Simple command to turn videos into GIFs

v2gif.sh

#!/bin/bash

v2gif() {
    # Based on https://engineering.giphy.com/how-to-make-gifs-with-ffmpeg/
    ffmpeg=""
    filter=""
    palettegen="palettegen"
    paletteuse="paletteuse"

    while getopts "w:f:is:t:" opt; do
        case ${opt} in
            # Start offset (seconds)
            s) ffmpeg="${ffmpeg} -ss ${OPTARG}";;
            # Duration (seconds)
            t) ffmpeg="${ffmpeg} -t ${OPTARG}";;
            # Width (height: -1 = keep exact aspect ratio, -2 = round to even number (important for many video codecs))
            w) filter="scale=w=${OPTARG}:h=-2,$filter";;
            # FPS
            f) filter="fps=${OPTARG},$filter";;
            # Insane mode (256-colors per frame)
            i)
                palettegen="${palettegen}=stats_mode=single"
                paletteuse="${paletteuse}=new=1"
            ;;
        esac;
    done

    shift $(($OPTIND - 1));

    ffmpeg ${ffmpeg} -i "$1" -filter_complex "[0:v] ${filter}split [a][b];[a] ${palettegen} [p];[b][p] ${paletteuse}" "$1.gif"
}