ffmpeg -i myvideo.avi -s 640x480 myvideo2.aviOr you can use a word for -s
ffmpeg -i myvideo.avi -s vga myvideo2.avi
Computer Tips - ffmpeg: How can I use ffmpeg to change the resolution of a video?
Date: 2012nov11
Update: 2017apr26
Product: ffmpeg
Keywords: dimensions
Q. ffmpeg: How can I use ffmpeg to change the resolution of a video?
A. Use the -s option like this: