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geotag.cpp

Reads GPX data and updates images with GPS Tags

// SPDX-License-Identifier: GPL-2.0-or-later
// Sample program to read gpx files and update images with GPS tags
#include <expat.h>
#include <exiv2/exiv2.hpp>
#include <sys/stat.h>
#include <sys/types.h>
#include <algorithm>
#include <iostream>
#if __has_include(<filesystem>)
#include <filesystem>
namespace fs = std::filesystem;
#else
#include <experimental/filesystem>
namespace fs = std::experimental::filesystem;
#endif
#ifdef _WIN32
#include <windows.h>
char* realpath(const char* file, char* path);
#define lstat stat
#if _MSC_VER < 1400
#define strcpy_s(d, l, s) strcpy(d, s)
#define strcat_s(d, l, s) strcat(d, s)
#endif
#endif
#if !defined(_MSC_VER)
#include <dirent.h>
#include <sys/param.h>
#include <unistd.h>
#define stricmp strcasecmp
#endif
#ifndef _MAX_PATH
#define _MAX_PATH 1024
#endif
// prototypes
class Options;
int getFileType(const char* path, Options& options);
int getFileType(std::string& path, Options& options);
std::string getExifTime(time_t t);
time_t parseTime(const char*, bool bAdjust = false);
int timeZoneAdjust();
// Command-line parser
class Options {
public:
bool verbose{false};
bool help{false};
bool version{false};
bool dst{false};
bool dryrun{false};
bool ascii{false};
Options() = default;
virtual ~Options() = default;
};
enum { resultOK = 0, resultSyntaxError, resultSelectFailed };
enum // keyword indices
{
kwHELP = 0,
kwVERSION,
kwDST,
kwDRYRUN,
kwASCII,
kwVERBOSE,
kwADJUST,
kwTZ,
kwDELTA,
kwMAX // manages keyword array
,
kwNEEDVALUE // bogus keywords for error reporting
,
kwSYNTAX // -- ditto --
,
kwNOVALUE = -kwVERBOSE // keywords <= kwNOVALUE are flags (no value needed)
};
// file types supported
enum {
typeUnknown = 0,
typeDirectory = 1,
typeImage = 2,
typeXML = 3,
typeFile = 4,
typeDoc = 5,
typeCode = 6,
typeMax = 7
};
// forward declaration
class Position;
// globals
using TimeDict_t = std::map<time_t, Position>;
using TimeDict_i = std::map<time_t, Position>::iterator;
using strings_t = std::vector<std::string>;
const char* gDeg = nullptr; // string "°" or "deg"
TimeDict_t gTimeDict;
strings_t gFiles;
// Position (from gpx file)
class Position {
public:
Position(time_t time, double lat, double lon, double ele) : time_(time), lon_(lon), lat_(lat), ele_(ele) {
}
Position() = default;
virtual ~Position() = default;
// instance methods
[[nodiscard]] bool good() const {
return time_ || lon_ || lat_ || ele_;
}
std::string getTimeString() {
if (times_.empty())
times_ = getExifTime(time_);
return times_;
}
[[nodiscard]] time_t getTime() const {
return time_;
}
[[nodiscard]] std::string toString() const;
// getters/setters
[[nodiscard]] double lat() const {
return lat_;
}
[[nodiscard]] double lon() const {
return lon_;
}
[[nodiscard]] double ele() const {
return ele_;
}
[[nodiscard]] int delta() const {
return delta_;
}
void delta(int delta) {
delta_ = delta;
}
// data
private:
time_t time_{0};
double lon_{0.0};
double lat_{0.0};
double ele_{0.0};
std::string times_;
int delta_{0};
// public static data
public:
static int adjust_;
static int tz_;
static int dst_;
static time_t deltaMax_;
// public static member functions
static int Adjust() {
return Position::adjust_ + Position::tz_ + Position::dst_;
}
static int tz() {
return tz_;
}
static int dst() {
return dst_;
}
static int adjust() {
return adjust_;
}
static std::string toExifString(double d, bool bRational, bool bLat);
static std::string toExifString(double d);
static std::string toExifTimeStamp(std::string& t);
};
std::string Position::toExifTimeStamp(std::string& t) {
char result[200];
const char* arg = t.c_str();
int HH = 0;
int mm = 0;
int SS1 = 0;
if (strstr(arg, ":") || strstr(arg, "-")) {
int YY = 0, MM = 0, DD = 0;
char a = 0, b = 0, c = 0, d = 0, e = 0;
sscanf(arg, "%d%c%d%c%d%c%d%c%d%c%d", &YY, &a, &MM, &b, &DD, &c, &HH, &d, &mm, &e, &SS1);
}
snprintf(result, sizeof(result), "%d/1 %d/1 %d/1", HH, mm, SS1);
return result;
}
std::string Position::toExifString(double d) {
char result[200];
d *= 100;
snprintf(result, sizeof(result), "%d/100", abs(static_cast<int>(d)));
return result;
}
std::string Position::toExifString(double d, bool bRational, bool bLat) {
const char* NS = d >= 0.0 ? "N" : "S";
const char* EW = d >= 0.0 ? "E" : "W";
const char* NSEW = bLat ? NS : EW;
if (d < 0)
d = -d;
auto deg = static_cast<int>(d);
d -= deg;
d *= 60;
auto min = static_cast<int>(d);
d -= min;
d *= 60;
auto sec = static_cast<int>(d);
char result[200];
if (bRational)
snprintf(result, sizeof(result), "%d/1 %d/1 %d/1", deg, min, sec);
else
snprintf(result, sizeof(result), "%03d%s%02d'%02d\"%s", deg, gDeg, min, sec, NSEW);
return result;
}
std::string Position::toString() const {
char result[200];
std::string sLat = Position::toExifString(lat_, false, true);
std::string sLon = Position::toExifString(lon_, false, false);
snprintf(result, sizeof(result), "%s %s %-8.3f", sLon.c_str(), sLat.c_str(), ele_);
return result;
}
// defaults
int Position::adjust_ = 0;
int Position::tz_ = timeZoneAdjust();
int Position::dst_ = 0;
time_t Position::deltaMax_ = 60;
// UserData - used by XML Parser
struct UserData final {
explicit UserData(Options& options) : options_(options) {
}
// public data members
int indent{0};
size_t count{0};
Position now;
Position prev;
int nTrkpt{0};
bool bTime{false};
bool bEle{false};
double ele{0.};
double lat{0.};
double lon{0.};
std::string xmlt;
std::string exift;
time_t time{0};
Options& options_;
// static public data members
};
// XML Parser Callbacks
static void startElement(void* userData, const char* name, const char** atts) {
auto me = static_cast<UserData*>(userData);
// for ( int i = 0 ; i < me->indent ; i++ ) printf(" ");
// printf("begin %s\n",name);
me->bTime = strcmp(name, "time") == 0;
me->bEle = strcmp(name, "ele") == 0;
if (strcmp(name, "trkpt") == 0) {
me->nTrkpt++;
while (*atts) {
const char* a = atts[0];
const char* v = atts[1];
if (!strcmp(a, "lat"))
me->lat = atof(v);
if (!strcmp(a, "lon"))
me->lon = atof(v);
atts += 2;
}
}
me->count++;
me->indent++;
}
static void endElement(void* userData, const char* name) {
auto me = static_cast<UserData*>(userData);
me->indent--;
if (strcmp(name, "trkpt") == 0) {
me->nTrkpt--;
me->now = Position(me->time, me->lat, me->lon, me->ele);
if (!me->prev.good() && me->options_.verbose) {
printf("trkseg %s begin ", me->now.getTimeString().c_str());
}
// remember our location and put it in gTimeDict
gTimeDict[me->time] = me->now;
me->prev = me->now;
}
if (strcmp(name, "trkseg") == 0 && me->options_.verbose) {
printf("%s end\n", me->now.getTimeString().c_str());
}
}
void charHandler(void* userData, const char* s, int len) {
auto me = static_cast<UserData*>(userData);
if (me->nTrkpt == 1) {
char buffer[100];
int l_max = 98; // lengthof(buffer) -2 ;
if (me->bTime && len > 5) {
if (len < l_max) {
memcpy(buffer, s, len);
buffer[len] = 0;
char* b = buffer;
while (*b == ' ' && b < buffer + len)
b++;
me->xmlt = b;
me->time = parseTime(me->xmlt.c_str());
me->exift = getExifTime(me->time);
}
me->bTime = false;
}
if (me->bEle && len > 2) {
if (len < l_max) {
memcpy(buffer, s, len);
buffer[len] = 0;
char* b = buffer;
while (*b == ' ' && b < buffer + len)
b++;
me->ele = atof(b);
}
me->bEle = false;
}
}
}
// Time Functions
time_t parseTime(const char* arg, bool bAdjust) {
time_t result = 0;
try {
// 559 rmills@rmills-imac:~/bin $ exiv2 -pa ~/R.jpg | grep -i date
// Exif.Image.DateTime Ascii 20 2009:08:03 08:58:57
// Exif.Photo.DateTimeOriginal Ascii 20 2009:08:03 08:58:57
// Exif.Photo.DateTimeDigitized Ascii 20 2009:08:03 08:58:57
// Exif.GPSInfo.GPSDateStamp Ascii 21 2009-08-03T15:58:57Z
// <time>2012-07-14T17:33:16Z</time>
if (strstr(arg, ":") || strstr(arg, "-")) {
int YY = 0, MM = 0, DD = 0, HH = 0, mm = 0, SS1 = 0;
char a = 0, b = 0, c = 0, d = 0, e = 0;
sscanf(arg, "%d%c%d%c%d%c%d%c%d%c%d", &YY, &a, &MM, &b, &DD, &c, &HH, &d, &mm, &e, &SS1);
struct tm T = {};
T.tm_min = mm;
T.tm_hour = HH;
T.tm_sec = SS1;
if (bAdjust)
T.tm_sec -= Position::Adjust();
T.tm_year = YY - 1900;
T.tm_mon = MM - 1;
T.tm_mday = DD;
T.tm_isdst = -1; // determine value automatically (otherwise hour may shift)
result = mktime(&T);
}
} catch (...) {
};
return result;
}
// West of GMT is negative (PDT = Pacific Daylight = -07:00 == -25200 seconds
int timeZoneAdjust() {
[[maybe_unused]] time_t now = time(nullptr);
int offset;
#if defined(_WIN32)
TIME_ZONE_INFORMATION TimeZoneInfo;
GetTimeZoneInformation(&TimeZoneInfo);
offset = -(((int)TimeZoneInfo.Bias + (int)TimeZoneInfo.DaylightBias) * 60);
#elif defined(__CYGWIN__)
struct tm lcopy = *localtime(&now);
time_t gmt = timegm(&lcopy); // timegm modifies lcopy
offset = (int)(((long signed int)gmt) - ((long signed int)now));
#elif defined(OS_SOLARIS) || defined(__sun__)
struct tm local = *localtime(&now);
time_t local_tt = (int)mktime(&local);
time_t time_gmt = (int)mktime(gmtime(&now));
offset = time_gmt - local_tt;
#else
struct tm local = *localtime(&now);
offset = local.tm_gmtoff;
#if EXIV2_DEBUG_MESSAGES
struct tm utc = *gmtime(&now);
printf("utc : offset = %6d dst = %d time = %s", 0, utc.tm_isdst, asctime(&utc));
printf("local: offset = %6d dst = %d time = %s", offset, local.tm_isdst, asctime(&local));
printf("timeZoneAdjust = %6d\n", offset);
#endif
#endif
return offset;
}
std::string getExifTime(const time_t t) {
static char result[100];
strftime(result, sizeof(result), "%Y-%m-%d %H:%M:%S", localtime(&t));
return result;
}
std::string makePath(const std::string& dir, const std::string& file) {
return dir + std::string(EXV_SEPARATOR_STR) + file;
}
// file utilities
bool readDir(const char* path, Options& options) {
bool bResult = false;
#ifdef _MSC_VER
DWORD attrs = GetFileAttributes(path);
bool bOKAttrs = attrs != INVALID_FILE_ATTRIBUTES;
bool bIsDir = (attrs & FILE_ATTRIBUTE_DIRECTORY) ? true : false;
if (bOKAttrs && bIsDir) {
bResult = true;
char search[_MAX_PATH + 10];
strcpy_s(search, _MAX_PATH, path);
strcat_s(search, _MAX_PATH, "\\*");
WIN32_FIND_DATA ffd;
HANDLE hFind = FindFirstFile(search, &ffd);
BOOL bGo = hFind != INVALID_HANDLE_VALUE;
if (bGo) {
while (bGo) {
if (ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
// _tprintf(TEXT(" %s <DIR>\n"), ffd.cFileName);
} else {
std::string pathName = makePath(path, ffd.cFileName);
if (getFileType(pathName, options) == typeImage) {
gFiles.push_back(pathName);
}
}
bGo = FindNextFile(hFind, &ffd) != 0;
}
// CloseHandle(hFind);
}
}
#else
DIR* dir = opendir(path);
if (dir != nullptr) {
bResult = true;
struct dirent* ent;
// print all the files and directories within directory
while ((ent = readdir(dir)) != nullptr) {
std::string pathName = makePath(path, ent->d_name);
struct stat buf;
lstat(path, &buf);
if (ent->d_name[0] != '.') {
// printf("reading %s => %s\n",ent->d_name,pathName.c_str());
if (getFileType(pathName, options) == typeImage) {
gFiles.push_back(pathName);
}
}
}
closedir(dir);
}
#endif
return bResult;
}
inline size_t sip(FILE* f, char* buffer, size_t max_len, size_t len) {
while (!feof(f) && len < max_len && buffer[len - 1] != '>')
buffer[len++] = fgetc(f);
return len;
}
bool readXML(const char* path, Options& options) {
FILE* f = fopen(path, "r");
XML_Parser parser = XML_ParserCreate(nullptr);
bool bResult = f && parser;
if (bResult) {
char buffer[8 * 1024];
UserData me(options);
XML_SetUserData(parser, &me);
XML_SetElementHandler(parser, startElement, endElement);
XML_SetCharacterDataHandler(parser, charHandler);
// a little sip at the data
size_t len = fread(buffer, 1, sizeof(buffer) - 100, f);
const char* lead = "<?xml";
bResult = strncmp(lead, buffer, strlen(lead)) == 0;
// swallow it
if (bResult) {
len = sip(f, buffer, sizeof buffer, len);
bResult = XML_Parse(parser, buffer, static_cast<int>(len), len == 0) == XML_STATUS_OK;
}
// drink the rest of the file
while (bResult && len != 0) {
len = fread(buffer, 1, sizeof(buffer) - 100, f);
len = sip(f, buffer, sizeof buffer, len);
bResult = XML_Parse(parser, buffer, static_cast<int>(len), len == 0) == XML_STATUS_OK;
};
}
if (f)
fclose(f);
if (parser)
XML_ParserFree(parser);
return bResult;
}
bool readImage(const char* path, Options& /* options */) {
using namespace Exiv2;
bool bResult = false;
try {
Image::UniquePtr image = ImageFactory::open(path);
if (image.get()) {
image->readMetadata();
ExifData& exifData = image->exifData();
bResult = !exifData.empty();
}
} catch (...) {
};
return bResult;
}
time_t readImageTime(const std::string& path, std::string* pS = nullptr) {
using namespace Exiv2;
time_t result = 0;
const char* dateStrings[] = {"Exif.Photo.DateTimeOriginal", "Exif.Photo.DateTimeDigitized", "Exif.Image.DateTime",
nullptr};
for (size_t i = 0; !result && dateStrings[i]; i++) {
const char* dateString = dateStrings[i];
try {
Image::UniquePtr image = ImageFactory::open(path);
if (image.get()) {
image->readMetadata();
ExifData& exifData = image->exifData();
// printf("%s => %s\n",dateString, exifData[dateString].toString().c_str());
result = parseTime(exifData[dateString].toString().c_str(), true);
if (result && pS)
*pS = exifData[dateString].toString();
}
} catch (...) {
};
}
return result;
}
bool sina(const char* s, const char** a) {
bool bResult = false;
int i = 0;
while (*s == '-')
s++;
while (!bResult && a[i]) {
const char* A = a[i];
while (*A == '-')
A++;
bResult = stricmp(s, A) == 0;
i++;
}
return bResult;
}
int readFile(const char* path, const Options& /* options */) {
FILE* f = fopen(path, "r");
int nResult = f ? typeFile : typeUnknown;
if (f) {
const char* ext = strstr(path, ".");
if (ext) {
const char* docs[] = {".doc", ".txt", nullptr};
const char* code[] = {".cpp", ".h", ".pl", ".py", ".pyc", nullptr};
if (sina(ext, docs))
nResult = typeDoc;
if (sina(ext, code))
nResult = typeCode;
}
fclose(f);
}
return nResult;
}
Position* searchTimeDict(TimeDict_t& td, const time_t& time, long long delta) {
Position* result = nullptr;
for (int t = 0; !result && t < delta; t++) {
for (int x = 0; !result && x < 2; x++) {
int T = t * ((x == 0) ? -1 : 1);
if (td.count(time + T)) {
result = &td[time + T];
result->delta(T);
}
}
}
return result;
}
int getFileType(std::string& path, Options& options) {
return getFileType(path.c_str(), options);
}
int getFileType(const char* path, Options& options) {
return readXML(path, options) ? typeXML
: readDir(path, options) ? typeDirectory
: readImage(path, options) ? typeImage
: readFile(path, options);
}
int version(const char* program) {
printf("%s: %s %s\n", program, __DATE__, __TIME__);
return 0;
}
int help(const char* program, char const* words[], int nWords, bool /*bVerbose*/) {
printf("usage: %s ", program);
for (int i = 0; i < nWords; i++) {
if (words[i])
printf("%c-%s%s", i ? '|' : '{', words[i], i > (-kwNOVALUE) ? " value" : "");
}
printf("}+ path+\n");
return 0;
}
int compare(const char* a, const char* b) {
int result = *a && *b;
while (result && *a && *b) {
char A = *a++;
char B = *b++;
result = tolower(A) == tolower(B);
}
return result;
}
int find(const char* arg, char const* words[], int nWords) {
if (arg[0] != '-')
return kwSYNTAX;
int result = 0;
int count = 0;
for (int i = 0; i < nWords; i++) {
int j = 0;
while (arg[j] == '-')
j++;
if (::compare(arg + j, words[i])) {
result = i;
count++;
}
}
return count == 1 ? result : kwSYNTAX;
}
int parseTZ(const char* adjust) {
int h = 0;
int m = 0;
char c = 0;
try {
sscanf(adjust, "%d%c%d", &h, &c, &m);
} catch (...) {
};
return (3600 * h) + (60 * m);
}
bool mySort(const std::string& a, const std::string& b) {
time_t A = readImageTime(a);
time_t B = readImageTime(b);
return (A < B);
}
int main(int argc, const char* argv[]) {
Exiv2::XmpParser::initialize();
::atexit(Exiv2::XmpParser::terminate);
int result = 0;
const char* program = argv[0];
const char* types[typeMax];
types[typeUnknown] = "unknown";
types[typeDirectory] = "directory";
types[typeImage] = "image";
types[typeXML] = "xml";
types[typeDoc] = "doc";
types[typeCode] = "code";
types[typeFile] = "file";
char const* keywords[kwMAX] = {};
keywords[kwHELP] = "help";
keywords[kwVERSION] = "version";
keywords[kwVERBOSE] = "verbose";
keywords[kwDRYRUN] = "dryrun";
keywords[kwASCII] = "ascii";
keywords[kwDST] = "dst";
keywords[kwADJUST] = "adjust";
keywords[kwTZ] = "tz";
keywords[kwDELTA] = "delta";
std::map<std::string, std::string> shorts;
shorts["-?"] = "-help";
shorts["-h"] = "-help";
shorts["-v"] = "-verbose";
shorts["-V"] = "-version";
shorts["-d"] = "-dst";
shorts["-a"] = "-adjust";
shorts["-t"] = "-tz";
shorts["-D"] = "-delta";
shorts["-s"] = "-delta";
shorts["-X"] = "-dryrun";
shorts["-A"] = "-ascii";
Options options;
options.help = sina(keywords[kwHELP], argv) || argc < 2;
options.verbose = sina(keywords[kwVERBOSE], argv);
options.dryrun = sina(keywords[kwDRYRUN], argv);
options.version = sina(keywords[kwVERSION], argv);
options.dst = sina(keywords[kwDST], argv);
options.ascii = sina(keywords[kwASCII], argv);
for (int i = 1; !result && i < argc; i++) {
const char* arg = argv[i++];
if (shorts.count(arg))
arg = shorts[arg].c_str();
const char* value = argv[i];
int ivalue = ::atoi(value ? value : "0");
int key = ::find(arg, keywords, kwMAX);
int needv = key < kwMAX && key > (-kwNOVALUE);
if (!needv)
i--;
if (needv && !value)
key = kwNEEDVALUE;
switch (key) {
case kwDST:
options.dst = true;
break;
case kwHELP:
options.help = true;
break;
case kwVERSION:
options.version = true;
break;
case kwDRYRUN:
options.dryrun = true;
break;
case kwVERBOSE:
options.verbose = true;
break;
case kwASCII:
options.ascii = true;
break;
case kwTZ:
Position::tz_ = parseTZ(value);
break;
case kwADJUST:
Position::adjust_ = ivalue;
break;
case kwDELTA:
Position::deltaMax_ = ivalue;
break;
case kwNEEDVALUE:
fprintf(stderr, "error: %s requires a value\n", arg);
result = resultSyntaxError;
break;
case kwSYNTAX:
default: {
int type = getFileType(arg, options);
if (options.verbose)
printf("%s %s ", arg, types[type]);
if (type == typeImage) {
time_t t = readImageTime(std::string(arg));
auto p = fs::absolute(fs::path(arg));
std::string path = p.string();
if (t && !path.empty()) {
if (options.verbose)
printf("%s %ld %s", path.c_str(), static_cast<long int>(t), asctime(localtime(&t)));
gFiles.push_back(path);
}
}
if (type == typeUnknown) {
fprintf(stderr, "error: illegal syntax %s\n", arg);
result = resultSyntaxError;
}
} break;
}
}
if (options.help)
::help(program, keywords, kwMAX, options.verbose);
if (options.version)
::version(program);
gDeg = options.ascii ? "deg" : "°";
if (!result) {
sort(gFiles.begin(), gFiles.end(), mySort);
if (options.dst)
Position::dst_ = 3600;
if (options.verbose) {
int t = Position::tz();
int d = Position::dst();
int a = Position::adjust();
int A = Position::Adjust();
int s = A;
int h = s / 3600;
s -= h * 3600;
s = abs(s);
int m = s / 60;
s -= m * 60;
printf("tz,dst,adjust = %d,%d,%d total = %dsecs (= %d:%d:%d)\n", t, d, a, A, h, m, s);
}
/*
if ( options.verbose ) {
printf("Time Dictionary\n");
for ( TimeDict_i it = gTimeDict.begin() ; it != gTimeDict.end() ; it++ ) {
std::string sTime = getExifTime(it->first);
Position* pPos = &it->second;
std::string sPos = Position::toExifString(pPos->lat(),false,true)
+ " "
+ Position::toExifString(pPos->lon(),false,true)
;
printf("%s %s\n",sTime.c_str(), sPos.c_str());
}
}
*/
for (auto&& path : gFiles) {
std::string stamp;
try {
time_t t = readImageTime(path, &stamp);
Position* pPos = searchTimeDict(gTimeDict, t, Position::deltaMax_);
Exiv2::Image::UniquePtr image = Exiv2::ImageFactory::open(path);
if (image.get()) {
image->readMetadata();
Exiv2::ExifData& exifData = image->exifData();
if (pPos) {
exifData["Exif.GPSInfo.GPSProcessingMethod"] = "charset=Ascii HYBRID-FIX";
exifData["Exif.GPSInfo.GPSVersionID"] = "2 2 0 0";
exifData["Exif.GPSInfo.GPSMapDatum"] = "WGS-84";
exifData["Exif.GPSInfo.GPSLatitude"] = Position::toExifString(pPos->lat(), true, true);
exifData["Exif.GPSInfo.GPSLongitude"] = Position::toExifString(pPos->lon(), true, false);
exifData["Exif.GPSInfo.GPSAltitude"] = Position::toExifString(pPos->ele());
exifData["Exif.GPSInfo.GPSAltitudeRef"] = pPos->ele() < 0.0 ? "1" : "0";
exifData["Exif.GPSInfo.GPSLatitudeRef"] = pPos->lat() > 0 ? "N" : "S";
exifData["Exif.GPSInfo.GPSLongitudeRef"] = pPos->lon() > 0 ? "E" : "W";
exifData["Exif.GPSInfo.GPSDateStamp"] = stamp;
exifData["Exif.GPSInfo.GPSTimeStamp"] = Position::toExifTimeStamp(stamp);
exifData["Exif.Image.GPSTag"] = 4908;
printf("%s %s % 2d\n", path.c_str(), pPos->toString().c_str(), pPos->delta());
} else {
printf("%s *** not in time dict ***\n", path.c_str());
}
if (!options.dryrun)
image->writeMetadata();
}
} catch (...) {
};
}
}
return result;
}
// That's all Folks!
Exiv2::ExifData
A container for Exif data. This is a top-level class of the Exiv2 library. The container holds Exifda...
Definition exif.hpp:379
Exiv2::ExifData::empty
bool empty() const
Return true if there is no Exif metadata.
Definition exif.hpp:465
Exiv2::ImageFactory::open
static Image::UniquePtr open(const std::string &path, bool useCurl=true)
Create an Image subclass of the appropriate type by reading the specified file. Image type is derived...
Definition image.cpp:820
Exiv2::Image::UniquePtr
std::unique_ptr< Image > UniquePtr
Image auto_ptr type.
Definition image.hpp:53
Exiv2::XmpParser::initialize
static bool initialize(XmpParser::XmpLockFct xmpLockFct=nullptr, void *pLockData=nullptr)
Initialize the XMP Toolkit.
Definition xmp.cpp:568
Exiv2::XmpParser::terminate
static void terminate()
Terminate the XMP Toolkit and unregister custom namespaces.
Definition xmp.cpp:623
Exiv2::Internal::indent
std::string indent(size_t i)
indent output for kpsRecursive in printStructure() .
Definition image_int.cpp:38
Exiv2
Class CrwImage to access Canon CRW images. References: The Canon RAW (CRW) File Format by Phil Harv...
Definition asfvideo.hpp:15
Exiv2::find
const T * find(T(&src)[N], const K &key)
Find an element that matches key in the array src.
Definition types.hpp:449
Exiv2::version
EXIV2API const char * version()
Return the version of Exiv2 as "C" string eg "0.27.0.2".
Definition version.cpp:82
Exiv2::time
@ time
IPTC time type.
Definition types.hpp:89
Exiv2::readFile
EXIV2API DataBuf readFile(const std::string &path)
Read file path into a DataBuf, which is returned.
Safe::abs
T abs(T num) noexcept
Calculates the absolute value of a number without producing negative values.
Definition safe_op.hpp:188