checkVideo.js

const child_process = require("child_process");
const readline = require("readline");
module.exports = async (url) => {
    return new Promise((resolve, reject) => {
        let ffprobeProcess = child_process.spawn(ffprobe, [
            "-v",
            "error",
            "-show_entries",
            "frame=width,height,pix_fmt", // Check the frame width, height, and pix_fmt
            "-select_streams",
            "v",
            "-of",
            "csv=p=0",
            url
        ]);
        let rli = readline.createInterface({
            input: ffprobeProcess.stdout
        });
        let lastLine = null;
        rli.on("line", line => {
            if (line === "") return; // Sometimes ffprobe outputs empty lines which can be safely ignored.
            if (line !== lastLine && lastLine !== null) {
                reject(); // Crasher!
                ffprobeProcess.kill();
            }
            lastLine = line;
        });
        rli.once("close", () => {
            resolve(); // Video completely checked
        });
    });
};

// CREDIT WHERE CREDIT IS DUE
// This is adapted from u/T1J8r's code on r/discordapp