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Subject: Re: [NF] Webcams - how good? Brand/model/software?
Author: Rick Romero
Posted: 2003/12/30 14:55:00
 
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On Tue, 2003-12-30 at 13:34, Rick Romero wrote:
> > Is there a minimum CPU/memory or OS that all participants should have
> > in place, i.e. something along the lines of 1G/256M/XP?
>
> That should be fine. You need a decent CPU, no Celerons.

Heh.. Stay away from multiple USB webcams:

2003-12-30 13:25:45 [mainloop] Closing socket: 167.100.118.222
2003-12-30 13:25:45 [mainloop] Accepted new socket: 66.31.253.217
2003-12-30 13:25:46 [v4l] Sync alarm called!
2003-12-30 13:25:56 [mainloop] Closing socket: 66.31.253.217
2003-12-30 13:25:56 [mainloop] Accepted new socket: 66.31.253.217
2003-12-30 13:25:58 [v4l] Sync alarm called!
2003-12-30 13:26:02 [mainloop] Closing socket: 66.31.253.217
2003-12-30 13:26:02 [mainloop] Accepted new socket: 66.31.253.217

Those sync alarms is where the bus isn't keeping up with the software :(

FWIW
I do have 3 security cameras doing streaming and motion detection on a PII-300
with 128MB on it. But that's Linux, and that's all it does - it's also not
USB cameras, I have a 4 port BTTV capture card. I discard two frames switching
between inputs (it was a cheap card:( ), otherwise I get about 6 fps per camera.
So about 24fps total at 320x200.

It's not outside accessible, but here's a screenshot:
http://www.havokmon.com/stuff/valeocams.jpg

Those 3 are all streaming 'simultaneously' (like switching channels REALLY fast).

Rick





 
©2003 Rick Romero
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