radiosonde_auto_rx/m10/AudioFile.h

/* 
 * File:   AudioFile.h
 * Author: Viproz
 * Used code from rs1729
 * Created on January 6, 2019, 10:23 AM
 */

#ifndef AUDIOFILE_H
#define AUDIOFILE_H
#define EOF_INT  0x1000000
#define AVG_NUM 5.

#include <stdio.h>
#include <string>
#include <cstring>
#include <cmath>
#include <vector>

class AudioFile {
public:
    AudioFile(std::string filename, int baudrate, int* errors);
    virtual ~AudioFile();

    int read_wav_header();

    int readSignedSample();
    int readSignedSampleAveraged();
    int readSignedSampleNormalized();
    int readSignedSampleAveragedNormalized();

    int averageSample(int sample);
    int normalizeSample(int sample);
    int averageNormalizeSample(int sample);

    void resetActiveSum();
    
    // Getters
    int getSampleRate() { return sample_rate; }
    double getSamplesPerBit() { return samplesPerBit; }
    
    // Setters
    void setTargetedChannel(int channel) { targetedChannel = channel; }
    void setBaudRate(int baudv) { baudRate = baudv; }
private:
    int findstr(char* buf, const char* str, int pos);
    
    double activeSum = 0;
    int targetedChannel = 0;
    int sample_rate = 0;
    int bits_sample = 0;
    int channels = 0;
    int baudRate;
    double samplesPerBit = 0;

    FILE *fp;
};

#endif /* AUDIOFILE_H */