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

OFFSET

#define OFFSET

(

x

)

offsetof(VagueDenoiserContext, x)

Definition at line 66 of file vf_vaguedenoiser.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM

Definition at line 67 of file vf_vaguedenoiser.c.

NPAD

#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()

AVFILTER_DEFINE_CLASS

(

vaguedenoiser

)

query_formats()

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 104 of file vf_vaguedenoiser.c.

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 132 of file vf_vaguedenoiser.c.

copy()

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

inlinestatic

Definition at line 185 of file vf_vaguedenoiser.c.

Referenced by av_buffersrc_add_frame_flags(), av_buffersrc_add_frame_internal(), avfilter_init_str(), bayer_to_rgb24_wrapper(), bayer_to_yv12_wrapper(), decode_tdlt(), ff_frame_thread_init(), ff_jni_jstring_to_utf_chars(), filter(), filter_frame(), intlist_read(), intra_predict(), qpeg_decode_intra(), read_thread(), rle_uncompress(), roq_decode_frame(), and rtmp_write().

copyv()

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().

copyh()

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().

symmetric_extension()

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().

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().

invert_step()

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().

hard_thresholding()

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().

soft_thresholding()

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().

qian_thresholding()

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().

filter()

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

static

Definition at line 395 of file vf_vaguedenoiser.c.

Referenced by filter_frame().

filter_frame()

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

static

Definition at line 498 of file vf_vaguedenoiser.c.

init()

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 526 of file vf_vaguedenoiser.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 545 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", "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 }
}

Definition at line 68 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 84 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 89 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 94 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 99 of file vf_vaguedenoiser.c.

Referenced by invert_step().

vaguedenoiser_inputs

const AVFilterPad vaguedenoiser_inputs[]

static

Initial value:

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

Definition at line 555 of file vf_vaguedenoiser.c.

vaguedenoiser_outputs

const AVFilterPad vaguedenoiser_outputs[]

static

Initial value:

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

Definition at line 566 of file vf_vaguedenoiser.c.

ff_vf_vaguedenoiser

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,
    .uninit        = uninit,
    .query_formats = query_formats,
    .inputs        = vaguedenoiser_inputs,
    .outputs       = vaguedenoiser_outputs,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
}

Definition at line 574 of file vf_vaguedenoiser.c.