+++ /dev/null
-/*
- * Geeqie
- * (C) 2006 John Ellis
- * Copyright (C) 2008 The Geeqie Team
- *
- * Authors:
- * Support for Exif file format, originally written by Eric Swalens.
- * Modified by Quy Tonthat
- *
- * Reimplemented with generic data storage by John Ellis (Nov 2003)
- *
- * The tags were added with information from the FREE document:
- * http://www.ba.wakwak.com/~tsuruzoh/Computer/Digicams/exif-e.html
- *
- * For the official Exif Format, please refer to:
- * http://www.exif.org
- * http://www.exif.org/specifications.html (PDF spec sheets)
- *
- * Notes:
- * Additional tag formats should be added to the proper
- * location in ExifKnownMarkersList[].
- *
- * Human readable ouput (that needs additional processing of data to
- * be useable) can be defined by adding a key to ExifFormattedList[],
- * then handling that tag in the function exif_get_formatted_by_key().
- * The human readable formatted keys must begin with the character 'f'.
- *
- * Unsupported at this time:
- * IFD1 (thumbnail)
- * MakerNote
- * GPSInfo
- *
- * TODO:
- * Convert data to useable form in the ??_as_text function for:
- * ComponentsConfiguration
- * UserComment (convert this to UTF-8?)
- *
-
- 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; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#ifndef HAVE_EXIV2
-
-#include <stdio.h>
-#include <string.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/mman.h>
-#include <math.h>
-
-#include <glib.h>
-
-#include "intl.h"
-
-#include "main.h"
-#include "exif-int.h"
-
-#include "format_raw.h"
-#include "ui_fileops.h"
-
-
-/*
- *-----------------------------------------------------------------------------
- * Tag formats
- *-----------------------------------------------------------------------------
- */
-
-ExifFormatAttrib ExifFormatList[] = {
- { EXIF_FORMAT_UNKNOWN, 1, "unknown", "unknown" },
- { EXIF_FORMAT_BYTE_UNSIGNED, 1, "ubyte", "unsigned byte" },
- { EXIF_FORMAT_STRING, 1, "string", "string" },
- { EXIF_FORMAT_SHORT_UNSIGNED, 2, "ushort", "unsigned short" },
- { EXIF_FORMAT_LONG_UNSIGNED, 4, "ulong", "unsigned long" },
- { EXIF_FORMAT_RATIONAL_UNSIGNED,8, "urational", "unsigned rational" },
- { EXIF_FORMAT_BYTE, 1, "byte", "byte" },
- { EXIF_FORMAT_UNDEFINED, 1, "undefined", "undefined" },
- { EXIF_FORMAT_SHORT, 2, "sshort", "signed short" },
- { EXIF_FORMAT_LONG, 4, "slong", "signed long" },
- { EXIF_FORMAT_RATIONAL, 8, "srational", "signed rational" },
- { EXIF_FORMAT_FLOAT, 4, "float", "float" },
- { EXIF_FORMAT_DOUBLE, 8, "double", "double" },
- { -1, 0, NULL }
-};
-
-/* tags that are special, or need special treatment */
-#define TAG_EXIFOFFSET 0x8769
-#define TAG_EXIFMAKERNOTE 0x927c
-
-
-/*
- *-----------------------------------------------------------------------------
- * Data
- *-----------------------------------------------------------------------------
- */
-static ExifTextList ExifCompressionList[] = {
- { 1, "Uncompressed" },
- { 2, "CCITT 1D" },
- { 3, "T4/Group 3 Fax" },
- { 4, "T6/Group 4 Fax" },
- { 5, "LZW" },
- { 6, "JPEG (old style)" },
- { 7, "JPEG" },
- { 8, "Adobe Deflate" },
- { 9, "JBIG B&W" },
- { 10, "JBIG Color" },
- { 32766, "Next" },
- { 32771, "CCIRLEW" },
- { 32773, "PackBits" },
- { 32809, "ThunderScan" },
- { 32895, "IT8CTPAD" },
- { 32896, "IT8LW" },
- { 32897, "IT8MP" },
- { 32898, "IT8BL" },
- { 32908, "PixasFilm" },
- { 32909, "PixasLog" },
- { 32946, "Deflate" },
- { 32947, "DCS" },
- { 34661, "JBIG" },
- { 34676, "SGILog" },
- { 34677, "SGILog24" },
- { 34712, "JPEF 2000" },
- { 34713, "Nikon NEF Compressed" },
- EXIF_TEXT_LIST_END
-};
-
-static ExifTextList ExifOrientationList[] = {
- { EXIF_ORIENTATION_UNKNOWN, N_("unknown") },
- { EXIF_ORIENTATION_TOP_LEFT, N_("top left") },
- { EXIF_ORIENTATION_TOP_RIGHT, N_("top right") },
- { EXIF_ORIENTATION_BOTTOM_RIGHT,N_("bottom right") },
- { EXIF_ORIENTATION_BOTTOM_LEFT, N_("bottom left") },
- { EXIF_ORIENTATION_LEFT_TOP, N_("left top") },
- { EXIF_ORIENTATION_RIGHT_TOP, N_("right top") },
- { EXIF_ORIENTATION_RIGHT_BOTTOM,N_("right bottom") },
- { EXIF_ORIENTATION_LEFT_BOTTOM, N_("left bottom") },
- EXIF_TEXT_LIST_END
-};
-
-static ExifTextList ExifUnitList[] = {
- { EXIF_UNIT_UNKNOWN, N_("unknown") },
- { EXIF_UNIT_NOUNIT, "" },
- { EXIF_UNIT_INCH, N_("inch") },
- { EXIF_UNIT_CENTIMETER, N_("centimeter") },
- EXIF_TEXT_LIST_END
-};
-
-static ExifTextList ExifYCbCrPosList[] = {
- { 1, "center" },
- { 2, "datum" },
- EXIF_TEXT_LIST_END
-};
-
-static ExifTextList ExifMeteringModeList[] = {
- { 0, N_("unknown") },
- { 1, N_("average") },
- { 2, N_("center weighted") },
- { 3, N_("spot") },
- { 4, N_("multi-spot") },
- { 5, N_("multi-segment") },
- { 6, N_("partial") },
- { 255, N_("other") },
- EXIF_TEXT_LIST_END
-};
-
-static ExifTextList ExifExposureProgramList[] = {
- { 0, N_("not defined") },
- { 1, N_("manual") },
- { 2, N_("normal") },
- { 3, N_("aperture") },
- { 4, N_("shutter") },
- { 5, N_("creative") },
- { 6, N_("action") },
- { 7, N_("portrait") },
- { 8, N_("landscape") },
- EXIF_TEXT_LIST_END
-};
-
-static ExifTextList ExifLightSourceList[] = {
- { 0, N_("unknown") },
- { 1, N_("daylight") },
- { 2, N_("fluorescent") },
- { 3, N_("tungsten (incandescent)") },
- { 4, N_("flash") },
- { 9, N_("fine weather") },
- { 10, N_("cloudy weather") },
- { 11, N_("shade") },
- { 12, N_("daylight fluorescent") },
- { 13, N_("day white fluorescent") },
- { 14, N_("cool white fluorescent") },
- { 15, N_("white fluorescent") },
- { 17, N_("standard light A") },
- { 18, N_("standard light B") },
- { 19, N_("standard light C") },
- { 20, N_("D55") },
- { 21, N_("D65") },
- { 22, N_("D75") },
- { 23, N_("D50") },
- { 24, N_("ISO studio tungsten") },
- { 255, N_("other") },
- EXIF_TEXT_LIST_END
-};
-
-static ExifTextList ExifFlashList[] = {
- { 0, N_("no") },
- { 1, N_("yes") },
- { 5, N_("yes, not detected by strobe") },
- { 7, N_("yes, detected by strobe") },
- EXIF_TEXT_LIST_END
-};
-
-static ExifTextList ExifColorSpaceList[] = {
- { 1, N_("sRGB") },
- { 65535,N_("uncalibrated") },
- EXIF_TEXT_LIST_END
-};
-
-static ExifTextList ExifSensorList[] = {
- { 1, N_("not defined") },
- { 2, N_("1 chip color area") },
- { 2, N_("2 chip color area") },
- { 4, N_("3 chip color area") },
- { 5, N_("color sequential area") },
- { 7, N_("trilinear") },
- { 8, N_("color sequential linear") },
- EXIF_TEXT_LIST_END
-};
-
-static ExifTextList ExifSourceList[] = {
- { 3, N_("digital still camera") },
- EXIF_TEXT_LIST_END
-};
-
-static ExifTextList ExifSceneList[] = {
- { 1, N_("direct photo") },
- EXIF_TEXT_LIST_END
-};
-
-static ExifTextList ExifCustRenderList[] = {
- { 0, N_("normal") },
- { 1, N_("custom") },
- EXIF_TEXT_LIST_END
-};
-
-static ExifTextList ExifExposureModeList[] = {
- { 0, N_("auto") },
- { 1, N_("manual") },
- { 2, N_("auto bracket") },
- EXIF_TEXT_LIST_END
-};
-
-static ExifTextList ExifWhiteBalanceList[] = {
- { 0, N_("auto") },
- { 1, N_("manual") },
- EXIF_TEXT_LIST_END
-};
-
-static ExifTextList ExifSceneCaptureList[] = {
- { 0, N_("standard") },
- { 1, N_("landscape") },
- { 2, N_("portrait") },
- { 3, N_("night scene") },
- EXIF_TEXT_LIST_END
-};
-
-static ExifTextList ExifGainControlList[] = {
- { 0, N_("none") },
- { 1, N_("low gain up") },
- { 2, N_("high gain up") },
- { 3, N_("low gain down") },
- { 4, N_("high gain down") },
- EXIF_TEXT_LIST_END
-};
-
-static ExifTextList ExifContrastList[] = {
- { 0, N_("normal") },
- { 1, N_("soft") },
- { 2, N_("hard") },
- EXIF_TEXT_LIST_END
-};
-
-static ExifTextList ExifSaturationList[] = {
- { 0, N_("normal") },
- { 1, N_("low") },
- { 2, N_("high") },
- EXIF_TEXT_LIST_END
-};
-
-static ExifTextList ExifSharpnessList[] = {
- { 0, N_("normal") },
- { 1, N_("soft") },
- { 2, N_("hard") },
- EXIF_TEXT_LIST_END
-};
-
-static ExifTextList ExifSubjectRangeList[] = {
- { 0, N_("unknown") },
- { 1, N_("macro") },
- { 2, N_("close") },
- { 3, N_("distant") },
- EXIF_TEXT_LIST_END
-};
-
-/*
-Tag names should match to exiv2 keys, http://www.exiv2.org/metadata.html
-Tags that don't match are not supported by exiv2 and should not be used anywhere in the code
-*/
-
-ExifMarker ExifKnownMarkersList[] = {
-{ 0x0100, EXIF_FORMAT_LONG_UNSIGNED, 1, "Exif.Image.ImageWidth", N_("Image Width"), NULL },
-{ 0x0101, EXIF_FORMAT_LONG_UNSIGNED, 1, "Exif.Image.ImageLength", N_("Image Height"), NULL },
-{ 0x0102, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Exif.Image.BitsPerSample", N_("Bits per Sample/Pixel"), NULL },
-{ 0x0103, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Exif.Image.Compression", N_("Compression"), ExifCompressionList },
-{ 0x010e, EXIF_FORMAT_STRING, -1, "Exif.Image.ImageDescription", N_("Image description"), NULL },
-{ 0x010f, EXIF_FORMAT_STRING, -1, "Exif.Image.Make", N_("Camera make"), NULL },
-{ 0x0110, EXIF_FORMAT_STRING, -1, "Exif.Image.Model", N_("Camera model"), NULL },
-{ 0x0112, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Exif.Image.Orientation", N_("Orientation"), ExifOrientationList },
-{ 0x011a, EXIF_FORMAT_RATIONAL_UNSIGNED, 1, "Exif.Image.XResolution", N_("X resolution"), NULL },
-{ 0x011b, EXIF_FORMAT_RATIONAL_UNSIGNED, 1, "Exif.Image.YResolution", N_("Y Resolution"), NULL },
-{ 0x0128, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Exif.Image.ResolutionUnit", N_("Resolution units"), ExifUnitList },
-{ 0x0131, EXIF_FORMAT_STRING, -1, "Exif.Image.Software", N_("Firmware"), NULL },
-{ 0x0132, EXIF_FORMAT_STRING, 20, "Exif.Image.DateTime", N_("Date"), NULL },
-{ 0x013e, EXIF_FORMAT_RATIONAL_UNSIGNED, 2, "Exif.Image.WhitePoint", N_("White point"), NULL },
-{ 0x013f, EXIF_FORMAT_RATIONAL_UNSIGNED, 6, "Exif.Image.PrimaryChromaticities",N_("Primary chromaticities"), NULL },
-{ 0x0211, EXIF_FORMAT_RATIONAL_UNSIGNED, 3, "Exif.Image.YCbCrCoefficients", N_("YCbCy coefficients"), NULL },
-{ 0x0213, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Exif.Image.YCbCrPositioning", N_("YCbCr positioning"), ExifYCbCrPosList },
-{ 0x0214, EXIF_FORMAT_RATIONAL_UNSIGNED, 6, "Exif.Image.ReferenceBlackWhite",N_("Black white reference"), NULL },
-{ 0x8298, EXIF_FORMAT_STRING, -1, "Exif.Image.Copyright", N_("Copyright"), NULL },
-{ 0x8769, EXIF_FORMAT_LONG_UNSIGNED, 1, "Exif.Image.ExifTag", N_("SubIFD Exif offset"), NULL },
- /* subIFD follows */
-{ 0x829a, EXIF_FORMAT_RATIONAL_UNSIGNED, 1, "Exif.Photo.ExposureTime", N_("Exposure time (seconds)"), NULL },
-{ 0x829d, EXIF_FORMAT_RATIONAL_UNSIGNED, 1, "Exif.Photo.FNumber", N_("FNumber"), NULL },
-{ 0x8822, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Exif.Photo.ExposureProgram", N_("Exposure program"), ExifExposureProgramList },
-{ 0x8824, EXIF_FORMAT_STRING, -1, "Exif.Photo.SpectralSensitivity",N_("Spectral Sensitivity"), NULL },
-{ 0x8827, EXIF_FORMAT_SHORT_UNSIGNED, -1, "Exif.Photo.ISOSpeedRatings", N_("ISO sensitivity"), NULL },
-{ 0x8828, EXIF_FORMAT_UNDEFINED, -1, "Exif.Photo.OECF", N_("Optoelectric conversion factor"), NULL },
-{ 0x9000, EXIF_FORMAT_UNDEFINED, 4, "Exif.Photo.ExifVersion", N_("Exif version"), NULL },
-{ 0x9003, EXIF_FORMAT_STRING, 20, "Exif.Photo.DateTimeOriginal", N_("Date original"), NULL },
-{ 0x9004, EXIF_FORMAT_STRING, 20, "Exif.Photo.DateTimeDigitized", N_("Date digitized"), NULL },
-{ 0x9101, EXIF_FORMAT_UNDEFINED, -1, "Exif.Photo.ComponentsConfiguration",N_("Pixel format"), NULL },
-{ 0x9102, EXIF_FORMAT_RATIONAL_UNSIGNED,1, "Exif.Photo.CompressedBitsPerPixel",N_("Compression ratio"), NULL },
-{ 0x9201, EXIF_FORMAT_RATIONAL, 1, "Exif.Photo.ShutterSpeedValue", N_("Shutter speed"), NULL },
-{ 0x9202, EXIF_FORMAT_RATIONAL_UNSIGNED, 1, "Exif.Photo.ApertureValue", N_("Aperture"), NULL },
-{ 0x9203, EXIF_FORMAT_RATIONAL, 1, "Exif.Photo.BrightnessValue", N_("Brightness"), NULL },
-{ 0x9204, EXIF_FORMAT_RATIONAL, 1, "Exif.Photo.ExposureBiasValue", N_("Exposure bias"), NULL },
-{ 0x9205, EXIF_FORMAT_RATIONAL_UNSIGNED, 1, "Exif.Photo.MaxApertureValue", N_("Maximum aperture"), NULL },
-{ 0x9206, EXIF_FORMAT_RATIONAL_UNSIGNED, 1, "Exif.Photo.SubjectDistance", N_("Subject distance"), NULL },
-{ 0x9207, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Exif.Photo.MeteringMode", N_("Metering mode"), ExifMeteringModeList },
-{ 0x9208, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Exif.Photo.LightSource", N_("Light source"), ExifLightSourceList },
-{ 0x9209, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Exif.Photo.Flash", N_("Flash"), ExifFlashList },
-{ 0x920a, EXIF_FORMAT_RATIONAL_UNSIGNED, 1, "Exif.Photo.FocalLength", N_("Focal length"), NULL },
-{ 0x9214, EXIF_FORMAT_SHORT_UNSIGNED, -1, "Exif.Photo.SubjectArea", N_("Subject area"), NULL },
-{ 0x927c, EXIF_FORMAT_UNDEFINED, -1, "Exif.Photo.MakerNote", N_("MakerNote"), NULL },
-{ 0x9286, EXIF_FORMAT_UNDEFINED, -1, "Exif.Photo.UserComment", N_("UserComment"), NULL },
-{ 0x9290, EXIF_FORMAT_STRING, -1, "Exif.Photo.SubSecTime", N_("Subsecond time"), NULL },
-{ 0x9291, EXIF_FORMAT_STRING, -1, "Exif.Photo.SubSecTimeOriginal",N_("Subsecond time original"), NULL },
-{ 0x9292, EXIF_FORMAT_STRING, -1, "Exif.Photo.SubSecTimeDigitized",N_("Subsecond time digitized"), NULL },
-{ 0xa000, EXIF_FORMAT_UNDEFINED, 4, "Exif.Photo.FlashpixVersion", N_("FlashPix version"), NULL },
-{ 0xa001, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Exif.Photo.ColorSpace", N_("Colorspace"), ExifColorSpaceList },
- /* ExifImageWidth, ExifImageHeight can also be unsigned short */
-{ 0xa002, EXIF_FORMAT_LONG_UNSIGNED, 1, "Exif.Photo.PixelXDimension", N_("Width"), NULL },
-{ 0xa003, EXIF_FORMAT_LONG_UNSIGNED, 1, "Exif.Photo.PixelYDimension", N_("Height"), NULL },
-{ 0xa004, EXIF_FORMAT_STRING, -1, "Exif.Photo.RelatedSoundFile", N_("Audio data"), NULL },
-{ 0xa005, EXIF_FORMAT_LONG_UNSIGNED, 1, "ExifInteroperabilityOffset", N_("ExifR98 extension"), NULL },
-{ 0xa20b, EXIF_FORMAT_RATIONAL_UNSIGNED, 1, "Exif.Photo.FlashEnergy", N_("Flash strength"), NULL },
-{ 0xa20c, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Exif.Photo.SpatialFrequencyResponse",N_("Spatial frequency response"), NULL },
-{ 0xa20e, EXIF_FORMAT_RATIONAL_UNSIGNED, 1, "Exif.Photo.FocalPlaneXResolution", N_("X Pixel density"), NULL },
-{ 0xa20f, EXIF_FORMAT_RATIONAL_UNSIGNED, 1, "Exif.Photo.FocalPlaneYResolution", N_("Y Pixel density"), NULL },
-{ 0xa210, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Exif.Photo.FocalPlaneResolutionUnit", N_("Pixel density units"), ExifUnitList },
-{ 0x0214, EXIF_FORMAT_SHORT_UNSIGNED, 2, "Exif.Photo.SubjectLocation", N_("Subject location"), NULL },
-{ 0xa215, EXIF_FORMAT_RATIONAL_UNSIGNED, 1, "Exif.Photo.ExposureIndex", N_("ISO sensitivity"), NULL },
-{ 0xa217, EXIF_FORMAT_SHORT_UNSIGNED, -1, "Exif.Photo.SensingMethod", N_("Sensor type"), ExifSensorList },
-{ 0xa300, EXIF_FORMAT_UNDEFINED, 1, "Exif.Photo.FileSource", N_("Source type"), ExifSourceList },
-{ 0xa301, EXIF_FORMAT_UNDEFINED, 1, "Exif.Photo.SceneType", N_("Scene type"), ExifSceneList },
-{ 0xa302, EXIF_FORMAT_UNDEFINED, -1, "Exif.Image.CFAPattern", N_("Color filter array pattern"), NULL },
- /* tags a4xx were added for Exif 2.2 (not just these - some above, as well) */
-{ 0xa401, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Exif.Photo.CustomRendered", N_("Render process"), ExifCustRenderList },
-{ 0xa402, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Exif.Photo.ExposureMode", N_("Exposure mode"), ExifExposureModeList },
-{ 0xa403, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Exif.Photo.WhiteBalance", N_("White balance"), ExifWhiteBalanceList },
-{ 0xa404, EXIF_FORMAT_RATIONAL_UNSIGNED, 1, "Exif.Photo.DigitalZoomRatio", N_("Digital zoom ratio"), NULL },
-{ 0xa405, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Exif.Photo.FocalLengthIn35mmFilm",N_("Focal length (35mm)"), NULL },
-{ 0xa406, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Exif.Photo.SceneCaptureType", N_("Scene capture type"), ExifSceneCaptureList },
-{ 0xa407, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Exif.Photo.GainControl", N_("Gain control"), ExifGainControlList },
-{ 0xa408, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Exif.Photo.Contrast", N_("Contrast"), ExifContrastList },
-{ 0xa409, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Exif.Photo.Saturation", N_("Saturation"), ExifSaturationList },
-{ 0xa40a, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Exif.Photo.Sharpness", N_("Sharpness"), ExifSharpnessList },
-{ 0xa40b, EXIF_FORMAT_UNDEFINED, -1, "Exif.Photo.DeviceSettingDescription",N_("Device setting"), NULL },
-{ 0xa40c, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Exif.Photo.SubjectDistanceRange",N_("Subject range"), ExifSubjectRangeList },
-{ 0xa420, EXIF_FORMAT_STRING, -1, "Exif.Photo.ImageUniqueID", N_("Image serial number"), NULL },
- /* place known, but undocumented or lesser used tags here */
-{ 0x00fe, EXIF_FORMAT_LONG_UNSIGNED, 1, "Exif.Image.NewSubfileType", NULL, NULL },
-{ 0x00ff, EXIF_FORMAT_SHORT_UNSIGNED, 1, "SubfileType", NULL, NULL },
-{ 0x012d, EXIF_FORMAT_SHORT_UNSIGNED, 3, "Exif.Image.TransferFunction", NULL, NULL },
-{ 0x013b, EXIF_FORMAT_STRING, -1, "Exif.Image.Artist", "Artist", NULL },
-{ 0x013d, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Predictor", NULL, NULL },
-{ 0x0142, EXIF_FORMAT_SHORT_UNSIGNED, 1, "TileWidth", NULL, NULL },
-{ 0x0143, EXIF_FORMAT_SHORT_UNSIGNED, 1, "TileLength", NULL, NULL },
-{ 0x0144, EXIF_FORMAT_LONG_UNSIGNED, -1, "TileOffsets", NULL, NULL },
-{ 0x0145, EXIF_FORMAT_SHORT_UNSIGNED, -1, "TileByteCounts", NULL, NULL },
-{ 0x014a, EXIF_FORMAT_LONG_UNSIGNED, -1, "Exif.Image.SubIFDs", NULL, NULL },
-{ 0x015b, EXIF_FORMAT_UNDEFINED, -1, "JPEGTables", NULL, NULL },
-{ 0x828d, EXIF_FORMAT_SHORT_UNSIGNED, 2, "Exif.Image.CFARepeatPatternDim", NULL, NULL },
-{ 0x828e, EXIF_FORMAT_BYTE_UNSIGNED, -1, "Exif.Image.CFAPattern", NULL, NULL },
-{ 0x828f, EXIF_FORMAT_RATIONAL_UNSIGNED, 1, "Exif.Image.BatteryLevel", NULL, NULL },
-{ 0x83bb, EXIF_FORMAT_LONG_UNSIGNED, -1, "IPTC/NAA", NULL, NULL },
-{ 0x8773, EXIF_FORMAT_UNDEFINED, -1, "Exif.Image.InterColorProfile", NULL, NULL },
-{ 0x8825, EXIF_FORMAT_LONG_UNSIGNED, 1, "GPSInfo", "SubIFD GPS offset", NULL },
-{ 0x8829, EXIF_FORMAT_SHORT_UNSIGNED, 1, "Interlace", NULL, NULL },
-{ 0x882a, EXIF_FORMAT_SHORT, 1, "TimeZoneOffset", NULL, NULL },
-{ 0x882b, EXIF_FORMAT_SHORT_UNSIGNED, 1, "SelfTimerMode", NULL, NULL },
-{ 0x920b, EXIF_FORMAT_RATIONAL_UNSIGNED, 1, "Exif.Photo.FlashEnergy", NULL, NULL },
-{ 0x920c, EXIF_FORMAT_UNDEFINED, -1, "Exif.Photo.SpatialFrequencyResponse", NULL, NULL },
-{ 0x920d, EXIF_FORMAT_UNDEFINED, -1, "Noise", NULL, NULL },
-{ 0x9211, EXIF_FORMAT_LONG_UNSIGNED, 1, "ImageNumber", NULL, NULL },
-{ 0x9212, EXIF_FORMAT_STRING, 1, "SecurityClassification", NULL, NULL },
-{ 0x9213, EXIF_FORMAT_STRING, -1, "ImageHistory", NULL, NULL },
-{ 0x9215, EXIF_FORMAT_RATIONAL_UNSIGNED, 1, "Exif.Photo.ExposureIndex", NULL, NULL },
-{ 0x9216, EXIF_FORMAT_BYTE_UNSIGNED, 4, "TIFF/EPStandardID", NULL, NULL },
-
-EXIF_MARKER_LIST_END
-};
-
-ExifMarker ExifUnknownMarkersList[] = {
-{ 0x0000, EXIF_FORMAT_UNKNOWN, 0, "unknown", NULL, NULL },
-{ 0x0000, EXIF_FORMAT_BYTE_UNSIGNED, -1, "unknown", NULL, NULL },
-{ 0x0000, EXIF_FORMAT_STRING, -1, "unknown", NULL, NULL },
-{ 0x0000, EXIF_FORMAT_SHORT_UNSIGNED, -1, "unknown", NULL, NULL },
-{ 0x0000, EXIF_FORMAT_LONG_UNSIGNED, -1, "unknown", NULL, NULL },
-{ 0x0000, EXIF_FORMAT_RATIONAL_UNSIGNED, -1, "unknown", NULL, NULL },
-{ 0x0000, EXIF_FORMAT_BYTE, -1, "unknown", NULL, NULL },
-{ 0x0000, EXIF_FORMAT_UNDEFINED, -1, "unknown", NULL, NULL },
-{ 0x0000, EXIF_FORMAT_SHORT, -1, "unknown", NULL, NULL },
-{ 0x0000, EXIF_FORMAT_LONG, -1, "unknown", NULL, NULL },
-{ 0x0000, EXIF_FORMAT_RATIONAL, -1, "unknown", NULL, NULL },
-{ 0x0000, EXIF_FORMAT_FLOAT, -1, "unknown", NULL, NULL },
-{ 0x0000, EXIF_FORMAT_DOUBLE, -1, "unknown", NULL, NULL },
-};
-
-static const ExifMarker *exif_marker_from_tag(guint16 tag, const ExifMarker *list);
-
-/*
- *-----------------------------------------------------------------------------
- * ExifItem
- *-----------------------------------------------------------------------------
- */
-
-ExifItem *exif_item_new(ExifFormatType format, guint tag,
- guint elements, const ExifMarker *marker)
-{
- ExifItem *item;
-
- item = g_new0(ExifItem, 1);
- item->format = format;
- item->tag = tag;
- item->marker = marker;
- item->elements = elements;
- item->data = NULL;
- item->data_len = 0;
-
- switch (format)
- {
- case EXIF_FORMAT_UNKNOWN:
- /* unknown, data is NULL */
- return item;
- break;
- case EXIF_FORMAT_BYTE_UNSIGNED:
- item->data_len = sizeof(char) * elements;
- break;
- case EXIF_FORMAT_STRING:
- item->data_len = sizeof(char) * elements;
- break;
- case EXIF_FORMAT_SHORT_UNSIGNED:
- item->data_len = sizeof(guint16) * elements;
- break;
- case EXIF_FORMAT_LONG_UNSIGNED:
- item->data_len = sizeof(guint32) * elements;
- break;
- case EXIF_FORMAT_RATIONAL_UNSIGNED:
- item->data_len = sizeof(ExifRational) * elements;
- break;
- case EXIF_FORMAT_BYTE:
- item->data_len = sizeof(char) * elements;
- break;
- case EXIF_FORMAT_UNDEFINED:
- item->data_len = sizeof(char) * elements;
- break;
- case EXIF_FORMAT_SHORT:
- item->data_len = sizeof(gint16) * elements;
- break;
- case EXIF_FORMAT_LONG:
- item->data_len = sizeof(gint32) * elements;
- break;
- case EXIF_FORMAT_RATIONAL:
- item->data_len = sizeof(ExifRational) * elements;
- break;
- case EXIF_FORMAT_FLOAT:
- item->data_len = sizeof(float) * elements;
- break;
- case EXIF_FORMAT_DOUBLE:
- item->data_len = sizeof(double) * elements;
- break;
- }
-
- item->data = g_malloc0(item->data_len);
-
- return item;
-}
-
-static void exif_item_free(ExifItem *item)
-{
- if (!item) return;
-
- g_free(item->data);
- g_free(item);
-}
-
-char *exif_item_get_tag_name(ExifItem *item)
-{
- if (!item || !item->marker) return NULL;
- return g_strdup(item->marker->key);
-}
-
-guint exif_item_get_tag_id(ExifItem *item)
-{
- if (!item) return 0;
- return item->tag;
-}
-
-guint exif_item_get_elements(ExifItem *item)
-{
- if (!item) return 0;
- return item->elements;
-}
-
-char *exif_item_get_data(ExifItem *item, guint *data_len)
-{
- if (data_len)
- *data_len = item->data_len;
- return g_memdup(item->data, item->data_len);
-}
-
-guint exif_item_get_format_id(ExifItem *item)
-{
- if (!item) return EXIF_FORMAT_UNKNOWN;
- return item->format;
-}
-
-
-char *exif_item_get_description(ExifItem *item)
-{
- if (!item || !item->marker) return NULL;
- return g_strdup(_(item->marker->description));
-}
-
-const char *exif_item_get_format_name(ExifItem *item, gint brief)
-{
- if (!item || !item->marker) return NULL;
- return (brief) ? ExifFormatList[item->format].short_name : ExifFormatList[item->format].description;
-}
-
-static GString *string_append_raw_bytes(GString *string, gpointer data, gint ne)
-{
- gint i;
-
- for (i = 0 ; i < ne; i++)
- {
- unsigned char c = ((char *)data)[i];
- if (c < 32 || c > 127) c = '.';
- g_string_append_printf(string, "%c", c);
- }
- string = g_string_append(string, " : ");
- for (i = 0 ; i < ne; i++)
- {
- const gchar *spacer;
- if (i > 0)
- {
- if (i%8 == 0)
- {
- spacer = " - ";
- }
- else
- {
- spacer = " ";
- }
- }
- else
- {
- spacer = "";
- }
- g_string_append_printf(string, "%s%02x", spacer, ((char *)data)[i]);
- }
-
- return string;
-}
-
-
-gchar *exif_text_list_find_value(ExifTextList *list, guint value)
-{
- gchar *result = NULL;
- gint i;
-
- i = 0;
- while (!result && list[i].value >= 0)
- {
- if (value == list[i].value) result = g_strdup(_(list[i].description));
- i++;
- }
- if (!result) result = g_strdup_printf("%d (%s)", value, _("unknown"));
-
- return result;
-}
-
-
-/*
- *-------------------------------------------------------------------
- * byte order utils
- *-------------------------------------------------------------------
- */
-
-/* note: the align_buf is used to avoid alignment issues (on sparc) */
-
-guint16 exif_byte_get_int16(unsigned char *f, ExifByteOrder bo)
-{
- guint16 align_buf;
-
- memcpy(&align_buf, f, sizeof(guint16));
-
- if (bo == EXIF_BYTE_ORDER_INTEL)
- return GUINT16_FROM_LE(align_buf);
- else
- return GUINT16_FROM_BE(align_buf);
-}
-
-guint32 exif_byte_get_int32(unsigned char *f, ExifByteOrder bo)
-{
- guint32 align_buf;
-
- memcpy(&align_buf, f, sizeof(guint32));
-
- if (bo == EXIF_BYTE_ORDER_INTEL)
- return GUINT32_FROM_LE(align_buf);
- else
- return GUINT32_FROM_BE(align_buf);
-}
-
-void exif_byte_put_int16(unsigned char *f, guint16 n, ExifByteOrder bo)
-{
- guint16 align_buf;
-
- if (bo == EXIF_BYTE_ORDER_INTEL)
- {
- align_buf = GUINT16_TO_LE(n);
- }
- else
- {
- align_buf = GUINT16_TO_BE(n);
- }
-
- memcpy(f, &align_buf, sizeof(guint16));
-}
-
-void exif_byte_put_int32(unsigned char *f, guint32 n, ExifByteOrder bo)
-{
- guint32 align_buf;
-
- if (bo == EXIF_BYTE_ORDER_INTEL)
- {
- align_buf = GUINT32_TO_LE(n);
- }
- else
- {
- align_buf = GUINT32_TO_BE(n);
- }
-
- memcpy(f, &align_buf, sizeof(guint32));
-}
-
-
-/*
- *-------------------------------------------------------------------
- * IFD utils
- *-------------------------------------------------------------------
- */
-
-static const ExifMarker *exif_marker_from_tag(guint16 tag, const ExifMarker *list)
-{
- gint i = 0;
-
- if (!list) return NULL;
-
- while (list[i].tag != 0 && list[i].tag != tag)
- {
- i++;
- }
-
- return (list[i].tag == 0 ? NULL : &list[i]);
-}
-
-static void rational_from_data(ExifRational *r, void *src, ExifByteOrder bo)
-{
- r->num = exif_byte_get_int32(src, bo);
- r->den = exif_byte_get_int32(src + sizeof(guint32), bo);
-}
-
-/* src_format and item->format must be compatible
- * and not overrun src or item->data.
- */
-void exif_item_copy_data(ExifItem *item, void *src, guint len,
- ExifFormatType src_format, ExifByteOrder bo)
-{
- gint bs;
- gint ne;
- gpointer dest;
- gint i;
-
- bs = ExifFormatList[item->format].size;
- ne = item->elements;
- dest = item->data;
-
- if (!dest ||
- ExifFormatList[src_format].size * ne > len)
- {
- gchar *tag = exif_item_get_tag_name(item);
- printf("exif tag %s data size mismatch\n", tag);
- g_free(tag);
- return;
- }
-
- switch (item->format)
- {
- case EXIF_FORMAT_UNKNOWN:
- break;
- case EXIF_FORMAT_BYTE_UNSIGNED:
- case EXIF_FORMAT_BYTE:
- case EXIF_FORMAT_UNDEFINED:
- memcpy(dest, src, len);
- break;
- case EXIF_FORMAT_STRING:
- memcpy(dest, src, len);
- /* string is NULL terminated, make sure this is true */
- if (((char *)dest)[len - 1] != '\0') ((char *)dest)[len - 1] = '\0';
- break;
- case EXIF_FORMAT_SHORT_UNSIGNED:
- case EXIF_FORMAT_SHORT:
- for (i = 0; i < ne; i++)
- {
- ((guint16 *)dest)[i] = exif_byte_get_int16(src + i * bs, bo);
- }
- break;
- case EXIF_FORMAT_LONG_UNSIGNED:
- case EXIF_FORMAT_LONG:
- if (src_format == EXIF_FORMAT_SHORT_UNSIGNED ||
- src_format == EXIF_FORMAT_SHORT)
- {
- /* a short fits into a long, so allow it */
- gint ss;
-
- ss = ExifFormatList[src_format].size;
- for (i = 0; i < ne; i++)
- {
- ((gint32 *)dest)[i] =
- (gint32)exif_byte_get_int16(src + i * ss, bo);
- }
- }
- else
- {
- for (i = 0; i < ne; i++)
- {
- ((gint32 *)dest)[i] =
- exif_byte_get_int32(src + i * bs, bo);
- }
- }
- break;
- case EXIF_FORMAT_RATIONAL_UNSIGNED:
- case EXIF_FORMAT_RATIONAL:
- for (i = 0; i < ne; i++)
- {
- rational_from_data(&((ExifRational *)dest)[i], src + i * bs, bo);
- }
- break;
- case EXIF_FORMAT_FLOAT:
- for (i = 0; i < ne; i++)
- {
- ((float *)dest)[i] = exif_byte_get_int32(src + i * bs, bo);
- }
- break;
- case EXIF_FORMAT_DOUBLE:
- for (i = 0; i < ne; i++)
- {
- ExifRational r;
-
- rational_from_data(&r, src + i * bs, bo);
- if (r.den) ((double *)dest)[i] = (double)r.num / r.den;
- }
- break;
- }
-}
-
-static gint exif_parse_IFD_entry(ExifData *exif, unsigned char *tiff, guint offset,
- guint size, ExifByteOrder bo,
- gint level,
- const ExifMarker *list)
-{
- guint tag;
- guint format;
- guint count;
- guint data_val;
- guint data_offset;
- guint data_length;
- const ExifMarker *marker;
- ExifItem *item;
-
- tag = exif_byte_get_int16(tiff + offset + EXIF_TIFD_OFFSET_TAG, bo);
- format = exif_byte_get_int16(tiff + offset + EXIF_TIFD_OFFSET_FORMAT, bo);
- count = exif_byte_get_int32(tiff + offset + EXIF_TIFD_OFFSET_COUNT, bo);
- data_val = exif_byte_get_int32(tiff + offset + EXIF_TIFD_OFFSET_DATA, bo);
-
- /* Check tag type. If it does not match, either the format is wrong,
- * either it is a unknown tag; so it is not really an error.
- */
- marker = exif_marker_from_tag(tag, list);
- if (!marker)
- {
- if (format >= EXIF_FORMAT_COUNT)
- {
- printf("warning: exif tag 0x%4x has invalid format %d\n", tag, format);
- return 0;
- }
- /* allow non recognized tags to be displayed */
- marker = &ExifUnknownMarkersList[format];
- }
- if (marker->format != format)
- {
- /* Some cameras got mixed up signed/unsigned_rational
- * eg KODAK DC4800 on object_distance tag
- *
- * FIXME: what exactly is this test trying to do?
- * ok, so this test is to allow the case of swapped signed/unsigned mismatch to leak through?
- */
- if (!(marker->format == EXIF_FORMAT_RATIONAL_UNSIGNED && format == EXIF_FORMAT_RATIONAL) &&
- !(marker->format == EXIF_FORMAT_RATIONAL && format == EXIF_FORMAT_RATIONAL_UNSIGNED) &&
- /* short fits into a long so allow this mismatch
- * as well (some tags allowed to be unsigned short _or_ unsigned long)
- */
- !(marker->format == EXIF_FORMAT_LONG_UNSIGNED && format == EXIF_FORMAT_SHORT_UNSIGNED) )
- {
- if (format < EXIF_FORMAT_COUNT)
- {
- printf("warning: exif tag %s format mismatch, found %s exif spec requests %s\n",
- marker->key, ExifFormatList[format].short_name,
- ExifFormatList[marker->format].short_name);
- }
- else
- {
- printf("warning: exif tag %s format mismatch, found unknown id %d exif spec requests %d (%s)\n",
- marker->key, format, marker->format,
- ExifFormatList[marker->format].short_name);
- }
- return 0;
- }
- }
-
- /* Where is the data, is it available?
- */
- if (marker->components > 0 && marker->components != count)
- {
- printf("warning: exif tag %s has %d elements, exif spec requests %d\n",
- marker->key, count, marker->components);
- }
-
- data_length = ExifFormatList[marker->format].size * count;
- if (data_length > 4)
- {
- data_offset = data_val;
- if (size < data_offset + data_length)
- {
- printf("warning: exif tag %s data will overrun end of file, ignored.\n", marker->key);
- return -1;
- }
- }
- else
- {
- data_offset = offset + EXIF_TIFD_OFFSET_DATA;
- }
-
- item = exif_item_new(marker->format, tag, count, marker);
- exif_item_copy_data(item, tiff + data_offset, data_length, format, bo);
- exif->items = g_list_prepend(exif->items, item);
-
- if (list == ExifKnownMarkersList)
- {
- switch (item->tag)
- {
- case TAG_EXIFOFFSET:
- exif_parse_IFD_table(exif, tiff, data_val, size, bo, level + 1, list);
- break;
- case TAG_EXIFMAKERNOTE:
- format_exif_makernote_parse(exif, tiff, data_val, size, bo);
- break;
- }
- }
-
- return 0;
-}
-
-gint exif_parse_IFD_table(ExifData *exif,
- unsigned char *tiff, guint offset,
- guint size, ExifByteOrder bo,
- gint level,
- const ExifMarker *list)
-{
- guint count;
- guint i;
-
- /* limit damage from infinite loops */
- if (level > EXIF_TIFF_MAX_LEVELS) return -1;
-
- /* We should be able to read number of entries in IFD0) */
- if (size < offset + 2) return -1;
-
- count = exif_byte_get_int16(tiff + offset, bo);
- offset += 2;
-
- /* Entries and next IFD offset must be readable */
- if (size < offset + count * EXIF_TIFD_SIZE + 4) return -1;
-
- for (i = 0; i < count; i++)
- {
- exif_parse_IFD_entry(exif, tiff, offset + i * EXIF_TIFD_SIZE, size, bo, level, list);
- }
-
- return 0;
-}
-
-/*
- *-------------------------------------------------------------------
- * file formats
- *-------------------------------------------------------------------
- */
-
-gint exif_tiff_directory_offset(unsigned char *data, const guint len,
- guint *offset, ExifByteOrder *bo)
-{
- if (len < 8) return FALSE;
-
- if (memcmp(data, "II", 2) == 0)
- {
- *bo = EXIF_BYTE_ORDER_INTEL;
- }
- else if (memcmp(data, "MM", 2) == 0)
- {
- *bo = EXIF_BYTE_ORDER_MOTOROLA;
- }
- else
- {
- return FALSE;
- }
-
- if (exif_byte_get_int16(data + 2, *bo) != 0x002A)
- {
- return FALSE;
- }
-
- *offset = exif_byte_get_int32(data + 4, *bo);
-
- return (*offset < len);
-}
-
-gint exif_tiff_parse(ExifData *exif, unsigned char *tiff, guint size, ExifMarker *list)
-{
- ExifByteOrder bo;
- guint offset;
-
- if (!exif_tiff_directory_offset(tiff, size, &offset, &bo)) return -1;
-
- return exif_parse_IFD_table(exif, tiff, offset, size, bo, 0, list);
-}
-
-
-/*
- *-------------------------------------------------------------------
- * jpeg marker utils
- *-------------------------------------------------------------------
- */
-
-#define JPEG_MARKER 0xFF
-#define JPEG_MARKER_SOI 0xD8
-#define JPEG_MARKER_EOI 0xD9
-#define JPEG_MARKER_APP1 0xE1
-#define JPEG_MARKER_APP2 0xE2
-
-/* jpeg container format:
- all data markers start with 0XFF
- 2 byte long file start and end markers: 0xFFD8(SOI) and 0XFFD9(EOI)
- 4 byte long data segment markers in format: 0xFFTTSSSSNNN...
- FF: 1 byte standard marker identifier
- TT: 1 byte data type
- SSSS: 2 bytes in Motorola byte alignment for length of the data.
- This value includes these 2 bytes in the count, making actual
- length of NN... == SSSS - 2.
- NNN.: the data in this segment
- */
-static ExifMarker jpeg_color_marker = { 0x8773, EXIF_FORMAT_UNDEFINED, -1, "Exif.Image.InterColorProfile", NULL, NULL };
-
-void exif_add_jpeg_color_profile(ExifData *exif, unsigned char *cp_data, guint cp_length)
-{
- ExifItem *item = exif_item_new(jpeg_color_marker.format, jpeg_color_marker.tag, 1,
- &jpeg_color_marker);
- g_free(item->data);
- item->data = cp_data;
- item->elements = cp_length;
- item->data_len = cp_length;
- exif->items = g_list_prepend(exif->items, item);
-
-}
-
-static gint exif_jpeg_parse(ExifData *exif,
- unsigned char *data, guint size,
- ExifMarker *list)
-{
- guint seg_offset = 0;
- guint seg_length = 0;
- gint res = -1;
-
- if (size < 4 ||
- memcmp(data, "\xFF\xD8", 2) != 0)
- {
- return -2;
- }
-
- if (exif_jpeg_segment_find(data, size, JPEG_MARKER_APP1,
- "Exif\x00\x00", 6,
- &seg_offset, &seg_length))
- {
- res = exif_tiff_parse(exif, data + seg_offset + 6, seg_length - 6, list);
- }
-
- if (exif_jpeg_parse_color(exif, data, size))
- {
- res = 0;
- }
-
- return res;
-}
-
-unsigned char *exif_get_color_profile(ExifData *exif, guint *data_len)
-{
- ExifItem *prof_item = exif_get_item(exif, "Exif.Image.InterColorProfile");
- if (prof_item && exif_item_get_format_id(prof_item) == EXIF_FORMAT_UNDEFINED)
- return (unsigned char*) exif_item_get_data(prof_item, data_len);
- return NULL;
-}
-
-
-/*
- *-------------------------------------------------------------------
- * misc
- *-------------------------------------------------------------------
- */
-
-
-ExifItem *exif_get_first_item(ExifData *exif)
-{
- if (exif->items)
- {
- ExifItem *ret = (ExifItem *)exif->items->data;
- exif->current = exif->items->next;
- return ret;
- }
- exif->current = NULL;
- return NULL;
-}
-
-ExifItem *exif_get_next_item(ExifData *exif)
-{
- if (exif->current)
- {
- ExifItem *ret = (ExifItem *)exif->current->data;
- exif->current = exif->current->next;
- return ret;
- }
- return NULL;
-}
-
-static gint map_file(const gchar *path, void **mapping, int *size)
-{
- int fd;
- struct stat fs;
-
- if ((fd = open(path, O_RDONLY)) == -1)
- {
- perror(path);
- return -1;
- }
-
- if (fstat(fd, &fs) == -1)
- {
- perror(path);
- close(fd);
- return -1;
- }
-
- *size = fs.st_size;
-
- if ((*mapping = mmap(0, *size, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0)) == MAP_FAILED)
- {
- perror(path);
- close(fd);
- return -1;
- }
-
- close(fd);
- return 0;
-}
-
-static gint unmap_file(void *mapping, int size)
-{
- if (munmap(mapping, size) == -1)
- {
- perror("munmap");
- return -1;
- }
-
- return 0;
-}
-
-void exif_free(ExifData *exif)
-{
- GList *work;
-
- if (!exif) return;
-
- work = exif->items;
- while (work)
- {
- ExifItem *item = work->data;
- work = work->next;
- exif_item_free(item);
- }
-
- g_list_free(exif->items);
- g_free(exif);
-}
-
-ExifData *exif_read(gchar *path, gchar *sidecar_path)
-{
- ExifData *exif;
- void *f;
- int size, res;
- gchar *pathl;
-
- if (!path) return NULL;
-
- pathl = path_from_utf8(path);
- if (map_file(pathl, &f, &size) == -1)
- {
- g_free(pathl);
- return NULL;
- }
- g_free(pathl);
-
- exif = g_new0(ExifData, 1);
- exif->items = NULL;
- exif->current = NULL;
-
- if ((res = exif_jpeg_parse(exif, (unsigned char *)f, size,
- ExifKnownMarkersList)) == -2)
- {
- res = exif_tiff_parse(exif, (unsigned char *)f, size, ExifKnownMarkersList);
- }
-
- if (res != 0)
- {
- FormatRawExifType exif_type;
- FormatRawExifParseFunc exif_parse_func;
- guint32 offset = 0;
-
- exif_type = format_raw_exif_offset(f, size, &offset, &exif_parse_func);
- switch (exif_type)
- {
- case FORMAT_RAW_EXIF_NONE:
- default:
- break;
- case FORMAT_RAW_EXIF_TIFF:
- res = exif_tiff_parse(exif, (unsigned char*)f + offset, size - offset,
- ExifKnownMarkersList);
- break;
- case FORMAT_RAW_EXIF_JPEG:
- res = exif_jpeg_parse(exif, (unsigned char*)f + offset, size - offset,
- ExifKnownMarkersList);
- break;
- case FORMAT_RAW_EXIF_IFD_II:
- case FORMAT_RAW_EXIF_IFD_MM:
- res = exif_parse_IFD_table(exif, (unsigned char*)f, offset, size - offset,
- (exif_type == FORMAT_RAW_EXIF_IFD_II) ?
- EXIF_BYTE_ORDER_INTEL : EXIF_BYTE_ORDER_MOTOROLA,
- 0, ExifKnownMarkersList);
- break;
- case FORMAT_RAW_EXIF_PROPRIETARY:
- if (exif_parse_func)
- {
- res = exif_parse_func((unsigned char*)f + offset, size - offset, exif);
- }
- break;
- }
- }
-
- if (res != 0)
- {
- exif_free(exif);
- exif = NULL;
- }
-
- unmap_file(f, size);
-
- if (exif) exif->items = g_list_reverse(exif->items);
-
-#if 0
- exif_write_data_list(exif, stdout, TRUE);
- exif_write_data_list(exif, stdout, FALSE);
-#endif
-
- return exif;
-}
-
-ExifItem *exif_get_item(ExifData *exif, const gchar *key)
-{
- GList *work;
-
- if (!key) return NULL;
-
- work = exif->items;
- while (work)
- {
- ExifItem *item;
-
- item = work->data;
- work = work->next;
- if (item->marker->key && strcmp(key, item->marker->key) == 0) return item;
- }
- return NULL;
-}
-
-#define EXIF_DATA_AS_TEXT_MAX_COUNT 16
-
-gchar *exif_item_get_string(ExifItem *item, int idx)
-{
- return exif_item_get_data_as_text(item);
-}
-
-
-gchar *exif_item_get_data_as_text(ExifItem *item)
-{
- const ExifMarker *marker;
- gpointer data;
- GString *string;
- gchar *text;
- gint ne;
- gint i;
-
- if (!item) return NULL;
-
- marker = item->marker;
- if (!marker) return NULL;
-
- data = item->data;
- ne = item->elements;
- if (ne > EXIF_DATA_AS_TEXT_MAX_COUNT) ne = EXIF_DATA_AS_TEXT_MAX_COUNT;
- string = g_string_new("");
- switch (item->format)
- {
- case EXIF_FORMAT_UNKNOWN:
- break;
- case EXIF_FORMAT_BYTE_UNSIGNED:
- case EXIF_FORMAT_BYTE:
- case EXIF_FORMAT_UNDEFINED:
- if (ne == 1 && marker->list)
- {
- gchar *result;
- unsigned char val;
-
- if (item->format == EXIF_FORMAT_BYTE_UNSIGNED ||
- item->format == EXIF_FORMAT_UNDEFINED)
- {
- val = ((unsigned char *)data)[0];
- }
- else
- {
- val = (unsigned char)(((signed char *)data)[0]);
- }
-
- result = exif_text_list_find_value(marker->list, (guint)val);
- string = g_string_append(string, result);
- g_free(result);
- }
- else
- {
- string = string_append_raw_bytes(string, data, ne);
- }
- break;
- case EXIF_FORMAT_STRING:
- string = g_string_append(string, (gchar *)(item->data));
- break;
- case EXIF_FORMAT_SHORT_UNSIGNED:
- if (ne == 1 && marker->list)
- {
- gchar *result;
-
- result = exif_text_list_find_value(marker->list, ((guint16 *)data)[0]);
- string = g_string_append(string, result);
- g_free(result);
- }
- else for (i = 0; i < ne; i++)
- {
- g_string_append_printf(string, "%s%hd", (i > 0) ? ", " : "",
- ((guint16 *)data)[i]);
- }
- break;
- case EXIF_FORMAT_LONG_UNSIGNED:
- for (i = 0; i < ne; i++)
- {
- g_string_append_printf(string, "%s%ld", (i > 0) ? ", " : "",
- (unsigned long int)((guint32 *)data)[i]);
- }
- break;
- case EXIF_FORMAT_RATIONAL_UNSIGNED:
- for (i = 0; i < ne; i++)
- {
- ExifRational *r;
-
- r = &((ExifRational *)data)[i];
- g_string_append_printf(string, "%s%ld/%ld", (i > 0) ? ", " : "",
- (unsigned long)r->num, (unsigned long)r->den);
- }
- break;
- case EXIF_FORMAT_SHORT:
- for (i = 0; i < ne; i++)
- {
- g_string_append_printf(string, "%s%hd", (i > 0) ? ", " : "",
- ((gint16 *)data)[i]);
- }
- break;
- case EXIF_FORMAT_LONG:
- for (i = 0; i < ne; i++)
- {
- g_string_append_printf(string, "%s%ld", (i > 0) ? ", " : "",
- (long int)((gint32 *)data)[i]);
- }
- break;
- case EXIF_FORMAT_RATIONAL:
- for (i = 0; i < ne; i++)
- {
- ExifRational *r;
-
- r = &((ExifRational *)data)[i];
- g_string_append_printf(string, "%s%ld/%ld", (i > 0) ? ", " : "",
- (long)r->num, (long)r->den);
- }
- break;
- case EXIF_FORMAT_FLOAT:
- for (i = 0; i < ne; i++)
- {
- g_string_append_printf(string, "%s%f", (i > 0) ? ", " : "",
- ((float *)data)[i]);
- }
- break;
- case EXIF_FORMAT_DOUBLE:
- for (i = 0; i < ne; i++)
- {
- g_string_append_printf(string, "%s%f", (i > 0) ? ", " : "",
- ((double *)data)[i]);
- }
- break;
- }
-
- if (item->elements > EXIF_DATA_AS_TEXT_MAX_COUNT &&
- item->format != EXIF_FORMAT_STRING)
- {
- g_string_append(string, " ...");
- }
-
- text = string->str;
- g_string_free(string, FALSE);
-
- return text;
-}
-
-gint exif_item_get_integer(ExifItem *item, gint *value)
-{
- if (!item) return FALSE;
-
- switch (item->format)
- {
- case EXIF_FORMAT_SHORT:
- *value = (gint)(((gint16 *)(item->data))[0]);
- return TRUE;
- break;
- case EXIF_FORMAT_SHORT_UNSIGNED:
- *value = (gint)(((guint16 *)(item->data))[0]);
- return TRUE;
- break;
- case EXIF_FORMAT_LONG:
- *value = (gint)(((gint32 *)(item->data))[0]);
- return TRUE;
- break;
- case EXIF_FORMAT_LONG_UNSIGNED:
- /* FIXME: overflow possible */
- *value = (gint)(((guint32 *)(item->data))[0]);
- return TRUE;
- default:
- /* all other type return FALSE */
- break;
- }
- return FALSE;
-}
-
-
-ExifRational *exif_item_get_rational(ExifItem *item, gint *sign)
-{
- if (!item) return NULL;
-
- if (item->format == EXIF_FORMAT_RATIONAL ||
- item->format == EXIF_FORMAT_RATIONAL_UNSIGNED)
- {
- if (sign) *sign = (item->format == EXIF_FORMAT_RATIONAL);
- return &((ExifRational *)(item->data))[0];
- }
-
- return NULL;
-}
-
-const gchar *exif_get_tag_description_by_key(const gchar *key)
-{
- gint i;
-
- if (!key) return NULL;
-
- i = 0;
- while (ExifKnownMarkersList[i].tag > 0)
- {
- if (strcmp(key, ExifKnownMarkersList[i].key) == 0) return _(ExifKnownMarkersList[i].description);
- i++;
- }
-
- return NULL;
-}
-
-static void exif_write_item(FILE *f, ExifItem *item)
-{
- gchar *text;
-
- text = exif_item_get_data_as_text(item);
- if (text)
- {
- gchar *tag = exif_item_get_tag_name(item);
- fprintf(f, "%4x %9s %30s %s\n", item->tag, ExifFormatList[item->format].short_name,
- tag, text);
- g_free(tag);
- }
- g_free(text);
-}
-
-void exif_write_data_list(ExifData *exif, FILE *f, gint human_readable_list)
-{
- if (!f || !exif) return;
-
- fprintf(f, " tag format key value\n");
- fprintf(f, "----------------------------------------------------\n");
-
- if (human_readable_list)
- {
- gint i;
-
- i = 0;
- while (ExifFormattedList[i].key)
- {
- gchar *text;
-
- text = exif_get_formatted_by_key(exif, ExifFormattedList[i].key, NULL);
- if (text)
- {
- fprintf(f, " %9s %30s %s\n", "string", ExifFormattedList[i].key, text);
- }
- i++;
- }
- }
- else
- {
- GList *work;
-
- work = exif->items;
- while (work)
- {
- ExifItem *item;
-
- item = work->data;
- work = work->next;
-
- exif_write_item(f, item);
- }
- }
- fprintf(f, "----------------------------------------------------\n");
-}
-
-int exif_write(ExifData *exif)
-{
- printf("Not compiled with EXIF write support");
- return 0;
-}
-
-ExifItem *exif_add_item(ExifData *exif, const gchar *key)
-{
- return NULL;
-}
-
-int exif_item_delete(ExifData *exif, ExifItem *item)
-{
- return 0;
-}
-
-int exif_item_set_string(ExifItem *item, const char *str)
-{
- return 0;
-}
-
-
-
-#endif
-/* not HAVE_EXIV2 */
projects / geeqie.git / blobdiff