Hi Douglas, Piers, All Thanks for you feedback with regard to webcams on linux.
In the end I went with a "Logitech QuickCam Pro 4000" The system setup is Fedora Core 5 with AG3 and AG2.4 installed according to the following tutorial by Jason Bell http://agcentral.org/help/tutorial/aginstallonfc5/ To get the web cam to work i just downloaded a driver snapshot from http://www.saillard.org/linux/pwc/snapshots/pwc-v4l2-20060627-042701.tar.bz2 make make install modprobe pwc or cd to the dir with "pwc.ko" and insmod -f ./pwc.ko from memory Chris Kendrick VPAC To get it to work i just On Thu, 8 Jun 2006, Piers O'Hanlon wrote: > Hi Doug, > > Great to hear you're working on the code. > >> My code is more or less based on video/grabber-v4l2.cpp from SVN UCL >> vic. The main issue the SVN code is that it only supports the YUYV pixel >> format and not YUV420 common with webcams. Ideally I want to get it to >> support all the pixel formats that the V4L version did. >> > Yes this true - it's something I've been meaning to fix (there was > some code from MASH that did a slighly better job). > >> There were other issues with incorrectly initialised ioctl arguments >> with the PWC V4L2 driver and capture size. >> > Ah ok. > >> > There are still a number of drivers in the kernel (including some for >> > webcams) that are still video4linux version one only - Now all video >> > capture devices are listed as /dev/video - one has to open the devices >> > and see which ones can be opened with V4L1 or V4L2 - thus the UCL >> > version compiles both drivers. >> >> I'm currently compiling both, but the AGTk sets the VIC_DEVICE env >> variable to let AG vic know which capture device it should use. >> >> So in grabber-v4l2.cpp I currently have: >> #ifdef HAVE_V4L2 >> const char *myDev = getenv("VIC_DEVICE"); >> >> and grabber-video4linux.cpp I have a ifndef version of the above. >> >> Another approach may need to be used instead of the VIC_DEVICE env >> variable, e.g. using the so called vic device nickname. >> > oh ok - I guess another way would be to pass and device as a common > line argument - or pick it up from the resources - like the most of > the other config stuff. > >> > We are in the process having the AG features ported into the UCL >> > version of vic - either by ANL or by UCL, we also plan to integrate >> > work from NCHC vic - under our SUMOVER project - as mentioned by me at >> > the recent AG retreat. >> > >> > We would welcome any developer work on vic - we are keen to bring on >> > board any active developers and potentially provide commit access to >> > the SVN repository. >> >> I was actually going to contact you guys about merging my Mac TCL/Tk >> Aqua AG vic port (in ANL's CVS) to UCL vic, but haven't gotten around to >> it yet. >> > This would be great - we'd like to have the aqua stuff and It would > also be good to wrap in the video capture code for OSX (do have a link > to the src of that grabber?) > > We can create an SVN account on our subversion repository if you would like. > > Thanks alot, > > Piers. > >> Cheers, >> Doug. >> >> >> > >
