From 37d90e663ca75fdf441d449799fc94a5e467b4a7 Mon Sep 17 00:00:00 2001
From: Tim Almdal <tnalmdal@shaw.ca>
Date: Sat, 7 Feb 2009 21:44:19 +0000
Subject: Adding exifer library

---
 modules/exif/lib/makers/nikon.php | 330 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 330 insertions(+)
 create mode 100644 modules/exif/lib/makers/nikon.php

(limited to 'modules/exif/lib/makers/nikon.php')

diff --git a/modules/exif/lib/makers/nikon.php b/modules/exif/lib/makers/nikon.php
new file mode 100644
index 00000000..813cbc69
--- /dev/null
+++ b/modules/exif/lib/makers/nikon.php
@@ -0,0 +1,330 @@
+<?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 "000f": $tag = "ISOSelection";break;
+			case "0013": $tag = "ISOSelection2";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 "008d": $tag = "ColorMode";break;
+			case "0090": $tag = "LightType";break;
+			case "0094": $tag = "Saturation";break;
+			case "0095": $tag = "NoiseReduction";break;
+			case "0010": $tag = "DataDump";break;
+			
+			default: $tag = "unknown:".$tag;break;
+		}
+	} 
+	
+	return $tag;
+}
+
+//=================
+// Formats Data for the data type
+//====================================================================
+function formatNikonData($type,$tag,$intel,$model,$data) {
+
+	if($type=="ASCII") {
+		
+		
+	} else if($type=="URATIONAL" || $type=="SRATIONAL") {
+		$data = bin2hex($data);
+		if($intel==1) $data = intel2Moto($data);
+		$top = hexdec(substr($data,8,8));
+		$bottom = hexdec(substr($data,0,8));
+		if($bottom!=0) $data=$top/$bottom;
+		else if($top==0) $data = 0;
+		else $data=$top."/".$bottom;
+		
+ 				if($tag=="0085" && $model==1) { //ManualFocusDistance
+			$data=$data." m";
+		} 
+		if($tag=="0086" && $model==1) { //DigitalZoom
+			$data=$data."x";
+		} 
+		if($tag=="000a" && $model==0) { //DigitalZoom
+			$data=$data."x";
+		} 
+	} else if($type=="USHORT" || $type=="SSHORT" || $type=="ULONG" || $type=="SLONG" || $type=="FLOAT" || $type=="DOUBLE") {
+		$data = bin2hex($data);
+		if($intel==1) $data = intel2Moto($data);
+		$data=hexdec($data);
+		
+		if($tag=="0003" && $model==0) { //Quality
+			if($data == 1) $data = gettext("VGA Basic");
+			else if($data == 2) $data = gettext("VGA Normal");
+			else if($data == 3) $data = gettext("VGA Fine");
+			else if($data == 4) $data = gettext("SXGA Basic");
+			else if($data == 5) $data = gettext("SXGA Normal");
+			else if($data == 6) $data = gettext("SXGA Fine");
+			else $data = gettext("Unknown").": ".$data;
+		}
+		if($tag=="0004" && $model==0) { //Color
+			if($data == 1) $data = gettext("Color");
+			else if($data == 2) $data = gettext("Monochrome");
+			else $data = gettext("Unknown").": ".$data;
+		}
+		if($tag=="0005" && $model==0) { //Image Adjustment
+			if($data == 0) $data = gettext("Normal");
+			else if($data == 1) $data = gettext("Bright+");
+			else if($data == 2) $data = gettext("Bright-");
+			else if($data == 3) $data = gettext("Contrast+");
+			else if($data == 4) $data = gettext("Contrast-");
+			else $data = gettext("Unknown").": ".$data;
+		}
+		if($tag=="0006" && $model==0) { //CCD Sensitivity
+			if($data == 0) $data = "ISO-80";
+			else if($data == 2) $data = "ISO-160";
+			else if($data == 4) $data = "ISO-320";
+			else if($data == 5) $data = "ISO-100";
+			else $data = gettext("Unknown").": ".$data;
+		}
+		if($tag=="0007" && $model==0) { //White Balance
+			if($data == 0) $data = gettext("Auto");
+			else if($data == 1) $data = gettext("Preset");
+			else if($data == 2) $data = gettext("Daylight");
+			else if($data == 3) $data = gettext("Incandescense");
+			else if($data == 4) $data = gettext("Flourescence");
+			else if($data == 5) $data = gettext("Cloudy");
+			else if($data == 6) $data = gettext("SpeedLight");
+			else $data = gettext("Unknown").": ".$data;
+		}
+		if($tag=="000b" && $model==0) { //Converter
+			if($data == 0) $data = gettext("None");
+			else if($data == 1) $data = gettext("Fisheye");
+			else $data = gettext("Unknown").": ".$data;
+		}
+	} else if($type=="UNDEFINED") {
+		
+		if($tag=="0001" && $model==1) { //Unknown (Version?)
+			$data=$data/100;
+		}
+		if($tag=="0088" && $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;
+		}
+		
+	} else {
+		$data = bin2hex($data);
+		if($intel==1) $data = intel2Moto($data);
+		
+		if($tag=="0083" && $model==1) { //Lens Type
+				$data = hexdec(substr($data,0,2));
+			if($data == 0) $data = gettext("AF non D");
+			else if($data == 1) $data = gettext("Manual");
+			else if($data == 2) $data = "AF-D or AF-S";
+			else if($data == 6) $data = "AF-D G";
+			else if($data == 10) $data = "AF-D VR";
+			else $data = gettext("Unknown").": ".$data;
+		}
+		if($tag=="0087" && $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;
+		}
+	}
+	
+	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 = $size*hexdec($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 = $value;
+			} 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 = $size*hexdec($count);
+			
+			//4 byte value of data or pointer to data
+			$value = substr($block,$place,4);$place+=4;
+			
+			if($bytesofdata<=4) {
+				$data = $value;
+			} 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;
+			}
+		}
+		
+	}
+}
+
+
+?>
\ No newline at end of file
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