GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/hevc_mvs.c Lines: 405 409 99.0 %
Date: 2019-11-18 18:00:01 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
27
static const uint8_t l0_l1_cand_idx[12][2] = {
28
    { 0, 1, },
29
    { 1, 0, },
30
    { 0, 2, },
31
    { 2, 0, },
32
    { 1, 2, },
33
    { 2, 1, },
34
    { 0, 3, },
35
    { 3, 0, },
36
    { 1, 3, },
37
    { 3, 1, },
38
    { 2, 3, },
39
    { 3, 2, },
40
};
41
42
27365198
void ff_hevc_set_neighbour_available(HEVCContext *s, int x0, int y0,
43
                                     int nPbW, int nPbH)
44
{
45
27365198
    HEVCLocalContext *lc = s->HEVClc;
46
27365198
    int x0b = av_mod_uintp2(x0, s->ps.sps->log2_ctb_size);
47
27365198
    int y0b = av_mod_uintp2(y0, s->ps.sps->log2_ctb_size);
48
49

27365198
    lc->na.cand_up       = (lc->ctb_up_flag   || y0b);
50

27365198
    lc->na.cand_left     = (lc->ctb_left_flag || x0b);
51


27365198
    lc->na.cand_up_left  = (!x0b && !y0b) ? lc->ctb_up_left_flag : lc->na.cand_left && lc->na.cand_up;
52
27365198
    lc->na.cand_up_right_sap =
53
27365198
            ((x0b + nPbW) == (1 << s->ps.sps->log2_ctb_size)) ?
54

27365198
                    lc->ctb_up_right_flag && !y0b : lc->na.cand_up;
55
27365198
    lc->na.cand_up_right =
56
27365198
            lc->na.cand_up_right_sap
57

27365198
                     && (x0 + nPbW) < lc->end_of_tiles_x;
58
27365198
    lc->na.cand_bottom_left = ((y0 + nPbH) >= lc->end_of_tiles_y) ? 0 : lc->na.cand_left;
59
27365198
}
60
61
/*
62
 * 6.4.1 Derivation process for z-scan order block availability
63
 */
64
5566731
static av_always_inline int z_scan_block_avail(HEVCContext *s, int xCurr, int yCurr,
65
                              int xN, int yN)
66
{
67
#define MIN_TB_ADDR_ZS(x, y)                                            \
68
    s->ps.pps->min_tb_addr_zs[(y) * (s->ps.sps->tb_mask+2) + (x)]
69
70
5566731
    int xCurr_ctb = xCurr >> s->ps.sps->log2_ctb_size;
71
5566731
    int yCurr_ctb = yCurr >> s->ps.sps->log2_ctb_size;
72
5566731
    int xN_ctb    = xN    >> s->ps.sps->log2_ctb_size;
73
5566731
    int yN_ctb    = yN    >> s->ps.sps->log2_ctb_size;
74

5566731
    if( yN_ctb < yCurr_ctb || xN_ctb < xCurr_ctb )
75
1396939
        return 1;
76
    else {
77
4169792
        int Curr = MIN_TB_ADDR_ZS((xCurr >> s->ps.sps->log2_min_tb_size) & s->ps.sps->tb_mask,
78
                (yCurr >> s->ps.sps->log2_min_tb_size) & s->ps.sps->tb_mask);
79
4169792
        int N    = MIN_TB_ADDR_ZS((xN >> s->ps.sps->log2_min_tb_size) & s->ps.sps->tb_mask,
80
                (yN >> s->ps.sps->log2_min_tb_size) & s->ps.sps->tb_mask);
81
4169792
        return N <= Curr;
82
    }
83
}
84
85
//check if the two luma locations belong to the same motion estimation region
86
11088390
static av_always_inline int is_diff_mer(HEVCContext *s, int xN, int yN, int xP, int yP)
87
{
88
11088390
    uint8_t plevel = s->ps.pps->log2_parallel_merge_level;
89
90
11843464
    return xN >> plevel == xP >> plevel &&
91
755074
           yN >> plevel == yP >> plevel;
92
}
93
94
#define MATCH_MV(x) (AV_RN32A(&A.x) == AV_RN32A(&B.x))
95
#define MATCH(x) (A.x == B.x)
96
97
// check if the mv's and refidx are the same between A and B
98
4410326
static av_always_inline int compare_mv_ref_idx(struct MvField A, struct MvField B)
99
{
100
4410326
    int a_pf = A.pred_flag;
101
4410326
    int b_pf = B.pred_flag;
102
4410326
    if (a_pf == b_pf) {
103
3281978
        if (a_pf == PF_BI) {
104
1603087
            return MATCH(ref_idx[0]) && MATCH_MV(mv[0]) &&
105

3375779
                   MATCH(ref_idx[1]) && MATCH_MV(mv[1]);
106
1509286
        } else if (a_pf == PF_L0) {
107

1327506
            return MATCH(ref_idx[0]) && MATCH_MV(mv[0]);
108
181780
        } else if (a_pf == PF_L1) {
109

181780
            return MATCH(ref_idx[1]) && MATCH_MV(mv[1]);
110
        }
111
    }
112
1128348
    return 0;
113
}
114
115
2293792
static av_always_inline void mv_scale(Mv *dst, Mv *src, int td, int tb)
116
{
117
    int tx, scale_factor;
118
119
2293792
    td = av_clip_int8(td);
120
2293792
    tb = av_clip_int8(tb);
121
2293792
    tx = (0x4000 + abs(td / 2)) / td;
122
2293792
    scale_factor = av_clip_intp2((tb * tx + 32) >> 6, 12);
123
2293792
    dst->x = av_clip_int16((scale_factor * src->x + 127 +
124
2293792
                           (scale_factor * src->x < 0)) >> 8);
125
2293792
    dst->y = av_clip_int16((scale_factor * src->y + 127 +
126
2293792
                           (scale_factor * src->y < 0)) >> 8);
127
2293792
}
128
129
1785722
static int check_mvset(Mv *mvLXCol, Mv *mvCol,
130
                       int colPic, int poc,
131
                       RefPicList *refPicList, int X, int refIdxLx,
132
                       RefPicList *refPicList_col, int listCol, int refidxCol)
133
{
134
1785722
    int cur_lt = refPicList[X].isLongTerm[refIdxLx];
135
1785722
    int col_lt = refPicList_col[listCol].isLongTerm[refidxCol];
136
    int col_poc_diff, cur_poc_diff;
137
138
1785722
    if (cur_lt != col_lt) {
139
1407
        mvLXCol->x = 0;
140
1407
        mvLXCol->y = 0;
141
1407
        return 0;
142
    }
143
144
1784315
    col_poc_diff = colPic - refPicList_col[listCol].list[refidxCol];
145
1784315
    cur_poc_diff = poc    - refPicList[X].list[refIdxLx];
146
147

1784315
    if (cur_lt || col_poc_diff == cur_poc_diff || !col_poc_diff) {
148
332991
        mvLXCol->x = mvCol->x;
149
332991
        mvLXCol->y = mvCol->y;
150
    } else {
151
1451324
        mv_scale(mvLXCol, mvCol, col_poc_diff, cur_poc_diff);
152
    }
153
1784315
    return 1;
154
}
155
156
#define CHECK_MVSET(l)                                          \
157
    check_mvset(mvLXCol, temp_col.mv + l,                       \
158
                colPic, s->poc,                                 \
159
                refPicList, X, refIdxLx,                        \
160
                refPicList_col, L ## l, temp_col.ref_idx[l])
161
162
// derive the motion vectors section 8.5.3.1.8
163
2230189
static int derive_temporal_colocated_mvs(HEVCContext *s, MvField temp_col,
164
                                         int refIdxLx, Mv *mvLXCol, int X,
165
                                         int colPic, RefPicList *refPicList_col)
166
{
167
2230189
    RefPicList *refPicList = s->ref->refPicList;
168
169
2230189
    if (temp_col.pred_flag == PF_INTRA)
170
444467
        return 0;
171
172
1785722
    if (!(temp_col.pred_flag & PF_L0))
173
210972
        return CHECK_MVSET(1);
174
1574750
    else if (temp_col.pred_flag == PF_L0)
175
748444
        return CHECK_MVSET(0);
176
826306
    else if (temp_col.pred_flag == PF_BI) {
177
826306
        int check_diffpicount = 0;
178
        int i, j;
179
2478918
        for (j = 0; j < 2; j++) {
180
4461648
            for (i = 0; i < refPicList[j].nb_refs; i++) {
181
3539903
                if (refPicList[j].list[i] > s->poc) {
182
730867
                    check_diffpicount++;
183
730867
                    break;
184
                }
185
            }
186
        }
187
826306
        if (!check_diffpicount) {
188
237536
            if (X==0)
189
133677
                return CHECK_MVSET(0);
190
            else
191
103859
                return CHECK_MVSET(1);
192
        } else {
193
588770
            if (s->sh.collocated_list == L1)
194
327361
                return CHECK_MVSET(0);
195
            else
196
261409
                return CHECK_MVSET(1);
197
        }
198
    }
199
200
    return 0;
201
}
202
203
#define TAB_MVF(x, y)                                                   \
204
    tab_mvf[(y) * min_pu_width + x]
205
206
#define TAB_MVF_PU(v)                                                   \
207
    TAB_MVF(((x ## v) >> s->ps.sps->log2_min_pu_size),                     \
208
            ((y ## v) >> s->ps.sps->log2_min_pu_size))
209
210
#define DERIVE_TEMPORAL_COLOCATED_MVS                                   \
211
    derive_temporal_colocated_mvs(s, temp_col,                          \
212
                                  refIdxLx, mvLXCol, X, colPic,         \
213
                                  ff_hevc_get_ref_list(s, ref, x, y))
214
215
/*
216
 * 8.5.3.1.7  temporal luma motion vector prediction
217
 */
218
1999934
static int temporal_luma_motion_vector(HEVCContext *s, int x0, int y0,
219
                                       int nPbW, int nPbH, int refIdxLx,
220
                                       Mv *mvLXCol, int X)
221
{
222
    MvField *tab_mvf;
223
    MvField temp_col;
224
    int x, y, x_pu, y_pu;
225
1999934
    int min_pu_width = s->ps.sps->min_pu_width;
226
1999934
    int availableFlagLXCol = 0;
227
    int colPic;
228
229
1999934
    HEVCFrame *ref = s->ref->collocated_ref;
230
231
1999934
    if (!ref) {
232
        memset(mvLXCol, 0, sizeof(*mvLXCol));
233
        return 0;
234
    }
235
236
1999934
    tab_mvf = ref->tab_mvf;
237
1999934
    colPic  = ref->poc;
238
239
    //bottom right collocated motion vector
240
1999934
    x = x0 + nPbW;
241
1999934
    y = y0 + nPbH;
242
243
1999934
    if (tab_mvf &&
244
1999934
        (y0 >> s->ps.sps->log2_ctb_size) == (y >> s->ps.sps->log2_ctb_size) &&
245
1434079
        y < s->ps.sps->height &&
246
1387417
        x < s->ps.sps->width) {
247
1365465
        x                 &= ~15;
248
1365465
        y                 &= ~15;
249
1365465
        if (s->threads_type == FF_THREAD_FRAME)
250
1414
            ff_thread_await_progress(&ref->tf, y, 0);
251
1365465
        x_pu               = x >> s->ps.sps->log2_min_pu_size;
252
1365465
        y_pu               = y >> s->ps.sps->log2_min_pu_size;
253
1365465
        temp_col           = TAB_MVF(x_pu, y_pu);
254
1365465
        availableFlagLXCol = DERIVE_TEMPORAL_COLOCATED_MVS;
255
    }
256
257
    // derive center collocated motion vector
258

1999934
    if (tab_mvf && !availableFlagLXCol) {
259
864724
        x                  = x0 + (nPbW >> 1);
260
864724
        y                  = y0 + (nPbH >> 1);
261
864724
        x                 &= ~15;
262
864724
        y                 &= ~15;
263
864724
        if (s->threads_type == FF_THREAD_FRAME)
264
1130
            ff_thread_await_progress(&ref->tf, y, 0);
265
864724
        x_pu               = x >> s->ps.sps->log2_min_pu_size;
266
864724
        y_pu               = y >> s->ps.sps->log2_min_pu_size;
267
864724
        temp_col           = TAB_MVF(x_pu, y_pu);
268
864724
        availableFlagLXCol = DERIVE_TEMPORAL_COLOCATED_MVS;
269
    }
270
1999934
    return availableFlagLXCol;
271
}
272
273
#define AVAILABLE(cand, v)                                      \
274
    (cand && !(TAB_MVF_PU(v).pred_flag == PF_INTRA))
275
276
#define PRED_BLOCK_AVAILABLE(v)                                 \
277
    z_scan_block_avail(s, x0, y0, x ## v, y ## v)
278
279
#define COMPARE_MV_REFIDX(a, b)                                 \
280
    compare_mv_ref_idx(TAB_MVF_PU(a), TAB_MVF_PU(b))
281
282
/*
283
 * 8.5.3.1.2  Derivation process for spatial merging candidates
284
 */
285
6201567
static void derive_spatial_merge_candidates(HEVCContext *s, int x0, int y0,
286
                                            int nPbW, int nPbH,
287
                                            int log2_cb_size,
288
                                            int singleMCLFlag, int part_idx,
289
                                            int merge_idx,
290
                                            struct MvField mergecandlist[])
291
{
292
6201567
    HEVCLocalContext *lc   = s->HEVClc;
293
6201567
    RefPicList *refPicList = s->ref->refPicList;
294
6201567
    MvField *tab_mvf       = s->ref->tab_mvf;
295
296
6201567
    const int min_pu_width = s->ps.sps->min_pu_width;
297
298
6201567
    const int cand_bottom_left = lc->na.cand_bottom_left;
299
6201567
    const int cand_left        = lc->na.cand_left;
300
6201567
    const int cand_up_left     = lc->na.cand_up_left;
301
6201567
    const int cand_up          = lc->na.cand_up;
302
6201567
    const int cand_up_right    = lc->na.cand_up_right_sap;
303
304
6201567
    const int xA1    = x0 - 1;
305
6201567
    const int yA1    = y0 + nPbH - 1;
306
307
6201567
    const int xB1    = x0 + nPbW - 1;
308
6201567
    const int yB1    = y0 - 1;
309
310
6201567
    const int xB0    = x0 + nPbW;
311
6201567
    const int yB0    = y0 - 1;
312
313
6201567
    const int xA0    = x0 - 1;
314
6201567
    const int yA0    = y0 + nPbH;
315
316
6201567
    const int xB2    = x0 - 1;
317
6201567
    const int yB2    = y0 - 1;
318
319
12403134
    const int nb_refs = (s->sh.slice_type == HEVC_SLICE_P) ?
320
6201567
                        s->sh.nb_refs[0] : FFMIN(s->sh.nb_refs[0], s->sh.nb_refs[1]);
321
322
6201567
    int zero_idx = 0;
323
324
6201567
    int nb_merge_cand = 0;
325
6201567
    int nb_orig_merge_cand = 0;
326
327
    int is_available_a0;
328
    int is_available_a1;
329
    int is_available_b0;
330
    int is_available_b1;
331
    int is_available_b2;
332
333
334

6201567
    if (!singleMCLFlag && part_idx == 1 &&
335
668247
        (lc->cu.part_mode == PART_Nx2N ||
336
404401
         lc->cu.part_mode == PART_nLx2N ||
337

6200369
         lc->cu.part_mode == PART_nRx2N) ||
338
5842129
        is_diff_mer(s, xA1, yA1, x0, y0)) {
339
497826
        is_available_a1 = 0;
340
    } else {
341

5703741
        is_available_a1 = AVAILABLE(cand_left, A1);
342
5703741
        if (is_available_a1) {
343
5331076
            mergecandlist[nb_merge_cand] = TAB_MVF_PU(A1);
344
5331076
            if (merge_idx == 0)
345
3166828
                return;
346
2164248
            nb_merge_cand++;
347
        }
348
    }
349
350

3034739
    if (!singleMCLFlag && part_idx == 1 &&
351
520695
        (lc->cu.part_mode == PART_2NxN ||
352
428038
         lc->cu.part_mode == PART_2NxnU ||
353

3321652
         lc->cu.part_mode == PART_2NxnD) ||
354
2909307
        is_diff_mer(s, xB1, yB1, x0, y0)) {
355
253293
        is_available_b1 = 0;
356
    } else {
357

2781446
        is_available_b1 = AVAILABLE(cand_up, B1);
358

2781446
        if (is_available_b1 &&
359
1912499
            !(is_available_a1 && COMPARE_MV_REFIDX(B1, A1))) {
360
2222800
            mergecandlist[nb_merge_cand] = TAB_MVF_PU(B1);
361
2222800
            if (merge_idx == nb_merge_cand)
362
1366222
                return;
363
856578
            nb_merge_cand++;
364
        }
365
    }
366
367
    // above right spatial merge candidate
368
1324087
    is_available_b0 = AVAILABLE(cand_up_right, B0) &&
369

2391773
                      xB0 < s->ps.sps->width &&
370

4184262
                      PRED_BLOCK_AVAILABLE(B0) &&
371
961900
                      !is_diff_mer(s, xB0, yB0, x0, y0);
372
373

1668517
    if (is_available_b0 &&
374
855002
        !(is_available_b1 && COMPARE_MV_REFIDX(B0, B1))) {
375
539792
        mergecandlist[nb_merge_cand] = TAB_MVF_PU(B0);
376
539792
        if (merge_idx == nb_merge_cand)
377
307251
            return;
378
232541
        nb_merge_cand++;
379
    }
380
381
    // left bottom spatial merge candidate
382
969770
    is_available_a0 = AVAILABLE(cand_bottom_left, A0) &&
383

1716970
                      yA0 < s->ps.sps->height &&
384

3189521
                      PRED_BLOCK_AVAILABLE(A0) &&
385
343727
                      !is_diff_mer(s, xA0, yA0, x0, y0);
386
387

1361266
    if (is_available_a0 &&
388
311887
        !(is_available_a1 && COMPARE_MV_REFIDX(A0, A1))) {
389
145702
        mergecandlist[nb_merge_cand] = TAB_MVF_PU(A0);
390
145702
        if (merge_idx == nb_merge_cand)
391
80344
            return;
392
65358
        nb_merge_cand++;
393
    }
394
395
    // above left spatial merge candidate
396

2312249
    is_available_b2 = AVAILABLE(cand_up_left, B2) &&
397
1031327
                      !is_diff_mer(s, xB2, yB2, x0, y0);
398
399

1280922
    if (is_available_b2 &&
400

949141
        !(is_available_a1 && COMPARE_MV_REFIDX(B2, A1)) &&
401

604091
        !(is_available_b1 && COMPARE_MV_REFIDX(B2, B1)) &&
402
        nb_merge_cand != 4) {
403
390296
        mergecandlist[nb_merge_cand] = TAB_MVF_PU(B2);
404
390296
        if (merge_idx == nb_merge_cand)
405
191529
            return;
406
198767
        nb_merge_cand++;
407
    }
408
409
    // temporal motion vector candidate
410
1089393
    if (s->sh.slice_temporal_mvp_enabled_flag &&
411
850638
        nb_merge_cand < s->sh.max_num_merge_cand) {
412
850638
        Mv mv_l0_col = { 0 }, mv_l1_col = { 0 };
413
850638
        int available_l0 = temporal_luma_motion_vector(s, x0, y0, nPbW, nPbH,
414
                                                       0, &mv_l0_col, 0);
415
1701276
        int available_l1 = (s->sh.slice_type == HEVC_SLICE_B) ?
416
759738
                           temporal_luma_motion_vector(s, x0, y0, nPbW, nPbH,
417
850638
                                                       0, &mv_l1_col, 1) : 0;
418
419

850638
        if (available_l0 || available_l1) {
420
774600
            mergecandlist[nb_merge_cand].pred_flag = available_l0 + (available_l1 << 1);
421
774600
            AV_ZERO16(mergecandlist[nb_merge_cand].ref_idx);
422
774600
            mergecandlist[nb_merge_cand].mv[0]      = mv_l0_col;
423
774600
            mergecandlist[nb_merge_cand].mv[1]      = mv_l1_col;
424
425
774600
            if (merge_idx == nb_merge_cand)
426
485409
                return;
427
289191
            nb_merge_cand++;
428
        }
429
    }
430
431
603984
    nb_orig_merge_cand = nb_merge_cand;
432
433
    // combined bi-predictive merge candidates  (applies for B slices)
434

603984
    if (s->sh.slice_type == HEVC_SLICE_B && nb_orig_merge_cand > 1 &&
435
331237
        nb_orig_merge_cand < s->sh.max_num_merge_cand) {
436
331237
        int comb_idx = 0;
437
438
698876
        for (comb_idx = 0; nb_merge_cand < s->sh.max_num_merge_cand &&
439
1066515
                           comb_idx < nb_orig_merge_cand * (nb_orig_merge_cand - 1); comb_idx++) {
440
650515
            int l0_cand_idx = l0_l1_cand_idx[comb_idx][0];
441
650515
            int l1_cand_idx = l0_l1_cand_idx[comb_idx][1];
442
650515
            MvField l0_cand = mergecandlist[l0_cand_idx];
443
650515
            MvField l1_cand = mergecandlist[l1_cand_idx];
444
445

650515
            if ((l0_cand.pred_flag & PF_L0) && (l1_cand.pred_flag & PF_L1) &&
446
432547
                (refPicList[0].list[l0_cand.ref_idx[0]] !=
447
432547
                 refPicList[1].list[l1_cand.ref_idx[1]] ||
448
108522
                 AV_RN32A(&l0_cand.mv[0]) != AV_RN32A(&l1_cand.mv[1]))) {
449
418331
                mergecandlist[nb_merge_cand].ref_idx[0]   = l0_cand.ref_idx[0];
450
418331
                mergecandlist[nb_merge_cand].ref_idx[1]   = l1_cand.ref_idx[1];
451
418331
                mergecandlist[nb_merge_cand].pred_flag    = PF_BI;
452
418331
                AV_COPY32(&mergecandlist[nb_merge_cand].mv[0], &l0_cand.mv[0]);
453
418331
                AV_COPY32(&mergecandlist[nb_merge_cand].mv[1], &l1_cand.mv[1]);
454
418331
                if (merge_idx == nb_merge_cand)
455
282876
                    return;
456
135455
                nb_merge_cand++;
457
            }
458
        }
459
    }
460
461
    // append Zero motion vector candidates
462
533174
    while (nb_merge_cand < s->sh.max_num_merge_cand) {
463
533174
        mergecandlist[nb_merge_cand].pred_flag    = PF_L0 + ((s->sh.slice_type == HEVC_SLICE_B) << 1);
464
533174
        AV_ZERO32(mergecandlist[nb_merge_cand].mv + 0);
465
533174
        AV_ZERO32(mergecandlist[nb_merge_cand].mv + 1);
466
533174
        mergecandlist[nb_merge_cand].ref_idx[0]   = zero_idx < nb_refs ? zero_idx : 0;
467
533174
        mergecandlist[nb_merge_cand].ref_idx[1]   = zero_idx < nb_refs ? zero_idx : 0;
468
469
533174
        if (merge_idx == nb_merge_cand)
470
321108
            return;
471
212066
        nb_merge_cand++;
472
212066
        zero_idx++;
473
    }
474
}
475
476
/*
477
 * 8.5.3.1.1 Derivation process of luma Mvs for merge mode
478
 */
479
6201567
void ff_hevc_luma_mv_merge_mode(HEVCContext *s, int x0, int y0, int nPbW,
480
                                int nPbH, int log2_cb_size, int part_idx,
481
                                int merge_idx, MvField *mv)
482
{
483
6201567
    int singleMCLFlag = 0;
484
6201567
    int nCS = 1 << log2_cb_size;
485
    MvField mergecand_list[MRG_MAX_NUM_CANDS];
486
6201567
    int nPbW2 = nPbW;
487
6201567
    int nPbH2 = nPbH;
488
6201567
    HEVCLocalContext *lc = s->HEVClc;
489
490

6201567
    if (s->ps.pps->log2_parallel_merge_level > 2 && nCS == 8) {
491
214635
        singleMCLFlag = 1;
492
214635
        x0            = lc->cu.x;
493
214635
        y0            = lc->cu.y;
494
214635
        nPbW          = nCS;
495
214635
        nPbH          = nCS;
496
214635
        part_idx      = 0;
497
    }
498
499
6201567
    ff_hevc_set_neighbour_available(s, x0, y0, nPbW, nPbH);
500
6201567
    derive_spatial_merge_candidates(s, x0, y0, nPbW, nPbH, log2_cb_size,
501
                                    singleMCLFlag, part_idx,
502
                                    merge_idx, mergecand_list);
503
504
6201567
    if (mergecand_list[merge_idx].pred_flag == PF_BI &&
505
3501583
        (nPbW2 + nPbH2) == 12) {
506
124136
        mergecand_list[merge_idx].pred_flag = PF_L0;
507
    }
508
509
6201567
    *mv = mergecand_list[merge_idx];
510
6201567
}
511
512
999948
static av_always_inline void dist_scale(HEVCContext *s, Mv *mv,
513
                                        int min_pu_width, int x, int y,
514
                                        int elist, int ref_idx_curr, int ref_idx)
515
{
516
999948
    RefPicList *refPicList = s->ref->refPicList;
517
999948
    MvField *tab_mvf       = s->ref->tab_mvf;
518
999948
    int ref_pic_elist      = refPicList[elist].list[TAB_MVF(x, y).ref_idx[elist]];
519
999948
    int ref_pic_curr       = refPicList[ref_idx_curr].list[ref_idx];
520
521
999948
    if (ref_pic_elist != ref_pic_curr) {
522
842468
        int poc_diff = s->poc - ref_pic_elist;
523
842468
        if (!poc_diff)
524
            poc_diff = 1;
525
842468
        mv_scale(mv, mv, poc_diff, s->poc - ref_pic_curr);
526
    }
527
999948
}
528
529
9072275
static int mv_mp_mode_mx(HEVCContext *s, int x, int y, int pred_flag_index,
530
                         Mv *mv, int ref_idx_curr, int ref_idx)
531
{
532
9072275
    MvField *tab_mvf = s->ref->tab_mvf;
533
9072275
    int min_pu_width = s->ps.sps->min_pu_width;
534
535
9072275
    RefPicList *refPicList = s->ref->refPicList;
536
537
9072275
    if (((TAB_MVF(x, y).pred_flag) & (1 << pred_flag_index)) &&
538
7042250
        refPicList[pred_flag_index].list[TAB_MVF(x, y).ref_idx[pred_flag_index]] == refPicList[ref_idx_curr].list[ref_idx]) {
539
3717871
        *mv = TAB_MVF(x, y).mv[pred_flag_index];
540
3717871
        return 1;
541
    }
542
5354404
    return 0;
543
}
544
545
1270578
static int mv_mp_mode_mx_lt(HEVCContext *s, int x, int y, int pred_flag_index,
546
                            Mv *mv, int ref_idx_curr, int ref_idx)
547
{
548
1270578
    MvField *tab_mvf = s->ref->tab_mvf;
549
1270578
    int min_pu_width = s->ps.sps->min_pu_width;
550
551
1270578
    RefPicList *refPicList = s->ref->refPicList;
552
553
1270578
    if ((TAB_MVF(x, y).pred_flag) & (1 << pred_flag_index)) {
554
1008984
        int currIsLongTerm     = refPicList[ref_idx_curr].isLongTerm[ref_idx];
555
556
1008984
        int colIsLongTerm =
557
1008984
            refPicList[pred_flag_index].isLongTerm[(TAB_MVF(x, y).ref_idx[pred_flag_index])];
558
559
1008984
        if (colIsLongTerm == currIsLongTerm) {
560
1004267
            *mv = TAB_MVF(x, y).mv[pred_flag_index];
561
1004267
            if (!currIsLongTerm)
562
999948
                dist_scale(s, mv, min_pu_width, x, y,
563
                           pred_flag_index, ref_idx_curr, ref_idx);
564
1004267
            return 1;
565
        }
566
    }
567
266311
    return 0;
568
}
569
570
#define MP_MX(v, pred, mx)                                      \
571
    mv_mp_mode_mx(s,                                            \
572
                  (x ## v) >> s->ps.sps->log2_min_pu_size,         \
573
                  (y ## v) >> s->ps.sps->log2_min_pu_size,         \
574
                  pred, &mx, ref_idx_curr, ref_idx)
575
576
#define MP_MX_LT(v, pred, mx)                                   \
577
    mv_mp_mode_mx_lt(s,                                         \
578
                     (x ## v) >> s->ps.sps->log2_min_pu_size,      \
579
                     (y ## v) >> s->ps.sps->log2_min_pu_size,      \
580
                     pred, &mx, ref_idx_curr, ref_idx)
581
582
2781475
void ff_hevc_luma_mv_mvp_mode(HEVCContext *s, int x0, int y0, int nPbW,
583
                              int nPbH, int log2_cb_size, int part_idx,
584
                              int merge_idx, MvField *mv,
585
                              int mvp_lx_flag, int LX)
586
{
587
2781475
    HEVCLocalContext *lc = s->HEVClc;
588
2781475
    MvField *tab_mvf = s->ref->tab_mvf;
589
2781475
    int isScaledFlag_L0 = 0;
590
2781475
    int availableFlagLXA0 = 1;
591
2781475
    int availableFlagLXB0 = 1;
592
2781475
    int numMVPCandLX = 0;
593
2781475
    int min_pu_width = s->ps.sps->min_pu_width;
594
595
    int xA0, yA0;
596
    int is_available_a0;
597
    int xA1, yA1;
598
    int is_available_a1;
599
    int xB0, yB0;
600
    int is_available_b0;
601
    int xB1, yB1;
602
    int is_available_b1;
603
    int xB2, yB2;
604
    int is_available_b2;
605
606
2781475
    Mv mvpcand_list[2] = { { 0 } };
607
    Mv mxA;
608
    Mv mxB;
609
    int ref_idx_curr;
610
2781475
    int ref_idx = 0;
611
    int pred_flag_index_l0;
612
    int pred_flag_index_l1;
613
614
2781475
    const int cand_bottom_left = lc->na.cand_bottom_left;
615
2781475
    const int cand_left        = lc->na.cand_left;
616
2781475
    const int cand_up_left     = lc->na.cand_up_left;
617
2781475
    const int cand_up          = lc->na.cand_up;
618
2781475
    const int cand_up_right    = lc->na.cand_up_right_sap;
619
2781475
    ref_idx_curr       = LX;
620
2781475
    ref_idx            = mv->ref_idx[LX];
621
2781475
    pred_flag_index_l0 = LX;
622
2781475
    pred_flag_index_l1 = !LX;
623
624
    // left bottom spatial candidate
625
2781475
    xA0 = x0 - 1;
626
2781475
    yA0 = y0 + nPbH;
627
628
1946491
    is_available_a0 = AVAILABLE(cand_bottom_left, A0) &&
629

6383778
                      yA0 < s->ps.sps->height &&
630
1655812
                      PRED_BLOCK_AVAILABLE(A0);
631
632
    //left spatial merge candidate
633
2781475
    xA1    = x0 - 1;
634
2781475
    yA1    = y0 + nPbH - 1;
635
636

2781475
    is_available_a1 = AVAILABLE(cand_left, A1);
637

2781475
    if (is_available_a0 || is_available_a1)
638
2479291
        isScaledFlag_L0 = 1;
639
640
2781475
    if (is_available_a0) {
641
731483
        if (MP_MX(A0, pred_flag_index_l0, mxA)) {
642
445590
            goto b_candidates;
643
        }
644
285893
        if (MP_MX(A0, pred_flag_index_l1, mxA)) {
645
47482
            goto b_candidates;
646
        }
647
    }
648
649
2288403
    if (is_available_a1) {
650
1976899
        if (MP_MX(A1, pred_flag_index_l0, mxA)) {
651
1115468
            goto b_candidates;
652
        }
653
861431
        if (MP_MX(A1, pred_flag_index_l1, mxA)) {
654
113885
            goto b_candidates;
655
        }
656
    }
657
658
1059050
    if (is_available_a0) {
659
193548
        if (MP_MX_LT(A0, pred_flag_index_l0, mxA)) {
660
141520
            goto b_candidates;
661
        }
662
52028
        if (MP_MX_LT(A0, pred_flag_index_l1, mxA)) {
663
51206
            goto b_candidates;
664
        }
665
    }
666
667
866324
    if (is_available_a1) {
668
563922
        if (MP_MX_LT(A1, pred_flag_index_l0, mxA)) {
669
384680
            goto b_candidates;
670
        }
671
179242
        if (MP_MX_LT(A1, pred_flag_index_l1, mxA)) {
672
176473
            goto b_candidates;
673
        }
674
    }
675
305171
    availableFlagLXA0 = 0;
676
677
2781475
b_candidates:
678
    // B candidates
679
    // above right spatial merge candidate
680
2781475
    xB0    = x0 + nPbW;
681
2781475
    yB0    = y0 - 1;
682
683
2130097
    is_available_b0 =  AVAILABLE(cand_up_right, B0) &&
684

6772348
                       xB0 < s->ps.sps->width &&
685
1860776
                       PRED_BLOCK_AVAILABLE(B0);
686
687
    // above spatial merge candidate
688
2781475
    xB1    = x0 + nPbW - 1;
689
2781475
    yB1    = y0 - 1;
690

2781475
    is_available_b1 = AVAILABLE(cand_up, B1);
691
692
    // above left spatial merge candidate
693
2781475
    xB2 = x0 - 1;
694
2781475
    yB2 = y0 - 1;
695

2781475
    is_available_b2 = AVAILABLE(cand_up_left, B2);
696
697
    // above right spatial merge candidate
698
2781475
    if (is_available_b0) {
699
1459248
        if (MP_MX(B0, pred_flag_index_l0, mxB)) {
700
907636
            goto scalef;
701
        }
702
551612
        if (MP_MX(B0, pred_flag_index_l1, mxB)) {
703
93879
            goto scalef;
704
        }
705
    }
706
707
    // above spatial merge candidate
708
1779960
    if (is_available_b1) {
709
1406200
        if (MP_MX(B1, pred_flag_index_l0, mxB)) {
710
712112
            goto scalef;
711
        }
712
694088
        if (MP_MX(B1, pred_flag_index_l1, mxB)) {
713
71087
            goto scalef;
714
        }
715
    }
716
717
    // above left spatial merge candidate
718
996761
    if (is_available_b2) {
719
646157
        if (MP_MX(B2, pred_flag_index_l0, mxB)) {
720
186893
            goto scalef;
721
        }
722
459264
        if (MP_MX(B2, pred_flag_index_l1, mxB)) {
723
23839
            goto scalef;
724
        }
725
    }
726
786029
    availableFlagLXB0 = 0;
727
728
2781475
scalef:
729
2781475
    if (!isScaledFlag_L0) {
730
302184
        if (availableFlagLXB0) {
731
185271
            availableFlagLXA0 = 1;
732
185271
            mxA = mxB;
733
        }
734
302184
        availableFlagLXB0 = 0;
735
736
        // XB0 and L1
737
302184
        if (is_available_b0) {
738
138938
            availableFlagLXB0 = MP_MX_LT(B0, pred_flag_index_l0, mxB);
739
138938
            if (!availableFlagLXB0)
740
16172
                availableFlagLXB0 = MP_MX_LT(B0, pred_flag_index_l1, mxB);
741
        }
742
743

302184
        if (is_available_b1 && !availableFlagLXB0) {
744
98132
            availableFlagLXB0 = MP_MX_LT(B1, pred_flag_index_l0, mxB);
745
98132
            if (!availableFlagLXB0)
746
12532
                availableFlagLXB0 = MP_MX_LT(B1, pred_flag_index_l1, mxB);
747
        }
748
749

302184
        if (is_available_b2 && !availableFlagLXB0) {
750
14351
            availableFlagLXB0 = MP_MX_LT(B2, pred_flag_index_l0, mxB);
751
14351
            if (!availableFlagLXB0)
752
1713
                availableFlagLXB0 = MP_MX_LT(B2, pred_flag_index_l1, mxB);
753
        }
754
    }
755
756
2781475
    if (availableFlagLXA0)
757
2661575
        mvpcand_list[numMVPCandLX++] = mxA;
758
759


2781475
    if (availableFlagLXB0 && (!availableFlagLXA0 || mxA.x != mxB.x || mxA.y != mxB.y))
760
1507960
        mvpcand_list[numMVPCandLX++] = mxB;
761
762
    //temporal motion vector prediction candidate
763

2781475
    if (numMVPCandLX < 2 && s->sh.slice_temporal_mvp_enabled_flag &&
764
        mvp_lx_flag == numMVPCandLX) {
765
        Mv mv_col;
766
389558
        int available_col = temporal_luma_motion_vector(s, x0, y0, nPbW,
767
                                                        nPbH, ref_idx,
768
                                                        &mv_col, LX);
769
389558
        if (available_col)
770
321087
            mvpcand_list[numMVPCandLX++] = mv_col;
771
    }
772
773
2781475
    mv->mv[LX] = mvpcand_list[mvp_lx_flag];
774
2781475
}