Thanks Doug, it looks like the closest YUYV mode is 176x144.
Is there a way I can use the MJPEG stream?
Otherwise, my next question is... are there recommended USB cam's for Linux?
[alf@ag-piggy ~]$ 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 = 'MJPG', description = 'MJPEG' }
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 800, height = 600 }
Time interval between frame: 1/15, 1/10, 1/5,
{ pixelformat = 'YUYV', description = 'YUV 4:2:2 (YUYV)' }
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/15, 1/10, 1/5,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/15, 1/10, 1/5,
Cheers, Andrew
2008/7/21 Douglas Kosovic
<dougl...@itee.uq.edu.au<mailto:dougl...@itee.uq.edu.au>>:
Hi Andrew,
Is anyone using a Logitech Quickcam Pro 9000 USB camera under Linux and
been
able to get a VIC image larger than 176x144 (QCIF)?
If I run 'luvcview' I can get something that resembles 352x288/CIF
although
i'm not sure what size it is exactly!
Could you provide the output of 'luvcview -L' which list the available
resolutions and pixelformats, I've appended the ouput from a Creative UVC
webcam at the bottom of this email.
I've built the latest uvcvideo kernel module source from
http://linux-uvc.berlios.de/
vic-2.8ucl1.4.0-0.1.20080714svn.fc8
V4L2: start
V4L2: format cifdecimate: 2
V4L2: setting input port to 0
V4L2: failed to set format! requested 352x288, got 176x144
It's the UVC driver, not VIC which selects 176x144 as the nearest resolution
to 352x288, hopefully the 'luvcview -L' output will explain why.
Cheers,
Doug
Device information:
Device path: /dev/video1
/dev/video1 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, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 1280, height = 960 }
Time interval between frame: 2/15, 1/5,
{ discrete: width = 1600, height = 1200 }
Time interval between frame: 1/5,
{ pixelformat = 'MJPG', description = 'MJPEG' }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 1280, height = 960 }
Time interval between frame: 1/10, 1/5,
--
"Never put off until tomorrow what you can do the day after tomorrow." Mark
Twain
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