vf_yaepblur.c File Reference

yaep(yet another edge preserving) blur filter More...

#include "libavutil/opt.h"
#include "libavutil/imgutils.h"
#include "avfilter.h"
#include "filters.h"
#include "internal.h"

Go to the source code of this file.

Data Structures
struct	YAEPContext
struct	ThreadData
	Used for passing data between threads. More...

Macros
#define	PRE_CALCULATE_ROW(type, name)
#define	FILTER_SLICE(type, name)
#define	OFFSET(x)   offsetof(YAEPContext, x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Functions
static av_cold void	uninit (AVFilterContext *ctx)
static int	query_formats (AVFilterContext *ctx)
static int	pre_calculate_col (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
static int	config_input (AVFilterLink *inlink)
	AVFILTER_DEFINE_CLASS (yaepblur)

Variables
static const AVFilterPad	yaep_inputs []
static const AVFilterPad	yaep_outputs []
static const AVOption	yaepblur_options []
AVFilter	ff_vf_yaepblur

Detailed Description

yaep(yet another edge preserving) blur filter

This implementation is based on an algorithm described in "J. S. Lee, Digital image enhancement and noise filtering by use of local statistics, IEEE Trans. Pattern Anal. Mach. Intell. PAMI-2, 1980."

Definition in file vf_yaepblur.c.

Macro Definition Documentation

PRE_CALCULATE_ROW

#define PRE_CALCULATE_ROW	(		type,
			name
	)

Definition at line 99 of file vf_yaepblur.c.

FILTER_SLICE

#define FILTER_SLICE	(		type,
			name
	)

Definition at line 166 of file vf_yaepblur.c.

OFFSET

#define OFFSET

(

x

)

offsetof(YAEPContext, x)

Definition at line 324 of file vf_yaepblur.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Definition at line 325 of file vf_yaepblur.c.

Function Documentation

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 56 of file vf_yaepblur.c.

query_formats()

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 63 of file vf_yaepblur.c.

pre_calculate_col()

static int pre_calculate_col ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 136 of file vf_yaepblur.c.

Referenced by filter_frame().

filter_frame()

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

static

Definition at line 221 of file vf_yaepblur.c.

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 271 of file vf_yaepblur.c.

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

yaepblur

)

Variable Documentation

yaep_inputs

const AVFilterPad yaep_inputs[]

static

Initial value:

= {
    {
        .name = "default",
        .type = AVMEDIA_TYPE_VIDEO,
        .config_props = config_input,
        .filter_frame = filter_frame,
    },
    { NULL }
}

Definition at line 306 of file vf_yaepblur.c.

yaep_outputs

const AVFilterPad yaep_outputs[]

static

Initial value:

= {
    {
        .name = "default",
        .type = AVMEDIA_TYPE_VIDEO,
    },
    { NULL }
}

Definition at line 316 of file vf_yaepblur.c.

yaepblur_options

const AVOption yaepblur_options[]

static

Initial value:

= {
    { "radius", "set window radius",    OFFSET(radius), AV_OPT_TYPE_INT, {.i64=3},   0, INT_MAX, .flags=FLAGS },
    { "r"     , "set window radius",    OFFSET(radius), AV_OPT_TYPE_INT, {.i64=3},   0, INT_MAX, .flags=FLAGS },
    { "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=1},   0,     0xF, .flags=FLAGS },
    { "p",      "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=1},   0,     0xF, .flags=FLAGS },
    { "sigma",  "set blur strength",    OFFSET(sigma),  AV_OPT_TYPE_INT, {.i64=128}, 1, INT_MAX, .flags=FLAGS },
    { "s",      "set blur strength",    OFFSET(sigma),  AV_OPT_TYPE_INT, {.i64=128}, 1, INT_MAX, .flags=FLAGS },
    { NULL }
}

Definition at line 327 of file vf_yaepblur.c.

ff_vf_yaepblur

AVFilter ff_vf_yaepblur

Initial value:

= {
    .name            = "yaepblur",
    .description     = NULL_IF_CONFIG_SMALL("Yet another edge preserving blur filter."),
    .priv_size       = sizeof(YAEPContext),
    .priv_class      = &yaepblur_class,
    .uninit          = uninit,
    .query_formats   = query_formats,
    .inputs          = yaep_inputs,
    .outputs         = yaep_outputs,
    .flags           = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
    .process_command = ff_filter_process_command,
}

Definition at line 339 of file vf_yaepblur.c.