IDataProvider.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 IDATAPROVIDER_H_
#define IDATAPROVIDER_H_

#include <stdint.h>

#include "IChannel.h"
#include "IProviderListener.h"
#include "frontends/IFrontendFilter.h"

#define BUFFSIZE (204 * 200) + 1

namespace br {
namespace pucrio {
namespace telemidia {
namespace ginga {
namespace core {
namespace tuning {
    //data provider capabilities
    static const short DPC_CAN_FETCHDATA = 0x01;
    static const short DPC_CAN_DEMUXBYHW = 0x02;
    static const short DPC_CAN_FILTERPID = 0x04;
    static const short DPC_CAN_FILTERTID = 0x08;
    static const short DPC_CAN_DECODESTC = 0x10;
    static const short DPC_CAN_CTLSTREAM = 0x20;

    // pes filter types
    static const int PFT_DEFAULTTS = 0x01;
    static const int PFT_PCR       = 0x02;
    static const int PFT_VIDEO     = 0x03;
    static const int PFT_AUDIO     = 0x04;
    static const int PFT_OTHER     = 0x05;

    class IDataProvider {
        public:
            virtual ~IDataProvider(){};
            virtual short getCaps()=0;
            virtual void setListener(ITProviderListener* listener)=0;
            virtual void attachFilter(IFrontendFilter* filter)=0;
            virtual void removeFilter(IFrontendFilter* filter)=0;

            virtual int receiveData(
                    char* buff, int skipSize, unsigned char packetSize)=0;

            virtual bool tune()=0;
            virtual IChannel* getCurrentChannel()=0;
            virtual bool getSTCValue(uint64_t* stc, int* valueType)=0;
            virtual bool changeChannel(int factor)=0;
            virtual bool setChannel(string channelValue)=0;
            virtual int createPesFilter(
                    int pid, int pesType, bool compositeFiler)=0;

            virtual string getPesFilterOutput()=0;
            virtual void close()=0;
    };
}
}
}
}
}
}

#endif /*IDATAPROVIDER_H_*/