ISDBTProvider.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 ISDBTPROVIDER_H_
#define ISDBTPROVIDER_H_

#define INPUT_BUFFER_SIZE 4096

extern "C" {
    #include <sys/types.h>
    #include <stdio.h>
        #include <errno.h>
        #include <poll.h>
        #include <stdint.h>
        #include <unistd.h>
        #include <linux/dvb/version.h>
        #include <linux/dvb/frontend.h>
        #include <linux/dvb/dmx.h>


// Latin America channel assignments for ISDB-T International
                 static uint64_t tv_channels_list[] =  
                { 
                /* 0 */ 0, /* index placeholders... */
                /* 1 */ 0, // never used for broadcasting
                /* 2 */ 0, // what to do?
                /* 3 */ 0, // what to do?
                /* 4 */ 0, // what to do?
                /* 5 */ 0, // future allocation for radio broadcasting
                /* 6 */ 0, // future allocation for radio broadcasting
                /* 7 */ 177142000,
                /* 8 */ 183142000,
                /* 9 */ 189142000,
                /* 10 */ 195142000,
                /* 11 */ 201142000,
                /* 12 */ 207142000,
                /* 13 */ 213142000,
                /* 14 */ 473142000,
                /* 15 */ 479142000,
                /* 16 */ 485142000,
                /* 17 */ 491142000,
                /* 18 */ 497142000,
                /* 19 */ 503142000,
                /* 20 */ 509142000,
                /* 21 */ 515142000,
                /* 22 */ 521142000,
                /* 23 */ 527142000,
                /* 24 */ 533142000,
                /* 25 */ 539142000,
                /* 26 */ 545142000,
                /* 27 */ 551142000,
                /* 28 */ 557142000,
                /* 29 */ 563142000,
                /* 30 */ 569142000,
                /* 31 */ 575142000,
                /* 32 */ 581142000,
                /* 33 */ 587142000,
                /* 34 */ 593142000,
                /* 35 */ 599142000,
                /* 36 */ 605142000,
                /* 37 */ 611142000, // radio astronomy reserved (we are in rx mode anyway, so no harm here...
                /* 38 */ 617142000, 
                /* 39 */ 623142000,
                /* 40 */ 629142000,
                /* 41 */ 635142000,
                /* 42 */ 641142000,
                /* 43 */ 647142000,
                /* 44 */ 653142000,
                /* 45 */ 659142000,
                /* 46 */ 665142000,
                /* 47 */ 671142000,
                /* 48 */ 677142000,
                /* 49 */ 683142000,
                /* 50 */ 689142000,
                /* 51 */ 695142000,
                /* 52 */ 701142000,
                /* 53 */ 707142000,
                /* 54 */ 713142000,
                /* 55 */ 719142000,
                /* 56 */ 725142000,
                /* 57 */ 731142000,
                /* 58 */ 737142000, 
                /* 59 */ 743142000,
                /* 60 */ 749142000,
                /* 61 */ 755142000,
                /* 62 */ 761142000,
                /* 63 */ 767142000,
                /* 64 */ 773142000,
                /* 65 */ 779142000,
                /* 66 */ 785142000,
                /* 67 */ 791142000,
                /* 68 */ 797142000,
                /* 69 */ 803142000,
                };


}

#include "system/compat/SystemCompat.h"
using namespace ::br::pucrio::telemidia::ginga::core::system::compat;

#include "../../IDataProvider.h"
#include "../../Channel.h"

#include "ISDBTFrontend.h"
#include "RingBuffer.h"

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

namespace br {
namespace pucrio {
namespace telemidia {
namespace ginga {
namespace core {
namespace tuning {

    class ISDBTProvider : public IDataProvider {
        protected:
            string fileName;
            int feDescriptor;
            int initialFrequency;
            static const string iniFileName;
            ISDBTFrontend* frontend;
            vector<IChannel*>* channels;
            vector<IChannel*>::iterator currentChannel;
            short capabilities;
            ITProviderListener* listener;

                        // thread and ring buffer variables...
            int keep_reading;
            pthread_t output_thread_id;
            pthread_mutex_t output_mutex;
            pthread_cond_t output_cond;
            struct ring_buffer output_buffer; 
            static void *output_thread(void *nothing);
        public:
            ISDBTProvider(long freq);
            virtual ~ISDBTProvider();

            short getCaps();
            void setListener(ITProviderListener* listener);
            void attachFilter(IFrontendFilter* filter);
            void removeFilter(IFrontendFilter* filter);

        private:
            bool scanChannels();
            void initializeChannels();

        public:
            bool tune();
            IChannel* getCurrentChannel();
            bool getSTCValue(uint64_t* stc, int* valueType);
            bool changeChannel(int factor);
            bool setChannel(string channelValue);
            int createPesFilter(int pid, int pesType, bool compositeFiler);
            string getPesFilterOutput();
            void close();
            int receiveData(char* buff, int skipSize, unsigned char packetSize);
            

            
    };
}
}
}
}
}
}

#endif /*FILESYSTEMPROVIDER_H_*/