EXIF library (libexif) API 0.6.24
exif-content.h
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1
4/*
5 * Copyright (c) 2001 Lutz Mueller <lutz@users.sourceforge.net>
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 * Boston, MA 02110-1301 USA.
21 */
22
23#ifndef LIBEXIF_EXIF_CONTENT_H
24#define LIBEXIF_EXIF_CONTENT_H
25
26#ifdef __cplusplus
27extern "C" {
28#endif /* __cplusplus */
29
32typedef struct _ExifContentPrivate ExifContentPrivate;
33
34#include <libexif/exif-tag.h>
35#include <libexif/exif-entry.h>
36#include <libexif/exif-data.h>
37#include <libexif/exif-log.h>
38#include <libexif/exif-mem.h>
39
41{
42 ExifEntry **entries;
43 unsigned int count;
44
47
48 ExifContentPrivate *priv;
49};
50
51/* Lifecycle */
52
60
69
76void exif_content_ref (ExifContent *content);
77
83void exif_content_unref (ExifContent *content);
84
92void exif_content_free (ExifContent *content);
93
102
110
120
129
130typedef void (* ExifContentForeachEntryFunc) (ExifEntry *, void *user_data);
131
140 ExifContentForeachEntryFunc func,
141 void *user_data);
142
149
158#define exif_content_get_value(c,t,v,m) \
159 (exif_content_get_entry (c,t) ? \
160 exif_entry_get_value (exif_content_get_entry (c,t),v,m) : NULL)
161
168void exif_content_dump (ExifContent *content, unsigned int indent);
169
175void exif_content_log (ExifContent *content, ExifLog *log);
176
177#ifdef __cplusplus
178}
179#endif /* __cplusplus */
180
181#endif /* !defined(LIBEXIF_EXIF_CONTENT_H) */
void exif_content_remove_entry(ExifContent *c, ExifEntry *e)
Remove an EXIF tag from an IFD.
Definition exif-content.c:163
ExifIfd exif_content_get_ifd(ExifContent *c)
Return the IFD number in which the given ExifContent is found.
Definition exif-content.c:240
void exif_content_fix(ExifContent *c)
Fix the IFD to bring it into specification.
Definition exif-content.c:284
void exif_content_ref(ExifContent *content)
Increase reference counter for ExifContent.
Definition exif-content.c:79
ExifEntry * exif_content_get_entry(ExifContent *content, ExifTag tag)
Return the ExifEntry in this IFD corresponding to the given tag.
Definition exif-content.c:202
void exif_content_unref(ExifContent *content)
Decrease reference counter for ExifContent.
Definition exif-content.c:88
void exif_content_add_entry(ExifContent *c, ExifEntry *entry)
Add an EXIF tag to an IFD.
Definition exif-content.c:139
void exif_content_dump(ExifContent *content, unsigned int indent)
Dump contents of the IFD to stdout.
Definition exif-content.c:120
void exif_content_log(ExifContent *content, ExifLog *log)
Set the log message object for this IFD.
Definition exif-content.c:229
void exif_content_foreach_entry(ExifContent *content, ExifContentForeachEntryFunc func, void *user_data)
Executes function on each EXIF tag in this IFD in turn.
Definition exif-content.c:216
ExifContent * exif_content_new_mem(ExifMem *)
Reserve memory for and initialize new ExifContent using the specified memory allocator.
Definition exif-content.c:54
ExifContent * exif_content_new(void)
Reserve memory for and initialize a new ExifContent.
Definition exif-content.c:43
void exif_content_free(ExifContent *content)
Actually free the ExifContent.
Definition exif-content.c:99
Defines the ExifData type and the associated functions.
Handling EXIF entries.
Log message infrastructure.
struct _ExifLog ExifLog
State maintained by the logging interface.
Definition exif-log.h:34
Define the ExifMem data type and the associated functions.
struct _ExifMem ExifMem
ExifMem define a memory allocator.
Definition exif-mem.h:57
Handling EXIF tags.
ExifTag
EXIF tags.
Definition exif-tag.h:34
Definition exif-content.h:41
ExifData * parent
Data containing this content.
Definition exif-content.h:46
Represents the entire EXIF data found in an image.
Definition exif-data.h:47
Data found in one EXIF tag.
Definition exif-entry.h:43