A more generic templated Converter which converts from a source type to a target type: You can use e.g. uint8_t, int8_t, int16_t, uint16_t, int24_t, uint32_t, int32_t, FloatAudio.AbstractMetaDat. This is quite handy because unsigned values and floating values are supported and you do not need to resort to use a Codec. More...

#include <AudioStreamsConverter.h>

Inheritance diagram for NumberFormatConverterStreamT< TFrom, TTo >:

Public Member Functions
	NumberFormatConverterStreamT (AudioOutput &print)

	NumberFormatConverterStreamT (AudioStream &stream)

	NumberFormatConverterStreamT (float gain)

	NumberFormatConverterStreamT (Print &print)

	NumberFormatConverterStreamT (Stream &stream)

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

virtual AudioInfo	audioInfo () override
	provides the actual input AudioInfo

AudioInfo	audioInfoOut () override

virtual int	available () override

virtual int	availableForWrite () override

bool	begin () override

virtual void	clearNotifyAudioChange ()
	Deletes all change notify subscriptions.

void	end () override

virtual void	flush () override

float	getByteFactor ()

virtual Print *	getPrint ()

virtual Stream *	getStream ()

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	resizeReadResultQueue (int size)
	Define the size of the interal read result queue: same as transformationReader().resizeResultQueue(size)

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

void	setBuffered (bool flag)

void	setGain (float value)
	Defines the gain (only available when buffered is true)

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

virtual void	setOutput (AudioOutput &print)

virtual void	setOutput (Print &print) override
	Defines/Changes the output target.

virtual void	setStream (AudioStream &stream)

virtual void	setStream (Stream &stream) override
	Defines/Changes the input & output.

virtual TransformationReader< ReformatBaseStream > &	transformationReader ()
	Provides access to the TransformationReader.

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

void	notifyAudioChange (AudioInfo info)

void	refillReadBuffer ()

void	setupReader ()

Protected Attributes
int	_timeout = 10

SingleBuffer< uint8_t >	buffer {0}

float	gain = 1.0f

AudioInfo	info

bool	is_buffered = true

bool	is_notify_active = true

Vector< AudioInfoSupport * >	notify_vector

Print *	p_print = nullptr

Stream *	p_stream = nullptr

TransformationReader< ReformatBaseStream >	reader

RingBuffer< uint8_t >	tmp_in {0}

RingBuffer< uint8_t >	tmp_out {0}

Detailed Description

template<typename TFrom, typename TTo>
class audio_tools::NumberFormatConverterStreamT< TFrom, TTo >

A more generic templated Converter which converts from a source type to a target type: You can use e.g. uint8_t, int8_t, int16_t, uint16_t, int24_t, uint32_t, int32_t, FloatAudio.AbstractMetaDat. This is quite handy because unsigned values and floating values are supported and you do not need to resort to use a Codec.

Author: Phil Schatzmann

Copyright: GPLv3

Template Parameters

TFrom	specifies the source data type
TTo	spesifies the target data type.

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 JupyterAudioT< T >, MozziStream, TimerCallbackAudioStream, PureDataStream, AdapterAudioOutputToAudioStream, GeneratedSoundStream< T >, GeneratedSoundStream< int16_t >, and InputMerge< T >.

◆ audioInfoOut()

template<typename TFrom , typename TTo >

AudioInfo audioInfoOut ( )

inlineoverridevirtual

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

Reimplemented from AudioInfoSupport.

◆ available()

template<typename TFrom , typename TTo >

virtual int available ( )

inlineoverridevirtual

Reimplemented from BaseStream.

◆ availableForWrite()

template<typename TFrom , typename TTo >

virtual int availableForWrite ( )

inlineoverridevirtual

Reimplemented from BaseStream.

◆ begin()

template<typename TFrom , typename TTo >

bool begin ( )

inlineoverridevirtual

Reimplemented from BaseStream.

◆ end()

void end ( )

inlineoverridevirtualinherited

Reimplemented from BaseStream.

◆ flush()

virtual void flush ( )

inlineoverridevirtualinherited

Reimplemented from Print.

Reimplemented in ResampleStream, BufferedTaskStream, and BufferedStream.

◆ getByteFactor()

template<typename TFrom , typename TTo >

float getByteFactor ( )

inlinevirtual

Implements ReformatBaseStream.

◆ operator bool()

virtual operator bool ( )

inlinevirtualinherited

Reimplemented in A2DPStream, Pipeline, I2SStream, and MemoryStream.

◆ readBytes()

template<typename TFrom , typename TTo >

size_t readBytes	(	uint8_t *	data,
		size_t	len
	)

inlineoverridevirtual

Reimplemented from AudioStream.

◆ setAudioInfo()

template<typename TFrom , typename TTo >

void setAudioInfo ( AudioInfo info )

inlineoverridevirtual

Defines the input AudioInfo.

Reimplemented from AudioStream.

◆ setBuffered()

template<typename TFrom , typename TTo >

void setBuffered ( bool flag )

inline

if set to true we do one big write, else we get a lot of single writes per sample

◆ setOutput()

virtual void setOutput ( Print & out )

inlineoverridevirtualinherited

Defines/Changes the output target.

Implements ModifyingStream.

Reimplemented in EncodedAudioStream, and FormatConverterStream.

◆ setStream()

virtual void setStream ( Stream & in )

inlineoverridevirtualinherited

Defines/Changes the input & output.

Implements ModifyingStream.

Reimplemented in FormatConverterStream, and EncodedAudioStream.

◆ write() [1/2]

template<typename TFrom , typename TTo >

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

inlineoverridevirtual

Reimplemented from AudioStream.

◆ write() [2/2]

virtual size_t write ( uint8_t ch )

inlineoverridevirtualinherited

Reimplemented in BufferedTaskStream, and BufferedStream.

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

src/AudioTools/CoreAudio/AudioStreamsConverter.h

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Member Function Documentation

◆ addNotifyAudioChange()

◆ audioInfo()

◆ audioInfoOut()

◆ available()

◆ availableForWrite()

◆ begin()

◆ end()

◆ flush()

◆ getByteFactor()

◆ operator bool()

◆ readBytes()

◆ setAudioInfo()

◆ setBuffered()

◆ setOutput()

◆ setStream()

◆ write() [1/2]

◆ write() [2/2]