arduino-audio-tools
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Merges multiple input channels. The input must be mono! So if you provide 2 mono channels you get a stereo signal as result with the left channel from channel 0 and the right from channel 1. More...
#include <AudioStreams.h>
Public Member Functions | |
InputMerge ()=default | |
Default constructor. | |
InputMerge (Stream &left, Stream &right) | |
Constructor for stereo signal from to mono input stream. | |
void | add (Stream &in, float weight=1.0) |
Adds a new input stream. | |
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 () |
provides the actual output AudioInfo: this is usually the same as audioInfo() unless we use a transforming stream | |
int | available () override |
Provides the min available data from all streams. | |
virtual int | availableForWrite () override |
virtual bool | begin () |
virtual bool | begin (AudioInfo info) |
virtual void | clearNotifyAudioChange () |
Deletes all change notify subscriptions. | |
void | end () override |
Remove all input streams. | |
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 newInfo) override |
Defines the input AudioInfo. | |
void | setNotifyActive (bool flag) |
Deactivate/Reactivate automatic AudioInfo updates: (default is active) | |
void | setWeight (int channel, float weight) |
Defines a new weight for the indicated channel: If you set it to 0 it is muted. | |
int | size () |
Number of stremams to which are mixed together = number of result channels. | |
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 () |
Protected Attributes | |
int | _timeout = 10 |
AudioInfo | info |
bool | is_notify_active = true |
Vector< AudioInfoSupport * > | notify_vector |
Vector< Stream * > | streams {10} |
RingBuffer< uint8_t > | tmp_in {0} |
RingBuffer< uint8_t > | tmp_out {0} |
Vector< float > | weights {10} |
Merges multiple input channels. The input must be mono! So if you provide 2 mono channels you get a stereo signal as result with the left channel from channel 0 and the right from channel 1.
T |
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inline |
Constructor for stereo signal from to mono input stream.
left | |
right |
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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.
provides the actual input AudioInfo
Implements AudioInfoSupport.
Reimplemented in JupyterAudioT< T >, MozziStream, TimerCallbackAudioStream, PureDataStream, AdapterAudioOutputToAudioStream, GeneratedSoundStream< T >, and GeneratedSoundStream< int16_t >.
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.
Provides the min available data from all streams.
Reimplemented from BaseStream.
Reimplemented from Print.
Reimplemented in UDPStream, A2DPStream, I2SCodecStream, AbstractURLStream, I2SStream, MeasuringStream, ProgressStream, and VolumeStream.
Reimplemented from BaseStream.
Remove all input streams.
Reimplemented from BaseStream.
Reimplemented from Print.
Reimplemented in ResampleStream, ICYStreamBuffered, BufferedTaskStream, and BufferedStream.
Reimplemented in A2DPStream, Pipeline, I2SStream, and MemoryStream.
Provides the data from all streams mixed together.
Reimplemented from AudioStream.
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, AudioKitStream, VBANStream, AnalogAudioArduino, Equilizer3Bands, AdapterAudioOutputToAudioStream, TimedStream, ProgressStream, FormatConverterStream, FadeStream, Pipeline::ModifyingStreamAdapter, PureDataStream, GeneratedSoundStream< T >, GeneratedSoundStream< int16_t >, NumberFormatConverterStreamT< TFrom, TTo >, NumberFormatConverterStream, Pipeline, and ResampleStream.
Implements BaseStream.
Reimplemented in I2SCodecStream, MozziStream, SPDIFOutput, I2SStream, A2DPStream, FaustStream< DSP >, TfLiteAudioStream, VS1053Stream, AnalogAudioStream, AudioEffectStreamT< T >, BufferedTaskStream, TimedStream, BufferedStream, MeasuringStream, ProgressStream, VolumeStream, TfLiteAudioStreamBase, and AnalogDriverESP32V1::IO16Bit.
Reimplemented in BufferedTaskStream, and BufferedStream.