libavutil/libm.h File Reference

Replacements for frequently missing libm functions. More...

#include <math.h>
#include "config.h"
#include "attributes.h"

Go to the source code of this file.

Defines
#define	exp2(x)   exp((x) * 0.693147180559945)
#define	exp2f(x)   ((float)exp2(x))
#define	llrintf(x)   ((long long)rint(x))
#define	log2f(x)   ((float)log2(x))

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Detailed Description

Replacements for frequently missing libm functions.

Definition in file libm.h.

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Define Documentation

#define exp2

(

x

)

exp((x) * 0.693147180559945)

Definition at line 33 of file libm.h.

#define exp2f

(

x

)

((float)exp2(x))

Definition at line 38 of file libm.h.

Referenced by ff_amr_set_fixed_gain(), and sbr_dequant().

#define llrintf

(

x

)

((long long)rint(x))

Definition at line 48 of file libm.h.

Referenced by av_audio_convert().

#define log2f

(

x

)

((float)log2(x))

Definition at line 58 of file libm.h.

Referenced by coef2maxsf(), coef2minsf(), sbr_make_f_derived(), sbr_make_f_master(), search_for_quantizers_anmr(), search_for_quantizers_faac(), search_for_quantizers_fast(), and search_for_quantizers_twoloop().