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<?php
/**
* This file is licensed under the GPL as stated in Jake Olefsky's original
* code. Jake has given Horde permission to incorporate Exifer into our
* codebase.
*
* 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.horde.org/licenses/gpl
*
* The original Exifer library has been heavily modified and refactored. All
* modifications are
*
* Copyright 2003 Jake Olefsky
* Copyright 2009-2016 Horde LLC (http://www.horde.org/)
*
* @author Jake Olefsky <jake@olefsky.com>
* @author Michael J. Rubinsky <mrubinsk@horde.org>
* @author Jan Schneider <jan@horde.org>
* @category Horde
* @package Image
*/
/**
* Class for dealing with Exif data using a bundled PHP library based on the
* Exifer code written by and Copyright 2003 Jake Olefsky
*
* @see http://www.offsky.com/software/exif/index.php
* @author Jake Olefsky <jake@olefsky.com>
* @author Michael J. Rubinsky <mrubinsk@horde.org>
* @author Jan Schneider <jan@horde.org>
* @category Horde
* @copyright 2009-2016 Horde LLC
* @package Image
*/
class Horde_Image_Exif_Parser_Nikon extends Horde_Image_Exif_Parser_Base
{
/**
*
* @param $tag
* @param $model
* @return unknown_type
*/
protected function _lookupTag($tag, $model)
{
switch ($model) {
case 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 = 'Converter'; break;
default: $tag = 'unknown: ' . $tag; break;
}
break;
case 1:
switch($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;
}
break;
}
return $tag;
}
/**
*
* @param $type
* @param $tag
* @param $intel
* @param $model
* @param $data
* @return unknown_type
*/
protected function _formatData($type, $tag, $intel, $model, $data)
{
switch ($type) {
case 'URATIONAL':
case 'SRATIONAL':
$data = bin2hex($data);
if ($intel) {
$data = Horde_Image_Exif::intel2Moto($data);
}
$top = hexdec(substr($data, 8, 8));
$bottom = hexdec(substr($data, 0, 8));
if ($bottom != 0) {
$data = $top / $bottom;
} elseif ($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';
}
break;
case 'USHORT':
case 'SSHORT':
case 'ULONG':
case 'SLONG':
case 'FLOAT':
case 'DOUBLE':
$data = bin2hex($data);
if ($intel) {
$data = Horde_Image_Exif::intel2Moto($data);
}
$data = hexdec($data);
if ($model != 0) {
break;
}
switch ($tag) {
case '0003':
//Quality
switch ($data) {
case 1: $data = Horde_Image_Translation::t("VGA Basic"); break;
case 2: $data = Horde_Image_Translation::t("VGA Normal"); break;
case 3: $data = Horde_Image_Translation::t("VGA Fine"); break;
case 4: $data = Horde_Image_Translation::t("SXGA Basic"); break;
case 5: $data = Horde_Image_Translation::t("SXGA Normal"); break;
case 6: $data = Horde_Image_Translation::t("SXGA Fine"); break;
default: $data = Horde_Image_Translation::t("Unknown") . ': ' . $data; break;
}
break;
case '0004':
//Color
switch ($data) {
case 1: $data = Horde_Image_Translation::t("Color"); break;
case 2: $data = Horde_Image_Translation::t("Monochrome"); break;
default: $data = Horde_Image_Translation::t("Unknown") . ': ' . $data; break;
}
break;
case '0005':
//Image Adjustment
switch ($data) {
case 0: $data = Horde_Image_Translation::t("Normal"); break;
case 1: $data = Horde_Image_Translation::t("Bright+"); break;
case 2: $data = Horde_Image_Translation::t("Bright-"); break;
case 3: $data = Horde_Image_Translation::t("Contrast+"); break;
case 4: $data = Horde_Image_Translation::t("Contrast-"); break;
default: $data = Horde_Image_Translation::t("Unknown") . ': ' . $data; break;
}
break;
case '0006':
//CCD Sensitivity
switch ($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 = Horde_Image_Translation::t("Unknown") . ': ' . $data; break;
}
break;
case '0007':
//White Balance
switch ($data) {
case 0: $data = Horde_Image_Translation::t("Auto"); break;
case 1: $data = Horde_Image_Translation::t("Preset"); break;
case 2: $data = Horde_Image_Translation::t("Daylight"); break;
case 3: $data = Horde_Image_Translation::t("Incandescense"); break;
case 4: $data = Horde_Image_Translation::t("Flourescence"); break;
case 5: $data = Horde_Image_Translation::t("Cloudy"); break;
case 6: $data = Horde_Image_Translation::t("SpeedLight"); break;
default: $data = Horde_Image_Translation::t("Unknown") . ': ' . $data; break;
}
break;
case '000b':
//Converter
switch ($data) {
case 0: $data = Horde_Image_Translation::t("None"); break;
case 1: $data = Horde_Image_Translation::t("Fisheye"); break;
default: $data = Horde_Image_Translation::t("Unknown") . ': ' . $data; break;
}
break;
}
case 'UNDEFINED':
if ($model != 1) {
break;
}
switch ($tag) {
case '0001':
$data = $data/100;
break;
case '0088':
//AF Focus Position
$temp = Horde_Image_Translation::t("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)) {
$data = $temp;
}
break;
}
break;
default:
$data = bin2hex($data);
if ($intel) {
$data = Horde_Image_Exif::intel2Moto($data);
}
if ($model != 1) {
break;
}
switch ($tag) {
case '0083':
//Lens Type
$data = hexdec(substr($data, 0, 2));
switch ($data) {
case 0: $data = Horde_Image_Translation::t("AF non D"); break;
case 1: $data = Horde_Image_Translation::t("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;
default: $data = Horde_Image_Translation::t("Unknown") . ': ' . $data; break;
}
break;
case '0087':
//Flash type
$data = hexdec(substr($data,0,2));
switch ($data) {
case 0: $data = Horde_Image_Translation::t("Did Not Fire"); break;
case 4: $data = Horde_Image_Translation::t("Unknown"); break;
case 7: $data = Horde_Image_Translation::t("External"); break;
case 9: $data = Horde_Image_Translation::t("On Camera"); break;
default: $data = Horde_Image_Translation::t("Unknown") . ': ' . $data; break;
}
break;
}
break;
}
return $data;
}
/**
*
* @param $block
* @param $result
* @return unknown_type
*/
public function parse($block, &$result)
{
$intel = $result['Endien'] == 'Intel';
$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") {
//current place
$place = 8;
$model = 0;
//Get number of tags (2 bytes)
$num = bin2hex(substr($block, $place, 2));
$place += 2;
if ($intel) {
$num = Horde_Image_Exif::intel2Moto($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) {
$tag = Horde_Image_Exif::intel2Moto($tag);
}
$tag_name = $this->_lookupTag($tag, $model);
//2 byte type
$type = bin2hex(substr($block, $place, 2));
$place += 2;
if ($intel) {
$type = Horde_Image_Exif::intel2Moto($type);
}
list($type, $size) = $this->_lookupType($type);
//4 byte count of number of data units
$count = bin2hex(substr($block, $place, 4));
$place += 4;
if ($intel) {
$count = Horde_Image_Exif::intel2Moto($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) {
$value = Horde_Image_Exif::intel2Moto($value);
}
$data = substr($block, hexdec($value) - $offset, $bytesofdata * 2);
}
$formated_data = $this->_formatData($type, $tag, $intel, $model, $data);
$result['SubIFD']['MakerNote'][$tag_name] = $formated_data;
}
} else {
//current place
$place = 0;
$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) {
$offset = Horde_Image_Exif::intel2Moto($offset);
}
if (hexdec($offset) > 8) {
$place += $offset - 8;
}
//Get number of tags (2 bytes)
$num = bin2hex(substr($block, $place, 2));
$place += 2;
if ($intel) {
$num = Horde_Image_Exif::intel2Moto($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) {
$tag = Horde_Image_Exif::intel2Moto($tag);
}
$tag_name = $this->_lookupTag($tag, $model);
//2 byte type
$type = bin2hex(substr($block, $place, 2));
$place += 2;
if ($intel) {
$type = Horde_Image_Exif::intel2Moto($type);
}
list($type, $size) = $this->_lookupType($type);
//4 byte count of number of data units
$count = bin2hex(substr($block, $place, 4));
$place += 4;
if ($intel) {
$count = Horde_Image_Exif::intel2Moto($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) {
$value = Horde_Image_Exif::intel2Moto($value);
}
$data = substr($block, hexdec($value) + hexdec($offset) + 2, $bytesofdata);
}
$formated_data = $this->_formatData($type, $tag, $intel, $model, $data);
$result['SubIFD']['MakerNote'][$tag_name] = $formated_data;
}
}
}
}
|
