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44 lines
978 B
C++
44 lines
978 B
C++
// SPDX-License-Identifier: GPL-2.0-or-later
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// Sample program to print value of an exif key in an image
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#include <exiv2/exiv2.hpp>
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#include <iostream>
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int main(int argc, char* const argv[]) {
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Exiv2::XmpParser::initialize();
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::atexit(Exiv2::XmpParser::terminate);
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#ifdef EXV_ENABLE_BMFF
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Exiv2::enableBMFF();
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#endif
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if (argc != 3) {
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std::cerr << "Usage: " << argv[0] << " file key\n";
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return 1;
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}
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const char* file = argv[1];
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const char* key = argv[2];
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auto image = Exiv2::ImageFactory::open(file);
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image->readMetadata();
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Exiv2::ExifData& exifData = image->exifData();
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if (exifData.empty()) {
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std::cerr << "no metadata found in file " << file << std::endl;
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exit(2);
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}
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try {
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std::cout << exifData[key] << std::endl;
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} catch (Exiv2::Error& e) {
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std::cerr << "Caught Exiv2 exception '" << e << "'" << std::endl;
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exit(3);
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} catch (...) {
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std::cerr << "Caught a cold!" << std::endl;
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exit(4);
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}
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return 0;
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}
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