bool NegativeProcessor::getRawExifTag(const char* exifTagName, int32 component, uint32* value) {
Exiv2::ExifData::const_iterator it = m_RawExif.findKey(Exiv2::ExifKey(exifTagName));
if ((it == m_RawExif.end()) || (it->count() < (component + 1))) return false;
*value = static_cast<uint32>(it->toLong(component));
return true;
}
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";
}
}
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";
}
}
int RafImage::pixelHeight() const
{
Exiv2::ExifData::const_iterator heightIter = exifData_.findKey(Exiv2::ExifKey("Exif.Photo.PixelYDimension"));
if (heightIter != exifData_.end() && heightIter->count() > 0) {
return heightIter->toLong();
}
return 0;
}
int RafImage::pixelWidth() const
{
Exiv2::ExifData::const_iterator widthIter = exifData_.findKey(Exiv2::ExifKey("Exif.Photo.PixelXDimension"));
if (widthIter != exifData_.end() && widthIter->count() > 0) {
return widthIter->toLong();
}
return 0;
}
const long getExiv2ValueLong(Exiv2::ExifData& exifData, Exiv2::ExifData::const_iterator it)
{
if(it!=exifData.end() && it->count())
{
return it->toLong();
}
return 0;
};
const std::string getExiv2ValueString(Exiv2::ExifData& exifData,Exiv2::ExifData::const_iterator it)
{
if(it!=exifData.end() && it->count())
{
return hugin_utils::StrTrim(it->toString());
};
return std::string("");
};
const double getExiv2ValueDouble(Exiv2::ExifData& exifData, Exiv2::ExifData::const_iterator it)
{
if(it!=exifData.end() && it->count())
{
return it->toFloat();
}
return 0;
};
bool NegativeProcessor::getRawExifTag(const char* exifTagName, int32 component, dng_urational* rational) {
Exiv2::ExifData::const_iterator it = m_RawExif.findKey(Exiv2::ExifKey(exifTagName));
if ((it == m_RawExif.end()) || (it->count() < (component + 1))) return false;
Exiv2::URational exiv2Rational = (*it).toRational(component);
*rational = dng_urational(exiv2Rational.first, exiv2Rational.second);
return true;
}
int NegativeProcessor::getRawExifTag(const char* exifTagName, int16* valueArray, int32 maxFill) {
Exiv2::ExifData::const_iterator it = m_RawExif.findKey(Exiv2::ExifKey(exifTagName));
if (it == m_RawExif.end()) return 0;
int lengthToFill = std::min(maxFill, static_cast<int32>(it->count()));
for (int i = 0; i < lengthToFill; i++)
valueArray[i] = static_cast<int16>(it->toLong(i));
return lengthToFill;
}
int NegativeProcessor::getRawExifTag(const char* exifTagName, dng_urational* valueArray, int32 maxFill) {
Exiv2::ExifData::const_iterator it = m_RawExif.findKey(Exiv2::ExifKey(exifTagName));
if (it == m_RawExif.end()) return 0;
int lengthToFill = std::min(maxFill, static_cast<int32>(it->count()));
for (int i = 0; i < lengthToFill; i++) {
Exiv2::URational exiv2Rational = (*it).toRational(i);
valueArray[i] = dng_urational(exiv2Rational.first, exiv2Rational.second);
}
return lengthToFill;
}
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";
}
}
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) { }
}
}
}
}
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);
}
}