Convert and optimise video to gif

gifenc.sh

#!/usr/bin/env bash

set -e

usage="usage: gifenc [input.mov] [output.gif] [resolution] [fps]"

if [ $# -ne 4 ]; then
  echo "$usage"
  exit 1
fi


palette="/tmp/palette.png"

filters="fps=$4,scale=$3:-1:flags=lanczos"

ffmpeg -v warning -i "$1" -vf "$filters,palettegen" -y "$palette"
ffmpeg -v warning -i "$1" -i $palette -lavfi "$filters [x]; [x][1:v] paletteuse" -y "$2"