Пример #1
0
// uses the exiv2 class to readout the exifdata from images
int ExifScout::showExifData(std::string a){
    try {
        Ui_MainWindow::textEdit->clear();
        std::cerr << "ImageFactory::open ";
        Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open(a);
        std::cerr << "DONE\n";
        assert(image.get() != 0);

        std::cerr << "image->readMetadata() ";
        image->readMetadata();
        std::cerr << "DONE\n";

        std::cerr << "Exiv2::ExifData& exifData = image->exifData() ";
        Exiv2::ExifData exifData = image->exifData();
        std::cerr << "DONE\n";

	cout << "Number of found exiv2 data: " << exifData.count() << endl;
        if (exifData.empty()) {
            Ui_MainWindow::textEdit->setPlainText("No Exif data found in file");
            return 1;
        }

        Exiv2::ExifData::const_iterator end = exifData.end();
        std::cerr << "Generate the exif-output ";
        QString output;
        for (Exiv2::ExifData::const_iterator i = exifData.begin(); i != end; ++i) {
            std::string tagname = i->tagName();

            if(tagname != std::string("MakerNote") and
               tagname.substr(0,2) != "0x"){
                // Print out the exif-data in the QtextEdit Field
                std::ostringstream oss;
                oss << i->tagName() << ":\n    " << i->value() << "\n";
                output = output+(QString)oss.str().c_str();
            }
        }
        std::cerr << "Done\n";
        Ui_MainWindow::textEdit->setPlainText(output);

        return 0;
    }
    //catch (std::exception& e) {
    //catch (Exiv2::AnyError& e) {
    catch (Exiv2::Error& e) {
        std::cout << "Caught Exiv2 exception '" << e.what() << "'\n";
        return -1;
    }
}
Пример #2
0
bool KisExifIO::loadFrom(KisMetaData::Store* store, QIODevice* ioDevice) const
{
    ioDevice->open(QIODevice::ReadOnly);
    if (!ioDevice->isOpen()) {
        return false;
    }
    QByteArray arr = ioDevice->readAll();
    Exiv2::ExifData exifData;
    Exiv2::ByteOrder byteOrder;
#if EXIV2_MAJOR_VERSION == 0 && EXIV2_MINOR_VERSION <= 17
    exifData.load((const Exiv2::byte*)arr.data(), arr.size());
    byteOrder = exifData.byteOrder();
#else
    try {
        byteOrder = Exiv2::ExifParser::decode(exifData, (const Exiv2::byte*)arr.data(), arr.size());
    }
    catch (const std::exception& ex) {
        warnKrita << "Received exception trying to parse exiv data" << ex.what();
        return false;
    }
    catch (...) {
        dbgKrita << "Received unknown exception trying to parse exiv data";
        return false;
    }

#endif
    dbgFile << "Byte order = " << byteOrder << ppVar(Exiv2::bigEndian) << ppVar(Exiv2::littleEndian);
    dbgFile << "There are" << exifData.count() << " entries in the exif section";
    const KisMetaData::Schema* tiffSchema = KisMetaData::SchemaRegistry::instance()->schemaFromUri(KisMetaData::Schema::TIFFSchemaUri);
    Q_ASSERT(tiffSchema);
    const KisMetaData::Schema* exifSchema = KisMetaData::SchemaRegistry::instance()->schemaFromUri(KisMetaData::Schema::EXIFSchemaUri);
    Q_ASSERT(exifSchema);
    const KisMetaData::Schema* dcSchema = KisMetaData::SchemaRegistry::instance()->schemaFromUri(KisMetaData::Schema::DublinCoreSchemaUri);
    Q_ASSERT(dcSchema);
    const KisMetaData::Schema* xmpSchema = KisMetaData::SchemaRegistry::instance()->schemaFromUri(KisMetaData::Schema::XMPSchemaUri);
    Q_ASSERT(xmpSchema);
    for (Exiv2::ExifMetadata::const_iterator it = exifData.begin();
            it != exifData.end(); ++it) {
        if (it->key() == "Exif.Photo.StripOffsets"
                || it->key() == "RowsPerStrip"
                || it->key() == "StripByteCounts"
                || it->key() == "JPEGInterchangeFormat"
                || it->key() == "JPEGInterchangeFormatLength"
                || it->tagName() == "0x0000" ) {
            dbgFile << it->key().c_str() << " is ignored";
        } else if (it->key() == "Exif.Photo.MakerNote") {
            const KisMetaData::Schema* makerNoteSchema = KisMetaData::SchemaRegistry::instance()->schemaFromUri(KisMetaData::Schema::MakerNoteSchemaUri);
            store->addEntry(KisMetaData::Entry(makerNoteSchema, "RawData", exivValueToKMDValue(it->getValue(), false)));
        } else if (it->key() == "Exif.Image.DateTime") { // load as xmp:ModifyDate
            store->addEntry(KisMetaData::Entry(xmpSchema, "ModifyDate", KisMetaData::Value(exivValueToDateTime(it->getValue()))));
        } else if (it->key() == "Exif.Image.ImageDescription") { // load as "dc:description"
            store->addEntry(KisMetaData::Entry(dcSchema, "description", exivValueToKMDValue(it->getValue(), false)));
        } else if (it->key() == "Exif.Image.Software") { // load as "xmp:CreatorTool"
            store->addEntry(KisMetaData::Entry(xmpSchema, "CreatorTool", exivValueToKMDValue(it->getValue(), false)));
        } else if (it->key() == "Exif.Image.Artist") { // load as dc:creator
            QList<KisMetaData::Value> creators;
            creators.push_back(exivValueToKMDValue(it->getValue(), false));
            store->addEntry(KisMetaData::Entry(dcSchema, "creator", KisMetaData::Value(creators, KisMetaData::Value::OrderedArray)));
        } else if (it->key() == "Exif.Image.Copyright") { // load as dc:rights
            store->addEntry(KisMetaData::Entry(dcSchema, "rights", exivValueToKMDValue(it->getValue(), false)));
        } else if (it->groupName() == "Image") {
            // Tiff tags
            QString fixedTN = it->tagName().c_str();
            if (it->key() == "Exif.Image.ExifTag") {
                dbgFile << "Ignoring " << it->key().c_str();
            } else if (KisMetaData::Entry::isValidName(fixedTN)) {
                store->addEntry(KisMetaData::Entry(tiffSchema, fixedTN, exivValueToKMDValue(it->getValue(), false))) ;
            } else {
                dbgFile << "Invalid tag name: " << fixedTN;
            }
        } else if (it->groupName() == "Photo" || (it->groupName() == "GPS")) {
            // Exif tags (and GPS tags)
            KisMetaData::Value v;
            if (it->key() == "Exif.Photo.ExifVersion" || it->key() == "Exif.Photo.FlashpixVersion") {
                v = exifVersionToKMDValue(it->getValue());
            } else if (it->key() == "Exif.Photo.FileSource") {
                v = KisMetaData::Value(3);
            } else if (it->key() == "Exif.Photo.SceneType") {
                v = KisMetaData::Value(1);
            } else if (it->key() == "Exif.Photo.ComponentsConfiguration") {
                v = exifArrayToKMDIntOrderedArray(it->getValue());
            } else if (it->key() == "Exif.Photo.OECF") {
                v = exifOECFToKMDOECFStructure(it->getValue(), byteOrder);
            } else if (it->key() == "Exif.Photo.DateTimeDigitized" || it->key() == "Exif.Photo.DateTimeOriginal") {
                v = KisMetaData::Value(exivValueToDateTime(it->getValue()));
            } else if (it->key() == "Exif.Photo.DeviceSettingDescription") {
                v = deviceSettingDescriptionExifToKMD(it->getValue());
            } else if (it->key() == "Exif.Photo.CFAPattern") {
                v = cfaPatternExifToKMD(it->getValue(), byteOrder);
            } else if (it->key() == "Exif.Photo.Flash") {
                v = flashExifToKMD(it->getValue());
            } else if (it->key() == "Exif.Photo.UserComment") {
                KisMetaData::Value vUC = exivValueToKMDValue(it->getValue(), false);
                Q_ASSERT(vUC.type() == KisMetaData::Value::Variant);
                QVariant commentVar = vUC.asVariant();
                QString comment;
                if (commentVar.type() == QVariant::String) {
                    comment = commentVar.toString();
                } else if (commentVar.type() == QVariant::ByteArray) {
                    const QByteArray commentString = commentVar.toByteArray();
                    comment = QString::fromLatin1(commentString.constData(), commentString.size());
                } else {
                    warnKrita << "KisExifIO: Unhandled UserComment value type.";
                }
                KisMetaData::Value vcomment(comment);
                vcomment.addPropertyQualifier("xml:lang", KisMetaData::Value("x-default"));
                QList<KisMetaData::Value> alt;
                alt.append(vcomment);
                v = KisMetaData::Value(alt, KisMetaData::Value::LangArray);
            } else {
                bool forceSeq = false;
                KisMetaData::Value::ValueType arrayType = KisMetaData::Value::UnorderedArray;
                if (it->key() == "Exif.Photo.ISOSpeedRatings") {
                    forceSeq = true;
                    arrayType = KisMetaData::Value::OrderedArray;
                }
                v = exivValueToKMDValue(it->getValue(), forceSeq, arrayType);
            }
            if (it->key() == "Exif.Photo.InteroperabilityTag" || it->key() == "Exif.Photo.0xea1d") { // InteroperabilityTag isn't useful for XMP, 0xea1d isn't a valid Exif tag
                dbgFile << "Ignoring " << it->key().c_str();
            } else {
                store->addEntry(KisMetaData::Entry(exifSchema, it->tagName().c_str(), v));
            }
        } else if (it->groupName() == "Thumbnail") {
            dbgFile << "Ignoring thumbnail tag :" << it->key().c_str();
        } else {
            dbgFile << "Unknown exif tag, cannot load:" << it->key().c_str();
        }
    }
    ioDevice->close();
    return true;
}