FFmpeg  4.3
Macros | Functions | Variables
vp8dsp.c File Reference
#include "libavutil/common.h"
#include "libavutil/intreadwrite.h"
#include "mathops.h"
#include "vp8dsp.h"

Go to the source code of this file.

Macros

#define MK_IDCT_DC_ADD4_C(name)
 
#define LOAD_PIXELS
 
#define clip_int8(n)   (cm[(n) + 0x80] - 0x80)
 
#define NORMAL_LIMIT(vpn)
 E - limit at the macroblock edge I - limit for interior difference. More...
 
#define LOOP_FILTER(vpn, dir, size, stridea, strideb, maybe_inline)
 
#define UV_LOOP_FILTER(vpn, dir, stridea, strideb)
 
#define LOOP_FILTER_SIMPLE(vpn)
 
#define LOOP_FILTERS(vpn)
 
#define PUT_PIXELS(WIDTH)
 
#define FILTER_6TAP(src, F, stride)
 
#define FILTER_4TAP(src, F, stride)
 
#define VP8_EPEL_H(SIZE, TAPS)
 
#define VP8_EPEL_V(SIZE, TAPS)
 
#define VP8_EPEL_HV(SIZE, HTAPS, VTAPS)
 
#define VP8_BILINEAR(SIZE)
 
#define VP78_MC_FUNC(IDX, SIZE)
 
#define VP78_BILINEAR_MC_FUNC(IDX, SIZE)
 

Functions

static av_always_inline void filter_common (uint8_t *p, ptrdiff_t stride, int is4tap, int is_vp7)
 
static av_always_inline void vp7_filter_common (uint8_t *p, ptrdiff_t stride, int is4tap)
 
static av_always_inline void vp8_filter_common (uint8_t *p, ptrdiff_t stride, int is4tap)
 
static av_always_inline int vp7_simple_limit (uint8_t *p, ptrdiff_t stride, int flim)
 
static av_always_inline int vp8_simple_limit (uint8_t *p, ptrdiff_t stride, int flim)
 
static av_always_inline int hev (uint8_t *p, ptrdiff_t stride, int thresh)
 
static av_always_inline void filter_mbedge (uint8_t *p, ptrdiff_t stride)
 
av_cold void ff_vp78dsp_init (VP8DSPContext *dsp)
 

Variables

static const uint8_t subpel_filters [7][6]
 

Detailed Description

VP8 compatible video decoder

Definition in file vp8dsp.c.

Macro Definition Documentation

◆ MK_IDCT_DC_ADD4_C

#define MK_IDCT_DC_ADD4_C (   name)
Value:
static void name ## _idct_dc_add4uv_c(uint8_t *dst, int16_t block[4][16], \
ptrdiff_t stride) \
{ \
name ## _idct_dc_add_c(dst + stride * 0 + 0, block[0], stride); \
name ## _idct_dc_add_c(dst + stride * 0 + 4, block[1], stride); \
name ## _idct_dc_add_c(dst + stride * 4 + 0, block[2], stride); \
name ## _idct_dc_add_c(dst + stride * 4 + 4, block[3], stride); \
} \
\
static void name ## _idct_dc_add4y_c(uint8_t *dst, int16_t block[4][16], \
ptrdiff_t stride) \
{ \
name ## _idct_dc_add_c(dst + 0, block[0], stride); \
name ## _idct_dc_add_c(dst + 4, block[1], stride); \
name ## _idct_dc_add_c(dst + 8, block[2], stride); \
name ## _idct_dc_add_c(dst + 12, block[3], stride); \
}

Definition at line 34 of file vp8dsp.c.

◆ LOAD_PIXELS

#define LOAD_PIXELS
Value:
int av_unused p3 = p[-4 * stride]; \
int av_unused p2 = p[-3 * stride]; \
int av_unused p1 = p[-2 * stride]; \
int av_unused p0 = p[-1 * stride]; \
int av_unused q0 = p[ 0 * stride]; \
int av_unused q1 = p[ 1 * stride]; \
int av_unused q2 = p[ 2 * stride]; \
int av_unused q3 = p[ 3 * stride];

Definition at line 249 of file vp8dsp.c.

◆ clip_int8

#define clip_int8 (   n)    (cm[(n) + 0x80] - 0x80)

Definition at line 259 of file vp8dsp.c.

◆ NORMAL_LIMIT

#define NORMAL_LIMIT (   vpn)
Value:
static av_always_inline int vp ## vpn ## _normal_limit(uint8_t *p, \
ptrdiff_t stride, \
int E, int I) \
{ \
LOAD_PIXELS \
return vp ## vpn ## _simple_limit(p, stride, E) && \
FFABS(p3 - p2) <= I && FFABS(p2 - p1) <= I && \
FFABS(p1 - p0) <= I && FFABS(q3 - q2) <= I && \
FFABS(q2 - q1) <= I && FFABS(q1 - q0) <= I; \
}

E - limit at the macroblock edge I - limit for interior difference.

Definition at line 327 of file vp8dsp.c.

◆ LOOP_FILTER

#define LOOP_FILTER (   vpn,
  dir,
  size,
  stridea,
  strideb,
  maybe_inline 
)

Definition at line 371 of file vp8dsp.c.

◆ UV_LOOP_FILTER

#define UV_LOOP_FILTER (   vpn,
  dir,
  stridea,
  strideb 
)
Value:
LOOP_FILTER(vpn, dir, 8, stridea, strideb, av_always_inline) \
static void vpn ## _ ## dir ## _loop_filter8uv_c(uint8_t *dstU, \
uint8_t *dstV, \
ptrdiff_t stride, int fE, \
int fI, int hev_thresh) \
{ \
vpn ## _ ## dir ## _loop_filter8_c(dstU, stride, fE, fI, hev_thresh); \
vpn ## _ ## dir ## _loop_filter8_c(dstV, stride, fE, fI, hev_thresh); \
} \
\
static void vpn ## _ ## dir ## _loop_filter8uv_inner_c(uint8_t *dstU, \
uint8_t *dstV, \
ptrdiff_t stride, \
int fE, int fI, \
int hev_thresh) \
{ \
vpn ## _ ## dir ## _loop_filter8_inner_c(dstU, stride, fE, fI, \
hev_thresh); \
vpn ## _ ## dir ## _loop_filter8_inner_c(dstV, stride, fE, fI, \
hev_thresh); \
}

Definition at line 408 of file vp8dsp.c.

◆ LOOP_FILTER_SIMPLE

#define LOOP_FILTER_SIMPLE (   vpn)
Value:
static void vpn ## _v_loop_filter_simple_c(uint8_t *dst, ptrdiff_t stride, \
int flim) \
{ \
int i; \
for (i = 0; i < 16; i++) \
if (vpn ## _simple_limit(dst + i, stride, flim)) \
vpn ## _filter_common(dst + i, stride, 1); \
} \
\
static void vpn ## _h_loop_filter_simple_c(uint8_t *dst, ptrdiff_t stride, \
int flim) \
{ \
int i; \
for (i = 0; i < 16; i++) \
if (vpn ## _simple_limit(dst + i * stride, 1, flim)) \
vpn ## _filter_common(dst + i * stride, 1, 1); \
}

Definition at line 431 of file vp8dsp.c.

◆ LOOP_FILTERS

#define LOOP_FILTERS (   vpn)
Value:
LOOP_FILTER(vpn, v, 16, 1, stride, ) \
LOOP_FILTER(vpn, h, 16, stride, 1, ) \
UV_LOOP_FILTER(vpn, v, 1, stride) \
UV_LOOP_FILTER(vpn, h, stride, 1) \
LOOP_FILTER_SIMPLE(vpn) \

Definition at line 450 of file vp8dsp.c.

◆ PUT_PIXELS

#define PUT_PIXELS (   WIDTH)
Value:
static void put_vp8_pixels ## WIDTH ## _c(uint8_t *dst, ptrdiff_t dststride, \
uint8_t *src, ptrdiff_t srcstride, \
int h, int x, int y) \
{ \
int i; \
for (i = 0; i < h; i++, dst += dststride, src += srcstride) \
memcpy(dst, src, WIDTH); \
}

Definition at line 467 of file vp8dsp.c.

◆ FILTER_6TAP

#define FILTER_6TAP (   src,
  F,
  stride 
)
Value:
cm[(F[2] * src[x + 0 * stride] - F[1] * src[x - 1 * stride] + \
F[0] * src[x - 2 * stride] + F[3] * src[x + 1 * stride] - \
F[4] * src[x + 2 * stride] + F[5] * src[x + 3 * stride] + 64) >> 7]

Definition at line 481 of file vp8dsp.c.

◆ FILTER_4TAP

#define FILTER_4TAP (   src,
  F,
  stride 
)
Value:
cm[(F[2] * src[x + 0 * stride] - F[1] * src[x - 1 * stride] + \
F[3] * src[x + 1 * stride] - F[4] * src[x + 2 * stride] + 64) >> 7]

Definition at line 486 of file vp8dsp.c.

◆ VP8_EPEL_H

#define VP8_EPEL_H (   SIZE,
  TAPS 
)
Value:
static void put_vp8_epel ## SIZE ## _h ## TAPS ## _c(uint8_t *dst, \
ptrdiff_t dststride, \
ptrdiff_t srcstride, \
int h, int mx, int my) \
{ \
const uint8_t *filter = subpel_filters[mx - 1]; \
int x, y; \
for (y = 0; y < h; y++) { \
for (x = 0; x < SIZE; x++) \
dst[x] = FILTER_ ## TAPS ## TAP(src, filter, 1); \
dst += dststride; \
src += srcstride; \
} \
}

Definition at line 490 of file vp8dsp.c.

◆ VP8_EPEL_V

#define VP8_EPEL_V (   SIZE,
  TAPS 
)
Value:
static void put_vp8_epel ## SIZE ## _v ## TAPS ## _c(uint8_t *dst, \
ptrdiff_t dststride, \
ptrdiff_t srcstride, \
int h, int mx, int my) \
{ \
const uint8_t *filter = subpel_filters[my - 1]; \
int x, y; \
for (y = 0; y < h; y++) { \
for (x = 0; x < SIZE; x++) \
dst[x] = FILTER_ ## TAPS ## TAP(src, filter, srcstride); \
dst += dststride; \
src += srcstride; \
} \
}

Definition at line 508 of file vp8dsp.c.

◆ VP8_EPEL_HV

#define VP8_EPEL_HV (   SIZE,
  HTAPS,
  VTAPS 
)

Definition at line 526 of file vp8dsp.c.

◆ VP8_BILINEAR

#define VP8_BILINEAR (   SIZE)

Definition at line 585 of file vp8dsp.c.

◆ VP78_MC_FUNC

#define VP78_MC_FUNC (   IDX,
  SIZE 
)
Value:
dsp->put_vp8_epel_pixels_tab[IDX][0][0] = put_vp8_pixels ## SIZE ## _c; \
dsp->put_vp8_epel_pixels_tab[IDX][0][1] = put_vp8_epel ## SIZE ## _h4_c; \
dsp->put_vp8_epel_pixels_tab[IDX][0][2] = put_vp8_epel ## SIZE ## _h6_c; \
dsp->put_vp8_epel_pixels_tab[IDX][1][0] = put_vp8_epel ## SIZE ## _v4_c; \
dsp->put_vp8_epel_pixels_tab[IDX][1][1] = put_vp8_epel ## SIZE ## _h4v4_c; \
dsp->put_vp8_epel_pixels_tab[IDX][1][2] = put_vp8_epel ## SIZE ## _h6v4_c; \
dsp->put_vp8_epel_pixels_tab[IDX][2][0] = put_vp8_epel ## SIZE ## _v6_c; \
dsp->put_vp8_epel_pixels_tab[IDX][2][1] = put_vp8_epel ## SIZE ## _h4v6_c; \
dsp->put_vp8_epel_pixels_tab[IDX][2][2] = put_vp8_epel ## SIZE ## _h6v6_c

Definition at line 644 of file vp8dsp.c.

◆ VP78_BILINEAR_MC_FUNC

#define VP78_BILINEAR_MC_FUNC (   IDX,
  SIZE 
)
Value:
dsp->put_vp8_bilinear_pixels_tab[IDX][0][0] = put_vp8_pixels ## SIZE ## _c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][0][1] = put_vp8_bilinear ## SIZE ## _h_c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][0][2] = put_vp8_bilinear ## SIZE ## _h_c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][1][0] = put_vp8_bilinear ## SIZE ## _v_c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][1][1] = put_vp8_bilinear ## SIZE ## _hv_c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][1][2] = put_vp8_bilinear ## SIZE ## _hv_c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][2][0] = put_vp8_bilinear ## SIZE ## _v_c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][2][1] = put_vp8_bilinear ## SIZE ## _hv_c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][2][2] = put_vp8_bilinear ## SIZE ## _hv_c

Definition at line 655 of file vp8dsp.c.

Function Documentation

◆ filter_common()

static av_always_inline void filter_common ( uint8_t p,
ptrdiff_t  stride,
int  is4tap,
int  is_vp7 
)
static

Definition at line 261 of file vp8dsp.c.

Referenced by vp7_filter_common(), and vp8_filter_common().

◆ vp7_filter_common()

static av_always_inline void vp7_filter_common ( uint8_t p,
ptrdiff_t  stride,
int  is4tap 
)
static

Definition at line 297 of file vp8dsp.c.

◆ vp8_filter_common()

static av_always_inline void vp8_filter_common ( uint8_t p,
ptrdiff_t  stride,
int  is4tap 
)
static

Definition at line 303 of file vp8dsp.c.

◆ vp7_simple_limit()

static av_always_inline int vp7_simple_limit ( uint8_t p,
ptrdiff_t  stride,
int  flim 
)
static

Definition at line 309 of file vp8dsp.c.

◆ vp8_simple_limit()

static av_always_inline int vp8_simple_limit ( uint8_t p,
ptrdiff_t  stride,
int  flim 
)
static

Definition at line 316 of file vp8dsp.c.

◆ hev()

static av_always_inline int hev ( uint8_t p,
ptrdiff_t  stride,
int  thresh 
)
static

Definition at line 343 of file vp8dsp.c.

◆ filter_mbedge()

static av_always_inline void filter_mbedge ( uint8_t p,
ptrdiff_t  stride 
)
static

Definition at line 349 of file vp8dsp.c.

◆ ff_vp78dsp_init()

av_cold void ff_vp78dsp_init ( VP8DSPContext dsp)

Definition at line 666 of file vp8dsp.c.

Referenced by check_mc(), and vp78_decode_init().

Variable Documentation

◆ subpel_filters

const uint8_t subpel_filters[7][6]
static
stride
int stride
Definition: mace.c:144
q1
static const uint8_t q1[256]
Definition: twofish.c:96
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
av_unused
#define av_unused
Definition: attributes.h:131
F
#define F(x)
filter
filter_frame For filters that do not use the this method is called when a frame is pushed to the filter s input It can be called at any time except in a reentrant way If the input frame is enough to produce then the filter should push the output frames on the output link immediately As an exception to the previous rule if the input frame is enough to produce several output frames then the filter needs output only at least one per link The additional frames can be left buffered in the filter
Definition: filter_design.txt:228
ff_crop_tab
#define ff_crop_tab
Definition: motionpixels_tablegen.c:26
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
SIZE
#define SIZE
Definition: cabac.c:23
q0
static const uint8_t q0[256]
Definition: twofish.c:77
E
#define E
Definition: avdct.c:32
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
WIDTH
#define WIDTH
Definition: c93.c:43
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
av_always_inline
#define av_always_inline
Definition: attributes.h:49
uint8_t
uint8_t
Definition: audio_convert.c:194
cm
#define cm
Definition: dvbsubdec.c:37
LOOP_FILTER
#define LOOP_FILTER(vpn, dir, size, stridea, strideb, maybe_inline)
Definition: vp8dsp.c:371
_
#define _
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition: filter_design.txt:207
h
h
Definition: vp9dsp_template.c:2038
MAX_NEG_CROP
#define MAX_NEG_CROP
Definition: mathops.h:31
subpel_filters
static const uint8_t subpel_filters[7][6]
Definition: vp8dsp.c:457