47686ca9c7
close https://github.com/livekit/client-sdk-flutter/issues/734 - [x] Windows - [x] Linux 
44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
#ifndef AUDIO_VISUALIZER_H
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#define AUDIO_VISUALIZER_H
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#include "fft_processor.h"
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#include <complex>
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#include <iostream>
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#include <vector>
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class AudioVisualizer {
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public:
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static constexpr double kDefaultSmoothingTimeConstant = 0.5;
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static constexpr int kDefaultBandsCount = 7;
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static constexpr float kDefaultMinFrequency = 10.0f; // Hz
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static constexpr float kDefaultMaxFrequency = 8000.0f; // Hz
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static constexpr float kDefaultMinDb = -100.0f;
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static constexpr float kDefaultMaxDb = -30.0f;
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public:
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AudioVisualizer(
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int bands_count = kDefaultBandsCount, bool is_centered = false,
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double smoothing_time_constant = kDefaultSmoothingTimeConstant,
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float min_frequency = kDefaultMinFrequency,
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float max_frequency = kDefaultMaxFrequency, float min_db = kDefaultMinDb,
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float max_db = kDefaultMaxDb);
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~AudioVisualizer();
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bool Process(const int16_t *audioData, unsigned int numSamples,
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float sampleRate, std::vector<float> &output);
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private:
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int bands_count_;
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bool is_centered_;
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float min_frequency_;
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float max_frequency_;
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float min_db_;
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float max_db_;
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double smoothing_time_constant_;
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std::vector<float> bands_;
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std::unique_ptr<FFTProcessor> fft_processor_;
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};
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#endif // AUDIO_VISUALIZER_H
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