FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/hevc/mvs.c
Date: 2025-06-01 09:29:47
Exec Total Coverage
Lines: 405 409 99.0%
Functions: 14 14 100.0%
Branches: 371 384 96.6%

Line Branch Exec Source
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 30364723 void ff_hevc_set_neighbour_available(HEVCLocalContext *lc, int x0, int y0,
44 int nPbW, int nPbH, int log2_ctb_size)
45 {
46 30364723 int x0b = av_zero_extend(x0, log2_ctb_size);
47 30364723 int y0b = av_zero_extend(y0, log2_ctb_size);
48
49
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30364723 lc->na.cand_up = (lc->ctb_up_flag || y0b);
50
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30364723 lc->na.cand_left = (lc->ctb_left_flag || x0b);
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30364723 lc->na.cand_up_left = (x0b || y0b) ? lc->na.cand_left && lc->na.cand_up : lc->ctb_up_left_flag;
52 30364723 lc->na.cand_up_right_sap =
53 30364723 (x0b + nPbW == 1 << log2_ctb_size) ?
54
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30364723 lc->ctb_up_right_flag && !y0b : lc->na.cand_up;
55 30364723 lc->na.cand_up_right =
56 30364723 lc->na.cand_up_right_sap
57
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30364723 && (x0 + nPbW) < lc->end_of_tiles_x;
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30364723 lc->na.cand_bottom_left = ((y0 + nPbH) >= lc->end_of_tiles_y) ? 0 : lc->na.cand_left;
59 30364723 }
60
61 /*
62 * 6.4.1 Derivation process for z-scan order block availability
63 */
64 static av_always_inline int
65 5595495 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 5595495 int xCurr_ctb = xCurr >> sps->log2_ctb_size;
72 5595495 int yCurr_ctb = yCurr >> sps->log2_ctb_size;
73 5595495 int xN_ctb = xN >> sps->log2_ctb_size;
74 5595495 int yN_ctb = yN >> sps->log2_ctb_size;
75
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5595495 if( yN_ctb < yCurr_ctb || xN_ctb < xCurr_ctb )
76 1514962 return 1;
77 else {
78 4080533 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 4080533 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 4080533 return N <= Curr;
83 }
84 }
85
86 //check if the two luma locations belong to the same motion estimation region
87 11749373 static av_always_inline int is_diff_mer(const HEVCPPS *pps, int xN, int yN, int xP, int yP)
88 {
89 11749373 uint8_t plevel = pps->log2_parallel_merge_level;
90
91
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12513500 return xN >> plevel == xP >> plevel &&
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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 4630048 static av_always_inline int compare_mv_ref_idx(struct MvField A, struct MvField B)
100 {
101 4630048 int a_pf = A.pred_flag;
102 4630048 int b_pf = B.pred_flag;
103
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4630048 if (a_pf == b_pf) {
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3441631 if (a_pf == PF_BI) {
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1670040 return MATCH(ref_idx[0]) && MATCH_MV(mv[0]) &&
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3516747 MATCH(ref_idx[1]) && MATCH_MV(mv[1]);
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1594924 } else if (a_pf == PF_L0) {
108
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1401656 return MATCH(ref_idx[0]) && MATCH_MV(mv[0]);
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193268 } else if (a_pf == PF_L1) {
110
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193268 return MATCH(ref_idx[1]) && MATCH_MV(mv[1]);
111 }
112 }
113 1188417 return 0;
114 }
115
116 2385373 static av_always_inline void mv_scale(Mv *dst, const Mv *src, int td, int tb)
117 {
118 int tx, scale_factor;
119
120 2385373 td = av_clip_int8(td);
121 2385373 tb = av_clip_int8(tb);
122 2385373 tx = (0x4000 + abs(td / 2)) / td;
123 2385373 scale_factor = av_clip_intp2((tb * tx + 32) >> 6, 12);
124 2385373 dst->x = av_clip_int16((scale_factor * src->x + 127 +
125 2385373 (scale_factor * src->x < 0)) >> 8);
126 2385373 dst->y = av_clip_int16((scale_factor * src->y + 127 +
127 2385373 (scale_factor * src->y < 0)) >> 8);
128 2385373 }
129
130 1862867 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 1862867 int cur_lt = refPicList[X].isLongTerm[refIdxLx];
136 1862867 int col_lt = refPicList_col[listCol].isLongTerm[refidxCol];
137 int col_poc_diff, cur_poc_diff;
138
139
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1862867 if (cur_lt != col_lt) {
140 11053 mvLXCol->x = 0;
141 11053 mvLXCol->y = 0;
142 11053 return 0;
143 }
144
145 1851814 col_poc_diff = colPic - refPicList_col[listCol].list[refidxCol];
146 1851814 cur_poc_diff = poc - refPicList[X].list[refIdxLx];
147
148
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1851814 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 1510402 mv_scale(mvLXCol, mvCol, col_poc_diff, cur_poc_diff);
153 }
154 1851814 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 2334051 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 2334051 const RefPicList *refPicList = s->cur_frame->refPicList;
169
170
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2334051 if (temp_col.pred_flag == PF_INTRA)
171 471184 return 0;
172
173
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1862867 if (!(temp_col.pred_flag & PF_L0))
174 216695 return CHECK_MVSET(1);
175
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1646172 else if (temp_col.pred_flag == PF_L0)
176 782704 return CHECK_MVSET(0);
177
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863468 else if (temp_col.pred_flag == PF_BI) {
178 863468 int check_diffpicount = 0;
179 int i, j;
180
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2590404 for (j = 0; j < 2; j++) {
181
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4636422 for (i = 0; i < refPicList[j].nb_refs; i++) {
182
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3684126 if (refPicList[j].list[i] > s->poc) {
183 774640 check_diffpicount++;
184 774640 break;
185 }
186 }
187 }
188
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863468 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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619982 if (s->sh.collocated_list == L1)
195 347167 return CHECK_MVSET(0);
196 else
197 272815 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 2087169 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 2087169 int min_pu_width = sps->min_pu_width;
228 2087169 int availableFlagLXCol = 0;
229 int colPic;
230
231 2087169 const HEVCFrame *ref = s->collocated_ref;
232
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2087169 if (!ref) {
234 memset(mvLXCol, 0, sizeof(*mvLXCol));
235 return 0;
236 }
237
238 2087169 tab_mvf = ref->tab_mvf;
239 2087169 colPic = ref->poc;
240
241 //bottom right collocated motion vector
242 2087169 x = x0 + nPbW;
243 2087169 y = y0 + nPbH;
244
245
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2087169 (y0 >> sps->log2_ctb_size) == (y >> sps->log2_ctb_size) &&
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1487998 y < sps->height &&
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1440733 x < sps->width) {
249 1418174 x &= ~15;
250 1418174 y &= ~15;
251
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1418174 if (s->avctx->active_thread_type == FF_THREAD_FRAME)
252 1443 ff_progress_frame_await(&ref->tf, y);
253 1418174 x_pu = x >> sps->log2_min_pu_size;
254 1418174 y_pu = y >> sps->log2_min_pu_size;
255 1418174 temp_col = TAB_MVF(x_pu, y_pu);
256 1418174 availableFlagLXCol = DERIVE_TEMPORAL_COLOCATED_MVS;
257 }
258
259 // derive center collocated motion vector
260
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2087169 if (tab_mvf && !availableFlagLXCol) {
261 915877 x = x0 + (nPbW >> 1);
262 915877 y = y0 + (nPbH >> 1);
263 915877 x &= ~15;
264 915877 y &= ~15;
265
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915877 if (s->avctx->active_thread_type == FF_THREAD_FRAME)
266 1167 ff_progress_frame_await(&ref->tf, y);
267 915877 x_pu = x >> sps->log2_min_pu_size;
268 915877 y_pu = y >> sps->log2_min_pu_size;
269 915877 temp_col = TAB_MVF(x_pu, y_pu);
270 915877 availableFlagLXCol = DERIVE_TEMPORAL_COLOCATED_MVS;
271 }
272 2087169 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 6619316 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 6619316 const RefPicList *refPicList = s->cur_frame->refPicList;
297 6619316 const MvField *tab_mvf = s->cur_frame->tab_mvf;
298
299 6619316 const int min_pu_width = sps->min_pu_width;
300
301 6619316 const int cand_bottom_left = lc->na.cand_bottom_left;
302 6619316 const int cand_left = lc->na.cand_left;
303 6619316 const int cand_up_left = lc->na.cand_up_left;
304 6619316 const int cand_up = lc->na.cand_up;
305 6619316 const int cand_up_right = lc->na.cand_up_right_sap;
306
307 6619316 const int xA1 = x0 - 1;
308 6619316 const int yA1 = y0 + nPbH - 1;
309
310 6619316 const int xB1 = x0 + nPbW - 1;
311 6619316 const int yB1 = y0 - 1;
312
313 6619316 const int xB0 = x0 + nPbW;
314 6619316 const int yB0 = y0 - 1;
315
316 6619316 const int xA0 = x0 - 1;
317 6619316 const int yA0 = y0 + nPbH;
318
319 6619316 const int xB2 = x0 - 1;
320 6619316 const int yB2 = y0 - 1;
321
322 13238632 const int nb_refs = (s->sh.slice_type == HEVC_SLICE_P) ?
323
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6619316 s->sh.nb_refs[0] : FFMIN(s->sh.nb_refs[0], s->sh.nb_refs[1]);
324
325 6619316 int zero_idx = 0;
326
327 6619316 int nb_merge_cand = 0;
328 6619316 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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6619316 if (!singleMCLFlag && part_idx == 1 &&
338
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700365 (lc->cu.part_mode == PART_Nx2N ||
339
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421856 lc->cu.part_mode == PART_nLx2N ||
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6609527 lc->cu.part_mode == PART_nRx2N) ||
341 6237716 is_diff_mer(pps, xA1, yA1, x0, y0)) {
342 519988 is_available_a1 = 0;
343 } else {
344
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6099328 is_available_a1 = AVAILABLE(cand_left, A1);
345
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6099328 if (is_available_a1) {
346 5694900 mergecandlist[nb_merge_cand] = TAB_MVF_PU(A1);
347
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5694900 if (merge_idx == 0)
348 3415709 return;
349 2279191 nb_merge_cand++;
350 }
351 }
352
353
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3203607 if (!singleMCLFlag && part_idx == 1 &&
354
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547399 (lc->cu.part_mode == PART_2NxN ||
355
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452150 lc->cu.part_mode == PART_2NxnU ||
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3510164 lc->cu.part_mode == PART_2NxnD) ||
357 3074332 is_diff_mer(pps, xB1, yB1, x0, y0)) {
358 257136 is_available_b1 = 0;
359 } else {
360
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2946471 is_available_b1 = AVAILABLE(cand_up, B1);
361
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2946471 if (is_available_b1 &&
362
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2019610 !(is_available_a1 && COMPARE_MV_REFIDX(B1, A1))) {
363 2363994 mergecandlist[nb_merge_cand] = TAB_MVF_PU(B1);
364
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2363994 if (merge_idx == nb_merge_cand)
365 1464932 return;
366 899062 nb_merge_cand++;
367 }
368 }
369
370 // above right spatial merge candidate
371
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1383619 is_available_b0 = AVAILABLE(cand_up_right, B0) &&
372
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2428617 xB0 < sps->width &&
373
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4332127 PRED_BLOCK_AVAILABLE(B0) &&
374 1010149 !is_diff_mer(pps, xB0, yB0, x0, y0);
375
376
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1738675 if (is_available_b0 &&
377
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899184 !(is_available_b1 && COMPARE_MV_REFIDX(B0, B1))) {
378 570049 mergecandlist[nb_merge_cand] = TAB_MVF_PU(B0);
379
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570049 if (merge_idx == nb_merge_cand)
380 326459 return;
381 243590 nb_merge_cand++;
382 }
383
384 // left bottom spatial merge candidate
385
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999321 is_available_a0 = AVAILABLE(cand_bottom_left, A0) &&
386
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1607114 yA0 < sps->height &&
387
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3215094 PRED_BLOCK_AVAILABLE(A0) &&
388 355402 !is_diff_mer(pps, xA0, yA0, x0, y0);
389
390
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1412216 if (is_available_a0 &&
391
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322744 !(is_available_a1 && COMPARE_MV_REFIDX(A0, A1))) {
392 151260 mergecandlist[nb_merge_cand] = TAB_MVF_PU(A0);
393
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151260 if (merge_idx == nb_merge_cand)
394 83889 return;
395 67371 nb_merge_cand++;
396 }
397
398 // above left spatial merge candidate
399
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2400101 is_available_b2 = AVAILABLE(cand_up_left, B2) &&
400 1071774 !is_diff_mer(pps, xB2, yB2, x0, y0);
401
402
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1328327 if (is_available_b2 &&
403
4/4
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989588 !(is_available_a1 && COMPARE_MV_REFIDX(B2, A1)) &&
404
4/4
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631351 !(is_available_b1 && COMPARE_MV_REFIDX(B2, B1)) &&
405 nb_merge_cand != 4) {
406 408423 mergecandlist[nb_merge_cand] = TAB_MVF_PU(B2);
407
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408423 if (merge_idx == nb_merge_cand)
408 201944 return;
409 206479 nb_merge_cand++;
410 }
411
412 // temporal motion vector candidate
413
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1126383 if (s->sh.slice_temporal_mvp_enabled_flag &&
414
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884643 nb_merge_cand < s->sh.max_num_merge_cand) {
415 884643 Mv mv_l0_col = { 0 }, mv_l1_col = { 0 };
416 884643 int available_l0 = temporal_luma_motion_vector(s, sps, x0, y0, nPbW, nPbH,
417 0, &mv_l0_col, 0);
418 1769286 int available_l1 = (s->sh.slice_type == HEVC_SLICE_B) ?
419 792099 temporal_luma_motion_vector(s, sps, x0, y0, nPbW, nPbH,
420
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884643 0, &mv_l1_col, 1) : 0;
421
422
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884643 if (available_l0 || available_l1) {
423 801199 mergecandlist[nb_merge_cand].pred_flag = available_l0 + (available_l1 << 1);
424 801199 AV_ZERO16(mergecandlist[nb_merge_cand].ref_idx);
425 801199 mergecandlist[nb_merge_cand].mv[0] = mv_l0_col;
426 801199 mergecandlist[nb_merge_cand].mv[1] = mv_l1_col;
427
428
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801199 if (merge_idx == nb_merge_cand)
429 500733 return;
430 300466 nb_merge_cand++;
431 }
432 }
433
434 625650 nb_orig_merge_cand = nb_merge_cand;
435
436 // combined bi-predictive merge candidates (applies for B slices)
437
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625650 if (s->sh.slice_type == HEVC_SLICE_B && nb_orig_merge_cand > 1 &&
438
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347399 nb_orig_merge_cand < s->sh.max_num_merge_cand) {
439 347399 int comb_idx = 0;
440
441
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736478 for (comb_idx = 0; nb_merge_cand < s->sh.max_num_merge_cand &&
442
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1125557 comb_idx < nb_orig_merge_cand * (nb_orig_merge_cand - 1); comb_idx++) {
443 685224 int l0_cand_idx = l0_l1_cand_idx[comb_idx][0];
444 685224 int l1_cand_idx = l0_l1_cand_idx[comb_idx][1];
445 685224 MvField l0_cand = mergecandlist[l0_cand_idx];
446 685224 MvField l1_cand = mergecandlist[l1_cand_idx];
447
448
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685224 if ((l0_cand.pred_flag & PF_L0) && (l1_cand.pred_flag & PF_L1) &&
449 452684 (refPicList[0].list[l0_cand.ref_idx[0]] !=
450
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452684 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 438197 mergecandlist[nb_merge_cand].ref_idx[0] = l0_cand.ref_idx[0];
453 438197 mergecandlist[nb_merge_cand].ref_idx[1] = l1_cand.ref_idx[1];
454 438197 mergecandlist[nb_merge_cand].pred_flag = PF_BI;
455 438197 AV_COPY32(&mergecandlist[nb_merge_cand].mv[0], &l0_cand.mv[0]);
456 438197 AV_COPY32(&mergecandlist[nb_merge_cand].mv[1], &l1_cand.mv[1]);
457
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438197 if (merge_idx == nb_merge_cand)
458 296145 return;
459 142052 nb_merge_cand++;
460 }
461 }
462 }
463
464 // append Zero motion vector candidates
465
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542846 while (nb_merge_cand < s->sh.max_num_merge_cand) {
466
2/2
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542846 mergecandlist[nb_merge_cand].pred_flag = PF_L0 + ((s->sh.slice_type == HEVC_SLICE_B) << 1);
467 542846 AV_ZERO32(mergecandlist[nb_merge_cand].mv + 0);
468 542846 AV_ZERO32(mergecandlist[nb_merge_cand].mv + 1);
469
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542846 mergecandlist[nb_merge_cand].ref_idx[0] = zero_idx < nb_refs ? zero_idx : 0;
470
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542846 mergecandlist[nb_merge_cand].ref_idx[1] = zero_idx < nb_refs ? zero_idx : 0;
471
472
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542846 if (merge_idx == nb_merge_cand)
473 329505 return;
474 213341 nb_merge_cand++;
475 213341 zero_idx++;
476 }
477 }
478
479 /*
480 * 8.5.3.1.1 Derivation process of luma Mvs for merge mode
481 */
482 6619316 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 6619316 const HEVCSPS *const sps = pps->sps;
488 6619316 const HEVCContext *const s = lc->parent;
489 6619316 int singleMCLFlag = 0;
490 6619316 int nCS = 1 << log2_cb_size;
491 MvField mergecand_list[MRG_MAX_NUM_CANDS];
492 6619316 int nPbW2 = nPbW;
493 6619316 int nPbH2 = nPbH;
494
495
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6619316 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 6619316 ff_hevc_set_neighbour_available(lc, x0, y0, nPbW, nPbH, sps->log2_ctb_size);
505 6619316 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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6619316 if (mergecand_list[merge_idx].pred_flag == PF_BI &&
510
2/2
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3681999 (nPbW2 + nPbH2) == 12) {
511 128138 mergecand_list[merge_idx].pred_flag = PF_L0;
512 }
513
514 6619316 *mv = mergecand_list[merge_idx];
515 6619316 }
516
517 1045168 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 1045168 const RefPicList *refPicList = s->cur_frame->refPicList;
522 1045168 const MvField *tab_mvf = s->cur_frame->tab_mvf;
523 1045168 int ref_pic_elist = refPicList[elist].list[TAB_MVF(x, y).ref_idx[elist]];
524 1045168 int ref_pic_curr = refPicList[ref_idx_curr].list[ref_idx];
525
526
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1045168 if (ref_pic_elist != ref_pic_curr) {
527 874971 int poc_diff = s->poc - ref_pic_elist;
528
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874971 if (!poc_diff)
529 poc_diff = 1;
530 874971 mv_scale(mv, mv, poc_diff, s->poc - ref_pic_curr);
531 }
532 1045168 }
533
534 9600183 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 9600183 const MvField *tab_mvf = s->cur_frame->tab_mvf;
539 9600183 int min_pu_width = sps->min_pu_width;
540
541 9600183 const RefPicList *refPicList = s->cur_frame->refPicList;
542
543
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9600183 if (((TAB_MVF(x, y).pred_flag) & (1 << pred_flag_index)) &&
544
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7472749 refPicList[pred_flag_index].list[TAB_MVF(x, y).ref_idx[pred_flag_index]] == refPicList[ref_idx_curr].list[ref_idx]) {
545 3996171 *mv = TAB_MVF(x, y).mv[pred_flag_index];
546 3996171 return 1;
547 }
548 5604012 return 0;
549 }
550
551 1348379 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 1348379 const MvField *tab_mvf = s->cur_frame->tab_mvf;
556 1348379 int min_pu_width = sps->min_pu_width;
557
558 1348379 const RefPicList *refPicList = s->cur_frame->refPicList;
559
560
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1348379 if ((TAB_MVF(x, y).pred_flag) & (1 << pred_flag_index)) {
561 1066088 int currIsLongTerm = refPicList[ref_idx_curr].isLongTerm[ref_idx];
562
563 1066088 int colIsLongTerm =
564 1066088 refPicList[pred_flag_index].isLongTerm[(TAB_MVF(x, y).ref_idx[pred_flag_index])];
565
566
2/2
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1066088 if (colIsLongTerm == currIsLongTerm) {
567 1051734 *mv = TAB_MVF(x, y).mv[pred_flag_index];
568
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1051734 if (!currIsLongTerm)
569 1045168 dist_scale(s, mv, min_pu_width, x, y,
570 pred_flag_index, ref_idx_curr, ref_idx);
571 1051734 return 1;
572 }
573 }
574 296645 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 2964458 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 2964458 const HEVCSPS *const sps = pps->sps;
596 2964458 const HEVCContext *const s = lc->parent;
597 2964458 const MvField *const tab_mvf = s->cur_frame->tab_mvf;
598 2964458 int isScaledFlag_L0 = 0;
599 2964458 int availableFlagLXA0 = 1;
600 2964458 int availableFlagLXB0 = 1;
601 2964458 int numMVPCandLX = 0;
602 2964458 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 2964458 Mv mvpcand_list[2] = { { 0 } };
616 Mv mxA;
617 Mv mxB;
618 int ref_idx_curr;
619 2964458 int ref_idx = 0;
620 int pred_flag_index_l0;
621 int pred_flag_index_l1;
622
623 2964458 const int cand_bottom_left = lc->na.cand_bottom_left;
624 2964458 const int cand_left = lc->na.cand_left;
625 2964458 const int cand_up_left = lc->na.cand_up_left;
626 2964458 const int cand_up = lc->na.cand_up;
627 2964458 const int cand_up_right = lc->na.cand_up_right_sap;
628 2964458 ref_idx_curr = LX;
629 2964458 ref_idx = mv->ref_idx[LX];
630 2964458 pred_flag_index_l0 = LX;
631 2964458 pred_flag_index_l1 = !LX;
632
633 // left bottom spatial candidate
634 2964458 xA0 = x0 - 1;
635 2964458 yA0 = y0 + nPbH;
636
637
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2049891 is_available_a0 = AVAILABLE(cand_bottom_left, A0) &&
638
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6650496 yA0 < sps->height &&
639 1636147 PRED_BLOCK_AVAILABLE(A0);
640
641 //left spatial merge candidate
642 2964458 xA1 = x0 - 1;
643 2964458 yA1 = y0 + nPbH - 1;
644
645
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2964458 is_available_a1 = AVAILABLE(cand_left, A1);
646
4/4
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2964458 if (is_available_a0 || is_available_a1)
647 2640591 isScaledFlag_L0 = 1;
648
649
2/2
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2964458 if (is_available_a0) {
650
2/2
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767473 if (MP_MX(A0, pred_flag_index_l0, mxA)) {
651 471509 goto b_candidates;
652 }
653
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295964 if (MP_MX(A0, pred_flag_index_l1, mxA)) {
654 49860 goto b_candidates;
655 }
656 }
657
658
2/2
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2443089 if (is_available_a1) {
659
2/2
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2109560 if (MP_MX(A1, pred_flag_index_l0, mxA)) {
660 1207547 goto b_candidates;
661 }
662
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902013 if (MP_MX(A1, pred_flag_index_l1, mxA)) {
663 120065 goto b_candidates;
664 }
665 }
666
667
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1115477 if (is_available_a0) {
668
2/2
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199781 if (MP_MX_LT(A0, pred_flag_index_l0, mxA)) {
669 144673 goto b_candidates;
670 }
671
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55108 if (MP_MX_LT(A0, pred_flag_index_l1, mxA)) {
672 53086 goto b_candidates;
673 }
674 }
675
676
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917718 if (is_available_a1) {
677
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593609 if (MP_MX_LT(A1, pred_flag_index_l0, mxA)) {
678 396050 goto b_candidates;
679 }
680
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197559 if (MP_MX_LT(A1, pred_flag_index_l1, mxA)) {
681 189324 goto b_candidates;
682 }
683 }
684 332344 availableFlagLXA0 = 0;
685
686 2964458 b_candidates:
687 // B candidates
688 // above right spatial merge candidate
689 2964458 xB0 = x0 + nPbW;
690 2964458 yB0 = y0 - 1;
691
692
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2281967 is_available_b0 = AVAILABLE(cand_up_right, B0) &&
693
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7192383 xB0 < sps->width &&
694 1945958 PRED_BLOCK_AVAILABLE(B0);
695
696 // above spatial merge candidate
697 2964458 xB1 = x0 + nPbW - 1;
698 2964458 yB1 = y0 - 1;
699
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2964458 is_available_b1 = AVAILABLE(cand_up, B1);
700
701 // above left spatial merge candidate
702 2964458 xB2 = x0 - 1;
703 2964458 yB2 = y0 - 1;
704
4/4
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2964458 is_available_b2 = AVAILABLE(cand_up_left, B2);
705
706 // above right spatial merge candidate
707
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2964458 if (is_available_b0) {
708
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1572362 if (MP_MX(B0, pred_flag_index_l0, mxB)) {
709 989173 goto scalef;
710 }
711
2/2
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583189 if (MP_MX(B0, pred_flag_index_l1, mxB)) {
712 99344 goto scalef;
713 }
714 }
715
716 // above spatial merge candidate
717
2/2
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1875941 if (is_available_b1) {
718
2/2
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1485359 if (MP_MX(B1, pred_flag_index_l0, mxB)) {
719 759633 goto scalef;
720 }
721
2/2
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✓ Branch 2 taken 650804 times.
725726 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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1041386 if (is_available_b2) {
728
2/2
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678733 if (MP_MX(B2, pred_flag_index_l0, mxB)) {
729 198929 goto scalef;
730 }
731
2/2
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479804 if (MP_MX(B2, pred_flag_index_l1, mxB)) {
732 25189 goto scalef;
733 }
734 }
735 817268 availableFlagLXB0 = 0;
736
737 2964458 scalef:
738
2/2
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2964458 if (!isScaledFlag_L0) {
739
2/2
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323867 if (availableFlagLXB0) {
740 201358 availableFlagLXA0 = 1;
741 201358 mxA = mxB;
742 }
743 323867 availableFlagLXB0 = 0;
744
745 // XB0 and L1
746
2/2
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323867 if (is_available_b0) {
747 149362 availableFlagLXB0 = MP_MX_LT(B0, pred_flag_index_l0, mxB);
748
2/2
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149362 if (!availableFlagLXB0)
749 17207 availableFlagLXB0 = MP_MX_LT(B0, pred_flag_index_l1, mxB);
750 }
751
752
4/4
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323867 if (is_available_b1 && !availableFlagLXB0) {
753 105087 availableFlagLXB0 = MP_MX_LT(B1, pred_flag_index_l0, mxB);
754
2/2
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105087 if (!availableFlagLXB0)
755 13250 availableFlagLXB0 = MP_MX_LT(B1, pred_flag_index_l1, mxB);
756 }
757
758
4/4
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323867 if (is_available_b2 && !availableFlagLXB0) {
759 15545 availableFlagLXB0 = MP_MX_LT(B2, pred_flag_index_l0, mxB);
760
2/2
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15545 if (!availableFlagLXB0)
761 1871 availableFlagLXB0 = MP_MX_LT(B2, pred_flag_index_l1, mxB);
762 }
763 }
764
765
2/2
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2964458 if (availableFlagLXA0)
766 2833472 mvpcand_list[numMVPCandLX++] = mxA;
767
768
8/8
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✓ Branch 7 taken 592986 times.
2964458 if (availableFlagLXB0 && (!availableFlagLXA0 || mxA.x != mxB.x || mxA.y != mxB.y))
769 1621447 mvpcand_list[numMVPCandLX++] = mxB;
770
771 //temporal motion vector prediction candidate
772
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2964458 if (numMVPCandLX < 2 && s->sh.slice_temporal_mvp_enabled_flag &&
773 mvp_lx_flag == numMVPCandLX) {
774 Mv mv_col;
775 410427 int available_col = temporal_luma_motion_vector(s, sps, x0, y0, nPbW,
776 nPbH, ref_idx,
777 &mv_col, LX);
778
2/2
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410427 if (available_col)
779 336565 mvpcand_list[numMVPCandLX++] = mv_col;
780 }
781
782 2964458 mv->mv[LX] = mvpcand_list[mvp_lx_flag];
783 2964458 }
784