include/lib/dvb/lowlevel/mpe.h

   1
   2 /*
   3  * MULTI PROTOCOL ENCAPSULATION
   4  *
   5  * Copyright (C) 1999 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 __MPE_H__
  30 #define __MPE_H__
  31
  32 #include <sys/types.h>
  33
  34 #define MPE_TABLE_ID    0x3E
  35 #define MPE_HEADER_SIZE 12
  36
  37 typedef struct mpe_header_struct {
  38         u_char table_id                 : 8;
  39
  40 #if BYTE_ORDER == BIG_ENDIAN
  41         u_char section_syntax_indicator : 1;
  42         u_char private_indicator        : 1;
  43         u_char                          : 2;
  44         u_char section_length_hi        : 4;
  45 #else
  46         u_char section_length_hi        : 4;
  47         u_char                          : 2;
  48         u_char private_indicator        : 1;
  49         u_char section_syntax_indicator : 1;
  50 #endif
  51
  52         u_char section_length_lo        : 8;
  53
  54         u_char MAC_address_6            : 8;
  55
  56         u_char MAC_address_5            : 8;
  57
  58 #if BYTE_ORDER == BIG_ENDIAN
  59         u_char                          : 2;
  60         u_char payload_scrambling_control: 2;
  61         u_char address_scrambling_control: 2;
  62         u_char LLC_SNAP_flag            : 1;
  63         u_char current_next_indicator   : 1;
  64 #else
  65         u_char current_next_indicator   : 1;
  66         u_char LLC_SNAP_flag            : 1;
  67         u_char address_scrambling_control: 2;
  68         u_char payload_scrambling_control: 2;
  69         u_char                          : 2;
  70 #endif
  71
  72         u_char section_number           : 8;
  73
  74         u_char last_section_number      : 8;
  75
  76         u_char MAC_address_4            : 8;
  77
  78         u_char MAC_address_3            : 8;
  79
  80         u_char MAC_address_2            : 8;
  81
  82         u_char MAC_address_1            : 8;
  83 } mpe_hdr_t;
  84
  85 #endif