[AG-TECH] ExtendedVideoProducer question

John Toenjes UIUC jtoenjes at uiuc.edu
Tue Apr 24 19:04:44 CDT 2007

I don¹t know why it happens, but it has happened to me as well. It always
was a problem when plugging a camera directly into the Firewire port on the
PC. When I go into the DFG1394 and then into the Firewire port, everything
is fine.

So, it¹s not just you.


John Toenjes
Assistant Professor and Music Director
University of Illinois Urbana-Champaign Department of Dance
907 1/2 W. Nevada St.
Urbana, IL 61801
jtoenjes at uiuc.edu
(217) 265-0359

President, International Guild of Musicians in Dance

From: Nathan Gardiner <nathan.gardiner at canterbury.ac.nz>
Date: Wed, 25 Apr 2007 11:01:27 +1200
To: ag-tech <ag-tech at mcs.anl.gov>
Conversation: ExtendedVideoProducer question
Subject: [AG-TECH] ExtendedVideoProducer question

Hi there,
Been looking into the ExtendedVideoConsumer and Producer for Access Grid 2.4
& 3.0.2. I am coming across a problem I am hoping is easy to fix. Once I
have setup a DV stream and transmitting it, when I receive the stream it
comes out all blocky. I have attached an image of my DV stream with my hand
in front of the camera . This is the case for both versions made for AG2.4
and 3.0.2.
I downloaded the latest version of DVTS and connected via multicast using
DVTS interface and everything worked fine. I tried two different setups, one
with our DV camcorder plugged directly into the WinXP computer, and the
other setup of having a DV bridge and plugging the camcorder in via
composite to the DV bridge and then firewire from the bridge to the PC.
Could it be that this is due to a PAL issue? Or could it be due to a
bug/previous version in DVTS when the ExtendedVideo was compiled?
Has anyone else come across this issue? It would be great to get this
resolved so we can use DV over Access Grid.
Kind regards,
Nathan Gardiner
Human Interface Technology Lab NZ (HIT Lab NZ <http://www.hitlabnz.org/> )
Room 110, Old Maths Building, University of Canterbury
DDI: +64 3 364 3072, Cell: +64 21 163 2956

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