Tegmen C Library

Tegmen is a lightweight, static C library for FT8 (and eventually FT4) encoding and decoding. It wraps the core Fortran routines from WSJT-X into a simple, easy-to-use C API.

Quick Start

#include "tegmen.h"
 
void decode_callback(float sync, int snr, float dt, float freq,
                     const char* decoded, int nap, float qual, void* user_data) {
    printf("Decoded: %s (SNR: %d dB)\n", decoded, snr);
}
 
int main() {
    // Encode a message
    float samples[151680];
    int nsamples = 0;
    if (tegmen_ft8_encode("CQ W4HO DN70", samples, &nsamples) == TEGMEN_SUCCESS) {
        printf("Encoded %d samples\n", nsamples);
    }
    
    // Decode audio samples
    int16_t audio[180000];  // 15 seconds at 12 kHz
    // ... fill audio buffer ...
    tegmen_ft8_decode(audio, 180000, decode_callback, NULL);
    
    return 0;
}

See also

API Reference