/*
* libopenraw - makernotedir.cpp
*
* Copyright (C) Hubert Figuiere
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#include <fcntl.h>
#include <string.h>
#include "makernotedir.hpp"
#include "io/stream.hpp"
#include "ifdfilecontainer.hpp"
#include "trace.hpp"
namespace OpenRaw {
namespace Internals {
/*
* For Makernote detection, see:
* http://owl.phy.queensu.ca/~phil/exiftool/makernote_types.html
* http://www.exiv2.org/makernote.html
*/
MakerNoteDir::Ref
MakerNoteDir::createMakerNote(off_t offset,
IfdFileContainer & container)
{
LOGDBG1("createMakerNote()\n");
char data[18];
auto file = container.file();
file->seek(offset, SEEK_SET);
file->read(&data, 18);
if (memcmp("Nikon\0", data, 6) == 0) {
if (data[6] == 1) {
return std::make_shared<MakerNoteDir>(
offset + 8, container, offset + 8, "Nikon2");
}
else if (data[6] == 2) {
// this one has an endian / TIFF header after the magic
return std::make_shared<MakerNoteDir>(
offset + 18, container, offset + 10, "Nikon");
}
else {
return std::make_shared<MakerNoteDir>(
offset, container, offset, "");
}
}
if (memcmp("OLYMPUS\0", data, 8) == 0) {
return std::make_shared<MakerNoteDir>(
offset + 12, container, offset, "Olympus2");
}
if (memcmp("OLYMP\0", data, 6) == 0) {
return std::make_shared<MakerNoteDir>(
offset + 8, container, offset + 8, "Olympus");
}
if (memcmp("MLT0", data + 10, 4) == 0) {
return std::make_shared<MakerNoteDir>(
offset, container, offset, "Minolta");
}
return std::make_shared<MakerNoteDir>(offset, container, offset, "");
}
MakerNoteDir::MakerNoteDir(off_t _offset,
IfdFileContainer & _container,
off_t mnote_offset,
const std::string & id)
: MakerNoteDir("", 0, _offset, _container, mnote_offset, id)
{
}
MakerNoteDir::MakerNoteDir(const char* magic, size_t hlen,
off_t _offset,
IfdFileContainer & _container,
off_t mnote_offset,
const std::string & id)
: IfdDir(_offset, _container)
, m_magic(magic ? magic : "")
, m_hlen(hlen)
, m_mnote_offset(mnote_offset)
, m_id(id)
{
}
MakerNoteDir::~MakerNoteDir()
{
}
}
}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0))
indent-tabs-mode:nil
fill-column:80
End:
*/