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:

http://tizen.org/feature/network.bluetooth.audio.media

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

int bt_avrcp_target_deinitialize ( void )

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

Since :: 2.4

Returns:: 0 on success, otherwise a negative error value

Return values:

BT_ERROR_NONE	Successful
BT_ERROR_NOT_INITIALIZED	Not initialized
BT_ERROR_NOT_SUPPORTED	Not supported

Precondition:: The Bluetooth audio service must be initialized with bt_avrcp_target_initialize().

See also:: bt_avrcp_target_initialize()

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.

Since :: 2.4

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]	callback	The callback function called when the connection state is changed
[in]	user_data	The user data to be passed to the callback function

Returns:: 0 on success, otherwise a negative error value

Return values:

BT_ERROR_NONE	Successful
BT_ERROR_NOT_INITIALIZED	Not initialized
BT_ERROR_INVALID_PARAMETER	Invalid parameter
BT_ERROR_OPERATION_FAILED	Operation failed
BT_ERROR_NOT_SUPPORTED	Not supported

Precondition:: The Bluetooth service must be initialized with bt_initialize().

See also:: bt_initialize(); bt_avrcp_target_deinitialize()

int bt_avrcp_target_notify_equalizer_state ( bt_avrcp_equalizer_state_e state )

Notifies the equalizer state to the remote device.

Since :: 2.4

Privilege Level:: public

Privilege:: http://tizen.org/privilege/bluetooth

Parameters:

[in] state The state of equalizer

Returns:: 0 on success, otherwise a negative error value

Return values:

BT_ERROR_NONE	Successful
BT_ERROR_NOT_INITIALIZED	Not initialized
BT_ERROR_INVALID_PARAMETER	Invalid parameter
BT_ERROR_NOT_ENABLED	Not enabled
BT_ERROR_OPERATION_FAILED	Operation failed
BT_ERROR_REMOTE_DEVICE_NOT_CONNECTED	Remote device is not connected
BT_ERROR_PERMISSION_DENIED	Permission denied
BT_ERROR_NOT_SUPPORTED	Not 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_player_state ( bt_avrcp_player_state_e state )

Notifies the player state to the remote device.

Since :: 2.4

Privilege Level:: public

Privilege:: http://tizen.org/privilege/bluetooth

Parameters:

[in] state The player state

Returns:: 0 on success, otherwise a negative error value

Return values:

BT_ERROR_NONE	Successful
BT_ERROR_NOT_INITIALIZED	Not initialized
BT_ERROR_INVALID_PARAMETER	Invalid parameter
BT_ERROR_NOT_ENABLED	Not enabled
BT_ERROR_OPERATION_FAILED	Operation failed
BT_ERROR_REMOTE_DEVICE_NOT_CONNECTED	Remote device is not connected
BT_ERROR_PERMISSION_DENIED	Permission denied
BT_ERROR_NOT_SUPPORTED	Not 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 :: 2.4

Privilege Level:: public

Privilege:: http://tizen.org/privilege/bluetooth

Parameters:

[in] position The current position in milliseconds

Returns:: 0 on success, otherwise a negative error value

Return values:

BT_ERROR_NONE	Successful
BT_ERROR_NOT_INITIALIZED	Not initialized
BT_ERROR_INVALID_PARAMETER	Invalid parameter
BT_ERROR_NOT_ENABLED	Not enabled
BT_ERROR_OPERATION_FAILED	Operation failed
BT_ERROR_REMOTE_DEVICE_NOT_CONNECTED	Remote device is not connected
BT_ERROR_PERMISSION_DENIED	Permission denied
BT_ERROR_NOT_SUPPORTED	Not 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_repeat_mode ( bt_avrcp_repeat_mode_e mode )

Notifies the repeat mode to the remote device.

Since :: 2.4

Privilege Level:: public

Privilege:: http://tizen.org/privilege/bluetooth

Parameters:

[in] mode The repeat mode

Returns:: 0 on success, otherwise a negative error value

Return values:

BT_ERROR_NONE	Successful
BT_ERROR_NOT_INITIALIZED	Not initialized
BT_ERROR_INVALID_PARAMETER	Invalid parameter
BT_ERROR_NOT_ENABLED	Not enabled
BT_ERROR_OPERATION_FAILED	Operation failed
BT_ERROR_REMOTE_DEVICE_NOT_CONNECTED	Remote device is not connected
BT_ERROR_PERMISSION_DENIED	Permission denied
BT_ERROR_NOT_SUPPORTED	Not 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_scan_mode ( bt_avrcp_scan_mode_e mode )

Notifies the scan mode to the remote device.

Since :: 2.4

Privilege Level:: public

Privilege:: http://tizen.org/privilege/bluetooth

Parameters:

[in] mode The scan mode

Returns:: 0 on success, otherwise a negative error value

Return values:

BT_ERROR_NONE	Successful
BT_ERROR_NOT_INITIALIZED	Not initialized
BT_ERROR_INVALID_PARAMETER	Invalid parameter
BT_ERROR_NOT_ENABLED	Not enabled
BT_ERROR_OPERATION_FAILED	Operation failed
BT_ERROR_REMOTE_DEVICE_NOT_CONNECTED	Remote device is not connected
BT_ERROR_PERMISSION_DENIED	Permission denied
BT_ERROR_NOT_SUPPORTED	Not 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_shuffle_mode ( bt_avrcp_shuffle_mode_e mode )

Notifies the shuffle mode to the remote device.

Since :: 2.4

Privilege Level:: public

Privilege:: http://tizen.org/privilege/bluetooth

Parameters:

[in] mode The repeat mode

Returns:: 0 on success, otherwise a negative error value

Return values:

BT_ERROR_NONE	Successful
BT_ERROR_NOT_INITIALIZED	Not initialized
BT_ERROR_INVALID_PARAMETER	Invalid parameter
BT_ERROR_NOT_ENABLED	Not enabled
BT_ERROR_OPERATION_FAILED	Operation failed
BT_ERROR_REMOTE_DEVICE_NOT_CONNECTED	Remote device is not connected
BT_ERROR_PERMISSION_DENIED	Permission denied
BT_ERROR_NOT_SUPPORTED	Not 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 :: 2.4

Privilege Level:: public

Privilege:: http://tizen.org/privilege/bluetooth

Parameters:

[in]	title	The title of track
[in]	artist	The artist of track
[in]	album	The album of track
[in]	genre	The genre of track
[in]	track_num	The track number
[in]	total_tracks	The number of all tracks
[in]	duration	The duration of track in milliseconds

Returns:: 0 on success, otherwise a negative error value

Return values:

BT_ERROR_NONE	Successful
BT_ERROR_NOT_INITIALIZED	Not initialized
BT_ERROR_INVALID_PARAMETER	Invalid parameter
BT_ERROR_NOT_ENABLED	Not enabled
BT_ERROR_OPERATION_FAILED	Operation failed
BT_ERROR_REMOTE_DEVICE_NOT_CONNECTED	Remote device is not connected
BT_ERROR_PERMISSION_DENIED	Permission denied
BT_ERROR_NOT_SUPPORTED	Not supported

Precondition:: The remote device must be connected.

See also:: bt_avrcp_target_connection_state_changed_cb(); bt_avrcp_target_initialize()

Required Header

Overview

Related Features

Functions

Function Documentation