plug ethernet, webcam, into compute module. done.
missing: daemon to take frames from webcam, encode into an open video codec, and send over network.
grab frames with http://linuxtv.org/downloads/v4l-dvb-apis/capture-example.html
$ time sudo ./a.out -c 100 -u .................................................................................................... real 0m7.236s
14 frames/sec 1280×720