arduino-audio-tools
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The Arduino Stream supports operations on single characters. This is usually not the best way to push audio information, but we will support it anyway - by using a buffer. On reads: if the buffer is empty it gets refilled. More...
#include <AudioStreams.h>
Public Member Functions | |
BufferedStream (Print &out, size_t buffer_size=1024) | |
BufferedStream (size_t buffer_size) | |
BufferedStream (size_t buffer_size, Print &out) | |
BufferedStream (size_t buffer_size, Stream &io) | |
BufferedStream (Stream &io, size_t buffer_size=1024) | |
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 | available () override |
Returns the available bytes in the buffer: to be avoided. | |
virtual int | availableForWrite () override |
virtual bool | begin () |
void | clear () |
Clears all the data in the buffer. | |
virtual void | clearNotifyAudioChange () |
Deletes all change notify subscriptions. | |
virtual void | end () |
void | flush () override |
empties the buffer | |
bool | isNotifyActive () |
Checks if the automatic AudioInfo update is active. | |
virtual | operator bool () |
int | peek () override |
peeks a byte - to be avoided | |
int | read () override |
reads a byte - to be avoided | |
size_t | readBytes (uint8_t *data, size_t len) override |
Use this method !! | |
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. | |
virtual void | setAudioInfo (AudioInfo newInfo) override |
Defines the input AudioInfo. | |
void | setNotifyActive (bool flag) |
Deactivate/Reactivate automatic AudioInfo updates: (default is active) | |
void | setOutput (Print &out) |
Defines/Changes the output target. | |
void | setStream (Print &out) |
void | setStream (Stream &io) |
Defines/Changes the input & output. | |
size_t | write (const uint8_t *data, size_t len) override |
Use this method: write an array. | |
size_t | write (uint8_t c) override |
writes a byte to the buffer | |
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) |
virtual size_t | readExt (uint8_t *data, size_t len) |
void | refill () |
void | refillReadBuffer () |
virtual size_t | writeExt (const uint8_t *data, size_t len) |
Protected Attributes | |
int | _timeout = 10 |
SingleBuffer< uint8_t > | buffer |
AudioInfo | info |
bool | is_notify_active = true |
Vector< AudioInfoSupport * > | notify_vector |
Stream * | p_in = nullptr |
Print * | p_out = nullptr |
RingBuffer< uint8_t > | tmp_in {0} |
RingBuffer< uint8_t > | tmp_out {0} |
The Arduino Stream supports operations on single characters. This is usually not the best way to push audio information, but we will support it anyway - by using a buffer. On reads: if the buffer is empty it gets refilled.
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inlinevirtualinherited |
Adds target to be notified about audio changes.
Reimplemented in CodecNOP, MP3DecoderMAD, EncodedAudioOutput, EncodedAudioStream, AACDecoderFDK, DecoderBasic, MP3DecoderHelix, OggContainerDecoder, Pipeline, and Pipeline::ModifyingStreamAdapter.
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inlineoverridevirtualinherited |
provides the actual input AudioInfo
Implements AudioInfoSupport.
Reimplemented in JupyterAudioT< T >, MozziStream, TimerCallbackAudioStream, PureDataStream, AdapterAudioOutputToAudioStream, GeneratedSoundStream< T >, GeneratedSoundStream< int16_t >, and InputMerge< T >.
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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.
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inlineoverridevirtual |
Returns the available bytes in the buffer: to be avoided.
Reimplemented from BaseStream.
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inlineoverridevirtualinherited |
Reimplemented from Print.
Reimplemented in UDPStream, A2DPStream, AudioFFTBase, I2SCodecStream, AbstractURLStream, URLStreamESP32, I2SStream, MeasuringStream, ProgressStream, and VolumeStream.
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inlinevirtualinherited |
Reimplemented in AudioOutputWithCallback, HLSStreamT< URLStream >, SPDIFOutput, VS1053Stream, WM8960Stream, ESPNowStream, TimerCallbackAudioStream, QueueStream< T >, QueueStream< uint8_t >, DynamicMemoryStream, AudioFFTBase, AnalogAudioArduino, AnalogAudioStream, MemoryStream, GeneratedSoundStream< T >, GeneratedSoundStream< int16_t >, FormatConverterStream, and Pipeline.
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inlinevirtualinherited |
Reimplemented in FaustStream< DSP >, HLSStreamT< URLStream >, I2SCodecStream, VS1053Stream, WM8960Stream, ESPNowStream, I2SStream, TimerCallbackAudioStream, QueueStream< T >, QueueStream< uint8_t >, AudioFFTBase, AudioKitStream, AnalogAudioStream, HttpRequest, ICYStreamT< T >, GeneratedSoundStream< T >, GeneratedSoundStream< int16_t >, InputMixer< T >, InputMerge< T >, and Pipeline.
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inlineoverridevirtual |
empties the buffer
Reimplemented from BaseStream.
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inlinevirtualinherited |
Reimplemented in A2DPStream, Pipeline, I2SStream, and MemoryStream.
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inlineoverridevirtual |
Use this method !!
Reimplemented from AudioStream.
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inlineoverridevirtualinherited |
Defines the input AudioInfo.
Implements AudioInfoSupport.
Reimplemented in VS1053Stream, WM8960Stream, I2SBitBang, ChannelFormatConverterStreamT< T >, ChannelFormatConverterStream, VolumeStream, MiniAudioStream, PortAudioStream, I2SCodecStream, MozziStream, SPDIFOutput, AudioLoRa, AnalogAudioStream, I2SStream, MeasuringStream, VolumeMeter, TimerCallbackAudioStream, AudioBLEStream, LoRaStream, AudioFFTBase, AudioKitStream, VBANStream, AnalogAudioArduino, Equalizer3Bands, AdapterAudioOutputToAudioStream, TimedStream, ProgressStream, FormatConverterStream, FadeStream, Pipeline::ModifyingStreamAdapter, PureDataStream, GeneratedSoundStream< T >, GeneratedSoundStream< int16_t >, NumberFormatConverterStreamT< TFrom, TTo >, NumberFormatConverterStream, Pipeline, and ResampleStream.
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inlinevirtual |
Defines/Changes the output target.
Implements ModifyingStream.
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inlinevirtual |
Defines/Changes the input & output.
Implements ModifyingStream.
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inlineoverridevirtual |
Use this method: write an array.
Reimplemented from AudioStream.
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inlineoverridevirtual |
writes a byte to the buffer
Reimplemented from BaseStream.