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41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
// SPDX-License-Identifier: GPL-2.0-or-later
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// Test access to preview images
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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[]) try {
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Exiv2::XmpParser::initialize();
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::atexit(Exiv2::XmpParser::terminate);
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if (argc != 2) {
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std::cout << "Usage: " << argv[0] << " file\n";
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return EXIT_FAILURE;
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}
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std::string filename(argv[1]);
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auto image = Exiv2::ImageFactory::open(filename);
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image->readMetadata();
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Exiv2::PreviewManager loader(*image);
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for (const auto& pos : loader.getPreviewProperties()) {
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std::cout << pos.mimeType_ << " preview, type " << pos.id_ << ", " << pos.size_ << " bytes, " << pos.width_ << 'x'
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<< pos.height_ << " pixels"
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<< "\n";
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Exiv2::PreviewImage preview = loader.getPreviewImage(pos);
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auto s = preview.writeFile(filename + "_" + std::to_string(pos.width_) + "x" + std::to_string(pos.height_));
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if (s == 0)
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return EXIT_FAILURE;
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}
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// Cleanup
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Exiv2::XmpParser::terminate();
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return EXIT_SUCCESS;
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} catch (Exiv2::Error& e) {
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std::cout << "Caught Exiv2 exception '" << e << "'\n";
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return EXIT_FAILURE;
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}
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