Function main

cpp_package/examples/ml/src/eeg_metrics.cpp:20–85

int main (int argc, char *argv[])
{
    BoardShim::enable_dev_board_logger ();

    struct BrainFlowInputParams params;
    int board_id = 0;
    if (!parse_args (argc, argv, &params, &board_id))
    {
        return -1;
    }
    int res = 0;

    BoardShim *board = new BoardShim (board_id, params);

    try
    {
        board->prepare_session ();
        board->start_stream ();

#ifdef _WIN32
        Sleep (5000);
#else
        sleep (5);
#endif

        board->stop_stream ();
        BrainFlowArray<double, 2> data = board->get_board_data ();
        board->release_session ();
        std::cout << data << std::endl;
        // calc band powers
        int sampling_rate = BoardShim::get_sampling_rate ((int)BoardIds::SYNTHETIC_BOARD);
        std::vector<int> eeg_channels = BoardShim::get_eeg_channels (board_id);
        std::pair<double *, double *> bands =
            DataFilter::get_avg_band_powers (data, eeg_channels, sampling_rate, true);

        struct BrainFlowModelParams mindfulness_params (
            (int)BrainFlowMetrics::MINDFULNESS, (int)BrainFlowClassifiers::DEFAULT_CLASSIFIER);
        MLModel mindfulness_model (mindfulness_params);
        mindfulness_model.prepare ();
        std::cout << "Mindfulness :" << mindfulness_model.predict (bands.first, 5)[0] << std::endl;
        mindfulness_model.release ();

        struct BrainFlowModelParams restfulness_params (
            (int)BrainFlowMetrics::RESTFULNESS, (int)BrainFlowClassifiers::DEFAULT_CLASSIFIER);
        MLModel restfulness_model (restfulness_params);
        restfulness_model.prepare ();
        std::cout << "Restfulness :" << restfulness_model.predict (bands.first, 5)[0] << std::endl;
        restfulness_model.release ();

        delete[] bands.first;
        delete[] bands.second;
    }
    catch (const BrainFlowException &err)
    {
        BoardShim::log_message ((int)LogLevels::LEVEL_ERROR, err.what ());
        res = err.exit_code;
        if (board->is_prepared ())
        {