319 lines
12 KiB
JavaScript
319 lines
12 KiB
JavaScript
function TraceablePeerConnection(ice_config, constraints) {
|
|
var self = this;
|
|
var RTCPeerconnection = navigator.mozGetUserMedia ? mozRTCPeerConnection : webkitRTCPeerConnection;
|
|
this.peerconnection = new RTCPeerconnection(ice_config, constraints);
|
|
this.updateLog = [];
|
|
this.stats = {};
|
|
this.statsinterval = null;
|
|
this.maxstats = 0; // limit to 300 values, i.e. 5 minutes; set to 0 to disable
|
|
var Interop = require('sdp-interop').Interop;
|
|
this.interop = new Interop();
|
|
|
|
// override as desired
|
|
this.trace = function (what, info) {
|
|
//console.warn('WTRACE', what, info);
|
|
self.updateLog.push({
|
|
time: new Date(),
|
|
type: what,
|
|
value: info || ""
|
|
});
|
|
};
|
|
this.onicecandidate = null;
|
|
this.peerconnection.onicecandidate = function (event) {
|
|
self.trace('onicecandidate', JSON.stringify(event.candidate, null, ' '));
|
|
if (self.onicecandidate !== null) {
|
|
self.onicecandidate(event);
|
|
}
|
|
};
|
|
this.onaddstream = null;
|
|
this.peerconnection.onaddstream = function (event) {
|
|
self.trace('onaddstream', event.stream.id);
|
|
if (self.onaddstream !== null) {
|
|
self.onaddstream(event);
|
|
}
|
|
};
|
|
this.onremovestream = null;
|
|
this.peerconnection.onremovestream = function (event) {
|
|
self.trace('onremovestream', event.stream.id);
|
|
if (self.onremovestream !== null) {
|
|
self.onremovestream(event);
|
|
}
|
|
};
|
|
this.onsignalingstatechange = null;
|
|
this.peerconnection.onsignalingstatechange = function (event) {
|
|
self.trace('onsignalingstatechange', self.signalingState);
|
|
if (self.onsignalingstatechange !== null) {
|
|
self.onsignalingstatechange(event);
|
|
}
|
|
};
|
|
this.oniceconnectionstatechange = null;
|
|
this.peerconnection.oniceconnectionstatechange = function (event) {
|
|
self.trace('oniceconnectionstatechange', self.iceConnectionState);
|
|
if (self.oniceconnectionstatechange !== null) {
|
|
self.oniceconnectionstatechange(event);
|
|
}
|
|
};
|
|
this.onnegotiationneeded = null;
|
|
this.peerconnection.onnegotiationneeded = function (event) {
|
|
self.trace('onnegotiationneeded');
|
|
if (self.onnegotiationneeded !== null) {
|
|
self.onnegotiationneeded(event);
|
|
}
|
|
};
|
|
self.ondatachannel = null;
|
|
this.peerconnection.ondatachannel = function (event) {
|
|
self.trace('ondatachannel', event);
|
|
if (self.ondatachannel !== null) {
|
|
self.ondatachannel(event);
|
|
}
|
|
};
|
|
if (!navigator.mozGetUserMedia && this.maxstats) {
|
|
this.statsinterval = window.setInterval(function() {
|
|
self.peerconnection.getStats(function(stats) {
|
|
var results = stats.result();
|
|
for (var i = 0; i < results.length; ++i) {
|
|
//console.log(results[i].type, results[i].id, results[i].names())
|
|
var now = new Date();
|
|
results[i].names().forEach(function (name) {
|
|
var id = results[i].id + '-' + name;
|
|
if (!self.stats[id]) {
|
|
self.stats[id] = {
|
|
startTime: now,
|
|
endTime: now,
|
|
values: [],
|
|
times: []
|
|
};
|
|
}
|
|
self.stats[id].values.push(results[i].stat(name));
|
|
self.stats[id].times.push(now.getTime());
|
|
if (self.stats[id].values.length > self.maxstats) {
|
|
self.stats[id].values.shift();
|
|
self.stats[id].times.shift();
|
|
}
|
|
self.stats[id].endTime = now;
|
|
});
|
|
}
|
|
});
|
|
|
|
}, 1000);
|
|
}
|
|
};
|
|
|
|
dumpSDP = function(description) {
|
|
if (typeof description === 'undefined' || description == null) {
|
|
return '';
|
|
}
|
|
|
|
return 'type: ' + description.type + '\r\n' + description.sdp;
|
|
};
|
|
|
|
if (TraceablePeerConnection.prototype.__defineGetter__ !== undefined) {
|
|
TraceablePeerConnection.prototype.__defineGetter__('signalingState', function() { return this.peerconnection.signalingState; });
|
|
TraceablePeerConnection.prototype.__defineGetter__('iceConnectionState', function() { return this.peerconnection.iceConnectionState; });
|
|
TraceablePeerConnection.prototype.__defineGetter__('localDescription', function() {
|
|
this.trace('getLocalDescription::preTransform (Plan A)', dumpSDP(this.peerconnection.localDescription));
|
|
// if we're running on FF, transform to Plan B first.
|
|
var desc = this.peerconnection.localDescription;
|
|
if (navigator.mozGetUserMedia) {
|
|
desc = this.interop.toPlanB(desc);
|
|
} else {
|
|
desc = APP.simulcast.reverseTransformLocalDescription(this.peerconnection.localDescription);
|
|
}
|
|
this.trace('getLocalDescription::postTransform (Plan B)', dumpSDP(desc));
|
|
return desc;
|
|
});
|
|
TraceablePeerConnection.prototype.__defineGetter__('remoteDescription', function() {
|
|
this.trace('getRemoteDescription::preTransform (Plan A)', dumpSDP(this.peerconnection.remoteDescription));
|
|
// if we're running on FF, transform to Plan B first.
|
|
var desc = this.peerconnection.remoteDescription;
|
|
if (navigator.mozGetUserMedia) {
|
|
desc = this.interop.toPlanB(desc);
|
|
} else {
|
|
desc = APP.simulcast.reverseTransformRemoteDescription(this.peerconnection.remoteDescription);
|
|
}
|
|
this.trace('getRemoteDescription::postTransform (Plan B)', dumpSDP(desc));
|
|
return desc;
|
|
});
|
|
}
|
|
|
|
TraceablePeerConnection.prototype.addStream = function (stream) {
|
|
this.trace('addStream', stream.id);
|
|
APP.simulcast.resetSender();
|
|
try
|
|
{
|
|
this.peerconnection.addStream(stream);
|
|
}
|
|
catch (e)
|
|
{
|
|
console.error(e);
|
|
return;
|
|
}
|
|
};
|
|
|
|
TraceablePeerConnection.prototype.removeStream = function (stream, stopStreams) {
|
|
this.trace('removeStream', stream.id);
|
|
APP.simulcast.resetSender();
|
|
if(stopStreams) {
|
|
stream.getAudioTracks().forEach(function (track) {
|
|
track.stop();
|
|
});
|
|
stream.getVideoTracks().forEach(function (track) {
|
|
track.stop();
|
|
});
|
|
}
|
|
|
|
try {
|
|
// FF doesn't support this yet.
|
|
this.peerconnection.removeStream(stream);
|
|
} catch (e) {
|
|
console.error(e);
|
|
}
|
|
};
|
|
|
|
TraceablePeerConnection.prototype.createDataChannel = function (label, opts) {
|
|
this.trace('createDataChannel', label, opts);
|
|
return this.peerconnection.createDataChannel(label, opts);
|
|
};
|
|
|
|
TraceablePeerConnection.prototype.setLocalDescription = function (description, successCallback, failureCallback) {
|
|
this.trace('setLocalDescription::preTransform (Plan B)', dumpSDP(description));
|
|
// if we're running on FF, transform to Plan A first.
|
|
if (navigator.mozGetUserMedia) {
|
|
description = this.interop.toUnifiedPlan(description);
|
|
} else {
|
|
description = APP.simulcast.transformLocalDescription(description);
|
|
}
|
|
this.trace('setLocalDescription::postTransform (Plan A)', dumpSDP(description));
|
|
var self = this;
|
|
this.peerconnection.setLocalDescription(description,
|
|
function () {
|
|
self.trace('setLocalDescriptionOnSuccess');
|
|
successCallback();
|
|
},
|
|
function (err) {
|
|
self.trace('setLocalDescriptionOnFailure', err);
|
|
failureCallback(err);
|
|
}
|
|
);
|
|
/*
|
|
if (this.statsinterval === null && this.maxstats > 0) {
|
|
// start gathering stats
|
|
}
|
|
*/
|
|
};
|
|
|
|
TraceablePeerConnection.prototype.setRemoteDescription = function (description, successCallback, failureCallback) {
|
|
this.trace('setRemoteDescription::preTransform (Plan B)', dumpSDP(description));
|
|
// if we're running on FF, transform to Plan A first.
|
|
if (navigator.mozGetUserMedia) {
|
|
description = this.interop.toUnifiedPlan(description);
|
|
}
|
|
else {
|
|
description = APP.simulcast.transformRemoteDescription(description);
|
|
}
|
|
this.trace('setRemoteDescription::postTransform (Plan A)', dumpSDP(description));
|
|
var self = this;
|
|
this.peerconnection.setRemoteDescription(description,
|
|
function () {
|
|
self.trace('setRemoteDescriptionOnSuccess');
|
|
successCallback();
|
|
},
|
|
function (err) {
|
|
self.trace('setRemoteDescriptionOnFailure', err);
|
|
failureCallback(err);
|
|
}
|
|
);
|
|
/*
|
|
if (this.statsinterval === null && this.maxstats > 0) {
|
|
// start gathering stats
|
|
}
|
|
*/
|
|
};
|
|
|
|
TraceablePeerConnection.prototype.close = function () {
|
|
this.trace('stop');
|
|
if (this.statsinterval !== null) {
|
|
window.clearInterval(this.statsinterval);
|
|
this.statsinterval = null;
|
|
}
|
|
this.peerconnection.close();
|
|
};
|
|
|
|
TraceablePeerConnection.prototype.createOffer = function (successCallback, failureCallback, constraints) {
|
|
var self = this;
|
|
this.trace('createOffer', JSON.stringify(constraints, null, ' '));
|
|
this.peerconnection.createOffer(
|
|
function (offer) {
|
|
self.trace('createOfferOnSuccess::preTransform (Plan A)', dumpSDP(offer));
|
|
// if we're running on FF, transform to Plan B first.
|
|
if (navigator.mozGetUserMedia) {
|
|
offer = self.interop.toPlanB(offer);
|
|
}
|
|
self.trace('createOfferOnSuccess::postTransform (Plan B)', dumpSDP(offer));
|
|
successCallback(offer);
|
|
},
|
|
function(err) {
|
|
self.trace('createOfferOnFailure', err);
|
|
failureCallback(err);
|
|
},
|
|
constraints
|
|
);
|
|
};
|
|
|
|
TraceablePeerConnection.prototype.createAnswer = function (successCallback, failureCallback, constraints) {
|
|
var self = this;
|
|
this.trace('createAnswer', JSON.stringify(constraints, null, ' '));
|
|
this.peerconnection.createAnswer(
|
|
function (answer) {
|
|
self.trace('createAnswerOnSuccess::preTransfom (Plan A)', dumpSDP(answer));
|
|
// if we're running on FF, transform to Plan A first.
|
|
if (navigator.mozGetUserMedia) {
|
|
answer = self.interop.toPlanB(answer);
|
|
} else {
|
|
answer = APP.simulcast.transformAnswer(answer);
|
|
}
|
|
self.trace('createAnswerOnSuccess::postTransfom (Plan B)', dumpSDP(answer));
|
|
successCallback(answer);
|
|
},
|
|
function(err) {
|
|
self.trace('createAnswerOnFailure', err);
|
|
failureCallback(err);
|
|
},
|
|
constraints
|
|
);
|
|
};
|
|
|
|
TraceablePeerConnection.prototype.addIceCandidate = function (candidate, successCallback, failureCallback) {
|
|
var self = this;
|
|
this.trace('addIceCandidate', JSON.stringify(candidate, null, ' '));
|
|
this.peerconnection.addIceCandidate(candidate);
|
|
/* maybe later
|
|
this.peerconnection.addIceCandidate(candidate,
|
|
function () {
|
|
self.trace('addIceCandidateOnSuccess');
|
|
successCallback();
|
|
},
|
|
function (err) {
|
|
self.trace('addIceCandidateOnFailure', err);
|
|
failureCallback(err);
|
|
}
|
|
);
|
|
*/
|
|
};
|
|
|
|
TraceablePeerConnection.prototype.getStats = function(callback, errback) {
|
|
if (navigator.mozGetUserMedia) {
|
|
// ignore for now...
|
|
if(!errback)
|
|
errback = function () {
|
|
|
|
}
|
|
this.peerconnection.getStats(null,callback,errback);
|
|
} else {
|
|
this.peerconnection.getStats(callback);
|
|
}
|
|
};
|
|
|
|
module.exports = TraceablePeerConnection;
|
|
|