FFmpeg
Macros | Functions | Variables
me_cmp.c File Reference
#include "libavutil/attributes.h"
#include "libavutil/internal.h"
#include "avcodec.h"
#include "copy_block.h"
#include "simple_idct.h"
#include "me_cmp.h"
#include "mpegvideo.h"
#include "config.h"

Go to the source code of this file.

Macros

#define avg2(a, b)   (((a) + (b) + 1) >> 1)
 
#define avg4(a, b, c, d)   (((a) + (b) + (c) + (d) + 2) >> 2)
 
#define V(x)   (pix1[x] - pix2[x])
 
#define V(x)   (pix1[x] - pix2[x])
 
#define BUTTERFLY2(o1, o2, i1, i2)
 
#define BUTTERFLY1(x, y)
 
#define BUTTERFLYA(x, y)   (FFABS((x) + (y)) + FFABS((x) - (y)))
 
#define VSAD_INTRA(size)
 
#define VSAD(size)
 
#define SQ(a)   ((a) * (a))
 
#define VSSE_INTRA(size)
 
#define VSSE(size)
 
#define WRAPPER8_16_SQ(name8, name16)
 
#define SET_CMP_FUNC(name)
 

Functions

static int sse4_c (MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
 
static int sse8_c (MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
 
static int sse16_c (MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
 
static int sum_abs_dctelem_c (int16_t *block)
 
static int pix_abs16_c (MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
 
static int pix_median_abs16_c (MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
 
static int pix_abs16_x2_c (MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
 
static int pix_abs16_y2_c (MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
 
static int pix_abs16_xy2_c (MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
 
static int pix_abs8_c (MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
 
static int pix_median_abs8_c (MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
 
static int pix_abs8_x2_c (MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
 
static int pix_abs8_y2_c (MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
 
static int pix_abs8_xy2_c (MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
 
static int nsse16_c (MpegEncContext *c, uint8_t *s1, uint8_t *s2, ptrdiff_t stride, int h)
 
static int nsse8_c (MpegEncContext *c, uint8_t *s1, uint8_t *s2, ptrdiff_t stride, int h)
 
static int zero_cmp (MpegEncContext *s, uint8_t *a, uint8_t *b, ptrdiff_t stride, int h)
 
void ff_set_cmp (MECmpContext *c, me_cmp_func *cmp, int type)
 
static int hadamard8_diff8x8_c (MpegEncContext *s, uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h)
 
static int hadamard8_intra8x8_c (MpegEncContext *s, uint8_t *src, uint8_t *dummy, ptrdiff_t stride, int h)
 
static int dct_sad8x8_c (MpegEncContext *s, uint8_t *src1, uint8_t *src2, ptrdiff_t stride, int h)
 
static int dct_max8x8_c (MpegEncContext *s, uint8_t *src1, uint8_t *src2, ptrdiff_t stride, int h)
 
static int quant_psnr8x8_c (MpegEncContext *s, uint8_t *src1, uint8_t *src2, ptrdiff_t stride, int h)
 
static int rd8x8_c (MpegEncContext *s, uint8_t *src1, uint8_t *src2, ptrdiff_t stride, int h)
 
static int bit8x8_c (MpegEncContext *s, uint8_t *src1, uint8_t *src2, ptrdiff_t stride, int h)
 
int ff_check_alignment (void)
 
av_cold void ff_me_cmp_init (MECmpContext *c, AVCodecContext *avctx)
 

Variables

const uint32_t ff_square_tab [512]
 

Macro Definition Documentation

◆ avg2

#define avg2 (   a,
  b 
)    (((a) + (b) + 1) >> 1)

Definition at line 145 of file me_cmp.c.

◆ avg4

#define avg4 (   a,
  b,
  c,
  d 
)    (((a) + (b) + (c) + (d) + 2) >> 2)

Definition at line 146 of file me_cmp.c.

◆ V [1/2]

#define V (   x)    (pix1[x] - pix2[x])

◆ V [2/2]

#define V (   x)    (pix1[x] - pix2[x])

◆ BUTTERFLY2

#define BUTTERFLY2 (   o1,
  o2,
  i1,
  i2 
)
Value:
o1 = (i1) + (i2); \
o2 = (i1) - (i2);

Definition at line 539 of file me_cmp.c.

◆ BUTTERFLY1

#define BUTTERFLY1 (   x,
  y 
)
Value:
{ \
int a, b; \
a = x; \
b = y; \
x = a + b; \
y = a - b; \
}

Definition at line 543 of file me_cmp.c.

◆ BUTTERFLYA

#define BUTTERFLYA (   x,
  y 
)    (FFABS((x) + (y)) + FFABS((x) - (y)))

Definition at line 552 of file me_cmp.c.

◆ VSAD_INTRA

#define VSAD_INTRA (   size)
Value:
static int vsad_intra ## size ## _c(MpegEncContext *c, \
uint8_t *s, uint8_t *dummy, \
ptrdiff_t stride, int h) \
{ \
int score = 0, x, y; \
\
for (y = 1; y < h; y++) { \
for (x = 0; x < size; x += 4) { \
score += FFABS(s[x] - s[x + stride]) + \
FFABS(s[x + 1] - s[x + stride + 1]) + \
FFABS(s[x + 2] - s[x + 2 + stride]) + \
FFABS(s[x + 3] - s[x + 3 + stride]); \
} \
s += stride; \
} \
\
return score; \
}

Definition at line 904 of file me_cmp.c.

◆ VSAD

#define VSAD (   size)
Value:
static int vsad ## size ## _c(MpegEncContext *c, \
uint8_t *s1, uint8_t *s2, \
ptrdiff_t stride, int h) \
{ \
int score = 0, x, y; \
\
for (y = 1; y < h; y++) { \
for (x = 0; x < size; x++) \
score += FFABS(s1[x] - s2[x] - s1[x + stride] + s2[x + stride]); \
s1 += stride; \
s2 += stride; \
} \
\
return score; \
}

Definition at line 926 of file me_cmp.c.

◆ SQ

#define SQ (   a)    ((a) * (a))

Definition at line 945 of file me_cmp.c.

◆ VSSE_INTRA

#define VSSE_INTRA (   size)
Value:
static int vsse_intra ## size ## _c(MpegEncContext *c, \
uint8_t *s, uint8_t *dummy, \
ptrdiff_t stride, int h) \
{ \
int score = 0, x, y; \
\
for (y = 1; y < h; y++) { \
for (x = 0; x < size; x += 4) { \
score += SQ(s[x] - s[x + stride]) + \
SQ(s[x + 1] - s[x + stride + 1]) + \
SQ(s[x + 2] - s[x + stride + 2]) + \
SQ(s[x + 3] - s[x + stride + 3]); \
} \
s += stride; \
} \
\
return score; \
}

Definition at line 946 of file me_cmp.c.

◆ VSSE

#define VSSE (   size)
Value:
static int vsse ## size ## _c(MpegEncContext *c, uint8_t *s1, uint8_t *s2, \
ptrdiff_t stride, int h) \
{ \
int score = 0, x, y; \
\
for (y = 1; y < h; y++) { \
for (x = 0; x < size; x++) \
score += SQ(s1[x] - s2[x] - s1[x + stride] + s2[x + stride]); \
s1 += stride; \
s2 += stride; \
} \
\
return score; \
}

Definition at line 968 of file me_cmp.c.

◆ WRAPPER8_16_SQ

#define WRAPPER8_16_SQ (   name8,
  name16 
)
Value:
static int name16(MpegEncContext *s, uint8_t *dst, uint8_t *src, \
ptrdiff_t stride, int h) \
{ \
int score = 0; \
\
score += name8(s, dst, src, stride, 8); \
score += name8(s, dst + 8, src + 8, stride, 8); \
if (h == 16) { \
dst += 8 * stride; \
src += 8 * stride; \
score += name8(s, dst, src, stride, 8); \
score += name8(s, dst + 8, src + 8, stride, 8); \
} \
return score; \
}

Definition at line 986 of file me_cmp.c.

◆ SET_CMP_FUNC

#define SET_CMP_FUNC (   name)
Value:
c->name[0] = name ## 16_c; \
c->name[1] = name ## 8x8_c;

Function Documentation

◆ sse4_c()

static int sse4_c ( MpegEncContext *  v,
uint8_t *  pix1,
uint8_t *  pix2,
ptrdiff_t  stride,
int  h 
)
static

Definition at line 68 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ sse8_c()

static int sse8_c ( MpegEncContext *  v,
uint8_t *  pix1,
uint8_t *  pix2,
ptrdiff_t  stride,
int  h 
)
static

Definition at line 85 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ sse16_c()

static int sse16_c ( MpegEncContext *  v,
uint8_t *  pix1,
uint8_t *  pix2,
ptrdiff_t  stride,
int  h 
)
static

Definition at line 106 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ sum_abs_dctelem_c()

static int sum_abs_dctelem_c ( int16_t *  block)
static

Definition at line 136 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ pix_abs16_c()

static int pix_abs16_c ( MpegEncContext *  v,
uint8_t *  pix1,
uint8_t *  pix2,
ptrdiff_t  stride,
int  h 
)
inlinestatic

Definition at line 148 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ pix_median_abs16_c()

static int pix_median_abs16_c ( MpegEncContext *  v,
uint8_t *  pix1,
uint8_t *  pix2,
ptrdiff_t  stride,
int  h 
)
inlinestatic

Definition at line 176 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ pix_abs16_x2_c()

static int pix_abs16_x2_c ( MpegEncContext *  v,
uint8_t *  pix1,
uint8_t *  pix2,
ptrdiff_t  stride,
int  h 
)
static

Definition at line 215 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ pix_abs16_y2_c()

static int pix_abs16_y2_c ( MpegEncContext *  v,
uint8_t *  pix1,
uint8_t *  pix2,
ptrdiff_t  stride,
int  h 
)
static

Definition at line 243 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ pix_abs16_xy2_c()

static int pix_abs16_xy2_c ( MpegEncContext *  v,
uint8_t *  pix1,
uint8_t *  pix2,
ptrdiff_t  stride,
int  h 
)
static

Definition at line 273 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ pix_abs8_c()

static int pix_abs8_c ( MpegEncContext *  v,
uint8_t *  pix1,
uint8_t *  pix2,
ptrdiff_t  stride,
int  h 
)
inlinestatic

Definition at line 303 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ pix_median_abs8_c()

static int pix_median_abs8_c ( MpegEncContext *  v,
uint8_t *  pix1,
uint8_t *  pix2,
ptrdiff_t  stride,
int  h 
)
inlinestatic

Definition at line 323 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ pix_abs8_x2_c()

static int pix_abs8_x2_c ( MpegEncContext *  v,
uint8_t *  pix1,
uint8_t *  pix2,
ptrdiff_t  stride,
int  h 
)
static

Definition at line 354 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ pix_abs8_y2_c()

static int pix_abs8_y2_c ( MpegEncContext *  v,
uint8_t *  pix1,
uint8_t *  pix2,
ptrdiff_t  stride,
int  h 
)
static

Definition at line 374 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ pix_abs8_xy2_c()

static int pix_abs8_xy2_c ( MpegEncContext *  v,
uint8_t *  pix1,
uint8_t *  pix2,
ptrdiff_t  stride,
int  h 
)
static

Definition at line 396 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ nsse16_c()

static int nsse16_c ( MpegEncContext *  c,
uint8_t *  s1,
uint8_t *  s2,
ptrdiff_t  stride,
int  h 
)
static

Definition at line 418 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ nsse8_c()

static int nsse8_c ( MpegEncContext *  c,
uint8_t *  s1,
uint8_t *  s2,
ptrdiff_t  stride,
int  h 
)
static

Definition at line 443 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ zero_cmp()

static int zero_cmp ( MpegEncContext *  s,
uint8_t *  a,
uint8_t *  b,
ptrdiff_t  stride,
int  h 
)
static

Definition at line 468 of file me_cmp.c.

Referenced by ff_set_cmp().

◆ ff_set_cmp()

void ff_set_cmp ( MECmpContext *  c,
me_cmp_func *  cmp,
int  type 
)

Definition at line 474 of file me_cmp.c.

Referenced by dvvideo_encode_init(), encode_init(), ff_init_me(), and ff_mpv_encode_init().

◆ hadamard8_diff8x8_c()

static int hadamard8_diff8x8_c ( MpegEncContext *  s,
uint8_t *  dst,
uint8_t *  src,
ptrdiff_t  stride,
int  h 
)
static

Definition at line 554 of file me_cmp.c.

◆ hadamard8_intra8x8_c()

static int hadamard8_intra8x8_c ( MpegEncContext *  s,
uint8_t *  src,
uint8_t *  dummy,
ptrdiff_t  stride,
int  h 
)
static

Definition at line 606 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ dct_sad8x8_c()

static int dct_sad8x8_c ( MpegEncContext *  s,
uint8_t *  src1,
uint8_t *  src2,
ptrdiff_t  stride,
int  h 
)
static

Definition at line 658 of file me_cmp.c.

◆ dct_max8x8_c()

static int dct_max8x8_c ( MpegEncContext *  s,
uint8_t *  src1,
uint8_t *  src2,
ptrdiff_t  stride,
int  h 
)
static

Definition at line 724 of file me_cmp.c.

◆ quant_psnr8x8_c()

static int quant_psnr8x8_c ( MpegEncContext *  s,
uint8_t *  src1,
uint8_t *  src2,
ptrdiff_t  stride,
int  h 
)
static

Definition at line 741 of file me_cmp.c.

◆ rd8x8_c()

static int rd8x8_c ( MpegEncContext *  s,
uint8_t *  src1,
uint8_t *  src2,
ptrdiff_t  stride,
int  h 
)
static

Definition at line 766 of file me_cmp.c.

◆ bit8x8_c()

static int bit8x8_c ( MpegEncContext *  s,
uint8_t *  src1,
uint8_t *  src2,
ptrdiff_t  stride,
int  h 
)
static

Definition at line 843 of file me_cmp.c.

◆ ff_check_alignment()

int ff_check_alignment ( void  )

Definition at line 1014 of file me_cmp.c.

Referenced by encode_thread(), estimate_motion_thread(), ff_me_cmp_init(), and mb_var_thread().

◆ ff_me_cmp_init()

av_cold void ff_me_cmp_init ( MECmpContext *  c,
AVCodecContext *  avctx 
)

Definition at line 1035 of file me_cmp.c.

Referenced by dvvideo_encode_init(), ff_ac3_encode_init(), ff_er_frame_start(), ff_mpv_encode_init(), main(), mca(), and svq1_encode_init().

Variable Documentation

◆ ff_square_tab

const uint32_t ff_square_tab[512]

Definition at line 33 of file me_cmp.c.

Referenced by pix_norm1(), pix_norm1_c(), sse(), sse16_c(), sse4_c(), and sse8_c().

stride
int stride
Definition: mace.c:144
name
const char * name
Definition: avisynth_c.h:867
b
#define b
Definition: input.c:41
src
#define src
Definition: vp8dsp.c:254
s
#define s(width, name)
Definition: cbs_vp9.c:257
s1
#define s1
Definition: regdef.h:38
FFABS
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
SQ
#define SQ(a)
Definition: me_cmp.c:945
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
for
for(j=16;j >0;--j)
Definition: h264pred_template.c:469
s2
#define s2
Definition: regdef.h:39
size
int size
Definition: twinvq_data.h:11134
a
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:41
uint8_t
uint8_t
Definition: audio_convert.c:194
dummy
int dummy
Definition: motion.c:64
h
h
Definition: vp9dsp_template.c:2038
MpegEncContext
MpegEncContext.
Definition: mpegvideo.h:81
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