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   1 /* -*- c++ -*- */
   2 /*
   3  * Copyright 2005 Free Software Foundation, Inc.
   4  *
   5  * This file is part of GNU Radio
   6  *
   7  * GNU Radio is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 3, or (at your option)
  10  * any later version.
  11  *
  12  * GNU Radio is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with GNU Radio; see the file COPYING.  If not, write to
  19  * the Free Software Foundation, Inc., 51 Franklin Street,
  20  * Boston, MA 02110-1301, USA.
  21  */
  22
  23 #ifndef INCLUDED_GR_FAKE_CHANNEL_CODER_PP_H
  24 #define INCLUDED_GR_FAKE_CHANNEL_CODER_PP_H
  25
  26 #include <gr_sync_block.h>
  27
  28 class gr_fake_channel_encoder_pp;
  29 typedef boost::shared_ptr<gr_fake_channel_encoder_pp> gr_fake_channel_encoder_pp_sptr;
  30
  31 gr_fake_channel_encoder_pp_sptr
  32 gr_make_fake_channel_encoder_pp(int input_vlen, int output_vlen);
  33
  34 /*!
  35  * \brief pad packet with alternating 1,0 pattern.
  36  * \ingroup coding_blk
  37  *
  38  * input: stream of byte vectors; output: stream of byte vectors
  39  */
  40 class gr_fake_channel_encoder_pp : public gr_sync_block
  41 {
  42   int   d_input_vlen;
  43   int   d_output_vlen;
  44
  45   gr_fake_channel_encoder_pp(int input_vlen, int output_vlen);
  46
  47   friend gr_fake_channel_encoder_pp_sptr
  48          gr_make_fake_channel_encoder_pp(int input_vlen, int output_vlen);
  49
  50 public:
  51   ~gr_fake_channel_encoder_pp();
  52
  53   int work (int noutput_items,
  54             gr_vector_const_void_star &input_items,
  55             gr_vector_void_star &output_items);
  56 };
  57
  58 // ------------------------------------------------------------------------
  59
  60 class gr_fake_channel_decoder_pp;
  61 typedef boost::shared_ptr<gr_fake_channel_decoder_pp> gr_fake_channel_decoder_pp_sptr;
  62
  63 gr_fake_channel_decoder_pp_sptr
  64 gr_make_fake_channel_decoder_pp(int input_vlen, int output_vlen);
  65
  66 /*!
  67  * \brief remove fake padding from packet
  68  * \ingroup coding_blk
  69  *
  70  * input: stream of byte vectors; output: stream of byte vectors
  71  */
  72 class gr_fake_channel_decoder_pp : public gr_sync_block
  73 {
  74   int   d_input_vlen;
  75   int   d_output_vlen;
  76
  77   gr_fake_channel_decoder_pp(int input_vlen, int output_vlen);
  78
  79   friend gr_fake_channel_decoder_pp_sptr
  80          gr_make_fake_channel_decoder_pp(int input_vlen, int output_vlen);
  81
  82 public:
  83   ~gr_fake_channel_decoder_pp();
  84
  85   int work (int noutput_items,
  86             gr_vector_const_void_star &input_items,
  87             gr_vector_void_star &output_items);
  88 };
  89
  90 #endif /* INCLUDED_GR_FAKE_CHANNEL_CODER_PP_H */