Script

$current_path = Get-Location
$start = $current_path
$directories = get-childitem -path $current_path -Recurse -Directory
Foreach ($dir in $directories) {
    Set-Location -literalpath $dir.fullname

    Get-ChildItem *.mkv | where BaseName -notlike '*`[HEVC]' | foreach {
  # Convert the input file and send ffmpeg's output to the display,
  # by piping to Write-Host, rather than trough the pipeline.
  ffmpeg -i $_ -c:v libx265 -c:a copy -x265-params crf=25 "$($_.BaseName) [HEVC].mkv" -y |
    Write-Host
  # Conversion OK? Output the file-info object, which pipes it to Remove-Item.
  if ($LASTEXITCODE -eq 0) { $_ }
} | Remove-Item -force



 }
cd $start
pause