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// SPDX-License-Identifier: GPL-2.0-or-later
// Sample program to parse jpeg files and obtain its specific metadata
#include <exiv2/exiv2.hpp>
#include <exiv2/image_types.hpp>
#include <iostream>
int main(int argc, char* const argv[]) {
try {
if (argc != 2) {
std::cout << "Usage: " << argv[0] << " file\n";
return EXIT_FAILURE;
}
auto image = Exiv2::ImageFactory::open(argv[1]);
if (image->imageType() == Exiv2::ImageType::jpeg) {
auto jpegImage = dynamic_cast<Exiv2::JpegImage*>(image.get());
jpegImage->readMetadata();
std::cout << "Number of color components: " << jpegImage->numColorComponents() << "\n";
std::cout << "Encoding process: " << jpegImage->encodingProcess() << "\n";
}
return EXIT_SUCCESS;
} catch (Exiv2::Error& e) {
std::cout << "Caught Exiv2 exception '" << e << "'\n";
return EXIT_FAILURE;
}
}
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