1 /* 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 12 #include "vpx_config.h" 13 #include "vp8_rtcd.h" 14 #include "encodemb.h" 15 #include "encodemv.h" 16 #include "vp8/common/common.h" 17 #include "onyx_int.h" 18 #include "vp8/common/extend.h" 19 #include "vp8/common/entropymode.h" 20 #include "vp8/common/quant_common.h" 21 #include "segmentation.h" 22 #include "vp8/common/setupintrarecon.h" 23 #include "encodeintra.h" 24 #include "vp8/common/reconinter.h" 25 #include "rdopt.h" 26 #include "pickinter.h" 27 #include "vp8/common/findnearmv.h" 28 #include <stdio.h> 29 #include <limits.h> 30 #include "vp8/common/invtrans.h" 31 #include "vpx_ports/vpx_timer.h" 32 #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING 33 #include "bitstream.h" 34 #endif 35 #include "encodeframe.h" 36 37 extern void vp8_stuff_mb(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t) ; 38 extern void vp8_calc_ref_frame_costs(int *ref_frame_cost, 39 int prob_intra, 40 int prob_last, 41 int prob_garf 42 ); 43 extern void vp8_convert_rfct_to_prob(VP8_COMP *const cpi); 44 extern void vp8cx_initialize_me_consts(VP8_COMP *cpi, int QIndex); 45 extern void vp8_auto_select_speed(VP8_COMP *cpi); 46 extern void vp8cx_init_mbrthread_data(VP8_COMP *cpi, 47 MACROBLOCK *x, 48 MB_ROW_COMP *mbr_ei, 49 int count); 50 static void adjust_act_zbin( VP8_COMP *cpi, MACROBLOCK *x ); 51 52 #ifdef MODE_STATS 53 unsigned int inter_y_modes[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 54 unsigned int inter_uv_modes[4] = {0, 0, 0, 0}; 55 unsigned int inter_b_modes[15] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 56 unsigned int y_modes[5] = {0, 0, 0, 0, 0}; 57 unsigned int uv_modes[4] = {0, 0, 0, 0}; 58 unsigned int b_modes[14] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 59 #endif 60 61 62 /* activity_avg must be positive, or flat regions could get a zero weight 63 * (infinite lambda), which confounds analysis. 64 * This also avoids the need for divide by zero checks in 65 * vp8_activity_masking(). 66 */ 67 #define VP8_ACTIVITY_AVG_MIN (64) 68 69 /* This is used as a reference when computing the source variance for the 70 * purposes of activity masking. 71 * Eventually this should be replaced by custom no-reference routines, 72 * which will be faster. 73 */ 74 static const unsigned char VP8_VAR_OFFS[16]= 75 { 76 128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128 77 }; 78 79 80 /* Original activity measure from Tim T's code. */ 81 static unsigned int tt_activity_measure( VP8_COMP *cpi, MACROBLOCK *x ) 82 { 83 unsigned int act; 84 unsigned int sse; 85 /* TODO: This could also be done over smaller areas (8x8), but that would 86 * require extensive changes elsewhere, as lambda is assumed to be fixed 87 * over an entire MB in most of the code. 88 * Another option is to compute four 8x8 variances, and pick a single 89 * lambda using a non-linear combination (e.g., the smallest, or second 90 * smallest, etc.). 91 */ 92 act = vp8_variance16x16(x->src.y_buffer, 93 x->src.y_stride, VP8_VAR_OFFS, 0, &sse); 94 act = act<<4; 95 96 /* If the region is flat, lower the activity some more. */ 97 if (act < 8<<12) 98 act = act < 5<<12 ? act : 5<<12; 99 100 return act; 101 } 102 103 /* Stub for alternative experimental activity measures. */ 104 static unsigned int alt_activity_measure( VP8_COMP *cpi, 105 MACROBLOCK *x, int use_dc_pred ) 106 { 107 return vp8_encode_intra(cpi,x, use_dc_pred); 108 } 109 110 111 /* Measure the activity of the current macroblock 112 * What we measure here is TBD so abstracted to this function 113 */ 114 #define ALT_ACT_MEASURE 1 115 static unsigned int mb_activity_measure( VP8_COMP *cpi, MACROBLOCK *x, 116 int mb_row, int mb_col) 117 { 118 unsigned int mb_activity; 119 120 if ( ALT_ACT_MEASURE ) 121 { 122 int use_dc_pred = (mb_col || mb_row) && (!mb_col || !mb_row); 123 124 /* Or use and alternative. */ 125 mb_activity = alt_activity_measure( cpi, x, use_dc_pred ); 126 } 127 else 128 { 129 /* Original activity measure from Tim T's code. */ 130 mb_activity = tt_activity_measure( cpi, x ); 131 } 132 133 if ( mb_activity < VP8_ACTIVITY_AVG_MIN ) 134 mb_activity = VP8_ACTIVITY_AVG_MIN; 135 136 return mb_activity; 137 } 138 139 /* Calculate an "average" mb activity value for the frame */ 140 #define ACT_MEDIAN 0 141 static void calc_av_activity( VP8_COMP *cpi, int64_t activity_sum ) 142 { 143 #if ACT_MEDIAN 144 /* Find median: Simple n^2 algorithm for experimentation */ 145 { 146 unsigned int median; 147 unsigned int i,j; 148 unsigned int * sortlist; 149 unsigned int tmp; 150 151 /* Create a list to sort to */ 152 CHECK_MEM_ERROR(sortlist, 153 vpx_calloc(sizeof(unsigned int), 154 cpi->common.MBs)); 155 156 /* Copy map to sort list */ 157 vpx_memcpy( sortlist, cpi->mb_activity_map, 158 sizeof(unsigned int) * cpi->common.MBs ); 159 160 161 /* Ripple each value down to its correct position */ 162 for ( i = 1; i < cpi->common.MBs; i ++ ) 163 { 164 for ( j = i; j > 0; j -- ) 165 { 166 if ( sortlist[j] < sortlist[j-1] ) 167 { 168 /* Swap values */ 169 tmp = sortlist[j-1]; 170 sortlist[j-1] = sortlist[j]; 171 sortlist[j] = tmp; 172 } 173 else 174 break; 175 } 176 } 177 178 /* Even number MBs so estimate median as mean of two either side. */ 179 median = ( 1 + sortlist[cpi->common.MBs >> 1] + 180 sortlist[(cpi->common.MBs >> 1) + 1] ) >> 1; 181 182 cpi->activity_avg = median; 183 184 vpx_free(sortlist); 185 } 186 #else 187 /* Simple mean for now */ 188 cpi->activity_avg = (unsigned int)(activity_sum/cpi->common.MBs); 189 #endif 190 191 if (cpi->activity_avg < VP8_ACTIVITY_AVG_MIN) 192 cpi->activity_avg = VP8_ACTIVITY_AVG_MIN; 193 194 /* Experimental code: return fixed value normalized for several clips */ 195 if ( ALT_ACT_MEASURE ) 196 cpi->activity_avg = 100000; 197 } 198 199 #define USE_ACT_INDEX 0 200 #define OUTPUT_NORM_ACT_STATS 0 201 202 #if USE_ACT_INDEX 203 /* Calculate and activity index for each mb */ 204 static void calc_activity_index( VP8_COMP *cpi, MACROBLOCK *x ) 205 { 206 VP8_COMMON *const cm = & cpi->common; 207 int mb_row, mb_col; 208 209 int64_t act; 210 int64_t a; 211 int64_t b; 212 213 #if OUTPUT_NORM_ACT_STATS 214 FILE *f = fopen("norm_act.stt", "a"); 215 fprintf(f, "\n%12d\n", cpi->activity_avg ); 216 #endif 217 218 /* Reset pointers to start of activity map */ 219 x->mb_activity_ptr = cpi->mb_activity_map; 220 221 /* Calculate normalized mb activity number. */ 222 for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) 223 { 224 /* for each macroblock col in image */ 225 for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) 226 { 227 /* Read activity from the map */ 228 act = *(x->mb_activity_ptr); 229 230 /* Calculate a normalized activity number */ 231 a = act + 4*cpi->activity_avg; 232 b = 4*act + cpi->activity_avg; 233 234 if ( b >= a ) 235 *(x->activity_ptr) = (int)((b + (a>>1))/a) - 1; 236 else 237 *(x->activity_ptr) = 1 - (int)((a + (b>>1))/b); 238 239 #if OUTPUT_NORM_ACT_STATS 240 fprintf(f, " %6d", *(x->mb_activity_ptr)); 241 #endif 242 /* Increment activity map pointers */ 243 x->mb_activity_ptr++; 244 } 245 246 #if OUTPUT_NORM_ACT_STATS 247 fprintf(f, "\n"); 248 #endif 249 250 } 251 252 #if OUTPUT_NORM_ACT_STATS 253 fclose(f); 254 #endif 255 256 } 257 #endif 258 259 /* Loop through all MBs. Note activity of each, average activity and 260 * calculate a normalized activity for each 261 */ 262 static void build_activity_map( VP8_COMP *cpi ) 263 { 264 MACROBLOCK *const x = & cpi->mb; 265 MACROBLOCKD *xd = &x->e_mbd; 266 VP8_COMMON *const cm = & cpi->common; 267 268 #if ALT_ACT_MEASURE 269 YV12_BUFFER_CONFIG *new_yv12 = &cm->yv12_fb[cm->new_fb_idx]; 270 int recon_yoffset; 271 int recon_y_stride = new_yv12->y_stride; 272 #endif 273 274 int mb_row, mb_col; 275 unsigned int mb_activity; 276 int64_t activity_sum = 0; 277 278 /* for each macroblock row in image */ 279 for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) 280 { 281 #if ALT_ACT_MEASURE 282 /* reset above block coeffs */ 283 xd->up_available = (mb_row != 0); 284 recon_yoffset = (mb_row * recon_y_stride * 16); 285 #endif 286 /* for each macroblock col in image */ 287 for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) 288 { 289 #if ALT_ACT_MEASURE 290 xd->dst.y_buffer = new_yv12->y_buffer + recon_yoffset; 291 xd->left_available = (mb_col != 0); 292 recon_yoffset += 16; 293 #endif 294 /* Copy current mb to a buffer */ 295 vp8_copy_mem16x16(x->src.y_buffer, x->src.y_stride, x->thismb, 16); 296 297 /* measure activity */ 298 mb_activity = mb_activity_measure( cpi, x, mb_row, mb_col ); 299 300 /* Keep frame sum */ 301 activity_sum += mb_activity; 302 303 /* Store MB level activity details. */ 304 *x->mb_activity_ptr = mb_activity; 305 306 /* Increment activity map pointer */ 307 x->mb_activity_ptr++; 308 309 /* adjust to the next column of source macroblocks */ 310 x->src.y_buffer += 16; 311 } 312 313 314 /* adjust to the next row of mbs */ 315 x->src.y_buffer += 16 * x->src.y_stride - 16 * cm->mb_cols; 316 317 #if ALT_ACT_MEASURE 318 /* extend the recon for intra prediction */ 319 vp8_extend_mb_row(new_yv12, xd->dst.y_buffer + 16, 320 xd->dst.u_buffer + 8, xd->dst.v_buffer + 8); 321 #endif 322 323 } 324 325 /* Calculate an "average" MB activity */ 326 calc_av_activity(cpi, activity_sum); 327 328 #if USE_ACT_INDEX 329 /* Calculate an activity index number of each mb */ 330 calc_activity_index( cpi, x ); 331 #endif 332 333 } 334 335 /* Macroblock activity masking */ 336 void vp8_activity_masking(VP8_COMP *cpi, MACROBLOCK *x) 337 { 338 #if USE_ACT_INDEX 339 x->rdmult += *(x->mb_activity_ptr) * (x->rdmult >> 2); 340 x->errorperbit = x->rdmult * 100 /(110 * x->rddiv); 341 x->errorperbit += (x->errorperbit==0); 342 #else 343 int64_t a; 344 int64_t b; 345 int64_t act = *(x->mb_activity_ptr); 346 347 /* Apply the masking to the RD multiplier. */ 348 a = act + (2*cpi->activity_avg); 349 b = (2*act) + cpi->activity_avg; 350 351 x->rdmult = (unsigned int)(((int64_t)x->rdmult*b + (a>>1))/a); 352 x->errorperbit = x->rdmult * 100 /(110 * x->rddiv); 353 x->errorperbit += (x->errorperbit==0); 354 #endif 355 356 /* Activity based Zbin adjustment */ 357 adjust_act_zbin(cpi, x); 358 } 359 360 static 361 void encode_mb_row(VP8_COMP *cpi, 362 VP8_COMMON *cm, 363 int mb_row, 364 MACROBLOCK *x, 365 MACROBLOCKD *xd, 366 TOKENEXTRA **tp, 367 int *segment_counts, 368 int *totalrate) 369 { 370 int recon_yoffset, recon_uvoffset; 371 int mb_col; 372 int ref_fb_idx = cm->lst_fb_idx; 373 int dst_fb_idx = cm->new_fb_idx; 374 int recon_y_stride = cm->yv12_fb[ref_fb_idx].y_stride; 375 int recon_uv_stride = cm->yv12_fb[ref_fb_idx].uv_stride; 376 int map_index = (mb_row * cpi->common.mb_cols); 377 378 #if (CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING) 379 const int num_part = (1 << cm->multi_token_partition); 380 TOKENEXTRA * tp_start = cpi->tok; 381 vp8_writer *w; 382 #endif 383 384 #if CONFIG_MULTITHREAD 385 const int nsync = cpi->mt_sync_range; 386 const int rightmost_col = cm->mb_cols + nsync; 387 volatile const int *last_row_current_mb_col; 388 volatile int *current_mb_col = &cpi->mt_current_mb_col[mb_row]; 389 390 if ((cpi->b_multi_threaded != 0) && (mb_row != 0)) 391 last_row_current_mb_col = &cpi->mt_current_mb_col[mb_row - 1]; 392 else 393 last_row_current_mb_col = &rightmost_col; 394 #endif 395 396 #if (CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING) 397 if(num_part > 1) 398 w= &cpi->bc[1 + (mb_row % num_part)]; 399 else 400 w = &cpi->bc[1]; 401 #endif 402 403 /* reset above block coeffs */ 404 xd->above_context = cm->above_context; 405 406 xd->up_available = (mb_row != 0); 407 recon_yoffset = (mb_row * recon_y_stride * 16); 408 recon_uvoffset = (mb_row * recon_uv_stride * 8); 409 410 cpi->tplist[mb_row].start = *tp; 411 /* printf("Main mb_row = %d\n", mb_row); */ 412 413 /* Distance of Mb to the top & bottom edges, specified in 1/8th pel 414 * units as they are always compared to values that are in 1/8th pel 415 */ 416 xd->mb_to_top_edge = -((mb_row * 16) << 3); 417 xd->mb_to_bottom_edge = ((cm->mb_rows - 1 - mb_row) * 16) << 3; 418 419 /* Set up limit values for vertical motion vector components 420 * to prevent them extending beyond the UMV borders 421 */ 422 x->mv_row_min = -((mb_row * 16) + (VP8BORDERINPIXELS - 16)); 423 x->mv_row_max = ((cm->mb_rows - 1 - mb_row) * 16) 424 + (VP8BORDERINPIXELS - 16); 425 426 /* Set the mb activity pointer to the start of the row. */ 427 x->mb_activity_ptr = &cpi->mb_activity_map[map_index]; 428 429 /* for each macroblock col in image */ 430 for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) 431 { 432 433 #if (CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING) 434 *tp = cpi->tok; 435 #endif 436 /* Distance of Mb to the left & right edges, specified in 437 * 1/8th pel units as they are always compared to values 438 * that are in 1/8th pel units 439 */ 440 xd->mb_to_left_edge = -((mb_col * 16) << 3); 441 xd->mb_to_right_edge = ((cm->mb_cols - 1 - mb_col) * 16) << 3; 442 443 /* Set up limit values for horizontal motion vector components 444 * to prevent them extending beyond the UMV borders 445 */ 446 x->mv_col_min = -((mb_col * 16) + (VP8BORDERINPIXELS - 16)); 447 x->mv_col_max = ((cm->mb_cols - 1 - mb_col) * 16) 448 + (VP8BORDERINPIXELS - 16); 449 450 xd->dst.y_buffer = cm->yv12_fb[dst_fb_idx].y_buffer + recon_yoffset; 451 xd->dst.u_buffer = cm->yv12_fb[dst_fb_idx].u_buffer + recon_uvoffset; 452 xd->dst.v_buffer = cm->yv12_fb[dst_fb_idx].v_buffer + recon_uvoffset; 453 xd->left_available = (mb_col != 0); 454 455 x->rddiv = cpi->RDDIV; 456 x->rdmult = cpi->RDMULT; 457 458 /* Copy current mb to a buffer */ 459 vp8_copy_mem16x16(x->src.y_buffer, x->src.y_stride, x->thismb, 16); 460 461 #if CONFIG_MULTITHREAD 462 if (cpi->b_multi_threaded != 0) 463 { 464 *current_mb_col = mb_col - 1; /* set previous MB done */ 465 466 if ((mb_col & (nsync - 1)) == 0) 467 { 468 while (mb_col > (*last_row_current_mb_col - nsync)) 469 { 470 x86_pause_hint(); 471 thread_sleep(0); 472 } 473 } 474 } 475 #endif 476 477 if(cpi->oxcf.tuning == VP8_TUNE_SSIM) 478 vp8_activity_masking(cpi, x); 479 480 /* Is segmentation enabled */ 481 /* MB level adjustment to quantizer */ 482 if (xd->segmentation_enabled) 483 { 484 /* Code to set segment id in xd->mbmi.segment_id for current MB 485 * (with range checking) 486 */ 487 if (cpi->segmentation_map[map_index+mb_col] <= 3) 488 xd->mode_info_context->mbmi.segment_id = cpi->segmentation_map[map_index+mb_col]; 489 else 490 xd->mode_info_context->mbmi.segment_id = 0; 491 492 vp8cx_mb_init_quantizer(cpi, x, 1); 493 } 494 else 495 /* Set to Segment 0 by default */ 496 xd->mode_info_context->mbmi.segment_id = 0; 497 498 x->active_ptr = cpi->active_map + map_index + mb_col; 499 500 if (cm->frame_type == KEY_FRAME) 501 { 502 *totalrate += vp8cx_encode_intra_macroblock(cpi, x, tp); 503 #ifdef MODE_STATS 504 y_modes[xd->mbmi.mode] ++; 505 #endif 506 } 507 else 508 { 509 *totalrate += vp8cx_encode_inter_macroblock(cpi, x, tp, recon_yoffset, recon_uvoffset, mb_row, mb_col); 510 511 #ifdef MODE_STATS 512 inter_y_modes[xd->mbmi.mode] ++; 513 514 if (xd->mbmi.mode == SPLITMV) 515 { 516 int b; 517 518 for (b = 0; b < xd->mbmi.partition_count; b++) 519 { 520 inter_b_modes[x->partition->bmi[b].mode] ++; 521 } 522 } 523 524 #endif 525 526 /* Special case code for cyclic refresh 527 * If cyclic update enabled then copy xd->mbmi.segment_id; (which 528 * may have been updated based on mode during 529 * vp8cx_encode_inter_macroblock()) back into the global 530 * segmentation map 531 */ 532 if ((cpi->current_layer == 0) && 533 (cpi->cyclic_refresh_mode_enabled && 534 xd->segmentation_enabled)) 535 { 536 cpi->segmentation_map[map_index+mb_col] = xd->mode_info_context->mbmi.segment_id; 537 538 /* If the block has been refreshed mark it as clean (the 539 * magnitude of the -ve influences how long it will be before 540 * we consider another refresh): 541 * Else if it was coded (last frame 0,0) and has not already 542 * been refreshed then mark it as a candidate for cleanup 543 * next time (marked 0) else mark it as dirty (1). 544 */ 545 if (xd->mode_info_context->mbmi.segment_id) 546 cpi->cyclic_refresh_map[map_index+mb_col] = -1; 547 else if ((xd->mode_info_context->mbmi.mode == ZEROMV) && (xd->mode_info_context->mbmi.ref_frame == LAST_FRAME)) 548 { 549 if (cpi->cyclic_refresh_map[map_index+mb_col] == 1) 550 cpi->cyclic_refresh_map[map_index+mb_col] = 0; 551 } 552 else 553 cpi->cyclic_refresh_map[map_index+mb_col] = 1; 554 555 } 556 } 557 558 cpi->tplist[mb_row].stop = *tp; 559 560 #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING 561 /* pack tokens for this MB */ 562 { 563 int tok_count = *tp - tp_start; 564 pack_tokens(w, tp_start, tok_count); 565 } 566 #endif 567 /* Increment pointer into gf usage flags structure. */ 568 x->gf_active_ptr++; 569 570 /* Increment the activity mask pointers. */ 571 x->mb_activity_ptr++; 572 573 /* adjust to the next column of macroblocks */ 574 x->src.y_buffer += 16; 575 x->src.u_buffer += 8; 576 x->src.v_buffer += 8; 577 578 recon_yoffset += 16; 579 recon_uvoffset += 8; 580 581 /* Keep track of segment usage */ 582 segment_counts[xd->mode_info_context->mbmi.segment_id] ++; 583 584 /* skip to next mb */ 585 xd->mode_info_context++; 586 x->partition_info++; 587 xd->above_context++; 588 } 589 590 /* extend the recon for intra prediction */ 591 vp8_extend_mb_row( &cm->yv12_fb[dst_fb_idx], 592 xd->dst.y_buffer + 16, 593 xd->dst.u_buffer + 8, 594 xd->dst.v_buffer + 8); 595 596 #if CONFIG_MULTITHREAD 597 if (cpi->b_multi_threaded != 0) 598 *current_mb_col = rightmost_col; 599 #endif 600 601 /* this is to account for the border */ 602 xd->mode_info_context++; 603 x->partition_info++; 604 } 605 606 static void init_encode_frame_mb_context(VP8_COMP *cpi) 607 { 608 MACROBLOCK *const x = & cpi->mb; 609 VP8_COMMON *const cm = & cpi->common; 610 MACROBLOCKD *const xd = & x->e_mbd; 611 612 /* GF active flags data structure */ 613 x->gf_active_ptr = (signed char *)cpi->gf_active_flags; 614 615 /* Activity map pointer */ 616 x->mb_activity_ptr = cpi->mb_activity_map; 617 618 x->act_zbin_adj = 0; 619 620 x->partition_info = x->pi; 621 622 xd->mode_info_context = cm->mi; 623 xd->mode_info_stride = cm->mode_info_stride; 624 625 xd->frame_type = cm->frame_type; 626 627 /* reset intra mode contexts */ 628 if (cm->frame_type == KEY_FRAME) 629 vp8_init_mbmode_probs(cm); 630 631 /* Copy data over into macro block data structures. */ 632 x->src = * cpi->Source; 633 xd->pre = cm->yv12_fb[cm->lst_fb_idx]; 634 xd->dst = cm->yv12_fb[cm->new_fb_idx]; 635 636 /* set up frame for intra coded blocks */ 637 vp8_setup_intra_recon(&cm->yv12_fb[cm->new_fb_idx]); 638 639 vp8_build_block_offsets(x); 640 641 xd->mode_info_context->mbmi.mode = DC_PRED; 642 xd->mode_info_context->mbmi.uv_mode = DC_PRED; 643 644 xd->left_context = &cm->left_context; 645 646 x->mvc = cm->fc.mvc; 647 648 vpx_memset(cm->above_context, 0, 649 sizeof(ENTROPY_CONTEXT_PLANES) * cm->mb_cols); 650 651 /* Special case treatment when GF and ARF are not sensible options 652 * for reference 653 */ 654 if (cpi->ref_frame_flags == VP8_LAST_FRAME) 655 vp8_calc_ref_frame_costs(x->ref_frame_cost, 656 cpi->prob_intra_coded,255,128); 657 else if ((cpi->oxcf.number_of_layers > 1) && 658 (cpi->ref_frame_flags == VP8_GOLD_FRAME)) 659 vp8_calc_ref_frame_costs(x->ref_frame_cost, 660 cpi->prob_intra_coded,1,255); 661 else if ((cpi->oxcf.number_of_layers > 1) && 662 (cpi->ref_frame_flags == VP8_ALTR_FRAME)) 663 vp8_calc_ref_frame_costs(x->ref_frame_cost, 664 cpi->prob_intra_coded,1,1); 665 else 666 vp8_calc_ref_frame_costs(x->ref_frame_cost, 667 cpi->prob_intra_coded, 668 cpi->prob_last_coded, 669 cpi->prob_gf_coded); 670 671 xd->fullpixel_mask = 0xffffffff; 672 if(cm->full_pixel) 673 xd->fullpixel_mask = 0xfffffff8; 674 675 vp8_zero(x->coef_counts); 676 vp8_zero(x->ymode_count); 677 vp8_zero(x->uv_mode_count) 678 x->prediction_error = 0; 679 x->intra_error = 0; 680 vp8_zero(x->count_mb_ref_frame_usage); 681 } 682 683 static void sum_coef_counts(MACROBLOCK *x, MACROBLOCK *x_thread) 684 { 685 int i = 0; 686 do 687 { 688 int j = 0; 689 do 690 { 691 int k = 0; 692 do 693 { 694 /* at every context */ 695 696 /* calc probs and branch cts for this frame only */ 697 int t = 0; /* token/prob index */ 698 699 do 700 { 701 x->coef_counts [i][j][k][t] += 702 x_thread->coef_counts [i][j][k][t]; 703 } 704 while (++t < ENTROPY_NODES); 705 } 706 while (++k < PREV_COEF_CONTEXTS); 707 } 708 while (++j < COEF_BANDS); 709 } 710 while (++i < BLOCK_TYPES); 711 } 712 713 void vp8_encode_frame(VP8_COMP *cpi) 714 { 715 int mb_row; 716 MACROBLOCK *const x = & cpi->mb; 717 VP8_COMMON *const cm = & cpi->common; 718 MACROBLOCKD *const xd = & x->e_mbd; 719 TOKENEXTRA *tp = cpi->tok; 720 int segment_counts[MAX_MB_SEGMENTS]; 721 int totalrate; 722 #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING 723 BOOL_CODER * bc = &cpi->bc[1]; /* bc[0] is for control partition */ 724 const int num_part = (1 << cm->multi_token_partition); 725 #endif 726 727 vpx_memset(segment_counts, 0, sizeof(segment_counts)); 728 totalrate = 0; 729 730 if (cpi->compressor_speed == 2) 731 { 732 if (cpi->oxcf.cpu_used < 0) 733 cpi->Speed = -(cpi->oxcf.cpu_used); 734 else 735 vp8_auto_select_speed(cpi); 736 } 737 738 /* Functions setup for all frame types so we can use MC in AltRef */ 739 if(!cm->use_bilinear_mc_filter) 740 { 741 xd->subpixel_predict = vp8_sixtap_predict4x4; 742 xd->subpixel_predict8x4 = vp8_sixtap_predict8x4; 743 xd->subpixel_predict8x8 = vp8_sixtap_predict8x8; 744 xd->subpixel_predict16x16 = vp8_sixtap_predict16x16; 745 } 746 else 747 { 748 xd->subpixel_predict = vp8_bilinear_predict4x4; 749 xd->subpixel_predict8x4 = vp8_bilinear_predict8x4; 750 xd->subpixel_predict8x8 = vp8_bilinear_predict8x8; 751 xd->subpixel_predict16x16 = vp8_bilinear_predict16x16; 752 } 753 754 cpi->mb.skip_true_count = 0; 755 cpi->tok_count = 0; 756 757 #if 0 758 /* Experimental code */ 759 cpi->frame_distortion = 0; 760 cpi->last_mb_distortion = 0; 761 #endif 762 763 xd->mode_info_context = cm->mi; 764 765 vp8_zero(cpi->mb.MVcount); 766 767 vp8cx_frame_init_quantizer(cpi); 768 769 vp8_initialize_rd_consts(cpi, x, 770 vp8_dc_quant(cm->base_qindex, cm->y1dc_delta_q)); 771 772 vp8cx_initialize_me_consts(cpi, cm->base_qindex); 773 774 if(cpi->oxcf.tuning == VP8_TUNE_SSIM) 775 { 776 /* Initialize encode frame context. */ 777 init_encode_frame_mb_context(cpi); 778 779 /* Build a frame level activity map */ 780 build_activity_map(cpi); 781 } 782 783 /* re-init encode frame context. */ 784 init_encode_frame_mb_context(cpi); 785 786 #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING 787 { 788 int i; 789 for(i = 0; i < num_part; i++) 790 { 791 vp8_start_encode(&bc[i], cpi->partition_d[i + 1], 792 cpi->partition_d_end[i + 1]); 793 bc[i].error = &cm->error; 794 } 795 } 796 797 #endif 798 799 { 800 struct vpx_usec_timer emr_timer; 801 vpx_usec_timer_start(&emr_timer); 802 803 #if CONFIG_MULTITHREAD 804 if (cpi->b_multi_threaded) 805 { 806 int i; 807 808 vp8cx_init_mbrthread_data(cpi, x, cpi->mb_row_ei, 809 cpi->encoding_thread_count); 810 811 for (i = 0; i < cm->mb_rows; i++) 812 cpi->mt_current_mb_col[i] = -1; 813 814 for (i = 0; i < cpi->encoding_thread_count; i++) 815 { 816 sem_post(&cpi->h_event_start_encoding[i]); 817 } 818 819 for (mb_row = 0; mb_row < cm->mb_rows; mb_row += (cpi->encoding_thread_count + 1)) 820 { 821 vp8_zero(cm->left_context) 822 823 #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING 824 tp = cpi->tok; 825 #else 826 tp = cpi->tok + mb_row * (cm->mb_cols * 16 * 24); 827 #endif 828 829 encode_mb_row(cpi, cm, mb_row, x, xd, &tp, segment_counts, &totalrate); 830 831 /* adjust to the next row of mbs */ 832 x->src.y_buffer += 16 * x->src.y_stride * (cpi->encoding_thread_count + 1) - 16 * cm->mb_cols; 833 x->src.u_buffer += 8 * x->src.uv_stride * (cpi->encoding_thread_count + 1) - 8 * cm->mb_cols; 834 x->src.v_buffer += 8 * x->src.uv_stride * (cpi->encoding_thread_count + 1) - 8 * cm->mb_cols; 835 836 xd->mode_info_context += xd->mode_info_stride * cpi->encoding_thread_count; 837 x->partition_info += xd->mode_info_stride * cpi->encoding_thread_count; 838 x->gf_active_ptr += cm->mb_cols * cpi->encoding_thread_count; 839 840 if(mb_row == cm->mb_rows - 1) 841 { 842 sem_post(&cpi->h_event_end_encoding); /* signal frame encoding end */ 843 } 844 } 845 846 sem_wait(&cpi->h_event_end_encoding); /* wait for other threads to finish */ 847 848 for (mb_row = 0; mb_row < cm->mb_rows; mb_row ++) 849 { 850 cpi->tok_count += (unsigned int) 851 (cpi->tplist[mb_row].stop - cpi->tplist[mb_row].start); 852 } 853 854 if (xd->segmentation_enabled) 855 { 856 int j; 857 858 if (xd->segmentation_enabled) 859 { 860 for (i = 0; i < cpi->encoding_thread_count; i++) 861 { 862 for (j = 0; j < 4; j++) 863 segment_counts[j] += cpi->mb_row_ei[i].segment_counts[j]; 864 } 865 } 866 } 867 868 for (i = 0; i < cpi->encoding_thread_count; i++) 869 { 870 int mode_count; 871 int c_idx; 872 totalrate += cpi->mb_row_ei[i].totalrate; 873 874 cpi->mb.skip_true_count += cpi->mb_row_ei[i].mb.skip_true_count; 875 876 for(mode_count = 0; mode_count < VP8_YMODES; mode_count++) 877 cpi->mb.ymode_count[mode_count] += 878 cpi->mb_row_ei[i].mb.ymode_count[mode_count]; 879 880 for(mode_count = 0; mode_count < VP8_UV_MODES; mode_count++) 881 cpi->mb.uv_mode_count[mode_count] += 882 cpi->mb_row_ei[i].mb.uv_mode_count[mode_count]; 883 884 for(c_idx = 0; c_idx < MVvals; c_idx++) 885 { 886 cpi->mb.MVcount[0][c_idx] += 887 cpi->mb_row_ei[i].mb.MVcount[0][c_idx]; 888 cpi->mb.MVcount[1][c_idx] += 889 cpi->mb_row_ei[i].mb.MVcount[1][c_idx]; 890 } 891 892 cpi->mb.prediction_error += 893 cpi->mb_row_ei[i].mb.prediction_error; 894 cpi->mb.intra_error += cpi->mb_row_ei[i].mb.intra_error; 895 896 for(c_idx = 0; c_idx < MAX_REF_FRAMES; c_idx++) 897 cpi->mb.count_mb_ref_frame_usage[c_idx] += 898 cpi->mb_row_ei[i].mb.count_mb_ref_frame_usage[c_idx]; 899 900 for(c_idx = 0; c_idx < MAX_ERROR_BINS; c_idx++) 901 cpi->mb.error_bins[c_idx] += 902 cpi->mb_row_ei[i].mb.error_bins[c_idx]; 903 904 /* add up counts for each thread */ 905 sum_coef_counts(x, &cpi->mb_row_ei[i].mb); 906 } 907 908 } 909 else 910 #endif 911 { 912 913 /* for each macroblock row in image */ 914 for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) 915 { 916 vp8_zero(cm->left_context) 917 918 #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING 919 tp = cpi->tok; 920 #endif 921 922 encode_mb_row(cpi, cm, mb_row, x, xd, &tp, segment_counts, &totalrate); 923 924 /* adjust to the next row of mbs */ 925 x->src.y_buffer += 16 * x->src.y_stride - 16 * cm->mb_cols; 926 x->src.u_buffer += 8 * x->src.uv_stride - 8 * cm->mb_cols; 927 x->src.v_buffer += 8 * x->src.uv_stride - 8 * cm->mb_cols; 928 } 929 930 cpi->tok_count = (unsigned int)(tp - cpi->tok); 931 } 932 933 #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING 934 { 935 int i; 936 for(i = 0; i < num_part; i++) 937 { 938 vp8_stop_encode(&bc[i]); 939 cpi->partition_sz[i+1] = bc[i].pos; 940 } 941 } 942 #endif 943 944 vpx_usec_timer_mark(&emr_timer); 945 cpi->time_encode_mb_row += vpx_usec_timer_elapsed(&emr_timer); 946 } 947 948 949 // Work out the segment probabilities if segmentation is enabled 950 // and needs to be updated 951 if (xd->segmentation_enabled && xd->update_mb_segmentation_map) 952 { 953 int tot_count; 954 int i; 955 956 /* Set to defaults */ 957 vpx_memset(xd->mb_segment_tree_probs, 255 , sizeof(xd->mb_segment_tree_probs)); 958 959 tot_count = segment_counts[0] + segment_counts[1] + segment_counts[2] + segment_counts[3]; 960 961 if (tot_count) 962 { 963 xd->mb_segment_tree_probs[0] = ((segment_counts[0] + segment_counts[1]) * 255) / tot_count; 964 965 tot_count = segment_counts[0] + segment_counts[1]; 966 967 if (tot_count > 0) 968 { 969 xd->mb_segment_tree_probs[1] = (segment_counts[0] * 255) / tot_count; 970 } 971 972 tot_count = segment_counts[2] + segment_counts[3]; 973 974 if (tot_count > 0) 975 xd->mb_segment_tree_probs[2] = (segment_counts[2] * 255) / tot_count; 976 977 /* Zero probabilities not allowed */ 978 for (i = 0; i < MB_FEATURE_TREE_PROBS; i ++) 979 { 980 if (xd->mb_segment_tree_probs[i] == 0) 981 xd->mb_segment_tree_probs[i] = 1; 982 } 983 } 984 } 985 986 /* projected_frame_size in units of BYTES */ 987 cpi->projected_frame_size = totalrate >> 8; 988 989 /* Make a note of the percentage MBs coded Intra. */ 990 if (cm->frame_type == KEY_FRAME) 991 { 992 cpi->this_frame_percent_intra = 100; 993 } 994 else 995 { 996 int tot_modes; 997 998 tot_modes = cpi->mb.count_mb_ref_frame_usage[INTRA_FRAME] 999 + cpi->mb.count_mb_ref_frame_usage[LAST_FRAME] 1000 + cpi->mb.count_mb_ref_frame_usage[GOLDEN_FRAME] 1001 + cpi->mb.count_mb_ref_frame_usage[ALTREF_FRAME]; 1002 1003 if (tot_modes) 1004 cpi->this_frame_percent_intra = 1005 cpi->mb.count_mb_ref_frame_usage[INTRA_FRAME] * 100 / tot_modes; 1006 1007 } 1008 1009 #if ! CONFIG_REALTIME_ONLY 1010 /* Adjust the projected reference frame usage probability numbers to 1011 * reflect what we have just seen. This may be useful when we make 1012 * multiple iterations of the recode loop rather than continuing to use 1013 * values from the previous frame. 1014 */ 1015 if ((cm->frame_type != KEY_FRAME) && ((cpi->oxcf.number_of_layers > 1) || 1016 (!cm->refresh_alt_ref_frame && !cm->refresh_golden_frame))) 1017 { 1018 vp8_convert_rfct_to_prob(cpi); 1019 } 1020 #endif 1021 } 1022 void vp8_setup_block_ptrs(MACROBLOCK *x) 1023 { 1024 int r, c; 1025 int i; 1026 1027 for (r = 0; r < 4; r++) 1028 { 1029 for (c = 0; c < 4; c++) 1030 { 1031 x->block[r*4+c].src_diff = x->src_diff + r * 4 * 16 + c * 4; 1032 } 1033 } 1034 1035 for (r = 0; r < 2; r++) 1036 { 1037 for (c = 0; c < 2; c++) 1038 { 1039 x->block[16 + r*2+c].src_diff = x->src_diff + 256 + r * 4 * 8 + c * 4; 1040 } 1041 } 1042 1043 1044 for (r = 0; r < 2; r++) 1045 { 1046 for (c = 0; c < 2; c++) 1047 { 1048 x->block[20 + r*2+c].src_diff = x->src_diff + 320 + r * 4 * 8 + c * 4; 1049 } 1050 } 1051 1052 x->block[24].src_diff = x->src_diff + 384; 1053 1054 1055 for (i = 0; i < 25; i++) 1056 { 1057 x->block[i].coeff = x->coeff + i * 16; 1058 } 1059 } 1060 1061 void vp8_build_block_offsets(MACROBLOCK *x) 1062 { 1063 int block = 0; 1064 int br, bc; 1065 1066 vp8_build_block_doffsets(&x->e_mbd); 1067 1068 /* y blocks */ 1069 x->thismb_ptr = &x->thismb[0]; 1070 for (br = 0; br < 4; br++) 1071 { 1072 for (bc = 0; bc < 4; bc++) 1073 { 1074 BLOCK *this_block = &x->block[block]; 1075 this_block->base_src = &x->thismb_ptr; 1076 this_block->src_stride = 16; 1077 this_block->src = 4 * br * 16 + 4 * bc; 1078 ++block; 1079 } 1080 } 1081 1082 /* u blocks */ 1083 for (br = 0; br < 2; br++) 1084 { 1085 for (bc = 0; bc < 2; bc++) 1086 { 1087 BLOCK *this_block = &x->block[block]; 1088 this_block->base_src = &x->src.u_buffer; 1089 this_block->src_stride = x->src.uv_stride; 1090 this_block->src = 4 * br * this_block->src_stride + 4 * bc; 1091 ++block; 1092 } 1093 } 1094 1095 /* v blocks */ 1096 for (br = 0; br < 2; br++) 1097 { 1098 for (bc = 0; bc < 2; bc++) 1099 { 1100 BLOCK *this_block = &x->block[block]; 1101 this_block->base_src = &x->src.v_buffer; 1102 this_block->src_stride = x->src.uv_stride; 1103 this_block->src = 4 * br * this_block->src_stride + 4 * bc; 1104 ++block; 1105 } 1106 } 1107 } 1108 1109 static void sum_intra_stats(VP8_COMP *cpi, MACROBLOCK *x) 1110 { 1111 const MACROBLOCKD *xd = & x->e_mbd; 1112 const MB_PREDICTION_MODE m = xd->mode_info_context->mbmi.mode; 1113 const MB_PREDICTION_MODE uvm = xd->mode_info_context->mbmi.uv_mode; 1114 1115 #ifdef MODE_STATS 1116 const int is_key = cpi->common.frame_type == KEY_FRAME; 1117 1118 ++ (is_key ? uv_modes : inter_uv_modes)[uvm]; 1119 1120 if (m == B_PRED) 1121 { 1122 unsigned int *const bct = is_key ? b_modes : inter_b_modes; 1123 1124 int b = 0; 1125 1126 do 1127 { 1128 ++ bct[xd->block[b].bmi.mode]; 1129 } 1130 while (++b < 16); 1131 } 1132 1133 #endif 1134 1135 ++x->ymode_count[m]; 1136 ++x->uv_mode_count[uvm]; 1137 1138 } 1139 1140 /* Experimental stub function to create a per MB zbin adjustment based on 1141 * some previously calculated measure of MB activity. 1142 */ 1143 static void adjust_act_zbin( VP8_COMP *cpi, MACROBLOCK *x ) 1144 { 1145 #if USE_ACT_INDEX 1146 x->act_zbin_adj = *(x->mb_activity_ptr); 1147 #else 1148 int64_t a; 1149 int64_t b; 1150 int64_t act = *(x->mb_activity_ptr); 1151 1152 /* Apply the masking to the RD multiplier. */ 1153 a = act + 4*cpi->activity_avg; 1154 b = 4*act + cpi->activity_avg; 1155 1156 if ( act > cpi->activity_avg ) 1157 x->act_zbin_adj = (int)(((int64_t)b + (a>>1))/a) - 1; 1158 else 1159 x->act_zbin_adj = 1 - (int)(((int64_t)a + (b>>1))/b); 1160 #endif 1161 } 1162 1163 int vp8cx_encode_intra_macroblock(VP8_COMP *cpi, MACROBLOCK *x, 1164 TOKENEXTRA **t) 1165 { 1166 MACROBLOCKD *xd = &x->e_mbd; 1167 int rate; 1168 1169 if (cpi->sf.RD && cpi->compressor_speed != 2) 1170 vp8_rd_pick_intra_mode(x, &rate); 1171 else 1172 vp8_pick_intra_mode(x, &rate); 1173 1174 if(cpi->oxcf.tuning == VP8_TUNE_SSIM) 1175 { 1176 adjust_act_zbin( cpi, x ); 1177 vp8_update_zbin_extra(cpi, x); 1178 } 1179 1180 if (x->e_mbd.mode_info_context->mbmi.mode == B_PRED) 1181 vp8_encode_intra4x4mby(x); 1182 else 1183 vp8_encode_intra16x16mby(x); 1184 1185 vp8_encode_intra16x16mbuv(x); 1186 1187 sum_intra_stats(cpi, x); 1188 1189 vp8_tokenize_mb(cpi, x, t); 1190 1191 if (xd->mode_info_context->mbmi.mode != B_PRED) 1192 vp8_inverse_transform_mby(xd); 1193 1194 vp8_dequant_idct_add_uv_block 1195 (xd->qcoeff+16*16, xd->dequant_uv, 1196 xd->dst.u_buffer, xd->dst.v_buffer, 1197 xd->dst.uv_stride, xd->eobs+16); 1198 return rate; 1199 } 1200 #ifdef SPEEDSTATS 1201 extern int cnt_pm; 1202 #endif 1203 1204 extern void vp8_fix_contexts(MACROBLOCKD *x); 1205 1206 int vp8cx_encode_inter_macroblock 1207 ( 1208 VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t, 1209 int recon_yoffset, int recon_uvoffset, 1210 int mb_row, int mb_col 1211 ) 1212 { 1213 MACROBLOCKD *const xd = &x->e_mbd; 1214 int intra_error = 0; 1215 int rate; 1216 int distortion; 1217 1218 x->skip = 0; 1219 1220 if (xd->segmentation_enabled) 1221 x->encode_breakout = cpi->segment_encode_breakout[xd->mode_info_context->mbmi.segment_id]; 1222 else 1223 x->encode_breakout = cpi->oxcf.encode_breakout; 1224 1225 #if CONFIG_TEMPORAL_DENOISING 1226 /* Reset the best sse mode/mv for each macroblock. */ 1227 x->best_reference_frame = INTRA_FRAME; 1228 x->best_zeromv_reference_frame = INTRA_FRAME; 1229 x->best_sse_inter_mode = 0; 1230 x->best_sse_mv.as_int = 0; 1231 x->need_to_clamp_best_mvs = 0; 1232 #endif 1233 1234 if (cpi->sf.RD) 1235 { 1236 int zbin_mode_boost_enabled = x->zbin_mode_boost_enabled; 1237 1238 /* Are we using the fast quantizer for the mode selection? */ 1239 if(cpi->sf.use_fastquant_for_pick) 1240 { 1241 x->quantize_b = vp8_fast_quantize_b; 1242 x->quantize_b_pair = vp8_fast_quantize_b_pair; 1243 1244 /* the fast quantizer does not use zbin_extra, so 1245 * do not recalculate */ 1246 x->zbin_mode_boost_enabled = 0; 1247 } 1248 vp8_rd_pick_inter_mode(cpi, x, recon_yoffset, recon_uvoffset, &rate, 1249 &distortion, &intra_error); 1250 1251 /* switch back to the regular quantizer for the encode */ 1252 if (cpi->sf.improved_quant) 1253 { 1254 x->quantize_b = vp8_regular_quantize_b; 1255 x->quantize_b_pair = vp8_regular_quantize_b_pair; 1256 } 1257 1258 /* restore cpi->zbin_mode_boost_enabled */ 1259 x->zbin_mode_boost_enabled = zbin_mode_boost_enabled; 1260 1261 } 1262 else 1263 { 1264 vp8_pick_inter_mode(cpi, x, recon_yoffset, recon_uvoffset, &rate, 1265 &distortion, &intra_error, mb_row, mb_col); 1266 } 1267 1268 x->prediction_error += distortion; 1269 x->intra_error += intra_error; 1270 1271 if(cpi->oxcf.tuning == VP8_TUNE_SSIM) 1272 { 1273 /* Adjust the zbin based on this MB rate. */ 1274 adjust_act_zbin( cpi, x ); 1275 } 1276 1277 #if 0 1278 /* Experimental RD code */ 1279 cpi->frame_distortion += distortion; 1280 cpi->last_mb_distortion = distortion; 1281 #endif 1282 1283 /* MB level adjutment to quantizer setup */ 1284 if (xd->segmentation_enabled) 1285 { 1286 /* If cyclic update enabled */ 1287 if (cpi->current_layer == 0 && cpi->cyclic_refresh_mode_enabled) 1288 { 1289 /* Clear segment_id back to 0 if not coded (last frame 0,0) */ 1290 if ((xd->mode_info_context->mbmi.segment_id == 1) && 1291 ((xd->mode_info_context->mbmi.ref_frame != LAST_FRAME) || (xd->mode_info_context->mbmi.mode != ZEROMV))) 1292 { 1293 xd->mode_info_context->mbmi.segment_id = 0; 1294 1295 /* segment_id changed, so update */ 1296 vp8cx_mb_init_quantizer(cpi, x, 1); 1297 } 1298 } 1299 } 1300 1301 { 1302 /* Experimental code. 1303 * Special case for gf and arf zeromv modes, for 1 temporal layer. 1304 * Increase zbin size to supress noise. 1305 */ 1306 x->zbin_mode_boost = 0; 1307 if (x->zbin_mode_boost_enabled) 1308 { 1309 if ( xd->mode_info_context->mbmi.ref_frame != INTRA_FRAME ) 1310 { 1311 if (xd->mode_info_context->mbmi.mode == ZEROMV) 1312 { 1313 if (xd->mode_info_context->mbmi.ref_frame != LAST_FRAME && 1314 cpi->oxcf.number_of_layers == 1) 1315 x->zbin_mode_boost = GF_ZEROMV_ZBIN_BOOST; 1316 else 1317 x->zbin_mode_boost = LF_ZEROMV_ZBIN_BOOST; 1318 } 1319 else if (xd->mode_info_context->mbmi.mode == SPLITMV) 1320 x->zbin_mode_boost = 0; 1321 else 1322 x->zbin_mode_boost = MV_ZBIN_BOOST; 1323 } 1324 } 1325 1326 /* The fast quantizer doesn't use zbin_extra, only do so with 1327 * the regular quantizer. */ 1328 if (cpi->sf.improved_quant) 1329 vp8_update_zbin_extra(cpi, x); 1330 } 1331 1332 x->count_mb_ref_frame_usage[xd->mode_info_context->mbmi.ref_frame] ++; 1333 1334 if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME) 1335 { 1336 vp8_encode_intra16x16mbuv(x); 1337 1338 if (xd->mode_info_context->mbmi.mode == B_PRED) 1339 { 1340 vp8_encode_intra4x4mby(x); 1341 } 1342 else 1343 { 1344 vp8_encode_intra16x16mby(x); 1345 } 1346 1347 sum_intra_stats(cpi, x); 1348 } 1349 else 1350 { 1351 int ref_fb_idx; 1352 1353 if (xd->mode_info_context->mbmi.ref_frame == LAST_FRAME) 1354 ref_fb_idx = cpi->common.lst_fb_idx; 1355 else if (xd->mode_info_context->mbmi.ref_frame == GOLDEN_FRAME) 1356 ref_fb_idx = cpi->common.gld_fb_idx; 1357 else 1358 ref_fb_idx = cpi->common.alt_fb_idx; 1359 1360 xd->pre.y_buffer = cpi->common.yv12_fb[ref_fb_idx].y_buffer + recon_yoffset; 1361 xd->pre.u_buffer = cpi->common.yv12_fb[ref_fb_idx].u_buffer + recon_uvoffset; 1362 xd->pre.v_buffer = cpi->common.yv12_fb[ref_fb_idx].v_buffer + recon_uvoffset; 1363 1364 if (!x->skip) 1365 { 1366 vp8_encode_inter16x16(x); 1367 } 1368 else 1369 vp8_build_inter16x16_predictors_mb(xd, xd->dst.y_buffer, 1370 xd->dst.u_buffer, xd->dst.v_buffer, 1371 xd->dst.y_stride, xd->dst.uv_stride); 1372 1373 } 1374 1375 if (!x->skip) 1376 { 1377 vp8_tokenize_mb(cpi, x, t); 1378 1379 if (xd->mode_info_context->mbmi.mode != B_PRED) 1380 vp8_inverse_transform_mby(xd); 1381 1382 vp8_dequant_idct_add_uv_block 1383 (xd->qcoeff+16*16, xd->dequant_uv, 1384 xd->dst.u_buffer, xd->dst.v_buffer, 1385 xd->dst.uv_stride, xd->eobs+16); 1386 } 1387 else 1388 { 1389 /* always set mb_skip_coeff as it is needed by the loopfilter */ 1390 xd->mode_info_context->mbmi.mb_skip_coeff = 1; 1391 1392 if (cpi->common.mb_no_coeff_skip) 1393 { 1394 x->skip_true_count ++; 1395 vp8_fix_contexts(xd); 1396 } 1397 else 1398 { 1399 vp8_stuff_mb(cpi, x, t); 1400 } 1401 } 1402 1403 return rate; 1404 } 1405
