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webrtc-adapter

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webrtc-adapter - npm Package Compare versions

Comparing version 3.3.1 to 3.3.2

src/js/edge/rtcpeerconnection_shim.js

10

Gruntfile.js

@@ -24,3 +24,3 @@ 'use strict';

},
// Use this if you do not want MS edge shim to be included.
// Use this if you do not want Microsoft Edge shim to be included.
adapterNoEdge: {

@@ -32,4 +32,3 @@ src: ['./src/js/adapter_core.js'],

ignore: [
'./src/js/edge/edge_shim.js',
'./src/js/edge/edge_sdp.js'
'./src/js/edge/edge_shim.js'
],

@@ -42,3 +41,3 @@ browserifyOptions: {

},
// Use this if you do not want MS edge shim to be included and do not
// Use this if you do not want Microsoft Edge shim to be included and do not
// want adapter to expose anything to the global scope.

@@ -50,4 +49,3 @@ adapterNoEdgeAndNoGlobalObject: {

ignore: [
'./src/js/edge/edge_shim.js',
'./src/js/edge/edge_sdp.js'
'./src/js/edge/edge_shim.js'
]

@@ -54,0 +52,0 @@ }

17

out/adapter_no_edge_no_global.js

@@ -532,10 +532,10 @@ (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){

delete constraints.video.facingMode;
var match;
var matches;
if (face.exact === 'environment' || face.ideal === 'environment') {
match = 'back';
matches = ['back', 'rear'];
} else if (face.exact === 'user' || face.ideal === 'user') {
match = 'front';
matches = ['front'];
}
if (match) {
// Look for match in label.
if (matches) {
// Look for matches in label, or use last cam for back (typical).
return navigator.mediaDevices.enumerateDevices()

@@ -547,4 +547,9 @@ .then(function(devices) {

var dev = devices.find(function(d) {
return d.label.toLowerCase().indexOf(match) !== -1;
return matches.some(function(match) {
return d.label.toLowerCase().indexOf(match) !== -1;
});
});
if (!dev && devices.length && matches.indexOf('back') !== -1) {
dev = devices[devices.length - 1]; // more likely the back cam
}
if (dev) {

@@ -551,0 +556,0 @@ constraints.video.deviceId = face.exact ? {exact: dev.deviceId} :

17

out/adapter_no_edge.js

@@ -532,10 +532,10 @@ (function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.adapter = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){

delete constraints.video.facingMode;
var match;
var matches;
if (face.exact === 'environment' || face.ideal === 'environment') {
match = 'back';
matches = ['back', 'rear'];
} else if (face.exact === 'user' || face.ideal === 'user') {
match = 'front';
matches = ['front'];
}
if (match) {
// Look for match in label.
if (matches) {
// Look for matches in label, or use last cam for back (typical).
return navigator.mediaDevices.enumerateDevices()

@@ -547,4 +547,9 @@ .then(function(devices) {

var dev = devices.find(function(d) {
return d.label.toLowerCase().indexOf(match) !== -1;
return matches.some(function(match) {
return d.label.toLowerCase().indexOf(match) !== -1;
});
});
if (!dev && devices.length && matches.indexOf('back') !== -1) {
dev = devices[devices.length - 1]; // more likely the back cam
}
if (dev) {

@@ -551,0 +556,0 @@ constraints.video.deviceId = face.exact ? {exact: dev.deviceId} :

2

package.json
{
"name": "webrtc-adapter",
"version": "3.3.1",
"version": "3.3.2",
"description": "A shim to insulate apps from WebRTC spec changes and browser prefix differences",

@@ -5,0 +5,0 @@ "license": "BSD-3-Clause",

17

src/js/chrome/getusermedia.js

@@ -83,10 +83,10 @@ /*

delete constraints.video.facingMode;
var match;
var matches;
if (face.exact === 'environment' || face.ideal === 'environment') {
match = 'back';
matches = ['back', 'rear'];
} else if (face.exact === 'user' || face.ideal === 'user') {
match = 'front';
matches = ['front'];
}
if (match) {
// Look for match in label.
if (matches) {
// Look for matches in label, or use last cam for back (typical).
return navigator.mediaDevices.enumerateDevices()

@@ -98,4 +98,9 @@ .then(function(devices) {

var dev = devices.find(function(d) {
return d.label.toLowerCase().indexOf(match) !== -1;
return matches.some(function(match) {
return d.label.toLowerCase().indexOf(match) !== -1;
});
});
if (!dev && devices.length && matches.indexOf('back') !== -1) {
dev = devices[devices.length - 1]; // more likely the back cam
}
if (dev) {

@@ -102,0 +107,0 @@ constraints.video.deviceId = face.exact ? {exact: dev.deviceId} :

1281

src/js/edge/edge_shim.js

@@ -11,67 +11,7 @@ /*

var SDPUtils = require('sdp');
var browserDetails = require('../utils').browserDetails;
var shimRTCPeerConnection = require('./rtcpeerconnection_shim');
// sort tracks such that they follow an a-v-a-v...
// pattern.
function sortTracks(tracks) {
var audioTracks = tracks.filter(function(track) {
return track.kind === 'audio';
});
var videoTracks = tracks.filter(function(track) {
return track.kind === 'video';
});
tracks = [];
while (audioTracks.length || videoTracks.length) {
if (audioTracks.length) {
tracks.push(audioTracks.shift());
}
if (videoTracks.length) {
tracks.push(videoTracks.shift());
}
}
return tracks;
}
// Edge does not like
// 1) stun:
// 2) turn: that does not have all of turn:host:port?transport=udp
// 3) turn: with ipv6 addresses
// 4) turn: occurring muliple times
function filterIceServers(iceServers) {
var hasTurn = false;
iceServers = JSON.parse(JSON.stringify(iceServers));
return iceServers.filter(function(server) {
if (server && (server.urls || server.url)) {
var urls = server.urls || server.url;
if (server.url && !server.urls) {
console.warn('RTCIceServer.url is deprecated! Use urls instead.');
}
var isString = typeof urls === 'string';
if (isString) {
urls = [urls];
}
urls = urls.filter(function(url) {
var validTurn = url.indexOf('turn:') === 0 &&
url.indexOf('transport=udp') !== -1 &&
url.indexOf('turn:[') === -1 &&
!hasTurn;
if (validTurn) {
hasTurn = true;
return true;
}
return url.indexOf('stun:') === 0 &&
browserDetails.version >= 14393;
});
delete server.url;
server.urls = isString ? urls[0] : urls;
return !!urls.length;
}
return false;
});
}
var edgeShim = {
module.exports = {
shimGetUserMedia: require('./getusermedia'),
shimPeerConnection: function() {

@@ -110,1209 +50,3 @@ if (window.RTCIceGatherer) {

}
window.RTCPeerConnection = function(config) {
var self = this;
var _eventTarget = document.createDocumentFragment();
['addEventListener', 'removeEventListener', 'dispatchEvent']
.forEach(function(method) {
self[method] = _eventTarget[method].bind(_eventTarget);
});
this.onicecandidate = null;
this.onaddstream = null;
this.ontrack = null;
this.onremovestream = null;
this.onsignalingstatechange = null;
this.oniceconnectionstatechange = null;
this.onicegatheringstatechange = null;
this.onnegotiationneeded = null;
this.ondatachannel = null;
this.canTrickleIceCandidates = null;
this.localStreams = [];
this.remoteStreams = [];
this.getLocalStreams = function() {
return self.localStreams;
};
this.getRemoteStreams = function() {
return self.remoteStreams;
};
this.localDescription = new RTCSessionDescription({
type: '',
sdp: ''
});
this.remoteDescription = new RTCSessionDescription({
type: '',
sdp: ''
});
this.signalingState = 'stable';
this.iceConnectionState = 'new';
this.iceGatheringState = 'new';
this.iceOptions = {
gatherPolicy: 'all',
iceServers: []
};
if (config && config.iceTransportPolicy) {
switch (config.iceTransportPolicy) {
case 'all':
case 'relay':
this.iceOptions.gatherPolicy = config.iceTransportPolicy;
break;
default:
// don't set iceTransportPolicy.
break;
}
}
this.usingBundle = config && config.bundlePolicy === 'max-bundle';
if (config && config.iceServers) {
this.iceOptions.iceServers = filterIceServers(config.iceServers);
}
this._config = config || {};
// 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._emitGatheringStateChange = function() {
var event = new Event('icegatheringstatechange');
this.dispatchEvent(event);
if (this.onicegatheringstatechange !== null) {
this.onicegatheringstatechange(event);
}
};
window.RTCPeerConnection.prototype._emitBufferedCandidates = function() {
var self = this;
var sections = SDPUtils.splitSections(self.localDescription.sdp);
// FIXME: need to apply ice candidates in a way which is async but
// in-order
this._localIceCandidatesBuffer.forEach(function(event) {
var end = !event.candidate || Object.keys(event.candidate).length === 0;
if (end) {
for (var j = 1; j < sections.length; j++) {
if (sections[j].indexOf('\r\na=end-of-candidates\r\n') === -1) {
sections[j] += 'a=end-of-candidates\r\n';
}
}
} else {
sections[event.candidate.sdpMLineIndex + 1] +=
'a=' + event.candidate.candidate + '\r\n';
}
self.localDescription.sdp = sections.join('');
self.dispatchEvent(event);
if (self.onicecandidate !== null) {
self.onicecandidate(event);
}
if (!event.candidate && self.iceGatheringState !== 'complete') {
var complete = self.transceivers.every(function(transceiver) {
return transceiver.iceGatherer &&
transceiver.iceGatherer.state === 'completed';
});
if (complete && self.iceGatheringStateChange !== 'complete') {
self.iceGatheringState = 'complete';
self._emitGatheringStateChange();
}
}
});
this._localIceCandidatesBuffer = [];
};
window.RTCPeerConnection.prototype.getConfiguration = function() {
return this._config;
};
window.RTCPeerConnection.prototype.addStream = function(stream) {
if (browserDetails.version >= 15025) {
this.localStreams.push(stream);
} else {
// Clone is necessary for local demos mostly, attaching directly
// to two different senders does not work (build 10547).
// Fixed in 15025 (or earlier)
var clonedStream = stream.clone();
stream.getTracks().forEach(function(track, idx) {
var clonedTrack = clonedStream.getTracks()[idx];
track.addEventListener('enabled', function(event) {
clonedTrack.enabled = event.enabled;
});
});
this.localStreams.push(clonedStream);
}
this._maybeFireNegotiationNeeded();
};
window.RTCPeerConnection.prototype.removeStream = function(stream) {
var idx = this.localStreams.indexOf(stream);
if (idx > -1) {
this.localStreams.splice(idx, 1);
this._maybeFireNegotiationNeeded();
}
};
window.RTCPeerConnection.prototype.getSenders = function() {
return this.transceivers.filter(function(transceiver) {
return !!transceiver.rtpSender;
})
.map(function(transceiver) {
return transceiver.rtpSender;
});
};
window.RTCPeerConnection.prototype.getReceivers = function() {
return this.transceivers.filter(function(transceiver) {
return !!transceiver.rtpReceiver;
})
.map(function(transceiver) {
return transceiver.rtpReceiver;
});
};
// Determines the intersection of local and remote capabilities.
window.RTCPeerConnection.prototype._getCommonCapabilities =
function(localCapabilities, remoteCapabilities) {
var commonCapabilities = {
codecs: [],
headerExtensions: [],
fecMechanisms: []
};
var findCodecByPayloadType = function(pt, codecs) {
pt = parseInt(pt, 10);
for (var i = 0; i < codecs.length; i++) {
if (codecs[i].payloadType === pt ||
codecs[i].preferredPayloadType === pt) {
return codecs[i];
}
}
};
var rtxCapabilityMatches = function(lRtx, rRtx, lCodecs, rCodecs) {
var lCodec = findCodecByPayloadType(lRtx.parameters.apt, lCodecs);
var rCodec = findCodecByPayloadType(rRtx.parameters.apt, rCodecs);
return lCodec && rCodec &&
lCodec.name.toLowerCase() === rCodec.name.toLowerCase();
};
localCapabilities.codecs.forEach(function(lCodec) {
for (var i = 0; i < remoteCapabilities.codecs.length; i++) {
var rCodec = remoteCapabilities.codecs[i];
if (lCodec.name.toLowerCase() === rCodec.name.toLowerCase() &&
lCodec.clockRate === rCodec.clockRate) {
if (lCodec.name.toLowerCase() === 'rtx' &&
lCodec.parameters && rCodec.parameters.apt) {
// for RTX we need to find the local rtx that has a apt
// which points to the same local codec as the remote one.
if (!rtxCapabilityMatches(lCodec, rCodec,
localCapabilities.codecs, remoteCapabilities.codecs)) {
continue;
}
}
rCodec = JSON.parse(JSON.stringify(rCodec)); // deepcopy
// number of channels is the highest common number of channels
rCodec.numChannels = Math.min(lCodec.numChannels,
rCodec.numChannels);
// push rCodec so we reply with offerer payload type
commonCapabilities.codecs.push(rCodec);
// determine common feedback mechanisms
rCodec.rtcpFeedback = rCodec.rtcpFeedback.filter(function(fb) {
for (var j = 0; j < lCodec.rtcpFeedback.length; j++) {
if (lCodec.rtcpFeedback[j].type === fb.type &&
lCodec.rtcpFeedback[j].parameter === fb.parameter) {
return true;
}
}
return false;
});
// FIXME: also need to determine .parameters
// see https://github.com/openpeer/ortc/issues/569
break;
}
}
});
localCapabilities.headerExtensions
.forEach(function(lHeaderExtension) {
for (var i = 0; i < remoteCapabilities.headerExtensions.length;
i++) {
var rHeaderExtension = remoteCapabilities.headerExtensions[i];
if (lHeaderExtension.uri === rHeaderExtension.uri) {
commonCapabilities.headerExtensions.push(rHeaderExtension);
break;
}
}
});
// FIXME: fecMechanisms
return commonCapabilities;
};
// Create ICE gatherer, ICE transport and DTLS transport.
window.RTCPeerConnection.prototype._createIceAndDtlsTransports =
function(mid, sdpMLineIndex) {
var self = this;
var iceGatherer = new RTCIceGatherer(self.iceOptions);
var iceTransport = new RTCIceTransport(iceGatherer);
iceGatherer.onlocalcandidate = function(evt) {
var event = new Event('icecandidate');
event.candidate = {sdpMid: mid, sdpMLineIndex: sdpMLineIndex};
var cand = evt.candidate;
var end = !cand || Object.keys(cand).length === 0;
// Edge emits an empty object for RTCIceCandidateComplete‥
if (end) {
// polyfill since RTCIceGatherer.state is not implemented in
// Edge 10547 yet.
if (iceGatherer.state === undefined) {
iceGatherer.state = 'completed';
}
} else {
// RTCIceCandidate doesn't have a component, needs to be added
cand.component = iceTransport.component === 'RTCP' ? 2 : 1;
event.candidate.candidate = SDPUtils.writeCandidate(cand);
}
// update local description.
var sections = SDPUtils.splitSections(self.localDescription.sdp);
if (!end) {
sections[event.candidate.sdpMLineIndex + 1] +=
'a=' + event.candidate.candidate + '\r\n';
} else {
sections[event.candidate.sdpMLineIndex + 1] +=
'a=end-of-candidates\r\n';
}
self.localDescription.sdp = sections.join('');
var transceivers = self._pendingOffer ? self._pendingOffer :
self.transceivers;
var complete = transceivers.every(function(transceiver) {
return transceiver.iceGatherer &&
transceiver.iceGatherer.state === 'completed';
});
// Emit candidate if localDescription is set.
// Also emits null candidate when all gatherers are complete.
switch (self.iceGatheringState) {
case 'new':
if (!end) {
self._localIceCandidatesBuffer.push(event);
}
if (end && complete) {
self._localIceCandidatesBuffer.push(
new Event('icecandidate'));
}
break;
case 'gathering':
self._emitBufferedCandidates();
if (!end) {
self.dispatchEvent(event);
if (self.onicecandidate !== null) {
self.onicecandidate(event);
}
}
if (complete) {
self.dispatchEvent(new Event('icecandidate'));
if (self.onicecandidate !== null) {
self.onicecandidate(new Event('icecandidate'));
}
self.iceGatheringState = 'complete';
self._emitGatheringStateChange();
}
break;
case 'complete':
// should not happen... currently!
break;
default: // no-op.
break;
}
};
iceTransport.onicestatechange = function() {
self._updateConnectionState();
};
var dtlsTransport = new RTCDtlsTransport(iceTransport);
dtlsTransport.ondtlsstatechange = function() {
self._updateConnectionState();
};
dtlsTransport.onerror = function() {
// onerror does not set state to failed by itself.
dtlsTransport.state = 'failed';
self._updateConnectionState();
};
return {
iceGatherer: iceGatherer,
iceTransport: iceTransport,
dtlsTransport: dtlsTransport
};
};
// Destroy ICE gatherer, ICE transport and DTLS transport.
// Without triggering the callbacks.
window.RTCPeerConnection.prototype._disposeIceAndDtlsTransports =
function(sdpMLineIndex) {
var iceGatherer = this.transceivers[sdpMLineIndex].iceGatherer;
if (iceGatherer) {
delete iceGatherer.onlocalcandidate;
delete this.transceivers[sdpMLineIndex].iceGatherer;
}
var iceTransport = this.transceivers[sdpMLineIndex].iceTransport;
if (iceTransport) {
delete iceTransport.onicestatechange;
delete this.transceivers[sdpMLineIndex].iceTransport;
}
var dtlsTransport = this.transceivers[sdpMLineIndex].dtlsTransport;
if (dtlsTransport) {
delete dtlsTransport.ondtlssttatechange;
delete dtlsTransport.onerror;
delete this.transceivers[sdpMLineIndex].dtlsTransport;
}
};
// Start the RTP Sender and Receiver for a transceiver.
window.RTCPeerConnection.prototype._transceive = function(transceiver,
send, recv) {
var params = this._getCommonCapabilities(transceiver.localCapabilities,
transceiver.remoteCapabilities);
if (send && transceiver.rtpSender) {
params.encodings = transceiver.sendEncodingParameters;
params.rtcp = {
cname: SDPUtils.localCName,
compound: transceiver.rtcpParameters.compound
};
if (transceiver.recvEncodingParameters.length) {
params.rtcp.ssrc = transceiver.recvEncodingParameters[0].ssrc;
}
transceiver.rtpSender.send(params);
}
if (recv && transceiver.rtpReceiver) {
// remove RTX field in Edge 14942
if (transceiver.kind === 'video'
&& transceiver.recvEncodingParameters
&& browserDetails.version < 15019) {
transceiver.recvEncodingParameters.forEach(function(p) {
delete p.rtx;
});
}
params.encodings = transceiver.recvEncodingParameters;
params.rtcp = {
cname: transceiver.rtcpParameters.cname,
compound: transceiver.rtcpParameters.compound
};
if (transceiver.sendEncodingParameters.length) {
params.rtcp.ssrc = transceiver.sendEncodingParameters[0].ssrc;
}
transceiver.rtpReceiver.receive(params);
}
};
window.RTCPeerConnection.prototype.setLocalDescription =
function(description) {
var self = this;
var sections;
var sessionpart;
if (description.type === 'offer') {
// FIXME: What was the purpose of this empty if statement?
// if (!this._pendingOffer) {
// } else {
if (this._pendingOffer) {
// VERY limited support for SDP munging. Limited to:
// * changing the order of codecs
sections = SDPUtils.splitSections(description.sdp);
sessionpart = sections.shift();
sections.forEach(function(mediaSection, sdpMLineIndex) {
var caps = SDPUtils.parseRtpParameters(mediaSection);
self._pendingOffer[sdpMLineIndex].localCapabilities = caps;
});
this.transceivers = this._pendingOffer;
delete this._pendingOffer;
}
} else if (description.type === 'answer') {
sections = SDPUtils.splitSections(self.remoteDescription.sdp);
sessionpart = sections.shift();
var isIceLite = SDPUtils.matchPrefix(sessionpart,
'a=ice-lite').length > 0;
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 && !transceiver.isDatachannel) {
var remoteIceParameters = SDPUtils.getIceParameters(
mediaSection, sessionpart);
var remoteDtlsParameters = SDPUtils.getDtlsParameters(
mediaSection, sessionpart);
if (isIceLite) {
remoteDtlsParameters.role = 'server';
}
if (!self.usingBundle || sdpMLineIndex === 0) {
iceTransport.start(iceGatherer, remoteIceParameters,
isIceLite ? 'controlling' : 'controlled');
dtlsTransport.start(remoteDtlsParameters);
}
// Calculate intersection of capabilities.
var params = self._getCommonCapabilities(localCapabilities,
remoteCapabilities);
// Start the RTCRtpSender. The RTCRtpReceiver for this
// transceiver has already been started in setRemoteDescription.
self._transceive(transceiver,
params.codecs.length > 0,
false);
}
});
}
this.localDescription = {
type: description.type,
sdp: description.sdp
};
switch (description.type) {
case 'offer':
this._updateSignalingState('have-local-offer');
break;
case 'answer':
this._updateSignalingState('stable');
break;
default:
throw new TypeError('unsupported type "' + description.type +
'"');
}
// If a success callback was provided, emit ICE candidates after it
// has been executed. Otherwise, emit callback after the Promise is
// resolved.
var hasCallback = arguments.length > 1 &&
typeof arguments[1] === 'function';
if (hasCallback) {
var cb = arguments[1];
window.setTimeout(function() {
cb();
if (self.iceGatheringState === 'new') {
self.iceGatheringState = 'gathering';
self._emitGatheringStateChange();
}
self._emitBufferedCandidates();
}, 0);
}
var p = Promise.resolve();
p.then(function() {
if (!hasCallback) {
if (self.iceGatheringState === 'new') {
self.iceGatheringState = 'gathering';
self._emitGatheringStateChange();
}
// Usually candidates will be emitted earlier.
window.setTimeout(self._emitBufferedCandidates.bind(self), 500);
}
});
return p;
};
window.RTCPeerConnection.prototype.setRemoteDescription =
function(description) {
var self = this;
var streams = {};
var receiverList = [];
var sections = SDPUtils.splitSections(description.sdp);
var sessionpart = sections.shift();
var isIceLite = SDPUtils.matchPrefix(sessionpart,
'a=ice-lite').length > 0;
var usingBundle = SDPUtils.matchPrefix(sessionpart,
'a=group:BUNDLE ').length > 0;
var iceOptions = SDPUtils.matchPrefix(sessionpart,
'a=ice-options:')[0];
if (iceOptions) {
this.canTrickleIceCandidates = iceOptions.substr(14).split(' ')
.indexOf('trickle') >= 0;
} else {
this.canTrickleIceCandidates = false;
}
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 remoteMsid = SDPUtils.parseMsid(mediaSection);
var mid = SDPUtils.matchPrefix(mediaSection, 'a=mid:');
if (mid.length) {
mid = mid[0].substr(6);
} else {
mid = SDPUtils.generateIdentifier();
}
// Reject datachannels which are not implemented yet.
if (kind === 'application' && mline[2] === 'DTLS/SCTP') {
self.transceivers[sdpMLineIndex] = {
mid: mid,
isDatachannel: true
};
return;
}
var transceiver;
var iceGatherer;
var iceTransport;
var dtlsTransport;
var rtpSender;
var rtpReceiver;
var sendEncodingParameters;
var recvEncodingParameters;
var localCapabilities;
var track;
// FIXME: ensure the mediaSection has rtcp-mux set.
var remoteCapabilities = SDPUtils.parseRtpParameters(mediaSection);
var remoteIceParameters;
var remoteDtlsParameters;
if (!rejected) {
remoteIceParameters = SDPUtils.getIceParameters(mediaSection,
sessionpart);
remoteDtlsParameters = SDPUtils.getDtlsParameters(mediaSection,
sessionpart);
remoteDtlsParameters.role = 'client';
}
recvEncodingParameters =
SDPUtils.parseRtpEncodingParameters(mediaSection);
var rtcpParameters = SDPUtils.parseRtcpParameters(mediaSection);
var isComplete = SDPUtils.matchPrefix(mediaSection,
'a=end-of-candidates', sessionpart).length > 0;
var cands = SDPUtils.matchPrefix(mediaSection, 'a=candidate:')
.map(function(cand) {
return SDPUtils.parseCandidate(cand);
})
.filter(function(cand) {
return cand.component === '1';
});
if (description.type === 'offer' && !rejected) {
var transports = usingBundle && sdpMLineIndex > 0 ? {
iceGatherer: self.transceivers[0].iceGatherer,
iceTransport: self.transceivers[0].iceTransport,
dtlsTransport: self.transceivers[0].dtlsTransport
} : self._createIceAndDtlsTransports(mid, sdpMLineIndex);
if (isComplete && (!usingBundle || sdpMLineIndex === 0)) {
transports.iceTransport.setRemoteCandidates(cands);
}
localCapabilities = RTCRtpReceiver.getCapabilities(kind);
// filter RTX until additional stuff needed for RTX is implemented
// in adapter.js
if (browserDetails.version < 15019) {
localCapabilities.codecs = localCapabilities.codecs.filter(
function(codec) {
return codec.name !== 'rtx';
});
}
sendEncodingParameters = [{
ssrc: (2 * sdpMLineIndex + 2) * 1001
}];
if (direction === 'sendrecv' || direction === 'sendonly') {
rtpReceiver = new RTCRtpReceiver(transports.dtlsTransport,
kind);
track = rtpReceiver.track;
// FIXME: does not work with Plan B.
if (remoteMsid) {
if (!streams[remoteMsid.stream]) {
streams[remoteMsid.stream] = new MediaStream();
Object.defineProperty(streams[remoteMsid.stream], 'id', {
get: function() {
return remoteMsid.stream;
}
});
}
Object.defineProperty(track, 'id', {
get: function() {
return remoteMsid.track;
}
});
streams[remoteMsid.stream].addTrack(track);
receiverList.push([track, rtpReceiver,
streams[remoteMsid.stream]]);
} else {
if (!streams.default) {
streams.default = new MediaStream();
}
streams.default.addTrack(track);
receiverList.push([track, rtpReceiver, streams.default]);
}
}
// FIXME: look at direction.
if (self.localStreams.length > 0 &&
self.localStreams[0].getTracks().length >= sdpMLineIndex) {
var localTrack;
if (kind === 'audio') {
localTrack = self.localStreams[0].getAudioTracks()[0];
} else if (kind === 'video') {
localTrack = self.localStreams[0].getVideoTracks()[0];
}
if (localTrack) {
// add RTX
if (browserDetails.version >= 15019 && kind === 'video') {
sendEncodingParameters[0].rtx = {
ssrc: (2 * sdpMLineIndex + 2) * 1001 + 1
};
}
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,
rtcpParameters: rtcpParameters,
sendEncodingParameters: sendEncodingParameters,
recvEncodingParameters: recvEncodingParameters
};
// Start the RTCRtpReceiver now. The RTPSender is started in
// setLocalDescription.
self._transceive(self.transceivers[sdpMLineIndex],
false,
direction === 'sendrecv' || direction === 'sendonly');
} else if (description.type === 'answer' && !rejected) {
if (usingBundle && sdpMLineIndex > 0) {
self._disposeIceAndDtlsTransports(sdpMLineIndex);
self.transceivers[sdpMLineIndex].iceGatherer =
self.transceivers[0].iceGatherer;
self.transceivers[sdpMLineIndex].iceTransport =
self.transceivers[0].iceTransport;
self.transceivers[sdpMLineIndex].dtlsTransport =
self.transceivers[0].dtlsTransport;
if (self.transceivers[sdpMLineIndex].rtpSender) {
self.transceivers[sdpMLineIndex].rtpSender.setTransport(
self.transceivers[0].dtlsTransport);
}
if (self.transceivers[sdpMLineIndex].rtpReceiver) {
self.transceivers[sdpMLineIndex].rtpReceiver.setTransport(
self.transceivers[0].dtlsTransport);
}
}
transceiver = self.transceivers[sdpMLineIndex];
iceGatherer = transceiver.iceGatherer;
iceTransport = transceiver.iceTransport;
dtlsTransport = transceiver.dtlsTransport;
rtpSender = transceiver.rtpSender;
rtpReceiver = transceiver.rtpReceiver;
sendEncodingParameters = transceiver.sendEncodingParameters;
localCapabilities = transceiver.localCapabilities;
self.transceivers[sdpMLineIndex].recvEncodingParameters =
recvEncodingParameters;
self.transceivers[sdpMLineIndex].remoteCapabilities =
remoteCapabilities;
self.transceivers[sdpMLineIndex].rtcpParameters = rtcpParameters;
if ((isIceLite || isComplete) && cands.length) {
iceTransport.setRemoteCandidates(cands);
}
if (!usingBundle || sdpMLineIndex === 0) {
iceTransport.start(iceGatherer, remoteIceParameters,
'controlling');
dtlsTransport.start(remoteDtlsParameters);
}
self._transceive(transceiver,
direction === 'sendrecv' || direction === 'recvonly',
direction === 'sendrecv' || direction === 'sendonly');
if (rtpReceiver &&
(direction === 'sendrecv' || direction === 'sendonly')) {
track = rtpReceiver.track;
receiverList.push([track, rtpReceiver]);
if (remoteMsid) {
if (!streams[remoteMsid.stream]) {
streams[remoteMsid.stream] = new MediaStream();
}
streams[remoteMsid.stream].addTrack(track);
} else {
if (!streams.default) {
streams.default = new MediaStream();
}
streams.default.addTrack(track);
}
} else {
// FIXME: actually the receiver should be created later.
delete transceiver.rtpReceiver;
}
}
});
this.usingBundle = usingBundle;
this.remoteDescription = {
type: description.type,
sdp: description.sdp
};
switch (description.type) {
case 'offer':
this._updateSignalingState('have-remote-offer');
break;
case 'answer':
this._updateSignalingState('stable');
break;
default:
throw new TypeError('unsupported type "' + description.type +
'"');
}
Object.keys(streams).forEach(function(sid) {
var stream = streams[sid];
if (stream.getTracks().length) {
self.remoteStreams.push(stream);
var event = new Event('addstream');
event.stream = stream;
self.dispatchEvent(event);
if (self.onaddstream !== null) {
window.setTimeout(function() {
self.onaddstream(event);
}, 0);
}
receiverList.forEach(function(item) {
var track = item[0];
var receiver = item[1];
if (stream.id !== item[2].id) {
return;
}
var trackEvent = new Event('track');
trackEvent.track = track;
trackEvent.receiver = receiver;
trackEvent.streams = [stream];
self.dispatchEvent(trackEvent);
if (self.ontrack !== null) {
window.setTimeout(function() {
self.ontrack(trackEvent);
}, 0);
}
});
}
});
if (arguments.length > 1 && typeof arguments[1] === 'function') {
window.setTimeout(arguments[1], 0);
}
return Promise.resolve();
};
window.RTCPeerConnection.prototype.close = function() {
this.transceivers.forEach(function(transceiver) {
/* not yet
if (transceiver.iceGatherer) {
transceiver.iceGatherer.close();
}
*/
if (transceiver.iceTransport) {
transceiver.iceTransport.stop();
}
if (transceiver.dtlsTransport) {
transceiver.dtlsTransport.stop();
}
if (transceiver.rtpSender) {
transceiver.rtpSender.stop();
}
if (transceiver.rtpReceiver) {
transceiver.rtpReceiver.stop();
}
});
// FIXME: clean up tracks, local streams, remote streams, etc
this._updateSignalingState('closed');
};
// Update the signaling state.
window.RTCPeerConnection.prototype._updateSignalingState =
function(newState) {
this.signalingState = newState;
var event = new Event('signalingstatechange');
this.dispatchEvent(event);
if (this.onsignalingstatechange !== null) {
this.onsignalingstatechange(event);
}
};
// Determine whether to fire the negotiationneeded event.
window.RTCPeerConnection.prototype._maybeFireNegotiationNeeded =
function() {
// Fire away (for now).
var event = new Event('negotiationneeded');
this.dispatchEvent(event);
if (this.onnegotiationneeded !== null) {
this.onnegotiationneeded(event);
}
};
// Update the connection state.
window.RTCPeerConnection.prototype._updateConnectionState = function() {
var self = this;
var newState;
var states = {
'new': 0,
closed: 0,
connecting: 0,
checking: 0,
connected: 0,
completed: 0,
failed: 0
};
this.transceivers.forEach(function(transceiver) {
states[transceiver.iceTransport.state]++;
states[transceiver.dtlsTransport.state]++;
});
// ICETransport.completed and connected are the same for this purpose.
states.connected += states.completed;
newState = 'new';
if (states.failed > 0) {
newState = 'failed';
} else if (states.connecting > 0 || states.checking > 0) {
newState = 'connecting';
} else if (states.disconnected > 0) {
newState = 'disconnected';
} else if (states.new > 0) {
newState = 'new';
} else if (states.connected > 0 || states.completed > 0) {
newState = 'connected';
}
if (newState !== self.iceConnectionState) {
self.iceConnectionState = newState;
var event = new Event('iceconnectionstatechange');
this.dispatchEvent(event);
if (this.oniceconnectionstatechange !== null) {
this.oniceconnectionstatechange(event);
}
}
};
window.RTCPeerConnection.prototype.createOffer = function() {
var self = this;
if (this._pendingOffer) {
throw new Error('createOffer called while there is a pending offer.');
}
var offerOptions;
if (arguments.length === 1 && typeof arguments[0] !== 'function') {
offerOptions = arguments[0];
} else if (arguments.length === 3) {
offerOptions = arguments[2];
}
var tracks = [];
var numAudioTracks = 0;
var numVideoTracks = 0;
// Default to sendrecv.
if (this.localStreams.length) {
numAudioTracks = this.localStreams.reduce(function(numTracks, stream) {
return numTracks + stream.getAudioTracks().length;
}, 0);
numVideoTracks = this.localStreams.reduce(function(numTracks, stream) {
return numTracks + stream.getVideoTracks().length;
}, 0);
}
// 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;
}
}
// Push local streams.
this.localStreams.forEach(function(localStream) {
localStream.getTracks().forEach(function(track) {
tracks.push({
kind: track.kind,
track: track,
stream: localStream,
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--;
}
}
// reorder tracks
tracks = sortTracks(tracks);
var sdp = SDPUtils.writeSessionBoilerplate();
var transceivers = [];
tracks.forEach(function(mline, sdpMLineIndex) {
// For each track, create an ice gatherer, ice transport,
// dtls transport, potentially rtpsender and rtpreceiver.
var track = mline.track;
var kind = mline.kind;
var mid = SDPUtils.generateIdentifier();
var transports = self.usingBundle && sdpMLineIndex > 0 ? {
iceGatherer: transceivers[0].iceGatherer,
iceTransport: transceivers[0].iceTransport,
dtlsTransport: transceivers[0].dtlsTransport
} : self._createIceAndDtlsTransports(mid, sdpMLineIndex);
var localCapabilities = RTCRtpSender.getCapabilities(kind);
// filter RTX until additional stuff needed for RTX is implemented
// in adapter.js
if (browserDetails.version < 15019) {
localCapabilities.codecs = localCapabilities.codecs.filter(
function(codec) {
return codec.name !== 'rtx';
});
}
localCapabilities.codecs.forEach(function(codec) {
// work around https://bugs.chromium.org/p/webrtc/issues/detail?id=6552
// by adding level-asymmetry-allowed=1
if (codec.name === 'H264' &&
codec.parameters['level-asymmetry-allowed'] === undefined) {
codec.parameters['level-asymmetry-allowed'] = '1';
}
});
var rtpSender;
var rtpReceiver;
// generate an ssrc now, to be used later in rtpSender.send
var sendEncodingParameters = [{
ssrc: (2 * sdpMLineIndex + 1) * 1001
}];
if (track) {
// add RTX
if (browserDetails.version >= 15019 && kind === 'video') {
sendEncodingParameters[0].rtx = {
ssrc: (2 * sdpMLineIndex + 1) * 1001 + 1
};
}
rtpSender = new RTCRtpSender(track, transports.dtlsTransport);
}
if (mline.wantReceive) {
rtpReceiver = new RTCRtpReceiver(transports.dtlsTransport, kind);
}
transceivers[sdpMLineIndex] = {
iceGatherer: transports.iceGatherer,
iceTransport: transports.iceTransport,
dtlsTransport: transports.dtlsTransport,
localCapabilities: localCapabilities,
remoteCapabilities: null,
rtpSender: rtpSender,
rtpReceiver: rtpReceiver,
kind: kind,
mid: mid,
sendEncodingParameters: sendEncodingParameters,
recvEncodingParameters: null
};
});
// always offer BUNDLE and dispose on return if not supported.
if (this._config.bundlePolicy !== 'max-compat') {
sdp += 'a=group:BUNDLE ' + transceivers.map(function(t) {
return t.mid;
}).join(' ') + '\r\n';
}
sdp += 'a=ice-options:trickle\r\n';
tracks.forEach(function(mline, sdpMLineIndex) {
var transceiver = transceivers[sdpMLineIndex];
sdp += SDPUtils.writeMediaSection(transceiver,
transceiver.localCapabilities, 'offer', mline.stream);
sdp += 'a=rtcp-rsize\r\n';
});
this._pendingOffer = transceivers;
var desc = new RTCSessionDescription({
type: 'offer',
sdp: sdp
});
if (arguments.length && typeof arguments[0] === 'function') {
window.setTimeout(arguments[0], 0, desc);
}
return Promise.resolve(desc);
};
window.RTCPeerConnection.prototype.createAnswer = function() {
var self = this;
var sdp = SDPUtils.writeSessionBoilerplate();
if (this.usingBundle) {
sdp += 'a=group:BUNDLE ' + this.transceivers.map(function(t) {
return t.mid;
}).join(' ') + '\r\n';
}
this.transceivers.forEach(function(transceiver) {
if (transceiver.isDatachannel) {
sdp += 'm=application 0 DTLS/SCTP 5000\r\n' +
'c=IN IP4 0.0.0.0\r\n' +
'a=mid:' + transceiver.mid + '\r\n';
return;
}
// Calculate intersection of capabilities.
var commonCapabilities = self._getCommonCapabilities(
transceiver.localCapabilities,
transceiver.remoteCapabilities);
var hasRtx = commonCapabilities.codecs.filter(function(c) {
return c.name.toLowerCase() === 'rtx';
}).length;
if (!hasRtx && transceiver.sendEncodingParameters[0].rtx) {
delete transceiver.sendEncodingParameters[0].rtx;
}
sdp += SDPUtils.writeMediaSection(transceiver, commonCapabilities,
'answer', self.localStreams[0]);
if (transceiver.rtcpParameters &&
transceiver.rtcpParameters.reducedSize) {
sdp += 'a=rtcp-rsize\r\n';
}
});
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) {
if (!candidate) {
for (var j = 0; j < this.transceivers.length; j++) {
this.transceivers[j].iceTransport.addRemoteCandidate({});
if (this.usingBundle) {
return Promise.resolve();
}
}
} else {
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 || cand.port === 9)) {
return Promise.resolve();
}
// Ignore RTCP candidates, we assume RTCP-MUX.
if (cand.component !== '1') {
return Promise.resolve();
}
transceiver.iceTransport.addRemoteCandidate(cand);
// update the remoteDescription.
var sections = SDPUtils.splitSections(this.remoteDescription.sdp);
sections[mLineIndex + 1] += (cand.type ? candidate.candidate.trim()
: 'a=end-of-candidates') + '\r\n';
this.remoteDescription.sdp = sections.join('');
}
}
if (arguments.length > 1 && typeof arguments[1] === 'function') {
window.setTimeout(arguments[1], 0);
}
return Promise.resolve();
};
window.RTCPeerConnection.prototype.getStats = function() {
var promises = [];
this.transceivers.forEach(function(transceiver) {
['rtpSender', 'rtpReceiver', 'iceGatherer', 'iceTransport',
'dtlsTransport'].forEach(function(method) {
if (transceiver[method]) {
promises.push(transceiver[method].getStats());
}
});
});
var cb = arguments.length > 1 && typeof arguments[1] === 'function' &&
arguments[1];
var fixStatsType = function(stat) {
return {
inboundrtp: 'inbound-rtp',
outboundrtp: 'outbound-rtp',
candidatepair: 'candidate-pair',
localcandidate: 'local-candidate',
remotecandidate: 'remote-candidate'
}[stat.type] || stat.type;
};
return new Promise(function(resolve) {
// shim getStats with maplike support
var results = new Map();
Promise.all(promises).then(function(res) {
res.forEach(function(result) {
Object.keys(result).forEach(function(id) {
result[id].type = fixStatsType(result[id]);
results.set(id, result[id]);
});
});
if (cb) {
window.setTimeout(cb, 0, results);
}
resolve(results);
});
});
};
window.RTCPeerConnection = shimRTCPeerConnection(browserDetails.version);
},

@@ -1326,8 +60,1 @@ shimReplaceTrack: function() {

};
// Expose public methods.
module.exports = {
shimPeerConnection: edgeShim.shimPeerConnection,
shimGetUserMedia: require('./getusermedia'),
shimReplaceTrack: edgeShim.shimReplaceTrack
};

2

test/unit/edge.js

@@ -164,2 +164,4 @@ /*

utils.browserDetails.version = 14392;
// need to re-evaluate after changing the browser version.
shim.shimPeerConnection();
pc = new RTCPeerConnection({

@@ -166,0 +168,0 @@ iceServers: [{urls: 'stun:stun.l.google.com'}]

out/adapter_no_global.js

Sorry, the diff of this file is too big to display

out/adapter.js

Sorry, the diff of this file is too big to display

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