iq_swap.cpp

/** I/Q swap **/
iq_swap_cc_sptr make_iq_swap_cc(bool enabled)
{
    return gnuradio::get_initial_sptr(new iq_swap_cc(enabled));
}

iq_swap_cc::iq_swap_cc(bool enabled)
    : gr_hier_block2 ("iq_swap_cc",
          gr_make_io_signature(1, 1, sizeof(gr_complex)),
          gr_make_io_signature(1, 1, sizeof(gr_complex)))
{
    d_c2f = gr_make_complex_to_float();
    d_f2c = gr_make_float_to_complex();

    connect(self(), 0, d_c2f, 0);
    if (enabled)
    {
        connect(d_c2f, 0, d_f2c, 1);
        connect(d_c2f, 1, d_f2c, 0);
    }
    else
    {
        connect(d_c2f, 0, d_f2c, 0);
        connect(d_c2f, 1, d_f2c, 1);
    }
    connect(d_f2c, 0, self(), 0);
}

iq_swap_cc::~iq_swap_cc()
{

}

/*! \brief Enabled or disable I/Q swapping. */
void iq_swap_cc::set_enabled(bool enabled)
{
#ifndef QT_NO_DEBUG_OUTPUT
    std::cout << "IQ swap: " << enabled << std::endl;
#endif

    lock();
    disconnect_all();
    connect(self(), 0, d_c2f, 0);
    if (enabled)
    {
        connect(d_c2f, 0, d_f2c, 1);
        connect(d_c2f, 1, d_f2c, 0);
    }
    else
    {
        connect(d_c2f, 0, d_f2c, 0);
        connect(d_c2f, 1, d_f2c, 1);
    }
    connect(d_f2c, 0, self(), 0);
    unlock();
}

iq_swap.h

iq_swap_cc_sptr make_iq_swap_cc(bool enabled);

/*! \brief Block to swap I and Q channels.
 *  \ingroup DSP
 */
class iq_swap_cc : public gr_hier_block2
{
    friend iq_swap_cc_sptr make_iq_swap_cc(bool enabled);

protected:
    iq_swap_cc(bool enabled);

public:
    ~iq_swap_cc();
    void set_enabled(bool enabled);

private:
    gr_complex_to_float_sptr d_c2f;
    gr_float_to_complex_sptr d_f2c;
};