Tizen Native API  9.0
Functions | Typedefs | Defines
Media Content
Content

The Media Content API provides functions, enumerations used in the entire Content Service.

Required Header

#include <media_content.h>

Overview

The Media Content API provides functions and enumerations used in the entire Content Service.
The information about media items i.e. image, audio, video and ebook, are managed in the content database and operations that involve database requires an active connection with the media content service.
During media scanning, Media Service extract media information automatically. media information include basic file info like path, size, modified time etc and some metadata like ID3tag, EXIF, thumbnail, etc. (thumbnail extracted only in Internal and SD card storage.)
Since 3.0, a thumbnail is not automatically extracted during media scanning. A thumbnail will be created only when media_info_generate_thumbnail() is called by any application.
Media content services do not manage hidden files.
The API provides functions for connecting (media_content_connect()) and disconnecting (media_content_disconnect()) from the media content service.

The API consists of Media Album, Media Bookmark (Deprecated), Media Face(Deprecated), Media Filter, Media Folder, Media Group, Media Information, Media Playlist (Deprecated), Media Tag (Deprecated) API.

API Description
Media Album Provide information about the media album.
Media Bookmark (Deprecated) Provide information about the media bookmark.
Media Face(Deprecated) Provide information about the detected faces from image.
Media Filter Provide functions for creating and destroying media filters.
Provide functions to get filter properties
Media Folder Provide information about folders (e.g. path, name, modification date) stored on the device.
Provide information about the media items present in the folders.
Media Group Provide information about the media group(e.g. media artist, album, genre, year).
Media Information Provide generic information about media content items (i.e. image, audio, video, ebook and others).
Provide details about audio files (e.g. name, genre etc) present in the device.
Provide details about image files (e.g. width, height, orientation etc) present in the device.
Provide details about video files (e.g. width, height, duration etc) present in the device.
Provide details about ebook files (e.g. subject, author etc) present in the device.
Media Playlist (Deprecated) Provide information about the media playlist.
Media Tag (Deprecated) Provide information about media tags.
Provide functions to insert or delete tag from database.
Provide functions to add and remove media item from tags in the database.

Functions

int media_content_connect (void)
 Connects to the media content service.
int media_content_disconnect (void)
 Disconnects from the media content service.
int media_content_scan_file (const char *path)
 Requests to scan a media file.
int media_content_scan_folder (const char *path, bool is_recursive, media_scan_completed_cb callback, void *user_data)
 Requests to scan a media folder, asynchronously.
int media_content_cancel_scan_folder (const char *path)
 Requests to cancel the media folder scanning.
int media_content_add_db_updated_cb (media_content_db_update_cb callback, void *user_data, media_content_noti_h *noti_handle)
 Subscribes notifications of the media DB change.
int media_content_remove_db_updated_cb (media_content_noti_h noti_handle)
 Removes notifications of the media DB change.

Typedefs

typedef void * media_content_noti_h
 The structure type for the Media content noti handle.
typedef void(* media_scan_completed_cb )(media_content_error_e error, void *user_data)
 Called when the media scanning is finished.
typedef void(* media_content_db_update_cb )(media_content_error_e error, int pid, media_content_db_update_item_type_e update_item, media_content_db_update_type_e update_type, media_content_type_e media_type, char *id, char *path, char *mime_type, void *user_data)
 Called when the notification of the media DB change is subscribed.

Defines

#define MEDIA_CONTENT_ERROR_CLASS   TIZEN_ERROR_MEDIA_CONTENT
 Error class.

Define Documentation

#define MEDIA_CONTENT_ERROR_CLASS   TIZEN_ERROR_MEDIA_CONTENT

Error class.

Class for Media Content error

Since :
2.3

Typedef Documentation

typedef void(* media_content_db_update_cb)(media_content_error_e error, int pid, media_content_db_update_item_type_e update_item, media_content_db_update_type_e update_type, media_content_type_e media_type, char *id, char *path, char *mime_type, void *user_data)

Called when the notification of the media DB change is subscribed.

The following error codes can be received:
MEDIA_CONTENT_ERROR_NONE : Success

Since :
2.3
Remarks:
The callback is called in a separate thread(not in the main loop).
Parameters:
[in]errorThe error code
[in]pidThe PID which publishes notification
[in]update_itemThe update item of notification
[in]update_typeThe update type of notification
[in]media_typeThe type of the media content (media_content_type_e)
[in]idThe ID of media or directory, which is updated
[in]pathThe path of the media or directory
[in]mime_typeThe MIME of the media info
[in]user_dataThe user data passed from the foreach function
Precondition:
media_content_add_db_updated_cb().
See also:
media_content_add_db_updated_cb()
typedef void* media_content_noti_h

The structure type for the Media content noti handle.

Since :
3.0
typedef void(* media_scan_completed_cb)(media_content_error_e error, void *user_data)

Called when the media scanning is finished.

The following error codes can be received:
MEDIA_CONTENT_ERROR_NONE : Success
MEDIA_CONTENT_ERROR_INVALID_PARAMETER : Invalid parameter
MEDIA_CONTENT_ERROR_INVALID_OPERATION : Invalid operation
MEDIA_CONTENT_ERROR_PERMISSION_DENIED : Permission denied
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_NETWORK : Network fail

Since :
2.3
Remarks:
The callback is called in a separate thread(not in the main loop).
Parameters:
[in]errorThe error code
[in]user_dataThe user data passed from the foreach function
Precondition:
media_content_scan_folder().
See also:
media_content_scan_folder()

Enumeration Type Documentation

enum media_content_collation_e

Enumeration for collations.

Since :
2.3
Enumerator:
MEDIA_CONTENT_COLLATE_DEFAULT 

Default collation BINARY

MEDIA_CONTENT_COLLATE_NOCASE 

Collation NOCASE, not case sensitive

MEDIA_CONTENT_COLLATE_RTRIM 

Collation RTRIM, trailing space characters are ignored

MEDIA_CONTENT_COLLATE_LOCALIZED 

Collation LOCALIZATION, NOCASE also applied

enum media_content_db_update_item_type_e

Enumeration for media content DB update items.

Since :
2.3
Enumerator:
MEDIA_ITEM_FILE 

File type, an item updated to DB

MEDIA_ITEM_DIRECTORY 

Directory type, an item updated to DB

enum media_content_db_update_type_e

Enumeration for media content DB update types.

Since :
2.3
Enumerator:
MEDIA_CONTENT_INSERT 

Insert, the type of DB update

MEDIA_CONTENT_DELETE 

Delete, The type of DB update

MEDIA_CONTENT_UPDATE 

Update, The type of DB update

enum media_content_error_e

Enumeration for a media content error.

Since :
2.3
Enumerator:
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_FILE_NO_SPACE_ON_DEVICE 

No space left on device

MEDIA_CONTENT_ERROR_PERMISSION_DENIED 

Permission denied

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_UNSUPPORTED_CONTENT 

Unsupported Content

MEDIA_CONTENT_ERROR_NOT_SUPPORTED 

Not supported

enum media_content_order_e

Enumeration for ordering.

Since :
2.3
Enumerator:
MEDIA_CONTENT_ORDER_ASC 

Ascending order

MEDIA_CONTENT_ORDER_DESC 

Descending order

MEDIA_CONTENT_ORDER_OTHER 

order by order key

enum media_content_type_e

Enumeration for the media file format.

The content type is determined based on the mime type.
This type can also be used in the condition of the media filter.

Since :
2.3
Remarks:
Since 4.0, MEDIA_CONTENT_TYPE_OTHERS is related to the following feature:
http://tizen.org/feature/content.scanning.others
If this feature is not supported on the device, MEDIA_CONTENT_TYPE_OTHERS type file is not scanned.
Enumerator:
MEDIA_CONTENT_TYPE_IMAGE 

The type of an image

MEDIA_CONTENT_TYPE_VIDEO 

The type of a video

MEDIA_CONTENT_TYPE_SOUND 

The type of sound

MEDIA_CONTENT_TYPE_MUSIC 

The type of music

MEDIA_CONTENT_TYPE_OTHERS 

The type of other

MEDIA_CONTENT_TYPE_BOOK 

The type of book (Since 6.5)

enum media_group_e

Enumeration for a media group.

Since :
2.3
Enumerator:
MEDIA_CONTENT_GROUP_DISPLAY_NAME 
Deprecated:
Media group ID for display name. Deprecated since 9.0
MEDIA_CONTENT_GROUP_TYPE 
Deprecated:
Media group ID for a media type. Deprecated since 9.0
MEDIA_CONTENT_GROUP_MIME_TYPE 
Deprecated:
Media group ID for a mime type. Deprecated since 9.0
MEDIA_CONTENT_GROUP_SIZE 
Deprecated:
Media group ID for content size. Deprecated since 9.0
MEDIA_CONTENT_GROUP_ADDED_TIME 
Deprecated:
Media group ID for the added time. Deprecated since 9.0
MEDIA_CONTENT_GROUP_MODIFIED_TIME 
Deprecated:
Media group ID for the modified time. Deprecated since 9.0
MEDIA_CONTENT_GROUP_TITLE 
Deprecated:
Media group ID for a content title. Deprecated since 9.0
MEDIA_CONTENT_GROUP_ARTIST 

Media group ID for an artist

MEDIA_CONTENT_GROUP_ALBUM_ARTIST 

Media group ID for an album artist

MEDIA_CONTENT_GROUP_GENRE 

Media group ID for a genre

MEDIA_CONTENT_GROUP_COMPOSER 
Deprecated:
Media group ID for a composer. Deprecated since 9.0
MEDIA_CONTENT_GROUP_YEAR 

Media group ID for a year

MEDIA_CONTENT_GROUP_RECORDED_DATE 
Deprecated:
Media group ID for the recorded date. Deprecated since 9.0
MEDIA_CONTENT_GROUP_COPYRIGHT 
Deprecated:
Media group ID for the copyright. Deprecated since 9.0
MEDIA_CONTENT_GROUP_TRACK_NUM 
Deprecated:
Media group ID for a track number. Deprecated since 9.0
MEDIA_CONTENT_GROUP_DESCRIPTION 
Deprecated:
Media group ID for a description. Deprecated since 9.0
MEDIA_CONTENT_GROUP_LONGITUDE 
Deprecated:
Media group ID for the longitude. Deprecated since 9.0
MEDIA_CONTENT_GROUP_LATITUDE 
Deprecated:
Media group ID for the latitude. Deprecated since 9.0
MEDIA_CONTENT_GROUP_ALTITUDE 
Deprecated:
Media group ID for the altitude. Deprecated since 9.0
MEDIA_CONTENT_GROUP_RATING 
Deprecated:
Media group ID for a rating. Deprecated since 9.0
MEDIA_CONTENT_GROUP_MAX 
Deprecated:
Invalid media group ID. Deprecated since 9.0

Function Documentation

int media_content_add_db_updated_cb ( media_content_db_update_cb  callback,
void *  user_data,
media_content_noti_h *  noti_handle 
)

Subscribes notifications of the media DB change.

This function subscribes notifications of the media DB change which are published by the media server or other apps.
media_content_db_update_cb() function will be called when notification of the media DB change is subscribed.
Using this function, multiple callback is possible to register in one process.

Since :
3.0
Remarks:
The noti_handle should be released using media_content_remove_db_updated_cb().
If you set the same callback that you previously added, this function returns MEDIA_CONTENT_ERROR_INVALID_OPERATION error.
Parameters:
[in]callbackThe callback to be invoked when the scanning is finished
[in]user_dataThe user data to be passed to the callback function
[out]noti_handleThe handle to db updated notification
Returns:
0 on success, otherwise a negative error value
Return values:
MEDIA_CONTENT_ERROR_NONESuccessful
MEDIA_CONTENT_ERROR_INVALID_PARAMETERInvalid parameter
MEDIA_CONTENT_ERROR_INVALID_OPERATIONInvalid operation
MEDIA_CONTENT_ERROR_OUT_OF_MEMORYOut of memory
See also:
media_content_db_update_cb()
media_content_remove_db_updated_cb()
int media_content_cancel_scan_folder ( const char *  path)

Requests to cancel the media folder scanning.

Since :
2.4
Parameters:
[in]pathThe folder path
Returns:
0 on success, otherwise a negative error value
Return values:
MEDIA_CONTENT_ERROR_NONESuccessful
MEDIA_CONTENT_ERROR_INVALID_PARAMETERInvalid parameter
MEDIA_CONTENT_ERROR_INVALID_OPERATIONInvalid operation
Precondition:
media_content_scan_folder()
int media_content_connect ( void  )

Connects to the media content service.

Any media content related function call should be invoked after this function call.

Since :
2.3
Returns:
0 on success, otherwise a negative error value
Return values:
MEDIA_CONTENT_ERROR_NONESuccessful
MEDIA_CONTENT_ERROR_DB_FAILEDDB operation failed
Postcondition:
media_content_disconnect()
See also:
media_content_disconnect()
int media_content_disconnect ( void  )

Disconnects from the media content service.

This function closes connection to the media content service. Any further media content related operation cannot be performed after this function is called.

Since :
2.3
Returns:
0 on success, otherwise a negative error value
Return values:
MEDIA_CONTENT_ERROR_NONESuccessful
MEDIA_CONTENT_ERROR_DB_FAILEDDB operation failed
Precondition:
media_content_connect()
See also:
media_content_connect()
int media_content_remove_db_updated_cb ( media_content_noti_h  noti_handle)

Removes notifications of the media DB change.

This function unsubscribes notifications of the media DB change which are published by the media server or other apps.

Since :
3.0
Parameters:
[in]noti_handleThe handle to db updated notification
Returns:
0 on success, otherwise a negative error value
Return values:
MEDIA_CONTENT_ERROR_NONESuccessful
MEDIA_CONTENT_ERROR_INVALID_PARAMETERInvalid parameter
Precondition:
media_content_add_db_updated_cb()
See also:
media_content_add_db_updated_cb()
int media_content_scan_file ( const char *  path)

Requests to scan a media file.

This function requests to scan a media file to the media server. If media file is not registered to DB yet, that media file information will be added to the media DB. If it is already registered to the DB, then this tries to refresh information.
If requested file does not exist on file system, information of the media file will be removed from the media DB.
If file information does not exist in DB, this function will be return MEDIA_CONTENT_ERROR_INVALID_PARAMETER.

Since :
2.3
Privilege Level:
public
Privilege:
http://tizen.org/privilege/content.write
http://tizen.org/privilege/mediastorage
http://tizen.org/privilege/externalstorage
Remarks:
You must add privilege http://tizen.org/privilege/content.write. And You add more privilege depending on your choice of contents path.
If you want to access only internal storage by using this function, you should add privilege http://tizen.org/privilege/mediastorage.
Or if you want to access only external storage by using this function, you should add privilege http://tizen.org/privilege/externalstorage.
If you can access both storage, you must add all privilege.
Since 4.0, This function does not allow a symbolic link.
Since 4.0, this function is related to the following feature:
http://tizen.org/feature/content.scanning.others
If this feature is not supported on the device, MEDIA_CONTENT_TYPE_OTHERS type file is not scanned.
Parameters:
[in]pathThe file path
Returns:
0 on success, otherwise a negative error value
Return values:
MEDIA_CONTENT_ERROR_NONESuccessful
MEDIA_CONTENT_ERROR_INVALID_PARAMETERInvalid parameter
MEDIA_CONTENT_ERROR_INVALID_OPERATIONInvalid operation
MEDIA_CONTENT_ERROR_PERMISSION_DENIEDPermission denied
MEDIA_CONTENT_ERROR_DB_FAILEDDB Operation failed
MEDIA_CONTENT_ERROR_DB_BUSYDB Operation busy
MEDIA_CONTENT_ERROR_NOT_SUPPORTEDNot supported
Precondition:
This function requires opened connection to content service by media_content_connect().
See also:
media_content_connect()
int media_content_scan_folder ( const char *  path,
bool  is_recursive,
media_scan_completed_cb  callback,
void *  user_data 
)

Requests to scan a media folder, asynchronously.

This function requests to scan a media folder to the media server with given completed callback function. media_scan_completed_cb() function will be called when the scanning is finished. The sub folders are also scanned, if there are sub folders in that folder.
If any folder must not be scanned, a blank file ".scan_ignore" has to be created in that folder. After adding or removing a folder from the filesystem, call this function on its source location (this will add or remove an entry from the database).
After moving or renaming a folder in the filesystem, call this function on its source location (this will remove an entry from the database) and call this function again on its destination location (this will add a new entry to the database).
Alternatively, you can call this function on any parent of source location and on any parent of destination location.
You can also call the function once, on a folder which is a parent of both source and destination.

Since :
2.3
Privilege Level:
public
Privilege:
http://tizen.org/privilege/content.write
http://tizen.org/privilege/mediastorage
http://tizen.org/privilege/externalstorage
Remarks:
You must add privilege http://tizen.org/privilege/content.write. And You add more privilege depending on your choice of contents path.
If you want to access only internal storage by using this function, you should add privilege http://tizen.org/privilege/mediastorage.
Or if you want to access only external storage by using this function, you should add privilege http://tizen.org/privilege/externalstorage.
If you can access both storage, you must add all privilege.
Since 4.0, This function does not allow a symbolic link.
Parameters:
[in]pathThe folder path
[in]is_recursiveSet true to scan recursively subdirectories, otherwise false to scan only the current directory
[in]callbackThe callback to be invoked when the scanning is finished
[in]user_dataThe user data to be passed to the callback function
Returns:
0 on success, otherwise a negative error value
Return values:
MEDIA_CONTENT_ERROR_NONESuccessful
MEDIA_CONTENT_ERROR_INVALID_PARAMETERInvalid parameter
MEDIA_CONTENT_ERROR_INVALID_OPERATIONInvalid operation
MEDIA_CONTENT_ERROR_PERMISSION_DENIEDPermission denied
MEDIA_CONTENT_ERROR_OUT_OF_MEMORYOut of memory
MEDIA_CONTENT_ERROR_DB_FAILEDDB Operation failed
MEDIA_CONTENT_ERROR_DB_BUSYDB Operation busy
MEDIA_CONTENT_ERROR_NETWORKNetwork fail
Precondition:
This function requires opened connection to content service by media_content_connect().
See also:
media_scan_completed_cb()
media_content_connect()