FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/h264_mvpred.h
Date: 2022-07-05 19:52:29
Exec Total Coverage
Lines: 413 415 99.5%
Branches: 347 348 99.7%

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 "libavutil/avassert.h"
34 #include "libavutil/mem_internal.h"
35
36
37 17894377 static av_always_inline int fetch_diagonal_mv(const H264Context *h, H264SliceContext *sl,
38 const int16_t **C,
39 int i, int list, int part_width)
40 {
41 17894377 const int topright_ref = sl->ref_cache[list][i - 8 + part_width];
42
43 /* there is no consistent mapping of mvs to neighboring locations that will
44 * make mbaff happy, so we can't move all this logic to fill_caches */
45
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17894377 if (FRAME_MBAFF(h)) {
46 #define SET_DIAG_MV(MV_OP, REF_OP, XY, Y4) \
47 const int xy = XY, y4 = Y4; \
48 const int mb_type = mb_types[xy + (y4 >> 2) * h->mb_stride]; \
49 if (!USES_LIST(mb_type, list)) \
50 return LIST_NOT_USED; \
51 mv = h->cur_pic_ptr->motion_val[list][h->mb2b_xy[xy] + 3 + y4 * h->b_stride]; \
52 sl->mv_cache[list][scan8[0] - 2][0] = mv[0]; \
53 sl->mv_cache[list][scan8[0] - 2][1] = mv[1] MV_OP; \
54 return h->cur_pic_ptr->ref_index[list][4 * xy + 1 + (y4 & ~1)] REF_OP;
55
56
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2891570 if (topright_ref == PART_NOT_AVAILABLE
57
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1265392 && i >= scan8[0] + 8 && (i & 7) == 4
58
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196840 && sl->ref_cache[list][scan8[0] - 1] != PART_NOT_AVAILABLE) {
59 188678 const uint32_t *mb_types = h->cur_pic_ptr->mb_type;
60 const int16_t *mv;
61 188678 AV_ZERO32(sl->mv_cache[list][scan8[0] - 2]);
62 188678 *C = sl->mv_cache[list][scan8[0] - 2];
63
64
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188678 if (!MB_FIELD(sl) && IS_INTERLACED(sl->left_type[0])) {
65
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26640 SET_DIAG_MV(* 2, >> 1, sl->left_mb_xy[0] + h->mb_stride,
66 (sl->mb_y & 1) * 2 + (i >> 5));
67 }
68
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162038 if (MB_FIELD(sl) && !IS_INTERLACED(sl->left_type[0])) {
69 // left shift will turn LIST_NOT_USED into PART_NOT_AVAILABLE, but that's OK.
70
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35582 SET_DIAG_MV(/ 2, *2, sl->left_mb_xy[i >= 36], ((i >> 2)) & 3);
71 }
72 }
73 #undef SET_DIAG_MV
74 }
75
76
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17832155 if (topright_ref != PART_NOT_AVAILABLE) {
77 11286005 *C = sl->mv_cache[list][i - 8 + part_width];
78 11286005 return topright_ref;
79 } else {
80 ff_tlog(h->avctx, "topright MV not available\n");
81
82 6546150 *C = sl->mv_cache[list][i - 8 - 1];
83 6546150 return sl->ref_cache[list][i - 8 - 1];
84 }
85 }
86
87 /**
88 * Get the predicted MV.
89 * @param n the block index
90 * @param part_width the width of the partition (4, 8,16) -> (1, 2, 4)
91 * @param mx the x component of the predicted motion vector
92 * @param my the y component of the predicted motion vector
93 */
94 17295192 static av_always_inline void pred_motion(const H264Context *const h,
95 H264SliceContext *sl,
96 int n,
97 int part_width, int list, int ref,
98 int *const mx, int *const my)
99 {
100 17295192 const int index8 = scan8[n];
101 17295192 const int top_ref = sl->ref_cache[list][index8 - 8];
102 17295192 const int left_ref = sl->ref_cache[list][index8 - 1];
103 17295192 const int16_t *const A = sl->mv_cache[list][index8 - 1];
104 17295192 const int16_t *const B = sl->mv_cache[list][index8 - 8];
105 const int16_t *C;
106 int diagonal_ref, match_count;
107
108 av_assert2(part_width == 1 || part_width == 2 || part_width == 4);
109
110 /* mv_cache
111 * B . . A T T T T
112 * U . . L . . , .
113 * U . . L . . . .
114 * U . . L . . , .
115 * . . . L . . . .
116 */
117
118 17295192 diagonal_ref = fetch_diagonal_mv(h, sl, &C, index8, list, part_width);
119 17295192 match_count = (diagonal_ref == ref) + (top_ref == ref) + (left_ref == ref);
120 ff_tlog(h->avctx, "pred_motion match_count=%d\n", match_count);
121
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17295192 if (match_count > 1) { //most common
122 12814394 *mx = mid_pred(A[0], B[0], C[0]);
123 12814394 *my = mid_pred(A[1], B[1], C[1]);
124
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4480798 } else if (match_count == 1) {
125
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3046707 if (left_ref == ref) {
126 1919942 *mx = A[0];
127 1919942 *my = A[1];
128
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1126765 } else if (top_ref == ref) {
129 809888 *mx = B[0];
130 809888 *my = B[1];
131 } else {
132 316877 *mx = C[0];
133 316877 *my = C[1];
134 }
135 } else {
136
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1434091 if (top_ref == PART_NOT_AVAILABLE &&
137
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233295 diagonal_ref == PART_NOT_AVAILABLE &&
138 left_ref != PART_NOT_AVAILABLE) {
139 208180 *mx = A[0];
140 208180 *my = A[1];
141 } else {
142 1225911 *mx = mid_pred(A[0], B[0], C[0]);
143 1225911 *my = mid_pred(A[1], B[1], C[1]);
144 }
145 }
146
147 ff_tlog(h->avctx,
148 "pred_motion (%2d %2d %2d) (%2d %2d %2d) (%2d %2d %2d) -> (%2d %2d %2d) at %2d %2d %d list %d\n",
149 top_ref, B[0], B[1], diagonal_ref, C[0], C[1], left_ref,
150 A[0], A[1], ref, *mx, *my, sl->mb_x, sl->mb_y, n, list);
151 17295192 }
152
153 /**
154 * Get the directionally predicted 16x8 MV.
155 * @param n the block index
156 * @param mx the x component of the predicted motion vector
157 * @param my the y component of the predicted motion vector
158 */
159 1354863 static av_always_inline void pred_16x8_motion(const H264Context *const h,
160 H264SliceContext *sl,
161 int n, int list, int ref,
162 int *const mx, int *const my)
163 {
164
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1354863 if (n == 0) {
165 676591 const int top_ref = sl->ref_cache[list][scan8[0] - 8];
166 676591 const int16_t *const B = sl->mv_cache[list][scan8[0] - 8];
167
168 ff_tlog(h->avctx, "pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d\n",
169 top_ref, B[0], B[1], sl->mb_x, sl->mb_y, n, list);
170
171
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676591 if (top_ref == ref) {
172 385094 *mx = B[0];
173 385094 *my = B[1];
174 385094 return;
175 }
176 } else {
177 678272 const int left_ref = sl->ref_cache[list][scan8[8] - 1];
178 678272 const int16_t *const A = sl->mv_cache[list][scan8[8] - 1];
179
180 ff_tlog(h->avctx, "pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d\n",
181 left_ref, A[0], A[1], sl->mb_x, sl->mb_y, n, list);
182
183
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678272 if (left_ref == ref) {
184 455794 *mx = A[0];
185 455794 *my = A[1];
186 455794 return;
187 }
188 }
189
190 //RARE
191 513975 pred_motion(h, sl, n, 4, list, ref, mx, my);
192 }
193
194 /**
195 * Get the directionally predicted 8x16 MV.
196 * @param n the block index
197 * @param mx the x component of the predicted motion vector
198 * @param my the y component of the predicted motion vector
199 */
200 1199687 static av_always_inline void pred_8x16_motion(const H264Context *const h,
201 H264SliceContext *sl,
202 int n, int list, int ref,
203 int *const mx, int *const my)
204 {
205
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1199687 if (n == 0) {
206 600502 const int left_ref = sl->ref_cache[list][scan8[0] - 1];
207 600502 const int16_t *const A = sl->mv_cache[list][scan8[0] - 1];
208
209 ff_tlog(h->avctx, "pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d\n",
210 left_ref, A[0], A[1], sl->mb_x, sl->mb_y, n, list);
211
212
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600502 if (left_ref == ref) {
213 376346 *mx = A[0];
214 376346 *my = A[1];
215 376346 return;
216 }
217 } else {
218 const int16_t *C;
219 int diagonal_ref;
220
221 599185 diagonal_ref = fetch_diagonal_mv(h, sl, &C, scan8[4], list, 2);
222
223 ff_tlog(h->avctx, "pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d\n",
224 diagonal_ref, C[0], C[1], sl->mb_x, sl->mb_y, n, list);
225
226
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599185 if (diagonal_ref == ref) {
227 343555 *mx = C[0];
228 343555 *my = C[1];
229 343555 return;
230 }
231 }
232
233 //RARE
234 479786 pred_motion(h, sl, n, 2, list, ref, mx, my);
235 }
236
237 #define FIX_MV_MBAFF(type, refn, mvn, idx) \
238 if (FRAME_MBAFF(h)) { \
239 if (MB_FIELD(sl)) { \
240 if (!IS_INTERLACED(type)) { \
241 refn <<= 1; \
242 AV_COPY32(mvbuf[idx], mvn); \
243 mvbuf[idx][1] /= 2; \
244 mvn = mvbuf[idx]; \
245 } \
246 } else { \
247 if (IS_INTERLACED(type)) { \
248 refn >>= 1; \
249 AV_COPY32(mvbuf[idx], mvn); \
250 mvbuf[idx][1] *= 2; \
251 mvn = mvbuf[idx]; \
252 } \
253 } \
254 }
255
256 1418210 static av_always_inline void pred_pskip_motion(const H264Context *const h,
257 H264SliceContext *sl)
258 {
259 DECLARE_ALIGNED(4, static const int16_t, zeromv)[2] = { 0 };
260 DECLARE_ALIGNED(4, int16_t, mvbuf)[3][2];
261 1418210 int8_t *ref = h->cur_pic.ref_index[0];
262 1418210 int16_t(*mv)[2] = h->cur_pic.motion_val[0];
263 int top_ref, left_ref, diagonal_ref, match_count, mx, my;
264 const int16_t *A, *B, *C;
265 1418210 int b_stride = h->b_stride;
266
267 1418210 fill_rectangle(&sl->ref_cache[0][scan8[0]], 4, 4, 8, 0, 1);
268
269 /* To avoid doing an entire fill_decode_caches, we inline the relevant
270 * parts here.
271 * FIXME: this is a partial duplicate of the logic in fill_decode_caches,
272 * but it's faster this way. Is there a way to avoid this duplication?
273 */
274
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1418210 if (USES_LIST(sl->left_type[LTOP], 0)) {
275 1339837 left_ref = ref[4 * sl->left_mb_xy[LTOP] + 1 + (sl->left_block[0] & ~1)];
276 1339837 A = mv[h->mb2b_xy[sl->left_mb_xy[LTOP]] + 3 + b_stride * sl->left_block[0]];
277
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1339837 FIX_MV_MBAFF(sl->left_type[LTOP], left_ref, A, 0);
278
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1339837 if (!(left_ref | AV_RN32A(A)))
279 1056766 goto zeromv;
280
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78373 } else if (sl->left_type[LTOP]) {
281 31610 left_ref = LIST_NOT_USED;
282 31610 A = zeromv;
283 } else {
284 46763 goto zeromv;
285 }
286
287
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314681 if (USES_LIST(sl->top_type, 0)) {
288 285670 top_ref = ref[4 * sl->top_mb_xy + 2];
289 285670 B = mv[h->mb2b_xy[sl->top_mb_xy] + 3 * b_stride];
290
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285670 FIX_MV_MBAFF(sl->top_type, top_ref, B, 1);
291
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285670 if (!(top_ref | AV_RN32A(B)))
292 47154 goto zeromv;
293
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29011 } else if (sl->top_type) {
294 19108 top_ref = LIST_NOT_USED;
295 19108 B = zeromv;
296 } else {
297 9903 goto zeromv;
298 }
299
300 ff_tlog(h->avctx, "pred_pskip: (%d) (%d) at %2d %2d\n",
301 top_ref, left_ref, sl->mb_x, sl->mb_y);
302
303
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257624 if (USES_LIST(sl->topright_type, 0)) {
304 218828 diagonal_ref = ref[4 * sl->topright_mb_xy + 2];
305 218828 C = mv[h->mb2b_xy[sl->topright_mb_xy] + 3 * b_stride];
306
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218828 FIX_MV_MBAFF(sl->topright_type, diagonal_ref, C, 2);
307
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38796 } else if (sl->topright_type) {
308 18827 diagonal_ref = LIST_NOT_USED;
309 18827 C = zeromv;
310 } else {
311
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19969 if (USES_LIST(sl->topleft_type, 0)) {
312 18982 diagonal_ref = ref[4 * sl->topleft_mb_xy + 1 +
313 18982 (sl->topleft_partition & 2)];
314 18982 C = mv[h->mb2b_xy[sl->topleft_mb_xy] + 3 + b_stride +
315 18982 (sl->topleft_partition & 2 * b_stride)];
316
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18982 FIX_MV_MBAFF(sl->topleft_type, diagonal_ref, C, 2);
317
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987 } else if (sl->topleft_type) {
318 987 diagonal_ref = LIST_NOT_USED;
319 987 C = zeromv;
320 } else {
321 diagonal_ref = PART_NOT_AVAILABLE;
322 C = zeromv;
323 }
324 }
325
326 257624 match_count = !diagonal_ref + !top_ref + !left_ref;
327 ff_tlog(h->avctx, "pred_pskip_motion match_count=%d\n", match_count);
328
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257624 if (match_count > 1) {
329 215323 mx = mid_pred(A[0], B[0], C[0]);
330 215323 my = mid_pred(A[1], B[1], C[1]);
331
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42301 } else if (match_count == 1) {
332
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36205 if (!left_ref) {
333 17583 mx = A[0];
334 17583 my = A[1];
335
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18622 } else if (!top_ref) {
336 8129 mx = B[0];
337 8129 my = B[1];
338 } else {
339 10493 mx = C[0];
340 10493 my = C[1];
341 }
342 } else {
343 6096 mx = mid_pred(A[0], B[0], C[0]);
344 6096 my = mid_pred(A[1], B[1], C[1]);
345 }
346
347 257624 fill_rectangle(sl->mv_cache[0][scan8[0]], 4, 4, 8, pack16to32(mx, my), 4);
348 257624 return;
349
350 1160586 zeromv:
351 1160586 fill_rectangle(sl->mv_cache[0][scan8[0]], 4, 4, 8, 0, 4);
352 1160586 return;
353 }
354
355 13615920 static void fill_decode_neighbors(const H264Context *h, H264SliceContext *sl, int mb_type)
356 {
357 13615920 const int mb_xy = sl->mb_xy;
358 int topleft_xy, top_xy, topright_xy, left_xy[LEFT_MBS];
359 static const uint8_t left_block_options[4][32] = {
360 { 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 },
361 { 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 },
362 { 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 },
363 { 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 }
364 };
365
366 13615920 sl->topleft_partition = -1;
367
368 13615920 top_xy = mb_xy - (h->mb_stride << MB_FIELD(sl));
369
370 /* Wow, what a mess, why didn't they simplify the interlacing & intra
371 * stuff, I can't imagine that these complex rules are worth it. */
372
373 13615920 topleft_xy = top_xy - 1;
374 13615920 topright_xy = top_xy + 1;
375 13615920 left_xy[LBOT] = left_xy[LTOP] = mb_xy - 1;
376 13615920 sl->left_block = left_block_options[0];
377
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13615920 if (FRAME_MBAFF(h)) {
378 2095408 const int left_mb_field_flag = IS_INTERLACED(h->cur_pic.mb_type[mb_xy - 1]);
379 2095408 const int curr_mb_field_flag = IS_INTERLACED(mb_type);
380
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2095408 if (sl->mb_y & 1) {
381
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1047592 if (left_mb_field_flag != curr_mb_field_flag) {
382 247902 left_xy[LBOT] = left_xy[LTOP] = mb_xy - h->mb_stride - 1;
383
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247902 if (curr_mb_field_flag) {
384 127965 left_xy[LBOT] += h->mb_stride;
385 127965 sl->left_block = left_block_options[3];
386 } else {
387 119937 topleft_xy += h->mb_stride;
388 /* take top left mv from the middle of the mb, as opposed
389 * to all other modes which use the bottom right partition */
390 119937 sl->topleft_partition = 0;
391 119937 sl->left_block = left_block_options[1];
392 }
393 }
394 } else {
395
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1047816 if (curr_mb_field_flag) {
396 305129 topleft_xy += h->mb_stride & (((h->cur_pic.mb_type[top_xy - 1] >> 7) & 1) - 1);
397 305129 topright_xy += h->mb_stride & (((h->cur_pic.mb_type[top_xy + 1] >> 7) & 1) - 1);
398 305129 top_xy += h->mb_stride & (((h->cur_pic.mb_type[top_xy] >> 7) & 1) - 1);
399 }
400
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1047816 if (left_mb_field_flag != curr_mb_field_flag) {
401
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248076 if (curr_mb_field_flag) {
402 127938 left_xy[LBOT] += h->mb_stride;
403 127938 sl->left_block = left_block_options[3];
404 } else {
405 120138 sl->left_block = left_block_options[2];
406 }
407 }
408 }
409 }
410
411 13615920 sl->topleft_mb_xy = topleft_xy;
412 13615920 sl->top_mb_xy = top_xy;
413 13615920 sl->topright_mb_xy = topright_xy;
414 13615920 sl->left_mb_xy[LTOP] = left_xy[LTOP];
415 13615920 sl->left_mb_xy[LBOT] = left_xy[LBOT];
416 //FIXME do we need all in the context?
417
418 13615920 sl->topleft_type = h->cur_pic.mb_type[topleft_xy];
419 13615920 sl->top_type = h->cur_pic.mb_type[top_xy];
420 13615920 sl->topright_type = h->cur_pic.mb_type[topright_xy];
421 13615920 sl->left_type[LTOP] = h->cur_pic.mb_type[left_xy[LTOP]];
422 13615920 sl->left_type[LBOT] = h->cur_pic.mb_type[left_xy[LBOT]];
423
424 if (FMO) {
425 if (h->slice_table[topleft_xy] != sl->slice_num)
426 sl->topleft_type = 0;
427 if (h->slice_table[top_xy] != sl->slice_num)
428 sl->top_type = 0;
429 if (h->slice_table[left_xy[LTOP]] != sl->slice_num)
430 sl->left_type[LTOP] = sl->left_type[LBOT] = 0;
431 } else {
432
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13615920 if (h->slice_table[topleft_xy] != sl->slice_num) {
433 1358253 sl->topleft_type = 0;
434
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1358253 if (h->slice_table[top_xy] != sl->slice_num)
435 1009437 sl->top_type = 0;
436
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1358253 if (h->slice_table[left_xy[LTOP]] != sl->slice_num)
437 382946 sl->left_type[LTOP] = sl->left_type[LBOT] = 0;
438 }
439 }
440
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13615920 if (h->slice_table[topright_xy] != sl->slice_num)
441 2079921 sl->topright_type = 0;
442 13615920 }
443
444 12192051 static void fill_decode_caches(const H264Context *h, H264SliceContext *sl, int mb_type)
445 {
446 int topleft_xy, top_xy, topright_xy, left_xy[LEFT_MBS];
447 int topleft_type, top_type, topright_type, left_type[LEFT_MBS];
448 12192051 const uint8_t *left_block = sl->left_block;
449 int i;
450 uint8_t *nnz;
451 uint8_t *nnz_cache;
452
453 12192051 topleft_xy = sl->topleft_mb_xy;
454 12192051 top_xy = sl->top_mb_xy;
455 12192051 topright_xy = sl->topright_mb_xy;
456 12192051 left_xy[LTOP] = sl->left_mb_xy[LTOP];
457 12192051 left_xy[LBOT] = sl->left_mb_xy[LBOT];
458 12192051 topleft_type = sl->topleft_type;
459 12192051 top_type = sl->top_type;
460 12192051 topright_type = sl->topright_type;
461 12192051 left_type[LTOP] = sl->left_type[LTOP];
462 12192051 left_type[LBOT] = sl->left_type[LBOT];
463
464
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12192051 if (!IS_SKIP(mb_type)) {
465
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10194612 if (IS_INTRA(mb_type)) {
466
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3817694 int type_mask = h->ps.pps->constrained_intra_pred ? IS_INTRA(-1) : -1;
467 3817694 sl->topleft_samples_available =
468 3817694 sl->top_samples_available =
469 3817694 sl->left_samples_available = 0xFFFF;
470 3817694 sl->topright_samples_available = 0xEEEA;
471
472
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3817694 if (!(top_type & type_mask)) {
473 270650 sl->topleft_samples_available = 0xB3FF;
474 270650 sl->top_samples_available = 0x33FF;
475 270650 sl->topright_samples_available = 0x26EA;
476 }
477
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3817694 if (IS_INTERLACED(mb_type) != IS_INTERLACED(left_type[LTOP])) {
478
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212225 if (IS_INTERLACED(mb_type)) {
479
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110678 if (!(left_type[LTOP] & type_mask)) {
480 15866 sl->topleft_samples_available &= 0xDFFF;
481 15866 sl->left_samples_available &= 0x5FFF;
482 }
483
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110678 if (!(left_type[LBOT] & type_mask)) {
484 15871 sl->topleft_samples_available &= 0xFF5F;
485 15871 sl->left_samples_available &= 0xFF5F;
486 }
487 } else {
488 101547 int left_typei = h->cur_pic.mb_type[left_xy[LTOP] + h->mb_stride];
489
490 av_assert2(left_xy[LTOP] == left_xy[LBOT]);
491
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101547 if (!((left_typei & type_mask) && (left_type[LTOP] & type_mask))) {
492 53 sl->topleft_samples_available &= 0xDF5F;
493 53 sl->left_samples_available &= 0x5F5F;
494 }
495 }
496 } else {
497
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3605469 if (!(left_type[LTOP] & type_mask)) {
498 64985 sl->topleft_samples_available &= 0xDF5F;
499 64985 sl->left_samples_available &= 0x5F5F;
500 }
501 }
502
503
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3817694 if (!(topleft_type & type_mask))
504 342816 sl->topleft_samples_available &= 0x7FFF;
505
506
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3817694 if (!(topright_type & type_mask))
507 709168 sl->topright_samples_available &= 0xFBFF;
508
509
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3817694 if (IS_INTRA4x4(mb_type)) {
510
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2959439 if (IS_INTRA4x4(top_type)) {
511 2225928 AV_COPY32(sl->intra4x4_pred_mode_cache + 4 + 8 * 0, sl->intra4x4_pred_mode + h->mb2br_xy[top_xy]);
512 } else {
513 733511 sl->intra4x4_pred_mode_cache[4 + 8 * 0] =
514 733511 sl->intra4x4_pred_mode_cache[5 + 8 * 0] =
515 733511 sl->intra4x4_pred_mode_cache[6 + 8 * 0] =
516
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733511 sl->intra4x4_pred_mode_cache[7 + 8 * 0] = 2 - 3 * !(top_type & type_mask);
517 }
518
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8878317 for (i = 0; i < 2; i++) {
519
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5918878 if (IS_INTRA4x4(left_type[LEFT(i)])) {
520 4764684 int8_t *mode = sl->intra4x4_pred_mode + h->mb2br_xy[left_xy[LEFT(i)]];
521 4764684 sl->intra4x4_pred_mode_cache[3 + 8 * 1 + 2 * 8 * i] = mode[6 - left_block[0 + 2 * i]];
522 4764684 sl->intra4x4_pred_mode_cache[3 + 8 * 2 + 2 * 8 * i] = mode[6 - left_block[1 + 2 * i]];
523 } else {
524 1154194 sl->intra4x4_pred_mode_cache[3 + 8 * 1 + 2 * 8 * i] =
525
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1154194 sl->intra4x4_pred_mode_cache[3 + 8 * 2 + 2 * 8 * i] = 2 - 3 * !(left_type[LEFT(i)] & type_mask);
526 }
527 }
528 }
529 }
530
531 /*
532 * 0 . T T. T T T T
533 * 1 L . .L . . . .
534 * 2 L . .L . . . .
535 * 3 . T TL . . . .
536 * 4 L . .L . . . .
537 * 5 L . .. . . . .
538 */
539 /* FIXME: constraint_intra_pred & partitioning & nnz
540 * (let us hope this is just a typo in the spec) */
541 10194612 nnz_cache = sl->non_zero_count_cache;
542
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10194612 if (top_type) {
543 9378709 nnz = h->non_zero_count[top_xy];
544 9378709 AV_COPY32(&nnz_cache[4 + 8 * 0], &nnz[4 * 3]);
545
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9378709 if (!h->chroma_y_shift) {
546 907099 AV_COPY32(&nnz_cache[4 + 8 * 5], &nnz[4 * 7]);
547 907099 AV_COPY32(&nnz_cache[4 + 8 * 10], &nnz[4 * 11]);
548 } else {
549 8471610 AV_COPY32(&nnz_cache[4 + 8 * 5], &nnz[4 * 5]);
550 8471610 AV_COPY32(&nnz_cache[4 + 8 * 10], &nnz[4 * 9]);
551 }
552 } else {
553
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815903 uint32_t top_empty = CABAC(h) && !IS_INTRA(mb_type) ? 0 : 0x40404040;
554 815903 AV_WN32A(&nnz_cache[4 + 8 * 0], top_empty);
555 815903 AV_WN32A(&nnz_cache[4 + 8 * 5], top_empty);
556 815903 AV_WN32A(&nnz_cache[4 + 8 * 10], top_empty);
557 }
558
559
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30583836 for (i = 0; i < 2; i++) {
560
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20389224 if (left_type[LEFT(i)]) {
561 19792008 nnz = h->non_zero_count[left_xy[LEFT(i)]];
562 19792008 nnz_cache[3 + 8 * 1 + 2 * 8 * i] = nnz[left_block[8 + 0 + 2 * i]];
563 19792008 nnz_cache[3 + 8 * 2 + 2 * 8 * i] = nnz[left_block[8 + 1 + 2 * i]];
564
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19792008 if (CHROMA444(h)) {
565 295798 nnz_cache[3 + 8 * 6 + 2 * 8 * i] = nnz[left_block[8 + 0 + 2 * i] + 4 * 4];
566 295798 nnz_cache[3 + 8 * 7 + 2 * 8 * i] = nnz[left_block[8 + 1 + 2 * i] + 4 * 4];
567 295798 nnz_cache[3 + 8 * 11 + 2 * 8 * i] = nnz[left_block[8 + 0 + 2 * i] + 8 * 4];
568 295798 nnz_cache[3 + 8 * 12 + 2 * 8 * i] = nnz[left_block[8 + 1 + 2 * i] + 8 * 4];
569
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19496210 } else if (CHROMA422(h)) {
570 1619188 nnz_cache[3 + 8 * 6 + 2 * 8 * i] = nnz[left_block[8 + 0 + 2 * i] - 2 + 4 * 4];
571 1619188 nnz_cache[3 + 8 * 7 + 2 * 8 * i] = nnz[left_block[8 + 1 + 2 * i] - 2 + 4 * 4];
572 1619188 nnz_cache[3 + 8 * 11 + 2 * 8 * i] = nnz[left_block[8 + 0 + 2 * i] - 2 + 8 * 4];
573 1619188 nnz_cache[3 + 8 * 12 + 2 * 8 * i] = nnz[left_block[8 + 1 + 2 * i] - 2 + 8 * 4];
574 } else {
575 17877022 nnz_cache[3 + 8 * 6 + 8 * i] = nnz[left_block[8 + 4 + 2 * i]];
576 17877022 nnz_cache[3 + 8 * 11 + 8 * i] = nnz[left_block[8 + 5 + 2 * i]];
577 }
578 } else {
579 597216 nnz_cache[3 + 8 * 1 + 2 * 8 * i] =
580 597216 nnz_cache[3 + 8 * 2 + 2 * 8 * i] =
581 597216 nnz_cache[3 + 8 * 6 + 2 * 8 * i] =
582 597216 nnz_cache[3 + 8 * 7 + 2 * 8 * i] =
583 597216 nnz_cache[3 + 8 * 11 + 2 * 8 * i] =
584
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597216 nnz_cache[3 + 8 * 12 + 2 * 8 * i] = CABAC(h) && !IS_INTRA(mb_type) ? 0 : 64;
585 }
586 }
587
588 if (CABAC(h)) {
589 // top_cbp
590
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6676272 if (top_type)
591 6205830 sl->top_cbp = h->cbp_table[top_xy];
592 else
593
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470442 sl->top_cbp = IS_INTRA(mb_type) ? 0x7CF : 0x00F;
594 // left_cbp
595
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6676272 if (left_type[LTOP]) {
596 6505974 sl->left_cbp = (h->cbp_table[left_xy[LTOP]] & 0x7F0) |
597 6505974 ((h->cbp_table[left_xy[LTOP]] >> (left_block[0] & (~1))) & 2) |
598 6505974 (((h->cbp_table[left_xy[LBOT]] >> (left_block[2] & (~1))) & 2) << 2);
599 } else {
600
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170298 sl->left_cbp = IS_INTRA(mb_type) ? 0x7CF : 0x00F;
601 }
602 }
603 }
604
605
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12192051 if (IS_INTER(mb_type) || (IS_DIRECT(mb_type) && sl->direct_spatial_mv_pred)) {
606 int list;
607 8310397 int b_stride = h->b_stride;
608
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21517874 for (list = 0; list < sl->list_count; list++) {
609 13207477 int8_t *ref_cache = &sl->ref_cache[list][scan8[0]];
610 13207477 int8_t *ref = h->cur_pic.ref_index[list];
611 13207477 int16_t(*mv_cache)[2] = &sl->mv_cache[list][scan8[0]];
612 13207477 int16_t(*mv)[2] = h->cur_pic.motion_val[list];
613
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13207477 if (!USES_LIST(mb_type, list))
614 1251861 continue;
615 av_assert2(!(IS_DIRECT(mb_type) && !sl->direct_spatial_mv_pred));
616
617
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11955616 if (USES_LIST(top_type, list)) {
618 9706398 const int b_xy = h->mb2b_xy[top_xy] + 3 * b_stride;
619 9706398 AV_COPY128(mv_cache[0 - 1 * 8], mv[b_xy + 0]);
620 9706398 ref_cache[0 - 1 * 8] =
621 9706398 ref_cache[1 - 1 * 8] = ref[4 * top_xy + 2];
622 9706398 ref_cache[2 - 1 * 8] =
623 9706398 ref_cache[3 - 1 * 8] = ref[4 * top_xy + 3];
624 } else {
625 2249218 AV_ZERO128(mv_cache[0 - 1 * 8]);
626
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2249218 AV_WN32A(&ref_cache[0 - 1 * 8],
627 ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE) & 0xFF) * 0x01010101u);
628 }
629
630
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11955616 if (mb_type & (MB_TYPE_16x8 | MB_TYPE_8x8)) {
631
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8190351 for (i = 0; i < 2; i++) {
632 5460234 int cache_idx = -1 + i * 2 * 8;
633
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5460234 if (USES_LIST(left_type[LEFT(i)], list)) {
634 4670240 const int b_xy = h->mb2b_xy[left_xy[LEFT(i)]] + 3;
635 4670240 const int b8_xy = 4 * left_xy[LEFT(i)] + 1;
636 4670240 AV_COPY32(mv_cache[cache_idx],
637 mv[b_xy + b_stride * left_block[0 + i * 2]]);
638 4670240 AV_COPY32(mv_cache[cache_idx + 8],
639 mv[b_xy + b_stride * left_block[1 + i * 2]]);
640 4670240 ref_cache[cache_idx] = ref[b8_xy + (left_block[0 + i * 2] & ~1)];
641 4670240 ref_cache[cache_idx + 8] = ref[b8_xy + (left_block[1 + i * 2] & ~1)];
642 } else {
643 789994 AV_ZERO32(mv_cache[cache_idx]);
644 789994 AV_ZERO32(mv_cache[cache_idx + 8]);
645 789994 ref_cache[cache_idx] =
646
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789994 ref_cache[cache_idx + 8] = (left_type[LEFT(i)]) ? LIST_NOT_USED
647 : PART_NOT_AVAILABLE;
648 }
649 }
650 } else {
651
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9225499 if (USES_LIST(left_type[LTOP], list)) {
652 7947889 const int b_xy = h->mb2b_xy[left_xy[LTOP]] + 3;
653 7947889 const int b8_xy = 4 * left_xy[LTOP] + 1;
654 7947889 AV_COPY32(mv_cache[-1], mv[b_xy + b_stride * left_block[0]]);
655 7947889 ref_cache[-1] = ref[b8_xy + (left_block[0] & ~1)];
656 } else {
657 1277610 AV_ZERO32(mv_cache[-1]);
658
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1277610 ref_cache[-1] = left_type[LTOP] ? LIST_NOT_USED
659 : PART_NOT_AVAILABLE;
660 }
661 }
662
663
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11955616 if (USES_LIST(topright_type, list)) {
664 8945815 const int b_xy = h->mb2b_xy[topright_xy] + 3 * b_stride;
665 8945815 AV_COPY32(mv_cache[4 - 1 * 8], mv[b_xy]);
666 8945815 ref_cache[4 - 1 * 8] = ref[4 * topright_xy + 2];
667 } else {
668 3009801 AV_ZERO32(mv_cache[4 - 1 * 8]);
669
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3009801 ref_cache[4 - 1 * 8] = topright_type ? LIST_NOT_USED
670 : PART_NOT_AVAILABLE;
671 }
672
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11955616 if(ref_cache[2 - 1*8] < 0 || ref_cache[4 - 1 * 8] < 0) {
673
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3675236 if (USES_LIST(topleft_type, list)) {
674 1678114 const int b_xy = h->mb2b_xy[topleft_xy] + 3 + b_stride +
675 1678114 (sl->topleft_partition & 2 * b_stride);
676 1678114 const int b8_xy = 4 * topleft_xy + 1 + (sl->topleft_partition & 2);
677 1678114 AV_COPY32(mv_cache[-1 - 1 * 8], mv[b_xy]);
678 1678114 ref_cache[-1 - 1 * 8] = ref[b8_xy];
679 } else {
680 1997122 AV_ZERO32(mv_cache[-1 - 1 * 8]);
681
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1997122 ref_cache[-1 - 1 * 8] = topleft_type ? LIST_NOT_USED
682 : PART_NOT_AVAILABLE;
683 }
684 }
685
686
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11955616 if ((mb_type & (MB_TYPE_SKIP | MB_TYPE_DIRECT2)) && !FRAME_MBAFF(h))
687 4556736 continue;
688
689
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7398880 if (!(mb_type & (MB_TYPE_SKIP | MB_TYPE_DIRECT2))) {
690 6894264 uint8_t(*mvd_cache)[2] = &sl->mvd_cache[list][scan8[0]];
691 6894264 uint8_t(*mvd)[2] = sl->mvd_table[list];
692 6894264 ref_cache[2 + 8 * 0] =
693 6894264 ref_cache[2 + 8 * 2] = PART_NOT_AVAILABLE;
694 6894264 AV_ZERO32(mv_cache[2 + 8 * 0]);
695 6894264 AV_ZERO32(mv_cache[2 + 8 * 2]);
696
697 if (CABAC(h)) {
698
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4543007 if (USES_LIST(top_type, list)) {
699 3632253 const int b_xy = h->mb2br_xy[top_xy];
700 3632253 AV_COPY64(mvd_cache[0 - 1 * 8], mvd[b_xy + 0]);
701 } else {
702 910754 AV_ZERO64(mvd_cache[0 - 1 * 8]);
703 }
704
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4543007 if (USES_LIST(left_type[LTOP], list)) {
705 3848791 const int b_xy = h->mb2br_xy[left_xy[LTOP]] + 6;
706 3848791 AV_COPY16(mvd_cache[-1 + 0 * 8], mvd[b_xy - left_block[0]]);
707 3848791 AV_COPY16(mvd_cache[-1 + 1 * 8], mvd[b_xy - left_block[1]]);
708 } else {
709 694216 AV_ZERO16(mvd_cache[-1 + 0 * 8]);
710 694216 AV_ZERO16(mvd_cache[-1 + 1 * 8]);
711 }
712
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4543007 if (USES_LIST(left_type[LBOT], list)) {
713 3848591 const int b_xy = h->mb2br_xy[left_xy[LBOT]] + 6;
714 3848591 AV_COPY16(mvd_cache[-1 + 2 * 8], mvd[b_xy - left_block[2]]);
715 3848591 AV_COPY16(mvd_cache[-1 + 3 * 8], mvd[b_xy - left_block[3]]);
716 } else {
717 694416 AV_ZERO16(mvd_cache[-1 + 2 * 8]);
718 694416 AV_ZERO16(mvd_cache[-1 + 3 * 8]);
719 }
720 4543007 AV_ZERO16(mvd_cache[2 + 8 * 0]);
721 4543007 AV_ZERO16(mvd_cache[2 + 8 * 2]);
722
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4543007 if (sl->slice_type_nos == AV_PICTURE_TYPE_B) {
723 2536394 uint8_t *direct_cache = &sl->direct_cache[scan8[0]];
724 2536394 uint8_t *direct_table = h->direct_table;
725 2536394 fill_rectangle(direct_cache, 4, 4, 8, MB_TYPE_16x16 >> 1, 1);
726
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2536394 if (IS_DIRECT(top_type)) {
728 395572 AV_WN32A(&direct_cache[-1 * 8],
729 0x01010101u * (MB_TYPE_DIRECT2 >> 1));
730
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2140822 } else if (IS_8X8(top_type)) {
731 610350 int b8_xy = 4 * top_xy;
732 610350 direct_cache[0 - 1 * 8] = direct_table[b8_xy + 2];
733 610350 direct_cache[2 - 1 * 8] = direct_table[b8_xy + 3];
734 } else {
735 1530472 AV_WN32A(&direct_cache[-1 * 8],
736 0x01010101 * (MB_TYPE_16x16 >> 1));
737 }
738
739
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2536394 if (IS_DIRECT(left_type[LTOP]))
740 390852 direct_cache[-1 + 0 * 8] = MB_TYPE_DIRECT2 >> 1;
741
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2145542 else if (IS_8X8(left_type[LTOP]))
742 645309 direct_cache[-1 + 0 * 8] = direct_table[4 * left_xy[LTOP] + 1 + (left_block[0] & ~1)];
743 else
744 1500233 direct_cache[-1 + 0 * 8] = MB_TYPE_16x16 >> 1;
745
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2536394 if (IS_DIRECT(left_type[LBOT]))
747 389967 direct_cache[-1 + 2 * 8] = MB_TYPE_DIRECT2 >> 1;
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2146427 else if (IS_8X8(left_type[LBOT]))
749 647398 direct_cache[-1 + 2 * 8] = direct_table[4 * left_xy[LBOT] + 1 + (left_block[2] & ~1)];
750 else
751 1499029 direct_cache[-1 + 2 * 8] = MB_TYPE_16x16 >> 1;
752 }
753 }
754 }
755
756 #define MAP_MVS \
757 MAP_F2F(scan8[0] - 1 - 1 * 8, topleft_type) \
758 MAP_F2F(scan8[0] + 0 - 1 * 8, top_type) \
759 MAP_F2F(scan8[0] + 1 - 1 * 8, top_type) \
760 MAP_F2F(scan8[0] + 2 - 1 * 8, top_type) \
761 MAP_F2F(scan8[0] + 3 - 1 * 8, top_type) \
762 MAP_F2F(scan8[0] + 4 - 1 * 8, topright_type) \
763 MAP_F2F(scan8[0] - 1 + 0 * 8, left_type[LTOP]) \
764 MAP_F2F(scan8[0] - 1 + 1 * 8, left_type[LTOP]) \
765 MAP_F2F(scan8[0] - 1 + 2 * 8, left_type[LBOT]) \
766 MAP_F2F(scan8[0] - 1 + 3 * 8, left_type[LBOT])
767
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7398880 if (FRAME_MBAFF(h)) {
769
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1583802 if (MB_FIELD(sl)) {
770
771 #define MAP_F2F(idx, mb_type) \
772 if (!IS_INTERLACED(mb_type) && sl->ref_cache[list][idx] >= 0) { \
773 sl->ref_cache[list][idx] *= 2; \
774 sl->mv_cache[list][idx][1] /= 2; \
775 sl->mvd_cache[list][idx][1] >>= 1; \
776 }
777
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543998 MAP_MVS
779 } else {
780
781 #undef MAP_F2F
782 #define MAP_F2F(idx, mb_type) \
783 if (IS_INTERLACED(mb_type) && sl->ref_cache[list][idx] >= 0) { \
784 sl->ref_cache[list][idx] >>= 1; \
785 sl->mv_cache[list][idx][1] *= 2; \
786 sl->mvd_cache[list][idx][1] <<= 1; \
787 }
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1039804 MAP_MVS
790 #undef MAP_F2F
791 }
792 }
793 }
794 }
795
796 12192051 sl->neighbor_transform_size = !!IS_8x8DCT(top_type) + !!IS_8x8DCT(left_type[LTOP]);
797 12192051 }
798
799 /**
800 * decodes a P_SKIP or B_SKIP macroblock
801 */
802 3551715 static void av_unused decode_mb_skip(const H264Context *h, H264SliceContext *sl)
803 {
804 3551715 const int mb_xy = sl->mb_xy;
805 3551715 int mb_type = 0;
806
807 3551715 memset(h->non_zero_count[mb_xy], 0, 48);
808
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3551715 if (MB_FIELD(sl))
810 1460599 mb_type |= MB_TYPE_INTERLACED;
811
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3551715 if (sl->slice_type_nos == AV_PICTURE_TYPE_B) {
813 // just for fill_caches. pred_direct_motion will set the real mb_type
814 2133505 mb_type |= MB_TYPE_L0L1 | MB_TYPE_DIRECT2 | MB_TYPE_SKIP;
815
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2133505 if (sl->direct_spatial_mv_pred) {
816 1997439 fill_decode_neighbors(h, sl, mb_type);
817 1997439 fill_decode_caches(h, sl, mb_type); //FIXME check what is needed and what not ...
818 }
819 2133505 ff_h264_pred_direct_motion(h, sl, &mb_type);
820 2133505 mb_type |= MB_TYPE_SKIP;
821 } else {
822 1418210 mb_type |= MB_TYPE_16x16 | MB_TYPE_P0L0 | MB_TYPE_P1L0 | MB_TYPE_SKIP;
823
824 1418210 fill_decode_neighbors(h, sl, mb_type);
825 1418210 pred_pskip_motion(h, sl);
826 }
827
828 3551715 write_back_motion(h, sl, mb_type);
829 3551715 h->cur_pic.mb_type[mb_xy] = mb_type;
830 3551715 h->cur_pic.qscale_table[mb_xy] = sl->qscale;
831 3551715 h->slice_table[mb_xy] = sl->slice_num;
832 3551715 sl->prev_mb_skipped = 1;
833 3551715 }
834
835 #endif /* AVCODEC_H264_MVPRED_H */
836