Automatically select your desired video quality and select premium when posibble. (Support YouTube Desktop & Mobile)
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// ==UserScript==
// @name Youtube Quality HD
// @version 1.4.0
// @description Automatically select your desired video quality and select premium when posibble. (Support YouTube Desktop & Mobile)
// @run-at document-body
// @match https://www.youtube.com/*
// @match https://m.youtube.com/*
// @exclude https://*.youtube.com/live_chat*
// @exclude https://*.youtube.com/tv*
// @icon https://www.google.com/s2/favicons?sz=64&domain=youtube.com
// @grant GM.getValue
// @grant GM.setValue
// @grant unsafeWindow
// @author Fznhq
// @namespace https://github.com/fznhq
// @homepageURL https://github.com/fznhq/userscript-collection
// @license GNU GPLv3
// ==/UserScript==
// Icons provided by https://uxwing.com/
(async function () {
"use strict";
/** @type {Window} */
const win = unsafeWindow;
const body = document.body;
const isMobile = win.location.hostname.includes("m.youtube");
const listQuality = [144, 240, 360, 480, 720, 1080, 1440, 2160, 2880, 4320];
const defaultQuality = 1080;
let manualOverride = false;
let isUpdated = false;
let settingsClicked = false;
let maybeChangeQuality = false;
let subMenu = false;
/** @namespace */
const options = {
preferred_quality: defaultQuality,
preferred_premium: true,
updated_id: "",
};
const icons = {
premium: `{"svg":{"viewBox":"-12 -12 147 119"},"path":{"fill":"white","d":"M1 28 20 1a3 3 0 0 1 3-1h77a3 3 0 0 1 3 1l19 27a3 3 0 0 1 1 2 3 3 0 0 1-1 2L64 94a3 3 0 0 1-4 0L1 32a3 3 0 0 1-1-1 3 3 0 0 1 1-3m44 5 17 51 17-51Zm39 0L68 82l46-49ZM56 82 39 33H9zM28 5l13 20L56 5Zm39 0 15 20L95 5Zm33 2L87 27h28zM77 27 61 7 47 27Zm-41 0L22 7 8 27Z"}}`,
quality: `{"svg":{"viewBox":"-12 -12 147 131"},"path":{"fill":"white","fill-rule":"evenodd","d":"M113 57a4 4 0 0 1 2 1l3 4a5 5 0 0 1 1 2 4 4 0 0 1 0 1 4 4 0 0 1 0 2 4 4 0 0 1-1 1l-3 2v1l1 1v2h3a4 4 0 0 1 3 1 4 4 0 0 1 1 2 4 4 0 0 1 0 1l-1 6a4 4 0 0 1-1 3 4 4 0 0 1-3 1h-3l-1 1-1 1v1l2 2a4 4 0 0 1 1 1 4 4 0 0 1-1 3 4 4 0 0 1-1 2l-4 3a4 4 0 0 1-1 1 4 4 0 0 1-2 0 5 5 0 0 1-1 0 4 4 0 0 1-2-1l-2-3a1 1 0 0 1 0 1h-3v3a4 4 0 0 1-1 2 4 4 0 0 1-1 1 4 4 0 0 1-1 1 4 4 0 0 1-2 0h-5a4 4 0 0 1-4-5v-3l-2-1-1-1-2 2a4 4 0 0 1-2 1 4 4 0 0 1-1 0 4 4 0 0 1-2 0 4 4 0 0 1-1-1l-4-4a5 5 0 0 1 0-2 4 4 0 0 1-1-2 4 4 0 0 1 2-3l2-2v-1l-1-2h-2a4 4 0 0 1-2-1 4 4 0 0 1-1-1 4 4 0 0 1-1-1 4 4 0 0 1 0-2v-5a4 4 0 0 1 1-2 5 5 0 0 1 1-1 4 4 0 0 1 1-1 4 4 0 0 1 2 0h3l1-1v-2l-1-2a4 4 0 0 1-1-1 4 4 0 0 1 0-2 4 4 0 0 1 0-2 4 4 0 0 1 1-1l4-3a5 5 0 0 1 2-1 4 4 0 0 1 1-1 4 4 0 0 1 2 1 4 4 0 0 1 1 1l2 2h2l1-1 1-2a4 4 0 0 1 0-2 4 4 0 0 1 1-1 4 4 0 0 1 2-1 4 4 0 0 1 1 0h6a5 5 0 0 1 1 1 4 4 0 0 1 2 1 4 4 0 0 1 0 1 4 4 0 0 1 1 2l-1 3h1l1 1 1 1 3-2a4 4 0 0 1 1-1 4 4 0 0 1 2 0 4 4 0 0 1 1 0M11 0h82a11 11 0 0 1 11 11v30h-1a11 11 0 0 0-2-1h-2V21H5v49h51a12 12 0 0 0 0 2v4h-1v11h4l1 1h1l-1 1a12 12 0 0 0 0 2v1H11A11 11 0 0 1 0 81V11A11 11 0 0 1 11 0m35 31 19 13a3 3 0 0 1 0 4L47 61a3 3 0 0 1-2 0 3 3 0 0 1-3-2V33l1-1a3 3 0 0 1 3-1m4 56V76H29v11ZM24 76H5v5a6 6 0 0 0 6 6h13zm52-60V5H55v11Zm5-11v11h18v-5a6 6 0 0 0-6-6ZM50 16V5H29v11Zm-26 0V5H11a6 6 0 0 0-6 6v5Zm70 56a6 6 0 1 1-6 7 6 6 0 0 1 6-7m-1-8a14 14 0 1 1-13 16 14 14 0 0 1 13-16"}}`,
check_mark: `{"svg":{"viewBox":"-32 -32 186.9 153.8"},"path":{"d":"M1.2 55.5a3.7 3.7 0 0 1 5-5.5l34.1 30.9 76.1-79.7a3.8 3.8 0 0 1 5.4 5.1L43.2 88.7a3.7 3.7 0 0 1-5.2.2L1.2 55.5z"}}`,
arrow: `{"svg":{"viewBox":"-80 -80 227 283","fill":"#aaa"},"path":{"d":"M2 111a7 7 0 1 0 10 10l53-55-5-5 5 5c3-3 3-7 0-10L12 2A7 7 0 1 0 2 12l48 49z"}}`,
};
/**
* @param {string} name
* @param {boolean} value
* @returns {boolean}
*/
function saveOption(name, value) {
GM.setValue(name, value);
return (options[name] = value);
}
for (const name in options) {
const saved_option = await GM.getValue(name);
if (saved_option === undefined) {
saveOption(name, options[name]);
} else {
options[name] = saved_option;
}
}
/**
* @param {string} name
* @param {object} attributes
* @param {Array} append
* @returns {SVGElement}
*/
function createNS(name, attributes = {}, append = []) {
const el = document.createElementNS("http://www.w3.org/2000/svg", name);
for (const k in attributes) el.setAttributeNS(null, k, attributes[k]);
return el.append(...append), el;
}
for (const name in icons) {
const icon = JSON.parse(icons[name]);
icons[name] = createNS("svg", icon.svg, [createNS("path", icon.path)]);
}
/**
* @param {Document | HTMLElement} context
* @param {string} query
* @param {boolean} all
* @returns {HTMLElement | NodeListOf<HTMLElement> | null}
*/
function find(context, query, all = false) {
const property = "querySelector" + (all ? "All" : "");
return context[property](query);
}
/**
* @param {string} query
* @param {boolean} cache
* @returns {() => HTMLElement | null}
*/
function $(query, cache = true) {
let element = null;
return () => (cache && element) || (element = find(document, query));
}
const allowedIds = ["#movie_player", "#shorts-player"];
const cachePlayers = new Map();
const cacheTextQuality = new Set();
const query = {
m_menu_item: "[role='menuitem'], ytm-menu-service-item-renderer",
m_settings_btn: ".player-settings-icon, ytm-bottom-sheet-renderer",
m_settings_menu: "player-settings-menu",
m_menu_header: "#header-wrapper",
m_menu_content: "#content-wrapper",
m_item_icon: "c3-icon",
m_item_text: "[role='text']",
};
const element = {
settings: $(".ytp-settings-menu"),
panel_settings: $(".ytp-settings-menu .ytp-panel-menu"),
quality_menu: $(".ytp-quality-menu", false),
movie_player: $(allowedIds[0], !isMobile),
short_player: $(allowedIds[1]),
popup_menu: $("ytd-popup-container ytd-menu-service-item-renderer"),
m_bottom_container: $("bottom-sheet-container:not(:empty)", false),
m_settings: $(query.m_settings_btn, false),
// Reserve Element
premium_menu: document.createElement("div"),
};
/**
* @param {MutationCallback} callback
* @param {Node} target
* @param {MutationObserverInit | undefined} options
* @returns {MutationObserver}
*/
function observer(callback, target, options) {
const mutation = new MutationObserver(callback);
mutation.observe(target, options || { subtree: true, childList: true });
return mutation;
}
/**
* @param {string} label
* @returns {number}
*/
function parseQualityLabel(label) {
return parseInt(label.slice(0, 4), 10);
}
/**
* @typedef {object} QualityData
* @property {any} formatId
* @property {string} qualityLabel
* @property {string} quality
* @property {boolean} isPlayable
*/
/**
* @typedef {object} Player
* @property {() => string} getPlaybackQualityLabel
* @property {() => QualityData[]} getAvailableQualityData
* @property {Function} setPlaybackQualityRange
*/
/**
* @param {QualityData[]} qualityData
* @returns {number}
*/
function getPreferredQuality(qualityData) {
const currentMaxQuality = Math.max(
...qualityData.map((data) => parseQualityLabel(data.qualityLabel))
);
return !isFinite(currentMaxQuality) ||
currentMaxQuality > options.preferred_quality
? options.preferred_quality
: currentMaxQuality;
}
/**
* @param {HTMLElement} player
* @param {QualityData[]} qualityData
* @param {number} preferred
* @returns {QualityData}
*/
function getQuality(player, qualityData, preferred) {
const q = { premium: null, normal: null };
const short = player.id.includes("short");
let indexQuality = listQuality.indexOf(preferred);
while (
indexQuality-- &&
!qualityData.some((data) => {
return parseQualityLabel(data.qualityLabel) == preferred;
})
) {
preferred = listQuality[indexQuality];
}
qualityData.forEach((data) => {
const label = data.qualityLabel.toLowerCase();
if (parseQualityLabel(label) == preferred && data.isPlayable) {
if (label.includes("premium")) q.premium = data;
else q.normal = data;
}
});
return (options.preferred_premium && !short && q.premium) || q.normal;
}
function setVideoQuality() {
if (manualOverride) return;
if (isUpdated) return (isUpdated = false);
/** @type {Player} */
const player = this;
const label = player.getPlaybackQualityLabel();
const quality = parseQualityLabel(label);
const qualityData = player.getAvailableQualityData();
const preferred = getPreferredQuality(qualityData);
const selected = getQuality(player, qualityData, preferred);
if (
quality &&
selected &&
listQuality.includes(quality) &&
(isUpdated = quality != preferred || selected.qualityLabel != label)
) {
player.setPlaybackQualityRange(
selected.quality,
selected.quality,
selected.formatId
);
}
}
function generateSimpleId() {
const randStr = () => Math.random().toString(36).slice(2, 3);
return [...Array(16)].map(randStr).join("");
}
function triggerSyncOptions() {
isUpdated = false;
const id = generateSimpleId();
GM.setValue("updated_id", id).then(() => (options.updated_id = id));
}
/**
*
* @param {keyof options} optionName
* @param {any} newValue
* @param {HTMLElement} player
* @returns {any}
*/
function savePreferred(optionName, newValue, player) {
saveOption(optionName, newValue);
triggerSyncOptions();
setVideoQuality.call(player);
return newValue;
}
/**
* @param {string} className
* @param {Array} append
* @returns {HTMLDivElement}
*/
function itemElement(className = "", append = []) {
const el = document.createElement("div");
el.className = "ytp-menuitem" + (className ? "-" + className : "");
return el.append(...append), el;
}
function createMenuItem(svgIcon, textLabel, checkbox = false) {
const inner = checkbox ? [itemElement("toggle-checkbox")] : [];
const content = itemElement("content", inner);
const item = itemElement("", [
itemElement("icon", [svgIcon]),
itemElement("label", [textLabel]),
content,
]);
return { item, content };
}
/**
* @param {HTMLElement} element
* @param {boolean} state
*/
function setChecked(element, state) {
element.setAttribute("aria-checked", state);
}
function premiumMenu() {
const menu = createMenuItem(icons.premium, "Preferred Premium", true);
const name = "preferred_premium";
setChecked(menu.item, options[name]);
menu.item.addEventListener("click", function () {
const player = element.movie_player();
setChecked(this, savePreferred(name, !options[name], player));
});
return (element.premium_menu = menu.item);
}
/**
* @param {string} value
* @param {Text | undefined} text
*/
function setTextQuality(value, text) {
if (text) cacheTextQuality.add(text);
cacheTextQuality.forEach((qualityText) => {
qualityText.textContent = value + "p";
});
}
/**
* @param {HTMLElement} element
* @returns {DOMRect}
*/
function getRect(element) {
return element.getBoundingClientRect();
}
/**
* @param {HTMLElement} content
* @param {HTMLElement} player
*/
function qualityOption(content, player) {
const name = "preferred_quality";
const text = document.createTextNode("");
Object.assign(content.style, {
cursor: "pointer",
fontWeight: 500,
textAlignLast: "justify",
});
setTextQuality(options[name], text);
content.append("< ", text, " >");
content.addEventListener("click", function (ev) {
const threshold = this.clientWidth / 2;
const clickPos = ev.clientX - getRect(this).left;
let pos = listQuality.indexOf(options[name]);
if (
(clickPos < threshold && pos > 0 && pos--) ||
(clickPos > threshold && pos < listQuality.length - 1 && ++pos)
) {
manualOverride = false;
setTextQuality(savePreferred(name, listQuality[pos], player));
}
});
}
function qualityMenu() {
const menu = createMenuItem(icons.quality, "Preferred Quality");
menu.item.style.cursor = "default";
menu.content.style.fontSize = "130%";
menu.content.style.wordSpacing = "2rem";
qualityOption(menu.content, element.movie_player());
return menu.item;
}
function shortQualityMenuStyle() {
const replaceList = {
"ytd-menu-service-item-renderer": ".ytp-menuitem-custom-element",
"tp-yt-paper-item": ".item",
"yt-icon": ".icon",
"yt-formatted-string": ".message",
};
const tags = Object.keys(replaceList);
const styleElement = document.createElement("style");
function replaceTag(css) {
css = css.replace(/\[system-icons\]|\[use-icons\]/gi, "");
for (const k in replaceList) {
css = css.replaceAll("." + k, "").replaceAll(k, replaceList[k]);
}
return css;
}
function replaceSelector(css) {
let [selector, content] = css.split("{");
selector = selector.split(",").map((query) => {
query = query.trim();
const menu = replaceList["ytd-menu-service-item-renderer"];
if (!query.startsWith(menu)) query = menu + " " + query;
return query;
});
return selector.join(",") + "{" + content;
}
function checkSelector(selector) {
return (
selector &&
tags.some(
(tag) =>
!selector.includes(tag + "-") &&
!selector.includes("." + tag) &&
selector.includes(tag)
)
);
}
for (const styles of document.styleSheets) {
try {
for (const rule of styles.cssRules) {
if (checkSelector(rule.selectorText)) {
styleElement.textContent += replaceSelector(
replaceTag(rule.cssText)
);
}
}
} catch (e) {}
}
document.head.append(styleElement);
}
function shortQualityMenu() {
const options = itemElement(" message");
const menu = itemElement("custom-element", [
itemElement(" item", [
itemElement(" icon", [
itemElement(" yt-icon-shape yt-spec-icon-shape", [
icons.quality.cloneNode(true),
]),
]),
itemElement(" message", ["Preferred Quality"]),
options,
]),
]);
menu.style.userSelect = "none";
menu.style.cursor = "default";
options.style.paddingInline = "24px";
options.style.margin = 0;
options.style.minWidth = "100px";
qualityOption(options, element.short_player());
return menu;
}
/**
* @param {MouseEvent} ev
*/
function setOverride(ev) {
const menu = element.quality_menu();
const quality = parseQualityLabel(ev.target.textContent);
if (menu && listQuality.includes(quality)) manualOverride = true;
}
/**
* @param {HTMLElement} player
*/
function addVideoListener(player) {
const video = find(player, "video");
if (cachePlayers.get(player) === video) return;
cachePlayers.set(player, video);
const fn = setVideoQuality.bind(player);
video.addEventListener("play", () => setTimeout(fn, 200));
video.addEventListener("resize", fn);
}
/**
* @param {string} type
* @returns {boolean}
*/
function videoPath(type = "") {
const path = win.location.pathname;
return (
(path.startsWith("/watch") || path.startsWith("/short")) &&
path.includes(type)
);
}
function resetState() {
isUpdated = false;
manualOverride = false;
}
function playerUpdated(ev) {
if (!videoPath()) return;
let player = null;
if (allowedIds.some((id) => (player = find(ev.target, id)))) {
resetState();
addVideoListener(player);
}
}
async function syncOptions() {
if ((await GM.getValue("updated_id")) != options.updated_id) {
isUpdated = false;
for (const name in options) options[name] = await GM.getValue(name);
setChecked(element.premium_menu, options.preferred_premium);
setTextQuality(options.preferred_quality);
for (const [player, video] of cachePlayers) {
if (!video.paused) setVideoQuality.call(player);
}
}
}
(function checkOptions() {
setTimeout(() => syncOptions().then(checkOptions), 1e3);
})();
/**
* @param {NodeListOf<Element>[]} elements
*/
function removeOtherElement(elements) {
elements.forEach((element) => {
for (let i = 1; i < element.length; i++) element[i].remove();
});
}
/**
* @param {HTMLElement} element
* @param {SVGSVGElement | undefined} icon
* @param {string} label
* @param {Text | string} selectedLabel
*/
function parseItem(element, icon, label, selectedLabel) {
element = element.cloneNode(true);
const mIcons = find(element, query.m_item_icon, true);
const mTexts = find(element, query.m_item_text, true);
if (selectedLabel) {
const textSelection = mTexts[0].cloneNode();
const newIcon = mIcons[0].cloneNode();
textSelection.style.marginLeft = "auto";
textSelection.style.color = "#aaa";
textSelection.append(selectedLabel);
mTexts[0].after(textSelection);
newIcon.append(icons.arrow);
textSelection.after(newIcon);
}
mIcons[0].textContent = "";
if (icon) mIcons[0].append(icon.cloneNode(true));
mTexts[0].textContent = label;
removeOtherElement([mIcons, mTexts]);
return element;
}
/** @type {HTMLElement} */
let customMenuItem = null;
const customHashId = "custom-bottom-menu";
/**
* @param {HTMLElement} container
*/
function bottomMenu(container) {
win.location.replace("#" + customHashId);
maybeChangeQuality = false;
customMenuItem = container.cloneNode(true);
const item = find(customMenuItem, query.m_menu_item);
const menu = item.parentElement;
const header = find(customMenuItem, query.m_menu_header);
const content = find(customMenuItem, query.m_menu_content);
/** @type {HTMLElement} */
let preferredQualityElement = null;
const mapQuality = [...listQuality].reverse().map((q) => {
const preferred = options.preferred_quality == q;
const txt = `${q}p ${q == defaultQuality ? "(Recommended)" : ""}`;
const element = parseItem(item, preferred && icons.check_mark, txt);
if (preferred) preferredQualityElement = element;
return element;
});
menu.textContent = "";
menu.append(...mapQuality);
header.remove();
content.style.maxHeight = "250px";
body.style.overflow = "hidden";
container.parentElement.parentElement.append(customMenuItem);
const contentTop = getRect(content).top;
const qualityRect = getRect(preferredQualityElement);
const qualityTop = qualityRect.top - contentTop;
content.scrollTo(0, qualityTop - qualityRect.height * 2);
customMenuItem.addEventListener("click", (ev) => {
const quality = parseQualityLabel(ev.target.textContent);
if (listQuality.includes(quality)) {
manualOverride = false;
const video = element.movie_player();
savePreferred("preferred_quality", quality, video);
}
win.history.back();
});
}
const itemMenuText = document.createTextNode("");
function bottomItem() {
const container = element.m_bottom_container();
if (container) {
settingsClicked = false;
maybeChangeQuality = true;
subMenu = false;
const item = find(container, query.m_menu_item);
const menuItem = parseItem(
item,
icons.quality,
"Preferred Quality",
itemMenuText
);
setTextQuality(options.preferred_quality, itemMenuText);
item.parentElement.append(menuItem);
menuItem.addEventListener("click", () => bottomMenu(container));
}
}
/**
* @param {MouseEvent} ev
*/
function setSettingsClicked(ev) {
if (videoPath()) {
const settings = element.m_settings();
settingsClicked = settings && settings.contains(ev.target);
}
}
/**
* @param {MouseEvent} ev
*/
function mobileSetOverride(ev) {
if (settingsClicked || !maybeChangeQuality || !subMenu) return;
const container = element.m_bottom_container();
if (container) {
const item = find(container, query.m_menu_item);
const quality = parseQualityLabel(ev.target.textContent);
if (item && listQuality.includes(quality)) manualOverride = true;
}
maybeChangeQuality = false;
}
function mobilePlayerUpdated(ev) {
if (ev.detail.type == "newdata") resetState();
}
/**
* @param {HashChangeEvent} ev
*/
function handlePressBack(ev) {
if (customMenuItem && ev.oldURL.includes(customHashId)) {
customMenuItem.remove();
customMenuItem = null;
body.style.overflow = "";
}
}
if (isMobile) {
win.addEventListener("click", setSettingsClicked, true);
win.addEventListener("click", mobileSetOverride, true);
win.addEventListener("hashchange", handlePressBack);
document.addEventListener("video-data-change", mobilePlayerUpdated);
return observer(() => {
const player = element.movie_player();
if (player) {
const unstarted = player.className.includes("unstarted-mode");
const video = find(player, "video");
if (unstarted) player.playVideo();
if (cachePlayers.get(player) !== video) {
cachePlayers.clear();
addVideoListener(player);
}
}
if (settingsClicked) bottomItem();
}, body);
}
function initShortMenu() {
const short = videoPath("short");
const menu = element.popup_menu();
if (short && menu) {
shortQualityMenuStyle();
const item = menu.parentElement;
item.append(shortQualityMenu());
win.removeEventListener("click", initShortMenu);
}
}
win.addEventListener("click", initShortMenu);
observer((_, observe) => {
const movie_player = element.movie_player();
const short_player = element.short_player();
if (short_player) addVideoListener(short_player);
if (movie_player) {
addVideoListener(movie_player);
element.panel_settings().append(premiumMenu(), qualityMenu());
element.settings().addEventListener("click", setOverride, true);
document.addEventListener("yt-player-updated", playerUpdated);
observe.disconnect();
}
}, body);
})();