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IP address display from stats.

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This CL demonstrates a couple of methods to extract more complex properties from the stats that are linked via stats IDs.

RISK=P3
TESTED=manual test
BUG=
R=juberti@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/1667005

git-svn-id: http://webrtc.googlecode.com/svn/trunk@4584 4adac7df-926f-26a2-2b94-8c16560cd09d
This commit is contained in:
hta@webrtc.org 2013-08-21 17:00:54 +00:00
parent 17018ed39c
commit cc39484770
1 changed files with 67 additions and 13 deletions
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80
samples/js/demos/html/constraints-and-stats.html
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@ -72,8 +72,6 @@ function streamConstraints() {
return constraints;
}
function connect() {
pc1 = new webkitRTCPeerConnection(null);
pc2 = new webkitRTCPeerConnection(null);
@ -114,6 +112,38 @@ function connect() {
});
}
// Augumentation of stats entries with utility functions.
// The augumented entry does what the stats entry does, but adds
// utility functions.
function AugumentedStatsResponse(response) {
this.response = response;
this.addressPairMap = [];
}
AugumentedStatsResponse.prototype.collectAddressPairs = function(componentId) {
if (!this.addressPairMap[componentId]) {
this.addressPairMap[componentId] = [];
for (var i = 0; i < this.response.result().length; ++i) {
var res = this.response.result()[i];
if (res.type == 'googCandidatePair' &&
res.stat('googChannelId') == componentId) {
this.addressPairMap[componentId].push(res);
}
}
}
return this.addressPairMap[componentId];
}
AugumentedStatsResponse.prototype.result = function() {
return this.response.result();
}
// The indexed getter isn't easy to prototype.
AugumentedStatsResponse.prototype.get = function(key) {
return this.response[key];
}
// Display statistics
var statCollector = setInterval(function() {
var display = function(str) {
@ -123,10 +153,11 @@ var statCollector = setInterval(function() {
display("No stream");
if (pc2 && pc2.getRemoteStreams()[0]) {
if (pc2.getStats) {
pc2.getStats(function(stats) {
pc2.getStats(function(rawStats) {
stats = new AugumentedStatsResponse(rawStats);
var statsString = '';
var results = stats.result();
var bitrateText = 'No bitrate stats';
var videoFlowInfo = 'No bitrate stats';
for (var i = 0; i < results.length; ++i) {
var res = results[i];
statsString += '<h3>Report ';
@ -139,14 +170,8 @@ var statCollector = setInterval(function() {
// Should check for mediatype = video, but this is not
// implemented yet.
if (res.type == 'ssrc' && res.stat('googFrameHeightReceived')) {
var bytesNow = res.stat('bytesReceived');
if (timestampPrev > 0) {
var bitRate = Math.round((bytesNow - bytesPrev) * 8 /
(res.timestamp - timestampPrev));
bitrateText = bitRate + ' kbits/sec';
}
timestampPrev = res.timestamp;
bytesPrev = bytesNow;
// This is the video flow.
videoFlowInfo = extractVideoFlowInfo(res, stats);
}
} else {
// Pre-227.0.1445 (188719) browser
@ -161,7 +186,7 @@ var statCollector = setInterval(function() {
}
}
$('receiverstats').innerHTML = statsString;
display(bitrateText);
display(videoFlowInfo);
});
pc1.getStats(function(stats) {
var statsString = '';
@ -196,6 +221,35 @@ var statCollector = setInterval(function() {
}
}, 1000);
function extractVideoFlowInfo(res, allStats) {
var description = '';
var bytesNow = res.stat('bytesReceived');
if (timestampPrev > 0) {
var bitRate = Math.round((bytesNow - bytesPrev) * 8 /
(res.timestamp - timestampPrev));
description = bitRate + ' kbits/sec';
}
timestampPrev = res.timestamp;
bytesPrev = bytesNow;
if (res.stat('transportId')) {
component = allStats.get(res.stat('transportId'));
if (component) {
addresses = allStats.collectAddressPairs(component.id);
if (addresses.length > 0) {
description += ' from IP ';
description += addresses[0].stat('googRemoteAddress');
} else {
description += ' no address';
}
} else {
description += ' No component stats';
}
} else {
description += ' No component ID';
}
return description;
}
// Dumping a stats variable as a string.
// might be named toString?
function dumpStats(obj) {