Method process

plugins/cubesat_support/geoscan/module_geoscan_decoder.cpp:54–110

    }

    void GEOSCANDecoderModule::process()
    {
        if (input_data_type == DATA_FILE)
            filesize = getFilesize(d_input_file);
        else
            filesize = 0;
        if (input_data_type == DATA_FILE)
            data_in = std::ifstream(d_input_file, std::ios::binary);

        data_out = std::ofstream(d_output_file_hint + ".frm", std::ios::binary);
        d_output_files.push_back(d_output_file_hint + ".frm");

        std::string directory = d_output_file_hint.substr(0, d_output_file_hint.rfind('/')) + "/";

        logger->info("Using input frames " + d_input_file);
        logger->info("Decoding to " + d_output_file_hint + ".frm");

        time_t lastTime = 0;
        const uint8_t* pn9_scrambling = GEOSCANDecoderModule::PN9_MASK_Generator();
        while (input_data_type == DATA_FILE ? !data_in.eof() : input_active.load())
        {
            // Read buffer
            if (input_data_type == DATA_FILE)
                data_in.read((char *)input_buffer, 256);
            else
                input_fifo->read((uint8_t *)input_buffer, 256);

            auto frames = deframer->work((uint8_t *)input_buffer, 256 / 8);

            for (auto &framebuf : frames)
            {
                for (int i = 0; i < (int)d_frame_length; i++)
                    framebuf[4 + i] ^= pn9_scrambling[i];

                uint16_t crc_frm1 = crc_check.compute(&framebuf[4], (int)(d_frame_length-2));
                uint16_t crc_frm2 = framebuf[4 + (int)(d_frame_length-2) + 0] << 8 | framebuf[4 + (int)(d_frame_length-2) + 1];

                if (crc_frm1 == crc_frm2)
                {
                    data_out.write((char *)framebuf.data(), framebuf.size());
                    frm_cnt++;
                }
            }

            progress = data_in.tellg();

            if (time(NULL) % 10 == 0 && lastTime != time(NULL))
            {
                lastTime = time(NULL);
                logger->info("Progress " + std::to_string(round(((double)progress / (double)filesize) * 1000.0) / 10.0) + "%%, Frames " + std::to_string(frm_cnt));
            }
        }

        logger->info("Decoding finished");

        data_in.close();
    }