vf_normalize.c File Reference

#include "libavutil/intreadwrite.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "drawutils.h"
#include "filters.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	NormalizeHistory
struct	NormalizeLocal
struct	NormalizeContext

Macros
#define	OFFSET(x)
#define	FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
#define	FLAGSR   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Functions
	AVFILTER_DEFINE_CLASS (normalize)
static void	find_min_max (NormalizeContext *s, AVFrame *in, NormalizeLocal min[3], NormalizeLocal max[3])
static void	process (NormalizeContext *s, AVFrame *in, AVFrame *out)
static void	find_min_max_planar (NormalizeContext *s, AVFrame *in, NormalizeLocal min[3], NormalizeLocal max[3])
static void	process_planar (NormalizeContext *s, AVFrame *in, AVFrame *out)
static void	find_min_max_16 (NormalizeContext *s, AVFrame *in, NormalizeLocal min[3], NormalizeLocal max[3])
static void	process_16 (NormalizeContext *s, AVFrame *in, AVFrame *out)
static void	find_min_max_planar_16 (NormalizeContext *s, AVFrame *in, NormalizeLocal min[3], NormalizeLocal max[3])
static void	process_planar_16 (NormalizeContext *s, AVFrame *in, AVFrame *out)
static void	normalize (NormalizeContext *s, AVFrame *in, AVFrame *out)
static int	config_input (AVFilterLink *inlink)
static av_cold void	uninit (AVFilterContext *ctx)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)

Variables
static const AVOption	normalize_options []
static enum AVPixelFormat	pixel_fmts []
static const AVFilterPad	inputs []
const FFFilter	ff_vf_normalize

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(NormalizeContext, x)

Definition at line 124 of file vf_normalize.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 125 of file vf_normalize.c.

FLAGSR

#define FLAGSR   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Definition at line 126 of file vf_normalize.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

normalize

)

find_min_max()

static void find_min_max ( NormalizeContext * s, AVFrame * in, NormalizeLocal min[3], NormalizeLocal max[3] )

static

Definition at line 139 of file vf_normalize.c.

Referenced by config_input().

process()

static void process ( NormalizeContext * s, AVFrame * in, AVFrame * out )

static

Definition at line 155 of file vf_normalize.c.

Referenced by compile(), compile(), compile_uops_c(), config_input(), ff_swscale(), and set_cpu_affinity().

find_min_max_planar()

static void find_min_max_planar ( NormalizeContext * s, AVFrame * in, NormalizeLocal min[3], NormalizeLocal max[3] )

static

Definition at line 172 of file vf_normalize.c.

Referenced by config_input().

process_planar()

static void process_planar ( NormalizeContext * s, AVFrame * in, AVFrame * out )

static

Definition at line 192 of file vf_normalize.c.

Referenced by config_input().

find_min_max_16()

static void find_min_max_16 ( NormalizeContext * s, AVFrame * in, NormalizeLocal min[3], NormalizeLocal max[3] )

static

Definition at line 213 of file vf_normalize.c.

Referenced by config_input().

process_16()

static void process_16 ( NormalizeContext * s, AVFrame * in, AVFrame * out )

static

Definition at line 229 of file vf_normalize.c.

Referenced by config_input().

find_min_max_planar_16()

static void find_min_max_planar_16 ( NormalizeContext * s, AVFrame * in, NormalizeLocal min[3], NormalizeLocal max[3] )

static

Definition at line 246 of file vf_normalize.c.

Referenced by config_input().

process_planar_16()

static void process_planar_16 ( NormalizeContext * s, AVFrame * in, AVFrame * out )

static

Definition at line 266 of file vf_normalize.c.

Referenced by config_input().

normalize()

static void normalize ( NormalizeContext * s, AVFrame * in, AVFrame * out )

static

Definition at line 290 of file vf_normalize.c.

config_input()

static int config_input ( AVFilterLink * inlink )

static

Definition at line 412 of file vf_normalize.c.

uninit()

static av_cold void uninit ( AVFilterContext * ctx )

static

Definition at line 458 of file vf_normalize.c.

filter_frame()

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

static

Definition at line 468 of file vf_normalize.c.

Variable Documentation

normalize_options

const AVOption normalize_options[]

static

Initial value:

= {
    { "blackpt",  "output color to which darkest input color is mapped",  OFFSET(blackpt), AV_OPT_TYPE_COLOR, { .str = "black" }, 0, 0, FLAGSR },
    { "whitept",  "output color to which brightest input color is mapped",  OFFSET(whitept), AV_OPT_TYPE_COLOR, { .str = "white" }, 0, 0, FLAGSR },
    { "smoothing",  "amount of temporal smoothing of the input range, to reduce flicker", OFFSET(smoothing), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX/8, FLAGS },
    { "independence", "proportion of independent to linked channel normalization", OFFSET(independence), AV_OPT_TYPE_FLOAT, {.dbl=1.0}, 0.0, 1.0, FLAGSR },
    { "strength", "strength of filter, from no effect to full normalization", OFFSET(strength), AV_OPT_TYPE_FLOAT, {.dbl=1.0}, 0.0, 1.0, FLAGSR },
    { NULL }
}

Definition at line 128 of file vf_normalize.c.

pixel_fmts

enum AVPixelFormat pixel_fmts[]

static

Initial value:

= {
    AV_PIX_FMT_RGB24,
    AV_PIX_FMT_BGR24,
    AV_PIX_FMT_ARGB,
    AV_PIX_FMT_RGBA,
    AV_PIX_FMT_ABGR,
    AV_PIX_FMT_BGRA,
    AV_PIX_FMT_0RGB,
    AV_PIX_FMT_RGB0,
    AV_PIX_FMT_0BGR,
    AV_PIX_FMT_BGR0,
    AV_PIX_FMT_RGB48,  AV_PIX_FMT_BGR48,
    AV_PIX_FMT_RGBA64, AV_PIX_FMT_BGRA64,
    AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
    AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
    AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
    AV_PIX_FMT_NONE
}

Definition at line 390 of file vf_normalize.c.

inputs

const AVFilterPad inputs[]

static

Initial value:

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

Definition at line 504 of file vf_normalize.c.

ff_vf_normalize

const FFFilter ff_vf_normalize

Initial value:

= {
    .p.name        = "normalize",
    .p.description = NULL_IF_CONFIG_SMALL("Normalize RGB video."),
    .p.priv_class  = &normalize_class,
    .p.flags       = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
    .priv_size     = sizeof(NormalizeContext),
    .uninit        = uninit,
    FILTER_INPUTS(inputs),
    FILTER_OUTPUTS(ff_video_default_filterpad),
    FILTER_PIXFMTS_ARRAY(pixel_fmts),
    .process_command = ff_filter_process_command,
}

Definition at line 513 of file vf_normalize.c.