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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*16];
unsigned int *Line;
unsigned short *Frame[3];
};
/***************************************************************************/
static void uninit(struct vf_instance_s* vf){
if(vf->priv->Line){free(vf->priv->Line);vf->priv->Line=NULL;}
if(vf->priv->Frame[0]){free(vf->priv->Frame[0]);vf->priv->Frame[0]=NULL;}
if(vf->priv->Frame[1]){free(vf->priv->Frame[1]);vf->priv->Frame[1]=NULL;}
if(vf->priv->Frame[2]){free(vf->priv->Frame[2]);vf->priv->Frame[2]=NULL;}
}
static int config(struct vf_instance_s* vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt){
uninit(vf);
vf->priv->Line = malloc(width*sizeof(int));
return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
}
static inline unsigned int LowPassMul(unsigned int PrevMul, unsigned int CurrMul, int* Coef){
// int dMul= (PrevMul&0xFFFFFF)-(CurrMul&0xFFFFFF);
int dMul= PrevMul-CurrMul;
int d=((dMul+0x10007FF)/(65536/16));
return CurrMul + Coef[d];
}
static void deNoise(unsigned char *Frame, // mpi->planes[x]
unsigned char *FrameDest, // dmpi->planes[x]
unsigned int *LineAnt, // vf->priv->Line (width bytes)
unsigned short **FrameAntPtr,
int W, int H, int sStride, int dStride,
int *Horizontal, int *Vertical, int *Temporal)
{
int X, Y;
int sLineOffs = 0, dLineOffs = 0;
unsigned int PixelAnt;
int PixelDst;
unsigned short* FrameAnt=(*FrameAntPtr);
if(!FrameAnt){
(*FrameAntPtr)=FrameAnt=malloc(W*H*sizeof(unsigned short));
for (Y = 0; Y < H; Y++){
unsigned short* dst=&FrameAnt[Y*W];
unsigned char* src=Frame+Y*sStride;
for (X = 0; X < W; X++) dst[X]=src[X]<<8;
}
}
/* First pixel has no left nor top neightbour. Only previous frame */
LineAnt[0] = PixelAnt = Frame[0]<<16;
PixelDst = LowPassMul(FrameAnt[0]<<8, PixelAnt, Temporal);
FrameAnt[0] = ((PixelDst+0x1000007F)/256);
FrameDest[0]= ((PixelDst+0x10007FFF)/65536);
/* Fist line has no top neightbour. Only left one for each pixel and
* last frame */
for (X = 1; X < W; X++){
LineAnt[X] = PixelAnt = LowPassMul(PixelAnt, Frame[X]<<16, Horizontal);
PixelDst = LowPassMul(FrameAnt[X]<<8, PixelAnt, Temporal);
FrameAnt[X] = ((PixelDst+0x1000007F)/256);
FrameDest[X]= ((PixelDst+0x10007FFF)/65536);
}
for (Y = 1; Y < H; Y++){
unsigned int PixelAnt;
unsigned short* LinePrev=&FrameAnt[Y*W];
sLineOffs += sStride, dLineOffs += dStride;
/* First pixel on each line doesn't have previous pixel */
PixelAnt = Frame[sLineOffs]<<16;
LineAnt[0] = LowPassMul(LineAnt[0], PixelAnt, Vertical);
PixelDst = LowPassMul(LinePrev[0]<<8, LineAnt[0], Temporal);
LinePrev[0] = ((PixelDst+0x1000007F)/256);
FrameDest[dLineOffs]= ((PixelDst+0x10007FFF)/65536);
for (X = 1; X < W; X++){
int PixelDst;
/* The rest are normal */
PixelAnt = LowPassMul(PixelAnt, Frame[sLineOffs+X]<<16, Horizontal);
LineAnt[X] = LowPassMul(LineAnt[X], PixelAnt, Vertical);
PixelDst = LowPassMul(LinePrev[X]<<8, LineAnt[X], Temporal);
LinePrev[X] = ((PixelDst+0x1000007F)/256);
FrameDest[dLineOffs+X]= ((PixelDst+0x10007FFF)/65536);
}
}
}
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_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
mpi->w,mpi->h);
if(!dmpi) return 0;
deNoise(mpi->planes[0], dmpi->planes[0],
vf->priv->Line, &vf->priv->Frame[0], W, H,
mpi->stride[0], dmpi->stride[0],
vf->priv->Coefs[0],
vf->priv->Coefs[0],
vf->priv->Coefs[1]);
deNoise(mpi->planes[1], dmpi->planes[1],
vf->priv->Line, &vf->priv->Frame[1], cw, ch,
mpi->stride[1], dmpi->stride[1],
vf->priv->Coefs[2],
vf->priv->Coefs[2],
vf->priv->Coefs[3]);
deNoise(mpi->planes[2], dmpi->planes[2],
vf->priv->Line, &vf->priv->Frame[2], cw, ch,
mpi->stride[2], dmpi->stride[2],
vf->priv->Coefs[2],
vf->priv->Coefs[2],
vf->priv->Coefs[3]);
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 - 0.00001);
for (i = -256*16; i < 256*16; i++)
{
Simil = 1.0 - ABS(i) / (16*255.0);
C = pow(Simil, Gamma) * 65536.0 * (double)i / 16.0;
Ct[16*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, Param4;
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:%lf",
&Param1, &Param2, &Param3, &Param4
))
{
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;
case 4:
LumSpac = Param1;
LumTmp = Param3;
ChromSpac = Param2;
ChromTmp = Param4;
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_hqdn3d = {
"High Quality 3D Denoiser",
"hqdn3d",
"Daniel Moreno & A'rpi",
"",
open,
NULL
};
//===========================================================================//
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