/*
   Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011 Her Majesty
   the Queen in Right of Canada (Communications Research Center Canada)

   Copyright (C) 2014, 2015
   Matthias P. Braendli, matthias.braendli@mpb.li

    http://opendigitalradio.org
 */
/*
   This file is part of ODR-DabMod.

   ODR-DabMod is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as
   published by the Free Software Foundation, either version 3 of the
   License, or (at your option) any later version.

   ODR-DabMod 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 for more details.

   You should have received a copy of the GNU General Public License
   along with ODR-DabMod.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef ETI_READER_H
#define ETI_READER_H

#ifdef HAVE_CONFIG_H
#   include <config.h>
#endif


#include "Eti.h"
#include "Log.h"
#include "FicSource.h"
#include "SubchannelSource.h"
#include "TimestampDecoder.h"

#include <vector>
#include <memory>
#include <stdint.h>
#include <sys/types.h>


class EtiReader
{
public:
    EtiReader(
            double& tist_offset_s,
            unsigned tist_delay_stages);

    std::shared_ptr<FicSource>& getFic();
    unsigned getMode();
    unsigned getFp();
    const std::vector<std::shared_ptr<SubchannelSource> >& getSubchannels();
    int process(const Buffer* dataIn);

    void calculateTimestamp(struct frame_timestamp& ts)
    {
        myTimestampDecoder.calculateTimestamp(ts);
    }

    /* Returns true if we have valid time stamps in the ETI*/
    bool sourceContainsTimestamp();

protected:
    /* Transform the ETI TIST to a PPS offset in units of 1/16384000 s */
    uint32_t getPPSOffset();

    void sync();
    int state;
    uint32_t nb_frames;
    uint16_t framesize;
    eti_SYNC eti_sync;
    eti_FC eti_fc;
    std::vector<eti_STC> eti_stc;
    eti_EOH eti_eoh;
    eti_EOF eti_eof;
    eti_TIST eti_tist;
    std::shared_ptr<FicSource> myFicSource;
    std::vector<std::shared_ptr<SubchannelSource> > mySources;
    TimestampDecoder myTimestampDecoder;

private:
    size_t myCurrentFrame;
    bool eti_fc_valid;
};


#endif // ETI_READER_H