FFmpeg
Macros | Typedefs | Functions | Variables
faanidct.c File Reference
#include "faanidct.h"
#include "libavutil/common.h"

Go to the source code of this file.

Macros

#define B0   1.0000000000000000000000
 
#define B1   1.3870398453221474618216
 
#define B2   1.3065629648763765278566
 
#define B3   1.1758756024193587169745
 
#define B4   1.0000000000000000000000
 
#define B5   0.7856949583871021812779
 
#define B6   0.5411961001461969843997
 
#define B7   0.2758993792829430123360
 
#define A4   0.70710678118654752438
 
#define A2   0.92387953251128675613
 

Typedefs

typedef float FLOAT
 

Functions

static void p8idct (int16_t data[64], FLOAT temp[64], uint8_t *dest, ptrdiff_t stride, int x, int y, int type)
 
void ff_faanidct (int16_t block[64])
 
void ff_faanidct_add (uint8_t *dest, ptrdiff_t line_size, int16_t block[64])
 
void ff_faanidct_put (uint8_t *dest, ptrdiff_t line_size, int16_t block[64])
 

Variables

static const FLOAT prescale [64]
 

Macro Definition Documentation

#define B0   1.0000000000000000000000

Definition at line 27 of file faanidct.c.

#define B1   1.3870398453221474618216

Definition at line 28 of file faanidct.c.

#define B2   1.3065629648763765278566

Definition at line 29 of file faanidct.c.

Referenced by p8idct().

#define B3   1.1758756024193587169745

Definition at line 30 of file faanidct.c.

#define B4   1.0000000000000000000000

Definition at line 31 of file faanidct.c.

#define B5   0.7856949583871021812779

Definition at line 32 of file faanidct.c.

#define B6   0.5411961001461969843997

Definition at line 33 of file faanidct.c.

Referenced by p8idct().

#define B7   0.2758993792829430123360

Definition at line 34 of file faanidct.c.

#define A4   0.70710678118654752438

Definition at line 36 of file faanidct.c.

Referenced by p8idct().

#define A2   0.92387953251128675613

Definition at line 37 of file faanidct.c.

Referenced by p8idct().

Typedef Documentation

typedef float FLOAT

Definition at line 25 of file faanidct.c.

Function Documentation

static void p8idct ( int16_t  data[64],
FLOAT  temp[64],
uint8_t dest,
ptrdiff_t  stride,
int  x,
int  y,
int  type 
)
inlinestatic

Definition at line 50 of file faanidct.c.

Referenced by ff_faanidct(), ff_faanidct_add(), and ff_faanidct_put().

void ff_faanidct ( int16_t  block[64])

Definition at line 127 of file faanidct.c.

Referenced by ff_idctdsp_init().

void ff_faanidct_add ( uint8_t dest,
ptrdiff_t  line_size,
int16_t  block[64] 
)

Definition at line 140 of file faanidct.c.

Referenced by ff_idctdsp_init().

void ff_faanidct_put ( uint8_t dest,
ptrdiff_t  line_size,
int16_t  block[64] 
)

Definition at line 154 of file faanidct.c.

Referenced by ff_idctdsp_init().

Variable Documentation

const FLOAT prescale[64]
static
Initial value:
={
B0*B0/8, B0*B1/8, B0*B2/8, B0*B3/8, B0*B4/8, B0*B5/8, B0*B6/8, B0*B7/8,
B1*B0/8, B1*B1/8, B1*B2/8, B1*B3/8, B1*B4/8, B1*B5/8, B1*B6/8, B1*B7/8,
B2*B0/8, B2*B1/8, B2*B2/8, B2*B3/8, B2*B4/8, B2*B5/8, B2*B6/8, B2*B7/8,
B3*B0/8, B3*B1/8, B3*B2/8, B3*B3/8, B3*B4/8, B3*B5/8, B3*B6/8, B3*B7/8,
B4*B0/8, B4*B1/8, B4*B2/8, B4*B3/8, B4*B4/8, B4*B5/8, B4*B6/8, B4*B7/8,
B5*B0/8, B5*B1/8, B5*B2/8, B5*B3/8, B5*B4/8, B5*B5/8, B5*B6/8, B5*B7/8,
B6*B0/8, B6*B1/8, B6*B2/8, B6*B3/8, B6*B4/8, B6*B5/8, B6*B6/8, B6*B7/8,
B7*B0/8, B7*B1/8, B7*B2/8, B7*B3/8, B7*B4/8, B7*B5/8, B7*B6/8, B7*B7/8,
}
#define B1
Definition: faanidct.c:28
#define B0
Definition: faanidct.c:27
#define B6
Definition: faanidct.c:33
#define B5
Definition: faanidct.c:32
#define B4
Definition: faanidct.c:31
#define B7
Definition: faanidct.c:34
#define B2
Definition: faanidct.c:29
#define B3
Definition: faanidct.c:30

Definition at line 39 of file faanidct.c.

Referenced by ff_faanidct(), ff_faanidct_add(), and ff_faanidct_put().