<html>
<head>
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
Hi Ross,<br>
<br>
My original report was not to blame your library. But to make sure I
was not using the library in a wrong way and to see if other people
have the same experience. I agree that there are many factors which
could influence the actual capacity of a network.<br>
<br>
Best regards,<br>
<br>
Frank van Eijkelenburg<br>
<br>
<div class="moz-cite-prefix">On 05-06-15 00:52, Ross Finlayson
wrote:<br>
</div>
<blockquote
cite="mid:E0FB985B-A198-446E-8DA1-F5DCA8755433@live555.com"
type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1252">
<div>
<blockquote type="cite" class="">
<div class=""> i have the some problem too and i don't think
the problem is caused by vlc. when I start multiple VLC
players and have them playing the stream of a ip camera
source, it is working fine . if i start and play them for
the remote proxyServer, I will get a bad performance . i try
to increase the socket buffer size but could not fix it. i
also use ffplay.exe to test proxyServer, then i find some
information maybe , the players' frame have a serious time
delay, and vlc always discard the delay frames so why we get
the bad performance .<br class="">
</div>
</blockquote>
<div><br class="">
</div>
Scalability problems like this are almost always caused by the
combined bitrate of the multiple-unicast streams (from the proxy
server) approaching or exceeding the capacity of your network.
(Note that when you had multiple VLC players playing a stream
from an IP camera, that this was probably a *multicast* stream
(because few network cameras support unicast streaming to more
than one simultaneous client). The proxy server, on the other
hand, streams to each of its clients via unicast; if it has N
concurrent clients, then the stream will be multiplied N times
(not counting the additional stream that came from the back-end
server).)</div>
<div><br class="">
</div>
<div>People tend to greatly overestimate the capacity of their
LANs. They may see a 100 Mbps or 1 Gbps Ethernet interface on
the back of their server computers, and assume that that’s the
capacity of their LAN. Usually not even close. The actual
capacity of a network depends on many factors, including OS and
network interface buffering, virtualization (if any), network
interface issues, the presence of routers (and even worse,
firewalls).</div>
<div><br class="">
</div>
<div>In any case, I’m not planning on responding to any more
reports like this unless they can also identify a specific
problem with our software that might be responsible.</div>
<br class="">
<br class="">
<div apple-content-edited="true" class="">
<span class="Apple-style-span" style="border-collapse: separate;
color: rgb(0, 0, 0); font-family: Helvetica; font-style:
normal; font-variant: normal; font-weight: normal;
letter-spacing: normal; line-height: normal; orphans: 2;
text-align: -webkit-auto; text-indent: 0px; text-transform:
none; white-space: normal; widows: 2; word-spacing: 0px;
-webkit-border-horizontal-spacing: 0px;
-webkit-border-vertical-spacing: 0px;
-webkit-text-decorations-in-effect: none;
-webkit-text-size-adjust: auto; -webkit-text-stroke-width:
0px; "><span class="Apple-style-span" style="border-collapse:
separate; color: rgb(0, 0, 0); font-family: Helvetica;
font-style: normal; font-variant: normal; font-weight:
normal; letter-spacing: normal; line-height: normal;
orphans: 2; text-align: -webkit-auto; text-indent: 0px;
text-transform: none; white-space: normal; widows: 2;
word-spacing: 0px; -webkit-border-horizontal-spacing: 0px;
-webkit-border-vertical-spacing: 0px;
-webkit-text-decorations-in-effect: none;
-webkit-text-size-adjust: auto; -webkit-text-stroke-width:
0px; ">Ross Finlayson<br class="">
Live Networks, Inc.<br class="">
<a moz-do-not-send="true" href="http://www.live555.com/"
class="">http://www.live555.com/</a></span></span>
</div>
<br class="">
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
live-devel mailing list
<a class="moz-txt-link-abbreviated" href="mailto:live-devel@lists.live555.com">live-devel@lists.live555.com</a>
<a class="moz-txt-link-freetext" href="http://lists.live555.com/mailman/listinfo/live-devel">http://lists.live555.com/mailman/listinfo/live-devel</a>
</pre>
</blockquote>
<br>
</body>
</html>