#include <VBANStream.h>

Inheritance diagram for VBANStream:

Public Member Functions
virtual void	addNotifyAudioChange (AudioInfoSupport &bi)
	Adds target to be notified about audio changes.

virtual AudioInfo	audioInfo () override
	provides the actual input AudioInfo

virtual AudioInfo	audioInfoOut ()
	provides the actual output AudioInfo: this is usually the same as audioInfo() unless we use a transforming stream

int	available ()

int	availableForWrite ()

bool	begin ()

bool	begin (VBANConfig cfg)

virtual void	clearNotifyAudioChange ()
	Deletes all change notify subscriptions.

VBANConfig	defaultConfig (RxTxMode mode=TX_MODE)

virtual void	end ()

virtual void	flush () override

bool	isNotifyActive ()
	Checks if the automatic AudioInfo update is active.

virtual	operator bool ()

size_t	readBytes (uint8_t *data, size_t len) override

virtual size_t	readSilence (uint8_t *buffer, size_t length)
	Source to generate silence: just sets the buffer to 0.

virtual bool	removeNotifyAudioChange (AudioInfoSupport &bi)
	Removes a target in order not to be notified about audio changes.

void	setAudioInfo (AudioInfo info) override
	Defines the input AudioInfo.

void	setNotifyActive (bool flag)
	Deactivate/Reactivate automatic AudioInfo updates: (default is active)

void	setOutput (Print &out)

size_t	write (const uint8_t *data, size_t len) override

virtual size_t	write (uint8_t ch) override

virtual void	writeSilence (size_t len)
	Writes len bytes of silence (=0).

Protected Member Functions
bool	begin_rx ()

bool	begin_tx ()

bool	configure_tx ()

void	configure_vban (VBanSampleRates rate)

virtual int	not_supported (int out, const char *msg="")

void	notifyAudioChange (AudioInfo info)

void	receive_udp (AsyncUDPPacket &packet)
	VBAN adjusts the number of samples per packet according to sample rate. Assuming 16-bit PCM mono, sample rates 11025, 22050, 44100, and 88200 yield packets containing 64, 128, 256, and 256 samples per packet, respectively. The even-thousands sample rates below 48000 yield non-power-of-2 lengths. For example, sample rate 24000 yields 139 samples per packet. This VBAN->DMA->DAC method seems to require the dma buffer length be set equal to the number of samples in each VBAN packet. ESP32 I2S/DMA does not seem to handle non-power-of-2 buffer lengths well. Sample rate 24000 doesn't work reliably at all. Sample rate 32000 is stable but stutters. Recommend selecting from sample rates 11025, 22050, 44100, and above And set samplesPerPacket to 64 for 11025, 128 for 22050, or 256 for all else.

void	refillReadBuffer ()

void	start_wifi ()

const char *	toString (IPAddress adr)

int	vban_sample_rate ()

Detailed Description

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

Public Member Functions