Hi Andrew and all


I am not sure if this is relevant, but I saw similar images when testing on a 
Fedora 8 (Linux) system when I didn't have the nvidia display driver installed.



Does the windows version require hardware encoding like the linux version 
does???



Just a thought.



Cheers,

Jason.



From: Andrew Rowley [mailto:andrew.row...@manchester.ac.uk]
Sent: Monday, 21 April 2008 8:32 PM
To: Andrew Ford; Douglas Kosovic
Cc: ag-tech
Subject: RE: [AG-TECH] Any more H.264 news?



Hi,



I have tried firewire capture on windows and get similar results - I just get a 
kind of set of lines (see attached image).



I have a feeling that this is due to vic assuming that the camera source is a 
standard size (e.g. 352x288) when it isn't.  It looks like it is picking up an 
image from the camera (it changes when I move around in front of the camera) 
but it is only using some of that image (I think).



This was using a Sony MiniDV camera.



Andrew :)

---------------------------------------------------------

  Andrew G D Rowley
  Senior Development Officer

  Research Computing Services
  The University of Manchester
  Kilburn Building, Oxford Road
  Manchester, M13 9PL

  t :  +44 (0) 161 275 0685
  e :  andrew.row...@manchester.ac.uk
  w :  www.manchester.ac.uk/researchcomputing

---------------------------------------------------------

  _____

From: owner-ag-t...@mcs.anl.gov [mailto:owner-ag-t...@mcs.anl.gov] On Behalf Of 
Andrew Ford
Sent: 18 April 2008 21:21
To: Douglas Kosovic
Cc: ag-tech
Subject: Re: [AG-TECH] Any more H.264 news?



On Wed, Apr 16, 2008 at 8:54 PM, Douglas Kosovic 
<dougl...@itee.uq.edu.au<mailto:dougl...@itee.uq.edu.au>> wrote:

   UQ Vislab vic doesn't do any transcoding from DV (or HDV) firewire devices 
to other codecs, so if the codebase was merged as it stands now, it wouldn't do 
what you are trying to do anyway.


   Well, doing raw DV without transcoding would be fine (if it were on both 
platforms), since we can spare the bandwidth - that's what we're already doing 
via the ExtendedVideo services on Windows, but we'd like to be able to move on 
to something more cross-platform.


   Have you tried using DV4Linux so that your Camcorder can be seen as a V4L 
device? I haven't tried it myself.


   Interesting, I'll have to try that out. Would vic theoretically be able to 
transmit 640 (or 720)x480 video from a V4L device?

   As for the flashing verticle line artifacts on Windows, I don't seem them, 
but I was using a quad-core 2.6GHz Xeon.


   We've seen it here on a couple of different systems - a Dell w/ a dual-core 
+ hyperthreading 3.46Ghz CPU, and Suns with 2x dual-core 2.2Ghz Opterons - so I 
doubt it's CPU-related. Can anyone else chime in if they've tried the firewire 
capture on Windows?

   --Andrew

Reply via email to