include/lib/dvb/lowlevel/pat.h

   1
   2 /*
   3  * PROGRAM ASSOCIATION TABLE
   4  *
   5  * Copyright (C) 1998  Thomas Mirlacher
   6  *
   7  * This program 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 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program 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 this program; if not, write to the Free Software
  19  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  *
  21  * The author may be reached as dent@cosy.sbg.ac.at, or
  22  * Thomas Mirlacher, Jakob-Haringerstr. 2, A-5020 Salzburg,
  23  * Austria
  24  *
  25  *------------------------------------------------------------
  26  *
  27  */
  28
  29 #ifndef __PAT_H__
  30 #define __PAT_H__
  31
  32 #include <sys/types.h>
  33
  34 #define PAT_LEN 8
  35
  36 typedef struct {
  37         u_char table_id                         :8;
  38
  39 #if BYTE_ORDER == BIG_ENDIAN
  40         u_char section_syntax_indicator         :1;
  41         u_char dummy                            :1;     // has to be 0
  42         u_char                                  :2;
  43         u_char section_length_hi                :4;
  44 #else
  45         u_char section_length_hi                :4;
  46         u_char                                  :2;
  47         u_char dummy                            :1;     // has to be 0
  48         u_char section_syntax_indicator         :1;
  49 #endif
  50
  51         u_char section_length_lo                :8;
  52
  53         u_char transport_stream_id_hi           :8;
  54         u_char transport_stream_id_lo           :8;
  55
  56 #if BYTE_ORDER == BIG_ENDIAN
  57         u_char                                  :2;
  58         u_char version_number                   :5;
  59         u_char current_next_indicator           :1;
  60 #else
  61         u_char current_next_indicator           :1;
  62         u_char version_number                   :5;
  63         u_char                                  :2;
  64 #endif
  65
  66         u_char section_number                   :8;
  67         u_char last_section_number              :8;
  68 } pat_t;
  69
  70 #define PAT_PROG_LEN 4
  71
  72 typedef struct {
  73         u_char program_number_hi                :8;
  74         u_char program_number_lo                :8;
  75
  76 #if BYTE_ORDER == BIG_ENDIAN
  77         u_char                                  :3;
  78         u_char network_pid_hi                   :5;
  79 #else
  80         u_char network_pid_hi                   :5;
  81         u_char                                  :3;
  82 #endif
  83
  84         u_char network_pid_lo                   :8;
  85         /* or program_map_pid (if prog_num=0)*/
  86 } pat_prog_t;
  87
  88 #endif