Media proxy module. More...

Data Structures
struct	mpl_cmd
	Media player command. More...

struct	mpl_cmd_ntf
	Media command notification. More...

struct	mpl_sci
	Search control item. More...

struct	mpl_search
	Search. More...

struct	media_proxy_ctrl_cbs
	Callbacks to a controller, from the media proxy. More...

struct	media_proxy_pl_calls
	Available calls in a player, that the media proxy can call. More...

Macros
#define	MEDIA_PROXY_OPCODES_SUPPORTED_LEN 4
	Media player supported opcodes length.

Functions
int	media_proxy_ctrl_register (struct media_proxy_ctrl_cbs *ctrl_cbs)
	Register a controller with the media_proxy.

int	media_proxy_ctrl_discover_player (struct bt_conn *conn)
	Discover a remote media player.

int	media_proxy_ctrl_get_player_name (struct media_player *player)
	Read Media Player Name.

int	media_proxy_ctrl_get_icon_id (struct media_player *player)
	Read Icon Object ID.

int	media_proxy_ctrl_get_icon_url (struct media_player *player)
	Read Icon URL.

int	media_proxy_ctrl_get_track_title (struct media_player *player)
	Read Track Title.

int	media_proxy_ctrl_get_track_duration (struct media_player *player)
	Read Track Duration.

int	media_proxy_ctrl_get_track_position (struct media_player *player)
	Read Track Position.

int	media_proxy_ctrl_set_track_position (struct media_player *player, int32_t position)
	Set Track Position.

int	media_proxy_ctrl_get_playback_speed (struct media_player *player)
	Get Playback Speed.

int	media_proxy_ctrl_set_playback_speed (struct media_player *player, int8_t speed)
	Set Playback Speed.

int	media_proxy_ctrl_get_seeking_speed (struct media_player *player)
	Get Seeking Speed.

int	media_proxy_ctrl_get_track_segments_id (struct media_player *player)
	Read Current Track Segments Object ID.

int	media_proxy_ctrl_get_current_track_id (struct media_player *player)
	Read Current Track Object ID.

int	media_proxy_ctrl_set_current_track_id (struct media_player *player, uint64_t id)
	Set Current Track Object ID.

int	media_proxy_ctrl_get_next_track_id (struct media_player *player)
	Read Next Track Object ID.

int	media_proxy_ctrl_set_next_track_id (struct media_player *player, uint64_t id)
	Set Next Track Object ID.

int	media_proxy_ctrl_get_parent_group_id (struct media_player *player)
	Read Parent Group Object ID.

int	media_proxy_ctrl_get_current_group_id (struct media_player *player)
	Read Current Group Object ID.

int	media_proxy_ctrl_set_current_group_id (struct media_player *player, uint64_t id)
	Set Current Group Object ID.

int	media_proxy_ctrl_get_playing_order (struct media_player *player)
	Read Playing Order.

int	media_proxy_ctrl_set_playing_order (struct media_player *player, uint8_t order)
	Set Playing Order.

int	media_proxy_ctrl_get_playing_orders_supported (struct media_player *player)
	Read Playing Orders Supported.

int	media_proxy_ctrl_get_media_state (struct media_player *player)
	Read Media State.

int	media_proxy_ctrl_send_command (struct media_player player, const struct mpl_cmd command)
	Send Command.

int	media_proxy_ctrl_get_commands_supported (struct media_player *player)
	Read Commands Supported.

int	media_proxy_ctrl_send_search (struct media_player player, const struct mpl_search search)
	Set Search.

int	media_proxy_ctrl_get_search_results_id (struct media_player *player)
	Read Search Results Object ID.

uint8_t	media_proxy_ctrl_get_content_ctrl_id (struct media_player *player)
	Read Content Control ID.

int	media_proxy_pl_register (struct media_proxy_pl_calls *pl_calls)
	Register a player with the media proxy.

int	media_proxy_pl_init (void)
	Initialize player.

struct bt_ots *	bt_mcs_get_ots (void)
	Get the pointer of the Object Transfer Service used by the Media Control Service.

void	media_proxy_pl_name_cb (const char *name)
	Player name changed callback.

void	media_proxy_pl_icon_url_cb (const char *url)
	Player icon URL changed callback.

void	media_proxy_pl_track_changed_cb (void)
	Track changed callback.

void	media_proxy_pl_track_title_cb (char *title)
	Track title callback.

void	media_proxy_pl_track_duration_cb (int32_t duration)
	Track duration callback.

void	media_proxy_pl_track_position_cb (int32_t position)
	Track position callback.

void	media_proxy_pl_playback_speed_cb (int8_t speed)
	Playback speed callback.

void	media_proxy_pl_seeking_speed_cb (int8_t speed)
	Seeking speed callback.

void	media_proxy_pl_current_track_id_cb (uint64_t id)
	Current track object ID callback.

void	media_proxy_pl_next_track_id_cb (uint64_t id)
	Next track object ID callback.

void	media_proxy_pl_parent_group_id_cb (uint64_t id)
	Parent group object ID callback.

void	media_proxy_pl_current_group_id_cb (uint64_t id)
	Current group object ID callback.

void	media_proxy_pl_playing_order_cb (uint8_t order)
	Playing order callback.

void	media_proxy_pl_media_state_cb (uint8_t state)
	Media state callback.

void	media_proxy_pl_command_cb (const struct mpl_cmd_ntf *cmd_ntf)
	Command callback.

void	media_proxy_pl_commands_supported_cb (uint32_t opcodes)
	Commands supported callback.

void	media_proxy_pl_search_cb (uint8_t result_code)
	Search callback.

void	media_proxy_pl_search_results_id_cb (uint64_t id)
	Search Results object ID callback.

Playback speed parameters
All values from -128 to 127 allowed, only some defined
#define	MEDIA_PROXY_PLAYBACK_SPEED_MIN -128
	Minimum playback speed, resulting in 25 % speed.

#define	MEDIA_PROXY_PLAYBACK_SPEED_QUARTER -128
	Quarter playback speed, resulting in 25 % speed.

#define	MEDIA_PROXY_PLAYBACK_SPEED_HALF -64
	Half playback speed, resulting in 50 % speed.

#define	MEDIA_PROXY_PLAYBACK_SPEED_UNITY 0
	Unity playback speed, resulting in 100 % speed.

#define	MEDIA_PROXY_PLAYBACK_SPEED_DOUBLE 64
	Double playback speed, resulting in 200 % speed.

#define	MEDIA_PROXY_PLAYBACK_SPEED_MAX 127
	Max playback speed, resulting in 395.7 % speed (nearly 400 %)

Seeking speed factors
The allowed values for seeking speed are the range -64 to -4 (endpoints included), the value 0, and the range 4 to 64 (endpoints included).
#define	MEDIA_PROXY_SEEKING_SPEED_FACTOR_MAX 64
	Maximum seeking speed - Can be negated.

#define	MEDIA_PROXY_SEEKING_SPEED_FACTOR_MIN 4
	Minimum seeking speed - Can be negated.

#define	MEDIA_PROXY_SEEKING_SPEED_FACTOR_ZERO 0
	No seeking.

Playing orders
#define	MEDIA_PROXY_PLAYING_ORDER_SINGLE_ONCE 0x01
	A single track is played once; there is no next track.

#define	MEDIA_PROXY_PLAYING_ORDER_SINGLE_REPEAT 0x02
	A single track is played repeatedly; the next track is the current track.

#define	MEDIA_PROXY_PLAYING_ORDER_INORDER_ONCE 0x03
	The tracks within a group are played once in track order.

#define	MEDIA_PROXY_PLAYING_ORDER_INORDER_REPEAT 0x04
	The tracks within a group are played in track order repeatedly.

#define	MEDIA_PROXY_PLAYING_ORDER_OLDEST_ONCE 0x05
	The tracks within a group are played once only from the oldest first.

#define	MEDIA_PROXY_PLAYING_ORDER_OLDEST_REPEAT 0x06
	The tracks within a group are played from the oldest first repeatedly.

#define	MEDIA_PROXY_PLAYING_ORDER_NEWEST_ONCE 0x07
	The tracks within a group are played once only from the newest first.

#define	MEDIA_PROXY_PLAYING_ORDER_NEWEST_REPEAT 0x08
	The tracks within a group are played from the newest first repeatedly.

#define	MEDIA_PROXY_PLAYING_ORDER_SHUFFLE_ONCE 0x09
	The tracks within a group are played in random order once.

#define	MEDIA_PROXY_PLAYING_ORDER_SHUFFLE_REPEAT 0x0a
	The tracks within a group are played in random order repeatedly.

Playing orders supported
A bitmap, in the same order as the playing orders above. Note that playing order 1 corresponds to bit 0, and so on.
#define	MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_SINGLE_ONCE BIT(0)
	A single track is played once; there is no next track.

#define	MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_SINGLE_REPEAT BIT(1)
	A single track is played repeatedly; the next track is the current track.

#define	MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_INORDER_ONCE BIT(2)
	The tracks within a group are played once in track order.

#define	MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_INORDER_REPEAT BIT(3)
	The tracks within a group are played in track order repeatedly.

#define	MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_OLDEST_ONCE BIT(4)
	The tracks within a group are played once only from the oldest first.

#define	MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_OLDEST_REPEAT BIT(5)
	The tracks within a group are played from the oldest first repeatedly.

#define	MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_NEWEST_ONCE BIT(6)
	The tracks within a group are played once only from the newest first.

#define	MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_NEWEST_REPEAT BIT(7)
	The tracks within a group are played from the newest first repeatedly.

#define	MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_SHUFFLE_ONCE BIT(8)
	The tracks within a group are played in random order once.

#define	MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_SHUFFLE_REPEAT BIT(9)
	The tracks within a group are played in random order repeatedly.

Media player states
#define	MEDIA_PROXY_STATE_INACTIVE 0x00
	The current track is invalid, and no track has been selected.

#define	MEDIA_PROXY_STATE_PLAYING 0x01
	The media player is playing the current track.

#define	MEDIA_PROXY_STATE_PAUSED 0x02
	The current track is paused.

#define	MEDIA_PROXY_STATE_SEEKING 0x03
	The current track is fast forwarding or fast rewinding.

#define	MEDIA_PROXY_STATE_LAST 0x04
	Used internally as the last state value.

Media player command opcodes
#define	MEDIA_PROXY_OP_PLAY 0x01
	Start playing the current track.

#define	MEDIA_PROXY_OP_PAUSE 0x02
	Pause playing the current track.

#define	MEDIA_PROXY_OP_FAST_REWIND 0x03
	Fast rewind the current track.

#define	MEDIA_PROXY_OP_FAST_FORWARD 0x04
	Fast forward the current track.

#define	MEDIA_PROXY_OP_STOP 0x05
	Stop current activity and return to the paused state and set the current track position to the start of the current track.

#define	MEDIA_PROXY_OP_MOVE_RELATIVE 0x10
	Set a new current track position relative to the current track position.

#define	MEDIA_PROXY_OP_PREV_SEGMENT 0x20
	Set the current track position to the starting position of the previous segment of the current track.

#define	MEDIA_PROXY_OP_NEXT_SEGMENT 0x21
	Set the current track position to the starting position of the next segment of the current track.

#define	MEDIA_PROXY_OP_FIRST_SEGMENT 0x22
	Set the current track position to the starting position of the first segment of the current track.

#define	MEDIA_PROXY_OP_LAST_SEGMENT 0x23
	Set the current track position to the starting position of the last segment of the current track.

#define	MEDIA_PROXY_OP_GOTO_SEGMENT 0x24
	Set the current track position to the starting position of the nth segment of the current track.

#define	MEDIA_PROXY_OP_PREV_TRACK 0x30
	Set the current track to the previous track based on the playing order.

#define	MEDIA_PROXY_OP_NEXT_TRACK 0x31
	Set the current track to the next track based on the playing order.

#define	MEDIA_PROXY_OP_FIRST_TRACK 0x32
	Set the current track to the first track based on the playing order.

#define	MEDIA_PROXY_OP_LAST_TRACK 0x33
	Set the current track to the last track based on the playing order.

#define	MEDIA_PROXY_OP_GOTO_TRACK 0x34
	Set the current track to the nth track based on the playing order.

#define	MEDIA_PROXY_OP_PREV_GROUP 0x40
	Set the current group to the previous group in the sequence of groups.

#define	MEDIA_PROXY_OP_NEXT_GROUP 0x41
	Set the current group to the next group in the sequence of groups.

#define	MEDIA_PROXY_OP_FIRST_GROUP 0x42
	Set the current group to the first group in the sequence of groups.

#define	MEDIA_PROXY_OP_LAST_GROUP 0x43
	Set the current group to the last group in the sequence of groups.

#define	MEDIA_PROXY_OP_GOTO_GROUP 0x44
	Set the current group to the nth group in the sequence of groups.

#define	MEDIA_PROXY_OP_SUP_PLAY BIT(0)
	Media player supported command opcodes.

#define	MEDIA_PROXY_OP_SUP_PAUSE BIT(1)
	Support the Pause opcode.

#define	MEDIA_PROXY_OP_SUP_FAST_REWIND BIT(2)
	Support the Fast Rewind opcode.

#define	MEDIA_PROXY_OP_SUP_FAST_FORWARD BIT(3)
	Support the Fast Forward opcode.

#define	MEDIA_PROXY_OP_SUP_STOP BIT(4)
	Support the Stop opcode.

#define	MEDIA_PROXY_OP_SUP_MOVE_RELATIVE BIT(5)
	Support the Move Relative opcode.

#define	MEDIA_PROXY_OP_SUP_PREV_SEGMENT BIT(6)
	Support the Previous Segment opcode.

#define	MEDIA_PROXY_OP_SUP_NEXT_SEGMENT BIT(7)
	Support the Next Segment opcode.

#define	MEDIA_PROXY_OP_SUP_FIRST_SEGMENT BIT(8)
	Support the First Segment opcode.

#define	MEDIA_PROXY_OP_SUP_LAST_SEGMENT BIT(9)
	Support the Last Segment opcode.

#define	MEDIA_PROXY_OP_SUP_GOTO_SEGMENT BIT(10)
	Support the Goto Segment opcode.

#define	MEDIA_PROXY_OP_SUP_PREV_TRACK BIT(11)
	Support the Previous Track opcode.

#define	MEDIA_PROXY_OP_SUP_NEXT_TRACK BIT(12)
	Support the Next Track opcode.

#define	MEDIA_PROXY_OP_SUP_FIRST_TRACK BIT(13)
	Support the First Track opcode.

#define	MEDIA_PROXY_OP_SUP_LAST_TRACK BIT(14)
	Support the Last Track opcode.

#define	MEDIA_PROXY_OP_SUP_GOTO_TRACK BIT(15)
	Support the Goto Track opcode.

#define	MEDIA_PROXY_OP_SUP_PREV_GROUP BIT(16)
	Support the Previous Group opcode.

#define	MEDIA_PROXY_OP_SUP_NEXT_GROUP BIT(17)
	Support the Next Group opcode.

#define	MEDIA_PROXY_OP_SUP_FIRST_GROUP BIT(18)
	Support the First Group opcode.

#define	MEDIA_PROXY_OP_SUP_LAST_GROUP BIT(19)
	Support the Last Group opcode.

#define	MEDIA_PROXY_OP_SUP_GOTO_GROUP BIT(20)
	Support the Goto Group opcode.

Media player command result codes
#define	MEDIA_PROXY_CMD_SUCCESS 0x01
	Action requested by the opcode write was completed successfully.

#define	MEDIA_PROXY_CMD_NOT_SUPPORTED 0x02
	An invalid or unsupported opcode was used for the Media Control Point write.

#define	MEDIA_PROXY_CMD_PLAYER_INACTIVE 0x03
	The Media Player State characteristic value is Inactive when the opcode is received or the result of the requested action of the opcode results in the Media Player State characteristic being set to Inactive.

#define	MEDIA_PROXY_CMD_CANNOT_BE_COMPLETED 0x04
	The requested action of any Media Control Point write cannot be completed successfully because of a condition within the player.

Search operation type values
#define	MEDIA_PROXY_SEARCH_TYPE_TRACK_NAME 0x01
	Search for Track Name.

#define	MEDIA_PROXY_SEARCH_TYPE_ARTIST_NAME 0x02
	Search for Artist Name.

#define	MEDIA_PROXY_SEARCH_TYPE_ALBUM_NAME 0x03
	Search for Album Name.

#define	MEDIA_PROXY_SEARCH_TYPE_GROUP_NAME 0x04
	Search for Group Name.

#define	MEDIA_PROXY_SEARCH_TYPE_EARLIEST_YEAR 0x05
	Search for Earliest Year.

#define	MEDIA_PROXY_SEARCH_TYPE_LATEST_YEAR 0x06
	Search for Latest Year.

#define	MEDIA_PROXY_SEARCH_TYPE_GENRE 0x07
	Search for Genre.

#define	MEDIA_PROXY_SEARCH_TYPE_ONLY_TRACKS 0x08
	Search for Tracks only.

#define	MEDIA_PROXY_SEARCH_TYPE_ONLY_GROUPS 0x09
	Search for Groups only.

Search notification result codes
#define	MEDIA_PROXY_SEARCH_SUCCESS 0x01
	Search request was accepted; search has started.

#define	MEDIA_PROXY_SEARCH_FAILURE 0x02
	Search request was invalid; no search started.

Group object object types
#define	MEDIA_PROXY_GROUP_OBJECT_TRACK_TYPE 0x00
	Group object type is track.

#define	MEDIA_PROXY_GROUP_OBJECT_GROUP_TYPE 0x01
	Group object type is group.

Detailed Description

Media proxy module.

Since: 3.0

Version: 0.8.0

The media proxy module is the connection point between media players and media controllers.

A media player has (access to) media content and knows how to navigate and play this content. A media controller reads or gets information from a player and controls the player by setting player parameters and giving the player commands.

The media proxy module allows media player implementations to make themselves available to media controllers. And it allows controllers to access, and get updates from, any player.

The media proxy module allows both local and remote control of local player instances: A media controller may be a local application, or it may be a Media Control Service relaying requests from a remote Media Control Client. There may be either local or remote control, or both, or even multiple instances of each.

Macro Definition Documentation

◆ MEDIA_PROXY_CMD_CANNOT_BE_COMPLETED

#define MEDIA_PROXY_CMD_CANNOT_BE_COMPLETED 0x04

#include <zephyr/bluetooth/audio/media_proxy.h>

The requested action of any Media Control Point write cannot be completed successfully because of a condition within the player.

◆ MEDIA_PROXY_CMD_NOT_SUPPORTED

#define MEDIA_PROXY_CMD_NOT_SUPPORTED 0x02

#include <zephyr/bluetooth/audio/media_proxy.h>

An invalid or unsupported opcode was used for the Media Control Point write.

◆ MEDIA_PROXY_CMD_PLAYER_INACTIVE

#define MEDIA_PROXY_CMD_PLAYER_INACTIVE 0x03

#include <zephyr/bluetooth/audio/media_proxy.h>

The Media Player State characteristic value is Inactive when the opcode is received or the result of the requested action of the opcode results in the Media Player State characteristic being set to Inactive.

◆ MEDIA_PROXY_CMD_SUCCESS

#define MEDIA_PROXY_CMD_SUCCESS 0x01

#include <zephyr/bluetooth/audio/media_proxy.h>

Action requested by the opcode write was completed successfully.

◆ MEDIA_PROXY_GROUP_OBJECT_GROUP_TYPE

#define MEDIA_PROXY_GROUP_OBJECT_GROUP_TYPE 0x01

#include <zephyr/bluetooth/audio/media_proxy.h>

Group object type is group.

◆ MEDIA_PROXY_GROUP_OBJECT_TRACK_TYPE

#define MEDIA_PROXY_GROUP_OBJECT_TRACK_TYPE 0x00

#include <zephyr/bluetooth/audio/media_proxy.h>

Group object type is track.

◆ MEDIA_PROXY_OP_FAST_FORWARD

#define MEDIA_PROXY_OP_FAST_FORWARD 0x04

#include <zephyr/bluetooth/audio/media_proxy.h>

Fast forward the current track.

◆ MEDIA_PROXY_OP_FAST_REWIND

#define MEDIA_PROXY_OP_FAST_REWIND 0x03

#include <zephyr/bluetooth/audio/media_proxy.h>

Fast rewind the current track.

◆ MEDIA_PROXY_OP_FIRST_GROUP

#define MEDIA_PROXY_OP_FIRST_GROUP 0x42

#include <zephyr/bluetooth/audio/media_proxy.h>

Set the current group to the first group in the sequence of groups.

◆ MEDIA_PROXY_OP_FIRST_SEGMENT

#define MEDIA_PROXY_OP_FIRST_SEGMENT 0x22

#include <zephyr/bluetooth/audio/media_proxy.h>

Set the current track position to the starting position of the first segment of the current track.

◆ MEDIA_PROXY_OP_FIRST_TRACK

#define MEDIA_PROXY_OP_FIRST_TRACK 0x32

#include <zephyr/bluetooth/audio/media_proxy.h>

Set the current track to the first track based on the playing order.

◆ MEDIA_PROXY_OP_GOTO_GROUP

#define MEDIA_PROXY_OP_GOTO_GROUP 0x44

#include <zephyr/bluetooth/audio/media_proxy.h>

Set the current group to the nth group in the sequence of groups.

◆ MEDIA_PROXY_OP_GOTO_SEGMENT

#define MEDIA_PROXY_OP_GOTO_SEGMENT 0x24

#include <zephyr/bluetooth/audio/media_proxy.h>

Set the current track position to the starting position of the nth segment of the current track.

◆ MEDIA_PROXY_OP_GOTO_TRACK

#define MEDIA_PROXY_OP_GOTO_TRACK 0x34

#include <zephyr/bluetooth/audio/media_proxy.h>

Set the current track to the nth track based on the playing order.

◆ MEDIA_PROXY_OP_LAST_GROUP

#define MEDIA_PROXY_OP_LAST_GROUP 0x43

#include <zephyr/bluetooth/audio/media_proxy.h>

Set the current group to the last group in the sequence of groups.

◆ MEDIA_PROXY_OP_LAST_SEGMENT

#define MEDIA_PROXY_OP_LAST_SEGMENT 0x23

#include <zephyr/bluetooth/audio/media_proxy.h>

Set the current track position to the starting position of the last segment of the current track.

◆ MEDIA_PROXY_OP_LAST_TRACK

#define MEDIA_PROXY_OP_LAST_TRACK 0x33

#include <zephyr/bluetooth/audio/media_proxy.h>

Set the current track to the last track based on the playing order.

◆ MEDIA_PROXY_OP_MOVE_RELATIVE

#define MEDIA_PROXY_OP_MOVE_RELATIVE 0x10

#include <zephyr/bluetooth/audio/media_proxy.h>

Set a new current track position relative to the current track position.

◆ MEDIA_PROXY_OP_NEXT_GROUP

#define MEDIA_PROXY_OP_NEXT_GROUP 0x41

#include <zephyr/bluetooth/audio/media_proxy.h>

Set the current group to the next group in the sequence of groups.

◆ MEDIA_PROXY_OP_NEXT_SEGMENT

#define MEDIA_PROXY_OP_NEXT_SEGMENT 0x21

#include <zephyr/bluetooth/audio/media_proxy.h>

Set the current track position to the starting position of the next segment of the current track.

◆ MEDIA_PROXY_OP_NEXT_TRACK

#define MEDIA_PROXY_OP_NEXT_TRACK 0x31

#include <zephyr/bluetooth/audio/media_proxy.h>

Set the current track to the next track based on the playing order.

◆ MEDIA_PROXY_OP_PAUSE

#define MEDIA_PROXY_OP_PAUSE 0x02

#include <zephyr/bluetooth/audio/media_proxy.h>

Pause playing the current track.

◆ MEDIA_PROXY_OP_PLAY

#define MEDIA_PROXY_OP_PLAY 0x01

#include <zephyr/bluetooth/audio/media_proxy.h>

Start playing the current track.

◆ MEDIA_PROXY_OP_PREV_GROUP

#define MEDIA_PROXY_OP_PREV_GROUP 0x40

#include <zephyr/bluetooth/audio/media_proxy.h>

Set the current group to the previous group in the sequence of groups.

◆ MEDIA_PROXY_OP_PREV_SEGMENT

#define MEDIA_PROXY_OP_PREV_SEGMENT 0x20

#include <zephyr/bluetooth/audio/media_proxy.h>

Set the current track position to the starting position of the previous segment of the current track.

◆ MEDIA_PROXY_OP_PREV_TRACK

#define MEDIA_PROXY_OP_PREV_TRACK 0x30

#include <zephyr/bluetooth/audio/media_proxy.h>

Set the current track to the previous track based on the playing order.

◆ MEDIA_PROXY_OP_STOP

#define MEDIA_PROXY_OP_STOP 0x05

#include <zephyr/bluetooth/audio/media_proxy.h>

Stop current activity and return to the paused state and set the current track position to the start of the current track.

◆ MEDIA_PROXY_OP_SUP_FAST_FORWARD

#define MEDIA_PROXY_OP_SUP_FAST_FORWARD BIT(3)

#include <zephyr/bluetooth/audio/media_proxy.h>

Support the Fast Forward opcode.

◆ MEDIA_PROXY_OP_SUP_FAST_REWIND

#define MEDIA_PROXY_OP_SUP_FAST_REWIND BIT(2)

#include <zephyr/bluetooth/audio/media_proxy.h>

Support the Fast Rewind opcode.

◆ MEDIA_PROXY_OP_SUP_FIRST_GROUP

#define MEDIA_PROXY_OP_SUP_FIRST_GROUP BIT(18)

#include <zephyr/bluetooth/audio/media_proxy.h>

Support the First Group opcode.

◆ MEDIA_PROXY_OP_SUP_FIRST_SEGMENT

#define MEDIA_PROXY_OP_SUP_FIRST_SEGMENT BIT(8)

#include <zephyr/bluetooth/audio/media_proxy.h>

Support the First Segment opcode.

◆ MEDIA_PROXY_OP_SUP_FIRST_TRACK

#define MEDIA_PROXY_OP_SUP_FIRST_TRACK BIT(13)

#include <zephyr/bluetooth/audio/media_proxy.h>

Support the First Track opcode.

◆ MEDIA_PROXY_OP_SUP_GOTO_GROUP

#define MEDIA_PROXY_OP_SUP_GOTO_GROUP BIT(20)

#include <zephyr/bluetooth/audio/media_proxy.h>

Support the Goto Group opcode.

◆ MEDIA_PROXY_OP_SUP_GOTO_SEGMENT

#define MEDIA_PROXY_OP_SUP_GOTO_SEGMENT BIT(10)

#include <zephyr/bluetooth/audio/media_proxy.h>

Support the Goto Segment opcode.

◆ MEDIA_PROXY_OP_SUP_GOTO_TRACK

#define MEDIA_PROXY_OP_SUP_GOTO_TRACK BIT(15)

#include <zephyr/bluetooth/audio/media_proxy.h>

Support the Goto Track opcode.

◆ MEDIA_PROXY_OP_SUP_LAST_GROUP

#define MEDIA_PROXY_OP_SUP_LAST_GROUP BIT(19)

#include <zephyr/bluetooth/audio/media_proxy.h>

Support the Last Group opcode.

◆ MEDIA_PROXY_OP_SUP_LAST_SEGMENT

#define MEDIA_PROXY_OP_SUP_LAST_SEGMENT BIT(9)

#include <zephyr/bluetooth/audio/media_proxy.h>

Support the Last Segment opcode.

◆ MEDIA_PROXY_OP_SUP_LAST_TRACK

#define MEDIA_PROXY_OP_SUP_LAST_TRACK BIT(14)

#include <zephyr/bluetooth/audio/media_proxy.h>

Support the Last Track opcode.

◆ MEDIA_PROXY_OP_SUP_MOVE_RELATIVE

#define MEDIA_PROXY_OP_SUP_MOVE_RELATIVE BIT(5)

#include <zephyr/bluetooth/audio/media_proxy.h>

Support the Move Relative opcode.

◆ MEDIA_PROXY_OP_SUP_NEXT_GROUP

#define MEDIA_PROXY_OP_SUP_NEXT_GROUP BIT(17)

#include <zephyr/bluetooth/audio/media_proxy.h>

Support the Next Group opcode.

◆ MEDIA_PROXY_OP_SUP_NEXT_SEGMENT

#define MEDIA_PROXY_OP_SUP_NEXT_SEGMENT BIT(7)

#include <zephyr/bluetooth/audio/media_proxy.h>

Support the Next Segment opcode.

◆ MEDIA_PROXY_OP_SUP_NEXT_TRACK

#define MEDIA_PROXY_OP_SUP_NEXT_TRACK BIT(12)

#include <zephyr/bluetooth/audio/media_proxy.h>

Support the Next Track opcode.

◆ MEDIA_PROXY_OP_SUP_PAUSE

#define MEDIA_PROXY_OP_SUP_PAUSE BIT(1)

#include <zephyr/bluetooth/audio/media_proxy.h>

Support the Pause opcode.

◆ MEDIA_PROXY_OP_SUP_PLAY

#define MEDIA_PROXY_OP_SUP_PLAY BIT(0)

#include <zephyr/bluetooth/audio/media_proxy.h>

Media player supported command opcodes.

Support the Play opcode

◆ MEDIA_PROXY_OP_SUP_PREV_GROUP

#define MEDIA_PROXY_OP_SUP_PREV_GROUP BIT(16)

#include <zephyr/bluetooth/audio/media_proxy.h>

Support the Previous Group opcode.

◆ MEDIA_PROXY_OP_SUP_PREV_SEGMENT

#define MEDIA_PROXY_OP_SUP_PREV_SEGMENT BIT(6)

#include <zephyr/bluetooth/audio/media_proxy.h>

Support the Previous Segment opcode.

◆ MEDIA_PROXY_OP_SUP_PREV_TRACK

#define MEDIA_PROXY_OP_SUP_PREV_TRACK BIT(11)

#include <zephyr/bluetooth/audio/media_proxy.h>

Support the Previous Track opcode.

◆ MEDIA_PROXY_OP_SUP_STOP

#define MEDIA_PROXY_OP_SUP_STOP BIT(4)

#include <zephyr/bluetooth/audio/media_proxy.h>

Support the Stop opcode.

◆ MEDIA_PROXY_OPCODES_SUPPORTED_LEN

#define MEDIA_PROXY_OPCODES_SUPPORTED_LEN 4

#include <zephyr/bluetooth/audio/media_proxy.h>

Media player supported opcodes length.

◆ MEDIA_PROXY_PLAYBACK_SPEED_DOUBLE

#define MEDIA_PROXY_PLAYBACK_SPEED_DOUBLE 64

#include <zephyr/bluetooth/audio/media_proxy.h>

Double playback speed, resulting in 200 % speed.

◆ MEDIA_PROXY_PLAYBACK_SPEED_HALF

#define MEDIA_PROXY_PLAYBACK_SPEED_HALF -64

#include <zephyr/bluetooth/audio/media_proxy.h>

Half playback speed, resulting in 50 % speed.

◆ MEDIA_PROXY_PLAYBACK_SPEED_MAX

#define MEDIA_PROXY_PLAYBACK_SPEED_MAX 127

#include <zephyr/bluetooth/audio/media_proxy.h>

Max playback speed, resulting in 395.7 % speed (nearly 400 %)

◆ MEDIA_PROXY_PLAYBACK_SPEED_MIN

#define MEDIA_PROXY_PLAYBACK_SPEED_MIN -128

#include <zephyr/bluetooth/audio/media_proxy.h>

Minimum playback speed, resulting in 25 % speed.

◆ MEDIA_PROXY_PLAYBACK_SPEED_QUARTER

#define MEDIA_PROXY_PLAYBACK_SPEED_QUARTER -128

#include <zephyr/bluetooth/audio/media_proxy.h>

Quarter playback speed, resulting in 25 % speed.

◆ MEDIA_PROXY_PLAYBACK_SPEED_UNITY

#define MEDIA_PROXY_PLAYBACK_SPEED_UNITY 0

#include <zephyr/bluetooth/audio/media_proxy.h>

Unity playback speed, resulting in 100 % speed.

◆ MEDIA_PROXY_PLAYING_ORDER_INORDER_ONCE

#define MEDIA_PROXY_PLAYING_ORDER_INORDER_ONCE 0x03

#include <zephyr/bluetooth/audio/media_proxy.h>

The tracks within a group are played once in track order.

◆ MEDIA_PROXY_PLAYING_ORDER_INORDER_REPEAT

#define MEDIA_PROXY_PLAYING_ORDER_INORDER_REPEAT 0x04

#include <zephyr/bluetooth/audio/media_proxy.h>

The tracks within a group are played in track order repeatedly.

◆ MEDIA_PROXY_PLAYING_ORDER_NEWEST_ONCE

#define MEDIA_PROXY_PLAYING_ORDER_NEWEST_ONCE 0x07

#include <zephyr/bluetooth/audio/media_proxy.h>

The tracks within a group are played once only from the newest first.

◆ MEDIA_PROXY_PLAYING_ORDER_NEWEST_REPEAT

#define MEDIA_PROXY_PLAYING_ORDER_NEWEST_REPEAT 0x08

#include <zephyr/bluetooth/audio/media_proxy.h>

The tracks within a group are played from the newest first repeatedly.

◆ MEDIA_PROXY_PLAYING_ORDER_OLDEST_ONCE

#define MEDIA_PROXY_PLAYING_ORDER_OLDEST_ONCE 0x05

#include <zephyr/bluetooth/audio/media_proxy.h>

The tracks within a group are played once only from the oldest first.

◆ MEDIA_PROXY_PLAYING_ORDER_OLDEST_REPEAT

#define MEDIA_PROXY_PLAYING_ORDER_OLDEST_REPEAT 0x06

#include <zephyr/bluetooth/audio/media_proxy.h>

The tracks within a group are played from the oldest first repeatedly.

◆ MEDIA_PROXY_PLAYING_ORDER_SHUFFLE_ONCE

#define MEDIA_PROXY_PLAYING_ORDER_SHUFFLE_ONCE 0x09

#include <zephyr/bluetooth/audio/media_proxy.h>

The tracks within a group are played in random order once.

◆ MEDIA_PROXY_PLAYING_ORDER_SHUFFLE_REPEAT

#define MEDIA_PROXY_PLAYING_ORDER_SHUFFLE_REPEAT 0x0a

#include <zephyr/bluetooth/audio/media_proxy.h>

The tracks within a group are played in random order repeatedly.

◆ MEDIA_PROXY_PLAYING_ORDER_SINGLE_ONCE

#define MEDIA_PROXY_PLAYING_ORDER_SINGLE_ONCE 0x01

#include <zephyr/bluetooth/audio/media_proxy.h>

A single track is played once; there is no next track.

◆ MEDIA_PROXY_PLAYING_ORDER_SINGLE_REPEAT

#define MEDIA_PROXY_PLAYING_ORDER_SINGLE_REPEAT 0x02

#include <zephyr/bluetooth/audio/media_proxy.h>

A single track is played repeatedly; the next track is the current track.

◆ MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_INORDER_ONCE

#define MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_INORDER_ONCE BIT(2)

#include <zephyr/bluetooth/audio/media_proxy.h>

The tracks within a group are played once in track order.

◆ MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_INORDER_REPEAT

#define MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_INORDER_REPEAT BIT(3)

#include <zephyr/bluetooth/audio/media_proxy.h>

The tracks within a group are played in track order repeatedly.

◆ MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_NEWEST_ONCE

#define MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_NEWEST_ONCE BIT(6)

#include <zephyr/bluetooth/audio/media_proxy.h>

The tracks within a group are played once only from the newest first.

◆ MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_NEWEST_REPEAT

#define MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_NEWEST_REPEAT BIT(7)

#include <zephyr/bluetooth/audio/media_proxy.h>

The tracks within a group are played from the newest first repeatedly.

◆ MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_OLDEST_ONCE

#define MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_OLDEST_ONCE BIT(4)

#include <zephyr/bluetooth/audio/media_proxy.h>

The tracks within a group are played once only from the oldest first.

◆ MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_OLDEST_REPEAT

#define MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_OLDEST_REPEAT BIT(5)

#include <zephyr/bluetooth/audio/media_proxy.h>

The tracks within a group are played from the oldest first repeatedly.

◆ MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_SHUFFLE_ONCE

#define MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_SHUFFLE_ONCE BIT(8)

#include <zephyr/bluetooth/audio/media_proxy.h>

The tracks within a group are played in random order once.

◆ MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_SHUFFLE_REPEAT

#define MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_SHUFFLE_REPEAT BIT(9)

#include <zephyr/bluetooth/audio/media_proxy.h>

The tracks within a group are played in random order repeatedly.

◆ MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_SINGLE_ONCE

#define MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_SINGLE_ONCE BIT(0)

#include <zephyr/bluetooth/audio/media_proxy.h>

A single track is played once; there is no next track.

◆ MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_SINGLE_REPEAT

#define MEDIA_PROXY_PLAYING_ORDERS_SUPPORTED_SINGLE_REPEAT BIT(1)

#include <zephyr/bluetooth/audio/media_proxy.h>

A single track is played repeatedly; the next track is the current track.

◆ MEDIA_PROXY_SEARCH_FAILURE

#define MEDIA_PROXY_SEARCH_FAILURE 0x02

#include <zephyr/bluetooth/audio/media_proxy.h>

Search request was invalid; no search started.

◆ MEDIA_PROXY_SEARCH_SUCCESS

#define MEDIA_PROXY_SEARCH_SUCCESS 0x01

#include <zephyr/bluetooth/audio/media_proxy.h>

Search request was accepted; search has started.

◆ MEDIA_PROXY_SEARCH_TYPE_ALBUM_NAME

#define MEDIA_PROXY_SEARCH_TYPE_ALBUM_NAME 0x03

#include <zephyr/bluetooth/audio/media_proxy.h>

Search for Album Name.

◆ MEDIA_PROXY_SEARCH_TYPE_ARTIST_NAME

#define MEDIA_PROXY_SEARCH_TYPE_ARTIST_NAME 0x02

#include <zephyr/bluetooth/audio/media_proxy.h>

Search for Artist Name.

◆ MEDIA_PROXY_SEARCH_TYPE_EARLIEST_YEAR

#define MEDIA_PROXY_SEARCH_TYPE_EARLIEST_YEAR 0x05

#include <zephyr/bluetooth/audio/media_proxy.h>

Search for Earliest Year.

◆ MEDIA_PROXY_SEARCH_TYPE_GENRE

#define MEDIA_PROXY_SEARCH_TYPE_GENRE 0x07

#include <zephyr/bluetooth/audio/media_proxy.h>

Search for Genre.

◆ MEDIA_PROXY_SEARCH_TYPE_GROUP_NAME

#define MEDIA_PROXY_SEARCH_TYPE_GROUP_NAME 0x04

#include <zephyr/bluetooth/audio/media_proxy.h>

Search for Group Name.

◆ MEDIA_PROXY_SEARCH_TYPE_LATEST_YEAR

#define MEDIA_PROXY_SEARCH_TYPE_LATEST_YEAR 0x06

#include <zephyr/bluetooth/audio/media_proxy.h>

Search for Latest Year.

◆ MEDIA_PROXY_SEARCH_TYPE_ONLY_GROUPS

#define MEDIA_PROXY_SEARCH_TYPE_ONLY_GROUPS 0x09

#include <zephyr/bluetooth/audio/media_proxy.h>

Search for Groups only.

◆ MEDIA_PROXY_SEARCH_TYPE_ONLY_TRACKS

#define MEDIA_PROXY_SEARCH_TYPE_ONLY_TRACKS 0x08

#include <zephyr/bluetooth/audio/media_proxy.h>

Search for Tracks only.

◆ MEDIA_PROXY_SEARCH_TYPE_TRACK_NAME

#define MEDIA_PROXY_SEARCH_TYPE_TRACK_NAME 0x01

#include <zephyr/bluetooth/audio/media_proxy.h>

Search for Track Name.

◆ MEDIA_PROXY_SEEKING_SPEED_FACTOR_MAX

#define MEDIA_PROXY_SEEKING_SPEED_FACTOR_MAX 64

#include <zephyr/bluetooth/audio/media_proxy.h>

Maximum seeking speed - Can be negated.

◆ MEDIA_PROXY_SEEKING_SPEED_FACTOR_MIN

#define MEDIA_PROXY_SEEKING_SPEED_FACTOR_MIN 4

#include <zephyr/bluetooth/audio/media_proxy.h>

Minimum seeking speed - Can be negated.

◆ MEDIA_PROXY_SEEKING_SPEED_FACTOR_ZERO

#define MEDIA_PROXY_SEEKING_SPEED_FACTOR_ZERO 0

#include <zephyr/bluetooth/audio/media_proxy.h>

No seeking.

◆ MEDIA_PROXY_STATE_INACTIVE

#define MEDIA_PROXY_STATE_INACTIVE 0x00

#include <zephyr/bluetooth/audio/media_proxy.h>

The current track is invalid, and no track has been selected.

◆ MEDIA_PROXY_STATE_LAST

#define MEDIA_PROXY_STATE_LAST 0x04

#include <zephyr/bluetooth/audio/media_proxy.h>

Used internally as the last state value.

◆ MEDIA_PROXY_STATE_PAUSED

#define MEDIA_PROXY_STATE_PAUSED 0x02

#include <zephyr/bluetooth/audio/media_proxy.h>

The current track is paused.

The media player has a current track, but it is not being played

◆ MEDIA_PROXY_STATE_PLAYING

#define MEDIA_PROXY_STATE_PLAYING 0x01

#include <zephyr/bluetooth/audio/media_proxy.h>

The media player is playing the current track.

◆ MEDIA_PROXY_STATE_SEEKING

#define MEDIA_PROXY_STATE_SEEKING 0x03

#include <zephyr/bluetooth/audio/media_proxy.h>

The current track is fast forwarding or fast rewinding.

Function Documentation

◆ bt_mcs_get_ots()

struct bt_ots * bt_mcs_get_ots ( void )

#include <zephyr/bluetooth/audio/media_proxy.h>

Get the pointer of the Object Transfer Service used by the Media Control Service.

TODO: Find best location for this call, and move this one also

◆ media_proxy_ctrl_discover_player()

int media_proxy_ctrl_discover_player ( struct bt_conn * conn )

#include <zephyr/bluetooth/audio/media_proxy.h>

Discover a remote media player.

Discover a remote media player instance. The remote player instance will be discovered, and accessed, using Bluetooth, via the media control client and a remote media control service. This call will start a GATT discovery of the Media Control Service on the peer, and setup handles and subscriptions.

This shall be called once before any other actions can be executed for the remote player. The remote player instance will be returned in the discover_player() callback.

Parameters

conn	The connection to do discovery for

Returns: 0 if success, errno on failure

◆ media_proxy_ctrl_get_commands_supported()

int media_proxy_ctrl_get_commands_supported ( struct media_player * player )

#include <zephyr/bluetooth/audio/media_proxy.h>

Read Commands Supported.

Read a bitmap containing the media player's supported command opcodes.

Parameters

player Media player instance pointer

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_get_content_ctrl_id()

uint8_t media_proxy_ctrl_get_content_ctrl_id ( struct media_player * player )

#include <zephyr/bluetooth/audio/media_proxy.h>

Read Content Control ID.

The content control ID identifies a content control service on a device, and links it to the corresponding audio stream.

Parameters

player Media player instance pointer

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_get_current_group_id()

int media_proxy_ctrl_get_current_group_id ( struct media_player * player )

#include <zephyr/bluetooth/audio/media_proxy.h>

Read Current Group Object ID.

Get an ID (48 bit) that can be used to retrieve the Current Track Object from an Object Transfer Service

See the Media Control Service spec v1.0 sections 3.14 and 4.4 for a description of the Current Group Object.

Requires Object Transfer Service

Parameters

player Media player instance pointer

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_get_current_track_id()

int media_proxy_ctrl_get_current_track_id ( struct media_player * player )

#include <zephyr/bluetooth/audio/media_proxy.h>

Read Current Track Object ID.

Get an ID (48 bit) that can be used to retrieve the Current Track Object from an Object Transfer Service

See the Media Control Service spec v1.0 sections 3.11 and 4.3 for a description of the Current Track Object.

Requires Object Transfer Service

Parameters

player Media player instance pointer

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_get_icon_id()

int media_proxy_ctrl_get_icon_id ( struct media_player * player )

#include <zephyr/bluetooth/audio/media_proxy.h>

Read Icon Object ID.

Get an ID (48 bit) that can be used to retrieve the Icon Object from an Object Transfer Service

See the Media Control Service spec v1.0 sections 3.2 and 4.1 for a description of the Icon Object.

Requires Object Transfer Service

Parameters

player Media player instance pointer

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_get_icon_url()

int media_proxy_ctrl_get_icon_url ( struct media_player * player )

#include <zephyr/bluetooth/audio/media_proxy.h>

Read Icon URL.

Get a URL to the media player's icon.

Parameters

player Media player instance pointer

◆ media_proxy_ctrl_get_media_state()

int media_proxy_ctrl_get_media_state ( struct media_player * player )

#include <zephyr/bluetooth/audio/media_proxy.h>

Read Media State.

Read the media player's state

Parameters

player Media player instance pointer

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_get_next_track_id()

int media_proxy_ctrl_get_next_track_id ( struct media_player * player )

#include <zephyr/bluetooth/audio/media_proxy.h>

◆ media_proxy_ctrl_get_parent_group_id()

int media_proxy_ctrl_get_parent_group_id ( struct media_player * player )

#include <zephyr/bluetooth/audio/media_proxy.h>

Read Parent Group Object ID.

Get an ID (48 bit) that can be used to retrieve the Parent Track Object from an Object Transfer Service

The parent group is the parent of the current group.

See the Media Control Service spec v1.0 sections 3.14 and 4.4 for a description of the Current Track Object.

Requires Object Transfer Service

Parameters

player Media player instance pointer

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_get_playback_speed()

int media_proxy_ctrl_get_playback_speed ( struct media_player * player )

#include <zephyr/bluetooth/audio/media_proxy.h>

Get Playback Speed.

The playback speed parameter is related to the actual playback speed as follows: actual playback speed = 2^(speed_parameter/64)

A speed parameter of 0 corresponds to unity speed playback (i.e. playback at "normal" speed). A speed parameter of -128 corresponds to playback at one fourth of normal speed, 127 corresponds to playback at almost four times the normal speed.

Parameters

player Media player instance pointer

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_get_player_name()

int media_proxy_ctrl_get_player_name ( struct media_player * player )

#include <zephyr/bluetooth/audio/media_proxy.h>

Read Media Player Name.

Parameters

player Media player instance pointer

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_get_playing_order()

int media_proxy_ctrl_get_playing_order ( struct media_player * player )

#include <zephyr/bluetooth/audio/media_proxy.h>

Read Playing Order.

Parameters

player Media player instance pointer

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_get_playing_orders_supported()

int media_proxy_ctrl_get_playing_orders_supported ( struct media_player * player )

#include <zephyr/bluetooth/audio/media_proxy.h>

Read Playing Orders Supported.

Read a bitmap containing the media player's supported playing orders.

Parameters

player Media player instance pointer

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_get_search_results_id()

int media_proxy_ctrl_get_search_results_id ( struct media_player * player )

#include <zephyr/bluetooth/audio/media_proxy.h>

Read Search Results Object ID.

Get an ID (48 bit) that can be used to retrieve the Search Results Object from an Object Transfer Service

The search results object is a group object. The search results object only exists if a successful search operation has been done.

Requires Object Transfer Service

Parameters

player Media player instance pointer

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_get_seeking_speed()

int media_proxy_ctrl_get_seeking_speed ( struct media_player * player )

#include <zephyr/bluetooth/audio/media_proxy.h>

Get Seeking Speed.

The seeking speed gives the speed with which the player is seeking. It is a factor, relative to real-time playback speed - a factor four means seeking happens at four times the real-time playback speed. Positive values are for forward seeking, negative values for backwards seeking.

The seeking speed is not settable - a non-zero seeking speed is the result of "fast rewind" of "fast forward" commands.

Parameters

player Media player instance pointer

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_get_track_duration()

int media_proxy_ctrl_get_track_duration ( struct media_player * player )

#include <zephyr/bluetooth/audio/media_proxy.h>

Read Track Duration.

The duration of a track is measured in hundredths of a second.

Parameters

player Media player instance pointer

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_get_track_position()

int media_proxy_ctrl_get_track_position ( struct media_player * player )

#include <zephyr/bluetooth/audio/media_proxy.h>

Read Track Position.

The position of the player (the playing position) is measured in hundredths of a second from the beginning of the track

Parameters

player Media player instance pointer

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_get_track_segments_id()

int media_proxy_ctrl_get_track_segments_id ( struct media_player * player )

#include <zephyr/bluetooth/audio/media_proxy.h>

Read Current Track Segments Object ID.

Get an ID (48 bit) that can be used to retrieve the Current Track Segments Object from an Object Transfer Service

See the Media Control Service spec v1.0 sections 3.10 and 4.2 for a description of the Track Segments Object.

Requires Object Transfer Service

Parameters

player Media player instance pointer

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_get_track_title()

int media_proxy_ctrl_get_track_title ( struct media_player * player )

#include <zephyr/bluetooth/audio/media_proxy.h>

Read Track Title.

Parameters

player Media player instance pointer

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_register()

int media_proxy_ctrl_register ( struct media_proxy_ctrl_cbs * ctrl_cbs )

#include <zephyr/bluetooth/audio/media_proxy.h>

Register a controller with the media_proxy.

Parameters

ctrl_cbs Callbacks to the controller

Returns: 0 if success, errno on failure

◆ media_proxy_ctrl_send_command()

int media_proxy_ctrl_send_command	(	struct media_player *	player,
		const struct mpl_cmd *	command )

#include <zephyr/bluetooth/audio/media_proxy.h>

Send Command.

Send a command to the media player. Commands may cause the media player to change its state May result in two callbacks - one for the actual sending of the command to the player, one for the result of the command from the player.

Parameters

player	Media player instance pointer
command	The command to send

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_send_search()

int media_proxy_ctrl_send_search	(	struct media_player *	player,
		const struct mpl_search *	search )

#include <zephyr/bluetooth/audio/media_proxy.h>

Set Search.

Write a search to the media player. If the search is successful, the search results will be available as a group object in the Object Transfer Service (OTS).

May result in up to three callbacks

one for the actual sending of the search to the player
one for the result code for the search from the player
if the search is successful, one for the search results object ID in the OTs

Requires Object Transfer Service

Parameters

player	Media player instance pointer
search	The search to write

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_set_current_group_id()

int media_proxy_ctrl_set_current_group_id	(	struct media_player *	player,
		uint64_t	id )

#include <zephyr/bluetooth/audio/media_proxy.h>

Set Current Group Object ID.

Change the player's current group to the group given by the ID, and the current track to the first track in that group.

Requires Object Transfer Service

Parameters

player	Media player instance pointer
id	The ID of a group object

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_set_current_track_id()

int media_proxy_ctrl_set_current_track_id	(	struct media_player *	player,
		uint64_t	id )

#include <zephyr/bluetooth/audio/media_proxy.h>

Set Current Track Object ID.

Change the player's current track to the track given by the ID. (Behaves similarly to the goto track command.)

Requires Object Transfer Service

Parameters

player	Media player instance pointer
id	The ID of a track object

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_set_next_track_id()

int media_proxy_ctrl_set_next_track_id	(	struct media_player *	player,
		uint64_t	id )

#include <zephyr/bluetooth/audio/media_proxy.h>

Set Next Track Object ID.

Change the player's next track to the track given by the ID.

Requires Object Transfer Service

Parameters

player	Media player instance pointer
id	The ID of a track object

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_set_playback_speed()

int media_proxy_ctrl_set_playback_speed	(	struct media_player *	player,
		int8_t	speed )

#include <zephyr/bluetooth/audio/media_proxy.h>

Set Playback Speed.

See the get_playback_speed() function for an explanation of the playback speed parameter.

Note that the media player may not support all possible values of the playback speed parameter. If the value given is not supported, and is higher than the current value, the player should set the playback speed to the next higher supported value. (And correspondingly to the next lower supported value for given values lower than the current value.)

Parameters

player	Media player instance pointer
speed	The playback speed parameter to set

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_set_playing_order()

int media_proxy_ctrl_set_playing_order	(	struct media_player *	player,
		uint8_t	order )

#include <zephyr/bluetooth/audio/media_proxy.h>

Set Playing Order.

Set the media player's playing order

Parameters

player	Media player instance pointer
order	The playing order to set

Returns: 0 if success, errno on failure.

◆ media_proxy_ctrl_set_track_position()

int media_proxy_ctrl_set_track_position	(	struct media_player *	player,
		int32_t	position )

#include <zephyr/bluetooth/audio/media_proxy.h>

Set Track Position.

Set the playing position of the media player in the current track. The position is given in hundredths of a second, from the beginning of the track of the track for positive values, and (backwards) from the end of the track for negative values.

Parameters

player	Media player instance pointer
position	The track position to set

Returns: 0 if success, errno on failure.

◆ media_proxy_pl_command_cb()

void media_proxy_pl_command_cb ( const struct mpl_cmd_ntf * cmd_ntf )

#include <zephyr/bluetooth/audio/media_proxy.h>

Command callback.

To be called when a command has been sent, to notify whether the command was successfully performed or not. See the MEDIA_PROXY_CMD_* result code defines.

Parameters

cmd_ntf The result of the command

◆ media_proxy_pl_commands_supported_cb()

void media_proxy_pl_commands_supported_cb ( uint32_t opcodes )

#include <zephyr/bluetooth/audio/media_proxy.h>

Commands supported callback.

To be called when the set of commands supported is changed

Parameters

opcodes The supported commands opcodes

◆ media_proxy_pl_current_group_id_cb()

void media_proxy_pl_current_group_id_cb ( uint64_t id )

#include <zephyr/bluetooth/audio/media_proxy.h>

Current group object ID callback.

To be called when the ID of the current group is changed

Parameters

id	The ID of the current group object in the OTS

◆ media_proxy_pl_current_track_id_cb()

void media_proxy_pl_current_track_id_cb ( uint64_t id )

#include <zephyr/bluetooth/audio/media_proxy.h>

Current track object ID callback.

To be called when the ID of the current track is changed (e.g. due to a track change).

Parameters

id	The ID of the current track object in the OTS

◆ media_proxy_pl_icon_url_cb()

void media_proxy_pl_icon_url_cb ( const char * url )

#include <zephyr/bluetooth/audio/media_proxy.h>

Player icon URL changed callback.

To be called when the player's icon URL is changed.

Parameters

url	The URL of the player's icon

◆ media_proxy_pl_init()

int media_proxy_pl_init ( void )

#include <zephyr/bluetooth/audio/media_proxy.h>

Initialize player.

TODO: Move to player header file

◆ media_proxy_pl_media_state_cb()

void media_proxy_pl_media_state_cb ( uint8_t state )

#include <zephyr/bluetooth/audio/media_proxy.h>

Media state callback.

To be called when the media state is changed

Parameters

state The media player's state

◆ media_proxy_pl_name_cb()

void media_proxy_pl_name_cb ( const char * name )

#include <zephyr/bluetooth/audio/media_proxy.h>

Player name changed callback.

To be called when the player's name is changed.

Parameters

name	The name of the player

◆ media_proxy_pl_next_track_id_cb()

void media_proxy_pl_next_track_id_cb ( uint64_t id )

#include <zephyr/bluetooth/audio/media_proxy.h>

Next track object ID callback.

To be called when the ID of the current track is changes

Parameters

id	The ID of the next track object in the OTS

◆ media_proxy_pl_parent_group_id_cb()

void media_proxy_pl_parent_group_id_cb ( uint64_t id )

#include <zephyr/bluetooth/audio/media_proxy.h>

Parent group object ID callback.

To be called when the ID of the parent group is changed

Parameters

id	The ID of the parent group object in the OTS

◆ media_proxy_pl_playback_speed_cb()

void media_proxy_pl_playback_speed_cb ( int8_t speed )

#include <zephyr/bluetooth/audio/media_proxy.h>

Playback speed callback.

To be called when the playback speed is changed.

Parameters

speed The playback speed parameter

◆ media_proxy_pl_playing_order_cb()

void media_proxy_pl_playing_order_cb ( uint8_t order )

#include <zephyr/bluetooth/audio/media_proxy.h>

Playing order callback.

To be called when the playing order is changed

Parameters

order The playing order

◆ media_proxy_pl_register()

int media_proxy_pl_register ( struct media_proxy_pl_calls * pl_calls )

#include <zephyr/bluetooth/audio/media_proxy.h>

Register a player with the media proxy.

Register a player with the media proxy module, for use by media controllers.

The media proxy may call any non-NULL function pointers in the supplied media_proxy_pl_calls structure.

Parameters

pl_calls Function pointers to the media player's calls

Returns: 0 if success, errno on failure

◆ media_proxy_pl_search_cb()

void media_proxy_pl_search_cb ( uint8_t result_code )

#include <zephyr/bluetooth/audio/media_proxy.h>

Search callback.

To be called when a search has been set to notify whether the search was successfully performed or not. See the MEDIA_PROXY_SEARCH_* result code defines.

The actual results of the search, if successful, can be found in the search results object.

Parameters

result_code The result (success or failure) of the search

◆ media_proxy_pl_search_results_id_cb()

void media_proxy_pl_search_results_id_cb ( uint64_t id )

#include <zephyr/bluetooth/audio/media_proxy.h>

Search Results object ID callback.

To be called when the ID of the search results is changed (typically as the result of a new successful search).

Parameters

id	The ID of the search results object in the OTS

◆ media_proxy_pl_seeking_speed_cb()

void media_proxy_pl_seeking_speed_cb ( int8_t speed )

#include <zephyr/bluetooth/audio/media_proxy.h>

Seeking speed callback.

To be called when the seeking speed is changed.

Parameters

speed The seeking speed factor

◆ media_proxy_pl_track_changed_cb()

void media_proxy_pl_track_changed_cb ( void )

#include <zephyr/bluetooth/audio/media_proxy.h>

Track changed callback.

To be called when the player's current track is changed

◆ media_proxy_pl_track_duration_cb()

void media_proxy_pl_track_duration_cb ( int32_t duration )

#include <zephyr/bluetooth/audio/media_proxy.h>

Track duration callback.

To be called when the current track's duration is changed (e.g. due to a track change)

The track duration is given in hundredths of a second.

Parameters

duration The track duration

◆ media_proxy_pl_track_position_cb()

void media_proxy_pl_track_position_cb ( int32_t position )

#include <zephyr/bluetooth/audio/media_proxy.h>

Track position callback.

To be called when the media player's position in the track is changed, or when the player is paused or similar.

Exception: This callback should not be called when the position changes during regular playback, i.e. while the player is playing and playback happens at a constant speed.

The track position is given in hundredths of a second from the start of the track.

Parameters

position The media player's position in the track

◆ media_proxy_pl_track_title_cb()

void media_proxy_pl_track_title_cb ( char * title )

#include <zephyr/bluetooth/audio/media_proxy.h>

Track title callback.

To be called when the player's current track is changed

Parameters

title The title of the track

Data Structures

Macros

Functions

Playback speed parameters

Seeking speed factors

Playing orders

Playing orders supported

Media player states

Media player command opcodes

Media player command result codes

Search operation type values

Search notification result codes

Group object object types

Detailed Description

Macro Definition Documentation

◆ MEDIA_PROXY_CMD_CANNOT_BE_COMPLETED

◆ MEDIA_PROXY_CMD_NOT_SUPPORTED

◆ MEDIA_PROXY_CMD_PLAYER_INACTIVE

◆ MEDIA_PROXY_CMD_SUCCESS

◆ MEDIA_PROXY_GROUP_OBJECT_GROUP_TYPE

◆ MEDIA_PROXY_GROUP_OBJECT_TRACK_TYPE

◆ MEDIA_PROXY_OP_FAST_FORWARD

◆ MEDIA_PROXY_OP_FAST_REWIND

◆ MEDIA_PROXY_OP_FIRST_GROUP

◆ MEDIA_PROXY_OP_FIRST_SEGMENT

◆ MEDIA_PROXY_OP_FIRST_TRACK

◆ MEDIA_PROXY_OP_GOTO_GROUP

◆ MEDIA_PROXY_OP_GOTO_SEGMENT

◆ MEDIA_PROXY_OP_GOTO_TRACK

◆ MEDIA_PROXY_OP_LAST_GROUP

◆ MEDIA_PROXY_OP_LAST_SEGMENT

◆ MEDIA_PROXY_OP_LAST_TRACK

◆ MEDIA_PROXY_OP_MOVE_RELATIVE

◆ MEDIA_PROXY_OP_NEXT_GROUP

◆ MEDIA_PROXY_OP_NEXT_SEGMENT

◆ MEDIA_PROXY_OP_NEXT_TRACK

◆ MEDIA_PROXY_OP_PAUSE

◆ MEDIA_PROXY_OP_PLAY

◆ MEDIA_PROXY_OP_PREV_GROUP

◆ MEDIA_PROXY_OP_PREV_SEGMENT

◆ MEDIA_PROXY_OP_PREV_TRACK

◆ MEDIA_PROXY_OP_STOP

◆ MEDIA_PROXY_OP_SUP_FAST_FORWARD

◆ MEDIA_PROXY_OP_SUP_FAST_REWIND

◆ MEDIA_PROXY_OP_SUP_FIRST_GROUP

◆ MEDIA_PROXY_OP_SUP_FIRST_SEGMENT

◆ MEDIA_PROXY_OP_SUP_FIRST_TRACK

◆ MEDIA_PROXY_OP_SUP_GOTO_GROUP

◆ MEDIA_PROXY_OP_SUP_GOTO_SEGMENT

◆ MEDIA_PROXY_OP_SUP_GOTO_TRACK

◆ MEDIA_PROXY_OP_SUP_LAST_GROUP

◆ MEDIA_PROXY_OP_SUP_LAST_SEGMENT

◆ MEDIA_PROXY_OP_SUP_LAST_TRACK

◆ MEDIA_PROXY_OP_SUP_MOVE_RELATIVE

◆ MEDIA_PROXY_OP_SUP_NEXT_GROUP

◆ MEDIA_PROXY_OP_SUP_NEXT_SEGMENT

◆ MEDIA_PROXY_OP_SUP_NEXT_TRACK

◆ MEDIA_PROXY_OP_SUP_PAUSE

◆ MEDIA_PROXY_OP_SUP_PLAY

◆ MEDIA_PROXY_OP_SUP_PREV_GROUP

◆ MEDIA_PROXY_OP_SUP_PREV_SEGMENT

◆ MEDIA_PROXY_OP_SUP_PREV_TRACK

◆ MEDIA_PROXY_OP_SUP_STOP

◆ MEDIA_PROXY_OPCODES_SUPPORTED_LEN

◆ MEDIA_PROXY_PLAYBACK_SPEED_DOUBLE

◆ MEDIA_PROXY_PLAYBACK_SPEED_HALF

◆ MEDIA_PROXY_PLAYBACK_SPEED_MAX

◆ MEDIA_PROXY_PLAYBACK_SPEED_MIN

◆ MEDIA_PROXY_PLAYBACK_SPEED_QUARTER

◆ MEDIA_PROXY_PLAYBACK_SPEED_UNITY

◆ MEDIA_PROXY_PLAYING_ORDER_INORDER_ONCE

◆ MEDIA_PROXY_PLAYING_ORDER_INORDER_REPEAT

◆ MEDIA_PROXY_PLAYING_ORDER_NEWEST_ONCE

◆ MEDIA_PROXY_PLAYING_ORDER_NEWEST_REPEAT

◆ MEDIA_PROXY_PLAYING_ORDER_OLDEST_ONCE

◆ MEDIA_PROXY_PLAYING_ORDER_OLDEST_REPEAT

◆ MEDIA_PROXY_PLAYING_ORDER_SHUFFLE_ONCE

◆ MEDIA_PROXY_PLAYING_ORDER_SHUFFLE_REPEAT

◆ MEDIA_PROXY_PLAYING_ORDER_SINGLE_ONCE

◆ MEDIA_PROXY_PLAYING_ORDER_SINGLE_REPEAT