mathematics.h

dianzi shuju ,tai badao le ,my tian li a a

#ifndef MATHEMATICS_H
#define MATHEMATICS_H

#include "rational.h"

enum AVRounding {
    AV_ROUND_ZERO     = 0,
    AV_ROUND_INF      = 1,
    AV_ROUND_DOWN     = 2,
    AV_ROUND_UP       = 3,
    AV_ROUND_NEAR_INF = 5,
};

int64_t av_rescale(int64_t a, int64_t b, int64_t c);
int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding);
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq);

#endif /* MATHEMATICS_H */