Exiv2

        clearMetadata();

        // read all metadata into memory

        // we should put this into clearMetadata(), however it breaks the test suite!

        try {

            std::ofstream devnull;

            printStructure(devnull,kpsRecursive,0);

            DataBuf file(io().size());

            io_->read(file.pData_,file.size_);

        }

        CrwParser::decode(this, io_->mmap(), io_->size());