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| 1 | | −/* |
| 2 | | − * Copyright (C) 2002 Michael Niedermayer <michaelni@gmx.at> |
| 3 | | − * |
| 4 | | − * This file is part of MPlayer. |
| 5 | | − * |
| 6 | | − * MPlayer is free software; you can redistribute it and/or modify |
| 7 | | − * it under the terms of the GNU General Public License as published by |
| 8 | | − * the Free Software Foundation; either version 2 of the License, or |
| 9 | | − * (at your option) any later version. |
| 10 | | − * |
| 11 | | − * MPlayer is distributed in the hope that it will be useful, |
| 12 | | − * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | | − * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | | − * GNU General Public License for more details. |
| 15 | | − * |
| 16 | | − * You should have received a copy of the GNU General Public License along |
| 17 | | − * with MPlayer; if not, write to the Free Software Foundation, Inc., |
| 18 | | − * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 19 | | − */ |
| 20 | | − |
| 21 | | −#include <stdio.h> |
| 22 | | −#include <stdlib.h> |
| 23 | | −#include <string.h> |
| 24 | | −#include <inttypes.h> |
| 25 | | −#include <assert.h> |
| 26 | | − |
| 27 | | −#include "mp_msg.h" |
| 28 | | −#include "img_format.h" |
| 29 | | −#include "mp_image.h" |
| 30 | | −#include "vf.h" |
| 31 | | − |
| 32 | | − |
| 33 | | −//===========================================================================// |
| 34 | | − |
| 35 | | −typedef struct FilterParam{ |
| 36 | | − int radius; |
| 37 | | − int power; |
| 38 | | −}FilterParam; |
| 39 | | − |
| 40 | | −struct vf_priv_s { |
| 41 | | − FilterParam lumaParam; |
| 42 | | − FilterParam chromaParam; |
| 43 | | −}; |
| 44 | | − |
| 45 | | − |
| 46 | | −/***************************************************************************/ |
| 47 | | − |
| 48 | | − |
| 49 | | −static int config(struct vf_instance *vf, |
| 50 | | − int width, int height, int d_width, int d_height, |
| 51 | | − unsigned int flags, unsigned int outfmt){ |
| 52 | | − |
| 53 | | − return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt); |
| 54 | | −} |
| 55 | | − |
| 56 | | −static inline void blur(uint8_t *dst, uint8_t *src, int w, int radius, int dstStep, int srcStep){ |
| 57 | | − int x; |
| 58 | | − const int length= radius*2 + 1; |
| 59 | | − const int inv= ((1<<16) + length/2)/length; |
| 60 | | − |
| 61 | | − int sum= 0; |
| 62 | | − |
| 63 | | − for(x=0; x<radius; x++){ |
| 64 | | − sum+= src[x*srcStep]<<1; |
| 65 | | − } |
| 66 | | − sum+= src[radius*srcStep]; |
| 67 | | − |
| 68 | | − for(x=0; x<=radius; x++){ |
| 69 | | − sum+= src[(radius+x)*srcStep] - src[(radius-x)*srcStep]; |
| 70 | | − dst[x*dstStep]= (sum*inv + (1<<15))>>16; |
| 71 | | − } |
| 72 | | − |
| 73 | | − for(; x<w-radius; x++){ |
| 74 | | − sum+= src[(radius+x)*srcStep] - src[(x-radius-1)*srcStep]; |
| 75 | | − dst[x*dstStep]= (sum*inv + (1<<15))>>16; |
| 76 | | − } |
| 77 | | − |
| 78 | | − for(; x<w; x++){ |
| 79 | | − sum+= src[(2*w-radius-x-1)*srcStep] - src[(x-radius-1)*srcStep]; |
| 80 | | − dst[x*dstStep]= (sum*inv + (1<<15))>>16; |
| 81 | | − } |
| 82 | | −} |
| 83 | | − |
| 84 | | −static inline void blur2(uint8_t *dst, uint8_t *src, int w, int radius, int power, int dstStep, int srcStep){ |
| 85 | | − uint8_t temp[2][4096]; |
| 86 | | − uint8_t *a= temp[0], *b=temp[1]; |
| 87 | | − |
| 88 | | − if(radius){ |
| 89 | | − blur(a, src, w, radius, 1, srcStep); |
| 90 | | − for(; power>2; power--){ |
| 91 | | − uint8_t *c; |
| 92 | | − blur(b, a, w, radius, 1, 1); |
| 93 | | − c=a; a=b; b=c; |
| 94 | | − } |
| 95 | | − if(power>1) |
| 96 | | − blur(dst, a, w, radius, dstStep, 1); |
| 97 | | − else{ |
| 98 | | − int i; |
| 99 | | − for(i=0; i<w; i++) |
| 100 | | − dst[i*dstStep]= a[i]; |
| 101 | | − } |
| 102 | | − }else{ |
| 103 | | − int i; |
| 104 | | − for(i=0; i<w; i++) |
| 105 | | − dst[i*dstStep]= src[i*srcStep]; |
| 106 | | − } |
| 107 | | −} |
| 108 | | − |
| 109 | | −static void hBlur(uint8_t *dst, uint8_t *src, int w, int h, int dstStride, int srcStride, int radius, int power){ |
| 110 | | − int y; |
| 111 | | − |
| 112 | | − if(radius==0 && dst==src) return; |
| 113 | | − |
| 114 | | − for(y=0; y<h; y++){ |
| 115 | | − blur2(dst + y*dstStride, src + y*srcStride, w, radius, power, 1, 1); |
| 116 | | − } |
| 117 | | −} |
| 118 | | − |
| 119 | | −//FIXME optimize (x before y !!!) |
| 120 | | −static void vBlur(uint8_t *dst, uint8_t *src, int w, int h, int dstStride, int srcStride, int radius, int power){ |
| 121 | | − int x; |
| 122 | | − |
| 123 | | − if(radius==0 && dst==src) return; |
| 124 | | − |
| 125 | | − for(x=0; x<w; x++){ |
| 126 | | − blur2(dst + x, src + x, h, radius, power, dstStride, srcStride); |
| 127 | | − } |
| 128 | | −} |
| 129 | | − |
| 130 | | −static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){ |
| 131 | | − int cw= mpi->w >> mpi->chroma_x_shift; |
| 132 | | − int ch= mpi->h >> mpi->chroma_y_shift; |
| 133 | | − |
| 134 | | − mp_image_t *dmpi=vf_get_image(vf->next,mpi->imgfmt, |
| 135 | | − MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_READABLE, |
| 136 | | − mpi->w,mpi->h); |
| 137 | | − |
| 138 | | − assert(mpi->flags&MP_IMGFLAG_PLANAR); |
| 139 | | − |
| 140 | | − hBlur(dmpi->planes[0], mpi->planes[0], mpi->w,mpi->h, |
| 141 | | − dmpi->stride[0], mpi->stride[0], vf->priv->lumaParam.radius, vf->priv->lumaParam.power); |
| 142 | | − hBlur(dmpi->planes[1], mpi->planes[1], cw,ch, |
| 143 | | − dmpi->stride[1], mpi->stride[1], vf->priv->chromaParam.radius, vf->priv->chromaParam.power); |
| 144 | | − hBlur(dmpi->planes[2], mpi->planes[2], cw,ch, |
| 145 | | − dmpi->stride[2], mpi->stride[2], vf->priv->chromaParam.radius, vf->priv->chromaParam.power); |
| 146 | | − |
| 147 | | − vBlur(dmpi->planes[0], dmpi->planes[0], mpi->w,mpi->h, |
| 148 | | − dmpi->stride[0], dmpi->stride[0], vf->priv->lumaParam.radius, vf->priv->lumaParam.power); |
| 149 | | − vBlur(dmpi->planes[1], dmpi->planes[1], cw,ch, |
| 150 | | − dmpi->stride[1], dmpi->stride[1], vf->priv->chromaParam.radius, vf->priv->chromaParam.power); |
| 151 | | − vBlur(dmpi->planes[2], dmpi->planes[2], cw,ch, |
| 152 | | − dmpi->stride[2], dmpi->stride[2], vf->priv->chromaParam.radius, vf->priv->chromaParam.power); |
| 153 | | − |
| 154 | | − return vf_next_put_image(vf,dmpi, pts); |
| 155 | | −} |
| 156 | | − |
| 157 | | −//===========================================================================// |
| 158 | | − |
| 159 | | −static int query_format(struct vf_instance *vf, unsigned int fmt){ |
| 160 | | − switch(fmt) |
| 161 | | − { |
| 162 | | − case IMGFMT_YV12: |
| 163 | | − case IMGFMT_I420: |
| 164 | | − case IMGFMT_IYUV: |
| 165 | | − case IMGFMT_YVU9: |
| 166 | | − case IMGFMT_444P: |
| 167 | | − case IMGFMT_422P: |
| 168 | | − case IMGFMT_411P: |
| 169 | | − return vf_next_query_format(vf, fmt); |
| 170 | | − } |
| 171 | | − return 0; |
| 172 | | −} |
| 173 | | − |
| 174 | | −static int vf_open(vf_instance_t *vf, char *args){ |
| 175 | | − int e; |
| 176 | | − |
| 177 | | − vf->config=config; |
| 178 | | − vf->put_image=put_image; |
| 179 | | −// vf->get_image=get_image; |
| 180 | | − vf->query_format=query_format; |
| 181 | | − vf->priv=malloc(sizeof(struct vf_priv_s)); |
| 182 | | − memset(vf->priv, 0, sizeof(struct vf_priv_s)); |
| 183 | | − |
| 184 | | − if(args==NULL) return 0; |
| 185 | | − |
| 186 | | − e=sscanf(args, "%d:%d:%d:%d", |
| 187 | | − &vf->priv->lumaParam.radius, |
| 188 | | − &vf->priv->lumaParam.power, |
| 189 | | − &vf->priv->chromaParam.radius, |
| 190 | | − &vf->priv->chromaParam.power |
| 191 | | − ); |
| 192 | | − |
| 193 | | − if(e==2){ |
| 194 | | − vf->priv->chromaParam.radius= vf->priv->lumaParam.radius; |
| 195 | | − vf->priv->chromaParam.power = vf->priv->lumaParam.power; |
| 196 | | − }else if(e!=4) |
| 197 | | − return 0; |
| 198 | | − |
| 199 | | − if(vf->priv->lumaParam.radius < 0) return 0; |
| 200 | | − if(vf->priv->chromaParam.radius < 0) return 0; |
| 201 | | − |
| 202 | | − return 1; |
| 203 | | −} |
| 204 | | − |
| 205 | | −const vf_info_t vf_info_boxblur = { |
| 206 | | − "box blur", |
| 207 | | − "boxblur", |
| 208 | | − "Michael Niedermayer", |
| 209 | | − "", |
| 210 | | − vf_open, |
| 211 | | − NULL |
| 212 | | −}; |
| 213 | | − |
| 214 | | −//===========================================================================// |