a2dp_sink.h File Reference

#include <stdint.h>

Functions
void	a2dp_sink_create_sdp_record (uint8_t *service, uint32_t service_record_handle, uint16_t supported_features, const char *service_name, const char *service_provider_name)
	Create A2DP Sink service record. More...
uint8_t	a2dp_sink_create_stream_endpoint (avdtp_media_type_t media_type, avdtp_media_codec_type_t media_codec_type, uint8_t *codec_capabilities, uint16_t codec_capabilities_len, uint8_t *codec_configuration, uint16_t codec_configuration_len, uint8_t *out_local_seid)
	Create a stream endpoint of type SINK, and register media codec by specifying its capabilities and the default configuration. More...
void	a2dp_sink_disconnect (uint16_t a2dp_cid)
	Release stream and disconnect from remote. More...
uint8_t	a2dp_sink_establish_stream (bd_addr_t remote, uint8_t local_seid, uint16_t *out_a2dp_cid)
	Establish stream. More...
void	a2dp_sink_init (void)
	Initialize up A2DP Sink device. More...
void	a2dp_sink_register_media_handler (void(*callback)(uint8_t local_seid, uint8_t *packet, uint16_t size))
	Register media handler for the A2DP Sink client. More...
void	a2dp_sink_register_packet_handler (btstack_packet_handler_t callback)
	Register callback for the A2DP Sink client. More...

void a2dp_sink_create_sdp_record	(	uint8_t *	service,
		uint32_t	service_record_handle,
		uint16_t	supported_features,
		const char *	service_name,
		const char *	service_provider_name
	)

Create A2DP Sink service record.

Parameters

service
service_record_handle
supported_features	16-bit bitmap, see AVDTP_SINK_SF_* values in avdtp.h
service_name
service_provider_name

uint8_t a2dp_sink_create_stream_endpoint	(	avdtp_media_type_t	media_type,
		avdtp_media_codec_type_t	media_codec_type,
		uint8_t *	codec_capabilities,
		uint16_t	codec_capabilities_len,
		uint8_t *	codec_configuration,
		uint16_t	codec_configuration_len,
		uint8_t *	out_local_seid
	)

Create a stream endpoint of type SINK, and register media codec by specifying its capabilities and the default configuration.

Parameters

media_type	see avdtp_media_type_t values in avdtp.h (audio, video or multimedia)
media_codec_type	see avdtp_media_codec_type_t values in avdtp.h
codec_capabilities	media codec capabilities as defined in A2DP spec, section 4 - Audio Codec Interoperability Requirements.
codec_capabilities_len	media codec capabilities length
codec_configuration	default media codec configuration
codec_configuration_len	media codec configuration length
out_local_seid	Assigned stream endpoint ID used in further A2DP commands.

Returns

status ERROR_CODE_SUCCESS if sucessful

void a2dp_sink_disconnect

(

uint16_t

a2dp_cid

)

Release stream and disconnect from remote.

Parameters

a2dp_cid

A2DP channel identifyer.

uint8_t a2dp_sink_establish_stream	(	bd_addr_t	remote,
		uint8_t	local_seid,
		uint16_t *	out_a2dp_cid
	)

Establish stream.

Parameters

remote
local_seid	ID of a local stream endpoint.
out_a2dp_cid	Assigned A2DP channel identifyer used for furhter A2DP commands.

void a2dp_sink_init

(

void

)

Initialize up A2DP Sink device.

void a2dp_sink_register_media_handler

(

void(*)(uint8_t local_seid, uint8_t *packet, uint16_t size)

callback

)

Register media handler for the A2DP Sink client.

Parameters

callback
packet
size

void a2dp_sink_register_packet_handler

(

btstack_packet_handler_t

callback

)

Register callback for the A2DP Sink client.

It will receive following subevents of HCI_EVENT_A2DP_META HCI event type:

• A2DP_SUBEVENT_SIGNALING_MEDIA_CODEC_SBC_CONFIGURATION: indicates from remote chosen SBC media codec configuration
• A2DP_SUBEVENT_SIGNALING_MEDIA_CODEC_OTHER_CONFIGURATION: indicates from remote chosen other then SBC media codec configuration
• A2DP_SUBEVENT_STREAM_ESTABLISHED: received when stream to a remote device is established
• A2DP_SUBEVENT_STREAM_STARTED: received when stream is started
• A2DP_SUBEVENT_STREAM_SUSPENDED: received when stream is paused
• A2DP_SUBEVENT_STREAM_STOPED: received when stream is aborted or stopped
• A2DP_SUBEVENT_STREAM_RELEASED: received when stream is released
• A2DP_SUBEVENT_SIGNALING_CONNECTION_RELEASED: received when signaling channel is disconnected

Parameters

callback