411 lines
14 KiB
PHP
411 lines
14 KiB
PHP
<?php defined("SYSPATH") or die("No direct script access.");
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//================================================================================================
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//================================================================================================
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/*
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Exifer
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Extracts EXIF information from digital photos.
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Copyright <20> 2003 Jake Olefsky
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http://www.offsky.com/software/exif/index.php
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jake@olefsky.com
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Please see exif.php for the complete information about this software.
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------------
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This program is free software; you can redistribute it and/or modify it under the terms of
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the GNU General Public License as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details. http://www.gnu.org/copyleft/gpl.html
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*/
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//================================================================================================
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//================================================================================================
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//================================================================================================
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//=================
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// Looks up the name of the tag for the MakerNote (Depends on Manufacturer)
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//====================================================================
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function lookup_Nikon_tag($tag,$model) {
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if($model==0) {
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switch($tag) {
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case "0003": $tag = "Quality";break;
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case "0004": $tag = "ColorMode";break;
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case "0005": $tag = "ImageAdjustment";break;
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case "0006": $tag = "CCDSensitivity";break;
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case "0007": $tag = "WhiteBalance";break;
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case "0008": $tag = "Focus";break;
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case "0009": $tag = "Unknown2";break;
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case "000a": $tag = "DigitalZoom";break;
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case "000b": $tag = (string) t("Converter");break;
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default: $tag = "unknown:".$tag;break;
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}
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} else if($model==1) {
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switch($tag) {
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case "0002": $tag = "ISOSetting";break;
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case "0003": $tag = "ColorMode";break;
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case "0004": $tag = "Quality";break;
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case "0005": $tag = "Whitebalance";break;
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case "0006": $tag = "ImageSharpening";break;
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case "0007": $tag = "FocusMode";break;
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case "0008": $tag = "FlashSetting";break;
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case "0009": $tag = "FlashMode";break;
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case "000b": $tag = "WhiteBalanceFine";break;
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case "000c": $tag = "WB_RBLevels";break;
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case "000d": $tag = "ProgramShift";break;
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case "000e": $tag = "ExposureDifference";break;
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case "000f": $tag = "ISOSelection";break;
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case "0010": $tag = "DataDump";break;
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case "0011": $tag = "NikonPreview";break;
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case "0012": $tag = "FlashExposureComp";break;
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case "0013": $tag = "ISOSetting2";break;
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case "0014": $tag = "ColorBalanceA";break;
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case "0016": $tag = "ImageBoundary";break;
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case "0017": $tag = "FlashExposureComp";break;
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case "0018": $tag = "FlashExposureBracketValue";break;
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case "0019": $tag = "ExposureBracketValue";break;
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case "001a": $tag = "ImageProcessing";break;
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case "001b": $tag = "CropHiSpeed";break;
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case "001c": $tag = "ExposureTuning";break;
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case "001d": $tag = "SerialNumber";break;
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case "001e": $tag = "ColorSpace";break;
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case "001f": $tag = "VRInfo";break;
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case "0020": $tag = "ImageAuthentication";break;
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case "0022": $tag = "ActiveD-Lighting";break;
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case "0023": $tag = "PictureControl";break;
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case "0024": $tag = "WorldTime";break;
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case "0025": $tag = "ISOInfo";break;
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case "002a": $tag = "VignetteControl";break;
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case "002b": $tag = "DistortInfo";break;
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case "0080": $tag = "ImageAdjustment";break;
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case "0081": $tag = "ToneCompensation";break;
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case "0082": $tag = "Adapter";break;
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case "0083": $tag = "LensType";break;
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case "0084": $tag = "LensInfo";break;
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case "0085": $tag = "ManualFocusDistance";break;
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case "0086": $tag = "DigitalZoom";break;
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case "0087": $tag = "FlashUsed";break;
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case "0088": $tag = "AFFocusPosition";break;
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case "0089": $tag = "ShootingMode";break;
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case "008b": $tag = "LensFStops";break;
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case "008c": $tag = "ContrastCurve";break;
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case "008d": $tag = "ColorMode";break;
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case "0090": $tag = "LightType";break;
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case "0092": $tag = "HueAdjustment";break;
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case "0093": $tag = "NEFCompression";break;
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case "0094": $tag = "Saturation";break;
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case "0095": $tag = "NoiseReduction";break;
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case "009a": $tag = "SensorPixelSize";break;
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default: $tag = "unknown:".$tag;break;
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}
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}
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return $tag;
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}
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//=================
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// Formats Data for the data type
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//====================================================================
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function formatNikonData($type,$tag,$intel,$model,$data) {
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switch ($type) {
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case "ASCII":
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break; // do nothing!
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case "URATIONAL":
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case"SRATIONAL":
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switch ($tag) {
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case '0084': // LensInfo
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$minFL = unRational(substr($data,0,8),$type,$intel);
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$maxFL = unRational(substr($data,8,8),$type,$intel);
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$minSP = unRational(substr($data,16,8),$type,$intel);
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$maxSP = unRational(substr($data,24,8),$type,$intel);
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if ($minFL == $maxFL) {
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$data = sprintf('%0.0f f/%0.0f',$minFL,$minSP);
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} elseif ($minSP == $maxSP) {
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$data = sprintf('%0.0f-%0.0fmm f/%0.1f',$minFL,$maxFL,$minSP);
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} else {
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$data = sprintf('%0.0f-%0.0fmm f/%0.1f-%0.1f',$minFL,$maxFL,$minSP,$maxSP);
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}
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break;
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case "0085":
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if ($model==1) $data=unRational($data,$type,$intel)." m"; //ManualFocusDistance
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break;
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case "0086":
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if ($model==1) $data=unRational($data,$type,$intel)."x"; //DigitalZoom
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break;
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case "000a":
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if ($model==0) $data=unRational($data,$type,$intel)."x"; //DigitalZoom
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break;
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default:
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$data=unRational($data,$type,$intel);
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break;
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}
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break;
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case "USHORT":
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case $type=="SSHORT":
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case $type=="ULONG":
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case $type=="SLONG":
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case $type=="FLOAT":
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case $type=="DOUBLE":
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$data = rational($data,$type,$intel);
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switch ($tag) {
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case "0003":
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if ($model==0) { //Quality
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switch ($data) {
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case 1: $data = (string) t("VGA Basic"); break;
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case 2: $data = (string) t("VGA Normal"); break;
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case 3: $data = (string) t("VGA Fine"); break;
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case 4: $data = (string) t("SXGA Basic"); break;
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case 5: $data = (string) t("SXGA Normal"); break;
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case 6: $data = (string) t("SXGA Fine"); break;
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default: $data = (string) t("Unknown").": ".$data; break;
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}
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}
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break;
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case "0004":
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if ($model==0) { //Color
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switch ($data) {
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case 1: $data = (string) t("Color"); break;
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case 2: $data = (string) t("Monochrome"); break;
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default: $data = (string) t("Unknown").": ".$data; break;
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}
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}
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break;
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case "0005":
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if ($model==0) { //Image Adjustment
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switch ($data) {
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case 0: $data = (string) t("Normal"); break;
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case 1: $data = (string) t("Bright+"); break;
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case 2: $data = (string) t("Bright-"); break;
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case 3: $data = (string) t("Contrast+"); break;
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case 4: $data = (string) t("Contrast-"); break;
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default: $data = (string) t("Unknown").": ".$data; break;
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}
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}
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break;
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case "0006":
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if ($model==0) { //CCD Sensitivity
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switch($data) {
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case 0: $data = "ISO-80"; break;
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case 2: $data = "ISO-160"; break;
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case 4: $data = "ISO-320"; break;
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case 5: $data = "ISO-100"; break;
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default: $data = (string) t("Unknown").": ".$data; break;
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}
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}
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break;
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case "0007":
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if ($model==0) { //White Balance
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switch ($data) {
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case 0: $data = (string) t("Auto"); break;
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case 1: $data = (string) t("Preset"); break;
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case 2: $data = (string) t("Daylight"); break;
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case 3: $data = (string) t("Incandescence"); break;
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case 4: $data = (string) t("Fluorescence"); break;
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case 5: $data = (string) t("Cloudy"); break;
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case 6: $data = (string) t("SpeedLight"); break;
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default: $data = (string) t("Unknown").": ".$data; break;
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}
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}
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break;
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case "000b":
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if ($model==0) { //Converter
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switch ($data) {
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case 0: $data = (string) t("None"); break;
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case 1: $data = (string) t("Fisheye"); break;
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default: $data = (string) t("Unknown").": ".$data; break;
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}
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}
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break;
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}
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break;
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case "UNDEFINED":
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switch ($tag) {
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case "0001":
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if ($model==1) $data=$data/100; break; //Unknown (Version?)
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break;
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case "0088":
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if ($model==1) { //AF Focus Position
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$temp = (string) t("Center");
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$data = bin2hex($data);
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$data = str_replace("01","Top",$data);
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$data = str_replace("02","Bottom",$data);
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$data = str_replace("03","Left",$data);
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$data = str_replace("04","Right",$data);
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$data = str_replace("00","",$data);
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if(strlen($data)==0) $data = $temp;
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}
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break;
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}
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break;
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default:
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$data = bin2hex($data);
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if($intel==1) $data = intel2Moto($data);
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switch ($tag) {
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case "0083":
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if ($model==1) { //Lens Type
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$data = hexdec(substr($data,0,2));
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switch ($data) {
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case 0: $data = (string) t("AF non D"); break;
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case 1: $data = (string) t("Manual"); break;
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case 2: $data = "AF-D or AF-S"; break;
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case 6: $data = "AF-D G"; break;
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case 10: $data = "AF-D VR"; break;
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case 14: $data = "AF-D G VR"; break;
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default: $data = (string) t("Unknown").": ".$data; break;
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}
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}
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break;
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case "0087":
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if ($model==1) { //Flash type
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$data = hexdec(substr($data,0,2));
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if($data == 0) $data = (string) t("Did Not Fire");
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else if($data == 4) $data = (string) t("Unknown");
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else if($data == 7) $data = (string) t("External");
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else if($data == 9) $data = (string) t("On Camera");
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else $data = (string) t("Unknown").": ".$data;
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}
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break;
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}
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break;
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}
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return $data;
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}
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//=================
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// Nikon Special data section
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//====================================================================
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function parseNikon($block,&$result) {
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if($result['Endien']=="Intel") $intel=1;
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else $intel=0;
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$model = $result['IFD0']['Model'];
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//these 6 models start with "Nikon". Other models dont.
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if($model=="E700\0" || $model=="E800\0" || $model=="E900\0" || $model=="E900S\0" || $model=="E910\0" || $model=="E950\0") {
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$place=8; //current place
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$model = 0;
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//Get number of tags (2 bytes)
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$num = bin2hex(substr($block,$place,2));$place+=2;
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if($intel==1) $num = intel2Moto($num);
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$result['SubIFD']['MakerNote']['MakerNoteNumTags'] = hexdec($num);
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//loop thru all tags Each field is 12 bytes
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for($i=0;$i<hexdec($num);$i++) {
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//2 byte tag
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$tag = bin2hex(substr($block,$place,2));$place+=2;
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if($intel==1) $tag = intel2Moto($tag);
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$tag_name = lookup_Nikon_tag($tag, $model);
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//2 byte type
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$type = bin2hex(substr($block,$place,2));$place+=2;
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if($intel==1) $type = intel2Moto($type);
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lookup_type($type,$size);
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//4 byte count of number of data units
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$count = bin2hex(substr($block,$place,4));$place+=4;
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if($intel==1) $count = intel2Moto($count);
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$bytesofdata = $size*hexdec($count);
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//4 byte value of data or pointer to data
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$value = substr($block,$place,4);$place+=4;
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//if tag is 0002 then its the ASCII value which we know is at 140 so calc offset
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//THIS HACK ONLY WORKS WITH EARLY NIKON MODELS
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if($tag=="0002") $offset = hexdec($value)-140;
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if($bytesofdata<=4) {
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$data = $value;
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} else {
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$value = bin2hex($value);
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if($intel==1) $value = intel2Moto($value);
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$data = substr($block,hexdec($value)-$offset,$bytesofdata*2);
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}
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$formated_data = formatNikonData($type,$tag,$intel,$model,$data);
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if($result['VerboseOutput']==1) {
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$result['SubIFD']['MakerNote'][$tag_name] = $formated_data;
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$result['SubIFD']['MakerNote'][$tag_name."_Verbose"]['RawData'] = $data;
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$result['SubIFD']['MakerNote'][$tag_name."_Verbose"]['Type'] = $type;
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$result['SubIFD']['MakerNote'][$tag_name."_Verbose"]['Bytes'] = $bytesofdata;
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} else {
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$result['SubIFD']['MakerNote'][$tag_name] = $formated_data;
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}
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}
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} else {
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$place=0;//current place
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$model = 1;
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$nikon = substr($block,$place,8);$place+=8;
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$endien = substr($block,$place,4);$place+=4;
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//2 bytes of 0x002a
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$tag = bin2hex(substr($block,$place,2));$place+=2;
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//Then 4 bytes of offset to IFD0 (usually 8 which includes all 8 bytes of TIFF header)
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$offset = bin2hex(substr($block,$place,4));$place+=4;
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if($intel==1) $offset = intel2Moto($offset);
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if(hexdec($offset)>8) $place+=$offset-8;
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//Get number of tags (2 bytes)
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$num = bin2hex(substr($block,$place,2));$place+=2;
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if($intel==1) $num = intel2Moto($num);
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//loop thru all tags Each field is 12 bytes
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for($i=0;$i<hexdec($num);$i++) {
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//2 byte tag
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$tag = bin2hex(substr($block,$place,2));$place+=2;
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if($intel==1) $tag = intel2Moto($tag);
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$tag_name = lookup_Nikon_tag($tag, $model);
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//2 byte type
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$type = bin2hex(substr($block,$place,2));$place+=2;
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if($intel==1) $type = intel2Moto($type);
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lookup_type($type,$size);
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//4 byte count of number of data units
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$count = bin2hex(substr($block,$place,4));$place+=4;
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if($intel==1) $count = intel2Moto($count);
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$bytesofdata = $size*hexdec($count);
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//4 byte value of data or pointer to data
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$value = substr($block,$place,4);$place+=4;
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if($bytesofdata<=4) {
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$data = $value;
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} else {
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$value = bin2hex($value);
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if($intel==1) $value = intel2Moto($value);
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$data = substr($block,hexdec($value)+hexdec($offset)+2,$bytesofdata);
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}
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$formated_data = formatNikonData($type,$tag,$intel,$model,$data);
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if($result['VerboseOutput']==1) {
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$result['SubIFD']['MakerNote'][$tag_name] = $formated_data;
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if($type=="URATIONAL" || $type=="SRATIONAL" || $type=="USHORT" || $type=="SSHORT" || $type=="ULONG" || $type=="SLONG" || $type=="FLOAT" || $type=="DOUBLE") {
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$data = bin2hex($data);
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if($intel==1) $data = intel2Moto($data);
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}
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$result['SubIFD']['MakerNote'][$tag_name."_Verbose"]['RawData'] = $data;
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$result['SubIFD']['MakerNote'][$tag_name."_Verbose"]['Type'] = $type;
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$result['SubIFD']['MakerNote'][$tag_name."_Verbose"]['Bytes'] = $bytesofdata;
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} else {
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$result['SubIFD']['MakerNote'][$tag_name] = $formated_data;
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}
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}
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}
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}
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?>
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