1 /******************************************************************************
2 *
3 * Copyright (C) 2018 The Android Open Source Project
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 *****************************************************************************
18 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
19 */
20
21 /**
22 ******************************************************************************
23 * @file hme_subpel.c
24 *
25 * @brief
26 * Fullpel search and refinement
27 *
28 * @author
29 * Ittiam
30 *
31 ******************************************************************************
32 */
33
34 /*****************************************************************************/
35 /* File Includes */
36 /*****************************************************************************/
37 /* System include files */
38 #include <stdio.h>
39 #include <string.h>
40 #include <stdlib.h>
41 #include <assert.h>
42 #include <stdarg.h>
43 #include <math.h>
44 #include <limits.h>
45
46 /* User include files */
47 #include "ihevc_typedefs.h"
48 #include "itt_video_api.h"
49 #include "ihevce_api.h"
50
51 #include "rc_cntrl_param.h"
52 #include "rc_frame_info_collector.h"
53 #include "rc_look_ahead_params.h"
54
55 #include "ihevc_defs.h"
56 #include "ihevc_structs.h"
57 #include "ihevc_platform_macros.h"
58 #include "ihevc_deblk.h"
59 #include "ihevc_itrans_recon.h"
60 #include "ihevc_chroma_itrans_recon.h"
61 #include "ihevc_chroma_intra_pred.h"
62 #include "ihevc_intra_pred.h"
63 #include "ihevc_inter_pred.h"
64 #include "ihevc_mem_fns.h"
65 #include "ihevc_padding.h"
66 #include "ihevc_weighted_pred.h"
67 #include "ihevc_sao.h"
68 #include "ihevc_resi_trans.h"
69 #include "ihevc_quant_iquant_ssd.h"
70 #include "ihevc_cabac_tables.h"
71
72 #include "ihevce_defs.h"
73 #include "ihevce_lap_enc_structs.h"
74 #include "ihevce_multi_thrd_structs.h"
75 #include "ihevce_multi_thrd_funcs.h"
76 #include "ihevce_me_common_defs.h"
77 #include "ihevce_had_satd.h"
78 #include "ihevce_error_codes.h"
79 #include "ihevce_bitstream.h"
80 #include "ihevce_cabac.h"
81 #include "ihevce_rdoq_macros.h"
82 #include "ihevce_function_selector.h"
83 #include "ihevce_enc_structs.h"
84 #include "ihevce_entropy_structs.h"
85 #include "ihevce_cmn_utils_instr_set_router.h"
86 #include "ihevce_enc_loop_structs.h"
87 #include "ihevce_bs_compute_ctb.h"
88 #include "ihevce_global_tables.h"
89 #include "ihevce_dep_mngr_interface.h"
90 #include "hme_datatype.h"
91 #include "hme_interface.h"
92 #include "hme_common_defs.h"
93 #include "hme_defs.h"
94 #include "ihevce_me_instr_set_router.h"
95 #include "hme_globals.h"
96 #include "hme_utils.h"
97 #include "hme_coarse.h"
98 #include "hme_refine.h"
99 #include "hme_err_compute.h"
100 #include "hme_common_utils.h"
101 #include "hme_search_algo.h"
102 #include "ihevce_stasino_helpers.h"
103
104 /**
105 ********************************************************************************
106 * @fn hme_fullpel_cand_sifter
107 *
108 * @brief Given a list of search candidates and valid partition types,
109 * this function finds the two best candidates for each partition type.
110 *
111 * @return None
112 ********************************************************************************
113 */
hme_fullpel_cand_sifter(hme_search_prms_t * ps_search_prms,layer_ctxt_t * ps_layer_ctxt,wgt_pred_ctxt_t * ps_wt_inp_prms,S32 i4_alpha_stim_multiplier,U08 u1_is_cu_noisy,ihevce_me_optimised_function_list_t * ps_me_optimised_function_list)114 void hme_fullpel_cand_sifter(
115 hme_search_prms_t *ps_search_prms,
116 layer_ctxt_t *ps_layer_ctxt,
117 wgt_pred_ctxt_t *ps_wt_inp_prms,
118 S32 i4_alpha_stim_multiplier,
119 U08 u1_is_cu_noisy,
120 ihevce_me_optimised_function_list_t *ps_me_optimised_function_list)
121 {
122 S32 i4_i;
123 S16 i2_temp_tot_cost, i2_temp_stim_injected_cost, i2_temp_mv_cost, i2_temp_mv_x, i2_temp_mv_y,
124 i2_temp_ref_idx;
125
126 fullpel_refine_ctxt_t *ps_fullpel_refine_ctxt = ps_search_prms->ps_fullpel_refine_ctxt;
127 S32 i4_temp_part_mask;
128
129 ps_search_prms->i4_alpha_stim_multiplier = i4_alpha_stim_multiplier;
130 ps_search_prms->u1_is_cu_noisy = u1_is_cu_noisy;
131
132 if(u1_is_cu_noisy)
133 {
134 i4_temp_part_mask = ps_search_prms->i4_part_mask;
135 ps_search_prms->i4_part_mask &= ((ENABLE_2Nx2N) | (ENABLE_NxN));
136
137 ps_fullpel_refine_ctxt->i4_num_valid_parts = hme_create_valid_part_ids(
138 (ps_search_prms->i4_part_mask) & ((ENABLE_2Nx2N) | (ENABLE_NxN)),
139 &ps_fullpel_refine_ctxt->ai4_part_id[0]);
140 }
141
142 ps_search_prms->u1_is_cu_noisy = u1_is_cu_noisy;
143
144 hme_pred_search(
145 ps_search_prms, ps_layer_ctxt, ps_wt_inp_prms, 0, ps_me_optimised_function_list);
146
147 if(u1_is_cu_noisy)
148 {
149 if(ps_search_prms->ps_search_results->u1_num_results_per_part == 2)
150 {
151 for(i4_i = 0; i4_i < ps_fullpel_refine_ctxt->i4_num_valid_parts; i4_i++)
152 {
153 if(ps_fullpel_refine_ctxt->i2_tot_cost[0][i4_i] >
154 ps_fullpel_refine_ctxt->i2_tot_cost[1][i4_i])
155 {
156 i2_temp_tot_cost = ps_fullpel_refine_ctxt->i2_tot_cost[0][i4_i];
157 i2_temp_stim_injected_cost =
158 ps_fullpel_refine_ctxt->i2_stim_injected_cost[0][i4_i];
159 i2_temp_mv_cost = ps_fullpel_refine_ctxt->i2_mv_cost[0][i4_i];
160 i2_temp_mv_x = ps_fullpel_refine_ctxt->i2_mv_x[0][i4_i];
161 i2_temp_mv_y = ps_fullpel_refine_ctxt->i2_mv_y[0][i4_i];
162 i2_temp_ref_idx = ps_fullpel_refine_ctxt->i2_ref_idx[0][i4_i];
163
164 ps_fullpel_refine_ctxt->i2_tot_cost[0][i4_i] =
165 ps_fullpel_refine_ctxt->i2_tot_cost[1][i4_i];
166 ps_fullpel_refine_ctxt->i2_stim_injected_cost[0][i4_i] =
167 ps_fullpel_refine_ctxt->i2_stim_injected_cost[1][i4_i];
168 ps_fullpel_refine_ctxt->i2_mv_cost[0][i4_i] =
169 ps_fullpel_refine_ctxt->i2_mv_cost[1][i4_i];
170 ps_fullpel_refine_ctxt->i2_mv_x[0][i4_i] =
171 ps_fullpel_refine_ctxt->i2_mv_x[1][i4_i];
172 ps_fullpel_refine_ctxt->i2_mv_y[0][i4_i] =
173 ps_fullpel_refine_ctxt->i2_mv_y[1][i4_i];
174 ps_fullpel_refine_ctxt->i2_ref_idx[0][i4_i] =
175 ps_fullpel_refine_ctxt->i2_ref_idx[1][i4_i];
176
177 ps_fullpel_refine_ctxt->i2_tot_cost[1][i4_i] = i2_temp_tot_cost;
178 ps_fullpel_refine_ctxt->i2_stim_injected_cost[1][i4_i] =
179 i2_temp_stim_injected_cost;
180 ps_fullpel_refine_ctxt->i2_mv_cost[1][i4_i] = i2_temp_mv_cost;
181 ps_fullpel_refine_ctxt->i2_mv_x[1][i4_i] = i2_temp_mv_x;
182 ps_fullpel_refine_ctxt->i2_mv_y[1][i4_i] = i2_temp_mv_y;
183 ps_fullpel_refine_ctxt->i2_ref_idx[1][i4_i] = i2_temp_ref_idx;
184 }
185 }
186 }
187
188 ps_search_prms->i4_part_mask = i4_temp_part_mask;
189
190 ps_fullpel_refine_ctxt->i4_num_valid_parts = hme_create_valid_part_ids(
191 ps_search_prms->i4_part_mask, &ps_fullpel_refine_ctxt->ai4_part_id[0]);
192 }
193 }
194
hme_add_fpel_refine_candidates_to_search_cand_array(search_node_t * ps_unique_search_nodes,fullpel_refine_ctxt_t * ps_fullpel_refine_ctxt,S32 * pi4_num_unique_nodes,U32 * pu4_unique_node_map,S32 i4_fpel_search_result_id,S32 i4_fpel_search_result_array_index,S32 i4_unique_node_map_center_x,S32 i4_unique_node_map_center_y,S08 i1_unique_node_map_ref_idx,U08 u1_add_refine_grid_center_to_search_cand_array,U08 u1_do_not_check_for_duplicates)195 static void hme_add_fpel_refine_candidates_to_search_cand_array(
196 search_node_t *ps_unique_search_nodes,
197 fullpel_refine_ctxt_t *ps_fullpel_refine_ctxt,
198 S32 *pi4_num_unique_nodes,
199 U32 *pu4_unique_node_map,
200 S32 i4_fpel_search_result_id,
201 S32 i4_fpel_search_result_array_index,
202 S32 i4_unique_node_map_center_x,
203 S32 i4_unique_node_map_center_y,
204 S08 i1_unique_node_map_ref_idx,
205 U08 u1_add_refine_grid_center_to_search_cand_array,
206 U08 u1_do_not_check_for_duplicates)
207 {
208 search_node_t s_refine_grid_center;
209
210 U08 u1_use_hashing, i;
211
212 S32 i2_mvx =
213 ps_fullpel_refine_ctxt->i2_mv_x[i4_fpel_search_result_id][i4_fpel_search_result_array_index];
214 S32 i2_mvy =
215 ps_fullpel_refine_ctxt->i2_mv_y[i4_fpel_search_result_id][i4_fpel_search_result_array_index];
216 S08 i1_ref_idx = ps_fullpel_refine_ctxt
217 ->i2_ref_idx[i4_fpel_search_result_id][i4_fpel_search_result_array_index];
218
219 if(!u1_do_not_check_for_duplicates)
220 {
221 s_refine_grid_center.s_mv.i2_mvx = i2_mvx;
222 s_refine_grid_center.s_mv.i2_mvy = i2_mvy;
223 s_refine_grid_center.i1_ref_idx = i1_ref_idx;
224
225 u1_use_hashing = (s_refine_grid_center.i1_ref_idx == i1_unique_node_map_ref_idx);
226
227 for(i = 0; i < NUM_POINTS_IN_RECTANGULAR_GRID; i++)
228 {
229 S08 i1_offset_x = gai1_mv_offsets_from_center_in_rect_grid[i][0];
230 S08 i1_offset_y = gai1_mv_offsets_from_center_in_rect_grid[i][1];
231
232 if(i1_offset_x || i1_offset_y)
233 {
234 s_refine_grid_center.s_mv.i2_mvx = i2_mvx + i1_offset_x;
235 s_refine_grid_center.s_mv.i2_mvy = i2_mvy + i1_offset_y;
236
237 INSERT_NEW_NODE(
238 ps_unique_search_nodes,
239 pi4_num_unique_nodes[0],
240 s_refine_grid_center,
241 1,
242 pu4_unique_node_map,
243 i4_unique_node_map_center_x,
244 i4_unique_node_map_center_y,
245 u1_use_hashing);
246 }
247 else if(u1_add_refine_grid_center_to_search_cand_array)
248 {
249 s_refine_grid_center.s_mv.i2_mvx = i2_mvx;
250 s_refine_grid_center.s_mv.i2_mvy = i2_mvy;
251
252 INSERT_NEW_NODE(
253 ps_unique_search_nodes,
254 pi4_num_unique_nodes[0],
255 s_refine_grid_center,
256 1,
257 pu4_unique_node_map,
258 i4_unique_node_map_center_x,
259 i4_unique_node_map_center_y,
260 0);
261 }
262 }
263 }
264 else
265 {
266 for(i = 0; i < NUM_POINTS_IN_RECTANGULAR_GRID; i++)
267 {
268 S08 i1_offset_x = gai1_mv_offsets_from_center_in_rect_grid[i][0];
269 S08 i1_offset_y = gai1_mv_offsets_from_center_in_rect_grid[i][1];
270
271 if(i1_offset_x || i1_offset_y)
272 {
273 ps_unique_search_nodes[pi4_num_unique_nodes[0]].s_mv.i2_mvx = i2_mvx + i1_offset_x;
274 ps_unique_search_nodes[pi4_num_unique_nodes[0]].s_mv.i2_mvy = i2_mvy + i1_offset_y;
275 ps_unique_search_nodes[pi4_num_unique_nodes[0]++].i1_ref_idx = i1_ref_idx;
276 }
277 else if(u1_add_refine_grid_center_to_search_cand_array)
278 {
279 ps_unique_search_nodes[pi4_num_unique_nodes[0]].s_mv.i2_mvx = i2_mvx;
280 ps_unique_search_nodes[pi4_num_unique_nodes[0]].s_mv.i2_mvy = i2_mvy;
281 ps_unique_search_nodes[pi4_num_unique_nodes[0]++].i1_ref_idx = i1_ref_idx;
282 }
283 }
284 }
285 }
286
hme_fullpel_refine(refine_prms_t * ps_refine_prms,hme_search_prms_t * ps_search_prms,layer_ctxt_t * ps_layer_ctxt,wgt_pred_ctxt_t * ps_wt_inp_prms,U32 * pu4_unique_node_map,U08 u1_num_init_search_cands,U08 u1_8x8_blk_mask,S32 i4_unique_node_map_center_x,S32 i4_unique_node_map_center_y,S08 i1_unique_node_map_ref_idx,ME_QUALITY_PRESETS_T e_quality_preset,ihevce_me_optimised_function_list_t * ps_me_optimised_function_list)287 void hme_fullpel_refine(
288 refine_prms_t *ps_refine_prms,
289 hme_search_prms_t *ps_search_prms,
290 layer_ctxt_t *ps_layer_ctxt,
291 wgt_pred_ctxt_t *ps_wt_inp_prms,
292 U32 *pu4_unique_node_map,
293 U08 u1_num_init_search_cands,
294 U08 u1_8x8_blk_mask,
295 S32 i4_unique_node_map_center_x,
296 S32 i4_unique_node_map_center_y,
297 S08 i1_unique_node_map_ref_idx,
298 ME_QUALITY_PRESETS_T e_quality_preset,
299 ihevce_me_optimised_function_list_t *ps_me_optimised_function_list)
300 {
301 S32 i, j;
302 S32 i4_num_results;
303 U08 u1_num_complete_grids = 0;
304 U08 u1_num_grids = 0;
305
306 fullpel_refine_ctxt_t *ps_fullpel_refine_ctxt = ps_search_prms->ps_fullpel_refine_ctxt;
307
308 S32 i4_num_unique_nodes = 0;
309
310 search_node_t *ps_unique_search_nodes = ps_search_prms->ps_search_nodes;
311
312 if(u1_num_init_search_cands >= 2)
313 {
314 S32 i4_max_num_results = (15 == u1_8x8_blk_mask)
315 ? ps_refine_prms->u1_max_num_fpel_refine_centers
316 : ((ME_XTREME_SPEED_25 == e_quality_preset)
317 ? MAX_NUM_CANDS_FOR_FPEL_REFINE_IN_XS25
318 : INT_MAX);
319
320 for(i = 0; i < ps_fullpel_refine_ctxt->i4_num_valid_parts; i++)
321 {
322 S32 i4_part_id;
323 S32 i4_index;
324
325 i4_part_id = ps_fullpel_refine_ctxt->ai4_part_id[i];
326 i4_index = (ps_fullpel_refine_ctxt->i4_num_valid_parts > 8) ? i4_part_id : i;
327 i4_num_results = (15 == u1_8x8_blk_mask)
328 ? MIN(ps_search_prms->ps_search_results->u1_num_results_per_part,
329 ps_refine_prms->pu1_num_best_results[i4_part_id])
330 : ps_search_prms->ps_search_results->u1_num_results_per_part;
331
332 ASSERT(i4_num_results <= 2);
333
334 for(j = 0; j < i4_num_results; j++)
335 {
336 if((ps_fullpel_refine_ctxt->i2_ref_idx[j][i4_index] >= 0) &&
337 (ps_fullpel_refine_ctxt->i2_mv_x[j][i4_index] != INTRA_MV))
338 {
339 S32 i4_num_nodes_added = i4_num_unique_nodes;
340
341 hme_add_fpel_refine_candidates_to_search_cand_array(
342 ps_unique_search_nodes,
343 ps_fullpel_refine_ctxt,
344 &i4_num_unique_nodes,
345 pu4_unique_node_map,
346 j,
347 i4_index,
348 i4_unique_node_map_center_x,
349 i4_unique_node_map_center_y,
350 i1_unique_node_map_ref_idx,
351 0,
352 0);
353
354 i4_num_nodes_added = i4_num_unique_nodes - i4_num_nodes_added;
355
356 u1_num_complete_grids +=
357 (i4_num_nodes_added >= (NUM_POINTS_IN_RECTANGULAR_GRID - 1));
358 u1_num_grids += (!!i4_num_nodes_added);
359
360 i4_max_num_results--;
361 }
362
363 if(i4_max_num_results <= 0)
364 {
365 break;
366 }
367 }
368
369 if(i4_max_num_results <= 0)
370 {
371 break;
372 }
373 }
374 }
375 else if((1 == u1_num_init_search_cands) && (ps_refine_prms->u1_max_num_fpel_refine_centers >= 1))
376 {
377 ps_fullpel_refine_ctxt->i2_mv_x[0][0] = ps_unique_search_nodes[0].s_mv.i2_mvx;
378 ps_fullpel_refine_ctxt->i2_mv_y[0][0] = ps_unique_search_nodes[0].s_mv.i2_mvy;
379 ps_fullpel_refine_ctxt->i2_ref_idx[0][0] = ps_unique_search_nodes[0].i1_ref_idx;
380
381 if((ps_fullpel_refine_ctxt->i2_ref_idx[0][0] >= 0) &&
382 (ps_fullpel_refine_ctxt->i2_mv_x[0][0] != INTRA_MV))
383 {
384 hme_add_fpel_refine_candidates_to_search_cand_array(
385 ps_unique_search_nodes,
386 ps_fullpel_refine_ctxt,
387 &i4_num_unique_nodes,
388 pu4_unique_node_map,
389 0,
390 0,
391 i4_unique_node_map_center_x,
392 i4_unique_node_map_center_y,
393 i1_unique_node_map_ref_idx,
394 1,
395 1);
396
397 u1_num_complete_grids++;
398 }
399 }
400
401 if(i4_num_unique_nodes > 0)
402 {
403 ps_search_prms->i4_num_search_nodes = i4_num_unique_nodes;
404 ps_search_prms->u1_is_cu_noisy = 0;
405
406 hme_pred_search(
407 ps_search_prms,
408 ps_layer_ctxt,
409 ps_wt_inp_prms,
410 (1 == u1_num_complete_grids) && (u1_num_grids == u1_num_complete_grids),
411 ps_me_optimised_function_list
412
413 );
414 }
415 }
416
417 /**
418 ********************************************************************************
419 * @fn hme_remove_duplicate_fpel_search_candidates
420 *
421 * @brief Function name is self-explanatory
422 *
423 * @return Number of unique candidates
424 ********************************************************************************
425 */
hme_remove_duplicate_fpel_search_candidates(search_node_t * ps_unique_search_nodes,search_candt_t * ps_search_candts,U32 * pu4_unique_node_map,S08 * pi1_pred_dir_to_ref_idx,S32 i4_num_srch_cands,S32 i4_num_init_candts,S32 i4_refine_iter_ctr,S32 i4_num_refinement_iterations,S32 i4_num_act_ref_l0,S08 i1_unique_node_map_ref_idx,S32 i4_unique_node_map_center_x,S32 i4_unique_node_map_center_y,U08 u1_is_bidir_enabled,ME_QUALITY_PRESETS_T e_quality_preset)426 S32 hme_remove_duplicate_fpel_search_candidates(
427 search_node_t *ps_unique_search_nodes,
428 search_candt_t *ps_search_candts,
429 U32 *pu4_unique_node_map,
430 S08 *pi1_pred_dir_to_ref_idx,
431 S32 i4_num_srch_cands,
432 S32 i4_num_init_candts,
433 S32 i4_refine_iter_ctr,
434 S32 i4_num_refinement_iterations,
435 S32 i4_num_act_ref_l0,
436 S08 i1_unique_node_map_ref_idx,
437 S32 i4_unique_node_map_center_x,
438 S32 i4_unique_node_map_center_y,
439 U08 u1_is_bidir_enabled,
440 ME_QUALITY_PRESETS_T e_quality_preset)
441 {
442 S32 i;
443
444 S32 i4_max_num_cands = ((!u1_is_bidir_enabled) && (i4_num_act_ref_l0 > 1))
445 ? (i4_num_init_candts >> 1)
446 : i4_num_init_candts;
447 S32 i4_num_unique_nodes = 0;
448
449 for(i = 0; (i < i4_num_srch_cands) && (i4_num_unique_nodes < i4_max_num_cands); i++)
450 {
451 search_node_t *ps_cur_cand = ps_search_candts[i].ps_search_node;
452
453 U08 u1_use_hashing = (ps_cur_cand->i1_ref_idx == i1_unique_node_map_ref_idx);
454
455 if(i4_num_refinement_iterations > 1)
456 {
457 #if !ENABLE_EXPLICIT_SEARCH_IN_P_IN_L0
458 /* Ref0 evaluated during the first iteration */
459 /* All other Ref's evaluated during the second iteration */
460 if((ps_cur_cand->i1_ref_idx != pi1_pred_dir_to_ref_idx[0]) && (i4_refine_iter_ctr == 0))
461 {
462 continue;
463 }
464 #else
465 if(e_quality_preset == ME_HIGH_QUALITY)
466 {
467 if((ps_cur_cand->i1_ref_idx != pi1_pred_dir_to_ref_idx[0]) &&
468 (i4_refine_iter_ctr == 0))
469 {
470 continue;
471 }
472 }
473 else
474 {
475 if(ps_cur_cand->i1_ref_idx != pi1_pred_dir_to_ref_idx[i4_refine_iter_ctr])
476 {
477 continue;
478 }
479 }
480 #endif
481 }
482
483 INSERT_UNIQUE_NODE(
484 ps_unique_search_nodes,
485 i4_num_unique_nodes,
486 ps_cur_cand[0],
487 pu4_unique_node_map,
488 i4_unique_node_map_center_x,
489 i4_unique_node_map_center_y,
490 u1_use_hashing);
491 }
492
493 return i4_num_unique_nodes;
494 }
495