mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-23 11:17:09 +08:00
2475 lines
85 KiB
JavaScript
2475 lines
85 KiB
JavaScript
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(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.adapter = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
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/*
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* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree.
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*/
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/* eslint-env node */
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'use strict';
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// Shimming starts here.
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(function() {
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// Utils.
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var logging = require('./utils').log;
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var browserDetails = require('./utils').browserDetails;
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// Export to the adapter global object visible in the browser.
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module.exports.browserDetails = browserDetails;
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module.exports.extractVersion = require('./utils').extractVersion;
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module.exports.disableLog = require('./utils').disableLog;
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// Comment out the line below if you want logging to occur, including logging
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// for the switch statement below. Can also be turned on in the browser via
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// adapter.disableLog(false), but then logging from the switch statement below
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// will not appear.
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require('./utils').disableLog(true);
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// Browser shims.
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var chromeShim = require('./chrome/chrome_shim') || null;
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var edgeShim = require('./edge/edge_shim') || null;
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var firefoxShim = require('./firefox/firefox_shim') || null;
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var safariShim = require('./safari/safari_shim') || null;
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// Shim browser if found.
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switch (browserDetails.browser) {
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case 'opera': // fallthrough as it uses chrome shims
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case 'chrome':
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if (!chromeShim || !chromeShim.shimPeerConnection) {
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logging('Chrome shim is not included in this adapter release.');
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return;
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}
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logging('adapter.js shimming chrome.');
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// Export to the adapter global object visible in the browser.
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module.exports.browserShim = chromeShim;
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chromeShim.shimGetUserMedia();
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chromeShim.shimSourceObject();
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chromeShim.shimPeerConnection();
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chromeShim.shimOnTrack();
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break;
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case 'firefox':
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if (!firefoxShim || !firefoxShim.shimPeerConnection) {
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logging('Firefox shim is not included in this adapter release.');
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return;
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}
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logging('adapter.js shimming firefox.');
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// Export to the adapter global object visible in the browser.
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module.exports.browserShim = firefoxShim;
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firefoxShim.shimGetUserMedia();
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firefoxShim.shimSourceObject();
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firefoxShim.shimPeerConnection();
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firefoxShim.shimOnTrack();
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break;
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case 'edge':
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if (!edgeShim || !edgeShim.shimPeerConnection) {
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logging('MS edge shim is not included in this adapter release.');
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return;
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}
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logging('adapter.js shimming edge.');
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// Export to the adapter global object visible in the browser.
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module.exports.browserShim = edgeShim;
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edgeShim.shimPeerConnection();
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break;
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case 'safari':
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if (!safariShim) {
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logging('Safari shim is not included in this adapter release.');
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return;
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}
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logging('adapter.js shimming safari.');
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// Export to the adapter global object visible in the browser.
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module.exports.browserShim = safariShim;
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safariShim.shimGetUserMedia();
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break;
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default:
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logging('Unsupported browser!');
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}
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})();
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},{"./chrome/chrome_shim":2,"./edge/edge_shim":5,"./firefox/firefox_shim":6,"./safari/safari_shim":8,"./utils":9}],2:[function(require,module,exports){
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/*
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* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree.
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*/
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/* eslint-env node */
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'use strict';
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var logging = require('../utils.js').log;
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var browserDetails = require('../utils.js').browserDetails;
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var chromeShim = {
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shimOnTrack: function() {
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if (typeof window === 'object' && window.RTCPeerConnection && !('ontrack' in
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window.RTCPeerConnection.prototype)) {
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Object.defineProperty(window.RTCPeerConnection.prototype, 'ontrack', {
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get: function() {
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return this._ontrack;
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},
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set: function(f) {
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var self = this;
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if (this._ontrack) {
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this.removeEventListener('track', this._ontrack);
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this.removeEventListener('addstream', this._ontrackpoly);
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}
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this.addEventListener('track', this._ontrack = f);
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this.addEventListener('addstream', this._ontrackpoly = function(e) {
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// onaddstream does not fire when a track is added to an existing
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// stream. But stream.onaddtrack is implemented so we use that.
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e.stream.addEventListener('addtrack', function(te) {
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var event = new Event('track');
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event.track = te.track;
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event.receiver = {track: te.track};
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event.streams = [e.stream];
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self.dispatchEvent(event);
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});
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e.stream.getTracks().forEach(function(track) {
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var event = new Event('track');
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event.track = track;
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event.receiver = {track: track};
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event.streams = [e.stream];
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this.dispatchEvent(event);
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}.bind(this));
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}.bind(this));
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}
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});
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}
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},
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shimSourceObject: function() {
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if (typeof window === 'object') {
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if (window.HTMLMediaElement &&
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!('srcObject' in window.HTMLMediaElement.prototype)) {
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// Shim the srcObject property, once, when HTMLMediaElement is found.
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Object.defineProperty(window.HTMLMediaElement.prototype, 'srcObject', {
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get: function() {
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return this._srcObject;
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},
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set: function(stream) {
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var self = this;
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// Use _srcObject as a private property for this shim
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this._srcObject = stream;
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if (this.src) {
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URL.revokeObjectURL(this.src);
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}
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if (!stream) {
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this.src = '';
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return;
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}
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this.src = URL.createObjectURL(stream);
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// We need to recreate the blob url when a track is added or
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// removed. Doing it manually since we want to avoid a recursion.
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stream.addEventListener('addtrack', function() {
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if (self.src) {
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URL.revokeObjectURL(self.src);
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}
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self.src = URL.createObjectURL(stream);
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});
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stream.addEventListener('removetrack', function() {
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if (self.src) {
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URL.revokeObjectURL(self.src);
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}
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self.src = URL.createObjectURL(stream);
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});
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}
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});
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}
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}
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},
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shimPeerConnection: function() {
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// The RTCPeerConnection object.
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window.RTCPeerConnection = function(pcConfig, pcConstraints) {
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// Translate iceTransportPolicy to iceTransports,
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// see https://code.google.com/p/webrtc/issues/detail?id=4869
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logging('PeerConnection');
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if (pcConfig && pcConfig.iceTransportPolicy) {
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pcConfig.iceTransports = pcConfig.iceTransportPolicy;
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}
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var pc = new webkitRTCPeerConnection(pcConfig, pcConstraints);
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var origGetStats = pc.getStats.bind(pc);
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pc.getStats = function(selector, successCallback, errorCallback) {
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var self = this;
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var args = arguments;
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// If selector is a function then we are in the old style stats so just
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// pass back the original getStats format to avoid breaking old users.
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if (arguments.length > 0 && typeof selector === 'function') {
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return origGetStats(selector, successCallback);
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}
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var fixChromeStats_ = function(response) {
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var standardReport = {};
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var reports = response.result();
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reports.forEach(function(report) {
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var standardStats = {
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id: report.id,
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timestamp: report.timestamp,
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type: report.type
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};
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report.names().forEach(function(name) {
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standardStats[name] = report.stat(name);
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});
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standardReport[standardStats.id] = standardStats;
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});
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return standardReport;
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};
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if (arguments.length >= 2) {
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var successCallbackWrapper_ = function(response) {
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args[1](fixChromeStats_(response));
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};
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return origGetStats.apply(this, [successCallbackWrapper_,
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arguments[0]]);
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}
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// promise-support
|
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return new Promise(function(resolve, reject) {
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if (args.length === 1 && typeof selector === 'object') {
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origGetStats.apply(self,
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[function(response) {
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resolve.apply(null, [fixChromeStats_(response)]);
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}, reject]);
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} else {
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origGetStats.apply(self, [resolve, reject]);
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}
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});
|
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};
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|
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return pc;
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};
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window.RTCPeerConnection.prototype = webkitRTCPeerConnection.prototype;
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|
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// wrap static methods. Currently just generateCertificate.
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if (webkitRTCPeerConnection.generateCertificate) {
|
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Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
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get: function() {
|
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return webkitRTCPeerConnection.generateCertificate;
|
||
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}
|
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});
|
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}
|
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|
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|
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// add promise support
|
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['createOffer', 'createAnswer'].forEach(function(method) {
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var nativeMethod = webkitRTCPeerConnection.prototype[method];
|
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webkitRTCPeerConnection.prototype[method] = function() {
|
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var self = this;
|
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if (arguments.length < 1 || (arguments.length === 1 &&
|
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|
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typeof(arguments[0]) === 'object')) {
|
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var opts = arguments.length === 1 ? arguments[0] : undefined;
|
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return new Promise(function(resolve, reject) {
|
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|
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nativeMethod.apply(self, [resolve, reject, opts]);
|
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});
|
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|
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}
|
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return nativeMethod.apply(this, arguments);
|
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|
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};
|
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|
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});
|
||
|
|
|
||
|
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['setLocalDescription', 'setRemoteDescription', 'addIceCandidate']
|
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|
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.forEach(function(method) {
|
||
|
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var nativeMethod = webkitRTCPeerConnection.prototype[method];
|
||
|
|
webkitRTCPeerConnection.prototype[method] = function() {
|
||
|
|
var args = arguments;
|
||
|
|
var self = this;
|
||
|
|
args[0] = new ((method === 'addIceCandidate')?
|
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|
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RTCIceCandidate : RTCSessionDescription)(args[0]);
|
||
|
|
return new Promise(function(resolve, reject) {
|
||
|
|
nativeMethod.apply(self, [args[0],
|
||
|
|
function() {
|
||
|
|
resolve();
|
||
|
|
if (args.length >= 2) {
|
||
|
|
args[1].apply(null, []);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
function(err) {
|
||
|
|
reject(err);
|
||
|
|
if (args.length >= 3) {
|
||
|
|
args[2].apply(null, [err]);
|
||
|
|
}
|
||
|
|
}]
|
||
|
|
);
|
||
|
|
});
|
||
|
|
};
|
||
|
|
});
|
||
|
|
},
|
||
|
|
|
||
|
|
// Attach a media stream to an element.
|
||
|
|
attachMediaStream: function(element, stream) {
|
||
|
|
logging('DEPRECATED, attachMediaStream will soon be removed.');
|
||
|
|
if (browserDetails.version >= 43) {
|
||
|
|
element.srcObject = stream;
|
||
|
|
} else if (typeof element.src !== 'undefined') {
|
||
|
|
element.src = URL.createObjectURL(stream);
|
||
|
|
} else {
|
||
|
|
logging('Error attaching stream to element.');
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
reattachMediaStream: function(to, from) {
|
||
|
|
logging('DEPRECATED, reattachMediaStream will soon be removed.');
|
||
|
|
if (browserDetails.version >= 43) {
|
||
|
|
to.srcObject = from.srcObject;
|
||
|
|
} else {
|
||
|
|
to.src = from.src;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
// Expose public methods.
|
||
|
|
module.exports = {
|
||
|
|
shimOnTrack: chromeShim.shimOnTrack,
|
||
|
|
shimSourceObject: chromeShim.shimSourceObject,
|
||
|
|
shimPeerConnection: chromeShim.shimPeerConnection,
|
||
|
|
shimGetUserMedia: require('./getusermedia'),
|
||
|
|
attachMediaStream: chromeShim.attachMediaStream,
|
||
|
|
reattachMediaStream: chromeShim.reattachMediaStream
|
||
|
|
};
|
||
|
|
|
||
|
|
},{"../utils.js":9,"./getusermedia":3}],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';
|
||
|
|
var logging = require('../utils.js').log;
|
||
|
|
|
||
|
|
// Expose public methods.
|
||
|
|
module.exports = function() {
|
||
|
|
var constraintsToChrome_ = function(c) {
|
||
|
|
if (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(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 getUserMedia_ = function(constraints, onSuccess, onError) {
|
||
|
|
constraints = JSON.parse(JSON.stringify(constraints));
|
||
|
|
if (constraints.audio) {
|
||
|
|
constraints.audio = constraintsToChrome_(constraints.audio);
|
||
|
|
}
|
||
|
|
if (constraints.video) {
|
||
|
|
constraints.video = constraintsToChrome_(constraints.video);
|
||
|
|
}
|
||
|
|
logging('chrome: ' + JSON.stringify(constraints));
|
||
|
|
return navigator.webkitGetUserMedia(constraints, onSuccess, onError);
|
||
|
|
};
|
||
|
|
navigator.getUserMedia = getUserMedia_;
|
||
|
|
|
||
|
|
// Returns the result of getUserMedia as a Promise.
|
||
|
|
var getUserMediaPromise_ = function(constraints) {
|
||
|
|
return new Promise(function(resolve, reject) {
|
||
|
|
navigator.getUserMedia(constraints, resolve, reject);
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
if (!navigator.mediaDevices) {
|
||
|
|
navigator.mediaDevices = {
|
||
|
|
getUserMedia: getUserMediaPromise_,
|
||
|
|
enumerateDevices: function() {
|
||
|
|
return new Promise(function(resolve) {
|
||
|
|
var kinds = {audio: 'audioinput', video: 'videoinput'};
|
||
|
|
return MediaStreamTrack.getSources(function(devices) {
|
||
|
|
resolve(devices.map(function(device) {
|
||
|
|
return {label: device.label,
|
||
|
|
kind: kinds[device.kind],
|
||
|
|
deviceId: device.id,
|
||
|
|
groupId: ''};
|
||
|
|
}));
|
||
|
|
});
|
||
|
|
});
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
// A shim for getUserMedia method on the mediaDevices object.
|
||
|
|
// TODO(KaptenJansson) remove once implemented in Chrome stable.
|
||
|
|
if (!navigator.mediaDevices.getUserMedia) {
|
||
|
|
navigator.mediaDevices.getUserMedia = function(constraints) {
|
||
|
|
return getUserMediaPromise_(constraints);
|
||
|
|
};
|
||
|
|
} else {
|
||
|
|
// Even though Chrome 45 has navigator.mediaDevices and a getUserMedia
|
||
|
|
// function which returns a Promise, it does not accept spec-style
|
||
|
|
// constraints.
|
||
|
|
var origGetUserMedia = navigator.mediaDevices.getUserMedia.
|
||
|
|
bind(navigator.mediaDevices);
|
||
|
|
navigator.mediaDevices.getUserMedia = function(c) {
|
||
|
|
if (c) {
|
||
|
|
logging('spec: ' + JSON.stringify(c)); // whitespace for alignment
|
||
|
|
c.audio = constraintsToChrome_(c.audio);
|
||
|
|
c.video = constraintsToChrome_(c.video);
|
||
|
|
logging('chrome: ' + JSON.stringify(c));
|
||
|
|
}
|
||
|
|
return origGetUserMedia(c);
|
||
|
|
}.bind(this);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Dummy devicechange event methods.
|
||
|
|
// TODO(KaptenJansson) remove once implemented in Chrome stable.
|
||
|
|
if (typeof navigator.mediaDevices.addEventListener === 'undefined') {
|
||
|
|
navigator.mediaDevices.addEventListener = function() {
|
||
|
|
logging('Dummy mediaDevices.addEventListener called.');
|
||
|
|
};
|
||
|
|
}
|
||
|
|
if (typeof navigator.mediaDevices.removeEventListener === 'undefined') {
|
||
|
|
navigator.mediaDevices.removeEventListener = function() {
|
||
|
|
logging('Dummy mediaDevices.removeEventListener called.');
|
||
|
|
};
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
},{"../utils.js":9}],4:[function(require,module,exports){
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
||
|
|
*
|
||
|
|
* Use of this source code is governed by a BSD-style license
|
||
|
|
* that can be found in the LICENSE file in the root of the source
|
||
|
|
* tree.
|
||
|
|
*/
|
||
|
|
/* eslint-env node */
|
||
|
|
'use strict';
|
||
|
|
|
||
|
|
// SDP helpers.
|
||
|
|
var SDPUtils = {};
|
||
|
|
|
||
|
|
// 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 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: parts[1],
|
||
|
|
protocol: parts[2].toLowerCase(),
|
||
|
|
priority: parseInt(parts[3], 10),
|
||
|
|
ip: parts[4],
|
||
|
|
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;
|
||
|
|
default: // Unknown extensions are silently ignored.
|
||
|
|
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.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); // was: relAddr
|
||
|
|
sdp.push('rport');
|
||
|
|
sdp.push(candidate.relatedPort); // was: relPort
|
||
|
|
}
|
||
|
|
if (candidate.tcpType && candidate.protocol.toLowerCase() === 'tcp') {
|
||
|
|
sdp.push('tcptype');
|
||
|
|
sdp.push(candidate.tcpType);
|
||
|
|
}
|
||
|
|
return 'candidate:' + sdp.join(' ');
|
||
|
|
};
|
||
|
|
|
||
|
|
// 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
|
||
|
|
// was: channels
|
||
|
|
parsed.numChannels = parts.length === 3 ? parseInt(parts[2], 10) : 1;
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
return 'a=rtpmap:' + pt + ' ' + codec.name + '/' + codec.clockRate +
|
||
|
|
(codec.numChannels !== 1 ? '/' + codec.numChannels : '') + '\r\n';
|
||
|
|
};
|
||
|
|
|
||
|
|
// Parses an a=extmap line (headerextension from RFC 5285). Sample input:
|
||
|
|
// a=extmap:2 urn:ietf:params:rtp-hdrext:toffset
|
||
|
|
SDPUtils.parseExtmap = function(line) {
|
||
|
|
var parts = line.substr(9).split(' ');
|
||
|
|
return {
|
||
|
|
id: parseInt(parts[0], 10),
|
||
|
|
uri: parts[1]
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
// Generates a=extmap line from RTCRtpHeaderExtensionParameters or
|
||
|
|
// RTCRtpHeaderExtension.
|
||
|
|
SDPUtils.writeExtmap = function(headerExtension) {
|
||
|
|
return 'a=extmap:' + (headerExtension.id || headerExtension.preferredId) +
|
||
|
|
' ' + 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) {
|
||
|
|
params.push(param + '=' + codec.parameters[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 +
|
||
|
|
'\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;
|
||
|
|
};
|
||
|
|
|
||
|
|
// 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.splitLines(mediaSection);
|
||
|
|
// Search in session part, too.
|
||
|
|
lines = lines.concat(SDPUtils.splitLines(sessionpart));
|
||
|
|
var fpLine = lines.filter(function(line) {
|
||
|
|
return line.indexOf('a=fingerprint:') === 0;
|
||
|
|
})[0].substr(14);
|
||
|
|
// Note: a=setup line is ignored since we use the 'auto' role.
|
||
|
|
var dtlsParameters = {
|
||
|
|
role: 'auto',
|
||
|
|
fingerprints: [{
|
||
|
|
algorithm: fpLine.split(' ')[0],
|
||
|
|
value: fpLine.split(' ')[1]
|
||
|
|
}]
|
||
|
|
};
|
||
|
|
return dtlsParameters;
|
||
|
|
};
|
||
|
|
|
||
|
|
// 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);
|
||
|
|
});
|
||
|
|
// FIXME: add headerExtensions, fecMechanismş and rtcp.
|
||
|
|
sdp += 'a=rtcp-mux\r\n';
|
||
|
|
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.split(' ');
|
||
|
|
parts.shift();
|
||
|
|
return parts.map(function(part) {
|
||
|
|
return parseInt(part, 10);
|
||
|
|
});
|
||
|
|
});
|
||
|
|
if (flows.length > 0 && flows[0].length > 1 && flows[0][0] === primarySsrc) {
|
||
|
|
secondarySsrc = flows[0][1];
|
||
|
|
}
|
||
|
|
|
||
|
|
description.codecs.forEach(function(codec) {
|
||
|
|
if (codec.name.toUpperCase() === 'RTX' && codec.parameters.apt) {
|
||
|
|
var encParam = {
|
||
|
|
ssrc: primarySsrc,
|
||
|
|
codecPayloadType: parseInt(codec.parameters.apt, 10),
|
||
|
|
rtx: {
|
||
|
|
ssrc: secondarySsrc
|
||
|
|
}
|
||
|
|
};
|
||
|
|
encodingParameters.push(encParam);
|
||
|
|
if (hasRed) {
|
||
|
|
encParam = JSON.parse(JSON.stringify(encParam));
|
||
|
|
encParam.fec = {
|
||
|
|
ssrc: secondarySsrc,
|
||
|
|
mechanism: hasUlpfec ? 'red+ulpfec' : 'red'
|
||
|
|
};
|
||
|
|
encodingParameters.push(encParam);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
if (encodingParameters.length === 0 && primarySsrc) {
|
||
|
|
encodingParameters.push({
|
||
|
|
ssrc: primarySsrc
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
// we support both b=AS and b=TIAS but interpret AS as TIAS.
|
||
|
|
var bandwidth = SDPUtils.matchPrefix(mediaSection, 'b=');
|
||
|
|
if (bandwidth.length) {
|
||
|
|
if (bandwidth[0].indexOf('b=TIAS:') === 0) {
|
||
|
|
bandwidth = parseInt(bandwidth[0].substr(7), 10);
|
||
|
|
} else if (bandwidth[0].indexOf('b=AS:') === 0) {
|
||
|
|
bandwidth = parseInt(bandwidth[0].substr(5), 10);
|
||
|
|
}
|
||
|
|
encodingParameters.forEach(function(params) {
|
||
|
|
params.maxBitrate = bandwidth;
|
||
|
|
});
|
||
|
|
}
|
||
|
|
return encodingParameters;
|
||
|
|
};
|
||
|
|
|
||
|
|
SDPUtils.writeSessionBoilerplate = function() {
|
||
|
|
// FIXME: sess-id should be an NTP timestamp.
|
||
|
|
return 'v=0\r\n' +
|
||
|
|
'o=thisisadapterortc 8169639915646943137 2 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.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';
|
||
|
|
}
|
||
|
|
|
||
|
|
// FIXME: for RTX there might be multiple SSRCs. Not implemented in Edge yet.
|
||
|
|
if (transceiver.rtpSender) {
|
||
|
|
var msid = 'msid:' + stream.id + ' ' +
|
||
|
|
transceiver.rtpSender.track.id + '\r\n';
|
||
|
|
sdp += 'a=' + msid;
|
||
|
|
sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
|
||
|
|
' ' + msid;
|
||
|
|
}
|
||
|
|
// FIXME: this should be written by writeRtpDescription.
|
||
|
|
sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].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';
|
||
|
|
};
|
||
|
|
|
||
|
|
// Expose public methods.
|
||
|
|
module.exports = SDPUtils;
|
||
|
|
|
||
|
|
},{}],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';
|
||
|
|
|
||
|
|
var SDPUtils = require('./edge_sdp');
|
||
|
|
var logging = require('../utils').log;
|
||
|
|
|
||
|
|
var edgeShim = {
|
||
|
|
shimPeerConnection: function() {
|
||
|
|
if (window.RTCIceGatherer) {
|
||
|
|
// ORTC defines an RTCIceCandidate object but no constructor.
|
||
|
|
// Not implemented in Edge.
|
||
|
|
if (!window.RTCIceCandidate) {
|
||
|
|
window.RTCIceCandidate = function(args) {
|
||
|
|
return args;
|
||
|
|
};
|
||
|
|
}
|
||
|
|
// ORTC does not have a session description object but
|
||
|
|
// other browsers (i.e. Chrome) that will support both PC and ORTC
|
||
|
|
// in the future might have this defined already.
|
||
|
|
if (!window.RTCSessionDescription) {
|
||
|
|
window.RTCSessionDescription = function(args) {
|
||
|
|
return args;
|
||
|
|
};
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
window.RTCPeerConnection = function(config) {
|
||
|
|
var self = this;
|
||
|
|
|
||
|
|
var _eventTarget = document.createDocumentFragment();
|
||
|
|
['addEventListener', 'removeEventListener', 'dispatchEvent']
|
||
|
|
.forEach(function(method) {
|
||
|
|
self[method] = _eventTarget[method].bind(_eventTarget);
|
||
|
|
});
|
||
|
|
|
||
|
|
this.onicecandidate = null;
|
||
|
|
this.onaddstream = null;
|
||
|
|
this.ontrack = null;
|
||
|
|
this.onremovestream = null;
|
||
|
|
this.onsignalingstatechange = null;
|
||
|
|
this.oniceconnectionstatechange = null;
|
||
|
|
this.onnegotiationneeded = null;
|
||
|
|
this.ondatachannel = null;
|
||
|
|
|
||
|
|
this.localStreams = [];
|
||
|
|
this.remoteStreams = [];
|
||
|
|
this.getLocalStreams = function() {
|
||
|
|
return self.localStreams;
|
||
|
|
};
|
||
|
|
this.getRemoteStreams = function() {
|
||
|
|
return self.remoteStreams;
|
||
|
|
};
|
||
|
|
|
||
|
|
this.localDescription = new RTCSessionDescription({
|
||
|
|
type: '',
|
||
|
|
sdp: ''
|
||
|
|
});
|
||
|
|
this.remoteDescription = new RTCSessionDescription({
|
||
|
|
type: '',
|
||
|
|
sdp: ''
|
||
|
|
});
|
||
|
|
this.signalingState = 'stable';
|
||
|
|
this.iceConnectionState = 'new';
|
||
|
|
this.iceGatheringState = 'new';
|
||
|
|
|
||
|
|
this.iceOptions = {
|
||
|
|
gatherPolicy: 'all',
|
||
|
|
iceServers: []
|
||
|
|
};
|
||
|
|
if (config && config.iceTransportPolicy) {
|
||
|
|
switch (config.iceTransportPolicy) {
|
||
|
|
case 'all':
|
||
|
|
case 'relay':
|
||
|
|
this.iceOptions.gatherPolicy = config.iceTransportPolicy;
|
||
|
|
break;
|
||
|
|
case 'none':
|
||
|
|
// FIXME: remove once implementation and spec have added this.
|
||
|
|
throw new TypeError('iceTransportPolicy "none" not supported');
|
||
|
|
default:
|
||
|
|
// don't set iceTransportPolicy.
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (config && config.iceServers) {
|
||
|
|
// Edge does not like
|
||
|
|
// 1) stun:
|
||
|
|
// 2) turn: that does not have all of turn:host:port?transport=udp
|
||
|
|
this.iceOptions.iceServers = config.iceServers.filter(function(server) {
|
||
|
|
if (server && server.urls) {
|
||
|
|
server.urls = server.urls.filter(function(url) {
|
||
|
|
return url.indexOf('turn:') === 0 &&
|
||
|
|
url.indexOf('transport=udp') !== -1;
|
||
|
|
})[0];
|
||
|
|
return !!server.urls;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
// per-track iceGathers, iceTransports, dtlsTransports, rtpSenders, ...
|
||
|
|
// everything that is needed to describe a SDP m-line.
|
||
|
|
this.transceivers = [];
|
||
|
|
|
||
|
|
// since the iceGatherer is currently created in createOffer but we
|
||
|
|
// must not emit candidates until after setLocalDescription we buffer
|
||
|
|
// them in this array.
|
||
|
|
this._localIceCandidatesBuffer = [];
|
||
|
|
};
|
||
|
|
|
||
|
|
window.RTCPeerConnection.prototype._emitBufferedCandidates = function() {
|
||
|
|
var self = this;
|
||
|
|
var sections = SDPUtils.splitSections(self.localDescription.sdp);
|
||
|
|
// FIXME: need to apply ice candidates in a way which is async but
|
||
|
|
// in-order
|
||
|
|
this._localIceCandidatesBuffer.forEach(function(event) {
|
||
|
|
var end = !event.candidate || Object.keys(event.candidate).length === 0;
|
||
|
|
if (end) {
|
||
|
|
for (var j = 1; j < sections.length; j++) {
|
||
|
|
if (sections[j].indexOf('\r\na=end-of-candidates\r\n') === -1) {
|
||
|
|
sections[j] += 'a=end-of-candidates\r\n';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else if (event.candidate.candidate.indexOf('typ endOfCandidates')
|
||
|
|
=== -1) {
|
||
|
|
sections[event.candidate.sdpMLineIndex + 1] +=
|
||
|
|
'a=' + event.candidate.candidate + '\r\n';
|
||
|
|
}
|
||
|
|
self.localDescription.sdp = sections.join('');
|
||
|
|
self.dispatchEvent(event);
|
||
|
|
if (self.onicecandidate !== null) {
|
||
|
|
self.onicecandidate(event);
|
||
|
|
}
|
||
|
|
if (!event.candidate && self.iceGatheringState !== 'complete') {
|
||
|
|
var complete = self.transceivers.every(function(transceiver) {
|
||
|
|
return transceiver.iceGatherer &&
|
||
|
|
transceiver.iceGatherer.state === 'completed';
|
||
|
|
});
|
||
|
|
if (complete) {
|
||
|
|
self.iceGatheringState = 'complete';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
this._localIceCandidatesBuffer = [];
|
||
|
|
};
|
||
|
|
|
||
|
|
window.RTCPeerConnection.prototype.addStream = function(stream) {
|
||
|
|
// Clone is necessary for local demos mostly, attaching directly
|
||
|
|
// to two different senders does not work (build 10547).
|
||
|
|
this.localStreams.push(stream.clone());
|
||
|
|
this._maybeFireNegotiationNeeded();
|
||
|
|
};
|
||
|
|
|
||
|
|
window.RTCPeerConnection.prototype.removeStream = function(stream) {
|
||
|
|
var idx = this.localStreams.indexOf(stream);
|
||
|
|
if (idx > -1) {
|
||
|
|
this.localStreams.splice(idx, 1);
|
||
|
|
this._maybeFireNegotiationNeeded();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
// Determines the intersection of local and remote capabilities.
|
||
|
|
window.RTCPeerConnection.prototype._getCommonCapabilities =
|
||
|
|
function(localCapabilities, remoteCapabilities) {
|
||
|
|
var commonCapabilities = {
|
||
|
|
codecs: [],
|
||
|
|
headerExtensions: [],
|
||
|
|
fecMechanisms: []
|
||
|
|
};
|
||
|
|
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 &&
|
||
|
|
lCodec.numChannels === rCodec.numChannels) {
|
||
|
|
// push rCodec so we reply with offerer payload type
|
||
|
|
commonCapabilities.codecs.push(rCodec);
|
||
|
|
|
||
|
|
// FIXME: also need to determine intersection between
|
||
|
|
// .rtcpFeedback and .parameters
|
||
|
|
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;
|
||
|
|
};
|
||
|
|
|
||
|
|
// Create ICE gatherer, ICE transport and DTLS transport.
|
||
|
|
window.RTCPeerConnection.prototype._createIceAndDtlsTransports =
|
||
|
|
function(mid, sdpMLineIndex) {
|
||
|
|
var self = this;
|
||
|
|
var iceGatherer = new RTCIceGatherer(self.iceOptions);
|
||
|
|
var iceTransport = new RTCIceTransport(iceGatherer);
|
||
|
|
iceGatherer.onlocalcandidate = function(evt) {
|
||
|
|
var event = new Event('icecandidate');
|
||
|
|
event.candidate = {sdpMid: mid, sdpMLineIndex: sdpMLineIndex};
|
||
|
|
|
||
|
|
var cand = evt.candidate;
|
||
|
|
var end = !cand || Object.keys(cand).length === 0;
|
||
|
|
// Edge emits an empty object for RTCIceCandidateComplete‥
|
||
|
|
if (end) {
|
||
|
|
// polyfill since RTCIceGatherer.state is not implemented in
|
||
|
|
// Edge 10547 yet.
|
||
|
|
if (iceGatherer.state === undefined) {
|
||
|
|
iceGatherer.state = 'completed';
|
||
|
|
}
|
||
|
|
|
||
|
|
// Emit a candidate with type endOfCandidates to make the samples
|
||
|
|
// work. Edge requires addIceCandidate with this empty candidate
|
||
|
|
// to start checking. The real solution is to signal
|
||
|
|
// end-of-candidates to the other side when getting the null
|
||
|
|
// candidate but some apps (like the samples) don't do that.
|
||
|
|
event.candidate.candidate =
|
||
|
|
'candidate:1 1 udp 1 0.0.0.0 9 typ endOfCandidates';
|
||
|
|
} else {
|
||
|
|
// RTCIceCandidate doesn't have a component, needs to be added
|
||
|
|
cand.component = iceTransport.component === 'RTCP' ? 2 : 1;
|
||
|
|
event.candidate.candidate = SDPUtils.writeCandidate(cand);
|
||
|
|
}
|
||
|
|
|
||
|
|
var complete = self.transceivers.every(function(transceiver) {
|
||
|
|
return transceiver.iceGatherer &&
|
||
|
|
transceiver.iceGatherer.state === 'completed';
|
||
|
|
});
|
||
|
|
|
||
|
|
// Emit candidate if localDescription is set.
|
||
|
|
// Also emits null candidate when all gatherers are complete.
|
||
|
|
switch (self.iceGatheringState) {
|
||
|
|
case 'new':
|
||
|
|
self._localIceCandidatesBuffer.push(event);
|
||
|
|
if (end && complete) {
|
||
|
|
self._localIceCandidatesBuffer.push(
|
||
|
|
new Event('icecandidate'));
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case 'gathering':
|
||
|
|
self._emitBufferedCandidates();
|
||
|
|
self.dispatchEvent(event);
|
||
|
|
if (self.onicecandidate !== null) {
|
||
|
|
self.onicecandidate(event);
|
||
|
|
}
|
||
|
|
if (complete) {
|
||
|
|
self.dispatchEvent(new Event('icecandidate'));
|
||
|
|
if (self.onicecandidate !== null) {
|
||
|
|
self.onicecandidate(new Event('icecandidate'));
|
||
|
|
}
|
||
|
|
self.iceGatheringState = 'complete';
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case 'complete':
|
||
|
|
// should not happen... currently!
|
||
|
|
break;
|
||
|
|
default: // no-op.
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
iceTransport.onicestatechange = function() {
|
||
|
|
self._updateConnectionState();
|
||
|
|
};
|
||
|
|
|
||
|
|
var dtlsTransport = new RTCDtlsTransport(iceTransport);
|
||
|
|
dtlsTransport.ondtlsstatechange = function() {
|
||
|
|
self._updateConnectionState();
|
||
|
|
};
|
||
|
|
dtlsTransport.onerror = function() {
|
||
|
|
// onerror does not set state to failed by itself.
|
||
|
|
dtlsTransport.state = 'failed';
|
||
|
|
self._updateConnectionState();
|
||
|
|
};
|
||
|
|
|
||
|
|
return {
|
||
|
|
iceGatherer: iceGatherer,
|
||
|
|
iceTransport: iceTransport,
|
||
|
|
dtlsTransport: dtlsTransport
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
// Start the RTP Sender and Receiver for a transceiver.
|
||
|
|
window.RTCPeerConnection.prototype._transceive = function(transceiver,
|
||
|
|
send, recv) {
|
||
|
|
var params = this._getCommonCapabilities(transceiver.localCapabilities,
|
||
|
|
transceiver.remoteCapabilities);
|
||
|
|
if (send && transceiver.rtpSender) {
|
||
|
|
params.encodings = transceiver.sendEncodingParameters;
|
||
|
|
params.rtcp = {
|
||
|
|
cname: SDPUtils.localCName
|
||
|
|
};
|
||
|
|
if (transceiver.recvEncodingParameters.length) {
|
||
|
|
params.rtcp.ssrc = transceiver.recvEncodingParameters[0].ssrc;
|
||
|
|
}
|
||
|
|
transceiver.rtpSender.send(params);
|
||
|
|
}
|
||
|
|
if (recv && transceiver.rtpReceiver) {
|
||
|
|
params.encodings = transceiver.recvEncodingParameters;
|
||
|
|
params.rtcp = {
|
||
|
|
cname: transceiver.cname
|
||
|
|
};
|
||
|
|
if (transceiver.sendEncodingParameters.length) {
|
||
|
|
params.rtcp.ssrc = transceiver.sendEncodingParameters[0].ssrc;
|
||
|
|
}
|
||
|
|
transceiver.rtpReceiver.receive(params);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
window.RTCPeerConnection.prototype.setLocalDescription =
|
||
|
|
function(description) {
|
||
|
|
var self = this;
|
||
|
|
var sections;
|
||
|
|
var sessionpart;
|
||
|
|
if (description.type === 'offer') {
|
||
|
|
// FIXME: What was the purpose of this empty if statement?
|
||
|
|
// if (!this._pendingOffer) {
|
||
|
|
// } else {
|
||
|
|
if (this._pendingOffer) {
|
||
|
|
// 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);
|
||
|
|
self._pendingOffer[sdpMLineIndex].localCapabilities = caps;
|
||
|
|
});
|
||
|
|
this.transceivers = this._pendingOffer;
|
||
|
|
delete this._pendingOffer;
|
||
|
|
}
|
||
|
|
} else if (description.type === 'answer') {
|
||
|
|
sections = SDPUtils.splitSections(self.remoteDescription.sdp);
|
||
|
|
sessionpart = sections.shift();
|
||
|
|
sections.forEach(function(mediaSection, sdpMLineIndex) {
|
||
|
|
var transceiver = self.transceivers[sdpMLineIndex];
|
||
|
|
var iceGatherer = transceiver.iceGatherer;
|
||
|
|
var iceTransport = transceiver.iceTransport;
|
||
|
|
var dtlsTransport = transceiver.dtlsTransport;
|
||
|
|
var localCapabilities = transceiver.localCapabilities;
|
||
|
|
var remoteCapabilities = transceiver.remoteCapabilities;
|
||
|
|
var rejected = mediaSection.split('\n', 1)[0]
|
||
|
|
.split(' ', 2)[1] === '0';
|
||
|
|
|
||
|
|
if (!rejected) {
|
||
|
|
var remoteIceParameters = SDPUtils.getIceParameters(
|
||
|
|
mediaSection, sessionpart);
|
||
|
|
iceTransport.start(iceGatherer, remoteIceParameters,
|
||
|
|
'controlled');
|
||
|
|
|
||
|
|
var remoteDtlsParameters = SDPUtils.getDtlsParameters(
|
||
|
|
mediaSection, sessionpart);
|
||
|
|
dtlsTransport.start(remoteDtlsParameters);
|
||
|
|
|
||
|
|
// Calculate intersection of capabilities.
|
||
|
|
var params = self._getCommonCapabilities(localCapabilities,
|
||
|
|
remoteCapabilities);
|
||
|
|
|
||
|
|
// Start the RTCRtpSender. The RTCRtpReceiver for this
|
||
|
|
// transceiver has already been started in setRemoteDescription.
|
||
|
|
self._transceive(transceiver,
|
||
|
|
params.codecs.length > 0,
|
||
|
|
false);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
this.localDescription = {
|
||
|
|
type: description.type,
|
||
|
|
sdp: description.sdp
|
||
|
|
};
|
||
|
|
switch (description.type) {
|
||
|
|
case 'offer':
|
||
|
|
this._updateSignalingState('have-local-offer');
|
||
|
|
break;
|
||
|
|
case 'answer':
|
||
|
|
this._updateSignalingState('stable');
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
throw new TypeError('unsupported type "' + description.type +
|
||
|
|
'"');
|
||
|
|
}
|
||
|
|
|
||
|
|
// If a success callback was provided, emit ICE candidates after it
|
||
|
|
// has been executed. Otherwise, emit callback after the Promise is
|
||
|
|
// resolved.
|
||
|
|
var hasCallback = arguments.length > 1 &&
|
||
|
|
typeof arguments[1] === 'function';
|
||
|
|
if (hasCallback) {
|
||
|
|
var cb = arguments[1];
|
||
|
|
window.setTimeout(function() {
|
||
|
|
cb();
|
||
|
|
if (self.iceGatheringState === 'new') {
|
||
|
|
self.iceGatheringState = 'gathering';
|
||
|
|
}
|
||
|
|
self._emitBufferedCandidates();
|
||
|
|
}, 0);
|
||
|
|
}
|
||
|
|
var p = Promise.resolve();
|
||
|
|
p.then(function() {
|
||
|
|
if (!hasCallback) {
|
||
|
|
if (self.iceGatheringState === 'new') {
|
||
|
|
self.iceGatheringState = 'gathering';
|
||
|
|
}
|
||
|
|
// Usually candidates will be emitted earlier.
|
||
|
|
window.setTimeout(self._emitBufferedCandidates.bind(self), 500);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
return p;
|
||
|
|
};
|
||
|
|
|
||
|
|
window.RTCPeerConnection.prototype.setRemoteDescription =
|
||
|
|
function(description) {
|
||
|
|
var self = this;
|
||
|
|
var stream = new MediaStream();
|
||
|
|
var receiverList = [];
|
||
|
|
var sections = SDPUtils.splitSections(description.sdp);
|
||
|
|
var sessionpart = sections.shift();
|
||
|
|
sections.forEach(function(mediaSection, sdpMLineIndex) {
|
||
|
|
var lines = SDPUtils.splitLines(mediaSection);
|
||
|
|
var mline = lines[0].substr(2).split(' ');
|
||
|
|
var kind = mline[0];
|
||
|
|
var rejected = mline[1] === '0';
|
||
|
|
var direction = SDPUtils.getDirection(mediaSection, sessionpart);
|
||
|
|
|
||
|
|
var transceiver;
|
||
|
|
var iceGatherer;
|
||
|
|
var iceTransport;
|
||
|
|
var dtlsTransport;
|
||
|
|
var rtpSender;
|
||
|
|
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);
|
||
|
|
}
|
||
|
|
recvEncodingParameters =
|
||
|
|
SDPUtils.parseRtpEncodingParameters(mediaSection);
|
||
|
|
|
||
|
|
var mid = SDPUtils.matchPrefix(mediaSection, 'a=mid:');
|
||
|
|
if (mid.length) {
|
||
|
|
mid = mid[0].substr(6);
|
||
|
|
} else {
|
||
|
|
mid = SDPUtils.generateIdentifier();
|
||
|
|
}
|
||
|
|
|
||
|
|
var cname;
|
||
|
|
// Gets the first SSRC. Note that with RTX there might be multiple
|
||
|
|
// SSRCs.
|
||
|
|
var remoteSsrc = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
|
||
|
|
.map(function(line) {
|
||
|
|
return SDPUtils.parseSsrcMedia(line);
|
||
|
|
})
|
||
|
|
.filter(function(obj) {
|
||
|
|
return obj.attribute === 'cname';
|
||
|
|
})[0];
|
||
|
|
if (remoteSsrc) {
|
||
|
|
cname = remoteSsrc.value;
|
||
|
|
}
|
||
|
|
|
||
|
|
var isComplete = SDPUtils.matchPrefix(mediaSection,
|
||
|
|
'a=end-of-candidates').length > 0;
|
||
|
|
var cands = SDPUtils.matchPrefix(mediaSection, 'a=candidate:')
|
||
|
|
.map(function(cand) {
|
||
|
|
return SDPUtils.parseCandidate(cand);
|
||
|
|
})
|
||
|
|
.filter(function(cand) {
|
||
|
|
return cand.component === '1';
|
||
|
|
});
|
||
|
|
if (description.type === 'offer' && !rejected) {
|
||
|
|
var transports = self._createIceAndDtlsTransports(mid,
|
||
|
|
sdpMLineIndex);
|
||
|
|
if (isComplete) {
|
||
|
|
transports.iceTransport.setRemoteCandidates(cands);
|
||
|
|
}
|
||
|
|
|
||
|
|
localCapabilities = RTCRtpReceiver.getCapabilities(kind);
|
||
|
|
sendEncodingParameters = [{
|
||
|
|
ssrc: (2 * sdpMLineIndex + 2) * 1001
|
||
|
|
}];
|
||
|
|
|
||
|
|
rtpReceiver = new RTCRtpReceiver(transports.dtlsTransport, kind);
|
||
|
|
|
||
|
|
track = rtpReceiver.track;
|
||
|
|
receiverList.push([track, rtpReceiver]);
|
||
|
|
// FIXME: not correct when there are multiple streams but that is
|
||
|
|
// not currently supported in this shim.
|
||
|
|
stream.addTrack(track);
|
||
|
|
|
||
|
|
// FIXME: look at direction.
|
||
|
|
if (self.localStreams.length > 0 &&
|
||
|
|
self.localStreams[0].getTracks().length >= sdpMLineIndex) {
|
||
|
|
// FIXME: actually more complicated, needs to match types etc
|
||
|
|
var localtrack = self.localStreams[0]
|
||
|
|
.getTracks()[sdpMLineIndex];
|
||
|
|
rtpSender = new RTCRtpSender(localtrack,
|
||
|
|
transports.dtlsTransport);
|
||
|
|
}
|
||
|
|
|
||
|
|
self.transceivers[sdpMLineIndex] = {
|
||
|
|
iceGatherer: transports.iceGatherer,
|
||
|
|
iceTransport: transports.iceTransport,
|
||
|
|
dtlsTransport: transports.dtlsTransport,
|
||
|
|
localCapabilities: localCapabilities,
|
||
|
|
remoteCapabilities: remoteCapabilities,
|
||
|
|
rtpSender: rtpSender,
|
||
|
|
rtpReceiver: rtpReceiver,
|
||
|
|
kind: kind,
|
||
|
|
mid: mid,
|
||
|
|
cname: cname,
|
||
|
|
sendEncodingParameters: sendEncodingParameters,
|
||
|
|
recvEncodingParameters: recvEncodingParameters
|
||
|
|
};
|
||
|
|
// Start the RTCRtpReceiver now. The RTPSender is started in
|
||
|
|
// setLocalDescription.
|
||
|
|
self._transceive(self.transceivers[sdpMLineIndex],
|
||
|
|
false,
|
||
|
|
direction === 'sendrecv' || direction === 'sendonly');
|
||
|
|
} else if (description.type === 'answer' && !rejected) {
|
||
|
|
transceiver = self.transceivers[sdpMLineIndex];
|
||
|
|
iceGatherer = transceiver.iceGatherer;
|
||
|
|
iceTransport = transceiver.iceTransport;
|
||
|
|
dtlsTransport = transceiver.dtlsTransport;
|
||
|
|
rtpSender = transceiver.rtpSender;
|
||
|
|
rtpReceiver = transceiver.rtpReceiver;
|
||
|
|
sendEncodingParameters = transceiver.sendEncodingParameters;
|
||
|
|
localCapabilities = transceiver.localCapabilities;
|
||
|
|
|
||
|
|
self.transceivers[sdpMLineIndex].recvEncodingParameters =
|
||
|
|
recvEncodingParameters;
|
||
|
|
self.transceivers[sdpMLineIndex].remoteCapabilities =
|
||
|
|
remoteCapabilities;
|
||
|
|
self.transceivers[sdpMLineIndex].cname = cname;
|
||
|
|
|
||
|
|
if (isComplete) {
|
||
|
|
iceTransport.setRemoteCandidates(cands);
|
||
|
|
}
|
||
|
|
iceTransport.start(iceGatherer, remoteIceParameters,
|
||
|
|
'controlling');
|
||
|
|
dtlsTransport.start(remoteDtlsParameters);
|
||
|
|
|
||
|
|
self._transceive(transceiver,
|
||
|
|
direction === 'sendrecv' || direction === 'recvonly',
|
||
|
|
direction === 'sendrecv' || direction === 'sendonly');
|
||
|
|
|
||
|
|
if (rtpReceiver &&
|
||
|
|
(direction === 'sendrecv' || direction === 'sendonly')) {
|
||
|
|
track = rtpReceiver.track;
|
||
|
|
receiverList.push([track, rtpReceiver]);
|
||
|
|
stream.addTrack(track);
|
||
|
|
} else {
|
||
|
|
// FIXME: actually the receiver should be created later.
|
||
|
|
delete transceiver.rtpReceiver;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
this.remoteDescription = {
|
||
|
|
type: description.type,
|
||
|
|
sdp: description.sdp
|
||
|
|
};
|
||
|
|
switch (description.type) {
|
||
|
|
case 'offer':
|
||
|
|
this._updateSignalingState('have-remote-offer');
|
||
|
|
break;
|
||
|
|
case 'answer':
|
||
|
|
this._updateSignalingState('stable');
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
throw new TypeError('unsupported type "' + description.type +
|
||
|
|
'"');
|
||
|
|
}
|
||
|
|
if (stream.getTracks().length) {
|
||
|
|
self.remoteStreams.push(stream);
|
||
|
|
window.setTimeout(function() {
|
||
|
|
var event = new Event('addstream');
|
||
|
|
event.stream = stream;
|
||
|
|
self.dispatchEvent(event);
|
||
|
|
if (self.onaddstream !== null) {
|
||
|
|
window.setTimeout(function() {
|
||
|
|
self.onaddstream(event);
|
||
|
|
}, 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
receiverList.forEach(function(item) {
|
||
|
|
var track = item[0];
|
||
|
|
var receiver = item[1];
|
||
|
|
var trackEvent = new Event('track');
|
||
|
|
trackEvent.track = track;
|
||
|
|
trackEvent.receiver = receiver;
|
||
|
|
trackEvent.streams = [stream];
|
||
|
|
self.dispatchEvent(event);
|
||
|
|
if (self.ontrack !== null) {
|
||
|
|
window.setTimeout(function() {
|
||
|
|
self.ontrack(trackEvent);
|
||
|
|
}, 0);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}, 0);
|
||
|
|
}
|
||
|
|
if (arguments.length > 1 && typeof arguments[1] === 'function') {
|
||
|
|
window.setTimeout(arguments[1], 0);
|
||
|
|
}
|
||
|
|
return Promise.resolve();
|
||
|
|
};
|
||
|
|
|
||
|
|
window.RTCPeerConnection.prototype.close = function() {
|
||
|
|
this.transceivers.forEach(function(transceiver) {
|
||
|
|
/* not yet
|
||
|
|
if (transceiver.iceGatherer) {
|
||
|
|
transceiver.iceGatherer.close();
|
||
|
|
}
|
||
|
|
*/
|
||
|
|
if (transceiver.iceTransport) {
|
||
|
|
transceiver.iceTransport.stop();
|
||
|
|
}
|
||
|
|
if (transceiver.dtlsTransport) {
|
||
|
|
transceiver.dtlsTransport.stop();
|
||
|
|
}
|
||
|
|
if (transceiver.rtpSender) {
|
||
|
|
transceiver.rtpSender.stop();
|
||
|
|
}
|
||
|
|
if (transceiver.rtpReceiver) {
|
||
|
|
transceiver.rtpReceiver.stop();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
// FIXME: clean up tracks, local streams, remote streams, etc
|
||
|
|
this._updateSignalingState('closed');
|
||
|
|
};
|
||
|
|
|
||
|
|
// Update the signaling state.
|
||
|
|
window.RTCPeerConnection.prototype._updateSignalingState =
|
||
|
|
function(newState) {
|
||
|
|
this.signalingState = newState;
|
||
|
|
var event = new Event('signalingstatechange');
|
||
|
|
this.dispatchEvent(event);
|
||
|
|
if (this.onsignalingstatechange !== null) {
|
||
|
|
this.onsignalingstatechange(event);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
// Determine whether to fire the negotiationneeded event.
|
||
|
|
window.RTCPeerConnection.prototype._maybeFireNegotiationNeeded =
|
||
|
|
function() {
|
||
|
|
// Fire away (for now).
|
||
|
|
var event = new Event('negotiationneeded');
|
||
|
|
this.dispatchEvent(event);
|
||
|
|
if (this.onnegotiationneeded !== null) {
|
||
|
|
this.onnegotiationneeded(event);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
// Update the connection state.
|
||
|
|
window.RTCPeerConnection.prototype._updateConnectionState = function() {
|
||
|
|
var self = this;
|
||
|
|
var newState;
|
||
|
|
var states = {
|
||
|
|
'new': 0,
|
||
|
|
closed: 0,
|
||
|
|
connecting: 0,
|
||
|
|
checking: 0,
|
||
|
|
connected: 0,
|
||
|
|
completed: 0,
|
||
|
|
failed: 0
|
||
|
|
};
|
||
|
|
this.transceivers.forEach(function(transceiver) {
|
||
|
|
states[transceiver.iceTransport.state]++;
|
||
|
|
states[transceiver.dtlsTransport.state]++;
|
||
|
|
});
|
||
|
|
// ICETransport.completed and connected are the same for this purpose.
|
||
|
|
states.connected += states.completed;
|
||
|
|
|
||
|
|
newState = 'new';
|
||
|
|
if (states.failed > 0) {
|
||
|
|
newState = 'failed';
|
||
|
|
} else if (states.connecting > 0 || states.checking > 0) {
|
||
|
|
newState = 'connecting';
|
||
|
|
} else if (states.disconnected > 0) {
|
||
|
|
newState = 'disconnected';
|
||
|
|
} else if (states.new > 0) {
|
||
|
|
newState = 'new';
|
||
|
|
} else if (states.connected > 0 || states.completed > 0) {
|
||
|
|
newState = 'connected';
|
||
|
|
}
|
||
|
|
|
||
|
|
if (newState !== self.iceConnectionState) {
|
||
|
|
self.iceConnectionState = newState;
|
||
|
|
var event = new Event('iceconnectionstatechange');
|
||
|
|
this.dispatchEvent(event);
|
||
|
|
if (this.oniceconnectionstatechange !== null) {
|
||
|
|
this.oniceconnectionstatechange(event);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
window.RTCPeerConnection.prototype.createOffer = function() {
|
||
|
|
var self = this;
|
||
|
|
if (this._pendingOffer) {
|
||
|
|
throw new Error('createOffer called while there is a pending offer.');
|
||
|
|
}
|
||
|
|
var offerOptions;
|
||
|
|
if (arguments.length === 1 && typeof arguments[0] !== 'function') {
|
||
|
|
offerOptions = arguments[0];
|
||
|
|
} else if (arguments.length === 3) {
|
||
|
|
offerOptions = arguments[2];
|
||
|
|
}
|
||
|
|
|
||
|
|
var tracks = [];
|
||
|
|
var numAudioTracks = 0;
|
||
|
|
var numVideoTracks = 0;
|
||
|
|
// Default to sendrecv.
|
||
|
|
if (this.localStreams.length) {
|
||
|
|
numAudioTracks = this.localStreams[0].getAudioTracks().length;
|
||
|
|
numVideoTracks = this.localStreams[0].getVideoTracks().length;
|
||
|
|
}
|
||
|
|
// Determine number of audio and video tracks we need to send/recv.
|
||
|
|
if (offerOptions) {
|
||
|
|
// Reject Chrome legacy constraints.
|
||
|
|
if (offerOptions.mandatory || offerOptions.optional) {
|
||
|
|
throw new TypeError(
|
||
|
|
'Legacy mandatory/optional constraints not supported.');
|
||
|
|
}
|
||
|
|
if (offerOptions.offerToReceiveAudio !== undefined) {
|
||
|
|
numAudioTracks = offerOptions.offerToReceiveAudio;
|
||
|
|
}
|
||
|
|
if (offerOptions.offerToReceiveVideo !== undefined) {
|
||
|
|
numVideoTracks = offerOptions.offerToReceiveVideo;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (this.localStreams.length) {
|
||
|
|
// Push local streams.
|
||
|
|
this.localStreams[0].getTracks().forEach(function(track) {
|
||
|
|
tracks.push({
|
||
|
|
kind: track.kind,
|
||
|
|
track: track,
|
||
|
|
wantReceive: track.kind === 'audio' ?
|
||
|
|
numAudioTracks > 0 : numVideoTracks > 0
|
||
|
|
});
|
||
|
|
if (track.kind === 'audio') {
|
||
|
|
numAudioTracks--;
|
||
|
|
} else if (track.kind === 'video') {
|
||
|
|
numVideoTracks--;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
// Create M-lines for recvonly streams.
|
||
|
|
while (numAudioTracks > 0 || numVideoTracks > 0) {
|
||
|
|
if (numAudioTracks > 0) {
|
||
|
|
tracks.push({
|
||
|
|
kind: 'audio',
|
||
|
|
wantReceive: true
|
||
|
|
});
|
||
|
|
numAudioTracks--;
|
||
|
|
}
|
||
|
|
if (numVideoTracks > 0) {
|
||
|
|
tracks.push({
|
||
|
|
kind: 'video',
|
||
|
|
wantReceive: true
|
||
|
|
});
|
||
|
|
numVideoTracks--;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var sdp = SDPUtils.writeSessionBoilerplate();
|
||
|
|
var transceivers = [];
|
||
|
|
tracks.forEach(function(mline, sdpMLineIndex) {
|
||
|
|
// For each track, create an ice gatherer, ice transport,
|
||
|
|
// dtls transport, potentially rtpsender and rtpreceiver.
|
||
|
|
var track = mline.track;
|
||
|
|
var kind = mline.kind;
|
||
|
|
var mid = SDPUtils.generateIdentifier();
|
||
|
|
|
||
|
|
var transports = self._createIceAndDtlsTransports(mid, sdpMLineIndex);
|
||
|
|
|
||
|
|
var localCapabilities = RTCRtpSender.getCapabilities(kind);
|
||
|
|
var rtpSender;
|
||
|
|
var rtpReceiver;
|
||
|
|
|
||
|
|
// generate an ssrc now, to be used later in rtpSender.send
|
||
|
|
var sendEncodingParameters = [{
|
||
|
|
ssrc: (2 * sdpMLineIndex + 1) * 1001
|
||
|
|
}];
|
||
|
|
if (track) {
|
||
|
|
rtpSender = new RTCRtpSender(track, transports.dtlsTransport);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (mline.wantReceive) {
|
||
|
|
rtpReceiver = new RTCRtpReceiver(transports.dtlsTransport, kind);
|
||
|
|
}
|
||
|
|
|
||
|
|
transceivers[sdpMLineIndex] = {
|
||
|
|
iceGatherer: transports.iceGatherer,
|
||
|
|
iceTransport: transports.iceTransport,
|
||
|
|
dtlsTransport: transports.dtlsTransport,
|
||
|
|
localCapabilities: localCapabilities,
|
||
|
|
remoteCapabilities: null,
|
||
|
|
rtpSender: rtpSender,
|
||
|
|
rtpReceiver: rtpReceiver,
|
||
|
|
kind: kind,
|
||
|
|
mid: mid,
|
||
|
|
sendEncodingParameters: sendEncodingParameters,
|
||
|
|
recvEncodingParameters: null
|
||
|
|
};
|
||
|
|
var transceiver = transceivers[sdpMLineIndex];
|
||
|
|
sdp += SDPUtils.writeMediaSection(transceiver,
|
||
|
|
transceiver.localCapabilities, 'offer', self.localStreams[0]);
|
||
|
|
});
|
||
|
|
|
||
|
|
this._pendingOffer = transceivers;
|
||
|
|
var desc = new RTCSessionDescription({
|
||
|
|
type: 'offer',
|
||
|
|
sdp: sdp
|
||
|
|
});
|
||
|
|
if (arguments.length && typeof arguments[0] === 'function') {
|
||
|
|
window.setTimeout(arguments[0], 0, desc);
|
||
|
|
}
|
||
|
|
return Promise.resolve(desc);
|
||
|
|
};
|
||
|
|
|
||
|
|
window.RTCPeerConnection.prototype.createAnswer = function() {
|
||
|
|
var self = this;
|
||
|
|
|
||
|
|
var sdp = SDPUtils.writeSessionBoilerplate();
|
||
|
|
this.transceivers.forEach(function(transceiver) {
|
||
|
|
// Calculate intersection of capabilities.
|
||
|
|
var commonCapabilities = self._getCommonCapabilities(
|
||
|
|
transceiver.localCapabilities,
|
||
|
|
transceiver.remoteCapabilities);
|
||
|
|
|
||
|
|
sdp += SDPUtils.writeMediaSection(transceiver, commonCapabilities,
|
||
|
|
'answer', self.localStreams[0]);
|
||
|
|
});
|
||
|
|
|
||
|
|
var desc = new RTCSessionDescription({
|
||
|
|
type: 'answer',
|
||
|
|
sdp: sdp
|
||
|
|
});
|
||
|
|
if (arguments.length && typeof arguments[0] === 'function') {
|
||
|
|
window.setTimeout(arguments[0], 0, desc);
|
||
|
|
}
|
||
|
|
return Promise.resolve(desc);
|
||
|
|
};
|
||
|
|
|
||
|
|
window.RTCPeerConnection.prototype.addIceCandidate = function(candidate) {
|
||
|
|
var mLineIndex = candidate.sdpMLineIndex;
|
||
|
|
if (candidate.sdpMid) {
|
||
|
|
for (var i = 0; i < this.transceivers.length; i++) {
|
||
|
|
if (this.transceivers[i].mid === candidate.sdpMid) {
|
||
|
|
mLineIndex = i;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
var transceiver = this.transceivers[mLineIndex];
|
||
|
|
if (transceiver) {
|
||
|
|
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) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
// Ignore RTCP candidates, we assume RTCP-MUX.
|
||
|
|
if (cand.component !== '1') {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
// A dirty hack to make samples work.
|
||
|
|
if (cand.type === 'endOfCandidates') {
|
||
|
|
cand = {};
|
||
|
|
}
|
||
|
|
transceiver.iceTransport.addRemoteCandidate(cand);
|
||
|
|
|
||
|
|
// update the remoteDescription.
|
||
|
|
var sections = SDPUtils.splitSections(this.remoteDescription.sdp);
|
||
|
|
sections[mLineIndex + 1] += (cand.type ? candidate.candidate.trim()
|
||
|
|
: 'a=end-of-candidates') + '\r\n';
|
||
|
|
this.remoteDescription.sdp = sections.join('');
|
||
|
|
}
|
||
|
|
if (arguments.length > 1 && typeof arguments[1] === 'function') {
|
||
|
|
window.setTimeout(arguments[1], 0);
|
||
|
|
}
|
||
|
|
return Promise.resolve();
|
||
|
|
};
|
||
|
|
|
||
|
|
window.RTCPeerConnection.prototype.getStats = function() {
|
||
|
|
var promises = [];
|
||
|
|
this.transceivers.forEach(function(transceiver) {
|
||
|
|
['rtpSender', 'rtpReceiver', 'iceGatherer', 'iceTransport',
|
||
|
|
'dtlsTransport'].forEach(function(method) {
|
||
|
|
if (transceiver[method]) {
|
||
|
|
promises.push(transceiver[method].getStats());
|
||
|
|
}
|
||
|
|
});
|
||
|
|
});
|
||
|
|
var cb = arguments.length > 1 && typeof arguments[1] === 'function' &&
|
||
|
|
arguments[1];
|
||
|
|
return new Promise(function(resolve) {
|
||
|
|
var results = {};
|
||
|
|
Promise.all(promises).then(function(res) {
|
||
|
|
res.forEach(function(result) {
|
||
|
|
Object.keys(result).forEach(function(id) {
|
||
|
|
results[id] = result[id];
|
||
|
|
});
|
||
|
|
});
|
||
|
|
if (cb) {
|
||
|
|
window.setTimeout(cb, 0, results);
|
||
|
|
}
|
||
|
|
resolve(results);
|
||
|
|
});
|
||
|
|
});
|
||
|
|
};
|
||
|
|
},
|
||
|
|
|
||
|
|
// Attach a media stream to an element.
|
||
|
|
attachMediaStream: function(element, stream) {
|
||
|
|
logging('DEPRECATED, attachMediaStream will soon be removed.');
|
||
|
|
element.srcObject = stream;
|
||
|
|
},
|
||
|
|
|
||
|
|
reattachMediaStream: function(to, from) {
|
||
|
|
logging('DEPRECATED, reattachMediaStream will soon be removed.');
|
||
|
|
to.srcObject = from.srcObject;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
// Expose public methods.
|
||
|
|
module.exports = {
|
||
|
|
shimPeerConnection: edgeShim.shimPeerConnection,
|
||
|
|
attachMediaStream: edgeShim.attachMediaStream,
|
||
|
|
reattachMediaStream: edgeShim.reattachMediaStream
|
||
|
|
};
|
||
|
|
|
||
|
|
},{"../utils":9,"./edge_sdp":4}],6:[function(require,module,exports){
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
||
|
|
*
|
||
|
|
* Use of this source code is governed by a BSD-style license
|
||
|
|
* that can be found in the LICENSE file in the root of the source
|
||
|
|
* tree.
|
||
|
|
*/
|
||
|
|
/* eslint-env node */
|
||
|
|
'use strict';
|
||
|
|
|
||
|
|
var logging = require('../utils').log;
|
||
|
|
var browserDetails = require('../utils').browserDetails;
|
||
|
|
|
||
|
|
var firefoxShim = {
|
||
|
|
shimOnTrack: function() {
|
||
|
|
if (typeof window === 'object' && window.RTCPeerConnection && !('ontrack' in
|
||
|
|
window.RTCPeerConnection.prototype)) {
|
||
|
|
Object.defineProperty(window.RTCPeerConnection.prototype, 'ontrack', {
|
||
|
|
get: function() {
|
||
|
|
return this._ontrack;
|
||
|
|
},
|
||
|
|
set: function(f) {
|
||
|
|
if (this._ontrack) {
|
||
|
|
this.removeEventListener('track', this._ontrack);
|
||
|
|
this.removeEventListener('addstream', this._ontrackpoly);
|
||
|
|
}
|
||
|
|
this.addEventListener('track', this._ontrack = f);
|
||
|
|
this.addEventListener('addstream', this._ontrackpoly = function(e) {
|
||
|
|
e.stream.getTracks().forEach(function(track) {
|
||
|
|
var event = new Event('track');
|
||
|
|
event.track = track;
|
||
|
|
event.receiver = {track: track};
|
||
|
|
event.streams = [e.stream];
|
||
|
|
this.dispatchEvent(event);
|
||
|
|
}.bind(this));
|
||
|
|
}.bind(this));
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
shimSourceObject: function() {
|
||
|
|
// Firefox has supported mozSrcObject since FF22, unprefixed in 42.
|
||
|
|
if (typeof window === 'object') {
|
||
|
|
if (window.HTMLMediaElement &&
|
||
|
|
!('srcObject' in window.HTMLMediaElement.prototype)) {
|
||
|
|
// Shim the srcObject property, once, when HTMLMediaElement is found.
|
||
|
|
Object.defineProperty(window.HTMLMediaElement.prototype, 'srcObject', {
|
||
|
|
get: function() {
|
||
|
|
return this.mozSrcObject;
|
||
|
|
},
|
||
|
|
set: function(stream) {
|
||
|
|
this.mozSrcObject = stream;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
shimPeerConnection: function() {
|
||
|
|
// The RTCPeerConnection object.
|
||
|
|
if (!window.RTCPeerConnection) {
|
||
|
|
window.RTCPeerConnection = function(pcConfig, pcConstraints) {
|
||
|
|
if (browserDetails.version < 38) {
|
||
|
|
// .urls is not supported in FF < 38.
|
||
|
|
// create RTCIceServers with a single url.
|
||
|
|
if (pcConfig && pcConfig.iceServers) {
|
||
|
|
var newIceServers = [];
|
||
|
|
for (var i = 0; i < pcConfig.iceServers.length; i++) {
|
||
|
|
var server = pcConfig.iceServers[i];
|
||
|
|
if (server.hasOwnProperty('urls')) {
|
||
|
|
for (var j = 0; j < server.urls.length; j++) {
|
||
|
|
var newServer = {
|
||
|
|
url: server.urls[j]
|
||
|
|
};
|
||
|
|
if (server.urls[j].indexOf('turn') === 0) {
|
||
|
|
newServer.username = server.username;
|
||
|
|
newServer.credential = server.credential;
|
||
|
|
}
|
||
|
|
newIceServers.push(newServer);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
newIceServers.push(pcConfig.iceServers[i]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
pcConfig.iceServers = newIceServers;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return new mozRTCPeerConnection(pcConfig, pcConstraints);
|
||
|
|
};
|
||
|
|
window.RTCPeerConnection.prototype = mozRTCPeerConnection.prototype;
|
||
|
|
|
||
|
|
// wrap static methods. Currently just generateCertificate.
|
||
|
|
if (mozRTCPeerConnection.generateCertificate) {
|
||
|
|
Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
|
||
|
|
get: function() {
|
||
|
|
return mozRTCPeerConnection.generateCertificate;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
window.RTCSessionDescription = mozRTCSessionDescription;
|
||
|
|
window.RTCIceCandidate = mozRTCIceCandidate;
|
||
|
|
}
|
||
|
|
|
||
|
|
// shim away need for obsolete RTCIceCandidate/RTCSessionDescription.
|
||
|
|
['setLocalDescription', 'setRemoteDescription', 'addIceCandidate']
|
||
|
|
.forEach(function(method) {
|
||
|
|
var nativeMethod = RTCPeerConnection.prototype[method];
|
||
|
|
RTCPeerConnection.prototype[method] = function() {
|
||
|
|
arguments[0] = new ((method === 'addIceCandidate')?
|
||
|
|
RTCIceCandidate : RTCSessionDescription)(arguments[0]);
|
||
|
|
return nativeMethod.apply(this, arguments);
|
||
|
|
};
|
||
|
|
});
|
||
|
|
},
|
||
|
|
|
||
|
|
shimGetUserMedia: function() {
|
||
|
|
// getUserMedia constraints shim.
|
||
|
|
var getUserMedia_ = function(constraints, onSuccess, onError) {
|
||
|
|
var constraintsToFF37_ = function(c) {
|
||
|
|
if (typeof c !== 'object' || c.require) {
|
||
|
|
return c;
|
||
|
|
}
|
||
|
|
var require = [];
|
||
|
|
Object.keys(c).forEach(function(key) {
|
||
|
|
if (key === 'require' || key === 'advanced' ||
|
||
|
|
key === 'mediaSource') {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
var r = c[key] = (typeof c[key] === 'object') ?
|
||
|
|
c[key] : {ideal: c[key]};
|
||
|
|
if (r.min !== undefined ||
|
||
|
|
r.max !== undefined || r.exact !== undefined) {
|
||
|
|
require.push(key);
|
||
|
|
}
|
||
|
|
if (r.exact !== undefined) {
|
||
|
|
if (typeof r.exact === 'number') {
|
||
|
|
r. min = r.max = r.exact;
|
||
|
|
} else {
|
||
|
|
c[key] = r.exact;
|
||
|
|
}
|
||
|
|
delete r.exact;
|
||
|
|
}
|
||
|
|
if (r.ideal !== undefined) {
|
||
|
|
c.advanced = c.advanced || [];
|
||
|
|
var oc = {};
|
||
|
|
if (typeof r.ideal === 'number') {
|
||
|
|
oc[key] = {min: r.ideal, max: r.ideal};
|
||
|
|
} else {
|
||
|
|
oc[key] = r.ideal;
|
||
|
|
}
|
||
|
|
c.advanced.push(oc);
|
||
|
|
delete r.ideal;
|
||
|
|
if (!Object.keys(r).length) {
|
||
|
|
delete c[key];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
if (require.length) {
|
||
|
|
c.require = require;
|
||
|
|
}
|
||
|
|
return c;
|
||
|
|
};
|
||
|
|
constraints = JSON.parse(JSON.stringify(constraints));
|
||
|
|
if (browserDetails.version < 38) {
|
||
|
|
logging('spec: ' + JSON.stringify(constraints));
|
||
|
|
if (constraints.audio) {
|
||
|
|
constraints.audio = constraintsToFF37_(constraints.audio);
|
||
|
|
}
|
||
|
|
if (constraints.video) {
|
||
|
|
constraints.video = constraintsToFF37_(constraints.video);
|
||
|
|
}
|
||
|
|
logging('ff37: ' + JSON.stringify(constraints));
|
||
|
|
}
|
||
|
|
return navigator.mozGetUserMedia(constraints, onSuccess, onError);
|
||
|
|
};
|
||
|
|
|
||
|
|
navigator.getUserMedia = getUserMedia_;
|
||
|
|
|
||
|
|
// Returns the result of getUserMedia as a Promise.
|
||
|
|
var getUserMediaPromise_ = function(constraints) {
|
||
|
|
return new Promise(function(resolve, reject) {
|
||
|
|
navigator.getUserMedia(constraints, resolve, reject);
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
// Shim for mediaDevices on older versions.
|
||
|
|
if (!navigator.mediaDevices) {
|
||
|
|
navigator.mediaDevices = {getUserMedia: getUserMediaPromise_,
|
||
|
|
addEventListener: function() { },
|
||
|
|
removeEventListener: function() { }
|
||
|
|
};
|
||
|
|
}
|
||
|
|
navigator.mediaDevices.enumerateDevices =
|
||
|
|
navigator.mediaDevices.enumerateDevices || function() {
|
||
|
|
return new Promise(function(resolve) {
|
||
|
|
var infos = [
|
||
|
|
{kind: 'audioinput', deviceId: 'default', label: '', groupId: ''},
|
||
|
|
{kind: 'videoinput', deviceId: 'default', label: '', groupId: ''}
|
||
|
|
];
|
||
|
|
resolve(infos);
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
if (browserDetails.version < 41) {
|
||
|
|
// Work around http://bugzil.la/1169665
|
||
|
|
var orgEnumerateDevices =
|
||
|
|
navigator.mediaDevices.enumerateDevices.bind(navigator.mediaDevices);
|
||
|
|
navigator.mediaDevices.enumerateDevices = function() {
|
||
|
|
return orgEnumerateDevices().then(undefined, function(e) {
|
||
|
|
if (e.name === 'NotFoundError') {
|
||
|
|
return [];
|
||
|
|
}
|
||
|
|
throw e;
|
||
|
|
});
|
||
|
|
};
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
// Attach a media stream to an element.
|
||
|
|
attachMediaStream: function(element, stream) {
|
||
|
|
logging('DEPRECATED, attachMediaStream will soon be removed.');
|
||
|
|
element.srcObject = stream;
|
||
|
|
},
|
||
|
|
|
||
|
|
reattachMediaStream: function(to, from) {
|
||
|
|
logging('DEPRECATED, reattachMediaStream will soon be removed.');
|
||
|
|
to.srcObject = from.srcObject;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
// Expose public methods.
|
||
|
|
module.exports = {
|
||
|
|
shimOnTrack: firefoxShim.shimOnTrack,
|
||
|
|
shimSourceObject: firefoxShim.shimSourceObject,
|
||
|
|
shimPeerConnection: firefoxShim.shimPeerConnection,
|
||
|
|
shimGetUserMedia: require('./getusermedia'),
|
||
|
|
attachMediaStream: firefoxShim.attachMediaStream,
|
||
|
|
reattachMediaStream: firefoxShim.reattachMediaStream
|
||
|
|
};
|
||
|
|
|
||
|
|
},{"../utils":9,"./getusermedia":7}],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';
|
||
|
|
|
||
|
|
var logging = require('../utils').log;
|
||
|
|
var browserDetails = require('../utils').browserDetails;
|
||
|
|
|
||
|
|
// Expose public methods.
|
||
|
|
module.exports = function() {
|
||
|
|
// getUserMedia constraints shim.
|
||
|
|
var getUserMedia_ = function(constraints, onSuccess, onError) {
|
||
|
|
var constraintsToFF37_ = function(c) {
|
||
|
|
if (typeof c !== 'object' || c.require) {
|
||
|
|
return c;
|
||
|
|
}
|
||
|
|
var require = [];
|
||
|
|
Object.keys(c).forEach(function(key) {
|
||
|
|
if (key === 'require' || key === 'advanced' || key === 'mediaSource') {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
var r = c[key] = (typeof c[key] === 'object') ?
|
||
|
|
c[key] : {ideal: c[key]};
|
||
|
|
if (r.min !== undefined ||
|
||
|
|
r.max !== undefined || r.exact !== undefined) {
|
||
|
|
require.push(key);
|
||
|
|
}
|
||
|
|
if (r.exact !== undefined) {
|
||
|
|
if (typeof r.exact === 'number') {
|
||
|
|
r. min = r.max = r.exact;
|
||
|
|
} else {
|
||
|
|
c[key] = r.exact;
|
||
|
|
}
|
||
|
|
delete r.exact;
|
||
|
|
}
|
||
|
|
if (r.ideal !== undefined) {
|
||
|
|
c.advanced = c.advanced || [];
|
||
|
|
var oc = {};
|
||
|
|
if (typeof r.ideal === 'number') {
|
||
|
|
oc[key] = {min: r.ideal, max: r.ideal};
|
||
|
|
} else {
|
||
|
|
oc[key] = r.ideal;
|
||
|
|
}
|
||
|
|
c.advanced.push(oc);
|
||
|
|
delete r.ideal;
|
||
|
|
if (!Object.keys(r).length) {
|
||
|
|
delete c[key];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
if (require.length) {
|
||
|
|
c.require = require;
|
||
|
|
}
|
||
|
|
return c;
|
||
|
|
};
|
||
|
|
constraints = JSON.parse(JSON.stringify(constraints));
|
||
|
|
if (browserDetails.version < 38) {
|
||
|
|
logging('spec: ' + JSON.stringify(constraints));
|
||
|
|
if (constraints.audio) {
|
||
|
|
constraints.audio = constraintsToFF37_(constraints.audio);
|
||
|
|
}
|
||
|
|
if (constraints.video) {
|
||
|
|
constraints.video = constraintsToFF37_(constraints.video);
|
||
|
|
}
|
||
|
|
logging('ff37: ' + JSON.stringify(constraints));
|
||
|
|
}
|
||
|
|
return navigator.mozGetUserMedia(constraints, onSuccess, onError);
|
||
|
|
};
|
||
|
|
|
||
|
|
navigator.getUserMedia = getUserMedia_;
|
||
|
|
|
||
|
|
// Returns the result of getUserMedia as a Promise.
|
||
|
|
var getUserMediaPromise_ = function(constraints) {
|
||
|
|
return new Promise(function(resolve, reject) {
|
||
|
|
navigator.getUserMedia(constraints, resolve, reject);
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
// Shim for mediaDevices on older versions.
|
||
|
|
if (!navigator.mediaDevices) {
|
||
|
|
navigator.mediaDevices = {getUserMedia: getUserMediaPromise_,
|
||
|
|
addEventListener: function() { },
|
||
|
|
removeEventListener: function() { }
|
||
|
|
};
|
||
|
|
}
|
||
|
|
navigator.mediaDevices.enumerateDevices =
|
||
|
|
navigator.mediaDevices.enumerateDevices || function() {
|
||
|
|
return new Promise(function(resolve) {
|
||
|
|
var infos = [
|
||
|
|
{kind: 'audioinput', deviceId: 'default', label: '', groupId: ''},
|
||
|
|
{kind: 'videoinput', deviceId: 'default', label: '', groupId: ''}
|
||
|
|
];
|
||
|
|
resolve(infos);
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
if (browserDetails.version < 41) {
|
||
|
|
// Work around http://bugzil.la/1169665
|
||
|
|
var orgEnumerateDevices =
|
||
|
|
navigator.mediaDevices.enumerateDevices.bind(navigator.mediaDevices);
|
||
|
|
navigator.mediaDevices.enumerateDevices = function() {
|
||
|
|
return orgEnumerateDevices().then(undefined, function(e) {
|
||
|
|
if (e.name === 'NotFoundError') {
|
||
|
|
return [];
|
||
|
|
}
|
||
|
|
throw e;
|
||
|
|
});
|
||
|
|
};
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
},{"../utils":9}],8:[function(require,module,exports){
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
||
|
|
*
|
||
|
|
* Use of this source code is governed by a BSD-style license
|
||
|
|
* that can be found in the LICENSE file in the root of the source
|
||
|
|
* tree.
|
||
|
|
*/
|
||
|
|
'use strict';
|
||
|
|
var safariShim = {
|
||
|
|
// TODO: DrAlex, should be here, double check against LayoutTests
|
||
|
|
// shimOnTrack: function() { },
|
||
|
|
|
||
|
|
// TODO: DrAlex
|
||
|
|
// attachMediaStream: function(element, stream) { },
|
||
|
|
// reattachMediaStream: function(to, from) { },
|
||
|
|
|
||
|
|
// TODO: once the back-end for the mac port is done, add.
|
||
|
|
// TODO: check for webkitGTK+
|
||
|
|
// shimPeerConnection: function() { },
|
||
|
|
|
||
|
|
shimGetUserMedia: function() {
|
||
|
|
navigator.getUserMedia = navigator.webkitGetUserMedia;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
// Expose public methods.
|
||
|
|
module.exports = {
|
||
|
|
shimGetUserMedia: safariShim.shimGetUserMedia
|
||
|
|
// TODO
|
||
|
|
// shimOnTrack: safariShim.shimOnTrack,
|
||
|
|
// shimPeerConnection: safariShim.shimPeerConnection,
|
||
|
|
// attachMediaStream: safariShim.attachMediaStream,
|
||
|
|
// reattachMediaStream: safariShim.reattachMediaStream
|
||
|
|
};
|
||
|
|
|
||
|
|
},{}],9:[function(require,module,exports){
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
||
|
|
*
|
||
|
|
* Use of this source code is governed by a BSD-style license
|
||
|
|
* that can be found in the LICENSE file in the root of the source
|
||
|
|
* tree.
|
||
|
|
*/
|
||
|
|
/* eslint-env node */
|
||
|
|
'use strict';
|
||
|
|
|
||
|
|
var logDisabled_ = false;
|
||
|
|
|
||
|
|
// Utility methods.
|
||
|
|
var utils = {
|
||
|
|
disableLog: function(bool) {
|
||
|
|
if (typeof bool !== 'boolean') {
|
||
|
|
return new Error('Argument type: ' + typeof bool +
|
||
|
|
'. Please use a boolean.');
|
||
|
|
}
|
||
|
|
logDisabled_ = bool;
|
||
|
|
return (bool) ? 'adapter.js logging disabled' :
|
||
|
|
'adapter.js logging enabled';
|
||
|
|
},
|
||
|
|
|
||
|
|
log: function() {
|
||
|
|
if (typeof window === 'object') {
|
||
|
|
if (logDisabled_) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (typeof console !== 'undefined' && typeof console.log === 'function') {
|
||
|
|
console.log.apply(console, arguments);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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.
|
||
|
|
*/
|
||
|
|
extractVersion: function(uastring, expr, pos) {
|
||
|
|
var match = uastring.match(expr);
|
||
|
|
return match && match.length >= pos && parseInt(match[pos], 10);
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Browser detector.
|
||
|
|
*
|
||
|
|
* @return {object} result containing browser, version and minVersion
|
||
|
|
* properties.
|
||
|
|
*/
|
||
|
|
detectBrowser: function() {
|
||
|
|
// Returned result object.
|
||
|
|
var result = {};
|
||
|
|
result.browser = null;
|
||
|
|
result.version = null;
|
||
|
|
result.minVersion = null;
|
||
|
|
|
||
|
|
// Fail early if it's not a browser
|
||
|
|
if (typeof window === 'undefined' || !window.navigator) {
|
||
|
|
result.browser = 'Not a browser.';
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Firefox.
|
||
|
|
if (navigator.mozGetUserMedia) {
|
||
|
|
result.browser = 'firefox';
|
||
|
|
result.version = this.extractVersion(navigator.userAgent,
|
||
|
|
/Firefox\/([0-9]+)\./, 1);
|
||
|
|
result.minVersion = 31;
|
||
|
|
|
||
|
|
// all webkit-based browsers
|
||
|
|
} else if (navigator.webkitGetUserMedia) {
|
||
|
|
// Chrome, Chromium, Webview, Opera, all use the chrome shim for now
|
||
|
|
if (window.webkitRTCPeerConnection) {
|
||
|
|
result.browser = 'chrome';
|
||
|
|
result.version = this.extractVersion(navigator.userAgent,
|
||
|
|
/Chrom(e|ium)\/([0-9]+)\./, 2);
|
||
|
|
result.minVersion = 38;
|
||
|
|
|
||
|
|
// Safari or unknown webkit-based
|
||
|
|
// for the time being Safari has support for MediaStreams but not webRTC
|
||
|
|
} else {
|
||
|
|
// Safari UA substrings of interest for reference:
|
||
|
|
// - webkit version: AppleWebKit/602.1.25 (also used in Op,Cr)
|
||
|
|
// - safari UI version: Version/9.0.3 (unique to Safari)
|
||
|
|
// - safari UI webkit version: Safari/601.4.4 (also used in Op,Cr)
|
||
|
|
//
|
||
|
|
// if the webkit version and safari UI webkit versions are equals,
|
||
|
|
// ... this is a stable version.
|
||
|
|
//
|
||
|
|
// only the internal webkit version is important today to know if
|
||
|
|
// media streams are supported
|
||
|
|
//
|
||
|
|
if (navigator.userAgent.match(/Version\/(\d+).(\d+)/)) {
|
||
|
|
result.browser = 'safari';
|
||
|
|
result.version = this.extractVersion(navigator.userAgent,
|
||
|
|
/AppleWebKit\/([0-9]+)\./, 1);
|
||
|
|
result.minVersion = 602;
|
||
|
|
|
||
|
|
// unknown webkit-based browser
|
||
|
|
} else {
|
||
|
|
result.browser = 'Unsupported webkit-based browser ' +
|
||
|
|
'with GUM support but no WebRTC support.';
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Edge.
|
||
|
|
} else if (navigator.mediaDevices &&
|
||
|
|
navigator.userAgent.match(/Edge\/(\d+).(\d+)$/)) {
|
||
|
|
result.browser = 'edge';
|
||
|
|
result.version = this.extractVersion(navigator.userAgent,
|
||
|
|
/Edge\/(\d+).(\d+)$/, 2);
|
||
|
|
result.minVersion = 10547;
|
||
|
|
|
||
|
|
// Default fallthrough: not supported.
|
||
|
|
} else {
|
||
|
|
result.browser = 'Not a supported browser.';
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Warn if version is less than minVersion.
|
||
|
|
if (result.version < result.minVersion) {
|
||
|
|
utils.log('Browser: ' + result.browser + ' Version: ' + result.version +
|
||
|
|
' < minimum supported version: ' + result.minVersion +
|
||
|
|
'\n some things might not work!');
|
||
|
|
}
|
||
|
|
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
// Export.
|
||
|
|
module.exports = {
|
||
|
|
log: utils.log,
|
||
|
|
disableLog: utils.disableLog,
|
||
|
|
browserDetails: utils.detectBrowser(),
|
||
|
|
extractVersion: utils.extractVersion
|
||
|
|
};
|
||
|
|
|
||
|
|
},{}]},{},[1])(1)
|
||
|
|
});
|