[AG-TECH] more on multi-input capture.

[Supreeya Miller]

Fred,

No.  I did not play with this as much as I wanted to.  I did not understand
about the whole x11 thing on Windows either.  May be some experts out there
could help answering :)

Supreeya Miller
System Administrator, Scientific Visualization Researcher, and Access Grid
Coordinator
Center of Higher Learning
Building 1103 Visualization Center
Stennis Space Center, MS  39529
Phone:  228-688-2190
Fax:    228-688-7454
E-mail: Supreeya.Miller at usm.edu


-----Original Message-----
From: Fred Dech [mailto:fdech at uchicago.edu]
Sent: Friday, July 15, 2005 3:58 PM
To: Supreeya Miller
Cc: AG_Tech_List
Subject: Re: [AG-TECH] more on multi-input capture.


thanks, Supreeya.
you didn't happen to test whether the display/capture software that comes
with the Osprey 230s works with the VFW drivers, did you?
x11 on a Win box.  how intriguing!

--fred

On Fri, Jul 15, 2005 at 03:39PM, Supreeya Miller said:
> Fred and Derek,
>
> I'm running XP for the Video machine, which has 3 PCI-x Opsprey 230 cards.
> The machine is 64 bit.  Here are the tricks I found to get each card to
work
> properly.  This needs to be done one time.  Then the successive times will
> work beautifully as the previous one.
> 	1. Use the legacy driver.  I read John Q's message on 5/16/2005.  The
> subject line was "Windows Capture Cards".
> 	2. Run vic manually (to any address and port) for the number of cards.
> Since the default is not-transmit, you will not get stuck with the Windows
> binding to one source.
> 	3. Choose "Configure on Transmit".  Amazingly the machine will show that
> you have 3 device capture cards (in my case).  Then you can set the video
> resolution and color mode.  I set the resolution to 352x288, so that I
will
> not have the gray frame around my video.  My machine also shown that I had
> the fourth source, which was x11....go figure.
> 	4. Pick one and click Transmit.
> 	5. Do the same thing with the rest of the cards.
> 	6. Terminate all vic programs.
> 	7. Run the AG program as usual.
> 	8. Use the "Manage my Node.." to rid of the x11 source.  Then save and
set
> as default that configuration.
>
> Since vic remember the last configuration, each one of my 3 vic programs
> always picks up each capture device correctly. This has worked well for me
> for the pass 5 weeks since the arrival of my 2 new DELL machines.  I don't
> have to choose capture devices again..not even one time.
>
> I hope my tricks will work for you guys.  Good luck.
>
> Supreeya Miller
> System Administrator, Scientific Visualization Researcher, and Access
> Grid Coordinator
> The Center of Higher Learning
> Building 1103 Room 102
> Stennis Space Center, MS  39529
> Phone:  228-688-2190
> Fax:      228-688-7454
> E-mail:  Supreeya.Miller at usm.edu
>
>
> -----Original Message-----
> From: owner-ag-tech at mcs.anl.gov [mailto:owner-ag-tech at mcs.anl.gov]On
> Behalf Of Fred Dech
> Sent: Wednesday, July 13, 2005 3:10 PM
> To: Derek Piper
> Cc: Thomas D. Uram; AG_Tech_List
> Subject: Re: [AG-TECH] more on multi-input capture.
>
>
> that is unless you get a set of cards or card that still use VFW drivers,
> like the older Winnov Videum cards we are currently using.
>
> --fred
>
> On Wed, Jul 13, 2005 at 02:54PM, Derek Piper said:
> >
> > 	It will happen regardless of the type of capture device, just so
> > 	that's clear. If you have more than one device that captures video, if
> it's
> > a USB camera or capture card, then you'll have that problem with
Windows.
> >
> > 	Derek
> >
> > Fred Dech wrote:
> > >hi Derek.
> > >
> > >i see.  that's useful information.  the EVERY TIME clause is a real
> > >drag, though.  in the case i'm thinking about, using linux is not an
> > >option.
> > >
> > >thanks, though.
> > >
> > >--fred
> > >
> > >On Wed, Jul 13, 2005 at 02:15PM, Derek Piper said:
> > >
> > >>	No, I explained how that part works my previous post. Maybe a
> > >>	diagram would be good.
> > >>
> > >>VIC -> 'Microsoft WDM Image Capture' -> Source0
> > >>VIC -> 'Microsoft WDM Image Capture' -> Source1
> > >>VIC -> 'Microsoft WDM Image Capture' -> Source2
> > >>VIC -> 'Microsoft WDM Image Capture' -> Source3
> > >>
> > >>	VIC only binds to 'Microsoft WDM Image Capture', *it doesn't know
> > >>	about the sources beyond that*. Upon invocation, the WDM driver will
> > >>	choose the first 'source' it can find, since none was given. This
leads
> > >>to all four VICs choosing Source0 (probably) and 3 of them will not be
> > >>able to get it and will complain by putting up a selector box to
choose
> > >>another source. So, you go ahead and choose another source, i.e.
Source1
> > >>for the first one you have to alter, then Source2 for the other one
etc.
> > >>All 4 VICs will then be up and running. Unfortunately you will need to
> do
> > >>this EVERY TIME you change venues. If it drives you crazy, use a Linux
> > >>box for video from multiple sources.
> > >>
> > >>	Derek
> > >>
> >
> > --
> > Derek Piper - dcpiper at indiana.edu - (812) 856 0111
> > IRI 323, School of Informatics
> > Indiana University, Bloomington, Indiana

--
  Fred Dech   fdech at uchicago.edu
  University of Chicago Dept. of Surgery
  Ph: (773) 834-8359, Fax: (773) 834-8140