00001 /* -*- c++ -*- */ 00002 /* 00003 * Copyright 2004 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 #ifndef INCLUDED_GR_HILBERT_FC_H 00024 #define INCLUDED_GR_HILBERT_FC_H 00025 00026 #include <gr_sync_block.h> 00027 #include <gr_io_signature.h> 00028 #include <gr_types.h> 00029 00030 class gr_hilbert_fc; 00031 typedef boost::shared_ptr<gr_hilbert_fc> gr_hilbert_fc_sptr; 00032 00033 // public constructor 00034 gr_hilbert_fc_sptr gr_make_hilbert_fc (unsigned int ntaps); 00035 00036 00037 class gr_fir_fff; 00038 00047 class gr_hilbert_fc : public gr_sync_block 00048 { 00049 public: 00050 ~gr_hilbert_fc (); 00051 00052 int work (int noutput_items, 00053 gr_vector_const_void_star &input_items, 00054 gr_vector_void_star &output_items); 00055 00056 protected: 00057 gr_hilbert_fc (unsigned int ntaps); 00058 00059 private: 00060 unsigned int d_ntaps; 00061 gr_fir_fff *d_hilb; 00062 00063 friend gr_hilbert_fc_sptr gr_make_hilbert_fc (unsigned int ntaps); 00064 }; 00065 00066 00067 00068 #endif /* INCLUDED_GR_HILBERT_FC_H */