1/* 2 * H.26L/H.264/AVC/JVT/14496-10/... decoder 3 * Copyright (c) 2003 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/** 23 * @file 24 * H.264 / AVC / MPEG-4 part10 macroblock decoding 25 */ 26 27#include <stdint.h> 28 29#include "config.h" 30 31#include "libavutil/common.h" 32#include "libavutil/intreadwrite.h" 33#include "avcodec.h" 34#include "h264dec.h" 35#include "h264_ps.h" 36#include "qpeldsp.h" 37#include "threadframe.h" 38 39static inline int get_lowest_part_list_y(H264SliceContext *sl, 40 int n, int height, int y_offset, int list) 41{ 42 int raw_my = sl->mv_cache[list][scan8[n]][1]; 43 int filter_height_down = (raw_my & 3) ? 3 : 0; 44 int full_my = (raw_my >> 2) + y_offset; 45 int bottom = full_my + filter_height_down + height; 46 47 av_assert2(height >= 0); 48 49 return FFMAX(0, bottom); 50} 51 52static inline void get_lowest_part_y(const H264Context *h, H264SliceContext *sl, 53 int16_t refs[2][48], int n, 54 int height, int y_offset, int list0, 55 int list1, int *nrefs) 56{ 57 int my; 58 59 y_offset += 16 * (sl->mb_y >> MB_FIELD(sl)); 60 61 if (list0) { 62 int ref_n = sl->ref_cache[0][scan8[n]]; 63 H264Ref *ref = &sl->ref_list[0][ref_n]; 64 65 // Error resilience puts the current picture in the ref list. 66 // Don't try to wait on these as it will cause a deadlock. 67 // Fields can wait on each other, though. 68 if (ref->parent->tf.progress->data != h->cur_pic.tf.progress->data || 69 (ref->reference & 3) != h->picture_structure) { 70 my = get_lowest_part_list_y(sl, n, height, y_offset, 0); 71 if (refs[0][ref_n] < 0) 72 nrefs[0] += 1; 73 refs[0][ref_n] = FFMAX(refs[0][ref_n], my); 74 } 75 } 76 77 if (list1) { 78 int ref_n = sl->ref_cache[1][scan8[n]]; 79 H264Ref *ref = &sl->ref_list[1][ref_n]; 80 81 if (ref->parent->tf.progress->data != h->cur_pic.tf.progress->data || 82 (ref->reference & 3) != h->picture_structure) { 83 my = get_lowest_part_list_y(sl, n, height, y_offset, 1); 84 if (refs[1][ref_n] < 0) 85 nrefs[1] += 1; 86 refs[1][ref_n] = FFMAX(refs[1][ref_n], my); 87 } 88 } 89} 90 91/** 92 * Wait until all reference frames are available for MC operations. 93 * 94 * @param h the H.264 context 95 */ 96static void await_references(const H264Context *h, H264SliceContext *sl) 97{ 98 const int mb_xy = sl->mb_xy; 99 const int mb_type = h->cur_pic.mb_type[mb_xy]; 100 int16_t refs[2][48]; 101 int nrefs[2] = { 0 }; 102 int ref, list; 103 104 memset(refs, -1, sizeof(refs)); 105 106 if (IS_16X16(mb_type)) { 107 get_lowest_part_y(h, sl, refs, 0, 16, 0, 108 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs); 109 } else if (IS_16X8(mb_type)) { 110 get_lowest_part_y(h, sl, refs, 0, 8, 0, 111 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs); 112 get_lowest_part_y(h, sl, refs, 8, 8, 8, 113 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs); 114 } else if (IS_8X16(mb_type)) { 115 get_lowest_part_y(h, sl, refs, 0, 16, 0, 116 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs); 117 get_lowest_part_y(h, sl, refs, 4, 16, 0, 118 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs); 119 } else { 120 int i; 121 122 av_assert2(IS_8X8(mb_type)); 123 124 for (i = 0; i < 4; i++) { 125 const int sub_mb_type = sl->sub_mb_type[i]; 126 const int n = 4 * i; 127 int y_offset = (i & 2) << 2; 128 129 if (IS_SUB_8X8(sub_mb_type)) { 130 get_lowest_part_y(h, sl, refs, n, 8, y_offset, 131 IS_DIR(sub_mb_type, 0, 0), 132 IS_DIR(sub_mb_type, 0, 1), 133 nrefs); 134 } else if (IS_SUB_8X4(sub_mb_type)) { 135 get_lowest_part_y(h, sl, refs, n, 4, y_offset, 136 IS_DIR(sub_mb_type, 0, 0), 137 IS_DIR(sub_mb_type, 0, 1), 138 nrefs); 139 get_lowest_part_y(h, sl, refs, n + 2, 4, y_offset + 4, 140 IS_DIR(sub_mb_type, 0, 0), 141 IS_DIR(sub_mb_type, 0, 1), 142 nrefs); 143 } else if (IS_SUB_4X8(sub_mb_type)) { 144 get_lowest_part_y(h, sl, refs, n, 8, y_offset, 145 IS_DIR(sub_mb_type, 0, 0), 146 IS_DIR(sub_mb_type, 0, 1), 147 nrefs); 148 get_lowest_part_y(h, sl, refs, n + 1, 8, y_offset, 149 IS_DIR(sub_mb_type, 0, 0), 150 IS_DIR(sub_mb_type, 0, 1), 151 nrefs); 152 } else { 153 int j; 154 av_assert2(IS_SUB_4X4(sub_mb_type)); 155 for (j = 0; j < 4; j++) { 156 int sub_y_offset = y_offset + 2 * (j & 2); 157 get_lowest_part_y(h, sl, refs, n + j, 4, sub_y_offset, 158 IS_DIR(sub_mb_type, 0, 0), 159 IS_DIR(sub_mb_type, 0, 1), 160 nrefs); 161 } 162 } 163 } 164 } 165 166 for (list = sl->list_count - 1; list >= 0; list--) 167 for (ref = 0; ref < 48 && nrefs[list]; ref++) { 168 int row = refs[list][ref]; 169 if (row >= 0) { 170 H264Ref *ref_pic = &sl->ref_list[list][ref]; 171 int ref_field = ref_pic->reference - 1; 172 int ref_field_picture = ref_pic->parent->field_picture; 173 int pic_height = 16 * h->mb_height >> ref_field_picture; 174 175 row <<= MB_MBAFF(sl); 176 nrefs[list]--; 177 178 if (!FIELD_PICTURE(h) && ref_field_picture) { // frame referencing two fields 179 av_assert2((ref_pic->parent->reference & 3) == 3); 180 ff_thread_await_progress(&ref_pic->parent->tf, 181 FFMIN((row >> 1) - !(row & 1), 182 pic_height - 1), 183 1); 184 ff_thread_await_progress(&ref_pic->parent->tf, 185 FFMIN((row >> 1), pic_height - 1), 186 0); 187 } else if (FIELD_PICTURE(h) && !ref_field_picture) { // field referencing one field of a frame 188 ff_thread_await_progress(&ref_pic->parent->tf, 189 FFMIN(row * 2 + ref_field, 190 pic_height - 1), 191 0); 192 } else if (FIELD_PICTURE(h)) { 193 ff_thread_await_progress(&ref_pic->parent->tf, 194 FFMIN(row, pic_height - 1), 195 ref_field); 196 } else { 197 ff_thread_await_progress(&ref_pic->parent->tf, 198 FFMIN(row, pic_height - 1), 199 0); 200 } 201 } 202 } 203} 204 205static av_always_inline void mc_dir_part(const H264Context *h, H264SliceContext *sl, 206 H264Ref *pic, 207 int n, int square, int height, 208 int delta, int list, 209 uint8_t *dest_y, uint8_t *dest_cb, 210 uint8_t *dest_cr, 211 int src_x_offset, int src_y_offset, 212 const qpel_mc_func *qpix_op, 213 h264_chroma_mc_func chroma_op, 214 int pixel_shift, int chroma_idc) 215{ 216 const int mx = sl->mv_cache[list][scan8[n]][0] + src_x_offset * 8; 217 int my = sl->mv_cache[list][scan8[n]][1] + src_y_offset * 8; 218 const int luma_xy = (mx & 3) + ((my & 3) << 2); 219 ptrdiff_t offset = (mx >> 2) * (1 << pixel_shift) + (my >> 2) * sl->mb_linesize; 220 uint8_t *src_y = pic->data[0] + offset; 221 uint8_t *src_cb, *src_cr; 222 int extra_width = 0; 223 int extra_height = 0; 224 int emu = 0; 225 const int full_mx = mx >> 2; 226 const int full_my = my >> 2; 227 const int pic_width = 16 * h->mb_width; 228 const int pic_height = 16 * h->mb_height >> MB_FIELD(sl); 229 int ysh; 230 231 if (mx & 7) 232 extra_width -= 3; 233 if (my & 7) 234 extra_height -= 3; 235 236 if (full_mx < 0 - extra_width || 237 full_my < 0 - extra_height || 238 full_mx + 16 /*FIXME*/ > pic_width + extra_width || 239 full_my + 16 /*FIXME*/ > pic_height + extra_height) { 240 h->vdsp.emulated_edge_mc(sl->edge_emu_buffer, 241 src_y - (2 << pixel_shift) - 2 * sl->mb_linesize, 242 sl->mb_linesize, sl->mb_linesize, 243 16 + 5, 16 + 5 /*FIXME*/, full_mx - 2, 244 full_my - 2, pic_width, pic_height); 245 src_y = sl->edge_emu_buffer + (2 << pixel_shift) + 2 * sl->mb_linesize; 246 emu = 1; 247 } 248 249 qpix_op[luma_xy](dest_y, src_y, sl->mb_linesize); // FIXME try variable height perhaps? 250 if (!square) 251 qpix_op[luma_xy](dest_y + delta, src_y + delta, sl->mb_linesize); 252 253 if (CONFIG_GRAY && h->flags & AV_CODEC_FLAG_GRAY) 254 return; 255 256 if (chroma_idc == 3 /* yuv444 */) { 257 src_cb = pic->data[1] + offset; 258 if (emu) { 259 h->vdsp.emulated_edge_mc(sl->edge_emu_buffer, 260 src_cb - (2 << pixel_shift) - 2 * sl->mb_linesize, 261 sl->mb_linesize, sl->mb_linesize, 262 16 + 5, 16 + 5 /*FIXME*/, 263 full_mx - 2, full_my - 2, 264 pic_width, pic_height); 265 src_cb = sl->edge_emu_buffer + (2 << pixel_shift) + 2 * sl->mb_linesize; 266 } 267 qpix_op[luma_xy](dest_cb, src_cb, sl->mb_linesize); // FIXME try variable height perhaps? 268 if (!square) 269 qpix_op[luma_xy](dest_cb + delta, src_cb + delta, sl->mb_linesize); 270 271 src_cr = pic->data[2] + offset; 272 if (emu) { 273 h->vdsp.emulated_edge_mc(sl->edge_emu_buffer, 274 src_cr - (2 << pixel_shift) - 2 * sl->mb_linesize, 275 sl->mb_linesize, sl->mb_linesize, 276 16 + 5, 16 + 5 /*FIXME*/, 277 full_mx - 2, full_my - 2, 278 pic_width, pic_height); 279 src_cr = sl->edge_emu_buffer + (2 << pixel_shift) + 2 * sl->mb_linesize; 280 } 281 qpix_op[luma_xy](dest_cr, src_cr, sl->mb_linesize); // FIXME try variable height perhaps? 282 if (!square) 283 qpix_op[luma_xy](dest_cr + delta, src_cr + delta, sl->mb_linesize); 284 return; 285 } 286 287 ysh = 3 - (chroma_idc == 2 /* yuv422 */); 288 if (chroma_idc == 1 /* yuv420 */ && MB_FIELD(sl)) { 289 // chroma offset when predicting from a field of opposite parity 290 my += 2 * ((sl->mb_y & 1) - (pic->reference - 1)); 291 emu |= (my >> 3) < 0 || (my >> 3) + 8 >= (pic_height >> 1); 292 } 293 294 src_cb = pic->data[1] + ((mx >> 3) * (1 << pixel_shift)) + 295 (my >> ysh) * sl->mb_uvlinesize; 296 src_cr = pic->data[2] + ((mx >> 3) * (1 << pixel_shift)) + 297 (my >> ysh) * sl->mb_uvlinesize; 298 299 if (emu) { 300 h->vdsp.emulated_edge_mc(sl->edge_emu_buffer, src_cb, 301 sl->mb_uvlinesize, sl->mb_uvlinesize, 302 9, 8 * chroma_idc + 1, (mx >> 3), (my >> ysh), 303 pic_width >> 1, pic_height >> (chroma_idc == 1 /* yuv420 */)); 304 src_cb = sl->edge_emu_buffer; 305 } 306 chroma_op(dest_cb, src_cb, sl->mb_uvlinesize, 307 height >> (chroma_idc == 1 /* yuv420 */), 308 mx & 7, ((unsigned)my << (chroma_idc == 2 /* yuv422 */)) & 7); 309 310 if (emu) { 311 h->vdsp.emulated_edge_mc(sl->edge_emu_buffer, src_cr, 312 sl->mb_uvlinesize, sl->mb_uvlinesize, 313 9, 8 * chroma_idc + 1, (mx >> 3), (my >> ysh), 314 pic_width >> 1, pic_height >> (chroma_idc == 1 /* yuv420 */)); 315 src_cr = sl->edge_emu_buffer; 316 } 317 chroma_op(dest_cr, src_cr, sl->mb_uvlinesize, height >> (chroma_idc == 1 /* yuv420 */), 318 mx & 7, ((unsigned)my << (chroma_idc == 2 /* yuv422 */)) & 7); 319} 320 321static av_always_inline void mc_part_std(const H264Context *h, H264SliceContext *sl, 322 int n, int square, 323 int height, int delta, 324 uint8_t *dest_y, uint8_t *dest_cb, 325 uint8_t *dest_cr, 326 int x_offset, int y_offset, 327 const qpel_mc_func *qpix_put, 328 h264_chroma_mc_func chroma_put, 329 const qpel_mc_func *qpix_avg, 330 h264_chroma_mc_func chroma_avg, 331 int list0, int list1, 332 int pixel_shift, int chroma_idc) 333{ 334 const qpel_mc_func *qpix_op = qpix_put; 335 h264_chroma_mc_func chroma_op = chroma_put; 336 337 dest_y += (2 * x_offset << pixel_shift) + 2 * y_offset * sl->mb_linesize; 338 if (chroma_idc == 3 /* yuv444 */) { 339 dest_cb += (2 * x_offset << pixel_shift) + 2 * y_offset * sl->mb_linesize; 340 dest_cr += (2 * x_offset << pixel_shift) + 2 * y_offset * sl->mb_linesize; 341 } else if (chroma_idc == 2 /* yuv422 */) { 342 dest_cb += (x_offset << pixel_shift) + 2 * y_offset * sl->mb_uvlinesize; 343 dest_cr += (x_offset << pixel_shift) + 2 * y_offset * sl->mb_uvlinesize; 344 } else { /* yuv420 */ 345 dest_cb += (x_offset << pixel_shift) + y_offset * sl->mb_uvlinesize; 346 dest_cr += (x_offset << pixel_shift) + y_offset * sl->mb_uvlinesize; 347 } 348 x_offset += 8 * sl->mb_x; 349 y_offset += 8 * (sl->mb_y >> MB_FIELD(sl)); 350 351 if (list0) { 352 H264Ref *ref = &sl->ref_list[0][sl->ref_cache[0][scan8[n]]]; 353 mc_dir_part(h, sl, ref, n, square, height, delta, 0, 354 dest_y, dest_cb, dest_cr, x_offset, y_offset, 355 qpix_op, chroma_op, pixel_shift, chroma_idc); 356 357 qpix_op = qpix_avg; 358 chroma_op = chroma_avg; 359 } 360 361 if (list1) { 362 H264Ref *ref = &sl->ref_list[1][sl->ref_cache[1][scan8[n]]]; 363 mc_dir_part(h, sl, ref, n, square, height, delta, 1, 364 dest_y, dest_cb, dest_cr, x_offset, y_offset, 365 qpix_op, chroma_op, pixel_shift, chroma_idc); 366 } 367} 368 369static av_always_inline void mc_part_weighted(const H264Context *h, H264SliceContext *sl, 370 int n, int square, 371 int height, int delta, 372 uint8_t *dest_y, uint8_t *dest_cb, 373 uint8_t *dest_cr, 374 int x_offset, int y_offset, 375 const qpel_mc_func *qpix_put, 376 h264_chroma_mc_func chroma_put, 377 h264_weight_func luma_weight_op, 378 h264_weight_func chroma_weight_op, 379 h264_biweight_func luma_weight_avg, 380 h264_biweight_func chroma_weight_avg, 381 int list0, int list1, 382 int pixel_shift, int chroma_idc) 383{ 384 int chroma_height; 385 386 dest_y += (2 * x_offset << pixel_shift) + 2 * y_offset * sl->mb_linesize; 387 if (chroma_idc == 3 /* yuv444 */) { 388 chroma_height = height; 389 chroma_weight_avg = luma_weight_avg; 390 chroma_weight_op = luma_weight_op; 391 dest_cb += (2 * x_offset << pixel_shift) + 2 * y_offset * sl->mb_linesize; 392 dest_cr += (2 * x_offset << pixel_shift) + 2 * y_offset * sl->mb_linesize; 393 } else if (chroma_idc == 2 /* yuv422 */) { 394 chroma_height = height; 395 dest_cb += (x_offset << pixel_shift) + 2 * y_offset * sl->mb_uvlinesize; 396 dest_cr += (x_offset << pixel_shift) + 2 * y_offset * sl->mb_uvlinesize; 397 } else { /* yuv420 */ 398 chroma_height = height >> 1; 399 dest_cb += (x_offset << pixel_shift) + y_offset * sl->mb_uvlinesize; 400 dest_cr += (x_offset << pixel_shift) + y_offset * sl->mb_uvlinesize; 401 } 402 x_offset += 8 * sl->mb_x; 403 y_offset += 8 * (sl->mb_y >> MB_FIELD(sl)); 404 405 if (list0 && list1) { 406 /* don't optimize for luma-only case, since B-frames usually 407 * use implicit weights => chroma too. */ 408 uint8_t *tmp_cb = sl->bipred_scratchpad; 409 uint8_t *tmp_cr = sl->bipred_scratchpad + (16 << pixel_shift); 410 uint8_t *tmp_y = sl->bipred_scratchpad + 16 * sl->mb_uvlinesize; 411 int refn0 = sl->ref_cache[0][scan8[n]]; 412 int refn1 = sl->ref_cache[1][scan8[n]]; 413 414 mc_dir_part(h, sl, &sl->ref_list[0][refn0], n, square, height, delta, 0, 415 dest_y, dest_cb, dest_cr, 416 x_offset, y_offset, qpix_put, chroma_put, 417 pixel_shift, chroma_idc); 418 mc_dir_part(h, sl, &sl->ref_list[1][refn1], n, square, height, delta, 1, 419 tmp_y, tmp_cb, tmp_cr, 420 x_offset, y_offset, qpix_put, chroma_put, 421 pixel_shift, chroma_idc); 422 423 if (sl->pwt.use_weight == 2) { 424 int weight0 = sl->pwt.implicit_weight[refn0][refn1][sl->mb_y & 1]; 425 int weight1 = 64 - weight0; 426 luma_weight_avg(dest_y, tmp_y, sl->mb_linesize, 427 height, 5, weight0, weight1, 0); 428 if (!CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) { 429 chroma_weight_avg(dest_cb, tmp_cb, sl->mb_uvlinesize, 430 chroma_height, 5, weight0, weight1, 0); 431 chroma_weight_avg(dest_cr, tmp_cr, sl->mb_uvlinesize, 432 chroma_height, 5, weight0, weight1, 0); 433 } 434 } else { 435 luma_weight_avg(dest_y, tmp_y, sl->mb_linesize, height, 436 sl->pwt.luma_log2_weight_denom, 437 sl->pwt.luma_weight[refn0][0][0], 438 sl->pwt.luma_weight[refn1][1][0], 439 sl->pwt.luma_weight[refn0][0][1] + 440 sl->pwt.luma_weight[refn1][1][1]); 441 if (!CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) { 442 chroma_weight_avg(dest_cb, tmp_cb, sl->mb_uvlinesize, chroma_height, 443 sl->pwt.chroma_log2_weight_denom, 444 sl->pwt.chroma_weight[refn0][0][0][0], 445 sl->pwt.chroma_weight[refn1][1][0][0], 446 sl->pwt.chroma_weight[refn0][0][0][1] + 447 sl->pwt.chroma_weight[refn1][1][0][1]); 448 chroma_weight_avg(dest_cr, tmp_cr, sl->mb_uvlinesize, chroma_height, 449 sl->pwt.chroma_log2_weight_denom, 450 sl->pwt.chroma_weight[refn0][0][1][0], 451 sl->pwt.chroma_weight[refn1][1][1][0], 452 sl->pwt.chroma_weight[refn0][0][1][1] + 453 sl->pwt.chroma_weight[refn1][1][1][1]); 454 } 455 } 456 } else { 457 int list = list1 ? 1 : 0; 458 int refn = sl->ref_cache[list][scan8[n]]; 459 H264Ref *ref = &sl->ref_list[list][refn]; 460 mc_dir_part(h, sl, ref, n, square, height, delta, list, 461 dest_y, dest_cb, dest_cr, x_offset, y_offset, 462 qpix_put, chroma_put, pixel_shift, chroma_idc); 463 464 luma_weight_op(dest_y, sl->mb_linesize, height, 465 sl->pwt.luma_log2_weight_denom, 466 sl->pwt.luma_weight[refn][list][0], 467 sl->pwt.luma_weight[refn][list][1]); 468 if (!CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) { 469 if (sl->pwt.use_weight_chroma) { 470 chroma_weight_op(dest_cb, sl->mb_uvlinesize, chroma_height, 471 sl->pwt.chroma_log2_weight_denom, 472 sl->pwt.chroma_weight[refn][list][0][0], 473 sl->pwt.chroma_weight[refn][list][0][1]); 474 chroma_weight_op(dest_cr, sl->mb_uvlinesize, chroma_height, 475 sl->pwt.chroma_log2_weight_denom, 476 sl->pwt.chroma_weight[refn][list][1][0], 477 sl->pwt.chroma_weight[refn][list][1][1]); 478 } 479 } 480 } 481} 482 483static av_always_inline void prefetch_motion(const H264Context *h, H264SliceContext *sl, 484 int list, int pixel_shift, 485 int chroma_idc) 486{ 487 /* fetch pixels for estimated mv 4 macroblocks ahead 488 * optimized for 64byte cache lines */ 489 const int refn = sl->ref_cache[list][scan8[0]]; 490 if (refn >= 0) { 491 const int mx = (sl->mv_cache[list][scan8[0]][0] >> 2) + 16 * sl->mb_x + 8; 492 const int my = (sl->mv_cache[list][scan8[0]][1] >> 2) + 16 * sl->mb_y; 493 uint8_t **src = sl->ref_list[list][refn].data; 494 int off = mx * (1<< pixel_shift) + 495 (my + (sl->mb_x & 3) * 4) * sl->mb_linesize + 496 (64 << pixel_shift); 497 h->vdsp.prefetch(src[0] + off, sl->linesize, 4); 498 if (chroma_idc == 3 /* yuv444 */) { 499 h->vdsp.prefetch(src[1] + off, sl->linesize, 4); 500 h->vdsp.prefetch(src[2] + off, sl->linesize, 4); 501 } else { 502 off= ((mx>>1)+64) * (1<<pixel_shift) + ((my>>1) + (sl->mb_x&7))*sl->uvlinesize; 503 h->vdsp.prefetch(src[1] + off, src[2] - src[1], 2); 504 } 505 } 506} 507 508static av_always_inline void xchg_mb_border(const H264Context *h, H264SliceContext *sl, 509 uint8_t *src_y, 510 uint8_t *src_cb, uint8_t *src_cr, 511 int linesize, int uvlinesize, 512 int xchg, int chroma444, 513 int simple, int pixel_shift) 514{ 515 int deblock_topleft; 516 int deblock_top; 517 int top_idx = 1; 518 uint8_t *top_border_m1; 519 uint8_t *top_border; 520 521 if (!simple && FRAME_MBAFF(h)) { 522 if (sl->mb_y & 1) { 523 if (!MB_MBAFF(sl)) 524 return; 525 } else { 526 top_idx = MB_MBAFF(sl) ? 0 : 1; 527 } 528 } 529 530 if (sl->deblocking_filter == 2) { 531 deblock_topleft = h->slice_table[sl->mb_xy - 1 - h->mb_stride] == sl->slice_num; 532 deblock_top = sl->top_type; 533 } else { 534 deblock_topleft = (sl->mb_x > 0); 535 deblock_top = (sl->mb_y > !!MB_FIELD(sl)); 536 } 537 538 src_y -= linesize + 1 + pixel_shift; 539 src_cb -= uvlinesize + 1 + pixel_shift; 540 src_cr -= uvlinesize + 1 + pixel_shift; 541 542 top_border_m1 = sl->top_borders[top_idx][sl->mb_x - 1]; 543 top_border = sl->top_borders[top_idx][sl->mb_x]; 544 545#define XCHG(a, b, xchg) \ 546 if (pixel_shift) { \ 547 if (xchg) { \ 548 AV_SWAP64(b + 0, a + 0); \ 549 AV_SWAP64(b + 8, a + 8); \ 550 } else { \ 551 AV_COPY128(b, a); \ 552 } \ 553 } else if (xchg) \ 554 AV_SWAP64(b, a); \ 555 else \ 556 AV_COPY64(b, a); 557 558 if (deblock_top) { 559 if (deblock_topleft) { 560 XCHG(top_border_m1 + (8 << pixel_shift), 561 src_y - (7 << pixel_shift), 1); 562 } 563 XCHG(top_border + (0 << pixel_shift), src_y + (1 << pixel_shift), xchg); 564 XCHG(top_border + (8 << pixel_shift), src_y + (9 << pixel_shift), 1); 565 if (sl->mb_x + 1 < h->mb_width) { 566 XCHG(sl->top_borders[top_idx][sl->mb_x + 1], 567 src_y + (17 << pixel_shift), 1); 568 } 569 if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) { 570 if (chroma444) { 571 if (deblock_topleft) { 572 XCHG(top_border_m1 + (24 << pixel_shift), src_cb - (7 << pixel_shift), 1); 573 XCHG(top_border_m1 + (40 << pixel_shift), src_cr - (7 << pixel_shift), 1); 574 } 575 XCHG(top_border + (16 << pixel_shift), src_cb + (1 << pixel_shift), xchg); 576 XCHG(top_border + (24 << pixel_shift), src_cb + (9 << pixel_shift), 1); 577 XCHG(top_border + (32 << pixel_shift), src_cr + (1 << pixel_shift), xchg); 578 XCHG(top_border + (40 << pixel_shift), src_cr + (9 << pixel_shift), 1); 579 if (sl->mb_x + 1 < h->mb_width) { 580 XCHG(sl->top_borders[top_idx][sl->mb_x + 1] + (16 << pixel_shift), src_cb + (17 << pixel_shift), 1); 581 XCHG(sl->top_borders[top_idx][sl->mb_x + 1] + (32 << pixel_shift), src_cr + (17 << pixel_shift), 1); 582 } 583 } else { 584 if (deblock_topleft) { 585 XCHG(top_border_m1 + (16 << pixel_shift), src_cb - (7 << pixel_shift), 1); 586 XCHG(top_border_m1 + (24 << pixel_shift), src_cr - (7 << pixel_shift), 1); 587 } 588 XCHG(top_border + (16 << pixel_shift), src_cb + 1 + pixel_shift, 1); 589 XCHG(top_border + (24 << pixel_shift), src_cr + 1 + pixel_shift, 1); 590 } 591 } 592 } 593} 594 595static av_always_inline int dctcoef_get(int16_t *mb, int high_bit_depth, 596 int index) 597{ 598 if (high_bit_depth) { 599 return AV_RN32A(((int32_t *)mb) + index); 600 } else 601 return AV_RN16A(mb + index); 602} 603 604static av_always_inline void dctcoef_set(int16_t *mb, int high_bit_depth, 605 int index, int value) 606{ 607 if (high_bit_depth) { 608 AV_WN32A(((int32_t *)mb) + index, value); 609 } else 610 AV_WN16A(mb + index, value); 611} 612 613static av_always_inline void hl_decode_mb_predict_luma(const H264Context *h, 614 H264SliceContext *sl, 615 int mb_type, int simple, 616 int transform_bypass, 617 int pixel_shift, 618 const int *block_offset, 619 int linesize, 620 uint8_t *dest_y, int p) 621{ 622 void (*idct_add)(uint8_t *dst, int16_t *block, int stride); 623 void (*idct_dc_add)(uint8_t *dst, int16_t *block, int stride); 624 int i; 625 int qscale = p == 0 ? sl->qscale : sl->chroma_qp[p - 1]; 626 block_offset += 16 * p; 627 if (IS_INTRA4x4(mb_type)) { 628 if (IS_8x8DCT(mb_type)) { 629 if (transform_bypass) { 630 idct_dc_add = 631 idct_add = h->h264dsp.h264_add_pixels8_clear; 632 } else { 633 idct_dc_add = h->h264dsp.h264_idct8_dc_add; 634 idct_add = h->h264dsp.h264_idct8_add; 635 } 636 for (i = 0; i < 16; i += 4) { 637 uint8_t *const ptr = dest_y + block_offset[i]; 638 const int dir = sl->intra4x4_pred_mode_cache[scan8[i]]; 639 if (transform_bypass && h->ps.sps->profile_idc == 244 && dir <= 1) { 640 if (h->x264_build < 151U) { 641 h->hpc.pred8x8l_add[dir](ptr, sl->mb + (i * 16 + p * 256 << pixel_shift), linesize); 642 } else 643 h->hpc.pred8x8l_filter_add[dir](ptr, sl->mb + (i * 16 + p * 256 << pixel_shift), 644 (sl-> topleft_samples_available << i) & 0x8000, 645 (sl->topright_samples_available << i) & 0x4000, linesize); 646 } else { 647 const int nnz = sl->non_zero_count_cache[scan8[i + p * 16]]; 648 h->hpc.pred8x8l[dir](ptr, (sl->topleft_samples_available << i) & 0x8000, 649 (sl->topright_samples_available << i) & 0x4000, linesize); 650 if (nnz) { 651 if (nnz == 1 && dctcoef_get(sl->mb, pixel_shift, i * 16 + p * 256)) 652 idct_dc_add(ptr, sl->mb + (i * 16 + p * 256 << pixel_shift), linesize); 653 else 654 idct_add(ptr, sl->mb + (i * 16 + p * 256 << pixel_shift), linesize); 655 } 656 } 657 } 658 } else { 659 if (transform_bypass) { 660 idct_dc_add = 661 idct_add = h->h264dsp.h264_add_pixels4_clear; 662 } else { 663 idct_dc_add = h->h264dsp.h264_idct_dc_add; 664 idct_add = h->h264dsp.h264_idct_add; 665 } 666 for (i = 0; i < 16; i++) { 667 uint8_t *const ptr = dest_y + block_offset[i]; 668 const int dir = sl->intra4x4_pred_mode_cache[scan8[i]]; 669 670 if (transform_bypass && h->ps.sps->profile_idc == 244 && dir <= 1) { 671 h->hpc.pred4x4_add[dir](ptr, sl->mb + (i * 16 + p * 256 << pixel_shift), linesize); 672 } else { 673 uint8_t *topright; 674 int nnz, tr; 675 uint64_t tr_high; 676 if (dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED) { 677 const int topright_avail = (sl->topright_samples_available << i) & 0x8000; 678 av_assert2(sl->mb_y || linesize <= block_offset[i]); 679 if (!topright_avail) { 680 if (pixel_shift) { 681 tr_high = ((uint16_t *)ptr)[3 - linesize / 2] * 0x0001000100010001ULL; 682 topright = (uint8_t *)&tr_high; 683 } else { 684 tr = ptr[3 - linesize] * 0x01010101u; 685 topright = (uint8_t *)&tr; 686 } 687 } else 688 topright = ptr + (4 << pixel_shift) - linesize; 689 } else 690 topright = NULL; 691 692 h->hpc.pred4x4[dir](ptr, topright, linesize); 693 nnz = sl->non_zero_count_cache[scan8[i + p * 16]]; 694 if (nnz) { 695 if (nnz == 1 && dctcoef_get(sl->mb, pixel_shift, i * 16 + p * 256)) 696 idct_dc_add(ptr, sl->mb + (i * 16 + p * 256 << pixel_shift), linesize); 697 else 698 idct_add(ptr, sl->mb + (i * 16 + p * 256 << pixel_shift), linesize); 699 } 700 } 701 } 702 } 703 } else { 704 h->hpc.pred16x16[sl->intra16x16_pred_mode](dest_y, linesize); 705 if (sl->non_zero_count_cache[scan8[LUMA_DC_BLOCK_INDEX + p]]) { 706 if (!transform_bypass) 707 h->h264dsp.h264_luma_dc_dequant_idct(sl->mb + (p * 256 << pixel_shift), 708 sl->mb_luma_dc[p], 709 h->ps.pps->dequant4_coeff[p][qscale][0]); 710 else { 711 static const uint8_t dc_mapping[16] = { 712 0 * 16, 1 * 16, 4 * 16, 5 * 16, 713 2 * 16, 3 * 16, 6 * 16, 7 * 16, 714 8 * 16, 9 * 16, 12 * 16, 13 * 16, 715 10 * 16, 11 * 16, 14 * 16, 15 * 16 716 }; 717 for (i = 0; i < 16; i++) 718 dctcoef_set(sl->mb + (p * 256 << pixel_shift), 719 pixel_shift, dc_mapping[i], 720 dctcoef_get(sl->mb_luma_dc[p], 721 pixel_shift, i)); 722 } 723 } 724 } 725} 726 727static av_always_inline void hl_decode_mb_idct_luma(const H264Context *h, H264SliceContext *sl, 728 int mb_type, int simple, 729 int transform_bypass, 730 int pixel_shift, 731 const int *block_offset, 732 int linesize, 733 uint8_t *dest_y, int p) 734{ 735 void (*idct_add)(uint8_t *dst, int16_t *block, int stride); 736 int i; 737 block_offset += 16 * p; 738 if (!IS_INTRA4x4(mb_type)) { 739 if (IS_INTRA16x16(mb_type)) { 740 if (transform_bypass) { 741 if (h->ps.sps->profile_idc == 244 && 742 (sl->intra16x16_pred_mode == VERT_PRED8x8 || 743 sl->intra16x16_pred_mode == HOR_PRED8x8)) { 744 h->hpc.pred16x16_add[sl->intra16x16_pred_mode](dest_y, block_offset, 745 sl->mb + (p * 256 << pixel_shift), 746 linesize); 747 } else { 748 for (i = 0; i < 16; i++) 749 if (sl->non_zero_count_cache[scan8[i + p * 16]] || 750 dctcoef_get(sl->mb, pixel_shift, i * 16 + p * 256)) 751 h->h264dsp.h264_add_pixels4_clear(dest_y + block_offset[i], 752 sl->mb + (i * 16 + p * 256 << pixel_shift), 753 linesize); 754 } 755 } else { 756 h->h264dsp.h264_idct_add16intra(dest_y, block_offset, 757 sl->mb + (p * 256 << pixel_shift), 758 linesize, 759 sl->non_zero_count_cache + p * 5 * 8); 760 } 761 } else if (sl->cbp & 15) { 762 if (transform_bypass) { 763 const int di = IS_8x8DCT(mb_type) ? 4 : 1; 764 idct_add = IS_8x8DCT(mb_type) ? h->h264dsp.h264_add_pixels8_clear 765 : h->h264dsp.h264_add_pixels4_clear; 766 for (i = 0; i < 16; i += di) 767 if (sl->non_zero_count_cache[scan8[i + p * 16]]) 768 idct_add(dest_y + block_offset[i], 769 sl->mb + (i * 16 + p * 256 << pixel_shift), 770 linesize); 771 } else { 772 if (IS_8x8DCT(mb_type)) 773 h->h264dsp.h264_idct8_add4(dest_y, block_offset, 774 sl->mb + (p * 256 << pixel_shift), 775 linesize, 776 sl->non_zero_count_cache + p * 5 * 8); 777 else 778 h->h264dsp.h264_idct_add16(dest_y, block_offset, 779 sl->mb + (p * 256 << pixel_shift), 780 linesize, 781 sl->non_zero_count_cache + p * 5 * 8); 782 } 783 } 784 } 785} 786 787#define BITS 8 788#define SIMPLE 1 789#include "h264_mb_template.c" 790 791#undef BITS 792#define BITS 16 793#include "h264_mb_template.c" 794 795#undef SIMPLE 796#define SIMPLE 0 797#include "h264_mb_template.c" 798 799void ff_h264_hl_decode_mb(const H264Context *h, H264SliceContext *sl) 800{ 801 const int mb_xy = sl->mb_xy; 802 const int mb_type = h->cur_pic.mb_type[mb_xy]; 803 int is_complex = CONFIG_SMALL || sl->is_complex || 804 IS_INTRA_PCM(mb_type) || sl->qscale == 0; 805 806 if (CHROMA444(h)) { 807 if (is_complex || h->pixel_shift) 808 hl_decode_mb_444_complex(h, sl); 809 else 810 hl_decode_mb_444_simple_8(h, sl); 811 } else if (is_complex) { 812 hl_decode_mb_complex(h, sl); 813 } else if (h->pixel_shift) { 814 hl_decode_mb_simple_16(h, sl); 815 } else 816 hl_decode_mb_simple_8(h, sl); 817} 818