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.
28 #include <gr_io_signature.h>
29 #include <atsc_types.h>
31 static const int INTR = ATSC_MPEG_PKT_LENGTH;
36 return atsc_pad_sptr(new atsc_pad());
40 : gr_sync_decimator("atsc_pad",
41 gr_make_io_signature(1, 1, sizeof(unsigned char)),
42 gr_make_io_signature(1, 1, sizeof(atsc_mpeg_packet)),
49 atsc_pad::forecast (int noutput_items, gr_vector_int &ninput_items_required)
51 unsigned ninputs = ninput_items_required.size();
52 for (unsigned i = 0; i < ninputs; i++)
53 ninput_items_required[i] = noutput_items * ATSC_MPEG_PKT_LENGTH;
58 atsc_pad::work (int noutput_items,
59 gr_vector_const_void_star &input_items,
60 gr_vector_void_star &output_items)
62 const unsigned char *in = (const unsigned char *) input_items[0];
63 atsc_mpeg_packet *out = (atsc_mpeg_packet *) output_items[0];
67 for (i = 0; i < noutput_items; i++){
68 for (int j = 0; j < ATSC_MPEG_PKT_LENGTH; j++)
69 out[i].data[j] = in[i * ATSC_MPEG_PKT_LENGTH + j];