I tried to do this with ffmpeg but failed (I also failed making animated GIFs). Is there a simple to use free program (command line is okay) to convert videos to animated PNGs?
As long as it doesn't dump the video frame by frame into PNG files and create a monster size PNG then I should like it. (I didnt see an option to make ffmpeg not dump every frame)
From the wiki http://en.wikipedia.org/wiki/APNG