FFmpeg
Macros | Functions | Variables
me_cmp.c File Reference
#include "libavutil/attributes.h"
#include "libavutil/internal.h"
#include "libavutil/mem_internal.h"
#include "avcodec.h"
#include "copy_block.h"
#include "simple_idct.h"
#include "me_cmp.h"
#include "mpegvideoenc.h"
#include "config.h"
#include "config_components.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, const uint8_t *pix1, const uint8_t *pix2, ptrdiff_t stride, int h)
 
static int sse8_c (MpegEncContext *v, const uint8_t *pix1, const uint8_t *pix2, ptrdiff_t stride, int h)
 
static int sse16_c (MpegEncContext *v, const uint8_t *pix1, const uint8_t *pix2, ptrdiff_t stride, int h)
 
static int sum_abs_dctelem_c (const int16_t *block)
 
static int pix_abs16_c (MpegEncContext *v, const uint8_t *pix1, const uint8_t *pix2, ptrdiff_t stride, int h)
 
static int pix_median_abs16_c (MpegEncContext *v, const uint8_t *pix1, const uint8_t *pix2, ptrdiff_t stride, int h)
 
static int pix_abs16_x2_c (MpegEncContext *v, const uint8_t *pix1, const uint8_t *pix2, ptrdiff_t stride, int h)
 
static int pix_abs16_y2_c (MpegEncContext *v, const uint8_t *pix1, const uint8_t *pix2, ptrdiff_t stride, int h)
 
static int pix_abs16_xy2_c (MpegEncContext *v, const uint8_t *pix1, const uint8_t *pix2, ptrdiff_t stride, int h)
 
static int pix_abs8_c (MpegEncContext *v, const uint8_t *pix1, const uint8_t *pix2, ptrdiff_t stride, int h)
 
static int pix_median_abs8_c (MpegEncContext *v, const uint8_t *pix1, const uint8_t *pix2, ptrdiff_t stride, int h)
 
static int pix_abs8_x2_c (MpegEncContext *v, const uint8_t *pix1, const uint8_t *pix2, ptrdiff_t stride, int h)
 
static int pix_abs8_y2_c (MpegEncContext *v, const uint8_t *pix1, const uint8_t *pix2, ptrdiff_t stride, int h)
 
static int pix_abs8_xy2_c (MpegEncContext *v, const uint8_t *pix1, const uint8_t *pix2, ptrdiff_t stride, int h)
 
static int nsse16_c (MpegEncContext *c, const uint8_t *s1, const uint8_t *s2, ptrdiff_t stride, int h)
 
static int nsse8_c (MpegEncContext *c, const uint8_t *s1, const uint8_t *s2, ptrdiff_t stride, int h)
 
static int zero_cmp (MpegEncContext *s, const uint8_t *a, const uint8_t *b, ptrdiff_t stride, int h)
 
int ff_set_cmp (MECmpContext *c, me_cmp_func *cmp, int type)
 
static int hadamard8_diff8x8_c (MpegEncContext *s, const uint8_t *dst, const uint8_t *src, ptrdiff_t stride, int h)
 
static int hadamard8_intra8x8_c (MpegEncContext *s, const uint8_t *src, const uint8_t *dummy, ptrdiff_t stride, int h)
 
static int dct_sad8x8_c (MpegEncContext *s, const uint8_t *src1, const uint8_t *src2, ptrdiff_t stride, int h)
 
static int dct_max8x8_c (MpegEncContext *s, const uint8_t *src1, const uint8_t *src2, ptrdiff_t stride, int h)
 
static int quant_psnr8x8_c (MpegEncContext *s, const uint8_t *src1, const uint8_t *src2, ptrdiff_t stride, int h)
 
static int rd8x8_c (MpegEncContext *s, const uint8_t *src1, const uint8_t *src2, ptrdiff_t stride, int h)
 
static int bit8x8_c (MpegEncContext *s, const uint8_t *src1, const uint8_t *src2, ptrdiff_t stride, int h)
 
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 147 of file me_cmp.c.

◆ avg4

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

Definition at line 148 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 546 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 550 of file me_cmp.c.

◆ BUTTERFLYA

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

Definition at line 559 of file me_cmp.c.

◆ VSAD_INTRA

#define VSAD_INTRA (   size)
Value:
static int vsad_intra ## size ## _c(MpegEncContext *c, \
const uint8_t *s, const 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 898 of file me_cmp.c.

◆ VSAD

#define VSAD (   size)
Value:
static int vsad ## size ## _c(MpegEncContext *c, \
const uint8_t *s1, const 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 920 of file me_cmp.c.

◆ SQ

#define SQ (   a)    ((a) * (a))

Definition at line 939 of file me_cmp.c.

◆ VSSE_INTRA

#define VSSE_INTRA (   size)
Value:
static int vsse_intra ## size ## _c(MpegEncContext *c, \
const uint8_t *s, const 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 940 of file me_cmp.c.

◆ VSSE

#define VSSE (   size)
Value:
static int vsse ## size ## _c(MpegEncContext *c, const uint8_t *s1, const 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 962 of file me_cmp.c.

◆ WRAPPER8_16_SQ

#define WRAPPER8_16_SQ (   name8,
  name16 
)
Value:
static int name16(MpegEncContext *s, const uint8_t *dst, const 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 980 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,
const uint8_t *  pix1,
const uint8_t *  pix2,
ptrdiff_t  stride,
int  h 
)
static

Definition at line 70 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ sse8_c()

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

Definition at line 87 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ sse16_c()

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

Definition at line 108 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ sum_abs_dctelem_c()

static int sum_abs_dctelem_c ( const int16_t *  block)
static

Definition at line 138 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ pix_abs16_c()

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

Definition at line 150 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ pix_median_abs16_c()

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

Definition at line 178 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ pix_abs16_x2_c()

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

Definition at line 217 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ pix_abs16_y2_c()

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

Definition at line 245 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ pix_abs16_xy2_c()

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

Definition at line 275 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ pix_abs8_c()

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

Definition at line 305 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ pix_median_abs8_c()

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

Definition at line 325 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ pix_abs8_x2_c()

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

Definition at line 356 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ pix_abs8_y2_c()

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

Definition at line 376 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ pix_abs8_xy2_c()

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

Definition at line 398 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ nsse16_c()

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

Definition at line 420 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ nsse8_c()

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

Definition at line 445 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ zero_cmp()

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

Definition at line 470 of file me_cmp.c.

Referenced by ff_set_cmp().

◆ ff_set_cmp()

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

Definition at line 476 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,
const uint8_t *  dst,
const uint8_t *  src,
ptrdiff_t  stride,
int  h 
)
static

Definition at line 561 of file me_cmp.c.

◆ hadamard8_intra8x8_c()

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

Definition at line 611 of file me_cmp.c.

Referenced by ff_me_cmp_init().

◆ dct_sad8x8_c()

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

Definition at line 661 of file me_cmp.c.

◆ dct_max8x8_c()

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

Definition at line 725 of file me_cmp.c.

◆ quant_psnr8x8_c()

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

Definition at line 740 of file me_cmp.c.

◆ rd8x8_c()

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

Definition at line 764 of file me_cmp.c.

◆ bit8x8_c()

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

Definition at line 839 of file me_cmp.c.

◆ ff_me_cmp_init()

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

Definition at line 1008 of file me_cmp.c.

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

Variable Documentation

◆ ff_square_tab

const uint32_t ff_square_tab[512]

Definition at line 35 of file me_cmp.c.

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

name
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default minimum maximum flags name is the option name
Definition: writing_filters.txt:88
b
#define b
Definition: input.c:41
dummy
int dummy
Definition: motion.c:66
s
#define s(width, name)
Definition: cbs_vp9.c:198
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:939
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
s2
#define s2
Definition: regdef.h:39
for
for(k=2;k<=8;++k)
Definition: h264pred_template.c:425
size
int size
Definition: twinvq_data.h:10344
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
stride
#define stride
Definition: h264pred_template.c:537
src
INIT_CLIP pixel * src
Definition: h264pred_template.c:418
h
h
Definition: vp9dsp_template.c:2038
MpegEncContext
MpegEncContext.
Definition: mpegvideo.h:67
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