libavfilter/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
Defines
#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	end_frame (AVFilterLink *inlink)
Variables
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.

---

Define Documentation

#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().

#define RADIUS_MAX   5.0

Definition at line 36 of file vf_smartblur.c.

Referenced by init().

#define RADIUS_MIN   0.1

Definition at line 35 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 STRENGTH_MIN   -1.0

Definition at line 38 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 THRESHOLD_MIN   -30

Definition at line 41 of file vf_smartblur.c.

Referenced by init().

---

Function Documentation

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 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.

static int config_props

(

AVFilterLink *

inlink

)

[static]

Definition at line 169 of file vf_smartblur.c.

static int end_frame

(

AVFilterLink *

inlink

)

[static]

Definition at line 249 of file vf_smartblur.c.

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

Definition at line 69 of file vf_smartblur.c.

static int query_formats

(

AVFilterContext *

ctx

)

[static]

Definition at line 127 of file vf_smartblur.c.

static av_cold void uninit

(

AVFilterContext *

ctx

)

[static]

Definition at line 119 of file vf_smartblur.c.

---

Variable Documentation

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 = (const AVFilterPad[]) {
        {
            .name         = "default",
            .type         = AVMEDIA_TYPE_VIDEO,
            .end_frame    = end_frame,
            .config_props = config_props,
            .min_perms    = AV_PERM_READ,
        },
        { .name = NULL }
    },
    .outputs = (const AVFilterPad[]) {
        {
            .name         = "default",
            .type         = AVMEDIA_TYPE_VIDEO,
        },
        { .name = NULL }
    }
}

Definition at line 276 of file vf_smartblur.c.