vf_fftdnoiz.c File Reference

#include <float.h>
#include "libavutil/avassert.h"
#include "libavutil/common.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "internal.h"
#include "libavcodec/avfft.h"

Go to the source code of this file.

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

Macros
#define	OFFSET(x)   offsetof(FFTdnoizContext, x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Enumerations
enum	BufferTypes { CURRENT , PREV , NEXT , BSIZE }

Functions
	AVFILTER_DEFINE_CLASS (fftdnoiz)
static av_cold int	init (AVFilterContext *ctx)
static int	query_formats (AVFilterContext *ctx)
static void	import_row8 (FFTComplex *dst, uint8_t *src, int rw)
static void	export_row8 (FFTComplex *src, uint8_t *dst, int rw, float scale, int depth)
static void	import_row16 (FFTComplex *dst, uint8_t *srcp, int rw)
static void	export_row16 (FFTComplex *src, uint8_t *dstp, int rw, float scale, int depth)
static int	config_input (AVFilterLink *inlink)
static void	import_plane (FFTdnoizContext *s, uint8_t *srcp, int src_linesize, float *buffer, int buffer_linesize, int plane)
static void	export_plane (FFTdnoizContext *s, uint8_t *dstp, int dst_linesize, float *buffer, int buffer_linesize, int plane)
static void	filter_plane3d2 (FFTdnoizContext *s, int plane, float *pbuffer, float *nbuffer)
static void	filter_plane3d1 (FFTdnoizContext *s, int plane, float *pbuffer)
static void	filter_plane2d (FFTdnoizContext *s, int plane)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
static int	request_frame (AVFilterLink *outlink)
static av_cold void	uninit (AVFilterContext *ctx)

Variables
static const AVOption	fftdnoiz_options []
static const AVFilterPad	fftdnoiz_inputs []
static const AVFilterPad	fftdnoiz_outputs []
AVFilter	ff_vf_fftdnoiz

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(FFTdnoizContext, x)

Definition at line 72 of file vf_fftdnoiz.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 73 of file vf_fftdnoiz.c.

Enumeration Type Documentation

BufferTypes

enum BufferTypes

Enumerator
CURRENT
PREV
NEXT
BSIZE

Definition at line 29 of file vf_fftdnoiz.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

fftdnoiz

)

init()

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 94 of file vf_fftdnoiz.c.

query_formats()

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 111 of file vf_fftdnoiz.c.

import_row8()

static void import_row8 ( FFTComplex *  dst, uint8_t *  src, int  rw  )

static

Definition at line 149 of file vf_fftdnoiz.c.

Referenced by config_input().

export_row8()

static void export_row8 ( FFTComplex *  src, uint8_t *  dst, int  rw, float  scale, int  depth  )

static

Definition at line 159 of file vf_fftdnoiz.c.

Referenced by config_input().

import_row16()

static void import_row16 ( FFTComplex *  dst, uint8_t *  srcp, int  rw  )

static

Definition at line 167 of file vf_fftdnoiz.c.

Referenced by config_input().

export_row16()

static void export_row16 ( FFTComplex *  src, uint8_t *  dstp, int  rw, float  scale, int  depth  )

static

Definition at line 178 of file vf_fftdnoiz.c.

Referenced by config_input().

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 187 of file vf_fftdnoiz.c.

import_plane()

static void import_plane ( FFTdnoizContext *  s, uint8_t *  srcp, int  src_linesize, float *  buffer, int  buffer_linesize, int  plane  )

static

Definition at line 250 of file vf_fftdnoiz.c.

Referenced by filter_frame().

export_plane()

static void export_plane ( FFTdnoizContext *  s, uint8_t *  dstp, int  dst_linesize, float *  buffer, int  buffer_linesize, int  plane  )

static

Definition at line 314 of file vf_fftdnoiz.c.

Referenced by filter_frame().

filter_plane3d2()

static void filter_plane3d2 ( FFTdnoizContext *  s, int  plane, float *  pbuffer, float *  nbuffer  )

static

Definition at line 372 of file vf_fftdnoiz.c.

Referenced by filter_frame().

filter_plane3d1()

static void filter_plane3d1 ( FFTdnoizContext *  s, int  plane, float *  pbuffer  )

static

Definition at line 432 of file vf_fftdnoiz.c.

Referenced by filter_frame().

filter_plane2d()

static void filter_plane2d ( FFTdnoizContext *  s, int  plane  )

static

Definition at line 484 of file vf_fftdnoiz.c.

Referenced by filter_frame().

filter_frame()

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

static

Definition at line 518 of file vf_fftdnoiz.c.

Referenced by request_frame().

request_frame()

static int request_frame ( AVFilterLink *  outlink )

static

Definition at line 618 of file vf_fftdnoiz.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 647 of file vf_fftdnoiz.c.

Variable Documentation

fftdnoiz_options

const AVOption fftdnoiz_options[]

static

Initial value:

= {
    { "sigma",   "set denoise strength",
        OFFSET(sigma),      AV_OPT_TYPE_FLOAT, {.dbl=1},        0,  30, .flags = FLAGS },
    { "amount",  "set amount of denoising",
        OFFSET(amount),     AV_OPT_TYPE_FLOAT, {.dbl=1},     0.01,   1, .flags = FLAGS },
    { "block",   "set block log2(size)",
        OFFSET(block_bits), AV_OPT_TYPE_INT,   {.i64=4},        3,   6, .flags = FLAGS },
    { "overlap", "set block overlap",
        OFFSET(overlap),    AV_OPT_TYPE_FLOAT, {.dbl=0.5},    0.2, 0.8, .flags = FLAGS },
    { "prev",    "set number of previous frames for temporal denoising",
        OFFSET(nb_prev),    AV_OPT_TYPE_INT,   {.i64=0},        0,   1, .flags = FLAGS },
    { "next",    "set number of next frames for temporal denoising",
        OFFSET(nb_next),    AV_OPT_TYPE_INT,   {.i64=0},        0,   1, .flags = FLAGS },
    { "planes",  "set planes to filter",
        OFFSET(planesf),    AV_OPT_TYPE_INT,   {.i64=7},        0,  15, .flags = FLAGS },
    { NULL }
}

Definition at line 74 of file vf_fftdnoiz.c.

fftdnoiz_inputs

const AVFilterPad fftdnoiz_inputs[]

static

Initial value:

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

Definition at line 669 of file vf_fftdnoiz.c.

fftdnoiz_outputs

const AVFilterPad fftdnoiz_outputs[]

static

Initial value:

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

Definition at line 679 of file vf_fftdnoiz.c.

ff_vf_fftdnoiz

AVFilter ff_vf_fftdnoiz

Initial value:

= {
    .name          = "fftdnoiz",
    .description   = NULL_IF_CONFIG_SMALL("Denoise frames using 3D FFT."),
    .priv_size     = sizeof(FFTdnoizContext),
    .init          = init,
    .uninit        = uninit,
    .query_formats = query_formats,
    .inputs        = fftdnoiz_inputs,
    .outputs       = fftdnoiz_outputs,
    .priv_class    = &fftdnoiz_class,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
}

Definition at line 688 of file vf_fftdnoiz.c.