| /* |
| * Copyright (C) 2003 Daniel Moreno <comac@comac.darktech.org> |
| * |
| * 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. |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.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" |
| |
| #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 *vf, |
| int width, int height, int d_width, int d_height, |
| unsigned int flags, unsigned int outfmt){ |
| |
| 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 *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 neighbor. Only previous frame */ |
| LineAnt[0] = PixelAnt = Frame[0]; |
| FrameDest[0] = LowPass(FramePrev[0], LineAnt[0], Temporal); |
| |
| /* Fist line has no top neighbor. 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 *vf, mp_image_t *mpi, double pts){ |
| 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 | |
| MP_IMGFLAG_PRESERVE | MP_IMGFLAG_READABLE, |
| 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, pts); |
| } |
| |
| //===========================================================================// |
| |
| static int query_format(struct vf_instance *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 vf_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; |
| } |
| |
| const vf_info_t vf_info_denoise3d = { |
| "3D Denoiser (variable lowpass filter)", |
| "denoise3d", |
| "Daniel Moreno", |
| "", |
| vf_open, |
| NULL |
| }; |
| |
| //===========================================================================// |