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47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
// ***************************************************************** -*- C++ -*-
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// prevtest.cpp, $Rev$
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// Test access to preview images
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#include <exiv2/image.hpp>
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#include <exiv2/preview.hpp>
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#include <string>
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#include <iostream>
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#include <cassert>
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int main(int argc, char* const argv[])
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try {
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if (argc != 2) {
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std::cout << "Usage: " << argv[0] << " file\n";
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return 1;
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}
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Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open(argv[1]);
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assert(image.get() != 0);
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image->readMetadata();
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Exiv2::PreviewImageLoader loader(*image);
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Exiv2::PreviewPropertiesList list = loader.getPreviewPropertiesList();
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for (Exiv2::PreviewPropertiesList::iterator pos = list.begin(); pos != list.end(); pos++)
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{
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std::cout << "found preview " << pos->id_
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<< ", size: " << pos->size_
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<< ", " << pos->width_ << 'x' << pos->height_
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<< "\n";
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Exiv2::PreviewImage image = loader.getPreviewImage(*pos);
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char buf[50];
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sprintf(buf, "%dx%d",pos->width_, pos->height_);
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image.writeFile(std::string(argv[1]) + "_" + buf);
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}
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return 0;
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}
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catch (Exiv2::AnyError& e) {
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std::cout << "Caught Exiv2 exception '" << e << "'\n";
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return -1;
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}
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