Tizen Native API
|
Functions | |
int | media_folder_get_folder_count_from_db (filter_h filter, int *folder_count) |
Gets the count of folder for the passed filter from the media database. | |
int | media_folder_foreach_folder_from_db (filter_h filter, media_folder_cb callback, void *user_data) |
Iterates through available media folders with optional filter from the media database. | |
int | media_folder_get_media_count_from_db (const char *folder_id, filter_h filter, int *media_count) |
Gets the count of media files for the passed filter in the given folder from the media database. | |
int | media_folder_foreach_media_from_db (const char *folder_id, filter_h filter, media_info_cb callback, void *user_data) |
Iterates through the media files with an optional filter in the given folder from the media database. | |
int | media_folder_clone (media_folder_h *dst, media_folder_h src) |
Clones the media folder. | |
int | media_folder_destroy (media_folder_h folder) |
Destroys the media folder. | |
int | media_folder_get_folder_id (media_folder_h folder, char **folder_id) |
Gets the media folder ID. | |
int | media_folder_get_parent_folder_id (media_folder_h folder, char **parent_folder_id) |
Gets the parent folder ID. | |
int | media_folder_get_path (media_folder_h folder, char **path) |
Gets the absolute path to the media folder. | |
int | media_folder_get_name (media_folder_h folder, char **folder_name) |
Gets the media folder name. | |
int | media_folder_get_modified_time (media_folder_h folder, time_t *date) |
Gets the modified date of the folder. | |
int | media_folder_get_storage_type (media_folder_h folder, media_content_storage_e *storage_type) |
Gets the folder storage type. | |
int | media_folder_get_storage_id (media_folder_h folder, char **storage_id) |
Gets the storage id of the folder. | |
int | media_folder_get_order (media_folder_h folder, int *order) |
Gets the folder viewing order. | |
int | media_folder_get_folder_from_db (const char *folder_id, media_folder_h *folder) |
Gets the media folder from the media database. | |
int | media_folder_set_name (media_folder_h folder, const char *name) |
Sets the folder name. | |
int | media_folder_set_order (media_folder_h folder, int order) |
Sets the folder viewing order. | |
int | media_folder_update_to_db (media_folder_h folder) |
Updates the media folder to the media database. | |
Typedefs | |
typedef struct media_folder_s * | media_folder_h |
The structure type for the Media folder handle. | |
typedef bool(* | media_folder_cb )(media_folder_h folder, void *user_data) |
Called for every available media folder. | |
Defines | |
#define | FOLDER_ID "FOLDER_ID" |
Folder ID. You can use above define to set the condition of folder filter and order keyword. | |
#define | FOLDER_PATH "FOLDER_PATH" |
Folder path. You can use above define to set the condition of folder filter and order keyword. | |
#define | FOLDER_NAME "FOLDER_NAME" |
Folder base name. You can use above define to set the condition of folder filter and order keyword. | |
#define | FOLDER_MODIFIED_TIME "FOLDER_MODIFIED_TIME" |
Folder modified time. You can use above define to set the condition of folder filter and order keyword. | |
#define | FOLDER_STORAGE_TYPE "FOLDER_STORAGE_TYPE" |
Folder storage type (0-internal storage, 1-external storage). You can use above define to set the condition of folder filter and order keyword. | |
#define | FOLDER_NAME_PINYIN "FOLDER_NAME_PINYIN" |
Folder name pinyin. You can use above define to set the condition of folder filter and order keyword. | |
#define | FOLDER_ORDER "FOLDER_ORDER" |
Folder order info. You can use above define to set the condition of folder filter and order keyword. | |
#define | FOLDER_PARENT_FOLDER_ID "FOLDER_PARENT_FOLDER_ID" |
Parent folder ID. You can use above define to set the condition of folder filter and order keyword. |
The Media folder API provides functions to get information about folders.
Required Header
#include <media_content.h>
Overview
A Folder is used to organize media content files i.e. image, audio, video files, in the physical storage of the device. The Media Folder API provides functions to get basic information about existing folders e.g. folder name, path and storage type. It also provides functions to get information related to media items present in the folder.
For getting information about folder call the respective get functions e.g. to get path and name of a given folder call media_folder_get_path() and media_folder_get_name() function respectively and so on.
Similarly call media_folder_get_media_count_from_db() to get count of media items present in a given folder.
Foreach Operations
FOREACH | CALLBACK | DESCRIPTION |
---|---|---|
media_folder_foreach_folder_from_db() | media_folder_cb() | Iterates over a folder information list |
media_folder_foreach_media_from_db() | media_info_cb() | Iterates media information trough the folder |
Define Documentation
#define FOLDER_ID "FOLDER_ID" |
Folder ID. You can use above define to set the condition of folder filter and order keyword.
- Since :
- 2.3
#define FOLDER_MODIFIED_TIME "FOLDER_MODIFIED_TIME" |
Folder modified time. You can use above define to set the condition of folder filter and order keyword.
- Since :
- 2.3
#define FOLDER_NAME "FOLDER_NAME" |
Folder base name. You can use above define to set the condition of folder filter and order keyword.
- Since :
- 2.3
#define FOLDER_NAME_PINYIN "FOLDER_NAME_PINYIN" |
Folder name pinyin. You can use above define to set the condition of folder filter and order keyword.
- Since :
- 2.3
#define FOLDER_ORDER "FOLDER_ORDER" |
Folder order info. You can use above define to set the condition of folder filter and order keyword.
- Since :
- 2.4
#define FOLDER_PARENT_FOLDER_ID "FOLDER_PARENT_FOLDER_ID" |
Parent folder ID. You can use above define to set the condition of folder filter and order keyword.
- Since :
- 2.4
#define FOLDER_PATH "FOLDER_PATH" |
Folder path. You can use above define to set the condition of folder filter and order keyword.
- Since :
- 2.3
#define FOLDER_STORAGE_TYPE "FOLDER_STORAGE_TYPE" |
Folder storage type (0-internal storage, 1-external storage). You can use above define to set the condition of folder filter and order keyword.
- Since :
- 2.3
Typedef Documentation
typedef bool(* media_folder_cb)(media_folder_h folder, void *user_data) |
Called for every available media folder.
- Since :
- 2.3
Iterates over a list of folders.
- Remarks:
- To use the folder outside this function, copy the handle with the media_folder_clone() function.
- Parameters:
-
[in] folder The handle to the media folder [in] user_data The user data passed from the foreach function
- Returns:
true
to continue with the next iteration of the loop, otherwisefalse
to break out of the loop
- Precondition:
- media_folder_foreach_folder_from_db() will invoke this function.
typedef struct media_folder_s* media_folder_h |
The structure type for the Media folder handle.
- Since :
- 2.3
Function Documentation
int media_folder_clone | ( | media_folder_h * | dst, |
media_folder_h | src | ||
) |
Clones the media folder.
This function copies the media folder handle from a source to destination. There is no media_folder_create() function. The media_folder_h is created internally and available through media folder foreach function such as media_folder_foreach_folder_from_db(). To use this handle outside of these foreach functions, use this function.
- Since :
- 2.3
- Remarks:
- The destination handle must be released with media_folder_destroy().
- Parameters:
-
[out] dst The destination handle to the media folder [in] src The source handle to the media folder
- Returns:
0
on success, otherwise a negative error value
- Return values:
-
MEDIA_CONTENT_ERROR_NONE Successful MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter MEDIA_CONTENT_ERROR_PERMISSION_DENIED Permission denied
int media_folder_destroy | ( | media_folder_h | folder | ) |
Destroys the media folder.
The function frees all resources related to the folder handle. This handle no longer can be used to perform any operation. A new handle has to be created before the next use.
- Since :
- 2.3
- Parameters:
-
[in] folder The handle to the media folder
- Returns:
0
on success, otherwise a negative error value
- Return values:
-
MEDIA_CONTENT_ERROR_NONE Successful MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter MEDIA_CONTENT_ERROR_PERMISSION_DENIED Permission denied
- Precondition:
- A copy of the media folder handle created by calling media_folder_clone().
- See also:
- media_folder_clone()
int media_folder_foreach_folder_from_db | ( | filter_h | filter, |
media_folder_cb | callback, | ||
void * | user_data | ||
) |
Iterates through available media folders with optional filter from the media database.
This function gets the media folder meeting the given filter. The callback function will be invoked for every retrieved folder. If NULL
is passed to the filter, no filtering is applied.
- Since :
- 2.3
- Remarks:
- Do not call updating DB fuction like media_folder_update_to_db() in your callback function, your callback function is invoked as inline function.
So, your callback function is in read state in SQLite. When you are in read state, sometimes you do not update DB.
We do not recommend you call updating DB function in callback of foreach function.
- Parameters:
-
[in] filter The handle to the media folder filter [in] callback The callback function to be invoked [in] user_data The user data to be passed to the callback function
- Returns:
0
on success, otherwise a negative error value
- Return values:
-
MEDIA_CONTENT_ERROR_NONE Successful MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter MEDIA_CONTENT_ERROR_OUT_OF_MEMORY Out of memory MEDIA_CONTENT_ERROR_DB_FAILED DB Operation failed MEDIA_CONTENT_ERROR_DB_BUSY DB Operation busy MEDIA_CONTENT_ERROR_PERMISSION_DENIED Permission denied
- Precondition:
- This function requires opened connection to content service by media_content_connect().
- A filter handle has to be created by calling media_filter_create().
- Postcondition:
- This function invokes media_folder_cb().
int media_folder_foreach_media_from_db | ( | const char * | folder_id, |
filter_h | filter, | ||
media_info_cb | callback, | ||
void * | user_data | ||
) |
Iterates through the media files with an optional filter in the given folder from the media database.
This function gets all media files associated with the given folder and meeting desired filter option and calls registered callback function for every retrieved media item. If NULL
is passed to the filter, no filtering is applied.
- Since :
- 2.3
- 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, your callback function is invoked as inline function.
So, your callback function is in read state in SQLite. When you are in read state, sometimes you do not update DB.
We do not recommend you call updating DB function in callback of foreach function.
- Parameters:
-
[in] folder_id The ID of the media folder [in] filter The handle to the media info filter [in] callback The callback function to be invoked [in] user_data The user data to be passed to the callback function
- Returns:
0
on success, otherwise a negative error value
- Return values:
-
MEDIA_CONTENT_ERROR_NONE Successful MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter MEDIA_CONTENT_ERROR_OUT_OF_MEMORY Out of memory MEDIA_CONTENT_ERROR_DB_FAILED DB Operation failed MEDIA_CONTENT_ERROR_DB_BUSY DB Operation busy MEDIA_CONTENT_ERROR_PERMISSION_DENIED Permission denied
- Precondition:
- This function requires opened connection to content service by media_content_connect().
- Postcondition:
- This function invokes media_info_cb().
int media_folder_get_folder_count_from_db | ( | filter_h | filter, |
int * | folder_count | ||
) |
Gets the count of folder for the passed filter from the media database.
- Since :
- 2.3
- Parameters:
-
[in] filter The handle to filter
To allow searching over different content types, you should use filter_h.[out] folder_count The count of the media folder
- Returns:
0
on success, otherwise a negative error value
- Return values:
-
MEDIA_CONTENT_ERROR_NONE Successful MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter MEDIA_CONTENT_ERROR_DB_FAILED DB Operation failed MEDIA_CONTENT_ERROR_DB_BUSY DB Operation busy MEDIA_CONTENT_ERROR_PERMISSION_DENIED Permission denied
- Precondition:
- This function requires opened connection to content service by media_content_connect().
- See also:
- media_content_connect()
int media_folder_get_folder_from_db | ( | const char * | folder_id, |
media_folder_h * | folder | ||
) |
Gets the media folder from the media database.
This function creates a new media folder handle from the media database by the given folder_id. Media folder will be created, which is filled with folder information.
- Since :
- 2.3
- Remarks:
- You must release folder using media_folder_destroy().
- Parameters:
-
[in] folder_id The ID of the media folder [out] folder The media folder handle associated with the folder ID
- Returns:
0
on success, otherwise a negative error value
- Return values:
-
MEDIA_CONTENT_ERROR_NONE Successful MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter MEDIA_CONTENT_ERROR_PERMISSION_DENIED Permission denied
- Precondition:
- This function requires opened connection to content service by media_content_connect().
int media_folder_get_folder_id | ( | media_folder_h | folder, |
char ** | folder_id | ||
) |
Gets the media folder ID.
- Since :
- 2.3
- Remarks:
- You must release folder_id using free().
- Parameters:
-
[in] folder The handle to the media folder [out] folder_id The ID of the media folder
- Returns:
0
on success, otherwise a negative error value
- Return values:
-
MEDIA_CONTENT_ERROR_NONE Successful MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter MEDIA_CONTENT_ERROR_PERMISSION_DENIED Permission denied
int media_folder_get_media_count_from_db | ( | const char * | folder_id, |
filter_h | filter, | ||
int * | media_count | ||
) |
Gets the count of media files for the passed filter in the given folder from the media database.
- Since :
- 2.3
- Parameters:
-
[in] folder_id The ID of the media folder [in] filter The filter of the media content [out] media_count The count of media folder items
- Returns:
0
on success, otherwise a negative error value
- Return values:
-
MEDIA_CONTENT_ERROR_NONE Successful MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter MEDIA_CONTENT_ERROR_DB_FAILED DB Operation failed MEDIA_CONTENT_ERROR_DB_BUSY DB Operation busy MEDIA_CONTENT_ERROR_PERMISSION_DENIED Permission denied
- Precondition:
- This function requires opened connection to content service by media_content_connect().
- See also:
- media_content_connect()
int media_folder_get_modified_time | ( | media_folder_h | folder, |
time_t * | date | ||
) |
Gets the modified date of the folder.
- Since :
- 2.3
- Parameters:
-
[in] folder The handle to the media folder [out] date The modified date of the folder
- Returns:
0
on success, otherwise a negative error value
- Return values:
-
MEDIA_CONTENT_ERROR_NONE Successful MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter
int media_folder_get_name | ( | media_folder_h | folder, |
char ** | folder_name | ||
) |
Gets the media folder name.
- Since :
- 2.3
- Remarks:
- You must release folder_name using free().
- Parameters:
-
[in] folder The handle to the media folder [out] folder_name The name of the media folder
- Returns:
0
on success, otherwise a negative error value
- Return values:
-
MEDIA_CONTENT_ERROR_NONE Successful MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter MEDIA_CONTENT_ERROR_OUT_OF_MEMORY Out of memory MEDIA_CONTENT_ERROR_PERMISSION_DENIED Permission denied
int media_folder_get_order | ( | media_folder_h | folder, |
int * | order | ||
) |
Gets the folder viewing order.
- Since :
- 2.4
- Parameters:
-
[in] folder The handle to the media folder [out] order The viewing order of the media folder
- Returns:
0
on success, otherwise a negative error value
- Return values:
-
MEDIA_CONTENT_ERROR_NONE Successful MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter MEDIA_CONTENT_ERROR_OUT_OF_MEMORY Out of memory MEDIA_CONTENT_ERROR_PERMISSION_DENIED Permission denied
- Postcondition:
- media_folder_update_to_db()
int media_folder_get_parent_folder_id | ( | media_folder_h | folder, |
char ** | parent_folder_id | ||
) |
Gets the parent folder ID.
- Since :
- 2.4
- Remarks:
- You must release parent_folder_id using free().
- Parameters:
-
[in] folder The handle to the media folder [out] parent_folder_id The ID of the upper media folder
- Returns:
0
on success, otherwise a negative error value
- Return values:
-
MEDIA_CONTENT_ERROR_NONE Successful MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter MEDIA_CONTENT_ERROR_PERMISSION_DENIED Permission denied
int media_folder_get_path | ( | media_folder_h | folder, |
char ** | path | ||
) |
Gets the absolute path to the media folder.
- Since :
- 2.3
- Remarks:
- You must release path using free().
- Parameters:
-
[in] folder The handle to the media folder [out] path The path of the media folder
- Returns:
0
on success, otherwise a negative error value
- Return values:
-
MEDIA_CONTENT_ERROR_NONE Successful MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter MEDIA_CONTENT_ERROR_OUT_OF_MEMORY Out of memory MEDIA_CONTENT_ERROR_PERMISSION_DENIED Permission denied
int media_folder_get_storage_id | ( | media_folder_h | folder, |
char ** | storage_id | ||
) |
Gets the storage id of the folder.
- Since :
- 2.4
- Remarks:
- You must release storage_id using free().
- Parameters:
-
[in] folder The handle to the media folder [out] storage_id The storage id of the media folder
- Returns:
0
on success, otherwise a negative error value
- Return values:
-
MEDIA_CONTENT_ERROR_NONE Successful MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter MEDIA_CONTENT_ERROR_OUT_OF_MEMORY Out of memory MEDIA_CONTENT_ERROR_PERMISSION_DENIED Permission denied
int media_folder_get_storage_type | ( | media_folder_h | folder, |
media_content_storage_e * | storage_type | ||
) |
Gets the folder storage type.
- Since :
- 2.3
- Parameters:
-
[in] folder The handle to the media folder [out] storage_type The storage type of the media folder
- Returns:
0
on success, otherwise a negative error value
- Return values:
-
MEDIA_CONTENT_ERROR_NONE Successful MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter MEDIA_CONTENT_ERROR_PERMISSION_DENIED Permission denied
int media_folder_set_name | ( | media_folder_h | folder, |
const char * | name | ||
) |
Sets the folder name.
- Since :
- 2.3
- Parameters:
-
[in] folder The handle to the media folder [in] name The name of the media folder
- Returns:
0
on success, otherwise a negative error value
- Return values:
-
MEDIA_CONTENT_ERROR_NONE Successful MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter MEDIA_CONTENT_ERROR_OUT_OF_MEMORY Out of memory MEDIA_CONTENT_ERROR_PERMISSION_DENIED Permission denied
- Postcondition:
- media_folder_update_to_db()
int media_folder_set_order | ( | media_folder_h | folder, |
int | order | ||
) |
Sets the folder viewing order.
If you set the order value for each folder, you can sort in ascending or descending order as the set order values using the filter.
Moreover, more detailed settings are possible when used with the filter.
- Since :
- 2.4
- Remarks:
- If you don't set the order value, the order value will be set default value. Default is 0.
If you don't use the filter, the set order value does not effect the folder viewing order.
- Parameters:
-
[in] folder The handle to the media folder [in] order The viewing order of the media folder
- Returns:
0
on success, otherwise a negative error value
- Return values:
-
MEDIA_CONTENT_ERROR_NONE Successful MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter MEDIA_CONTENT_ERROR_OUT_OF_MEMORY Out of memory MEDIA_CONTENT_ERROR_PERMISSION_DENIED Permission denied
- Postcondition:
- media_folder_update_to_db()
int media_folder_update_to_db | ( | media_folder_h | folder | ) |
Updates the media folder to the media database.
The function updates the given media folder in the media database. The function should be called after any change in folder attributes, to be updated to the media database. For example, after using media_folder_set_name() for setting the name of the folder, the media_folder_update_to_db() function should be called so as to update the given folder attributes in the media database.
- Since :
- 2.3
- Privilege Level:
- public
- Privilege:
- http://tizen.org/privilege/content.write
- Parameters:
-
[in] folder The handle to the media folder
- Returns:
0
on success, otherwise a negative error value
- Return values:
-
MEDIA_CONTENT_ERROR_NONE Successful MEDIA_CONTENT_ERROR_INVALID_PARAMETER Invalid parameter MEDIA_CONTENT_ERROR_OUT_OF_MEMORY Out of memory MEDIA_CONTENT_ERROR_INVALID_OPERATION Invalid operation MEDIA_CONTENT_ERROR_DB_FAILED DB Operation failed MEDIA_CONTENT_ERROR_DB_BUSY DB Operation busy MEDIA_CONTENT_ERROR_NETWORK Network fail MEDIA_CONTENT_ERROR_PERMISSION_DENIED Permission denied
- Precondition:
- This function requires opened connection to content service by media_content_connect().
- If you do not set new name of folder by using media_folder_set_name(), your updating function is failed.