[PlanetCCRMA] Video4Linux

Brian Fahrlander Brian@Fahrlander.net
Mon Nov 10 14:46:01 2003

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On Mon, 2003-11-10 at 14:55, Brad Kligerman wrote:
> Fernando/
> $ cat /proc/asound/cards
> 0 [I82801CAICH3   ]: ICH - Intel 82801CA-ICH3
>                      Intel 82801CA-ICH3 at 0x1c00, irq 9
> 1 [Controller     ]: USB-Audio - UC-16 USB MIDI Controller
>                      Evolution Electronics Ltd. UC-16 USB MIDI
> Controller at usb-00:1d.1-2
> 2 [U0x46d0x8b0    ]: USB-Audio - USB Device 0x46d:0x8b0
>                       at usb-00:1d.1-1
> Here you can see 0/the sound card, 1/the midi controller and 2/the
> webcam (Logitech Quickcam Pro 3000-2, Phillips compatible). But, when I
> use xautv, for example, to see if the cam is working, it gives me the
> message:
> $ xawtv
> This is xawtv-3.81, running on Linux/i686 (2.4.22-6.ll.rh90)
> /dev/video0 [v4l]: no overlay support
> When I try to use the cam, with either xawtv or more importantly in PD
> (with the PDP libraries) the video window is green. This seem to me to
> be the _No overlay support_.

    I'm not sure that's the problem; mine isn't using any USB, and that
might make all my help moot, but:

    I have an internal TV capture card with a webcam (I use GnomeMeeting
and/or TeamSpeak when possible) and I have a problem with device names.=20
I have the TV on /dev/video0 ('cause I'll never have more than one) and
the webcam(s) on /dev/video0+n since there could plausibly be more.

    To do this, I have something in /etc/rc.local to insmod the video
card, and whenever I use the TV, I have an icon to specify the device:

    xawtv -c /dev/video1

    Look closely; it might not be a matter of overlay- that's just one
of many diagnostics that you can get if it's on the wrong device.  Give
it a shot; maybe it'll help, aye?

Brian Fahrl=C3=A4nder                     Researcher, Conservative, and Tec=
Evansville, IN                                    http://Fahrlander.net
ICQ  5119262

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