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// SPDX-License-Identifier: GPL-2.0-or-later
// Sample program to print value of an exif key in an image
#include <exiv2/exiv2.hpp>
#include <iostream>
int main(int argc, char* const argv[]) {
Exiv2::XmpParser::initialize();
::atexit(Exiv2::XmpParser::terminate);
if (argc != 3) {
std::cerr << "Usage: " << argv[0] << " file key\n";
return EXIT_FAILURE;
}
const char* file = argv[1];
const char* key = argv[2];
auto image = Exiv2::ImageFactory::open(file);
image->readMetadata();
Exiv2::ExifData& exifData = image->exifData();
if (exifData.empty()) {
std::cerr << "no metadata found in file " << file << std::endl;
return EXIT_FAILURE;
}
try {
std::cout << exifData[key] << std::endl;
} catch (Exiv2::Error& e) {
std::cerr << "Caught Exiv2 exception '" << e << "'" << std::endl;
return EXIT_FAILURE;
} catch (...) {
std::cerr << "Caught a cold!" << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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