| /*! \file exif-mnote-data.h |
| * \brief Handling EXIF MakerNote tags |
| */ |
| /* |
| * 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_MNOTE_DATA_H__ |
| #define __EXIF_MNOTE_DATA_H__ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif /* __cplusplus */ |
| |
| #include <libexif/exif-log.h> |
| |
| /*! Data found in the MakerNote tag */ |
| typedef struct _ExifMnoteData ExifMnoteData; |
| |
| void exif_mnote_data_ref (ExifMnoteData *); |
| void exif_mnote_data_unref (ExifMnoteData *); |
| |
| /*! Load the MakerNote data from a memory buffer. |
| * |
| * \param[in] d MakerNote data |
| * \param[in] buf pointer to raw MakerNote tag data |
| * \param[in] buf_siz number of bytes of data at buf |
| */ |
| void exif_mnote_data_load (ExifMnoteData *d, const unsigned char *buf, |
| unsigned int buf_siz); |
| |
| /*! |
| * Save the raw MakerNote data into a memory buffer. The buffer is |
| * allocated by this function and must subsequently be freed by the |
| * caller. |
| * |
| * \param[in,out] d extract the data from this structure |
| * \param[out] buf pointer to buffer pointer containing MakerNote data on return |
| * \param[out] buf_siz pointer to the size of the buffer |
| */ |
| void exif_mnote_data_save (ExifMnoteData *d, unsigned char **buf, |
| unsigned int *buf_siz); |
| |
| /*! Return the number of tags in the MakerNote. |
| * |
| * \param[in] d MakerNote data |
| * \return number of tags, or 0 if no MakerNote or the type is not supported |
| */ |
| unsigned int exif_mnote_data_count (ExifMnoteData *d); |
| |
| /*! Return the MakerNote tag number for the tag at the specified index within |
| * the MakerNote. |
| * |
| * \param[in] d MakerNote data |
| * \param[in] n index of the entry within the MakerNote data |
| * \return MakerNote tag number |
| */ |
| unsigned int exif_mnote_data_get_id (ExifMnoteData *d, unsigned int n); |
| |
| /*! Returns textual name of the given MakerNote tag. The name is a short, |
| * unique (within this type of MakerNote), non-localized text string |
| * containing only US-ASCII alphanumeric characters. |
| * |
| * \param[in] d MakerNote data |
| * \param[in] n index of the entry within the MakerNote data |
| * \return textual name of the tag |
| */ |
| const char *exif_mnote_data_get_name (ExifMnoteData *d, unsigned int n); |
| |
| /*! Returns textual title of the given MakerNote tag. |
| * The title is a short, localized textual description of the tag. |
| * |
| * \param[in] d MakerNote data |
| * \param[in] n index of the entry within the MakerNote data |
| * \return textual name of the tag |
| */ |
| const char *exif_mnote_data_get_title (ExifMnoteData *d, unsigned int n); |
| |
| /*! Returns verbose textual description of the given MakerNote tag. |
| * |
| * \param[in] d MakerNote data |
| * \param[in] n index of the entry within the MakerNote data |
| * \return textual description of the tag |
| */ |
| const char *exif_mnote_data_get_description (ExifMnoteData *d, unsigned int n); |
| |
| /*! Return a textual representation of the value of the MakerNote entry. |
| * |
| * \warning The character set of the returned string may be in |
| * the encoding of the current locale or the native encoding |
| * of the camera. |
| * |
| * \param[in] d MakerNote data |
| * \param[in] n index of the entry within the MakerNote data |
| * \param[out] val buffer in which to store value |
| * \param[in] maxlen length of the buffer val |
| * \return val pointer, or NULL on error |
| */ |
| char *exif_mnote_data_get_value (ExifMnoteData *d, unsigned int n, char *val, unsigned int maxlen); |
| |
| void exif_mnote_data_log (ExifMnoteData *, ExifLog *); |
| |
| #ifdef __cplusplus |
| } |
| #endif /* __cplusplus */ |
| |
| #endif /* __EXIF_MNOTE_DATA_H__ */ |