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 #include "vpx_config.h"
12 #include "vp8_rtcd.h"
13 #include "./vpx_dsp_rtcd.h"
14 #include "bitstream.h"
15 #include "encodemb.h"
16 #include "encodemv.h"
17 #if CONFIG_MULTITHREAD
18 #include "ethreading.h"
19 #endif
20 #include "vp8/common/common.h"
21 #include "onyx_int.h"
22 #include "vp8/common/extend.h"
23 #include "vp8/common/entropymode.h"
24 #include "vp8/common/quant_common.h"
25 #include "segmentation.h"
26 #include "vp8/common/setupintrarecon.h"
27 #include "encodeintra.h"
28 #include "vp8/common/reconinter.h"
29 #include "rdopt.h"
30 #include "pickinter.h"
31 #include "vp8/common/findnearmv.h"
32 #include <stdio.h>
33 #include <limits.h>
34 #include "vp8/common/invtrans.h"
35 #include "vpx_ports/vpx_timer.h"
36 #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
37 #include "bitstream.h"
38 #endif
39 #include "encodeframe.h"
40
41 extern void vp8_stuff_mb(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t);
42 static void adjust_act_zbin(VP8_COMP *cpi, MACROBLOCK *x);
43
44 #ifdef MODE_STATS
45 unsigned int inter_y_modes[10] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
46 unsigned int inter_uv_modes[4] = { 0, 0, 0, 0 };
47 unsigned int inter_b_modes[15] = {
48 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
49 };
50 unsigned int y_modes[5] = { 0, 0, 0, 0, 0 };
51 unsigned int uv_modes[4] = { 0, 0, 0, 0 };
52 unsigned int b_modes[14] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
53 #endif
54
55 /* activity_avg must be positive, or flat regions could get a zero weight
56 * (infinite lambda), which confounds analysis.
57 * This also avoids the need for divide by zero checks in
58 * vp8_activity_masking().
59 */
60 #define VP8_ACTIVITY_AVG_MIN (64)
61
62 /* This is used as a reference when computing the source variance for the
63 * purposes of activity masking.
64 * Eventually this should be replaced by custom no-reference routines,
65 * which will be faster.
66 */
67 static const unsigned char VP8_VAR_OFFS[16] = {
68 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128
69 };
70
71 /* Original activity measure from Tim T's code. */
tt_activity_measure(VP8_COMP * cpi,MACROBLOCK * x)72 static unsigned int tt_activity_measure(VP8_COMP *cpi, MACROBLOCK *x) {
73 unsigned int act;
74 unsigned int sse;
75 (void)cpi;
76 /* TODO: This could also be done over smaller areas (8x8), but that would
77 * require extensive changes elsewhere, as lambda is assumed to be fixed
78 * over an entire MB in most of the code.
79 * Another option is to compute four 8x8 variances, and pick a single
80 * lambda using a non-linear combination (e.g., the smallest, or second
81 * smallest, etc.).
82 */
83 act = vpx_variance16x16(x->src.y_buffer, x->src.y_stride, VP8_VAR_OFFS, 0,
84 &sse);
85 act = act << 4;
86
87 /* If the region is flat, lower the activity some more. */
88 if (act < 8 << 12) act = act < 5 << 12 ? act : 5 << 12;
89
90 return act;
91 }
92
93 /* Stub for alternative experimental activity measures. */
alt_activity_measure(VP8_COMP * cpi,MACROBLOCK * x,int use_dc_pred)94 static unsigned int alt_activity_measure(VP8_COMP *cpi, MACROBLOCK *x,
95 int use_dc_pred) {
96 return vp8_encode_intra(cpi, x, use_dc_pred);
97 }
98
99 /* Measure the activity of the current macroblock
100 * What we measure here is TBD so abstracted to this function
101 */
102 #define ALT_ACT_MEASURE 1
mb_activity_measure(VP8_COMP * cpi,MACROBLOCK * x,int mb_row,int mb_col)103 static unsigned int mb_activity_measure(VP8_COMP *cpi, MACROBLOCK *x,
104 int mb_row, int mb_col) {
105 unsigned int mb_activity;
106
107 if (ALT_ACT_MEASURE) {
108 int use_dc_pred = (mb_col || mb_row) && (!mb_col || !mb_row);
109
110 /* Or use and alternative. */
111 mb_activity = alt_activity_measure(cpi, x, use_dc_pred);
112 } else {
113 /* Original activity measure from Tim T's code. */
114 mb_activity = tt_activity_measure(cpi, x);
115 }
116
117 if (mb_activity < VP8_ACTIVITY_AVG_MIN) mb_activity = VP8_ACTIVITY_AVG_MIN;
118
119 return mb_activity;
120 }
121
122 /* Calculate an "average" mb activity value for the frame */
123 #define ACT_MEDIAN 0
calc_av_activity(VP8_COMP * cpi,int64_t activity_sum)124 static void calc_av_activity(VP8_COMP *cpi, int64_t activity_sum) {
125 #if ACT_MEDIAN
126 /* Find median: Simple n^2 algorithm for experimentation */
127 {
128 unsigned int median;
129 unsigned int i, j;
130 unsigned int *sortlist;
131 unsigned int tmp;
132
133 /* Create a list to sort to */
134 CHECK_MEM_ERROR(sortlist,
135 vpx_calloc(sizeof(unsigned int), cpi->common.MBs));
136
137 /* Copy map to sort list */
138 memcpy(sortlist, cpi->mb_activity_map,
139 sizeof(unsigned int) * cpi->common.MBs);
140
141 /* Ripple each value down to its correct position */
142 for (i = 1; i < cpi->common.MBs; ++i) {
143 for (j = i; j > 0; j--) {
144 if (sortlist[j] < sortlist[j - 1]) {
145 /* Swap values */
146 tmp = sortlist[j - 1];
147 sortlist[j - 1] = sortlist[j];
148 sortlist[j] = tmp;
149 } else
150 break;
151 }
152 }
153
154 /* Even number MBs so estimate median as mean of two either side. */
155 median = (1 + sortlist[cpi->common.MBs >> 1] +
156 sortlist[(cpi->common.MBs >> 1) + 1]) >>
157 1;
158
159 cpi->activity_avg = median;
160
161 vpx_free(sortlist);
162 }
163 #else
164 /* Simple mean for now */
165 cpi->activity_avg = (unsigned int)(activity_sum / cpi->common.MBs);
166 #endif
167
168 if (cpi->activity_avg < VP8_ACTIVITY_AVG_MIN) {
169 cpi->activity_avg = VP8_ACTIVITY_AVG_MIN;
170 }
171
172 /* Experimental code: return fixed value normalized for several clips */
173 if (ALT_ACT_MEASURE) cpi->activity_avg = 100000;
174 }
175
176 #define USE_ACT_INDEX 0
177 #define OUTPUT_NORM_ACT_STATS 0
178
179 #if USE_ACT_INDEX
180 /* Calculate and activity index for each mb */
calc_activity_index(VP8_COMP * cpi,MACROBLOCK * x)181 static void calc_activity_index(VP8_COMP *cpi, MACROBLOCK *x) {
182 VP8_COMMON *const cm = &cpi->common;
183 int mb_row, mb_col;
184
185 int64_t act;
186 int64_t a;
187 int64_t b;
188
189 #if OUTPUT_NORM_ACT_STATS
190 FILE *f = fopen("norm_act.stt", "a");
191 fprintf(f, "\n%12d\n", cpi->activity_avg);
192 #endif
193
194 /* Reset pointers to start of activity map */
195 x->mb_activity_ptr = cpi->mb_activity_map;
196
197 /* Calculate normalized mb activity number. */
198 for (mb_row = 0; mb_row < cm->mb_rows; ++mb_row) {
199 /* for each macroblock col in image */
200 for (mb_col = 0; mb_col < cm->mb_cols; ++mb_col) {
201 /* Read activity from the map */
202 act = *(x->mb_activity_ptr);
203
204 /* Calculate a normalized activity number */
205 a = act + 4 * cpi->activity_avg;
206 b = 4 * act + cpi->activity_avg;
207
208 if (b >= a)
209 *(x->activity_ptr) = (int)((b + (a >> 1)) / a) - 1;
210 else
211 *(x->activity_ptr) = 1 - (int)((a + (b >> 1)) / b);
212
213 #if OUTPUT_NORM_ACT_STATS
214 fprintf(f, " %6d", *(x->mb_activity_ptr));
215 #endif
216 /* Increment activity map pointers */
217 x->mb_activity_ptr++;
218 }
219
220 #if OUTPUT_NORM_ACT_STATS
221 fprintf(f, "\n");
222 #endif
223 }
224
225 #if OUTPUT_NORM_ACT_STATS
226 fclose(f);
227 #endif
228 }
229 #endif
230
231 /* Loop through all MBs. Note activity of each, average activity and
232 * calculate a normalized activity for each
233 */
build_activity_map(VP8_COMP * cpi)234 static void build_activity_map(VP8_COMP *cpi) {
235 MACROBLOCK *const x = &cpi->mb;
236 MACROBLOCKD *xd = &x->e_mbd;
237 VP8_COMMON *const cm = &cpi->common;
238
239 #if ALT_ACT_MEASURE
240 YV12_BUFFER_CONFIG *new_yv12 = &cm->yv12_fb[cm->new_fb_idx];
241 int recon_yoffset;
242 int recon_y_stride = new_yv12->y_stride;
243 #endif
244
245 int mb_row, mb_col;
246 unsigned int mb_activity;
247 int64_t activity_sum = 0;
248
249 /* for each macroblock row in image */
250 for (mb_row = 0; mb_row < cm->mb_rows; ++mb_row) {
251 #if ALT_ACT_MEASURE
252 /* reset above block coeffs */
253 xd->up_available = (mb_row != 0);
254 recon_yoffset = (mb_row * recon_y_stride * 16);
255 #endif
256 /* for each macroblock col in image */
257 for (mb_col = 0; mb_col < cm->mb_cols; ++mb_col) {
258 #if ALT_ACT_MEASURE
259 xd->dst.y_buffer = new_yv12->y_buffer + recon_yoffset;
260 xd->left_available = (mb_col != 0);
261 recon_yoffset += 16;
262 #endif
263 /* Copy current mb to a buffer */
264 vp8_copy_mem16x16(x->src.y_buffer, x->src.y_stride, x->thismb, 16);
265
266 /* measure activity */
267 mb_activity = mb_activity_measure(cpi, x, mb_row, mb_col);
268
269 /* Keep frame sum */
270 activity_sum += mb_activity;
271
272 /* Store MB level activity details. */
273 *x->mb_activity_ptr = mb_activity;
274
275 /* Increment activity map pointer */
276 x->mb_activity_ptr++;
277
278 /* adjust to the next column of source macroblocks */
279 x->src.y_buffer += 16;
280 }
281
282 /* adjust to the next row of mbs */
283 x->src.y_buffer += 16 * x->src.y_stride - 16 * cm->mb_cols;
284
285 #if ALT_ACT_MEASURE
286 /* extend the recon for intra prediction */
287 vp8_extend_mb_row(new_yv12, xd->dst.y_buffer + 16, xd->dst.u_buffer + 8,
288 xd->dst.v_buffer + 8);
289 #endif
290 }
291
292 /* Calculate an "average" MB activity */
293 calc_av_activity(cpi, activity_sum);
294
295 #if USE_ACT_INDEX
296 /* Calculate an activity index number of each mb */
297 calc_activity_index(cpi, x);
298 #endif
299 }
300
301 /* Macroblock activity masking */
vp8_activity_masking(VP8_COMP * cpi,MACROBLOCK * x)302 void vp8_activity_masking(VP8_COMP *cpi, MACROBLOCK *x) {
303 #if USE_ACT_INDEX
304 x->rdmult += *(x->mb_activity_ptr) * (x->rdmult >> 2);
305 x->errorperbit = x->rdmult * 100 / (110 * x->rddiv);
306 x->errorperbit += (x->errorperbit == 0);
307 #else
308 int64_t a;
309 int64_t b;
310 int64_t act = *(x->mb_activity_ptr);
311
312 /* Apply the masking to the RD multiplier. */
313 a = act + (2 * cpi->activity_avg);
314 b = (2 * act) + cpi->activity_avg;
315
316 x->rdmult = (unsigned int)(((int64_t)x->rdmult * b + (a >> 1)) / a);
317 x->errorperbit = x->rdmult * 100 / (110 * x->rddiv);
318 x->errorperbit += (x->errorperbit == 0);
319 #endif
320
321 /* Activity based Zbin adjustment */
322 adjust_act_zbin(cpi, x);
323 }
324
encode_mb_row(VP8_COMP * cpi,VP8_COMMON * cm,int mb_row,MACROBLOCK * x,MACROBLOCKD * xd,TOKENEXTRA ** tp,int * segment_counts,int * totalrate)325 static void encode_mb_row(VP8_COMP *cpi, VP8_COMMON *cm, int mb_row,
326 MACROBLOCK *x, MACROBLOCKD *xd, TOKENEXTRA **tp,
327 int *segment_counts, int *totalrate) {
328 int recon_yoffset, recon_uvoffset;
329 int mb_col;
330 int ref_fb_idx = cm->lst_fb_idx;
331 int dst_fb_idx = cm->new_fb_idx;
332 int recon_y_stride = cm->yv12_fb[ref_fb_idx].y_stride;
333 int recon_uv_stride = cm->yv12_fb[ref_fb_idx].uv_stride;
334 int map_index = (mb_row * cpi->common.mb_cols);
335
336 #if (CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING)
337 const int num_part = (1 << cm->multi_token_partition);
338 TOKENEXTRA *tp_start = cpi->tok;
339 vp8_writer *w;
340 #endif
341
342 #if CONFIG_MULTITHREAD
343 const int nsync = cpi->mt_sync_range;
344 vpx_atomic_int rightmost_col = VPX_ATOMIC_INIT(cm->mb_cols + nsync);
345 const vpx_atomic_int *last_row_current_mb_col;
346 vpx_atomic_int *current_mb_col = &cpi->mt_current_mb_col[mb_row];
347
348 if (vpx_atomic_load_acquire(&cpi->b_multi_threaded) != 0 && mb_row != 0) {
349 last_row_current_mb_col = &cpi->mt_current_mb_col[mb_row - 1];
350 } else {
351 last_row_current_mb_col = &rightmost_col;
352 }
353 #endif
354
355 #if (CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING)
356 if (num_part > 1)
357 w = &cpi->bc[1 + (mb_row % num_part)];
358 else
359 w = &cpi->bc[1];
360 #endif
361
362 /* reset above block coeffs */
363 xd->above_context = cm->above_context;
364
365 xd->up_available = (mb_row != 0);
366 recon_yoffset = (mb_row * recon_y_stride * 16);
367 recon_uvoffset = (mb_row * recon_uv_stride * 8);
368
369 cpi->tplist[mb_row].start = *tp;
370 /* printf("Main mb_row = %d\n", mb_row); */
371
372 /* Distance of Mb to the top & bottom edges, specified in 1/8th pel
373 * units as they are always compared to values that are in 1/8th pel
374 */
375 xd->mb_to_top_edge = -((mb_row * 16) << 3);
376 xd->mb_to_bottom_edge = ((cm->mb_rows - 1 - mb_row) * 16) << 3;
377
378 /* Set up limit values for vertical motion vector components
379 * to prevent them extending beyond the UMV borders
380 */
381 x->mv_row_min = -((mb_row * 16) + (VP8BORDERINPIXELS - 16));
382 x->mv_row_max = ((cm->mb_rows - 1 - mb_row) * 16) + (VP8BORDERINPIXELS - 16);
383
384 /* Set the mb activity pointer to the start of the row. */
385 x->mb_activity_ptr = &cpi->mb_activity_map[map_index];
386
387 /* for each macroblock col in image */
388 for (mb_col = 0; mb_col < cm->mb_cols; ++mb_col) {
389 #if (CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING)
390 *tp = cpi->tok;
391 #endif
392 /* Distance of Mb to the left & right edges, specified in
393 * 1/8th pel units as they are always compared to values
394 * that are in 1/8th pel units
395 */
396 xd->mb_to_left_edge = -((mb_col * 16) << 3);
397 xd->mb_to_right_edge = ((cm->mb_cols - 1 - mb_col) * 16) << 3;
398
399 /* Set up limit values for horizontal motion vector components
400 * to prevent them extending beyond the UMV borders
401 */
402 x->mv_col_min = -((mb_col * 16) + (VP8BORDERINPIXELS - 16));
403 x->mv_col_max =
404 ((cm->mb_cols - 1 - mb_col) * 16) + (VP8BORDERINPIXELS - 16);
405
406 xd->dst.y_buffer = cm->yv12_fb[dst_fb_idx].y_buffer + recon_yoffset;
407 xd->dst.u_buffer = cm->yv12_fb[dst_fb_idx].u_buffer + recon_uvoffset;
408 xd->dst.v_buffer = cm->yv12_fb[dst_fb_idx].v_buffer + recon_uvoffset;
409 xd->left_available = (mb_col != 0);
410
411 x->rddiv = cpi->RDDIV;
412 x->rdmult = cpi->RDMULT;
413
414 /* Copy current mb to a buffer */
415 vp8_copy_mem16x16(x->src.y_buffer, x->src.y_stride, x->thismb, 16);
416
417 #if CONFIG_MULTITHREAD
418 if (vpx_atomic_load_acquire(&cpi->b_multi_threaded) != 0) {
419 if (((mb_col - 1) % nsync) == 0) {
420 vpx_atomic_store_release(current_mb_col, mb_col - 1);
421 }
422
423 if (mb_row && !(mb_col & (nsync - 1))) {
424 vp8_atomic_spin_wait(mb_col, last_row_current_mb_col, nsync);
425 }
426 }
427 #endif
428
429 if (cpi->oxcf.tuning == VP8_TUNE_SSIM) vp8_activity_masking(cpi, x);
430
431 /* Is segmentation enabled */
432 /* MB level adjustment to quantizer */
433 if (xd->segmentation_enabled) {
434 /* Code to set segment id in xd->mbmi.segment_id for current MB
435 * (with range checking)
436 */
437 if (cpi->segmentation_map[map_index + mb_col] <= 3) {
438 xd->mode_info_context->mbmi.segment_id =
439 cpi->segmentation_map[map_index + mb_col];
440 } else {
441 xd->mode_info_context->mbmi.segment_id = 0;
442 }
443
444 vp8cx_mb_init_quantizer(cpi, x, 1);
445 } else {
446 /* Set to Segment 0 by default */
447 xd->mode_info_context->mbmi.segment_id = 0;
448 }
449
450 x->active_ptr = cpi->active_map + map_index + mb_col;
451
452 if (cm->frame_type == KEY_FRAME) {
453 *totalrate += vp8cx_encode_intra_macroblock(cpi, x, tp);
454 #ifdef MODE_STATS
455 y_modes[xd->mbmi.mode]++;
456 #endif
457 } else {
458 *totalrate += vp8cx_encode_inter_macroblock(
459 cpi, x, tp, recon_yoffset, recon_uvoffset, mb_row, mb_col);
460
461 #ifdef MODE_STATS
462 inter_y_modes[xd->mbmi.mode]++;
463
464 if (xd->mbmi.mode == SPLITMV) {
465 int b;
466
467 for (b = 0; b < xd->mbmi.partition_count; ++b) {
468 inter_b_modes[x->partition->bmi[b].mode]++;
469 }
470 }
471
472 #endif
473
474 // Keep track of how many (consecutive) times a block is coded
475 // as ZEROMV_LASTREF, for base layer frames.
476 // Reset to 0 if its coded as anything else.
477 if (cpi->current_layer == 0) {
478 if (xd->mode_info_context->mbmi.mode == ZEROMV &&
479 xd->mode_info_context->mbmi.ref_frame == LAST_FRAME) {
480 // Increment, check for wrap-around.
481 if (cpi->consec_zero_last[map_index + mb_col] < 255) {
482 cpi->consec_zero_last[map_index + mb_col] += 1;
483 }
484 if (cpi->consec_zero_last_mvbias[map_index + mb_col] < 255) {
485 cpi->consec_zero_last_mvbias[map_index + mb_col] += 1;
486 }
487 } else {
488 cpi->consec_zero_last[map_index + mb_col] = 0;
489 cpi->consec_zero_last_mvbias[map_index + mb_col] = 0;
490 }
491 if (x->zero_last_dot_suppress) {
492 cpi->consec_zero_last_mvbias[map_index + mb_col] = 0;
493 }
494 }
495
496 /* Special case code for cyclic refresh
497 * If cyclic update enabled then copy xd->mbmi.segment_id; (which
498 * may have been updated based on mode during
499 * vp8cx_encode_inter_macroblock()) back into the global
500 * segmentation map
501 */
502 if ((cpi->current_layer == 0) &&
503 (cpi->cyclic_refresh_mode_enabled && xd->segmentation_enabled)) {
504 cpi->segmentation_map[map_index + mb_col] =
505 xd->mode_info_context->mbmi.segment_id;
506
507 /* If the block has been refreshed mark it as clean (the
508 * magnitude of the -ve influences how long it will be before
509 * we consider another refresh):
510 * Else if it was coded (last frame 0,0) and has not already
511 * been refreshed then mark it as a candidate for cleanup
512 * next time (marked 0) else mark it as dirty (1).
513 */
514 if (xd->mode_info_context->mbmi.segment_id) {
515 cpi->cyclic_refresh_map[map_index + mb_col] = -1;
516 } else if ((xd->mode_info_context->mbmi.mode == ZEROMV) &&
517 (xd->mode_info_context->mbmi.ref_frame == LAST_FRAME)) {
518 if (cpi->cyclic_refresh_map[map_index + mb_col] == 1) {
519 cpi->cyclic_refresh_map[map_index + mb_col] = 0;
520 }
521 } else {
522 cpi->cyclic_refresh_map[map_index + mb_col] = 1;
523 }
524 }
525 }
526
527 cpi->tplist[mb_row].stop = *tp;
528
529 #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
530 /* pack tokens for this MB */
531 {
532 int tok_count = *tp - tp_start;
533 vp8_pack_tokens(w, tp_start, tok_count);
534 }
535 #endif
536 /* Increment pointer into gf usage flags structure. */
537 x->gf_active_ptr++;
538
539 /* Increment the activity mask pointers. */
540 x->mb_activity_ptr++;
541
542 /* adjust to the next column of macroblocks */
543 x->src.y_buffer += 16;
544 x->src.u_buffer += 8;
545 x->src.v_buffer += 8;
546
547 recon_yoffset += 16;
548 recon_uvoffset += 8;
549
550 /* Keep track of segment usage */
551 segment_counts[xd->mode_info_context->mbmi.segment_id]++;
552
553 /* skip to next mb */
554 xd->mode_info_context++;
555 x->partition_info++;
556 xd->above_context++;
557 }
558
559 /* extend the recon for intra prediction */
560 vp8_extend_mb_row(&cm->yv12_fb[dst_fb_idx], xd->dst.y_buffer + 16,
561 xd->dst.u_buffer + 8, xd->dst.v_buffer + 8);
562
563 #if CONFIG_MULTITHREAD
564 if (vpx_atomic_load_acquire(&cpi->b_multi_threaded) != 0) {
565 vpx_atomic_store_release(current_mb_col,
566 vpx_atomic_load_acquire(&rightmost_col));
567 }
568 #endif
569
570 /* this is to account for the border */
571 xd->mode_info_context++;
572 x->partition_info++;
573 }
574
init_encode_frame_mb_context(VP8_COMP * cpi)575 static void init_encode_frame_mb_context(VP8_COMP *cpi) {
576 MACROBLOCK *const x = &cpi->mb;
577 VP8_COMMON *const cm = &cpi->common;
578 MACROBLOCKD *const xd = &x->e_mbd;
579
580 /* GF active flags data structure */
581 x->gf_active_ptr = (signed char *)cpi->gf_active_flags;
582
583 /* Activity map pointer */
584 x->mb_activity_ptr = cpi->mb_activity_map;
585
586 x->act_zbin_adj = 0;
587
588 x->partition_info = x->pi;
589
590 xd->mode_info_context = cm->mi;
591 xd->mode_info_stride = cm->mode_info_stride;
592
593 xd->frame_type = cm->frame_type;
594
595 /* reset intra mode contexts */
596 if (cm->frame_type == KEY_FRAME) vp8_init_mbmode_probs(cm);
597
598 /* Copy data over into macro block data structures. */
599 x->src = *cpi->Source;
600 xd->pre = cm->yv12_fb[cm->lst_fb_idx];
601 xd->dst = cm->yv12_fb[cm->new_fb_idx];
602
603 /* set up frame for intra coded blocks */
604 vp8_setup_intra_recon(&cm->yv12_fb[cm->new_fb_idx]);
605
606 vp8_build_block_offsets(x);
607
608 xd->mode_info_context->mbmi.mode = DC_PRED;
609 xd->mode_info_context->mbmi.uv_mode = DC_PRED;
610
611 xd->left_context = &cm->left_context;
612
613 x->mvc = cm->fc.mvc;
614
615 memset(cm->above_context, 0, sizeof(ENTROPY_CONTEXT_PLANES) * cm->mb_cols);
616
617 /* Special case treatment when GF and ARF are not sensible options
618 * for reference
619 */
620 if (cpi->ref_frame_flags == VP8_LAST_FRAME) {
621 vp8_calc_ref_frame_costs(x->ref_frame_cost, cpi->prob_intra_coded, 255,
622 128);
623 } else if ((cpi->oxcf.number_of_layers > 1) &&
624 (cpi->ref_frame_flags == VP8_GOLD_FRAME)) {
625 vp8_calc_ref_frame_costs(x->ref_frame_cost, cpi->prob_intra_coded, 1, 255);
626 } else if ((cpi->oxcf.number_of_layers > 1) &&
627 (cpi->ref_frame_flags == VP8_ALTR_FRAME)) {
628 vp8_calc_ref_frame_costs(x->ref_frame_cost, cpi->prob_intra_coded, 1, 1);
629 } else {
630 vp8_calc_ref_frame_costs(x->ref_frame_cost, cpi->prob_intra_coded,
631 cpi->prob_last_coded, cpi->prob_gf_coded);
632 }
633
634 xd->fullpixel_mask = 0xffffffff;
635 if (cm->full_pixel) xd->fullpixel_mask = 0xfffffff8;
636
637 vp8_zero(x->coef_counts);
638 vp8_zero(x->ymode_count);
639 vp8_zero(x->uv_mode_count) x->prediction_error = 0;
640 x->intra_error = 0;
641 vp8_zero(x->count_mb_ref_frame_usage);
642 }
643
644 #if CONFIG_MULTITHREAD
sum_coef_counts(MACROBLOCK * x,MACROBLOCK * x_thread)645 static void sum_coef_counts(MACROBLOCK *x, MACROBLOCK *x_thread) {
646 int i = 0;
647 do {
648 int j = 0;
649 do {
650 int k = 0;
651 do {
652 /* at every context */
653
654 /* calc probs and branch cts for this frame only */
655 int t = 0; /* token/prob index */
656
657 do {
658 x->coef_counts[i][j][k][t] += x_thread->coef_counts[i][j][k][t];
659 } while (++t < ENTROPY_NODES);
660 } while (++k < PREV_COEF_CONTEXTS);
661 } while (++j < COEF_BANDS);
662 } while (++i < BLOCK_TYPES);
663 }
664 #endif // CONFIG_MULTITHREAD
665
vp8_encode_frame(VP8_COMP * cpi)666 void vp8_encode_frame(VP8_COMP *cpi) {
667 int mb_row;
668 MACROBLOCK *const x = &cpi->mb;
669 VP8_COMMON *const cm = &cpi->common;
670 MACROBLOCKD *const xd = &x->e_mbd;
671 TOKENEXTRA *tp = cpi->tok;
672 int segment_counts[MAX_MB_SEGMENTS];
673 int totalrate;
674 #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
675 BOOL_CODER *bc = &cpi->bc[1]; /* bc[0] is for control partition */
676 const int num_part = (1 << cm->multi_token_partition);
677 #endif
678
679 memset(segment_counts, 0, sizeof(segment_counts));
680 totalrate = 0;
681
682 if (cpi->compressor_speed == 2) {
683 if (cpi->oxcf.cpu_used < 0) {
684 cpi->Speed = -(cpi->oxcf.cpu_used);
685 } else {
686 vp8_auto_select_speed(cpi);
687 }
688 }
689
690 /* Functions setup for all frame types so we can use MC in AltRef */
691 if (!cm->use_bilinear_mc_filter) {
692 xd->subpixel_predict = vp8_sixtap_predict4x4;
693 xd->subpixel_predict8x4 = vp8_sixtap_predict8x4;
694 xd->subpixel_predict8x8 = vp8_sixtap_predict8x8;
695 xd->subpixel_predict16x16 = vp8_sixtap_predict16x16;
696 } else {
697 xd->subpixel_predict = vp8_bilinear_predict4x4;
698 xd->subpixel_predict8x4 = vp8_bilinear_predict8x4;
699 xd->subpixel_predict8x8 = vp8_bilinear_predict8x8;
700 xd->subpixel_predict16x16 = vp8_bilinear_predict16x16;
701 }
702
703 cpi->mb.skip_true_count = 0;
704 cpi->tok_count = 0;
705
706 #if 0
707 /* Experimental code */
708 cpi->frame_distortion = 0;
709 cpi->last_mb_distortion = 0;
710 #endif
711
712 xd->mode_info_context = cm->mi;
713
714 vp8_zero(cpi->mb.MVcount);
715
716 vp8cx_frame_init_quantizer(cpi);
717
718 vp8_initialize_rd_consts(cpi, x,
719 vp8_dc_quant(cm->base_qindex, cm->y1dc_delta_q));
720
721 vp8cx_initialize_me_consts(cpi, cm->base_qindex);
722
723 if (cpi->oxcf.tuning == VP8_TUNE_SSIM) {
724 /* Initialize encode frame context. */
725 init_encode_frame_mb_context(cpi);
726
727 /* Build a frame level activity map */
728 build_activity_map(cpi);
729 }
730
731 /* re-init encode frame context. */
732 init_encode_frame_mb_context(cpi);
733
734 #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
735 {
736 int i;
737 for (i = 0; i < num_part; ++i) {
738 vp8_start_encode(&bc[i], cpi->partition_d[i + 1],
739 cpi->partition_d_end[i + 1]);
740 bc[i].error = &cm->error;
741 }
742 }
743
744 #endif
745
746 {
747 struct vpx_usec_timer emr_timer;
748 vpx_usec_timer_start(&emr_timer);
749
750 #if CONFIG_MULTITHREAD
751 if (vpx_atomic_load_acquire(&cpi->b_multi_threaded)) {
752 int i;
753
754 vp8cx_init_mbrthread_data(cpi, x, cpi->mb_row_ei,
755 cpi->encoding_thread_count);
756
757 for (i = 0; i < cm->mb_rows; ++i)
758 vpx_atomic_store_release(&cpi->mt_current_mb_col[i], -1);
759
760 for (i = 0; i < cpi->encoding_thread_count; ++i) {
761 sem_post(&cpi->h_event_start_encoding[i]);
762 }
763
764 for (mb_row = 0; mb_row < cm->mb_rows;
765 mb_row += (cpi->encoding_thread_count + 1)) {
766 vp8_zero(cm->left_context)
767
768 #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
769 tp = cpi->tok;
770 #else
771 tp = cpi->tok + mb_row * (cm->mb_cols * 16 * 24);
772 #endif
773
774 encode_mb_row(cpi, cm, mb_row, x, xd, &tp, segment_counts, &totalrate);
775
776 /* adjust to the next row of mbs */
777 x->src.y_buffer +=
778 16 * x->src.y_stride * (cpi->encoding_thread_count + 1) -
779 16 * cm->mb_cols;
780 x->src.u_buffer +=
781 8 * x->src.uv_stride * (cpi->encoding_thread_count + 1) -
782 8 * cm->mb_cols;
783 x->src.v_buffer +=
784 8 * x->src.uv_stride * (cpi->encoding_thread_count + 1) -
785 8 * cm->mb_cols;
786
787 xd->mode_info_context +=
788 xd->mode_info_stride * cpi->encoding_thread_count;
789 x->partition_info += xd->mode_info_stride * cpi->encoding_thread_count;
790 x->gf_active_ptr += cm->mb_cols * cpi->encoding_thread_count;
791 }
792 /* Wait for all the threads to finish. */
793 for (i = 0; i < cpi->encoding_thread_count; ++i) {
794 sem_wait(&cpi->h_event_end_encoding[i]);
795 }
796
797 for (mb_row = 0; mb_row < cm->mb_rows; ++mb_row) {
798 cpi->tok_count += (unsigned int)(cpi->tplist[mb_row].stop -
799 cpi->tplist[mb_row].start);
800 }
801
802 if (xd->segmentation_enabled) {
803 int j;
804
805 if (xd->segmentation_enabled) {
806 for (i = 0; i < cpi->encoding_thread_count; ++i) {
807 for (j = 0; j < 4; ++j) {
808 segment_counts[j] += cpi->mb_row_ei[i].segment_counts[j];
809 }
810 }
811 }
812 }
813
814 for (i = 0; i < cpi->encoding_thread_count; ++i) {
815 int mode_count;
816 int c_idx;
817 totalrate += cpi->mb_row_ei[i].totalrate;
818
819 cpi->mb.skip_true_count += cpi->mb_row_ei[i].mb.skip_true_count;
820
821 for (mode_count = 0; mode_count < VP8_YMODES; ++mode_count) {
822 cpi->mb.ymode_count[mode_count] +=
823 cpi->mb_row_ei[i].mb.ymode_count[mode_count];
824 }
825
826 for (mode_count = 0; mode_count < VP8_UV_MODES; ++mode_count) {
827 cpi->mb.uv_mode_count[mode_count] +=
828 cpi->mb_row_ei[i].mb.uv_mode_count[mode_count];
829 }
830
831 for (c_idx = 0; c_idx < MVvals; ++c_idx) {
832 cpi->mb.MVcount[0][c_idx] += cpi->mb_row_ei[i].mb.MVcount[0][c_idx];
833 cpi->mb.MVcount[1][c_idx] += cpi->mb_row_ei[i].mb.MVcount[1][c_idx];
834 }
835
836 cpi->mb.prediction_error += cpi->mb_row_ei[i].mb.prediction_error;
837 cpi->mb.intra_error += cpi->mb_row_ei[i].mb.intra_error;
838
839 for (c_idx = 0; c_idx < MAX_REF_FRAMES; ++c_idx) {
840 cpi->mb.count_mb_ref_frame_usage[c_idx] +=
841 cpi->mb_row_ei[i].mb.count_mb_ref_frame_usage[c_idx];
842 }
843
844 for (c_idx = 0; c_idx < MAX_ERROR_BINS; ++c_idx) {
845 cpi->mb.error_bins[c_idx] += cpi->mb_row_ei[i].mb.error_bins[c_idx];
846 }
847
848 /* add up counts for each thread */
849 sum_coef_counts(x, &cpi->mb_row_ei[i].mb);
850 }
851
852 } else
853 #endif // CONFIG_MULTITHREAD
854 {
855
856 /* for each macroblock row in image */
857 for (mb_row = 0; mb_row < cm->mb_rows; ++mb_row) {
858 vp8_zero(cm->left_context)
859
860 #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
861 tp = cpi->tok;
862 #endif
863
864 encode_mb_row(cpi, cm, mb_row, x, xd, &tp, segment_counts, &totalrate);
865
866 /* adjust to the next row of mbs */
867 x->src.y_buffer += 16 * x->src.y_stride - 16 * cm->mb_cols;
868 x->src.u_buffer += 8 * x->src.uv_stride - 8 * cm->mb_cols;
869 x->src.v_buffer += 8 * x->src.uv_stride - 8 * cm->mb_cols;
870 }
871
872 cpi->tok_count = (unsigned int)(tp - cpi->tok);
873 }
874
875 #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
876 {
877 int i;
878 for (i = 0; i < num_part; ++i) {
879 vp8_stop_encode(&bc[i]);
880 cpi->partition_sz[i + 1] = bc[i].pos;
881 }
882 }
883 #endif
884
885 vpx_usec_timer_mark(&emr_timer);
886 cpi->time_encode_mb_row += vpx_usec_timer_elapsed(&emr_timer);
887 }
888
889 // Work out the segment probabilities if segmentation is enabled
890 // and needs to be updated
891 if (xd->segmentation_enabled && xd->update_mb_segmentation_map) {
892 int tot_count;
893 int i;
894
895 /* Set to defaults */
896 memset(xd->mb_segment_tree_probs, 255, sizeof(xd->mb_segment_tree_probs));
897
898 tot_count = segment_counts[0] + segment_counts[1] + segment_counts[2] +
899 segment_counts[3];
900
901 if (tot_count) {
902 xd->mb_segment_tree_probs[0] =
903 ((segment_counts[0] + segment_counts[1]) * 255) / tot_count;
904
905 tot_count = segment_counts[0] + segment_counts[1];
906
907 if (tot_count > 0) {
908 xd->mb_segment_tree_probs[1] = (segment_counts[0] * 255) / tot_count;
909 }
910
911 tot_count = segment_counts[2] + segment_counts[3];
912
913 if (tot_count > 0) {
914 xd->mb_segment_tree_probs[2] = (segment_counts[2] * 255) / tot_count;
915 }
916
917 /* Zero probabilities not allowed */
918 for (i = 0; i < MB_FEATURE_TREE_PROBS; ++i) {
919 if (xd->mb_segment_tree_probs[i] == 0) xd->mb_segment_tree_probs[i] = 1;
920 }
921 }
922 }
923
924 /* projected_frame_size in units of BYTES */
925 cpi->projected_frame_size = totalrate >> 8;
926
927 /* Make a note of the percentage MBs coded Intra. */
928 if (cm->frame_type == KEY_FRAME) {
929 cpi->this_frame_percent_intra = 100;
930 } else {
931 int tot_modes;
932
933 tot_modes = cpi->mb.count_mb_ref_frame_usage[INTRA_FRAME] +
934 cpi->mb.count_mb_ref_frame_usage[LAST_FRAME] +
935 cpi->mb.count_mb_ref_frame_usage[GOLDEN_FRAME] +
936 cpi->mb.count_mb_ref_frame_usage[ALTREF_FRAME];
937
938 if (tot_modes) {
939 cpi->this_frame_percent_intra =
940 cpi->mb.count_mb_ref_frame_usage[INTRA_FRAME] * 100 / tot_modes;
941 }
942 }
943
944 #if !CONFIG_REALTIME_ONLY
945 /* Adjust the projected reference frame usage probability numbers to
946 * reflect what we have just seen. This may be useful when we make
947 * multiple iterations of the recode loop rather than continuing to use
948 * values from the previous frame.
949 */
950 if ((cm->frame_type != KEY_FRAME) &&
951 ((cpi->oxcf.number_of_layers > 1) ||
952 (!cm->refresh_alt_ref_frame && !cm->refresh_golden_frame))) {
953 vp8_convert_rfct_to_prob(cpi);
954 }
955 #endif
956 }
vp8_setup_block_ptrs(MACROBLOCK * x)957 void vp8_setup_block_ptrs(MACROBLOCK *x) {
958 int r, c;
959 int i;
960
961 for (r = 0; r < 4; ++r) {
962 for (c = 0; c < 4; ++c) {
963 x->block[r * 4 + c].src_diff = x->src_diff + r * 4 * 16 + c * 4;
964 }
965 }
966
967 for (r = 0; r < 2; ++r) {
968 for (c = 0; c < 2; ++c) {
969 x->block[16 + r * 2 + c].src_diff = x->src_diff + 256 + r * 4 * 8 + c * 4;
970 }
971 }
972
973 for (r = 0; r < 2; ++r) {
974 for (c = 0; c < 2; ++c) {
975 x->block[20 + r * 2 + c].src_diff = x->src_diff + 320 + r * 4 * 8 + c * 4;
976 }
977 }
978
979 x->block[24].src_diff = x->src_diff + 384;
980
981 for (i = 0; i < 25; ++i) {
982 x->block[i].coeff = x->coeff + i * 16;
983 }
984 }
985
vp8_build_block_offsets(MACROBLOCK * x)986 void vp8_build_block_offsets(MACROBLOCK *x) {
987 int block = 0;
988 int br, bc;
989
990 vp8_build_block_doffsets(&x->e_mbd);
991
992 /* y blocks */
993 x->thismb_ptr = &x->thismb[0];
994 for (br = 0; br < 4; ++br) {
995 for (bc = 0; bc < 4; ++bc) {
996 BLOCK *this_block = &x->block[block];
997 this_block->base_src = &x->thismb_ptr;
998 this_block->src_stride = 16;
999 this_block->src = 4 * br * 16 + 4 * bc;
1000 ++block;
1001 }
1002 }
1003
1004 /* u blocks */
1005 for (br = 0; br < 2; ++br) {
1006 for (bc = 0; bc < 2; ++bc) {
1007 BLOCK *this_block = &x->block[block];
1008 this_block->base_src = &x->src.u_buffer;
1009 this_block->src_stride = x->src.uv_stride;
1010 this_block->src = 4 * br * this_block->src_stride + 4 * bc;
1011 ++block;
1012 }
1013 }
1014
1015 /* v blocks */
1016 for (br = 0; br < 2; ++br) {
1017 for (bc = 0; bc < 2; ++bc) {
1018 BLOCK *this_block = &x->block[block];
1019 this_block->base_src = &x->src.v_buffer;
1020 this_block->src_stride = x->src.uv_stride;
1021 this_block->src = 4 * br * this_block->src_stride + 4 * bc;
1022 ++block;
1023 }
1024 }
1025 }
1026
sum_intra_stats(VP8_COMP * cpi,MACROBLOCK * x)1027 static void sum_intra_stats(VP8_COMP *cpi, MACROBLOCK *x) {
1028 const MACROBLOCKD *xd = &x->e_mbd;
1029 const MB_PREDICTION_MODE m = xd->mode_info_context->mbmi.mode;
1030 const MB_PREDICTION_MODE uvm = xd->mode_info_context->mbmi.uv_mode;
1031
1032 #ifdef MODE_STATS
1033 const int is_key = cpi->common.frame_type == KEY_FRAME;
1034
1035 ++(is_key ? uv_modes : inter_uv_modes)[uvm];
1036
1037 if (m == B_PRED) {
1038 unsigned int *const bct = is_key ? b_modes : inter_b_modes;
1039
1040 int b = 0;
1041
1042 do {
1043 ++bct[xd->block[b].bmi.mode];
1044 } while (++b < 16);
1045 }
1046
1047 #else
1048 (void)cpi;
1049 #endif
1050
1051 ++x->ymode_count[m];
1052 ++x->uv_mode_count[uvm];
1053 }
1054
1055 /* Experimental stub function to create a per MB zbin adjustment based on
1056 * some previously calculated measure of MB activity.
1057 */
adjust_act_zbin(VP8_COMP * cpi,MACROBLOCK * x)1058 static void adjust_act_zbin(VP8_COMP *cpi, MACROBLOCK *x) {
1059 #if USE_ACT_INDEX
1060 x->act_zbin_adj = *(x->mb_activity_ptr);
1061 #else
1062 int64_t a;
1063 int64_t b;
1064 int64_t act = *(x->mb_activity_ptr);
1065
1066 /* Apply the masking to the RD multiplier. */
1067 a = act + 4 * cpi->activity_avg;
1068 b = 4 * act + cpi->activity_avg;
1069
1070 if (act > cpi->activity_avg) {
1071 x->act_zbin_adj = (int)(((int64_t)b + (a >> 1)) / a) - 1;
1072 } else {
1073 x->act_zbin_adj = 1 - (int)(((int64_t)a + (b >> 1)) / b);
1074 }
1075 #endif
1076 }
1077
vp8cx_encode_intra_macroblock(VP8_COMP * cpi,MACROBLOCK * x,TOKENEXTRA ** t)1078 int vp8cx_encode_intra_macroblock(VP8_COMP *cpi, MACROBLOCK *x,
1079 TOKENEXTRA **t) {
1080 MACROBLOCKD *xd = &x->e_mbd;
1081 int rate;
1082
1083 if (cpi->sf.RD && cpi->compressor_speed != 2) {
1084 vp8_rd_pick_intra_mode(x, &rate);
1085 } else {
1086 vp8_pick_intra_mode(x, &rate);
1087 }
1088
1089 if (cpi->oxcf.tuning == VP8_TUNE_SSIM) {
1090 adjust_act_zbin(cpi, x);
1091 vp8_update_zbin_extra(cpi, x);
1092 }
1093
1094 if (x->e_mbd.mode_info_context->mbmi.mode == B_PRED) {
1095 vp8_encode_intra4x4mby(x);
1096 } else {
1097 vp8_encode_intra16x16mby(x);
1098 }
1099
1100 vp8_encode_intra16x16mbuv(x);
1101
1102 sum_intra_stats(cpi, x);
1103
1104 vp8_tokenize_mb(cpi, x, t);
1105
1106 if (xd->mode_info_context->mbmi.mode != B_PRED) vp8_inverse_transform_mby(xd);
1107
1108 vp8_dequant_idct_add_uv_block(xd->qcoeff + 16 * 16, xd->dequant_uv,
1109 xd->dst.u_buffer, xd->dst.v_buffer,
1110 xd->dst.uv_stride, xd->eobs + 16);
1111 return rate;
1112 }
1113 #ifdef SPEEDSTATS
1114 extern int cnt_pm;
1115 #endif
1116
1117 extern void vp8_fix_contexts(MACROBLOCKD *x);
1118
vp8cx_encode_inter_macroblock(VP8_COMP * cpi,MACROBLOCK * x,TOKENEXTRA ** t,int recon_yoffset,int recon_uvoffset,int mb_row,int mb_col)1119 int vp8cx_encode_inter_macroblock(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t,
1120 int recon_yoffset, int recon_uvoffset,
1121 int mb_row, int mb_col) {
1122 MACROBLOCKD *const xd = &x->e_mbd;
1123 int intra_error = 0;
1124 int rate;
1125 int distortion;
1126
1127 x->skip = 0;
1128
1129 if (xd->segmentation_enabled) {
1130 x->encode_breakout =
1131 cpi->segment_encode_breakout[xd->mode_info_context->mbmi.segment_id];
1132 } else {
1133 x->encode_breakout = cpi->oxcf.encode_breakout;
1134 }
1135
1136 #if CONFIG_TEMPORAL_DENOISING
1137 /* Reset the best sse mode/mv for each macroblock. */
1138 x->best_reference_frame = INTRA_FRAME;
1139 x->best_zeromv_reference_frame = INTRA_FRAME;
1140 x->best_sse_inter_mode = 0;
1141 x->best_sse_mv.as_int = 0;
1142 x->need_to_clamp_best_mvs = 0;
1143 #endif
1144
1145 if (cpi->sf.RD) {
1146 int zbin_mode_boost_enabled = x->zbin_mode_boost_enabled;
1147
1148 /* Are we using the fast quantizer for the mode selection? */
1149 if (cpi->sf.use_fastquant_for_pick) {
1150 x->quantize_b = vp8_fast_quantize_b;
1151
1152 /* the fast quantizer does not use zbin_extra, so
1153 * do not recalculate */
1154 x->zbin_mode_boost_enabled = 0;
1155 }
1156 vp8_rd_pick_inter_mode(cpi, x, recon_yoffset, recon_uvoffset, &rate,
1157 &distortion, &intra_error, mb_row, mb_col);
1158
1159 /* switch back to the regular quantizer for the encode */
1160 if (cpi->sf.improved_quant) {
1161 x->quantize_b = vp8_regular_quantize_b;
1162 }
1163
1164 /* restore cpi->zbin_mode_boost_enabled */
1165 x->zbin_mode_boost_enabled = zbin_mode_boost_enabled;
1166
1167 } else {
1168 vp8_pick_inter_mode(cpi, x, recon_yoffset, recon_uvoffset, &rate,
1169 &distortion, &intra_error, mb_row, mb_col);
1170 }
1171
1172 x->prediction_error += distortion;
1173 x->intra_error += intra_error;
1174
1175 if (cpi->oxcf.tuning == VP8_TUNE_SSIM) {
1176 /* Adjust the zbin based on this MB rate. */
1177 adjust_act_zbin(cpi, x);
1178 }
1179
1180 #if 0
1181 /* Experimental RD code */
1182 cpi->frame_distortion += distortion;
1183 cpi->last_mb_distortion = distortion;
1184 #endif
1185
1186 /* MB level adjutment to quantizer setup */
1187 if (xd->segmentation_enabled) {
1188 /* If cyclic update enabled */
1189 if (cpi->current_layer == 0 && cpi->cyclic_refresh_mode_enabled) {
1190 /* Clear segment_id back to 0 if not coded (last frame 0,0) */
1191 if ((xd->mode_info_context->mbmi.segment_id == 1) &&
1192 ((xd->mode_info_context->mbmi.ref_frame != LAST_FRAME) ||
1193 (xd->mode_info_context->mbmi.mode != ZEROMV))) {
1194 xd->mode_info_context->mbmi.segment_id = 0;
1195
1196 /* segment_id changed, so update */
1197 vp8cx_mb_init_quantizer(cpi, x, 1);
1198 }
1199 }
1200 }
1201
1202 {
1203 /* Experimental code.
1204 * Special case for gf and arf zeromv modes, for 1 temporal layer.
1205 * Increase zbin size to supress noise.
1206 */
1207 x->zbin_mode_boost = 0;
1208 if (x->zbin_mode_boost_enabled) {
1209 if (xd->mode_info_context->mbmi.ref_frame != INTRA_FRAME) {
1210 if (xd->mode_info_context->mbmi.mode == ZEROMV) {
1211 if (xd->mode_info_context->mbmi.ref_frame != LAST_FRAME &&
1212 cpi->oxcf.number_of_layers == 1) {
1213 x->zbin_mode_boost = GF_ZEROMV_ZBIN_BOOST;
1214 } else {
1215 x->zbin_mode_boost = LF_ZEROMV_ZBIN_BOOST;
1216 }
1217 } else if (xd->mode_info_context->mbmi.mode == SPLITMV) {
1218 x->zbin_mode_boost = 0;
1219 } else {
1220 x->zbin_mode_boost = MV_ZBIN_BOOST;
1221 }
1222 }
1223 }
1224
1225 /* The fast quantizer doesn't use zbin_extra, only do so with
1226 * the regular quantizer. */
1227 if (cpi->sf.improved_quant) vp8_update_zbin_extra(cpi, x);
1228 }
1229
1230 x->count_mb_ref_frame_usage[xd->mode_info_context->mbmi.ref_frame]++;
1231
1232 if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME) {
1233 vp8_encode_intra16x16mbuv(x);
1234
1235 if (xd->mode_info_context->mbmi.mode == B_PRED) {
1236 vp8_encode_intra4x4mby(x);
1237 } else {
1238 vp8_encode_intra16x16mby(x);
1239 }
1240
1241 sum_intra_stats(cpi, x);
1242 } else {
1243 int ref_fb_idx;
1244
1245 if (xd->mode_info_context->mbmi.ref_frame == LAST_FRAME) {
1246 ref_fb_idx = cpi->common.lst_fb_idx;
1247 } else if (xd->mode_info_context->mbmi.ref_frame == GOLDEN_FRAME) {
1248 ref_fb_idx = cpi->common.gld_fb_idx;
1249 } else {
1250 ref_fb_idx = cpi->common.alt_fb_idx;
1251 }
1252
1253 xd->pre.y_buffer = cpi->common.yv12_fb[ref_fb_idx].y_buffer + recon_yoffset;
1254 xd->pre.u_buffer =
1255 cpi->common.yv12_fb[ref_fb_idx].u_buffer + recon_uvoffset;
1256 xd->pre.v_buffer =
1257 cpi->common.yv12_fb[ref_fb_idx].v_buffer + recon_uvoffset;
1258
1259 if (!x->skip) {
1260 vp8_encode_inter16x16(x);
1261 } else {
1262 vp8_build_inter16x16_predictors_mb(xd, xd->dst.y_buffer, xd->dst.u_buffer,
1263 xd->dst.v_buffer, xd->dst.y_stride,
1264 xd->dst.uv_stride);
1265 }
1266 }
1267
1268 if (!x->skip) {
1269 vp8_tokenize_mb(cpi, x, t);
1270
1271 if (xd->mode_info_context->mbmi.mode != B_PRED) {
1272 vp8_inverse_transform_mby(xd);
1273 }
1274
1275 vp8_dequant_idct_add_uv_block(xd->qcoeff + 16 * 16, xd->dequant_uv,
1276 xd->dst.u_buffer, xd->dst.v_buffer,
1277 xd->dst.uv_stride, xd->eobs + 16);
1278 } else {
1279 /* always set mb_skip_coeff as it is needed by the loopfilter */
1280 xd->mode_info_context->mbmi.mb_skip_coeff = 1;
1281
1282 if (cpi->common.mb_no_coeff_skip) {
1283 x->skip_true_count++;
1284 vp8_fix_contexts(xd);
1285 } else {
1286 vp8_stuff_mb(cpi, x, t);
1287 }
1288 }
1289
1290 return rate;
1291 }
1292