$location = Get-Location
$files = Get-ChildItem $location -Filter "*.mp4" | Sort-Object CreationTime
$bitrate = "12M"

# Create directory .\transcoded if it doesn't exist
if (Test-Path ".\transcoded" -PathType Container) {
  Write-Host ".\transcoded already exists!"
} else {
  Write-Host "Creating .\transcoded"
  New-Item ".\transcoded" -ItemType Directory
}
# Create directory .\original if it doesn't exist
if (Test-Path ".\original" -PathType Container) {
  Write-Host ".\original already exists!"
} else {
  Write-Host "Creating .\original"
  New-Item ".\original" -ItemType Directory
}

foreach ($file in $files) {
  $arguments = "-loglevel error -hwaccel cuvid -c:v h264_cuvid -i ""$file"" -c:v h264_nvenc -c:a copy -b:v $bitrate ""transcoded\$file"""
  Write-Host "Transcoding ""$file"" -> ""transcoded\$file"""
  Start-Process -Wait -NoNewWindow -FilePath "ffmpeg.exe" -WorkingDirectory $location -ArgumentList $arguments
  Write-Host "Moving ""$file"" -> ""original\$file"""
  Move-Item -Path $file -Destination "original\$file"
}