vf_lensfun.c File Reference

Lensfun filter, applies lens correction with parameters from the lensfun database. More...

#include <float.h>
#include <math.h>
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "filters.h"
#include "video.h"
#include <lensfun.h>

Go to the source code of this file.

Data Structures
struct	VignettingThreadData
struct	DistortionCorrectionThreadData
struct	LensfunContext

Macros
#define	LANCZOS_RESOLUTION   256
#define	OFFSET(x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Enumerations
enum	Mode { VIGNETTING = 0x1 , GEOMETRY_DISTORTION = 0x2 , SUBPIXEL_DISTORTION = 0x4 }
enum	InterpolationType { NEAREST , LINEAR , LANCZOS }

Functions
	AVFILTER_DEFINE_CLASS (lensfun)
static av_cold int	init (AVFilterContext *ctx)
static float	lanczos_kernel (float x)
static int	config_props (AVFilterLink *inlink)
static int	vignetting_filter_slice (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static float	square (float x)
static int	distortion_correction_filter_slice (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
static av_cold void	uninit (AVFilterContext *ctx)

Variables
static const AVOption	lensfun_options []
static const AVFilterPad	lensfun_inputs []
const FFFilter	ff_vf_lensfun

Detailed Description

Lensfun filter, applies lens correction with parameters from the lensfun database.

See also

https://lensfun.sourceforge.net/

Definition in file vf_lensfun.c.

Macro Definition Documentation

LANCZOS_RESOLUTION

#define LANCZOS_RESOLUTION   256

Definition at line 39 of file vf_lensfun.c.

Referenced by config_props(), and distortion_correction_filter_slice().

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(LensfunContext, x)

Definition at line 92 of file vf_lensfun.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 93 of file vf_lensfun.c.

Enumeration Type Documentation

Mode

enum Mode

Enumerator
VIGNETTING
GEOMETRY_DISTORTION
SUBPIXEL_DISTORTION

Definition at line 41 of file vf_lensfun.c.

InterpolationType

enum InterpolationType

Enumerator
NEAREST
LINEAR
LANCZOS

Definition at line 47 of file vf_lensfun.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

lensfun

)

init()

static av_cold int init ( AVFilterContext * ctx )

static

Definition at line 130 of file vf_lensfun.c.

lanczos_kernel()

static float lanczos_kernel ( float x )

static

Definition at line 196 of file vf_lensfun.c.

Referenced by config_output(), and config_props().

config_props()

static int config_props ( AVFilterLink * inlink )

static

Definition at line 207 of file vf_lensfun.c.

vignetting_filter_slice()

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

static

Definition at line 284 of file vf_lensfun.c.

Referenced by filter_frame().

square()

static float square ( float x )

static

Definition at line 302 of file vf_lensfun.c.

Referenced by distortion_correction_filter_slice().

distortion_correction_filter_slice()

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

static

Definition at line 307 of file vf_lensfun.c.

Referenced by filter_frame().

filter_frame()

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

static

Definition at line 436 of file vf_lensfun.c.

uninit()

static av_cold void uninit ( AVFilterContext * ctx )

static

Definition at line 499 of file vf_lensfun.c.

Variable Documentation

lensfun_options

const AVOption lensfun_options[]

static

Definition at line 94 of file vf_lensfun.c.

lensfun_inputs

const AVFilterPad lensfun_inputs[]

static

Initial value:

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

Definition at line 513 of file vf_lensfun.c.

ff_vf_lensfun

const FFFilter ff_vf_lensfun

Initial value:

= {
    .p.name        = "lensfun",
    .p.description = NULL_IF_CONFIG_SMALL("Apply correction to an image based on info derived from the lensfun database."),
    .p.priv_class  = &lensfun_class,
    .p.flags       = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
    .priv_size     = sizeof(LensfunContext),
    .init          = init,
    .uninit        = uninit,
    FILTER_INPUTS(lensfun_inputs),
    FILTER_OUTPUTS(ff_video_default_filterpad),
    FILTER_SINGLE_PIXFMT(AV_PIX_FMT_RGB24),
}

Definition at line 522 of file vf_lensfun.c.