GNU Radio 3.7.1 C++ API
derandomizer.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 #ifndef INCLUDED_ATSC_DERANDOMIZER_H
00023 #define INCLUDED_ATSC_DERANDOMIZER_H
00024 
00025 #include <gnuradio/atsc/api.h>
00026 #include <gnuradio/sync_block.h>
00027 #include <gnuradio/atsc/randomizer_impl.h>
00028 
00029 class atsc_derandomizer;
00030 typedef boost::shared_ptr<atsc_derandomizer> atsc_derandomizer_sptr;
00031 
00032 ATSC_API atsc_derandomizer_sptr atsc_make_derandomizer();
00033 
00034 /*!
00035  * \brief "dewhiten" incoming mpeg transport stream packets
00036  * \ingroup atsc
00037  *
00038  * input: atsc_mpeg_packet_no_sync; output: atsc_mpeg_packet;
00039  */
00040 class ATSC_API atsc_derandomizer : public gr::sync_block
00041 {
00042   friend ATSC_API atsc_derandomizer_sptr atsc_make_derandomizer();
00043 
00044   atsci_randomizer      d_rand;
00045 
00046   atsc_derandomizer();
00047 
00048 public:
00049   int work (int noutput_items,
00050             gr_vector_const_void_star &input_items,
00051             gr_vector_void_star &output_items);
00052 
00053   void reset();
00054 };
00055 
00056 
00057 #endif /* INCLUDED_ATSC_DERANDOMIZER_H */