can a directory and encode the media using scene 2016 standards

encode.php

<?php
/**
 * Created by PhpStorm.
 * User: don
 * Date: 2/22/2019
 * Time: 10:11 AM
 * Scan a directory and encode the media using scene 2016 standards
 * this will ouput a bash script (could be modified at line 27 to exec instead of echo to execute 
 * 
 * Usage::  
 * php encode.php > mymyscript.sh
 * chmod 700 myscript.sh 
 * nohup ./myscript.sh & 
 * 
 */

$extension = '.mp4';
$subdir = 'encoded';
$videoFilePath = '/mnt/vault/Media/';

$dm = new directorySearcher($videoFilePath, $extension);


foreach ($dm->files as $file) {
    $fm = new fileManager($file,$extension,$subdir);
    $ff = new encoder($fm);
    echo "ffmpeg command => " . $ff->command . "\n";
}


class encoder {


public $command;

    public function __construct($inputFM)
    {

        $template = 'ffmpeg -i "%s" -filter:v scale=-1:-1 -c:v libx264 -crf 19 -preset slow -level 4.1 -sws_flags lanczos -tune animation -c:a aac -vbr 5 -map 0 -c:s copy -strict -2 "%s"';
        $this->command = sprintf($template,$inputFM->origFileFull, $inputFM->newFileFull);

    }


}


class fileManager
{

    public $origFileFull;
    public $newFileFull;
    public $outputPath;
    public $inputPath;

    public function __construct($fullFilePath, $extension, $outputSubDirectory)
    {
        $file = new SplFileInfo($fullFilePath);
        $orig_file = $file->getBasename($extension);

        $this->inputPath = $file->getPath();
        $this->origFileFull = $this->inputPath . DIRECTORY_SEPARATOR . $orig_file . $extension;
        $this->outputPath = $this->inputPath . DIRECTORY_SEPARATOR . $outputSubDirectory . DIRECTORY_SEPARATOR;
        $this->newFileFull = $this->outputPath . $orig_file . $extension;

        if (!file_exists($this->outputPath)) {
            mkdir($this->outputPath, 0777, true);
        }
    }
}

class directorySearcher
{

    public $files ;
    function __construct($path, $filterExtension)
    {
        $real_path = rtrim($path, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR;
        $mask = '*{' . $filterExtension . '}';
        $pattern = $real_path.$mask;
        $this->files = glob($pattern, GLOB_BRACE);
    }
}