Help with video codec in ffmpeg
I'm trying to make a video from a series of images. Using
ffmpeg -f image2 -i image%d.jpg video.mpg
works fine, except for the fact that the resulting video is about 3 seconds long, when ideally it would be about 20 seconds long.
When I try to limit the framerate with -r, I get a red warning that "mpeg1/2 does not support 5/1 fps"
I have very little idea what I'm doing. Is there some alternative way to limit the framerate, or a codec that supports very low framerates? Thanks for any help.