<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><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 href="http://www.live555.com/" class="">http://www.live555.com/</a></span></span>
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