rafmetacontainer.hpp

/* -*- Mode: C++ -*- */
/*
 * libopenraw - rafmetacontainer.h
 *
 * Copyright (C) 2011-2016 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/>.
 */
 
#ifndef OR_INTERNALS_RAFMETACONTAINER_H_
#define OR_INTERNALS_RAFMETACONTAINER_H_
 
#include <stdint.h>
 
#include <memory>
#include <map>
 
#include "metavalue.hpp"
#include "io/stream.hpp"
#include "rawcontainer.hpp"
 
namespace OpenRaw {
 
namespace Internals {
 
enum {
    RAF_TAG_INVALID = 0,
    RAF_TAG_SENSOR_DIMENSION = 0x100, // the RAW dimensions
    RAF_TAG_IMG_TOP_LEFT = 0x110,
    RAF_TAG_IMG_HEIGHT_WIDTH = 0x111,
    RAF_TAG_OUTPUT_HEIGHT_WIDTH =
        0x121,                // this is the one dcraw use for the active area
    RAF_TAG_RAW_INFO = 0x130, // some info about the RAW.
    _RAF_TAG_LAST
};
 
class RafMetaValue {
public:
    typedef std::shared_ptr<RafMetaValue> Ref;
    RafMetaValue(uint16_t tag, uint16_t size, const MetaValue &v);
    ~RafMetaValue();
 
    const MetaValue &get() const { return m_value; }
    uint16_t tag() const { return m_tag; }
    uint16_t size() const { return m_size; }
 
private:
    uint16_t m_tag;
    uint16_t m_size;
    MetaValue m_value;
};
 
class RafMetaContainer : public RawContainer {
public:
    RafMetaContainer(const IO::Stream::Ptr &_file);
 
    uint32_t count();
    RafMetaValue::Ref getValue(uint16_t tag);
 
private:
    void _read();
    uint32_t m_count;
    std::map<uint16_t, RafMetaValue::Ref> m_tags;
};
 
}
}
 
#endif