blob: 68ee11fbee5718be09c99551274c0899cfc6c1b5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// This file overwrites the webkitRTCPeerConnection constructor with a
// new constructor which tracks all created connections. It does this by
// periodically gathering statistics on all connections, using the WebRTC
// statistics API. All reports are gathered into window.peerConnectionReports,
// which contains one list per connection. In each list there is a number of
// report batches, which in turn contains metric names mapped to values.
window.peerConnectionReports = [];
webkitRTCPeerConnection = (function() {
function getReportsAsDicts(getStatsResult) {
var result = [];
getStatsResult.forEach(function(report) {
var values = {};
report.names().forEach(function(name) {
values[name] = report.stat(name);
});
result.push(values);
});
return result;
}
function gatherStatsFromOneConnection(peerConnection) {
var connectionId = window.peerConnectionReports.length;
window.peerConnectionReports.push([]);
var pollIntervalMs = 1000;
setInterval(function() {
peerConnection.getStats(function(response) {
var reports = getReportsAsDicts(response.result());
window.peerConnectionReports[connectionId].push(reports);
});
}, pollIntervalMs);
}
var originalConstructor = webkitRTCPeerConnection;
return function() {
// Bind the incoming arguments to the original constructor.
var args = [null].concat(Array.prototype.slice.call(arguments));
var factoryFunction = originalConstructor.bind.apply(
originalConstructor, args);
// Create the object and track it.
var peerConnection = new factoryFunction();
gatherStatsFromOneConnection(peerConnection);
return peerConnection;
}
})();
|
