int main() {
    // allocate memory for arrays
    unsigned char header[8];        // data header
    unsigned char payload[64];      // data payload
    float complex y[1340];          // frame samples

    // create frame generator
    framegen64 fg = framegen64_create();
    framegen64_print(fg);

    // create frame synchronizer using default properties
    framesync64 fs = framesync64_create(mycallback, NULL);
    framesync64_print(fs);

    // initialize header, payload
    unsigned int i;
    for (i=0; i<8; i++)
        header[i] = i;
    for (i=0; i<64; i++)
        payload[i] = rand() & 0xff;

    // EXECUTE generator and assemble the frame
    framegen64_execute(fg, header, payload, y);

    // EXECUTE synchronizer and receive the entire frame at once
    framesync64_execute(fs, y, 1340);

    // DESTROY objects
    framegen64_destroy(fg);
    framesync64_destroy(fs);

    printf("done.\n");
    return 0;
}
Exemplo n.º 2
0
// Helper function to keep code base small
void benchmark_framesync64(
    struct rusage *_start,
    struct rusage *_finish,
    unsigned long int *_num_iterations)
{
    *_num_iterations /= 128;
    unsigned long int i;

    framegen64 fg = framegen64_create();
    framegen64_print(fg);

    // frame data
    unsigned char header[8] = {0, 1, 2, 3, 4, 5, 6, 7};
    unsigned char payload[64];
    // initialize payload
    for (i=0; i<64; i++)
        payload[i] = rand() & 0xff;
    framedata fd = {0, 0, 0};

    // create framesync64 object
    framesync64 fs = framesync64_create(callback,(void*)&fd);
    framesync64_print(fs);

    // generate the frame
    //unsigned int frame_len = framegen64_getframelen(fg);
    unsigned int frame_len = LIQUID_FRAME64_LEN;
    float complex frame[frame_len];
    framegen64_execute(fg, header, payload, frame);

    // add some noise
    for (i=0; i<frame_len; i++)
        frame[i] += 0.01f*(randnf() + _Complex_I*randnf()) * M_SQRT1_2;

    // 
    // start trials
    //
    getrusage(RUSAGE_SELF, _start);
    for (i=0; i<(*_num_iterations); i++) {
        framesync64_execute(fs, frame, frame_len);
    }
    getrusage(RUSAGE_SELF, _finish);


    fd.num_frames_tx = *_num_iterations;
    printf("  frames detected/valid/transmitted  :   %6u / %6u / %6u\n",
            fd.num_frames_detected,
            fd.num_frames_valid,
            fd.num_frames_tx);

    framegen64_destroy(fg);
    framesync64_destroy(fs);
}