void print(const std::string& file)
{
Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open(file);
assert(image.get() != 0);
image->readMetadata();
Exiv2::ExifData &ed = image->exifData();
Exiv2::ExifData::const_iterator end = ed.end();
for (Exiv2::ExifData::const_iterator i = ed.begin(); i != end; ++i) {
std::cout << std::setw(45) << std::setfill(' ') << std::left
<< i->key() << " "
<< "0x" << std::setw(4) << std::setfill('0') << std::right
<< std::hex << i->tag() << " "
<< std::setw(12) << std::setfill(' ') << std::left
<< i->ifdName() << " "
<< std::setw(9) << std::setfill(' ') << std::left
<< i->typeName() << " "
<< std::dec << std::setw(3)
<< std::setfill(' ') << std::right
<< i->count() << " "
<< std::dec << i->value()
<< "\n";
}
}
QString exifDataToString(Exiv2::ExifData exifData) {
if (exifData.empty()) {
return QString(QObject::tr("No EXIF found"));
}
try {
Exiv2::ExifData::const_iterator end = exifData.end();
QString tmpExif, final;
for (Exiv2::ExifData::const_iterator i = exifData.begin(); i != end; ++i) {
const char* tn = i->typeName();
/*std::string str = i->key() << " ";
<< "0x" << std::setw(4) << std::setfill('0') << std::right
<< std::hex << i->tag() << " "
<< std::setw(9) << std::setfill(' ') << std::left
<< (tn ? tn : "Unknown") << " "
<< std::dec << std::setw(3)
<< std::setfill(' ') << std::right
<< i->count() << " "
<< std::dec << i->value()
<< "\n";*/
tmpExif = "<span style='color:#1cb495;'>" + QString::fromStdString(i->key()).split(".").at(2) + "</span> " +
//QString::number(i->tag()) + "\t" +
//(tn ? tn : "Unknown") + "\t" +
//QString::number(i->count()) + "\t" +
QString::fromStdString(i->value().toString()) + "<br />";
final.append(tmpExif);
}
return final;
} catch(Exiv2::Error& e) {
void print(const std::string& file)
{
Exiv2::ExifData ed;
int rc = ed.read(file);
if (rc) {
std::string error = Exiv2::ExifData::strError(rc, file);
throw Exiv2::Error(error);
}
Exiv2::ExifData::const_iterator end = ed.end();
for (Exiv2::ExifData::const_iterator i = ed.begin(); i != end; ++i) {
std::cout << std::setw(45) << std::setfill(' ') << std::left
<< i->key() << " "
<< "0x" << std::setw(4) << std::setfill('0') << std::right
<< std::hex << i->tag() << " "
<< std::setw(12) << std::setfill(' ') << std::left
<< i->ifdName() << " "
<< std::setw(9) << std::setfill(' ') << std::left
<< i->typeName() << " "
<< std::dec << std::setw(3)
<< std::setfill(' ') << std::right
<< i->count() << " "
<< std::dec << i->value()
<< "\n";
}
}
// uses the exiv2 class to readout the exifdata from images
int ExifScout::showExifData(std::string a){
try {
Ui_MainWindow::textEdit->clear();
std::cerr << "ImageFactory::open ";
Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open(a);
std::cerr << "DONE\n";
assert(image.get() != 0);
std::cerr << "image->readMetadata() ";
image->readMetadata();
std::cerr << "DONE\n";
std::cerr << "Exiv2::ExifData& exifData = image->exifData() ";
Exiv2::ExifData exifData = image->exifData();
std::cerr << "DONE\n";
cout << "Number of found exiv2 data: " << exifData.count() << endl;
if (exifData.empty()) {
Ui_MainWindow::textEdit->setPlainText("No Exif data found in file");
return 1;
}
Exiv2::ExifData::const_iterator end = exifData.end();
std::cerr << "Generate the exif-output ";
QString output;
for (Exiv2::ExifData::const_iterator i = exifData.begin(); i != end; ++i) {
std::string tagname = i->tagName();
if(tagname != std::string("MakerNote") and
tagname.substr(0,2) != "0x"){
// Print out the exif-data in the QtextEdit Field
std::ostringstream oss;
oss << i->tagName() << ":\n " << i->value() << "\n";
output = output+(QString)oss.str().c_str();
}
}
std::cerr << "Done\n";
Ui_MainWindow::textEdit->setPlainText(output);
return 0;
}
//catch (std::exception& e) {
//catch (Exiv2::AnyError& e) {
catch (Exiv2::Error& e) {
std::cout << "Caught Exiv2 exception '" << e.what() << "'\n";
return -1;
}
}
// This is weird because iptc and exif have not been "unified". Once
// they are unified, this DLL should not have to know
// about either... just generic images, keys, values, etc.
//
// buffsize should be the total size of *buff (including space for null)
// Note that if there is more than one entry (for some IPTC datasets) this
// returns the first one found. Currently no way to get the others.
// Returns 0 on success
EXIVSIMPLE_API int ReadMeta(HIMAGE img, const char *key, char *buff, int buffsize)
{
assert(img && key && buff);
if (img==0 || key==0 || buff==0 || buffsize==0) return -1;
ImageWrapper *imgWrap = (ImageWrapper*)img;
int rc = 2;
Exiv2::IptcData &iptcData = imgWrap->image->iptcData();
Exiv2::ExifData &exifData = imgWrap->image->exifData();
try {
// First try iptc
Exiv2::IptcKey iptcKey(key);
rc = 1;
Exiv2::IptcData::const_iterator iter = iptcData.findKey(iptcKey);
if (iter != iptcData.end()) {
strncpy(buff, iter->value().toString().c_str(), buffsize);
buff[buffsize-1] = 0;
rc = 0;
}
}
catch(const Exiv2::AnyError&) {
}
if (rc) {
// No iptc value, so try exif
try {
Exiv2::ExifKey exifKey(key);
rc = 1;
Exiv2::ExifData::const_iterator iter = exifData.findKey(exifKey);
if (iter != exifData.end()) {
strncpy(buff, iter->value().toString().c_str(), buffsize);
buff[buffsize-1] = 0;
rc = 0;
}
}
catch(const Exiv2::AnyError&) {
}
}
return rc;
}
// tries to find a specified exif tag in a specified file
QString ExifScout::getExifData(QString fname, QString etag){
std::string filename = fname.toAscii().data();
std::string exiftag = etag.toAscii().data();
Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open(filename);
assert(image.get() != 0);
image->readMetadata();
Exiv2::ExifData exifData = image->exifData();
if (!exifData.empty()) {
Exiv2::ExifData::const_iterator end = exifData.end();
QString output;
for (Exiv2::ExifData::const_iterator i = exifData.begin(); i != end; ++i) {
if(i->tagName()==exiftag){
std::ostringstream oss;
oss << i->value();
return (QString)oss.str().c_str();
}
}
}
return NULL;
}
void print(const ExifData& exifData)
{
if (exifData.empty()) {
std::string error("No Exif data found in the file");
throw Exiv2::Error(1, error);
}
Exiv2::ExifData::const_iterator end = exifData.end();
for (Exiv2::ExifData::const_iterator i = exifData.begin(); i != end; ++i) {
std::cout << std::setw(44) << std::setfill(' ') << std::left
<< i->key() << " "
<< "0x" << std::setw(4) << std::setfill('0') << std::right
<< std::hex << i->tag() << " "
<< std::setw(9) << std::setfill(' ') << std::left
<< i->typeName() << " "
<< std::dec << std::setw(3)
<< std::setfill(' ') << std::right
<< i->count() << " "
<< std::dec << i->value()
<< "\n";
}
}
void exiv2_dump_tags(const ExifData& exif)
{
cout << "exiv2_dump_tags: " << endl;
Exiv2::ExifData::const_iterator end = exif.end();
for (Exiv2::ExifData::const_iterator i = exif.begin(); i != end; ++i)
{
std::cout << std::setw(44) << std::setfill(' ') << std::left
<< i->key() << " "
<< "0x" << std::setw(4) << std::setfill('0') << std::right
<< std::hex << i->tag() << " "
<< std::setw(9) << std::setfill(' ') << std::left
<< i->typeName() << " "
<< std::dec << std::setw(3)
<< std::setfill(' ') << std::right
<< i->count() << " "
<< std::dec << i->value()
<< "\n";
}
}
int main(int argc, char* const argv[])
try {
if (argc != 2) {
std::cout << "Usage: " << argv[0] << " file\n";
return 1;
}
Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open(argv[1]);
if (image.get() == 0) {
std::string error(argv[1]);
error += " : Could not read file or unknown image type";
throw Exiv2::Error(error);
}
// Load existing metadata
int rc = image->readMetadata();
if (rc) {
std::string error = Exiv2::Image::strError(rc, argv[1]);
throw Exiv2::Error(error);
}
Exiv2::ExifData &exifData = image->exifData();
Exiv2::ExifData::const_iterator end = exifData.end();
for (Exiv2::ExifData::const_iterator i = exifData.begin(); i != end; ++i) {
std::cout << std::setw(53) << std::setfill(' ') << std::left
<< i->key() << " "
<< "0x" << std::setw(4) << std::setfill('0') << std::right
<< std::hex << i->tag() << " "
<< std::dec << i->value()
<< "\n";
}
return rc;
}
catch (Exiv2::Error& e) {
std::cout << "Caught Exiv2 exception '" << e << "'\n";
return -1;
}
bool ExtendedPhoto::findExifKey(const std::string& key, String& value) const
{
const Exiv2::ExifData& exifData = pImage->exifData();
try
{
Exiv2::ExifKey exifKey(key);
Exiv2::ExifData::const_iterator citer = exifData.findKey(exifKey);
if (citer != exifData.end())
{
value = citer->value().toString();
value.trim();
return true;
}
return false;
}
catch (...)
{
return false;
}
}
EXIVSIMPLE_API int EnumMeta(HIMAGE img, METAENUMPROC proc, void *user)
{
assert(img && proc);
if (img==0 || proc==0) return -1;
ImageWrapper *imgWrap = (ImageWrapper*)img;
bool more = true;
Exiv2::IptcData &iptcData = imgWrap->image->iptcData();
Exiv2::ExifData &exifData = imgWrap->image->exifData();
Exiv2::IptcData::const_iterator iend = iptcData.end();
for (Exiv2::IptcData::const_iterator i = iptcData.begin();
i != iend && more; ++i) {
more = proc(i->key().c_str(), i->value().toString().c_str(), user);
}
Exiv2::ExifData::const_iterator eend = exifData.end();
for (Exiv2::ExifData::const_iterator e = exifData.begin();
e != eend && more; ++e) {
more = proc(e->key().c_str(), e->value().toString().c_str(), user);
}
return 0;
}
void scan_exiv2(const class scanner_params &sp,const recursion_control_block &rcb)
{
assert(sp.sp_version==scanner_params::CURRENT_SP_VERSION);
if(sp.phase==scanner_params::PHASE_STARTUP){
assert(sp.info->si_version==scanner_info::CURRENT_SI_VERSION);
sp.info->name = "exiv2";
sp.info->author = "Simson L. Garfinkel";
sp.info->description = "Searches for EXIF information using exiv2";
sp.info->scanner_version= "1.0";
sp.info->feature_names.insert("exif");
sp.info->feature_names.insert("gps");
sp.info->flags = scanner_info::SCANNER_DISABLED; // disabled because we have be_exif
return;
}
if(sp.phase==scanner_params::PHASE_SHUTDOWN) return;
if(sp.phase==scanner_params::PHASE_SCAN){
const sbuf_t &sbuf = sp.sbuf;
feature_recorder *exif_recorder = sp.fs.get_name("exif");
feature_recorder *gps_recorder = sp.fs.get_name("gps");
#ifdef HAVE_EXIV2__LOGMSG__SETLEVEL
/* New form to suppress error messages on exiv2 */
Exiv2::LogMsg::setLevel(Exiv2::LogMsg::mute);
#endif
size_t pos_max = 1; // by default, just scan 1 byte
if(sbuf.bufsize > min_exif_size){
pos_max = sbuf.bufsize - min_exif_size; // we can scan more!
}
/* Loop through all possible locations in the buffer */
for(size_t pos=0;pos<pos_max;pos++){
size_t count = exif_gulp_size;
count = min(count,sbuf.bufsize-pos);
//size_t count = sbuf.bufsize-pos; // use all to end
/* Explore the beginning of each 512-byte block as well as the starting location
* of any JPEG on any boundary. This will cause processing of any multimedia file
* that Exiv2 recognizes (for which I do not know all the headers.
*/
if(pos%512==0 || jpeg_start(sbuf+pos)){
try {
Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open(sbuf.buf+pos,count);
if(image->good()){
image->readMetadata();
Exiv2::ExifData &exifData = image->exifData();
if (exifData.empty()) continue;
/*
* Create the MD5 of the first 4K to use as a unique identifier.
*/
sbuf_t tohash(sbuf,0,4096);
string md5_hex = exif_recorder->fs.hasher.func(tohash.buf,tohash.bufsize);
char xmlbuf[1024];
snprintf(xmlbuf,sizeof(xmlbuf),
"<exiv2><width>%d</width><height>%d</height>",
image->pixelWidth(),image->pixelHeight());
/* Scan through the fields reported by exiv2.
* Create XML for each and extract GPS information if present.
*/
string photo_time; // use this when gps_time is not available
string gps_time;
string gps_date;
string gps_lat_ref;
string gps_lat;
string gps_lon_ref;
string gps_lon;
string gps_ele;
string gps_speed;
string gps_course;
bool has_gps = false;
bool has_gps_date = false;
string xml = xmlbuf;
for (Exiv2::ExifData::const_iterator i = exifData.begin();
i != exifData.end(); ++i) {
if(i->count()>1000) continue; // ignore long ones
string key = string(i->key());
xml.append("<"+key+">"+dfxml_writer::xmlescape(i->value().toString())+"</"+key+">");
// use Date from Photo unless date from GPS is available
if(key=="Exif.Photo.DateTimeOriginal"){
photo_time = i->value().toString();
/* change "2011/06/25 12:20:11" to "2011-06-25 12:20:11" */
std::transform(photo_time.begin(),photo_time.end(),photo_time.begin(),slash_to_dash);
/* change "2011:06:25 12:20:11" to "2011-06-25 12:20:11" */
if (photo_time[4] == ':') {
photo_time[4] = '-';
}
if (photo_time[7] == ':') {
photo_time[7] = '-';
}
/* Change "2011-06-25 12:20:11" to "2011-06-25T12:20:11" */
size_t first_space = photo_time.find(' ');
if(first_space!=string::npos) {
photo_time.replace(first_space,1,"T");
}
} else if(key=="Exif.GPSInfo.GPSTimeStamp") {
has_gps = true;
has_gps_date = true;
gps_time = i->value().toString();
// reformat timestamp to standard ISO8601
// change "12 20 11" to "12:20:11"
if (gps_time.length() == 8) {
if (gps_time[4] == ' ') {
gps_time[4] = ':';
}
if (gps_time[7] == ' ') {
gps_time[7] = ':';
}
}
} else if(key=="Exif.GPSInfo.GPSDateStamp") {
has_gps = true;
has_gps_date = true;
gps_date = i->value().toString();
// reformat timestamp to standard ISO8601
// change "2011:06:25" to "2011-06-25"
if (gps_date.length() == 10) {
if (gps_date[4] == ':') {
gps_date[4] = '-';
}
if (gps_date[7] == ':') {
gps_date[7] = '-';
}
}
} else if(key=="Exif.GPSInfo.GPSLongitudeRef"){
has_gps = true;
gps_lon_ref = fix_gps_ref(i->value().toString());
} else if(key=="Exif.GPSInfo.GPSLongitude"){
has_gps = true;
gps_lon = fix_gps(i->value().toString());
} else if(key=="Exif.GPSInfo.GPSLatitudeRef"){
has_gps = true;
gps_lat_ref = fix_gps_ref(i->value().toString());
} else if(key=="Exif.GPSInfo.GPSLatitude"){
has_gps = true;
gps_lat = fix_gps(i->value().toString());
} else if(key=="Exif.GPSInfo.GPSAltitude"){
has_gps = true;
gps_ele = dtos(rational(i->value().toString()));
} else if(key=="Exif.GPSInfo.GPSSpeed"){
has_gps = true;
gps_speed = dtos(rational(i->value().toString()));
} else if(key=="Exif.GPSInfo.GPSTrack"){
has_gps = true;
gps_course = i->value().toString();
}
}
xml.append("</exiv2>");
// record EXIF
exif_recorder->write(sp.sbuf.pos0+pos,md5_hex,xml);
// record GPS
if (has_gps) {
if (has_gps_date) {
// record the GPS entry using the GPS date
gps_recorder->write(sp.sbuf.pos0+pos,md5_hex,
gps_date+"T"+gps_time+","+gps_lat_ref+gps_lat+","
+gps_lon_ref+gps_lon+","
+gps_ele+","+gps_speed+","+gps_course);
} else {
// record the GPS entry using the date obtained from Photo
gps_recorder->write(sp.sbuf.pos0+pos,md5_hex,
photo_time+","+gps_lat_ref+gps_lat+","
+gps_lon_ref+gps_lon+","
+gps_ele+","+gps_speed+","+gps_course);
}
}
}
}
catch (Exiv2::AnyError &e) { }
catch (std::exception &e) { }
}
}
}
}
/** \fn ImageUtils::GetAllExifValues(const QString &)
* \brief Reads and returns all non empty tags from the given file
* \param fileName The filename that holds the exif data
* \return The list of exif tag names and values
*/
QList<QStringList> ImageUtils::GetAllExifValues(const QString &fileName)
{
// default value, an empty list means no
// exif tags were found or an error occured
QList<QStringList> valueList;
try
{
Exiv2::Image::AutoPtr image =
Exiv2::ImageFactory::open(fileName.toLocal8Bit().constData());
if (image.get())
{
image->readMetadata();
Exiv2::ExifData &exifData = image->exifData();
if (!exifData.empty())
{
LOG(VB_GENERAL, LOG_DEBUG,
QString("Found %1 tag(s) for file %2")
.arg(exifData.count())
.arg(fileName));
Exiv2::ExifData::const_iterator end = exifData.end();
Exiv2::ExifData::const_iterator i = exifData.begin();
for (; i != end; ++i)
{
QString value = QString::fromStdString(i->value().toString());
// Do not add empty tags to the list
if (!value.isEmpty())
{
QStringList values;
// These three are the same as i->key()
values.append(QString::fromStdString(i->familyName()));
values.append(QString::fromStdString(i->groupName()));
values.append(QString::fromStdString(i->tagName()));
values.append(QString::fromStdString(i->key()));
values.append(QString::fromStdString(i->tagLabel()));
values.append(QString::fromStdString(i->value().toString()));
// Add the exif information to the list
valueList.append(values);
}
}
}
else
{
LOG(VB_GENERAL, LOG_ERR,
QString("Exiv2 error: No header, file %1")
.arg(fileName));
}
}
else
{
LOG(VB_GENERAL, LOG_ERR,
QString("Exiv2 error: Could not open file, file %1")
.arg(fileName));
}
}
catch (Exiv2::Error& e)
{
LOG(VB_GENERAL, LOG_ERR,
QString("Exiv2 exception %1, file %2")
.arg(e.what()).arg(fileName));
}
return valueList;
}
void Tag_Handler::parseTag()
{
if(!gps_from_filename)
gps_found = false;
Exiv2::ExifData::const_iterator end = exif_data->end();
for(Exiv2::ExifData::const_iterator i = exif_data->begin(); i != end; ++i)
{
if(0)//(dumpAllExif)
{
const char* tn = i->typeName();
std::cout << std::setw(44) << std::setfill(' ') << std::left
<< i->key() << " "
<< "0x" << std::setw(4) << std::setfill('0') << std::right
<< std::hex << i->tag() << " "
<< std::setw(9) << std::setfill(' ') << std::left
<< (tn ? tn : "Unknown") << " "
<< std::dec << std::setw(3)
<< std::setfill(' ') << std::right
<< i->count() << " "
<< std::dec << i->value()
<< "\n";
}
if(i->key() == "Exif.GPSInfo.GPSLatitude" && !gps_from_filename)
{
gps.lat_ratio = QString::fromStdString(i->value().toString());
convert_degMinSec(gps.lat_ratio, gps.lat_coord);
gps.lat_coord.dec_form = getDecForm(gps.lat_coord, gps.lat_coord.ref);
gps_found = true;
}
else if(i->key() == "Exif.GPSInfo.GPSLongitude" && !gps_from_filename)
{
gps.long_ratio = QString::fromStdString(i->value().toString());
convert_degMinSec(gps.long_ratio, gps.long_coord);
gps.long_coord.dec_form = getDecForm(gps.long_coord, gps.long_coord.ref);
gps_found = true;
}
else if(i->key() == "Exif.GPSInfo.GPSLatitudeRef" && !gps_from_filename)
{
gps.lat_coord.ref = QString::fromStdString(i->value().toString());
}
else if(i->key() == "Exif.GPSInfo.GPSLongitudeRef" && !gps_from_filename)
{
gps.long_coord.ref = QString::fromStdString(i->value().toString());
}
else if(i->key() == "Exif.Photo.UserComment")
{
const char* tn = i->typeName();
std::cout << std::setw(44) << std::setfill(' ') << std::left
<< i->key() << " "
<< "0x" << std::setw(4) << std::setfill('0') << std::right
<< std::hex << i->tag() << " "
<< std::setw(9) << std::setfill(' ') << std::left
<< (tn ? tn : "Unknown") << " "
<< std::dec << std::setw(3)
<< std::setfill(' ') << std::right
<< i->count() << " "
<< std::dec << i->value()
<< "\n";
//need to reset user comment if hasn't been set before
if(i->count() == 264)
{
(*exif_data)["Exif.Photo.UserComment"] = "";
image->writeMetadata();
}
}
}
if(!gps_found)
{
clearGPSdata(gps);
}
}
