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c++exifgtkmmutfexiv2

Exiv2: How to read photo with UTF8 filepath?

I am using GTKmm and exiv2 to read EXIF metadata form photos. However Exiv2 functions accept only std::string file paths... When I try it on not ASCII filepath it crushes the program.

Is there any way to read that data? It would be great if Exiv2 accepted Glib::ustrings...

I'm interested in solutions for Windows and Linux.

Solution

  • Ok, I have a solution!

    You just need to use function Glibmm::locale_from_utf8 to convert UTF8 string to std(ascii) string. Here is an example:

    void get_exif_data(const Glib::ustring &image_src)
{
        Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open(Glib::locale_from_utf8(image_src));
        image->readMetadata(); 
        Exiv2::ExifData &exifData = image->exifData();
        Exiv2::ExifData::const_iterator it = exifData.begin();
        for(it;it!=exifData.end();it++) cout << it->key() + ": " + it->getValue() << endl;

}