FFmpeg: libavutil/intmath.h File Reference

FFmpeg

[フレーム]

libavutil

Macros | Functions | Variables

intmath.h File Reference

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

Go to the source code of this file.

Macros

#define ff_log2 ff_log2_c

#define ff_log2_16bit ff_log2_16bit_c

#define av_log2 ff_log2

#define av_log2_16bit ff_log2_16bit

#define ff_ctz ff_ctz_c

#define ff_ctzll ff_ctzll_c

#define ff_clz ff_clz_c

Functions

static av_always_inline av_const int ff_log2_c (unsigned int v)

static av_always_inline av_const int ff_log2_16bit_c (unsigned int v)

static av_always_inline av_const int ff_ctz_c (int v)

Trailing zero bit count. More...

static av_always_inline av_const int ff_ctzll_c (long long v)

static av_always_inline av_const unsigned ff_clz_c (unsigned x)

Variables

const uint8_t ff_log2_tab [256]

Macro Definition Documentation

◆ ff_log2

#define ff_log2 ff_log2_c

Definition at line 51 of file intmath.h.

◆ ff_log2_16bit

#define ff_log2_16bit ff_log2_16bit_c

Definition at line 70 of file intmath.h.

◆ av_log2

#define av_log2 ff_log2

Definition at line 84 of file intmath.h.

◆ av_log2_16bit

#define av_log2_16bit ff_log2_16bit

Definition at line 85 of file intmath.h.

Function Documentation

◆ ff_log2_c()

static av_always_inline av_const int ff_log2_c ( unsigned int v )

static

Definition at line 52 of file intmath.h.

◆ ff_log2_16bit_c()

static av_always_inline av_const int ff_log2_16bit_c ( unsigned int v )

static

Definition at line 71 of file intmath.h.

Variable Documentation

◆ ff_log2_tab

const uint8_t ff_log2_tab[256]

Definition at line 23 of file log2_tab.c.

Referenced by decode_frame(), ebml_read_num(), ff_log2_16bit_c(), ff_log2_c(), put_xsub_rle(), and seq_decode_op1().

Generated on Wed Nov 19 2025 19:24:03 for FFmpeg by doxygen 1.8.17