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;
}
}
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
/* Canon*/
i = exifData.findKey(ExifKey("Exif.CanonCs.Lens"));
if (i != exifData.end()
&& i->value().count() >= 3
&& i->value().typeId() == unsignedShort)
{
float fu = i->value().toFloat(2);
if (fu != 0.0)
{
meta->lens_min_focal = i->toFloat(0) / fu;
meta->lens_max_focal = i->toFloat(1) /fu;
}
}
i = exifData.findKey(ExifKey("Exif.CanonCs.MinAperture"));
if (i != exifData.end())
meta->lens_min_aperture = (gfloat) exp(CanonEv(i->toFloat())*log(2)/2);
i = exifData.findKey(ExifKey("Exif.CanonCs.MaxAperture"));
if (i != exifData.end())
meta->lens_max_aperture = (gfloat) exp(CanonEv(i->toFloat())*log(2)/2);
/* Olympus */
i = exifData.findKey(ExifKey("Exif.OlympusEq.MinFocalLength"));
if (i != exifData.end())
meta->lens_min_focal = i->toFloat();
i = exifData.findKey(ExifKey("Exif.OlympusEq.MaxFocalLength"));
if (i != exifData.end())
meta->lens_max_focal = i->toFloat();
/* Nikon */
i = exifData.findKey(ExifKey("Exif.NikonLd1.MinFocalLength"));
if (i == exifData.end())
i = exifData.findKey(ExifKey("Exif.NikonLd2.MinFocalLength"));
if (i == exifData.end())
i = exifData.findKey(ExifKey("Exif.NikonLd3.MinFocalLength"));
if (i != exifData.end())
meta->lens_min_focal = 5.0 * pow(2.0, i->toLong()/24.0);
i = exifData.findKey(ExifKey("Exif.NikonLd1.MaxFocalLength"));
if (i == exifData.end())
i = exifData.findKey(ExifKey("Exif.NikonLd2.MaxFocalLength"));
if (i == exifData.end())
i = exifData.findKey(ExifKey("Exif.NikonLd3.MaxFocalLength"));
if (i != exifData.end())
meta->lens_max_focal = 5.0 * pow(2.0, i->toLong()/24.0);
i = exifData.findKey(ExifKey("Exif.NikonLd1.MaxApertureAtMinFocal"));
if (i == exifData.end())
i = exifData.findKey(ExifKey("Exif.NikonLd2.MaxApertureAtMinFocal"));
if (i == exifData.end())
i = exifData.findKey(ExifKey("Exif.NikonLd3.MaxApertureAtMinFocal"));
if (i != exifData.end())
meta->lens_min_aperture = i->toLong()/12.0;
i = exifData.findKey(ExifKey("Exif.NikonLd1.MaxApertureAtMaxFocal"));
if (i == exifData.end())
i = exifData.findKey(ExifKey("Exif.NikonLd2.MaxApertureAtMaxFocal"));
if (i == exifData.end())
i = exifData.findKey(ExifKey("Exif.NikonLd3.MaxApertureAtMaxFocal"));
if (i != exifData.end())
meta->lens_max_aperture = i->toLong()/12.0;
/* Fuji */
i = exifData.findKey(ExifKey("Exif.Fujifilm.MinFocalLength"));
if (i != exifData.end())
meta->lens_min_focal = i->toFloat();
i = exifData.findKey(ExifKey("Exif.Fujifilm.MaxFocalLength"));
if (i != exifData.end())
meta->lens_max_focal = i->toFloat();
return TRUE;
}
} catch (Exiv2::Error& e) {
g_debug("Exiv2 Metadata Loader:'%s'", e.what());
}
return FALSE;
}