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 "../../Packets/DefaultBundle/LlcSnapPacket.hh"
  33 #include "../../Packets/DefaultBundle/IPv4Packet.hh"
  34 #include "../../Packets/DefaultBundle/IPv6Packet.hh"
  35
  36 #define prefix_
  37 ///////////////////////////////cc.p////////////////////////////////////////
  38
  39 prefix_ boost::uint32_t senf::MPESectionParser::calcCrc()
  40     const
  41 {
  42     return std::for_each(
  43             data().begin(),
  44             boost::prior(data().end(), 4),
  45             crc32_t() ).checksum();
  46 }
  47
  48
  49 prefix_ void senf::MPESectionType::dump(packet p, std::ostream & os)
  50 {
  51     boost::io::ios_all_saver ias(os);
  52     os << "MPE Section:\n"
  53        << std::hex
  54        << "  table_id: 0x" << unsigned(p->table_id()) << "\n"
  55        << "  section_syntax_indicator: " << p->section_syntax_indicator() << "\n"
  56        << "  private_indicator: " << p->private_indicator() << "\n"
  57        << std::dec
  58        << "  section_length: " << p->section_length() << "\n"
  59        << std::hex
  60        << "  MAC_address_6: 0x" << unsigned(p->mac_addr_6()) << "\n"
  61        << "  MAC_address_5: 0x" << unsigned(p->mac_addr_5()) << "\n"
  62        << "  payload_scrambling_control: 0x" << p->payload_scrmbl_ctrl() << "\n"
  63        << "  address_scrambling_control: 0x" << p-> addr_scrmbl_ctrl()  << "\n"
  64        << "  LLC_SNAP_flag: 0x" << p->llc_snap_flag() << "\n"
  65        << "  current_next_indicator: 0x" << p->curr_next_indicator() << "\n"
  66        << "  section_number: 0x" << unsigned(p->section_num()) << "\n"
  67        << "  last_section_number: 0x" << unsigned(p->last_section_num()) << "\n"
  68        << "  real_time_parameters: \n"
  69        << "    delta_t: 0x" << unsigned(p->real_time_parameters().delta_t()) << "\n"
  70        << "    table_boundary: 0x" << unsigned(p->real_time_parameters().table_boundary()) << "\n"
  71        << "    frame_boundary: 0x" << unsigned(p->real_time_parameters().frame_boundary()) << "\n"
  72        << "    address: 0x" << unsigned(p->real_time_parameters().address()) << "\n"
  73        << std::dec
  74        << "  CRC: " << unsigned(p->crc()) << "\n";
  75 }
  76
  77 prefix_ senf::PacketParserBase::size_type senf::MPESectionType::initSize()
  78 {
  79     return parser::fixed_bytes + 32/8;
  80 }
  81
  82 prefix_ senf::PacketParserBase::size_type senf::MPESectionType::initHeadSize()
  83 {
  84     return parser::fixed_bytes;
  85 }
  86
  87 prefix_ senf::PacketInterpreterBase::factory_t senf::MPESectionType::nextPacketType(packet p)
  88 {
  89     if (p.data().size() > initSize()+1) {
  90         if (p->llc_snap_flag())
  91             return LlcSnapPacket::factory();
  92         if (p->ip_datagram_version().value() == 4)
  93             return IPv4Packet::factory();
  94         if (p->ip_datagram_version().value() == 6)
  95             return IPv6Packet::factory();
  96     }
  97     return no_factory();
  98 }
  99
 100 prefix_ void senf::MPESectionType::finalize(packet p)
 101 {
 102     p->llc_snap_flag() = p.next(nothrow) && p.next().is<LlcSnapPacket>() ? 1 : 0;
 103     p->section_length() = p.data().size() - 3;
 104     p->crc() = p->calcCrc();
 105 }
 106
 107 ///////////////////////////////cc.e////////////////////////////////////////
 108 #undef prefix_
 109
 110 \f
 111 // Local Variables:
 112 // mode: c++
 113 // fill-column: 100
 114 // c-file-style: "senf"
 115 // indent-tabs-mode: nil
 116 // ispell-local-dictionary: "american"
 117 // compile-command: "scons -u test"
 118 // comment-column: 40
 119 // End: