metadata.h

/*
 * libopenraw - metadata.h
 *
 * Copyright (C) 2007-2020 Hubert Figuière
 *
 * 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/>.
 */
 
 
#pragma once
 
#include <stdint.h>
#include <stdbool.h>
 
#define INCLUDE_EXIF_
#include <libopenraw/exif.h>
#undef INCLUDE_EXIF_
 
#include <libopenraw/types.h>
#include <libopenraw/consts.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef struct _MetadataIterator* ORMetadataIteratorRef; 
typedef struct _MetaValue* ORMetaValueRef; 
typedef const struct _MetaValue* ORConstMetaValueRef; 
enum {
    META_NS_EXIF = (1 << 16), 
    META_NS_TIFF = (2 << 16)  
};
 
#define META_NS_MASKOUT(x) (x & 0xffff)
#define META_INDEX_MASKOUT(x) (x & (0xffff<<16))
 
const char* or_metavalue_get_string(ORConstMetaValueRef value, uint32_t idx);
 
const char* or_metavalue_get_as_string(ORConstMetaValueRef value, bool full);
 
uint32_t or_metavalue_get_count(ORMetaValueRef value);
 
void or_metavalue_release(ORMetaValueRef value);
 
int or_metadata_iterator_next(ORMetadataIteratorRef iterator);
 
int
or_metadata_iterator_get_entry(ORMetadataIteratorRef iterator,
                               ORIfdDirRef* ifd, uint16_t* id,
                               ExifTagType* type, ORMetaValueRef* value);
 
void or_metadata_iterator_free(ORMetadataIteratorRef iterator);
 
#ifdef __cplusplus
}
#endif