GNU Radio Manual and C++ API Reference  3.7.9.2
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randomizer.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2006 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_ATSC_RANDOMIZER_H
24 #define INCLUDED_ATSC_RANDOMIZER_H
25 
26 #include <gnuradio/atsc/api.h>
27 #include <gnuradio/sync_block.h>
29 
30 class atsc_randomizer;
31 typedef boost::shared_ptr<atsc_randomizer> atsc_randomizer_sptr;
32 
33 ATSC_API atsc_randomizer_sptr atsc_make_randomizer();
34 
35 /*!
36  * \brief "Whiten" incoming mpeg transport stream packets
37  * \ingroup atsc
38  *
39  * input: atsc_mpeg_packet; output: atsc_mpeg_packet_no_sync
40  */
42 {
43  friend ATSC_API atsc_randomizer_sptr atsc_make_randomizer();
44 
45  atsci_randomizer d_rand;
46  bool d_field2; // user to init plinfo in output
47  int d_segno; // likewise
48 
50 
51 public:
52  int work (int noutput_items,
53  gr_vector_const_void_star &input_items,
54  gr_vector_void_star &output_items);
55 
56  void reset();
57 };
58 
59 
60 #endif /* INCLUDED_ATSC_RANDOMIZER_H */
#define ATSC_API
Definition: gr-atsc/include/gnuradio/atsc/api.h:30
virtual int work(int noutput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)=0
just like gr::block::general_work, only this arranges to call consume_each for you ...
std::vector< const void * > gr_vector_const_void_star
Definition: gnuradio-runtime/include/gnuradio/types.h:38
std::vector< void * > gr_vector_void_star
Definition: gnuradio-runtime/include/gnuradio/types.h:37
ATSC_API atsc_randomizer_sptr atsc_make_randomizer()
synchronous 1:1 input to output with historyOverride work to provide the signal processing implementa...
Definition: sync_block.h:37
"Whiten" incoming mpeg transport stream packetsinput: atsc_mpeg_packet; output: atsc_mpeg_packet_no_s...
Definition: randomizer.h:41
ATSC data "whitener".
Definition: randomizer_impl.h:36