Hi there, I got a very cheap webcam in order to test some CV stuff. But as the cam didn't cooperate I started researching why and finally encountered this mailing list.
The first thread I saw was: http://lists.berlios.de/pipermail/linux-uvc-devel/2008-December/004410. html I tried setting quirks=2 as mentioned there et voila I got a beautiful picture with VLC and cheese. (Didn't try other programs yet.) Now there are some things I don't understand: 1. When I do a `cat /dev/video1` while the cam is connected the shell tells me: "cat: /dev/video1: No such device" If the cam is not connected the shell returns "cat: /dev/video1: No such file or directory" 2. I tried some code-snippets from http://www.c-plusplus.de/forum/viewtopic- var-p-is-1626217.html but they all either abort with the "No such device" error when they try to "read(...)" or return a picture with an almost black picture and very few mixed colored pixels at the top. 3. When starting cheese from shell it frequently says: "libv4l2: error converting / decoding frame data: v4l-convert: error parsing JPEG header: Not a JPG file ?" but I get a picture. Next thread I saw was: http://lists.berlios.de/pipermail/linux-uvc-devel/2009-April/004741.html That is the one I'm about to response to. You, Laurent, said you need some consecutives frames. When you give me a code-snippet to capture some I'll try. (I don't know how to as the snippets mentioned above IMHO don't work). Regards, Marcel _______________________________________________ Linux-uvc-devel mailing list [email protected] https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
