mirror of
https://git.videolan.org/git/ffmpeg.git
synced 2024-08-17 14:55:06 +02:00
323 lines
10 KiB
C
323 lines
10 KiB
C
/*
|
|
* Copyright (C) 2007 Michael Niedermayer <michaelni@gmx.at>
|
|
*
|
|
* This file is part of MPlayer.
|
|
*
|
|
* MPlayer 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.
|
|
*
|
|
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
/**
|
|
* @todo try to change to int
|
|
* @todo try lifting based implementation
|
|
* @todo optimize optimize optimize
|
|
* @todo hard tresholding
|
|
* @todo use QP to decide filter strength
|
|
* @todo wavelet normalization / least squares optimal signal vs. noise thresholds
|
|
*/
|
|
|
|
#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"
|
|
|
|
//===========================================================================//
|
|
static const uint8_t __attribute__((aligned(8))) dither[8][8]={
|
|
{ 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, },
|
|
};
|
|
//FIXME the above is duplicated in many filters
|
|
|
|
struct vf_priv_s {
|
|
float strength[2];
|
|
float delta;
|
|
int mode;
|
|
int depth;
|
|
float *plane[16][4];
|
|
int stride;
|
|
};
|
|
|
|
#define S 1.41421356237 //sqrt(2)
|
|
|
|
static const double coeff[2][5]={
|
|
{
|
|
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
|
|
}
|
|
};
|
|
|
|
static const double icoeff[2][5]={
|
|
{
|
|
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
|
|
}
|
|
};
|
|
#undef S
|
|
|
|
static inline int mirror(int x, int w){
|
|
while((unsigned)x > (unsigned)w){
|
|
x=-x;
|
|
if(x<0) x+= 2*w;
|
|
}
|
|
return x;
|
|
}
|
|
|
|
static inline void decompose(float *dstL, float *dstH, float *src, int stride, int w){
|
|
int x, i;
|
|
for(x=0; x<w; x++){
|
|
double sumL= src[x*stride] * coeff[0][0];
|
|
double sumH= src[x*stride] * coeff[1][0];
|
|
for(i=1; i<=4; i++){
|
|
double s= (src[mirror(x-i, w-1)*stride] + src[mirror(x+i, w-1)*stride]);
|
|
|
|
sumL+= coeff[0][i]*s;
|
|
sumH+= coeff[1][i]*s;
|
|
}
|
|
dstL[x*stride]= sumL;
|
|
dstH[x*stride]= sumH;
|
|
}
|
|
}
|
|
|
|
static inline void compose(float *dst, float *srcL, float *srcH, int stride, int w){
|
|
int x, i;
|
|
for(x=0; x<w; x++){
|
|
double sumL= srcL[x*stride] * icoeff[0][0];
|
|
double sumH= srcH[x*stride] * icoeff[1][0];
|
|
for(i=1; i<=4; i++){
|
|
int x0= mirror(x-i, w-1)*stride;
|
|
int x1= mirror(x+i, w-1)*stride;
|
|
|
|
sumL+= icoeff[0][i]*(srcL[x0] + srcL[x1]);
|
|
sumH+= icoeff[1][i]*(srcH[x0] + srcH[x1]);
|
|
}
|
|
dst[x*stride]= (sumL + sumH)*0.5;
|
|
}
|
|
}
|
|
|
|
static inline void decompose2D(float *dstL, float *dstH, float *src, int xstride, int ystride, int step, int w, int h){
|
|
int y, x;
|
|
for(y=0; y<h; y++)
|
|
for(x=0; x<step; x++)
|
|
decompose(dstL + ystride*y + xstride*x, dstH + ystride*y + xstride*x, src + ystride*y + xstride*x, step*xstride, (w-x+step-1)/step);
|
|
}
|
|
|
|
static inline void compose2D(float *dst, float *srcL, float *srcH, int xstride, int ystride, int step, int w, int h){
|
|
int y, x;
|
|
for(y=0; y<h; y++)
|
|
for(x=0; x<step; x++)
|
|
compose(dst + ystride*y + xstride*x, srcL + ystride*y + xstride*x, srcH + ystride*y + xstride*x, step*xstride, (w-x+step-1)/step);
|
|
}
|
|
|
|
static void decompose2D2(float *dst[4], float *src, float *temp[2], int stride, int step, int w, int h){
|
|
decompose2D(temp[0], temp[1], src , 1, stride, step , w, h);
|
|
decompose2D( dst[0], dst[1], temp[0], stride, 1, step , h, w);
|
|
decompose2D( dst[2], dst[3], temp[1], stride, 1, step , h, w);
|
|
}
|
|
|
|
static void compose2D2(float *dst, float *src[4], float *temp[2], int stride, int step, int w, int h){
|
|
compose2D(temp[0], src[0], src[1], stride, 1, step , h, w);
|
|
compose2D(temp[1], src[2], src[3], stride, 1, step , h, w);
|
|
compose2D(dst , temp[0], temp[1], 1, stride, step , w, 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){
|
|
int x,y, i, j;
|
|
// double sum=0;
|
|
double s= p->strength[!is_luma];
|
|
int depth= p->depth;
|
|
|
|
while(1<<depth > width || 1<<depth > height)
|
|
depth--;
|
|
|
|
for(y=0; y<height; y++)
|
|
for(x=0; x<width; x++)
|
|
p->plane[0][0][x + y*p->stride]= src[x + y*src_stride];
|
|
|
|
for(i=0; i<depth; i++){
|
|
decompose2D2(p->plane[i+1], p->plane[i][0], p->plane[0]+1,p->stride, 1<<i, width, height);
|
|
}
|
|
for(i=0; i<depth; i++){
|
|
for(j=1; j<4; j++){
|
|
for(y=0; y<height; y++){
|
|
for(x=0; x<width; x++){
|
|
double v= p->plane[i+1][j][x + y*p->stride];
|
|
if (v> s) v-=s;
|
|
else if(v<-s) v+=s;
|
|
else v =0;
|
|
p->plane[i+1][j][x + y*p->stride]= v;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
for(i=depth-1; i>=0; i--){
|
|
compose2D2(p->plane[i][0], p->plane[i+1], p->plane[0]+1, p->stride, 1<<i, width, height);
|
|
}
|
|
|
|
for(y=0; y<height; y++)
|
|
for(x=0; x<width; x++){
|
|
i= p->plane[0][0][x + y*p->stride] + dither[x&7][y&7]*(1.0/64) + 1.0/128; //yes the rounding is insane but optimal :)
|
|
// double e= i - src[x + y*src_stride];
|
|
// sum += e*e;
|
|
if((unsigned)i > 255U) i= ~(i>>31);
|
|
dst[x + y*dst_stride]= i;
|
|
}
|
|
|
|
// printf("%f\n", sum/height/width);
|
|
}
|
|
|
|
static int config(struct vf_instance *vf, int width, int height, int d_width, int d_height, unsigned int flags, unsigned int outfmt){
|
|
int h= (height+15)&(~15);
|
|
int i,j;
|
|
|
|
vf->priv->stride= (width+15)&(~15);
|
|
for(j=0; j<4; j++){
|
|
for(i=0; i<=vf->priv->depth; i++)
|
|
vf->priv->plane[i][j]= malloc(vf->priv->stride*h*sizeof(vf->priv->plane[0][0][0]));
|
|
}
|
|
|
|
return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
|
|
}
|
|
|
|
static void get_image(struct vf_instance *vf, mp_image_t *mpi){
|
|
if(mpi->flags&MP_IMGFLAG_PRESERVE) return; // don't change
|
|
// ok, we can do pp in-place (or pp disabled):
|
|
vf->dmpi=vf_get_image(vf->next,mpi->imgfmt,
|
|
mpi->type, mpi->flags | MP_IMGFLAG_READABLE, mpi->width, mpi->height);
|
|
mpi->planes[0]=vf->dmpi->planes[0];
|
|
mpi->stride[0]=vf->dmpi->stride[0];
|
|
mpi->width=vf->dmpi->width;
|
|
if(mpi->flags&MP_IMGFLAG_PLANAR){
|
|
mpi->planes[1]=vf->dmpi->planes[1];
|
|
mpi->planes[2]=vf->dmpi->planes[2];
|
|
mpi->stride[1]=vf->dmpi->stride[1];
|
|
mpi->stride[2]=vf->dmpi->stride[2];
|
|
}
|
|
mpi->flags|=MP_IMGFLAG_DIRECT;
|
|
}
|
|
|
|
static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){
|
|
mp_image_t *dmpi;
|
|
|
|
if(!(mpi->flags&MP_IMGFLAG_DIRECT)){
|
|
// no DR, so get a new image! hope we'll get DR buffer:
|
|
dmpi=vf_get_image(vf->next,mpi->imgfmt,
|
|
MP_IMGTYPE_TEMP,
|
|
MP_IMGFLAG_ACCEPT_STRIDE|MP_IMGFLAG_PREFER_ALIGNED_STRIDE,
|
|
mpi->width,mpi->height);
|
|
vf_clone_mpi_attributes(dmpi, mpi);
|
|
}else{
|
|
dmpi=vf->dmpi;
|
|
}
|
|
|
|
filter(vf->priv, dmpi->planes[0], mpi->planes[0], dmpi->stride[0], mpi->stride[0], mpi->w, mpi->h, 1);
|
|
filter(vf->priv, dmpi->planes[1], mpi->planes[1], dmpi->stride[1], mpi->stride[1], mpi->w>>mpi->chroma_x_shift, mpi->h>>mpi->chroma_y_shift, 0);
|
|
filter(vf->priv, dmpi->planes[2], mpi->planes[2], dmpi->stride[2], mpi->stride[2], mpi->w>>mpi->chroma_x_shift, mpi->h>>mpi->chroma_y_shift, 0);
|
|
|
|
return vf_next_put_image(vf,dmpi, pts);
|
|
}
|
|
|
|
static void uninit(struct vf_instance *vf){
|
|
int i,j;
|
|
if(!vf->priv) return;
|
|
|
|
for(j=0; j<4; j++){
|
|
for(i=0; i<16; i++){
|
|
free(vf->priv->plane[i][j]);
|
|
vf->priv->plane[i][j]= NULL;
|
|
}
|
|
}
|
|
|
|
free(vf->priv);
|
|
vf->priv=NULL;
|
|
}
|
|
|
|
//===========================================================================//
|
|
static int query_format(struct vf_instance *vf, unsigned int fmt){
|
|
switch(fmt){
|
|
case IMGFMT_YVU9:
|
|
case IMGFMT_IF09:
|
|
case IMGFMT_YV12:
|
|
case IMGFMT_I420:
|
|
case IMGFMT_IYUV:
|
|
case IMGFMT_CLPL:
|
|
case IMGFMT_Y800:
|
|
case IMGFMT_Y8:
|
|
case IMGFMT_444P:
|
|
case IMGFMT_422P:
|
|
case IMGFMT_411P:
|
|
return vf_next_query_format(vf,fmt);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int vf_open(vf_instance_t *vf, char *args){
|
|
vf->config=config;
|
|
vf->put_image=put_image;
|
|
vf->get_image=get_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));
|
|
|
|
vf->priv->depth= 8;
|
|
vf->priv->strength[0]= 1.0;
|
|
vf->priv->strength[1]= 1.0;
|
|
vf->priv->delta= 1.0;
|
|
|
|
if (args) sscanf(args, "%d:%f:%f:%d:%f", &vf->priv->depth,
|
|
&vf->priv->strength[0],
|
|
&vf->priv->strength[1],
|
|
&vf->priv->mode,
|
|
&vf->priv->delta);
|
|
|
|
return 1;
|
|
}
|
|
|
|
const vf_info_t vf_info_ow = {
|
|
"overcomplete wavelet denoiser",
|
|
"ow",
|
|
"Michael Niedermayer",
|
|
"",
|
|
vf_open,
|
|
NULL
|
|
};
|