vf_tonemap.c File Reference

tonemap algorithms More...

#include <float.h>
#include <stdio.h>
#include "libavutil/csp.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "libavutil/intfloat.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "colorspace.h"
#include "filters.h"
#include "video.h"

Go to the source code of this file.

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

Macros
#define	MIX(x, y, a)
#define	OFFSET(x)
#define	FLAGS   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM

Enumerations
enum	TonemapAlgorithm {   TONEMAP_NONE , TONEMAP_LINEAR , TONEMAP_GAMMA , TONEMAP_CLIP ,   TONEMAP_REINHARD , TONEMAP_HABLE , TONEMAP_MOBIUS , TONEMAP_MAX }

Functions
static av_cold int	init (AVFilterContext *ctx)
static float	hable (float in)
static float	mobius (float in, float j, double peak)
static void	tonemap (TonemapContext *s, AVFrame *out, const AVFrame *in, const AVPixFmtDescriptor *desc, int x, int y, double peak)
static int	tonemap_slice (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	filter_frame (AVFilterLink *link, AVFrame *in)
	AVFILTER_DEFINE_CLASS (tonemap)

Variables
static const AVOption	tonemap_options []
static const AVFilterPad	tonemap_inputs []
const FFFilter	ff_vf_tonemap

Detailed Description

tonemap algorithms

Definition in file vf_tonemap.c.

Macro Definition Documentation

MIX

#define MIX	(		x,
			y,
			a )

Value:

(x) * (1 - (a)) + (y) * (a)

Definition at line 109 of file vf_tonemap.c.

Referenced by tonemap().

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(TonemapContext, x)

Definition at line 283 of file vf_tonemap.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM

Definition at line 284 of file vf_tonemap.c.

Enumeration Type Documentation

TonemapAlgorithm

enum TonemapAlgorithm

Enumerator
TONEMAP_NONE
TONEMAP_LINEAR
TONEMAP_GAMMA
TONEMAP_CLIP
TONEMAP_REINHARD
TONEMAP_HABLE
TONEMAP_MOBIUS
TONEMAP_MAX

Definition at line 42 of file vf_tonemap.c.

Function Documentation

init()

static av_cold int init ( AVFilterContext * ctx )

static

Definition at line 65 of file vf_tonemap.c.

hable()

static float hable ( float in )

static

Definition at line 90 of file vf_tonemap.c.

Referenced by tonemap().

mobius()

static float mobius ( float in, float j, double peak )

static

Definition at line 96 of file vf_tonemap.c.

Referenced by tonemap().

tonemap()

static void tonemap ( TonemapContext * s, AVFrame * out, const AVFrame * in, const AVPixFmtDescriptor * desc, int x, int y, double peak )

static

Definition at line 110 of file vf_tonemap.c.

Referenced by AVFILTER_DEFINE_CLASS(), and tonemap_slice().

tonemap_slice()

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

static

Definition at line 181 of file vf_tonemap.c.

Referenced by filter_frame().

filter_frame()

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

static

Definition at line 199 of file vf_tonemap.c.

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

tonemap

)

Variable Documentation

tonemap_options

const AVOption tonemap_options[]

static

Initial value:

= {
    { "tonemap",      "tonemap algorithm selection", OFFSET(tonemap), AV_OPT_TYPE_INT, {.i64 = TONEMAP_NONE}, TONEMAP_NONE, TONEMAP_MAX - 1, FLAGS, .unit = "tonemap" },
    {     "none",     0, 0, AV_OPT_TYPE_CONST, {.i64 = TONEMAP_NONE},              0, 0, FLAGS, .unit = "tonemap" },
    {     "linear",   0, 0, AV_OPT_TYPE_CONST, {.i64 = TONEMAP_LINEAR},            0, 0, FLAGS, .unit = "tonemap" },
    {     "gamma",    0, 0, AV_OPT_TYPE_CONST, {.i64 = TONEMAP_GAMMA},             0, 0, FLAGS, .unit = "tonemap" },
    {     "clip",     0, 0, AV_OPT_TYPE_CONST, {.i64 = TONEMAP_CLIP},              0, 0, FLAGS, .unit = "tonemap" },
    {     "reinhard", 0, 0, AV_OPT_TYPE_CONST, {.i64 = TONEMAP_REINHARD},          0, 0, FLAGS, .unit = "tonemap" },
    {     "hable",    0, 0, AV_OPT_TYPE_CONST, {.i64 = TONEMAP_HABLE},             0, 0, FLAGS, .unit = "tonemap" },
    {     "mobius",   0, 0, AV_OPT_TYPE_CONST, {.i64 = TONEMAP_MOBIUS},            0, 0, FLAGS, .unit = "tonemap" },
    { "param",        "tonemap parameter", OFFSET(param), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, DBL_MIN, DBL_MAX, FLAGS },
    { "desat",        "desaturation strength", OFFSET(desat), AV_OPT_TYPE_DOUBLE, {.dbl = 2}, 0, DBL_MAX, FLAGS },
    { "peak",         "signal peak override", OFFSET(peak), AV_OPT_TYPE_DOUBLE, {.dbl = 0}, 0, DBL_MAX, FLAGS },
    { NULL }
}

Definition at line 285 of file vf_tonemap.c.

tonemap_inputs

const AVFilterPad tonemap_inputs[]

static

Initial value:

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

Definition at line 302 of file vf_tonemap.c.

ff_vf_tonemap

const FFFilter ff_vf_tonemap

Initial value:

= {
    .p.name          = "tonemap",
    .p.description   = NULL_IF_CONFIG_SMALL("Conversion to/from different dynamic ranges."),
    .p.priv_class    = &tonemap_class,
    .p.flags         = AVFILTER_FLAG_SLICE_THREADS,
    .init            = init,
    .priv_size       = sizeof(TonemapContext),
    FILTER_INPUTS(tonemap_inputs),
    FILTER_OUTPUTS(ff_video_default_filterpad),
    FILTER_PIXFMTS(AV_PIX_FMT_GBRPF32, AV_PIX_FMT_GBRAPF32),
}

Definition at line 310 of file vf_tonemap.c.