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Data Structures | Macros | Functions | Variables
vf_sab.c File Reference

Shape Adaptive Blur filter, ported from MPlayer libmpcodecs/vf_sab.c. More...

#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libswscale/swscale.h"
#include "avfilter.h"
#include "filters.h"
#include "video.h"

Go to the source code of this file.

Data Structures

struct  FilterParam
 
struct  SabContext
 

Macros

#define COLOR_DIFF_COEFF_SIZE   512
 
#define RADIUS_MIN   0.1
 
#define RADIUS_MAX   4.0
 
#define PRE_FILTER_RADIUS_MIN   0.1
 
#define PRE_FILTER_RADIUS_MAX   2.0
 
#define STRENGTH_MIN   0.1
 
#define STRENGTH_MAX   100.0
 
#define OFFSET(x)
 
#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
 
#define NB_PLANES   4
 
#define UPDATE_FACTOR
 

Functions

 AVFILTER_DEFINE_CLASS (sab)
 
static av_cold int init (AVFilterContext *ctx)
 
static void close_filter_param (FilterParam *f)
 
static av_cold void uninit (AVFilterContext *ctx)
 
static int open_filter_param (FilterParam *f, int width, int height, unsigned int sws_flags)
 
static int config_props (AVFilterLink *inlink)
 
static void blur (uint8_t *dst, const int dst_linesize, const uint8_t *src, const int src_linesize, const int w, const int h, FilterParam *fp)
 
static int filter_frame (AVFilterLink *inlink, AVFrame *inpic)
 

Variables

static enum AVPixelFormat pix_fmts []
 
static const AVOption sab_options []
 
static const AVFilterPad sab_inputs []
 
const FFFilter ff_vf_sab
 

Detailed Description

Shape Adaptive Blur filter, ported from MPlayer libmpcodecs/vf_sab.c.

Definition in file vf_sab.c.

Macro Definition Documentation

◆ COLOR_DIFF_COEFF_SIZE

#define COLOR_DIFF_COEFF_SIZE   512

Definition at line 46 of file vf_sab.c.

Referenced by open_filter_param().

◆ RADIUS_MIN

#define RADIUS_MIN   0.1

Definition at line 68 of file vf_sab.c.

Referenced by init(), and init().

◆ RADIUS_MAX

#define RADIUS_MAX   4.0

Definition at line 69 of file vf_sab.c.

Referenced by validate_params().

◆ PRE_FILTER_RADIUS_MIN

#define PRE_FILTER_RADIUS_MIN   0.1

Definition at line 71 of file vf_sab.c.

Referenced by init().

◆ PRE_FILTER_RADIUS_MAX

#define PRE_FILTER_RADIUS_MAX   2.0

Definition at line 72 of file vf_sab.c.

◆ STRENGTH_MIN

#define STRENGTH_MIN   0.1

Definition at line 74 of file vf_sab.c.

Referenced by init(), and init().

◆ STRENGTH_MAX

#define STRENGTH_MAX   100.0

Definition at line 75 of file vf_sab.c.

◆ OFFSET

#define OFFSET ( x)
Value:
offsetof(SabContext, x)

Definition at line 77 of file vf_sab.c.

◆ FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 78 of file vf_sab.c.

◆ NB_PLANES

#define NB_PLANES   4

Definition at line 216 of file vf_sab.c.

◆ UPDATE_FACTOR

#define UPDATE_FACTOR
Value:
do { \
int factor; \
factor = f.color_diff_coeff[COLOR_DIFF_COEFF_SIZE/2 + pre_val - \
f.pre_filter_buf[ix + iy*f.pre_filter_linesize]] * f.dist_coeff[dx + dy*f.dist_linesize]; \
sum += src[ix + iy*src_linesize] * factor; \
div += factor; \
} while (0)
f
#define f(width, name)
Definition cbs_vp8.c:236
factor
static const int factor[16]
Definition vf_pp7.c:98
src
#define src
Definition vp8dsp.c:248
COLOR_DIFF_COEFF_SIZE
#define COLOR_DIFF_COEFF_SIZE
Definition vf_sab.c:46

Referenced by blur().

Function Documentation

◆ AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS ( sab )

◆ init()

static av_cold int init ( AVFilterContext * ctx)
static

Definition at line 102 of file vf_sab.c.

◆ close_filter_param()

static void close_filter_param ( FilterParam * f)
static

Definition at line 125 of file vf_sab.c.

Referenced by config_props(), and uninit().

◆ uninit()

static av_cold void uninit ( AVFilterContext * ctx)
static

Definition at line 135 of file vf_sab.c.

◆ open_filter_param()

static int open_filter_param ( FilterParam * f,
int width,
int height,
unsigned int sws_flags )
static

Definition at line 143 of file vf_sab.c.

Referenced by config_props().

◆ config_props()

static int config_props ( AVFilterLink * inlink)
static

Definition at line 195 of file vf_sab.c.

◆ blur()

static void blur ( uint8_t * dst,
const int dst_linesize,
const uint8_t * src,
const int src_linesize,
const int w,
const int h,
FilterParam * fp )
static

Definition at line 218 of file vf_sab.c.

Referenced by filter_frame().

◆ filter_frame()

static int filter_frame ( AVFilterLink * inlink,
AVFrame * inpic )
static

Definition at line 276 of file vf_sab.c.

Variable Documentation

◆ pix_fmts

enum AVPixelFormat pix_fmts[]
static
Initial value:
= {
AV_PIX_FMT_YUV420P,
AV_PIX_FMT_YUV410P,
AV_PIX_FMT_YUV444P,
AV_PIX_FMT_YUV422P,
AV_PIX_FMT_YUV411P,
AV_PIX_FMT_NONE
}
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition pixfmt.h:72
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition pixfmt.h:73
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition pixfmt.h:77
AV_PIX_FMT_YUV410P
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition pixfmt.h:79
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition pixfmt.h:80
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition pixfmt.h:78

Definition at line 59 of file vf_sab.c.

◆ sab_options

const AVOption sab_options[]
static
Initial value:
= {
{ "luma_radius", "set luma radius", OFFSET(luma.radius), AV_OPT_TYPE_FLOAT, {.dbl=1.0}, RADIUS_MIN, RADIUS_MAX, .flags=FLAGS },
{ "lr" , "set luma radius", OFFSET(luma.radius), AV_OPT_TYPE_FLOAT, {.dbl=1.0}, RADIUS_MIN, RADIUS_MAX, .flags=FLAGS },
{ "luma_pre_filter_radius", "set luma pre-filter radius", OFFSET(luma.pre_filter_radius), AV_OPT_TYPE_FLOAT, {.dbl=1.0}, PRE_FILTER_RADIUS_MIN, PRE_FILTER_RADIUS_MAX, .flags=FLAGS },
{ "lpfr", "set luma pre-filter radius", OFFSET(luma.pre_filter_radius), AV_OPT_TYPE_FLOAT, {.dbl=1.0}, PRE_FILTER_RADIUS_MIN, PRE_FILTER_RADIUS_MAX, .flags=FLAGS },
{ "luma_strength", "set luma strength", OFFSET(luma.strength), AV_OPT_TYPE_FLOAT, {.dbl=1.0}, STRENGTH_MIN, STRENGTH_MAX, .flags=FLAGS },
{ "ls", "set luma strength", OFFSET(luma.strength), AV_OPT_TYPE_FLOAT, {.dbl=1.0}, STRENGTH_MIN, STRENGTH_MAX, .flags=FLAGS },
{ "chroma_radius", "set chroma radius", OFFSET(chroma.radius), AV_OPT_TYPE_FLOAT, {.dbl=RADIUS_MIN-1}, RADIUS_MIN-1, RADIUS_MAX, .flags=FLAGS },
{ "cr", "set chroma radius", OFFSET(chroma.radius), AV_OPT_TYPE_FLOAT, {.dbl=RADIUS_MIN-1}, RADIUS_MIN-1, RADIUS_MAX, .flags=FLAGS },
{ "chroma_pre_filter_radius", "set chroma pre-filter radius", OFFSET(chroma.pre_filter_radius), AV_OPT_TYPE_FLOAT, {.dbl=PRE_FILTER_RADIUS_MIN-1},
PRE_FILTER_RADIUS_MIN-1, PRE_FILTER_RADIUS_MAX, .flags=FLAGS },
{ "cpfr", "set chroma pre-filter radius", OFFSET(chroma.pre_filter_radius), AV_OPT_TYPE_FLOAT, {.dbl=PRE_FILTER_RADIUS_MIN-1},
PRE_FILTER_RADIUS_MIN-1, PRE_FILTER_RADIUS_MAX, .flags=FLAGS },
{ "chroma_strength", "set chroma strength", OFFSET(chroma.strength), AV_OPT_TYPE_FLOAT, {.dbl=STRENGTH_MIN-1}, STRENGTH_MIN-1, STRENGTH_MAX, .flags=FLAGS },
{ "cs", "set chroma strength", OFFSET(chroma.strength), AV_OPT_TYPE_FLOAT, {.dbl=STRENGTH_MIN-1}, STRENGTH_MIN-1, STRENGTH_MAX, .flags=FLAGS },
{ NULL }
}
FLAGS
#define FLAGS
Definition cmdutils.c:598
NULL
#define NULL
Definition coverity.c:32
OFFSET
#define OFFSET(x)
Definition ffmpeg_opt.c:1551
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Underlying C type is float.
Definition opt.h:270
RADIUS_MAX
#define RADIUS_MAX
Definition vf_sab.c:69
STRENGTH_MAX
#define STRENGTH_MAX
Definition vf_sab.c:75
PRE_FILTER_RADIUS_MAX
#define PRE_FILTER_RADIUS_MAX
Definition vf_sab.c:72
PRE_FILTER_RADIUS_MIN
#define PRE_FILTER_RADIUS_MIN
Definition vf_sab.c:71
RADIUS_MIN
#define RADIUS_MIN
Definition vf_sab.c:68
STRENGTH_MIN
#define STRENGTH_MIN
Definition vf_sab.c:74
chroma
static av_always_inline void chroma(WaveformContext *s, AVFrame *in, AVFrame *out, int component, int intensity, int offset_y, int offset_x, int column, int mirror, int jobnr, int nb_jobs)
Definition vf_waveform.c:1639

Definition at line 80 of file vf_sab.c.

◆ sab_inputs

const AVFilterPad sab_inputs[]
static
Initial value:
= {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.filter_frame = filter_frame,
.config_props = config_props,
},
}
filter_frame
static int filter_frame(DBEDecodeContext *s, AVFrame *frame)
Definition dolby_e.c:1067
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition avutil.h:200
config_props
static int config_props(AVBitStreamFilterLink *link)
Definition source.c:181

Definition at line 302 of file vf_sab.c.

◆ ff_vf_sab

const FFFilter ff_vf_sab
Initial value:
= {
.p.name = "sab",
.p.description = NULL_IF_CONFIG_SMALL("Apply shape adaptive blur."),
.p.priv_class = &sab_class,
.p.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
.priv_size = sizeof(SabContext),
.init = init,
.uninit = uninit,
FILTER_INPUTS(sab_inputs),
FILTER_OUTPUTS(ff_video_default_filterpad),
FILTER_PIXFMTS_ARRAY(pix_fmts),
}
init
int(* init)(AVBSFContext *ctx)
Definition dts2pts.c:608
AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
Definition avfilter.h:196
uninit
static av_cold void uninit(AVBitStreamFilterContext *ctx)
Definition lcevc_merge.c:135
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition filters.h:264
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition filters.h:265
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition filters.h:244
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition internal.h:88
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition libkvazaar.c:296
sab_inputs
static const AVFilterPad sab_inputs[]
Definition vf_sab.c:302
ff_video_default_filterpad
const AVFilterPad ff_video_default_filterpad[1]
An AVFilterPad array whose only entry has name "default" and is of type AVMEDIA_TYPE_VIDEO.
Definition video.c:37

Definition at line 311 of file vf_sab.c.

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