gif.sh

gif.sh

gif() {
    if [ ! "$(ffmpeg -version)" ]; then
        echo "It looks like ffmpeg isn't installed. Try installing with Homebrew (e.g., brew install ffmpeg)."
        return $?
    fi

    if [ -z $1 ]; then
        echo "Usage: "
        echo "  gif /path/to/source.mov [width in pixels (640 default)] [frames per second (12 default)]"
        return 0
    fi

    ffmpeg -y -i ${1} -filter_complex "[0:v] palettegen,scale=${2:-640}:-1" ${1}.png && \
    ffmpeg -y -i ${1} -filter_complex "[0:v] fps=${3:-12},scale=w=${2:-640}:h=-1,split [a][b];[a] palettegen [p];[b][p] paletteuse" ${1}.gif && \
    open -R ${1}.gif
}

Usage:

$ gif ~/path/to/some.mov 
$ gif ~/path/to/some.mov 640
$ gif ~/path/to/some.mov 640 12