3 * Copyright 2006 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
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)
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.
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.
22 #ifndef INCLUDED_ATSC_DERANDOMIZER_H
23 #define INCLUDED_ATSC_DERANDOMIZER_H
25 #include <gr_sync_block.h>
26 #include <atsci_randomizer.h>
28 class atsc_derandomizer;
29 typedef boost::shared_ptr<atsc_derandomizer> atsc_derandomizer_sptr;
31 atsc_derandomizer_sptr atsc_make_derandomizer();
34 * \brief "dewhiten" incoming mpeg transport stream packets
37 * input: atsc_mpeg_packet_no_sync; output: atsc_mpeg_packet;
39 class atsc_derandomizer : public gr_sync_block
41 friend atsc_derandomizer_sptr atsc_make_derandomizer();
43 atsci_randomizer d_rand;
48 int work (int noutput_items,
49 gr_vector_const_void_star &input_items,
50 gr_vector_void_star &output_items);
56 #endif /* INCLUDED_ATSC_DERANDOMIZER_H */