Batch video convert from flv to mp4 via Linux CMD use avconv binary

gistfile1.txt

#!/usr/bin/php
<?php

$folder = dirname(__FILE__)."/";
//or you can set this by manual
//$folder = "/var/www/lorem/ipsum/"

$outputFolder = "mp4/";
$from = ".flv";
$to = ".mp4";

//enter to directory
chdir($folder);

/**
* Examples to convert and install
* # apt-get install libav-tools
* Convert a FLV file to MP4, preserving audio & video:
* $ avconv -i input.flv -codec copy output.mp4
* To extract audio only:
* $ avconv -i input.flv -codec copy -vn output_a.mp4
* To extract video only:
* $ avconv -i input.flv -codec copy -an output_v.mp4
*/


foreach(glob($folder.'*.[fF][lL][vV]') as $fileName){

	$file = str_replace($folder, "", $fileName);
	$correctedFileName = (strtolower(str_replace(" ", "_", $file)));
	$newFileName = str_replace(array($from, " "), array($to, "\ "), $correctedFileName);
	
	rename($file, $correctedFileName);

	$result = false;
	$status = false;
	//sudo apt-get install avconv
	$command = "avconv -i {$correctedFileName} -codec copy {$outputFolder}/{$newFileName}";
	$escaped_command = escapeshellcmd($command);
	exec($escaped_command, $result, $status);
	var_dump($file, $correctedFileName, $newFileName, $escaped_command, $result, $status);echo "\n\n\n";
}