Tizen Native API  5.5
Bluetooth AVRCP Target

Bluetooth AVRCP(Audio/Video Remote Control Profile) Target API provides functions for notifying the change of target device to the control device.

Required Header

#include <bluetooth.h>

Overview

This API supports the Target role in AVRCP spec. The Target is the device whose characteristics are being altered. In a "walkman" type media player scenario, the Control device may be a headset that allows tracks to be skipped and the Target device would be the actual medial player.

Related Features

This API is related with the following features:

It is recommended to design feature related codes in your application for reliability.

You can check if a device supports the related features for this API by using System Information, thereby controlling the procedure of your application.

To ensure your application is only running on the device with specific features, please define the features in your manifest file using the manifest editor in the SDK.

More details on featuring your application can be found from Feature Element.

Functions

int bt_avrcp_target_initialize (bt_avrcp_target_connection_state_changed_cb callback, void *user_data)
 Initializes the Bluetooth AVRCP (Audio/Video Remote Control Profile) target service.
int bt_avrcp_target_deinitialize (void)
 Deinitializes the Bluetooth AVRCP (Audio/Video Remote Control Profile) target service.
int bt_avrcp_target_notify_equalizer_state (bt_avrcp_equalizer_state_e state)
 Notifies the equalizer state to the remote device.
int bt_avrcp_target_notify_repeat_mode (bt_avrcp_repeat_mode_e mode)
 Notifies the repeat mode to the remote device.
int bt_avrcp_target_notify_shuffle_mode (bt_avrcp_shuffle_mode_e mode)
 Notifies the shuffle mode to the remote device.
int bt_avrcp_target_notify_scan_mode (bt_avrcp_scan_mode_e mode)
 Notifies the scan mode to the remote device.
int bt_avrcp_target_notify_player_state (bt_avrcp_player_state_e state)
 Notifies the player state to the remote device.
int bt_avrcp_target_notify_position (unsigned int position)
 Notifies the current position of song to the remote device.
int bt_avrcp_target_notify_track (const char *title, const char *artist, const char *album, const char *genre, unsigned int track_num, unsigned int total_tracks, unsigned int duration)
 Notifies the track to the remote device.

Function Documentation

Deinitializes the Bluetooth AVRCP (Audio/Video Remote Control Profile) target service.

Since :
3.0
Returns:
0 on success, otherwise a negative error value.
Return values:
BT_ERROR_NONESuccessful
BT_ERROR_NOT_INITIALIZEDNot initialized
BT_ERROR_NOT_SUPPORTEDNot supported
Precondition:
The Bluetooth audio service must be initialized with bt_avrcp_target_initialize().
See also:
bt_avrcp_target_initialize()

Initializes the Bluetooth AVRCP (Audio/Video Remote Control Profile) target service.

Since :
3.0
Remarks:
This function must be called before any other AVRCP target functions are called.
You must free all resources of the this service by calling bt_avrcp_target_deinitialize()
if Bluetooth AVRCP service is no longer needed.
Parameters:
[in]callbackThe callback function called when the connection state is changed
[in]user_dataThe user data to be passed to the callback function
Returns:
0 on success, otherwise a negative error value.
Return values:
BT_ERROR_NONESuccessful
BT_ERROR_NOT_INITIALIZEDNot initialized
BT_ERROR_INVALID_PARAMETERInvalid parameter
BT_ERROR_OPERATION_FAILEDOperation failed
BT_ERROR_NOT_SUPPORTEDNot supported
Precondition:
The Bluetooth service must be initialized with bt_initialize().
See also:
bt_initialize()
bt_avrcp_target_deinitialize()

Notifies the equalizer state to the remote device.

Since :
3.0
Privilege Level:
public
Privilege:
http://tizen.org/privilege/bluetooth
Parameters:
[in]stateThe state of equalizer
Returns:
0 on success, otherwise a negative error value.
Return values:
BT_ERROR_NONESuccessful
BT_ERROR_NOT_INITIALIZEDNot initialized
BT_ERROR_INVALID_PARAMETERInvalid parameter
BT_ERROR_NOT_ENABLEDNot enabled
BT_ERROR_OPERATION_FAILEDOperation failed
BT_ERROR_REMOTE_DEVICE_NOT_CONNECTEDRemote device is not connected
BT_ERROR_PERMISSION_DENIEDPermission denied
BT_ERROR_NOT_SUPPORTEDNot supported
Precondition:
The remote device must be connected.
See also:
bt_avrcp_target_connection_state_changed_cb()
bt_avrcp_target_initialize()

Notifies the player state to the remote device.

Since :
3.0
Privilege Level:
public
Privilege:
http://tizen.org/privilege/bluetooth
Parameters:
[in]stateThe player state
Returns:
0 on success, otherwise a negative error value.
Return values:
BT_ERROR_NONESuccessful
BT_ERROR_NOT_INITIALIZEDNot initialized
BT_ERROR_INVALID_PARAMETERInvalid parameter
BT_ERROR_NOT_ENABLEDNot enabled
BT_ERROR_OPERATION_FAILEDOperation failed
BT_ERROR_REMOTE_DEVICE_NOT_CONNECTEDRemote device is not connected
BT_ERROR_PERMISSION_DENIEDPermission denied
BT_ERROR_NOT_SUPPORTEDNot supported
Precondition:
The remote device must be connected.
See also:
bt_avrcp_target_connection_state_changed_cb()
bt_avrcp_target_initialize()
int bt_avrcp_target_notify_position ( unsigned int  position)

Notifies the current position of song to the remote device.

Since :
3.0
Privilege Level:
public
Privilege:
http://tizen.org/privilege/bluetooth
Parameters:
[in]positionThe current position in milliseconds
Returns:
0 on success, otherwise a negative error value.
Return values:
BT_ERROR_NONESuccessful
BT_ERROR_NOT_INITIALIZEDNot initialized
BT_ERROR_INVALID_PARAMETERInvalid parameter
BT_ERROR_NOT_ENABLEDNot enabled
BT_ERROR_OPERATION_FAILEDOperation failed
BT_ERROR_REMOTE_DEVICE_NOT_CONNECTEDRemote device is not connected
BT_ERROR_PERMISSION_DENIEDPermission denied
BT_ERROR_NOT_SUPPORTEDNot supported
Precondition:
The remote device must be connected.
See also:
bt_avrcp_target_connection_state_changed_cb()
bt_avrcp_target_initialize()

Notifies the repeat mode to the remote device.

Since :
3.0
Privilege Level:
public
Privilege:
http://tizen.org/privilege/bluetooth
Parameters:
[in]modeThe repeat mode
Returns:
0 on success, otherwise a negative error value.
Return values:
BT_ERROR_NONESuccessful
BT_ERROR_NOT_INITIALIZEDNot initialized
BT_ERROR_INVALID_PARAMETERInvalid parameter
BT_ERROR_NOT_ENABLEDNot enabled
BT_ERROR_OPERATION_FAILEDOperation failed
BT_ERROR_REMOTE_DEVICE_NOT_CONNECTEDRemote device is not connected
BT_ERROR_PERMISSION_DENIEDPermission denied
BT_ERROR_NOT_SUPPORTEDNot supported
Precondition:
The remote device must be connected.
See also:
bt_avrcp_target_connection_state_changed_cb()
bt_avrcp_target_initialize()

Notifies the scan mode to the remote device.

Since :
3.0
Privilege Level:
public
Privilege:
http://tizen.org/privilege/bluetooth
Parameters:
[in]modeThe scan mode
Returns:
0 on success, otherwise a negative error value.
Return values:
BT_ERROR_NONESuccessful
BT_ERROR_NOT_INITIALIZEDNot initialized
BT_ERROR_INVALID_PARAMETERInvalid parameter
BT_ERROR_NOT_ENABLEDNot enabled
BT_ERROR_OPERATION_FAILEDOperation failed
BT_ERROR_REMOTE_DEVICE_NOT_CONNECTEDRemote device is not connected
BT_ERROR_PERMISSION_DENIEDPermission denied
BT_ERROR_NOT_SUPPORTEDNot supported
Precondition:
The remote device must be connected.
See also:
bt_avrcp_target_connection_state_changed_cb()
bt_avrcp_target_initialize()

Notifies the shuffle mode to the remote device.

Since :
3.0
Privilege Level:
public
Privilege:
http://tizen.org/privilege/bluetooth
Parameters:
[in]modeThe repeat mode
Returns:
0 on success, otherwise a negative error value.
Return values:
BT_ERROR_NONESuccessful
BT_ERROR_NOT_INITIALIZEDNot initialized
BT_ERROR_INVALID_PARAMETERInvalid parameter
BT_ERROR_NOT_ENABLEDNot enabled
BT_ERROR_OPERATION_FAILEDOperation failed
BT_ERROR_REMOTE_DEVICE_NOT_CONNECTEDRemote device is not connected
BT_ERROR_PERMISSION_DENIEDPermission denied
BT_ERROR_NOT_SUPPORTEDNot supported
Precondition:
The remote device must be connected.
See also:
bt_avrcp_target_connection_state_changed_cb()
bt_avrcp_target_initialize()
int bt_avrcp_target_notify_track ( const char *  title,
const char *  artist,
const char *  album,
const char *  genre,
unsigned int  track_num,
unsigned int  total_tracks,
unsigned int  duration 
)

Notifies the track to the remote device.

Since :
3.0
Privilege Level:
public
Privilege:
http://tizen.org/privilege/bluetooth
Parameters:
[in]titleThe title of track
[in]artistThe artist of track
[in]albumThe album of track
[in]genreThe genre of track
[in]track_numThe track number
[in]total_tracksThe number of all tracks
[in]durationThe duration of track in milliseconds
Returns:
0 on success, otherwise a negative error value.
Return values:
BT_ERROR_NONESuccessful
BT_ERROR_NOT_INITIALIZEDNot initialized
BT_ERROR_INVALID_PARAMETERInvalid parameter
BT_ERROR_NOT_ENABLEDNot enabled
BT_ERROR_OPERATION_FAILEDOperation failed
BT_ERROR_REMOTE_DEVICE_NOT_CONNECTEDRemote device is not connected
BT_ERROR_PERMISSION_DENIEDPermission denied
BT_ERROR_NOT_SUPPORTEDNot supported
Precondition:
The remote device must be connected.
See also:
bt_avrcp_target_connection_state_changed_cb()
bt_avrcp_target_initialize()