encoder.h

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/*
   libltc - en+decode linear timecode
 
   Copyright (C) 2006-2012 Robin Gareus <robin@gareus.org>
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as
   published by the Free Software Foundation, either version 3 of the
   License, or (at your option) any later version.
 
   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 Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public
   License along with this library.
   If not, see <http://www.gnu.org/licenses/>.
*/
 
#include "ltc/ltc.h"
#ifndef SAMPLE_CENTER // also defined in decoder.h
#define SAMPLE_CENTER 128 // unsigned 8 bit.
#endif
 
struct LTCEncoder {
        double fps;
        double sample_rate;
        double filter_const;
        int flags;
        enum LTC_TV_STANDARD standard;
        ltcsnd_sample_t enc_lo, enc_hi;
 
        size_t offset;
        size_t bufsize;
        ltcsnd_sample_t *buf;
 
        char state;
 
        double samples_per_clock;
        double samples_per_clock_2;
        double sample_remainder;
 
        LTCFrame f;
};
 
int encode_byte(LTCEncoder *e, int byte, double speed);