Node script to convert any type of file VLC can read into a Unity import-friendly .ogv format.

converter.js

#!/usr/bin/env node

const fs = require('fs')
const path = require('path')
const efs = require('child_process').execFileSync

const vlcPath = path.resolve('C\:/Program\ Files/VideoLAN/VLC/vlc.exe')
const getVlcArgs = (inputFile, outputFile) =>
  `"${inputFile}" :sout='#transcode{vcodec=theo,vb=800,scale=1,acodec=vorb,ab=128,channels=2,samplerate=44100}:file{dst="${outputFile}"}' vlc://quit --intf dummy`

const [dir1, dir2] = process.argv.slice(2, 4)

if(dir1 == undefined) {
  console.log(`Usage: converter [inputDirectory] outputDirectory`)
  return
}

if(!fs.existsSync(vlcPath)) {
  throw new Error(`Cannot find VLC at ${vlcPath}!`)
}

const outputDir = path.resolve(dir2 != undefined ? dir2 : dir1)
const inputDir = path.resolve(dir2 != undefined ? dir1 : process.cwd())

if(!fs.existsSync(inputDir)) {
  throw new Error(`Input directory ${inputDir} not found!`)
}
if(!fs.existsSync(outputDir)) {
  throw new Error(`Output directory ${outputDir} not found!`)  
}

const inFilesToOutFiles = fs.readdirSync(inputDir)
  .filter(f => f.endsWith('.mov'))
  .map(f => [path.join(inputDir, f), path.join(outputDir, f.slice(0, -4) + '.ogv')])

inFilesToOutFiles.forEach(f => {
  console.log(`Transcoding ${f[0]} to ${f[1]}`)
  efs(vlcPath, [f[0], `:sout=#transcode{vcodec=theo,vb=800,scale=1,acodec=vorb,ab=128,channels=2,samplerate=44100}:file{dst="${f[1]}"}`, 'vlc://quit', '--intf', 'dummy'])
})