4450 lines
151 KiB
JavaScript
4450 lines
151 KiB
JavaScript
(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){
|
||
/*
|
||
* Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
'use strict';
|
||
|
||
var SDPUtils = require('sdp');
|
||
|
||
function writeMediaSection(transceiver, caps, type, stream, dtlsRole) {
|
||
var sdp = SDPUtils.writeRtpDescription(transceiver.kind, caps);
|
||
|
||
// Map ICE parameters (ufrag, pwd) to SDP.
|
||
sdp += SDPUtils.writeIceParameters(
|
||
transceiver.iceGatherer.getLocalParameters());
|
||
|
||
// Map DTLS parameters to SDP.
|
||
sdp += SDPUtils.writeDtlsParameters(
|
||
transceiver.dtlsTransport.getLocalParameters(),
|
||
type === 'offer' ? 'actpass' : dtlsRole || 'active');
|
||
|
||
sdp += 'a=mid:' + transceiver.mid + '\r\n';
|
||
|
||
if (transceiver.direction) {
|
||
sdp += 'a=' + transceiver.direction + '\r\n';
|
||
} else if (transceiver.rtpSender && transceiver.rtpReceiver) {
|
||
sdp += 'a=sendrecv\r\n';
|
||
} else if (transceiver.rtpSender) {
|
||
sdp += 'a=sendonly\r\n';
|
||
} else if (transceiver.rtpReceiver) {
|
||
sdp += 'a=recvonly\r\n';
|
||
} else {
|
||
sdp += 'a=inactive\r\n';
|
||
}
|
||
|
||
if (transceiver.rtpSender) {
|
||
// spec.
|
||
var msid = 'msid:' + stream.id + ' ' +
|
||
transceiver.rtpSender.track.id + '\r\n';
|
||
sdp += 'a=' + msid;
|
||
|
||
// for Chrome.
|
||
sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
|
||
' ' + msid;
|
||
if (transceiver.sendEncodingParameters[0].rtx) {
|
||
sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
|
||
' ' + msid;
|
||
sdp += 'a=ssrc-group:FID ' +
|
||
transceiver.sendEncodingParameters[0].ssrc + ' ' +
|
||
transceiver.sendEncodingParameters[0].rtx.ssrc +
|
||
'\r\n';
|
||
}
|
||
}
|
||
// FIXME: this should be written by writeRtpDescription.
|
||
sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
|
||
' cname:' + SDPUtils.localCName + '\r\n';
|
||
if (transceiver.rtpSender && transceiver.sendEncodingParameters[0].rtx) {
|
||
sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
|
||
' cname:' + SDPUtils.localCName + '\r\n';
|
||
}
|
||
return sdp;
|
||
}
|
||
|
||
// Edge does not like
|
||
// 1) stun: filtered after 14393 unless ?transport=udp is present
|
||
// 2) turn: that does not have all of turn:host:port?transport=udp
|
||
// 3) turn: with ipv6 addresses
|
||
// 4) turn: occurring muliple times
|
||
function filterIceServers(iceServers, edgeVersion) {
|
||
var hasTurn = false;
|
||
iceServers = JSON.parse(JSON.stringify(iceServers));
|
||
return iceServers.filter(function(server) {
|
||
if (server && (server.urls || server.url)) {
|
||
var urls = server.urls || server.url;
|
||
if (server.url && !server.urls) {
|
||
console.warn('RTCIceServer.url is deprecated! Use urls instead.');
|
||
}
|
||
var isString = typeof urls === 'string';
|
||
if (isString) {
|
||
urls = [urls];
|
||
}
|
||
urls = urls.filter(function(url) {
|
||
var validTurn = url.indexOf('turn:') === 0 &&
|
||
url.indexOf('transport=udp') !== -1 &&
|
||
url.indexOf('turn:[') === -1 &&
|
||
!hasTurn;
|
||
|
||
if (validTurn) {
|
||
hasTurn = true;
|
||
return true;
|
||
}
|
||
return url.indexOf('stun:') === 0 && edgeVersion >= 14393 &&
|
||
url.indexOf('?transport=udp') === -1;
|
||
});
|
||
|
||
delete server.url;
|
||
server.urls = isString ? urls[0] : urls;
|
||
return !!urls.length;
|
||
}
|
||
return false;
|
||
});
|
||
}
|
||
|
||
// Determines the intersection of local and remote capabilities.
|
||
function getCommonCapabilities(localCapabilities, remoteCapabilities) {
|
||
var commonCapabilities = {
|
||
codecs: [],
|
||
headerExtensions: [],
|
||
fecMechanisms: []
|
||
};
|
||
|
||
var findCodecByPayloadType = function(pt, codecs) {
|
||
pt = parseInt(pt, 10);
|
||
for (var i = 0; i < codecs.length; i++) {
|
||
if (codecs[i].payloadType === pt ||
|
||
codecs[i].preferredPayloadType === pt) {
|
||
return codecs[i];
|
||
}
|
||
}
|
||
};
|
||
|
||
var rtxCapabilityMatches = function(lRtx, rRtx, lCodecs, rCodecs) {
|
||
var lCodec = findCodecByPayloadType(lRtx.parameters.apt, lCodecs);
|
||
var rCodec = findCodecByPayloadType(rRtx.parameters.apt, rCodecs);
|
||
return lCodec && rCodec &&
|
||
lCodec.name.toLowerCase() === rCodec.name.toLowerCase();
|
||
};
|
||
|
||
localCapabilities.codecs.forEach(function(lCodec) {
|
||
for (var i = 0; i < remoteCapabilities.codecs.length; i++) {
|
||
var rCodec = remoteCapabilities.codecs[i];
|
||
if (lCodec.name.toLowerCase() === rCodec.name.toLowerCase() &&
|
||
lCodec.clockRate === rCodec.clockRate) {
|
||
if (lCodec.name.toLowerCase() === 'rtx' &&
|
||
lCodec.parameters && rCodec.parameters.apt) {
|
||
// for RTX we need to find the local rtx that has a apt
|
||
// which points to the same local codec as the remote one.
|
||
if (!rtxCapabilityMatches(lCodec, rCodec,
|
||
localCapabilities.codecs, remoteCapabilities.codecs)) {
|
||
continue;
|
||
}
|
||
}
|
||
rCodec = JSON.parse(JSON.stringify(rCodec)); // deepcopy
|
||
// number of channels is the highest common number of channels
|
||
rCodec.numChannels = Math.min(lCodec.numChannels,
|
||
rCodec.numChannels);
|
||
// push rCodec so we reply with offerer payload type
|
||
commonCapabilities.codecs.push(rCodec);
|
||
|
||
// determine common feedback mechanisms
|
||
rCodec.rtcpFeedback = rCodec.rtcpFeedback.filter(function(fb) {
|
||
for (var j = 0; j < lCodec.rtcpFeedback.length; j++) {
|
||
if (lCodec.rtcpFeedback[j].type === fb.type &&
|
||
lCodec.rtcpFeedback[j].parameter === fb.parameter) {
|
||
return true;
|
||
}
|
||
}
|
||
return false;
|
||
});
|
||
// FIXME: also need to determine .parameters
|
||
// see https://github.com/openpeer/ortc/issues/569
|
||
break;
|
||
}
|
||
}
|
||
});
|
||
|
||
localCapabilities.headerExtensions.forEach(function(lHeaderExtension) {
|
||
for (var i = 0; i < remoteCapabilities.headerExtensions.length;
|
||
i++) {
|
||
var rHeaderExtension = remoteCapabilities.headerExtensions[i];
|
||
if (lHeaderExtension.uri === rHeaderExtension.uri) {
|
||
commonCapabilities.headerExtensions.push(rHeaderExtension);
|
||
break;
|
||
}
|
||
}
|
||
});
|
||
|
||
// FIXME: fecMechanisms
|
||
return commonCapabilities;
|
||
}
|
||
|
||
// is action=setLocalDescription with type allowed in signalingState
|
||
function isActionAllowedInSignalingState(action, type, signalingState) {
|
||
return {
|
||
offer: {
|
||
setLocalDescription: ['stable', 'have-local-offer'],
|
||
setRemoteDescription: ['stable', 'have-remote-offer']
|
||
},
|
||
answer: {
|
||
setLocalDescription: ['have-remote-offer', 'have-local-pranswer'],
|
||
setRemoteDescription: ['have-local-offer', 'have-remote-pranswer']
|
||
}
|
||
}[type][action].indexOf(signalingState) !== -1;
|
||
}
|
||
|
||
function maybeAddCandidate(iceTransport, candidate) {
|
||
// Edge's internal representation adds some fields therefore
|
||
// not all fieldѕ are taken into account.
|
||
var alreadyAdded = iceTransport.getRemoteCandidates()
|
||
.find(function(remoteCandidate) {
|
||
return candidate.foundation === remoteCandidate.foundation &&
|
||
candidate.ip === remoteCandidate.ip &&
|
||
candidate.port === remoteCandidate.port &&
|
||
candidate.priority === remoteCandidate.priority &&
|
||
candidate.protocol === remoteCandidate.protocol &&
|
||
candidate.type === remoteCandidate.type;
|
||
});
|
||
if (!alreadyAdded) {
|
||
iceTransport.addRemoteCandidate(candidate);
|
||
}
|
||
return !alreadyAdded;
|
||
}
|
||
|
||
module.exports = function(window, edgeVersion) {
|
||
var 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.needNegotiation = false;
|
||
|
||
this.localStreams = [];
|
||
this.remoteStreams = [];
|
||
|
||
this.localDescription = null;
|
||
this.remoteDescription = null;
|
||
|
||
this.signalingState = 'stable';
|
||
this.iceConnectionState = 'new';
|
||
this.iceGatheringState = 'new';
|
||
|
||
config = JSON.parse(JSON.stringify(config || {}));
|
||
|
||
this.usingBundle = config.bundlePolicy === 'max-bundle';
|
||
if (config.rtcpMuxPolicy === 'negotiate') {
|
||
var e = new Error('rtcpMuxPolicy \'negotiate\' is not supported');
|
||
e.name = 'NotSupportedError';
|
||
throw(e);
|
||
} else if (!config.rtcpMuxPolicy) {
|
||
config.rtcpMuxPolicy = 'require';
|
||
}
|
||
|
||
switch (config.iceTransportPolicy) {
|
||
case 'all':
|
||
case 'relay':
|
||
break;
|
||
default:
|
||
config.iceTransportPolicy = 'all';
|
||
break;
|
||
}
|
||
|
||
switch (config.bundlePolicy) {
|
||
case 'balanced':
|
||
case 'max-compat':
|
||
case 'max-bundle':
|
||
break;
|
||
default:
|
||
config.bundlePolicy = 'balanced';
|
||
break;
|
||
}
|
||
|
||
config.iceServers = filterIceServers(config.iceServers || [], edgeVersion);
|
||
|
||
this._iceGatherers = [];
|
||
if (config.iceCandidatePoolSize) {
|
||
for (var i = config.iceCandidatePoolSize; i > 0; i--) {
|
||
this._iceGatherers = new window.RTCIceGatherer({
|
||
iceServers: config.iceServers,
|
||
gatherPolicy: config.iceTransportPolicy
|
||
});
|
||
}
|
||
} else {
|
||
config.iceCandidatePoolSize = 0;
|
||
}
|
||
|
||
this._config = config;
|
||
|
||
// per-track iceGathers, iceTransports, dtlsTransports, rtpSenders, ...
|
||
// everything that is needed to describe a SDP m-line.
|
||
this.transceivers = [];
|
||
|
||
this._sdpSessionId = SDPUtils.generateSessionId();
|
||
this._sdpSessionVersion = 0;
|
||
|
||
this._dtlsRole = undefined; // role for a=setup to use in answers.
|
||
};
|
||
|
||
RTCPeerConnection.prototype._emitGatheringStateChange = function() {
|
||
var event = new Event('icegatheringstatechange');
|
||
this.dispatchEvent(event);
|
||
if (typeof this.onicegatheringstatechange === 'function') {
|
||
this.onicegatheringstatechange(event);
|
||
}
|
||
};
|
||
|
||
RTCPeerConnection.prototype.getConfiguration = function() {
|
||
return this._config;
|
||
};
|
||
|
||
RTCPeerConnection.prototype.getLocalStreams = function() {
|
||
return this.localStreams;
|
||
};
|
||
|
||
RTCPeerConnection.prototype.getRemoteStreams = function() {
|
||
return this.remoteStreams;
|
||
};
|
||
|
||
// internal helper to create a transceiver object.
|
||
// (whih is not yet the same as the WebRTC 1.0 transceiver)
|
||
RTCPeerConnection.prototype._createTransceiver = function(kind) {
|
||
var hasBundleTransport = this.transceivers.length > 0;
|
||
var transceiver = {
|
||
track: null,
|
||
iceGatherer: null,
|
||
iceTransport: null,
|
||
dtlsTransport: null,
|
||
localCapabilities: null,
|
||
remoteCapabilities: null,
|
||
rtpSender: null,
|
||
rtpReceiver: null,
|
||
kind: kind,
|
||
mid: null,
|
||
sendEncodingParameters: null,
|
||
recvEncodingParameters: null,
|
||
stream: null,
|
||
wantReceive: true
|
||
};
|
||
if (this.usingBundle && hasBundleTransport) {
|
||
transceiver.iceTransport = this.transceivers[0].iceTransport;
|
||
transceiver.dtlsTransport = this.transceivers[0].dtlsTransport;
|
||
} else {
|
||
var transports = this._createIceAndDtlsTransports();
|
||
transceiver.iceTransport = transports.iceTransport;
|
||
transceiver.dtlsTransport = transports.dtlsTransport;
|
||
}
|
||
this.transceivers.push(transceiver);
|
||
return transceiver;
|
||
};
|
||
|
||
RTCPeerConnection.prototype.addTrack = function(track, stream) {
|
||
var transceiver;
|
||
for (var i = 0; i < this.transceivers.length; i++) {
|
||
if (!this.transceivers[i].track &&
|
||
this.transceivers[i].kind === track.kind) {
|
||
transceiver = this.transceivers[i];
|
||
}
|
||
}
|
||
if (!transceiver) {
|
||
transceiver = this._createTransceiver(track.kind);
|
||
}
|
||
|
||
this._maybeFireNegotiationNeeded();
|
||
|
||
if (this.localStreams.indexOf(stream) === -1) {
|
||
this.localStreams.push(stream);
|
||
}
|
||
|
||
transceiver.track = track;
|
||
transceiver.stream = stream;
|
||
transceiver.rtpSender = new window.RTCRtpSender(track,
|
||
transceiver.dtlsTransport);
|
||
return transceiver.rtpSender;
|
||
};
|
||
|
||
RTCPeerConnection.prototype.addStream = function(stream) {
|
||
var self = this;
|
||
if (edgeVersion >= 15025) {
|
||
stream.getTracks().forEach(function(track) {
|
||
self.addTrack(track, stream);
|
||
});
|
||
} else {
|
||
// Clone is necessary for local demos mostly, attaching directly
|
||
// to two different senders does not work (build 10547).
|
||
// Fixed in 15025 (or earlier)
|
||
var clonedStream = stream.clone();
|
||
stream.getTracks().forEach(function(track, idx) {
|
||
var clonedTrack = clonedStream.getTracks()[idx];
|
||
track.addEventListener('enabled', function(event) {
|
||
clonedTrack.enabled = event.enabled;
|
||
});
|
||
});
|
||
clonedStream.getTracks().forEach(function(track) {
|
||
self.addTrack(track, clonedStream);
|
||
});
|
||
}
|
||
};
|
||
|
||
RTCPeerConnection.prototype.removeStream = function(stream) {
|
||
var idx = this.localStreams.indexOf(stream);
|
||
if (idx > -1) {
|
||
this.localStreams.splice(idx, 1);
|
||
this._maybeFireNegotiationNeeded();
|
||
}
|
||
};
|
||
|
||
RTCPeerConnection.prototype.getSenders = function() {
|
||
return this.transceivers.filter(function(transceiver) {
|
||
return !!transceiver.rtpSender;
|
||
})
|
||
.map(function(transceiver) {
|
||
return transceiver.rtpSender;
|
||
});
|
||
};
|
||
|
||
RTCPeerConnection.prototype.getReceivers = function() {
|
||
return this.transceivers.filter(function(transceiver) {
|
||
return !!transceiver.rtpReceiver;
|
||
})
|
||
.map(function(transceiver) {
|
||
return transceiver.rtpReceiver;
|
||
});
|
||
};
|
||
|
||
|
||
RTCPeerConnection.prototype._createIceGatherer = function(sdpMLineIndex,
|
||
usingBundle) {
|
||
var self = this;
|
||
if (usingBundle && sdpMLineIndex > 0) {
|
||
return this.transceivers[0].iceGatherer;
|
||
} else if (this._iceGatherers.length) {
|
||
return this._iceGatherers.shift();
|
||
}
|
||
var iceGatherer = new window.RTCIceGatherer({
|
||
iceServers: this._config.iceServers,
|
||
gatherPolicy: this._config.iceTransportPolicy
|
||
});
|
||
Object.defineProperty(iceGatherer, 'state',
|
||
{value: 'new', writable: true}
|
||
);
|
||
|
||
this.transceivers[sdpMLineIndex].candidates = [];
|
||
this.transceivers[sdpMLineIndex].bufferCandidates = function(event) {
|
||
var end = !event.candidate || Object.keys(event.candidate).length === 0;
|
||
// polyfill since RTCIceGatherer.state is not implemented in
|
||
// Edge 10547 yet.
|
||
iceGatherer.state = end ? 'completed' : 'gathering';
|
||
if (self.transceivers[sdpMLineIndex].candidates !== null) {
|
||
self.transceivers[sdpMLineIndex].candidates.push(event.candidate);
|
||
}
|
||
};
|
||
iceGatherer.addEventListener('localcandidate',
|
||
this.transceivers[sdpMLineIndex].bufferCandidates);
|
||
return iceGatherer;
|
||
};
|
||
|
||
// start gathering from an RTCIceGatherer.
|
||
RTCPeerConnection.prototype._gather = function(mid, sdpMLineIndex) {
|
||
var self = this;
|
||
var iceGatherer = this.transceivers[sdpMLineIndex].iceGatherer;
|
||
if (iceGatherer.onlocalcandidate) {
|
||
return;
|
||
}
|
||
var candidates = this.transceivers[sdpMLineIndex].candidates;
|
||
this.transceivers[sdpMLineIndex].candidates = null;
|
||
iceGatherer.removeEventListener('localcandidate',
|
||
this.transceivers[sdpMLineIndex].bufferCandidates);
|
||
iceGatherer.onlocalcandidate = function(evt) {
|
||
if (self.usingBundle && sdpMLineIndex > 0) {
|
||
// if we know that we use bundle we can drop candidates with
|
||
// ѕdpMLineIndex > 0. If we don't do this then our state gets
|
||
// confused since we dispose the extra ice gatherer.
|
||
return;
|
||
}
|
||
var event = new Event('icecandidate');
|
||
event.candidate = {sdpMid: mid, sdpMLineIndex: sdpMLineIndex};
|
||
|
||
var cand = evt.candidate;
|
||
// Edge emits an empty object for RTCIceCandidateComplete‥
|
||
var end = !cand || Object.keys(cand).length === 0;
|
||
if (end) {
|
||
// polyfill since RTCIceGatherer.state is not implemented in
|
||
// Edge 10547 yet.
|
||
if (iceGatherer.state === 'new' || iceGatherer.state === 'gathering') {
|
||
iceGatherer.state = 'completed';
|
||
}
|
||
} else {
|
||
if (iceGatherer.state === 'new') {
|
||
iceGatherer.state = 'gathering';
|
||
}
|
||
// RTCIceCandidate doesn't have a component, needs to be added
|
||
cand.component = 1;
|
||
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 complete = self.transceivers.every(function(transceiver) {
|
||
return transceiver.iceGatherer &&
|
||
transceiver.iceGatherer.state === 'completed';
|
||
});
|
||
|
||
if (self.iceGatheringState !== 'gathering') {
|
||
self.iceGatheringState = 'gathering';
|
||
self._emitGatheringStateChange();
|
||
}
|
||
|
||
// Emit candidate. Also emit null candidate when all gatherers are
|
||
// complete.
|
||
if (!end) {
|
||
self.dispatchEvent(event);
|
||
if (typeof self.onicecandidate === 'function') {
|
||
self.onicecandidate(event);
|
||
}
|
||
}
|
||
if (complete) {
|
||
self.dispatchEvent(new Event('icecandidate'));
|
||
if (typeof self.onicecandidate === 'function') {
|
||
self.onicecandidate(new Event('icecandidate'));
|
||
}
|
||
self.iceGatheringState = 'complete';
|
||
self._emitGatheringStateChange();
|
||
}
|
||
};
|
||
|
||
// emit already gathered candidates.
|
||
window.setTimeout(function() {
|
||
candidates.forEach(function(candidate) {
|
||
var e = new Event('RTCIceGatherEvent');
|
||
e.candidate = candidate;
|
||
iceGatherer.onlocalcandidate(e);
|
||
});
|
||
}, 0);
|
||
};
|
||
|
||
// Create ICE transport and DTLS transport.
|
||
RTCPeerConnection.prototype._createIceAndDtlsTransports = function() {
|
||
var self = this;
|
||
var iceTransport = new window.RTCIceTransport(null);
|
||
iceTransport.onicestatechange = function() {
|
||
self._updateConnectionState();
|
||
};
|
||
|
||
var dtlsTransport = new window.RTCDtlsTransport(iceTransport);
|
||
dtlsTransport.ondtlsstatechange = function() {
|
||
self._updateConnectionState();
|
||
};
|
||
dtlsTransport.onerror = function() {
|
||
// onerror does not set state to failed by itself.
|
||
Object.defineProperty(dtlsTransport, 'state',
|
||
{value: 'failed', writable: true});
|
||
self._updateConnectionState();
|
||
};
|
||
|
||
return {
|
||
iceTransport: iceTransport,
|
||
dtlsTransport: dtlsTransport
|
||
};
|
||
};
|
||
|
||
// Destroy ICE gatherer, ICE transport and DTLS transport.
|
||
// Without triggering the callbacks.
|
||
RTCPeerConnection.prototype._disposeIceAndDtlsTransports = function(
|
||
sdpMLineIndex) {
|
||
var iceGatherer = this.transceivers[sdpMLineIndex].iceGatherer;
|
||
if (iceGatherer) {
|
||
delete iceGatherer.onlocalcandidate;
|
||
delete this.transceivers[sdpMLineIndex].iceGatherer;
|
||
}
|
||
var iceTransport = this.transceivers[sdpMLineIndex].iceTransport;
|
||
if (iceTransport) {
|
||
delete iceTransport.onicestatechange;
|
||
delete this.transceivers[sdpMLineIndex].iceTransport;
|
||
}
|
||
var dtlsTransport = this.transceivers[sdpMLineIndex].dtlsTransport;
|
||
if (dtlsTransport) {
|
||
delete dtlsTransport.ondtlsstatechange;
|
||
delete dtlsTransport.onerror;
|
||
delete this.transceivers[sdpMLineIndex].dtlsTransport;
|
||
}
|
||
};
|
||
|
||
// Start the RTP Sender and Receiver for a transceiver.
|
||
RTCPeerConnection.prototype._transceive = function(transceiver,
|
||
send, recv) {
|
||
var params = getCommonCapabilities(transceiver.localCapabilities,
|
||
transceiver.remoteCapabilities);
|
||
if (send && transceiver.rtpSender) {
|
||
params.encodings = transceiver.sendEncodingParameters;
|
||
params.rtcp = {
|
||
cname: SDPUtils.localCName,
|
||
compound: transceiver.rtcpParameters.compound
|
||
};
|
||
if (transceiver.recvEncodingParameters.length) {
|
||
params.rtcp.ssrc = transceiver.recvEncodingParameters[0].ssrc;
|
||
}
|
||
transceiver.rtpSender.send(params);
|
||
}
|
||
if (recv && transceiver.rtpReceiver && params.codecs.length > 0) {
|
||
// remove RTX field in Edge 14942
|
||
if (transceiver.kind === 'video'
|
||
&& transceiver.recvEncodingParameters
|
||
&& edgeVersion < 15019) {
|
||
transceiver.recvEncodingParameters.forEach(function(p) {
|
||
delete p.rtx;
|
||
});
|
||
}
|
||
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);
|
||
}
|
||
};
|
||
|
||
RTCPeerConnection.prototype.setLocalDescription = function(description) {
|
||
var self = this;
|
||
var args = arguments;
|
||
|
||
if (!isActionAllowedInSignalingState('setLocalDescription',
|
||
description.type, this.signalingState)) {
|
||
return new Promise(function(resolve, reject) {
|
||
var e = new Error('Can not set local ' + description.type +
|
||
' in state ' + self.signalingState);
|
||
e.name = 'InvalidStateError';
|
||
if (args.length > 2 && typeof args[2] === 'function') {
|
||
args[2].apply(null, [e]);
|
||
}
|
||
reject(e);
|
||
});
|
||
}
|
||
|
||
var sections;
|
||
var sessionpart;
|
||
if (description.type === 'offer') {
|
||
// VERY limited support for SDP munging. Limited to:
|
||
// * changing the order of codecs
|
||
sections = SDPUtils.splitSections(description.sdp);
|
||
sessionpart = sections.shift();
|
||
sections.forEach(function(mediaSection, sdpMLineIndex) {
|
||
var caps = SDPUtils.parseRtpParameters(mediaSection);
|
||
self.transceivers[sdpMLineIndex].localCapabilities = caps;
|
||
});
|
||
|
||
this.transceivers.forEach(function(transceiver, sdpMLineIndex) {
|
||
self._gather(transceiver.mid, sdpMLineIndex);
|
||
});
|
||
} 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;
|
||
|
||
// treat bundle-only as not-rejected.
|
||
var rejected = SDPUtils.isRejected(mediaSection) &&
|
||
!SDPUtils.matchPrefix(mediaSection, 'a=bundle-only').length === 1;
|
||
|
||
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) {
|
||
self._gather(transceiver.mid, sdpMLineIndex);
|
||
if (iceTransport.state === 'new') {
|
||
iceTransport.start(iceGatherer, remoteIceParameters,
|
||
isIceLite ? 'controlling' : 'controlled');
|
||
}
|
||
if (dtlsTransport.state === 'new') {
|
||
dtlsTransport.start(remoteDtlsParameters);
|
||
}
|
||
}
|
||
|
||
// Calculate intersection of capabilities.
|
||
var params = getCommonCapabilities(localCapabilities,
|
||
remoteCapabilities);
|
||
|
||
// Start the RTCRtpSender. The RTCRtpReceiver for this
|
||
// transceiver has already been started in setRemoteDescription.
|
||
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 cb = arguments.length > 1 && typeof arguments[1] === 'function' &&
|
||
arguments[1];
|
||
return new Promise(function(resolve) {
|
||
if (cb) {
|
||
cb.apply(null);
|
||
}
|
||
resolve();
|
||
});
|
||
};
|
||
|
||
RTCPeerConnection.prototype.setRemoteDescription = function(description) {
|
||
var self = this;
|
||
var args = arguments;
|
||
|
||
if (!isActionAllowedInSignalingState('setRemoteDescription',
|
||
description.type, this.signalingState)) {
|
||
return new Promise(function(resolve, reject) {
|
||
var e = new Error('Can not set remote ' + description.type +
|
||
' in state ' + self.signalingState);
|
||
e.name = 'InvalidStateError';
|
||
if (args.length > 2 && typeof args[2] === 'function') {
|
||
args[2].apply(null, [e]);
|
||
}
|
||
reject(e);
|
||
});
|
||
}
|
||
|
||
var streams = {};
|
||
this.remoteStreams.forEach(function(stream) {
|
||
streams[stream.id] = stream;
|
||
});
|
||
var receiverList = [];
|
||
var sections = SDPUtils.splitSections(description.sdp);
|
||
var sessionpart = sections.shift();
|
||
var isIceLite = SDPUtils.matchPrefix(sessionpart,
|
||
'a=ice-lite').length > 0;
|
||
var usingBundle = SDPUtils.matchPrefix(sessionpart,
|
||
'a=group:BUNDLE ').length > 0;
|
||
this.usingBundle = usingBundle;
|
||
var iceOptions = SDPUtils.matchPrefix(sessionpart,
|
||
'a=ice-options:')[0];
|
||
if (iceOptions) {
|
||
this.canTrickleIceCandidates = iceOptions.substr(14).split(' ')
|
||
.indexOf('trickle') >= 0;
|
||
} else {
|
||
this.canTrickleIceCandidates = false;
|
||
}
|
||
|
||
sections.forEach(function(mediaSection, sdpMLineIndex) {
|
||
var lines = SDPUtils.splitLines(mediaSection);
|
||
var kind = SDPUtils.getKind(mediaSection);
|
||
// treat bundle-only as not-rejected.
|
||
var rejected = SDPUtils.isRejected(mediaSection) &&
|
||
!SDPUtils.matchPrefix(mediaSection, 'a=bundle-only').length === 1;
|
||
var protocol = lines[0].substr(2).split(' ')[2];
|
||
|
||
var direction = SDPUtils.getDirection(mediaSection, sessionpart);
|
||
var remoteMsid = SDPUtils.parseMsid(mediaSection);
|
||
|
||
var mid = SDPUtils.getMid(mediaSection) || SDPUtils.generateIdentifier();
|
||
|
||
// Reject datachannels which are not implemented yet.
|
||
if (kind === 'application' && protocol === 'DTLS/SCTP') {
|
||
self.transceivers[sdpMLineIndex] = {
|
||
mid: mid,
|
||
isDatachannel: true
|
||
};
|
||
return;
|
||
}
|
||
|
||
var transceiver;
|
||
var iceGatherer;
|
||
var iceTransport;
|
||
var dtlsTransport;
|
||
var rtpReceiver;
|
||
var sendEncodingParameters;
|
||
var recvEncodingParameters;
|
||
var localCapabilities;
|
||
|
||
var track;
|
||
// FIXME: ensure the mediaSection has rtcp-mux set.
|
||
var remoteCapabilities = SDPUtils.parseRtpParameters(mediaSection);
|
||
var remoteIceParameters;
|
||
var remoteDtlsParameters;
|
||
if (!rejected) {
|
||
remoteIceParameters = SDPUtils.getIceParameters(mediaSection,
|
||
sessionpart);
|
||
remoteDtlsParameters = SDPUtils.getDtlsParameters(mediaSection,
|
||
sessionpart);
|
||
remoteDtlsParameters.role = 'client';
|
||
}
|
||
recvEncodingParameters =
|
||
SDPUtils.parseRtpEncodingParameters(mediaSection);
|
||
|
||
var rtcpParameters = SDPUtils.parseRtcpParameters(mediaSection);
|
||
|
||
var isComplete = SDPUtils.matchPrefix(mediaSection,
|
||
'a=end-of-candidates', sessionpart).length > 0;
|
||
var cands = SDPUtils.matchPrefix(mediaSection, 'a=candidate:')
|
||
.map(function(cand) {
|
||
return SDPUtils.parseCandidate(cand);
|
||
})
|
||
.filter(function(cand) {
|
||
return cand.component === 1;
|
||
});
|
||
|
||
// Check if we can use BUNDLE and dispose transports.
|
||
if ((description.type === 'offer' || description.type === 'answer') &&
|
||
!rejected && usingBundle && sdpMLineIndex > 0 &&
|
||
self.transceivers[sdpMLineIndex]) {
|
||
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);
|
||
}
|
||
}
|
||
if (description.type === 'offer' && !rejected) {
|
||
transceiver = self.transceivers[sdpMLineIndex] ||
|
||
self._createTransceiver(kind);
|
||
transceiver.mid = mid;
|
||
|
||
if (!transceiver.iceGatherer) {
|
||
transceiver.iceGatherer = self._createIceGatherer(sdpMLineIndex,
|
||
usingBundle);
|
||
}
|
||
|
||
if (cands.length && transceiver.iceTransport.state === 'new') {
|
||
if (isComplete && (!usingBundle || sdpMLineIndex === 0)) {
|
||
transceiver.iceTransport.setRemoteCandidates(cands);
|
||
} else {
|
||
cands.forEach(function(candidate) {
|
||
maybeAddCandidate(transceiver.iceTransport, candidate);
|
||
});
|
||
}
|
||
}
|
||
|
||
localCapabilities = window.RTCRtpReceiver.getCapabilities(kind);
|
||
|
||
// filter RTX until additional stuff needed for RTX is implemented
|
||
// in adapter.js
|
||
if (edgeVersion < 15019) {
|
||
localCapabilities.codecs = localCapabilities.codecs.filter(
|
||
function(codec) {
|
||
return codec.name !== 'rtx';
|
||
});
|
||
}
|
||
|
||
sendEncodingParameters = transceiver.sendEncodingParameters || [{
|
||
ssrc: (2 * sdpMLineIndex + 2) * 1001
|
||
}];
|
||
|
||
var isNewTrack = false;
|
||
if (direction === 'sendrecv' || direction === 'sendonly') {
|
||
isNewTrack = !transceiver.rtpReceiver;
|
||
rtpReceiver = transceiver.rtpReceiver ||
|
||
new window.RTCRtpReceiver(transceiver.dtlsTransport, kind);
|
||
|
||
if (isNewTrack) {
|
||
var stream;
|
||
track = rtpReceiver.track;
|
||
// FIXME: does not work with Plan B.
|
||
if (remoteMsid) {
|
||
if (!streams[remoteMsid.stream]) {
|
||
streams[remoteMsid.stream] = new window.MediaStream();
|
||
Object.defineProperty(streams[remoteMsid.stream], 'id', {
|
||
get: function() {
|
||
return remoteMsid.stream;
|
||
}
|
||
});
|
||
}
|
||
Object.defineProperty(track, 'id', {
|
||
get: function() {
|
||
return remoteMsid.track;
|
||
}
|
||
});
|
||
stream = streams[remoteMsid.stream];
|
||
} else {
|
||
if (!streams.default) {
|
||
streams.default = new window.MediaStream();
|
||
}
|
||
stream = streams.default;
|
||
}
|
||
stream.addTrack(track);
|
||
receiverList.push([track, rtpReceiver, stream]);
|
||
}
|
||
}
|
||
|
||
transceiver.localCapabilities = localCapabilities;
|
||
transceiver.remoteCapabilities = remoteCapabilities;
|
||
transceiver.rtpReceiver = rtpReceiver;
|
||
transceiver.rtcpParameters = rtcpParameters;
|
||
transceiver.sendEncodingParameters = sendEncodingParameters;
|
||
transceiver.recvEncodingParameters = recvEncodingParameters;
|
||
|
||
// Start the RTCRtpReceiver now. The RTPSender is started in
|
||
// setLocalDescription.
|
||
self._transceive(self.transceivers[sdpMLineIndex],
|
||
false,
|
||
isNewTrack);
|
||
} else if (description.type === 'answer' && !rejected) {
|
||
transceiver = self.transceivers[sdpMLineIndex];
|
||
iceGatherer = transceiver.iceGatherer;
|
||
iceTransport = transceiver.iceTransport;
|
||
dtlsTransport = transceiver.dtlsTransport;
|
||
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 (cands.length && iceTransport.state === 'new') {
|
||
if ((isIceLite || isComplete) &&
|
||
(!usingBundle || sdpMLineIndex === 0)) {
|
||
iceTransport.setRemoteCandidates(cands);
|
||
} else {
|
||
cands.forEach(function(candidate) {
|
||
maybeAddCandidate(transceiver.iceTransport, candidate);
|
||
});
|
||
}
|
||
}
|
||
|
||
if (!usingBundle || sdpMLineIndex === 0) {
|
||
if (iceTransport.state === 'new') {
|
||
iceTransport.start(iceGatherer, remoteIceParameters,
|
||
'controlling');
|
||
}
|
||
if (dtlsTransport.state === 'new') {
|
||
dtlsTransport.start(remoteDtlsParameters);
|
||
}
|
||
}
|
||
|
||
self._transceive(transceiver,
|
||
direction === 'sendrecv' || direction === 'recvonly',
|
||
direction === 'sendrecv' || direction === 'sendonly');
|
||
|
||
if (rtpReceiver &&
|
||
(direction === 'sendrecv' || direction === 'sendonly')) {
|
||
track = rtpReceiver.track;
|
||
if (remoteMsid) {
|
||
if (!streams[remoteMsid.stream]) {
|
||
streams[remoteMsid.stream] = new window.MediaStream();
|
||
}
|
||
streams[remoteMsid.stream].addTrack(track);
|
||
receiverList.push([track, rtpReceiver, streams[remoteMsid.stream]]);
|
||
} else {
|
||
if (!streams.default) {
|
||
streams.default = new window.MediaStream();
|
||
}
|
||
streams.default.addTrack(track);
|
||
receiverList.push([track, rtpReceiver, streams.default]);
|
||
}
|
||
} else {
|
||
// FIXME: actually the receiver should be created later.
|
||
delete transceiver.rtpReceiver;
|
||
}
|
||
}
|
||
});
|
||
|
||
if (this._dtlsRole === undefined) {
|
||
this._dtlsRole = description.type === 'offer' ? 'active' : 'passive';
|
||
}
|
||
|
||
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) {
|
||
if (self.remoteStreams.indexOf(stream) === -1) {
|
||
self.remoteStreams.push(stream);
|
||
var event = new Event('addstream');
|
||
event.stream = stream;
|
||
window.setTimeout(function() {
|
||
self.dispatchEvent(event);
|
||
if (typeof self.onaddstream === 'function') {
|
||
self.onaddstream(event);
|
||
}
|
||
});
|
||
}
|
||
|
||
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.transceiver = {receiver: receiver};
|
||
trackEvent.streams = [stream];
|
||
window.setTimeout(function() {
|
||
self.dispatchEvent(trackEvent);
|
||
if (typeof self.ontrack === 'function') {
|
||
self.ontrack(trackEvent);
|
||
}
|
||
});
|
||
});
|
||
}
|
||
});
|
||
|
||
// check whether addIceCandidate({}) was called within four seconds after
|
||
// setRemoteDescription.
|
||
window.setTimeout(function() {
|
||
if (!(self && self.transceivers)) {
|
||
return;
|
||
}
|
||
self.transceivers.forEach(function(transceiver) {
|
||
if (transceiver.iceTransport &&
|
||
transceiver.iceTransport.state === 'new' &&
|
||
transceiver.iceTransport.getRemoteCandidates().length > 0) {
|
||
console.warn('Timeout for addRemoteCandidate. Consider sending ' +
|
||
'an end-of-candidates notification');
|
||
transceiver.iceTransport.addRemoteCandidate({});
|
||
}
|
||
});
|
||
}, 4000);
|
||
|
||
return new Promise(function(resolve) {
|
||
if (args.length > 1 && typeof args[1] === 'function') {
|
||
args[1].apply(null);
|
||
}
|
||
resolve();
|
||
});
|
||
};
|
||
|
||
RTCPeerConnection.prototype.close = function() {
|
||
this.transceivers.forEach(function(transceiver) {
|
||
/* not yet
|
||
if (transceiver.iceGatherer) {
|
||
transceiver.iceGatherer.close();
|
||
}
|
||
*/
|
||
if (transceiver.iceTransport) {
|
||
transceiver.iceTransport.stop();
|
||
}
|
||
if (transceiver.dtlsTransport) {
|
||
transceiver.dtlsTransport.stop();
|
||
}
|
||
if (transceiver.rtpSender) {
|
||
transceiver.rtpSender.stop();
|
||
}
|
||
if (transceiver.rtpReceiver) {
|
||
transceiver.rtpReceiver.stop();
|
||
}
|
||
});
|
||
// FIXME: clean up tracks, local streams, remote streams, etc
|
||
this._updateSignalingState('closed');
|
||
};
|
||
|
||
// Update the signaling state.
|
||
RTCPeerConnection.prototype._updateSignalingState = function(newState) {
|
||
this.signalingState = newState;
|
||
var event = new Event('signalingstatechange');
|
||
this.dispatchEvent(event);
|
||
if (typeof this.onsignalingstatechange === 'function') {
|
||
this.onsignalingstatechange(event);
|
||
}
|
||
};
|
||
|
||
// Determine whether to fire the negotiationneeded event.
|
||
RTCPeerConnection.prototype._maybeFireNegotiationNeeded = function() {
|
||
var self = this;
|
||
if (this.signalingState !== 'stable' || this.needNegotiation === true) {
|
||
return;
|
||
}
|
||
this.needNegotiation = true;
|
||
window.setTimeout(function() {
|
||
if (self.needNegotiation === false) {
|
||
return;
|
||
}
|
||
self.needNegotiation = false;
|
||
var event = new Event('negotiationneeded');
|
||
self.dispatchEvent(event);
|
||
if (typeof self.onnegotiationneeded === 'function') {
|
||
self.onnegotiationneeded(event);
|
||
}
|
||
}, 0);
|
||
};
|
||
|
||
// Update the connection state.
|
||
RTCPeerConnection.prototype._updateConnectionState = function() {
|
||
var newState;
|
||
var states = {
|
||
'new': 0,
|
||
closed: 0,
|
||
connecting: 0,
|
||
checking: 0,
|
||
connected: 0,
|
||
completed: 0,
|
||
disconnected: 0,
|
||
failed: 0
|
||
};
|
||
this.transceivers.forEach(function(transceiver) {
|
||
states[transceiver.iceTransport.state]++;
|
||
states[transceiver.dtlsTransport.state]++;
|
||
});
|
||
// ICETransport.completed and connected are the same for this purpose.
|
||
states.connected += states.completed;
|
||
|
||
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 !== this.iceConnectionState) {
|
||
this.iceConnectionState = newState;
|
||
var event = new Event('iceconnectionstatechange');
|
||
this.dispatchEvent(event);
|
||
if (typeof this.oniceconnectionstatechange === 'function') {
|
||
this.oniceconnectionstatechange(event);
|
||
}
|
||
}
|
||
};
|
||
|
||
RTCPeerConnection.prototype.createOffer = function() {
|
||
var self = this;
|
||
var args = arguments;
|
||
|
||
var offerOptions;
|
||
if (arguments.length === 1 && typeof arguments[0] !== 'function') {
|
||
offerOptions = arguments[0];
|
||
} else if (arguments.length === 3) {
|
||
offerOptions = arguments[2];
|
||
}
|
||
|
||
var numAudioTracks = this.transceivers.filter(function(t) {
|
||
return t.kind === 'audio';
|
||
}).length;
|
||
var numVideoTracks = this.transceivers.filter(function(t) {
|
||
return t.kind === 'video';
|
||
}).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) {
|
||
if (offerOptions.offerToReceiveAudio === true) {
|
||
numAudioTracks = 1;
|
||
} else if (offerOptions.offerToReceiveAudio === false) {
|
||
numAudioTracks = 0;
|
||
} else {
|
||
numAudioTracks = offerOptions.offerToReceiveAudio;
|
||
}
|
||
}
|
||
if (offerOptions.offerToReceiveVideo !== undefined) {
|
||
if (offerOptions.offerToReceiveVideo === true) {
|
||
numVideoTracks = 1;
|
||
} else if (offerOptions.offerToReceiveVideo === false) {
|
||
numVideoTracks = 0;
|
||
} else {
|
||
numVideoTracks = offerOptions.offerToReceiveVideo;
|
||
}
|
||
}
|
||
}
|
||
|
||
this.transceivers.forEach(function(transceiver) {
|
||
if (transceiver.kind === 'audio') {
|
||
numAudioTracks--;
|
||
if (numAudioTracks < 0) {
|
||
transceiver.wantReceive = false;
|
||
}
|
||
} else if (transceiver.kind === 'video') {
|
||
numVideoTracks--;
|
||
if (numVideoTracks < 0) {
|
||
transceiver.wantReceive = false;
|
||
}
|
||
}
|
||
});
|
||
|
||
// Create M-lines for recvonly streams.
|
||
while (numAudioTracks > 0 || numVideoTracks > 0) {
|
||
if (numAudioTracks > 0) {
|
||
this._createTransceiver('audio');
|
||
numAudioTracks--;
|
||
}
|
||
if (numVideoTracks > 0) {
|
||
this._createTransceiver('video');
|
||
numVideoTracks--;
|
||
}
|
||
}
|
||
|
||
var sdp = SDPUtils.writeSessionBoilerplate(this._sdpSessionId,
|
||
this._sdpSessionVersion++);
|
||
this.transceivers.forEach(function(transceiver, sdpMLineIndex) {
|
||
// For each track, create an ice gatherer, ice transport,
|
||
// dtls transport, potentially rtpsender and rtpreceiver.
|
||
var track = transceiver.track;
|
||
var kind = transceiver.kind;
|
||
var mid = SDPUtils.generateIdentifier();
|
||
transceiver.mid = mid;
|
||
|
||
if (!transceiver.iceGatherer) {
|
||
transceiver.iceGatherer = self._createIceGatherer(sdpMLineIndex,
|
||
self.usingBundle);
|
||
}
|
||
|
||
var localCapabilities = window.RTCRtpSender.getCapabilities(kind);
|
||
// filter RTX until additional stuff needed for RTX is implemented
|
||
// in adapter.js
|
||
if (edgeVersion < 15019) {
|
||
localCapabilities.codecs = localCapabilities.codecs.filter(
|
||
function(codec) {
|
||
return codec.name !== 'rtx';
|
||
});
|
||
}
|
||
localCapabilities.codecs.forEach(function(codec) {
|
||
// work around https://bugs.chromium.org/p/webrtc/issues/detail?id=6552
|
||
// by adding level-asymmetry-allowed=1
|
||
if (codec.name === 'H264' &&
|
||
codec.parameters['level-asymmetry-allowed'] === undefined) {
|
||
codec.parameters['level-asymmetry-allowed'] = '1';
|
||
}
|
||
});
|
||
|
||
// generate an ssrc now, to be used later in rtpSender.send
|
||
var sendEncodingParameters = transceiver.sendEncodingParameters || [{
|
||
ssrc: (2 * sdpMLineIndex + 1) * 1001
|
||
}];
|
||
if (track) {
|
||
// add RTX
|
||
if (edgeVersion >= 15019 && kind === 'video' &&
|
||
!sendEncodingParameters[0].rtx) {
|
||
sendEncodingParameters[0].rtx = {
|
||
ssrc: sendEncodingParameters[0].ssrc + 1
|
||
};
|
||
}
|
||
}
|
||
|
||
if (transceiver.wantReceive) {
|
||
transceiver.rtpReceiver = new window.RTCRtpReceiver(
|
||
transceiver.dtlsTransport, kind);
|
||
}
|
||
|
||
transceiver.localCapabilities = localCapabilities;
|
||
transceiver.sendEncodingParameters = sendEncodingParameters;
|
||
});
|
||
|
||
// always offer BUNDLE and dispose on return if not supported.
|
||
if (this._config.bundlePolicy !== 'max-compat') {
|
||
sdp += 'a=group:BUNDLE ' + this.transceivers.map(function(t) {
|
||
return t.mid;
|
||
}).join(' ') + '\r\n';
|
||
}
|
||
sdp += 'a=ice-options:trickle\r\n';
|
||
|
||
this.transceivers.forEach(function(transceiver, sdpMLineIndex) {
|
||
sdp += writeMediaSection(transceiver, transceiver.localCapabilities,
|
||
'offer', transceiver.stream, self._dtlsRole);
|
||
sdp += 'a=rtcp-rsize\r\n';
|
||
|
||
if (transceiver.iceGatherer && self.iceGatheringState !== 'new' &&
|
||
(sdpMLineIndex === 0 || !self.usingBundle)) {
|
||
transceiver.iceGatherer.getLocalCandidates().forEach(function(cand) {
|
||
cand.component = 1;
|
||
sdp += 'a=' + SDPUtils.writeCandidate(cand) + '\r\n';
|
||
});
|
||
|
||
if (transceiver.iceGatherer.state === 'completed') {
|
||
sdp += 'a=end-of-candidates\r\n';
|
||
}
|
||
}
|
||
});
|
||
|
||
var desc = new window.RTCSessionDescription({
|
||
type: 'offer',
|
||
sdp: sdp
|
||
});
|
||
return new Promise(function(resolve) {
|
||
if (args.length > 0 && typeof args[0] === 'function') {
|
||
args[0].apply(null, [desc]);
|
||
resolve();
|
||
return;
|
||
}
|
||
resolve(desc);
|
||
});
|
||
};
|
||
|
||
RTCPeerConnection.prototype.createAnswer = function() {
|
||
var self = this;
|
||
var args = arguments;
|
||
|
||
var sdp = SDPUtils.writeSessionBoilerplate(this._sdpSessionId,
|
||
this._sdpSessionVersion++);
|
||
if (this.usingBundle) {
|
||
sdp += 'a=group:BUNDLE ' + this.transceivers.map(function(t) {
|
||
return t.mid;
|
||
}).join(' ') + '\r\n';
|
||
}
|
||
var mediaSectionsInOffer = SDPUtils.splitSections(
|
||
this.remoteDescription.sdp).length - 1;
|
||
this.transceivers.forEach(function(transceiver, sdpMLineIndex) {
|
||
if (sdpMLineIndex + 1 > mediaSectionsInOffer) {
|
||
return;
|
||
}
|
||
if (transceiver.isDatachannel) {
|
||
sdp += 'm=application 0 DTLS/SCTP 5000\r\n' +
|
||
'c=IN IP4 0.0.0.0\r\n' +
|
||
'a=mid:' + transceiver.mid + '\r\n';
|
||
return;
|
||
}
|
||
|
||
// FIXME: look at direction.
|
||
if (transceiver.stream) {
|
||
var localTrack;
|
||
if (transceiver.kind === 'audio') {
|
||
localTrack = transceiver.stream.getAudioTracks()[0];
|
||
} else if (transceiver.kind === 'video') {
|
||
localTrack = transceiver.stream.getVideoTracks()[0];
|
||
}
|
||
if (localTrack) {
|
||
// add RTX
|
||
if (edgeVersion >= 15019 && transceiver.kind === 'video' &&
|
||
!transceiver.sendEncodingParameters[0].rtx) {
|
||
transceiver.sendEncodingParameters[0].rtx = {
|
||
ssrc: transceiver.sendEncodingParameters[0].ssrc + 1
|
||
};
|
||
}
|
||
}
|
||
}
|
||
|
||
// Calculate intersection of capabilities.
|
||
var commonCapabilities = getCommonCapabilities(
|
||
transceiver.localCapabilities,
|
||
transceiver.remoteCapabilities);
|
||
|
||
var hasRtx = commonCapabilities.codecs.filter(function(c) {
|
||
return c.name.toLowerCase() === 'rtx';
|
||
}).length;
|
||
if (!hasRtx && transceiver.sendEncodingParameters[0].rtx) {
|
||
delete transceiver.sendEncodingParameters[0].rtx;
|
||
}
|
||
|
||
sdp += writeMediaSection(transceiver, commonCapabilities,
|
||
'answer', transceiver.stream, self._dtlsRole);
|
||
if (transceiver.rtcpParameters &&
|
||
transceiver.rtcpParameters.reducedSize) {
|
||
sdp += 'a=rtcp-rsize\r\n';
|
||
}
|
||
});
|
||
|
||
var desc = new window.RTCSessionDescription({
|
||
type: 'answer',
|
||
sdp: sdp
|
||
});
|
||
return new Promise(function(resolve) {
|
||
if (args.length > 0 && typeof args[0] === 'function') {
|
||
args[0].apply(null, [desc]);
|
||
resolve();
|
||
return;
|
||
}
|
||
resolve(desc);
|
||
});
|
||
};
|
||
|
||
RTCPeerConnection.prototype.addIceCandidate = function(candidate) {
|
||
var err;
|
||
var sections;
|
||
if (!candidate || candidate.candidate === '') {
|
||
for (var j = 0; j < this.transceivers.length; j++) {
|
||
if (this.transceivers[j].isDatachannel) {
|
||
continue;
|
||
}
|
||
this.transceivers[j].iceTransport.addRemoteCandidate({});
|
||
sections = SDPUtils.splitSections(this.remoteDescription.sdp);
|
||
sections[j + 1] += 'a=end-of-candidates\r\n';
|
||
this.remoteDescription.sdp = sections.join('');
|
||
if (this.usingBundle) {
|
||
break;
|
||
}
|
||
}
|
||
} else if (!(candidate.sdpMLineIndex !== undefined || candidate.sdpMid)) {
|
||
throw new TypeError('sdpMLineIndex or sdpMid required');
|
||
} else if (!this.remoteDescription) {
|
||
err = new Error('Can not add ICE candidate without ' +
|
||
'a remote description');
|
||
err.name = 'InvalidStateError';
|
||
} else {
|
||
var sdpMLineIndex = candidate.sdpMLineIndex;
|
||
if (candidate.sdpMid) {
|
||
for (var i = 0; i < this.transceivers.length; i++) {
|
||
if (this.transceivers[i].mid === candidate.sdpMid) {
|
||
sdpMLineIndex = i;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
var transceiver = this.transceivers[sdpMLineIndex];
|
||
if (transceiver) {
|
||
if (transceiver.isDatachannel) {
|
||
return Promise.resolve();
|
||
}
|
||
var cand = Object.keys(candidate.candidate).length > 0 ?
|
||
SDPUtils.parseCandidate(candidate.candidate) : {};
|
||
// Ignore Chrome's invalid candidates since Edge does not like them.
|
||
if (cand.protocol === 'tcp' && (cand.port === 0 || cand.port === 9)) {
|
||
return Promise.resolve();
|
||
}
|
||
// Ignore RTCP candidates, we assume RTCP-MUX.
|
||
if (cand.component && cand.component !== 1) {
|
||
return Promise.resolve();
|
||
}
|
||
// when using bundle, avoid adding candidates to the wrong
|
||
// ice transport. And avoid adding candidates added in the SDP.
|
||
if (sdpMLineIndex === 0 || (sdpMLineIndex > 0 &&
|
||
transceiver.iceTransport !== this.transceivers[0].iceTransport)) {
|
||
if (!maybeAddCandidate(transceiver.iceTransport, cand)) {
|
||
err = new Error('Can not add ICE candidate');
|
||
err.name = 'OperationError';
|
||
}
|
||
}
|
||
|
||
if (!err) {
|
||
// update the remoteDescription.
|
||
var candidateString = candidate.candidate.trim();
|
||
if (candidateString.indexOf('a=') === 0) {
|
||
candidateString = candidateString.substr(2);
|
||
}
|
||
sections = SDPUtils.splitSections(this.remoteDescription.sdp);
|
||
sections[sdpMLineIndex + 1] += 'a=' +
|
||
(cand.type ? candidateString : 'end-of-candidates')
|
||
+ '\r\n';
|
||
this.remoteDescription.sdp = sections.join('');
|
||
}
|
||
} else {
|
||
err = new Error('Can not add ICE candidate');
|
||
err.name = 'OperationError';
|
||
}
|
||
}
|
||
var args = arguments;
|
||
return new Promise(function(resolve, reject) {
|
||
if (err) {
|
||
if (args.length > 2 && typeof args[2] === 'function') {
|
||
args[2].apply(null, [err]);
|
||
}
|
||
reject(err);
|
||
} else {
|
||
if (args.length > 1 && typeof args[1] === 'function') {
|
||
args[1].apply(null);
|
||
}
|
||
resolve();
|
||
}
|
||
});
|
||
};
|
||
|
||
RTCPeerConnection.prototype.getStats = function() {
|
||
var promises = [];
|
||
this.transceivers.forEach(function(transceiver) {
|
||
['rtpSender', 'rtpReceiver', 'iceGatherer', 'iceTransport',
|
||
'dtlsTransport'].forEach(function(method) {
|
||
if (transceiver[method]) {
|
||
promises.push(transceiver[method].getStats());
|
||
}
|
||
});
|
||
});
|
||
var 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) {
|
||
cb.apply(null, results);
|
||
}
|
||
resolve(results);
|
||
});
|
||
});
|
||
};
|
||
return RTCPeerConnection;
|
||
};
|
||
|
||
},{"sdp":2}],2:[function(require,module,exports){
|
||
/* eslint-env node */
|
||
'use strict';
|
||
|
||
// SDP helpers.
|
||
var SDPUtils = {};
|
||
|
||
// Generate an alphanumeric identifier for cname or mids.
|
||
// TODO: use UUIDs instead? https://gist.github.com/jed/982883
|
||
SDPUtils.generateIdentifier = function() {
|
||
return Math.random().toString(36).substr(2, 10);
|
||
};
|
||
|
||
// The RTCP CNAME used by all peerconnections from the same JS.
|
||
SDPUtils.localCName = SDPUtils.generateIdentifier();
|
||
|
||
// Splits SDP into lines, dealing with both CRLF and LF.
|
||
SDPUtils.splitLines = function(blob) {
|
||
return blob.trim().split('\n').map(function(line) {
|
||
return line.trim();
|
||
});
|
||
};
|
||
// Splits SDP into sessionpart and mediasections. Ensures CRLF.
|
||
SDPUtils.splitSections = function(blob) {
|
||
var parts = blob.split('\nm=');
|
||
return parts.map(function(part, index) {
|
||
return (index > 0 ? 'm=' + part : part).trim() + '\r\n';
|
||
});
|
||
};
|
||
|
||
// Returns lines that start with a certain prefix.
|
||
SDPUtils.matchPrefix = function(blob, prefix) {
|
||
return SDPUtils.splitLines(blob).filter(function(line) {
|
||
return line.indexOf(prefix) === 0;
|
||
});
|
||
};
|
||
|
||
// Parses an ICE candidate line. Sample input:
|
||
// candidate:702786350 2 udp 41819902 8.8.8.8 60769 typ relay raddr 8.8.8.8
|
||
// rport 55996"
|
||
SDPUtils.parseCandidate = function(line) {
|
||
var parts;
|
||
// Parse both variants.
|
||
if (line.indexOf('a=candidate:') === 0) {
|
||
parts = line.substring(12).split(' ');
|
||
} else {
|
||
parts = line.substring(10).split(' ');
|
||
}
|
||
|
||
var candidate = {
|
||
foundation: parts[0],
|
||
component: parseInt(parts[1], 10),
|
||
protocol: parts[2].toLowerCase(),
|
||
priority: parseInt(parts[3], 10),
|
||
ip: parts[4],
|
||
port: parseInt(parts[5], 10),
|
||
// skip parts[6] == 'typ'
|
||
type: parts[7]
|
||
};
|
||
|
||
for (var i = 8; i < parts.length; i += 2) {
|
||
switch (parts[i]) {
|
||
case 'raddr':
|
||
candidate.relatedAddress = parts[i + 1];
|
||
break;
|
||
case 'rport':
|
||
candidate.relatedPort = parseInt(parts[i + 1], 10);
|
||
break;
|
||
case 'tcptype':
|
||
candidate.tcpType = parts[i + 1];
|
||
break;
|
||
case 'ufrag':
|
||
candidate.ufrag = parts[i + 1]; // for backward compability.
|
||
candidate.usernameFragment = parts[i + 1];
|
||
break;
|
||
default: // extension handling, in particular ufrag
|
||
candidate[parts[i]] = parts[i + 1];
|
||
break;
|
||
}
|
||
}
|
||
return candidate;
|
||
};
|
||
|
||
// Translates a candidate object into SDP candidate attribute.
|
||
SDPUtils.writeCandidate = function(candidate) {
|
||
var sdp = [];
|
||
sdp.push(candidate.foundation);
|
||
sdp.push(candidate.component);
|
||
sdp.push(candidate.protocol.toUpperCase());
|
||
sdp.push(candidate.priority);
|
||
sdp.push(candidate.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);
|
||
}
|
||
if (candidate.ufrag) {
|
||
sdp.push('ufrag');
|
||
sdp.push(candidate.ufrag);
|
||
}
|
||
return 'candidate:' + sdp.join(' ');
|
||
};
|
||
|
||
// Parses an ice-options line, returns an array of option tags.
|
||
// a=ice-options:foo bar
|
||
SDPUtils.parseIceOptions = function(line) {
|
||
return line.substr(14).split(' ');
|
||
}
|
||
|
||
// Parses an rtpmap line, returns RTCRtpCoddecParameters. Sample input:
|
||
// a=rtpmap:111 opus/48000/2
|
||
SDPUtils.parseRtpMap = function(line) {
|
||
var parts = line.substr(9).split(' ');
|
||
var parsed = {
|
||
payloadType: parseInt(parts.shift(), 10) // was: id
|
||
};
|
||
|
||
parts = parts[0].split('/');
|
||
|
||
parsed.name = parts[0];
|
||
parsed.clockRate = parseInt(parts[1], 10); // was: clockrate
|
||
// was: channels
|
||
parsed.numChannels = parts.length === 3 ? parseInt(parts[2], 10) : 1;
|
||
return parsed;
|
||
};
|
||
|
||
// Generate an a=rtpmap line from RTCRtpCodecCapability or
|
||
// RTCRtpCodecParameters.
|
||
SDPUtils.writeRtpMap = function(codec) {
|
||
var pt = codec.payloadType;
|
||
if (codec.preferredPayloadType !== undefined) {
|
||
pt = codec.preferredPayloadType;
|
||
}
|
||
return 'a=rtpmap:' + pt + ' ' + codec.name + '/' + codec.clockRate +
|
||
(codec.numChannels !== 1 ? '/' + codec.numChannels : '') + '\r\n';
|
||
};
|
||
|
||
// Parses an a=extmap line (headerextension from RFC 5285). Sample input:
|
||
// a=extmap:2 urn:ietf:params:rtp-hdrext:toffset
|
||
// a=extmap:2/sendonly urn:ietf:params:rtp-hdrext:toffset
|
||
SDPUtils.parseExtmap = function(line) {
|
||
var parts = line.substr(9).split(' ');
|
||
return {
|
||
id: parseInt(parts[0], 10),
|
||
direction: parts[0].indexOf('/') > 0 ? parts[0].split('/')[1] : 'sendrecv',
|
||
uri: parts[1]
|
||
};
|
||
};
|
||
|
||
// Generates a=extmap line from RTCRtpHeaderExtensionParameters or
|
||
// RTCRtpHeaderExtension.
|
||
SDPUtils.writeExtmap = function(headerExtension) {
|
||
return 'a=extmap:' + (headerExtension.id || headerExtension.preferredId) +
|
||
(headerExtension.direction && headerExtension.direction !== 'sendrecv'
|
||
? '/' + headerExtension.direction
|
||
: '') +
|
||
' ' + headerExtension.uri + '\r\n';
|
||
};
|
||
|
||
// Parses an ftmp line, returns dictionary. Sample input:
|
||
// a=fmtp:96 vbr=on;cng=on
|
||
// Also deals with vbr=on; cng=on
|
||
SDPUtils.parseFmtp = function(line) {
|
||
var parsed = {};
|
||
var kv;
|
||
var parts = line.substr(line.indexOf(' ') + 1).split(';');
|
||
for (var j = 0; j < parts.length; j++) {
|
||
kv = parts[j].trim().split('=');
|
||
parsed[kv[0].trim()] = kv[1];
|
||
}
|
||
return parsed;
|
||
};
|
||
|
||
// Generates an a=ftmp line from RTCRtpCodecCapability or RTCRtpCodecParameters.
|
||
SDPUtils.writeFmtp = function(codec) {
|
||
var line = '';
|
||
var pt = codec.payloadType;
|
||
if (codec.preferredPayloadType !== undefined) {
|
||
pt = codec.preferredPayloadType;
|
||
}
|
||
if (codec.parameters && Object.keys(codec.parameters).length) {
|
||
var params = [];
|
||
Object.keys(codec.parameters).forEach(function(param) {
|
||
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 && fb.parameter.length ? ' ' + fb.parameter : '') +
|
||
'\r\n';
|
||
});
|
||
}
|
||
return lines;
|
||
};
|
||
|
||
// Parses an RFC 5576 ssrc media attribute. Sample input:
|
||
// a=ssrc:3735928559 cname:something
|
||
SDPUtils.parseSsrcMedia = function(line) {
|
||
var sp = line.indexOf(' ');
|
||
var parts = {
|
||
ssrc: parseInt(line.substr(7, sp - 7), 10)
|
||
};
|
||
var colon = line.indexOf(':', sp);
|
||
if (colon > -1) {
|
||
parts.attribute = line.substr(sp + 1, colon - sp - 1);
|
||
parts.value = line.substr(colon + 1);
|
||
} else {
|
||
parts.attribute = line.substr(sp + 1);
|
||
}
|
||
return parts;
|
||
};
|
||
|
||
// Extracts the MID (RFC 5888) from a media section.
|
||
// returns the MID or undefined if no mid line was found.
|
||
SDPUtils.getMid = function(mediaSection) {
|
||
var mid = SDPUtils.matchPrefix(mediaSection, 'a=mid:')[0];
|
||
if (mid) {
|
||
return mid.substr(6);
|
||
}
|
||
}
|
||
|
||
SDPUtils.parseFingerprint = function(line) {
|
||
var parts = line.substr(14).split(' ');
|
||
return {
|
||
algorithm: parts[0].toLowerCase(), // algorithm is case-sensitive in Edge.
|
||
value: parts[1]
|
||
};
|
||
};
|
||
|
||
// Extracts DTLS parameters from SDP media section or sessionpart.
|
||
// FIXME: for consistency with other functions this should only
|
||
// get the fingerprint line as input. See also getIceParameters.
|
||
SDPUtils.getDtlsParameters = function(mediaSection, sessionpart) {
|
||
var lines = SDPUtils.matchPrefix(mediaSection + sessionpart,
|
||
'a=fingerprint:');
|
||
// Note: a=setup line is ignored since we use the 'auto' role.
|
||
// Note2: 'algorithm' is not case sensitive except in Edge.
|
||
return {
|
||
role: 'auto',
|
||
fingerprints: lines.map(SDPUtils.parseFingerprint)
|
||
};
|
||
};
|
||
|
||
// Serializes DTLS parameters to SDP.
|
||
SDPUtils.writeDtlsParameters = function(params, setupType) {
|
||
var sdp = 'a=setup:' + setupType + '\r\n';
|
||
params.fingerprints.forEach(function(fp) {
|
||
sdp += 'a=fingerprint:' + fp.algorithm + ' ' + fp.value + '\r\n';
|
||
});
|
||
return sdp;
|
||
};
|
||
// Parses ICE information from SDP media section or sessionpart.
|
||
// FIXME: for consistency with other functions this should only
|
||
// get the ice-ufrag and ice-pwd lines as input.
|
||
SDPUtils.getIceParameters = function(mediaSection, sessionpart) {
|
||
var lines = SDPUtils.splitLines(mediaSection);
|
||
// Search in session part, too.
|
||
lines = lines.concat(SDPUtils.splitLines(sessionpart));
|
||
var iceParameters = {
|
||
usernameFragment: lines.filter(function(line) {
|
||
return line.indexOf('a=ice-ufrag:') === 0;
|
||
})[0].substr(12),
|
||
password: lines.filter(function(line) {
|
||
return line.indexOf('a=ice-pwd:') === 0;
|
||
})[0].substr(10)
|
||
};
|
||
return iceParameters;
|
||
};
|
||
|
||
// Serializes ICE parameters to SDP.
|
||
SDPUtils.writeIceParameters = function(params) {
|
||
return 'a=ice-ufrag:' + params.usernameFragment + '\r\n' +
|
||
'a=ice-pwd:' + params.password + '\r\n';
|
||
};
|
||
|
||
// Parses the SDP media section and returns RTCRtpParameters.
|
||
SDPUtils.parseRtpParameters = function(mediaSection) {
|
||
var description = {
|
||
codecs: [],
|
||
headerExtensions: [],
|
||
fecMechanisms: [],
|
||
rtcp: []
|
||
};
|
||
var lines = SDPUtils.splitLines(mediaSection);
|
||
var mline = lines[0].split(' ');
|
||
for (var i = 3; i < mline.length; i++) { // find all codecs from mline[3..]
|
||
var pt = mline[i];
|
||
var rtpmapline = SDPUtils.matchPrefix(
|
||
mediaSection, 'a=rtpmap:' + pt + ' ')[0];
|
||
if (rtpmapline) {
|
||
var codec = SDPUtils.parseRtpMap(rtpmapline);
|
||
var fmtps = SDPUtils.matchPrefix(
|
||
mediaSection, 'a=fmtp:' + pt + ' ');
|
||
// Only the first a=fmtp:<pt> is considered.
|
||
codec.parameters = fmtps.length ? SDPUtils.parseFmtp(fmtps[0]) : {};
|
||
codec.rtcpFeedback = SDPUtils.matchPrefix(
|
||
mediaSection, 'a=rtcp-fb:' + pt + ' ')
|
||
.map(SDPUtils.parseRtcpFb);
|
||
description.codecs.push(codec);
|
||
// parse FEC mechanisms from rtpmap lines.
|
||
switch (codec.name.toUpperCase()) {
|
||
case 'RED':
|
||
case 'ULPFEC':
|
||
description.fecMechanisms.push(codec.name.toUpperCase());
|
||
break;
|
||
default: // only RED and ULPFEC are recognized as FEC mechanisms.
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
SDPUtils.matchPrefix(mediaSection, 'a=extmap:').forEach(function(line) {
|
||
description.headerExtensions.push(SDPUtils.parseExtmap(line));
|
||
});
|
||
// FIXME: parse rtcp.
|
||
return description;
|
||
};
|
||
|
||
// Generates parts of the SDP media section describing the capabilities /
|
||
// parameters.
|
||
SDPUtils.writeRtpDescription = function(kind, caps) {
|
||
var sdp = '';
|
||
|
||
// Build the mline.
|
||
sdp += 'm=' + kind + ' ';
|
||
sdp += caps.codecs.length > 0 ? '9' : '0'; // reject if no codecs.
|
||
sdp += ' UDP/TLS/RTP/SAVPF ';
|
||
sdp += caps.codecs.map(function(codec) {
|
||
if (codec.preferredPayloadType !== undefined) {
|
||
return codec.preferredPayloadType;
|
||
}
|
||
return codec.payloadType;
|
||
}).join(' ') + '\r\n';
|
||
|
||
sdp += 'c=IN IP4 0.0.0.0\r\n';
|
||
sdp += 'a=rtcp:9 IN IP4 0.0.0.0\r\n';
|
||
|
||
// Add a=rtpmap lines for each codec. Also fmtp and rtcp-fb.
|
||
caps.codecs.forEach(function(codec) {
|
||
sdp += SDPUtils.writeRtpMap(codec);
|
||
sdp += SDPUtils.writeFmtp(codec);
|
||
sdp += SDPUtils.writeRtcpFb(codec);
|
||
});
|
||
var maxptime = 0;
|
||
caps.codecs.forEach(function(codec) {
|
||
if (codec.maxptime > maxptime) {
|
||
maxptime = codec.maxptime;
|
||
}
|
||
});
|
||
if (maxptime > 0) {
|
||
sdp += 'a=maxptime:' + maxptime + '\r\n';
|
||
}
|
||
sdp += 'a=rtcp-mux\r\n';
|
||
|
||
caps.headerExtensions.forEach(function(extension) {
|
||
sdp += SDPUtils.writeExtmap(extension);
|
||
});
|
||
// FIXME: write fecMechanisms.
|
||
return sdp;
|
||
};
|
||
|
||
// Parses the SDP media section and returns an array of
|
||
// RTCRtpEncodingParameters.
|
||
SDPUtils.parseRtpEncodingParameters = function(mediaSection) {
|
||
var encodingParameters = [];
|
||
var description = SDPUtils.parseRtpParameters(mediaSection);
|
||
var hasRed = description.fecMechanisms.indexOf('RED') !== -1;
|
||
var hasUlpfec = description.fecMechanisms.indexOf('ULPFEC') !== -1;
|
||
|
||
// filter a=ssrc:... cname:, ignore PlanB-msid
|
||
var ssrcs = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
|
||
.map(function(line) {
|
||
return SDPUtils.parseSsrcMedia(line);
|
||
})
|
||
.filter(function(parts) {
|
||
return parts.attribute === 'cname';
|
||
});
|
||
var primarySsrc = ssrcs.length > 0 && ssrcs[0].ssrc;
|
||
var secondarySsrc;
|
||
|
||
var flows = SDPUtils.matchPrefix(mediaSection, 'a=ssrc-group:FID')
|
||
.map(function(line) {
|
||
var parts = line.split(' ');
|
||
parts.shift();
|
||
return parts.map(function(part) {
|
||
return parseInt(part, 10);
|
||
});
|
||
});
|
||
if (flows.length > 0 && flows[0].length > 1 && flows[0][0] === primarySsrc) {
|
||
secondarySsrc = flows[0][1];
|
||
}
|
||
|
||
description.codecs.forEach(function(codec) {
|
||
if (codec.name.toUpperCase() === 'RTX' && codec.parameters.apt) {
|
||
var encParam = {
|
||
ssrc: primarySsrc,
|
||
codecPayloadType: parseInt(codec.parameters.apt, 10),
|
||
rtx: {
|
||
ssrc: secondarySsrc
|
||
}
|
||
};
|
||
encodingParameters.push(encParam);
|
||
if (hasRed) {
|
||
encParam = JSON.parse(JSON.stringify(encParam));
|
||
encParam.fec = {
|
||
ssrc: secondarySsrc,
|
||
mechanism: hasUlpfec ? 'red+ulpfec' : 'red'
|
||
};
|
||
encodingParameters.push(encParam);
|
||
}
|
||
}
|
||
});
|
||
if (encodingParameters.length === 0 && primarySsrc) {
|
||
encodingParameters.push({
|
||
ssrc: primarySsrc
|
||
});
|
||
}
|
||
|
||
// we support both b=AS and b=TIAS but interpret AS as TIAS.
|
||
var bandwidth = SDPUtils.matchPrefix(mediaSection, 'b=');
|
||
if (bandwidth.length) {
|
||
if (bandwidth[0].indexOf('b=TIAS:') === 0) {
|
||
bandwidth = parseInt(bandwidth[0].substr(7), 10);
|
||
} else if (bandwidth[0].indexOf('b=AS:') === 0) {
|
||
// use formula from JSEP to convert b=AS to TIAS value.
|
||
bandwidth = parseInt(bandwidth[0].substr(5), 10) * 1000 * 0.95
|
||
- (50 * 40 * 8);
|
||
} else {
|
||
bandwidth = undefined;
|
||
}
|
||
encodingParameters.forEach(function(params) {
|
||
params.maxBitrate = bandwidth;
|
||
});
|
||
}
|
||
return encodingParameters;
|
||
};
|
||
|
||
// parses http://draft.ortc.org/#rtcrtcpparameters*
|
||
SDPUtils.parseRtcpParameters = function(mediaSection) {
|
||
var rtcpParameters = {};
|
||
|
||
var cname;
|
||
// Gets the first SSRC. Note that with RTX there might be multiple
|
||
// SSRCs.
|
||
var remoteSsrc = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
|
||
.map(function(line) {
|
||
return SDPUtils.parseSsrcMedia(line);
|
||
})
|
||
.filter(function(obj) {
|
||
return obj.attribute === 'cname';
|
||
})[0];
|
||
if (remoteSsrc) {
|
||
rtcpParameters.cname = remoteSsrc.value;
|
||
rtcpParameters.ssrc = remoteSsrc.ssrc;
|
||
}
|
||
|
||
// Edge uses the compound attribute instead of reducedSize
|
||
// compound is !reducedSize
|
||
var rsize = SDPUtils.matchPrefix(mediaSection, 'a=rtcp-rsize');
|
||
rtcpParameters.reducedSize = rsize.length > 0;
|
||
rtcpParameters.compound = rsize.length === 0;
|
||
|
||
// parses the rtcp-mux attrіbute.
|
||
// Note that Edge does not support unmuxed RTCP.
|
||
var mux = SDPUtils.matchPrefix(mediaSection, 'a=rtcp-mux');
|
||
rtcpParameters.mux = mux.length > 0;
|
||
|
||
return rtcpParameters;
|
||
};
|
||
|
||
// parses either a=msid: or a=ssrc:... msid lines and returns
|
||
// the id of the MediaStream and MediaStreamTrack.
|
||
SDPUtils.parseMsid = function(mediaSection) {
|
||
var parts;
|
||
var spec = SDPUtils.matchPrefix(mediaSection, 'a=msid:');
|
||
if (spec.length === 1) {
|
||
parts = spec[0].substr(7).split(' ');
|
||
return {stream: parts[0], track: parts[1]};
|
||
}
|
||
var planB = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
|
||
.map(function(line) {
|
||
return SDPUtils.parseSsrcMedia(line);
|
||
})
|
||
.filter(function(parts) {
|
||
return parts.attribute === 'msid';
|
||
});
|
||
if (planB.length > 0) {
|
||
parts = planB[0].value.split(' ');
|
||
return {stream: parts[0], track: parts[1]};
|
||
}
|
||
};
|
||
|
||
// Generate a session ID for SDP.
|
||
// https://tools.ietf.org/html/draft-ietf-rtcweb-jsep-20#section-5.2.1
|
||
// recommends using a cryptographically random +ve 64-bit value
|
||
// but right now this should be acceptable and within the right range
|
||
SDPUtils.generateSessionId = function() {
|
||
return Math.random().toString().substr(2, 21);
|
||
};
|
||
|
||
// Write boilder plate for start of SDP
|
||
// sessId argument is optional - if not supplied it will
|
||
// be generated randomly
|
||
// sessVersion is optional and defaults to 2
|
||
SDPUtils.writeSessionBoilerplate = function(sessId, sessVer) {
|
||
var sessionId;
|
||
var version = sessVer !== undefined ? sessVer : 2;
|
||
if (sessId) {
|
||
sessionId = sessId;
|
||
} else {
|
||
sessionId = SDPUtils.generateSessionId();
|
||
}
|
||
// FIXME: sess-id should be an NTP timestamp.
|
||
return 'v=0\r\n' +
|
||
'o=thisisadapterortc ' + sessionId + ' ' + version + ' IN IP4 127.0.0.1\r\n' +
|
||
's=-\r\n' +
|
||
't=0 0\r\n';
|
||
};
|
||
|
||
SDPUtils.writeMediaSection = function(transceiver, caps, type, stream) {
|
||
var sdp = SDPUtils.writeRtpDescription(transceiver.kind, caps);
|
||
|
||
// Map ICE parameters (ufrag, pwd) to SDP.
|
||
sdp += SDPUtils.writeIceParameters(
|
||
transceiver.iceGatherer.getLocalParameters());
|
||
|
||
// Map DTLS parameters to SDP.
|
||
sdp += SDPUtils.writeDtlsParameters(
|
||
transceiver.dtlsTransport.getLocalParameters(),
|
||
type === 'offer' ? 'actpass' : 'active');
|
||
|
||
sdp += 'a=mid:' + transceiver.mid + '\r\n';
|
||
|
||
if (transceiver.direction) {
|
||
sdp += 'a=' + transceiver.direction + '\r\n';
|
||
} else if (transceiver.rtpSender && transceiver.rtpReceiver) {
|
||
sdp += 'a=sendrecv\r\n';
|
||
} else if (transceiver.rtpSender) {
|
||
sdp += 'a=sendonly\r\n';
|
||
} else if (transceiver.rtpReceiver) {
|
||
sdp += 'a=recvonly\r\n';
|
||
} else {
|
||
sdp += 'a=inactive\r\n';
|
||
}
|
||
|
||
if (transceiver.rtpSender) {
|
||
// spec.
|
||
var msid = 'msid:' + stream.id + ' ' +
|
||
transceiver.rtpSender.track.id + '\r\n';
|
||
sdp += 'a=' + msid;
|
||
|
||
// for Chrome.
|
||
sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
|
||
' ' + msid;
|
||
if (transceiver.sendEncodingParameters[0].rtx) {
|
||
sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
|
||
' ' + msid;
|
||
sdp += 'a=ssrc-group:FID ' +
|
||
transceiver.sendEncodingParameters[0].ssrc + ' ' +
|
||
transceiver.sendEncodingParameters[0].rtx.ssrc +
|
||
'\r\n';
|
||
}
|
||
}
|
||
// FIXME: this should be written by writeRtpDescription.
|
||
sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
|
||
' cname:' + SDPUtils.localCName + '\r\n';
|
||
if (transceiver.rtpSender && transceiver.sendEncodingParameters[0].rtx) {
|
||
sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
|
||
' cname:' + SDPUtils.localCName + '\r\n';
|
||
}
|
||
return sdp;
|
||
};
|
||
|
||
// Gets the direction from the mediaSection or the sessionpart.
|
||
SDPUtils.getDirection = function(mediaSection, sessionpart) {
|
||
// Look for sendrecv, sendonly, recvonly, inactive, default to sendrecv.
|
||
var lines = SDPUtils.splitLines(mediaSection);
|
||
for (var i = 0; i < lines.length; i++) {
|
||
switch (lines[i]) {
|
||
case 'a=sendrecv':
|
||
case 'a=sendonly':
|
||
case 'a=recvonly':
|
||
case 'a=inactive':
|
||
return lines[i].substr(2);
|
||
default:
|
||
// FIXME: What should happen here?
|
||
}
|
||
}
|
||
if (sessionpart) {
|
||
return SDPUtils.getDirection(sessionpart);
|
||
}
|
||
return 'sendrecv';
|
||
};
|
||
|
||
SDPUtils.getKind = function(mediaSection) {
|
||
var lines = SDPUtils.splitLines(mediaSection);
|
||
var mline = lines[0].split(' ');
|
||
return mline[0].substr(2);
|
||
};
|
||
|
||
SDPUtils.isRejected = function(mediaSection) {
|
||
return mediaSection.split(' ', 2)[1] === '0';
|
||
};
|
||
|
||
SDPUtils.parseMLine = function(mediaSection) {
|
||
var lines = SDPUtils.splitLines(mediaSection);
|
||
var mline = lines[0].split(' ');
|
||
return {
|
||
kind: mline[0].substr(2),
|
||
port: parseInt(mline[1], 10),
|
||
protocol: mline[2],
|
||
fmt: mline.slice(3).join(' ')
|
||
};
|
||
};
|
||
|
||
// Expose public methods.
|
||
if (typeof module === 'object') {
|
||
module.exports = SDPUtils;
|
||
}
|
||
|
||
},{}],3:[function(require,module,exports){
|
||
(function (global){
|
||
/*
|
||
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
|
||
'use strict';
|
||
|
||
var adapterFactory = require('./adapter_factory.js');
|
||
module.exports = adapterFactory({window: global.window});
|
||
|
||
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
||
},{"./adapter_factory.js":4}],4:[function(require,module,exports){
|
||
/*
|
||
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
|
||
'use strict';
|
||
|
||
var utils = require('./utils');
|
||
// Shimming starts here.
|
||
module.exports = function(dependencies, opts) {
|
||
var window = dependencies && dependencies.window;
|
||
|
||
var options = {
|
||
shimChrome: true,
|
||
shimFirefox: true,
|
||
shimEdge: true,
|
||
shimSafari: true,
|
||
};
|
||
|
||
for (var key in opts) {
|
||
if (hasOwnProperty.call(opts, key)) {
|
||
options[key] = opts[key];
|
||
}
|
||
}
|
||
|
||
// Utils.
|
||
var logging = utils.log;
|
||
var browserDetails = utils.detectBrowser(window);
|
||
|
||
// Export to the adapter global object visible in the browser.
|
||
var adapter = {
|
||
browserDetails: browserDetails,
|
||
extractVersion: utils.extractVersion,
|
||
disableLog: utils.disableLog,
|
||
disableWarnings: utils.disableWarnings
|
||
};
|
||
|
||
// Uncomment the line below if you want logging to occur, including logging
|
||
// for the switch statement below. Can also be turned on in the browser via
|
||
// adapter.disableLog(false), but then logging from the switch statement below
|
||
// will not appear.
|
||
// require('./utils').disableLog(false);
|
||
|
||
// Browser shims.
|
||
var chromeShim = require('./chrome/chrome_shim') || null;
|
||
var edgeShim = require('./edge/edge_shim') || null;
|
||
var firefoxShim = require('./firefox/firefox_shim') || null;
|
||
var safariShim = require('./safari/safari_shim') || null;
|
||
var commonShim = require('./common_shim') || null;
|
||
|
||
// Shim browser if found.
|
||
switch (browserDetails.browser) {
|
||
case 'chrome':
|
||
if (!chromeShim || !chromeShim.shimPeerConnection ||
|
||
!options.shimChrome) {
|
||
logging('Chrome shim is not included in this adapter release.');
|
||
return adapter;
|
||
}
|
||
logging('adapter.js shimming chrome.');
|
||
// Export to the adapter global object visible in the browser.
|
||
adapter.browserShim = chromeShim;
|
||
commonShim.shimCreateObjectURL(window);
|
||
|
||
chromeShim.shimGetUserMedia(window);
|
||
chromeShim.shimMediaStream(window);
|
||
chromeShim.shimSourceObject(window);
|
||
chromeShim.shimPeerConnection(window);
|
||
chromeShim.shimOnTrack(window);
|
||
chromeShim.shimAddTrackRemoveTrack(window);
|
||
chromeShim.shimGetSendersWithDtmf(window);
|
||
|
||
commonShim.shimRTCIceCandidate(window);
|
||
break;
|
||
case 'firefox':
|
||
if (!firefoxShim || !firefoxShim.shimPeerConnection ||
|
||
!options.shimFirefox) {
|
||
logging('Firefox shim is not included in this adapter release.');
|
||
return adapter;
|
||
}
|
||
logging('adapter.js shimming firefox.');
|
||
// Export to the adapter global object visible in the browser.
|
||
adapter.browserShim = firefoxShim;
|
||
commonShim.shimCreateObjectURL(window);
|
||
|
||
firefoxShim.shimGetUserMedia(window);
|
||
firefoxShim.shimSourceObject(window);
|
||
firefoxShim.shimPeerConnection(window);
|
||
firefoxShim.shimOnTrack(window);
|
||
|
||
commonShim.shimRTCIceCandidate(window);
|
||
break;
|
||
case 'edge':
|
||
if (!edgeShim || !edgeShim.shimPeerConnection || !options.shimEdge) {
|
||
logging('MS edge shim is not included in this adapter release.');
|
||
return adapter;
|
||
}
|
||
logging('adapter.js shimming edge.');
|
||
// Export to the adapter global object visible in the browser.
|
||
adapter.browserShim = edgeShim;
|
||
commonShim.shimCreateObjectURL(window);
|
||
|
||
edgeShim.shimGetUserMedia(window);
|
||
edgeShim.shimPeerConnection(window);
|
||
edgeShim.shimReplaceTrack(window);
|
||
|
||
// the edge shim implements the full RTCIceCandidate object.
|
||
break;
|
||
case 'safari':
|
||
if (!safariShim || !options.shimSafari) {
|
||
logging('Safari shim is not included in this adapter release.');
|
||
return adapter;
|
||
}
|
||
logging('adapter.js shimming safari.');
|
||
// Export to the adapter global object visible in the browser.
|
||
adapter.browserShim = safariShim;
|
||
commonShim.shimCreateObjectURL(window);
|
||
|
||
safariShim.shimRTCIceServerUrls(window);
|
||
safariShim.shimCallbacksAPI(window);
|
||
safariShim.shimLocalStreamsAPI(window);
|
||
safariShim.shimRemoteStreamsAPI(window);
|
||
safariShim.shimTrackEventTransceiver(window);
|
||
safariShim.shimGetUserMedia(window);
|
||
safariShim.shimCreateOfferLegacy(window);
|
||
|
||
commonShim.shimRTCIceCandidate(window);
|
||
break;
|
||
default:
|
||
logging('Unsupported browser!');
|
||
break;
|
||
}
|
||
|
||
return adapter;
|
||
};
|
||
|
||
},{"./chrome/chrome_shim":5,"./common_shim":7,"./edge/edge_shim":8,"./firefox/firefox_shim":10,"./safari/safari_shim":12,"./utils":13}],5:[function(require,module,exports){
|
||
|
||
/*
|
||
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
'use strict';
|
||
var utils = require('../utils.js');
|
||
var logging = utils.log;
|
||
|
||
var chromeShim = {
|
||
shimMediaStream: function(window) {
|
||
window.MediaStream = window.MediaStream || window.webkitMediaStream;
|
||
},
|
||
|
||
shimOnTrack: function(window) {
|
||
if (typeof window === 'object' && window.RTCPeerConnection && !('ontrack' in
|
||
window.RTCPeerConnection.prototype)) {
|
||
Object.defineProperty(window.RTCPeerConnection.prototype, 'ontrack', {
|
||
get: function() {
|
||
return this._ontrack;
|
||
},
|
||
set: function(f) {
|
||
if (this._ontrack) {
|
||
this.removeEventListener('track', this._ontrack);
|
||
}
|
||
this.addEventListener('track', this._ontrack = f);
|
||
}
|
||
});
|
||
var origSetRemoteDescription =
|
||
window.RTCPeerConnection.prototype.setRemoteDescription;
|
||
window.RTCPeerConnection.prototype.setRemoteDescription = function() {
|
||
var pc = this;
|
||
if (!pc._ontrackpoly) {
|
||
pc._ontrackpoly = function(e) {
|
||
// onaddstream does not fire when a track is added to an existing
|
||
// stream. But stream.onaddtrack is implemented so we use that.
|
||
e.stream.addEventListener('addtrack', function(te) {
|
||
var receiver;
|
||
if (window.RTCPeerConnection.prototype.getReceivers) {
|
||
receiver = pc.getReceivers().find(function(r) {
|
||
return r.track && r.track.id === te.track.id;
|
||
});
|
||
} else {
|
||
receiver = {track: te.track};
|
||
}
|
||
|
||
var event = new Event('track');
|
||
event.track = te.track;
|
||
event.receiver = receiver;
|
||
event.transceiver = {receiver: receiver};
|
||
event.streams = [e.stream];
|
||
pc.dispatchEvent(event);
|
||
});
|
||
e.stream.getTracks().forEach(function(track) {
|
||
var receiver;
|
||
if (window.RTCPeerConnection.prototype.getReceivers) {
|
||
receiver = pc.getReceivers().find(function(r) {
|
||
return r.track && r.track.id === track.id;
|
||
});
|
||
} else {
|
||
receiver = {track: track};
|
||
}
|
||
var event = new Event('track');
|
||
event.track = track;
|
||
event.receiver = receiver;
|
||
event.transceiver = {receiver: receiver};
|
||
event.streams = [e.stream];
|
||
pc.dispatchEvent(event);
|
||
});
|
||
};
|
||
pc.addEventListener('addstream', pc._ontrackpoly);
|
||
}
|
||
return origSetRemoteDescription.apply(pc, arguments);
|
||
};
|
||
}
|
||
},
|
||
|
||
shimGetSendersWithDtmf: function(window) {
|
||
// Overrides addTrack/removeTrack, depends on shimAddTrackRemoveTrack.
|
||
if (typeof window === 'object' && window.RTCPeerConnection &&
|
||
!('getSenders' in window.RTCPeerConnection.prototype) &&
|
||
'createDTMFSender' in window.RTCPeerConnection.prototype) {
|
||
var shimSenderWithDtmf = function(pc, track) {
|
||
return {
|
||
track: track,
|
||
get dtmf() {
|
||
if (this._dtmf === undefined) {
|
||
if (track.kind === 'audio') {
|
||
this._dtmf = pc.createDTMFSender(track);
|
||
} else {
|
||
this._dtmf = null;
|
||
}
|
||
}
|
||
return this._dtmf;
|
||
},
|
||
_pc: pc
|
||
};
|
||
};
|
||
|
||
// augment addTrack when getSenders is not available.
|
||
if (!window.RTCPeerConnection.prototype.getSenders) {
|
||
window.RTCPeerConnection.prototype.getSenders = function() {
|
||
this._senders = this._senders || [];
|
||
return this._senders.slice(); // return a copy of the internal state.
|
||
};
|
||
var origAddTrack = window.RTCPeerConnection.prototype.addTrack;
|
||
window.RTCPeerConnection.prototype.addTrack = function(track, stream) {
|
||
var pc = this;
|
||
var sender = origAddTrack.apply(pc, arguments);
|
||
if (!sender) {
|
||
sender = shimSenderWithDtmf(pc, track);
|
||
pc._senders.push(sender);
|
||
}
|
||
return sender;
|
||
};
|
||
|
||
var origRemoveTrack = window.RTCPeerConnection.prototype.removeTrack;
|
||
window.RTCPeerConnection.prototype.removeTrack = function(sender) {
|
||
var pc = this;
|
||
origRemoveTrack.apply(pc, arguments);
|
||
var idx = pc._senders.indexOf(sender);
|
||
if (idx !== -1) {
|
||
pc._senders.splice(idx, 1);
|
||
}
|
||
};
|
||
}
|
||
var origAddStream = window.RTCPeerConnection.prototype.addStream;
|
||
window.RTCPeerConnection.prototype.addStream = function(stream) {
|
||
var pc = this;
|
||
pc._senders = pc._senders || [];
|
||
origAddStream.apply(pc, [stream]);
|
||
stream.getTracks().forEach(function(track) {
|
||
pc._senders.push(shimSenderWithDtmf(pc, track));
|
||
});
|
||
};
|
||
|
||
var origRemoveStream = window.RTCPeerConnection.prototype.removeStream;
|
||
window.RTCPeerConnection.prototype.removeStream = function(stream) {
|
||
var pc = this;
|
||
pc._senders = pc._senders || [];
|
||
origRemoveStream.apply(pc, [stream]);
|
||
|
||
stream.getTracks().forEach(function(track) {
|
||
var sender = pc._senders.find(function(s) {
|
||
return s.track === track;
|
||
});
|
||
if (sender) {
|
||
pc._senders.splice(pc._senders.indexOf(sender), 1); // remove sender
|
||
}
|
||
});
|
||
};
|
||
} else if (typeof window === 'object' && window.RTCPeerConnection &&
|
||
'getSenders' in window.RTCPeerConnection.prototype &&
|
||
'createDTMFSender' in window.RTCPeerConnection.prototype &&
|
||
window.RTCRtpSender &&
|
||
!('dtmf' in window.RTCRtpSender.prototype)) {
|
||
var origGetSenders = window.RTCPeerConnection.prototype.getSenders;
|
||
window.RTCPeerConnection.prototype.getSenders = function() {
|
||
var pc = this;
|
||
var senders = origGetSenders.apply(pc, []);
|
||
senders.forEach(function(sender) {
|
||
sender._pc = pc;
|
||
});
|
||
return senders;
|
||
};
|
||
|
||
Object.defineProperty(window.RTCRtpSender.prototype, 'dtmf', {
|
||
get: function() {
|
||
if (this._dtmf === undefined) {
|
||
if (this.track.kind === 'audio') {
|
||
this._dtmf = this._pc.createDTMFSender(this.track);
|
||
} else {
|
||
this._dtmf = null;
|
||
}
|
||
}
|
||
return this._dtmf;
|
||
}
|
||
});
|
||
}
|
||
},
|
||
|
||
shimSourceObject: function(window) {
|
||
var URL = window && window.URL;
|
||
|
||
if (typeof window === 'object') {
|
||
if (window.HTMLMediaElement &&
|
||
!('srcObject' in window.HTMLMediaElement.prototype)) {
|
||
// Shim the srcObject property, once, when HTMLMediaElement is found.
|
||
Object.defineProperty(window.HTMLMediaElement.prototype, 'srcObject', {
|
||
get: function() {
|
||
return this._srcObject;
|
||
},
|
||
set: function(stream) {
|
||
var self = this;
|
||
// Use _srcObject as a private property for this shim
|
||
this._srcObject = stream;
|
||
if (this.src) {
|
||
URL.revokeObjectURL(this.src);
|
||
}
|
||
|
||
if (!stream) {
|
||
this.src = '';
|
||
return undefined;
|
||
}
|
||
this.src = URL.createObjectURL(stream);
|
||
// We need to recreate the blob url when a track is added or
|
||
// removed. Doing it manually since we want to avoid a recursion.
|
||
stream.addEventListener('addtrack', function() {
|
||
if (self.src) {
|
||
URL.revokeObjectURL(self.src);
|
||
}
|
||
self.src = URL.createObjectURL(stream);
|
||
});
|
||
stream.addEventListener('removetrack', function() {
|
||
if (self.src) {
|
||
URL.revokeObjectURL(self.src);
|
||
}
|
||
self.src = URL.createObjectURL(stream);
|
||
});
|
||
}
|
||
});
|
||
}
|
||
}
|
||
},
|
||
|
||
shimAddTrackRemoveTrack: function(window) {
|
||
var browserDetails = utils.detectBrowser(window);
|
||
// shim addTrack and removeTrack.
|
||
if (window.RTCPeerConnection.prototype.addTrack &&
|
||
browserDetails.version >= 63) {
|
||
return;
|
||
}
|
||
|
||
// also shim pc.getLocalStreams when addTrack is shimmed
|
||
// to return the original streams.
|
||
var origGetLocalStreams = window.RTCPeerConnection.prototype
|
||
.getLocalStreams;
|
||
window.RTCPeerConnection.prototype.getLocalStreams = function() {
|
||
var self = this;
|
||
var nativeStreams = origGetLocalStreams.apply(this);
|
||
self._reverseStreams = self._reverseStreams || {};
|
||
return nativeStreams.map(function(stream) {
|
||
return self._reverseStreams[stream.id];
|
||
});
|
||
};
|
||
|
||
var origAddStream = window.RTCPeerConnection.prototype.addStream;
|
||
window.RTCPeerConnection.prototype.addStream = function(stream) {
|
||
var pc = this;
|
||
pc._streams = pc._streams || {};
|
||
pc._reverseStreams = pc._reverseStreams || {};
|
||
|
||
stream.getTracks().forEach(function(track) {
|
||
var alreadyExists = pc.getSenders().find(function(s) {
|
||
return s.track === track;
|
||
});
|
||
if (alreadyExists) {
|
||
throw new DOMException('Track already exists.',
|
||
'InvalidAccessError');
|
||
}
|
||
});
|
||
// Add identity mapping for consistency with addTrack.
|
||
// Unless this is being used with a stream from addTrack.
|
||
if (!pc._reverseStreams[stream.id]) {
|
||
var newStream = new window.MediaStream(stream.getTracks());
|
||
pc._streams[stream.id] = newStream;
|
||
pc._reverseStreams[newStream.id] = stream;
|
||
stream = newStream;
|
||
}
|
||
origAddStream.apply(pc, [stream]);
|
||
};
|
||
|
||
var origRemoveStream = window.RTCPeerConnection.prototype.removeStream;
|
||
window.RTCPeerConnection.prototype.removeStream = function(stream) {
|
||
var pc = this;
|
||
pc._streams = pc._streams || {};
|
||
pc._reverseStreams = pc._reverseStreams || {};
|
||
|
||
origRemoveStream.apply(pc, [(pc._streams[stream.id] || stream)]);
|
||
delete pc._reverseStreams[(pc._streams[stream.id] ?
|
||
pc._streams[stream.id].id : stream.id)];
|
||
delete pc._streams[stream.id];
|
||
};
|
||
|
||
window.RTCPeerConnection.prototype.addTrack = function(track, stream) {
|
||
var pc = this;
|
||
if (pc.signalingState === 'closed') {
|
||
throw new DOMException(
|
||
'The RTCPeerConnection\'s signalingState is \'closed\'.',
|
||
'InvalidStateError');
|
||
}
|
||
var streams = [].slice.call(arguments, 1);
|
||
if (streams.length !== 1 ||
|
||
!streams[0].getTracks().find(function(t) {
|
||
return t === track;
|
||
})) {
|
||
// this is not fully correct but all we can manage without
|
||
// [[associated MediaStreams]] internal slot.
|
||
throw new DOMException(
|
||
'The adapter.js addTrack polyfill only supports a single ' +
|
||
' stream which is associated with the specified track.',
|
||
'NotSupportedError');
|
||
}
|
||
|
||
var alreadyExists = pc.getSenders().find(function(s) {
|
||
return s.track === track;
|
||
});
|
||
if (alreadyExists) {
|
||
throw new DOMException('Track already exists.',
|
||
'InvalidAccessError');
|
||
}
|
||
|
||
pc._streams = pc._streams || {};
|
||
pc._reverseStreams = pc._reverseStreams || {};
|
||
var oldStream = pc._streams[stream.id];
|
||
if (oldStream) {
|
||
// this is using odd Chrome behaviour, use with caution:
|
||
// https://bugs.chromium.org/p/webrtc/issues/detail?id=7815
|
||
// Note: we rely on the high-level addTrack/dtmf shim to
|
||
// create the sender with a dtmf sender.
|
||
oldStream.addTrack(track);
|
||
|
||
// Trigger ONN async.
|
||
Promise.resolve().then(function() {
|
||
pc.dispatchEvent(new Event('negotiationneeded'));
|
||
});
|
||
} else {
|
||
var newStream = new window.MediaStream([track]);
|
||
pc._streams[stream.id] = newStream;
|
||
pc._reverseStreams[newStream.id] = stream;
|
||
pc.addStream(newStream);
|
||
}
|
||
return pc.getSenders().find(function(s) {
|
||
return s.track === track;
|
||
});
|
||
};
|
||
|
||
// replace the internal stream id with the external one and
|
||
// vice versa.
|
||
function replaceInternalStreamId(pc, description) {
|
||
var sdp = description.sdp;
|
||
Object.keys(pc._reverseStreams || []).forEach(function(internalId) {
|
||
var externalStream = pc._reverseStreams[internalId];
|
||
var internalStream = pc._streams[externalStream.id];
|
||
sdp = sdp.replace(new RegExp(internalStream.id, 'g'),
|
||
externalStream.id);
|
||
});
|
||
return new RTCSessionDescription({
|
||
type: description.type,
|
||
sdp: sdp
|
||
});
|
||
}
|
||
function replaceExternalStreamId(pc, description) {
|
||
var sdp = description.sdp;
|
||
Object.keys(pc._reverseStreams || []).forEach(function(internalId) {
|
||
var externalStream = pc._reverseStreams[internalId];
|
||
var internalStream = pc._streams[externalStream.id];
|
||
sdp = sdp.replace(new RegExp(externalStream.id, 'g'),
|
||
internalStream.id);
|
||
});
|
||
return new RTCSessionDescription({
|
||
type: description.type,
|
||
sdp: sdp
|
||
});
|
||
}
|
||
['createOffer', 'createAnswer'].forEach(function(method) {
|
||
var nativeMethod = window.RTCPeerConnection.prototype[method];
|
||
window.RTCPeerConnection.prototype[method] = function() {
|
||
var pc = this;
|
||
var args = arguments;
|
||
var isLegacyCall = arguments.length &&
|
||
typeof arguments[0] === 'function';
|
||
if (isLegacyCall) {
|
||
return nativeMethod.apply(pc, [
|
||
function(description) {
|
||
var desc = replaceInternalStreamId(pc, description);
|
||
args[0].apply(null, [desc]);
|
||
},
|
||
function(err) {
|
||
if (args[1]) {
|
||
args[1].apply(null, err);
|
||
}
|
||
}, arguments[2]
|
||
]);
|
||
}
|
||
return nativeMethod.apply(pc, arguments)
|
||
.then(function(description) {
|
||
return replaceInternalStreamId(pc, description);
|
||
});
|
||
};
|
||
});
|
||
|
||
var origSetLocalDescription =
|
||
window.RTCPeerConnection.prototype.setLocalDescription;
|
||
window.RTCPeerConnection.prototype.setLocalDescription = function() {
|
||
var pc = this;
|
||
if (!arguments.length || !arguments[0].type) {
|
||
return origSetLocalDescription.apply(pc, arguments);
|
||
}
|
||
arguments[0] = replaceExternalStreamId(pc, arguments[0]);
|
||
return origSetLocalDescription.apply(pc, arguments);
|
||
};
|
||
|
||
// TODO: mangle getStats: https://w3c.github.io/webrtc-stats/#dom-rtcmediastreamstats-streamidentifier
|
||
|
||
var origLocalDescription = Object.getOwnPropertyDescriptor(
|
||
window.RTCPeerConnection.prototype, 'localDescription');
|
||
Object.defineProperty(window.RTCPeerConnection.prototype,
|
||
'localDescription', {
|
||
get: function() {
|
||
var pc = this;
|
||
var description = origLocalDescription.get.apply(this);
|
||
if (description.type === '') {
|
||
return description;
|
||
}
|
||
return replaceInternalStreamId(pc, description);
|
||
}
|
||
});
|
||
|
||
window.RTCPeerConnection.prototype.removeTrack = function(sender) {
|
||
var pc = this;
|
||
if (pc.signalingState === 'closed') {
|
||
throw new DOMException(
|
||
'The RTCPeerConnection\'s signalingState is \'closed\'.',
|
||
'InvalidStateError');
|
||
}
|
||
// We can not yet check for sender instanceof RTCRtpSender
|
||
// since we shim RTPSender. So we check if sender._pc is set.
|
||
if (!sender._pc) {
|
||
throw new DOMException('Argument 1 of RTCPeerConnection.removeTrack ' +
|
||
'does not implement interface RTCRtpSender.', 'TypeError');
|
||
}
|
||
var isLocal = sender._pc === pc;
|
||
if (!isLocal) {
|
||
throw new DOMException('Sender was not created by this connection.',
|
||
'InvalidAccessError');
|
||
}
|
||
|
||
// Search for the native stream the senders track belongs to.
|
||
pc._streams = pc._streams || {};
|
||
var stream;
|
||
Object.keys(pc._streams).forEach(function(streamid) {
|
||
var hasTrack = pc._streams[streamid].getTracks().find(function(track) {
|
||
return sender.track === track;
|
||
});
|
||
if (hasTrack) {
|
||
stream = pc._streams[streamid];
|
||
}
|
||
});
|
||
|
||
if (stream) {
|
||
if (stream.getTracks().length === 1) {
|
||
// if this is the last track of the stream, remove the stream. This
|
||
// takes care of any shimmed _senders.
|
||
pc.removeStream(pc._reverseStreams[stream.id]);
|
||
} else {
|
||
// relying on the same odd chrome behaviour as above.
|
||
stream.removeTrack(sender.track);
|
||
}
|
||
pc.dispatchEvent(new Event('negotiationneeded'));
|
||
}
|
||
};
|
||
},
|
||
|
||
shimPeerConnection: function(window) {
|
||
var browserDetails = utils.detectBrowser(window);
|
||
|
||
// The RTCPeerConnection object.
|
||
if (!window.RTCPeerConnection) {
|
||
window.RTCPeerConnection = function(pcConfig, pcConstraints) {
|
||
// Translate iceTransportPolicy to iceTransports,
|
||
// see https://code.google.com/p/webrtc/issues/detail?id=4869
|
||
// this was fixed in M56 along with unprefixing RTCPeerConnection.
|
||
logging('PeerConnection');
|
||
if (pcConfig && pcConfig.iceTransportPolicy) {
|
||
pcConfig.iceTransports = pcConfig.iceTransportPolicy;
|
||
}
|
||
|
||
return new window.webkitRTCPeerConnection(pcConfig, pcConstraints);
|
||
};
|
||
window.RTCPeerConnection.prototype =
|
||
window.webkitRTCPeerConnection.prototype;
|
||
// wrap static methods. Currently just generateCertificate.
|
||
if (window.webkitRTCPeerConnection.generateCertificate) {
|
||
Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
|
||
get: function() {
|
||
return window.webkitRTCPeerConnection.generateCertificate;
|
||
}
|
||
});
|
||
}
|
||
} else {
|
||
// migrate from non-spec RTCIceServer.url to RTCIceServer.urls
|
||
var OrigPeerConnection = window.RTCPeerConnection;
|
||
window.RTCPeerConnection = function(pcConfig, pcConstraints) {
|
||
if (pcConfig && pcConfig.iceServers) {
|
||
var newIceServers = [];
|
||
for (var i = 0; i < pcConfig.iceServers.length; i++) {
|
||
var server = pcConfig.iceServers[i];
|
||
if (!server.hasOwnProperty('urls') &&
|
||
server.hasOwnProperty('url')) {
|
||
utils.deprecated('RTCIceServer.url', 'RTCIceServer.urls');
|
||
server = JSON.parse(JSON.stringify(server));
|
||
server.urls = server.url;
|
||
newIceServers.push(server);
|
||
} else {
|
||
newIceServers.push(pcConfig.iceServers[i]);
|
||
}
|
||
}
|
||
pcConfig.iceServers = newIceServers;
|
||
}
|
||
return new OrigPeerConnection(pcConfig, pcConstraints);
|
||
};
|
||
window.RTCPeerConnection.prototype = OrigPeerConnection.prototype;
|
||
// wrap static methods. Currently just generateCertificate.
|
||
Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
|
||
get: function() {
|
||
return OrigPeerConnection.generateCertificate;
|
||
}
|
||
});
|
||
}
|
||
|
||
var origGetStats = window.RTCPeerConnection.prototype.getStats;
|
||
window.RTCPeerConnection.prototype.getStats = function(selector,
|
||
successCallback, errorCallback) {
|
||
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.apply(this, arguments);
|
||
}
|
||
|
||
// When spec-style getStats is supported, return those when called with
|
||
// either no arguments or the selector argument is null.
|
||
if (origGetStats.length === 0 && (arguments.length === 0 ||
|
||
typeof arguments[0] !== 'function')) {
|
||
return origGetStats.apply(this, []);
|
||
}
|
||
|
||
var fixChromeStats_ = function(response) {
|
||
var standardReport = {};
|
||
var reports = response.result();
|
||
reports.forEach(function(report) {
|
||
var standardStats = {
|
||
id: report.id,
|
||
timestamp: report.timestamp,
|
||
type: {
|
||
localcandidate: 'local-candidate',
|
||
remotecandidate: 'remote-candidate'
|
||
}[report.type] || report.type
|
||
};
|
||
report.names().forEach(function(name) {
|
||
standardStats[name] = report.stat(name);
|
||
});
|
||
standardReport[standardStats.id] = standardStats;
|
||
});
|
||
|
||
return standardReport;
|
||
};
|
||
|
||
// shim getStats with maplike support
|
||
var makeMapStats = function(stats) {
|
||
return new Map(Object.keys(stats).map(function(key) {
|
||
return [key, stats[key]];
|
||
}));
|
||
};
|
||
|
||
if (arguments.length >= 2) {
|
||
var successCallbackWrapper_ = function(response) {
|
||
args[1](makeMapStats(fixChromeStats_(response)));
|
||
};
|
||
|
||
return origGetStats.apply(this, [successCallbackWrapper_,
|
||
arguments[0]]);
|
||
}
|
||
|
||
// promise-support
|
||
return new Promise(function(resolve, reject) {
|
||
origGetStats.apply(self, [
|
||
function(response) {
|
||
resolve(makeMapStats(fixChromeStats_(response)));
|
||
}, reject]);
|
||
}).then(successCallback, errorCallback);
|
||
};
|
||
|
||
// add promise support -- natively available in Chrome 51
|
||
if (browserDetails.version < 51) {
|
||
['setLocalDescription', 'setRemoteDescription', 'addIceCandidate']
|
||
.forEach(function(method) {
|
||
var nativeMethod = window.RTCPeerConnection.prototype[method];
|
||
window.RTCPeerConnection.prototype[method] = function() {
|
||
var args = arguments;
|
||
var self = this;
|
||
var promise = new Promise(function(resolve, reject) {
|
||
nativeMethod.apply(self, [args[0], resolve, reject]);
|
||
});
|
||
if (args.length < 2) {
|
||
return promise;
|
||
}
|
||
return promise.then(function() {
|
||
args[1].apply(null, []);
|
||
},
|
||
function(err) {
|
||
if (args.length >= 3) {
|
||
args[2].apply(null, [err]);
|
||
}
|
||
});
|
||
};
|
||
});
|
||
}
|
||
|
||
// promise support for createOffer and createAnswer. Available (without
|
||
// bugs) since M52: crbug/619289
|
||
if (browserDetails.version < 52) {
|
||
['createOffer', 'createAnswer'].forEach(function(method) {
|
||
var nativeMethod = window.RTCPeerConnection.prototype[method];
|
||
window.RTCPeerConnection.prototype[method] = function() {
|
||
var 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]);
|
||
});
|
||
}
|
||
return nativeMethod.apply(this, arguments);
|
||
};
|
||
});
|
||
}
|
||
|
||
// shim implicit creation of RTCSessionDescription/RTCIceCandidate
|
||
['setLocalDescription', 'setRemoteDescription', 'addIceCandidate']
|
||
.forEach(function(method) {
|
||
var nativeMethod = window.RTCPeerConnection.prototype[method];
|
||
window.RTCPeerConnection.prototype[method] = function() {
|
||
arguments[0] = new ((method === 'addIceCandidate') ?
|
||
window.RTCIceCandidate :
|
||
window.RTCSessionDescription)(arguments[0]);
|
||
return nativeMethod.apply(this, arguments);
|
||
};
|
||
});
|
||
|
||
// support for addIceCandidate(null or undefined)
|
||
var nativeAddIceCandidate =
|
||
window.RTCPeerConnection.prototype.addIceCandidate;
|
||
window.RTCPeerConnection.prototype.addIceCandidate = function() {
|
||
if (!arguments[0]) {
|
||
if (arguments[1]) {
|
||
arguments[1].apply(null);
|
||
}
|
||
return Promise.resolve();
|
||
}
|
||
return nativeAddIceCandidate.apply(this, arguments);
|
||
};
|
||
}
|
||
};
|
||
|
||
|
||
// Expose public methods.
|
||
module.exports = {
|
||
shimMediaStream: chromeShim.shimMediaStream,
|
||
shimOnTrack: chromeShim.shimOnTrack,
|
||
shimAddTrackRemoveTrack: chromeShim.shimAddTrackRemoveTrack,
|
||
shimGetSendersWithDtmf: chromeShim.shimGetSendersWithDtmf,
|
||
shimSourceObject: chromeShim.shimSourceObject,
|
||
shimPeerConnection: chromeShim.shimPeerConnection,
|
||
shimGetUserMedia: require('./getusermedia')
|
||
};
|
||
|
||
},{"../utils.js":13,"./getusermedia":6}],6:[function(require,module,exports){
|
||
/*
|
||
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
'use strict';
|
||
var utils = require('../utils.js');
|
||
var logging = utils.log;
|
||
|
||
// Expose public methods.
|
||
module.exports = function(window) {
|
||
var browserDetails = utils.detectBrowser(window);
|
||
var navigator = window && window.navigator;
|
||
|
||
var constraintsToChrome_ = function(c) {
|
||
if (typeof c !== 'object' || c.mandatory || c.optional) {
|
||
return c;
|
||
}
|
||
var cc = {};
|
||
Object.keys(c).forEach(function(key) {
|
||
if (key === 'require' || key === 'advanced' || key === 'mediaSource') {
|
||
return;
|
||
}
|
||
var r = (typeof c[key] === 'object') ? c[key] : {ideal: c[key]};
|
||
if (r.exact !== undefined && typeof r.exact === 'number') {
|
||
r.min = r.max = r.exact;
|
||
}
|
||
var oldname_ = function(prefix, name) {
|
||
if (prefix) {
|
||
return prefix + name.charAt(0).toUpperCase() + name.slice(1);
|
||
}
|
||
return (name === 'deviceId') ? 'sourceId' : name;
|
||
};
|
||
if (r.ideal !== undefined) {
|
||
cc.optional = cc.optional || [];
|
||
var oc = {};
|
||
if (typeof r.ideal === 'number') {
|
||
oc[oldname_('min', key)] = r.ideal;
|
||
cc.optional.push(oc);
|
||
oc = {};
|
||
oc[oldname_('max', key)] = r.ideal;
|
||
cc.optional.push(oc);
|
||
} else {
|
||
oc[oldname_('', key)] = r.ideal;
|
||
cc.optional.push(oc);
|
||
}
|
||
}
|
||
if (r.exact !== undefined && typeof r.exact !== 'number') {
|
||
cc.mandatory = cc.mandatory || {};
|
||
cc.mandatory[oldname_('', key)] = r.exact;
|
||
} else {
|
||
['min', 'max'].forEach(function(mix) {
|
||
if (r[mix] !== undefined) {
|
||
cc.mandatory = cc.mandatory || {};
|
||
cc.mandatory[oldname_(mix, key)] = r[mix];
|
||
}
|
||
});
|
||
}
|
||
});
|
||
if (c.advanced) {
|
||
cc.optional = (cc.optional || []).concat(c.advanced);
|
||
}
|
||
return cc;
|
||
};
|
||
|
||
var shimConstraints_ = function(constraints, func) {
|
||
constraints = JSON.parse(JSON.stringify(constraints));
|
||
if (constraints && typeof constraints.audio === 'object') {
|
||
var remap = function(obj, a, b) {
|
||
if (a in obj && !(b in obj)) {
|
||
obj[b] = obj[a];
|
||
delete obj[a];
|
||
}
|
||
};
|
||
constraints = JSON.parse(JSON.stringify(constraints));
|
||
remap(constraints.audio, 'autoGainControl', 'googAutoGainControl');
|
||
remap(constraints.audio, 'noiseSuppression', 'googNoiseSuppression');
|
||
constraints.audio = constraintsToChrome_(constraints.audio);
|
||
}
|
||
if (constraints && typeof constraints.video === 'object') {
|
||
// Shim facingMode for mobile & surface pro.
|
||
var face = constraints.video.facingMode;
|
||
face = face && ((typeof face === 'object') ? face : {ideal: face});
|
||
var getSupportedFacingModeLies = browserDetails.version < 66;
|
||
|
||
if ((face && (face.exact === 'user' || face.exact === 'environment' ||
|
||
face.ideal === 'user' || face.ideal === 'environment')) &&
|
||
!(navigator.mediaDevices.getSupportedConstraints &&
|
||
navigator.mediaDevices.getSupportedConstraints().facingMode &&
|
||
!getSupportedFacingModeLies)) {
|
||
delete constraints.video.facingMode;
|
||
var matches;
|
||
if (face.exact === 'environment' || face.ideal === 'environment') {
|
||
matches = ['back', 'rear'];
|
||
} else if (face.exact === 'user' || face.ideal === 'user') {
|
||
matches = ['front'];
|
||
}
|
||
if (matches) {
|
||
// Look for matches in label, or use last cam for back (typical).
|
||
return navigator.mediaDevices.enumerateDevices()
|
||
.then(function(devices) {
|
||
devices = devices.filter(function(d) {
|
||
return d.kind === 'videoinput';
|
||
});
|
||
var dev = devices.find(function(d) {
|
||
return matches.some(function(match) {
|
||
return d.label.toLowerCase().indexOf(match) !== -1;
|
||
});
|
||
});
|
||
if (!dev && devices.length && matches.indexOf('back') !== -1) {
|
||
dev = devices[devices.length - 1]; // more likely the back cam
|
||
}
|
||
if (dev) {
|
||
constraints.video.deviceId = face.exact ? {exact: dev.deviceId} :
|
||
{ideal: dev.deviceId};
|
||
}
|
||
constraints.video = constraintsToChrome_(constraints.video);
|
||
logging('chrome: ' + JSON.stringify(constraints));
|
||
return func(constraints);
|
||
});
|
||
}
|
||
}
|
||
constraints.video = constraintsToChrome_(constraints.video);
|
||
}
|
||
logging('chrome: ' + JSON.stringify(constraints));
|
||
return func(constraints);
|
||
};
|
||
|
||
var shimError_ = function(e) {
|
||
return {
|
||
name: {
|
||
PermissionDeniedError: 'NotAllowedError',
|
||
InvalidStateError: 'NotReadableError',
|
||
DevicesNotFoundError: 'NotFoundError',
|
||
ConstraintNotSatisfiedError: 'OverconstrainedError',
|
||
TrackStartError: 'NotReadableError',
|
||
MediaDeviceFailedDueToShutdown: 'NotReadableError',
|
||
MediaDeviceKillSwitchOn: 'NotReadableError'
|
||
}[e.name] || e.name,
|
||
message: e.message,
|
||
constraint: e.constraintName,
|
||
toString: function() {
|
||
return this.name + (this.message && ': ') + this.message;
|
||
}
|
||
};
|
||
};
|
||
|
||
var getUserMedia_ = function(constraints, onSuccess, onError) {
|
||
shimConstraints_(constraints, function(c) {
|
||
navigator.webkitGetUserMedia(c, onSuccess, function(e) {
|
||
if (onError) {
|
||
onError(shimError_(e));
|
||
}
|
||
});
|
||
});
|
||
};
|
||
|
||
navigator.getUserMedia = getUserMedia_;
|
||
|
||
// Returns the result of getUserMedia as a Promise.
|
||
var getUserMediaPromise_ = function(constraints) {
|
||
return new Promise(function(resolve, reject) {
|
||
navigator.getUserMedia(constraints, resolve, reject);
|
||
});
|
||
};
|
||
|
||
if (!navigator.mediaDevices) {
|
||
navigator.mediaDevices = {
|
||
getUserMedia: getUserMediaPromise_,
|
||
enumerateDevices: function() {
|
||
return new Promise(function(resolve) {
|
||
var kinds = {audio: 'audioinput', video: 'videoinput'};
|
||
return window.MediaStreamTrack.getSources(function(devices) {
|
||
resolve(devices.map(function(device) {
|
||
return {label: device.label,
|
||
kind: kinds[device.kind],
|
||
deviceId: device.id,
|
||
groupId: ''};
|
||
}));
|
||
});
|
||
});
|
||
},
|
||
getSupportedConstraints: function() {
|
||
return {
|
||
deviceId: true, echoCancellation: true, facingMode: true,
|
||
frameRate: true, height: true, width: true
|
||
};
|
||
}
|
||
};
|
||
}
|
||
|
||
// A shim for getUserMedia method on the mediaDevices object.
|
||
// TODO(KaptenJansson) remove once implemented in Chrome stable.
|
||
if (!navigator.mediaDevices.getUserMedia) {
|
||
navigator.mediaDevices.getUserMedia = function(constraints) {
|
||
return getUserMediaPromise_(constraints);
|
||
};
|
||
} else {
|
||
// Even though Chrome 45 has navigator.mediaDevices and a getUserMedia
|
||
// function which returns a Promise, it does not accept spec-style
|
||
// constraints.
|
||
var origGetUserMedia = navigator.mediaDevices.getUserMedia.
|
||
bind(navigator.mediaDevices);
|
||
navigator.mediaDevices.getUserMedia = function(cs) {
|
||
return shimConstraints_(cs, function(c) {
|
||
return origGetUserMedia(c).then(function(stream) {
|
||
if (c.audio && !stream.getAudioTracks().length ||
|
||
c.video && !stream.getVideoTracks().length) {
|
||
stream.getTracks().forEach(function(track) {
|
||
track.stop();
|
||
});
|
||
throw new DOMException('', 'NotFoundError');
|
||
}
|
||
return stream;
|
||
}, function(e) {
|
||
return Promise.reject(shimError_(e));
|
||
});
|
||
});
|
||
};
|
||
}
|
||
|
||
// Dummy devicechange event methods.
|
||
// TODO(KaptenJansson) remove once implemented in Chrome stable.
|
||
if (typeof navigator.mediaDevices.addEventListener === 'undefined') {
|
||
navigator.mediaDevices.addEventListener = function() {
|
||
logging('Dummy mediaDevices.addEventListener called.');
|
||
};
|
||
}
|
||
if (typeof navigator.mediaDevices.removeEventListener === 'undefined') {
|
||
navigator.mediaDevices.removeEventListener = function() {
|
||
logging('Dummy mediaDevices.removeEventListener called.');
|
||
};
|
||
}
|
||
};
|
||
|
||
},{"../utils.js":13}],7:[function(require,module,exports){
|
||
/*
|
||
* Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
'use strict';
|
||
|
||
var SDPUtils = require('sdp');
|
||
var utils = require('./utils');
|
||
|
||
// Wraps the peerconnection event eventNameToWrap in a function
|
||
// which returns the modified event object.
|
||
function wrapPeerConnectionEvent(window, eventNameToWrap, wrapper) {
|
||
if (!window.RTCPeerConnection) {
|
||
return;
|
||
}
|
||
var proto = window.RTCPeerConnection.prototype;
|
||
var nativeAddEventListener = proto.addEventListener;
|
||
proto.addEventListener = function(nativeEventName, cb) {
|
||
if (nativeEventName !== eventNameToWrap) {
|
||
return nativeAddEventListener.apply(this, arguments);
|
||
}
|
||
var wrappedCallback = function(e) {
|
||
cb(wrapper(e));
|
||
};
|
||
this._eventMap = this._eventMap || {};
|
||
this._eventMap[cb] = wrappedCallback;
|
||
return nativeAddEventListener.apply(this, [nativeEventName,
|
||
wrappedCallback]);
|
||
};
|
||
|
||
var nativeRemoveEventListener = proto.removeEventListener;
|
||
proto.removeEventListener = function(nativeEventName, cb) {
|
||
if (nativeEventName !== eventNameToWrap || !this._eventMap
|
||
|| !this._eventMap[cb]) {
|
||
return nativeRemoveEventListener.apply(this, arguments);
|
||
}
|
||
var unwrappedCb = this._eventMap[cb];
|
||
delete this._eventMap[cb];
|
||
return nativeRemoveEventListener.apply(this, [nativeEventName,
|
||
unwrappedCb]);
|
||
};
|
||
|
||
Object.defineProperty(proto, 'on' + eventNameToWrap, {
|
||
get: function() {
|
||
return this['_on' + eventNameToWrap];
|
||
},
|
||
set: function(cb) {
|
||
if (this['_on' + eventNameToWrap]) {
|
||
this.removeEventListener(eventNameToWrap,
|
||
this['_on' + eventNameToWrap]);
|
||
delete this['_on' + eventNameToWrap];
|
||
}
|
||
if (cb) {
|
||
this.addEventListener(eventNameToWrap,
|
||
this['_on' + eventNameToWrap] = cb);
|
||
}
|
||
}
|
||
});
|
||
}
|
||
|
||
module.exports = {
|
||
shimRTCIceCandidate: function(window) {
|
||
// foundation is arbitrarily chosen as an indicator for full support for
|
||
// https://w3c.github.io/webrtc-pc/#rtcicecandidate-interface
|
||
if (window.RTCIceCandidate && 'foundation' in
|
||
window.RTCIceCandidate.prototype) {
|
||
return;
|
||
}
|
||
|
||
var NativeRTCIceCandidate = window.RTCIceCandidate;
|
||
window.RTCIceCandidate = function(args) {
|
||
// Remove the a= which shouldn't be part of the candidate string.
|
||
if (typeof args === 'object' && args.candidate &&
|
||
args.candidate.indexOf('a=') === 0) {
|
||
args = JSON.parse(JSON.stringify(args));
|
||
args.candidate = args.candidate.substr(2);
|
||
}
|
||
|
||
// Augment the native candidate with the parsed fields.
|
||
var nativeCandidate = new NativeRTCIceCandidate(args);
|
||
var parsedCandidate = SDPUtils.parseCandidate(args.candidate);
|
||
var augmentedCandidate = Object.assign(nativeCandidate,
|
||
parsedCandidate);
|
||
|
||
// Add a serializer that does not serialize the extra attributes.
|
||
augmentedCandidate.toJSON = function() {
|
||
return {
|
||
candidate: augmentedCandidate.candidate,
|
||
sdpMid: augmentedCandidate.sdpMid,
|
||
sdpMLineIndex: augmentedCandidate.sdpMLineIndex,
|
||
usernameFragment: augmentedCandidate.usernameFragment,
|
||
};
|
||
};
|
||
return augmentedCandidate;
|
||
};
|
||
|
||
// Hook up the augmented candidate in onicecandidate and
|
||
// addEventListener('icecandidate', ...)
|
||
wrapPeerConnectionEvent(window, 'icecandidate', function(e) {
|
||
if (e.candidate) {
|
||
Object.defineProperty(e, 'candidate', {
|
||
value: new window.RTCIceCandidate(e.candidate),
|
||
writable: 'false'
|
||
});
|
||
}
|
||
return e;
|
||
});
|
||
},
|
||
|
||
// shimCreateObjectURL must be called before shimSourceObject to avoid loop.
|
||
|
||
shimCreateObjectURL: function(window) {
|
||
var URL = window && window.URL;
|
||
|
||
if (!(typeof window === 'object' && window.HTMLMediaElement &&
|
||
'srcObject' in window.HTMLMediaElement.prototype &&
|
||
URL.createObjectURL && URL.revokeObjectURL)) {
|
||
// Only shim CreateObjectURL using srcObject if srcObject exists.
|
||
return undefined;
|
||
}
|
||
|
||
var nativeCreateObjectURL = URL.createObjectURL.bind(URL);
|
||
var nativeRevokeObjectURL = URL.revokeObjectURL.bind(URL);
|
||
var streams = new Map(), newId = 0;
|
||
|
||
URL.createObjectURL = function(stream) {
|
||
if ('getTracks' in stream) {
|
||
var url = 'polyblob:' + (++newId);
|
||
streams.set(url, stream);
|
||
utils.deprecated('URL.createObjectURL(stream)',
|
||
'elem.srcObject = stream');
|
||
return url;
|
||
}
|
||
return nativeCreateObjectURL(stream);
|
||
};
|
||
URL.revokeObjectURL = function(url) {
|
||
nativeRevokeObjectURL(url);
|
||
streams.delete(url);
|
||
};
|
||
|
||
var dsc = Object.getOwnPropertyDescriptor(window.HTMLMediaElement.prototype,
|
||
'src');
|
||
Object.defineProperty(window.HTMLMediaElement.prototype, 'src', {
|
||
get: function() {
|
||
return dsc.get.apply(this);
|
||
},
|
||
set: function(url) {
|
||
this.srcObject = streams.get(url) || null;
|
||
return dsc.set.apply(this, [url]);
|
||
}
|
||
});
|
||
|
||
var nativeSetAttribute = window.HTMLMediaElement.prototype.setAttribute;
|
||
window.HTMLMediaElement.prototype.setAttribute = function() {
|
||
if (arguments.length === 2 &&
|
||
('' + arguments[0]).toLowerCase() === 'src') {
|
||
this.srcObject = streams.get(arguments[1]) || null;
|
||
}
|
||
return nativeSetAttribute.apply(this, arguments);
|
||
};
|
||
}
|
||
};
|
||
|
||
},{"./utils":13,"sdp":2}],8:[function(require,module,exports){
|
||
/*
|
||
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
'use strict';
|
||
|
||
var utils = require('../utils');
|
||
var shimRTCPeerConnection = require('rtcpeerconnection-shim');
|
||
|
||
module.exports = {
|
||
shimGetUserMedia: require('./getusermedia'),
|
||
shimPeerConnection: function(window) {
|
||
var browserDetails = utils.detectBrowser(window);
|
||
|
||
if (window.RTCIceGatherer) {
|
||
// ORTC defines an RTCIceCandidate object but no constructor.
|
||
// Not implemented in Edge.
|
||
if (!window.RTCIceCandidate) {
|
||
window.RTCIceCandidate = function(args) {
|
||
return args;
|
||
};
|
||
}
|
||
// ORTC does not have a session description object but
|
||
// other browsers (i.e. Chrome) that will support both PC and ORTC
|
||
// in the future might have this defined already.
|
||
if (!window.RTCSessionDescription) {
|
||
window.RTCSessionDescription = function(args) {
|
||
return args;
|
||
};
|
||
}
|
||
// this adds an additional event listener to MediaStrackTrack that signals
|
||
// when a tracks enabled property was changed. Workaround for a bug in
|
||
// addStream, see below. No longer required in 15025+
|
||
if (browserDetails.version < 15025) {
|
||
var origMSTEnabled = Object.getOwnPropertyDescriptor(
|
||
window.MediaStreamTrack.prototype, 'enabled');
|
||
Object.defineProperty(window.MediaStreamTrack.prototype, 'enabled', {
|
||
set: function(value) {
|
||
origMSTEnabled.set.call(this, value);
|
||
var ev = new Event('enabled');
|
||
ev.enabled = value;
|
||
this.dispatchEvent(ev);
|
||
}
|
||
});
|
||
}
|
||
}
|
||
|
||
// ORTC defines the DTMF sender a bit different.
|
||
// https://github.com/w3c/ortc/issues/714
|
||
if (window.RTCRtpSender && !('dtmf' in window.RTCRtpSender.prototype)) {
|
||
Object.defineProperty(window.RTCRtpSender.prototype, 'dtmf', {
|
||
get: function() {
|
||
if (this._dtmf === undefined) {
|
||
if (this.track.kind === 'audio') {
|
||
this._dtmf = new window.RTCDtmfSender(this);
|
||
} else if (this.track.kind === 'video') {
|
||
this._dtmf = null;
|
||
}
|
||
}
|
||
return this._dtmf;
|
||
}
|
||
});
|
||
}
|
||
|
||
window.RTCPeerConnection =
|
||
shimRTCPeerConnection(window, browserDetails.version);
|
||
},
|
||
shimReplaceTrack: function(window) {
|
||
// ORTC has replaceTrack -- https://github.com/w3c/ortc/issues/614
|
||
if (window.RTCRtpSender &&
|
||
!('replaceTrack' in window.RTCRtpSender.prototype)) {
|
||
window.RTCRtpSender.prototype.replaceTrack =
|
||
window.RTCRtpSender.prototype.setTrack;
|
||
}
|
||
}
|
||
};
|
||
|
||
},{"../utils":13,"./getusermedia":9,"rtcpeerconnection-shim":1}],9:[function(require,module,exports){
|
||
/*
|
||
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
'use strict';
|
||
|
||
// Expose public methods.
|
||
module.exports = function(window) {
|
||
var navigator = window && window.navigator;
|
||
|
||
var shimError_ = function(e) {
|
||
return {
|
||
name: {PermissionDeniedError: 'NotAllowedError'}[e.name] || e.name,
|
||
message: e.message,
|
||
constraint: e.constraint,
|
||
toString: function() {
|
||
return this.name;
|
||
}
|
||
};
|
||
};
|
||
|
||
// getUserMedia error shim.
|
||
var origGetUserMedia = navigator.mediaDevices.getUserMedia.
|
||
bind(navigator.mediaDevices);
|
||
navigator.mediaDevices.getUserMedia = function(c) {
|
||
return origGetUserMedia(c).catch(function(e) {
|
||
return Promise.reject(shimError_(e));
|
||
});
|
||
};
|
||
};
|
||
|
||
},{}],10:[function(require,module,exports){
|
||
/*
|
||
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
'use strict';
|
||
|
||
var utils = require('../utils');
|
||
|
||
var firefoxShim = {
|
||
shimOnTrack: function(window) {
|
||
if (typeof window === 'object' && window.RTCPeerConnection && !('ontrack' in
|
||
window.RTCPeerConnection.prototype)) {
|
||
Object.defineProperty(window.RTCPeerConnection.prototype, 'ontrack', {
|
||
get: function() {
|
||
return this._ontrack;
|
||
},
|
||
set: function(f) {
|
||
if (this._ontrack) {
|
||
this.removeEventListener('track', this._ontrack);
|
||
this.removeEventListener('addstream', this._ontrackpoly);
|
||
}
|
||
this.addEventListener('track', this._ontrack = f);
|
||
this.addEventListener('addstream', this._ontrackpoly = function(e) {
|
||
e.stream.getTracks().forEach(function(track) {
|
||
var event = new Event('track');
|
||
event.track = track;
|
||
event.receiver = {track: track};
|
||
event.transceiver = {receiver: event.receiver};
|
||
event.streams = [e.stream];
|
||
this.dispatchEvent(event);
|
||
}.bind(this));
|
||
}.bind(this));
|
||
}
|
||
});
|
||
}
|
||
if (typeof window === 'object' && window.RTCTrackEvent &&
|
||
('receiver' in window.RTCTrackEvent.prototype) &&
|
||
!('transceiver' in window.RTCTrackEvent.prototype)) {
|
||
Object.defineProperty(window.RTCTrackEvent.prototype, 'transceiver', {
|
||
get: function() {
|
||
return {receiver: this.receiver};
|
||
}
|
||
});
|
||
}
|
||
},
|
||
|
||
shimSourceObject: function(window) {
|
||
// Firefox has supported mozSrcObject since FF22, unprefixed in 42.
|
||
if (typeof window === 'object') {
|
||
if (window.HTMLMediaElement &&
|
||
!('srcObject' in window.HTMLMediaElement.prototype)) {
|
||
// Shim the srcObject property, once, when HTMLMediaElement is found.
|
||
Object.defineProperty(window.HTMLMediaElement.prototype, 'srcObject', {
|
||
get: function() {
|
||
return this.mozSrcObject;
|
||
},
|
||
set: function(stream) {
|
||
this.mozSrcObject = stream;
|
||
}
|
||
});
|
||
}
|
||
}
|
||
},
|
||
|
||
shimPeerConnection: function(window) {
|
||
var browserDetails = utils.detectBrowser(window);
|
||
|
||
if (typeof window !== 'object' || !(window.RTCPeerConnection ||
|
||
window.mozRTCPeerConnection)) {
|
||
return; // probably media.peerconnection.enabled=false in about:config
|
||
}
|
||
// The RTCPeerConnection object.
|
||
if (!window.RTCPeerConnection) {
|
||
window.RTCPeerConnection = function(pcConfig, pcConstraints) {
|
||
if (browserDetails.version < 38) {
|
||
// .urls is not supported in FF < 38.
|
||
// create RTCIceServers with a single url.
|
||
if (pcConfig && pcConfig.iceServers) {
|
||
var newIceServers = [];
|
||
for (var i = 0; i < pcConfig.iceServers.length; i++) {
|
||
var server = pcConfig.iceServers[i];
|
||
if (server.hasOwnProperty('urls')) {
|
||
for (var j = 0; j < server.urls.length; j++) {
|
||
var newServer = {
|
||
url: server.urls[j]
|
||
};
|
||
if (server.urls[j].indexOf('turn') === 0) {
|
||
newServer.username = server.username;
|
||
newServer.credential = server.credential;
|
||
}
|
||
newIceServers.push(newServer);
|
||
}
|
||
} else {
|
||
newIceServers.push(pcConfig.iceServers[i]);
|
||
}
|
||
}
|
||
pcConfig.iceServers = newIceServers;
|
||
}
|
||
}
|
||
return new window.mozRTCPeerConnection(pcConfig, pcConstraints);
|
||
};
|
||
window.RTCPeerConnection.prototype =
|
||
window.mozRTCPeerConnection.prototype;
|
||
|
||
// wrap static methods. Currently just generateCertificate.
|
||
if (window.mozRTCPeerConnection.generateCertificate) {
|
||
Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
|
||
get: function() {
|
||
return window.mozRTCPeerConnection.generateCertificate;
|
||
}
|
||
});
|
||
}
|
||
|
||
window.RTCSessionDescription = window.mozRTCSessionDescription;
|
||
window.RTCIceCandidate = window.mozRTCIceCandidate;
|
||
}
|
||
|
||
// shim away need for obsolete RTCIceCandidate/RTCSessionDescription.
|
||
['setLocalDescription', 'setRemoteDescription', 'addIceCandidate']
|
||
.forEach(function(method) {
|
||
var nativeMethod = window.RTCPeerConnection.prototype[method];
|
||
window.RTCPeerConnection.prototype[method] = function() {
|
||
arguments[0] = new ((method === 'addIceCandidate') ?
|
||
window.RTCIceCandidate :
|
||
window.RTCSessionDescription)(arguments[0]);
|
||
return nativeMethod.apply(this, arguments);
|
||
};
|
||
});
|
||
|
||
// support for addIceCandidate(null or undefined)
|
||
var nativeAddIceCandidate =
|
||
window.RTCPeerConnection.prototype.addIceCandidate;
|
||
window.RTCPeerConnection.prototype.addIceCandidate = function() {
|
||
if (!arguments[0]) {
|
||
if (arguments[1]) {
|
||
arguments[1].apply(null);
|
||
}
|
||
return Promise.resolve();
|
||
}
|
||
return nativeAddIceCandidate.apply(this, arguments);
|
||
};
|
||
|
||
// shim getStats with maplike support
|
||
var makeMapStats = function(stats) {
|
||
var map = new Map();
|
||
Object.keys(stats).forEach(function(key) {
|
||
map.set(key, stats[key]);
|
||
map[key] = stats[key];
|
||
});
|
||
return map;
|
||
};
|
||
|
||
var modernStatsTypes = {
|
||
inboundrtp: 'inbound-rtp',
|
||
outboundrtp: 'outbound-rtp',
|
||
candidatepair: 'candidate-pair',
|
||
localcandidate: 'local-candidate',
|
||
remotecandidate: 'remote-candidate'
|
||
};
|
||
|
||
var nativeGetStats = window.RTCPeerConnection.prototype.getStats;
|
||
window.RTCPeerConnection.prototype.getStats = function(
|
||
selector,
|
||
onSucc,
|
||
onErr
|
||
) {
|
||
return nativeGetStats.apply(this, [selector || null])
|
||
.then(function(stats) {
|
||
if (browserDetails.version < 48) {
|
||
stats = makeMapStats(stats);
|
||
}
|
||
if (browserDetails.version < 53 && !onSucc) {
|
||
// Shim only promise getStats with spec-hyphens in type names
|
||
// Leave callback version alone; misc old uses of forEach before Map
|
||
try {
|
||
stats.forEach(function(stat) {
|
||
stat.type = modernStatsTypes[stat.type] || stat.type;
|
||
});
|
||
} catch (e) {
|
||
if (e.name !== 'TypeError') {
|
||
throw e;
|
||
}
|
||
// Avoid TypeError: "type" is read-only, in old versions. 34-43ish
|
||
stats.forEach(function(stat, i) {
|
||
stats.set(i, Object.assign({}, stat, {
|
||
type: modernStatsTypes[stat.type] || stat.type
|
||
}));
|
||
});
|
||
}
|
||
}
|
||
return stats;
|
||
})
|
||
.then(onSucc, onErr);
|
||
};
|
||
}
|
||
};
|
||
|
||
// Expose public methods.
|
||
module.exports = {
|
||
shimOnTrack: firefoxShim.shimOnTrack,
|
||
shimSourceObject: firefoxShim.shimSourceObject,
|
||
shimPeerConnection: firefoxShim.shimPeerConnection,
|
||
shimGetUserMedia: require('./getusermedia')
|
||
};
|
||
|
||
},{"../utils":13,"./getusermedia":11}],11:[function(require,module,exports){
|
||
/*
|
||
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
'use strict';
|
||
|
||
var utils = require('../utils');
|
||
var logging = utils.log;
|
||
|
||
// Expose public methods.
|
||
module.exports = function(window) {
|
||
var browserDetails = utils.detectBrowser(window);
|
||
var navigator = window && window.navigator;
|
||
var MediaStreamTrack = window && window.MediaStreamTrack;
|
||
|
||
var shimError_ = function(e) {
|
||
return {
|
||
name: {
|
||
InternalError: 'NotReadableError',
|
||
NotSupportedError: 'TypeError',
|
||
PermissionDeniedError: 'NotAllowedError',
|
||
SecurityError: 'NotAllowedError'
|
||
}[e.name] || e.name,
|
||
message: {
|
||
'The operation is insecure.': 'The request is not allowed by the ' +
|
||
'user agent or the platform in the current context.'
|
||
}[e.message] || e.message,
|
||
constraint: e.constraint,
|
||
toString: function() {
|
||
return this.name + (this.message && ': ') + this.message;
|
||
}
|
||
};
|
||
};
|
||
|
||
// getUserMedia constraints shim.
|
||
var getUserMedia_ = function(constraints, onSuccess, onError) {
|
||
var constraintsToFF37_ = function(c) {
|
||
if (typeof c !== 'object' || c.require) {
|
||
return c;
|
||
}
|
||
var require = [];
|
||
Object.keys(c).forEach(function(key) {
|
||
if (key === 'require' || key === 'advanced' || key === 'mediaSource') {
|
||
return;
|
||
}
|
||
var r = c[key] = (typeof c[key] === 'object') ?
|
||
c[key] : {ideal: c[key]};
|
||
if (r.min !== undefined ||
|
||
r.max !== undefined || r.exact !== undefined) {
|
||
require.push(key);
|
||
}
|
||
if (r.exact !== undefined) {
|
||
if (typeof r.exact === 'number') {
|
||
r. min = r.max = r.exact;
|
||
} else {
|
||
c[key] = r.exact;
|
||
}
|
||
delete r.exact;
|
||
}
|
||
if (r.ideal !== undefined) {
|
||
c.advanced = c.advanced || [];
|
||
var oc = {};
|
||
if (typeof r.ideal === 'number') {
|
||
oc[key] = {min: r.ideal, max: r.ideal};
|
||
} else {
|
||
oc[key] = r.ideal;
|
||
}
|
||
c.advanced.push(oc);
|
||
delete r.ideal;
|
||
if (!Object.keys(r).length) {
|
||
delete c[key];
|
||
}
|
||
}
|
||
});
|
||
if (require.length) {
|
||
c.require = require;
|
||
}
|
||
return c;
|
||
};
|
||
constraints = JSON.parse(JSON.stringify(constraints));
|
||
if (browserDetails.version < 38) {
|
||
logging('spec: ' + JSON.stringify(constraints));
|
||
if (constraints.audio) {
|
||
constraints.audio = constraintsToFF37_(constraints.audio);
|
||
}
|
||
if (constraints.video) {
|
||
constraints.video = constraintsToFF37_(constraints.video);
|
||
}
|
||
logging('ff37: ' + JSON.stringify(constraints));
|
||
}
|
||
return navigator.mozGetUserMedia(constraints, onSuccess, function(e) {
|
||
onError(shimError_(e));
|
||
});
|
||
};
|
||
|
||
// Returns the result of getUserMedia as a Promise.
|
||
var getUserMediaPromise_ = function(constraints) {
|
||
return new Promise(function(resolve, reject) {
|
||
getUserMedia_(constraints, resolve, reject);
|
||
});
|
||
};
|
||
|
||
// Shim for mediaDevices on older versions.
|
||
if (!navigator.mediaDevices) {
|
||
navigator.mediaDevices = {getUserMedia: getUserMediaPromise_,
|
||
addEventListener: function() { },
|
||
removeEventListener: function() { }
|
||
};
|
||
}
|
||
navigator.mediaDevices.enumerateDevices =
|
||
navigator.mediaDevices.enumerateDevices || function() {
|
||
return new Promise(function(resolve) {
|
||
var infos = [
|
||
{kind: 'audioinput', deviceId: 'default', label: '', groupId: ''},
|
||
{kind: 'videoinput', deviceId: 'default', label: '', groupId: ''}
|
||
];
|
||
resolve(infos);
|
||
});
|
||
};
|
||
|
||
if (browserDetails.version < 41) {
|
||
// Work around http://bugzil.la/1169665
|
||
var orgEnumerateDevices =
|
||
navigator.mediaDevices.enumerateDevices.bind(navigator.mediaDevices);
|
||
navigator.mediaDevices.enumerateDevices = function() {
|
||
return orgEnumerateDevices().then(undefined, function(e) {
|
||
if (e.name === 'NotFoundError') {
|
||
return [];
|
||
}
|
||
throw e;
|
||
});
|
||
};
|
||
}
|
||
if (browserDetails.version < 49) {
|
||
var origGetUserMedia = navigator.mediaDevices.getUserMedia.
|
||
bind(navigator.mediaDevices);
|
||
navigator.mediaDevices.getUserMedia = function(c) {
|
||
return origGetUserMedia(c).then(function(stream) {
|
||
// Work around https://bugzil.la/802326
|
||
if (c.audio && !stream.getAudioTracks().length ||
|
||
c.video && !stream.getVideoTracks().length) {
|
||
stream.getTracks().forEach(function(track) {
|
||
track.stop();
|
||
});
|
||
throw new DOMException('The object can not be found here.',
|
||
'NotFoundError');
|
||
}
|
||
return stream;
|
||
}, function(e) {
|
||
return Promise.reject(shimError_(e));
|
||
});
|
||
};
|
||
}
|
||
if (!(browserDetails.version > 55 &&
|
||
'autoGainControl' in navigator.mediaDevices.getSupportedConstraints())) {
|
||
var remap = function(obj, a, b) {
|
||
if (a in obj && !(b in obj)) {
|
||
obj[b] = obj[a];
|
||
delete obj[a];
|
||
}
|
||
};
|
||
|
||
var nativeGetUserMedia = navigator.mediaDevices.getUserMedia.
|
||
bind(navigator.mediaDevices);
|
||
navigator.mediaDevices.getUserMedia = function(c) {
|
||
if (typeof c === 'object' && typeof c.audio === 'object') {
|
||
c = JSON.parse(JSON.stringify(c));
|
||
remap(c.audio, 'autoGainControl', 'mozAutoGainControl');
|
||
remap(c.audio, 'noiseSuppression', 'mozNoiseSuppression');
|
||
}
|
||
return nativeGetUserMedia(c);
|
||
};
|
||
|
||
if (MediaStreamTrack && MediaStreamTrack.prototype.getSettings) {
|
||
var nativeGetSettings = MediaStreamTrack.prototype.getSettings;
|
||
MediaStreamTrack.prototype.getSettings = function() {
|
||
var obj = nativeGetSettings.apply(this, arguments);
|
||
remap(obj, 'mozAutoGainControl', 'autoGainControl');
|
||
remap(obj, 'mozNoiseSuppression', 'noiseSuppression');
|
||
return obj;
|
||
};
|
||
}
|
||
|
||
if (MediaStreamTrack && MediaStreamTrack.prototype.applyConstraints) {
|
||
var nativeApplyConstraints = MediaStreamTrack.prototype.applyConstraints;
|
||
MediaStreamTrack.prototype.applyConstraints = function(c) {
|
||
if (this.kind === 'audio' && typeof c === 'object') {
|
||
c = JSON.parse(JSON.stringify(c));
|
||
remap(c, 'autoGainControl', 'mozAutoGainControl');
|
||
remap(c, 'noiseSuppression', 'mozNoiseSuppression');
|
||
}
|
||
return nativeApplyConstraints.apply(this, [c]);
|
||
};
|
||
}
|
||
}
|
||
navigator.getUserMedia = function(constraints, onSuccess, onError) {
|
||
if (browserDetails.version < 44) {
|
||
return getUserMedia_(constraints, onSuccess, onError);
|
||
}
|
||
// Replace Firefox 44+'s deprecation warning with unprefixed version.
|
||
utils.deprecated('navigator.getUserMedia',
|
||
'navigator.mediaDevices.getUserMedia');
|
||
navigator.mediaDevices.getUserMedia(constraints).then(onSuccess, onError);
|
||
};
|
||
};
|
||
|
||
},{"../utils":13}],12:[function(require,module,exports){
|
||
/*
|
||
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
'use strict';
|
||
var utils = require('../utils');
|
||
|
||
var safariShim = {
|
||
// TODO: DrAlex, should be here, double check against LayoutTests
|
||
|
||
// TODO: once the back-end for the mac port is done, add.
|
||
// TODO: check for webkitGTK+
|
||
// shimPeerConnection: function() { },
|
||
|
||
shimLocalStreamsAPI: function(window) {
|
||
if (typeof window !== 'object' || !window.RTCPeerConnection) {
|
||
return;
|
||
}
|
||
if (!('getLocalStreams' in window.RTCPeerConnection.prototype)) {
|
||
window.RTCPeerConnection.prototype.getLocalStreams = function() {
|
||
if (!this._localStreams) {
|
||
this._localStreams = [];
|
||
}
|
||
return this._localStreams;
|
||
};
|
||
}
|
||
if (!('getStreamById' in window.RTCPeerConnection.prototype)) {
|
||
window.RTCPeerConnection.prototype.getStreamById = function(id) {
|
||
var result = null;
|
||
if (this._localStreams) {
|
||
this._localStreams.forEach(function(stream) {
|
||
if (stream.id === id) {
|
||
result = stream;
|
||
}
|
||
});
|
||
}
|
||
if (this._remoteStreams) {
|
||
this._remoteStreams.forEach(function(stream) {
|
||
if (stream.id === id) {
|
||
result = stream;
|
||
}
|
||
});
|
||
}
|
||
return result;
|
||
};
|
||
}
|
||
if (!('addStream' in window.RTCPeerConnection.prototype)) {
|
||
var _addTrack = window.RTCPeerConnection.prototype.addTrack;
|
||
window.RTCPeerConnection.prototype.addStream = function(stream) {
|
||
if (!this._localStreams) {
|
||
this._localStreams = [];
|
||
}
|
||
if (this._localStreams.indexOf(stream) === -1) {
|
||
this._localStreams.push(stream);
|
||
}
|
||
var self = this;
|
||
stream.getTracks().forEach(function(track) {
|
||
_addTrack.call(self, track, stream);
|
||
});
|
||
};
|
||
|
||
window.RTCPeerConnection.prototype.addTrack = function(track, stream) {
|
||
if (stream) {
|
||
if (!this._localStreams) {
|
||
this._localStreams = [stream];
|
||
} else if (this._localStreams.indexOf(stream) === -1) {
|
||
this._localStreams.push(stream);
|
||
}
|
||
}
|
||
_addTrack.call(this, track, stream);
|
||
};
|
||
}
|
||
if (!('removeStream' in window.RTCPeerConnection.prototype)) {
|
||
window.RTCPeerConnection.prototype.removeStream = function(stream) {
|
||
if (!this._localStreams) {
|
||
this._localStreams = [];
|
||
}
|
||
var index = this._localStreams.indexOf(stream);
|
||
if (index === -1) {
|
||
return;
|
||
}
|
||
this._localStreams.splice(index, 1);
|
||
var self = this;
|
||
var tracks = stream.getTracks();
|
||
this.getSenders().forEach(function(sender) {
|
||
if (tracks.indexOf(sender.track) !== -1) {
|
||
self.removeTrack(sender);
|
||
}
|
||
});
|
||
};
|
||
}
|
||
},
|
||
shimRemoteStreamsAPI: function(window) {
|
||
if (typeof window !== 'object' || !window.RTCPeerConnection) {
|
||
return;
|
||
}
|
||
if (!('getRemoteStreams' in window.RTCPeerConnection.prototype)) {
|
||
window.RTCPeerConnection.prototype.getRemoteStreams = function() {
|
||
return this._remoteStreams ? this._remoteStreams : [];
|
||
};
|
||
}
|
||
if (!('onaddstream' in window.RTCPeerConnection.prototype)) {
|
||
Object.defineProperty(window.RTCPeerConnection.prototype, 'onaddstream', {
|
||
get: function() {
|
||
return this._onaddstream;
|
||
},
|
||
set: function(f) {
|
||
if (this._onaddstream) {
|
||
this.removeEventListener('addstream', this._onaddstream);
|
||
this.removeEventListener('track', this._onaddstreampoly);
|
||
}
|
||
this.addEventListener('addstream', this._onaddstream = f);
|
||
this.addEventListener('track', this._onaddstreampoly = function(e) {
|
||
var stream = e.streams[0];
|
||
if (!this._remoteStreams) {
|
||
this._remoteStreams = [];
|
||
}
|
||
if (this._remoteStreams.indexOf(stream) >= 0) {
|
||
return;
|
||
}
|
||
this._remoteStreams.push(stream);
|
||
var event = new Event('addstream');
|
||
event.stream = e.streams[0];
|
||
this.dispatchEvent(event);
|
||
}.bind(this));
|
||
}
|
||
});
|
||
}
|
||
},
|
||
shimCallbacksAPI: function(window) {
|
||
if (typeof window !== 'object' || !window.RTCPeerConnection) {
|
||
return;
|
||
}
|
||
var prototype = window.RTCPeerConnection.prototype;
|
||
var createOffer = prototype.createOffer;
|
||
var createAnswer = prototype.createAnswer;
|
||
var setLocalDescription = prototype.setLocalDescription;
|
||
var setRemoteDescription = prototype.setRemoteDescription;
|
||
var addIceCandidate = prototype.addIceCandidate;
|
||
|
||
prototype.createOffer = function(successCallback, failureCallback) {
|
||
var options = (arguments.length >= 2) ? arguments[2] : arguments[0];
|
||
var promise = createOffer.apply(this, [options]);
|
||
if (!failureCallback) {
|
||
return promise;
|
||
}
|
||
promise.then(successCallback, failureCallback);
|
||
return Promise.resolve();
|
||
};
|
||
|
||
prototype.createAnswer = function(successCallback, failureCallback) {
|
||
var options = (arguments.length >= 2) ? arguments[2] : arguments[0];
|
||
var promise = createAnswer.apply(this, [options]);
|
||
if (!failureCallback) {
|
||
return promise;
|
||
}
|
||
promise.then(successCallback, failureCallback);
|
||
return Promise.resolve();
|
||
};
|
||
|
||
var withCallback = function(description, successCallback, failureCallback) {
|
||
var promise = setLocalDescription.apply(this, [description]);
|
||
if (!failureCallback) {
|
||
return promise;
|
||
}
|
||
promise.then(successCallback, failureCallback);
|
||
return Promise.resolve();
|
||
};
|
||
prototype.setLocalDescription = withCallback;
|
||
|
||
withCallback = function(description, successCallback, failureCallback) {
|
||
var promise = setRemoteDescription.apply(this, [description]);
|
||
if (!failureCallback) {
|
||
return promise;
|
||
}
|
||
promise.then(successCallback, failureCallback);
|
||
return Promise.resolve();
|
||
};
|
||
prototype.setRemoteDescription = withCallback;
|
||
|
||
withCallback = function(candidate, successCallback, failureCallback) {
|
||
var promise = addIceCandidate.apply(this, [candidate]);
|
||
if (!failureCallback) {
|
||
return promise;
|
||
}
|
||
promise.then(successCallback, failureCallback);
|
||
return Promise.resolve();
|
||
};
|
||
prototype.addIceCandidate = withCallback;
|
||
},
|
||
shimGetUserMedia: function(window) {
|
||
var navigator = window && window.navigator;
|
||
|
||
if (!navigator.getUserMedia) {
|
||
if (navigator.webkitGetUserMedia) {
|
||
navigator.getUserMedia = navigator.webkitGetUserMedia.bind(navigator);
|
||
} else if (navigator.mediaDevices &&
|
||
navigator.mediaDevices.getUserMedia) {
|
||
navigator.getUserMedia = function(constraints, cb, errcb) {
|
||
navigator.mediaDevices.getUserMedia(constraints)
|
||
.then(cb, errcb);
|
||
}.bind(navigator);
|
||
}
|
||
}
|
||
},
|
||
shimRTCIceServerUrls: function(window) {
|
||
// migrate from non-spec RTCIceServer.url to RTCIceServer.urls
|
||
var OrigPeerConnection = window.RTCPeerConnection;
|
||
window.RTCPeerConnection = function(pcConfig, pcConstraints) {
|
||
if (pcConfig && pcConfig.iceServers) {
|
||
var newIceServers = [];
|
||
for (var i = 0; i < pcConfig.iceServers.length; i++) {
|
||
var server = pcConfig.iceServers[i];
|
||
if (!server.hasOwnProperty('urls') &&
|
||
server.hasOwnProperty('url')) {
|
||
utils.deprecated('RTCIceServer.url', 'RTCIceServer.urls');
|
||
server = JSON.parse(JSON.stringify(server));
|
||
server.urls = server.url;
|
||
delete server.url;
|
||
newIceServers.push(server);
|
||
} else {
|
||
newIceServers.push(pcConfig.iceServers[i]);
|
||
}
|
||
}
|
||
pcConfig.iceServers = newIceServers;
|
||
}
|
||
return new OrigPeerConnection(pcConfig, pcConstraints);
|
||
};
|
||
window.RTCPeerConnection.prototype = OrigPeerConnection.prototype;
|
||
// wrap static methods. Currently just generateCertificate.
|
||
if ('generateCertificate' in window.RTCPeerConnection) {
|
||
Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
|
||
get: function() {
|
||
return OrigPeerConnection.generateCertificate;
|
||
}
|
||
});
|
||
}
|
||
},
|
||
shimTrackEventTransceiver: function(window) {
|
||
// Add event.transceiver member over deprecated event.receiver
|
||
if (typeof window === 'object' && window.RTCPeerConnection &&
|
||
('receiver' in window.RTCTrackEvent.prototype) &&
|
||
// can't check 'transceiver' in window.RTCTrackEvent.prototype, as it is
|
||
// defined for some reason even when window.RTCTransceiver is not.
|
||
!window.RTCTransceiver) {
|
||
Object.defineProperty(window.RTCTrackEvent.prototype, 'transceiver', {
|
||
get: function() {
|
||
return {receiver: this.receiver};
|
||
}
|
||
});
|
||
}
|
||
},
|
||
|
||
shimCreateOfferLegacy: function(window) {
|
||
var origCreateOffer = window.RTCPeerConnection.prototype.createOffer;
|
||
window.RTCPeerConnection.prototype.createOffer = function(offerOptions) {
|
||
var pc = this;
|
||
if (offerOptions) {
|
||
var audioTransceiver = pc.getTransceivers().find(function(transceiver) {
|
||
return transceiver.sender.track &&
|
||
transceiver.sender.track.kind === 'audio';
|
||
});
|
||
if (offerOptions.offerToReceiveAudio === false && audioTransceiver) {
|
||
if (audioTransceiver.direction === 'sendrecv') {
|
||
audioTransceiver.setDirection('sendonly');
|
||
} else if (audioTransceiver.direction === 'recvonly') {
|
||
audioTransceiver.setDirection('inactive');
|
||
}
|
||
} else if (offerOptions.offerToReceiveAudio === true &&
|
||
!audioTransceiver) {
|
||
pc.addTransceiver('audio');
|
||
}
|
||
|
||
var videoTransceiver = pc.getTransceivers().find(function(transceiver) {
|
||
return transceiver.sender.track &&
|
||
transceiver.sender.track.kind === 'video';
|
||
});
|
||
if (offerOptions.offerToReceiveVideo === false && videoTransceiver) {
|
||
if (videoTransceiver.direction === 'sendrecv') {
|
||
videoTransceiver.setDirection('sendonly');
|
||
} else if (videoTransceiver.direction === 'recvonly') {
|
||
videoTransceiver.setDirection('inactive');
|
||
}
|
||
} else if (offerOptions.offerToReceiveVideo === true &&
|
||
!videoTransceiver) {
|
||
pc.addTransceiver('video');
|
||
}
|
||
}
|
||
return origCreateOffer.apply(pc, arguments);
|
||
};
|
||
}
|
||
};
|
||
|
||
// Expose public methods.
|
||
module.exports = {
|
||
shimCallbacksAPI: safariShim.shimCallbacksAPI,
|
||
shimLocalStreamsAPI: safariShim.shimLocalStreamsAPI,
|
||
shimRemoteStreamsAPI: safariShim.shimRemoteStreamsAPI,
|
||
shimGetUserMedia: safariShim.shimGetUserMedia,
|
||
shimRTCIceServerUrls: safariShim.shimRTCIceServerUrls,
|
||
shimTrackEventTransceiver: safariShim.shimTrackEventTransceiver,
|
||
shimCreateOfferLegacy: safariShim.shimCreateOfferLegacy
|
||
// TODO
|
||
// shimPeerConnection: safariShim.shimPeerConnection
|
||
};
|
||
|
||
},{"../utils":13}],13:[function(require,module,exports){
|
||
/*
|
||
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
||
*
|
||
* Use of this source code is governed by a BSD-style license
|
||
* that can be found in the LICENSE file in the root of the source
|
||
* tree.
|
||
*/
|
||
/* eslint-env node */
|
||
'use strict';
|
||
|
||
var logDisabled_ = true;
|
||
var deprecationWarnings_ = true;
|
||
|
||
// Utility methods.
|
||
var utils = {
|
||
disableLog: function(bool) {
|
||
if (typeof bool !== 'boolean') {
|
||
return new Error('Argument type: ' + typeof bool +
|
||
'. Please use a boolean.');
|
||
}
|
||
logDisabled_ = bool;
|
||
return (bool) ? 'adapter.js logging disabled' :
|
||
'adapter.js logging enabled';
|
||
},
|
||
|
||
/**
|
||
* Disable or enable deprecation warnings
|
||
* @param {!boolean} bool set to true to disable warnings.
|
||
*/
|
||
disableWarnings: function(bool) {
|
||
if (typeof bool !== 'boolean') {
|
||
return new Error('Argument type: ' + typeof bool +
|
||
'. Please use a boolean.');
|
||
}
|
||
deprecationWarnings_ = !bool;
|
||
return 'adapter.js deprecation warnings ' + (bool ? 'disabled' : 'enabled');
|
||
},
|
||
|
||
log: function() {
|
||
if (typeof window === 'object') {
|
||
if (logDisabled_) {
|
||
return;
|
||
}
|
||
if (typeof console !== 'undefined' && typeof console.log === 'function') {
|
||
console.log.apply(console, arguments);
|
||
}
|
||
}
|
||
},
|
||
|
||
/**
|
||
* Shows a deprecation warning suggesting the modern and spec-compatible API.
|
||
*/
|
||
deprecated: function(oldMethod, newMethod) {
|
||
if (!deprecationWarnings_) {
|
||
return;
|
||
}
|
||
console.warn(oldMethod + ' is deprecated, please use ' + newMethod +
|
||
' instead.');
|
||
},
|
||
|
||
/**
|
||
* Extract browser version out of the provided user agent string.
|
||
*
|
||
* @param {!string} uastring userAgent string.
|
||
* @param {!string} expr Regular expression used as match criteria.
|
||
* @param {!number} pos position in the version string to be returned.
|
||
* @return {!number} browser version.
|
||
*/
|
||
extractVersion: function(uastring, expr, pos) {
|
||
var match = uastring.match(expr);
|
||
return match && match.length >= pos && parseInt(match[pos], 10);
|
||
},
|
||
|
||
/**
|
||
* Browser detector.
|
||
*
|
||
* @return {object} result containing browser and version
|
||
* properties.
|
||
*/
|
||
detectBrowser: function(window) {
|
||
var navigator = window && window.navigator;
|
||
|
||
// Returned result object.
|
||
var result = {};
|
||
result.browser = null;
|
||
result.version = null;
|
||
|
||
// Fail early if it's not a browser
|
||
if (typeof window === 'undefined' || !window.navigator) {
|
||
result.browser = 'Not a browser.';
|
||
return result;
|
||
}
|
||
|
||
// Firefox.
|
||
if (navigator.mozGetUserMedia) {
|
||
result.browser = 'firefox';
|
||
result.version = this.extractVersion(navigator.userAgent,
|
||
/Firefox\/(\d+)\./, 1);
|
||
} else if (navigator.webkitGetUserMedia) {
|
||
// Chrome, Chromium, Webview, Opera, all use the chrome shim for now
|
||
if (window.webkitRTCPeerConnection) {
|
||
result.browser = 'chrome';
|
||
result.version = this.extractVersion(navigator.userAgent,
|
||
/Chrom(e|ium)\/(\d+)\./, 2);
|
||
} else { // Safari (in an unpublished version) or unknown webkit-based.
|
||
if (navigator.userAgent.match(/Version\/(\d+).(\d+)/)) {
|
||
result.browser = 'safari';
|
||
result.version = this.extractVersion(navigator.userAgent,
|
||
/AppleWebKit\/(\d+)\./, 1);
|
||
} else { // unknown webkit-based browser.
|
||
result.browser = 'Unsupported webkit-based browser ' +
|
||
'with GUM support but no WebRTC support.';
|
||
return result;
|
||
}
|
||
}
|
||
} else if (navigator.mediaDevices &&
|
||
navigator.userAgent.match(/Edge\/(\d+).(\d+)$/)) { // Edge.
|
||
result.browser = 'edge';
|
||
result.version = this.extractVersion(navigator.userAgent,
|
||
/Edge\/(\d+).(\d+)$/, 2);
|
||
} else if (navigator.mediaDevices &&
|
||
navigator.userAgent.match(/AppleWebKit\/(\d+)\./)) {
|
||
// Safari, with webkitGetUserMedia removed.
|
||
result.browser = 'safari';
|
||
result.version = this.extractVersion(navigator.userAgent,
|
||
/AppleWebKit\/(\d+)\./, 1);
|
||
} else { // Default fallthrough: not supported.
|
||
result.browser = 'Not a supported browser.';
|
||
return result;
|
||
}
|
||
|
||
return result;
|
||
},
|
||
|
||
};
|
||
|
||
// Export.
|
||
module.exports = {
|
||
log: utils.log,
|
||
deprecated: utils.deprecated,
|
||
disableLog: utils.disableLog,
|
||
disableWarnings: utils.disableWarnings,
|
||
extractVersion: utils.extractVersion,
|
||
shimCreateObjectURL: utils.shimCreateObjectURL,
|
||
detectBrowser: utils.detectBrowser.bind(utils)
|
||
};
|
||
|
||
},{}]},{},[3])(3)
|
||
}); |