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/avassert.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libswscale/swscale.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.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)   offsetof(LensfunContext, x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Enumerations
enum	Mode {   MODE_4k75 = 0, MODE_5k15, MODE_5k9, MODE_6k7,   MODE_7k4, MODE_7k95, MODE_10k2, MODE_12k2,   MODE_DTX, N_MODES, NO_DATA = 15, MODE_6k60 = 0,   MODE_8k85, MODE_12k65, MODE_14k25, MODE_15k85,   MODE_18k25, MODE_19k85, MODE_23k05, MODE_23k85,   MODE_SID, SP_LOST = 14, NO_DATA, 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 int	query_formats (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 []
static const AVFilterPad	lensfun_outputs []
AVFilter	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

#define LANCZOS_RESOLUTION   256

Definition at line 42 of file vf_lensfun.c.

Referenced by config_props(), and distortion_correction_filter_slice().

#define OFFSET

(

x

)

offsetof(LensfunContext, x)

Definition at line 94 of file vf_lensfun.c.

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 95 of file vf_lensfun.c.

Enumeration Type Documentation

enum Mode

Enumerator
MODE_4k75	4.75 kbit/s
MODE_5k15	5.15 kbit/s
MODE_5k9	5.90 kbit/s
MODE_6k7	6.70 kbit/s
MODE_7k4	7.40 kbit/s
MODE_7k95	7.95 kbit/s
MODE_10k2	10.2 kbit/s
MODE_12k2	12.2 kbit/s
MODE_DTX	silent frame
N_MODES	number of modes
NO_DATA	no transmission
MODE_6k60	6.60 kbit/s
MODE_8k85	8.85 kbit/s
MODE_12k65	12.65 kbit/s
MODE_14k25	14.25 kbit/s
MODE_15k85	15.85 kbit/s
MODE_18k25	18.25 kbit/s
MODE_19k85	19.85 kbit/s
MODE_23k05	23.05 kbit/s
MODE_23k85	23.85 kbit/s
MODE_SID	comfort noise frame
SP_LOST	speech lost
NO_DATA	no transmission
VIGNETTING
GEOMETRY_DISTORTION
SUBPIXEL_DISTORTION

Definition at line 44 of file vf_lensfun.c.

enum InterpolationType

Enumerator
NEAREST
LINEAR
LANCZOS

Definition at line 50 of file vf_lensfun.c.

Function Documentation

AVFILTER_DEFINE_CLASS

(

lensfun

)

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 130 of file vf_lensfun.c.

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 186 of file vf_lensfun.c.

static float lanczos_kernel ( float  x )

static

Definition at line 194 of file vf_lensfun.c.

Referenced by config_props().

static int config_props ( AVFilterLink *  inlink )

static

Definition at line 205 of file vf_lensfun.c.

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

static

Definition at line 289 of file vf_lensfun.c.

Referenced by filter_frame().

static float square ( float  x )

static

Definition at line 307 of file vf_lensfun.c.

Referenced by distortion_correction_filter_slice().

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

static

Definition at line 312 of file vf_lensfun.c.

Referenced by filter_frame().

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

static

Definition at line 441 of file vf_lensfun.c.

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 503 of file vf_lensfun.c.

Variable Documentation

const AVOption lensfun_options[]

static

Definition at line 96 of file vf_lensfun.c.

const AVFilterPad lensfun_inputs[]

static

Initial value:

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

Definition at line 517 of file vf_lensfun.c.

const AVFilterPad lensfun_outputs[]

static

Initial value:

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

Definition at line 527 of file vf_lensfun.c.

AVFilter ff_vf_lensfun

Initial value:

= {
    .name          = "lensfun",
    .description   = NULL_IF_CONFIG_SMALL("Apply correction to an image based on info derived from the lensfun database."),
    .priv_size     = sizeof(LensfunContext),
    .init          = init,
    .uninit        = uninit,
    .query_formats = query_formats,
    .inputs        = lensfun_inputs,
    .outputs       = lensfun_outputs,
    .priv_class    = &lensfun_class,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
}

Definition at line 535 of file vf_lensfun.c.