QDateTime KExiv2::getImageDateTime() const
{
try
{
// In first, trying to get Date & time from Exif tags.
if (!d->exifMetadata().empty())
{
Exiv2::ExifData exifData(d->exifMetadata());
{
Exiv2::ExifKey key("Exif.Photo.DateTimeOriginal");
Exiv2::ExifData::iterator it = exifData.findKey(key);
if (it != exifData.end())
{
QDateTime dateTime = QDateTime::fromString(it->toString().c_str(), Qt::ISODate);
if (dateTime.isValid())
{
kDebug() << "DateTime => Exif.Photo.DateTimeOriginal => " << dateTime;
return dateTime;
}
}
}
{
Exiv2::ExifKey key("Exif.Photo.DateTimeDigitized");
Exiv2::ExifData::iterator it = exifData.findKey(key);
if (it != exifData.end())
{
QDateTime dateTime = QDateTime::fromString(it->toString().c_str(), Qt::ISODate);
if (dateTime.isValid())
{
kDebug() << "DateTime => Exif.Photo.DateTimeDigitized => " << dateTime;
return dateTime;
}
}
}
{
Exiv2::ExifKey key("Exif.Image.DateTime");
Exiv2::ExifData::iterator it = exifData.findKey(key);
if (it != exifData.end())
{
QDateTime dateTime = QDateTime::fromString(it->toString().c_str(), Qt::ISODate);
if (dateTime.isValid())
{
kDebug() << "DateTime => Exif.Image.DateTime => " << dateTime;
return dateTime;
}
}
}
}
// In second, trying to get Date & time from Xmp tags.
#ifdef _XMP_SUPPORT_
if (!d->xmpMetadata().empty())
{
Exiv2::XmpData xmpData(d->xmpMetadata());
{
Exiv2::XmpKey key("Xmp.exif.DateTimeOriginal");
Exiv2::XmpData::iterator it = xmpData.findKey(key);
if (it != xmpData.end())
{
QDateTime dateTime = QDateTime::fromString(it->toString().c_str(), Qt::ISODate);
if (dateTime.isValid())
{
kDebug() << "DateTime => Xmp.exif.DateTimeOriginal => " << dateTime;
return dateTime;
}
}
}
{
Exiv2::XmpKey key("Xmp.exif.DateTimeDigitized");
Exiv2::XmpData::iterator it = xmpData.findKey(key);
if (it != xmpData.end())
{
QDateTime dateTime = QDateTime::fromString(it->toString().c_str(), Qt::ISODate);
if (dateTime.isValid())
{
kDebug() << "DateTime => Xmp.exif.DateTimeDigitized => " << dateTime;
return dateTime;
}
}
}
{
Exiv2::XmpKey key("Xmp.photoshop.DateCreated");
Exiv2::XmpData::iterator it = xmpData.findKey(key);
if (it != xmpData.end())
{
QDateTime dateTime = QDateTime::fromString(it->toString().c_str(), Qt::ISODate);
if (dateTime.isValid())
{
kDebug() << "DateTime => Xmp.photoshop.DateCreated => " << dateTime;
return dateTime;
}
}
}
{
Exiv2::XmpKey key("Xmp.xmp.CreateDate");
Exiv2::XmpData::iterator it = xmpData.findKey(key);
if (it != xmpData.end())
{
QDateTime dateTime = QDateTime::fromString(it->toString().c_str(), Qt::ISODate);
if (dateTime.isValid())
{
kDebug() << "DateTime => Xmp.xmp.CreateDate => " << dateTime;
return dateTime;
}
}
}
{
Exiv2::XmpKey key("Xmp.tiff.DateTime");
Exiv2::XmpData::iterator it = xmpData.findKey(key);
if (it != xmpData.end())
{
QDateTime dateTime = QDateTime::fromString(it->toString().c_str(), Qt::ISODate);
if (dateTime.isValid())
{
kDebug() << "DateTime => Xmp.tiff.DateTime => " << dateTime;
return dateTime;
}
}
}
{
Exiv2::XmpKey key("Xmp.xmp.ModifyDate");
Exiv2::XmpData::iterator it = xmpData.findKey(key);
if (it != xmpData.end())
{
QDateTime dateTime = QDateTime::fromString(it->toString().c_str(), Qt::ISODate);
if (dateTime.isValid())
{
kDebug() << "DateTime => Xmp.xmp.ModifyDate => " << dateTime;
return dateTime;
}
}
}
{
Exiv2::XmpKey key("Xmp.xmp.MetadataDate");
Exiv2::XmpData::iterator it = xmpData.findKey(key);
if (it != xmpData.end())
{
QDateTime dateTime = QDateTime::fromString(it->toString().c_str(), Qt::ISODate);
if (dateTime.isValid())
{
kDebug() << "DateTime => Xmp.xmp.MetadataDate => " << dateTime;
return dateTime;
}
}
}
}
#endif // _XMP_SUPPORT_
// In third, trying to get Date & time from Iptc tags.
if (!d->iptcMetadata().empty())
{
Exiv2::IptcData iptcData(d->iptcMetadata());
// Try creation Iptc date & time entries.
Exiv2::IptcKey keyDateCreated("Iptc.Application2.DateCreated");
Exiv2::IptcData::iterator it = iptcData.findKey(keyDateCreated);
if (it != iptcData.end())
{
QString IptcDateCreated(it->toString().c_str());
Exiv2::IptcKey keyTimeCreated("Iptc.Application2.TimeCreated");
Exiv2::IptcData::iterator it2 = iptcData.findKey(keyTimeCreated);
if (it2 != iptcData.end())
{
QString IptcTimeCreated(it2->toString().c_str());
QDate date = QDate::fromString(IptcDateCreated, Qt::ISODate);
QTime time = QTime::fromString(IptcTimeCreated, Qt::ISODate);
QDateTime dateTime = QDateTime(date, time);
if (dateTime.isValid())
{
kDebug() << "DateTime => Iptc.Application2.DateCreated => " << dateTime;
return dateTime;
}
}
}
// Try digitization Iptc date & time entries.
Exiv2::IptcKey keyDigitizationDate("Iptc.Application2.DigitizationDate");
Exiv2::IptcData::iterator it3 = iptcData.findKey(keyDigitizationDate);
if (it3 != iptcData.end())
{
QString IptcDateDigitization(it3->toString().c_str());
Exiv2::IptcKey keyDigitizationTime("Iptc.Application2.DigitizationTime");
Exiv2::IptcData::iterator it4 = iptcData.findKey(keyDigitizationTime);
if (it4 != iptcData.end())
{
QString IptcTimeDigitization(it4->toString().c_str());
QDate date = QDate::fromString(IptcDateDigitization, Qt::ISODate);
QTime time = QTime::fromString(IptcTimeDigitization, Qt::ISODate);
QDateTime dateTime = QDateTime(date, time);
if (dateTime.isValid())
{
kDebug() << "DateTime => Iptc.Application2.DigitizationDate => " << dateTime;
return dateTime;
}
}
}
}
}
catch( Exiv2::Error& e )
{
d->printExiv2ExceptionError("Cannot parse Exif date & time tag using Exiv2 ", e);
}
catch(...)
{
kError() << "Default exception from Exiv2";
}
return QDateTime();
}
QDateTime KExiv2::getDigitizationDateTime(bool fallbackToCreationTime) const
{
try
{
// In first, trying to get Date & time from Exif tags.
if (!d->exifMetadata().empty())
{
// Try Exif date time digitized.
Exiv2::ExifData exifData(d->exifMetadata());
Exiv2::ExifKey key("Exif.Photo.DateTimeDigitized");
Exiv2::ExifData::iterator it = exifData.findKey(key);
if (it != exifData.end())
{
QDateTime dateTime = QDateTime::fromString(it->toString().c_str(), Qt::ISODate);
if (dateTime.isValid())
{
kDebug() << "DateTime (Exif digitalized): " << dateTime.toString().toAscii().constData();
return dateTime;
}
}
}
// In second, trying to get Date & time from Iptc tags.
if (!d->iptcMetadata().empty())
{
// Try digitization Iptc date time entries.
Exiv2::IptcData iptcData(d->iptcMetadata());
Exiv2::IptcKey keyDigitizationDate("Iptc.Application2.DigitizationDate");
Exiv2::IptcData::iterator it = iptcData.findKey(keyDigitizationDate);
if (it != iptcData.end())
{
QString IptcDateDigitization(it->toString().c_str());
Exiv2::IptcKey keyDigitizationTime("Iptc.Application2.DigitizationTime");
Exiv2::IptcData::iterator it2 = iptcData.findKey(keyDigitizationTime);
if (it2 != iptcData.end())
{
QString IptcTimeDigitization(it2->toString().c_str());
QDate date = QDate::fromString(IptcDateDigitization, Qt::ISODate);
QTime time = QTime::fromString(IptcTimeDigitization, Qt::ISODate);
QDateTime dateTime = QDateTime(date, time);
if (dateTime.isValid())
{
kDebug() << "Date (IPTC digitalized): " << dateTime.toString().toAscii().constData();
return dateTime;
}
}
}
}
}
catch( Exiv2::Error& e )
{
d->printExiv2ExceptionError("Cannot parse Exif digitization date & time tag using Exiv2 ", e);
}
catch(...)
{
kError() << "Default exception from Exiv2";
}
if (fallbackToCreationTime)
return getImageDateTime();
else
return QDateTime();
}
QDateTime MetaEngine::getDigitizationDateTime(bool fallbackToCreationTime) const
{
try
{
// In first, trying to get Date & time from Exif tags.
if (!d->exifMetadata().empty())
{
// Try Exif date time digitized.
Exiv2::ExifData exifData(d->exifMetadata());
Exiv2::ExifKey key("Exif.Photo.DateTimeDigitized");
Exiv2::ExifData::iterator it = exifData.findKey(key);
if (it != exifData.end())
{
QDateTime dateTime = QDateTime::fromString(QString::fromLatin1(it->toString().c_str()), Qt::ISODate);
if (dateTime.isValid())
{
qCDebug(DIGIKAM_METAENGINE_LOG) << "DateTime (Exif digitalized): " << dateTime.toString().toLatin1().constData();
return dateTime;
}
}
}
// In second, we trying XMP
#ifdef _XMP_SUPPORT_
if (!d->xmpMetadata().empty())
{
Exiv2::XmpData xmpData(d->xmpMetadata());
{
Exiv2::XmpKey key("Xmp.exif.DateTimeDigitized");
Exiv2::XmpData::iterator it = xmpData.findKey(key);
if (it != xmpData.end())
{
QDateTime dateTime = QDateTime::fromString(QString::fromLatin1(it->toString().c_str()), Qt::ISODate);
if (dateTime.isValid())
{
qCDebug(DIGIKAM_METAENGINE_LOG) << "DateTime (XMP-Exif digitalized): " << dateTime.toString().toLatin1().constData();
return dateTime;
}
}
}
{
Exiv2::XmpKey key("Xmp.video.DateTimeDigitized");
Exiv2::XmpData::iterator it = xmpData.findKey(key);
if (it != xmpData.end())
{
QDateTime dateTime = QDateTime::fromString(QString::fromLatin1(it->toString().c_str()), Qt::ISODate);
if (dateTime.isValid())
{
qCDebug(DIGIKAM_METAENGINE_LOG) << "DateTime (XMP-Video digitalized): " << dateTime.toString().toLatin1().constData();
return dateTime;
}
}
}
}
#endif // _XMP_SUPPORT_
// In third, trying to get Date & time from Iptc tags.
if (!d->iptcMetadata().empty())
{
// Try digitization Iptc date time entries.
Exiv2::IptcData iptcData(d->iptcMetadata());
Exiv2::IptcKey keyDigitizationDate("Iptc.Application2.DigitizationDate");
Exiv2::IptcData::iterator it = iptcData.findKey(keyDigitizationDate);
if (it != iptcData.end())
{
QString IptcDateDigitization(QString::fromLatin1(it->toString().c_str()));
Exiv2::IptcKey keyDigitizationTime("Iptc.Application2.DigitizationTime");
Exiv2::IptcData::iterator it2 = iptcData.findKey(keyDigitizationTime);
if (it2 != iptcData.end())
{
QString IptcTimeDigitization(QString::fromLatin1(it2->toString().c_str()));
QDate date = QDate::fromString(IptcDateDigitization, Qt::ISODate);
QTime time = QTime::fromString(IptcTimeDigitization, Qt::ISODate);
QDateTime dateTime = QDateTime(date, time);
if (dateTime.isValid())
{
qCDebug(DIGIKAM_METAENGINE_LOG) << "Date (IPTC digitalized): " << dateTime.toString().toLatin1().constData();
return dateTime;
}
}
}
}
}
catch( Exiv2::Error& e )
{
d->printExiv2ExceptionError(QString::fromLatin1("Cannot parse Exif digitization date & time tag using Exiv2 "), e);
}
catch(...)
{
qCCritical(DIGIKAM_METAENGINE_LOG) << "Default exception from Exiv2";
}
if (fallbackToCreationTime)
return getImageDateTime();
else
return QDateTime();
}
