FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/h264_mvpred.h
Date: 2026-09-11 02:21:26
Exec Total Coverage
Lines: 500 502 99.6%
Functions: 14 14 100.0%
Branches: 374 376 99.5%
Line Branch Exec Source
1 /*
2 * H.26L/H.264/AVC/JVT/14496-10/... motion vector prediction
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 motion vector prediction.
25 * @author Michael Niedermayer <michaelni@gmx.at>
26 */
27
28 #ifndef AVCODEC_H264_MVPRED_H
29 #define AVCODEC_H264_MVPRED_H
30
31 #include "h264dec.h"
32 #include "mpegutils.h"
33 #include "rectangle.h"
34
35 #include "libavutil/avassert.h"
36 #include "libavutil/mem_internal.h"
37
38
39 /**
40 * Get the predicted intra4x4 prediction mode.
41 */
42 30811240 static av_always_inline int pred_intra_mode(const H264Context *h,
43 H264SliceContext *sl, int n)
44 {
45 30811240 const int index8 = scan8[n];
46 30811240 const int left = sl->intra4x4_pred_mode_cache[index8 - 1];
47 30811240 const int top = sl->intra4x4_pred_mode_cache[index8 - 8];
48 30811240 const int min = FFMIN(left, top);
49
50 ff_tlog(h->avctx, "mode:%d %d min:%d\n", left, top, min);
51
52
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 30811240 if (min < 0)
53 866705 return DC_PRED;
54 else
55 29944535 return min;
56 }
57
58 3084493 static av_always_inline void write_back_intra_pred_mode(const H264Context *h,
59 H264SliceContext *sl)
60 {
61 3084493 int8_t *i4x4 = sl->intra4x4_pred_mode + h->mb2br_xy[sl->mb_xy];
62 3084493 int8_t *i4x4_cache = sl->intra4x4_pred_mode_cache;
63
64 3084493 AV_COPY32(i4x4, i4x4_cache + 4 + 8 * 4);
65 3084493 i4x4[4] = i4x4_cache[7 + 8 * 3];
66 3084493 i4x4[5] = i4x4_cache[7 + 8 * 2];
67 3084493 i4x4[6] = i4x4_cache[7 + 8 * 1];
68 3084493 }
69
70 11057978 static av_always_inline void write_back_non_zero_count(const H264Context *h,
71 H264SliceContext *sl)
72 {
73 11057978 const int mb_xy = sl->mb_xy;
74 11057978 uint8_t *nnz = h->non_zero_count[mb_xy];
75 11057978 uint8_t *nnz_cache = sl->non_zero_count_cache;
76
77 11057978 AV_COPY32(&nnz[ 0], &nnz_cache[4 + 8 * 1]);
78 11057978 AV_COPY32(&nnz[ 4], &nnz_cache[4 + 8 * 2]);
79 11057978 AV_COPY32(&nnz[ 8], &nnz_cache[4 + 8 * 3]);
80 11057978 AV_COPY32(&nnz[12], &nnz_cache[4 + 8 * 4]);
81 11057978 AV_COPY32(&nnz[16], &nnz_cache[4 + 8 * 6]);
82 11057978 AV_COPY32(&nnz[20], &nnz_cache[4 + 8 * 7]);
83 11057978 AV_COPY32(&nnz[32], &nnz_cache[4 + 8 * 11]);
84 11057978 AV_COPY32(&nnz[36], &nnz_cache[4 + 8 * 12]);
85
86
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 11057978 if (!h->chroma_y_shift) {
87 971539 AV_COPY32(&nnz[24], &nnz_cache[4 + 8 * 8]);
88 971539 AV_COPY32(&nnz[28], &nnz_cache[4 + 8 * 9]);
89 971539 AV_COPY32(&nnz[40], &nnz_cache[4 + 8 * 13]);
90 971539 AV_COPY32(&nnz[44], &nnz_cache[4 + 8 * 14]);
91 }
92 11057978 }
93
94 15279960 static av_always_inline void write_back_motion_list(const H264Context *h,
95 H264SliceContext *sl,
96 int b_stride,
97 int b_xy, int b8_xy,
98 int mb_type, int list)
99 {
100 15279960 int16_t(*mv_dst)[2] = &h->cur_pic.motion_val[list][b_xy];
101 15279960 int16_t(*mv_src)[2] = &sl->mv_cache[list][scan8[0]];
102 15279960 AV_COPY128(mv_dst + 0 * b_stride, mv_src + 8 * 0);
103 15279960 AV_COPY128(mv_dst + 1 * b_stride, mv_src + 8 * 1);
104 15279960 AV_COPY128(mv_dst + 2 * b_stride, mv_src + 8 * 2);
105 15279960 AV_COPY128(mv_dst + 3 * b_stride, mv_src + 8 * 3);
106 if (CABAC(h)) {
107 11238609 uint8_t (*mvd_dst)[2] = &sl->mvd_table[list][FMO ? 8 * sl->mb_xy
108 11238609 : h->mb2br_xy[sl->mb_xy]];
109 11238609 uint8_t(*mvd_src)[2] = &sl->mvd_cache[list][scan8[0]];
110
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 11238609 if (IS_SKIP(mb_type)) {
111 5358652 AV_ZERO128(mvd_dst);
112 } else {
113 5879957 AV_COPY64(mvd_dst, mvd_src + 8 * 3);
114 5879957 AV_COPY16(mvd_dst + 3 + 3, mvd_src + 3 + 8 * 0);
115 5879957 AV_COPY16(mvd_dst + 3 + 2, mvd_src + 3 + 8 * 1);
116 5879957 AV_COPY16(mvd_dst + 3 + 1, mvd_src + 3 + 8 * 2);
117 }
118 }
119
120 {
121 15279960 int8_t *ref_index = &h->cur_pic.ref_index[list][b8_xy];
122 15279960 int8_t *ref_cache = sl->ref_cache[list];
123 15279960 ref_index[0 + 0 * 2] = ref_cache[scan8[0]];
124 15279960 ref_index[1 + 0 * 2] = ref_cache[scan8[4]];
125 15279960 ref_index[0 + 1 * 2] = ref_cache[scan8[8]];
126 15279960 ref_index[1 + 1 * 2] = ref_cache[scan8[12]];
127 }
128 15279960 }
129
130 11392180 static av_always_inline void write_back_motion(const H264Context *h,
131 H264SliceContext *sl,
132 int mb_type)
133 {
134 11392180 const int b_stride = h->b_stride;
135 11392180 const int b_xy = 4 * sl->mb_x + 4 * sl->mb_y * h->b_stride; // try mb2b(8)_xy
136 11392180 const int b8_xy = 4 * sl->mb_xy;
137
138
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 11392180 if (USES_LIST(mb_type, 0)) {
139 10563749 write_back_motion_list(h, sl, b_stride, b_xy, b8_xy, mb_type, 0);
140 } else {
141 828431 fill_rectangle(&h->cur_pic.ref_index[0][b8_xy],
142 2, 2, 2, (uint8_t)LIST_NOT_USED, 1);
143 }
144
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 11392180 if (USES_LIST(mb_type, 1))
145 4716211 write_back_motion_list(h, sl, b_stride, b_xy, b8_xy, mb_type, 1);
146
147
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 8031117 if (sl->slice_type_nos == AV_PICTURE_TYPE_B && CABAC(h)) {
148
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 4679777 if (IS_8X8(mb_type)) {
149 424674 uint8_t *direct_table = &h->direct_table[4 * sl->mb_xy];
150 424674 direct_table[1] = sl->sub_mb_type[1] >> 1;
151 424674 direct_table[2] = sl->sub_mb_type[2] >> 1;
152 424674 direct_table[3] = sl->sub_mb_type[3] >> 1;
153 }
154 }
155 11392180 }
156
157 304688 static av_always_inline int get_dct8x8_allowed(const H264Context *h, H264SliceContext *sl)
158 {
159
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 304688 if (h->ps.sps->direct_8x8_inference_flag)
160 299811 return !(AV_RN64A(sl->sub_mb_type) &
161 ((MB_TYPE_16x8 | MB_TYPE_8x16 | MB_TYPE_8x8) *
162 0x0001000100010001ULL));
163 else
164 4877 return !(AV_RN64A(sl->sub_mb_type) &
165 ((MB_TYPE_16x8 | MB_TYPE_8x16 | MB_TYPE_8x8 | MB_TYPE_DIRECT2) *
166 0x0001000100010001ULL));
167 }
168
169 18490663 static av_always_inline int fetch_diagonal_mv(const H264Context *h, H264SliceContext *sl,
170 const int16_t **C,
171 int i, int list, int part_width)
172 {
173 18490663 const int topright_ref = sl->ref_cache[list][i - 8 + part_width];
174
175 /* there is no consistent mapping of mvs to neighboring locations that will
176 * make mbaff happy, so we can't move all this logic to fill_caches */
177
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 18490663 if (FRAME_MBAFF(h)) {
178 #define SET_DIAG_MV(MV_OP, REF_OP, XY, Y4) \
179 const int xy = XY, y4 = Y4; \
180 const int mb_type = mb_types[xy + (y4 >> 2) * h->mb_stride]; \
181 if (!USES_LIST(mb_type, list)) \
182 return LIST_NOT_USED; \
183 mv = h->cur_pic_ptr->motion_val[list][h->mb2b_xy[xy] + 3 + y4 * h->b_stride]; \
184 sl->mv_cache[list][scan8[0] - 2][0] = mv[0]; \
185 sl->mv_cache[list][scan8[0] - 2][1] = mv[1] MV_OP; \
186 return h->cur_pic_ptr->ref_index[list][4 * xy + 1 + (y4 & ~1)] REF_OP;
187
188
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 2973192 if (topright_ref == PART_NOT_AVAILABLE
189
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 1302924 && i >= scan8[0] + 8 && (i & 7) == 4
190
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 199070 && sl->ref_cache[list][scan8[0] - 1] != PART_NOT_AVAILABLE) {
191 190894 const uint32_t *mb_types = h->cur_pic_ptr->mb_type;
192 const int16_t *mv;
193 190894 AV_ZERO32(sl->mv_cache[list][scan8[0] - 2]);
194 190894 *C = sl->mv_cache[list][scan8[0] - 2];
195
196
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 190894 if (!MB_FIELD(sl) && IS_INTERLACED(sl->left_type[0])) {
197
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 26751 SET_DIAG_MV(* 2, >> 1, sl->left_mb_xy[0] + h->mb_stride,
198 (sl->mb_y & 1) * 2 + (i >> 5));
199 }
200
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 164143 if (MB_FIELD(sl) && !IS_INTERLACED(sl->left_type[0])) {
201 // left shift will turn LIST_NOT_USED into PART_NOT_AVAILABLE, but that's OK.
202
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 36130 SET_DIAG_MV(/ 2, *2, sl->left_mb_xy[i >= 36], ((i >> 2)) & 3);
203 }
204 }
205 #undef SET_DIAG_MV
206 }
207
208
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 18427782 if (topright_ref != PART_NOT_AVAILABLE) {
209 11759242 *C = sl->mv_cache[list][i - 8 + part_width];
210 11759242 return topright_ref;
211 } else {
212 ff_tlog(h->avctx, "topright MV not available\n");
213
214 6668540 *C = sl->mv_cache[list][i - 8 - 1];
215 6668540 return sl->ref_cache[list][i - 8 - 1];
216 }
217 }
218
219 /**
220 * Get the predicted MV.
221 * @param n the block index
222 * @param part_width the width of the partition (4, 8,16) -> (1, 2, 4)
223 * @param mx the x component of the predicted motion vector
224 * @param my the y component of the predicted motion vector
225 */
226 17838109 static av_always_inline void pred_motion(const H264Context *const h,
227 H264SliceContext *sl,
228 int n,
229 int part_width, int list, int ref,
230 int *const mx, int *const my)
231 {
232 17838109 const int index8 = scan8[n];
233 17838109 const int top_ref = sl->ref_cache[list][index8 - 8];
234 17838109 const int left_ref = sl->ref_cache[list][index8 - 1];
235 17838109 const int16_t *const A = sl->mv_cache[list][index8 - 1];
236 17838109 const int16_t *const B = sl->mv_cache[list][index8 - 8];
237 const int16_t *C;
238 int diagonal_ref, match_count;
239
240 av_assert2(part_width == 1 || part_width == 2 || part_width == 4);
241
242 /* mv_cache
243 * B . . A T T T T
244 * U . . L . . , .
245 * U . . L . . . .
246 * U . . L . . , .
247 * . . . L . . . .
248 */
249
250 17838109 diagonal_ref = fetch_diagonal_mv(h, sl, &C, index8, list, part_width);
251 17838109 match_count = (diagonal_ref == ref) + (top_ref == ref) + (left_ref == ref);
252 ff_tlog(h->avctx, "pred_motion match_count=%d\n", match_count);
253
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 17838109 if (match_count > 1) { //most common
254 13222639 *mx = mid_pred(A[0], B[0], C[0]);
255 13222639 *my = mid_pred(A[1], B[1], C[1]);
256
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 4615470 } else if (match_count == 1) {
257
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 3127859 if (left_ref == ref) {
258 1973227 *mx = A[0];
259 1973227 *my = A[1];
260
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 1154632 } else if (top_ref == ref) {
261 826346 *mx = B[0];
262 826346 *my = B[1];
263 } else {
264 328286 *mx = C[0];
265 328286 *my = C[1];
266 }
267 } else {
268
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 1487611 if (top_ref == PART_NOT_AVAILABLE &&
269
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 244561 diagonal_ref == PART_NOT_AVAILABLE &&
270 left_ref != PART_NOT_AVAILABLE) {
271 218993 *mx = A[0];
272 218993 *my = A[1];
273 } else {
274 1268618 *mx = mid_pred(A[0], B[0], C[0]);
275 1268618 *my = mid_pred(A[1], B[1], C[1]);
276 }
277 }
278
279 ff_tlog(h->avctx,
280 "pred_motion (%2d %2d %2d) (%2d %2d %2d) (%2d %2d %2d) -> (%2d %2d %2d) at %2d %2d %d list %d\n",
281 top_ref, B[0], B[1], diagonal_ref, C[0], C[1], left_ref,
282 A[0], A[1], ref, *mx, *my, sl->mb_x, sl->mb_y, n, list);
283 17838109 }
284
285 /**
286 * Get the directionally predicted 16x8 MV.
287 * @param n the block index
288 * @param mx the x component of the predicted motion vector
289 * @param my the y component of the predicted motion vector
290 */
291 1457384 static av_always_inline void pred_16x8_motion(const H264Context *const h,
292 H264SliceContext *sl,
293 int n, int list, int ref,
294 int *const mx, int *const my)
295 {
296
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 1457384 if (n == 0) {
297 727785 const int top_ref = sl->ref_cache[list][scan8[0] - 8];
298 727785 const int16_t *const B = sl->mv_cache[list][scan8[0] - 8];
299
300 ff_tlog(h->avctx, "pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d\n",
301 top_ref, B[0], B[1], sl->mb_x, sl->mb_y, n, list);
302
303
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 727785 if (top_ref == ref) {
304 423509 *mx = B[0];
305 423509 *my = B[1];
306 423509 return;
307 }
308 } else {
309 729599 const int left_ref = sl->ref_cache[list][scan8[8] - 1];
310 729599 const int16_t *const A = sl->mv_cache[list][scan8[8] - 1];
311
312 ff_tlog(h->avctx, "pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d\n",
313 left_ref, A[0], A[1], sl->mb_x, sl->mb_y, n, list);
314
315
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 729599 if (left_ref == ref) {
316 496210 *mx = A[0];
317 496210 *my = A[1];
318 496210 return;
319 }
320 }
321
322 //RARE
323 537665 pred_motion(h, sl, n, 4, list, ref, mx, my);
324 }
325
326 /**
327 * Get the directionally predicted 8x16 MV.
328 * @param n the block index
329 * @param mx the x component of the predicted motion vector
330 * @param my the y component of the predicted motion vector
331 */
332 1306374 static av_always_inline void pred_8x16_motion(const H264Context *const h,
333 H264SliceContext *sl,
334 int n, int list, int ref,
335 int *const mx, int *const my)
336 {
337
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 1306374 if (n == 0) {
338 653820 const int left_ref = sl->ref_cache[list][scan8[0] - 1];
339 653820 const int16_t *const A = sl->mv_cache[list][scan8[0] - 1];
340
341 ff_tlog(h->avctx, "pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d\n",
342 left_ref, A[0], A[1], sl->mb_x, sl->mb_y, n, list);
343
344
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 653820 if (left_ref == ref) {
345 420338 *mx = A[0];
346 420338 *my = A[1];
347 420338 return;
348 }
349 } else {
350 const int16_t *C;
351 int diagonal_ref;
352
353 652554 diagonal_ref = fetch_diagonal_mv(h, sl, &C, scan8[4], list, 2);
354
355 ff_tlog(h->avctx, "pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d\n",
356 diagonal_ref, C[0], C[1], sl->mb_x, sl->mb_y, n, list);
357
358
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 652554 if (diagonal_ref == ref) {
359 387198 *mx = C[0];
360 387198 *my = C[1];
361 387198 return;
362 }
363 }
364
365 //RARE
366 498838 pred_motion(h, sl, n, 2, list, ref, mx, my);
367 }
368
369 #define FIX_MV_MBAFF(type, refn, mvn, idx) \
370 if (FRAME_MBAFF(h)) { \
371 if (MB_FIELD(sl)) { \
372 if (!IS_INTERLACED(type)) { \
373 refn <<= 1; \
374 AV_COPY32(mvbuf[idx], mvn); \
375 mvbuf[idx][1] /= 2; \
376 mvn = mvbuf[idx]; \
377 } \
378 } else { \
379 if (IS_INTERLACED(type)) { \
380 refn >>= 1; \
381 AV_COPY32(mvbuf[idx], mvn); \
382 mvbuf[idx][1] *= 2; \
383 mvn = mvbuf[idx]; \
384 } \
385 } \
386 }
387
388 1940859 static av_always_inline void pred_pskip_motion(const H264Context *const h,
389 H264SliceContext *sl)
390 {
391 DECLARE_ALIGNED(4, static const int16_t, zeromv)[2] = { 0 };
392 DECLARE_ALIGNED(4, int16_t, mvbuf)[3][2];
393 1940859 int8_t *ref = h->cur_pic.ref_index[0];
394 1940859 int16_t(*mv)[2] = h->cur_pic.motion_val[0];
395 int top_ref, left_ref, diagonal_ref, match_count, mx, my;
396 const int16_t *A, *B, *C;
397 1940859 int b_stride = h->b_stride;
398
399 1940859 fill_rectangle(&sl->ref_cache[0][scan8[0]], 4, 4, 8, 0, 1);
400
401 /* To avoid doing an entire fill_decode_caches, we inline the relevant
402 * parts here.
403 * FIXME: this is a partial duplicate of the logic in fill_decode_caches,
404 * but it's faster this way. Is there a way to avoid this duplication?
405 */
406
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 1940859 if (USES_LIST(sl->left_type[LTOP], 0)) {
407 1837591 left_ref = ref[4 * sl->left_mb_xy[LTOP] + 1 + (sl->left_block[0] & ~1)];
408 1837591 A = mv[h->mb2b_xy[sl->left_mb_xy[LTOP]] + 3 + b_stride * sl->left_block[0]];
409
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 1837591 FIX_MV_MBAFF(sl->left_type[LTOP], left_ref, A, 0);
410
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 1837591 if (!(left_ref | AV_RN32A(A)))
411 1477124 goto zeromv;
412
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 103268 } else if (sl->left_type[LTOP]) {
413 41511 left_ref = LIST_NOT_USED;
414 41511 A = zeromv;
415 } else {
416 61757 goto zeromv;
417 }
418
419
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 401978 if (USES_LIST(sl->top_type, 0)) {
420 368589 top_ref = ref[4 * sl->top_mb_xy + 2];
421 368589 B = mv[h->mb2b_xy[sl->top_mb_xy] + 3 * b_stride];
422
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✓ Branch 7 taken 16704 times.
 368589 FIX_MV_MBAFF(sl->top_type, top_ref, B, 1);
423
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 368589 if (!(top_ref | AV_RN32A(B)))
424 68480 goto zeromv;
425
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 33389 } else if (sl->top_type) {
426 22225 top_ref = LIST_NOT_USED;
427 22225 B = zeromv;
428 } else {
429 11164 goto zeromv;
430 }
431
432 ff_tlog(h->avctx, "pred_pskip: (%d) (%d) at %2d %2d\n",
433 top_ref, left_ref, sl->mb_x, sl->mb_y);
434
435
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 322334 if (USES_LIST(sl->topright_type, 0)) {
436 277118 diagonal_ref = ref[4 * sl->topright_mb_xy + 2];
437 277118 C = mv[h->mb2b_xy[sl->topright_mb_xy] + 3 * b_stride];
438
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✓ Branch 2 taken 1882 times.
✓ Branch 3 taken 6192 times.
✓ Branch 4 taken 908 times.
✓ Branch 5 taken 974 times.
✓ Branch 6 taken 835 times.
✓ Branch 7 taken 5357 times.
 277118 FIX_MV_MBAFF(sl->topright_type, diagonal_ref, C, 2);
439
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✓ Branch 1 taken 23363 times.
 45216 } else if (sl->topright_type) {
440 21853 diagonal_ref = LIST_NOT_USED;
441 21853 C = zeromv;
442 } else {
443
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✓ Branch 1 taken 1185 times.
 23363 if (USES_LIST(sl->topleft_type, 0)) {
444 22178 diagonal_ref = ref[4 * sl->topleft_mb_xy + 1 +
445 22178 (sl->topleft_partition & 2)];
446 22178 C = mv[h->mb2b_xy[sl->topleft_mb_xy] + 3 + b_stride +
447 22178 (sl->topleft_partition & 2 * b_stride)];
448
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✓ Branch 2 taken 53 times.
✓ Branch 3 taken 8960 times.
✓ Branch 4 taken 9 times.
✓ Branch 5 taken 44 times.
✓ Branch 6 taken 478 times.
✓ Branch 7 taken 8482 times.
 22178 FIX_MV_MBAFF(sl->topleft_type, diagonal_ref, C, 2);
449
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✗ Branch 1 not taken.
 1185 } else if (sl->topleft_type) {
450 1185 diagonal_ref = LIST_NOT_USED;
451 1185 C = zeromv;
452 } else {
453 ✗ diagonal_ref = PART_NOT_AVAILABLE;
454 ✗ C = zeromv;
455 }
456 }
457
458 322334 match_count = !diagonal_ref + !top_ref + !left_ref;
459 ff_tlog(h->avctx, "pred_pskip_motion match_count=%d\n", match_count);
460
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 322334 if (match_count > 1) {
461 277237 mx = mid_pred(A[0], B[0], C[0]);
462 277237 my = mid_pred(A[1], B[1], C[1]);
463
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 45097 } else if (match_count == 1) {
464
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✓ Branch 1 taken 19906 times.
 38474 if (!left_ref) {
465 18568 mx = A[0];
466 18568 my = A[1];
467
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✓ Branch 1 taken 11357 times.
 19906 } else if (!top_ref) {
468 8549 mx = B[0];
469 8549 my = B[1];
470 } else {
471 11357 mx = C[0];
472 11357 my = C[1];
473 }
474 } else {
475 6623 mx = mid_pred(A[0], B[0], C[0]);
476 6623 my = mid_pred(A[1], B[1], C[1]);
477 }
478
479 322334 fill_rectangle(sl->mv_cache[0][scan8[0]], 4, 4, 8, pack16to32(mx, my), 4);
480 322334 return;
481
482 1618525 zeromv:
483 1618525 fill_rectangle(sl->mv_cache[0][scan8[0]], 4, 4, 8, 0, 4);
484 1618525 return;
485 }
486
487 15422255 static void fill_decode_neighbors(const H264Context *h, H264SliceContext *sl, int mb_type)
488 {
489 15422255 const int mb_xy = sl->mb_xy;
490 int topleft_xy, top_xy, topright_xy, left_xy[LEFT_MBS];
491 static const uint8_t left_block_options[4][32] = {
492 { 0, 1, 2, 3, 7, 10, 8, 11, 3 + 0 * 4, 3 + 1 * 4, 3 + 2 * 4, 3 + 3 * 4, 1 + 4 * 4, 1 + 8 * 4, 1 + 5 * 4, 1 + 9 * 4 },
493 { 2, 2, 3, 3, 8, 11, 8, 11, 3 + 2 * 4, 3 + 2 * 4, 3 + 3 * 4, 3 + 3 * 4, 1 + 5 * 4, 1 + 9 * 4, 1 + 5 * 4, 1 + 9 * 4 },
494 { 0, 0, 1, 1, 7, 10, 7, 10, 3 + 0 * 4, 3 + 0 * 4, 3 + 1 * 4, 3 + 1 * 4, 1 + 4 * 4, 1 + 8 * 4, 1 + 4 * 4, 1 + 8 * 4 },
495 { 0, 2, 0, 2, 7, 10, 7, 10, 3 + 0 * 4, 3 + 2 * 4, 3 + 0 * 4, 3 + 2 * 4, 1 + 4 * 4, 1 + 8 * 4, 1 + 4 * 4, 1 + 8 * 4 }
496 };
497
498 15422255 sl->topleft_partition = -1;
499
500 15422255 top_xy = mb_xy - (h->mb_stride << MB_FIELD(sl));
501
502 /* Wow, what a mess, why didn't they simplify the interlacing & intra
503 * stuff, I can't imagine that these complex rules are worth it. */
504
505 15422255 topleft_xy = top_xy - 1;
506 15422255 topright_xy = top_xy + 1;
507 15422255 left_xy[LBOT] = left_xy[LTOP] = mb_xy - 1;
508 15422255 sl->left_block = left_block_options[0];
509
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 15422255 if (FRAME_MBAFF(h)) {
510 2305483 const int left_mb_field_flag = IS_INTERLACED(h->cur_pic.mb_type[mb_xy - 1]);
511 2305483 const int curr_mb_field_flag = IS_INTERLACED(mb_type);
512
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 2305483 if (sl->mb_y & 1) {
513
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 1152635 if (left_mb_field_flag != curr_mb_field_flag) {
514 263872 left_xy[LBOT] = left_xy[LTOP] = mb_xy - h->mb_stride - 1;
515
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 263872 if (curr_mb_field_flag) {
516 136062 left_xy[LBOT] += h->mb_stride;
517 136062 sl->left_block = left_block_options[3];
518 } else {
519 127810 topleft_xy += h->mb_stride;
520 /* take top left mv from the middle of the mb, as opposed
521 * to all other modes which use the bottom right partition */
522 127810 sl->topleft_partition = 0;
523 127810 sl->left_block = left_block_options[1];
524 }
525 }
526 } else {
527
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 1152848 if (curr_mb_field_flag) {
528 327608 topleft_xy += h->mb_stride & (((h->cur_pic.mb_type[top_xy - 1] >> 7) & 1) - 1);
529 327608 topright_xy += h->mb_stride & (((h->cur_pic.mb_type[top_xy + 1] >> 7) & 1) - 1);
530 327608 top_xy += h->mb_stride & (((h->cur_pic.mb_type[top_xy] >> 7) & 1) - 1);
531 }
532
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 1152848 if (left_mb_field_flag != curr_mb_field_flag) {
533
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 264042 if (curr_mb_field_flag) {
534 136032 left_xy[LBOT] += h->mb_stride;
535 136032 sl->left_block = left_block_options[3];
536 } else {
537 128010 sl->left_block = left_block_options[2];
538 }
539 }
540 }
541 }
542
543 15422255 sl->topleft_mb_xy = topleft_xy;
544 15422255 sl->top_mb_xy = top_xy;
545 15422255 sl->topright_mb_xy = topright_xy;
546 15422255 sl->left_mb_xy[LTOP] = left_xy[LTOP];
547 15422255 sl->left_mb_xy[LBOT] = left_xy[LBOT];
548 //FIXME do we need all in the context?
549
550 15422255 sl->topleft_type = h->cur_pic.mb_type[topleft_xy];
551 15422255 sl->top_type = h->cur_pic.mb_type[top_xy];
552 15422255 sl->topright_type = h->cur_pic.mb_type[topright_xy];
553 15422255 sl->left_type[LTOP] = h->cur_pic.mb_type[left_xy[LTOP]];
554 15422255 sl->left_type[LBOT] = h->cur_pic.mb_type[left_xy[LBOT]];
555
556 if (FMO) {
557 if (h->slice_table[topleft_xy] != sl->slice_num)
558 sl->topleft_type = 0;
559 if (h->slice_table[top_xy] != sl->slice_num)
560 sl->top_type = 0;
561 if (h->slice_table[left_xy[LTOP]] != sl->slice_num)
562 sl->left_type[LTOP] = sl->left_type[LBOT] = 0;
563 } else {
564
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 15422255 if (h->slice_table[topleft_xy] != sl->slice_num) {
565 1569611 sl->topleft_type = 0;
566
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 1569611 if (h->slice_table[top_xy] != sl->slice_num)
567 1174958 sl->top_type = 0;
568
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 1569611 if (h->slice_table[left_xy[LTOP]] != sl->slice_num)
569 432810 sl->left_type[LTOP] = sl->left_type[LBOT] = 0;
570 }
571 }
572
2/2
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 15422255 if (h->slice_table[topright_xy] != sl->slice_num)
573 2371836 sl->topright_type = 0;
574 15422255 }
575
576 13475737 static void fill_decode_caches(const H264Context *h, H264SliceContext *sl, int mb_type)
577 {
578 int topleft_xy, top_xy, topright_xy, left_xy[LEFT_MBS];
579 int topleft_type, top_type, topright_type, left_type[LEFT_MBS];
580 13475737 const uint8_t *left_block = sl->left_block;
581 int i;
582 uint8_t *nnz;
583 uint8_t *nnz_cache;
584
585 13475737 topleft_xy = sl->topleft_mb_xy;
586 13475737 top_xy = sl->top_mb_xy;
587 13475737 topright_xy = sl->topright_mb_xy;
588 13475737 left_xy[LTOP] = sl->left_mb_xy[LTOP];
589 13475737 left_xy[LBOT] = sl->left_mb_xy[LBOT];
590 13475737 topleft_type = sl->topleft_type;
591 13475737 top_type = sl->top_type;
592 13475737 topright_type = sl->topright_type;
593 13475737 left_type[LTOP] = sl->left_type[LTOP];
594 13475737 left_type[LBOT] = sl->left_type[LBOT];
595
596
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 13475737 if (!IS_SKIP(mb_type)) {
597
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 11057994 if (IS_INTRA(mb_type)) {
598
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 4160935 int type_mask = h->ps.pps->constrained_intra_pred ? IS_INTRA(-1) : -1;
599 4160935 sl->topleft_samples_available =
600 4160935 sl->top_samples_available =
601 4160935 sl->left_samples_available = 0xFFFF;
602 4160935 sl->topright_samples_available = 0xEEEA;
603
604
2/2
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✓ Branch 1 taken 3857688 times.
 4160935 if (!(top_type & type_mask)) {
605 303247 sl->topleft_samples_available = 0xB3FF;
606 303247 sl->top_samples_available = 0x33FF;
607 303247 sl->topright_samples_available = 0x26EA;
608 }
609
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 4160935 if (IS_INTERLACED(mb_type) != IS_INTERLACED(left_type[LTOP])) {
610
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 219749 if (IS_INTERLACED(mb_type)) {
611
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 114304 if (!(left_type[LTOP] & type_mask)) {
612 16731 sl->topleft_samples_available &= 0xDFFF;
613 16731 sl->left_samples_available &= 0x5FFF;
614 }
615
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 114304 if (!(left_type[LBOT] & type_mask)) {
616 16739 sl->topleft_samples_available &= 0xFF5F;
617 16739 sl->left_samples_available &= 0xFF5F;
618 }
619 } else {
620 105445 int left_typei = h->cur_pic.mb_type[left_xy[LTOP] + h->mb_stride];
621
622 av_assert2(left_xy[LTOP] == left_xy[LBOT]);
623
4/4
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✓ Branch 3 taken 105373 times.
 105445 if (!((left_typei & type_mask) && (left_type[LTOP] & type_mask))) {
624 72 sl->topleft_samples_available &= 0xDF5F;
625 72 sl->left_samples_available &= 0x5F5F;
626 }
627 }
628 } else {
629
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✓ Branch 1 taken 3871244 times.
 3941186 if (!(left_type[LTOP] & type_mask)) {
630 69942 sl->topleft_samples_available &= 0xDF5F;
631 69942 sl->left_samples_available &= 0x5F5F;
632 }
633 }
634
635
2/2
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 4160935 if (!(topleft_type & type_mask))
636 380034 sl->topleft_samples_available &= 0x7FFF;
637
638
2/2
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 4160935 if (!(topright_type & type_mask))
639 776733 sl->topright_samples_available &= 0xFBFF;
640
641
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 4160935 if (IS_INTRA4x4(mb_type)) {
642
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 3084493 if (IS_INTRA4x4(top_type)) {
643 2310175 AV_COPY32(sl->intra4x4_pred_mode_cache + 4 + 8 * 0, sl->intra4x4_pred_mode + h->mb2br_xy[top_xy]);
644 } else {
645 774318 sl->intra4x4_pred_mode_cache[4 + 8 * 0] =
646 774318 sl->intra4x4_pred_mode_cache[5 + 8 * 0] =
647 774318 sl->intra4x4_pred_mode_cache[6 + 8 * 0] =
648
2/2
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 774318 sl->intra4x4_pred_mode_cache[7 + 8 * 0] = 2 - 3 * !(top_type & type_mask);
649 }
650
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 9253479 for (i = 0; i < 2; i++) {
651
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 6168986 if (IS_INTRA4x4(left_type[LEFT(i)])) {
652 4949584 int8_t *mode = sl->intra4x4_pred_mode + h->mb2br_xy[left_xy[LEFT(i)]];
653 4949584 sl->intra4x4_pred_mode_cache[3 + 8 * 1 + 2 * 8 * i] = mode[6 - left_block[0 + 2 * i]];
654 4949584 sl->intra4x4_pred_mode_cache[3 + 8 * 2 + 2 * 8 * i] = mode[6 - left_block[1 + 2 * i]];
655 } else {
656 1219402 sl->intra4x4_pred_mode_cache[3 + 8 * 1 + 2 * 8 * i] =
657
2/2
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 1219402 sl->intra4x4_pred_mode_cache[3 + 8 * 2 + 2 * 8 * i] = 2 - 3 * !(left_type[LEFT(i)] & type_mask);
658 }
659 }
660 }
661 }
662
663 /*
664 * 0 . T T. T T T T
665 * 1 L . .L . . . .
666 * 2 L . .L . . . .
667 * 3 . T TL . . . .
668 * 4 L . .L . . . .
669 * 5 L . .. . . . .
670 */
671 /* 9.2.1: with data partitioning and constrained intra prediction, an
672 * inter neighbour must not contribute to nC for an intra macroblock.
673 * Step 7 would drop it from the (nA + nB + 1) >> 1 average entirely,
674 * but JM's predict_nnz() counts it as present with zero coefficients.
675 * FF_BUG_H264_DP_NNZ picks JM, and is autodetected in h264dec.c. */
676 11057994 int nnz_mask = -1;
677 11057994 int nnz_excluded = 64; // 64: unavailable, 0: present but empty
678
679
4/4
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✓ Branch 3 taken 2970 times.
 11057994 if (sl->data_partitioning && h->ps.pps->constrained_intra_pred &&
680
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 1828 IS_INTRA(mb_type)) {
681 380 nnz_mask = IS_INTRA(-1);
682
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✓ Branch 1 taken 82 times.
 380 if (h->workaround_bugs & FF_BUG_H264_DP_NNZ)
683 298 nnz_excluded = 0;
684 }
685
686 11057994 nnz_cache = sl->non_zero_count_cache;
687
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 11057994 if (top_type & nnz_mask) {
688 10174205 nnz = h->non_zero_count[top_xy];
689 10174205 AV_COPY32(&nnz_cache[4 + 8 * 0], &nnz[4 * 3]);
690
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 10174205 if (!h->chroma_y_shift) {
691 907099 AV_COPY32(&nnz_cache[4 + 8 * 5], &nnz[4 * 7]);
692 907099 AV_COPY32(&nnz_cache[4 + 8 * 10], &nnz[4 * 11]);
693 } else {
694 9267106 AV_COPY32(&nnz_cache[4 + 8 * 5], &nnz[4 * 5]);
695 9267106 AV_COPY32(&nnz_cache[4 + 8 * 10], &nnz[4 * 9]);
696 }
697 } else {
698
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 1061027 uint32_t top_empty = CABAC(h) && !IS_INTRA(mb_type) ? 0 :
699
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 177421 top_type ? nnz_excluded * 0x01010101u : 0x40404040;
700 883789 AV_WN32A(&nnz_cache[4 + 8 * 0], top_empty);
701 883789 AV_WN32A(&nnz_cache[4 + 8 * 5], top_empty);
702 883789 AV_WN32A(&nnz_cache[4 + 8 * 10], top_empty);
703 }
704
705
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 33173982 for (i = 0; i < 2; i++) {
706
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 22115988 if (left_type[LEFT(i)] & nnz_mask) {
707 21477742 nnz = h->non_zero_count[left_xy[LEFT(i)]];
708 21477742 nnz_cache[3 + 8 * 1 + 2 * 8 * i] = nnz[left_block[8 + 0 + 2 * i]];
709 21477742 nnz_cache[3 + 8 * 2 + 2 * 8 * i] = nnz[left_block[8 + 1 + 2 * i]];
710
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 21477742 if (CHROMA444(h)) {
711 295798 nnz_cache[3 + 8 * 6 + 2 * 8 * i] = nnz[left_block[8 + 0 + 2 * i] + 4 * 4];
712 295798 nnz_cache[3 + 8 * 7 + 2 * 8 * i] = nnz[left_block[8 + 1 + 2 * i] + 4 * 4];
713 295798 nnz_cache[3 + 8 * 11 + 2 * 8 * i] = nnz[left_block[8 + 0 + 2 * i] + 8 * 4];
714 295798 nnz_cache[3 + 8 * 12 + 2 * 8 * i] = nnz[left_block[8 + 1 + 2 * i] + 8 * 4];
715
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✓ Branch 1 taken 19562756 times.
 21181944 } else if (CHROMA422(h)) {
716 1619188 nnz_cache[3 + 8 * 6 + 2 * 8 * i] = nnz[left_block[8 + 0 + 2 * i] - 2 + 4 * 4];
717 1619188 nnz_cache[3 + 8 * 7 + 2 * 8 * i] = nnz[left_block[8 + 1 + 2 * i] - 2 + 4 * 4];
718 1619188 nnz_cache[3 + 8 * 11 + 2 * 8 * i] = nnz[left_block[8 + 0 + 2 * i] - 2 + 8 * 4];
719 1619188 nnz_cache[3 + 8 * 12 + 2 * 8 * i] = nnz[left_block[8 + 1 + 2 * i] - 2 + 8 * 4];
720 } else {
721 19562756 nnz_cache[3 + 8 * 6 + 8 * i] = nnz[left_block[8 + 4 + 2 * i]];
722 19562756 nnz_cache[3 + 8 * 11 + 8 * i] = nnz[left_block[8 + 5 + 2 * i]];
723 }
724 } else {
725
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 743634 int empty = CABAC(h) && !IS_INTRA(mb_type) ? 0 :
726
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✓ Branch 1 taken 366344 times.
 366764 left_type[LEFT(i)] ? nnz_excluded : 64;
727 638246 nnz_cache[3 + 8 * 1 + 2 * 8 * i] =
728 638246 nnz_cache[3 + 8 * 2 + 2 * 8 * i] =
729 638246 nnz_cache[3 + 8 * 6 + 2 * 8 * i] =
730 638246 nnz_cache[3 + 8 * 7 + 2 * 8 * i] =
731 638246 nnz_cache[3 + 8 * 11 + 2 * 8 * i] =
732 638246 nnz_cache[3 + 8 * 12 + 2 * 8 * i] = empty;
733 }
734 }
735
736 if (CABAC(h)) {
737 // top_cbp
738
2/2
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 7347489 if (top_type)
739 6834881 sl->top_cbp = h->cbp_table[top_xy];
740 else
741
2/2
✓ Branch 0 taken 177238 times.
✓ Branch 1 taken 335370 times.
 512608 sl->top_cbp = IS_INTRA(mb_type) ? 0x7CF : 0x00F;
742 // left_cbp
743
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✓ Branch 1 taken 188435 times.
 7347489 if (left_type[LTOP]) {
744 7159054 sl->left_cbp = (h->cbp_table[left_xy[LTOP]] & 0x7F0) |
745 7159054 ((h->cbp_table[left_xy[LTOP]] >> (left_block[0] & (~1))) & 2) |
746 7159054 (((h->cbp_table[left_xy[LBOT]] >> (left_block[2] & (~1))) & 2) << 2);
747 } else {
748
2/2
✓ Branch 0 taken 52694 times.
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 188435 sl->left_cbp = IS_INTRA(mb_type) ? 0x7CF : 0x00F;
749 }
750 }
751 }
752
753
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 13475737 if (IS_INTER(mb_type) || (IS_DIRECT(mb_type) && sl->direct_spatial_mv_pred)) {
754 int list;
755 9250550 int b_stride = h->b_stride;
756
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 24043575 for (list = 0; list < sl->list_count; list++) {
757 14793025 int8_t *ref_cache = &sl->ref_cache[list][scan8[0]];
758 14793025 int8_t *ref = h->cur_pic.ref_index[list];
759 14793025 int16_t(*mv_cache)[2] = &sl->mv_cache[list][scan8[0]];
760 14793025 int16_t(*mv)[2] = h->cur_pic.motion_val[list];
761
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 14793025 if (!USES_LIST(mb_type, list))
762 1384547 continue;
763 av_assert2(!(IS_DIRECT(mb_type) && !sl->direct_spatial_mv_pred));
764
765
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 13408478 if (USES_LIST(top_type, list)) {
766 10824386 const int b_xy = h->mb2b_xy[top_xy] + 3 * b_stride;
767 10824386 AV_COPY128(mv_cache[0 - 1 * 8], mv[b_xy + 0]);
768 10824386 ref_cache[0 - 1 * 8] =
769 10824386 ref_cache[1 - 1 * 8] = ref[4 * top_xy + 2];
770 10824386 ref_cache[2 - 1 * 8] =
771 10824386 ref_cache[3 - 1 * 8] = ref[4 * top_xy + 3];
772 } else {
773 2584092 AV_ZERO128(mv_cache[0 - 1 * 8]);
774
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 2584092 AV_WN32A(&ref_cache[0 - 1 * 8],
775 ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE) & 0xFF) * 0x01010101u);
776 }
777
778
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 13408478 if (mb_type & (MB_TYPE_16x8 | MB_TYPE_8x8)) {
779
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 8517735 for (i = 0; i < 2; i++) {
780 5678490 int cache_idx = -1 + i * 2 * 8;
781
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 5678490 if (USES_LIST(left_type[LEFT(i)], list)) {
782 4857779 const int b_xy = h->mb2b_xy[left_xy[LEFT(i)]] + 3;
783 4857779 const int b8_xy = 4 * left_xy[LEFT(i)] + 1;
784 4857779 AV_COPY32(mv_cache[cache_idx],
785 mv[b_xy + b_stride * left_block[0 + i * 2]]);
786 4857779 AV_COPY32(mv_cache[cache_idx + 8],
787 mv[b_xy + b_stride * left_block[1 + i * 2]]);
788 4857779 ref_cache[cache_idx] = ref[b8_xy + (left_block[0 + i * 2] & ~1)];
789 4857779 ref_cache[cache_idx + 8] = ref[b8_xy + (left_block[1 + i * 2] & ~1)];
790 } else {
791 820711 AV_ZERO32(mv_cache[cache_idx]);
792 820711 AV_ZERO32(mv_cache[cache_idx + 8]);
793 820711 ref_cache[cache_idx] =
794
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 820711 ref_cache[cache_idx + 8] = (left_type[LEFT(i)]) ? LIST_NOT_USED
795 : PART_NOT_AVAILABLE;
796 }
797 }
798 } else {
799
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 10569233 if (USES_LIST(left_type[LTOP], list)) {
800 9069215 const int b_xy = h->mb2b_xy[left_xy[LTOP]] + 3;
801 9069215 const int b8_xy = 4 * left_xy[LTOP] + 1;
802 9069215 AV_COPY32(mv_cache[-1], mv[b_xy + b_stride * left_block[0]]);
803 9069215 ref_cache[-1] = ref[b8_xy + (left_block[0] & ~1)];
804 } else {
805 1500018 AV_ZERO32(mv_cache[-1]);
806
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 1500018 ref_cache[-1] = left_type[LTOP] ? LIST_NOT_USED
807 : PART_NOT_AVAILABLE;
808 }
809 }
810
811
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 13408478 if (USES_LIST(topright_type, list)) {
812 9958301 const int b_xy = h->mb2b_xy[topright_xy] + 3 * b_stride;
813 9958301 AV_COPY32(mv_cache[4 - 1 * 8], mv[b_xy]);
814 9958301 ref_cache[4 - 1 * 8] = ref[4 * topright_xy + 2];
815 } else {
816 3450177 AV_ZERO32(mv_cache[4 - 1 * 8]);
817
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 3450177 ref_cache[4 - 1 * 8] = topright_type ? LIST_NOT_USED
818 : PART_NOT_AVAILABLE;
819 }
820
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 13408478 if(ref_cache[2 - 1*8] < 0 || ref_cache[4 - 1 * 8] < 0) {
821
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 4174737 if (USES_LIST(topleft_type, list)) {
822 1877331 const int b_xy = h->mb2b_xy[topleft_xy] + 3 + b_stride +
823 1877331 (sl->topleft_partition & 2 * b_stride);
824 1877331 const int b8_xy = 4 * topleft_xy + 1 + (sl->topleft_partition & 2);
825 1877331 AV_COPY32(mv_cache[-1 - 1 * 8], mv[b_xy]);
826 1877331 ref_cache[-1 - 1 * 8] = ref[b8_xy];
827 } else {
828 2297406 AV_ZERO32(mv_cache[-1 - 1 * 8]);
829
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 2297406 ref_cache[-1 - 1 * 8] = topleft_type ? LIST_NOT_USED
830 : PART_NOT_AVAILABLE;
831 }
832 }
833
834
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 13408478 if ((mb_type & (MB_TYPE_SKIP | MB_TYPE_DIRECT2)) && !FRAME_MBAFF(h))
835 5370128 continue;
836
837
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 8038350 if (!(mb_type & (MB_TYPE_SKIP | MB_TYPE_DIRECT2))) {
838 7397166 uint8_t(*mvd_cache)[2] = &sl->mvd_cache[list][scan8[0]];
839 7397166 uint8_t(*mvd)[2] = sl->mvd_table[list];
840 7397166 ref_cache[2 + 8 * 0] =
841 7397166 ref_cache[2 + 8 * 2] = PART_NOT_AVAILABLE;
842 7397166 AV_ZERO32(mv_cache[2 + 8 * 0]);
843 7397166 AV_ZERO32(mv_cache[2 + 8 * 2]);
844
845 if (CABAC(h)) {
846
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 4975339 if (USES_LIST(top_type, list)) {
847 3986551 const int b_xy = h->mb2br_xy[top_xy];
848 3986551 AV_COPY64(mvd_cache[0 - 1 * 8], mvd[b_xy + 0]);
849 } else {
850 988788 AV_ZERO64(mvd_cache[0 - 1 * 8]);
851 }
852
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 4975339 if (USES_LIST(left_type[LTOP], list)) {
853 4210908 const int b_xy = h->mb2br_xy[left_xy[LTOP]] + 6;
854 4210908 AV_COPY16(mvd_cache[-1 + 0 * 8], mvd[b_xy - left_block[0]]);
855 4210908 AV_COPY16(mvd_cache[-1 + 1 * 8], mvd[b_xy - left_block[1]]);
856 } else {
857 764431 AV_ZERO16(mvd_cache[-1 + 0 * 8]);
858 764431 AV_ZERO16(mvd_cache[-1 + 1 * 8]);
859 }
860
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 4975339 if (USES_LIST(left_type[LBOT], list)) {
861 4210383 const int b_xy = h->mb2br_xy[left_xy[LBOT]] + 6;
862 4210383 AV_COPY16(mvd_cache[-1 + 2 * 8], mvd[b_xy - left_block[2]]);
863 4210383 AV_COPY16(mvd_cache[-1 + 3 * 8], mvd[b_xy - left_block[3]]);
864 } else {
865 764956 AV_ZERO16(mvd_cache[-1 + 2 * 8]);
866 764956 AV_ZERO16(mvd_cache[-1 + 3 * 8]);
867 }
868 4975339 AV_ZERO16(mvd_cache[2 + 8 * 0]);
869 4975339 AV_ZERO16(mvd_cache[2 + 8 * 2]);
870
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 4975339 if (sl->slice_type_nos == AV_PICTURE_TYPE_B) {
871 2737643 uint8_t *direct_cache = &sl->direct_cache[scan8[0]];
872 2737643 uint8_t *direct_table = h->direct_table;
873 2737643 fill_rectangle(direct_cache, 4, 4, 8, MB_TYPE_16x16 >> 1, 1);
874
875
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 2737643 if (IS_DIRECT(top_type)) {
876 463298 AV_WN32A(&direct_cache[-1 * 8],
877 0x01010101u * (MB_TYPE_DIRECT2 >> 1));
878
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 2274345 } else if (IS_8X8(top_type)) {
879 617527 int b8_xy = 4 * top_xy;
880 617527 direct_cache[0 - 1 * 8] = direct_table[b8_xy + 2];
881 617527 direct_cache[2 - 1 * 8] = direct_table[b8_xy + 3];
882 } else {
883 1656818 AV_WN32A(&direct_cache[-1 * 8],
884 0x01010101 * (MB_TYPE_16x16 >> 1));
885 }
886
887
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 2737643 if (IS_DIRECT(left_type[LTOP]))
888 453982 direct_cache[-1 + 0 * 8] = MB_TYPE_DIRECT2 >> 1;
889
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 2283661 else if (IS_8X8(left_type[LTOP]))
890 653884 direct_cache[-1 + 0 * 8] = direct_table[4 * left_xy[LTOP] + 1 + (left_block[0] & ~1)];
891 else
892 1629777 direct_cache[-1 + 0 * 8] = MB_TYPE_16x16 >> 1;
893
894
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 2737643 if (IS_DIRECT(left_type[LBOT]))
895 453004 direct_cache[-1 + 2 * 8] = MB_TYPE_DIRECT2 >> 1;
896
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 2284639 else if (IS_8X8(left_type[LBOT]))
897 656052 direct_cache[-1 + 2 * 8] = direct_table[4 * left_xy[LBOT] + 1 + (left_block[2] & ~1)];
898 else
899 1628587 direct_cache[-1 + 2 * 8] = MB_TYPE_16x16 >> 1;
900 }
901 }
902 }
903
904 #define MAP_MVS \
905 MAP_F2F(scan8[0] - 1 - 1 * 8, topleft_type) \
906 MAP_F2F(scan8[0] + 0 - 1 * 8, top_type) \
907 MAP_F2F(scan8[0] + 1 - 1 * 8, top_type) \
908 MAP_F2F(scan8[0] + 2 - 1 * 8, top_type) \
909 MAP_F2F(scan8[0] + 3 - 1 * 8, top_type) \
910 MAP_F2F(scan8[0] + 4 - 1 * 8, topright_type) \
911 MAP_F2F(scan8[0] - 1 + 0 * 8, left_type[LTOP]) \
912 MAP_F2F(scan8[0] - 1 + 1 * 8, left_type[LTOP]) \
913 MAP_F2F(scan8[0] - 1 + 2 * 8, left_type[LBOT]) \
914 MAP_F2F(scan8[0] - 1 + 3 * 8, left_type[LBOT])
915
916
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 8038350 if (FRAME_MBAFF(h)) {
917
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 1797545 if (MB_FIELD(sl)) {
918
919 #define MAP_F2F(idx, mb_type) \
920 if (!IS_INTERLACED(mb_type) && sl->ref_cache[list][idx] >= 0) { \
921 sl->ref_cache[list][idx] *= 2; \
922 sl->mv_cache[list][idx][1] /= 2; \
923 sl->mvd_cache[list][idx][1] >>= 1; \
924 }
925
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 593355 MAP_MVS
927 } else {
928
929 #undef MAP_F2F
930 #define MAP_F2F(idx, mb_type) \
931 if (IS_INTERLACED(mb_type) && sl->ref_cache[list][idx] >= 0) { \
932 sl->ref_cache[list][idx] >>= 1; \
933 sl->mv_cache[list][idx][1] *= 2; \
934 sl->mvd_cache[list][idx][1] <<= 1; \
935 }
936
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 1204190 MAP_MVS
938 #undef MAP_F2F
939 }
940 }
941 }
942 }
943
944 13475737 sl->neighbor_transform_size = !!IS_8x8DCT(top_type) + !!IS_8x8DCT(left_type[LTOP]);
945 13475737 }
946
947 /**
948 * decodes a P_SKIP or B_SKIP macroblock
949 */
950 4495121 av_unused static void decode_mb_skip(const H264Context *h, H264SliceContext *sl)
951 {
952 4495121 const int mb_xy = sl->mb_xy;
953 4495121 int mb_type = 0;
954
955 4495121 memset(h->non_zero_count[mb_xy], 0, 48);
956
957
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 4495121 if (MB_FIELD(sl))
958 1560881 mb_type |= MB_TYPE_INTERLACED;
959
960
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 4495121 if (sl->slice_type_nos == AV_PICTURE_TYPE_B) {
961 // just for fill_caches. pred_direct_motion will set the real mb_type
962 2554262 mb_type |= MB_TYPE_L0L1 | MB_TYPE_DIRECT2 | MB_TYPE_SKIP;
963
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 2554262 if (sl->direct_spatial_mv_pred) {
964 2417743 fill_decode_neighbors(h, sl, mb_type);
965 2417743 fill_decode_caches(h, sl, mb_type); //FIXME check what is needed and what not ...
966 }
967 2554262 ff_h264_pred_direct_motion(h, sl, &mb_type);
968 2554262 mb_type |= MB_TYPE_SKIP;
969 } else {
970 1940859 mb_type |= MB_TYPE_16x16 | MB_TYPE_P0L0 | MB_TYPE_P1L0 | MB_TYPE_SKIP;
971
972 1940859 fill_decode_neighbors(h, sl, mb_type);
973 1940859 pred_pskip_motion(h, sl);
974 }
975
976 4495121 write_back_motion(h, sl, mb_type);
977 4495121 h->cur_pic.mb_type[mb_xy] = mb_type;
978 4495121 h->cur_pic.qscale_table[mb_xy] = sl->qscale;
979 4495121 h->slice_table[mb_xy] = sl->slice_num;
980 4495121 sl->prev_mb_skipped = 1;
981 4495121 }
982
983 #endif /* AVCODEC_H264_MVPRED_H */
984