tegmen.h

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#ifndef TEGMEN_H
#define TEGMEN_H
 
#include <stdint.h>
#include <stddef.h>
 
#ifdef __cplusplus
extern "C" {
#endif


#define TEGMEN_SUCCESS 0
#define TEGMEN_ERROR_INVALID_MESSAGE -1
#define TEGMEN_ERROR_ENCODING_FAILED -2
#define TEGMEN_ERROR_DECODING_FAILED -3
#define TEGMEN_ERROR_INVALID_PARAMETERS -4



#define TEGMEN_SAMPLE_RATE 12000

#define TEGMEN_FT8_MESSAGE_LEN 37

#define TEGMEN_FT4_MESSAGE_LEN 37



typedef void (*tegmen_decode_callback_t)(
    float sync,      
    int snr,         
    float dt,        
    float freq,      
    const char* decoded,  
    int nap,         
    float qual,      
    void* user_data  
);



int tegmen_ft8_encode(const char* message, float* samples, int* nsamples);

int tegmen_ft8_decode(const int16_t* samples, int nsamples,
                     tegmen_decode_callback_t callback, void* user_data);

int tegmen_ft4_encode(const char* message, float* samples, int* nsamples);

int tegmen_ft4_decode(const int16_t* samples, int nsamples,
                      tegmen_decode_callback_t callback, void* user_data);

 
#ifdef __cplusplus
}
#endif
 
#endif /* TEGMEN_H */