// ==UserScript==
// @name Twitch - Mute ads and optionally hide them
// @namespace TWITCHADS
// @description Automatically mutes the Twitch player when an advertisement started and unmute it once finished. You can also hide ads by setting disableDisplay to true.
// @include https://www.twitch.tv/*
// @include https://twitch.tv/*
// @version 1.16132
// @license MIT
// @author Harest
// @grant none
// ==/UserScript==
(function() {
var _tmuteVars = { "timerCheck": 500, // EDITABLE - Checking rate of ad in progress (in milliseconds; recommended value: 250 - 1000; default: 500)
"adInProgress": false, // Track if an ad is in progress or not (directly linked to player mute state)
"adsDisplayed": 0, // Number of ads displayed
"disableDisplay": false, // EDITABLE - Disable the player display during an ad (true = yes, false = no (default))
"anticipatePreroll": false, // EDITABLE - Temporarily mute and/or hide the player when loading a new stream to anticipate a pre-roll ad (true = yes, false = no (default))
"anticipateTimer": 2000, // EDITABLE - Time where the player is muted and/or hidden when loading a new stream to anticipate a pre-roll ad (in milliseconds; default: 2000)
"anticipateInProgress": false, // Used to check if we're currently anticipating a pre-roll ad
"anticipatePrematureEnd": false, // Used to check if we prematurely ended a pre-roll ad anticipation
"alreadyMuted": false, // Used to check if the player is muted at the start of an ad
"adElapsedTime": undefined, // Used to check if Twitch forgot to remove the ad notice
"adUnlockAt": 270, // EDITABLE - Unlock the player if this amount of seconds elapsed during an ad (in seconds; default: 270)
"adMinTime": 2, // EDITABLE - Minimum amount of seconds the player will be muted/hidden since an ad started (in seconds; default: 2)
"playerIdAds": 0, // Player ID where ads may be displayed (default 0, varying on squads page)
"displayingOptions": false, // Either ads options extended menu is currently displayed or not
"highwindPlayer": undefined, // If you've the Highwind Player or not
"currentPage": undefined, // Current page to know if we need to reset ad detection on init, or add the ads options back
"currentChannel": undefined, // Current channel to avoid pre-roll ad anticipation to trigger if we visit channel pages
"optionsInitialized": false, // Used to know if the ads options have been initialized on the current page
"optionsInitializing": false, // Used to track the ads options initialization
"volumePremute": undefined, // Main player volume, used to set the volume of the stream top right during an ad
"restorePiP": false // Used to avoid displaying an ad if a stream is in Picture in Picture mode (require "disableDisplay" to true)
};
// Selectors for the current player (hw: highwind player, only one existing currently)
var _tmuteSelectors = { "hw": { "player": "video-player__container", // Player class
"playerVideo": ".video-player__container video", // Player video selector
"playerDuringAd": "pbyp-player-instance", // Top-right player class, existing sometimes during an ad
"playerHidingDuringAd": "picture-by-picture-player--collapsed", // Class hiding the top-right player (during an ad)
"muteButton": "button[data-a-target='player-mute-unmute-button']", // (un)mute button selector
"volumeSlider": "input[data-a-target='player-volume-slider']", // Volume slider selector
"adNotice": undefined, // Ad notice class
"adNoticeFinder": "[data-a-target='ax-overlay']", // Ad notice selector to find the class
"viewersCount": "metadata-layout__support" // Viewers count wrapper class
}
};
// Current selector (automatically set below)
var currentSelector = undefined;
// Check if there's an ad (main loop)
function checkAd()
{
// Check if you're watching a stream, useless to continue if not
if (_tmuteVars.highwindPlayer === undefined) {
var isHwPlayer = document.getElementsByClassName(_tmuteSelectors.hw.player).length;
var isViewing = Boolean(isHwPlayer);
if (isViewing === false) return;
// We set the type of player currently used
_tmuteVars.highwindPlayer = Boolean(isHwPlayer);
currentSelector = (_tmuteVars.highwindPlayer === true) ? _tmuteSelectors.hw : null;
console.log("You're currently using the " + ((_tmuteVars.highwindPlayer === true) ? "Highwind" : "new unknown") + " player.");
if (currentSelector === null) {
clearInterval(_tmuteVars.autoCheck);
console.log("Script stopped. Failed to find the player, Twitch changed something. Feel free to contact the author of the script.");
}
} else {
var isViewing = Boolean(document.getElementsByClassName(currentSelector.player).length);
if (isViewing === false) return;
}
// Initialize the ads options if necessary.
if (_tmuteVars.optionsInitialized === false || window.location.pathname != _tmuteVars.currentPage) {
initAdsOptions();
if (currentSelector.adNotice === undefined) return;
}
var advert = document.getElementsByClassName(currentSelector.adNotice)[_tmuteVars.playerIdAds];
if (_tmuteVars.adElapsedTime !== undefined)
{
_tmuteVars.adElapsedTime += _tmuteVars.timerCheck / 1000;
if (_tmuteVars.adElapsedTime >= _tmuteVars.adUnlockAt && advert.childNodes[1] !== undefined)
{
for (var i = 0; i < advert.childElementCount; i++)
{
if (!advert.childNodes[i].classList.contains(currentSelector.adNotice)) advert.removeChild(advert.childNodes[i]);
}
console.log("Unlocking Twitch player as Twitch forgot to remove the ad notice after the ad(s).");
}
}
if ((advert.childElementCount > 2 && _tmuteVars.adInProgress === false) || (_tmuteVars.adInProgress === true && advert.childElementCount <= 2))
{
// Update at the start of an ad if the player is already muted or not
if (advert.childElementCount > 2) {
if (_tmuteVars.anticipateInProgress !== false) {
clearTimeout(_tmuteVars.anticipateInProgress);
_tmuteVars.anticipateInProgress = false;
_tmuteVars.anticipatePrematureEnd = true;
console.log("Pre-roll ad anticipation ended prematurely, ad detected.");
} else {
isAlreadyMuted();
}
}
// Keep the player muted/hidden for the minimum ad time set (Twitch started to remove the ad notice before the end of some ads)
if (advert.childElementCount <= 2 && _tmuteVars.adElapsedTime !== undefined && _tmuteVars.adElapsedTime < _tmuteVars.adMinTime) return;
mutePlayer();
}
}
// Main function to (un)mute and (un)hide the player called by checkAd()
function mutePlayer()
{
if (document.querySelector(currentSelector.muteButton) !== null)
{
if (_tmuteVars.anticipatePrematureEnd === true) { // If we ended a pre-roll ad anticipation early, we prevent an invert of the player mute state
_tmuteVars.anticipatePrematureEnd = false;
_tmuteVars.adInProgress = !(_tmuteVars.adInProgress);
} else {
actionMuteClick();
}
if (_tmuteVars.adInProgress === true)
{
_tmuteVars.adsDisplayed++;
_tmuteVars.adElapsedTime = 1;
console.log("Ad #" + _tmuteVars.adsDisplayed + " detected. Player " + (_tmuteVars.alreadyMuted === true ? "already " : "") + "muted.");
actionHidePlayer();
unmuteAdPlayer();
} else {
console.log("Ad #" + _tmuteVars.adsDisplayed + " finished (lasted " + _tmuteVars.adElapsedTime + "s)." + (_tmuteVars.alreadyMuted === true ? "" : " Player unmuted."));
_tmuteVars.adElapsedTime = undefined;
actionHidePlayer(false);
// Mute the stream shown top right during the ad to prevent double audio
var playerDuringAd = document.getElementsByClassName(currentSelector.playerDuringAd)[0];
if (playerDuringAd !== undefined) {
playerDuringAd.childNodes[0].muted = true;
}
}
} else {
console.log("No volume button found (class changed ?).");
}
}
// Unmute (and unhide) the stream showing top right during an ad if the player was initially unmuted
function unmuteAdPlayer(firstCall = true) {
var playerDuringAd = document.getElementsByClassName(currentSelector.playerDuringAd)[0];
if (playerDuringAd !== undefined) {
playerDuringAd.childNodes[0].setAttribute("controls", true);
if (_tmuteVars.alreadyMuted === false) {
playerDuringAd.childNodes[0].volume = _tmuteVars.volumePremute;
playerDuringAd.childNodes[0].muted = false;
}
// Switch the eventual previous PiP to the smaller stream available during an ad
if (_tmuteVars.restorePiP === true) playerDuringAd.childNodes[0].requestPictureInPicture();
// Check the player is not hidden by Twitch, else force display it
var playerHidden = document.getElementsByClassName(currentSelector.playerHidingDuringAd)[0];
if (playerHidden !== undefined) {
playerHidden.classList.remove(currentSelector.playerHidingDuringAd);
console.log("Stream top right hidden detected during the ad. Unhidden.");
}
} else if (firstCall === true) { // Delaying a bit just in case it didn't load in DOM yet
setTimeout(function() { unmuteAdPlayer(false); }, 2000);
}
}
// (un)Mute (and (un)hide) the player when loading a stream to anticipate a pre-roll ad,
// to reduce to nothing the delay you can have before the ad notice is displayed by Twitch / script detects a pre-roll ad
function anticipatePreroll(initCall = true) {
if (_tmuteVars.anticipatePreroll === false || (_tmuteVars.anticipateInProgress !== false && initCall === true)) return;
if (document.querySelector(currentSelector.muteButton) !== null) {
if (initCall === true) isAlreadyMuted();
actionMuteClick(true);
}
actionHidePlayer(initCall);
if (initCall === true) {
console.log("Pre-roll ad anticipation set for ", _tmuteVars.anticipateTimer, " ms. Player " + (_tmuteVars.alreadyMuted === true ? "already " : "") + "muted.");
_tmuteVars.anticipateInProgress = setTimeout(function() { anticipatePreroll(false); }, _tmuteVars.anticipateTimer);
} else {
_tmuteVars.anticipateInProgress = false;
console.log("Pre-roll ad anticipation ended.");
}
}
// Click on the (un)mute button
function actionMuteClick(anticipatingCall = false) {
_tmuteVars.volumePremute = document.querySelectorAll(currentSelector.playerVideo)[_tmuteVars.playerIdAds].volume;
if (_tmuteVars.alreadyMuted === false) document.querySelectorAll(currentSelector.muteButton)[_tmuteVars.playerIdAds].click(); // If the player is already muted before an ad, we avoid to unmute it.
if (anticipatingCall === false) _tmuteVars.adInProgress = !(_tmuteVars.adInProgress);
}
// (un)Hide the player
function actionHidePlayer(hideIt = true) {
if (_tmuteVars.disableDisplay === true) {
document.querySelectorAll(currentSelector.playerVideo)[_tmuteVars.playerIdAds].style.visibility = (hideIt === true) ? "hidden" : "visible";
togglePiP();
}
}
// Detect (and set) if the player is already muted or not (to revert it to its initial state after an ad or anticipating a pre-roll)
function isAlreadyMuted() {
if (_tmuteVars.highwindPlayer === true) {
_tmuteVars.alreadyMuted = Boolean(document.querySelector(currentSelector.volumeSlider).valueAsNumber === 0);
}
}
// Detect if the ads options have been initialized, and starts init if required
function initAdsOptions(lastCalls = 0, failSafeCall = false) {
clearTimeout(_tmuteVars.optionsInitializing);
var optionsInitialized = (document.getElementById("_tmads_options") === null) ? false : true;
if (optionsInitialized === true) initUpdate();
if (optionsInitialized === false) {
_tmuteVars.optionsInitialized = false;
adsOptions("init");
_tmuteVars.optionsInitializing = setTimeout(function() { initAdsOptions(); }, _tmuteVars.timerCheck);
} else if (lastCalls < 5) { // Doing last checks just in case as Twitch reloads these elements on load
lastCalls++;
if (lastCalls === 5) failSafeCall = true;
_tmuteVars.optionsInitializing = setTimeout(function() { initAdsOptions(lastCalls, failSafeCall); }, Math.max(_tmuteVars.timerCheck, 500));
} else if (failSafeCall === true) { // Some actions can remove the ads options button from the page, so we keep a check as a failsafe
_tmuteVars.optionsInitializing = setTimeout(function() { initAdsOptions(lastCalls, failSafeCall); }, 60000);
}
}
// Update different values on init
function initUpdate() {
if (window.location.pathname != _tmuteVars.currentPage) {
// Do the resets needed if we changed page during an ad
if (_tmuteVars.adInProgress === true) {
resetPlayerState();
} else if (_tmuteVars.adInProgress === false && (_tmuteVars.currentChannel === undefined || window.location.pathname.startsWith("/" + _tmuteVars.currentChannel) === false)) {
anticipatePreroll();
}
}
_tmuteVars.currentPage = window.location.pathname;
_tmuteVars.currentChannel = window.location.pathname.split("/")[1];
// Find the ad notice class if not already set
if (currentSelector.adNotice === undefined) {
clearInterval(_tmuteVars.autoCheck); // Temporarily stop the checks while we find the ad notice class
if (document.querySelector(currentSelector.adNoticeFinder) !== null)
{
currentSelector.adNotice = document.querySelector(currentSelector.adNoticeFinder).parentNode.className;
console.log("Ad notice class retrieved (\"" + currentSelector.adNotice + "\") and set.");
_tmuteVars.autoCheck = setInterval(checkAd, _tmuteVars.timerCheck); // Ad notice class set, we can set the ad auto check back up
} else {
console.log("Script stopped. Failed to find the ad notice class, Twitch changed something. Feel free to contact the author of the script.");
}
}
}
// Toggle Picture in Picture mode during an ad if it's on beforehand with "disableDisplay" set to true
function togglePiP() {
if (document.pictureInPictureElement) {
_tmuteVars.restorePiP = true;
document.exitPictureInPicture();
} else if (_tmuteVars.restorePiP === true && document.pictureInPictureEnabled) {
_tmuteVars.restorePiP = false;
if (document.pictureInPictureElement) document.exitPictureInPicture(); // Eventual small stream switched in unmuteAdPlayer()
document.querySelectorAll(currentSelector.playerVideo)[_tmuteVars.playerIdAds].requestPictureInPicture();
}
}
// Reset player state when switching stream during an ad
function resetPlayerState() {
actionMuteClick();
actionHidePlayer(false);
console.log("Stream switched during an ad. Reverted player state.");
}
// Manage ads options
function adsOptions(changeType = "show")
{
switch(changeType) {
// Manage player display during an ad (either hiding the ads or still showing them)
case "display":
_tmuteVars.disableDisplay = !(_tmuteVars.disableDisplay);
// Update the player display if an ad is supposedly in progress
if (_tmuteVars.adInProgress === true) document.querySelectorAll(currentSelector.playerVideo)[_tmuteVars.playerIdAds].style.visibility = (_tmuteVars.disableDisplay === true) ? "hidden" : "visible";
document.getElementById("_tmads_display").innerText = (_tmuteVars.disableDisplay === true ? "Show" : "Hide") + " player during ads";
break;
// Force a player unlock if Twitch didn't remove the ad notice properly instead of waiting the auto unlock
case "unlock":
var advert = document.getElementsByClassName(currentSelector.adNotice)[0];
if (_tmuteVars.adElapsedTime === undefined && advert.childNodes[2] === undefined)
{
alert("There's no ad notice displayed. No unlock to do.");
} else {
// We set the elapsed time to the unlock timer to trigger it during the next check.
_tmuteVars.adElapsedTime = _tmuteVars.adUnlockAt;
console.log("Unlock requested.");
}
break;
// Display the ads options button
case "init":
initUpdate();
if (document.getElementsByClassName(currentSelector.viewersCount)[0] === undefined) break;
// Append ads options and events related
var optionsTemplate = document.createElement("div");
optionsTemplate.id = "_tmads_options-wrapper";
const buttonStyle = document.createElement('style');
buttonStyle.textContent = `
._tmads_button {
display: inline-flex;
align-items: center;
justify-content: center;
padding: 0 2px 0 2px;
margin-left: 2px;
height: 30px;
width: unset;
border-radius: var(--border-radius-medium);
background-color: var(--color-background-button-text-default);
color: var(--color-fill-button-icon);
}
._tmads_button:hover {
background-color: var(--color-background-button-text-hover);
color: var(--color-fill-button-icon-hover);
}`;
document.querySelector('head').appendChild(buttonStyle);
optionsTemplate.innerHTML = `
<span id="_tmads_options" style="display: none;">
<button type="button" id="_tmads_unlock" class="_tmads_button">Unlock player</button>
<button type="button" id="_tmads_display" class="_tmads_button">` + (_tmuteVars.disableDisplay === true ? "Show" : "Hide") + ` player during ads</button>
</span>
<button type="button" id="_tmads_showoptions" class="_tmads_button">Ads Options</button>`;
// Normal player page
if (document.getElementsByClassName(currentSelector.viewersCount)[0] !== undefined)
{
_tmuteVars.playerIdAds = 0;
try {
document.getElementsByClassName(currentSelector.viewersCount)[0].parentNode.childNodes[1].childNodes[1].childNodes[0].childNodes[0].childNodes[1].appendChild(optionsTemplate); // Standard bottom
} catch(e) {
try {
document.getElementsByClassName(currentSelector.viewersCount)[0].childNodes[2].childNodes[0].appendChild(optionsTemplate); // Standard top (short variance, abandoned potentially?)
} catch(e) {
optionsTemplate.style = "padding-top: 5px;";
document.getElementsByClassName(currentSelector.viewersCount)[0].parentNode.childNodes[1].appendChild(optionsTemplate); // Last chance attachment, should always work
}
}
}
document.getElementById("_tmads_showoptions").addEventListener("click", adsOptions, false);
document.getElementById("_tmads_display").addEventListener("click", function() { adsOptions("display"); }, false);
document.getElementById("_tmads_unlock").addEventListener("click", function() { adsOptions("unlock"); }, false);
_tmuteVars.optionsInitialized = true;
console.log("Ads options initialized.");
break;
// Display/Hide the ads options
case "show":
default:
_tmuteVars.displayingOptions = !(_tmuteVars.displayingOptions);
document.getElementById("_tmads_options").style.display = (_tmuteVars.displayingOptions === false) ? "none" : "inline-flex";
}
}
// Start the background check
_tmuteVars.autoCheck = setInterval(checkAd, _tmuteVars.timerCheck);
})();
