video_helper.user.js

// ==UserScript==
// @name     video helper
// @version  1
// @grant    none
// @updateURL https://gist.github.com/valen214/0c9ddc51fccbb28c3da30ce914193ac1/raw/6e3ed5d4a36cb583f4b187ca2e83e9065047ddda/video_helper.user.js
//
// ==/UserScript==

/*
// @match https://www.youtube.com/*
*/

function clickSkip(){
	document.getElementsByClassName("ytp-ad-skip-button")[0]?.click();
}

	

function getVideo(){
	console.log("get video");
  let video = window.document.getElementsByTagName("video")[0];
	return video;
}

let video = getVideo();
	
setInterval(() => {
	console.log("ads check");
	let b = document.getElementById("skip-button:x");
	if(b){
		if(!video){
			video = getVideo();
		}
		video?.playbackRate = 10.0;
		setTimeout(() => {
			clickSkip();
		}, 1000);
	}
}, 2000);


let panel = document.createElement("div");
Object.assign(panel.style, {
  "width": "50px",
  "height": "50px",
  "background": "#aaf",
  "position": "fixed",
  "bottom": "0",
  "right": "0",
  "cursor": "pointer",
  "font-size": "25px",
  "display": "flex",
  "justify-content": "center",
  "align-items": "center",
});
panel.innerText = `${ video?.playbackRate }x`;
document.body.appendChild(panel);


panel.addEventListener("click", e => {
	if(!video) video = getVideo();
  let speed = Math.floor(video?.playbackRate) % 3 + 1;
	if(video) video.playbackRate = speed;
  panel.innerText = `${speed}x`;
});


console.log("script ran");