3 Band Equalizer inspired from https://www.musicdsp.org/en/latest/Filters/236-3-band-equaliser.html More...
#include <Equalizer.h>
Classes | |
| struct | EQSTATE |
Public Member Functions | |
| Equalizer3Bands (AudioOutput &out) | |
| Equalizer3Bands (AudioStream &stream) | |
| Equalizer3Bands (Print &out) | |
| Equalizer3Bands (Stream &in) | |
| 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 |
| int | availableForWrite () override |
| virtual bool | begin () |
| bool | begin (ConfigEqualizer3Bands &config) |
| virtual void | clearNotifyAudioChange () |
| Deletes all change notify subscriptions. | |
| ConfigEqualizer3Bands & | config () |
| ConfigEqualizer3Bands & | defaultConfig () |
| virtual void | end () |
| virtual void | flush () override |
| bool | isNotifyActive () |
| Checks if the automatic AudioInfo update is active. | |
| virtual | operator bool () |
| size_t | readBytes (uint8_t *data, size_t len) override |
| Provides the data from all streams mixed together. | |
| 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 info) override |
| Defines the input AudioInfo. | |
| void | setNotifyActive (bool flag) |
| Deactivate/Reactivate automatic AudioInfo updates: (default is active) | |
| void | setOutput (Print &out) override |
| Defines/Changes the output target. | |
| void | setStream (Stream &io) override |
| Defines/Changes the input & output. | |
| 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 | |
| void | filterSamples (const uint8_t *data, size_t len) |
| virtual int | not_supported (int out, const char *msg="") |
| void | notifyAudioChange (AudioInfo info) |
| void | refillReadBuffer () |
| float | sample (EQSTATE &es, float sample) |
Protected Attributes | |
| int | _timeout = 10 |
| ConfigEqualizer3Bands | cfg |
| AudioInfo | info |
| bool | is_notify_active = true |
| int | max_state_count = 0 |
| Vector< AudioInfoSupport * > | notify_vector |
| ConfigEqualizer3Bands * | p_cfg = &cfg |
| Print * | p_print = nullptr |
| Stream * | p_stream = nullptr |
| struct audio_tools::Equalizer3Bands::EQSTATE * | state = nullptr |
| RingBuffer< uint8_t > | tmp_in {0} |
| RingBuffer< uint8_t > | tmp_out {0} |
| const float | vsa = (1.0 / 4294967295.0) |
Detailed Description
3 Band Equalizer inspired from https://www.musicdsp.org/en/latest/Filters/236-3-band-equaliser.html
Member Function Documentation
◆ addNotifyAudioChange()
|
inlinevirtualinherited |
Adds target to be notified about audio changes.
Reimplemented in CodecNOP, MP3DecoderMAD, EncodedAudioOutput, EncodedAudioStream, AACDecoderFDK, DecoderBasic, MP3DecoderHelix, OggContainerDecoder, Pipeline, and Pipeline::ModifyingStreamAdapter.
◆ 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()
|
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.
◆ available()
|
inlineoverridevirtual |
Reimplemented from BaseStream.
◆ availableForWrite()
|
inlineoverridevirtual |
Reimplemented from BaseStream.
◆ begin()
|
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.
◆ end()
|
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.
◆ flush()
|
inlineoverridevirtualinherited |
Reimplemented from Print.
Reimplemented in ResampleStream, BufferedTaskStream, and BufferedStream.
◆ operator bool()
|
inlinevirtualinherited |
Reimplemented in A2DPStream, Pipeline, I2SStream, and MemoryStream.
◆ readBytes()
|
inlineoverridevirtual |
Provides the data from all streams mixed together.
Reimplemented from AudioStream.
◆ setAudioInfo()
|
inlineoverridevirtual |
Defines the input AudioInfo.
Reimplemented from AudioStream.
◆ setOutput()
|
inlineoverridevirtual |
Defines/Changes the output target.
Implements ModifyingStream.
◆ setStream()
|
inlineoverridevirtual |
Defines/Changes the input & output.
Implements ModifyingStream.
◆ write() [1/2]
|
inlineoverridevirtual |
Reimplemented from AudioStream.
◆ write() [2/2]
|
inlineoverridevirtualinherited |
Reimplemented in BufferedTaskStream, and BufferedStream.
The documentation for this class was generated from the following file:
- src/AudioTools/CoreAudio/AudioFilter/Equalizer.h
