Small scripts to boost twitch volume beyond 100% or change brightness of video

brightness.js

// To use this, open console (developer tools), change the brigtness you want, paste it there and run

// 1 = 100% ...
twitchBrightness(1.2)

function twitchBrightness(amount) {
  const video = document.querySelector('video')
  video.style.filter = `brightness(${amount * 100}%)`
}

volume.js

// To use this, open console (developer tools), change the volume you want, paste it there and run

// 1 = 100% ...
twitchVolume(2)

function twitchVolume(volume) {
  if (!window.twitchVolumeGainNode) {
    const video = document.querySelector('video')
    // create an audio context and hook up the video element as the source
    const audioCtx = new AudioContext();
    const source = audioCtx.createMediaElementSource(video);

    // create a gain node
    const gainNode = audioCtx.createGain();
    source.connect(gainNode);

    // connect the gain node to an output destination
    gainNode.connect(audioCtx.destination);    
    
    window.twitchVolumeGainNode = gainNode
  }
  
  window.twitchVolumeGainNode.gain.value = volume
}