Advanced Audio Distribution Profile (A2DP) Sink

Advanced Audio Distribution Profile. More...

Modules
	A2DP Helper Functions
	Advanced Audio Distribution Profile.
	A2DP SBC Support
	Audio Insertion
	Bluetooth Audio Insert Application Programming Interface.

Functions
wiced_result_t	wiced_audio_sink_config_init (wiced_bt_a2dp_sink_audio_tuning_params_t *p_param)
	Wiced audio sink initialization. More...
wiced_result_t	wiced_audio_sink_configure (uint16_t handle, uint32_t is_master, uint32_t audio_route, uint16_t cp_type, wiced_bt_a2dp_codec_info_t *p_codec_info)
	API to configure the sink to perform SBC decoding and to route the decoded audio data over I2S or UART on starting the streaming. More...
wiced_result_t	wiced_audio_sink_reset (uint16_t handle)
	API to reset the sink on stopping the streaming. More...
wiced_result_t	wiced_audio_sink_mute (wiced_bool_t enable, uint16_t ramp_ms)
	To mute/unmute the audio. More...
wiced_bool_t	wiced_audio_set_i2s_out_sf (uint32_t out_sf)
	Function wiced_audio_set_i2s_out_sf. More...
uint8_t	wiced_bt_a2d_set_trace_level (uint8_t new_level)
uint8_t	wiced_bt_a2d_bits_set (uint8_t mask)
	Function wiced_bt_a2d_bits_set. More...
wiced_bt_a2d_status_t	wiced_bt_a2d_find_service (uint16_t service_uuid, BD_ADDR bd_addr, wiced_bt_a2d_sdp_db_params_t *p_db, wiced_bt_a2d_find_cback *p_cback)
	Function wiced_bt_a2d_find_service. More...

Detailed Description

Advanced Audio Distribution Profile.

Function Documentation

wiced_bool_t wiced_audio_set_i2s_out_sf

(

uint32_t

out_sf

)

Function wiced_audio_set_i2s_out_sf.

API to configure output I2S sampling frequency

Called by the application before starting the streaming

Parameters

out_sf

Desired output i2s sampling frequency (ex. 16000/32000/44100/48000)

Returns

wiced_bool_t TRUE in success case otherwise FALSE

NOTE : This API must be called before calling the API wiced_audio_sink_configure

wiced_result_t wiced_audio_sink_config_init

(

wiced_bt_a2dp_sink_audio_tuning_params_t *

p_param

)

Wiced audio sink initialization.

Parameters

p_cfg

pointer to the sink config structure

Returns

wiced_result_t (WICED_BT_XXX)

wiced_result_t wiced_audio_sink_configure	(	uint16_t	handle,
		uint32_t	is_master,
		uint32_t	audio_route,
		uint16_t	cp_type,
		wiced_bt_a2dp_codec_info_t *	p_codec_info
	)

API to configure the sink to perform SBC decoding and to route the decoded audio data over I2S or UART on starting the streaming.

Called by the application when the streaming is to be started

Parameters

handle	AVDT connection handle
is_master	Configure I2S Master/Slave
audio_route	- Audio route to be used to send the decoded audio data, I2S or UART
cp_type	Content protection type. Refer AVDT_CP_TYPE defined in wiced_bt_avdt.h
p_codec_info	Codec information

Returns

wiced_result_t (WICED_BT_XXX)

wiced_result_t wiced_audio_sink_mute	(	wiced_bool_t	enable,
		uint16_t	ramp_ms
	)

To mute/unmute the audio.

Called by the application to mute the audio when playing the music. Application shall this function to unmute also to restart playing the music

Parameters

enable	1 to mute, 0 to unmute
ramp_ms	ramp up/down time in milli seconds

Returns

wiced_result_t (WICED_BT_XXX)

wiced_result_t wiced_audio_sink_reset

(

uint16_t

handle

)

API to reset the sink on stopping the streaming.

Called by the application when the streaming is stopped

Parameters

handle

AVDT connection handle

Returns

wiced_result_t (WICED_BT_XXX)

uint8_t wiced_bt_a2d_bits_set

(

uint8_t

mask

)

Function wiced_bt_a2d_bits_set.

Check the number of bits set in a given mask (used to parse stream configuration masks)

Parameters

[in]

mask

: mask to check

Returns

A2D_SET_ONE_BIT, if one and only one bit is set A2D_SET_ZERO_BIT, if all bits clear A2D_SET_MULTL_BIT, if multiple bits are set

wiced_bt_a2d_status_t wiced_bt_a2d_find_service	(	uint16_t	service_uuid,
		BD_ADDR	bd_addr,
		wiced_bt_a2d_sdp_db_params_t *	p_db,
		wiced_bt_a2d_find_cback *	p_cback
	)

Function wiced_bt_a2d_find_service.

Performs Service Discovery and fetches SRC/SINK SDP Record Info. Information is returned for the first service record found on the server that matches the service UUID.There can only be one outstanding call to wiced_bt_a2d_find_service() at a time; the application must wait for the callback before it makes another call to the function.

Parameters

[in]	service_uuid	: Indicates SRC or SNK.
[in]	bd_addr	: BD address of the peer device.
[in]	p_db	: Pointer to the information to initialize the discovery database.
[in]	p_cback	: Pointer to the wiced_bt_a2d_find_service() callback function.

Returns

wiced_bt_a2d_status_t