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Original File Path: /Users/waldgeist/Documents/Development/htdocs/aiddogs/webapp/packages/guzz-live-session-standard/vendor/adapter.js
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/*
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree.
*/
/* More information about these options at jshint.com/docs/options */
/* jshint browser: true, camelcase: true, curly: true, devel: true,
eqeqeq: true, forin: false, globalstrict: true, node: true,
quotmark: single, undef: true, unused: strict */
/* global mozRTCIceCandidate, mozRTCPeerConnection, Promise,
mozRTCSessionDescription, webkitRTCPeerConnection, MediaStreamTrack,
MediaStream, RTCIceGatherer, RTCIceTransport, RTCDtlsTransport,
RTCRtpSender, RTCRtpReceiver*/
/* exported trace,requestUserMedia */
'use strict';
app.livesession.adapterJS = _.bind(function() {
// app.log('adding adapter.js');
var getUserMedia = null;
var attachMediaStream = null;
var reattachMediaStream = null;
var webrtcDetectedBrowser = null;
var webrtcDetectedVersion = null;
var webrtcMinimumVersion = null;
var webrtcUtils = {
log: function() {
// suppress console.log output when being included as a module.
if (typeof module !== 'undefined' ||
typeof require === 'function' && typeof define === 'function') {
return;
}
console.log.apply(console, arguments);
},
extractVersion: function(uastring, expr, pos) {
var match = uastring.match(expr);
return match && match.length >= pos && parseInt(match[pos], 10);
}
};
function trace(text) {
// This function is used for logging.
if (text[text.length - 1] === '\n') {
text = text.substring(0, text.length - 1);
}
if (window.performance) {
var now = (window.performance.now() / 1000).toFixed(3);
webrtcUtils.log(now + ': ' + text);
} else {
webrtcUtils.log(text);
}
}
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() {
// If prefixed srcObject property exists, return it.
// Otherwise use the shimmed property, _srcObject
return 'mozSrcObject' in this ? this.mozSrcObject : this._srcObject;
},
set: function(stream) {
if ('mozSrcObject' in this) {
this.mozSrcObject = stream;
} else {
// Use _srcObject as a private property for this shim
this._srcObject = stream;
// TODO: revokeObjectUrl(this.src) when !stream to release resources?
this.src = URL.createObjectURL(stream);
}
}
});
}
// Proxy existing globals
getUserMedia = window.navigator && window.navigator.getUserMedia;
}
// Attach a media stream to an element.
attachMediaStream = function(element, stream) {
element.srcObject = stream;
};
reattachMediaStream = function(to, from) {
to.srcObject = from.srcObject;
};
if (typeof window === 'undefined' || !window.navigator) {
webrtcUtils.log('This does not appear to be a browser');
webrtcDetectedBrowser = 'not a browser';
} else if (navigator.mozGetUserMedia) {
webrtcUtils.log('This appears to be Firefox');
webrtcDetectedBrowser = 'firefox';
// the detected firefox version.
webrtcDetectedVersion = webrtcUtils.extractVersion(navigator.userAgent,
/Firefox\/([0-9]+)\./, 1);
// the minimum firefox version still supported by adapter.
webrtcMinimumVersion = 31;
// Shim for RTCPeerConnection on older versions.
if (!window.RTCPeerConnection) {
window.RTCPeerConnection = function(pcConfig, pcConstraints) {
if (webrtcDetectedVersion < 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); // jscs:ignore requireCapitalizedConstructors
};
// wrap static methods. Currently just generateCertificate.
if (mozRTCPeerConnection.generateCertificate) {
Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
get: function() {
if (arguments.length) {
return mozRTCPeerConnection.generateCertificate.apply(null,
arguments);
} else {
return mozRTCPeerConnection.generateCertificate;
}
}
});
}
window.RTCSessionDescription = mozRTCSessionDescription;
window.RTCIceCandidate = mozRTCIceCandidate;
}
// getUserMedia constraints shim.
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;
};
if (webrtcDetectedVersion < 38) {
webrtcUtils.log('spec: ' + JSON.stringify(constraints));
if (constraints.audio) {
constraints.audio = constraintsToFF37(constraints.audio);
}
if (constraints.video) {
constraints.video = constraintsToFF37(constraints.video);
}
webrtcUtils.log('ff37: ' + JSON.stringify(constraints));
}
return navigator.mozGetUserMedia(constraints, onSuccess, onError);
};
navigator.getUserMedia = getUserMedia;
// Shim for mediaDevices on older versions.
if (!navigator.mediaDevices) {
navigator.mediaDevices = {
getUserMedia: requestUserMedia,
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 (webrtcDetectedVersion < 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;
});
};
}
} else if (navigator.webkitGetUserMedia && window.webkitRTCPeerConnection) {
webrtcUtils.log('This appears to be Chrome');
webrtcDetectedBrowser = 'chrome';
// the detected chrome version.
webrtcDetectedVersion = webrtcUtils.extractVersion(navigator.userAgent,
/Chrom(e|ium)\/([0-9]+)\./, 2);
// the minimum chrome version still supported by adapter.
webrtcMinimumVersion = 38;
// The RTCPeerConnection object.
window.RTCPeerConnection = function(pcConfig, pcConstraints) {
// Translate iceTransportPolicy to iceTransports,
// see https://code.google.com/p/webrtc/issues/detail?id=4869
if (pcConfig && pcConfig.iceTransportPolicy) {
pcConfig.iceTransports = pcConfig.iceTransportPolicy;
}
var pc = new webkitRTCPeerConnection(pcConfig, pcConstraints); // jscs:ignore requireCapitalizedConstructors
var origGetStats = pc.getStats.bind(pc);
pc.getStats = function(selector, successCallback, errorCallback) { // jshint ignore: line
var self = this;
var args = arguments;
// If selector is a function then we are in the old style stats so just
// pass back the original getStats format to avoid breaking old users.
if (arguments.length > 0 && typeof selector === 'function') {
return origGetStats(selector, successCallback);
}
var fixChromeStats = function(response) {
var standardReport = {};
var reports = response.result();
reports.forEach(function(report) {
var standardStats = {
id: report.id,
timestamp: report.timestamp,
type: report.type
};
report.names().forEach(function(name) {
standardStats[name] = report.stat(name);
});
standardReport[standardStats.id] = standardStats;
});
return standardReport;
};
if (arguments.length >= 2) {
var successCallbackWrapper = function(response) {
args[1](fixChromeStats(response));
};
return origGetStats.apply(this, [successCallbackWrapper, arguments[0]]);
}
// promise-support
return new Promise(function(resolve, reject) {
if (args.length === 1 && selector === null) {
origGetStats.apply(self, [
function(response) {
resolve.apply(null, [fixChromeStats(response)]);
},
reject
]);
} else {
origGetStats.apply(self, [resolve, reject]);
}
});
};
return pc;
};
// wrap static methods. Currently just generateCertificate.
if (webkitRTCPeerConnection.generateCertificate) {
Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
get: function() {
if (arguments.length) {
return webkitRTCPeerConnection.generateCertificate.apply(null,
arguments);
} else {
return webkitRTCPeerConnection.generateCertificate;
}
}
});
}
// add promise support
['createOffer', 'createAnswer'].forEach(function(method) {
var nativeMethod = webkitRTCPeerConnection.prototype[method];
webkitRTCPeerConnection.prototype[method] = function() {
var self = this;
if (arguments.length < 1 || (arguments.length === 1 &&
typeof(arguments[0]) === 'object')) {
var opts = arguments.length === 1 ? arguments[0] : undefined;
return new Promise(function(resolve, reject) {
nativeMethod.apply(self, [resolve, reject, opts]);
});
} else {
return nativeMethod.apply(this, arguments);
}
};
});
['setLocalDescription', 'setRemoteDescription',
'addIceCandidate'
].forEach(function(method) {
var nativeMethod = webkitRTCPeerConnection.prototype[method];
webkitRTCPeerConnection.prototype[method] = function() {
var args = arguments;
var self = this;
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]);
}
}
]);
});
};
});
// getUserMedia constraints shim.
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;
};
getUserMedia = function(constraints, onSuccess, onError) {
if (constraints.audio) {
constraints.audio = constraintsToChrome(constraints.audio);
}
if (constraints.video) {
constraints.video = constraintsToChrome(constraints.video);
}
webrtcUtils.log('chrome: ' + JSON.stringify(constraints));
return navigator.webkitGetUserMedia(constraints, onSuccess, onError);
};
navigator.getUserMedia = getUserMedia;
if (!navigator.mediaDevices) {
navigator.mediaDevices = {
getUserMedia: requestUserMedia,
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 requestUserMedia(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) {
webrtcUtils.log('spec: ' + JSON.stringify(c)); // whitespace for alignment
c.audio = constraintsToChrome(c.audio);
c.video = constraintsToChrome(c.video);
webrtcUtils.log('chrome: ' + JSON.stringify(c));
return origGetUserMedia(c);
};
}
// Dummy devicechange event methods.
// TODO(KaptenJansson) remove once implemented in Chrome stable.
if (typeof navigator.mediaDevices.addEventListener === 'undefined') {
navigator.mediaDevices.addEventListener = function() {
webrtcUtils.log('Dummy mediaDevices.addEventListener called.');
};
}
if (typeof navigator.mediaDevices.removeEventListener === 'undefined') {
navigator.mediaDevices.removeEventListener = function() {
webrtcUtils.log('Dummy mediaDevices.removeEventListener called.');
};
}
// Attach a media stream to an element.
attachMediaStream = function(element, stream) {
if (webrtcDetectedVersion >= 43) {
element.srcObject = stream;
} else if (typeof element.src !== 'undefined') {
element.src = URL.createObjectURL(stream);
} else {
webrtcUtils.log('Error attaching stream to element.');
}
};
reattachMediaStream = function(to, from) {
if (webrtcDetectedVersion >= 43) {
to.srcObject = from.srcObject;
} else {
to.src = from.src;
}
};
} else if (navigator.mediaDevices && navigator.userAgent.match(
/Edge\/(\d+).(\d+)$/)) {
webrtcUtils.log('This appears to be Edge');
webrtcDetectedBrowser = 'edge';
webrtcDetectedVersion = webrtcUtils.extractVersion(navigator.userAgent,
/Edge\/(\d+).(\d+)$/, 2);
// The minimum version still supported by adapter.
// This is the build number for Edge.
webrtcMinimumVersion = 10547;
if (window.RTCIceGatherer) {
// Generate an alphanumeric identifier for cname or mids.
// TODO: use UUIDs instead? https://gist.github.com/jed/982883
var generateIdentifier = function() {
return Math.random().toString(36).substr(2, 10);
};
// The RTCP CNAME used by all peerconnections from the same JS.
var localCName = generateIdentifier();
// SDP helpers - to be moved into separate module.
var SDPUtils = {};
// 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('\r\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
parsed.numChannels = parts.length === 3 ? parseInt(parts[2], 10) : 1; // was: channels
return parsed;
};
// Generate an a=rtpmap line from RTCRtpCodecCapability or RTCRtpCodecParameters.
SDPUtils.writeRtpMap = function(codec) {
var pt = codec.payloadType;
if (codec.preferredPayloadType !== undefined) {
pt = codec.preferredPayloadType;
}
return 'a=rtpmap:' + pt + ' ' + codec.name + '/' + codec.clockRate +
(codec.numChannels !== 1 ? '/' + codec.numChannels : '') + '\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.writeFtmp = function(codec) {
var line = '';
var pt = codec.payloadType;
if (codec.preferredPayloadType !== undefined) {
pt = codec.preferredPayloadType;
}
if (codec.parameters && 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: line.substr(7, sp - 7),
};
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);
lines = lines.concat(SDPUtils.splitLines(sessionpart)); // Search in session part, too.
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);
lines = lines.concat(SDPUtils.splitLines(sessionpart)); // Search in session part, too.
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);
}
}
// FIXME: parse headerExtensions, fecMechanisms and 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.writeFtmp(codec);
sdp += SDPUtils.writeRtcpFb(codec);
});
// FIXME: add headerExtensions, fecMechanismş and rtcp.
sdp += 'a=rtcp-mux\r\n';
return sdp;
};
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.sendSsrc + ' ' + msid;
}
// FIXME: this should be written by writeRtpDescription.
sdp += 'a=ssrc:' + transceiver.sendSsrc + ' cname:' +
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);
}
}
if (sessionpart) {
return SDPUtils.getDirection(sessionpart);
}
return 'sendrecv';
};
// 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;
this.onicecandidate = null;
this.onaddstream = 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.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');
}
}
if (config && config.iceServers) {
// Edge does not like
// 1) stun:
// 2) turn: that does not have all of turn:host:port?transport=udp
// 3) an array of urls
config.iceServers.forEach(function(server) {
if (server.urls) {
var url;
if (typeof(server.urls) === 'string') {
url = server.urls;
} else {
url = server.urls[0];
}
if (url.indexOf('transport=udp') !== -1) {
self.iceServers.push({
username: server.username,
credential: server.credential,
urls: url
});
}
}
});
}
// 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;
// FIXME: need to apply ice candidates in a way which is async but in-order
this._localIceCandidatesBuffer.forEach(function(event) {
if (self.onicecandidate !== null) {
self.onicecandidate(event);
}
});
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 = {};
event.candidate = {
sdpMid: mid,
sdpMLineIndex: sdpMLineIndex
};
var cand = evt.candidate;
// Edge emits an empty object for RTCIceCandidateComplete‥
if (!cand || Object.keys(cand).length === 0) {
// 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';
});
// FIXME: update .localDescription with candidate and (potentially) end-of-candidates.
// To make this harder, the gatherer might emit candidates before localdescription
// is set. To make things worse, gather.getLocalCandidates still errors in
// Edge 10547 when no candidates have been gathered yet.
if (self.onicecandidate !== null) {
// Emit candidate if localDescription is set.
// Also emits null candidate when all gatherers are complete.
if (self.localDescription && self.localDescription.type === '') {
self._localIceCandidatesBuffer.push(event);
if (complete) {
self._localIceCandidatesBuffer.push({});
}
} else {
self.onicecandidate(event);
if (complete) {
self.onicecandidate({});
}
}
}
};
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 = [{
ssrc: transceiver.sendSsrc
}];
params.rtcp = {
cname: localCName,
ssrc: transceiver.recvSsrc
};
transceiver.rtpSender.send(params);
}
if (recv && transceiver.rtpReceiver) {
params.encodings = [{
ssrc: transceiver.recvSsrc
}];
params.rtcp = {
cname: transceiver.cname,
ssrc: transceiver.sendSsrc
};
transceiver.rtpReceiver.receive(params);
}
};
window.RTCPeerConnection.prototype.setLocalDescription =
function(description) {
var self = this;
if (description.type === 'offer') {
if (!this._pendingOffer) {} else {
this.transceivers = this._pendingOffer;
delete this._pendingOffer;
}
} else if (description.type === 'answer') {
var sections = SDPUtils.splitSections(self.remoteDescription.sdp);
var 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 = description;
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();
self._emitBufferedCandidates();
}, 0);
}
var p = Promise.resolve();
p.then(function() {
if (!hasCallback) {
window.setTimeout(self._emitBufferedCandidates.bind(self), 0);
}
});
return p;
};
window.RTCPeerConnection.prototype.setRemoteDescription =
function(description) {
var self = this;
var stream = new MediaStream();
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 sendSsrc;
var recvSsrc;
var localCapabilities;
// 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);
}
var mid = SDPUtils.matchPrefix(mediaSection, 'a=mid:')[0].substr(6);
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) {
recvSsrc = parseInt(remoteSsrc.ssrc, 10);
cname = remoteSsrc.value;
}
if (description.type === 'offer') {
var transports = self._createIceAndDtlsTransports(mid, sdpMLineIndex);
localCapabilities = RTCRtpReceiver.getCapabilities(kind);
sendSsrc = (2 * sdpMLineIndex + 2) * 1001;
rtpReceiver = new RTCRtpReceiver(transports.dtlsTransport, kind);
// FIXME: not correct when there are multiple streams but that is
// not currently supported in this shim.
stream.addTrack(rtpReceiver.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,
sendSsrc: sendSsrc,
recvSsrc: recvSsrc
};
// 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;
sendSsrc = transceiver.sendSsrc;
//recvSsrc = transceiver.recvSsrc;
localCapabilities = transceiver.localCapabilities;
self.transceivers[sdpMLineIndex].recvSsrc = recvSsrc;
self.transceivers[sdpMLineIndex].remoteCapabilities =
remoteCapabilities;
self.transceivers[sdpMLineIndex].cname = cname;
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')) {
stream.addTrack(rtpReceiver.track);
} else {
// FIXME: actually the receiver should be created later.
delete transceiver.rtpReceiver;
}
}
});
this.remoteDescription = description;
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 + '"');
}
window.setTimeout(function() {
if (self.onaddstream !== null && stream.getTracks().length) {
self.remoteStreams.push(stream);
window.setTimeout(function() {
self.onaddstream({
stream: stream
});
}, 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;
if (this.onsignalingstatechange !== null) {
this.onsignalingstatechange();
}
};
// Determine whether to fire the negotiationneeded event.
window.RTCPeerConnection.prototype._maybeFireNegotiationNeeded =
function() {
// Fire away (for now).
if (this.onnegotiationneeded !== null) {
this.onnegotiationneeded();
}
};
// 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.connecting > 0 || states.completed > 0) {
newState = 'connected';
}
if (newState !== self.iceConnectionState) {
self.iceConnectionState = newState;
if (this.oniceconnectionstatechange !== null) {
this.oniceconnectionstatechange();
}
}
};
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 = 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 sendSsrc = (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,
sendSsrc: sendSsrc,
recvSsrc: 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 answerOptions;
if (arguments.length === 1 && typeof arguments[0] !== 'function') {
answerOptions = arguments[0];
} else if (arguments.length === 3) {
answerOptions = arguments[2];
}
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);
}
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);
});
});
};
}
} else {
webrtcUtils.log('Browser does not appear to be WebRTC-capable');
}
// Polyfill ontrack on browsers that don't yet have it
if (typeof window === 'object' && !('ontrack' in window.RTCPeerConnection)) {
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));
}
});
}
// Returns the result of getUserMedia as a Promise.
function requestUserMedia(constraints) {
return new Promise(function(resolve, reject) {
getUserMedia(constraints, resolve, reject);
});
}
var webrtcTesting = {};
try {
Object.defineProperty(webrtcTesting, 'version', {
set: function(version) {
webrtcDetectedVersion = version;
}
});
} catch (e) {}
if (typeof module !== 'undefined') {
var RTCPeerConnection;
var RTCIceCandidate;
var RTCSessionDescription;
if (typeof window !== 'undefined') {
RTCPeerConnection = window.RTCPeerConnection;
RTCIceCandidate = window.RTCIceCandidate;
RTCSessionDescription = window.RTCSessionDescription;
}
module.exports = {
RTCPeerConnection: RTCPeerConnection,
RTCIceCandidate: RTCIceCandidate,
RTCSessionDescription: RTCSessionDescription,
getUserMedia: getUserMedia,
attachMediaStream: attachMediaStream,
reattachMediaStream: reattachMediaStream,
webrtcDetectedBrowser: webrtcDetectedBrowser,
webrtcDetectedVersion: webrtcDetectedVersion,
webrtcMinimumVersion: webrtcMinimumVersion,
webrtcTesting: webrtcTesting,
webrtcUtils: webrtcUtils
//requestUserMedia: not exposed on purpose.
//trace: not exposed on purpose.
};
} else if ((typeof require === 'function') && (typeof define === 'function')) {
// Expose objects and functions when RequireJS is doing the loading.
define([], function() {
return {
RTCPeerConnection: window.RTCPeerConnection,
RTCIceCandidate: window.RTCIceCandidate,
RTCSessionDescription: window.RTCSessionDescription,
getUserMedia: getUserMedia,
attachMediaStream: attachMediaStream,
reattachMediaStream: reattachMediaStream,
webrtcDetectedBrowser: webrtcDetectedBrowser,
webrtcDetectedVersion: webrtcDetectedVersion,
webrtcMinimumVersion: webrtcMinimumVersion,
webrtcTesting: webrtcTesting,
webrtcUtils: webrtcUtils
//requestUserMedia: not exposed on purpose.
//trace: not exposed on purpose.
};
});
}
}, this);The raw package settings options
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"configPath": "",
"disabled": false,
"default_beautifier": "Uncrustify",
"beautify_on_save": false
},
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"preserve_newlines": true,
"disabled": false,
"default_beautifier": "Pretty Diff",
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"wrap_line_length": 0,
"end_with_newline": false,
"end_with_comma": false,
"end_of_line": "System Default",
"disabled": false,
"default_beautifier": "coffee-fmt",
"beautify_on_save": false
},
"cpp": {
"configPath": "",
"disabled": false,
"default_beautifier": "Uncrustify",
"beautify_on_save": false
},
"cs": {
"beautify_on_save": true,
"configPath": "/Users/waldgeist/Documents/Development/htdocs/marble/unity/.uncrustify.cfg",
"disabled": false,
"default_beautifier": "Uncrustify"
},
"css": {
"beautify_on_save": true,
"newline_between_rules": true,
"preserve_newlines": true,
"indent_size": 2,
"indent_char": " ",
"selector_separator_newline": false,
"wrap_line_length": 0,
"end_with_newline": false,
"indent_comments": true,
"force_indentation": false,
"convert_quotes": "none",
"align_assignments": false,
"no_lead_zero": false,
"configPath": "",
"predefinedConfig": "csscomb",
"disabled": false,
"default_beautifier": "JS Beautify"
},
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"disabled": false,
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"label",
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"ruby",
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"span",
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"textarea",
"time",
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"video",
"wbr",
"text",
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"small",
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"pre",
"h1",
"h2",
"h3",
"h4",
"h5",
"h6"
],
"extra_liners": [
"head",
"body",
"/html"
],
"disabled": false,
"default_beautifier": "JS Beautify",
"beautify_on_save": false
},
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"disabled": false,
"default_beautifier": "Pretty Diff",
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},
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"disabled": false,
"default_beautifier": "Fortran Beautifier",
"beautify_on_save": false
},
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"analytics": false,
"loggerLevel": "warn",
"beautifyEntireFileOnSave": true,
"muteUnsupportedLanguageErrors": false,
"muteAllErrors": false,
"showLoadingView": true
},
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"disabled": false,
"default_beautifier": "Gherkin formatter",
"beautify_on_save": false
},
"handlebars": {
"beautify_on_save": true,
"indent_inner_html": false,
"indent_size": 2,
"indent_char": " ",
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],
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"body",
"/html"
],
"disabled": false,
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},
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"end_with_newline": true,
"indent_inner_html": false,
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"indent_scripts": "normal",
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"i",
"iframe",
"img",
"input",
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"keygen",
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"map",
"mark",
"math",
"meter",
"noscript",
"object",
"output",
"progress",
"q",
"ruby",
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"samp",
"select",
"small",
"span",
"strong",
"sub",
"sup",
"svg",
"template",
"textarea",
"time",
"u",
"var",
"video",
"wbr",
"text",
"acronym",
"address",
"big",
"dt",
"ins",
"small",
"strike",
"tt",
"pre",
"h1",
"h2",
"h3",
"h4",
"h5",
"h6"
],
"extra_liners": [
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"body",
"/html"
],
"disabled": false,
"default_beautifier": "JS Beautify"
},
"jade": {
"indent_size": 2,
"indent_char": " ",
"disabled": false,
"default_beautifier": "Pug Beautify",
"beautify_on_save": false
},
"java": {
"configPath": "",
"disabled": false,
"default_beautifier": "Uncrustify",
"beautify_on_save": false
},
"js": {
"beautify_on_save": true,
"end_with_newline": true,
"indent_size": 2,
"indent_char": " ",
"indent_level": 0,
"indent_with_tabs": false,
"preserve_newlines": true,
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"end_with_comma": false,
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"disabled": false,
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},
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},
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},
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"indent_size": 4,
"ignore": [
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"formater": "autopep8",
"style_config": "pep8",
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"multi_line_output": "Hanging Grid Grouped",
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"default_beautifier": "autopep8",
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"preserve_newlines": true,
"disabled": false,
"default_beautifier": "Pretty Diff",
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"ruby": {
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"default_beautifier": "rustfmt",
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"spacebars": {
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"indent_size": 2,
"indent_char": " ",
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"preserve_newlines": true,
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"default_beautifier": "Pretty Diff"
},
"sql": {
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"keywords": "upper",
"identifiers": "unchanged",
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"beautify_on_save": false
},
"svg": {
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"disabled": false,
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/*
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree.
*/
/* More information about these options at jshint.com/docs/options */
/* jshint browser: true, camelcase: true, curly: true, devel: true,
eqeqeq: true, forin: false, globalstrict: true, node: true,
quotmark: single, undef: true, unused: strict */
/* global mozRTCIceCandidate, mozRTCPeerConnection, Promise,
mozRTCSessionDescription, webkitRTCPeerConnection, MediaStreamTrack,
MediaStream, RTCIceGatherer, RTCIceTransport, RTCDtlsTransport,
RTCRtpSender, RTCRtpReceiver*/
/* exported trace,requestUserMedia */
'use strict';
app.livesession.adapterJS = _.bind(function() {
// app.log('adding adapter.js');
var getUserMedia = null;
var attachMediaStream = null;
var reattachMediaStream = null;
var webrtcDetectedBrowser = null;
var webrtcDetectedVersion = null;
var webrtcMinimumVersion = null;
var webrtcUtils = {
log: function() {
// suppress console.log output when being included as a module.
if (typeof module !== 'undefined' || typeof require === 'function' && typeof define === 'function') {
return;
}
console.log.apply(console, arguments);
},
extractVersion: function(uastring, expr, pos) {
var match = uastring.match(expr);
return match && match.length >= pos && parseInt(match[pos], 10);
}
};
function trace(text) {
// This function is used for logging.
if (text[text.length - 1] === '\n') {
text = text.substring(0, text.length - 1);
}
if (window.performance) {
var now = (window.performance.now() / 1000).toFixed(3);
webrtcUtils.log(now + ': ' + text);
} else {
webrtcUtils.log(text);
}
}
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() {
// If prefixed srcObject property exists, return it.
// Otherwise use the shimmed property, _srcObject
return 'mozSrcObject' in this ? this.mozSrcObject : this._srcObject;
},
set: function(stream) {
if ('mozSrcObject' in this) {
this.mozSrcObject = stream;
} else {
// Use _srcObject as a private property for this shim
this._srcObject = stream;
// TODO: revokeObjectUrl(this.src) when !stream to release resources?
this.src = URL.createObjectURL(stream);
}
}
});
}
// Proxy existing globals
getUserMedia = window.navigator && window.navigator.getUserMedia;
}
// Attach a media stream to an element.
attachMediaStream = function(element, stream) {
element.srcObject = stream;
};
reattachMediaStream = function(to, from) {
to.srcObject = from.srcObject;
};
if (typeof window === 'undefined' || !window.navigator) {
webrtcUtils.log('This does not appear to be a browser');
webrtcDetectedBrowser = 'not a browser';
} else if (navigator.mozGetUserMedia) {
webrtcUtils.log('This appears to be Firefox');
webrtcDetectedBrowser = 'firefox';
// the detected firefox version.
webrtcDetectedVersion = webrtcUtils.extractVersion(navigator.userAgent, /Firefox\/([0-9]+)\./, 1);
// the minimum firefox version still supported by adapter.
webrtcMinimumVersion = 31;
// Shim for RTCPeerConnection on older versions.
if (!window.RTCPeerConnection) {
window.RTCPeerConnection = function(pcConfig, pcConstraints) {
if (webrtcDetectedVersion < 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); // jscs:ignore requireCapitalizedConstructors
};
// wrap static methods. Currently just generateCertificate.
if (mozRTCPeerConnection.generateCertificate) {
Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
get: function() {
if (arguments.length) {
return mozRTCPeerConnection.generateCertificate.apply(null, arguments);
} else {
return mozRTCPeerConnection.generateCertificate;
}
}
});
}
window.RTCSessionDescription = mozRTCSessionDescription;
window.RTCIceCandidate = mozRTCIceCandidate;
}
// getUserMedia constraints shim.
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;
};
if (webrtcDetectedVersion < 38) {
webrtcUtils.log('spec: ' + JSON.stringify(constraints));
if (constraints.audio) {
constraints.audio = constraintsToFF37(constraints.audio);
}
if (constraints.video) {
constraints.video = constraintsToFF37(constraints.video);
}
webrtcUtils.log('ff37: ' + JSON.stringify(constraints));
}
return navigator.mozGetUserMedia(constraints, onSuccess, onError);
};
navigator.getUserMedia = getUserMedia;
// Shim for mediaDevices on older versions.
if (!navigator.mediaDevices) {
navigator.mediaDevices = {
getUserMedia: requestUserMedia,
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 (webrtcDetectedVersion < 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;
});
};
}
} else if (navigator.webkitGetUserMedia && window.webkitRTCPeerConnection) {
webrtcUtils.log('This appears to be Chrome');
webrtcDetectedBrowser = 'chrome';
// the detected chrome version.
webrtcDetectedVersion = webrtcUtils.extractVersion(navigator.userAgent, /Chrom(e|ium)\/([0-9]+)\./, 2);
// the minimum chrome version still supported by adapter.
webrtcMinimumVersion = 38;
// The RTCPeerConnection object.
window.RTCPeerConnection = function(pcConfig, pcConstraints) {
// Translate iceTransportPolicy to iceTransports,
// see https://code.google.com/p/webrtc/issues/detail?id=4869
if (pcConfig && pcConfig.iceTransportPolicy) {
pcConfig.iceTransports = pcConfig.iceTransportPolicy;
}
var pc = new webkitRTCPeerConnection(pcConfig, pcConstraints); // jscs:ignore requireCapitalizedConstructors
var origGetStats = pc.getStats.bind(pc);
pc.getStats = function(selector, successCallback, errorCallback) { // jshint ignore: line
var self = this;
var args = arguments;
// If selector is a function then we are in the old style stats so just
// pass back the original getStats format to avoid breaking old users.
if (arguments.length > 0 && typeof selector === 'function') {
return origGetStats(selector, successCallback);
}
var fixChromeStats = function(response) {
var standardReport = {};
var reports = response.result();
reports.forEach(function(report) {
var standardStats = {
id: report.id,
timestamp: report.timestamp,
type: report.type
};
report.names().forEach(function(name) {
standardStats[name] = report.stat(name);
});
standardReport[standardStats.id] = standardStats;
});
return standardReport;
};
if (arguments.length >= 2) {
var successCallbackWrapper = function(response) {
args[1](fixChromeStats(response));
};
return origGetStats.apply(this, [successCallbackWrapper, arguments[0]]);
}
// promise-support
return new Promise(function(resolve, reject) {
if (args.length === 1 && selector === null) {
origGetStats.apply(self, [
function(response) {
resolve.apply(null, [fixChromeStats(response)]);
},
reject
]);
} else {
origGetStats.apply(self, [resolve, reject]);
}
});
};
return pc;
};
// wrap static methods. Currently just generateCertificate.
if (webkitRTCPeerConnection.generateCertificate) {
Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
get: function() {
if (arguments.length) {
return webkitRTCPeerConnection.generateCertificate.apply(null, arguments);
} else {
return webkitRTCPeerConnection.generateCertificate;
}
}
});
}
// add promise support['createOffer', 'createAnswer'].forEach(function(method) {
var nativeMethod = webkitRTCPeerConnection.prototype[method];
webkitRTCPeerConnection.prototype[method] = function() {
var self = this;
if (arguments.length < 1 || (arguments.length === 1 && typeof(arguments[0]) === 'object')) {
var opts = arguments.length === 1 ? arguments[0] : undefined;
return new Promise(function(resolve, reject) {
nativeMethod.apply(self, [resolve, reject, opts]);
});
} else {
return nativeMethod.apply(this, arguments);
}
};
});
['setLocalDescription', 'setRemoteDescription', 'addIceCandidate'].forEach(function(method) {
var nativeMethod = webkitRTCPeerConnection.prototype[method];
webkitRTCPeerConnection.prototype[method] = function() {
var args = arguments;
var self = this;
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]);
}
}
]);
});
};
});
// getUserMedia constraints shim.
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;
};
getUserMedia = function(constraints, onSuccess, onError) {
if (constraints.audio) {
constraints.audio = constraintsToChrome(constraints.audio);
}
if (constraints.video) {
constraints.video = constraintsToChrome(constraints.video);
}
webrtcUtils.log('chrome: ' + JSON.stringify(constraints));
return navigator.webkitGetUserMedia(constraints, onSuccess, onError);
};
navigator.getUserMedia = getUserMedia;
if (!navigator.mediaDevices) {
navigator.mediaDevices = {
getUserMedia: requestUserMedia,
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 requestUserMedia(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) {
webrtcUtils.log('spec: ' + JSON.stringify(c)); // whitespace for alignment
c.audio = constraintsToChrome(c.audio);
c.video = constraintsToChrome(c.video);
webrtcUtils.log('chrome: ' + JSON.stringify(c));
return origGetUserMedia(c);
};
}
// Dummy devicechange event methods.
// TODO(KaptenJansson) remove once implemented in Chrome stable.
if (typeof navigator.mediaDevices.addEventListener === 'undefined') {
navigator.mediaDevices.addEventListener = function() {
webrtcUtils.log('Dummy mediaDevices.addEventListener called.');
};
}
if (typeof navigator.mediaDevices.removeEventListener === 'undefined') {
navigator.mediaDevices.removeEventListener = function() {
webrtcUtils.log('Dummy mediaDevices.removeEventListener called.');
};
}
// Attach a media stream to an element.
attachMediaStream = function(element, stream) {
if (webrtcDetectedVersion >= 43) {
element.srcObject = stream;
} else if (typeof element.src !== 'undefined') {
element.src = URL.createObjectURL(stream);
} else {
webrtcUtils.log('Error attaching stream to element.');
}
};
reattachMediaStream = function(to, from) {
if (webrtcDetectedVersion >= 43) {
to.srcObject = from.srcObject;
} else {
to.src = from.src;
}
};
} else if (navigator.mediaDevices && navigator.userAgent.match(/Edge\/(\d+).(\d+)$/)) {
webrtcUtils.log('This appears to be Edge');
webrtcDetectedBrowser = 'edge';
webrtcDetectedVersion = webrtcUtils.extractVersion(navigator.userAgent, /Edge\/(\d+).(\d+)$/, 2);
// The minimum version still supported by adapter.
// This is the build number for Edge.
webrtcMinimumVersion = 10547;
if (window.RTCIceGatherer) {
// Generate an alphanumeric identifier for cname or mids.
// TODO: use UUIDs instead? https://gist.github.com/jed/982883
var generateIdentifier = function() {
return Math.random().toString(36).substr(2, 10);
};
// The RTCP CNAME used by all peerconnections from the same JS.
var localCName = generateIdentifier();
// SDP helpers - to be moved into separate module.
var SDPUtils = {};
// 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('\r\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
parsed.numChannels = parts.length === 3 ? parseInt(parts[2], 10) : 1; // was: channels
return parsed;
};
// Generate an a=rtpmap line from RTCRtpCodecCapability or RTCRtpCodecParameters.
SDPUtils.writeRtpMap = function(codec) {
var pt = codec.payloadType;
if (codec.preferredPayloadType !== undefined) {
pt = codec.preferredPayloadType;
}
return 'a=rtpmap:' + pt + ' ' + codec.name + '/' + codec.clockRate + (codec.numChannels !== 1 ? '/' + codec.numChannels : '') + '\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.writeFtmp = function(codec) {
var line = '';
var pt = codec.payloadType;
if (codec.preferredPayloadType !== undefined) {
pt = codec.preferredPayloadType;
}
if (codec.parameters && 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: line.substr(7, sp - 7)
};
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);
lines = lines.concat(SDPUtils.splitLines(sessionpart)); // Search in session part, too.
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);
lines = lines.concat(SDPUtils.splitLines(sessionpart)); // Search in session part, too.
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);
}
}
// FIXME: parse headerExtensions, fecMechanisms and 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.writeFtmp(codec);
sdp += SDPUtils.writeRtcpFb(codec);
});
// FIXME: add headerExtensions, fecMechanismş and rtcp.
sdp += 'a=rtcp-mux\r\n';
return sdp;
};
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.sendSsrc + ' ' + msid;
}
// FIXME: this should be written by writeRtpDescription.
sdp += 'a=ssrc:' + transceiver.sendSsrc + ' cname:' + 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);
}
}
if (sessionpart) {
return SDPUtils.getDirection(sessionpart);
}
return 'sendrecv';
};
// 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;
this.onicecandidate = null;
this.onaddstream = 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.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');
}
}
if (config && config.iceServers) {
// Edge does not like
// 1) stun:
// 2) turn: that does not have all of turn:host:port?transport=udp
// 3) an array of urls
config.iceServers.forEach(function(server) {
if (server.urls) {
var url;
if (typeof(server.urls) === 'string') {
url = server.urls;
} else {
url = server.urls[0];
}
if (url.indexOf('transport=udp') !== -1) {
self.iceServers.push({username: server.username, credential: server.credential, urls: url});
}
}
});
}
// 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;
// FIXME: need to apply ice candidates in a way which is async but in-order
this._localIceCandidatesBuffer.forEach(function(event) {
if (self.onicecandidate !== null) {
self.onicecandidate(event);
}
});
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 = {};
event.candidate = {
sdpMid: mid,
sdpMLineIndex: sdpMLineIndex
};
var cand = evt.candidate;
// Edge emits an empty object for RTCIceCandidateComplete‥
if (!cand || Object.keys(cand).length === 0) {
// 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';
});
// FIXME: update .localDescription with candidate and (potentially) end-of-candidates.
// To make this harder, the gatherer might emit candidates before localdescription
// is set. To make things worse, gather.getLocalCandidates still errors in
// Edge 10547 when no candidates have been gathered yet.
if (self.onicecandidate !== null) {
// Emit candidate if localDescription is set.
// Also emits null candidate when all gatherers are complete.
if (self.localDescription && self.localDescription.type === '') {
self._localIceCandidatesBuffer.push(event);
if (complete) {
self._localIceCandidatesBuffer.push({});
}
} else {
self.onicecandidate(event);
if (complete) {
self.onicecandidate({});
}
}
}
};
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 = [
{
ssrc: transceiver.sendSsrc
}
];
params.rtcp = {
cname: localCName,
ssrc: transceiver.recvSsrc
};
transceiver.rtpSender.send(params);
}
if (recv && transceiver.rtpReceiver) {
params.encodings = [
{
ssrc: transceiver.recvSsrc
}
];
params.rtcp = {
cname: transceiver.cname,
ssrc: transceiver.sendSsrc
};
transceiver.rtpReceiver.receive(params);
}
};
window.RTCPeerConnection.prototype.setLocalDescription = function(description) {
var self = this;
if (description.type === 'offer') {
if (!this._pendingOffer) {} else {
this.transceivers = this._pendingOffer;
delete this._pendingOffer;
}
} else if (description.type === 'answer') {
var sections = SDPUtils.splitSections(self.remoteDescription.sdp);
var 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 = description;
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();
self._emitBufferedCandidates();
}, 0);
}
var p = Promise.resolve();
p.then(function() {
if (!hasCallback) {
window.setTimeout(self._emitBufferedCandidates.bind(self), 0);
}
});
return p;
};
window.RTCPeerConnection.prototype.setRemoteDescription = function(description) {
var self = this;
var stream = new MediaStream();
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 sendSsrc;
var recvSsrc;
var localCapabilities;
// 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);
}
var mid = SDPUtils.matchPrefix(mediaSection, 'a=mid:')[0].substr(6);
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) {
recvSsrc = parseInt(remoteSsrc.ssrc, 10);
cname = remoteSsrc.value;
}
if (description.type === 'offer') {
var transports = self._createIceAndDtlsTransports(mid, sdpMLineIndex);
localCapabilities = RTCRtpReceiver.getCapabilities(kind);
sendSsrc = (2 * sdpMLineIndex + 2) * 1001;
rtpReceiver = new RTCRtpReceiver(transports.dtlsTransport, kind);
// FIXME: not correct when there are multiple streams but that is
// not currently supported in this shim.
stream.addTrack(rtpReceiver.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,
sendSsrc: sendSsrc,
recvSsrc: recvSsrc
};
// 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;
sendSsrc = transceiver.sendSsrc;
//recvSsrc = transceiver.recvSsrc;
localCapabilities = transceiver.localCapabilities;
self.transceivers[sdpMLineIndex].recvSsrc = recvSsrc;
self.transceivers[sdpMLineIndex].remoteCapabilities = remoteCapabilities;
self.transceivers[sdpMLineIndex].cname = cname;
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')) {
stream.addTrack(rtpReceiver.track);
} else {
// FIXME: actually the receiver should be created later.
delete transceiver.rtpReceiver;
}
}
});
this.remoteDescription = description;
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 + '"');
}
window.setTimeout(function() {
if (self.onaddstream !== null && stream.getTracks().length) {
self.remoteStreams.push(stream);
window.setTimeout(function() {
self.onaddstream({stream: stream});
}, 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;
if (this.onsignalingstatechange !== null) {
this.onsignalingstatechange();
}
};
// Determine whether to fire the negotiationneeded event.
window.RTCPeerConnection.prototype._maybeFireNegotiationNeeded = function() {
// Fire away (for now).
if (this.onnegotiationneeded !== null) {
this.onnegotiationneeded();
}
};
// 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.connecting > 0 || states.completed > 0) {
newState = 'connected';
}
if (newState !== self.iceConnectionState) {
self.iceConnectionState = newState;
if (this.oniceconnectionstatechange !== null) {
this.oniceconnectionstatechange();
}
}
};
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 = 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 sendSsrc = (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,
sendSsrc: sendSsrc,
recvSsrc: 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 answerOptions;
if (arguments.length === 1 && typeof arguments[0] !== 'function') {
answerOptions = arguments[0];
} else if (arguments.length === 3) {
answerOptions = arguments[2];
}
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);
}
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);
});
});
};
}
} else {
webrtcUtils.log('Browser does not appear to be WebRTC-capable');
}
// Polyfill ontrack on browsers that don't yet have it
if (typeof window === 'object' && !('ontrack' in window.RTCPeerConnection)) {
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));
}
});
}
// Returns the result of getUserMedia as a Promise.
function requestUserMedia(constraints) {
return new Promise(function(resolve, reject) {
getUserMedia(constraints, resolve, reject);
});
}
var webrtcTesting = {};
try {
Object.defineProperty(webrtcTesting, 'version', {
set: function(version) {
webrtcDetectedVersion = version;
}
});
} catch (e) {}
if (typeof module !== 'undefined') {
var RTCPeerConnection;
var RTCIceCandidate;
var RTCSessionDescription;
if (typeof window !== 'undefined') {
RTCPeerConnection = window.RTCPeerConnection;
RTCIceCandidate = window.RTCIceCandidate;
RTCSessionDescription = window.RTCSessionDescription;
}
module.exports = {
RTCPeerConnection: RTCPeerConnection,
RTCIceCandidate: RTCIceCandidate,
RTCSessionDescription: RTCSessionDescription,
getUserMedia: getUserMedia,
attachMediaStream: attachMediaStream,
reattachMediaStream: reattachMediaStream,
webrtcDetectedBrowser: webrtcDetectedBrowser,
webrtcDetectedVersion: webrtcDetectedVersion,
webrtcMinimumVersion: webrtcMinimumVersion,
webrtcTesting: webrtcTesting,
webrtcUtils: webrtcUtils
//requestUserMedia: not exposed on purpose.
//trace: not exposed on purpose.
};
} else if ((typeof require === 'function') && (typeof define === 'function')) {
// Expose objects and functions when RequireJS is doing the loading.
define([], function() {
return {
RTCPeerConnection: window.RTCPeerConnection,
RTCIceCandidate: window.RTCIceCandidate,
RTCSessionDescription: window.RTCSessionDescription,
getUserMedia: getUserMedia,
attachMediaStream: attachMediaStream,
reattachMediaStream: reattachMediaStream,
webrtcDetectedBrowser: webrtcDetectedBrowser,
webrtcDetectedVersion: webrtcDetectedVersion,
webrtcMinimumVersion: webrtcMinimumVersion,
webrtcTesting: webrtcTesting,
webrtcUtils: webrtcUtils
//requestUserMedia: not exposed on purpose.
//trace: not exposed on purpose.
};
});
}
}, this);Original vs. Beautified Diff:
Index: /Users/waldgeist/Documents/Development/htdocs/aiddogs/webapp/packages/guzz-live-session-standard/vendor/adapter.js
===================================================================
--- /Users/waldgeist/Documents/Development/htdocs/aiddogs/webapp/packages/guzz-live-session-standard/vendor/adapter.js original
+++ /Users/waldgeist/Documents/Development/htdocs/aiddogs/webapp/packages/guzz-live-session-standard/vendor/adapter.js beautified
@@ -30,10 +30,9 @@
var webrtcMinimumVersion = null;
var webrtcUtils = {
log: function() {
// suppress console.log output when being included as a module.
- if (typeof module !== 'undefined' ||
- typeof require === 'function' && typeof define === 'function') {
+ if (typeof module !== 'undefined' || typeof require === 'function' && typeof define === 'function') {
return;
}
console.log.apply(console, arguments);
},
@@ -56,10 +55,9 @@
}
}
if (typeof window === 'object') {
- if (window.HTMLMediaElement &&
- !('srcObject' in window.HTMLMediaElement.prototype)) {
+ 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() {
// If prefixed srcObject property exists, return it.
@@ -99,10 +97,9 @@
webrtcDetectedBrowser = 'firefox';
// the detected firefox version.
- webrtcDetectedVersion = webrtcUtils.extractVersion(navigator.userAgent,
- /Firefox\/([0-9]+)\./, 1);
+ webrtcDetectedVersion = webrtcUtils.extractVersion(navigator.userAgent, /Firefox\/([0-9]+)\./, 1);
// the minimum firefox version still supported by adapter.
webrtcMinimumVersion = 31;
@@ -141,10 +138,9 @@
if (mozRTCPeerConnection.generateCertificate) {
Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
get: function() {
if (arguments.length) {
- return mozRTCPeerConnection.generateCertificate.apply(null,
- arguments);
+ return mozRTCPeerConnection.generateCertificate.apply(null, arguments);
} else {
return mozRTCPeerConnection.generateCertificate;
}
}
@@ -165,14 +161,12 @@
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) {
+ 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') {
@@ -227,12 +221,12 @@
addEventListener: function() {},
removeEventListener: function() {}
};
}
- navigator.mediaDevices.enumerateDevices =
- navigator.mediaDevices.enumerateDevices || function() {
- return new Promise(function(resolve) {
- var infos = [{
+ navigator.mediaDevices.enumerateDevices = navigator.mediaDevices.enumerateDevices || function() {
+ return new Promise(function(resolve) {
+ var infos = [
+ {
kind: 'audioinput',
deviceId: 'default',
label: '',
groupId: ''
@@ -240,17 +234,17 @@
kind: 'videoinput',
deviceId: 'default',
label: '',
groupId: ''
- }];
- resolve(infos);
- });
- };
+ }
+ ];
+ resolve(infos);
+ });
+ };
if (webrtcDetectedVersion < 41) {
// Work around http://bugzil.la/1169665
- var orgEnumerateDevices =
- navigator.mediaDevices.enumerateDevices.bind(navigator.mediaDevices);
+ var orgEnumerateDevices = navigator.mediaDevices.enumerateDevices.bind(navigator.mediaDevices);
navigator.mediaDevices.enumerateDevices = function() {
return orgEnumerateDevices().then(undefined, function(e) {
if (e.name === 'NotFoundError') {
return [];
@@ -264,10 +258,9 @@
webrtcDetectedBrowser = 'chrome';
// the detected chrome version.
- webrtcDetectedVersion = webrtcUtils.extractVersion(navigator.userAgent,
- /Chrom(e|ium)\/([0-9]+)\./, 2);
+ webrtcDetectedVersion = webrtcUtils.extractVersion(navigator.userAgent, /Chrom(e|ium)\/([0-9]+)\./, 2);
// the minimum chrome version still supported by adapter.
webrtcMinimumVersion = 38;
@@ -339,24 +332,21 @@
if (webkitRTCPeerConnection.generateCertificate) {
Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
get: function() {
if (arguments.length) {
- return webkitRTCPeerConnection.generateCertificate.apply(null,
- arguments);
+ return webkitRTCPeerConnection.generateCertificate.apply(null, arguments);
} else {
return webkitRTCPeerConnection.generateCertificate;
}
}
});
}
- // add promise support
- ['createOffer', 'createAnswer'].forEach(function(method) {
+ // add promise support['createOffer', 'createAnswer'].forEach(function(method) {
var nativeMethod = webkitRTCPeerConnection.prototype[method];
webkitRTCPeerConnection.prototype[method] = function() {
var self = this;
- if (arguments.length < 1 || (arguments.length === 1 &&
- typeof(arguments[0]) === 'object')) {
+ if (arguments.length < 1 || (arguments.length === 1 && typeof(arguments[0]) === 'object')) {
var opts = arguments.length === 1 ? arguments[0] : undefined;
return new Promise(function(resolve, reject) {
nativeMethod.apply(self, [resolve, reject, opts]);
});
@@ -365,17 +355,16 @@
}
};
});
- ['setLocalDescription', 'setRemoteDescription',
- 'addIceCandidate'
- ].forEach(function(method) {
+ ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate'].forEach(function(method) {
var nativeMethod = webkitRTCPeerConnection.prototype[method];
webkitRTCPeerConnection.prototype[method] = function() {
var args = arguments;
var self = this;
return new Promise(function(resolve, reject) {
- nativeMethod.apply(self, [args[0],
+ nativeMethod.apply(self, [
+ args[0],
function() {
resolve();
if (args.length >= 2) {
args[1].apply(null, []);
@@ -491,10 +480,9 @@
} 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);
+ var origGetUserMedia = navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices);
navigator.mediaDevices.getUserMedia = function(c) {
webrtcUtils.log('spec: ' + JSON.stringify(c)); // whitespace for alignment
c.audio = constraintsToChrome(c.audio);
c.video = constraintsToChrome(c.video);
@@ -533,15 +521,13 @@
to.src = from.src;
}
};
- } else if (navigator.mediaDevices && navigator.userAgent.match(
- /Edge\/(\d+).(\d+)$/)) {
+ } else if (navigator.mediaDevices && navigator.userAgent.match(/Edge\/(\d+).(\d+)$/)) {
webrtcUtils.log('This appears to be Edge');
webrtcDetectedBrowser = 'edge';
- webrtcDetectedVersion = webrtcUtils.extractVersion(navigator.userAgent,
- /Edge\/(\d+).(\d+)$/, 2);
+ webrtcDetectedVersion = webrtcUtils.extractVersion(navigator.userAgent, /Edge\/(\d+).(\d+)$/, 2);
// The minimum version still supported by adapter.
// This is the build number for Edge.
webrtcMinimumVersion = 10547;
@@ -633,10 +619,9 @@
var type = candidate.type;
sdp.push('typ');
sdp.push(type);
- if (type !== 'host' && candidate.relatedAddress &&
- candidate.relatedPort) {
+ 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
@@ -669,10 +654,9 @@
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';
+ return 'a=rtpmap:' + pt + ' ' + codec.name + '/' + codec.clockRate + (codec.numChannels !== 1 ? '/' + codec.numChannels : '') + '\r\n';
};
// Parses an ftmp line, returns dictionary. Sample input:
// a=fmtp:96 vbr=on;cng=on
@@ -708,12 +692,9 @@
// 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(' ')
- };
+ return {type: parts.shift(), parameter: parts.join(' ')};
};
// Generate a=rtcp-fb lines from RTCRtpCodecCapability or RTCRtpCodecParameters.
SDPUtils.writeRtcpFb = function(codec) {
var lines = '';
@@ -723,10 +704,9 @@
}
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';
+ lines += 'a=rtcp-fb:' + pt + ' ' + fb.type + ' ' + fb.parameter + '\r\n';
});
}
return lines;
};
@@ -735,9 +715,9 @@
// a=ssrc:3735928559 cname:something
SDPUtils.parseSsrcMedia = function(line) {
var sp = line.indexOf(' ');
var parts = {
- ssrc: line.substr(7, sp - 7),
+ ssrc: line.substr(7, sp - 7)
};
var colon = line.indexOf(':', sp);
if (colon > -1) {
parts.attribute = line.substr(sp + 1, colon - sp - 1);
@@ -759,12 +739,14 @@
})[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]
- }]
+ fingerprints: [
+ {
+ algorithm: fpLine.split(' ')[0],
+ value: fpLine.split(' ')[1]
+ }
+ ]
};
return dtlsParameters;
};
@@ -794,10 +776,9 @@
};
// Serializes ICE parameters to SDP.
SDPUtils.writeIceParameters = function(params) {
- return 'a=ice-ufrag:' + params.usernameFragment + '\r\n' +
- 'a=ice-pwd:' + params.password + '\r\n';
+ 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) {
@@ -810,19 +791,15 @@
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];
+ var rtpmapline = SDPUtils.matchPrefix(mediaSection, 'a=rtpmap:' + pt + ' ')[0];
if (rtpmapline) {
var codec = SDPUtils.parseRtpMap(rtpmapline);
- var fmtps = SDPUtils.matchPrefix(
- mediaSection, 'a=fmtp:' + pt + ' ');
+ 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);
+ codec.rtcpFeedback = SDPUtils.matchPrefix(mediaSection, 'a=rtcp-fb:' + pt + ' ').map(SDPUtils.parseRtcpFb);
description.codecs.push(codec);
}
}
// FIXME: parse headerExtensions, fecMechanisms and rtcp.
@@ -859,25 +836,19 @@
};
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';
+ 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());
+ sdp += SDPUtils.writeIceParameters(transceiver.iceGatherer.getLocalParameters());
// Map DTLS parameters to SDP.
- sdp += SDPUtils.writeDtlsParameters(
- transceiver.dtlsTransport.getLocalParameters(),
- type === 'offer' ? 'actpass' : 'active');
+ sdp += SDPUtils.writeDtlsParameters(transceiver.dtlsTransport.getLocalParameters(), type === 'offer' ? 'actpass' : 'active');
sdp += 'a=mid:' + transceiver.mid + '\r\n';
if (transceiver.rtpSender && transceiver.rtpReceiver) {
@@ -891,16 +862,14 @@
}
// 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';
+ var msid = 'msid:' + stream.id + ' ' + transceiver.rtpSender.track.id + '\r\n';
sdp += 'a=' + msid;
sdp += 'a=ssrc:' + transceiver.sendSsrc + ' ' + msid;
}
// FIXME: this should be written by writeRtpDescription.
- sdp += 'a=ssrc:' + transceiver.sendSsrc + ' cname:' +
- localCName + '\r\n';
+ sdp += 'a=ssrc:' + transceiver.sendSsrc + ' cname:' + localCName + '\r\n';
return sdp;
};
// Gets the direction from the mediaSection or the sessionpart.
@@ -957,16 +926,10 @@
this.getRemoteStreams = function() {
return self.remoteStreams;
};
- this.localDescription = new RTCSessionDescription({
- type: '',
- sdp: ''
- });
- this.remoteDescription = new RTCSessionDescription({
- type: '',
- sdp: ''
- });
+ this.localDescription = new RTCSessionDescription({type: '', sdp: ''});
+ this.remoteDescription = new RTCSessionDescription({type: '', sdp: ''});
this.signalingState = 'stable';
this.iceConnectionState = 'new';
this.iceOptions = {
@@ -997,13 +960,9 @@
} else {
url = server.urls[0];
}
if (url.indexOf('transport=udp') !== -1) {
- self.iceServers.push({
- username: server.username,
- credential: server.credential,
- urls: url
- });
+ self.iceServers.push({username: server.username, credential: server.credential, urls: url});
}
}
});
}
@@ -1044,372 +1003,342 @@
}
};
// 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);
+ 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;
- }
+ // 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;
- }
+ 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;
- };
+ // 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 = {};
- event.candidate = {
- sdpMid: mid,
- sdpMLineIndex: sdpMLineIndex
- };
+ 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 = {};
+ event.candidate = {
+ sdpMid: mid,
+ sdpMLineIndex: sdpMLineIndex
+ };
- var cand = evt.candidate;
- // Edge emits an empty object for RTCIceCandidateComplete‥
- if (!cand || Object.keys(cand).length === 0) {
- // 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 cand = evt.candidate;
+ // Edge emits an empty object for RTCIceCandidateComplete‥
+ if (!cand || Object.keys(cand).length === 0) {
+ // polyfill since RTCIceGatherer.state is not implemented in Edge 10547 yet.
+ if (iceGatherer.state === undefined) {
+ iceGatherer.state = 'completed';
}
- var complete = self.transceivers.every(function(transceiver) {
- return transceiver.iceGatherer &&
- transceiver.iceGatherer.state === 'completed';
- });
- // FIXME: update .localDescription with candidate and (potentially) end-of-candidates.
- // To make this harder, the gatherer might emit candidates before localdescription
- // is set. To make things worse, gather.getLocalCandidates still errors in
- // Edge 10547 when no candidates have been gathered yet.
+ // 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);
+ }
- if (self.onicecandidate !== null) {
- // Emit candidate if localDescription is set.
- // Also emits null candidate when all gatherers are complete.
- if (self.localDescription && self.localDescription.type === '') {
- self._localIceCandidatesBuffer.push(event);
- if (complete) {
- self._localIceCandidatesBuffer.push({});
- }
- } else {
- self.onicecandidate(event);
- if (complete) {
- self.onicecandidate({});
- }
+ var complete = self.transceivers.every(function(transceiver) {
+ return transceiver.iceGatherer && transceiver.iceGatherer.state === 'completed';
+ });
+ // FIXME: update .localDescription with candidate and (potentially) end-of-candidates.
+ // To make this harder, the gatherer might emit candidates before localdescription
+ // is set. To make things worse, gather.getLocalCandidates still errors in
+ // Edge 10547 when no candidates have been gathered yet.
+
+ if (self.onicecandidate !== null) {
+ // Emit candidate if localDescription is set.
+ // Also emits null candidate when all gatherers are complete.
+ if (self.localDescription && self.localDescription.type === '') {
+ self._localIceCandidatesBuffer.push(event);
+ if (complete) {
+ self._localIceCandidatesBuffer.push({});
}
+ } else {
+ self.onicecandidate(event);
+ if (complete) {
+ self.onicecandidate({});
+ }
}
- };
- iceTransport.onicestatechange = function() {
- self._updateConnectionState();
- };
+ }
+ };
+ 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
- };
+ 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);
+ window.RTCPeerConnection.prototype._transceive = function(transceiver, send, recv) {
+ var params = this._getCommonCapabilities(transceiver.localCapabilities, transceiver.remoteCapabilities);
if (send && transceiver.rtpSender) {
- params.encodings = [{
- ssrc: transceiver.sendSsrc
- }];
+ params.encodings = [
+ {
+ ssrc: transceiver.sendSsrc
+ }
+ ];
params.rtcp = {
cname: localCName,
ssrc: transceiver.recvSsrc
};
transceiver.rtpSender.send(params);
}
if (recv && transceiver.rtpReceiver) {
- params.encodings = [{
- ssrc: transceiver.recvSsrc
- }];
+ params.encodings = [
+ {
+ ssrc: transceiver.recvSsrc
+ }
+ ];
params.rtcp = {
cname: transceiver.cname,
ssrc: transceiver.sendSsrc
};
transceiver.rtpReceiver.receive(params);
}
};
- window.RTCPeerConnection.prototype.setLocalDescription =
- function(description) {
- var self = this;
- if (description.type === 'offer') {
- if (!this._pendingOffer) {} else {
- this.transceivers = this._pendingOffer;
- delete this._pendingOffer;
- }
- } else if (description.type === 'answer') {
- var sections = SDPUtils.splitSections(self.remoteDescription.sdp);
- var 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';
+ window.RTCPeerConnection.prototype.setLocalDescription = function(description) {
+ var self = this;
+ if (description.type === 'offer') {
+ if (!this._pendingOffer) {} else {
+ this.transceivers = this._pendingOffer;
+ delete this._pendingOffer;
+ }
+ } else if (description.type === 'answer') {
+ var sections = SDPUtils.splitSections(self.remoteDescription.sdp);
+ var 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');
+ if (!rejected) {
+ var remoteIceParameters = SDPUtils.getIceParameters(mediaSection, sessionpart);
+ iceTransport.start(iceGatherer, remoteIceParameters, 'controlled');
- var remoteDtlsParameters = SDPUtils.getDtlsParameters(mediaSection,
- sessionpart);
- dtlsTransport.start(remoteDtlsParameters);
+ var remoteDtlsParameters = SDPUtils.getDtlsParameters(mediaSection, sessionpart);
+ dtlsTransport.start(remoteDtlsParameters);
- // Calculate intersection of capabilities.
- var params = self._getCommonCapabilities(localCapabilities,
- remoteCapabilities);
+ // 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);
- }
- });
- }
+ // Start the RTCRtpSender. The RTCRtpReceiver for this transceiver
+ // has already been started in setRemoteDescription.
+ self._transceive(transceiver, params.codecs.length > 0, false);
+ }
+ });
+ }
- this.localDescription = description;
- 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 + '"');
- }
+ this.localDescription = description;
+ 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();
- self._emitBufferedCandidates();
- }, 0);
+ // 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();
+ self._emitBufferedCandidates();
+ }, 0);
+ }
+ var p = Promise.resolve();
+ p.then(function() {
+ if (!hasCallback) {
+ window.setTimeout(self._emitBufferedCandidates.bind(self), 0);
}
- var p = Promise.resolve();
- p.then(function() {
- if (!hasCallback) {
- window.setTimeout(self._emitBufferedCandidates.bind(self), 0);
- }
- });
- return p;
- };
+ });
+ return p;
+ };
- window.RTCPeerConnection.prototype.setRemoteDescription =
- function(description) {
- var self = this;
- var stream = new MediaStream();
- 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);
+ window.RTCPeerConnection.prototype.setRemoteDescription = function(description) {
+ var self = this;
+ var stream = new MediaStream();
+ 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 sendSsrc;
- var recvSsrc;
- var localCapabilities;
+ var transceiver;
+ var iceGatherer;
+ var iceTransport;
+ var dtlsTransport;
+ var rtpSender;
+ var rtpReceiver;
+ var sendSsrc;
+ var recvSsrc;
+ var localCapabilities;
- // 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);
- }
- var mid = SDPUtils.matchPrefix(mediaSection, 'a=mid:')[0].substr(6);
+ // 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);
+ }
+ var mid = SDPUtils.matchPrefix(mediaSection, 'a=mid:')[0].substr(6);
- 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) {
- recvSsrc = parseInt(remoteSsrc.ssrc, 10);
- cname = remoteSsrc.value;
- }
+ 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) {
+ recvSsrc = parseInt(remoteSsrc.ssrc, 10);
+ cname = remoteSsrc.value;
+ }
- if (description.type === 'offer') {
- var transports = self._createIceAndDtlsTransports(mid, sdpMLineIndex);
+ if (description.type === 'offer') {
+ var transports = self._createIceAndDtlsTransports(mid, sdpMLineIndex);
- localCapabilities = RTCRtpReceiver.getCapabilities(kind);
- sendSsrc = (2 * sdpMLineIndex + 2) * 1001;
+ localCapabilities = RTCRtpReceiver.getCapabilities(kind);
+ sendSsrc = (2 * sdpMLineIndex + 2) * 1001;
- rtpReceiver = new RTCRtpReceiver(transports.dtlsTransport, kind);
+ rtpReceiver = new RTCRtpReceiver(transports.dtlsTransport, kind);
- // FIXME: not correct when there are multiple streams but that is
- // not currently supported in this shim.
- stream.addTrack(rtpReceiver.track);
+ // FIXME: not correct when there are multiple streams but that is
+ // not currently supported in this shim.
+ stream.addTrack(rtpReceiver.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);
- }
+ // 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,
- sendSsrc: sendSsrc,
- recvSsrc: recvSsrc
- };
- // 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;
- sendSsrc = transceiver.sendSsrc;
- //recvSsrc = transceiver.recvSsrc;
- localCapabilities = transceiver.localCapabilities;
+ 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,
+ sendSsrc: sendSsrc,
+ recvSsrc: recvSsrc
+ };
+ // 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;
+ sendSsrc = transceiver.sendSsrc;
+ //recvSsrc = transceiver.recvSsrc;
+ localCapabilities = transceiver.localCapabilities;
- self.transceivers[sdpMLineIndex].recvSsrc = recvSsrc;
- self.transceivers[sdpMLineIndex].remoteCapabilities =
- remoteCapabilities;
- self.transceivers[sdpMLineIndex].cname = cname;
+ self.transceivers[sdpMLineIndex].recvSsrc = recvSsrc;
+ self.transceivers[sdpMLineIndex].remoteCapabilities = remoteCapabilities;
+ self.transceivers[sdpMLineIndex].cname = cname;
- iceTransport.start(iceGatherer, remoteIceParameters, 'controlling');
- dtlsTransport.start(remoteDtlsParameters);
+ iceTransport.start(iceGatherer, remoteIceParameters, 'controlling');
+ dtlsTransport.start(remoteDtlsParameters);
- self._transceive(transceiver,
- direction === 'sendrecv' || direction === 'recvonly',
- direction === 'sendrecv' || direction === 'sendonly');
+ self._transceive(transceiver, direction === 'sendrecv' || direction === 'recvonly', direction === 'sendrecv' || direction === 'sendonly');
- if (rtpReceiver &&
- (direction === 'sendrecv' || direction === 'sendonly')) {
- stream.addTrack(rtpReceiver.track);
- } else {
- // FIXME: actually the receiver should be created later.
- delete transceiver.rtpReceiver;
- }
+ if (rtpReceiver && (direction === 'sendrecv' || direction === 'sendonly')) {
+ stream.addTrack(rtpReceiver.track);
+ } else {
+ // FIXME: actually the receiver should be created later.
+ delete transceiver.rtpReceiver;
}
- });
+ }
+ });
- this.remoteDescription = description;
- 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 + '"');
+ this.remoteDescription = description;
+ 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 + '"');
+ }
+ window.setTimeout(function() {
+ if (self.onaddstream !== null && stream.getTracks().length) {
+ self.remoteStreams.push(stream);
+ window.setTimeout(function() {
+ self.onaddstream({stream: stream});
+ }, 0);
}
- window.setTimeout(function() {
- if (self.onaddstream !== null && stream.getTracks().length) {
- self.remoteStreams.push(stream);
- window.setTimeout(function() {
- self.onaddstream({
- stream: stream
- });
- }, 0);
- }
- }, 0);
- if (arguments.length > 1 && typeof arguments[1] === 'function') {
- window.setTimeout(arguments[1], 0);
- }
- return Promise.resolve();
- };
+ }, 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
@@ -1434,66 +1363,63 @@
this._updateSignalingState('closed');
};
// Update the signaling state.
- window.RTCPeerConnection.prototype._updateSignalingState =
- function(newState) {
- this.signalingState = newState;
- if (this.onsignalingstatechange !== null) {
- this.onsignalingstatechange();
- }
- };
+ window.RTCPeerConnection.prototype._updateSignalingState = function(newState) {
+ this.signalingState = newState;
+ if (this.onsignalingstatechange !== null) {
+ this.onsignalingstatechange();
+ }
+ };
// Determine whether to fire the negotiationneeded event.
- window.RTCPeerConnection.prototype._maybeFireNegotiationNeeded =
- function() {
- // Fire away (for now).
- if (this.onnegotiationneeded !== null) {
- this.onnegotiationneeded();
- }
- };
+ window.RTCPeerConnection.prototype._maybeFireNegotiationNeeded = function() {
+ // Fire away (for now).
+ if (this.onnegotiationneeded !== null) {
+ this.onnegotiationneeded();
+ }
+ };
// 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;
+ 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';
- 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.connecting > 0 || states.completed > 0) {
- newState = 'connected';
- }
+ } else if (states.connecting > 0 || states.completed > 0) {
+ newState = 'connected';
+ }
- if (newState !== self.iceConnectionState) {
- self.iceConnectionState = newState;
- if (this.oniceconnectionstatechange !== null) {
- this.oniceconnectionstatechange();
- }
+ if (newState !== self.iceConnectionState) {
+ self.iceConnectionState = newState;
+ if (this.oniceconnectionstatechange !== null) {
+ this.oniceconnectionstatechange();
}
- };
+ }
+ };
window.RTCPeerConnection.prototype.createOffer = function() {
var self = this;
if (this._pendingOffer) {
@@ -1517,10 +1443,9 @@
// 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.');
+ throw new TypeError('Legacy mandatory/optional constraints not supported.');
}
if (offerOptions.offerToReceiveAudio !== undefined) {
numAudioTracks = offerOptions.offerToReceiveAudio;
}
@@ -1533,10 +1458,9 @@
this.localStreams[0].getTracks().forEach(function(track) {
tracks.push({
kind: track.kind,
track: track,
- wantReceive: track.kind === 'audio' ?
- numAudioTracks > 0 : numVideoTracks > 0
+ wantReceive: track.kind === 'audio' ? numAudioTracks > 0 : numVideoTracks > 0
});
if (track.kind === 'audio') {
numAudioTracks--;
} else if (track.kind === 'video') {
@@ -1546,19 +1470,13 @@
}
// Create M-lines for recvonly streams.
while (numAudioTracks > 0 || numVideoTracks > 0) {
if (numAudioTracks > 0) {
- tracks.push({
- kind: 'audio',
- wantReceive: true
- });
+ tracks.push({kind: 'audio', wantReceive: true});
numAudioTracks--;
}
if (numVideoTracks > 0) {
- tracks.push({
- kind: 'video',
- wantReceive: true
- });
+ tracks.push({kind: 'video', wantReceive: true});
numVideoTracks--;
}
}
@@ -1600,17 +1518,13 @@
sendSsrc: sendSsrc,
recvSsrc: null
};
var transceiver = transceivers[sdpMLineIndex];
- sdp += SDPUtils.writeMediaSection(transceiver,
- transceiver.localCapabilities, 'offer', self.localStreams[0]);
+ sdp += SDPUtils.writeMediaSection(transceiver, transceiver.localCapabilities, 'offer', self.localStreams[0]);
});
this._pendingOffer = transceivers;
- var desc = new RTCSessionDescription({
- type: 'offer',
- sdp: sdp
- });
+ 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);
@@ -1627,20 +1541,14 @@
var sdp = SDPUtils.writeSessionBoilerplate();
this.transceivers.forEach(function(transceiver) {
// Calculate intersection of capabilities.
- var commonCapabilities = self._getCommonCapabilities(
- transceiver.localCapabilities,
- transceiver.remoteCapabilities);
+ var commonCapabilities = self._getCommonCapabilities(transceiver.localCapabilities, transceiver.remoteCapabilities);
- sdp += SDPUtils.writeMediaSection(transceiver, commonCapabilities,
- 'answer', self.localStreams[0]);
+ sdp += SDPUtils.writeMediaSection(transceiver, commonCapabilities, 'answer', self.localStreams[0]);
});
- var desc = new RTCSessionDescription({
- type: 'answer',
- sdp: sdp
- });
+ 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);
@@ -1657,10 +1565,9 @@
}
}
var transceiver = this.transceivers[mLineIndex];
if (transceiver) {
- var cand = Object.keys(candidate.candidate).length > 0 ?
- SDPUtils.parseCandidate(candidate.candidate) : {};
+ 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;
}
@@ -1682,18 +1589,15 @@
window.RTCPeerConnection.prototype.getStats = function() {
var promises = [];
this.transceivers.forEach(function(transceiver) {
- ['rtpSender', 'rtpReceiver', 'iceGatherer', 'iceTransport',
- 'dtlsTransport'
- ].forEach(function(method) {
+ ['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];
+ 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) {
@@ -1776,10 +1680,10 @@
webrtcDetectedVersion: webrtcDetectedVersion,
webrtcMinimumVersion: webrtcMinimumVersion,
webrtcTesting: webrtcTesting,
webrtcUtils: webrtcUtils
- //requestUserMedia: not exposed on purpose.
- //trace: not exposed on purpose.
+ //requestUserMedia: not exposed on purpose.
+ //trace: not exposed on purpose.
};
} else if ((typeof require === 'function') && (typeof define === 'function')) {
// Expose objects and functions when RequireJS is doing the loading.
define([], function() {
@@ -1794,10 +1698,10 @@
webrtcDetectedVersion: webrtcDetectedVersion,
webrtcMinimumVersion: webrtcMinimumVersion,
webrtcTesting: webrtcTesting,
webrtcUtils: webrtcUtils
- //requestUserMedia: not exposed on purpose.
- //trace: not exposed on purpose.
+ //requestUserMedia: not exposed on purpose.
+ //trace: not exposed on purpose.
};
});
}
2017-08-01T12:52:28.702Z - debug: [beautifiers/index.coffee] beautify /*
* 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.
*/
/* More information about these options at jshint.com/docs/options */
/* jshint browser: true, camelcase: true, curly: true, devel: true,
eqeqeq: true, forin: false, globalstrict: true, node: true,
quotmark: single, undef: true, unused: strict */
/* global mozRTCIceCandidate, mozRTCPeerConnection, Promise,
mozRTCSessionDescription, webkitRTCPeerConnection, MediaStreamTrack,
MediaStream, RTCIceGatherer, RTCIceTransport, RTCDtlsTransport,
RTCRtpSender, RTCRtpReceiver*/
/* exported trace,requestUserMedia */
'use strict';
app.livesession.adapterJS = _.bind(function() {
// app.log('adding adapter.js');
var getUserMedia = null;
var attachMediaStream = null;
var reattachMediaStream = null;
var webrtcDetectedBrowser = null;
var webrtcDetectedVersion = null;
var webrtcMinimumVersion = null;
var webrtcUtils = {
log: function() {
// suppress console.log output when being included as a module.
if (typeof module !== 'undefined' ||
typeof require === 'function' && typeof define === 'function') {
return;
}
console.log.apply(console, arguments);
},
extractVersion: function(uastring, expr, pos) {
var match = uastring.match(expr);
return match && match.length >= pos && parseInt(match[pos], 10);
}
};
function trace(text) {
// This function is used for logging.
if (text[text.length - 1] === '\n') {
text = text.substring(0, text.length - 1);
}
if (window.performance) {
var now = (window.performance.now() / 1000).toFixed(3);
webrtcUtils.log(now + ': ' + text);
} else {
webrtcUtils.log(text);
}
}
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() {
// If prefixed srcObject property exists, return it.
// Otherwise use the shimmed property, _srcObject
return 'mozSrcObject' in this ? this.mozSrcObject : this._srcObject;
},
set: function(stream) {
if ('mozSrcObject' in this) {
this.mozSrcObject = stream;
} else {
// Use _srcObject as a private property for this shim
this._srcObject = stream;
// TODO: revokeObjectUrl(this.src) when !stream to release resources?
this.src = URL.createObjectURL(stream);
}
}
});
}
// Proxy existing globals
getUserMedia = window.navigator && window.navigator.getUserMedia;
}
// Attach a media stream to an element.
attachMediaStream = function(element, stream) {
element.srcObject = stream;
};
reattachMediaStream = function(to, from) {
to.srcObject = from.srcObject;
};
if (typeof window === 'undefined' || !window.navigator) {
webrtcUtils.log('This does not appear to be a browser');
webrtcDetectedBrowser = 'not a browser';
} else if (navigator.mozGetUserMedia) {
webrtcUtils.log('This appears to be Firefox');
webrtcDetectedBrowser = 'firefox';
// the detected firefox version.
webrtcDetectedVersion = webrtcUtils.extractVersion(navigator.userAgent,
/Firefox\/([0-9]+)\./, 1);
// the minimum firefox version still supported by adapter.
webrtcMinimumVersion = 31;
// Shim for RTCPeerConnection on older versions.
if (!window.RTCPeerConnection) {
window.RTCPeerConnection = function(pcConfig, pcConstraints) {
if (webrtcDetectedVersion < 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); // jscs:ignore requireCapitalizedConstructors
};
// wrap static methods. Currently just generateCertificate.
if (mozRTCPeerConnection.generateCertificate) {
Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
get: function() {
if (arguments.length) {
return mozRTCPeerConnection.generateCertificate.apply(null,
arguments);
} else {
return mozRTCPeerConnection.generateCertificate;
}
}
});
}
window.RTCSessionDescription = mozRTCSessionDescription;
window.RTCIceCandidate = mozRTCIceCandidate;
}
// getUserMedia constraints shim.
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;
};
if (webrtcDetectedVersion < 38) {
webrtcUtils.log('spec: ' + JSON.stringify(constraints));
if (constraints.audio) {
constraints.audio = constraintsToFF37(constraints.audio);
}
if (constraints.video) {
constraints.video = constraintsToFF37(constraints.video);
}
webrtcUtils.log('ff37: ' + JSON.stringify(constraints));
}
return navigator.mozGetUserMedia(constraints, onSuccess, onError);
};
navigator.getUserMedia = getUserMedia;
// Shim for mediaDevices on older versions.
if (!navigator.mediaDevices) {
navigator.mediaDevices = {
getUserMedia: requestUserMedia,
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 (webrtcDetectedVersion < 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;
});
};
}
} else if (navigator.webkitGetUserMedia && window.webkitRTCPeerConnection) {
webrtcUtils.log('This appears to be Chrome');
webrtcDetectedBrowser = 'chrome';
// the detected chrome version.
webrtcDetectedVersion = webrtcUtils.extractVersion(navigator.userAgent,
/Chrom(e|ium)\/([0-9]+)\./, 2);
// the minimum chrome version still supported by adapter.
webrtcMinimumVersion = 38;
// The RTCPeerConnection object.
window.RTCPeerConnection = function(pcConfig, pcConstraints) {
// Translate iceTransportPolicy to iceTransports,
// see https://code.google.com/p/webrtc/issues/detail?id=4869
if (pcConfig && pcConfig.iceTransportPolicy) {
pcConfig.iceTransports = pcConfig.iceTransportPolicy;
}
var pc = new webkitRTCPeerConnection(pcConfig, pcConstraints); // jscs:ignore requireCapitalizedConstructors
var origGetStats = pc.getStats.bind(pc);
pc.getStats = function(selector, successCallback, errorCallback) { // jshint ignore: line
var self = this;
var args = arguments;
// If selector is a function then we are in the old style stats so just
// pass back the original getStats format to avoid breaking old users.
if (arguments.length > 0 && typeof selector === 'function') {
return origGetStats(selector, successCallback);
}
var fixChromeStats = function(response) {
var standardReport = {};
var reports = response.result();
reports.forEach(function(report) {
var standardStats = {
id: report.id,
timestamp: report.timestamp,
type: report.type
};
report.names().forEach(function(name) {
standardStats[name] = report.stat(name);
});
standardReport[standardStats.id] = standardStats;
});
return standardReport;
};
if (arguments.length >= 2) {
var successCallbackWrapper = function(response) {
args[1](fixChromeStats(response));
};
return origGetStats.apply(this, [successCallbackWrapper, arguments[0]]);
}
// promise-support
return new Promise(function(resolve, reject) {
if (args.length === 1 && selector === null) {
origGetStats.apply(self, [
function(response) {
resolve.apply(null, [fixChromeStats(response)]);
},
reject
]);
} else {
origGetStats.apply(self, [resolve, reject]);
}
});
};
return pc;
};
// wrap static methods. Currently just generateCertificate.
if (webkitRTCPeerConnection.generateCertificate) {
Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
get: function() {
if (arguments.length) {
return webkitRTCPeerConnection.generateCertificate.apply(null,
arguments);
} else {
return webkitRTCPeerConnection.generateCertificate;
}
}
});
}
// add promise support
['createOffer', 'createAnswer'].forEach(function(method) {
var nativeMethod = webkitRTCPeerConnection.prototype[method];
webkitRTCPeerConnection.prototype[method] = function() {
var self = this;
if (arguments.length < 1 || (arguments.length === 1 &&
typeof(arguments[0]) === 'object')) {
var opts = arguments.length === 1 ? arguments[0] : undefined;
return new Promise(function(resolve, reject) {
nativeMethod.apply(self, [resolve, reject, opts]);
});
} else {
return nativeMethod.apply(this, arguments);
}
};
});
['setLocalDescription', 'setRemoteDescription',
'addIceCandidate'
].forEach(function(method) {
var nativeMethod = webkitRTCPeerConnection.prototype[method];
webkitRTCPeerConnection.prototype[method] = function() {
var args = arguments;
var self = this;
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]);
}
}
]);
});
};
});
// getUserMedia constraints shim.
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;
};
getUserMedia = function(constraints, onSuccess, onError) {
if (constraints.audio) {
constraints.audio = constraintsToChrome(constraints.audio);
}
if (constraints.video) {
constraints.video = constraintsToChrome(constraints.video);
}
webrtcUtils.log('chrome: ' + JSON.stringify(constraints));
return navigator.webkitGetUserMedia(constraints, onSuccess, onError);
};
navigator.getUserMedia = getUserMedia;
if (!navigator.mediaDevices) {
navigator.mediaDevices = {
getUserMedia: requestUserMedia,
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 requestUserMedia(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) {
webrtcUtils.log('spec: ' + JSON.stringify(c)); // whitespace for alignment
c.audio = constraintsToChrome(c.audio);
c.video = constraintsToChrome(c.video);
webrtcUtils.log('chrome: ' + JSON.stringify(c));
return origGetUserMedia(c);
};
}
// Dummy devicechange event methods.
// TODO(KaptenJansson) remove once implemented in Chrome stable.
if (typeof navigator.mediaDevices.addEventListener === 'undefined') {
navigator.mediaDevices.addEventListener = function() {
webrtcUtils.log('Dummy mediaDevices.addEventListener called.');
};
}
if (typeof navigator.mediaDevices.removeEventListener === 'undefined') {
navigator.mediaDevices.removeEventListener = function() {
webrtcUtils.log('Dummy mediaDevices.removeEventListener called.');
};
}
// Attach a media stream to an element.
attachMediaStream = function(element, stream) {
if (webrtcDetectedVersion >= 43) {
element.srcObject = stream;
} else if (typeof element.src !== 'undefined') {
element.src = URL.createObjectURL(stream);
} else {
webrtcUtils.log('Error attaching stream to element.');
}
};
reattachMediaStream = function(to, from) {
if (webrtcDetectedVersion >= 43) {
to.srcObject = from.srcObject;
} else {
to.src = from.src;
}
};
} else if (navigator.mediaDevices && navigator.userAgent.match(
/Edge\/(\d+).(\d+)$/)) {
webrtcUtils.log('This appears to be Edge');
webrtcDetectedBrowser = 'edge';
webrtcDetectedVersion = webrtcUtils.extractVersion(navigator.userAgent,
/Edge\/(\d+).(\d+)$/, 2);
// The minimum version still supported by adapter.
// This is the build number for Edge.
webrtcMinimumVersion = 10547;
if (window.RTCIceGatherer) {
// Generate an alphanumeric identifier for cname or mids.
// TODO: use UUIDs instead? https://gist.github.com/jed/982883
var generateIdentifier = function() {
return Math.random().toString(36).substr(2, 10);
};
// The RTCP CNAME used by all peerconnections from the same JS.
var localCName = generateIdentifier();
// SDP helpers - to be moved into separate module.
var SDPUtils = {};
// 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('\r\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
parsed.numChannels = parts.length === 3 ? parseInt(parts[2], 10) : 1; // was: channels
return parsed;
};
// Generate an a=rtpmap line from RTCRtpCodecCapability or RTCRtpCodecParameters.
SDPUtils.writeRtpMap = function(codec) {
var pt = codec.payloadType;
if (codec.preferredPayloadType !== undefined) {
pt = codec.preferredPayloadType;
}
return 'a=rtpmap:' + pt + ' ' + codec.name + '/' + codec.clockRate +
(codec.numChannels !== 1 ? '/' + codec.numChannels : '') + '\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.writeFtmp = function(codec) {
var line = '';
var pt = codec.payloadType;
if (codec.preferredPayloadType !== undefined) {
pt = codec.preferredPayloadType;
}
if (codec.parameters && 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: line.substr(7, sp - 7),
};
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);
lines = lines.concat(SDPUtils.splitLines(sessionpart)); // Search in session part, too.
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);
lines = lines.concat(SDPUtils.splitLines(sessionpart)); // Search in session part, too.
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);
}
}
// FIXME: parse headerExtensions, fecMechanisms and 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.writeFtmp(codec);
sdp += SDPUtils.writeRtcpFb(codec);
});
// FIXME: add headerExtensions, fecMechanismş and rtcp.
sdp += 'a=rtcp-mux\r\n';
return sdp;
};
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.sendSsrc + ' ' + msid;
}
// FIXME: this should be written by writeRtpDescription.
sdp += 'a=ssrc:' + transceiver.sendSsrc + ' cname:' +
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);
}
}
if (sessionpart) {
return SDPUtils.getDirection(sessionpart);
}
return 'sendrecv';
};
// 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;
this.onicecandidate = null;
this.onaddstream = 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.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');
}
}
if (config && config.iceServers) {
// Edge does not like
// 1) stun:
// 2) turn: that does not have all of turn:host:port?transport=udp
// 3) an array of urls
config.iceServers.forEach(function(server) {
if (server.urls) {
var url;
if (typeof(server.urls) === 'string') {
url = server.urls;
} else {
url = server.urls[0];
}
if (url.indexOf('transport=udp') !== -1) {
self.iceServers.push({
username: server.username,
credential: server.credential,
urls: url
});
}
}
});
}
// 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;
// FIXME: need to apply ice candidates in a way which is async but in-order
this._localIceCandidatesBuffer.forEach(function(event) {
if (self.onicecandidate !== null) {
self.onicecandidate(event);
}
});
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 = {};
event.candidate = {
sdpMid: mid,
sdpMLineIndex: sdpMLineIndex
};
var cand = evt.candidate;
// Edge emits an empty object for RTCIceCandidateComplete‥
if (!cand || Object.keys(cand).length === 0) {
// 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';
});
// FIXME: update .localDescription with candidate and (potentially) end-of-candidates.
// To make this harder, the gatherer might emit candidates before localdescription
// is set. To make things worse, gather.getLocalCandidates still errors in
// Edge 10547 when no candidates have been gathered yet.
if (self.onicecandidate !== null) {
// Emit candidate if localDescription is set.
// Also emits null candidate when all gatherers are complete.
if (self.localDescription && self.localDescription.type === '') {
self._localIceCandidatesBuffer.push(event);
if (complete) {
self._localIceCandidatesBuffer.push({});
}
} else {
self.onicecandidate(event);
if (complete) {
self.onicecandidate({});
}
}
}
};
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 = [{
ssrc: transceiver.sendSsrc
}];
params.rtcp = {
cname: localCName,
ssrc: transceiver.recvSsrc
};
transceiver.rtpSender.send(params);
}
if (recv && transceiver.rtpReceiver) {
params.encodings = [{
ssrc: transceiver.recvSsrc
}];
params.rtcp = {
cname: transceiver.cname,
ssrc: transceiver.sendSsrc
};
transceiver.rtpReceiver.receive(params);
}
};
window.RTCPeerConnection.prototype.setLocalDescription =
function(description) {
var self = this;
if (description.type === 'offer') {
if (!this._pendingOffer) {} else {
this.transceivers = this._pendingOffer;
delete this._pendingOffer;
}
} else if (description.type === 'answer') {
var sections = SDPUtils.splitSections(self.remoteDescription.sdp);
var 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 = description;
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();
self._emitBufferedCandidates();
}, 0);
}
var p = Promise.resolve();
p.then(function() {
if (!hasCallback) {
window.setTimeout(self._emitBufferedCandidates.bind(self), 0);
}
});
return p;
};
window.RTCPeerConnection.prototype.setRemoteDescription =
function(description) {
var self = this;
var stream = new MediaStream();
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 sendSsrc;
var recvSsrc;
var localCapabilities;
// 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);
}
var mid = SDPUtils.matchPrefix(mediaSection, 'a=mid:')[0].substr(6);
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) {
recvSsrc = parseInt(remoteSsrc.ssrc, 10);
cname = remoteSsrc.value;
}
if (description.type === 'offer') {
var transports = self._createIceAndDtlsTransports(mid, sdpMLineIndex);
localCapabilities = RTCRtpReceiver.getCapabilities(kind);
sendSsrc = (2 * sdpMLineIndex + 2) * 1001;
rtpReceiver = new RTCRtpReceiver(transports.dtlsTransport, kind);
// FIXME: not correct when there are multiple streams but that is
// not currently supported in this shim.
stream.addTrack(rtpReceiver.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,
sendSsrc: sendSsrc,
recvSsrc: recvSsrc
};
// 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;
sendSsrc = transceiver.sendSsrc;
//recvSsrc = transceiver.recvSsrc;
localCapabilities = transceiver.localCapabilities;
self.transceivers[sdpMLineIndex].recvSsrc = recvSsrc;
self.transceivers[sdpMLineIndex].remoteCapabilities =
remoteCapabilities;
self.transceivers[sdpMLineIndex].cname = cname;
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')) {
stream.addTrack(rtpReceiver.track);
} else {
// FIXME: actually the receiver should be created later.
delete transceiver.rtpReceiver;
}
}
});
this.remoteDescription = description;
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 + '"');
}
window.setTimeout(function() {
if (self.onaddstream !== null && stream.getTracks().length) {
self.remoteStreams.push(stream);
window.setTimeout(function() {
self.onaddstream({
stream: stream
});
}, 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;
if (this.onsignalingstatechange !== null) {
this.onsignalingstatechange();
}
};
// Determine whether to fire the negotiationneeded event.
window.RTCPeerConnection.prototype._maybeFireNegotiationNeeded =
function() {
// Fire away (for now).
if (this.onnegotiationneeded !== null) {
this.onnegotiationneeded();
}
};
// 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.connecting > 0 || states.completed > 0) {
newState = 'connected';
}
if (newState !== self.iceConnectionState) {
self.iceConnectionState = newState;
if (this.oniceconnectionstatechange !== null) {
this.oniceconnectionstatechange();
}
}
};
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 = 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 sendSsrc = (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,
sendSsrc: sendSsrc,
recvSsrc: 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 answerOptions;
if (arguments.length === 1 && typeof arguments[0] !== 'function') {
answerOptions = arguments[0];
} else if (arguments.length === 3) {
answerOptions = arguments[2];
}
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);
}
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);
});
});
};
}
} else {
webrtcUtils.log('Browser does not appear to be WebRTC-capable');
}
// Polyfill ontrack on browsers that don't yet have it
if (typeof window === 'object' && !('ontrack' in window.RTCPeerConnection)) {
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));
}
});
}
// Returns the result of getUserMedia as a Promise.
function requestUserMedia(constraints) {
return new Promise(function(resolve, reject) {
getUserMedia(constraints, resolve, reject);
});
}
var webrtcTesting = {};
try {
Object.defineProperty(webrtcTesting, 'version', {
set: function(version) {
webrtcDetectedVersion = version;
}
});
} catch (e) {}
if (typeof module !== 'undefined') {
var RTCPeerConnection;
var RTCIceCandidate;
var RTCSessionDescription;
if (typeof window !== 'undefined') {
RTCPeerConnection = window.RTCPeerConnection;
RTCIceCandidate = window.RTCIceCandidate;
RTCSessionDescription = window.RTCSessionDescription;
}
module.exports = {
RTCPeerConnection: RTCPeerConnection,
RTCIceCandidate: RTCIceCandidate,
RTCSessionDescription: RTCSessionDescription,
getUserMedia: getUserMedia,
attachMediaStream: attachMediaStream,
reattachMediaStream: reattachMediaStream,
webrtcDetectedBrowser: webrtcDetectedBrowser,
webrtcDetectedVersion: webrtcDetectedVersion,
webrtcMinimumVersion: webrtcMinimumVersion,
webrtcTesting: webrtcTesting,
webrtcUtils: webrtcUtils
//requestUserMedia: not exposed on purpose.
//trace: not exposed on purpose.
};
} else if ((typeof require === 'function') && (typeof define === 'function')) {
// Expose objects and functions when RequireJS is doing the loading.
define([], function() {
return {
RTCPeerConnection: window.RTCPeerConnection,
RTCIceCandidate: window.RTCIceCandidate,
RTCSessionDescription: window.RTCSessionDescription,
getUserMedia: getUserMedia,
attachMediaStream: attachMediaStream,
reattachMediaStream: reattachMediaStream,
webrtcDetectedBrowser: webrtcDetectedBrowser,
webrtcDetectedVersion: webrtcDetectedVersion,
webrtcMinimumVersion: webrtcMinimumVersion,
webrtcTesting: webrtcTesting,
webrtcUtils: webrtcUtils
//requestUserMedia: not exposed on purpose.
//trace: not exposed on purpose.
};
});
}
}, this);
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arduino:
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{ _default: {} } ] Babel ES6 JavaScript /Users/waldgeist/Documents/Development/htdocs/aiddogs/webapp/packages/guzz-live-session-standard/vendor/adapter.js undefined
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wrap_line_length=250, wrap_attributes=auto, wrap_attributes_indent_size=2, preserve_newlines=true, max_preserve_newlines=10, unformatted=[a, abbr, area, audio, b, bdi, bdo, br, button, canvas, cite, code, data, datalist, del, dfn, em, embed, i, iframe, img, input, ins, kbd, keygen, label, map, mark, math, meter, noscript, object, output, progress, q, ruby, s, samp, select, small, span, strong, sub, sup, svg, template, textarea, time, u, var, video, wbr, text, acronym, address, big, dt, ins, small, strike, tt, pre, h1, h2, h3, h4, h5, h6], extra_liners=[head, body, /html], disabled=false, default_beautifier=JS Beautify, indent_size=2, indent_char= , disabled=false, default_beautifier=Pug Beautify, beautify_on_save=false, configPath=, disabled=false, default_beautifier=Uncrustify, beautify_on_save=false, beautify_on_save=true, end_with_newline=true, indent_size=2, indent_char= , indent_level=0, indent_with_tabs=false, preserve_newlines=true, max_preserve_newlines=10, space_in_paren=false, jslint_happy=false, space_after_anon_function=false, brace_style=collapse, break_chained_methods=false, keep_array_indentation=false, keep_function_indentation=false, space_before_conditional=true, eval_code=false, unescape_strings=false, wrap_line_length=0, end_with_comma=false, end_of_line=System Default, disabled=false, default_beautifier=JS Beautify, beautify_on_save=true, indent_size=2, indent_char= , indent_level=0, indent_with_tabs=false, preserve_newlines=true, max_preserve_newlines=10, space_in_paren=false, jslint_happy=false, space_after_anon_function=false, brace_style=collapse, break_chained_methods=false, keep_array_indentation=false, keep_function_indentation=false, space_before_conditional=true, eval_code=false, unescape_strings=false, wrap_line_length=0, end_with_newline=false, end_with_comma=false, end_of_line=System Default, disabled=false, default_beautifier=JS Beautify, beautify_on_save=true, e4x=true, indent_size=2, indent_char= , indent_level=0, indent_with_tabs=false, preserve_newlines=true, max_preserve_newlines=10, space_in_paren=false, jslint_happy=false, space_after_anon_function=false, brace_style=collapse, break_chained_methods=false, keep_array_indentation=false, keep_function_indentation=false, space_before_conditional=true, eval_code=false, unescape_strings=false, wrap_line_length=0, end_with_newline=false, end_with_comma=false, end_of_line=System Default, disabled=false, default_beautifier=Pretty Diff, indent_char= , indent_with_tabs=false, indent_preamble=false, always_look_for_split_braces=true, always_look_for_split_brackets=false, remove_trailing_whitespace=false, align_columns_in_environments=[tabular, matrix, bmatrix, pmatrix], disabled=false, default_beautifier=Latex Beautify, beautify_on_save=false, indent_size=2, indent_char= , newline_between_rules=true, preserve_newlines=false, wrap_line_length=0, indent_comments=true, force_indentation=false, convert_quotes=none, align_assignments=false, no_lead_zero=false, configPath=, predefinedConfig=csscomb, disabled=false, default_beautifier=Pretty Diff, beautify_on_save=false, end_of_line=System Default, disabled=false, default_beautifier=Lua beautifier, beautify_on_save=false, gfm=true, yaml=true, commonmark=false, disabled=false, default_beautifier=Tidy Markdown, beautify_on_save=false, indent_size=2, indent_char= , syntax=html, indent_inner_html=false, brace_style=collapse, indent_scripts=normal, wrap_line_length=250, wrap_attributes=auto, wrap_attributes_indent_size=2, preserve_newlines=true, max_preserve_newlines=10, unformatted=[a, abbr, area, audio, b, bdi, bdo, br, button, canvas, cite, code, data, datalist, del, dfn, em, embed, i, iframe, img, input, ins, kbd, keygen, label, map, mark, math, meter, noscript, object, output, progress, q, ruby, s, samp, select, small, span, strong, sub, sup, svg, template, textarea, time, u, var, video, wbr, text, acronym, address, big, dt, ins, small, strike, tt, pre, h1, h2, h3, h4, h5, h6], end_with_newline=false, extra_liners=[head, body, /html], disabled=false, default_beautifier=Marko Beautifier, beautify_on_save=false, indent_inner_html=false, indent_size=2, indent_char= , brace_style=collapse, indent_scripts=normal, wrap_line_length=250, wrap_attributes=auto, wrap_attributes_indent_size=2, preserve_newlines=true, max_preserve_newlines=10, unformatted=[a, abbr, area, audio, b, bdi, bdo, br, button, canvas, cite, code, data, datalist, del, dfn, em, embed, i, iframe, img, input, ins, kbd, keygen, label, map, mark, math, meter, noscript, object, output, progress, q, ruby, s, samp, select, small, span, strong, sub, sup, svg, template, textarea, time, u, var, video, wbr, text, acronym, address, big, dt, strike, tt, pre, h1, h2, h3, h4, h5, h6], end_with_newline=false, extra_liners=[head, body, /html], disabled=false, default_beautifier=JS Beautify, beautify_on_save=false, indent_size=2, indent_char= , indent_with_tabs=false, dontJoinCurlyBracet=true, disabled=false, default_beautifier=Nginx Beautify, beautify_on_save=false, indent_size=2, indent_char= , wrap_line_length=250, preserve_newlines=true, disabled=false, default_beautifier=Pretty Diff, beautify_on_save=false, configPath=, disabled=false, default_beautifier=Uncrustify, beautify_on_save=false, disabled=false, default_beautifier=ocp-indent, beautify_on_save=false, configPath=, disabled=false, default_beautifier=Uncrustify, beautify_on_save=false, perltidy_profile=, disabled=false, default_beautifier=Perltidy, beautify_on_save=false, beautify_on_save=true, cs_fixer_path=, cs_fixer_version=2, cs_fixer_config_file=, fixers=, level=, rules=, allow_risky=no, phpcbf_path=, phpcbf_version=2, standard=PEAR, disabled=false, default_beautifier=PHP-CS-Fixer, disabled=false, default_beautifier=puppet-lint, beautify_on_save=false, max_line_length=79, indent_size=4, ignore=[E24], formater=autopep8, style_config=pep8, sort_imports=false, multi_line_output=Hanging Grid Grouped, disabled=false, default_beautifier=autopep8, beautify_on_save=false, indent_size=2, disabled=false, default_beautifier=formatR, beautify_on_save=false, indent_size=2, indent_char= , wrap_line_length=250, preserve_newlines=true, disabled=false, default_beautifier=Pretty Diff, beautify_on_save=false, indent_size=2, indent_char= , rubocop_path=, disabled=false, default_beautifier=Rubocop, beautify_on_save=false, rustfmt_path=, disabled=false, default_beautifier=rustfmt, beautify_on_save=false, disabled=false, default_beautifier=SassConvert, beautify_on_save=false, beautify_on_save=true, newline_between_rules=true, preserve_newlines=true, indent_size=2, indent_char= , wrap_line_length=0, indent_comments=true, force_indentation=false, convert_quotes=none, align_assignments=false, no_lead_zero=false, configPath=, predefinedConfig=csscomb, disabled=false, default_beautifier=Pretty Diff, beautify_on_save=true, indent_size=2, indent_char= , wrap_line_length=250, preserve_newlines=true, disabled=false, default_beautifier=Pretty Diff, indent_size=2, keywords=upper, identifiers=unchanged, disabled=false, default_beautifier=sqlformat, beautify_on_save=false, beautify_on_save=true, indent_size=2, indent_char= , wrap_line_length=250, preserve_newlines=true, disabled=false, default_beautifier=Pretty Diff, indent_size=2, indent_char= , wrap_line_length=250, preserve_newlines=true, disabled=false, default_beautifier=Pretty Diff, beautify_on_save=false, indent_size=2, indent_char= , newline_between_rules=true, preserve_newlines=false, wrap_line_length=0, indent_comments=true, force_indentation=false, convert_quotes=none, align_assignments=false, no_lead_zero=false, disabled=false, default_beautifier=Pretty Diff, beautify_on_save=false, indent_size=2, indent_char= , indent_with_tabs=false, preserve_newlines=true, space_in_paren=false, space_after_anon_function=false, break_chained_methods=false, wrap_line_length=250, end_with_comma=false, disabled=false, default_beautifier=Pretty Diff, 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beautify_on_save=false, padding=0, disabled=false, default_beautifier=align-yaml, beautify_on_save=false, , indent_style=space, indent_size=2, end_of_line=lf, charset=utf-8, trim_trailing_whitespace=true, insert_final_newline=true, tab_width=2, indent_char= , , , , , , , preserve_ternary_lines=true, formatObject=true, preserve_ternary_lines=true, , ,
2017-08-01T12:52:28.705Z - verbose: [beautifiers/index.coffee] [ { name: 'JSX',
namespace: 'jsx',
fallback: [ 'js' ],
grammars:
[ 'JSX',
'JavaScript (JSX)',
'Babel ES6 JavaScript',
'JavaScript with JSX' ],
extensions: [ 'jsx', 'js' ],
defaultBeautifier: 'Pretty Diff',
options: { e4x: [Object] } },
{ name: 'JavaScript',
namespace: 'js',
scope: [ 'source.js' ],
grammars: [ 'JavaScript' ],
extensions: [ 'js' ],
defaultBeautifier: 'JS Beautify',
options:
{ indent_size: [Object],
indent_char: [Object],
indent_level: [Object],
indent_with_tabs: [Object],
preserve_newlines: [Object],
max_preserve_newlines: [Object],
space_in_paren: [Object],
jslint_happy: [Object],
space_after_anon_function: [Object],
brace_style: [Object],
break_chained_methods: [Object],
keep_array_indentation: [Object],
keep_function_indentation: [Object],
space_before_conditional: [Object],
eval_code: [Object],
unescape_strings: [Object],
wrap_line_length: [Object],
end_with_newline: [Object],
end_with_comma: [Object],
end_of_line: [Object] } } ] 'Babel ES6 JavaScript' 'js'
2017-08-01T12:52:28.705Z - verbose: [beautifiers/index.coffee] Language JSX supported
2017-08-01T12:52:28.705Z - verbose: [beautifiers/index.coffee] getOptions selections [ 'js', 'jsx' ] indent_size=2, indent_char= , indent_with_tabs=false, configPath=, disabled=false, default_beautifier=Uncrustify, beautify_on_save=false, configPath=, disabled=false, default_beautifier=Uncrustify, beautify_on_save=false, indent_size=2, disabled=false, default_beautifier=beautysh, beautify_on_save=false, beautify_on_save=true, configPath=/Users/waldgeist/Documents/Development/htdocs/marble/unity/.uncrustify.cfg, disabled=false, default_beautifier=Uncrustify, configPath=, disabled=false, default_beautifier=Uncrustify, beautify_on_save=false, disabled=false, default_beautifier=cljfmt, beautify_on_save=false, indent_size=2, indent_char= , indent_level=0, indent_with_tabs=false, preserve_newlines=true, max_preserve_newlines=10, space_in_paren=false, jslint_happy=false, space_after_anon_function=false, brace_style=collapse, break_chained_methods=false, keep_array_indentation=false, keep_function_indentation=false, space_before_conditional=true, eval_code=false, unescape_strings=false, wrap_line_length=0, end_with_newline=false, end_with_comma=false, end_of_line=System Default, disabled=false, default_beautifier=coffee-fmt, beautify_on_save=false, indent_size=2, indent_char= , wrap_line_length=250, preserve_newlines=true, disabled=false, default_beautifier=Pretty Diff, beautify_on_save=false, configPath=, disabled=false, default_beautifier=Uncrustify, beautify_on_save=false, disabled=false, default_beautifier=Crystal, beautify_on_save=false, beautify_on_save=true, newline_between_rules=true, preserve_newlines=true, indent_size=2, indent_char= , selector_separator_newline=false, wrap_line_length=0, end_with_newline=false, indent_comments=true, force_indentation=false, convert_quotes=none, align_assignments=false, no_lead_zero=false, configPath=, predefinedConfig=csscomb, disabled=false, default_beautifier=JS Beautify, beautify_on_save=true, disabled=false, default_beautifier=Pretty Diff, configPath=, disabled=false, default_beautifier=Uncrustify, beautify_on_save=false, indent_size=2, indent_char= , indent_level=0, indent_with_tabs=false, preserve_newlines=true, max_preserve_newlines=10, space_in_paren=false, jslint_happy=false, space_after_anon_function=false, brace_style=collapse, break_chained_methods=false, keep_array_indentation=false, keep_function_indentation=false, space_before_conditional=true, eval_code=false, unescape_strings=false, wrap_line_length=250, end_with_newline=false, end_with_comma=false, end_of_line=System Default, indent_inner_html=false, indent_scripts=normal, wrap_attributes=auto, wrap_attributes_indent_size=2, unformatted=[a, abbr, area, audio, b, bdi, bdo, br, button, canvas, cite, code, data, datalist, del, dfn, em, embed, i, iframe, img, input, ins, kbd, keygen, label, map, mark, math, meter, noscript, object, output, progress, q, ruby, s, samp, select, small, span, strong, sub, sup, svg, template, textarea, time, u, var, video, wbr, text, acronym, address, big, dt, ins, small, strike, tt, pre, h1, h2, h3, h4, h5, h6], extra_liners=[head, body, /html], disabled=false, default_beautifier=JS Beautify, beautify_on_save=false, disabled=false, default_beautifier=elm-format, beautify_on_save=false, indent_size=2, indent_char= , wrap_line_length=250, preserve_newlines=true, disabled=false, default_beautifier=Pretty Diff, beautify_on_save=false, disabled=false, default_beautifier=erl_tidy, beautify_on_save=false, indent_size=2, indent_char= , disabled=false, default_beautifier=Gherkin formatter, beautify_on_save=false, configPath=, disabled=false, default_beautifier=clang-format, beautify_on_save=false, disabled=false, default_beautifier=gofmt, beautify_on_save=false, indent_size=2, indent_char= , wrap_line_length=250, preserve_newlines=true, disabled=false, default_beautifier=Pretty Diff, beautify_on_save=false, emacs_path=, emacs_script_path=, disabled=false, default_beautifier=Fortran Beautifier, beautify_on_save=false, beautify_on_save=true, indent_inner_html=false, indent_size=2, indent_char= , brace_style=collapse, indent_scripts=normal, wrap_line_length=250, wrap_attributes=auto, wrap_attributes_indent_size=2, preserve_newlines=true, max_preserve_newlines=10, unformatted=[a, abbr, area, audio, b, bdi, bdo, br, button, canvas, cite, code, data, datalist, del, dfn, em, embed, i, iframe, img, input, ins, kbd, keygen, label, map, mark, math, meter, noscript, object, output, progress, q, ruby, s, samp, select, small, span, strong, sub, sup, svg, template, textarea, time, u, var, video, wbr, text, acronym, address, big, dt, ins, small, strike, tt, pre, h1, h2, h3, h4, h5, h6], end_with_newline=false, extra_liners=[head, body, /html], disabled=false, default_beautifier=JS Beautify, disabled=false, default_beautifier=stylish-haskell, beautify_on_save=false, beautify_on_save=true, end_with_newline=true, indent_inner_html=false, indent_size=2, indent_char= , brace_style=collapse, indent_scripts=normal, wrap_line_length=250, wrap_attributes=auto, wrap_attributes_indent_size=2, preserve_newlines=true, max_preserve_newlines=10, unformatted=[a, abbr, area, audio, b, bdi, bdo, br, button, canvas, cite, code, data, datalist, del, dfn, em, embed, i, iframe, img, input, ins, kbd, keygen, label, map, mark, math, meter, noscript, object, output, progress, q, ruby, s, samp, select, small, span, strong, sub, sup, svg, template, textarea, time, u, var, video, wbr, text, acronym, address, big, dt, ins, small, strike, tt, pre, h1, h2, h3, h4, h5, h6], extra_liners=[head, body, /html], disabled=false, default_beautifier=JS Beautify, indent_size=2, indent_char= , disabled=false, default_beautifier=Pug Beautify, beautify_on_save=false, configPath=, disabled=false, default_beautifier=Uncrustify, beautify_on_save=false, beautify_on_save=true, end_with_newline=true, indent_size=2, indent_char= , indent_level=0, indent_with_tabs=false, preserve_newlines=true, max_preserve_newlines=10, space_in_paren=false, jslint_happy=false, space_after_anon_function=false, brace_style=collapse, break_chained_methods=false, keep_array_indentation=false, keep_function_indentation=false, space_before_conditional=true, eval_code=false, unescape_strings=false, wrap_line_length=0, end_with_comma=false, end_of_line=System Default, disabled=false, default_beautifier=JS Beautify, beautify_on_save=true, indent_size=2, indent_char= , indent_level=0, indent_with_tabs=false, preserve_newlines=true, max_preserve_newlines=10, space_in_paren=false, jslint_happy=false, space_after_anon_function=false, brace_style=collapse, break_chained_methods=false, keep_array_indentation=false, keep_function_indentation=false, space_before_conditional=true, eval_code=false, unescape_strings=false, wrap_line_length=0, end_with_newline=false, end_with_comma=false, end_of_line=System Default, disabled=false, default_beautifier=JS Beautify, beautify_on_save=true, e4x=true, indent_size=2, 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2017-08-01T12:52:28.707Z - verbose: [beautifiers/index.coffee] true indent_size=2, indent_char= , indent_with_tabs=false
2017-08-01T12:52:28.707Z - verbose: [beautifiers/index.coffee] options js
2017-08-01T12:52:28.708Z - verbose: [beautifiers/index.coffee] options js indent_size=2, indent_char= , indent_with_tabs=false
2017-08-01T12:52:28.708Z - verbose: [beautifiers/index.coffee] options jsx
2017-08-01T12:52:28.708Z - verbose: [beautifiers/index.coffee] options jsx indent_size=2, indent_char= , indent_with_tabs=false
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2017-08-01T12:52:28.709Z - verbose: [beautifiers/index.coffee] options jsx beautify_on_save=true, e4x=true, indent_size=2, indent_char= , indent_level=0, indent_with_tabs=false, preserve_newlines=true, max_preserve_newlines=10, space_in_paren=false, jslint_happy=false, space_after_anon_function=false, brace_style=collapse, break_chained_methods=false, keep_array_indentation=false, keep_function_indentation=false, space_before_conditional=true, eval_code=false, unescape_strings=false, wrap_line_length=0, end_with_newline=false, end_with_comma=false, end_of_line=System Default, disabled=false, default_beautifier=Pretty Diff
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2017-08-01T12:52:28.712Z - verbose: [beautifiers/index.coffee] Babel ES6 JavaScript name=JSX, namespace=jsx, fallback=[js], grammars=[JSX, JavaScript (JSX), Babel ES6 JavaScript, JavaScript with JSX], extensions=[jsx, js], defaultBeautifier=Pretty Diff, type=boolean, default=true, description=Support e4x/jsx syntax
2017-08-01T12:52:28.712Z - verbose: [beautifiers/index.coffee] language options: {
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predefinedConfig=csscomb, disabled=false, default_beautifier=Pretty Diff, beautify_on_save=false, end_of_line=System Default, disabled=false, default_beautifier=Lua beautifier, beautify_on_save=false, gfm=true, yaml=true, commonmark=false, disabled=false, default_beautifier=Tidy Markdown, beautify_on_save=false, indent_size=2, indent_char= , syntax=html, indent_inner_html=false, brace_style=collapse, indent_scripts=normal, wrap_line_length=250, wrap_attributes=auto, wrap_attributes_indent_size=2, preserve_newlines=true, max_preserve_newlines=10, unformatted=[a, abbr, area, audio, b, bdi, bdo, br, button, canvas, cite, code, data, datalist, del, dfn, em, embed, i, iframe, img, input, ins, kbd, keygen, label, map, mark, math, meter, noscript, object, output, progress, q, ruby, s, samp, select, small, span, strong, sub, sup, svg, template, textarea, time, u, var, video, wbr, text, acronym, address, big, dt, ins, small, strike, tt, pre, h1, h2, h3, h4, h5, h6], end_with_newline=false, extra_liners=[head, body, /html], disabled=false, default_beautifier=Marko Beautifier, beautify_on_save=false, indent_inner_html=false, indent_size=2, indent_char= , brace_style=collapse, indent_scripts=normal, wrap_line_length=250, wrap_attributes=auto, wrap_attributes_indent_size=2, preserve_newlines=true, max_preserve_newlines=10, unformatted=[a, abbr, area, audio, b, bdi, bdo, br, button, canvas, cite, code, data, datalist, del, dfn, em, embed, i, iframe, img, input, ins, kbd, keygen, label, map, mark, math, meter, noscript, object, output, progress, q, ruby, s, samp, select, small, span, strong, sub, sup, svg, template, textarea, time, u, var, video, wbr, text, acronym, address, big, dt, strike, tt, pre, h1, h2, h3, h4, h5, h6], end_with_newline=false, extra_liners=[head, body, /html], disabled=false, default_beautifier=JS Beautify, beautify_on_save=false, indent_size=2, indent_char= , indent_with_tabs=false, dontJoinCurlyBracet=true, disabled=false, default_beautifier=Nginx Beautify, beautify_on_save=false, indent_size=2, indent_char= , wrap_line_length=250, preserve_newlines=true, disabled=false, default_beautifier=Pretty Diff, beautify_on_save=false, configPath=, disabled=false, default_beautifier=Uncrustify, beautify_on_save=false, disabled=false, default_beautifier=ocp-indent, beautify_on_save=false, configPath=, disabled=false, default_beautifier=Uncrustify, beautify_on_save=false, perltidy_profile=, disabled=false, default_beautifier=Perltidy, beautify_on_save=false, beautify_on_save=true, cs_fixer_path=, cs_fixer_version=2, cs_fixer_config_file=, fixers=, level=, rules=, allow_risky=no, phpcbf_path=, phpcbf_version=2, standard=PEAR, disabled=false, default_beautifier=PHP-CS-Fixer, disabled=false, default_beautifier=puppet-lint, beautify_on_save=false, max_line_length=79, indent_size=4, ignore=[E24], formater=autopep8, style_config=pep8, sort_imports=false, multi_line_output=Hanging Grid Grouped, disabled=false, default_beautifier=autopep8, beautify_on_save=false, indent_size=2, disabled=false, default_beautifier=formatR, beautify_on_save=false, indent_size=2, indent_char= , wrap_line_length=250, preserve_newlines=true, disabled=false, default_beautifier=Pretty Diff, beautify_on_save=false, indent_size=2, indent_char= , rubocop_path=, disabled=false, default_beautifier=Rubocop, beautify_on_save=false, rustfmt_path=, disabled=false, default_beautifier=rustfmt, beautify_on_save=false, disabled=false, default_beautifier=SassConvert, beautify_on_save=false, beautify_on_save=true, newline_between_rules=true, preserve_newlines=true, indent_size=2, indent_char= , wrap_line_length=0, indent_comments=true, force_indentation=false, convert_quotes=none, align_assignments=false, no_lead_zero=false, configPath=, predefinedConfig=csscomb, disabled=false, default_beautifier=Pretty Diff, beautify_on_save=true, indent_size=2, indent_char= , wrap_line_length=250, preserve_newlines=true, disabled=false, default_beautifier=Pretty Diff, indent_size=2, keywords=upper, identifiers=unchanged, disabled=false, default_beautifier=sqlformat, beautify_on_save=false, beautify_on_save=true, indent_size=2, indent_char= , wrap_line_length=250, preserve_newlines=true, disabled=false, default_beautifier=Pretty Diff, indent_size=2, indent_char= , wrap_line_length=250, preserve_newlines=true, disabled=false, default_beautifier=Pretty Diff, beautify_on_save=false, indent_size=2, indent_char= , newline_between_rules=true, preserve_newlines=false, wrap_line_length=0, indent_comments=true, force_indentation=false, convert_quotes=none, align_assignments=false, no_lead_zero=false, disabled=false, default_beautifier=Pretty Diff, beautify_on_save=false, indent_size=2, indent_char= , indent_with_tabs=false, preserve_newlines=true, space_in_paren=false, space_after_anon_function=false, break_chained_methods=false, wrap_line_length=250, end_with_comma=false, disabled=false, default_beautifier=Pretty Diff, beautify_on_save=false, indent_size=2, indent_char= , indent_level=0, indent_with_tabs=false, preserve_newlines=true, max_preserve_newlines=10, space_in_paren=false, jslint_happy=false, space_after_anon_function=false, brace_style=collapse, break_chained_methods=false, keep_array_indentation=false, keep_function_indentation=false, space_before_conditional=true, eval_code=false, unescape_strings=false, wrap_line_length=0, end_with_newline=false, end_with_comma=false, end_of_line=System Default, disabled=false, default_beautifier=TypeScript Formatter, beautify_on_save=false, indent_size=2, indent_char= , wrap_line_length=250, preserve_newlines=true, disabled=false, default_beautifier=Pretty Diff, beautify_on_save=false, configPath=, disabled=false, default_beautifier=Uncrustify, beautify_on_save=false, indent_size=2, indent_char= , indent_level=0, indent_with_tabs=false, preserve_newlines=true, max_preserve_newlines=10, space_in_paren=false, jslint_happy=false, space_after_anon_function=false, brace_style=collapse, break_chained_methods=false, keep_array_indentation=false, keep_function_indentation=false, space_before_conditional=true, eval_code=false, unescape_strings=false, wrap_line_length=250, end_with_newline=false, end_with_comma=false, end_of_line=System Default, indent_inner_html=false, indent_scripts=normal, wrap_attributes=auto, wrap_attributes_indent_size=2, unformatted=[a, abbr, area, audio, b, bdi, bdo, br, button, canvas, cite, code, data, datalist, del, dfn, em, embed, i, iframe, img, input, ins, kbd, keygen, label, map, mark, math, meter, noscript, object, output, progress, q, ruby, s, samp, select, small, span, strong, sub, sup, svg, template, textarea, time, u, var, video, wbr, text, acronym, address, big, dt, ins, small, strike, tt, pre, h1, h2, h3, h4, h5, h6], extra_liners=[head, body, /html], disabled=false, default_beautifier=Vue Beautifier, beautify_on_save=false, indent_size=2, indent_char= , wrap_line_length=250, preserve_newlines=true, disabled=false, default_beautifier=Pretty Diff, beautify_on_save=false, beautify_on_save=true, indent_inner_html=false, indent_size=2, indent_char= , brace_style=collapse, indent_scripts=normal, wrap_line_length=250, wrap_attributes=auto, wrap_attributes_indent_size=2, preserve_newlines=true, max_preserve_newlines=10, unformatted=[a, abbr, area, audio, b, bdi, bdo, br, button, canvas, cite, code, data, datalist, del, dfn, em, embed, i, iframe, img, input, ins, kbd, keygen, label, map, mark, math, meter, noscript, object, output, progress, q, ruby, s, samp, select, small, span, strong, sub, sup, svg, template, textarea, time, u, var, video, wbr, text, acronym, address, big, dt, ins, small, strike, tt, pre, h1, h2, h3, h4, h5, h6], end_with_newline=false, extra_liners=[head, body, /html], disabled=false, default_beautifier=Pretty Diff, indent_size=2, indent_char= , wrap_line_length=250, preserve_newlines=true, disabled=false, default_beautifier=Pretty Diff, beautify_on_save=false, padding=0, disabled=false, default_beautifier=align-yaml, beautify_on_save=false, , indent_style=space, indent_size=2, end_of_line=lf, charset=utf-8, trim_trailing_whitespace=true, insert_final_newline=true, tab_width=2, indent_char= , , , , , , , preserve_ternary_lines=true, formatObject=true, preserve_ternary_lines=true, , ,
2017-08-01T12:52:28.715Z - verbose: [beautifiers/index.coffee] beautifiers 0=JS Beautify, 1=Pretty Diff
2017-08-01T12:52:28.715Z - verbose: [beautifiers/index.coffee] beautifier Pretty Diff
2017-08-01T12:52:28.715Z - debug: [beautifiers/beautifier.coffee] Load executables
2017-08-01T12:52:28.715Z - info: [beautifiers/index.coffee] Analytics is disabled.
2017-08-01T12:52:28.715Z - info: [beautifiers/index.coffee] Analytics is disabled.
2017-08-01T12:52:28.715Z - verbose: [beautifiers/index.coffee] executables
2017-08-01T12:52:28.715Z - verbose: [beautifiers/beautifier.coffee] prettydiff inchar= , insize=2, objsort=false, preserve=all, cssinsertlines=undefined, comments=indent, force=undefined, quoteConvert=undefined, vertical=none, wrap=0, space=false, noleadzero=undefined, endcomma=false, methodchain=true, ternaryline=true, bracepadding=false, crlf=false, source=/*
* 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.
*/
/* More information about these options at jshint.com/docs/options */
/* jshint browser: true, camelcase: true, curly: true, devel: true,
eqeqeq: true, forin: false, globalstrict: true, node: true,
quotmark: single, undef: true, unused: strict */
/* global mozRTCIceCandidate, mozRTCPeerConnection, Promise,
mozRTCSessionDescription, webkitRTCPeerConnection, MediaStreamTrack,
MediaStream, RTCIceGatherer, RTCIceTransport, RTCDtlsTransport,
RTCRtpSender, RTCRtpReceiver*/
/* exported trace,requestUserMedia */
'use strict';
app.livesession.adapterJS = _.bind(function() {
// app.log('adding adapter.js');
var getUserMedia = null;
var attachMediaStream = null;
var reattachMediaStream = null;
var webrtcDetectedBrowser = null;
var webrtcDetectedVersion = null;
var webrtcMinimumVersion = null;
var webrtcUtils = {
log: function() {
// suppress console.log output when being included as a module.
if (typeof module !== 'undefined' ||
typeof require === 'function' && typeof define === 'function') {
return;
}
console.log.apply(console, arguments);
},
extractVersion: function(uastring, expr, pos) {
var match = uastring.match(expr);
return match && match.length >= pos && parseInt(match[pos], 10);
}
};
function trace(text) {
// This function is used for logging.
if (text[text.length - 1] === '\n') {
text = text.substring(0, text.length - 1);
}
if (window.performance) {
var now = (window.performance.now() / 1000).toFixed(3);
webrtcUtils.log(now + ': ' + text);
} else {
webrtcUtils.log(text);
}
}
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() {
// If prefixed srcObject property exists, return it.
// Otherwise use the shimmed property, _srcObject
return 'mozSrcObject' in this ? this.mozSrcObject : this._srcObject;
},
set: function(stream) {
if ('mozSrcObject' in this) {
this.mozSrcObject = stream;
} else {
// Use _srcObject as a private property for this shim
this._srcObject = stream;
// TODO: revokeObjectUrl(this.src) when !stream to release resources?
this.src = URL.createObjectURL(stream);
}
}
});
}
// Proxy existing globals
getUserMedia = window.navigator && window.navigator.getUserMedia;
}
// Attach a media stream to an element.
attachMediaStream = function(element, stream) {
element.srcObject = stream;
};
reattachMediaStream = function(to, from) {
to.srcObject = from.srcObject;
};
if (typeof window === 'undefined' || !window.navigator) {
webrtcUtils.log('This does not appear to be a browser');
webrtcDetectedBrowser = 'not a browser';
} else if (navigator.mozGetUserMedia) {
webrtcUtils.log('This appears to be Firefox');
webrtcDetectedBrowser = 'firefox';
// the detected firefox version.
webrtcDetectedVersion = webrtcUtils.extractVersion(navigator.userAgent,
/Firefox\/([0-9]+)\./, 1);
// the minimum firefox version still supported by adapter.
webrtcMinimumVersion = 31;
// Shim for RTCPeerConnection on older versions.
if (!window.RTCPeerConnection) {
window.RTCPeerConnection = function(pcConfig, pcConstraints) {
if (webrtcDetectedVersion < 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); // jscs:ignore requireCapitalizedConstructors
};
// wrap static methods. Currently just generateCertificate.
if (mozRTCPeerConnection.generateCertificate) {
Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
get: function() {
if (arguments.length) {
return mozRTCPeerConnection.generateCertificate.apply(null,
arguments);
} else {
return mozRTCPeerConnection.generateCertificate;
}
}
});
}
window.RTCSessionDescription = mozRTCSessionDescription;
window.RTCIceCandidate = mozRTCIceCandidate;
}
// getUserMedia constraints shim.
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;
};
if (webrtcDetectedVersion < 38) {
webrtcUtils.log('spec: ' + JSON.stringify(constraints));
if (constraints.audio) {
constraints.audio = constraintsToFF37(constraints.audio);
}
if (constraints.video) {
constraints.video = constraintsToFF37(constraints.video);
}
webrtcUtils.log('ff37: ' + JSON.stringify(constraints));
}
return navigator.mozGetUserMedia(constraints, onSuccess, onError);
};
navigator.getUserMedia = getUserMedia;
// Shim for mediaDevices on older versions.
if (!navigator.mediaDevices) {
navigator.mediaDevices = {
getUserMedia: requestUserMedia,
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 (webrtcDetectedVersion < 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;
});
};
}
} else if (navigator.webkitGetUserMedia && window.webkitRTCPeerConnection) {
webrtcUtils.log('This appears to be Chrome');
webrtcDetectedBrowser = 'chrome';
// the detected chrome version.
webrtcDetectedVersion = webrtcUtils.extractVersion(navigator.userAgent,
/Chrom(e|ium)\/([0-9]+)\./, 2);
// the minimum chrome version still supported by adapter.
webrtcMinimumVersion = 38;
// The RTCPeerConnection object.
window.RTCPeerConnection = function(pcConfig, pcConstraints) {
// Translate iceTransportPolicy to iceTransports,
// see https://code.google.com/p/webrtc/issues/detail?id=4869
if (pcConfig && pcConfig.iceTransportPolicy) {
pcConfig.iceTransports = pcConfig.iceTransportPolicy;
}
var pc = new webkitRTCPeerConnection(pcConfig, pcConstraints); // jscs:ignore requireCapitalizedConstructors
var origGetStats = pc.getStats.bind(pc);
pc.getStats = function(selector, successCallback, errorCallback) { // jshint ignore: line
var self = this;
var args = arguments;
// If selector is a function then we are in the old style stats so just
// pass back the original getStats format to avoid breaking old users.
if (arguments.length > 0 && typeof selector === 'function') {
return origGetStats(selector, successCallback);
}
var fixChromeStats = function(response) {
var standardReport = {};
var reports = response.result();
reports.forEach(function(report) {
var standardStats = {
id: report.id,
timestamp: report.timestamp,
type: report.type
};
report.names().forEach(function(name) {
standardStats[name] = report.stat(name);
});
standardReport[standardStats.id] = standardStats;
});
return standardReport;
};
if (arguments.length >= 2) {
var successCallbackWrapper = function(response) {
args[1](fixChromeStats(response));
};
return origGetStats.apply(this, [successCallbackWrapper, arguments[0]]);
}
// promise-support
return new Promise(function(resolve, reject) {
if (args.length === 1 && selector === null) {
origGetStats.apply(self, [
function(response) {
resolve.apply(null, [fixChromeStats(response)]);
},
reject
]);
} else {
origGetStats.apply(self, [resolve, reject]);
}
});
};
return pc;
};
// wrap static methods. Currently just generateCertificate.
if (webkitRTCPeerConnection.generateCertificate) {
Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
get: function() {
if (arguments.length) {
return webkitRTCPeerConnection.generateCertificate.apply(null,
arguments);
} else {
return webkitRTCPeerConnection.generateCertificate;
}
}
});
}
// add promise support
['createOffer', 'createAnswer'].forEach(function(method) {
var nativeMethod = webkitRTCPeerConnection.prototype[method];
webkitRTCPeerConnection.prototype[method] = function() {
var self = this;
if (arguments.length < 1 || (arguments.length === 1 &&
typeof(arguments[0]) === 'object')) {
var opts = arguments.length === 1 ? arguments[0] : undefined;
return new Promise(function(resolve, reject) {
nativeMethod.apply(self, [resolve, reject, opts]);
});
} else {
return nativeMethod.apply(this, arguments);
}
};
});
['setLocalDescription', 'setRemoteDescription',
'addIceCandidate'
].forEach(function(method) {
var nativeMethod = webkitRTCPeerConnection.prototype[method];
webkitRTCPeerConnection.prototype[method] = function() {
var args = arguments;
var self = this;
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]);
}
}
]);
});
};
});
// getUserMedia constraints shim.
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;
};
getUserMedia = function(constraints, onSuccess, onError) {
if (constraints.audio) {
constraints.audio = constraintsToChrome(constraints.audio);
}
if (constraints.video) {
constraints.video = constraintsToChrome(constraints.video);
}
webrtcUtils.log('chrome: ' + JSON.stringify(constraints));
return navigator.webkitGetUserMedia(constraints, onSuccess, onError);
};
navigator.getUserMedia = getUserMedia;
if (!navigator.mediaDevices) {
navigator.mediaDevices = {
getUserMedia: requestUserMedia,
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 requestUserMedia(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) {
webrtcUtils.log('spec: ' + JSON.stringify(c)); // whitespace for alignment
c.audio = constraintsToChrome(c.audio);
c.video = constraintsToChrome(c.video);
webrtcUtils.log('chrome: ' + JSON.stringify(c));
return origGetUserMedia(c);
};
}
// Dummy devicechange event methods.
// TODO(KaptenJansson) remove once implemented in Chrome stable.
if (typeof navigator.mediaDevices.addEventListener === 'undefined') {
navigator.mediaDevices.addEventListener = function() {
webrtcUtils.log('Dummy mediaDevices.addEventListener called.');
};
}
if (typeof navigator.mediaDevices.removeEventListener === 'undefined') {
navigator.mediaDevices.removeEventListener = function() {
webrtcUtils.log('Dummy mediaDevices.removeEventListener called.');
};
}
// Attach a media stream to an element.
attachMediaStream = function(element, stream) {
if (webrtcDetectedVersion >= 43) {
element.srcObject = stream;
} else if (typeof element.src !== 'undefined') {
element.src = URL.createObjectURL(stream);
} else {
webrtcUtils.log('Error attaching stream to element.');
}
};
reattachMediaStream = function(to, from) {
if (webrtcDetectedVersion >= 43) {
to.srcObject = from.srcObject;
} else {
to.src = from.src;
}
};
} else if (navigator.mediaDevices && navigator.userAgent.match(
/Edge\/(\d+).(\d+)$/)) {
webrtcUtils.log('This appears to be Edge');
webrtcDetectedBrowser = 'edge';
webrtcDetectedVersion = webrtcUtils.extractVersion(navigator.userAgent,
/Edge\/(\d+).(\d+)$/, 2);
// The minimum version still supported by adapter.
// This is the build number for Edge.
webrtcMinimumVersion = 10547;
if (window.RTCIceGatherer) {
// Generate an alphanumeric identifier for cname or mids.
// TODO: use UUIDs instead? https://gist.github.com/jed/982883
var generateIdentifier = function() {
return Math.random().toString(36).substr(2, 10);
};
// The RTCP CNAME used by all peerconnections from the same JS.
var localCName = generateIdentifier();
// SDP helpers - to be moved into separate module.
var SDPUtils = {};
// 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('\r\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
parsed.numChannels = parts.length === 3 ? parseInt(parts[2], 10) : 1; // was: channels
return parsed;
};
// Generate an a=rtpmap line from RTCRtpCodecCapability or RTCRtpCodecParameters.
SDPUtils.writeRtpMap = function(codec) {
var pt = codec.payloadType;
if (codec.preferredPayloadType !== undefined) {
pt = codec.preferredPayloadType;
}
return 'a=rtpmap:' + pt + ' ' + codec.name + '/' + codec.clockRate +
(codec.numChannels !== 1 ? '/' + codec.numChannels : '') + '\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.writeFtmp = function(codec) {
var line = '';
var pt = codec.payloadType;
if (codec.preferredPayloadType !== undefined) {
pt = codec.preferredPayloadType;
}
if (codec.parameters && 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: line.substr(7, sp - 7),
};
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);
lines = lines.concat(SDPUtils.splitLines(sessionpart)); // Search in session part, too.
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);
lines = lines.concat(SDPUtils.splitLines(sessionpart)); // Search in session part, too.
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);
}
}
// FIXME: parse headerExtensions, fecMechanisms and 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.writeFtmp(codec);
sdp += SDPUtils.writeRtcpFb(codec);
});
// FIXME: add headerExtensions, fecMechanismş and rtcp.
sdp += 'a=rtcp-mux\r\n';
return sdp;
};
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.sendSsrc + ' ' + msid;
}
// FIXME: this should be written by writeRtpDescription.
sdp += 'a=ssrc:' + transceiver.sendSsrc + ' cname:' +
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);
}
}
if (sessionpart) {
return SDPUtils.getDirection(sessionpart);
}
return 'sendrecv';
};
// 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;
this.onicecandidate = null;
this.onaddstream = 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.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');
}
}
if (config && config.iceServers) {
// Edge does not like
// 1) stun:
// 2) turn: that does not have all of turn:host:port?transport=udp
// 3) an array of urls
config.iceServers.forEach(function(server) {
if (server.urls) {
var url;
if (typeof(server.urls) === 'string') {
url = server.urls;
} else {
url = server.urls[0];
}
if (url.indexOf('transport=udp') !== -1) {
self.iceServers.push({
username: server.username,
credential: server.credential,
urls: url
});
}
}
});
}
// 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;
// FIXME: need to apply ice candidates in a way which is async but in-order
this._localIceCandidatesBuffer.forEach(function(event) {
if (self.onicecandidate !== null) {
self.onicecandidate(event);
}
});
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 = {};
event.candidate = {
sdpMid: mid,
sdpMLineIndex: sdpMLineIndex
};
var cand = evt.candidate;
// Edge emits an empty object for RTCIceCandidateComplete‥
if (!cand || Object.keys(cand).length === 0) {
// 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';
});
// FIXME: update .localDescription with candidate and (potentially) end-of-candidates.
// To make this harder, the gatherer might emit candidates before localdescription
// is set. To make things worse, gather.getLocalCandidates still errors in
// Edge 10547 when no candidates have been gathered yet.
if (self.onicecandidate !== null) {
// Emit candidate if localDescription is set.
// Also emits null candidate when all gatherers are complete.
if (self.localDescription && self.localDescription.type === '') {
self._localIceCandidatesBuffer.push(event);
if (complete) {
self._localIceCandidatesBuffer.push({});
}
} else {
self.onicecandidate(event);
if (complete) {
self.onicecandidate({});
}
}
}
};
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 = [{
ssrc: transceiver.sendSsrc
}];
params.rtcp = {
cname: localCName,
ssrc: transceiver.recvSsrc
};
transceiver.rtpSender.send(params);
}
if (recv && transceiver.rtpReceiver) {
params.encodings = [{
ssrc: transceiver.recvSsrc
}];
params.rtcp = {
cname: transceiver.cname,
ssrc: transceiver.sendSsrc
};
transceiver.rtpReceiver.receive(params);
}
};
window.RTCPeerConnection.prototype.setLocalDescription =
function(description) {
var self = this;
if (description.type === 'offer') {
if (!this._pendingOffer) {} else {
this.transceivers = this._pendingOffer;
delete this._pendingOffer;
}
} else if (description.type === 'answer') {
var sections = SDPUtils.splitSections(self.remoteDescription.sdp);
var 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 = description;
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();
self._emitBufferedCandidates();
}, 0);
}
var p = Promise.resolve();
p.then(function() {
if (!hasCallback) {
window.setTimeout(self._emitBufferedCandidates.bind(self), 0);
}
});
return p;
};
window.RTCPeerConnection.prototype.setRemoteDescription =
function(description) {
var self = this;
var stream = new MediaStream();
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 sendSsrc;
var recvSsrc;
var localCapabilities;
// 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);
}
var mid = SDPUtils.matchPrefix(mediaSection, 'a=mid:')[0].substr(6);
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) {
recvSsrc = parseInt(remoteSsrc.ssrc, 10);
cname = remoteSsrc.value;
}
if (description.type === 'offer') {
var transports = self._createIceAndDtlsTransports(mid, sdpMLineIndex);
localCapabilities = RTCRtpReceiver.getCapabilities(kind);
sendSsrc = (2 * sdpMLineIndex + 2) * 1001;
rtpReceiver = new RTCRtpReceiver(transports.dtlsTransport, kind);
// FIXME: not correct when there are multiple streams but that is
// not currently supported in this shim.
stream.addTrack(rtpReceiver.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,
sendSsrc: sendSsrc,
recvSsrc: recvSsrc
};
// 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;
sendSsrc = transceiver.sendSsrc;
//recvSsrc = transceiver.recvSsrc;
localCapabilities = transceiver.localCapabilities;
self.transceivers[sdpMLineIndex].recvSsrc = recvSsrc;
self.transceivers[sdpMLineIndex].remoteCapabilities =
remoteCapabilities;
self.transceivers[sdpMLineIndex].cname = cname;
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')) {
stream.addTrack(rtpReceiver.track);
} else {
// FIXME: actually the receiver should be created later.
delete transceiver.rtpReceiver;
}
}
});
this.remoteDescription = description;
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 + '"');
}
window.setTimeout(function() {
if (self.onaddstream !== null && stream.getTracks().length) {
self.remoteStreams.push(stream);
window.setTimeout(function() {
self.onaddstream({
stream: stream
});
}, 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;
if (this.onsignalingstatechange !== null) {
this.onsignalingstatechange();
}
};
// Determine whether to fire the negotiationneeded event.
window.RTCPeerConnection.prototype._maybeFireNegotiationNeeded =
function() {
// Fire away (for now).
if (this.onnegotiationneeded !== null) {
this.onnegotiationneeded();
}
};
// 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.connecting > 0 || states.completed > 0) {
newState = 'connected';
}
if (newState !== self.iceConnectionState) {
self.iceConnectionState = newState;
if (this.oniceconnectionstatechange !== null) {
this.oniceconnectionstatechange();
}
}
};
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 = 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 sendSsrc = (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,
sendSsrc: sendSsrc,
recvSsrc: 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 answerOptions;
if (arguments.length === 1 && typeof arguments[0] !== 'function') {
answerOptions = arguments[0];
} else if (arguments.length === 3) {
answerOptions = arguments[2];
}
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);
}
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);
});
});
};
}
} else {
webrtcUtils.log('Browser does not appear to be WebRTC-capable');
}
// Polyfill ontrack on browsers that don't yet have it
if (typeof window === 'object' && !('ontrack' in window.RTCPeerConnection)) {
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));
}
});
}
// Returns the result of getUserMedia as a Promise.
function requestUserMedia(constraints) {
return new Promise(function(resolve, reject) {
getUserMedia(constraints, resolve, reject);
});
}
var webrtcTesting = {};
try {
Object.defineProperty(webrtcTesting, 'version', {
set: function(version) {
webrtcDetectedVersion = version;
}
});
} catch (e) {}
if (typeof module !== 'undefined') {
var RTCPeerConnection;
var RTCIceCandidate;
var RTCSessionDescription;
if (typeof window !== 'undefined') {
RTCPeerConnection = window.RTCPeerConnection;
RTCIceCandidate = window.RTCIceCandidate;
RTCSessionDescription = window.RTCSessionDescription;
}
module.exports = {
RTCPeerConnection: RTCPeerConnection,
RTCIceCandidate: RTCIceCandidate,
RTCSessionDescription: RTCSessionDescription,
getUserMedia: getUserMedia,
attachMediaStream: attachMediaStream,
reattachMediaStream: reattachMediaStream,
webrtcDetectedBrowser: webrtcDetectedBrowser,
webrtcDetectedVersion: webrtcDetectedVersion,
webrtcMinimumVersion: webrtcMinimumVersion,
webrtcTesting: webrtcTesting,
webrtcUtils: webrtcUtils
//requestUserMedia: not exposed on purpose.
//trace: not exposed on purpose.
};
} else if ((typeof require === 'function') && (typeof define === 'function')) {
// Expose objects and functions when RequireJS is doing the loading.
define([], function() {
return {
RTCPeerConnection: window.RTCPeerConnection,
RTCIceCandidate: window.RTCIceCandidate,
RTCSessionDescription: window.RTCSessionDescription,
getUserMedia: getUserMedia,
attachMediaStream: attachMediaStream,
reattachMediaStream: reattachMediaStream,
webrtcDetectedBrowser: webrtcDetectedBrowser,
webrtcDetectedVersion: webrtcDetectedVersion,
webrtcMinimumVersion: webrtcMinimumVersion,
webrtcTesting: webrtcTesting,
webrtcUtils: webrtcUtils
//requestUserMedia: not exposed on purpose.
//trace: not exposed on purpose.
};
});
}
}, this);
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