Processor for which the encoded output is buffered in a queue. The decoding and audio output can be done on the second core by calling loop1();. More...

#include <SnapProcessorRP2040.h>

Inheritance diagram for SnapProcessorRP2040:

Public Member Functions
	SnapProcessorRP2040 (int bufferSizeBytes, int activationAtPercent=75)
	Default constructor.

	SnapProcessorRP2040 (SnapOutput &output, int bufferSizeBytes, int activationAtPercent=75)
	Default constructor.

bool	begin () override
	Sets up the output and the client.

const char *	clientName ()

bool	doLoop ()
	Call via SnapClient in Arduino Loop!

bool	doLoop1 () override
	Usually not used!

void	end (void) override

tv_t	getLatency ()

const char *	hostName ()

void	setAudioInfo (AudioInfo info)

void	setClient (Client &client)
	Defines an alternative client to the WiFiClient.

void	setClientName (const char *name)
	Defines the client name (default "libsnapcast")

void	setDecoder (AudioDecoder &dec)
	Defines the decoder class.

void	setFastLoop (bool flag)

void	setHostName (const char *name)
	Defines the host name (default CONFIG_SNAPCAST_CLIENT_NAME)

void	setMacAddress (const char *adr)

void	setOutput (AudioOutput &output)
	Defines the output class.

void	setServerIP (IPAddress address)

void	setServerPort (int port)

void	setSnapOutput (SnapOutput &out)
	Defines the SnapOutput implementation.

void	setStartOutput (bool start)

void	setStartTask (bool flag)

void	setVolumeFactor (float fact)
	Adjust volume by factor e.g. 1.5.

SnapOutput &	snapOutput ()

float	volume (void)
	Provides the volume (in the range of 0.0 to 1.0)

Protected Types
enum	loop_status_enum { LoopStart , LoopStep , LoopEnd }

Protected Member Functions
bool	audioBegin ()

void	audioEnd ()

bool	connectClient ()
	connects to the server: returns true if we are connected

void	initQueues (int bufferSizeBytes)
	store parameters provided by constructor

bool	isBufferActive ()

virtual void	processExt ()
	additional processing

bool	processLoopStep ()

bool	processLoopStepFast ()

bool	processMessageCodecHeader ()

bool	processMessageCodecHeaderExt (codec_type codecType)

bool	processMessageCodecHeaderOpus (codec_type codecType)

bool	processMessageCodecHeaderWav (codec_type codecType)

bool	processMessageLoop ()

bool	processMessageServerSettings ()

bool	processMessageTime ()

bool	processMessageWireChunk ()

bool	readBaseMessage ()

bool	readData ()

bool	resizeData ()

void	setMute (bool flag)

void	setVolume (float vol)

bool	wireChunk (SnapMessageWireChunk &wire_chunk_message)

size_t	writeAudio (const uint8_t *data, size_t size) override
	Writes the encoded audio data to a queue.

size_t	writeAudioInfo (SnapAudioHeader &header)

bool	writeHallo ()

bool	writeMessage ()

bool	writeTimedMessage ()

Protected Attributes
int	active_percent = 0

std::vector< int16_t >	audio

SnapMessageBase	base_message

std::vector< char >	base_message_serialized

audio_tools::BufferRP2040T< uint8_t >	buffer {1024, 0}

int	buffer_count = 0

uint16_t	channels = 2

const char *	client_name = "libsnapcast"

uint32_t	client_state_muted = 0

codec_type	codec_from_server = NO_CODEC

int16_t	frame_size = 512

bool	header_received = false

const char *	hostname = CONFIG_SNAPCAST_CLIENT_NAME

bool	http_task_start = true

int	id_counter = 0

bool	is_active = false

bool	is_fast_loop = false

bool	is_time_set = false

uint64_t	last_time_sync = 0

loop_status_enum	loop_status = LoopStart

const char *	mac_address = "00-00-00-00-00"

timeval	now

bool	output_start = false

Client *	p_client = nullptr

SnapOutput *	p_snap_output = nullptr

std::vector< char >	send_receive_buffer

IPAddress	server_ip

int	server_port = CONFIG_SNAPCAST_SERVER_PORT

SnapMessageServerSettings	server_settings_message

int	size = 0

audio_tools::BufferRP2040T< size_t >	size_queue {1, 0}

SnapTime &	snap_time = SnapTime::instance()

char *	start = nullptr

const char *	TAG = "SnapProcessorRP2040"

SnapMessageTime	time_message

Detailed Description

Processor for which the encoded output is buffered in a queue. The decoding and audio output can be done on the second core by calling loop1();.

Author: Phil Schatzmann

Version: 0.1

Date: 2024-02-26

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

src/api/SnapProcessorRP2040.h

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Detailed Description