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";
}
}
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);
}
}
// Add the remaining tags
for (ExifData::const_iterator pos = prevData.begin(); pos != prevData.end(); ++pos) {
exifData_.add(*pos);
}
} // Rw2Image::readMetadata
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;
}
