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Newt300 / HTML5 Video Playback Speed Control Keyboard Shortcut International

// ==UserScript==
// @name        HTML5 Video Playback Speed Control Keyboard Shortcut International
// @namespace   HTML5VideoPlaybackSpeedControlKeyboardShortcutInternational
// @description Add keyboard shortcuts to decrease (CTRL+,), increase (CTRL+.), and reset (CTRL+;) HTML5 video playback rate. Available playback speeds are between 0.25 to 2.0 inclusive in 0.25 increments. Speed of 1.0 is used when resetting playback speed. Note: the video playback speed menu selection on YouTube will not be affected.
// @version     1.0.1
// @author      SThorn
// @copyright   2018, Newt300 (https://openuserjs.org/users/Newt300)
// @updateURL   https://openuserjs.org/meta/Newt300/HTML5_Video_Playback_Speed_Control_Keyboard_Shortcut_International.meta.js
// @include     http://*/*
// @include     https://*/*
// @grant       none
// @license     MIT
// ==/UserScript==

addEventListener("keydown", function(ev) {
  var ele = document.querySelector("VIDEO"), rate;
  if (ele && ev.ctrlKey) {
    rate = rate = ele.playbackRate;
    if ((ev.key === ",") || (ev.key === "б") || ev.keyCode === 188) {
      rate -= 0.25;
      if (rate < 0.25) rate = 0.25;
    } else if ((ev.key === ".") || (ev.key === "ю") || ev.keyCode === 190) {
      rate += 0.25;
      if (rate > 2) rate = 2;
    } else if ((ev.key === ";") || (ev.key === "ж") || ev.keyCode === 186 || ev.keyCode === 59) {
      rate = 1;
    }

    rate = Math.trunc(rate * 4) / 4;
    ele.playbackRate = rate;
  }
});