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

您需要先安装一个扩展,例如 篡改猴Greasemonkey暴力猴,之后才能安装此脚本。

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

您需要先安装一个扩展,例如 篡改猴暴力猴,之后才能安装此脚本。

您需要先安装一个扩展,例如 篡改猴Userscripts ,之后才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey,才能安装此脚本。

您需要先安装用户脚本管理器扩展后才能安装此脚本。

(我已经安装了用户脚本管理器,让我安装!)

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

(我已经安装了用户样式管理器,让我安装!)

// ==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)