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improved support for metadata editing

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(cherry picked from commit 85da0b51ecf7ece768c0267aead71dd94404d4dc)
This commit is contained in:
Alberto Griggio
2020-04-10 05:54:40 -07:00
committed by Lawrence Lee
parent 8a5aa6c119
commit b92e77fb96
15 changed files with 615 additions and 183 deletions
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33
rtengine/imagedata.cc
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@@ -699,3 +699,36 @@ double FramesMetaData::apertureFromString(std::string s)
return std::atof(s.c_str());
}
namespace {
template<class T>
void set_exif(Exiv2::ExifData &exif, const std::string &key, T val)
{
try {
exif[key] = val;
} catch (std::exception &exc) {}
}
} // namespace
void FramesData::fillBasicTags(Exiv2::ExifData &exif) const
{
if (!hasExif()) {
return;
}
set_exif(exif, "Exif.Photo.ISOSpeedRatings", getISOSpeed());
set_exif(exif, "Exif.Photo.FNumber", Exiv2::DoubleValue(getFNumber()));
//set_exif(exif, "Exif.Photo.ExposureTime", Exiv2::DoubleValue(getShutterSpeed()));
set_exif(exif, "Exif.Photo.ExposureTime", shutterToString(getShutterSpeed()));
set_exif(exif, "Exif.Photo.FocalLength", Exiv2::DoubleValue(getFocalLen()));
set_exif(exif, "Exif.Photo.ExposureBiasValue", Exiv2::DoubleValue(getExpComp()));
set_exif(exif, "Exif.Image.Make", getMake());
set_exif(exif, "Exif.Image.Model", getModel());
set_exif(exif, "Exif.Photo.LensModel", getLens());
char buf[256];
auto t = getDateTime();
strftime(buf, 256, "%Y:%m:%d %H:%M:%S", &t);
set_exif(exif, "Exif.Photo.DateTimeOriginal", buf);
}