[AG-TECH] Multiple USB cams with AG3/Win

[monika.k.rabarison at ccaix.jsums.edu]

Just to confirm that what Derek described on the vv3 chat is
exactely what I was talking about.

>     I was noticing the same thing when I was in the venue
> and was telling  Tom about it. The VIC behavior doesn't
> appear to be much different than  before.
>     My own experiences are in the venue chat on the
> default VV3 lobby.
> 
>     Derek
> 
> monika.k.rabarison at ccaix.jsums.edu wrote:
> > I just did a similar test on AG 2.4 (did not have a
> > chance to try on AG3 yet)with 1 Sony on Hauppauge and 2
> > QuickCams on USBs, on Windows XP. I don't see any
> > difference in the frame rates(JSU streams on attached
> > picture).  
> > The deal is, randomly one of the camera starts to
> > display for vic when entering a venue, the other 2 vics
> > request a selection of the video device. If the Sony
> > camera does not display yet, it is easy to select the
> > "Hauppauge WinTV Capture" as the video device for the
> > 2nd vic. The problem is that it seems there is no way to
> > know which one of the 2 "Logitech Quickcam Pro 4000" to
> > select in the dropdown menu( pic attached)for the 3rd
> > vic. If I am "lucky", I get the one that is not in use
> > yet, and life is great. If not, I get a runtime error,
> > and the 3rd vic exits. 
> > Any idea to handle this (in AG3)? Any way to tie each
> > camera with a specific vic by default on Windows?
> > 
> > -Monika
> > 
> > 
> >>The performance problem is likely the usb bus. You might
> >>have to switch usb connectors to get a different usb
> root >>device to get the best bandwidth, but this is great
> news >>for folks with 8 ports ;-)
> >>
> >>--Ivan
> >>
> >>
> >>>-----Original Message-----
> >>>From: owner-ag-tech at mcs.anl.gov
> >>>[mailto:owner-ag-tech at mcs.anl.gov] On Behalf Of Thomas
> >>>D. Uram Sent: Tuesday, March 07, 2006 1:55 PM
> >>>To: ag-tech
> >>>Subject: [AG-TECH] Multiple USB cams with AG3/Win
> >>>
> >>>
> >>>The question came up today about use of multiple USB
> >>>cameras with AG3 under Windows.  I tried it today, and
> >>>it worked: 
> >>>http://www.mcs.anl.gov/~turam/AG/vicWith2USBCams.PNG
> >>>
> >>>A Logitech Quickcam 3000 and a 4000 looking at each
> >>>other (yes, the one stream is duplicated).
> >>>
> >>>Note that the framerate on one camera only got to 10fps
> ; >>>I didn't look into that at all.
> >>>
> >>>Tom
> >>
> >> 
> >>
> >>
> >>
> ----------------------------------------------------------
> -------------- >>
> >>
> >>
> ----------------------------------------------------------
> -------------- >>
> 
> -- 
> Derek Piper - dcpiper at indiana.edu - (812) 856 0111
> IRI 323, School of Informatics
> Indiana University, Bloomington, Indiana