xmpprint.cpp

Read an XMP from a file, parse it and print all (known) properties

// ***************************************************************** -*- C++ -*-
// xmpprint.cpp
// Read an XMP from a video or graphic file, parse it and print
// all (known) properties.
// ========================================================================
// Linux standalone compilation :
// g++ -o xmprint xmprint.cpp `pkg-config --cflags --libs exiv2`
// ========================================================================
#include <exiv2/exiv2.hpp>
#include <string>
#include <iostream>
#include <iomanip>
#include <cassert>
int main(int argc, char** argv)
{
try
{
if (argc != 2)
{
std::cout << "Usage: " << argv[0] << " file\n";
return 1;
}
assert (image.get() != 0);
image->readMetadata();
Exiv2::XmpData &xmpData = image->xmpData();
if (xmpData.empty()) {
std::string error(argv[1]);
error += ": No XMP data found in the file";
throw Exiv2::Error(Exiv2::kerErrorMessage, error);
}
if (xmpData.empty())
{
std::string error(argv[1]);
error += ": No XMP properties found in the XMP packet";
throw Exiv2::Error(Exiv2::kerErrorMessage, error);
}
md != xmpData.end(); ++md)
{
std::cout << std::setfill(' ') << std::left
<< std::setw(44)
<< md->key() << " "
<< std::setw(9) << std::setfill(' ') << std::left
<< md->typeName() << " "
<< std::dec << std::setw(3)
<< std::setfill(' ') << std::right
<< md->count() << " "
<< std::dec << md->value()
<< std::endl;
}
return 0;
}
catch (Exiv2::AnyError& e)
{
std::cout << "Caught Exiv2 exception '" << e << "'\n";
return -1;
}
}