The details: I'm running Ubuntu Netbook Remix on my netbook and used "webcam", cron, and a small shell script to take an image every 5 seconds. To my knowledge, cron only has a resolution of 1 minute which is why I had to write a shell script.
The .webcamrc file looks like this, yours may be a bit different:
device = /dev/video1
text = "tokala %Y-%m-%d %H:%M:%S"
width = 640
height = 480
delay = 8
wait = 0
rotate = 0
top = 0
left = 0
bottom = -1
right = -1
quality = 100
trigger = 0
once = 1
dir = /home/user/webcam
file = currentwebcam.jpg
local = 1
After capturing the image, I then copy it to a folder for later processing. The `date` command appends the date to the filename (this method can be improved but I through this together in Panera the morning we left.)
cp /home/user/webcam/currentwebcam.jpg "/home/user/webcam/`date`-webcam.jpg"
So, I ended up with just over 4000 images. To create the video, I used mencoder and set the frames per second to 5.
/usr/bin/mencoder "mf://*.jpg" -mf fps=5 -o videos/output.avi -ovc lavc -lavcopts vcodec=msmpeg4v2:vbitrate=800
A better webcam would yield a better result, but overall I'm pretty happy that my hacked together project produced any result at all.