Convert mp4 video to optimized gif

mp4_to_gif.sh

#!/bin/bash

# https://www.bannerbear.com/blog/how-to-make-a-gif-from-a-video-using-ffmpeg/
# Mac OSX
# brew install ffmpeg
# brew install gifsicle

echo "Extracting the palette."
ffmpeg -i $1 -filter_complex "[0:v] palettegen" palette.png

echo "Converting from mp4 to gif."
ffmpeg -i $1 -i palette.png -filter_complex "[0:v] fps=10,scale=320:-1 [new];[new][1:v] paletteuse" $1.gif

echo "Optimizing gif."
gifsicle -O3 --lossy=100 $1.gif -o $1.optimized.gif

echo "Generated."
echo $1.optimized.gif