Convert mp4 to dash and hls fragmented video in Nodejs

convert.js

const path = require('path')
const fs = require('fs')
const util = require('util')
const exec = util.promisify(require('child_process').exec)

// https://www.bento4.com/downloads/
const BENTO4Folder = 'D:/Bento4-SDK-1-6-0-639.x86_64-microsoft-win32/bin'

const mp4dash = BENTO4Folder + '/mp4dash'
const mp4fragment = BENTO4Folder + '/mp4fragment'

async function fragmentVideo (file, directory, name) {
	const command = `${mp4fragment} ${file} ${directory}/${name}.mp4`
	const { stdout, stderr } = await exec(command)
	console.log('stdout:', stdout)
	console.log('stderr:', stderr)
}

async function convertToDashAndHLS (file, directory) {
	const command = `${mp4dash} --hls -o ${directory} -f ${file}`
	const { stdout, stderr } = await exec(command)
	console.log('stdout:', stdout)
	console.log('stderr:', stderr)
}

async function convertVideo (file) {
	const name = path.parse(file).name
	const directory = path.dirname(file) + '/' + name

	// create a repository for all new files
	if (!fs.existsSync(directory)) {
		fs.mkdirSync(directory)
	}

	// Fragment the video
	await fragmentVideo(file, directory, name)

	// Convert all new files to DASH and HLS
	await convertToDashAndHLS(`${directory}/${name}.mp4`, directory)

	// Cleanup temporaly file
	fs.unlinkSync(`${directory}/${name}.mp4`)
}