WebSocketOutput Class Reference

A simple wrapper class that lets you use the standard Arduino Print class output commands to send audio data over a WebSocket connection. Uses https://github.com/Links2004/arduinoWebSockets. More...

#include <WebSocketOutput.h>

Inheritance diagram for WebSocketOutput:

Public Member Functions
	WebSocketOutput (WebSocketsClient &ws)
	Constructor which defines an alternative WebSocket object. By default we use WebSocket.
	WebSocketOutput (WebSocketsServer &ws)
	Constructor which defines an alternative WebSocket object. By default we use WebSocket.
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 ()
virtual int	availableForWrite () override
virtual bool	begin ()
virtual bool	begin (AudioInfo info)
virtual void	clearNotifyAudioChange ()
	Deletes all change notify subscriptions.
virtual void	end ()
virtual void	flush ()
virtual bool	isDeletable ()
	If true we need to release the related memory in the destructor.
bool	isNotifyActive ()
	Checks if the automatic AudioInfo update is active.
virtual	operator bool ()
virtual bool	removeNotifyAudioChange (AudioInfoSupport &bi)
	Removes a target in order not to be notified about audio changes.
virtual void	setAudioInfo (AudioInfo newInfo) override
	Defines the input AudioInfo.
void	setNotifyActive (bool flag)
	Deactivate/Reactivate automatic AudioInfo updates: (default is active)
void	setTargetNo (int clientNo)
	For WebSocketServer we can define an individual recipient!
void	setWebSocket (WebSocketsClient &ws)
	Defines an alternative WebSocket object. By default we use WebSocket.
void	setWebSocket (WebSocketsServer &ws)
	Defines an alternative WebSocket object. By default we use WebSocket.
size_t	write (const uint8_t *data, size_t len) override
	Replys will be sent to the initial remote caller.
virtual size_t	write (uint8_t ch) override
virtual void	writeSilence (size_t len)

Protected Member Functions
void	notifyAudioChange (AudioInfo info)

Protected Attributes
int	_timeout = 10
AudioInfo	cfg
int	clientNo = -1
bool	is_active = false
bool	is_notify_active = true
Vector< AudioInfoSupport * >	notify_vector
WebSocketsClient *	p_ws = nullptr
WebSocketsServer *	p_ws_server = nullptr
SingleBuffer< uint8_t >	tmp {MAX_SINGLE_CHARS}
int	tmpPos = 0

Detailed Description

A simple wrapper class that lets you use the standard Arduino Print class output commands to send audio data over a WebSocket connection. Uses https://github.com/Links2004/arduinoWebSockets.

Author

Phil Schatzmann

Copyright

GPLv3

Member Function Documentation

addNotifyAudioChange()

virtual void addNotifyAudioChange ( AudioInfoSupport &  bi )

inlinevirtualinherited

Adds target to be notified about audio changes.

Reimplemented in CodecNOP, EncodedAudioOutput, EncodedAudioStream, AACDecoderFDK, DecoderBasic, MP3DecoderHelix, MP3DecoderMAD, OggContainerDecoder, Pipeline, and Pipeline::ModifyingStreamAdapter.

audioInfo()

virtual AudioInfo audioInfo ( )

inlineoverridevirtualinherited

provides the actual input AudioInfo

Implements AudioInfoSupport.

Reimplemented in AdapterPrintToAudioOutput, and AdapterAudioStreamToAudioOutput.

audioInfoOut()

virtual AudioInfo audioInfoOut ( )

inlinevirtualinherited

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

Reimplemented in PureDataStream, PWMAudioOutput, ChannelFormatConverterStreamT< T >, ChannelFormatConverterStream, NumberFormatConverterStreamT< TFrom, TTo >, NumberFormatConverterStream, FormatConverterStream, Pipeline, and ResampleStream.

availableForWrite()

virtual int availableForWrite ( )

inlineoverridevirtualinherited

Reimplemented from Print.

Reimplemented in RTSPOutput.

begin() [1/2]

virtual bool begin ( )

inlinevirtualinherited

Reimplemented in AudioOutputWithCallback, EncodedAudioOutput, OggContainerOutput, MetaDataFilter, and CsvOutput< T >.

begin() [2/2]

virtual bool begin ( AudioInfo  info )

inlinevirtualinherited

Reimplemented in AudioESP32ULP, CsvOutput< T >, and EncodedAudioOutput.

end()

virtual void end ( )

inlinevirtualinherited

Reimplemented in EncodedAudioOutput, and OggContainerOutput.

flush()

virtual void flush ( )

inlinevirtualinherited

Reimplemented from Print.

isDeletable()

virtual bool isDeletable ( )

inlinevirtualinherited

If true we need to release the related memory in the destructor.

Reimplemented in AdapterPrintToAudioOutput, and AdapterAudioStreamToAudioOutput.

operator bool()

virtual operator bool ( )

inlinevirtualinherited

Reimplemented in RTSPOutput, and EncodedAudioOutput.

setAudioInfo()

virtual void setAudioInfo ( AudioInfo  info )

inlineoverridevirtualinherited

Defines the input AudioInfo.

Implements AudioInfoSupport.

Reimplemented in ChannelsSelectOutput, AdapterPrintToAudioOutput, MultiOutput, AdapterAudioStreamToAudioOutput, CsvOutput< T >, PWMAudioOutput, and EncodedAudioOutput.

write()

size_t write ( const uint8_t *  data, size_t  len  )

inlineoverridevirtual

Replys will be sent to the initial remote caller.

Implements AudioOutput.

writeSilence()

virtual void writeSilence ( size_t  len )

inlinevirtualinherited

Writes n 0 values (= silence)

Parameters

len

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

• src/AudioTools/Communication/WebSocketOutput.h