Speed up videos on the stupid igotkarmayogi.gov.in platform

console.run

(() => {
  const RATE = 2; // set 1.25, 1.5, 1.75, 2.0

  const setRate = m => {
    try {
      m.defaultPlaybackRate = RATE;
      m.playbackRate = RATE;
      if ('preservesPitch' in m) m.preservesPitch = false;
      if ('webkitPreservesPitch' in m) m.webkitPreservesPitch = false;
    } catch (_) {}
  };

  // Patch playbackRate and play so speed is applied even if we cannot query the element
  try {
    const proto = HTMLMediaElement.prototype;

    if (!proto.__patchedPlaybackRate) {
      const desc = Object.getOwnPropertyDescriptor(proto, 'playbackRate');
      Object.defineProperty(proto, 'playbackRate', {
        get() { try { return RATE; } catch (e) { return desc.get.call(this); } },
        set(v) { try { desc.set.call(this, RATE); setRate(this); } catch (e) {} }
      });
      proto.__patchedPlaybackRate = true;
    }

    if (!proto.__patchedPlay) {
      const origPlay = proto.play;
      proto.play = function(...args) {
        setRate(this);
        const p = origPlay.apply(this, args);
        if (p && typeof p.then === 'function') {
          return p.then(x => { setRate(this); return x; })
                  .catch(e => { setRate(this); throw e; });
        }
        return p;
      };
      proto.__patchedPlay = true;
    }
  } catch (_) {}

  // Deep scan: DOM, shadow DOM, and same-origin iframes
  const wire = root => {
    try {
      root.querySelectorAll('video,audio').forEach(m => {
        setRate(m);
        ['play','loadedmetadata','canplay','ratechange','seeking','durationchange']
          .forEach(ev => m.addEventListener(ev, () => setRate(m), true));
      });
      root.querySelectorAll('*').forEach(el => { if (el.shadowRoot) wire(el.shadowRoot); });
      root.querySelectorAll('iframe').forEach(fr => {
        try { if (fr.contentDocument) wire(fr.contentDocument); } catch (_) {}
      });
    } catch (_) {}
  };

  wire(document);
  new MutationObserver(() => wire(document)).observe(document.documentElement, { childList: true, subtree: true });
  setInterval(() => wire(document), 1000);

  // Try to inject into same-origin subframes by executing this function in their context
  const injectInto = win => {
    try { win.Function(`(${arguments.callee.caller.toString()})()` )(); } catch (_) {}
  };
  (function injectAll(win) {
    Array.from(win.frames).forEach(fw => {
      try { if (fw.document) injectAll(fw); injectInto(fw); } catch (_) {}
    });
  })(window);

  window.__checkRates = () => ([...document.querySelectorAll('video')].map(v => v.playbackRate));
  console.log('Forced playbackRate =', RATE, 'for all reachable media in this page.');
})();