[streaming] Re: monitoring several simultaneous signals

[Nikos Antonopoulos]

have you considered the mosaic vlc plugin?
This will let give you some an idea on the status of all inputs at a 
glance. However as Marshall Eubanks suggests it's kinda hard having 
someone watching 24/7 so u might want to try his suggestions...

Marshall Eubanks wrote:
> Hello;
>
> On Apr 14, 2007, at 4:38 AM, Jean-Paul Saman wrote:
>
>> Anthony Benjammin DeNardo III wrote:
>>> we are currently multicasting 5 channels (channel = mpeg stream) to 
>>> our campus using VLC.  I am curious, is anyone else monitoring 
>>> several streams at the same time?  I've tried with two pretty beefy 
>>> computers (G5/1GB RAM, dualcore2GHz/1GB RAM) and neither seem to be 
>>> able to keep up with decoding more than 3 or 4 streams at the same 
>>> time :-(
>>
>> Obviously you need more computers (decoding system) for visually 
>> monitoring all your multicast streams. The CPU and memory 
>> requirements are dictated by the multicasts itself. If it are big 
>> streams, then it requires a lot of CPU.
>>
>
> Monitoring for what purpose ? If you just want to see transport level 
> stuff (is the stream up, are the packets well formed, is there
> much jitter / loss, etc.), then rtpdump and rtpqual can do this 
> without killing your CPU. If you want to check A/V sync or color balance,
> one machine cycling through the channels should work fine. If you want 
> to show a bunch of multiple Mbps HD streams on monitors to impress 
> visitors, I would use 1 CPU per stream.
>
> Note, BTW, that it is very hard to get humans to look at something for 
> hours on end to spot very rare failures as part of their job.
> Their brains will simply turn off. I would therefore include a 
> prominent mechanism for audience feedback and monitor that as well.
>
> Regards
> Marshall
>
>
>>> what I'm interested in, is creating a monitoring station, where we 
>>> can check the integrity of each transmission at a glance.  so I 
>>> envision that we will shortly scale our multicasting up to 16 
>>> channels.  I would like to be able to watch something like a 2 inch 
>>> by 2inch window of each of the 16 channels.
>>
>> Or you could use one visuall monitoring system that browses through 
>> all your streams every, eg: ~5 seconds.
>>
>>> can anyone recommend a system that might be able to handle this?   
>>> or if you have other suggestions, I'm open :-)
>>
>> Or write a heartbeat/health monitor for the streaming VLC's. One of 
>> the VideoLAN consultants/partners called M2X (www.m2x.nl) could do 
>> that for you, if you are interested.
>>
>> Gtz,
>> Jean-Paul Saman.
>>
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>
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