alpgul

class AsyncLock {
    private _lock = new Int32Array(new SharedArrayBuffer(4)) // SharedArrayBuffer for multi-threading, 4 bytes for 32-bit integer

    static INDEX = 0
    static UNLOCKED = 0
    static LOCKED = 1

    lock() {
        while (true) {
            console.log("lock")

alpgul

Extract audio from a YouTube video file

ffmpeg -i INPUT.mp4 -ab 256k OUTPUT.mp3

Cut 3s length

ffmpeg -y -ss 00:00:03 -i INPUT.mp4 -codec copy OUTPUT.mp4