示例#1
0
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();
}
示例#2
0
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();
}