FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/h264_direct.c
Date: 2026-09-13 11:21:06
Exec Total Coverage
Lines: 443 450 98.4%
Functions: 8 8 100.0%
Branches: 306 326 93.9%
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 29078 static int get_scale_factor(const H264SliceContext *sl,
38 int poc, int poc1, int i)
39 {
40 29078 int poc0 = sl->ref_list[0][i].poc;
41 29078 int64_t pocdiff = poc1 - (int64_t)poc0;
42 29078 int td = av_clip_int8(pocdiff);
43
44
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 29078 if (pocdiff != (int)pocdiff)
45 ✗ avpriv_request_sample(sl->h264->avctx, "pocdiff overflow");
46
47
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 29078 if (td == 0 || sl->ref_list[0][i].parent->long_ref) {
48 8288 return 256;
49 } else {
50 20790 int64_t pocdiff0 = poc - (int64_t)poc0;
51 20790 int tb = av_clip_int8(pocdiff0);
52 20790 int tx = (16384 + (FFABS(td) >> 1)) / td;
53
54
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 20790 if (pocdiff0 != (int)pocdiff0)
55 ✗ av_log(sl->h264->avctx, AV_LOG_DEBUG, "pocdiff0 overflow\n");
56
57 20790 return av_clip_intp2((tb * tx + 32) >> 6, 10);
58 }
59 }
60
61 7959 void ff_h264_direct_dist_scale_factor(const H264Context *const h,
62 H264SliceContext *sl)
63 {
64 19530 const int poc = FIELD_PICTURE(h) ? h->cur_pic_ptr->field_poc[h->picture_structure == PICT_BOTTOM_FIELD]
65
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 7959 : h->cur_pic_ptr->poc;
66 7959 const int poc1 = sl->ref_list[1][0].poc;
67 int i, field;
68
69
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 7959 if (FRAME_MBAFF(h))
70
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 1566 for (field = 0; field < 2; field++) {
71 1044 const int poc = h->cur_pic_ptr->field_poc[field];
72 1044 const int poc1 = sl->ref_list[1][0].parent->field_poc[field];
73
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 7720 for (i = 0; i < 2 * sl->ref_count[0]; i++)
74 6676 sl->dist_scale_factor_field[field][i ^ field] =
75 6676 get_scale_factor(sl, poc, poc1, i + 16);
76 }
77
78
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 30361 for (i = 0; i < sl->ref_count[0]; i++)
79 22402 sl->dist_scale_factor[i] = get_scale_factor(sl, poc, poc1, i);
80 7959 }
81
82 18006 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 18006 const H264Picture *const ref1 = sl->ref_list[1][0].parent;
87 int j, old_ref, rfield;
88
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 18006 int start = mbafi ? 16 : 0;
89
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 18006 int end = mbafi ? 16 + 2 * sl->ref_count[0] : sl->ref_count[0];
90
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 18006 int interl = mbafi || h->picture_structure != PICT_FRAME;
91
92 /* bogus; fills in for missing frames */
93 18006 memset(map[list], 0, sizeof(map[list]));
94
95
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 54018 for (rfield = 0; rfield < 2; rfield++) {
96
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 75420 for (old_ref = 0; old_ref < ref1->ref_count[colfield][list]; old_ref++) {
97 39408 int poc = ref1->ref_poc[colfield][list][old_ref];
98
99
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 39408 if (!interl)
100 16960 poc |= 3;
101 // FIXME: store all MBAFF references so this is not needed
102
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 22448 else if (interl && (poc & 3) == 3)
103 5456 poc = (poc & ~3) + rfield + 1;
104
105
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 115502 for (j = start; j < end; j++) {
106 107980 if (4 * sl->ref_list[0][j].parent->frame_num +
107
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 107980 (sl->ref_list[0][j].reference & 3) == poc) {
108
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 31886 int cur_ref = mbafi ? (j - 16) ^ field : j;
109
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 31886 if (ref1->mbaff)
110 5826 map[list][2 * old_ref + (rfield ^ field) + 16] = cur_ref;
111
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 31886 if (rfield == field || !interl)
112 22590 map[list][old_ref] = cur_ref;
113 31886 break;
114 }
115 }
116 }
117 }
118 18006 }
119
120 38838 void ff_h264_direct_ref_list_init(const H264Context *const h, H264SliceContext *sl)
121 {
122 38838 H264Ref *const ref1 = &sl->ref_list[1][0];
123 38838 H264Picture *const cur = h->cur_pic_ptr;
124 int list, field;
125 38838 int sidx = (h->picture_structure & 1) ^ 1;
126 38838 int ref1sidx = (ref1->reference & 1) ^ 1;
127
128 /* Updates to cur_pic are not safe once ff_thread_finish_setup() has been
129 * called (other threads may already be reading these fields). */
130
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 38838 if (!h->setup_finished) {
131
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 86854 for (list = 0; list < sl->list_count; list++) {
132 48016 cur->ref_count[sidx][list] = sl->ref_count[list];
133
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 193689 for (int j = 0; j < sl->ref_count[list]; j++)
134 145673 cur->ref_poc[sidx][list][j] = 4 * sl->ref_list[list][j].parent->frame_num +
135 145673 (sl->ref_list[list][j].reference & 3);
136 }
137
138
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 38838 if (h->picture_structure == PICT_FRAME) {
139 29286 memcpy(cur->ref_count[1], cur->ref_count[0], sizeof(cur->ref_count[0]));
140 29286 memcpy(cur->ref_poc[1], cur->ref_poc[0], sizeof(cur->ref_poc[0]));
141 }
142
143
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 38838 if (h->current_slice == 0) {
144 29328 cur->mbaff = FRAME_MBAFF(h);
145 } else {
146
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 9510 av_assert0(cur->mbaff == FRAME_MBAFF(h));
147 }
148 }
149
150 38838 sl->col_fieldoff = 0;
151
152
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 38838 if (sl->list_count != 2 || !sl->ref_count[1])
153 25034 return;
154
155
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 13804 if (h->picture_structure == PICT_FRAME) {
156 8585 int cur_poc = h->cur_pic_ptr->poc;
157 8585 const int *col_poc = sl->ref_list[1][0].parent->field_poc;
158
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 8585 if (col_poc[0] == INT_MAX && col_poc[1] == INT_MAX) {
159 12 av_log(h->avctx, AV_LOG_ERROR, "co located POCs unavailable\n");
160 12 sl->col_parity = 1;
161 } else
162 8573 sl->col_parity = (FFABS(col_poc[0] - (int64_t)cur_poc) >=
163 8573 FFABS(col_poc[1] - (int64_t)cur_poc));
164 8585 ref1sidx =
165 8585 sidx = sl->col_parity;
166 // FL -> FL & differ parity
167
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 5219 } else if (!(h->picture_structure & sl->ref_list[1][0].reference) &&
168
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 1866 !sl->ref_list[1][0].parent->mbaff) {
169 1728 sl->col_fieldoff = 2 * sl->ref_list[1][0].reference - 3;
170 }
171
172
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 13804 if (sl->slice_type_nos != AV_PICTURE_TYPE_B || sl->direct_spatial_mv_pred)
173 5845 return;
174
175
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 23877 for (list = 0; list < 2; list++) {
176 15918 fill_colmap(h, sl, sl->map_col_to_list0, list, sidx, ref1sidx, 0);
177
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 15918 if (FRAME_MBAFF(h))
178
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 3132 for (field = 0; field < 2; field++)
179 2088 fill_colmap(h, sl, sl->map_col_to_list0_field[field], list, field,
180 field, 1);
181 }
182 }
183
184 4698061 static void await_reference_mb_row(const H264Context *const h, H264Ref *ref,
185 int mb_y)
186 {
187
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 4698061 if (!HAVE_THREADS || !(h->avctx->active_thread_type & FF_THREAD_FRAME))
188 4669178 return;
189
190 28883 int ref_field = ref->reference - 1;
191 28883 int ref_field_picture = ref->parent->field_picture;
192 28883 int ref_height = 16 * h->mb_height >> ref_field_picture;
193
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 28883 int row = FFMIN(16 * mb_y >> ref_field_picture, ref_height - 1);
194
195 /* FIXME: It can be safe to access mb stuff
196 * even if pixels aren't deblocked yet. */
197
198
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 28883 ff_thread_await_progress(&ref->parent->tf, row,
199 ref_field_picture && ref_field);
200
201 /* A frame references a field pair as a whole, so the wait above covers
202 * its bottom field only, while the colocated data is read from the field
203 * selected by col_parity. The two are decoded by different threads. */
204
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 28883 if (ref_field_picture && !FIELD_PICTURE(h))
205 ✗ ff_thread_await_progress(&ref->parent->tf, row, 0);
206 }
207
208 3090333 static void pred_spatial_direct_motion(const H264Context *const h, H264SliceContext *sl,
209 int *mb_type)
210 {
211 3090333 int b8_stride = 2;
212 3090333 int b4_stride = h->b_stride;
213 3090333 int mb_xy = sl->mb_xy, mb_y = sl->mb_y;
214 int mb_type_col[2];
215 const int16_t (*l1mv0)[2], (*l1mv1)[2];
216 const int8_t *l1ref0, *l1ref1;
217 3090333 const int is_b8x8 = IS_8X8(*mb_type);
218 3090333 unsigned int sub_mb_type = MB_TYPE_L0L1;
219 int i8, i4;
220 int ref[2];
221 int mv[2];
222 int list;
223
224 assert(sl->ref_list[1][0].reference & 3);
225
226 3090333 await_reference_mb_row(h, &sl->ref_list[1][0],
227 3090333 sl->mb_y + !!IS_INTERLACED(*mb_type));
228
229 #define MB_TYPE_16x16_OR_INTRA (MB_TYPE_16x16 | MB_TYPE_INTRA4x4 | \
230 MB_TYPE_INTRA16x16 | MB_TYPE_INTRA_PCM)
231
232 /* ref = min(neighbors) */
233
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 9270999 for (list = 0; list < 2; list++) {
234 6180666 int left_ref = sl->ref_cache[list][scan8[0] - 1];
235 6180666 int top_ref = sl->ref_cache[list][scan8[0] - 8];
236 6180666 int refc = sl->ref_cache[list][scan8[0] - 8 + 4];
237 6180666 const int16_t *C = sl->mv_cache[list][scan8[0] - 8 + 4];
238
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 6180666 if (refc == PART_NOT_AVAILABLE) {
239 758222 refc = sl->ref_cache[list][scan8[0] - 8 - 1];
240 758222 C = sl->mv_cache[list][scan8[0] - 8 - 1];
241 }
242 6180666 ref[list] = FFMIN3((unsigned)left_ref,
243 (unsigned)top_ref,
244 (unsigned)refc);
245
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 6180666 if (ref[list] >= 0) {
246 /* This is just pred_motion() but with the cases removed that
247 * cannot happen for direct blocks. */
248 5671471 const int16_t *const A = sl->mv_cache[list][scan8[0] - 1];
249 5671471 const int16_t *const B = sl->mv_cache[list][scan8[0] - 8];
250
251 5671471 int match_count = (left_ref == ref[list]) +
252 5671471 (top_ref == ref[list]) +
253 5671471 (refc == ref[list]);
254
255
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 5671471 if (match_count > 1) { // most common
256 5034388 mv[list] = pack16to32(mid_pred(A[0], B[0], C[0]),
257 5034388 mid_pred(A[1], B[1], C[1]));
258 } else {
259 assert(match_count == 1);
260
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 637083 if (left_ref == ref[list])
261 501203 mv[list] = AV_RN32A(A);
262
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 135880 else if (top_ref == ref[list])
263 63751 mv[list] = AV_RN32A(B);
264 else
265 72129 mv[list] = AV_RN32A(C);
266 }
267 av_assert2(ref[list] < (sl->ref_count[list] << !!FRAME_MBAFF(h)));
268 } else {
269 509195 int mask = ~(MB_TYPE_L0 << (2 * list));
270 509195 mv[list] = 0;
271 509195 ref[list] = -1;
272
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 509195 if (!is_b8x8)
273 483123 *mb_type &= mask;
274 509195 sub_mb_type &= mask;
275 }
276 }
277
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 3090333 if (ref[0] < 0 && ref[1] < 0) {
278 6995 ref[0] = ref[1] = 0;
279
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 6995 if (!is_b8x8)
280 6102 *mb_type |= MB_TYPE_L0L1;
281 6995 sub_mb_type |= MB_TYPE_L0L1;
282 }
283
284
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 3090333 if (!(is_b8x8 | mv[0] | mv[1])) {
285 1987741 fill_rectangle(&sl->ref_cache[0][scan8[0]], 4, 4, 8, (uint8_t)ref[0], 1);
286 1987741 fill_rectangle(&sl->ref_cache[1][scan8[0]], 4, 4, 8, (uint8_t)ref[1], 1);
287 1987741 fill_rectangle(&sl->mv_cache[0][scan8[0]], 4, 4, 8, 0, 4);
288 1987741 fill_rectangle(&sl->mv_cache[1][scan8[0]], 4, 4, 8, 0, 4);
289 1987741 *mb_type = (*mb_type & ~(MB_TYPE_8x8 | MB_TYPE_16x8 | MB_TYPE_8x16 |
290 MB_TYPE_P1L0 | MB_TYPE_P1L1)) |
291 1987741 MB_TYPE_16x16 | MB_TYPE_DIRECT2;
292 1987741 return;
293 }
294
295
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 1102592 if (sl->ref_list[1][0].parent->field_picture ||
296
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 444780 IS_INTERLACED(sl->ref_list[1][0].parent->mb_type[mb_xy])) { // AFL/AFR/FR/FL -> AFL/FL
297
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 725700 if (!IS_INTERLACED(*mb_type)) { // AFR/FR -> AFL/FL
298 43571 mb_y = (sl->mb_y & ~1) + sl->col_parity;
299 43571 mb_xy = sl->mb_x +
300 43571 ((sl->mb_y & ~1) + sl->col_parity) * h->mb_stride;
301 43571 b8_stride = 0;
302 } else {
303 682129 mb_y += sl->col_fieldoff;
304 682129 mb_xy += h->mb_stride * sl->col_fieldoff; // non-zero for FL -> FL & differ parity
305 }
306 725700 goto single_col;
307 } else { // AFL/AFR/FR/FL -> AFR/FR
308
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 376892 if (IS_INTERLACED(*mb_type)) { // AFL /FL -> AFR/FR
309 51346 mb_y = sl->mb_y & ~1;
310 51346 mb_xy = (sl->mb_y & ~1) * h->mb_stride + sl->mb_x;
311 51346 mb_type_col[0] = sl->ref_list[1][0].parent->mb_type[mb_xy];
312 51346 mb_type_col[1] = sl->ref_list[1][0].parent->mb_type[mb_xy + h->mb_stride];
313 51346 b8_stride = 2 + 4 * h->mb_stride;
314 51346 b4_stride *= 6;
315 51346 if (IS_INTERLACED(mb_type_col[0]) !=
316
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 51346 IS_INTERLACED(mb_type_col[1])) {
317 ✗ mb_type_col[0] &= ~MB_TYPE_INTERLACED;
318 ✗ mb_type_col[1] &= ~MB_TYPE_INTERLACED;
319 }
320
321 51346 sub_mb_type |= MB_TYPE_16x16 | MB_TYPE_DIRECT2; /* B_SUB_8x8 */
322
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 51346 if ((mb_type_col[0] & MB_TYPE_16x16_OR_INTRA) &&
323
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 40827 (mb_type_col[1] & MB_TYPE_16x16_OR_INTRA) &&
324 !is_b8x8) {
325 32330 *mb_type |= MB_TYPE_16x8 | MB_TYPE_DIRECT2; /* B_16x8 */
326 } else {
327 19016 *mb_type |= MB_TYPE_8x8;
328 }
329 } else { // AFR/FR -> AFR/FR
330 325546 single_col:
331 1051246 mb_type_col[0] =
332 1051246 mb_type_col[1] = sl->ref_list[1][0].parent->mb_type[mb_xy];
333
334 1051246 sub_mb_type |= MB_TYPE_16x16 | MB_TYPE_DIRECT2; /* B_SUB_8x8 */
335
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 1051246 if (!is_b8x8 && (mb_type_col[0] & MB_TYPE_16x16_OR_INTRA)) {
336 870114 *mb_type |= MB_TYPE_16x16 | MB_TYPE_DIRECT2; /* B_16x16 */
337
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 181132 } else if (!is_b8x8 &&
338
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 105587 (mb_type_col[0] & (MB_TYPE_16x8 | MB_TYPE_8x16))) {
339 59412 *mb_type |= MB_TYPE_DIRECT2 |
340 59412 (mb_type_col[0] & (MB_TYPE_16x8 | MB_TYPE_8x16));
341 } else {
342
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 121720 if (!h->ps.sps->direct_8x8_inference_flag) {
343 /* FIXME: Save sub mb types from previous frames (or derive
344 * from MVs) so we know exactly what block size to use. */
345 21562 sub_mb_type += (MB_TYPE_8x8 - MB_TYPE_16x16); /* B_SUB_4x4 */
346 }
347 121720 *mb_type |= MB_TYPE_8x8;
348 }
349 }
350 }
351
352 1102592 await_reference_mb_row(h, &sl->ref_list[1][0], mb_y);
353
354 1102592 l1mv0 = (void*)&sl->ref_list[1][0].parent->motion_val[0][h->mb2b_xy[mb_xy]];
355 1102592 l1mv1 = (void*)&sl->ref_list[1][0].parent->motion_val[1][h->mb2b_xy[mb_xy]];
356 1102592 l1ref0 = &sl->ref_list[1][0].parent->ref_index[0][4 * mb_xy];
357 1102592 l1ref1 = &sl->ref_list[1][0].parent->ref_index[1][4 * mb_xy];
358
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 1102592 if (!b8_stride) {
359
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 43571 if (sl->mb_y & 1) {
360 22047 l1ref0 += 2;
361 22047 l1ref1 += 2;
362 22047 l1mv0 += 2 * b4_stride;
363 22047 l1mv1 += 2 * b4_stride;
364 }
365 }
366
367
2/2
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 1102592 if (IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col[0])) {
368 94917 int n = 0;
369
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 474585 for (i8 = 0; i8 < 4; i8++) {
370 379668 int x8 = i8 & 1;
371 379668 int y8 = i8 >> 1;
372 379668 int xy8 = x8 + y8 * b8_stride;
373 379668 int xy4 = x8 * 3 + y8 * b4_stride;
374 int a, b;
375
376
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✓ Branch 2 taken 27121 times.
✓ Branch 3 taken 39695 times.
 379668 if (is_b8x8 && !IS_DIRECT(sl->sub_mb_type[i8]))
377 27121 continue;
378 352547 sl->sub_mb_type[i8] = sub_mb_type;
379
380 352547 fill_rectangle(&sl->ref_cache[0][scan8[i8 * 4]], 2, 2, 8,
381 352547 (uint8_t)ref[0], 1);
382 352547 fill_rectangle(&sl->ref_cache[1][scan8[i8 * 4]], 2, 2, 8,
383 352547 (uint8_t)ref[1], 1);
384
3/4
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✓ Branch 2 taken 197262 times.
✗ Branch 3 not taken.
 352547 if (!IS_INTRA(mb_type_col[y8]) && !sl->ref_list[1][0].parent->long_ref &&
385
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 197262 ((l1ref0[xy8] == 0 &&
386
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✓ Branch 1 taken 124020 times.
 134513 FFABS(l1mv0[xy4][0]) <= 1 &&
387
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✓ Branch 1 taken 6033 times.
 10493 FFABS(l1mv0[xy4][1]) <= 1) ||
388
2/2
✓ Branch 0 taken 12234 times.
✓ Branch 1 taken 178995 times.
 191229 (l1ref0[xy8] < 0 &&
389
2/2
✓ Branch 0 taken 9667 times.
✓ Branch 1 taken 2567 times.
 12234 l1ref1[xy8] == 0 &&
390
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✓ Branch 1 taken 8841 times.
 9667 FFABS(l1mv1[xy4][0]) <= 1 &&
391
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✓ Branch 1 taken 324 times.
 826 FFABS(l1mv1[xy4][1]) <= 1))) {
392 6535 a =
393 6535 b = 0;
394
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✓ Branch 1 taken 6020 times.
 6535 if (ref[0] > 0)
395 515 a = mv[0];
396
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✓ Branch 1 taken 6376 times.
 6535 if (ref[1] > 0)
397 159 b = mv[1];
398 6535 n++;
399 } else {
400 346012 a = mv[0];
401 346012 b = mv[1];
402 }
403 352547 fill_rectangle(&sl->mv_cache[0][scan8[i8 * 4]], 2, 2, 8, a, 4);
404 352547 fill_rectangle(&sl->mv_cache[1][scan8[i8 * 4]], 2, 2, 8, b, 4);
405 }
406
4/4
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✓ Branch 2 taken 77034 times.
✓ Branch 3 taken 1179 times.
 94917 if (!is_b8x8 && !(n & 3))
407 77034 *mb_type = (*mb_type & ~(MB_TYPE_8x8 | MB_TYPE_16x8 | MB_TYPE_8x16 |
408 MB_TYPE_P1L0 | MB_TYPE_P1L1)) |
409 77034 MB_TYPE_16x16 | MB_TYPE_DIRECT2;
410
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✓ Branch 1 taken 166475 times.
 1007675 } else if (IS_16X16(*mb_type)) {
411 int a, b;
412
413 841200 fill_rectangle(&sl->ref_cache[0][scan8[0]], 4, 4, 8, (uint8_t)ref[0], 1);
414 841200 fill_rectangle(&sl->ref_cache[1][scan8[0]], 4, 4, 8, (uint8_t)ref[1], 1);
415
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✓ Branch 2 taken 627216 times.
✓ Branch 3 taken 11 times.
 841200 if (!IS_INTRA(mb_type_col[0]) && !sl->ref_list[1][0].parent->long_ref &&
416
2/2
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✓ Branch 1 taken 274586 times.
 627216 ((l1ref0[0] == 0 &&
417
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✓ Branch 1 taken 283747 times.
 352630 FFABS(l1mv0[0][0]) <= 1 &&
418
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✓ Branch 1 taken 30737 times.
 68883 FFABS(l1mv0[0][1]) <= 1) ||
419
4/4
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✓ Branch 1 taken 578206 times.
✓ Branch 2 taken 17508 times.
✓ Branch 3 taken 765 times.
 596479 (l1ref0[0] < 0 && !l1ref1[0] &&
420
2/2
✓ Branch 0 taken 4824 times.
✓ Branch 1 taken 12684 times.
 17508 FFABS(l1mv1[0][0]) <= 1 &&
421
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✓ Branch 0 taken 3957 times.
✓ Branch 1 taken 867 times.
 4824 FFABS(l1mv1[0][1]) <= 1 &&
422
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 3957 h->x264_build > 33U))) {
423 34694 a = b = 0;
424
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 34694 if (ref[0] > 0)
425 7079 a = mv[0];
426
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✓ Branch 1 taken 29959 times.
 34694 if (ref[1] > 0)
427 4735 b = mv[1];
428 } else {
429 806506 a = mv[0];
430 806506 b = mv[1];
431 }
432 841200 fill_rectangle(&sl->mv_cache[0][scan8[0]], 4, 4, 8, a, 4);
433 841200 fill_rectangle(&sl->mv_cache[1][scan8[0]], 4, 4, 8, b, 4);
434 } else {
435 166475 int n = 0;
436
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 832375 for (i8 = 0; i8 < 4; i8++) {
437 665900 const int x8 = i8 & 1;
438 665900 const int y8 = i8 >> 1;
439
440
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✓ Branch 2 taken 124087 times.
✓ Branch 3 taken 147805 times.
 665900 if (is_b8x8 && !IS_DIRECT(sl->sub_mb_type[i8]))
441 124087 continue;
442 541813 sl->sub_mb_type[i8] = sub_mb_type;
443
444 541813 fill_rectangle(&sl->mv_cache[0][scan8[i8 * 4]], 2, 2, 8, mv[0], 4);
445 541813 fill_rectangle(&sl->mv_cache[1][scan8[i8 * 4]], 2, 2, 8, mv[1], 4);
446 541813 fill_rectangle(&sl->ref_cache[0][scan8[i8 * 4]], 2, 2, 8,
447 541813 (uint8_t)ref[0], 1);
448 541813 fill_rectangle(&sl->ref_cache[1][scan8[i8 * 4]], 2, 2, 8,
449 541813 (uint8_t)ref[1], 1);
450
451 assert(b8_stride == 2);
452 /* col_zero_flag */
453
4/4
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✓ Branch 2 taken 501819 times.
✓ Branch 3 taken 132 times.
 541813 if (!IS_INTRA(mb_type_col[0]) && !sl->ref_list[1][0].parent->long_ref &&
454
2/2
✓ Branch 0 taken 170912 times.
✓ Branch 1 taken 330907 times.
 501819 (l1ref0[i8] == 0 ||
455
2/2
✓ Branch 0 taken 12407 times.
✓ Branch 1 taken 158505 times.
 170912 (l1ref0[i8] < 0 &&
456
2/2
✓ Branch 0 taken 11289 times.
✓ Branch 1 taken 1118 times.
 12407 l1ref1[i8] == 0 &&
457
1/2
✓ Branch 0 taken 11289 times.
✗ Branch 1 not taken.
 11289 h->x264_build > 33U))) {
458
2/2
✓ Branch 0 taken 330907 times.
✓ Branch 1 taken 11289 times.
 342196 const int16_t (*l1mv)[2] = l1ref0[i8] == 0 ? l1mv0 : l1mv1;
459
2/2
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✓ Branch 1 taken 30303 times.
 342196 if (IS_SUB_8X8(sub_mb_type)) {
460 311893 const int16_t *mv_col = l1mv[x8 * 3 + y8 * 3 * b4_stride];
461
4/4
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✓ Branch 1 taken 261252 times.
✓ Branch 2 taken 27047 times.
✓ Branch 3 taken 23594 times.
 311893 if (FFABS(mv_col[0]) <= 1 && FFABS(mv_col[1]) <= 1) {
462
2/2
✓ Branch 0 taken 23080 times.
✓ Branch 1 taken 3967 times.
 27047 if (ref[0] == 0)
463 23080 fill_rectangle(&sl->mv_cache[0][scan8[i8 * 4]], 2, 2,
464 8, 0, 4);
465
2/2
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✓ Branch 1 taken 2325 times.
 27047 if (ref[1] == 0)
466 24722 fill_rectangle(&sl->mv_cache[1][scan8[i8 * 4]], 2, 2,
467 8, 0, 4);
468 27047 n += 4;
469 }
470 } else {
471 30303 int m = 0;
472
2/2
✓ Branch 0 taken 121212 times.
✓ Branch 1 taken 30303 times.
 151515 for (i4 = 0; i4 < 4; i4++) {
473 121212 const int16_t *mv_col = l1mv[x8 * 2 + (i4 & 1) +
474 121212 (y8 * 2 + (i4 >> 1)) * b4_stride];
475
4/4
✓ Branch 0 taken 8548 times.
✓ 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) {
476
2/2
✓ Branch 0 taken 2071 times.
✓ Branch 1 taken 965 times.
 3036 if (ref[0] == 0)
477 2071 AV_ZERO32(sl->mv_cache[0][scan8[i8 * 4 + i4]]);
478
2/2
✓ Branch 0 taken 2790 times.
✓ Branch 1 taken 246 times.
 3036 if (ref[1] == 0)
479 2790 AV_ZERO32(sl->mv_cache[1][scan8[i8 * 4 + i4]]);
480 3036 m++;
481 }
482 }
483
2/2
✓ Branch 0 taken 29990 times.
✓ Branch 1 taken 313 times.
 30303 if (!(m & 3))
484 29990 sl->sub_mb_type[i8] += MB_TYPE_16x16 - MB_TYPE_8x8;
485 30303 n += m;
486 }
487 }
488 }
489
4/4
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✓ Branch 1 taken 67973 times.
✓ Branch 2 taken 89537 times.
✓ Branch 3 taken 8965 times.
 166475 if (!is_b8x8 && !(n & 15))
490 89537 *mb_type = (*mb_type & ~(MB_TYPE_8x8 | MB_TYPE_16x8 | MB_TYPE_8x16 |
491 MB_TYPE_P1L0 | MB_TYPE_P1L1)) |
492 89537 MB_TYPE_16x16 | MB_TYPE_DIRECT2;
493 }
494 }
495
496 252568 static void pred_temp_direct_motion(const H264Context *const h, H264SliceContext *sl,
497 int *mb_type)
498 {
499 252568 int b8_stride = 2;
500 252568 int b4_stride = h->b_stride;
501 252568 int mb_xy = sl->mb_xy, mb_y = sl->mb_y;
502 int mb_type_col[2];
503 const int16_t (*l1mv0)[2], (*l1mv1)[2];
504 const int8_t *l1ref0, *l1ref1;
505 252568 const int is_b8x8 = IS_8X8(*mb_type);
506 unsigned int sub_mb_type;
507 int i8, i4;
508
509 assert(sl->ref_list[1][0].reference & 3);
510
511 252568 await_reference_mb_row(h, &sl->ref_list[1][0],
512 252568 sl->mb_y + !!IS_INTERLACED(*mb_type));
513
514
2/2
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✓ Branch 1 taken 69636 times.
 252568 if (sl->ref_list[1][0].parent->field_picture ||
515
2/2
✓ Branch 0 taken 19848 times.
✓ Branch 1 taken 163084 times.
 182932 IS_INTERLACED(sl->ref_list[1][0].parent->mb_type[mb_xy])) { // AFL/AFR/FR/FL -> AFL/FL
516
2/2
✓ Branch 0 taken 15720 times.
✓ Branch 1 taken 73764 times.
 89484 if (!IS_INTERLACED(*mb_type)) { // AFR/FR -> AFL/FL
517 15720 mb_y = (sl->mb_y & ~1) + sl->col_parity;
518 15720 mb_xy = sl->mb_x +
519 15720 ((sl->mb_y & ~1) + sl->col_parity) * h->mb_stride;
520 15720 b8_stride = 0;
521 } else {
522 73764 mb_y += sl->col_fieldoff;
523 73764 mb_xy += h->mb_stride * sl->col_fieldoff; // non-zero for FL -> FL & differ parity
524 }
525 89484 goto single_col;
526 } else { // AFL/AFR/FR/FL -> AFR/FR
527
2/2
✓ Branch 0 taken 16565 times.
✓ Branch 1 taken 146519 times.
 163084 if (IS_INTERLACED(*mb_type)) { // AFL /FL -> AFR/FR
528 16565 mb_y = sl->mb_y & ~1;
529 16565 mb_xy = sl->mb_x + (sl->mb_y & ~1) * h->mb_stride;
530 16565 mb_type_col[0] = sl->ref_list[1][0].parent->mb_type[mb_xy];
531 16565 mb_type_col[1] = sl->ref_list[1][0].parent->mb_type[mb_xy + h->mb_stride];
532 16565 b8_stride = 2 + 4 * h->mb_stride;
533 16565 b4_stride *= 6;
534 16565 if (IS_INTERLACED(mb_type_col[0]) !=
535
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 16565 times.
 16565 IS_INTERLACED(mb_type_col[1])) {
536 ✗ mb_type_col[0] &= ~MB_TYPE_INTERLACED;
537 ✗ mb_type_col[1] &= ~MB_TYPE_INTERLACED;
538 }
539
540 16565 sub_mb_type = MB_TYPE_16x16 | MB_TYPE_P0L0 | MB_TYPE_P0L1 |
541 MB_TYPE_DIRECT2; /* B_SUB_8x8 */
542
543
2/2
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✓ Branch 1 taken 6662 times.
 16565 if ((mb_type_col[0] & MB_TYPE_16x16_OR_INTRA) &&
544
4/4
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✓ Branch 1 taken 2678 times.
✓ Branch 2 taken 5889 times.
✓ Branch 3 taken 1336 times.
 9903 (mb_type_col[1] & MB_TYPE_16x16_OR_INTRA) &&
545 !is_b8x8) {
546 5889 *mb_type |= MB_TYPE_16x8 | MB_TYPE_L0L1 |
547 MB_TYPE_DIRECT2; /* B_16x8 */
548 } else {
549 10676 *mb_type |= MB_TYPE_8x8 | MB_TYPE_L0L1;
550 }
551 } else { // AFR/FR -> AFR/FR
552 146519 single_col:
553 236003 mb_type_col[0] =
554 236003 mb_type_col[1] = sl->ref_list[1][0].parent->mb_type[mb_xy];
555
556 236003 sub_mb_type = MB_TYPE_16x16 | MB_TYPE_P0L0 | MB_TYPE_P0L1 |
557 MB_TYPE_DIRECT2; /* B_SUB_8x8 */
558
4/4
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✓ Branch 2 taken 135424 times.
✓ Branch 3 taken 54999 times.
 236003 if (!is_b8x8 && (mb_type_col[0] & MB_TYPE_16x16_OR_INTRA)) {
559 135424 *mb_type |= MB_TYPE_16x16 | MB_TYPE_P0L0 | MB_TYPE_P0L1 |
560 MB_TYPE_DIRECT2; /* B_16x16 */
561
2/2
✓ Branch 0 taken 54999 times.
✓ Branch 1 taken 45580 times.
 100579 } else if (!is_b8x8 &&
562
2/2
✓ Branch 0 taken 35141 times.
✓ Branch 1 taken 19858 times.
 54999 (mb_type_col[0] & (MB_TYPE_16x8 | MB_TYPE_8x16))) {
563 35141 *mb_type |= MB_TYPE_L0L1 | MB_TYPE_DIRECT2 |
564 35141 (mb_type_col[0] & (MB_TYPE_16x8 | MB_TYPE_8x16));
565 } else {
566
2/2
✓ Branch 0 taken 10593 times.
✓ Branch 1 taken 54845 times.
 65438 if (!h->ps.sps->direct_8x8_inference_flag) {
567 /* FIXME: save sub mb types from previous frames (or derive
568 * from MVs) so we know exactly what block size to use */
569 10593 sub_mb_type = MB_TYPE_8x8 | MB_TYPE_P0L0 | MB_TYPE_P0L1 |
570 MB_TYPE_DIRECT2; /* B_SUB_4x4 */
571 }
572 65438 *mb_type |= MB_TYPE_8x8 | MB_TYPE_L0L1;
573 }
574 }
575 }
576
577 252568 await_reference_mb_row(h, &sl->ref_list[1][0], mb_y);
578
579 252568 l1mv0 = (void*)&sl->ref_list[1][0].parent->motion_val[0][h->mb2b_xy[mb_xy]];
580 252568 l1mv1 = (void*)&sl->ref_list[1][0].parent->motion_val[1][h->mb2b_xy[mb_xy]];
581 252568 l1ref0 = &sl->ref_list[1][0].parent->ref_index[0][4 * mb_xy];
582 252568 l1ref1 = &sl->ref_list[1][0].parent->ref_index[1][4 * mb_xy];
583
2/2
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 252568 if (!b8_stride) {
584
2/2
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✓ Branch 1 taken 7953 times.
 15720 if (sl->mb_y & 1) {
585 7767 l1ref0 += 2;
586 7767 l1ref1 += 2;
587 7767 l1mv0 += 2 * b4_stride;
588 7767 l1mv1 += 2 * b4_stride;
589 }
590 }
591
592 {
593 252568 const int *map_col_to_list0[2] = { sl->map_col_to_list0[0],
594 252568 sl->map_col_to_list0[1] };
595 252568 const int *dist_scale_factor = sl->dist_scale_factor;
596 int ref_offset;
597
598
4/4
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✓ Branch 3 taken 22319 times.
 252568 if (FRAME_MBAFF(h) && IS_INTERLACED(*mb_type)) {
599 20468 map_col_to_list0[0] = sl->map_col_to_list0_field[sl->mb_y & 1][0];
600 20468 map_col_to_list0[1] = sl->map_col_to_list0_field[sl->mb_y & 1][1];
601 20468 dist_scale_factor = sl->dist_scale_factor_field[sl->mb_y & 1];
602 }
603 252568 ref_offset = (sl->ref_list[1][0].parent->mbaff << 4) & (mb_type_col[0] >> 3);
604
605
2/2
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 252568 if (IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col[0])) {
606
2/2
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✓ Branch 1 taken 16565 times.
 32285 int y_shift = 2 * !IS_INTERLACED(*mb_type);
607 assert(h->ps.sps->direct_8x8_inference_flag);
608
609
2/2
✓ Branch 0 taken 129140 times.
✓ Branch 1 taken 32285 times.
 161425 for (i8 = 0; i8 < 4; i8++) {
610 129140 const int x8 = i8 & 1;
611 129140 const int y8 = i8 >> 1;
612 int ref0, scale;
613 129140 const int16_t (*l1mv)[2] = l1mv0;
614
615
4/4
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✓ Branch 2 taken 22674 times.
✓ Branch 3 taken 20586 times.
 129140 if (is_b8x8 && !IS_DIRECT(sl->sub_mb_type[i8]))
616 22674 continue;
617 106466 sl->sub_mb_type[i8] = sub_mb_type;
618
619 106466 fill_rectangle(&sl->ref_cache[1][scan8[i8 * 4]], 2, 2, 8, 0, 1);
620
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✓ Branch 1 taken 80836 times.
 106466 if (IS_INTRA(mb_type_col[y8])) {
621 25630 fill_rectangle(&sl->ref_cache[0][scan8[i8 * 4]], 2, 2, 8, 0, 1);
622 25630 fill_rectangle(&sl->mv_cache[0][scan8[i8 * 4]], 2, 2, 8, 0, 4);
623 25630 fill_rectangle(&sl->mv_cache[1][scan8[i8 * 4]], 2, 2, 8, 0, 4);
624 25630 continue;
625 }
626
627 80836 ref0 = l1ref0[x8 + y8 * b8_stride];
628
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✓ Branch 1 taken 193 times.
 80836 if (ref0 >= 0)
629 80643 ref0 = map_col_to_list0[0][ref0 + ref_offset];
630 else {
631 193 ref0 = map_col_to_list0[1][l1ref1[x8 + y8 * b8_stride] +
632 ref_offset];
633 193 l1mv = l1mv1;
634 }
635 80836 scale = dist_scale_factor[ref0];
636 80836 fill_rectangle(&sl->ref_cache[0][scan8[i8 * 4]], 2, 2, 8,
637 ref0, 1);
638
639 {
640 80836 const int16_t *mv_col = l1mv[x8 * 3 + y8 * b4_stride];
641 80836 int my_col = (mv_col[1] * (1 << y_shift)) / 2;
642 80836 int mx = (scale * mv_col[0] + 128) >> 8;
643 80836 int my = (scale * my_col + 128) >> 8;
644 80836 fill_rectangle(&sl->mv_cache[0][scan8[i8 * 4]], 2, 2, 8,
645 pack16to32(mx, my), 4);
646 80836 fill_rectangle(&sl->mv_cache[1][scan8[i8 * 4]], 2, 2, 8,
647 80836 pack16to32(mx - mv_col[0], my - my_col), 4);
648 }
649 }
650 32285 return;
651 }
652
653 /* one-to-one mv scaling */
654
655
2/2
✓ Branch 0 taken 127760 times.
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 220283 if (IS_16X16(*mb_type)) {
656 int ref, mv0, mv1;
657
658 127760 fill_rectangle(&sl->ref_cache[1][scan8[0]], 4, 4, 8, 0, 1);
659
2/2
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✓ Branch 1 taken 66670 times.
 127760 if (IS_INTRA(mb_type_col[0])) {
660 61090 ref = mv0 = mv1 = 0;
661 } else {
662 199959 const int ref0 = l1ref0[0] >= 0 ? map_col_to_list0[0][l1ref0[0] + ref_offset]
663
2/2
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✓ Branch 1 taken 51 times.
 66670 : map_col_to_list0[1][l1ref1[0] + ref_offset];
664 66670 const int scale = dist_scale_factor[ref0];
665
2/2
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✓ Branch 1 taken 51 times.
 66670 const int16_t *mv_col = l1ref0[0] >= 0 ? l1mv0[0] : l1mv1[0];
666 int mv_l0[2];
667 66670 mv_l0[0] = (scale * mv_col[0] + 128) >> 8;
668 66670 mv_l0[1] = (scale * mv_col[1] + 128) >> 8;
669 66670 ref = ref0;
670 66670 mv0 = pack16to32(mv_l0[0], mv_l0[1]);
671 66670 mv1 = pack16to32(mv_l0[0] - mv_col[0], mv_l0[1] - mv_col[1]);
672 }
673 127760 fill_rectangle(&sl->ref_cache[0][scan8[0]], 4, 4, 8, ref, 1);
674 127760 fill_rectangle(&sl->mv_cache[0][scan8[0]], 4, 4, 8, mv0, 4);
675 127760 fill_rectangle(&sl->mv_cache[1][scan8[0]], 4, 4, 8, mv1, 4);
676 } else {
677
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 462615 for (i8 = 0; i8 < 4; i8++) {
678 370092 const int x8 = i8 & 1;
679 370092 const int y8 = i8 >> 1;
680 int ref0, scale;
681 370092 const int16_t (*l1mv)[2] = l1mv0;
682
683
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 370092 if (is_b8x8 && !IS_DIRECT(sl->sub_mb_type[i8]))
684 92478 continue;
685 277614 sl->sub_mb_type[i8] = sub_mb_type;
686 277614 fill_rectangle(&sl->ref_cache[1][scan8[i8 * 4]], 2, 2, 8, 0, 1);
687
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 277614 if (IS_INTRA(mb_type_col[0])) {
688 22294 fill_rectangle(&sl->ref_cache[0][scan8[i8 * 4]], 2, 2, 8, 0, 1);
689 22294 fill_rectangle(&sl->mv_cache[0][scan8[i8 * 4]], 2, 2, 8, 0, 4);
690 22294 fill_rectangle(&sl->mv_cache[1][scan8[i8 * 4]], 2, 2, 8, 0, 4);
691 22294 continue;
692 }
693
694 assert(b8_stride == 2);
695 255320 ref0 = l1ref0[i8];
696
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 255320 if (ref0 >= 0)
697 255300 ref0 = map_col_to_list0[0][ref0 + ref_offset];
698 else {
699 20 ref0 = map_col_to_list0[1][l1ref1[i8] + ref_offset];
700 20 l1mv = l1mv1;
701 }
702 255320 scale = dist_scale_factor[ref0];
703
704 255320 fill_rectangle(&sl->ref_cache[0][scan8[i8 * 4]], 2, 2, 8,
705 ref0, 1);
706
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 255320 if (IS_SUB_8X8(sub_mb_type)) {
707 230012 const int16_t *mv_col = l1mv[x8 * 3 + y8 * 3 * b4_stride];
708 230012 int mx = (scale * mv_col[0] + 128) >> 8;
709 230012 int my = (scale * mv_col[1] + 128) >> 8;
710 230012 fill_rectangle(&sl->mv_cache[0][scan8[i8 * 4]], 2, 2, 8,
711 pack16to32(mx, my), 4);
712 230012 fill_rectangle(&sl->mv_cache[1][scan8[i8 * 4]], 2, 2, 8,
713 230012 pack16to32(mx - mv_col[0], my - mv_col[1]), 4);
714 } else {
715
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 126540 for (i4 = 0; i4 < 4; i4++) {
716 101232 const int16_t *mv_col = l1mv[x8 * 2 + (i4 & 1) +
717 101232 (y8 * 2 + (i4 >> 1)) * b4_stride];
718 101232 int16_t *mv_l0 = sl->mv_cache[0][scan8[i8 * 4 + i4]];
719 101232 mv_l0[0] = (scale * mv_col[0] + 128) >> 8;
720 101232 mv_l0[1] = (scale * mv_col[1] + 128) >> 8;
721 101232 AV_WN32A(sl->mv_cache[1][scan8[i8 * 4 + i4]],
722 pack16to32(mv_l0[0] - mv_col[0],
723 mv_l0[1] - mv_col[1]));
724 }
725 }
726 }
727 }
728 }
729 }
730
731 3342901 void ff_h264_pred_direct_motion(const H264Context *const h, H264SliceContext *sl,
732 int *mb_type)
733 {
734
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 3342901 if (sl->direct_spatial_mv_pred)
735 3090333 pred_spatial_direct_motion(h, sl, mb_type);
736 else
737 252568 pred_temp_direct_motion(h, sl, mb_type);
738 3342901 }
739