GNU Radio 3.6.5 C++ API

gr_pack_k_bits_bb.h

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00001 /* -*- c++ -*- */
00002 /*
00003  * Copyright 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_PACK_K_BITS_BB_H
00024 #define INCLUDED_GR_PACK_K_BITS_BB_H
00025 
00026 #include <gr_core_api.h>
00027 #include <gr_sync_decimator.h>
00028 
00029 class gr_pack_k_bits_bb;
00030 typedef boost::shared_ptr<gr_pack_k_bits_bb> gr_pack_k_bits_bb_sptr;
00031 GR_CORE_API gr_pack_k_bits_bb_sptr gr_make_pack_k_bits_bb (unsigned k);
00032 
00033 class gr_pack_k_bits_bb;
00034 
00035 /*!
00036  * \brief Converts a stream of bytes with 1 bit in the LSB to a byte with  k relevent bits.
00037  */
00038 class GR_CORE_API gr_pack_k_bits_bb : public gr_sync_decimator
00039 {
00040  private:
00041   friend GR_CORE_API gr_pack_k_bits_bb_sptr gr_make_pack_k_bits_bb (unsigned k);
00042 
00043   gr_pack_k_bits_bb (unsigned k);
00044 
00045   unsigned d_k;    // number of relevent bits to pack from k input bytes
00046   
00047  public:
00048   ~gr_pack_k_bits_bb ();
00049 
00050   int work (int noutput_items,
00051             gr_vector_const_void_star &input_items,
00052             gr_vector_void_star &output_items);
00053 };
00054 
00055 #endif