Press [ and ] to slow down/speed up the video, and shift+[ to reset the playback rate
// ==UserScript==
// @name Youtube playback rate shortcut
// @namespace Violentmonkey Scripts
// @match *://youtube.com/*
// @match *://*.youtube.com/*
// @grant none
// @run-at document-idle
// @version 1.0
// @author qsniyg
// @description Press [ and ] to slow down/speed up the video, and shift+[ to reset the playback rate
// ==/UserScript==
(function() {
var playback_increment = 0.25;
var set_playback = function(diff) {
var video_el = document.querySelector("video.video-stream.html5-main-video");
if (video_el) {
if (diff === 0)
video_el.playbackRate = 1;
else {
var new_pr = video_el.playbackRate + diff * playback_increment;
if (new_pr > 0)
video_el.playbackRate = new_pr;
}
}
}
document.addEventListener("keydown", function(e) {
if (e.target && e.target.tagName === "INPUT" || e.target.tagName === "TEXTAREA")
return;
if (e.key === "[" && !e.shiftKey) {
set_playback(-1);
} else if (e.key === "]") {
set_playback(1);
} else if (e.shiftKey && (e.key === "[" || e.key === "{")) {
set_playback(0);
}
});
})();