#include <sf_audio_playback.h>

Public Member Functions
uint8_t stack [SF_AUDIO_PLAYBACK_STACK_SIZE]	BSP_ALIGN_VARIABLE_V2 (BSP_STACK_ALIGNMENT)

Data Fields
uint32_t	open
	Used to determine if driver is initialized.

void const *	p_next_buffer
	Pointer to next buffer (to be played when the current buffer completes).

uint32_t	next_length
	Length of next buffer (to be played when the current buffer completes).

sf_message_instance_t const *	p_message
	Pointer to message control block.

TX_QUEUE *	p_queue
	Queue subscribed to SF_MESSAGE_EVENT_CLASS_AUDIO events.

sf_audio_playback_hw_instance_t const *	p_lower_lvl_hw
	Hardware API's used.

sf_audio_playback_instance_ctrl_t *	p_stream [SF_AUDIO_PLAYBACK_CFG_MAX_STREAMS]
	Stream specific data.

TX_THREAD	thread
	Main audio thread.

TX_EVENT_FLAGS_GROUP	flags
	Event flags used to end wait in audio thread.

sf_audio_playback_data_type_t	data_type
	Sample format required by the hardware.

uint8_t	volume
	Volume from 0 (muted) to 255 (maximum, default on open).

uint8_t	buffer_index
	Which ping pong buffer to use.

int16_t	samples [2][SF_AUDIO_PLAYBACK_CFG_BUFFER_SIZE_BYTES/sizeof(int16_t)]

volatile bool	playing
	State of audio instance (currently playing if true)

TX_MUTEX	common_instance_mutex
	Mutex for internal use.

Detailed Description

Audio common instance control block. DO NOT INITIALIZE. Initialization the first time sf_audio_playback_api_t::open is called. Shared by all streams.

Member Function Documentation

uint8_t stack [SF_AUDIO_PLAYBACK_STACK_SIZE] sf_audio_playback_common_instance_ctrl_t::BSP_ALIGN_VARIABLE_V2 ( BSP_STACK_ALIGNMENT )

Stack for audio thread.

int16_t sf_audio_playback_common_instance_ctrl_t::samples[2][SF_AUDIO_PLAYBACK_CFG_BUFFER_SIZE_BYTES/sizeof(int16_t)]

Ping pong buffers, used to store converted data during transfer.

The documentation for this struct was generated from the following file: