Animating images

Create an animation (movie) from a sequence of images:

ffmpeg -f image2 -r 1 -i filename-%04d.png -s WxH -f mpeg -r 24 foo.mpg

• replace WxH with width and height (ex: 800x600)
• The first -r1 makes the video 1 fps (input), so you can speed up/down as necessary.
• mpeg format seems to work okay with powerpoint.