/common/libraries/plugin/getid3/module.graphic.jpg.php

<?php

/////////////////////////////////////////////////////////////////
/// getID3() by James Heinrich <info@getid3.org>               //
//  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 __construct(&$fd, &$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);

        

        $imageinfo = array();

        list($width, $height, $type) = getid3_lib :: GetDataImageSize(fread($fd, $ThisFileInfo['filesize']), $imageinfo);

        

        if (isset($imageinfo['APP13']))

        {

            // http://php.net/iptcparse
            // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/IPTC.html
            $iptc_parsed = iptcparse($imageinfo['APP13']);

            if (is_array($iptc_parsed))

            {

                foreach ($iptc_parsed as $iptc_key_raw => $iptc_values)

                {

                    list($iptc_record, $iptc_tagkey) = explode('#', $iptc_key_raw);

                    $iptc_tagkey = intval(ltrim($iptc_tagkey, '0'));

                    foreach ($iptc_values as $key => $value)

                    {

                        @$ThisFileInfo['iptc'][$this->IPTCrecordName($iptc_record)][$this->IPTCrecordTagName($iptc_record, $iptc_tagkey)][] = $value;

                    }

                }

            }

        

     //echo '<pre>'.htmlentities(print_r($iptc_parsed, true)).'</pre>';
        }

        

        switch ($type)

        {

            case 2 : // JPEG
                $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)

                        {

                            $ThisFileInfo['warning'][] = strip_tags($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;

                break;

            

            default :

                break;

        }

        

        unset($ThisFileInfo['fileformat']);

        return false;

    }



    function IPTCrecordName($iptc_record)

    {

        // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/IPTC.html
        static $IPTCrecordName = array();

        if (empty($IPTCrecordName))

        {

            $IPTCrecordName = array(1 => 'IPTCEnvelope', 2 => 'IPTCApplication', 3 => 'IPTCNewsPhoto', 

                    7 => 'IPTCPreObjectData', 8 => 'IPTCObjectData', 9 => 'IPTCPostObjectData');

        }

        return (isset($IPTCrecordName[$iptc_record]) ? $IPTCrecordName[$iptc_record] : '');

    }



    function IPTCrecordTagName($iptc_record, $iptc_tagkey)

    {

        // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/IPTC.html
        static $IPTCrecordTagName = array();

        if (empty($IPTCrecordTagName))

        {

            $IPTCrecordTagName = array(

                    1 => array(// IPTC EnvelopeRecord Tags
0 => 'EnvelopeRecordVersion', 5 => 'Destination', 20 => 'FileFormat', 

                            22 => 'FileVersion', 30 => 'ServiceIdentifier', 40 => 'EnvelopeNumber', 50 => 'ProductID', 

                            60 => 'EnvelopePriority', 70 => 'DateSent', 80 => 'TimeSent', 90 => 'CodedCharacterSet', 

                            100 => 'UniqueObjectName', 120 => 'ARMIdentifier', 122 => 'ARMVersion'), 

                    2 => array(// IPTC ApplicationRecord Tags
0 => 'ApplicationRecordVersion', 3 => 'ObjectTypeReference', 

                            4 => 'ObjectAttributeReference', 5 => 'ObjectName', 7 => 'EditStatus', 

                            8 => 'EditorialUpdate', 10 => 'Urgency', 12 => 'SubjectReference', 15 => 'Category', 

                            20 => 'SupplementalCategories', 22 => 'FixtureIdentifier', 25 => 'Keywords', 

                            26 => 'ContentLocationCode', 27 => 'ContentLocationName', 30 => 'ReleaseDate', 

                            35 => 'ReleaseTime', 37 => 'ExpirationDate', 38 => 'ExpirationTime', 

                            40 => 'SpecialInstructions', 42 => 'ActionAdvised', 45 => 'ReferenceService', 

                            47 => 'ReferenceDate', 50 => 'ReferenceNumber', 55 => 'DateCreated', 60 => 'TimeCreated', 

                            62 => 'DigitalCreationDate', 63 => 'DigitalCreationTime', 65 => 'OriginatingProgram', 

                            70 => 'ProgramVersion', 75 => 'ObjectCycle', 80 => 'By-line', 85 => 'By-lineTitle', 

                            90 => 'City', 92 => 'Sub-location', 95 => 'Province-State', 

                            100 => 'Country-PrimaryLocationCode', 101 => 'Country-PrimaryLocationName', 

                            103 => 'OriginalTransmissionReference', 105 => 'Headline', 110 => 'Credit', 115 => 'Source', 

                            116 => 'CopyrightNotice', 118 => 'Contact', 120 => 'Caption-Abstract', 121 => 'LocalCaption', 

                            122 => 'Writer-Editor', 125 => 'RasterizedCaption', 130 => 'ImageType', 

                            131 => 'ImageOrientation', 135 => 'LanguageIdentifier', 150 => 'AudioType', 

                            151 => 'AudioSamplingRate', 152 => 'AudioSamplingResolution', 153 => 'AudioDuration', 

                            154 => 'AudioOutcue', 184 => 'JobID', 185 => 'MasterDocumentID', 186 => 'ShortDocumentID', 

                            187 => 'UniqueDocumentID', 188 => 'OwnerID', 200 => 'ObjectPreviewFileFormat', 

                            201 => 'ObjectPreviewFileVersion', 202 => 'ObjectPreviewData', 221 => 'Prefs', 

                            225 => 'ClassifyState', 228 => 'SimilarityIndex', 230 => 'DocumentNotes', 

                            231 => 'DocumentHistory', 232 => 'ExifCameraInfo'), 

                    3 => array(// IPTC NewsPhoto Tags
0 => 'NewsPhotoVersion', 10 => 'IPTCPictureNumber', 20 => 'IPTCImageWidth', 

                            30 => 'IPTCImageHeight', 40 => 'IPTCPixelWidth', 50 => 'IPTCPixelHeight', 

                            55 => 'SupplementalType', 60 => 'ColorRepresentation', 64 => 'InterchangeColorSpace', 

                            65 => 'ColorSequence', 66 => 'ICC_Profile', 70 => 'ColorCalibrationMatrix', 

                            80 => 'LookupTable', 84 => 'NumIndexEntries', 85 => 'ColorPalette', 

                            86 => 'IPTCBitsPerSample', 90 => 'SampleStructure', 100 => 'ScanningDirection', 

                            102 => 'IPTCImageRotation', 110 => 'DataCompressionMethod', 120 => 'QuantizationMethod', 

                            125 => 'EndPoints', 130 => 'ExcursionTolerance', 135 => 'BitsPerComponent', 

                            140 => 'MaximumDensityRange', 145 => 'GammaCompensatedValue'), 

                    7 => array(// IPTC PreObjectData Tags
10 => 'SizeMode', 20 => 'MaxSubfileSize', 90 => 'ObjectSizeAnnounced', 

                            95 => 'MaximumObjectSize'), 8 => array(// IPTC ObjectData Tags
10 => 'SubFile'), 

                    9 => array(// IPTC PostObjectData Tags
10 => 'ConfirmedObjectSize'));

        

        }

        return (isset($IPTCrecordTagName[$iptc_record][$iptc_tagkey]) ? $IPTCrecordTagName[$iptc_record][$iptc_tagkey] : $iptc_tagkey);

    }



}



?>