1/* 2 * Error resilience / concealment 3 * 4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> 5 * 6 * This file is part of FFmpeg. 7 * 8 * FFmpeg is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Lesser General Public 10 * License as published by the Free Software Foundation; either 11 * version 2.1 of the License, or (at your option) any later version. 12 * 13 * FFmpeg 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 GNU 16 * Lesser General Public License for more details. 17 * 18 * You should have received a copy of the GNU Lesser General Public 19 * License along with FFmpeg; if not, write to the Free Software 20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 21 */ 22 23/** 24 * @file 25 * Error resilience / concealment. 26 */ 27 28#include <limits.h> 29 30#include "libavutil/internal.h" 31#include "avcodec.h" 32#include "error_resilience.h" 33#include "me_cmp.h" 34#include "mpegutils.h" 35#include "mpegvideo.h" 36#include "rectangle.h" 37#include "threadframe.h" 38 39/** 40 * @param stride the number of MVs to get to the next row 41 * @param mv_step the number of MVs per row or column in a macroblock 42 */ 43static void set_mv_strides(ERContext *s, ptrdiff_t *mv_step, ptrdiff_t *stride) 44{ 45 if (s->avctx->codec_id == AV_CODEC_ID_H264) { 46 av_assert0(s->quarter_sample); 47 *mv_step = 4; 48 *stride = s->mb_width * 4; 49 } else { 50 *mv_step = 2; 51 *stride = s->b8_stride; 52 } 53} 54 55/** 56 * Replace the current MB with a flat dc-only version. 57 */ 58static void put_dc(ERContext *s, uint8_t *dest_y, uint8_t *dest_cb, 59 uint8_t *dest_cr, int mb_x, int mb_y) 60{ 61 int *linesize = s->cur_pic.f->linesize; 62 int dc, dcu, dcv, y, i; 63 for (i = 0; i < 4; i++) { 64 dc = s->dc_val[0][mb_x * 2 + (i & 1) + (mb_y * 2 + (i >> 1)) * s->b8_stride]; 65 if (dc < 0) 66 dc = 0; 67 else if (dc > 2040) 68 dc = 2040; 69 for (y = 0; y < 8; y++) { 70 int x; 71 for (x = 0; x < 8; x++) 72 dest_y[x + (i & 1) * 8 + (y + (i >> 1) * 8) * linesize[0]] = dc / 8; 73 } 74 } 75 dcu = s->dc_val[1][mb_x + mb_y * s->mb_stride]; 76 dcv = s->dc_val[2][mb_x + mb_y * s->mb_stride]; 77 if (dcu < 0) 78 dcu = 0; 79 else if (dcu > 2040) 80 dcu = 2040; 81 if (dcv < 0) 82 dcv = 0; 83 else if (dcv > 2040) 84 dcv = 2040; 85 86 if (dest_cr) 87 for (y = 0; y < 8; y++) { 88 int x; 89 for (x = 0; x < 8; x++) { 90 dest_cb[x + y * linesize[1]] = dcu / 8; 91 dest_cr[x + y * linesize[2]] = dcv / 8; 92 } 93 } 94} 95 96static void filter181(int16_t *data, int width, int height, ptrdiff_t stride) 97{ 98 int x, y; 99 100 /* horizontal filter */ 101 for (y = 1; y < height - 1; y++) { 102 int prev_dc = data[0 + y * stride]; 103 104 for (x = 1; x < width - 1; x++) { 105 int dc; 106 dc = -prev_dc + 107 data[x + y * stride] * 8 - 108 data[x + 1 + y * stride]; 109 dc = (av_clip(dc, INT_MIN/10923, INT_MAX/10923 - 32768) * 10923 + 32768) >> 16; 110 prev_dc = data[x + y * stride]; 111 data[x + y * stride] = dc; 112 } 113 } 114 115 /* vertical filter */ 116 for (x = 1; x < width - 1; x++) { 117 int prev_dc = data[x]; 118 119 for (y = 1; y < height - 1; y++) { 120 int dc; 121 122 dc = -prev_dc + 123 data[x + y * stride] * 8 - 124 data[x + (y + 1) * stride]; 125 dc = (av_clip(dc, INT_MIN/10923, INT_MAX/10923 - 32768) * 10923 + 32768) >> 16; 126 prev_dc = data[x + y * stride]; 127 data[x + y * stride] = dc; 128 } 129 } 130} 131 132/** 133 * guess the dc of blocks which do not have an undamaged dc 134 * @param w width in 8 pixel blocks 135 * @param h height in 8 pixel blocks 136 */ 137static void guess_dc(ERContext *s, int16_t *dc, int w, 138 int h, ptrdiff_t stride, int is_luma) 139{ 140 int b_x, b_y; 141 int16_t (*col )[4] = av_malloc_array(stride, h*sizeof( int16_t)*4); 142 uint32_t (*dist)[4] = av_malloc_array(stride, h*sizeof(uint32_t)*4); 143 144 if(!col || !dist) { 145 av_log(s->avctx, AV_LOG_ERROR, "guess_dc() is out of memory\n"); 146 goto fail; 147 } 148 149 for(b_y=0; b_y<h; b_y++){ 150 int color= 1024; 151 int distance= -1; 152 for(b_x=0; b_x<w; b_x++){ 153 int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride; 154 int error_j= s->error_status_table[mb_index_j]; 155 int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]); 156 if(intra_j==0 || !(error_j&ER_DC_ERROR)){ 157 color= dc[b_x + b_y*stride]; 158 distance= b_x; 159 } 160 col [b_x + b_y*stride][1]= color; 161 dist[b_x + b_y*stride][1]= distance >= 0 ? b_x-distance : 9999; 162 } 163 color= 1024; 164 distance= -1; 165 for(b_x=w-1; b_x>=0; b_x--){ 166 int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride; 167 int error_j= s->error_status_table[mb_index_j]; 168 int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]); 169 if(intra_j==0 || !(error_j&ER_DC_ERROR)){ 170 color= dc[b_x + b_y*stride]; 171 distance= b_x; 172 } 173 col [b_x + b_y*stride][0]= color; 174 dist[b_x + b_y*stride][0]= distance >= 0 ? distance-b_x : 9999; 175 } 176 } 177 for(b_x=0; b_x<w; b_x++){ 178 int color= 1024; 179 int distance= -1; 180 for(b_y=0; b_y<h; b_y++){ 181 int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride; 182 int error_j= s->error_status_table[mb_index_j]; 183 int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]); 184 if(intra_j==0 || !(error_j&ER_DC_ERROR)){ 185 color= dc[b_x + b_y*stride]; 186 distance= b_y; 187 } 188 col [b_x + b_y*stride][3]= color; 189 dist[b_x + b_y*stride][3]= distance >= 0 ? b_y-distance : 9999; 190 } 191 color= 1024; 192 distance= -1; 193 for(b_y=h-1; b_y>=0; b_y--){ 194 int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride; 195 int error_j= s->error_status_table[mb_index_j]; 196 int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]); 197 if(intra_j==0 || !(error_j&ER_DC_ERROR)){ 198 color= dc[b_x + b_y*stride]; 199 distance= b_y; 200 } 201 col [b_x + b_y*stride][2]= color; 202 dist[b_x + b_y*stride][2]= distance >= 0 ? distance-b_y : 9999; 203 } 204 } 205 206 for (b_y = 0; b_y < h; b_y++) { 207 for (b_x = 0; b_x < w; b_x++) { 208 int mb_index, error, j; 209 int64_t guess, weight_sum; 210 mb_index = (b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride; 211 error = s->error_status_table[mb_index]; 212 213 if (IS_INTER(s->cur_pic.mb_type[mb_index])) 214 continue; // inter 215 if (!(error & ER_DC_ERROR)) 216 continue; // dc-ok 217 218 weight_sum = 0; 219 guess = 0; 220 for (j = 0; j < 4; j++) { 221 int64_t weight = 256 * 256 * 256 * 16 / FFMAX(dist[b_x + b_y*stride][j], 1); 222 guess += weight*(int64_t)col[b_x + b_y*stride][j]; 223 weight_sum += weight; 224 } 225 guess = (guess + weight_sum / 2) / weight_sum; 226 dc[b_x + b_y * stride] = guess; 227 } 228 } 229 230fail: 231 av_freep(&col); 232 av_freep(&dist); 233} 234 235/** 236 * simple horizontal deblocking filter used for error resilience 237 * @param w width in 8 pixel blocks 238 * @param h height in 8 pixel blocks 239 */ 240static void h_block_filter(ERContext *s, uint8_t *dst, int w, 241 int h, ptrdiff_t stride, int is_luma) 242{ 243 int b_x, b_y; 244 ptrdiff_t mvx_stride, mvy_stride; 245 const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP; 246 set_mv_strides(s, &mvx_stride, &mvy_stride); 247 mvx_stride >>= is_luma; 248 mvy_stride *= mvx_stride; 249 250 for (b_y = 0; b_y < h; b_y++) { 251 for (b_x = 0; b_x < w - 1; b_x++) { 252 int y; 253 int left_status = s->error_status_table[( b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride]; 254 int right_status = s->error_status_table[((b_x + 1) >> is_luma) + (b_y >> is_luma) * s->mb_stride]; 255 int left_intra = IS_INTRA(s->cur_pic.mb_type[( b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride]); 256 int right_intra = IS_INTRA(s->cur_pic.mb_type[((b_x + 1) >> is_luma) + (b_y >> is_luma) * s->mb_stride]); 257 int left_damage = left_status & ER_MB_ERROR; 258 int right_damage = right_status & ER_MB_ERROR; 259 int offset = b_x * 8 + b_y * stride * 8; 260 int16_t *left_mv = s->cur_pic.motion_val[0][mvy_stride * b_y + mvx_stride * b_x]; 261 int16_t *right_mv = s->cur_pic.motion_val[0][mvy_stride * b_y + mvx_stride * (b_x + 1)]; 262 if (!(left_damage || right_damage)) 263 continue; // both undamaged 264 if ((!left_intra) && (!right_intra) && 265 FFABS(left_mv[0] - right_mv[0]) + 266 FFABS(left_mv[1] + right_mv[1]) < 2) 267 continue; 268 269 for (y = 0; y < 8; y++) { 270 int a, b, c, d; 271 272 a = dst[offset + 7 + y * stride] - dst[offset + 6 + y * stride]; 273 b = dst[offset + 8 + y * stride] - dst[offset + 7 + y * stride]; 274 c = dst[offset + 9 + y * stride] - dst[offset + 8 + y * stride]; 275 276 d = FFABS(b) - ((FFABS(a) + FFABS(c) + 1) >> 1); 277 d = FFMAX(d, 0); 278 if (b < 0) 279 d = -d; 280 281 if (d == 0) 282 continue; 283 284 if (!(left_damage && right_damage)) 285 d = d * 16 / 9; 286 287 if (left_damage) { 288 dst[offset + 7 + y * stride] = cm[dst[offset + 7 + y * stride] + ((d * 7) >> 4)]; 289 dst[offset + 6 + y * stride] = cm[dst[offset + 6 + y * stride] + ((d * 5) >> 4)]; 290 dst[offset + 5 + y * stride] = cm[dst[offset + 5 + y * stride] + ((d * 3) >> 4)]; 291 dst[offset + 4 + y * stride] = cm[dst[offset + 4 + y * stride] + ((d * 1) >> 4)]; 292 } 293 if (right_damage) { 294 dst[offset + 8 + y * stride] = cm[dst[offset + 8 + y * stride] - ((d * 7) >> 4)]; 295 dst[offset + 9 + y * stride] = cm[dst[offset + 9 + y * stride] - ((d * 5) >> 4)]; 296 dst[offset + 10+ y * stride] = cm[dst[offset + 10 + y * stride] - ((d * 3) >> 4)]; 297 dst[offset + 11+ y * stride] = cm[dst[offset + 11 + y * stride] - ((d * 1) >> 4)]; 298 } 299 } 300 } 301 } 302} 303 304/** 305 * simple vertical deblocking filter used for error resilience 306 * @param w width in 8 pixel blocks 307 * @param h height in 8 pixel blocks 308 */ 309static void v_block_filter(ERContext *s, uint8_t *dst, int w, int h, 310 ptrdiff_t stride, int is_luma) 311{ 312 int b_x, b_y; 313 ptrdiff_t mvx_stride, mvy_stride; 314 const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP; 315 set_mv_strides(s, &mvx_stride, &mvy_stride); 316 mvx_stride >>= is_luma; 317 mvy_stride *= mvx_stride; 318 319 for (b_y = 0; b_y < h - 1; b_y++) { 320 for (b_x = 0; b_x < w; b_x++) { 321 int x; 322 int top_status = s->error_status_table[(b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride]; 323 int bottom_status = s->error_status_table[(b_x >> is_luma) + ((b_y + 1) >> is_luma) * s->mb_stride]; 324 int top_intra = IS_INTRA(s->cur_pic.mb_type[(b_x >> is_luma) + ( b_y >> is_luma) * s->mb_stride]); 325 int bottom_intra = IS_INTRA(s->cur_pic.mb_type[(b_x >> is_luma) + ((b_y + 1) >> is_luma) * s->mb_stride]); 326 int top_damage = top_status & ER_MB_ERROR; 327 int bottom_damage = bottom_status & ER_MB_ERROR; 328 int offset = b_x * 8 + b_y * stride * 8; 329 330 int16_t *top_mv = s->cur_pic.motion_val[0][mvy_stride * b_y + mvx_stride * b_x]; 331 int16_t *bottom_mv = s->cur_pic.motion_val[0][mvy_stride * (b_y + 1) + mvx_stride * b_x]; 332 333 if (!(top_damage || bottom_damage)) 334 continue; // both undamaged 335 336 if ((!top_intra) && (!bottom_intra) && 337 FFABS(top_mv[0] - bottom_mv[0]) + 338 FFABS(top_mv[1] + bottom_mv[1]) < 2) 339 continue; 340 341 for (x = 0; x < 8; x++) { 342 int a, b, c, d; 343 344 a = dst[offset + x + 7 * stride] - dst[offset + x + 6 * stride]; 345 b = dst[offset + x + 8 * stride] - dst[offset + x + 7 * stride]; 346 c = dst[offset + x + 9 * stride] - dst[offset + x + 8 * stride]; 347 348 d = FFABS(b) - ((FFABS(a) + FFABS(c) + 1) >> 1); 349 d = FFMAX(d, 0); 350 if (b < 0) 351 d = -d; 352 353 if (d == 0) 354 continue; 355 356 if (!(top_damage && bottom_damage)) 357 d = d * 16 / 9; 358 359 if (top_damage) { 360 dst[offset + x + 7 * stride] = cm[dst[offset + x + 7 * stride] + ((d * 7) >> 4)]; 361 dst[offset + x + 6 * stride] = cm[dst[offset + x + 6 * stride] + ((d * 5) >> 4)]; 362 dst[offset + x + 5 * stride] = cm[dst[offset + x + 5 * stride] + ((d * 3) >> 4)]; 363 dst[offset + x + 4 * stride] = cm[dst[offset + x + 4 * stride] + ((d * 1) >> 4)]; 364 } 365 if (bottom_damage) { 366 dst[offset + x + 8 * stride] = cm[dst[offset + x + 8 * stride] - ((d * 7) >> 4)]; 367 dst[offset + x + 9 * stride] = cm[dst[offset + x + 9 * stride] - ((d * 5) >> 4)]; 368 dst[offset + x + 10 * stride] = cm[dst[offset + x + 10 * stride] - ((d * 3) >> 4)]; 369 dst[offset + x + 11 * stride] = cm[dst[offset + x + 11 * stride] - ((d * 1) >> 4)]; 370 } 371 } 372 } 373 } 374} 375 376#define MV_FROZEN 8 377#define MV_CHANGED 4 378#define MV_UNCHANGED 2 379#define MV_LISTED 1 380static av_always_inline void add_blocklist(int (*blocklist)[2], int *blocklist_length, uint8_t *fixed, int mb_x, int mb_y, int mb_xy) 381{ 382 if (fixed[mb_xy]) 383 return; 384 fixed[mb_xy] = MV_LISTED; 385 blocklist[ *blocklist_length ][0] = mb_x; 386 blocklist[(*blocklist_length)++][1] = mb_y; 387} 388 389static void guess_mv(ERContext *s) 390{ 391 int (*blocklist)[2], (*next_blocklist)[2]; 392 uint8_t *fixed; 393 const ptrdiff_t mb_stride = s->mb_stride; 394 const int mb_width = s->mb_width; 395 int mb_height = s->mb_height; 396 int i, depth, num_avail; 397 int mb_x, mb_y; 398 ptrdiff_t mot_step, mot_stride; 399 int blocklist_length, next_blocklist_length; 400 401 if (s->last_pic.f && s->last_pic.f->data[0]) 402 mb_height = FFMIN(mb_height, (s->last_pic.f->height+15)>>4); 403 if (s->next_pic.f && s->next_pic.f->data[0]) 404 mb_height = FFMIN(mb_height, (s->next_pic.f->height+15)>>4); 405 406 blocklist = (int (*)[2])s->er_temp_buffer; 407 next_blocklist = blocklist + s->mb_stride * s->mb_height; 408 fixed = (uint8_t *)(next_blocklist + s->mb_stride * s->mb_height); 409 410 set_mv_strides(s, &mot_step, &mot_stride); 411 412 num_avail = 0; 413 if (s->last_pic.motion_val[0]) 414 ff_thread_await_progress(s->last_pic.tf, mb_height-1, 0); 415 for (i = 0; i < mb_width * mb_height; i++) { 416 const int mb_xy = s->mb_index2xy[i]; 417 int f = 0; 418 int error = s->error_status_table[mb_xy]; 419 420 if (IS_INTRA(s->cur_pic.mb_type[mb_xy])) 421 f = MV_FROZEN; // intra // FIXME check 422 if (!(error & ER_MV_ERROR)) 423 f = MV_FROZEN; // inter with undamaged MV 424 425 fixed[mb_xy] = f; 426 if (f == MV_FROZEN) 427 num_avail++; 428 else if(s->last_pic.f->data[0] && s->last_pic.motion_val[0]){ 429 const int mb_y= mb_xy / s->mb_stride; 430 const int mb_x= mb_xy % s->mb_stride; 431 const int mot_index= (mb_x + mb_y*mot_stride) * mot_step; 432 s->cur_pic.motion_val[0][mot_index][0]= s->last_pic.motion_val[0][mot_index][0]; 433 s->cur_pic.motion_val[0][mot_index][1]= s->last_pic.motion_val[0][mot_index][1]; 434 s->cur_pic.ref_index[0][4*mb_xy] = s->last_pic.ref_index[0][4*mb_xy]; 435 } 436 } 437 438 if ((!(s->avctx->error_concealment&FF_EC_GUESS_MVS)) || 439 num_avail <= FFMAX(mb_width, mb_height) / 2) { 440 for (mb_y = 0; mb_y < mb_height; mb_y++) { 441 for (mb_x = 0; mb_x < s->mb_width; mb_x++) { 442 const int mb_xy = mb_x + mb_y * s->mb_stride; 443 int mv_dir = (s->last_pic.f && s->last_pic.f->data[0]) ? MV_DIR_FORWARD : MV_DIR_BACKWARD; 444 445 if (IS_INTRA(s->cur_pic.mb_type[mb_xy])) 446 continue; 447 if (!(s->error_status_table[mb_xy] & ER_MV_ERROR)) 448 continue; 449 450 s->mv[0][0][0] = 0; 451 s->mv[0][0][1] = 0; 452 s->decode_mb(s->opaque, 0, mv_dir, MV_TYPE_16X16, &s->mv, 453 mb_x, mb_y, 0, 0); 454 } 455 } 456 return; 457 } 458 459 blocklist_length = 0; 460 for (mb_y = 0; mb_y < mb_height; mb_y++) { 461 for (mb_x = 0; mb_x < mb_width; mb_x++) { 462 const int mb_xy = mb_x + mb_y * mb_stride; 463 if (fixed[mb_xy] == MV_FROZEN) { 464 if (mb_x) add_blocklist(blocklist, &blocklist_length, fixed, mb_x - 1, mb_y, mb_xy - 1); 465 if (mb_y) add_blocklist(blocklist, &blocklist_length, fixed, mb_x, mb_y - 1, mb_xy - mb_stride); 466 if (mb_x+1 < mb_width) add_blocklist(blocklist, &blocklist_length, fixed, mb_x + 1, mb_y, mb_xy + 1); 467 if (mb_y+1 < mb_height) add_blocklist(blocklist, &blocklist_length, fixed, mb_x, mb_y + 1, mb_xy + mb_stride); 468 } 469 } 470 } 471 472 for (depth = 0; ; depth++) { 473 int changed, pass, none_left; 474 int blocklist_index; 475 476 none_left = 1; 477 changed = 1; 478 for (pass = 0; (changed || pass < 2) && pass < 10; pass++) { 479 changed = 0; 480 for (blocklist_index = 0; blocklist_index < blocklist_length; blocklist_index++) { 481 const int mb_x = blocklist[blocklist_index][0]; 482 const int mb_y = blocklist[blocklist_index][1]; 483 const int mb_xy = mb_x + mb_y * mb_stride; 484 int mv_predictor[8][2]; 485 int ref[8]; 486 int pred_count; 487 int j; 488 int best_score; 489 int best_pred; 490 int mot_index; 491 int prev_x, prev_y, prev_ref; 492 493 if ((mb_x ^ mb_y ^ pass) & 1) 494 continue; 495 av_assert2(fixed[mb_xy] != MV_FROZEN); 496 497 498 av_assert1(!IS_INTRA(s->cur_pic.mb_type[mb_xy])); 499 av_assert1(s->last_pic.f && s->last_pic.f->data[0]); 500 501 j = 0; 502 if (mb_x > 0) 503 j |= fixed[mb_xy - 1]; 504 if (mb_x + 1 < mb_width) 505 j |= fixed[mb_xy + 1]; 506 if (mb_y > 0) 507 j |= fixed[mb_xy - mb_stride]; 508 if (mb_y + 1 < mb_height) 509 j |= fixed[mb_xy + mb_stride]; 510 511 av_assert2(j & MV_FROZEN); 512 513 if (!(j & MV_CHANGED) && pass > 1) 514 continue; 515 516 none_left = 0; 517 pred_count = 0; 518 mot_index = (mb_x + mb_y * mot_stride) * mot_step; 519 520 if (mb_x > 0 && fixed[mb_xy - 1] > 1) { 521 mv_predictor[pred_count][0] = 522 s->cur_pic.motion_val[0][mot_index - mot_step][0]; 523 mv_predictor[pred_count][1] = 524 s->cur_pic.motion_val[0][mot_index - mot_step][1]; 525 ref[pred_count] = 526 s->cur_pic.ref_index[0][4 * (mb_xy - 1)]; 527 pred_count++; 528 } 529 if (mb_x + 1 < mb_width && fixed[mb_xy + 1] > 1) { 530 mv_predictor[pred_count][0] = 531 s->cur_pic.motion_val[0][mot_index + mot_step][0]; 532 mv_predictor[pred_count][1] = 533 s->cur_pic.motion_val[0][mot_index + mot_step][1]; 534 ref[pred_count] = 535 s->cur_pic.ref_index[0][4 * (mb_xy + 1)]; 536 pred_count++; 537 } 538 if (mb_y > 0 && fixed[mb_xy - mb_stride] > 1) { 539 mv_predictor[pred_count][0] = 540 s->cur_pic.motion_val[0][mot_index - mot_stride * mot_step][0]; 541 mv_predictor[pred_count][1] = 542 s->cur_pic.motion_val[0][mot_index - mot_stride * mot_step][1]; 543 ref[pred_count] = 544 s->cur_pic.ref_index[0][4 * (mb_xy - s->mb_stride)]; 545 pred_count++; 546 } 547 if (mb_y + 1<mb_height && fixed[mb_xy + mb_stride] > 1) { 548 mv_predictor[pred_count][0] = 549 s->cur_pic.motion_val[0][mot_index + mot_stride * mot_step][0]; 550 mv_predictor[pred_count][1] = 551 s->cur_pic.motion_val[0][mot_index + mot_stride * mot_step][1]; 552 ref[pred_count] = 553 s->cur_pic.ref_index[0][4 * (mb_xy + s->mb_stride)]; 554 pred_count++; 555 } 556 if (pred_count == 0) 557 continue; 558 559 if (pred_count > 1) { 560 int sum_x = 0, sum_y = 0, sum_r = 0; 561 int max_x, max_y, min_x, min_y, max_r, min_r; 562 563 for (j = 0; j < pred_count; j++) { 564 sum_x += mv_predictor[j][0]; 565 sum_y += mv_predictor[j][1]; 566 sum_r += ref[j]; 567 if (j && ref[j] != ref[j - 1]) 568 goto skip_mean_and_median; 569 } 570 571 /* mean */ 572 mv_predictor[pred_count][0] = sum_x / j; 573 mv_predictor[pred_count][1] = sum_y / j; 574 ref[pred_count] = sum_r / j; 575 576 /* median */ 577 if (pred_count >= 3) { 578 min_y = min_x = min_r = 99999; 579 max_y = max_x = max_r = -99999; 580 } else { 581 min_x = min_y = max_x = max_y = min_r = max_r = 0; 582 } 583 for (j = 0; j < pred_count; j++) { 584 max_x = FFMAX(max_x, mv_predictor[j][0]); 585 max_y = FFMAX(max_y, mv_predictor[j][1]); 586 max_r = FFMAX(max_r, ref[j]); 587 min_x = FFMIN(min_x, mv_predictor[j][0]); 588 min_y = FFMIN(min_y, mv_predictor[j][1]); 589 min_r = FFMIN(min_r, ref[j]); 590 } 591 mv_predictor[pred_count + 1][0] = sum_x - max_x - min_x; 592 mv_predictor[pred_count + 1][1] = sum_y - max_y - min_y; 593 ref[pred_count + 1] = sum_r - max_r - min_r; 594 595 if (pred_count == 4) { 596 mv_predictor[pred_count + 1][0] /= 2; 597 mv_predictor[pred_count + 1][1] /= 2; 598 ref[pred_count + 1] /= 2; 599 } 600 pred_count += 2; 601 } 602 603skip_mean_and_median: 604 /* zero MV */ 605 mv_predictor[pred_count][0] = 606 mv_predictor[pred_count][1] = 607 ref[pred_count] = 0; 608 pred_count++; 609 610 prev_x = s->cur_pic.motion_val[0][mot_index][0]; 611 prev_y = s->cur_pic.motion_val[0][mot_index][1]; 612 prev_ref = s->cur_pic.ref_index[0][4 * mb_xy]; 613 614 /* last MV */ 615 mv_predictor[pred_count][0] = prev_x; 616 mv_predictor[pred_count][1] = prev_y; 617 ref[pred_count] = prev_ref; 618 pred_count++; 619 620 best_pred = 0; 621 best_score = 256 * 256 * 256 * 64; 622 for (j = 0; j < pred_count; j++) { 623 int *linesize = s->cur_pic.f->linesize; 624 int score = 0; 625 uint8_t *src = s->cur_pic.f->data[0] + 626 mb_x * 16 + mb_y * 16 * linesize[0]; 627 628 s->cur_pic.motion_val[0][mot_index][0] = 629 s->mv[0][0][0] = mv_predictor[j][0]; 630 s->cur_pic.motion_val[0][mot_index][1] = 631 s->mv[0][0][1] = mv_predictor[j][1]; 632 633 // predictor intra or otherwise not available 634 if (ref[j] < 0) 635 continue; 636 637 s->decode_mb(s->opaque, ref[j], MV_DIR_FORWARD, 638 MV_TYPE_16X16, &s->mv, mb_x, mb_y, 0, 0); 639 640 if (mb_x > 0 && fixed[mb_xy - 1] > 1) { 641 int k; 642 for (k = 0; k < 16; k++) 643 score += FFABS(src[k * linesize[0] - 1] - 644 src[k * linesize[0]]); 645 } 646 if (mb_x + 1 < mb_width && fixed[mb_xy + 1] > 1) { 647 int k; 648 for (k = 0; k < 16; k++) 649 score += FFABS(src[k * linesize[0] + 15] - 650 src[k * linesize[0] + 16]); 651 } 652 if (mb_y > 0 && fixed[mb_xy - mb_stride] > 1) { 653 int k; 654 for (k = 0; k < 16; k++) 655 score += FFABS(src[k - linesize[0]] - src[k]); 656 } 657 if (mb_y + 1 < mb_height && fixed[mb_xy + mb_stride] > 1) { 658 int k; 659 for (k = 0; k < 16; k++) 660 score += FFABS(src[k + linesize[0] * 15] - 661 src[k + linesize[0] * 16]); 662 } 663 664 if (score <= best_score) { // <= will favor the last MV 665 best_score = score; 666 best_pred = j; 667 } 668 } 669 s->mv[0][0][0] = mv_predictor[best_pred][0]; 670 s->mv[0][0][1] = mv_predictor[best_pred][1]; 671 672 for (i = 0; i < mot_step; i++) 673 for (j = 0; j < mot_step; j++) { 674 s->cur_pic.motion_val[0][mot_index + i + j * mot_stride][0] = s->mv[0][0][0]; 675 s->cur_pic.motion_val[0][mot_index + i + j * mot_stride][1] = s->mv[0][0][1]; 676 } 677 678 s->decode_mb(s->opaque, ref[best_pred], MV_DIR_FORWARD, 679 MV_TYPE_16X16, &s->mv, mb_x, mb_y, 0, 0); 680 681 682 if (s->mv[0][0][0] != prev_x || s->mv[0][0][1] != prev_y) { 683 fixed[mb_xy] = MV_CHANGED; 684 changed++; 685 } else 686 fixed[mb_xy] = MV_UNCHANGED; 687 } 688 } 689 690 if (none_left) 691 return; 692 693 next_blocklist_length = 0; 694 695 for (blocklist_index = 0; blocklist_index < blocklist_length; blocklist_index++) { 696 const int mb_x = blocklist[blocklist_index][0]; 697 const int mb_y = blocklist[blocklist_index][1]; 698 const int mb_xy = mb_x + mb_y * mb_stride; 699 700 if (fixed[mb_xy] & (MV_CHANGED|MV_UNCHANGED|MV_FROZEN)) { 701 fixed[mb_xy] = MV_FROZEN; 702 if (mb_x > 0) 703 add_blocklist(next_blocklist, &next_blocklist_length, fixed, mb_x - 1, mb_y, mb_xy - 1); 704 if (mb_y > 0) 705 add_blocklist(next_blocklist, &next_blocklist_length, fixed, mb_x, mb_y - 1, mb_xy - mb_stride); 706 if (mb_x + 1 < mb_width) 707 add_blocklist(next_blocklist, &next_blocklist_length, fixed, mb_x + 1, mb_y, mb_xy + 1); 708 if (mb_y + 1 < mb_height) 709 add_blocklist(next_blocklist, &next_blocklist_length, fixed, mb_x, mb_y + 1, mb_xy + mb_stride); 710 } 711 } 712 av_assert0(next_blocklist_length <= mb_height * mb_width); 713 FFSWAP(int , blocklist_length, next_blocklist_length); 714 FFSWAP(void*, blocklist, next_blocklist); 715 } 716} 717 718static int is_intra_more_likely(ERContext *s) 719{ 720 int is_intra_likely, i, j, undamaged_count, skip_amount, mb_x, mb_y; 721 722 if (!s->last_pic.f || !s->last_pic.f->data[0]) 723 return 1; // no previous frame available -> use spatial prediction 724 725 if (s->avctx->error_concealment & FF_EC_FAVOR_INTER) 726 return 0; 727 728 undamaged_count = 0; 729 for (i = 0; i < s->mb_num; i++) { 730 const int mb_xy = s->mb_index2xy[i]; 731 const int error = s->error_status_table[mb_xy]; 732 if (!((error & ER_DC_ERROR) && (error & ER_MV_ERROR))) 733 undamaged_count++; 734 } 735 736 if (undamaged_count < 5) 737 return 0; // almost all MBs damaged -> use temporal prediction 738 739 skip_amount = FFMAX(undamaged_count / 50, 1); // check only up to 50 MBs 740 is_intra_likely = 0; 741 742 j = 0; 743 for (mb_y = 0; mb_y < s->mb_height - 1; mb_y++) { 744 for (mb_x = 0; mb_x < s->mb_width; mb_x++) { 745 int error; 746 const int mb_xy = mb_x + mb_y * s->mb_stride; 747 748 error = s->error_status_table[mb_xy]; 749 if ((error & ER_DC_ERROR) && (error & ER_MV_ERROR)) 750 continue; // skip damaged 751 752 j++; 753 // skip a few to speed things up 754 if ((j % skip_amount) != 0) 755 continue; 756 757 if (s->cur_pic.f->pict_type == AV_PICTURE_TYPE_I) { 758 int *linesize = s->cur_pic.f->linesize; 759 uint8_t *mb_ptr = s->cur_pic.f->data[0] + 760 mb_x * 16 + mb_y * 16 * linesize[0]; 761 uint8_t *last_mb_ptr = s->last_pic.f->data[0] + 762 mb_x * 16 + mb_y * 16 * linesize[0]; 763 764 if (s->avctx->codec_id == AV_CODEC_ID_H264) { 765 // FIXME 766 } else { 767 ff_thread_await_progress(s->last_pic.tf, mb_y, 0); 768 } 769 is_intra_likely += s->sad(NULL, last_mb_ptr, mb_ptr, 770 linesize[0], 16); 771 // FIXME need await_progress() here 772 is_intra_likely -= s->sad(NULL, last_mb_ptr, 773 last_mb_ptr + linesize[0] * 16, 774 linesize[0], 16); 775 } else { 776 if (IS_INTRA(s->cur_pic.mb_type[mb_xy])) 777 is_intra_likely++; 778 else 779 is_intra_likely--; 780 } 781 } 782 } 783// av_log(NULL, AV_LOG_ERROR, "is_intra_likely: %d type:%d\n", is_intra_likely, s->pict_type); 784 return is_intra_likely > 0; 785} 786 787void ff_er_frame_start(ERContext *s) 788{ 789 if (!s->avctx->error_concealment) 790 return; 791 792 if (!s->mecc_inited) { 793 MECmpContext mecc; 794 ff_me_cmp_init(&mecc, s->avctx); 795 s->sad = mecc.sad[0]; 796 s->mecc_inited = 1; 797 } 798 799 memset(s->error_status_table, ER_MB_ERROR | VP_START | ER_MB_END, 800 s->mb_stride * s->mb_height * sizeof(uint8_t)); 801 atomic_init(&s->error_count, 3 * s->mb_num); 802 s->error_occurred = 0; 803} 804 805static int er_supported(ERContext *s) 806{ 807 if(s->avctx->hwaccel && s->avctx->hwaccel->decode_slice || 808 !s->cur_pic.f || 809 s->cur_pic.field_picture 810 ) 811 return 0; 812 return 1; 813} 814 815/** 816 * Add a slice. 817 * @param endx x component of the last macroblock, can be -1 818 * for the last of the previous line 819 * @param status the status at the end (ER_MV_END, ER_AC_ERROR, ...), it is 820 * assumed that no earlier end or error of the same type occurred 821 */ 822void ff_er_add_slice(ERContext *s, int startx, int starty, 823 int endx, int endy, int status) 824{ 825 const int start_i = av_clip(startx + starty * s->mb_width, 0, s->mb_num - 1); 826 const int end_i = av_clip(endx + endy * s->mb_width, 0, s->mb_num); 827 const int start_xy = s->mb_index2xy[start_i]; 828 const int end_xy = s->mb_index2xy[end_i]; 829 int mask = -1; 830 831 if (s->avctx->hwaccel && s->avctx->hwaccel->decode_slice) 832 return; 833 834 if (start_i > end_i || start_xy > end_xy) { 835 av_log(s->avctx, AV_LOG_ERROR, 836 "internal error, slice end before start\n"); 837 return; 838 } 839 840 if (!s->avctx->error_concealment) 841 return; 842 843 mask &= ~VP_START; 844 if (status & (ER_AC_ERROR | ER_AC_END)) { 845 mask &= ~(ER_AC_ERROR | ER_AC_END); 846 atomic_fetch_add(&s->error_count, start_i - end_i - 1); 847 } 848 if (status & (ER_DC_ERROR | ER_DC_END)) { 849 mask &= ~(ER_DC_ERROR | ER_DC_END); 850 atomic_fetch_add(&s->error_count, start_i - end_i - 1); 851 } 852 if (status & (ER_MV_ERROR | ER_MV_END)) { 853 mask &= ~(ER_MV_ERROR | ER_MV_END); 854 atomic_fetch_add(&s->error_count, start_i - end_i - 1); 855 } 856 857 if (status & ER_MB_ERROR) { 858 s->error_occurred = 1; 859 atomic_store(&s->error_count, INT_MAX); 860 } 861 862 if (mask == ~0x7F) { 863 memset(&s->error_status_table[start_xy], 0, 864 (end_xy - start_xy) * sizeof(uint8_t)); 865 } else { 866 int i; 867 for (i = start_xy; i < end_xy; i++) 868 s->error_status_table[i] &= mask; 869 } 870 871 if (end_i == s->mb_num) 872 atomic_store(&s->error_count, INT_MAX); 873 else { 874 s->error_status_table[end_xy] &= mask; 875 s->error_status_table[end_xy] |= status; 876 } 877 878 s->error_status_table[start_xy] |= VP_START; 879 880 if (start_xy > 0 && !(s->avctx->active_thread_type & FF_THREAD_SLICE) && 881 er_supported(s) && s->avctx->skip_top * s->mb_width < start_i) { 882 int prev_status = s->error_status_table[s->mb_index2xy[start_i - 1]]; 883 884 prev_status &= ~ VP_START; 885 if (prev_status != (ER_MV_END | ER_DC_END | ER_AC_END)) { 886 s->error_occurred = 1; 887 atomic_store(&s->error_count, INT_MAX); 888 } 889 } 890} 891 892void ff_er_frame_end(ERContext *s) 893{ 894 int *linesize = NULL; 895 int i, mb_x, mb_y, error, error_type, dc_error, mv_error, ac_error; 896 int distance; 897 int threshold_part[4] = { 100, 100, 100 }; 898 int threshold = 50; 899 int is_intra_likely; 900 int size = s->b8_stride * 2 * s->mb_height; 901 902 /* We do not support ER of field pictures yet, 903 * though it should not crash if enabled. */ 904 if (!s->avctx->error_concealment || !atomic_load(&s->error_count) || 905 s->avctx->lowres || 906 !er_supported(s) || 907 atomic_load(&s->error_count) == 3 * s->mb_width * 908 (s->avctx->skip_top + s->avctx->skip_bottom)) { 909 return; 910 } 911 linesize = s->cur_pic.f->linesize; 912 913 if ( s->avctx->codec_id == AV_CODEC_ID_MPEG2VIDEO 914 && (FFALIGN(s->avctx->height, 16)&16) 915 && atomic_load(&s->error_count) == 3 * s->mb_width * (s->avctx->skip_top + s->avctx->skip_bottom + 1)) { 916 for (mb_x = 0; mb_x < s->mb_width; mb_x++) { 917 int status = s->error_status_table[mb_x + (s->mb_height - 1) * s->mb_stride]; 918 if (status != 0x7F) 919 break; 920 } 921 922 if (mb_x == s->mb_width) { 923 av_log(s->avctx, AV_LOG_DEBUG, "ignoring last missing slice\n"); 924 return; 925 } 926 } 927 928 if (s->last_pic.f) { 929 if (s->last_pic.f->width != s->cur_pic.f->width || 930 s->last_pic.f->height != s->cur_pic.f->height || 931 s->last_pic.f->format != s->cur_pic.f->format) { 932 av_log(s->avctx, AV_LOG_WARNING, "Cannot use previous picture in error concealment\n"); 933 memset(&s->last_pic, 0, sizeof(s->last_pic)); 934 } 935 } 936 if (s->next_pic.f) { 937 if (s->next_pic.f->width != s->cur_pic.f->width || 938 s->next_pic.f->height != s->cur_pic.f->height || 939 s->next_pic.f->format != s->cur_pic.f->format) { 940 av_log(s->avctx, AV_LOG_WARNING, "Cannot use next picture in error concealment\n"); 941 memset(&s->next_pic, 0, sizeof(s->next_pic)); 942 } 943 } 944 945 if (!s->cur_pic.motion_val[0] || !s->cur_pic.ref_index[0]) { 946 av_log(s->avctx, AV_LOG_ERROR, "Warning MVs not available\n"); 947 948 for (i = 0; i < 2; i++) { 949 s->ref_index_buf[i] = av_buffer_allocz(s->mb_stride * s->mb_height * 4 * sizeof(uint8_t)); 950 s->motion_val_buf[i] = av_buffer_allocz((size + 4) * 2 * sizeof(uint16_t)); 951 if (!s->ref_index_buf[i] || !s->motion_val_buf[i]) 952 break; 953 s->cur_pic.ref_index[i] = s->ref_index_buf[i]->data; 954 s->cur_pic.motion_val[i] = (int16_t (*)[2])s->motion_val_buf[i]->data + 4; 955 } 956 if (i < 2) { 957 for (i = 0; i < 2; i++) { 958 av_buffer_unref(&s->ref_index_buf[i]); 959 av_buffer_unref(&s->motion_val_buf[i]); 960 s->cur_pic.ref_index[i] = NULL; 961 s->cur_pic.motion_val[i] = NULL; 962 } 963 return; 964 } 965 } 966 967 if (s->avctx->debug & FF_DEBUG_ER) { 968 for (mb_y = 0; mb_y < s->mb_height; mb_y++) { 969 for (mb_x = 0; mb_x < s->mb_width; mb_x++) { 970 int status = s->error_status_table[mb_x + mb_y * s->mb_stride]; 971 972 av_log(s->avctx, AV_LOG_DEBUG, "%2X ", status); 973 } 974 av_log(s->avctx, AV_LOG_DEBUG, "\n"); 975 } 976 } 977 978#if 1 979 /* handle overlapping slices */ 980 for (error_type = 1; error_type <= 3; error_type++) { 981 int end_ok = 0; 982 983 for (i = s->mb_num - 1; i >= 0; i--) { 984 const int mb_xy = s->mb_index2xy[i]; 985 int error = s->error_status_table[mb_xy]; 986 987 if (error & (1 << error_type)) 988 end_ok = 1; 989 if (error & (8 << error_type)) 990 end_ok = 1; 991 992 if (!end_ok) 993 s->error_status_table[mb_xy] |= 1 << error_type; 994 995 if (error & VP_START) 996 end_ok = 0; 997 } 998 } 999#endif 1000#if 1 1001 /* handle slices with partitions of different length */ 1002 if (s->partitioned_frame) { 1003 int end_ok = 0; 1004 1005 for (i = s->mb_num - 1; i >= 0; i--) { 1006 const int mb_xy = s->mb_index2xy[i]; 1007 int error = s->error_status_table[mb_xy]; 1008 1009 if (error & ER_AC_END) 1010 end_ok = 0; 1011 if ((error & ER_MV_END) || 1012 (error & ER_DC_END) || 1013 (error & ER_AC_ERROR)) 1014 end_ok = 1; 1015 1016 if (!end_ok) 1017 s->error_status_table[mb_xy]|= ER_AC_ERROR; 1018 1019 if (error & VP_START) 1020 end_ok = 0; 1021 } 1022 } 1023#endif 1024 /* handle missing slices */ 1025 if (s->avctx->err_recognition & AV_EF_EXPLODE) { 1026 int end_ok = 1; 1027 1028 // FIXME + 100 hack 1029 for (i = s->mb_num - 2; i >= s->mb_width + 100; i--) { 1030 const int mb_xy = s->mb_index2xy[i]; 1031 int error1 = s->error_status_table[mb_xy]; 1032 int error2 = s->error_status_table[s->mb_index2xy[i + 1]]; 1033 1034 if (error1 & VP_START) 1035 end_ok = 1; 1036 1037 if (error2 == (VP_START | ER_MB_ERROR | ER_MB_END) && 1038 error1 != (VP_START | ER_MB_ERROR | ER_MB_END) && 1039 ((error1 & ER_AC_END) || (error1 & ER_DC_END) || 1040 (error1 & ER_MV_END))) { 1041 // end & uninit 1042 end_ok = 0; 1043 } 1044 1045 if (!end_ok) 1046 s->error_status_table[mb_xy] |= ER_MB_ERROR; 1047 } 1048 } 1049 1050#if 1 1051 /* backward mark errors */ 1052 distance = 9999999; 1053 for (error_type = 1; error_type <= 3; error_type++) { 1054 for (i = s->mb_num - 1; i >= 0; i--) { 1055 const int mb_xy = s->mb_index2xy[i]; 1056 int error = s->error_status_table[mb_xy]; 1057 1058 if (!s->mbskip_table || !s->mbskip_table[mb_xy]) // FIXME partition specific 1059 distance++; 1060 if (error & (1 << error_type)) 1061 distance = 0; 1062 1063 if (s->partitioned_frame) { 1064 if (distance < threshold_part[error_type - 1]) 1065 s->error_status_table[mb_xy] |= 1 << error_type; 1066 } else { 1067 if (distance < threshold) 1068 s->error_status_table[mb_xy] |= 1 << error_type; 1069 } 1070 1071 if (error & VP_START) 1072 distance = 9999999; 1073 } 1074 } 1075#endif 1076 1077 /* forward mark errors */ 1078 error = 0; 1079 for (i = 0; i < s->mb_num; i++) { 1080 const int mb_xy = s->mb_index2xy[i]; 1081 int old_error = s->error_status_table[mb_xy]; 1082 1083 if (old_error & VP_START) { 1084 error = old_error & ER_MB_ERROR; 1085 } else { 1086 error |= old_error & ER_MB_ERROR; 1087 s->error_status_table[mb_xy] |= error; 1088 } 1089 } 1090#if 1 1091 /* handle not partitioned case */ 1092 if (!s->partitioned_frame) { 1093 for (i = 0; i < s->mb_num; i++) { 1094 const int mb_xy = s->mb_index2xy[i]; 1095 int error = s->error_status_table[mb_xy]; 1096 if (error & ER_MB_ERROR) 1097 error |= ER_MB_ERROR; 1098 s->error_status_table[mb_xy] = error; 1099 } 1100 } 1101#endif 1102 1103 dc_error = ac_error = mv_error = 0; 1104 for (i = 0; i < s->mb_num; i++) { 1105 const int mb_xy = s->mb_index2xy[i]; 1106 int error = s->error_status_table[mb_xy]; 1107 if (error & ER_DC_ERROR) 1108 dc_error++; 1109 if (error & ER_AC_ERROR) 1110 ac_error++; 1111 if (error & ER_MV_ERROR) 1112 mv_error++; 1113 } 1114 av_log(s->avctx, AV_LOG_INFO, "concealing %d DC, %d AC, %d MV errors in %c frame\n", 1115 dc_error, ac_error, mv_error, av_get_picture_type_char(s->cur_pic.f->pict_type)); 1116 1117 s->cur_pic.f->decode_error_flags |= FF_DECODE_ERROR_CONCEALMENT_ACTIVE; 1118 1119 is_intra_likely = is_intra_more_likely(s); 1120 1121 /* set unknown mb-type to most likely */ 1122 for (i = 0; i < s->mb_num; i++) { 1123 const int mb_xy = s->mb_index2xy[i]; 1124 int error = s->error_status_table[mb_xy]; 1125 if (!((error & ER_DC_ERROR) && (error & ER_MV_ERROR))) 1126 continue; 1127 1128 if (is_intra_likely) 1129 s->cur_pic.mb_type[mb_xy] = MB_TYPE_INTRA4x4; 1130 else 1131 s->cur_pic.mb_type[mb_xy] = MB_TYPE_16x16 | MB_TYPE_L0; 1132 } 1133 1134 // change inter to intra blocks if no reference frames are available 1135 if (!(s->last_pic.f && s->last_pic.f->data[0]) && 1136 !(s->next_pic.f && s->next_pic.f->data[0])) 1137 for (i = 0; i < s->mb_num; i++) { 1138 const int mb_xy = s->mb_index2xy[i]; 1139 if (!IS_INTRA(s->cur_pic.mb_type[mb_xy])) 1140 s->cur_pic.mb_type[mb_xy] = MB_TYPE_INTRA4x4; 1141 } 1142 1143 /* handle inter blocks with damaged AC */ 1144 for (mb_y = 0; mb_y < s->mb_height; mb_y++) { 1145 for (mb_x = 0; mb_x < s->mb_width; mb_x++) { 1146 const int mb_xy = mb_x + mb_y * s->mb_stride; 1147 const int mb_type = s->cur_pic.mb_type[mb_xy]; 1148 const int dir = !(s->last_pic.f && s->last_pic.f->data[0]); 1149 const int mv_dir = dir ? MV_DIR_BACKWARD : MV_DIR_FORWARD; 1150 int mv_type; 1151 1152 int error = s->error_status_table[mb_xy]; 1153 1154 if (IS_INTRA(mb_type)) 1155 continue; // intra 1156 if (error & ER_MV_ERROR) 1157 continue; // inter with damaged MV 1158 if (!(error & ER_AC_ERROR)) 1159 continue; // undamaged inter 1160 1161 if (IS_8X8(mb_type)) { 1162 int mb_index = mb_x * 2 + mb_y * 2 * s->b8_stride; 1163 int j; 1164 mv_type = MV_TYPE_8X8; 1165 for (j = 0; j < 4; j++) { 1166 s->mv[0][j][0] = s->cur_pic.motion_val[dir][mb_index + (j & 1) + (j >> 1) * s->b8_stride][0]; 1167 s->mv[0][j][1] = s->cur_pic.motion_val[dir][mb_index + (j & 1) + (j >> 1) * s->b8_stride][1]; 1168 } 1169 } else { 1170 mv_type = MV_TYPE_16X16; 1171 s->mv[0][0][0] = s->cur_pic.motion_val[dir][mb_x * 2 + mb_y * 2 * s->b8_stride][0]; 1172 s->mv[0][0][1] = s->cur_pic.motion_val[dir][mb_x * 2 + mb_y * 2 * s->b8_stride][1]; 1173 } 1174 1175 s->decode_mb(s->opaque, 0 /* FIXME H.264 partitioned slices need this set */, 1176 mv_dir, mv_type, &s->mv, mb_x, mb_y, 0, 0); 1177 } 1178 } 1179 1180 /* guess MVs */ 1181 if (s->cur_pic.f->pict_type == AV_PICTURE_TYPE_B) { 1182 for (mb_y = 0; mb_y < s->mb_height; mb_y++) { 1183 for (mb_x = 0; mb_x < s->mb_width; mb_x++) { 1184 int xy = mb_x * 2 + mb_y * 2 * s->b8_stride; 1185 const int mb_xy = mb_x + mb_y * s->mb_stride; 1186 const int mb_type = s->cur_pic.mb_type[mb_xy]; 1187 int mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD; 1188 1189 int error = s->error_status_table[mb_xy]; 1190 1191 if (IS_INTRA(mb_type)) 1192 continue; 1193 if (!(error & ER_MV_ERROR)) 1194 continue; // inter with undamaged MV 1195 if (!(error & ER_AC_ERROR)) 1196 continue; // undamaged inter 1197 1198 if (!(s->last_pic.f && s->last_pic.f->data[0])) 1199 mv_dir &= ~MV_DIR_FORWARD; 1200 if (!(s->next_pic.f && s->next_pic.f->data[0])) 1201 mv_dir &= ~MV_DIR_BACKWARD; 1202 1203 if (s->pp_time) { 1204 int time_pp = s->pp_time; 1205 int time_pb = s->pb_time; 1206 1207 av_assert0(s->avctx->codec_id != AV_CODEC_ID_H264); 1208 ff_thread_await_progress(s->next_pic.tf, mb_y, 0); 1209 1210 s->mv[0][0][0] = s->next_pic.motion_val[0][xy][0] * time_pb / time_pp; 1211 s->mv[0][0][1] = s->next_pic.motion_val[0][xy][1] * time_pb / time_pp; 1212 s->mv[1][0][0] = s->next_pic.motion_val[0][xy][0] * (time_pb - time_pp) / time_pp; 1213 s->mv[1][0][1] = s->next_pic.motion_val[0][xy][1] * (time_pb - time_pp) / time_pp; 1214 } else { 1215 s->mv[0][0][0] = 0; 1216 s->mv[0][0][1] = 0; 1217 s->mv[1][0][0] = 0; 1218 s->mv[1][0][1] = 0; 1219 } 1220 1221 s->decode_mb(s->opaque, 0, mv_dir, MV_TYPE_16X16, &s->mv, 1222 mb_x, mb_y, 0, 0); 1223 } 1224 } 1225 } else 1226 guess_mv(s); 1227 1228 /* fill DC for inter blocks */ 1229 for (mb_y = 0; mb_y < s->mb_height; mb_y++) { 1230 for (mb_x = 0; mb_x < s->mb_width; mb_x++) { 1231 int dc, dcu, dcv, y, n; 1232 int16_t *dc_ptr; 1233 uint8_t *dest_y, *dest_cb, *dest_cr; 1234 const int mb_xy = mb_x + mb_y * s->mb_stride; 1235 const int mb_type = s->cur_pic.mb_type[mb_xy]; 1236 1237 // error = s->error_status_table[mb_xy]; 1238 1239 if (IS_INTRA(mb_type) && s->partitioned_frame) 1240 continue; 1241 // if (error & ER_MV_ERROR) 1242 // continue; // inter data damaged FIXME is this good? 1243 1244 dest_y = s->cur_pic.f->data[0] + mb_x * 16 + mb_y * 16 * linesize[0]; 1245 dest_cb = s->cur_pic.f->data[1] + mb_x * 8 + mb_y * 8 * linesize[1]; 1246 dest_cr = s->cur_pic.f->data[2] + mb_x * 8 + mb_y * 8 * linesize[2]; 1247 1248 dc_ptr = &s->dc_val[0][mb_x * 2 + mb_y * 2 * s->b8_stride]; 1249 for (n = 0; n < 4; n++) { 1250 dc = 0; 1251 for (y = 0; y < 8; y++) { 1252 int x; 1253 for (x = 0; x < 8; x++) 1254 dc += dest_y[x + (n & 1) * 8 + 1255 (y + (n >> 1) * 8) * linesize[0]]; 1256 } 1257 dc_ptr[(n & 1) + (n >> 1) * s->b8_stride] = (dc + 4) >> 3; 1258 } 1259 1260 if (!s->cur_pic.f->data[2]) 1261 continue; 1262 1263 dcu = dcv = 0; 1264 for (y = 0; y < 8; y++) { 1265 int x; 1266 for (x = 0; x < 8; x++) { 1267 dcu += dest_cb[x + y * linesize[1]]; 1268 dcv += dest_cr[x + y * linesize[2]]; 1269 } 1270 } 1271 s->dc_val[1][mb_x + mb_y * s->mb_stride] = (dcu + 4) >> 3; 1272 s->dc_val[2][mb_x + mb_y * s->mb_stride] = (dcv + 4) >> 3; 1273 } 1274 } 1275#if 1 1276 /* guess DC for damaged blocks */ 1277 guess_dc(s, s->dc_val[0], s->mb_width*2, s->mb_height*2, s->b8_stride, 1); 1278 guess_dc(s, s->dc_val[1], s->mb_width , s->mb_height , s->mb_stride, 0); 1279 guess_dc(s, s->dc_val[2], s->mb_width , s->mb_height , s->mb_stride, 0); 1280#endif 1281 1282 /* filter luma DC */ 1283 filter181(s->dc_val[0], s->mb_width * 2, s->mb_height * 2, s->b8_stride); 1284 1285#if 1 1286 /* render DC only intra */ 1287 for (mb_y = 0; mb_y < s->mb_height; mb_y++) { 1288 for (mb_x = 0; mb_x < s->mb_width; mb_x++) { 1289 uint8_t *dest_y, *dest_cb, *dest_cr; 1290 const int mb_xy = mb_x + mb_y * s->mb_stride; 1291 const int mb_type = s->cur_pic.mb_type[mb_xy]; 1292 1293 int error = s->error_status_table[mb_xy]; 1294 1295 if (IS_INTER(mb_type)) 1296 continue; 1297 if (!(error & ER_AC_ERROR)) 1298 continue; // undamaged 1299 1300 dest_y = s->cur_pic.f->data[0] + mb_x * 16 + mb_y * 16 * linesize[0]; 1301 dest_cb = s->cur_pic.f->data[1] + mb_x * 8 + mb_y * 8 * linesize[1]; 1302 dest_cr = s->cur_pic.f->data[2] + mb_x * 8 + mb_y * 8 * linesize[2]; 1303 if (!s->cur_pic.f->data[2]) 1304 dest_cb = dest_cr = NULL; 1305 1306 put_dc(s, dest_y, dest_cb, dest_cr, mb_x, mb_y); 1307 } 1308 } 1309#endif 1310 1311 if (s->avctx->error_concealment & FF_EC_DEBLOCK) { 1312 /* filter horizontal block boundaries */ 1313 h_block_filter(s, s->cur_pic.f->data[0], s->mb_width * 2, 1314 s->mb_height * 2, linesize[0], 1); 1315 1316 /* filter vertical block boundaries */ 1317 v_block_filter(s, s->cur_pic.f->data[0], s->mb_width * 2, 1318 s->mb_height * 2, linesize[0], 1); 1319 1320 if (s->cur_pic.f->data[2]) { 1321 h_block_filter(s, s->cur_pic.f->data[1], s->mb_width, 1322 s->mb_height, linesize[1], 0); 1323 h_block_filter(s, s->cur_pic.f->data[2], s->mb_width, 1324 s->mb_height, linesize[2], 0); 1325 v_block_filter(s, s->cur_pic.f->data[1], s->mb_width, 1326 s->mb_height, linesize[1], 0); 1327 v_block_filter(s, s->cur_pic.f->data[2], s->mb_width, 1328 s->mb_height, linesize[2], 0); 1329 } 1330 } 1331 1332 /* clean a few tables */ 1333 for (i = 0; i < s->mb_num; i++) { 1334 const int mb_xy = s->mb_index2xy[i]; 1335 int error = s->error_status_table[mb_xy]; 1336 1337 if (s->mbskip_table && s->cur_pic.f->pict_type != AV_PICTURE_TYPE_B && 1338 (error & (ER_DC_ERROR | ER_MV_ERROR | ER_AC_ERROR))) { 1339 s->mbskip_table[mb_xy] = 0; 1340 } 1341 if (s->mbintra_table) 1342 s->mbintra_table[mb_xy] = 1; 1343 } 1344 1345 for (i = 0; i < 2; i++) { 1346 av_buffer_unref(&s->ref_index_buf[i]); 1347 av_buffer_unref(&s->motion_val_buf[i]); 1348 s->cur_pic.ref_index[i] = NULL; 1349 s->cur_pic.motion_val[i] = NULL; 1350 } 1351 1352 memset(&s->cur_pic, 0, sizeof(ERPicture)); 1353 memset(&s->last_pic, 0, sizeof(ERPicture)); 1354 memset(&s->next_pic, 0, sizeof(ERPicture)); 1355} 1356