Script for creating GIFs from files created by Pop_OS!'s screen recording functionality

create_gif.sh

#!/bin/bash

# Requirements:
# - ffmpeg
# - xdotool

MAX_W=720

read -p "Press a key to select top left corner of region"
topleft_x=$(xdotool getmouselocation | awk '{print $1}' | cut -d':' -f 2)
topleft_y=$(xdotool getmouselocation | awk '{print $2}' | cut -d':' -f 2)
read -p "Press a key to select bottom right corner of region"
bottomright_x=$(xdotool getmouselocation | awk '{print $1}' | cut -d':' -f 2)
bottomright_y=$(xdotool getmouselocation | awk '{print $2}' | cut -d':' -f 2)

w=`expr $bottomright_x - $topleft_x`
h=`expr $bottomright_y - $topleft_y`

file=$(ls --sort=time $HOME/Videos | grep Screencast | head -n1)

scale=$w

if [[ $w -gt $MAX_W ]]; then
    scale=$MAX_W
fi

ffmpeg -i "$HOME/Videos/$file" -filter:v "crop=$w:$h:$topleft_x:$topleft_y,fps=10,scale=$scale:-1:flags=lanczos,split[s0][s1];[s0]palettegen[p];[s1][p]paletteuse" "$HOME/Videos/$file.gif"