FFmpegVideoFilters

This will be a dumping ground of snippets to use with FFmpeg's video filters.

-vf scale=w=width:h=height
-vf crop=w=width:h=height:x=xoffset:y=yoffset

To convert from 4k (4096x2160) to full hd (1920x1080) cropping off the left and right evenly, use

-vf crop=w=3840:h=2160:x=128:y=0 -vf scale=w=1920:h=1080