[Ekiga-list] Ekiga should save settings (gamma, saturation) of my USB webcam

[Damien Sandras]

Le mercredi 14 mars 2007 à 18:53 +0100, Dieter Rogiest a écrit :
> I compiled and installed linux-uvc (uvcvideo module with v4l2 device driver) 
> with luvcview to view video of my USB Logitech Quickcam Fusion webcam.
> Everytime I reboot I have to use this command 
> "luvcview -d /dev/video0 -f jpg -s 352x288"
> and set gamma down, then set gamma up (from 220 to 100 to 220: the image 
> starts dark, to up the gamma I first have to set it to 100 and then back to 
> 220, then the image is ok)
> and saturation up from 32 to 40 for better color
> and anti-flicker to 50 Hz (no difference)
> and also auto-exposure to 1 and auto-white balance to 1.
> 
> After exiting luvcview I open Ekiga and "display images from my camera 
> device": I see the same image quality that I've set in luvcview.
> Only after that Ekiga can be used for video-conferencing.
> 
> If I forget to first "display images from my camera device" and try an echo 
> test to 500 at ekiga.net I get no video output from my webcam and I'm no longer 
> able to get video from my webcam: 
> luvcview then prints this out:
> "Video driver: x11
> A window manager is available
> video /dev/video0
> Unable to set format: 5.
>  Init v4L2 failed !! exit fatal"
> Only solution I know to get back my video is to reboot the entire system 
> (annoying, so MS Win 3.1.). Anybody who knows how to get that v4l2 driver 
> working again without rebooting?
> 

I'm cc'ing Luc Saillard, an expert in terms of video and V4L2 ;-)
-- 
 _      Damien Sandras
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