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 37extern void vp8_stuff_mb(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t) ; 38extern void vp8_calc_ref_frame_costs(int *ref_frame_cost, 39 int prob_intra, 40 int prob_last, 41 int prob_garf 42 ); 43extern void vp8_convert_rfct_to_prob(VP8_COMP *const cpi); 44extern void vp8cx_initialize_me_consts(VP8_COMP *cpi, int QIndex); 45extern void vp8_auto_select_speed(VP8_COMP *cpi); 46extern void vp8cx_init_mbrthread_data(VP8_COMP *cpi, 47 MACROBLOCK *x, 48 MB_ROW_COMP *mbr_ei, 49 int count); 50static void adjust_act_zbin( VP8_COMP *cpi, MACROBLOCK *x ); 51 52#ifdef MODE_STATS 53unsigned int inter_y_modes[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 54unsigned int inter_uv_modes[4] = {0, 0, 0, 0}; 55unsigned int inter_b_modes[15] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 56unsigned int y_modes[5] = {0, 0, 0, 0, 0}; 57unsigned int uv_modes[4] = {0, 0, 0, 0}; 58unsigned 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 */ 74static 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. */ 81static 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. */ 104static 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 115static 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 141static 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 */ 204static 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 */ 262static 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 */ 336void 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 360static 361void 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 // Keep track of how many (consecutive) times a block is coded 526 // as ZEROMV_LASTREF, for base layer frames. 527 // Reset to 0 if its coded as anything else. 528 if (cpi->current_layer == 0) { 529 if (xd->mode_info_context->mbmi.mode == ZEROMV && 530 xd->mode_info_context->mbmi.ref_frame == LAST_FRAME) { 531 // Increment, check for wrap-around. 532 if (cpi->consec_zero_last[map_index+mb_col] < 255) 533 cpi->consec_zero_last[map_index+mb_col] += 1; 534 } else { 535 cpi->consec_zero_last[map_index+mb_col] = 0; 536 } 537 } 538 539 /* Special case code for cyclic refresh 540 * If cyclic update enabled then copy xd->mbmi.segment_id; (which 541 * may have been updated based on mode during 542 * vp8cx_encode_inter_macroblock()) back into the global 543 * segmentation map 544 */ 545 if ((cpi->current_layer == 0) && 546 (cpi->cyclic_refresh_mode_enabled && 547 xd->segmentation_enabled)) 548 { 549 cpi->segmentation_map[map_index+mb_col] = xd->mode_info_context->mbmi.segment_id; 550 551 /* If the block has been refreshed mark it as clean (the 552 * magnitude of the -ve influences how long it will be before 553 * we consider another refresh): 554 * Else if it was coded (last frame 0,0) and has not already 555 * been refreshed then mark it as a candidate for cleanup 556 * next time (marked 0) else mark it as dirty (1). 557 */ 558 if (xd->mode_info_context->mbmi.segment_id) 559 cpi->cyclic_refresh_map[map_index+mb_col] = -1; 560 else if ((xd->mode_info_context->mbmi.mode == ZEROMV) && (xd->mode_info_context->mbmi.ref_frame == LAST_FRAME)) 561 { 562 if (cpi->cyclic_refresh_map[map_index+mb_col] == 1) 563 cpi->cyclic_refresh_map[map_index+mb_col] = 0; 564 } 565 else 566 cpi->cyclic_refresh_map[map_index+mb_col] = 1; 567 568 } 569 } 570 571 cpi->tplist[mb_row].stop = *tp; 572 573#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING 574 /* pack tokens for this MB */ 575 { 576 int tok_count = *tp - tp_start; 577 pack_tokens(w, tp_start, tok_count); 578 } 579#endif 580 /* Increment pointer into gf usage flags structure. */ 581 x->gf_active_ptr++; 582 583 /* Increment the activity mask pointers. */ 584 x->mb_activity_ptr++; 585 586 /* adjust to the next column of macroblocks */ 587 x->src.y_buffer += 16; 588 x->src.u_buffer += 8; 589 x->src.v_buffer += 8; 590 591 recon_yoffset += 16; 592 recon_uvoffset += 8; 593 594 /* Keep track of segment usage */ 595 segment_counts[xd->mode_info_context->mbmi.segment_id] ++; 596 597 /* skip to next mb */ 598 xd->mode_info_context++; 599 x->partition_info++; 600 xd->above_context++; 601 } 602 603 /* extend the recon for intra prediction */ 604 vp8_extend_mb_row( &cm->yv12_fb[dst_fb_idx], 605 xd->dst.y_buffer + 16, 606 xd->dst.u_buffer + 8, 607 xd->dst.v_buffer + 8); 608 609#if CONFIG_MULTITHREAD 610 if (cpi->b_multi_threaded != 0) 611 *current_mb_col = rightmost_col; 612#endif 613 614 /* this is to account for the border */ 615 xd->mode_info_context++; 616 x->partition_info++; 617} 618 619static void init_encode_frame_mb_context(VP8_COMP *cpi) 620{ 621 MACROBLOCK *const x = & cpi->mb; 622 VP8_COMMON *const cm = & cpi->common; 623 MACROBLOCKD *const xd = & x->e_mbd; 624 625 /* GF active flags data structure */ 626 x->gf_active_ptr = (signed char *)cpi->gf_active_flags; 627 628 /* Activity map pointer */ 629 x->mb_activity_ptr = cpi->mb_activity_map; 630 631 x->act_zbin_adj = 0; 632 633 x->partition_info = x->pi; 634 635 xd->mode_info_context = cm->mi; 636 xd->mode_info_stride = cm->mode_info_stride; 637 638 xd->frame_type = cm->frame_type; 639 640 /* reset intra mode contexts */ 641 if (cm->frame_type == KEY_FRAME) 642 vp8_init_mbmode_probs(cm); 643 644 /* Copy data over into macro block data structures. */ 645 x->src = * cpi->Source; 646 xd->pre = cm->yv12_fb[cm->lst_fb_idx]; 647 xd->dst = cm->yv12_fb[cm->new_fb_idx]; 648 649 /* set up frame for intra coded blocks */ 650 vp8_setup_intra_recon(&cm->yv12_fb[cm->new_fb_idx]); 651 652 vp8_build_block_offsets(x); 653 654 xd->mode_info_context->mbmi.mode = DC_PRED; 655 xd->mode_info_context->mbmi.uv_mode = DC_PRED; 656 657 xd->left_context = &cm->left_context; 658 659 x->mvc = cm->fc.mvc; 660 661 vpx_memset(cm->above_context, 0, 662 sizeof(ENTROPY_CONTEXT_PLANES) * cm->mb_cols); 663 664 /* Special case treatment when GF and ARF are not sensible options 665 * for reference 666 */ 667 if (cpi->ref_frame_flags == VP8_LAST_FRAME) 668 vp8_calc_ref_frame_costs(x->ref_frame_cost, 669 cpi->prob_intra_coded,255,128); 670 else if ((cpi->oxcf.number_of_layers > 1) && 671 (cpi->ref_frame_flags == VP8_GOLD_FRAME)) 672 vp8_calc_ref_frame_costs(x->ref_frame_cost, 673 cpi->prob_intra_coded,1,255); 674 else if ((cpi->oxcf.number_of_layers > 1) && 675 (cpi->ref_frame_flags == VP8_ALTR_FRAME)) 676 vp8_calc_ref_frame_costs(x->ref_frame_cost, 677 cpi->prob_intra_coded,1,1); 678 else 679 vp8_calc_ref_frame_costs(x->ref_frame_cost, 680 cpi->prob_intra_coded, 681 cpi->prob_last_coded, 682 cpi->prob_gf_coded); 683 684 xd->fullpixel_mask = 0xffffffff; 685 if(cm->full_pixel) 686 xd->fullpixel_mask = 0xfffffff8; 687 688 vp8_zero(x->coef_counts); 689 vp8_zero(x->ymode_count); 690 vp8_zero(x->uv_mode_count) 691 x->prediction_error = 0; 692 x->intra_error = 0; 693 vp8_zero(x->count_mb_ref_frame_usage); 694} 695 696static void sum_coef_counts(MACROBLOCK *x, MACROBLOCK *x_thread) 697{ 698 int i = 0; 699 do 700 { 701 int j = 0; 702 do 703 { 704 int k = 0; 705 do 706 { 707 /* at every context */ 708 709 /* calc probs and branch cts for this frame only */ 710 int t = 0; /* token/prob index */ 711 712 do 713 { 714 x->coef_counts [i][j][k][t] += 715 x_thread->coef_counts [i][j][k][t]; 716 } 717 while (++t < ENTROPY_NODES); 718 } 719 while (++k < PREV_COEF_CONTEXTS); 720 } 721 while (++j < COEF_BANDS); 722 } 723 while (++i < BLOCK_TYPES); 724} 725 726void vp8_encode_frame(VP8_COMP *cpi) 727{ 728 int mb_row; 729 MACROBLOCK *const x = & cpi->mb; 730 VP8_COMMON *const cm = & cpi->common; 731 MACROBLOCKD *const xd = & x->e_mbd; 732 TOKENEXTRA *tp = cpi->tok; 733 int segment_counts[MAX_MB_SEGMENTS]; 734 int totalrate; 735#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING 736 BOOL_CODER * bc = &cpi->bc[1]; /* bc[0] is for control partition */ 737 const int num_part = (1 << cm->multi_token_partition); 738#endif 739 740 vpx_memset(segment_counts, 0, sizeof(segment_counts)); 741 totalrate = 0; 742 743 if (cpi->compressor_speed == 2) 744 { 745 if (cpi->oxcf.cpu_used < 0) 746 cpi->Speed = -(cpi->oxcf.cpu_used); 747 else 748 vp8_auto_select_speed(cpi); 749 } 750 751 /* Functions setup for all frame types so we can use MC in AltRef */ 752 if(!cm->use_bilinear_mc_filter) 753 { 754 xd->subpixel_predict = vp8_sixtap_predict4x4; 755 xd->subpixel_predict8x4 = vp8_sixtap_predict8x4; 756 xd->subpixel_predict8x8 = vp8_sixtap_predict8x8; 757 xd->subpixel_predict16x16 = vp8_sixtap_predict16x16; 758 } 759 else 760 { 761 xd->subpixel_predict = vp8_bilinear_predict4x4; 762 xd->subpixel_predict8x4 = vp8_bilinear_predict8x4; 763 xd->subpixel_predict8x8 = vp8_bilinear_predict8x8; 764 xd->subpixel_predict16x16 = vp8_bilinear_predict16x16; 765 } 766 767 cpi->mb.skip_true_count = 0; 768 cpi->tok_count = 0; 769 770#if 0 771 /* Experimental code */ 772 cpi->frame_distortion = 0; 773 cpi->last_mb_distortion = 0; 774#endif 775 776 xd->mode_info_context = cm->mi; 777 778 vp8_zero(cpi->mb.MVcount); 779 780 vp8cx_frame_init_quantizer(cpi); 781 782 vp8_initialize_rd_consts(cpi, x, 783 vp8_dc_quant(cm->base_qindex, cm->y1dc_delta_q)); 784 785 vp8cx_initialize_me_consts(cpi, cm->base_qindex); 786 787 if(cpi->oxcf.tuning == VP8_TUNE_SSIM) 788 { 789 /* Initialize encode frame context. */ 790 init_encode_frame_mb_context(cpi); 791 792 /* Build a frame level activity map */ 793 build_activity_map(cpi); 794 } 795 796 /* re-init encode frame context. */ 797 init_encode_frame_mb_context(cpi); 798 799#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING 800 { 801 int i; 802 for(i = 0; i < num_part; i++) 803 { 804 vp8_start_encode(&bc[i], cpi->partition_d[i + 1], 805 cpi->partition_d_end[i + 1]); 806 bc[i].error = &cm->error; 807 } 808 } 809 810#endif 811 812 { 813 struct vpx_usec_timer emr_timer; 814 vpx_usec_timer_start(&emr_timer); 815 816#if CONFIG_MULTITHREAD 817 if (cpi->b_multi_threaded) 818 { 819 int i; 820 821 vp8cx_init_mbrthread_data(cpi, x, cpi->mb_row_ei, 822 cpi->encoding_thread_count); 823 824 for (i = 0; i < cm->mb_rows; i++) 825 cpi->mt_current_mb_col[i] = -1; 826 827 for (i = 0; i < cpi->encoding_thread_count; i++) 828 { 829 sem_post(&cpi->h_event_start_encoding[i]); 830 } 831 832 for (mb_row = 0; mb_row < cm->mb_rows; mb_row += (cpi->encoding_thread_count + 1)) 833 { 834 vp8_zero(cm->left_context) 835 836#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING 837 tp = cpi->tok; 838#else 839 tp = cpi->tok + mb_row * (cm->mb_cols * 16 * 24); 840#endif 841 842 encode_mb_row(cpi, cm, mb_row, x, xd, &tp, segment_counts, &totalrate); 843 844 /* adjust to the next row of mbs */ 845 x->src.y_buffer += 16 * x->src.y_stride * (cpi->encoding_thread_count + 1) - 16 * cm->mb_cols; 846 x->src.u_buffer += 8 * x->src.uv_stride * (cpi->encoding_thread_count + 1) - 8 * cm->mb_cols; 847 x->src.v_buffer += 8 * x->src.uv_stride * (cpi->encoding_thread_count + 1) - 8 * cm->mb_cols; 848 849 xd->mode_info_context += xd->mode_info_stride * cpi->encoding_thread_count; 850 x->partition_info += xd->mode_info_stride * cpi->encoding_thread_count; 851 x->gf_active_ptr += cm->mb_cols * cpi->encoding_thread_count; 852 853 if(mb_row == cm->mb_rows - 1) 854 { 855 sem_post(&cpi->h_event_end_encoding); /* signal frame encoding end */ 856 } 857 } 858 859 sem_wait(&cpi->h_event_end_encoding); /* wait for other threads to finish */ 860 861 for (mb_row = 0; mb_row < cm->mb_rows; mb_row ++) 862 { 863 cpi->tok_count += (unsigned int) 864 (cpi->tplist[mb_row].stop - cpi->tplist[mb_row].start); 865 } 866 867 if (xd->segmentation_enabled) 868 { 869 int j; 870 871 if (xd->segmentation_enabled) 872 { 873 for (i = 0; i < cpi->encoding_thread_count; i++) 874 { 875 for (j = 0; j < 4; j++) 876 segment_counts[j] += cpi->mb_row_ei[i].segment_counts[j]; 877 } 878 } 879 } 880 881 for (i = 0; i < cpi->encoding_thread_count; i++) 882 { 883 int mode_count; 884 int c_idx; 885 totalrate += cpi->mb_row_ei[i].totalrate; 886 887 cpi->mb.skip_true_count += cpi->mb_row_ei[i].mb.skip_true_count; 888 889 for(mode_count = 0; mode_count < VP8_YMODES; mode_count++) 890 cpi->mb.ymode_count[mode_count] += 891 cpi->mb_row_ei[i].mb.ymode_count[mode_count]; 892 893 for(mode_count = 0; mode_count < VP8_UV_MODES; mode_count++) 894 cpi->mb.uv_mode_count[mode_count] += 895 cpi->mb_row_ei[i].mb.uv_mode_count[mode_count]; 896 897 for(c_idx = 0; c_idx < MVvals; c_idx++) 898 { 899 cpi->mb.MVcount[0][c_idx] += 900 cpi->mb_row_ei[i].mb.MVcount[0][c_idx]; 901 cpi->mb.MVcount[1][c_idx] += 902 cpi->mb_row_ei[i].mb.MVcount[1][c_idx]; 903 } 904 905 cpi->mb.prediction_error += 906 cpi->mb_row_ei[i].mb.prediction_error; 907 cpi->mb.intra_error += cpi->mb_row_ei[i].mb.intra_error; 908 909 for(c_idx = 0; c_idx < MAX_REF_FRAMES; c_idx++) 910 cpi->mb.count_mb_ref_frame_usage[c_idx] += 911 cpi->mb_row_ei[i].mb.count_mb_ref_frame_usage[c_idx]; 912 913 for(c_idx = 0; c_idx < MAX_ERROR_BINS; c_idx++) 914 cpi->mb.error_bins[c_idx] += 915 cpi->mb_row_ei[i].mb.error_bins[c_idx]; 916 917 /* add up counts for each thread */ 918 sum_coef_counts(x, &cpi->mb_row_ei[i].mb); 919 } 920 921 } 922 else 923#endif 924 { 925 926 /* for each macroblock row in image */ 927 for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) 928 { 929 vp8_zero(cm->left_context) 930 931#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING 932 tp = cpi->tok; 933#endif 934 935 encode_mb_row(cpi, cm, mb_row, x, xd, &tp, segment_counts, &totalrate); 936 937 /* adjust to the next row of mbs */ 938 x->src.y_buffer += 16 * x->src.y_stride - 16 * cm->mb_cols; 939 x->src.u_buffer += 8 * x->src.uv_stride - 8 * cm->mb_cols; 940 x->src.v_buffer += 8 * x->src.uv_stride - 8 * cm->mb_cols; 941 } 942 943 cpi->tok_count = (unsigned int)(tp - cpi->tok); 944 } 945 946#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING 947 { 948 int i; 949 for(i = 0; i < num_part; i++) 950 { 951 vp8_stop_encode(&bc[i]); 952 cpi->partition_sz[i+1] = bc[i].pos; 953 } 954 } 955#endif 956 957 vpx_usec_timer_mark(&emr_timer); 958 cpi->time_encode_mb_row += vpx_usec_timer_elapsed(&emr_timer); 959 } 960 961 962 // Work out the segment probabilities if segmentation is enabled 963 // and needs to be updated 964 if (xd->segmentation_enabled && xd->update_mb_segmentation_map) 965 { 966 int tot_count; 967 int i; 968 969 /* Set to defaults */ 970 vpx_memset(xd->mb_segment_tree_probs, 255 , sizeof(xd->mb_segment_tree_probs)); 971 972 tot_count = segment_counts[0] + segment_counts[1] + segment_counts[2] + segment_counts[3]; 973 974 if (tot_count) 975 { 976 xd->mb_segment_tree_probs[0] = ((segment_counts[0] + segment_counts[1]) * 255) / tot_count; 977 978 tot_count = segment_counts[0] + segment_counts[1]; 979 980 if (tot_count > 0) 981 { 982 xd->mb_segment_tree_probs[1] = (segment_counts[0] * 255) / tot_count; 983 } 984 985 tot_count = segment_counts[2] + segment_counts[3]; 986 987 if (tot_count > 0) 988 xd->mb_segment_tree_probs[2] = (segment_counts[2] * 255) / tot_count; 989 990 /* Zero probabilities not allowed */ 991 for (i = 0; i < MB_FEATURE_TREE_PROBS; i ++) 992 { 993 if (xd->mb_segment_tree_probs[i] == 0) 994 xd->mb_segment_tree_probs[i] = 1; 995 } 996 } 997 } 998 999 /* projected_frame_size in units of BYTES */ 1000 cpi->projected_frame_size = totalrate >> 8; 1001 1002 /* Make a note of the percentage MBs coded Intra. */ 1003 if (cm->frame_type == KEY_FRAME) 1004 { 1005 cpi->this_frame_percent_intra = 100; 1006 } 1007 else 1008 { 1009 int tot_modes; 1010 1011 tot_modes = cpi->mb.count_mb_ref_frame_usage[INTRA_FRAME] 1012 + cpi->mb.count_mb_ref_frame_usage[LAST_FRAME] 1013 + cpi->mb.count_mb_ref_frame_usage[GOLDEN_FRAME] 1014 + cpi->mb.count_mb_ref_frame_usage[ALTREF_FRAME]; 1015 1016 if (tot_modes) 1017 cpi->this_frame_percent_intra = 1018 cpi->mb.count_mb_ref_frame_usage[INTRA_FRAME] * 100 / tot_modes; 1019 1020 } 1021 1022#if ! CONFIG_REALTIME_ONLY 1023 /* Adjust the projected reference frame usage probability numbers to 1024 * reflect what we have just seen. This may be useful when we make 1025 * multiple iterations of the recode loop rather than continuing to use 1026 * values from the previous frame. 1027 */ 1028 if ((cm->frame_type != KEY_FRAME) && ((cpi->oxcf.number_of_layers > 1) || 1029 (!cm->refresh_alt_ref_frame && !cm->refresh_golden_frame))) 1030 { 1031 vp8_convert_rfct_to_prob(cpi); 1032 } 1033#endif 1034} 1035void vp8_setup_block_ptrs(MACROBLOCK *x) 1036{ 1037 int r, c; 1038 int i; 1039 1040 for (r = 0; r < 4; r++) 1041 { 1042 for (c = 0; c < 4; c++) 1043 { 1044 x->block[r*4+c].src_diff = x->src_diff + r * 4 * 16 + c * 4; 1045 } 1046 } 1047 1048 for (r = 0; r < 2; r++) 1049 { 1050 for (c = 0; c < 2; c++) 1051 { 1052 x->block[16 + r*2+c].src_diff = x->src_diff + 256 + r * 4 * 8 + c * 4; 1053 } 1054 } 1055 1056 1057 for (r = 0; r < 2; r++) 1058 { 1059 for (c = 0; c < 2; c++) 1060 { 1061 x->block[20 + r*2+c].src_diff = x->src_diff + 320 + r * 4 * 8 + c * 4; 1062 } 1063 } 1064 1065 x->block[24].src_diff = x->src_diff + 384; 1066 1067 1068 for (i = 0; i < 25; i++) 1069 { 1070 x->block[i].coeff = x->coeff + i * 16; 1071 } 1072} 1073 1074void vp8_build_block_offsets(MACROBLOCK *x) 1075{ 1076 int block = 0; 1077 int br, bc; 1078 1079 vp8_build_block_doffsets(&x->e_mbd); 1080 1081 /* y blocks */ 1082 x->thismb_ptr = &x->thismb[0]; 1083 for (br = 0; br < 4; br++) 1084 { 1085 for (bc = 0; bc < 4; bc++) 1086 { 1087 BLOCK *this_block = &x->block[block]; 1088 this_block->base_src = &x->thismb_ptr; 1089 this_block->src_stride = 16; 1090 this_block->src = 4 * br * 16 + 4 * bc; 1091 ++block; 1092 } 1093 } 1094 1095 /* u 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.u_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 /* v blocks */ 1109 for (br = 0; br < 2; br++) 1110 { 1111 for (bc = 0; bc < 2; bc++) 1112 { 1113 BLOCK *this_block = &x->block[block]; 1114 this_block->base_src = &x->src.v_buffer; 1115 this_block->src_stride = x->src.uv_stride; 1116 this_block->src = 4 * br * this_block->src_stride + 4 * bc; 1117 ++block; 1118 } 1119 } 1120} 1121 1122static void sum_intra_stats(VP8_COMP *cpi, MACROBLOCK *x) 1123{ 1124 const MACROBLOCKD *xd = & x->e_mbd; 1125 const MB_PREDICTION_MODE m = xd->mode_info_context->mbmi.mode; 1126 const MB_PREDICTION_MODE uvm = xd->mode_info_context->mbmi.uv_mode; 1127 1128#ifdef MODE_STATS 1129 const int is_key = cpi->common.frame_type == KEY_FRAME; 1130 1131 ++ (is_key ? uv_modes : inter_uv_modes)[uvm]; 1132 1133 if (m == B_PRED) 1134 { 1135 unsigned int *const bct = is_key ? b_modes : inter_b_modes; 1136 1137 int b = 0; 1138 1139 do 1140 { 1141 ++ bct[xd->block[b].bmi.mode]; 1142 } 1143 while (++b < 16); 1144 } 1145 1146#endif 1147 1148 ++x->ymode_count[m]; 1149 ++x->uv_mode_count[uvm]; 1150 1151} 1152 1153/* Experimental stub function to create a per MB zbin adjustment based on 1154 * some previously calculated measure of MB activity. 1155 */ 1156static void adjust_act_zbin( VP8_COMP *cpi, MACROBLOCK *x ) 1157{ 1158#if USE_ACT_INDEX 1159 x->act_zbin_adj = *(x->mb_activity_ptr); 1160#else 1161 int64_t a; 1162 int64_t b; 1163 int64_t act = *(x->mb_activity_ptr); 1164 1165 /* Apply the masking to the RD multiplier. */ 1166 a = act + 4*cpi->activity_avg; 1167 b = 4*act + cpi->activity_avg; 1168 1169 if ( act > cpi->activity_avg ) 1170 x->act_zbin_adj = (int)(((int64_t)b + (a>>1))/a) - 1; 1171 else 1172 x->act_zbin_adj = 1 - (int)(((int64_t)a + (b>>1))/b); 1173#endif 1174} 1175 1176int vp8cx_encode_intra_macroblock(VP8_COMP *cpi, MACROBLOCK *x, 1177 TOKENEXTRA **t) 1178{ 1179 MACROBLOCKD *xd = &x->e_mbd; 1180 int rate; 1181 1182 if (cpi->sf.RD && cpi->compressor_speed != 2) 1183 vp8_rd_pick_intra_mode(x, &rate); 1184 else 1185 vp8_pick_intra_mode(x, &rate); 1186 1187 if(cpi->oxcf.tuning == VP8_TUNE_SSIM) 1188 { 1189 adjust_act_zbin( cpi, x ); 1190 vp8_update_zbin_extra(cpi, x); 1191 } 1192 1193 if (x->e_mbd.mode_info_context->mbmi.mode == B_PRED) 1194 vp8_encode_intra4x4mby(x); 1195 else 1196 vp8_encode_intra16x16mby(x); 1197 1198 vp8_encode_intra16x16mbuv(x); 1199 1200 sum_intra_stats(cpi, x); 1201 1202 vp8_tokenize_mb(cpi, x, t); 1203 1204 if (xd->mode_info_context->mbmi.mode != B_PRED) 1205 vp8_inverse_transform_mby(xd); 1206 1207 vp8_dequant_idct_add_uv_block 1208 (xd->qcoeff+16*16, xd->dequant_uv, 1209 xd->dst.u_buffer, xd->dst.v_buffer, 1210 xd->dst.uv_stride, xd->eobs+16); 1211 return rate; 1212} 1213#ifdef SPEEDSTATS 1214extern int cnt_pm; 1215#endif 1216 1217extern void vp8_fix_contexts(MACROBLOCKD *x); 1218 1219int vp8cx_encode_inter_macroblock 1220( 1221 VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t, 1222 int recon_yoffset, int recon_uvoffset, 1223 int mb_row, int mb_col 1224) 1225{ 1226 MACROBLOCKD *const xd = &x->e_mbd; 1227 int intra_error = 0; 1228 int rate; 1229 int distortion; 1230 1231 x->skip = 0; 1232 1233 if (xd->segmentation_enabled) 1234 x->encode_breakout = cpi->segment_encode_breakout[xd->mode_info_context->mbmi.segment_id]; 1235 else 1236 x->encode_breakout = cpi->oxcf.encode_breakout; 1237 1238#if CONFIG_TEMPORAL_DENOISING 1239 /* Reset the best sse mode/mv for each macroblock. */ 1240 x->best_reference_frame = INTRA_FRAME; 1241 x->best_zeromv_reference_frame = INTRA_FRAME; 1242 x->best_sse_inter_mode = 0; 1243 x->best_sse_mv.as_int = 0; 1244 x->need_to_clamp_best_mvs = 0; 1245#endif 1246 1247 if (cpi->sf.RD) 1248 { 1249 int zbin_mode_boost_enabled = x->zbin_mode_boost_enabled; 1250 1251 /* Are we using the fast quantizer for the mode selection? */ 1252 if(cpi->sf.use_fastquant_for_pick) 1253 { 1254 x->quantize_b = vp8_fast_quantize_b; 1255 x->quantize_b_pair = vp8_fast_quantize_b_pair; 1256 1257 /* the fast quantizer does not use zbin_extra, so 1258 * do not recalculate */ 1259 x->zbin_mode_boost_enabled = 0; 1260 } 1261 vp8_rd_pick_inter_mode(cpi, x, recon_yoffset, recon_uvoffset, &rate, 1262 &distortion, &intra_error, mb_row, mb_col); 1263 1264 /* switch back to the regular quantizer for the encode */ 1265 if (cpi->sf.improved_quant) 1266 { 1267 x->quantize_b = vp8_regular_quantize_b; 1268 x->quantize_b_pair = vp8_regular_quantize_b_pair; 1269 } 1270 1271 /* restore cpi->zbin_mode_boost_enabled */ 1272 x->zbin_mode_boost_enabled = zbin_mode_boost_enabled; 1273 1274 } 1275 else 1276 { 1277 vp8_pick_inter_mode(cpi, x, recon_yoffset, recon_uvoffset, &rate, 1278 &distortion, &intra_error, mb_row, mb_col); 1279 } 1280 1281 x->prediction_error += distortion; 1282 x->intra_error += intra_error; 1283 1284 if(cpi->oxcf.tuning == VP8_TUNE_SSIM) 1285 { 1286 /* Adjust the zbin based on this MB rate. */ 1287 adjust_act_zbin( cpi, x ); 1288 } 1289 1290#if 0 1291 /* Experimental RD code */ 1292 cpi->frame_distortion += distortion; 1293 cpi->last_mb_distortion = distortion; 1294#endif 1295 1296 /* MB level adjutment to quantizer setup */ 1297 if (xd->segmentation_enabled) 1298 { 1299 /* If cyclic update enabled */ 1300 if (cpi->current_layer == 0 && cpi->cyclic_refresh_mode_enabled) 1301 { 1302 /* Clear segment_id back to 0 if not coded (last frame 0,0) */ 1303 if ((xd->mode_info_context->mbmi.segment_id == 1) && 1304 ((xd->mode_info_context->mbmi.ref_frame != LAST_FRAME) || (xd->mode_info_context->mbmi.mode != ZEROMV))) 1305 { 1306 xd->mode_info_context->mbmi.segment_id = 0; 1307 1308 /* segment_id changed, so update */ 1309 vp8cx_mb_init_quantizer(cpi, x, 1); 1310 } 1311 } 1312 } 1313 1314 { 1315 /* Experimental code. 1316 * Special case for gf and arf zeromv modes, for 1 temporal layer. 1317 * Increase zbin size to supress noise. 1318 */ 1319 x->zbin_mode_boost = 0; 1320 if (x->zbin_mode_boost_enabled) 1321 { 1322 if ( xd->mode_info_context->mbmi.ref_frame != INTRA_FRAME ) 1323 { 1324 if (xd->mode_info_context->mbmi.mode == ZEROMV) 1325 { 1326 if (xd->mode_info_context->mbmi.ref_frame != LAST_FRAME && 1327 cpi->oxcf.number_of_layers == 1) 1328 x->zbin_mode_boost = GF_ZEROMV_ZBIN_BOOST; 1329 else 1330 x->zbin_mode_boost = LF_ZEROMV_ZBIN_BOOST; 1331 } 1332 else if (xd->mode_info_context->mbmi.mode == SPLITMV) 1333 x->zbin_mode_boost = 0; 1334 else 1335 x->zbin_mode_boost = MV_ZBIN_BOOST; 1336 } 1337 } 1338 1339 /* The fast quantizer doesn't use zbin_extra, only do so with 1340 * the regular quantizer. */ 1341 if (cpi->sf.improved_quant) 1342 vp8_update_zbin_extra(cpi, x); 1343 } 1344 1345 x->count_mb_ref_frame_usage[xd->mode_info_context->mbmi.ref_frame] ++; 1346 1347 if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME) 1348 { 1349 vp8_encode_intra16x16mbuv(x); 1350 1351 if (xd->mode_info_context->mbmi.mode == B_PRED) 1352 { 1353 vp8_encode_intra4x4mby(x); 1354 } 1355 else 1356 { 1357 vp8_encode_intra16x16mby(x); 1358 } 1359 1360 sum_intra_stats(cpi, x); 1361 } 1362 else 1363 { 1364 int ref_fb_idx; 1365 1366 if (xd->mode_info_context->mbmi.ref_frame == LAST_FRAME) 1367 ref_fb_idx = cpi->common.lst_fb_idx; 1368 else if (xd->mode_info_context->mbmi.ref_frame == GOLDEN_FRAME) 1369 ref_fb_idx = cpi->common.gld_fb_idx; 1370 else 1371 ref_fb_idx = cpi->common.alt_fb_idx; 1372 1373 xd->pre.y_buffer = cpi->common.yv12_fb[ref_fb_idx].y_buffer + recon_yoffset; 1374 xd->pre.u_buffer = cpi->common.yv12_fb[ref_fb_idx].u_buffer + recon_uvoffset; 1375 xd->pre.v_buffer = cpi->common.yv12_fb[ref_fb_idx].v_buffer + recon_uvoffset; 1376 1377 if (!x->skip) 1378 { 1379 vp8_encode_inter16x16(x); 1380 } 1381 else 1382 vp8_build_inter16x16_predictors_mb(xd, xd->dst.y_buffer, 1383 xd->dst.u_buffer, xd->dst.v_buffer, 1384 xd->dst.y_stride, xd->dst.uv_stride); 1385 1386 } 1387 1388 if (!x->skip) 1389 { 1390 vp8_tokenize_mb(cpi, x, t); 1391 1392 if (xd->mode_info_context->mbmi.mode != B_PRED) 1393 vp8_inverse_transform_mby(xd); 1394 1395 vp8_dequant_idct_add_uv_block 1396 (xd->qcoeff+16*16, xd->dequant_uv, 1397 xd->dst.u_buffer, xd->dst.v_buffer, 1398 xd->dst.uv_stride, xd->eobs+16); 1399 } 1400 else 1401 { 1402 /* always set mb_skip_coeff as it is needed by the loopfilter */ 1403 xd->mode_info_context->mbmi.mb_skip_coeff = 1; 1404 1405 if (cpi->common.mb_no_coeff_skip) 1406 { 1407 x->skip_true_count ++; 1408 vp8_fix_contexts(xd); 1409 } 1410 else 1411 { 1412 vp8_stuff_mb(cpi, x, t); 1413 } 1414 } 1415 1416 return rate; 1417} 1418