vf_hqdn3d.c File Reference

high quality 3d video denoiser, ported from MPlayer libmpcodecs/vf_hqdn3d.c. More...

#include <float.h>
#include "config.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"
#include "vf_hqdn3d.h"

Include dependency graph for vf_hqdn3d.c:

Go to the source code of this file.

Macros
#define	LUT_BITS   (depth==16 ? 8 : 4)
#define	LOAD(x)
#define	STORE(x, val)
#define	denoise(...)
#define	PARAM1_DEFAULT   4.0
#define	PARAM2_DEFAULT   3.0
#define	PARAM3_DEFAULT   6.0
#define	OFFSET(x)   offsetof(HQDN3DContext, x)
#define	FLAGS   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM

Functions
static av_always_inline uint32_t	lowpass (int prev, int cur, int16_t *coef, int depth)
static av_always_inline void	denoise_temporal (uint8_t *src, uint8_t *dst, uint16_t *frame_ant, int w, int h, int sstride, int dstride, int16_t *temporal, int depth)
static av_always_inline void	denoise_spatial (HQDN3DContext *hqdn3d, uint8_t *src, uint8_t *dst, uint16_t *line_ant, uint16_t *frame_ant, int w, int h, int sstride, int dstride, int16_t *spatial, int16_t *temporal, int depth)
static av_always_inline void	denoise_depth (HQDN3DContext *hqdn3d, uint8_t *src, uint8_t *dst, uint16_t *line_ant, uint16_t **frame_ant_ptr, int w, int h, int sstride, int dstride, int16_t *spatial, int16_t *temporal, int depth)
static int16_t *	precalc_coefs (double dist25, int depth)
static int	init (AVFilterContext *ctx)
static void	uninit (AVFilterContext *ctx)
static int	query_formats (AVFilterContext *ctx)
static int	config_input (AVFilterLink *inlink)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)

Variables
static const AVOption	options []
static const AVClass	hqdn3d_class
static const AVFilterPad	avfilter_vf_hqdn3d_inputs []
static const AVFilterPad	avfilter_vf_hqdn3d_outputs []
AVFilter	avfilter_vf_hqdn3d

Detailed Description

high quality 3d video denoiser, ported from MPlayer libmpcodecs/vf_hqdn3d.c.

Definition in file vf_hqdn3d.c.

Macro Definition Documentation

#define denoise

(

...

)

Value:

switch (hqdn3d->depth) {\
        case  8: denoise_depth(__VA_ARGS__,  8); break;\
        case  9: denoise_depth(__VA_ARGS__,  9); break;\
        case 10: denoise_depth(__VA_ARGS__, 10); break;\
        case 16: denoise_depth(__VA_ARGS__, 16); break;\
    }

Definition at line 151 of file vf_hqdn3d.c.

Referenced by filter_frame().

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM

Definition at line 312 of file vf_hqdn3d.c.

#define LOAD

(

x

)

Value:

(((depth == 8 ? src[x] : AV_RN16A(src + (x) * 2)) << (16 - depth))\
                 + (((1 << (16 - depth)) - 1) >> 1))

Definition at line 44 of file vf_hqdn3d.c.

Referenced by denoise_depth(), denoise_spatial(), and denoise_temporal().

#define LUT_BITS   (depth==16 ? 8 : 4)

Definition at line 43 of file vf_hqdn3d.c.

Referenced by denoise_spatial(), denoise_temporal(), lowpass(), and precalc_coefs().

#define OFFSET

(

x

)

offsetof(HQDN3DContext, x)

Definition at line 311 of file vf_hqdn3d.c.

#define PARAM1_DEFAULT   4.0

Definition at line 180 of file vf_hqdn3d.c.

Referenced by init().

#define PARAM2_DEFAULT   3.0

Definition at line 181 of file vf_hqdn3d.c.

Referenced by init().

#define PARAM3_DEFAULT   6.0

Definition at line 182 of file vf_hqdn3d.c.

Referenced by init().

#define STORE	(		x,
			val
	)

Value:

(depth == 8 ? dst[x] = (val) >> (16 - depth) : \
                                   AV_WN16A(dst + (x) * 2, (val) >> (16 - depth)))

Definition at line 46 of file vf_hqdn3d.c.

Referenced by denoise_spatial(), and denoise_temporal().

Function Documentation

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 248 of file vf_hqdn3d.c.

static av_always_inline void denoise_depth ( HQDN3DContext *  hqdn3d, uint8_t *  src, uint8_t *  dst, uint16_t *  line_ant, uint16_t **  frame_ant_ptr, int  w, int  h, int  sstride, int  dstride, int16_t *  spatial, int16_t *  temporal, int  depth  )

static

Definition at line 123 of file vf_hqdn3d.c.

static av_always_inline void denoise_spatial ( HQDN3DContext *  hqdn3d, uint8_t *  src, uint8_t *  dst, uint16_t *  line_ant, uint16_t *  frame_ant, int  w, int  h, int  sstride, int  dstride, int16_t *  spatial, int16_t *  temporal, int  depth  )

static

Definition at line 79 of file vf_hqdn3d.c.

Referenced by denoise_depth().

static av_always_inline void denoise_temporal ( uint8_t *  src, uint8_t *  dst, uint16_t *  frame_ant, int  w, int  h, int  sstride, int  dstride, int16_t *  temporal, int  depth  )

static

Definition at line 57 of file vf_hqdn3d.c.

Referenced by denoise_depth().

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

static

Definition at line 274 of file vf_hqdn3d.c.

static int init ( AVFilterContext *  ctx )

static

Definition at line 184 of file vf_hqdn3d.c.

static av_always_inline uint32_t lowpass ( int  prev, int  cur, int16_t *  coef, int  depth  )

static

Definition at line 50 of file vf_hqdn3d.c.

Referenced by denoise_spatial(), and denoise_temporal().

static int16_t* precalc_coefs ( double  dist25, int  depth  )

static

Definition at line 159 of file vf_hqdn3d.c.

Referenced by config_input().

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 218 of file vf_hqdn3d.c.

static void uninit ( AVFilterContext *  ctx )

static

Definition at line 204 of file vf_hqdn3d.c.

Variable Documentation

AVFilter avfilter_vf_hqdn3d

Initial value:

= {
    .name          = "hqdn3d",
    .description   = NULL_IF_CONFIG_SMALL("Apply a High Quality 3D Denoiser."),

    .priv_size     = sizeof(HQDN3DContext),
    .priv_class    = &hqdn3d_class,
    .init          = init,
    .uninit        = uninit,
    .query_formats = query_formats,

    .inputs    = avfilter_vf_hqdn3d_inputs,

    .outputs   = avfilter_vf_hqdn3d_outputs,
}

Definition at line 347 of file vf_hqdn3d.c.

const AVFilterPad avfilter_vf_hqdn3d_inputs[]

static

Initial value:

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

Definition at line 328 of file vf_hqdn3d.c.

const AVFilterPad avfilter_vf_hqdn3d_outputs[]

static

Initial value:

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

Definition at line 339 of file vf_hqdn3d.c.

const AVClass hqdn3d_class

static

Initial value:

= {
    .class_name = "hqdn3d",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 321 of file vf_hqdn3d.c.

const AVOption options[]

static

Initial value:

= {
    { "luma_spatial",   "spatial luma strength",    OFFSET(strength[LUMA_SPATIAL]),   AV_OPT_TYPE_DOUBLE, { .dbl = 0.0 }, 0, DBL_MAX, FLAGS },
    { "chroma_spatial", "spatial chroma strength",  OFFSET(strength[CHROMA_SPATIAL]), AV_OPT_TYPE_DOUBLE, { .dbl = 0.0 }, 0, DBL_MAX, FLAGS },
    { "luma_tmp",       "temporal luma strength",   OFFSET(strength[LUMA_TMP]),       AV_OPT_TYPE_DOUBLE, { .dbl = 0.0 }, 0, DBL_MAX, FLAGS },
    { "chroma_tmp",     "temporal chroma strength", OFFSET(strength[CHROMA_TMP]),     AV_OPT_TYPE_DOUBLE, { .dbl = 0.0 }, 0, DBL_MAX, FLAGS },
    { NULL },
}

Definition at line 313 of file vf_hqdn3d.c.