GNU Radio 3.6.5 C++ API

gr_float_to_int.h

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00001 /* -*- c++ -*- */
00002 /*
00003  * Copyright 2011,2012 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_FLOAT_TO_INT_H
00024 #define INCLUDED_GR_FLOAT_TO_INT_H
00025 
00026 #include <gr_core_api.h>
00027 #include <gr_sync_block.h>
00028 
00029 class gr_float_to_int;
00030 typedef boost::shared_ptr<gr_float_to_int> gr_float_to_int_sptr;
00031 
00032 GR_CORE_API gr_float_to_int_sptr
00033 gr_make_float_to_int (size_t vlen=1, float scale=1);
00034 
00035 /*!
00036  * \brief Convert stream of float to a stream of short
00037  *
00038  * \param vlen vector length of data streams.
00039  * \param scale a scalar multiplier to change the output signal scale.
00040  */
00041 
00042 class GR_CORE_API gr_float_to_int : public gr_sync_block
00043 {
00044  private:
00045   friend GR_CORE_API
00046     gr_float_to_int_sptr gr_make_float_to_int (size_t vlen, float scale);
00047   gr_float_to_int (size_t vlen, float scale);
00048 
00049   size_t d_vlen;
00050   float d_scale;
00051 
00052  public:
00053   /*!
00054    * Get the scalar multiplier value.
00055    */
00056   float scale() const;
00057 
00058   /*!
00059    * Set the scalar multiplier value.
00060    */
00061   void set_scale(float scale);
00062 
00063   virtual int work (int noutput_items,
00064                     gr_vector_const_void_star &input_items,
00065                     gr_vector_void_star &output_items);
00066 };
00067 
00068 
00069 #endif /* INCLUDED_GR_FLOAT_TO_INT_H */