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, const int unused)
 
static void soft_thresholding (float *block, const int width, const int height, const int stride, const float threshold, const float percent, const int nsteps)
 
static void qian_thresholding (float *block, const int width, const int height, const int stride, const float threshold, const float percent, const int unused)
 
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 []
 
AVFilter ff_vf_vaguedenoiser
 

Macro Definition Documentation

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

Definition at line 66 of file vf_vaguedenoiser.c.

Definition at line 67 of file vf_vaguedenoiser.c.

#define NPAD   10

Definition at line 82 of file vf_vaguedenoiser.c.

Referenced by filter(), invert_step(), symmetric_extension(), and transform_step().

Function Documentation

AVFILTER_DEFINE_CLASS ( vaguedenoiser  )
static int query_formats ( AVFilterContext ctx)
static

Definition at line 104 of file vf_vaguedenoiser.c.

static int config_input ( AVFilterLink inlink)
static

Definition at line 132 of file vf_vaguedenoiser.c.

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

Definition at line 190 of file vf_vaguedenoiser.c.

Referenced by filter().

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

Definition at line 200 of file vf_vaguedenoiser.c.

Referenced by filter().

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

Definition at line 216 of file vf_vaguedenoiser.c.

Referenced by invert_step(), and transform_step().

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

Definition at line 241 of file vf_vaguedenoiser.c.

Referenced by filter().

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

Definition at line 274 of file vf_vaguedenoiser.c.

Referenced by filter().

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

Definition at line 329 of file vf_vaguedenoiser.c.

Referenced by init().

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

Definition at line 345 of file vf_vaguedenoiser.c.

Referenced by init().

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

Definition at line 372 of file vf_vaguedenoiser.c.

Referenced by init().

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

Definition at line 395 of file vf_vaguedenoiser.c.

Referenced by filter_frame().

static int filter_frame ( AVFilterLink inlink,
AVFrame in 
)
static

Definition at line 498 of file vf_vaguedenoiser.c.

static av_cold int init ( AVFilterContext ctx)
static

Definition at line 526 of file vf_vaguedenoiser.c.

static av_cold void uninit ( AVFilterContext ctx)
static

Definition at line 545 of file vf_vaguedenoiser.c.

Variable Documentation

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", "garotte 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 },
{ NULL }
}
#define NULL
Definition: coverity.c:32
#define FLAGS
#define OFFSET(x)
static const struct @317 planes[]

Definition at line 68 of file vf_vaguedenoiser.c.

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 84 of file vf_vaguedenoiser.c.

Referenced by transform_step().

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 89 of file vf_vaguedenoiser.c.

Referenced by transform_step().

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 94 of file vf_vaguedenoiser.c.

Referenced by invert_step().

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 99 of file vf_vaguedenoiser.c.

Referenced by invert_step().

const AVFilterPad vaguedenoiser_inputs[]
static
Initial value:
= {
{
.name = "default",
.config_props = config_input,
.filter_frame = filter_frame,
},
{ NULL }
}
#define NULL
Definition: coverity.c:32
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
static int config_input(AVFilterLink *inlink)

Definition at line 555 of file vf_vaguedenoiser.c.

const AVFilterPad vaguedenoiser_outputs[]
static
Initial value:
= {
{
.name = "default",
},
{ NULL }
}
#define NULL
Definition: coverity.c:32

Definition at line 566 of file vf_vaguedenoiser.c.

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,
}
static av_cold int init(AVFilterContext *ctx)
#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:125
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
static const AVFilterPad vaguedenoiser_outputs[]
static const AVFilterPad vaguedenoiser_inputs[]
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
static int query_formats(AVFilterContext *ctx)
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
#define flags(name, subs,...)
Definition: cbs_av1.c:561
static av_cold void uninit(AVFilterContext *ctx)

Definition at line 574 of file vf_vaguedenoiser.c.