vf_fftfilt.c File Reference

FFT domain filtering. More...

#include "filters.h"
#include "video.h"
#include "libavutil/common.h"
#include "libavutil/cpu.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavutil/tx.h"
#include "libavutil/eval.h"

Go to the source code of this file.

Data Structures
struct	FFTFILTContext

Macros
#define	MAX_THREADS   32
#define	MAX_PLANES   4
#define	OFFSET(x)
#define	FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Enumerations
enum	EvalMode { EVAL_MODE_INIT , EVAL_MODE_FRAME , EVAL_MODE_NB }
enum	{   VAR_X , VAR_Y , VAR_W , VAR_H ,   VAR_N , VAR_WS , VAR_HS , VAR_VARS_NB }
enum	{ Y = 0 , U , V }

Functions
	AVFILTER_DEFINE_CLASS (fftfilt)
static double	lum (void *priv, double x, double y, int plane)
static double	weight_Y (void *priv, double x, double y)
static double	weight_U (void *priv, double x, double y)
static double	weight_V (void *priv, double x, double y)
static void	copy_rev (float *dest, int w, int w2)
static int	rdft_horizontal8 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	rdft_horizontal16 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	irdft_horizontal8 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	irdft_horizontal16 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static av_cold int	initialize (AVFilterContext *ctx)
static void	do_eval (FFTFILTContext *s, AVFilterLink *inlink, int plane)
static int	config_props (AVFilterLink *inlink)
static int	multiply_data (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	copy_vertical (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	rdft_vertical (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	irdft_vertical (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	copy_horizontal (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 char *const	var_names [] = { "X", "Y", "W", "H", "N", "WS", "HS", NULL }
static const AVOption	fftfilt_options []
static enum AVPixelFormat	pixel_fmts_fftfilt []
static const AVFilterPad	fftfilt_inputs []
const FFFilter	ff_vf_fftfilt

Detailed Description

FFT domain filtering.

Definition in file vf_fftfilt.c.

Macro Definition Documentation

MAX_THREADS

#define MAX_THREADS   32

Definition at line 37 of file vf_fftfilt.c.

MAX_PLANES

#define MAX_PLANES   4

Definition at line 38 of file vf_fftfilt.c.

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(FFTFILTContext, x)

Definition at line 89 of file vf_fftfilt.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 90 of file vf_fftfilt.c.

Enumeration Type Documentation

EvalMode

enum EvalMode

Enumerator
EVAL_MODE_INIT
EVAL_MODE_FRAME
EVAL_MODE_NB

Definition at line 40 of file vf_fftfilt.c.

anonymous enum

anonymous enum

Enumerator
VAR_X
VAR_Y
VAR_W
VAR_H
VAR_N
VAR_WS
VAR_HS
VAR_VARS_NB

Definition at line 85 of file vf_fftfilt.c.

anonymous enum

anonymous enum

Enumerator
Y
U
V

Definition at line 87 of file vf_fftfilt.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

fftfilt

)

lum()

static double lum ( void * priv, double x, double y, int plane )

inlinestatic

Definition at line 107 of file vf_fftfilt.c.

Referenced by ff_rotate_slice(), ff_sws_init_range_convert_riscv(), geq_init(), rgb24_to_yuv420p(), weight_U(), weight_V(), and weight_Y().

weight_Y()

static double weight_Y ( void * priv, double x, double y )

static

Definition at line 113 of file vf_fftfilt.c.

Referenced by initialize().

weight_U()

static double weight_U ( void * priv, double x, double y )

static

Definition at line 114 of file vf_fftfilt.c.

Referenced by initialize().

weight_V()

static double weight_V ( void * priv, double x, double y )

static

Definition at line 115 of file vf_fftfilt.c.

Referenced by initialize().

copy_rev()

static void copy_rev ( float * dest, int w, int w2 )

static

Definition at line 117 of file vf_fftfilt.c.

Referenced by copy_vertical(), rdft_horizontal16(), and rdft_horizontal8().

rdft_horizontal8()

static int rdft_horizontal8 ( AVFilterContext * ctx, void * arg, int jobnr, int nb_jobs )

static

Definition at line 128 of file vf_fftfilt.c.

Referenced by config_props().

rdft_horizontal16()

static int rdft_horizontal16 ( AVFilterContext * ctx, void * arg, int jobnr, int nb_jobs )

static

Definition at line 159 of file vf_fftfilt.c.

Referenced by config_props().

irdft_horizontal8()

static int irdft_horizontal8 ( AVFilterContext * ctx, void * arg, int jobnr, int nb_jobs )

static

Definition at line 190 of file vf_fftfilt.c.

Referenced by config_props().

irdft_horizontal16()

static int irdft_horizontal16 ( AVFilterContext * ctx, void * arg, int jobnr, int nb_jobs )

static

Definition at line 220 of file vf_fftfilt.c.

Referenced by config_props().

initialize()

static av_cold int initialize ( AVFilterContext * ctx )

static

Definition at line 251 of file vf_fftfilt.c.

do_eval()

static void do_eval ( FFTFILTContext * s, AVFilterLink * inlink, int plane )

static

Definition at line 285 of file vf_fftfilt.c.

Referenced by config_props(), and filter_frame().

config_props()

static int config_props ( AVFilterLink * inlink )

static

Definition at line 307 of file vf_fftfilt.c.

multiply_data()

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

static

Definition at line 393 of file vf_fftfilt.c.

Referenced by filter_frame().

copy_vertical()

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

static

Definition at line 414 of file vf_fftfilt.c.

Referenced by filter_frame().

rdft_vertical()

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

static

Definition at line 439 of file vf_fftfilt.c.

Referenced by filter_frame().

irdft_vertical()

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

static

Definition at line 458 of file vf_fftfilt.c.

Referenced by filter_frame().

copy_horizontal()

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

static

Definition at line 477 of file vf_fftfilt.c.

Referenced by filter_frame().

filter_frame()

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

static

Definition at line 499 of file vf_fftfilt.c.

uninit()

static av_cold void uninit ( AVFilterContext * ctx )

static

Definition at line 547 of file vf_fftfilt.c.

Variable Documentation

var_names

const char* const var_names[] = { "X", "Y", "W", "H", "N", "WS", "HS", NULL }

static

Definition at line 84 of file vf_fftfilt.c.

fftfilt_options

const AVOption fftfilt_options[]

static

Initial value:

= {
    { "dc_Y",  "adjust gain in Y plane",              OFFSET(dc[Y]),      AV_OPT_TYPE_INT,    {.i64 = 0},      0,     1000,     FLAGS },
    { "dc_U",  "adjust gain in U plane",              OFFSET(dc[U]),      AV_OPT_TYPE_INT,    {.i64 = 0},      0,     1000,     FLAGS },
    { "dc_V",  "adjust gain in V plane",              OFFSET(dc[V]),      AV_OPT_TYPE_INT,    {.i64 = 0},      0,     1000,     FLAGS },
    { "weight_Y", "set luminance expression in Y plane",   OFFSET(weight_str[Y]), AV_OPT_TYPE_STRING, {.str = "1"}, 0, 0, FLAGS },
    { "weight_U", "set chrominance expression in U plane", OFFSET(weight_str[U]), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
    { "weight_V", "set chrominance expression in V plane", OFFSET(weight_str[V]), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
    { "eval", "specify when to evaluate expressions", OFFSET(eval_mode), AV_OPT_TYPE_INT, {.i64 = EVAL_MODE_INIT}, 0, EVAL_MODE_NB-1, FLAGS, .unit = "eval" },
         { "init",  "eval expressions once during initialization", 0, AV_OPT_TYPE_CONST, {.i64=EVAL_MODE_INIT},  .flags = FLAGS, .unit = "eval" },
         { "frame", "eval expressions per-frame",                  0, AV_OPT_TYPE_CONST, {.i64=EVAL_MODE_FRAME}, .flags = FLAGS, .unit = "eval" },
    {NULL},
}

Definition at line 92 of file vf_fftfilt.c.

pixel_fmts_fftfilt

enum AVPixelFormat pixel_fmts_fftfilt[]

static

Initial value:

= {
    AV_PIX_FMT_GRAY8,
    AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12,
    AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
    AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ444P,
    AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVJ420P,
    AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVJ422P,
    AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV420P10,
    AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV420P14,
    AV_PIX_FMT_YUV420P16,
    AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV422P10,
    AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV422P14,
    AV_PIX_FMT_YUV422P16,
    AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV444P10,
    AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV444P14,
    AV_PIX_FMT_YUV444P16,
    AV_PIX_FMT_NONE
}

Definition at line 567 of file vf_fftfilt.c.

fftfilt_inputs

const AVFilterPad fftfilt_inputs[]

static

Initial value:

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

Definition at line 586 of file vf_fftfilt.c.

ff_vf_fftfilt

const FFFilter ff_vf_fftfilt

Initial value:

= {
    .p.name          = "fftfilt",
    .p.description   = NULL_IF_CONFIG_SMALL("Apply arbitrary expressions to pixels in frequency domain."),
    .p.priv_class    = &fftfilt_class,
    .p.flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
    .priv_size       = sizeof(FFTFILTContext),
    FILTER_INPUTS(fftfilt_inputs),
    FILTER_OUTPUTS(ff_video_default_filterpad),
    FILTER_PIXFMTS_ARRAY(pixel_fmts_fftfilt),
    .init            = initialize,
    .uninit          = uninit,
}

Definition at line 595 of file vf_fftfilt.c.