www/plugins-dist/medias/lib/getid3/module.graphic.svg.php

   1 <?php
   2 /////////////////////////////////////////////////////////////////
   3 /// getID3() by James Heinrich <info@getid3.org>               //
   4 //  available at http://getid3.sourceforge.net                 //
   5 //            or http://www.getid3.org                         //
   6 //          also https://github.com/JamesHeinrich/getID3       //
   7 /////////////////////////////////////////////////////////////////
   8 // See readme.txt for more details                             //
   9 /////////////////////////////////////////////////////////////////
  10 //                                                             //
  11 // module.graphic.svg.php                                      //
  12 // module for analyzing SVG Image files                        //
  13 // dependencies: NONE                                          //
  14 //                                                            ///
  15 /////////////////////////////////////////////////////////////////
  16
  17
  18 class getid3_svg extends getid3_handler
  19 {
  20
  21
  22         public function Analyze() {
  23                 $info = &$this->getid3->info;
  24
  25                 $this->fseek($info['avdataoffset']);
  26
  27                 $SVGheader = $this->fread(4096);
  28                 if (preg_match('#\<\?xml([^\>]+)\?\>#i', $SVGheader, $matches)) {
  29                         $info['svg']['xml']['raw'] = $matches;
  30                 }
  31                 if (preg_match('#\<\!DOCTYPE([^\>]+)\>#i', $SVGheader, $matches)) {
  32                         $info['svg']['doctype']['raw'] = $matches;
  33                 }
  34                 if (preg_match('#\<svg([^\>]+)\>#i', $SVGheader, $matches)) {
  35                         $info['svg']['svg']['raw'] = $matches;
  36                 }
  37                 if (isset($info['svg']['svg']['raw'])) {
  38
  39                         $sections_to_fix = array('xml', 'doctype', 'svg');
  40                         foreach ($sections_to_fix as $section_to_fix) {
  41                                 if (!isset($info['svg'][$section_to_fix])) {
  42                                         continue;
  43                                 }
  44                                 $section_data = array();
  45                                 while (preg_match('/ "([^"]+)"/', $info['svg'][$section_to_fix]['raw'][1], $matches)) {
  46                                         $section_data[] = $matches[1];
  47                                         $info['svg'][$section_to_fix]['raw'][1] = str_replace($matches[0], '', $info['svg'][$section_to_fix]['raw'][1]);
  48                                 }
  49                                 while (preg_match('/([^\s]+)="([^"]+)"/', $info['svg'][$section_to_fix]['raw'][1], $matches)) {
  50                                         $section_data[] = $matches[0];
  51                                         $info['svg'][$section_to_fix]['raw'][1] = str_replace($matches[0], '', $info['svg'][$section_to_fix]['raw'][1]);
  52                                 }
  53                                 $section_data = array_merge($section_data, preg_split('/[\s,]+/', $info['svg'][$section_to_fix]['raw'][1]));
  54                                 foreach ($section_data as $keyvaluepair) {
  55                                         $keyvaluepair = trim($keyvaluepair);
  56                                         if ($keyvaluepair) {
  57                                                 $keyvalueexploded = explode('=', $keyvaluepair);
  58                                                 $key   = (isset($keyvalueexploded[0]) ? $keyvalueexploded[0] : '');
  59                                                 $value = (isset($keyvalueexploded[1]) ? $keyvalueexploded[1] : '');
  60                                                 $info['svg'][$section_to_fix]['sections'][$key] = trim($value, '"');
  61                                         }
  62                                 }
  63                         }
  64
  65                         $info['fileformat']                  = 'svg';
  66                         $info['video']['dataformat']         = 'svg';
  67                         $info['video']['lossless']           = true;
  68                         //$info['video']['bits_per_sample']    = 24;
  69                         $info['video']['pixel_aspect_ratio'] = (float) 1;
  70
  71                         if (!empty($info['svg']['svg']['sections']['width'])) {
  72                                 $info['svg']['width']  = intval($info['svg']['svg']['sections']['width']);
  73                         }
  74                         if (!empty($info['svg']['svg']['sections']['height'])) {
  75                                 $info['svg']['height'] = intval($info['svg']['svg']['sections']['height']);
  76                         }
  77                         if (!empty($info['svg']['svg']['sections']['version'])) {
  78                                 $info['svg']['version'] = $info['svg']['svg']['sections']['version'];
  79                         }
  80                         if (!isset($info['svg']['version']) && isset($info['svg']['doctype']['sections'])) {
  81                                 foreach ($info['svg']['doctype']['sections'] as $key => $value) {
  82                                         if (preg_match('#//W3C//DTD SVG ([0-9\.]+)//#i', $key, $matches)) {
  83                                                 $info['svg']['version'] = $matches[1];
  84                                                 break;
  85                                         }
  86                                 }
  87                         }
  88
  89                         if (!empty($info['svg']['width'])) {
  90                                 $info['video']['resolution_x'] = $info['svg']['width'];
  91                         }
  92                         if (!empty($info['svg']['height'])) {
  93                                 $info['video']['resolution_y'] = $info['svg']['height'];
  94                         }
  95
  96                         return true;
  97                 }
  98                 $this->error('Did not find expected <svg> tag');
  99                 return false;
 100         }
 101
 102 }