vf_gblur.c File Reference

#include <float.h>
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "filters.h"
#include "formats.h"
#include "gblur.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

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

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

Functions
	AVFILTER_DEFINE_CLASS (gblur)
static void	postscale_c (float *buffer, int length, float postscale, float min, float max)
static void	horiz_slice_c (float *buffer, int width, int height, int steps, float nu, float bscale)
static int	filter_horizontally (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static void	do_vertical_columns (float *buffer, int width, int height, int column_begin, int column_end, int steps, float nu, float boundaryscale, int column_step)
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)
void	ff_gblur_init (GBlurContext *s)
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

OFFSET

#define OFFSET

(

x

)

offsetof(GBlurContext, x)

Definition at line 40 of file vf_gblur.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Definition at line 41 of file vf_gblur.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

gblur

)

postscale_c()

static void postscale_c ( float *  buffer, int  length, float  postscale, float  min, float  max  )

static

Definition at line 58 of file vf_gblur.c.

Referenced by ff_gblur_init().

horiz_slice_c()

static void horiz_slice_c ( float *  buffer, int  width, int  height, int  steps, float  nu, float  bscale  )

static

Definition at line 67 of file vf_gblur.c.

Referenced by ff_gblur_init().

filter_horizontally()

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

static

Definition at line 89 of file vf_gblur.c.

Referenced by gaussianiir2d().

do_vertical_columns()

static void do_vertical_columns ( float *  buffer, int  width, int  height, int  column_begin, int  column_end, int  steps, float  nu, float  boundaryscale, int  column_step  )

static

Definition at line 108 of file vf_gblur.c.

Referenced by filter_vertically().

filter_vertically()

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

static

Definition at line 142 of file vf_gblur.c.

Referenced by gaussianiir2d().

filter_postscale()

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

static

Definition at line 167 of file vf_gblur.c.

Referenced by gaussianiir2d().

gaussianiir2d()

static void gaussianiir2d ( AVFilterContext *  ctx, int  plane  )

static

Definition at line 187 of file vf_gblur.c.

Referenced by filter_frame().

query_formats()

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 205 of file vf_gblur.c.

ff_gblur_init()

void ff_gblur_init

(

GBlurContext *

s

)

Definition at line 234 of file vf_gblur.c.

Referenced by checkasm_check_vf_gblur(), and config_input().

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 242 of file vf_gblur.c.

set_params()

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

static

Definition at line 268 of file vf_gblur.c.

Referenced by filter_frame().

filter_frame()

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

static

Definition at line 279 of file vf_gblur.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 372 of file vf_gblur.c.

Variable Documentation

gblur_options

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 43 of file vf_gblur.c.

gblur_inputs

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 379 of file vf_gblur.c.

gblur_outputs

const AVFilterPad gblur_outputs[]

static

Initial value:

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

Definition at line 389 of file vf_gblur.c.

ff_vf_gblur

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,
    .process_command = ff_filter_process_command,
}

Definition at line 397 of file vf_gblur.c.