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 <assert.h>
12 #include <math.h>
13
14 #include "./vp9_rtcd.h"
15
16 #include "vpx_mem/vpx_mem.h"
17
18 #include "vp9/common/vp9_common.h"
19 #include "vp9/common/vp9_entropy.h"
20 #include "vp9/common/vp9_entropymode.h"
21 #include "vp9/common/vp9_idct.h"
22 #include "vp9/common/vp9_mvref_common.h"
23 #include "vp9/common/vp9_pred_common.h"
24 #include "vp9/common/vp9_quant_common.h"
25 #include "vp9/common/vp9_reconinter.h"
26 #include "vp9/common/vp9_reconintra.h"
27 #include "vp9/common/vp9_seg_common.h"
28 #include "vp9/common/vp9_systemdependent.h"
29
30 #include "vp9/encoder/vp9_cost.h"
31 #include "vp9/encoder/vp9_encodemb.h"
32 #include "vp9/encoder/vp9_encodemv.h"
33 #include "vp9/encoder/vp9_encoder.h"
34 #include "vp9/encoder/vp9_mcomp.h"
35 #include "vp9/encoder/vp9_quantize.h"
36 #include "vp9/encoder/vp9_ratectrl.h"
37 #include "vp9/encoder/vp9_rd.h"
38 #include "vp9/encoder/vp9_rdopt.h"
39 #include "vp9/encoder/vp9_variance.h"
40
41 #define RD_THRESH_MAX_FACT 64
42 #define RD_THRESH_INC 1
43
44 #define LAST_FRAME_MODE_MASK 0xFFEDCD60
45 #define GOLDEN_FRAME_MODE_MASK 0xFFDA3BB0
46 #define ALT_REF_MODE_MASK 0xFFC648D0
47
48 #define MIN_EARLY_TERM_INDEX 3
49
50 typedef struct {
51 PREDICTION_MODE mode;
52 MV_REFERENCE_FRAME ref_frame[2];
53 } MODE_DEFINITION;
54
55 typedef struct {
56 MV_REFERENCE_FRAME ref_frame[2];
57 } REF_DEFINITION;
58
59 struct rdcost_block_args {
60 MACROBLOCK *x;
61 ENTROPY_CONTEXT t_above[16];
62 ENTROPY_CONTEXT t_left[16];
63 int rate;
64 int64_t dist;
65 int64_t sse;
66 int this_rate;
67 int64_t this_dist;
68 int64_t this_sse;
69 int64_t this_rd;
70 int64_t best_rd;
71 int skip;
72 int use_fast_coef_costing;
73 const scan_order *so;
74 };
75
76 static const MODE_DEFINITION vp9_mode_order[MAX_MODES] = {
77 {NEARESTMV, {LAST_FRAME, NONE}},
78 {NEARESTMV, {ALTREF_FRAME, NONE}},
79 {NEARESTMV, {GOLDEN_FRAME, NONE}},
80
81 {DC_PRED, {INTRA_FRAME, NONE}},
82
83 {NEWMV, {LAST_FRAME, NONE}},
84 {NEWMV, {ALTREF_FRAME, NONE}},
85 {NEWMV, {GOLDEN_FRAME, NONE}},
86
87 {NEARMV, {LAST_FRAME, NONE}},
88 {NEARMV, {ALTREF_FRAME, NONE}},
89 {NEARESTMV, {LAST_FRAME, ALTREF_FRAME}},
90 {NEARESTMV, {GOLDEN_FRAME, ALTREF_FRAME}},
91
92 {TM_PRED, {INTRA_FRAME, NONE}},
93
94 {NEARMV, {LAST_FRAME, ALTREF_FRAME}},
95 {NEWMV, {LAST_FRAME, ALTREF_FRAME}},
96 {NEARMV, {GOLDEN_FRAME, NONE}},
97 {NEARMV, {GOLDEN_FRAME, ALTREF_FRAME}},
98 {NEWMV, {GOLDEN_FRAME, ALTREF_FRAME}},
99
100 {ZEROMV, {LAST_FRAME, NONE}},
101 {ZEROMV, {GOLDEN_FRAME, NONE}},
102 {ZEROMV, {ALTREF_FRAME, NONE}},
103 {ZEROMV, {LAST_FRAME, ALTREF_FRAME}},
104 {ZEROMV, {GOLDEN_FRAME, ALTREF_FRAME}},
105
106 {H_PRED, {INTRA_FRAME, NONE}},
107 {V_PRED, {INTRA_FRAME, NONE}},
108 {D135_PRED, {INTRA_FRAME, NONE}},
109 {D207_PRED, {INTRA_FRAME, NONE}},
110 {D153_PRED, {INTRA_FRAME, NONE}},
111 {D63_PRED, {INTRA_FRAME, NONE}},
112 {D117_PRED, {INTRA_FRAME, NONE}},
113 {D45_PRED, {INTRA_FRAME, NONE}},
114 };
115
116 static const REF_DEFINITION vp9_ref_order[MAX_REFS] = {
117 {{LAST_FRAME, NONE}},
118 {{GOLDEN_FRAME, NONE}},
119 {{ALTREF_FRAME, NONE}},
120 {{LAST_FRAME, ALTREF_FRAME}},
121 {{GOLDEN_FRAME, ALTREF_FRAME}},
122 {{INTRA_FRAME, NONE}},
123 };
124
raster_block_offset(BLOCK_SIZE plane_bsize,int raster_block,int stride)125 static int raster_block_offset(BLOCK_SIZE plane_bsize,
126 int raster_block, int stride) {
127 const int bw = b_width_log2(plane_bsize);
128 const int y = 4 * (raster_block >> bw);
129 const int x = 4 * (raster_block & ((1 << bw) - 1));
130 return y * stride + x;
131 }
raster_block_offset_int16(BLOCK_SIZE plane_bsize,int raster_block,int16_t * base)132 static int16_t* raster_block_offset_int16(BLOCK_SIZE plane_bsize,
133 int raster_block, int16_t *base) {
134 const int stride = 4 * num_4x4_blocks_wide_lookup[plane_bsize];
135 return base + raster_block_offset(plane_bsize, raster_block, stride);
136 }
137
swap_block_ptr(MACROBLOCK * x,PICK_MODE_CONTEXT * ctx,int m,int n,int min_plane,int max_plane)138 static void swap_block_ptr(MACROBLOCK *x, PICK_MODE_CONTEXT *ctx,
139 int m, int n, int min_plane, int max_plane) {
140 int i;
141
142 for (i = min_plane; i < max_plane; ++i) {
143 struct macroblock_plane *const p = &x->plane[i];
144 struct macroblockd_plane *const pd = &x->e_mbd.plane[i];
145
146 p->coeff = ctx->coeff_pbuf[i][m];
147 p->qcoeff = ctx->qcoeff_pbuf[i][m];
148 pd->dqcoeff = ctx->dqcoeff_pbuf[i][m];
149 p->eobs = ctx->eobs_pbuf[i][m];
150
151 ctx->coeff_pbuf[i][m] = ctx->coeff_pbuf[i][n];
152 ctx->qcoeff_pbuf[i][m] = ctx->qcoeff_pbuf[i][n];
153 ctx->dqcoeff_pbuf[i][m] = ctx->dqcoeff_pbuf[i][n];
154 ctx->eobs_pbuf[i][m] = ctx->eobs_pbuf[i][n];
155
156 ctx->coeff_pbuf[i][n] = p->coeff;
157 ctx->qcoeff_pbuf[i][n] = p->qcoeff;
158 ctx->dqcoeff_pbuf[i][n] = pd->dqcoeff;
159 ctx->eobs_pbuf[i][n] = p->eobs;
160 }
161 }
162
model_rd_for_sb(VP9_COMP * cpi,BLOCK_SIZE bsize,MACROBLOCK * x,MACROBLOCKD * xd,int * out_rate_sum,int64_t * out_dist_sum)163 static void model_rd_for_sb(VP9_COMP *cpi, BLOCK_SIZE bsize,
164 MACROBLOCK *x, MACROBLOCKD *xd,
165 int *out_rate_sum, int64_t *out_dist_sum) {
166 // Note our transform coeffs are 8 times an orthogonal transform.
167 // Hence quantizer step is also 8 times. To get effective quantizer
168 // we need to divide by 8 before sending to modeling function.
169 int i;
170 int64_t rate_sum = 0;
171 int64_t dist_sum = 0;
172 const int ref = xd->mi[0]->mbmi.ref_frame[0];
173 unsigned int sse;
174 const int shift = 8;
175
176 for (i = 0; i < MAX_MB_PLANE; ++i) {
177 struct macroblock_plane *const p = &x->plane[i];
178 struct macroblockd_plane *const pd = &xd->plane[i];
179 const BLOCK_SIZE bs = get_plane_block_size(bsize, pd);
180
181 const unsigned int var = cpi->fn_ptr[bs].vf(p->src.buf, p->src.stride,
182 pd->dst.buf, pd->dst.stride,
183 &sse);
184
185 if (!x->select_tx_size) {
186 if (sse < p->quant_thred[0] >> shift)
187 x->skip_txfm[i] = 1;
188 else if (var < p->quant_thred[1] >> shift)
189 x->skip_txfm[i] = 2;
190 else
191 x->skip_txfm[i] = 0;
192 }
193
194 x->bsse[i] = sse;
195 if (i == 0)
196 x->pred_sse[ref] = sse;
197
198 // Fast approximate the modelling function.
199 if (cpi->oxcf.speed > 4) {
200 int64_t rate;
201 int64_t dist;
202 int64_t square_error = sse;
203 int quantizer = (pd->dequant[1] >> 3);
204
205 if (quantizer < 120)
206 rate = (square_error * (280 - quantizer)) >> 8;
207 else
208 rate = 0;
209 dist = (square_error * quantizer) >> 8;
210 rate_sum += rate;
211 dist_sum += dist;
212 } else {
213 int rate;
214 int64_t dist;
215 vp9_model_rd_from_var_lapndz(sse, 1 << num_pels_log2_lookup[bs],
216 pd->dequant[1] >> 3, &rate, &dist);
217 rate_sum += rate;
218 dist_sum += dist;
219 }
220 }
221
222 *out_rate_sum = (int)rate_sum;
223 *out_dist_sum = dist_sum << 4;
224 }
225
vp9_block_error_c(const int16_t * coeff,const int16_t * dqcoeff,intptr_t block_size,int64_t * ssz)226 int64_t vp9_block_error_c(const int16_t *coeff, const int16_t *dqcoeff,
227 intptr_t block_size, int64_t *ssz) {
228 int i;
229 int64_t error = 0, sqcoeff = 0;
230
231 for (i = 0; i < block_size; i++) {
232 const int diff = coeff[i] - dqcoeff[i];
233 error += diff * diff;
234 sqcoeff += coeff[i] * coeff[i];
235 }
236
237 *ssz = sqcoeff;
238 return error;
239 }
240
241 /* The trailing '0' is a terminator which is used inside cost_coeffs() to
242 * decide whether to include cost of a trailing EOB node or not (i.e. we
243 * can skip this if the last coefficient in this transform block, e.g. the
244 * 16th coefficient in a 4x4 block or the 64th coefficient in a 8x8 block,
245 * were non-zero). */
246 static const int16_t band_counts[TX_SIZES][8] = {
247 { 1, 2, 3, 4, 3, 16 - 13, 0 },
248 { 1, 2, 3, 4, 11, 64 - 21, 0 },
249 { 1, 2, 3, 4, 11, 256 - 21, 0 },
250 { 1, 2, 3, 4, 11, 1024 - 21, 0 },
251 };
cost_coeffs(MACROBLOCK * x,int plane,int block,ENTROPY_CONTEXT * A,ENTROPY_CONTEXT * L,TX_SIZE tx_size,const int16_t * scan,const int16_t * nb,int use_fast_coef_costing)252 static INLINE int cost_coeffs(MACROBLOCK *x,
253 int plane, int block,
254 ENTROPY_CONTEXT *A, ENTROPY_CONTEXT *L,
255 TX_SIZE tx_size,
256 const int16_t *scan, const int16_t *nb,
257 int use_fast_coef_costing) {
258 MACROBLOCKD *const xd = &x->e_mbd;
259 MB_MODE_INFO *mbmi = &xd->mi[0]->mbmi;
260 const struct macroblock_plane *p = &x->plane[plane];
261 const struct macroblockd_plane *pd = &xd->plane[plane];
262 const PLANE_TYPE type = pd->plane_type;
263 const int16_t *band_count = &band_counts[tx_size][1];
264 const int eob = p->eobs[block];
265 const int16_t *const qcoeff = BLOCK_OFFSET(p->qcoeff, block);
266 unsigned int (*token_costs)[2][COEFF_CONTEXTS][ENTROPY_TOKENS] =
267 x->token_costs[tx_size][type][is_inter_block(mbmi)];
268 uint8_t token_cache[32 * 32];
269 int pt = combine_entropy_contexts(*A, *L);
270 int c, cost;
271 // Check for consistency of tx_size with mode info
272 assert(type == PLANE_TYPE_Y ? mbmi->tx_size == tx_size
273 : get_uv_tx_size(mbmi, pd) == tx_size);
274
275 if (eob == 0) {
276 // single eob token
277 cost = token_costs[0][0][pt][EOB_TOKEN];
278 c = 0;
279 } else {
280 int band_left = *band_count++;
281
282 // dc token
283 int v = qcoeff[0];
284 int prev_t = vp9_dct_value_tokens_ptr[v].token;
285 cost = (*token_costs)[0][pt][prev_t] + vp9_dct_value_cost_ptr[v];
286 token_cache[0] = vp9_pt_energy_class[prev_t];
287 ++token_costs;
288
289 // ac tokens
290 for (c = 1; c < eob; c++) {
291 const int rc = scan[c];
292 int t;
293
294 v = qcoeff[rc];
295 t = vp9_dct_value_tokens_ptr[v].token;
296 if (use_fast_coef_costing) {
297 cost += (*token_costs)[!prev_t][!prev_t][t] + vp9_dct_value_cost_ptr[v];
298 } else {
299 pt = get_coef_context(nb, token_cache, c);
300 cost += (*token_costs)[!prev_t][pt][t] + vp9_dct_value_cost_ptr[v];
301 token_cache[rc] = vp9_pt_energy_class[t];
302 }
303 prev_t = t;
304 if (!--band_left) {
305 band_left = *band_count++;
306 ++token_costs;
307 }
308 }
309
310 // eob token
311 if (band_left) {
312 if (use_fast_coef_costing) {
313 cost += (*token_costs)[0][!prev_t][EOB_TOKEN];
314 } else {
315 pt = get_coef_context(nb, token_cache, c);
316 cost += (*token_costs)[0][pt][EOB_TOKEN];
317 }
318 }
319 }
320
321 // is eob first coefficient;
322 *A = *L = (c > 0);
323
324 return cost;
325 }
dist_block(int plane,int block,TX_SIZE tx_size,struct rdcost_block_args * args)326 static void dist_block(int plane, int block, TX_SIZE tx_size,
327 struct rdcost_block_args* args) {
328 const int ss_txfrm_size = tx_size << 1;
329 MACROBLOCK* const x = args->x;
330 MACROBLOCKD* const xd = &x->e_mbd;
331 const struct macroblock_plane *const p = &x->plane[plane];
332 const struct macroblockd_plane *const pd = &xd->plane[plane];
333 int64_t this_sse;
334 int shift = tx_size == TX_32X32 ? 0 : 2;
335 int16_t *const coeff = BLOCK_OFFSET(p->coeff, block);
336 int16_t *const dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block);
337 args->dist = vp9_block_error(coeff, dqcoeff, 16 << ss_txfrm_size,
338 &this_sse) >> shift;
339 args->sse = this_sse >> shift;
340
341 if (x->skip_encode && !is_inter_block(&xd->mi[0]->mbmi)) {
342 // TODO(jingning): tune the model to better capture the distortion.
343 int64_t p = (pd->dequant[1] * pd->dequant[1] *
344 (1 << ss_txfrm_size)) >> (shift + 2);
345 args->dist += (p >> 4);
346 args->sse += p;
347 }
348 }
349
rate_block(int plane,int block,BLOCK_SIZE plane_bsize,TX_SIZE tx_size,struct rdcost_block_args * args)350 static void rate_block(int plane, int block, BLOCK_SIZE plane_bsize,
351 TX_SIZE tx_size, struct rdcost_block_args* args) {
352 int x_idx, y_idx;
353 txfrm_block_to_raster_xy(plane_bsize, tx_size, block, &x_idx, &y_idx);
354
355 args->rate = cost_coeffs(args->x, plane, block, args->t_above + x_idx,
356 args->t_left + y_idx, tx_size,
357 args->so->scan, args->so->neighbors,
358 args->use_fast_coef_costing);
359 }
360
block_rd_txfm(int plane,int block,BLOCK_SIZE plane_bsize,TX_SIZE tx_size,void * arg)361 static void block_rd_txfm(int plane, int block, BLOCK_SIZE plane_bsize,
362 TX_SIZE tx_size, void *arg) {
363 struct rdcost_block_args *args = arg;
364 MACROBLOCK *const x = args->x;
365 MACROBLOCKD *const xd = &x->e_mbd;
366 MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
367 int64_t rd1, rd2, rd;
368
369 if (args->skip)
370 return;
371
372 if (!is_inter_block(mbmi)) {
373 vp9_encode_block_intra(x, plane, block, plane_bsize, tx_size, &mbmi->skip);
374 dist_block(plane, block, tx_size, args);
375 } else {
376 if (x->skip_txfm[plane] == 0) {
377 // full forward transform and quantization
378 vp9_xform_quant(x, plane, block, plane_bsize, tx_size);
379 dist_block(plane, block, tx_size, args);
380 } else if (x->skip_txfm[plane] == 2) {
381 // compute DC coefficient
382 int16_t *const coeff = BLOCK_OFFSET(x->plane[plane].coeff, block);
383 int16_t *const dqcoeff = BLOCK_OFFSET(xd->plane[plane].dqcoeff, block);
384 vp9_xform_quant_dc(x, plane, block, plane_bsize, tx_size);
385 args->sse = x->bsse[plane] << 4;
386 args->dist = args->sse;
387 if (!x->plane[plane].eobs[block])
388 args->dist = args->sse - ((coeff[0] * coeff[0] -
389 (coeff[0] - dqcoeff[0]) * (coeff[0] - dqcoeff[0])) >> 2);
390 } else {
391 // skip forward transform
392 x->plane[plane].eobs[block] = 0;
393 args->sse = x->bsse[plane] << 4;
394 args->dist = args->sse;
395 }
396 }
397
398 rate_block(plane, block, plane_bsize, tx_size, args);
399 rd1 = RDCOST(x->rdmult, x->rddiv, args->rate, args->dist);
400 rd2 = RDCOST(x->rdmult, x->rddiv, 0, args->sse);
401
402 // TODO(jingning): temporarily enabled only for luma component
403 rd = MIN(rd1, rd2);
404 if (plane == 0)
405 x->zcoeff_blk[tx_size][block] = !x->plane[plane].eobs[block] ||
406 (rd1 > rd2 && !xd->lossless);
407
408 args->this_rate += args->rate;
409 args->this_dist += args->dist;
410 args->this_sse += args->sse;
411 args->this_rd += rd;
412
413 if (args->this_rd > args->best_rd) {
414 args->skip = 1;
415 return;
416 }
417 }
418
txfm_rd_in_plane(MACROBLOCK * x,int * rate,int64_t * distortion,int * skippable,int64_t * sse,int64_t ref_best_rd,int plane,BLOCK_SIZE bsize,TX_SIZE tx_size,int use_fast_coef_casting)419 static void txfm_rd_in_plane(MACROBLOCK *x,
420 int *rate, int64_t *distortion,
421 int *skippable, int64_t *sse,
422 int64_t ref_best_rd, int plane,
423 BLOCK_SIZE bsize, TX_SIZE tx_size,
424 int use_fast_coef_casting) {
425 MACROBLOCKD *const xd = &x->e_mbd;
426 const struct macroblockd_plane *const pd = &xd->plane[plane];
427 struct rdcost_block_args args;
428 vp9_zero(args);
429 args.x = x;
430 args.best_rd = ref_best_rd;
431 args.use_fast_coef_costing = use_fast_coef_casting;
432
433 if (plane == 0)
434 xd->mi[0]->mbmi.tx_size = tx_size;
435
436 vp9_get_entropy_contexts(bsize, tx_size, pd, args.t_above, args.t_left);
437
438 args.so = get_scan(xd, tx_size, pd->plane_type, 0);
439
440 vp9_foreach_transformed_block_in_plane(xd, bsize, plane,
441 block_rd_txfm, &args);
442 if (args.skip) {
443 *rate = INT_MAX;
444 *distortion = INT64_MAX;
445 *sse = INT64_MAX;
446 *skippable = 0;
447 } else {
448 *distortion = args.this_dist;
449 *rate = args.this_rate;
450 *sse = args.this_sse;
451 *skippable = vp9_is_skippable_in_plane(x, bsize, plane);
452 }
453 }
454
choose_largest_tx_size(VP9_COMP * cpi,MACROBLOCK * x,int * rate,int64_t * distortion,int * skip,int64_t * sse,int64_t ref_best_rd,BLOCK_SIZE bs)455 static void choose_largest_tx_size(VP9_COMP *cpi, MACROBLOCK *x,
456 int *rate, int64_t *distortion,
457 int *skip, int64_t *sse,
458 int64_t ref_best_rd,
459 BLOCK_SIZE bs) {
460 const TX_SIZE max_tx_size = max_txsize_lookup[bs];
461 VP9_COMMON *const cm = &cpi->common;
462 const TX_SIZE largest_tx_size = tx_mode_to_biggest_tx_size[cm->tx_mode];
463 MACROBLOCKD *const xd = &x->e_mbd;
464 MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
465
466 mbmi->tx_size = MIN(max_tx_size, largest_tx_size);
467
468 txfm_rd_in_plane(x, rate, distortion, skip,
469 sse, ref_best_rd, 0, bs,
470 mbmi->tx_size, cpi->sf.use_fast_coef_costing);
471 cpi->tx_stepdown_count[0]++;
472 }
473
choose_tx_size_from_rd(VP9_COMP * cpi,MACROBLOCK * x,int * rate,int64_t * distortion,int * skip,int64_t * psse,int64_t tx_cache[TX_MODES],int64_t ref_best_rd,BLOCK_SIZE bs)474 static void choose_tx_size_from_rd(VP9_COMP *cpi, MACROBLOCK *x,
475 int *rate,
476 int64_t *distortion,
477 int *skip,
478 int64_t *psse,
479 int64_t tx_cache[TX_MODES],
480 int64_t ref_best_rd,
481 BLOCK_SIZE bs) {
482 const TX_SIZE max_tx_size = max_txsize_lookup[bs];
483 VP9_COMMON *const cm = &cpi->common;
484 MACROBLOCKD *const xd = &x->e_mbd;
485 MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
486 vp9_prob skip_prob = vp9_get_skip_prob(cm, xd);
487 int r[TX_SIZES][2], s[TX_SIZES];
488 int64_t d[TX_SIZES], sse[TX_SIZES];
489 int64_t rd[TX_SIZES][2] = {{INT64_MAX, INT64_MAX},
490 {INT64_MAX, INT64_MAX},
491 {INT64_MAX, INT64_MAX},
492 {INT64_MAX, INT64_MAX}};
493 TX_SIZE n, m;
494 int s0, s1;
495 const TX_SIZE max_mode_tx_size = tx_mode_to_biggest_tx_size[cm->tx_mode];
496 int64_t best_rd = INT64_MAX;
497 TX_SIZE best_tx = TX_4X4;
498
499 const vp9_prob *tx_probs = get_tx_probs2(max_tx_size, xd, &cm->fc.tx_probs);
500 assert(skip_prob > 0);
501 s0 = vp9_cost_bit(skip_prob, 0);
502 s1 = vp9_cost_bit(skip_prob, 1);
503
504 for (n = TX_4X4; n <= max_tx_size; n++) {
505 txfm_rd_in_plane(x, &r[n][0], &d[n], &s[n],
506 &sse[n], ref_best_rd, 0, bs, n,
507 cpi->sf.use_fast_coef_costing);
508 r[n][1] = r[n][0];
509 if (r[n][0] < INT_MAX) {
510 for (m = 0; m <= n - (n == max_tx_size); m++) {
511 if (m == n)
512 r[n][1] += vp9_cost_zero(tx_probs[m]);
513 else
514 r[n][1] += vp9_cost_one(tx_probs[m]);
515 }
516 }
517 if (d[n] == INT64_MAX) {
518 rd[n][0] = rd[n][1] = INT64_MAX;
519 } else if (s[n]) {
520 rd[n][0] = rd[n][1] = RDCOST(x->rdmult, x->rddiv, s1, d[n]);
521 } else {
522 rd[n][0] = RDCOST(x->rdmult, x->rddiv, r[n][0] + s0, d[n]);
523 rd[n][1] = RDCOST(x->rdmult, x->rddiv, r[n][1] + s0, d[n]);
524 }
525
526 if (rd[n][1] < best_rd) {
527 best_tx = n;
528 best_rd = rd[n][1];
529 }
530 }
531 mbmi->tx_size = cm->tx_mode == TX_MODE_SELECT ?
532 best_tx : MIN(max_tx_size, max_mode_tx_size);
533
534
535 *distortion = d[mbmi->tx_size];
536 *rate = r[mbmi->tx_size][cm->tx_mode == TX_MODE_SELECT];
537 *skip = s[mbmi->tx_size];
538 *psse = sse[mbmi->tx_size];
539
540 tx_cache[ONLY_4X4] = rd[TX_4X4][0];
541 tx_cache[ALLOW_8X8] = rd[TX_8X8][0];
542 tx_cache[ALLOW_16X16] = rd[MIN(max_tx_size, TX_16X16)][0];
543 tx_cache[ALLOW_32X32] = rd[MIN(max_tx_size, TX_32X32)][0];
544
545 if (max_tx_size == TX_32X32 && best_tx == TX_32X32) {
546 tx_cache[TX_MODE_SELECT] = rd[TX_32X32][1];
547 cpi->tx_stepdown_count[0]++;
548 } else if (max_tx_size >= TX_16X16 && best_tx == TX_16X16) {
549 tx_cache[TX_MODE_SELECT] = rd[TX_16X16][1];
550 cpi->tx_stepdown_count[max_tx_size - TX_16X16]++;
551 } else if (rd[TX_8X8][1] < rd[TX_4X4][1]) {
552 tx_cache[TX_MODE_SELECT] = rd[TX_8X8][1];
553 cpi->tx_stepdown_count[max_tx_size - TX_8X8]++;
554 } else {
555 tx_cache[TX_MODE_SELECT] = rd[TX_4X4][1];
556 cpi->tx_stepdown_count[max_tx_size - TX_4X4]++;
557 }
558 }
559
inter_super_block_yrd(VP9_COMP * cpi,MACROBLOCK * x,int * rate,int64_t * distortion,int * skip,int64_t * psse,BLOCK_SIZE bs,int64_t txfm_cache[TX_MODES],int64_t ref_best_rd)560 static void inter_super_block_yrd(VP9_COMP *cpi, MACROBLOCK *x, int *rate,
561 int64_t *distortion, int *skip,
562 int64_t *psse, BLOCK_SIZE bs,
563 int64_t txfm_cache[TX_MODES],
564 int64_t ref_best_rd) {
565 MACROBLOCKD *xd = &x->e_mbd;
566
567 assert(bs == xd->mi[0]->mbmi.sb_type);
568
569 vp9_subtract_plane(x, bs, 0);
570
571 if (cpi->sf.tx_size_search_method == USE_LARGESTALL || xd->lossless) {
572 vpx_memset(txfm_cache, 0, TX_MODES * sizeof(int64_t));
573 choose_largest_tx_size(cpi, x, rate, distortion, skip, psse, ref_best_rd,
574 bs);
575 } else {
576 choose_tx_size_from_rd(cpi, x, rate, distortion, skip, psse,
577 txfm_cache, ref_best_rd, bs);
578 }
579 }
580
intra_super_block_yrd(VP9_COMP * cpi,MACROBLOCK * x,int * rate,int64_t * distortion,int * skip,BLOCK_SIZE bs,int64_t txfm_cache[TX_MODES],int64_t ref_best_rd)581 static void intra_super_block_yrd(VP9_COMP *cpi, MACROBLOCK *x, int *rate,
582 int64_t *distortion, int *skip,
583 BLOCK_SIZE bs,
584 int64_t txfm_cache[TX_MODES],
585 int64_t ref_best_rd) {
586 MACROBLOCKD *xd = &x->e_mbd;
587 int64_t sse;
588
589 assert(bs == xd->mi[0]->mbmi.sb_type);
590 if (cpi->sf.tx_size_search_method != USE_FULL_RD || xd->lossless) {
591 vpx_memset(txfm_cache, 0, TX_MODES * sizeof(int64_t));
592 choose_largest_tx_size(cpi, x, rate, distortion, skip, &sse, ref_best_rd,
593 bs);
594 } else {
595 choose_tx_size_from_rd(cpi, x, rate, distortion, skip, &sse,
596 txfm_cache, ref_best_rd, bs);
597 }
598 }
599
600
conditional_skipintra(PREDICTION_MODE mode,PREDICTION_MODE best_intra_mode)601 static int conditional_skipintra(PREDICTION_MODE mode,
602 PREDICTION_MODE best_intra_mode) {
603 if (mode == D117_PRED &&
604 best_intra_mode != V_PRED &&
605 best_intra_mode != D135_PRED)
606 return 1;
607 if (mode == D63_PRED &&
608 best_intra_mode != V_PRED &&
609 best_intra_mode != D45_PRED)
610 return 1;
611 if (mode == D207_PRED &&
612 best_intra_mode != H_PRED &&
613 best_intra_mode != D45_PRED)
614 return 1;
615 if (mode == D153_PRED &&
616 best_intra_mode != H_PRED &&
617 best_intra_mode != D135_PRED)
618 return 1;
619 return 0;
620 }
621
rd_pick_intra4x4block(VP9_COMP * cpi,MACROBLOCK * x,int ib,PREDICTION_MODE * best_mode,const int * bmode_costs,ENTROPY_CONTEXT * a,ENTROPY_CONTEXT * l,int * bestrate,int * bestratey,int64_t * bestdistortion,BLOCK_SIZE bsize,int64_t rd_thresh)622 static int64_t rd_pick_intra4x4block(VP9_COMP *cpi, MACROBLOCK *x, int ib,
623 PREDICTION_MODE *best_mode,
624 const int *bmode_costs,
625 ENTROPY_CONTEXT *a, ENTROPY_CONTEXT *l,
626 int *bestrate, int *bestratey,
627 int64_t *bestdistortion,
628 BLOCK_SIZE bsize, int64_t rd_thresh) {
629 PREDICTION_MODE mode;
630 MACROBLOCKD *const xd = &x->e_mbd;
631 int64_t best_rd = rd_thresh;
632
633 struct macroblock_plane *p = &x->plane[0];
634 struct macroblockd_plane *pd = &xd->plane[0];
635 const int src_stride = p->src.stride;
636 const int dst_stride = pd->dst.stride;
637 const uint8_t *src_init = &p->src.buf[raster_block_offset(BLOCK_8X8, ib,
638 src_stride)];
639 uint8_t *dst_init = &pd->dst.buf[raster_block_offset(BLOCK_8X8, ib,
640 dst_stride)];
641 ENTROPY_CONTEXT ta[2], tempa[2];
642 ENTROPY_CONTEXT tl[2], templ[2];
643
644 const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[bsize];
645 const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[bsize];
646 int idx, idy;
647 uint8_t best_dst[8 * 8];
648
649 assert(ib < 4);
650
651 vpx_memcpy(ta, a, sizeof(ta));
652 vpx_memcpy(tl, l, sizeof(tl));
653 xd->mi[0]->mbmi.tx_size = TX_4X4;
654
655 for (mode = DC_PRED; mode <= TM_PRED; ++mode) {
656 int64_t this_rd;
657 int ratey = 0;
658 int64_t distortion = 0;
659 int rate = bmode_costs[mode];
660
661 if (!(cpi->sf.intra_y_mode_mask[TX_4X4] & (1 << mode)))
662 continue;
663
664 // Only do the oblique modes if the best so far is
665 // one of the neighboring directional modes
666 if (cpi->sf.mode_search_skip_flags & FLAG_SKIP_INTRA_DIRMISMATCH) {
667 if (conditional_skipintra(mode, *best_mode))
668 continue;
669 }
670
671 vpx_memcpy(tempa, ta, sizeof(ta));
672 vpx_memcpy(templ, tl, sizeof(tl));
673
674 for (idy = 0; idy < num_4x4_blocks_high; ++idy) {
675 for (idx = 0; idx < num_4x4_blocks_wide; ++idx) {
676 const int block = ib + idy * 2 + idx;
677 const uint8_t *const src = &src_init[idx * 4 + idy * 4 * src_stride];
678 uint8_t *const dst = &dst_init[idx * 4 + idy * 4 * dst_stride];
679 int16_t *const src_diff = raster_block_offset_int16(BLOCK_8X8, block,
680 p->src_diff);
681 int16_t *const coeff = BLOCK_OFFSET(x->plane[0].coeff, block);
682 xd->mi[0]->bmi[block].as_mode = mode;
683 vp9_predict_intra_block(xd, block, 1,
684 TX_4X4, mode,
685 x->skip_encode ? src : dst,
686 x->skip_encode ? src_stride : dst_stride,
687 dst, dst_stride, idx, idy, 0);
688 vp9_subtract_block(4, 4, src_diff, 8, src, src_stride, dst, dst_stride);
689
690 if (xd->lossless) {
691 const scan_order *so = &vp9_default_scan_orders[TX_4X4];
692 vp9_fwht4x4(src_diff, coeff, 8);
693 vp9_regular_quantize_b_4x4(x, 0, block, so->scan, so->iscan);
694 ratey += cost_coeffs(x, 0, block, tempa + idx, templ + idy, TX_4X4,
695 so->scan, so->neighbors,
696 cpi->sf.use_fast_coef_costing);
697 if (RDCOST(x->rdmult, x->rddiv, ratey, distortion) >= best_rd)
698 goto next;
699 vp9_iwht4x4_add(BLOCK_OFFSET(pd->dqcoeff, block), dst, dst_stride,
700 p->eobs[block]);
701 } else {
702 int64_t unused;
703 const TX_TYPE tx_type = get_tx_type_4x4(PLANE_TYPE_Y, xd, block);
704 const scan_order *so = &vp9_scan_orders[TX_4X4][tx_type];
705 vp9_fht4x4(src_diff, coeff, 8, tx_type);
706 vp9_regular_quantize_b_4x4(x, 0, block, so->scan, so->iscan);
707 ratey += cost_coeffs(x, 0, block, tempa + idx, templ + idy, TX_4X4,
708 so->scan, so->neighbors,
709 cpi->sf.use_fast_coef_costing);
710 distortion += vp9_block_error(coeff, BLOCK_OFFSET(pd->dqcoeff, block),
711 16, &unused) >> 2;
712 if (RDCOST(x->rdmult, x->rddiv, ratey, distortion) >= best_rd)
713 goto next;
714 vp9_iht4x4_add(tx_type, BLOCK_OFFSET(pd->dqcoeff, block),
715 dst, dst_stride, p->eobs[block]);
716 }
717 }
718 }
719
720 rate += ratey;
721 this_rd = RDCOST(x->rdmult, x->rddiv, rate, distortion);
722
723 if (this_rd < best_rd) {
724 *bestrate = rate;
725 *bestratey = ratey;
726 *bestdistortion = distortion;
727 best_rd = this_rd;
728 *best_mode = mode;
729 vpx_memcpy(a, tempa, sizeof(tempa));
730 vpx_memcpy(l, templ, sizeof(templ));
731 for (idy = 0; idy < num_4x4_blocks_high * 4; ++idy)
732 vpx_memcpy(best_dst + idy * 8, dst_init + idy * dst_stride,
733 num_4x4_blocks_wide * 4);
734 }
735 next:
736 {}
737 }
738
739 if (best_rd >= rd_thresh || x->skip_encode)
740 return best_rd;
741
742 for (idy = 0; idy < num_4x4_blocks_high * 4; ++idy)
743 vpx_memcpy(dst_init + idy * dst_stride, best_dst + idy * 8,
744 num_4x4_blocks_wide * 4);
745
746 return best_rd;
747 }
748
rd_pick_intra_sub_8x8_y_mode(VP9_COMP * cpi,MACROBLOCK * mb,int * rate,int * rate_y,int64_t * distortion,int64_t best_rd)749 static int64_t rd_pick_intra_sub_8x8_y_mode(VP9_COMP *cpi, MACROBLOCK *mb,
750 int *rate, int *rate_y,
751 int64_t *distortion,
752 int64_t best_rd) {
753 int i, j;
754 const MACROBLOCKD *const xd = &mb->e_mbd;
755 MODE_INFO *const mic = xd->mi[0];
756 const MODE_INFO *above_mi = xd->mi[-xd->mi_stride];
757 const MODE_INFO *left_mi = xd->left_available ? xd->mi[-1] : NULL;
758 const BLOCK_SIZE bsize = xd->mi[0]->mbmi.sb_type;
759 const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[bsize];
760 const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[bsize];
761 int idx, idy;
762 int cost = 0;
763 int64_t total_distortion = 0;
764 int tot_rate_y = 0;
765 int64_t total_rd = 0;
766 ENTROPY_CONTEXT t_above[4], t_left[4];
767 const int *bmode_costs = cpi->mbmode_cost;
768
769 vpx_memcpy(t_above, xd->plane[0].above_context, sizeof(t_above));
770 vpx_memcpy(t_left, xd->plane[0].left_context, sizeof(t_left));
771
772 // Pick modes for each sub-block (of size 4x4, 4x8, or 8x4) in an 8x8 block.
773 for (idy = 0; idy < 2; idy += num_4x4_blocks_high) {
774 for (idx = 0; idx < 2; idx += num_4x4_blocks_wide) {
775 PREDICTION_MODE best_mode = DC_PRED;
776 int r = INT_MAX, ry = INT_MAX;
777 int64_t d = INT64_MAX, this_rd = INT64_MAX;
778 i = idy * 2 + idx;
779 if (cpi->common.frame_type == KEY_FRAME) {
780 const PREDICTION_MODE A = vp9_above_block_mode(mic, above_mi, i);
781 const PREDICTION_MODE L = vp9_left_block_mode(mic, left_mi, i);
782
783 bmode_costs = cpi->y_mode_costs[A][L];
784 }
785
786 this_rd = rd_pick_intra4x4block(cpi, mb, i, &best_mode, bmode_costs,
787 t_above + idx, t_left + idy, &r, &ry, &d,
788 bsize, best_rd - total_rd);
789 if (this_rd >= best_rd - total_rd)
790 return INT64_MAX;
791
792 total_rd += this_rd;
793 cost += r;
794 total_distortion += d;
795 tot_rate_y += ry;
796
797 mic->bmi[i].as_mode = best_mode;
798 for (j = 1; j < num_4x4_blocks_high; ++j)
799 mic->bmi[i + j * 2].as_mode = best_mode;
800 for (j = 1; j < num_4x4_blocks_wide; ++j)
801 mic->bmi[i + j].as_mode = best_mode;
802
803 if (total_rd >= best_rd)
804 return INT64_MAX;
805 }
806 }
807
808 *rate = cost;
809 *rate_y = tot_rate_y;
810 *distortion = total_distortion;
811 mic->mbmi.mode = mic->bmi[3].as_mode;
812
813 return RDCOST(mb->rdmult, mb->rddiv, cost, total_distortion);
814 }
815
rd_pick_intra_sby_mode(VP9_COMP * cpi,MACROBLOCK * x,int * rate,int * rate_tokenonly,int64_t * distortion,int * skippable,BLOCK_SIZE bsize,int64_t tx_cache[TX_MODES],int64_t best_rd)816 static int64_t rd_pick_intra_sby_mode(VP9_COMP *cpi, MACROBLOCK *x,
817 int *rate, int *rate_tokenonly,
818 int64_t *distortion, int *skippable,
819 BLOCK_SIZE bsize,
820 int64_t tx_cache[TX_MODES],
821 int64_t best_rd) {
822 PREDICTION_MODE mode;
823 PREDICTION_MODE mode_selected = DC_PRED;
824 MACROBLOCKD *const xd = &x->e_mbd;
825 MODE_INFO *const mic = xd->mi[0];
826 int this_rate, this_rate_tokenonly, s;
827 int64_t this_distortion, this_rd;
828 TX_SIZE best_tx = TX_4X4;
829 int i;
830 int *bmode_costs = cpi->mbmode_cost;
831
832 if (cpi->sf.tx_size_search_method == USE_FULL_RD)
833 for (i = 0; i < TX_MODES; i++)
834 tx_cache[i] = INT64_MAX;
835
836 /* Y Search for intra prediction mode */
837 for (mode = DC_PRED; mode <= TM_PRED; mode++) {
838 int64_t local_tx_cache[TX_MODES];
839 MODE_INFO *above_mi = xd->mi[-xd->mi_stride];
840 MODE_INFO *left_mi = xd->left_available ? xd->mi[-1] : NULL;
841
842 if (cpi->common.frame_type == KEY_FRAME) {
843 const PREDICTION_MODE A = vp9_above_block_mode(mic, above_mi, 0);
844 const PREDICTION_MODE L = vp9_left_block_mode(mic, left_mi, 0);
845
846 bmode_costs = cpi->y_mode_costs[A][L];
847 }
848 mic->mbmi.mode = mode;
849
850 intra_super_block_yrd(cpi, x, &this_rate_tokenonly, &this_distortion,
851 &s, bsize, local_tx_cache, best_rd);
852
853 if (this_rate_tokenonly == INT_MAX)
854 continue;
855
856 this_rate = this_rate_tokenonly + bmode_costs[mode];
857 this_rd = RDCOST(x->rdmult, x->rddiv, this_rate, this_distortion);
858
859 if (this_rd < best_rd) {
860 mode_selected = mode;
861 best_rd = this_rd;
862 best_tx = mic->mbmi.tx_size;
863 *rate = this_rate;
864 *rate_tokenonly = this_rate_tokenonly;
865 *distortion = this_distortion;
866 *skippable = s;
867 }
868
869 if (cpi->sf.tx_size_search_method == USE_FULL_RD && this_rd < INT64_MAX) {
870 for (i = 0; i < TX_MODES && local_tx_cache[i] < INT64_MAX; i++) {
871 const int64_t adj_rd = this_rd + local_tx_cache[i] -
872 local_tx_cache[cpi->common.tx_mode];
873 if (adj_rd < tx_cache[i]) {
874 tx_cache[i] = adj_rd;
875 }
876 }
877 }
878 }
879
880 mic->mbmi.mode = mode_selected;
881 mic->mbmi.tx_size = best_tx;
882
883 return best_rd;
884 }
885
super_block_uvrd(const VP9_COMP * cpi,MACROBLOCK * x,int * rate,int64_t * distortion,int * skippable,int64_t * sse,BLOCK_SIZE bsize,int64_t ref_best_rd)886 static void super_block_uvrd(const VP9_COMP *cpi, MACROBLOCK *x,
887 int *rate, int64_t *distortion, int *skippable,
888 int64_t *sse, BLOCK_SIZE bsize,
889 int64_t ref_best_rd) {
890 MACROBLOCKD *const xd = &x->e_mbd;
891 MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
892 const TX_SIZE uv_tx_size = get_uv_tx_size(mbmi, &xd->plane[1]);
893 int plane;
894 int pnrate = 0, pnskip = 1;
895 int64_t pndist = 0, pnsse = 0;
896
897 if (ref_best_rd < 0)
898 goto term;
899
900 if (is_inter_block(mbmi)) {
901 int plane;
902 for (plane = 1; plane < MAX_MB_PLANE; ++plane)
903 vp9_subtract_plane(x, bsize, plane);
904 }
905
906 *rate = 0;
907 *distortion = 0;
908 *sse = 0;
909 *skippable = 1;
910
911 for (plane = 1; plane < MAX_MB_PLANE; ++plane) {
912 txfm_rd_in_plane(x, &pnrate, &pndist, &pnskip, &pnsse,
913 ref_best_rd, plane, bsize, uv_tx_size,
914 cpi->sf.use_fast_coef_costing);
915 if (pnrate == INT_MAX)
916 goto term;
917 *rate += pnrate;
918 *distortion += pndist;
919 *sse += pnsse;
920 *skippable &= pnskip;
921 }
922 return;
923
924 term:
925 *rate = INT_MAX;
926 *distortion = INT64_MAX;
927 *sse = INT64_MAX;
928 *skippable = 0;
929 return;
930 }
931
rd_pick_intra_sbuv_mode(VP9_COMP * cpi,MACROBLOCK * x,PICK_MODE_CONTEXT * ctx,int * rate,int * rate_tokenonly,int64_t * distortion,int * skippable,BLOCK_SIZE bsize,TX_SIZE max_tx_size)932 static int64_t rd_pick_intra_sbuv_mode(VP9_COMP *cpi, MACROBLOCK *x,
933 PICK_MODE_CONTEXT *ctx,
934 int *rate, int *rate_tokenonly,
935 int64_t *distortion, int *skippable,
936 BLOCK_SIZE bsize, TX_SIZE max_tx_size) {
937 MACROBLOCKD *xd = &x->e_mbd;
938 PREDICTION_MODE mode;
939 PREDICTION_MODE mode_selected = DC_PRED;
940 int64_t best_rd = INT64_MAX, this_rd;
941 int this_rate_tokenonly, this_rate, s;
942 int64_t this_distortion, this_sse;
943
944 for (mode = DC_PRED; mode <= TM_PRED; ++mode) {
945 if (!(cpi->sf.intra_uv_mode_mask[max_tx_size] & (1 << mode)))
946 continue;
947
948 xd->mi[0]->mbmi.uv_mode = mode;
949
950 super_block_uvrd(cpi, x, &this_rate_tokenonly,
951 &this_distortion, &s, &this_sse, bsize, best_rd);
952 if (this_rate_tokenonly == INT_MAX)
953 continue;
954 this_rate = this_rate_tokenonly +
955 cpi->intra_uv_mode_cost[cpi->common.frame_type][mode];
956 this_rd = RDCOST(x->rdmult, x->rddiv, this_rate, this_distortion);
957
958 if (this_rd < best_rd) {
959 mode_selected = mode;
960 best_rd = this_rd;
961 *rate = this_rate;
962 *rate_tokenonly = this_rate_tokenonly;
963 *distortion = this_distortion;
964 *skippable = s;
965 if (!x->select_tx_size)
966 swap_block_ptr(x, ctx, 2, 0, 1, MAX_MB_PLANE);
967 }
968 }
969
970 xd->mi[0]->mbmi.uv_mode = mode_selected;
971 return best_rd;
972 }
973
rd_sbuv_dcpred(const VP9_COMP * cpi,MACROBLOCK * x,int * rate,int * rate_tokenonly,int64_t * distortion,int * skippable,BLOCK_SIZE bsize)974 static int64_t rd_sbuv_dcpred(const VP9_COMP *cpi, MACROBLOCK *x,
975 int *rate, int *rate_tokenonly,
976 int64_t *distortion, int *skippable,
977 BLOCK_SIZE bsize) {
978 const VP9_COMMON *cm = &cpi->common;
979 int64_t unused;
980
981 x->e_mbd.mi[0]->mbmi.uv_mode = DC_PRED;
982 super_block_uvrd(cpi, x, rate_tokenonly, distortion,
983 skippable, &unused, bsize, INT64_MAX);
984 *rate = *rate_tokenonly + cpi->intra_uv_mode_cost[cm->frame_type][DC_PRED];
985 return RDCOST(x->rdmult, x->rddiv, *rate, *distortion);
986 }
987
choose_intra_uv_mode(VP9_COMP * cpi,PICK_MODE_CONTEXT * ctx,BLOCK_SIZE bsize,TX_SIZE max_tx_size,int * rate_uv,int * rate_uv_tokenonly,int64_t * dist_uv,int * skip_uv,PREDICTION_MODE * mode_uv)988 static void choose_intra_uv_mode(VP9_COMP *cpi, PICK_MODE_CONTEXT *ctx,
989 BLOCK_SIZE bsize, TX_SIZE max_tx_size,
990 int *rate_uv, int *rate_uv_tokenonly,
991 int64_t *dist_uv, int *skip_uv,
992 PREDICTION_MODE *mode_uv) {
993 MACROBLOCK *const x = &cpi->mb;
994
995 // Use an estimated rd for uv_intra based on DC_PRED if the
996 // appropriate speed flag is set.
997 if (cpi->sf.use_uv_intra_rd_estimate) {
998 rd_sbuv_dcpred(cpi, x, rate_uv, rate_uv_tokenonly, dist_uv,
999 skip_uv, bsize < BLOCK_8X8 ? BLOCK_8X8 : bsize);
1000 // Else do a proper rd search for each possible transform size that may
1001 // be considered in the main rd loop.
1002 } else {
1003 rd_pick_intra_sbuv_mode(cpi, x, ctx,
1004 rate_uv, rate_uv_tokenonly, dist_uv, skip_uv,
1005 bsize < BLOCK_8X8 ? BLOCK_8X8 : bsize, max_tx_size);
1006 }
1007 *mode_uv = x->e_mbd.mi[0]->mbmi.uv_mode;
1008 }
1009
cost_mv_ref(const VP9_COMP * cpi,PREDICTION_MODE mode,int mode_context)1010 static int cost_mv_ref(const VP9_COMP *cpi, PREDICTION_MODE mode,
1011 int mode_context) {
1012 assert(is_inter_mode(mode));
1013 return cpi->inter_mode_cost[mode_context][INTER_OFFSET(mode)];
1014 }
1015
1016 static void joint_motion_search(VP9_COMP *cpi, MACROBLOCK *x,
1017 BLOCK_SIZE bsize,
1018 int_mv *frame_mv,
1019 int mi_row, int mi_col,
1020 int_mv single_newmv[MAX_REF_FRAMES],
1021 int *rate_mv);
1022
set_and_cost_bmi_mvs(VP9_COMP * cpi,MACROBLOCKD * xd,int i,PREDICTION_MODE mode,int_mv this_mv[2],int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES],int_mv seg_mvs[MAX_REF_FRAMES],int_mv * best_ref_mv[2],const int * mvjcost,int * mvcost[2])1023 static int set_and_cost_bmi_mvs(VP9_COMP *cpi, MACROBLOCKD *xd, int i,
1024 PREDICTION_MODE mode, int_mv this_mv[2],
1025 int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES],
1026 int_mv seg_mvs[MAX_REF_FRAMES],
1027 int_mv *best_ref_mv[2], const int *mvjcost,
1028 int *mvcost[2]) {
1029 MODE_INFO *const mic = xd->mi[0];
1030 const MB_MODE_INFO *const mbmi = &mic->mbmi;
1031 int thismvcost = 0;
1032 int idx, idy;
1033 const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[mbmi->sb_type];
1034 const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[mbmi->sb_type];
1035 const int is_compound = has_second_ref(mbmi);
1036
1037 switch (mode) {
1038 case NEWMV:
1039 this_mv[0].as_int = seg_mvs[mbmi->ref_frame[0]].as_int;
1040 thismvcost += vp9_mv_bit_cost(&this_mv[0].as_mv, &best_ref_mv[0]->as_mv,
1041 mvjcost, mvcost, MV_COST_WEIGHT_SUB);
1042 if (is_compound) {
1043 this_mv[1].as_int = seg_mvs[mbmi->ref_frame[1]].as_int;
1044 thismvcost += vp9_mv_bit_cost(&this_mv[1].as_mv, &best_ref_mv[1]->as_mv,
1045 mvjcost, mvcost, MV_COST_WEIGHT_SUB);
1046 }
1047 break;
1048 case NEARMV:
1049 case NEARESTMV:
1050 this_mv[0].as_int = frame_mv[mode][mbmi->ref_frame[0]].as_int;
1051 if (is_compound)
1052 this_mv[1].as_int = frame_mv[mode][mbmi->ref_frame[1]].as_int;
1053 break;
1054 case ZEROMV:
1055 this_mv[0].as_int = 0;
1056 if (is_compound)
1057 this_mv[1].as_int = 0;
1058 break;
1059 default:
1060 break;
1061 }
1062
1063 mic->bmi[i].as_mv[0].as_int = this_mv[0].as_int;
1064 if (is_compound)
1065 mic->bmi[i].as_mv[1].as_int = this_mv[1].as_int;
1066
1067 mic->bmi[i].as_mode = mode;
1068
1069 for (idy = 0; idy < num_4x4_blocks_high; ++idy)
1070 for (idx = 0; idx < num_4x4_blocks_wide; ++idx)
1071 vpx_memcpy(&mic->bmi[i + idy * 2 + idx],
1072 &mic->bmi[i], sizeof(mic->bmi[i]));
1073
1074 return cost_mv_ref(cpi, mode, mbmi->mode_context[mbmi->ref_frame[0]]) +
1075 thismvcost;
1076 }
1077
encode_inter_mb_segment(VP9_COMP * cpi,MACROBLOCK * x,int64_t best_yrd,int i,int * labelyrate,int64_t * distortion,int64_t * sse,ENTROPY_CONTEXT * ta,ENTROPY_CONTEXT * tl,int mi_row,int mi_col)1078 static int64_t encode_inter_mb_segment(VP9_COMP *cpi,
1079 MACROBLOCK *x,
1080 int64_t best_yrd,
1081 int i,
1082 int *labelyrate,
1083 int64_t *distortion, int64_t *sse,
1084 ENTROPY_CONTEXT *ta,
1085 ENTROPY_CONTEXT *tl,
1086 int mi_row, int mi_col) {
1087 int k;
1088 MACROBLOCKD *xd = &x->e_mbd;
1089 struct macroblockd_plane *const pd = &xd->plane[0];
1090 struct macroblock_plane *const p = &x->plane[0];
1091 MODE_INFO *const mi = xd->mi[0];
1092 const BLOCK_SIZE plane_bsize = get_plane_block_size(mi->mbmi.sb_type, pd);
1093 const int width = 4 * num_4x4_blocks_wide_lookup[plane_bsize];
1094 const int height = 4 * num_4x4_blocks_high_lookup[plane_bsize];
1095 int idx, idy;
1096
1097 const uint8_t *const src = &p->src.buf[raster_block_offset(BLOCK_8X8, i,
1098 p->src.stride)];
1099 uint8_t *const dst = &pd->dst.buf[raster_block_offset(BLOCK_8X8, i,
1100 pd->dst.stride)];
1101 int64_t thisdistortion = 0, thissse = 0;
1102 int thisrate = 0, ref;
1103 const scan_order *so = &vp9_default_scan_orders[TX_4X4];
1104 const int is_compound = has_second_ref(&mi->mbmi);
1105 const InterpKernel *kernel = vp9_get_interp_kernel(mi->mbmi.interp_filter);
1106
1107 for (ref = 0; ref < 1 + is_compound; ++ref) {
1108 const uint8_t *pre = &pd->pre[ref].buf[raster_block_offset(BLOCK_8X8, i,
1109 pd->pre[ref].stride)];
1110 vp9_build_inter_predictor(pre, pd->pre[ref].stride,
1111 dst, pd->dst.stride,
1112 &mi->bmi[i].as_mv[ref].as_mv,
1113 &xd->block_refs[ref]->sf, width, height, ref,
1114 kernel, MV_PRECISION_Q3,
1115 mi_col * MI_SIZE + 4 * (i % 2),
1116 mi_row * MI_SIZE + 4 * (i / 2));
1117 }
1118
1119 vp9_subtract_block(height, width,
1120 raster_block_offset_int16(BLOCK_8X8, i, p->src_diff), 8,
1121 src, p->src.stride,
1122 dst, pd->dst.stride);
1123
1124 k = i;
1125 for (idy = 0; idy < height / 4; ++idy) {
1126 for (idx = 0; idx < width / 4; ++idx) {
1127 int64_t ssz, rd, rd1, rd2;
1128 int16_t* coeff;
1129
1130 k += (idy * 2 + idx);
1131 coeff = BLOCK_OFFSET(p->coeff, k);
1132 x->fwd_txm4x4(raster_block_offset_int16(BLOCK_8X8, k, p->src_diff),
1133 coeff, 8);
1134 vp9_regular_quantize_b_4x4(x, 0, k, so->scan, so->iscan);
1135 thisdistortion += vp9_block_error(coeff, BLOCK_OFFSET(pd->dqcoeff, k),
1136 16, &ssz);
1137 thissse += ssz;
1138 thisrate += cost_coeffs(x, 0, k, ta + (k & 1), tl + (k >> 1), TX_4X4,
1139 so->scan, so->neighbors,
1140 cpi->sf.use_fast_coef_costing);
1141 rd1 = RDCOST(x->rdmult, x->rddiv, thisrate, thisdistortion >> 2);
1142 rd2 = RDCOST(x->rdmult, x->rddiv, 0, thissse >> 2);
1143 rd = MIN(rd1, rd2);
1144 if (rd >= best_yrd)
1145 return INT64_MAX;
1146 }
1147 }
1148
1149 *distortion = thisdistortion >> 2;
1150 *labelyrate = thisrate;
1151 *sse = thissse >> 2;
1152
1153 return RDCOST(x->rdmult, x->rddiv, *labelyrate, *distortion);
1154 }
1155
1156 typedef struct {
1157 int eobs;
1158 int brate;
1159 int byrate;
1160 int64_t bdist;
1161 int64_t bsse;
1162 int64_t brdcost;
1163 int_mv mvs[2];
1164 ENTROPY_CONTEXT ta[2];
1165 ENTROPY_CONTEXT tl[2];
1166 } SEG_RDSTAT;
1167
1168 typedef struct {
1169 int_mv *ref_mv[2];
1170 int_mv mvp;
1171
1172 int64_t segment_rd;
1173 int r;
1174 int64_t d;
1175 int64_t sse;
1176 int segment_yrate;
1177 PREDICTION_MODE modes[4];
1178 SEG_RDSTAT rdstat[4][INTER_MODES];
1179 int mvthresh;
1180 } BEST_SEG_INFO;
1181
mv_check_bounds(const MACROBLOCK * x,const MV * mv)1182 static INLINE int mv_check_bounds(const MACROBLOCK *x, const MV *mv) {
1183 return (mv->row >> 3) < x->mv_row_min ||
1184 (mv->row >> 3) > x->mv_row_max ||
1185 (mv->col >> 3) < x->mv_col_min ||
1186 (mv->col >> 3) > x->mv_col_max;
1187 }
1188
mi_buf_shift(MACROBLOCK * x,int i)1189 static INLINE void mi_buf_shift(MACROBLOCK *x, int i) {
1190 MB_MODE_INFO *const mbmi = &x->e_mbd.mi[0]->mbmi;
1191 struct macroblock_plane *const p = &x->plane[0];
1192 struct macroblockd_plane *const pd = &x->e_mbd.plane[0];
1193
1194 p->src.buf = &p->src.buf[raster_block_offset(BLOCK_8X8, i, p->src.stride)];
1195 assert(((intptr_t)pd->pre[0].buf & 0x7) == 0);
1196 pd->pre[0].buf = &pd->pre[0].buf[raster_block_offset(BLOCK_8X8, i,
1197 pd->pre[0].stride)];
1198 if (has_second_ref(mbmi))
1199 pd->pre[1].buf = &pd->pre[1].buf[raster_block_offset(BLOCK_8X8, i,
1200 pd->pre[1].stride)];
1201 }
1202
mi_buf_restore(MACROBLOCK * x,struct buf_2d orig_src,struct buf_2d orig_pre[2])1203 static INLINE void mi_buf_restore(MACROBLOCK *x, struct buf_2d orig_src,
1204 struct buf_2d orig_pre[2]) {
1205 MB_MODE_INFO *mbmi = &x->e_mbd.mi[0]->mbmi;
1206 x->plane[0].src = orig_src;
1207 x->e_mbd.plane[0].pre[0] = orig_pre[0];
1208 if (has_second_ref(mbmi))
1209 x->e_mbd.plane[0].pre[1] = orig_pre[1];
1210 }
1211
mv_has_subpel(const MV * mv)1212 static INLINE int mv_has_subpel(const MV *mv) {
1213 return (mv->row & 0x0F) || (mv->col & 0x0F);
1214 }
1215
1216 // Check if NEARESTMV/NEARMV/ZEROMV is the cheapest way encode zero motion.
1217 // TODO(aconverse): Find out if this is still productive then clean up or remove
check_best_zero_mv(const VP9_COMP * cpi,const uint8_t mode_context[MAX_REF_FRAMES],int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES],int inter_mode_mask,int this_mode,const MV_REFERENCE_FRAME ref_frames[2])1218 static int check_best_zero_mv(
1219 const VP9_COMP *cpi, const uint8_t mode_context[MAX_REF_FRAMES],
1220 int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES],
1221 int inter_mode_mask, int this_mode,
1222 const MV_REFERENCE_FRAME ref_frames[2]) {
1223 if ((inter_mode_mask & (1 << ZEROMV)) &&
1224 (this_mode == NEARMV || this_mode == NEARESTMV || this_mode == ZEROMV) &&
1225 frame_mv[this_mode][ref_frames[0]].as_int == 0 &&
1226 (ref_frames[1] == NONE ||
1227 frame_mv[this_mode][ref_frames[1]].as_int == 0)) {
1228 int rfc = mode_context[ref_frames[0]];
1229 int c1 = cost_mv_ref(cpi, NEARMV, rfc);
1230 int c2 = cost_mv_ref(cpi, NEARESTMV, rfc);
1231 int c3 = cost_mv_ref(cpi, ZEROMV, rfc);
1232
1233 if (this_mode == NEARMV) {
1234 if (c1 > c3) return 0;
1235 } else if (this_mode == NEARESTMV) {
1236 if (c2 > c3) return 0;
1237 } else {
1238 assert(this_mode == ZEROMV);
1239 if (ref_frames[1] == NONE) {
1240 if ((c3 >= c2 && frame_mv[NEARESTMV][ref_frames[0]].as_int == 0) ||
1241 (c3 >= c1 && frame_mv[NEARMV][ref_frames[0]].as_int == 0))
1242 return 0;
1243 } else {
1244 if ((c3 >= c2 && frame_mv[NEARESTMV][ref_frames[0]].as_int == 0 &&
1245 frame_mv[NEARESTMV][ref_frames[1]].as_int == 0) ||
1246 (c3 >= c1 && frame_mv[NEARMV][ref_frames[0]].as_int == 0 &&
1247 frame_mv[NEARMV][ref_frames[1]].as_int == 0))
1248 return 0;
1249 }
1250 }
1251 }
1252 return 1;
1253 }
1254
rd_pick_best_sub8x8_mode(VP9_COMP * cpi,MACROBLOCK * x,const TileInfo * const tile,int_mv * best_ref_mv,int_mv * second_best_ref_mv,int64_t best_rd,int * returntotrate,int * returnyrate,int64_t * returndistortion,int * skippable,int64_t * psse,int mvthresh,int_mv seg_mvs[4][MAX_REF_FRAMES],BEST_SEG_INFO * bsi_buf,int filter_idx,int mi_row,int mi_col)1255 static int64_t rd_pick_best_sub8x8_mode(VP9_COMP *cpi, MACROBLOCK *x,
1256 const TileInfo * const tile,
1257 int_mv *best_ref_mv,
1258 int_mv *second_best_ref_mv,
1259 int64_t best_rd, int *returntotrate,
1260 int *returnyrate,
1261 int64_t *returndistortion,
1262 int *skippable, int64_t *psse,
1263 int mvthresh,
1264 int_mv seg_mvs[4][MAX_REF_FRAMES],
1265 BEST_SEG_INFO *bsi_buf, int filter_idx,
1266 int mi_row, int mi_col) {
1267 int i;
1268 BEST_SEG_INFO *bsi = bsi_buf + filter_idx;
1269 MACROBLOCKD *xd = &x->e_mbd;
1270 MODE_INFO *mi = xd->mi[0];
1271 MB_MODE_INFO *mbmi = &mi->mbmi;
1272 int mode_idx;
1273 int k, br = 0, idx, idy;
1274 int64_t bd = 0, block_sse = 0;
1275 PREDICTION_MODE this_mode;
1276 VP9_COMMON *cm = &cpi->common;
1277 struct macroblock_plane *const p = &x->plane[0];
1278 struct macroblockd_plane *const pd = &xd->plane[0];
1279 const int label_count = 4;
1280 int64_t this_segment_rd = 0;
1281 int label_mv_thresh;
1282 int segmentyrate = 0;
1283 const BLOCK_SIZE bsize = mbmi->sb_type;
1284 const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[bsize];
1285 const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[bsize];
1286 ENTROPY_CONTEXT t_above[2], t_left[2];
1287 int subpelmv = 1, have_ref = 0;
1288 const int has_second_rf = has_second_ref(mbmi);
1289 const int inter_mode_mask = cpi->sf.inter_mode_mask[bsize];
1290
1291 vp9_zero(*bsi);
1292
1293 bsi->segment_rd = best_rd;
1294 bsi->ref_mv[0] = best_ref_mv;
1295 bsi->ref_mv[1] = second_best_ref_mv;
1296 bsi->mvp.as_int = best_ref_mv->as_int;
1297 bsi->mvthresh = mvthresh;
1298
1299 for (i = 0; i < 4; i++)
1300 bsi->modes[i] = ZEROMV;
1301
1302 vpx_memcpy(t_above, pd->above_context, sizeof(t_above));
1303 vpx_memcpy(t_left, pd->left_context, sizeof(t_left));
1304
1305 // 64 makes this threshold really big effectively
1306 // making it so that we very rarely check mvs on
1307 // segments. setting this to 1 would make mv thresh
1308 // roughly equal to what it is for macroblocks
1309 label_mv_thresh = 1 * bsi->mvthresh / label_count;
1310
1311 // Segmentation method overheads
1312 for (idy = 0; idy < 2; idy += num_4x4_blocks_high) {
1313 for (idx = 0; idx < 2; idx += num_4x4_blocks_wide) {
1314 // TODO(jingning,rbultje): rewrite the rate-distortion optimization
1315 // loop for 4x4/4x8/8x4 block coding. to be replaced with new rd loop
1316 int_mv mode_mv[MB_MODE_COUNT][2];
1317 int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES];
1318 PREDICTION_MODE mode_selected = ZEROMV;
1319 int64_t best_rd = INT64_MAX;
1320 const int i = idy * 2 + idx;
1321 int ref;
1322
1323 for (ref = 0; ref < 1 + has_second_rf; ++ref) {
1324 const MV_REFERENCE_FRAME frame = mbmi->ref_frame[ref];
1325 frame_mv[ZEROMV][frame].as_int = 0;
1326 vp9_append_sub8x8_mvs_for_idx(cm, xd, tile, i, ref, mi_row, mi_col,
1327 &frame_mv[NEARESTMV][frame],
1328 &frame_mv[NEARMV][frame]);
1329 }
1330
1331 // search for the best motion vector on this segment
1332 for (this_mode = NEARESTMV; this_mode <= NEWMV; ++this_mode) {
1333 const struct buf_2d orig_src = x->plane[0].src;
1334 struct buf_2d orig_pre[2];
1335
1336 mode_idx = INTER_OFFSET(this_mode);
1337 bsi->rdstat[i][mode_idx].brdcost = INT64_MAX;
1338 if (!(inter_mode_mask & (1 << this_mode)))
1339 continue;
1340
1341 if (!check_best_zero_mv(cpi, mbmi->mode_context, frame_mv,
1342 inter_mode_mask,
1343 this_mode, mbmi->ref_frame))
1344 continue;
1345
1346 vpx_memcpy(orig_pre, pd->pre, sizeof(orig_pre));
1347 vpx_memcpy(bsi->rdstat[i][mode_idx].ta, t_above,
1348 sizeof(bsi->rdstat[i][mode_idx].ta));
1349 vpx_memcpy(bsi->rdstat[i][mode_idx].tl, t_left,
1350 sizeof(bsi->rdstat[i][mode_idx].tl));
1351
1352 // motion search for newmv (single predictor case only)
1353 if (!has_second_rf && this_mode == NEWMV &&
1354 seg_mvs[i][mbmi->ref_frame[0]].as_int == INVALID_MV) {
1355 MV *const new_mv = &mode_mv[NEWMV][0].as_mv;
1356 int step_param = 0;
1357 int thissme, bestsme = INT_MAX;
1358 int sadpb = x->sadperbit4;
1359 MV mvp_full;
1360 int max_mv;
1361
1362 /* Is the best so far sufficiently good that we cant justify doing
1363 * and new motion search. */
1364 if (best_rd < label_mv_thresh)
1365 break;
1366
1367 if (!is_best_mode(cpi->oxcf.mode)) {
1368 // use previous block's result as next block's MV predictor.
1369 if (i > 0) {
1370 bsi->mvp.as_int = mi->bmi[i - 1].as_mv[0].as_int;
1371 if (i == 2)
1372 bsi->mvp.as_int = mi->bmi[i - 2].as_mv[0].as_int;
1373 }
1374 }
1375 if (i == 0)
1376 max_mv = x->max_mv_context[mbmi->ref_frame[0]];
1377 else
1378 max_mv = MAX(abs(bsi->mvp.as_mv.row), abs(bsi->mvp.as_mv.col)) >> 3;
1379
1380 if (cpi->sf.mv.auto_mv_step_size && cm->show_frame) {
1381 // Take wtd average of the step_params based on the last frame's
1382 // max mv magnitude and the best ref mvs of the current block for
1383 // the given reference.
1384 step_param = (vp9_init_search_range(max_mv) +
1385 cpi->mv_step_param) / 2;
1386 } else {
1387 step_param = cpi->mv_step_param;
1388 }
1389
1390 mvp_full.row = bsi->mvp.as_mv.row >> 3;
1391 mvp_full.col = bsi->mvp.as_mv.col >> 3;
1392
1393 if (cpi->sf.adaptive_motion_search && cm->show_frame) {
1394 mvp_full.row = x->pred_mv[mbmi->ref_frame[0]].row >> 3;
1395 mvp_full.col = x->pred_mv[mbmi->ref_frame[0]].col >> 3;
1396 step_param = MAX(step_param, 8);
1397 }
1398
1399 // adjust src pointer for this block
1400 mi_buf_shift(x, i);
1401
1402 vp9_set_mv_search_range(x, &bsi->ref_mv[0]->as_mv);
1403
1404 bestsme = vp9_full_pixel_search(cpi, x, bsize, &mvp_full, step_param,
1405 sadpb, &bsi->ref_mv[0]->as_mv, new_mv,
1406 INT_MAX, 1);
1407
1408 // Should we do a full search (best quality only)
1409 if (is_best_mode(cpi->oxcf.mode)) {
1410 int_mv *const best_mv = &mi->bmi[i].as_mv[0];
1411 /* Check if mvp_full is within the range. */
1412 clamp_mv(&mvp_full, x->mv_col_min, x->mv_col_max,
1413 x->mv_row_min, x->mv_row_max);
1414 thissme = cpi->full_search_sad(x, &mvp_full,
1415 sadpb, 16, &cpi->fn_ptr[bsize],
1416 &bsi->ref_mv[0]->as_mv,
1417 &best_mv->as_mv);
1418 if (thissme < bestsme) {
1419 bestsme = thissme;
1420 *new_mv = best_mv->as_mv;
1421 } else {
1422 // The full search result is actually worse so re-instate the
1423 // previous best vector
1424 best_mv->as_mv = *new_mv;
1425 }
1426 }
1427
1428 if (bestsme < INT_MAX) {
1429 int distortion;
1430 cpi->find_fractional_mv_step(x,
1431 new_mv,
1432 &bsi->ref_mv[0]->as_mv,
1433 cm->allow_high_precision_mv,
1434 x->errorperbit, &cpi->fn_ptr[bsize],
1435 cpi->sf.mv.subpel_force_stop,
1436 cpi->sf.mv.subpel_iters_per_step,
1437 x->nmvjointcost, x->mvcost,
1438 &distortion,
1439 &x->pred_sse[mbmi->ref_frame[0]],
1440 NULL, 0, 0);
1441
1442 // save motion search result for use in compound prediction
1443 seg_mvs[i][mbmi->ref_frame[0]].as_mv = *new_mv;
1444 }
1445
1446 if (cpi->sf.adaptive_motion_search)
1447 x->pred_mv[mbmi->ref_frame[0]] = *new_mv;
1448
1449 // restore src pointers
1450 mi_buf_restore(x, orig_src, orig_pre);
1451 }
1452
1453 if (has_second_rf) {
1454 if (seg_mvs[i][mbmi->ref_frame[1]].as_int == INVALID_MV ||
1455 seg_mvs[i][mbmi->ref_frame[0]].as_int == INVALID_MV)
1456 continue;
1457 }
1458
1459 if (has_second_rf && this_mode == NEWMV &&
1460 mbmi->interp_filter == EIGHTTAP) {
1461 // adjust src pointers
1462 mi_buf_shift(x, i);
1463 if (cpi->sf.comp_inter_joint_search_thresh <= bsize) {
1464 int rate_mv;
1465 joint_motion_search(cpi, x, bsize, frame_mv[this_mode],
1466 mi_row, mi_col, seg_mvs[i],
1467 &rate_mv);
1468 seg_mvs[i][mbmi->ref_frame[0]].as_int =
1469 frame_mv[this_mode][mbmi->ref_frame[0]].as_int;
1470 seg_mvs[i][mbmi->ref_frame[1]].as_int =
1471 frame_mv[this_mode][mbmi->ref_frame[1]].as_int;
1472 }
1473 // restore src pointers
1474 mi_buf_restore(x, orig_src, orig_pre);
1475 }
1476
1477 bsi->rdstat[i][mode_idx].brate =
1478 set_and_cost_bmi_mvs(cpi, xd, i, this_mode, mode_mv[this_mode],
1479 frame_mv, seg_mvs[i], bsi->ref_mv,
1480 x->nmvjointcost, x->mvcost);
1481
1482 for (ref = 0; ref < 1 + has_second_rf; ++ref) {
1483 bsi->rdstat[i][mode_idx].mvs[ref].as_int =
1484 mode_mv[this_mode][ref].as_int;
1485 if (num_4x4_blocks_wide > 1)
1486 bsi->rdstat[i + 1][mode_idx].mvs[ref].as_int =
1487 mode_mv[this_mode][ref].as_int;
1488 if (num_4x4_blocks_high > 1)
1489 bsi->rdstat[i + 2][mode_idx].mvs[ref].as_int =
1490 mode_mv[this_mode][ref].as_int;
1491 }
1492
1493 // Trap vectors that reach beyond the UMV borders
1494 if (mv_check_bounds(x, &mode_mv[this_mode][0].as_mv) ||
1495 (has_second_rf &&
1496 mv_check_bounds(x, &mode_mv[this_mode][1].as_mv)))
1497 continue;
1498
1499 if (filter_idx > 0) {
1500 BEST_SEG_INFO *ref_bsi = bsi_buf;
1501 subpelmv = 0;
1502 have_ref = 1;
1503
1504 for (ref = 0; ref < 1 + has_second_rf; ++ref) {
1505 subpelmv |= mv_has_subpel(&mode_mv[this_mode][ref].as_mv);
1506 have_ref &= mode_mv[this_mode][ref].as_int ==
1507 ref_bsi->rdstat[i][mode_idx].mvs[ref].as_int;
1508 }
1509
1510 if (filter_idx > 1 && !subpelmv && !have_ref) {
1511 ref_bsi = bsi_buf + 1;
1512 have_ref = 1;
1513 for (ref = 0; ref < 1 + has_second_rf; ++ref)
1514 have_ref &= mode_mv[this_mode][ref].as_int ==
1515 ref_bsi->rdstat[i][mode_idx].mvs[ref].as_int;
1516 }
1517
1518 if (!subpelmv && have_ref &&
1519 ref_bsi->rdstat[i][mode_idx].brdcost < INT64_MAX) {
1520 vpx_memcpy(&bsi->rdstat[i][mode_idx], &ref_bsi->rdstat[i][mode_idx],
1521 sizeof(SEG_RDSTAT));
1522 if (num_4x4_blocks_wide > 1)
1523 bsi->rdstat[i + 1][mode_idx].eobs =
1524 ref_bsi->rdstat[i + 1][mode_idx].eobs;
1525 if (num_4x4_blocks_high > 1)
1526 bsi->rdstat[i + 2][mode_idx].eobs =
1527 ref_bsi->rdstat[i + 2][mode_idx].eobs;
1528
1529 if (bsi->rdstat[i][mode_idx].brdcost < best_rd) {
1530 mode_selected = this_mode;
1531 best_rd = bsi->rdstat[i][mode_idx].brdcost;
1532 }
1533 continue;
1534 }
1535 }
1536
1537 bsi->rdstat[i][mode_idx].brdcost =
1538 encode_inter_mb_segment(cpi, x,
1539 bsi->segment_rd - this_segment_rd, i,
1540 &bsi->rdstat[i][mode_idx].byrate,
1541 &bsi->rdstat[i][mode_idx].bdist,
1542 &bsi->rdstat[i][mode_idx].bsse,
1543 bsi->rdstat[i][mode_idx].ta,
1544 bsi->rdstat[i][mode_idx].tl,
1545 mi_row, mi_col);
1546 if (bsi->rdstat[i][mode_idx].brdcost < INT64_MAX) {
1547 bsi->rdstat[i][mode_idx].brdcost += RDCOST(x->rdmult, x->rddiv,
1548 bsi->rdstat[i][mode_idx].brate, 0);
1549 bsi->rdstat[i][mode_idx].brate += bsi->rdstat[i][mode_idx].byrate;
1550 bsi->rdstat[i][mode_idx].eobs = p->eobs[i];
1551 if (num_4x4_blocks_wide > 1)
1552 bsi->rdstat[i + 1][mode_idx].eobs = p->eobs[i + 1];
1553 if (num_4x4_blocks_high > 1)
1554 bsi->rdstat[i + 2][mode_idx].eobs = p->eobs[i + 2];
1555 }
1556
1557 if (bsi->rdstat[i][mode_idx].brdcost < best_rd) {
1558 mode_selected = this_mode;
1559 best_rd = bsi->rdstat[i][mode_idx].brdcost;
1560 }
1561 } /*for each 4x4 mode*/
1562
1563 if (best_rd == INT64_MAX) {
1564 int iy, midx;
1565 for (iy = i + 1; iy < 4; ++iy)
1566 for (midx = 0; midx < INTER_MODES; ++midx)
1567 bsi->rdstat[iy][midx].brdcost = INT64_MAX;
1568 bsi->segment_rd = INT64_MAX;
1569 return INT64_MAX;;
1570 }
1571
1572 mode_idx = INTER_OFFSET(mode_selected);
1573 vpx_memcpy(t_above, bsi->rdstat[i][mode_idx].ta, sizeof(t_above));
1574 vpx_memcpy(t_left, bsi->rdstat[i][mode_idx].tl, sizeof(t_left));
1575
1576 set_and_cost_bmi_mvs(cpi, xd, i, mode_selected, mode_mv[mode_selected],
1577 frame_mv, seg_mvs[i], bsi->ref_mv, x->nmvjointcost,
1578 x->mvcost);
1579
1580 br += bsi->rdstat[i][mode_idx].brate;
1581 bd += bsi->rdstat[i][mode_idx].bdist;
1582 block_sse += bsi->rdstat[i][mode_idx].bsse;
1583 segmentyrate += bsi->rdstat[i][mode_idx].byrate;
1584 this_segment_rd += bsi->rdstat[i][mode_idx].brdcost;
1585
1586 if (this_segment_rd > bsi->segment_rd) {
1587 int iy, midx;
1588 for (iy = i + 1; iy < 4; ++iy)
1589 for (midx = 0; midx < INTER_MODES; ++midx)
1590 bsi->rdstat[iy][midx].brdcost = INT64_MAX;
1591 bsi->segment_rd = INT64_MAX;
1592 return INT64_MAX;;
1593 }
1594 }
1595 } /* for each label */
1596
1597 bsi->r = br;
1598 bsi->d = bd;
1599 bsi->segment_yrate = segmentyrate;
1600 bsi->segment_rd = this_segment_rd;
1601 bsi->sse = block_sse;
1602
1603 // update the coding decisions
1604 for (k = 0; k < 4; ++k)
1605 bsi->modes[k] = mi->bmi[k].as_mode;
1606
1607 if (bsi->segment_rd > best_rd)
1608 return INT64_MAX;
1609 /* set it to the best */
1610 for (i = 0; i < 4; i++) {
1611 mode_idx = INTER_OFFSET(bsi->modes[i]);
1612 mi->bmi[i].as_mv[0].as_int = bsi->rdstat[i][mode_idx].mvs[0].as_int;
1613 if (has_second_ref(mbmi))
1614 mi->bmi[i].as_mv[1].as_int = bsi->rdstat[i][mode_idx].mvs[1].as_int;
1615 x->plane[0].eobs[i] = bsi->rdstat[i][mode_idx].eobs;
1616 mi->bmi[i].as_mode = bsi->modes[i];
1617 }
1618
1619 /*
1620 * used to set mbmi->mv.as_int
1621 */
1622 *returntotrate = bsi->r;
1623 *returndistortion = bsi->d;
1624 *returnyrate = bsi->segment_yrate;
1625 *skippable = vp9_is_skippable_in_plane(x, BLOCK_8X8, 0);
1626 *psse = bsi->sse;
1627 mbmi->mode = bsi->modes[3];
1628
1629 return bsi->segment_rd;
1630 }
1631
estimate_ref_frame_costs(const VP9_COMMON * cm,const MACROBLOCKD * xd,int segment_id,unsigned int * ref_costs_single,unsigned int * ref_costs_comp,vp9_prob * comp_mode_p)1632 static void estimate_ref_frame_costs(const VP9_COMMON *cm,
1633 const MACROBLOCKD *xd,
1634 int segment_id,
1635 unsigned int *ref_costs_single,
1636 unsigned int *ref_costs_comp,
1637 vp9_prob *comp_mode_p) {
1638 int seg_ref_active = vp9_segfeature_active(&cm->seg, segment_id,
1639 SEG_LVL_REF_FRAME);
1640 if (seg_ref_active) {
1641 vpx_memset(ref_costs_single, 0, MAX_REF_FRAMES * sizeof(*ref_costs_single));
1642 vpx_memset(ref_costs_comp, 0, MAX_REF_FRAMES * sizeof(*ref_costs_comp));
1643 *comp_mode_p = 128;
1644 } else {
1645 vp9_prob intra_inter_p = vp9_get_intra_inter_prob(cm, xd);
1646 vp9_prob comp_inter_p = 128;
1647
1648 if (cm->reference_mode == REFERENCE_MODE_SELECT) {
1649 comp_inter_p = vp9_get_reference_mode_prob(cm, xd);
1650 *comp_mode_p = comp_inter_p;
1651 } else {
1652 *comp_mode_p = 128;
1653 }
1654
1655 ref_costs_single[INTRA_FRAME] = vp9_cost_bit(intra_inter_p, 0);
1656
1657 if (cm->reference_mode != COMPOUND_REFERENCE) {
1658 vp9_prob ref_single_p1 = vp9_get_pred_prob_single_ref_p1(cm, xd);
1659 vp9_prob ref_single_p2 = vp9_get_pred_prob_single_ref_p2(cm, xd);
1660 unsigned int base_cost = vp9_cost_bit(intra_inter_p, 1);
1661
1662 if (cm->reference_mode == REFERENCE_MODE_SELECT)
1663 base_cost += vp9_cost_bit(comp_inter_p, 0);
1664
1665 ref_costs_single[LAST_FRAME] = ref_costs_single[GOLDEN_FRAME] =
1666 ref_costs_single[ALTREF_FRAME] = base_cost;
1667 ref_costs_single[LAST_FRAME] += vp9_cost_bit(ref_single_p1, 0);
1668 ref_costs_single[GOLDEN_FRAME] += vp9_cost_bit(ref_single_p1, 1);
1669 ref_costs_single[ALTREF_FRAME] += vp9_cost_bit(ref_single_p1, 1);
1670 ref_costs_single[GOLDEN_FRAME] += vp9_cost_bit(ref_single_p2, 0);
1671 ref_costs_single[ALTREF_FRAME] += vp9_cost_bit(ref_single_p2, 1);
1672 } else {
1673 ref_costs_single[LAST_FRAME] = 512;
1674 ref_costs_single[GOLDEN_FRAME] = 512;
1675 ref_costs_single[ALTREF_FRAME] = 512;
1676 }
1677 if (cm->reference_mode != SINGLE_REFERENCE) {
1678 vp9_prob ref_comp_p = vp9_get_pred_prob_comp_ref_p(cm, xd);
1679 unsigned int base_cost = vp9_cost_bit(intra_inter_p, 1);
1680
1681 if (cm->reference_mode == REFERENCE_MODE_SELECT)
1682 base_cost += vp9_cost_bit(comp_inter_p, 1);
1683
1684 ref_costs_comp[LAST_FRAME] = base_cost + vp9_cost_bit(ref_comp_p, 0);
1685 ref_costs_comp[GOLDEN_FRAME] = base_cost + vp9_cost_bit(ref_comp_p, 1);
1686 } else {
1687 ref_costs_comp[LAST_FRAME] = 512;
1688 ref_costs_comp[GOLDEN_FRAME] = 512;
1689 }
1690 }
1691 }
1692
store_coding_context(MACROBLOCK * x,PICK_MODE_CONTEXT * ctx,int mode_index,int64_t comp_pred_diff[REFERENCE_MODES],const int64_t tx_size_diff[TX_MODES],int64_t best_filter_diff[SWITCHABLE_FILTER_CONTEXTS])1693 static void store_coding_context(MACROBLOCK *x, PICK_MODE_CONTEXT *ctx,
1694 int mode_index,
1695 int64_t comp_pred_diff[REFERENCE_MODES],
1696 const int64_t tx_size_diff[TX_MODES],
1697 int64_t best_filter_diff[SWITCHABLE_FILTER_CONTEXTS]) {
1698 MACROBLOCKD *const xd = &x->e_mbd;
1699
1700 // Take a snapshot of the coding context so it can be
1701 // restored if we decide to encode this way
1702 ctx->skip = x->skip;
1703 ctx->best_mode_index = mode_index;
1704 ctx->mic = *xd->mi[0];
1705 ctx->single_pred_diff = (int)comp_pred_diff[SINGLE_REFERENCE];
1706 ctx->comp_pred_diff = (int)comp_pred_diff[COMPOUND_REFERENCE];
1707 ctx->hybrid_pred_diff = (int)comp_pred_diff[REFERENCE_MODE_SELECT];
1708
1709 vpx_memcpy(ctx->tx_rd_diff, tx_size_diff, sizeof(ctx->tx_rd_diff));
1710 vpx_memcpy(ctx->best_filter_diff, best_filter_diff,
1711 sizeof(*best_filter_diff) * SWITCHABLE_FILTER_CONTEXTS);
1712 }
1713
setup_buffer_inter(VP9_COMP * cpi,MACROBLOCK * x,const TileInfo * const tile,MV_REFERENCE_FRAME ref_frame,BLOCK_SIZE block_size,int mi_row,int mi_col,int_mv frame_nearest_mv[MAX_REF_FRAMES],int_mv frame_near_mv[MAX_REF_FRAMES],struct buf_2d yv12_mb[4][MAX_MB_PLANE])1714 static void setup_buffer_inter(VP9_COMP *cpi, MACROBLOCK *x,
1715 const TileInfo *const tile,
1716 MV_REFERENCE_FRAME ref_frame,
1717 BLOCK_SIZE block_size,
1718 int mi_row, int mi_col,
1719 int_mv frame_nearest_mv[MAX_REF_FRAMES],
1720 int_mv frame_near_mv[MAX_REF_FRAMES],
1721 struct buf_2d yv12_mb[4][MAX_MB_PLANE]) {
1722 const VP9_COMMON *cm = &cpi->common;
1723 const YV12_BUFFER_CONFIG *yv12 = get_ref_frame_buffer(cpi, ref_frame);
1724 MACROBLOCKD *const xd = &x->e_mbd;
1725 MODE_INFO *const mi = xd->mi[0];
1726 int_mv *const candidates = mi->mbmi.ref_mvs[ref_frame];
1727 const struct scale_factors *const sf = &cm->frame_refs[ref_frame - 1].sf;
1728
1729 // TODO(jkoleszar): Is the UV buffer ever used here? If so, need to make this
1730 // use the UV scaling factors.
1731 vp9_setup_pred_block(xd, yv12_mb[ref_frame], yv12, mi_row, mi_col, sf, sf);
1732
1733 // Gets an initial list of candidate vectors from neighbours and orders them
1734 vp9_find_mv_refs(cm, xd, tile, mi, ref_frame, candidates, mi_row, mi_col);
1735
1736 // Candidate refinement carried out at encoder and decoder
1737 vp9_find_best_ref_mvs(xd, cm->allow_high_precision_mv, candidates,
1738 &frame_nearest_mv[ref_frame],
1739 &frame_near_mv[ref_frame]);
1740
1741 // Further refinement that is encode side only to test the top few candidates
1742 // in full and choose the best as the centre point for subsequent searches.
1743 // The current implementation doesn't support scaling.
1744 if (!vp9_is_scaled(sf) && block_size >= BLOCK_8X8)
1745 vp9_mv_pred(cpi, x, yv12_mb[ref_frame][0].buf, yv12->y_stride,
1746 ref_frame, block_size);
1747 }
1748
single_motion_search(VP9_COMP * cpi,MACROBLOCK * x,BLOCK_SIZE bsize,int mi_row,int mi_col,int_mv * tmp_mv,int * rate_mv)1749 static void single_motion_search(VP9_COMP *cpi, MACROBLOCK *x,
1750 BLOCK_SIZE bsize,
1751 int mi_row, int mi_col,
1752 int_mv *tmp_mv, int *rate_mv) {
1753 MACROBLOCKD *xd = &x->e_mbd;
1754 const VP9_COMMON *cm = &cpi->common;
1755 MB_MODE_INFO *mbmi = &xd->mi[0]->mbmi;
1756 struct buf_2d backup_yv12[MAX_MB_PLANE] = {{0, 0}};
1757 int bestsme = INT_MAX;
1758 int step_param;
1759 int sadpb = x->sadperbit16;
1760 MV mvp_full;
1761 int ref = mbmi->ref_frame[0];
1762 MV ref_mv = mbmi->ref_mvs[ref][0].as_mv;
1763
1764 int tmp_col_min = x->mv_col_min;
1765 int tmp_col_max = x->mv_col_max;
1766 int tmp_row_min = x->mv_row_min;
1767 int tmp_row_max = x->mv_row_max;
1768
1769 const YV12_BUFFER_CONFIG *scaled_ref_frame = vp9_get_scaled_ref_frame(cpi,
1770 ref);
1771
1772 MV pred_mv[3];
1773 pred_mv[0] = mbmi->ref_mvs[ref][0].as_mv;
1774 pred_mv[1] = mbmi->ref_mvs[ref][1].as_mv;
1775 pred_mv[2] = x->pred_mv[ref];
1776
1777 if (scaled_ref_frame) {
1778 int i;
1779 // Swap out the reference frame for a version that's been scaled to
1780 // match the resolution of the current frame, allowing the existing
1781 // motion search code to be used without additional modifications.
1782 for (i = 0; i < MAX_MB_PLANE; i++)
1783 backup_yv12[i] = xd->plane[i].pre[0];
1784
1785 vp9_setup_pre_planes(xd, 0, scaled_ref_frame, mi_row, mi_col, NULL);
1786 }
1787
1788 vp9_set_mv_search_range(x, &ref_mv);
1789
1790 // Work out the size of the first step in the mv step search.
1791 // 0 here is maximum length first step. 1 is MAX >> 1 etc.
1792 if (cpi->sf.mv.auto_mv_step_size && cm->show_frame) {
1793 // Take wtd average of the step_params based on the last frame's
1794 // max mv magnitude and that based on the best ref mvs of the current
1795 // block for the given reference.
1796 step_param = (vp9_init_search_range(x->max_mv_context[ref]) +
1797 cpi->mv_step_param) / 2;
1798 } else {
1799 step_param = cpi->mv_step_param;
1800 }
1801
1802 if (cpi->sf.adaptive_motion_search && bsize < BLOCK_64X64 &&
1803 cm->show_frame) {
1804 int boffset = 2 * (b_width_log2(BLOCK_64X64) - MIN(b_height_log2(bsize),
1805 b_width_log2(bsize)));
1806 step_param = MAX(step_param, boffset);
1807 }
1808
1809 if (cpi->sf.adaptive_motion_search) {
1810 int bwl = b_width_log2(bsize);
1811 int bhl = b_height_log2(bsize);
1812 int i;
1813 int tlevel = x->pred_mv_sad[ref] >> (bwl + bhl + 4);
1814
1815 if (tlevel < 5)
1816 step_param += 2;
1817
1818 for (i = LAST_FRAME; i <= ALTREF_FRAME && cm->show_frame; ++i) {
1819 if ((x->pred_mv_sad[ref] >> 3) > x->pred_mv_sad[i]) {
1820 x->pred_mv[ref].row = 0;
1821 x->pred_mv[ref].col = 0;
1822 tmp_mv->as_int = INVALID_MV;
1823
1824 if (scaled_ref_frame) {
1825 int i;
1826 for (i = 0; i < MAX_MB_PLANE; i++)
1827 xd->plane[i].pre[0] = backup_yv12[i];
1828 }
1829 return;
1830 }
1831 }
1832 }
1833
1834 mvp_full = pred_mv[x->mv_best_ref_index[ref]];
1835
1836 mvp_full.col >>= 3;
1837 mvp_full.row >>= 3;
1838
1839 bestsme = vp9_full_pixel_search(cpi, x, bsize, &mvp_full, step_param, sadpb,
1840 &ref_mv, &tmp_mv->as_mv, INT_MAX, 1);
1841
1842 x->mv_col_min = tmp_col_min;
1843 x->mv_col_max = tmp_col_max;
1844 x->mv_row_min = tmp_row_min;
1845 x->mv_row_max = tmp_row_max;
1846
1847 if (bestsme < INT_MAX) {
1848 int dis; /* TODO: use dis in distortion calculation later. */
1849 cpi->find_fractional_mv_step(x, &tmp_mv->as_mv, &ref_mv,
1850 cm->allow_high_precision_mv,
1851 x->errorperbit,
1852 &cpi->fn_ptr[bsize],
1853 cpi->sf.mv.subpel_force_stop,
1854 cpi->sf.mv.subpel_iters_per_step,
1855 x->nmvjointcost, x->mvcost,
1856 &dis, &x->pred_sse[ref], NULL, 0, 0);
1857 }
1858 *rate_mv = vp9_mv_bit_cost(&tmp_mv->as_mv, &ref_mv,
1859 x->nmvjointcost, x->mvcost, MV_COST_WEIGHT);
1860
1861 if (cpi->sf.adaptive_motion_search && cm->show_frame)
1862 x->pred_mv[ref] = tmp_mv->as_mv;
1863
1864 if (scaled_ref_frame) {
1865 int i;
1866 for (i = 0; i < MAX_MB_PLANE; i++)
1867 xd->plane[i].pre[0] = backup_yv12[i];
1868 }
1869 }
1870
joint_motion_search(VP9_COMP * cpi,MACROBLOCK * x,BLOCK_SIZE bsize,int_mv * frame_mv,int mi_row,int mi_col,int_mv single_newmv[MAX_REF_FRAMES],int * rate_mv)1871 static void joint_motion_search(VP9_COMP *cpi, MACROBLOCK *x,
1872 BLOCK_SIZE bsize,
1873 int_mv *frame_mv,
1874 int mi_row, int mi_col,
1875 int_mv single_newmv[MAX_REF_FRAMES],
1876 int *rate_mv) {
1877 const int pw = 4 * num_4x4_blocks_wide_lookup[bsize];
1878 const int ph = 4 * num_4x4_blocks_high_lookup[bsize];
1879 MACROBLOCKD *xd = &x->e_mbd;
1880 MB_MODE_INFO *mbmi = &xd->mi[0]->mbmi;
1881 const int refs[2] = { mbmi->ref_frame[0],
1882 mbmi->ref_frame[1] < 0 ? 0 : mbmi->ref_frame[1] };
1883 int_mv ref_mv[2];
1884 int ite, ref;
1885 // Prediction buffer from second frame.
1886 uint8_t *second_pred = vpx_memalign(16, pw * ph * sizeof(uint8_t));
1887 const InterpKernel *kernel = vp9_get_interp_kernel(mbmi->interp_filter);
1888
1889 // Do joint motion search in compound mode to get more accurate mv.
1890 struct buf_2d backup_yv12[2][MAX_MB_PLANE];
1891 struct buf_2d scaled_first_yv12 = xd->plane[0].pre[0];
1892 int last_besterr[2] = {INT_MAX, INT_MAX};
1893 const YV12_BUFFER_CONFIG *const scaled_ref_frame[2] = {
1894 vp9_get_scaled_ref_frame(cpi, mbmi->ref_frame[0]),
1895 vp9_get_scaled_ref_frame(cpi, mbmi->ref_frame[1])
1896 };
1897
1898 for (ref = 0; ref < 2; ++ref) {
1899 ref_mv[ref] = mbmi->ref_mvs[refs[ref]][0];
1900
1901 if (scaled_ref_frame[ref]) {
1902 int i;
1903 // Swap out the reference frame for a version that's been scaled to
1904 // match the resolution of the current frame, allowing the existing
1905 // motion search code to be used without additional modifications.
1906 for (i = 0; i < MAX_MB_PLANE; i++)
1907 backup_yv12[ref][i] = xd->plane[i].pre[ref];
1908 vp9_setup_pre_planes(xd, ref, scaled_ref_frame[ref], mi_row, mi_col,
1909 NULL);
1910 }
1911
1912 frame_mv[refs[ref]].as_int = single_newmv[refs[ref]].as_int;
1913 }
1914
1915 // Allow joint search multiple times iteratively for each ref frame
1916 // and break out the search loop if it couldn't find better mv.
1917 for (ite = 0; ite < 4; ite++) {
1918 struct buf_2d ref_yv12[2];
1919 int bestsme = INT_MAX;
1920 int sadpb = x->sadperbit16;
1921 MV tmp_mv;
1922 int search_range = 3;
1923
1924 int tmp_col_min = x->mv_col_min;
1925 int tmp_col_max = x->mv_col_max;
1926 int tmp_row_min = x->mv_row_min;
1927 int tmp_row_max = x->mv_row_max;
1928 int id = ite % 2;
1929
1930 // Initialized here because of compiler problem in Visual Studio.
1931 ref_yv12[0] = xd->plane[0].pre[0];
1932 ref_yv12[1] = xd->plane[0].pre[1];
1933
1934 // Get pred block from second frame.
1935 vp9_build_inter_predictor(ref_yv12[!id].buf,
1936 ref_yv12[!id].stride,
1937 second_pred, pw,
1938 &frame_mv[refs[!id]].as_mv,
1939 &xd->block_refs[!id]->sf,
1940 pw, ph, 0,
1941 kernel, MV_PRECISION_Q3,
1942 mi_col * MI_SIZE, mi_row * MI_SIZE);
1943
1944 // Compound motion search on first ref frame.
1945 if (id)
1946 xd->plane[0].pre[0] = ref_yv12[id];
1947 vp9_set_mv_search_range(x, &ref_mv[id].as_mv);
1948
1949 // Use mv result from single mode as mvp.
1950 tmp_mv = frame_mv[refs[id]].as_mv;
1951
1952 tmp_mv.col >>= 3;
1953 tmp_mv.row >>= 3;
1954
1955 // Small-range full-pixel motion search
1956 bestsme = vp9_refining_search_8p_c(x, &tmp_mv, sadpb,
1957 search_range,
1958 &cpi->fn_ptr[bsize],
1959 &ref_mv[id].as_mv, second_pred);
1960 if (bestsme < INT_MAX)
1961 bestsme = vp9_get_mvpred_av_var(x, &tmp_mv, &ref_mv[id].as_mv,
1962 second_pred, &cpi->fn_ptr[bsize], 1);
1963
1964 x->mv_col_min = tmp_col_min;
1965 x->mv_col_max = tmp_col_max;
1966 x->mv_row_min = tmp_row_min;
1967 x->mv_row_max = tmp_row_max;
1968
1969 if (bestsme < INT_MAX) {
1970 int dis; /* TODO: use dis in distortion calculation later. */
1971 unsigned int sse;
1972 bestsme = cpi->find_fractional_mv_step(
1973 x, &tmp_mv,
1974 &ref_mv[id].as_mv,
1975 cpi->common.allow_high_precision_mv,
1976 x->errorperbit,
1977 &cpi->fn_ptr[bsize],
1978 0, cpi->sf.mv.subpel_iters_per_step,
1979 x->nmvjointcost, x->mvcost,
1980 &dis, &sse, second_pred,
1981 pw, ph);
1982 }
1983
1984 if (id)
1985 xd->plane[0].pre[0] = scaled_first_yv12;
1986
1987 if (bestsme < last_besterr[id]) {
1988 frame_mv[refs[id]].as_mv = tmp_mv;
1989 last_besterr[id] = bestsme;
1990 } else {
1991 break;
1992 }
1993 }
1994
1995 *rate_mv = 0;
1996
1997 for (ref = 0; ref < 2; ++ref) {
1998 if (scaled_ref_frame[ref]) {
1999 // restore the predictor
2000 int i;
2001 for (i = 0; i < MAX_MB_PLANE; i++)
2002 xd->plane[i].pre[ref] = backup_yv12[ref][i];
2003 }
2004
2005 *rate_mv += vp9_mv_bit_cost(&frame_mv[refs[ref]].as_mv,
2006 &mbmi->ref_mvs[refs[ref]][0].as_mv,
2007 x->nmvjointcost, x->mvcost, MV_COST_WEIGHT);
2008 }
2009
2010 vpx_free(second_pred);
2011 }
2012
restore_dst_buf(MACROBLOCKD * xd,uint8_t * orig_dst[MAX_MB_PLANE],int orig_dst_stride[MAX_MB_PLANE])2013 static INLINE void restore_dst_buf(MACROBLOCKD *xd,
2014 uint8_t *orig_dst[MAX_MB_PLANE],
2015 int orig_dst_stride[MAX_MB_PLANE]) {
2016 int i;
2017 for (i = 0; i < MAX_MB_PLANE; i++) {
2018 xd->plane[i].dst.buf = orig_dst[i];
2019 xd->plane[i].dst.stride = orig_dst_stride[i];
2020 }
2021 }
2022
rd_encode_breakout_test(VP9_COMP * cpi,MACROBLOCK * x,BLOCK_SIZE bsize,int * rate2,int64_t * distortion,int64_t * distortion_uv,int * disable_skip)2023 static void rd_encode_breakout_test(VP9_COMP *cpi, MACROBLOCK *x,
2024 BLOCK_SIZE bsize, int *rate2,
2025 int64_t *distortion, int64_t *distortion_uv,
2026 int *disable_skip) {
2027 VP9_COMMON *cm = &cpi->common;
2028 MACROBLOCKD *xd = &x->e_mbd;
2029 const BLOCK_SIZE y_size = get_plane_block_size(bsize, &xd->plane[0]);
2030 const BLOCK_SIZE uv_size = get_plane_block_size(bsize, &xd->plane[1]);
2031 unsigned int var, sse;
2032 // Skipping threshold for ac.
2033 unsigned int thresh_ac;
2034 // Skipping threshold for dc
2035 unsigned int thresh_dc;
2036
2037 var = cpi->fn_ptr[y_size].vf(x->plane[0].src.buf, x->plane[0].src.stride,
2038 xd->plane[0].dst.buf,
2039 xd->plane[0].dst.stride, &sse);
2040
2041 if (x->encode_breakout > 0) {
2042 // Set a maximum for threshold to avoid big PSNR loss in low bitrate
2043 // case. Use extreme low threshold for static frames to limit skipping.
2044 const unsigned int max_thresh = (cpi->allow_encode_breakout ==
2045 ENCODE_BREAKOUT_LIMITED) ? 128 : 36000;
2046 // The encode_breakout input
2047 const unsigned int min_thresh =
2048 MIN(((unsigned int)x->encode_breakout << 4), max_thresh);
2049
2050 // Calculate threshold according to dequant value.
2051 thresh_ac = (xd->plane[0].dequant[1] * xd->plane[0].dequant[1]) / 9;
2052 thresh_ac = clamp(thresh_ac, min_thresh, max_thresh);
2053
2054 // Adjust threshold according to partition size.
2055 thresh_ac >>= 8 - (b_width_log2(bsize) +
2056 b_height_log2(bsize));
2057 thresh_dc = (xd->plane[0].dequant[0] * xd->plane[0].dequant[0] >> 6);
2058 } else {
2059 thresh_ac = 0;
2060 thresh_dc = 0;
2061 }
2062
2063 // Y skipping condition checking
2064 if (sse < thresh_ac || sse == 0) {
2065 // dc skipping checking
2066 if ((sse - var) < thresh_dc || sse == var) {
2067 unsigned int sse_u, sse_v;
2068 unsigned int var_u, var_v;
2069
2070 var_u = cpi->fn_ptr[uv_size].vf(x->plane[1].src.buf,
2071 x->plane[1].src.stride,
2072 xd->plane[1].dst.buf,
2073 xd->plane[1].dst.stride, &sse_u);
2074
2075 // U skipping condition checking
2076 if ((sse_u * 4 < thresh_ac || sse_u == 0) &&
2077 (sse_u - var_u < thresh_dc || sse_u == var_u)) {
2078 var_v = cpi->fn_ptr[uv_size].vf(x->plane[2].src.buf,
2079 x->plane[2].src.stride,
2080 xd->plane[2].dst.buf,
2081 xd->plane[2].dst.stride, &sse_v);
2082
2083 // V skipping condition checking
2084 if ((sse_v * 4 < thresh_ac || sse_v == 0) &&
2085 (sse_v - var_v < thresh_dc || sse_v == var_v)) {
2086 x->skip = 1;
2087
2088 // The cost of skip bit needs to be added.
2089 *rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1);
2090
2091 // Scaling factor for SSE from spatial domain to frequency domain
2092 // is 16. Adjust distortion accordingly.
2093 *distortion_uv = (sse_u + sse_v) << 4;
2094 *distortion = (sse << 4) + *distortion_uv;
2095
2096 *disable_skip = 1;
2097 }
2098 }
2099 }
2100 }
2101 }
2102
handle_inter_mode(VP9_COMP * cpi,MACROBLOCK * x,BLOCK_SIZE bsize,int64_t txfm_cache[],int * rate2,int64_t * distortion,int * skippable,int * rate_y,int64_t * distortion_y,int * rate_uv,int64_t * distortion_uv,int * disable_skip,int_mv (* mode_mv)[MAX_REF_FRAMES],int mi_row,int mi_col,int_mv single_newmv[MAX_REF_FRAMES],int64_t * psse,const int64_t ref_best_rd)2103 static int64_t handle_inter_mode(VP9_COMP *cpi, MACROBLOCK *x,
2104 BLOCK_SIZE bsize,
2105 int64_t txfm_cache[],
2106 int *rate2, int64_t *distortion,
2107 int *skippable,
2108 int *rate_y, int64_t *distortion_y,
2109 int *rate_uv, int64_t *distortion_uv,
2110 int *disable_skip,
2111 int_mv (*mode_mv)[MAX_REF_FRAMES],
2112 int mi_row, int mi_col,
2113 int_mv single_newmv[MAX_REF_FRAMES],
2114 int64_t *psse,
2115 const int64_t ref_best_rd) {
2116 VP9_COMMON *cm = &cpi->common;
2117 RD_OPT *rd_opt = &cpi->rd;
2118 MACROBLOCKD *xd = &x->e_mbd;
2119 MB_MODE_INFO *mbmi = &xd->mi[0]->mbmi;
2120 const int is_comp_pred = has_second_ref(mbmi);
2121 const int this_mode = mbmi->mode;
2122 int_mv *frame_mv = mode_mv[this_mode];
2123 int i;
2124 int refs[2] = { mbmi->ref_frame[0],
2125 (mbmi->ref_frame[1] < 0 ? 0 : mbmi->ref_frame[1]) };
2126 int_mv cur_mv[2];
2127 int64_t this_rd = 0;
2128 DECLARE_ALIGNED_ARRAY(16, uint8_t, tmp_buf, MAX_MB_PLANE * 64 * 64);
2129 int pred_exists = 0;
2130 int intpel_mv;
2131 int64_t rd, best_rd = INT64_MAX;
2132 int best_needs_copy = 0;
2133 uint8_t *orig_dst[MAX_MB_PLANE];
2134 int orig_dst_stride[MAX_MB_PLANE];
2135 int rs = 0;
2136 INTERP_FILTER best_filter = SWITCHABLE;
2137 int skip_txfm[MAX_MB_PLANE] = {0};
2138 int64_t bsse[MAX_MB_PLANE] = {0};
2139
2140 int bsl = mi_width_log2_lookup[bsize];
2141 int pred_filter_search = cpi->sf.cb_pred_filter_search ?
2142 (((mi_row + mi_col) >> bsl) +
2143 get_chessboard_index(cm->current_video_frame)) & 0x1 : 0;
2144
2145 if (pred_filter_search) {
2146 INTERP_FILTER af = SWITCHABLE, lf = SWITCHABLE;
2147 if (xd->up_available)
2148 af = xd->mi[-xd->mi_stride]->mbmi.interp_filter;
2149 if (xd->left_available)
2150 lf = xd->mi[-1]->mbmi.interp_filter;
2151
2152 if ((this_mode != NEWMV) || (af == lf))
2153 best_filter = af;
2154 }
2155
2156 if (is_comp_pred) {
2157 if (frame_mv[refs[0]].as_int == INVALID_MV ||
2158 frame_mv[refs[1]].as_int == INVALID_MV)
2159 return INT64_MAX;
2160 }
2161
2162 if (this_mode == NEWMV) {
2163 int rate_mv;
2164 if (is_comp_pred) {
2165 // Initialize mv using single prediction mode result.
2166 frame_mv[refs[0]].as_int = single_newmv[refs[0]].as_int;
2167 frame_mv[refs[1]].as_int = single_newmv[refs[1]].as_int;
2168
2169 if (cpi->sf.comp_inter_joint_search_thresh <= bsize) {
2170 joint_motion_search(cpi, x, bsize, frame_mv,
2171 mi_row, mi_col, single_newmv, &rate_mv);
2172 } else {
2173 rate_mv = vp9_mv_bit_cost(&frame_mv[refs[0]].as_mv,
2174 &mbmi->ref_mvs[refs[0]][0].as_mv,
2175 x->nmvjointcost, x->mvcost, MV_COST_WEIGHT);
2176 rate_mv += vp9_mv_bit_cost(&frame_mv[refs[1]].as_mv,
2177 &mbmi->ref_mvs[refs[1]][0].as_mv,
2178 x->nmvjointcost, x->mvcost, MV_COST_WEIGHT);
2179 }
2180 *rate2 += rate_mv;
2181 } else {
2182 int_mv tmp_mv;
2183 single_motion_search(cpi, x, bsize, mi_row, mi_col,
2184 &tmp_mv, &rate_mv);
2185 if (tmp_mv.as_int == INVALID_MV)
2186 return INT64_MAX;
2187 *rate2 += rate_mv;
2188 frame_mv[refs[0]].as_int =
2189 xd->mi[0]->bmi[0].as_mv[0].as_int = tmp_mv.as_int;
2190 single_newmv[refs[0]].as_int = tmp_mv.as_int;
2191 }
2192 }
2193
2194 for (i = 0; i < is_comp_pred + 1; ++i) {
2195 cur_mv[i] = frame_mv[refs[i]];
2196 // Clip "next_nearest" so that it does not extend to far out of image
2197 if (this_mode != NEWMV)
2198 clamp_mv2(&cur_mv[i].as_mv, xd);
2199
2200 if (mv_check_bounds(x, &cur_mv[i].as_mv))
2201 return INT64_MAX;
2202 mbmi->mv[i].as_int = cur_mv[i].as_int;
2203 }
2204
2205 // do first prediction into the destination buffer. Do the next
2206 // prediction into a temporary buffer. Then keep track of which one
2207 // of these currently holds the best predictor, and use the other
2208 // one for future predictions. In the end, copy from tmp_buf to
2209 // dst if necessary.
2210 for (i = 0; i < MAX_MB_PLANE; i++) {
2211 orig_dst[i] = xd->plane[i].dst.buf;
2212 orig_dst_stride[i] = xd->plane[i].dst.stride;
2213 }
2214
2215 /* We don't include the cost of the second reference here, because there
2216 * are only three options: Last/Golden, ARF/Last or Golden/ARF, or in other
2217 * words if you present them in that order, the second one is always known
2218 * if the first is known */
2219 *rate2 += cost_mv_ref(cpi, this_mode, mbmi->mode_context[refs[0]]);
2220
2221 pred_exists = 0;
2222 // Are all MVs integer pel for Y and UV
2223 intpel_mv = !mv_has_subpel(&mbmi->mv[0].as_mv);
2224 if (is_comp_pred)
2225 intpel_mv &= !mv_has_subpel(&mbmi->mv[1].as_mv);
2226
2227 // Search for best switchable filter by checking the variance of
2228 // pred error irrespective of whether the filter will be used
2229 rd_opt->mask_filter = 0;
2230 for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i)
2231 rd_opt->filter_cache[i] = INT64_MAX;
2232
2233 if (cm->interp_filter != BILINEAR) {
2234 if (x->source_variance < cpi->sf.disable_filter_search_var_thresh) {
2235 best_filter = EIGHTTAP;
2236 } else if (best_filter == SWITCHABLE) {
2237 int newbest;
2238 int tmp_rate_sum = 0;
2239 int64_t tmp_dist_sum = 0;
2240
2241 for (i = 0; i < SWITCHABLE_FILTERS; ++i) {
2242 int j;
2243 int64_t rs_rd;
2244 mbmi->interp_filter = i;
2245 rs = vp9_get_switchable_rate(cpi);
2246 rs_rd = RDCOST(x->rdmult, x->rddiv, rs, 0);
2247
2248 if (i > 0 && intpel_mv) {
2249 rd = RDCOST(x->rdmult, x->rddiv, tmp_rate_sum, tmp_dist_sum);
2250 rd_opt->filter_cache[i] = rd;
2251 rd_opt->filter_cache[SWITCHABLE_FILTERS] =
2252 MIN(rd_opt->filter_cache[SWITCHABLE_FILTERS], rd + rs_rd);
2253 if (cm->interp_filter == SWITCHABLE)
2254 rd += rs_rd;
2255 rd_opt->mask_filter = MAX(rd_opt->mask_filter, rd);
2256 } else {
2257 int rate_sum = 0;
2258 int64_t dist_sum = 0;
2259 if ((cm->interp_filter == SWITCHABLE &&
2260 (!i || best_needs_copy)) ||
2261 (cm->interp_filter != SWITCHABLE &&
2262 (cm->interp_filter == mbmi->interp_filter ||
2263 (i == 0 && intpel_mv)))) {
2264 restore_dst_buf(xd, orig_dst, orig_dst_stride);
2265 } else {
2266 for (j = 0; j < MAX_MB_PLANE; j++) {
2267 xd->plane[j].dst.buf = tmp_buf + j * 64 * 64;
2268 xd->plane[j].dst.stride = 64;
2269 }
2270 }
2271 vp9_build_inter_predictors_sb(xd, mi_row, mi_col, bsize);
2272 model_rd_for_sb(cpi, bsize, x, xd, &rate_sum, &dist_sum);
2273
2274 rd = RDCOST(x->rdmult, x->rddiv, rate_sum, dist_sum);
2275 rd_opt->filter_cache[i] = rd;
2276 rd_opt->filter_cache[SWITCHABLE_FILTERS] =
2277 MIN(rd_opt->filter_cache[SWITCHABLE_FILTERS], rd + rs_rd);
2278 if (cm->interp_filter == SWITCHABLE)
2279 rd += rs_rd;
2280 rd_opt->mask_filter = MAX(rd_opt->mask_filter, rd);
2281
2282 if (i == 0 && intpel_mv) {
2283 tmp_rate_sum = rate_sum;
2284 tmp_dist_sum = dist_sum;
2285 }
2286 }
2287
2288 if (i == 0 && cpi->sf.use_rd_breakout && ref_best_rd < INT64_MAX) {
2289 if (rd / 2 > ref_best_rd) {
2290 restore_dst_buf(xd, orig_dst, orig_dst_stride);
2291 return INT64_MAX;
2292 }
2293 }
2294 newbest = i == 0 || rd < best_rd;
2295
2296 if (newbest) {
2297 best_rd = rd;
2298 best_filter = mbmi->interp_filter;
2299 if (cm->interp_filter == SWITCHABLE && i && !intpel_mv)
2300 best_needs_copy = !best_needs_copy;
2301 vpx_memcpy(skip_txfm, x->skip_txfm, sizeof(skip_txfm));
2302 vpx_memcpy(bsse, x->bsse, sizeof(bsse));
2303 }
2304
2305 if ((cm->interp_filter == SWITCHABLE && newbest) ||
2306 (cm->interp_filter != SWITCHABLE &&
2307 cm->interp_filter == mbmi->interp_filter)) {
2308 pred_exists = 1;
2309 }
2310 }
2311 restore_dst_buf(xd, orig_dst, orig_dst_stride);
2312 }
2313 }
2314 // Set the appropriate filter
2315 mbmi->interp_filter = cm->interp_filter != SWITCHABLE ?
2316 cm->interp_filter : best_filter;
2317 rs = cm->interp_filter == SWITCHABLE ? vp9_get_switchable_rate(cpi) : 0;
2318
2319 if (pred_exists) {
2320 if (best_needs_copy) {
2321 // again temporarily set the buffers to local memory to prevent a memcpy
2322 for (i = 0; i < MAX_MB_PLANE; i++) {
2323 xd->plane[i].dst.buf = tmp_buf + i * 64 * 64;
2324 xd->plane[i].dst.stride = 64;
2325 }
2326 }
2327 } else {
2328 // Handles the special case when a filter that is not in the
2329 // switchable list (ex. bilinear, 6-tap) is indicated at the frame level
2330 vp9_build_inter_predictors_sb(xd, mi_row, mi_col, bsize);
2331 }
2332
2333 if (cpi->sf.use_rd_breakout && ref_best_rd < INT64_MAX) {
2334 int tmp_rate;
2335 int64_t tmp_dist;
2336 model_rd_for_sb(cpi, bsize, x, xd, &tmp_rate, &tmp_dist);
2337 rd = RDCOST(x->rdmult, x->rddiv, rs + tmp_rate, tmp_dist);
2338 // if current pred_error modeled rd is substantially more than the best
2339 // so far, do not bother doing full rd
2340 if (rd / 2 > ref_best_rd) {
2341 restore_dst_buf(xd, orig_dst, orig_dst_stride);
2342 return INT64_MAX;
2343 }
2344 }
2345
2346 if (cm->interp_filter == SWITCHABLE)
2347 *rate2 += vp9_get_switchable_rate(cpi);
2348
2349 if (!is_comp_pred) {
2350 if (cpi->allow_encode_breakout)
2351 rd_encode_breakout_test(cpi, x, bsize, rate2, distortion, distortion_uv,
2352 disable_skip);
2353 }
2354
2355 vpx_memcpy(x->skip_txfm, skip_txfm, sizeof(skip_txfm));
2356 vpx_memcpy(x->bsse, bsse, sizeof(bsse));
2357
2358 if (!x->skip) {
2359 int skippable_y, skippable_uv;
2360 int64_t sseuv = INT64_MAX;
2361 int64_t rdcosty = INT64_MAX;
2362
2363 // Y cost and distortion
2364 inter_super_block_yrd(cpi, x, rate_y, distortion_y, &skippable_y, psse,
2365 bsize, txfm_cache, ref_best_rd);
2366
2367 if (*rate_y == INT_MAX) {
2368 *rate2 = INT_MAX;
2369 *distortion = INT64_MAX;
2370 restore_dst_buf(xd, orig_dst, orig_dst_stride);
2371 return INT64_MAX;
2372 }
2373
2374 *rate2 += *rate_y;
2375 *distortion += *distortion_y;
2376
2377 rdcosty = RDCOST(x->rdmult, x->rddiv, *rate2, *distortion);
2378 rdcosty = MIN(rdcosty, RDCOST(x->rdmult, x->rddiv, 0, *psse));
2379
2380 super_block_uvrd(cpi, x, rate_uv, distortion_uv, &skippable_uv, &sseuv,
2381 bsize, ref_best_rd - rdcosty);
2382 if (*rate_uv == INT_MAX) {
2383 *rate2 = INT_MAX;
2384 *distortion = INT64_MAX;
2385 restore_dst_buf(xd, orig_dst, orig_dst_stride);
2386 return INT64_MAX;
2387 }
2388
2389 *psse += sseuv;
2390 *rate2 += *rate_uv;
2391 *distortion += *distortion_uv;
2392 *skippable = skippable_y && skippable_uv;
2393 }
2394
2395 restore_dst_buf(xd, orig_dst, orig_dst_stride);
2396 return this_rd; // if 0, this will be re-calculated by caller
2397 }
2398
vp9_rd_pick_intra_mode_sb(VP9_COMP * cpi,MACROBLOCK * x,int * returnrate,int64_t * returndist,BLOCK_SIZE bsize,PICK_MODE_CONTEXT * ctx,int64_t best_rd)2399 void vp9_rd_pick_intra_mode_sb(VP9_COMP *cpi, MACROBLOCK *x,
2400 int *returnrate, int64_t *returndist,
2401 BLOCK_SIZE bsize,
2402 PICK_MODE_CONTEXT *ctx, int64_t best_rd) {
2403 VP9_COMMON *const cm = &cpi->common;
2404 MACROBLOCKD *const xd = &x->e_mbd;
2405 struct macroblockd_plane *const pd = xd->plane;
2406 int rate_y = 0, rate_uv = 0, rate_y_tokenonly = 0, rate_uv_tokenonly = 0;
2407 int y_skip = 0, uv_skip = 0;
2408 int64_t dist_y = 0, dist_uv = 0, tx_cache[TX_MODES] = { 0 };
2409 TX_SIZE max_uv_tx_size;
2410 x->skip_encode = 0;
2411 ctx->skip = 0;
2412 xd->mi[0]->mbmi.ref_frame[0] = INTRA_FRAME;
2413
2414 if (bsize >= BLOCK_8X8) {
2415 if (rd_pick_intra_sby_mode(cpi, x, &rate_y, &rate_y_tokenonly,
2416 &dist_y, &y_skip, bsize, tx_cache,
2417 best_rd) >= best_rd) {
2418 *returnrate = INT_MAX;
2419 return;
2420 }
2421 max_uv_tx_size = get_uv_tx_size_impl(xd->mi[0]->mbmi.tx_size, bsize,
2422 pd[1].subsampling_x,
2423 pd[1].subsampling_y);
2424 rd_pick_intra_sbuv_mode(cpi, x, ctx, &rate_uv, &rate_uv_tokenonly,
2425 &dist_uv, &uv_skip, bsize, max_uv_tx_size);
2426 } else {
2427 y_skip = 0;
2428 if (rd_pick_intra_sub_8x8_y_mode(cpi, x, &rate_y, &rate_y_tokenonly,
2429 &dist_y, best_rd) >= best_rd) {
2430 *returnrate = INT_MAX;
2431 return;
2432 }
2433 max_uv_tx_size = get_uv_tx_size_impl(xd->mi[0]->mbmi.tx_size, bsize,
2434 pd[1].subsampling_x,
2435 pd[1].subsampling_y);
2436 rd_pick_intra_sbuv_mode(cpi, x, ctx, &rate_uv, &rate_uv_tokenonly,
2437 &dist_uv, &uv_skip, BLOCK_8X8, max_uv_tx_size);
2438 }
2439
2440 if (y_skip && uv_skip) {
2441 *returnrate = rate_y + rate_uv - rate_y_tokenonly - rate_uv_tokenonly +
2442 vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1);
2443 *returndist = dist_y + dist_uv;
2444 vp9_zero(ctx->tx_rd_diff);
2445 } else {
2446 int i;
2447 *returnrate = rate_y + rate_uv + vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0);
2448 *returndist = dist_y + dist_uv;
2449 if (cpi->sf.tx_size_search_method == USE_FULL_RD)
2450 for (i = 0; i < TX_MODES; i++) {
2451 if (tx_cache[i] < INT64_MAX && tx_cache[cm->tx_mode] < INT64_MAX)
2452 ctx->tx_rd_diff[i] = tx_cache[i] - tx_cache[cm->tx_mode];
2453 else
2454 ctx->tx_rd_diff[i] = 0;
2455 }
2456 }
2457
2458 ctx->mic = *xd->mi[0];
2459 }
2460
2461 // Updating rd_thresh_freq_fact[] here means that the different
2462 // partition/block sizes are handled independently based on the best
2463 // choice for the current partition. It may well be better to keep a scaled
2464 // best rd so far value and update rd_thresh_freq_fact based on the mode/size
2465 // combination that wins out.
update_rd_thresh_fact(VP9_COMP * cpi,int bsize,int best_mode_index)2466 static void update_rd_thresh_fact(VP9_COMP *cpi, int bsize,
2467 int best_mode_index) {
2468 if (cpi->sf.adaptive_rd_thresh > 0) {
2469 const int top_mode = bsize < BLOCK_8X8 ? MAX_REFS : MAX_MODES;
2470 int mode;
2471 for (mode = 0; mode < top_mode; ++mode) {
2472 int *const fact = &cpi->rd.thresh_freq_fact[bsize][mode];
2473
2474 if (mode == best_mode_index) {
2475 *fact -= (*fact >> 3);
2476 } else {
2477 *fact = MIN(*fact + RD_THRESH_INC,
2478 cpi->sf.adaptive_rd_thresh * RD_THRESH_MAX_FACT);
2479 }
2480 }
2481 }
2482 }
2483
vp9_rd_pick_inter_mode_sb(VP9_COMP * cpi,MACROBLOCK * x,const TileInfo * const tile,int mi_row,int mi_col,int * returnrate,int64_t * returndistortion,BLOCK_SIZE bsize,PICK_MODE_CONTEXT * ctx,int64_t best_rd_so_far)2484 int64_t vp9_rd_pick_inter_mode_sb(VP9_COMP *cpi, MACROBLOCK *x,
2485 const TileInfo *const tile,
2486 int mi_row, int mi_col,
2487 int *returnrate,
2488 int64_t *returndistortion,
2489 BLOCK_SIZE bsize,
2490 PICK_MODE_CONTEXT *ctx,
2491 int64_t best_rd_so_far) {
2492 VP9_COMMON *const cm = &cpi->common;
2493 RD_OPT *const rd_opt = &cpi->rd;
2494 MACROBLOCKD *const xd = &x->e_mbd;
2495 MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
2496 const struct segmentation *const seg = &cm->seg;
2497 struct macroblockd_plane *const pd = xd->plane;
2498 PREDICTION_MODE this_mode;
2499 MV_REFERENCE_FRAME ref_frame, second_ref_frame;
2500 unsigned char segment_id = mbmi->segment_id;
2501 int comp_pred, i;
2502 int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES];
2503 struct buf_2d yv12_mb[4][MAX_MB_PLANE];
2504 int_mv single_newmv[MAX_REF_FRAMES] = { { 0 } };
2505 static const int flag_list[4] = { 0, VP9_LAST_FLAG, VP9_GOLD_FLAG,
2506 VP9_ALT_FLAG };
2507 int64_t best_rd = best_rd_so_far;
2508 int64_t best_tx_rd[TX_MODES];
2509 int64_t best_tx_diff[TX_MODES];
2510 int64_t best_pred_diff[REFERENCE_MODES];
2511 int64_t best_pred_rd[REFERENCE_MODES];
2512 int64_t best_filter_rd[SWITCHABLE_FILTER_CONTEXTS];
2513 int64_t best_filter_diff[SWITCHABLE_FILTER_CONTEXTS];
2514 MB_MODE_INFO best_mbmode;
2515 int mode_index, best_mode_index = -1;
2516 unsigned int ref_costs_single[MAX_REF_FRAMES], ref_costs_comp[MAX_REF_FRAMES];
2517 vp9_prob comp_mode_p;
2518 int64_t best_intra_rd = INT64_MAX;
2519 int64_t best_inter_rd = INT64_MAX;
2520 PREDICTION_MODE best_intra_mode = DC_PRED;
2521 MV_REFERENCE_FRAME best_inter_ref_frame = LAST_FRAME;
2522 int rate_uv_intra[TX_SIZES], rate_uv_tokenonly[TX_SIZES];
2523 int64_t dist_uv[TX_SIZES];
2524 int skip_uv[TX_SIZES];
2525 PREDICTION_MODE mode_uv[TX_SIZES];
2526 int64_t mode_distortions[MB_MODE_COUNT] = {-1};
2527 int intra_cost_penalty = 20 * vp9_dc_quant(cm->base_qindex, cm->y_dc_delta_q);
2528 const int bws = num_8x8_blocks_wide_lookup[bsize] / 2;
2529 const int bhs = num_8x8_blocks_high_lookup[bsize] / 2;
2530 int best_skip2 = 0;
2531 int mode_skip_mask = 0;
2532 int mode_skip_start = cpi->sf.mode_skip_start + 1;
2533 const int *const rd_threshes = rd_opt->threshes[segment_id][bsize];
2534 const int *const rd_thresh_freq_fact = rd_opt->thresh_freq_fact[bsize];
2535 const int mode_search_skip_flags = cpi->sf.mode_search_skip_flags;
2536 const int intra_y_mode_mask =
2537 cpi->sf.intra_y_mode_mask[max_txsize_lookup[bsize]];
2538 int inter_mode_mask = cpi->sf.inter_mode_mask[bsize];
2539 vp9_zero(best_mbmode);
2540 x->skip_encode = cpi->sf.skip_encode_frame && x->q_index < QIDX_SKIP_THRESH;
2541
2542 estimate_ref_frame_costs(cm, xd, segment_id, ref_costs_single, ref_costs_comp,
2543 &comp_mode_p);
2544
2545 for (i = 0; i < REFERENCE_MODES; ++i)
2546 best_pred_rd[i] = INT64_MAX;
2547 for (i = 0; i < TX_MODES; i++)
2548 best_tx_rd[i] = INT64_MAX;
2549 for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++)
2550 best_filter_rd[i] = INT64_MAX;
2551 for (i = 0; i < TX_SIZES; i++)
2552 rate_uv_intra[i] = INT_MAX;
2553 for (i = 0; i < MAX_REF_FRAMES; ++i)
2554 x->pred_sse[i] = INT_MAX;
2555
2556 *returnrate = INT_MAX;
2557
2558 for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ++ref_frame) {
2559 x->pred_mv_sad[ref_frame] = INT_MAX;
2560 if (cpi->ref_frame_flags & flag_list[ref_frame]) {
2561 setup_buffer_inter(cpi, x, tile, ref_frame, bsize, mi_row, mi_col,
2562 frame_mv[NEARESTMV], frame_mv[NEARMV], yv12_mb);
2563 }
2564 frame_mv[NEWMV][ref_frame].as_int = INVALID_MV;
2565 frame_mv[ZEROMV][ref_frame].as_int = 0;
2566 }
2567
2568 for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ++ref_frame) {
2569 // All modes from vp9_mode_order that use this frame as any ref
2570 static const int ref_frame_mask_all[] = {
2571 0x0, 0x123291, 0x25c444, 0x39b722
2572 };
2573 // Fixed mv modes (NEARESTMV, NEARMV, ZEROMV) from vp9_mode_order that use
2574 // this frame as their primary ref
2575 static const int ref_frame_mask_fixedmv[] = {
2576 0x0, 0x121281, 0x24c404, 0x080102
2577 };
2578 if (!(cpi->ref_frame_flags & flag_list[ref_frame])) {
2579 // Skip modes for missing references
2580 mode_skip_mask |= ref_frame_mask_all[ref_frame];
2581 } else if (cpi->sf.reference_masking) {
2582 for (i = LAST_FRAME; i <= ALTREF_FRAME; ++i) {
2583 // Skip fixed mv modes for poor references
2584 if ((x->pred_mv_sad[ref_frame] >> 2) > x->pred_mv_sad[i]) {
2585 mode_skip_mask |= ref_frame_mask_fixedmv[ref_frame];
2586 break;
2587 }
2588 }
2589 }
2590 // If the segment reference frame feature is enabled....
2591 // then do nothing if the current ref frame is not allowed..
2592 if (vp9_segfeature_active(seg, segment_id, SEG_LVL_REF_FRAME) &&
2593 vp9_get_segdata(seg, segment_id, SEG_LVL_REF_FRAME) != (int)ref_frame) {
2594 mode_skip_mask |= ref_frame_mask_all[ref_frame];
2595 }
2596 }
2597
2598 // Disable this drop out case if the ref frame
2599 // segment level feature is enabled for this segment. This is to
2600 // prevent the possibility that we end up unable to pick any mode.
2601 if (!vp9_segfeature_active(seg, segment_id, SEG_LVL_REF_FRAME)) {
2602 // Only consider ZEROMV/ALTREF_FRAME for alt ref frame,
2603 // unless ARNR filtering is enabled in which case we want
2604 // an unfiltered alternative. We allow near/nearest as well
2605 // because they may result in zero-zero MVs but be cheaper.
2606 if (cpi->rc.is_src_frame_alt_ref && (cpi->oxcf.arnr_max_frames == 0)) {
2607 mode_skip_mask =
2608 ~((1 << THR_NEARESTA) | (1 << THR_NEARA) | (1 << THR_ZEROA));
2609 if (frame_mv[NEARMV][ALTREF_FRAME].as_int != 0)
2610 mode_skip_mask |= (1 << THR_NEARA);
2611 if (frame_mv[NEARESTMV][ALTREF_FRAME].as_int != 0)
2612 mode_skip_mask |= (1 << THR_NEARESTA);
2613 }
2614 }
2615
2616 // TODO(JBB): This is to make up for the fact that we don't have sad
2617 // functions that work when the block size reads outside the umv. We
2618 // should fix this either by making the motion search just work on
2619 // a representative block in the boundary ( first ) and then implement a
2620 // function that does sads when inside the border..
2621 if ((mi_row + bhs) > cm->mi_rows || (mi_col + bws) > cm->mi_cols) {
2622 const int new_modes_mask =
2623 (1 << THR_NEWMV) | (1 << THR_NEWG) | (1 << THR_NEWA) |
2624 (1 << THR_COMP_NEWLA) | (1 << THR_COMP_NEWGA);
2625 mode_skip_mask |= new_modes_mask;
2626 }
2627
2628 if (bsize > cpi->sf.max_intra_bsize) {
2629 const int all_intra_modes = (1 << THR_DC) | (1 << THR_TM) |
2630 (1 << THR_H_PRED) | (1 << THR_V_PRED) | (1 << THR_D135_PRED) |
2631 (1 << THR_D207_PRED) | (1 << THR_D153_PRED) | (1 << THR_D63_PRED) |
2632 (1 << THR_D117_PRED) | (1 << THR_D45_PRED);
2633 mode_skip_mask |= all_intra_modes;
2634 }
2635
2636 for (mode_index = 0; mode_index < MAX_MODES; ++mode_index) {
2637 int mode_excluded = 0;
2638 int64_t this_rd = INT64_MAX;
2639 int disable_skip = 0;
2640 int compmode_cost = 0;
2641 int rate2 = 0, rate_y = 0, rate_uv = 0;
2642 int64_t distortion2 = 0, distortion_y = 0, distortion_uv = 0;
2643 int skippable = 0;
2644 int64_t tx_cache[TX_MODES];
2645 int i;
2646 int this_skip2 = 0;
2647 int64_t total_sse = INT64_MAX;
2648 int early_term = 0;
2649
2650 // Look at the reference frame of the best mode so far and set the
2651 // skip mask to look at a subset of the remaining modes.
2652 if (mode_index == mode_skip_start && best_mode_index >= 0) {
2653 switch (vp9_mode_order[best_mode_index].ref_frame[0]) {
2654 case INTRA_FRAME:
2655 break;
2656 case LAST_FRAME:
2657 mode_skip_mask |= LAST_FRAME_MODE_MASK;
2658 break;
2659 case GOLDEN_FRAME:
2660 mode_skip_mask |= GOLDEN_FRAME_MODE_MASK;
2661 break;
2662 case ALTREF_FRAME:
2663 mode_skip_mask |= ALT_REF_MODE_MASK;
2664 break;
2665 case NONE:
2666 case MAX_REF_FRAMES:
2667 assert(0 && "Invalid Reference frame");
2668 break;
2669 }
2670 }
2671 if (mode_skip_mask & (1 << mode_index))
2672 continue;
2673
2674 // Test best rd so far against threshold for trying this mode.
2675 if (rd_less_than_thresh(best_rd, rd_threshes[mode_index],
2676 rd_thresh_freq_fact[mode_index]))
2677 continue;
2678
2679 this_mode = vp9_mode_order[mode_index].mode;
2680 ref_frame = vp9_mode_order[mode_index].ref_frame[0];
2681 if (ref_frame != INTRA_FRAME && !(inter_mode_mask & (1 << this_mode)))
2682 continue;
2683 second_ref_frame = vp9_mode_order[mode_index].ref_frame[1];
2684
2685 if (cpi->sf.motion_field_mode_search) {
2686 const int mi_width = MIN(num_8x8_blocks_wide_lookup[bsize],
2687 tile->mi_col_end - mi_col);
2688 const int mi_height = MIN(num_8x8_blocks_high_lookup[bsize],
2689 tile->mi_row_end - mi_row);
2690 const int bsl = mi_width_log2(bsize);
2691 int cb_partition_search_ctrl = (((mi_row + mi_col) >> bsl)
2692 + get_chessboard_index(cm->current_video_frame)) & 0x1;
2693 MB_MODE_INFO *ref_mbmi;
2694 int const_motion = 1;
2695 int skip_ref_frame = !cb_partition_search_ctrl;
2696 MV_REFERENCE_FRAME rf = NONE;
2697 int_mv ref_mv;
2698 ref_mv.as_int = INVALID_MV;
2699
2700 if ((mi_row - 1) >= tile->mi_row_start) {
2701 ref_mv = xd->mi[-xd->mi_stride]->mbmi.mv[0];
2702 rf = xd->mi[-xd->mi_stride]->mbmi.ref_frame[0];
2703 for (i = 0; i < mi_width; ++i) {
2704 ref_mbmi = &xd->mi[-xd->mi_stride + i]->mbmi;
2705 const_motion &= (ref_mv.as_int == ref_mbmi->mv[0].as_int) &&
2706 (ref_frame == ref_mbmi->ref_frame[0]);
2707 skip_ref_frame &= (rf == ref_mbmi->ref_frame[0]);
2708 }
2709 }
2710
2711 if ((mi_col - 1) >= tile->mi_col_start) {
2712 if (ref_mv.as_int == INVALID_MV)
2713 ref_mv = xd->mi[-1]->mbmi.mv[0];
2714 if (rf == NONE)
2715 rf = xd->mi[-1]->mbmi.ref_frame[0];
2716 for (i = 0; i < mi_height; ++i) {
2717 ref_mbmi = &xd->mi[i * xd->mi_stride - 1]->mbmi;
2718 const_motion &= (ref_mv.as_int == ref_mbmi->mv[0].as_int) &&
2719 (ref_frame == ref_mbmi->ref_frame[0]);
2720 skip_ref_frame &= (rf == ref_mbmi->ref_frame[0]);
2721 }
2722 }
2723
2724 if (skip_ref_frame && this_mode != NEARESTMV && this_mode != NEWMV)
2725 if (rf > INTRA_FRAME)
2726 if (ref_frame != rf)
2727 continue;
2728
2729 if (const_motion)
2730 if (this_mode == NEARMV || this_mode == ZEROMV)
2731 continue;
2732 }
2733
2734 comp_pred = second_ref_frame > INTRA_FRAME;
2735 if (comp_pred) {
2736 if ((mode_search_skip_flags & FLAG_SKIP_COMP_BESTINTRA) &&
2737 best_mode_index >=0 &&
2738 vp9_mode_order[best_mode_index].ref_frame[0] == INTRA_FRAME)
2739 continue;
2740 if ((mode_search_skip_flags & FLAG_SKIP_COMP_REFMISMATCH) &&
2741 ref_frame != best_inter_ref_frame &&
2742 second_ref_frame != best_inter_ref_frame)
2743 continue;
2744 mode_excluded = cm->reference_mode == SINGLE_REFERENCE;
2745 } else {
2746 if (ref_frame != INTRA_FRAME)
2747 mode_excluded = cm->reference_mode == COMPOUND_REFERENCE;
2748 }
2749
2750 if (ref_frame == INTRA_FRAME) {
2751 if (!(intra_y_mode_mask & (1 << this_mode)))
2752 continue;
2753 if (this_mode != DC_PRED) {
2754 // Disable intra modes other than DC_PRED for blocks with low variance
2755 // Threshold for intra skipping based on source variance
2756 // TODO(debargha): Specialize the threshold for super block sizes
2757 const unsigned int skip_intra_var_thresh = 64;
2758 if ((mode_search_skip_flags & FLAG_SKIP_INTRA_LOWVAR) &&
2759 x->source_variance < skip_intra_var_thresh)
2760 continue;
2761 // Only search the oblique modes if the best so far is
2762 // one of the neighboring directional modes
2763 if ((mode_search_skip_flags & FLAG_SKIP_INTRA_BESTINTER) &&
2764 (this_mode >= D45_PRED && this_mode <= TM_PRED)) {
2765 if (best_mode_index >= 0 &&
2766 vp9_mode_order[best_mode_index].ref_frame[0] > INTRA_FRAME)
2767 continue;
2768 }
2769 if (mode_search_skip_flags & FLAG_SKIP_INTRA_DIRMISMATCH) {
2770 if (conditional_skipintra(this_mode, best_intra_mode))
2771 continue;
2772 }
2773 }
2774 } else {
2775 const MV_REFERENCE_FRAME ref_frames[2] = {ref_frame, second_ref_frame};
2776 if (!check_best_zero_mv(cpi, mbmi->mode_context, frame_mv,
2777 inter_mode_mask, this_mode, ref_frames))
2778 continue;
2779 }
2780
2781 mbmi->mode = this_mode;
2782 mbmi->uv_mode = DC_PRED;
2783 mbmi->ref_frame[0] = ref_frame;
2784 mbmi->ref_frame[1] = second_ref_frame;
2785 // Evaluate all sub-pel filters irrespective of whether we can use
2786 // them for this frame.
2787 mbmi->interp_filter = cm->interp_filter == SWITCHABLE ? EIGHTTAP
2788 : cm->interp_filter;
2789 x->skip = 0;
2790 set_ref_ptrs(cm, xd, ref_frame, second_ref_frame);
2791
2792 // Select prediction reference frames.
2793 for (i = 0; i < MAX_MB_PLANE; i++) {
2794 xd->plane[i].pre[0] = yv12_mb[ref_frame][i];
2795 if (comp_pred)
2796 xd->plane[i].pre[1] = yv12_mb[second_ref_frame][i];
2797 }
2798
2799 for (i = 0; i < TX_MODES; ++i)
2800 tx_cache[i] = INT64_MAX;
2801
2802 if (ref_frame == INTRA_FRAME) {
2803 TX_SIZE uv_tx;
2804 intra_super_block_yrd(cpi, x, &rate_y, &distortion_y, &skippable,
2805 bsize, tx_cache, best_rd);
2806
2807 if (rate_y == INT_MAX)
2808 continue;
2809
2810 uv_tx = get_uv_tx_size_impl(mbmi->tx_size, bsize, pd[1].subsampling_x,
2811 pd[1].subsampling_y);
2812 if (rate_uv_intra[uv_tx] == INT_MAX) {
2813 choose_intra_uv_mode(cpi, ctx, bsize, uv_tx,
2814 &rate_uv_intra[uv_tx], &rate_uv_tokenonly[uv_tx],
2815 &dist_uv[uv_tx], &skip_uv[uv_tx], &mode_uv[uv_tx]);
2816 }
2817
2818 rate_uv = rate_uv_tokenonly[uv_tx];
2819 distortion_uv = dist_uv[uv_tx];
2820 skippable = skippable && skip_uv[uv_tx];
2821 mbmi->uv_mode = mode_uv[uv_tx];
2822
2823 rate2 = rate_y + cpi->mbmode_cost[mbmi->mode] + rate_uv_intra[uv_tx];
2824 if (this_mode != DC_PRED && this_mode != TM_PRED)
2825 rate2 += intra_cost_penalty;
2826 distortion2 = distortion_y + distortion_uv;
2827 } else {
2828 this_rd = handle_inter_mode(cpi, x, bsize,
2829 tx_cache,
2830 &rate2, &distortion2, &skippable,
2831 &rate_y, &distortion_y,
2832 &rate_uv, &distortion_uv,
2833 &disable_skip, frame_mv,
2834 mi_row, mi_col,
2835 single_newmv, &total_sse, best_rd);
2836 if (this_rd == INT64_MAX)
2837 continue;
2838
2839 compmode_cost = vp9_cost_bit(comp_mode_p, comp_pred);
2840
2841 if (cm->reference_mode == REFERENCE_MODE_SELECT)
2842 rate2 += compmode_cost;
2843 }
2844
2845 // Estimate the reference frame signaling cost and add it
2846 // to the rolling cost variable.
2847 if (comp_pred) {
2848 rate2 += ref_costs_comp[ref_frame];
2849 } else {
2850 rate2 += ref_costs_single[ref_frame];
2851 }
2852
2853 if (!disable_skip) {
2854 if (skippable) {
2855 vp9_prob skip_prob = vp9_get_skip_prob(cm, xd);
2856
2857 // Back out the coefficient coding costs
2858 rate2 -= (rate_y + rate_uv);
2859 // for best yrd calculation
2860 rate_uv = 0;
2861
2862 // Cost the skip mb case
2863 if (skip_prob) {
2864 int prob_skip_cost = vp9_cost_bit(skip_prob, 1);
2865 rate2 += prob_skip_cost;
2866 }
2867 } else if (ref_frame != INTRA_FRAME && !xd->lossless) {
2868 if (RDCOST(x->rdmult, x->rddiv, rate_y + rate_uv, distortion2) <
2869 RDCOST(x->rdmult, x->rddiv, 0, total_sse)) {
2870 // Add in the cost of the no skip flag.
2871 rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0);
2872 } else {
2873 // FIXME(rbultje) make this work for splitmv also
2874 rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1);
2875 distortion2 = total_sse;
2876 assert(total_sse >= 0);
2877 rate2 -= (rate_y + rate_uv);
2878 rate_y = 0;
2879 rate_uv = 0;
2880 this_skip2 = 1;
2881 }
2882 } else {
2883 // Add in the cost of the no skip flag.
2884 rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0);
2885 }
2886
2887 // Calculate the final RD estimate for this mode.
2888 this_rd = RDCOST(x->rdmult, x->rddiv, rate2, distortion2);
2889 }
2890
2891 if (ref_frame == INTRA_FRAME) {
2892 // Keep record of best intra rd
2893 if (this_rd < best_intra_rd) {
2894 best_intra_rd = this_rd;
2895 best_intra_mode = mbmi->mode;
2896 }
2897 } else {
2898 // Keep record of best inter rd with single reference
2899 if (!comp_pred && !mode_excluded && this_rd < best_inter_rd) {
2900 best_inter_rd = this_rd;
2901 best_inter_ref_frame = ref_frame;
2902 }
2903 }
2904
2905 if (!disable_skip && ref_frame == INTRA_FRAME) {
2906 for (i = 0; i < REFERENCE_MODES; ++i)
2907 best_pred_rd[i] = MIN(best_pred_rd[i], this_rd);
2908 for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++)
2909 best_filter_rd[i] = MIN(best_filter_rd[i], this_rd);
2910 }
2911
2912 // Store the respective mode distortions for later use.
2913 if (mode_distortions[this_mode] == -1
2914 || distortion2 < mode_distortions[this_mode]) {
2915 mode_distortions[this_mode] = distortion2;
2916 }
2917
2918 // Did this mode help.. i.e. is it the new best mode
2919 if (this_rd < best_rd || x->skip) {
2920 int max_plane = MAX_MB_PLANE;
2921 if (!mode_excluded) {
2922 // Note index of best mode so far
2923 best_mode_index = mode_index;
2924
2925 if (ref_frame == INTRA_FRAME) {
2926 /* required for left and above block mv */
2927 mbmi->mv[0].as_int = 0;
2928 max_plane = 1;
2929 }
2930
2931 *returnrate = rate2;
2932 *returndistortion = distortion2;
2933 best_rd = this_rd;
2934 best_mbmode = *mbmi;
2935 best_skip2 = this_skip2;
2936 if (!x->select_tx_size)
2937 swap_block_ptr(x, ctx, 1, 0, 0, max_plane);
2938 vpx_memcpy(ctx->zcoeff_blk, x->zcoeff_blk[mbmi->tx_size],
2939 sizeof(uint8_t) * ctx->num_4x4_blk);
2940
2941 // TODO(debargha): enhance this test with a better distortion prediction
2942 // based on qp, activity mask and history
2943 if ((mode_search_skip_flags & FLAG_EARLY_TERMINATE) &&
2944 (mode_index > MIN_EARLY_TERM_INDEX)) {
2945 const int qstep = xd->plane[0].dequant[1];
2946 // TODO(debargha): Enhance this by specializing for each mode_index
2947 int scale = 4;
2948 if (x->source_variance < UINT_MAX) {
2949 const int var_adjust = (x->source_variance < 16);
2950 scale -= var_adjust;
2951 }
2952 if (ref_frame > INTRA_FRAME &&
2953 distortion2 * scale < qstep * qstep) {
2954 early_term = 1;
2955 }
2956 }
2957 }
2958 }
2959
2960 /* keep record of best compound/single-only prediction */
2961 if (!disable_skip && ref_frame != INTRA_FRAME) {
2962 int64_t single_rd, hybrid_rd, single_rate, hybrid_rate;
2963
2964 if (cm->reference_mode == REFERENCE_MODE_SELECT) {
2965 single_rate = rate2 - compmode_cost;
2966 hybrid_rate = rate2;
2967 } else {
2968 single_rate = rate2;
2969 hybrid_rate = rate2 + compmode_cost;
2970 }
2971
2972 single_rd = RDCOST(x->rdmult, x->rddiv, single_rate, distortion2);
2973 hybrid_rd = RDCOST(x->rdmult, x->rddiv, hybrid_rate, distortion2);
2974
2975 if (!comp_pred) {
2976 if (single_rd < best_pred_rd[SINGLE_REFERENCE]) {
2977 best_pred_rd[SINGLE_REFERENCE] = single_rd;
2978 }
2979 } else {
2980 if (single_rd < best_pred_rd[COMPOUND_REFERENCE]) {
2981 best_pred_rd[COMPOUND_REFERENCE] = single_rd;
2982 }
2983 }
2984 if (hybrid_rd < best_pred_rd[REFERENCE_MODE_SELECT])
2985 best_pred_rd[REFERENCE_MODE_SELECT] = hybrid_rd;
2986
2987 /* keep record of best filter type */
2988 if (!mode_excluded && cm->interp_filter != BILINEAR) {
2989 int64_t ref = rd_opt->filter_cache[cm->interp_filter == SWITCHABLE ?
2990 SWITCHABLE_FILTERS : cm->interp_filter];
2991
2992 for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++) {
2993 int64_t adj_rd;
2994 if (ref == INT64_MAX)
2995 adj_rd = 0;
2996 else if (rd_opt->filter_cache[i] == INT64_MAX)
2997 // when early termination is triggered, the encoder does not have
2998 // access to the rate-distortion cost. it only knows that the cost
2999 // should be above the maximum valid value. hence it takes the known
3000 // maximum plus an arbitrary constant as the rate-distortion cost.
3001 adj_rd = rd_opt->mask_filter - ref + 10;
3002 else
3003 adj_rd = rd_opt->filter_cache[i] - ref;
3004
3005 adj_rd += this_rd;
3006 best_filter_rd[i] = MIN(best_filter_rd[i], adj_rd);
3007 }
3008 }
3009 }
3010
3011 /* keep record of best txfm size */
3012 if (bsize < BLOCK_32X32) {
3013 if (bsize < BLOCK_16X16)
3014 tx_cache[ALLOW_16X16] = tx_cache[ALLOW_8X8];
3015
3016 tx_cache[ALLOW_32X32] = tx_cache[ALLOW_16X16];
3017 }
3018 if (!mode_excluded && this_rd != INT64_MAX) {
3019 for (i = 0; i < TX_MODES && tx_cache[i] < INT64_MAX; i++) {
3020 int64_t adj_rd = INT64_MAX;
3021 adj_rd = this_rd + tx_cache[i] - tx_cache[cm->tx_mode];
3022
3023 if (adj_rd < best_tx_rd[i])
3024 best_tx_rd[i] = adj_rd;
3025 }
3026 }
3027
3028 if (early_term)
3029 break;
3030
3031 if (x->skip && !comp_pred)
3032 break;
3033 }
3034
3035 if (best_mode_index < 0 || best_rd >= best_rd_so_far)
3036 return INT64_MAX;
3037
3038 // If we used an estimate for the uv intra rd in the loop above...
3039 if (cpi->sf.use_uv_intra_rd_estimate) {
3040 // Do Intra UV best rd mode selection if best mode choice above was intra.
3041 if (vp9_mode_order[best_mode_index].ref_frame[0] == INTRA_FRAME) {
3042 TX_SIZE uv_tx_size;
3043 *mbmi = best_mbmode;
3044 uv_tx_size = get_uv_tx_size(mbmi, &xd->plane[1]);
3045 rd_pick_intra_sbuv_mode(cpi, x, ctx, &rate_uv_intra[uv_tx_size],
3046 &rate_uv_tokenonly[uv_tx_size],
3047 &dist_uv[uv_tx_size],
3048 &skip_uv[uv_tx_size],
3049 bsize < BLOCK_8X8 ? BLOCK_8X8 : bsize,
3050 uv_tx_size);
3051 }
3052 }
3053
3054 assert((cm->interp_filter == SWITCHABLE) ||
3055 (cm->interp_filter == best_mbmode.interp_filter) ||
3056 !is_inter_block(&best_mbmode));
3057
3058 update_rd_thresh_fact(cpi, bsize, best_mode_index);
3059
3060 // macroblock modes
3061 *mbmi = best_mbmode;
3062 x->skip |= best_skip2;
3063
3064 for (i = 0; i < REFERENCE_MODES; ++i) {
3065 if (best_pred_rd[i] == INT64_MAX)
3066 best_pred_diff[i] = INT_MIN;
3067 else
3068 best_pred_diff[i] = best_rd - best_pred_rd[i];
3069 }
3070
3071 if (!x->skip) {
3072 for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++) {
3073 if (best_filter_rd[i] == INT64_MAX)
3074 best_filter_diff[i] = 0;
3075 else
3076 best_filter_diff[i] = best_rd - best_filter_rd[i];
3077 }
3078 if (cm->interp_filter == SWITCHABLE)
3079 assert(best_filter_diff[SWITCHABLE_FILTERS] == 0);
3080 for (i = 0; i < TX_MODES; i++) {
3081 if (best_tx_rd[i] == INT64_MAX)
3082 best_tx_diff[i] = 0;
3083 else
3084 best_tx_diff[i] = best_rd - best_tx_rd[i];
3085 }
3086 } else {
3087 vp9_zero(best_filter_diff);
3088 vp9_zero(best_tx_diff);
3089 }
3090
3091 set_ref_ptrs(cm, xd, mbmi->ref_frame[0], mbmi->ref_frame[1]);
3092 store_coding_context(x, ctx, best_mode_index,
3093 best_pred_diff, best_tx_diff, best_filter_diff);
3094
3095 return best_rd;
3096 }
3097
vp9_rd_pick_inter_mode_sb_seg_skip(VP9_COMP * cpi,MACROBLOCK * x,int * returnrate,int64_t * returndistortion,BLOCK_SIZE bsize,PICK_MODE_CONTEXT * ctx,int64_t best_rd_so_far)3098 int64_t vp9_rd_pick_inter_mode_sb_seg_skip(VP9_COMP *cpi, MACROBLOCK *x,
3099 int *returnrate,
3100 int64_t *returndistortion,
3101 BLOCK_SIZE bsize,
3102 PICK_MODE_CONTEXT *ctx,
3103 int64_t best_rd_so_far) {
3104 VP9_COMMON *const cm = &cpi->common;
3105 RD_OPT *const rd_opt = &cpi->rd;
3106 MACROBLOCKD *const xd = &x->e_mbd;
3107 MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
3108 unsigned char segment_id = mbmi->segment_id;
3109 const int comp_pred = 0;
3110 int i;
3111 int64_t best_tx_diff[TX_MODES];
3112 int64_t best_pred_diff[REFERENCE_MODES];
3113 int64_t best_filter_diff[SWITCHABLE_FILTER_CONTEXTS];
3114 unsigned int ref_costs_single[MAX_REF_FRAMES], ref_costs_comp[MAX_REF_FRAMES];
3115 vp9_prob comp_mode_p;
3116 INTERP_FILTER best_filter = SWITCHABLE;
3117 int64_t this_rd = INT64_MAX;
3118 int rate2 = 0;
3119 const int64_t distortion2 = 0;
3120
3121 x->skip_encode = cpi->sf.skip_encode_frame && x->q_index < QIDX_SKIP_THRESH;
3122
3123 estimate_ref_frame_costs(cm, xd, segment_id, ref_costs_single, ref_costs_comp,
3124 &comp_mode_p);
3125
3126 for (i = 0; i < MAX_REF_FRAMES; ++i)
3127 x->pred_sse[i] = INT_MAX;
3128 for (i = LAST_FRAME; i < MAX_REF_FRAMES; ++i)
3129 x->pred_mv_sad[i] = INT_MAX;
3130
3131 *returnrate = INT_MAX;
3132
3133 assert(vp9_segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP));
3134
3135 mbmi->mode = ZEROMV;
3136 mbmi->uv_mode = DC_PRED;
3137 mbmi->ref_frame[0] = LAST_FRAME;
3138 mbmi->ref_frame[1] = NONE;
3139 mbmi->mv[0].as_int = 0;
3140 x->skip = 1;
3141
3142 // Search for best switchable filter by checking the variance of
3143 // pred error irrespective of whether the filter will be used
3144 rd_opt->mask_filter = 0;
3145 for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i)
3146 rd_opt->filter_cache[i] = INT64_MAX;
3147
3148 if (cm->interp_filter != BILINEAR) {
3149 best_filter = EIGHTTAP;
3150 if (cm->interp_filter == SWITCHABLE &&
3151 x->source_variance >= cpi->sf.disable_filter_search_var_thresh) {
3152 int rs;
3153 int best_rs = INT_MAX;
3154 for (i = 0; i < SWITCHABLE_FILTERS; ++i) {
3155 mbmi->interp_filter = i;
3156 rs = vp9_get_switchable_rate(cpi);
3157 if (rs < best_rs) {
3158 best_rs = rs;
3159 best_filter = mbmi->interp_filter;
3160 }
3161 }
3162 }
3163 }
3164 // Set the appropriate filter
3165 if (cm->interp_filter == SWITCHABLE) {
3166 mbmi->interp_filter = best_filter;
3167 rate2 += vp9_get_switchable_rate(cpi);
3168 } else {
3169 mbmi->interp_filter = cm->interp_filter;
3170 }
3171
3172 if (cm->reference_mode == REFERENCE_MODE_SELECT)
3173 rate2 += vp9_cost_bit(comp_mode_p, comp_pred);
3174
3175 // Estimate the reference frame signaling cost and add it
3176 // to the rolling cost variable.
3177 rate2 += ref_costs_single[LAST_FRAME];
3178 this_rd = RDCOST(x->rdmult, x->rddiv, rate2, distortion2);
3179
3180 *returnrate = rate2;
3181 *returndistortion = distortion2;
3182
3183 if (this_rd >= best_rd_so_far)
3184 return INT64_MAX;
3185
3186 assert((cm->interp_filter == SWITCHABLE) ||
3187 (cm->interp_filter == mbmi->interp_filter));
3188
3189 update_rd_thresh_fact(cpi, bsize, THR_ZEROMV);
3190
3191 vp9_zero(best_pred_diff);
3192 vp9_zero(best_filter_diff);
3193 vp9_zero(best_tx_diff);
3194
3195 if (!x->select_tx_size)
3196 swap_block_ptr(x, ctx, 1, 0, 0, MAX_MB_PLANE);
3197 store_coding_context(x, ctx, THR_ZEROMV,
3198 best_pred_diff, best_tx_diff, best_filter_diff);
3199
3200 return this_rd;
3201 }
3202
vp9_rd_pick_inter_mode_sub8x8(VP9_COMP * cpi,MACROBLOCK * x,const TileInfo * const tile,int mi_row,int mi_col,int * returnrate,int64_t * returndistortion,BLOCK_SIZE bsize,PICK_MODE_CONTEXT * ctx,int64_t best_rd_so_far)3203 int64_t vp9_rd_pick_inter_mode_sub8x8(VP9_COMP *cpi, MACROBLOCK *x,
3204 const TileInfo *const tile,
3205 int mi_row, int mi_col,
3206 int *returnrate,
3207 int64_t *returndistortion,
3208 BLOCK_SIZE bsize,
3209 PICK_MODE_CONTEXT *ctx,
3210 int64_t best_rd_so_far) {
3211 VP9_COMMON *const cm = &cpi->common;
3212 RD_OPT *const rd_opt = &cpi->rd;
3213 MACROBLOCKD *const xd = &x->e_mbd;
3214 MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
3215 const struct segmentation *const seg = &cm->seg;
3216 MV_REFERENCE_FRAME ref_frame, second_ref_frame;
3217 unsigned char segment_id = mbmi->segment_id;
3218 int comp_pred, i;
3219 int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES];
3220 struct buf_2d yv12_mb[4][MAX_MB_PLANE];
3221 static const int flag_list[4] = { 0, VP9_LAST_FLAG, VP9_GOLD_FLAG,
3222 VP9_ALT_FLAG };
3223 int64_t best_rd = best_rd_so_far;
3224 int64_t best_yrd = best_rd_so_far; // FIXME(rbultje) more precise
3225 static const int64_t best_tx_diff[TX_MODES] = { 0 };
3226 int64_t best_pred_diff[REFERENCE_MODES];
3227 int64_t best_pred_rd[REFERENCE_MODES];
3228 int64_t best_filter_rd[SWITCHABLE_FILTER_CONTEXTS];
3229 int64_t best_filter_diff[SWITCHABLE_FILTER_CONTEXTS];
3230 MB_MODE_INFO best_mbmode;
3231 int ref_index, best_ref_index = 0;
3232 unsigned int ref_costs_single[MAX_REF_FRAMES], ref_costs_comp[MAX_REF_FRAMES];
3233 vp9_prob comp_mode_p;
3234 int64_t best_inter_rd = INT64_MAX;
3235 MV_REFERENCE_FRAME best_inter_ref_frame = LAST_FRAME;
3236 INTERP_FILTER tmp_best_filter = SWITCHABLE;
3237 int rate_uv_intra, rate_uv_tokenonly;
3238 int64_t dist_uv;
3239 int skip_uv;
3240 PREDICTION_MODE mode_uv = DC_PRED;
3241 int intra_cost_penalty = 20 * vp9_dc_quant(cm->base_qindex, cm->y_dc_delta_q);
3242 int_mv seg_mvs[4][MAX_REF_FRAMES];
3243 b_mode_info best_bmodes[4];
3244 int best_skip2 = 0;
3245 int mode_skip_mask = 0;
3246
3247 x->skip_encode = cpi->sf.skip_encode_frame && x->q_index < QIDX_SKIP_THRESH;
3248 vpx_memset(x->zcoeff_blk[TX_4X4], 0, 4);
3249 vp9_zero(best_mbmode);
3250
3251 for (i = 0; i < 4; i++) {
3252 int j;
3253 for (j = 0; j < MAX_REF_FRAMES; j++)
3254 seg_mvs[i][j].as_int = INVALID_MV;
3255 }
3256
3257 estimate_ref_frame_costs(cm, xd, segment_id, ref_costs_single, ref_costs_comp,
3258 &comp_mode_p);
3259
3260 for (i = 0; i < REFERENCE_MODES; ++i)
3261 best_pred_rd[i] = INT64_MAX;
3262 for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++)
3263 best_filter_rd[i] = INT64_MAX;
3264 rate_uv_intra = INT_MAX;
3265
3266 *returnrate = INT_MAX;
3267
3268 for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ref_frame++) {
3269 if (cpi->ref_frame_flags & flag_list[ref_frame]) {
3270 setup_buffer_inter(cpi, x, tile,
3271 ref_frame, bsize, mi_row, mi_col,
3272 frame_mv[NEARESTMV], frame_mv[NEARMV],
3273 yv12_mb);
3274 }
3275 frame_mv[NEWMV][ref_frame].as_int = INVALID_MV;
3276 frame_mv[ZEROMV][ref_frame].as_int = 0;
3277 }
3278
3279 for (ref_index = 0; ref_index < MAX_REFS; ++ref_index) {
3280 int mode_excluded = 0;
3281 int64_t this_rd = INT64_MAX;
3282 int disable_skip = 0;
3283 int compmode_cost = 0;
3284 int rate2 = 0, rate_y = 0, rate_uv = 0;
3285 int64_t distortion2 = 0, distortion_y = 0, distortion_uv = 0;
3286 int skippable = 0;
3287 int i;
3288 int this_skip2 = 0;
3289 int64_t total_sse = INT_MAX;
3290 int early_term = 0;
3291
3292 ref_frame = vp9_ref_order[ref_index].ref_frame[0];
3293 second_ref_frame = vp9_ref_order[ref_index].ref_frame[1];
3294
3295 // Look at the reference frame of the best mode so far and set the
3296 // skip mask to look at a subset of the remaining modes.
3297 if (ref_index > 2 && cpi->sf.mode_skip_start < MAX_MODES) {
3298 if (ref_index == 3) {
3299 switch (vp9_ref_order[best_ref_index].ref_frame[0]) {
3300 case INTRA_FRAME:
3301 mode_skip_mask = 0;
3302 break;
3303 case LAST_FRAME:
3304 mode_skip_mask = 0x0010;
3305 break;
3306 case GOLDEN_FRAME:
3307 mode_skip_mask = 0x0008;
3308 break;
3309 case ALTREF_FRAME:
3310 mode_skip_mask = 0x0000;
3311 break;
3312 case NONE:
3313 case MAX_REF_FRAMES:
3314 assert(0 && "Invalid Reference frame");
3315 break;
3316 }
3317 }
3318 if (mode_skip_mask & (1 << ref_index))
3319 continue;
3320 }
3321
3322 // Test best rd so far against threshold for trying this mode.
3323 if (rd_less_than_thresh(best_rd,
3324 rd_opt->threshes[segment_id][bsize][ref_index],
3325 rd_opt->thresh_freq_fact[bsize][ref_index]))
3326 continue;
3327
3328 if (ref_frame > INTRA_FRAME &&
3329 !(cpi->ref_frame_flags & flag_list[ref_frame])) {
3330 continue;
3331 }
3332
3333 comp_pred = second_ref_frame > INTRA_FRAME;
3334 if (comp_pred) {
3335 if (!(cpi->ref_frame_flags & flag_list[second_ref_frame]))
3336 continue;
3337 // Do not allow compound prediction if the segment level reference frame
3338 // feature is in use as in this case there can only be one reference.
3339 if (vp9_segfeature_active(seg, segment_id, SEG_LVL_REF_FRAME))
3340 continue;
3341 if ((cpi->sf.mode_search_skip_flags & FLAG_SKIP_COMP_BESTINTRA) &&
3342 vp9_ref_order[best_ref_index].ref_frame[0] == INTRA_FRAME)
3343 continue;
3344 if ((cpi->sf.mode_search_skip_flags & FLAG_SKIP_COMP_REFMISMATCH) &&
3345 ref_frame != best_inter_ref_frame &&
3346 second_ref_frame != best_inter_ref_frame)
3347 continue;
3348 }
3349
3350 // TODO(jingning, jkoleszar): scaling reference frame not supported for
3351 // sub8x8 blocks.
3352 if (ref_frame > INTRA_FRAME &&
3353 vp9_is_scaled(&cm->frame_refs[ref_frame - 1].sf))
3354 continue;
3355
3356 if (second_ref_frame > INTRA_FRAME &&
3357 vp9_is_scaled(&cm->frame_refs[second_ref_frame - 1].sf))
3358 continue;
3359
3360 if (comp_pred)
3361 mode_excluded = cm->reference_mode == SINGLE_REFERENCE;
3362 else if (ref_frame != INTRA_FRAME)
3363 mode_excluded = cm->reference_mode == COMPOUND_REFERENCE;
3364
3365 // If the segment reference frame feature is enabled....
3366 // then do nothing if the current ref frame is not allowed..
3367 if (vp9_segfeature_active(seg, segment_id, SEG_LVL_REF_FRAME) &&
3368 vp9_get_segdata(seg, segment_id, SEG_LVL_REF_FRAME) !=
3369 (int)ref_frame) {
3370 continue;
3371 // Disable this drop out case if the ref frame
3372 // segment level feature is enabled for this segment. This is to
3373 // prevent the possibility that we end up unable to pick any mode.
3374 } else if (!vp9_segfeature_active(seg, segment_id,
3375 SEG_LVL_REF_FRAME)) {
3376 // Only consider ZEROMV/ALTREF_FRAME for alt ref frame,
3377 // unless ARNR filtering is enabled in which case we want
3378 // an unfiltered alternative. We allow near/nearest as well
3379 // because they may result in zero-zero MVs but be cheaper.
3380 if (cpi->rc.is_src_frame_alt_ref && (cpi->oxcf.arnr_max_frames == 0))
3381 continue;
3382 }
3383
3384 mbmi->tx_size = TX_4X4;
3385 mbmi->uv_mode = DC_PRED;
3386 mbmi->ref_frame[0] = ref_frame;
3387 mbmi->ref_frame[1] = second_ref_frame;
3388 // Evaluate all sub-pel filters irrespective of whether we can use
3389 // them for this frame.
3390 mbmi->interp_filter = cm->interp_filter == SWITCHABLE ? EIGHTTAP
3391 : cm->interp_filter;
3392 x->skip = 0;
3393 set_ref_ptrs(cm, xd, ref_frame, second_ref_frame);
3394
3395 // Select prediction reference frames.
3396 for (i = 0; i < MAX_MB_PLANE; i++) {
3397 xd->plane[i].pre[0] = yv12_mb[ref_frame][i];
3398 if (comp_pred)
3399 xd->plane[i].pre[1] = yv12_mb[second_ref_frame][i];
3400 }
3401
3402 if (ref_frame == INTRA_FRAME) {
3403 int rate;
3404 if (rd_pick_intra_sub_8x8_y_mode(cpi, x, &rate, &rate_y,
3405 &distortion_y, best_rd) >= best_rd)
3406 continue;
3407 rate2 += rate;
3408 rate2 += intra_cost_penalty;
3409 distortion2 += distortion_y;
3410
3411 if (rate_uv_intra == INT_MAX) {
3412 choose_intra_uv_mode(cpi, ctx, bsize, TX_4X4,
3413 &rate_uv_intra,
3414 &rate_uv_tokenonly,
3415 &dist_uv, &skip_uv,
3416 &mode_uv);
3417 }
3418 rate2 += rate_uv_intra;
3419 rate_uv = rate_uv_tokenonly;
3420 distortion2 += dist_uv;
3421 distortion_uv = dist_uv;
3422 mbmi->uv_mode = mode_uv;
3423 } else {
3424 int rate;
3425 int64_t distortion;
3426 int64_t this_rd_thresh;
3427 int64_t tmp_rd, tmp_best_rd = INT64_MAX, tmp_best_rdu = INT64_MAX;
3428 int tmp_best_rate = INT_MAX, tmp_best_ratey = INT_MAX;
3429 int64_t tmp_best_distortion = INT_MAX, tmp_best_sse, uv_sse;
3430 int tmp_best_skippable = 0;
3431 int switchable_filter_index;
3432 int_mv *second_ref = comp_pred ?
3433 &mbmi->ref_mvs[second_ref_frame][0] : NULL;
3434 b_mode_info tmp_best_bmodes[16];
3435 MB_MODE_INFO tmp_best_mbmode;
3436 BEST_SEG_INFO bsi[SWITCHABLE_FILTERS];
3437 int pred_exists = 0;
3438 int uv_skippable;
3439
3440 this_rd_thresh = (ref_frame == LAST_FRAME) ?
3441 rd_opt->threshes[segment_id][bsize][THR_LAST] :
3442 rd_opt->threshes[segment_id][bsize][THR_ALTR];
3443 this_rd_thresh = (ref_frame == GOLDEN_FRAME) ?
3444 rd_opt->threshes[segment_id][bsize][THR_GOLD] : this_rd_thresh;
3445 rd_opt->mask_filter = 0;
3446 for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i)
3447 rd_opt->filter_cache[i] = INT64_MAX;
3448
3449 if (cm->interp_filter != BILINEAR) {
3450 tmp_best_filter = EIGHTTAP;
3451 if (x->source_variance < cpi->sf.disable_filter_search_var_thresh) {
3452 tmp_best_filter = EIGHTTAP;
3453 } else if (cpi->sf.adaptive_pred_interp_filter == 1 &&
3454 ctx->pred_interp_filter < SWITCHABLE) {
3455 tmp_best_filter = ctx->pred_interp_filter;
3456 } else if (cpi->sf.adaptive_pred_interp_filter == 2) {
3457 tmp_best_filter = ctx->pred_interp_filter < SWITCHABLE ?
3458 ctx->pred_interp_filter : 0;
3459 } else {
3460 for (switchable_filter_index = 0;
3461 switchable_filter_index < SWITCHABLE_FILTERS;
3462 ++switchable_filter_index) {
3463 int newbest, rs;
3464 int64_t rs_rd;
3465 mbmi->interp_filter = switchable_filter_index;
3466 tmp_rd = rd_pick_best_sub8x8_mode(cpi, x, tile,
3467 &mbmi->ref_mvs[ref_frame][0],
3468 second_ref, best_yrd, &rate,
3469 &rate_y, &distortion,
3470 &skippable, &total_sse,
3471 (int) this_rd_thresh, seg_mvs,
3472 bsi, switchable_filter_index,
3473 mi_row, mi_col);
3474
3475 if (tmp_rd == INT64_MAX)
3476 continue;
3477 rs = vp9_get_switchable_rate(cpi);
3478 rs_rd = RDCOST(x->rdmult, x->rddiv, rs, 0);
3479 rd_opt->filter_cache[switchable_filter_index] = tmp_rd;
3480 rd_opt->filter_cache[SWITCHABLE_FILTERS] =
3481 MIN(rd_opt->filter_cache[SWITCHABLE_FILTERS],
3482 tmp_rd + rs_rd);
3483 if (cm->interp_filter == SWITCHABLE)
3484 tmp_rd += rs_rd;
3485
3486 rd_opt->mask_filter = MAX(rd_opt->mask_filter, tmp_rd);
3487
3488 newbest = (tmp_rd < tmp_best_rd);
3489 if (newbest) {
3490 tmp_best_filter = mbmi->interp_filter;
3491 tmp_best_rd = tmp_rd;
3492 }
3493 if ((newbest && cm->interp_filter == SWITCHABLE) ||
3494 (mbmi->interp_filter == cm->interp_filter &&
3495 cm->interp_filter != SWITCHABLE)) {
3496 tmp_best_rdu = tmp_rd;
3497 tmp_best_rate = rate;
3498 tmp_best_ratey = rate_y;
3499 tmp_best_distortion = distortion;
3500 tmp_best_sse = total_sse;
3501 tmp_best_skippable = skippable;
3502 tmp_best_mbmode = *mbmi;
3503 for (i = 0; i < 4; i++) {
3504 tmp_best_bmodes[i] = xd->mi[0]->bmi[i];
3505 x->zcoeff_blk[TX_4X4][i] = !x->plane[0].eobs[i];
3506 }
3507 pred_exists = 1;
3508 if (switchable_filter_index == 0 &&
3509 cpi->sf.use_rd_breakout &&
3510 best_rd < INT64_MAX) {
3511 if (tmp_best_rdu / 2 > best_rd) {
3512 // skip searching the other filters if the first is
3513 // already substantially larger than the best so far
3514 tmp_best_filter = mbmi->interp_filter;
3515 tmp_best_rdu = INT64_MAX;
3516 break;
3517 }
3518 }
3519 }
3520 } // switchable_filter_index loop
3521 }
3522 }
3523
3524 if (tmp_best_rdu == INT64_MAX && pred_exists)
3525 continue;
3526
3527 mbmi->interp_filter = (cm->interp_filter == SWITCHABLE ?
3528 tmp_best_filter : cm->interp_filter);
3529 if (!pred_exists) {
3530 // Handles the special case when a filter that is not in the
3531 // switchable list (bilinear, 6-tap) is indicated at the frame level
3532 tmp_rd = rd_pick_best_sub8x8_mode(cpi, x, tile,
3533 &mbmi->ref_mvs[ref_frame][0],
3534 second_ref, best_yrd, &rate, &rate_y,
3535 &distortion, &skippable, &total_sse,
3536 (int) this_rd_thresh, seg_mvs, bsi, 0,
3537 mi_row, mi_col);
3538 if (tmp_rd == INT64_MAX)
3539 continue;
3540 } else {
3541 total_sse = tmp_best_sse;
3542 rate = tmp_best_rate;
3543 rate_y = tmp_best_ratey;
3544 distortion = tmp_best_distortion;
3545 skippable = tmp_best_skippable;
3546 *mbmi = tmp_best_mbmode;
3547 for (i = 0; i < 4; i++)
3548 xd->mi[0]->bmi[i] = tmp_best_bmodes[i];
3549 }
3550
3551 rate2 += rate;
3552 distortion2 += distortion;
3553
3554 if (cm->interp_filter == SWITCHABLE)
3555 rate2 += vp9_get_switchable_rate(cpi);
3556
3557 if (!mode_excluded)
3558 mode_excluded = comp_pred ? cm->reference_mode == SINGLE_REFERENCE
3559 : cm->reference_mode == COMPOUND_REFERENCE;
3560
3561 compmode_cost = vp9_cost_bit(comp_mode_p, comp_pred);
3562
3563 tmp_best_rdu = best_rd -
3564 MIN(RDCOST(x->rdmult, x->rddiv, rate2, distortion2),
3565 RDCOST(x->rdmult, x->rddiv, 0, total_sse));
3566
3567 if (tmp_best_rdu > 0) {
3568 // If even the 'Y' rd value of split is higher than best so far
3569 // then dont bother looking at UV
3570 vp9_build_inter_predictors_sbuv(&x->e_mbd, mi_row, mi_col,
3571 BLOCK_8X8);
3572 super_block_uvrd(cpi, x, &rate_uv, &distortion_uv, &uv_skippable,
3573 &uv_sse, BLOCK_8X8, tmp_best_rdu);
3574 if (rate_uv == INT_MAX)
3575 continue;
3576 rate2 += rate_uv;
3577 distortion2 += distortion_uv;
3578 skippable = skippable && uv_skippable;
3579 total_sse += uv_sse;
3580 }
3581 }
3582
3583 if (cm->reference_mode == REFERENCE_MODE_SELECT)
3584 rate2 += compmode_cost;
3585
3586 // Estimate the reference frame signaling cost and add it
3587 // to the rolling cost variable.
3588 if (second_ref_frame > INTRA_FRAME) {
3589 rate2 += ref_costs_comp[ref_frame];
3590 } else {
3591 rate2 += ref_costs_single[ref_frame];
3592 }
3593
3594 if (!disable_skip) {
3595 // Skip is never coded at the segment level for sub8x8 blocks and instead
3596 // always coded in the bitstream at the mode info level.
3597
3598 if (ref_frame != INTRA_FRAME && !xd->lossless) {
3599 if (RDCOST(x->rdmult, x->rddiv, rate_y + rate_uv, distortion2) <
3600 RDCOST(x->rdmult, x->rddiv, 0, total_sse)) {
3601 // Add in the cost of the no skip flag.
3602 rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0);
3603 } else {
3604 // FIXME(rbultje) make this work for splitmv also
3605 rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1);
3606 distortion2 = total_sse;
3607 assert(total_sse >= 0);
3608 rate2 -= (rate_y + rate_uv);
3609 rate_y = 0;
3610 rate_uv = 0;
3611 this_skip2 = 1;
3612 }
3613 } else {
3614 // Add in the cost of the no skip flag.
3615 rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0);
3616 }
3617
3618 // Calculate the final RD estimate for this mode.
3619 this_rd = RDCOST(x->rdmult, x->rddiv, rate2, distortion2);
3620 }
3621
3622 // Keep record of best inter rd with single reference
3623 if (is_inter_block(mbmi) &&
3624 !has_second_ref(mbmi) &&
3625 !mode_excluded &&
3626 this_rd < best_inter_rd) {
3627 best_inter_rd = this_rd;
3628 best_inter_ref_frame = ref_frame;
3629 }
3630
3631 if (!disable_skip && ref_frame == INTRA_FRAME) {
3632 for (i = 0; i < REFERENCE_MODES; ++i)
3633 best_pred_rd[i] = MIN(best_pred_rd[i], this_rd);
3634 for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++)
3635 best_filter_rd[i] = MIN(best_filter_rd[i], this_rd);
3636 }
3637
3638 // Did this mode help.. i.e. is it the new best mode
3639 if (this_rd < best_rd || x->skip) {
3640 if (!mode_excluded) {
3641 int max_plane = MAX_MB_PLANE;
3642 // Note index of best mode so far
3643 best_ref_index = ref_index;
3644
3645 if (ref_frame == INTRA_FRAME) {
3646 /* required for left and above block mv */
3647 mbmi->mv[0].as_int = 0;
3648 max_plane = 1;
3649 }
3650
3651 *returnrate = rate2;
3652 *returndistortion = distortion2;
3653 best_rd = this_rd;
3654 best_yrd = best_rd -
3655 RDCOST(x->rdmult, x->rddiv, rate_uv, distortion_uv);
3656 best_mbmode = *mbmi;
3657 best_skip2 = this_skip2;
3658 if (!x->select_tx_size)
3659 swap_block_ptr(x, ctx, 1, 0, 0, max_plane);
3660 vpx_memcpy(ctx->zcoeff_blk, x->zcoeff_blk[TX_4X4],
3661 sizeof(uint8_t) * ctx->num_4x4_blk);
3662
3663 for (i = 0; i < 4; i++)
3664 best_bmodes[i] = xd->mi[0]->bmi[i];
3665
3666 // TODO(debargha): enhance this test with a better distortion prediction
3667 // based on qp, activity mask and history
3668 if ((cpi->sf.mode_search_skip_flags & FLAG_EARLY_TERMINATE) &&
3669 (ref_index > MIN_EARLY_TERM_INDEX)) {
3670 const int qstep = xd->plane[0].dequant[1];
3671 // TODO(debargha): Enhance this by specializing for each mode_index
3672 int scale = 4;
3673 if (x->source_variance < UINT_MAX) {
3674 const int var_adjust = (x->source_variance < 16);
3675 scale -= var_adjust;
3676 }
3677 if (ref_frame > INTRA_FRAME &&
3678 distortion2 * scale < qstep * qstep) {
3679 early_term = 1;
3680 }
3681 }
3682 }
3683 }
3684
3685 /* keep record of best compound/single-only prediction */
3686 if (!disable_skip && ref_frame != INTRA_FRAME) {
3687 int64_t single_rd, hybrid_rd, single_rate, hybrid_rate;
3688
3689 if (cm->reference_mode == REFERENCE_MODE_SELECT) {
3690 single_rate = rate2 - compmode_cost;
3691 hybrid_rate = rate2;
3692 } else {
3693 single_rate = rate2;
3694 hybrid_rate = rate2 + compmode_cost;
3695 }
3696
3697 single_rd = RDCOST(x->rdmult, x->rddiv, single_rate, distortion2);
3698 hybrid_rd = RDCOST(x->rdmult, x->rddiv, hybrid_rate, distortion2);
3699
3700 if (!comp_pred && single_rd < best_pred_rd[SINGLE_REFERENCE]) {
3701 best_pred_rd[SINGLE_REFERENCE] = single_rd;
3702 } else if (comp_pred && single_rd < best_pred_rd[COMPOUND_REFERENCE]) {
3703 best_pred_rd[COMPOUND_REFERENCE] = single_rd;
3704 }
3705 if (hybrid_rd < best_pred_rd[REFERENCE_MODE_SELECT])
3706 best_pred_rd[REFERENCE_MODE_SELECT] = hybrid_rd;
3707 }
3708
3709 /* keep record of best filter type */
3710 if (!mode_excluded && !disable_skip && ref_frame != INTRA_FRAME &&
3711 cm->interp_filter != BILINEAR) {
3712 int64_t ref = rd_opt->filter_cache[cm->interp_filter == SWITCHABLE ?
3713 SWITCHABLE_FILTERS : cm->interp_filter];
3714 int64_t adj_rd;
3715 for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++) {
3716 if (ref == INT64_MAX)
3717 adj_rd = 0;
3718 else if (rd_opt->filter_cache[i] == INT64_MAX)
3719 // when early termination is triggered, the encoder does not have
3720 // access to the rate-distortion cost. it only knows that the cost
3721 // should be above the maximum valid value. hence it takes the known
3722 // maximum plus an arbitrary constant as the rate-distortion cost.
3723 adj_rd = rd_opt->mask_filter - ref + 10;
3724 else
3725 adj_rd = rd_opt->filter_cache[i] - ref;
3726
3727 adj_rd += this_rd;
3728 best_filter_rd[i] = MIN(best_filter_rd[i], adj_rd);
3729 }
3730 }
3731
3732 if (early_term)
3733 break;
3734
3735 if (x->skip && !comp_pred)
3736 break;
3737 }
3738
3739 if (best_rd >= best_rd_so_far)
3740 return INT64_MAX;
3741
3742 // If we used an estimate for the uv intra rd in the loop above...
3743 if (cpi->sf.use_uv_intra_rd_estimate) {
3744 // Do Intra UV best rd mode selection if best mode choice above was intra.
3745 if (vp9_ref_order[best_ref_index].ref_frame[0] == INTRA_FRAME) {
3746 *mbmi = best_mbmode;
3747 rd_pick_intra_sbuv_mode(cpi, x, ctx, &rate_uv_intra,
3748 &rate_uv_tokenonly,
3749 &dist_uv,
3750 &skip_uv,
3751 BLOCK_8X8, TX_4X4);
3752 }
3753 }
3754
3755 if (best_rd == INT64_MAX) {
3756 *returnrate = INT_MAX;
3757 *returndistortion = INT64_MAX;
3758 return best_rd;
3759 }
3760
3761 assert((cm->interp_filter == SWITCHABLE) ||
3762 (cm->interp_filter == best_mbmode.interp_filter) ||
3763 !is_inter_block(&best_mbmode));
3764
3765 update_rd_thresh_fact(cpi, bsize, best_ref_index);
3766
3767 // macroblock modes
3768 *mbmi = best_mbmode;
3769 x->skip |= best_skip2;
3770 if (!is_inter_block(&best_mbmode)) {
3771 for (i = 0; i < 4; i++)
3772 xd->mi[0]->bmi[i].as_mode = best_bmodes[i].as_mode;
3773 } else {
3774 for (i = 0; i < 4; ++i)
3775 vpx_memcpy(&xd->mi[0]->bmi[i], &best_bmodes[i], sizeof(b_mode_info));
3776
3777 mbmi->mv[0].as_int = xd->mi[0]->bmi[3].as_mv[0].as_int;
3778 mbmi->mv[1].as_int = xd->mi[0]->bmi[3].as_mv[1].as_int;
3779 }
3780
3781 for (i = 0; i < REFERENCE_MODES; ++i) {
3782 if (best_pred_rd[i] == INT64_MAX)
3783 best_pred_diff[i] = INT_MIN;
3784 else
3785 best_pred_diff[i] = best_rd - best_pred_rd[i];
3786 }
3787
3788 if (!x->skip) {
3789 for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++) {
3790 if (best_filter_rd[i] == INT64_MAX)
3791 best_filter_diff[i] = 0;
3792 else
3793 best_filter_diff[i] = best_rd - best_filter_rd[i];
3794 }
3795 if (cm->interp_filter == SWITCHABLE)
3796 assert(best_filter_diff[SWITCHABLE_FILTERS] == 0);
3797 } else {
3798 vp9_zero(best_filter_diff);
3799 }
3800
3801 set_ref_ptrs(cm, xd, mbmi->ref_frame[0], mbmi->ref_frame[1]);
3802 store_coding_context(x, ctx, best_ref_index,
3803 best_pred_diff, best_tx_diff, best_filter_diff);
3804
3805 return best_rd;
3806 }
3807