YouTube (incl embedded) Video Quality Preference

Set initial video quality for all YouTube videos (embedded or on youtube.com) based on a set of preferred video qualities

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

Bạn sẽ cần cài đặt một tiện ích mở rộng như Tampermonkey hoặc Violentmonkey để cài đặt kịch bản này.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(Tôi đã có Trình quản lý tập lệnh người dùng, hãy cài đặt nó!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         YouTube (incl embedded) Video Quality Preference
// @namespace    https://github.com/Alistair1231/my-userscripts/blob/master/youtube-embed-quality.user.js
// @version      1.1.0
// @license      AGPLv3
// @author       Alistair1231
// @description  Set initial video quality for all YouTube videos (embedded or on youtube.com) based on a set of preferred video qualities
// @match        *://www.youtube.com/embed/*
// @match        *://www.youtube.com/*
// @require      https://cdn.jsdelivr.net/gh/Alistair1231/my-userscripts@b2046277b444b73e076f64021d68426da93d71c3/types/lib.js
// ==/UserScript==
// https://greasyfork.org/en/scripts/539509-embedded-youtube-video-quality-preference
// https://github.com/Alistair1231/my-userscripts/blob/master/youtube-embed-quality.user.js
;(async () => {
  // select quality in order of preference
  const preferredQualities = ['2160p', '1440p', '1080p', '720p', '480p', '360p', '240p', '144p'];

  // !!!
  // !!! End of configuration
  // !!!
  /*global lib */
  /**
   * @typedef {import('./types/lib.js').Lib} Lib
   * @type {Lib}
   */

  // click settings button
  await lib.waitFor('.ytp-settings-button').then((x) => {
    console.log('Youtube Embed Quality: Found settings button', x)
    return x.click()
  })
  // wait for the settings menu to appear
  await lib.waitFor('.ytp-panel-menu')

  // wait for the "Quality" menu item to appear
  const qualityItem = await lib.waitForText('.ytp-menuitem-label', 'Quality')
  console.log('Youtube Embed Quality: Found quality menu item', qualityItem)
  qualityItem.click()

  const qualityRegex = new RegExp(`(${preferredQualities.join('|')})`, 'i') // case-insensitive regex to match preferred qualities
  const qualities = await lib.waitForText(
    '.ytp-menuitem-label',
    qualityRegex,
    true,
    true
  )
  console.log('Youtube Embed Quality: Found qualities', qualities)

  for (const prefQuality of preferredQualities) {
    const quality = qualities.find((q) => q.textContent.match(new RegExp(prefQuality, 'i')))
    if (quality) {
      console.log(`Youtube Embed Quality: Setting quality to ${prefQuality}`)
      quality.click()
      return
    }
  }
})(lib)