make image from movie proportional when scaled?

Question

What would be the best way to take a screenshot with ffmeg ( say the first frame of movie ) and then make a 200x200 image from it?

Im not sure what method to look for in docs or api to accomplish these tasks.

EDIT #1

Seems that:

ffmpeg -i 001.mp4 -ss 3 -f image2 -vframes 1 -s 600x600 output.png

Does convert to an image, but... this is not scaled (squased together) what would be the correct way to have the image proportional?

Answer 1

Copied and modified from elsewhere on Stackoverflow...

You want something like this: ffmpeg -i video filename -vcodec video codec -vframes 1 -an -s 200x200 -f rawvideo output.jpg