1/* 2 * Optimized for ia32 CPUs by Nick Kurshev <nickols_k@mail.ru> 3 * H.263, MPEG-1, MPEG-2 dequantizer & draw_edges by Michael Niedermayer <michaelni@gmx.at> 4 * 5 * This file is part of FFmpeg. 6 * 7 * FFmpeg is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2.1 of the License, or (at your option) any later version. 11 * 12 * FFmpeg is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with FFmpeg; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20 */ 21 22#include "libavutil/attributes.h" 23#include "libavutil/cpu.h" 24#include "libavutil/x86/asm.h" 25#include "libavutil/x86/cpu.h" 26#include "libavcodec/avcodec.h" 27#include "libavcodec/mpegvideo.h" 28#include "libavcodec/mpegvideodata.h" 29 30#if HAVE_MMX_INLINE 31 32static void dct_unquantize_h263_intra_mmx(MpegEncContext *s, 33 int16_t *block, int n, int qscale) 34{ 35 x86_reg level, qmul, qadd, nCoeffs; 36 37 qmul = qscale << 1; 38 39 av_assert2(s->block_last_index[n]>=0 || s->h263_aic); 40 41 if (!s->h263_aic) { 42 if (n < 4) 43 level = block[0] * s->y_dc_scale; 44 else 45 level = block[0] * s->c_dc_scale; 46 qadd = (qscale - 1) | 1; 47 }else{ 48 qadd = 0; 49 level= block[0]; 50 } 51 if(s->ac_pred) 52 nCoeffs=63; 53 else 54 nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]; 55 56__asm__ volatile( 57 "movd %1, %%mm6 \n\t" //qmul 58 "packssdw %%mm6, %%mm6 \n\t" 59 "packssdw %%mm6, %%mm6 \n\t" 60 "movd %2, %%mm5 \n\t" //qadd 61 "pxor %%mm7, %%mm7 \n\t" 62 "packssdw %%mm5, %%mm5 \n\t" 63 "packssdw %%mm5, %%mm5 \n\t" 64 "psubw %%mm5, %%mm7 \n\t" 65 "pxor %%mm4, %%mm4 \n\t" 66 ".p2align 4 \n\t" 67 "1: \n\t" 68 "movq (%0, %3), %%mm0 \n\t" 69 "movq 8(%0, %3), %%mm1 \n\t" 70 71 "pmullw %%mm6, %%mm0 \n\t" 72 "pmullw %%mm6, %%mm1 \n\t" 73 74 "movq (%0, %3), %%mm2 \n\t" 75 "movq 8(%0, %3), %%mm3 \n\t" 76 77 "pcmpgtw %%mm4, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 78 "pcmpgtw %%mm4, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 79 80 "pxor %%mm2, %%mm0 \n\t" 81 "pxor %%mm3, %%mm1 \n\t" 82 83 "paddw %%mm7, %%mm0 \n\t" 84 "paddw %%mm7, %%mm1 \n\t" 85 86 "pxor %%mm0, %%mm2 \n\t" 87 "pxor %%mm1, %%mm3 \n\t" 88 89 "pcmpeqw %%mm7, %%mm0 \n\t" // block[i] == 0 ? -1 : 0 90 "pcmpeqw %%mm7, %%mm1 \n\t" // block[i] == 0 ? -1 : 0 91 92 "pandn %%mm2, %%mm0 \n\t" 93 "pandn %%mm3, %%mm1 \n\t" 94 95 "movq %%mm0, (%0, %3) \n\t" 96 "movq %%mm1, 8(%0, %3) \n\t" 97 98 "add $16, %3 \n\t" 99 "jng 1b \n\t" 100 ::"r" (block+nCoeffs), "rm"(qmul), "rm" (qadd), "r" (2*(-nCoeffs)) 101 : "memory" 102 ); 103 block[0]= level; 104} 105 106 107static void dct_unquantize_h263_inter_mmx(MpegEncContext *s, 108 int16_t *block, int n, int qscale) 109{ 110 x86_reg qmul, qadd, nCoeffs; 111 112 qmul = qscale << 1; 113 qadd = (qscale - 1) | 1; 114 115 av_assert2(s->block_last_index[n]>=0 || s->h263_aic); 116 117 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ]; 118 119__asm__ volatile( 120 "movd %1, %%mm6 \n\t" //qmul 121 "packssdw %%mm6, %%mm6 \n\t" 122 "packssdw %%mm6, %%mm6 \n\t" 123 "movd %2, %%mm5 \n\t" //qadd 124 "pxor %%mm7, %%mm7 \n\t" 125 "packssdw %%mm5, %%mm5 \n\t" 126 "packssdw %%mm5, %%mm5 \n\t" 127 "psubw %%mm5, %%mm7 \n\t" 128 "pxor %%mm4, %%mm4 \n\t" 129 ".p2align 4 \n\t" 130 "1: \n\t" 131 "movq (%0, %3), %%mm0 \n\t" 132 "movq 8(%0, %3), %%mm1 \n\t" 133 134 "pmullw %%mm6, %%mm0 \n\t" 135 "pmullw %%mm6, %%mm1 \n\t" 136 137 "movq (%0, %3), %%mm2 \n\t" 138 "movq 8(%0, %3), %%mm3 \n\t" 139 140 "pcmpgtw %%mm4, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 141 "pcmpgtw %%mm4, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 142 143 "pxor %%mm2, %%mm0 \n\t" 144 "pxor %%mm3, %%mm1 \n\t" 145 146 "paddw %%mm7, %%mm0 \n\t" 147 "paddw %%mm7, %%mm1 \n\t" 148 149 "pxor %%mm0, %%mm2 \n\t" 150 "pxor %%mm1, %%mm3 \n\t" 151 152 "pcmpeqw %%mm7, %%mm0 \n\t" // block[i] == 0 ? -1 : 0 153 "pcmpeqw %%mm7, %%mm1 \n\t" // block[i] == 0 ? -1 : 0 154 155 "pandn %%mm2, %%mm0 \n\t" 156 "pandn %%mm3, %%mm1 \n\t" 157 158 "movq %%mm0, (%0, %3) \n\t" 159 "movq %%mm1, 8(%0, %3) \n\t" 160 161 "add $16, %3 \n\t" 162 "jng 1b \n\t" 163 ::"r" (block+nCoeffs), "rm"(qmul), "rm" (qadd), "r" (2*(-nCoeffs)) 164 : "memory" 165 ); 166} 167 168static void dct_unquantize_mpeg1_intra_mmx(MpegEncContext *s, 169 int16_t *block, int n, int qscale) 170{ 171 x86_reg nCoeffs; 172 const uint16_t *quant_matrix; 173 int block0; 174 175 av_assert2(s->block_last_index[n]>=0); 176 177 nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]+1; 178 179 if (n < 4) 180 block0 = block[0] * s->y_dc_scale; 181 else 182 block0 = block[0] * s->c_dc_scale; 183 /* XXX: only MPEG-1 */ 184 quant_matrix = s->intra_matrix; 185__asm__ volatile( 186 "pcmpeqw %%mm7, %%mm7 \n\t" 187 "psrlw $15, %%mm7 \n\t" 188 "movd %2, %%mm6 \n\t" 189 "packssdw %%mm6, %%mm6 \n\t" 190 "packssdw %%mm6, %%mm6 \n\t" 191 "mov %3, %%"FF_REG_a" \n\t" 192 ".p2align 4 \n\t" 193 "1: \n\t" 194 "movq (%0, %%"FF_REG_a"), %%mm0 \n\t" 195 "movq 8(%0, %%"FF_REG_a"), %%mm1\n\t" 196 "movq (%1, %%"FF_REG_a"), %%mm4 \n\t" 197 "movq 8(%1, %%"FF_REG_a"), %%mm5\n\t" 198 "pmullw %%mm6, %%mm4 \n\t" // q=qscale*quant_matrix[i] 199 "pmullw %%mm6, %%mm5 \n\t" // q=qscale*quant_matrix[i] 200 "pxor %%mm2, %%mm2 \n\t" 201 "pxor %%mm3, %%mm3 \n\t" 202 "pcmpgtw %%mm0, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 203 "pcmpgtw %%mm1, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 204 "pxor %%mm2, %%mm0 \n\t" 205 "pxor %%mm3, %%mm1 \n\t" 206 "psubw %%mm2, %%mm0 \n\t" // abs(block[i]) 207 "psubw %%mm3, %%mm1 \n\t" // abs(block[i]) 208 "pmullw %%mm4, %%mm0 \n\t" // abs(block[i])*q 209 "pmullw %%mm5, %%mm1 \n\t" // abs(block[i])*q 210 "pxor %%mm4, %%mm4 \n\t" 211 "pxor %%mm5, %%mm5 \n\t" // FIXME slow 212 "pcmpeqw (%0, %%"FF_REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0 213 "pcmpeqw 8(%0, %%"FF_REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0 214 "psraw $3, %%mm0 \n\t" 215 "psraw $3, %%mm1 \n\t" 216 "psubw %%mm7, %%mm0 \n\t" 217 "psubw %%mm7, %%mm1 \n\t" 218 "por %%mm7, %%mm0 \n\t" 219 "por %%mm7, %%mm1 \n\t" 220 "pxor %%mm2, %%mm0 \n\t" 221 "pxor %%mm3, %%mm1 \n\t" 222 "psubw %%mm2, %%mm0 \n\t" 223 "psubw %%mm3, %%mm1 \n\t" 224 "pandn %%mm0, %%mm4 \n\t" 225 "pandn %%mm1, %%mm5 \n\t" 226 "movq %%mm4, (%0, %%"FF_REG_a") \n\t" 227 "movq %%mm5, 8(%0, %%"FF_REG_a")\n\t" 228 229 "add $16, %%"FF_REG_a" \n\t" 230 "js 1b \n\t" 231 ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "g" (-2*nCoeffs) 232 : "%"FF_REG_a, "memory" 233 ); 234 block[0]= block0; 235} 236 237static void dct_unquantize_mpeg1_inter_mmx(MpegEncContext *s, 238 int16_t *block, int n, int qscale) 239{ 240 x86_reg nCoeffs; 241 const uint16_t *quant_matrix; 242 243 av_assert2(s->block_last_index[n]>=0); 244 245 nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]+1; 246 247 quant_matrix = s->inter_matrix; 248__asm__ volatile( 249 "pcmpeqw %%mm7, %%mm7 \n\t" 250 "psrlw $15, %%mm7 \n\t" 251 "movd %2, %%mm6 \n\t" 252 "packssdw %%mm6, %%mm6 \n\t" 253 "packssdw %%mm6, %%mm6 \n\t" 254 "mov %3, %%"FF_REG_a" \n\t" 255 ".p2align 4 \n\t" 256 "1: \n\t" 257 "movq (%0, %%"FF_REG_a"), %%mm0 \n\t" 258 "movq 8(%0, %%"FF_REG_a"), %%mm1\n\t" 259 "movq (%1, %%"FF_REG_a"), %%mm4 \n\t" 260 "movq 8(%1, %%"FF_REG_a"), %%mm5\n\t" 261 "pmullw %%mm6, %%mm4 \n\t" // q=qscale*quant_matrix[i] 262 "pmullw %%mm6, %%mm5 \n\t" // q=qscale*quant_matrix[i] 263 "pxor %%mm2, %%mm2 \n\t" 264 "pxor %%mm3, %%mm3 \n\t" 265 "pcmpgtw %%mm0, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 266 "pcmpgtw %%mm1, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 267 "pxor %%mm2, %%mm0 \n\t" 268 "pxor %%mm3, %%mm1 \n\t" 269 "psubw %%mm2, %%mm0 \n\t" // abs(block[i]) 270 "psubw %%mm3, %%mm1 \n\t" // abs(block[i]) 271 "paddw %%mm0, %%mm0 \n\t" // abs(block[i])*2 272 "paddw %%mm1, %%mm1 \n\t" // abs(block[i])*2 273 "paddw %%mm7, %%mm0 \n\t" // abs(block[i])*2 + 1 274 "paddw %%mm7, %%mm1 \n\t" // abs(block[i])*2 + 1 275 "pmullw %%mm4, %%mm0 \n\t" // (abs(block[i])*2 + 1)*q 276 "pmullw %%mm5, %%mm1 \n\t" // (abs(block[i])*2 + 1)*q 277 "pxor %%mm4, %%mm4 \n\t" 278 "pxor %%mm5, %%mm5 \n\t" // FIXME slow 279 "pcmpeqw (%0, %%"FF_REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0 280 "pcmpeqw 8(%0, %%"FF_REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0 281 "psraw $4, %%mm0 \n\t" 282 "psraw $4, %%mm1 \n\t" 283 "psubw %%mm7, %%mm0 \n\t" 284 "psubw %%mm7, %%mm1 \n\t" 285 "por %%mm7, %%mm0 \n\t" 286 "por %%mm7, %%mm1 \n\t" 287 "pxor %%mm2, %%mm0 \n\t" 288 "pxor %%mm3, %%mm1 \n\t" 289 "psubw %%mm2, %%mm0 \n\t" 290 "psubw %%mm3, %%mm1 \n\t" 291 "pandn %%mm0, %%mm4 \n\t" 292 "pandn %%mm1, %%mm5 \n\t" 293 "movq %%mm4, (%0, %%"FF_REG_a") \n\t" 294 "movq %%mm5, 8(%0, %%"FF_REG_a")\n\t" 295 296 "add $16, %%"FF_REG_a" \n\t" 297 "js 1b \n\t" 298 ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "g" (-2*nCoeffs) 299 : "%"FF_REG_a, "memory" 300 ); 301} 302 303static void dct_unquantize_mpeg2_intra_mmx(MpegEncContext *s, 304 int16_t *block, int n, int qscale) 305{ 306 x86_reg nCoeffs; 307 const uint16_t *quant_matrix; 308 int block0; 309 310 av_assert2(s->block_last_index[n]>=0); 311 312 if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale]; 313 else qscale <<= 1; 314 315 if(s->alternate_scan) nCoeffs= 63; //FIXME 316 else nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]; 317 318 if (n < 4) 319 block0 = block[0] * s->y_dc_scale; 320 else 321 block0 = block[0] * s->c_dc_scale; 322 quant_matrix = s->intra_matrix; 323__asm__ volatile( 324 "pcmpeqw %%mm7, %%mm7 \n\t" 325 "psrlw $15, %%mm7 \n\t" 326 "movd %2, %%mm6 \n\t" 327 "packssdw %%mm6, %%mm6 \n\t" 328 "packssdw %%mm6, %%mm6 \n\t" 329 "mov %3, %%"FF_REG_a" \n\t" 330 ".p2align 4 \n\t" 331 "1: \n\t" 332 "movq (%0, %%"FF_REG_a"), %%mm0 \n\t" 333 "movq 8(%0, %%"FF_REG_a"), %%mm1\n\t" 334 "movq (%1, %%"FF_REG_a"), %%mm4 \n\t" 335 "movq 8(%1, %%"FF_REG_a"), %%mm5\n\t" 336 "pmullw %%mm6, %%mm4 \n\t" // q=qscale*quant_matrix[i] 337 "pmullw %%mm6, %%mm5 \n\t" // q=qscale*quant_matrix[i] 338 "pxor %%mm2, %%mm2 \n\t" 339 "pxor %%mm3, %%mm3 \n\t" 340 "pcmpgtw %%mm0, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 341 "pcmpgtw %%mm1, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 342 "pxor %%mm2, %%mm0 \n\t" 343 "pxor %%mm3, %%mm1 \n\t" 344 "psubw %%mm2, %%mm0 \n\t" // abs(block[i]) 345 "psubw %%mm3, %%mm1 \n\t" // abs(block[i]) 346 "pmullw %%mm4, %%mm0 \n\t" // abs(block[i])*q 347 "pmullw %%mm5, %%mm1 \n\t" // abs(block[i])*q 348 "pxor %%mm4, %%mm4 \n\t" 349 "pxor %%mm5, %%mm5 \n\t" // FIXME slow 350 "pcmpeqw (%0, %%"FF_REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0 351 "pcmpeqw 8(%0, %%"FF_REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0 352 "psraw $4, %%mm0 \n\t" 353 "psraw $4, %%mm1 \n\t" 354 "pxor %%mm2, %%mm0 \n\t" 355 "pxor %%mm3, %%mm1 \n\t" 356 "psubw %%mm2, %%mm0 \n\t" 357 "psubw %%mm3, %%mm1 \n\t" 358 "pandn %%mm0, %%mm4 \n\t" 359 "pandn %%mm1, %%mm5 \n\t" 360 "movq %%mm4, (%0, %%"FF_REG_a") \n\t" 361 "movq %%mm5, 8(%0, %%"FF_REG_a")\n\t" 362 363 "add $16, %%"FF_REG_a" \n\t" 364 "jng 1b \n\t" 365 ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "g" (-2*nCoeffs) 366 : "%"FF_REG_a, "memory" 367 ); 368 block[0]= block0; 369 //Note, we do not do mismatch control for intra as errors cannot accumulate 370} 371 372static void dct_unquantize_mpeg2_inter_mmx(MpegEncContext *s, 373 int16_t *block, int n, int qscale) 374{ 375 x86_reg nCoeffs; 376 const uint16_t *quant_matrix; 377 378 av_assert2(s->block_last_index[n]>=0); 379 380 if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale]; 381 else qscale <<= 1; 382 383 if(s->alternate_scan) nCoeffs= 63; //FIXME 384 else nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]; 385 386 quant_matrix = s->inter_matrix; 387__asm__ volatile( 388 "pcmpeqw %%mm7, %%mm7 \n\t" 389 "psrlq $48, %%mm7 \n\t" 390 "movd %2, %%mm6 \n\t" 391 "packssdw %%mm6, %%mm6 \n\t" 392 "packssdw %%mm6, %%mm6 \n\t" 393 "mov %3, %%"FF_REG_a" \n\t" 394 ".p2align 4 \n\t" 395 "1: \n\t" 396 "movq (%0, %%"FF_REG_a"), %%mm0 \n\t" 397 "movq 8(%0, %%"FF_REG_a"), %%mm1\n\t" 398 "movq (%1, %%"FF_REG_a"), %%mm4 \n\t" 399 "movq 8(%1, %%"FF_REG_a"), %%mm5\n\t" 400 "pmullw %%mm6, %%mm4 \n\t" // q=qscale*quant_matrix[i] 401 "pmullw %%mm6, %%mm5 \n\t" // q=qscale*quant_matrix[i] 402 "pxor %%mm2, %%mm2 \n\t" 403 "pxor %%mm3, %%mm3 \n\t" 404 "pcmpgtw %%mm0, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 405 "pcmpgtw %%mm1, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 406 "pxor %%mm2, %%mm0 \n\t" 407 "pxor %%mm3, %%mm1 \n\t" 408 "psubw %%mm2, %%mm0 \n\t" // abs(block[i]) 409 "psubw %%mm3, %%mm1 \n\t" // abs(block[i]) 410 "paddw %%mm0, %%mm0 \n\t" // abs(block[i])*2 411 "paddw %%mm1, %%mm1 \n\t" // abs(block[i])*2 412 "pmullw %%mm4, %%mm0 \n\t" // abs(block[i])*2*q 413 "pmullw %%mm5, %%mm1 \n\t" // abs(block[i])*2*q 414 "paddw %%mm4, %%mm0 \n\t" // (abs(block[i])*2 + 1)*q 415 "paddw %%mm5, %%mm1 \n\t" // (abs(block[i])*2 + 1)*q 416 "pxor %%mm4, %%mm4 \n\t" 417 "pxor %%mm5, %%mm5 \n\t" // FIXME slow 418 "pcmpeqw (%0, %%"FF_REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0 419 "pcmpeqw 8(%0, %%"FF_REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0 420 "psrlw $5, %%mm0 \n\t" 421 "psrlw $5, %%mm1 \n\t" 422 "pxor %%mm2, %%mm0 \n\t" 423 "pxor %%mm3, %%mm1 \n\t" 424 "psubw %%mm2, %%mm0 \n\t" 425 "psubw %%mm3, %%mm1 \n\t" 426 "pandn %%mm0, %%mm4 \n\t" 427 "pandn %%mm1, %%mm5 \n\t" 428 "pxor %%mm4, %%mm7 \n\t" 429 "pxor %%mm5, %%mm7 \n\t" 430 "movq %%mm4, (%0, %%"FF_REG_a") \n\t" 431 "movq %%mm5, 8(%0, %%"FF_REG_a")\n\t" 432 433 "add $16, %%"FF_REG_a" \n\t" 434 "jng 1b \n\t" 435 "movd 124(%0, %3), %%mm0 \n\t" 436 "movq %%mm7, %%mm6 \n\t" 437 "psrlq $32, %%mm7 \n\t" 438 "pxor %%mm6, %%mm7 \n\t" 439 "movq %%mm7, %%mm6 \n\t" 440 "psrlq $16, %%mm7 \n\t" 441 "pxor %%mm6, %%mm7 \n\t" 442 "pslld $31, %%mm7 \n\t" 443 "psrlq $15, %%mm7 \n\t" 444 "pxor %%mm7, %%mm0 \n\t" 445 "movd %%mm0, 124(%0, %3) \n\t" 446 447 ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "r" (-2*nCoeffs) 448 : "%"FF_REG_a, "memory" 449 ); 450} 451 452#endif /* HAVE_MMX_INLINE */ 453 454av_cold void ff_mpv_common_init_x86(MpegEncContext *s) 455{ 456#if HAVE_MMX_INLINE 457 int cpu_flags = av_get_cpu_flags(); 458 459 if (INLINE_MMX(cpu_flags)) { 460 s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_mmx; 461 s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_mmx; 462 s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_mmx; 463 s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_mmx; 464 if (!(s->avctx->flags & AV_CODEC_FLAG_BITEXACT)) 465 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_mmx; 466 s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_mmx; 467 } 468#endif /* HAVE_MMX_INLINE */ 469} 470