FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/h264_direct.c
Date: 2023-03-31 03:41:15
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 27501 static int get_scale_factor(H264SliceContext *sl,
38 int poc, int poc1, int i)
39 {
40 27501 int poc0 = sl->ref_list[0][i].poc;
41 27501 int64_t pocdiff = poc1 - (int64_t)poc0;
42 27501 int td = av_clip_int8(pocdiff);
43
44
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 27501 if (pocdiff != (int)pocdiff)
45 ✗ avpriv_request_sample(sl->h264->avctx, "pocdiff overflow");
46
47
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 27501 if (td == 0 || sl->ref_list[0][i].parent->long_ref) {
48 8127 return 256;
49 } else {
50 19374 int64_t pocdiff0 = poc - (int64_t)poc0;
51 19374 int tb = av_clip_int8(pocdiff0);
52 19374 int tx = (16384 + (FFABS(td) >> 1)) / td;
53
54
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 19374 if (pocdiff0 != (int)pocdiff0)
55 ✗ av_log(sl->h264->avctx, AV_LOG_DEBUG, "pocdiff0 overflow\n");
56
57 19374 return av_clip_intp2((tb * tx + 32) >> 6, 10);
58 }
59 }
60
61 7703 void ff_h264_direct_dist_scale_factor(const H264Context *const h,
62 H264SliceContext *sl)
63 {
64 18790 const int poc = FIELD_PICTURE(h) ? h->cur_pic_ptr->field_poc[h->picture_structure == PICT_BOTTOM_FIELD]
65
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 7703 : h->cur_pic_ptr->poc;
66 7703 const int poc1 = sl->ref_list[1][0].poc;
67 int i, field;
68
69
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 7703 if (FRAME_MBAFF(h))
70
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 1539 for (field = 0; field < 2; field++) {
71 1026 const int poc = h->cur_pic_ptr->field_poc[field];
72 1026 const int poc1 = sl->ref_list[1][0].parent->field_poc[field];
73
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 7598 for (i = 0; i < 2 * sl->ref_count[0]; i++)
74 6572 sl->dist_scale_factor_field[field][i ^ field] =
75 6572 get_scale_factor(sl, poc, poc1, i + 16);
76 }
77
78
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 28632 for (i = 0; i < sl->ref_count[0]; i++)
79 20929 sl->dist_scale_factor[i] = get_scale_factor(sl, poc, poc1, i);
80 7703 }
81
82 17458 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 17458 H264Picture *const ref1 = sl->ref_list[1][0].parent;
87 int j, old_ref, rfield;
88
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 17458 int start = mbafi ? 16 : 0;
89
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 17458 int end = mbafi ? 16 + 2 * sl->ref_count[0] : sl->ref_count[0];
90
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 17458 int interl = mbafi || h->picture_structure != PICT_FRAME;
91
92 /* bogus; fills in for missing frames */
93 17458 memset(map[list], 0, sizeof(map[list]));
94
95
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 52374 for (rfield = 0; rfield < 2; rfield++) {
96
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 72084 for (old_ref = 0; old_ref < ref1->ref_count[colfield][list]; old_ref++) {
97 37168 int poc = ref1->ref_poc[colfield][list][old_ref];
98
99
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 37168 if (!interl)
100 16796 poc |= 3;
101 // FIXME: store all MBAFF references so this is not needed
102
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 20372 else if (interl && (poc & 3) == 3)
103 5396 poc = (poc & ~3) + rfield + 1;
104
105
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 108524 for (j = start; j < end; j++) {
106 101132 if (4 * sl->ref_list[0][j].parent->frame_num +
107
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 101132 (sl->ref_list[0][j].reference & 3) == poc) {
108
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 29776 int cur_ref = mbafi ? (j - 16) ^ field : j;
109
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 29776 if (ref1->mbaff)
110 5736 map[list][2 * old_ref + (rfield ^ field) + 16] = cur_ref;
111
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 29776 if (rfield == field || !interl)
112 21462 map[list][old_ref] = cur_ref;
113 29776 break;
114 }
115 }
116 }
117 }
118 17458 }
119
120 35528 void ff_h264_direct_ref_list_init(const H264Context *const h, H264SliceContext *sl)
121 {
122 35528 H264Ref *const ref1 = &sl->ref_list[1][0];
123 35528 H264Picture *const cur = h->cur_pic_ptr;
124 int list, j, field;
125 35528 int sidx = (h->picture_structure & 1) ^ 1;
126 35528 int ref1sidx = (ref1->reference & 1) ^ 1;
127
128
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 79192 for (list = 0; list < sl->list_count; list++) {
129 43664 cur->ref_count[sidx][list] = sl->ref_count[list];
130
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 181829 for (j = 0; j < sl->ref_count[list]; j++)
131 138165 cur->ref_poc[sidx][list][j] = 4 * sl->ref_list[list][j].parent->frame_num +
132 138165 (sl->ref_list[list][j].reference & 3);
133 }
134
135
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 35528 if (h->picture_structure == PICT_FRAME) {
136 26584 memcpy(cur->ref_count[1], cur->ref_count[0], sizeof(cur->ref_count[0]));
137 26584 memcpy(cur->ref_poc[1], cur->ref_poc[0], sizeof(cur->ref_poc[0]));
138 }
139
140
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 35528 if (h->current_slice == 0) {
141 26856 cur->mbaff = FRAME_MBAFF(h);
142 } else {
143
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 8672 av_assert0(cur->mbaff == FRAME_MBAFF(h));
144 }
145
146 35528 sl->col_fieldoff = 0;
147
148
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 35528 if (sl->list_count != 2 || !sl->ref_count[1])
149 23074 return;
150
151
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 12454 if (h->picture_structure == PICT_FRAME) {
152 7647 int cur_poc = h->cur_pic_ptr->poc;
153 7647 int *col_poc = sl->ref_list[1][0].parent->field_poc;
154
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 7647 if (col_poc[0] == INT_MAX && col_poc[1] == INT_MAX) {
155 4 av_log(h->avctx, AV_LOG_ERROR, "co located POCs unavailable\n");
156 4 sl->col_parity = 1;
157 } else
158 7643 sl->col_parity = (FFABS(col_poc[0] - (int64_t)cur_poc) >=
159 7643 FFABS(col_poc[1] - (int64_t)cur_poc));
160 7647 ref1sidx =
161 7647 sidx = sl->col_parity;
162 // FL -> FL & differ parity
163
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 4807 } 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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 12454 if (sl->slice_type_nos != AV_PICTURE_TYPE_B || sl->direct_spatial_mv_pred)
169 4751 return;
170
171
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 23109 for (list = 0; list < 2; list++) {
172 15406 fill_colmap(h, sl, sl->map_col_to_list0, list, sidx, ref1sidx, 0);
173
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 15406 if (FRAME_MBAFF(h))
174
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 3078 for (field = 0; field < 2; field++)
175 2052 fill_colmap(h, sl, sl->map_col_to_list0_field[field], list, field,
176 field, 1);
177 }
178 }
179
180 4352690 static void await_reference_mb_row(const H264Context *const h, H264Ref *ref,
181 int mb_y)
182 {
183 4352690 int ref_field = ref->reference - 1;
184 4352690 int ref_field_picture = ref->parent->field_picture;
185 4352690 int ref_height = 16 * h->mb_height >> ref_field_picture;
186
187
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 4352690 if (!HAVE_THREADS || !(h->avctx->active_thread_type & FF_THREAD_FRAME))
188 4323807 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 2803333 static void pred_spatial_direct_motion(const H264Context *const h, H264SliceContext *sl,
200 int *mb_type)
201 {
202 2803333 int b8_stride = 2;
203 2803333 int b4_stride = h->b_stride;
204 2803333 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 2803333 const int is_b8x8 = IS_8X8(*mb_type);
209 2803333 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 2803333 await_reference_mb_row(h, &sl->ref_list[1][0],
218 2803333 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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 8409999 for (list = 0; list < 2; list++) {
225 5606666 int left_ref = sl->ref_cache[list][scan8[0] - 1];
226 5606666 int top_ref = sl->ref_cache[list][scan8[0] - 8];
227 5606666 int refc = sl->ref_cache[list][scan8[0] - 8 + 4];
228 5606666 const int16_t *C = sl->mv_cache[list][scan8[0] - 8 + 4];
229
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 5606666 if (refc == PART_NOT_AVAILABLE) {
230 680628 refc = sl->ref_cache[list][scan8[0] - 8 - 1];
231 680628 C = sl->mv_cache[list][scan8[0] - 8 - 1];
232 }
233 5606666 ref[list] = FFMIN3((unsigned)left_ref,
234 (unsigned)top_ref,
235 (unsigned)refc);
236
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 5606666 if (ref[list] >= 0) {
237 /* This is just pred_motion() but with the cases removed that
238 * cannot happen for direct blocks. */
239 5138564 const int16_t *const A = sl->mv_cache[list][scan8[0] - 1];
240 5138564 const int16_t *const B = sl->mv_cache[list][scan8[0] - 8];
241
242 5138564 int match_count = (left_ref == ref[list]) +
243 5138564 (top_ref == ref[list]) +
244 5138564 (refc == ref[list]);
245
246
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 5138564 if (match_count > 1) { // most common
247 4574917 mv[list] = pack16to32(mid_pred(A[0], B[0], C[0]),
248 4574917 mid_pred(A[1], B[1], C[1]));
249 } else {
250 assert(match_count == 1);
251
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 563647 if (left_ref == ref[list])
252 439189 mv[list] = AV_RN32A(A);
253
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 124458 else if (top_ref == ref[list])
254 58867 mv[list] = AV_RN32A(B);
255 else
256 65591 mv[list] = AV_RN32A(C);
257 }
258 av_assert2(ref[list] < (sl->ref_count[list] << !!FRAME_MBAFF(h)));
259 } else {
260 468102 int mask = ~(MB_TYPE_L0 << (2 * list));
261 468102 mv[list] = 0;
262 468102 ref[list] = -1;
263
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 468102 if (!is_b8x8)
264 442319 *mb_type &= mask;
265 468102 sub_mb_type &= mask;
266 }
267 }
268
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 2803333 if (ref[0] < 0 && ref[1] < 0) {
269 5841 ref[0] = ref[1] = 0;
270
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 5841 if (!is_b8x8)
271 4952 *mb_type |= MB_TYPE_L0L1;
272 5841 sub_mb_type |= MB_TYPE_L0L1;
273 }
274
275
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 2803333 if (!(is_b8x8 | mv[0] | mv[1])) {
276 1757608 fill_rectangle(&sl->ref_cache[0][scan8[0]], 4, 4, 8, (uint8_t)ref[0], 1);
277 1757608 fill_rectangle(&sl->ref_cache[1][scan8[0]], 4, 4, 8, (uint8_t)ref[1], 1);
278 1757608 fill_rectangle(&sl->mv_cache[0][scan8[0]], 4, 4, 8, 0, 4);
279 1757608 fill_rectangle(&sl->mv_cache[1][scan8[0]], 4, 4, 8, 0, 4);
280 1757608 *mb_type = (*mb_type & ~(MB_TYPE_8x8 | MB_TYPE_16x8 | MB_TYPE_8x16 |
281 MB_TYPE_P1L0 | MB_TYPE_P1L1)) |
282 1757608 MB_TYPE_16x16 | MB_TYPE_DIRECT2;
283 1757608 return;
284 }
285
286
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 1045725 if (IS_INTERLACED(sl->ref_list[1][0].parent->mb_type[mb_xy])) { // AFL/AFR/FR/FL -> AFL/FL
287
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 713368 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 669797 mb_y += sl->col_fieldoff;
294 669797 mb_xy += h->mb_stride * sl->col_fieldoff; // non-zero for FL -> FL & differ parity
295 }
296 713368 goto single_col;
297 } else { // AFL/AFR/FR/FL -> AFR/FR
298
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 332357 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 281011 single_col:
321 994379 mb_type_col[0] =
322 994379 mb_type_col[1] = sl->ref_list[1][0].parent->mb_type[mb_xy];
323
324 994379 sub_mb_type |= MB_TYPE_16x16 | MB_TYPE_DIRECT2; /* B_SUB_8x8 */
325
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 994379 if (!is_b8x8 && (mb_type_col[0] & MB_TYPE_16x16_OR_INTRA)) {
326 829760 *mb_type |= MB_TYPE_16x16 | MB_TYPE_DIRECT2; /* B_16x16 */
327
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 164619 } else if (!is_b8x8 &&
328
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 91346 (mb_type_col[0] & (MB_TYPE_16x8 | MB_TYPE_8x16))) {
329 50389 *mb_type |= MB_TYPE_DIRECT2 |
330 50389 (mb_type_col[0] & (MB_TYPE_16x8 | MB_TYPE_8x16));
331 } else {
332
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 114230 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 21546 sub_mb_type += (MB_TYPE_8x8 - MB_TYPE_16x16); /* B_SUB_4x4 */
336 }
337 114230 *mb_type |= MB_TYPE_8x8;
338 }
339 }
340 }
341
342 1045725 await_reference_mb_row(h, &sl->ref_list[1][0], mb_y);
343
344 1045725 l1mv0 = (void*)&sl->ref_list[1][0].parent->motion_val[0][h->mb2b_xy[mb_xy]];
345 1045725 l1mv1 = (void*)&sl->ref_list[1][0].parent->motion_val[1][h->mb2b_xy[mb_xy]];
346 1045725 l1ref0 = &sl->ref_list[1][0].parent->ref_index[0][4 * mb_xy];
347 1045725 l1ref1 = &sl->ref_list[1][0].parent->ref_index[1][4 * mb_xy];
348
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 1045725 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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 1045725 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
4/4
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✓ Branch 1 taken 312852 times.
✓ Branch 2 taken 27121 times.
✓ 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
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 &&
375
2/2
✓ Branch 0 taken 134513 times.
✓ Branch 1 taken 62749 times.
 197262 ((l1ref0[xy8] == 0 &&
376
2/2
✓ Branch 0 taken 10493 times.
✓ Branch 1 taken 124020 times.
 134513 FFABS(l1mv0[xy4][0]) <= 1 &&
377
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✓ Branch 0 taken 4460 times.
✓ 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
2/2
✓ Branch 0 taken 9667 times.
✓ Branch 1 taken 2567 times.
 12234 l1ref1[xy8] == 0 &&
380
2/2
✓ Branch 0 taken 826 times.
✓ Branch 1 taken 8841 times.
 9667 FFABS(l1mv1[xy4][0]) <= 1 &&
381
2/2
✓ Branch 0 taken 502 times.
✓ Branch 1 taken 324 times.
 826 FFABS(l1mv1[xy4][1]) <= 1))) {
382 6535 a =
383 6535 b = 0;
384
2/2
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✓ Branch 1 taken 6020 times.
 6535 if (ref[0] > 0)
385 515 a = mv[0];
386
2/2
✓ Branch 0 taken 159 times.
✓ 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
4/4
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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
2/2
✓ Branch 0 taken 800846 times.
✓ Branch 1 taken 149962 times.
 950808 } else if (IS_16X16(*mb_type)) {
401 int a, b;
402
403 800846 fill_rectangle(&sl->ref_cache[0][scan8[0]], 4, 4, 8, (uint8_t)ref[0], 1);
404 800846 fill_rectangle(&sl->ref_cache[1][scan8[0]], 4, 4, 8, (uint8_t)ref[1], 1);
405
4/4
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✓ Branch 1 taken 206060 times.
✓ Branch 2 taken 594775 times.
✓ Branch 3 taken 11 times.
 800846 if (!IS_INTRA(mb_type_col[0]) && !sl->ref_list[1][0].parent->long_ref &&
406
2/2
✓ Branch 0 taken 321775 times.
✓ Branch 1 taken 273000 times.
 594775 ((l1ref0[0] == 0 &&
407
2/2
✓ Branch 0 taken 62972 times.
✓ Branch 1 taken 258803 times.
 321775 FFABS(l1mv0[0][0]) <= 1 &&
408
2/2
✓ Branch 0 taken 34177 times.
✓ Branch 1 taken 28795 times.
 62972 FFABS(l1mv0[0][1]) <= 1) ||
409
4/4
✓ Branch 0 taken 18004 times.
✓ Branch 1 taken 547976 times.
✓ Branch 2 taken 17315 times.
✓ Branch 3 taken 689 times.
 565980 (l1ref0[0] < 0 && !l1ref1[0] &&
410
2/2
✓ Branch 0 taken 4745 times.
✓ Branch 1 taken 12570 times.
 17315 FFABS(l1mv1[0][0]) <= 1 &&
411
2/2
✓ Branch 0 taken 3908 times.
✓ Branch 1 taken 837 times.
 4745 FFABS(l1mv1[0][1]) <= 1 &&
412
1/2
✓ Branch 0 taken 3908 times.
✗ Branch 1 not taken.
 3908 h->x264_build > 33U))) {
413 32703 a = b = 0;
414
2/2
✓ Branch 0 taken 7029 times.
✓ Branch 1 taken 25674 times.
 32703 if (ref[0] > 0)
415 7029 a = mv[0];
416
2/2
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✓ Branch 1 taken 27994 times.
 32703 if (ref[1] > 0)
417 4709 b = mv[1];
418 } else {
419 768143 a = mv[0];
420 768143 b = mv[1];
421 }
422 800846 fill_rectangle(&sl->mv_cache[0][scan8[0]], 4, 4, 8, a, 4);
423 800846 fill_rectangle(&sl->mv_cache[1][scan8[0]], 4, 4, 8, b, 4);
424 } else {
425 149962 int n = 0;
426
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✓ Branch 0 taken 599848 times.
✓ Branch 1 taken 149962 times.
 749810 for (i8 = 0; i8 < 4; i8++) {
427 599848 const int x8 = i8 & 1;
428 599848 const int y8 = i8 >> 1;
429
430
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✓ Branch 1 taken 337044 times.
✓ Branch 2 taken 119718 times.
✓ Branch 3 taken 143086 times.
 599848 if (is_b8x8 && !IS_DIRECT(sl->sub_mb_type[i8]))
431 119718 continue;
432 480130 sl->sub_mb_type[i8] = sub_mb_type;
433
434 480130 fill_rectangle(&sl->mv_cache[0][scan8[i8 * 4]], 2, 2, 8, mv[0], 4);
435 480130 fill_rectangle(&sl->mv_cache[1][scan8[i8 * 4]], 2, 2, 8, mv[1], 4);
436 480130 fill_rectangle(&sl->ref_cache[0][scan8[i8 * 4]], 2, 2, 8,
437 480130 (uint8_t)ref[0], 1);
438 480130 fill_rectangle(&sl->ref_cache[1][scan8[i8 * 4]], 2, 2, 8,
439 480130 (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 440747 times.
✓ Branch 3 taken 132 times.
 480130 if (!IS_INTRA(mb_type_col[0]) && !sl->ref_list[1][0].parent->long_ref &&
444
2/2
✓ Branch 0 taken 169007 times.
✓ Branch 1 taken 271740 times.
 440747 (l1ref0[i8] == 0 ||
445
2/2
✓ Branch 0 taken 12349 times.
✓ Branch 1 taken 156658 times.
 169007 (l1ref0[i8] < 0 &&
446
2/2
✓ Branch 0 taken 11245 times.
✓ Branch 1 taken 1104 times.
 12349 l1ref1[i8] == 0 &&
447
1/2
✓ Branch 0 taken 11245 times.
✗ Branch 1 not taken.
 11245 h->x264_build > 33U))) {
448
2/2
✓ Branch 0 taken 271740 times.
✓ Branch 1 taken 11245 times.
 282985 const int16_t (*l1mv)[2] = l1ref0[i8] == 0 ? l1mv0 : l1mv1;
449
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✓ Branch 0 taken 252746 times.
✓ Branch 1 taken 30239 times.
 282985 if (IS_SUB_8X8(sub_mb_type)) {
450 252746 const int16_t *mv_col = l1mv[x8 * 3 + y8 * 3 * b4_stride];
451
4/4
✓ Branch 0 taken 37980 times.
✓ Branch 1 taken 214766 times.
✓ Branch 2 taken 19685 times.
✓ Branch 3 taken 18295 times.
 252746 if (FFABS(mv_col[0]) <= 1 && FFABS(mv_col[1]) <= 1) {
452
2/2
✓ Branch 0 taken 16504 times.
✓ Branch 1 taken 3181 times.
 19685 if (ref[0] == 0)
453 16504 fill_rectangle(&sl->mv_cache[0][scan8[i8 * 4]], 2, 2,
454 8, 0, 4);
455
2/2
✓ Branch 0 taken 17539 times.
✓ Branch 1 taken 2146 times.
 19685 if (ref[1] == 0)
456 17539 fill_rectangle(&sl->mv_cache[1][scan8[i8 * 4]], 2, 2,
457 8, 0, 4);
458 19685 n += 4;
459 }
460 } else {
461 30239 int m = 0;
462
2/2
✓ Branch 0 taken 120956 times.
✓ Branch 1 taken 30239 times.
 151195 for (i4 = 0; i4 < 4; i4++) {
463 120956 const int16_t *mv_col = l1mv[x8 * 2 + (i4 & 1) +
464 120956 (y8 * 2 + (i4 >> 1)) * b4_stride];
465
4/4
✓ Branch 0 taken 8348 times.
✓ Branch 1 taken 112608 times.
✓ Branch 2 taken 2956 times.
✓ Branch 3 taken 5392 times.
 120956 if (FFABS(mv_col[0]) <= 1 && FFABS(mv_col[1]) <= 1) {
466
2/2
✓ Branch 0 taken 1991 times.
✓ Branch 1 taken 965 times.
 2956 if (ref[0] == 0)
467 1991 AV_ZERO32(sl->mv_cache[0][scan8[i8 * 4 + i4]]);
468
2/2
✓ Branch 0 taken 2710 times.
✓ Branch 1 taken 246 times.
 2956 if (ref[1] == 0)
469 2710 AV_ZERO32(sl->mv_cache[1][scan8[i8 * 4 + i4]]);
470 2956 m++;
471 }
472 }
473
2/2
✓ Branch 0 taken 29926 times.
✓ Branch 1 taken 313 times.
 30239 if (!(m & 3))
474 29926 sl->sub_mb_type[i8] += MB_TYPE_16x16 - MB_TYPE_8x8;
475 30239 n += m;
476 }
477 }
478 }
479
4/4
✓ Branch 0 taken 84261 times.
✓ Branch 1 taken 65701 times.
✓ Branch 2 taken 77881 times.
✓ Branch 3 taken 6380 times.
 149962 if (!is_b8x8 && !(n & 15))
480 77881 *mb_type = (*mb_type & ~(MB_TYPE_8x8 | MB_TYPE_16x8 | MB_TYPE_8x16 |
481 MB_TYPE_P1L0 | MB_TYPE_P1L1)) |
482 77881 MB_TYPE_16x16 | MB_TYPE_DIRECT2;
483 }
484 }
485
486 251816 static void pred_temp_direct_motion(const H264Context *const h, H264SliceContext *sl,
487 int *mb_type)
488 {
489 251816 int b8_stride = 2;
490 251816 int b4_stride = h->b_stride;
491 251816 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 251816 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 251816 await_reference_mb_row(h, &sl->ref_list[1][0],
502 251816 sl->mb_y + !!IS_INTERLACED(*mb_type));
503
504
2/2
✓ Branch 0 taken 88777 times.
✓ Branch 1 taken 163039 times.
 251816 if (IS_INTERLACED(sl->ref_list[1][0].parent->mb_type[mb_xy])) { // AFL/AFR/FR/FL -> AFL/FL
505
2/2
✓ Branch 0 taken 15611 times.
✓ Branch 1 taken 73166 times.
 88777 if (!IS_INTERLACED(*mb_type)) { // AFR/FR -> AFL/FL
506 15611 mb_y = (sl->mb_y & ~1) + sl->col_parity;
507 15611 mb_xy = sl->mb_x +
508 15611 ((sl->mb_y & ~1) + sl->col_parity) * h->mb_stride;
509 15611 b8_stride = 0;
510 } else {
511 73166 mb_y += sl->col_fieldoff;
512 73166 mb_xy += h->mb_stride * sl->col_fieldoff; // non-zero for FL -> FL & differ parity
513 }
514 88777 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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✗ Branch 0 not taken.
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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
2/2
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✓ Branch 1 taken 6662 times.
 16549 if ((mb_type_col[0] & MB_TYPE_16x16_OR_INTRA) &&
533
4/4
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✓ Branch 1 taken 2678 times.
✓ 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 235267 mb_type_col[0] =
543 235267 mb_type_col[1] = sl->ref_list[1][0].parent->mb_type[mb_xy];
544
545 235267 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 134937 times.
✓ Branch 3 taken 54757 times.
 235267 if (!is_b8x8 && (mb_type_col[0] & MB_TYPE_16x16_OR_INTRA)) {
548 134937 *mb_type |= MB_TYPE_16x16 | MB_TYPE_P0L0 | MB_TYPE_P0L1 |
549 MB_TYPE_DIRECT2; /* B_16x16 */
550
2/2
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✓ Branch 1 taken 45573 times.
 100330 } else if (!is_b8x8 &&
551
2/2
✓ Branch 0 taken 34983 times.
✓ Branch 1 taken 19774 times.
 54757 (mb_type_col[0] & (MB_TYPE_16x8 | MB_TYPE_8x16))) {
552 34983 *mb_type |= MB_TYPE_L0L1 | MB_TYPE_DIRECT2 |
553 34983 (mb_type_col[0] & (MB_TYPE_16x8 | MB_TYPE_8x16));
554 } else {
555
2/2
✓ Branch 0 taken 10593 times.
✓ Branch 1 taken 54754 times.
 65347 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 65347 *mb_type |= MB_TYPE_8x8 | MB_TYPE_L0L1;
562 }
563 }
564 }
565
566 251816 await_reference_mb_row(h, &sl->ref_list[1][0], mb_y);
567
568 251816 l1mv0 = (void*)&sl->ref_list[1][0].parent->motion_val[0][h->mb2b_xy[mb_xy]];
569 251816 l1mv1 = (void*)&sl->ref_list[1][0].parent->motion_val[1][h->mb2b_xy[mb_xy]];
570 251816 l1ref0 = &sl->ref_list[1][0].parent->ref_index[0][4 * mb_xy];
571 251816 l1ref1 = &sl->ref_list[1][0].parent->ref_index[1][4 * mb_xy];
572
2/2
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✓ Branch 1 taken 236205 times.
 251816 if (!b8_stride) {
573
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✓ Branch 1 taken 7891 times.
 15611 if (sl->mb_y & 1) {
574 7720 l1ref0 += 2;
575 7720 l1ref1 += 2;
576 7720 l1mv0 += 2 * b4_stride;
577 7720 l1mv1 += 2 * b4_stride;
578 }
579 }
580
581 {
582 251816 const int *map_col_to_list0[2] = { sl->map_col_to_list0[0],
583 251816 sl->map_col_to_list0[1] };
584 251816 const int *dist_scale_factor = sl->dist_scale_factor;
585 int ref_offset;
586
587
4/4
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 251816 if (FRAME_MBAFF(h) && IS_INTERLACED(*mb_type)) {
588 20032 map_col_to_list0[0] = sl->map_col_to_list0_field[sl->mb_y & 1][0];
589 20032 map_col_to_list0[1] = sl->map_col_to_list0_field[sl->mb_y & 1][1];
590 20032 dist_scale_factor = sl->dist_scale_factor_field[sl->mb_y & 1];
591 }
592 251816 ref_offset = (sl->ref_list[1][0].parent->mbaff << 4) & (mb_type_col[0] >> 3);
593
594
2/2
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 251816 if (IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col[0])) {
595
2/2
✓ Branch 0 taken 15611 times.
✓ Branch 1 taken 16549 times.
 32160 int y_shift = 2 * !IS_INTERLACED(*mb_type);
596 assert(h->ps.sps->direct_8x8_inference_flag);
597
598
2/2
✓ Branch 0 taken 128640 times.
✓ Branch 1 taken 32160 times.
 160800 for (i8 = 0; i8 < 4; i8++) {
599 128640 const int x8 = i8 & 1;
600 128640 const int y8 = i8 >> 1;
601 int ref0, scale;
602 128640 const int16_t (*l1mv)[2] = l1mv0;
603
604
4/4
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✓ Branch 2 taken 22674 times.
✓ Branch 3 taken 20586 times.
 128640 if (is_b8x8 && !IS_DIRECT(sl->sub_mb_type[i8]))
605 22674 continue;
606 105966 sl->sub_mb_type[i8] = sub_mb_type;
607
608 105966 fill_rectangle(&sl->ref_cache[1][scan8[i8 * 4]], 2, 2, 8, 0, 1);
609
2/2
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✓ Branch 1 taken 80470 times.
 105966 if (IS_INTRA(mb_type_col[y8])) {
610 25496 fill_rectangle(&sl->ref_cache[0][scan8[i8 * 4]], 2, 2, 8, 0, 1);
611 25496 fill_rectangle(&sl->mv_cache[0][scan8[i8 * 4]], 2, 2, 8, 0, 4);
612 25496 fill_rectangle(&sl->mv_cache[1][scan8[i8 * 4]], 2, 2, 8, 0, 4);
613 25496 continue;
614 }
615
616 80470 ref0 = l1ref0[x8 + y8 * b8_stride];
617
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✓ Branch 1 taken 193 times.
 80470 if (ref0 >= 0)
618 80277 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 80470 scale = dist_scale_factor[ref0];
625 80470 fill_rectangle(&sl->ref_cache[0][scan8[i8 * 4]], 2, 2, 8,
626 ref0, 1);
627
628 {
629 80470 const int16_t *mv_col = l1mv[x8 * 3 + y8 * b4_stride];
630 80470 int my_col = (mv_col[1] * (1 << y_shift)) / 2;
631 80470 int mx = (scale * mv_col[0] + 128) >> 8;
632 80470 int my = (scale * my_col + 128) >> 8;
633 80470 fill_rectangle(&sl->mv_cache[0][scan8[i8 * 4]], 2, 2, 8,
634 pack16to32(mx, my), 4);
635 80470 fill_rectangle(&sl->mv_cache[1][scan8[i8 * 4]], 2, 2, 8,
636 80470 pack16to32(mx - mv_col[0], my - my_col), 4);
637 }
638 }
639 32160 return;
640 }
641
642 /* one-to-one mv scaling */
643
644
2/2
✓ Branch 0 taken 127333 times.
✓ Branch 1 taken 92323 times.
 219656 if (IS_16X16(*mb_type)) {
645 int ref, mv0, mv1;
646
647 127333 fill_rectangle(&sl->ref_cache[1][scan8[0]], 4, 4, 8, 0, 1);
648
2/2
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✓ Branch 1 taken 66342 times.
 127333 if (IS_INTRA(mb_type_col[0])) {
649 60991 ref = mv0 = mv1 = 0;
650 } else {
651 198975 const int ref0 = l1ref0[0] >= 0 ? map_col_to_list0[0][l1ref0[0] + ref_offset]
652
2/2
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✓ Branch 1 taken 51 times.
 66342 : map_col_to_list0[1][l1ref1[0] + ref_offset];
653 66342 const int scale = dist_scale_factor[ref0];
654
2/2
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✓ Branch 1 taken 51 times.
 66342 const int16_t *mv_col = l1ref0[0] >= 0 ? l1mv0[0] : l1mv1[0];
655 int mv_l0[2];
656 66342 mv_l0[0] = (scale * mv_col[0] + 128) >> 8;
657 66342 mv_l0[1] = (scale * mv_col[1] + 128) >> 8;
658 66342 ref = ref0;
659 66342 mv0 = pack16to32(mv_l0[0], mv_l0[1]);
660 66342 mv1 = pack16to32(mv_l0[0] - mv_col[0], mv_l0[1] - mv_col[1]);
661 }
662 127333 fill_rectangle(&sl->ref_cache[0][scan8[0]], 4, 4, 8, ref, 1);
663 127333 fill_rectangle(&sl->mv_cache[0][scan8[0]], 4, 4, 8, mv0, 4);
664 127333 fill_rectangle(&sl->mv_cache[1][scan8[0]], 4, 4, 8, mv1, 4);
665 } else {
666
2/2
✓ Branch 0 taken 369292 times.
✓ Branch 1 taken 92323 times.
 461615 for (i8 = 0; i8 < 4; i8++) {
667 369292 const int x8 = i8 & 1;
668 369292 const int y8 = i8 >> 1;
669 int ref0, scale;
670 369292 const int16_t (*l1mv)[2] = l1mv0;
671
672
4/4
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✓ Branch 2 taken 92460 times.
✓ Branch 3 taken 71440 times.
 369292 if (is_b8x8 && !IS_DIRECT(sl->sub_mb_type[i8]))
673 92460 continue;
674 276832 sl->sub_mb_type[i8] = sub_mb_type;
675 276832 fill_rectangle(&sl->ref_cache[1][scan8[i8 * 4]], 2, 2, 8, 0, 1);
676
2/2
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 276832 if (IS_INTRA(mb_type_col[0])) {
677 22293 fill_rectangle(&sl->ref_cache[0][scan8[i8 * 4]], 2, 2, 8, 0, 1);
678 22293 fill_rectangle(&sl->mv_cache[0][scan8[i8 * 4]], 2, 2, 8, 0, 4);
679 22293 fill_rectangle(&sl->mv_cache[1][scan8[i8 * 4]], 2, 2, 8, 0, 4);
680 22293 continue;
681 }
682
683 assert(b8_stride == 2);
684 254539 ref0 = l1ref0[i8];
685
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 254539 if (ref0 >= 0)
686 254519 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 254539 scale = dist_scale_factor[ref0];
692
693 254539 fill_rectangle(&sl->ref_cache[0][scan8[i8 * 4]], 2, 2, 8,
694 ref0, 1);
695
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 254539 if (IS_SUB_8X8(sub_mb_type)) {
696 229231 const int16_t *mv_col = l1mv[x8 * 3 + y8 * 3 * b4_stride];
697 229231 int mx = (scale * mv_col[0] + 128) >> 8;
698 229231 int my = (scale * mv_col[1] + 128) >> 8;
699 229231 fill_rectangle(&sl->mv_cache[0][scan8[i8 * 4]], 2, 2, 8,
700 pack16to32(mx, my), 4);
701 229231 fill_rectangle(&sl->mv_cache[1][scan8[i8 * 4]], 2, 2, 8,
702 229231 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 3055149 void ff_h264_pred_direct_motion(const H264Context *const h, H264SliceContext *sl,
721 int *mb_type)
722 {
723
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 3055149 if (sl->direct_spatial_mv_pred)
724 2803333 pred_spatial_direct_motion(h, sl, mb_type);
725 else
726 251816 pred_temp_direct_motion(h, sl, mb_type);
727 3055149 }
728