ESP32 A2DP

A Simple ESP32 Bluetooth A2DP Library (to implement a Music Receiver or Sender) that supports Arduino, PlatformIO and Espressif IDF. More...

Classes
class	A2DPVolumeControl
	Abstract class for handling of the volume of the audio data. More...
class	BluetoothA2DPOutput
	Abstract Output Class. More...
class	BluetoothA2DPSink
	A2DP Bluethooth Sink - We initialize and start the Bluetooth A2DP Sink. The example https://github.com/espressif/esp-idf/tree/master/examples/bluetooth/bluedroid/classic_bt/a2dp_sink was refactered into a C++ class. More...
class	BluetoothA2DPSinkQueued
	The BluetoothA2DPSinkQueued is using a separate Task with an additinal Queue to write the I2S data. application. More...
class	BluetoothA2DPSource
	A2DP Bluetooth Source. More...

Typedefs
typedef uint8_t	esp_bd_addr_t[ESP_BD_ADDR_LEN]
	Bluetooth address.

Enumerations
enum	APP_AV_STATE {   APP_AV_STATE_IDLE , APP_AV_STATE_DISCOVERING , APP_AV_STATE_DISCOVERED , APP_AV_STATE_UNCONNECTED ,   APP_AV_STATE_CONNECTING , APP_AV_STATE_CONNECTED , APP_AV_STATE_DISCONNECTING }
	Buetooth A2DP global state.
enum	esp_a2d_audio_state_t { ESP_A2D_AUDIO_STATE_SUSPEND = 0 , ESP_A2D_AUDIO_STATE_STARTED , ESP_A2D_AUDIO_STATE_STOPPED = ESP_A2D_AUDIO_STATE_SUSPEND , ESP_A2D_AUDIO_STATE_REMOTE_SUSPEND = ESP_A2D_AUDIO_STATE_SUSPEND }
	Buetooth A2DP datapath states. More...
enum	esp_a2d_connection_state_t { ESP_A2D_CONNECTION_STATE_DISCONNECTED = 0 , ESP_A2D_CONNECTION_STATE_CONNECTING , ESP_A2D_CONNECTION_STATE_CONNECTED , ESP_A2D_CONNECTION_STATE_DISCONNECTING }
	Buetooth A2DP connection states. More...
enum	esp_avrc_playback_stat_t {   ESP_AVRC_PLAYBACK_STOPPED = 0 , ESP_AVRC_PLAYBACK_PLAYING = 1 , ESP_AVRC_PLAYBACK_PAUSED = 2 , ESP_AVRC_PLAYBACK_FWD_SEEK = 3 ,   ESP_AVRC_PLAYBACK_REV_SEEK = 4 , ESP_AVRC_PLAYBACK_ERROR = 0xFF }
	AVRCP current status of playback. More...
enum	esp_avrc_rn_event_ids_t
	AVRC event notification ids.
enum	esp_bt_discovery_mode_t { ESP_BT_NON_DISCOVERABLE , ESP_BT_LIMITED_DISCOVERABLE , ESP_BT_GENERAL_DISCOVERABLE }
	AVRCP discovery mode. More...
enum	esp_bt_mode_t { ESP_BT_MODE_IDLE = 0x00 , ESP_BT_MODE_BLE = 0x01 , ESP_BT_MODE_CLASSIC_BT = 0x02 , ESP_BT_MODE_BTDM = 0x03 }
	Bluetooth Controller mode. More...
enum	ReconnectStatus { NoReconnect , AutoReconnect , IsReconnecting }
	Buetooth A2DP Reconnect Status.

Variables
enum esp_avrc_rn_event_ids_t	ESP_AVRC_RN_PLAY_STATUS_CHANGE = 0x01
	AVRC event notification ids. More...

Detailed Description

A Simple ESP32 Bluetooth A2DP Library (to implement a Music Receiver or Sender) that supports Arduino, PlatformIO and Espressif IDF.

Enumeration Type Documentation

esp_a2d_audio_state_t

enum esp_a2d_audio_state_t

Buetooth A2DP datapath states.

Enumerator
ESP_A2D_AUDIO_STATE_SUSPEND	audio stream datapath suspended by remote device
ESP_A2D_AUDIO_STATE_STARTED	audio stream datapath started
ESP_A2D_AUDIO_STATE_STOPPED	Note Deprecated
ESP_A2D_AUDIO_STATE_REMOTE_SUSPEND	Note Deprecated

esp_a2d_connection_state_t

enum esp_a2d_connection_state_t

Buetooth A2DP connection states.

Enumerator
ESP_A2D_CONNECTION_STATE_DISCONNECTED	connection released
ESP_A2D_CONNECTION_STATE_CONNECTING	connecting remote device
ESP_A2D_CONNECTION_STATE_CONNECTED	connection established
ESP_A2D_CONNECTION_STATE_DISCONNECTING	disconnecting remote device

esp_avrc_playback_stat_t

enum esp_avrc_playback_stat_t

AVRCP current status of playback.

Enumerator
ESP_AVRC_PLAYBACK_STOPPED	stopped
ESP_AVRC_PLAYBACK_PLAYING	playing
ESP_AVRC_PLAYBACK_PAUSED	paused
ESP_AVRC_PLAYBACK_FWD_SEEK	forward seek
ESP_AVRC_PLAYBACK_REV_SEEK	reverse seek
ESP_AVRC_PLAYBACK_ERROR	error

esp_bt_discovery_mode_t

enum esp_bt_discovery_mode_t

AVRCP discovery mode.

Enumerator
ESP_BT_NON_DISCOVERABLE	Non-discoverable
ESP_BT_LIMITED_DISCOVERABLE	Limited Discoverable
ESP_BT_GENERAL_DISCOVERABLE	General Discoverable

esp_bt_mode_t

enum esp_bt_mode_t

Bluetooth Controller mode.

Enumerator
ESP_BT_MODE_IDLE	Bluetooth is not operating.
ESP_BT_MODE_BLE	Bluetooth is operating in BLE mode.
ESP_BT_MODE_CLASSIC_BT	Bluetooth is operating in Classic Bluetooth mode.
ESP_BT_MODE_BTDM	Bluetooth is operating in Dual mode.

Variable Documentation

ESP_AVRC_RN_PLAY_STATUS_CHANGE

ESP_AVRC_RN_PLAY_STATUS_CHANGE = 0x01

AVRC event notification ids.

track status change, eg. from playing to paused