FFmpeg  4.3
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,
 
)    (((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,
 
)
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,
 
)    (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, \
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, \
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, \
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 
)

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
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
x
FFmpeg Automated Testing Environment ************************************Introduction Using FATE from your FFmpeg source directory Submitting the results to the FFmpeg result aggregation server Uploading new samples to the fate suite FATE makefile targets and variables Makefile targets Makefile variables Examples Introduction **************FATE is an extended regression suite on the client side and a means for results aggregation and presentation on the server side The first part of this document explains how you can use FATE from your FFmpeg source directory to test your ffmpeg binary The second part describes how you can run FATE to submit the results to FFmpeg’s FATE server In any way you can have a look at the publicly viewable FATE results by visiting this as it can be seen if some test on some platform broke with their recent contribution This usually happens on the platforms the developers could not test on The second part of this document describes how you can run FATE to submit your results to FFmpeg’s FATE server If you want to submit your results be sure to check that your combination of OS and compiler is not already listed on the above mentioned website In the third part you can find a comprehensive listing of FATE makefile targets and variables Using FATE from your FFmpeg source directory **********************************************If you want to run FATE on your machine you need to have the samples in place You can get the samples via the build target fate rsync Use this command from the top level source this will cause FATE to fail NOTE To use a custom wrapper to run the pass ‘ target exec’ to ‘configure’ or set the TARGET_EXEC Make variable Submitting the results to the FFmpeg result aggregation server ****************************************************************To submit your results to the server you should run fate through the shell script ‘tests fate sh’ from the FFmpeg sources This script needs to be invoked with a configuration file as its first argument tests fate sh path to fate_config A configuration file template with comments describing the individual configuration variables can be found at ‘doc fate_config sh template’ Create a configuration that suits your based on the configuration template The ‘slot’ configuration variable can be any string that is not yet but it is suggested that you name it adhering to the following pattern ‘ARCH OS COMPILER COMPILER VERSION’ The configuration file itself will be sourced in a shell therefore all shell features may be used This enables you to setup the environment as you need it for your build For your first test runs the ‘fate_recv’ variable should be empty or commented out This will run everything as normal except that it will omit the submission of the results to the server The following files should be present in $workdir as specified in the configuration it may help to try out the ‘ssh’ command with one or more ‘ v’ options You should get detailed output concerning your SSH configuration and the authentication process The only thing left is to automate the execution of the fate sh script and the synchronisation of the samples directory Uploading new samples to the fate suite *****************************************If you need a sample uploaded send a mail to samples request This is for developers who have an account on the fate suite server If you upload new please make sure they are as small as space on each network bandwidth and so on benefit from smaller test cases Also keep in mind older checkouts use existing sample that means in practice generally do not remove or overwrite files as it likely would break older checkouts or releases Also all needed samples for a commit should be ideally before the push If you need an account for frequently uploading samples or you wish to help others by doing that send a mail to ffmpeg devel rsync vauL Duo x
Definition: fate.txt:150
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
src
#define src
Definition: vp8dsp.c:254
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