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Revision 1160 - (view) (download)
| 1 : | edgomez | 1142 | /***************************************************************************** |
| 2 : | chl | 1077 | * |
| 3 : | edgomez | 1142 | * XVID MPEG-4 VIDEO CODEC |
| 4 : | * - GMC interpolation module - | ||
| 5 : | chl | 1077 | * |
| 6 : | edgomez | 1142 | * Copyright(C) 2002-2003 Pascal Massimino <skal@planet-d.net> |
| 7 : | chl | 1077 | * |
| 8 : | edgomez | 1142 | * This program is free software ; you can redistribute it and/or modify |
| 9 : | * it under the terms of the GNU General Public License as published by | ||
| 10 : | * the Free Software Foundation ; either version 2 of the License, or | ||
| 11 : | * (at your option) any later version. | ||
| 12 : | chl | 1077 | * |
| 13 : | edgomez | 1142 | * This program is distributed in the hope that it will be useful, |
| 14 : | * but WITHOUT ANY WARRANTY ; without even the implied warranty of | ||
| 15 : | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 16 : | * GNU General Public License for more details. | ||
| 17 : | chl | 1077 | * |
| 18 : | edgomez | 1142 | * You should have received a copy of the GNU General Public License |
| 19 : | * along with this program ; if not, write to the Free Software | ||
| 20 : | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| 21 : | * | ||
| 22 : | edgomez | 1160 | * $Id: gmc.c,v 1.1.2.5 2003-09-30 18:20:31 edgomez Exp $ |
| 23 : | edgomez | 1142 | * |
| 24 : | ****************************************************************************/ | ||
| 25 : | chl | 1077 | |
| 26 : | #include "../portab.h" | ||
| 27 : | #include "../global.h" | ||
| 28 : | #include "../encoder.h" | ||
| 29 : | #include "gmc.h" | ||
| 30 : | |||
| 31 : | #include <stdio.h> | ||
| 32 : | |||
| 33 : | edgomez | 1160 | /* ************************************************************ |
| 34 : | * Pts = 2 or 3 | ||
| 35 : | * | ||
| 36 : | * Warning! *src is the global frame pointer (that is: adress | ||
| 37 : | * of pixel 0,0), not the macroblock one. | ||
| 38 : | * Conversely, *dst is the macroblock top-left adress. | ||
| 39 : | */ | ||
| 40 : | chl | 1077 | |
| 41 : | void Predict_16x16_C(const NEW_GMC_DATA * const This, | ||
| 42 : | syskin | 1085 | uint8_t *dst, const uint8_t *src, |
| 43 : | int dststride, int srcstride, int x, int y, int rounding) | ||
| 44 : | chl | 1077 | { |
| 45 : | syskin | 1085 | const int W = This->sW; |
| 46 : | const int H = This->sH; | ||
| 47 : | const int rho = 3 - This->accuracy; | ||
| 48 : | const int Rounder = ( (1<<7) - (rounding<<(2*rho)) ) << 16; | ||
| 49 : | chl | 1077 | |
| 50 : | syskin | 1085 | const int dUx = This->dU[0]; |
| 51 : | const int dVx = This->dV[0]; | ||
| 52 : | const int dUy = This->dU[1]; | ||
| 53 : | const int dVy = This->dV[1]; | ||
| 54 : | chl | 1077 | |
| 55 : | syskin | 1085 | int Uo = This->Uo + 16*(dUy*y + dUx*x); |
| 56 : | int Vo = This->Vo + 16*(dVy*y + dVx*x); | ||
| 57 : | chl | 1077 | |
| 58 : | syskin | 1085 | int i, j; |
| 59 : | chl | 1077 | |
| 60 : | syskin | 1085 | dst += 16; |
| 61 : | syskin | 1117 | for (j=16; j>0; --j) { |
| 62 : | int U = Uo, V = Vo; | ||
| 63 : | Uo += dUy; Vo += dVy; | ||
| 64 : | for (i=-16; i<0; ++i) { | ||
| 65 : | unsigned int f0, f1, ri = 16, rj = 16; | ||
| 66 : | int Offset; | ||
| 67 : | int u = ( U >> 16 ) << rho; | ||
| 68 : | int v = ( V >> 16 ) << rho; | ||
| 69 : | chl | 1077 | |
| 70 : | syskin | 1117 | U += dUx; V += dVx; |
| 71 : | chl | 1077 | |
| 72 : | syskin | 1117 | if (u > 0 && u <= W) { ri = MTab[u&15]; Offset = u>>4; } |
| 73 : | else if (u > W) Offset = W>>4; | ||
| 74 : | else Offset = -1; | ||
| 75 : | |||
| 76 : | if (v > 0 && v <= H) { rj = MTab[v&15]; Offset += (v>>4)*srcstride; } | ||
| 77 : | else if (v > H) Offset += (H>>4)*srcstride; | ||
| 78 : | else Offset -= srcstride; | ||
| 79 : | chl | 1077 | |
| 80 : | syskin | 1117 | f0 = src[Offset + 0]; |
| 81 : | f0 |= src[Offset + 1] << 16; | ||
| 82 : | f1 = src[Offset + srcstride + 0]; | ||
| 83 : | f1 |= src[Offset + srcstride + 1] << 16; | ||
| 84 : | f0 = (ri*f0)>>16; | ||
| 85 : | f1 = (ri*f1) & 0x0fff0000; | ||
| 86 : | f0 |= f1; | ||
| 87 : | f0 = (rj*f0 + Rounder) >> 24; | ||
| 88 : | chl | 1077 | |
| 89 : | syskin | 1117 | dst[i] = (uint8_t)f0; |
| 90 : | } | ||
| 91 : | dst += dststride; | ||
| 92 : | syskin | 1085 | } |
| 93 : | chl | 1077 | } |
| 94 : | |||
| 95 : | void Predict_8x8_C(const NEW_GMC_DATA * const This, | ||
| 96 : | syskin | 1085 | uint8_t *uDst, const uint8_t *uSrc, |
| 97 : | uint8_t *vDst, const uint8_t *vSrc, | ||
| 98 : | int dststride, int srcstride, int x, int y, int rounding) | ||
| 99 : | chl | 1077 | { |
| 100 : | syskin | 1085 | const int W = This->sW >> 1; |
| 101 : | const int H = This->sH >> 1; | ||
| 102 : | const int rho = 3-This->accuracy; | ||
| 103 : | const int32_t Rounder = ( 128 - (rounding<<(2*rho)) ) << 16; | ||
| 104 : | chl | 1077 | |
| 105 : | syskin | 1085 | const int32_t dUx = This->dU[0]; |
| 106 : | const int32_t dVx = This->dV[0]; | ||
| 107 : | const int32_t dUy = This->dU[1]; | ||
| 108 : | const int32_t dVy = This->dV[1]; | ||
| 109 : | chl | 1077 | |
| 110 : | syskin | 1085 | int32_t Uo = This->Uco + 8*(dUy*y + dUx*x); |
| 111 : | int32_t Vo = This->Vco + 8*(dVy*y + dVx*x); | ||
| 112 : | chl | 1077 | |
| 113 : | syskin | 1085 | int i, j; |
| 114 : | chl | 1077 | |
| 115 : | syskin | 1085 | uDst += 8; |
| 116 : | vDst += 8; | ||
| 117 : | syskin | 1117 | for (j=8; j>0; --j) { |
| 118 : | int32_t U = Uo, V = Vo; | ||
| 119 : | Uo += dUy; Vo += dVy; | ||
| 120 : | chl | 1077 | |
| 121 : | syskin | 1117 | for (i=-8; i<0; ++i) { |
| 122 : | int Offset; | ||
| 123 : | uint32_t f0, f1, ri, rj; | ||
| 124 : | int32_t u, v; | ||
| 125 : | chl | 1077 | |
| 126 : | syskin | 1117 | u = ( U >> 16 ) << rho; |
| 127 : | v = ( V >> 16 ) << rho; | ||
| 128 : | U += dUx; V += dVx; | ||
| 129 : | chl | 1077 | |
| 130 : | syskin | 1117 | if (u > 0 && u <= W) { |
| 131 : | ri = MTab[u&15]; | ||
| 132 : | Offset = u>>4; | ||
| 133 : | } else { | ||
| 134 : | ri = 16; | ||
| 135 : | if (u>W) Offset = W>>4; | ||
| 136 : | else Offset = -1; | ||
| 137 : | } | ||
| 138 : | |||
| 139 : | if (v > 0 && v <= H) { | ||
| 140 : | rj = MTab[v&15]; | ||
| 141 : | Offset += (v>>4)*srcstride; | ||
| 142 : | } else { | ||
| 143 : | rj = 16; | ||
| 144 : | if (v>H) Offset += (H>>4)*srcstride; | ||
| 145 : | else Offset -= srcstride; | ||
| 146 : | } | ||
| 147 : | chl | 1077 | |
| 148 : | syskin | 1117 | f0 = uSrc[Offset + 0]; |
| 149 : | f0 |= uSrc[Offset + 1] << 16; | ||
| 150 : | f1 = uSrc[Offset + srcstride + 0]; | ||
| 151 : | f1 |= uSrc[Offset + srcstride + 1] << 16; | ||
| 152 : | f0 = (ri*f0)>>16; | ||
| 153 : | f1 = (ri*f1) & 0x0fff0000; | ||
| 154 : | f0 |= f1; | ||
| 155 : | f0 = (rj*f0 + Rounder) >> 24; | ||
| 156 : | chl | 1077 | |
| 157 : | syskin | 1117 | uDst[i] = (uint8_t)f0; |
| 158 : | chl | 1077 | |
| 159 : | syskin | 1117 | f0 = vSrc[Offset + 0]; |
| 160 : | f0 |= vSrc[Offset + 1] << 16; | ||
| 161 : | f1 = vSrc[Offset + srcstride + 0]; | ||
| 162 : | f1 |= vSrc[Offset + srcstride + 1] << 16; | ||
| 163 : | f0 = (ri*f0)>>16; | ||
| 164 : | f1 = (ri*f1) & 0x0fff0000; | ||
| 165 : | f0 |= f1; | ||
| 166 : | f0 = (rj*f0 + Rounder) >> 24; | ||
| 167 : | chl | 1077 | |
| 168 : | syskin | 1117 | vDst[i] = (uint8_t)f0; |
| 169 : | } | ||
| 170 : | uDst += dststride; | ||
| 171 : | vDst += dststride; | ||
| 172 : | syskin | 1085 | } |
| 173 : | chl | 1077 | } |
| 174 : | |||
| 175 : | syskin | 1085 | void get_average_mv_C(const NEW_GMC_DATA * const Dsp, VECTOR * const mv, |
| 176 : | int x, int y, int qpel) | ||
| 177 : | chl | 1077 | { |
| 178 : | syskin | 1085 | int i, j; |
| 179 : | int vx = 0, vy = 0; | ||
| 180 : | int32_t uo = Dsp->Uo + 16*(Dsp->dU[1]*y + Dsp->dU[0]*x); | ||
| 181 : | int32_t vo = Dsp->Vo + 16*(Dsp->dV[1]*y + Dsp->dV[0]*x); | ||
| 182 : | for (j=16; j>0; --j) | ||
| 183 : | { | ||
| 184 : | int32_t U, V; | ||
| 185 : | U = uo; uo += Dsp->dU[1]; | ||
| 186 : | V = vo; vo += Dsp->dV[1]; | ||
| 187 : | for (i=16; i>0; --i) | ||
| 188 : | { | ||
| 189 : | int32_t u,v; | ||
| 190 : | u = U >> 16; U += Dsp->dU[0]; vx += u; | ||
| 191 : | v = V >> 16; V += Dsp->dV[0]; vy += v; | ||
| 192 : | } | ||
| 193 : | } | ||
| 194 : | edgomez | 1160 | vx -= (256*x+120) << (5+Dsp->accuracy); /* 120 = 15*16/2 */ |
| 195 : | syskin | 1085 | vy -= (256*y+120) << (5+Dsp->accuracy); |
| 196 : | chl | 1077 | |
| 197 : | syskin | 1085 | mv->x = RSHIFT( vx, 8+Dsp->accuracy - qpel ); |
| 198 : | mv->y = RSHIFT( vy, 8+Dsp->accuracy - qpel ); | ||
| 199 : | chl | 1077 | } |
| 200 : | |||
| 201 : | edgomez | 1160 | /* ************************************************************ |
| 202 : | * simplified version for 1 warp point | ||
| 203 : | */ | ||
| 204 : | chl | 1077 | |
| 205 : | void Predict_1pt_16x16_C(const NEW_GMC_DATA * const This, | ||
| 206 : | syskin | 1085 | uint8_t *Dst, const uint8_t *Src, |
| 207 : | int dststride, int srcstride, int x, int y, int rounding) | ||
| 208 : | chl | 1077 | { |
| 209 : | syskin | 1085 | const int W = This->sW; |
| 210 : | const int H = This->sH; | ||
| 211 : | const int rho = 3-This->accuracy; | ||
| 212 : | const int32_t Rounder = ( 128 - (rounding<<(2*rho)) ) << 16; | ||
| 213 : | chl | 1077 | |
| 214 : | |||
| 215 : | edgomez | 1160 | int32_t uo = This->Uo + (x<<8); /* ((16*x)<<4) */ |
| 216 : | syskin | 1085 | int32_t vo = This->Vo + (y<<8); |
| 217 : | const uint32_t ri = MTab[uo & 15]; | ||
| 218 : | const uint32_t rj = MTab[vo & 15]; | ||
| 219 : | int i, j; | ||
| 220 : | chl | 1077 | |
| 221 : | syskin | 1085 | int32_t Offset; |
| 222 : | if ((uint32_t)vo<=(uint32_t)H) Offset = (vo>>4)*srcstride; | ||
| 223 : | else if (vo>H) Offset = ( H>>4)*srcstride; | ||
| 224 : | else Offset =-16*srcstride; | ||
| 225 : | if ((uint32_t)uo<=(uint32_t)W) Offset += (uo>>4); | ||
| 226 : | else if (uo>W) Offset += ( W>>4); | ||
| 227 : | else Offset -= 16; | ||
| 228 : | chl | 1077 | |
| 229 : | syskin | 1085 | Dst += 16; |
| 230 : | chl | 1077 | |
| 231 : | syskin | 1085 | for(j=16; j>0; --j, Offset+=srcstride-16) |
| 232 : | { | ||
| 233 : | for(i=-16; i<0; ++i, ++Offset) | ||
| 234 : | { | ||
| 235 : | uint32_t f0, f1; | ||
| 236 : | f0 = Src[ Offset +0 ]; | ||
| 237 : | f0 |= Src[ Offset +1 ] << 16; | ||
| 238 : | f1 = Src[ Offset+srcstride +0 ]; | ||
| 239 : | f1 |= Src[ Offset+srcstride +1 ] << 16; | ||
| 240 : | f0 = (ri*f0)>>16; | ||
| 241 : | f1 = (ri*f1) & 0x0fff0000; | ||
| 242 : | f0 |= f1; | ||
| 243 : | f0 = ( rj*f0 + Rounder ) >> 24; | ||
| 244 : | Dst[i] = (uint8_t)f0; | ||
| 245 : | } | ||
| 246 : | Dst += dststride; | ||
| 247 : | } | ||
| 248 : | } | ||
| 249 : | chl | 1077 | |
| 250 : | void Predict_1pt_8x8_C(const NEW_GMC_DATA * const This, | ||
| 251 : | syskin | 1085 | uint8_t *uDst, const uint8_t *uSrc, |
| 252 : | uint8_t *vDst, const uint8_t *vSrc, | ||
| 253 : | int dststride, int srcstride, int x, int y, int rounding) | ||
| 254 : | chl | 1077 | { |
| 255 : | syskin | 1085 | const int W = This->sW >> 1; |
| 256 : | const int H = This->sH >> 1; | ||
| 257 : | const int rho = 3-This->accuracy; | ||
| 258 : | const int32_t Rounder = ( 128 - (rounding<<(2*rho)) ) << 16; | ||
| 259 : | chl | 1077 | |
| 260 : | syskin | 1085 | int32_t uo = This->Uco + (x<<7); |
| 261 : | int32_t vo = This->Vco + (y<<7); | ||
| 262 : | const uint32_t rri = MTab[uo & 15]; | ||
| 263 : | const uint32_t rrj = MTab[vo & 15]; | ||
| 264 : | int i, j; | ||
| 265 : | chl | 1077 | |
| 266 : | syskin | 1085 | int32_t Offset; |
| 267 : | if ((uint32_t)vo<=(uint32_t)H) Offset = (vo>>4)*srcstride; | ||
| 268 : | else if (vo>H) Offset = ( H>>4)*srcstride; | ||
| 269 : | else Offset =-8*srcstride; | ||
| 270 : | if ((uint32_t)uo<=(uint32_t)W) Offset += (uo>>4); | ||
| 271 : | else if (uo>W) Offset += (W>>4); | ||
| 272 : | else Offset -= 8; | ||
| 273 : | chl | 1077 | |
| 274 : | syskin | 1085 | uDst += 8; |
| 275 : | vDst += 8; | ||
| 276 : | for(j=8; j>0; --j, Offset+=srcstride-8) | ||
| 277 : | { | ||
| 278 : | for(i=-8; i<0; ++i, Offset++) | ||
| 279 : | { | ||
| 280 : | uint32_t f0, f1; | ||
| 281 : | f0 = uSrc[ Offset + 0 ]; | ||
| 282 : | f0 |= uSrc[ Offset + 1 ] << 16; | ||
| 283 : | f1 = uSrc[ Offset + srcstride + 0 ]; | ||
| 284 : | f1 |= uSrc[ Offset + srcstride + 1 ] << 16; | ||
| 285 : | f0 = (rri*f0)>>16; | ||
| 286 : | f1 = (rri*f1) & 0x0fff0000; | ||
| 287 : | f0 |= f1; | ||
| 288 : | f0 = ( rrj*f0 + Rounder ) >> 24; | ||
| 289 : | uDst[i] = (uint8_t)f0; | ||
| 290 : | chl | 1077 | |
| 291 : | syskin | 1085 | f0 = vSrc[ Offset + 0 ]; |
| 292 : | f0 |= vSrc[ Offset + 1 ] << 16; | ||
| 293 : | f1 = vSrc[ Offset + srcstride + 0 ]; | ||
| 294 : | f1 |= vSrc[ Offset + srcstride + 1 ] << 16; | ||
| 295 : | f0 = (rri*f0)>>16; | ||
| 296 : | f1 = (rri*f1) & 0x0fff0000; | ||
| 297 : | f0 |= f1; | ||
| 298 : | f0 = ( rrj*f0 + Rounder ) >> 24; | ||
| 299 : | vDst[i] = (uint8_t)f0; | ||
| 300 : | } | ||
| 301 : | uDst += dststride; | ||
| 302 : | vDst += dststride; | ||
| 303 : | } | ||
| 304 : | chl | 1077 | } |
| 305 : | |||
| 306 : | syskin | 1085 | void get_average_mv_1pt_C(const NEW_GMC_DATA * const Dsp, VECTOR * const mv, |
| 307 : | int x, int y, int qpel) | ||
| 308 : | chl | 1077 | { |
| 309 : | syskin | 1085 | mv->x = RSHIFT(Dsp->Uo<<qpel, 3); |
| 310 : | mv->y = RSHIFT(Dsp->Vo<<qpel, 3); | ||
| 311 : | chl | 1077 | } |
| 312 : | |||
| 313 : | edgomez | 1160 | /* ************************************************************* |
| 314 : | * Warning! It's Accuracy being passed, not 'resolution'! | ||
| 315 : | */ | ||
| 316 : | chl | 1077 | |
| 317 : | void generate_GMCparameters( int nb_pts, const int accuracy, | ||
| 318 : | syskin | 1085 | const WARPPOINTS *const pts, |
| 319 : | const int width, const int height, | ||
| 320 : | NEW_GMC_DATA *const gmc) | ||
| 321 : | chl | 1077 | { |
| 322 : | syskin | 1085 | gmc->sW = width << 4; |
| 323 : | gmc->sH = height << 4; | ||
| 324 : | gmc->accuracy = accuracy; | ||
| 325 : | gmc->num_wp = nb_pts; | ||
| 326 : | chl | 1077 | |
| 327 : | edgomez | 1160 | /* reduce the number of points, if possible */ |
| 328 : | syskin | 1085 | if (nb_pts<3 || (pts->duv[2].x==-pts->duv[1].y && pts->duv[2].y==pts->duv[1].x)) { |
| 329 : | if (nb_pts<2 || (pts->duv[1].x==0 && pts->duv[1].y==0)) { | ||
| 330 : | if (nb_pts<1 || (pts->duv[0].x==0 && pts->duv[0].y==0)) { | ||
| 331 : | nb_pts = 0; | ||
| 332 : | } | ||
| 333 : | else nb_pts = 1; | ||
| 334 : | } | ||
| 335 : | else nb_pts = 2; | ||
| 336 : | } | ||
| 337 : | else nb_pts = 3; | ||
| 338 : | |||
| 339 : | edgomez | 1160 | /* now, nb_pts stores the actual number of points required for interpolation */ |
| 340 : | chl | 1077 | |
| 341 : | syskin | 1085 | if (nb_pts<=1) |
| 342 : | { | ||
| 343 : | if (nb_pts==1) { | ||
| 344 : | edgomez | 1160 | /* store as 4b fixed point */ |
| 345 : | syskin | 1085 | gmc->Uo = pts->duv[0].x << accuracy; |
| 346 : | gmc->Vo = pts->duv[0].y << accuracy; | ||
| 347 : | edgomez | 1160 | gmc->Uco = ((pts->duv[0].x>>1) | (pts->duv[0].x&1)) << accuracy; /* DIV2RND() */ |
| 348 : | gmc->Vco = ((pts->duv[0].y>>1) | (pts->duv[0].y&1)) << accuracy; /* DIV2RND() */ | ||
| 349 : | syskin | 1085 | } |
| 350 : | edgomez | 1160 | else { /* zero points?! */ |
| 351 : | syskin | 1085 | gmc->Uo = gmc->Vo = 0; |
| 352 : | gmc->Uco = gmc->Vco = 0; | ||
| 353 : | } | ||
| 354 : | chl | 1077 | |
| 355 : | syskin | 1085 | gmc->predict_16x16 = Predict_1pt_16x16_C; |
| 356 : | gmc->predict_8x8 = Predict_1pt_8x8_C; | ||
| 357 : | gmc->get_average_mv = get_average_mv_1pt_C; | ||
| 358 : | } | ||
| 359 : | edgomez | 1160 | else { /* 2 or 3 points */ |
| 360 : | const int rho = 3 - accuracy; /* = {3,2,1,0} for Acc={0,1,2,3} */ | ||
| 361 : | syskin | 1085 | int Alpha = log2bin(width-1); |
| 362 : | int Ws = 1 << Alpha; | ||
| 363 : | chl | 1077 | |
| 364 : | edgomez | 1160 | gmc->dU[0] = 16*Ws + RDIV( 8*Ws*pts->duv[1].x, width ); /* dU/dx */ |
| 365 : | gmc->dV[0] = RDIV( 8*Ws*pts->duv[1].y, width ); /* dV/dx */ | ||
| 366 : | chl | 1077 | |
| 367 : | syskin | 1085 | /* disabled, because possibly buggy? */ |
| 368 : | chl | 1077 | |
| 369 : | edgomez | 1160 | #if 0 |
| 370 : | if (nb_pts==2) { | ||
| 371 : | gmc->dU[1] = -gmc->dV[0]; /* -Sin */ | ||
| 372 : | gmc->dV[1] = gmc->dU[0] ; /* Cos */ | ||
| 373 : | syskin | 1085 | } |
| 374 : | edgomez | 1160 | else |
| 375 : | #endif | ||
| 376 : | chl | 1077 | { |
| 377 : | syskin | 1085 | const int Beta = log2bin(height-1); |
| 378 : | const int Hs = 1<<Beta; | ||
| 379 : | edgomez | 1160 | gmc->dU[1] = RDIV( 8*Hs*pts->duv[2].x, height ); /* dU/dy */ |
| 380 : | gmc->dV[1] = 16*Hs + RDIV( 8*Hs*pts->duv[2].y, height ); /* dV/dy */ | ||
| 381 : | syskin | 1085 | if (Beta>Alpha) { |
| 382 : | gmc->dU[0] <<= (Beta-Alpha); | ||
| 383 : | gmc->dV[0] <<= (Beta-Alpha); | ||
| 384 : | Alpha = Beta; | ||
| 385 : | Ws = Hs; | ||
| 386 : | } | ||
| 387 : | else { | ||
| 388 : | gmc->dU[1] <<= Alpha - Beta; | ||
| 389 : | gmc->dV[1] <<= Alpha - Beta; | ||
| 390 : | } | ||
| 391 : | } | ||
| 392 : | edgomez | 1160 | /* upscale to 16b fixed-point */ |
| 393 : | syskin | 1085 | gmc->dU[0] <<= (16-Alpha - rho); |
| 394 : | gmc->dU[1] <<= (16-Alpha - rho); | ||
| 395 : | gmc->dV[0] <<= (16-Alpha - rho); | ||
| 396 : | gmc->dV[1] <<= (16-Alpha - rho); | ||
| 397 : | chl | 1077 | |
| 398 : | syskin | 1085 | gmc->Uo = ( pts->duv[0].x <<(16+ accuracy)) + (1<<15); |
| 399 : | gmc->Vo = ( pts->duv[0].y <<(16+ accuracy)) + (1<<15); | ||
| 400 : | gmc->Uco = ((pts->duv[0].x-1)<<(17+ accuracy)) + (1<<17); | ||
| 401 : | gmc->Vco = ((pts->duv[0].y-1)<<(17+ accuracy)) + (1<<17); | ||
| 402 : | gmc->Uco = (gmc->Uco + gmc->dU[0] + gmc->dU[1])>>2; | ||
| 403 : | gmc->Vco = (gmc->Vco + gmc->dV[0] + gmc->dV[1])>>2; | ||
| 404 : | chl | 1077 | |
| 405 : | syskin | 1085 | gmc->predict_16x16 = Predict_16x16_C; |
| 406 : | gmc->predict_8x8 = Predict_8x8_C; | ||
| 407 : | gmc->get_average_mv = get_average_mv_C; | ||
| 408 : | } | ||
| 409 : | chl | 1077 | } |
| 410 : | |||
| 411 : | edgomez | 1160 | /* ******************************************************************* |
| 412 : | * quick and dirty routine to generate the full warped image | ||
| 413 : | * (pGMC != NULL) or just all average Motion Vectors (pGMC == NULL) */ | ||
| 414 : | chl | 1077 | |
| 415 : | void | ||
| 416 : | edgomez | 1160 | generate_GMCimage( const NEW_GMC_DATA *const gmc_data, /* [input] precalculated data */ |
| 417 : | const IMAGE *const pRef, /* [input] */ | ||
| 418 : | chl | 1077 | const int mb_width, |
| 419 : | const int mb_height, | ||
| 420 : | const int stride, | ||
| 421 : | const int stride2, | ||
| 422 : | edgomez | 1160 | const int fcode, /* [input] some parameters... */ |
| 423 : | const int32_t quarterpel, /* [input] for rounding avgMV */ | ||
| 424 : | const int reduced_resolution, /* [input] ignored */ | ||
| 425 : | const int32_t rounding, /* [input] for rounding image data */ | ||
| 426 : | MACROBLOCK *const pMBs, /* [output] average motion vectors */ | ||
| 427 : | IMAGE *const pGMC) /* [output] full warped image */ | ||
| 428 : | chl | 1077 | { |
| 429 : | |||
| 430 : | unsigned int mj,mi; | ||
| 431 : | VECTOR avgMV; | ||
| 432 : | |||
| 433 : | for (mj = 0; mj < (unsigned int)mb_height; mj++) | ||
| 434 : | for (mi = 0; mi < (unsigned int)mb_width; mi++) { | ||
| 435 : | const int mbnum = mj*mb_width+mi; | ||
| 436 : | if (pGMC) | ||
| 437 : | { | ||
| 438 : | gmc_data->predict_16x16(gmc_data, | ||
| 439 : | pGMC->y + mj*16*stride + mi*16, pRef->y, | ||
| 440 : | stride, stride, mi, mj, rounding); | ||
| 441 : | |||
| 442 : | gmc_data->predict_8x8(gmc_data, | ||
| 443 : | pGMC->u + mj*8*stride2 + mi*8, pRef->u, | ||
| 444 : | pGMC->v + mj*8*stride2 + mi*8, pRef->v, | ||
| 445 : | stride2, stride2, mi, mj, rounding); | ||
| 446 : | } | ||
| 447 : | gmc_data->get_average_mv(gmc_data, &avgMV, mi, mj, quarterpel); | ||
| 448 : | |||
| 449 : | pMBs[mbnum].amv.x = gmc_sanitize(avgMV.x, quarterpel, fcode); | ||
| 450 : | pMBs[mbnum].amv.y = gmc_sanitize(avgMV.y, quarterpel, fcode); | ||
| 451 : | |||
| 452 : | pMBs[mbnum].mcsel = 0; /* until mode decision */ | ||
| 453 : | } | ||
| 454 : | } |
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