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Re: InterestedRe: color quickcam and linux


To continue this thread,

Russ, the web page for the bt driver is:

http://www.thp.uni-koeln.de/~rjkm/linux/bttv.html

Yes, I know about the direct-to-video limitation, and bought an ATI
Video Expression+ at the same time.  Seems to work fine under Windoze.
The bttv driver comes with a command line program "grab", which is all
I've been trying to use.  In this case I don't know if it's still
going for video memory or not.  Maybe some of the better hardware
programmers might get some insights from the source code.

Stew

~~ Stew Benedict  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~    AYS Enterprises ~~
benedict@netcom.com        http://www.geocities.com/SiliconValley/8608
~~~~~~      "It's not just shy sluggin' gorms neemer!"          ~~~~~~


On Wed, 13 Aug 1997, Gary Stringer wrote:

> 
> Hi,
>   I'm involved with a project where we're using MBone tools for 
> language teaching, ie vic, rat, wb etc., but designing our own 
> 'easier' interface to them. We're using both Linux :) and Win95 :( 
> 
> >> hembree@mindspring.com writes:
> >> 
> >>  >         I would be using it for a badging application. The user
> >>  > space version has too slow a frame rate.
> >> 
> >> This is the biggest problem with a quickcam.  It takes too much CPU
> >> time for too low a frame rate.  My feeling is that they MUST move to a
> 
> We too are finding that the QuickCam frame rate is just too slow, and have
> reluctantly bought a bt848-based capture card (Hauppauge WinTV/pci) with a 
> Hauppauge camera (cost around GBP200 total) to play with instead. The quickcam
> is looking rather dated now, though its big advantage is its third-party
> support (thanks!)
> 
> Stew Benedict wrote:
> 
> > I've been trying to get this thing running under Linux, no luck so far.
> > I got the bt848 driver for the Miro PCTV card that comes with the EggCam,
> > the module loads OK, but when I try to do a grab, it locks my machine up
> > hard.  Wrote the author of the driver, but apparently he's tied up with
> > other things.  I'd LOVE to see this thing working under Linux.
> 
> With the WinTV card, the bt848 driver worked fine, and gave a very good image.
> BUT, the image is pushed directly into the video memory somehow, and is very
> dependent on the graphics card you're using (mine's a Matrox Millenium). Many
> cards just won't work at all; there's a list on the Hauppauge web pages (not
> sure if this is specific to the Hauppauge cards). There are also problems (I 
> heard somewhere) with Pentium Pro chipsets not liking the board itself. 
> 
> We'd love to use this card for our project, but no-one has written a grabber
> for vic for this card type, as far as I know. Does anyone know of work that is
> ongoing to do this? Writing grabbers is a bit out of my expertise, though if
> no-one else writes the code, I may have to learn... :-)
> 
> Sorry if this is getting a bit off-topic, but there doesn't seem to be a bt848 
> mailing list (does there?).
> 
> Grace and Peace,
> Gary Stringer
> 
> http://www.ex.ac.uk/pallas/relate
> 
> ---
> Gary Stringer - Arts Computing Development Officer
> Pallas, Computing in the Arts at the University of Exeter
> mailto: G.B.Stringer@exeter.ac.uk
>
References: