DsmccMessageHeader.h

/******************************************************************************
Este arquivo eh parte da implementacao do ambiente declarativo do middleware
Ginga (Ginga-NCL).

Direitos Autorais Reservados (c) 1989-2007 PUC-Rio/Laboratorio TeleMidia

Este programa eh software livre; voce pode redistribui-lo e/ou modificah-lo sob
os termos da Licenca Publica Geral GNU versao 2 conforme publicada pela Free
Software Foundation.

Este programa eh distribuido na expectativa de que seja util, porem, SEM
NENHUMA GARANTIA; nem mesmo a garantia implicita de COMERCIABILIDADE OU
ADEQUACAO A UMA FINALIDADE ESPECIFICA. Consulte a Licenca Publica Geral do
GNU versao 2 para mais detalhes.

Voce deve ter recebido uma copia da Licenca Publica Geral do GNU versao 2 junto
com este programa; se nao, escreva para a Free Software Foundation, Inc., no
endereco 59 Temple Street, Suite 330, Boston, MA 02111-1307 USA.

Para maiores informacoes:
ncl @ telemidia.puc-rio.br
http://www.ncl.org.br
http://www.ginga.org.br
http://www.telemidia.puc-rio.br
******************************************************************************
This file is part of the declarative environment of middleware Ginga (Ginga-NCL)

Copyright: 1989-2007 PUC-RIO/LABORATORIO TELEMIDIA, All Rights Reserved.

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License version 2 as published by
the Free Software Foundation.

This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.  See the GNU General Public License version 2 for more
details.

You should have received a copy of the GNU General Public License version 2
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA

For further information contact:
ncl @ telemidia.puc-rio.br
http://www.ncl.org.br
http://www.ginga.org.br
http://www.telemidia.puc-rio.br
*******************************************************************************/

#ifndef DSMCCMESSAGEHEADER_H_
#define DSMCCMESSAGEHEADER_H_

extern "C" {
    #include <sys/stat.h>
    #include <stdio.h>
    #include <stdio.h>
    #include <string.h>
}

#include <iostream>
#include <string>
using namespace std;

namespace br {
namespace pucrio {
namespace telemidia {
namespace ginga {
namespace core {
namespace dataprocessing {
namespace carousel {
    class DsmccMessageHeader {
        private:
            //origin es is
            unsigned int pid;
            string fileName;

            //
            // ISO/IEC 13818-6 DSM-CC MESSAGE HEADER
            //

            // Must be 0x11 for DSMCC message. (1 byte)
            unsigned int protocolDiscriminator;

            // Defines message type. (1 byte)
            //   0x01    Configuration message
            //   0x02    Session message
            //   0x03    Download message
            //   0x04    Channel change
            //   0x05    Passthru message
            unsigned int dsmccType;

            // Indicates the message type depending on
            // DSMCC type. (2 bytes)
            //   0x1001    Dowload info request
            //   0x1002    Download info response or DII
            //   0x1003    Download data block (actual data)
            //   0x1004    Download data request
            //   0x1005    Download cancel
            //   0x1006    Download server initiate (DSI)
            unsigned int messageId;

            // Used for session integrity and
            // error. (4 bytes)
            unsigned int transactionId;

            // RESERVED BYTE, must be 0xFF.

            // Indicates the lenght in bytes of the
            // adaptation header. (1 byte)
            unsigned int adaptationLength;

            // The total lenght in bytes of this message
            // following this field.  This lenght includes
            // any adaptation headers. (2 bytes)
            unsigned int messageLength;

        public:
            DsmccMessageHeader();
            int readMessageFromFile(string fileName, unsigned int pid);
            unsigned int getESId();
            string getFileName();
            unsigned int getDsmccType();
            unsigned int getMessageId();
            unsigned int getTrasnsactionId();
            unsigned int getAdaptationLength();
            unsigned int getMessageLength();
            void print();
    };
}
}
}
}
}
}
}

#endif /*DSMCCMESSAGEHEADER_H_*/