<?php $dir = './'; // set to current folder if ($handle = opendir($dir)) {  while(false!== ($file = readdir($handle))) {  if ( is_file($dir.$file) ){  if (preg_match("'\.(avi)$'", $file) ){  $sub_file = str_ireplace(".avi", ".srt", $dir.$file);  $idx_file = str_ireplace(".avi", ".idx", $dir.$file);  $thumb_file = str_ireplace(".avi", ".jpg", $dir.$file);  $out_file = str_ireplace(".avi", ".mp4", $dir.$file);  flv_convert_get_thumb($dir.$file, $sub_file, $idx_file, $thumb_file, $out_file);  }  else{  continue;  }  }  }  closedir($handle); } //flv_convert_get_thumb('input.avi', 'input.srt', 'output.jpg', 'output.ogm'); // code provided and updated by steve of phpsnaps ! thanks // accepts: // 1: the input video file // 2: path to thumb jpg // 3: path to transcoded mpeg? function flv_convert_get_thumb($in, $in_sub, $in_idx, $out_thumb, $out_vid){  // get thumbnail  $cmd = 'ffmpeg -v 0 -y -i '.$in.' -vframes 1 -ss 250 -vcodec mjpeg -f rawvideo -s 286x160 -aspect 16:9 '.$out_thumb;  $res = shell_exec($cmd);  // $res is the output of the command  // transcode video $cmd = 'mencoder '.$in.' -o '.$out_vid.' -sub '.$in_sub.' -subfont-text-scale 3.0 -subpos 99 -af volume=10 -aspect 16:9 -of avi -noodml -ovc x264 -x264encop$  $res = shell_exec($cmd); } ?>