GNU Radio 2.x: gr_rational_resampler_base_ccf.h Source File

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# gr_rational_resampler_base_ccf.h

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    00001 /* -*- c++ -*- */
    00002 /*
    00003  * Copyright 2005 Free Software Foundation, Inc.
    00004  *
    00005  * This file is part of GNU Radio
    00006  *
    00007  * GNU Radio is free software; you can redistribute it and/or modify
    00008  * it under the terms of the GNU General Public License as published by
    00009  * the Free Software Foundation; either version 2, or (at your option)
    00010  * any later version.
    00011  *
    00012  * GNU Radio is distributed in the hope that it will be useful,
    00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    00015  * GNU General Public License for more details.
    00016  *
    00017  * You should have received a copy of the GNU General Public License
    00018  * along with GNU Radio; see the file COPYING.  If not, write to
    00019  * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    00020  * Boston, MA 02111-1307, USA.
    00021  */
    00022
    00023 /*
    00024  * WARNING: This file is automatically generated by
    00025  * generate_gr_rational_resampler_base_XXX.py Any changes made to this
    00026  * file will be overwritten.
    00027  */
    00028
    00029 #ifndef INCLUDED_GR_RATIONAL_RESAMPLER_BASE_CCF_H
    00030 #define INCLUDED_GR_RATIONAL_RESAMPLER_BASE_CCF_H
    00031
    00032 #include <gr_block.h>
    00033
    00034 class gr_rational_resampler_base_ccf;
    00035 typedef boost::shared_ptr<gr_rational_resampler_base_ccf> gr_rational_resampler_base_ccf_sptr;
    00036 gr_rational_resampler_base_ccf_sptr
    00037 gr_make_rational_resampler_base_ccf (unsigned interpolation,
    00038                      unsigned decimation,
    00039                      const std::vector<float> &taps);
    00040
    00041 class gr_fir_ccf;
    00042
    00047 class gr_rational_resampler_base_ccf : public gr_block
    00048 {
    00049  private:
    00050   unsigned                      d_history;
    00051   unsigned                      d_interpolation, d_decimation;
    00052   unsigned                      d_ctr;
    00053   std::vector<float>    d_new_taps;
    00054   bool                          d_updated;
    00055   std::vector<gr_fir_ccf *> d_firs;
    00056
    00057   friend gr_rational_resampler_base_ccf_sptr
    00058   gr_make_rational_resampler_base_ccf (unsigned interpolation, unsigned decimation, const std::vector<float> &taps);
    00059
    00060
    00064   gr_rational_resampler_base_ccf (unsigned interpolation, unsigned decimation,
    00065           const std::vector<float> &taps);
    00066
    00067   void install_taps (const std::vector<float> &taps);
    00068
    00069  public:
    00070   ~gr_rational_resampler_base_ccf ();
    00071   unsigned history () const { return d_history; }
    00072   void  set_history (unsigned history) { d_history = history; }
    00073
    00074   unsigned interpolation() const { return d_interpolation; }
    00075   unsigned decimation() const { return d_decimation; }
    00076
    00077   void set_taps (const std::vector<float> &taps);
    00078
    00079   void forecast (int noutput_items, gr_vector_int &ninput_items_required);
    00080   int  general_work (int noutput_items,
    00081                      gr_vector_int &ninput_items,
    00082                      gr_vector_const_void_star &input_items,
    00083                      gr_vector_void_star &output_items);
    00084 };
    00085
    00086
    00087 #endif