本文整理汇总了C++中exiv2::exifdata::const_iterator::count方法的典型用法代码示例。如果您正苦于以下问题:C++ const_iterator::count方法的具体用法?C++ const_iterator::count怎么用?C++ const_iterator::count使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类exiv2::exifdata::const_iterator
的用法示例。
在下文中一共展示了const_iterator::count方法的11个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: getRawExifTag
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;
}
示例2: print
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";
}
}
示例3: print
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";
}
}
示例4: pixelHeight
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;
}
示例5: pixelWidth
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;
}
示例6:
const long getExiv2ValueLong(Exiv2::ExifData& exifData, Exiv2::ExifData::const_iterator it)
{
if(it!=exifData.end() && it->count())
{
return it->toLong();
}
return 0;
};
示例7: StrTrim
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("");
};
示例8: print
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";
}
}
示例9: exiv2_dump_tags
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";
}
}
示例10: scan_exiv2
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] = '-';
//.........这里部分代码省略.........
示例11: parseTag
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);
}
}