audiogen.h

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#pragma once
 
#include <promeki/core/namespace.h>
#include <promeki/proav/audiodesc.h>
#include <promeki/core/list.h>
 
PROMEKI_NAMESPACE_BEGIN
 
class Audio;
 
class AudioGen {
    public:
                enum Type {
                        Silence = 0,   
                        Sine           
                };
 
                struct Config {
                        Type            type;           
                        float           freq;           
                        float           amplitude;      
                        float           phase;          
                        float           dutyCycle;      
                };
 
        AudioGen(const AudioDesc &desc);
 
        Audio generate(size_t samples);
 
                const Config &config(size_t chan) const {
                        return _chanConfig[chan];
                }
 
                void setConfig(size_t chan, Config val);
 
    private:
                AudioDesc       _desc;
                List<Config>    _chanConfig;
                size_t          _sampleCount = 0;
 
                void genSilence(size_t chan, float *data, size_t samples) const;
                void genSine(size_t chan, float *data, size_t samples) const;
};
 
PROMEKI_NAMESPACE_END