Converting a video file into an animated gif on a Mac

README.md

Installing vid2gif command

1. brew install ffmpeg gifsicle
2. Paste the below vid2gif function into whatever file you store your aliases in. If you're using Oh My Zsh it's ~/.oh-my-zsh/custom/aliases.zsh.
3. Restart your terminal session or reload your shell environment, e.g. omz reload
4. Use the command with vid2gif --src ~/some-video.mov. You can optionally specify a target name, resolution or fps.

vid2gif.sh

function vid2gif() {
    src="" # required
    target="" # optional (defaults to source file name)
    resolution="" # optional (defaults to source video resolution)
    fps=10 # optional (defaults to 10 fps -- helps drop frames)

    while [ $# -gt 0 ]; do
        if [[ $1 == *"--"* ]]; then
                param="${1/--/}"
                declare $param="$2"
        fi
        shift
    done

    if [[ -z $src ]]; then
        echo -e "\nPlease call 'v2g --src <source video file>' to run this command\n"
        return 1
    fi

    if [[ -z $target ]]; then
        target=$src
    fi

    basename=${target%.*}
    [[ ${#basename} = 0 ]] && basename=$target
    target="$basename.gif"

    if [[ -n $fps ]]; then
        fps="-r $fps"
    fi

    if [[ -n $resolution ]]; then
        resolution="-s $resolution"
    fi

    runcommand="ffmpeg -i "$src" -pix_fmt rgb8 $fps $resolution "$target" && gifsicle -O3 "$target" -o "$target""

    echo ""
    echo ".------------------------."
    echo "|\\\\////////       90 min |"
    echo "| \\/  __  ______  __     |"
    echo "|    /  \|\.....|/  \    |"
    echo "|    \__/|/_____|\__/    |"
    echo "| A                      |"
    echo "|    ________________    |"
    echo "|___/_._o________o_._\___|"
    echo ""
    echo "ツ running >> $runcommand"
    echo "ツ ..."
    echo ""

    eval " $runcommand"
    osascript -e "display notification \"$target successfully converted and saved\" with title \"v2g complete\""
}