Video capture on Geforce

Video capture on Geforce

Post by Chise » Mon, 18 Sep 2000 04:00:00

Are there any geforce drivers supporting video capture for the cards that
have it ?
I'm guessing that asus don't release linux drivers for their geforce cards



1. Video capture woes (GeForce 4 Ti 4200)

Hey, everyone! I've been mucking around, trying to get all of my
hardware working properly under Linux/X, and at this point there only
seems to be one major problem. Hell, I'm not even sure if anything can
be done about it, but since I haven't seen it referenced anywhere else
in my searching, I thought I'd ask if anyone has any suggestions as to
how the situation can be addressed (if it can be, that is...).

I have a Gainward NVIDIA GeForce 4 card (GF4 Ti4200 AGP, to be exact),
running with version 1.0.4363 of NVIDIA's drivers. All of this is well
and good, as far as I can tell, but my problem arises in trying to use
the video-in capabilities of the card. I've dutifully installed and
configured the rivatv module, and things do seem to be working, more
or less, on that front.

The problem is that the image displayed is very obviously interlaced.
To the point that its practically unwatchable. So, I did my homework,
and I tried out a number of deinterlacing solutions, including
Xaw-Deinterlace (which isn't ideal, as motv tends to crash when I
access the menu, more often than not), and tvtime. The problem here is
that grabdisplay is ridiculously slow. Motion is choppy and the image
jumpy. I'm not entirely sure why this is. My machine is hardly a
lightweight in terms of raw power: Athlon XP 2200+ CPU, 512MB RAM, and
the aforementioned graphics card. I've tried everything, from turning
on DMA support in the rivatv drivers, making sure the permissions for
things like /dev/rtc and /dev/v4l/video0 are correct, and so on.
Nothing seems to have a positive effect.

I was wondering if anyone else has struggled along these lines, and
would be willing to offer any helpful advice... :-) Thank you for your

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