pjpeg-idct.c File Reference

#include <math.h>
#include <stdint.h>

Include dependency graph for pjpeg-idct.c:

Go to the source code of this file.

Macros
#define	M_PI   3.141592653589793238462643383279502884196
#define	W1   2841
#define	W2   2676
#define	W3   2408
#define	W5   1609
#define	W6   1108
#define	W7   565

Functions
static void	idct_1D_double (double *in, int instride, double *out, int outstride)
static void	idct_1D_u32 (int32_t *in, int instride, int32_t *out, int outstride)
static unsigned char	njClip (const int x)
static void	njColIDCT (const int *blk, unsigned char *out, int stride)
static void	njRowIDCT (int *blk)
void	pjpeg_idct_2D_double (int32_t in[64], uint8_t *out, uint32_t outstride)
void	pjpeg_idct_2D_nanojpeg (int32_t in[64], uint8_t *out, uint32_t outstride)
void	pjpeg_idct_2D_u32 (int32_t in[64], uint8_t *out, uint32_t outstride)

Macro Definition Documentation

M_PI

#define M_PI   3.141592653589793238462643383279502884196

Definition at line 32 of file pjpeg-idct.c.

W1

#define W1   2841

Definition at line 279 of file pjpeg-idct.c.

W2

#define W2   2676

Definition at line 280 of file pjpeg-idct.c.

W3

#define W3   2408

Definition at line 281 of file pjpeg-idct.c.

W5

#define W5   1609

Definition at line 282 of file pjpeg-idct.c.

W6

#define W6   1108

Definition at line 283 of file pjpeg-idct.c.

W7

#define W7   565

Definition at line 284 of file pjpeg-idct.c.

Function Documentation

idct_1D_double()

static void idct_1D_double ( double *  in, int  instride, double *  out, int  outstride  )

inlinestatic

Definition at line 222 of file pjpeg-idct.c.

idct_1D_u32()

static void idct_1D_u32 ( int32_t *  in, int  instride, int32_t *  out, int  outstride  )

inlinestatic

Definition at line 45 of file pjpeg-idct.c.

njClip()

static unsigned char njClip ( const int  x )

inlinestatic

Definition at line 275 of file pjpeg-idct.c.

njColIDCT()

static void njColIDCT ( const int *  blk, unsigned char *  out, int  stride  )

inlinestatic

Definition at line 331 of file pjpeg-idct.c.

njRowIDCT()

static void njRowIDCT ( int *  blk )

inlinestatic

Definition at line 286 of file pjpeg-idct.c.

pjpeg_idct_2D_double()

void pjpeg_idct_2D_double	(	int32_t	in[64],
		uint8_t *	out,
		uint32_t	outstride
	)

Definition at line 241 of file pjpeg-idct.c.

pjpeg_idct_2D_nanojpeg()

void pjpeg_idct_2D_nanojpeg	(	int32_t	in[64],
		uint8_t *	out,
		uint32_t	outstride
	)

Definition at line 380 of file pjpeg-idct.c.

pjpeg_idct_2D_u32()

void pjpeg_idct_2D_u32	(	int32_t	in[64],
		uint8_t *	out,
		uint32_t	outstride
	)

Definition at line 179 of file pjpeg-idct.c.