[AG-TECH] Problem finding new video capture card (Winnov Videum Quattro)

[Chris Rosenthal]

I am working on putting together a new hardware configuration for our
main node and we are testing the new 4 (s-video) input card from
Winnov (Videum Quattro).  After receiving some new drivers from
Winnov, I seem to have the card installed properly (I can see video in
their included software).

However, the card does not show up as an option in the Manage My Node
dialogue when I try to add a VideoProducer service.  I've seen this
problem in the past with multiple Osprey cards, and currently I am
using the edit that Darran Edmundson sent to the list last July (see
below).  I could do the same thing, but the card doesn't even show up
as a device option in vic (so I don't know the name of the resource to
append to the resource list).

I would really appreciate the help getting this card working as soon
as possible.

Thanks,
Chris


From: Darran Edmundson [mailto:darran.edmundson at anu.edu.au]
Sent: Tuesday, July 06, 2004 1:31 AM
To: ag-tech at mcs.anl.gov
Subject: [AG-TECH] hack to solve Osprey problem under AGtk2.2 and WinXP
...

Problem:

For nodes with multiple Osprey cards running AGTk-2.2 under
Windows XP, multiple instances of vic contend for the same
capture card.  The workaround is to manually resolve
the vic contentions after changing venues.  This is a
pain.  Pending a proper fix, you might wish to try the
following.  It works for us - your mileage may vary.

Hack:

1) On your video machine, open the file
     c:\Python23\Lib\site-packages\AccessGrid\Platform\win32\Config.py
   Save a copy of this file so you can undo the following if
   necessary.

2) Line 985 should be the definition of the SystemConfig class
   method GetResources:

    def GetResources(self):
        """
        Return a list of the resources available on the system
        """
    ...

3) This method builds a list of AGVideoResource entries (one
   for each capture device) by scanning your Windows registry.
   Our registry did not contain entries for both Osprey cards.
   Rather than change the registry, the following hack sets
   the list of "found" resources explicitly.

   Around line 1020, a return statement sends back the list
   of discovered resources.  Insert the following code indented
   the same amount as the final return statement.

        # hack to hardcode known resources
        resourceList = list()
        resourceList.append( AGVideoResource(
            'video', 'o100vc.dll - Osprey Capture Card 1','producer',
            ['external-in']))
        resourceList.append( AGVideoResource(
            'video', 'o100vc.dll - Osprey Capture Card 2','producer',
            ['external-in']))
        resourceList.append( AGVideoResource(
            'video', 'o100vc.dll - Osprey Capture Card 3','producer',
            ['external-in']))
        print "hack to hardcode known video resources ..."
        return resourceList

4) Save and restart your video machine AGServiceManager.  You
   should see the "hack to hardcode .." print statement output.

5) "Manage my node" and remove and re-add the VideoProducer services.
   You should be prompted for the desired resource.

6) Let me know if it works ...

Cheers,
Darran.

--
Darran Edmundson (darran.edmundson at anu.edu.au)
ANU Supercomputer Facility Vizlab
Australian National University, Canberra, ACT 2600
tel: +61 2 6125-0517  fax: +61 2 6125-5088
-- 
Chris Rosenthal
Electronic Visualization Laboratory
University of Illinois - Chicago
Phone: 312.996.3002