PHP Classes
elePHPant
Icontem

File: class.mediaInfo.php

Recommend this page to a friend!
Stumble It! Stumble It! Bookmark in del.icio.us Bookmark in del.icio.us
  Classes of Gianluca Zanferrari  >  Media Info  >  class.mediaInfo.php  >  Download  
File: class.mediaInfo.php
Role: Application script
Content type: text/plain
Description: main class
Class: Media Info
Retrieve the details of video files with mediainfo
Author: By
Last change:
Date: 2 years ago
Size: 4,513 bytes
 

Contents

Class file image Download
<?php
/*
 * purpose of this class is to retrieve media info from movie/video files
 * NO media file is provided; so you have to use of your own.
 * "mediainfo" dependancy (MEDIAINFO must be installed ...http://mediainfo.sourceforge.net - for ubuntu: sudo apt-get install mediainfo)
 * Tested on debian/ubuntu
 *
*/
class mediaInfo{
    var
$filename;
    var
$media_data;
    var
$arrGeneral;
    var
$arrVideo;
    var
$arrAudio;
   
   
/*
     * Initialize the class
     * Get the media info of the passed file
     */
   
function __construct($filename = ''){
       
       
$mediainfo = trim(shell_exec('type -P mediainfo'));
        if (empty(
$mediainfo)){
            die(
'<h1>Mediainfo is not available</h1>');
        }
       
        if(
$filename != ''){
           
$this->filename = trim($filename);
            if(!
file_exists($this->filename)) die('File does not exists.');
           
$this->filename = escapeshellarg($this->filename);
           
$this->media_data = shell_exec("mediainfo $this->filename");
        }
       
       
$this->make_info_array();
       
    }

   
/*
     * Print a PREformatted info of the media file
     */
   
function print_media_info(){
       
        echo(
'<pre>'.$this->media_data.'</pre>');
       
    }

   
/*
     * Makes 3 arrays with general, video and audio info
     */
   
function make_info_array(){
           
       
$arrData = explode(chr(10),$this->media_data);
       
$general = TRUE;
       
$audio = FALSE;
       
$video = FALSE;
       
$count = 0;
           
        if(
is_array($arrData)){
            foreach(
$arrData as $key=>$val){
               
$arrProperty = explode(': ',$val);
                if(
array_key_exists(1, $arrProperty) && TRUE === $general && $count == 0) $this->arrGeneral[trim($arrProperty[0])] = trim($arrProperty[1]);
                if(
array_key_exists(1, $arrProperty) && TRUE === $video && $count == 1) $this->arrVideo[trim($arrProperty[0])] = trim($arrProperty[1]);
                if(
array_key_exists(1, $arrProperty) && TRUE === $audio && $count == 2) $this->arrAudio[trim($arrProperty[0])] = trim($arrProperty[1]);
                if(
trim($arrProperty[0]) == 'Video' && !array_key_exists(1, $arrProperty)){$general = FALSE; $video = TRUE; $count++;}
                if(
trim($arrProperty[0]) == 'Audio' && !array_key_exists(1, $arrProperty)){$video = FALSE; $audio = TRUE; $count++;}
            }
       
        }
       
    }

   
/*
     * Returns an array with the general info
     */
   
function get_general_info(){
        return(
$this->arrGeneral);
    }
   
   
/*
     * Returns an array with the video info
     */
   
function get_video_info(){
        return(
$this->arrVideo);
    }

   
/*
     * Returns an array with the audio info
     */
   
function get_audio_info(){
        return(
$this->arrAudio);
    }

   
/*
     * Returns an item from the array with the general info
     */
   
function get_general_property($property){
        if(
array_key_exists($property, $this->arrGeneral)){
            return(
$this->arrGeneral[$property]);
        }else{
            return(
'Property does not exists');
        }
    }

   
/*
     * Returns an item from the array with the video info
     */
   
function get_video_property($property){
        if(
array_key_exists($property, $this->arrVideo)){
            return(
$this->arrVideo[$property]);
        }else{
            return(
'Property does not exists');
        }
    }

   
/*
     * Returns an item from the array with the audio info
     */
   
function get_audio_property($property){
        if(
array_key_exists($property, $this->arrAudio)){
            return(
$this->arrAudio[$property]);
        }else{
            return(
'Property does not exists');
        }
    }

   
/*
     * Returns the aspect ratio of a media file
     */
   
function get_aspect_ratio(){
        return(
$this->arrVideo['Display aspect ratio']);
    }

   
/*
     * Returns the width of a media file
     */
   
function get_width(){
        return((int)
str_replace(' ', '', $this->arrVideo['Width']));
    }

   
/*
     * Returns the height of a media file
     */
   
function get_height(){
        return((int)
str_replace(' ', '', $this->arrVideo['Height']));
    }

   
/*
     * Returns the filesize of a media file
     */
   
function get_file_size(){
        return(
$this->arrGeneral['File size']);
    }

}
?>