Converts a .mov file to a gif

mov_to_gif.sh

#!/bin/sh

scale=400

while [ -n "$1" ]; do
  case "$1" in
  -s) 
    scale="$2" 
    shift 
    shift
    ;;
  -*) 
    echo "Option $1 not recognized"
    shift
    ;;
  *) break ;;
  esac
done

if [ $# != 2 ]; then
  echo "Invalid params"
  echo "Usage: mov_to_gif.sh [-s <width in pixels>] <input file> <output directory>"
  exit 1
fi

if [ ! -d $2 ]; then
  echo "Creating dir $2"
  echo
  echo
  mkdir $2
fi
echo "Creating frames from .mov file..."
echo
echo
ffmpeg -i "$1" -vf scale=$scale:-1 -r 10 $2/out%3d.png
echo
echo "Creating gif from frames..."
echo
convert -delay 8 -loop 0 $2/out*.png $2/animation.gif
echo "Deleting frames"
rm $2/*.png
echo "Conversion done"