vf_chromanr.c File Reference

#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	ChromaNRContext

Macros
#define	MANHATTAN_DISTANCE(x, y, z)   ((x) + (y) + (z))
#define	EUCLIDEAN_DISTANCE(x, y, z)   (sqrtf((x)*(x) + (y)*(y) + (z)*(z)))
#define	FILTER_FUNC(distance, name, ctype, type, fun, extra)
#define	OFFSET(x)   offsetof(ChromaNRContext, x)
#define	VF   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM

Functions
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
static int	config_input (AVFilterLink *inlink)
	AVFILTER_DEFINE_CLASS (chromanr)

Variables
static enum AVPixelFormat	pix_fmts []
static const AVOption	chromanr_options []
static const AVFilterPad	inputs []
const AVFilter	ff_vf_chromanr

Macro Definition Documentation

MANHATTAN_DISTANCE

#define MANHATTAN_DISTANCE	(		x,
			y,
			z
	)		((x) + (y) + (z))

Definition at line 73 of file vf_chromanr.c.

EUCLIDEAN_DISTANCE

#define EUCLIDEAN_DISTANCE	(		x,
			y,
			z
	)		(sqrtf((x)*(x) + (y)*(y) + (z)*(z)))

Definition at line 74 of file vf_chromanr.c.

FILTER_FUNC

#define FILTER_FUNC	(		distance,
			name,
			ctype,
			type,
			fun,
			extra
	)

Definition at line 76 of file vf_chromanr.c.

OFFSET

#define OFFSET

(

x

)

offsetof(ChromaNRContext, x)

Definition at line 263 of file vf_chromanr.c.

VF

#define VF   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM

Definition at line 264 of file vf_chromanr.c.

Function Documentation

filter_frame()

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

static

Definition at line 192 of file vf_chromanr.c.

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 241 of file vf_chromanr.c.

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

chromanr

)

Variable Documentation

pix_fmts

enum AVPixelFormat pix_fmts[]

static

Initial value:

= {
    AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV444P,
    AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
    AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ411P,
    AV_PIX_FMT_YUV420P9,   AV_PIX_FMT_YUV422P9,   AV_PIX_FMT_YUV444P9,
    AV_PIX_FMT_YUV420P10,  AV_PIX_FMT_YUV422P10,  AV_PIX_FMT_YUV440P10, AV_PIX_FMT_YUV444P10,
    AV_PIX_FMT_YUV444P12,  AV_PIX_FMT_YUV422P12,  AV_PIX_FMT_YUV440P12, AV_PIX_FMT_YUV420P12,
    AV_PIX_FMT_YUV444P14,  AV_PIX_FMT_YUV422P14,  AV_PIX_FMT_YUV420P14,
    AV_PIX_FMT_YUV420P16,  AV_PIX_FMT_YUV422P16,  AV_PIX_FMT_YUV444P16,
    AV_PIX_FMT_YUVA420P9,  AV_PIX_FMT_YUVA422P9,  AV_PIX_FMT_YUVA444P9,
    AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
    AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12,
    AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
    AV_PIX_FMT_NONE
}

Definition at line 57 of file vf_chromanr.c.

chromanr_options

const AVOption chromanr_options[]

static

Initial value:

= {
    { "thres", "set y+u+v threshold", OFFSET(threshold), AV_OPT_TYPE_FLOAT, {.dbl=30}, 1,   200, VF },
    { "sizew", "set horizontal patch size", OFFSET(sizew),     AV_OPT_TYPE_INT,   {.i64=5},  1,   100, VF },
    { "sizeh", "set vertical patch size",   OFFSET(sizeh),     AV_OPT_TYPE_INT,   {.i64=5},  1,   100, VF },
    { "stepw", "set horizontal step", OFFSET(stepw),     AV_OPT_TYPE_INT,   {.i64=1},  1,    50, VF },
    { "steph", "set vertical step",   OFFSET(steph),     AV_OPT_TYPE_INT,   {.i64=1},  1,    50, VF },
    { "threy", "set y threshold",   OFFSET(threshold_y), AV_OPT_TYPE_FLOAT, {.dbl=200},1,   200, VF },
    { "threu", "set u threshold",   OFFSET(threshold_u), AV_OPT_TYPE_FLOAT, {.dbl=200},1,   200, VF },
    { "threv", "set v threshold",   OFFSET(threshold_v), AV_OPT_TYPE_FLOAT, {.dbl=200},1,   200, VF },
    { "distance", "set distance type", OFFSET(distance), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, VF, .unit = "distance" },
    {   "manhattan", "", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, VF, .unit = "distance" },
    {   "euclidean", "", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, VF, .unit = "distance" },
    { NULL }
}

Definition at line 266 of file vf_chromanr.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 281 of file vf_chromanr.c.

ff_vf_chromanr

const AVFilter ff_vf_chromanr

Initial value:

= {
    .name          = "chromanr",
    .description   = NULL_IF_CONFIG_SMALL("Reduce chrominance noise."),
    .priv_size     = sizeof(ChromaNRContext),
    .priv_class    = &chromanr_class,
    FILTER_OUTPUTS(ff_video_default_filterpad),
    FILTER_INPUTS(inputs),
    FILTER_PIXFMTS_ARRAY(pix_fmts),
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
    .process_command = ff_filter_process_command,
}

Definition at line 292 of file vf_chromanr.c.