module.graphic.jpg.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.jpg.php                                      //
// module for analyzing JPEG Image files                       //
// dependencies: NONE                                          //
//                                                            ///
 
 
class getid3_jpg
{
 
 
        function getid3_jpg(&$fd, &$ThisFileInfo) {
                $ThisFileInfo['fileformat']                  = 'jpg';
                $ThisFileInfo['video']['dataformat']         = 'jpg';
                $ThisFileInfo['video']['lossless']           = false;
                $ThisFileInfo['video']['bits_per_sample']    = 24;
                $ThisFileInfo['video']['pixel_aspect_ratio'] = (float) 1;
 
                fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET);
 
                list($width, $height, $type) = getid3_lib::GetDataImageSize(fread($fd, $ThisFileInfo['filesize']));
                if ($type == 2) {
 
                        $ThisFileInfo['video']['resolution_x'] = $width;
                        $ThisFileInfo['video']['resolution_y'] = $height;
 
                        if (version_compare(phpversion(), '4.2.0', '>=')) {
 
                                if (function_exists('exif_read_data')) {
 
                                        ob_start();
                                        $ThisFileInfo['jpg']['exif'] = exif_read_data($ThisFileInfo['filenamepath'], '', true, false);
                                        $errors = ob_get_contents();
                                        if ($errors) {
                                                $ThisFileInfo['error'][] = strip_tags($errors);
                                                unset($ThisFileInfo['jpg']['exif']);
                                        }
                                        ob_end_clean();
 
                                } else {
 
                                        $ThisFileInfo['warning'][] = 'EXIF parsing only available when '.(GETID3_OS_ISWINDOWS ? 'php_exif.dll enabled' : 'compiled with --enable-exif');
 
                                }
 
                        } else {
 
                                $ThisFileInfo['warning'][] = 'EXIF parsing only available in PHP v4.2.0 and higher compiled with --enable-exif (or php_exif.dll enabled for Windows). You are using PHP v'.phpversion();
 
                        }
 
                        return true;
 
                }
 
                unset($ThisFileInfo['fileformat']);
                return false;
        }
 
}
 
 
?>