libavfilter/libmpcodecs/vf_ow.c File Reference

#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include <math.h>
#include "mp_msg.h"
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"

Go to the source code of this file.

Data Structures
struct	vf_priv_s
	Stores persistant variables. More...
Defines
#define	S   1.41421356237
Functions
static int	mirror (int x, int w)
static void	decompose (float *dstL, float *dstH, float *src, int stride, int w)
static void	compose (float *dst, float *srcL, float *srcH, int stride, int w)
static void	decompose2D (float *dstL, float *dstH, float *src, int xstride, int ystride, int step, int w, int h)
static void	compose2D (float *dst, float *srcL, float *srcH, int xstride, int ystride, int step, int w, int h)
static void	decompose2D2 (float *dst[4], float *src, float *temp[2], int stride, int step, int w, int h)
static void	compose2D2 (float *dst, float *src[4], float *temp[2], int stride, int step, int w, int h)
static void	filter (struct vf_priv_s *p, uint8_t *dst, uint8_t *src, int dst_stride, int src_stride, int width, int height, int is_luma)
static int	config (struct vf_instance *vf, int width, int height, int d_width, int d_height, unsigned int flags, unsigned int outfmt)
static void	get_image (struct vf_instance *vf, mp_image_t *mpi)
static int	put_image (struct vf_instance *vf, mp_image_t *mpi, double pts)
static void	uninit (struct vf_instance *vf)
static int	query_format (struct vf_instance *vf, unsigned int fmt)
static int	vf_open (vf_instance_t *vf, char *args)
Variables
static const uint8_t	dither [8][8]
static const double	coeff [2][5]
static const double	icoeff [2][5]
const vf_info_t	vf_info_ow

---

Define Documentation

#define S   1.41421356237

Definition at line 62 of file vf_ow.c.

---

Function Documentation

static void compose	(	float *	dst,
		float *	srcL,
		float *	srcH,
		int	stride,
		int	w
	)			[inline, static]

Definition at line 119 of file vf_ow.c.

Referenced by compose2D().

static void compose2D	(	float *	dst,
		float *	srcL,
		float *	srcH,
		int	xstride,
		int	ystride,
		int	step,
		int	w,
		int	h
	)			[inline, static]

Definition at line 142 of file vf_ow.c.

Referenced by compose2D2().

static void compose2D2	(	float *	dst,
		float *	src[4],
		float *	temp[2],
		int	stride,
		int	step,
		int	w,
		int	h
	)			[static]

Definition at line 155 of file vf_ow.c.

Referenced by filter().

static int config	(	struct vf_instance *	vf,
		int	width,
		int	height,
		int	d_width,
		int	d_height,
		unsigned int	flags,
		unsigned int	outfmt
	)			[static]

Definition at line 206 of file vf_ow.c.

static void decompose	(	float *	dstL,
		float *	dstH,
		float *	src,
		int	stride,
		int	w
	)			[inline, static]

Definition at line 103 of file vf_ow.c.

Referenced by decompose2D().

static void decompose2D	(	float *	dstL,
		float *	dstH,
		float *	src,
		int	xstride,
		int	ystride,
		int	step,
		int	w,
		int	h
	)			[inline, static]

Definition at line 135 of file vf_ow.c.

Referenced by decompose2D2().

static void decompose2D2	(	float *	dst[4],
		float *	src,
		float *	temp[2],
		int	stride,
		int	step,
		int	w,
		int	h
	)			[static]

Definition at line 149 of file vf_ow.c.

Referenced by filter().

static void filter	(	struct vf_priv_s *	p,
		uint8_t *	dst,
		uint8_t *	src,
		int	dst_stride,
		int	src_stride,
		int	width,
		int	height,
		int	is_luma
	)			[static]

Definition at line 161 of file vf_ow.c.

static void get_image	(	struct vf_instance *	vf,
		mp_image_t *	mpi
	)			[static]

Definition at line 219 of file vf_ow.c.

static int mirror	(	int	x,
		int	w
	)			[inline, static]

Definition at line 95 of file vf_ow.c.

static int put_image	(	struct vf_instance *	vf,
		mp_image_t *	mpi,
		double	pts
	)			[static]

Definition at line 236 of file vf_ow.c.

static int query_format	(	struct vf_instance *	vf,
		unsigned int	fmt
	)			[static]

Definition at line 273 of file vf_ow.c.

static void uninit

(

struct vf_instance *

vf

)

[static]

Definition at line 257 of file vf_ow.c.

static int vf_open	(	vf_instance_t *	vf,
		char *	args
	)			[static]

Definition at line 292 of file vf_ow.c.

---

Variable Documentation

const double coeff[2][5] [static]

Initial value:

{
    {
         0.6029490182363579  *S,
         0.2668641184428723  *S,
        -0.07822326652898785 *S,
        -0.01686411844287495 *S,
         0.02674875741080976 *S
    },{
         1.115087052456994   /S,
        -0.5912717631142470  /S,
        -0.05754352622849957 /S,
         0.09127176311424948 /S
    }
}

Definition at line 64 of file vf_ow.c.

Referenced by adpcm_decode_frame(), dct_quantize_refine(), dct_quantize_trellis_c(), decode_block(), decode_block_coeffs_internal(), encode_block(), ff_eac3_apply_spectral_extension(), get_block(), getCoeff(), init_dequantizer(), init_pass2(), initFilter(), psy_3gpp_init(), unpack_coeffs(), unpack_vlcs(), vlc_decode_block(), vp5_parse_coeff(), vp6_parse_coeff(), and vp6_parse_coeff_huffman().

const uint8_t dither[8][8] [static]

Initial value:

{
{  0,  48,  12,  60,   3,  51,  15,  63, },
{ 32,  16,  44,  28,  35,  19,  47,  31, },
{  8,  56,   4,  52,  11,  59,   7,  55, },
{ 40,  24,  36,  20,  43,  27,  39,  23, },
{  2,  50,  14,  62,   1,  49,  13,  61, },
{ 34,  18,  46,  30,  33,  17,  45,  29, },
{ 10,  58,   6,  54,   9,  57,   5,  53, },
{ 42,  26,  38,  22,  41,  25,  37,  21, },
}

Todo:

try to change to int

try lifting based implementation

optimize optimize optimize

hard tresholding

use QP to decide filter strength

wavelet normalization / least squares optimal signal vs. noise thresholds

Definition at line 41 of file vf_ow.c.

const double icoeff[2][5] [static]

Initial value:

{
    {
         1.115087052456994   /S,
         0.5912717631142470  /S,
        -0.05754352622849957 /S,
        -0.09127176311424948 /S
    },{
         0.6029490182363579  *S,
        -0.2668641184428723  *S,
        -0.07822326652898785 *S,
         0.01686411844287495 *S,
         0.02674875741080976 *S
    }
}

Definition at line 79 of file vf_ow.c.

const vf_info_t vf_info_ow

Initial value:

 {
    "overcomplete wavelet denoiser",
    "ow",
    "Michael Niedermayer",
    "",
    vf_open,
    NULL
}

Definition at line 315 of file vf_ow.c.