+++ /dev/null
-/*
- * Copyright (C) 2006 John Ellis
- * Copyright (C) 2008 - 2016 The Geeqie Team
- *
- * 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.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#define _XOPEN_SOURCE
-
-#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>
-
-#ifdef HAVE_LCMS
-/*** color support enabled ***/
-
-#ifdef HAVE_LCMS2
-#include <lcms2.h>
-#else
-#include <lcms.h>
-#endif
-#endif
-
-#include <glib.h>
-
-#include "intl.h"
-
-#include "main.h"
-#include "exif.h"
-
-#include "filedata.h"
-#include "filefilter.h"
-#include "filecache.h"
-#include "format_raw.h"
-#include "ui_fileops.h"
-#include "cache.h"
-#include "jpeg_parser.h"
-#include "misc.h"
-#include "zonedetect.h"
-
-
-static gdouble exif_rational_to_double(ExifRational *r, gint sign)
-{
- if (!r || r->den == 0.0) return 0.0;
-
- if (sign) return (gdouble)((gint)r->num) / (gdouble)((gint)r->den);
- return (gdouble)r->num / r->den;
-}
-
-static gdouble exif_get_rational_as_double(ExifData *exif, const gchar *key)
-{
- ExifRational *r;
- gint sign;
-
- r = exif_get_rational(exif, key, &sign);
- return exif_rational_to_double(r, sign);
-}
-
-static GString *append_comma_text(GString *string, const gchar *text)
-{
- string = g_string_append(string, ", ");
- string = g_string_append(string, text);
-
- return string;
-}
-
-static gchar *remove_common_prefix(gchar *s, gchar *t)
-{
- gint i;
-
- if (!s || !t) return t;
-
- for (i = 0; s[i] && t[i] && s[i] == t[i]; i++)
- ;
- if (!i)
- return t;
- if (s[i-1] == ' ' || !s[i])
- {
- while (t[i] == ' ')
- i++;
- return t + i;
- }
- return s;
-}
-
-static gdouble get_crop_factor(ExifData *exif)
-{
- gdouble res_unit_tbl[] = {0.0, 25.4, 25.4, 10.0, 1.0, 0.001 };
- gdouble xres = exif_get_rational_as_double(exif, "Exif.Photo.FocalPlaneXResolution");
- gdouble yres = exif_get_rational_as_double(exif, "Exif.Photo.FocalPlaneYResolution");
- gint res_unit;
- gint w, h;
- gdouble xsize, ysize, size, ratio;
-
- if (xres == 0.0 || yres == 0.0) return 0.0;
-
- if (!exif_get_integer(exif, "Exif.Photo.FocalPlaneResolutionUnit", &res_unit)) return 0.0;
- if (res_unit < 1 || res_unit > 5) return 0.0;
-
- if (!exif_get_integer(exif, "Exif.Photo.PixelXDimension", &w)) return 0.0;
- if (!exif_get_integer(exif, "Exif.Photo.PixelYDimension", &h)) return 0.0;
-
- xsize = w * res_unit_tbl[res_unit] / xres;
- ysize = h * res_unit_tbl[res_unit] / yres;
-
- ratio = xsize / ysize;
-
- if (ratio < 0.5 || ratio > 2.0) return 0.0; /* reasonable ratio */
-
- size = sqrt(xsize * xsize + ysize * ysize);
-
- if (size < 1.0 || size > 100.0) return 0.0; /* reasonable sensor size in mm */
-
- return sqrt(36*36+24*24) / size;
-
-}
-
-static gboolean remove_suffix(gchar *str, const gchar *suffix, gint suffix_len)
-{
- gint str_len = strlen(str);
-
- if (suffix_len < 0) suffix_len = strlen(suffix);
- if (str_len < suffix_len) return FALSE;
-
- if (strcmp(str + str_len - suffix_len, suffix) != 0) return FALSE;
- str[str_len - suffix_len] = '\0';
-
- return TRUE;
-}
-
-static gchar *exif_build_formatted_Camera(ExifData *exif)
-{
- gchar *text;
- gchar *make = exif_get_data_as_text(exif, "Exif.Image.Make");
- gchar *model = exif_get_data_as_text(exif, "Exif.Image.Model");
- gchar *software = exif_get_data_as_text(exif, "Exif.Image.Software");
- gchar *model2;
- gchar *software2;
-
- if (make)
- {
- g_strstrip(make);
-
- if (remove_suffix(make, " CORPORATION", 12)) { /* Nikon */ }
- else if (remove_suffix(make, " Corporation", 12)) { /* Pentax */ }
- else if (remove_suffix(make, " OPTICAL CO.,LTD", 16)) { /* OLYMPUS */ };
- }
-
- if (model)
- g_strstrip(model);
-
- if (software)
- {
- gint i, j;
-
- g_strstrip(software);
-
- /* remove superfluous spaces (pentax K100D) */
- for (i = 0, j = 0; software[i]; i++, j++)
- {
- if (software[i] == ' ' && software[i + 1] == ' ')
- i++;
- if (i != j) software[j] = software[i];
- }
- software[j] = '\0';
- }
-
- model2 = remove_common_prefix(make, model);
- software2 = remove_common_prefix(model2, software);
-
- text = g_strdup_printf("%s%s%s%s%s%s", (make) ? make : "", (make && model2) ? " " : "",
- (model2) ? model2 : "",
- (software2 && (make || model2)) ? " (" : "",
- (software2) ? software2 : "",
- (software2 && (make || model2)) ? ")" : "");
-
- g_free(make);
- g_free(model);
- g_free(software);
- return text;
-}
-
-static gchar *exif_build_formatted_DateTime(ExifData *exif)
-{
- gchar *text = exif_get_data_as_text(exif, "Exif.Photo.DateTimeOriginal");
- gchar *subsec = NULL;
- gchar buf[128];
- gchar *tmp;
- gint buflen;
- struct tm tm;
- GError *error = NULL;
-
- if (text)
- {
- subsec = exif_get_data_as_text(exif, "Exif.Photo.SubSecTimeOriginal");
- }
- else
- {
- text = exif_get_data_as_text(exif, "Exif.Image.DateTime");
- if (text) subsec = exif_get_data_as_text(exif, "Exif.Photo.SubSecTime");
- }
-
- /* Convert the stuff into a tm struct */
- memset(&tm, 0, sizeof(tm)); /* Uh, strptime could let garbage in tm! */
- if (text && strptime(text, "%Y:%m:%d %H:%M:%S", &tm))
- {
- buflen = strftime(buf, sizeof(buf), "%x %X", &tm);
- if (buflen > 0)
- {
- tmp = g_locale_to_utf8(buf, buflen, NULL, NULL, &error);
- if (error)
- {
- log_printf("Error converting locale strftime to UTF-8: %s\n", error->message);
- g_error_free(error);
- }
- else
- {
- g_free(text);
- text = g_strdup(tmp);
- }
- }
- }
-
- if (subsec)
- {
- tmp = text;
- text = g_strconcat(tmp, ".", subsec, NULL);
- g_free(tmp);
- g_free(subsec);
- }
- return text;
-}
-
-static gchar *exif_build_formatted_DateTimeDigitized(ExifData *exif)
-{
- gchar *text = exif_get_data_as_text(exif, "Exif.Photo.DateTimeDigitized");
- gchar *subsec = NULL;
- gchar buf[128];
- gchar *tmp;
- gint buflen;
- struct tm tm;
- GError *error = NULL;
-
- if (text)
- {
- subsec = exif_get_data_as_text(exif, "Exif.Photo.SubSecTimeDigitized");
- }
- else
- {
- text = exif_get_data_as_text(exif, "Exif.Image.DateTime");
- if (text) subsec = exif_get_data_as_text(exif, "Exif.Photo.SubSecTime");
- }
-
- /* Convert the stuff into a tm struct */
- memset(&tm, 0, sizeof(tm)); /* Uh, strptime could let garbage in tm! */
- if (text && strptime(text, "%Y:%m:%d %H:%M:%S", &tm))
- {
- buflen = strftime(buf, sizeof(buf), "%x %X", &tm);
- if (buflen > 0)
- {
- tmp = g_locale_to_utf8(buf, buflen, NULL, NULL, &error);
- if (error)
- {
- log_printf("Error converting locale strftime to UTF-8: %s\n", error->message);
- g_error_free(error);
- }
- else
- {
- g_free(text);
- text = g_strdup(tmp);
- }
- }
- }
-
- if (subsec)
- {
- tmp = text;
- text = g_strconcat(tmp, ".", subsec, NULL);
- g_free(tmp);
- g_free(subsec);
- }
- return text;
-}
-
-static gchar *exif_build_formatted_ShutterSpeed(ExifData *exif)
-{
- ExifRational *r;
-
- r = exif_get_rational(exif, "Exif.Photo.ExposureTime", NULL);
- if (r && r->num && r->den)
- {
- gdouble n = (gdouble)r->den / (gdouble)r->num;
- return g_strdup_printf("%s%.0fs", n > 1.0 ? "1/" : "",
- n > 1.0 ? n : 1.0 / n);
- }
- r = exif_get_rational(exif, "Exif.Photo.ShutterSpeedValue", NULL);
- if (r && r->num && r->den)
- {
- gdouble n = pow(2.0, exif_rational_to_double(r, TRUE));
-
- /* Correct exposure time to avoid values like 1/91s (seen on Minolta DImage 7) */
- if (n > 1.0 && (gint)n - ((gint)(n/10))*10 == 1) n--;
-
- return g_strdup_printf("%s%.0fs", n > 1.0 ? "1/" : "",
- n > 1.0 ? floor(n) : 1.0 / n);
- }
- return NULL;
-}
-
-static gchar *exif_build_formatted_Aperture(ExifData *exif)
-{
- gdouble n;
-
- n = exif_get_rational_as_double(exif, "Exif.Photo.FNumber");
- if (n == 0.0) n = exif_get_rational_as_double(exif, "Exif.Photo.ApertureValue");
- if (n == 0.0) return NULL;
-
- return g_strdup_printf("f/%.1f", n);
-}
-
-static gchar *exif_build_formatted_ExposureBias(ExifData *exif)
-{
- ExifRational *r;
- gint sign;
- gdouble n;
-
- r = exif_get_rational(exif, "Exif.Photo.ExposureBiasValue", &sign);
- if (!r) return NULL;
-
- n = exif_rational_to_double(r, sign);
- return g_strdup_printf("%+.1f", n);
-}
-
-static gchar *exif_build_formatted_FocalLength(ExifData *exif)
-{
- gdouble n;
-
- n = exif_get_rational_as_double(exif, "Exif.Photo.FocalLength");
- if (n == 0.0) return NULL;
- return g_strdup_printf("%.0f mm", n);
-}
-
-static gchar *exif_build_formatted_FocalLength35mmFilm(ExifData *exif)
-{
- gint n;
- gdouble f, c;
-
- if (exif_get_integer(exif, "Exif.Photo.FocalLengthIn35mmFilm", &n) && n != 0)
- {
- return g_strdup_printf("%d mm", n);
- }
-
- f = exif_get_rational_as_double(exif, "Exif.Photo.FocalLength");
- if (f == 0.0) return NULL;
-
- c = get_crop_factor(exif);
- if (c == 0.0) return NULL;
-
- return g_strdup_printf("%.0f mm", f * c);
-}
-
-static gchar *exif_build_formatted_ISOSpeedRating(ExifData *exif)
-{
- gchar *text;
-
- text = exif_get_data_as_text(exif, "Exif.Photo.ISOSpeedRatings");
- /* old canon may set this instead */
- if (!text) text = exif_get_data_as_text(exif, "Exif.CanonSi.ISOSpeed");
- /* kodak may set this instead */
- if (!text) text = exif_get_data_as_text(exif, "Exif.Photo.ExposureIndex");
- return text;
-}
-
-static gchar *exif_build_formatted_SubjectDistance(ExifData *exif)
-{
- ExifRational *r;
- gint sign;
- gdouble n;
-
- r = exif_get_rational(exif, "Exif.Photo.SubjectDistance", &sign);
- if (!r) return NULL;
-
- if ((glong)r->num == (glong)0xffffffff) return g_strdup(_("infinity"));
- if ((glong)r->num == 0) return g_strdup(_("unknown"));
-
- n = exif_rational_to_double(r, sign);
- if (n == 0.0) return _("unknown");
- return g_strdup_printf("%.3f m", n);
-}
-
-static gchar *exif_build_formatted_Flash(ExifData *exif)
-{
- /* grr, flash is a bitmask... */
- GString *string;
- gchar *text;
- gint n;
- gint v;
-
- if (!exif_get_integer(exif, "Exif.Photo.Flash", &n)) return NULL;
-
- /* Exif 2.1 only defines first 3 bits */
- if (n <= 0x07) return exif_get_data_as_text(exif, "Exif.Photo.Flash");
-
- /* must be Exif 2.2 */
- string = g_string_new("");
-
- /* flash fired (bit 0) */
- string = g_string_append(string, (n & 0x01) ? _("yes") : _("no"));
-
- /* flash mode (bits 3, 4) */
- v = (n >> 3) & 0x03;
- if (v) string = append_comma_text(string, _("mode:"));
- switch (v)
- {
- case 1:
- string = g_string_append(string, _("on"));
- break;
- case 2:
- string = g_string_append(string, _("off"));
- break;
- case 3:
- string = g_string_append(string, _("auto"));
- break;
- }
-
- /* return light (bits 1, 2) */
- v = (n >> 1) & 0x03;
- if (v == 2) string = append_comma_text(string, _("not detected by strobe"));
- if (v == 3) string = append_comma_text(string, _("detected by strobe"));
-
- /* we ignore flash function (bit 5) */
-
- /* red-eye (bit 6) */
- if ((n >> 5) & 0x01) string = append_comma_text(string, _("red-eye reduction"));
-
- text = string->str;
- g_string_free(string, FALSE);
- return text;
-}
-
-static gchar *exif_build_formatted_Resolution(ExifData *exif)
-{
- ExifRational *rx, *ry;
- gchar *units;
- gchar *text;
-
- rx = exif_get_rational(exif, "Exif.Image.XResolution", NULL);
- ry = exif_get_rational(exif, "Exif.Image.YResolution", NULL);
- if (!rx || !ry) return NULL;
-
- units = exif_get_data_as_text(exif, "Exif.Image.ResolutionUnit");
- text = g_strdup_printf("%0.f x %0.f (%s/%s)", rx->den ? (gdouble)rx->num / rx->den : 1.0,
- ry->den ? (gdouble)ry->num / ry->den : 1.0,
- _("dot"), (units) ? units : _("unknown"));
-
- g_free(units);
- return text;
-}
-
-static gchar *exif_build_formatted_ColorProfile(ExifData *exif)
-{
-#ifdef HAVE_LCMS2
- cmsUInt8Number profileID[17];
-#endif
- const gchar *name = "";
- const gchar *source = "";
- guchar *profile_data;
- guint profile_len;
-
- profile_data = exif_get_color_profile(exif, &profile_len);
- if (!profile_data)
- {
- gint cs;
- gchar *interop_index;
-
- /* ColorSpace == 1 specifies sRGB per EXIF 2.2 */
- if (!exif_get_integer(exif, "Exif.Photo.ColorSpace", &cs)) cs = 0;
- interop_index = exif_get_data_as_text(exif, "Exif.Iop.InteroperabilityIndex");
-
- if (cs == 1)
- {
- name = _("sRGB");
- source = "ColorSpace";
- }
- else if (cs == 2 || (interop_index && !strcmp(interop_index, "R03")))
- {
- name = _("AdobeRGB");
- source = (cs == 2) ? "ColorSpace" : "Iop";
- }
-
- g_free(interop_index);
- }
- else
- {
- source = _("embedded");
-#ifdef HAVE_LCMS
-
- {
- cmsHPROFILE profile;
-
- profile = cmsOpenProfileFromMem(profile_data, profile_len);
- if (profile)
- {
-#ifdef HAVE_LCMS2
- profileID[16] = '\0';
- cmsGetHeaderProfileID(profile, profileID);
- name = (gchar *) profileID;
-#else
- name = (gchar *) cmsTakeProductName(profile);
-#endif
- cmsCloseProfile(profile);
- }
- g_free(profile_data);
- }
-#endif
- }
- if (name[0] == 0 && source[0] == 0) return NULL;
- return g_strdup_printf("%s (%s)", name, source);
-}
-
-static gchar *exif_build_formatted_GPSPosition(ExifData *exif)
-{
- GString *string;
- gchar *text, *ref;
- ExifRational *value;
- ExifItem *item;
- guint i;
- gdouble p, p3;
- gulong p1, p2;
-
- string = g_string_new("");
-
- item = exif_get_item(exif, "Exif.GPSInfo.GPSLatitude");
- ref = exif_get_data_as_text(exif, "Exif.GPSInfo.GPSLatitudeRef");
- if (item && ref)
- {
- p = 0;
- for (i = 0; i < exif_item_get_elements(item); i++)
- {
- value = exif_item_get_rational(item, NULL, i);
- if (value && value->num && value->den)
- p += (gdouble)value->num / (gdouble)value->den / pow(60.0, (gdouble)i);
- }
- p1 = (gint)p;
- p2 = (gint)((p - p1)*60);
- p3 = ((p - p1)*60 - p2)*60;
-
- g_string_append_printf(string, "%0lu° %0lu' %0.2f\" %.1s", p1, p2, p3, ref);
- } // if (item && ref)
-
- item = exif_get_item(exif, "Exif.GPSInfo.GPSLongitude");
- ref = exif_get_data_as_text(exif, "Exif.GPSInfo.GPSLongitudeRef");
- if (item && ref)
- {
- p = 0;
- for (i = 0; i < exif_item_get_elements(item); i++)
- {
- value = exif_item_get_rational(item, NULL, i);
- if (value && value->num && value->den)
- p += (gdouble)value->num / (gdouble)value->den / pow(60.0, (gdouble)i);
- }
- p1 = (gint)p;
- p2 = (gint)((p - p1)*60);
- p3 = ((p - p1)*60 - p2)*60;
-
- g_string_append_printf(string, ", %0lu° %0lu' %0.2f\" %.1s", p1, p2, p3, ref);
- } // if (item && ref)
-
- text = string->str;
- g_string_free(string, FALSE);
-
- return text;
-} // static gchar *exif_build_forma...
-
-static gchar *exif_build_formatted_GPSAltitude(ExifData *exif)
-{
- ExifRational *r;
- ExifItem *item;
- gdouble alt;
- gint ref;
-
- item = exif_get_item(exif, "Exif.GPSInfo.GPSAltitudeRef");
- r = exif_get_rational(exif, "Exif.GPSInfo.GPSAltitude", NULL);
-
- if (!r || !item) return NULL;
-
- alt = exif_rational_to_double(r, 0);
- exif_item_get_integer(item, &ref);
-
- return g_strdup_printf("%0.f m %s", alt, (ref==0)?_("Above Sea Level"):_("Below Sea Level"));
-}
-
-/**
- * @brief Extracts timezone from a ZoneDetect search structure
- * @param results ZoneDetect search structure
- * @returns Timezone in the form "Europe/London"
- *
- * Refer to https://github.com/BertoldVdb/ZoneDetect
- * for structure details
- */
-static gchar *zd_tz(ZoneDetectResult* results)
-{
- gchar *timezone = NULL;
- gchar *timezone_pre = NULL;
- gchar *timezone_id = NULL;
- unsigned int index = 0;
-
- if (!results)
- {
- return NULL;
- }
-
- while(results[index].lookupResult != ZD_LOOKUP_END)
- {
- if(results[index].data)
- {
- for(unsigned int i=0; i<results[index].numFields; i++)
- {
- if (g_strstr_len(results[index].fieldNames[i], -1, "TimezoneIdPrefix"))
- {
- timezone_pre = g_strdup(results[index].data[i]);
- }
- if (g_strstr_len(results[index].fieldNames[i], -1, "TimezoneId"))
- {
- timezone_id = g_strdup(results[index].data[i]);
- }
- }
- }
- index++;
- }
-
- timezone = g_strconcat(timezone_pre, timezone_id, NULL);
- g_free(timezone_pre);
- g_free(timezone_id);
- return timezone;
-}
-
-/**
- * @brief Creates local time from GPS lat/long
- * @param exif
- * @returns Localised time and date
- *
- * GPS lat/long is translated to timezone using ZoneDetect.
- * GPS UTC is converted to Unix time stamp (seconds since 1970).
- * The TZ environment variable is set to the relevant timezone
- * and the Unix timestamp converted to local time using locale.
- * If the conversion fails, unformatted UTC is returned.
- */
-static gchar *exif_build_formatted_localtime(ExifData *exif)
-{
- gfloat latitude;
- gfloat longitude;
- gchar *text_latitude;
- gchar *text_longitude;
- gchar *text_latitude_ref;
- gchar *text_longitude_ref;
- gchar *text_date;
- gchar *text_time;
- gchar *text_date_time = NULL;
- gchar buf[128];
- gchar *tmp;
- gint buflen;
- GError *error = NULL;
- gchar *lat_deg;
- gchar *lat_min;
- gchar *lon_deg;
- gchar *lon_min;
- gchar *time_zone;
- gchar *time_zone_org;
- struct tm *tm_local;
- struct tm tm_utc;
- time_t stamp;
- gchar *zd_path;
- gchar *zone_selected;
- ZoneDetect *cd;
- ZoneDetectResult *results;
-
- text_latitude = exif_get_data_as_text(exif, "Exif.GPSInfo.GPSLatitude");
- text_longitude = exif_get_data_as_text(exif, "Exif.GPSInfo.GPSLongitude");
- text_latitude_ref = exif_get_data_as_text(exif, "Exif.GPSInfo.GPSLatitudeRef");
- text_longitude_ref = exif_get_data_as_text(exif, "Exif.GPSInfo.GPSLongitudeRef");
- text_date = exif_get_data_as_text(exif, "Exif.GPSInfo.GPSDateStamp");
- text_time = exif_get_data_as_text(exif, "Exif.GPSInfo.GPSTimeStamp");
-
- if (text_latitude && text_longitude && text_latitude_ref &&
- text_longitude_ref && text_date && text_time)
- {
- text_date_time = g_strconcat(text_date, ":", text_time, NULL);
-
- lat_deg = strtok(text_latitude, "deg'");
- lat_min = strtok(NULL, "deg'");
- latitude = atof(lat_deg) + atof(lat_min) / 60;
- if (!g_strcmp0(text_latitude_ref, "South"))
- {
- latitude = -latitude;
- }
- lon_deg = strtok(text_longitude, "deg'");
- lon_min = strtok(NULL, "deg'");
- longitude = atof(lon_deg) + atof(lon_min) / 60;
- if (!g_strcmp0(text_longitude_ref, "West"))
- {
- longitude = -longitude;
- }
-
- zd_path = g_build_filename(GQ_BIN_DIR, TIMEZONE_DATABASE, NULL);
- cd = ZDOpenDatabase(zd_path);
- if (cd)
- {
- results = ZDLookup(cd, latitude, longitude, NULL);
- zone_selected = zd_tz(results);
- time_zone = g_strconcat("TZ=", zone_selected, NULL);
- time_zone_org = g_strconcat("TZ=", getenv("TZ"), NULL);
- putenv("TZ=UTC");
- g_free(zone_selected);
-
- memset(&tm_utc, 0, sizeof(tm_utc));
- if (text_date_time && strptime(text_date_time, "%Y:%m:%d:%H:%M:%S", &tm_utc))
- {
- stamp = mktime(&tm_utc); // Convert the struct to a Unix timestamp
- putenv(time_zone); // Switch to destination time zone
-
- tm_local = localtime(&stamp);
-
- /* Convert to localtime using locale */
- buflen = strftime(buf, sizeof(buf), "%x %X", tm_local);
- if (buflen > 0)
- {
- tmp = g_locale_to_utf8(buf, buflen, NULL, NULL, &error);
- if (error)
- {
- log_printf("Error converting locale strftime to UTF-8: %s\n", error->message);
- g_error_free(error);
- }
- else
- {
- g_free(text_date_time);
- text_date_time = g_strdup(tmp);
- }
- }
- g_free(tmp);
- }
- putenv(time_zone_org);
-
- g_free(time_zone);
- g_free(time_zone_org);
- }
- else
- {
- log_printf("Error: Init of timezone database %s failed\n", zd_path);
- }
- ZDCloseDatabase(cd);
- g_free(zd_path);
- }
-
- g_free(text_latitude);
- g_free(text_longitude);
- g_free(text_latitude_ref);
- g_free(text_longitude_ref);
- g_free(text_date);
- g_free(text_time);
-
- return text_date_time;
-}
-
-/**
- * @brief Gets timezone from GPS lat/long
- * @param exif
- * @returns Timezone string in the form "Europe/London"
- *
- *
- */
-static gchar *exif_build_formatted_timezone(ExifData *exif)
-{
- gfloat latitude;
- gfloat longitude;
- gchar *text_latitude;
- gchar *text_longitude;
- gchar *text_latitude_ref;
- gchar *text_longitude_ref;
- gchar *lat_deg;
- gchar *lat_min;
- gchar *lon_deg;
- gchar *lon_min;
- gchar *time_zone = NULL;
- gchar *zd_path;
- ZoneDetect *cd;
- ZoneDetectResult *results;
-
- text_latitude = exif_get_data_as_text(exif, "Exif.GPSInfo.GPSLatitude");
- text_longitude = exif_get_data_as_text(exif, "Exif.GPSInfo.GPSLongitude");
- text_latitude_ref = exif_get_data_as_text(exif, "Exif.GPSInfo.GPSLatitudeRef");
- text_longitude_ref = exif_get_data_as_text(exif, "Exif.GPSInfo.GPSLongitudeRef");
-
- if ((text_latitude && g_strrstr(text_latitude, "deg")) &&
- (text_longitude && g_strrstr(text_longitude, "deg")) &&
- (
- (text_latitude_ref && g_strrstr(text_latitude_ref, "N")) ||
- (text_latitude_ref && g_strrstr(text_latitude_ref, "S"))
- ) &&
- (
- (text_longitude_ref && g_strrstr(text_longitude_ref, "E")) ||
- (text_longitude_ref && g_strrstr(text_longitude_ref, "W"))
- )
- )
- {
- lat_deg = strtok(text_latitude, "deg'");
- lat_min = strtok(NULL, "deg'");
- latitude = atof(lat_deg) + atof(lat_min) / 60;
- if (g_strcmp0(text_latitude_ref, "South") == 0)
- {
- latitude = -latitude;
- }
- lon_deg = strtok(text_longitude, "deg'");
- lon_min = strtok(NULL, "deg'");
- longitude = atof(lon_deg) + atof(lon_min) / 60;
- if (g_strcmp0(text_longitude_ref, "West") == 0)
- {
- longitude = -longitude;
- }
- zd_path = g_build_filename(GQ_BIN_DIR, TIMEZONE_DATABASE, NULL);
- cd = ZDOpenDatabase(zd_path);
- if (cd)
- {
- results = ZDLookup(cd, latitude, longitude, NULL);
- time_zone = zd_tz(results);
- ZDFreeResults(results);
- }
- else
- {
- log_printf("Error: Init of timezone database %s failed\n", zd_path);
- }
- ZDCloseDatabase(cd);
- g_free(zd_path);
- }
-
- g_free(text_latitude);
- g_free(text_longitude);
- g_free(text_latitude_ref);
- g_free(text_longitude_ref);
-
- return time_zone;
-}
-
-static gchar *exif_build_formatted_star_rating(ExifData *exif)
-{
- gint n;
-
- exif_get_integer(exif, "Xmp.xmp.Rating", &n);
-
- return convert_rating_to_stars(n);
-}
-
-/* List of custom formatted pseudo-exif tags */
-#define EXIF_FORMATTED_TAG(name, label) { EXIF_FORMATTED()#name, label, exif_build_formatted##_##name }
-
-ExifFormattedText ExifFormattedList[] = {
- EXIF_FORMATTED_TAG(Camera, N_("Camera")),
- EXIF_FORMATTED_TAG(DateTime, N_("Date")),
- EXIF_FORMATTED_TAG(DateTimeDigitized, N_("DateDigitized")),
- EXIF_FORMATTED_TAG(ShutterSpeed, N_("Shutter speed")),
- EXIF_FORMATTED_TAG(Aperture, N_("Aperture")),
- EXIF_FORMATTED_TAG(ExposureBias, N_("Exposure bias")),
- EXIF_FORMATTED_TAG(ISOSpeedRating, N_("ISO sensitivity")),
- EXIF_FORMATTED_TAG(FocalLength, N_("Focal length")),
- EXIF_FORMATTED_TAG(FocalLength35mmFilm, N_("Focal length 35mm")),
- EXIF_FORMATTED_TAG(SubjectDistance, N_("Subject distance")),
- EXIF_FORMATTED_TAG(Flash, N_("Flash")),
- EXIF_FORMATTED_TAG(Resolution, N_("Resolution")),
- EXIF_FORMATTED_TAG(ColorProfile, N_("Color profile")),
- EXIF_FORMATTED_TAG(GPSPosition, N_("GPS position")),
- EXIF_FORMATTED_TAG(GPSAltitude, N_("GPS altitude")),
- EXIF_FORMATTED_TAG(localtime, N_("Local time")),
- EXIF_FORMATTED_TAG(timezone, N_("Time zone")),
- EXIF_FORMATTED_TAG(star_rating, N_("Star rating")),
- {"file.size", N_("File size"), NULL},
- {"file.date", N_("File date"), NULL},
- {"file.mode", N_("File mode"), NULL},
- {"file.ctime", N_("File ctime"), NULL},
- {"file.owner", N_("File owner"), NULL},
- {"file.group", N_("File group"), NULL},
- {"file.link", N_("File link"), NULL},
- {"file.class", N_("File class"), NULL},
- { NULL, NULL, NULL }
-};
-
-gchar *exif_get_formatted_by_key(ExifData *exif, const gchar *key, gboolean *key_valid)
-{
- if (strncmp(key, EXIF_FORMATTED(), EXIF_FORMATTED_LEN) == 0)
- {
- gint i;
-
- if (key_valid) *key_valid = TRUE;
-
- key += EXIF_FORMATTED_LEN;
- for (i = 0; ExifFormattedList[i].key; i++)
- if (ExifFormattedList[i].build_func && strcmp(key, ExifFormattedList[i].key + EXIF_FORMATTED_LEN) == 0)
- return ExifFormattedList[i].build_func(exif);
- }
-
- if (key_valid) *key_valid = FALSE;
- return NULL;
-}
-
-gchar *exif_get_description_by_key(const gchar *key)
-{
- if (!key) return NULL;
-
- if (strncmp(key, EXIF_FORMATTED(), EXIF_FORMATTED_LEN) == 0 ||
- strncmp(key, "file.", 5) == 0)
- {
- gint i;
-
- for (i = 0; ExifFormattedList[i].key; i++)
- if (strcmp(key, ExifFormattedList[i].key) == 0)
- return g_strdup(_(ExifFormattedList[i].description));
- }
-
- return exif_get_tag_description_by_key(key);
-}
-
-gint exif_get_integer(ExifData *exif, const gchar *key, gint *value)
-{
- ExifItem *item;
-
- item = exif_get_item(exif, key);
- return exif_item_get_integer(item, value);
-}
-
-ExifRational *exif_get_rational(ExifData *exif, const gchar *key, gint *sign)
-{
- ExifItem *item;
-
- item = exif_get_item(exif, key);
- return exif_item_get_rational(item, sign, 0);
-}
-
-gchar *exif_get_data_as_text(ExifData *exif, const gchar *key)
-{
- ExifItem *item;
- gchar *text;
- gboolean key_valid;
-
- if (!key) return NULL;
-
- text = exif_get_formatted_by_key(exif, key, &key_valid);
- if (key_valid) return text;
-
- item = exif_get_item(exif, key);
- if (item) return exif_item_get_data_as_text(item);
-
- return NULL;
-}
-
-
-static FileCacheData *exif_cache;
-
-void exif_release_cb(FileData *fd)
-{
- exif_free(fd->exif);
- fd->exif = NULL;
-}
-
-void exif_init_cache(void)
-{
- g_assert(!exif_cache);
- exif_cache = file_cache_new(exif_release_cb, 4);
-}
-
-ExifData *exif_read_fd(FileData *fd)
-{
- gchar *sidecar_path;
-
- if (!exif_cache) exif_init_cache();
-
- if (!fd) return NULL;
-
- if (file_cache_get(exif_cache, fd)) return fd->exif;
- g_assert(fd->exif == NULL);
-
- /* CACHE_TYPE_XMP_METADATA file should exist only if the metadata are
- * not writable directly, thus it should contain the most up-to-date version */
- sidecar_path = NULL;
-
-#ifdef HAVE_EXIV2
- /* we are not able to handle XMP sidecars without exiv2 */
- sidecar_path = cache_find_location(CACHE_TYPE_XMP_METADATA, fd->path);
-
- if (!sidecar_path) sidecar_path = file_data_get_sidecar_path(fd, TRUE);
-#endif
-
- fd->exif = exif_read(fd->path, sidecar_path, fd->modified_xmp);
-
- g_free(sidecar_path);
- file_cache_put(exif_cache, fd, 1);
- return fd->exif;
-}
-
-
-void exif_free_fd(FileData *fd, ExifData *exif)
-{
- if (!fd) return;
- g_assert(fd->exif == exif);
-}
-
-/* embedded icc in jpeg */
-
-gboolean exif_jpeg_parse_color(ExifData *exif, guchar *data, guint size)
-{
- guint seg_offset = 0;
- guint seg_length = 0;
- guint chunk_offset[255];
- guint chunk_length[255];
- guint chunk_count = 0;
-
- /* For jpeg/jfif, ICC color profile data can be in more than one segment.
- the data is in APP2 data segments that start with "ICC_PROFILE\x00\xNN\xTT"
- NN = segment number for data
- TT = total number of ICC segments (TT in each ICC segment should match)
- */
-
- while (jpeg_segment_find(data + seg_offset + seg_length,
- size - seg_offset - seg_length,
- JPEG_MARKER_APP2,
- "ICC_PROFILE\x00", 12,
- &seg_offset, &seg_length))
- {
- guchar chunk_num;
- guchar chunk_tot;
-
- if (seg_length < 14) return FALSE;
-
- chunk_num = data[seg_offset + 12];
- chunk_tot = data[seg_offset + 13];
-
- if (chunk_num == 0 || chunk_tot == 0) return FALSE;
-
- if (chunk_count == 0)
- {
- guint i;
-
- chunk_count = (guint)chunk_tot;
- for (i = 0; i < chunk_count; i++) chunk_offset[i] = 0;
- for (i = 0; i < chunk_count; i++) chunk_length[i] = 0;
- }
-
- if (chunk_tot != chunk_count ||
- chunk_num > chunk_count) return FALSE;
-
- chunk_num--;
- chunk_offset[chunk_num] = seg_offset + 14;
- chunk_length[chunk_num] = seg_length - 14;
- }
-
- if (chunk_count > 0)
- {
- guchar *cp_data;
- guint cp_length = 0;
- guint i;
-
- for (i = 0; i < chunk_count; i++) cp_length += chunk_length[i];
- cp_data = g_malloc(cp_length);
-
- for (i = 0; i < chunk_count; i++)
- {
- if (chunk_offset[i] == 0)
- {
- /* error, we never saw this chunk */
- g_free(cp_data);
- return FALSE;
- }
- memcpy(cp_data, data + chunk_offset[i], chunk_length[i]);
- }
- DEBUG_1("Found embedded icc profile in jpeg");
- exif_add_jpeg_color_profile(exif, cp_data, cp_length);
-
- return TRUE;
- }
-
- return FALSE;
-}
-
-/*
- *-------------------------------------------------------------------
- * file info
- * it is here because it shares tag neming infrastructure with exif
- * we should probably not invest too much effort into this because
- * new exiv2 will support the same functionality
- * http://dev.exiv2.org/issues/show/505
- *-------------------------------------------------------------------
- */
-
-static gchar *mode_number(mode_t m)
-{
- gint mb, mu, mg, mo;
- gchar pbuf[12];
-
- mb = mu = mg = mo = 0;
-
- if (m & S_ISUID) mb |= 4;
- if (m & S_ISGID) mb |= 2;
- if (m & S_ISVTX) mb |= 1;
-
- if (m & S_IRUSR) mu |= 4;
- if (m & S_IWUSR) mu |= 2;
- if (m & S_IXUSR) mu |= 1;
-
- if (m & S_IRGRP) mg |= 4;
- if (m & S_IWGRP) mg |= 2;
- if (m & S_IXGRP) mg |= 1;
-
- if (m & S_IROTH) mo |= 4;
- if (m & S_IWOTH) mo |= 2;
- if (m & S_IXOTH) mo |= 1;
-
- pbuf[0] = (m & S_IRUSR) ? 'r' : '-';
- pbuf[1] = (m & S_IWUSR) ? 'w' : '-';
- pbuf[2] = (m & S_IXUSR) ? 'x' : '-';
- pbuf[3] = (m & S_IRGRP) ? 'r' : '-';
- pbuf[4] = (m & S_IWGRP) ? 'w' : '-';
- pbuf[5] = (m & S_IXGRP) ? 'x' : '-';
- pbuf[6] = (m & S_IROTH) ? 'r' : '-';
- pbuf[7] = (m & S_IWOTH) ? 'w' : '-';
- pbuf[8] = (m & S_IXOTH) ? 'x' : '-';
- pbuf[9] = '\0';
-
- return g_strdup_printf("%s (%d%d%d%d)", pbuf, mb, mu, mg, mo);
-}
-
-gchar *metadata_file_info(FileData *fd, const gchar *key, MetadataFormat format)
-{
- if (strcmp(key, "file.size") == 0)
- {
- return g_strdup_printf("%ld", (long)fd->size);
- }
- if (strcmp(key, "file.date") == 0)
- {
- return g_strdup(text_from_time(fd->date));
- }
- if (strcmp(key, "file.mode") == 0)
- {
- return mode_number(fd->mode);
- }
- if (strcmp(key, "file.ctime") == 0)
- {
- return g_strdup(text_from_time(fd->cdate));
- }
- if (strcmp(key, "file.class") == 0)
- {
- return g_strdup(format_class_list[fd->format_class]);
- }
- if (strcmp(key, "file.owner") == 0)
- {
- return g_strdup(fd->owner);
- }
- if (strcmp(key, "file.group") == 0)
- {
- return g_strdup(fd->group);
- }
- if (strcmp(key, "file.link") == 0)
- {
- return g_strdup(fd->sym_link);
- }
- return g_strdup("");
-}
-
-
-/* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */
projects / geeqie.git / blobdiff