FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/h264_direct.c
Date: 2025-07-15 08:12:33
Exec Total Coverage
Lines: 439 445 98.7%
Functions: 8 8 100.0%
Branches: 300 316 94.9%
Line Branch Exec Source
1 /*
2 * H.26L/H.264/AVC/JVT/14496-10/... direct mb/block decoding
3 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /**
23 * @file
24 * H.264 / AVC / MPEG-4 part10 direct mb/block decoding.
25 * @author Michael Niedermayer <michaelni@gmx.at>
26 */
27
28 #include "avcodec.h"
29 #include "h264dec.h"
30 #include "h264_ps.h"
31 #include "mpegutils.h"
32 #include "rectangle.h"
33 #include "threadframe.h"
34
35 #include <assert.h>
36
37 27561 static int get_scale_factor(const H264SliceContext *sl,
38 int poc, int poc1, int i)
39 {
40 27561 int poc0 = sl->ref_list[0][i].poc;
41 27561 int64_t pocdiff = poc1 - (int64_t)poc0;
42 27561 int td = av_clip_int8(pocdiff);
43
44
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 27561 if (pocdiff != (int)pocdiff)
45 ✗ avpriv_request_sample(sl->h264->avctx, "pocdiff overflow");
46
47
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 27561 if (td == 0 || sl->ref_list[0][i].parent->long_ref) {
48 8137 return 256;
49 } else {
50 19424 int64_t pocdiff0 = poc - (int64_t)poc0;
51 19424 int tb = av_clip_int8(pocdiff0);
52 19424 int tx = (16384 + (FFABS(td) >> 1)) / td;
53
54
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 19424 if (pocdiff0 != (int)pocdiff0)
55 ✗ av_log(sl->h264->avctx, AV_LOG_DEBUG, "pocdiff0 overflow\n");
56
57 19424 return av_clip_intp2((tb * tx + 32) >> 6, 10);
58 }
59 }
60
61 7710 void ff_h264_direct_dist_scale_factor(const H264Context *const h,
62 H264SliceContext *sl)
63 {
64 18808 const int poc = FIELD_PICTURE(h) ? h->cur_pic_ptr->field_poc[h->picture_structure == PICT_BOTTOM_FIELD]
65
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 7710 : h->cur_pic_ptr->poc;
66 7710 const int poc1 = sl->ref_list[1][0].poc;
67 int i, field;
68
69
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 7710 if (FRAME_MBAFF(h))
70
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 1548 for (field = 0; field < 2; field++) {
71 1032 const int poc = h->cur_pic_ptr->field_poc[field];
72 1032 const int poc1 = sl->ref_list[1][0].parent->field_poc[field];
73
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 7636 for (i = 0; i < 2 * sl->ref_count[0]; i++)
74 6604 sl->dist_scale_factor_field[field][i ^ field] =
75 6604 get_scale_factor(sl, poc, poc1, i + 16);
76 }
77
78
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 28667 for (i = 0; i < sl->ref_count[0]; i++)
79 20957 sl->dist_scale_factor[i] = get_scale_factor(sl, poc, poc1, i);
80 7710 }
81
82 17484 static void fill_colmap(const H264Context *h, H264SliceContext *sl,
83 int map[2][16 + 32], int list,
84 int field, int colfield, int mbafi)
85 {
86 17484 const H264Picture *const ref1 = sl->ref_list[1][0].parent;
87 int j, old_ref, rfield;
88
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 17484 int start = mbafi ? 16 : 0;
89
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 17484 int end = mbafi ? 16 + 2 * sl->ref_count[0] : sl->ref_count[0];
90
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 17484 int interl = mbafi || h->picture_structure != PICT_FRAME;
91
92 /* bogus; fills in for missing frames */
93 17484 memset(map[list], 0, sizeof(map[list]));
94
95
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 52452 for (rfield = 0; rfield < 2; rfield++) {
96
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 72222 for (old_ref = 0; old_ref < ref1->ref_count[colfield][list]; old_ref++) {
97 37254 int poc = ref1->ref_poc[colfield][list][old_ref];
98
99
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 37254 if (!interl)
100 16814 poc |= 3;
101 // FIXME: store all MBAFF references so this is not needed
102
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 20440 else if (interl && (poc & 3) == 3)
103 5408 poc = (poc & ~3) + rfield + 1;
104
105
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 108734 for (j = start; j < end; j++) {
106 101342 if (4 * sl->ref_list[0][j].parent->frame_num +
107
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 101342 (sl->ref_list[0][j].reference & 3) == poc) {
108
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 29862 int cur_ref = mbafi ? (j - 16) ^ field : j;
109
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 29862 if (ref1->mbaff)
110 5754 map[list][2 * old_ref + (rfield ^ field) + 16] = cur_ref;
111
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 29862 if (rfield == field || !interl)
112 21514 map[list][old_ref] = cur_ref;
113 29862 break;
114 }
115 }
116 }
117 }
118 17484 }
119
120 37588 void ff_h264_direct_ref_list_init(const H264Context *const h, H264SliceContext *sl)
121 {
122 37588 H264Ref *const ref1 = &sl->ref_list[1][0];
123 37588 H264Picture *const cur = h->cur_pic_ptr;
124 int list, j, field;
125 37588 int sidx = (h->picture_structure & 1) ^ 1;
126 37588 int ref1sidx = (ref1->reference & 1) ^ 1;
127
128
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 83992 for (list = 0; list < sl->list_count; list++) {
129 46404 cur->ref_count[sidx][list] = sl->ref_count[list];
130
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 187784 for (j = 0; j < sl->ref_count[list]; j++)
131 141380 cur->ref_poc[sidx][list][j] = 4 * sl->ref_list[list][j].parent->frame_num +
132 141380 (sl->ref_list[list][j].reference & 3);
133 }
134
135
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 37588 if (h->picture_structure == PICT_FRAME) {
136 28428 memcpy(cur->ref_count[1], cur->ref_count[0], sizeof(cur->ref_count[0]));
137 28428 memcpy(cur->ref_poc[1], cur->ref_poc[0], sizeof(cur->ref_poc[0]));
138 }
139
140
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 37588 if (h->current_slice == 0) {
141 28414 cur->mbaff = FRAME_MBAFF(h);
142 } else {
143
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 9174 av_assert0(cur->mbaff == FRAME_MBAFF(h));
144 }
145
146 37588 sl->col_fieldoff = 0;
147
148
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 37588 if (sl->list_count != 2 || !sl->ref_count[1])
149 24294 return;
150
151
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 13294 if (h->picture_structure == PICT_FRAME) {
152 8299 int cur_poc = h->cur_pic_ptr->poc;
153 8299 const int *col_poc = sl->ref_list[1][0].parent->field_poc;
154
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 8299 if (col_poc[0] == INT_MAX && col_poc[1] == INT_MAX) {
155 10 av_log(h->avctx, AV_LOG_ERROR, "co located POCs unavailable\n");
156 10 sl->col_parity = 1;
157 } else
158 8289 sl->col_parity = (FFABS(col_poc[0] - (int64_t)cur_poc) >=
159 8289 FFABS(col_poc[1] - (int64_t)cur_poc));
160 8299 ref1sidx =
161 8299 sidx = sl->col_parity;
162 // FL -> FL & differ parity
163
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 4995 } else if (!(h->picture_structure & sl->ref_list[1][0].reference) &&
164
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 1866 !sl->ref_list[1][0].parent->mbaff) {
165 1728 sl->col_fieldoff = 2 * sl->ref_list[1][0].reference - 3;
166 }
167
168
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 13294 if (sl->slice_type_nos != AV_PICTURE_TYPE_B || sl->direct_spatial_mv_pred)
169 5584 return;
170
171
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 23130 for (list = 0; list < 2; list++) {
172 15420 fill_colmap(h, sl, sl->map_col_to_list0, list, sidx, ref1sidx, 0);
173
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 15420 if (FRAME_MBAFF(h))
174
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 3096 for (field = 0; field < 2; field++)
175 2064 fill_colmap(h, sl, sl->map_col_to_list0_field[field], list, field,
176 field, 1);
177 }
178 }
179
180 4594762 static void await_reference_mb_row(const H264Context *const h, H264Ref *ref,
181 int mb_y)
182 {
183 4594762 int ref_field = ref->reference - 1;
184 4594762 int ref_field_picture = ref->parent->field_picture;
185 4594762 int ref_height = 16 * h->mb_height >> ref_field_picture;
186
187
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 4594762 if (!HAVE_THREADS || !(h->avctx->active_thread_type & FF_THREAD_FRAME))
188 4565879 return;
189
190 /* FIXME: It can be safe to access mb stuff
191 * even if pixels aren't deblocked yet. */
192
193
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 57766 ff_thread_await_progress(&ref->parent->tf,
194
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 28883 FFMIN(16 * mb_y >> ref_field_picture,
195 ref_height - 1),
196 ref_field_picture && ref_field);
197 }
198
199 2998122 static void pred_spatial_direct_motion(const H264Context *const h, H264SliceContext *sl,
200 int *mb_type)
201 {
202 2998122 int b8_stride = 2;
203 2998122 int b4_stride = h->b_stride;
204 2998122 int mb_xy = sl->mb_xy, mb_y = sl->mb_y;
205 int mb_type_col[2];
206 const int16_t (*l1mv0)[2], (*l1mv1)[2];
207 const int8_t *l1ref0, *l1ref1;
208 2998122 const int is_b8x8 = IS_8X8(*mb_type);
209 2998122 unsigned int sub_mb_type = MB_TYPE_L0L1;
210 int i8, i4;
211 int ref[2];
212 int mv[2];
213 int list;
214
215 assert(sl->ref_list[1][0].reference & 3);
216
217 2998122 await_reference_mb_row(h, &sl->ref_list[1][0],
218 2998122 sl->mb_y + !!IS_INTERLACED(*mb_type));
219
220 #define MB_TYPE_16x16_OR_INTRA (MB_TYPE_16x16 | MB_TYPE_INTRA4x4 | \
221 MB_TYPE_INTRA16x16 | MB_TYPE_INTRA_PCM)
222
223 /* ref = min(neighbors) */
224
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 8994366 for (list = 0; list < 2; list++) {
225 5996244 int left_ref = sl->ref_cache[list][scan8[0] - 1];
226 5996244 int top_ref = sl->ref_cache[list][scan8[0] - 8];
227 5996244 int refc = sl->ref_cache[list][scan8[0] - 8 + 4];
228 5996244 const int16_t *C = sl->mv_cache[list][scan8[0] - 8 + 4];
229
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 5996244 if (refc == PART_NOT_AVAILABLE) {
230 739528 refc = sl->ref_cache[list][scan8[0] - 8 - 1];
231 739528 C = sl->mv_cache[list][scan8[0] - 8 - 1];
232 }
233 5996244 ref[list] = FFMIN3((unsigned)left_ref,
234 (unsigned)top_ref,
235 (unsigned)refc);
236
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 5996244 if (ref[list] >= 0) {
237 /* This is just pred_motion() but with the cases removed that
238 * cannot happen for direct blocks. */
239 5493143 const int16_t *const A = sl->mv_cache[list][scan8[0] - 1];
240 5493143 const int16_t *const B = sl->mv_cache[list][scan8[0] - 8];
241
242 5493143 int match_count = (left_ref == ref[list]) +
243 5493143 (top_ref == ref[list]) +
244 5493143 (refc == ref[list]);
245
246
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 5493143 if (match_count > 1) { // most common
247 4873325 mv[list] = pack16to32(mid_pred(A[0], B[0], C[0]),
248 4873325 mid_pred(A[1], B[1], C[1]));
249 } else {
250 assert(match_count == 1);
251
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 619818 if (left_ref == ref[list])
252 486899 mv[list] = AV_RN32A(A);
253
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 132919 else if (top_ref == ref[list])
254 62488 mv[list] = AV_RN32A(B);
255 else
256 70431 mv[list] = AV_RN32A(C);
257 }
258 av_assert2(ref[list] < (sl->ref_count[list] << !!FRAME_MBAFF(h)));
259 } else {
260 503101 int mask = ~(MB_TYPE_L0 << (2 * list));
261 503101 mv[list] = 0;
262 503101 ref[list] = -1;
263
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 503101 if (!is_b8x8)
264 477154 *mb_type &= mask;
265 503101 sub_mb_type &= mask;
266 }
267 }
268
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 2998122 if (ref[0] < 0 && ref[1] < 0) {
269 6735 ref[0] = ref[1] = 0;
270
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 6735 if (!is_b8x8)
271 5843 *mb_type |= MB_TYPE_L0L1;
272 6735 sub_mb_type |= MB_TYPE_L0L1;
273 }
274
275
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 2998122 if (!(is_b8x8 | mv[0] | mv[1])) {
276 1906520 fill_rectangle(&sl->ref_cache[0][scan8[0]], 4, 4, 8, (uint8_t)ref[0], 1);
277 1906520 fill_rectangle(&sl->ref_cache[1][scan8[0]], 4, 4, 8, (uint8_t)ref[1], 1);
278 1906520 fill_rectangle(&sl->mv_cache[0][scan8[0]], 4, 4, 8, 0, 4);
279 1906520 fill_rectangle(&sl->mv_cache[1][scan8[0]], 4, 4, 8, 0, 4);
280 1906520 *mb_type = (*mb_type & ~(MB_TYPE_8x8 | MB_TYPE_16x8 | MB_TYPE_8x16 |
281 MB_TYPE_P1L0 | MB_TYPE_P1L1)) |
282 1906520 MB_TYPE_16x16 | MB_TYPE_DIRECT2;
283 1906520 return;
284 }
285
286
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 1091602 if (IS_INTERLACED(sl->ref_list[1][0].parent->mb_type[mb_xy])) { // AFL/AFR/FR/FL -> AFL/FL
287
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 725700 if (!IS_INTERLACED(*mb_type)) { // AFR/FR -> AFL/FL
288 43571 mb_y = (sl->mb_y & ~1) + sl->col_parity;
289 43571 mb_xy = sl->mb_x +
290 43571 ((sl->mb_y & ~1) + sl->col_parity) * h->mb_stride;
291 43571 b8_stride = 0;
292 } else {
293 682129 mb_y += sl->col_fieldoff;
294 682129 mb_xy += h->mb_stride * sl->col_fieldoff; // non-zero for FL -> FL & differ parity
295 }
296 725700 goto single_col;
297 } else { // AFL/AFR/FR/FL -> AFR/FR
298
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 365902 if (IS_INTERLACED(*mb_type)) { // AFL /FL -> AFR/FR
299 51346 mb_y = sl->mb_y & ~1;
300 51346 mb_xy = (sl->mb_y & ~1) * h->mb_stride + sl->mb_x;
301 51346 mb_type_col[0] = sl->ref_list[1][0].parent->mb_type[mb_xy];
302 51346 mb_type_col[1] = sl->ref_list[1][0].parent->mb_type[mb_xy + h->mb_stride];
303 51346 b8_stride = 2 + 4 * h->mb_stride;
304 51346 b4_stride *= 6;
305 51346 if (IS_INTERLACED(mb_type_col[0]) !=
306
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 51346 IS_INTERLACED(mb_type_col[1])) {
307 ✗ mb_type_col[0] &= ~MB_TYPE_INTERLACED;
308 ✗ mb_type_col[1] &= ~MB_TYPE_INTERLACED;
309 }
310
311 51346 sub_mb_type |= MB_TYPE_16x16 | MB_TYPE_DIRECT2; /* B_SUB_8x8 */
312
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 51346 if ((mb_type_col[0] & MB_TYPE_16x16_OR_INTRA) &&
313
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 40827 (mb_type_col[1] & MB_TYPE_16x16_OR_INTRA) &&
314 !is_b8x8) {
315 32330 *mb_type |= MB_TYPE_16x8 | MB_TYPE_DIRECT2; /* B_16x8 */
316 } else {
317 19016 *mb_type |= MB_TYPE_8x8;
318 }
319 } else { // AFR/FR -> AFR/FR
320 314556 single_col:
321 1040256 mb_type_col[0] =
322 1040256 mb_type_col[1] = sl->ref_list[1][0].parent->mb_type[mb_xy];
323
324 1040256 sub_mb_type |= MB_TYPE_16x16 | MB_TYPE_DIRECT2; /* B_SUB_8x8 */
325
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 1040256 if (!is_b8x8 && (mb_type_col[0] & MB_TYPE_16x16_OR_INTRA)) {
326 863235 *mb_type |= MB_TYPE_16x16 | MB_TYPE_DIRECT2; /* B_16x16 */
327
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 177021 } else if (!is_b8x8 &&
328
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 102153 (mb_type_col[0] & (MB_TYPE_16x8 | MB_TYPE_8x16))) {
329 57267 *mb_type |= MB_TYPE_DIRECT2 |
330 57267 (mb_type_col[0] & (MB_TYPE_16x8 | MB_TYPE_8x16));
331 } else {
332
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 119754 if (!h->ps.sps->direct_8x8_inference_flag) {
333 /* FIXME: Save sub mb types from previous frames (or derive
334 * from MVs) so we know exactly what block size to use. */
335 21562 sub_mb_type += (MB_TYPE_8x8 - MB_TYPE_16x16); /* B_SUB_4x4 */
336 }
337 119754 *mb_type |= MB_TYPE_8x8;
338 }
339 }
340 }
341
342 1091602 await_reference_mb_row(h, &sl->ref_list[1][0], mb_y);
343
344 1091602 l1mv0 = (void*)&sl->ref_list[1][0].parent->motion_val[0][h->mb2b_xy[mb_xy]];
345 1091602 l1mv1 = (void*)&sl->ref_list[1][0].parent->motion_val[1][h->mb2b_xy[mb_xy]];
346 1091602 l1ref0 = &sl->ref_list[1][0].parent->ref_index[0][4 * mb_xy];
347 1091602 l1ref1 = &sl->ref_list[1][0].parent->ref_index[1][4 * mb_xy];
348
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 1091602 if (!b8_stride) {
349
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 43571 if (sl->mb_y & 1) {
350 22047 l1ref0 += 2;
351 22047 l1ref1 += 2;
352 22047 l1mv0 += 2 * b4_stride;
353 22047 l1mv1 += 2 * b4_stride;
354 }
355 }
356
357
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 1091602 if (IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col[0])) {
358 94917 int n = 0;
359
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 474585 for (i8 = 0; i8 < 4; i8++) {
360 379668 int x8 = i8 & 1;
361 379668 int y8 = i8 >> 1;
362 379668 int xy8 = x8 + y8 * b8_stride;
363 379668 int xy4 = x8 * 3 + y8 * b4_stride;
364 int a, b;
365
366
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✓ Branch 3 taken 39695 times.
 379668 if (is_b8x8 && !IS_DIRECT(sl->sub_mb_type[i8]))
367 27121 continue;
368 352547 sl->sub_mb_type[i8] = sub_mb_type;
369
370 352547 fill_rectangle(&sl->ref_cache[0][scan8[i8 * 4]], 2, 2, 8,
371 352547 (uint8_t)ref[0], 1);
372 352547 fill_rectangle(&sl->ref_cache[1][scan8[i8 * 4]], 2, 2, 8,
373 352547 (uint8_t)ref[1], 1);
374
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✗ Branch 3 not taken.
 352547 if (!IS_INTRA(mb_type_col[y8]) && !sl->ref_list[1][0].parent->long_ref &&
375
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 197262 ((l1ref0[xy8] == 0 &&
376
2/2
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✓ Branch 1 taken 124020 times.
 134513 FFABS(l1mv0[xy4][0]) <= 1 &&
377
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✓ Branch 1 taken 6033 times.
 10493 FFABS(l1mv0[xy4][1]) <= 1) ||
378
2/2
✓ Branch 0 taken 12234 times.
✓ Branch 1 taken 178995 times.
 191229 (l1ref0[xy8] < 0 &&
379
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✓ Branch 0 taken 9667 times.
✓ Branch 1 taken 2567 times.
 12234 l1ref1[xy8] == 0 &&
380
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✓ Branch 1 taken 8841 times.
 9667 FFABS(l1mv1[xy4][0]) <= 1 &&
381
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✓ Branch 1 taken 324 times.
 826 FFABS(l1mv1[xy4][1]) <= 1))) {
382 6535 a =
383 6535 b = 0;
384
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✓ Branch 1 taken 6020 times.
 6535 if (ref[0] > 0)
385 515 a = mv[0];
386
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✓ Branch 1 taken 6376 times.
 6535 if (ref[1] > 0)
387 159 b = mv[1];
388 6535 n++;
389 } else {
390 346012 a = mv[0];
391 346012 b = mv[1];
392 }
393 352547 fill_rectangle(&sl->mv_cache[0][scan8[i8 * 4]], 2, 2, 8, a, 4);
394 352547 fill_rectangle(&sl->mv_cache[1][scan8[i8 * 4]], 2, 2, 8, b, 4);
395 }
396
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✓ Branch 1 taken 16704 times.
✓ Branch 2 taken 77034 times.
✓ Branch 3 taken 1179 times.
 94917 if (!is_b8x8 && !(n & 3))
397 77034 *mb_type = (*mb_type & ~(MB_TYPE_8x8 | MB_TYPE_16x8 | MB_TYPE_8x16 |
398 MB_TYPE_P1L0 | MB_TYPE_P1L1)) |
399 77034 MB_TYPE_16x16 | MB_TYPE_DIRECT2;
400
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✓ Branch 1 taken 162364 times.
 996685 } else if (IS_16X16(*mb_type)) {
401 int a, b;
402
403 834321 fill_rectangle(&sl->ref_cache[0][scan8[0]], 4, 4, 8, (uint8_t)ref[0], 1);
404 834321 fill_rectangle(&sl->ref_cache[1][scan8[0]], 4, 4, 8, (uint8_t)ref[1], 1);
405
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✓ Branch 2 taken 620968 times.
✓ Branch 3 taken 11 times.
 834321 if (!IS_INTRA(mb_type_col[0]) && !sl->ref_list[1][0].parent->long_ref &&
406
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✓ Branch 1 taken 274467 times.
 620968 ((l1ref0[0] == 0 &&
407
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✓ Branch 0 taken 67529 times.
✓ Branch 1 taken 278972 times.
 346501 FFABS(l1mv0[0][0]) <= 1 &&
408
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✓ Branch 0 taken 37351 times.
✓ Branch 1 taken 30178 times.
 67529 FFABS(l1mv0[0][1]) <= 1) ||
409
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✓ Branch 1 taken 572534 times.
✓ Branch 2 taken 17491 times.
✓ Branch 3 taken 765 times.
 590790 (l1ref0[0] < 0 && !l1ref1[0] &&
410
2/2
✓ Branch 0 taken 4813 times.
✓ Branch 1 taken 12678 times.
 17491 FFABS(l1mv1[0][0]) <= 1 &&
411
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✓ Branch 1 taken 865 times.
 4813 FFABS(l1mv1[0][1]) <= 1 &&
412
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✗ Branch 1 not taken.
 3948 h->x264_build > 33U))) {
413 34126 a = b = 0;
414
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✓ Branch 1 taken 27060 times.
 34126 if (ref[0] > 0)
415 7066 a = mv[0];
416
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✓ Branch 1 taken 29401 times.
 34126 if (ref[1] > 0)
417 4725 b = mv[1];
418 } else {
419 800195 a = mv[0];
420 800195 b = mv[1];
421 }
422 834321 fill_rectangle(&sl->mv_cache[0][scan8[0]], 4, 4, 8, a, 4);
423 834321 fill_rectangle(&sl->mv_cache[1][scan8[0]], 4, 4, 8, b, 4);
424 } else {
425 162364 int n = 0;
426
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✓ Branch 0 taken 649456 times.
✓ Branch 1 taken 162364 times.
 811820 for (i8 = 0; i8 < 4; i8++) {
427 649456 const int x8 = i8 & 1;
428 649456 const int y8 = i8 >> 1;
429
430
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✓ Branch 2 taken 122749 times.
✓ Branch 3 taken 146435 times.
 649456 if (is_b8x8 && !IS_DIRECT(sl->sub_mb_type[i8]))
431 122749 continue;
432 526707 sl->sub_mb_type[i8] = sub_mb_type;
433
434 526707 fill_rectangle(&sl->mv_cache[0][scan8[i8 * 4]], 2, 2, 8, mv[0], 4);
435 526707 fill_rectangle(&sl->mv_cache[1][scan8[i8 * 4]], 2, 2, 8, mv[1], 4);
436 526707 fill_rectangle(&sl->ref_cache[0][scan8[i8 * 4]], 2, 2, 8,
437 526707 (uint8_t)ref[0], 1);
438 526707 fill_rectangle(&sl->ref_cache[1][scan8[i8 * 4]], 2, 2, 8,
439 526707 (uint8_t)ref[1], 1);
440
441 assert(b8_stride == 2);
442 /* col_zero_flag */
443
4/4
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✓ Branch 2 taken 486860 times.
✓ Branch 3 taken 132 times.
 526707 if (!IS_INTRA(mb_type_col[0]) && !sl->ref_list[1][0].parent->long_ref &&
444
2/2
✓ Branch 0 taken 170416 times.
✓ Branch 1 taken 316444 times.
 486860 (l1ref0[i8] == 0 ||
445
2/2
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✓ Branch 1 taken 158049 times.
 170416 (l1ref0[i8] < 0 &&
446
2/2
✓ Branch 0 taken 11249 times.
✓ Branch 1 taken 1118 times.
 12367 l1ref1[i8] == 0 &&
447
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✗ Branch 1 not taken.
 11249 h->x264_build > 33U))) {
448
2/2
✓ Branch 0 taken 316444 times.
✓ Branch 1 taken 11249 times.
 327693 const int16_t (*l1mv)[2] = l1ref0[i8] == 0 ? l1mv0 : l1mv1;
449
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✓ Branch 1 taken 30303 times.
 327693 if (IS_SUB_8X8(sub_mb_type)) {
450 297390 const int16_t *mv_col = l1mv[x8 * 3 + y8 * 3 * b4_stride];
451
4/4
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✓ Branch 2 taken 25113 times.
✓ Branch 3 taken 22253 times.
 297390 if (FFABS(mv_col[0]) <= 1 && FFABS(mv_col[1]) <= 1) {
452
2/2
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✓ Branch 1 taken 3742 times.
 25113 if (ref[0] == 0)
453 21371 fill_rectangle(&sl->mv_cache[0][scan8[i8 * 4]], 2, 2,
454 8, 0, 4);
455
2/2
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✓ Branch 1 taken 2257 times.
 25113 if (ref[1] == 0)
456 22856 fill_rectangle(&sl->mv_cache[1][scan8[i8 * 4]], 2, 2,
457 8, 0, 4);
458 25113 n += 4;
459 }
460 } else {
461 30303 int m = 0;
462
2/2
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 151515 for (i4 = 0; i4 < 4; i4++) {
463 121212 const int16_t *mv_col = l1mv[x8 * 2 + (i4 & 1) +
464 121212 (y8 * 2 + (i4 >> 1)) * b4_stride];
465
4/4
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✓ Branch 1 taken 112664 times.
✓ Branch 2 taken 3036 times.
✓ Branch 3 taken 5512 times.
 121212 if (FFABS(mv_col[0]) <= 1 && FFABS(mv_col[1]) <= 1) {
466
2/2
✓ Branch 0 taken 2071 times.
✓ Branch 1 taken 965 times.
 3036 if (ref[0] == 0)
467 2071 AV_ZERO32(sl->mv_cache[0][scan8[i8 * 4 + i4]]);
468
2/2
✓ Branch 0 taken 2790 times.
✓ Branch 1 taken 246 times.
 3036 if (ref[1] == 0)
469 2790 AV_ZERO32(sl->mv_cache[1][scan8[i8 * 4 + i4]]);
470 3036 m++;
471 }
472 }
473
2/2
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✓ Branch 1 taken 313 times.
 30303 if (!(m & 3))
474 29990 sl->sub_mb_type[i8] += MB_TYPE_16x16 - MB_TYPE_8x8;
475 30303 n += m;
476 }
477 }
478 }
479
4/4
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✓ Branch 2 taken 86752 times.
✓ Branch 3 taken 8316 times.
 162364 if (!is_b8x8 && !(n & 15))
480 86752 *mb_type = (*mb_type & ~(MB_TYPE_8x8 | MB_TYPE_16x8 | MB_TYPE_8x16 |
481 MB_TYPE_P1L0 | MB_TYPE_P1L1)) |
482 86752 MB_TYPE_16x16 | MB_TYPE_DIRECT2;
483 }
484 }
485
486 252519 static void pred_temp_direct_motion(const H264Context *const h, H264SliceContext *sl,
487 int *mb_type)
488 {
489 252519 int b8_stride = 2;
490 252519 int b4_stride = h->b_stride;
491 252519 int mb_xy = sl->mb_xy, mb_y = sl->mb_y;
492 int mb_type_col[2];
493 const int16_t (*l1mv0)[2], (*l1mv1)[2];
494 const int8_t *l1ref0, *l1ref1;
495 252519 const int is_b8x8 = IS_8X8(*mb_type);
496 unsigned int sub_mb_type;
497 int i8, i4;
498
499 assert(sl->ref_list[1][0].reference & 3);
500
501 252519 await_reference_mb_row(h, &sl->ref_list[1][0],
502 252519 sl->mb_y + !!IS_INTERLACED(*mb_type));
503
504
2/2
✓ Branch 0 taken 89480 times.
✓ Branch 1 taken 163039 times.
 252519 if (IS_INTERLACED(sl->ref_list[1][0].parent->mb_type[mb_xy])) { // AFL/AFR/FR/FL -> AFL/FL
505
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✓ Branch 0 taken 15717 times.
✓ Branch 1 taken 73763 times.
 89480 if (!IS_INTERLACED(*mb_type)) { // AFR/FR -> AFL/FL
506 15717 mb_y = (sl->mb_y & ~1) + sl->col_parity;
507 15717 mb_xy = sl->mb_x +
508 15717 ((sl->mb_y & ~1) + sl->col_parity) * h->mb_stride;
509 15717 b8_stride = 0;
510 } else {
511 73763 mb_y += sl->col_fieldoff;
512 73763 mb_xy += h->mb_stride * sl->col_fieldoff; // non-zero for FL -> FL & differ parity
513 }
514 89480 goto single_col;
515 } else { // AFL/AFR/FR/FL -> AFR/FR
516
2/2
✓ Branch 0 taken 16549 times.
✓ Branch 1 taken 146490 times.
 163039 if (IS_INTERLACED(*mb_type)) { // AFL /FL -> AFR/FR
517 16549 mb_y = sl->mb_y & ~1;
518 16549 mb_xy = sl->mb_x + (sl->mb_y & ~1) * h->mb_stride;
519 16549 mb_type_col[0] = sl->ref_list[1][0].parent->mb_type[mb_xy];
520 16549 mb_type_col[1] = sl->ref_list[1][0].parent->mb_type[mb_xy + h->mb_stride];
521 16549 b8_stride = 2 + 4 * h->mb_stride;
522 16549 b4_stride *= 6;
523 16549 if (IS_INTERLACED(mb_type_col[0]) !=
524
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 16549 IS_INTERLACED(mb_type_col[1])) {
525 ✗ mb_type_col[0] &= ~MB_TYPE_INTERLACED;
526 ✗ mb_type_col[1] &= ~MB_TYPE_INTERLACED;
527 }
528
529 16549 sub_mb_type = MB_TYPE_16x16 | MB_TYPE_P0L0 | MB_TYPE_P0L1 |
530 MB_TYPE_DIRECT2; /* B_SUB_8x8 */
531
532
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 16549 if ((mb_type_col[0] & MB_TYPE_16x16_OR_INTRA) &&
533
4/4
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✓ Branch 2 taken 5873 times.
✓ Branch 3 taken 1336 times.
 9887 (mb_type_col[1] & MB_TYPE_16x16_OR_INTRA) &&
534 !is_b8x8) {
535 5873 *mb_type |= MB_TYPE_16x8 | MB_TYPE_L0L1 |
536 MB_TYPE_DIRECT2; /* B_16x8 */
537 } else {
538 10676 *mb_type |= MB_TYPE_8x8 | MB_TYPE_L0L1;
539 }
540 } else { // AFR/FR -> AFR/FR
541 146490 single_col:
542 235970 mb_type_col[0] =
543 235970 mb_type_col[1] = sl->ref_list[1][0].parent->mb_type[mb_xy];
544
545 235970 sub_mb_type = MB_TYPE_16x16 | MB_TYPE_P0L0 | MB_TYPE_P0L1 |
546 MB_TYPE_DIRECT2; /* B_SUB_8x8 */
547
4/4
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✓ Branch 2 taken 135391 times.
✓ Branch 3 taken 54999 times.
 235970 if (!is_b8x8 && (mb_type_col[0] & MB_TYPE_16x16_OR_INTRA)) {
548 135391 *mb_type |= MB_TYPE_16x16 | MB_TYPE_P0L0 | MB_TYPE_P0L1 |
549 MB_TYPE_DIRECT2; /* B_16x16 */
550
2/2
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 100579 } else if (!is_b8x8 &&
551
2/2
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✓ Branch 1 taken 19858 times.
 54999 (mb_type_col[0] & (MB_TYPE_16x8 | MB_TYPE_8x16))) {
552 35141 *mb_type |= MB_TYPE_L0L1 | MB_TYPE_DIRECT2 |
553 35141 (mb_type_col[0] & (MB_TYPE_16x8 | MB_TYPE_8x16));
554 } else {
555
2/2
✓ Branch 0 taken 10593 times.
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 65438 if (!h->ps.sps->direct_8x8_inference_flag) {
556 /* FIXME: save sub mb types from previous frames (or derive
557 * from MVs) so we know exactly what block size to use */
558 10593 sub_mb_type = MB_TYPE_8x8 | MB_TYPE_P0L0 | MB_TYPE_P0L1 |
559 MB_TYPE_DIRECT2; /* B_SUB_4x4 */
560 }
561 65438 *mb_type |= MB_TYPE_8x8 | MB_TYPE_L0L1;
562 }
563 }
564 }
565
566 252519 await_reference_mb_row(h, &sl->ref_list[1][0], mb_y);
567
568 252519 l1mv0 = (void*)&sl->ref_list[1][0].parent->motion_val[0][h->mb2b_xy[mb_xy]];
569 252519 l1mv1 = (void*)&sl->ref_list[1][0].parent->motion_val[1][h->mb2b_xy[mb_xy]];
570 252519 l1ref0 = &sl->ref_list[1][0].parent->ref_index[0][4 * mb_xy];
571 252519 l1ref1 = &sl->ref_list[1][0].parent->ref_index[1][4 * mb_xy];
572
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 252519 if (!b8_stride) {
573
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 15717 if (sl->mb_y & 1) {
574 7766 l1ref0 += 2;
575 7766 l1ref1 += 2;
576 7766 l1mv0 += 2 * b4_stride;
577 7766 l1mv1 += 2 * b4_stride;
578 }
579 }
580
581 {
582 252519 const int *map_col_to_list0[2] = { sl->map_col_to_list0[0],
583 252519 sl->map_col_to_list0[1] };
584 252519 const int *dist_scale_factor = sl->dist_scale_factor;
585 int ref_offset;
586
587
4/4
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 252519 if (FRAME_MBAFF(h) && IS_INTERLACED(*mb_type)) {
588 20451 map_col_to_list0[0] = sl->map_col_to_list0_field[sl->mb_y & 1][0];
589 20451 map_col_to_list0[1] = sl->map_col_to_list0_field[sl->mb_y & 1][1];
590 20451 dist_scale_factor = sl->dist_scale_factor_field[sl->mb_y & 1];
591 }
592 252519 ref_offset = (sl->ref_list[1][0].parent->mbaff << 4) & (mb_type_col[0] >> 3);
593
594
2/2
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 252519 if (IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col[0])) {
595
2/2
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 32266 int y_shift = 2 * !IS_INTERLACED(*mb_type);
596 assert(h->ps.sps->direct_8x8_inference_flag);
597
598
2/2
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✓ Branch 1 taken 32266 times.
 161330 for (i8 = 0; i8 < 4; i8++) {
599 129064 const int x8 = i8 & 1;
600 129064 const int y8 = i8 >> 1;
601 int ref0, scale;
602 129064 const int16_t (*l1mv)[2] = l1mv0;
603
604
4/4
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 129064 if (is_b8x8 && !IS_DIRECT(sl->sub_mb_type[i8]))
605 22674 continue;
606 106390 sl->sub_mb_type[i8] = sub_mb_type;
607
608 106390 fill_rectangle(&sl->ref_cache[1][scan8[i8 * 4]], 2, 2, 8, 0, 1);
609
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 106390 if (IS_INTRA(mb_type_col[y8])) {
610 25592 fill_rectangle(&sl->ref_cache[0][scan8[i8 * 4]], 2, 2, 8, 0, 1);
611 25592 fill_rectangle(&sl->mv_cache[0][scan8[i8 * 4]], 2, 2, 8, 0, 4);
612 25592 fill_rectangle(&sl->mv_cache[1][scan8[i8 * 4]], 2, 2, 8, 0, 4);
613 25592 continue;
614 }
615
616 80798 ref0 = l1ref0[x8 + y8 * b8_stride];
617
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 80798 if (ref0 >= 0)
618 80605 ref0 = map_col_to_list0[0][ref0 + ref_offset];
619 else {
620 193 ref0 = map_col_to_list0[1][l1ref1[x8 + y8 * b8_stride] +
621 ref_offset];
622 193 l1mv = l1mv1;
623 }
624 80798 scale = dist_scale_factor[ref0];
625 80798 fill_rectangle(&sl->ref_cache[0][scan8[i8 * 4]], 2, 2, 8,
626 ref0, 1);
627
628 {
629 80798 const int16_t *mv_col = l1mv[x8 * 3 + y8 * b4_stride];
630 80798 int my_col = (mv_col[1] * (1 << y_shift)) / 2;
631 80798 int mx = (scale * mv_col[0] + 128) >> 8;
632 80798 int my = (scale * my_col + 128) >> 8;
633 80798 fill_rectangle(&sl->mv_cache[0][scan8[i8 * 4]], 2, 2, 8,
634 pack16to32(mx, my), 4);
635 80798 fill_rectangle(&sl->mv_cache[1][scan8[i8 * 4]], 2, 2, 8,
636 80798 pack16to32(mx - mv_col[0], my - my_col), 4);
637 }
638 }
639 32266 return;
640 }
641
642 /* one-to-one mv scaling */
643
644
2/2
✓ Branch 0 taken 127730 times.
✓ Branch 1 taken 92523 times.
 220253 if (IS_16X16(*mb_type)) {
645 int ref, mv0, mv1;
646
647 127730 fill_rectangle(&sl->ref_cache[1][scan8[0]], 4, 4, 8, 0, 1);
648
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 127730 if (IS_INTRA(mb_type_col[0])) {
649 61083 ref = mv0 = mv1 = 0;
650 } else {
651 199890 const int ref0 = l1ref0[0] >= 0 ? map_col_to_list0[0][l1ref0[0] + ref_offset]
652
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 66647 : map_col_to_list0[1][l1ref1[0] + ref_offset];
653 66647 const int scale = dist_scale_factor[ref0];
654
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 66647 const int16_t *mv_col = l1ref0[0] >= 0 ? l1mv0[0] : l1mv1[0];
655 int mv_l0[2];
656 66647 mv_l0[0] = (scale * mv_col[0] + 128) >> 8;
657 66647 mv_l0[1] = (scale * mv_col[1] + 128) >> 8;
658 66647 ref = ref0;
659 66647 mv0 = pack16to32(mv_l0[0], mv_l0[1]);
660 66647 mv1 = pack16to32(mv_l0[0] - mv_col[0], mv_l0[1] - mv_col[1]);
661 }
662 127730 fill_rectangle(&sl->ref_cache[0][scan8[0]], 4, 4, 8, ref, 1);
663 127730 fill_rectangle(&sl->mv_cache[0][scan8[0]], 4, 4, 8, mv0, 4);
664 127730 fill_rectangle(&sl->mv_cache[1][scan8[0]], 4, 4, 8, mv1, 4);
665 } else {
666
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 462615 for (i8 = 0; i8 < 4; i8++) {
667 370092 const int x8 = i8 & 1;
668 370092 const int y8 = i8 >> 1;
669 int ref0, scale;
670 370092 const int16_t (*l1mv)[2] = l1mv0;
671
672
4/4
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✓ Branch 2 taken 92478 times.
✓ Branch 3 taken 71450 times.
 370092 if (is_b8x8 && !IS_DIRECT(sl->sub_mb_type[i8]))
673 92478 continue;
674 277614 sl->sub_mb_type[i8] = sub_mb_type;
675 277614 fill_rectangle(&sl->ref_cache[1][scan8[i8 * 4]], 2, 2, 8, 0, 1);
676
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 277614 if (IS_INTRA(mb_type_col[0])) {
677 22294 fill_rectangle(&sl->ref_cache[0][scan8[i8 * 4]], 2, 2, 8, 0, 1);
678 22294 fill_rectangle(&sl->mv_cache[0][scan8[i8 * 4]], 2, 2, 8, 0, 4);
679 22294 fill_rectangle(&sl->mv_cache[1][scan8[i8 * 4]], 2, 2, 8, 0, 4);
680 22294 continue;
681 }
682
683 assert(b8_stride == 2);
684 255320 ref0 = l1ref0[i8];
685
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 255320 if (ref0 >= 0)
686 255300 ref0 = map_col_to_list0[0][ref0 + ref_offset];
687 else {
688 20 ref0 = map_col_to_list0[1][l1ref1[i8] + ref_offset];
689 20 l1mv = l1mv1;
690 }
691 255320 scale = dist_scale_factor[ref0];
692
693 255320 fill_rectangle(&sl->ref_cache[0][scan8[i8 * 4]], 2, 2, 8,
694 ref0, 1);
695
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 255320 if (IS_SUB_8X8(sub_mb_type)) {
696 230012 const int16_t *mv_col = l1mv[x8 * 3 + y8 * 3 * b4_stride];
697 230012 int mx = (scale * mv_col[0] + 128) >> 8;
698 230012 int my = (scale * mv_col[1] + 128) >> 8;
699 230012 fill_rectangle(&sl->mv_cache[0][scan8[i8 * 4]], 2, 2, 8,
700 pack16to32(mx, my), 4);
701 230012 fill_rectangle(&sl->mv_cache[1][scan8[i8 * 4]], 2, 2, 8,
702 230012 pack16to32(mx - mv_col[0], my - mv_col[1]), 4);
703 } else {
704
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 126540 for (i4 = 0; i4 < 4; i4++) {
705 101232 const int16_t *mv_col = l1mv[x8 * 2 + (i4 & 1) +
706 101232 (y8 * 2 + (i4 >> 1)) * b4_stride];
707 101232 int16_t *mv_l0 = sl->mv_cache[0][scan8[i8 * 4 + i4]];
708 101232 mv_l0[0] = (scale * mv_col[0] + 128) >> 8;
709 101232 mv_l0[1] = (scale * mv_col[1] + 128) >> 8;
710 101232 AV_WN32A(sl->mv_cache[1][scan8[i8 * 4 + i4]],
711 pack16to32(mv_l0[0] - mv_col[0],
712 mv_l0[1] - mv_col[1]));
713 }
714 }
715 }
716 }
717 }
718 }
719
720 3250641 void ff_h264_pred_direct_motion(const H264Context *const h, H264SliceContext *sl,
721 int *mb_type)
722 {
723
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 3250641 if (sl->direct_spatial_mv_pred)
724 2998122 pred_spatial_direct_motion(h, sl, mb_type);
725 else
726 252519 pred_temp_direct_motion(h, sl, mb_type);
727 3250641 }
728