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. */
tt_activity_measure(VP8_COMP * cpi,MACROBLOCK * x)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. */
alt_activity_measure(VP8_COMP * cpi,MACROBLOCK * x,int use_dc_pred)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
mb_activity_measure(VP8_COMP * cpi,MACROBLOCK * x,int mb_row,int mb_col)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
calc_av_activity(VP8_COMP * cpi,int64_t activity_sum)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 */
calc_activity_index(VP8_COMP * cpi,MACROBLOCK * x)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 */
build_activity_map(VP8_COMP * cpi)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 */
vp8_activity_masking(VP8_COMP * cpi,MACROBLOCK * x)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
encode_mb_row(VP8_COMP * cpi,VP8_COMMON * cm,int mb_row,MACROBLOCK * x,MACROBLOCKD * xd,TOKENEXTRA ** tp,int * segment_counts,int * totalrate)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 // 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
init_encode_frame_mb_context(VP8_COMP * cpi)619 static 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
sum_coef_counts(MACROBLOCK * x,MACROBLOCK * x_thread)696 static 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
vp8_encode_frame(VP8_COMP * cpi)726 void 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 }
vp8_setup_block_ptrs(MACROBLOCK * x)1035 void 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
vp8_build_block_offsets(MACROBLOCK * x)1074 void 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
sum_intra_stats(VP8_COMP * cpi,MACROBLOCK * x)1122 static 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 */
adjust_act_zbin(VP8_COMP * cpi,MACROBLOCK * x)1156 static 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
vp8cx_encode_intra_macroblock(VP8_COMP * cpi,MACROBLOCK * x,TOKENEXTRA ** t)1176 int 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
1214 extern int cnt_pm;
1215 #endif
1216
1217 extern void vp8_fix_contexts(MACROBLOCKD *x);
1218
vp8cx_encode_inter_macroblock(VP8_COMP * cpi,MACROBLOCK * x,TOKENEXTRA ** t,int recon_yoffset,int recon_uvoffset,int mb_row,int mb_col)1219 int 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