freqalert.h

#ifndef _INCLUDE_FREQALERT_H_
#define _INCLUDE_FREQALERT_H_


#include <sys/types.h>
#include <ctype.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <string.h>

#include <math.h>
#include <malloc.h>
#include <alsa/asoundlib.h>
#include <time.h>
#include <fftw3.h>

#define MAX_N_ALERTS 99
#define MAX_LINE 200

typedef struct {
    int     freq_duration;
    int     alert_volume_level;
    int     triggered_count;
    int     flood_seconds;
    int     flood_count;

    time_t  triggered_time;

    double  freq_low;
    double  freq_high;

    char    alert_event_cmd[MAX_LINE];        /*Command to execute on Alert*/

} alert_t ;

typedef struct {
    unsigned int    sample_rate;
    int             channels;
    int             volume_level;           /* threshold for sound-detection*/
    int             volume_triggers;        /* how many times the signal should be above the trigger level*/
    char            device[MAX_LINE];
    int             show_help;
    int             show_info;
    int             verbosity;
    int             n_alerts;
    int             run_in_background;      /* wether to run in the background or not*/
    fftw_plan       ff_plan;
    double          *ff_in;
    fftw_complex    *ff_out;
    int             bin_max;
    int             bin_min;
    float           bin_size;
    int             buf_items;
    int             frames_per_buffer;
    int16_t         *input_buffer;
    long            buf_size;
    char            configfile[MAX_LINE];             /* configuration file*/
    snd_pcm_t       *devhandle;
    alert_t         alert_info[MAX_N_ALERTS];

}  config_parms_t;


#endif