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 |
+ LF |