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// ***************************************************************** -*- C++ -*-
/*
Abstract : Tests for dataArea related methods
File : dataarea-test.cpp
Version : $Rev$
Author(s): Andreas Huggel (ahu) <ahuggel@gmx.net>
History : 12-Nov-04, ahu: created
*/
// *****************************************************************************
// included header files
#include <exiv2/image.hpp>
#include <exiv2/jpgimage.hpp>
#include <exiv2/exif.hpp>
#include <iostream>
#include <iomanip>
#include <string>
#include <cassert>
void write(const std::string& file, Exiv2::ExifData& ed);
void print(const std::string& file);
int read(const std::string& path);
using namespace Exiv2;
// *****************************************************************************
// Main
int main(int /*argc*/, char* const /*argv*/[])
{
try {
byte da1[]
= { 0xaa,0xbb,0xaa,0xbb,0xaa,0xbb,0xaa,0xbb,
0xaa,0xbb,0xaa,0xbb,0xaa,0xbb,0xaa,0xbb,
0xaa,0xbb,0xaa,0xbb,0xaa,0xbb,0xaa,0xbb,
0xaa,0xbb,0xaa,0xbb,0xaa,0xbb,0xaa,0xbb
};
long len1 = 32;
byte da2[]
= { 0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,
0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc
};
long len2 = 16;
Value::AutoPtr v1 = Value::create(unsignedLong);
v1->setDataArea(da1, len1);
v1->read("0");
Value::AutoPtr v2 = Value::create(undefined);
v2->read("238 238 238 238 238 238 238 238");
Value::AutoPtr v3 = Value::create(unsignedShort);
v3->setDataArea(da2, len2);
v3->read("0 16");
ExifData ed;
ed.add(ExifKey("Exif.Image.Copyright"), v1.get());
ed.add(ExifKey("Exif.Image.Software"), v2.get());
ed.add(ExifKey("Exif.Image.Artist"), v3.get());
std::string file("dataarea.exv");
std::cout << "Writing file " << file << "\n";
write(file, ed);
std::cout << "\nReading IFD from file\n";
read(file);
std::cout << "\nReading metadata from file\n";
print(file);
return 0;
}
catch (Exiv2::AnyError& e) {
std::cout << "Caught Exiv2 exception '" << e << "'\n";
return -1;
}
}
void write(const std::string& file, Exiv2::ExifData& ed)
{
Image::AutoPtr image = ImageFactory::create(Exiv2::ImageType::exv, file);
assert(image.get() != 0);
image->setExifData(ed);
image->writeMetadata();
}
void print(const std::string& file)
{
Image::AutoPtr image = ImageFactory::open(file);
assert(image.get() != 0);
image->readMetadata();
Exiv2::ExifData &ed = image->exifData();
Exiv2::ExifData::const_iterator end = ed.end();
for (Exiv2::ExifData::const_iterator i = ed.begin(); i != end; ++i) {
std::cout << std::setw(35) << std::setfill(' ') << std::left
<< i->key() << " "
<< "0x" << std::setw(4) << std::setfill('0') << std::right
<< std::hex << i->tag() << " "
<< std::setw(12) << std::setfill(' ') << std::left
<< i->ifdName() << " "
<< std::setw(9) << std::setfill(' ') << std::left
<< i->typeName() << " "
<< std::dec << std::setw(3)
<< std::setfill(' ') << std::right
<< i->count() << " "
<< std::dec << i->value()
<< "\n";
}
}
int read(const std::string& path)
{
Image::AutoPtr image = ImageFactory::open(path);
assert(image.get() != 0);
image->readMetadata();
if (!image->exifData().empty()) {
DataBuf exifData = image->exifData().copy();
long size = exifData.size_;
// Read the TIFF header
TiffHeader tiffHeader;
int rc = tiffHeader.read(exifData.pData_);
if (rc) return rc;
// Read IFD0
Ifd ifd0(ifd0Id);
rc = ifd0.read(exifData.pData_,
size,
tiffHeader.offset(),
tiffHeader.byteOrder());
if (rc) return rc;
ifd0.print(std::cout);
Ifd::const_iterator i = ifd0.findTag(0x8298);
assert(i != ifd0.end());
Value::AutoPtr v = Value::create(TypeId(i->type()));
v->read(i->data(), i->count() * i->typeSize(), tiffHeader.byteOrder());
v->setDataArea(exifData.pData_ + v->toLong(), 32);
std::cout << "Value of tag 0x8298: " << std::hex;
v->write(std::cout);
std::cout << std::endl;
DataBuf buf = v->dataArea();
for (int i = 0; i< buf.size_; ++i) {
std::cout << std::hex << (int)buf.pData_[i] << " ";
}
std::cout << std::endl;
// --------
i = ifd0.findTag(0x013b);
assert(i != ifd0.end());
v = Value::create(TypeId(i->type()));
v->read(i->data(), i->count() * i->typeSize(), tiffHeader.byteOrder());
v->setDataArea(exifData.pData_ + v->toLong(), 16);
std::cout << "Value of tag 0x013b: ";
v->write(std::cout);
std::cout << std::endl;
buf = v->dataArea();
for (int i = 0; i< buf.size_; ++i) {
std::cout << std::hex << (int)buf.pData_[i] << " ";
}
std::cout << std::endl;
}
return 0;
}
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