Encode GIFs using mpv's A-B loop and ffmpeg.

encode-gif

#!/usr/bin/zsh

start="$1"
end="$2"
input="$3"

outdir="/home/aliceklipper/Pictures/Screenshots/MpvGifs/"

basename="${input##*/}"

output="${outdir}${basename%.*} [${start} - ${end}].gif"

cut="/tmp/cut.mp4"
shakal="/tmp/shakal.mp4"
palette="/tmp/palette.png"

filters="fps=12,scale=w=min(480\,iw):-1:flags=lanczos"

echo "[encode-gif] Start:  ${start}."
echo "[encode-gif] End:    ${end}."
echo "[encode-gif] Input:  ${input}."
echo "[encode-gif] Output: ${output}."

echo

/usr/bin/mkdir -p "${outdir}"

echo "Cutting..."
/usr/bin/ffmpeg -v warning -i "${input}" -ss "${start}" -to "${end}" -an -c:v libx264 -preset ultrafast -crf 0 -threads 4 -y "${cut}"

echo "[encode-gif] Shakaling..."
/usr/bin/ffmpeg -v warning -i "${cut}" -vf "${filters}" -c:v libx264 -preset ultrafast -crf 0 -threads 4 -y "${shakal}"

echo "Generating the palette..."
/usr/bin/ffmpeg -v warning -i "${shakal}" -vf "palettegen" -y "${palette}"

echo "[encode-gif] Encoding..."
/usr/bin/ffmpeg -v warning -i "${shakal}" -i "${palette}" -lavfi "paletteuse=dither=bayer:bayer_scale=3" -y "${output}"

echo "[encode-gif] GIF encoding completed."

encode-gif-mpv-wrapper

#!/usr/bin/zsh

start="$1"
end="$2"
path="$3"

/usr/local/bin/encode-gif "${start}" "${end}" "${path}"

input.conf

g run "/usr/local/bin/encode-gif-mpv-wrapper" "${=ab-loop-a}" "${=ab-loop-b}" "${path}"