diff --git a/html5/verto/js/src/vendor/adapter-latest.js b/html5/verto/js/src/vendor/adapter-latest.js
index 46242f30c6..8d59b777bb 100644
--- a/html5/verto/js/src/vendor/adapter-latest.js
+++ b/html5/verto/js/src/vendor/adapter-latest.js
@@ -25,9 +25,7 @@ function writeMediaSection(transceiver, caps, type, stream, dtlsRole) {
sdp += 'a=mid:' + transceiver.mid + '\r\n';
- if (transceiver.direction) {
- sdp += 'a=' + transceiver.direction + '\r\n';
- } else if (transceiver.rtpSender && transceiver.rtpReceiver) {
+ if (transceiver.rtpSender && transceiver.rtpReceiver) {
sdp += 'a=sendrecv\r\n';
} else if (transceiver.rtpSender) {
sdp += 'a=sendonly\r\n';
@@ -101,7 +99,6 @@ function filterIceServers(iceServers, edgeVersion) {
server.urls = isString ? urls[0] : urls;
return !!urls.length;
}
- return false;
});
}
@@ -215,25 +212,51 @@ function maybeAddCandidate(iceTransport, candidate) {
return !alreadyAdded;
}
+
+// https://w3c.github.io/mediacapture-main/#mediastream
+// Helper function to add the track to the stream and
+// dispatch the event ourselves.
+function addTrackToStreamAndFireEvent(track, stream) {
+ stream.addTrack(track);
+ var e = new Event('addtrack'); // TODO: MediaStreamTrackEvent
+ e.track = track;
+ stream.dispatchEvent(e);
+}
+
+function removeTrackFromStreamAndFireEvent(track, stream) {
+ stream.removeTrack(track);
+ var e = new Event('removetrack'); // TODO: MediaStreamTrackEvent
+ e.track = track;
+ stream.dispatchEvent(e);
+}
+
+function fireAddTrack(pc, track, receiver, streams) {
+ var trackEvent = new Event('track');
+ trackEvent.track = track;
+ trackEvent.receiver = receiver;
+ trackEvent.transceiver = {receiver: receiver};
+ trackEvent.streams = streams;
+ window.setTimeout(function() {
+ pc._dispatchEvent('track', trackEvent);
+ });
+}
+
+function makeError(name, description) {
+ var e = new Error(description);
+ e.name = name;
+ return e;
+}
+
module.exports = function(window, edgeVersion) {
var RTCPeerConnection = function(config) {
- var self = this;
+ var pc = this;
var _eventTarget = document.createDocumentFragment();
['addEventListener', 'removeEventListener', 'dispatchEvent']
.forEach(function(method) {
- self[method] = _eventTarget[method].bind(_eventTarget);
+ pc[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;
@@ -252,9 +275,8 @@ module.exports = function(window, edgeVersion) {
this.usingBundle = config.bundlePolicy === 'max-bundle';
if (config.rtcpMuxPolicy === 'negotiate') {
- var e = new Error('rtcpMuxPolicy \'negotiate\' is not supported');
- e.name = 'NotSupportedError';
- throw(e);
+ throw(makeError('NotSupportedError',
+ 'rtcpMuxPolicy \'negotiate\' is not supported'));
} else if (!config.rtcpMuxPolicy) {
config.rtcpMuxPolicy = 'require';
}
@@ -302,14 +324,34 @@ module.exports = function(window, edgeVersion) {
this._sdpSessionVersion = 0;
this._dtlsRole = undefined; // role for a=setup to use in answers.
+
+ this._isClosed = false;
+ };
+
+ // set up event handlers on prototype
+ RTCPeerConnection.prototype.onicecandidate = null;
+ RTCPeerConnection.prototype.onaddstream = null;
+ RTCPeerConnection.prototype.ontrack = null;
+ RTCPeerConnection.prototype.onremovestream = null;
+ RTCPeerConnection.prototype.onsignalingstatechange = null;
+ RTCPeerConnection.prototype.oniceconnectionstatechange = null;
+ RTCPeerConnection.prototype.onicegatheringstatechange = null;
+ RTCPeerConnection.prototype.onnegotiationneeded = null;
+ RTCPeerConnection.prototype.ondatachannel = null;
+
+ RTCPeerConnection.prototype._dispatchEvent = function(name, event) {
+ if (this._isClosed) {
+ return;
+ }
+ this.dispatchEvent(event);
+ if (typeof this['on' + name] === 'function') {
+ this['on' + name](event);
+ }
};
RTCPeerConnection.prototype._emitGatheringStateChange = function() {
var event = new Event('icegatheringstatechange');
- this.dispatchEvent(event);
- if (typeof this.onicegatheringstatechange === 'function') {
- this.onicegatheringstatechange(event);
- }
+ this._dispatchEvent('icegatheringstatechange', event);
};
RTCPeerConnection.prototype.getConfiguration = function() {
@@ -342,6 +384,7 @@ module.exports = function(window, edgeVersion) {
sendEncodingParameters: null,
recvEncodingParameters: null,
stream: null,
+ associatedRemoteMediaStreams: [],
wantReceive: true
};
if (this.usingBundle && hasBundleTransport) {
@@ -357,6 +400,19 @@ module.exports = function(window, edgeVersion) {
};
RTCPeerConnection.prototype.addTrack = function(track, stream) {
+ var alreadyExists = this.transceivers.find(function(s) {
+ return s.track === track;
+ });
+
+ if (alreadyExists) {
+ throw makeError('InvalidAccessError', 'Track already exists.');
+ }
+
+ if (this.signalingState === 'closed') {
+ throw makeError('InvalidStateError',
+ 'Attempted to call addTrack on a closed peerconnection.');
+ }
+
var transceiver;
for (var i = 0; i < this.transceivers.length; i++) {
if (!this.transceivers[i].track &&
@@ -382,10 +438,10 @@ module.exports = function(window, edgeVersion) {
};
RTCPeerConnection.prototype.addStream = function(stream) {
- var self = this;
+ var pc = this;
if (edgeVersion >= 15025) {
stream.getTracks().forEach(function(track) {
- self.addTrack(track, stream);
+ pc.addTrack(track, stream);
});
} else {
// Clone is necessary for local demos mostly, attaching directly
@@ -399,17 +455,54 @@ module.exports = function(window, edgeVersion) {
});
});
clonedStream.getTracks().forEach(function(track) {
- self.addTrack(track, clonedStream);
+ pc.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.removeTrack = function(sender) {
+ if (!(sender instanceof window.RTCRtpSender)) {
+ throw new TypeError('Argument 1 of RTCPeerConnection.removeTrack ' +
+ 'does not implement interface RTCRtpSender.');
}
+
+ var transceiver = this.transceivers.find(function(t) {
+ return t.rtpSender === sender;
+ });
+
+ if (!transceiver) {
+ throw makeError('InvalidAccessError',
+ 'Sender was not created by this connection.');
+ }
+ var stream = transceiver.stream;
+
+ transceiver.rtpSender.stop();
+ transceiver.rtpSender = null;
+ transceiver.track = null;
+ transceiver.stream = null;
+
+ // remove the stream from the set of local streams
+ var localStreams = this.transceivers.map(function(t) {
+ return t.stream;
+ });
+ if (localStreams.indexOf(stream) === -1 &&
+ this.localStreams.indexOf(stream) > -1) {
+ this.localStreams.splice(this.localStreams.indexOf(stream), 1);
+ }
+
+ this._maybeFireNegotiationNeeded();
+ };
+
+ RTCPeerConnection.prototype.removeStream = function(stream) {
+ var pc = this;
+ stream.getTracks().forEach(function(track) {
+ var sender = pc.getSenders().find(function(s) {
+ return s.track === track;
+ });
+ if (sender) {
+ pc.removeTrack(sender);
+ }
+ });
};
RTCPeerConnection.prototype.getSenders = function() {
@@ -433,7 +526,7 @@ module.exports = function(window, edgeVersion) {
RTCPeerConnection.prototype._createIceGatherer = function(sdpMLineIndex,
usingBundle) {
- var self = this;
+ var pc = this;
if (usingBundle && sdpMLineIndex > 0) {
return this.transceivers[0].iceGatherer;
} else if (this._iceGatherers.length) {
@@ -453,8 +546,8 @@ module.exports = function(window, edgeVersion) {
// 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);
+ if (pc.transceivers[sdpMLineIndex].candidates !== null) {
+ pc.transceivers[sdpMLineIndex].candidates.push(event.candidate);
}
};
iceGatherer.addEventListener('localcandidate',
@@ -464,7 +557,7 @@ module.exports = function(window, edgeVersion) {
// start gathering from an RTCIceGatherer.
RTCPeerConnection.prototype._gather = function(mid, sdpMLineIndex) {
- var self = this;
+ var pc = this;
var iceGatherer = this.transceivers[sdpMLineIndex].iceGatherer;
if (iceGatherer.onlocalcandidate) {
return;
@@ -474,7 +567,7 @@ module.exports = function(window, edgeVersion) {
iceGatherer.removeEventListener('localcandidate',
this.transceivers[sdpMLineIndex].bufferCandidates);
iceGatherer.onlocalcandidate = function(evt) {
- if (self.usingBundle && sdpMLineIndex > 0) {
+ if (pc.usingBundle && sdpMLineIndex > 0) {
// if we know that we use bundle we can drop candidates with
// Ñ•dpMLineIndex > 0. If we don't do this then our state gets
// confused since we dispose the extra ice gatherer.
@@ -502,7 +595,7 @@ module.exports = function(window, edgeVersion) {
}
// update local description.
- var sections = SDPUtils.splitSections(self.localDescription.sdp);
+ var sections = SDPUtils.splitSections(pc.localDescription.sdp);
if (!end) {
sections[event.candidate.sdpMLineIndex + 1] +=
'a=' + event.candidate.candidate + '\r\n';
@@ -510,32 +603,26 @@ module.exports = function(window, edgeVersion) {
sections[event.candidate.sdpMLineIndex + 1] +=
'a=end-of-candidates\r\n';
}
- self.localDescription.sdp = sections.join('');
- var complete = self.transceivers.every(function(transceiver) {
+ pc.localDescription.sdp = sections.join('');
+ var complete = pc.transceivers.every(function(transceiver) {
return transceiver.iceGatherer &&
transceiver.iceGatherer.state === 'completed';
});
- if (self.iceGatheringState !== 'gathering') {
- self.iceGatheringState = 'gathering';
- self._emitGatheringStateChange();
+ if (pc.iceGatheringState !== 'gathering') {
+ pc.iceGatheringState = 'gathering';
+ pc._emitGatheringStateChange();
}
// Emit candidate. Also emit null candidate when all gatherers are
// complete.
if (!end) {
- self.dispatchEvent(event);
- if (typeof self.onicecandidate === 'function') {
- self.onicecandidate(event);
- }
+ pc._dispatchEvent('icecandidate', event);
}
if (complete) {
- self.dispatchEvent(new Event('icecandidate'));
- if (typeof self.onicecandidate === 'function') {
- self.onicecandidate(new Event('icecandidate'));
- }
- self.iceGatheringState = 'complete';
- self._emitGatheringStateChange();
+ pc._dispatchEvent('icecandidate', new Event('icecandidate'));
+ pc.iceGatheringState = 'complete';
+ pc._emitGatheringStateChange();
}
};
@@ -551,21 +638,21 @@ module.exports = function(window, edgeVersion) {
// Create ICE transport and DTLS transport.
RTCPeerConnection.prototype._createIceAndDtlsTransports = function() {
- var self = this;
+ var pc = this;
var iceTransport = new window.RTCIceTransport(null);
iceTransport.onicestatechange = function() {
- self._updateConnectionState();
+ pc._updateConnectionState();
};
var dtlsTransport = new window.RTCDtlsTransport(iceTransport);
dtlsTransport.ondtlsstatechange = function() {
- self._updateConnectionState();
+ pc._updateConnectionState();
};
dtlsTransport.onerror = function() {
- // onerror does not set state to failed by itself.
+ // onerror does not set state to failed by itpc.
Object.defineProperty(dtlsTransport, 'state',
{value: 'failed', writable: true});
- self._updateConnectionState();
+ pc._updateConnectionState();
};
return {
@@ -621,11 +708,15 @@ module.exports = function(window, edgeVersion) {
delete p.rtx;
});
}
- params.encodings = transceiver.recvEncodingParameters;
+ if (transceiver.recvEncodingParameters.length) {
+ params.encodings = transceiver.recvEncodingParameters;
+ }
params.rtcp = {
- cname: transceiver.rtcpParameters.cname,
compound: transceiver.rtcpParameters.compound
};
+ if (transceiver.rtcpParameters.cname) {
+ params.rtcp.cname = transceiver.rtcpParameters.cname;
+ }
if (transceiver.sendEncodingParameters.length) {
params.rtcp.ssrc = transceiver.sendEncodingParameters[0].ssrc;
}
@@ -634,20 +725,13 @@ module.exports = function(window, edgeVersion) {
};
RTCPeerConnection.prototype.setLocalDescription = function(description) {
- var self = this;
- var args = arguments;
+ var pc = this;
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);
- });
+ description.type, this.signalingState) || this._isClosed) {
+ return Promise.reject(makeError('InvalidStateError',
+ 'Can not set local ' + description.type +
+ ' in state ' + pc.signalingState));
}
var sections;
@@ -659,19 +743,19 @@ module.exports = function(window, edgeVersion) {
sessionpart = sections.shift();
sections.forEach(function(mediaSection, sdpMLineIndex) {
var caps = SDPUtils.parseRtpParameters(mediaSection);
- self.transceivers[sdpMLineIndex].localCapabilities = caps;
+ pc.transceivers[sdpMLineIndex].localCapabilities = caps;
});
this.transceivers.forEach(function(transceiver, sdpMLineIndex) {
- self._gather(transceiver.mid, sdpMLineIndex);
+ pc._gather(transceiver.mid, sdpMLineIndex);
});
} else if (description.type === 'answer') {
- sections = SDPUtils.splitSections(self.remoteDescription.sdp);
+ sections = SDPUtils.splitSections(pc.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 transceiver = pc.transceivers[sdpMLineIndex];
var iceGatherer = transceiver.iceGatherer;
var iceTransport = transceiver.iceTransport;
var dtlsTransport = transceiver.dtlsTransport;
@@ -680,7 +764,7 @@ module.exports = function(window, edgeVersion) {
// treat bundle-only as not-rejected.
var rejected = SDPUtils.isRejected(mediaSection) &&
- !SDPUtils.matchPrefix(mediaSection, 'a=bundle-only').length === 1;
+ SDPUtils.matchPrefix(mediaSection, 'a=bundle-only').length === 0;
if (!rejected && !transceiver.isDatachannel) {
var remoteIceParameters = SDPUtils.getIceParameters(
@@ -691,8 +775,8 @@ module.exports = function(window, edgeVersion) {
remoteDtlsParameters.role = 'server';
}
- if (!self.usingBundle || sdpMLineIndex === 0) {
- self._gather(transceiver.mid, sdpMLineIndex);
+ if (!pc.usingBundle || sdpMLineIndex === 0) {
+ pc._gather(transceiver.mid, sdpMLineIndex);
if (iceTransport.state === 'new') {
iceTransport.start(iceGatherer, remoteIceParameters,
isIceLite ? 'controlling' : 'controlled');
@@ -708,7 +792,7 @@ module.exports = function(window, edgeVersion) {
// Start the RTCRtpSender. The RTCRtpReceiver for this
// transceiver has already been started in setRemoteDescription.
- self._transceive(transceiver,
+ pc._transceive(transceiver,
params.codecs.length > 0,
false);
}
@@ -731,34 +815,17 @@ module.exports = function(window, edgeVersion) {
'"');
}
- // 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();
- });
+ return Promise.resolve();
};
RTCPeerConnection.prototype.setRemoteDescription = function(description) {
- var self = this;
- var args = arguments;
+ var pc = this;
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);
- });
+ description.type, this.signalingState) || this._isClosed) {
+ return Promise.reject(makeError('InvalidStateError',
+ 'Can not set remote ' + description.type +
+ ' in state ' + pc.signalingState));
}
var streams = {};
@@ -787,7 +854,7 @@ module.exports = function(window, edgeVersion) {
var kind = SDPUtils.getKind(mediaSection);
// treat bundle-only as not-rejected.
var rejected = SDPUtils.isRejected(mediaSection) &&
- !SDPUtils.matchPrefix(mediaSection, 'a=bundle-only').length === 1;
+ SDPUtils.matchPrefix(mediaSection, 'a=bundle-only').length === 0;
var protocol = lines[0].substr(2).split(' ')[2];
var direction = SDPUtils.getDirection(mediaSection, sessionpart);
@@ -797,7 +864,7 @@ module.exports = function(window, edgeVersion) {
// Reject datachannels which are not implemented yet.
if (kind === 'application' && protocol === 'DTLS/SCTP') {
- self.transceivers[sdpMLineIndex] = {
+ pc.transceivers[sdpMLineIndex] = {
mid: mid,
isDatachannel: true
};
@@ -843,30 +910,30 @@ module.exports = function(window, edgeVersion) {
// 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);
+ pc.transceivers[sdpMLineIndex]) {
+ pc._disposeIceAndDtlsTransports(sdpMLineIndex);
+ pc.transceivers[sdpMLineIndex].iceGatherer =
+ pc.transceivers[0].iceGatherer;
+ pc.transceivers[sdpMLineIndex].iceTransport =
+ pc.transceivers[0].iceTransport;
+ pc.transceivers[sdpMLineIndex].dtlsTransport =
+ pc.transceivers[0].dtlsTransport;
+ if (pc.transceivers[sdpMLineIndex].rtpSender) {
+ pc.transceivers[sdpMLineIndex].rtpSender.setTransport(
+ pc.transceivers[0].dtlsTransport);
}
- if (self.transceivers[sdpMLineIndex].rtpReceiver) {
- self.transceivers[sdpMLineIndex].rtpReceiver.setTransport(
- self.transceivers[0].dtlsTransport);
+ if (pc.transceivers[sdpMLineIndex].rtpReceiver) {
+ pc.transceivers[sdpMLineIndex].rtpReceiver.setTransport(
+ pc.transceivers[0].dtlsTransport);
}
}
if (description.type === 'offer' && !rejected) {
- transceiver = self.transceivers[sdpMLineIndex] ||
- self._createTransceiver(kind);
+ transceiver = pc.transceivers[sdpMLineIndex] ||
+ pc._createTransceiver(kind);
transceiver.mid = mid;
if (!transceiver.iceGatherer) {
- transceiver.iceGatherer = self._createIceGatherer(sdpMLineIndex,
+ transceiver.iceGatherer = pc._createIceGatherer(sdpMLineIndex,
usingBundle);
}
@@ -895,6 +962,7 @@ module.exports = function(window, edgeVersion) {
ssrc: (2 * sdpMLineIndex + 2) * 1001
}];
+ // TODO: rewrite to use http://w3c.github.io/webrtc-pc/#set-associated-remote-streams
var isNewTrack = false;
if (direction === 'sendrecv' || direction === 'sendonly') {
isNewTrack = !transceiver.rtpReceiver;
@@ -905,7 +973,9 @@ module.exports = function(window, edgeVersion) {
var stream;
track = rtpReceiver.track;
// FIXME: does not work with Plan B.
- if (remoteMsid) {
+ if (remoteMsid && remoteMsid.stream === '-') {
+ // no-op. a stream id of '-' means: no associated stream.
+ } else if (remoteMsid) {
if (!streams[remoteMsid.stream]) {
streams[remoteMsid.stream] = new window.MediaStream();
Object.defineProperty(streams[remoteMsid.stream], 'id', {
@@ -926,9 +996,22 @@ module.exports = function(window, edgeVersion) {
}
stream = streams.default;
}
- stream.addTrack(track);
+ if (stream) {
+ addTrackToStreamAndFireEvent(track, stream);
+ transceiver.associatedRemoteMediaStreams.push(stream);
+ }
receiverList.push([track, rtpReceiver, stream]);
}
+ } else if (transceiver.rtpReceiver && transceiver.rtpReceiver.track) {
+ transceiver.associatedRemoteMediaStreams.forEach(function(s) {
+ var nativeTrack = s.getTracks().find(function(t) {
+ return t.id === transceiver.rtpReceiver.track.id;
+ });
+ if (nativeTrack) {
+ removeTrackFromStreamAndFireEvent(nativeTrack, s);
+ }
+ });
+ transceiver.associatedRemoteMediaStreams = [];
}
transceiver.localCapabilities = localCapabilities;
@@ -940,11 +1023,11 @@ module.exports = function(window, edgeVersion) {
// Start the RTCRtpReceiver now. The RTPSender is started in
// setLocalDescription.
- self._transceive(self.transceivers[sdpMLineIndex],
+ pc._transceive(pc.transceivers[sdpMLineIndex],
false,
isNewTrack);
} else if (description.type === 'answer' && !rejected) {
- transceiver = self.transceivers[sdpMLineIndex];
+ transceiver = pc.transceivers[sdpMLineIndex];
iceGatherer = transceiver.iceGatherer;
iceTransport = transceiver.iceTransport;
dtlsTransport = transceiver.dtlsTransport;
@@ -952,11 +1035,11 @@ module.exports = function(window, edgeVersion) {
sendEncodingParameters = transceiver.sendEncodingParameters;
localCapabilities = transceiver.localCapabilities;
- self.transceivers[sdpMLineIndex].recvEncodingParameters =
+ pc.transceivers[sdpMLineIndex].recvEncodingParameters =
recvEncodingParameters;
- self.transceivers[sdpMLineIndex].remoteCapabilities =
+ pc.transceivers[sdpMLineIndex].remoteCapabilities =
remoteCapabilities;
- self.transceivers[sdpMLineIndex].rtcpParameters = rtcpParameters;
+ pc.transceivers[sdpMLineIndex].rtcpParameters = rtcpParameters;
if (cands.length && iceTransport.state === 'new') {
if ((isIceLite || isComplete) &&
@@ -979,10 +1062,11 @@ module.exports = function(window, edgeVersion) {
}
}
- self._transceive(transceiver,
+ pc._transceive(transceiver,
direction === 'sendrecv' || direction === 'recvonly',
direction === 'sendrecv' || direction === 'sendonly');
+ // TODO: rewrite to use http://w3c.github.io/webrtc-pc/#set-associated-remote-streams
if (rtpReceiver &&
(direction === 'sendrecv' || direction === 'sendonly')) {
track = rtpReceiver.track;
@@ -990,13 +1074,13 @@ module.exports = function(window, edgeVersion) {
if (!streams[remoteMsid.stream]) {
streams[remoteMsid.stream] = new window.MediaStream();
}
- streams[remoteMsid.stream].addTrack(track);
+ addTrackToStreamAndFireEvent(track, streams[remoteMsid.stream]);
receiverList.push([track, rtpReceiver, streams[remoteMsid.stream]]);
} else {
if (!streams.default) {
streams.default = new window.MediaStream();
}
- streams.default.addTrack(track);
+ addTrackToStreamAndFireEvent(track, streams.default);
receiverList.push([track, rtpReceiver, streams.default]);
}
} else {
@@ -1028,15 +1112,12 @@ module.exports = function(window, edgeVersion) {
Object.keys(streams).forEach(function(sid) {
var stream = streams[sid];
if (stream.getTracks().length) {
- if (self.remoteStreams.indexOf(stream) === -1) {
- self.remoteStreams.push(stream);
+ if (pc.remoteStreams.indexOf(stream) === -1) {
+ pc.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);
- }
+ pc._dispatchEvent('addstream', event);
});
}
@@ -1046,28 +1127,24 @@ module.exports = function(window, edgeVersion) {
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);
- }
- });
+ fireAddTrack(pc, track, receiver, [stream]);
});
}
});
+ receiverList.forEach(function(item) {
+ if (item[2]) {
+ return;
+ }
+ fireAddTrack(pc, item[0], item[1], []);
+ });
// check whether addIceCandidate({}) was called within four seconds after
// setRemoteDescription.
window.setTimeout(function() {
- if (!(self && self.transceivers)) {
+ if (!(pc && pc.transceivers)) {
return;
}
- self.transceivers.forEach(function(transceiver) {
+ pc.transceivers.forEach(function(transceiver) {
if (transceiver.iceTransport &&
transceiver.iceTransport.state === 'new' &&
transceiver.iceTransport.getRemoteCandidates().length > 0) {
@@ -1078,12 +1155,7 @@ module.exports = function(window, edgeVersion) {
});
}, 4000);
- return new Promise(function(resolve) {
- if (args.length > 1 && typeof args[1] === 'function') {
- args[1].apply(null);
- }
- resolve();
- });
+ return Promise.resolve();
};
RTCPeerConnection.prototype.close = function() {
@@ -1107,6 +1179,7 @@ module.exports = function(window, edgeVersion) {
}
});
// FIXME: clean up tracks, local streams, remote streams, etc
+ this._isClosed = true;
this._updateSignalingState('closed');
};
@@ -1114,29 +1187,23 @@ module.exports = function(window, edgeVersion) {
RTCPeerConnection.prototype._updateSignalingState = function(newState) {
this.signalingState = newState;
var event = new Event('signalingstatechange');
- this.dispatchEvent(event);
- if (typeof this.onsignalingstatechange === 'function') {
- this.onsignalingstatechange(event);
- }
+ this._dispatchEvent('signalingstatechange', event);
};
// Determine whether to fire the negotiationneeded event.
RTCPeerConnection.prototype._maybeFireNegotiationNeeded = function() {
- var self = this;
+ var pc = this;
if (this.signalingState !== 'stable' || this.needNegotiation === true) {
return;
}
this.needNegotiation = true;
window.setTimeout(function() {
- if (self.needNegotiation === false) {
+ if (pc.needNegotiation === false) {
return;
}
- self.needNegotiation = false;
+ pc.needNegotiation = false;
var event = new Event('negotiationneeded');
- self.dispatchEvent(event);
- if (typeof self.onnegotiationneeded === 'function') {
- self.onnegotiationneeded(event);
- }
+ pc._dispatchEvent('negotiationneeded', event);
}, 0);
};
@@ -1176,22 +1243,16 @@ module.exports = function(window, edgeVersion) {
if (newState !== this.iceConnectionState) {
this.iceConnectionState = newState;
var event = new Event('iceconnectionstatechange');
- this.dispatchEvent(event);
- if (typeof this.oniceconnectionstatechange === 'function') {
- this.oniceconnectionstatechange(event);
- }
+ this._dispatchEvent('iceconnectionstatechange', event);
}
};
RTCPeerConnection.prototype.createOffer = function() {
- var self = this;
- var args = arguments;
+ var pc = this;
- var offerOptions;
- if (arguments.length === 1 && typeof arguments[0] !== 'function') {
- offerOptions = arguments[0];
- } else if (arguments.length === 3) {
- offerOptions = arguments[2];
+ if (this._isClosed) {
+ return Promise.reject(makeError('InvalidStateError',
+ 'Can not call createOffer after close'));
}
var numAudioTracks = this.transceivers.filter(function(t) {
@@ -1202,6 +1263,7 @@ module.exports = function(window, edgeVersion) {
}).length;
// Determine number of audio and video tracks we need to send/recv.
+ var offerOptions = arguments[0];
if (offerOptions) {
// Reject Chrome legacy constraints.
if (offerOptions.mandatory || offerOptions.optional) {
@@ -1265,8 +1327,8 @@ module.exports = function(window, edgeVersion) {
transceiver.mid = mid;
if (!transceiver.iceGatherer) {
- transceiver.iceGatherer = self._createIceGatherer(sdpMLineIndex,
- self.usingBundle);
+ transceiver.iceGatherer = pc._createIceGatherer(sdpMLineIndex,
+ pc.usingBundle);
}
var localCapabilities = window.RTCRtpSender.getCapabilities(kind);
@@ -1320,11 +1382,11 @@ module.exports = function(window, edgeVersion) {
this.transceivers.forEach(function(transceiver, sdpMLineIndex) {
sdp += writeMediaSection(transceiver, transceiver.localCapabilities,
- 'offer', transceiver.stream, self._dtlsRole);
+ 'offer', transceiver.stream, pc._dtlsRole);
sdp += 'a=rtcp-rsize\r\n';
- if (transceiver.iceGatherer && self.iceGatheringState !== 'new' &&
- (sdpMLineIndex === 0 || !self.usingBundle)) {
+ if (transceiver.iceGatherer && pc.iceGatheringState !== 'new' &&
+ (sdpMLineIndex === 0 || !pc.usingBundle)) {
transceiver.iceGatherer.getLocalCandidates().forEach(function(cand) {
cand.component = 1;
sdp += 'a=' + SDPUtils.writeCandidate(cand) + '\r\n';
@@ -1340,19 +1402,16 @@ module.exports = function(window, edgeVersion) {
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);
- });
+ return Promise.resolve(desc);
};
RTCPeerConnection.prototype.createAnswer = function() {
- var self = this;
- var args = arguments;
+ var pc = this;
+
+ if (this._isClosed) {
+ return Promise.reject(makeError('InvalidStateError',
+ 'Can not call createAnswer after close'));
+ }
var sdp = SDPUtils.writeSessionBoilerplate(this._sdpSessionId,
this._sdpSessionVersion++);
@@ -1406,7 +1465,7 @@ module.exports = function(window, edgeVersion) {
}
sdp += writeMediaSection(transceiver, commonCapabilities,
- 'answer', transceiver.stream, self._dtlsRole);
+ 'answer', transceiver.stream, pc._dtlsRole);
if (transceiver.rtcpParameters &&
transceiver.rtcpParameters.reducedSize) {
sdp += 'a=rtcp-rsize\r\n';
@@ -1417,18 +1476,10 @@ module.exports = function(window, edgeVersion) {
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);
- });
+ return Promise.resolve(desc);
};
RTCPeerConnection.prototype.addIceCandidate = function(candidate) {
- var err;
var sections;
if (!candidate || candidate.candidate === '') {
for (var j = 0; j < this.transceivers.length; j++) {
@@ -1446,9 +1497,8 @@ module.exports = function(window, edgeVersion) {
} 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';
+ return Promise.reject(makeError('InvalidStateError',
+ 'Can not add ICE candidate without a remote description'));
} else {
var sdpMLineIndex = candidate.sdpMLineIndex;
if (candidate.sdpMid) {
@@ -1479,42 +1529,27 @@ module.exports = function(window, edgeVersion) {
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';
+ return Promise.reject(makeError('OperationError',
+ 'Can not add ICE candidate'));
}
}
- 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('');
+ // update the remoteDescription.
+ var candidateString = candidate.candidate.trim();
+ if (candidateString.indexOf('a=') === 0) {
+ candidateString = candidateString.substr(2);
}
+ sections = SDPUtils.splitSections(this.remoteDescription.sdp);
+ sections[sdpMLineIndex + 1] += 'a=' +
+ (cand.type ? candidateString : 'end-of-candidates')
+ + '\r\n';
+ this.remoteDescription.sdp = sections.join('');
} else {
- err = new Error('Can not add ICE candidate');
- err.name = 'OperationError';
+ return Promise.reject(makeError('OperationError',
+ 'Can not add ICE candidate'));
}
}
- 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();
- }
- });
+ return Promise.resolve();
};
RTCPeerConnection.prototype.getStats = function() {
@@ -1527,8 +1562,6 @@ module.exports = function(window, edgeVersion) {
}
});
});
- var cb = arguments.length > 1 && typeof arguments[1] === 'function' &&
- arguments[1];
var fixStatsType = function(stat) {
return {
inboundrtp: 'inbound-rtp',
@@ -1548,13 +1581,74 @@ module.exports = function(window, edgeVersion) {
results.set(id, result[id]);
});
});
- if (cb) {
- cb.apply(null, results);
- }
resolve(results);
});
});
};
+
+ // legacy callback shims. Should be moved to adapter.js some days.
+ var methods = ['createOffer', 'createAnswer'];
+ methods.forEach(function(method) {
+ var nativeMethod = RTCPeerConnection.prototype[method];
+ RTCPeerConnection.prototype[method] = function() {
+ var args = arguments;
+ if (typeof args[0] === 'function' ||
+ typeof args[1] === 'function') { // legacy
+ return nativeMethod.apply(this, [arguments[2]])
+ .then(function(description) {
+ if (typeof args[0] === 'function') {
+ args[0].apply(null, [description]);
+ }
+ }, function(error) {
+ if (typeof args[1] === 'function') {
+ args[1].apply(null, [error]);
+ }
+ });
+ }
+ return nativeMethod.apply(this, arguments);
+ };
+ });
+
+ methods = ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate'];
+ methods.forEach(function(method) {
+ var nativeMethod = RTCPeerConnection.prototype[method];
+ RTCPeerConnection.prototype[method] = function() {
+ var args = arguments;
+ if (typeof args[1] === 'function' ||
+ typeof args[2] === 'function') { // legacy
+ return nativeMethod.apply(this, arguments)
+ .then(function() {
+ if (typeof args[1] === 'function') {
+ args[1].apply(null);
+ }
+ }, function(error) {
+ if (typeof args[2] === 'function') {
+ args[2].apply(null, [error]);
+ }
+ });
+ }
+ return nativeMethod.apply(this, arguments);
+ };
+ });
+
+ // getStats is special. It doesn't have a spec legacy method yet we support
+ // getStats(something, cb) without error callbacks.
+ ['getStats'].forEach(function(method) {
+ var nativeMethod = RTCPeerConnection.prototype[method];
+ RTCPeerConnection.prototype[method] = function() {
+ var args = arguments;
+ if (typeof args[1] === 'function') {
+ return nativeMethod.apply(this, arguments)
+ .then(function() {
+ if (typeof args[1] === 'function') {
+ args[1].apply(null);
+ }
+ });
+ }
+ return nativeMethod.apply(this, arguments);
+ };
+ });
+
return RTCPeerConnection;
};
@@ -2261,14 +2355,6 @@ module.exports = function(dependencies, opts) {
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
@@ -2282,6 +2368,15 @@ module.exports = function(dependencies, opts) {
var safariShim = require('./safari/safari_shim') || null;
var commonShim = require('./common_shim') || null;
+ // Export to the adapter global object visible in the browser.
+ var adapter = {
+ browserDetails: browserDetails,
+ commonShim: commonShim,
+ extractVersion: utils.extractVersion,
+ disableLog: utils.disableLog,
+ disableWarnings: utils.disableWarnings
+ };
+
// Shim browser if found.
switch (browserDetails.browser) {
case 'chrome':
@@ -2304,6 +2399,8 @@ module.exports = function(dependencies, opts) {
chromeShim.shimGetSendersWithDtmf(window);
commonShim.shimRTCIceCandidate(window);
+ commonShim.shimMaxMessageSize(window);
+ commonShim.shimSendThrowTypeError(window);
break;
case 'firefox':
if (!firefoxShim || !firefoxShim.shimPeerConnection ||
@@ -2323,6 +2420,8 @@ module.exports = function(dependencies, opts) {
firefoxShim.shimRemoveStream(window);
commonShim.shimRTCIceCandidate(window);
+ commonShim.shimMaxMessageSize(window);
+ commonShim.shimSendThrowTypeError(window);
break;
case 'edge':
if (!edgeShim || !edgeShim.shimPeerConnection || !options.shimEdge) {
@@ -2339,6 +2438,9 @@ module.exports = function(dependencies, opts) {
edgeShim.shimReplaceTrack(window);
// the edge shim implements the full RTCIceCandidate object.
+
+ commonShim.shimMaxMessageSize(window);
+ commonShim.shimSendThrowTypeError(window);
break;
case 'safari':
if (!safariShim || !options.shimSafari) {
@@ -2359,6 +2461,8 @@ module.exports = function(dependencies, opts) {
safariShim.shimCreateOfferLegacy(window);
commonShim.shimRTCIceCandidate(window);
+ commonShim.shimMaxMessageSize(window);
+ commonShim.shimSendThrowTypeError(window);
break;
default:
logging('Unsupported browser!');
@@ -2382,7 +2486,8 @@ module.exports = function(dependencies, opts) {
var utils = require('../utils.js');
var logging = utils.log;
-var chromeShim = {
+module.exports = {
+ shimGetUserMedia: require('./getusermedia'),
shimMediaStream: function(window) {
window.MediaStream = window.MediaStream || window.webkitMediaStream;
},
@@ -2447,6 +2552,13 @@ var chromeShim = {
}
return origSetRemoteDescription.apply(pc, arguments);
};
+ } else if (!('RTCRtpTransceiver' in window)) {
+ utils.wrapPeerConnectionEvent(window, 'track', function(e) {
+ if (!e.transceiver) {
+ e.transceiver = {receiver: e.receiver};
+ }
+ return e;
+ });
}
},
@@ -2598,12 +2710,88 @@ var chromeShim = {
}
},
+ shimAddTrackRemoveTrackWithNative: function(window) {
+ // shim addTrack/removeTrack with native variants in order to make
+ // the interactions with legacy getLocalStreams behave as in other browsers.
+ // Keeps a mapping stream.id => [stream, rtpsenders...]
+ window.RTCPeerConnection.prototype.getLocalStreams = function() {
+ var pc = this;
+ this._shimmedLocalStreams = this._shimmedLocalStreams || {};
+ return Object.keys(this._shimmedLocalStreams).map(function(streamId) {
+ return pc._shimmedLocalStreams[streamId][0];
+ });
+ };
+
+ var origAddTrack = window.RTCPeerConnection.prototype.addTrack;
+ window.RTCPeerConnection.prototype.addTrack = function(track, stream) {
+ if (!stream) {
+ return origAddTrack.apply(this, arguments);
+ }
+ this._shimmedLocalStreams = this._shimmedLocalStreams || {};
+
+ var sender = origAddTrack.apply(this, arguments);
+ if (!this._shimmedLocalStreams[stream.id]) {
+ this._shimmedLocalStreams[stream.id] = [stream, sender];
+ } else if (this._shimmedLocalStreams[stream.id].indexOf(sender) === -1) {
+ this._shimmedLocalStreams[stream.id].push(sender);
+ }
+ return sender;
+ };
+
+ var origAddStream = window.RTCPeerConnection.prototype.addStream;
+ window.RTCPeerConnection.prototype.addStream = function(stream) {
+ var pc = this;
+ this._shimmedLocalStreams = this._shimmedLocalStreams || {};
+
+ 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');
+ }
+ });
+ var existingSenders = pc.getSenders();
+ origAddStream.apply(this, arguments);
+ var newSenders = pc.getSenders().filter(function(newSender) {
+ return existingSenders.indexOf(newSender) === -1;
+ });
+ this._shimmedLocalStreams[stream.id] = [stream].concat(newSenders);
+ };
+
+ var origRemoveStream = window.RTCPeerConnection.prototype.removeStream;
+ window.RTCPeerConnection.prototype.removeStream = function(stream) {
+ this._shimmedLocalStreams = this._shimmedLocalStreams || {};
+ delete this._shimmedLocalStreams[stream.id];
+ return origRemoveStream.apply(this, arguments);
+ };
+
+ var origRemoveTrack = window.RTCPeerConnection.prototype.removeTrack;
+ window.RTCPeerConnection.prototype.removeTrack = function(sender) {
+ var pc = this;
+ this._shimmedLocalStreams = this._shimmedLocalStreams || {};
+ if (sender) {
+ Object.keys(this._shimmedLocalStreams).forEach(function(streamId) {
+ var idx = pc._shimmedLocalStreams[streamId].indexOf(sender);
+ if (idx !== -1) {
+ pc._shimmedLocalStreams[streamId].splice(idx, 1);
+ }
+ if (pc._shimmedLocalStreams[streamId].length === 1) {
+ delete pc._shimmedLocalStreams[streamId];
+ }
+ });
+ }
+ return origRemoveTrack.apply(this, arguments);
+ };
+ },
+
shimAddTrackRemoveTrack: function(window) {
var browserDetails = utils.detectBrowser(window);
// shim addTrack and removeTrack.
if (window.RTCPeerConnection.prototype.addTrack &&
- browserDetails.version >= 64) {
- return;
+ browserDetails.version >= 65) {
+ return this.shimAddTrackRemoveTrackWithNative(window);
}
// also shim pc.getLocalStreams when addTrack is shimmed
@@ -2611,11 +2799,11 @@ var chromeShim = {
var origGetLocalStreams = window.RTCPeerConnection.prototype
.getLocalStreams;
window.RTCPeerConnection.prototype.getLocalStreams = function() {
- var self = this;
+ var pc = this;
var nativeStreams = origGetLocalStreams.apply(this);
- self._reverseStreams = self._reverseStreams || {};
+ pc._reverseStreams = pc._reverseStreams || {};
return nativeStreams.map(function(stream) {
- return self._reverseStreams[stream.id];
+ return pc._reverseStreams[stream.id];
});
};
@@ -2841,7 +3029,7 @@ var chromeShim = {
var browserDetails = utils.detectBrowser(window);
// The RTCPeerConnection object.
- if (!window.RTCPeerConnection) {
+ if (!window.RTCPeerConnection && window.webkitRTCPeerConnection) {
window.RTCPeerConnection = function(pcConfig, pcConstraints) {
// Translate iceTransportPolicy to iceTransports,
// see https://code.google.com/p/webrtc/issues/detail?id=4869
@@ -2897,7 +3085,7 @@ var chromeShim = {
var origGetStats = window.RTCPeerConnection.prototype.getStats;
window.RTCPeerConnection.prototype.getStats = function(selector,
successCallback, errorCallback) {
- var self = this;
+ var pc = this;
var args = arguments;
// If selector is a function then we are in the old style stats so just
@@ -2952,7 +3140,7 @@ var chromeShim = {
// promise-support
return new Promise(function(resolve, reject) {
- origGetStats.apply(self, [
+ origGetStats.apply(pc, [
function(response) {
resolve(makeMapStats(fixChromeStats_(response)));
}, reject]);
@@ -2966,9 +3154,9 @@ var chromeShim = {
var nativeMethod = window.RTCPeerConnection.prototype[method];
window.RTCPeerConnection.prototype[method] = function() {
var args = arguments;
- var self = this;
+ var pc = this;
var promise = new Promise(function(resolve, reject) {
- nativeMethod.apply(self, [args[0], resolve, reject]);
+ nativeMethod.apply(pc, [args[0], resolve, reject]);
});
if (args.length < 2) {
return promise;
@@ -2991,12 +3179,12 @@ var chromeShim = {
['createOffer', 'createAnswer'].forEach(function(method) {
var nativeMethod = window.RTCPeerConnection.prototype[method];
window.RTCPeerConnection.prototype[method] = function() {
- var self = this;
+ var pc = 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]);
+ nativeMethod.apply(pc, [resolve, reject, opts]);
});
}
return nativeMethod.apply(this, arguments);
@@ -3031,18 +3219,6 @@ var chromeShim = {
}
};
-
-// 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.
@@ -3299,57 +3475,6 @@ module.exports = function(window) {
var SDPUtils = require('sdp');
var utils = require('./utils');
-// Wraps the peerconnection event eventNameToWrap in a function
-// which returns the modified event object.
-function wrapPeerConnectionEvent(window, eventNameToWrap, wrapper) {
- if (!window.RTCPeerConnection) {
- return;
- }
- var proto = window.RTCPeerConnection.prototype;
- var nativeAddEventListener = proto.addEventListener;
- proto.addEventListener = function(nativeEventName, cb) {
- if (nativeEventName !== eventNameToWrap) {
- return nativeAddEventListener.apply(this, arguments);
- }
- var wrappedCallback = function(e) {
- cb(wrapper(e));
- };
- this._eventMap = this._eventMap || {};
- this._eventMap[cb] = wrappedCallback;
- return nativeAddEventListener.apply(this, [nativeEventName,
- wrappedCallback]);
- };
-
- var nativeRemoveEventListener = proto.removeEventListener;
- proto.removeEventListener = function(nativeEventName, cb) {
- if (nativeEventName !== eventNameToWrap || !this._eventMap
- || !this._eventMap[cb]) {
- return nativeRemoveEventListener.apply(this, arguments);
- }
- var unwrappedCb = this._eventMap[cb];
- delete this._eventMap[cb];
- return nativeRemoveEventListener.apply(this, [nativeEventName,
- unwrappedCb]);
- };
-
- Object.defineProperty(proto, 'on' + eventNameToWrap, {
- get: function() {
- return this['_on' + eventNameToWrap];
- },
- set: function(cb) {
- if (this['_on' + eventNameToWrap]) {
- this.removeEventListener(eventNameToWrap,
- this['_on' + eventNameToWrap]);
- delete this['_on' + eventNameToWrap];
- }
- if (cb) {
- this.addEventListener(eventNameToWrap,
- this['_on' + eventNameToWrap] = cb);
- }
- }
- });
-}
-
module.exports = {
shimRTCIceCandidate: function(window) {
// foundation is arbitrarily chosen as an indicator for full support for
@@ -3388,7 +3513,7 @@ module.exports = {
// Hook up the augmented candidate in onicecandidate and
// addEventListener('icecandidate', ...)
- wrapPeerConnectionEvent(window, 'icecandidate', function(e) {
+ utils.wrapPeerConnectionEvent(window, 'icecandidate', function(e) {
if (e.candidate) {
Object.defineProperty(e, 'candidate', {
value: new window.RTCIceCandidate(e.candidate),
@@ -3450,6 +3575,165 @@ module.exports = {
}
return nativeSetAttribute.apply(this, arguments);
};
+ },
+
+ shimMaxMessageSize: function(window) {
+ if (window.RTCSctpTransport || !window.RTCPeerConnection) {
+ return;
+ }
+ var browserDetails = utils.detectBrowser(window);
+
+ if (!('sctp' in window.RTCPeerConnection.prototype)) {
+ Object.defineProperty(window.RTCPeerConnection.prototype, 'sctp', {
+ get: function() {
+ return typeof this._sctp === 'undefined' ? null : this._sctp;
+ }
+ });
+ }
+
+ var sctpInDescription = function(description) {
+ var sections = SDPUtils.splitSections(description.sdp);
+ sections.shift();
+ return sections.some(function(mediaSection) {
+ var mLine = SDPUtils.parseMLine(mediaSection);
+ return mLine && mLine.kind === 'application'
+ && mLine.protocol.indexOf('SCTP') !== -1;
+ });
+ };
+
+ var getRemoteFirefoxVersion = function(description) {
+ // TODO: Is there a better solution for detecting Firefox?
+ var match = description.sdp.match(/mozilla...THIS_IS_SDPARTA-(\d+)/);
+ if (match === null || match.length < 2) {
+ return -1;
+ }
+ var version = parseInt(match[1], 10);
+ // Test for NaN (yes, this is ugly)
+ return version !== version ? -1 : version;
+ };
+
+ var getCanSendMaxMessageSize = function(remoteIsFirefox) {
+ // Every implementation we know can send at least 64 KiB.
+ // Note: Although Chrome is technically able to send up to 256 KiB, the
+ // data does not reach the other peer reliably.
+ // See: https://bugs.chromium.org/p/webrtc/issues/detail?id=8419
+ var canSendMaxMessageSize = 65536;
+ if (browserDetails.browser === 'firefox') {
+ if (browserDetails.version < 57) {
+ if (remoteIsFirefox === -1) {
+ // FF < 57 will send in 16 KiB chunks using the deprecated PPID
+ // fragmentation.
+ canSendMaxMessageSize = 16384;
+ } else {
+ // However, other FF (and RAWRTC) can reassemble PPID-fragmented
+ // messages. Thus, supporting ~2 GiB when sending.
+ canSendMaxMessageSize = 2147483637;
+ }
+ } else {
+ // Currently, all FF >= 57 will reset the remote maximum message size
+ // to the default value when a data channel is created at a later
+ // stage. :(
+ // See: https://bugzilla.mozilla.org/show_bug.cgi?id=1426831
+ canSendMaxMessageSize =
+ browserDetails.version === 57 ? 65535 : 65536;
+ }
+ }
+ return canSendMaxMessageSize;
+ };
+
+ var getMaxMessageSize = function(description, remoteIsFirefox) {
+ // Note: 65536 bytes is the default value from the SDP spec. Also,
+ // every implementation we know supports receiving 65536 bytes.
+ var maxMessageSize = 65536;
+
+ // FF 57 has a slightly incorrect default remote max message size, so
+ // we need to adjust it here to avoid a failure when sending.
+ // See: https://bugzilla.mozilla.org/show_bug.cgi?id=1425697
+ if (browserDetails.browser === 'firefox'
+ && browserDetails.version === 57) {
+ maxMessageSize = 65535;
+ }
+
+ var match = SDPUtils.matchPrefix(description.sdp, 'a=max-message-size:');
+ if (match.length > 0) {
+ maxMessageSize = parseInt(match[0].substr(19), 10);
+ } else if (browserDetails.browser === 'firefox' &&
+ remoteIsFirefox !== -1) {
+ // If the maximum message size is not present in the remote SDP and
+ // both local and remote are Firefox, the remote peer can receive
+ // ~2 GiB.
+ maxMessageSize = 2147483637;
+ }
+ return maxMessageSize;
+ };
+
+ var origSetRemoteDescription =
+ window.RTCPeerConnection.prototype.setRemoteDescription;
+ window.RTCPeerConnection.prototype.setRemoteDescription = function() {
+ var pc = this;
+ pc._sctp = null;
+
+ if (sctpInDescription(arguments[0])) {
+ // Check if the remote is FF.
+ var isFirefox = getRemoteFirefoxVersion(arguments[0]);
+
+ // Get the maximum message size the local peer is capable of sending
+ var canSendMMS = getCanSendMaxMessageSize(isFirefox);
+
+ // Get the maximum message size of the remote peer.
+ var remoteMMS = getMaxMessageSize(arguments[0], isFirefox);
+
+ // Determine final maximum message size
+ var maxMessageSize;
+ if (canSendMMS === 0 && remoteMMS === 0) {
+ maxMessageSize = Number.POSITIVE_INFINITY;
+ } else if (canSendMMS === 0 || remoteMMS === 0) {
+ maxMessageSize = Math.max(canSendMMS, remoteMMS);
+ } else {
+ maxMessageSize = Math.min(canSendMMS, remoteMMS);
+ }
+
+ // Create a dummy RTCSctpTransport object and the 'maxMessageSize'
+ // attribute.
+ var sctp = {};
+ Object.defineProperty(sctp, 'maxMessageSize', {
+ get: function() {
+ return maxMessageSize;
+ }
+ });
+ pc._sctp = sctp;
+ }
+
+ return origSetRemoteDescription.apply(pc, arguments);
+ };
+ },
+
+ shimSendThrowTypeError: function(window) {
+ // Note: Although Firefox >= 57 has a native implementation, the maximum
+ // message size can be reset for all data channels at a later stage.
+ // See: https://bugzilla.mozilla.org/show_bug.cgi?id=1426831
+
+ var origCreateDataChannel =
+ window.RTCPeerConnection.prototype.createDataChannel;
+ window.RTCPeerConnection.prototype.createDataChannel = function() {
+ var pc = this;
+ var dataChannel = origCreateDataChannel.apply(pc, arguments);
+ var origDataChannelSend = dataChannel.send;
+
+ // Patch 'send' method
+ dataChannel.send = function() {
+ var dc = this;
+ var data = arguments[0];
+ var length = data.length || data.size || data.byteLength;
+ if (length > pc.sctp.maxMessageSize) {
+ throw new DOMException('Message too large (can send a maximum of ' +
+ pc.sctp.maxMessageSize + ' bytes)', 'TypeError');
+ }
+ return origDataChannelSend.apply(dc, arguments);
+ };
+
+ return dataChannel;
+ };
}
};
@@ -3584,7 +3868,8 @@ module.exports = function(window) {
var utils = require('../utils');
-var firefoxShim = {
+module.exports = {
+ shimGetUserMedia: require('./getusermedia'),
shimOnTrack: function(window) {
if (typeof window === 'object' && window.RTCPeerConnection && !('ontrack' in
window.RTCPeerConnection.prototype)) {
@@ -3789,15 +4074,6 @@ var firefoxShim = {
}
};
-// Expose public methods.
-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){
/*
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
@@ -4020,13 +4296,7 @@ module.exports = function(window) {
'use strict';
var utils = require('../utils');
-var safariShim = {
- // TODO: DrAlex, should be here, double check against LayoutTests
-
- // TODO: once the back-end for the mac port is done, add.
- // TODO: check for webkitGTK+
- // shimPeerConnection: function() { },
-
+module.exports = {
shimLocalStreamsAPI: function(window) {
if (typeof window !== 'object' || !window.RTCPeerConnection) {
return;
@@ -4068,9 +4338,9 @@ var safariShim = {
if (this._localStreams.indexOf(stream) === -1) {
this._localStreams.push(stream);
}
- var self = this;
+ var pc = this;
stream.getTracks().forEach(function(track) {
- _addTrack.call(self, track, stream);
+ _addTrack.call(pc, track, stream);
});
};
@@ -4095,11 +4365,11 @@ var safariShim = {
return;
}
this._localStreams.splice(index, 1);
- var self = this;
+ var pc = this;
var tracks = stream.getTracks();
this.getSenders().forEach(function(sender) {
if (tracks.indexOf(sender.track) !== -1) {
- self.removeTrack(sender);
+ pc.removeTrack(sender);
}
});
};
@@ -4120,24 +4390,26 @@ var safariShim = {
return this._onaddstream;
},
set: function(f) {
+ var pc = this;
if (this._onaddstream) {
this.removeEventListener('addstream', this._onaddstream);
this.removeEventListener('track', this._onaddstreampoly);
}
this.addEventListener('addstream', this._onaddstream = f);
this.addEventListener('track', this._onaddstreampoly = function(e) {
- var stream = e.streams[0];
- if (!this._remoteStreams) {
- this._remoteStreams = [];
- }
- if (this._remoteStreams.indexOf(stream) >= 0) {
- return;
- }
- this._remoteStreams.push(stream);
- var event = new Event('addstream');
- event.stream = e.streams[0];
- this.dispatchEvent(event);
- }.bind(this));
+ e.streams.forEach(function(stream) {
+ if (!pc._remoteStreams) {
+ pc._remoteStreams = [];
+ }
+ if (pc._remoteStreams.indexOf(stream) >= 0) {
+ return;
+ }
+ pc._remoteStreams.push(stream);
+ var event = new Event('addstream');
+ event.stream = stream;
+ pc.dispatchEvent(event);
+ });
+ });
}
});
}
@@ -4277,9 +4549,17 @@ var safariShim = {
});
if (offerOptions.offerToReceiveAudio === false && audioTransceiver) {
if (audioTransceiver.direction === 'sendrecv') {
- audioTransceiver.setDirection('sendonly');
+ if (audioTransceiver.setDirection) {
+ audioTransceiver.setDirection('sendonly');
+ } else {
+ audioTransceiver.direction = 'sendonly';
+ }
} else if (audioTransceiver.direction === 'recvonly') {
- audioTransceiver.setDirection('inactive');
+ if (audioTransceiver.setDirection) {
+ audioTransceiver.setDirection('inactive');
+ } else {
+ audioTransceiver.direction = 'inactive';
+ }
}
} else if (offerOptions.offerToReceiveAudio === true &&
!audioTransceiver) {
@@ -4306,19 +4586,6 @@ var safariShim = {
}
};
-// Expose public methods.
-module.exports = {
- shimCallbacksAPI: safariShim.shimCallbacksAPI,
- shimLocalStreamsAPI: safariShim.shimLocalStreamsAPI,
- shimRemoteStreamsAPI: safariShim.shimRemoteStreamsAPI,
- shimGetUserMedia: safariShim.shimGetUserMedia,
- shimRTCIceServerUrls: safariShim.shimRTCIceServerUrls,
- shimTrackEventTransceiver: safariShim.shimTrackEventTransceiver,
- shimCreateOfferLegacy: safariShim.shimCreateOfferLegacy
- // TODO
- // shimPeerConnection: safariShim.shimPeerConnection
-};
-
},{"../utils":13}],13:[function(require,module,exports){
/*
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
@@ -4333,8 +4600,74 @@ module.exports = {
var logDisabled_ = true;
var deprecationWarnings_ = true;
+/**
+ * Extract browser version out of the provided user agent string.
+ *
+ * @param {!string} uastring userAgent string.
+ * @param {!string} expr Regular expression used as match criteria.
+ * @param {!number} pos position in the version string to be returned.
+ * @return {!number} browser version.
+ */
+function extractVersion(uastring, expr, pos) {
+ var match = uastring.match(expr);
+ return match && match.length >= pos && parseInt(match[pos], 10);
+}
+
+// Wraps the peerconnection event eventNameToWrap in a function
+// which returns the modified event object.
+function wrapPeerConnectionEvent(window, eventNameToWrap, wrapper) {
+ if (!window.RTCPeerConnection) {
+ return;
+ }
+ var proto = window.RTCPeerConnection.prototype;
+ var nativeAddEventListener = proto.addEventListener;
+ proto.addEventListener = function(nativeEventName, cb) {
+ if (nativeEventName !== eventNameToWrap) {
+ return nativeAddEventListener.apply(this, arguments);
+ }
+ var wrappedCallback = function(e) {
+ cb(wrapper(e));
+ };
+ this._eventMap = this._eventMap || {};
+ this._eventMap[cb] = wrappedCallback;
+ return nativeAddEventListener.apply(this, [nativeEventName,
+ wrappedCallback]);
+ };
+
+ var nativeRemoveEventListener = proto.removeEventListener;
+ proto.removeEventListener = function(nativeEventName, cb) {
+ if (nativeEventName !== eventNameToWrap || !this._eventMap
+ || !this._eventMap[cb]) {
+ return nativeRemoveEventListener.apply(this, arguments);
+ }
+ var unwrappedCb = this._eventMap[cb];
+ delete this._eventMap[cb];
+ return nativeRemoveEventListener.apply(this, [nativeEventName,
+ unwrappedCb]);
+ };
+
+ Object.defineProperty(proto, 'on' + eventNameToWrap, {
+ get: function() {
+ return this['_on' + eventNameToWrap];
+ },
+ set: function(cb) {
+ if (this['_on' + eventNameToWrap]) {
+ this.removeEventListener(eventNameToWrap,
+ this['_on' + eventNameToWrap]);
+ delete this['_on' + eventNameToWrap];
+ }
+ if (cb) {
+ this.addEventListener(eventNameToWrap,
+ this['_on' + eventNameToWrap] = cb);
+ }
+ }
+ });
+}
+
// Utility methods.
-var utils = {
+module.exports = {
+ extractVersion: extractVersion,
+ wrapPeerConnectionEvent: wrapPeerConnectionEvent,
disableLog: function(bool) {
if (typeof bool !== 'boolean') {
return new Error('Argument type: ' + typeof bool +
@@ -4380,19 +4713,6 @@ var utils = {
' instead.');
},
- /**
- * Extract browser version out of the provided user agent string.
- *
- * @param {!string} uastring userAgent string.
- * @param {!string} expr Regular expression used as match criteria.
- * @param {!number} pos position in the version string to be returned.
- * @return {!number} browser version.
- */
- extractVersion: function(uastring, expr, pos) {
- var match = uastring.match(expr);
- return match && match.length >= pos && parseInt(match[pos], 10);
- },
-
/**
* Browser detector.
*
@@ -4413,38 +4733,25 @@ var utils = {
return result;
}
- // Firefox.
- if (navigator.mozGetUserMedia) {
+ if (navigator.mozGetUserMedia) { // Firefox.
result.browser = 'firefox';
- result.version = this.extractVersion(navigator.userAgent,
+ result.version = extractVersion(navigator.userAgent,
/Firefox\/(\d+)\./, 1);
} else if (navigator.webkitGetUserMedia) {
- // Chrome, Chromium, Webview, Opera, all use the chrome shim for now
- if (window.webkitRTCPeerConnection) {
- result.browser = 'chrome';
- result.version = this.extractVersion(navigator.userAgent,
+ // Chrome, Chromium, Webview, Opera.
+ // Version matches Chrome/WebRTC version.
+ result.browser = 'chrome';
+ result.version = extractVersion(navigator.userAgent,
/Chrom(e|ium)\/(\d+)\./, 2);
- } else { // Safari (in an unpublished version) or unknown webkit-based.
- if (navigator.userAgent.match(/Version\/(\d+).(\d+)/)) {
- result.browser = 'safari';
- result.version = this.extractVersion(navigator.userAgent,
- /AppleWebKit\/(\d+)\./, 1);
- } else { // unknown webkit-based browser.
- result.browser = 'Unsupported webkit-based browser ' +
- 'with GUM support but no WebRTC support.';
- return result;
- }
- }
} else if (navigator.mediaDevices &&
navigator.userAgent.match(/Edge\/(\d+).(\d+)$/)) { // Edge.
result.browser = 'edge';
- result.version = this.extractVersion(navigator.userAgent,
+ result.version = extractVersion(navigator.userAgent,
/Edge\/(\d+).(\d+)$/, 2);
} else if (navigator.mediaDevices &&
- navigator.userAgent.match(/AppleWebKit\/(\d+)\./)) {
- // Safari, with webkitGetUserMedia removed.
+ navigator.userAgent.match(/AppleWebKit\/(\d+)\./)) { // Safari.
result.browser = 'safari';
- result.version = this.extractVersion(navigator.userAgent,
+ result.version = extractVersion(navigator.userAgent,
/AppleWebKit\/(\d+)\./, 1);
} else { // Default fallthrough: not supported.
result.browser = 'Not a supported browser.';
@@ -4452,19 +4759,7 @@ var utils = {
}
return result;
- },
-
-};
-
-// Export.
-module.exports = {
- log: utils.log,
- deprecated: utils.deprecated,
- disableLog: utils.disableLog,
- disableWarnings: utils.disableWarnings,
- extractVersion: utils.extractVersion,
- shimCreateObjectURL: utils.shimCreateObjectURL,
- detectBrowser: utils.detectBrowser.bind(utils)
+ }
};
},{}]},{},[3])(3)
diff --git a/html5/verto/video_demo-live_canvas/js/verto-min.js b/html5/verto/video_demo-live_canvas/js/verto-min.js
index fdf5432fa5..78f8bc450e 100644
--- a/html5/verto/video_demo-live_canvas/js/verto-min.js
+++ b/html5/verto/video_demo-live_canvas/js/verto-min.js
@@ -307,7 +307,7 @@ navigator.getUserMedia({audio:(has_audio>0?true:false),video:(has_video>0?true:f
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=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';}
+$.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.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+' '+
@@ -317,109 +317,116 @@ 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;});}
+return url.indexOf('stun:')===0&&edgeVersion>=14393&&url.indexOf('?transport=udp')===-1;});delete server.url;server.urls=isString?urls[0]:urls;return!!urls.length;}});}
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';}
+function addTrackToStreamAndFireEvent(track,stream){stream.addTrack(track);var e=new Event('addtrack');e.track=track;stream.dispatchEvent(e);}
+function removeTrackFromStreamAndFireEvent(track,stream){stream.removeTrack(track);var e=new Event('removetrack');e.track=track;stream.dispatchEvent(e);}
+function fireAddTrack(pc,track,receiver,streams){var trackEvent=new Event('track');trackEvent.track=track;trackEvent.receiver=receiver;trackEvent.transceiver={receiver:receiver};trackEvent.streams=streams;window.setTimeout(function(){pc._dispatchEvent('track',trackEvent);});}
+function makeError(name,description){var e=new Error(description);e.name=name;return e;}
+module.exports=function(window,edgeVersion){var RTCPeerConnection=function(config){var pc=this;var _eventTarget=document.createDocumentFragment();['addEventListener','removeEventListener','dispatchEvent'].forEach(function(method){pc[method]=_eventTarget[method].bind(_eventTarget);});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'){throw(makeError('NotSupportedError','rtcpMuxPolicy \'negotiate\' is not supported'));}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];}}
+this._config=config;this.transceivers=[];this._sdpSessionId=SDPUtils.generateSessionId();this._sdpSessionVersion=0;this._dtlsRole=undefined;this._isClosed=false;};RTCPeerConnection.prototype.onicecandidate=null;RTCPeerConnection.prototype.onaddstream=null;RTCPeerConnection.prototype.ontrack=null;RTCPeerConnection.prototype.onremovestream=null;RTCPeerConnection.prototype.onsignalingstatechange=null;RTCPeerConnection.prototype.oniceconnectionstatechange=null;RTCPeerConnection.prototype.onicegatheringstatechange=null;RTCPeerConnection.prototype.onnegotiationneeded=null;RTCPeerConnection.prototype.ondatachannel=null;RTCPeerConnection.prototype._dispatchEvent=function(name,event){if(this._isClosed){return;}
+this.dispatchEvent(event);if(typeof this['on'+name]==='function'){this['on'+name](event);}};RTCPeerConnection.prototype._emitGatheringStateChange=function(){var event=new Event('icegatheringstatechange');this._dispatchEvent('icegatheringstatechange',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,associatedRemoteMediaStreams:[],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 alreadyExists=this.transceivers.find(function(s){return s.track===track;});if(alreadyExists){throw makeError('InvalidAccessError','Track already exists.');}
+if(this.signalingState==='closed'){throw makeError('InvalidStateError','Attempted to call addTrack on a closed peerconnection.');}
+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;}
+transceiver.track=track;transceiver.stream=stream;transceiver.rtpSender=new window.RTCRtpSender(track,transceiver.dtlsTransport);return transceiver.rtpSender;};RTCPeerConnection.prototype.addStream=function(stream){var pc=this;if(edgeVersion>=15025){stream.getTracks().forEach(function(track){pc.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){pc.addTrack(track,clonedStream);});}};RTCPeerConnection.prototype.removeTrack=function(sender){if(!(sender instanceof window.RTCRtpSender)){throw new TypeError('Argument 1 of RTCPeerConnection.removeTrack '+'does not implement interface RTCRtpSender.');}
+var transceiver=this.transceivers.find(function(t){return t.rtpSender===sender;});if(!transceiver){throw makeError('InvalidAccessError','Sender was not created by this connection.');}
+var stream=transceiver.stream;transceiver.rtpSender.stop();transceiver.rtpSender=null;transceiver.track=null;transceiver.stream=null;var localStreams=this.transceivers.map(function(t){return t.stream;});if(localStreams.indexOf(stream)===-1&&this.localStreams.indexOf(stream)>-1){this.localStreams.splice(this.localStreams.indexOf(stream),1);}
+this._maybeFireNegotiationNeeded();};RTCPeerConnection.prototype.removeStream=function(stream){var pc=this;stream.getTracks().forEach(function(track){var sender=pc.getSenders().find(function(s){return s.track===track;});if(sender){pc.removeTrack(sender);}});};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 pc=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(pc.transceivers[sdpMLineIndex].candidates!==null){pc.transceivers[sdpMLineIndex].candidates.push(event.candidate);}};iceGatherer.addEventListener('localcandidate',this.transceivers[sdpMLineIndex].bufferCandidates);return iceGatherer;};RTCPeerConnection.prototype._gather=function(mid,sdpMLineIndex){var pc=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(pc.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 sections=SDPUtils.splitSections(pc.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';}
+pc.localDescription.sdp=sections.join('');var complete=pc.transceivers.every(function(transceiver){return transceiver.iceGatherer&&transceiver.iceGatherer.state==='completed';});if(pc.iceGatheringState!=='gathering'){pc.iceGatheringState='gathering';pc._emitGatheringStateChange();}
+if(!end){pc._dispatchEvent('icecandidate',event);}
+if(complete){pc._dispatchEvent('icecandidate',new Event('icecandidate'));pc.iceGatheringState='complete';pc._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 pc=this;var iceTransport=new window.RTCIceTransport(null);iceTransport.onicestatechange=function(){pc._updateConnectionState();};var dtlsTransport=new window.RTCDtlsTransport(iceTransport);dtlsTransport.ondtlsstatechange=function(){pc._updateConnectionState();};dtlsTransport.onerror=function(){Object.defineProperty(dtlsTransport,'state',{value:'failed',writable:true});pc._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(transceiver.recvEncodingParameters.length){params.encodings=transceiver.recvEncodingParameters;}
+params.rtcp={compound:transceiver.rtcpParameters.compound};if(transceiver.rtcpParameters.cname){params.rtcp.cname=transceiver.rtcpParameters.cname;}
+if(transceiver.sendEncodingParameters.length){params.rtcp.ssrc=transceiver.sendEncodingParameters[0].ssrc;}
+transceiver.rtpReceiver.receive(params);}};RTCPeerConnection.prototype.setLocalDescription=function(description){var pc=this;if(!isActionAllowedInSignalingState('setLocalDescription',description.type,this.signalingState)||this._isClosed){return Promise.reject(makeError('InvalidStateError','Can not set local '+description.type+' in state '+pc.signalingState));}
+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);pc.transceivers[sdpMLineIndex].localCapabilities=caps;});this.transceivers.forEach(function(transceiver,sdpMLineIndex){pc._gather(transceiver.mid,sdpMLineIndex);});}else if(description.type==='answer'){sections=SDPUtils.splitSections(pc.remoteDescription.sdp);sessionpart=sections.shift();var isIceLite=SDPUtils.matchPrefix(sessionpart,'a=ice-lite').length>0;sections.forEach(function(mediaSection,sdpMLineIndex){var transceiver=pc.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===0;if(!rejected&&!transceiver.isDatachannel){var remoteIceParameters=SDPUtils.getIceParameters(mediaSection,sessionpart);var remoteDtlsParameters=SDPUtils.getDtlsParameters(mediaSection,sessionpart);if(isIceLite){remoteDtlsParameters.role='server';}
+if(!pc.usingBundle||sdpMLineIndex===0){pc._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);}});}
+var params=getCommonCapabilities(localCapabilities,remoteCapabilities);pc._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);});}
+return Promise.resolve();};RTCPeerConnection.prototype.setRemoteDescription=function(description){var pc=this;if(!isActionAllowedInSignalingState('setRemoteDescription',description.type,this.signalingState)||this._isClosed){return Promise.reject(makeError('InvalidStateError','Can not set remote '+description.type+' in state '+pc.signalingState));}
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;}
+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===0;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'){pc.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);}
+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&&pc.transceivers[sdpMLineIndex]){pc._disposeIceAndDtlsTransports(sdpMLineIndex);pc.transceivers[sdpMLineIndex].iceGatherer=pc.transceivers[0].iceGatherer;pc.transceivers[sdpMLineIndex].iceTransport=pc.transceivers[0].iceTransport;pc.transceivers[sdpMLineIndex].dtlsTransport=pc.transceivers[0].dtlsTransport;if(pc.transceivers[sdpMLineIndex].rtpSender){pc.transceivers[sdpMLineIndex].rtpSender.setTransport(pc.transceivers[0].dtlsTransport);}
+if(pc.transceivers[sdpMLineIndex].rtpReceiver){pc.transceivers[sdpMLineIndex].rtpReceiver.setTransport(pc.transceivers[0].dtlsTransport);}}
+if(description.type==='offer'&&!rejected){transceiver=pc.transceivers[sdpMLineIndex]||pc._createTransceiver(kind);transceiver.mid=mid;if(!transceiver.iceGatherer){transceiver.iceGatherer=pc._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;}});}
+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&&remoteMsid.stream==='-'){}else 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(stream){addTrackToStreamAndFireEvent(track,stream);transceiver.associatedRemoteMediaStreams.push(stream);}
+receiverList.push([track,rtpReceiver,stream]);}}else if(transceiver.rtpReceiver&&transceiver.rtpReceiver.track){transceiver.associatedRemoteMediaStreams.forEach(function(s){var nativeTrack=s.getTracks().find(function(t){return t.id===transceiver.rtpReceiver.track.id;});if(nativeTrack){removeTrackFromStreamAndFireEvent(nativeTrack,s);}});transceiver.associatedRemoteMediaStreams=[];}
+transceiver.localCapabilities=localCapabilities;transceiver.remoteCapabilities=remoteCapabilities;transceiver.rtpReceiver=rtpReceiver;transceiver.rtcpParameters=rtcpParameters;transceiver.sendEncodingParameters=sendEncodingParameters;transceiver.recvEncodingParameters=recvEncodingParameters;pc._transceive(pc.transceivers[sdpMLineIndex],false,isNewTrack);}else if(description.type==='answer'&&!rejected){transceiver=pc.transceivers[sdpMLineIndex];iceGatherer=transceiver.iceGatherer;iceTransport=transceiver.iceTransport;dtlsTransport=transceiver.dtlsTransport;rtpReceiver=transceiver.rtpReceiver;sendEncodingParameters=transceiver.sendEncodingParameters;localCapabilities=transceiver.localCapabilities;pc.transceivers[sdpMLineIndex].recvEncodingParameters=recvEncodingParameters;pc.transceivers[sdpMLineIndex].remoteCapabilities=remoteCapabilities;pc.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';}
+pc._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();}
+addTrackToStreamAndFireEvent(track,streams[remoteMsid.stream]);receiverList.push([track,rtpReceiver,streams[remoteMsid.stream]]);}else{if(!streams.default){streams.default=new window.MediaStream();}
+addTrackToStreamAndFireEvent(track,streams.default);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);}});}
+Object.keys(streams).forEach(function(sid){var stream=streams[sid];if(stream.getTracks().length){if(pc.remoteStreams.indexOf(stream)===-1){pc.remoteStreams.push(stream);var event=new Event('addstream');event.stream=stream;window.setTimeout(function(){pc._dispatchEvent('addstream',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();}
+fireAddTrack(pc,track,receiver,[stream]);});}});receiverList.forEach(function(item){if(item[2]){return;}
+fireAddTrack(pc,item[0],item[1],[]);});window.setTimeout(function(){if(!(pc&&pc.transceivers)){return;}
+pc.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 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(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(transceiver.rtpReceiver){transceiver.rtpReceiver.stop();}});this._isClosed=true;this._updateSignalingState('closed');};RTCPeerConnection.prototype._updateSignalingState=function(newState){this.signalingState=newState;var event=new Event('signalingstatechange');this._dispatchEvent('signalingstatechange',event);};RTCPeerConnection.prototype._maybeFireNegotiationNeeded=function(){var pc=this;if(this.signalingState!=='stable'||this.needNegotiation===true){return;}
+this.needNegotiation=true;window.setTimeout(function(){if(pc.needNegotiation===false){return;}
+pc.needNegotiation=false;var event=new Event('negotiationneeded');pc._dispatchEvent('negotiationneeded',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('iceconnectionstatechange',event);}};RTCPeerConnection.prototype.createOffer=function(){var pc=this;if(this._isClosed){return Promise.reject(makeError('InvalidStateError','Can not call createOffer after close'));}
+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 offerOptions=arguments[0];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 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=pc._createIceGatherer(sdpMLineIndex,pc.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';}
+sdp+='a=ice-options:trickle\r\n';this.transceivers.forEach(function(transceiver,sdpMLineIndex){sdp+=writeMediaSection(transceiver,transceiver.localCapabilities,'offer',transceiver.stream,pc._dtlsRole);sdp+='a=rtcp-rsize\r\n';if(transceiver.iceGatherer&&pc.iceGatheringState!=='new'&&(sdpMLineIndex===0||!pc.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 Promise.resolve(desc);};RTCPeerConnection.prototype.createAnswer=function(){var pc=this;if(this._isClosed){return Promise.reject(makeError('InvalidStateError','Can not call createAnswer after close'));}
+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;}}}
+sdp+=writeMediaSection(transceiver,commonCapabilities,'answer',transceiver.stream,pc._dtlsRole);if(transceiver.rtcpParameters&&transceiver.rtcpParameters.reducedSize){sdp+='a=rtcp-rsize\r\n';}});var desc=new window.RTCSessionDescription({type:'answer',sdp:sdp});return Promise.resolve(desc);};RTCPeerConnection.prototype.addIceCandidate=function(candidate){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){return Promise.reject(makeError('InvalidStateError','Can not add ICE candidate without a remote description'));}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);}
+if(sdpMLineIndex===0||(sdpMLineIndex>0&&transceiver.iceTransport!==this.transceivers[0].iceTransport)){if(!maybeAddCandidate(transceiver.iceTransport,cand)){return Promise.reject(makeError('OperationError','Can not add ICE candidate'));}}
+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(' ');}
++'\r\n';this.remoteDescription.sdp=sections.join('');}else{return Promise.reject(makeError('OperationError','Can not add ICE candidate'));}}
+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 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]);});});resolve(results);});});};var methods=['createOffer','createAnswer'];methods.forEach(function(method){var nativeMethod=RTCPeerConnection.prototype[method];RTCPeerConnection.prototype[method]=function(){var args=arguments;if(typeof args[0]==='function'||typeof args[1]==='function'){return nativeMethod.apply(this,[arguments[2]]).then(function(description){if(typeof args[0]==='function'){args[0].apply(null,[description]);}},function(error){if(typeof args[1]==='function'){args[1].apply(null,[error]);}});}
+return nativeMethod.apply(this,arguments);};});methods=['setLocalDescription','setRemoteDescription','addIceCandidate'];methods.forEach(function(method){var nativeMethod=RTCPeerConnection.prototype[method];RTCPeerConnection.prototype[method]=function(){var args=arguments;if(typeof args[1]==='function'||typeof args[2]==='function'){return nativeMethod.apply(this,arguments).then(function(){if(typeof args[1]==='function'){args[1].apply(null);}},function(error){if(typeof args[2]==='function'){args[2].apply(null,[error]);}});}
+return nativeMethod.apply(this,arguments);};});['getStats'].forEach(function(method){var nativeMethod=RTCPeerConnection.prototype[method];RTCPeerConnection.prototype[method]=function(){var args=arguments;if(typeof args[1]==='function'){return nativeMethod.apply(this,arguments).then(function(){if(typeof args[1]==='function'){args[1].apply(null);}});}
+return nativeMethod.apply(this,arguments);};});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);}
@@ -456,17 +463,18 @@ sdp+='a=ssrc:'+transceiver.sendEncodingParameters[0].ssrc+' cname:'+SDPUtils.loc
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';};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
+var logging=utils.log;var browserDetails=utils.detectBrowser(window);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;var adapter={browserDetails:browserDetails,commonShim:commonShim,extractVersion:utils.extractVersion,disableLog:utils.disableLog,disableWarnings:utils.disableWarnings};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);commonShim.shimMaxMessageSize(window);commonShim.shimSendThrowTypeError(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);commonShim.shimMaxMessageSize(window);commonShim.shimSendThrowTypeError(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);commonShim.shimMaxMessageSize(window);commonShim.shimSendThrowTypeError(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);commonShim.shimMaxMessageSize(window);commonShim.shimSendThrowTypeError(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;module.exports={shimGetUserMedia:require('./getusermedia'),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 origSetRemoteDescription.apply(pc,arguments);};}else if(!('RTCRtpTransceiver'in window)){utils.wrapPeerConnectionEvent(window,'track',function(e){if(!e.transceiver){e.transceiver={receiver:e.receiver};}
+return e;});}},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;}}
@@ -474,8 +482,12 @@ return this._dtmf;}});}},shimSourceObject:function(window){var URL=window&&windo
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);});}});}}},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;}
+self.src=URL.createObjectURL(stream);});}});}}},shimAddTrackRemoveTrackWithNative:function(window){window.RTCPeerConnection.prototype.getLocalStreams=function(){var pc=this;this._shimmedLocalStreams=this._shimmedLocalStreams||{};return Object.keys(this._shimmedLocalStreams).map(function(streamId){return pc._shimmedLocalStreams[streamId][0];});};var origAddTrack=window.RTCPeerConnection.prototype.addTrack;window.RTCPeerConnection.prototype.addTrack=function(track,stream){if(!stream){return origAddTrack.apply(this,arguments);}
+this._shimmedLocalStreams=this._shimmedLocalStreams||{};var sender=origAddTrack.apply(this,arguments);if(!this._shimmedLocalStreams[stream.id]){this._shimmedLocalStreams[stream.id]=[stream,sender];}else if(this._shimmedLocalStreams[stream.id].indexOf(sender)===-1){this._shimmedLocalStreams[stream.id].push(sender);}
+return sender;};var origAddStream=window.RTCPeerConnection.prototype.addStream;window.RTCPeerConnection.prototype.addStream=function(stream){var pc=this;this._shimmedLocalStreams=this._shimmedLocalStreams||{};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');}});var existingSenders=pc.getSenders();origAddStream.apply(this,arguments);var newSenders=pc.getSenders().filter(function(newSender){return existingSenders.indexOf(newSender)===-1;});this._shimmedLocalStreams[stream.id]=[stream].concat(newSenders);};var origRemoveStream=window.RTCPeerConnection.prototype.removeStream;window.RTCPeerConnection.prototype.removeStream=function(stream){this._shimmedLocalStreams=this._shimmedLocalStreams||{};delete this._shimmedLocalStreams[stream.id];return origRemoveStream.apply(this,arguments);};var origRemoveTrack=window.RTCPeerConnection.prototype.removeTrack;window.RTCPeerConnection.prototype.removeTrack=function(sender){var pc=this;this._shimmedLocalStreams=this._shimmedLocalStreams||{};if(sender){Object.keys(this._shimmedLocalStreams).forEach(function(streamId){var idx=pc._shimmedLocalStreams[streamId].indexOf(sender);if(idx!==-1){pc._shimmedLocalStreams[streamId].splice(idx,1);}
+if(pc._shimmedLocalStreams[streamId].length===1){delete pc._shimmedLocalStreams[streamId];}});}
+return origRemoveTrack.apply(this,arguments);};},shimAddTrackRemoveTrack:function(window){var browserDetails=utils.detectBrowser(window);if(window.RTCPeerConnection.prototype.addTrack&&browserDetails.version>=65){return this.shimAddTrackRemoveTrackWithNative(window);}
+var origGetLocalStreams=window.RTCPeerConnection.prototype.getLocalStreams;window.RTCPeerConnection.prototype.getLocalStreams=function(){var pc=this;var nativeStreams=origGetLocalStreams.apply(this);pc._reverseStreams=pc._reverseStreams||{};return nativeStreams.map(function(stream){return pc._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');}
@@ -489,20 +501,20 @@ return replaceInternalStreamId(pc,description);}});window.RTCPeerConnection.prot
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;}
+pc.dispatchEvent(new Event('negotiationneeded'));}};},shimPeerConnection:function(window){var browserDetails=utils.detectBrowser(window);if(!window.RTCPeerConnection&&window.webkitRTCPeerConnection){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);}
+var origGetStats=window.RTCPeerConnection.prototype.getStats;window.RTCPeerConnection.prototype.getStats=function(selector,successCallback,errorCallback){var pc=this;var args=arguments;if(arguments.length>0&&typeof selector==='function'){return origGetStats.apply(this,arguments);}
if(origGetStats.length===0&&(arguments.length===0||typeof arguments[0]!=='function')){return origGetStats.apply(this,[]);}
var fixChromeStats_=function(response){var standardReport={};var reports=response.result();reports.forEach(function(report){var standardStats={id:report.id,timestamp:report.timestamp,type:{localcandidate:'local-candidate',remotecandidate:'remote-candidate'}[report.type]||report.type};report.names().forEach(function(name){standardStats[name]=report.stat(name);});standardReport[standardStats.id]=standardStats;});return standardReport;};var makeMapStats=function(stats){return new Map(Object.keys(stats).map(function(key){return[key,stats[key]];}));};if(arguments.length>=2){var successCallbackWrapper_=function(response){args[1](makeMapStats(fixChromeStats_(response)));};return origGetStats.apply(this,[successCallbackWrapper_,arguments[0]]);}
-return new Promise(function(resolve,reject){origGetStats.apply(self,[function(response){resolve(makeMapStats(fixChromeStats_(response)));},reject]);}).then(successCallback,errorCallback);};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 new Promise(function(resolve,reject){origGetStats.apply(pc,[function(response){resolve(makeMapStats(fixChromeStats_(response)));},reject]);}).then(successCallback,errorCallback);};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 pc=this;var promise=new Promise(function(resolve,reject){nativeMethod.apply(pc,[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]);}});};});}
-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]);});}
+if(browserDetails.version<52){['createOffer','createAnswer'].forEach(function(method){var nativeMethod=window.RTCPeerConnection.prototype[method];window.RTCPeerConnection.prototype[method]=function(){var pc=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(pc,[resolve,reject,opts]);});}
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,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;}
+return nativeAddIceCandidate.apply(this,arguments);};}};},{"../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);}
@@ -519,24 +531,29 @@ logging('chrome: '+JSON.stringify(constraints));return func(constraints);};var s
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":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
+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');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'});}
+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;};utils.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;};}
+return nativeSetAttribute.apply(this,arguments);};},shimMaxMessageSize:function(window){if(window.RTCSctpTransport||!window.RTCPeerConnection){return;}
+var browserDetails=utils.detectBrowser(window);if(!('sctp'in window.RTCPeerConnection.prototype)){Object.defineProperty(window.RTCPeerConnection.prototype,'sctp',{get:function(){return typeof this._sctp==='undefined'?null:this._sctp;}});}
+var sctpInDescription=function(description){var sections=SDPUtils.splitSections(description.sdp);sections.shift();return sections.some(function(mediaSection){var mLine=SDPUtils.parseMLine(mediaSection);return mLine&&mLine.kind==='application'&&mLine.protocol.indexOf('SCTP')!==-1;});};var getRemoteFirefoxVersion=function(description){var match=description.sdp.match(/mozilla...THIS_IS_SDPARTA-(\d+)/);if(match===null||match.length<2){return-1;}
+var version=parseInt(match[1],10);return version!==version?-1:version;};var getCanSendMaxMessageSize=function(remoteIsFirefox){var canSendMaxMessageSize=65536;if(browserDetails.browser==='firefox'){if(browserDetails.version<57){if(remoteIsFirefox===-1){canSendMaxMessageSize=16384;}else{canSendMaxMessageSize=2147483637;}}else{canSendMaxMessageSize=browserDetails.version===57?65535:65536;}}
+return canSendMaxMessageSize;};var getMaxMessageSize=function(description,remoteIsFirefox){var maxMessageSize=65536;if(browserDetails.browser==='firefox'&&browserDetails.version===57){maxMessageSize=65535;}
+var match=SDPUtils.matchPrefix(description.sdp,'a=max-message-size:');if(match.length>0){maxMessageSize=parseInt(match[0].substr(19),10);}else if(browserDetails.browser==='firefox'&&remoteIsFirefox!==-1){maxMessageSize=2147483637;}
+return maxMessageSize;};var origSetRemoteDescription=window.RTCPeerConnection.prototype.setRemoteDescription;window.RTCPeerConnection.prototype.setRemoteDescription=function(){var pc=this;pc._sctp=null;if(sctpInDescription(arguments[0])){var isFirefox=getRemoteFirefoxVersion(arguments[0]);var canSendMMS=getCanSendMaxMessageSize(isFirefox);var remoteMMS=getMaxMessageSize(arguments[0],isFirefox);var maxMessageSize;if(canSendMMS===0&&remoteMMS===0){maxMessageSize=Number.POSITIVE_INFINITY;}else if(canSendMMS===0||remoteMMS===0){maxMessageSize=Math.max(canSendMMS,remoteMMS);}else{maxMessageSize=Math.min(canSendMMS,remoteMMS);}
+var sctp={};Object.defineProperty(sctp,'maxMessageSize',{get:function(){return maxMessageSize;}});pc._sctp=sctp;}
+return origSetRemoteDescription.apply(pc,arguments);};},shimSendThrowTypeError:function(window){var origCreateDataChannel=window.RTCPeerConnection.prototype.createDataChannel;window.RTCPeerConnection.prototype.createDataChannel=function(){var pc=this;var dataChannel=origCreateDataChannel.apply(pc,arguments);var origDataChannelSend=dataChannel.send;dataChannel.send=function(){var dc=this;var data=arguments[0];var length=data.length||data.size||data.byteLength;if(length>pc.sctp.maxMessageSize){throw new DOMException('Message too large (can send a maximum of '+
+pc.sctp.maxMessageSize+' bytes)','TypeError');}
+return origDataChannelSend.apply(dc,arguments);};return dataChannel;};}};},{"./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);}});}}
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=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');module.exports={shimGetUserMedia:require('./getusermedia'),shimOnTrack:function(window){if(typeof window==='object'&&window.RTCPeerConnection&&!('ontrack'in
window.RTCPeerConnection.prototype)){Object.defineProperty(window.RTCPeerConnection.prototype,'ontrack',{get:function(){return this._ontrack;},set:function(f){if(this._ontrack){this.removeEventListener('track',this._ontrack);this.removeEventListener('addstream',this._ontrackpoly);}
this.addEventListener('track',this._ontrack=f);this.addEventListener('addstream',this._ontrackpoly=function(e){e.stream.getTracks().forEach(function(track){var event=new Event('track');event.track=track;event.receiver={track:track};event.transceiver={receiver:event.receiver};event.streams=[e.stream];this.dispatchEvent(event);}.bind(this));}.bind(this));}});}
if(typeof window==='object'&&window.RTCTrackEvent&&('receiver'in window.RTCTrackEvent.prototype)&&!('transceiver'in window.RTCTrackEvent.prototype)){Object.defineProperty(window.RTCTrackEvent.prototype,'transceiver',{get:function(){return{receiver:this.receiver};}});}},shimSourceObject:function(window){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;}
@@ -551,7 +568,7 @@ return nativeAddIceCandidate.apply(this,arguments);};var makeMapStats=function(s
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);};},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;}
+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);}});};}};},{"../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;}
@@ -571,7 +588,7 @@ return nativeGetUserMedia(c);};if(MediaStreamTrack&&MediaStreamTrack.prototype.g
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);}
-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;}
+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');module.exports={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;}});}
@@ -579,16 +596,16 @@ if(this._remoteStreams){this._remoteStreams.forEach(function(stream){if(stream.i
return result;};}
if(!('addStream'in window.RTCPeerConnection.prototype)){var _addTrack=window.RTCPeerConnection.prototype.addTrack;window.RTCPeerConnection.prototype.addStream=function(stream){if(!this._localStreams){this._localStreams=[];}
if(this._localStreams.indexOf(stream)===-1){this._localStreams.push(stream);}
-var self=this;stream.getTracks().forEach(function(track){_addTrack.call(self,track,stream);});};window.RTCPeerConnection.prototype.addTrack=function(track,stream){if(stream){if(!this._localStreams){this._localStreams=[stream];}else if(this._localStreams.indexOf(stream)===-1){this._localStreams.push(stream);}}
+var pc=this;stream.getTracks().forEach(function(track){_addTrack.call(pc,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);}}
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;}
+this._localStreams.splice(index,1);var pc=this;var tracks=stream.getTracks();this.getSenders().forEach(function(sender){if(tracks.indexOf(sender.track)!==-1){pc.removeTrack(sender);}});};}},shimRemoteStreamsAPI:function(window){if(typeof window!=='object'||!window.RTCPeerConnection){return;}
if(!('getRemoteStreams'in window.RTCPeerConnection.prototype)){window.RTCPeerConnection.prototype.getRemoteStreams=function(){return this._remoteStreams?this._remoteStreams:[];};}
-if(!('onaddstream'in window.RTCPeerConnection.prototype)){Object.defineProperty(window.RTCPeerConnection.prototype,'onaddstream',{get:function(){return this._onaddstream;},set:function(f){if(this._onaddstream){this.removeEventListener('addstream',this._onaddstream);this.removeEventListener('track',this._onaddstreampoly);}
-this.addEventListener('addstream',this._onaddstream=f);this.addEventListener('track',this._onaddstreampoly=function(e){var stream=e.streams[0];if(!this._remoteStreams){this._remoteStreams=[];}
-if(this._remoteStreams.indexOf(stream)>=0){return;}
-this._remoteStreams.push(stream);var event=new Event('addstream');event.stream=e.streams[0];this.dispatchEvent(event);}.bind(this));}});}},shimCallbacksAPI:function(window){if(typeof window!=='object'||!window.RTCPeerConnection){return;}
+if(!('onaddstream'in window.RTCPeerConnection.prototype)){Object.defineProperty(window.RTCPeerConnection.prototype,'onaddstream',{get:function(){return this._onaddstream;},set:function(f){var pc=this;if(this._onaddstream){this.removeEventListener('addstream',this._onaddstream);this.removeEventListener('track',this._onaddstreampoly);}
+this.addEventListener('addstream',this._onaddstream=f);this.addEventListener('track',this._onaddstreampoly=function(e){e.streams.forEach(function(stream){if(!pc._remoteStreams){pc._remoteStreams=[];}
+if(pc._remoteStreams.indexOf(stream)>=0){return;}
+pc._remoteStreams.push(stream);var event=new Event('addstream');event.stream=stream;pc.dispatchEvent(event);});});}});}},shimCallbacksAPI:function(window){if(typeof window!=='object'||!window.RTCPeerConnection){return;}
var prototype=window.RTCPeerConnection.prototype;var createOffer=prototype.createOffer;var createAnswer=prototype.createAnswer;var setLocalDescription=prototype.setLocalDescription;var setRemoteDescription=prototype.setRemoteDescription;var addIceCandidate=prototype.addIceCandidate;prototype.createOffer=function(successCallback,failureCallback){var options=(arguments.length>=2)?arguments[2]:arguments[0];var promise=createOffer.apply(this,[options]);if(!failureCallback){return promise;}
promise.then(successCallback,failureCallback);return Promise.resolve();};prototype.createAnswer=function(successCallback,failureCallback){var options=(arguments.length>=2)?arguments[2]:arguments[0];var promise=createAnswer.apply(this,[options]);if(!failureCallback){return promise;}
promise.then(successCallback,failureCallback);return Promise.resolve();};var withCallback=function(description,successCallback,failureCallback){var promise=setLocalDescription.apply(this,[description]);if(!failureCallback){return promise;}
@@ -596,12 +613,18 @@ promise.then(successCallback,failureCallback);return Promise.resolve();};prototy
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;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');}
+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'){if(audioTransceiver.setDirection){audioTransceiver.setDirection('sendonly');}else{audioTransceiver.direction='sendonly';}}else if(audioTransceiver.direction==='recvonly'){if(audioTransceiver.setDirection){audioTransceiver.setDirection('inactive');}else{audioTransceiver.direction='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.');}
+return origCreateOffer.apply(pc,arguments);};}};},{"../utils":13}],13:[function(require,module,exports){'use strict';var logDisabled_=true;var deprecationWarnings_=true;function extractVersion(uastring,expr,pos){var match=uastring.match(expr);return match&&match.length>=pos&&parseInt(match[pos],10);}
+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={extractVersion:extractVersion,wrapPeerConnectionEvent:wrapPeerConnectionEvent,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+)$/,2);}else if(navigator.mediaDevices&&navigator.userAgent.match(/AppleWebKit\/(\d+)\./)){result.browser='safari';result.version=this.extractVersion(navigator.userAgent,/AppleWebKit\/(\d+)\./,1);}else{result.browser='Not a supported browser.';return result;}
-return result;},};module.exports={log:utils.log,deprecated:utils.deprecated,disableLog:utils.disableLog,disableWarnings:utils.disableWarnings,extractVersion:utils.extractVersion,shimCreateObjectURL:utils.shimCreateObjectURL,detectBrowser:utils.detectBrowser.bind(utils)};},{}]},{},[3])(3)});
\ No newline at end of file
+console.warn(oldMethod+' is deprecated, please use '+newMethod+' instead.');},detectBrowser:function(window){var navigator=window&&window.navigator;var result={};result.browser=null;result.version=null;if(typeof window==='undefined'||!window.navigator){result.browser='Not a browser.';return result;}
+if(navigator.mozGetUserMedia){result.browser='firefox';result.version=extractVersion(navigator.userAgent,/Firefox\/(\d+)\./,1);}else if(navigator.webkitGetUserMedia){result.browser='chrome';result.version=extractVersion(navigator.userAgent,/Chrom(e|ium)\/(\d+)\./,2);}else if(navigator.mediaDevices&&navigator.userAgent.match(/Edge\/(\d+).(\d+)$/)){result.browser='edge';result.version=extractVersion(navigator.userAgent,/Edge\/(\d+).(\d+)$/,2);}else if(navigator.mediaDevices&&navigator.userAgent.match(/AppleWebKit\/(\d+)\./)){result.browser='safari';result.version=extractVersion(navigator.userAgent,/AppleWebKit\/(\d+)\./,1);}else{result.browser='Not a supported browser.';return result;}
+return result;}};},{}]},{},[3])(3)});
\ No newline at end of file
diff --git a/html5/verto/video_demo/js/verto-min.js b/html5/verto/video_demo/js/verto-min.js
index fdf5432fa5..78f8bc450e 100644
--- a/html5/verto/video_demo/js/verto-min.js
+++ b/html5/verto/video_demo/js/verto-min.js
@@ -307,7 +307,7 @@ navigator.getUserMedia({audio:(has_audio>0?true:false),video:(has_video>0?true:f
navigator.mediaDevices.enumerateDevices().then(checkTypes).catch(handleError);};$.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=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';}
+$.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.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+' '+
@@ -317,109 +317,116 @@ 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;});}
+return url.indexOf('stun:')===0&&edgeVersion>=14393&&url.indexOf('?transport=udp')===-1;});delete server.url;server.urls=isString?urls[0]:urls;return!!urls.length;}});}
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';}
+function addTrackToStreamAndFireEvent(track,stream){stream.addTrack(track);var e=new Event('addtrack');e.track=track;stream.dispatchEvent(e);}
+function removeTrackFromStreamAndFireEvent(track,stream){stream.removeTrack(track);var e=new Event('removetrack');e.track=track;stream.dispatchEvent(e);}
+function fireAddTrack(pc,track,receiver,streams){var trackEvent=new Event('track');trackEvent.track=track;trackEvent.receiver=receiver;trackEvent.transceiver={receiver:receiver};trackEvent.streams=streams;window.setTimeout(function(){pc._dispatchEvent('track',trackEvent);});}
+function makeError(name,description){var e=new Error(description);e.name=name;return e;}
+module.exports=function(window,edgeVersion){var RTCPeerConnection=function(config){var pc=this;var _eventTarget=document.createDocumentFragment();['addEventListener','removeEventListener','dispatchEvent'].forEach(function(method){pc[method]=_eventTarget[method].bind(_eventTarget);});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'){throw(makeError('NotSupportedError','rtcpMuxPolicy \'negotiate\' is not supported'));}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];}}
+this._config=config;this.transceivers=[];this._sdpSessionId=SDPUtils.generateSessionId();this._sdpSessionVersion=0;this._dtlsRole=undefined;this._isClosed=false;};RTCPeerConnection.prototype.onicecandidate=null;RTCPeerConnection.prototype.onaddstream=null;RTCPeerConnection.prototype.ontrack=null;RTCPeerConnection.prototype.onremovestream=null;RTCPeerConnection.prototype.onsignalingstatechange=null;RTCPeerConnection.prototype.oniceconnectionstatechange=null;RTCPeerConnection.prototype.onicegatheringstatechange=null;RTCPeerConnection.prototype.onnegotiationneeded=null;RTCPeerConnection.prototype.ondatachannel=null;RTCPeerConnection.prototype._dispatchEvent=function(name,event){if(this._isClosed){return;}
+this.dispatchEvent(event);if(typeof this['on'+name]==='function'){this['on'+name](event);}};RTCPeerConnection.prototype._emitGatheringStateChange=function(){var event=new Event('icegatheringstatechange');this._dispatchEvent('icegatheringstatechange',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,associatedRemoteMediaStreams:[],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 alreadyExists=this.transceivers.find(function(s){return s.track===track;});if(alreadyExists){throw makeError('InvalidAccessError','Track already exists.');}
+if(this.signalingState==='closed'){throw makeError('InvalidStateError','Attempted to call addTrack on a closed peerconnection.');}
+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;}
+transceiver.track=track;transceiver.stream=stream;transceiver.rtpSender=new window.RTCRtpSender(track,transceiver.dtlsTransport);return transceiver.rtpSender;};RTCPeerConnection.prototype.addStream=function(stream){var pc=this;if(edgeVersion>=15025){stream.getTracks().forEach(function(track){pc.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){pc.addTrack(track,clonedStream);});}};RTCPeerConnection.prototype.removeTrack=function(sender){if(!(sender instanceof window.RTCRtpSender)){throw new TypeError('Argument 1 of RTCPeerConnection.removeTrack '+'does not implement interface RTCRtpSender.');}
+var transceiver=this.transceivers.find(function(t){return t.rtpSender===sender;});if(!transceiver){throw makeError('InvalidAccessError','Sender was not created by this connection.');}
+var stream=transceiver.stream;transceiver.rtpSender.stop();transceiver.rtpSender=null;transceiver.track=null;transceiver.stream=null;var localStreams=this.transceivers.map(function(t){return t.stream;});if(localStreams.indexOf(stream)===-1&&this.localStreams.indexOf(stream)>-1){this.localStreams.splice(this.localStreams.indexOf(stream),1);}
+this._maybeFireNegotiationNeeded();};RTCPeerConnection.prototype.removeStream=function(stream){var pc=this;stream.getTracks().forEach(function(track){var sender=pc.getSenders().find(function(s){return s.track===track;});if(sender){pc.removeTrack(sender);}});};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 pc=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(pc.transceivers[sdpMLineIndex].candidates!==null){pc.transceivers[sdpMLineIndex].candidates.push(event.candidate);}};iceGatherer.addEventListener('localcandidate',this.transceivers[sdpMLineIndex].bufferCandidates);return iceGatherer;};RTCPeerConnection.prototype._gather=function(mid,sdpMLineIndex){var pc=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(pc.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 sections=SDPUtils.splitSections(pc.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';}
+pc.localDescription.sdp=sections.join('');var complete=pc.transceivers.every(function(transceiver){return transceiver.iceGatherer&&transceiver.iceGatherer.state==='completed';});if(pc.iceGatheringState!=='gathering'){pc.iceGatheringState='gathering';pc._emitGatheringStateChange();}
+if(!end){pc._dispatchEvent('icecandidate',event);}
+if(complete){pc._dispatchEvent('icecandidate',new Event('icecandidate'));pc.iceGatheringState='complete';pc._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 pc=this;var iceTransport=new window.RTCIceTransport(null);iceTransport.onicestatechange=function(){pc._updateConnectionState();};var dtlsTransport=new window.RTCDtlsTransport(iceTransport);dtlsTransport.ondtlsstatechange=function(){pc._updateConnectionState();};dtlsTransport.onerror=function(){Object.defineProperty(dtlsTransport,'state',{value:'failed',writable:true});pc._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(transceiver.recvEncodingParameters.length){params.encodings=transceiver.recvEncodingParameters;}
+params.rtcp={compound:transceiver.rtcpParameters.compound};if(transceiver.rtcpParameters.cname){params.rtcp.cname=transceiver.rtcpParameters.cname;}
+if(transceiver.sendEncodingParameters.length){params.rtcp.ssrc=transceiver.sendEncodingParameters[0].ssrc;}
+transceiver.rtpReceiver.receive(params);}};RTCPeerConnection.prototype.setLocalDescription=function(description){var pc=this;if(!isActionAllowedInSignalingState('setLocalDescription',description.type,this.signalingState)||this._isClosed){return Promise.reject(makeError('InvalidStateError','Can not set local '+description.type+' in state '+pc.signalingState));}
+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);pc.transceivers[sdpMLineIndex].localCapabilities=caps;});this.transceivers.forEach(function(transceiver,sdpMLineIndex){pc._gather(transceiver.mid,sdpMLineIndex);});}else if(description.type==='answer'){sections=SDPUtils.splitSections(pc.remoteDescription.sdp);sessionpart=sections.shift();var isIceLite=SDPUtils.matchPrefix(sessionpart,'a=ice-lite').length>0;sections.forEach(function(mediaSection,sdpMLineIndex){var transceiver=pc.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===0;if(!rejected&&!transceiver.isDatachannel){var remoteIceParameters=SDPUtils.getIceParameters(mediaSection,sessionpart);var remoteDtlsParameters=SDPUtils.getDtlsParameters(mediaSection,sessionpart);if(isIceLite){remoteDtlsParameters.role='server';}
+if(!pc.usingBundle||sdpMLineIndex===0){pc._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);}});}
+var params=getCommonCapabilities(localCapabilities,remoteCapabilities);pc._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);});}
+return Promise.resolve();};RTCPeerConnection.prototype.setRemoteDescription=function(description){var pc=this;if(!isActionAllowedInSignalingState('setRemoteDescription',description.type,this.signalingState)||this._isClosed){return Promise.reject(makeError('InvalidStateError','Can not set remote '+description.type+' in state '+pc.signalingState));}
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;}
+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===0;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'){pc.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);}
+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&&pc.transceivers[sdpMLineIndex]){pc._disposeIceAndDtlsTransports(sdpMLineIndex);pc.transceivers[sdpMLineIndex].iceGatherer=pc.transceivers[0].iceGatherer;pc.transceivers[sdpMLineIndex].iceTransport=pc.transceivers[0].iceTransport;pc.transceivers[sdpMLineIndex].dtlsTransport=pc.transceivers[0].dtlsTransport;if(pc.transceivers[sdpMLineIndex].rtpSender){pc.transceivers[sdpMLineIndex].rtpSender.setTransport(pc.transceivers[0].dtlsTransport);}
+if(pc.transceivers[sdpMLineIndex].rtpReceiver){pc.transceivers[sdpMLineIndex].rtpReceiver.setTransport(pc.transceivers[0].dtlsTransport);}}
+if(description.type==='offer'&&!rejected){transceiver=pc.transceivers[sdpMLineIndex]||pc._createTransceiver(kind);transceiver.mid=mid;if(!transceiver.iceGatherer){transceiver.iceGatherer=pc._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;}});}
+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&&remoteMsid.stream==='-'){}else 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(stream){addTrackToStreamAndFireEvent(track,stream);transceiver.associatedRemoteMediaStreams.push(stream);}
+receiverList.push([track,rtpReceiver,stream]);}}else if(transceiver.rtpReceiver&&transceiver.rtpReceiver.track){transceiver.associatedRemoteMediaStreams.forEach(function(s){var nativeTrack=s.getTracks().find(function(t){return t.id===transceiver.rtpReceiver.track.id;});if(nativeTrack){removeTrackFromStreamAndFireEvent(nativeTrack,s);}});transceiver.associatedRemoteMediaStreams=[];}
+transceiver.localCapabilities=localCapabilities;transceiver.remoteCapabilities=remoteCapabilities;transceiver.rtpReceiver=rtpReceiver;transceiver.rtcpParameters=rtcpParameters;transceiver.sendEncodingParameters=sendEncodingParameters;transceiver.recvEncodingParameters=recvEncodingParameters;pc._transceive(pc.transceivers[sdpMLineIndex],false,isNewTrack);}else if(description.type==='answer'&&!rejected){transceiver=pc.transceivers[sdpMLineIndex];iceGatherer=transceiver.iceGatherer;iceTransport=transceiver.iceTransport;dtlsTransport=transceiver.dtlsTransport;rtpReceiver=transceiver.rtpReceiver;sendEncodingParameters=transceiver.sendEncodingParameters;localCapabilities=transceiver.localCapabilities;pc.transceivers[sdpMLineIndex].recvEncodingParameters=recvEncodingParameters;pc.transceivers[sdpMLineIndex].remoteCapabilities=remoteCapabilities;pc.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';}
+pc._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();}
+addTrackToStreamAndFireEvent(track,streams[remoteMsid.stream]);receiverList.push([track,rtpReceiver,streams[remoteMsid.stream]]);}else{if(!streams.default){streams.default=new window.MediaStream();}
+addTrackToStreamAndFireEvent(track,streams.default);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);}});}
+Object.keys(streams).forEach(function(sid){var stream=streams[sid];if(stream.getTracks().length){if(pc.remoteStreams.indexOf(stream)===-1){pc.remoteStreams.push(stream);var event=new Event('addstream');event.stream=stream;window.setTimeout(function(){pc._dispatchEvent('addstream',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();}
+fireAddTrack(pc,track,receiver,[stream]);});}});receiverList.forEach(function(item){if(item[2]){return;}
+fireAddTrack(pc,item[0],item[1],[]);});window.setTimeout(function(){if(!(pc&&pc.transceivers)){return;}
+pc.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 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(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(transceiver.rtpReceiver){transceiver.rtpReceiver.stop();}});this._isClosed=true;this._updateSignalingState('closed');};RTCPeerConnection.prototype._updateSignalingState=function(newState){this.signalingState=newState;var event=new Event('signalingstatechange');this._dispatchEvent('signalingstatechange',event);};RTCPeerConnection.prototype._maybeFireNegotiationNeeded=function(){var pc=this;if(this.signalingState!=='stable'||this.needNegotiation===true){return;}
+this.needNegotiation=true;window.setTimeout(function(){if(pc.needNegotiation===false){return;}
+pc.needNegotiation=false;var event=new Event('negotiationneeded');pc._dispatchEvent('negotiationneeded',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('iceconnectionstatechange',event);}};RTCPeerConnection.prototype.createOffer=function(){var pc=this;if(this._isClosed){return Promise.reject(makeError('InvalidStateError','Can not call createOffer after close'));}
+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 offerOptions=arguments[0];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 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=pc._createIceGatherer(sdpMLineIndex,pc.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';}
+sdp+='a=ice-options:trickle\r\n';this.transceivers.forEach(function(transceiver,sdpMLineIndex){sdp+=writeMediaSection(transceiver,transceiver.localCapabilities,'offer',transceiver.stream,pc._dtlsRole);sdp+='a=rtcp-rsize\r\n';if(transceiver.iceGatherer&&pc.iceGatheringState!=='new'&&(sdpMLineIndex===0||!pc.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 Promise.resolve(desc);};RTCPeerConnection.prototype.createAnswer=function(){var pc=this;if(this._isClosed){return Promise.reject(makeError('InvalidStateError','Can not call createAnswer after close'));}
+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;}}}
+sdp+=writeMediaSection(transceiver,commonCapabilities,'answer',transceiver.stream,pc._dtlsRole);if(transceiver.rtcpParameters&&transceiver.rtcpParameters.reducedSize){sdp+='a=rtcp-rsize\r\n';}});var desc=new window.RTCSessionDescription({type:'answer',sdp:sdp});return Promise.resolve(desc);};RTCPeerConnection.prototype.addIceCandidate=function(candidate){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){return Promise.reject(makeError('InvalidStateError','Can not add ICE candidate without a remote description'));}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);}
+if(sdpMLineIndex===0||(sdpMLineIndex>0&&transceiver.iceTransport!==this.transceivers[0].iceTransport)){if(!maybeAddCandidate(transceiver.iceTransport,cand)){return Promise.reject(makeError('OperationError','Can not add ICE candidate'));}}
+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(' ');}
++'\r\n';this.remoteDescription.sdp=sections.join('');}else{return Promise.reject(makeError('OperationError','Can not add ICE candidate'));}}
+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 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]);});});resolve(results);});});};var methods=['createOffer','createAnswer'];methods.forEach(function(method){var nativeMethod=RTCPeerConnection.prototype[method];RTCPeerConnection.prototype[method]=function(){var args=arguments;if(typeof args[0]==='function'||typeof args[1]==='function'){return nativeMethod.apply(this,[arguments[2]]).then(function(description){if(typeof args[0]==='function'){args[0].apply(null,[description]);}},function(error){if(typeof args[1]==='function'){args[1].apply(null,[error]);}});}
+return nativeMethod.apply(this,arguments);};});methods=['setLocalDescription','setRemoteDescription','addIceCandidate'];methods.forEach(function(method){var nativeMethod=RTCPeerConnection.prototype[method];RTCPeerConnection.prototype[method]=function(){var args=arguments;if(typeof args[1]==='function'||typeof args[2]==='function'){return nativeMethod.apply(this,arguments).then(function(){if(typeof args[1]==='function'){args[1].apply(null);}},function(error){if(typeof args[2]==='function'){args[2].apply(null,[error]);}});}
+return nativeMethod.apply(this,arguments);};});['getStats'].forEach(function(method){var nativeMethod=RTCPeerConnection.prototype[method];RTCPeerConnection.prototype[method]=function(){var args=arguments;if(typeof args[1]==='function'){return nativeMethod.apply(this,arguments).then(function(){if(typeof args[1]==='function'){args[1].apply(null);}});}
+return nativeMethod.apply(this,arguments);};});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);}
@@ -456,17 +463,18 @@ sdp+='a=ssrc:'+transceiver.sendEncodingParameters[0].ssrc+' cname:'+SDPUtils.loc
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';};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
+var logging=utils.log;var browserDetails=utils.detectBrowser(window);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;var adapter={browserDetails:browserDetails,commonShim:commonShim,extractVersion:utils.extractVersion,disableLog:utils.disableLog,disableWarnings:utils.disableWarnings};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);commonShim.shimMaxMessageSize(window);commonShim.shimSendThrowTypeError(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);commonShim.shimMaxMessageSize(window);commonShim.shimSendThrowTypeError(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);commonShim.shimMaxMessageSize(window);commonShim.shimSendThrowTypeError(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);commonShim.shimMaxMessageSize(window);commonShim.shimSendThrowTypeError(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;module.exports={shimGetUserMedia:require('./getusermedia'),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 origSetRemoteDescription.apply(pc,arguments);};}else if(!('RTCRtpTransceiver'in window)){utils.wrapPeerConnectionEvent(window,'track',function(e){if(!e.transceiver){e.transceiver={receiver:e.receiver};}
+return e;});}},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;}}
@@ -474,8 +482,12 @@ return this._dtmf;}});}},shimSourceObject:function(window){var URL=window&&windo
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);});}});}}},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;}
+self.src=URL.createObjectURL(stream);});}});}}},shimAddTrackRemoveTrackWithNative:function(window){window.RTCPeerConnection.prototype.getLocalStreams=function(){var pc=this;this._shimmedLocalStreams=this._shimmedLocalStreams||{};return Object.keys(this._shimmedLocalStreams).map(function(streamId){return pc._shimmedLocalStreams[streamId][0];});};var origAddTrack=window.RTCPeerConnection.prototype.addTrack;window.RTCPeerConnection.prototype.addTrack=function(track,stream){if(!stream){return origAddTrack.apply(this,arguments);}
+this._shimmedLocalStreams=this._shimmedLocalStreams||{};var sender=origAddTrack.apply(this,arguments);if(!this._shimmedLocalStreams[stream.id]){this._shimmedLocalStreams[stream.id]=[stream,sender];}else if(this._shimmedLocalStreams[stream.id].indexOf(sender)===-1){this._shimmedLocalStreams[stream.id].push(sender);}
+return sender;};var origAddStream=window.RTCPeerConnection.prototype.addStream;window.RTCPeerConnection.prototype.addStream=function(stream){var pc=this;this._shimmedLocalStreams=this._shimmedLocalStreams||{};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');}});var existingSenders=pc.getSenders();origAddStream.apply(this,arguments);var newSenders=pc.getSenders().filter(function(newSender){return existingSenders.indexOf(newSender)===-1;});this._shimmedLocalStreams[stream.id]=[stream].concat(newSenders);};var origRemoveStream=window.RTCPeerConnection.prototype.removeStream;window.RTCPeerConnection.prototype.removeStream=function(stream){this._shimmedLocalStreams=this._shimmedLocalStreams||{};delete this._shimmedLocalStreams[stream.id];return origRemoveStream.apply(this,arguments);};var origRemoveTrack=window.RTCPeerConnection.prototype.removeTrack;window.RTCPeerConnection.prototype.removeTrack=function(sender){var pc=this;this._shimmedLocalStreams=this._shimmedLocalStreams||{};if(sender){Object.keys(this._shimmedLocalStreams).forEach(function(streamId){var idx=pc._shimmedLocalStreams[streamId].indexOf(sender);if(idx!==-1){pc._shimmedLocalStreams[streamId].splice(idx,1);}
+if(pc._shimmedLocalStreams[streamId].length===1){delete pc._shimmedLocalStreams[streamId];}});}
+return origRemoveTrack.apply(this,arguments);};},shimAddTrackRemoveTrack:function(window){var browserDetails=utils.detectBrowser(window);if(window.RTCPeerConnection.prototype.addTrack&&browserDetails.version>=65){return this.shimAddTrackRemoveTrackWithNative(window);}
+var origGetLocalStreams=window.RTCPeerConnection.prototype.getLocalStreams;window.RTCPeerConnection.prototype.getLocalStreams=function(){var pc=this;var nativeStreams=origGetLocalStreams.apply(this);pc._reverseStreams=pc._reverseStreams||{};return nativeStreams.map(function(stream){return pc._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');}
@@ -489,20 +501,20 @@ return replaceInternalStreamId(pc,description);}});window.RTCPeerConnection.prot
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;}
+pc.dispatchEvent(new Event('negotiationneeded'));}};},shimPeerConnection:function(window){var browserDetails=utils.detectBrowser(window);if(!window.RTCPeerConnection&&window.webkitRTCPeerConnection){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);}
+var origGetStats=window.RTCPeerConnection.prototype.getStats;window.RTCPeerConnection.prototype.getStats=function(selector,successCallback,errorCallback){var pc=this;var args=arguments;if(arguments.length>0&&typeof selector==='function'){return origGetStats.apply(this,arguments);}
if(origGetStats.length===0&&(arguments.length===0||typeof arguments[0]!=='function')){return origGetStats.apply(this,[]);}
var fixChromeStats_=function(response){var standardReport={};var reports=response.result();reports.forEach(function(report){var standardStats={id:report.id,timestamp:report.timestamp,type:{localcandidate:'local-candidate',remotecandidate:'remote-candidate'}[report.type]||report.type};report.names().forEach(function(name){standardStats[name]=report.stat(name);});standardReport[standardStats.id]=standardStats;});return standardReport;};var makeMapStats=function(stats){return new Map(Object.keys(stats).map(function(key){return[key,stats[key]];}));};if(arguments.length>=2){var successCallbackWrapper_=function(response){args[1](makeMapStats(fixChromeStats_(response)));};return origGetStats.apply(this,[successCallbackWrapper_,arguments[0]]);}
-return new Promise(function(resolve,reject){origGetStats.apply(self,[function(response){resolve(makeMapStats(fixChromeStats_(response)));},reject]);}).then(successCallback,errorCallback);};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 new Promise(function(resolve,reject){origGetStats.apply(pc,[function(response){resolve(makeMapStats(fixChromeStats_(response)));},reject]);}).then(successCallback,errorCallback);};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 pc=this;var promise=new Promise(function(resolve,reject){nativeMethod.apply(pc,[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]);}});};});}
-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]);});}
+if(browserDetails.version<52){['createOffer','createAnswer'].forEach(function(method){var nativeMethod=window.RTCPeerConnection.prototype[method];window.RTCPeerConnection.prototype[method]=function(){var pc=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(pc,[resolve,reject,opts]);});}
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,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;}
+return nativeAddIceCandidate.apply(this,arguments);};}};},{"../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);}
@@ -519,24 +531,29 @@ logging('chrome: '+JSON.stringify(constraints));return func(constraints);};var s
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":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
+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');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'});}
+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;};utils.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;};}
+return nativeSetAttribute.apply(this,arguments);};},shimMaxMessageSize:function(window){if(window.RTCSctpTransport||!window.RTCPeerConnection){return;}
+var browserDetails=utils.detectBrowser(window);if(!('sctp'in window.RTCPeerConnection.prototype)){Object.defineProperty(window.RTCPeerConnection.prototype,'sctp',{get:function(){return typeof this._sctp==='undefined'?null:this._sctp;}});}
+var sctpInDescription=function(description){var sections=SDPUtils.splitSections(description.sdp);sections.shift();return sections.some(function(mediaSection){var mLine=SDPUtils.parseMLine(mediaSection);return mLine&&mLine.kind==='application'&&mLine.protocol.indexOf('SCTP')!==-1;});};var getRemoteFirefoxVersion=function(description){var match=description.sdp.match(/mozilla...THIS_IS_SDPARTA-(\d+)/);if(match===null||match.length<2){return-1;}
+var version=parseInt(match[1],10);return version!==version?-1:version;};var getCanSendMaxMessageSize=function(remoteIsFirefox){var canSendMaxMessageSize=65536;if(browserDetails.browser==='firefox'){if(browserDetails.version<57){if(remoteIsFirefox===-1){canSendMaxMessageSize=16384;}else{canSendMaxMessageSize=2147483637;}}else{canSendMaxMessageSize=browserDetails.version===57?65535:65536;}}
+return canSendMaxMessageSize;};var getMaxMessageSize=function(description,remoteIsFirefox){var maxMessageSize=65536;if(browserDetails.browser==='firefox'&&browserDetails.version===57){maxMessageSize=65535;}
+var match=SDPUtils.matchPrefix(description.sdp,'a=max-message-size:');if(match.length>0){maxMessageSize=parseInt(match[0].substr(19),10);}else if(browserDetails.browser==='firefox'&&remoteIsFirefox!==-1){maxMessageSize=2147483637;}
+return maxMessageSize;};var origSetRemoteDescription=window.RTCPeerConnection.prototype.setRemoteDescription;window.RTCPeerConnection.prototype.setRemoteDescription=function(){var pc=this;pc._sctp=null;if(sctpInDescription(arguments[0])){var isFirefox=getRemoteFirefoxVersion(arguments[0]);var canSendMMS=getCanSendMaxMessageSize(isFirefox);var remoteMMS=getMaxMessageSize(arguments[0],isFirefox);var maxMessageSize;if(canSendMMS===0&&remoteMMS===0){maxMessageSize=Number.POSITIVE_INFINITY;}else if(canSendMMS===0||remoteMMS===0){maxMessageSize=Math.max(canSendMMS,remoteMMS);}else{maxMessageSize=Math.min(canSendMMS,remoteMMS);}
+var sctp={};Object.defineProperty(sctp,'maxMessageSize',{get:function(){return maxMessageSize;}});pc._sctp=sctp;}
+return origSetRemoteDescription.apply(pc,arguments);};},shimSendThrowTypeError:function(window){var origCreateDataChannel=window.RTCPeerConnection.prototype.createDataChannel;window.RTCPeerConnection.prototype.createDataChannel=function(){var pc=this;var dataChannel=origCreateDataChannel.apply(pc,arguments);var origDataChannelSend=dataChannel.send;dataChannel.send=function(){var dc=this;var data=arguments[0];var length=data.length||data.size||data.byteLength;if(length>pc.sctp.maxMessageSize){throw new DOMException('Message too large (can send a maximum of '+
+pc.sctp.maxMessageSize+' bytes)','TypeError');}
+return origDataChannelSend.apply(dc,arguments);};return dataChannel;};}};},{"./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);}});}}
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=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');module.exports={shimGetUserMedia:require('./getusermedia'),shimOnTrack:function(window){if(typeof window==='object'&&window.RTCPeerConnection&&!('ontrack'in
window.RTCPeerConnection.prototype)){Object.defineProperty(window.RTCPeerConnection.prototype,'ontrack',{get:function(){return this._ontrack;},set:function(f){if(this._ontrack){this.removeEventListener('track',this._ontrack);this.removeEventListener('addstream',this._ontrackpoly);}
this.addEventListener('track',this._ontrack=f);this.addEventListener('addstream',this._ontrackpoly=function(e){e.stream.getTracks().forEach(function(track){var event=new Event('track');event.track=track;event.receiver={track:track};event.transceiver={receiver:event.receiver};event.streams=[e.stream];this.dispatchEvent(event);}.bind(this));}.bind(this));}});}
if(typeof window==='object'&&window.RTCTrackEvent&&('receiver'in window.RTCTrackEvent.prototype)&&!('transceiver'in window.RTCTrackEvent.prototype)){Object.defineProperty(window.RTCTrackEvent.prototype,'transceiver',{get:function(){return{receiver:this.receiver};}});}},shimSourceObject:function(window){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;}
@@ -551,7 +568,7 @@ return nativeAddIceCandidate.apply(this,arguments);};var makeMapStats=function(s
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);};},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;}
+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);}});};}};},{"../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;}
@@ -571,7 +588,7 @@ return nativeGetUserMedia(c);};if(MediaStreamTrack&&MediaStreamTrack.prototype.g
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);}
-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;}
+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');module.exports={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;}});}
@@ -579,16 +596,16 @@ if(this._remoteStreams){this._remoteStreams.forEach(function(stream){if(stream.i
return result;};}
if(!('addStream'in window.RTCPeerConnection.prototype)){var _addTrack=window.RTCPeerConnection.prototype.addTrack;window.RTCPeerConnection.prototype.addStream=function(stream){if(!this._localStreams){this._localStreams=[];}
if(this._localStreams.indexOf(stream)===-1){this._localStreams.push(stream);}
-var self=this;stream.getTracks().forEach(function(track){_addTrack.call(self,track,stream);});};window.RTCPeerConnection.prototype.addTrack=function(track,stream){if(stream){if(!this._localStreams){this._localStreams=[stream];}else if(this._localStreams.indexOf(stream)===-1){this._localStreams.push(stream);}}
+var pc=this;stream.getTracks().forEach(function(track){_addTrack.call(pc,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);}}
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;}
+this._localStreams.splice(index,1);var pc=this;var tracks=stream.getTracks();this.getSenders().forEach(function(sender){if(tracks.indexOf(sender.track)!==-1){pc.removeTrack(sender);}});};}},shimRemoteStreamsAPI:function(window){if(typeof window!=='object'||!window.RTCPeerConnection){return;}
if(!('getRemoteStreams'in window.RTCPeerConnection.prototype)){window.RTCPeerConnection.prototype.getRemoteStreams=function(){return this._remoteStreams?this._remoteStreams:[];};}
-if(!('onaddstream'in window.RTCPeerConnection.prototype)){Object.defineProperty(window.RTCPeerConnection.prototype,'onaddstream',{get:function(){return this._onaddstream;},set:function(f){if(this._onaddstream){this.removeEventListener('addstream',this._onaddstream);this.removeEventListener('track',this._onaddstreampoly);}
-this.addEventListener('addstream',this._onaddstream=f);this.addEventListener('track',this._onaddstreampoly=function(e){var stream=e.streams[0];if(!this._remoteStreams){this._remoteStreams=[];}
-if(this._remoteStreams.indexOf(stream)>=0){return;}
-this._remoteStreams.push(stream);var event=new Event('addstream');event.stream=e.streams[0];this.dispatchEvent(event);}.bind(this));}});}},shimCallbacksAPI:function(window){if(typeof window!=='object'||!window.RTCPeerConnection){return;}
+if(!('onaddstream'in window.RTCPeerConnection.prototype)){Object.defineProperty(window.RTCPeerConnection.prototype,'onaddstream',{get:function(){return this._onaddstream;},set:function(f){var pc=this;if(this._onaddstream){this.removeEventListener('addstream',this._onaddstream);this.removeEventListener('track',this._onaddstreampoly);}
+this.addEventListener('addstream',this._onaddstream=f);this.addEventListener('track',this._onaddstreampoly=function(e){e.streams.forEach(function(stream){if(!pc._remoteStreams){pc._remoteStreams=[];}
+if(pc._remoteStreams.indexOf(stream)>=0){return;}
+pc._remoteStreams.push(stream);var event=new Event('addstream');event.stream=stream;pc.dispatchEvent(event);});});}});}},shimCallbacksAPI:function(window){if(typeof window!=='object'||!window.RTCPeerConnection){return;}
var prototype=window.RTCPeerConnection.prototype;var createOffer=prototype.createOffer;var createAnswer=prototype.createAnswer;var setLocalDescription=prototype.setLocalDescription;var setRemoteDescription=prototype.setRemoteDescription;var addIceCandidate=prototype.addIceCandidate;prototype.createOffer=function(successCallback,failureCallback){var options=(arguments.length>=2)?arguments[2]:arguments[0];var promise=createOffer.apply(this,[options]);if(!failureCallback){return promise;}
promise.then(successCallback,failureCallback);return Promise.resolve();};prototype.createAnswer=function(successCallback,failureCallback){var options=(arguments.length>=2)?arguments[2]:arguments[0];var promise=createAnswer.apply(this,[options]);if(!failureCallback){return promise;}
promise.then(successCallback,failureCallback);return Promise.resolve();};var withCallback=function(description,successCallback,failureCallback){var promise=setLocalDescription.apply(this,[description]);if(!failureCallback){return promise;}
@@ -596,12 +613,18 @@ promise.then(successCallback,failureCallback);return Promise.resolve();};prototy
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;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');}
+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'){if(audioTransceiver.setDirection){audioTransceiver.setDirection('sendonly');}else{audioTransceiver.direction='sendonly';}}else if(audioTransceiver.direction==='recvonly'){if(audioTransceiver.setDirection){audioTransceiver.setDirection('inactive');}else{audioTransceiver.direction='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.');}
+return origCreateOffer.apply(pc,arguments);};}};},{"../utils":13}],13:[function(require,module,exports){'use strict';var logDisabled_=true;var deprecationWarnings_=true;function extractVersion(uastring,expr,pos){var match=uastring.match(expr);return match&&match.length>=pos&&parseInt(match[pos],10);}
+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={extractVersion:extractVersion,wrapPeerConnectionEvent:wrapPeerConnectionEvent,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+)$/,2);}else if(navigator.mediaDevices&&navigator.userAgent.match(/AppleWebKit\/(\d+)\./)){result.browser='safari';result.version=this.extractVersion(navigator.userAgent,/AppleWebKit\/(\d+)\./,1);}else{result.browser='Not a supported browser.';return result;}
-return result;},};module.exports={log:utils.log,deprecated:utils.deprecated,disableLog:utils.disableLog,disableWarnings:utils.disableWarnings,extractVersion:utils.extractVersion,shimCreateObjectURL:utils.shimCreateObjectURL,detectBrowser:utils.detectBrowser.bind(utils)};},{}]},{},[3])(3)});
\ No newline at end of file
+console.warn(oldMethod+' is deprecated, please use '+newMethod+' instead.');},detectBrowser:function(window){var navigator=window&&window.navigator;var result={};result.browser=null;result.version=null;if(typeof window==='undefined'||!window.navigator){result.browser='Not a browser.';return result;}
+if(navigator.mozGetUserMedia){result.browser='firefox';result.version=extractVersion(navigator.userAgent,/Firefox\/(\d+)\./,1);}else if(navigator.webkitGetUserMedia){result.browser='chrome';result.version=extractVersion(navigator.userAgent,/Chrom(e|ium)\/(\d+)\./,2);}else if(navigator.mediaDevices&&navigator.userAgent.match(/Edge\/(\d+).(\d+)$/)){result.browser='edge';result.version=extractVersion(navigator.userAgent,/Edge\/(\d+).(\d+)$/,2);}else if(navigator.mediaDevices&&navigator.userAgent.match(/AppleWebKit\/(\d+)\./)){result.browser='safari';result.version=extractVersion(navigator.userAgent,/AppleWebKit\/(\d+)\./,1);}else{result.browser='Not a supported browser.';return result;}
+return result;}};},{}]},{},[3])(3)});
\ No newline at end of file