Xvidcap is a tool that can capture movement on an X11 display. It works in two distinct modes:
It can capture to single frames (like a number of jpeg images) or it can encode the captured frames to a video on-line.

It is intended to be a standards-based alternative to tools like Lotus ScreenCam for UNIX platforms.
On-line encoding is done through FFMPEG and also allows for audio grabbing on OSS compatible systems.

Author: Karl H. Beckers