ffmpeg bulk video decoder

ffmpeg.php

<?php

$inputFolder = '/path';
$outputFolder = '/path_output';

$files = glob($inputFolder . '/*');


foreach ($files as $file) {
  $filename = pathinfo($file, PATHINFO_FILENAME);
  $command = "ffmpeg -i \"$file\" -vf \"scale=-1:720\" -crf 23 -preset medium -c:v libx264 -c:a aac -b:a 128k \"$outputFolder/$filename.mkv\"";
  exec($command);
}