Add libexif to deps/third_party.

libexif/sources/libexif/exif-mnote-data.h

+/*! \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__ */