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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Thanks for the feedback Ross,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Sorry it it came across that I may be blaming the server for packet loss, this was not my intention, rather I was thinking that somewhere in the cross compilation there is
packet corruption rather than packet loss.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">In my original request I said that I redirected the output from the network to the disk, this was on the server side and was done in OutputSocket::write function so that
the exact data that was being sent to the network was being spooled to the disk, in the resulting file I still get video breakup however after reviewing this I suspect that the write function’s receive pointer will include rtp headers which means the resulting
file is not a ts file, I would need to perform this test higher up the chain I suspect.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">With regard to VLC, I now am receiving the rtp stream via VLC – I was using my development PC which has multiple network interfaces on it and I think VLC was listening on
the incorrect IF. I got a dedicated PC with a single network IF and this is receiving the files but with the same video loss.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Also with regard to our embedded systems network subsystem, we have DLNA deployed so the network is functional but I may have issues with multicast, I guess my next test
is to try a unicast transmission.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Anthony<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> live-devel [mailto:live-devel-bounces@ns.live555.com]
<b>On Behalf Of </b>Ross Finlayson<br>
<b>Sent:</b> 01 December 2014 01:58 PM<br>
<b>To:</b> LIVE555 Streaming Media - development & use<br>
<b>Subject:</b> Re: [Live-devel] Breakup with mips port<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Using the test transport stream from the live555 website “bipbop-gear1-all.ts” I ran the program testMPEG2TransportStreamer<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Using a windows VLC client I could not play the file back<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I presume you mean "could not play the *stream* back".<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">That's odd. Are you using a recent version of VLC? Do you have IP multicast connectivity between the server and the client (VLC) computer? Could your Windows firewall be blocking the multicast packets??<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">I get the same picture breakup so I am now confident that the losses are somewhere in the live555 framework<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">No. See <<a href="http://www.live555.com/liveMedia/faq.html#packet-loss">http://www.live555.com/liveMedia/faq.html#packet-loss</a>>, and note, in particular, the last paragraph.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Packet loss is usually seen in LIVE555-based *receivers* (and, as noted in the FAQ entry, is usually caused by insufficient buffering in the receiver's OS). It's unusual to see systematic packet loss (independent of the receiver(s)) occurring
with LIVE555-based *servers*, unless the output stream is exceeding the capacity of your network. But because "bipbop-gear1-all.ts" is such a low-bitrate stream, it's unlikely that network capacity is the problem here. I suspect either:<o:p></o:p></p>
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<p class="MsoNormal"><span class="apple-tab-span"> </span>1/ A systematic problem with your server (OS)'s network interface and/or multicast implementation that is causing this packet loss, or<o:p></o:p></p>
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<p class="MsoNormal"><span class="apple-tab-span"> </span>2/ If you have a router sitting between your server and client(s), a systematic problem with how it implements multicast forwarding, or<o:p></o:p></p>
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<p class="MsoNormal"><span class="apple-tab-span"> </span>3/ Some weird MIPS-related problem in how your server is running our code.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I would try the following:<o:p></o:p></p>
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<p class="MsoNormal">- Run the same server application ("testMPEG2TransportStreamer") using the same file(s), but running on some other architecture (e.g., Linux/Intel, or Mac OS).<o:p></o:p></p>
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<p class="MsoNormal">- Run the "LIVE555 Media Server" or "testOnDemandRTSPServer" demo application, which streams via unicast, rather than multicast.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Both of these should help you narrow down the problem.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p>
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<p class="MsoNormal"><span class="apple-style-span"><span style="font-family:"Helvetica","sans-serif";color:black">Ross Finlayson</span></span><span style="font-family:"Helvetica","sans-serif";color:black"><br>
<span class="apple-style-span">Live Networks, Inc.</span><br>
<span class="apple-style-span"><a href="http://www.live555.com/">http://www.live555.com/</a></span></span>
<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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