Add AudioMathConstant_F32

master
boblark 1 year ago
parent 2541535f11
commit 92442b5699
  1. 13
      AudioMathConstant_F32.cpp
  2. 36
      AudioMathConstant_F32.h

@ -0,0 +1,13 @@
#include "AudioMathConstant_F32.h"
void AudioMathConstant_F32::update(void) {
audio_block_f32_t *block;
block = AudioStream_F32::allocate_f32();
if (!block) return;
for(int i=0; i<128; i++)
block->data[i] = constant;
AudioStream_F32::transmit(block);
AudioStream_F32::release(block);
}

@ -0,0 +1,36 @@
/*
* AudioMathConstant_F32
*
* Created: Bob Larkin, March 2023
* Purpose: Outputs a block of floating point numbers, all the same.
* Default value is 0.0f
*
* This outputs a single, constant stream of audio data (ie, it is mono)
*
* MIT License. use at your own risk.
*/
#ifndef _AudioMathConstant_F32_H
#define _AudioMathConstant_F32_H
#include "AudioStream_F32.h"
class AudioMathConstant_F32 : public AudioStream_F32
{
//GUI: inputs:0, outputs:1 //this line used for automatic generation of GUI node
public:
AudioMathConstant_F32(void) : AudioStream_F32(0, NULL) {};
AudioMathConstant_F32(const AudioSettings_F32 &settings) : AudioStream_F32(0, NULL) {
sample_rate_Hz = settings.sample_rate_Hz;
block_size = settings.audio_block_samples;
};
void setConstant(float32_t _constant) { constant = _constant; }
virtual void update(void);
private:
float sample_rate_Hz = AUDIO_SAMPLE_RATE;
uint16_t block_size = AUDIO_BLOCK_SAMPLES;
float32_t constant = 0.0f;
};
#endif
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