Lines Matching defs:den
36 int64_t num, int64_t den, int64_t max)
39 int sign = (num < 0) ^ (den < 0);
40 int64_t gcd = av_gcd(FFABS(num), FFABS(den));
44 den = FFABS(den) / gcd;
46 if (num <= max && den <= max) {
47 a1 = (AVRational) { num, den };
48 den = 0;
51 while (den) {
52 uint64_t x = num / den;
53 int64_t next_den = num - den * x;
55 int64_t a2d = x * a1.den + a0.den;
59 if (a1.den) x = FFMIN(x, (max - a0.den) / a1.den);
61 if (den * (2 * x * a1.den + a0.den) > num * a1.den)
62 a1 = (AVRational) { x * a1.num + a0.num, x * a1.den + a0.den };
68 num = den;
69 den = next_den;
71 av_assert2(av_gcd(a1.num, a1.den) <= 1U);
72 av_assert2(a1.num <= max && a1.den <= max);
75 *dst_den = a1.den;
77 return den == 0;
82 av_reduce(&b.num, &b.den,
84 b.den * (int64_t) c.den, INT_MAX);
90 return av_mul_q(b, (AVRational) { c.den, c.num });
94 av_reduce(&b.num, &b.den,
95 b.num * (int64_t) c.den +
96 c.num * (int64_t) b.den,
97 b.den * (int64_t) c.den, INT_MAX);
103 return av_add_q(b, (AVRational) { -c.num, c.den });
110 int64_t den;
117 den = 1LL << (61 - exponent);
120 av_reduce(&a.num, &a.den, floor(d * den + 0.5), den, max);
121 if ((!a.num || !a.den) && d && max>0 && max<INT_MAX)
122 av_reduce(&a.num, &a.den, floor(d * den + 0.5), den, INT_MAX);
130 int64_t a = q1.num * (int64_t)q2.den + q2.num * (int64_t)q1.den;
131 int64_t b = 2 * (int64_t)q1.den * q2.den;
134 int64_t x_up = av_rescale_rnd(a, q.den, b, AV_ROUND_UP);
137 int64_t x_down = av_rescale_rnd(a, q.den, b, AV_ROUND_DOWN);
145 for (i = 0; q_list[i].den; i++)
157 if (q.den < 0) {
158 q.den *= -1;
166 if (!q.num && !q.den) return 0xFFC00000;
168 if (!q.den) return 0x7F800000 | (q.num & 0x80000000);
170 shift = 23 + av_log2(q.den) - av_log2(q.num);
171 if (shift >= 0) n = av_rescale(q.num, 1LL<<shift, q.den);
172 else n = av_rescale(q.num, 1, ((int64_t)q.den) << -shift);
177 if (shift >= 0) n = av_rescale(q.num, 1LL<<shift, q.den);
178 else n = av_rescale(q.num, 1, ((int64_t)q.den) << -shift);
190 gcd = av_gcd(a.den, b.den);
191 lcm = (a.den / gcd) * b.den;