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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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.
*
* The Original Code is Copyright (C) 2005 Blender Foundation
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): Austin Benesh. Ton Roosendaal.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/imbuf/intern/IMB_metadata.h
* \ingroup imbuf
*/
#ifndef __IMB_METADATA_H__
#define __IMB_METADATA_H__
struct ImBuf;
typedef struct ImMetaData {
struct ImMetaData *next, *prev;
char *key;
char *value;
int len;
} ImMetaData;
/** The metadata is a list of key/value pairs (both char*) that can me
* saved in the header of several image formats.
* Apart from some common keys like
* 'Software' and 'Description' (png standard) we'll use keys within the
* Blender namespace, so should be called 'Blender::StampInfo' or 'Blender::FrameNum'
* etc...
*/
/* free blender ImMetaData struct */
void IMB_metadata_free(struct ImBuf *img);
/** read the field from the image info into the field
* \param img - the ImBuf that contains the image data
* \param key - the key of the field
* \param value - the data in the field, first one found with key is returned,
* memory has to be allocated by user.
* \param len - length of value buffer allocated by user.
* \return - 1 (true) if ImageInfo present and value for the key found, 0 (false) otherwise
*/
int IMB_metadata_get_field(struct ImBuf *img, const char *key, char *value, int len);
/** set user data in the ImMetaData struct, which has to be allocated with IMB_metadata_create
* before calling this function.
* \param img - the ImBuf that contains the image data
* \param key - the key of the field
* \param value - the data to be written to the field. zero terminated string
* \return - 1 (true) if ImageInfo present, 0 (false) otherwise
*/
int IMB_metadata_add_field(struct ImBuf *img, const char *key, const char *value);
/** delete the key/field par in the ImMetaData struct.
* \param img - the ImBuf that contains the image data
* \param key - the key of the field
* \return - 1 (true) if delete the key/field, 0 (false) otherwise
*/
int IMB_metadata_del_field(struct ImBuf *img, const char *key);
#endif /* __IMB_METADATA_H__ */
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