FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/cavs.c
Date: 2021-09-22 23:55:11
Exec Total Coverage
Lines: 470 487 96.5%
Branches: 210 231 90.9%
Line Branch Exec Source
1 /*
2 * Chinese AVS video (AVS1-P2, JiZhun profile) decoder.
3 * Copyright (c) 2006 Stefan Gehrer <stefan.gehrer@gmx.de>
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 * Chinese AVS video (AVS1-P2, JiZhun profile) decoder
25 * @author Stefan Gehrer <stefan.gehrer@gmx.de>
26 */
27
28 #include "libavutil/mem_internal.h"
29
30 #include "avcodec.h"
31 #include "get_bits.h"
32 #include "golomb.h"
33 #include "h264chroma.h"
34 #include "idctdsp.h"
35 #include "internal.h"
36 #include "mathops.h"
37 #include "qpeldsp.h"
38 #include "cavs.h"
39
40 static const uint8_t alpha_tab[64] = {
41 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 3, 3,
42 4, 4, 5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 18, 20,
43 22, 24, 26, 28, 30, 33, 33, 35, 35, 36, 37, 37, 39, 39, 42, 44,
44 46, 48, 50, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64
45 };
46
47 static const uint8_t beta_tab[64] = {
48 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2,
49 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6,
50 6, 7, 7, 7, 8, 8, 8, 9, 9, 10, 10, 11, 11, 12, 13, 14,
51 15, 16, 17, 18, 19, 20, 21, 22, 23, 23, 24, 24, 25, 25, 26, 27
52 };
53
54 static const uint8_t tc_tab[64] = {
55 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
56 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2,
57 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4,
58 5, 5, 5, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 9, 9, 9
59 };
60
61 /** mark block as unavailable, i.e. out of picture
62 * or not yet decoded */
63 static const cavs_vector un_mv = { 0, 0, 1, NOT_AVAIL };
64
65 static const int8_t left_modifier_l[8] = { 0, -1, 6, -1, -1, 7, 6, 7 };
66 static const int8_t top_modifier_l[8] = { -1, 1, 5, -1, -1, 5, 7, 7 };
67 static const int8_t left_modifier_c[7] = { 5, -1, 2, -1, 6, 5, 6 };
68 static const int8_t top_modifier_c[7] = { 4, 1, -1, -1, 4, 6, 6 };
69
70 /*****************************************************************************
71 *
72 * in-loop deblocking filter
73 *
74 ****************************************************************************/
75
76 1793782 static inline int get_bs(cavs_vector *mvP, cavs_vector *mvQ, int b)
77 {
78
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 1793782 if ((mvP->ref == REF_INTRA) || (mvQ->ref == REF_INTRA))
79 15674 return 2;
80
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 1778108 if((abs(mvP->x - mvQ->x) >= 4) ||
81
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 1673007 (abs(mvP->y - mvQ->y) >= 4) ||
82
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 1611712 (mvP->ref != mvQ->ref))
83 303544 return 1;
84
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 1474564 if (b) {
85 1217805 mvP += MV_BWD_OFFS;
86 1217805 mvQ += MV_BWD_OFFS;
87
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 1217805 if((abs(mvP->x - mvQ->x) >= 4) ||
88
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 1203525 (abs(mvP->y - mvQ->y) >= 4) ||
89
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 1195077 (mvP->ref != mvQ->ref))
90 67614 return 1;
91 }
92 1406950 return 0;
93 }
94
95 #define SET_PARAMS \
96 alpha = alpha_tab[av_clip_uintp2(qp_avg + h->alpha_offset, 6)]; \
97 beta = beta_tab[av_clip_uintp2(qp_avg + h->beta_offset, 6)]; \
98 tc = tc_tab[av_clip_uintp2(qp_avg + h->alpha_offset, 6)];
99
100 /**
101 * in-loop deblocking filter for a single macroblock
102 *
103 * boundary strength (bs) mapping:
104 *
105 * --4---5--
106 * 0 2 |
107 * | 6 | 7 |
108 * 1 3 |
109 * ---------
110 */
111 297745 void ff_cavs_filter(AVSContext *h, enum cavs_mb mb_type)
112 {
113 uint8_t bs[8];
114 int qp_avg, alpha, beta, tc;
115 int i;
116
117 /* save un-deblocked lines */
118 297745 h->topleft_border_y = h->top_border_y[h->mbx * 16 + 15];
119 297745 h->topleft_border_u = h->top_border_u[h->mbx * 10 + 8];
120 297745 h->topleft_border_v = h->top_border_v[h->mbx * 10 + 8];
121 297745 memcpy(&h->top_border_y[h->mbx * 16], h->cy + 15 * h->l_stride, 16);
122 297745 memcpy(&h->top_border_u[h->mbx * 10 + 1], h->cu + 7 * h->c_stride, 8);
123 297745 memcpy(&h->top_border_v[h->mbx * 10 + 1], h->cv + 7 * h->c_stride, 8);
124
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 2679705 for (i = 0; i < 8; i++) {
125 2381960 h->left_border_y[i * 2 + 1] = *(h->cy + 15 + (i * 2 + 0) * h->l_stride);
126 2381960 h->left_border_y[i * 2 + 2] = *(h->cy + 15 + (i * 2 + 1) * h->l_stride);
127 2381960 h->left_border_u[i + 1] = *(h->cu + 7 + i * h->c_stride);
128 2381960 h->left_border_v[i + 1] = *(h->cv + 7 + i * h->c_stride);
129 }
130
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 297745 if (!h->loop_filter_disable) {
131 /* determine bs */
132
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 297745 if (mb_type == I_8X8)
133 25344 memset(bs, 2, 8);
134 else {
135 272401 memset(bs, 0, 8);
136
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 272401 if (ff_cavs_partition_flags[mb_type] & SPLITV) {
137 175404 bs[2] = get_bs(&h->mv[MV_FWD_X0], &h->mv[MV_FWD_X1], mb_type > P_8X8);
138 175404 bs[3] = get_bs(&h->mv[MV_FWD_X2], &h->mv[MV_FWD_X3], mb_type > P_8X8);
139 }
140
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 272401 if (ff_cavs_partition_flags[mb_type] & SPLITH) {
141 176685 bs[6] = get_bs(&h->mv[MV_FWD_X0], &h->mv[MV_FWD_X2], mb_type > P_8X8);
142 176685 bs[7] = get_bs(&h->mv[MV_FWD_X1], &h->mv[MV_FWD_X3], mb_type > P_8X8);
143 }
144 272401 bs[0] = get_bs(&h->mv[MV_FWD_A1], &h->mv[MV_FWD_X0], mb_type > P_8X8);
145 272401 bs[1] = get_bs(&h->mv[MV_FWD_A3], &h->mv[MV_FWD_X2], mb_type > P_8X8);
146 272401 bs[4] = get_bs(&h->mv[MV_FWD_B2], &h->mv[MV_FWD_X0], mb_type > P_8X8);
147 272401 bs[5] = get_bs(&h->mv[MV_FWD_B3], &h->mv[MV_FWD_X1], mb_type > P_8X8);
148 }
149
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 297745 if (AV_RN64(bs)) {
150
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 134358 if (h->flags & A_AVAIL) {
151 127741 qp_avg = (h->qp + h->left_qp + 1) >> 1;
152 127741 SET_PARAMS;
153 127741 h->cdsp.cavs_filter_lv(h->cy, h->l_stride, alpha, beta, tc, bs[0], bs[1]);
154 127741 qp_avg = (ff_cavs_chroma_qp[h->qp] + ff_cavs_chroma_qp[h->left_qp] + 1) >> 1;
155 127741 SET_PARAMS;
156 127741 h->cdsp.cavs_filter_cv(h->cu, h->c_stride, alpha, beta, tc, bs[0], bs[1]);
157 127741 h->cdsp.cavs_filter_cv(h->cv, h->c_stride, alpha, beta, tc, bs[0], bs[1]);
158 }
159 134358 qp_avg = h->qp;
160 134358 SET_PARAMS;
161 134358 h->cdsp.cavs_filter_lv(h->cy + 8, h->l_stride, alpha, beta, tc, bs[2], bs[3]);
162 134358 h->cdsp.cavs_filter_lh(h->cy + 8 * h->l_stride, h->l_stride, alpha, beta, tc, bs[6], bs[7]);
163
164
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 134358 if (h->flags & B_AVAIL) {
165 126078 qp_avg = (h->qp + h->top_qp[h->mbx] + 1) >> 1;
166 126078 SET_PARAMS;
167 126078 h->cdsp.cavs_filter_lh(h->cy, h->l_stride, alpha, beta, tc, bs[4], bs[5]);
168 126078 qp_avg = (ff_cavs_chroma_qp[h->qp] + ff_cavs_chroma_qp[h->top_qp[h->mbx]] + 1) >> 1;
169 126078 SET_PARAMS;
170 126078 h->cdsp.cavs_filter_ch(h->cu, h->c_stride, alpha, beta, tc, bs[4], bs[5]);
171 126078 h->cdsp.cavs_filter_ch(h->cv, h->c_stride, alpha, beta, tc, bs[4], bs[5]);
172 }
173 }
174 }
175 297745 h->left_qp = h->qp;
176 297745 h->top_qp[h->mbx] = h->qp;
177 297745 }
178
179 #undef SET_PARAMS
180
181 /*****************************************************************************
182 *
183 * spatial intra prediction
184 *
185 ****************************************************************************/
186
187 101376 void ff_cavs_load_intra_pred_luma(AVSContext *h, uint8_t *top,
188 uint8_t **left, int block)
189 {
190 int i;
191
192
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 101376 switch (block) {
193 25344 case 0:
194 25344 *left = h->left_border_y;
195 25344 h->left_border_y[0] = h->left_border_y[1];
196 25344 memset(&h->left_border_y[17], h->left_border_y[16], 9);
197 25344 memcpy(&top[1], &h->top_border_y[h->mbx * 16], 16);
198 25344 top[17] = top[16];
199 25344 top[0] = top[1];
200
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 25344 if ((h->flags & A_AVAIL) && (h->flags & B_AVAIL))
201 24410 h->left_border_y[0] = top[0] = h->topleft_border_y;
202 25344 break;
203 25344 case 1:
204 25344 *left = h->intern_border_y;
205
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 228096 for (i = 0; i < 8; i++)
206 202752 h->intern_border_y[i + 1] = *(h->cy + 7 + i * h->l_stride);
207 25344 memset(&h->intern_border_y[9], h->intern_border_y[8], 9);
208 25344 h->intern_border_y[0] = h->intern_border_y[1];
209 25344 memcpy(&top[1], &h->top_border_y[h->mbx * 16 + 8], 8);
210
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 25344 if (h->flags & C_AVAIL)
211 24175 memcpy(&top[9], &h->top_border_y[(h->mbx + 1) * 16], 8);
212 else
213 1169 memset(&top[9], top[8], 9);
214 25344 top[17] = top[16];
215 25344 top[0] = top[1];
216
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 25344 if (h->flags & B_AVAIL)
217 24808 h->intern_border_y[0] = top[0] = h->top_border_y[h->mbx * 16 + 7];
218 25344 break;
219 25344 case 2:
220 25344 *left = &h->left_border_y[8];
221 25344 memcpy(&top[1], h->cy + 7 * h->l_stride, 16);
222 25344 top[17] = top[16];
223 25344 top[0] = top[1];
224
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 25344 if (h->flags & A_AVAIL)
225 24937 top[0] = h->left_border_y[8];
226 25344 break;
227 25344 case 3:
228 25344 *left = &h->intern_border_y[8];
229
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 228096 for (i = 0; i < 8; i++)
230 202752 h->intern_border_y[i + 9] = *(h->cy + 7 + (i + 8) * h->l_stride);
231 25344 memset(&h->intern_border_y[17], h->intern_border_y[16], 9);
232 25344 memcpy(&top[0], h->cy + 7 + 7 * h->l_stride, 9);
233 25344 memset(&top[9], top[8], 9);
234 25344 break;
235 }
236 101376 }
237
238 25344 void ff_cavs_load_intra_pred_chroma(AVSContext *h)
239 {
240 /* extend borders by one pixel */
241 25344 h->left_border_u[9] = h->left_border_u[8];
242 25344 h->left_border_v[9] = h->left_border_v[8];
243
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 25344 if(h->flags & C_AVAIL) {
244 24175 h->top_border_u[h->mbx*10 + 9] = h->top_border_u[h->mbx*10 + 11];
245 24175 h->top_border_v[h->mbx*10 + 9] = h->top_border_v[h->mbx*10 + 11];
246 } else {
247 1169 h->top_border_u[h->mbx * 10 + 9] = h->top_border_u[h->mbx * 10 + 8];
248 1169 h->top_border_v[h->mbx * 10 + 9] = h->top_border_v[h->mbx * 10 + 8];
249 }
250
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 25344 if((h->flags & A_AVAIL) && (h->flags & B_AVAIL)) {
251 24410 h->top_border_u[h->mbx * 10] = h->left_border_u[0] = h->topleft_border_u;
252 24410 h->top_border_v[h->mbx * 10] = h->left_border_v[0] = h->topleft_border_v;
253 } else {
254 934 h->left_border_u[0] = h->left_border_u[1];
255 934 h->left_border_v[0] = h->left_border_v[1];
256 934 h->top_border_u[h->mbx * 10] = h->top_border_u[h->mbx * 10 + 1];
257 934 h->top_border_v[h->mbx * 10] = h->top_border_v[h->mbx * 10 + 1];
258 }
259 25344 }
260
261 45576 static void intra_pred_vert(uint8_t *d, uint8_t *top, uint8_t *left, ptrdiff_t stride)
262 {
263 int y;
264 45576 uint64_t a = AV_RN64(&top[1]);
265
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266 364608 *((uint64_t *)(d + y * stride)) = a;
267 45576 }
268
269 33618 static void intra_pred_horiz(uint8_t *d, uint8_t *top, uint8_t *left, ptrdiff_t stride)
270 {
271 int y;
272 uint64_t a;
273
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 302562 for (y = 0; y < 8; y++) {
274 268944 a = left[y + 1] * 0x0101010101010101ULL;
275 268944 *((uint64_t *)(d + y * stride)) = a;
276 }
277 33618 }
278
279 27 static void intra_pred_dc_128(uint8_t *d, uint8_t *top, uint8_t *left, ptrdiff_t stride)
280 {
281 int y;
282 27 uint64_t a = 0x8080808080808080ULL;
283
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 243 for (y = 0; y < 8; y++)
284 216 *((uint64_t *)(d + y * stride)) = a;
285 27 }
286
287 2756 static void intra_pred_plane(uint8_t *d, uint8_t *top, uint8_t *left, ptrdiff_t stride)
288 {
289 int x, y, ia;
290 2756 int ih = 0;
291 2756 int iv = 0;
292 2756 const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;
293
294
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 13780 for (x = 0; x < 4; x++) {
295 11024 ih += (x + 1) * (top[5 + x] - top[3 - x]);
296 11024 iv += (x + 1) * (left[5 + x] - left[3 - x]);
297 }
298 2756 ia = (top[8] + left[8]) << 4;
299 2756 ih = (17 * ih + 16) >> 5;
300 2756 iv = (17 * iv + 16) >> 5;
301
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302
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303 176384 d[y * stride + x] = cm[(ia + (x - 3) * ih + (y - 3) * iv + 16) >> 5];
304 2756 }
305
306 #define LOWPASS(ARRAY, INDEX) \
307 ((ARRAY[(INDEX) - 1] + 2 * ARRAY[(INDEX)] + ARRAY[(INDEX) + 1] + 2) >> 2)
308
309 61656 static void intra_pred_lp(uint8_t *d, uint8_t *top, uint8_t *left, ptrdiff_t stride)
310 {
311 int x, y;
312
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313
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314 3945984 d[y * stride + x] = (LOWPASS(top, x + 1) + LOWPASS(left, y + 1)) >> 1;
315 61656 }
316
317 2887 static void intra_pred_down_left(uint8_t *d, uint8_t *top, uint8_t *left, ptrdiff_t stride)
318 {
319 int x, y;
320
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321
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322 184768 d[y * stride + x] = (LOWPASS(top, x + y + 2) + LOWPASS(left, x + y + 2)) >> 1;
323 2887 }
324
325 1826 static void intra_pred_down_right(uint8_t *d, uint8_t *top, uint8_t *left, ptrdiff_t stride)
326 {
327 int x, y;
328
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329
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330
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 116864 if (x == y)
331 14608 d[y * stride + x] = (left[1] + 2 * top[0] + top[1] + 2) >> 2;
332
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 102256 else if (x > y)
333 51128 d[y * stride + x] = LOWPASS(top, x - y);
334 else
335 51128 d[y * stride + x] = LOWPASS(left, y - x);
336 1826 }
337
338 2117 static void intra_pred_lp_left(uint8_t *d, uint8_t *top, uint8_t *left, ptrdiff_t stride)
339 {
340 int x, y;
341
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342
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343 135488 d[y * stride + x] = LOWPASS(left, y + 1);
344 2117 }
345
346 1601 static void intra_pred_lp_top(uint8_t *d, uint8_t *top, uint8_t *left, ptrdiff_t stride)
347 {
348 int x, y;
349
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350
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351 102464 d[y * stride + x] = LOWPASS(top, x + 1);
352 1601 }
353
354 #undef LOWPASS
355
356 2829 static inline void modify_pred(const int8_t *mod_table, int *mode)
357 {
358 2829 *mode = mod_table[*mode];
359
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 2829 if (*mode < 0) {
360 ✗ av_log(NULL, AV_LOG_ERROR, "Illegal intra prediction mode\n");
361 ✗ *mode = 0;
362 }
363 2829 }
364
365 25344 void ff_cavs_modify_mb_i(AVSContext *h, int *pred_mode_uv)
366 {
367 /* save pred modes before they get modified */
368 25344 h->pred_mode_Y[3] = h->pred_mode_Y[5];
369 25344 h->pred_mode_Y[6] = h->pred_mode_Y[8];
370 25344 h->top_pred_Y[h->mbx * 2 + 0] = h->pred_mode_Y[7];
371 25344 h->top_pred_Y[h->mbx * 2 + 1] = h->pred_mode_Y[8];
372
373 /* modify pred modes according to availability of neighbour samples */
374
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 25344 if (!(h->flags & A_AVAIL)) {
375 407 modify_pred(left_modifier_l, &h->pred_mode_Y[4]);
376 407 modify_pred(left_modifier_l, &h->pred_mode_Y[7]);
377 407 modify_pred(left_modifier_c, pred_mode_uv);
378 }
379
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 25344 if (!(h->flags & B_AVAIL)) {
380 536 modify_pred(top_modifier_l, &h->pred_mode_Y[4]);
381 536 modify_pred(top_modifier_l, &h->pred_mode_Y[5]);
382 536 modify_pred(top_modifier_c, pred_mode_uv);
383 }
384 25344 }
385
386 /*****************************************************************************
387 *
388 * motion compensation
389 *
390 ****************************************************************************/
391
392 1448997 static inline void mc_dir_part(AVSContext *h, AVFrame *pic, int chroma_height,
393 int delta, int list, uint8_t *dest_y,
394 uint8_t *dest_cb, uint8_t *dest_cr,
395 int src_x_offset, int src_y_offset,
396 qpel_mc_func *qpix_op,
397 h264_chroma_mc_func chroma_op, cavs_vector *mv)
398 {
399 1448997 const int mx = mv->x + src_x_offset * 8;
400 1448997 const int my = mv->y + src_y_offset * 8;
401 1448997 const int luma_xy = (mx & 3) + ((my & 3) << 2);
402 1448997 uint8_t *src_y = pic->data[0] + (mx >> 2) + (my >> 2) * h->l_stride;
403 1448997 uint8_t *src_cb = pic->data[1] + (mx >> 3) + (my >> 3) * h->c_stride;
404 1448997 uint8_t *src_cr = pic->data[2] + (mx >> 3) + (my >> 3) * h->c_stride;
405 1448997 int extra_width = 0;
406 1448997 int extra_height = extra_width;
407 1448997 const int full_mx = mx >> 2;
408 1448997 const int full_my = my >> 2;
409 1448997 const int pic_width = 16 * h->mb_width;
410 1448997 const int pic_height = 16 * h->mb_height;
411 1448997 int emu = 0;
412
413
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 1448997 if (!pic->data[0])
414 ✗ return;
415
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 1448997 if (mx & 7)
416 120702 extra_width -= 3;
417
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 1448997 if (my & 7)
418 125744 extra_height -= 3;
419
420
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 1448997 if (full_mx < 0 - extra_width ||
421
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 1448061 full_my < 0 - extra_height ||
422
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 1446581 full_mx + 16 /* FIXME */ > pic_width + extra_width ||
423
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 1431388 full_my + 16 /* FIXME */ > pic_height + extra_height) {
424 37368 h->vdsp.emulated_edge_mc(h->edge_emu_buffer,
425 37368 src_y - 2 - 2 * h->l_stride,
426 h->l_stride, h->l_stride,
427 16 + 5, 16 + 5 /* FIXME */,
428 full_mx - 2, full_my - 2,
429 pic_width, pic_height);
430 37368 src_y = h->edge_emu_buffer + 2 + 2 * h->l_stride;
431 37368 emu = 1;
432 }
433
434 // FIXME try variable height perhaps?
435 1448997 qpix_op[luma_xy](dest_y, src_y, h->l_stride);
436
437
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 1448997 if (emu) {
438 37368 h->vdsp.emulated_edge_mc(h->edge_emu_buffer, src_cb,
439 h->c_stride, h->c_stride,
440 9, 9 /* FIXME */,
441 mx >> 3, my >> 3,
442 pic_width >> 1, pic_height >> 1);
443 37368 src_cb = h->edge_emu_buffer;
444 }
445 1448997 chroma_op(dest_cb, src_cb, h->c_stride, chroma_height, mx & 7, my & 7);
446
447
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 1448997 if (emu) {
448 37368 h->vdsp.emulated_edge_mc(h->edge_emu_buffer, src_cr,
449 h->c_stride, h->c_stride,
450 9, 9 /* FIXME */,
451 mx >> 3, my >> 3,
452 pic_width >> 1, pic_height >> 1);
453 37368 src_cr = h->edge_emu_buffer;
454 }
455 1448997 chroma_op(dest_cr, src_cr, h->c_stride, chroma_height, mx & 7, my & 7);
456 }
457
458 832240 static inline void mc_part_std(AVSContext *h, int chroma_height, int delta,
459 uint8_t *dest_y,
460 uint8_t *dest_cb,
461 uint8_t *dest_cr,
462 int x_offset, int y_offset,
463 qpel_mc_func *qpix_put,
464 h264_chroma_mc_func chroma_put,
465 qpel_mc_func *qpix_avg,
466 h264_chroma_mc_func chroma_avg,
467 cavs_vector *mv)
468 {
469 832240 qpel_mc_func *qpix_op = qpix_put;
470 832240 h264_chroma_mc_func chroma_op = chroma_put;
471
472 832240 dest_y += x_offset * 2 + y_offset * h->l_stride * 2;
473 832240 dest_cb += x_offset + y_offset * h->c_stride;
474 832240 dest_cr += x_offset + y_offset * h->c_stride;
475 832240 x_offset += 8 * h->mbx;
476 832240 y_offset += 8 * h->mby;
477
478
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 832240 if (mv->ref >= 0) {
479 788976 AVFrame *ref = h->DPB[mv->ref].f;
480 788976 mc_dir_part(h, ref, chroma_height, delta, 0,
481 dest_y, dest_cb, dest_cr, x_offset, y_offset,
482 qpix_op, chroma_op, mv);
483
484 788976 qpix_op = qpix_avg;
485 788976 chroma_op = chroma_avg;
486 }
487
488
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 832240 if ((mv + MV_BWD_OFFS)->ref >= 0) {
489 660021 AVFrame *ref = h->DPB[0].f;
490 660021 mc_dir_part(h, ref, chroma_height, delta, 1,
491 dest_y, dest_cb, dest_cr, x_offset, y_offset,
492 qpix_op, chroma_op, mv + MV_BWD_OFFS);
493 }
494 832240 }
495
496 272401 void ff_cavs_inter(AVSContext *h, enum cavs_mb mb_type)
497 {
498
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 272401 if (ff_cavs_partition_flags[mb_type] == 0) { // 16x16
499 85788 mc_part_std(h, 8, 0, h->cy, h->cu, h->cv, 0, 0,
500 85788 h->cdsp.put_cavs_qpel_pixels_tab[0],
501 h->h264chroma.put_h264_chroma_pixels_tab[0],
502 85788 h->cdsp.avg_cavs_qpel_pixels_tab[0],
503 h->h264chroma.avg_h264_chroma_pixels_tab[0],
504 &h->mv[MV_FWD_X0]);
505 } else {
506 186613 mc_part_std(h, 4, 0, h->cy, h->cu, h->cv, 0, 0,
507 186613 h->cdsp.put_cavs_qpel_pixels_tab[1],
508 h->h264chroma.put_h264_chroma_pixels_tab[1],
509 186613 h->cdsp.avg_cavs_qpel_pixels_tab[1],
510 h->h264chroma.avg_h264_chroma_pixels_tab[1],
511 &h->mv[MV_FWD_X0]);
512 186613 mc_part_std(h, 4, 0, h->cy, h->cu, h->cv, 4, 0,
513 186613 h->cdsp.put_cavs_qpel_pixels_tab[1],
514 h->h264chroma.put_h264_chroma_pixels_tab[1],
515 186613 h->cdsp.avg_cavs_qpel_pixels_tab[1],
516 h->h264chroma.avg_h264_chroma_pixels_tab[1],
517 &h->mv[MV_FWD_X1]);
518 186613 mc_part_std(h, 4, 0, h->cy, h->cu, h->cv, 0, 4,
519 186613 h->cdsp.put_cavs_qpel_pixels_tab[1],
520 h->h264chroma.put_h264_chroma_pixels_tab[1],
521 186613 h->cdsp.avg_cavs_qpel_pixels_tab[1],
522 h->h264chroma.avg_h264_chroma_pixels_tab[1],
523 &h->mv[MV_FWD_X2]);
524 186613 mc_part_std(h, 4, 0, h->cy, h->cu, h->cv, 4, 4,
525 186613 h->cdsp.put_cavs_qpel_pixels_tab[1],
526 h->h264chroma.put_h264_chroma_pixels_tab[1],
527 186613 h->cdsp.avg_cavs_qpel_pixels_tab[1],
528 h->h264chroma.avg_h264_chroma_pixels_tab[1],
529 &h->mv[MV_FWD_X3]);
530 }
531 272401 }
532
533 /*****************************************************************************
534 *
535 * motion vector prediction
536 *
537 ****************************************************************************/
538
539 510849 static inline void scale_mv(AVSContext *h, int *d_x, int *d_y,
540 cavs_vector *src, int distp)
541 {
542 510849 int64_t den = h->scale_den[FFMAX(src->ref, 0)];
543 510849 *d_x = (src->x * distp * den + 256 + FF_SIGNBIT(src->x)) >> 9;
544 510849 *d_y = (src->y * distp * den + 256 + FF_SIGNBIT(src->y)) >> 9;
545 510849 }
546
547 170283 static inline void mv_pred_median(AVSContext *h,
548 cavs_vector *mvP,
549 cavs_vector *mvA,
550 cavs_vector *mvB,
551 cavs_vector *mvC)
552 {
553 int ax, ay, bx, by, cx, cy;
554 int len_ab, len_bc, len_ca, len_mid;
555
556 /* scale candidates according to their temporal span */
557 170283 scale_mv(h, &ax, &ay, mvA, mvP->dist);
558 170283 scale_mv(h, &bx, &by, mvB, mvP->dist);
559 170283 scale_mv(h, &cx, &cy, mvC, mvP->dist);
560 /* find the geometrical median of the three candidates */
561 170283 len_ab = abs(ax - bx) + abs(ay - by);
562 170283 len_bc = abs(bx - cx) + abs(by - cy);
563 170283 len_ca = abs(cx - ax) + abs(cy - ay);
564 170283 len_mid = mid_pred(len_ab, len_bc, len_ca);
565
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 170283 if (len_mid == len_ab) {
566 137907 mvP->x = cx;
567 137907 mvP->y = cy;
568
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 32376 } else if (len_mid == len_bc) {
569 24630 mvP->x = ax;
570 24630 mvP->y = ay;
571 } else {
572 7746 mvP->x = bx;
573 7746 mvP->y = by;
574 }
575 170283 }
576
577 238918 void ff_cavs_mv(AVSContext *h, enum cavs_mv_loc nP, enum cavs_mv_loc nC,
578 enum cavs_mv_pred mode, enum cavs_block size, int ref)
579 {
580 238918 cavs_vector *mvP = &h->mv[nP];
581 238918 cavs_vector *mvA = &h->mv[nP-1];
582 238918 cavs_vector *mvB = &h->mv[nP-4];
583 238918 cavs_vector *mvC = &h->mv[nC];
584 238918 const cavs_vector *mvP2 = NULL;
585
586 238918 mvP->ref = ref;
587 238918 mvP->dist = h->dist[mvP->ref];
588
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 238918 if (mvC->ref == NOT_AVAIL || (nP == MV_FWD_X3) || (nP == MV_BWD_X3 ))
589 28240 mvC = &h->mv[nP - 5]; // set to top-left (mvD)
590
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 238918 if (mode == MV_PRED_PSKIP &&
591
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 20801 (mvA->ref == NOT_AVAIL ||
592
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 20081 mvB->ref == NOT_AVAIL ||
593
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 19308 (mvA->x | mvA->y | mvA->ref) == 0 ||
594
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 850 (mvB->x | mvB->y | mvB->ref) == 0)) {
595 20434 mvP2 = &un_mv;
596 /* if there is only one suitable candidate, take it */
597
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 218484 } else if (mvA->ref >= 0 && mvB->ref < 0 && mvC->ref < 0) {
598 11224 mvP2 = mvA;
599
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 207260 } else if (mvA->ref < 0 && mvB->ref >= 0 && mvC->ref < 0) {
600 4577 mvP2 = mvB;
601
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 202683 } else if (mvA->ref < 0 && mvB->ref < 0 && mvC->ref >= 0) {
602 3525 mvP2 = mvC;
603
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 199158 } else if (mode == MV_PRED_LEFT && mvA->ref == ref) {
604 14269 mvP2 = mvA;
605
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 184889 } else if (mode == MV_PRED_TOP && mvB->ref == ref) {
606 7898 mvP2 = mvB;
607
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 176991 } else if (mode == MV_PRED_TOPRIGHT && mvC->ref == ref) {
608 6708 mvP2 = mvC;
609 }
610
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 238918 if (mvP2) {
611 68635 mvP->x = mvP2->x;
612 68635 mvP->y = mvP2->y;
613 } else
614 170283 mv_pred_median(h, mvP, mvA, mvB, mvC);
615
616
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 238918 if (mode < MV_PRED_PSKIP) {
617 189273 int mx = get_se_golomb(&h->gb) + (unsigned)mvP->x;
618 189273 int my = get_se_golomb(&h->gb) + (unsigned)mvP->y;
619
620
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 189273 if (mx != (int16_t)mx || my != (int16_t)my) {
621 ✗ av_log(h->avctx, AV_LOG_ERROR, "MV %d %d out of supported range\n", mx, my);
622 } else {
623 189273 mvP->x = mx;
624 189273 mvP->y = my;
625 }
626 }
627 238918 set_mvs(mvP, size);
628 238918 }
629
630 /*****************************************************************************
631 *
632 * macroblock level
633 *
634 ****************************************************************************/
635
636 /**
637 * initialise predictors for motion vectors and intra prediction
638 */
639 297745 void ff_cavs_init_mb(AVSContext *h)
640 {
641 int i;
642
643 /* copy predictors from top line (MB B and C) into cache */
644
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 1190980 for (i = 0; i < 3; i++) {
645 893235 h->mv[MV_FWD_B2 + i] = h->top_mv[0][h->mbx * 2 + i];
646 893235 h->mv[MV_BWD_B2 + i] = h->top_mv[1][h->mbx * 2 + i];
647 }
648 297745 h->pred_mode_Y[1] = h->top_pred_Y[h->mbx * 2 + 0];
649 297745 h->pred_mode_Y[2] = h->top_pred_Y[h->mbx * 2 + 1];
650 /* clear top predictors if MB B is not available */
651
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 297745 if (!(h->flags & B_AVAIL)) {
652 8280 h->mv[MV_FWD_B2] = un_mv;
653 8280 h->mv[MV_FWD_B3] = un_mv;
654 8280 h->mv[MV_BWD_B2] = un_mv;
655 8280 h->mv[MV_BWD_B3] = un_mv;
656 8280 h->pred_mode_Y[1] = h->pred_mode_Y[2] = NOT_AVAIL;
657 8280 h->flags &= ~(C_AVAIL | D_AVAIL);
658
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 289465 } else if (h->mbx) {
659 283032 h->flags |= D_AVAIL;
660 }
661
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 297745 if (h->mbx == h->mb_width - 1) // MB C not available
662 6616 h->flags &= ~C_AVAIL;
663 /* clear top-right predictors if MB C is not available */
664
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 297745 if (!(h->flags & C_AVAIL)) {
665 14712 h->mv[MV_FWD_C2] = un_mv;
666 14712 h->mv[MV_BWD_C2] = un_mv;
667 }
668 /* clear top-left predictors if MB D is not available */
669
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 297745 if (!(h->flags & D_AVAIL)) {
670 14713 h->mv[MV_FWD_D3] = un_mv;
671 14713 h->mv[MV_BWD_D3] = un_mv;
672 }
673 297745 }
674
675 /**
676 * save predictors for later macroblocks and increase
677 * macroblock address
678 * @return 0 if end of frame is reached, 1 otherwise
679 */
680 297745 int ff_cavs_next_mb(AVSContext *h)
681 {
682 int i;
683
684 297745 h->flags |= A_AVAIL;
685 297745 h->cy += 16;
686 297745 h->cu += 8;
687 297745 h->cv += 8;
688 /* copy mvs as predictors to the left */
689
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 2084215 for (i = 0; i <= 20; i += 4)
690 1786470 h->mv[i] = h->mv[i + 2];
691 /* copy bottom mvs from cache to top line */
692 297745 h->top_mv[0][h->mbx * 2 + 0] = h->mv[MV_FWD_X2];
693 297745 h->top_mv[0][h->mbx * 2 + 1] = h->mv[MV_FWD_X3];
694 297745 h->top_mv[1][h->mbx * 2 + 0] = h->mv[MV_BWD_X2];
695 297745 h->top_mv[1][h->mbx * 2 + 1] = h->mv[MV_BWD_X3];
696 /* next MB address */
697 297745 h->mbidx++;
698 297745 h->mbx++;
699
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 297745 if (h->mbx == h->mb_width) { // New mb line
700 6616 h->flags = B_AVAIL | C_AVAIL;
701 /* clear left pred_modes */
702 6616 h->pred_mode_Y[3] = h->pred_mode_Y[6] = NOT_AVAIL;
703 /* clear left mv predictors */
704
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 46312 for (i = 0; i <= 20; i += 4)
705 39696 h->mv[i] = un_mv;
706 6616 h->mbx = 0;
707 6616 h->mby++;
708 /* re-calculate sample pointers */
709 6616 h->cy = h->cur.f->data[0] + h->mby * 16 * h->l_stride;
710 6616 h->cu = h->cur.f->data[1] + h->mby * 8 * h->c_stride;
711 6616 h->cv = h->cur.f->data[2] + h->mby * 8 * h->c_stride;
712
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 6616 if (h->mby == h->mb_height) { // Frame end
713 183 return 0;
714 }
715 }
716 297562 return 1;
717 }
718
719 /*****************************************************************************
720 *
721 * frame level
722 *
723 ****************************************************************************/
724
725 184 int ff_cavs_init_pic(AVSContext *h)
726 {
727 int i;
728
729 /* clear some predictors */
730
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 1288 for (i = 0; i <= 20; i += 4)
731 1104 h->mv[i] = un_mv;
732 184 h->mv[MV_BWD_X0] = ff_cavs_dir_mv;
733 184 set_mvs(&h->mv[MV_BWD_X0], BLK_16X16);
734 184 h->mv[MV_FWD_X0] = ff_cavs_dir_mv;
735 184 set_mvs(&h->mv[MV_FWD_X0], BLK_16X16);
736 184 h->pred_mode_Y[3] = h->pred_mode_Y[6] = NOT_AVAIL;
737 184 h->cy = h->cur.f->data[0];
738 184 h->cu = h->cur.f->data[1];
739 184 h->cv = h->cur.f->data[2];
740 184 h->l_stride = h->cur.f->linesize[0];
741 184 h->c_stride = h->cur.f->linesize[1];
742 184 h->luma_scan[2] = 8 * h->l_stride;
743 184 h->luma_scan[3] = 8 * h->l_stride + 8;
744 184 h->mbx = h->mby = h->mbidx = 0;
745 184 h->flags = 0;
746
747 184 return 0;
748 }
749
750 /*****************************************************************************
751 *
752 * headers and interface
753 *
754 ****************************************************************************/
755
756 /**
757 * some predictions require data from the top-neighbouring macroblock.
758 * this data has to be stored for one complete row of macroblocks
759 * and this storage space is allocated here
760 */
761 4 int ff_cavs_init_top_lines(AVSContext *h)
762 {
763 /* alloc top line of predictors */
764 4 h->top_qp = av_mallocz(h->mb_width);
765 4 h->top_mv[0] = av_calloc(h->mb_width * 2 + 1, sizeof(cavs_vector));
766 4 h->top_mv[1] = av_calloc(h->mb_width * 2 + 1, sizeof(cavs_vector));
767 4 h->top_pred_Y = av_calloc(h->mb_width * 2, sizeof(*h->top_pred_Y));
768 4 h->top_border_y = av_calloc(h->mb_width + 1, 16);
769 4 h->top_border_u = av_calloc(h->mb_width, 10);
770 4 h->top_border_v = av_calloc(h->mb_width, 10);
771
772 /* alloc space for co-located MVs and types */
773 4 h->col_mv = av_calloc(h->mb_width * h->mb_height,
774 4 * sizeof(*h->col_mv));
775 4 h->col_type_base = av_mallocz(h->mb_width * h->mb_height);
776 4 h->block = av_mallocz(64 * sizeof(int16_t));
777
778
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 4 if (!h->top_qp || !h->top_mv[0] || !h->top_mv[1] || !h->top_pred_Y ||
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 4 !h->top_border_y || !h->top_border_u || !h->top_border_v ||
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 4 !h->col_mv || !h->col_type_base || !h->block) {
781 ✗ av_freep(&h->top_qp);
782 ✗ av_freep(&h->top_mv[0]);
783 ✗ av_freep(&h->top_mv[1]);
784 ✗ av_freep(&h->top_pred_Y);
785 ✗ av_freep(&h->top_border_y);
786 ✗ av_freep(&h->top_border_u);
787 ✗ av_freep(&h->top_border_v);
788 ✗ av_freep(&h->col_mv);
789 ✗ av_freep(&h->col_type_base);
790 ✗ av_freep(&h->block);
791 ✗ return AVERROR(ENOMEM);
792 }
793 4 return 0;
794 }
795
796 4 av_cold int ff_cavs_init(AVCodecContext *avctx)
797 {
798 4 AVSContext *h = avctx->priv_data;
799
800 4 ff_blockdsp_init(&h->bdsp, avctx);
801 4 ff_h264chroma_init(&h->h264chroma, 8);
802 4 ff_idctdsp_init(&h->idsp, avctx);
803 4 ff_videodsp_init(&h->vdsp, 8);
804 4 ff_cavsdsp_init(&h->cdsp, avctx);
805 4 ff_init_scantable_permutation(h->idsp.idct_permutation,
806 4 h->cdsp.idct_perm);
807 4 ff_init_scantable(h->idsp.idct_permutation, &h->scantable, ff_zigzag_direct);
808
809 4 h->avctx = avctx;
810 4 avctx->pix_fmt = AV_PIX_FMT_YUV420P;
811
812 4 h->cur.f = av_frame_alloc();
813 4 h->DPB[0].f = av_frame_alloc();
814 4 h->DPB[1].f = av_frame_alloc();
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 4 if (!h->cur.f || !h->DPB[0].f || !h->DPB[1].f) {
816 ✗ ff_cavs_end(avctx);
817 ✗ return AVERROR(ENOMEM);
818 }
819
820 4 h->luma_scan[0] = 0;
821 4 h->luma_scan[1] = 8;
822 4 h->intra_pred_l[INTRA_L_VERT] = intra_pred_vert;
823 4 h->intra_pred_l[INTRA_L_HORIZ] = intra_pred_horiz;
824 4 h->intra_pred_l[INTRA_L_LP] = intra_pred_lp;
825 4 h->intra_pred_l[INTRA_L_DOWN_LEFT] = intra_pred_down_left;
826 4 h->intra_pred_l[INTRA_L_DOWN_RIGHT] = intra_pred_down_right;
827 4 h->intra_pred_l[INTRA_L_LP_LEFT] = intra_pred_lp_left;
828 4 h->intra_pred_l[INTRA_L_LP_TOP] = intra_pred_lp_top;
829 4 h->intra_pred_l[INTRA_L_DC_128] = intra_pred_dc_128;
830 4 h->intra_pred_c[INTRA_C_LP] = intra_pred_lp;
831 4 h->intra_pred_c[INTRA_C_HORIZ] = intra_pred_horiz;
832 4 h->intra_pred_c[INTRA_C_VERT] = intra_pred_vert;
833 4 h->intra_pred_c[INTRA_C_PLANE] = intra_pred_plane;
834 4 h->intra_pred_c[INTRA_C_LP_LEFT] = intra_pred_lp_left;
835 4 h->intra_pred_c[INTRA_C_LP_TOP] = intra_pred_lp_top;
836 4 h->intra_pred_c[INTRA_C_DC_128] = intra_pred_dc_128;
837 4 h->mv[7] = un_mv;
838 4 h->mv[19] = un_mv;
839 4 return 0;
840 }
841
842 4 av_cold int ff_cavs_end(AVCodecContext *avctx)
843 {
844 4 AVSContext *h = avctx->priv_data;
845
846 4 av_frame_free(&h->cur.f);
847 4 av_frame_free(&h->DPB[0].f);
848 4 av_frame_free(&h->DPB[1].f);
849
850 4 av_freep(&h->top_qp);
851 4 av_freep(&h->top_mv[0]);
852 4 av_freep(&h->top_mv[1]);
853 4 av_freep(&h->top_pred_Y);
854 4 av_freep(&h->top_border_y);
855 4 av_freep(&h->top_border_u);
856 4 av_freep(&h->top_border_v);
857 4 av_freep(&h->col_mv);
858 4 av_freep(&h->col_type_base);
859 4 av_freep(&h->block);
860 4 av_freep(&h->edge_emu_buffer);
861 4 return 0;
862 }
863