GNU Radio 3.5.1 C++ API
gr_feedforward_agc_cc.h
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00001 /* -*- c++ -*- */
00002 /*
00003  * Copyright 2006 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_FEEDFORWARD_AGC_CC_H
00024 #define INCLUDED_GR_FEEDFORWARD_AGC_CC_H
00025 
00026 #include <gr_core_api.h>
00027 #include <gr_sync_block.h>
00028 
00029 class gr_feedforward_agc_cc;
00030 typedef boost::shared_ptr<gr_feedforward_agc_cc> gr_feedforward_agc_cc_sptr;
00031 
00032 GR_CORE_API gr_feedforward_agc_cc_sptr
00033 gr_make_feedforward_agc_cc(int nsamples, float reference = 1.0);
00034 
00035 /*!
00036  * \brief Non-causal AGC which computes required gain based on max absolute value over nsamples
00037  * \ingroup level_blk
00038  */
00039 class GR_CORE_API gr_feedforward_agc_cc : public gr_sync_block
00040 {
00041   friend GR_CORE_API gr_feedforward_agc_cc_sptr 
00042   gr_make_feedforward_agc_cc(int nsamples, float reference);
00043   
00044   int           d_nsamples;
00045   float         d_reference;
00046 
00047   gr_feedforward_agc_cc(int nsamples, float reference);
00048 
00049  public:
00050   ~gr_feedforward_agc_cc();
00051 
00052   int work(int noutput_items,
00053            gr_vector_const_void_star &input_items,
00054            gr_vector_void_star &output_items);
00055 };
00056 
00057 #endif /* INCLUDED_GR_FEEDFORWARD_AGC_CC_H */