CsvOutput< T > Class Template Reference

Stream Wrapper which can be used to print the values as readable ASCII to the screen to be analyzed in the Serial Plotter The frames are separated by a new line. The channels in one frame are separated by a ,. More...

#include <AudioOutput.h>

Inheritance diagram for CsvOutput< T >:

Public Member Functions
	CsvOutput (int buffer_size=DEFAULT_BUFFER_SIZE, bool active=true)
	CsvOutput (Print &out, int channels=2, int buffer_size=DEFAULT_BUFFER_SIZE, bool active=true)
	Constructor.
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 ()
int	availableForWrite () override
bool	begin () override
	(Re)start (e.g. if channels is set in constructor)
bool	begin (AudioInfo info) override
	Starts the processing with the defined number of channels.
bool	begin (int channels)
	Starts the processing with the defined number of channels.
virtual void	clearNotifyAudioChange ()
	Deletes all change notify subscriptions.
AudioInfo	defaultConfig ()
	Provides the default configuration.
AudioInfo	defaultConfig (RxTxMode mode)
const char *	delimiter ()
	Provides the current column delimiter.
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 info) override
	defines the number of channels
void	setDelimiter (const char *del)
	Defines an alternative (column) delimiter. The default is ,.
void	setNotifyActive (bool flag)
	Deactivate/Reactivate automatic AudioInfo updates: (default is active)
virtual size_t	write (const uint8_t *data, size_t len) override
	Writes the data - formatted as CSV - to the output stream.
virtual size_t	write (uint8_t ch) override
virtual void	writeSilence (size_t len)

Protected Member Functions
void	notifyAudioChange (AudioInfo info)
void	writeFrames (T *data_ptr, int frameCount)

Protected Attributes
int	_timeout = 10
AudioInfo	cfg
int	channel = 0
T *	data_ptr
const char *	delimiter_str = ","
bool	is_active = false
bool	is_notify_active = true
Vector< AudioInfoSupport * >	notify_vector
Print *	out_ptr = &Serial
SingleBuffer< uint8_t >	tmp {MAX_SINGLE_CHARS}
int	tmpPos = 0

Detailed Description

template<typename T>
class audio_tools::CsvOutput< T >

Stream Wrapper which can be used to print the values as readable ASCII to the screen to be analyzed in the Serial Plotter The frames are separated by a new line. The channels in one frame are separated by a ,.

Template Parameters

T

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, MP3DecoderMAD, EncodedAudioOutput, EncodedAudioStream, AACDecoderFDK, DecoderBasic, MP3DecoderHelix, 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()

template<typename T >

int availableForWrite ( )

inlineoverridevirtual

Reimplemented from AudioOutput.

begin() [1/2]

template<typename T >

bool begin ( )

inlineoverridevirtual

(Re)start (e.g. if channels is set in constructor)

Reimplemented from AudioOutput.

begin() [2/2]

template<typename T >

bool begin ( AudioInfo  info )

inlineoverridevirtual

Starts the processing with the defined number of channels.

Reimplemented from AudioOutput.

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 EncodedAudioOutput, and RTSPOutput.

setAudioInfo()

template<typename T >

virtual void setAudioInfo ( AudioInfo  info )

inlineoverridevirtual

defines the number of channels

Reimplemented from AudioOutput.

write()

template<typename T >

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

inlineoverridevirtual

Writes the data - formatted as CSV - to the output stream.

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/CoreAudio/AudioOutput.h