arduino-audio-tools
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Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
audio_tools::NullStream Class Reference

The Arduino Stream which provides silence and simulates a null device when used as audio target. More...

#include <AudioStreams.h>

Inheritance diagram for audio_tools::NullStream:
audio_tools::BufferedStream audio_tools::AudioStream Stream audio_tools::AudioBaseInfoDependent audio_tools::AudioBaseInfoSource Print

Public Member Functions

 NullStream (bool measureWrite=false)
 
bool begin (AudioBaseInfo info, int opt=0)
 
AudioBaseInfo defaultConfig (int opt=0)
 
void setAudioInfo (AudioBaseInfo info) override
 
void setNotifyAudioChange (AudioBaseInfoDependent &bi) override
 Define object which need to be notified if the basinfo is changing. More...
 
- Public Member Functions inherited from audio_tools::BufferedStream
 BufferedStream (size_t buffer_size)
 
virtual int available () override
 Returns the available bytes in the buffer: to be avoided. More...
 
void clear ()
 Clears all the data in the buffer.
 
virtual void flush () override
 empties the buffer More...
 
virtual int peek () override
 peeks a byte - to be avoided More...
 
virtual int read () override
 reads a byte - to be avoided More...
 
size_t readBytes (uint8_t *data, size_t length) override
 Use this method !! More...
 
virtual size_t write (const uint8_t *data, size_t len) override
 Use this method: write an array. More...
 
virtual size_t write (uint8_t c) override
 writes a byte to the buffer More...
 
- Public Member Functions inherited from audio_tools::AudioStream
 AudioStream (AudioStream const &)=delete
 
virtual AudioBaseInfo audioInfo () override
 
virtual int availableForWrite () override
 
virtual bool begin ()
 
virtual void end ()
 
virtual void flush ()
 
 operator bool ()
 
AudioStreamoperator= (AudioStream const &)=delete
 
virtual size_t readBytes (char *buffer, size_t length)
 
virtual size_t readBytes (uint8_t *buffer, size_t length)=0
 
virtual void setAudioInfo (AudioBaseInfo info)
 
virtual void setNotifyAudioChange (AudioBaseInfoDependent &bi)
 
virtual size_t write (const uint8_t *buffer, size_t size)=0
 
- Public Member Functions inherited from Stream
virtual int available ()=0
 
bool find (char target)
 
bool find (const char *target)
 
bool find (const char *target, size_t length)
 
bool find (const uint8_t *target)
 
bool find (const uint8_t *target, size_t length)
 
bool findUntil (const char *target, const char *terminator)
 
bool findUntil (const char *target, size_t targetLen, const char *terminate, size_t termLen)
 
bool findUntil (const uint8_t *target, const char *terminator)
 
bool findUntil (const uint8_t *target, size_t targetLen, const char *terminate, size_t termLen)
 
unsigned long getTimeout (void)
 
float parseFloat (LookaheadMode lookahead=SKIP_ALL, char ignore=NO_IGNORE_CHAR)
 
long parseInt (LookaheadMode lookahead=SKIP_ALL, char ignore=NO_IGNORE_CHAR)
 
virtual int peek ()=0
 
virtual int read ()=0
 
size_t readBytes (char *buffer, size_t length)
 
size_t readBytes (uint8_t *buffer, size_t length)
 
size_t readBytesUntil (char terminator, char *buffer, size_t length)
 
size_t readBytesUntil (char terminator, uint8_t *buffer, size_t length)
 
String readString ()
 
String readStringUntil (char terminator)
 
void setTimeout (unsigned long timeout)
 
- Public Member Functions inherited from Print
virtual int availableForWrite ()
 
void clearWriteError ()
 
virtual void flush ()
 
int getWriteError ()
 
size_t print (char)
 
size_t print (const __FlashStringHelper *)
 
size_t print (const char[])
 
size_t print (const Printable &)
 
size_t print (const String &)
 
size_t print (double, int=2)
 
size_t print (int, int=DEC)
 
size_t print (long long, int=DEC)
 
size_t print (long, int=DEC)
 
size_t print (unsigned char, int=DEC)
 
size_t print (unsigned int, int=DEC)
 
size_t print (unsigned long long, int=DEC)
 
size_t print (unsigned long, int=DEC)
 
size_t println (char)
 
size_t println (const __FlashStringHelper *)
 
size_t println (const char[])
 
size_t println (const Printable &)
 
size_t println (const String &s)
 
size_t println (double, int=2)
 
size_t println (int, int=DEC)
 
size_t println (long long, int=DEC)
 
size_t println (long, int=DEC)
 
size_t println (unsigned char, int=DEC)
 
size_t println (unsigned int, int=DEC)
 
size_t println (unsigned long long, int=DEC)
 
size_t println (unsigned long, int=DEC)
 
size_t println (void)
 
size_t write (const char *buffer, size_t size)
 
size_t write (const char *str)
 
virtual size_t write (const uint8_t *buffer, size_t size)
 
virtual size_t write (uint8_t)=0
 
- Public Member Functions inherited from audio_tools::AudioBaseInfoDependent
virtual AudioBaseInfo audioInfo ()=0
 
virtual void setAudioInfo (AudioBaseInfo info)=0
 
virtual bool validate (AudioBaseInfo &info)
 
virtual void setNotifyAudioChange (AudioBaseInfoDependent &bi)=0
 

Protected Member Functions

virtual size_t readExt (uint8_t *data, size_t len) override
 
virtual size_t writeExt (const uint8_t *data, size_t len) override
 
- Protected Member Functions inherited from audio_tools::BufferedStream
virtual size_t readExt (uint8_t *data, size_t length)=0
 
void refill ()
 
virtual size_t writeExt (const uint8_t *data, size_t len)=0
 
- Protected Member Functions inherited from audio_tools::AudioStream
virtual int not_supported (int out)
 
- Protected Member Functions inherited from Stream
int findMulti (struct MultiTarget *targets, int tCount)
 
float parseFloat (char ignore)
 
long parseInt (char ignore)
 
int peekNextDigit (LookaheadMode lookahead, bool detectDecimal)
 
int timedPeek ()
 
int timedRead ()
 
- Protected Member Functions inherited from Print
void setWriteError (int err=1)
 

Protected Attributes

bool is_measure
 
unsigned long timeout = 0
 
size_t total = 0
 
- Protected Attributes inherited from audio_tools::BufferedStream
SingleBuffer< uint8_t > * buffer = nullptr
 
- Protected Attributes inherited from audio_tools::AudioStream
AudioBaseInfo info
 
AudioBaseInfoDependentp_notify =nullptr
 
- Protected Attributes inherited from Stream
unsigned long _startMillis
 
unsigned long _timeout
 

Detailed Description

The Arduino Stream which provides silence and simulates a null device when used as audio target.

Author
Phil Schatzmann

Member Function Documentation

◆ readExt()

virtual size_t audio_tools::NullStream::readExt ( uint8_t *  data,
size_t  len 
)
inlineoverrideprotectedvirtual

◆ setAudioInfo()

void audio_tools::NullStream::setAudioInfo ( AudioBaseInfo  info)
inlineoverridevirtual

Reimplemented from audio_tools::AudioStream.

◆ setNotifyAudioChange()

void audio_tools::NullStream::setNotifyAudioChange ( AudioBaseInfoDependent bi)
inlineoverridevirtual

Define object which need to be notified if the basinfo is changing.

Reimplemented from audio_tools::AudioStream.

◆ writeExt()

virtual size_t audio_tools::NullStream::writeExt ( const uint8_t *  data,
size_t  len 
)
inlineoverrideprotectedvirtual

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