Script to monitor clipboard for a new Youtube URL and plays the video when the URL does not match the existing URL. Also does not run when an mpv instance is already running.

youloop

#!/bin/bash
function loop(){
	sleep 2
	url=`xclip -selection clipboard -o` 
	if [[ `cat /tmp/youtubeurl` == "$url" ]]
	then
		return
	fi
	mpv=`pgrep mpv`
	if [[ $url == *"youtube"* && $mpv == "" ]]
	then
		echo "$url" > /tmp/youtubeurl
		mpv --hwdec vaapi --ytdl-format=bestvideo[ext=mp4]+bestaudio[ext=m4a] "$url"
	fi
}
while(true)
do
	loop
done