mov2gif.sh

#!/bin/sh

# Creates an animated gif from video using an explicit color pallete with space handling
# usage: mov2gif input.mov [output.gif]

in="$1"
out="${2:-${in%.*}.gif}"

# tweak fps / scale here
fps=12
width=600

ffmpeg -loglevel error -hide_banner -i "$in" \
  -filter_complex "
      colorspace=all=bt709:iall=bt709:fast=0,format=rgb24,
      fps=${fps},scale=${width}:-1:flags=lanczos,
      split [main][pal];
      [pal] palettegen=stats_mode=full [p];
      [main][p] paletteuse=dither=sierra2_4a
  " \
  -y "$out"