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Diffstat (limited to 'exif.h')
| -rw-r--r-- | exif.h | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/exif.h b/exif.h deleted file mode 100644 index 0fb3a7d4a..000000000 --- a/exif.h +++ /dev/null @@ -1,147 +0,0 @@ -/************************************************************************** - exif.h -- A simple ISO C++ library to parse basic EXIF - information from a JPEG file. - - Based on the description of the EXIF file format at: - -- http://park2.wakwak.com/~tsuruzoh/Computer/Digicams/exif-e.html - -- http://www.media.mit.edu/pia/Research/deepview/exif.html - -- http://www.exif.org/Exif2-2.PDF - - Copyright (c) 2010-2013 Mayank Lahiri - mlahiri@gmail.com - All rights reserved. - - VERSION HISTORY: - ================ - - 2.1: Released July 2013 - -- fixed a bug where JPEGs without an EXIF SubIFD would not be parsed - -- fixed a bug in parsing GPS coordinate seconds - -- fixed makefile bug - -- added two pathological test images from Matt Galloway - http://www.galloway.me.uk/2012/01/uiimageorientation-exif-orientation-sample-images/ - -- split main parsing routine for easier integration into Firefox - - 2.0: Released February 2013 - -- complete rewrite - -- no new/delete - -- added GPS support - - 1.0: Released 2010 - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - - -- Redistributions of source code must retain the above copyright notice, - this list of conditions and the following disclaimer. - -- Redistributions in binary form must reproduce the above copyright notice, - this list of conditions and the following disclaimer in the documentation - and/or other materials provided with the distribution. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY EXPRESS - OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - NO EVENT SHALL THE FREEBSD PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY - OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, - EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -*/ -#ifndef EXIF_H -#define EXIF_H - -#include <string> - -// -// Class responsible for storing and parsing EXIF information from a JPEG blob -// -class EXIFInfo { -public: - // Parsing function for an entire JPEG image buffer. - // - // PARAM 'data': A pointer to a JPEG image. - // PARAM 'length': The length of the JPEG image. - // RETURN: PARSE_EXIF_SUCCESS (0) on succes with 'result' filled out - // error code otherwise, as defined by the PARSE_EXIF_ERROR_* macros - int parseFrom(const unsigned char *data, unsigned length); - int parseFrom(const std::string &data); - - // Parsing function for an EXIF segment. This is used internally by parseFrom() - // but can be called for special cases where only the EXIF section is - // available (i.e., a blob starting with the bytes "Exif\0\0"). - int parseFromEXIFSegment(const unsigned char *buf, unsigned len); - - // Set all data members to default values. - void clear(); - - // Data fields filled out by parseFrom() - char ByteAlign; // 0 = Motorola byte alignment, 1 = Intel - std::string ImageDescription; // Image description - std::string Make; // Camera manufacturer's name - std::string Model; // Camera model - unsigned short Orientation; // Image orientation, start of data corresponds to - // 0: unspecified in EXIF data - // 1: upper left of image - // 3: lower right of image - // 6: upper right of image - // 8: lower left of image - // 9: undefined - unsigned short BitsPerSample; // Number of bits per component - std::string Software; // Software used - std::string DateTime; // File change date and time - std::string DateTimeOriginal; // Original file date and time (may not exist) - std::string DateTimeDigitized; // Digitization date and time (may not exist) - std::string SubSecTimeOriginal; // Sub-second time that original picture was taken - std::string Copyright; // File copyright information - double ExposureTime; // Exposure time in seconds - double FNumber; // F/stop - unsigned short ISOSpeedRatings; // ISO speed - double ShutterSpeedValue; // Shutter speed (reciprocal of exposure time) - double ExposureBiasValue; // Exposure bias value in EV - double SubjectDistance; // Distance to focus point in meters - double FocalLength; // Focal length of lens in millimeters - unsigned short FocalLengthIn35mm; // Focal length in 35mm film - char Flash; // 0 = no flash, 1 = flash used - unsigned short MeteringMode; // Metering mode - // 1: average - // 2: center weighted average - // 3: spot - // 4: multi-spot - // 5: multi-segment - unsigned ImageWidth; // Image width reported in EXIF data - unsigned ImageHeight; // Image height reported in EXIF data - struct Geolocation_t - { // GPS information embedded in file - double Latitude; // Image latitude expressed as decimal - double Longitude; // Image longitude expressed as decimal - double Altitude; // Altitude in meters, relative to sea level - char AltitudeRef; // 0 = above sea level, -1 = below sea level - struct Coord_t { - double degrees; - double minutes; - double seconds; - char direction; - } LatComponents, LonComponents; // Latitude, Longitude expressed in deg/min/sec - } GeoLocation; - EXIFInfo() - { - clear(); - } - - time_t epoch(); -}; - -// Parse was successful -#define PARSE_EXIF_SUCCESS 0 -// No JPEG markers found in buffer, possibly invalid JPEG file -#define PARSE_EXIF_ERROR_NO_JPEG 1982 -// No EXIF header found in JPEG file. -#define PARSE_EXIF_ERROR_NO_EXIF 1983 -// Byte alignment specified in EXIF file was unknown (not Motorola or Intel). -#define PARSE_EXIF_ERROR_UNKNOWN_BYTEALIGN 1984 -// EXIF header was found, but data was corrupted. -#define PARSE_EXIF_ERROR_CORRUPT 1985 - -#endif // EXIF_H |