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// ***************************************************************** -*- C++ -*-
// prevtest.cpp, $Rev: 1629 $
// Test access to preview images
#include <exiv2/image.hpp>
#include <exiv2/preview.hpp>
#include <string>
#include <iostream>
#include <cassert>
int main(int argc, char* const argv[])
try {
if (argc != 2) {
std::cout << "Usage: " << argv[0] << " file\n";
return 1;
}
std::string filename(argv[1]);
Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open(filename);
assert(image.get() != 0);
image->readMetadata();
Exiv2::PreviewManager loader(*image);
Exiv2::PreviewPropertiesList list = loader.getPreviewProperties();
for (Exiv2::PreviewPropertiesList::iterator pos = list.begin(); pos != list.end(); pos++) {
std::cout << pos->mimeType_
<< " preview, type " << pos->id_ << ", "
<< pos->size_ << " bytes, "
<< pos->width_ << 'x' << pos->height_ << " pixels"
<< "\n";
Exiv2::PreviewImage preview = loader.getPreviewImage(*pos);
preview.writeFile(filename + "_"
+ Exiv2::toString(pos->width_) + "x"
+ Exiv2::toString(pos->height_));
}
// Cleanup
Exiv2::XmpParser::terminate();
return 0;
}
catch (Exiv2::AnyError& e) {
std::cout << "Caught Exiv2 exception '" << e << "'\n";
return -1;
}
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