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comparison: media/libvpx/vp8/encoder/encodeframe.c

media/libvpx/vp8/encoder/encodeframe.c

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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 }

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