mirror of
https://github.com/mpv-player/mpv
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02b199e5e9
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@17907 b3059339-0415-0410-9bf9-f77b7e298cf2
274 lines
8.0 KiB
C
274 lines
8.0 KiB
C
/*
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Copyright (C) 2003 Daniel Moreno <comac@comac.darktech.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <inttypes.h>
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#include <math.h>
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#include "config.h"
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#include "mp_msg.h"
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#ifdef HAVE_MALLOC_H
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#include <malloc.h>
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#endif
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#include "img_format.h"
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#include "mp_image.h"
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#include "vf.h"
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#include "libvo/fastmemcpy.h"
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#define PARAM1_DEFAULT 4.0
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#define PARAM2_DEFAULT 3.0
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#define PARAM3_DEFAULT 6.0
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//===========================================================================//
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struct vf_priv_s {
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int Coefs[4][512];
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unsigned char *Line;
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mp_image_t *pmpi;
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};
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/***************************************************************************/
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static int config(struct vf_instance_s* vf,
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int width, int height, int d_width, int d_height,
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unsigned int flags, unsigned int outfmt){
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if(vf->priv->Line) free(vf->priv->Line);
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vf->priv->Line = malloc(width);
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vf->priv->pmpi=NULL;
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// vf->default_caps &= !VFCAP_ACCEPT_STRIDE;
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return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
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}
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static void uninit(struct vf_instance_s* vf)
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{
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free(vf->priv->Line);
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}
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#define LowPass(Prev, Curr, Coef) (Curr + Coef[Prev - Curr])
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static void deNoise(unsigned char *Frame, // mpi->planes[x]
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unsigned char *FramePrev, // pmpi->planes[x]
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unsigned char *FrameDest, // dmpi->planes[x]
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unsigned char *LineAnt, // vf->priv->Line (width bytes)
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int W, int H, int sStride, int pStride, int dStride,
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int *Horizontal, int *Vertical, int *Temporal)
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{
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int X, Y;
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int sLineOffs = 0, pLineOffs = 0, dLineOffs = 0;
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unsigned char PixelAnt;
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/* First pixel has no left nor top neighbor. Only previous frame */
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LineAnt[0] = PixelAnt = Frame[0];
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FrameDest[0] = LowPass(FramePrev[0], LineAnt[0], Temporal);
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/* Fist line has no top neighbor. Only left one for each pixel and
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* last frame */
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for (X = 1; X < W; X++)
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{
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PixelAnt = LowPass(PixelAnt, Frame[X], Horizontal);
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LineAnt[X] = PixelAnt;
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FrameDest[X] = LowPass(FramePrev[X], LineAnt[X], Temporal);
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}
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for (Y = 1; Y < H; Y++)
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{
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sLineOffs += sStride, pLineOffs += pStride, dLineOffs += dStride;
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/* First pixel on each line doesn't have previous pixel */
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PixelAnt = Frame[sLineOffs];
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LineAnt[0] = LowPass(LineAnt[0], PixelAnt, Vertical);
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FrameDest[dLineOffs] = LowPass(FramePrev[pLineOffs], LineAnt[0], Temporal);
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for (X = 1; X < W; X++)
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{
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/* The rest are normal */
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PixelAnt = LowPass(PixelAnt, Frame[sLineOffs+X], Horizontal);
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LineAnt[X] = LowPass(LineAnt[X], PixelAnt, Vertical);
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FrameDest[dLineOffs+X] = LowPass(FramePrev[pLineOffs+X], LineAnt[X], Temporal);
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}
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}
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}
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static int put_image(struct vf_instance_s* vf, mp_image_t *mpi, double pts){
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int cw= mpi->w >> mpi->chroma_x_shift;
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int ch= mpi->h >> mpi->chroma_y_shift;
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int W = mpi->w, H = mpi->h;
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mp_image_t *dmpi=vf_get_image(vf->next,mpi->imgfmt,
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MP_IMGTYPE_IP, MP_IMGFLAG_ACCEPT_STRIDE |
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MP_IMGFLAG_PRESERVE | MP_IMGFLAG_READABLE,
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mpi->w,mpi->h);
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if(!dmpi) return 0;
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if (!vf->priv->pmpi) vf->priv->pmpi=mpi;
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deNoise(mpi->planes[0], vf->priv->pmpi->planes[0], dmpi->planes[0],
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vf->priv->Line, W, H,
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mpi->stride[0], vf->priv->pmpi->stride[0], dmpi->stride[0],
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vf->priv->Coefs[0] + 256,
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vf->priv->Coefs[0] + 256,
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vf->priv->Coefs[1] + 256);
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deNoise(mpi->planes[1], vf->priv->pmpi->planes[1], dmpi->planes[1],
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vf->priv->Line, cw, ch,
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mpi->stride[1], vf->priv->pmpi->stride[1], dmpi->stride[1],
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vf->priv->Coefs[2] + 256,
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vf->priv->Coefs[2] + 256,
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vf->priv->Coefs[3] + 256);
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deNoise(mpi->planes[2], vf->priv->pmpi->planes[2], dmpi->planes[2],
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vf->priv->Line, cw, ch,
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mpi->stride[2], vf->priv->pmpi->stride[2], dmpi->stride[2],
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vf->priv->Coefs[2] + 256,
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vf->priv->Coefs[2] + 256,
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vf->priv->Coefs[3] + 256);
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vf->priv->pmpi=dmpi; // save reference image
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return vf_next_put_image(vf,dmpi, pts);
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}
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//===========================================================================//
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static int query_format(struct vf_instance_s* vf, unsigned int fmt){
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switch(fmt)
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{
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case IMGFMT_YV12:
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case IMGFMT_I420:
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case IMGFMT_IYUV:
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case IMGFMT_YVU9:
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case IMGFMT_444P:
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case IMGFMT_422P:
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case IMGFMT_411P:
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return vf_next_query_format(vf, fmt);
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}
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return 0;
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}
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#define ABS(A) ( (A) > 0 ? (A) : -(A) )
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static void PrecalcCoefs(int *Ct, double Dist25)
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{
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int i;
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double Gamma, Simil, C;
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Gamma = log(0.25) / log(1.0 - Dist25/255.0);
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for (i = -256; i <= 255; i++)
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{
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Simil = 1.0 - ABS(i) / 255.0;
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// Ct[256+i] = lround(pow(Simil, Gamma) * (double)i);
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C = pow(Simil, Gamma) * (double)i;
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Ct[256+i] = (C<0) ? (C-0.5) : (C+0.5);
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}
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}
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static int open(vf_instance_t *vf, char* args){
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double LumSpac, LumTmp, ChromSpac, ChromTmp;
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double Param1, Param2, Param3;
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vf->config=config;
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vf->put_image=put_image;
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vf->query_format=query_format;
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vf->uninit=uninit;
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vf->priv=malloc(sizeof(struct vf_priv_s));
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memset(vf->priv, 0, sizeof(struct vf_priv_s));
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if (args)
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{
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switch(sscanf(args, "%lf:%lf:%lf",
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&Param1, &Param2, &Param3
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))
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{
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case 0:
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LumSpac = PARAM1_DEFAULT;
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LumTmp = PARAM3_DEFAULT;
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ChromSpac = PARAM2_DEFAULT;
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ChromTmp = LumTmp * ChromSpac / LumSpac;
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break;
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case 1:
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LumSpac = Param1;
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LumTmp = PARAM3_DEFAULT * Param1 / PARAM1_DEFAULT;
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ChromSpac = PARAM2_DEFAULT * Param1 / PARAM1_DEFAULT;
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ChromTmp = LumTmp * ChromSpac / LumSpac;
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break;
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case 2:
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LumSpac = Param1;
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LumTmp = PARAM3_DEFAULT * Param1 / PARAM1_DEFAULT;
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ChromSpac = Param2;
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ChromTmp = LumTmp * ChromSpac / LumSpac;
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break;
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case 3:
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LumSpac = Param1;
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LumTmp = Param3;
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ChromSpac = Param2;
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ChromTmp = LumTmp * ChromSpac / LumSpac;
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break;
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default:
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LumSpac = PARAM1_DEFAULT;
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LumTmp = PARAM3_DEFAULT;
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ChromSpac = PARAM2_DEFAULT;
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ChromTmp = LumTmp * ChromSpac / LumSpac;
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}
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}
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else
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{
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LumSpac = PARAM1_DEFAULT;
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LumTmp = PARAM3_DEFAULT;
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ChromSpac = PARAM2_DEFAULT;
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ChromTmp = LumTmp * ChromSpac / LumSpac;
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}
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PrecalcCoefs(vf->priv->Coefs[0], LumSpac);
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PrecalcCoefs(vf->priv->Coefs[1], LumTmp);
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PrecalcCoefs(vf->priv->Coefs[2], ChromSpac);
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PrecalcCoefs(vf->priv->Coefs[3], ChromTmp);
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return 1;
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}
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vf_info_t vf_info_denoise3d = {
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"3D Denoiser (variable lowpass filter)",
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"denoise3d",
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"Daniel Moreno",
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"",
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open,
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NULL
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};
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//===========================================================================//
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