Hi Raúl,
On Sunday 24 February 2008, Raúl Sánchez Siles wrote:
> Hello All:
>
> I own a laptop with a webcam supported by the uvc driver. I can use it
> for videoconference successfully but I fail to take an single jpg photo. I
> use luvcview 0.2.1 in order to have it, with no success.
>
> I have just built the latest svn driver (r188), with same result. I'm on
> a Debian unstable distro using 2.6.24.2 for and Core2 Duo laptop. This is
> the output of luvcview:
>
> luvcview version 0.2.1
> Video driver: x11
> A window manager is available
> video /dev/video0
> Unable to set format: 22.
> Init v4L2 failed !! exit fatal
>
> Same result for luvcview -w, -c, -C and -S . -g fails since direct I/O is
> not supported.
>
> What does this message mean? Is there a way I could get a simple
> screenshot using the driver. Pointers are appreciated.
>
> Only -f yuv worked, but well, what about the others?
Your camera supports YUV only, so there is no other format :-)
> I've also tried some other parameters. This is their output:
>
> luvcview -L
> luvcview version 0.2.1
> Video driver: x11
> A window manager is available
> video /dev/video0
> /dev/video0 does not support read i/o
> { pixelformat = 'YUYV', description = 'YUV 4:2:2 (YUYV)' }
> { discrete: width = 640, height = 480 }
> Time interval between frame: 1/30, 1/20, 1/15, 1/10, 1/5, 1/1,
> { discrete: width = 352, height = 288 }
> Time interval between frame: 1/30, 1/20, 1/15, 1/10, 1/5, 1/1,
> { discrete: width = 320, height = 240 }
> Time interval between frame: 1/30, 1/20, 1/15, 1/10, 1/5, 1/1,
> { discrete: width = 176, height = 144 }
> Time interval between frame: 1/30, 1/20, 1/15, 1/10, 1/5, 1/1,
> { discrete: width = 160, height = 120 }
> Time interval between frame: 1/30, 1/20, 1/15, 1/10, 1/5, 1/1,
> { discrete: width = 1280, height = 800 }
> Time interval between frame: 2/15, 1/5, 1/1,
> { discrete: width = 1280, height = 1024 }
> Time interval between frame: 2/15, 1/5, 1/1,
Best regards,
Laurent Pinchart
_______________________________________________
Linux-uvc-devel mailing list
[email protected]
https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
