2 * Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 #ifndef __TIZEN_MEDIA_STORAGE_H__
19 #define __TIZEN_MEDIA_STORAGE_H__
22 #include <media_content_type.h>
27 #endif /* __cplusplus */
30 * @file media_storage.h
31 * @brief This file contains API on main functional operations with storage that are related to media resources in the media database. \n
32 * Operations include: getting number of storages, cloning and destroying storage, getting storage`s ID, name, path and type.
36 * @brief Gets media storage from database.
39 * @param[in] storage_id The storage id to get media storage info
40 * @param[out] storage The media storage handle
42 * @return @c 0 on success,
43 * otherwise a negative error value
45 * @retval #MEDIA_CONTENT_ERROR_NONE Successful
46 * @retval #MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter
47 * @retval #MEDIA_CONTENT_ERROR_OUT_OF_MEMORY Out of memory
48 * @retval #MEDIA_CONTENT_ERROR_DB_FAILED DB Operation failed
49 * @retval #MEDIA_CONTENT_ERROR_DB_BUSY DB Operation busy
50 * @retval #MEDIA_CONTENT_ERROR_PERMISSION_DENIED Permission denied
53 * @pre This function requires opened connection to content service by media_content_connect().
55 * @see media_content_connect()
57 int media_storage_get_storage_info_from_db(const char *storage_id, media_storage_h *storage);
60 * @brief Gets the count of media storage for the passed @a filter from the media database.
63 * @param[in] filter The handle to filter
64 * @param[out] storage_count The count of storage
66 * @return @c 0 on success,
67 * otherwise a negative error value
69 * @retval #MEDIA_CONTENT_ERROR_NONE Successful
70 * @retval #MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter
71 * @retval #MEDIA_CONTENT_ERROR_INVALID_OPERATION Invalid operation
72 * @retval #MEDIA_CONTENT_ERROR_DB_FAILED DB Operation failed
73 * @retval #MEDIA_CONTENT_ERROR_DB_BUSY DB Operation busy
74 * @retval #MEDIA_CONTENT_ERROR_PERMISSION_DENIED Permission denied
76 * @pre This function requires opened connection to content service by media_content_connect().
78 * @see media_content_connect()
80 int media_storage_get_storage_count_from_db(filter_h filter, int *storage_count);
83 * @brief Iterates through media storage from the media database.
84 * @details This function gets all media storage handles meeting the given @a filter.
85 * The @a callback function will be invoked for every retrieved media storage.
86 * If @c NULL is passed to the @a filter, then no filtering is applied.
90 * @param[in] filter The media storage handle filter
91 * @param[in] callback The callback function to be invoked
92 * @param[in] user_data The user data to be passed to the callback function
94 * @return @c 0 on success,
95 * otherwise a negative error value
97 * @retval #MEDIA_CONTENT_ERROR_NONE Successful
98 * @retval #MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter
99 * @retval #MEDIA_CONTENT_ERROR_OUT_OF_MEMORY Out of memory
100 * @retval #MEDIA_CONTENT_ERROR_DB_FAILED DB Operation failed
101 * @retval #MEDIA_CONTENT_ERROR_DB_BUSY DB Operation busy
102 * @retval #MEDIA_CONTENT_ERROR_PERMISSION_DENIED Permission denied
104 * @pre This function requires opened connection to content service by media_content_connect().
105 * @post This function invokes media_storage_destroy().
107 * @see media_content_connect()
108 * @see media_storage_destroy()
110 int media_storage_foreach_storage_from_db(filter_h filter, media_storage_cb callback, void *user_data);
113 * @brief Gets the count of media files for the passed @a filter in the given @a storage from the media database.
116 * @param[in] storage_id The ID of the media storage
117 * @param[in] filter The filter of the media content
118 * @param[out] media_count The count of media storage items
120 * @return @c 0 on success,
121 * otherwise a negative error value
123 * @retval #MEDIA_CONTENT_ERROR_NONE Successful
124 * @retval #MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter
125 * @retval #MEDIA_CONTENT_ERROR_DB_FAILED DB Operation failed
126 * @retval #MEDIA_CONTENT_ERROR_DB_BUSY DB Operation busy
127 * @retval #MEDIA_CONTENT_ERROR_PERMISSION_DENIED Permission denied
129 * @pre This function requires opened connection to content service by media_content_connect().
131 * @see media_content_connect()
133 int media_storage_get_media_count_from_db(const char *storage_id, filter_h filter, int *media_count);
136 * @brief Iterates through the media files with an optional @a filter in the given @a storage from the media database.
137 * @details This function gets all media files associated with the given storage and
138 * meeting desired filter option and calls registered callback function for
139 * every retrieved media item. If @c NULL is passed to the @a filter, no filtering is applied.
143 * @remarks Do not call updating DB function like media_info_update_to_db(), media_info_refresh_metadata_to_db(), audio_meta_update_to_db(), image_meta_update_to_db() and video_meta_update_to_db() in your callback function,
144 * your callback function is invoked as inline function. \n
145 * So, your callback function is in read state in SQLite. When you are in read state, sometimes you do not update DB. \n
146 * We do not recommend you call updating DB function in callback of foreach function.
148 * @param[in] storage_id The ID of the media storage
149 * @param[in] filter The handle to the media info filter
150 * @param[in] callback The callback function to be invoked
151 * @param[in] user_data The user data to be passed to the callback function
153 * @return @c 0 on success,
154 * otherwise a negative error value
156 * @retval #MEDIA_CONTENT_ERROR_NONE Successful
157 * @retval #MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter
158 * @retval #MEDIA_CONTENT_ERROR_OUT_OF_MEMORY Out of memory
159 * @retval #MEDIA_CONTENT_ERROR_DB_FAILED DB Operation failed
160 * @retval #MEDIA_CONTENT_ERROR_DB_BUSY DB Operation busy
161 * @retval #MEDIA_CONTENT_ERROR_PERMISSION_DENIED Permission denied
163 * @pre This function requires opened connection to content service by media_content_connect().
164 * @post This function invokes media_info_cb().
166 * @see #media_info_cb
167 * @see media_content_connect()
168 * @see media_filter_create()
170 int media_storage_foreach_media_from_db(const char *storage_id, filter_h filter, media_info_cb callback, void *user_data);
173 * @brief Destroys media storage handle.
174 * @details The function frees all resources related to the media storage handle. This handle
175 * can no longer be used to perform any operation. New media storage handle has to
176 * be created before the next usage.
180 * @param[in] storage The media storage handle
182 * @return @c 0 on success,
183 * otherwise a negative error value
185 * @retval #MEDIA_CONTENT_ERROR_NONE Successful
186 * @retval #MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter
188 * @pre Get copy of media_storage_h handle by calling media_storage_clone().
190 * @see media_storage_clone()
192 int media_storage_destroy(media_storage_h storage);
195 * @brief Clones the media storage handle.
197 * @details This function copies the media storage handle from a source to the destination.
198 * There is no media_storage_create() function. The media_storage_h is created internally and
199 * available through media storage foreach function such as media_storage_foreach_storage_from_db().
200 * To use this handle outside of these foreach functions, use this function.
204 * @remarks You must release the destination handle using media_storage_destroy().
206 * @param[out] dst The destination handle to the media storage
207 * @param[in] src The source handle to media storage
209 * @return @c 0 on success,
210 * otherwise a negative error value
212 * @retval #MEDIA_CONTENT_ERROR_NONE Successful
213 * @retval #MEDIA_CONTENT_ERROR_OUT_OF_MEMORY Out of memory
214 * @retval #MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter
216 * @see media_storage_destroy()
217 * @see media_storage_foreach_storage_from_db()
218 * @see media_storage_get_storage_info_from_db()
220 int media_storage_clone(media_storage_h *dst, media_storage_h src);
223 * @brief Gets the storage id of media storage.
226 * @remarks You must release @a storage_id using free().
228 * @param[in] storage The media storage handle
229 * @param[out] storage_id The storage id of the media storage
231 * @return @c 0 on success,
232 * otherwise a negative error value
234 * @retval #MEDIA_CONTENT_ERROR_NONE Successful
235 * @retval #MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter
236 * @retval #MEDIA_CONTENT_ERROR_OUT_OF_MEMORY Out of memory
238 int media_storage_get_id(media_storage_h storage, char **storage_id);
241 * @brief Gets the storage name of media storage.
244 * @remarks You must release @a storage_name using free().
246 * @param[in] storage The media storage handle
247 * @param[out] storage_name The storage name of the media storage
249 * @return @c 0 on success,
250 * otherwise a negative error value
252 * @retval #MEDIA_CONTENT_ERROR_NONE Successful
253 * @retval #MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter
254 * @retval #MEDIA_CONTENT_ERROR_OUT_OF_MEMORY Out of memory
256 int media_storage_get_name(media_storage_h storage, char **storage_name);
259 * @brief Gets the storage path of media storage.
262 * @remarks You must release @a storage_path using free().
264 * @param[in] storage The media storage handle
265 * @param[out] storage_path The storage path of the media storage
267 * @return @c 0 on success,
268 * otherwise a negative error value
270 * @retval #MEDIA_CONTENT_ERROR_NONE Successful
271 * @retval #MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter
272 * @retval #MEDIA_CONTENT_ERROR_OUT_OF_MEMORY Out of memory
274 int media_storage_get_path(media_storage_h storage, char **storage_path);
277 * @brief Gets the storage type of media storage.
280 * @param[in] storage The media storage handle
281 * @param[out] storage_type The storage type of the media storage
283 * @return @c 0 on success,
284 * otherwise a negative error value
286 * @retval #MEDIA_CONTENT_ERROR_NONE Successful
287 * @retval #MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter
289 int media_storage_get_type(media_storage_h storage, media_content_storage_e *storage_type);
293 #endif /* __cplusplus */
295 #endif /* __TIZEN_MEDIA_STORAGE_H__ */