/* * Rational numbers * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> * * This library 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 2 of the License, or (at your option) any later version. * * This library 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, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA * */ /** * @file rational.h * Rational numbers. * @author Michael Niedermayer <michaelni@gmx.at> */#ifndef RATIONAL_H#define RATIONAL_Htypedef struct AVRational{    int num;     int den;} AVRational;static inline int av_cmp_q(AVRational a, AVRational b){    const int64_t tmp= a.num * (int64_t)b.den - b.num * (int64_t)a.den;    if     (tmp <  0) return -1;    else if(tmp == 0) return  0;    else              return  1;}static inline double av_q2d(AVRational a){    return a.num / (double) a.den;}AVRational av_mul_q(AVRational b, AVRational c);AVRational av_div_q(AVRational b, AVRational c);AVRational av_add_q(AVRational b, AVRational c);AVRational av_sub_q(AVRational b, AVRational c);AVRational av_d2q(double d, int max);#endif // RATIONAL_H