resize mp4
Problem
I needed to shrink the size of an mp4 video.
The mp4 my cell phone produced was 1920x1080 mp4. (flipped sideways somehow)
It was way too big for the documentation files.
Solution
Using this command I reduced the size to 1/4 what is was.
ffmpeg -i ../../incoming_images/lavar_frijoles.mp4 -vf "scale=270x480, setsar=1" -c:v libx264 -acodec copy lavar_frijoles.mp4