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mpv/libmpcodecs/vf_denoise3d.c
albeu 33b62af947 Add the new -vf option wich is the same as vop in reverse order. 
Syntax is we decided, so you can give the nomes or not with both
vop and vf. vf take precedence over vop.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9594 b3059339-0415-0410-9bf9-f77b7e298cf2
2003-03-15 18:01:02 +00:00

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/*
Copyright (C) 2003 Daniel Moreno <comac@comac.darktech.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <math.h>
#include "../config.h"
#include "../mp_msg.h"
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
#include "../libvo/fastmemcpy.h"
#define PARAM1_DEFAULT 4.0
#define PARAM2_DEFAULT 3.0
#define PARAM3_DEFAULT 6.0
//===========================================================================//
struct vf_priv_s {
int Coefs[4][512];
unsigned char *Line;
mp_image_t *pmpi;
};
/***************************************************************************/
static int config(struct vf_instance_s* vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt){
if(vf->priv->Line) free(vf->priv->Line);
vf->priv->Line = malloc(width);
vf->priv->pmpi=NULL;
// vf->default_caps &= !VFCAP_ACCEPT_STRIDE;
return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
}
static void uninit(struct vf_instance_s* vf)
{
free(vf->priv->Line);
}
#define LowPass(Prev, Curr, Coef) (Curr + Coef[Prev - Curr])
static void deNoise(unsigned char *Frame, // mpi->planes[x]
unsigned char *FramePrev, // pmpi->planes[x]
unsigned char *FrameDest, // dmpi->planes[x]
unsigned char *LineAnt, // vf->priv->Line (width bytes)
int W, int H, int sStride, int pStride, int dStride,
int *Horizontal, int *Vertical, int *Temporal)
{
int X, Y;
int sLineOffs = 0, pLineOffs = 0, dLineOffs = 0;
unsigned char PixelAnt;
/* First pixel has no left nor top neightbour. Only previous frame */
LineAnt[0] = PixelAnt = Frame[0];
FrameDest[0] = LowPass(FramePrev[0], LineAnt[0], Temporal);
/* Fist line has no top neightbour. Only left one for each pixel and
* last frame */
for (X = 1; X < W; X++)
{
PixelAnt = LowPass(PixelAnt, Frame[X], Horizontal);
LineAnt[X] = PixelAnt;
FrameDest[X] = LowPass(FramePrev[X], LineAnt[X], Temporal);
}
for (Y = 1; Y < H; Y++)
{
sLineOffs += sStride, pLineOffs += pStride, dLineOffs += dStride;
/* First pixel on each line doesn't have previous pixel */
PixelAnt = Frame[sLineOffs];
LineAnt[0] = LowPass(LineAnt[0], PixelAnt, Vertical);
FrameDest[dLineOffs] = LowPass(FramePrev[pLineOffs], LineAnt[0], Temporal);
for (X = 1; X < W; X++)
{
/* The rest are normal */
PixelAnt = LowPass(PixelAnt, Frame[sLineOffs+X], Horizontal);
LineAnt[X] = LowPass(LineAnt[X], PixelAnt, Vertical);
FrameDest[dLineOffs+X] = LowPass(FramePrev[pLineOffs+X], LineAnt[X], Temporal);
}
}
}
static int put_image(struct vf_instance_s* vf, mp_image_t *mpi){
int cw= mpi->w >> mpi->chroma_x_shift;
int ch= mpi->h >> mpi->chroma_y_shift;
int W = mpi->w, H = mpi->h;
mp_image_t *dmpi=vf_get_image(vf->next,mpi->imgfmt,
MP_IMGTYPE_IP, MP_IMGFLAG_ACCEPT_STRIDE,
mpi->w,mpi->h);
if(!dmpi) return 0;
if (!vf->priv->pmpi) vf->priv->pmpi=mpi;
deNoise(mpi->planes[0], vf->priv->pmpi->planes[0], dmpi->planes[0],
vf->priv->Line, W, H,
mpi->stride[0], vf->priv->pmpi->stride[0], dmpi->stride[0],
vf->priv->Coefs[0] + 256,
vf->priv->Coefs[0] + 256,
vf->priv->Coefs[1] + 256);
deNoise(mpi->planes[1], vf->priv->pmpi->planes[1], dmpi->planes[1],
vf->priv->Line, cw, ch,
mpi->stride[1], vf->priv->pmpi->stride[1], dmpi->stride[1],
vf->priv->Coefs[2] + 256,
vf->priv->Coefs[2] + 256,
vf->priv->Coefs[3] + 256);
deNoise(mpi->planes[2], vf->priv->pmpi->planes[2], dmpi->planes[2],
vf->priv->Line, cw, ch,
mpi->stride[2], vf->priv->pmpi->stride[2], dmpi->stride[2],
vf->priv->Coefs[2] + 256,
vf->priv->Coefs[2] + 256,
vf->priv->Coefs[3] + 256);
vf->priv->pmpi=dmpi; // save reference image
return vf_next_put_image(vf,dmpi);
}
//===========================================================================//
static int query_format(struct vf_instance_s* vf, unsigned int fmt){
switch(fmt)
{
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_IYUV:
case IMGFMT_YVU9:
case IMGFMT_444P:
case IMGFMT_422P:
case IMGFMT_411P:
return vf_next_query_format(vf, fmt);
}
return 0;
}
#define ABS(A) ( (A) > 0 ? (A) : -(A) )
static void PrecalcCoefs(int *Ct, double Dist25)
{
int i;
double Gamma, Simil, C;
Gamma = log(0.25) / log(1.0 - Dist25/255.0);
for (i = -256; i <= 255; i++)
{
Simil = 1.0 - ABS(i) / 255.0;
// Ct[256+i] = lround(pow(Simil, Gamma) * (double)i);
C = pow(Simil, Gamma) * (double)i;
Ct[256+i] = (C<0) ? (C-0.5) : (C+0.5);
}
}
static int open(vf_instance_t *vf, char* args){
double LumSpac, LumTmp, ChromSpac, ChromTmp;
double Param1, Param2, Param3;
vf->config=config;
vf->put_image=put_image;
vf->query_format=query_format;
vf->uninit=uninit;
vf->priv=malloc(sizeof(struct vf_priv_s));
memset(vf->priv, 0, sizeof(struct vf_priv_s));
if (args)
{
switch(sscanf(args, "%lf:%lf:%lf",
&Param1, &Param2, &Param3
))
{
case 0:
LumSpac = PARAM1_DEFAULT;
LumTmp = PARAM3_DEFAULT;
ChromSpac = PARAM2_DEFAULT;
ChromTmp = LumTmp * ChromSpac / LumSpac;
break;
case 1:
LumSpac = Param1;
LumTmp = PARAM3_DEFAULT * Param1 / PARAM1_DEFAULT;
ChromSpac = PARAM2_DEFAULT * Param1 / PARAM1_DEFAULT;
ChromTmp = LumTmp * ChromSpac / LumSpac;
break;
case 2:
LumSpac = Param1;
LumTmp = PARAM3_DEFAULT * Param1 / PARAM1_DEFAULT;
ChromSpac = Param2;
ChromTmp = LumTmp * ChromSpac / LumSpac;
break;
case 3:
LumSpac = Param1;
LumTmp = Param3;
ChromSpac = Param2;
ChromTmp = LumTmp * ChromSpac / LumSpac;
break;
default:
LumSpac = PARAM1_DEFAULT;
LumTmp = PARAM3_DEFAULT;
ChromSpac = PARAM2_DEFAULT;
ChromTmp = LumTmp * ChromSpac / LumSpac;
}
}
else
{
LumSpac = PARAM1_DEFAULT;
LumTmp = PARAM3_DEFAULT;
ChromSpac = PARAM2_DEFAULT;
ChromTmp = LumTmp * ChromSpac / LumSpac;
}
PrecalcCoefs(vf->priv->Coefs[0], LumSpac);
PrecalcCoefs(vf->priv->Coefs[1], LumTmp);
PrecalcCoefs(vf->priv->Coefs[2], ChromSpac);
PrecalcCoefs(vf->priv->Coefs[3], ChromTmp);
return 1;
}
vf_info_t vf_info_denoise3d = {
"3D Denoiser (variable lowpass filter)",
"denoise3d",
"Daniel Moreno",
"",
open,
NULL
};
//===========================================================================//
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