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<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D">Ross and Live555 team,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D">I downloaded the March 1<sup>st</sup> version of Live555 package and tried it under my test environment. I’d like to say the problem of live555ProxyServer failure to work as
I mentioned in my previous emails still exists. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D">This time I found some pattern from my console log files. Approaching to the bottom of each failure log file, there is a segment of log as shown below. I am wondering the cause
of this dumping may also be related to the failure of the server? The number suffixed to the log file is the sequence number in the camera list at which the server stops working when the live view of camera is switched sequencially with VLC at a remote computer.
The server immediately starts to work fine after re-launched. Then it stops working at another camera. This is persistent when you switch back and forth from one camera to another with VLC.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D">If you need more info, please let me know.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D">Thanks lots<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D">Dashan Chang<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">----------------------------------------------------------------------------------------------------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">DA5402_VIDEO_18_FLR_OFFICE_ENTRY_CORRIDOR_18-162
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">DA5402_VIDEO_18TH_FLR_SERVER_ROOM
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">DA5402_VIDEO_18_FLR_STAIR_EXIT_WEST_NEAR_18-168
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">DA5402_VIDEO_18_FLR_STAIR_EXIT_EAST_NEAR_18-130
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">DA5402_VIDEO_18_FLR_OFFICE_EXIT_VESTIBULE_18-102
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">DA5402_VIDEO_17_FLR_BULK_STORAGE_EXIT_17-106
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">DA5402_VIDEO_17_FLR_OFFICE_ENTRY_FROM_RECEPTION
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">DA5402_VIDEO_17_FLR_OFFICE_ENTRY_CORRIDOR_17-146
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">DA5402_VIDEO_17_FLR_STAIR_ENTRY_EAST_NEAR_17-12
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">DA5402_VIDEO_17_FLR_STAIR_ENTRY_WEST_NEAR_17-16
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">DA5402_VIDEO_1ST_FLR_TESTIMONY_MAIN_ENTRY
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">DA5402_VIDEO_1ST_FLR_BUSINESS_CNTR_EMERGENCY_EXIT
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">DA5402_VIDEO_1ST_FLR_TESTIMONY_WORK_ROOM
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">DA5402_VIDEO_1ST_FLR_MAIN_ENTRY_WAITING_ROOM
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">rtsp://root:pass@10.175.47.30/axis-media/media.amp?resolution=320x240&color=0&compression=50
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">rtsp://root:pass@10.175.47.31/axis-media/media.amp?resolution=320x240&color=0&compression=50
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">rtsp://root:pass@10.175.47.32/axis-media/media.amp?resolution=320x240&color=0&compression=50
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">rtsp://root:pass@10.175.47.33/axis-media/media.amp?resolution=320x240&color=0&compression=50
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">rtsp://root:pass@10.175.47.34/axis-media/media.amp?resolution=320x240&color=0&compression=50
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">rtsp://root:pass@10.175.47.35/axis-media/media.amp?resolution=320x240&color=0&compression=50
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">rtsp://root:pass@10.175.47.36/axis-media/media.amp?resolution=320x240&color=0&compression=50
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">rtsp://root:pass@10.175.47.37/axis-media/media.amp?resolution=320x240&color=0&compression=50
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">rtsp://root:pass@10.175.47.38/axis-media/media.amp?resolution=320x240&color=0&compression=50
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">rtsp://root:pass@10.175.47.39/axis-media/media.amp?resolution=320x240&color=0&compression=50
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">rtsp://root:pass@10.175.47.40/axis-media/media.amp?resolution=320x240&color=0&compression=50
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">rtsp://root:pass@10.175.47.41/axis-media/media.amp?resolution=320x240&color=0&compression=50
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">rtsp://root:pass@10.175.47.42/axis-media/media.amp?resolution=320x240&color=0&compression=50
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">rtsp://root:pass@10.175.47.43/axis-media/media.amp?resolution=320x240&color=0&compression=50<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Chang, Dashan
<br>
<b>Sent:</b> Friday, February 27, 2015 4:36 PM<br>
<b>To:</b> LIVE555 Streaming Media - development & use<br>
<b>Subject:</b> RE: [Live-devel] Bug report of Live555ProxyServer<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D">Ross,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D">Thank you very much for your quick response.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D">One difference I noticed in the log file, the camera login info is missing from the request URL. Originally it shows up. Could this be the cause of the proxyserver
stopping working? I will test it with just two streams next week.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D">Virtually I changed only one line of your code: from sprintf(streamName, "proxyStream-%d", i) to sprintf(streamName, "proxyStream-%s", CameraName) as I found
using a name easier to identify one from another.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D">Using VLC application is only for testing purpose. Eventually I’d like to use web app with VLC’s web plugin to display a live view. If you have other source to
recommend, I’d be happy to give it a try. When I am testing, I only use one instance of VLC. Because I stream out many cameras, I keep switching from one camera to another with VLC. However at a particular moment, I only send one RTSP request to the Live555
Proxy Server. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif"">“With such a large number of proxied streams, perhaps you are simply overwhelming the capacity of your network?”,
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D">Actually I think it shouldn’t be that way. I do have many cameras. I may even have a scenario that I’d like to have one Live555ProxyServer to connect to 200 cameras backend. However
at any moment, there is only one live view request or at most a couple of live view requests. Rationally, a Proxy Server should only request stream from its backend RTSP camera only when there is a request to it. If the outside request stops, the backend request
should be stopped. If outside request holds, backend streaming holds. Only when there are many requests simultaneously, then there would be overwhelming to the network bandwidth.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D">Even though it has not yet been perfect, I like the ProxyServer and it should be able to become a great product. I’d like to thank you for your great work.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D">Thanks lots again and best regards<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D">Dashan<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> live-devel [<a href="mailto:live-devel-bounces@ns.live555.com">mailto:live-devel-bounces@ns.live555.com</a>]
<b>On Behalf Of </b>Ross Finlayson<br>
<b>Sent:</b> Friday, February 27, 2015 2:13 PM<br>
<b>To:</b> LIVE555 Streaming Media - development & use<br>
<b>Subject:</b> Re: [Live-devel] Bug report of Live555ProxyServer<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Dashan,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<div>
<p class="MsoNormal">First, your log file reveals that you have made at least some changes to the supplied code. We can support only the original, unmodified 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">Second, your first test shouldn’t be with such a large number of proxied streams. Can you reproduce your problem with just two streams?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Third, what specifically do you mean by “switch back and forth between one camera to another”? You understand, I hope, that each time you start viewing (using VLC, or any other RTSP client) a new proxied stream, you are increasing the
network traffic in front of the proxy server, and also - if this was the first request to view the proxied stream - the network traffic behind the proxy server. If you don’t explicitly stop playing (using VLC’s ‘stop’ button) the first stream when you switch
to a second stream, then the first stream will continue to be streamed. With such a large number of proxied streams, perhaps you are simply overwhelming the capacity of your network?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Finally, “VLC" is not a good RTSP client to be using for your initial testing. VLC is not our software, and it has known scalability problems if you try to run two or more instances of VLC on the same computer (if that’s what you’re doing).
I suggest using “openRTSP” <<a href="http://www.live555.com/openRTSP/">http://www.live555.com/openRTSP/</a>> instead, at least initially.<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 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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