GIF creation with some optimization options

gifopt.sh

#!/bin/sh

# this was created for an admittedly specialized purpose but has some neat settings i want to remember

palette="/tmp/palette.png"
cropped="/tmp/cropped.mp4"

width="275"
filters="fps=15,scale=${width}:-1:flags=lanczos"

ffmpeg -y -i $1 -vf "crop=${width}:${width}:10:10" $cropped
ffprobe -v quiet -print_format json -show_format -show_streams  $cropped

ffmpeg -v warning -i $1 -vf "$filters,palettegen=stats_mode=diff" -y $palette

ffmpeg -i $cropped -i $palette -s 128x128 -ss 00:00:01.750 -t 00:00:00.965 -lavfi "$filters,paletteuse=dither=bayer:bayer_scale=5:diff_mode=rectangle" -y $2