Directory: | ../../../ffmpeg/ |
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File: | src/libavcodec/hevc_mvs.c |
Date: | 2022-07-04 19:11:22 |
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Lines: | 405 | 409 | 99.0% |
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1 | /* | ||
2 | * HEVC video decoder | ||
3 | * | ||
4 | * Copyright (C) 2012 - 2013 Guillaume Martres | ||
5 | * Copyright (C) 2013 Anand Meher Kotra | ||
6 | * | ||
7 | * This file is part of FFmpeg. | ||
8 | * | ||
9 | * FFmpeg is free software; you can redistribute it and/or | ||
10 | * modify it under the terms of the GNU Lesser General Public | ||
11 | * License as published by the Free Software Foundation; either | ||
12 | * version 2.1 of the License, or (at your option) any later version. | ||
13 | * | ||
14 | * FFmpeg is distributed in the hope that it will be useful, | ||
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
17 | * Lesser General Public License for more details. | ||
18 | * | ||
19 | * You should have received a copy of the GNU Lesser General Public | ||
20 | * License along with FFmpeg; if not, write to the Free Software | ||
21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
22 | */ | ||
23 | |||
24 | #include "hevc.h" | ||
25 | #include "hevcdec.h" | ||
26 | #include "threadframe.h" | ||
27 | |||
28 | static const uint8_t l0_l1_cand_idx[12][2] = { | ||
29 | { 0, 1, }, | ||
30 | { 1, 0, }, | ||
31 | { 0, 2, }, | ||
32 | { 2, 0, }, | ||
33 | { 1, 2, }, | ||
34 | { 2, 1, }, | ||
35 | { 0, 3, }, | ||
36 | { 3, 0, }, | ||
37 | { 1, 3, }, | ||
38 | { 3, 1, }, | ||
39 | { 2, 3, }, | ||
40 | { 3, 2, }, | ||
41 | }; | ||
42 | |||
43 | 27893447 | void ff_hevc_set_neighbour_available(HEVCContext *s, int x0, int y0, | |
44 | int nPbW, int nPbH) | ||
45 | { | ||
46 | 27893447 | HEVCLocalContext *lc = s->HEVClc; | |
47 | 27893447 | int x0b = av_mod_uintp2(x0, s->ps.sps->log2_ctb_size); | |
48 | 27893447 | int y0b = av_mod_uintp2(y0, s->ps.sps->log2_ctb_size); | |
49 | |||
50 |
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27893447 | lc->na.cand_up = (lc->ctb_up_flag || y0b); |
51 |
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27893447 | lc->na.cand_left = (lc->ctb_left_flag || x0b); |
52 |
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27893447 | lc->na.cand_up_left = (x0b || y0b) ? lc->na.cand_left && lc->na.cand_up : lc->ctb_up_left_flag; |
53 | 27893447 | lc->na.cand_up_right_sap = | |
54 | 27893447 | (x0b + nPbW == 1 << s->ps.sps->log2_ctb_size) ? | |
55 |
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27893447 | lc->ctb_up_right_flag && !y0b : lc->na.cand_up; |
56 | 27893447 | lc->na.cand_up_right = | |
57 | 27893447 | lc->na.cand_up_right_sap | |
58 |
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27893447 | && (x0 + nPbW) < lc->end_of_tiles_x; |
59 |
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27893447 | lc->na.cand_bottom_left = ((y0 + nPbH) >= lc->end_of_tiles_y) ? 0 : lc->na.cand_left; |
60 | 27893447 | } | |
61 | |||
62 | /* | ||
63 | * 6.4.1 Derivation process for z-scan order block availability | ||
64 | */ | ||
65 | 5568802 | static av_always_inline int z_scan_block_avail(HEVCContext *s, int xCurr, int yCurr, | |
66 | int xN, int yN) | ||
67 | { | ||
68 | #define MIN_TB_ADDR_ZS(x, y) \ | ||
69 | s->ps.pps->min_tb_addr_zs[(y) * (s->ps.sps->tb_mask+2) + (x)] | ||
70 | |||
71 | 5568802 | int xCurr_ctb = xCurr >> s->ps.sps->log2_ctb_size; | |
72 | 5568802 | int yCurr_ctb = yCurr >> s->ps.sps->log2_ctb_size; | |
73 | 5568802 | int xN_ctb = xN >> s->ps.sps->log2_ctb_size; | |
74 | 5568802 | int yN_ctb = yN >> s->ps.sps->log2_ctb_size; | |
75 |
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5568802 | if( yN_ctb < yCurr_ctb || xN_ctb < xCurr_ctb ) |
76 | 1398693 | return 1; | |
77 | else { | ||
78 | 4170109 | int Curr = MIN_TB_ADDR_ZS((xCurr >> s->ps.sps->log2_min_tb_size) & s->ps.sps->tb_mask, | |
79 | (yCurr >> s->ps.sps->log2_min_tb_size) & s->ps.sps->tb_mask); | ||
80 | 4170109 | int N = MIN_TB_ADDR_ZS((xN >> s->ps.sps->log2_min_tb_size) & s->ps.sps->tb_mask, | |
81 | (yN >> s->ps.sps->log2_min_tb_size) & s->ps.sps->tb_mask); | ||
82 | 4170109 | return N <= Curr; | |
83 | } | ||
84 | } | ||
85 | |||
86 | //check if the two luma locations belong to the same motion estimation region | ||
87 | 11092635 | static av_always_inline int is_diff_mer(HEVCContext *s, int xN, int yN, int xP, int yP) | |
88 | { | ||
89 | 11092635 | uint8_t plevel = s->ps.pps->log2_parallel_merge_level; | |
90 | |||
91 |
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11847709 | return xN >> plevel == xP >> plevel && |
92 |
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755074 | yN >> plevel == yP >> plevel; |
93 | } | ||
94 | |||
95 | #define MATCH_MV(x) (AV_RN32A(&A.x) == AV_RN32A(&B.x)) | ||
96 | #define MATCH(x) (A.x == B.x) | ||
97 | |||
98 | // check if the mv's and refidx are the same between A and B | ||
99 | 4411525 | static av_always_inline int compare_mv_ref_idx(struct MvField A, struct MvField B) | |
100 | { | ||
101 | 4411525 | int a_pf = A.pred_flag; | |
102 | 4411525 | int b_pf = B.pred_flag; | |
103 |
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4411525 | if (a_pf == b_pf) { |
104 |
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3283177 | if (a_pf == PF_BI) { |
105 |
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1603087 | return MATCH(ref_idx[0]) && MATCH_MV(mv[0]) && |
106 |
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3375779 | MATCH(ref_idx[1]) && MATCH_MV(mv[1]); |
107 |
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1510485 | } else if (a_pf == PF_L0) { |
108 |
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1328705 | return MATCH(ref_idx[0]) && MATCH_MV(mv[0]); |
109 |
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181780 | } else if (a_pf == PF_L1) { |
110 |
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181780 | return MATCH(ref_idx[1]) && MATCH_MV(mv[1]); |
111 | } | ||
112 | } | ||
113 | 1128348 | return 0; | |
114 | } | ||
115 | |||
116 | 2293792 | static av_always_inline void mv_scale(Mv *dst, Mv *src, int td, int tb) | |
117 | { | ||
118 | int tx, scale_factor; | ||
119 | |||
120 | 2293792 | td = av_clip_int8(td); | |
121 | 2293792 | tb = av_clip_int8(tb); | |
122 | 2293792 | tx = (0x4000 + abs(td / 2)) / td; | |
123 | 2293792 | scale_factor = av_clip_intp2((tb * tx + 32) >> 6, 12); | |
124 | 2293792 | dst->x = av_clip_int16((scale_factor * src->x + 127 + | |
125 | 2293792 | (scale_factor * src->x < 0)) >> 8); | |
126 | 2293792 | dst->y = av_clip_int16((scale_factor * src->y + 127 + | |
127 | 2293792 | (scale_factor * src->y < 0)) >> 8); | |
128 | 2293792 | } | |
129 | |||
130 | 1785722 | static int check_mvset(Mv *mvLXCol, Mv *mvCol, | |
131 | int colPic, int poc, | ||
132 | RefPicList *refPicList, int X, int refIdxLx, | ||
133 | RefPicList *refPicList_col, int listCol, int refidxCol) | ||
134 | { | ||
135 | 1785722 | int cur_lt = refPicList[X].isLongTerm[refIdxLx]; | |
136 | 1785722 | int col_lt = refPicList_col[listCol].isLongTerm[refidxCol]; | |
137 | int col_poc_diff, cur_poc_diff; | ||
138 | |||
139 |
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1785722 | if (cur_lt != col_lt) { |
140 | 1407 | mvLXCol->x = 0; | |
141 | 1407 | mvLXCol->y = 0; | |
142 | 1407 | return 0; | |
143 | } | ||
144 | |||
145 | 1784315 | col_poc_diff = colPic - refPicList_col[listCol].list[refidxCol]; | |
146 | 1784315 | cur_poc_diff = poc - refPicList[X].list[refIdxLx]; | |
147 | |||
148 |
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1784315 | if (cur_lt || col_poc_diff == cur_poc_diff || !col_poc_diff) { |
149 | 332991 | mvLXCol->x = mvCol->x; | |
150 | 332991 | mvLXCol->y = mvCol->y; | |
151 | } else { | ||
152 | 1451324 | mv_scale(mvLXCol, mvCol, col_poc_diff, cur_poc_diff); | |
153 | } | ||
154 | 1784315 | return 1; | |
155 | } | ||
156 | |||
157 | #define CHECK_MVSET(l) \ | ||
158 | check_mvset(mvLXCol, temp_col.mv + l, \ | ||
159 | colPic, s->poc, \ | ||
160 | refPicList, X, refIdxLx, \ | ||
161 | refPicList_col, L ## l, temp_col.ref_idx[l]) | ||
162 | |||
163 | // derive the motion vectors section 8.5.3.1.8 | ||
164 | 2230189 | static int derive_temporal_colocated_mvs(HEVCContext *s, MvField temp_col, | |
165 | int refIdxLx, Mv *mvLXCol, int X, | ||
166 | int colPic, RefPicList *refPicList_col) | ||
167 | { | ||
168 | 2230189 | RefPicList *refPicList = s->ref->refPicList; | |
169 | |||
170 |
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2230189 | if (temp_col.pred_flag == PF_INTRA) |
171 | 444467 | return 0; | |
172 | |||
173 |
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1785722 | if (!(temp_col.pred_flag & PF_L0)) |
174 | 210972 | return CHECK_MVSET(1); | |
175 |
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1574750 | else if (temp_col.pred_flag == PF_L0) |
176 | 748444 | return CHECK_MVSET(0); | |
177 |
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826306 | else if (temp_col.pred_flag == PF_BI) { |
178 | 826306 | int check_diffpicount = 0; | |
179 | int i, j; | ||
180 |
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2478918 | for (j = 0; j < 2; j++) { |
181 |
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4461648 | for (i = 0; i < refPicList[j].nb_refs; i++) { |
182 |
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3539903 | if (refPicList[j].list[i] > s->poc) { |
183 | 730867 | check_diffpicount++; | |
184 | 730867 | break; | |
185 | } | ||
186 | } | ||
187 | } | ||
188 |
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826306 | if (!check_diffpicount) { |
189 |
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237536 | if (X==0) |
190 | 133677 | return CHECK_MVSET(0); | |
191 | else | ||
192 | 103859 | return CHECK_MVSET(1); | |
193 | } else { | ||
194 |
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588770 | if (s->sh.collocated_list == L1) |
195 | 327361 | return CHECK_MVSET(0); | |
196 | else | ||
197 | 261409 | return CHECK_MVSET(1); | |
198 | } | ||
199 | } | ||
200 | |||
201 | ✗ | return 0; | |
202 | } | ||
203 | |||
204 | #define TAB_MVF(x, y) \ | ||
205 | tab_mvf[(y) * min_pu_width + x] | ||
206 | |||
207 | #define TAB_MVF_PU(v) \ | ||
208 | TAB_MVF(((x ## v) >> s->ps.sps->log2_min_pu_size), \ | ||
209 | ((y ## v) >> s->ps.sps->log2_min_pu_size)) | ||
210 | |||
211 | #define DERIVE_TEMPORAL_COLOCATED_MVS \ | ||
212 | derive_temporal_colocated_mvs(s, temp_col, \ | ||
213 | refIdxLx, mvLXCol, X, colPic, \ | ||
214 | ff_hevc_get_ref_list(s, ref, x, y)) | ||
215 | |||
216 | /* | ||
217 | * 8.5.3.1.7 temporal luma motion vector prediction | ||
218 | */ | ||
219 | 1999934 | static int temporal_luma_motion_vector(HEVCContext *s, int x0, int y0, | |
220 | int nPbW, int nPbH, int refIdxLx, | ||
221 | Mv *mvLXCol, int X) | ||
222 | { | ||
223 | MvField *tab_mvf; | ||
224 | MvField temp_col; | ||
225 | int x, y, x_pu, y_pu; | ||
226 | 1999934 | int min_pu_width = s->ps.sps->min_pu_width; | |
227 | 1999934 | int availableFlagLXCol = 0; | |
228 | int colPic; | ||
229 | |||
230 | 1999934 | HEVCFrame *ref = s->ref->collocated_ref; | |
231 | |||
232 |
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1999934 | if (!ref) { |
233 | ✗ | memset(mvLXCol, 0, sizeof(*mvLXCol)); | |
234 | ✗ | return 0; | |
235 | } | ||
236 | |||
237 | 1999934 | tab_mvf = ref->tab_mvf; | |
238 | 1999934 | colPic = ref->poc; | |
239 | |||
240 | //bottom right collocated motion vector | ||
241 | 1999934 | x = x0 + nPbW; | |
242 | 1999934 | y = y0 + nPbH; | |
243 | |||
244 |
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1999934 | if (tab_mvf && |
245 |
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1999934 | (y0 >> s->ps.sps->log2_ctb_size) == (y >> s->ps.sps->log2_ctb_size) && |
246 |
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1434079 | y < s->ps.sps->height && |
247 |
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1387417 | x < s->ps.sps->width) { |
248 | 1365465 | x &= ~15; | |
249 | 1365465 | y &= ~15; | |
250 |
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1365465 | if (s->threads_type == FF_THREAD_FRAME) |
251 | 1414 | ff_thread_await_progress(&ref->tf, y, 0); | |
252 | 1365465 | x_pu = x >> s->ps.sps->log2_min_pu_size; | |
253 | 1365465 | y_pu = y >> s->ps.sps->log2_min_pu_size; | |
254 | 1365465 | temp_col = TAB_MVF(x_pu, y_pu); | |
255 | 1365465 | availableFlagLXCol = DERIVE_TEMPORAL_COLOCATED_MVS; | |
256 | } | ||
257 | |||
258 | // derive center collocated motion vector | ||
259 |
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1999934 | if (tab_mvf && !availableFlagLXCol) { |
260 | 864724 | x = x0 + (nPbW >> 1); | |
261 | 864724 | y = y0 + (nPbH >> 1); | |
262 | 864724 | x &= ~15; | |
263 | 864724 | y &= ~15; | |
264 |
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864724 | if (s->threads_type == FF_THREAD_FRAME) |
265 | 1130 | ff_thread_await_progress(&ref->tf, y, 0); | |
266 | 864724 | x_pu = x >> s->ps.sps->log2_min_pu_size; | |
267 | 864724 | y_pu = y >> s->ps.sps->log2_min_pu_size; | |
268 | 864724 | temp_col = TAB_MVF(x_pu, y_pu); | |
269 | 864724 | availableFlagLXCol = DERIVE_TEMPORAL_COLOCATED_MVS; | |
270 | } | ||
271 | 1999934 | return availableFlagLXCol; | |
272 | } | ||
273 | |||
274 | #define AVAILABLE(cand, v) \ | ||
275 | (cand && !(TAB_MVF_PU(v).pred_flag == PF_INTRA)) | ||
276 | |||
277 | #define PRED_BLOCK_AVAILABLE(v) \ | ||
278 | z_scan_block_avail(s, x0, y0, x ## v, y ## v) | ||
279 | |||
280 | #define COMPARE_MV_REFIDX(a, b) \ | ||
281 | compare_mv_ref_idx(TAB_MVF_PU(a), TAB_MVF_PU(b)) | ||
282 | |||
283 | /* | ||
284 | * 8.5.3.1.2 Derivation process for spatial merging candidates | ||
285 | */ | ||
286 | 6204617 | static void derive_spatial_merge_candidates(HEVCContext *s, int x0, int y0, | |
287 | int nPbW, int nPbH, | ||
288 | int log2_cb_size, | ||
289 | int singleMCLFlag, int part_idx, | ||
290 | int merge_idx, | ||
291 | struct MvField mergecandlist[]) | ||
292 | { | ||
293 | 6204617 | HEVCLocalContext *lc = s->HEVClc; | |
294 | 6204617 | RefPicList *refPicList = s->ref->refPicList; | |
295 | 6204617 | MvField *tab_mvf = s->ref->tab_mvf; | |
296 | |||
297 | 6204617 | const int min_pu_width = s->ps.sps->min_pu_width; | |
298 | |||
299 | 6204617 | const int cand_bottom_left = lc->na.cand_bottom_left; | |
300 | 6204617 | const int cand_left = lc->na.cand_left; | |
301 | 6204617 | const int cand_up_left = lc->na.cand_up_left; | |
302 | 6204617 | const int cand_up = lc->na.cand_up; | |
303 | 6204617 | const int cand_up_right = lc->na.cand_up_right_sap; | |
304 | |||
305 | 6204617 | const int xA1 = x0 - 1; | |
306 | 6204617 | const int yA1 = y0 + nPbH - 1; | |
307 | |||
308 | 6204617 | const int xB1 = x0 + nPbW - 1; | |
309 | 6204617 | const int yB1 = y0 - 1; | |
310 | |||
311 | 6204617 | const int xB0 = x0 + nPbW; | |
312 | 6204617 | const int yB0 = y0 - 1; | |
313 | |||
314 | 6204617 | const int xA0 = x0 - 1; | |
315 | 6204617 | const int yA0 = y0 + nPbH; | |
316 | |||
317 | 6204617 | const int xB2 = x0 - 1; | |
318 | 6204617 | const int yB2 = y0 - 1; | |
319 | |||
320 | 12409234 | const int nb_refs = (s->sh.slice_type == HEVC_SLICE_P) ? | |
321 |
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6204617 | s->sh.nb_refs[0] : FFMIN(s->sh.nb_refs[0], s->sh.nb_refs[1]); |
322 | |||
323 | 6204617 | int zero_idx = 0; | |
324 | |||
325 | 6204617 | int nb_merge_cand = 0; | |
326 | 6204617 | int nb_orig_merge_cand = 0; | |
327 | |||
328 | int is_available_a0; | ||
329 | int is_available_a1; | ||
330 | int is_available_b0; | ||
331 | int is_available_b1; | ||
332 | int is_available_b2; | ||
333 | |||
334 | |||
335 |
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6204617 | if (!singleMCLFlag && part_idx == 1 && |
336 |
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668386 | (lc->cu.part_mode == PART_Nx2N || |
337 |
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404415 | lc->cu.part_mode == PART_nLx2N || |
338 |
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6203308 | lc->cu.part_mode == PART_nRx2N) || |
339 | 5845054 | is_diff_mer(s, xA1, yA1, x0, y0)) { | |
340 | 497951 | is_available_a1 = 0; | |
341 | } else { | ||
342 |
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5706666 | is_available_a1 = AVAILABLE(cand_left, A1); |
343 |
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5706666 | if (is_available_a1) { |
344 | 5333919 | mergecandlist[nb_merge_cand] = TAB_MVF_PU(A1); | |
345 |
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5333919 | if (merge_idx == 0) |
346 | 3169076 | return; | |
347 | 2164843 | nb_merge_cand++; | |
348 | } | ||
349 | } | ||
350 | |||
351 |
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3035541 | if (!singleMCLFlag && part_idx == 1 && |
352 |
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520827 | (lc->cu.part_mode == PART_2NxN || |
353 |
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428163 | lc->cu.part_mode == PART_2NxnU || |
354 |
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3322572 | lc->cu.part_mode == PART_2NxnD) || |
355 | 2910102 | is_diff_mer(s, xB1, yB1, x0, y0)) { | |
356 | 253300 | is_available_b1 = 0; | |
357 | } else { | ||
358 |
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2782241 | is_available_b1 = AVAILABLE(cand_up, B1); |
359 |
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2782241 | if (is_available_b1 && |
360 |
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1913076 | !(is_available_a1 && COMPARE_MV_REFIDX(B1, A1))) { |
361 | 2223490 | mergecandlist[nb_merge_cand] = TAB_MVF_PU(B1); | |
362 |
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2223490 | if (merge_idx == nb_merge_cand) |
363 | 1366680 | return; | |
364 | 856810 | nb_merge_cand++; | |
365 | } | ||
366 | } | ||
367 | |||
368 | // above right spatial merge candidate | ||
369 |
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1324393 | is_available_b0 = AVAILABLE(cand_up_right, B0) && |
370 |
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2392353 | xB0 < s->ps.sps->width && |
371 |
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4185202 | PRED_BLOCK_AVAILABLE(B0) && |
372 | 962190 | !is_diff_mer(s, xB0, yB0, x0, y0); | |
373 | |||
374 |
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1668861 | if (is_available_b0 && |
375 |
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855281 | !(is_available_b1 && COMPARE_MV_REFIDX(B0, B1))) { |
376 | 539979 | mergecandlist[nb_merge_cand] = TAB_MVF_PU(B0); | |
377 |
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539979 | if (merge_idx == nb_merge_cand) |
378 | 307370 | return; | |
379 | 232609 | nb_merge_cand++; | |
380 | } | ||
381 | |||
382 | // left bottom spatial merge candidate | ||
383 |
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969857 | is_available_a0 = AVAILABLE(cand_bottom_left, A0) && |
384 |
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1717052 | yA0 < s->ps.sps->height && |
385 |
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3189874 | PRED_BLOCK_AVAILABLE(A0) && |
386 | 343768 | !is_diff_mer(s, xA0, yA0, x0, y0); | |
387 | |||
388 |
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1361491 | if (is_available_a0 && |
389 |
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311927 | !(is_available_a1 && COMPARE_MV_REFIDX(A0, A1))) { |
390 | 145725 | mergecandlist[nb_merge_cand] = TAB_MVF_PU(A0); | |
391 |
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145725 | if (merge_idx == nb_merge_cand) |
392 | 80361 | return; | |
393 | 65364 | nb_merge_cand++; | |
394 | } | ||
395 | |||
396 | // above left spatial merge candidate | ||
397 |
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2312651 | is_available_b2 = AVAILABLE(cand_up_left, B2) && |
398 | 1031521 | !is_diff_mer(s, xB2, yB2, x0, y0); | |
399 | |||
400 |
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1281130 | if (is_available_b2 && |
401 |
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949335 | !(is_available_a1 && COMPARE_MV_REFIDX(B2, A1)) && |
402 |
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604241 | !(is_available_b1 && COMPARE_MV_REFIDX(B2, B1)) && |
403 | nb_merge_cand != 4) { | ||
404 | 390417 | mergecandlist[nb_merge_cand] = TAB_MVF_PU(B2); | |
405 |
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390417 | if (merge_idx == nb_merge_cand) |
406 | 191619 | return; | |
407 | 198798 | nb_merge_cand++; | |
408 | } | ||
409 | |||
410 | // temporal motion vector candidate | ||
411 |
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1089511 | if (s->sh.slice_temporal_mvp_enabled_flag && |
412 |
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850638 | nb_merge_cand < s->sh.max_num_merge_cand) { |
413 | 850638 | Mv mv_l0_col = { 0 }, mv_l1_col = { 0 }; | |
414 | 850638 | int available_l0 = temporal_luma_motion_vector(s, x0, y0, nPbW, nPbH, | |
415 | 0, &mv_l0_col, 0); | ||
416 | 1701276 | int available_l1 = (s->sh.slice_type == HEVC_SLICE_B) ? | |
417 | 759738 | temporal_luma_motion_vector(s, x0, y0, nPbW, nPbH, | |
418 |
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850638 | 0, &mv_l1_col, 1) : 0; |
419 | |||
420 |
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850638 | if (available_l0 || available_l1) { |
421 | 774600 | mergecandlist[nb_merge_cand].pred_flag = available_l0 + (available_l1 << 1); | |
422 | 774600 | AV_ZERO16(mergecandlist[nb_merge_cand].ref_idx); | |
423 | 774600 | mergecandlist[nb_merge_cand].mv[0] = mv_l0_col; | |
424 | 774600 | mergecandlist[nb_merge_cand].mv[1] = mv_l1_col; | |
425 | |||
426 |
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774600 | if (merge_idx == nb_merge_cand) |
427 | 485409 | return; | |
428 | 289191 | nb_merge_cand++; | |
429 | } | ||
430 | } | ||
431 | |||
432 | 604102 | nb_orig_merge_cand = nb_merge_cand; | |
433 | |||
434 | // combined bi-predictive merge candidates (applies for B slices) | ||
435 |
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604102 | if (s->sh.slice_type == HEVC_SLICE_B && nb_orig_merge_cand > 1 && |
436 |
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331237 | nb_orig_merge_cand < s->sh.max_num_merge_cand) { |
437 | 331237 | int comb_idx = 0; | |
438 | |||
439 |
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698876 | for (comb_idx = 0; nb_merge_cand < s->sh.max_num_merge_cand && |
440 |
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1066515 | comb_idx < nb_orig_merge_cand * (nb_orig_merge_cand - 1); comb_idx++) { |
441 | 650515 | int l0_cand_idx = l0_l1_cand_idx[comb_idx][0]; | |
442 | 650515 | int l1_cand_idx = l0_l1_cand_idx[comb_idx][1]; | |
443 | 650515 | MvField l0_cand = mergecandlist[l0_cand_idx]; | |
444 | 650515 | MvField l1_cand = mergecandlist[l1_cand_idx]; | |
445 | |||
446 |
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650515 | if ((l0_cand.pred_flag & PF_L0) && (l1_cand.pred_flag & PF_L1) && |
447 | 432547 | (refPicList[0].list[l0_cand.ref_idx[0]] != | |
448 |
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432547 | refPicList[1].list[l1_cand.ref_idx[1]] || |
449 |
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108522 | AV_RN32A(&l0_cand.mv[0]) != AV_RN32A(&l1_cand.mv[1]))) { |
450 | 418331 | mergecandlist[nb_merge_cand].ref_idx[0] = l0_cand.ref_idx[0]; | |
451 | 418331 | mergecandlist[nb_merge_cand].ref_idx[1] = l1_cand.ref_idx[1]; | |
452 | 418331 | mergecandlist[nb_merge_cand].pred_flag = PF_BI; | |
453 | 418331 | AV_COPY32(&mergecandlist[nb_merge_cand].mv[0], &l0_cand.mv[0]); | |
454 | 418331 | AV_COPY32(&mergecandlist[nb_merge_cand].mv[1], &l1_cand.mv[1]); | |
455 |
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418331 | if (merge_idx == nb_merge_cand) |
456 | 282876 | return; | |
457 | 135455 | nb_merge_cand++; | |
458 | } | ||
459 | } | ||
460 | } | ||
461 | |||
462 | // append Zero motion vector candidates | ||
463 |
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533292 | while (nb_merge_cand < s->sh.max_num_merge_cand) { |
464 |
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533292 | mergecandlist[nb_merge_cand].pred_flag = PF_L0 + ((s->sh.slice_type == HEVC_SLICE_B) << 1); |
465 | 533292 | AV_ZERO32(mergecandlist[nb_merge_cand].mv + 0); | |
466 | 533292 | AV_ZERO32(mergecandlist[nb_merge_cand].mv + 1); | |
467 |
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533292 | mergecandlist[nb_merge_cand].ref_idx[0] = zero_idx < nb_refs ? zero_idx : 0; |
468 |
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533292 | mergecandlist[nb_merge_cand].ref_idx[1] = zero_idx < nb_refs ? zero_idx : 0; |
469 | |||
470 |
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533292 | if (merge_idx == nb_merge_cand) |
471 | 321226 | return; | |
472 | 212066 | nb_merge_cand++; | |
473 | 212066 | zero_idx++; | |
474 | } | ||
475 | } | ||
476 | |||
477 | /* | ||
478 | * 8.5.3.1.1 Derivation process of luma Mvs for merge mode | ||
479 | */ | ||
480 | 6204617 | void ff_hevc_luma_mv_merge_mode(HEVCContext *s, int x0, int y0, int nPbW, | |
481 | int nPbH, int log2_cb_size, int part_idx, | ||
482 | int merge_idx, MvField *mv) | ||
483 | { | ||
484 | 6204617 | int singleMCLFlag = 0; | |
485 | 6204617 | int nCS = 1 << log2_cb_size; | |
486 | MvField mergecand_list[MRG_MAX_NUM_CANDS]; | ||
487 | 6204617 | int nPbW2 = nPbW; | |
488 | 6204617 | int nPbH2 = nPbH; | |
489 | 6204617 | HEVCLocalContext *lc = s->HEVClc; | |
490 | |||
491 |
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6204617 | if (s->ps.pps->log2_parallel_merge_level > 2 && nCS == 8) { |
492 | 214635 | singleMCLFlag = 1; | |
493 | 214635 | x0 = lc->cu.x; | |
494 | 214635 | y0 = lc->cu.y; | |
495 | 214635 | nPbW = nCS; | |
496 | 214635 | nPbH = nCS; | |
497 | 214635 | part_idx = 0; | |
498 | } | ||
499 | |||
500 | 6204617 | ff_hevc_set_neighbour_available(s, x0, y0, nPbW, nPbH); | |
501 | 6204617 | derive_spatial_merge_candidates(s, x0, y0, nPbW, nPbH, log2_cb_size, | |
502 | singleMCLFlag, part_idx, | ||
503 | merge_idx, mergecand_list); | ||
504 | |||
505 |
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6204617 | if (mergecand_list[merge_idx].pred_flag == PF_BI && |
506 |
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3501583 | (nPbW2 + nPbH2) == 12) { |
507 | 124136 | mergecand_list[merge_idx].pred_flag = PF_L0; | |
508 | } | ||
509 | |||
510 | 6204617 | *mv = mergecand_list[merge_idx]; | |
511 | 6204617 | } | |
512 | |||
513 | 1000001 | static av_always_inline void dist_scale(HEVCContext *s, Mv *mv, | |
514 | int min_pu_width, int x, int y, | ||
515 | int elist, int ref_idx_curr, int ref_idx) | ||
516 | { | ||
517 | 1000001 | RefPicList *refPicList = s->ref->refPicList; | |
518 | 1000001 | MvField *tab_mvf = s->ref->tab_mvf; | |
519 | 1000001 | int ref_pic_elist = refPicList[elist].list[TAB_MVF(x, y).ref_idx[elist]]; | |
520 | 1000001 | int ref_pic_curr = refPicList[ref_idx_curr].list[ref_idx]; | |
521 | |||
522 |
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1000001 | if (ref_pic_elist != ref_pic_curr) { |
523 | 842468 | int poc_diff = s->poc - ref_pic_elist; | |
524 |
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842468 | if (!poc_diff) |
525 | ✗ | poc_diff = 1; | |
526 | 842468 | mv_scale(mv, mv, poc_diff, s->poc - ref_pic_curr); | |
527 | } | ||
528 | 1000001 | } | |
529 | |||
530 | 9075896 | static int mv_mp_mode_mx(HEVCContext *s, int x, int y, int pred_flag_index, | |
531 | Mv *mv, int ref_idx_curr, int ref_idx) | ||
532 | { | ||
533 | 9075896 | MvField *tab_mvf = s->ref->tab_mvf; | |
534 | 9075896 | int min_pu_width = s->ps.sps->min_pu_width; | |
535 | |||
536 | 9075896 | RefPicList *refPicList = s->ref->refPicList; | |
537 | |||
538 |
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9075896 | if (((TAB_MVF(x, y).pred_flag) & (1 << pred_flag_index)) && |
539 |
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7045871 | refPicList[pred_flag_index].list[TAB_MVF(x, y).ref_idx[pred_flag_index]] == refPicList[ref_idx_curr].list[ref_idx]) { |
540 | 3721492 | *mv = TAB_MVF(x, y).mv[pred_flag_index]; | |
541 | 3721492 | return 1; | |
542 | } | ||
543 | 5354404 | return 0; | |
544 | } | ||
545 | |||
546 | 1270631 | static int mv_mp_mode_mx_lt(HEVCContext *s, int x, int y, int pred_flag_index, | |
547 | Mv *mv, int ref_idx_curr, int ref_idx) | ||
548 | { | ||
549 | 1270631 | MvField *tab_mvf = s->ref->tab_mvf; | |
550 | 1270631 | int min_pu_width = s->ps.sps->min_pu_width; | |
551 | |||
552 | 1270631 | RefPicList *refPicList = s->ref->refPicList; | |
553 | |||
554 |
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1270631 | if ((TAB_MVF(x, y).pred_flag) & (1 << pred_flag_index)) { |
555 | 1009037 | int currIsLongTerm = refPicList[ref_idx_curr].isLongTerm[ref_idx]; | |
556 | |||
557 | 1009037 | int colIsLongTerm = | |
558 | 1009037 | refPicList[pred_flag_index].isLongTerm[(TAB_MVF(x, y).ref_idx[pred_flag_index])]; | |
559 | |||
560 |
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1009037 | if (colIsLongTerm == currIsLongTerm) { |
561 | 1004320 | *mv = TAB_MVF(x, y).mv[pred_flag_index]; | |
562 |
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1004320 | if (!currIsLongTerm) |
563 | 1000001 | dist_scale(s, mv, min_pu_width, x, y, | |
564 | pred_flag_index, ref_idx_curr, ref_idx); | ||
565 | 1004320 | return 1; | |
566 | } | ||
567 | } | ||
568 | 266311 | return 0; | |
569 | } | ||
570 | |||
571 | #define MP_MX(v, pred, mx) \ | ||
572 | mv_mp_mode_mx(s, \ | ||
573 | (x ## v) >> s->ps.sps->log2_min_pu_size, \ | ||
574 | (y ## v) >> s->ps.sps->log2_min_pu_size, \ | ||
575 | pred, &mx, ref_idx_curr, ref_idx) | ||
576 | |||
577 | #define MP_MX_LT(v, pred, mx) \ | ||
578 | mv_mp_mode_mx_lt(s, \ | ||
579 | (x ## v) >> s->ps.sps->log2_min_pu_size, \ | ||
580 | (y ## v) >> s->ps.sps->log2_min_pu_size, \ | ||
581 | pred, &mx, ref_idx_curr, ref_idx) | ||
582 | |||
583 | 2783351 | void ff_hevc_luma_mv_mvp_mode(HEVCContext *s, int x0, int y0, int nPbW, | |
584 | int nPbH, int log2_cb_size, int part_idx, | ||
585 | int merge_idx, MvField *mv, | ||
586 | int mvp_lx_flag, int LX) | ||
587 | { | ||
588 | 2783351 | HEVCLocalContext *lc = s->HEVClc; | |
589 | 2783351 | MvField *tab_mvf = s->ref->tab_mvf; | |
590 | 2783351 | int isScaledFlag_L0 = 0; | |
591 | 2783351 | int availableFlagLXA0 = 1; | |
592 | 2783351 | int availableFlagLXB0 = 1; | |
593 | 2783351 | int numMVPCandLX = 0; | |
594 | 2783351 | int min_pu_width = s->ps.sps->min_pu_width; | |
595 | |||
596 | int xA0, yA0; | ||
597 | int is_available_a0; | ||
598 | int xA1, yA1; | ||
599 | int is_available_a1; | ||
600 | int xB0, yB0; | ||
601 | int is_available_b0; | ||
602 | int xB1, yB1; | ||
603 | int is_available_b1; | ||
604 | int xB2, yB2; | ||
605 | int is_available_b2; | ||
606 | |||
607 | 2783351 | Mv mvpcand_list[2] = { { 0 } }; | |
608 | Mv mxA; | ||
609 | Mv mxB; | ||
610 | int ref_idx_curr; | ||
611 | 2783351 | int ref_idx = 0; | |
612 | int pred_flag_index_l0; | ||
613 | int pred_flag_index_l1; | ||
614 | |||
615 | 2783351 | const int cand_bottom_left = lc->na.cand_bottom_left; | |
616 | 2783351 | const int cand_left = lc->na.cand_left; | |
617 | 2783351 | const int cand_up_left = lc->na.cand_up_left; | |
618 | 2783351 | const int cand_up = lc->na.cand_up; | |
619 | 2783351 | const int cand_up_right = lc->na.cand_up_right_sap; | |
620 | 2783351 | ref_idx_curr = LX; | |
621 | 2783351 | ref_idx = mv->ref_idx[LX]; | |
622 | 2783351 | pred_flag_index_l0 = LX; | |
623 | 2783351 | pred_flag_index_l1 = !LX; | |
624 | |||
625 | // left bottom spatial candidate | ||
626 | 2783351 | xA0 = x0 - 1; | |
627 | 2783351 | yA0 = y0 + nPbH; | |
628 | |||
629 |
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1947031 | is_available_a0 = AVAILABLE(cand_bottom_left, A0) && |
630 |
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6386480 | yA0 < s->ps.sps->height && |
631 | 1656098 | PRED_BLOCK_AVAILABLE(A0); | |
632 | |||
633 | //left spatial merge candidate | ||
634 | 2783351 | xA1 = x0 - 1; | |
635 | 2783351 | yA1 = y0 + nPbH - 1; | |
636 | |||
637 |
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2783351 | is_available_a1 = AVAILABLE(cand_left, A1); |
638 |
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2783351 | if (is_available_a0 || is_available_a1) |
639 | 2481097 | isScaledFlag_L0 = 1; | |
640 | |||
641 |
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2783351 | if (is_available_a0) { |
642 |
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731769 | if (MP_MX(A0, pred_flag_index_l0, mxA)) { |
643 | 445876 | goto b_candidates; | |
644 | } | ||
645 |
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|
285893 | if (MP_MX(A0, pred_flag_index_l1, mxA)) { |
646 | 47482 | goto b_candidates; | |
647 | } | ||
648 | } | ||
649 | |||
650 |
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|
2289993 | if (is_available_a1) { |
651 |
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|
1978419 | if (MP_MX(A1, pred_flag_index_l0, mxA)) { |
652 | 1116988 | goto b_candidates; | |
653 | } | ||
654 |
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|
861431 | if (MP_MX(A1, pred_flag_index_l1, mxA)) { |
655 | 113885 | goto b_candidates; | |
656 | } | ||
657 | } | ||
658 | |||
659 |
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|
1059120 | if (is_available_a0) { |
660 |
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|
193548 | if (MP_MX_LT(A0, pred_flag_index_l0, mxA)) { |
661 | 141520 | goto b_candidates; | |
662 | } | ||
663 |
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|
52028 | if (MP_MX_LT(A0, pred_flag_index_l1, mxA)) { |
664 | 51206 | goto b_candidates; | |
665 | } | ||
666 | } | ||
667 | |||
668 |
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|
866394 | if (is_available_a1) { |
669 |
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|
563922 | if (MP_MX_LT(A1, pred_flag_index_l0, mxA)) { |
670 | 384680 | goto b_candidates; | |
671 | } | ||
672 |
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|
179242 | if (MP_MX_LT(A1, pred_flag_index_l1, mxA)) { |
673 | 176473 | goto b_candidates; | |
674 | } | ||
675 | } | ||
676 | 305241 | availableFlagLXA0 = 0; | |
677 | |||
678 | 2783351 | b_candidates: | |
679 | // B candidates | ||
680 | // above right spatial merge candidate | ||
681 | 2783351 | xB0 = x0 + nPbW; | |
682 | 2783351 | yB0 = y0 - 1; | |
683 | |||
684 |
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2131641 | is_available_b0 = AVAILABLE(cand_up_right, B0) && |
685 |
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|
6777222 | xB0 < s->ps.sps->width && |
686 | 1862230 | PRED_BLOCK_AVAILABLE(B0); | |
687 | |||
688 | // above spatial merge candidate | ||
689 | 2783351 | xB1 = x0 + nPbW - 1; | |
690 | 2783351 | yB1 = y0 - 1; | |
691 |
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2783351 | is_available_b1 = AVAILABLE(cand_up, B1); |
692 | |||
693 | // above left spatial merge candidate | ||
694 | 2783351 | xB2 = x0 - 1; | |
695 | 2783351 | yB2 = y0 - 1; | |
696 |
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|
2783351 | is_available_b2 = AVAILABLE(cand_up_left, B2); |
697 | |||
698 | // above right spatial merge candidate | ||
699 |
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|
2783351 | if (is_available_b0) { |
700 |
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|
1460702 | if (MP_MX(B0, pred_flag_index_l0, mxB)) { |
701 | 909090 | goto scalef; | |
702 | } | ||
703 |
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|
551612 | if (MP_MX(B0, pred_flag_index_l1, mxB)) { |
704 | 93879 | goto scalef; | |
705 | } | ||
706 | } | ||
707 | |||
708 | // above spatial merge candidate | ||
709 |
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|
1780382 | if (is_available_b1) { |
710 |
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|
1406546 | if (MP_MX(B1, pred_flag_index_l0, mxB)) { |
711 | 712458 | goto scalef; | |
712 | } | ||
713 |
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|
694088 | if (MP_MX(B1, pred_flag_index_l1, mxB)) { |
714 | 71087 | goto scalef; | |
715 | } | ||
716 | } | ||
717 | |||
718 | // above left spatial merge candidate | ||
719 |
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|
996837 | if (is_available_b2) { |
720 |
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|
646172 | if (MP_MX(B2, pred_flag_index_l0, mxB)) { |
721 | 186908 | goto scalef; | |
722 | } | ||
723 |
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|
459264 | if (MP_MX(B2, pred_flag_index_l1, mxB)) { |
724 | 23839 | goto scalef; | |
725 | } | ||
726 | } | ||
727 | 786090 | availableFlagLXB0 = 0; | |
728 | |||
729 | 2783351 | scalef: | |
730 |
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|
2783351 | if (!isScaledFlag_L0) { |
731 |
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|
302254 | if (availableFlagLXB0) { |
732 | 185324 | availableFlagLXA0 = 1; | |
733 | 185324 | mxA = mxB; | |
734 | } | ||
735 | 302254 | availableFlagLXB0 = 0; | |
736 | |||
737 | // XB0 and L1 | ||
738 |
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|
302254 | if (is_available_b0) { |
739 | 138981 | availableFlagLXB0 = MP_MX_LT(B0, pred_flag_index_l0, mxB); | |
740 |
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|
138981 | if (!availableFlagLXB0) |
741 | 16172 | availableFlagLXB0 = MP_MX_LT(B0, pred_flag_index_l1, mxB); | |
742 | } | ||
743 | |||
744 |
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302254 | if (is_available_b1 && !availableFlagLXB0) { |
745 | 98140 | availableFlagLXB0 = MP_MX_LT(B1, pred_flag_index_l0, mxB); | |
746 |
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|
98140 | if (!availableFlagLXB0) |
747 | 12532 | availableFlagLXB0 = MP_MX_LT(B1, pred_flag_index_l1, mxB); | |
748 | } | ||
749 | |||
750 |
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|
302254 | if (is_available_b2 && !availableFlagLXB0) { |
751 | 14353 | availableFlagLXB0 = MP_MX_LT(B2, pred_flag_index_l0, mxB); | |
752 |
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|
14353 | if (!availableFlagLXB0) |
753 | 1713 | availableFlagLXB0 = MP_MX_LT(B2, pred_flag_index_l1, mxB); | |
754 | } | ||
755 | } | ||
756 | |||
757 |
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|
2783351 | if (availableFlagLXA0) |
758 | 2663434 | mvpcand_list[numMVPCandLX++] = mxA; | |
759 | |||
760 |
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|
2783351 | if (availableFlagLXB0 && (!availableFlagLXA0 || mxA.x != mxB.x || mxA.y != mxB.y)) |
761 | 1509571 | mvpcand_list[numMVPCandLX++] = mxB; | |
762 | |||
763 | //temporal motion vector prediction candidate | ||
764 |
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|
2783351 | if (numMVPCandLX < 2 && s->sh.slice_temporal_mvp_enabled_flag && |
765 | mvp_lx_flag == numMVPCandLX) { | ||
766 | Mv mv_col; | ||
767 | 389558 | int available_col = temporal_luma_motion_vector(s, x0, y0, nPbW, | |
768 | nPbH, ref_idx, | ||
769 | &mv_col, LX); | ||
770 |
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|
389558 | if (available_col) |
771 | 321087 | mvpcand_list[numMVPCandLX++] = mv_col; | |
772 | } | ||
773 | |||
774 | 2783351 | mv->mv[LX] = mvpcand_list[mvp_lx_flag]; | |
775 | 2783351 | } | |
776 |