Are there any programs that would let me specify parts of a video-file (avi, mpeg, mp4, ...) and take "snap-shots" every so-and-so second/minute, and store it as a series of image-files (eg. jpeg)? For example select part of a movie between 0h45m and 1h00m, and take a "snap-shot" every 30 second.
It may be part of or a plug-in for a video-player (eg. VLC)... the point is that I need something that takes snap-shots automatically, not maually.
Further more, are there any good programs for turning such a series of image-files into an animated-GIF or-PNG file? (It would of course be a bonus if the snap-shot program could optionally save the snaps as animated GIF/PNG.)