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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 "progressframe.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 | 30375237 | void ff_hevc_set_neighbour_available(HEVCLocalContext *lc, int x0, int y0, | |
44 | int nPbW, int nPbH, int log2_ctb_size) | ||
45 | { | ||
46 | 30375237 | int x0b = av_zero_extend(x0, log2_ctb_size); | |
47 | 30375237 | int y0b = av_zero_extend(y0, log2_ctb_size); | |
48 | |||
49 |
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30375237 | lc->na.cand_up = (lc->ctb_up_flag || y0b); |
50 |
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30375237 | lc->na.cand_left = (lc->ctb_left_flag || x0b); |
51 |
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30375237 | lc->na.cand_up_left = (x0b || y0b) ? lc->na.cand_left && lc->na.cand_up : lc->ctb_up_left_flag; |
52 | 30375237 | lc->na.cand_up_right_sap = | |
53 | 30375237 | (x0b + nPbW == 1 << log2_ctb_size) ? | |
54 |
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30375237 | lc->ctb_up_right_flag && !y0b : lc->na.cand_up; |
55 | 30375237 | lc->na.cand_up_right = | |
56 | 30375237 | lc->na.cand_up_right_sap | |
57 |
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30375237 | && (x0 + nPbW) < lc->end_of_tiles_x; |
58 |
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30375237 | lc->na.cand_bottom_left = ((y0 + nPbH) >= lc->end_of_tiles_y) ? 0 : lc->na.cand_left; |
59 | 30375237 | } | |
60 | |||
61 | /* | ||
62 | * 6.4.1 Derivation process for z-scan order block availability | ||
63 | */ | ||
64 | static av_always_inline int | ||
65 | 5600064 | z_scan_block_avail(const HEVCPPS *pps, const HEVCSPS *sps, | |
66 | int xCurr, int yCurr, int xN, int yN) | ||
67 | { | ||
68 | #define MIN_TB_ADDR_ZS(x, y) \ | ||
69 | pps->min_tb_addr_zs[(y) * (sps->tb_mask+2) + (x)] | ||
70 | |||
71 | 5600064 | int xCurr_ctb = xCurr >> sps->log2_ctb_size; | |
72 | 5600064 | int yCurr_ctb = yCurr >> sps->log2_ctb_size; | |
73 | 5600064 | int xN_ctb = xN >> sps->log2_ctb_size; | |
74 | 5600064 | int yN_ctb = yN >> sps->log2_ctb_size; | |
75 |
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5600064 | if( yN_ctb < yCurr_ctb || xN_ctb < xCurr_ctb ) |
76 | 1516887 | return 1; | |
77 | else { | ||
78 | 4083177 | int Curr = MIN_TB_ADDR_ZS((xCurr >> sps->log2_min_tb_size) & sps->tb_mask, | |
79 | (yCurr >> sps->log2_min_tb_size) & sps->tb_mask); | ||
80 | 4083177 | int N = MIN_TB_ADDR_ZS((xN >> sps->log2_min_tb_size) & sps->tb_mask, | |
81 | (yN >> sps->log2_min_tb_size) & sps->tb_mask); | ||
82 | 4083177 | return N <= Curr; | |
83 | } | ||
84 | } | ||
85 | |||
86 | //check if the two luma locations belong to the same motion estimation region | ||
87 | 11763871 | static av_always_inline int is_diff_mer(const HEVCPPS *pps, int xN, int yN, int xP, int yP) | |
88 | { | ||
89 | 11763871 | uint8_t plevel = pps->log2_parallel_merge_level; | |
90 | |||
91 |
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12527998 | return xN >> plevel == xP >> plevel && |
92 |
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764127 | 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 | 4637859 | static av_always_inline int compare_mv_ref_idx(struct MvField A, struct MvField B) | |
100 | { | ||
101 | 4637859 | int a_pf = A.pred_flag; | |
102 | 4637859 | int b_pf = B.pred_flag; | |
103 |
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4637859 | if (a_pf == b_pf) { |
104 |
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3446909 | if (a_pf == PF_BI) { |
105 |
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1674403 | return MATCH(ref_idx[0]) && MATCH_MV(mv[0]) && |
106 |
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3525488 | MATCH(ref_idx[1]) && MATCH_MV(mv[1]); |
107 |
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1595824 | } else if (a_pf == PF_L0) { |
108 |
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1402124 | return MATCH(ref_idx[0]) && MATCH_MV(mv[0]); |
109 |
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193700 | } else if (a_pf == PF_L1) { |
110 |
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193700 | return MATCH(ref_idx[1]) && MATCH_MV(mv[1]); |
111 | } | ||
112 | } | ||
113 | 1190950 | return 0; | |
114 | } | ||
115 | |||
116 | 2389773 | static av_always_inline void mv_scale(Mv *dst, const Mv *src, int td, int tb) | |
117 | { | ||
118 | int tx, scale_factor; | ||
119 | |||
120 | 2389773 | td = av_clip_int8(td); | |
121 | 2389773 | tb = av_clip_int8(tb); | |
122 | 2389773 | tx = (0x4000 + abs(td / 2)) / td; | |
123 | 2389773 | scale_factor = av_clip_intp2((tb * tx + 32) >> 6, 12); | |
124 | 2389773 | dst->x = av_clip_int16((scale_factor * src->x + 127 + | |
125 | 2389773 | (scale_factor * src->x < 0)) >> 8); | |
126 | 2389773 | dst->y = av_clip_int16((scale_factor * src->y + 127 + | |
127 | 2389773 | (scale_factor * src->y < 0)) >> 8); | |
128 | 2389773 | } | |
129 | |||
130 | 1866581 | static int check_mvset(Mv *mvLXCol, const Mv *mvCol, | |
131 | int colPic, int poc, | ||
132 | const RefPicList *refPicList, int X, int refIdxLx, | ||
133 | const RefPicList *refPicList_col, int listCol, int refidxCol) | ||
134 | { | ||
135 | 1866581 | int cur_lt = refPicList[X].isLongTerm[refIdxLx]; | |
136 | 1866581 | int col_lt = refPicList_col[listCol].isLongTerm[refidxCol]; | |
137 | int col_poc_diff, cur_poc_diff; | ||
138 | |||
139 |
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1866581 | if (cur_lt != col_lt) { |
140 | 11053 | mvLXCol->x = 0; | |
141 | 11053 | mvLXCol->y = 0; | |
142 | 11053 | return 0; | |
143 | } | ||
144 | |||
145 | 1855528 | col_poc_diff = colPic - refPicList_col[listCol].list[refidxCol]; | |
146 | 1855528 | cur_poc_diff = poc - refPicList[X].list[refIdxLx]; | |
147 | |||
148 |
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1855528 | if (cur_lt || col_poc_diff == cur_poc_diff || !col_poc_diff) { |
149 | 341412 | mvLXCol->x = mvCol->x; | |
150 | 341412 | mvLXCol->y = mvCol->y; | |
151 | } else { | ||
152 | 1514116 | mv_scale(mvLXCol, mvCol, col_poc_diff, cur_poc_diff); | |
153 | } | ||
154 | 1855528 | 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 | 2338158 | static int derive_temporal_colocated_mvs(const HEVCContext *s, MvField temp_col, | |
165 | int refIdxLx, Mv *mvLXCol, int X, | ||
166 | int colPic, const RefPicList *refPicList_col) | ||
167 | { | ||
168 | 2338158 | const RefPicList *refPicList = s->cur_frame->refPicList; | |
169 | |||
170 |
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2338158 | if (temp_col.pred_flag == PF_INTRA) |
171 | 471577 | return 0; | |
172 | |||
173 |
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1866581 | if (!(temp_col.pred_flag & PF_L0)) |
174 | 216834 | return CHECK_MVSET(1); | |
175 |
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1649747 | else if (temp_col.pred_flag == PF_L0) |
176 | 784783 | return CHECK_MVSET(0); | |
177 |
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864964 | else if (temp_col.pred_flag == PF_BI) { |
178 | 864964 | int check_diffpicount = 0; | |
179 | int i, j; | ||
180 |
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2594892 | for (j = 0; j < 2; j++) { |
181 |
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4642406 | for (i = 0; i < refPicList[j].nb_refs; i++) { |
182 |
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3688614 | if (refPicList[j].list[i] > s->poc) { |
183 | 776136 | check_diffpicount++; | |
184 | 776136 | break; | |
185 | } | ||
186 | } | ||
187 | } | ||
188 |
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864964 | if (!check_diffpicount) { |
189 |
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243486 | if (X==0) |
190 | 137027 | return CHECK_MVSET(0); | |
191 | else | ||
192 | 106459 | return CHECK_MVSET(1); | |
193 | } else { | ||
194 |
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621478 | if (s->sh.collocated_list == L1) |
195 | 347167 | return CHECK_MVSET(0); | |
196 | else | ||
197 | 274311 | 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) >> sps->log2_min_pu_size), \ | ||
209 | ((y ## v) >> 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(ref, x, y)) | ||
215 | |||
216 | /* | ||
217 | * 8.5.3.1.7 temporal luma motion vector prediction | ||
218 | */ | ||
219 | 2091012 | static int temporal_luma_motion_vector(const HEVCContext *s, const HEVCSPS *sps, | |
220 | int x0, int y0, | ||
221 | int nPbW, int nPbH, int refIdxLx, | ||
222 | Mv *mvLXCol, int X) | ||
223 | { | ||
224 | const MvField *tab_mvf; | ||
225 | MvField temp_col; | ||
226 | int x, y, x_pu, y_pu; | ||
227 | 2091012 | int min_pu_width = sps->min_pu_width; | |
228 | 2091012 | int availableFlagLXCol = 0; | |
229 | int colPic; | ||
230 | |||
231 | 2091012 | const HEVCFrame *ref = s->collocated_ref; | |
232 | |||
233 |
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2091012 | if (!ref) { |
234 | ✗ | memset(mvLXCol, 0, sizeof(*mvLXCol)); | |
235 | ✗ | return 0; | |
236 | } | ||
237 | |||
238 | 2091012 | tab_mvf = ref->tab_mvf; | |
239 | 2091012 | colPic = ref->poc; | |
240 | |||
241 | //bottom right collocated motion vector | ||
242 | 2091012 | x = x0 + nPbW; | |
243 | 2091012 | y = y0 + nPbH; | |
244 | |||
245 |
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2091012 | if (tab_mvf && |
246 |
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2091012 | (y0 >> sps->log2_ctb_size) == (y >> sps->log2_ctb_size) && |
247 |
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1490716 | y < sps->height && |
248 |
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1443451 | x < sps->width) { |
249 | 1420862 | x &= ~15; | |
250 | 1420862 | y &= ~15; | |
251 |
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1420862 | if (s->avctx->active_thread_type == FF_THREAD_FRAME) |
252 | 1443 | ff_progress_frame_await(&ref->tf, y); | |
253 | 1420862 | x_pu = x >> sps->log2_min_pu_size; | |
254 | 1420862 | y_pu = y >> sps->log2_min_pu_size; | |
255 | 1420862 | temp_col = TAB_MVF(x_pu, y_pu); | |
256 | 1420862 | availableFlagLXCol = DERIVE_TEMPORAL_COLOCATED_MVS; | |
257 | } | ||
258 | |||
259 | // derive center collocated motion vector | ||
260 |
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2091012 | if (tab_mvf && !availableFlagLXCol) { |
261 | 917296 | x = x0 + (nPbW >> 1); | |
262 | 917296 | y = y0 + (nPbH >> 1); | |
263 | 917296 | x &= ~15; | |
264 | 917296 | y &= ~15; | |
265 |
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917296 | if (s->avctx->active_thread_type == FF_THREAD_FRAME) |
266 | 1167 | ff_progress_frame_await(&ref->tf, y); | |
267 | 917296 | x_pu = x >> sps->log2_min_pu_size; | |
268 | 917296 | y_pu = y >> sps->log2_min_pu_size; | |
269 | 917296 | temp_col = TAB_MVF(x_pu, y_pu); | |
270 | 917296 | availableFlagLXCol = DERIVE_TEMPORAL_COLOCATED_MVS; | |
271 | } | ||
272 | 2091012 | return availableFlagLXCol; | |
273 | } | ||
274 | |||
275 | #define AVAILABLE(cand, v) \ | ||
276 | (cand && !(TAB_MVF_PU(v).pred_flag == PF_INTRA)) | ||
277 | |||
278 | #define PRED_BLOCK_AVAILABLE(v) \ | ||
279 | z_scan_block_avail(pps, sps, x0, y0, x ## v, y ## v) | ||
280 | |||
281 | #define COMPARE_MV_REFIDX(a, b) \ | ||
282 | compare_mv_ref_idx(TAB_MVF_PU(a), TAB_MVF_PU(b)) | ||
283 | |||
284 | /* | ||
285 | * 8.5.3.1.2 Derivation process for spatial merging candidates | ||
286 | */ | ||
287 | 6626759 | static void derive_spatial_merge_candidates(HEVCLocalContext *lc, const HEVCContext *s, | |
288 | const HEVCPPS *pps, const HEVCSPS *sps, | ||
289 | int x0, int y0, | ||
290 | int nPbW, int nPbH, | ||
291 | int log2_cb_size, | ||
292 | int singleMCLFlag, int part_idx, | ||
293 | int merge_idx, | ||
294 | struct MvField mergecandlist[]) | ||
295 | { | ||
296 | 6626759 | const RefPicList *refPicList = s->cur_frame->refPicList; | |
297 | 6626759 | const MvField *tab_mvf = s->cur_frame->tab_mvf; | |
298 | |||
299 | 6626759 | const int min_pu_width = sps->min_pu_width; | |
300 | |||
301 | 6626759 | const int cand_bottom_left = lc->na.cand_bottom_left; | |
302 | 6626759 | const int cand_left = lc->na.cand_left; | |
303 | 6626759 | const int cand_up_left = lc->na.cand_up_left; | |
304 | 6626759 | const int cand_up = lc->na.cand_up; | |
305 | 6626759 | const int cand_up_right = lc->na.cand_up_right_sap; | |
306 | |||
307 | 6626759 | const int xA1 = x0 - 1; | |
308 | 6626759 | const int yA1 = y0 + nPbH - 1; | |
309 | |||
310 | 6626759 | const int xB1 = x0 + nPbW - 1; | |
311 | 6626759 | const int yB1 = y0 - 1; | |
312 | |||
313 | 6626759 | const int xB0 = x0 + nPbW; | |
314 | 6626759 | const int yB0 = y0 - 1; | |
315 | |||
316 | 6626759 | const int xA0 = x0 - 1; | |
317 | 6626759 | const int yA0 = y0 + nPbH; | |
318 | |||
319 | 6626759 | const int xB2 = x0 - 1; | |
320 | 6626759 | const int yB2 = y0 - 1; | |
321 | |||
322 | 13253518 | const int nb_refs = (s->sh.slice_type == HEVC_SLICE_P) ? | |
323 |
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6626759 | s->sh.nb_refs[0] : FFMIN(s->sh.nb_refs[0], s->sh.nb_refs[1]); |
324 | |||
325 | 6626759 | int zero_idx = 0; | |
326 | |||
327 | 6626759 | int nb_merge_cand = 0; | |
328 | 6626759 | int nb_orig_merge_cand = 0; | |
329 | |||
330 | int is_available_a0; | ||
331 | int is_available_a1; | ||
332 | int is_available_b0; | ||
333 | int is_available_b1; | ||
334 | int is_available_b2; | ||
335 | |||
336 | |||
337 |
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6626759 | if (!singleMCLFlag && part_idx == 1 && |
338 |
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701540 | (lc->cu.part_mode == PART_Nx2N || |
339 |
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422700 | lc->cu.part_mode == PART_nLx2N || |
340 |
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6617379 | lc->cu.part_mode == PART_nRx2N) || |
341 | 6244759 | is_diff_mer(pps, xA1, yA1, x0, y0)) { | |
342 | 520388 | is_available_a1 = 0; | |
343 | } else { | ||
344 |
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6106371 | is_available_a1 = AVAILABLE(cand_left, A1); |
345 |
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6106371 | if (is_available_a1) { |
346 | 5701857 | mergecandlist[nb_merge_cand] = TAB_MVF_PU(A1); | |
347 |
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5701857 | if (merge_idx == 0) |
348 | 3419288 | return; | |
349 | 2282569 | nb_merge_cand++; | |
350 | } | ||
351 | } | ||
352 | |||
353 |
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3207471 | if (!singleMCLFlag && part_idx == 1 && |
354 |
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548282 | (lc->cu.part_mode == PART_2NxN || |
355 |
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452768 | lc->cu.part_mode == PART_2NxnU || |
356 |
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3514297 | lc->cu.part_mode == PART_2NxnD) || |
357 | 3077874 | is_diff_mer(pps, xB1, yB1, x0, y0)) { | |
358 | 257458 | is_available_b1 = 0; | |
359 | } else { | ||
360 |
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2950013 | is_available_b1 = AVAILABLE(cand_up, B1); |
361 |
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2950013 | if (is_available_b1 && |
362 |
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2022638 | !(is_available_a1 && COMPARE_MV_REFIDX(B1, A1))) { |
363 | 2367040 | mergecandlist[nb_merge_cand] = TAB_MVF_PU(B1); | |
364 |
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2367040 | if (merge_idx == nb_merge_cand) |
365 | 1466426 | return; | |
366 | 900614 | nb_merge_cand++; | |
367 | } | ||
368 | } | ||
369 | |||
370 | // above right spatial merge candidate | ||
371 |
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1385527 | is_available_b0 = AVAILABLE(cand_up_right, B0) && |
372 |
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2431573 | xB0 < sps->width && |
373 |
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4337880 | PRED_BLOCK_AVAILABLE(B0) && |
374 | 1011624 | !is_diff_mer(pps, xB0, yB0, x0, y0); | |
375 | |||
376 |
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1741045 | if (is_available_b0 && |
377 |
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900646 | !(is_available_b1 && COMPARE_MV_REFIDX(B0, B1))) { |
378 | 570879 | mergecandlist[nb_merge_cand] = TAB_MVF_PU(B0); | |
379 |
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570879 | if (merge_idx == nb_merge_cand) |
380 | 326827 | return; | |
381 | 244052 | nb_merge_cand++; | |
382 | } | ||
383 | |||
384 | // left bottom spatial merge candidate | ||
385 |
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1000746 | is_available_a0 = AVAILABLE(cand_bottom_left, A0) && |
386 |
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1608352 | yA0 < sps->height && |
387 |
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3219140 | PRED_BLOCK_AVAILABLE(A0) && |
388 | 356021 | !is_diff_mer(pps, xA0, yA0, x0, y0); | |
389 | |||
390 |
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1414218 | if (is_available_a0 && |
391 |
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323359 | !(is_available_a1 && COMPARE_MV_REFIDX(A0, A1))) { |
392 | 151537 | mergecandlist[nb_merge_cand] = TAB_MVF_PU(A0); | |
393 |
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151537 | if (merge_idx == nb_merge_cand) |
394 | 84008 | return; | |
395 | 67529 | nb_merge_cand++; | |
396 | } | ||
397 | |||
398 | // above left spatial merge candidate | ||
399 |
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2403803 | is_available_b2 = AVAILABLE(cand_up_left, B2) && |
400 | 1073593 | !is_diff_mer(pps, xB2, yB2, x0, y0); | |
401 | |||
402 |
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1330210 | if (is_available_b2 && |
403 |
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991407 | !(is_available_a1 && COMPARE_MV_REFIDX(B2, A1)) && |
404 |
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632491 | !(is_available_b1 && COMPARE_MV_REFIDX(B2, B1)) && |
405 | nb_merge_cand != 4) { | ||
406 | 409109 | mergecandlist[nb_merge_cand] = TAB_MVF_PU(B2); | |
407 |
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409109 | if (merge_idx == nb_merge_cand) |
408 | 202128 | return; | |
409 | 206981 | nb_merge_cand++; | |
410 | } | ||
411 | |||
412 | // temporal motion vector candidate | ||
413 |
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1128082 | if (s->sh.slice_temporal_mvp_enabled_flag && |
414 |
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886342 | nb_merge_cand < s->sh.max_num_merge_cand) { |
415 | 886342 | Mv mv_l0_col = { 0 }, mv_l1_col = { 0 }; | |
416 | 886342 | int available_l0 = temporal_luma_motion_vector(s, sps, x0, y0, nPbW, nPbH, | |
417 | 0, &mv_l0_col, 0); | ||
418 | 1772684 | int available_l1 = (s->sh.slice_type == HEVC_SLICE_B) ? | |
419 | 793798 | temporal_luma_motion_vector(s, sps, x0, y0, nPbW, nPbH, | |
420 |
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886342 | 0, &mv_l1_col, 1) : 0; |
421 | |||
422 |
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886342 | if (available_l0 || available_l1) { |
423 | 802847 | mergecandlist[nb_merge_cand].pred_flag = available_l0 + (available_l1 << 1); | |
424 | 802847 | AV_ZERO16(mergecandlist[nb_merge_cand].ref_idx); | |
425 | 802847 | mergecandlist[nb_merge_cand].mv[0] = mv_l0_col; | |
426 | 802847 | mergecandlist[nb_merge_cand].mv[1] = mv_l1_col; | |
427 | |||
428 |
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802847 | if (merge_idx == nb_merge_cand) |
429 | 501937 | return; | |
430 | 300910 | nb_merge_cand++; | |
431 | } | ||
432 | } | ||
433 | |||
434 | 626145 | nb_orig_merge_cand = nb_merge_cand; | |
435 | |||
436 | // combined bi-predictive merge candidates (applies for B slices) | ||
437 |
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626145 | if (s->sh.slice_type == HEVC_SLICE_B && nb_orig_merge_cand > 1 && |
438 |
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347883 | nb_orig_merge_cand < s->sh.max_num_merge_cand) { |
439 | 347883 | int comb_idx = 0; | |
440 | |||
441 |
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737467 | for (comb_idx = 0; nb_merge_cand < s->sh.max_num_merge_cand && |
442 |
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1127051 | comb_idx < nb_orig_merge_cand * (nb_orig_merge_cand - 1); comb_idx++) { |
443 | 686136 | int l0_cand_idx = l0_l1_cand_idx[comb_idx][0]; | |
444 | 686136 | int l1_cand_idx = l0_l1_cand_idx[comb_idx][1]; | |
445 | 686136 | MvField l0_cand = mergecandlist[l0_cand_idx]; | |
446 | 686136 | MvField l1_cand = mergecandlist[l1_cand_idx]; | |
447 | |||
448 |
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686136 | if ((l0_cand.pred_flag & PF_L0) && (l1_cand.pred_flag & PF_L1) && |
449 | 453349 | (refPicList[0].list[l0_cand.ref_idx[0]] != | |
450 |
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453349 | refPicList[1].list[l1_cand.ref_idx[1]] || |
451 |
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113371 | AV_RN32A(&l0_cand.mv[0]) != AV_RN32A(&l1_cand.mv[1]))) { |
452 | 438862 | mergecandlist[nb_merge_cand].ref_idx[0] = l0_cand.ref_idx[0]; | |
453 | 438862 | mergecandlist[nb_merge_cand].ref_idx[1] = l1_cand.ref_idx[1]; | |
454 | 438862 | mergecandlist[nb_merge_cand].pred_flag = PF_BI; | |
455 | 438862 | AV_COPY32(&mergecandlist[nb_merge_cand].mv[0], &l0_cand.mv[0]); | |
456 | 438862 | AV_COPY32(&mergecandlist[nb_merge_cand].mv[1], &l1_cand.mv[1]); | |
457 |
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438862 | if (merge_idx == nb_merge_cand) |
458 | 296552 | return; | |
459 | 142310 | nb_merge_cand++; | |
460 | } | ||
461 | } | ||
462 | } | ||
463 | |||
464 | // append Zero motion vector candidates | ||
465 |
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542936 | while (nb_merge_cand < s->sh.max_num_merge_cand) { |
466 |
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542936 | mergecandlist[nb_merge_cand].pred_flag = PF_L0 + ((s->sh.slice_type == HEVC_SLICE_B) << 1); |
467 | 542936 | AV_ZERO32(mergecandlist[nb_merge_cand].mv + 0); | |
468 | 542936 | AV_ZERO32(mergecandlist[nb_merge_cand].mv + 1); | |
469 |
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542936 | mergecandlist[nb_merge_cand].ref_idx[0] = zero_idx < nb_refs ? zero_idx : 0; |
470 |
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542936 | mergecandlist[nb_merge_cand].ref_idx[1] = zero_idx < nb_refs ? zero_idx : 0; |
471 | |||
472 |
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542936 | if (merge_idx == nb_merge_cand) |
473 | 329593 | return; | |
474 | 213343 | nb_merge_cand++; | |
475 | 213343 | zero_idx++; | |
476 | } | ||
477 | } | ||
478 | |||
479 | /* | ||
480 | * 8.5.3.1.1 Derivation process of luma Mvs for merge mode | ||
481 | */ | ||
482 | 6626759 | void ff_hevc_luma_mv_merge_mode(HEVCLocalContext *lc, const HEVCPPS *pps, | |
483 | int x0, int y0, int nPbW, | ||
484 | int nPbH, int log2_cb_size, int part_idx, | ||
485 | int merge_idx, MvField *mv) | ||
486 | { | ||
487 | 6626759 | const HEVCSPS *const sps = pps->sps; | |
488 | 6626759 | const HEVCContext *const s = lc->parent; | |
489 | 6626759 | int singleMCLFlag = 0; | |
490 | 6626759 | int nCS = 1 << log2_cb_size; | |
491 | MvField mergecand_list[MRG_MAX_NUM_CANDS]; | ||
492 | 6626759 | int nPbW2 = nPbW; | |
493 | 6626759 | int nPbH2 = nPbH; | |
494 | |||
495 |
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6626759 | if (pps->log2_parallel_merge_level > 2 && nCS == 8) { |
496 | 214635 | singleMCLFlag = 1; | |
497 | 214635 | x0 = lc->cu.x; | |
498 | 214635 | y0 = lc->cu.y; | |
499 | 214635 | nPbW = nCS; | |
500 | 214635 | nPbH = nCS; | |
501 | 214635 | part_idx = 0; | |
502 | } | ||
503 | |||
504 | 6626759 | ff_hevc_set_neighbour_available(lc, x0, y0, nPbW, nPbH, sps->log2_ctb_size); | |
505 | 6626759 | derive_spatial_merge_candidates(lc, s, pps, sps, x0, y0, nPbW, nPbH, log2_cb_size, | |
506 | singleMCLFlag, part_idx, | ||
507 | merge_idx, mergecand_list); | ||
508 | |||
509 |
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6626759 | if (mergecand_list[merge_idx].pred_flag == PF_BI && |
510 |
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3688340 | (nPbW2 + nPbH2) == 12) { |
511 | 128138 | mergecand_list[merge_idx].pred_flag = PF_L0; | |
512 | } | ||
513 | |||
514 | 6626759 | *mv = mergecand_list[merge_idx]; | |
515 | 6626759 | } | |
516 | |||
517 | 1045888 | static av_always_inline void dist_scale(const HEVCContext *s, Mv *mv, | |
518 | int min_pu_width, int x, int y, | ||
519 | int elist, int ref_idx_curr, int ref_idx) | ||
520 | { | ||
521 | 1045888 | const RefPicList *refPicList = s->cur_frame->refPicList; | |
522 | 1045888 | const MvField *tab_mvf = s->cur_frame->tab_mvf; | |
523 | 1045888 | int ref_pic_elist = refPicList[elist].list[TAB_MVF(x, y).ref_idx[elist]]; | |
524 | 1045888 | int ref_pic_curr = refPicList[ref_idx_curr].list[ref_idx]; | |
525 | |||
526 |
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1045888 | if (ref_pic_elist != ref_pic_curr) { |
527 | 875657 | int poc_diff = s->poc - ref_pic_elist; | |
528 |
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875657 | if (!poc_diff) |
529 | ✗ | poc_diff = 1; | |
530 | 875657 | mv_scale(mv, mv, poc_diff, s->poc - ref_pic_curr); | |
531 | } | ||
532 | 1045888 | } | |
533 | |||
534 | 9609032 | static int mv_mp_mode_mx(const HEVCContext *s, const HEVCSPS *sps, | |
535 | int x, int y, int pred_flag_index, | ||
536 | Mv *mv, int ref_idx_curr, int ref_idx) | ||
537 | { | ||
538 | 9609032 | const MvField *tab_mvf = s->cur_frame->tab_mvf; | |
539 | 9609032 | int min_pu_width = sps->min_pu_width; | |
540 | |||
541 | 9609032 | const RefPicList *refPicList = s->cur_frame->refPicList; | |
542 | |||
543 |
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9609032 | if (((TAB_MVF(x, y).pred_flag) & (1 << pred_flag_index)) && |
544 |
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7479796 | refPicList[pred_flag_index].list[TAB_MVF(x, y).ref_idx[pred_flag_index]] == refPicList[ref_idx_curr].list[ref_idx]) { |
545 | 4000314 | *mv = TAB_MVF(x, y).mv[pred_flag_index]; | |
546 | 4000314 | return 1; | |
547 | } | ||
548 | 5608718 | return 0; | |
549 | } | ||
550 | |||
551 | 1349556 | static int mv_mp_mode_mx_lt(const HEVCContext *s, const HEVCSPS *sps, | |
552 | int x, int y, int pred_flag_index, | ||
553 | Mv *mv, int ref_idx_curr, int ref_idx) | ||
554 | { | ||
555 | 1349556 | const MvField *tab_mvf = s->cur_frame->tab_mvf; | |
556 | 1349556 | int min_pu_width = sps->min_pu_width; | |
557 | |||
558 | 1349556 | const RefPicList *refPicList = s->cur_frame->refPicList; | |
559 | |||
560 |
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1349556 | if ((TAB_MVF(x, y).pred_flag) & (1 << pred_flag_index)) { |
561 | 1066808 | int currIsLongTerm = refPicList[ref_idx_curr].isLongTerm[ref_idx]; | |
562 | |||
563 | 1066808 | int colIsLongTerm = | |
564 | 1066808 | refPicList[pred_flag_index].isLongTerm[(TAB_MVF(x, y).ref_idx[pred_flag_index])]; | |
565 | |||
566 |
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1066808 | if (colIsLongTerm == currIsLongTerm) { |
567 | 1052454 | *mv = TAB_MVF(x, y).mv[pred_flag_index]; | |
568 |
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1052454 | if (!currIsLongTerm) |
569 | 1045888 | dist_scale(s, mv, min_pu_width, x, y, | |
570 | pred_flag_index, ref_idx_curr, ref_idx); | ||
571 | 1052454 | return 1; | |
572 | } | ||
573 | } | ||
574 | 297102 | return 0; | |
575 | } | ||
576 | |||
577 | #define MP_MX(v, pred, mx) \ | ||
578 | mv_mp_mode_mx(s, sps, \ | ||
579 | (x ## v) >> sps->log2_min_pu_size, \ | ||
580 | (y ## v) >> sps->log2_min_pu_size, \ | ||
581 | pred, &mx, ref_idx_curr, ref_idx) | ||
582 | |||
583 | #define MP_MX_LT(v, pred, mx) \ | ||
584 | mv_mp_mode_mx_lt(s, sps, \ | ||
585 | (x ## v) >> sps->log2_min_pu_size, \ | ||
586 | (y ## v) >> sps->log2_min_pu_size, \ | ||
587 | pred, &mx, ref_idx_curr, ref_idx) | ||
588 | |||
589 | 2967103 | void ff_hevc_luma_mv_mvp_mode(HEVCLocalContext *lc, const HEVCPPS *pps, | |
590 | int x0, int y0, int nPbW, | ||
591 | int nPbH, int log2_cb_size, int part_idx, | ||
592 | int merge_idx, MvField *mv, | ||
593 | int mvp_lx_flag, int LX) | ||
594 | { | ||
595 | 2967103 | const HEVCSPS *const sps = pps->sps; | |
596 | 2967103 | const HEVCContext *const s = lc->parent; | |
597 | 2967103 | const MvField *const tab_mvf = s->cur_frame->tab_mvf; | |
598 | 2967103 | int isScaledFlag_L0 = 0; | |
599 | 2967103 | int availableFlagLXA0 = 1; | |
600 | 2967103 | int availableFlagLXB0 = 1; | |
601 | 2967103 | int numMVPCandLX = 0; | |
602 | 2967103 | int min_pu_width = sps->min_pu_width; | |
603 | |||
604 | int xA0, yA0; | ||
605 | int is_available_a0; | ||
606 | int xA1, yA1; | ||
607 | int is_available_a1; | ||
608 | int xB0, yB0; | ||
609 | int is_available_b0; | ||
610 | int xB1, yB1; | ||
611 | int is_available_b1; | ||
612 | int xB2, yB2; | ||
613 | int is_available_b2; | ||
614 | |||
615 | 2967103 | Mv mvpcand_list[2] = { { 0 } }; | |
616 | Mv mxA; | ||
617 | Mv mxB; | ||
618 | int ref_idx_curr; | ||
619 | 2967103 | int ref_idx = 0; | |
620 | int pred_flag_index_l0; | ||
621 | int pred_flag_index_l1; | ||
622 | |||
623 | 2967103 | const int cand_bottom_left = lc->na.cand_bottom_left; | |
624 | 2967103 | const int cand_left = lc->na.cand_left; | |
625 | 2967103 | const int cand_up_left = lc->na.cand_up_left; | |
626 | 2967103 | const int cand_up = lc->na.cand_up; | |
627 | 2967103 | const int cand_up_right = lc->na.cand_up_right_sap; | |
628 | 2967103 | ref_idx_curr = LX; | |
629 | 2967103 | ref_idx = mv->ref_idx[LX]; | |
630 | 2967103 | pred_flag_index_l0 = LX; | |
631 | 2967103 | pred_flag_index_l1 = !LX; | |
632 | |||
633 | // left bottom spatial candidate | ||
634 | 2967103 | xA0 = x0 - 1; | |
635 | 2967103 | yA0 = y0 + nPbH; | |
636 | |||
637 |
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2051868 | is_available_a0 = AVAILABLE(cand_bottom_left, A0) && |
638 |
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6656028 | yA0 < sps->height && |
639 | 1637057 | PRED_BLOCK_AVAILABLE(A0); | |
640 | |||
641 | //left spatial merge candidate | ||
642 | 2967103 | xA1 = x0 - 1; | |
643 | 2967103 | yA1 = y0 + nPbH - 1; | |
644 | |||
645 |
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2967103 | is_available_a1 = AVAILABLE(cand_left, A1); |
646 |
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2967103 | if (is_available_a0 || is_available_a1) |
647 | 2643175 | isScaledFlag_L0 = 1; | |
648 | |||
649 |
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2967103 | if (is_available_a0) { |
650 |
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|
768383 | if (MP_MX(A0, pred_flag_index_l0, mxA)) { |
651 | 472171 | goto b_candidates; | |
652 | } | ||
653 |
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|
296212 | if (MP_MX(A0, pred_flag_index_l1, mxA)) { |
654 | 49860 | goto b_candidates; | |
655 | } | ||
656 | } | ||
657 | |||
658 |
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|
2445072 | if (is_available_a1) { |
659 |
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|
2111480 | if (MP_MX(A1, pred_flag_index_l0, mxA)) { |
660 | 1208810 | goto b_candidates; | |
661 | } | ||
662 |
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|
902670 | if (MP_MX(A1, pred_flag_index_l1, mxA)) { |
663 | 120065 | goto b_candidates; | |
664 | } | ||
665 | } | ||
666 | |||
667 |
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|
1116197 | if (is_available_a0) { |
668 |
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|
199957 | if (MP_MX_LT(A0, pred_flag_index_l0, mxA)) { |
669 | 144743 | goto b_candidates; | |
670 | } | ||
671 |
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|
55214 | if (MP_MX_LT(A0, pred_flag_index_l1, mxA)) { |
672 | 53192 | goto b_candidates; | |
673 | } | ||
674 | } | ||
675 | |||
676 |
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|
918262 | if (is_available_a1) { |
677 |
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|
594092 | if (MP_MX_LT(A1, pred_flag_index_l0, mxA)) { |
678 | 396199 | goto b_candidates; | |
679 | } | ||
680 |
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|
197893 | if (MP_MX_LT(A1, pred_flag_index_l1, mxA)) { |
681 | 189658 | goto b_candidates; | |
682 | } | ||
683 | } | ||
684 | 332405 | availableFlagLXA0 = 0; | |
685 | |||
686 | 2967103 | b_candidates: | |
687 | // B candidates | ||
688 | // above right spatial merge candidate | ||
689 | 2967103 | xB0 = x0 + nPbW; | |
690 | 2967103 | yB0 = y0 - 1; | |
691 | |||
692 |
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2284120 | is_available_b0 = AVAILABLE(cand_up_right, B0) && |
693 |
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|
7198746 | xB0 < sps->width && |
694 | 1947523 | PRED_BLOCK_AVAILABLE(B0); | |
695 | |||
696 | // above spatial merge candidate | ||
697 | 2967103 | xB1 = x0 + nPbW - 1; | |
698 | 2967103 | yB1 = y0 - 1; | |
699 |
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2967103 | is_available_b1 = AVAILABLE(cand_up, B1); |
700 | |||
701 | // above left spatial merge candidate | ||
702 | 2967103 | xB2 = x0 - 1; | |
703 | 2967103 | yB2 = y0 - 1; | |
704 |
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|
2967103 | is_available_b2 = AVAILABLE(cand_up_left, B2); |
705 | |||
706 | // above right spatial merge candidate | ||
707 |
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|
2967103 | if (is_available_b0) { |
708 |
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|
1573927 | if (MP_MX(B0, pred_flag_index_l0, mxB)) { |
709 | 990313 | goto scalef; | |
710 | } | ||
711 |
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|
583614 | if (MP_MX(B0, pred_flag_index_l1, mxB)) { |
712 | 99344 | goto scalef; | |
713 | } | ||
714 | } | ||
715 | |||
716 | // above spatial merge candidate | ||
717 |
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|
1877446 | if (is_available_b1) { |
718 |
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|
1486826 | if (MP_MX(B1, pred_flag_index_l0, mxB)) { |
719 | 760467 | goto scalef; | |
720 | } | ||
721 |
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|
726359 | if (MP_MX(B1, pred_flag_index_l1, mxB)) { |
722 | 74922 | goto scalef; | |
723 | } | ||
724 | } | ||
725 | |||
726 | // above left spatial merge candidate | ||
727 |
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|
1042057 | if (is_available_b2) { |
728 |
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|
679367 | if (MP_MX(B2, pred_flag_index_l0, mxB)) { |
729 | 199173 | goto scalef; | |
730 | } | ||
731 |
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|
480194 | if (MP_MX(B2, pred_flag_index_l1, mxB)) { |
732 | 25189 | goto scalef; | |
733 | } | ||
734 | } | ||
735 | 817695 | availableFlagLXB0 = 0; | |
736 | |||
737 | 2967103 | scalef: | |
738 |
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|
2967103 | if (!isScaledFlag_L0) { |
739 |
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|
323928 | if (availableFlagLXB0) { |
740 | 201398 | availableFlagLXA0 = 1; | |
741 | 201398 | mxA = mxB; | |
742 | } | ||
743 | 323928 | availableFlagLXB0 = 0; | |
744 | |||
745 | // XB0 and L1 | ||
746 |
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|
323928 | if (is_available_b0) { |
747 | 149399 | availableFlagLXB0 = MP_MX_LT(B0, pred_flag_index_l0, mxB); | |
748 |
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|
149399 | if (!availableFlagLXB0) |
749 | 17215 | availableFlagLXB0 = MP_MX_LT(B0, pred_flag_index_l1, mxB); | |
750 | } | ||
751 | |||
752 |
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|
323928 | if (is_available_b1 && !availableFlagLXB0) { |
753 | 105109 | availableFlagLXB0 = MP_MX_LT(B1, pred_flag_index_l0, mxB); | |
754 |
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|
105109 | if (!availableFlagLXB0) |
755 | 13259 | availableFlagLXB0 = MP_MX_LT(B1, pred_flag_index_l1, mxB); | |
756 | } | ||
757 | |||
758 |
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|
323928 | if (is_available_b2 && !availableFlagLXB0) { |
759 | 15547 | availableFlagLXB0 = MP_MX_LT(B2, pred_flag_index_l0, mxB); | |
760 |
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|
15547 | if (!availableFlagLXB0) |
761 | 1871 | availableFlagLXB0 = MP_MX_LT(B2, pred_flag_index_l1, mxB); | |
762 | } | ||
763 | } | ||
764 | |||
765 |
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|
2967103 | if (availableFlagLXA0) |
766 | 2836096 | mvpcand_list[numMVPCandLX++] = mxA; | |
767 | |||
768 |
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|
2967103 | if (availableFlagLXB0 && (!availableFlagLXA0 || mxA.x != mxB.x || mxA.y != mxB.y)) |
769 | 1623183 | mvpcand_list[numMVPCandLX++] = mxB; | |
770 | |||
771 | //temporal motion vector prediction candidate | ||
772 |
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|
2967103 | if (numMVPCandLX < 2 && s->sh.slice_temporal_mvp_enabled_flag && |
773 | mvp_lx_flag == numMVPCandLX) { | ||
774 | Mv mv_col; | ||
775 | 410872 | int available_col = temporal_luma_motion_vector(s, sps, x0, y0, nPbW, | |
776 | nPbH, ref_idx, | ||
777 | &mv_col, LX); | ||
778 |
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|
410872 | if (available_col) |
779 | 336983 | mvpcand_list[numMVPCandLX++] = mv_col; | |
780 | } | ||
781 | |||
782 | 2967103 | mv->mv[LX] = mvpcand_list[mvp_lx_flag]; | |
783 | 2967103 | } | |
784 |