senf/Packets/MPEGDVBBundle/MPESection.cc

   1 // $Id$
   2 //
   3 // Copyright (C) 2007
   4 // Fraunhofer Institute for Open Communication Systems (FOKUS)
   5 // Competence Center NETwork research (NET), St. Augustin, GERMANY
   6 //     Thorsten Horstmann <tho@berlios.de>
   7 //
   8 // This program is free software; you can redistribute it and/or modify
   9 // it under the terms of the GNU General Public License as published by
  10 // the Free Software Foundation; either version 2 of the License, or
  11 // (at your option) any later version.
  12 //
  13 // This program is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU General Public License
  19 // along with this program; if not, write to the
  20 // Free Software Foundation, Inc.,
  21 // 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  22
  23 /** \file
  24     \brief MPESection non-inline non-template implementation */
  25
  26 #include "MPESection.hh"
  27 //#include "MPESection.ih"
  28
  29 // Custom includes
  30 #include <iomanip>
  31 #include <boost/io/ios_state.hpp>
  32 #include <senf/Packets/DefaultBundle/LlcSnapPacket.hh>
  33 #include <senf/Packets/DefaultBundle/IPv4Packet.hh>
  34 #include <senf/Packets/DefaultBundle/IPv6Packet.hh>
  35
  36 #define prefix_
  37 //-/////////////////////////////////////////////////////////////////////////////////////////////////
  38
  39
  40 prefix_ boost::uint32_t senf::MPESectionParser::calcCrc()
  41     const
  42 {
  43     return std::for_each(
  44             data().begin(),
  45             boost::prior(data().end(), 4),
  46             crc32_t() ).checksum();
  47 }
  48
  49
  50 prefix_ void senf::MPESectionType::dump(packet p, std::ostream & os)
  51 {
  52     boost::io::ios_all_saver ias(os);
  53     os << "MPE Section:\n"
  54        << std::hex
  55        << senf::fieldName("table_id")                  << "0x" << unsigned(p->table_id()) << "\n"
  56        << senf::fieldName("section syntax indicator")  << p->section_syntax_indicator() << "\n"
  57        << senf::fieldName("private indicator")         << p->private_indicator() << "\n"
  58        << std::dec
  59        << senf::fieldName("section length")            << p->section_length() << "\n"
  60        << std::hex
  61        << senf::fieldName("MAC address 6")             << "0x" << unsigned(p->mac_addr_6()) << "\n"
  62        << senf::fieldName("MAC address 5")             << "0x" << unsigned(p->mac_addr_5()) << "\n"
  63        << senf::fieldName("payload scrambling ctrl")   << "0x" << p->payload_scrmbl_ctrl() << "\n"
  64        << senf::fieldName("address scrambling ctrl")   << "0x" << p-> addr_scrmbl_ctrl()  << "\n"
  65        << senf::fieldName("LLC/SNAP flag")             << "0x" << p->llc_snap_flag() << "\n"
  66        << senf::fieldName("current next indicator")    << "0x" << p->curr_next_indicator() << "\n"
  67        << senf::fieldName("section number")            << "0x" << unsigned(p->section_num()) << "\n"
  68        << senf::fieldName("last section number")       << "0x" << unsigned(p->last_section_num()) << "\n"
  69        << senf::fieldName("real time parameters")      << "\n"
  70        << senf::fieldName("  delta_t")                 << "0x" << unsigned(p->real_time_parameters().delta_t()) << "\n"
  71        << senf::fieldName("  table boundary")          << "0x" << unsigned(p->real_time_parameters().table_boundary()) << "\n"
  72        << senf::fieldName("  frame boundary")          << "0x" << unsigned(p->real_time_parameters().frame_boundary()) << "\n"
  73        << senf::fieldName("  address")                 << "0x" << unsigned(p->real_time_parameters().address()) << "\n"
  74        << std::dec
  75        << senf::fieldName("crc")                       << unsigned(p->crc()) << "\n";
  76 }
  77
  78 prefix_ senf::PacketParserBase::size_type senf::MPESectionType::initSize()
  79 {
  80     return parser::fixed_bytes + 32/8;
  81 }
  82
  83 prefix_ senf::PacketParserBase::size_type senf::MPESectionType::initHeadSize()
  84 {
  85     return parser::fixed_bytes;
  86 }
  87
  88 prefix_ senf::PacketInterpreterBase::factory_t senf::MPESectionType::nextPacketType(packet p)
  89 {
  90     if (p.data().size() > initSize()+1) {
  91         if (p->llc_snap_flag())
  92             return LlcSnapPacket::factory();
  93         if (p->ip_datagram_version().value() == 4)
  94             return IPv4Packet::factory();
  95         if (p->ip_datagram_version().value() == 6)
  96             return IPv6Packet::factory();
  97     }
  98     return no_factory();
  99 }
 100
 101 prefix_ void senf::MPESectionType::finalize(packet p)
 102 {
 103     p->llc_snap_flag() = p.next(nothrow) && p.next().is<LlcSnapPacket>() ? 1 : 0;
 104     p->section_length() = p.data().size() - 3;
 105     p->crc() = p->calcCrc();
 106 }
 107
 108 //-/////////////////////////////////////////////////////////////////////////////////////////////////
 109 #undef prefix_
 110
 111 \f
 112 // Local Variables:
 113 // mode: c++
 114 // fill-column: 100
 115 // c-file-style: "senf"
 116 // indent-tabs-mode: nil
 117 // ispell-local-dictionary: "american"
 118 // compile-command: "scons -u test"
 119 // comment-column: 40
 120 // End: