
||
}
|
||
|
||
var sdp = SDPUtils.writeSessionBoilerplate(pc._sdpSessionId,
|
||
pc._sdpSessionVersion++);
|
||
if (pc.usingBundle) {
|
||
sdp += 'a=group:BUNDLE ' + pc.transceivers.map(function(t) {
|
||
return t.mid;
|
||
}).join(' ') + '\r\n';
|
||
}
|
||
sdp += 'a=ice-options:trickle\r\n';
|
||
|
||
var mediaSectionsInOffer = SDPUtils.getMediaSections(
|
||
pc._remoteDescription.sdp).length;
|
||
pc.transceivers.forEach(function(transceiver, sdpMLineIndex) {
|
||
if (sdpMLineIndex + 1 > mediaSectionsInOffer) {
|
||
return;
|
||
}
|
||
if (transceiver.rejected) {
|
||
if (transceiver.kind === 'application') {
|
||
if (transceiver.protocol === 'DTLS/SCTP') { // legacy fmt
|
||
sdp += 'm=application 0 DTLS/SCTP 5000\r\n';
|
||
} else {
|
||
sdp += 'm=application 0 ' + transceiver.protocol +
|
||
' webrtc-datachannel\r\n';
|
||
}
|
||
} else if (transceiver.kind === 'audio') {
|
||
sdp += 'm=audio 0 UDP/TLS/RTP/SAVPF 0\r\n' +
|
||
'a=rtpmap:0 PCMU/8000\r\n';
|
||
} else if (transceiver.kind === 'video') {
|
||
sdp += 'm=video 0 UDP/TLS/RTP/SAVPF 120\r\n' +
|
||
'a=rtpmap:120 VP8/90000\r\n';
|
||
}
|
||
sdp += 'c=IN IP4 0.0.0.0\r\n' +
|
||
'a=inactive\r\n' +
|
||
'a=mid:' + transceiver.mid + '\r\n';
|
||
return;
|
||
}
|
||
|
||
// FIXME: look at direction.
|
||
if (transceiver.stream) {
|
||
var localTrack;
|
||
if (transceiver.kind === 'audio') {
|
||
localTrack = transceiver.stream.getAudioTracks()[0];
|
||
} else if (transceiver.kind === 'video') {
|
||
localTrack = transceiver.stream.getVideoTracks()[0];
|
||
}
|
||
if (localTrack) {
|
||
// add RTX
|
||
if (edgeVersion >= 15019 && transceiver.kind === 'video' &&
|
||
!transceiver.sendEncodingParameters[0].rtx) {
|
||
transceiver.sendEncodingParameters[0].rtx = {
|
||
ssrc: transceiver.sendEncodingParameters[0].ssrc + 1
|
||
};
|
||
}
|
||
}
|
||
}
|
||
|
||
// Calculate intersection of capabilities.
|
||
var commonCapabilities = getCommonCapabilities(
|
||
transceiver.localCapabilities,
|
||
transceiver.remoteCapabilities);
|
||
|
||
var hasRtx = commonCapabilities.codecs.filter(function(c) {
|
||
return c.name.toLowerCase() === 'rtx';
|
||
}).length;
|
||
if (!hasRtx && transceiver.sendEncodingParameters[0].rtx) {
|
||
delete transceiver.sendEncodingParameters[0].rtx;
|
||
}
|
||
|
||
sdp += writeMediaSection(transceiver, commonCapabilities,
|
||
'answer', transceiver.stream, pc._dtlsRole);
|
||
if (transceiver.rtcpParameters &&
|
||
transceiver.rtcpParameters.reducedSize) {
|
||
sdp += 'a=rtcp-rsize\r\n';
|
||
}
|
||
});
|
||
|
||
var desc = new window.RTCSessionDescription({
|
||
type: 'answer',
|
||
sdp: sdp
|
||
});
|
||
return Promise.resolve(desc);
|
||
};
|
||
|
||
RTCPeerConnection.prototype.addIceCandidate = function(candidate) {
|
||
var pc = this;
|
||
var sections;
|
||
if (candidate && !(candidate.sdpMLineIndex !== undefined ||
|
||
candidate.sdpMid)) {
|
||
return Promise.reject(new TypeError('sdpMLineIndex or sdpMid required'));
|
||
}
|
||
|
||
// TODO: needs to go into ops queue.
|
||
return new Promise(function(resolve, reject) {
|
||
if (!pc._remoteDescription) {
|
||
return reject(makeError('InvalidStateError',
|
||
'Can not add ICE candidate without a remote description'));
|
||
} else if (!candidate || candidate.candidate === '') {
|
||
for (var j = 0; j < pc.transceivers.length; j++) {
|
||
if (pc.transceivers[j].rejected) {
|
||
continue;
|
||
}
|
||
pc.transceivers[j].iceTransport.addRemoteCandidate({});
|
||
sections = SDPUtils.getMediaSections(pc._remoteDescription.sdp);
|
||
sections[j] += 'a=end-of-candidates\r\n';
|
||
pc._remoteDescription.sdp =
|
||
SDPUtils.getDescription(pc._remoteDescription.sdp) +
|
||
sections.join('');
|
||
if (pc.usingBundle) {
|
||
break;
|
||
}
|
||
}
|
||
} else {
|
||
var sdpMLineIndex = candidate.sdpMLineIndex;
|
||
if (candidate.sdpMid) {
|
||
for (var i = 0; i < pc.transceivers.length; i++) {
|
||
if (pc.transceivers[i].mid === candidate.sdpMid) {
|
||
sdpMLineIndex = i;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
var transceiver = pc.transceivers[sdpMLineIndex];
|
||
if (transceiver) {
|
||
if (transceiver.rejected) {
|
||
return resolve();
|
||
}
|
||
var cand = Object.keys(candidate.candidate).length > 0 ?
|
||
SDPUtils.parseCandidate(candidate.candidate) : {};
|
||
// Ignore Chrome's invalid candidates since Edge does not like them.
|
||
if (cand.protocol === 'tcp' && (cand.port === 0 || cand.port === 9)) {
|
||
return resolve();
|
||
}
|
||
// Ignore RTCP candidates, we assume RTCP-MUX.
|
||
if (cand.component && cand.component !== 1) {
|
||
return resolve();
|
||
}
|
||
// when using bundle, avoid adding candidates to the wrong
|
||
// ice transport. And avoid adding candidates added in the SDP.
|
||
if (sdpMLineIndex === 0 || (sdpMLineIndex > 0 &&
|
||
transceiver.iceTransport !== pc.transceivers[0].iceTransport)) {
|
||
if (!maybeAddCandidate(transceiver.iceTransport, cand)) {
|
||
return reject(makeError('OperationError',
|
||
'Can not add ICE candidate'));
|
||
}
|
||
}
|
||
|
||
// update the remoteDescription.
|
||
var candidateString = candidate.candidate.trim();
|
||
if (candidateString.indexOf('a=') === 0) {
|
||
candidateString = candidateString.substr(2);
|
||
}
|
||
sections = SDPUtils.getMediaSections(pc._remoteDescription.sdp);
|
||
sections[sdpMLineIndex] += 'a=' +
|
||
(cand.type ? candidateString : 'end-of-candidates')
|
||
+ '\r\n';
|
||
pc._remoteDescription.sdp =
|
||
SDPUtils.getDescription(pc._remoteDescription.sdp) +
|
||
sections.join('');
|
||
} else {
|
||
return reject(makeError('OperationError',
|
||
'Can not add ICE candidate'));
|
||
}
|
||
}
|
||
resolve();
|
||
});
|
||
};
|
||
|
||
RTCPeerConnection.prototype.getStats = function(selector) {
|
||
if (selector && selector instanceof window.MediaStreamTrack) {
|
||
var senderOrReceiver = null;
|
||
this.transceivers.forEach(function(transceiver) {
|
||
if (transceiver.rtpSender &&
|
||
transceiver.rtpSender.track === selector) {
|
||
senderOrReceiver = transceiver.rtpSender;
|
||
} else if (transceiver.rtpReceiver &&
|
||
transceiver.rtpReceiver.track === selector) {
|
||
senderOrReceiver = transceiver.rtpReceiver;
|
||
}
|
||
});
|
||
if (!senderOrReceiver) {
|
||
throw makeError('InvalidAccessError', 'Invalid selector.');
|
||
}
|
||
return senderOrReceiver.getStats();
|
||
}
|
||
|
||
var promises = [];
|
||
this.transceivers.forEach(function(transceiver) {
|
||
['rtpSender', 'rtpReceiver', 'iceGatherer', 'iceTransport',
|
||
'dtlsTransport'].forEach(function(method) {
|
||
if (transceiver[method]) {
|
||
promises.push(transceiver[method].getStats());
|
||
}
|
||
});
|
||
});
|
||
return Promise.all(promises).then(function(allStats) {
|
||
var results = new Map();
|
||
allStats.forEach(function(stats) {
|
||
stats.forEach(function(stat) {
|
||
results.set(stat.id, stat);
|
||
});
|
||
});
|
||
return results;
|
||
});
|
||
};
|
||
|
||
// fix low-level stat names and return Map instead of object.
|
||
var ortcObjects = ['RTCRtpSender', 'RTCRtpReceiver', 'RTCIceGatherer',
|
||
'RTCIceTransport', 'RTCDtlsTransport'];
|
||
ortcObjects.forEach(function(ortcObjectName) {
|
||
var obj = window[ortcObjectName];
|
||
if (obj && obj.prototype && obj.prototype.getStats) {
|
||
var nativeGetstats = obj.prototype.getStats;
|
||
obj.prototype.getStats = function() {
|
||
return nativeGetstats.apply(this)
|
||
.then(function(nativeStats) {
|
||
var mapStats = new Map();
|
||
Object.keys(nativeStats).forEach(function(id) {
|
||
nativeStats[id].type = fixStatsType(nativeStats[id]);
|
||
mapStats.set(id, nativeStats[id]);
|
||
});
|
||
return mapStats;
|
||
});
|
||
};
|
||
}
|
||
});
|
||
|
||
// legacy callback shims. Should be moved to adapter.js some days.
|
||
var methods = ['createOffer', 'createAnswer'];
|
||
methods.forEach(function(method) {
|
||
var nativeMethod = RTCPeerConnection.prototype[method];
|
||
RTCPeerConnection.prototype[method] = function() {
|
||
var args = arguments;
|
||
if (typeof args[0] === 'function' ||
|
||
typeof args[1] === 'function') { // legacy
|
||
return nativeMethod.apply(this, [arguments[2]])
|
||
.then(function(description) {
|
||
if (typeof args[0] === 'function') {
|
||
args[0].apply(null, [description]);
|
||
}
|
||
}, function(error) {
|
||
if (typeof args[1] === 'function') {
|
||
args[1].apply(null, [error]);
|
||
}
|
||
});
|
||
}
|
||
return nativeMethod.apply(this, arguments);
|
||
};
|
||
});
|
||
|
||
methods = ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate'];
|
||
methods.forEach(function(method) {
|
||
var nativeMethod = RTCPeerConnection.prototype[method];
|
||
RTCPeerConnection.prototype[method] = function() {
|
||
var args = arguments;
|
||
if (typeof args[1] === 'function' ||
|
||
typeof args[2] === 'function') { // legacy
|
||
return nativeMethod.apply(this, arguments)
|
||
.then(function() {
|
||
if (typeof args[1] === 'function') {
|
||
args[1].apply(null);
|
||
}
|
||
}, function(error) {
|
||
if (typeof args[2] === 'function') {
|
||
args[2].apply(null, [error]);
|
||
}
|
||
});
|
||
}
|
||
return nativeMethod.apply(this, arguments);
|
||
};
|
||
});
|
||
|
||
// getStats is special. It doesn't have a spec legacy method yet we support
|
||
// getStats(something, cb) without error callbacks.
|
||
['getStats'].forEach(function(method) {
|
||
var nativeMethod = RTCPeerConnection.prototype[method];
|
||
RTCPeerConnection.prototype[method] = function() {
|
||
var args = arguments;
|
||
if (typeof args[1] === 'function') {
|
||
return nativeMethod.apply(this, arguments)
|
||
.then(function() {
|
||
if (typeof args[1] === 'function') {
|
||
args[1].apply(null);
|
||
}
|
||
});
|
||
}
|
||
return nativeMethod.apply(this, arguments);
|
||
};
|
||
});
|
||
|
||
return RTCPeerConnection;
|
||
};
|
||
|
||
},{"sdp":17}],17:[function(require,module,exports){
|
||
/* eslint-env node */
|
||
'use strict';
|
||
|
||
// SDP helpers.
|
||
var SDPUtils = {};
|
||
|
||
// Generate an alphanumeric identifier for cname or mids.
|
||
// TODO: use UUIDs instead? https://gist.github.com/jed/982883
|
||
SDPUtils.generateIdentifier = function() {
|
||
return Math.random().toString(36).substr(2, 10);
|
||
};
|
||
|
||
// The RTCP CNAME used by all peerconnections from the same JS.
|
||
SDPUtils.localCName = SDPUtils.generateIdentifier();
|
||
|
||
// Splits SDP into lines, dealing with both CRLF and LF.
|
||
SDPUtils.splitLines = function(blob) {
|
||
return blob.trim().split('\n').map(function(line) {
|
||
return line.trim();
|
||
});
|
||
};
|
||
// Splits SDP into sessionpart and mediasections. Ensures CRLF.
|
||
SDPUtils.splitSections = function(blob) {
|
||
var parts = blob.split('\nm=');
|
||
return parts.map(function(part, index) {
|
||
return (index > 0 ? 'm=' + part : part).trim() + '\r\n';
|
||
});
|
||
};
|
||
|
||
// returns the session description.
|
||
SDPUtils.getDescription = function(blob) {
|
||
var sections = SDPUtils.splitSections(blob);
|
||
return sections && sections[0];
|
||
};
|
||
|
||
// returns the individual media sections.
|
||
SDPUtils.getMediaSections = function(blob) {
|
||
var sections = SDPUtils.splitSections(blob);
|
||
sections.shift();
|
||
return sections;
|
||
};
|
||
|
||
// Returns lines that start with a certain prefix.
|
||
SDPUtils.matchPrefix = function(blob, prefix) {
|
||
return SDPUtils.splitLines(blob).filter(function(line) {
|
||
return line.indexOf(prefix) === 0;
|
||
});
|
||
};
|
||
|
||
// Parses an ICE candidate line. Sample input:
|
||
// candidate:702786350 2 udp 41819902 8.8.8.8 60769 typ relay raddr 8.8.8.8
|
||
// rport 55996"
|
||
SDPUtils.parseCandidate = function(line) {
|
||
var parts;
|
||
// Parse both variants.
|
||
if (line.indexOf('a=candidate:') === 0) {
|
||
parts = line.substring(12).split(' ');
|
||
} else {
|
||
parts = line.substring(10).split(' ');
|
||
}
|
||
|
||
var candidate = {
|
||
foundation: parts[0],
|
||
component: parseInt(parts[1], 10),
|
||
protocol: parts[2].toLowerCase(),
|
||
priority: parseInt(parts[3], 10),
|
||
ip: parts[4],
|
||
address: parts[4], // address is an alias for ip.
|
||
port: parseInt(parts[5], 10),
|
||
// skip parts[6] == 'typ'
|
||
type: parts[7]
|
||
};
|
||
|
||
for (var i = 8; i < parts.length; i += 2) {
|
||
switch (parts[i]) {
|
||
case 'raddr':
|
||
candidate.relatedAddress = parts[i + 1];
|
||
break;
|
||
case 'rport':
|
||
candidate.relatedPort = parseInt(parts[i + 1], 10);
|
||
break;
|
||
case 'tcptype':
|
||
candidate.tcpType = parts[i + 1];
|
||
break;
|
||
case 'ufrag':
|
||
candidate.ufrag = parts[i + 1]; // for backward compability.
|
||
candidate.usernameFragment = parts[i + 1];
|
||
break;
|
||
default: // extension handling, in particular ufrag
|
||
candidate[parts[i]] = parts[i + 1];
|
||
break;
|
||
}
|
||
}
|
||
return candidate;
|
||
};
|
||
|
||
// Translates a candidate object into SDP candidate attribute.
|
||
SDPUtils.writeCandidate = function(candidate) {
|
||
var sdp = [];
|
||
sdp.push(candidate.foundation);
|
||
sdp.push(candidate.component);
|
||
sdp.push(candidate.protocol.toUpperCase());
|
||
sdp.push(candidate.priority);
|
||
sdp.push(candidate.address || candidate.ip);
|
||
sdp.push(candidate.port);
|
||
|
||
var type = candidate.type;
|
||
sdp.push('typ');
|
||
sdp.push(type);
|
||
if (type !== 'host' && candidate.relatedAddress &&
|
||
candidate.relatedPort) {
|
||
sdp.push('raddr');
|
||
sdp.push(candidate.relatedAddress);
|
||
sdp.push('rport');
|
||
sdp.push(candidate.relatedPort);
|
||
}
|
||
if (candidate.tcpType && candidate.protocol.toLowerCase() === 'tcp') {
|
||
sdp.push('tcptype');
|
||
sdp.push(candidate.tcpType);
|
||
}
|
||
if (candidate.usernameFragment || candidate.ufrag) {
|
||
sdp.push('ufrag');
|
||
sdp.push(candidate.usernameFragment || candidate.ufrag);
|
||
}
|
||
return 'candidate:' + sdp.join(' ');
|
||
};
|
||
|
||
// Parses an ice-options line, returns an array of option tags.
|
||
// a=ice-options:foo bar
|
||
SDPUtils.parseIceOptions = function(line) {
|
||
return line.substr(14).split(' ');
|
||
};
|
||
|
||
// Parses an rtpmap line, returns RTCRtpCoddecParameters. Sample input:
|
||
// a=rtpmap:111 opus/48000/2
|
||
SDPUtils.parseRtpMap = function(line) {
|
||
var parts = line.substr(9).split(' ');
|
||
var parsed = {
|
||
payloadType: parseInt(parts.shift(), 10) // was: id
|
||
};
|
||
|
||
parts = parts[0].split('/');
|
||
|
||
parsed.name = parts[0];
|
||
parsed.clockRate = parseInt(parts[1], 10); // was: clockrate
|
||
parsed.channels = parts.length === 3 ? parseInt(parts[2], 10) : 1;
|
||
// legacy alias, got renamed back to channels in ORTC.
|
||
parsed.numChannels = parsed.channels;
|
||
return parsed;
|
||
};
|
||
|
||
// Generate an a=rtpmap line from RTCRtpCodecCapability or
|
||
// RTCRtpCodecParameters.
|
||
SDPUtils.writeRtpMap = function(codec) {
|
||
var pt = codec.payloadType;
|
||
if (codec.preferredPayloadType !== undefined) {
|
||
pt = codec.preferredPayloadType;
|
||
}
|
||
var channels = codec.channels || codec.numChannels || 1;
|
||
return 'a=rtpmap:' + pt + ' ' + codec.name + '/' + codec.clockRate +
|
||
(channels !== 1 ? '/' + channels : '') + '\r\n';
|
||
};
|
||
|
||
// Parses an a=extmap line (headerextension from RFC 5285). Sample input:
|
||
// a=extmap:2 urn:ietf:params:rtp-hdrext:toffset
|
||
// a=extmap:2/sendonly urn:ietf:params:rtp-hdrext:toffset
|
||
SDPUtils.parseExtmap = function(line) {
|
||
var parts = line.substr(9).split(' ');
|
||
return {
|
||
id: parseInt(parts[0], 10),
|
||
direction: parts[0].indexOf('/') > 0 ? parts[0].split('/')[1] : 'sendrecv',
|
||
uri: parts[1]
|
||
};
|
||
};
|
||
|
||
// Generates a=extmap line from RTCRtpHeaderExtensionParameters or
|
||
// RTCRtpHeaderExtension.
|
||
SDPUtils.writeExtmap = function(headerExtension) {
|
||
return 'a=extmap:' + (headerExtension.id || headerExtension.preferredId) +
|
||
(headerExtension.direction && headerExtension.direction !== 'sendrecv'
|
||
? '/' + headerExtension.direction
|
||
: '') +
|
||
' ' + headerExtension.uri + '\r\n';
|
||
};
|
||
|
||
// Parses an ftmp line, returns dictionary. Sample input:
|
||
// a=fmtp:96 vbr=on;cng=on
|
||
// Also deals with vbr=on; cng=on
|
||
SDPUtils.parseFmtp = function(line) {
|
||
var parsed = {};
|
||
var kv;
|
||
var parts = line.substr(line.indexOf(' ') + 1).split(';');
|
||
for (var j = 0; j < parts.length; j++) {
|
||
kv = parts[j].trim().split('=');
|
||
parsed[kv[0].trim()] = kv[1];
|
||
}
|
||
return parsed;
|
||
};
|
||
|
||
// Generates an a=ftmp line from RTCRtpCodecCapability or RTCRtpCodecParameters.
|
||
SDPUtils.writeFmtp = function(codec) {
|
||
var line = '';
|
||
var pt = codec.payloadType;
|
||
if (codec.preferredPayloadType !== undefined) {
|
||
pt = codec.preferredPayloadType;
|
||
}
|
||
if (codec.parameters && Object.keys(codec.parameters).length) {
|
||
var params = [];
|
||
Object.keys(codec.parameters).forEach(function(param) {
|
||
if (codec.parameters[param]) {
|
||
params.push(param + '=' + codec.parameters[param]);
|
||
} else {
|
||
params.push(param);
|
||
}
|
||
});
|
||
line += 'a=fmtp:' + pt + ' ' + params.join(';') + '\r\n';
|
||
}
|
||
return line;
|
||
};
|
||
|
||
// Parses an rtcp-fb line, returns RTCPRtcpFeedback object. Sample input:
|
||
// a=rtcp-fb:98 nack rpsi
|
||
SDPUtils.parseRtcpFb = function(line) {
|
||
var parts = line.substr(line.indexOf(' ') + 1).split(' ');
|
||
return {
|
||
type: parts.shift(),
|
||
parameter: parts.join(' ')
|
||
};
|
||
};
|
||
// Generate a=rtcp-fb lines from RTCRtpCodecCapability or RTCRtpCodecParameters.
|
||
SDPUtils.writeRtcpFb = function(codec) {
|
||
var lines = '';
|
||
var pt = codec.payloadType;
|
||
if (codec.preferredPayloadType !== undefined) {
|
||
pt = codec.preferredPayloadType;
|
||
}
|
||
if (codec.rtcpFeedback && codec.rtcpFeedback.length) {
|
||
// FIXME: special handling for trr-int?
|
||
codec.rtcpFeedback.forEach(function(fb) {
|
||
lines += 'a=rtcp-fb:' + pt + ' ' + fb.type +
|
||
(fb.parameter && fb.parameter.length ? ' ' + fb.parameter : '') +
|
||
'\r\n';
|
||
});
|
||
}
|
||
return lines;
|
||
};
|
||
|
||
// Parses an RFC 5576 ssrc media attribute. Sample input:
|
||
// a=ssrc:3735928559 cname:something
|
||
SDPUtils.parseSsrcMedia = function(line) {
|
||
var sp = line.indexOf(' ');
|
||
var parts = {
|
||
ssrc: parseInt(line.substr(7, sp - 7), 10)
|
||
};
|
||
var colon = line.indexOf(':', sp);
|
||
if (colon > -1) {
|
||
parts.attribute = line.substr(sp + 1, colon - sp - 1);
|
||
parts.value = line.substr(colon + 1);
|
||
} else {
|
||
parts.attribute = line.substr(sp + 1);
|
||
}
|
||
return parts;
|
||
};
|
||
|
||
SDPUtils.parseSsrcGroup = function(line) {
|
||
var parts = line.substr(13).split(' ');
|
||
return {
|
||
semantics: parts.shift(),
|
||
ssrcs: parts.map(function(ssrc) {
|
||
return parseInt(ssrc, 10);
|
||
})
|
||
};
|
||
};
|
||
|
||
// Extracts the MID (RFC 5888) from a media section.
|
||
// returns the MID or undefined if no mid line was found.
|
||
SDPUtils.getMid = function(mediaSection) {
|
||
var mid = SDPUtils.matchPrefix(mediaSection, 'a=mid:')[0];
|
||
if (mid) {
|
||
return mid.substr(6);
|
||
}
|
||
};
|
||
|
||
SDPUtils.parseFingerprint = function(line) {
|
||
var parts = line.substr(14).split(' ');
|
||
return {
|
||
algorithm: parts[0].toLowerCase(), // algorithm is case-sensitive in Edge.
|
||
value: parts[1]
|
||
};
|
||
};
|
||
|
||
// Extracts DTLS parameters from SDP media section or sessionpart.
|
||
// FIXME: for consistency with other functions this should only
|
||
// get the fingerprint line as input. See also getIceParameters.
|
||
SDPUtils.getDtlsParameters = function(mediaSection, sessionpart) {
|
||
var lines = SDPUtils.matchPrefix(mediaSection + sessionpart,
|
||
'a=fingerprint:');
|
||
// Note: a=setup line is ignored since we use the 'auto' role.
|
||
// Note2: 'algorithm' is not case sensitive except in Edge.
|
||
return {
|
||
role: 'auto',
|
||
fingerprints: lines.map(SDPUtils.parseFingerprint)
|
||
};
|
||
};
|
||
|
||
// Serializes DTLS parameters to SDP.
|
||
SDPUtils.writeDtlsParameters = function(params, setupType) {
|
||
var sdp = 'a=setup:' + setupType + '\r\n';
|
||
params.fingerprints.forEach(function(fp) {
|
||
sdp += 'a=fingerprint:' + fp.algorithm + ' ' + fp.value + '\r\n';
|
||
});
|
||
return sdp;
|
||
};
|
||
// Parses 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;
|
||
};
|
||
|
||
// Serializes ICE parameters to SDP.
|
||
SDPUtils.writeIceParameters = function(params) {
|
||
return 'a=ice-ufrag:' + params.usernameFragment + '\r\n' +
|
||
'a=ice-pwd:' + params.password + '\r\n';
|
||
};
|
||
|
||
// Parses the SDP media section and returns RTCRtpParameters.
|
||
SDPUtils.parseRtpParameters = function(mediaSection) {
|
||
var description = {
|
||
codecs: [],
|
||
headerExtensions: [],
|
||
fecMechanisms: [],
|
||
rtcp: []
|
||
};
|
||
var lines = SDPUtils.splitLines(mediaSection);
|
||
var mline = lines[0].split(' ');
|
||
for (var i = 3; i < mline.length; i++) { // find all codecs from mline[3..]
|
||
var pt = mline[i];
|
||
var rtpmapline = SDPUtils.matchPrefix(
|
||
mediaSection, 'a=rtpmap:' + pt + ' ')[0];
|
||
if (rtpmapline) {
|
||
var codec = SDPUtils.parseRtpMap(rtpmapline);
|
||
var fmtps = SDPUtils.matchPrefix(
|
||
mediaSection, 'a=fmtp:' + pt + ' ');
|
||
// Only the first a=fmtp:<pt> is considered.
|
||
codec.parameters = fmtps.length ? SDPUtils.parseFmtp(fmtps[0]) : {};
|
||
codec.rtcpFeedback = SDPUtils.matchPrefix(
|
||
mediaSection, 'a=rtcp-fb:' + pt + ' ')
|
||
.map(SDPUtils.parseRtcpFb);
|
||
description.codecs.push(codec);
|
||
// parse FEC mechanisms from rtpmap lines.
|
||
switch (codec.name.toUpperCase()) {
|
||
case 'RED':
|
||
case 'ULPFEC':
|
||
description.fecMechanisms.push(codec.name.toUpperCase());
|
||
break;
|
||
default: // only RED and ULPFEC are recognized as FEC mechanisms.
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
SDPUtils.matchPrefix(mediaSection, 'a=extmap:').forEach(function(line) {
|
||
description.headerExtensions.push(SDPUtils.parseExtmap(line));
|
||
});
|
||
// FIXME: parse rtcp.
|
||
return description;
|
||
};
|
||
|
||
// Generates parts of the SDP media section describing the capabilities /
|
||
// parameters.
|
||
SDPUtils.writeRtpDescription = function(kind, caps) {
|
||
var sdp = '';
|
||
|
||
// Build the mline.
|
||
sdp += 'm=' + kind + ' ';
|
||
sdp += caps.codecs.length > 0 ? '9' : '0'; // reject if no codecs.
|
||
sdp += ' UDP/TLS/RTP/SAVPF ';
|
||
sdp += caps.codecs.map(function(codec) {
|
||
if (codec.preferredPayloadType !== undefined) {
|
||
return codec.preferredPayloadType;
|
||
}
|
||
return codec.payloadType;
|
||
}).join(' ') + '\r\n';
|
||
|
||
sdp += 'c=IN IP4 0.0.0.0\r\n';
|
||
sdp += 'a=rtcp:9 IN IP4 0.0.0.0\r\n';
|
||
|
||
// Add a=rtpmap lines for each codec. Also fmtp and rtcp-fb.
|
||
caps.codecs.forEach(function(codec) {
|
||
sdp += SDPUtils.writeRtpMap(codec);
|
||
sdp += SDPUtils.writeFmtp(codec);
|
||
sdp += SDPUtils.writeRtcpFb(codec);
|
||
});
|
||
var maxptime = 0;
|
||
caps.codecs.forEach(function(codec) {
|
||
if (codec.maxptime > maxptime) {
|
||
maxptime = codec.maxptime;
|
||
}
|
||
});
|
||
if (maxptime > 0) {
|
||
sdp += 'a=maxptime:' + maxptime + '\r\n';
|
||
}
|
||
sdp += 'a=rtcp-mux\r\n';
|
||
|
||
if (caps.headerExtensions) {
|
||
caps.headerExtensions.forEach(function(extension) {
|
||
sdp += SDPUtils.writeExtmap(extension);
|
||
});
|
||
}
|
||
// FIXME: write fecMechanisms.
|
||
return sdp;
|
||
};
|
||
|
||
// Parses the SDP media section and returns an array of
|
||
// RTCRtpEncodingParameters.
|
||
SDPUtils.parseRtpEncodingParameters = function(mediaSection) {
|
||
var encodingParameters = [];
|
||
var description = SDPUtils.parseRtpParameters(mediaSection);
|
||
var hasRed = description.fecMechanisms.indexOf('RED') !== -1;
|
||
var hasUlpfec = description.fecMechanisms.indexOf('ULPFEC') !== -1;
|
||
|
||
// filter a=ssrc:... cname:, ignore PlanB-msid
|
||
var ssrcs = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
|
||
.map(function(line) {
|
||
return SDPUtils.parseSsrcMedia(line);
|
||
})
|
||
.filter(function(parts) {
|
||
return parts.attribute === 'cname';
|
||
});
|
||
var primarySsrc = ssrcs.length > 0 && ssrcs[0].ssrc;
|
||
var secondarySsrc;
|
||
|
||
var flows = SDPUtils.matchPrefix(mediaSection, 'a=ssrc-group:FID')
|
||
.map(function(line) {
|
||
var parts = line.substr(17).split(' ');
|
||
return parts.map(function(part) {
|
||
return parseInt(part, 10);
|
||
});
|
||
});
|
||
if (flows.length > 0 && flows[0].length > 1 && flows[0][0] === primarySsrc) {
|
||
secondarySsrc = flows[0][1];
|
||
}
|
||
|
||
description.codecs.forEach(function(codec) {
|
||
if (codec.name.toUpperCase() === 'RTX' && codec.parameters.apt) {
|
||
var encParam = {
|
||
ssrc: primarySsrc,
|
||
codecPayloadType: parseInt(codec.parameters.apt, 10)
|
||
};
|
||
if (primarySsrc && secondarySsrc) {
|
||
encParam.rtx = {ssrc: secondarySsrc};
|
||
}
|
||
encodingParameters.push(encParam);
|
||
if (hasRed) {
|
||
encParam = JSON.parse(JSON.stringify(encParam));
|
||
encParam.fec = {
|
||
ssrc: primarySsrc,
|
||
mechanism: hasUlpfec ? 'red+ulpfec' : 'red'
|
||
};
|
||
encodingParameters.push(encParam);
|
||
}
|
||
}
|
||
});
|
||
if (encodingParameters.length === 0 && primarySsrc) {
|
||
encodingParameters.push({
|
||
ssrc: primarySsrc
|
||
});
|
||
}
|
||
|
||
// we support both b=AS and b=TIAS but interpret AS as TIAS.
|
||
var bandwidth = SDPUtils.matchPrefix(mediaSection, 'b=');
|
||
if (bandwidth.length) {
|
||
if (bandwidth[0].indexOf('b=TIAS:') === 0) {
|
||
bandwidth = parseInt(bandwidth[0].substr(7), 10);
|
||
} else if (bandwidth[0].indexOf('b=AS:') === 0) {
|
||
// use formula from JSEP to convert b=AS to TIAS value.
|
||
bandwidth = parseInt(bandwidth[0].substr(5), 10) * 1000 * 0.95
|
||
- (50 * 40 * 8);
|
||
} else {
|
||
bandwidth = undefined;
|
||
}
|
||
encodingParameters.forEach(function(params) {
|
||
params.maxBitrate = bandwidth;
|
||
});
|
||
}
|
||
return encodingParameters;
|
||
};
|
||
|
||
// parses http://draft.ortc.org/#rtcrtcpparameters*
|
||
SDPUtils.parseRtcpParameters = function(mediaSection) {
|
||
var rtcpParameters = {};
|
||
|
||
// Gets the first SSRC. Note tha with RTX there might be multiple
|
||
// SSRCs.
|
||
var remoteSsrc = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
|
||
.map(function(line) {
|
||
return SDPUtils.parseSsrcMedia(line);
|
||
})
|
||
.filter(function(obj) {
|
||
return obj.attribute === 'cname';
|
||
})[0];
|
||
if (remoteSsrc) {
|
||
rtcpParameters.cname = remoteSsrc.value;
|
||
rtcpParameters.ssrc = remoteSsrc.ssrc;
|
||
}
|
||
|
||
// Edge uses the compound attribute instead of reducedSize
|
||
// compound is !reducedSize
|
||
var rsize = SDPUtils.matchPrefix(mediaSection, 'a=rtcp-rsize');
|
||
rtcpParameters.reducedSize = rsize.length > 0;
|
||
rtcpParameters.compound = rsize.length === 0;
|
||
|
||
// parses the rtcp-mux 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]};
|
||
}
|
||
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]};
|
||
}
|
||
};
|
||
|
||
// Generate a session ID for SDP.
|
||
// https://tools.ietf.org/html/draft-ietf-rtcweb-jsep-20#section-5.2.1
|
||
// recommends using a cryptographically random +ve 64-bit value
|
||
// but right now this should be acceptable and within the right range
|
||
SDPUtils.generateSessionId = function() {
|
||
return Math.random().toString().substr(2, 21);
|
||
};
|
||
|
||
// Write boilder plate for start of SDP
|
||
// sessId argument is optional - if not supplied it will
|
||
// be generated randomly
|
||
// sessVersion is optional and defaults to 2
|
||
// sessUser is optional and defaults to 'thisisadapterortc'
|
||
SDPUtils.writeSessionBoilerplate = function(sessId, sessVer, sessUser) {
|
||
var sessionId;
|
||
var version = sessVer !== undefined ? sessVer : 2;
|
||
if (sessId) {
|
||
sessionId = sessId;
|
||
} else {
|
||
sessionId = SDPUtils.generateSessionId();
|
||
}
|
||
var user = sessUser || 'thisisadapterortc';
|
||
// FIXME: sess-id should be an NTP timestamp.
|
||
return 'v=0\r\n' +
|
||
'o=' + user + ' ' + sessionId + ' ' + version +
|
||
' IN IP4 127.0.0.1\r\n' +
|
||
's=-\r\n' +
|
||
't=0 0\r\n';
|
||
};
|
||
|
||
SDPUtils.writeMediaSection = function(transceiver, caps, type, stream) {
|
||
var sdp = SDPUtils.writeRtpDescription(transceiver.kind, caps);
|
||
|
||
// Map ICE parameters (ufrag, pwd) to SDP.
|
||
sdp += SDPUtils.writeIceParameters(
|
||
transceiver.iceGatherer.getLocalParameters());
|
||
|
||
// Map DTLS parameters to SDP.
|
||
sdp += SDPUtils.writeDtlsParameters(
|
||
transceiver.dtlsTransport.getLocalParameters(),
|
||
type === 'offer' ? 'actpass' : 'active');
|
||
|
||
sdp += 'a=mid:' + transceiver.mid + '\r\n';
|
||
|
||
if (transceiver.direction) {
|
||
sdp += 'a=' + transceiver.direction + '\r\n';
|
||
} else if (transceiver.rtpSender && transceiver.rtpReceiver) {
|
||
sdp += 'a=sendrecv\r\n';
|
||
} else if (transceiver.rtpSender) {
|
||
sdp += 'a=sendonly\r\n';
|
||
} else if (transceiver.rtpReceiver) {
|
||
sdp += 'a=recvonly\r\n';
|
||
} else {
|
||
sdp += 'a=inactive\r\n';
|
||
}
|
||
|
||
if (transceiver.rtpSender) {
|
||
// spec.
|
||
var msid = 'msid:' + stream.id + ' ' +
|
||
transceiver.rtpSender.track.id + '\r\n';
|
||
sdp += 'a=' + msid;
|
||
|
||
// for Chrome.
|
||
sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
|
||
' ' + msid;
|
||
if (transceiver.sendEncodingParameters[0].rtx) {
|
||
sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
|
||
' ' + msid;
|
||
sdp += 'a=ssrc-group:FID ' +
|
||
transceiver.sendEncodingParameters[0].ssrc + ' ' +
|
||
transceiver.sendEncodingParameters[0].rtx.ssrc +
|
||
'\r\n';
|
||
}
|
||
}
|
||
// FIXME: this should be written by writeRtpDescription.
|
||
sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
|
||
' cname:' + SDPUtils.localCName + '\r\n';
|
||
if (transceiver.rtpSender && transceiver.sendEncodingParameters[0].rtx) {
|
||
sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
|
||
' cname:' + SDPUtils.localCName + '\r\n';
|
||
}
|
||
return sdp;
|
||
};
|
||
|
||
// Gets the direction from the mediaSection or the sessionpart.
|
||
SDPUtils.getDirection = function(mediaSection, sessionpart) {
|
||
// Look for sendrecv, sendonly, recvonly, inactive, default to sendrecv.
|
||
var lines = SDPUtils.splitLines(mediaSection);
|
||
for (var i = 0; i < lines.length; i++) {
|
||
switch (lines[i]) {
|
||
case 'a=sendrecv':
|
||
case 'a=sendonly':
|
||
case 'a=recvonly':
|
||
case 'a=inactive':
|
||
return lines[i].substr(2);
|
||
default:
|
||
// FIXME: What should happen here?
|
||
}
|
||
}
|
||
if (sessionpart) {
|
||
return SDPUtils.getDirection(sessionpart);
|
||
}
|
||
return 'sendrecv';
|
||
};
|
||
|
||
SDPUtils.getKind = function(mediaSection) {
|
||
var lines = SDPUtils.splitLines(mediaSection);
|
||
var mline = lines[0].split(' ');
|
||
return mline[0].substr(2);
|
||
};
|
||
|
||
SDPUtils.isRejected = function(mediaSection) {
|
||
return mediaSection.split(' ', 2)[1] === '0';
|
||
};
|
||
|
||
SDPUtils.parseMLine = function(mediaSection) {
|
||
var lines = SDPUtils.splitLines(mediaSection);
|
||
var parts = lines[0].substr(2).split(' ');
|
||
return {
|
||
kind: parts[0],
|
||
port: parseInt(parts[1], 10),
|
||
protocol: parts[2],
|
||
fmt: parts.slice(3).join(' ')
|
||
};
|
||
};
|
||
|
||
SDPUtils.parseOLine = function(mediaSection) {
|
||
var line = SDPUtils.matchPrefix(mediaSection, 'o=')[0];
|
||
var parts = line.substr(2).split(' ');
|
||
return {
|
||
username: parts[0],
|
||
sessionId: parts[1],
|
||
sessionVersion: parseInt(parts[2], 10),
|
||
netType: parts[3],
|
||
addressType: parts[4],
|
||
address: parts[5]
|
||
};
|
||
};
|
||
|
||
// a very naive interpretation of a valid SDP.
|
||
SDPUtils.isValidSDP = function(blob) {
|
||
if (typeof blob !== 'string' || blob.length === 0) {
|
||
return false;
|
||
}
|
||
var lines = SDPUtils.splitLines(blob);
|
||
for (var i = 0; i < lines.length; i++) {
|
||
if (lines[i].length < 2 || lines[i].charAt(1) !== '=') {
|
||
return false;
|
||
}
|
||
// TODO: check the modifier a bit more.
|
||
}
|
||
return true;
|
||
};
|
||
|
||
// Expose public methods.
|
||
if (typeof module === 'object') {
|
||
module.exports = SDPUtils;
|
||
}
|
||
|
||
},{}]},{},[1])(1)
|
||
}); |