module.graphic.svg.php

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<?php
//  available at http://getid3.sourceforge.net                 //
//            or http://www.getid3.org                         //
// See readme.txt for more details                             //
//                                                             //
// module.graphic.svg.php                                      //
// module for analyzing SVG Image files                        //
// dependencies: NONE                                          //
// author: Bryce Harrington <bryceØbryceharrington*org>        //
//                                                            ///
 
 
class getid3_svg
{
 
 
        function getid3_svg(&$fd, &$ThisFileInfo) {
                fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET);
 
                // I'm making this up, please modify as appropriate
                $SVGheader = fread($fd, 32);
                $ThisFileInfo['svg']['magic']  = substr($SVGheader, 0, 4);
                if ($ThisFileInfo['svg']['magic'] == 'aBcD') {
 
                        $ThisFileInfo['fileformat']                  = 'svg';
                        $ThisFileInfo['video']['dataformat']         = 'svg';
                        $ThisFileInfo['video']['lossless']           = true;
                        $ThisFileInfo['video']['bits_per_sample']    = 24;
                        $ThisFileInfo['video']['pixel_aspect_ratio'] = (float) 1;
 
                        $ThisFileInfo['svg']['width']  = getid3_lib::LittleEndian2Int(substr($fileData, 4, 4));
                        $ThisFileInfo['svg']['height'] = getid3_lib::LittleEndian2Int(substr($fileData, 8, 4));
 
                        $ThisFileInfo['video']['resolution_x'] = $ThisFileInfo['svg']['width'];
                        $ThisFileInfo['video']['resolution_y'] = $ThisFileInfo['svg']['height'];
 
                        return true;
                }
                $ThisFileInfo['error'][] = 'Did not find SVG magic bytes "aBcD" at '.$ThisFileInfo['avdataoffset'];
                unset($ThisFileInfo['fileformat']);
                return false;
        }
 
}
 
 
?>