Re: [SLUG] webcam image control

From: Eben King (eben01@verizon.net)
Date: Wed Dec 16 2009 - 19:56:30 EST


On Sun, 6 Dec 2009, Chuck Hast wrote:

>>> When you plug the cam into the USB (I assume it is USB)
>>
>> It is, 17a1:0128 .
>>
>>> how does it show up in the /dev? Mine shows up as /dev/video0,
>>
>> Mine too.

> Ok, it has found the cam and probably installed the proper drivers for
> it. Here is the old fall back, which I what I think most all of us use when
> we are testing analog cams out, do a apt-get on xwtv and fire it up, I
> just put it on one of my Ubuntu systems to check it out and when I
> fired it up I it had already found the camera and was showing me ugly
> pix of my self...
> XAWTV is a very basic prog that just handles a video stream and puts
> it on your screen. Start with it, if you can get that to work then you will
> be able to work through the rest of it.
> If it behaves yours like it does on mine when you start it up you will get
> a video window and a welcome screen. If you want to twiddle the knobs
> you will need to right click on the video screen, that will bring up your
> control screen. XAWTV can read video files it can also read and control
> a TV tuner card, but the best thing is it is very easy to get going with
> most any analog camera either USB or frame grabber. In your case
> you are using a USB cam.

xawtv and vlc (both 0.8.6 here and 1.0.2 in the VM) give me a all-black
window, and ekiga (on the laptop) gives me a window full of light-responsive
garbage in both v4l and v4l2, but I got luvcview to work. The interface is
pretty Spartan though, and it doesn't give me _any_ choice about saved video
parameters -- when I say so, a 320x240 MJPEG file is saved to ./video.avi .
$cwd isn't writable? Errors. Lots of them. At least it saves. Any ideas
for better-looking replacements that might work? gspca is version
gspca-ba8d6bf077aa, released 2009-12-15 noonish, and "uname -r" returns
2.6.26.5 (here, self-compiled) / 2.6.31-16-generic (VM) / 2.6.24-26-generic
(laptop) kernel.

-- 
"On two occasions I have been asked, -- 'Pray, Mr Babbage, if you put
into the machine wrong figures, will the right answers come out?'
... I am not able rightly to apprehend the kind of confusion of ideas
that could provoke such a question." -- Charles Babbage, 1864.
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