Thanks Thomas and Michael for your replies. > From: "Thomas Hargrove" <ciagon@xxxxxxxxxxxxxxx> > Date: Wed, 27 Dec 2000 07:04:49 -0800 > > > [root@chomp /root]# xawtv > > This is xawtv-3.24, running on Linux/i686 (2.2.16-22) > > visual: id=0x20 class=4 (TrueColor), depth=16 > > Xlib: extension "XVideo" missing on display "chomp:0.0". > > The app-defaults file is not correctly installed. > > Your fault (core dumped) > > What happens with no xawtv file? Same thing - I tried that first - then as it told me to install a app-defaults file I did so. > Side Note: XVideo is not required. It is present in newer XFree86's > I think. Not much use if -noxv doesn't turn it off though. Perhaps the above message means that it is automatically disabled and the seg fault comes from something unrelated. > > But what really appeals in terms of functionality is bttvgrab. I'm > > running version 0.15.10 and from the man page I'd like to run > > The -t never works for me either. Ah, good to know. > > is promising, I get what looks like an out-of-sync black and white > > picture, probably aliased, but defintely related to the video source. > > However, the frame counter suggests that I'm dropping half the frames > > (true even if I record to file or record in a simple, small format). > > Keep in mind that you first have to setup your card before you can capture. > This means setting the norm and tuning in a channel. I use Xawtv for this. > That is most likely the cause of this problem. I do have a stable picture with wintv (which I think I used to tune it in). > BTW: From personal expreience I find that streamer (part of the xawtv > package) works better than bttvgrab. Unfortunately, I can not get > either program to keey audio sync. Well, that's interesting, although audio sync is very important for me. > From: "W. Michael Petullo" <mike@xxxxxxxx> > > > ... > > > > Side Note: XVideo is not required. It is present in newer XFree86's > > I think. > > > > ... > > Red Hat offers the XVideo extension as a separate rpm. 7.0 is XFree86 4.x > based, so the X server does support the XVideo extension. Thanks. Knowing this I found that it was already installed in /usr/X11R6/lib/modules/drivers/linux, so I set ModulePath in XF86Config accordingly and now instead of: v4l: Unknown error loading module I can now get (from Load "v4l_drv.o"): v4l_drv.o: ELF file's phentsize not the expected size So some progress. Am I hoping for too much here to get Linux to act as a video recorder? Tony Robinson
