// Always creates a new metadata entry.
// Passing invalidTypeId causes the type to be guessed.
// Guessing types is accurate for IPTC, but not for EXIF.
// Returns 0 on success
EXIVSIMPLE_API int AddMeta(HIMAGE img, const char *key, const char *val, DllTypeId type)
{
assert(img && key && val);
if (img==0 || key==0 || val==0) return -1;
ImageWrapper *imgWrap = (ImageWrapper*)img;
int rc = 2;
Exiv2::IptcData &iptcData = imgWrap->image->iptcData();
Exiv2::ExifData &exifData = imgWrap->image->exifData();
std::string data(val);
{
size_t dataLen = data.length();
// if data starts and ends with quotes, remove them
if (dataLen > 1 && *(data.begin()) == '\"' && *(data.rbegin()) == '\"') {
data = data.substr(1, dataLen-2);
}
}
try {
Exiv2::IptcKey iptcKey(key);
rc = 1;
if (type == invalidTypeId)
type = (DllTypeId)Exiv2::IptcDataSets::dataSetType(iptcKey.tag(), iptcKey.record());
Exiv2::Value::AutoPtr value = Exiv2::Value::create((Exiv2::TypeId)type);
value->read(data);
rc = iptcData.add(iptcKey, value.get());
}
catch(const Exiv2::AnyError&) {
}
if (rc) {
// Failed with iptc, so try exif
try {
Exiv2::ExifKey exifKey(key);
rc = 1;
// No way to get value type for exif... string is the most common
if (type == invalidTypeId)
type = asciiString;
Exiv2::Value::AutoPtr value = Exiv2::Value::create((Exiv2::TypeId)type);
value->read(data);
exifData.add(exifKey, value.get());
rc = 0;
}
catch(const Exiv2::AnyError&) {
}
}
return rc;
}
bool KExiv2::setIptcTagsStringList(const char* iptcTagName, int maxSize,
const QStringList& oldValues, const QStringList& newValues,
bool setProgramName) const
{
if (!setProgramId(setProgramName))
return false;
try
{
QStringList oldvals = oldValues;
QStringList newvals = newValues;
kDebug() << d->filePath.toAscii().constData() << " : " << iptcTagName
<< " => " << newvals.join(",").toAscii().constData();
// Remove all old values.
Exiv2::IptcData iptcData(d->iptcMetadata());
Exiv2::IptcData::iterator it = iptcData.begin();
while(it != iptcData.end())
{
QString key = QString::fromLocal8Bit(it->key().c_str());
QString val(it->toString().c_str());
// Also remove new values to avoid duplicates. They will be added again below.
if ( key == QString(iptcTagName) &&
(oldvals.contains(val) || newvals.contains(val))
)
it = iptcData.erase(it);
else
++it;
};
// Add new values.
Exiv2::IptcKey iptcTag(iptcTagName);
for (QStringList::iterator it = newvals.begin(); it != newvals.end(); ++it)
{
QString key = *it;
key.truncate(maxSize);
Exiv2::Value::AutoPtr val = Exiv2::Value::create(Exiv2::string);
val->read(key.toLatin1().constData());
iptcData.add(iptcTag, val.get());
}
d->iptcMetadata() = iptcData;
return true;
}
catch( Exiv2::Error& e )
{
d->printExiv2ExceptionError(QString("Cannot set Iptc key '%1' into image using Exiv2 ")
.arg(iptcTagName), e);
}
return false;
}
bool KExiv2::setIptcKeywords(const QStringList& oldKeywords, const QStringList& newKeywords,
bool setProgramName) const
{
if (!setProgramId(setProgramName))
return false;
try
{
QStringList oldkeys = oldKeywords;
QStringList newkeys = newKeywords;
kDebug() << d->filePath.toAscii().constData()
<< " ==> Iptc Keywords: " << newkeys.join(",").toAscii().constData();
// Remove all old keywords.
Exiv2::IptcData iptcData(d->iptcMetadata());
Exiv2::IptcData::iterator it = iptcData.begin();
while(it != iptcData.end())
{
QString key = QString::fromLocal8Bit(it->key().c_str());
QString val(it->toString().c_str());
// Also remove new keywords to avoid duplicates. They will be added again below.
if ( key == QString("Iptc.Application2.Keywords") &&
(oldKeywords.contains(val) || newKeywords.contains(val)) )
it = iptcData.erase(it);
else
++it;
};
// Add new keywords. Note that Keywords Iptc tag is limited to 64 char but can be redondant.
Exiv2::IptcKey iptcTag("Iptc.Application2.Keywords");
for (QStringList::iterator it = newkeys.begin(); it != newkeys.end(); ++it)
{
QString key = *it;
key.truncate(64);
Exiv2::Value::AutoPtr val = Exiv2::Value::create(Exiv2::string);
val->read(key.toLatin1().constData());
iptcData.add(iptcTag, val.get());
}
d->iptcMetadata() = iptcData;
return true;
}
catch( Exiv2::Error& e )
{
d->printExiv2ExceptionError("Cannot set Iptc Keywords into image using Exiv2 ", e);
}
return false;
}
bool KExiv2::setIptcSubCategories(const QStringList& oldSubCategories, const QStringList& newSubCategories,
bool setProgramName) const
{
if (!setProgramId(setProgramName))
return false;
try
{
QStringList oldkeys = oldSubCategories;
QStringList newkeys = newSubCategories;
// Remove all old Sub Categories.
Exiv2::IptcData iptcData(d->iptcMetadata());
Exiv2::IptcData::iterator it = iptcData.begin();
while(it != iptcData.end())
{
QString key = QString::fromLocal8Bit(it->key().c_str());
QString val(it->toString().c_str());
if (key == QString("Iptc.Application2.SuppCategory") && oldSubCategories.contains(val))
it = iptcData.erase(it);
else
++it;
};
// Add new Sub Categories. Note that SubCategories Iptc tag is limited to 32
// characters but can be redondant.
Exiv2::IptcKey iptcTag("Iptc.Application2.SuppCategory");
for (QStringList::iterator it = newkeys.begin(); it != newkeys.end(); ++it)
{
QString key = *it;
key.truncate(32);
Exiv2::Value::AutoPtr val = Exiv2::Value::create(Exiv2::string);
val->read(key.toLatin1().constData());
iptcData.add(iptcTag, val.get());
}
d->iptcMetadata() = iptcData;
return true;
}
catch( Exiv2::Error& e )
{
d->printExiv2ExceptionError("Cannot set Iptc Sub Categories into image using Exiv2 ", e);
}
return false;
}
bool ImageTags::writeTagsToImage(QString &imageFileName, QSet<QString> &newTags)
{
QSet<QString> imageTags;
Exiv2::Image::AutoPtr exifImage;
try {
exifImage = Exiv2::ImageFactory::open(imageFileName.toStdString());
exifImage->readMetadata();
Exiv2::IptcData newIptcData;
/* copy existing data */
Exiv2::IptcData &iptcData = exifImage->iptcData();
if (!iptcData.empty()) {
QString key;
Exiv2::IptcData::iterator end = iptcData.end();
for (Exiv2::IptcData::iterator iptcIt = iptcData.begin(); iptcIt != end; ++iptcIt) {
if (iptcIt->tagName() != "Keywords") {
newIptcData.add(*iptcIt);
}
}
}
/* add new tags */
QSetIterator<QString> newTagsIt(newTags);
while (newTagsIt.hasNext()) {
QString tag = newTagsIt.next();
Exiv2::Value::AutoPtr value = Exiv2::Value::create(Exiv2::string);
value->read(tag.toStdString());
Exiv2::IptcKey key("Iptc.Application2.Keywords");
newIptcData.add(key, value.get());
}
exifImage->setIptcData(newIptcData);
exifImage->writeMetadata();
}
catch (Exiv2::Error &error) {
QMessageBox msgBox;
msgBox.critical(this, tr("Error"), tr("Failed to save tags to ") + imageFileName);
return false;
}
return true;
}
int WriteFixedDatestamp(const char* File, time_t Time)
{
// Write the GPS data to the file...
struct stat statbuf;
struct stat statbuf2;
struct utimbuf utb;
stat(File, &statbuf);
Exiv2::Image::AutoPtr Image;
try {
Image = Exiv2::ImageFactory::open(File);
} catch (Exiv2::Error e) {
DEBUGLOG("Failed to open file %s.\n", File);
return 0;
}
Image->readMetadata();
if (Image.get() == NULL)
{
// It failed if we got here.
DEBUGLOG("Failed to read file %s %s.\n",
File, Exiv2::strError().c_str());
return 0;
}
Exiv2::ExifData &ExifToWrite = Image->exifData();
const struct tm TimeStamp = *gmtime(&Time);
char ScratchBuf[100];
snprintf(ScratchBuf, sizeof(ScratchBuf), "%04d:%02d:%02d",
TimeStamp.tm_year + 1900,
TimeStamp.tm_mon + 1,
TimeStamp.tm_mday);
ExifToWrite.erase(ExifToWrite.findKey(Exiv2::ExifKey("Exif.GPSInfo.GPSDateStamp")));
ExifToWrite["Exif.GPSInfo.GPSDateStamp"] = ScratchBuf;
Exiv2::Value::AutoPtr Value = Exiv2::Value::create(Exiv2::unsignedRational);
snprintf(ScratchBuf, sizeof(ScratchBuf), "%d/1 %d/1 %d/1",
TimeStamp.tm_hour, TimeStamp.tm_min,
TimeStamp.tm_sec);
Value->read(ScratchBuf);
ExifToWrite.erase(ExifToWrite.findKey(Exiv2::ExifKey("Exif.GPSInfo.GPSTimeStamp")));
ExifToWrite.add(Exiv2::ExifKey("Exif.GPSInfo.GPSTimeStamp"), Value.get());
try {
Image->writeMetadata();
} catch (Exiv2::Error e) {
DEBUGLOG("Failed to write to file %s.\n", File);
return 0;
}
// Reset the mtime.
stat(File, &statbuf2);
utb.actime = statbuf2.st_atime;
utb.modtime = statbuf.st_mtime;
utime(File, &utb);
return 1;
}
int WriteGPSData(const char* File, const struct GPSPoint* Point,
const char* Datum, int NoChangeMtime, int DegMinSecs)
{
// Write the GPS data to the file...
struct stat statbuf;
struct stat statbuf2;
struct utimbuf utb;
if (NoChangeMtime)
stat(File, &statbuf);
Exiv2::Image::AutoPtr Image;
try {
Image = Exiv2::ImageFactory::open(File);
} catch (Exiv2::Error e) {
DEBUGLOG("Failed to open file %s.\n", File);
return 0;
}
Image->readMetadata();
if (Image.get() == NULL)
{
// It failed if we got here.
DEBUGLOG("Failed to read file %s %s.\n",
File, Exiv2::strError().c_str());
return 0;
}
Exiv2::ExifData &ExifToWrite = Image->exifData();
// Make sure we're starting from a clean GPS IFD.
// There might be lots of GPS tags existing here, since only the
// presence of the GPSLatitude tag causes correlation to stop with
// "GPS Already Present" error.
EraseGpsTags(ExifToWrite);
char ScratchBuf[100];
// Do all the easy constant ones first.
// GPSVersionID tag: standard says it should be four bytes: 02 02 00 00
// (and, must be present).
Exiv2::Value::AutoPtr Value = Exiv2::Value::create(Exiv2::unsignedByte);
Value->read("2 2 0 0");
ExifToWrite.add(Exiv2::ExifKey("Exif.GPSInfo.GPSVersionID"), Value.get());
// Datum: the datum of the measured data. The default is WGS-84.
if (*Datum)
ExifToWrite["Exif.GPSInfo.GPSMapDatum"] = Datum;
// Now start adding data.
// ALTITUDE.
// If no altitude was found in the GPX file, ElevDecimals will be -1
if (Point->ElevDecimals >= 0) {
// Altitude reference: byte "00" meaning "sea level".
// Or "01" if the altitude value is negative.
Value = Exiv2::Value::create(Exiv2::unsignedByte);
if (Point->Elev >= 0)
{
Value->read("0");
} else {
Value->read("1");
}
ExifToWrite.add(Exiv2::ExifKey("Exif.GPSInfo.GPSAltitudeRef"), Value.get());
// And the actual altitude.
Value = Exiv2::Value::create(Exiv2::unsignedRational);
// 3 decimal points is beyond the limit of current GPS technology
int Decimals = MIN(Point->ElevDecimals, 3);
ConvertToRational(fabs(Point->Elev), Decimals, ScratchBuf, sizeof(ScratchBuf));
/* printf("Altitude: %f -> %s\n", Point->Elev, ScratchBuf); */
Value->read(ScratchBuf);
ExifToWrite.add(Exiv2::ExifKey("Exif.GPSInfo.GPSAltitude"), Value.get());
}
// LATITUDE
// Latitude reference: "N" or "S".
if (Point->Lat < 0)
{
// Less than Zero: ie, minus: means
// Southern hemisphere. Where I live.
ExifToWrite["Exif.GPSInfo.GPSLatitudeRef"] = "S";
} else {
// More than Zero: ie, plus: means
// Northern hemisphere.
ExifToWrite["Exif.GPSInfo.GPSLatitudeRef"] = "N";
}
// Now the actual latitude itself.
// The original comment read:
// This is done as three rationals.
// I choose to do it as:
// dd/1 - degrees.
// mmmm/100 - minutes
// 0/1 - seconds
// Exif standard says you can do it with minutes
// as mm/1 and then seconds as ss/1, but its
// (slightly) more accurate to do it as
// mmmm/100 than to split it.
// We also absolute the value (with fabs())
// as the sign is encoded in LatRef.
// Further note: original code did not translate between
// dd.dddddd to dd mm.mm - that's why we now multiply
// by 60*N - x60 to get minutes, xN to get to mmmm/N.
// N is 10^S where S is the number of significant decimal
// places.
//
// Rereading the EXIF standard, it's quite ok to do DD MM SS.SS
// Which is much more accurate. This is the new default, unless otherwise
// set.
Value = Exiv2::Value::create(Exiv2::unsignedRational);
if (DegMinSecs)
{
ConvertToLatLongRational(Point->Lat, Point->LatDecimals, ScratchBuf, sizeof(ScratchBuf));
} else {
ConvertToOldLatLongRational(Point->Lat, ScratchBuf, sizeof(ScratchBuf));
}
Value->read(ScratchBuf);
ExifToWrite.add(Exiv2::ExifKey("Exif.GPSInfo.GPSLatitude"), Value.get());
// LONGITUDE
// Longitude reference: "E" or "W".
if (Point->Long < 0)
{
// Less than Zero: ie, minus: means
// Western hemisphere.
ExifToWrite["Exif.GPSInfo.GPSLongitudeRef"] = "W";
} else {
// More than Zero: ie, plus: means
// Eastern hemisphere. Where I live.
ExifToWrite["Exif.GPSInfo.GPSLongitudeRef"] = "E";
}
// Now the actual longitude itself, in the same way as latitude
Value = Exiv2::Value::create(Exiv2::unsignedRational);
if (DegMinSecs)
{
ConvertToLatLongRational(Point->Long, Point->LongDecimals, ScratchBuf, sizeof(ScratchBuf));
} else {
ConvertToOldLatLongRational(Point->Long, ScratchBuf, sizeof(ScratchBuf));
}
Value->read(ScratchBuf);
ExifToWrite.add(Exiv2::ExifKey("Exif.GPSInfo.GPSLongitude"), Value.get());
// The timestamp.
// Make up the timestamp...
// The timestamp is taken as the UTC time of the photo.
// If interpolation occurred, then this time is the time of the photo.
struct tm TimeStamp = *gmtime(&(Point->Time));
Value = Exiv2::Value::create(Exiv2::unsignedRational);
snprintf(ScratchBuf, sizeof(ScratchBuf), "%d/1 %d/1 %d/1",
TimeStamp.tm_hour, TimeStamp.tm_min,
TimeStamp.tm_sec);
Value->read(ScratchBuf);
ExifToWrite.add(Exiv2::ExifKey("Exif.GPSInfo.GPSTimeStamp"), Value.get());
// And we should also do a datestamp.
snprintf(ScratchBuf, sizeof(ScratchBuf), "%04d:%02d:%02d",
TimeStamp.tm_year + 1900,
TimeStamp.tm_mon + 1,
TimeStamp.tm_mday);
ExifToWrite["Exif.GPSInfo.GPSDateStamp"] = ScratchBuf;
// Write the data to file.
try {
Image->writeMetadata();
} catch (Exiv2::Error e) {
DEBUGLOG("Failed to write to file %s.\n", File);
return 0;
}
if (NoChangeMtime)
{
stat(File, &statbuf2);
utb.actime = statbuf2.st_atime;
utb.modtime = statbuf.st_mtime;
utime(File, &utb);
}
return 1;
}
int main()
try {
// The XMP property container
Exiv2::XmpData xmpData;
// -------------------------------------------------------------------------
// Teaser: Setting XMP properties doesn't get much easier than this:
xmpData["Xmp.dc.source"] = "xmpsample.cpp"; // a simple text value
xmpData["Xmp.dc.subject"] = "Palmtree"; // an array item
xmpData["Xmp.dc.subject"] = "Rubbertree"; // add a 2nd array item
// a language alternative with two entries and without default
xmpData["Xmp.dc.title"] = "lang=de-DE Sonnenuntergang am Strand";
xmpData["Xmp.dc.title"] = "lang=en-US Sunset on the beach";
// -------------------------------------------------------------------------
// Any properties can be set provided the namespace is known. Values of any
// type can be assigned to an Xmpdatum, if they have an output operator. The
// default XMP value type for unknown properties is a simple text value.
xmpData["Xmp.dc.one"] = -1;
xmpData["Xmp.dc.two"] = 3.1415;
xmpData["Xmp.dc.three"] = Exiv2::Rational(5, 7);
xmpData["Xmp.dc.four"] = uint16_t(255);
xmpData["Xmp.dc.five"] = int32_t(256);
xmpData["Xmp.dc.six"] = false;
// In addition, there is a dedicated assignment operator for Exiv2::Value
Exiv2::XmpTextValue val("Seven");
xmpData["Xmp.dc.seven"] = val;
xmpData["Xmp.dc.eight"] = true;
// Extracting values
assert(xmpData["Xmp.dc.one"].toLong() == -1);
assert(xmpData["Xmp.dc.one"].value().ok());
const Exiv2::Value &getv1 = xmpData["Xmp.dc.one"].value();
assert(isEqual(getv1.toFloat(), -1));
assert(getv1.ok());
assert(getv1.toRational() == Exiv2::Rational(-1, 1));
assert(getv1.ok());
const Exiv2::Value &getv2 = xmpData["Xmp.dc.two"].value();
assert(isEqual(getv2.toFloat(), 3.1415f));
assert(getv2.ok());
assert(getv2.toLong() == 3);
assert(getv2.ok());
Exiv2::Rational R = getv2.toRational();
assert(getv2.ok());
assert(isEqual(static_cast<float>(R.first) / R.second, 3.1415f ));
const Exiv2::Value &getv3 = xmpData["Xmp.dc.three"].value();
assert(isEqual(getv3.toFloat(), 5.0f/7.0f));
assert(getv3.ok());
assert(getv3.toLong() == 0); // long(5.0 / 7.0)
assert(getv3.ok());
assert(getv3.toRational() == Exiv2::Rational(5, 7));
assert(getv3.ok());
const Exiv2::Value &getv6 = xmpData["Xmp.dc.six"].value();
assert(getv6.toLong() == 0);
assert(getv6.ok());
assert(getv6.toFloat() == 0.0);
assert(getv6.ok());
assert(getv6.toRational() == Exiv2::Rational(0, 1));
assert(getv6.ok());
const Exiv2::Value &getv7 = xmpData["Xmp.dc.seven"].value();
getv7.toLong(); // this should fail
assert(!getv7.ok());
const Exiv2::Value &getv8 = xmpData["Xmp.dc.eight"].value();
assert(getv8.toLong() == 1);
assert(getv8.ok());
assert(getv8.toFloat() == 1.0);
assert(getv8.ok());
assert(getv8.toRational() == Exiv2::Rational(1, 1));
assert(getv8.ok());
// Deleting an XMP property
Exiv2::XmpData::iterator pos = xmpData.findKey(Exiv2::XmpKey("Xmp.dc.eight"));
if (pos == xmpData.end()) throw Exiv2::Error(1, "Key not found");
xmpData.erase(pos);
// -------------------------------------------------------------------------
// Exiv2 has specialized values for simple XMP properties, arrays of simple
// properties and language alternatives.
// Add a simple XMP property in a known namespace
Exiv2::Value::AutoPtr v = Exiv2::Value::create(Exiv2::xmpText);
v->read("image/jpeg");
xmpData.add(Exiv2::XmpKey("Xmp.dc.format"), v.get());
// Add an ordered array of text values.
v = Exiv2::Value::create(Exiv2::xmpSeq); // or xmpBag or xmpAlt.
v->read("1) The first creator"); // The sequence in which the array
v->read("2) The second creator"); // elements are added is their
v->read("3) And another one"); // order in the array.
xmpData.add(Exiv2::XmpKey("Xmp.dc.creator"), v.get());
// Add a language alternative property
v = Exiv2::Value::create(Exiv2::langAlt);
v->read("lang=de-DE Hallo, Welt"); // The default doesn't need a
v->read("Hello, World"); // qualifier
xmpData.add(Exiv2::XmpKey("Xmp.dc.description"), v.get());
// According to the XMP specification, Xmp.tiff.ImageDescription is an
// alias for Xmp.dc.description. Exiv2 treats an alias just like any
// other property and leaves it to the application to implement specific
// behaviour if desired.
xmpData["Xmp.tiff.ImageDescription"] = "TIFF image description";
xmpData["Xmp.tiff.ImageDescription"] = "lang=de-DE TIFF Bildbeschreibung";
// -------------------------------------------------------------------------
// Register a namespace which Exiv2 doesn't know yet. This is only needed
// when properties are added manually. If the XMP metadata is read from an
// image, namespaces are decoded and registered at the same time.
Exiv2::XmpProperties::registerNs("myNamespace/", "ns");
// -------------------------------------------------------------------------
// Add a property in the new custom namespace.
xmpData["Xmp.ns.myProperty"] = "myValue";
// -------------------------------------------------------------------------
// There are no specialized values for structures, qualifiers and nested
// types. However, these can be added by using an XmpTextValue and a path as
// the key.
// Add a structure
Exiv2::XmpTextValue tv("16");
xmpData.add(Exiv2::XmpKey("Xmp.xmpDM.videoFrameSize/stDim:w"), &tv);
tv.read("9");
xmpData.add(Exiv2::XmpKey("Xmp.xmpDM.videoFrameSize/stDim:h"), &tv);
tv.read("inch");
xmpData.add(Exiv2::XmpKey("Xmp.xmpDM.videoFrameSize/stDim:unit"), &tv);
// Add an element with a qualifier (using the namespace registered above)
xmpData["Xmp.dc.publisher"] = "James Bond"; // creates an unordered array
xmpData["Xmp.dc.publisher[1]/?ns:role"] = "secret agent";
// Add a qualifer to an array element of Xmp.dc.creator (added above)
tv.read("programmer");
xmpData.add(Exiv2::XmpKey("Xmp.dc.creator[2]/?ns:role"), &tv);
// Add an array of structures
tv.read(""); // Clear the value
tv.setXmpArrayType(Exiv2::XmpValue::xaBag);
xmpData.add(Exiv2::XmpKey("Xmp.xmpBJ.JobRef"), &tv); // Set the array type.
tv.setXmpArrayType(Exiv2::XmpValue::xaNone);
tv.read("Birthday party");
xmpData.add(Exiv2::XmpKey("Xmp.xmpBJ.JobRef[1]/stJob:name"), &tv);
tv.read("Photographer");
xmpData.add(Exiv2::XmpKey("Xmp.xmpBJ.JobRef[1]/stJob:role"), &tv);
tv.read("Wedding ceremony");
xmpData.add(Exiv2::XmpKey("Xmp.xmpBJ.JobRef[2]/stJob:name"), &tv);
tv.read("Best man");
xmpData.add(Exiv2::XmpKey("Xmp.xmpBJ.JobRef[2]/stJob:role"), &tv);
// -------------------------------------------------------------------------
// Output XMP properties
for (Exiv2::XmpData::const_iterator md = xmpData.begin();
md != xmpData.end(); ++md) {
std::cout << std::setfill(' ') << std::left
<< std::setw(44)
<< md->key() << " "
<< std::setw(9) << std::setfill(' ') << std::left
<< md->typeName() << " "
<< std::dec << std::setw(3)
<< std::setfill(' ') << std::right
<< md->count() << " "
<< std::dec << md->value()
<< std::endl;
}
// -------------------------------------------------------------------------
// Serialize the XMP data and output the XMP packet
std::string xmpPacket;
if (0 != Exiv2::XmpParser::encode(xmpPacket, xmpData)) {
throw Exiv2::Error(1, "Failed to serialize XMP data");
}
std::cout << xmpPacket << "\n";
// Cleanup
Exiv2::XmpParser::terminate();
return 0;
}
catch (Exiv2::AnyError& e) {
std::cout << "Caught Exiv2 exception '" << e << "'\n";
return -1;
}
bool KExiv2::setImageDateTime(const QDateTime& dateTime, bool setDateTimeDigitized, bool setProgramName) const
{
if(!dateTime.isValid())
return false;
if (!setProgramId(setProgramName))
return false;
try
{
// In first we write date & time into Exif.
// DateTimeDigitized is set by slide scanners etc. when a picture is digitized.
// DateTimeOriginal specifies the date/time when the picture was taken.
// For digital cameras, these dates should be both set, and identical.
// Reference: http://www.exif.org/Exif2-2.PDF, chapter 4.6.5, table 4, section F.
const std::string &exifdatetime(dateTime.toString(QString("yyyy:MM:dd hh:mm:ss")).toAscii().constData());
d->exifMetadata()["Exif.Image.DateTime"] = exifdatetime;
d->exifMetadata()["Exif.Photo.DateTimeOriginal"] = exifdatetime;
if(setDateTimeDigitized)
d->exifMetadata()["Exif.Photo.DateTimeDigitized"] = exifdatetime;
#ifdef _XMP_SUPPORT_
// In second we write date & time into Xmp.
const std::string &xmpdatetime(dateTime.toString(Qt::ISODate).toAscii().constData());
Exiv2::Value::AutoPtr xmpTxtVal = Exiv2::Value::create(Exiv2::xmpText);
xmpTxtVal->read(xmpdatetime);
d->xmpMetadata().add(Exiv2::XmpKey("Xmp.exif.DateTimeOriginal"), xmpTxtVal.get());
d->xmpMetadata().add(Exiv2::XmpKey("Xmp.photoshop.DateCreated"), xmpTxtVal.get());
d->xmpMetadata().add(Exiv2::XmpKey("Xmp.tiff.DateTime"), xmpTxtVal.get());
d->xmpMetadata().add(Exiv2::XmpKey("Xmp.xmp.CreateDate"), xmpTxtVal.get());
d->xmpMetadata().add(Exiv2::XmpKey("Xmp.xmp.MetadataDate"), xmpTxtVal.get());
d->xmpMetadata().add(Exiv2::XmpKey("Xmp.xmp.ModifyDate"), xmpTxtVal.get());
if(setDateTimeDigitized)
d->xmpMetadata().add(Exiv2::XmpKey("Xmp.exif.DateTimeDigitized"), xmpTxtVal.get());
// Tag not updated:
// "Xmp.dc.DateTime" is a sequence of date relevant of dublin core change.
// This is not the picture date as well
#endif // _XMP_SUPPORT_
// In third we write date & time into Iptc.
const std::string &iptcdate(dateTime.date().toString(Qt::ISODate).toAscii().constData());
const std::string &iptctime(dateTime.time().toString(Qt::ISODate).toAscii().constData());
d->iptcMetadata()["Iptc.Application2.DateCreated"] = iptcdate;
d->iptcMetadata()["Iptc.Application2.TimeCreated"] = iptctime;
if(setDateTimeDigitized)
{
d->iptcMetadata()["Iptc.Application2.DigitizationDate"] = iptcdate;
d->iptcMetadata()["Iptc.Application2.DigitizationTime"] = iptctime;
}
return true;
}
catch( Exiv2::Error& e )
{
d->printExiv2ExceptionError("Cannot set Date & Time into image using Exiv2 ", e);
}
catch(...)
{
kError() << "Default exception from Exiv2";
}
return false;
}
// Overwrites existing value if found, otherwise creates a new one.
// Passing invalidTypeId causes the type to be guessed.
// Guessing types is accurate for IPTC, but not for EXIF.
// Returns 0 on success
EXIVSIMPLE_API int ModifyMeta(HIMAGE img, const char *key, const char *val, DllTypeId type)
{
assert(img && key && val);
if (img==0 || key==0 || val==0) return -1;
ImageWrapper *imgWrap = (ImageWrapper*)img;
int rc = 2;
Exiv2::IptcData &iptcData = imgWrap->image->iptcData();
Exiv2::ExifData &exifData = imgWrap->image->exifData();
std::string data(val);
// if data starts and ends with quotes, remove them
if (data.at(0) == '\"' && data.at(data.size()-1) == '\"') {
data = data.substr(1, data.size()-2);
}
try {
Exiv2::IptcKey iptcKey(key);
rc = 1;
if (type == invalidTypeId)
type = (DllTypeId)Exiv2::IptcDataSets::dataSetType(iptcKey.tag(), iptcKey.record());
Exiv2::Value::AutoPtr value = Exiv2::Value::create((Exiv2::TypeId)type);
value->read(data);
Exiv2::IptcData::iterator iter = iptcData.findKey(iptcKey);
if (iter != iptcData.end()) {
iter->setValue(value.get());
rc = 0;
}
else {
rc = iptcData.add(iptcKey, value.get());
}
}
catch(const Exiv2::AnyError&) {
}
if (rc) {
// Failed with iptc, so try exif
try {
Exiv2::ExifKey exifKey(key);
rc = 1;
// No way to get value type for exif... string is the most common
if (type == invalidTypeId)
type = asciiString;
Exiv2::Value::AutoPtr value = Exiv2::Value::create((Exiv2::TypeId)type);
value->read(data);
Exiv2::ExifData::iterator iter = exifData.findKey(exifKey);
if (iter != exifData.end()) {
iter->setValue(value.get());
rc = 0;
}
else {
exifData.add(exifKey, value.get());
rc = 0;
}
}
catch(const Exiv2::AnyError&) {
}
}
return rc;
}
void AsfVideo::metadataHandler(int meta)
{
DataBuf buf(5000);
io_->read(buf.pData_, 2);
int recordCount = Exiv2::getUShort(buf.pData_, littleEndian), nameLength = 0, dataLength = 0, dataType = 0;
Exiv2::Value::AutoPtr v = Exiv2::Value::create(Exiv2::xmpSeq);
byte guidBuf[16]; char fileID[37] = "";
while(recordCount--) {
std::memset(buf.pData_, 0x0, buf.size_);
if(meta == 1 || meta == 3) {
io_->read(buf.pData_, 4);
io_->read(buf.pData_, 2);
nameLength = Exiv2::getUShort(buf.pData_, littleEndian);
io_->read(buf.pData_, 2);
dataType = Exiv2::getUShort(buf.pData_, littleEndian);
io_->read(buf.pData_, 4);
dataLength = Exiv2::getULong(buf.pData_, littleEndian);
if (nameLength > 5000) {
#ifndef SUPPRESS_WARNINGS
EXV_ERROR << "Xmp.video.Metadata nameLength was found to be larger than 5000 "
<< " entries considered invalid; not read.\n";
#endif
io_->seek(io_->tell() + nameLength, BasicIo::beg);
}
else
io_->read(buf.pData_, nameLength);
v->read(toString16(buf));
if(dataType == 6) {
io_->read(guidBuf, 16);
getGUID(guidBuf, fileID);
}
else
// Sanity check with an "unreasonably" large number
if (dataLength > 5000) {
#ifndef SUPPRESS_WARNINGS
EXV_ERROR << "Xmp.video.Metadata dataLength was found to be larger than 5000 "
<< " entries considered invalid; not read.\n";
#endif
io_->seek(io_->tell() + dataLength, BasicIo::beg);
}
else
io_->read(buf.pData_, dataLength);
}
else if(meta == 2) {
io_->read(buf.pData_, 2);
nameLength = Exiv2::getUShort(buf.pData_, littleEndian);
if (nameLength > 5000) {
#ifndef SUPPRESS_WARNINGS
EXV_ERROR << "Xmp.video.Metadata nameLength was found to be larger than 5000 "
<< " entries considered invalid; not read.\n";
#endif
io_->seek(io_->tell() + nameLength, BasicIo::beg);
}
else
io_->read(buf.pData_, nameLength);
v->read(toString16(buf));
io_->read(buf.pData_, 2);
dataType = Exiv2::getUShort(buf.pData_, littleEndian);
io_->read(buf.pData_, 2);
dataLength = Exiv2::getUShort(buf.pData_, littleEndian);
// Sanity check with an "unreasonably" large number
if (dataLength > 5000) {
#ifndef SUPPRESS_WARNINGS
EXV_ERROR << "Xmp.video.Metadata dataLength was found to be larger than 5000 "
<< " entries considered invalid; not read.\n";
#endif
io_->seek(io_->tell() + dataLength, BasicIo::beg);
}
else
io_->read(buf.pData_, dataLength);
}
if(dataType == 0) { // Unicode String
v->read(toString16(buf));
}
else if(dataType == 2 || dataType == 5) { // 16-bit Unsigned Integer
v->read( Exiv2::toString( Exiv2::getUShort(buf.pData_, littleEndian)));
}
else if(dataType == 3) { // 32-bit Unsigned Integer
v->read( Exiv2::toString( Exiv2::getULong( buf.pData_, littleEndian)));
}
else if(dataType == 4) { // 64-bit Unsigned Integer
v->read(Exiv2::toString(getUint64_t(buf)));
}
else if(dataType == 6) { // 128-bit GUID
v->read(Exiv2::toString(fileID));
}
else { // Byte array
v->read( Exiv2::toString(buf.pData_));
}
}
if(meta == 1) {
xmpData_.add(Exiv2::XmpKey("Xmp.video.Metadata"), v.get());
}
else if(meta == 2) {
xmpData_.add(Exiv2::XmpKey("Xmp.video.ExtendedContentDescription"), v.get());
}
else {
xmpData_.add(Exiv2::XmpKey("Xmp.video.MetadataLibrary"), v.get());
}
} // AsfVideo::metadataHandler
void AsfVideo::tagDecoder(const TagVocabulary *tv, uint64_t size)
{
uint64_t cur_pos = io_->tell();
DataBuf buf(1000);
unsigned long count = 0, tempLength = 0;
buf.pData_[4] = '\0' ;
Exiv2::Value::AutoPtr v = Exiv2::Value::create(Exiv2::xmpSeq);
if(compareTag( exvGettext(tv->label_), "Header")) {
localPosition_ = 0;
io_->read(buf.pData_, 4);
io_->read(buf.pData_, 2);
while(localPosition_ < cur_pos + size) decodeBlock();
}
else if(compareTag( exvGettext(tv->label_), "File_Properties"))
fileProperties();
else if(compareTag( exvGettext(tv->label_), "Stream_Properties"))
streamProperties();
else if(compareTag( exvGettext(tv->label_), "Metadata"))
metadataHandler(1);
else if(compareTag( exvGettext(tv->label_), "Extended_Content_Description"))
metadataHandler(2);
else if(compareTag( exvGettext(tv->label_), "Metadata_Library"))
metadataHandler(3);
else if(compareTag( exvGettext(tv->label_), "Codec_List"))
codecList();
else if(compareTag( exvGettext(tv->label_), "Content_Description"))
contentDescription(size);
else if(compareTag( exvGettext(tv->label_), "Extended_Stream_Properties"))
extendedStreamProperties(size);
else if(compareTag( exvGettext(tv->label_), "Header_Extension")) {
localPosition_ = 0;
headerExtension(size);
}
else if(compareTag( exvGettext(tv->label_), "Language_List")) {
std::memset(buf.pData_, 0x0, buf.size_);
io_->read(buf.pData_, 2);
count = Exiv2::getUShort(buf.pData_, littleEndian);
while(count--) {
std::memset(buf.pData_, 0x0, buf.size_);
io_->read(buf.pData_, 1); tempLength = (int)buf.pData_[0];
io_->read(buf.pData_, tempLength);
v->read(toString16(buf));
}
xmpData_.add(Exiv2::XmpKey("Xmp.video.TrackLang"), v.get());
}
io_->seek(cur_pos + size, BasicIo::beg);
localPosition_ = io_->tell();
} // AsfVideo::tagDecoder
