vf_gblur.c File Reference

#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	GBlurContext
struct	ThreadData

Macros
#define	OFFSET(x)   offsetof(GBlurContext, x)
#define	FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Functions
	AVFILTER_DEFINE_CLASS (gblur)
static int	filter_horizontally (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	filter_vertically (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	filter_postscale (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static void	gaussianiir2d (AVFilterContext *ctx, int plane)
static int	query_formats (AVFilterContext *ctx)
static int	config_input (AVFilterLink *inlink)
static void	set_params (float sigma, int steps, float *postscale, float *boundaryscale, float *nu)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
static av_cold void	uninit (AVFilterContext *ctx)

Variables
static const AVOption	gblur_options []
static const AVFilterPad	gblur_inputs []
static const AVFilterPad	gblur_outputs []
AVFilter	ff_vf_gblur

Macro Definition Documentation

#define OFFSET

(

x

)

offsetof(GBlurContext, x)

Definition at line 57 of file vf_gblur.c.

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 58 of file vf_gblur.c.

Function Documentation

AVFILTER_DEFINE_CLASS

(

gblur

)

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

static

Definition at line 75 of file vf_gblur.c.

Referenced by gaussianiir2d().

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

static

Definition at line 111 of file vf_gblur.c.

Referenced by gaussianiir2d().

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

static

Definition at line 149 of file vf_gblur.c.

Referenced by gaussianiir2d().

static void gaussianiir2d ( AVFilterContext *  ctx, int  plane  )

static

Definition at line 168 of file vf_gblur.c.

Referenced by filter_frame().

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 186 of file vf_gblur.c.

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 212 of file vf_gblur.c.

static void set_params ( float  sigma, int  steps, float *  postscale, float *  boundaryscale, float *  nu  )

static

Definition at line 236 of file vf_gblur.c.

Referenced by filter_frame().

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

static

Definition at line 247 of file vf_gblur.c.

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 332 of file vf_gblur.c.

Variable Documentation

const AVOption gblur_options[]

static

Initial value:

= {
    { "sigma",  "set sigma",            OFFSET(sigma),  AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0.0, 1024, FLAGS },
    { "steps",  "set number of steps",  OFFSET(steps),  AV_OPT_TYPE_INT,   {.i64=1},     1,    6, FLAGS },
    { "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT,   {.i64=0xF},   0,  0xF, FLAGS },
    { "sigmaV", "set vertical sigma",   OFFSET(sigmaV), AV_OPT_TYPE_FLOAT, {.dbl=-1},   -1, 1024, FLAGS },
    { NULL }
}

Definition at line 60 of file vf_gblur.c.

const AVFilterPad gblur_inputs[]

static

Initial value:

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

Definition at line 339 of file vf_gblur.c.

const AVFilterPad gblur_outputs[]

static

Initial value:

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

Definition at line 349 of file vf_gblur.c.

AVFilter ff_vf_gblur

Initial value:

= {
    .name          = "gblur",
    .description   = NULL_IF_CONFIG_SMALL("Apply Gaussian Blur filter."),
    .priv_size     = sizeof(GBlurContext),
    .priv_class    = &gblur_class,
    .uninit        = uninit,
    .query_formats = query_formats,
    .inputs        = gblur_inputs,
    .outputs       = gblur_outputs,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
}

Definition at line 357 of file vf_gblur.c.