dct.c File Reference

#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include "libavutil/cpu.h"
#include "libavutil/common.h"
#include "libavutil/internal.h"
#include "libavutil/lfg.h"
#include "libavutil/mem_internal.h"
#include "libavutil/time.h"
#include "libavcodec/dct.h"
#include "libavcodec/idctdsp.h"
#include "libavcodec/simple_idct.h"
#include "libavcodec/xvididct.h"
#include "libavcodec/aandcttab.h"
#include "libavcodec/faandct.h"
#include "libavcodec/faanidct.h"
#include "libavcodec/dctref.h"
#include "compat/getopt.c"

Go to the source code of this file.

Data Structures
struct	algo

Macros
#define	AANSCALE_BITS   12
#define	NB_ITS   20000
#define	NB_ITS_SPEED   50000

Functions
static void	ff_prores_idct_wrap (int16_t *dst)
static void	init_block (int16_t block[64], int test, int is_idct, AVLFG *prng, int vals)
static void	permute (int16_t dst[64], const int16_t src[64], enum idct_permutation_type perm_type)
static int	dct_error (const struct algo *dct, int test, int is_idct, int speed, const int bits)
static void	idct248_ref (uint8_t *dest, ptrdiff_t linesize, int16_t *block)
static void	idct248_error (const char *name, void(*idct248_put)(uint8_t *dest, ptrdiff_t line_size, int16_t *block), int speed)
static void	help (void)
int	main (int argc, char **argv)

Variables
static const struct algo	fdct_tab []
static const struct algo	idct_tab []
static const struct algo	fdct_tab_arch [] = { { 0 } }
static const struct algo	idct_tab_arch [] = { { 0 } }
static int16_t	block [64]
static int16_t	block1 [64]
static uint8_t	img_dest [64]
static uint8_t	img_dest1 [64]

Detailed Description

DCT test (c) 2001 Fabrice Bellard Started from sample code by Juan J. Sierralta P.

Definition in file dct.c.

Macro Definition Documentation

AANSCALE_BITS

#define AANSCALE_BITS   12

Definition at line 111 of file dct.c.

NB_ITS

#define NB_ITS   20000

Definition at line 113 of file dct.c.

NB_ITS_SPEED

#define NB_ITS_SPEED   50000

Definition at line 114 of file dct.c.

Function Documentation

ff_prores_idct_wrap()

static void ff_prores_idct_wrap ( int16_t *  dst )

static

Definition at line 70 of file dct.c.

init_block()

static void init_block ( int16_t  block[64], int  test, int  is_idct, AVLFG *  prng, int  vals  )

static

Definition at line 119 of file dct.c.

Referenced by dct_error().

permute()

static void permute ( int16_t  dst[64], const int16_t  src[64], enum idct_permutation_type  perm_type  )

static

Definition at line 149 of file dct.c.

Referenced by dct_error().

dct_error()

static int dct_error ( const struct algo *  dct, int  test, int  is_idct, int  speed, const int  bits  )

static

Definition at line 179 of file dct.c.

Referenced by main().

idct248_ref()

static void idct248_ref ( uint8_t *  dest, ptrdiff_t  linesize, int16_t *  block  )

static

Definition at line 294 of file dct.c.

Referenced by idct248_error().

idct248_error()

static void idct248_error ( const char *  name, void(*)(uint8_t *dest, ptrdiff_t line_size, int16_t *block)  idct248_put, int  speed  )

static

Definition at line 374 of file dct.c.

Referenced by main().

help()

static void help ( void  )

static

Definition at line 451 of file dct.c.

Referenced by main().

main()

int main	(	int	argc,
		char **	argv
	)

Definition at line 467 of file dct.c.

Variable Documentation

fdct_tab

const struct algo fdct_tab[]

static

Initial value:

= {
    { "REF-DBL",     ff_ref_fdct,          FF_IDCT_PERM_NONE },
    { "IJG-AAN-INT", ff_fdct_ifast,        FF_IDCT_PERM_NONE },
    { "IJG-LLM-INT", ff_jpeg_fdct_islow_8, FF_IDCT_PERM_NONE },
 
 
 
}

Definition at line 61 of file dct.c.

Referenced by main().

idct_tab

const struct algo idct_tab[]

static

Initial value:

= {
    { "REF-DBL",     ff_ref_idct,          FF_IDCT_PERM_NONE },
    { "INT",         ff_j_rev_dct,         FF_IDCT_PERM_LIBMPEG2 },
    { "SIMPLE-C",    ff_simple_idct_int16_8bit,     FF_IDCT_PERM_NONE },
    { "SIMPLE-C10",  ff_simple_idct_int16_10bit,    FF_IDCT_PERM_NONE },
    { "SIMPLE-C12",  ff_simple_idct_int16_12bit,    FF_IDCT_PERM_NONE, 0, 1 },
    { "PR-C",        ff_prores_idct_wrap,  FF_IDCT_PERM_NONE, 0, 1 },
 
 
 
 
 
 
}

Definition at line 83 of file dct.c.

Referenced by main().

fdct_tab_arch

const struct algo fdct_tab_arch[] = { { 0 } }

static

Definition at line 107 of file dct.c.

Referenced by main().

idct_tab_arch

const struct algo idct_tab_arch[] = { { 0 } }

static

Definition at line 108 of file dct.c.

Referenced by main().

block

int16_t block[64]

static

Definition at line 116 of file dct.c.

Referenced by dct_error(), idct248_error(), idct248_ref(), and init_block().

block1

int16_t block1[64]

static

Definition at line 117 of file dct.c.

Referenced by check_luma_dc_wht(), compare_blocks(), dct_error(), dv_decode_video_segment(), ff_denoise_dct_mmi(), ff_h264_weight_pixels16_8_mmi(), ff_wmv2_add_mb(), idct248_error(), idct248_ref(), process_anticollapse(), put_blocks(), run_single_test(), run_test(), and wmv2_add_block().

img_dest

uint8_t img_dest[64]

static

Definition at line 291 of file dct.c.

Referenced by idct248_error().

img_dest1

uint8_t img_dest1[64]

static

Definition at line 292 of file dct.c.

Referenced by idct248_error().