I can create a mpg video using this line
ffmpeg -f image2 -i 100%03d0.png movie.mpg
But If I try creating an mp4 video I get a video with a black screen.
ffmpeg -f image2 -i 100%03d0.png movie.mp4
My directory with figures looks like: 1000010.png,1000020.png,...1001260.png