Libav
|
#include <stdint.h>
#include <math.h>
#include "attributes.h"
#include "rational.h"
#include "intfloat.h"
Go to the source code of this file.
Macros | |
#define | M_LOG2_10 3.32192809488736234787 /* log_2 10 */ |
#define | M_PHI 1.61803398874989484820 /* phi / golden ratio */ |
#define | NAN av_int2float(0x7fc00000) |
#define | INFINITY av_int2float(0x7f800000) |
Enumerations | |
enum | AVRounding { AV_ROUND_ZERO = 0, AV_ROUND_INF = 1, AV_ROUND_DOWN = 2, AV_ROUND_UP = 3, AV_ROUND_NEAR_INF = 5 } |
Functions | |
int64_t av_const | av_gcd (int64_t a, int64_t b) |
Return the greatest common divisor of a and b. More... | |
int64_t | av_rescale (int64_t a, int64_t b, int64_t c) av_const |
Rescale a 64-bit integer with rounding to nearest. More... | |
int64_t | av_rescale_rnd (int64_t a, int64_t b, int64_t c, enum AVRounding) av_const |
Rescale a 64-bit integer with specified rounding. More... | |
int64_t | av_rescale_q (int64_t a, AVRational bq, AVRational cq) av_const |
Rescale a 64-bit integer by 2 rational numbers. More... | |
int64_t | av_rescale_q_rnd (int64_t a, AVRational bq, AVRational cq, enum AVRounding) av_const |
Rescale a 64-bit integer by 2 rational numbers with specified rounding. More... | |
int | av_compare_ts (int64_t ts_a, AVRational tb_a, int64_t ts_b, AVRational tb_b) |
Compare 2 timestamps each in its own timebases. More... | |
int64_t | av_compare_mod (uint64_t a, uint64_t b, uint64_t mod) |
Compare 2 integers modulo mod. More... | |
#define M_LOG2_10 3.32192809488736234787 /* log_2 10 */ |
Definition at line 31 of file mathematics.h.
Referenced by ff_amr_set_fixed_gain().
#define M_PHI 1.61803398874989484820 /* phi / golden ratio */ |
Definition at line 34 of file mathematics.h.
Referenced by config_input(), config_input_overlay(), config_output_props(), config_props(), get_aspect_ratio(), and init().
#define NAN av_int2float(0x7fc00000) |
Definition at line 37 of file mathematics.h.
#define INFINITY av_int2float(0x7f800000) |
Definition at line 40 of file mathematics.h.