29 #ifndef AVUTIL_RATIONAL_H
30 #define AVUTIL_RATIONAL_H
92 if(
tmp)
return (
int)((
tmp ^
a.den ^
b.den)>>63)|1;
93 else if(
b.den &&
a.den)
return 0;
94 else if(
a.num &&
b.num)
return (
a.num>>31) - (
b.num>>31);
105 return a.num / (double)
a.den;
Macro definitions for various function/variable attributes.
int av_nearer_q(AVRational q, AVRational q1, AVRational q2)
Find which of the two rationals is closer to another rational.
AVRational av_add_q(AVRational b, AVRational c) av_const
Add two rationals.
AVRational av_mul_q(AVRational b, AVRational c) av_const
Multiply two rationals.
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
int av_find_nearest_q_idx(AVRational q, const AVRational *q_list)
Find the value in a list of rationals nearest a given reference rational.
AVRational av_gcd_q(AVRational a, AVRational b, int max_den, AVRational def)
Return the best rational so that a and b are multiple of it.
static AVRational av_make_q(int num, int den)
Create an AVRational.
AVRational av_d2q(double d, int max) av_const
Convert a double precision floating point number to a rational.
static double av_q2d(AVRational a)
Convert an AVRational to a double.
static int av_cmp_q(AVRational a, AVRational b)
Compare two rationals.
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
AVRational av_sub_q(AVRational b, AVRational c) av_const
Subtract one rational from another.
uint32_t av_q2intfloat(AVRational q)
Convert an AVRational to a IEEE 32-bit float expressed in fixed-point format.
AVRational av_div_q(AVRational b, AVRational c) av_const
Divide one rational by another.
Rational number (pair of numerator and denominator).
static const uint8_t q1[256]