--- /dev/null
+<?php
+
+/**
+ * PEL: PHP Exif Library.
+ * A library with support for reading and
+ * writing all Exif headers in JPEG and TIFF images using PHP.
+ *
+ * Copyright (C) 2004, 2005, 2006, 2007 Martin Geisler.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program in the file COPYING; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301 USA
+ */
+namespace lsolesen\pel;
+
+ /**
+ * Namespace for functions operating on Exif tags.
+ *
+ * @author Martin Geisler <mgeisler@users.sourceforge.net>
+ * @license http://www.gnu.org/licenses/gpl.html GNU General Public
+ * License (GPL)
+ * @package PEL
+ */
+
+/**
+ * Class with static methods for Exif tags.
+ *
+ * This class defines the constants that represents the Exif tags
+ * known to PEL. They are supposed to be used whenever one needs to
+ * specify an Exif tag, and they will be denoted by the pseudo-type
+ * {@link PelTag} throughout the documentation.
+ *
+ * Please note that the constrains on the format and number of
+ * components given here are advisory only. To follow the Exif
+ * specification one should obey them, but there is nothing that
+ * prevents you from creating an {@link IMAGE_LENGTH} entry with two
+ * or more components, even though the standard says that there should
+ * be exactly one component.
+ *
+ * All the methods in this class are static and should be called with
+ * the Exif tag on which they should operate.
+ *
+ * @author Martin Geisler <mgeisler@users.sourceforge.net>
+ * @package PEL
+ */
+class PelTag
+{
+
+ /**
+ * Interoperability index.
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: 4.
+ */
+ const INTEROPERABILITY_INDEX = 0x0001;
+
+ /**
+ * Interoperability version.
+ *
+ * Format: {@link PelFormat::UNDEFINED}.
+ *
+ * Components: 4.
+ */
+ const INTEROPERABILITY_VERSION = 0x0002;
+
+ /**
+ * Image width.
+ *
+ * Format: {@link PelFormat::SHORT} or {@link PelFormat::LONG}.
+ *
+ * Components: 1.
+ */
+ const IMAGE_WIDTH = 0x0100;
+
+ /**
+ * Image length.
+ *
+ * Format: {@link PelFormat::SHORT} or {@link PelFormat::LONG}.
+ *
+ * Components: 1.
+ */
+ const IMAGE_LENGTH = 0x0101;
+
+ /**
+ * Number of bits per component.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 3.
+ */
+ const BITS_PER_SAMPLE = 0x0102;
+
+ /**
+ * Compression scheme.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const COMPRESSION = 0x0103;
+
+ /**
+ * Pixel composition.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const PHOTOMETRIC_INTERPRETATION = 0x0106;
+
+ /**
+ * Fill Order
+ *
+ * Format: Unknown.
+ *
+ * Components: Unknown.
+ */
+ const FILL_ORDER = 0x010A;
+
+ /**
+ * Document Name
+ *
+ * Format: {@link PelEntryAscii}.
+ *
+ * Components: any number.
+ */
+ const DOCUMENT_NAME = 0x010D;
+
+ /**
+ * Image Description
+ *
+ * Format: {@link PelEntryAscii}.
+ *
+ * Components: any number.
+ */
+ const IMAGE_DESCRIPTION = 0x010E;
+
+ /**
+ * Manufacturer
+ *
+ * Format: {@link PelEntryAscii}.
+ *
+ * Components: any number.
+ */
+ const MAKE = 0x010F;
+
+ /**
+ * Model
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: any number.
+ */
+ const MODEL = 0x0110;
+
+ /**
+ * Strip Offsets
+ *
+ * Format: {@link PelFormat::SHORT} or {@link PelFormat::LONG}.
+ *
+ * Components: any number.
+ */
+ const STRIP_OFFSETS = 0x0111;
+
+ /**
+ * Orientation of image.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const ORIENTATION = 0x0112;
+
+ /**
+ * Number of components.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const SAMPLES_PER_PIXEL = 0x0115;
+
+ /**
+ * Rows per Strip
+ *
+ * Format: {@link PelFormat::SHORT} or {@link PelFormat::LONG}.
+ *
+ * Components: 1.
+ */
+ const ROWS_PER_STRIP = 0x0116;
+
+ /**
+ * Strip Byte Count
+ *
+ * Format: {@link PelFormat::SHORT} or {@link PelFormat::LONG}.
+ *
+ * Components: any number.
+ */
+ const STRIP_BYTE_COUNTS = 0x0117;
+
+ /**
+ * Image resolution in width direction.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 1.
+ */
+ const X_RESOLUTION = 0x011A;
+
+ /**
+ * Image resolution in height direction.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 1.
+ */
+ const Y_RESOLUTION = 0x011B;
+
+ /**
+ * Image data arrangement.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const PLANAR_CONFIGURATION = 0x011C;
+
+ /**
+ * Unit of X and Y resolution.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const RESOLUTION_UNIT = 0x0128;
+
+ /**
+ * Transfer function.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 3.
+ */
+ const TRANSFER_FUNCTION = 0x012D;
+
+ /**
+ * Software used.
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: any number.
+ */
+ const SOFTWARE = 0x0131;
+
+ /**
+ * File change date and time.
+ *
+ * Format: {@link PelFormat::ASCII}, modelled by the {@link
+ * PelEntryTime} class.
+ *
+ * Components: 20.
+ */
+ const DATE_TIME = 0x0132;
+
+ /**
+ * Person who created the image.
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: any number.
+ */
+ const ARTIST = 0x013B;
+
+ /**
+ * White point chromaticity.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 2.
+ */
+ const WHITE_POINT = 0x013E;
+
+ /**
+ * Chromaticities of primaries.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 6.
+ */
+ const PRIMARY_CHROMATICITIES = 0x013F;
+
+ /**
+ * Transfer Range
+ *
+ * Format: Unknown.
+ *
+ * Components: Unknown.
+ */
+ const TRANSFER_RANGE = 0x0156;
+
+ /**
+ * JPEGProc
+ *
+ * Format: Unknown.
+ *
+ * Components: Unknown.
+ */
+ const JPEG_PROC = 0x0200;
+
+ /**
+ * Offset to JPEG SOI.
+ *
+ * Format: {@link PelFormat::LONG}.
+ *
+ * Components: 1.
+ */
+ const JPEG_INTERCHANGE_FORMAT = 0x0201;
+
+ /**
+ * Bytes of JPEG data.
+ *
+ * Format: {@link PelFormat::LONG}.
+ *
+ * Components: 1.
+ */
+ const JPEG_INTERCHANGE_FORMAT_LENGTH = 0x0202;
+
+ /**
+ * Color space transformation matrix coefficients.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 3.
+ */
+ const YCBCR_COEFFICIENTS = 0x0211;
+
+ /**
+ * Subsampling ratio of Y to C.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 2.
+ */
+ const YCBCR_SUB_SAMPLING = 0x0212;
+
+ /**
+ * Y and C positioning.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const YCBCR_POSITIONING = 0x0213;
+
+ /**
+ * Pair of black and white reference values.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 6.
+ */
+ const REFERENCE_BLACK_WHITE = 0x0214;
+
+ /**
+ * Related Image File Format
+ *
+ * Format: Unknown.
+ *
+ * Components: Unknown.
+ */
+ const RELATED_IMAGE_FILE_FORMAT = 0x1000;
+
+ /**
+ * Related Image Width
+ *
+ * Format: Unknown, probably {@link PelFormat::SHORT}?
+ *
+ * Components: Unknown, probably 1.
+ */
+ const RELATED_IMAGE_WIDTH = 0x1001;
+
+ /**
+ * Related Image Length
+ *
+ * Format: Unknown, probably {@link PelFormat::SHORT}?
+ *
+ * Components: Unknown, probably 1.
+ */
+ const RELATED_IMAGE_LENGTH = 0x1002;
+
+ /**
+ * Rating
+ *
+ * Format: {@link PelFormat::SHORT}
+ *
+ * Components: 1.
+ */
+ const RATING = 0x4746;
+
+ /**
+ * CFA Repeat Pattern Dim.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 2.
+ */
+ const CFA_REPEAT_PATTERN_DIM = 0x828D;
+
+ /**
+ * Battery level.
+ *
+ * Format: Unknown.
+ *
+ * Components: Unknown.
+ */
+ const BATTERY_LEVEL = 0x828F;
+
+ /**
+ * Copyright holder.
+ *
+ * Format: {@link PelFormat::ASCII}, modelled by the {@link
+ * PelEntryCopyright} class.
+ *
+ * Components: any number.
+ */
+ const COPYRIGHT = 0x8298;
+
+ /**
+ * Exposure Time
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 1.
+ */
+ const EXPOSURE_TIME = 0x829A;
+
+ /**
+ * FNumber
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 1.
+ */
+ const FNUMBER = 0x829D;
+
+ /**
+ * IPTC/NAA
+ *
+ * Format: {@link PelFormat::LONG}.
+ *
+ * Components: any number.
+ */
+ const IPTC_NAA = 0x83BB;
+
+ /**
+ * Exif IFD Pointer
+ *
+ * Format: {@link PelFormat::LONG}.
+ *
+ * Components: 1.
+ */
+ const EXIF_IFD_POINTER = 0x8769;
+
+ /**
+ * Inter Color Profile
+ *
+ * Format: {@link PelFormat::UNDEFINED}.
+ *
+ * Components: any number.
+ */
+ const INTER_COLOR_PROFILE = 0x8773;
+
+ /**
+ * Exposure Program
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const EXPOSURE_PROGRAM = 0x8822;
+
+ /**
+ * Spectral Sensitivity
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: any number.
+ */
+ const SPECTRAL_SENSITIVITY = 0x8824;
+
+ /**
+ * GPS Info IFD Pointer
+ *
+ * Format: {@link PelFormat::LONG}.
+ *
+ * Components: 1.
+ */
+ const GPS_INFO_IFD_POINTER = 0x8825;
+
+ /**
+ * ISO Speed Ratings
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 2.
+ */
+ const ISO_SPEED_RATINGS = 0x8827;
+
+ /**
+ * OECF
+ *
+ * Format: {@link PelFormat::UNDEFINED}.
+ *
+ * Components: any number.
+ */
+ const OECF = 0x8828;
+
+ /**
+ * Exif version.
+ *
+ * Format: {@link PelFormat::UNDEFINED}, modelled by the {@link
+ * PelEntryVersion} class.
+ *
+ * Components: 4.
+ */
+ const EXIF_VERSION = 0x9000;
+
+ /**
+ * Date and time of original data generation.
+ *
+ * Format: {@link PelFormat::ASCII}, modelled by the {@link
+ * PelEntryTime} class.
+ *
+ * Components: 20.
+ */
+ const DATE_TIME_ORIGINAL = 0x9003;
+
+ /**
+ * Date and time of digital data generation.
+ *
+ * Format: {@link PelFormat::ASCII}, modelled by the {@link
+ * PelEntryTime} class.
+ *
+ * Components: 20.
+ */
+ const DATE_TIME_DIGITIZED = 0x9004;
+
+ /**
+ * Meaning of each component.
+ *
+ * Format: {@link PelFormat::UNDEFINED}.
+ *
+ * Components: 4.
+ */
+ const COMPONENTS_CONFIGURATION = 0x9101;
+
+ /**
+ * Image compression mode.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 1.
+ */
+ const COMPRESSED_BITS_PER_PIXEL = 0x9102;
+
+ /**
+ * Shutter speed
+ *
+ * Format: {@link PelFormat::SRATIONAL}.
+ *
+ * Components: 1.
+ */
+ const SHUTTER_SPEED_VALUE = 0x9201;
+
+ /**
+ * Aperture
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 1.
+ */
+ const APERTURE_VALUE = 0x9202;
+
+ /**
+ * Brightness
+ *
+ * Format: {@link PelFormat::SRATIONAL}.
+ *
+ * Components: 1.
+ */
+ const BRIGHTNESS_VALUE = 0x9203;
+
+ /**
+ * Exposure Bias
+ *
+ * Format: {@link PelFormat::SRATIONAL}.
+ *
+ * Components: 1.
+ */
+ const EXPOSURE_BIAS_VALUE = 0x9204;
+
+ /**
+ * Max Aperture Value
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 1.
+ */
+ const MAX_APERTURE_VALUE = 0x9205;
+
+ /**
+ * Subject Distance
+ *
+ * Format: {@link PelFormat::SRATIONAL}.
+ *
+ * Components: 1.
+ */
+ const SUBJECT_DISTANCE = 0x9206;
+
+ /**
+ * Metering Mode
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const METERING_MODE = 0x9207;
+
+ /**
+ * Light Source
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const LIGHT_SOURCE = 0x9208;
+
+ /**
+ * Flash
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const FLASH = 0x9209;
+
+ /**
+ * Focal Length
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 1.
+ */
+ const FOCAL_LENGTH = 0x920A;
+
+ /**
+ * Subject Area
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 4.
+ */
+ const SUBJECT_AREA = 0x9214;
+
+ /**
+ * Maker Note
+ *
+ * Format: {@link PelFormat::UNDEFINED}.
+ *
+ * Components: any number.
+ */
+ const MAKER_NOTE = 0x927C;
+
+ /**
+ * User Comment
+ *
+ * Format: {@link PelFormat::UNDEFINED}, modelled by the {@link
+ * PelEntryUserComment} class.
+ *
+ * Components: any number.
+ */
+ const USER_COMMENT = 0x9286;
+
+ /**
+ * SubSec Time
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: any number.
+ */
+ const SUB_SEC_TIME = 0x9290;
+
+ /**
+ * SubSec Time Original
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: any number.
+ */
+ const SUB_SEC_TIME_ORIGINAL = 0x9291;
+
+ /**
+ * SubSec Time Digitized
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: any number.
+ */
+ const SUB_SEC_TIME_DIGITIZED = 0x9292;
+
+ /**
+ * Windows XP Title
+ *
+ * Format: {@link PelFormat::BYTE}, modelled by the
+ * {@link PelEntryWindowsString} class.
+ *
+ * Components: any number.
+ */
+ const XP_TITLE = 0x9C9B;
+
+ /**
+ * Windows XP Comment
+ *
+ * Format: {@link PelFormat::BYTE}, modelled by the
+ * {@link PelEntryWindowsString} class.
+ *
+ * Components: any number.
+ */
+ const XP_COMMENT = 0x9C9C;
+
+ /**
+ * Windows XP Author
+ *
+ * Format: {@link PelFormat::BYTE}, modelled by the
+ * {@link PelEntryWindowsString} class.
+ *
+ * Components: any number.
+ */
+ const XP_AUTHOR = 0x9C9D;
+
+ /**
+ * Windows XP Keywords
+ *
+ * Format: {@link PelFormat::BYTE}, modelled by the
+ * {@link PelEntryWindowsString} class.
+ *
+ * Components: any number.
+ */
+ const XP_KEYWORDS = 0x9C9E;
+
+ /**
+ * Windows XP Subject
+ *
+ * Format: {@link PelFormat::BYTE}, modelled by the
+ * {@link PelEntryWindowsString} class.
+ *
+ * Components: any number.
+ */
+ const XP_SUBJECT = 0x9C9F;
+
+ /**
+ * Supported Flashpix version
+ *
+ * Format: {@link PelFormat::UNDEFINED}, modelled by the {@link
+ * PelEntryVersion} class.
+ *
+ * Components: 4.
+ */
+ const FLASH_PIX_VERSION = 0xA000;
+
+ /**
+ * Color space information.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const COLOR_SPACE = 0xA001;
+
+ /**
+ * Valid image width.
+ *
+ * Format: {@link PelFormat::SHORT} or {@link PelFormat::LONG}.
+ *
+ * Components: 1.
+ */
+ const PIXEL_X_DIMENSION = 0xA002;
+
+ /**
+ * Valid image height.
+ *
+ * Format: {@link PelFormat::SHORT} or {@link PelFormat::LONG}.
+ *
+ * Components: 1.
+ */
+ const PIXEL_Y_DIMENSION = 0xA003;
+
+ /**
+ * Related audio file.
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: any number.
+ */
+ const RELATED_SOUND_FILE = 0xA004;
+
+ /**
+ * Interoperability IFD Pointer
+ *
+ * Format: {@link PelFormat::LONG}.
+ *
+ * Components: 1.
+ */
+ const INTEROPERABILITY_IFD_POINTER = 0xA005;
+
+ /**
+ * Flash energy.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 1.
+ */
+ const FLASH_ENERGY = 0xA20B;
+
+ /**
+ * Spatial frequency response.
+ *
+ * Format: {@link PelFormat::UNDEFINED}.
+ *
+ * Components: any number.
+ */
+ const SPATIAL_FREQUENCY_RESPONSE = 0xA20C;
+
+ /**
+ * Focal plane X resolution.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 1.
+ */
+ const FOCAL_PLANE_X_RESOLUTION = 0xA20E;
+
+ /**
+ * Focal plane Y resolution.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 1.
+ */
+ const FOCAL_PLANE_Y_RESOLUTION = 0xA20F;
+
+ /**
+ * Focal plane resolution unit.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const FOCAL_PLANE_RESOLUTION_UNIT = 0xA210;
+
+ /**
+ * Subject location.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const SUBJECT_LOCATION = 0xA214;
+
+ /**
+ * Exposure index.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 1.
+ */
+ const EXPOSURE_INDEX = 0xA215;
+
+ /**
+ * Sensing method.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const SENSING_METHOD = 0xA217;
+
+ /**
+ * File source.
+ *
+ * Format: {@link PelFormat::UNDEFINED}.
+ *
+ * Components: 1.
+ */
+ const FILE_SOURCE = 0xA300;
+
+ /**
+ * Scene type.
+ *
+ * Format: {@link PelFormat::UNDEFINED}.
+ *
+ * Components: 1.
+ */
+ const SCENE_TYPE = 0xA301;
+
+ /**
+ * CFA pattern.
+ *
+ * Format: {@link PelFormat::UNDEFINED}.
+ *
+ * Components: any number.
+ */
+ const CFA_PATTERN = 0xA302;
+
+ /**
+ * Custom image processing.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const CUSTOM_RENDERED = 0xA401;
+
+ /**
+ * Exposure mode.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const EXPOSURE_MODE = 0xA402;
+
+ /**
+ * White balance.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const WHITE_BALANCE = 0xA403;
+
+ /**
+ * Digital zoom ratio.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 1.
+ */
+ const DIGITAL_ZOOM_RATIO = 0xA404;
+
+ /**
+ * Focal length in 35mm film.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 1.
+ */
+ const FOCAL_LENGTH_IN_35MM_FILM = 0xA405;
+
+ /**
+ * Scene capture type.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const SCENE_CAPTURE_TYPE = 0xA406;
+
+ /**
+ * Gain control.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const GAIN_CONTROL = 0xA407;
+
+ /**
+ * Contrast.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const CONTRAST = 0xA408;
+
+ /**
+ * Saturation.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const SATURATION = 0xA409;
+
+ /**
+ * Sharpness.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const SHARPNESS = 0xA40A;
+
+ /**
+ * Device settings description.
+ *
+ * This tag indicates information on the picture-taking conditions
+ * of a particular camera model. The tag is used only to indicate
+ * the picture-taking conditions in the reader.
+ */
+ const DEVICE_SETTING_DESCRIPTION = 0xA40B;
+
+ /**
+ * Subject distance range.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const SUBJECT_DISTANCE_RANGE = 0xA40C;
+
+ /**
+ * Image unique ID.
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: 32.
+ */
+ const IMAGE_UNIQUE_ID = 0xA420;
+
+ /**
+ * Gamma.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 1.
+ */
+ const GAMMA = 0xA500;
+
+ /**
+ * PrintIM
+ *
+ * Format: {@link PelFormat::UNDEFINED}.
+ *
+ * Components: unknown.
+ */
+ const PRINT_IM = 0xC4A5;
+
+ /**
+ * GPS tag version.
+ *
+ * Format: {@link PelFormat::BYTE}.
+ *
+ * Components: 4.
+ */
+ const GPS_VERSION_ID = 0x0000;
+
+ /**
+ * North or South Latitude.
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: 2.
+ */
+ const GPS_LATITUDE_REF = 0x0001;
+
+ /**
+ * Latitude.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 3.
+ */
+ const GPS_LATITUDE = 0x0002;
+
+ /**
+ * East or West Longitude.
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: 2.
+ */
+ const GPS_LONGITUDE_REF = 0x0003;
+
+ /**
+ * Longitude.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 3.
+ */
+ const GPS_LONGITUDE = 0x0004;
+
+ /**
+ * Altitude reference.
+ *
+ * Format: {@link PelFormat::BYTE}.
+ *
+ * Components: 1.
+ */
+ const GPS_ALTITUDE_REF = 0x0005;
+
+ /**
+ * Altitude.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 1.
+ */
+ const GPS_ALTITUDE = 0x0006;
+
+ /**
+ * GPS time (atomic clock).
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 3.
+ */
+ const GPS_TIME_STAMP = 0x0007;
+
+ /**
+ * GPS satellites used for measurement.
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: Any.
+ */
+ const GPS_SATELLITES = 0x0008;
+
+ /**
+ * GPS receiver status.
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: 2.
+ */
+ const GPS_STATUS = 0x0009;
+
+ /**
+ * GPS measurement mode.
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: 2.
+ */
+ const GPS_MEASURE_MODE = 0x000A;
+
+ /**
+ * Measurement precision.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 1.
+ */
+ const GPS_DOP = 0x000B;
+
+ /**
+ * Speed unit.
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: 2.
+ */
+ const GPS_SPEED_REF = 0x000C;
+
+ /**
+ * Speed of GPS receiver.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 1.
+ */
+ const GPS_SPEED = 0x000D;
+
+ /**
+ * Reference for direction of movement.
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: 2.
+ */
+ const GPS_TRACK_REF = 0x000E;
+
+ /**
+ * Direction of movement.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 1.
+ */
+ const GPS_TRACK = 0x000F;
+
+ /**
+ * Reference for direction of image.
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: 2.
+ */
+ const GPS_IMG_DIRECTION_REF = 0x0010;
+
+ /**
+ * Direction of image.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 1.
+ */
+ const GPS_IMG_DIRECTION = 0x0011;
+
+ /**
+ * Geodetic survey data used.
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: Any.
+ */
+ const GPS_MAP_DATUM = 0x0012;
+
+ /**
+ * Reference for latitude of destination.
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: 2.
+ */
+ const GPS_DEST_LATITUDE_REF = 0x0013;
+
+ /**
+ * Latitude of destination.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 3.
+ */
+ const GPS_DEST_LATITUDE = 0x0014;
+
+ /**
+ * Reference for longitude of destination.
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: 2.
+ */
+ const GPS_DEST_LONGITUDE_REF = 0x0015;
+
+ /**
+ * Longitude of destination.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 3.
+ */
+ const GPS_DEST_LONGITUDE = 0x0016;
+
+ /**
+ * Reference for bearing of destination.
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: 2.
+ */
+ const GPS_DEST_BEARING_REF = 0x0017;
+
+ /**
+ * Bearing of destination.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 1.
+ */
+ const GPS_DEST_BEARING = 0x0018;
+
+ /**
+ * Reference for distance to destination.
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: 2.
+ */
+ const GPS_DEST_DISTANCE_REF = 0x0019;
+
+ /**
+ * Distance to destination.
+ *
+ * Format: {@link PelFormat::RATIONAL}.
+ *
+ * Components: 1.
+ */
+ const GPS_DEST_DISTANCE = 0x001A;
+
+ /**
+ * Name of GPS processing method.
+ *
+ * Format: {@link PelFormat::UNDEFINED}.
+ *
+ * Components: Any.
+ */
+ const GPS_PROCESSING_METHOD = 0x001B;
+
+ /**
+ * Name of GPS area.
+ *
+ * Format: {@link PelFormat::UNDEFINED}.
+ *
+ * Components: Any.
+ */
+ const GPS_AREA_INFORMATION = 0x001C;
+
+ /**
+ * GPS date.
+ *
+ * Format: {@link PelFormat::ASCII}.
+ *
+ * Components: 11.
+ */
+ const GPS_DATE_STAMP = 0x001D;
+
+ /**
+ * GPS differential correction.
+ *
+ * Format: {@link PelFormat::SHORT}.
+ *
+ * Components: 1.
+ */
+ const GPS_DIFFERENTIAL = 0x001E;
+
+ /**
+ * Values for tags short names.
+ */
+ protected static $exifTagsShort= array(
+ self::INTEROPERABILITY_INDEX => 'InteroperabilityIndex',
+ self::INTEROPERABILITY_VERSION => 'InteroperabilityVersion',
+ self::IMAGE_WIDTH => 'ImageWidth',
+ self::IMAGE_LENGTH => 'ImageLength',
+ self::BITS_PER_SAMPLE => 'BitsPerSample',
+ self::COMPRESSION => 'Compression',
+ self::PHOTOMETRIC_INTERPRETATION => 'PhotometricInterpretation',
+ self::FILL_ORDER => 'FillOrder',
+ self::DOCUMENT_NAME => 'DocumentName',
+ self::IMAGE_DESCRIPTION => 'ImageDescription',
+ self::MAKE => 'Make',
+ self::MODEL => 'Model',
+ self::STRIP_OFFSETS => 'StripOffsets',
+ self::ORIENTATION => 'Orientation',
+ self::SAMPLES_PER_PIXEL => 'SamplesPerPixel',
+ self::ROWS_PER_STRIP => 'RowsPerStrip',
+ self::STRIP_BYTE_COUNTS => 'StripByteCounts',
+ self::X_RESOLUTION => 'XResolution',
+ self::Y_RESOLUTION => 'YResolution',
+ self::PLANAR_CONFIGURATION => 'PlanarConfiguration',
+ self::RESOLUTION_UNIT => 'ResolutionUnit',
+ self::TRANSFER_FUNCTION => 'TransferFunction',
+ self::SOFTWARE => 'Software',
+ self::DATE_TIME => 'DateTime',
+ self::ARTIST => 'Artist',
+ self::WHITE_POINT => 'WhitePoint',
+ self::PRIMARY_CHROMATICITIES => 'PrimaryChromaticities',
+ self::TRANSFER_RANGE => 'TransferRange',
+ self::JPEG_PROC => 'JPEGProc',
+ self::JPEG_INTERCHANGE_FORMAT => 'JPEGInterchangeFormat',
+ self::JPEG_INTERCHANGE_FORMAT_LENGTH => 'JPEGInterchangeFormatLength',
+ self::YCBCR_COEFFICIENTS => 'YCbCrCoefficients',
+ self::YCBCR_SUB_SAMPLING => 'YCbCrSubSampling',
+ self::YCBCR_POSITIONING => 'YCbCrPositioning',
+ self::REFERENCE_BLACK_WHITE => 'ReferenceBlackWhite',
+ self::RELATED_IMAGE_FILE_FORMAT => 'RelatedImageFileFormat',
+ self::RELATED_IMAGE_WIDTH => 'RelatedImageWidth',
+ self::RELATED_IMAGE_LENGTH => 'RelatedImageLength',
+ self::RATING => 'Rating',
+ self::CFA_REPEAT_PATTERN_DIM => 'CFARepeatPatternDim',
+ self::CFA_PATTERN => 'CFAPattern',
+ self::BATTERY_LEVEL => 'BatteryLevel',
+ self::COPYRIGHT => 'Copyright',
+ self::EXPOSURE_TIME => 'ExposureTime',
+ self::FNUMBER => 'FNumber',
+ self::IPTC_NAA => 'IPTC/NAA',
+ self::EXIF_IFD_POINTER => 'ExifIFDPointer',
+ self::INTER_COLOR_PROFILE => 'InterColorProfile',
+ self::EXPOSURE_PROGRAM => 'ExposureProgram',
+ self::SPECTRAL_SENSITIVITY => 'SpectralSensitivity',
+ self::GPS_INFO_IFD_POINTER => 'GPSInfoIFDPointer',
+ self::ISO_SPEED_RATINGS => 'ISOSpeedRatings',
+ self::OECF => 'OECF',
+ self::EXIF_VERSION => 'ExifVersion',
+ self::DATE_TIME_ORIGINAL => 'DateTimeOriginal',
+ self::DATE_TIME_DIGITIZED => 'DateTimeDigitized',
+ self::COMPONENTS_CONFIGURATION => 'ComponentsConfiguration',
+ self::COMPRESSED_BITS_PER_PIXEL => 'CompressedBitsPerPixel',
+ self::SHUTTER_SPEED_VALUE => 'ShutterSpeedValue',
+ self::APERTURE_VALUE => 'ApertureValue',
+ self::BRIGHTNESS_VALUE => 'BrightnessValue',
+ self::EXPOSURE_BIAS_VALUE => 'ExposureBiasValue',
+ self::MAX_APERTURE_VALUE => 'MaxApertureValue',
+ self::SUBJECT_DISTANCE => 'SubjectDistance',
+ self::METERING_MODE => 'MeteringMode',
+ self::LIGHT_SOURCE => 'LightSource',
+ self::FLASH => 'Flash',
+ self::FOCAL_LENGTH => 'FocalLength',
+ self::MAKER_NOTE => 'MakerNote',
+ self::USER_COMMENT => 'UserComment',
+ self::SUB_SEC_TIME => 'SubSecTime',
+ self::SUB_SEC_TIME_ORIGINAL => 'SubSecTimeOriginal',
+ self::SUB_SEC_TIME_DIGITIZED => 'SubSecTimeDigitized',
+ self::XP_TITLE => 'WindowsXPTitle',
+ self::XP_COMMENT => 'WindowsXPComment',
+ self::XP_AUTHOR => 'WindowsXPAuthor',
+ self::XP_KEYWORDS => 'WindowsXPKeywords',
+ self::XP_SUBJECT => 'WindowsXPSubject',
+ self::FLASH_PIX_VERSION => 'FlashPixVersion',
+ self::COLOR_SPACE => 'ColorSpace',
+ self::PIXEL_X_DIMENSION => 'PixelXDimension',
+ self::PIXEL_Y_DIMENSION => 'PixelYDimension',
+ self::RELATED_SOUND_FILE => 'RelatedSoundFile',
+ self::INTEROPERABILITY_IFD_POINTER => 'InteroperabilityIFDPointer',
+ self::FLASH_ENERGY => 'FlashEnergy',
+ self::SPATIAL_FREQUENCY_RESPONSE => 'SpatialFrequencyResponse',
+ self::FOCAL_PLANE_X_RESOLUTION => 'FocalPlaneXResolution',
+ self::FOCAL_PLANE_Y_RESOLUTION => 'FocalPlaneYResolution',
+ self::FOCAL_PLANE_RESOLUTION_UNIT => 'FocalPlaneResolutionUnit',
+ self::SUBJECT_LOCATION => 'SubjectLocation',
+ self::EXPOSURE_INDEX => 'ExposureIndex',
+ self::SENSING_METHOD => 'SensingMethod',
+ self::FILE_SOURCE => 'FileSource',
+ self::SCENE_TYPE => 'SceneType',
+ self::SUBJECT_AREA => 'SubjectArea',
+ self::CUSTOM_RENDERED => 'CustomRendered',
+ self::EXPOSURE_MODE => 'ExposureMode',
+ self::WHITE_BALANCE => 'WhiteBalance',
+ self::DIGITAL_ZOOM_RATIO => 'DigitalZoomRatio',
+ self::FOCAL_LENGTH_IN_35MM_FILM => 'FocalLengthIn35mmFilm',
+ self::SCENE_CAPTURE_TYPE => 'SceneCaptureType',
+ self::GAIN_CONTROL => 'GainControl',
+ self::CONTRAST => 'Contrast',
+ self::SATURATION => 'Saturation',
+ self::SHARPNESS => 'Sharpness',
+ self::DEVICE_SETTING_DESCRIPTION => 'DeviceSettingDescription',
+ self::SUBJECT_DISTANCE_RANGE => 'SubjectDistanceRange',
+ self::IMAGE_UNIQUE_ID => 'ImageUniqueID',
+ self::GAMMA => 'Gamma',
+ self::PRINT_IM => 'PrintIM',
+ );
+
+ /**
+ * Values for tags titles.
+ */
+ protected static $exifTagsTitle = array(
+ self::INTEROPERABILITY_INDEX => 'Interoperability Index',
+ self::INTEROPERABILITY_VERSION => 'Interoperability Version',
+ self::IMAGE_WIDTH => 'Image Width',
+ self::IMAGE_LENGTH => 'Image Length',
+ self::BITS_PER_SAMPLE => 'Bits per Sample',
+ self::COMPRESSION => 'Compression',
+ self::PHOTOMETRIC_INTERPRETATION => 'Photometric Interpretation',
+ self::FILL_ORDER => 'Fill Order',
+ self::DOCUMENT_NAME => 'Document Name',
+ self::IMAGE_DESCRIPTION => 'Image Description',
+ self::MAKE => 'Manufacturer',
+ self::MODEL => 'Model',
+ self::STRIP_OFFSETS => 'Strip Offsets',
+ self::ORIENTATION => 'Orientation',
+ self::SAMPLES_PER_PIXEL => 'Samples per Pixel',
+ self::ROWS_PER_STRIP => 'Rows per Strip',
+ self::STRIP_BYTE_COUNTS => 'Strip Byte Count',
+ self::X_RESOLUTION => 'x-Resolution',
+ self::Y_RESOLUTION => 'y-Resolution',
+ self::PLANAR_CONFIGURATION => 'Planar Configuration',
+ self::RESOLUTION_UNIT => 'Resolution Unit',
+ self::TRANSFER_FUNCTION => 'Transfer Function',
+ self::SOFTWARE => 'Software',
+ self::DATE_TIME => 'Date and Time',
+ self::ARTIST => 'Artist',
+ self::WHITE_POINT => 'White Point',
+ self::PRIMARY_CHROMATICITIES => 'Primary Chromaticities',
+ self::TRANSFER_RANGE => 'Transfer Range',
+ self::JPEG_PROC => 'JPEG Process',
+ self::JPEG_INTERCHANGE_FORMAT => 'JPEG Interchange Format',
+ self::JPEG_INTERCHANGE_FORMAT_LENGTH => 'JPEG Interchange Format Length',
+ self::YCBCR_COEFFICIENTS => 'YCbCr Coefficients',
+ self::YCBCR_SUB_SAMPLING => 'YCbCr Sub-Sampling',
+ self::YCBCR_POSITIONING => 'YCbCr Positioning',
+ self::REFERENCE_BLACK_WHITE => 'Reference Black/White',
+ self::RELATED_IMAGE_FILE_FORMAT => 'Related Image File Format',
+ self::RELATED_IMAGE_WIDTH => 'Related Image Width',
+ self::RELATED_IMAGE_LENGTH => 'Related Image Length',
+ self::CFA_REPEAT_PATTERN_DIM => 'CFA Repeat Pattern Dim',
+ self::CFA_PATTERN => 'CFA Pattern',
+ self::BATTERY_LEVEL => 'Battery Level',
+ self::COPYRIGHT => 'Copyright',
+ self::EXPOSURE_TIME => 'Exposure Time',
+ self::FNUMBER => 'FNumber',
+ self::IPTC_NAA => 'IPTC/NAA',
+ self::EXIF_IFD_POINTER => 'Exif IFD Pointer',
+ self::INTER_COLOR_PROFILE => 'Inter Color Profile',
+ self::EXPOSURE_PROGRAM => 'Exposure Program',
+ self::SPECTRAL_SENSITIVITY => 'Spectral Sensitivity',
+ self::GPS_INFO_IFD_POINTER => 'GPS Info IFD Pointer',
+ self::ISO_SPEED_RATINGS => 'ISO Speed Ratings',
+ self::OECF => 'OECF',
+ self::EXIF_VERSION => 'Exif Version',
+ self::DATE_TIME_ORIGINAL => 'Date and Time (original)',
+ self::DATE_TIME_DIGITIZED => 'Date and Time (digitized)',
+ self::COMPONENTS_CONFIGURATION => 'Components Configuration',
+ self::COMPRESSED_BITS_PER_PIXEL => 'Compressed Bits per Pixel',
+ self::SHUTTER_SPEED_VALUE => 'Shutter speed',
+ self::APERTURE_VALUE => 'Aperture',
+ self::BRIGHTNESS_VALUE => 'Brightness',
+ self::EXPOSURE_BIAS_VALUE => 'Exposure Bias',
+ self::MAX_APERTURE_VALUE => 'Max Aperture Value',
+ self::SUBJECT_DISTANCE => 'Subject Distance',
+ self::METERING_MODE => 'Metering Mode',
+ self::LIGHT_SOURCE => 'Light Source',
+ self::FLASH => 'Flash',
+ self::FOCAL_LENGTH => 'Focal Length',
+ self::MAKER_NOTE => 'Maker Note',
+ self::USER_COMMENT => 'User Comment',
+ self::SUB_SEC_TIME => 'SubSec Time',
+ self::SUB_SEC_TIME_ORIGINAL => 'SubSec Time Original',
+ self::SUB_SEC_TIME_DIGITIZED => 'SubSec Time Digitized',
+ self::XP_TITLE => 'Windows XP Title',
+ self::XP_COMMENT => 'Windows XP Comment',
+ self::XP_AUTHOR => 'Windows XP Author',
+ self::XP_KEYWORDS => 'Windows XP Keywords',
+ self::XP_SUBJECT => 'Windows XP Subject',
+ self::FLASH_PIX_VERSION => 'FlashPix Version',
+ self::COLOR_SPACE => 'Color Space',
+ self::PIXEL_X_DIMENSION => 'Pixel x-Dimension',
+ self::PIXEL_Y_DIMENSION => 'Pixel y-Dimension',
+ self::RELATED_SOUND_FILE => 'Related Sound File',
+ self::INTEROPERABILITY_IFD_POINTER => 'Interoperability IFD Pointer',
+ self::FLASH_ENERGY => 'Flash Energy',
+ self::SPATIAL_FREQUENCY_RESPONSE => 'Spatial Frequency Response',
+ self::FOCAL_PLANE_X_RESOLUTION => 'Focal Plane x-Resolution',
+ self::FOCAL_PLANE_Y_RESOLUTION => 'Focal Plane y-Resolution',
+ self::FOCAL_PLANE_RESOLUTION_UNIT => 'Focal Plane Resolution Unit',
+ self::SUBJECT_LOCATION => 'Subject Location',
+ self::EXPOSURE_INDEX => 'Exposure index',
+ self::SENSING_METHOD => 'Sensing Method',
+ self::FILE_SOURCE => 'File Source',
+ self::SCENE_TYPE => 'Scene Type',
+ self::SUBJECT_AREA => 'Subject Area',
+ self::CUSTOM_RENDERED => 'Custom Rendered',
+ self::EXPOSURE_MODE => 'Exposure Mode',
+ self::WHITE_BALANCE => 'White Balance',
+ self::DIGITAL_ZOOM_RATIO => 'Digital Zoom Ratio',
+ self::FOCAL_LENGTH_IN_35MM_FILM => 'Focal Length In 35mm Film',
+ self::SCENE_CAPTURE_TYPE => 'Scene Capture Type',
+ self::GAIN_CONTROL => 'Gain Control',
+ self::CONTRAST => 'Contrast',
+ self::SATURATION => 'Saturation',
+ self::SHARPNESS => 'Sharpness',
+ self::DEVICE_SETTING_DESCRIPTION => 'Device Setting Description',
+ self::SUBJECT_DISTANCE_RANGE => 'Subject Distance Range',
+ self::IMAGE_UNIQUE_ID => 'Image Unique ID',
+ self::GAMMA => 'Gamma',
+ self::PRINT_IM => 'Print IM',
+ );
+
+ /**
+ * Values for gps tags short names.
+ */
+ protected static $gpsTagsShort = array(
+ self::GPS_VERSION_ID => 'GPSVersionID',
+ self::GPS_LATITUDE_REF => 'GPSLatitudeRef',
+ self::GPS_LATITUDE => 'GPSLatitude',
+ self::GPS_LONGITUDE_REF => 'GPSLongitudeRef',
+ self::GPS_LONGITUDE => 'GPSLongitude',
+ self::GPS_ALTITUDE_REF => 'GPSAltitudeRef',
+ self::GPS_ALTITUDE => 'GPSAltitude',
+ self::GPS_TIME_STAMP => 'GPSTimeStamp',
+ self::GPS_SATELLITES => 'GPSSatellites',
+ self::GPS_STATUS => 'GPSStatus',
+ self::GPS_MEASURE_MODE => 'GPSMeasureMode',
+ self::GPS_DOP => 'GPSDOP',
+ self::GPS_SPEED_REF => 'GPSSpeedRef',
+ self::GPS_SPEED => 'GPSSpeed',
+ self::GPS_TRACK_REF => 'GPSTrackRef',
+ self::GPS_TRACK => 'GPSTrack',
+ self::GPS_IMG_DIRECTION_REF => 'GPSImgDirectionRef',
+ self::GPS_IMG_DIRECTION => 'GPSImgDirection',
+ self::GPS_MAP_DATUM => 'GPSMapDatum',
+ self::GPS_DEST_LATITUDE_REF => 'GPSDestLatitudeRef',
+ self::GPS_DEST_LATITUDE => 'GPSDestLatitude',
+ self::GPS_DEST_LONGITUDE_REF => 'GPSDestLongitudeRef',
+ self::GPS_DEST_LONGITUDE => 'GPSDestLongitude',
+ self::GPS_DEST_BEARING_REF => 'GPSDestBearingRef',
+ self::GPS_DEST_BEARING => 'GPSDestBearing',
+ self::GPS_DEST_DISTANCE_REF => 'GPSDestDistanceRef',
+ self::GPS_DEST_DISTANCE => 'GPSDestDistance',
+ self::GPS_PROCESSING_METHOD => 'GPSProcessingMethod',
+ self::GPS_AREA_INFORMATION => 'GPSAreaInformation',
+ self::GPS_DATE_STAMP => 'GPSDateStamp',
+ self::GPS_DIFFERENTIAL => 'GPSDifferential',
+ );
+
+ /**
+ * Returns a string from container with key $tag and subcontainer index of $idx
+ *
+ * @param array $container
+ * {@link PelTag::EXIF_TAGS_SHORT}, {@link PelTag::EXIF_TAGS_TITLE},
+ * {@link PelTag::GPS_TAGS_SHORT} or {@link PelTag::GPS_TAGS_TITLE} container.
+ * @param PelTag $tag
+ * the tag.
+ *
+ * @return string short name or long name of the tag.
+ */
+ public static function getValue($container, $tag)
+ {
+ if (isset($container[ $tag ])) {
+ return $container[ $tag ];
+ }
+
+ return self::unknownTag($tag);
+ }
+
+ /**
+ * Reverse lookup of a tag id by its short name. Return false for the unknown tag name.
+ *
+ * @param string $name
+ * tag short name.
+ *
+ * @return mixed (bool|int)
+ * the tag.
+ */
+ public static function getTagByName($name)
+ {
+ $k = array_search($name, self::$exifTagsShort);
+ if ($k !== false) {
+ return $k;
+ }
+
+ return array_search($name, static::$gpsTagsShort);
+ }
+
+ /**
+ * Returns string defining unknown tag.
+ *
+ * @param int $tag
+ * the tag.
+ *
+ * @return string
+ * description string.
+ */
+ protected static function unknownTag($tag)
+ {
+ return Pel::fmt('Unknown: 0x%04X', $tag);
+ }
+
+ /**
+ * Returns a short name for an Exif tag.
+ *
+ * @param int $type
+ * the IFD type of the tag, one of {@link PelIfd::IFD0},
+ * {@link PelIfd::IFD1}, {@link PelIfd::EXIF}, {@link PelIfd::GPS},
+ * or {@link PelIfd::INTEROPERABILITY}.
+ *
+ * @param PelTag $tag
+ * the tag.
+ *
+ * @return string the short name of the tag, e.g., 'ImageWidth' for
+ * the {@link IMAGE_WIDTH} tag. If the tag is not known, the string
+ * 'Unknown:0xTTTT' will be returned where 'TTTT' is the hexadecimal
+ * representation of the tag.
+ */
+ public static function getName($type, $tag)
+ {
+ switch ($type) {
+ case PelIfd::IFD0:
+ case PelIfd::IFD1:
+ case PelIfd::EXIF:
+ case PelIfd::INTEROPERABILITY:
+ return self::getValue(self::$exifTagsShort, $tag);
+ case PelIfd::GPS:
+ return self::getValue(self::$gpsTagsShort, $tag);
+ }
+
+ return self::unknownTag($tag);
+ }
+
+ /**
+ * Returns a title for an Exif tag.
+ *
+ * @param int $type
+ * the IFD type of the tag, one of {@link PelIfd::IFD0},
+ * {@link PelIfd::IFD1}, {@link PelIfd::EXIF}, {@link PelIfd::GPS},
+ * or {@link PelIfd::INTEROPERABILITY}.
+ *
+ * @param PelTag $tag
+ * the tag.
+ *
+ * @return string the title of the tag, e.g., 'Image Width' for the
+ * {@link IMAGE_WIDTH} tag. If the tag isn't known, the string
+ * 'Unknown Tag: 0xTT' will be returned where 'TT' is the
+ * hexadecimal representation of the tag.
+ */
+ public function getTitle($type, $tag)
+ {
+ switch ($type) {
+ case PelIfd::IFD0:
+ case PelIfd::IFD1:
+ case PelIfd::EXIF:
+ case PelIfd::INTEROPERABILITY:
+ return Pel::tra(self::getValue(self::$exifTagsTitle, $tag));
+ case PelIfd::GPS:
+ return Pel::tra(self::getValue(self::$gpsTagsShort, $tag));
+ }
+
+ return self::unknownTag($tag);
+ }
+}
projects / yaffs-website / blobdiff