(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';
-// SDP helpers.
-var SDPUtils = {};
+var SDPUtils = require('sdp');
-// 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);
-};
+function writeMediaSection(transceiver, caps, type, stream, dtlsRole) {
+ var sdp = SDPUtils.writeRtpDescription(transceiver.kind, caps);
-// The RTCP CNAME used by all peerconnections from the same JS.
-SDPUtils.localCName = SDPUtils.generateIdentifier();
+ // Map ICE parameters (ufrag, pwd) to SDP.
+ sdp += SDPUtils.writeIceParameters(
+ transceiver.iceGatherer.getLocalParameters());
-// 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';
- });
-};
+ // Map DTLS parameters to SDP.
+ sdp += SDPUtils.writeDtlsParameters(
+ transceiver.dtlsTransport.getLocalParameters(),
+ type === 'offer' ? 'actpass' : dtlsRole || 'active');
-// 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;
- });
-};
+ sdp += 'a=mid:' + transceiver.mid + '\r\n';
-// 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(' ');
+ 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 {
- parts = line.substring(10).split(' ');
+ sdp += 'a=inactive\r\n';
}
- 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]
- };
+ if (transceiver.rtpSender) {
+ // spec.
+ var msid = 'msid:' + stream.id + ' ' +
+ transceiver.rtpSender.track.id + '\r\n';
+ sdp += 'a=' + msid;
- for (var i = 8; i < parts.length; i += 2) {
- switch (parts[i]) {
- case 'raddr':
- candidate.relatedAddress = parts[i + 1];
- break;
- case 'rport':
- candidate.relatedPort = parseInt(parts[i + 1], 10);
- break;
- case 'tcptype':
- candidate.tcpType = parts[i + 1];
- break;
- default: // extension handling, in particular ufrag
- candidate[parts[i]] = parts[i + 1];
- break;
+ // 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';
}
}
- 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);
+ // 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 '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(' ');
+ return sdp;
}
-// 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
- };
+// 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;
- parts = parts[0].split('/');
+ if (validTurn) {
+ hasTurn = true;
+ return true;
+ }
+ return url.indexOf('stun:') === 0 && edgeVersion >= 14393 &&
+ url.indexOf('?transport=udp') === -1;
+ });
- 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;
-};
+ delete server.url;
+ server.urls = isString ? urls[0] : urls;
+ return !!urls.length;
+ }
+ return false;
+ });
+}
-// 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';
-};
+// Determines the intersection of local and remote capabilities.
+function getCommonCapabilities(localCapabilities, remoteCapabilities) {
+ var commonCapabilities = {
+ codecs: [],
+ headerExtensions: [],
+ fecMechanisms: []
+ };
-// 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]
+ 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];
+ }
+ }
};
-};
-// 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';
-};
+ 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();
+ };
-// 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;
-};
+ 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);
-// 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;
-};
+ // 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;
+ }
+ }
+ });
-// 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;
-};
+ 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;
+ }
+ }
+ });
-// 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;
-};
+ // FIXME: fecMechanisms
+ return commonCapabilities;
+}
-// 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);
+// 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;
}
-SDPUtils.parseFingerprint = function(line) {
- var parts = line.substr(14).split(' ');
- return {
- algorithm: parts[0].toLowerCase(), // algorithm is case-sensitive in Edge.
- value: parts[1]
+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.
};
-};
-// 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)
+ RTCPeerConnection.prototype._emitGatheringStateChange = function() {
+ var event = new Event('icegatheringstatechange');
+ this.dispatchEvent(event);
+ if (typeof this.onicegatheringstatechange === 'function') {
+ this.onicegatheringstatechange(event);
+ }
};
-};
-// 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)
+ RTCPeerConnection.prototype.getConfiguration = function() {
+ return this._config;
};
- 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';
-};
+ RTCPeerConnection.prototype.getLocalStreams = function() {
+ return this.localStreams;
+ };
-// Parses the SDP media section and returns RTCRtpParameters.
-SDPUtils.parseRtpParameters = function(mediaSection) {
- var description = {
- codecs: [],
- headerExtensions: [],
- fecMechanisms: [],
- rtcp: []
+ RTCPeerConnection.prototype.getRemoteStreams = function() {
+ return this.remoteStreams;
};
- 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 = '';
+ // 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;
+ };
- // 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;
+ 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);
}
- 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';
+ this._maybeFireNegotiationNeeded();
- // 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 (this.localStreams.indexOf(stream) === -1) {
+ this.localStreams.push(stream);
}
- });
- 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;
-};
+ transceiver.track = track;
+ transceiver.stream = stream;
+ transceiver.rtpSender = new window.RTCRtpSender(track,
+ transceiver.dtlsTransport);
+ return transceiver.rtpSender;
+ };
-// 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;
+ 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);
+ });
+ }
+ };
- // 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;
+ RTCPeerConnection.prototype.removeStream = function(stream) {
+ var idx = this.localStreams.indexOf(stream);
+ if (idx > -1) {
+ this.localStreams.splice(idx, 1);
+ this._maybeFireNegotiationNeeded();
+ }
+ };
- 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);
+ RTCPeerConnection.prototype.getSenders = function() {
+ return this.transceivers.filter(function(transceiver) {
+ return !!transceiver.rtpSender;
+ })
+ .map(function(transceiver) {
+ return transceiver.rtpSender;
});
- });
- 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
+ RTCPeerConnection.prototype.getReceivers = function() {
+ return this.transceivers.filter(function(transceiver) {
+ return !!transceiver.rtpReceiver;
+ })
+ .map(function(transceiver) {
+ return transceiver.rtpReceiver;
});
- }
+ };
- // 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;
+
+ 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();
}
- encodingParameters.forEach(function(params) {
- params.maxBitrate = bandwidth;
+ var iceGatherer = new window.RTCIceGatherer({
+ iceServers: this._config.iceServers,
+ gatherPolicy: this._config.iceTransportPolicy
});
- }
- return encodingParameters;
-};
+ Object.defineProperty(iceGatherer, 'state',
+ {value: 'new', writable: true}
+ );
-// parses http://draft.ortc.org/#rtcrtcpparameters*
-SDPUtils.parseRtcpParameters = function(mediaSection) {
- var rtcpParameters = {};
+ 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;
+ };
- 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;
- }
+ // 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};
- // 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);
-};
+ 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);
+ }
-// Write boilder plate for start of SDP
-// sessId argument is optional - if not supplied it will
-// be generated randomly
-SDPUtils.writeSessionBoilerplate = function(sessId) {
- var sessionId;
- if (sessId) {
- sessionId = sessId;
- } else {
- sessionId = SDPUtils.generateSessionId();
- }
- // FIXME: sess-id should be an NTP timestamp.
- return 'v=0\r\n' +
- 'o=thisisadapterortc ' + sessionId + ' 2 IN IP4 127.0.0.1\r\n' +
- 's=-\r\n' +
- 't=0 0\r\n';
-};
+ // 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';
+ });
-SDPUtils.writeMediaSection = function(transceiver, caps, type, stream) {
- var sdp = SDPUtils.writeRtpDescription(transceiver.kind, caps);
+ if (self.iceGatheringState !== 'gathering') {
+ self.iceGatheringState = 'gathering';
+ self._emitGatheringStateChange();
+ }
- // Map ICE parameters (ufrag, pwd) to SDP.
- sdp += SDPUtils.writeIceParameters(
- transceiver.iceGatherer.getLocalParameters());
+ // 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();
+ }
+ };
- // Map DTLS parameters to SDP.
- sdp += SDPUtils.writeDtlsParameters(
- transceiver.dtlsTransport.getLocalParameters(),
- type === 'offer' ? 'actpass' : 'active');
+ // emit already gathered candidates.
+ window.setTimeout(function() {
+ candidates.forEach(function(candidate) {
+ var e = new Event('RTCIceGatherEvent');
+ e.candidate = candidate;
+ iceGatherer.onlocalcandidate(e);
+ });
+ }, 0);
+ };
- sdp += 'a=mid:' + transceiver.mid + '\r\n';
+ // Create ICE transport and DTLS transport.
+ RTCPeerConnection.prototype._createIceAndDtlsTransports = function() {
+ var self = this;
+ var iceTransport = new window.RTCIceTransport(null);
+ iceTransport.onicestatechange = function() {
+ self._updateConnectionState();
+ };
- 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';
- }
+ 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();
+ };
- if (transceiver.rtpSender) {
- // spec.
- var msid = 'msid:' + stream.id + ' ' +
- transceiver.rtpSender.track.id + '\r\n';
- sdp += 'a=' + msid;
+ return {
+ iceTransport: iceTransport,
+ dtlsTransport: dtlsTransport
+ };
+ };
- // 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';
+ // 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;
}
- }
- // 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;
-};
+ 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;
+ }
+ };
-// 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?
+ // 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 (sessionpart) {
- return SDPUtils.getDirection(sessionpart);
- }
- return 'sendrecv';
-};
+ 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);
+ }
+ };
-SDPUtils.getKind = function(mediaSection) {
- var lines = SDPUtils.splitLines(mediaSection);
- var mline = lines[0].split(' ');
- return mline[0].substr(2);
-};
+ RTCPeerConnection.prototype.setLocalDescription = function(description) {
+ var self = this;
+ var args = arguments;
-SDPUtils.isRejected = function(mediaSection) {
- return mediaSection.split(' ', 2)[1] === '0';
-};
+ 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);
+ });
+ }
-// Expose public methods.
-module.exports = SDPUtils;
+ 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;
+ });
-},{}],2:[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 */
+ 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;
-'use strict';
+ // treat bundle-only as not-rejected.
+ var rejected = SDPUtils.isRejected(mediaSection) &&
+ !SDPUtils.matchPrefix(mediaSection, 'a=bundle-only').length === 1;
-var adapterFactory = require('./adapter_factory.js');
-module.exports = adapterFactory({window: global.window});
+ if (!rejected && !transceiver.isDatachannel) {
+ var remoteIceParameters = SDPUtils.getIceParameters(
+ mediaSection, sessionpart);
+ var remoteDtlsParameters = SDPUtils.getDtlsParameters(
+ mediaSection, sessionpart);
+ if (isIceLite) {
+ remoteDtlsParameters.role = 'server';
+ }
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./adapter_factory.js":3}],3:[function(require,module,exports){
-/*
- * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
- *
- * Use of this source code is governed by a BSD-style license
- * that can be found in the LICENSE file in the root of the source
- * tree.
- */
- /* eslint-env node */
+ 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);
+ }
+ }
-'use strict';
+ // Calculate intersection of capabilities.
+ var params = getCommonCapabilities(localCapabilities,
+ remoteCapabilities);
-// Shimming starts here.
-module.exports = function(dependencies) {
- var window = dependencies && dependencies.window;
+ // Start the RTCRtpSender. The RTCRtpReceiver for this
+ // transceiver has already been started in setRemoteDescription.
+ self._transceive(transceiver,
+ params.codecs.length > 0,
+ false);
+ }
+ });
+ }
- // Utils.
- var utils = require('./utils');
- var logging = utils.log;
- var browserDetails = utils.detectBrowser(window);
+ 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 +
+ '"');
+ }
- // Export to the adapter global object visible in the browser.
- var adapter = {
- browserDetails: browserDetails,
- extractVersion: utils.extractVersion,
- disableLog: utils.disableLog,
- disableWarnings: utils.disableWarnings
+ // 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();
+ });
};
- // 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);
+ RTCPeerConnection.prototype.setRemoteDescription = function(description) {
+ var self = this;
+ var args = arguments;
- // 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;
+ 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);
+ });
+ }
- // Shim browser if found.
- switch (browserDetails.browser) {
- case 'chrome':
- if (!chromeShim || !chromeShim.shimPeerConnection) {
- 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;
+ 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;
+ }
- chromeShim.shimGetUserMedia(window);
- chromeShim.shimMediaStream(window);
- utils.shimCreateObjectURL(window);
- chromeShim.shimSourceObject(window);
- chromeShim.shimPeerConnection(window);
- chromeShim.shimOnTrack(window);
- chromeShim.shimGetSendersWithDtmf(window);
- break;
- case 'firefox':
- if (!firefoxShim || !firefoxShim.shimPeerConnection) {
- 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;
+ 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];
- firefoxShim.shimGetUserMedia(window);
- utils.shimCreateObjectURL(window);
- firefoxShim.shimSourceObject(window);
- firefoxShim.shimPeerConnection(window);
- firefoxShim.shimOnTrack(window);
- break;
- case 'edge':
- if (!edgeShim || !edgeShim.shimPeerConnection) {
- 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;
+ var direction = SDPUtils.getDirection(mediaSection, sessionpart);
+ var remoteMsid = SDPUtils.parseMsid(mediaSection);
- edgeShim.shimGetUserMedia(window);
- utils.shimCreateObjectURL(window);
- edgeShim.shimPeerConnection(window);
- edgeShim.shimReplaceTrack(window);
- break;
- case 'safari':
- if (!safariShim) {
- logging('Safari shim is not included in this adapter release.');
- return adapter;
+ 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;
}
- logging('adapter.js shimming safari.');
- // Export to the adapter global object visible in the browser.
- adapter.browserShim = safariShim;
- // shim window.URL.createObjectURL Safari (technical preview)
- utils.shimCreateObjectURL(window);
- safariShim.shimRTCIceServerUrls(window);
- safariShim.shimCallbacksAPI(window);
- safariShim.shimLocalStreamsAPI(window);
- safariShim.shimRemoteStreamsAPI(window);
- safariShim.shimGetUserMedia(window);
- break;
- default:
- logging('Unsupported browser!');
- break;
- }
- return adapter;
-};
+ var transceiver;
+ var iceGatherer;
+ var iceTransport;
+ var dtlsTransport;
+ var rtpReceiver;
+ var sendEncodingParameters;
+ var recvEncodingParameters;
+ var localCapabilities;
-},{"./chrome/chrome_shim":4,"./edge/edge_shim":6,"./firefox/firefox_shim":9,"./safari/safari_shim":11,"./utils":12}],4:[function(require,module,exports){
+ 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);
-/*
- * 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 rtcpParameters = SDPUtils.parseRtcpParameters(mediaSection);
-var chromeShim = {
- shimMediaStream: function(window) {
- window.MediaStream = window.MediaStream || window.webkitMediaStream;
- },
+ 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;
+ });
- 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) {
- var self = this;
- 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) {
- // 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 = self.getReceivers().find(function(r) {
- return r.track.id === te.track.id;
- });
- } else {
- receiver = {track: te.track};
- }
-
- var event = new Event('track');
- event.track = te.track;
- event.receiver = receiver;
- event.streams = [e.stream];
- self.dispatchEvent(event);
- });
- e.stream.getTracks().forEach(function(track) {
- var receiver;
- if (window.RTCPeerConnection.prototype.getReceivers) {
- receiver = self.getReceivers().find(function(r) {
- return r.track.id === track.id;
- });
- } else {
- receiver = {track: track};
- }
- var event = new Event('track');
- event.track = track;
- event.receiver = receiver;
- event.streams = [e.stream];
- this.dispatchEvent(event);
- }.bind(this));
- }.bind(this));
+ // 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;
- shimGetSendersWithDtmf: function(window) {
- if (typeof window === 'object' && window.RTCPeerConnection &&
- !('getSenders' in window.RTCPeerConnection.prototype) &&
- 'createDTMFSender' in window.RTCPeerConnection.prototype) {
- window.RTCPeerConnection.prototype.getSenders = function() {
- return this._senders || [];
- };
- var origAddStream = window.RTCPeerConnection.prototype.addStream;
- var origRemoveStream = window.RTCPeerConnection.prototype.removeStream;
+ if (!transceiver.iceGatherer) {
+ transceiver.iceGatherer = self._createIceGatherer(sdpMLineIndex,
+ usingBundle);
+ }
- if (!window.RTCPeerConnection.prototype.addTrack) {
- 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');
+ 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);
+ });
}
+ }
- pc._senders = pc._senders || [];
- var alreadyExists = pc._senders.find(function(t) {
- return t.track === track;
- });
- if (alreadyExists) {
- throw new DOMException('Track already exists.',
- 'InvalidAccessError');
- }
+ localCapabilities = window.RTCRtpReceiver.getCapabilities(kind);
- pc._streams = pc._streams || {};
- var oldStream = pc._streams[stream.id];
- if (oldStream) {
- oldStream.addTrack(track);
- pc.removeStream(oldStream);
- pc.addStream(oldStream);
- } else {
- var newStream = new window.MediaStream([track]);
- pc._streams[stream.id] = newStream;
- pc.addStream(newStream);
- }
+ // 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';
+ });
+ }
- var sender = {
- track: track,
- get dtmf() {
- if (this._dtmf === undefined) {
- if (track.kind === 'audio') {
- this._dtmf = pc.createDTMFSender(track);
- } else {
- this._dtmf = null;
- }
+ 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;
+ }
+ });
}
- return this._dtmf;
- }
- };
- pc._senders.push(sender);
- return sender;
- };
- }
- 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({
- track: track,
- get dtmf() {
- if (this._dtmf === undefined) {
- if (track.kind === 'audio') {
- this._dtmf = pc.createDTMFSender(track);
- } else {
- this._dtmf = null;
+ Object.defineProperty(track, 'id', {
+ get: function() {
+ return remoteMsid.track;
}
+ });
+ stream = streams[remoteMsid.stream];
+ } else {
+ if (!streams.default) {
+ streams.default = new window.MediaStream();
}
- return this._dtmf;
+ stream = streams.default;
}
- });
- });
- };
+ stream.addTrack(track);
+ receiverList.push([track, rtpReceiver, stream]);
+ }
+ }
- 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
+ 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);
+ });
}
- });
- };
- } 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;
- }
+ if (!usingBundle || sdpMLineIndex === 0) {
+ if (iceTransport.state === 'new') {
+ iceTransport.start(iceGatherer, remoteIceParameters,
+ 'controlling');
}
- return this._dtmf;
- },
- });
- }
- },
+ if (dtlsTransport.state === 'new') {
+ dtlsTransport.start(remoteDtlsParameters);
+ }
+ }
- shimSourceObject: function(window) {
- var URL = window && window.URL;
+ self._transceive(transceiver,
+ direction === 'sendrecv' || direction === 'recvonly',
+ direction === 'sendrecv' || direction === 'sendonly');
- 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 (rtpReceiver &&
+ (direction === 'sendrecv' || direction === 'sendonly')) {
+ track = rtpReceiver.track;
+ if (remoteMsid) {
+ if (!streams[remoteMsid.stream]) {
+ streams[remoteMsid.stream] = new window.MediaStream();
}
-
- if (!stream) {
- this.src = '';
- return undefined;
+ streams[remoteMsid.stream].addTrack(track);
+ receiverList.push([track, rtpReceiver, streams[remoteMsid.stream]]);
+ } else {
+ if (!streams.default) {
+ streams.default = new window.MediaStream();
}
- 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);
- });
+ streams.default.addTrack(track);
+ receiverList.push([track, rtpReceiver, streams.default]);
}
- });
+ } else {
+ // FIXME: actually the receiver should be created later.
+ delete transceiver.rtpReceiver;
+ }
}
- }
- },
+ });
- shimPeerConnection: function(window) {
- var browserDetails = utils.detectBrowser(window);
+ if (this._dtlsRole === undefined) {
+ this._dtlsRole = description.type === 'offer' ? 'active' : 'passive';
+ }
- // 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;
+ 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);
+ }
+ });
}
- 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;
+ 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);
+ }
+ });
});
}
- } 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')) {
- console.warn('RTCIceServer.url is deprecated! Use urls instead.');
- 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;
+ });
+
+ // 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({});
}
});
- }
-
- var origGetStats = window.RTCPeerConnection.prototype.getStats;
- window.RTCPeerConnection.prototype.getStats = function(selector,
- successCallback, errorCallback) {
- var self = this;
- var args = arguments;
+ }, 4000);
- // 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);
+ return new Promise(function(resolve) {
+ if (args.length > 1 && typeof args[1] === 'function') {
+ args[1].apply(null);
}
+ resolve();
+ });
+ };
- // 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, []);
+ 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');
+ };
- 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)));
- };
+ // 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);
+ }
+ };
- return origGetStats.apply(this, [successCallbackWrapper_,
- arguments[0]]);
+ // 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);
+ };
- // promise-support
- return new Promise(function(resolve, reject) {
- origGetStats.apply(self, [
- function(response) {
- resolve(makeMapStats(fixChromeStats_(response)));
- }, reject]);
- }).then(successCallback, errorCallback);
+ // 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;
- // 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]);
- }
- });
- };
- });
+ 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';
}
- // 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();
+ if (newState !== this.iceConnectionState) {
+ this.iceConnectionState = newState;
+ var event = new Event('iceconnectionstatechange');
+ this.dispatchEvent(event);
+ if (typeof this.oniceconnectionstatechange === 'function') {
+ this.oniceconnectionstatechange(event);
}
- return nativeAddIceCandidate.apply(this, arguments);
- };
- }
-};
-
+ }
+ };
-// Expose public methods.
-module.exports = {
- shimMediaStream: chromeShim.shimMediaStream,
- shimOnTrack: chromeShim.shimOnTrack,
- shimGetSendersWithDtmf: chromeShim.shimGetSendersWithDtmf,
- shimSourceObject: chromeShim.shimSourceObject,
- shimPeerConnection: chromeShim.shimPeerConnection,
- shimGetUserMedia: require('./getusermedia')
-};
+ RTCPeerConnection.prototype.createOffer = function() {
+ var self = this;
+ var args = arguments;
-},{"../utils.js":12,"./getusermedia":5}],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 offerOptions;
+ if (arguments.length === 1 && typeof arguments[0] !== 'function') {
+ offerOptions = arguments[0];
+ } else if (arguments.length === 3) {
+ offerOptions = arguments[2];
+ }
-// Expose public methods.
-module.exports = function(window) {
- var browserDetails = utils.detectBrowser(window);
- var navigator = window && window.navigator;
+ var numAudioTracks = this.transceivers.filter(function(t) {
+ return t.kind === 'audio';
+ }).length;
+ var numVideoTracks = this.transceivers.filter(function(t) {
+ return t.kind === 'video';
+ }).length;
- 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;
+ // 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.');
}
- 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);
+ if (offerOptions.offerToReceiveAudio !== undefined) {
+ if (offerOptions.offerToReceiveAudio === true) {
+ numAudioTracks = 1;
+ } else if (offerOptions.offerToReceiveAudio === false) {
+ numAudioTracks = 0;
} else {
- oc[oldname_('', key)] = r.ideal;
- cc.optional.push(oc);
+ numAudioTracks = offerOptions.offerToReceiveAudio;
}
}
- 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];
+ if (offerOptions.offerToReceiveVideo !== undefined) {
+ if (offerOptions.offerToReceiveVideo === true) {
+ numVideoTracks = 1;
+ } else if (offerOptions.offerToReceiveVideo === false) {
+ numVideoTracks = 0;
+ } else {
+ numVideoTracks = offerOptions.offerToReceiveVideo;
}
- };
- 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 < 61;
- 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'];
+ this.transceivers.forEach(function(transceiver) {
+ if (transceiver.kind === 'audio') {
+ numAudioTracks--;
+ if (numAudioTracks < 0) {
+ transceiver.wantReceive = false;
}
- 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);
- });
+ } else if (transceiver.kind === 'video') {
+ numVideoTracks--;
+ if (numVideoTracks < 0) {
+ transceiver.wantReceive = false;
}
}
- 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;
+ // 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 getUserMedia_ = function(constraints, onSuccess, onError) {
- shimConstraints_(constraints, function(c) {
- navigator.webkitGetUserMedia(c, onSuccess, function(e) {
- onError(shimError_(e));
- });
- });
- };
+ 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;
- navigator.getUserMedia = getUserMedia_;
+ if (!transceiver.iceGatherer) {
+ transceiver.iceGatherer = self._createIceGatherer(sdpMLineIndex,
+ self.usingBundle);
+ }
- // 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();
+ 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';
});
- throw new DOMException('', 'NotFoundError');
- }
- return stream;
- }, function(e) {
- return Promise.reject(shimError_(e));
- });
+ }
+ 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';
+ }
});
- };
- }
-
- // 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":12}],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';
+ // 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
+ };
+ }
+ }
-var utils = require('../utils');
-var shimRTCPeerConnection = require('./rtcpeerconnection_shim');
+ if (transceiver.wantReceive) {
+ transceiver.rtpReceiver = new window.RTCRtpReceiver(
+ transceiver.dtlsTransport, kind);
+ }
-module.exports = {
- shimGetUserMedia: require('./getusermedia'),
- shimPeerConnection: function(window) {
- var browserDetails = utils.detectBrowser(window);
+ transceiver.localCapabilities = localCapabilities;
+ transceiver.sendEncodingParameters = sendEncodingParameters;
+ });
- 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);
- }
- });
- }
- }
- 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;
+ // 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';
-},{"../utils":12,"./getusermedia":7,"./rtcpeerconnection_shim":8}],7:[function(require,module,exports){
-/*
- * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
- *
- * Use of this source code is governed by a BSD-style license
- * that can be found in the LICENSE file in the root of the source
- * tree.
- */
- /* eslint-env node */
-'use strict';
+ this.transceivers.forEach(function(transceiver, sdpMLineIndex) {
+ sdp += writeMediaSection(transceiver, transceiver.localCapabilities,
+ 'offer', transceiver.stream, self._dtlsRole);
+ sdp += 'a=rtcp-rsize\r\n';
-// Expose public methods.
-module.exports = function(window) {
- var navigator = window && window.navigator;
+ 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';
+ });
- var shimError_ = function(e) {
- return {
- name: {PermissionDeniedError: 'NotAllowedError'}[e.name] || e.name,
- message: e.message,
- constraint: e.constraint,
- toString: function() {
- return this.name;
+ if (transceiver.iceGatherer.state === 'completed') {
+ sdp += 'a=end-of-candidates\r\n';
+ }
}
- };
- };
+ });
- // 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));
+ 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);
});
};
-};
-
-},{}],8:[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');
+ RTCPeerConnection.prototype.createAnswer = function() {
+ var self = this;
+ var args = arguments;
-// sort tracks such that they follow an a-v-a-v...
-// pattern.
-function sortTracks(tracks) {
- var audioTracks = tracks.filter(function(track) {
- return track.kind === 'audio';
- });
- var videoTracks = tracks.filter(function(track) {
- return track.kind === 'video';
- });
- tracks = [];
- while (audioTracks.length || videoTracks.length) {
- if (audioTracks.length) {
- tracks.push(audioTracks.shift());
- }
- if (videoTracks.length) {
- tracks.push(videoTracks.shift());
+ 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';
}
- }
- return tracks;
-}
-
-// Edge does not like
-// 1) stun:
-// 2) turn: that does not have all of turn:host:port?transport=udp
-// 3) turn: with ipv6 addresses
-// 4) turn: occurring muliple times
-function filterIceServers(iceServers, 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 mediaSectionsInOffer = SDPUtils.splitSections(
+ this.remoteDescription.sdp).length - 1;
+ this.transceivers.forEach(function(transceiver, sdpMLineIndex) {
+ if (sdpMLineIndex + 1 > mediaSectionsInOffer) {
+ return;
}
- var isString = typeof urls === 'string';
- if (isString) {
- urls = [urls];
+ 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;
}
- 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;
+ // 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];
}
- return url.indexOf('stun:') === 0 && edgeVersion >= 14393;
- });
-
- 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;
+ if (localTrack) {
+ // add RTX
+ if (edgeVersion >= 15019 && transceiver.kind === 'video' &&
+ !transceiver.sendEncodingParameters[0].rtx) {
+ transceiver.sendEncodingParameters[0].rtx = {
+ ssrc: transceiver.sendEncodingParameters[0].ssrc + 1
+ };
}
}
- 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;
-}
-
-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.needNegotiation = false;
+ // Calculate intersection of capabilities.
+ var commonCapabilities = getCommonCapabilities(
+ transceiver.localCapabilities,
+ transceiver.remoteCapabilities);
- 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;
+ var hasRtx = commonCapabilities.codecs.filter(function(c) {
+ return c.name.toLowerCase() === 'rtx';
+ }).length;
+ if (!hasRtx && transceiver.sendEncodingParameters[0].rtx) {
+ delete transceiver.sendEncodingParameters[0].rtx;
+ }
- this.localStreams = [];
- this.remoteStreams = [];
- this.getLocalStreams = function() {
- return self.localStreams;
- };
- this.getRemoteStreams = function() {
- return self.remoteStreams;
- };
+ sdp += writeMediaSection(transceiver, commonCapabilities,
+ 'answer', transceiver.stream, self._dtlsRole);
+ if (transceiver.rtcpParameters &&
+ transceiver.rtcpParameters.reducedSize) {
+ sdp += 'a=rtcp-rsize\r\n';
+ }
+ });
- this.localDescription = new window.RTCSessionDescription({
- type: '',
- sdp: ''
+ var desc = new window.RTCSessionDescription({
+ type: 'answer',
+ sdp: sdp
});
- this.remoteDescription = new window.RTCSessionDescription({
- type: '',
- sdp: ''
+ return new Promise(function(resolve) {
+ if (args.length > 0 && typeof args[0] === 'function') {
+ args[0].apply(null, [desc]);
+ resolve();
+ return;
+ }
+ resolve(desc);
});
- this.signalingState = 'stable';
- this.iceConnectionState = 'new';
- this.iceGatheringState = 'new';
+ };
- this.iceOptions = {
- gatherPolicy: 'all',
- iceServers: []
- };
- if (config && config.iceTransportPolicy) {
- switch (config.iceTransportPolicy) {
- case 'all':
- case 'relay':
- this.iceOptions.gatherPolicy = config.iceTransportPolicy;
- break;
- default:
- // don't set iceTransportPolicy.
+ 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;
+ }
}
- }
- this.usingBundle = config && config.bundlePolicy === 'max-bundle';
-
- if (config && config.iceServers) {
- this.iceOptions.iceServers = filterIceServers(config.iceServers,
- edgeVersion);
- }
- this._config = config || {};
-
- // per-track iceGathers, iceTransports, dtlsTransports, rtpSenders, ...
- // everything that is needed to describe a SDP m-line.
- this.transceivers = [];
-
- // since the iceGatherer is currently created in createOffer but we
- // must not emit candidates until after setLocalDescription we buffer
- // them in this array.
- this._localIceCandidatesBuffer = [];
-
- this._sdpSessionId = SDPUtils.generateSessionId();
- };
-
- RTCPeerConnection.prototype._emitGatheringStateChange = function() {
- var event = new Event('icegatheringstatechange');
- this.dispatchEvent(event);
- if (this.onicegatheringstatechange !== null) {
- this.onicegatheringstatechange(event);
- }
- };
+ } 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';
+ }
+ }
- RTCPeerConnection.prototype._emitBufferedCandidates = function() {
- var self = this;
- var sections = SDPUtils.splitSections(self.localDescription.sdp);
- // FIXME: need to apply ice candidates in a way which is async but
- // in-order
- this._localIceCandidatesBuffer.forEach(function(event) {
- var end = !event.candidate || Object.keys(event.candidate).length === 0;
- if (end) {
- for (var j = 1; j < sections.length; j++) {
- if (sections[j].indexOf('\r\na=end-of-candidates\r\n') === -1) {
- sections[j] += 'a=end-of-candidates\r\n';
+ 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 {
- sections[event.candidate.sdpMLineIndex + 1] +=
- 'a=' + event.candidate.candidate + '\r\n';
- }
- self.localDescription.sdp = sections.join('');
- self.dispatchEvent(event);
- if (self.onicecandidate !== null) {
- self.onicecandidate(event);
+ err = new Error('Can not add ICE candidate');
+ err.name = 'OperationError';
}
- if (!event.candidate && self.iceGatheringState !== 'complete') {
- var complete = self.transceivers.every(function(transceiver) {
- return transceiver.iceGatherer &&
- transceiver.iceGatherer.state === 'completed';
- });
- if (complete && self.iceGatheringStateChange !== 'complete') {
- self.iceGatheringState = 'complete';
- self._emitGatheringStateChange();
+ }
+ 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();
}
});
- this._localIceCandidatesBuffer = [];
- };
-
- RTCPeerConnection.prototype.getConfiguration = function() {
- return this._config;
};
- // 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);
- }
-
- transceiver.track = track;
- transceiver.stream = stream;
- transceiver.rtpSender = new window.RTCRtpSender(track,
- transceiver.dtlsTransport);
-
- this._maybeFireNegotiationNeeded();
- return transceiver.rtpSender;
- };
-
- RTCPeerConnection.prototype.addStream = function(stream) {
- var self = this;
- if (edgeVersion >= 15025) {
- this.localStreams.push(stream);
- 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;
+ 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);
});
- clonedStream.getTracks().forEach(function(track) {
- self.addTrack(track, clonedStream);
- });
- this.localStreams.push(clonedStream);
- }
- this._maybeFireNegotiationNeeded();
- };
-
- 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;
});
};
+ return RTCPeerConnection;
+};
- RTCPeerConnection.prototype.getReceivers = function() {
- return this.transceivers.filter(function(transceiver) {
- return !!transceiver.rtpReceiver;
- })
- .map(function(transceiver) {
- return transceiver.rtpReceiver;
- });
- };
+},{"sdp":2}],2:[function(require,module,exports){
+ /* eslint-env node */
+'use strict';
- // Create ICE gatherer and hook it up.
- RTCPeerConnection.prototype._createIceGatherer = function(mid,
- sdpMLineIndex) {
- var self = this;
- var iceGatherer = new window.RTCIceGatherer(self.iceOptions);
- iceGatherer.onlocalcandidate = function(evt) {
- var event = new Event('icecandidate');
- event.candidate = {sdpMid: mid, sdpMLineIndex: sdpMLineIndex};
+// SDP helpers.
+var SDPUtils = {};
- var cand = evt.candidate;
- var end = !cand || Object.keys(cand).length === 0;
- // Edge emits an empty object for RTCIceCandidateComplete‥
- if (end) {
- // polyfill since RTCIceGatherer.state is not implemented in
- // Edge 10547 yet.
- if (iceGatherer.state === undefined) {
- iceGatherer.state = 'completed';
- }
- } else {
- // RTCIceCandidate doesn't have a component, needs to be added
- cand.component = 1;
- event.candidate.candidate = SDPUtils.writeCandidate(cand);
- }
+// 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);
+};
- // update local description.
- var sections = SDPUtils.splitSections(self.localDescription.sdp);
- if (!end) {
- sections[event.candidate.sdpMLineIndex + 1] +=
- 'a=' + event.candidate.candidate + '\r\n';
- } else {
- sections[event.candidate.sdpMLineIndex + 1] +=
- 'a=end-of-candidates\r\n';
- }
- self.localDescription.sdp = sections.join('');
- var transceivers = self._pendingOffer ? self._pendingOffer :
- self.transceivers;
- var complete = transceivers.every(function(transceiver) {
- return transceiver.iceGatherer &&
- transceiver.iceGatherer.state === 'completed';
- });
+// The RTCP CNAME used by all peerconnections from the same JS.
+SDPUtils.localCName = SDPUtils.generateIdentifier();
- // Emit candidate if localDescription is set.
- // Also emits null candidate when all gatherers are complete.
- switch (self.iceGatheringState) {
- case 'new':
- if (!end) {
- self._localIceCandidatesBuffer.push(event);
- }
- if (end && complete) {
- self._localIceCandidatesBuffer.push(
- new Event('icecandidate'));
- }
- break;
- case 'gathering':
- self._emitBufferedCandidates();
- if (!end) {
- self.dispatchEvent(event);
- if (self.onicecandidate !== null) {
- self.onicecandidate(event);
- }
- }
- if (complete) {
- self.dispatchEvent(new Event('icecandidate'));
- if (self.onicecandidate !== null) {
- self.onicecandidate(new Event('icecandidate'));
- }
- self.iceGatheringState = 'complete';
- self._emitGatheringStateChange();
- }
- break;
- case 'complete':
- // should not happen... currently!
- break;
- default: // no-op.
- break;
- }
- };
- return iceGatherer;
- };
+// 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';
+ });
+};
- // Create ICE transport and DTLS transport.
- RTCPeerConnection.prototype._createIceAndDtlsTransports = function() {
- var self = this;
- var iceTransport = new window.RTCIceTransport(null);
- iceTransport.onicestatechange = function() {
- self._updateConnectionState();
- };
+// 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;
+ });
+};
- 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();
- };
+// 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(' ');
+ }
- return {
- iceTransport: iceTransport,
- dtlsTransport: dtlsTransport
- };
+ 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]
};
- // 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.ondtlssttatechange;
- delete dtlsTransport.onerror;
- delete this.transceivers[sdpMLineIndex].dtlsTransport;
+ 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;
+};
- // 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
+// 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
+ }
};
- if (transceiver.recvEncodingParameters.length) {
- params.rtcp.ssrc = transceiver.recvEncodingParameters[0].ssrc;
+ 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;
}
- transceiver.rtpSender.send(params);
+ 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);
+ firefoxShim.shimRemoveStream(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);
+ };
}
- if (recv && transceiver.rtpReceiver) {
- // remove RTX field in Edge 14942
- if (transceiver.kind === 'video'
- && transceiver.recvEncodingParameters
- && edgeVersion < 15019) {
- transceiver.recvEncodingParameters.forEach(function(p) {
- delete p.rtx;
- });
+ },
+
+ 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);
+ }
+ };
}
- params.encodings = transceiver.recvEncodingParameters;
- params.rtcp = {
- cname: transceiver.rtcpParameters.cname,
- compound: transceiver.rtcpParameters.compound
+ 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));
+ });
};
- if (transceiver.sendEncodingParameters.length) {
- params.rtcp.ssrc = transceiver.sendEncodingParameters[0].ssrc;
+
+ 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);
+ });
+ }
+ });
}
- transceiver.rtpReceiver.receive(params);
}
- };
-
- RTCPeerConnection.prototype.setLocalDescription = function(description) {
- var self = this;
+ },
- if (!isActionAllowedInSignalingState('setLocalDescription',
- description.type, this.signalingState)) {
- var e = new Error('Can not set local ' + description.type +
- ' in state ' + this.signalingState);
- e.name = 'InvalidStateError';
- if (arguments.length > 2 && typeof arguments[2] === 'function') {
- window.setTimeout(arguments[2], 0, e);
- }
- return Promise.reject(e);
+ shimAddTrackRemoveTrack: function(window) {
+ var browserDetails = utils.detectBrowser(window);
+ // shim addTrack and removeTrack.
+ if (window.RTCPeerConnection.prototype.addTrack &&
+ browserDetails.version >= 64) {
+ return;
}
- var sections;
- var sessionpart;
- if (description.type === 'offer') {
- // FIXME: What was the purpose of this empty if statement?
- // if (!this._pendingOffer) {
- // } else {
- if (this._pendingOffer) {
- // VERY limited support for SDP munging. Limited to:
- // * changing the order of codecs
- sections = SDPUtils.splitSections(description.sdp);
- sessionpart = sections.shift();
- sections.forEach(function(mediaSection, sdpMLineIndex) {
- var caps = SDPUtils.parseRtpParameters(mediaSection);
- self._pendingOffer[sdpMLineIndex].localCapabilities = caps;
- });
- this.transceivers = this._pendingOffer;
- delete this._pendingOffer;
- }
- } else if (description.type === 'answer') {
- sections = SDPUtils.splitSections(self.remoteDescription.sdp);
- sessionpart = sections.shift();
- var isIceLite = SDPUtils.matchPrefix(sessionpart,
- 'a=ice-lite').length > 0;
- sections.forEach(function(mediaSection, sdpMLineIndex) {
- var transceiver = self.transceivers[sdpMLineIndex];
- var iceGatherer = transceiver.iceGatherer;
- var iceTransport = transceiver.iceTransport;
- var dtlsTransport = transceiver.dtlsTransport;
- var localCapabilities = transceiver.localCapabilities;
- var remoteCapabilities = transceiver.remoteCapabilities;
-
- var rejected = SDPUtils.isRejected(mediaSection);
-
- if (!rejected && !transceiver.isDatachannel) {
- var remoteIceParameters = SDPUtils.getIceParameters(
- mediaSection, sessionpart);
- var remoteDtlsParameters = SDPUtils.getDtlsParameters(
- mediaSection, sessionpart);
- if (isIceLite) {
- remoteDtlsParameters.role = 'server';
- }
-
- if (!self.usingBundle || sdpMLineIndex === 0) {
- iceTransport.start(iceGatherer, remoteIceParameters,
- isIceLite ? 'controlling' : 'controlled');
- dtlsTransport.start(remoteDtlsParameters);
- }
+ // 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];
+ });
+ };
- // Calculate intersection of capabilities.
- var params = getCommonCapabilities(localCapabilities,
- remoteCapabilities);
+ var origAddStream = window.RTCPeerConnection.prototype.addStream;
+ window.RTCPeerConnection.prototype.addStream = function(stream) {
+ var pc = this;
+ pc._streams = pc._streams || {};
+ pc._reverseStreams = pc._reverseStreams || {};
- // Start the RTCRtpSender. The RTCRtpReceiver for this
- // transceiver has already been started in setRemoteDescription.
- self._transceive(transceiver,
- params.codecs.length > 0,
- false);
+ 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]);
+ };
- this.localDescription = {
- type: description.type,
- sdp: description.sdp
+ 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];
};
- switch (description.type) {
- case 'offer':
- this._updateSignalingState('have-local-offer');
- break;
- case 'answer':
- this._updateSignalingState('stable');
- break;
- default:
- throw new TypeError('unsupported type "' + description.type +
- '"');
- }
- // If a success callback was provided, emit ICE candidates after it
- // has been executed. Otherwise, emit callback after the Promise is
- // resolved.
- var hasCallback = arguments.length > 1 &&
- typeof arguments[1] === 'function';
- if (hasCallback) {
- var cb = arguments[1];
- window.setTimeout(function() {
- cb();
- if (self.iceGatheringState === 'new') {
- self.iceGatheringState = 'gathering';
- self._emitGatheringStateChange();
- }
- self._emitBufferedCandidates();
- }, 0);
- }
- var p = Promise.resolve();
- p.then(function() {
- if (!hasCallback) {
- if (self.iceGatheringState === 'new') {
- self.iceGatheringState = 'gathering';
- self._emitGatheringStateChange();
- }
- // Usually candidates will be emitted earlier.
- window.setTimeout(self._emitBufferedCandidates.bind(self), 500);
+ 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');
}
- });
- return p;
- };
- RTCPeerConnection.prototype.setRemoteDescription = function(description) {
- var self = this;
+ var alreadyExists = pc.getSenders().find(function(s) {
+ return s.track === track;
+ });
+ if (alreadyExists) {
+ throw new DOMException('Track already exists.',
+ 'InvalidAccessError');
+ }
- if (!isActionAllowedInSignalingState('setRemoteDescription',
- description.type, this.signalingState)) {
- var e = new Error('Can not set remote ' + description.type +
- ' in state ' + this.signalingState);
- e.name = 'InvalidStateError';
- if (arguments.length > 2 && typeof arguments[2] === 'function') {
- window.setTimeout(arguments[2], 0, e);
+ 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 Promise.reject(e);
- }
+ return pc.getSenders().find(function(s) {
+ return s.track === track;
+ });
+ };
- var streams = {};
- var receiverList = [];
- var sections = SDPUtils.splitSections(description.sdp);
- var sessionpart = sections.shift();
- var isIceLite = SDPUtils.matchPrefix(sessionpart,
- 'a=ice-lite').length > 0;
- var usingBundle = SDPUtils.matchPrefix(sessionpart,
- 'a=group:BUNDLE ').length > 0;
- 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;
+ // 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);
+ });
+ };
+ });
- sections.forEach(function(mediaSection, sdpMLineIndex) {
- var lines = SDPUtils.splitLines(mediaSection);
- var kind = SDPUtils.getKind(mediaSection);
- var rejected = SDPUtils.isRejected(mediaSection);
- var protocol = lines[0].substr(2).split(' ')[2];
+ 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);
+ };
- var direction = SDPUtils.getDirection(mediaSection, sessionpart);
- var remoteMsid = SDPUtils.parseMsid(mediaSection);
+ // TODO: mangle getStats: https://w3c.github.io/webrtc-stats/#dom-rtcmediastreamstats-streamidentifier
- var mid = SDPUtils.getMid(mediaSection) || SDPUtils.generateIdentifier();
+ 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);
+ }
+ });
- // Reject datachannels which are not implemented yet.
- if (kind === 'application' && protocol === 'DTLS/SCTP') {
- self.transceivers[sdpMLineIndex] = {
- mid: mid,
- isDatachannel: true
- };
- return;
+ 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');
}
- var transceiver;
- var iceGatherer;
- var iceTransport;
- var dtlsTransport;
- var rtpReceiver;
- var sendEncodingParameters;
- var recvEncodingParameters;
- var localCapabilities;
+ // 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];
+ }
+ });
- 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';
+ 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'));
}
- recvEncodingParameters =
- SDPUtils.parseRtpEncodingParameters(mediaSection);
+ };
+ },
- var rtcpParameters = SDPUtils.parseRtcpParameters(mediaSection);
+ shimPeerConnection: function(window) {
+ var browserDetails = utils.detectBrowser(window);
- 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' || cand.component === 1;
- });
+ // 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;
+ }
- // 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);
+ 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;
}
- if (self.transceivers[sdpMLineIndex].rtpReceiver) {
- self.transceivers[sdpMLineIndex].rtpReceiver.setTransport(
- self.transceivers[0].dtlsTransport);
+ 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);
}
- if (description.type === 'offer' && !rejected) {
- transceiver = self.transceivers[sdpMLineIndex] ||
- self._createTransceiver(kind);
- transceiver.mid = mid;
- if (!transceiver.iceGatherer) {
- transceiver.iceGatherer = usingBundle && sdpMLineIndex > 0 ?
- self.transceivers[0].iceGatherer :
- self._createIceGatherer(mid, sdpMLineIndex);
- }
+ // 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, []);
+ }
- if (isComplete && (!usingBundle || sdpMLineIndex === 0)) {
- transceiver.iceTransport.setRemoteCandidates(cands);
- }
+ 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;
+ });
- localCapabilities = window.RTCRtpReceiver.getCapabilities(kind);
+ return standardReport;
+ };
- // 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';
- });
- }
+ // shim getStats with maplike support
+ var makeMapStats = function(stats) {
+ return new Map(Object.keys(stats).map(function(key) {
+ return [key, stats[key]];
+ }));
+ };
- sendEncodingParameters = [{
- ssrc: (2 * sdpMLineIndex + 2) * 1001
- }];
+ if (arguments.length >= 2) {
+ var successCallbackWrapper_ = function(response) {
+ args[1](makeMapStats(fixChromeStats_(response)));
+ };
- if (direction === 'sendrecv' || direction === 'sendonly') {
- rtpReceiver = new window.RTCRtpReceiver(transceiver.dtlsTransport,
- kind);
+ return origGetStats.apply(this, [successCallbackWrapper_,
+ arguments[0]]);
+ }
- 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;
- }
+ // 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]);
});
- }
- Object.defineProperty(track, 'id', {
- get: function() {
- return remoteMsid.track;
+ 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]);
});
- 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]);
}
- }
-
- 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,
- direction === 'sendrecv' || direction === 'sendonly');
- } 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 ((isIceLite || isComplete) && cands.length) {
- iceTransport.setRemoteCandidates(cands);
- }
- if (!usingBundle || sdpMLineIndex === 0) {
- iceTransport.start(iceGatherer, remoteIceParameters,
- 'controlling');
- dtlsTransport.start(remoteDtlsParameters);
- }
+ return nativeMethod.apply(this, arguments);
+ };
+ });
+ }
- self._transceive(transceiver,
- direction === 'sendrecv' || direction === 'recvonly',
- direction === 'sendrecv' || direction === 'sendonly');
+ // 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);
+ };
+ });
- 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;
+ // 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();
}
- });
-
- this.remoteDescription = {
- type: description.type,
- sdp: description.sdp
+ return nativeAddIceCandidate.apply(this, arguments);
};
- switch (description.type) {
- case 'offer':
- this._updateSignalingState('have-remote-offer');
- break;
- case 'answer':
- this._updateSignalingState('stable');
- break;
- default:
- throw new TypeError('unsupported type "' + description.type +
- '"');
- }
- Object.keys(streams).forEach(function(sid) {
- var stream = streams[sid];
- if (stream.getTracks().length) {
- self.remoteStreams.push(stream);
- var event = new Event('addstream');
- event.stream = stream;
- self.dispatchEvent(event);
- if (self.onaddstream !== null) {
- window.setTimeout(function() {
- self.onaddstream(event);
- }, 0);
- }
+ }
+};
- receiverList.forEach(function(item) {
- var track = item[0];
- var receiver = item[1];
- if (stream.id !== item[2].id) {
- return;
- }
- var trackEvent = new Event('track');
- trackEvent.track = track;
- trackEvent.receiver = receiver;
- trackEvent.streams = [stream];
- self.dispatchEvent(trackEvent);
- if (self.ontrack !== null) {
- window.setTimeout(function() {
- self.ontrack(trackEvent);
- }, 0);
- }
- });
- }
- });
- // 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);
+// 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;
- if (arguments.length > 1 && typeof arguments[1] === 'function') {
- window.setTimeout(arguments[1], 0);
+ var constraintsToChrome_ = function(c) {
+ if (typeof c !== 'object' || c.mandatory || c.optional) {
+ return c;
}
- return Promise.resolve();
- };
-
- RTCPeerConnection.prototype.close = function() {
- this.transceivers.forEach(function(transceiver) {
- /* not yet
- if (transceiver.iceGatherer) {
- transceiver.iceGatherer.close();
- }
- */
- if (transceiver.iceTransport) {
- transceiver.iceTransport.stop();
+ var cc = {};
+ Object.keys(c).forEach(function(key) {
+ if (key === 'require' || key === 'advanced' || key === 'mediaSource') {
+ return;
}
- if (transceiver.dtlsTransport) {
- transceiver.dtlsTransport.stop();
+ 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;
}
- if (transceiver.rtpSender) {
- transceiver.rtpSender.stop();
+ 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 (transceiver.rtpReceiver) {
- transceiver.rtpReceiver.stop();
+ 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];
+ }
+ });
}
});
- // 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 (this.onsignalingstatechange !== null) {
- this.onsignalingstatechange(event);
+ if (c.advanced) {
+ cc.optional = (cc.optional || []).concat(c.advanced);
}
+ return cc;
};
- // Determine whether to fire the negotiationneeded event.
- RTCPeerConnection.prototype._maybeFireNegotiationNeeded = function() {
- var self = this;
- if (this.signalingState !== 'stable' || this.needNegotiation === true) {
- return;
+ var shimConstraints_ = function(constraints, func) {
+ if (browserDetails.version >= 61) {
+ return func(constraints);
}
- this.needNegotiation = true;
- window.setTimeout(function() {
- if (self.needNegotiation === false) {
- return;
- }
- self.needNegotiation = false;
- var event = new Event('negotiationneeded');
- self.dispatchEvent(event);
- if (self.onnegotiationneeded !== null) {
- self.onnegotiationneeded(event);
- }
- }, 0);
- };
-
- // Update the connection state.
- RTCPeerConnection.prototype._updateConnectionState = function() {
- var self = this;
- 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';
+ 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 (newState !== self.iceConnectionState) {
- self.iceConnectionState = newState;
- var event = new Event('iceconnectionstatechange');
- this.dispatchEvent(event);
- if (this.oniceconnectionstatechange !== null) {
- this.oniceconnectionstatechange(event);
+ 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);
};
- RTCPeerConnection.prototype.createOffer = function() {
- var self = this;
- if (this._pendingOffer) {
- throw new Error('createOffer called while there is a pending offer.');
- }
- var offerOptions;
- if (arguments.length === 1 && typeof arguments[0] !== 'function') {
- offerOptions = arguments[0];
- } else if (arguments.length === 3) {
- offerOptions = arguments[2];
- }
-
- var 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;
- }
+ 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;
}
- }
+ };
+ };
- 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;
+ var getUserMedia_ = function(constraints, onSuccess, onError) {
+ shimConstraints_(constraints, function(c) {
+ navigator.webkitGetUserMedia(c, onSuccess, function(e) {
+ if (onError) {
+ onError(shimError_(e));
}
- }
+ });
});
+ };
- // 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--;
- }
- }
- // reorder tracks
- var transceivers = sortTracks(this.transceivers);
+ navigator.getUserMedia = getUserMedia_;
- var sdp = SDPUtils.writeSessionBoilerplate(this._sdpSessionId);
- 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;
+ // Returns the result of getUserMedia as a Promise.
+ var getUserMediaPromise_ = function(constraints) {
+ return new Promise(function(resolve, reject) {
+ navigator.getUserMedia(constraints, resolve, reject);
+ });
+ };
- if (!transceiver.iceGatherer) {
- transceiver.iceGatherer = self.usingBundle && sdpMLineIndex > 0 ?
- transceivers[0].iceGatherer :
- self._createIceGatherer(mid, sdpMLineIndex);
+ 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
+ };
}
+ };
+ }
- 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';
+ // 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();
});
- }
- 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';
- }
+ throw new DOMException('', 'NotFoundError');
+ }
+ return stream;
+ }, function(e) {
+ return Promise.reject(shimError_(e));
+ });
});
+ };
+ }
- // generate an ssrc now, to be used later in rtpSender.send
- var sendEncodingParameters = [{
- ssrc: (2 * sdpMLineIndex + 1) * 1001
- }];
- if (track) {
- // add RTX
- if (edgeVersion >= 15019 && kind === 'video') {
- sendEncodingParameters[0].rtx = {
- ssrc: (2 * sdpMLineIndex + 1) * 1001 + 1
- };
- }
- }
+ // 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.');
+ };
+ }
+};
- if (transceiver.wantReceive) {
- transceiver.rtpReceiver = new window.RTCRtpReceiver(
- transceiver.dtlsTransport,
- kind
- );
- }
+},{"../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';
- transceiver.localCapabilities = localCapabilities;
- transceiver.sendEncodingParameters = sendEncodingParameters;
- });
+var SDPUtils = require('sdp');
+var utils = require('./utils');
- // always offer BUNDLE and dispose on return if not supported.
- if (this._config.bundlePolicy !== 'max-compat') {
- sdp += 'a=group:BUNDLE ' + transceivers.map(function(t) {
- return t.mid;
- }).join(' ') + '\r\n';
+// 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);
}
- sdp += 'a=ice-options:trickle\r\n';
-
- transceivers.forEach(function(transceiver, sdpMLineIndex) {
- sdp += SDPUtils.writeMediaSection(transceiver,
- transceiver.localCapabilities, 'offer', transceiver.stream);
- sdp += 'a=rtcp-rsize\r\n';
- });
+ var wrappedCallback = function(e) {
+ cb(wrapper(e));
+ };
+ this._eventMap = this._eventMap || {};
+ this._eventMap[cb] = wrappedCallback;
+ return nativeAddEventListener.apply(this, [nativeEventName,
+ wrappedCallback]);
+ };
- this._pendingOffer = transceivers;
- var desc = new window.RTCSessionDescription({
- type: 'offer',
- sdp: sdp
- });
- if (arguments.length && typeof arguments[0] === 'function') {
- window.setTimeout(arguments[0], 0, desc);
+ var nativeRemoveEventListener = proto.removeEventListener;
+ proto.removeEventListener = function(nativeEventName, cb) {
+ if (nativeEventName !== eventNameToWrap || !this._eventMap
+ || !this._eventMap[cb]) {
+ return nativeRemoveEventListener.apply(this, arguments);
}
- return Promise.resolve(desc);
+ var unwrappedCb = this._eventMap[cb];
+ delete this._eventMap[cb];
+ return nativeRemoveEventListener.apply(this, [nativeEventName,
+ unwrappedCb]);
};
- RTCPeerConnection.prototype.createAnswer = function() {
- var sdp = SDPUtils.writeSessionBoilerplate(this._sdpSessionId);
- if (this.usingBundle) {
- sdp += 'a=group:BUNDLE ' + this.transceivers.map(function(t) {
- return t.mid;
- }).join(' ') + '\r\n';
+ 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);
+ }
}
- this.transceivers.forEach(function(transceiver, sdpMLineIndex) {
- 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;
+ });
+}
+
+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);
}
- // 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 = {
- ssrc: (2 * sdpMLineIndex + 2) * 1001 + 1
- };
- }
- }
+ // 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;
+ });
+ },
- // Calculate intersection of capabilities.
- var commonCapabilities = getCommonCapabilities(
- transceiver.localCapabilities,
- transceiver.remoteCapabilities);
+ // shimCreateObjectURL must be called before shimSourceObject to avoid loop.
- var hasRtx = commonCapabilities.codecs.filter(function(c) {
- return c.name.toLowerCase() === 'rtx';
- }).length;
- if (!hasRtx && transceiver.sendEncodingParameters[0].rtx) {
- delete transceiver.sendEncodingParameters[0].rtx;
+ 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);
+ };
- sdp += SDPUtils.writeMediaSection(transceiver, commonCapabilities,
- 'answer', transceiver.stream);
- if (transceiver.rtcpParameters &&
- transceiver.rtcpParameters.reducedSize) {
- sdp += 'a=rtcp-rsize\r\n';
+ 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 desc = new window.RTCSessionDescription({
- type: 'answer',
- sdp: sdp
- });
- if (arguments.length && typeof arguments[0] === 'function') {
- window.setTimeout(arguments[0], 0, desc);
- }
- return Promise.resolve(desc);
- };
+ 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);
+ };
+ }
+};
- RTCPeerConnection.prototype.addIceCandidate = function(candidate) {
- if (!candidate) {
- for (var j = 0; j < this.transceivers.length; j++) {
- this.transceivers[j].iceTransport.addRemoteCandidate({});
- if (this.usingBundle) {
- return Promise.resolve();
- }
+},{"./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;
+ };
}
- } else {
- var mLineIndex = candidate.sdpMLineIndex;
- if (candidate.sdpMid) {
- for (var i = 0; i < this.transceivers.length; i++) {
- if (this.transceivers[i].mid === candidate.sdpMid) {
- mLineIndex = i;
- break;
- }
- }
+ // 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;
+ };
}
- var transceiver = this.transceivers[mLineIndex];
- if (transceiver) {
- var cand = Object.keys(candidate.candidate).length > 0 ?
- SDPUtils.parseCandidate(candidate.candidate) : {};
- // Ignore Chrome's invalid candidates since Edge does not like them.
- if (cand.protocol === 'tcp' && (cand.port === 0 || cand.port === 9)) {
- return Promise.resolve();
- }
- // Ignore RTCP candidates, we assume RTCP-MUX.
- if (cand.component &&
- !(cand.component === '1' || cand.component === 1)) {
- return Promise.resolve();
- }
- transceiver.iceTransport.addRemoteCandidate(cand);
-
- // update the remoteDescription.
- var sections = SDPUtils.splitSections(this.remoteDescription.sdp);
- sections[mLineIndex + 1] += (cand.type ? candidate.candidate.trim()
- : 'a=end-of-candidates') + '\r\n';
- this.remoteDescription.sdp = sections.join('');
+ // 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);
+ }
+ });
}
}
- if (arguments.length > 1 && typeof arguments[1] === 'function') {
- window.setTimeout(arguments[1], 0);
- }
- return Promise.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());
+ // 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;
+ }
}
- });
- });
- var cb = arguments.length > 1 && typeof arguments[1] === 'function' &&
- arguments[1];
- var fixStatsType = function(stat) {
- return {
- inboundrtp: 'inbound-rtp',
- outboundrtp: 'outbound-rtp',
- candidatepair: 'candidate-pair',
- localcandidate: 'local-candidate',
- remotecandidate: 'remote-candidate'
- }[stat.type] || stat.type;
- };
- return new Promise(function(resolve) {
- // shim getStats with maplike support
- var results = new Map();
- Promise.all(promises).then(function(res) {
- res.forEach(function(result) {
- Object.keys(result).forEach(function(id) {
- result[id].type = fixStatsType(result[id]);
- results.set(id, result[id]);
- });
- });
- if (cb) {
- window.setTimeout(cb, 0, results);
+ return this._dtmf;
}
- resolve(results);
});
+ }
+
+ 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));
});
};
- return RTCPeerConnection;
};
-},{"sdp":1}],9:[function(require,module,exports){
+},{}],10:[function(require,module,exports){
/*
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
*
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));
}
});
}
+ 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) {
})
.then(onSucc, onErr);
};
+ },
+
+ shimRemoveStream: function(window) {
+ if (!window.RTCPeerConnection ||
+ 'removeStream' in window.RTCPeerConnection.prototype) {
+ return;
+ }
+ window.RTCPeerConnection.prototype.removeStream = function(stream) {
+ var pc = this;
+ utils.deprecated('removeStream', 'removeTrack');
+ this.getSenders().forEach(function(sender) {
+ if (sender.track && stream.getTracks().indexOf(sender.track) !== -1) {
+ pc.removeTrack(sender);
+ }
+ });
+ };
}
};
shimOnTrack: firefoxShim.shimOnTrack,
shimSourceObject: firefoxShim.shimSourceObject,
shimPeerConnection: firefoxShim.shimPeerConnection,
+ shimRemoveStream: firefoxShim.shimRemoveStream,
shimGetUserMedia: require('./getusermedia')
};
-},{"../utils":12,"./getusermedia":10}],10:[function(require,module,exports){
+},{"../utils":13,"./getusermedia":11}],11:[function(require,module,exports){
/*
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
*
return getUserMedia_(constraints, onSuccess, onError);
}
// Replace Firefox 44+'s deprecation warning with unprefixed version.
- console.warn('navigator.getUserMedia has been replaced by ' +
- 'navigator.mediaDevices.getUserMedia');
+ utils.deprecated('navigator.getUserMedia',
+ 'navigator.mediaDevices.getUserMedia');
navigator.mediaDevices.getUserMedia(constraints).then(onSuccess, onError);
};
};
-},{"../utils":12}],11:[function(require,module,exports){
+},{"../utils":13}],12:[function(require,module,exports){
/*
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
*
this._localStreams.push(stream);
}
}
- _addTrack.call(this, track, stream);
+ return _addTrack.call(this, track, stream);
};
}
if (!('removeStream' in window.RTCPeerConnection.prototype)) {
};
window.RTCPeerConnection.prototype = OrigPeerConnection.prototype;
// wrap static methods. Currently just generateCertificate.
- Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
- get: function() {
- return OrigPeerConnection.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);
+ };
}
};
shimLocalStreamsAPI: safariShim.shimLocalStreamsAPI,
shimRemoteStreamsAPI: safariShim.shimRemoteStreamsAPI,
shimGetUserMedia: safariShim.shimGetUserMedia,
- shimRTCIceServerUrls: safariShim.shimRTCIceServerUrls
+ shimRTCIceServerUrls: safariShim.shimRTCIceServerUrls,
+ shimTrackEventTransceiver: safariShim.shimTrackEventTransceiver,
+ shimCreateOfferLegacy: safariShim.shimCreateOfferLegacy
// TODO
// shimPeerConnection: safariShim.shimPeerConnection
};
-},{"../utils":12}],12:[function(require,module,exports){
+},{"../utils":13}],13:[function(require,module,exports){
/*
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
*
return result;
},
- // 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)) {
- // 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);
- };
- }
};
// Export.
detectBrowser: utils.detectBrowser.bind(utils)
};
-},{}]},{},[2])(2)
+},{}]},{},[3])(3)
});
\ No newline at end of file
self.peer=FSRTCPeerConnection({type:self.type,attachStream:self.localStream,onICE:function(candidate){return onICE(self,candidate);},onICEComplete:function(){return onICEComplete(self);},onRemoteStream:screen?function(stream){}:function(stream){return onRemoteStream(self,stream);},onOfferSDP:function(sdp){return onOfferSDP(self,sdp);},onICESDP:function(sdp){return onICESDP(self,sdp);},onChannelError:function(e){return onChannelError(self,e);},constraints:self.constraints,iceServers:self.options.iceServers,});onStreamSuccess(self,stream);}
function onError(e){onStreamError(self,e);}
var mediaParams=getMediaParams(self);console.log("Audio constraints",mediaParams.audio);console.log("Video constraints",mediaParams.video);if(mediaParams.audio||mediaParams.video){getUserMedia({constraints:{audio:mediaParams.audio,video:mediaParams.video},video:mediaParams.useVideo,onsuccess:onSuccess,onerror:onError});}else{onSuccess(null);}};function FSRTCPeerConnection(options){var gathering=false,done=false;var config={};var default_ice={urls:['stun:stun.l.google.com:19302']};if(options.iceServers){if(typeof(options.iceServers)==="boolean"){config.iceServers=[default_ice];}else{config.iceServers=options.iceServers;}}
-var peer=new window.RTCPeerConnection(config);openOffererChannel();var x=0;function ice_handler(){done=true;gathering=null;if(options.onICEComplete){options.onICEComplete();}
+config.bundlePolicy="max-compat";var peer=new window.RTCPeerConnection(config);openOffererChannel();var x=0;function ice_handler(){done=true;gathering=null;if(options.onICEComplete){options.onICEComplete();}
if(options.type=="offer"){options.onICESDP(peer.localDescription);}else{if(!x&&options.onICESDP){options.onICESDP(peer.localDescription);}}}
peer.onicecandidate=function(event){if(done){return;}
if(!gathering){gathering=setTimeout(ice_handler,1000);}
verto.sendMethod("verto.broadcast",msg);};$.verto.prototype.purge=function(callID){var verto=this;var x=0;var i;for(i in verto.dialogs){if(!x){console.log("purging dialogs");}
x++;verto.dialogs[i].setState($.verto.enum.state.purge);}
for(i in verto.eventSUBS){if(verto.eventSUBS[i]){console.log("purging subscription: "+i);delete verto.eventSUBS[i];}}};$.verto.prototype.hangup=function(callID){var verto=this;if(callID){var dialog=verto.dialogs[callID];if(dialog){dialog.hangup();}}else{for(var i in verto.dialogs){verto.dialogs[i].hangup();}}};$.verto.prototype.newCall=function(args,callbacks){var verto=this;if(!verto.rpcClient.socketReady()){console.error("Not Connected...");return;}
+if(args["useCamera"]){verto.options.deviceParams["useCamera"]=args["useCamera"];}
var dialog=new $.verto.dialog($.verto.enum.direction.outbound,this,args);dialog.invite();if(callbacks){dialog.callbacks=callbacks;}
return dialog;};$.verto.prototype.handleMessage=function(data){var verto=this;if(!(data&&data.method)){console.error("Invalid Data",data);return;}
if(data.params.callID){var dialog=verto.dialogs[data.params.callID];if(data.method==="verto.attach"&&dialog){delete dialog.verto.dialogs[dialog.callID];dialog.rtc.stop();dialog=null;}
navigator.mediaDevices.enumerateDevices().then(checkTypes).catch(handleError);};$.verto.refreshDevices=function(runtime){checkDevices(runtime);}
$.verto.init=function(obj,runtime){if(!obj){obj={};}
if(!obj.skipPermCheck&&!obj.skipDeviceCheck){$.FSRTC.checkPerms(function(status){checkDevices(runtime);},true,true);}else if(obj.skipPermCheck&&!obj.skipDeviceCheck){checkDevices(runtime);}else if(!obj.skipPermCheck&&obj.skipDeviceCheck){$.FSRTC.checkPerms(function(status){runtime(status);},true,true);}else{runtime(null);}}
-$.verto.genUUID=function(){return generateGUID();}})(jQuery);(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){'use strict';var SDPUtils={};SDPUtils.generateIdentifier=function(){return Math.random().toString(36).substr(2,10);};SDPUtils.localCName=SDPUtils.generateIdentifier();SDPUtils.splitLines=function(blob){return blob.trim().split('\n').map(function(line){return line.trim();});};SDPUtils.splitSections=function(blob){var parts=blob.split('\nm=');return parts.map(function(part,index){return(index>0?'m='+part:part).trim()+'\r\n';});};SDPUtils.matchPrefix=function(blob,prefix){return SDPUtils.splitLines(blob).filter(function(line){return line.indexOf(prefix)===0;});};SDPUtils.parseCandidate=function(line){var parts;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),type:parts[7]};for(var i=8;i<parts.length;i+=2){switch(parts[i]){case'raddr':candidate.relatedAddress=parts[i+1];break;case'rport':candidate.relatedPort=parseInt(parts[i+1],10);break;case'tcptype':candidate.tcpType=parts[i+1];break;default:candidate[parts[i]]=parts[i+1];break;}}
+$.verto.genUUID=function(){return generateGUID();}})(jQuery);(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){'use strict';var SDPUtils=require('sdp');function writeMediaSection(transceiver,caps,type,stream,dtlsRole){var sdp=SDPUtils.writeRtpDescription(transceiver.kind,caps);sdp+=SDPUtils.writeIceParameters(transceiver.iceGatherer.getLocalParameters());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){var msid='msid:'+stream.id+' '+
+transceiver.rtpSender.track.id+'\r\n';sdp+='a='+msid;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';}}
+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;}
+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;});}
+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){if(!rtxCapabilityMatches(lCodec,rCodec,localCapabilities.codecs,remoteCapabilities.codecs)){continue;}}
+rCodec=JSON.parse(JSON.stringify(rCodec));rCodec.numChannels=Math.min(lCodec.numChannels,rCodec.numChannels);commonCapabilities.codecs.push(rCodec);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;});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;}}});return commonCapabilities;}
+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){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;this.transceivers=[];this._sdpSessionId=SDPUtils.generateSessionId();this._sdpSessionVersion=0;this._dtlsRole=undefined;};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;};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{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;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;};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){return;}
+var event=new Event('icecandidate');event.candidate={sdpMid:mid,sdpMLineIndex:sdpMLineIndex};var cand=evt.candidate;var end=!cand||Object.keys(cand).length===0;if(end){if(iceGatherer.state==='new'||iceGatherer.state==='gathering'){iceGatherer.state='completed';}}else{if(iceGatherer.state==='new'){iceGatherer.state='gathering';}
+cand.component=1;event.candidate.candidate=SDPUtils.writeCandidate(cand);}
+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();}
+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();}};window.setTimeout(function(){candidates.forEach(function(candidate){var e=new Event('RTCIceGatherEvent');e.candidate=candidate;iceGatherer.onlocalcandidate(e);});},0);};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(){Object.defineProperty(dtlsTransport,'state',{value:'failed',writable:true});self._updateConnectionState();};return{iceTransport:iceTransport,dtlsTransport:dtlsTransport};};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;}};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&¶ms.codecs.length>0){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'){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;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);}}
+var params=getCommonCapabilities(localCapabilities,remoteCapabilities);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+'"');}
+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);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();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;var remoteCapabilities=SDPUtils.parseRtpParameters(mediaSection);var remoteIceParameters;var remoteDtlsParameters;if(!rejected){remoteIceParameters=SDPUtils.getIceParameters(mediaSection,sessionpart);remoteDtlsParameters=SDPUtils.getDtlsParameters(mediaSection,sessionpart);remoteDtlsParameters.role='client';}
+recvEncodingParameters=SDPUtils.parseRtpEncodingParameters(mediaSection);var rtcpParameters=SDPUtils.parseRtcpParameters(mediaSection);var isComplete=SDPUtils.matchPrefix(mediaSection,'a=end-of-candidates',sessionpart).length>0;var cands=SDPUtils.matchPrefix(mediaSection,'a=candidate:').map(function(cand){return SDPUtils.parseCandidate(cand);}).filter(function(cand){return cand.component===1;});if((description.type==='offer'||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);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;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;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{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);}});});}});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){if(transceiver.iceTransport){transceiver.iceTransport.stop();}
+if(transceiver.dtlsTransport){transceiver.dtlsTransport.stop();}
+if(transceiver.rtpSender){transceiver.rtpSender.stop();}
+if(transceiver.rtpReceiver){transceiver.rtpReceiver.stop();}});this._updateSignalingState('closed');};RTCPeerConnection.prototype._updateSignalingState=function(newState){this.signalingState=newState;var event=new Event('signalingstatechange');this.dispatchEvent(event);if(typeof this.onsignalingstatechange==='function'){this.onsignalingstatechange(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);};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]++;});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;if(offerOptions){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;}}});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){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);if(edgeVersion<15019){localCapabilities.codecs=localCapabilities.codecs.filter(function(codec){return codec.name!=='rtx';});}
+localCapabilities.codecs.forEach(function(codec){if(codec.name==='H264'&&codec.parameters['level-asymmetry-allowed']===undefined){codec.parameters['level-asymmetry-allowed']='1';}});var sendEncodingParameters=transceiver.sendEncodingParameters||[{ssrc:(2*sdpMLineIndex+1)*1001}];if(track){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;});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;}
+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){if(edgeVersion>=15019&&transceiver.kind==='video'&&!transceiver.sendEncodingParameters[0].rtx){transceiver.sendEncodingParameters[0].rtx={ssrc:transceiver.sendEncodingParameters[0].ssrc+1};}}}
+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):{};if(cand.protocol==='tcp'&&(cand.port===0||cand.port===9)){return Promise.resolve();}
+if(cand.component&&cand.component!==1){return Promise.resolve();}
+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){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){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){'use strict';var SDPUtils={};SDPUtils.generateIdentifier=function(){return Math.random().toString(36).substr(2,10);};SDPUtils.localCName=SDPUtils.generateIdentifier();SDPUtils.splitLines=function(blob){return blob.trim().split('\n').map(function(line){return line.trim();});};SDPUtils.splitSections=function(blob){var parts=blob.split('\nm=');return parts.map(function(part,index){return(index>0?'m='+part:part).trim()+'\r\n';});};SDPUtils.matchPrefix=function(blob,prefix){return SDPUtils.splitLines(blob).filter(function(line){return line.indexOf(prefix)===0;});};SDPUtils.parseCandidate=function(line){var parts;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),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];candidate.usernameFragment=parts[i+1];break;default:candidate[parts[i]]=parts[i+1];break;}}
return candidate;};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);sdp.push('rport');sdp.push(candidate.relatedPort);}
if(candidate.tcpType&&candidate.protocol.toLowerCase()==='tcp'){sdp.push('tcptype');sdp.push(candidate.tcpType);}
if(candidate.ufrag){sdp.push('ufrag');sdp.push(candidate.ufrag);}
encodingParameters.forEach(function(params){params.maxBitrate=bandwidth;});}
return encodingParameters;};SDPUtils.parseRtcpParameters=function(mediaSection){var rtcpParameters={};var cname;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;}
var rsize=SDPUtils.matchPrefix(mediaSection,'a=rtcp-rsize');rtcpParameters.reducedSize=rsize.length>0;rtcpParameters.compound=rsize.length===0;var mux=SDPUtils.matchPrefix(mediaSection,'a=rtcp-mux');rtcpParameters.mux=mux.length>0;return rtcpParameters;};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]};}};SDPUtils.generateSessionId=function(){return Math.random().toString().substr(2,21);};SDPUtils.writeSessionBoilerplate=function(sessId){var sessionId;if(sessId){sessionId=sessId;}else{sessionId=SDPUtils.generateSessionId();}
-return'v=0\r\n'+'o=thisisadapterortc '+sessionId+' 2 IN IP4 127.0.0.1\r\n'+'s=-\r\n'+'t=0 0\r\n';};SDPUtils.writeMediaSection=function(transceiver,caps,type,stream){var sdp=SDPUtils.writeRtpDescription(transceiver.kind,caps);sdp+=SDPUtils.writeIceParameters(transceiver.iceGatherer.getLocalParameters());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';}
+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]};}};SDPUtils.generateSessionId=function(){return Math.random().toString().substr(2,21);};SDPUtils.writeSessionBoilerplate=function(sessId,sessVer){var sessionId;var version=sessVer!==undefined?sessVer:2;if(sessId){sessionId=sessId;}else{sessionId=SDPUtils.generateSessionId();}
+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);sdp+=SDPUtils.writeIceParameters(transceiver.iceGatherer.getLocalParameters());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){var msid='msid:'+stream.id+' '+
transceiver.rtpSender.track.id+'\r\n';sdp+='a='+msid;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+' '+
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;};SDPUtils.getDirection=function(mediaSection,sessionpart){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:}}
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';};module.exports=SDPUtils;},{}],2:[function(require,module,exports){(function(global){'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":3}],3:[function(require,module,exports){'use strict';module.exports=function(dependencies){var window=dependencies&&dependencies.window;var utils=require('./utils');var logging=utils.log;var browserDetails=utils.detectBrowser(window);var adapter={browserDetails:browserDetails,extractVersion:utils.extractVersion,disableLog:utils.disableLog,disableWarnings:utils.disableWarnings};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;switch(browserDetails.browser){case'chrome':if(!chromeShim||!chromeShim.shimPeerConnection){logging('Chrome shim is not included in this adapter release.');return adapter;}
-logging('adapter.js shimming chrome.');adapter.browserShim=chromeShim;chromeShim.shimGetUserMedia(window);chromeShim.shimMediaStream(window);utils.shimCreateObjectURL(window);chromeShim.shimSourceObject(window);chromeShim.shimPeerConnection(window);chromeShim.shimOnTrack(window);chromeShim.shimGetSendersWithDtmf(window);break;case'firefox':if(!firefoxShim||!firefoxShim.shimPeerConnection){logging('Firefox shim is not included in this adapter release.');return adapter;}
-logging('adapter.js shimming firefox.');adapter.browserShim=firefoxShim;firefoxShim.shimGetUserMedia(window);utils.shimCreateObjectURL(window);firefoxShim.shimSourceObject(window);firefoxShim.shimPeerConnection(window);firefoxShim.shimOnTrack(window);break;case'edge':if(!edgeShim||!edgeShim.shimPeerConnection){logging('MS edge shim is not included in this adapter release.');return adapter;}
-logging('adapter.js shimming edge.');adapter.browserShim=edgeShim;edgeShim.shimGetUserMedia(window);utils.shimCreateObjectURL(window);edgeShim.shimPeerConnection(window);edgeShim.shimReplaceTrack(window);break;case'safari':if(!safariShim){logging('Safari shim is not included in this adapter release.');return adapter;}
-logging('adapter.js shimming safari.');adapter.browserShim=safariShim;utils.shimCreateObjectURL(window);safariShim.shimRTCIceServerUrls(window);safariShim.shimCallbacksAPI(window);safariShim.shimLocalStreamsAPI(window);safariShim.shimRemoteStreamsAPI(window);safariShim.shimGetUserMedia(window);break;default:logging('Unsupported browser!');break;}
-return adapter;};},{"./chrome/chrome_shim":4,"./edge/edge_shim":6,"./firefox/firefox_shim":9,"./safari/safari_shim":11,"./utils":12}],4:[function(require,module,exports){'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){var self=this;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.addEventListener('addtrack',function(te){var receiver;if(window.RTCPeerConnection.prototype.getReceivers){receiver=self.getReceivers().find(function(r){return r.track.id===te.track.id;});}else{receiver={track:te.track};}
-var event=new Event('track');event.track=te.track;event.receiver=receiver;event.streams=[e.stream];self.dispatchEvent(event);});e.stream.getTracks().forEach(function(track){var receiver;if(window.RTCPeerConnection.prototype.getReceivers){receiver=self.getReceivers().find(function(r){return r.track.id===track.id;});}else{receiver={track:track};}
-var event=new Event('track');event.track=track;event.receiver=receiver;event.streams=[e.stream];this.dispatchEvent(event);}.bind(this));}.bind(this));}});}},shimGetSendersWithDtmf:function(window){if(typeof window==='object'&&window.RTCPeerConnection&&!('getSenders'in window.RTCPeerConnection.prototype)&&'createDTMFSender'in window.RTCPeerConnection.prototype){window.RTCPeerConnection.prototype.getSenders=function(){return this._senders||[];};var origAddStream=window.RTCPeerConnection.prototype.addStream;var origRemoveStream=window.RTCPeerConnection.prototype.removeStream;if(!window.RTCPeerConnection.prototype.addTrack){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;})){throw new DOMException('The adapter.js addTrack polyfill only supports a single '+' stream which is associated with the specified track.','NotSupportedError');}
-pc._senders=pc._senders||[];var alreadyExists=pc._senders.find(function(t){return t.track===track;});if(alreadyExists){throw new DOMException('Track already exists.','InvalidAccessError');}
-pc._streams=pc._streams||{};var oldStream=pc._streams[stream.id];if(oldStream){oldStream.addTrack(track);pc.removeStream(oldStream);pc.addStream(oldStream);}else{var newStream=new window.MediaStream([track]);pc._streams[stream.id]=newStream;pc.addStream(newStream);}
-var sender={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._senders.push(sender);return sender;};}
-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({track:track,get dtmf(){if(this._dtmf===undefined){if(track.kind==='audio'){this._dtmf=pc.createDTMFSender(track);}else{this._dtmf=null;}}
-return this._dtmf;}});});};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);}});};}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)){Object.defineProperty(window.HTMLMediaElement.prototype,'srcObject',{get:function(){return this._srcObject;},set:function(stream){var self=this;this._srcObject=stream;if(this.src){URL.revokeObjectURL(this.src);}
+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(' ')};};if(typeof module==='object'){module.exports=SDPUtils;}},{}],3:[function(require,module,exports){(function(global){'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){'use strict';var utils=require('./utils');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];}}
+var logging=utils.log;var browserDetails=utils.detectBrowser(window);var adapter={browserDetails:browserDetails,extractVersion:utils.extractVersion,disableLog:utils.disableLog,disableWarnings:utils.disableWarnings};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;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.');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.');adapter.browserShim=firefoxShim;commonShim.shimCreateObjectURL(window);firefoxShim.shimGetUserMedia(window);firefoxShim.shimSourceObject(window);firefoxShim.shimPeerConnection(window);firefoxShim.shimOnTrack(window);firefoxShim.shimRemoveStream(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.');adapter.browserShim=edgeShim;commonShim.shimCreateObjectURL(window);edgeShim.shimGetUserMedia(window);edgeShim.shimPeerConnection(window);edgeShim.shimReplaceTrack(window);break;case'safari':if(!safariShim||!options.shimSafari){logging('Safari shim is not included in this adapter release.');return adapter;}
+logging('adapter.js shimming safari.');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){'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){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){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};};if(!window.RTCPeerConnection.prototype.getSenders){window.RTCPeerConnection.prototype.getSenders=function(){this._senders=this._senders||[];return this._senders.slice();};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);}});};}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)){Object.defineProperty(window.HTMLMediaElement.prototype,'srcObject',{get:function(){return this._srcObject;},set:function(stream){var self=this;this._srcObject=stream;if(this.src){URL.revokeObjectURL(this.src);}
if(!stream){this.src='';return undefined;}
this.src=URL.createObjectURL(stream);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);});}});}}},shimPeerConnection:function(window){var browserDetails=utils.detectBrowser(window);if(!window.RTCPeerConnection){window.RTCPeerConnection=function(pcConfig,pcConstraints){logging('PeerConnection');if(pcConfig&&pcConfig.iceTransportPolicy){pcConfig.iceTransports=pcConfig.iceTransportPolicy;}
-return new window.webkitRTCPeerConnection(pcConfig,pcConstraints);};window.RTCPeerConnection.prototype=window.webkitRTCPeerConnection.prototype;if(window.webkitRTCPeerConnection.generateCertificate){Object.defineProperty(window.RTCPeerConnection,'generateCertificate',{get:function(){return window.webkitRTCPeerConnection.generateCertificate;}});}}else{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')){console.warn('RTCIceServer.url is deprecated! Use urls instead.');server=JSON.parse(JSON.stringify(server));server.urls=server.url;newIceServers.push(server);}else{newIceServers.push(pcConfig.iceServers[i]);}}
+self.src=URL.createObjectURL(stream);});}});}}},shimAddTrackRemoveTrack:function(window){var browserDetails=utils.detectBrowser(window);if(window.RTCPeerConnection.prototype.addTrack&&browserDetails.version>=64){return;}
+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');}});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;})){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){oldStream.addTrack(track);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;});};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);};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');}
+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');}
+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){pc.removeStream(pc._reverseStreams[stream.id]);}else{stream.removeTrack(sender.track);}
+pc.dispatchEvent(new Event('negotiationneeded'));}};},shimPeerConnection:function(window){var browserDetails=utils.detectBrowser(window);if(!window.RTCPeerConnection){window.RTCPeerConnection=function(pcConfig,pcConstraints){logging('PeerConnection');if(pcConfig&&pcConfig.iceTransportPolicy){pcConfig.iceTransports=pcConfig.iceTransportPolicy;}
+return new window.webkitRTCPeerConnection(pcConfig,pcConstraints);};window.RTCPeerConnection.prototype=window.webkitRTCPeerConnection.prototype;if(window.webkitRTCPeerConnection.generateCertificate){Object.defineProperty(window.RTCPeerConnection,'generateCertificate',{get:function(){return window.webkitRTCPeerConnection.generateCertificate;}});}}else{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;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(arguments.length>0&&typeof selector==='function'){return origGetStats.apply(this,arguments);}
return nativeMethod.apply(this,arguments);};});}
['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);};});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);};}};module.exports={shimMediaStream:chromeShim.shimMediaStream,shimOnTrack:chromeShim.shimOnTrack,shimGetSendersWithDtmf:chromeShim.shimGetSendersWithDtmf,shimSourceObject:chromeShim.shimSourceObject,shimPeerConnection:chromeShim.shimPeerConnection,shimGetUserMedia:require('./getusermedia')};},{"../utils.js":12,"./getusermedia":5}],5:[function(require,module,exports){'use strict';var utils=require('../utils.js');var logging=utils.log;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;}
+return nativeAddIceCandidate.apply(this,arguments);};}};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){'use strict';var utils=require('../utils.js');var logging=utils.log;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'){var face=constraints.video.facingMode;face=face&&((typeof face==='object')?face:{ideal:face});var getSupportedFacingModeLies=browserDetails.version<61;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'];}
+return cc;};var shimConstraints_=function(constraints,func){if(browserDetails.version>=61){return func(constraints);}
+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'){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){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];}
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){onError(shimError_(e));});});};navigator.getUserMedia=getUserMedia_;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};}};}
+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_;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};}};}
if(!navigator.mediaDevices.getUserMedia){navigator.mediaDevices.getUserMedia=function(constraints){return getUserMediaPromise_(constraints);};}else{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));});});};}
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":12}],6:[function(require,module,exports){'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){if(!window.RTCIceCandidate){window.RTCIceCandidate=function(args){return args;};}
+if(typeof navigator.mediaDevices.removeEventListener==='undefined'){navigator.mediaDevices.removeEventListener=function(){logging('Dummy mediaDevices.removeEventListener called.');};}};},{"../utils.js":13}],7:[function(require,module,exports){'use strict';var SDPUtils=require('sdp');var utils=require('./utils');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){if(window.RTCIceCandidate&&'foundation'in
+window.RTCIceCandidate.prototype){return;}
+var NativeRTCIceCandidate=window.RTCIceCandidate;window.RTCIceCandidate=function(args){if(typeof args==='object'&&args.candidate&&args.candidate.indexOf('a=')===0){args=JSON.parse(JSON.stringify(args));args.candidate=args.candidate.substr(2);}
+var nativeCandidate=new NativeRTCIceCandidate(args);var parsedCandidate=SDPUtils.parseCandidate(args.candidate);var augmentedCandidate=Object.assign(nativeCandidate,parsedCandidate);augmentedCandidate.toJSON=function(){return{candidate:augmentedCandidate.candidate,sdpMid:augmentedCandidate.sdpMid,sdpMLineIndex:augmentedCandidate.sdpMLineIndex,usernameFragment:augmentedCandidate.usernameFragment,};};return augmentedCandidate;};wrapPeerConnectionEvent(window,'icecandidate',function(e){if(e.candidate){Object.defineProperty(e,'candidate',{value:new window.RTCIceCandidate(e.candidate),writable:'false'});}
+return e;});},shimCreateObjectURL:function(window){var URL=window&&window.URL;if(!(typeof window==='object'&&window.HTMLMediaElement&&'srcObject'in window.HTMLMediaElement.prototype&&URL.createObjectURL&&URL.revokeObjectURL)){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){'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){if(!window.RTCIceCandidate){window.RTCIceCandidate=function(args){return args;};}
if(!window.RTCSessionDescription){window.RTCSessionDescription=function(args){return args;};}
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);}});}}
-window.RTCPeerConnection=shimRTCPeerConnection(window,browserDetails.version);},shimReplaceTrack:function(window){if(window.RTCRtpSender&&!('replaceTrack'in window.RTCRtpSender.prototype)){window.RTCRtpSender.prototype.replaceTrack=window.RTCRtpSender.prototype.setTrack;}}};},{"../utils":12,"./getusermedia":7,"./rtcpeerconnection_shim":8}],7:[function(require,module,exports){'use strict';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;}};};var origGetUserMedia=navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices);navigator.mediaDevices.getUserMedia=function(c){return origGetUserMedia(c).catch(function(e){return Promise.reject(shimError_(e));});};};},{}],8:[function(require,module,exports){'use strict';var SDPUtils=require('sdp');function sortTracks(tracks){var audioTracks=tracks.filter(function(track){return track.kind==='audio';});var videoTracks=tracks.filter(function(track){return track.kind==='video';});tracks=[];while(audioTracks.length||videoTracks.length){if(audioTracks.length){tracks.push(audioTracks.shift());}
-if(videoTracks.length){tracks.push(videoTracks.shift());}}
-return tracks;}
-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;});delete server.url;server.urls=isString?urls[0]:urls;return!!urls.length;}
-return false;});}
-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){if(!rtxCapabilityMatches(lCodec,rCodec,localCapabilities.codecs,remoteCapabilities.codecs)){continue;}}
-rCodec=JSON.parse(JSON.stringify(rCodec));rCodec.numChannels=Math.min(lCodec.numChannels,rCodec.numChannels);commonCapabilities.codecs.push(rCodec);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;});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;}}});return commonCapabilities;}
-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;}
-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.needNegotiation=false;this.onicecandidate=null;this.onaddstream=null;this.ontrack=null;this.onremovestream=null;this.onsignalingstatechange=null;this.oniceconnectionstatechange=null;this.onicegatheringstatechange=null;this.onnegotiationneeded=null;this.ondatachannel=null;this.canTrickleIceCandidates=null;this.localStreams=[];this.remoteStreams=[];this.getLocalStreams=function(){return self.localStreams;};this.getRemoteStreams=function(){return self.remoteStreams;};this.localDescription=new window.RTCSessionDescription({type:'',sdp:''});this.remoteDescription=new window.RTCSessionDescription({type:'',sdp:''});this.signalingState='stable';this.iceConnectionState='new';this.iceGatheringState='new';this.iceOptions={gatherPolicy:'all',iceServers:[]};if(config&&config.iceTransportPolicy){switch(config.iceTransportPolicy){case'all':case'relay':this.iceOptions.gatherPolicy=config.iceTransportPolicy;break;default:break;}}
-this.usingBundle=config&&config.bundlePolicy==='max-bundle';if(config&&config.iceServers){this.iceOptions.iceServers=filterIceServers(config.iceServers,edgeVersion);}
-this._config=config||{};this.transceivers=[];this._localIceCandidatesBuffer=[];this._sdpSessionId=SDPUtils.generateSessionId();};RTCPeerConnection.prototype._emitGatheringStateChange=function(){var event=new Event('icegatheringstatechange');this.dispatchEvent(event);if(this.onicegatheringstatechange!==null){this.onicegatheringstatechange(event);}};RTCPeerConnection.prototype._emitBufferedCandidates=function(){var self=this;var sections=SDPUtils.splitSections(self.localDescription.sdp);this._localIceCandidatesBuffer.forEach(function(event){var end=!event.candidate||Object.keys(event.candidate).length===0;if(end){for(var j=1;j<sections.length;j++){if(sections[j].indexOf('\r\na=end-of-candidates\r\n')===-1){sections[j]+='a=end-of-candidates\r\n';}}}else{sections[event.candidate.sdpMLineIndex+1]+='a='+event.candidate.candidate+'\r\n';}
-self.localDescription.sdp=sections.join('');self.dispatchEvent(event);if(self.onicecandidate!==null){self.onicecandidate(event);}
-if(!event.candidate&&self.iceGatheringState!=='complete'){var complete=self.transceivers.every(function(transceiver){return transceiver.iceGatherer&&transceiver.iceGatherer.state==='completed';});if(complete&&self.iceGatheringStateChange!=='complete'){self.iceGatheringState='complete';self._emitGatheringStateChange();}}});this._localIceCandidatesBuffer=[];};RTCPeerConnection.prototype.getConfiguration=function(){return this._config;};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);}
-transceiver.track=track;transceiver.stream=stream;transceiver.rtpSender=new window.RTCRtpSender(track,transceiver.dtlsTransport);this._maybeFireNegotiationNeeded();return transceiver.rtpSender;};RTCPeerConnection.prototype.addStream=function(stream){var self=this;if(edgeVersion>=15025){this.localStreams.push(stream);stream.getTracks().forEach(function(track){self.addTrack(track,stream);});}else{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);});this.localStreams.push(clonedStream);}
-this._maybeFireNegotiationNeeded();};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(mid,sdpMLineIndex){var self=this;var iceGatherer=new window.RTCIceGatherer(self.iceOptions);iceGatherer.onlocalcandidate=function(evt){var event=new Event('icecandidate');event.candidate={sdpMid:mid,sdpMLineIndex:sdpMLineIndex};var cand=evt.candidate;var end=!cand||Object.keys(cand).length===0;if(end){if(iceGatherer.state===undefined){iceGatherer.state='completed';}}else{cand.component=1;event.candidate.candidate=SDPUtils.writeCandidate(cand);}
-var sections=SDPUtils.splitSections(self.localDescription.sdp);if(!end){sections[event.candidate.sdpMLineIndex+1]+='a='+event.candidate.candidate+'\r\n';}else{sections[event.candidate.sdpMLineIndex+1]+='a=end-of-candidates\r\n';}
-self.localDescription.sdp=sections.join('');var transceivers=self._pendingOffer?self._pendingOffer:self.transceivers;var complete=transceivers.every(function(transceiver){return transceiver.iceGatherer&&transceiver.iceGatherer.state==='completed';});switch(self.iceGatheringState){case'new':if(!end){self._localIceCandidatesBuffer.push(event);}
-if(end&&complete){self._localIceCandidatesBuffer.push(new Event('icecandidate'));}
-break;case'gathering':self._emitBufferedCandidates();if(!end){self.dispatchEvent(event);if(self.onicecandidate!==null){self.onicecandidate(event);}}
-if(complete){self.dispatchEvent(new Event('icecandidate'));if(self.onicecandidate!==null){self.onicecandidate(new Event('icecandidate'));}
-self.iceGatheringState='complete';self._emitGatheringStateChange();}
-break;case'complete':break;default:break;}};return iceGatherer;};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(){Object.defineProperty(dtlsTransport,'state',{value:'failed',writable:true});self._updateConnectionState();};return{iceTransport:iceTransport,dtlsTransport:dtlsTransport};};RTCPeerConnection.prototype._disposeIceAndDtlsTransports=function(sdpMLineIndex){var iceGatherer=this.transceivers[sdpMLineIndex].iceGatherer;if(iceGatherer){delete iceGatherer.onlocalcandidate;delete this.transceivers[sdpMLineIndex].iceGatherer;}
-var iceTransport=this.transceivers[sdpMLineIndex].iceTransport;if(iceTransport){delete iceTransport.onicestatechange;delete this.transceivers[sdpMLineIndex].iceTransport;}
-var dtlsTransport=this.transceivers[sdpMLineIndex].dtlsTransport;if(dtlsTransport){delete dtlsTransport.ondtlssttatechange;delete dtlsTransport.onerror;delete this.transceivers[sdpMLineIndex].dtlsTransport;}};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){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;if(!isActionAllowedInSignalingState('setLocalDescription',description.type,this.signalingState)){var e=new Error('Can not set local '+description.type+' in state '+this.signalingState);e.name='InvalidStateError';if(arguments.length>2&&typeof arguments[2]==='function'){window.setTimeout(arguments[2],0,e);}
-return Promise.reject(e);}
-var sections;var sessionpart;if(description.type==='offer'){if(this._pendingOffer){sections=SDPUtils.splitSections(description.sdp);sessionpart=sections.shift();sections.forEach(function(mediaSection,sdpMLineIndex){var caps=SDPUtils.parseRtpParameters(mediaSection);self._pendingOffer[sdpMLineIndex].localCapabilities=caps;});this.transceivers=this._pendingOffer;delete this._pendingOffer;}}else if(description.type==='answer'){sections=SDPUtils.splitSections(self.remoteDescription.sdp);sessionpart=sections.shift();var isIceLite=SDPUtils.matchPrefix(sessionpart,'a=ice-lite').length>0;sections.forEach(function(mediaSection,sdpMLineIndex){var transceiver=self.transceivers[sdpMLineIndex];var iceGatherer=transceiver.iceGatherer;var iceTransport=transceiver.iceTransport;var dtlsTransport=transceiver.dtlsTransport;var localCapabilities=transceiver.localCapabilities;var remoteCapabilities=transceiver.remoteCapabilities;var rejected=SDPUtils.isRejected(mediaSection);if(!rejected&&!transceiver.isDatachannel){var remoteIceParameters=SDPUtils.getIceParameters(mediaSection,sessionpart);var remoteDtlsParameters=SDPUtils.getDtlsParameters(mediaSection,sessionpart);if(isIceLite){remoteDtlsParameters.role='server';}
-if(!self.usingBundle||sdpMLineIndex===0){iceTransport.start(iceGatherer,remoteIceParameters,isIceLite?'controlling':'controlled');dtlsTransport.start(remoteDtlsParameters);}
-var params=getCommonCapabilities(localCapabilities,remoteCapabilities);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+'"');}
-var hasCallback=arguments.length>1&&typeof arguments[1]==='function';if(hasCallback){var cb=arguments[1];window.setTimeout(function(){cb();if(self.iceGatheringState==='new'){self.iceGatheringState='gathering';self._emitGatheringStateChange();}
-self._emitBufferedCandidates();},0);}
-var p=Promise.resolve();p.then(function(){if(!hasCallback){if(self.iceGatheringState==='new'){self.iceGatheringState='gathering';self._emitGatheringStateChange();}
-window.setTimeout(self._emitBufferedCandidates.bind(self),500);}});return p;};RTCPeerConnection.prototype.setRemoteDescription=function(description){var self=this;if(!isActionAllowedInSignalingState('setRemoteDescription',description.type,this.signalingState)){var e=new Error('Can not set remote '+description.type+' in state '+this.signalingState);e.name='InvalidStateError';if(arguments.length>2&&typeof arguments[2]==='function'){window.setTimeout(arguments[2],0,e);}
-return Promise.reject(e);}
-var streams={};var receiverList=[];var sections=SDPUtils.splitSections(description.sdp);var sessionpart=sections.shift();var isIceLite=SDPUtils.matchPrefix(sessionpart,'a=ice-lite').length>0;var usingBundle=SDPUtils.matchPrefix(sessionpart,'a=group:BUNDLE ').length>0;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);var rejected=SDPUtils.isRejected(mediaSection);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();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;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'||cand.component===1;});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=usingBundle&&sdpMLineIndex>0?self.transceivers[0].iceGatherer:self._createIceGatherer(mid,sdpMLineIndex);}
-if(isComplete&&(!usingBundle||sdpMLineIndex===0)){transceiver.iceTransport.setRemoteCandidates(cands);}
-localCapabilities=window.RTCRtpReceiver.getCapabilities(kind);if(edgeVersion<15019){localCapabilities.codecs=localCapabilities.codecs.filter(function(codec){return codec.name!=='rtx';});}
-sendEncodingParameters=[{ssrc:(2*sdpMLineIndex+2)*1001}];if(direction==='sendrecv'||direction==='sendonly'){rtpReceiver=new window.RTCRtpReceiver(transceiver.dtlsTransport,kind);track=rtpReceiver.track;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;}});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]);}}
-transceiver.localCapabilities=localCapabilities;transceiver.remoteCapabilities=remoteCapabilities;transceiver.rtpReceiver=rtpReceiver;transceiver.rtcpParameters=rtcpParameters;transceiver.sendEncodingParameters=sendEncodingParameters;transceiver.recvEncodingParameters=recvEncodingParameters;self._transceive(self.transceivers[sdpMLineIndex],false,direction==='sendrecv'||direction==='sendonly');}else if(description.type==='answer'&&!rejected){transceiver=self.transceivers[sdpMLineIndex];iceGatherer=transceiver.iceGatherer;iceTransport=transceiver.iceTransport;dtlsTransport=transceiver.dtlsTransport;rtpReceiver=transceiver.rtpReceiver;sendEncodingParameters=transceiver.sendEncodingParameters;localCapabilities=transceiver.localCapabilities;self.transceivers[sdpMLineIndex].recvEncodingParameters=recvEncodingParameters;self.transceivers[sdpMLineIndex].remoteCapabilities=remoteCapabilities;self.transceivers[sdpMLineIndex].rtcpParameters=rtcpParameters;if((isIceLite||isComplete)&&cands.length){iceTransport.setRemoteCandidates(cands);}
-if(!usingBundle||sdpMLineIndex===0){iceTransport.start(iceGatherer,remoteIceParameters,'controlling');dtlsTransport.start(remoteDtlsParameters);}
-self._transceive(transceiver,direction==='sendrecv'||direction==='recvonly',direction==='sendrecv'||direction==='sendonly');if(rtpReceiver&&(direction==='sendrecv'||direction==='sendonly')){track=rtpReceiver.track;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{delete transceiver.rtpReceiver;}}});this.remoteDescription={type:description.type,sdp:description.sdp};switch(description.type){case'offer':this._updateSignalingState('have-remote-offer');break;case'answer':this._updateSignalingState('stable');break;default:throw new TypeError('unsupported type "'+description.type+'"');}
-Object.keys(streams).forEach(function(sid){var stream=streams[sid];if(stream.getTracks().length){self.remoteStreams.push(stream);var event=new Event('addstream');event.stream=stream;self.dispatchEvent(event);if(self.onaddstream!==null){window.setTimeout(function(){self.onaddstream(event);},0);}
-receiverList.forEach(function(item){var track=item[0];var receiver=item[1];if(stream.id!==item[2].id){return;}
-var trackEvent=new Event('track');trackEvent.track=track;trackEvent.receiver=receiver;trackEvent.streams=[stream];self.dispatchEvent(trackEvent);if(self.ontrack!==null){window.setTimeout(function(){self.ontrack(trackEvent);},0);}});}});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);if(arguments.length>1&&typeof arguments[1]==='function'){window.setTimeout(arguments[1],0);}
-return Promise.resolve();};RTCPeerConnection.prototype.close=function(){this.transceivers.forEach(function(transceiver){if(transceiver.iceTransport){transceiver.iceTransport.stop();}
-if(transceiver.dtlsTransport){transceiver.dtlsTransport.stop();}
-if(transceiver.rtpSender){transceiver.rtpSender.stop();}
-if(transceiver.rtpReceiver){transceiver.rtpReceiver.stop();}});this._updateSignalingState('closed');};RTCPeerConnection.prototype._updateSignalingState=function(newState){this.signalingState=newState;var event=new Event('signalingstatechange');this.dispatchEvent(event);if(this.onsignalingstatechange!==null){this.onsignalingstatechange(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(self.onnegotiationneeded!==null){self.onnegotiationneeded(event);}},0);};RTCPeerConnection.prototype._updateConnectionState=function(){var self=this;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]++;});states.connected+=states.completed;newState='new';if(states.failed>0){newState='failed';}else if(states.connecting>0||states.checking>0){newState='connecting';}else if(states.disconnected>0){newState='disconnected';}else if(states.new>0){newState='new';}else if(states.connected>0||states.completed>0){newState='connected';}
-if(newState!==self.iceConnectionState){self.iceConnectionState=newState;var event=new Event('iceconnectionstatechange');this.dispatchEvent(event);if(this.oniceconnectionstatechange!==null){this.oniceconnectionstatechange(event);}}};RTCPeerConnection.prototype.createOffer=function(){var self=this;if(this._pendingOffer){throw new Error('createOffer called while there is a pending offer.');}
-var offerOptions;if(arguments.length===1&&typeof arguments[0]!=='function'){offerOptions=arguments[0];}else if(arguments.length===3){offerOptions=arguments[2];}
-var numAudioTracks=this.transceivers.filter(function(t){return t.kind==='audio';}).length;var numVideoTracks=this.transceivers.filter(function(t){return t.kind==='video';}).length;if(offerOptions){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;}}});while(numAudioTracks>0||numVideoTracks>0){if(numAudioTracks>0){this._createTransceiver('audio');numAudioTracks--;}
-if(numVideoTracks>0){this._createTransceiver('video');numVideoTracks--;}}
-var transceivers=sortTracks(this.transceivers);var sdp=SDPUtils.writeSessionBoilerplate(this._sdpSessionId);transceivers.forEach(function(transceiver,sdpMLineIndex){var track=transceiver.track;var kind=transceiver.kind;var mid=SDPUtils.generateIdentifier();transceiver.mid=mid;if(!transceiver.iceGatherer){transceiver.iceGatherer=self.usingBundle&&sdpMLineIndex>0?transceivers[0].iceGatherer:self._createIceGatherer(mid,sdpMLineIndex);}
-var localCapabilities=window.RTCRtpSender.getCapabilities(kind);if(edgeVersion<15019){localCapabilities.codecs=localCapabilities.codecs.filter(function(codec){return codec.name!=='rtx';});}
-localCapabilities.codecs.forEach(function(codec){if(codec.name==='H264'&&codec.parameters['level-asymmetry-allowed']===undefined){codec.parameters['level-asymmetry-allowed']='1';}});var sendEncodingParameters=[{ssrc:(2*sdpMLineIndex+1)*1001}];if(track){if(edgeVersion>=15019&&kind==='video'){sendEncodingParameters[0].rtx={ssrc:(2*sdpMLineIndex+1)*1001+1};}}
-if(transceiver.wantReceive){transceiver.rtpReceiver=new window.RTCRtpReceiver(transceiver.dtlsTransport,kind);}
-transceiver.localCapabilities=localCapabilities;transceiver.sendEncodingParameters=sendEncodingParameters;});if(this._config.bundlePolicy!=='max-compat'){sdp+='a=group:BUNDLE '+transceivers.map(function(t){return t.mid;}).join(' ')+'\r\n';}
-sdp+='a=ice-options:trickle\r\n';transceivers.forEach(function(transceiver,sdpMLineIndex){sdp+=SDPUtils.writeMediaSection(transceiver,transceiver.localCapabilities,'offer',transceiver.stream);sdp+='a=rtcp-rsize\r\n';});this._pendingOffer=transceivers;var desc=new window.RTCSessionDescription({type:'offer',sdp:sdp});if(arguments.length&&typeof arguments[0]==='function'){window.setTimeout(arguments[0],0,desc);}
-return Promise.resolve(desc);};RTCPeerConnection.prototype.createAnswer=function(){var sdp=SDPUtils.writeSessionBoilerplate(this._sdpSessionId);if(this.usingBundle){sdp+='a=group:BUNDLE '+this.transceivers.map(function(t){return t.mid;}).join(' ')+'\r\n';}
-this.transceivers.forEach(function(transceiver,sdpMLineIndex){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;}
-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){if(edgeVersion>=15019&&transceiver.kind==='video'){transceiver.sendEncodingParameters[0].rtx={ssrc:(2*sdpMLineIndex+2)*1001+1};}}}
-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+=SDPUtils.writeMediaSection(transceiver,commonCapabilities,'answer',transceiver.stream);if(transceiver.rtcpParameters&&transceiver.rtcpParameters.reducedSize){sdp+='a=rtcp-rsize\r\n';}});var desc=new window.RTCSessionDescription({type:'answer',sdp:sdp});if(arguments.length&&typeof arguments[0]==='function'){window.setTimeout(arguments[0],0,desc);}
-return Promise.resolve(desc);};RTCPeerConnection.prototype.addIceCandidate=function(candidate){if(!candidate){for(var j=0;j<this.transceivers.length;j++){this.transceivers[j].iceTransport.addRemoteCandidate({});if(this.usingBundle){return Promise.resolve();}}}else{var mLineIndex=candidate.sdpMLineIndex;if(candidate.sdpMid){for(var i=0;i<this.transceivers.length;i++){if(this.transceivers[i].mid===candidate.sdpMid){mLineIndex=i;break;}}}
-var transceiver=this.transceivers[mLineIndex];if(transceiver){var cand=Object.keys(candidate.candidate).length>0?SDPUtils.parseCandidate(candidate.candidate):{};if(cand.protocol==='tcp'&&(cand.port===0||cand.port===9)){return Promise.resolve();}
-if(cand.component&&!(cand.component==='1'||cand.component===1)){return Promise.resolve();}
-transceiver.iceTransport.addRemoteCandidate(cand);var sections=SDPUtils.splitSections(this.remoteDescription.sdp);sections[mLineIndex+1]+=(cand.type?candidate.candidate.trim():'a=end-of-candidates')+'\r\n';this.remoteDescription.sdp=sections.join('');}}
-if(arguments.length>1&&typeof arguments[1]==='function'){window.setTimeout(arguments[1],0);}
-return Promise.resolve();};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){var results=new Map();Promise.all(promises).then(function(res){res.forEach(function(result){Object.keys(result).forEach(function(id){result[id].type=fixStatsType(result[id]);results.set(id,result[id]);});});if(cb){window.setTimeout(cb,0,results);}
-resolve(results);});});};return RTCPeerConnection;};},{"sdp":1}],9:[function(require,module,exports){'use strict';var utils=require('../utils');var firefoxShim={shimOnTrack:function(window){if(typeof window==='object'&&window.RTCPeerConnection&&!('ontrack'in
+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){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){'use strict';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;}};};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){'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.streams=[e.stream];this.dispatchEvent(event);}.bind(this));}.bind(this));}});}},shimSourceObject:function(window){if(typeof window==='object'){if(window.HTMLMediaElement&&!('srcObject'in window.HTMLMediaElement.prototype)){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;}
+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){if(typeof window==='object'){if(window.HTMLMediaElement&&!('srcObject'in window.HTMLMediaElement.prototype)){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;}
if(!window.RTCPeerConnection){window.RTCPeerConnection=function(pcConfig,pcConstraints){if(browserDetails.version<38){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 nativeAddIceCandidate.apply(this,arguments);};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){try{stats.forEach(function(stat){stat.type=modernStatsTypes[stat.type]||stat.type;});}catch(e){if(e.name!=='TypeError'){throw e;}
stats.forEach(function(stat,i){stats.set(i,Object.assign({},stat,{type:modernStatsTypes[stat.type]||stat.type}));});}}
-return stats;}).then(onSucc,onErr);};}};module.exports={shimOnTrack:firefoxShim.shimOnTrack,shimSourceObject:firefoxShim.shimSourceObject,shimPeerConnection:firefoxShim.shimPeerConnection,shimGetUserMedia:require('./getusermedia')};},{"../utils":12,"./getusermedia":10}],10:[function(require,module,exports){'use strict';var utils=require('../utils');var logging=utils.log;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;}};};var getUserMedia_=function(constraints,onSuccess,onError){var constraintsToFF37_=function(c){if(typeof c!=='object'||c.require){return c;}
+return stats;}).then(onSucc,onErr);};},shimRemoveStream:function(window){if(!window.RTCPeerConnection||'removeStream'in window.RTCPeerConnection.prototype){return;}
+window.RTCPeerConnection.prototype.removeStream=function(stream){var pc=this;utils.deprecated('removeStream','removeTrack');this.getSenders().forEach(function(sender){if(sender.track&&stream.getTracks().indexOf(sender.track)!==-1){pc.removeTrack(sender);}});};}};module.exports={shimOnTrack:firefoxShim.shimOnTrack,shimSourceObject:firefoxShim.shimSourceObject,shimPeerConnection:firefoxShim.shimPeerConnection,shimRemoveStream:firefoxShim.shimRemoveStream,shimGetUserMedia:require('./getusermedia')};},{"../utils":13,"./getusermedia":11}],11:[function(require,module,exports){'use strict';var utils=require('../utils');var logging=utils.log;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;}};};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;}
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);}
-console.warn('navigator.getUserMedia has been replaced by '+'navigator.mediaDevices.getUserMedia');navigator.mediaDevices.getUserMedia(constraints).then(onSuccess,onError);};};},{"../utils":12}],11:[function(require,module,exports){'use strict';var utils=require('../utils');var safariShim={shimLocalStreamsAPI:function(window){if(typeof window!=='object'||!window.RTCPeerConnection){return;}
+utils.deprecated('navigator.getUserMedia','navigator.mediaDevices.getUserMedia');navigator.mediaDevices.getUserMedia(constraints).then(onSuccess,onError);};};},{"../utils":13}],12:[function(require,module,exports){'use strict';var utils=require('../utils');var safariShim={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(!('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);};}
+return _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;}
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){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;Object.defineProperty(window.RTCPeerConnection,'generateCertificate',{get:function(){return OrigPeerConnection.generateCertificate;}});}};module.exports={shimCallbacksAPI:safariShim.shimCallbacksAPI,shimLocalStreamsAPI:safariShim.shimLocalStreamsAPI,shimRemoteStreamsAPI:safariShim.shimRemoteStreamsAPI,shimGetUserMedia:safariShim.shimGetUserMedia,shimRTCIceServerUrls:safariShim.shimRTCIceServerUrls};},{"../utils":12}],12:[function(require,module,exports){'use strict';var logDisabled_=true;var deprecationWarnings_=true;var utils={disableLog:function(bool){if(typeof bool!=='boolean'){return new Error('Argument type: '+typeof bool+'. Please use a boolean.');}
+return new OrigPeerConnection(pcConfig,pcConstraints);};window.RTCPeerConnection.prototype=OrigPeerConnection.prototype;if('generateCertificate'in window.RTCPeerConnection){Object.defineProperty(window.RTCPeerConnection,'generateCertificate',{get:function(){return OrigPeerConnection.generateCertificate;}});}},shimTrackEventTransceiver:function(window){if(typeof window==='object'&&window.RTCPeerConnection&&('receiver'in window.RTCTrackEvent.prototype)&&!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);};}};module.exports={shimCallbacksAPI:safariShim.shimCallbacksAPI,shimLocalStreamsAPI:safariShim.shimLocalStreamsAPI,shimRemoteStreamsAPI:safariShim.shimRemoteStreamsAPI,shimGetUserMedia:safariShim.shimGetUserMedia,shimRTCIceServerUrls:safariShim.shimRTCIceServerUrls,shimTrackEventTransceiver:safariShim.shimTrackEventTransceiver,shimCreateOfferLegacy:safariShim.shimCreateOfferLegacy};},{"../utils":13}],13:[function(require,module,exports){'use strict';var logDisabled_=true;var deprecationWarnings_=true;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';},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);}}},deprecated:function(oldMethod,newMethod){if(!deprecationWarnings_){return;}
console.warn(oldMethod+' is deprecated, please use '+newMethod+' instead.');},extractVersion:function(uastring,expr,pos){var match=uastring.match(expr);return match&&match.length>=pos&&parseInt(match[pos],10);},detectBrowser:function(window){var navigator=window&&window.navigator;var result={};result.browser=null;result.version=null;if(typeof window==='undefined'||!window.navigator){result.browser='Not a browser.';return result;}
if(navigator.mozGetUserMedia){result.browser='firefox';result.version=this.extractVersion(navigator.userAgent,/Firefox\/(\d+)\./,1);}else if(navigator.webkitGetUserMedia){if(window.webkitRTCPeerConnection){result.browser='chrome';result.version=this.extractVersion(navigator.userAgent,/Chrom(e|ium)\/(\d+)\./,2);}else{if(navigator.userAgent.match(/Version\/(\d+).(\d+)/)){result.browser='safari';result.version=this.extractVersion(navigator.userAgent,/AppleWebKit\/(\d+)\./,1);}else{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+)$/)){result.browser='edge';result.version=this.extractVersion(navigator.userAgent,/Edge\/(\d+).(\d+)$/,2);}else if(navigator.mediaDevices&&navigator.userAgent.match(/AppleWebKit\/(\d+)\./)){result.browser='safari';result.version=this.extractVersion(navigator.userAgent,/AppleWebKit\/(\d+)\./,1);}else{result.browser='Not a supported browser.';return result;}
-return result;},shimCreateObjectURL:function(window){var URL=window&&window.URL;if(!(typeof window==='object'&&window.HTMLMediaElement&&'srcObject'in window.HTMLMediaElement.prototype)){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);};}};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)};},{}]},{},[2])(2)});
\ No newline at end of file
+return result;},};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)});
\ No newline at end of file
self.peer=FSRTCPeerConnection({type:self.type,attachStream:self.localStream,onICE:function(candidate){return onICE(self,candidate);},onICEComplete:function(){return onICEComplete(self);},onRemoteStream:screen?function(stream){}:function(stream){return onRemoteStream(self,stream);},onOfferSDP:function(sdp){return onOfferSDP(self,sdp);},onICESDP:function(sdp){return onICESDP(self,sdp);},onChannelError:function(e){return onChannelError(self,e);},constraints:self.constraints,iceServers:self.options.iceServers,});onStreamSuccess(self,stream);}
function onError(e){onStreamError(self,e);}
var mediaParams=getMediaParams(self);console.log("Audio constraints",mediaParams.audio);console.log("Video constraints",mediaParams.video);if(mediaParams.audio||mediaParams.video){getUserMedia({constraints:{audio:mediaParams.audio,video:mediaParams.video},video:mediaParams.useVideo,onsuccess:onSuccess,onerror:onError});}else{onSuccess(null);}};function FSRTCPeerConnection(options){var gathering=false,done=false;var config={};var default_ice={urls:['stun:stun.l.google.com:19302']};if(options.iceServers){if(typeof(options.iceServers)==="boolean"){config.iceServers=[default_ice];}else{config.iceServers=options.iceServers;}}
-var peer=new window.RTCPeerConnection(config);openOffererChannel();var x=0;function ice_handler(){done=true;gathering=null;if(options.onICEComplete){options.onICEComplete();}
+config.bundlePolicy="max-compat";var peer=new window.RTCPeerConnection(config);openOffererChannel();var x=0;function ice_handler(){done=true;gathering=null;if(options.onICEComplete){options.onICEComplete();}
if(options.type=="offer"){options.onICESDP(peer.localDescription);}else{if(!x&&options.onICESDP){options.onICESDP(peer.localDescription);}}}
peer.onicecandidate=function(event){if(done){return;}
if(!gathering){gathering=setTimeout(ice_handler,1000);}
verto.sendMethod("verto.broadcast",msg);};$.verto.prototype.purge=function(callID){var verto=this;var x=0;var i;for(i in verto.dialogs){if(!x){console.log("purging dialogs");}
x++;verto.dialogs[i].setState($.verto.enum.state.purge);}
for(i in verto.eventSUBS){if(verto.eventSUBS[i]){console.log("purging subscription: "+i);delete verto.eventSUBS[i];}}};$.verto.prototype.hangup=function(callID){var verto=this;if(callID){var dialog=verto.dialogs[callID];if(dialog){dialog.hangup();}}else{for(var i in verto.dialogs){verto.dialogs[i].hangup();}}};$.verto.prototype.newCall=function(args,callbacks){var verto=this;if(!verto.rpcClient.socketReady()){console.error("Not Connected...");return;}
+if(args["useCamera"]){verto.options.deviceParams["useCamera"]=args["useCamera"];}
var dialog=new $.verto.dialog($.verto.enum.direction.outbound,this,args);dialog.invite();if(callbacks){dialog.callbacks=callbacks;}
return dialog;};$.verto.prototype.handleMessage=function(data){var verto=this;if(!(data&&data.method)){console.error("Invalid Data",data);return;}
if(data.params.callID){var dialog=verto.dialogs[data.params.callID];if(data.method==="verto.attach"&&dialog){delete dialog.verto.dialogs[dialog.callID];dialog.rtc.stop();dialog=null;}
navigator.mediaDevices.enumerateDevices().then(checkTypes).catch(handleError);};$.verto.refreshDevices=function(runtime){checkDevices(runtime);}
$.verto.init=function(obj,runtime){if(!obj){obj={};}
if(!obj.skipPermCheck&&!obj.skipDeviceCheck){$.FSRTC.checkPerms(function(status){checkDevices(runtime);},true,true);}else if(obj.skipPermCheck&&!obj.skipDeviceCheck){checkDevices(runtime);}else if(!obj.skipPermCheck&&obj.skipDeviceCheck){$.FSRTC.checkPerms(function(status){runtime(status);},true,true);}else{runtime(null);}}
-$.verto.genUUID=function(){return generateGUID();}})(jQuery);(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){'use strict';var SDPUtils={};SDPUtils.generateIdentifier=function(){return Math.random().toString(36).substr(2,10);};SDPUtils.localCName=SDPUtils.generateIdentifier();SDPUtils.splitLines=function(blob){return blob.trim().split('\n').map(function(line){return line.trim();});};SDPUtils.splitSections=function(blob){var parts=blob.split('\nm=');return parts.map(function(part,index){return(index>0?'m='+part:part).trim()+'\r\n';});};SDPUtils.matchPrefix=function(blob,prefix){return SDPUtils.splitLines(blob).filter(function(line){return line.indexOf(prefix)===0;});};SDPUtils.parseCandidate=function(line){var parts;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),type:parts[7]};for(var i=8;i<parts.length;i+=2){switch(parts[i]){case'raddr':candidate.relatedAddress=parts[i+1];break;case'rport':candidate.relatedPort=parseInt(parts[i+1],10);break;case'tcptype':candidate.tcpType=parts[i+1];break;default:candidate[parts[i]]=parts[i+1];break;}}
+$.verto.genUUID=function(){return generateGUID();}})(jQuery);(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){'use strict';var SDPUtils=require('sdp');function writeMediaSection(transceiver,caps,type,stream,dtlsRole){var sdp=SDPUtils.writeRtpDescription(transceiver.kind,caps);sdp+=SDPUtils.writeIceParameters(transceiver.iceGatherer.getLocalParameters());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){var msid='msid:'+stream.id+' '+
+transceiver.rtpSender.track.id+'\r\n';sdp+='a='+msid;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';}}
+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;}
+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;});}
+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){if(!rtxCapabilityMatches(lCodec,rCodec,localCapabilities.codecs,remoteCapabilities.codecs)){continue;}}
+rCodec=JSON.parse(JSON.stringify(rCodec));rCodec.numChannels=Math.min(lCodec.numChannels,rCodec.numChannels);commonCapabilities.codecs.push(rCodec);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;});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;}}});return commonCapabilities;}
+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){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;this.transceivers=[];this._sdpSessionId=SDPUtils.generateSessionId();this._sdpSessionVersion=0;this._dtlsRole=undefined;};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;};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{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;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;};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){return;}
+var event=new Event('icecandidate');event.candidate={sdpMid:mid,sdpMLineIndex:sdpMLineIndex};var cand=evt.candidate;var end=!cand||Object.keys(cand).length===0;if(end){if(iceGatherer.state==='new'||iceGatherer.state==='gathering'){iceGatherer.state='completed';}}else{if(iceGatherer.state==='new'){iceGatherer.state='gathering';}
+cand.component=1;event.candidate.candidate=SDPUtils.writeCandidate(cand);}
+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();}
+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();}};window.setTimeout(function(){candidates.forEach(function(candidate){var e=new Event('RTCIceGatherEvent');e.candidate=candidate;iceGatherer.onlocalcandidate(e);});},0);};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(){Object.defineProperty(dtlsTransport,'state',{value:'failed',writable:true});self._updateConnectionState();};return{iceTransport:iceTransport,dtlsTransport:dtlsTransport};};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;}};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&¶ms.codecs.length>0){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'){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;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);}}
+var params=getCommonCapabilities(localCapabilities,remoteCapabilities);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+'"');}
+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);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();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;var remoteCapabilities=SDPUtils.parseRtpParameters(mediaSection);var remoteIceParameters;var remoteDtlsParameters;if(!rejected){remoteIceParameters=SDPUtils.getIceParameters(mediaSection,sessionpart);remoteDtlsParameters=SDPUtils.getDtlsParameters(mediaSection,sessionpart);remoteDtlsParameters.role='client';}
+recvEncodingParameters=SDPUtils.parseRtpEncodingParameters(mediaSection);var rtcpParameters=SDPUtils.parseRtcpParameters(mediaSection);var isComplete=SDPUtils.matchPrefix(mediaSection,'a=end-of-candidates',sessionpart).length>0;var cands=SDPUtils.matchPrefix(mediaSection,'a=candidate:').map(function(cand){return SDPUtils.parseCandidate(cand);}).filter(function(cand){return cand.component===1;});if((description.type==='offer'||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);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;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;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{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);}});});}});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){if(transceiver.iceTransport){transceiver.iceTransport.stop();}
+if(transceiver.dtlsTransport){transceiver.dtlsTransport.stop();}
+if(transceiver.rtpSender){transceiver.rtpSender.stop();}
+if(transceiver.rtpReceiver){transceiver.rtpReceiver.stop();}});this._updateSignalingState('closed');};RTCPeerConnection.prototype._updateSignalingState=function(newState){this.signalingState=newState;var event=new Event('signalingstatechange');this.dispatchEvent(event);if(typeof this.onsignalingstatechange==='function'){this.onsignalingstatechange(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);};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]++;});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;if(offerOptions){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;}}});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){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);if(edgeVersion<15019){localCapabilities.codecs=localCapabilities.codecs.filter(function(codec){return codec.name!=='rtx';});}
+localCapabilities.codecs.forEach(function(codec){if(codec.name==='H264'&&codec.parameters['level-asymmetry-allowed']===undefined){codec.parameters['level-asymmetry-allowed']='1';}});var sendEncodingParameters=transceiver.sendEncodingParameters||[{ssrc:(2*sdpMLineIndex+1)*1001}];if(track){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;});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;}
+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){if(edgeVersion>=15019&&transceiver.kind==='video'&&!transceiver.sendEncodingParameters[0].rtx){transceiver.sendEncodingParameters[0].rtx={ssrc:transceiver.sendEncodingParameters[0].ssrc+1};}}}
+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):{};if(cand.protocol==='tcp'&&(cand.port===0||cand.port===9)){return Promise.resolve();}
+if(cand.component&&cand.component!==1){return Promise.resolve();}
+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){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){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){'use strict';var SDPUtils={};SDPUtils.generateIdentifier=function(){return Math.random().toString(36).substr(2,10);};SDPUtils.localCName=SDPUtils.generateIdentifier();SDPUtils.splitLines=function(blob){return blob.trim().split('\n').map(function(line){return line.trim();});};SDPUtils.splitSections=function(blob){var parts=blob.split('\nm=');return parts.map(function(part,index){return(index>0?'m='+part:part).trim()+'\r\n';});};SDPUtils.matchPrefix=function(blob,prefix){return SDPUtils.splitLines(blob).filter(function(line){return line.indexOf(prefix)===0;});};SDPUtils.parseCandidate=function(line){var parts;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),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];candidate.usernameFragment=parts[i+1];break;default:candidate[parts[i]]=parts[i+1];break;}}
return candidate;};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);sdp.push('rport');sdp.push(candidate.relatedPort);}
if(candidate.tcpType&&candidate.protocol.toLowerCase()==='tcp'){sdp.push('tcptype');sdp.push(candidate.tcpType);}
if(candidate.ufrag){sdp.push('ufrag');sdp.push(candidate.ufrag);}
encodingParameters.forEach(function(params){params.maxBitrate=bandwidth;});}
return encodingParameters;};SDPUtils.parseRtcpParameters=function(mediaSection){var rtcpParameters={};var cname;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;}
var rsize=SDPUtils.matchPrefix(mediaSection,'a=rtcp-rsize');rtcpParameters.reducedSize=rsize.length>0;rtcpParameters.compound=rsize.length===0;var mux=SDPUtils.matchPrefix(mediaSection,'a=rtcp-mux');rtcpParameters.mux=mux.length>0;return rtcpParameters;};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]};}};SDPUtils.generateSessionId=function(){return Math.random().toString().substr(2,21);};SDPUtils.writeSessionBoilerplate=function(sessId){var sessionId;if(sessId){sessionId=sessId;}else{sessionId=SDPUtils.generateSessionId();}
-return'v=0\r\n'+'o=thisisadapterortc '+sessionId+' 2 IN IP4 127.0.0.1\r\n'+'s=-\r\n'+'t=0 0\r\n';};SDPUtils.writeMediaSection=function(transceiver,caps,type,stream){var sdp=SDPUtils.writeRtpDescription(transceiver.kind,caps);sdp+=SDPUtils.writeIceParameters(transceiver.iceGatherer.getLocalParameters());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';}
+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]};}};SDPUtils.generateSessionId=function(){return Math.random().toString().substr(2,21);};SDPUtils.writeSessionBoilerplate=function(sessId,sessVer){var sessionId;var version=sessVer!==undefined?sessVer:2;if(sessId){sessionId=sessId;}else{sessionId=SDPUtils.generateSessionId();}
+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);sdp+=SDPUtils.writeIceParameters(transceiver.iceGatherer.getLocalParameters());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){var msid='msid:'+stream.id+' '+
transceiver.rtpSender.track.id+'\r\n';sdp+='a='+msid;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+' '+
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;};SDPUtils.getDirection=function(mediaSection,sessionpart){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:}}
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';};module.exports=SDPUtils;},{}],2:[function(require,module,exports){(function(global){'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":3}],3:[function(require,module,exports){'use strict';module.exports=function(dependencies){var window=dependencies&&dependencies.window;var utils=require('./utils');var logging=utils.log;var browserDetails=utils.detectBrowser(window);var adapter={browserDetails:browserDetails,extractVersion:utils.extractVersion,disableLog:utils.disableLog,disableWarnings:utils.disableWarnings};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;switch(browserDetails.browser){case'chrome':if(!chromeShim||!chromeShim.shimPeerConnection){logging('Chrome shim is not included in this adapter release.');return adapter;}
-logging('adapter.js shimming chrome.');adapter.browserShim=chromeShim;chromeShim.shimGetUserMedia(window);chromeShim.shimMediaStream(window);utils.shimCreateObjectURL(window);chromeShim.shimSourceObject(window);chromeShim.shimPeerConnection(window);chromeShim.shimOnTrack(window);chromeShim.shimGetSendersWithDtmf(window);break;case'firefox':if(!firefoxShim||!firefoxShim.shimPeerConnection){logging('Firefox shim is not included in this adapter release.');return adapter;}
-logging('adapter.js shimming firefox.');adapter.browserShim=firefoxShim;firefoxShim.shimGetUserMedia(window);utils.shimCreateObjectURL(window);firefoxShim.shimSourceObject(window);firefoxShim.shimPeerConnection(window);firefoxShim.shimOnTrack(window);break;case'edge':if(!edgeShim||!edgeShim.shimPeerConnection){logging('MS edge shim is not included in this adapter release.');return adapter;}
-logging('adapter.js shimming edge.');adapter.browserShim=edgeShim;edgeShim.shimGetUserMedia(window);utils.shimCreateObjectURL(window);edgeShim.shimPeerConnection(window);edgeShim.shimReplaceTrack(window);break;case'safari':if(!safariShim){logging('Safari shim is not included in this adapter release.');return adapter;}
-logging('adapter.js shimming safari.');adapter.browserShim=safariShim;utils.shimCreateObjectURL(window);safariShim.shimRTCIceServerUrls(window);safariShim.shimCallbacksAPI(window);safariShim.shimLocalStreamsAPI(window);safariShim.shimRemoteStreamsAPI(window);safariShim.shimGetUserMedia(window);break;default:logging('Unsupported browser!');break;}
-return adapter;};},{"./chrome/chrome_shim":4,"./edge/edge_shim":6,"./firefox/firefox_shim":9,"./safari/safari_shim":11,"./utils":12}],4:[function(require,module,exports){'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){var self=this;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.addEventListener('addtrack',function(te){var receiver;if(window.RTCPeerConnection.prototype.getReceivers){receiver=self.getReceivers().find(function(r){return r.track.id===te.track.id;});}else{receiver={track:te.track};}
-var event=new Event('track');event.track=te.track;event.receiver=receiver;event.streams=[e.stream];self.dispatchEvent(event);});e.stream.getTracks().forEach(function(track){var receiver;if(window.RTCPeerConnection.prototype.getReceivers){receiver=self.getReceivers().find(function(r){return r.track.id===track.id;});}else{receiver={track:track};}
-var event=new Event('track');event.track=track;event.receiver=receiver;event.streams=[e.stream];this.dispatchEvent(event);}.bind(this));}.bind(this));}});}},shimGetSendersWithDtmf:function(window){if(typeof window==='object'&&window.RTCPeerConnection&&!('getSenders'in window.RTCPeerConnection.prototype)&&'createDTMFSender'in window.RTCPeerConnection.prototype){window.RTCPeerConnection.prototype.getSenders=function(){return this._senders||[];};var origAddStream=window.RTCPeerConnection.prototype.addStream;var origRemoveStream=window.RTCPeerConnection.prototype.removeStream;if(!window.RTCPeerConnection.prototype.addTrack){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;})){throw new DOMException('The adapter.js addTrack polyfill only supports a single '+' stream which is associated with the specified track.','NotSupportedError');}
-pc._senders=pc._senders||[];var alreadyExists=pc._senders.find(function(t){return t.track===track;});if(alreadyExists){throw new DOMException('Track already exists.','InvalidAccessError');}
-pc._streams=pc._streams||{};var oldStream=pc._streams[stream.id];if(oldStream){oldStream.addTrack(track);pc.removeStream(oldStream);pc.addStream(oldStream);}else{var newStream=new window.MediaStream([track]);pc._streams[stream.id]=newStream;pc.addStream(newStream);}
-var sender={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._senders.push(sender);return sender;};}
-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({track:track,get dtmf(){if(this._dtmf===undefined){if(track.kind==='audio'){this._dtmf=pc.createDTMFSender(track);}else{this._dtmf=null;}}
-return this._dtmf;}});});};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);}});};}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)){Object.defineProperty(window.HTMLMediaElement.prototype,'srcObject',{get:function(){return this._srcObject;},set:function(stream){var self=this;this._srcObject=stream;if(this.src){URL.revokeObjectURL(this.src);}
+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(' ')};};if(typeof module==='object'){module.exports=SDPUtils;}},{}],3:[function(require,module,exports){(function(global){'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){'use strict';var utils=require('./utils');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];}}
+var logging=utils.log;var browserDetails=utils.detectBrowser(window);var adapter={browserDetails:browserDetails,extractVersion:utils.extractVersion,disableLog:utils.disableLog,disableWarnings:utils.disableWarnings};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;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.');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.');adapter.browserShim=firefoxShim;commonShim.shimCreateObjectURL(window);firefoxShim.shimGetUserMedia(window);firefoxShim.shimSourceObject(window);firefoxShim.shimPeerConnection(window);firefoxShim.shimOnTrack(window);firefoxShim.shimRemoveStream(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.');adapter.browserShim=edgeShim;commonShim.shimCreateObjectURL(window);edgeShim.shimGetUserMedia(window);edgeShim.shimPeerConnection(window);edgeShim.shimReplaceTrack(window);break;case'safari':if(!safariShim||!options.shimSafari){logging('Safari shim is not included in this adapter release.');return adapter;}
+logging('adapter.js shimming safari.');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){'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){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){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};};if(!window.RTCPeerConnection.prototype.getSenders){window.RTCPeerConnection.prototype.getSenders=function(){this._senders=this._senders||[];return this._senders.slice();};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);}});};}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)){Object.defineProperty(window.HTMLMediaElement.prototype,'srcObject',{get:function(){return this._srcObject;},set:function(stream){var self=this;this._srcObject=stream;if(this.src){URL.revokeObjectURL(this.src);}
if(!stream){this.src='';return undefined;}
this.src=URL.createObjectURL(stream);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);});}});}}},shimPeerConnection:function(window){var browserDetails=utils.detectBrowser(window);if(!window.RTCPeerConnection){window.RTCPeerConnection=function(pcConfig,pcConstraints){logging('PeerConnection');if(pcConfig&&pcConfig.iceTransportPolicy){pcConfig.iceTransports=pcConfig.iceTransportPolicy;}
-return new window.webkitRTCPeerConnection(pcConfig,pcConstraints);};window.RTCPeerConnection.prototype=window.webkitRTCPeerConnection.prototype;if(window.webkitRTCPeerConnection.generateCertificate){Object.defineProperty(window.RTCPeerConnection,'generateCertificate',{get:function(){return window.webkitRTCPeerConnection.generateCertificate;}});}}else{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')){console.warn('RTCIceServer.url is deprecated! Use urls instead.');server=JSON.parse(JSON.stringify(server));server.urls=server.url;newIceServers.push(server);}else{newIceServers.push(pcConfig.iceServers[i]);}}
+self.src=URL.createObjectURL(stream);});}});}}},shimAddTrackRemoveTrack:function(window){var browserDetails=utils.detectBrowser(window);if(window.RTCPeerConnection.prototype.addTrack&&browserDetails.version>=64){return;}
+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');}});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;})){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){oldStream.addTrack(track);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;});};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);};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');}
+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');}
+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){pc.removeStream(pc._reverseStreams[stream.id]);}else{stream.removeTrack(sender.track);}
+pc.dispatchEvent(new Event('negotiationneeded'));}};},shimPeerConnection:function(window){var browserDetails=utils.detectBrowser(window);if(!window.RTCPeerConnection){window.RTCPeerConnection=function(pcConfig,pcConstraints){logging('PeerConnection');if(pcConfig&&pcConfig.iceTransportPolicy){pcConfig.iceTransports=pcConfig.iceTransportPolicy;}
+return new window.webkitRTCPeerConnection(pcConfig,pcConstraints);};window.RTCPeerConnection.prototype=window.webkitRTCPeerConnection.prototype;if(window.webkitRTCPeerConnection.generateCertificate){Object.defineProperty(window.RTCPeerConnection,'generateCertificate',{get:function(){return window.webkitRTCPeerConnection.generateCertificate;}});}}else{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;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(arguments.length>0&&typeof selector==='function'){return origGetStats.apply(this,arguments);}
return nativeMethod.apply(this,arguments);};});}
['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);};});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);};}};module.exports={shimMediaStream:chromeShim.shimMediaStream,shimOnTrack:chromeShim.shimOnTrack,shimGetSendersWithDtmf:chromeShim.shimGetSendersWithDtmf,shimSourceObject:chromeShim.shimSourceObject,shimPeerConnection:chromeShim.shimPeerConnection,shimGetUserMedia:require('./getusermedia')};},{"../utils.js":12,"./getusermedia":5}],5:[function(require,module,exports){'use strict';var utils=require('../utils.js');var logging=utils.log;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;}
+return nativeAddIceCandidate.apply(this,arguments);};}};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){'use strict';var utils=require('../utils.js');var logging=utils.log;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'){var face=constraints.video.facingMode;face=face&&((typeof face==='object')?face:{ideal:face});var getSupportedFacingModeLies=browserDetails.version<61;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'];}
+return cc;};var shimConstraints_=function(constraints,func){if(browserDetails.version>=61){return func(constraints);}
+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'){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){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];}
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){onError(shimError_(e));});});};navigator.getUserMedia=getUserMedia_;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};}};}
+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_;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};}};}
if(!navigator.mediaDevices.getUserMedia){navigator.mediaDevices.getUserMedia=function(constraints){return getUserMediaPromise_(constraints);};}else{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));});});};}
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":12}],6:[function(require,module,exports){'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){if(!window.RTCIceCandidate){window.RTCIceCandidate=function(args){return args;};}
+if(typeof navigator.mediaDevices.removeEventListener==='undefined'){navigator.mediaDevices.removeEventListener=function(){logging('Dummy mediaDevices.removeEventListener called.');};}};},{"../utils.js":13}],7:[function(require,module,exports){'use strict';var SDPUtils=require('sdp');var utils=require('./utils');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){if(window.RTCIceCandidate&&'foundation'in
+window.RTCIceCandidate.prototype){return;}
+var NativeRTCIceCandidate=window.RTCIceCandidate;window.RTCIceCandidate=function(args){if(typeof args==='object'&&args.candidate&&args.candidate.indexOf('a=')===0){args=JSON.parse(JSON.stringify(args));args.candidate=args.candidate.substr(2);}
+var nativeCandidate=new NativeRTCIceCandidate(args);var parsedCandidate=SDPUtils.parseCandidate(args.candidate);var augmentedCandidate=Object.assign(nativeCandidate,parsedCandidate);augmentedCandidate.toJSON=function(){return{candidate:augmentedCandidate.candidate,sdpMid:augmentedCandidate.sdpMid,sdpMLineIndex:augmentedCandidate.sdpMLineIndex,usernameFragment:augmentedCandidate.usernameFragment,};};return augmentedCandidate;};wrapPeerConnectionEvent(window,'icecandidate',function(e){if(e.candidate){Object.defineProperty(e,'candidate',{value:new window.RTCIceCandidate(e.candidate),writable:'false'});}
+return e;});},shimCreateObjectURL:function(window){var URL=window&&window.URL;if(!(typeof window==='object'&&window.HTMLMediaElement&&'srcObject'in window.HTMLMediaElement.prototype&&URL.createObjectURL&&URL.revokeObjectURL)){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){'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){if(!window.RTCIceCandidate){window.RTCIceCandidate=function(args){return args;};}
if(!window.RTCSessionDescription){window.RTCSessionDescription=function(args){return args;};}
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);}});}}
-window.RTCPeerConnection=shimRTCPeerConnection(window,browserDetails.version);},shimReplaceTrack:function(window){if(window.RTCRtpSender&&!('replaceTrack'in window.RTCRtpSender.prototype)){window.RTCRtpSender.prototype.replaceTrack=window.RTCRtpSender.prototype.setTrack;}}};},{"../utils":12,"./getusermedia":7,"./rtcpeerconnection_shim":8}],7:[function(require,module,exports){'use strict';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;}};};var origGetUserMedia=navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices);navigator.mediaDevices.getUserMedia=function(c){return origGetUserMedia(c).catch(function(e){return Promise.reject(shimError_(e));});};};},{}],8:[function(require,module,exports){'use strict';var SDPUtils=require('sdp');function sortTracks(tracks){var audioTracks=tracks.filter(function(track){return track.kind==='audio';});var videoTracks=tracks.filter(function(track){return track.kind==='video';});tracks=[];while(audioTracks.length||videoTracks.length){if(audioTracks.length){tracks.push(audioTracks.shift());}
-if(videoTracks.length){tracks.push(videoTracks.shift());}}
-return tracks;}
-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;});delete server.url;server.urls=isString?urls[0]:urls;return!!urls.length;}
-return false;});}
-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){if(!rtxCapabilityMatches(lCodec,rCodec,localCapabilities.codecs,remoteCapabilities.codecs)){continue;}}
-rCodec=JSON.parse(JSON.stringify(rCodec));rCodec.numChannels=Math.min(lCodec.numChannels,rCodec.numChannels);commonCapabilities.codecs.push(rCodec);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;});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;}}});return commonCapabilities;}
-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;}
-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.needNegotiation=false;this.onicecandidate=null;this.onaddstream=null;this.ontrack=null;this.onremovestream=null;this.onsignalingstatechange=null;this.oniceconnectionstatechange=null;this.onicegatheringstatechange=null;this.onnegotiationneeded=null;this.ondatachannel=null;this.canTrickleIceCandidates=null;this.localStreams=[];this.remoteStreams=[];this.getLocalStreams=function(){return self.localStreams;};this.getRemoteStreams=function(){return self.remoteStreams;};this.localDescription=new window.RTCSessionDescription({type:'',sdp:''});this.remoteDescription=new window.RTCSessionDescription({type:'',sdp:''});this.signalingState='stable';this.iceConnectionState='new';this.iceGatheringState='new';this.iceOptions={gatherPolicy:'all',iceServers:[]};if(config&&config.iceTransportPolicy){switch(config.iceTransportPolicy){case'all':case'relay':this.iceOptions.gatherPolicy=config.iceTransportPolicy;break;default:break;}}
-this.usingBundle=config&&config.bundlePolicy==='max-bundle';if(config&&config.iceServers){this.iceOptions.iceServers=filterIceServers(config.iceServers,edgeVersion);}
-this._config=config||{};this.transceivers=[];this._localIceCandidatesBuffer=[];this._sdpSessionId=SDPUtils.generateSessionId();};RTCPeerConnection.prototype._emitGatheringStateChange=function(){var event=new Event('icegatheringstatechange');this.dispatchEvent(event);if(this.onicegatheringstatechange!==null){this.onicegatheringstatechange(event);}};RTCPeerConnection.prototype._emitBufferedCandidates=function(){var self=this;var sections=SDPUtils.splitSections(self.localDescription.sdp);this._localIceCandidatesBuffer.forEach(function(event){var end=!event.candidate||Object.keys(event.candidate).length===0;if(end){for(var j=1;j<sections.length;j++){if(sections[j].indexOf('\r\na=end-of-candidates\r\n')===-1){sections[j]+='a=end-of-candidates\r\n';}}}else{sections[event.candidate.sdpMLineIndex+1]+='a='+event.candidate.candidate+'\r\n';}
-self.localDescription.sdp=sections.join('');self.dispatchEvent(event);if(self.onicecandidate!==null){self.onicecandidate(event);}
-if(!event.candidate&&self.iceGatheringState!=='complete'){var complete=self.transceivers.every(function(transceiver){return transceiver.iceGatherer&&transceiver.iceGatherer.state==='completed';});if(complete&&self.iceGatheringStateChange!=='complete'){self.iceGatheringState='complete';self._emitGatheringStateChange();}}});this._localIceCandidatesBuffer=[];};RTCPeerConnection.prototype.getConfiguration=function(){return this._config;};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);}
-transceiver.track=track;transceiver.stream=stream;transceiver.rtpSender=new window.RTCRtpSender(track,transceiver.dtlsTransport);this._maybeFireNegotiationNeeded();return transceiver.rtpSender;};RTCPeerConnection.prototype.addStream=function(stream){var self=this;if(edgeVersion>=15025){this.localStreams.push(stream);stream.getTracks().forEach(function(track){self.addTrack(track,stream);});}else{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);});this.localStreams.push(clonedStream);}
-this._maybeFireNegotiationNeeded();};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(mid,sdpMLineIndex){var self=this;var iceGatherer=new window.RTCIceGatherer(self.iceOptions);iceGatherer.onlocalcandidate=function(evt){var event=new Event('icecandidate');event.candidate={sdpMid:mid,sdpMLineIndex:sdpMLineIndex};var cand=evt.candidate;var end=!cand||Object.keys(cand).length===0;if(end){if(iceGatherer.state===undefined){iceGatherer.state='completed';}}else{cand.component=1;event.candidate.candidate=SDPUtils.writeCandidate(cand);}
-var sections=SDPUtils.splitSections(self.localDescription.sdp);if(!end){sections[event.candidate.sdpMLineIndex+1]+='a='+event.candidate.candidate+'\r\n';}else{sections[event.candidate.sdpMLineIndex+1]+='a=end-of-candidates\r\n';}
-self.localDescription.sdp=sections.join('');var transceivers=self._pendingOffer?self._pendingOffer:self.transceivers;var complete=transceivers.every(function(transceiver){return transceiver.iceGatherer&&transceiver.iceGatherer.state==='completed';});switch(self.iceGatheringState){case'new':if(!end){self._localIceCandidatesBuffer.push(event);}
-if(end&&complete){self._localIceCandidatesBuffer.push(new Event('icecandidate'));}
-break;case'gathering':self._emitBufferedCandidates();if(!end){self.dispatchEvent(event);if(self.onicecandidate!==null){self.onicecandidate(event);}}
-if(complete){self.dispatchEvent(new Event('icecandidate'));if(self.onicecandidate!==null){self.onicecandidate(new Event('icecandidate'));}
-self.iceGatheringState='complete';self._emitGatheringStateChange();}
-break;case'complete':break;default:break;}};return iceGatherer;};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(){Object.defineProperty(dtlsTransport,'state',{value:'failed',writable:true});self._updateConnectionState();};return{iceTransport:iceTransport,dtlsTransport:dtlsTransport};};RTCPeerConnection.prototype._disposeIceAndDtlsTransports=function(sdpMLineIndex){var iceGatherer=this.transceivers[sdpMLineIndex].iceGatherer;if(iceGatherer){delete iceGatherer.onlocalcandidate;delete this.transceivers[sdpMLineIndex].iceGatherer;}
-var iceTransport=this.transceivers[sdpMLineIndex].iceTransport;if(iceTransport){delete iceTransport.onicestatechange;delete this.transceivers[sdpMLineIndex].iceTransport;}
-var dtlsTransport=this.transceivers[sdpMLineIndex].dtlsTransport;if(dtlsTransport){delete dtlsTransport.ondtlssttatechange;delete dtlsTransport.onerror;delete this.transceivers[sdpMLineIndex].dtlsTransport;}};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){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;if(!isActionAllowedInSignalingState('setLocalDescription',description.type,this.signalingState)){var e=new Error('Can not set local '+description.type+' in state '+this.signalingState);e.name='InvalidStateError';if(arguments.length>2&&typeof arguments[2]==='function'){window.setTimeout(arguments[2],0,e);}
-return Promise.reject(e);}
-var sections;var sessionpart;if(description.type==='offer'){if(this._pendingOffer){sections=SDPUtils.splitSections(description.sdp);sessionpart=sections.shift();sections.forEach(function(mediaSection,sdpMLineIndex){var caps=SDPUtils.parseRtpParameters(mediaSection);self._pendingOffer[sdpMLineIndex].localCapabilities=caps;});this.transceivers=this._pendingOffer;delete this._pendingOffer;}}else if(description.type==='answer'){sections=SDPUtils.splitSections(self.remoteDescription.sdp);sessionpart=sections.shift();var isIceLite=SDPUtils.matchPrefix(sessionpart,'a=ice-lite').length>0;sections.forEach(function(mediaSection,sdpMLineIndex){var transceiver=self.transceivers[sdpMLineIndex];var iceGatherer=transceiver.iceGatherer;var iceTransport=transceiver.iceTransport;var dtlsTransport=transceiver.dtlsTransport;var localCapabilities=transceiver.localCapabilities;var remoteCapabilities=transceiver.remoteCapabilities;var rejected=SDPUtils.isRejected(mediaSection);if(!rejected&&!transceiver.isDatachannel){var remoteIceParameters=SDPUtils.getIceParameters(mediaSection,sessionpart);var remoteDtlsParameters=SDPUtils.getDtlsParameters(mediaSection,sessionpart);if(isIceLite){remoteDtlsParameters.role='server';}
-if(!self.usingBundle||sdpMLineIndex===0){iceTransport.start(iceGatherer,remoteIceParameters,isIceLite?'controlling':'controlled');dtlsTransport.start(remoteDtlsParameters);}
-var params=getCommonCapabilities(localCapabilities,remoteCapabilities);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+'"');}
-var hasCallback=arguments.length>1&&typeof arguments[1]==='function';if(hasCallback){var cb=arguments[1];window.setTimeout(function(){cb();if(self.iceGatheringState==='new'){self.iceGatheringState='gathering';self._emitGatheringStateChange();}
-self._emitBufferedCandidates();},0);}
-var p=Promise.resolve();p.then(function(){if(!hasCallback){if(self.iceGatheringState==='new'){self.iceGatheringState='gathering';self._emitGatheringStateChange();}
-window.setTimeout(self._emitBufferedCandidates.bind(self),500);}});return p;};RTCPeerConnection.prototype.setRemoteDescription=function(description){var self=this;if(!isActionAllowedInSignalingState('setRemoteDescription',description.type,this.signalingState)){var e=new Error('Can not set remote '+description.type+' in state '+this.signalingState);e.name='InvalidStateError';if(arguments.length>2&&typeof arguments[2]==='function'){window.setTimeout(arguments[2],0,e);}
-return Promise.reject(e);}
-var streams={};var receiverList=[];var sections=SDPUtils.splitSections(description.sdp);var sessionpart=sections.shift();var isIceLite=SDPUtils.matchPrefix(sessionpart,'a=ice-lite').length>0;var usingBundle=SDPUtils.matchPrefix(sessionpart,'a=group:BUNDLE ').length>0;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);var rejected=SDPUtils.isRejected(mediaSection);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();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;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'||cand.component===1;});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=usingBundle&&sdpMLineIndex>0?self.transceivers[0].iceGatherer:self._createIceGatherer(mid,sdpMLineIndex);}
-if(isComplete&&(!usingBundle||sdpMLineIndex===0)){transceiver.iceTransport.setRemoteCandidates(cands);}
-localCapabilities=window.RTCRtpReceiver.getCapabilities(kind);if(edgeVersion<15019){localCapabilities.codecs=localCapabilities.codecs.filter(function(codec){return codec.name!=='rtx';});}
-sendEncodingParameters=[{ssrc:(2*sdpMLineIndex+2)*1001}];if(direction==='sendrecv'||direction==='sendonly'){rtpReceiver=new window.RTCRtpReceiver(transceiver.dtlsTransport,kind);track=rtpReceiver.track;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;}});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]);}}
-transceiver.localCapabilities=localCapabilities;transceiver.remoteCapabilities=remoteCapabilities;transceiver.rtpReceiver=rtpReceiver;transceiver.rtcpParameters=rtcpParameters;transceiver.sendEncodingParameters=sendEncodingParameters;transceiver.recvEncodingParameters=recvEncodingParameters;self._transceive(self.transceivers[sdpMLineIndex],false,direction==='sendrecv'||direction==='sendonly');}else if(description.type==='answer'&&!rejected){transceiver=self.transceivers[sdpMLineIndex];iceGatherer=transceiver.iceGatherer;iceTransport=transceiver.iceTransport;dtlsTransport=transceiver.dtlsTransport;rtpReceiver=transceiver.rtpReceiver;sendEncodingParameters=transceiver.sendEncodingParameters;localCapabilities=transceiver.localCapabilities;self.transceivers[sdpMLineIndex].recvEncodingParameters=recvEncodingParameters;self.transceivers[sdpMLineIndex].remoteCapabilities=remoteCapabilities;self.transceivers[sdpMLineIndex].rtcpParameters=rtcpParameters;if((isIceLite||isComplete)&&cands.length){iceTransport.setRemoteCandidates(cands);}
-if(!usingBundle||sdpMLineIndex===0){iceTransport.start(iceGatherer,remoteIceParameters,'controlling');dtlsTransport.start(remoteDtlsParameters);}
-self._transceive(transceiver,direction==='sendrecv'||direction==='recvonly',direction==='sendrecv'||direction==='sendonly');if(rtpReceiver&&(direction==='sendrecv'||direction==='sendonly')){track=rtpReceiver.track;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{delete transceiver.rtpReceiver;}}});this.remoteDescription={type:description.type,sdp:description.sdp};switch(description.type){case'offer':this._updateSignalingState('have-remote-offer');break;case'answer':this._updateSignalingState('stable');break;default:throw new TypeError('unsupported type "'+description.type+'"');}
-Object.keys(streams).forEach(function(sid){var stream=streams[sid];if(stream.getTracks().length){self.remoteStreams.push(stream);var event=new Event('addstream');event.stream=stream;self.dispatchEvent(event);if(self.onaddstream!==null){window.setTimeout(function(){self.onaddstream(event);},0);}
-receiverList.forEach(function(item){var track=item[0];var receiver=item[1];if(stream.id!==item[2].id){return;}
-var trackEvent=new Event('track');trackEvent.track=track;trackEvent.receiver=receiver;trackEvent.streams=[stream];self.dispatchEvent(trackEvent);if(self.ontrack!==null){window.setTimeout(function(){self.ontrack(trackEvent);},0);}});}});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);if(arguments.length>1&&typeof arguments[1]==='function'){window.setTimeout(arguments[1],0);}
-return Promise.resolve();};RTCPeerConnection.prototype.close=function(){this.transceivers.forEach(function(transceiver){if(transceiver.iceTransport){transceiver.iceTransport.stop();}
-if(transceiver.dtlsTransport){transceiver.dtlsTransport.stop();}
-if(transceiver.rtpSender){transceiver.rtpSender.stop();}
-if(transceiver.rtpReceiver){transceiver.rtpReceiver.stop();}});this._updateSignalingState('closed');};RTCPeerConnection.prototype._updateSignalingState=function(newState){this.signalingState=newState;var event=new Event('signalingstatechange');this.dispatchEvent(event);if(this.onsignalingstatechange!==null){this.onsignalingstatechange(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(self.onnegotiationneeded!==null){self.onnegotiationneeded(event);}},0);};RTCPeerConnection.prototype._updateConnectionState=function(){var self=this;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]++;});states.connected+=states.completed;newState='new';if(states.failed>0){newState='failed';}else if(states.connecting>0||states.checking>0){newState='connecting';}else if(states.disconnected>0){newState='disconnected';}else if(states.new>0){newState='new';}else if(states.connected>0||states.completed>0){newState='connected';}
-if(newState!==self.iceConnectionState){self.iceConnectionState=newState;var event=new Event('iceconnectionstatechange');this.dispatchEvent(event);if(this.oniceconnectionstatechange!==null){this.oniceconnectionstatechange(event);}}};RTCPeerConnection.prototype.createOffer=function(){var self=this;if(this._pendingOffer){throw new Error('createOffer called while there is a pending offer.');}
-var offerOptions;if(arguments.length===1&&typeof arguments[0]!=='function'){offerOptions=arguments[0];}else if(arguments.length===3){offerOptions=arguments[2];}
-var numAudioTracks=this.transceivers.filter(function(t){return t.kind==='audio';}).length;var numVideoTracks=this.transceivers.filter(function(t){return t.kind==='video';}).length;if(offerOptions){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;}}});while(numAudioTracks>0||numVideoTracks>0){if(numAudioTracks>0){this._createTransceiver('audio');numAudioTracks--;}
-if(numVideoTracks>0){this._createTransceiver('video');numVideoTracks--;}}
-var transceivers=sortTracks(this.transceivers);var sdp=SDPUtils.writeSessionBoilerplate(this._sdpSessionId);transceivers.forEach(function(transceiver,sdpMLineIndex){var track=transceiver.track;var kind=transceiver.kind;var mid=SDPUtils.generateIdentifier();transceiver.mid=mid;if(!transceiver.iceGatherer){transceiver.iceGatherer=self.usingBundle&&sdpMLineIndex>0?transceivers[0].iceGatherer:self._createIceGatherer(mid,sdpMLineIndex);}
-var localCapabilities=window.RTCRtpSender.getCapabilities(kind);if(edgeVersion<15019){localCapabilities.codecs=localCapabilities.codecs.filter(function(codec){return codec.name!=='rtx';});}
-localCapabilities.codecs.forEach(function(codec){if(codec.name==='H264'&&codec.parameters['level-asymmetry-allowed']===undefined){codec.parameters['level-asymmetry-allowed']='1';}});var sendEncodingParameters=[{ssrc:(2*sdpMLineIndex+1)*1001}];if(track){if(edgeVersion>=15019&&kind==='video'){sendEncodingParameters[0].rtx={ssrc:(2*sdpMLineIndex+1)*1001+1};}}
-if(transceiver.wantReceive){transceiver.rtpReceiver=new window.RTCRtpReceiver(transceiver.dtlsTransport,kind);}
-transceiver.localCapabilities=localCapabilities;transceiver.sendEncodingParameters=sendEncodingParameters;});if(this._config.bundlePolicy!=='max-compat'){sdp+='a=group:BUNDLE '+transceivers.map(function(t){return t.mid;}).join(' ')+'\r\n';}
-sdp+='a=ice-options:trickle\r\n';transceivers.forEach(function(transceiver,sdpMLineIndex){sdp+=SDPUtils.writeMediaSection(transceiver,transceiver.localCapabilities,'offer',transceiver.stream);sdp+='a=rtcp-rsize\r\n';});this._pendingOffer=transceivers;var desc=new window.RTCSessionDescription({type:'offer',sdp:sdp});if(arguments.length&&typeof arguments[0]==='function'){window.setTimeout(arguments[0],0,desc);}
-return Promise.resolve(desc);};RTCPeerConnection.prototype.createAnswer=function(){var sdp=SDPUtils.writeSessionBoilerplate(this._sdpSessionId);if(this.usingBundle){sdp+='a=group:BUNDLE '+this.transceivers.map(function(t){return t.mid;}).join(' ')+'\r\n';}
-this.transceivers.forEach(function(transceiver,sdpMLineIndex){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;}
-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){if(edgeVersion>=15019&&transceiver.kind==='video'){transceiver.sendEncodingParameters[0].rtx={ssrc:(2*sdpMLineIndex+2)*1001+1};}}}
-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+=SDPUtils.writeMediaSection(transceiver,commonCapabilities,'answer',transceiver.stream);if(transceiver.rtcpParameters&&transceiver.rtcpParameters.reducedSize){sdp+='a=rtcp-rsize\r\n';}});var desc=new window.RTCSessionDescription({type:'answer',sdp:sdp});if(arguments.length&&typeof arguments[0]==='function'){window.setTimeout(arguments[0],0,desc);}
-return Promise.resolve(desc);};RTCPeerConnection.prototype.addIceCandidate=function(candidate){if(!candidate){for(var j=0;j<this.transceivers.length;j++){this.transceivers[j].iceTransport.addRemoteCandidate({});if(this.usingBundle){return Promise.resolve();}}}else{var mLineIndex=candidate.sdpMLineIndex;if(candidate.sdpMid){for(var i=0;i<this.transceivers.length;i++){if(this.transceivers[i].mid===candidate.sdpMid){mLineIndex=i;break;}}}
-var transceiver=this.transceivers[mLineIndex];if(transceiver){var cand=Object.keys(candidate.candidate).length>0?SDPUtils.parseCandidate(candidate.candidate):{};if(cand.protocol==='tcp'&&(cand.port===0||cand.port===9)){return Promise.resolve();}
-if(cand.component&&!(cand.component==='1'||cand.component===1)){return Promise.resolve();}
-transceiver.iceTransport.addRemoteCandidate(cand);var sections=SDPUtils.splitSections(this.remoteDescription.sdp);sections[mLineIndex+1]+=(cand.type?candidate.candidate.trim():'a=end-of-candidates')+'\r\n';this.remoteDescription.sdp=sections.join('');}}
-if(arguments.length>1&&typeof arguments[1]==='function'){window.setTimeout(arguments[1],0);}
-return Promise.resolve();};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){var results=new Map();Promise.all(promises).then(function(res){res.forEach(function(result){Object.keys(result).forEach(function(id){result[id].type=fixStatsType(result[id]);results.set(id,result[id]);});});if(cb){window.setTimeout(cb,0,results);}
-resolve(results);});});};return RTCPeerConnection;};},{"sdp":1}],9:[function(require,module,exports){'use strict';var utils=require('../utils');var firefoxShim={shimOnTrack:function(window){if(typeof window==='object'&&window.RTCPeerConnection&&!('ontrack'in
+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){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){'use strict';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;}};};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){'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.streams=[e.stream];this.dispatchEvent(event);}.bind(this));}.bind(this));}});}},shimSourceObject:function(window){if(typeof window==='object'){if(window.HTMLMediaElement&&!('srcObject'in window.HTMLMediaElement.prototype)){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;}
+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){if(typeof window==='object'){if(window.HTMLMediaElement&&!('srcObject'in window.HTMLMediaElement.prototype)){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;}
if(!window.RTCPeerConnection){window.RTCPeerConnection=function(pcConfig,pcConstraints){if(browserDetails.version<38){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 nativeAddIceCandidate.apply(this,arguments);};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){try{stats.forEach(function(stat){stat.type=modernStatsTypes[stat.type]||stat.type;});}catch(e){if(e.name!=='TypeError'){throw e;}
stats.forEach(function(stat,i){stats.set(i,Object.assign({},stat,{type:modernStatsTypes[stat.type]||stat.type}));});}}
-return stats;}).then(onSucc,onErr);};}};module.exports={shimOnTrack:firefoxShim.shimOnTrack,shimSourceObject:firefoxShim.shimSourceObject,shimPeerConnection:firefoxShim.shimPeerConnection,shimGetUserMedia:require('./getusermedia')};},{"../utils":12,"./getusermedia":10}],10:[function(require,module,exports){'use strict';var utils=require('../utils');var logging=utils.log;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;}};};var getUserMedia_=function(constraints,onSuccess,onError){var constraintsToFF37_=function(c){if(typeof c!=='object'||c.require){return c;}
+return stats;}).then(onSucc,onErr);};},shimRemoveStream:function(window){if(!window.RTCPeerConnection||'removeStream'in window.RTCPeerConnection.prototype){return;}
+window.RTCPeerConnection.prototype.removeStream=function(stream){var pc=this;utils.deprecated('removeStream','removeTrack');this.getSenders().forEach(function(sender){if(sender.track&&stream.getTracks().indexOf(sender.track)!==-1){pc.removeTrack(sender);}});};}};module.exports={shimOnTrack:firefoxShim.shimOnTrack,shimSourceObject:firefoxShim.shimSourceObject,shimPeerConnection:firefoxShim.shimPeerConnection,shimRemoveStream:firefoxShim.shimRemoveStream,shimGetUserMedia:require('./getusermedia')};},{"../utils":13,"./getusermedia":11}],11:[function(require,module,exports){'use strict';var utils=require('../utils');var logging=utils.log;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;}};};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;}
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);}
-console.warn('navigator.getUserMedia has been replaced by '+'navigator.mediaDevices.getUserMedia');navigator.mediaDevices.getUserMedia(constraints).then(onSuccess,onError);};};},{"../utils":12}],11:[function(require,module,exports){'use strict';var utils=require('../utils');var safariShim={shimLocalStreamsAPI:function(window){if(typeof window!=='object'||!window.RTCPeerConnection){return;}
+utils.deprecated('navigator.getUserMedia','navigator.mediaDevices.getUserMedia');navigator.mediaDevices.getUserMedia(constraints).then(onSuccess,onError);};};},{"../utils":13}],12:[function(require,module,exports){'use strict';var utils=require('../utils');var safariShim={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(!('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);};}
+return _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;}
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){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;Object.defineProperty(window.RTCPeerConnection,'generateCertificate',{get:function(){return OrigPeerConnection.generateCertificate;}});}};module.exports={shimCallbacksAPI:safariShim.shimCallbacksAPI,shimLocalStreamsAPI:safariShim.shimLocalStreamsAPI,shimRemoteStreamsAPI:safariShim.shimRemoteStreamsAPI,shimGetUserMedia:safariShim.shimGetUserMedia,shimRTCIceServerUrls:safariShim.shimRTCIceServerUrls};},{"../utils":12}],12:[function(require,module,exports){'use strict';var logDisabled_=true;var deprecationWarnings_=true;var utils={disableLog:function(bool){if(typeof bool!=='boolean'){return new Error('Argument type: '+typeof bool+'. Please use a boolean.');}
+return new OrigPeerConnection(pcConfig,pcConstraints);};window.RTCPeerConnection.prototype=OrigPeerConnection.prototype;if('generateCertificate'in window.RTCPeerConnection){Object.defineProperty(window.RTCPeerConnection,'generateCertificate',{get:function(){return OrigPeerConnection.generateCertificate;}});}},shimTrackEventTransceiver:function(window){if(typeof window==='object'&&window.RTCPeerConnection&&('receiver'in window.RTCTrackEvent.prototype)&&!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);};}};module.exports={shimCallbacksAPI:safariShim.shimCallbacksAPI,shimLocalStreamsAPI:safariShim.shimLocalStreamsAPI,shimRemoteStreamsAPI:safariShim.shimRemoteStreamsAPI,shimGetUserMedia:safariShim.shimGetUserMedia,shimRTCIceServerUrls:safariShim.shimRTCIceServerUrls,shimTrackEventTransceiver:safariShim.shimTrackEventTransceiver,shimCreateOfferLegacy:safariShim.shimCreateOfferLegacy};},{"../utils":13}],13:[function(require,module,exports){'use strict';var logDisabled_=true;var deprecationWarnings_=true;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';},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);}}},deprecated:function(oldMethod,newMethod){if(!deprecationWarnings_){return;}
console.warn(oldMethod+' is deprecated, please use '+newMethod+' instead.');},extractVersion:function(uastring,expr,pos){var match=uastring.match(expr);return match&&match.length>=pos&&parseInt(match[pos],10);},detectBrowser:function(window){var navigator=window&&window.navigator;var result={};result.browser=null;result.version=null;if(typeof window==='undefined'||!window.navigator){result.browser='Not a browser.';return result;}
if(navigator.mozGetUserMedia){result.browser='firefox';result.version=this.extractVersion(navigator.userAgent,/Firefox\/(\d+)\./,1);}else if(navigator.webkitGetUserMedia){if(window.webkitRTCPeerConnection){result.browser='chrome';result.version=this.extractVersion(navigator.userAgent,/Chrom(e|ium)\/(\d+)\./,2);}else{if(navigator.userAgent.match(/Version\/(\d+).(\d+)/)){result.browser='safari';result.version=this.extractVersion(navigator.userAgent,/AppleWebKit\/(\d+)\./,1);}else{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+)$/)){result.browser='edge';result.version=this.extractVersion(navigator.userAgent,/Edge\/(\d+).(\d+)$/,2);}else if(navigator.mediaDevices&&navigator.userAgent.match(/AppleWebKit\/(\d+)\./)){result.browser='safari';result.version=this.extractVersion(navigator.userAgent,/AppleWebKit\/(\d+)\./,1);}else{result.browser='Not a supported browser.';return result;}
-return result;},shimCreateObjectURL:function(window){var URL=window&&window.URL;if(!(typeof window==='object'&&window.HTMLMediaElement&&'srcObject'in window.HTMLMediaElement.prototype)){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);};}};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)};},{}]},{},[2])(2)});
\ No newline at end of file
+return result;},};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)});
\ No newline at end of file
projects / thirdparty / freeswitch.git / commitdiff
