155efc227SAndreas Gohr<?php 255efc227SAndreas Gohr/** 355efc227SAndreas Gohr * JPEG metadata reader/writer 455efc227SAndreas Gohr * 555efc227SAndreas Gohr * @license PHP license 2.0 (http://www.php.net/license/2_02.txt) 655efc227SAndreas Gohr * @link 755efc227SAndreas Gohr * @author Sebastian Delmont <sdelmont@zonageek.com> 855efc227SAndreas Gohr * @author Andreas Gohr <andi@splitbrain.org> 955efc227SAndreas Gohr */ 1055efc227SAndreas Gohr 1155efc227SAndreas Gohr// This class is a modified and enhanced version of the JPEG class by 1255efc227SAndreas Gohr// Sebastian Delmont. Original Copyright notice follows: 1355efc227SAndreas Gohr// 1455efc227SAndreas Gohr// +----------------------------------------------------------------------+ 1555efc227SAndreas Gohr// | PHP version 4.0 | 1655efc227SAndreas Gohr// +----------------------------------------------------------------------+ 1755efc227SAndreas Gohr// | Copyright (c) 1997, 1998, 1999, 2000, 2001 The PHP Group | 1855efc227SAndreas Gohr// +----------------------------------------------------------------------+ 1955efc227SAndreas Gohr// | This source file is subject to version 2.0 of the PHP license, | 2055efc227SAndreas Gohr// | that is bundled with this package in the file LICENSE, and is | 2155efc227SAndreas Gohr// | available at through the world-wide-web at | 2255efc227SAndreas Gohr// | http://www.php.net/license/2_02.txt. | 2355efc227SAndreas Gohr// | If you did not receive a copy of the PHP license and are unable to | 2455efc227SAndreas Gohr// | obtain it through the world-wide-web, please send a note to | 2555efc227SAndreas Gohr// | license@php.net so we can mail you a copy immediately. | 2655efc227SAndreas Gohr// +----------------------------------------------------------------------+ 2755efc227SAndreas Gohr// | Authors: Sebastian Delmont <sdelmont@zonageek.com> | 2855efc227SAndreas Gohr// +----------------------------------------------------------------------+ 2955efc227SAndreas Gohr 3055efc227SAndreas Gohrclass JpegMeta 3155efc227SAndreas Gohr{ 3255efc227SAndreas Gohr var $_fileName; 3355efc227SAndreas Gohr var $_fp = null; 3455efc227SAndreas Gohr var $_type = 'unknown'; 3555efc227SAndreas Gohr 3655efc227SAndreas Gohr var $_markers; 3755efc227SAndreas Gohr var $_info; 3855efc227SAndreas Gohr 3955efc227SAndreas Gohr 4055efc227SAndreas Gohr /** 4155efc227SAndreas Gohr * Constructor 4255efc227SAndreas Gohr * 4355efc227SAndreas Gohr * @author Sebastian Delmont <sdelmont@zonageek.com> 4455efc227SAndreas Gohr */ 4555efc227SAndreas Gohr function JpegMeta($fileName) 4655efc227SAndreas Gohr { 4755efc227SAndreas Gohr 4855efc227SAndreas Gohr $this->_fileName = $fileName; 4955efc227SAndreas Gohr 5055efc227SAndreas Gohr $this->_fp = null; 5155efc227SAndreas Gohr $this->_type = 'unknown'; 5255efc227SAndreas Gohr 5355efc227SAndreas Gohr unset($this->_info); 5455efc227SAndreas Gohr unset($this->_markers); 5555efc227SAndreas Gohr } 5655efc227SAndreas Gohr 5755efc227SAndreas Gohr /** 5855efc227SAndreas Gohr * Returns all gathered info as multidim array 5955efc227SAndreas Gohr * 6055efc227SAndreas Gohr * @author Sebastian Delmont <sdelmont@zonageek.com> 6155efc227SAndreas Gohr */ 6255efc227SAndreas Gohr function & getRawInfo() 6355efc227SAndreas Gohr { 6455efc227SAndreas Gohr $this->_parseAll(); 6555efc227SAndreas Gohr 6655efc227SAndreas Gohr if ($this->_markers == null) { 6755efc227SAndreas Gohr return false; 6855efc227SAndreas Gohr } 6955efc227SAndreas Gohr 7055efc227SAndreas Gohr return $this->_info; 7155efc227SAndreas Gohr } 7255efc227SAndreas Gohr 7355efc227SAndreas Gohr /** 7455efc227SAndreas Gohr * Returns basic image info 7555efc227SAndreas Gohr * 7655efc227SAndreas Gohr * @author Sebastian Delmont <sdelmont@zonageek.com> 7755efc227SAndreas Gohr */ 7855efc227SAndreas Gohr function & getBasicInfo() 7955efc227SAndreas Gohr { 8055efc227SAndreas Gohr $this->_parseAll(); 8155efc227SAndreas Gohr 8255efc227SAndreas Gohr $info = array(); 8355efc227SAndreas Gohr 8455efc227SAndreas Gohr if ($this->_markers == null) { 8555efc227SAndreas Gohr return false; 8655efc227SAndreas Gohr } 8755efc227SAndreas Gohr 8855efc227SAndreas Gohr $info['Name'] = $this->_info['file']['Name']; 8955efc227SAndreas Gohr if (isset($this->_info['file']['Url'])) { 9055efc227SAndreas Gohr $info['Url'] = $this->_info['file']['Url']; 9155efc227SAndreas Gohr $info['NiceSize'] = "???KB"; 9255efc227SAndreas Gohr } 9355efc227SAndreas Gohr else { 9455efc227SAndreas Gohr $info['Size'] = $this->_info['file']['Size']; 9555efc227SAndreas Gohr $info['NiceSize'] = $this->_info['file']['NiceSize']; 9655efc227SAndreas Gohr } 9755efc227SAndreas Gohr 9855efc227SAndreas Gohr if (@isset($this->_info['sof']['Format'])) { 9955efc227SAndreas Gohr $info['Format'] = $this->_info['sof']['Format'] . " JPEG"; 10055efc227SAndreas Gohr } 10155efc227SAndreas Gohr else { 10255efc227SAndreas Gohr $info['Format'] = $this->_info['sof']['Format'] . " JPEG"; 10355efc227SAndreas Gohr } 10455efc227SAndreas Gohr 10555efc227SAndreas Gohr if (@isset($this->_info['sof']['ColorChannels'])) { 10655efc227SAndreas Gohr $info['ColorMode'] = ($this->_info['sof']['ColorChannels'] > 1) ? "Color" : "B&W"; 10755efc227SAndreas Gohr } 10855efc227SAndreas Gohr 10955efc227SAndreas Gohr $info['Width'] = $this->getWidth(); 11055efc227SAndreas Gohr $info['Height'] = $this->getHeight(); 11155efc227SAndreas Gohr $info['DimStr'] = $this->getDimStr(); 11255efc227SAndreas Gohr 11355efc227SAndreas Gohr $dates = $this->getDates(); 11455efc227SAndreas Gohr 11555efc227SAndreas Gohr $info['DateTime'] = $dates['EarliestTime']; 11655efc227SAndreas Gohr $info['DateTimeStr'] = $dates['EarliestTimeStr']; 11755efc227SAndreas Gohr 11855efc227SAndreas Gohr $info['HasThumbnail'] = $this->hasThumbnail(); 11955efc227SAndreas Gohr 12055efc227SAndreas Gohr return $info; 12155efc227SAndreas Gohr } 12255efc227SAndreas Gohr 12355efc227SAndreas Gohr 12455efc227SAndreas Gohr /** 12555efc227SAndreas Gohr * Convinience function to access nearly all available Data 12655efc227SAndreas Gohr * through one function 12755efc227SAndreas Gohr * 12855efc227SAndreas Gohr * @author Andreas Gohr <andi@splitbrain.org> 12955efc227SAndreas Gohr */ 13055efc227SAndreas Gohr function getField($fields) 13155efc227SAndreas Gohr { 13255efc227SAndreas Gohr if(!is_array($fields)) $fields = array($fields); 13355efc227SAndreas Gohr $info = false; 13455efc227SAndreas Gohr foreach($fields as $field){ 13555efc227SAndreas Gohr if(strtolower(substr($field,0,5)) == 'iptc.'){ 13655efc227SAndreas Gohr $info = $this->getIPTCField(substr($field,5)); 13755efc227SAndreas Gohr }elseif(strtolower(substr($field,0,5)) == 'exif.'){ 13855efc227SAndreas Gohr $info = $this->getExifField(substr($field,5)); 13955efc227SAndreas Gohr }elseif(strtolower(substr($field,0,5)) == 'file.'){ 14055efc227SAndreas Gohr $info = $this->getFileField(substr($field,5)); 14155efc227SAndreas Gohr }elseif(strtolower(substr($field,0,5)) == 'date.'){ 14255efc227SAndreas Gohr $info = $this->getDateField(substr($field,5)); 14355efc227SAndreas Gohr }elseif(strtolower($field) == 'simple.camera'){ 14455efc227SAndreas Gohr $info = $this->getCamera(); 14555efc227SAndreas Gohr }elseif(strtolower($field) == 'simple.raw'){ 14655efc227SAndreas Gohr return $this->getRawInfo(); 14755efc227SAndreas Gohr }elseif(strtolower($field) == 'simple.title'){ 14855efc227SAndreas Gohr $info = $this->getTitle(); 14955efc227SAndreas Gohr }else{ 15055efc227SAndreas Gohr $info = $this->getExifField($field); 15155efc227SAndreas Gohr } 15255efc227SAndreas Gohr if($info != false) break; 15355efc227SAndreas Gohr } 15455efc227SAndreas Gohr 15555efc227SAndreas Gohr if($info === false) $info = $alt; 15655efc227SAndreas Gohr if(is_array($info)){ 15755efc227SAndreas Gohr if(isset($info['val'])){ 15855efc227SAndreas Gohr $info = $info['val']; 15955efc227SAndreas Gohr }else{ 16055efc227SAndreas Gohr $info = join(', ',$info); 16155efc227SAndreas Gohr } 16255efc227SAndreas Gohr } 16355efc227SAndreas Gohr return trim($info); 16455efc227SAndreas Gohr } 16555efc227SAndreas Gohr 16655efc227SAndreas Gohr /** 16755efc227SAndreas Gohr * Return a date field 16855efc227SAndreas Gohr * 16955efc227SAndreas Gohr * @author Andreas Gohr <andi@splitbrain.org> 17055efc227SAndreas Gohr */ 17155efc227SAndreas Gohr function getDateField($field) 17255efc227SAndreas Gohr { 17355efc227SAndreas Gohr if (!isset($this->_info['dates'])) { 17455efc227SAndreas Gohr $this->_info['dates'] = $this->getDates(); 17555efc227SAndreas Gohr } 17655efc227SAndreas Gohr 17755efc227SAndreas Gohr if (isset($this->_info['dates'][$field])) { 17855efc227SAndreas Gohr return $this->_info['dates'][$field]; 17955efc227SAndreas Gohr } 18055efc227SAndreas Gohr 18155efc227SAndreas Gohr return false; 18255efc227SAndreas Gohr } 18355efc227SAndreas Gohr 18455efc227SAndreas Gohr /** 18555efc227SAndreas Gohr * Return a file info field 18655efc227SAndreas Gohr * 18755efc227SAndreas Gohr * @author Andreas Gohr <andi@splitbrain.org> 18855efc227SAndreas Gohr */ 18955efc227SAndreas Gohr function getFileField($field) 19055efc227SAndreas Gohr { 19155efc227SAndreas Gohr if (!isset($this->_info['file'])) { 19255efc227SAndreas Gohr $this->_parseFileInfo(); 19355efc227SAndreas Gohr } 19455efc227SAndreas Gohr 19555efc227SAndreas Gohr if (isset($this->_info['file'][$field])) { 19655efc227SAndreas Gohr return $this->_info['file'][$field]; 19755efc227SAndreas Gohr } 19855efc227SAndreas Gohr 19955efc227SAndreas Gohr return false; 20055efc227SAndreas Gohr } 20155efc227SAndreas Gohr 20255efc227SAndreas Gohr /** 20355efc227SAndreas Gohr * Return the camera info (Maker and Model) 20455efc227SAndreas Gohr * 20555efc227SAndreas Gohr * @author Andreas Gohr <andi@splitbrain.org> 20655efc227SAndreas Gohr * @todo handle makernotes 20755efc227SAndreas Gohr */ 20855efc227SAndreas Gohr function getCamera(){ 20955efc227SAndreas Gohr $make = $this->getField(array('Exif.Make','Exif.TIFFMake')); 21055efc227SAndreas Gohr $model = $this->getField(array('Exif.Model','Exif.TIFFModel')); 21155efc227SAndreas Gohr $cam = trim("$make $model"); 21255efc227SAndreas Gohr if(empty($cam)) return false; 21355efc227SAndreas Gohr return $cam; 21455efc227SAndreas Gohr } 21555efc227SAndreas Gohr 21655efc227SAndreas Gohr /** 21755efc227SAndreas Gohr * Return an EXIF field 21855efc227SAndreas Gohr * 21955efc227SAndreas Gohr * @author Sebastian Delmont <sdelmont@zonageek.com> 22055efc227SAndreas Gohr */ 22155efc227SAndreas Gohr function getExifField($field) 22255efc227SAndreas Gohr { 22355efc227SAndreas Gohr if (!isset($this->_info['exif'])) { 22455efc227SAndreas Gohr $this->_parseMarkerExif(); 22555efc227SAndreas Gohr } 22655efc227SAndreas Gohr 22755efc227SAndreas Gohr if ($this->_markers == null) { 22855efc227SAndreas Gohr return false; 22955efc227SAndreas Gohr } 23055efc227SAndreas Gohr 23155efc227SAndreas Gohr if (isset($this->_info['exif'][$field])) { 23255efc227SAndreas Gohr return $this->_info['exif'][$field]; 23355efc227SAndreas Gohr } 23455efc227SAndreas Gohr 23555efc227SAndreas Gohr return false; 23655efc227SAndreas Gohr } 23755efc227SAndreas Gohr 23855efc227SAndreas Gohr /** 23955efc227SAndreas Gohr * Return an Adobe Field 24055efc227SAndreas Gohr * 24155efc227SAndreas Gohr * @author Sebastian Delmont <sdelmont@zonageek.com> 24255efc227SAndreas Gohr */ 24355efc227SAndreas Gohr function getAdobeField($field) 24455efc227SAndreas Gohr { 24555efc227SAndreas Gohr if (!isset($this->_info['adobe'])) { 24655efc227SAndreas Gohr $this->_parseMarkerAdobe(); 24755efc227SAndreas Gohr } 24855efc227SAndreas Gohr 24955efc227SAndreas Gohr if ($this->_markers == null) { 25055efc227SAndreas Gohr return false; 25155efc227SAndreas Gohr } 25255efc227SAndreas Gohr 25355efc227SAndreas Gohr if (isset($this->_info['adobe'][$field])) { 25455efc227SAndreas Gohr return $this->_info['adobe'][$field]; 25555efc227SAndreas Gohr } 25655efc227SAndreas Gohr 25755efc227SAndreas Gohr return false; 25855efc227SAndreas Gohr } 25955efc227SAndreas Gohr 26055efc227SAndreas Gohr /** 26155efc227SAndreas Gohr * Return an IPTC field 26255efc227SAndreas Gohr * 26355efc227SAndreas Gohr * @author Sebastian Delmont <sdelmont@zonageek.com> 26455efc227SAndreas Gohr */ 26555efc227SAndreas Gohr function getIPTCField($field) 26655efc227SAndreas Gohr { 26755efc227SAndreas Gohr if (!isset($this->_info['iptc'])) { 26855efc227SAndreas Gohr $this->_parseMarkerAdobe(); 26955efc227SAndreas Gohr } 27055efc227SAndreas Gohr 27155efc227SAndreas Gohr if ($this->_markers == null) { 27255efc227SAndreas Gohr return false; 27355efc227SAndreas Gohr } 27455efc227SAndreas Gohr 27555efc227SAndreas Gohr if (isset($this->_info['iptc'][$field])) { 27655efc227SAndreas Gohr return $this->_info['iptc'][$field]; 27755efc227SAndreas Gohr } 27855efc227SAndreas Gohr 27955efc227SAndreas Gohr return false; 28055efc227SAndreas Gohr } 28155efc227SAndreas Gohr 28255efc227SAndreas Gohr /** 28355efc227SAndreas Gohr * Set an EXIF field 28455efc227SAndreas Gohr * 28555efc227SAndreas Gohr * @author Sebastian Delmont <sdelmont@zonageek.com> 28655efc227SAndreas Gohr */ 28755efc227SAndreas Gohr function setExifField($field, $value) 28855efc227SAndreas Gohr { 28955efc227SAndreas Gohr if (!isset($this->_info['exif'])) { 29055efc227SAndreas Gohr $this->_parseMarkerExif(); 29155efc227SAndreas Gohr } 29255efc227SAndreas Gohr 29355efc227SAndreas Gohr if ($this->_markers == null) { 29455efc227SAndreas Gohr return false; 29555efc227SAndreas Gohr } 29655efc227SAndreas Gohr 29755efc227SAndreas Gohr if ($this->_info['exif'] == false) { 29855efc227SAndreas Gohr $this->_info['exif'] = array(); 29955efc227SAndreas Gohr } 30055efc227SAndreas Gohr 30155efc227SAndreas Gohr $this->_info['exif'][$field] = $value; 30255efc227SAndreas Gohr 30355efc227SAndreas Gohr return true; 30455efc227SAndreas Gohr } 30555efc227SAndreas Gohr 30655efc227SAndreas Gohr /** 30755efc227SAndreas Gohr * Set an Adobe Field 30855efc227SAndreas Gohr * 30955efc227SAndreas Gohr * @author Sebastian Delmont <sdelmont@zonageek.com> 31055efc227SAndreas Gohr */ 31155efc227SAndreas Gohr function setAdobeField($field, $value) 31255efc227SAndreas Gohr { 31355efc227SAndreas Gohr if (!isset($this->_info['adobe'])) { 31455efc227SAndreas Gohr $this->_parseMarkerAdobe(); 31555efc227SAndreas Gohr } 31655efc227SAndreas Gohr 31755efc227SAndreas Gohr if ($this->_markers == null) { 31855efc227SAndreas Gohr return false; 31955efc227SAndreas Gohr } 32055efc227SAndreas Gohr 32155efc227SAndreas Gohr if ($this->_info['adobe'] == false) { 32255efc227SAndreas Gohr $this->_info['adobe'] = array(); 32355efc227SAndreas Gohr } 32455efc227SAndreas Gohr 32555efc227SAndreas Gohr $this->_info['adobe'][$field] = $value; 32655efc227SAndreas Gohr 32755efc227SAndreas Gohr return true; 32855efc227SAndreas Gohr } 32955efc227SAndreas Gohr 33055efc227SAndreas Gohr /** 331*23a34783SAndreas Gohr * Calculates the multiplier needed to resize the image to the given 332*23a34783SAndreas Gohr * dimensions 333*23a34783SAndreas Gohr * 334*23a34783SAndreas Gohr * @author Andreas Gohr <andi@splitbrain.org> 335*23a34783SAndreas Gohr */ 336*23a34783SAndreas Gohr function getResizeRatio($maxwidth,$maxheight=0){ 337*23a34783SAndreas Gohr if(!$maxheight) $maxheight = $maxwidth; 338*23a34783SAndreas Gohr 339*23a34783SAndreas Gohr $w = $this->getField('File.Width'); 340*23a34783SAndreas Gohr $h = $this->getField('File.Height'); 341*23a34783SAndreas Gohr 342*23a34783SAndreas Gohr $ratio = 1; 343*23a34783SAndreas Gohr if($w >= $h){ 344*23a34783SAndreas Gohr if($w >= $maxwidth){ 345*23a34783SAndreas Gohr $ratio = $maxwidth/$w; 346*23a34783SAndreas Gohr }elseif($h > $maxheight){ 347*23a34783SAndreas Gohr $ratio = $maxheight/$h; 348*23a34783SAndreas Gohr } 349*23a34783SAndreas Gohr }else{ 350*23a34783SAndreas Gohr if($h >= $maxheight){ 351*23a34783SAndreas Gohr $ratio = $maxheight/$h; 352*23a34783SAndreas Gohr }elseif($w > $maxwidth){ 353*23a34783SAndreas Gohr $ratio = $maxwidth/$w; 354*23a34783SAndreas Gohr } 355*23a34783SAndreas Gohr } 356*23a34783SAndreas Gohr return $ratio; 357*23a34783SAndreas Gohr } 358*23a34783SAndreas Gohr 359*23a34783SAndreas Gohr 360*23a34783SAndreas Gohr /** 36155efc227SAndreas Gohr * Set an IPTC field 36255efc227SAndreas Gohr * 36355efc227SAndreas Gohr * @author Sebastian Delmont <sdelmont@zonageek.com> 36455efc227SAndreas Gohr */ 36555efc227SAndreas Gohr function setIPTCField($field, $value) 36655efc227SAndreas Gohr { 36755efc227SAndreas Gohr if (!isset($this->_info['iptc'])) { 36855efc227SAndreas Gohr $this->_parseMarkerAdobe(); 36955efc227SAndreas Gohr } 37055efc227SAndreas Gohr 37155efc227SAndreas Gohr if ($this->_markers == null) { 37255efc227SAndreas Gohr return false; 37355efc227SAndreas Gohr } 37455efc227SAndreas Gohr 37555efc227SAndreas Gohr if ($this->_info['iptc'] == false) { 37655efc227SAndreas Gohr $this->_info['iptc'] = array(); 37755efc227SAndreas Gohr } 37855efc227SAndreas Gohr 37955efc227SAndreas Gohr $this->_info['iptc'][$field] = $value; 38055efc227SAndreas Gohr 38155efc227SAndreas Gohr return true; 38255efc227SAndreas Gohr } 38355efc227SAndreas Gohr 38455efc227SAndreas Gohr /** 38555efc227SAndreas Gohr * Delete an EXIF field 38655efc227SAndreas Gohr * 38755efc227SAndreas Gohr * @author Sebastian Delmont <sdelmont@zonageek.com> 38855efc227SAndreas Gohr */ 38955efc227SAndreas Gohr function deleteExifField($field) 39055efc227SAndreas Gohr { 39155efc227SAndreas Gohr if (!isset($this->_info['exif'])) { 39255efc227SAndreas Gohr $this->_parseMarkerAdobe(); 39355efc227SAndreas Gohr } 39455efc227SAndreas Gohr 39555efc227SAndreas Gohr if ($this->_markers == null) { 39655efc227SAndreas Gohr return false; 39755efc227SAndreas Gohr } 39855efc227SAndreas Gohr 39955efc227SAndreas Gohr if ($this->_info['exif'] != false) { 40055efc227SAndreas Gohr unset($this->_info['exif'][$field]); 40155efc227SAndreas Gohr } 40255efc227SAndreas Gohr 40355efc227SAndreas Gohr return true; 40455efc227SAndreas Gohr } 40555efc227SAndreas Gohr 40655efc227SAndreas Gohr /** 40755efc227SAndreas Gohr * Delete an Adobe field 40855efc227SAndreas Gohr * 40955efc227SAndreas Gohr * @author Sebastian Delmont <sdelmont@zonageek.com> 41055efc227SAndreas Gohr */ 41155efc227SAndreas Gohr function deleteAdobeField($field) 41255efc227SAndreas Gohr { 41355efc227SAndreas Gohr if (!isset($this->_info['adobe'])) { 41455efc227SAndreas Gohr $this->_parseMarkerAdobe(); 41555efc227SAndreas Gohr } 41655efc227SAndreas Gohr 41755efc227SAndreas Gohr if ($this->_markers == null) { 41855efc227SAndreas Gohr return false; 41955efc227SAndreas Gohr } 42055efc227SAndreas Gohr 42155efc227SAndreas Gohr if ($this->_info['adobe'] != false) { 42255efc227SAndreas Gohr unset($this->_info['adobe'][$field]); 42355efc227SAndreas Gohr } 42455efc227SAndreas Gohr 42555efc227SAndreas Gohr return true; 42655efc227SAndreas Gohr } 42755efc227SAndreas Gohr 42855efc227SAndreas Gohr /** 42955efc227SAndreas Gohr * Delete an IPTC field 43055efc227SAndreas Gohr * 43155efc227SAndreas Gohr * @author Sebastian Delmont <sdelmont@zonageek.com> 43255efc227SAndreas Gohr */ 43355efc227SAndreas Gohr function deleteIPTCField($field) 43455efc227SAndreas Gohr { 43555efc227SAndreas Gohr if (!isset($this->_info['iptc'])) { 43655efc227SAndreas Gohr $this->_parseMarkerAdobe(); 43755efc227SAndreas Gohr } 43855efc227SAndreas Gohr 43955efc227SAndreas Gohr if ($this->_markers == null) { 44055efc227SAndreas Gohr return false; 44155efc227SAndreas Gohr } 44255efc227SAndreas Gohr 44355efc227SAndreas Gohr if ($this->_info['iptc'] != false) { 44455efc227SAndreas Gohr unset($this->_info['iptc'][$field]); 44555efc227SAndreas Gohr } 44655efc227SAndreas Gohr 44755efc227SAndreas Gohr return true; 44855efc227SAndreas Gohr } 44955efc227SAndreas Gohr 45055efc227SAndreas Gohr /** 45155efc227SAndreas Gohr * Get the image's title, tries various fields 45255efc227SAndreas Gohr * 45355efc227SAndreas Gohr * @param int $max maximum number chars (keeps words) 45455efc227SAndreas Gohr * @author Andreas Gohr <andi@splitbrain.org> 45555efc227SAndreas Gohr */ 45655efc227SAndreas Gohr function getTitle($max=80){ 45755efc227SAndreas Gohr $cap = ''; 45855efc227SAndreas Gohr 45955efc227SAndreas Gohr // try various fields 46055efc227SAndreas Gohr $cap = $this->getField(array('Iptc.Headline', 46155efc227SAndreas Gohr 'Iptc.Caption', 46255efc227SAndreas Gohr 'Exif.UserComment', 46355efc227SAndreas Gohr 'Exif.TIFFUserComment', 4642684e50aSAndreas Gohr 'Exif.TIFFImageDescription', 4652684e50aSAndreas Gohr 'File.Name')); 46655efc227SAndreas Gohr if (empty($cap)) return false; 46755efc227SAndreas Gohr 46855efc227SAndreas Gohr if(!$max) return $cap; 46955efc227SAndreas Gohr // Shorten to 80 chars (keeping words) 47055efc227SAndreas Gohr $new = preg_replace('/\n.+$/','',wordwrap($cap, $max)); 47155efc227SAndreas Gohr if($new != $cap) $new .= '...'; 47255efc227SAndreas Gohr 47355efc227SAndreas Gohr return $new; 47455efc227SAndreas Gohr } 47555efc227SAndreas Gohr 47655efc227SAndreas Gohr /** 47755efc227SAndreas Gohr * Gather various date fields 47855efc227SAndreas Gohr * 47955efc227SAndreas Gohr * @author Sebastian Delmont <sdelmont@zonageek.com> 48055efc227SAndreas Gohr */ 48155efc227SAndreas Gohr function getDates() 48255efc227SAndreas Gohr { 48355efc227SAndreas Gohr $this->_parseAll(); 48455efc227SAndreas Gohr 48555efc227SAndreas Gohr if ($this->_markers == null) { 48655efc227SAndreas Gohr return false; 48755efc227SAndreas Gohr } 48855efc227SAndreas Gohr 48955efc227SAndreas Gohr $dates = array(); 49055efc227SAndreas Gohr 49155efc227SAndreas Gohr $latestTime = 0; 49255efc227SAndreas Gohr $latestTimeSource = ""; 49355efc227SAndreas Gohr $earliestTime = time(); 49455efc227SAndreas Gohr $earliestTimeSource = ""; 49555efc227SAndreas Gohr 49655efc227SAndreas Gohr if (@isset($this->_info['exif']['DateTime'])) { 49755efc227SAndreas Gohr $dates['ExifDateTime'] = $this->_info['exif']['DateTime']; 49855efc227SAndreas Gohr 49955efc227SAndreas Gohr $aux = $this->_info['exif']['DateTime']; 50055efc227SAndreas Gohr $aux{4} = "-"; 50155efc227SAndreas Gohr $aux{7} = "-"; 50255efc227SAndreas Gohr $t = strtotime($aux); 50355efc227SAndreas Gohr 50455efc227SAndreas Gohr if ($t > $latestTime) { 50555efc227SAndreas Gohr $latestTime = $t; 50655efc227SAndreas Gohr $latestTimeSource = "ExifDateTime"; 50755efc227SAndreas Gohr } 50855efc227SAndreas Gohr 50955efc227SAndreas Gohr if ($t < $earliestTime) { 51055efc227SAndreas Gohr $earliestTime = $t; 51155efc227SAndreas Gohr $earliestTimeSource = "ExifDateTime"; 51255efc227SAndreas Gohr } 51355efc227SAndreas Gohr } 51455efc227SAndreas Gohr 51555efc227SAndreas Gohr if (@isset($this->_info['exif']['DateTimeOriginal'])) { 51655efc227SAndreas Gohr $dates['ExifDateTimeOriginal'] = $this->_info['exif']['DateTime']; 51755efc227SAndreas Gohr 51855efc227SAndreas Gohr $aux = $this->_info['exif']['DateTimeOriginal']; 51955efc227SAndreas Gohr $aux{4} = "-"; 52055efc227SAndreas Gohr $aux{7} = "-"; 52155efc227SAndreas Gohr $t = strtotime($aux); 52255efc227SAndreas Gohr 52355efc227SAndreas Gohr if ($t > $latestTime) { 52455efc227SAndreas Gohr $latestTime = $t; 52555efc227SAndreas Gohr $latestTimeSource = "ExifDateTimeOriginal"; 52655efc227SAndreas Gohr } 52755efc227SAndreas Gohr 52855efc227SAndreas Gohr if ($t < $earliestTime) { 52955efc227SAndreas Gohr $earliestTime = $t; 53055efc227SAndreas Gohr $earliestTimeSource = "ExifDateTimeOriginal"; 53155efc227SAndreas Gohr } 53255efc227SAndreas Gohr } 53355efc227SAndreas Gohr 53455efc227SAndreas Gohr if (@isset($this->_info['exif']['DateTimeDigitized'])) { 53555efc227SAndreas Gohr $dates['ExifDateTimeDigitized'] = $this->_info['exif']['DateTime']; 53655efc227SAndreas Gohr 53755efc227SAndreas Gohr $aux = $this->_info['exif']['DateTimeDigitized']; 53855efc227SAndreas Gohr $aux{4} = "-"; 53955efc227SAndreas Gohr $aux{7} = "-"; 54055efc227SAndreas Gohr $t = strtotime($aux); 54155efc227SAndreas Gohr 54255efc227SAndreas Gohr if ($t > $latestTime) { 54355efc227SAndreas Gohr $latestTime = $t; 54455efc227SAndreas Gohr $latestTimeSource = "ExifDateTimeDigitized"; 54555efc227SAndreas Gohr } 54655efc227SAndreas Gohr 54755efc227SAndreas Gohr if ($t < $earliestTime) { 54855efc227SAndreas Gohr $earliestTime = $t; 54955efc227SAndreas Gohr $earliestTimeSource = "ExifDateTimeDigitized"; 55055efc227SAndreas Gohr } 55155efc227SAndreas Gohr } 55255efc227SAndreas Gohr 55355efc227SAndreas Gohr if (@isset($this->_info['iptc']['DateCreated'])) { 55455efc227SAndreas Gohr $dates['IPTCDateCreated'] = $this->_info['iptc']['DateCreated']; 55555efc227SAndreas Gohr 55655efc227SAndreas Gohr $aux = $this->_info['iptc']['DateCreated']; 55755efc227SAndreas Gohr $aux = substr($aux, 0, 4) . "-" . substr($aux, 4, 2) . "-" . substr($aux, 6, 2); 55855efc227SAndreas Gohr $t = strtotime($aux); 55955efc227SAndreas Gohr 56055efc227SAndreas Gohr if ($t > $latestTime) { 56155efc227SAndreas Gohr $latestTime = $t; 56255efc227SAndreas Gohr $latestTimeSource = "IPTCDateCreated"; 56355efc227SAndreas Gohr } 56455efc227SAndreas Gohr 56555efc227SAndreas Gohr if ($t < $earliestTime) { 56655efc227SAndreas Gohr $earliestTime = $t; 56755efc227SAndreas Gohr $earliestTimeSource = "IPTCDateCreated"; 56855efc227SAndreas Gohr } 56955efc227SAndreas Gohr } 57055efc227SAndreas Gohr 57155efc227SAndreas Gohr if (@isset($this->_info['file']['UnixTime'])) { 57255efc227SAndreas Gohr $dates['FileModified'] = $this->_info['file']['UnixTime']; 57355efc227SAndreas Gohr 57455efc227SAndreas Gohr $t = $this->_info['file']['UnixTime']; 57555efc227SAndreas Gohr 57655efc227SAndreas Gohr if ($t > $latestTime) { 57755efc227SAndreas Gohr $latestTime = $t; 57855efc227SAndreas Gohr $latestTimeSource = "FileModified"; 57955efc227SAndreas Gohr } 58055efc227SAndreas Gohr 58155efc227SAndreas Gohr if ($t < $earliestTime) { 58255efc227SAndreas Gohr $earliestTime = $t; 58355efc227SAndreas Gohr $earliestTimeSource = "FileModified"; 58455efc227SAndreas Gohr } 58555efc227SAndreas Gohr } 58655efc227SAndreas Gohr 58755efc227SAndreas Gohr $dates['Time'] = $earliestTime; 58855efc227SAndreas Gohr $dates['TimeSource'] = $earliestTimeSource; 58955efc227SAndreas Gohr $dates['TimeStr'] = date("Y-m-d H:i:s", $earliestTime); 59055efc227SAndreas Gohr $dates['EarliestTime'] = $earliestTime; 59155efc227SAndreas Gohr $dates['EarliestTimeSource'] = $earliestTimeSource; 59255efc227SAndreas Gohr $dates['EarliestTimeStr'] = date("Y-m-d H:i:s", $earliestTime); 59355efc227SAndreas Gohr $dates['LatestTime'] = $latestTime; 59455efc227SAndreas Gohr $dates['LatestTimeSource'] = $latestTimeSource; 59555efc227SAndreas Gohr $dates['LatestTimeStr'] = date("Y-m-d H:i:s", $latestTime); 59655efc227SAndreas Gohr 59755efc227SAndreas Gohr return $dates; 59855efc227SAndreas Gohr } 59955efc227SAndreas Gohr 60055efc227SAndreas Gohr /** 60155efc227SAndreas Gohr * Get the image width, tries various fields 60255efc227SAndreas Gohr * 60355efc227SAndreas Gohr * @author Sebastian Delmont <sdelmont@zonageek.com> 60455efc227SAndreas Gohr */ 60555efc227SAndreas Gohr function getWidth() 60655efc227SAndreas Gohr { 60755efc227SAndreas Gohr if (!isset($this->_info['sof'])) { 60855efc227SAndreas Gohr $this->_parseMarkerSOF(); 60955efc227SAndreas Gohr } 61055efc227SAndreas Gohr 61155efc227SAndreas Gohr if ($this->_markers == null) { 61255efc227SAndreas Gohr return false; 61355efc227SAndreas Gohr } 61455efc227SAndreas Gohr 61555efc227SAndreas Gohr if (isset($this->_info['sof']['ImageWidth'])) { 61655efc227SAndreas Gohr return $this->_info['sof']['ImageWidth']; 61755efc227SAndreas Gohr } 61855efc227SAndreas Gohr 61955efc227SAndreas Gohr if (!isset($this->_info['exif'])) { 62055efc227SAndreas Gohr $this->_parseMarkerExif(); 62155efc227SAndreas Gohr } 62255efc227SAndreas Gohr 62355efc227SAndreas Gohr if (isset($this->_info['exif']['PixelXDimension'])) { 62455efc227SAndreas Gohr return $this->_info['exif']['PixelXDimension']; 62555efc227SAndreas Gohr } 62655efc227SAndreas Gohr 62755efc227SAndreas Gohr return false; 62855efc227SAndreas Gohr } 62955efc227SAndreas Gohr 63055efc227SAndreas Gohr /** 63155efc227SAndreas Gohr * Get the image height, tries various fields 63255efc227SAndreas Gohr * 63355efc227SAndreas Gohr * @author Sebastian Delmont <sdelmont@zonageek.com> 63455efc227SAndreas Gohr */ 63555efc227SAndreas Gohr function getHeight() 63655efc227SAndreas Gohr { 63755efc227SAndreas Gohr if (!isset($this->_info['sof'])) { 63855efc227SAndreas Gohr $this->_parseMarkerSOF(); 63955efc227SAndreas Gohr } 64055efc227SAndreas Gohr 64155efc227SAndreas Gohr if ($this->_markers == null) { 64255efc227SAndreas Gohr return false; 64355efc227SAndreas Gohr } 64455efc227SAndreas Gohr 64555efc227SAndreas Gohr if (isset($this->_info['sof']['ImageHeight'])) { 64655efc227SAndreas Gohr return $this->_info['sof']['ImageHeight']; 64755efc227SAndreas Gohr } 64855efc227SAndreas Gohr 64955efc227SAndreas Gohr if (!isset($this->_info['exif'])) { 65055efc227SAndreas Gohr $this->_parseMarkerExif(); 65155efc227SAndreas Gohr } 65255efc227SAndreas Gohr 65355efc227SAndreas Gohr if (isset($this->_info['exif']['PixelYDimension'])) { 65455efc227SAndreas Gohr return $this->_info['exif']['PixelYDimension']; 65555efc227SAndreas Gohr } 65655efc227SAndreas Gohr 65755efc227SAndreas Gohr return false; 65855efc227SAndreas Gohr } 65955efc227SAndreas Gohr 66055efc227SAndreas Gohr /** 66155efc227SAndreas Gohr * Get an dimension string for use in img tag 66255efc227SAndreas Gohr * 66355efc227SAndreas Gohr * @author Sebastian Delmont <sdelmont@zonageek.com> 66455efc227SAndreas Gohr */ 66555efc227SAndreas Gohr function getDimStr() 66655efc227SAndreas Gohr { 66755efc227SAndreas Gohr if ($this->_markers == null) { 66855efc227SAndreas Gohr return false; 66955efc227SAndreas Gohr } 67055efc227SAndreas Gohr 67155efc227SAndreas Gohr $w = $this->getWidth(); 67255efc227SAndreas Gohr $h = $this->getHeight(); 67355efc227SAndreas Gohr 67455efc227SAndreas Gohr return "width='" . $w . "' height='" . $h . "'"; 67555efc227SAndreas Gohr } 67655efc227SAndreas Gohr 67755efc227SAndreas Gohr /** 67855efc227SAndreas Gohr * Checks for an embedded thumbnail 67955efc227SAndreas Gohr * 68055efc227SAndreas Gohr * @author Sebastian Delmont <sdelmont@zonageek.com> 68155efc227SAndreas Gohr */ 68255efc227SAndreas Gohr function hasThumbnail($which = 'any') 68355efc227SAndreas Gohr { 68455efc227SAndreas Gohr if (($which == 'any') || ($which == 'exif')) { 68555efc227SAndreas Gohr if (!isset($this->_info['exif'])) { 68655efc227SAndreas Gohr $this->_parseMarkerExif(); 68755efc227SAndreas Gohr } 68855efc227SAndreas Gohr 68955efc227SAndreas Gohr if ($this->_markers == null) { 69055efc227SAndreas Gohr return false; 69155efc227SAndreas Gohr } 69255efc227SAndreas Gohr 69355efc227SAndreas Gohr if (isset($this->_info['exif']) && is_array($this->_info['exif'])) { 69455efc227SAndreas Gohr if (isset($this->_info['exif']['JFIFThumbnail'])) { 69555efc227SAndreas Gohr return 'exif'; 69655efc227SAndreas Gohr } 69755efc227SAndreas Gohr } 69855efc227SAndreas Gohr } 69955efc227SAndreas Gohr 70055efc227SAndreas Gohr if ($which == 'adobe') { 70155efc227SAndreas Gohr if (!isset($this->_info['adobe'])) { 70255efc227SAndreas Gohr $this->_parseMarkerAdobe(); 70355efc227SAndreas Gohr } 70455efc227SAndreas Gohr 70555efc227SAndreas Gohr if ($this->_markers == null) { 70655efc227SAndreas Gohr return false; 70755efc227SAndreas Gohr } 70855efc227SAndreas Gohr 70955efc227SAndreas Gohr if (isset($this->_info['adobe']) && is_array($this->_info['adobe'])) { 71055efc227SAndreas Gohr if (isset($this->_info['adobe']['ThumbnailData'])) { 71155efc227SAndreas Gohr return 'exif'; 71255efc227SAndreas Gohr } 71355efc227SAndreas Gohr } 71455efc227SAndreas Gohr } 71555efc227SAndreas Gohr 71655efc227SAndreas Gohr return false; 71755efc227SAndreas Gohr } 71855efc227SAndreas Gohr 71955efc227SAndreas Gohr /** 72055efc227SAndreas Gohr * Send embedded thumbnail to browser 72155efc227SAndreas Gohr * 72255efc227SAndreas Gohr * @author Sebastian Delmont <sdelmont@zonageek.com> 72355efc227SAndreas Gohr */ 72455efc227SAndreas Gohr function sendThumbnail($which = 'any') 72555efc227SAndreas Gohr { 72655efc227SAndreas Gohr $data = null; 72755efc227SAndreas Gohr 72855efc227SAndreas Gohr if (($which == 'any') || ($which == 'exif')) { 72955efc227SAndreas Gohr if (!isset($this->_info['exif'])) { 73055efc227SAndreas Gohr $this->_parseMarkerExif(); 73155efc227SAndreas Gohr } 73255efc227SAndreas Gohr 73355efc227SAndreas Gohr if ($this->_markers == null) { 73455efc227SAndreas Gohr return false; 73555efc227SAndreas Gohr } 73655efc227SAndreas Gohr 73755efc227SAndreas Gohr if (isset($this->_info['exif']) && is_array($this->_info['exif'])) { 73855efc227SAndreas Gohr if (isset($this->_info['exif']['JFIFThumbnail'])) { 73955efc227SAndreas Gohr $data =& $this->_info['exif']['JFIFThumbnail']; 74055efc227SAndreas Gohr } 74155efc227SAndreas Gohr } 74255efc227SAndreas Gohr } 74355efc227SAndreas Gohr 74455efc227SAndreas Gohr if (($which == 'adobe') || ($data == null)){ 74555efc227SAndreas Gohr if (!isset($this->_info['adobe'])) { 74655efc227SAndreas Gohr $this->_parseMarkerAdobe(); 74755efc227SAndreas Gohr } 74855efc227SAndreas Gohr 74955efc227SAndreas Gohr if ($this->_markers == null) { 75055efc227SAndreas Gohr return false; 75155efc227SAndreas Gohr } 75255efc227SAndreas Gohr 75355efc227SAndreas Gohr if (isset($this->_info['adobe']) && is_array($this->_info['adobe'])) { 75455efc227SAndreas Gohr if (isset($this->_info['adobe']['ThumbnailData'])) { 75555efc227SAndreas Gohr $data =& $this->_info['adobe']['ThumbnailData']; 75655efc227SAndreas Gohr } 75755efc227SAndreas Gohr } 75855efc227SAndreas Gohr } 75955efc227SAndreas Gohr 76055efc227SAndreas Gohr if ($data != null) { 76155efc227SAndreas Gohr header("Content-type: image/jpeg"); 76255efc227SAndreas Gohr echo $data; 76355efc227SAndreas Gohr return true; 76455efc227SAndreas Gohr } 76555efc227SAndreas Gohr 76655efc227SAndreas Gohr return false; 76755efc227SAndreas Gohr } 76855efc227SAndreas Gohr 76955efc227SAndreas Gohr /** 77055efc227SAndreas Gohr * Save changed Metadata 77155efc227SAndreas Gohr * 77255efc227SAndreas Gohr * @author Sebastian Delmont <sdelmont@zonageek.com> 77355efc227SAndreas Gohr */ 77455efc227SAndreas Gohr function save($fileName = "") { 77555efc227SAndreas Gohr if ($fileName == "") { 77655efc227SAndreas Gohr $tmpName = $this->_fileName . ".tmp"; 77755efc227SAndreas Gohr $this->_writeJPEG($tmpName); 77855efc227SAndreas Gohr if (file_exists($tmpName)) { 77955efc227SAndreas Gohr rename($tmpName, $this->_fileName); 78055efc227SAndreas Gohr } 78155efc227SAndreas Gohr } 78255efc227SAndreas Gohr else { 78355efc227SAndreas Gohr $this->_writeJPEG($fileName); 78455efc227SAndreas Gohr } 78555efc227SAndreas Gohr } 78655efc227SAndreas Gohr 78755efc227SAndreas Gohr /*************************************************************/ 78855efc227SAndreas Gohr /* PRIVATE FUNCTIONS (Internal Use Only!) */ 78955efc227SAndreas Gohr /*************************************************************/ 79055efc227SAndreas Gohr 79155efc227SAndreas Gohr /*************************************************************/ 79255efc227SAndreas Gohr function _dispose() 79355efc227SAndreas Gohr { 79455efc227SAndreas Gohr $this->_fileName = $fileName; 79555efc227SAndreas Gohr 79655efc227SAndreas Gohr $this->_fp = null; 79755efc227SAndreas Gohr $this->_type = 'unknown'; 79855efc227SAndreas Gohr 79955efc227SAndreas Gohr unset($this->_markers); 80055efc227SAndreas Gohr unset($this->_info); 80155efc227SAndreas Gohr } 80255efc227SAndreas Gohr 80355efc227SAndreas Gohr /*************************************************************/ 80455efc227SAndreas Gohr function _readJPEG() 80555efc227SAndreas Gohr { 80655efc227SAndreas Gohr unset($this->_markers); 80755efc227SAndreas Gohr unset($this->_info); 80855efc227SAndreas Gohr $this->_markers = array(); 80955efc227SAndreas Gohr $this->_info = array(); 81055efc227SAndreas Gohr 81155efc227SAndreas Gohr $this->_fp = @fopen($this->_fileName, 'rb'); 81255efc227SAndreas Gohr if ($this->_fp) { 81355efc227SAndreas Gohr if (file_exists($this->_fileName)) { 81455efc227SAndreas Gohr $this->_type = 'file'; 81555efc227SAndreas Gohr } 81655efc227SAndreas Gohr else { 81755efc227SAndreas Gohr $this->_type = 'url'; 81855efc227SAndreas Gohr } 81955efc227SAndreas Gohr } 82055efc227SAndreas Gohr else { 82155efc227SAndreas Gohr $this->_fp = null; 82255efc227SAndreas Gohr return false; // ERROR: Can't open file 82355efc227SAndreas Gohr } 82455efc227SAndreas Gohr 82555efc227SAndreas Gohr // Check for the JPEG signature 82655efc227SAndreas Gohr $c1 = ord(fgetc($this->_fp)); 82755efc227SAndreas Gohr $c2 = ord(fgetc($this->_fp)); 82855efc227SAndreas Gohr 82955efc227SAndreas Gohr if ($c1 != 0xFF || $c2 != 0xD8) { // (0xFF + SOI) 83055efc227SAndreas Gohr $this->_markers = null; 83155efc227SAndreas Gohr return false; // ERROR: File is not a JPEG 83255efc227SAndreas Gohr } 83355efc227SAndreas Gohr 83455efc227SAndreas Gohr $count = 0; 83555efc227SAndreas Gohr 83655efc227SAndreas Gohr $done = false; 83755efc227SAndreas Gohr $ok = true; 83855efc227SAndreas Gohr 83955efc227SAndreas Gohr while (!$done) { 84055efc227SAndreas Gohr $capture = false; 84155efc227SAndreas Gohr 84255efc227SAndreas Gohr // First, skip any non 0xFF bytes 84355efc227SAndreas Gohr $discarded = 0; 84455efc227SAndreas Gohr $c = ord(fgetc($this->_fp)); 84555efc227SAndreas Gohr while (!feof($this->_fp) && ($c != 0xFF)) { 84655efc227SAndreas Gohr $discarded++; 84755efc227SAndreas Gohr $c = ord(fgetc($this->_fp)); 84855efc227SAndreas Gohr } 84955efc227SAndreas Gohr // Then skip all 0xFF until the marker byte 85055efc227SAndreas Gohr do { 85155efc227SAndreas Gohr $marker = ord(fgetc($this->_fp)); 85255efc227SAndreas Gohr } while (!feof($this->_fp) && ($marker == 0xFF)); 85355efc227SAndreas Gohr 85455efc227SAndreas Gohr if (feof($this->_fp)) { 85555efc227SAndreas Gohr return false; // ERROR: Unexpected EOF 85655efc227SAndreas Gohr } 85755efc227SAndreas Gohr if ($discarded != 0) { 85855efc227SAndreas Gohr return false; // ERROR: Extraneous data 85955efc227SAndreas Gohr } 86055efc227SAndreas Gohr 86155efc227SAndreas Gohr $length = ord(fgetc($this->_fp)) * 256 + ord(fgetc($this->_fp)); 86255efc227SAndreas Gohr if (feof($this->_fp)) { 86355efc227SAndreas Gohr return false; // ERROR: Unexpected EOF 86455efc227SAndreas Gohr } 86555efc227SAndreas Gohr if ($length < 2) { 86655efc227SAndreas Gohr return false; // ERROR: Extraneous data 86755efc227SAndreas Gohr } 86855efc227SAndreas Gohr $length = $length - 2; // The length we got counts itself 86955efc227SAndreas Gohr 87055efc227SAndreas Gohr switch ($marker) { 87155efc227SAndreas Gohr case 0xC0: // SOF0 87255efc227SAndreas Gohr case 0xC1: // SOF1 87355efc227SAndreas Gohr case 0xC2: // SOF2 87455efc227SAndreas Gohr case 0xC9: // SOF9 87555efc227SAndreas Gohr case 0xE0: // APP0: JFIF data 87655efc227SAndreas Gohr case 0xE1: // APP1: EXIF data 87755efc227SAndreas Gohr case 0xED: // APP13: IPTC / Photoshop data 87855efc227SAndreas Gohr $capture = true; 87955efc227SAndreas Gohr break; 88055efc227SAndreas Gohr case 0xDA: // SOS: Start of scan... the image itself and the last block on the file 88155efc227SAndreas Gohr $capture = false; 88255efc227SAndreas Gohr $length = -1; // This field has no length... it includes all data until EOF 88355efc227SAndreas Gohr $done = true; 88455efc227SAndreas Gohr break; 88555efc227SAndreas Gohr default: 88655efc227SAndreas Gohr $capture = true;//false; 88755efc227SAndreas Gohr break; 88855efc227SAndreas Gohr } 88955efc227SAndreas Gohr 89055efc227SAndreas Gohr $this->_markers[$count] = array(); 89155efc227SAndreas Gohr $this->_markers[$count]['marker'] = $marker; 89255efc227SAndreas Gohr $this->_markers[$count]['length'] = $length; 89355efc227SAndreas Gohr 89455efc227SAndreas Gohr if ($capture) { 89555efc227SAndreas Gohr $this->_markers[$count]['data'] =& fread($this->_fp, $length); 89655efc227SAndreas Gohr } 89755efc227SAndreas Gohr elseif (!$done) { 89855efc227SAndreas Gohr $result = @fseek($this->_fp, $length, SEEK_CUR); 89955efc227SAndreas Gohr // fseek doesn't seem to like HTTP 'files', but fgetc has no problem 90055efc227SAndreas Gohr if (!($result === 0)) { 90155efc227SAndreas Gohr for ($i = 0; $i < $length; $i++) { 90255efc227SAndreas Gohr fgetc($this->_fp); 90355efc227SAndreas Gohr } 90455efc227SAndreas Gohr } 90555efc227SAndreas Gohr } 90655efc227SAndreas Gohr $count++; 90755efc227SAndreas Gohr } 90855efc227SAndreas Gohr 90955efc227SAndreas Gohr if ($this->_fp) { 91055efc227SAndreas Gohr fclose($this->_fp); 91155efc227SAndreas Gohr $this->_fp = null; 91255efc227SAndreas Gohr } 91355efc227SAndreas Gohr 91455efc227SAndreas Gohr return $ok; 91555efc227SAndreas Gohr } 91655efc227SAndreas Gohr 91755efc227SAndreas Gohr /*************************************************************/ 91855efc227SAndreas Gohr function _parseAll() 91955efc227SAndreas Gohr { 92055efc227SAndreas Gohr if (!isset($this->_markers)) { 92155efc227SAndreas Gohr $this->_readJPEG(); 92255efc227SAndreas Gohr } 92355efc227SAndreas Gohr 92455efc227SAndreas Gohr if ($this->_markers == null) { 92555efc227SAndreas Gohr return false; 92655efc227SAndreas Gohr } 92755efc227SAndreas Gohr 92855efc227SAndreas Gohr if (!isset($this->_info['jfif'])) { 92955efc227SAndreas Gohr $this->_parseMarkerJFIF(); 93055efc227SAndreas Gohr } 93155efc227SAndreas Gohr if (!isset($this->_info['jpeg'])) { 93255efc227SAndreas Gohr $this->_parseMarkerSOF(); 93355efc227SAndreas Gohr } 93455efc227SAndreas Gohr if (!isset($this->_info['exif'])) { 93555efc227SAndreas Gohr $this->_parseMarkerExif(); 93655efc227SAndreas Gohr } 93755efc227SAndreas Gohr if (!isset($this->_info['adobe'])) { 93855efc227SAndreas Gohr $this->_parseMarkerAdobe(); 93955efc227SAndreas Gohr } 94055efc227SAndreas Gohr if (!isset($this->_info['file'])) { 94155efc227SAndreas Gohr $this->_parseFileInfo(); 94255efc227SAndreas Gohr } 94355efc227SAndreas Gohr } 94455efc227SAndreas Gohr 94555efc227SAndreas Gohr /*************************************************************/ 94655efc227SAndreas Gohr function _writeJPEG($outputName) 94755efc227SAndreas Gohr { 94855efc227SAndreas Gohr $this->_parseAll(); 94955efc227SAndreas Gohr 95055efc227SAndreas Gohr $wroteEXIF = false; 95155efc227SAndreas Gohr $wroteAdobe = false; 95255efc227SAndreas Gohr 95355efc227SAndreas Gohr $this->_fp = @fopen($this->_fileName, 'r'); 95455efc227SAndreas Gohr if ($this->_fp) { 95555efc227SAndreas Gohr if (file_exists($this->_fileName)) { 95655efc227SAndreas Gohr $this->_type = 'file'; 95755efc227SAndreas Gohr } 95855efc227SAndreas Gohr else { 95955efc227SAndreas Gohr $this->_type = 'url'; 96055efc227SAndreas Gohr } 96155efc227SAndreas Gohr } 96255efc227SAndreas Gohr else { 96355efc227SAndreas Gohr $this->_fp = null; 96455efc227SAndreas Gohr return false; // ERROR: Can't open file 96555efc227SAndreas Gohr } 96655efc227SAndreas Gohr 96755efc227SAndreas Gohr $this->_fpout = fopen($outputName, 'wb'); 96855efc227SAndreas Gohr if ($this->_fpout) { 96955efc227SAndreas Gohr } 97055efc227SAndreas Gohr else { 97155efc227SAndreas Gohr $this->_fpout = null; 97255efc227SAndreas Gohr fclose($this->_fp); 97355efc227SAndreas Gohr $this->_fp = null; 97455efc227SAndreas Gohr return false; // ERROR: Can't open output file 97555efc227SAndreas Gohr } 97655efc227SAndreas Gohr 97755efc227SAndreas Gohr // Check for the JPEG signature 97855efc227SAndreas Gohr $c1 = ord(fgetc($this->_fp)); 97955efc227SAndreas Gohr $c2 = ord(fgetc($this->_fp)); 98055efc227SAndreas Gohr 98155efc227SAndreas Gohr if ($c1 != 0xFF || $c2 != 0xD8) { // (0xFF + SOI) 98255efc227SAndreas Gohr return false; // ERROR: File is not a JPEG 98355efc227SAndreas Gohr } 98455efc227SAndreas Gohr 98555efc227SAndreas Gohr fputs($this->_fpout, chr(0xFF), 1); 98655efc227SAndreas Gohr fputs($this->_fpout, chr(0xD8), 1); // (0xFF + SOI) 98755efc227SAndreas Gohr 98855efc227SAndreas Gohr $count = 0; 98955efc227SAndreas Gohr 99055efc227SAndreas Gohr $done = false; 99155efc227SAndreas Gohr $ok = true; 99255efc227SAndreas Gohr 99355efc227SAndreas Gohr while (!$done) { 99455efc227SAndreas Gohr // First, skip any non 0xFF bytes 99555efc227SAndreas Gohr $discarded = 0; 99655efc227SAndreas Gohr $c = ord(fgetc($this->_fp)); 99755efc227SAndreas Gohr while (!feof($this->_fp) && ($c != 0xFF)) { 99855efc227SAndreas Gohr $discarded++; 99955efc227SAndreas Gohr $c = ord(fgetc($this->_fp)); 100055efc227SAndreas Gohr } 100155efc227SAndreas Gohr // Then skip all 0xFF until the marker byte 100255efc227SAndreas Gohr do { 100355efc227SAndreas Gohr $marker = ord(fgetc($this->_fp)); 100455efc227SAndreas Gohr } while (!feof($this->_fp) && ($marker == 0xFF)); 100555efc227SAndreas Gohr 100655efc227SAndreas Gohr if (feof($this->_fp)) { 100755efc227SAndreas Gohr $ok = false; 100855efc227SAndreas Gohr break; // ERROR: Unexpected EOF 100955efc227SAndreas Gohr } 101055efc227SAndreas Gohr if ($discarded != 0) { 101155efc227SAndreas Gohr $ok = false; 101255efc227SAndreas Gohr break; // ERROR: Extraneous data 101355efc227SAndreas Gohr } 101455efc227SAndreas Gohr 101555efc227SAndreas Gohr $length = ord(fgetc($this->_fp)) * 256 + ord(fgetc($this->_fp)); 101655efc227SAndreas Gohr if (feof($this->_fp)) { 101755efc227SAndreas Gohr $ok = false; 101855efc227SAndreas Gohr break; // ERROR: Unexpected EOF 101955efc227SAndreas Gohr } 102055efc227SAndreas Gohr if ($length < 2) { 102155efc227SAndreas Gohr $ok = false; 102255efc227SAndreas Gohr break; // ERROR: Extraneous data 102355efc227SAndreas Gohr } 102455efc227SAndreas Gohr $length = $length - 2; // The length we got counts itself 102555efc227SAndreas Gohr 102655efc227SAndreas Gohr unset($data); 102755efc227SAndreas Gohr if ($marker == 0xE1) { // APP1: EXIF data 102855efc227SAndreas Gohr $data =& $this->_createMarkerEXIF(); 102955efc227SAndreas Gohr $wroteEXIF = true; 103055efc227SAndreas Gohr } 103155efc227SAndreas Gohr elseif ($marker == 0xED) { // APP13: IPTC / Photoshop data 103255efc227SAndreas Gohr $data =& $this->_createMarkerAdobe(); 103355efc227SAndreas Gohr $wroteAdobe = true; 103455efc227SAndreas Gohr } 103555efc227SAndreas Gohr elseif ($marker == 0xDA) { // SOS: Start of scan... the image itself and the last block on the file 103655efc227SAndreas Gohr $done = true; 103755efc227SAndreas Gohr } 103855efc227SAndreas Gohr 103955efc227SAndreas Gohr if (!$wroteEXIF && (($marker < 0xE0) || ($marker > 0xEF))) { 104055efc227SAndreas Gohr if (isset($this->_info['exif']) && is_array($this->_info['exif'])) { 104155efc227SAndreas Gohr $exif =& $this->_createMarkerEXIF(); 104255efc227SAndreas Gohr $this->_writeJPEGMarker(0xE1, strlen($exif), $exif, 0); 104355efc227SAndreas Gohr unset($exif); 104455efc227SAndreas Gohr } 104555efc227SAndreas Gohr $wroteEXIF = true; 104655efc227SAndreas Gohr } 104755efc227SAndreas Gohr 104855efc227SAndreas Gohr if (!$wroteAdobe && (($marker < 0xE0) || ($marker > 0xEF))) { 104955efc227SAndreas Gohr if ((isset($this->_info['adobe']) && is_array($this->_info['adobe'])) 105055efc227SAndreas Gohr || (isset($this->_info['iptc']) && is_array($this->_info['iptc']))) { 105155efc227SAndreas Gohr $adobe =& $this->_createMarkerAdobe(); 105255efc227SAndreas Gohr $this->_writeJPEGMarker(0xED, strlen($adobe), $adobe, 0); 105355efc227SAndreas Gohr unset($adobe); 105455efc227SAndreas Gohr } 105555efc227SAndreas Gohr $wroteAdobe = true; 105655efc227SAndreas Gohr } 105755efc227SAndreas Gohr 105855efc227SAndreas Gohr $origLength = $length; 105955efc227SAndreas Gohr if (isset($data)) { 106055efc227SAndreas Gohr $length = strlen($data); 106155efc227SAndreas Gohr } 106255efc227SAndreas Gohr 106355efc227SAndreas Gohr if ($marker != -1) { 106455efc227SAndreas Gohr $this->_writeJPEGMarker($marker, $length, $data, $origLength); 106555efc227SAndreas Gohr } 106655efc227SAndreas Gohr } 106755efc227SAndreas Gohr 106855efc227SAndreas Gohr if ($this->_fp) { 106955efc227SAndreas Gohr fclose($this->_fp); 107055efc227SAndreas Gohr $this->_fp = null; 107155efc227SAndreas Gohr } 107255efc227SAndreas Gohr 107355efc227SAndreas Gohr if ($this->_fpout) { 107455efc227SAndreas Gohr fclose($this->_fpout); 107555efc227SAndreas Gohr $this->_fpout = null; 107655efc227SAndreas Gohr } 107755efc227SAndreas Gohr 107855efc227SAndreas Gohr return $ok; 107955efc227SAndreas Gohr } 108055efc227SAndreas Gohr 108155efc227SAndreas Gohr /*************************************************************/ 108255efc227SAndreas Gohr function _writeJPEGMarker($marker, $length, &$data, $origLength) 108355efc227SAndreas Gohr { 108455efc227SAndreas Gohr if ($length <= 0) { 108555efc227SAndreas Gohr return false; 108655efc227SAndreas Gohr } 108755efc227SAndreas Gohr 108855efc227SAndreas Gohr fputs($this->_fpout, chr(0xFF), 1); 108955efc227SAndreas Gohr fputs($this->_fpout, chr($marker), 1); 109055efc227SAndreas Gohr fputs($this->_fpout, chr((($length + 2) & 0x0000FF00) >> 8), 1); 109155efc227SAndreas Gohr fputs($this->_fpout, chr((($length + 2) & 0x000000FF) >> 0), 1); 109255efc227SAndreas Gohr 109355efc227SAndreas Gohr if (isset($data)) { 109455efc227SAndreas Gohr // Copy the generated data 109555efc227SAndreas Gohr fputs($this->_fpout, $data, $length); 109655efc227SAndreas Gohr 109755efc227SAndreas Gohr if ($origLength > 0) { // Skip the original data 109855efc227SAndreas Gohr $result = @fseek($this->_fp, $origLength, SEEK_CUR); 109955efc227SAndreas Gohr // fseek doesn't seem to like HTTP 'files', but fgetc has no problem 110055efc227SAndreas Gohr if ($result != 0) { 110155efc227SAndreas Gohr for ($i = 0; $i < $origLength; $i++) { 110255efc227SAndreas Gohr fgetc($this->_fp); 110355efc227SAndreas Gohr } 110455efc227SAndreas Gohr } 110555efc227SAndreas Gohr } 110655efc227SAndreas Gohr } 110755efc227SAndreas Gohr else { 110855efc227SAndreas Gohr if ($marker == 0xDA) { // Copy until EOF 110955efc227SAndreas Gohr while (!feof($this->_fp)) { 111055efc227SAndreas Gohr $data =& fread($this->_fp, 1024 * 16); 111155efc227SAndreas Gohr fputs($this->_fpout, $data, strlen($data)); 111255efc227SAndreas Gohr } 111355efc227SAndreas Gohr } 111455efc227SAndreas Gohr else { // Copy only $length bytes 111555efc227SAndreas Gohr $data =& fread($this->_fp, $length); 111655efc227SAndreas Gohr fputs($this->_fpout, $data, $length); 111755efc227SAndreas Gohr } 111855efc227SAndreas Gohr } 111955efc227SAndreas Gohr 112055efc227SAndreas Gohr return true; 112155efc227SAndreas Gohr } 112255efc227SAndreas Gohr 1123*23a34783SAndreas Gohr /** 1124*23a34783SAndreas Gohr * Gets basic info from the file - should work with non-JPEGs 1125*23a34783SAndreas Gohr * 1126*23a34783SAndreas Gohr * @author Sebastian Delmont <sdelmont@zonageek.com> 1127*23a34783SAndreas Gohr * @author Andreas Gohr <andi@splitbrain.org> 1128*23a34783SAndreas Gohr */ 112955efc227SAndreas Gohr function _parseFileInfo() 113055efc227SAndreas Gohr { 113155efc227SAndreas Gohr if (file_exists($this->_fileName)) { 113255efc227SAndreas Gohr $this->_info['file'] = array(); 113355efc227SAndreas Gohr $this->_info['file']['Name'] = basename($this->_fileName); 1134*23a34783SAndreas Gohr $this->_info['file']['Path'] = realpath($this->_fileName); 113555efc227SAndreas Gohr $this->_info['file']['Size'] = filesize($this->_fileName); 113655efc227SAndreas Gohr if ($this->_info['file']['Size'] < 1024) { 113755efc227SAndreas Gohr $this->_info['file']['NiceSize'] = $this->_info['file']['Size'] . 'B'; 113855efc227SAndreas Gohr } 113955efc227SAndreas Gohr elseif ($this->_info['file']['Size'] < (1024 * 1024)) { 114055efc227SAndreas Gohr $this->_info['file']['NiceSize'] = round($this->_info['file']['Size'] / 1024) . 'KB'; 114155efc227SAndreas Gohr } 114255efc227SAndreas Gohr elseif ($this->_info['file']['Size'] < (1024 * 1024 * 1024)) { 114355efc227SAndreas Gohr $this->_info['file']['NiceSize'] = round($this->_info['file']['Size'] / 1024) . 'MB'; 114455efc227SAndreas Gohr } 114555efc227SAndreas Gohr else { 114655efc227SAndreas Gohr $this->_info['file']['NiceSize'] = $this->_info['file']['Size'] . 'B'; 114755efc227SAndreas Gohr } 114855efc227SAndreas Gohr $this->_info['file']['UnixTime'] = filemtime($this->_fileName); 114955efc227SAndreas Gohr 115055efc227SAndreas Gohr // get image size directly from file 115155efc227SAndreas Gohr $size = getimagesize($this->_fileName); 115255efc227SAndreas Gohr $this->_info['file']['Width'] = $size[0]; 115355efc227SAndreas Gohr $this->_info['file']['Height'] = $size[1]; 115455efc227SAndreas Gohr // set mime types and formats 115555efc227SAndreas Gohr // http://www.php.net/manual/en/function.getimagesize.php 115655efc227SAndreas Gohr // http://www.php.net/manual/en/function.image-type-to-mime-type.php 115755efc227SAndreas Gohr switch ($size[2]){ 115855efc227SAndreas Gohr case 1: 115955efc227SAndreas Gohr $this->_info['file']['Mime'] = 'image/gif'; 116055efc227SAndreas Gohr $this->_info['file']['Format'] = 'GIF'; 116155efc227SAndreas Gohr break; 116255efc227SAndreas Gohr case 2: 116355efc227SAndreas Gohr $this->_info['file']['Mime'] = 'image/jpeg'; 116455efc227SAndreas Gohr $this->_info['file']['Format'] = 'JPEG'; 116555efc227SAndreas Gohr break; 116655efc227SAndreas Gohr case 3: 116755efc227SAndreas Gohr $this->_info['file']['Mime'] = 'image/png'; 116855efc227SAndreas Gohr $this->_info['file']['Format'] = 'PNG'; 116955efc227SAndreas Gohr break; 117055efc227SAndreas Gohr case 4: 117155efc227SAndreas Gohr $this->_info['file']['Mime'] = 'application/x-shockwave-flash'; 117255efc227SAndreas Gohr $this->_info['file']['Format'] = 'SWF'; 117355efc227SAndreas Gohr break; 117455efc227SAndreas Gohr case 5: 117555efc227SAndreas Gohr $this->_info['file']['Mime'] = 'image/psd'; 117655efc227SAndreas Gohr $this->_info['file']['Format'] = 'PSD'; 117755efc227SAndreas Gohr break; 117855efc227SAndreas Gohr case 6: 117955efc227SAndreas Gohr $this->_info['file']['Mime'] = 'image/bmp'; 118055efc227SAndreas Gohr $this->_info['file']['Format'] = 'BMP'; 118155efc227SAndreas Gohr break; 118255efc227SAndreas Gohr case 7: 118355efc227SAndreas Gohr $this->_info['file']['Mime'] = 'image/tiff'; 118455efc227SAndreas Gohr $this->_info['file']['Format'] = 'TIFF (Intel)'; 118555efc227SAndreas Gohr break; 118655efc227SAndreas Gohr case 8: 118755efc227SAndreas Gohr $this->_info['file']['Mime'] = 'image/tiff'; 118855efc227SAndreas Gohr $this->_info['file']['Format'] = 'TIFF (Motorola)'; 118955efc227SAndreas Gohr break; 119055efc227SAndreas Gohr case 9: 119155efc227SAndreas Gohr $this->_info['file']['Mime'] = 'application/octet-stream'; 119255efc227SAndreas Gohr $this->_info['file']['Format'] = 'JPC'; 119355efc227SAndreas Gohr break; 119455efc227SAndreas Gohr case 10: 119555efc227SAndreas Gohr $this->_info['file']['Mime'] = 'image/jp2'; 119655efc227SAndreas Gohr $this->_info['file']['Format'] = 'JP2'; 119755efc227SAndreas Gohr break; 119855efc227SAndreas Gohr case 11: 119955efc227SAndreas Gohr $this->_info['file']['Mime'] = 'application/octet-stream'; 120055efc227SAndreas Gohr $this->_info['file']['Format'] = 'JPX'; 120155efc227SAndreas Gohr break; 120255efc227SAndreas Gohr case 12: 120355efc227SAndreas Gohr $this->_info['file']['Mime'] = 'application/octet-stream'; 120455efc227SAndreas Gohr $this->_info['file']['Format'] = 'JB2'; 120555efc227SAndreas Gohr break; 120655efc227SAndreas Gohr case 13: 120755efc227SAndreas Gohr $this->_info['file']['Mime'] = 'application/x-shockwave-flash'; 120855efc227SAndreas Gohr $this->_info['file']['Format'] = 'SWC'; 120955efc227SAndreas Gohr break; 121055efc227SAndreas Gohr case 14: 121155efc227SAndreas Gohr $this->_info['file']['Mime'] = 'image/iff'; 121255efc227SAndreas Gohr $this->_info['file']['Format'] = 'IFF'; 121355efc227SAndreas Gohr break; 121455efc227SAndreas Gohr case 15: 121555efc227SAndreas Gohr $this->_info['file']['Mime'] = 'image/vnd.wap.wbmp'; 121655efc227SAndreas Gohr $this->_info['file']['Format'] = 'WBMP'; 121755efc227SAndreas Gohr break; 121855efc227SAndreas Gohr case 16: 121955efc227SAndreas Gohr $this->_info['file']['Mime'] = 'image/xbm'; 122055efc227SAndreas Gohr $this->_info['file']['Format'] = 'XBM'; 122155efc227SAndreas Gohr break; 122255efc227SAndreas Gohr default: 122355efc227SAndreas Gohr $this->_info['file']['Mime'] = 'image/unknown'; 122455efc227SAndreas Gohr } 122555efc227SAndreas Gohr } 122655efc227SAndreas Gohr else { 122755efc227SAndreas Gohr $this->_info['file'] = array(); 122855efc227SAndreas Gohr $this->_info['file']['Name'] = basename($this->_fileName); 122955efc227SAndreas Gohr $this->_info['file']['Url'] = $this->_fileName; 123055efc227SAndreas Gohr } 123155efc227SAndreas Gohr 123255efc227SAndreas Gohr return true; 123355efc227SAndreas Gohr } 123455efc227SAndreas Gohr 123555efc227SAndreas Gohr /*************************************************************/ 123655efc227SAndreas Gohr function _parseMarkerJFIF() 123755efc227SAndreas Gohr { 123855efc227SAndreas Gohr if (!isset($this->_markers)) { 123955efc227SAndreas Gohr $this->_readJPEG(); 124055efc227SAndreas Gohr } 124155efc227SAndreas Gohr 124255efc227SAndreas Gohr if ($this->_markers == null) { 124355efc227SAndreas Gohr return false; 124455efc227SAndreas Gohr } 124555efc227SAndreas Gohr 124655efc227SAndreas Gohr $data = null; 124755efc227SAndreas Gohr $count = count($this->_markers); 124855efc227SAndreas Gohr for ($i = 0; $i < $count; $i++) { 124955efc227SAndreas Gohr if ($this->_markers[$i]['marker'] == 0xE0) { 125055efc227SAndreas Gohr $signature = $this->_getFixedString($this->_markers[$i]['data'], 0, 4); 125155efc227SAndreas Gohr if ($signature == 'JFIF') { 125255efc227SAndreas Gohr $data =& $this->_markers[$i]['data']; 125355efc227SAndreas Gohr break; 125455efc227SAndreas Gohr } 125555efc227SAndreas Gohr } 125655efc227SAndreas Gohr } 125755efc227SAndreas Gohr 125855efc227SAndreas Gohr if ($data == null) { 125955efc227SAndreas Gohr $this->_info['jfif'] = false; 126055efc227SAndreas Gohr return false; 126155efc227SAndreas Gohr } 126255efc227SAndreas Gohr 126355efc227SAndreas Gohr $pos = 0; 126455efc227SAndreas Gohr $this->_info['jfif'] = array(); 126555efc227SAndreas Gohr 126655efc227SAndreas Gohr 126755efc227SAndreas Gohr $vmaj = $this->_getByte($data, 5); 126855efc227SAndreas Gohr $vmin = $this->_getByte($data, 6); 126955efc227SAndreas Gohr 127055efc227SAndreas Gohr $this->_info['jfif']['Version'] = sprintf('%d.%02d', $vmaj, $vmin); 127155efc227SAndreas Gohr 127255efc227SAndreas Gohr $units = $this->_getByte($data, 7); 127355efc227SAndreas Gohr switch ($units) { 127455efc227SAndreas Gohr case 0: 127555efc227SAndreas Gohr $this->_info['jfif']['Units'] = 'pixels'; 127655efc227SAndreas Gohr break; 127755efc227SAndreas Gohr case 1: 127855efc227SAndreas Gohr $this->_info['jfif']['Units'] = 'dpi'; 127955efc227SAndreas Gohr break; 128055efc227SAndreas Gohr case 2: 128155efc227SAndreas Gohr $this->_info['jfif']['Units'] = 'dpcm'; 128255efc227SAndreas Gohr break; 128355efc227SAndreas Gohr default: 128455efc227SAndreas Gohr $this->_info['jfif']['Units'] = 'unknown'; 128555efc227SAndreas Gohr break; 128655efc227SAndreas Gohr } 128755efc227SAndreas Gohr 128855efc227SAndreas Gohr $xdens = $this->_getShort($data, 8); 128955efc227SAndreas Gohr $ydens = $this->_getShort($data, 10); 129055efc227SAndreas Gohr 129155efc227SAndreas Gohr $this->_info['jfif']['XDensity'] = $xdens; 129255efc227SAndreas Gohr $this->_info['jfif']['YDensity'] = $ydens; 129355efc227SAndreas Gohr 129455efc227SAndreas Gohr $thumbx = $this->_getByte($data, 12); 129555efc227SAndreas Gohr $thumby = $this->_getByte($data, 13); 129655efc227SAndreas Gohr 129755efc227SAndreas Gohr $this->_info['jfif']['ThumbnailWidth'] = $thumbx; 129855efc227SAndreas Gohr $this->_info['jfif']['ThumbnailHeight'] = $thumby; 129955efc227SAndreas Gohr 130055efc227SAndreas Gohr return true; 130155efc227SAndreas Gohr } 130255efc227SAndreas Gohr 130355efc227SAndreas Gohr /*************************************************************/ 130455efc227SAndreas Gohr function _parseMarkerSOF() 130555efc227SAndreas Gohr { 130655efc227SAndreas Gohr if (!isset($this->_markers)) { 130755efc227SAndreas Gohr $this->_readJPEG(); 130855efc227SAndreas Gohr } 130955efc227SAndreas Gohr 131055efc227SAndreas Gohr if ($this->_markers == null) { 131155efc227SAndreas Gohr return false; 131255efc227SAndreas Gohr } 131355efc227SAndreas Gohr 131455efc227SAndreas Gohr $data = null; 131555efc227SAndreas Gohr $count = count($this->_markers); 131655efc227SAndreas Gohr for ($i = 0; $i < $count; $i++) { 131755efc227SAndreas Gohr switch ($this->_markers[$i]['marker']) { 131855efc227SAndreas Gohr case 0xC0: // SOF0 131955efc227SAndreas Gohr case 0xC1: // SOF1 132055efc227SAndreas Gohr case 0xC2: // SOF2 132155efc227SAndreas Gohr case 0xC9: // SOF9 132255efc227SAndreas Gohr $data =& $this->_markers[$i]['data']; 132355efc227SAndreas Gohr $marker = $this->_markers[$i]['marker']; 132455efc227SAndreas Gohr break; 132555efc227SAndreas Gohr } 132655efc227SAndreas Gohr } 132755efc227SAndreas Gohr 132855efc227SAndreas Gohr if ($data == null) { 132955efc227SAndreas Gohr $this->_info['sof'] = false; 133055efc227SAndreas Gohr return false; 133155efc227SAndreas Gohr } 133255efc227SAndreas Gohr 133355efc227SAndreas Gohr $pos = 0; 133455efc227SAndreas Gohr $this->_info['sof'] = array(); 133555efc227SAndreas Gohr 133655efc227SAndreas Gohr 133755efc227SAndreas Gohr switch ($marker) { 133855efc227SAndreas Gohr case 0xC0: // SOF0 133955efc227SAndreas Gohr $format = 'Baseline'; 134055efc227SAndreas Gohr break; 134155efc227SAndreas Gohr case 0xC1: // SOF1 134255efc227SAndreas Gohr $format = 'Progessive'; 134355efc227SAndreas Gohr break; 134455efc227SAndreas Gohr case 0xC2: // SOF2 134555efc227SAndreas Gohr $format = 'Non-baseline'; 134655efc227SAndreas Gohr break; 134755efc227SAndreas Gohr case 0xC9: // SOF9 134855efc227SAndreas Gohr $format = 'Arithmetic'; 134955efc227SAndreas Gohr break; 135055efc227SAndreas Gohr default: 135155efc227SAndreas Gohr return false; 135255efc227SAndreas Gohr break; 135355efc227SAndreas Gohr } 135455efc227SAndreas Gohr 135555efc227SAndreas Gohr 135655efc227SAndreas Gohr $this->_info['sof']['Format'] = $format; 135755efc227SAndreas Gohr 135855efc227SAndreas Gohr $this->_info['sof']['SamplePrecision'] = $this->_getByte($data, $pos + 0); 135955efc227SAndreas Gohr $this->_info['sof']['ImageHeight'] = $this->_getShort($data, $pos + 1); 136055efc227SAndreas Gohr $this->_info['sof']['ImageWidth'] = $this->_getShort($data, $pos + 3); 136155efc227SAndreas Gohr $this->_info['sof']['ColorChannels'] = $this->_getByte($data, $pos + 5); 136255efc227SAndreas Gohr 136355efc227SAndreas Gohr return true; 136455efc227SAndreas Gohr } 136555efc227SAndreas Gohr 136655efc227SAndreas Gohr /*************************************************************/ 136755efc227SAndreas Gohr function _parseMarkerExif() 136855efc227SAndreas Gohr { 136955efc227SAndreas Gohr if (!isset($this->_markers)) { 137055efc227SAndreas Gohr $this->_readJPEG(); 137155efc227SAndreas Gohr } 137255efc227SAndreas Gohr 137355efc227SAndreas Gohr if ($this->_markers == null) { 137455efc227SAndreas Gohr return false; 137555efc227SAndreas Gohr } 137655efc227SAndreas Gohr 137755efc227SAndreas Gohr $data = null; 137855efc227SAndreas Gohr $count = count($this->_markers); 137955efc227SAndreas Gohr for ($i = 0; $i < $count; $i++) { 138055efc227SAndreas Gohr if ($this->_markers[$i]['marker'] == 0xE1) { 138155efc227SAndreas Gohr $signature = $this->_getFixedString($this->_markers[$i]['data'], 0, 6); 138255efc227SAndreas Gohr if ($signature == "Exif\0\0") { 138355efc227SAndreas Gohr $data =& $this->_markers[$i]['data']; 138455efc227SAndreas Gohr break; 138555efc227SAndreas Gohr } 138655efc227SAndreas Gohr } 138755efc227SAndreas Gohr } 138855efc227SAndreas Gohr 138955efc227SAndreas Gohr if ($data == null) { 139055efc227SAndreas Gohr $this->_info['exif'] = false; 139155efc227SAndreas Gohr return false; 139255efc227SAndreas Gohr } 139355efc227SAndreas Gohr $pos = 6; 139455efc227SAndreas Gohr $this->_info['exif'] = array(); 139555efc227SAndreas Gohr 139655efc227SAndreas Gohr // We don't increment $pos after this because Exif uses offsets relative to this point 139755efc227SAndreas Gohr 139855efc227SAndreas Gohr $byteAlign = $this->_getShort($data, $pos + 0); 139955efc227SAndreas Gohr 140055efc227SAndreas Gohr if ($byteAlign == 0x4949) { // "II" 140155efc227SAndreas Gohr $isBigEndian = false; 140255efc227SAndreas Gohr } 140355efc227SAndreas Gohr elseif ($byteAlign == 0x4D4D) { // "MM" 140455efc227SAndreas Gohr $isBigEndian = true; 140555efc227SAndreas Gohr } 140655efc227SAndreas Gohr else { 140755efc227SAndreas Gohr return false; // Unexpected data 140855efc227SAndreas Gohr } 140955efc227SAndreas Gohr 141055efc227SAndreas Gohr $alignCheck = $this->_getShort($data, $pos + 2, $isBigEndian); 141155efc227SAndreas Gohr if ($alignCheck != 0x002A) // That's the expected value 141255efc227SAndreas Gohr return false; // Unexpected data 141355efc227SAndreas Gohr 141455efc227SAndreas Gohr if ($isBigEndian) { 141555efc227SAndreas Gohr $this->_info['exif']['ByteAlign'] = "Big Endian"; 141655efc227SAndreas Gohr } 141755efc227SAndreas Gohr else { 141855efc227SAndreas Gohr $this->_info['exif']['ByteAlign'] = "Little Endian"; 141955efc227SAndreas Gohr } 142055efc227SAndreas Gohr 142155efc227SAndreas Gohr $offsetIFD0 = $this->_getLong($data, $pos + 4, $isBigEndian); 142255efc227SAndreas Gohr if ($offsetIFD0 < 8) 142355efc227SAndreas Gohr return false; // Unexpected data 142455efc227SAndreas Gohr 142555efc227SAndreas Gohr $offsetIFD1 = $this->_readIFD($data, $pos, $offsetIFD0, $isBigEndian, 'ifd0'); 142655efc227SAndreas Gohr if ($offsetIFD1 != 0) 142755efc227SAndreas Gohr $this->_readIFD($data, $pos, $offsetIFD1, $isBigEndian, 'ifd1'); 142855efc227SAndreas Gohr 142955efc227SAndreas Gohr return true; 143055efc227SAndreas Gohr } 143155efc227SAndreas Gohr 143255efc227SAndreas Gohr /*************************************************************/ 143355efc227SAndreas Gohr function _readIFD($data, $base, $offset, $isBigEndian, $mode) 143455efc227SAndreas Gohr { 143555efc227SAndreas Gohr $EXIFTags = $this->_exifTagNames($mode); 143655efc227SAndreas Gohr 143755efc227SAndreas Gohr $numEntries = $this->_getShort($data, $base + $offset, $isBigEndian); 143855efc227SAndreas Gohr $offset += 2; 143955efc227SAndreas Gohr 144055efc227SAndreas Gohr $exifTIFFOffset = 0; 144155efc227SAndreas Gohr $exifTIFFLength = 0; 144255efc227SAndreas Gohr $exifThumbnailOffset = 0; 144355efc227SAndreas Gohr $exifThumbnailLength = 0; 144455efc227SAndreas Gohr 144555efc227SAndreas Gohr for ($i = 0; $i < $numEntries; $i++) { 144655efc227SAndreas Gohr $tag = $this->_getShort($data, $base + $offset, $isBigEndian); 144755efc227SAndreas Gohr $offset += 2; 144855efc227SAndreas Gohr $type = $this->_getShort($data, $base + $offset, $isBigEndian); 144955efc227SAndreas Gohr $offset += 2; 145055efc227SAndreas Gohr $count = $this->_getLong($data, $base + $offset, $isBigEndian); 145155efc227SAndreas Gohr $offset += 4; 145255efc227SAndreas Gohr 145355efc227SAndreas Gohr if (($type < 1) || ($type > 12)) 145455efc227SAndreas Gohr return false; // Unexpected Type 145555efc227SAndreas Gohr 145655efc227SAndreas Gohr $typeLengths = array( -1, 1, 1, 2, 4, 8, 1, 1, 2, 4, 8, 4, 8 ); 145755efc227SAndreas Gohr 145855efc227SAndreas Gohr $dataLength = $typeLengths[$type] * $count; 145955efc227SAndreas Gohr if ($dataLength > 4) { 146055efc227SAndreas Gohr $dataOffset = $this->_getLong($data, $base + $offset, $isBigEndian); 146155efc227SAndreas Gohr $rawValue = $this->_getFixedString($data, $base + $dataOffset, $dataLength); 146255efc227SAndreas Gohr } 146355efc227SAndreas Gohr else { 146455efc227SAndreas Gohr $rawValue = $this->_getFixedString($data, $base + $offset, $dataLength); 146555efc227SAndreas Gohr } 146655efc227SAndreas Gohr $offset += 4; 146755efc227SAndreas Gohr 146855efc227SAndreas Gohr switch ($type) { 146955efc227SAndreas Gohr case 1: // UBYTE 147055efc227SAndreas Gohr if ($count == 1) { 147155efc227SAndreas Gohr $value = $this->_getByte($rawValue, 0); 147255efc227SAndreas Gohr } 147355efc227SAndreas Gohr else { 147455efc227SAndreas Gohr $value = array(); 147555efc227SAndreas Gohr for ($j = 0; $j < $count; $j++) 147655efc227SAndreas Gohr $value[$j] = $this->_getByte($rawValue, $j); 147755efc227SAndreas Gohr } 147855efc227SAndreas Gohr break; 147955efc227SAndreas Gohr case 2: // ASCII 148055efc227SAndreas Gohr $value = $rawValue; 148155efc227SAndreas Gohr break; 148255efc227SAndreas Gohr case 3: // USHORT 148355efc227SAndreas Gohr if ($count == 1) { 148455efc227SAndreas Gohr $value = $this->_getShort($rawValue, 0, $isBigEndian); 148555efc227SAndreas Gohr } 148655efc227SAndreas Gohr else { 148755efc227SAndreas Gohr $value = array(); 148855efc227SAndreas Gohr for ($j = 0; $j < $count; $j++) 148955efc227SAndreas Gohr $value[$j] = $this->_getShort($rawValue, $j * 2, $isBigEndian); 149055efc227SAndreas Gohr } 149155efc227SAndreas Gohr break; 149255efc227SAndreas Gohr case 4: // ULONG 149355efc227SAndreas Gohr if ($count == 1) { 149455efc227SAndreas Gohr $value = $this->_getLong($rawValue, 0, $isBigEndian); 149555efc227SAndreas Gohr } 149655efc227SAndreas Gohr else { 149755efc227SAndreas Gohr $value = array(); 149855efc227SAndreas Gohr for ($j = 0; $j < $count; $j++) 149955efc227SAndreas Gohr $value[$j] = $this->_getLong($rawValue, $j * 4, $isBigEndian); 150055efc227SAndreas Gohr } 150155efc227SAndreas Gohr break; 150255efc227SAndreas Gohr case 5: // URATIONAL 150355efc227SAndreas Gohr if ($count == 1) { 150455efc227SAndreas Gohr $a = $this->_getLong($rawValue, 0, $isBigEndian); 150555efc227SAndreas Gohr $b = $this->_getLong($rawValue, 4, $isBigEndian); 150655efc227SAndreas Gohr $value = array(); 150755efc227SAndreas Gohr $value['val'] = 0; 150855efc227SAndreas Gohr $value['num'] = $a; 150955efc227SAndreas Gohr $value['den'] = $b; 151055efc227SAndreas Gohr if (($a != 0) && ($b != 0)) { 151155efc227SAndreas Gohr $value['val'] = $a / $b; 151255efc227SAndreas Gohr } 151355efc227SAndreas Gohr } 151455efc227SAndreas Gohr else { 151555efc227SAndreas Gohr $value = array(); 151655efc227SAndreas Gohr for ($j = 0; $j < $count; $j++) { 151755efc227SAndreas Gohr $a = $this->_getLong($rawValue, $j * 8, $isBigEndian); 151855efc227SAndreas Gohr $b = $this->_getLong($rawValue, ($j * 8) + 4, $isBigEndian); 151955efc227SAndreas Gohr $value = array(); 152055efc227SAndreas Gohr $value[$j]['val'] = 0; 152155efc227SAndreas Gohr $value[$j]['num'] = $a; 152255efc227SAndreas Gohr $value[$j]['den'] = $b; 152355efc227SAndreas Gohr if (($a != 0) && ($b != 0)) 152455efc227SAndreas Gohr $value[$j]['val'] = $a / $b; 152555efc227SAndreas Gohr } 152655efc227SAndreas Gohr } 152755efc227SAndreas Gohr break; 152855efc227SAndreas Gohr case 6: // SBYTE 152955efc227SAndreas Gohr if ($count == 1) { 153055efc227SAndreas Gohr $value = $this->_getByte($rawValue, 0); 153155efc227SAndreas Gohr } 153255efc227SAndreas Gohr else { 153355efc227SAndreas Gohr $value = array(); 153455efc227SAndreas Gohr for ($j = 0; $j < $count; $j++) 153555efc227SAndreas Gohr $value[$j] = $this->_getByte($rawValue, $j); 153655efc227SAndreas Gohr } 153755efc227SAndreas Gohr break; 153855efc227SAndreas Gohr case 7: // UNDEFINED 153955efc227SAndreas Gohr $value = $rawValue; 154055efc227SAndreas Gohr break; 154155efc227SAndreas Gohr case 8: // SSHORT 154255efc227SAndreas Gohr if ($count == 1) { 154355efc227SAndreas Gohr $value = $this->_getShort($rawValue, 0, $isBigEndian); 154455efc227SAndreas Gohr } 154555efc227SAndreas Gohr else { 154655efc227SAndreas Gohr $value = array(); 154755efc227SAndreas Gohr for ($j = 0; $j < $count; $j++) 154855efc227SAndreas Gohr $value[$j] = $this->_getShort($rawValue, $j * 2, $isBigEndian); 154955efc227SAndreas Gohr } 155055efc227SAndreas Gohr break; 155155efc227SAndreas Gohr case 9: // SLONG 155255efc227SAndreas Gohr if ($count == 1) { 155355efc227SAndreas Gohr $value = $this->_getLong($rawValue, 0, $isBigEndian); 155455efc227SAndreas Gohr } 155555efc227SAndreas Gohr else { 155655efc227SAndreas Gohr $value = array(); 155755efc227SAndreas Gohr for ($j = 0; $j < $count; $j++) 155855efc227SAndreas Gohr $value[$j] = $this->_getLong($rawValue, $j * 4, $isBigEndian); 155955efc227SAndreas Gohr } 156055efc227SAndreas Gohr break; 156155efc227SAndreas Gohr case 10: // SRATIONAL 156255efc227SAndreas Gohr if ($count == 1) { 156355efc227SAndreas Gohr $a = $this->_getLong($rawValue, 0, $isBigEndian); 156455efc227SAndreas Gohr $b = $this->_getLong($rawValue, 4, $isBigEndian); 156555efc227SAndreas Gohr $value = array(); 156655efc227SAndreas Gohr $value['val'] = 0; 156755efc227SAndreas Gohr $value['num'] = $a; 156855efc227SAndreas Gohr $value['den'] = $b; 156955efc227SAndreas Gohr if (($a != 0) && ($b != 0)) 157055efc227SAndreas Gohr $value['val'] = $a / $b; 157155efc227SAndreas Gohr } 157255efc227SAndreas Gohr else { 157355efc227SAndreas Gohr $value = array(); 157455efc227SAndreas Gohr for ($j = 0; $j < $count; $j++) { 157555efc227SAndreas Gohr $a = $this->_getLong($rawValue, $j * 8, $isBigEndian); 157655efc227SAndreas Gohr $b = $this->_getLong($rawValue, ($j * 8) + 4, $isBigEndian); 157755efc227SAndreas Gohr $value = array(); 157855efc227SAndreas Gohr $value[$j]['val'] = 0; 157955efc227SAndreas Gohr $value[$j]['num'] = $a; 158055efc227SAndreas Gohr $value[$j]['den'] = $b; 158155efc227SAndreas Gohr if (($a != 0) && ($b != 0)) 158255efc227SAndreas Gohr $value[$j]['val'] = $a / $b; 158355efc227SAndreas Gohr } 158455efc227SAndreas Gohr } 158555efc227SAndreas Gohr break; 158655efc227SAndreas Gohr case 11: // FLOAT 158755efc227SAndreas Gohr $value = $rawValue; 158855efc227SAndreas Gohr break; 158955efc227SAndreas Gohr 159055efc227SAndreas Gohr case 12: // DFLOAT 159155efc227SAndreas Gohr $value = $rawValue; 159255efc227SAndreas Gohr break; 159355efc227SAndreas Gohr default: 159455efc227SAndreas Gohr return false; // Unexpected Type 159555efc227SAndreas Gohr } 159655efc227SAndreas Gohr 159755efc227SAndreas Gohr $tagName = ''; 159855efc227SAndreas Gohr if (($mode == 'ifd0') && ($tag == 0x8769)) { // ExifIFDOffset 159955efc227SAndreas Gohr $this->_readIFD($data, $base, $value, $isBigEndian, 'exif'); 160055efc227SAndreas Gohr } 160155efc227SAndreas Gohr elseif (($mode == 'ifd0') && ($tag == 0x8825)) { // GPSIFDOffset 160255efc227SAndreas Gohr $this->_readIFD($data, $base, $value, $isBigEndian, 'gps'); 160355efc227SAndreas Gohr } 160455efc227SAndreas Gohr elseif (($mode == 'ifd1') && ($tag == 0x0111)) { // TIFFStripOffsets 160555efc227SAndreas Gohr $exifTIFFOffset = $value; 160655efc227SAndreas Gohr } 160755efc227SAndreas Gohr elseif (($mode == 'ifd1') && ($tag == 0x0117)) { // TIFFStripByteCounts 160855efc227SAndreas Gohr $exifTIFFLength = $value; 160955efc227SAndreas Gohr } 161055efc227SAndreas Gohr elseif (($mode == 'ifd1') && ($tag == 0x0201)) { // TIFFJFIFOffset 161155efc227SAndreas Gohr $exifThumbnailOffset = $value; 161255efc227SAndreas Gohr } 161355efc227SAndreas Gohr elseif (($mode == 'ifd1') && ($tag == 0x0202)) { // TIFFJFIFLength 161455efc227SAndreas Gohr $exifThumbnailLength = $value; 161555efc227SAndreas Gohr } 161655efc227SAndreas Gohr elseif (($mode == 'exif') && ($tag == 0xA005)) { // InteropIFDOffset 161755efc227SAndreas Gohr $this->_readIFD($data, $base, $value, $isBigEndian, 'interop'); 161855efc227SAndreas Gohr } 161955efc227SAndreas Gohr // elseif (($mode == 'exif') && ($tag == 0x927C)) { // MakerNote 162055efc227SAndreas Gohr // } 162155efc227SAndreas Gohr else { 162255efc227SAndreas Gohr if (isset($EXIFTags[$tag])) { 162355efc227SAndreas Gohr $tagName = $EXIFTags[$tag]; 162455efc227SAndreas Gohr if (isset($this->_info['exif'][$tagName])) { 162555efc227SAndreas Gohr if (!is_array($this->_info['exif'][$tagName])) { 162655efc227SAndreas Gohr $aux = array(); 162755efc227SAndreas Gohr $aux[0] = $this->_info['exif'][$tagName]; 162855efc227SAndreas Gohr $this->_info['exif'][$tagName] = $aux; 162955efc227SAndreas Gohr } 163055efc227SAndreas Gohr 163155efc227SAndreas Gohr $this->_info['exif'][$tagName][count($this->_info['exif'][$tagName])] = $value; 163255efc227SAndreas Gohr } 163355efc227SAndreas Gohr else { 163455efc227SAndreas Gohr $this->_info['exif'][$tagName] = $value; 163555efc227SAndreas Gohr } 163655efc227SAndreas Gohr } 163755efc227SAndreas Gohr else { 163855efc227SAndreas Gohr#echo sprintf("<h1>Unknown tag %02x (t: %d l: %d) %s in %s</h1>", $tag, $type, $count, $mode, $this->_fileName); 163955efc227SAndreas Gohr // Unknown Tags will be ignored!!! 164055efc227SAndreas Gohr // That's because the tag might be a pointer (like the Exif tag) 164155efc227SAndreas Gohr // and saving it without saving the data it points to might 164255efc227SAndreas Gohr // create an invalid file. 164355efc227SAndreas Gohr } 164455efc227SAndreas Gohr } 164555efc227SAndreas Gohr } 164655efc227SAndreas Gohr 164755efc227SAndreas Gohr if (($exifThumbnailOffset > 0) && ($exifThumbnailLength > 0)) { 164855efc227SAndreas Gohr $this->_info['exif']['JFIFThumbnail'] = $this->_getFixedString($data, $base + $exifThumbnailOffset, $exifThumbnailLength); 164955efc227SAndreas Gohr } 165055efc227SAndreas Gohr 165155efc227SAndreas Gohr if (($exifTIFFOffset > 0) && ($exifTIFFLength > 0)) { 165255efc227SAndreas Gohr $this->_info['exif']['TIFFStrips'] = $this->_getFixedString($data, $base + $exifTIFFOffset, $exifTIFFLength); 165355efc227SAndreas Gohr } 165455efc227SAndreas Gohr 165555efc227SAndreas Gohr $nextOffset = $this->_getLong($data, $base + $offset, $isBigEndian); 165655efc227SAndreas Gohr return $nextOffset; 165755efc227SAndreas Gohr } 165855efc227SAndreas Gohr 165955efc227SAndreas Gohr /*************************************************************/ 166055efc227SAndreas Gohr function & _createMarkerExif() 166155efc227SAndreas Gohr { 166255efc227SAndreas Gohr $data = null; 166355efc227SAndreas Gohr $count = count($this->_markers); 166455efc227SAndreas Gohr for ($i = 0; $i < $count; $i++) { 166555efc227SAndreas Gohr if ($this->_markers[$i]['marker'] == 0xE1) { 166655efc227SAndreas Gohr $signature = $this->_getFixedString($this->_markers[$i]['data'], 0, 6); 166755efc227SAndreas Gohr if ($signature == "Exif\0\0") { 166855efc227SAndreas Gohr $data =& $this->_markers[$i]['data']; 166955efc227SAndreas Gohr break; 167055efc227SAndreas Gohr } 167155efc227SAndreas Gohr } 167255efc227SAndreas Gohr } 167355efc227SAndreas Gohr 167455efc227SAndreas Gohr if (!isset($this->_info['exif'])) { 167555efc227SAndreas Gohr return false; 167655efc227SAndreas Gohr } 167755efc227SAndreas Gohr 167855efc227SAndreas Gohr $data = "Exif\0\0"; 167955efc227SAndreas Gohr $pos = 6; 168055efc227SAndreas Gohr $offsetBase = 6; 168155efc227SAndreas Gohr 168255efc227SAndreas Gohr if (isset($this->_info['exif']['ByteAlign']) && ($this->_info['exif']['ByteAlign'] == "Big Endian")) { 168355efc227SAndreas Gohr $isBigEndian = true; 168455efc227SAndreas Gohr $aux = "MM"; 168555efc227SAndreas Gohr $pos = $this->_putString($data, $pos, $aux); 168655efc227SAndreas Gohr } 168755efc227SAndreas Gohr else { 168855efc227SAndreas Gohr $isBigEndian = false; 168955efc227SAndreas Gohr $aux = "II"; 169055efc227SAndreas Gohr $pos = $this->_putString($data, $pos, $aux); 169155efc227SAndreas Gohr } 169255efc227SAndreas Gohr $pos = $this->_putShort($data, $pos, 0x002A, $isBigEndian); 169355efc227SAndreas Gohr $pos = $this->_putLong($data, $pos, 0x00000008, $isBigEndian); // IFD0 Offset is always 8 169455efc227SAndreas Gohr 169555efc227SAndreas Gohr $ifd0 =& $this->_getIFDEntries($isBigEndian, 'ifd0'); 169655efc227SAndreas Gohr $ifd1 =& $this->_getIFDEntries($isBigEndian, 'ifd1'); 169755efc227SAndreas Gohr 169855efc227SAndreas Gohr $pos = $this->_writeIFD($data, $pos, $offsetBase, $ifd0, $isBigEndian, true); 169955efc227SAndreas Gohr $pos = $this->_writeIFD($data, $pos, $offsetBase, $ifd1, $isBigEndian, false); 170055efc227SAndreas Gohr 170155efc227SAndreas Gohr return $data; 170255efc227SAndreas Gohr } 170355efc227SAndreas Gohr 170455efc227SAndreas Gohr /*************************************************************/ 170555efc227SAndreas Gohr function _writeIFD(&$data, $pos, $offsetBase, &$entries, $isBigEndian, $hasNext) 170655efc227SAndreas Gohr { 170755efc227SAndreas Gohr $tiffData = null; 170855efc227SAndreas Gohr $tiffDataOffsetPos = -1; 170955efc227SAndreas Gohr 171055efc227SAndreas Gohr $entryCount = count($entries); 171155efc227SAndreas Gohr 171255efc227SAndreas Gohr $dataPos = $pos + 2 + ($entryCount * 12) + 4; 171355efc227SAndreas Gohr $pos = $this->_putShort($data, $pos, $entryCount, $isBigEndian); 171455efc227SAndreas Gohr 171555efc227SAndreas Gohr for ($i = 0; $i < $entryCount; $i++) { 171655efc227SAndreas Gohr $tag = $entries[$i]['tag']; 171755efc227SAndreas Gohr $type = $entries[$i]['type']; 171855efc227SAndreas Gohr 171955efc227SAndreas Gohr if ($type == -99) { // SubIFD 172055efc227SAndreas Gohr $pos = $this->_putShort($data, $pos, $tag, $isBigEndian); 172155efc227SAndreas Gohr $pos = $this->_putShort($data, $pos, 0x04, $isBigEndian); // LONG 172255efc227SAndreas Gohr $pos = $this->_putLong($data, $pos, 0x01, $isBigEndian); // Count = 1 172355efc227SAndreas Gohr $pos = $this->_putLong($data, $pos, $dataPos - $offsetBase, $isBigEndian); 172455efc227SAndreas Gohr 172555efc227SAndreas Gohr $dataPos = $this->_writeIFD($data, $dataPos, $offsetBase, $entries[$i]['value'], $isBigEndian, false); 172655efc227SAndreas Gohr } 172755efc227SAndreas Gohr elseif ($type == -98) { // TIFF Data 172855efc227SAndreas Gohr $pos = $this->_putShort($data, $pos, $tag, $isBigEndian); 172955efc227SAndreas Gohr $pos = $this->_putShort($data, $pos, 0x04, $isBigEndian); // LONG 173055efc227SAndreas Gohr $pos = $this->_putLong($data, $pos, 0x01, $isBigEndian); // Count = 1 173155efc227SAndreas Gohr $tiffDataOffsetPos = $pos; 173255efc227SAndreas Gohr $pos = $this->_putLong($data, $pos, 0x00, $isBigEndian); // For Now 173355efc227SAndreas Gohr $tiffData =& $entries[$i]['value'] ; 173455efc227SAndreas Gohr } 173555efc227SAndreas Gohr else { // Regular Entry 173655efc227SAndreas Gohr $pos = $this->_putShort($data, $pos, $tag, $isBigEndian); 173755efc227SAndreas Gohr $pos = $this->_putShort($data, $pos, $type, $isBigEndian); 173855efc227SAndreas Gohr $pos = $this->_putLong($data, $pos, $entries[$i]['count'], $isBigEndian); 173955efc227SAndreas Gohr if (strlen($entries[$i]['value']) > 4) { 174055efc227SAndreas Gohr $pos = $this->_putLong($data, $pos, $dataPos - $offsetBase, $isBigEndian); 174155efc227SAndreas Gohr $dataPos = $this->_putString($data, $dataPos, $entries[$i]['value']); 174255efc227SAndreas Gohr } 174355efc227SAndreas Gohr else { 174455efc227SAndreas Gohr $val = str_pad($entries[$i]['value'], 4, "\0"); 174555efc227SAndreas Gohr $pos = $this->_putString($data, $pos, $val); 174655efc227SAndreas Gohr } 174755efc227SAndreas Gohr } 174855efc227SAndreas Gohr } 174955efc227SAndreas Gohr 175055efc227SAndreas Gohr if ($tiffData != null) { 175155efc227SAndreas Gohr $this->_putLong($data, $tiffDataOffsetPos, $dataPos - $offsetBase, $isBigEndian); 175255efc227SAndreas Gohr $dataPos = $this->_putString($data, $dataPos, $tiffData); 175355efc227SAndreas Gohr } 175455efc227SAndreas Gohr 175555efc227SAndreas Gohr if ($hasNext) { 175655efc227SAndreas Gohr $pos = $this->_putLong($data, $pos, $dataPos - $offsetBase, $isBigEndian); 175755efc227SAndreas Gohr } 175855efc227SAndreas Gohr else { 175955efc227SAndreas Gohr $pos = $this->_putLong($data, $pos, 0, $isBigEndian); 176055efc227SAndreas Gohr } 176155efc227SAndreas Gohr 176255efc227SAndreas Gohr return $dataPos; 176355efc227SAndreas Gohr } 176455efc227SAndreas Gohr 176555efc227SAndreas Gohr /*************************************************************/ 176655efc227SAndreas Gohr function & _getIFDEntries($isBigEndian, $mode) 176755efc227SAndreas Gohr { 176855efc227SAndreas Gohr $EXIFNames = $this->_exifTagNames($mode); 176955efc227SAndreas Gohr $EXIFTags = $this->_exifNameTags($mode); 177055efc227SAndreas Gohr $EXIFTypeInfo = $this->_exifTagTypes($mode); 177155efc227SAndreas Gohr 177255efc227SAndreas Gohr $ifdEntries = array(); 177355efc227SAndreas Gohr $entryCount = 0; 177455efc227SAndreas Gohr 177555efc227SAndreas Gohr reset($EXIFNames); 177655efc227SAndreas Gohr while (list($tag, $name) = each($EXIFNames)) { 177755efc227SAndreas Gohr $type = $EXIFTypeInfo[$tag][0]; 177855efc227SAndreas Gohr $count = $EXIFTypeInfo[$tag][1]; 177955efc227SAndreas Gohr $value = null; 178055efc227SAndreas Gohr 178155efc227SAndreas Gohr if (($mode == 'ifd0') && ($tag == 0x8769)) { // ExifIFDOffset 178255efc227SAndreas Gohr if (isset($this->_info['exif']['EXIFVersion'])) { 178355efc227SAndreas Gohr $value =& $this->_getIFDEntries($isBigEndian, "exif"); 178455efc227SAndreas Gohr $type = -99; 178555efc227SAndreas Gohr } 178655efc227SAndreas Gohr else { 178755efc227SAndreas Gohr $value = null; 178855efc227SAndreas Gohr } 178955efc227SAndreas Gohr } 179055efc227SAndreas Gohr elseif (($mode == 'ifd0') && ($tag == 0x8825)) { // GPSIFDOffset 179155efc227SAndreas Gohr if (isset($this->_info['exif']['GPSVersionID'])) { 179255efc227SAndreas Gohr $value =& $this->_getIFDEntries($isBigEndian, "gps"); 179355efc227SAndreas Gohr $type = -99; 179455efc227SAndreas Gohr } 179555efc227SAndreas Gohr else { 179655efc227SAndreas Gohr $value = null; 179755efc227SAndreas Gohr } 179855efc227SAndreas Gohr } 179955efc227SAndreas Gohr elseif (($mode == 'ifd1') && ($tag == 0x0111)) { // TIFFStripOffsets 180055efc227SAndreas Gohr if (isset($this->_info['exif']['TIFFStrips'])) { 180155efc227SAndreas Gohr $value =& $this->_info['exif']['TIFFStrips']; 180255efc227SAndreas Gohr $type = -98; 180355efc227SAndreas Gohr } 180455efc227SAndreas Gohr else { 180555efc227SAndreas Gohr $value = null; 180655efc227SAndreas Gohr } 180755efc227SAndreas Gohr } 180855efc227SAndreas Gohr elseif (($mode == 'ifd1') && ($tag == 0x0117)) { // TIFFStripByteCounts 180955efc227SAndreas Gohr if (isset($this->_info['exif']['TIFFStrips'])) { 181055efc227SAndreas Gohr $value = strlen($this->_info['exif']['TIFFStrips']); 181155efc227SAndreas Gohr } 181255efc227SAndreas Gohr else { 181355efc227SAndreas Gohr $value = null; 181455efc227SAndreas Gohr } 181555efc227SAndreas Gohr } 181655efc227SAndreas Gohr elseif (($mode == 'ifd1') && ($tag == 0x0201)) { // TIFFJFIFOffset 181755efc227SAndreas Gohr if (isset($this->_info['exif']['JFIFThumbnail'])) { 181855efc227SAndreas Gohr $value =& $this->_info['exif']['JFIFThumbnail']; 181955efc227SAndreas Gohr $type = -98; 182055efc227SAndreas Gohr } 182155efc227SAndreas Gohr else { 182255efc227SAndreas Gohr $value = null; 182355efc227SAndreas Gohr } 182455efc227SAndreas Gohr } 182555efc227SAndreas Gohr elseif (($mode == 'ifd1') && ($tag == 0x0202)) { // TIFFJFIFLength 182655efc227SAndreas Gohr if (isset($this->_info['exif']['JFIFThumbnail'])) { 182755efc227SAndreas Gohr $value = strlen($this->_info['exif']['JFIFThumbnail']); 182855efc227SAndreas Gohr } 182955efc227SAndreas Gohr else { 183055efc227SAndreas Gohr $value = null; 183155efc227SAndreas Gohr } 183255efc227SAndreas Gohr } 183355efc227SAndreas Gohr elseif (($mode == 'exif') && ($tag == 0xA005)) { // InteropIFDOffset 183455efc227SAndreas Gohr if (isset($this->_info['exif']['InteroperabilityIndex'])) { 183555efc227SAndreas Gohr $value =& $this->_getIFDEntries($isBigEndian, "interop"); 183655efc227SAndreas Gohr $type = -99; 183755efc227SAndreas Gohr } 183855efc227SAndreas Gohr else { 183955efc227SAndreas Gohr $value = null; 184055efc227SAndreas Gohr } 184155efc227SAndreas Gohr } 184255efc227SAndreas Gohr elseif (isset($this->_info['exif'][$name])) { 184355efc227SAndreas Gohr $origValue =& $this->_info['exif'][$name]; 184455efc227SAndreas Gohr 184555efc227SAndreas Gohr // This makes it easier to process variable size elements 184655efc227SAndreas Gohr if (!is_array($origValue) || isset($origValue['val'])) { 184755efc227SAndreas Gohr unset($origValue); // Break the reference 184855efc227SAndreas Gohr $origValue = array($this->_info['exif'][$name]); 184955efc227SAndreas Gohr } 185055efc227SAndreas Gohr $origCount = count($origValue); 185155efc227SAndreas Gohr 185255efc227SAndreas Gohr if ($origCount == 0 ) { 185355efc227SAndreas Gohr $type = -1; // To ignore this field 185455efc227SAndreas Gohr } 185555efc227SAndreas Gohr 185655efc227SAndreas Gohr $value = " "; 185755efc227SAndreas Gohr 185855efc227SAndreas Gohr switch ($type) { 185955efc227SAndreas Gohr case 1: // UBYTE 186055efc227SAndreas Gohr if ($count == 0) { 186155efc227SAndreas Gohr $count = $origCount; 186255efc227SAndreas Gohr } 186355efc227SAndreas Gohr 186455efc227SAndreas Gohr $j = 0; 186555efc227SAndreas Gohr while (($j < $count) && ($j < $origCount)) { 186655efc227SAndreas Gohr 186755efc227SAndreas Gohr $this->_putByte($value, $j, $origValue[$j]); 186855efc227SAndreas Gohr $j++; 186955efc227SAndreas Gohr } 187055efc227SAndreas Gohr 187155efc227SAndreas Gohr while ($j < $count) { 187255efc227SAndreas Gohr $this->_putByte($value, $j, 0); 187355efc227SAndreas Gohr $j++; 187455efc227SAndreas Gohr } 187555efc227SAndreas Gohr break; 187655efc227SAndreas Gohr case 2: // ASCII 187755efc227SAndreas Gohr $v = strval($origValue[0]); 187855efc227SAndreas Gohr if (($count != 0) && (strlen($v) > $count)) { 187955efc227SAndreas Gohr $v = substr($v, 0, $count); 188055efc227SAndreas Gohr } 188155efc227SAndreas Gohr elseif (($count > 0) && (strlen($v) < $count)) { 188255efc227SAndreas Gohr $v = str_pad($v, $count, "\0"); 188355efc227SAndreas Gohr } 188455efc227SAndreas Gohr 188555efc227SAndreas Gohr $count = strlen($v); 188655efc227SAndreas Gohr 188755efc227SAndreas Gohr $this->_putString($value, 0, $v); 188855efc227SAndreas Gohr break; 188955efc227SAndreas Gohr case 3: // USHORT 189055efc227SAndreas Gohr if ($count == 0) { 189155efc227SAndreas Gohr $count = $origCount; 189255efc227SAndreas Gohr } 189355efc227SAndreas Gohr 189455efc227SAndreas Gohr $j = 0; 189555efc227SAndreas Gohr while (($j < $count) && ($j < $origCount)) { 189655efc227SAndreas Gohr $this->_putShort($value, $j * 2, $origValue[$j], $isBigEndian); 189755efc227SAndreas Gohr $j++; 189855efc227SAndreas Gohr } 189955efc227SAndreas Gohr 190055efc227SAndreas Gohr while ($j < $count) { 190155efc227SAndreas Gohr $this->_putShort($value, $j * 2, 0, $isBigEndian); 190255efc227SAndreas Gohr $j++; 190355efc227SAndreas Gohr } 190455efc227SAndreas Gohr break; 190555efc227SAndreas Gohr case 4: // ULONG 190655efc227SAndreas Gohr if ($count == 0) { 190755efc227SAndreas Gohr $count = $origCount; 190855efc227SAndreas Gohr } 190955efc227SAndreas Gohr 191055efc227SAndreas Gohr $j = 0; 191155efc227SAndreas Gohr while (($j < $count) && ($j < $origCount)) { 191255efc227SAndreas Gohr $this->_putLong($value, $j * 4, $origValue[$j], $isBigEndian); 191355efc227SAndreas Gohr $j++; 191455efc227SAndreas Gohr } 191555efc227SAndreas Gohr 191655efc227SAndreas Gohr while ($j < $count) { 191755efc227SAndreas Gohr $this->_putLong($value, $j * 4, 0, $isBigEndian); 191855efc227SAndreas Gohr $j++; 191955efc227SAndreas Gohr } 192055efc227SAndreas Gohr break; 192155efc227SAndreas Gohr case 5: // URATIONAL 192255efc227SAndreas Gohr if ($count == 0) { 192355efc227SAndreas Gohr $count = $origCount; 192455efc227SAndreas Gohr } 192555efc227SAndreas Gohr 192655efc227SAndreas Gohr $j = 0; 192755efc227SAndreas Gohr while (($j < $count) && ($j < $origCount)) { 192855efc227SAndreas Gohr $v = $origValue[$j]; 192955efc227SAndreas Gohr if (is_array($v)) { 193055efc227SAndreas Gohr $a = $v['num']; 193155efc227SAndreas Gohr $b = $v['den']; 193255efc227SAndreas Gohr } 193355efc227SAndreas Gohr else { 193455efc227SAndreas Gohr $a = 0; 193555efc227SAndreas Gohr $b = 0; 193655efc227SAndreas Gohr // TODO: Allow other types and convert them 193755efc227SAndreas Gohr } 193855efc227SAndreas Gohr $this->_putLong($value, $j * 8, $a, $isBigEndian); 193955efc227SAndreas Gohr $this->_putLong($value, ($j * 8) + 4, $b, $isBigEndian); 194055efc227SAndreas Gohr $j++; 194155efc227SAndreas Gohr } 194255efc227SAndreas Gohr 194355efc227SAndreas Gohr while ($j < $count) { 194455efc227SAndreas Gohr $this->_putLong($value, $j * 8, 0, $isBigEndian); 194555efc227SAndreas Gohr $this->_putLong($value, ($j * 8) + 4, 0, $isBigEndian); 194655efc227SAndreas Gohr $j++; 194755efc227SAndreas Gohr } 194855efc227SAndreas Gohr break; 194955efc227SAndreas Gohr case 6: // SBYTE 195055efc227SAndreas Gohr if ($count == 0) { 195155efc227SAndreas Gohr $count = $origCount; 195255efc227SAndreas Gohr } 195355efc227SAndreas Gohr 195455efc227SAndreas Gohr $j = 0; 195555efc227SAndreas Gohr while (($j < $count) && ($j < $origCount)) { 195655efc227SAndreas Gohr $this->_putByte($value, $j, $origValue[$j]); 195755efc227SAndreas Gohr $j++; 195855efc227SAndreas Gohr } 195955efc227SAndreas Gohr 196055efc227SAndreas Gohr while ($j < $count) { 196155efc227SAndreas Gohr $this->_putByte($value, $j, 0); 196255efc227SAndreas Gohr $j++; 196355efc227SAndreas Gohr } 196455efc227SAndreas Gohr break; 196555efc227SAndreas Gohr case 7: // UNDEFINED 196655efc227SAndreas Gohr $v = strval($origValue[0]); 196755efc227SAndreas Gohr if (($count != 0) && (strlen($v) > $count)) { 196855efc227SAndreas Gohr $v = substr($v, 0, $count); 196955efc227SAndreas Gohr } 197055efc227SAndreas Gohr elseif (($count > 0) && (strlen($v) < $count)) { 197155efc227SAndreas Gohr $v = str_pad($v, $count, "\0"); 197255efc227SAndreas Gohr } 197355efc227SAndreas Gohr 197455efc227SAndreas Gohr $count = strlen($v); 197555efc227SAndreas Gohr 197655efc227SAndreas Gohr $this->_putString($value, 0, $v); 197755efc227SAndreas Gohr break; 197855efc227SAndreas Gohr case 8: // SSHORT 197955efc227SAndreas Gohr if ($count == 0) { 198055efc227SAndreas Gohr $count = $origCount; 198155efc227SAndreas Gohr } 198255efc227SAndreas Gohr 198355efc227SAndreas Gohr $j = 0; 198455efc227SAndreas Gohr while (($j < $count) && ($j < $origCount)) { 198555efc227SAndreas Gohr $this->_putShort($value, $j * 2, $origValue[$j], $isBigEndian); 198655efc227SAndreas Gohr $j++; 198755efc227SAndreas Gohr } 198855efc227SAndreas Gohr 198955efc227SAndreas Gohr while ($j < $count) { 199055efc227SAndreas Gohr $this->_putShort($value, $j * 2, 0, $isBigEndian); 199155efc227SAndreas Gohr $j++; 199255efc227SAndreas Gohr } 199355efc227SAndreas Gohr break; 199455efc227SAndreas Gohr case 9: // SLONG 199555efc227SAndreas Gohr if ($count == 0) { 199655efc227SAndreas Gohr $count = $origCount; 199755efc227SAndreas Gohr } 199855efc227SAndreas Gohr 199955efc227SAndreas Gohr $j = 0; 200055efc227SAndreas Gohr while (($j < $count) && ($j < $origCount)) { 200155efc227SAndreas Gohr $this->_putLong($value, $j * 4, $origValue[$j], $isBigEndian); 200255efc227SAndreas Gohr $j++; 200355efc227SAndreas Gohr } 200455efc227SAndreas Gohr 200555efc227SAndreas Gohr while ($j < $count) { 200655efc227SAndreas Gohr $this->_putLong($value, $j * 4, 0, $isBigEndian); 200755efc227SAndreas Gohr $j++; 200855efc227SAndreas Gohr } 200955efc227SAndreas Gohr break; 201055efc227SAndreas Gohr case 10: // SRATIONAL 201155efc227SAndreas Gohr if ($count == 0) { 201255efc227SAndreas Gohr $count = $origCount; 201355efc227SAndreas Gohr } 201455efc227SAndreas Gohr 201555efc227SAndreas Gohr $j = 0; 201655efc227SAndreas Gohr while (($j < $count) && ($j < $origCount)) { 201755efc227SAndreas Gohr $v = $origValue[$j]; 201855efc227SAndreas Gohr if (is_array($v)) { 201955efc227SAndreas Gohr $a = $v['num']; 202055efc227SAndreas Gohr $b = $v['den']; 202155efc227SAndreas Gohr } 202255efc227SAndreas Gohr else { 202355efc227SAndreas Gohr $a = 0; 202455efc227SAndreas Gohr $b = 0; 202555efc227SAndreas Gohr // TODO: Allow other types and convert them 202655efc227SAndreas Gohr } 202755efc227SAndreas Gohr 202855efc227SAndreas Gohr $this->_putLong($value, $j * 8, $a, $isBigEndian); 202955efc227SAndreas Gohr $this->_putLong($value, ($j * 8) + 4, $b, $isBigEndian); 203055efc227SAndreas Gohr $j++; 203155efc227SAndreas Gohr } 203255efc227SAndreas Gohr 203355efc227SAndreas Gohr while ($j < $count) { 203455efc227SAndreas Gohr $this->_putLong($value, $j * 8, 0, $isBigEndian); 203555efc227SAndreas Gohr $this->_putLong($value, ($j * 8) + 4, 0, $isBigEndian); 203655efc227SAndreas Gohr $j++; 203755efc227SAndreas Gohr } 203855efc227SAndreas Gohr break; 203955efc227SAndreas Gohr case 11: // FLOAT 204055efc227SAndreas Gohr if ($count == 0) { 204155efc227SAndreas Gohr $count = $origCount; 204255efc227SAndreas Gohr } 204355efc227SAndreas Gohr 204455efc227SAndreas Gohr $j = 0; 204555efc227SAndreas Gohr while (($j < $count) && ($j < $origCount)) { 204655efc227SAndreas Gohr $v = strval($origValue[$j]); 204755efc227SAndreas Gohr if (strlen($v) > 4) { 204855efc227SAndreas Gohr $v = substr($v, 0, 4); 204955efc227SAndreas Gohr } 205055efc227SAndreas Gohr elseif (strlen($v) < 4) { 205155efc227SAndreas Gohr $v = str_pad($v, 4, "\0"); 205255efc227SAndreas Gohr } 205355efc227SAndreas Gohr $this->_putString($value, $j * 4, $v); 205455efc227SAndreas Gohr $j++; 205555efc227SAndreas Gohr } 205655efc227SAndreas Gohr 205755efc227SAndreas Gohr while ($j < $count) { 205855efc227SAndreas Gohr $this->_putString($value, $j * 4, "\0\0\0\0"); 205955efc227SAndreas Gohr $j++; 206055efc227SAndreas Gohr } 206155efc227SAndreas Gohr break; 206255efc227SAndreas Gohr case 12: // DFLOAT 206355efc227SAndreas Gohr if ($count == 0) { 206455efc227SAndreas Gohr $count = $origCount; 206555efc227SAndreas Gohr } 206655efc227SAndreas Gohr 206755efc227SAndreas Gohr $j = 0; 206855efc227SAndreas Gohr while (($j < $count) && ($j < $origCount)) { 206955efc227SAndreas Gohr $v = strval($origValue[$j]); 207055efc227SAndreas Gohr if (strlen($v) > 8) { 207155efc227SAndreas Gohr $v = substr($v, 0, 8); 207255efc227SAndreas Gohr } 207355efc227SAndreas Gohr elseif (strlen($v) < 8) { 207455efc227SAndreas Gohr $v = str_pad($v, 8, "\0"); 207555efc227SAndreas Gohr } 207655efc227SAndreas Gohr $this->_putString($value, $j * 8, $v); 207755efc227SAndreas Gohr $j++; 207855efc227SAndreas Gohr } 207955efc227SAndreas Gohr 208055efc227SAndreas Gohr while ($j < $count) { 208155efc227SAndreas Gohr $this->_putString($value, $j * 8, "\0\0\0\0\0\0\0\0"); 208255efc227SAndreas Gohr $j++; 208355efc227SAndreas Gohr } 208455efc227SAndreas Gohr break; 208555efc227SAndreas Gohr default: 208655efc227SAndreas Gohr $value = null; 208755efc227SAndreas Gohr break; 208855efc227SAndreas Gohr } 208955efc227SAndreas Gohr } 209055efc227SAndreas Gohr 209155efc227SAndreas Gohr if ($value != null) { 209255efc227SAndreas Gohr $ifdEntries[$entryCount] = array(); 209355efc227SAndreas Gohr $ifdEntries[$entryCount]['tag'] = $tag; 209455efc227SAndreas Gohr $ifdEntries[$entryCount]['type'] = $type; 209555efc227SAndreas Gohr $ifdEntries[$entryCount]['count'] = $count; 209655efc227SAndreas Gohr $ifdEntries[$entryCount]['value'] = $value; 209755efc227SAndreas Gohr 209855efc227SAndreas Gohr $entryCount++; 209955efc227SAndreas Gohr } 210055efc227SAndreas Gohr } 210155efc227SAndreas Gohr 210255efc227SAndreas Gohr return $ifdEntries; 210355efc227SAndreas Gohr } 210455efc227SAndreas Gohr 210555efc227SAndreas Gohr /*************************************************************/ 210655efc227SAndreas Gohr function _parseMarkerAdobe() 210755efc227SAndreas Gohr { 210855efc227SAndreas Gohr if (!isset($this->_markers)) { 210955efc227SAndreas Gohr $this->_readJPEG(); 211055efc227SAndreas Gohr } 211155efc227SAndreas Gohr 211255efc227SAndreas Gohr if ($this->_markers == null) { 211355efc227SAndreas Gohr return false; 211455efc227SAndreas Gohr } 211555efc227SAndreas Gohr 211655efc227SAndreas Gohr $data = null; 211755efc227SAndreas Gohr $count = count($this->_markers); 211855efc227SAndreas Gohr for ($i = 0; $i < $count; $i++) { 211955efc227SAndreas Gohr if ($this->_markers[$i]['marker'] == 0xED) { 212055efc227SAndreas Gohr $signature = $this->_getFixedString($this->_markers[$i]['data'], 0, 14); 212155efc227SAndreas Gohr if ($signature == "Photoshop 3.0\0") { 212255efc227SAndreas Gohr $data =& $this->_markers[$i]['data']; 212355efc227SAndreas Gohr break; 212455efc227SAndreas Gohr } 212555efc227SAndreas Gohr } 212655efc227SAndreas Gohr } 212755efc227SAndreas Gohr 212855efc227SAndreas Gohr if ($data == null) { 212955efc227SAndreas Gohr $this->_info['adobe'] = false; 213055efc227SAndreas Gohr $this->_info['iptc'] = false; 213155efc227SAndreas Gohr return false; 213255efc227SAndreas Gohr } 213355efc227SAndreas Gohr $pos = 14; 213455efc227SAndreas Gohr $this->_info['adobe'] = array(); 213555efc227SAndreas Gohr $this->_info['adobe']['raw'] = array(); 213655efc227SAndreas Gohr $this->_info['iptc'] = array(); 213755efc227SAndreas Gohr 213855efc227SAndreas Gohr $datasize = strlen($data); 213955efc227SAndreas Gohr 214055efc227SAndreas Gohr while ($pos < $datasize) { 214155efc227SAndreas Gohr $signature = $this->_getFixedString($data, $pos, 4); 214255efc227SAndreas Gohr if ($signature != '8BIM') 214355efc227SAndreas Gohr return false; 214455efc227SAndreas Gohr $pos += 4; 214555efc227SAndreas Gohr 214655efc227SAndreas Gohr $type = $this->_getShort($data, $pos); 214755efc227SAndreas Gohr $pos += 2; 214855efc227SAndreas Gohr 214955efc227SAndreas Gohr $strlen = $this->_getByte($data, $pos); 215055efc227SAndreas Gohr $pos += 1; 215155efc227SAndreas Gohr $header = ''; 215255efc227SAndreas Gohr for ($i = 0; $i < $strlen; $i++) { 215355efc227SAndreas Gohr $header .= $data{$pos + $i}; 215455efc227SAndreas Gohr } 215555efc227SAndreas Gohr $pos += $strlen + 1 - ($strlen % 2); // The string is padded to even length, counting the length byte itself 215655efc227SAndreas Gohr 215755efc227SAndreas Gohr $length = $this->_getLong($data, $pos); 215855efc227SAndreas Gohr $pos += 4; 215955efc227SAndreas Gohr 216055efc227SAndreas Gohr $basePos = $pos; 216155efc227SAndreas Gohr 216255efc227SAndreas Gohr switch ($type) { 216355efc227SAndreas Gohr case 0x0404: // Caption (IPTC Data) 216455efc227SAndreas Gohr $pos = $this->_readIPTC($data, $pos); 216555efc227SAndreas Gohr if ($pos == false) 216655efc227SAndreas Gohr return false; 216755efc227SAndreas Gohr break; 216855efc227SAndreas Gohr case 0x040A: // CopyrightFlag 216955efc227SAndreas Gohr $this->_info['adobe']['CopyrightFlag'] = $this->_getByte($data, $pos); 217055efc227SAndreas Gohr $pos += $length; 217155efc227SAndreas Gohr break; 217255efc227SAndreas Gohr case 0x040B: // ImageURL 217355efc227SAndreas Gohr $this->_info['adobe']['ImageURL'] = $this->_getFixedString($data, $pos, $length); 217455efc227SAndreas Gohr $pos += $length; 217555efc227SAndreas Gohr break; 217655efc227SAndreas Gohr case 0x040C: // Thumbnail 217755efc227SAndreas Gohr $aux = $this->_getLong($data, $pos); 217855efc227SAndreas Gohr $pos += 4; 217955efc227SAndreas Gohr if ($aux == 1) { 218055efc227SAndreas Gohr $this->_info['adobe']['ThumbnailWidth'] = $this->_getLong($data, $pos); 218155efc227SAndreas Gohr $pos += 4; 218255efc227SAndreas Gohr $this->_info['adobe']['ThumbnailHeight'] = $this->_getLong($data, $pos); 218355efc227SAndreas Gohr $pos += 4; 218455efc227SAndreas Gohr 218555efc227SAndreas Gohr $pos += 16; // Skip some data 218655efc227SAndreas Gohr 218755efc227SAndreas Gohr $this->_info['adobe']['ThumbnailData'] = $this->_getFixedString($data, $pos, $length - 28); 218855efc227SAndreas Gohr $pos += $length - 28; 218955efc227SAndreas Gohr } 219055efc227SAndreas Gohr break; 219155efc227SAndreas Gohr default: 219255efc227SAndreas Gohr break; 219355efc227SAndreas Gohr } 219455efc227SAndreas Gohr 219555efc227SAndreas Gohr // We save all blocks, even those we recognized 219655efc227SAndreas Gohr $label = sprintf('8BIM_0x%04x', $type); 219755efc227SAndreas Gohr $this->_info['adobe']['raw'][$label] = array(); 219855efc227SAndreas Gohr $this->_info['adobe']['raw'][$label]['type'] = $type; 219955efc227SAndreas Gohr $this->_info['adobe']['raw'][$label]['header'] = $header; 220055efc227SAndreas Gohr $this->_info['adobe']['raw'][$label]['data'] =& $this->_getFixedString($data, $basePos, $length); 220155efc227SAndreas Gohr 220255efc227SAndreas Gohr $pos = $basePos + $length + ($length % 2); // Even padding 220355efc227SAndreas Gohr } 220455efc227SAndreas Gohr 220555efc227SAndreas Gohr } 220655efc227SAndreas Gohr 220755efc227SAndreas Gohr /*************************************************************/ 220855efc227SAndreas Gohr function _readIPTC(&$data, $pos = 0) 220955efc227SAndreas Gohr { 221055efc227SAndreas Gohr $totalLength = strlen($data); 221155efc227SAndreas Gohr 221255efc227SAndreas Gohr $IPTCTags =& $this->_iptcTagNames(); 221355efc227SAndreas Gohr 221455efc227SAndreas Gohr while ($pos < ($totalLength - 5)) { 221555efc227SAndreas Gohr $signature = $this->_getShort($data, $pos); 221655efc227SAndreas Gohr if ($signature != 0x1C02) 221755efc227SAndreas Gohr return $pos; 221855efc227SAndreas Gohr $pos += 2; 221955efc227SAndreas Gohr 222055efc227SAndreas Gohr $type = $this->_getByte($data, $pos); 222155efc227SAndreas Gohr $pos += 1; 222255efc227SAndreas Gohr $length = $this->_getShort($data, $pos); 222355efc227SAndreas Gohr $pos += 2; 222455efc227SAndreas Gohr 222555efc227SAndreas Gohr $basePos = $pos; 222655efc227SAndreas Gohr $label = ''; 222755efc227SAndreas Gohr 222855efc227SAndreas Gohr if (isset($IPTCTags[$type])) { 222955efc227SAndreas Gohr $label = $IPTCTags[$type]; 223055efc227SAndreas Gohr } 223155efc227SAndreas Gohr else { 223255efc227SAndreas Gohr $label = sprintf('IPTC_0x%02x', $type); 223355efc227SAndreas Gohr } 223455efc227SAndreas Gohr 223555efc227SAndreas Gohr if ($label != '') { 223655efc227SAndreas Gohr if (isset($this->_info['iptc'][$label])) { 223755efc227SAndreas Gohr if (!is_array($this->_info['iptc'][$label])) { 223855efc227SAndreas Gohr $aux = array(); 223955efc227SAndreas Gohr $aux[0] = $this->_info['iptc'][$label]; 224055efc227SAndreas Gohr $this->_info['iptc'][$label] = $aux; 224155efc227SAndreas Gohr } 224255efc227SAndreas Gohr $this->_info['iptc'][$label][ count($this->_info['iptc'][$label]) ] = $this->_getFixedString($data, $pos, $length); 224355efc227SAndreas Gohr } 224455efc227SAndreas Gohr else { 224555efc227SAndreas Gohr $this->_info['iptc'][$label] = $this->_getFixedString($data, $pos, $length); 224655efc227SAndreas Gohr } 224755efc227SAndreas Gohr } 224855efc227SAndreas Gohr 224955efc227SAndreas Gohr $pos = $basePos + $length; // No padding 225055efc227SAndreas Gohr } 225155efc227SAndreas Gohr return $pos; 225255efc227SAndreas Gohr } 225355efc227SAndreas Gohr 225455efc227SAndreas Gohr /*************************************************************/ 225555efc227SAndreas Gohr function & _createMarkerAdobe() 225655efc227SAndreas Gohr { 225755efc227SAndreas Gohr if (isset($this->_info['iptc'])) { 225855efc227SAndreas Gohr if (!isset($this->_info['adobe'])) { 225955efc227SAndreas Gohr $this->_info['adobe'] = array(); 226055efc227SAndreas Gohr } 226155efc227SAndreas Gohr if (!isset($this->_info['adobe']['raw'])) { 226255efc227SAndreas Gohr $this->_info['adobe']['raw'] = array(); 226355efc227SAndreas Gohr } 226455efc227SAndreas Gohr if (!isset($this->_info['adobe']['raw']['8BIM_0x0404'])) { 226555efc227SAndreas Gohr $this->_info['adobe']['raw']['8BIM_0x0404'] = array(); 226655efc227SAndreas Gohr } 226755efc227SAndreas Gohr $this->_info['adobe']['raw']['8BIM_0x0404']['type'] = 0x0404; 226855efc227SAndreas Gohr $this->_info['adobe']['raw']['8BIM_0x0404']['header'] = "Caption"; 226955efc227SAndreas Gohr $this->_info['adobe']['raw']['8BIM_0x0404']['data'] =& $this->_writeIPTC(); 227055efc227SAndreas Gohr } 227155efc227SAndreas Gohr 227255efc227SAndreas Gohr if (isset($this->_info['adobe']['raw']) && (count($this->_info['adobe']['raw']) > 0)) { 227355efc227SAndreas Gohr $data = "Photoshop 3.0\0"; 227455efc227SAndreas Gohr $pos = 14; 227555efc227SAndreas Gohr 227655efc227SAndreas Gohr reset($this->_info['adobe']['raw']); 227755efc227SAndreas Gohr while (list($key) = each($this->_info['adobe']['raw'])) { 227855efc227SAndreas Gohr $pos = $this->_write8BIM( 227955efc227SAndreas Gohr $data, 228055efc227SAndreas Gohr $pos, 228155efc227SAndreas Gohr $this->_info['adobe']['raw'][$key]['type'], 228255efc227SAndreas Gohr $this->_info['adobe']['raw'][$key]['header'], 228355efc227SAndreas Gohr $this->_info['adobe']['raw'][$key]['data'] ); 228455efc227SAndreas Gohr } 228555efc227SAndreas Gohr } 228655efc227SAndreas Gohr 228755efc227SAndreas Gohr return $data; 228855efc227SAndreas Gohr } 228955efc227SAndreas Gohr 229055efc227SAndreas Gohr /*************************************************************/ 229155efc227SAndreas Gohr function _write8BIM(&$data, $pos, $type, $header, &$value) 229255efc227SAndreas Gohr { 229355efc227SAndreas Gohr $signature = "8BIM"; 229455efc227SAndreas Gohr 229555efc227SAndreas Gohr $pos = $this->_putString($data, $pos, $signature); 229655efc227SAndreas Gohr $pos = $this->_putShort($data, $pos, $type); 229755efc227SAndreas Gohr 229855efc227SAndreas Gohr $len = strlen($header); 229955efc227SAndreas Gohr 230055efc227SAndreas Gohr $pos = $this->_putByte($data, $pos, $len); 230155efc227SAndreas Gohr $pos = $this->_putString($data, $pos, $header); 230255efc227SAndreas Gohr if (($len % 2) == 0) { // Even padding, including the length byte 230355efc227SAndreas Gohr $pos = $this->_putByte($data, $pos, 0); 230455efc227SAndreas Gohr } 230555efc227SAndreas Gohr 230655efc227SAndreas Gohr $len = strlen($value); 230755efc227SAndreas Gohr $pos = $this->_putLong($data, $pos, $len); 230855efc227SAndreas Gohr $pos = $this->_putString($data, $pos, $value); 230955efc227SAndreas Gohr if (($len % 2) != 0) { // Even padding 231055efc227SAndreas Gohr $pos = $this->_putByte($data, $pos, 0); 231155efc227SAndreas Gohr } 231255efc227SAndreas Gohr return $pos; 231355efc227SAndreas Gohr } 231455efc227SAndreas Gohr 231555efc227SAndreas Gohr /*************************************************************/ 231655efc227SAndreas Gohr function & _writeIPTC() 231755efc227SAndreas Gohr { 231855efc227SAndreas Gohr $data = " "; 231955efc227SAndreas Gohr $pos = 0; 232055efc227SAndreas Gohr 232155efc227SAndreas Gohr $IPTCNames =& $this->_iptcNameTags(); 232255efc227SAndreas Gohr 232355efc227SAndreas Gohr reset($this->_info['iptc']); 232455efc227SAndreas Gohr 232555efc227SAndreas Gohr 232655efc227SAndreas Gohr while (list($label) = each($this->_info['iptc'])) { 232755efc227SAndreas Gohr $value =& $this->_info['iptc'][$label]; 232855efc227SAndreas Gohr $type = -1; 232955efc227SAndreas Gohr 233055efc227SAndreas Gohr if (isset($IPTCNames[$label])) { 233155efc227SAndreas Gohr $type = $IPTCNames[$label]; 233255efc227SAndreas Gohr } 233355efc227SAndreas Gohr elseif (substr($label, 0, 7) == "IPTC_0x") { 233455efc227SAndreas Gohr $type = hexdec(substr($label, 7, 2)); 233555efc227SAndreas Gohr } 233655efc227SAndreas Gohr 233755efc227SAndreas Gohr if ($type != -1) { 233855efc227SAndreas Gohr if (is_array($value)) { 233955efc227SAndreas Gohr for ($i = 0; $i < count($value); $i++) { 234055efc227SAndreas Gohr $pos = $this->_writeIPTCEntry($data, $pos, $type, $value[$i]); 234155efc227SAndreas Gohr } 234255efc227SAndreas Gohr } 234355efc227SAndreas Gohr else { 234455efc227SAndreas Gohr $pos = $this->_writeIPTCEntry($data, $pos, $type, $value); 234555efc227SAndreas Gohr } 234655efc227SAndreas Gohr } 234755efc227SAndreas Gohr } 234855efc227SAndreas Gohr 234955efc227SAndreas Gohr return $data; 235055efc227SAndreas Gohr } 235155efc227SAndreas Gohr 235255efc227SAndreas Gohr /*************************************************************/ 235355efc227SAndreas Gohr function _writeIPTCEntry(&$data, $pos, $type, &$value) 235455efc227SAndreas Gohr { 235555efc227SAndreas Gohr $pos = $this->_putShort($data, $pos, 0x1C02); 235655efc227SAndreas Gohr $pos = $this->_putByte($data, $pos, $type); 235755efc227SAndreas Gohr $pos = $this->_putShort($data, $pos, strlen($value)); 235855efc227SAndreas Gohr $pos = $this->_putString($data, $pos, $value); 235955efc227SAndreas Gohr 236055efc227SAndreas Gohr return $pos; 236155efc227SAndreas Gohr } 236255efc227SAndreas Gohr 236355efc227SAndreas Gohr /*************************************************************/ 236455efc227SAndreas Gohr function _exifTagNames($mode) 236555efc227SAndreas Gohr { 236655efc227SAndreas Gohr $tags = array(); 236755efc227SAndreas Gohr 236855efc227SAndreas Gohr if ($mode == 'ifd0') { 236955efc227SAndreas Gohr $tags[0x010E] = 'ImageDescription'; 237055efc227SAndreas Gohr $tags[0x010F] = 'Make'; 237155efc227SAndreas Gohr $tags[0x0110] = 'Model'; 237255efc227SAndreas Gohr $tags[0x0112] = 'Orientation'; 237355efc227SAndreas Gohr $tags[0x011A] = 'XResolution'; 237455efc227SAndreas Gohr $tags[0x011B] = 'YResolution'; 237555efc227SAndreas Gohr $tags[0x0128] = 'ResolutionUnit'; 237655efc227SAndreas Gohr $tags[0x0131] = 'Software'; 237755efc227SAndreas Gohr $tags[0x0132] = 'DateTime'; 237855efc227SAndreas Gohr $tags[0x013B] = 'Artist'; 237955efc227SAndreas Gohr $tags[0x013E] = 'WhitePoint'; 238055efc227SAndreas Gohr $tags[0x013F] = 'PrimaryChromaticities'; 238155efc227SAndreas Gohr $tags[0x0211] = 'YCbCrCoefficients'; 238255efc227SAndreas Gohr $tags[0x0212] = 'YCbCrSubSampling'; 238355efc227SAndreas Gohr $tags[0x0213] = 'YCbCrPositioning'; 238455efc227SAndreas Gohr $tags[0x0214] = 'ReferenceBlackWhite'; 238555efc227SAndreas Gohr $tags[0x8298] = 'Copyright'; 238655efc227SAndreas Gohr $tags[0x8769] = 'ExifIFDOffset'; 238755efc227SAndreas Gohr $tags[0x8825] = 'GPSIFDOffset'; 238855efc227SAndreas Gohr } 238955efc227SAndreas Gohr if ($mode == 'ifd1') { 239055efc227SAndreas Gohr $tags[0x00FE] = 'TIFFNewSubfileType'; 239155efc227SAndreas Gohr $tags[0x00FF] = 'TIFFSubfileType'; 239255efc227SAndreas Gohr $tags[0x0100] = 'TIFFImageWidth'; 239355efc227SAndreas Gohr $tags[0x0101] = 'TIFFImageHeight'; 239455efc227SAndreas Gohr $tags[0x0102] = 'TIFFBitsPerSample'; 239555efc227SAndreas Gohr $tags[0x0103] = 'TIFFCompression'; 239655efc227SAndreas Gohr $tags[0x0106] = 'TIFFPhotometricInterpretation'; 239755efc227SAndreas Gohr $tags[0x0107] = 'TIFFThreshholding'; 239855efc227SAndreas Gohr $tags[0x0108] = 'TIFFCellWidth'; 239955efc227SAndreas Gohr $tags[0x0109] = 'TIFFCellLength'; 240055efc227SAndreas Gohr $tags[0x010A] = 'TIFFFillOrder'; 240155efc227SAndreas Gohr $tags[0x010E] = 'TIFFImageDescription'; 240255efc227SAndreas Gohr $tags[0x010F] = 'TIFFMake'; 240355efc227SAndreas Gohr $tags[0x0110] = 'TIFFModel'; 240455efc227SAndreas Gohr $tags[0x0111] = 'TIFFStripOffsets'; 240555efc227SAndreas Gohr $tags[0x0112] = 'TIFFOrientation'; 240655efc227SAndreas Gohr $tags[0x0115] = 'TIFFSamplesPerPixel'; 240755efc227SAndreas Gohr $tags[0x0116] = 'TIFFRowsPerStrip'; 240855efc227SAndreas Gohr $tags[0x0117] = 'TIFFStripByteCounts'; 240955efc227SAndreas Gohr $tags[0x0118] = 'TIFFMinSampleValue'; 241055efc227SAndreas Gohr $tags[0x0119] = 'TIFFMaxSampleValue'; 241155efc227SAndreas Gohr $tags[0x011A] = 'TIFFXResolution'; 241255efc227SAndreas Gohr $tags[0x011B] = 'TIFFYResolution'; 241355efc227SAndreas Gohr $tags[0x011C] = 'TIFFPlanarConfiguration'; 241455efc227SAndreas Gohr $tags[0x0122] = 'TIFFGrayResponseUnit'; 241555efc227SAndreas Gohr $tags[0x0123] = 'TIFFGrayResponseCurve'; 241655efc227SAndreas Gohr $tags[0x0128] = 'TIFFResolutionUnit'; 241755efc227SAndreas Gohr $tags[0x0131] = 'TIFFSoftware'; 241855efc227SAndreas Gohr $tags[0x0132] = 'TIFFDateTime'; 241955efc227SAndreas Gohr $tags[0x013B] = 'TIFFArtist'; 242055efc227SAndreas Gohr $tags[0x013C] = 'TIFFHostComputer'; 242155efc227SAndreas Gohr $tags[0x0140] = 'TIFFColorMap'; 242255efc227SAndreas Gohr $tags[0x0152] = 'TIFFExtraSamples'; 242355efc227SAndreas Gohr $tags[0x0201] = 'TIFFJFIFOffset'; 242455efc227SAndreas Gohr $tags[0x0202] = 'TIFFJFIFLength'; 242555efc227SAndreas Gohr $tags[0x0211] = 'TIFFYCbCrCoefficients'; 242655efc227SAndreas Gohr $tags[0x0212] = 'TIFFYCbCrSubSampling'; 242755efc227SAndreas Gohr $tags[0x0213] = 'TIFFYCbCrPositioning'; 242855efc227SAndreas Gohr $tags[0x0214] = 'TIFFReferenceBlackWhite'; 242955efc227SAndreas Gohr $tags[0x8298] = 'TIFFCopyright'; 243055efc227SAndreas Gohr $tags[0x9286] = 'TIFFUserComment'; 243155efc227SAndreas Gohr } 243255efc227SAndreas Gohr elseif ($mode == 'exif') { 243355efc227SAndreas Gohr $tags[0x829A] = 'ExposureTime'; 243455efc227SAndreas Gohr $tags[0x829D] = 'FNumber'; 243555efc227SAndreas Gohr $tags[0x8822] = 'ExposureProgram'; 243655efc227SAndreas Gohr $tags[0x8824] = 'SpectralSensitivity'; 243755efc227SAndreas Gohr $tags[0x8827] = 'ISOSpeedRatings'; 243855efc227SAndreas Gohr $tags[0x8828] = 'OECF'; 243955efc227SAndreas Gohr $tags[0x9000] = 'EXIFVersion'; 244055efc227SAndreas Gohr $tags[0x9003] = 'DatetimeOriginal'; 244155efc227SAndreas Gohr $tags[0x9004] = 'DatetimeDigitized'; 244255efc227SAndreas Gohr $tags[0x9101] = 'ComponentsConfiguration'; 244355efc227SAndreas Gohr $tags[0x9102] = 'CompressedBitsPerPixel'; 244455efc227SAndreas Gohr $tags[0x9201] = 'ShutterSpeedValue'; 244555efc227SAndreas Gohr $tags[0x9202] = 'ApertureValue'; 244655efc227SAndreas Gohr $tags[0x9203] = 'BrightnessValue'; 244755efc227SAndreas Gohr $tags[0x9204] = 'ExposureBiasValue'; 244855efc227SAndreas Gohr $tags[0x9205] = 'MaxApertureValue'; 244955efc227SAndreas Gohr $tags[0x9206] = 'SubjectDistance'; 245055efc227SAndreas Gohr $tags[0x9207] = 'MeteringMode'; 245155efc227SAndreas Gohr $tags[0x9208] = 'LightSource'; 245255efc227SAndreas Gohr $tags[0x9209] = 'Flash'; 245355efc227SAndreas Gohr $tags[0x920A] = 'FocalLength'; 245455efc227SAndreas Gohr $tags[0x927C] = 'MakerNote'; 245555efc227SAndreas Gohr $tags[0x9286] = 'UserComment'; 245655efc227SAndreas Gohr $tags[0x9290] = 'SubSecTime'; 245755efc227SAndreas Gohr $tags[0x9291] = 'SubSecTimeOriginal'; 245855efc227SAndreas Gohr $tags[0x9292] = 'SubSecTimeDigitized'; 245955efc227SAndreas Gohr $tags[0xA000] = 'FlashPixVersion'; 246055efc227SAndreas Gohr $tags[0xA001] = 'ColorSpace'; 246155efc227SAndreas Gohr $tags[0xA002] = 'PixelXDimension'; 246255efc227SAndreas Gohr $tags[0xA003] = 'PixelYDimension'; 246355efc227SAndreas Gohr $tags[0xA004] = 'RelatedSoundFile'; 246455efc227SAndreas Gohr $tags[0xA005] = 'InteropIFDOffset'; 246555efc227SAndreas Gohr $tags[0xA20B] = 'FlashEnergy'; 246655efc227SAndreas Gohr $tags[0xA20C] = 'SpatialFrequencyResponse'; 246755efc227SAndreas Gohr $tags[0xA20E] = 'FocalPlaneXResolution'; 246855efc227SAndreas Gohr $tags[0xA20F] = 'FocalPlaneYResolution'; 246955efc227SAndreas Gohr $tags[0xA210] = 'FocalPlaneResolutionUnit'; 247055efc227SAndreas Gohr $tags[0xA214] = 'SubjectLocation'; 247155efc227SAndreas Gohr $tags[0xA215] = 'ExposureIndex'; 247255efc227SAndreas Gohr $tags[0xA217] = 'SensingMethod'; 247355efc227SAndreas Gohr $tags[0xA300] = 'FileSource'; 247455efc227SAndreas Gohr $tags[0xA301] = 'SceneType'; 247555efc227SAndreas Gohr $tags[0xA302] = 'CFAPattern'; 247655efc227SAndreas Gohr } 247755efc227SAndreas Gohr elseif ($mode == 'interop') { 247855efc227SAndreas Gohr $tags[0x0001] = 'InteroperabilityIndex'; 247955efc227SAndreas Gohr $tags[0x0002] = 'InteroperabilityVersion'; 248055efc227SAndreas Gohr $tags[0x1000] = 'RelatedImageFileFormat'; 248155efc227SAndreas Gohr $tags[0x1001] = 'RelatedImageWidth'; 248255efc227SAndreas Gohr $tags[0x1002] = 'RelatedImageLength'; 248355efc227SAndreas Gohr } 248455efc227SAndreas Gohr elseif ($mode == 'gps') { 248555efc227SAndreas Gohr $tags[0x0000] = 'GPSVersionID'; 248655efc227SAndreas Gohr $tags[0x0001] = 'GPSLatitudeRef'; 248755efc227SAndreas Gohr $tags[0x0002] = 'GPSLatitude'; 248855efc227SAndreas Gohr $tags[0x0003] = 'GPSLongitudeRef'; 248955efc227SAndreas Gohr $tags[0x0004] = 'GPSLongitude'; 249055efc227SAndreas Gohr $tags[0x0005] = 'GPSAltitudeRef'; 249155efc227SAndreas Gohr $tags[0x0006] = 'GPSAltitude'; 249255efc227SAndreas Gohr $tags[0x0007] = 'GPSTimeStamp'; 249355efc227SAndreas Gohr $tags[0x0008] = 'GPSSatellites'; 249455efc227SAndreas Gohr $tags[0x0009] = 'GPSStatus'; 249555efc227SAndreas Gohr $tags[0x000A] = 'GPSMeasureMode'; 249655efc227SAndreas Gohr $tags[0x000B] = 'GPSDOP'; 249755efc227SAndreas Gohr $tags[0x000C] = 'GPSSpeedRef'; 249855efc227SAndreas Gohr $tags[0x000D] = 'GPSSpeed'; 249955efc227SAndreas Gohr $tags[0x000E] = 'GPSTrackRef'; 250055efc227SAndreas Gohr $tags[0x000F] = 'GPSTrack'; 250155efc227SAndreas Gohr $tags[0x0010] = 'GPSImgDirectionRef'; 250255efc227SAndreas Gohr $tags[0x0011] = 'GPSImgDirection'; 250355efc227SAndreas Gohr $tags[0x0012] = 'GPSMapDatum'; 250455efc227SAndreas Gohr $tags[0x0013] = 'GPSDestLatitudeRef'; 250555efc227SAndreas Gohr $tags[0x0014] = 'GPSDestLatitude'; 250655efc227SAndreas Gohr $tags[0x0015] = 'GPSDestLongitudeRef'; 250755efc227SAndreas Gohr $tags[0x0016] = 'GPSDestLongitude'; 250855efc227SAndreas Gohr $tags[0x0017] = 'GPSDestBearingRef'; 250955efc227SAndreas Gohr $tags[0x0018] = 'GPSDestBearing'; 251055efc227SAndreas Gohr $tags[0x0019] = 'GPSDestDistanceRef'; 251155efc227SAndreas Gohr $tags[0x001A] = 'GPSDestDistance'; 251255efc227SAndreas Gohr } 251355efc227SAndreas Gohr 251455efc227SAndreas Gohr return $tags; 251555efc227SAndreas Gohr } 251655efc227SAndreas Gohr 251755efc227SAndreas Gohr /*************************************************************/ 251855efc227SAndreas Gohr function _exifTagTypes($mode) 251955efc227SAndreas Gohr { 252055efc227SAndreas Gohr $tags = array(); 252155efc227SAndreas Gohr 252255efc227SAndreas Gohr if ($mode == 'ifd0') { 252355efc227SAndreas Gohr $tags[0x010E] = array(2, 0); // ImageDescription -> ASCII, Any 252455efc227SAndreas Gohr $tags[0x010F] = array(2, 0); // Make -> ASCII, Any 252555efc227SAndreas Gohr $tags[0x0110] = array(2, 0); // Model -> ASCII, Any 252655efc227SAndreas Gohr $tags[0x0112] = array(3, 1); // Orientation -> SHORT, 1 252755efc227SAndreas Gohr $tags[0x011A] = array(5, 1); // XResolution -> RATIONAL, 1 252855efc227SAndreas Gohr $tags[0x011B] = array(5, 1); // YResolution -> RATIONAL, 1 252955efc227SAndreas Gohr $tags[0x0128] = array(3, 1); // ResolutionUnit -> SHORT 253055efc227SAndreas Gohr $tags[0x0131] = array(2, 0); // Software -> ASCII, Any 253155efc227SAndreas Gohr $tags[0x0132] = array(2, 20); // DateTime -> ASCII, 20 253255efc227SAndreas Gohr $tags[0x013B] = array(2, 0); // Artist -> ASCII, Any 253355efc227SAndreas Gohr $tags[0x013E] = array(5, 2); // WhitePoint -> RATIONAL, 2 253455efc227SAndreas Gohr $tags[0x013F] = array(5, 6); // PrimaryChromaticities -> RATIONAL, 6 253555efc227SAndreas Gohr $tags[0x0211] = array(5, 3); // YCbCrCoefficients -> RATIONAL, 3 253655efc227SAndreas Gohr $tags[0x0212] = array(3, 2); // YCbCrSubSampling -> SHORT, 2 253755efc227SAndreas Gohr $tags[0x0213] = array(3, 1); // YCbCrPositioning -> SHORT, 1 253855efc227SAndreas Gohr $tags[0x0214] = array(5, 6); // ReferenceBlackWhite -> RATIONAL, 6 253955efc227SAndreas Gohr $tags[0x8298] = array(2, 0); // Copyright -> ASCII, Any 254055efc227SAndreas Gohr $tags[0x8769] = array(4, 1); // ExifIFDOffset -> LONG, 1 254155efc227SAndreas Gohr $tags[0x8825] = array(4, 1); // GPSIFDOffset -> LONG, 1 254255efc227SAndreas Gohr } 254355efc227SAndreas Gohr if ($mode == 'ifd1') { 254455efc227SAndreas Gohr $tags[0x00FE] = array(4, 1); // TIFFNewSubfileType -> LONG, 1 254555efc227SAndreas Gohr $tags[0x00FF] = array(3, 1); // TIFFSubfileType -> SHORT, 1 254655efc227SAndreas Gohr $tags[0x0100] = array(4, 1); // TIFFImageWidth -> LONG (or SHORT), 1 254755efc227SAndreas Gohr $tags[0x0101] = array(4, 1); // TIFFImageHeight -> LONG (or SHORT), 1 254855efc227SAndreas Gohr $tags[0x0102] = array(3, 3); // TIFFBitsPerSample -> SHORT, 3 254955efc227SAndreas Gohr $tags[0x0103] = array(3, 1); // TIFFCompression -> SHORT, 1 255055efc227SAndreas Gohr $tags[0x0106] = array(3, 1); // TIFFPhotometricInterpretation -> SHORT, 1 255155efc227SAndreas Gohr $tags[0x0107] = array(3, 1); // TIFFThreshholding -> SHORT, 1 255255efc227SAndreas Gohr $tags[0x0108] = array(3, 1); // TIFFCellWidth -> SHORT, 1 255355efc227SAndreas Gohr $tags[0x0109] = array(3, 1); // TIFFCellLength -> SHORT, 1 255455efc227SAndreas Gohr $tags[0x010A] = array(3, 1); // TIFFFillOrder -> SHORT, 1 255555efc227SAndreas Gohr $tags[0x010E] = array(2, 0); // TIFFImageDescription -> ASCII, Any 255655efc227SAndreas Gohr $tags[0x010F] = array(2, 0); // TIFFMake -> ASCII, Any 255755efc227SAndreas Gohr $tags[0x0110] = array(2, 0); // TIFFModel -> ASCII, Any 255855efc227SAndreas Gohr $tags[0x0111] = array(4, 0); // TIFFStripOffsets -> LONG (or SHORT), Any (one per strip) 255955efc227SAndreas Gohr $tags[0x0112] = array(3, 1); // TIFFOrientation -> SHORT, 1 256055efc227SAndreas Gohr $tags[0x0115] = array(3, 1); // TIFFSamplesPerPixel -> SHORT, 1 256155efc227SAndreas Gohr $tags[0x0116] = array(4, 1); // TIFFRowsPerStrip -> LONG (or SHORT), 1 256255efc227SAndreas Gohr $tags[0x0117] = array(4, 0); // TIFFStripByteCounts -> LONG (or SHORT), Any (one per strip) 256355efc227SAndreas Gohr $tags[0x0118] = array(3, 0); // TIFFMinSampleValue -> SHORT, Any (SamplesPerPixel) 256455efc227SAndreas Gohr $tags[0x0119] = array(3, 0); // TIFFMaxSampleValue -> SHORT, Any (SamplesPerPixel) 256555efc227SAndreas Gohr $tags[0x011A] = array(5, 1); // TIFFXResolution -> RATIONAL, 1 256655efc227SAndreas Gohr $tags[0x011B] = array(5, 1); // TIFFYResolution -> RATIONAL, 1 256755efc227SAndreas Gohr $tags[0x011C] = array(3, 1); // TIFFPlanarConfiguration -> SHORT, 1 256855efc227SAndreas Gohr $tags[0x0122] = array(3, 1); // TIFFGrayResponseUnit -> SHORT, 1 256955efc227SAndreas Gohr $tags[0x0123] = array(3, 0); // TIFFGrayResponseCurve -> SHORT, Any (2^BitsPerSample) 257055efc227SAndreas Gohr $tags[0x0128] = array(3, 1); // TIFFResolutionUnit -> SHORT, 1 257155efc227SAndreas Gohr $tags[0x0131] = array(2, 0); // TIFFSoftware -> ASCII, Any 257255efc227SAndreas Gohr $tags[0x0132] = array(2, 20); // TIFFDateTime -> ASCII, 20 257355efc227SAndreas Gohr $tags[0x013B] = array(2, 0); // TIFFArtist -> ASCII, Any 257455efc227SAndreas Gohr $tags[0x013C] = array(2, 0); // TIFFHostComputer -> ASCII, Any 257555efc227SAndreas Gohr $tags[0x0140] = array(3, 0); // TIFFColorMap -> SHORT, Any (3 * 2^BitsPerSample) 257655efc227SAndreas Gohr $tags[0x0152] = array(3, 0); // TIFFExtraSamples -> SHORT, Any (SamplesPerPixel - 3) 257755efc227SAndreas Gohr $tags[0x0201] = array(4, 1); // TIFFJFIFOffset -> LONG, 1 257855efc227SAndreas Gohr $tags[0x0202] = array(4, 1); // TIFFJFIFLength -> LONG, 1 257955efc227SAndreas Gohr $tags[0x0211] = array(5, 3); // TIFFYCbCrCoefficients -> RATIONAL, 3 258055efc227SAndreas Gohr $tags[0x0212] = array(3, 2); // TIFFYCbCrSubSampling -> SHORT, 2 258155efc227SAndreas Gohr $tags[0x0213] = array(3, 1); // TIFFYCbCrPositioning -> SHORT, 1 258255efc227SAndreas Gohr $tags[0x0214] = array(5, 6); // TIFFReferenceBlackWhite -> RATIONAL, 6 258355efc227SAndreas Gohr $tags[0x8298] = array(2, 0); // TIFFCopyright -> ASCII, Any 258455efc227SAndreas Gohr $tags[0x9286] = array(2, 0); // TIFFUserComment -> ASCII, Any 258555efc227SAndreas Gohr } 258655efc227SAndreas Gohr elseif ($mode == 'exif') { 258755efc227SAndreas Gohr $tags[0x829A] = array(5, 1); // ExposureTime -> RATIONAL, 1 258855efc227SAndreas Gohr $tags[0x829D] = array(5, 1); // FNumber -> RATIONAL, 1 258955efc227SAndreas Gohr $tags[0x8822] = array(3, 1); // ExposureProgram -> SHORT, 1 259055efc227SAndreas Gohr $tags[0x8824] = array(2, 0); // SpectralSensitivity -> ASCII, Any 259155efc227SAndreas Gohr $tags[0x8827] = array(3, 0); // ISOSpeedRatings -> SHORT, Any 259255efc227SAndreas Gohr $tags[0x8828] = array(7, 0); // OECF -> UNDEFINED, Any 259355efc227SAndreas Gohr $tags[0x9000] = array(7, 4); // EXIFVersion -> UNDEFINED, 4 259455efc227SAndreas Gohr $tags[0x9003] = array(2, 20); // DatetimeOriginal -> ASCII, 20 259555efc227SAndreas Gohr $tags[0x9004] = array(2, 20); // DatetimeDigitized -> ASCII, 20 259655efc227SAndreas Gohr $tags[0x9101] = array(7, 4); // ComponentsConfiguration -> UNDEFINED, 4 259755efc227SAndreas Gohr $tags[0x9102] = array(5, 1); // CompressedBitsPerPixel -> RATIONAL, 1 259855efc227SAndreas Gohr $tags[0x9201] = array(10, 1); // ShutterSpeedValue -> SRATIONAL, 1 259955efc227SAndreas Gohr $tags[0x9202] = array(5, 1); // ApertureValue -> RATIONAL, 1 260055efc227SAndreas Gohr $tags[0x9203] = array(10, 1); // BrightnessValue -> SRATIONAL, 1 260155efc227SAndreas Gohr $tags[0x9204] = array(10, 1); // ExposureBiasValue -> SRATIONAL, 1 260255efc227SAndreas Gohr $tags[0x9205] = array(5, 1); // MaxApertureValue -> RATIONAL, 1 260355efc227SAndreas Gohr $tags[0x9206] = array(5, 1); // SubjectDistance -> RATIONAL, 1 260455efc227SAndreas Gohr $tags[0x9207] = array(3, 1); // MeteringMode -> SHORT, 1 260555efc227SAndreas Gohr $tags[0x9208] = array(3, 1); // LightSource -> SHORT, 1 260655efc227SAndreas Gohr $tags[0x9209] = array(3, 1); // Flash -> SHORT, 1 260755efc227SAndreas Gohr $tags[0x920A] = array(5, 1); // FocalLength -> RATIONAL, 1 260855efc227SAndreas Gohr $tags[0x927C] = array(7, 0); // MakerNote -> UNDEFINED, Any 260955efc227SAndreas Gohr $tags[0x9286] = array(7, 0); // UserComment -> UNDEFINED, Any 261055efc227SAndreas Gohr $tags[0x9290] = array(2, 0); // SubSecTime -> ASCII, Any 261155efc227SAndreas Gohr $tags[0x9291] = array(2, 0); // SubSecTimeOriginal -> ASCII, Any 261255efc227SAndreas Gohr $tags[0x9292] = array(2, 0); // SubSecTimeDigitized -> ASCII, Any 261355efc227SAndreas Gohr $tags[0xA000] = array(7, 4); // FlashPixVersion -> UNDEFINED, 4 261455efc227SAndreas Gohr $tags[0xA001] = array(3, 1); // ColorSpace -> SHORT, 1 261555efc227SAndreas Gohr $tags[0xA002] = array(4, 1); // PixelXDimension -> LONG (or SHORT), 1 261655efc227SAndreas Gohr $tags[0xA003] = array(4, 1); // PixelYDimension -> LONG (or SHORT), 1 261755efc227SAndreas Gohr $tags[0xA004] = array(2, 13); // RelatedSoundFile -> ASCII, 13 261855efc227SAndreas Gohr $tags[0xA005] = array(4, 1); // InteropIFDOffset -> LONG, 1 261955efc227SAndreas Gohr $tags[0xA20B] = array(5, 1); // FlashEnergy -> RATIONAL, 1 262055efc227SAndreas Gohr $tags[0xA20C] = array(7, 0); // SpatialFrequencyResponse -> UNDEFINED, Any 262155efc227SAndreas Gohr $tags[0xA20E] = array(5, 1); // FocalPlaneXResolution -> RATIONAL, 1 262255efc227SAndreas Gohr $tags[0xA20F] = array(5, 1); // FocalPlaneYResolution -> RATIONAL, 1 262355efc227SAndreas Gohr $tags[0xA210] = array(3, 1); // FocalPlaneResolutionUnit -> SHORT, 1 262455efc227SAndreas Gohr $tags[0xA214] = array(3, 2); // SubjectLocation -> SHORT, 2 262555efc227SAndreas Gohr $tags[0xA215] = array(5, 1); // ExposureIndex -> RATIONAL, 1 262655efc227SAndreas Gohr $tags[0xA217] = array(3, 1); // SensingMethod -> SHORT, 1 262755efc227SAndreas Gohr $tags[0xA300] = array(7, 1); // FileSource -> UNDEFINED, 1 262855efc227SAndreas Gohr $tags[0xA301] = array(7, 1); // SceneType -> UNDEFINED, 1 262955efc227SAndreas Gohr $tags[0xA302] = array(7, 0); // CFAPattern -> UNDEFINED, Any 263055efc227SAndreas Gohr } 263155efc227SAndreas Gohr elseif ($mode == 'interop') { 263255efc227SAndreas Gohr $tags[0x0001] = array(2, 0); // InteroperabilityIndex -> ASCII, Any 263355efc227SAndreas Gohr $tags[0x0002] = array(7, 4); // InteroperabilityVersion -> UNKNOWN, 4 263455efc227SAndreas Gohr $tags[0x1000] = array(2, 0); // RelatedImageFileFormat -> ASCII, Any 263555efc227SAndreas Gohr $tags[0x1001] = array(4, 1); // RelatedImageWidth -> LONG (or SHORT), 1 263655efc227SAndreas Gohr $tags[0x1002] = array(4, 1); // RelatedImageLength -> LONG (or SHORT), 1 263755efc227SAndreas Gohr } 263855efc227SAndreas Gohr elseif ($mode == 'gps') { 263955efc227SAndreas Gohr $tags[0x0000] = array(1, 4); // GPSVersionID -> BYTE, 4 264055efc227SAndreas Gohr $tags[0x0001] = array(2, 2); // GPSLatitudeRef -> ASCII, 2 264155efc227SAndreas Gohr $tags[0x0002] = array(5, 3); // GPSLatitude -> RATIONAL, 3 264255efc227SAndreas Gohr $tags[0x0003] = array(2, 2); // GPSLongitudeRef -> ASCII, 2 264355efc227SAndreas Gohr $tags[0x0004] = array(5, 3); // GPSLongitude -> RATIONAL, 3 264455efc227SAndreas Gohr $tags[0x0005] = array(2, 2); // GPSAltitudeRef -> ASCII, 2 264555efc227SAndreas Gohr $tags[0x0006] = array(5, 1); // GPSAltitude -> RATIONAL, 1 264655efc227SAndreas Gohr $tags[0x0007] = array(5, 3); // GPSTimeStamp -> RATIONAL, 3 264755efc227SAndreas Gohr $tags[0x0008] = array(2, 0); // GPSSatellites -> ASCII, Any 264855efc227SAndreas Gohr $tags[0x0009] = array(2, 2); // GPSStatus -> ASCII, 2 264955efc227SAndreas Gohr $tags[0x000A] = array(2, 2); // GPSMeasureMode -> ASCII, 2 265055efc227SAndreas Gohr $tags[0x000B] = array(5, 1); // GPSDOP -> RATIONAL, 1 265155efc227SAndreas Gohr $tags[0x000C] = array(2, 2); // GPSSpeedRef -> ASCII, 2 265255efc227SAndreas Gohr $tags[0x000D] = array(5, 1); // GPSSpeed -> RATIONAL, 1 265355efc227SAndreas Gohr $tags[0x000E] = array(2, 2); // GPSTrackRef -> ASCII, 2 265455efc227SAndreas Gohr $tags[0x000F] = array(5, 1); // GPSTrack -> RATIONAL, 1 265555efc227SAndreas Gohr $tags[0x0010] = array(2, 2); // GPSImgDirectionRef -> ASCII, 2 265655efc227SAndreas Gohr $tags[0x0011] = array(5, 1); // GPSImgDirection -> RATIONAL, 1 265755efc227SAndreas Gohr $tags[0x0012] = array(2, 0); // GPSMapDatum -> ASCII, Any 265855efc227SAndreas Gohr $tags[0x0013] = array(2, 2); // GPSDestLatitudeRef -> ASCII, 2 265955efc227SAndreas Gohr $tags[0x0014] = array(5, 3); // GPSDestLatitude -> RATIONAL, 3 266055efc227SAndreas Gohr $tags[0x0015] = array(2, 2); // GPSDestLongitudeRef -> ASCII, 2 266155efc227SAndreas Gohr $tags[0x0016] = array(5, 3); // GPSDestLongitude -> RATIONAL, 3 266255efc227SAndreas Gohr $tags[0x0017] = array(2, 2); // GPSDestBearingRef -> ASCII, 2 266355efc227SAndreas Gohr $tags[0x0018] = array(5, 1); // GPSDestBearing -> RATIONAL, 1 266455efc227SAndreas Gohr $tags[0x0019] = array(2, 2); // GPSDestDistanceRef -> ASCII, 2 266555efc227SAndreas Gohr $tags[0x001A] = array(5, 1); // GPSDestDistance -> RATIONAL, 1 266655efc227SAndreas Gohr } 266755efc227SAndreas Gohr 266855efc227SAndreas Gohr return $tags; 266955efc227SAndreas Gohr } 267055efc227SAndreas Gohr 267155efc227SAndreas Gohr /*************************************************************/ 267255efc227SAndreas Gohr function _exifNameTags($mode) 267355efc227SAndreas Gohr { 267455efc227SAndreas Gohr $tags = $this->_exifTagNames($mode); 267555efc227SAndreas Gohr return $this->_names2Tags($tags); 267655efc227SAndreas Gohr } 267755efc227SAndreas Gohr 267855efc227SAndreas Gohr /*************************************************************/ 267955efc227SAndreas Gohr function _iptcTagNames() 268055efc227SAndreas Gohr { 268155efc227SAndreas Gohr $tags = array(); 268255efc227SAndreas Gohr $tags[0x14] = 'SuplementalCategories'; 268355efc227SAndreas Gohr $tags[0x19] = 'Keywords'; 268455efc227SAndreas Gohr $tags[0x78] = 'Caption'; 268555efc227SAndreas Gohr $tags[0x7A] = 'CaptionWriter'; 268655efc227SAndreas Gohr $tags[0x69] = 'Headline'; 268755efc227SAndreas Gohr $tags[0x28] = 'SpecialInstructions'; 268855efc227SAndreas Gohr $tags[0x0F] = 'Category'; 268955efc227SAndreas Gohr $tags[0x50] = 'Byline'; 269055efc227SAndreas Gohr $tags[0x55] = 'BylineTitle'; 269155efc227SAndreas Gohr $tags[0x6E] = 'Credit'; 269255efc227SAndreas Gohr $tags[0x73] = 'Source'; 269355efc227SAndreas Gohr $tags[0x74] = 'CopyrightNotice'; 269455efc227SAndreas Gohr $tags[0x05] = 'ObjectName'; 269555efc227SAndreas Gohr $tags[0x5A] = 'City'; 269655efc227SAndreas Gohr $tags[0x5F] = 'ProvinceState'; 269755efc227SAndreas Gohr $tags[0x65] = 'CountryName'; 269855efc227SAndreas Gohr $tags[0x67] = 'OriginalTransmissionReference'; 269955efc227SAndreas Gohr $tags[0x37] = 'DateCreated'; 270055efc227SAndreas Gohr $tags[0x0A] = 'CopyrightFlag'; 270155efc227SAndreas Gohr 270255efc227SAndreas Gohr return $tags; 270355efc227SAndreas Gohr } 270455efc227SAndreas Gohr 270555efc227SAndreas Gohr /*************************************************************/ 270655efc227SAndreas Gohr function & _iptcNameTags() 270755efc227SAndreas Gohr { 270855efc227SAndreas Gohr $tags = $this->_iptcTagNames(); 270955efc227SAndreas Gohr return $this->_names2Tags($tags); 271055efc227SAndreas Gohr } 271155efc227SAndreas Gohr 271255efc227SAndreas Gohr /*************************************************************/ 271355efc227SAndreas Gohr function _names2Tags($tags2Names) 271455efc227SAndreas Gohr { 271555efc227SAndreas Gohr $names2Tags = array(); 271655efc227SAndreas Gohr reset($tags2Names); 271755efc227SAndreas Gohr while (list($tag, $name) = each($tags2Names)) { 271855efc227SAndreas Gohr $names2Tags[$name] = $tag; 271955efc227SAndreas Gohr } 272055efc227SAndreas Gohr 272155efc227SAndreas Gohr return $names2Tags; 272255efc227SAndreas Gohr } 272355efc227SAndreas Gohr 272455efc227SAndreas Gohr /*************************************************************/ 272555efc227SAndreas Gohr function _getByte(&$data, $pos) 272655efc227SAndreas Gohr { 272755efc227SAndreas Gohr return ord($data{$pos}); 272855efc227SAndreas Gohr } 272955efc227SAndreas Gohr 273055efc227SAndreas Gohr /*************************************************************/ 273155efc227SAndreas Gohr function _putByte(&$data, $pos, $val) 273255efc227SAndreas Gohr { 273355efc227SAndreas Gohr $val = intval($val); 273455efc227SAndreas Gohr 273555efc227SAndreas Gohr $data{$pos} = chr($val); 273655efc227SAndreas Gohr 273755efc227SAndreas Gohr return $pos + 1; 273855efc227SAndreas Gohr } 273955efc227SAndreas Gohr 274055efc227SAndreas Gohr /*************************************************************/ 274155efc227SAndreas Gohr function _getShort(&$data, $pos, $bigEndian = true) 274255efc227SAndreas Gohr { 274355efc227SAndreas Gohr if ($bigEndian) { 274455efc227SAndreas Gohr return (ord($data{$pos}) << 8) 274555efc227SAndreas Gohr + ord($data{$pos + 1}); 274655efc227SAndreas Gohr } 274755efc227SAndreas Gohr else { 274855efc227SAndreas Gohr return ord($data{$pos}) 274955efc227SAndreas Gohr + (ord($data{$pos + 1}) << 8); 275055efc227SAndreas Gohr } 275155efc227SAndreas Gohr } 275255efc227SAndreas Gohr 275355efc227SAndreas Gohr /*************************************************************/ 275455efc227SAndreas Gohr function _putShort(&$data, $pos = 0, $val, $bigEndian = true) 275555efc227SAndreas Gohr { 275655efc227SAndreas Gohr $val = intval($val); 275755efc227SAndreas Gohr 275855efc227SAndreas Gohr if ($bigEndian) { 275955efc227SAndreas Gohr $data{$pos + 0} = chr(($val & 0x0000FF00) >> 8); 276055efc227SAndreas Gohr $data{$pos + 1} = chr(($val & 0x000000FF) >> 0); 276155efc227SAndreas Gohr } 276255efc227SAndreas Gohr else { 276355efc227SAndreas Gohr $data{$pos + 0} = chr(($val & 0x00FF) >> 0); 276455efc227SAndreas Gohr $data{$pos + 1} = chr(($val & 0xFF00) >> 8); 276555efc227SAndreas Gohr } 276655efc227SAndreas Gohr 276755efc227SAndreas Gohr return $pos + 2; 276855efc227SAndreas Gohr } 276955efc227SAndreas Gohr 277055efc227SAndreas Gohr /*************************************************************/ 277155efc227SAndreas Gohr function _getLong(&$data, $pos, $bigEndian = true) 277255efc227SAndreas Gohr { 277355efc227SAndreas Gohr if ($bigEndian) { 277455efc227SAndreas Gohr return (ord($data{$pos}) << 24) 277555efc227SAndreas Gohr + (ord($data{$pos + 1}) << 16) 277655efc227SAndreas Gohr + (ord($data{$pos + 2}) << 8) 277755efc227SAndreas Gohr + ord($data{$pos + 3}); 277855efc227SAndreas Gohr } 277955efc227SAndreas Gohr else { 278055efc227SAndreas Gohr return ord($data{$pos}) 278155efc227SAndreas Gohr + (ord($data{$pos + 1}) << 8) 278255efc227SAndreas Gohr + (ord($data{$pos + 2}) << 16) 278355efc227SAndreas Gohr + (ord($data{$pos + 3}) << 24); 278455efc227SAndreas Gohr } 278555efc227SAndreas Gohr } 278655efc227SAndreas Gohr 278755efc227SAndreas Gohr /*************************************************************/ 278855efc227SAndreas Gohr function _putLong(&$data, $pos, $val, $bigEndian = true) 278955efc227SAndreas Gohr { 279055efc227SAndreas Gohr $val = intval($val); 279155efc227SAndreas Gohr 279255efc227SAndreas Gohr if ($bigEndian) { 279355efc227SAndreas Gohr $data{$pos + 0} = chr(($val & 0xFF000000) >> 24); 279455efc227SAndreas Gohr $data{$pos + 1} = chr(($val & 0x00FF0000) >> 16); 279555efc227SAndreas Gohr $data{$pos + 2} = chr(($val & 0x0000FF00) >> 8); 279655efc227SAndreas Gohr $data{$pos + 3} = chr(($val & 0x000000FF) >> 0); 279755efc227SAndreas Gohr } 279855efc227SAndreas Gohr else { 279955efc227SAndreas Gohr $data{$pos + 0} = chr(($val & 0x000000FF) >> 0); 280055efc227SAndreas Gohr $data{$pos + 1} = chr(($val & 0x0000FF00) >> 8); 280155efc227SAndreas Gohr $data{$pos + 2} = chr(($val & 0x00FF0000) >> 16); 280255efc227SAndreas Gohr $data{$pos + 3} = chr(($val & 0xFF000000) >> 24); 280355efc227SAndreas Gohr } 280455efc227SAndreas Gohr 280555efc227SAndreas Gohr return $pos + 4; 280655efc227SAndreas Gohr } 280755efc227SAndreas Gohr 280855efc227SAndreas Gohr /*************************************************************/ 280955efc227SAndreas Gohr function & _getNullString(&$data, $pos) 281055efc227SAndreas Gohr { 281155efc227SAndreas Gohr $str = ''; 281255efc227SAndreas Gohr $max = strlen($data); 281355efc227SAndreas Gohr 281455efc227SAndreas Gohr while ($pos < $max) { 281555efc227SAndreas Gohr if (ord($data{$pos}) == 0) { 281655efc227SAndreas Gohr return $str; 281755efc227SAndreas Gohr } 281855efc227SAndreas Gohr else { 281955efc227SAndreas Gohr $str .= $data{$pos}; 282055efc227SAndreas Gohr } 282155efc227SAndreas Gohr $pos++; 282255efc227SAndreas Gohr } 282355efc227SAndreas Gohr 282455efc227SAndreas Gohr return $str; 282555efc227SAndreas Gohr } 282655efc227SAndreas Gohr 282755efc227SAndreas Gohr /*************************************************************/ 282855efc227SAndreas Gohr function & _getFixedString(&$data, $pos, $length = -1) 282955efc227SAndreas Gohr { 283055efc227SAndreas Gohr if ($length == -1) { 283155efc227SAndreas Gohr $length = strlen($data) - $pos; 283255efc227SAndreas Gohr } 283355efc227SAndreas Gohr 283455efc227SAndreas Gohr return substr($data, $pos, $length); 283555efc227SAndreas Gohr } 283655efc227SAndreas Gohr 283755efc227SAndreas Gohr /*************************************************************/ 283855efc227SAndreas Gohr function _putString(&$data, $pos, &$str) 283955efc227SAndreas Gohr { 284055efc227SAndreas Gohr $len = strlen($str); 284155efc227SAndreas Gohr for ($i = 0; $i < $len; $i++) { 284255efc227SAndreas Gohr $data{$pos + $i} = $str{$i}; 284355efc227SAndreas Gohr } 284455efc227SAndreas Gohr 284555efc227SAndreas Gohr return $pos + $len; 284655efc227SAndreas Gohr } 284755efc227SAndreas Gohr 284855efc227SAndreas Gohr /*************************************************************/ 284955efc227SAndreas Gohr function _hexDump(&$data, $start = 0, $length = -1) 285055efc227SAndreas Gohr { 285155efc227SAndreas Gohr if (($length == -1) || (($length + $start) > strlen($data))) { 285255efc227SAndreas Gohr $end = strlen($data); 285355efc227SAndreas Gohr } 285455efc227SAndreas Gohr else { 285555efc227SAndreas Gohr $end = $start + $length; 285655efc227SAndreas Gohr } 285755efc227SAndreas Gohr 285855efc227SAndreas Gohr $ascii = ''; 285955efc227SAndreas Gohr $count = 0; 286055efc227SAndreas Gohr 286155efc227SAndreas Gohr echo "<tt>\n"; 286255efc227SAndreas Gohr 286355efc227SAndreas Gohr while ($start < $end) { 286455efc227SAndreas Gohr if (($count % 16) == 0) { 286555efc227SAndreas Gohr echo sprintf('%04d', $count) . ': '; 286655efc227SAndreas Gohr } 286755efc227SAndreas Gohr 286855efc227SAndreas Gohr $c = ord($data{$start}); 286955efc227SAndreas Gohr $count++; 287055efc227SAndreas Gohr $start++; 287155efc227SAndreas Gohr 287255efc227SAndreas Gohr $aux = dechex($c); 287355efc227SAndreas Gohr if (strlen($aux) == 1) 287455efc227SAndreas Gohr echo '0'; 287555efc227SAndreas Gohr echo $aux . ' '; 287655efc227SAndreas Gohr 287755efc227SAndreas Gohr if ($c == 60) 287855efc227SAndreas Gohr $ascii .= '<'; 287955efc227SAndreas Gohr elseif ($c == 62) 288055efc227SAndreas Gohr $ascii .= '>'; 288155efc227SAndreas Gohr elseif ($c == 32) 288255efc227SAndreas Gohr $ascii .= ' '; 288355efc227SAndreas Gohr elseif ($c > 32) 288455efc227SAndreas Gohr $ascii .= chr($c); 288555efc227SAndreas Gohr else 288655efc227SAndreas Gohr $ascii .= '.'; 288755efc227SAndreas Gohr 288855efc227SAndreas Gohr if (($count % 4) == 0) { 288955efc227SAndreas Gohr echo ' - '; 289055efc227SAndreas Gohr } 289155efc227SAndreas Gohr 289255efc227SAndreas Gohr if (($count % 16) == 0) { 289355efc227SAndreas Gohr echo ': ' . $ascii . "<br>\n"; 289455efc227SAndreas Gohr $ascii = ''; 289555efc227SAndreas Gohr } 289655efc227SAndreas Gohr } 289755efc227SAndreas Gohr 289855efc227SAndreas Gohr if ($ascii != '') { 289955efc227SAndreas Gohr while (($count % 16) != 0) { 290055efc227SAndreas Gohr echo '-- '; 290155efc227SAndreas Gohr $count++; 290255efc227SAndreas Gohr if (($count % 4) == 0) { 290355efc227SAndreas Gohr echo ' - '; 290455efc227SAndreas Gohr } 290555efc227SAndreas Gohr } 290655efc227SAndreas Gohr echo ': ' . $ascii . "<br>\n"; 290755efc227SAndreas Gohr } 290855efc227SAndreas Gohr 290955efc227SAndreas Gohr echo "</tt>\n"; 291055efc227SAndreas Gohr } 291155efc227SAndreas Gohr 291255efc227SAndreas Gohr/*****************************************************************/ 291355efc227SAndreas Gohr} 291455efc227SAndreas Gohr 291555efc227SAndreas Gohr/* vim: set expandtab tabstop=4 shiftwidth=4: */ 291655efc227SAndreas Gohr 2917