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67 lines
1.9 KiB
C++
67 lines
1.9 KiB
C++
// ***************************************************************** -*- C++ -*-
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/*
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* Copyright (C) 2004-2021 Exiv2 authors
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* This program is part of the Exiv2 distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, 5th Floor, Boston, MA 02110-1301 USA.
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*/
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// exifvalue.cpp
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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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#include <iomanip>
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#include <cassert>
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#include <string>
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int main(int argc, char* const argv[])
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{
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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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Exiv2::Image::UniquePtr image = Exiv2::ImageFactory::open(file);
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assert(image.get() != 0);
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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::AnyError& 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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