GNU Radio 3.5.3.2 C++ API
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00001 /* -*- c++ -*- */ 00002 /* 00003 * Copyright 2008 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 3, 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., 51 Franklin Street, 00020 * Boston, MA 02110-1301, USA. 00021 */ 00022 00023 #ifndef INCLUDED_GR_STRETCH_FF_H_ 00024 # define INCLUDED_GR_STRETCH_FF_H_ 00025 00026 #include <gr_core_api.h> 00027 #include <gr_sync_block.h> 00028 00029 /*! 00030 * \brief adjust y-range of an input vector by mapping to range 00031 * (max-of-input, stipulated-min). Primarily for spectral signature 00032 * matching by normalizing spectrum dynamic ranges. 00033 * \ingroup misc_blk 00034 */ 00035 00036 00037 class gr_stretch_ff; 00038 typedef boost::shared_ptr<gr_stretch_ff> gr_stretch_ff_sptr; 00039 00040 GR_CORE_API gr_stretch_ff_sptr gr_make_stretch_ff(float lo, size_t vlen); 00041 00042 class GR_CORE_API gr_stretch_ff : public gr_sync_block 00043 { 00044 friend GR_CORE_API gr_stretch_ff_sptr gr_make_stretch_ff(float lo, size_t vlen); 00045 00046 float d_lo; // the constant 00047 size_t d_vlen; 00048 gr_stretch_ff(float lo, size_t vlen); 00049 00050 public: 00051 float lo() const { return d_lo; } 00052 void set_lo(float lo) { d_lo = lo; } 00053 size_t vlen() const { return d_vlen; } 00054 00055 int work(int noutput_items, 00056 gr_vector_const_void_star &input_items, 00057 gr_vector_void_star &output_items); 00058 }; 00059 00060 #endif