vf_sab.c File Reference

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

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

Classes
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)   offsetof(SabContext, x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
#define	NB_PLANES   4
#define	UPDATE_FACTOR

Typedefs
typedef struct FilterParam	FilterParam
typedef struct SabContext	SabContext

Functions
	AVFILTER_DEFINE_CLASS (sab)

Variables
AVFilter	ff_vf_sab

Detailed Description

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

Macro Definition Documentation

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)

Variable Documentation

ff_vf_sab

AVFilter ff_vf_sab

Initial value:

= {
    .name          = "sab",
    .description   = NULL_IF_CONFIG_SMALL("Apply shape adaptive blur."),
    .priv_size     = sizeof(SabContext),
    .init          = init,
    .uninit        = uninit,
    .query_formats = query_formats,
    .inputs        = sab_inputs,
    .outputs       = sab_outputs,
    .priv_class    = &sab_class,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
}