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Netflix subtitle cleanup

Remove all "[inhales]", "[loud noise]" from the subtitles

  1. // ==UserScript==
  2. // @name        Netflix subtitle cleanup
  3. // @namespace   Violentmonkey Scripts
  4. // @match       https://www.netflix.com/*
  5. // @grant       none
  6. // @version     1.4
  7. // @author      Einar Lielmanis, einars@spicausis.lv
  8. // @license     MIT
  9. // @description Remove all "[inhales]", "[loud noise]" from the subtitles
  10. // ==/UserScript==
  11.  
  12. let observed_node = undefined
  13.  
  14. let kill_song_lyrics = false
  15.  
  16. const cleanup = (t) => {
  17.   if (kill_song_lyrics && t.includes('♪')) {
  18.     return '' // ignore song lyrics
  19.   } else if (t.includes('[') && t.includes(']')) {
  20.     return t.replace(/(- *)?\[[^\]]+\]/g, '') // (maybe "- ") "[" .. (not "]")+ .. "]"
  21.   } else if (t.includes('(') && t.includes(')')) {
  22.     return t.replace(/(- *)?\([^\)]+\)/g, '') // (maybe "- ") "(" .. (not ")")+ .. ")"
  23.   }
  24.  
  25.   return t
  26. }
  27.  
  28. const on_mutated = (changes) => {
  29.   const ts = observed_node.querySelectorAll('.player-timedtext-text-container span')
  30.   for (let i = 0; i < ts.length; i++) {
  31.     
  32.     const t = ts[i].innerHTML
  33.     const nt = cleanup(t)
  34.     
  35.     if (nt !== t) {
  36.       ts[i].innerHTML = nt
  37.       // console.log({ original: t, filtered: nt })
  38.     }
  39.   }
  40. }
  41.  
  42. const observer = new MutationObserver(on_mutated)
  43.  
  44. const reobserve = () => {
  45.   const elems = document.getElementsByClassName('player-timedtext')
  46.   if (elems[0] !== undefined) {
  47.     if (observed_node !== elems[0]) {
  48.       observed_node = elems[0]
  49.       console.log({ observed_node })
  50.       observer.observe(observed_node, { childList: true, subtree: true})
  51.     }
  52.   }
  53.   window.setTimeout(reobserve, 1000)
  54. }
  55.  
  56.  
  57. const run_tests = () => {
  58.   // the tests are lightning fast, so just do run them quickly on every script startup
  59.   const test_cleanup = (source, expected) => {
  60.     console.assert(cleanup(source) === expected, { test_result: false, source, expected, actual: cleanup(source) })
  61.   }
  62.   test_cleanup('normal text', 'normal text')
  63.   test_cleanup('[coughs]', '')
  64.   test_cleanup('[coughs] yeah', ' yeah')
  65.   test_cleanup('-[coughs]', '')
  66.   test_cleanup('- [coughs]', '')
  67.   test_cleanup('- (inhales)', '')
  68.   test_cleanup('some ♪ singing', '')
  69.   console.log('tests ok')
  70. }
  71.  
  72.  
  73. console.log('Netflix subtitle filter userscript starting up')
  74. run_tests()
  75. reobserve()