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