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Force LinkedIn video playback speed to 16x
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| /* | |
| # LinkedIn Video Playback Speed Enforcer | |
| This JavaScript snippet forces LinkedIn videos to play at a fixed speed (16x), | |
| preventing the website from changing or resetting the playback speed. | |
| --- | |
| ## How to use: | |
| 1. Open LinkedIn and navigate to a video you want to watch. | |
| 2. Open your browser's developer console (usually F12 or Ctrl+Shift+I). | |
| 3. Copy and paste this entire code snippet into the console and press Enter. | |
| 4. The video playback speed will be locked to 16x and enforced continuously. | |
| 5. If the video changes, the script will detect and apply the speed automatically. | |
| --- | |
| ## Notes: | |
| - You can adjust the playback speed by changing the value of `speed` (currently 16). | |
| - The script overrides the `playbackRate` property to block changes. | |
| - It keeps re-applying the speed every 500ms to counter resets by the site. | |
| */ | |
| (() => { | |
| const speed = 16; | |
| let currentVideo, interval; | |
| function setSpeed(v) { | |
| if (!v) return; | |
| v.playbackRate = speed; | |
| const desc = Object.getOwnPropertyDescriptor(HTMLMediaElement.prototype, 'playbackRate'); | |
| if (desc?.configurable) { | |
| Object.defineProperty(v, 'playbackRate', { | |
| configurable: true, | |
| enumerable: true, | |
| get: () => speed, | |
| set: val => { | |
| if (val !== speed) console.log(`Blocked playbackRate ${val}, kept ${speed}`); | |
| else desc.set.call(v, val); | |
| } | |
| }); | |
| } | |
| clearInterval(interval); | |
| interval = setInterval(() => { | |
| if (v.playbackRate !== speed) { | |
| v.playbackRate = speed; | |
| console.log(`Re-applied playbackRate to ${speed}`); | |
| } | |
| }, 500); | |
| } | |
| setInterval(() => { | |
| const v = document.querySelector('video'); | |
| if (v !== currentVideo) { | |
| currentVideo = v; | |
| if (v) { | |
| console.log('New video detected, enforcing playback speed...'); | |
| setSpeed(v); | |
| } | |
| } | |
| }, 1000); | |
| })(); |
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