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YouTube: Audio Only

No Video Streaming

当前为 2024-01-11 提交的版本，查看 最新版本。

// ==UserScript==
// @name                YouTube: Audio Only
// @description         No Video Streaming
// @namespace           UserScript
// @version             0.1.0
// @author              CY Fung
// @match               https://www.youtube.com/*
// @match               https://www.youtube.com/embed/*
// @match               https://www.youtube-nocookie.com/embed/*
// @exclude             /^https?://\S+\.(txt|png|jpg|jpeg|gif|xml|svg|manifest|log|ini)[^\/]*$/
// @icon                https://www.google.com/s2/favicons?sz=64&domain=youtube.com
// @grant               none
// @run-at              document-start
// @license             MIT
// @compatible          chrome
// @compatible          firefox
// @compatible          opera
// @compatible          edge
// @compatible          safari
// @unwrap
// @allFrames           true
// @inject-into         page
// ==/UserScript==


(function () {
  'use strict';

  Object.defineProperty(Object.prototype, 'deviceIsAudioOnly', {
    get() {
      return true
    },
    set(nv) {
      return true;
    },
    enumerable: false,
    configurable: true
  });

  const supportedFormatsConfig = () => {

    function typeTest(type) {
      if (typeof type === 'string' && type.startsWith('video/')) {
        return false;
      }
    }

    // return a custom MIME type checker that can defer to the original function
    function makeModifiedTypeChecker(origChecker) {
      // Check if a video type is allowed
      return function (type) {
        let res = undefined;
        if (type === undefined) res = false;
        else {
          res = typeTest.call(this, type);
        }
        if (res === undefined) res = origChecker.apply(this, arguments);
        return res;
      };
    }

    // Override video element canPlayType() function
    const proto = (HTMLVideoElement || 0).prototype;
    if (proto && typeof proto.canPlayType == 'function') {
      proto.canPlayType = makeModifiedTypeChecker(proto.canPlayType);
    }

    // Override media source extension isTypeSupported() function
    const mse = window.MediaSource;
    // Check for MSE support before use
    if (mse && typeof mse.isTypeSupported == 'function') {
      mse.isTypeSupported = makeModifiedTypeChecker(mse.isTypeSupported);
    }

  };

  supportedFormatsConfig();

})();