Ask HN: Is it possible to capture webcam output and store directly on server?

Hey.

I'm just wondering if it is possible to capture the output of a webcam and store it directly to the server. I can then run a cron script to encode the video that is not a problem, but can the actual capture be done on a website (using Flash for example), and saved through PHP?

Has anyone done this?

I'm thinking similar software to what ChatRoulette uses, but not for live streaming but instead saving as files on the server for encoding later.