vf_smartblur.c File Reference

Apply a smartblur filter to the input video Ported from MPlayer libmpcodecs/vf_smartblur.c by Michael Niedermayer. More...

#include "libavutil/pixdesc.h"
#include "libswscale/swscale.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"

Go to the source code of this file.

Data Structures
struct	FilterParam
struct	SmartblurContext

Macros
#define	RADIUS_MIN   0.1
#define	RADIUS_MAX   5.0
#define	STRENGTH_MIN   -1.0
#define	STRENGTH_MAX   1.0
#define	THRESHOLD_MIN   -30
#define	THRESHOLD_MAX   30
#define	CHECK_PARAM(param, name, min, max, format, ret)

Functions
static av_cold int	init (AVFilterContext *ctx, const char *args)
static av_cold void	uninit (AVFilterContext *ctx)
static int	query_formats (AVFilterContext *ctx)
static int	alloc_sws_context (FilterParam *f, int width, int height, unsigned int 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, const int threshold, struct SwsContext *filter_context)
static int	filter_frame (AVFilterLink *inlink, AVFilterBufferRef *inpic)

Variables
static const AVFilterPad	smartblur_inputs []
static const AVFilterPad	smartblur_outputs []
AVFilter	avfilter_vf_smartblur

Detailed Description

Apply a smartblur filter to the input video Ported from MPlayer libmpcodecs/vf_smartblur.c by Michael Niedermayer.

Definition in file vf_smartblur.c.

Macro Definition Documentation

#define RADIUS_MIN   0.1

Definition at line 35 of file vf_smartblur.c.

Referenced by init().

#define RADIUS_MAX   5.0

Definition at line 36 of file vf_smartblur.c.

Referenced by init().

#define STRENGTH_MIN   -1.0

Definition at line 38 of file vf_smartblur.c.

Referenced by init().

#define STRENGTH_MAX   1.0

Definition at line 39 of file vf_smartblur.c.

Referenced by init().

#define THRESHOLD_MIN   -30

Definition at line 41 of file vf_smartblur.c.

Referenced by init().

#define THRESHOLD_MAX   30

Definition at line 42 of file vf_smartblur.c.

Referenced by init().

#define CHECK_PARAM	(		param,
			name,
			min,
			max,
			format,
			ret
	)

Value:

if (param < min || param > max) {                                         \
        av_log(ctx, AV_LOG_ERROR,                                             \
               "Invalid " #name " value " #format ": "                        \
               "must be included between range " #format " and " #format "\n",\
               param, min, max);                                              \
        ret = AVERROR(EINVAL);                                                \
    }

Definition at line 60 of file vf_smartblur.c.

Referenced by init().

Function Documentation

static av_cold int init ( AVFilterContext *  ctx, const char *  args  )

static

Definition at line 69 of file vf_smartblur.c.

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 119 of file vf_smartblur.c.

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 127 of file vf_smartblur.c.

static int alloc_sws_context ( FilterParam *  f, int  width, int  height, unsigned int  flags  )

static

Definition at line 142 of file vf_smartblur.c.

Referenced by config_props().

static int config_props ( AVFilterLink *  inlink )

static

Definition at line 169 of file vf_smartblur.c.

static void blur ( uint8_t *  dst, const int  dst_linesize, const uint8_t *  src, const int  src_linesize, const int  w, const int  h, const int  threshold, struct SwsContext *  filter_context  )

static

Definition at line 185 of file vf_smartblur.c.

Referenced by filter_frame().

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

static

Definition at line 249 of file vf_smartblur.c.

Variable Documentation

const AVFilterPad smartblur_inputs[]

static

Initial value:

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

Definition at line 284 of file vf_smartblur.c.

const AVFilterPad smartblur_outputs[]

static

Initial value:

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

Definition at line 295 of file vf_smartblur.c.

AVFilter avfilter_vf_smartblur

Initial value:

= {
    .name        = "smartblur",
    .description = NULL_IF_CONFIG_SMALL("Blur the input video without impacting the outlines."),

    .priv_size = sizeof(SmartblurContext),

    .init          = init,
    .uninit        = uninit,
    .query_formats = query_formats,
    .inputs        = smartblur_inputs,
    .outputs       = smartblur_outputs,
}

Definition at line 303 of file vf_smartblur.c.