/*
- * GQView
- * (C) 2004 John Ellis
+ * Copyright (C) 2006 John Ellis
+ * Copyright (C) 2008 - 2016 The Geeqie Team
*
- * Authors:
- * Support for Exif file format, originally written by Eric Swalens.
- * Modified by Quy Tonthat
- * Reimplemented with generic data storage by John Ellis
+ * Authors: Eric Swalens, Quy Tonthat, John Ellis
*
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
#ifndef __EXIF_H
#define __EXIF_H
+#define EXIF_FORMATTED() "formatted."
+#define EXIF_FORMATTED_LEN (sizeof(EXIF_FORMATTED()) - 1)
/*
*-----------------------------------------------------------------------------
*-----------------------------------------------------------------------------
*/
+#define EXIF_FORMAT_COUNT 13
+
typedef enum {
EXIF_FORMAT_UNKNOWN = 0,
EXIF_FORMAT_BYTE_UNSIGNED = 1,
EXIF_FORMAT_DOUBLE = 12
} ExifFormatType;
-typedef struct _ExifFormatAttrib ExifFormatAttrib;
-struct _ExifFormatAttrib
-{
- ExifFormatType type;
- int size;
- const char *short_name;
- const char *description;
-};
-
-/* the list of known tag data formats */
-extern ExifFormatAttrib ExifFormatList[];
-
/*
*-----------------------------------------------------------------------------
*-----------------------------------------------------------------------------
*/
-typedef struct _ExifData ExifData;
-struct _ExifData
-{
- GList *items; /* list of (ExifItem *) */
-};
+typedef struct _ExifItem ExifItem;
typedef struct _ExifRational ExifRational;
struct _ExifRational
{
- unsigned long int num;
- unsigned long int den;
+ guint32 num;
+ guint32 den;
};
-typedef struct _ExifItem ExifItem;
-typedef struct _ExifMarker ExifMarker;
-typedef struct _ExifTextList ExifTextList;
-
-struct _ExifItem
-{
- ExifFormatType format;
- int tag;
- ExifMarker *marker;
- int elements;
- gpointer data;
- int data_len;
-};
-
-struct _ExifMarker
-{
- int tag;
- ExifFormatType format;
- int components;
- char *key;
- char *description;
- ExifTextList *list;
-};
-
-struct _ExifTextList
-{
- int value;
- const char* description;
-};
-
-
-typedef struct _ExifFormattedText ExifFormattedText;
-struct _ExifFormattedText
-{
- const char *key;
- const char *description;
-};
-
-
-/*
- *-----------------------------------------------------------------------------
- * Data
- *-----------------------------------------------------------------------------
- */
-
/* enums useful for image manipulation */
typedef enum {
EXIF_UNIT_CENTIMETER = 3
} ExifUnitType;
-
-/* the known exif tags list */
-extern ExifMarker ExifKnownMarkersList[];
-
-/* the unknown tags utilize this generic list */
-extern ExifMarker ExifUnknownMarkersList[];
-
-/* the list of specially formatted keys, for human readable output */
-extern ExifFormattedText ExifFormattedList[];
-
+typedef struct _ExifFormattedText ExifFormattedText;
+struct _ExifFormattedText
+{
+ const gchar *key;
+ const gchar *description;
+ gchar *(*build_func)(ExifData *exif);
+};
/*
*-----------------------------------------------------------------------------
*-----------------------------------------------------------------------------
*/
-ExifData *exif_read(const gchar *path);
+void exif_init(void);
+
+ExifData *exif_read(gchar *path, gchar *sidecar_path, GHashTable *modified_xmp);
+
+ExifData *exif_read_fd(FileData *fd);
+void exif_free_fd(FileData *fd, ExifData *exif);
+
+/* exif_read returns processed data (merged from image and sidecar, etc.)
+ this function gives access to the original data from the image.
+ original data are part of the processed data and should not be freed separately */
+ExifData *exif_get_original(ExifData *processed);
+
+
+gboolean exif_write(ExifData *exif);
+gboolean exif_write_sidecar(ExifData *exif, gchar *path);
+
void exif_free(ExifData *exif);
gchar *exif_get_data_as_text(ExifData *exif, const gchar *key);
gint exif_get_integer(ExifData *exif, const gchar *key, gint *value);
ExifRational *exif_get_rational(ExifData *exif, const gchar *key, gint *sign);
-double exif_rational_to_double(ExifRational *r, gint sign);
ExifItem *exif_get_item(ExifData *exif, const gchar *key);
+ExifItem *exif_get_first_item(ExifData *exif);
+ExifItem *exif_get_next_item(ExifData *exif);
+
-const char *exif_item_get_tag_name(ExifItem *item);
-const char *exif_item_get_description(ExifItem *item);
-const char *exif_item_get_format_name(ExifItem *item, gint brief);
+gchar *exif_item_get_tag_name(ExifItem *item);
+guint exif_item_get_tag_id(ExifItem *item);
+guint exif_item_get_elements(ExifItem *item);
+gchar *exif_item_get_data(ExifItem *item, guint *data_len);
+gchar *exif_item_get_description(ExifItem *item);
+guint exif_item_get_format_id(ExifItem *item);
+const gchar *exif_item_get_format_name(ExifItem *item, gboolean brief);
gchar *exif_item_get_data_as_text(ExifItem *item);
gint exif_item_get_integer(ExifItem *item, gint *value);
-ExifRational *exif_item_get_rational(ExifItem *item, gint *sign);
+ExifRational *exif_item_get_rational(ExifItem *item, gint *sign, guint n);
+
+gchar *exif_item_get_string(ExifItem *item, gint idx);
+
+gchar *exif_get_description_by_key(const gchar *key);
+gchar *exif_get_tag_description_by_key(const gchar *key);
+
+gchar *exif_get_formatted_by_key(ExifData *exif, const gchar *key, gboolean *key_valid);
+
+gint exif_update_metadata(ExifData *exif, const gchar *key, const GList *values);
+GList *exif_get_metadata(ExifData *exif, const gchar *key, MetadataFormat format);
+
+guchar *exif_get_color_profile(ExifData *exif, guint *data_len);
+
+/* jpeg embedded icc support */
+
+void exif_add_jpeg_color_profile(ExifData *exif, guchar *cp_data, guint cp_length);
+
+
+gboolean exif_jpeg_parse_color(ExifData *exif, guchar *data, guint size);
-const gchar *exif_get_description_by_key(const gchar *key);
+/* support for so called "jpeg comment" */
+gchar* exif_get_image_comment(FileData* fd);
+void exif_set_image_comment(FileData* fd, const gchar* comment);
-/* usually for debugging to stdout */
-void exif_write_data_list(ExifData *exif, FILE *f, gint human_readable_list);
+/*raw support */
+guchar *exif_get_preview(ExifData *exif, guint *data_len, gint requested_width, gint requested_height);
+void exif_free_preview(guchar *buf);
+gchar *metadata_file_info(FileData *fd, const gchar *key, MetadataFormat format);
#endif
+/* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */
projects / geeqie.git / blobdiff