I've added proxy support. It supports http, socks4, socks4a and socks5 proxies.
Code:
-p, --proxy <proxy>
Examples:
-p
http://123.123.123.123:8080
-p socks4://123.123.123.123:8080
-p socks5://username:password@123.123.123.123:8080
I haven't done a lot of testing, because it took me two hours to find a free proxy that actually worked and was fast enough to download a webcam stream.
https://www.mediafire.com/folder/7s4u7jf8ckrk6/CamDump