MPEGDVBBundle/MPESection.cc

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00001 // $Id: MPESection.cc 1742 2010-11-04 14:51:56Z g0dil $
00002 //
00003 // Copyright (C) 2007
00004 // Fraunhofer (FOKUS)
00005 // Competence Center NETwork research (NET), St. Augustin, GERMANY
00006 //     Thorsten Horstmann <tho@berlios.de>
00007 //
00008 // This program is free software; you can redistribute it and/or modify
00009 // it under the terms of the GNU General Public License as published by
00010 // the Free Software Foundation; either version 2 of the License, or
00011 // (at your option) any later version.
00012 //
00013 // This program is distributed in the hope that it will be useful,
00014 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00015 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00016 // GNU General Public License for more details.
00017 //
00018 // You should have received a copy of the GNU General Public License
00019 // along with this program; if not, write to the
00020 // Free Software Foundation, Inc.,
00021 // 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
00022 
00026 #include "MPESection.hh"
00027 //#include "MPESection.ih"
00028 
00029 // Custom includes
00030 #include <iomanip>
00031 #include <boost/io/ios_state.hpp>
00032 #include <senf/Packets/DefaultBundle/LlcSnapPacket.hh>
00033 #include <senf/Packets/DefaultBundle/IPv4Packet.hh>
00034 #include <senf/Packets/DefaultBundle/IPv6Packet.hh>
00035 
00036 #define prefix_
00037 //-/////////////////////////////////////////////////////////////////////////////////////////////////
00038 
00039 
00040 prefix_ boost::uint32_t senf::MPESectionParser::calcCrc()
00041     const
00042 {
00043     return std::for_each(
00044             data().begin(),
00045             boost::prior(data().end(), 4),
00046             crc32_t() ).checksum();
00047 }
00048 
00049 
00050 prefix_ void senf::MPESectionType::dump(packet p, std::ostream & os)
00051 {
00052     boost::io::ios_all_saver ias(os);
00053     os << "MPE Section:\n"
00054        << std::hex
00055        << senf::fieldName("table_id")                  << "0x" << unsigned(p->table_id()) << "\n"
00056        << senf::fieldName("section syntax indicator")  << p->section_syntax_indicator() << "\n"
00057        << senf::fieldName("private indicator")         << p->private_indicator() << "\n"
00058        << std::dec
00059        << senf::fieldName("section length")            << p->section_length() << "\n"
00060        << std::hex
00061        << senf::fieldName("MAC address 6")             << "0x" << unsigned(p->mac_addr_6()) << "\n"
00062        << senf::fieldName("MAC address 5")             << "0x" << unsigned(p->mac_addr_5()) << "\n"
00063        << senf::fieldName("payload scrambling ctrl")   << "0x" << p->payload_scrmbl_ctrl() << "\n"
00064        << senf::fieldName("address scrambling ctrl")   << "0x" << p-> addr_scrmbl_ctrl()  << "\n"
00065        << senf::fieldName("LLC/SNAP flag")             << "0x" << p->llc_snap_flag() << "\n"
00066        << senf::fieldName("current next indicator")    << "0x" << p->curr_next_indicator() << "\n"
00067        << senf::fieldName("section number")            << "0x" << unsigned(p->section_num()) << "\n"
00068        << senf::fieldName("last section number")       << "0x" << unsigned(p->last_section_num()) << "\n"
00069        << senf::fieldName("real time parameters")      << "\n"
00070        << senf::fieldName("  delta_t")                 << "0x" << unsigned(p->real_time_parameters().delta_t()) << "\n"
00071        << senf::fieldName("  table boundary")          << "0x" << unsigned(p->real_time_parameters().table_boundary()) << "\n"
00072        << senf::fieldName("  frame boundary")          << "0x" << unsigned(p->real_time_parameters().frame_boundary()) << "\n"
00073        << senf::fieldName("  address")                 << "0x" << unsigned(p->real_time_parameters().address()) << "\n"
00074        << std::dec
00075        << senf::fieldName("crc")                       << unsigned(p->crc()) << "\n";
00076 }
00077 
00078 prefix_ senf::PacketParserBase::size_type senf::MPESectionType::initSize()
00079 {
00080     return parser::fixed_bytes + 32/8;
00081 }
00082 
00083 prefix_ senf::PacketParserBase::size_type senf::MPESectionType::initHeadSize()
00084 {
00085     return parser::fixed_bytes;
00086 }
00087 
00088 prefix_ senf::PacketInterpreterBase::factory_t senf::MPESectionType::nextPacketType(packet p)
00089 {
00090     if (p.data().size() > initSize()+1) {
00091         if (p->llc_snap_flag())
00092             return LlcSnapPacket::factory();
00093         if (p->ip_datagram_version().value() == 4)
00094             return IPv4Packet::factory();
00095         if (p->ip_datagram_version().value() == 6)
00096             return IPv6Packet::factory();
00097     }
00098     return no_factory();
00099 }
00100 
00101 prefix_ void senf::MPESectionType::finalize(packet p)
00102 {
00103     p->llc_snap_flag() = p.next(nothrow) && p.next().is<LlcSnapPacket>() ? 1 : 0;
00104     p->section_length() = p.data().size() - 3;
00105     p->crc() = p->calcCrc();
00106 }
00107 
00108 //-/////////////////////////////////////////////////////////////////////////////////////////////////
00109 #undef prefix_
00110 
00111 
00112 // Local Variables:
00113 // mode: c++
00114 // fill-column: 100
00115 // c-file-style: "senf"
00116 // indent-tabs-mode: nil
00117 // ispell-local-dictionary: "american"
00118 // compile-command: "scons -u test"
00119 // comment-column: 40
00120 // End:
SENF Extensible Network Framework

MPEGDVBBundle/MPESection.cc
