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75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
// ***************************************************************** -*- C++ -*-
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// exifprint.cpp
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// Sample program to print the Exif metadata of an image
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#include <exiv2/exiv2.hpp>
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#include <iostream>
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#include <iomanip>
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#include <cassert>
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#ifdef EXV_UNICODE_PATH
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#define _tchar wchar_t
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#define _tstrcmp wcscmp
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#define _t(s) L##s
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#define _tcout wcout
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#define _tmain wmain
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#else
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#define _tchar char
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#define _tstrcmp strcmp
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#define _t(s) s
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#define _tcout cout
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#define _tmain main
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#endif
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int _tmain(int argc, _tchar* const argv[])
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try {
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const _tchar* prog = argv[0];
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const _tchar* file = argv[1];
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if (argc != 2) {
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std::_tcout << _t("Usage: ") << prog << _t(" [ file | --version ]") << std::endl;
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return 1;
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}
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if ( _tstrcmp(file,_t("--version")) == 0 ) {
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exv_grep_keys_t keys;
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Exiv2::dumpLibraryInfo(std::cout,keys);
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return 0;
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}
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Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open(file);
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assert(image.get() != 0);
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image->readMetadata();
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Exiv2::ExifData &exifData = image->exifData();
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if (exifData.empty()) {
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std::string error("No Exif data found in file");
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throw Exiv2::Error(1, error);
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}
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Exiv2::ExifData::const_iterator end = exifData.end();
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for (Exiv2::ExifData::const_iterator i = exifData.begin(); i != end; ++i) {
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const char* tn = i->typeName();
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std::cout << std::setw(44) << std::setfill(' ') << std::left
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<< i->key() << " "
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<< "0x" << std::setw(4) << std::setfill('0') << std::right
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<< std::hex << i->tag() << " "
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<< std::setw(9) << std::setfill(' ') << std::left
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<< (tn ? tn : "Unknown") << " "
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<< std::dec << std::setw(3)
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<< std::setfill(' ') << std::right
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<< i->count() << " "
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<< std::dec << i->value()
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<< "\n";
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}
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return 0;
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}
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//catch (std::exception& e) {
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//catch (Exiv2::AnyError& e) {
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catch (Exiv2::Error& e) {
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std::cout << "Caught Exiv2 exception '" << e.what() << "'\n";
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return -1;
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}
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