blob: bbe2ec69aab3a2bcd6b7bb7e723d654f2e9a8374 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
/* -*- c++ -*- */
/*
* Copyright 2002 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* GNU Radio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef _ATSC_CONSTS_H_
#define _ATSC_CONSTS_H_
static const double ATSC_SYMBOL_RATE = 4.5e6 / 286 * 684; // ~10.76 MHz
static const double ATSC_DATA_SEGMENT_RATE = ATSC_SYMBOL_RATE / 832; // ~12.935 kHz
static const int ATSC_MPEG_DATA_LENGTH = 187;
static const int ATSC_MPEG_PKT_LENGTH = 188; // sync + data
static const int ATSC_MPEG_RS_ENCODED_LENGTH = 207;
static const int ATSC_DATA_SEGMENT_LENGTH = 832; // includes 4 sync symbols at beginning
static const int ATSC_DSEGS_PER_FIELD = 312; // regular data segs / field
static const int MPEG_SYNC_BYTE = 0x47;
static const int MPEG_TRANSPORT_ERROR_BIT = 0x80; // top bit of byte after SYNC
#endif // _ATSC_CONSTS_H_
|
