Method Encoder_RSC_DB

src/Module/Encoder/RSC_DB/Encoder_RSC_DB.cpp:11–148

template<typename B>
Encoder_RSC_DB<B>::Encoder_RSC_DB(const int& K, const int& N, const std::string standard, const bool buffered_encoding)
  : Encoder<B>(K, N)
  , n_ff(standard == "DVB-RCS1" ? 3 : 4)
  , n_states(1 << n_ff)
  , buffered_encoding(buffered_encoding)
  , next_state(4, std::vector<int>(n_states, 0))
  , out_parity(4, std::vector<int>(n_states, 0))
{
    const std::string name = "Encoder_RSC_DB";
    this->set_name(name);
    for (auto& t : this->tasks)
        t->set_replicability(true);

    if (N != 2 * K)
    {
        std::stringstream message;
        message << "'N' has to be equal to 2 * 'K' ('N' = " << N << ", 'K' = " << K << ").";
        throw spu::tools::invalid_argument(__FILE__, __LINE__, __func__, message.str());
    }

    // poly: A,B,Y,W,Feed : all in binary
    if (standard == "DVB-RCS1")
    {
        poly = { { 1, 0, 0 },    // A
                 { 1, 1, 1 },    // B
                 { 1, 0, 1, 1 }, // Y
                 { 1, 0, 0, 1 }, // W
                 { 1, 0, 1 } };  // Feedback
        circ_states = { { 0, 6, 4, 2, 7, 1, 3, 5 }, { 0, 3, 7, 4, 5, 6, 2, 1 }, { 0, 5, 3, 6, 2, 7, 1, 4 },
                        { 0, 4, 1, 5, 6, 2, 7, 3 }, { 0, 2, 5, 7, 1, 3, 4, 6 }, { 0, 7, 6, 1, 3, 4, 5, 2 } };
    }
    else if (standard == "DVB-RCS2")
    {
        poly = { { 1, 0, 0, 0 }, { 1, 1, 0, 1 }, { 1, 1, 1, 0, 1 }, { 1, 0, 1, 1, 1 }, { 0, 0, 1, 1 } };

        circ_states = { { 0, 14, 3, 13, 7, 9, 4, 10, 15, 1, 12, 2, 8, 6, 11, 5 },
                        { 0, 11, 13, 6, 10, 1, 7, 12, 5, 14, 8, 3, 15, 4, 2, 9 },
                        { 0, 8, 9, 1, 2, 10, 11, 3, 4, 12, 13, 5, 6, 14, 15, 7 },
                        { 0, 3, 4, 7, 8, 11, 12, 15, 1, 2, 5, 6, 9, 10, 13, 14 },
                        { 0, 12, 5, 9, 11, 7, 14, 2, 6, 10, 3, 15, 13, 1, 8, 4 },
                        { 0, 4, 12, 8, 9, 13, 5, 1, 2, 6, 14, 10, 11, 15, 7, 3 },
                        { 0, 6, 10, 12, 5, 3, 15, 9, 11, 13, 1, 7, 14, 8, 4, 2 },
                        { 0, 7, 8, 15, 1, 6, 9, 14, 3, 4, 11, 12, 2, 5, 10, 13 },
                        { 0, 5, 14, 11, 13, 8, 3, 6, 10, 15, 4, 1, 7, 2, 9, 12 },
                        { 0, 13, 7, 10, 15, 2, 8, 5, 14, 3, 9, 4, 1, 12, 6, 11 },
                        { 0, 2, 6, 4, 12, 14, 10, 8, 9, 11, 15, 13, 5, 7, 3, 1 },
                        { 0, 9, 11, 2, 6, 15, 13, 4, 12, 5, 7, 14, 10, 3, 1, 8 },
                        { 0, 10, 15, 5, 14, 4, 1, 11, 13, 7, 2, 8, 3, 9, 12, 6 },
                        { 0, 15, 1, 14, 3, 12, 2, 13, 7, 8, 6, 9, 4, 11, 5, 10 } };
    }
    else
    {
        std::stringstream message;
        message << "'standard' has to be equal to DVB-RCS1 or DVB-RCS2 ('standard' = " << standard << ").";
        throw spu::tools::invalid_argument(__FILE__, __LINE__, __func__, message.str());
    }

    if ((int)poly.size() != 5)