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File: src/PHPVideoToolkit/Binary.php

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  Classes of Oliver Lillie  >  PHP Video Toolkit  >  src/PHPVideoToolkit/Binary.php  >  Download  
File: src/PHPVideoToolkit/Binary.php
Role: Class source
Content type: text/plain
Description: Class source
Class: PHP Video Toolkit
Manipulate and convert videos with ffmpeg program
Author: By
Last change: updated copy right years and a incorrect version number
updated version number in class files
Date: 11 months ago
Size: 3,473 bytes
 

Contents

Class file image Download
<?php
   
   
/**
     * This file is part of the PHP Video Toolkit v2 package.
     *
     * @author Oliver Lillie (aka buggedcom) <publicmail@buggedcom.co.uk>
     * @license Dual licensed under MIT and GPLv2
     * @copyright Copyright (c) 2008-2014 Oliver Lillie <http://www.buggedcom.co.uk>
     * @package PHPVideoToolkit V2
     * @version 2.1.1
     * @uses ffmpeg http://ffmpeg.sourceforge.net/
     */
    
   
namespace PHPVideoToolkit;
   
   
/**
     * Aids in the building of a Process.
     * Ensipired by the ProcessBuilder bundled with Symphony Process component.
     *
     * @access public
     * @author Oliver Lillie
     * @package default
     */
   
class Binary
   
{
       
/**
         * The "which" command (show the full path of a command).
         * This function heavily borrows from Pear::System::which
         *
         * @param string $program The command to search for
         * @param mixed $fallback Value to return if $program is not found
         *
         * @return mixed A string with the full path or false if not found
         * @static
         * @author Stig Bakken <ssb@php.net>
         * @author Oliver Lillie
         */
       
public static function locate($program, $fallback=null)
        {
// enforce API
           
if(is_string($program) === false || empty($program) === true)
            {
                return
$fallback;
            }

// full path given
           
if(basename($program) !== $program)
            {
               
$path_elements = array(dirname($program));
               
$program = basename($program);
            }
            else
            {
// Honor safe mode
               
if(!ini_get('safe_mode') || !($path = ini_get('safe_mode_exec_dir')))
                {
                   
$path = getenv('PATH');
                    if(!
$path)
                    {
                       
$path = getenv('Path'); // some OSes are just stupid enough to do this
                   
}
                }
               
// if we have no path to guess with, throw exception.
               
if(empty($path) === true)
                {
                    throw new
Exception('Unable to guess environment paths. Please set the absolute path to the program "'.$program.'"');
                }
               
               
$path_elements = explode(PATH_SEPARATOR, $path);
            }

            if(
substr(PHP_OS, 0, 3) === 'WIN')
            {
               
$env_pathext = getenv('PATHEXT');
               
$exe_suffixes = empty($env_pathext) === false ? explode(PATH_SEPARATOR, $env_pathext) : array('.exe','.bat','.cmd','.com');
// allow passing a command.exe param
               
if(strpos($program, '.') !== false)
                {
                   
array_unshift($exe_suffixes, '');
                }
            }
            else
            {
               
$exe_suffixes = array('');
            }
           
// loop and fine path.
           
foreach($exe_suffixes as $suff)
            {
                foreach(
$path_elements as $dir)
                {
                   
$file = $dir.DIRECTORY_SEPARATOR.$program.$suff;
                    if(@
is_executable($file) === true)
                    {
                        return
$file;
                    }
                }
            }
           
            throw new
Exception('Unable to locate "'.$program.'"');
        }
    }