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Data Structures | |
| struct | AVRational |
| Rational number (pair of numerator and denominator). More... | |
Functions | |
| static AVRational | av_make_q (int num, int den) |
| Create an AVRational. More... | |
| static int | av_cmp_q (AVRational a, AVRational b) |
| Compare two rationals. More... | |
| static double | av_q2d (AVRational a) |
Convert an AVRational to a double. More... | |
| int | av_reduce (int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max) |
| Reduce a fraction. More... | |
| AVRational | av_mul_q (AVRational b, AVRational c) av_const |
| Multiply two rationals. More... | |
| AVRational | av_div_q (AVRational b, AVRational c) av_const |
| Divide one rational by another. More... | |
| AVRational | av_add_q (AVRational b, AVRational c) av_const |
| Add two rationals. More... | |
| AVRational | av_sub_q (AVRational b, AVRational c) av_const |
| Subtract one rational from another. More... | |
| static av_always_inline AVRational | av_inv_q (AVRational q) |
| Invert a rational. More... | |
| AVRational | av_d2q (double d, int max) av_const |
| Convert a double precision floating point number to a rational. More... | |
| int | av_nearer_q (AVRational q, AVRational q1, AVRational q2) |
| Find which of the two rationals is closer to another rational. More... | |
| 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. More... | |
| uint32_t | av_q2intfloat (AVRational q) |
Convert an AVRational to a IEEE 32-bit float expressed in fixed-point format. More... | |
| 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. More... | |
Utilties for rational number calculation.
Definition in file rational.h.
1.8.17