| Index: libexif/sources/libexif/exif-loader.h
|
| ===================================================================
|
| --- libexif/sources/libexif/exif-loader.h (revision 0)
|
| +++ libexif/sources/libexif/exif-loader.h (revision 0)
|
| @@ -0,0 +1,128 @@
|
| +/*! \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., 51 Franklin Street, Fifth Floor,
|
| + * Boston, MA 02110-1301 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 */
|
| +
|
| +/*! Data used by the loader interface */
|
| +typedef struct _ExifLoader ExifLoader;
|
| +
|
| +/*! Allocate a new #ExifLoader.
|
| + *
|
| + * \return allocated ExifLoader
|
| + */
|
| +ExifLoader *exif_loader_new (void);
|
| +
|
| +/*! Allocate a new #ExifLoader using the specified memory allocator.
|
| + *
|
| + * \param[in] mem the ExifMem
|
| + * \return 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.
|
| + * If the refcount reaches 0, the loader is freed.
|
| + *
|
| + * \param[in] loader ExifLoader for which to decrease the refcount
|
| + */
|
| +void exif_loader_unref (ExifLoader *loader);
|
| +
|
| +/*! Load a file into the given #ExifLoader from the filesystem.
|
| + * The relevant data is copied in raw form into the #ExifLoader.
|
| + *
|
| + * \param[in] loader loader to write to
|
| + * \param[in] fname path to the file to read
|
| + */
|
| +void exif_loader_write_file (ExifLoader *loader, const char *fname);
|
| +
|
| +/*! Load a buffer into the #ExifLoader from a memory buffer.
|
| + * The relevant data is copied in raw form into the #ExifLoader.
|
| + *
|
| + * \param[in] loader loader to write to
|
| + * \param[in] buf buffer to read from
|
| + * \param[in] sz size of the buffer
|
| + * \return 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);
|
| +
|
| +/*! Free any data previously loaded and reset the #ExifLoader to its
|
| + * newly-initialized state.
|
| + *
|
| + * \param[in] loader the loader
|
| + */
|
| +void exif_loader_reset (ExifLoader *loader);
|
| +
|
| +/*! Create an #ExifData from the data in the loader. The loader must
|
| + * already contain data from a previous call to #exif_loader_write_file
|
| + * or #exif_loader_write.
|
| + *
|
| + * \note The #ExifData returned is created using its default options, which
|
| + * may take effect before the data is returned. If other options are desired,
|
| + * an #ExifData must be created explicitly and data extracted from the loader
|
| + * using #exif_loader_get_buf instead.
|
| + *
|
| + * \param[in] loader the loader
|
| + * \return allocated ExifData
|
| + *
|
| + * \see exif_loader_get_buf
|
| + */
|
| +ExifData *exif_loader_get_data (ExifLoader *loader);
|
| +
|
| +/*! Return the raw data read by the loader. The returned pointer is only
|
| + * guaranteed to be valid until the next call to a function modifying
|
| + * this #ExifLoader. Either or both of buf and buf_size may be NULL on
|
| + * entry, in which case that value is not returned.
|
| + *
|
| + * \param[in] loader the loader
|
| + * \param[out] buf read-only pointer to the data read by the loader, or NULL
|
| + * in case of error
|
| + * \param[out] buf_size size of the data at buf, or 0 in case of error
|
| + */
|
| +void exif_loader_get_buf (ExifLoader *loader, const unsigned char **buf,
|
| + unsigned int *buf_size);
|
| +
|
| +/*! Set the log message object used by this #ExifLoader.
|
| + * \param[in] loader the loader
|
| + * \param[in] log #ExifLog
|
| + */
|
| +void exif_loader_log (ExifLoader *loader, ExifLog *log);
|
| +
|
| +#ifdef __cplusplus
|
| +}
|
| +#endif /* __cplusplus */
|
| +
|
| +#endif /* __EXIF_LOADER_H__ */
|
|
|
| Property changes on: libexif/sources/libexif/exif-loader.h
|
| ___________________________________________________________________
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| Added: svn:eol-style
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| + LF
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