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C++ exifdata::const_iterator类代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中exifdata::const_iterator类的典型用法代码示例。如果您正苦于以下问题：C++ const_iterator类的具体用法？C++ const_iterator怎么用？C++ const_iterator使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。



在下文中一共展示了const_iterator类的14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，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: set_date

int set_date(const ExifData& exif, char date[])
{
	const ExifData::const_iterator end = exif.end();
	ExifData::const_iterator value = exif.findKey(ExifDateTimeCreated);
	
    if(value == end)
		value = exif.findKey(ExifDateTimeDigitized);
       
	if(value == end)
	    return 1;
	    
	const std::string dateTime = value->value().toString();
	
	if(!dateTime.empty())
	{
		//*date = (char*)realloc(*date, (dateTime.length() + 1) * sizeof(char));
		strcpy(date, const_cast<char*>(dateTime.c_str()));  
	
	    // format gets returned as 'YYYY:MM:DD HH:MM:SS' when it
	    // needs to be 'YYYY-MM-DDTHH:MM:SS' so fix separators
	    char* dateStr = date;
	    
	    if(dateTime.length() > 4 && dateStr[4] != '-')
		    dateStr[4] = '-';
		    
	    if(dateTime.length() > 6 && dateStr[7] != '-')
            dateStr[7] = '-';
            
	    if(dateTime.length() > 10 && dateStr[10] != 'T')
            dateStr[10] = 'T';
	}
		
	return 0;
}
开发者ID:MaiTiano，项目名称:fuppes，代码行数:34，代码来源:metadata_exiv2.cpp


示例2: pixelHeight

 int MrwImage::pixelHeight() const
 {
     ExifData::const_iterator imageHeight = exifData_.findKey(Exiv2::ExifKey("Exif.Image.ImageLength"));
     if (imageHeight != exifData_.end() && imageHeight->count() > 0) {
         return imageHeight->toLong();
     }
     return 0;
 }
开发者ID:IAmTheOneTheyCallNeo，项目名称:android_external_Focal，代码行数:8，代码来源:mrwimage.cpp


示例3: pixelWidth

 int MrwImage::pixelWidth() const
 {
     ExifData::const_iterator imageWidth = exifData_.findKey(Exiv2::ExifKey("Exif.Image.ImageWidth"));
     if (imageWidth != exifData_.end() && imageWidth->count() > 0) {
         return imageWidth->toLong();
     }
     return 0;
 }
开发者ID:IAmTheOneTheyCallNeo，项目名称:android_external_Focal，代码行数:8，代码来源:mrwimage.cpp


示例4: 

 int Cr2Image::pixelHeight() const
 {
     ExifData::const_iterator imageHeight = exifData_.findKey(Exiv2::ExifKey("Exif.Photo.PixelYDimension"));
     if (imageHeight != exifData_.end() && imageHeight->count() > 0) {
         return imageHeight->toLong();
     }
     return 0;
 }
开发者ID:，项目名称:，代码行数:8，代码来源:


示例5: main

int main(int argc, char* const argv[])
try {
    
    if (argc != 2) {
        std::cout << "Usage: " << argv[0] << " file\n";
        return 1;
    }
    
    const char* path=argv[1];
        
    Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open(path);
    assert(image.get() != 0);
    image->readMetadata();
        
    Jzon::Object root;

    const char*    FS="FS";
    Jzon::Object      fs  ;
    root.Add      (FS,fs) ;
    fileSystemPush(path,root.Get(FS));
    
	Exiv2::ExifData &exifData = image->exifData();
    for ( ExifData::const_iterator i = exifData.begin(); i != exifData.end() ; ++i ) {
        std::string   key ;
        push(objectForKey(i->key(),key,root),key,i);
    }

	Exiv2::IptcData &iptcData = image->iptcData();
    for (Exiv2::IptcData::const_iterator i = iptcData.begin(); i != iptcData.end(); ++i) {
        std::string key ;
        push(objectForKey(i->key(),key,root),key,i);
    }

	Exiv2::XmpData  &xmpData  = image->xmpData();
    for (Exiv2::XmpData::const_iterator i = xmpData.begin(); i != xmpData.end(); ++i) {
        std::string key ;
        push(objectForKey(i->key(),key,root),key,i);
    }
/*
    This is only for testing long paths    
    {
    	ExifData::const_iterator i = exifData.begin();
    	std::string key;
    	push(objectForKey("This.Is.A.Rather.Long.Path.Key",key,root),key,i);
    }
*/        
    Jzon::Writer writer(root,Jzon::StandardFormat);
    writer.Write();
    std::cout << writer.GetResult() << std::endl;
    return 0;
}
        
//catch (std::exception& e) {
//catch (Exiv2::AnyError& e) {
catch (Exiv2::Error& e) {
    std::cout << "Caught Exiv2 exception '" << e.what() << "'\n";
    return -1;
}
开发者ID:，项目名称:，代码行数:58，代码来源:


示例6: 

 int Rw2Image::pixelHeight() const
 {
     ExifData::const_iterator imageHeight =
         exifData_.findKey(Exiv2::ExifKey("Exif.PanasonicRaw.SensorHeight"));
     if (imageHeight != exifData_.end() && imageHeight->count() > 0) {
         return imageHeight->toLong();
     }
     return 0;
 }
开发者ID:jfiguinha，项目名称:Regards，代码行数:9，代码来源:rw2image.cpp


示例7: set_long_value

int set_long_value(const ExifData& exif, const ExifKey& key, unsigned int& field)
{
	const ExifData::const_iterator end = exif.end();
	const ExifData::const_iterator value = exif.findKey(key);
	
    if(value == end)
        return -1;
        
	field = value->value().toLong();
	return 0;
}
开发者ID:MaiTiano，项目名称:fuppes，代码行数:11，代码来源:metadata_exiv2.cpp


示例8: isoSpeed

    ExifData::const_iterator isoSpeed(const ExifData& ed)
    {
        static const char* keys[] = {
            "Exif.Photo.ISOSpeedRatings",
            "Exif.Image.ISOSpeedRatings",
            "Exif.CanonSi.ISOSpeed",
            "Exif.CanonCs.ISOSpeed",
            "Exif.Nikon1.ISOSpeed",
            "Exif.Nikon2.ISOSpeed",
            "Exif.Nikon3.ISOSpeed",
            "Exif.NikonIi.ISO",
            "Exif.NikonIi.ISO2",
            "Exif.MinoltaCsNew.ISOSetting",
            "Exif.MinoltaCsOld.ISOSetting",
            "Exif.MinoltaCs5D.ISOSpeed",
            "Exif.MinoltaCs7D.ISOSpeed",
            "Exif.Sony1Cs.ISOSetting",
            "Exif.Sony2Cs.ISOSetting",
            "Exif.Sony1Cs2.ISOSetting",
            "Exif.Sony2Cs2.ISOSetting",
            "Exif.Sony1MltCsA100.ISOSetting",
            "Exif.Pentax.ISO",
            "Exif.PentaxDng.ISO",
            "Exif.Olympus.ISOSpeed",
            "Exif.Samsung2.ISO",
            "Exif.Casio.ISO",
            "Exif.Casio2.ISO",
            "Exif.Casio2.ISOSpeed"
        };

        // Find the first ISO value which is not "0"
        const int cnt = EXV_COUNTOF(keys);
        ExifData::const_iterator md = ed.end();
        for (int idx = 0; idx < cnt; ) {
            md = findMetadatum(ed, keys + idx, cnt - idx);
            if (md == ed.end()) break;
            std::ostringstream os;
            md->write(os, &ed);
            bool ok = false;
            long v = parseLong(os.str(), ok);
            if (ok && v != 0) break;
            while (strcmp(keys[idx++], md->key().c_str()) != 0 && idx < cnt) {}
            md = ed.end();
        }

        return md;
    }
开发者ID:FihlaTV，项目名称:Satires，代码行数:47，代码来源:easyaccess.cpp


示例9: exifPrint

void exifPrint(const ExifData& exifData)
{
    ExifData::const_iterator i = exifData.begin();
    for (; i != exifData.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";
    }
}
开发者ID:，项目名称:，代码行数:17，代码来源:


示例10: Error

    void Rw2Image::readMetadata()
    {
#ifdef DEBUG
        std::cerr << "Reading RW2 file " << io_->path() << "\n";
#endif
        if (io_->open() != 0) {
            throw Error(9, io_->path(), strError());
        }
        IoCloser closer(*io_);
        // Ensure that this is the correct image type
        if (!isRw2Type(*io_, false)) {
            if (io_->error() || io_->eof()) throw Error(14);
            throw Error(3, "RW2");
        }
        clearMetadata();
        std::ofstream devnull;
        printStructure(devnull, kpsRecursive, 0);
        ByteOrder bo = Rw2Parser::decode(exifData_,
                                         iptcData_,
                                         xmpData_,
                                         io_->mmap(),
                                         io_->size());
        setByteOrder(bo);

        // A lot more metadata is hidden in the embedded preview image
        // Todo: This should go into the Rw2Parser, but for that it needs the Image
        PreviewManager loader(*this);
        PreviewPropertiesList list = loader.getPreviewProperties();
        // Todo: What if there are more preview images?
        if (list.size() > 1) {
#ifndef SUPPRESS_WARNINGS
            EXV_WARNING << "RW2 image contains more than one preview. None used.\n";
#endif
        }
        if (list.size() != 1) return;
        ExifData exifData;
        PreviewImage preview = loader.getPreviewImage(*list.begin());
        Image::AutoPtr image = ImageFactory::open(preview.pData(), preview.size());
        if (image.get() == 0) {
#ifndef SUPPRESS_WARNINGS
            EXV_WARNING << "Failed to open RW2 preview image.\n";
#endif
            return;
        }
        image->readMetadata();
        ExifData& prevData = image->exifData();
        if (!prevData.empty()) {
            // Filter duplicate tags
            for (ExifData::const_iterator pos = exifData_.begin(); pos != exifData_.end(); ++pos) {
                if (pos->ifdId() == panaRawId) continue;
                ExifData::iterator dup = prevData.findKey(ExifKey(pos->key()));
                if (dup != prevData.end()) {
#ifdef DEBUG
                    std::cerr << "Filtering duplicate tag " << pos->key()
                              << " (values '" << pos->value()
                              << "' and '" << dup->value() << "')\n";
#endif
                    prevData.erase(dup);
                }
            }
        }
        // Remove tags not applicable for raw images
        static const char* filteredTags[] = {
            "Exif.Photo.ComponentsConfiguration",
            "Exif.Photo.CompressedBitsPerPixel",
            "Exif.Panasonic.ColorEffect",
            "Exif.Panasonic.Contrast",
            "Exif.Panasonic.NoiseReduction",
            "Exif.Panasonic.ColorMode",
            "Exif.Panasonic.OpticalZoomMode",
            "Exif.Panasonic.Contrast",
            "Exif.Panasonic.Saturation",
            "Exif.Panasonic.Sharpness",
            "Exif.Panasonic.FilmMode",
            "Exif.Panasonic.SceneMode",
            "Exif.Panasonic.WBRedLevel",
            "Exif.Panasonic.WBGreenLevel",
            "Exif.Panasonic.WBBlueLevel",
            "Exif.Photo.ColorSpace",
            "Exif.Photo.PixelXDimension",
            "Exif.Photo.PixelYDimension",
            "Exif.Photo.SceneType",
            "Exif.Photo.CustomRendered",
            "Exif.Photo.DigitalZoomRatio",
            "Exif.Photo.SceneCaptureType",
            "Exif.Photo.GainControl",
            "Exif.Photo.Contrast",
            "Exif.Photo.Saturation",
            "Exif.Photo.Sharpness",
            "Exif.Image.PrintImageMatching",
            "Exif.Image.YCbCrPositioning"
        };
        for (unsigned int i = 0; i < EXV_COUNTOF(filteredTags); ++i) {
            ExifData::iterator pos = prevData.findKey(ExifKey(filteredTags[i]));
            if (pos != prevData.end()) {
#ifdef DEBUG
                std::cerr << "Exif tag " << pos->key() << " removed\n";
#endif
                prevData.erase(pos);
            }
//.........这里部分代码省略.........
开发者ID:jfiguinha，项目名称:Regards，代码行数:101，代码来源:rw2image.cpp


示例11: QImage

QImage Exiv2Lib::getPreview()
{
    PreviewManager        loader(*mImageFile);
    PreviewPropertiesList list = loader.getPreviewProperties();

    if (list.empty())
    {
        qDebug() << "Image contains no thumbnail";
        return QImage();
    }

    PreviewProperties selected;
    // Take the last image in the list.
    // For Canon raw pictures, the 2nd preview has no white balance applied.
    // see http://lclevy.free.fr/cr2/
    //     section 2.6 IFD #2
    selected = list.back();

    // FIXME: crash hapened here when reading the QImage.
    // not quite sure what caused it

    // load the thumbnail
    PreviewImage         thumbnail = loader.getPreviewImage(selected);

    const unsigned char* tmp  = thumbnail.pData();
    size_t               size = thumbnail.size();

    QImage               thumb;

    thumb.loadFromData(tmp, size);

    // Read the EXIF orientation flag and rotate the image accordingly.
    ExifData&                data = mImageFile->exifData();
    ExifData::const_iterator pos;
    pos = data.findKey(ExifKey("Exif.Image.Orientation"));

    // TODO: should flip/rotate after resize
    if (pos != data.end())
    {
        qDebug() << "rotation" << pos->toLong();
        QTransform rotate;

        switch (pos->toLong())
        {
            case 1:     // no rotation needed
                break;

            case 2:     // flip over y
                thumb = thumb.mirrored(true, false);
                break;

            case 3:     // rotate 180 (or flip x flip y)
                thumb = thumb.mirrored(true, true);
                break;

            case 4:     // flip over x
                thumb = thumb.mirrored(false, true);
                break;

            case 5:     // rotate 90 CW & flip over y
                rotate.rotate(90);
                rotate.rotate(180, Qt::YAxis);
                thumb = thumb.transformed(rotate);
                break;

            case 6:     // rotate 90 CW
                rotate.rotate(90);
                thumb = thumb.transformed(rotate);
                break;

            case 7:     // rotate 90 CCW flip over y
                rotate.rotate(-90);
                rotate.rotate(180, Qt::YAxis);
                thumb = thumb.transformed(rotate);
                break;

            case 8:     // rotate 90 CCW
                rotate.rotate(-90);
                thumb = thumb.transformed(rotate);
                break;
        }
    }
    return thumb;
}
开发者ID:jaapgeurts，项目名称:photostage，代码行数:84，代码来源:exiv2lib.cpp


示例12: if

void Exiv2Lib::setWhiteBalanceCoeffsCanon(ExifData& data, float wb[3])
{
    ExifData::const_iterator pos;

    if (*mExifInfo.model == "Canon EOS 300D DIGITAL" ||
        *mExifInfo.model == "Canon EOS DIGITAL REBEL")
    {
        pos = data.findKey(ExifKey("Exif.Canon.WhiteBalanceTable"));

        if (pos != data.end())
        {
            qDebug() << "Reading EOS 300D tags";
            uint16_t* cdata = new uint16_t[pos->size() / 2];
            pos->copy((unsigned char*)cdata, littleEndian);

            wb[0] = cdata[1];
            wb[1] = (cdata[2] + cdata[3]) / 2;
            wb[2] = cdata[4];
            float mx = max3(wb[0], wb[1], wb[2]);

            wb[0] /= mx;
            wb[1] /= mx;
            wb[2] /= mx;

            delete [] cdata;
            return;
        }
    }

    pos = data.findKey(ExifKey("Exif.Canon.ColorData"));

    if (pos != data.end())
    {
        uint8_t*                cdata = new uint8_t[pos->size()];

        struct Canon_ColorData* colorData;
        pos->copy(cdata, littleEndian);
        colorData = (struct Canon_ColorData*)cdata;

        if (*mExifInfo.model == "Canon EOS 350D DIGITAL")     // || EOS 20D
        {
            // optimize with bitshifts later
            //                                    wb[0] = colorData->V1.WhiteBalanceTable[WB_AsShot].RGGB[2];
            //                                    wb[1] = ((colorData->V1.WhiteBalanceTable[WB_AsShot].RGGB[1]+colorData->V1.WhiteBalanceTable[WB_AsShot].RGGB[3])/2);
            //                                    wb[2] = colorData->V1.WhiteBalanceTable[WB_AsShot].RGGB[0];
            wb[0] = colorData->V1.WhiteBalanceTable[WB_AsShot].RGGB[0];
            wb[1] =
                ((colorData->V1.WhiteBalanceTable[WB_AsShot].RGGB[1] +
                colorData->V1.WhiteBalanceTable[WB_AsShot].RGGB[2]) / 2);
            wb[2] = colorData->V1.WhiteBalanceTable[WB_AsShot].RGGB[3];

            qDebug() << "WB EOS 350D DIGITAL RGGB" << wb[0] << "," << wb[1] <<
                "," << wb[2];
        }
        else if (*mExifInfo.model == "Canon EOS 1D Mark II")     // || 1Ds Mark II
        {
            qDebug() << "Whitebalance info unavailable";
        }
        else if (*mExifInfo.model == "Canon G10")
        {
            qDebug() << "Whitebalance info unavailable";
        }
        else if (*mExifInfo.model == "Canon PowerShot S30")
        {
            wb[0] = colorData->V5.WhiteBalanceTable[WB_AsShot].GRBG[1];
            wb[1] =
                (colorData->V5.WhiteBalanceTable[WB_AsShot].GRBG[0] +
                colorData->V5.WhiteBalanceTable[WB_AsShot].GRBG[3]) / 2;
            wb[2] = colorData->V5.WhiteBalanceTable[WB_AsShot].GRBG[2];
        }
        else if (*mExifInfo.model == "Canon PowerShot S110")
        {
            wb[0] =  colorData->V3.WhiteBalanceTable[WB_AsShot].RGGB[0];
            wb[1] = (colorData->V3.WhiteBalanceTable[WB_AsShot].RGGB[1] +
                colorData->V3.WhiteBalanceTable[WB_AsShot].RGGB[2]) / 2;
            wb[2] =  colorData->V3.WhiteBalanceTable[WB_AsShot].RGGB[3];
        }
        else     // attempt to read at the default position at V4
        {
            qDebug() <<
                "Model unknown, Parsing whitebalance using canon default format";
            qDebug() << "Color data version: " << colorData->V7.version;
            // optimize with bitshifs later
            wb[0] = colorData->V7.WhiteBalanceTable[WB_AsShot].RGGB[0];
            wb[1] =
                (colorData->V7.WhiteBalanceTable[WB_AsShot].RGGB[1] +
                colorData->V7.WhiteBalanceTable[WB_AsShot].RGGB[2]) / 2;
            wb[2] = colorData->V7.WhiteBalanceTable[WB_AsShot].RGGB[3];
        }

        float mx = max3(wb[0], wb[1], wb[2]);

        wb[0] /= mx;
        wb[1] /= mx;
        wb[2] /= mx;

        delete [] cdata;
    }
    else
    {
//.........这里部分代码省略.........
开发者ID:jaapgeurts，项目名称:photostage，代码行数:101，代码来源:exiv2lib.cpp


示例13: val

void Exiv2Lib::setWhiteBalanceCoeffsNikon(ExifData& data, float wb[3])
{
    ExifData::const_iterator pos;

    /*
     * This seems to be unnecessary as the multipliers are also
     * available as rational numbers in the WB_RBLevels tag
     */
    /*
       pos = data.findKey(ExifKey("Exif.Nikon3.Version"));

       int makerNoteVersion = -1;

       if (pos != data.end())
       {
           char*   buf =  new char[pos->size()];
           pos->copy((unsigned char*)buf, littleEndian);
           QString val(buf);
           qDebug() << val;
           delete [] buf;

           makerNoteVersion = val.toInt();
       }
       qDebug() << "Nikon makenote version:" << makerNoteVersion;

       if (makerNoteVersion >= 200)
       {
        qDebug() << "Decrypt Nikon Color Balance";
       }

     */
    pos = data.findKey(ExifKey("Exif.Nikon3.WB_RBLevels"));

    if (pos != data.end())
    {
        if (*mExifInfo.model == "NIKON D300")
        {
            wb[0] = 1.0f;
            wb[1] = 1.0f;
            wb[2] = 1.0f;
            //            wb[0] = colorData->V3.WhiteBalanceTable[WB_AsShot].RGGB[0];
            //            wb[1] =
            //                ((colorData->V1.WhiteBalanceTable[WB_AsShot].RGGB[1] +
            //                colorData->V1.WhiteBalanceTable[WB_AsShot].RGGB[2]) / 2);
            //            wb[2] = colorData->V1.WhiteBalanceTable[WB_AsShot].RGGB[3];
            qDebug() << "White balance for model Nikon D300";

            if (pos != data.end())
            {
                wb[0] = pos->toFloat(0);
                wb[1] = 1.0f;
                wb[2] = pos->toFloat(1);
                qDebug() << "Nikon: RGB" << wb[0] << "," << wb[1] << "," <<
                    wb[2];
            }
        }
        float mx = max3(wb[0], wb[1], wb[2]);

        wb[0] /= mx;
        wb[1] /= mx;
        wb[2] /= mx;
    }
    else
    {
        qDebug () << "Nikon: Color balance data not available";
        wb[0] = 1.0f;
        wb[1] = 1.0f;
        wb[2] = 1.0f;
    }
}
开发者ID:jaapgeurts，项目名称:photostage，代码行数:70，代码来源:exiv2lib.cpp


示例14: if

gboolean
exiv2_load_meta_interface(const gchar *service, RAWFILE *rawfile, guint offset, RSMetadata *meta)
{
	try {
		Image::AutoPtr img = ImageFactory::open((byte*)raw_get_map(rawfile), raw_get_filesize(rawfile));
		img->readMetadata();
		ExifData &exifData = img->exifData();

#if EXIV2_TEST_VERSION(0,17,0)
		/* We perfer XMP data, so copy it to EXIF */
		XmpData &xmpData = img->xmpData();
		if (!xmpData.empty())
			copyXmpToExif(xmpData, exifData);
#endif

		/* Parse Exif Data */
		if (!exifData.empty())
		{
			ExifData::const_iterator i;
			i = exifData.findKey(ExifKey("Exif.Image.Make"));
			if (i != exifData.end())
				set_metadata_maker(i->toString(), meta);
			
			i = exifData.findKey(ExifKey("Exif.Image.Model"));
			if (i != exifData.end())
				meta->model_ascii = g_strdup(i->toString().c_str());

#if EXIV2_TEST_VERSION(0,19,0)
			i = orientation(exifData);
			if (i != exifData.end())
			{
				std::auto_ptr<Exiv2::Value> val = i->getValue();
				if (val->count())
				{
					switch (val->toLong())
					{
							case 6: meta->orientation = 90;
								break;
							case 8: meta->orientation = 270;
								break;
					}
				}
			}
#endif

			i = exifData.findKey(ExifKey("Exif.Image.DateTimeOriginal"));
			if (i == exifData.end())
				i = exifData.findKey(ExifKey("Exif.Image.DateTime"));
			if (i != exifData.end())
			{
				meta->time_ascii = g_strdup(i->toString().c_str());
				meta->timestamp = rs_exiftime_to_unixtime(meta->time_ascii);
			}

			i = exifData.findKey(ExifKey("Exif.Image.ExposureTime"));
			if (i == exifData.end())
				i = exifData.findKey(ExifKey("Exif.Photo.ExposureTime"));
			if (i != exifData.end())
				meta->shutterspeed = 1.0 / i->getValue()->toFloat();
			else
			{
				i = exifData.findKey(ExifKey("Exif.Image.ShutterSpeedValue"));
				if (i == exifData.end())
					i = exifData.findKey(ExifKey("Exif.Photo.ShutterSpeedValue"));
				if (i != exifData.end())
					meta->shutterspeed = 1.0 / i->toFloat();
			}

			i = exifData.findKey(ExifKey("Exif.Image.FNumber"));
			if (i == exifData.end())
				i = exifData.findKey(ExifKey("Exif.Photo.FNumber"));
			if (i == exifData.end())
				i = exifData.findKey(ExifKey("Exif.Image.ApertureValue"));
			if (i == exifData.end())
				i = exifData.findKey(ExifKey("Exif.Photo.ApertureValue"));
			if (i != exifData.end())
				meta->aperture = i->toFloat();

			i = exifData.findKey(ExifKey("Exif.Image.FocalLength"));
			if (i == exifData.end())
				i = exifData.findKey(ExifKey("Exif.Photo.FocalLength"));
			if (i != exifData.end())
				meta->focallength = i->toFloat()-0.01;

#if EXIV2_TEST_VERSION(0,19,0)
			i = isoSpeed(exifData);
			if (i != exifData.end())
				meta->iso = i->toLong();

			/* Text based Lens Identifier */
			i = lensName(exifData);
			if (i != exifData.end())
			{
				TypeId type = i->typeId();
				if (type == unsignedShort || type == unsignedLong || type == signedShort || type == signedLong || type == unsignedByte || type == signedByte)
					meta->lens_id = i->toLong();
				else if (type == asciiString || type == string)
					meta->fixed_lens_identifier = g_strdup(i->toString().c_str());
			}
#endif
//.........这里部分代码省略.........
开发者ID:bgromov，项目名称:rawstudio，代码行数:101，代码来源:exiv2-metadata.cpp



注：本文中的exifdata::const_iterator类示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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