FFmpeg
Data Structures | Macros | Functions | Variables
vf_vaguedenoiser.c File Reference
#include <float.h>
#include "libavutil/imgutils.h"
#include "libavutil/attributes.h"
#include "libavutil/common.h"
#include "libavutil/pixdesc.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures

struct  VagueDenoiserContext
 

Macros

#define OFFSET(x)   offsetof(VagueDenoiserContext, x)
 
#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
 
#define NPAD   10
 

Functions

 AVFILTER_DEFINE_CLASS (vaguedenoiser)
 
static int query_formats (AVFilterContext *ctx)
 
static int config_input (AVFilterLink *inlink)
 
static void copy (const float *p1, float *p2, const int length)
 
static void copyv (const float *p1, const int stride1, float *p2, const int length)
 
static void copyh (const float *p1, float *p2, const int stride2, const int length)
 
static void symmetric_extension (float *output, const int size, const int left_ext, const int right_ext)
 
static void transform_step (float *input, float *output, const int size, const int low_size, VagueDenoiserContext *s)
 
static void invert_step (const float *input, float *output, float *temp, const int size, VagueDenoiserContext *s)
 
static void hard_thresholding (float *block, const int width, const int height, const int stride, const float threshold, const float percent)
 
static void soft_thresholding (float *block, const int width, const int height, const int stride, const float threshold, const float percent)
 
static void qian_thresholding (float *block, const int width, const int height, const int stride, const float threshold, const float percent)
 
static float bayes_threshold (float *block, const int width, const int height, const int stride, const float threshold)
 
static void filter (VagueDenoiserContext *s, AVFrame *in, AVFrame *out)
 
static int filter_frame (AVFilterLink *inlink, AVFrame *in)
 
static av_cold int init (AVFilterContext *ctx)
 
static av_cold void uninit (AVFilterContext *ctx)
 

Variables

static const AVOption vaguedenoiser_options []
 
static const float analysis_low [9]
 
static const float analysis_high [7]
 
static const float synthesis_low [7]
 
static const float synthesis_high [9]
 
static const AVFilterPad vaguedenoiser_inputs []
 
static const AVFilterPad vaguedenoiser_outputs []
 
const AVFilter ff_vf_vaguedenoiser
 

Macro Definition Documentation

◆ OFFSET

#define OFFSET (   x)    offsetof(VagueDenoiserContext, x)

Definition at line 67 of file vf_vaguedenoiser.c.

◆ FLAGS

Definition at line 68 of file vf_vaguedenoiser.c.

◆ NPAD

#define NPAD   10

Definition at line 86 of file vf_vaguedenoiser.c.

Function Documentation

◆ AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS ( vaguedenoiser  )

◆ query_formats()

static int query_formats ( AVFilterContext ctx)
static

Definition at line 108 of file vf_vaguedenoiser.c.

◆ config_input()

static int config_input ( AVFilterLink inlink)
static

Definition at line 138 of file vf_vaguedenoiser.c.

◆ copy()

static void copy ( const float *  p1,
float *  p2,
const int  length 
)
inlinestatic

◆ copyv()

static void copyv ( const float *  p1,
const int  stride1,
float *  p2,
const int  length 
)
inlinestatic

Definition at line 196 of file vf_vaguedenoiser.c.

Referenced by filter().

◆ copyh()

static void copyh ( const float *  p1,
float *  p2,
const int  stride2,
const int  length 
)
inlinestatic

Definition at line 206 of file vf_vaguedenoiser.c.

Referenced by filter().

◆ symmetric_extension()

static void symmetric_extension ( float *  output,
const int  size,
const int  left_ext,
const int  right_ext 
)
static

Definition at line 222 of file vf_vaguedenoiser.c.

Referenced by invert_step(), and transform_step().

◆ transform_step()

static void transform_step ( float *  input,
float *  output,
const int  size,
const int  low_size,
VagueDenoiserContext s 
)
static

Definition at line 247 of file vf_vaguedenoiser.c.

Referenced by filter().

◆ invert_step()

static void invert_step ( const float *  input,
float *  output,
float *  temp,
const int  size,
VagueDenoiserContext s 
)
static

Definition at line 280 of file vf_vaguedenoiser.c.

Referenced by filter().

◆ hard_thresholding()

static void hard_thresholding ( float *  block,
const int  width,
const int  height,
const int  stride,
const float  threshold,
const float  percent 
)
static

Definition at line 335 of file vf_vaguedenoiser.c.

Referenced by init().

◆ soft_thresholding()

static void soft_thresholding ( float *  block,
const int  width,
const int  height,
const int  stride,
const float  threshold,
const float  percent 
)
static

Definition at line 351 of file vf_vaguedenoiser.c.

Referenced by init().

◆ qian_thresholding()

static void qian_thresholding ( float *  block,
const int  width,
const int  height,
const int  stride,
const float  threshold,
const float  percent 
)
static

Definition at line 370 of file vf_vaguedenoiser.c.

Referenced by init().

◆ bayes_threshold()

static float bayes_threshold ( float *  block,
const int  width,
const int  height,
const int  stride,
const float  threshold 
)
static

Definition at line 393 of file vf_vaguedenoiser.c.

Referenced by filter().

◆ filter()

static void filter ( VagueDenoiserContext s,
AVFrame in,
AVFrame out 
)
static

Definition at line 410 of file vf_vaguedenoiser.c.

Referenced by filter_frame().

◆ filter_frame()

static int filter_frame ( AVFilterLink inlink,
AVFrame in 
)
static

Definition at line 534 of file vf_vaguedenoiser.c.

◆ init()

static av_cold int init ( AVFilterContext ctx)
static

Definition at line 562 of file vf_vaguedenoiser.c.

◆ uninit()

static av_cold void uninit ( AVFilterContext ctx)
static

Definition at line 581 of file vf_vaguedenoiser.c.

Variable Documentation

◆ vaguedenoiser_options

const AVOption vaguedenoiser_options[]
static
Initial value:
= {
{ "threshold", "set filtering strength", OFFSET(threshold), AV_OPT_TYPE_FLOAT, {.dbl=2.}, 0,DBL_MAX, FLAGS },
{ "method", "set filtering method", OFFSET(method), AV_OPT_TYPE_INT, {.i64=2 }, 0, 2, FLAGS, "method" },
{ "hard", "hard thresholding", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "method" },
{ "soft", "soft thresholding", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "method" },
{ "garrote", "garrote thresholding", 0, AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, FLAGS, "method" },
{ "nsteps", "set number of steps", OFFSET(nsteps), AV_OPT_TYPE_INT, {.i64=6 }, 1, 32, FLAGS },
{ "percent", "set percent of full denoising", OFFSET(percent),AV_OPT_TYPE_FLOAT, {.dbl=85}, 0,100, FLAGS },
{ "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=15 }, 0, 15, FLAGS },
{ "type", "set threshold type", OFFSET(type), AV_OPT_TYPE_INT, {.i64=0 }, 0, 1, FLAGS, "type" },
{ "universal", "universal (VisuShrink)", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "type" },
{ "bayes", "bayes (BayesShrink)", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "type" },
{ NULL }
}

Definition at line 69 of file vf_vaguedenoiser.c.

◆ analysis_low

const float analysis_low[9]
static
Initial value:
= {
0.037828455506995f, -0.023849465019380f, -0.110624404418423f, 0.377402855612654f,
0.852698679009403f, 0.377402855612654f, -0.110624404418423f, -0.023849465019380f, 0.037828455506995f
}

Definition at line 88 of file vf_vaguedenoiser.c.

Referenced by transform_step().

◆ analysis_high

const float analysis_high[7]
static
Initial value:
= {
-0.064538882628938f, 0.040689417609558f, 0.418092273222212f, -0.788485616405664f,
0.418092273222212f, 0.040689417609558f, -0.064538882628938f
}

Definition at line 93 of file vf_vaguedenoiser.c.

Referenced by transform_step().

◆ synthesis_low

const float synthesis_low[7]
static
Initial value:
= {
-0.064538882628938f, -0.040689417609558f, 0.418092273222212f, 0.788485616405664f,
0.418092273222212f, -0.040689417609558f, -0.064538882628938f
}

Definition at line 98 of file vf_vaguedenoiser.c.

Referenced by invert_step().

◆ synthesis_high

const float synthesis_high[9]
static
Initial value:
= {
-0.037828455506995f, -0.023849465019380f, 0.110624404418423f, 0.377402855612654f,
-0.852698679009403f, 0.377402855612654f, 0.110624404418423f, -0.023849465019380f, -0.037828455506995f
}

Definition at line 103 of file vf_vaguedenoiser.c.

Referenced by invert_step().

◆ vaguedenoiser_inputs

const AVFilterPad vaguedenoiser_inputs[]
static
Initial value:
= {
{
.name = "default",
.config_props = config_input,
.filter_frame = filter_frame,
},
}

Definition at line 591 of file vf_vaguedenoiser.c.

◆ vaguedenoiser_outputs

const AVFilterPad vaguedenoiser_outputs[]
static
Initial value:
= {
{
.name = "default",
},
}

Definition at line 601 of file vf_vaguedenoiser.c.

◆ ff_vf_vaguedenoiser

const AVFilter ff_vf_vaguedenoiser
Initial value:
= {
.name = "vaguedenoiser",
.description = NULL_IF_CONFIG_SMALL("Apply a Wavelet based Denoiser."),
.priv_size = sizeof(VagueDenoiserContext),
.priv_class = &vaguedenoiser_class,
.init = init,
}

Definition at line 608 of file vf_vaguedenoiser.c.

query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_vaguedenoiser.c:108
OFFSET
#define OFFSET(x)
Definition: vf_vaguedenoiser.c:67
vaguedenoiser_outputs
static const AVFilterPad vaguedenoiser_outputs[]
Definition: vf_vaguedenoiser.c:601
type
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf type
Definition: writing_filters.txt:86
planes
static const struct @318 planes[]
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:152
VagueDenoiserContext
Definition: vf_vaguedenoiser.c:35
NULL
#define NULL
Definition: coverity.c:32
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_vaguedenoiser.c:534
vaguedenoiser_inputs
static const AVFilterPad vaguedenoiser_inputs[]
Definition: vf_vaguedenoiser.c:591
FLAGS
#define FLAGS
Definition: vf_vaguedenoiser.c:68
init
static av_cold int init(AVFilterContext *ctx)
Definition: vf_vaguedenoiser.c:562
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_vaguedenoiser.c:581
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_vaguedenoiser.c:138
AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
Definition: avfilter.h:130
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:227
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:224
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:153
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:233