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/*! \file exif-loader.h
* \brief Defines the ExifLoader type
*/
/*
* Copyright (c) 2003 Lutz Mueller <lutz@users.sourceforge.net>
*
* 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 2 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __EXIF_LOADER_H__
#define __EXIF_LOADER_H__
#include <libexif/exif-data.h>
#include <libexif/exif-log.h>
#include <libexif/exif-mem.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
typedef struct _ExifLoader ExifLoader;
/*! Allocate a new ExifLoader
* \returns the allocated ExifLoader
*/
ExifLoader *exif_loader_new (void);
/*! Allocate a new ExifLoader using an ExifMem
* \param[in] mem the ExifMem
* \returns the allocated ExifLoader
*/
ExifLoader *exif_loader_new_mem (ExifMem *mem);
/*! Increase the refcount of the ExifLoader
* \param[in] loader the ExifLoader to increase the refcount of.
*/
void exif_loader_ref (ExifLoader *loader);
/*! Decrease the refcount of the ExifLoader
* \param[in] loader the ExifLoader to decrease the refcount of.
* If the refcount reaches 0, the ExifLoader is freeed.
*/
void exif_loader_unref (ExifLoader *loader);
/*! Write a file to the ExifLoader
* \param[in] loader the loader
* \param[in] fname the path to the file to read
*/
void exif_loader_write_file (ExifLoader *loader, const char *fname);
/*! Write a buffer to the ExifLoader
* \param[in] loader the loader to write too
* \param[in] buf the buffer to read from
* \param[in] sz the size of the buffer
* \returns 1 while EXIF data is read (or while there is still hope that there will be EXIF data later on), 0 otherwise.
*/
unsigned char exif_loader_write (ExifLoader *loader, unsigned char *buf, unsigned int sz);
/*! Reset the ExifLoader
* \param[in] loader the loader
*/
void exif_loader_reset (ExifLoader *loader);
/*! Get an ExifData out of an ExifLoader
* \param[in] loader the loader
* \returns and allocated ExifData
*/
ExifData *exif_loader_get_data (ExifLoader *loader);
void exif_loader_log (ExifLoader *, ExifLog *);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __EXIF_LOADER_H__ */
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