FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/cavs.c
Date: 2022-07-05 19:52:29
Exec Total Coverage
Lines: 470 486 96.7%
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 "avcodec.h"
29 #include "golomb.h"
30 #include "h264chroma.h"
31 #include "idctdsp.h"
32 #include "mathops.h"
33 #include "qpeldsp.h"
34 #include "cavs.h"
35
36 static const uint8_t alpha_tab[64] = {
37 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 3, 3,
38 4, 4, 5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 18, 20,
39 22, 24, 26, 28, 30, 33, 33, 35, 35, 36, 37, 37, 39, 39, 42, 44,
40 46, 48, 50, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64
41 };
42
43 static const uint8_t beta_tab[64] = {
44 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2,
45 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6,
46 6, 7, 7, 7, 8, 8, 8, 9, 9, 10, 10, 11, 11, 12, 13, 14,
47 15, 16, 17, 18, 19, 20, 21, 22, 23, 23, 24, 24, 25, 25, 26, 27
48 };
49
50 static const uint8_t tc_tab[64] = {
51 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
52 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2,
53 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4,
54 5, 5, 5, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 9, 9, 9
55 };
56
57 /** mark block as unavailable, i.e. out of picture
58 * or not yet decoded */
59 static const cavs_vector un_mv = { 0, 0, 1, NOT_AVAIL };
60
61 static const int8_t left_modifier_l[8] = { 0, -1, 6, -1, -1, 7, 6, 7 };
62 static const int8_t top_modifier_l[8] = { -1, 1, 5, -1, -1, 5, 7, 7 };
63 static const int8_t left_modifier_c[7] = { 5, -1, 2, -1, 6, 5, 6 };
64 static const int8_t top_modifier_c[7] = { 4, 1, -1, -1, 4, 6, 6 };
65
66 /*****************************************************************************
67 *
68 * in-loop deblocking filter
69 *
70 ****************************************************************************/
71
72 1793782 static inline int get_bs(cavs_vector *mvP, cavs_vector *mvQ, int b)
73 {
74
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 1793782 if ((mvP->ref == REF_INTRA) || (mvQ->ref == REF_INTRA))
75 15674 return 2;
76
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 1778108 if((abs(mvP->x - mvQ->x) >= 4) ||
77
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 1673007 (abs(mvP->y - mvQ->y) >= 4) ||
78
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 1611712 (mvP->ref != mvQ->ref))
79 303544 return 1;
80
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 1474564 if (b) {
81 1217805 mvP += MV_BWD_OFFS;
82 1217805 mvQ += MV_BWD_OFFS;
83
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 1217805 if((abs(mvP->x - mvQ->x) >= 4) ||
84
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 1203525 (abs(mvP->y - mvQ->y) >= 4) ||
85
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 1195077 (mvP->ref != mvQ->ref))
86 67614 return 1;
87 }
88 1406950 return 0;
89 }
90
91 #define SET_PARAMS \
92 alpha = alpha_tab[av_clip_uintp2(qp_avg + h->alpha_offset, 6)]; \
93 beta = beta_tab[av_clip_uintp2(qp_avg + h->beta_offset, 6)]; \
94 tc = tc_tab[av_clip_uintp2(qp_avg + h->alpha_offset, 6)];
95
96 /**
97 * in-loop deblocking filter for a single macroblock
98 *
99 * boundary strength (bs) mapping:
100 *
101 * --4---5--
102 * 0 2 |
103 * | 6 | 7 |
104 * 1 3 |
105 * ---------
106 */
107 297745 void ff_cavs_filter(AVSContext *h, enum cavs_mb mb_type)
108 {
109 uint8_t bs[8];
110 int qp_avg, alpha, beta, tc;
111 int i;
112
113 /* save un-deblocked lines */
114 297745 h->topleft_border_y = h->top_border_y[h->mbx * 16 + 15];
115 297745 h->topleft_border_u = h->top_border_u[h->mbx * 10 + 8];
116 297745 h->topleft_border_v = h->top_border_v[h->mbx * 10 + 8];
117 297745 memcpy(&h->top_border_y[h->mbx * 16], h->cy + 15 * h->l_stride, 16);
118 297745 memcpy(&h->top_border_u[h->mbx * 10 + 1], h->cu + 7 * h->c_stride, 8);
119 297745 memcpy(&h->top_border_v[h->mbx * 10 + 1], h->cv + 7 * h->c_stride, 8);
120
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 2679705 for (i = 0; i < 8; i++) {
121 2381960 h->left_border_y[i * 2 + 1] = *(h->cy + 15 + (i * 2 + 0) * h->l_stride);
122 2381960 h->left_border_y[i * 2 + 2] = *(h->cy + 15 + (i * 2 + 1) * h->l_stride);
123 2381960 h->left_border_u[i + 1] = *(h->cu + 7 + i * h->c_stride);
124 2381960 h->left_border_v[i + 1] = *(h->cv + 7 + i * h->c_stride);
125 }
126
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 297745 if (!h->loop_filter_disable) {
127 /* determine bs */
128
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 297745 if (mb_type == I_8X8)
129 25344 memset(bs, 2, 8);
130 else {
131 272401 memset(bs, 0, 8);
132
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 272401 if (ff_cavs_partition_flags[mb_type] & SPLITV) {
133 175404 bs[2] = get_bs(&h->mv[MV_FWD_X0], &h->mv[MV_FWD_X1], mb_type > P_8X8);
134 175404 bs[3] = get_bs(&h->mv[MV_FWD_X2], &h->mv[MV_FWD_X3], mb_type > P_8X8);
135 }
136
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 272401 if (ff_cavs_partition_flags[mb_type] & SPLITH) {
137 176685 bs[6] = get_bs(&h->mv[MV_FWD_X0], &h->mv[MV_FWD_X2], mb_type > P_8X8);
138 176685 bs[7] = get_bs(&h->mv[MV_FWD_X1], &h->mv[MV_FWD_X3], mb_type > P_8X8);
139 }
140 272401 bs[0] = get_bs(&h->mv[MV_FWD_A1], &h->mv[MV_FWD_X0], mb_type > P_8X8);
141 272401 bs[1] = get_bs(&h->mv[MV_FWD_A3], &h->mv[MV_FWD_X2], mb_type > P_8X8);
142 272401 bs[4] = get_bs(&h->mv[MV_FWD_B2], &h->mv[MV_FWD_X0], mb_type > P_8X8);
143 272401 bs[5] = get_bs(&h->mv[MV_FWD_B3], &h->mv[MV_FWD_X1], mb_type > P_8X8);
144 }
145
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 297745 if (AV_RN64(bs)) {
146
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 134358 if (h->flags & A_AVAIL) {
147 127741 qp_avg = (h->qp + h->left_qp + 1) >> 1;
148 127741 SET_PARAMS;
149 127741 h->cdsp.cavs_filter_lv(h->cy, h->l_stride, alpha, beta, tc, bs[0], bs[1]);
150 127741 qp_avg = (ff_cavs_chroma_qp[h->qp] + ff_cavs_chroma_qp[h->left_qp] + 1) >> 1;
151 127741 SET_PARAMS;
152 127741 h->cdsp.cavs_filter_cv(h->cu, h->c_stride, alpha, beta, tc, bs[0], bs[1]);
153 127741 h->cdsp.cavs_filter_cv(h->cv, h->c_stride, alpha, beta, tc, bs[0], bs[1]);
154 }
155 134358 qp_avg = h->qp;
156 134358 SET_PARAMS;
157 134358 h->cdsp.cavs_filter_lv(h->cy + 8, h->l_stride, alpha, beta, tc, bs[2], bs[3]);
158 134358 h->cdsp.cavs_filter_lh(h->cy + 8 * h->l_stride, h->l_stride, alpha, beta, tc, bs[6], bs[7]);
159
160
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 134358 if (h->flags & B_AVAIL) {
161 126078 qp_avg = (h->qp + h->top_qp[h->mbx] + 1) >> 1;
162 126078 SET_PARAMS;
163 126078 h->cdsp.cavs_filter_lh(h->cy, h->l_stride, alpha, beta, tc, bs[4], bs[5]);
164 126078 qp_avg = (ff_cavs_chroma_qp[h->qp] + ff_cavs_chroma_qp[h->top_qp[h->mbx]] + 1) >> 1;
165 126078 SET_PARAMS;
166 126078 h->cdsp.cavs_filter_ch(h->cu, h->c_stride, alpha, beta, tc, bs[4], bs[5]);
167 126078 h->cdsp.cavs_filter_ch(h->cv, h->c_stride, alpha, beta, tc, bs[4], bs[5]);
168 }
169 }
170 }
171 297745 h->left_qp = h->qp;
172 297745 h->top_qp[h->mbx] = h->qp;
173 297745 }
174
175 #undef SET_PARAMS
176
177 /*****************************************************************************
178 *
179 * spatial intra prediction
180 *
181 ****************************************************************************/
182
183 101376 void ff_cavs_load_intra_pred_luma(AVSContext *h, uint8_t *top,
184 uint8_t **left, int block)
185 {
186 int i;
187
188
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 101376 switch (block) {
189 25344 case 0:
190 25344 *left = h->left_border_y;
191 25344 h->left_border_y[0] = h->left_border_y[1];
192 25344 memset(&h->left_border_y[17], h->left_border_y[16], 9);
193 25344 memcpy(&top[1], &h->top_border_y[h->mbx * 16], 16);
194 25344 top[17] = top[16];
195 25344 top[0] = top[1];
196
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 25344 if ((h->flags & A_AVAIL) && (h->flags & B_AVAIL))
197 24410 h->left_border_y[0] = top[0] = h->topleft_border_y;
198 25344 break;
199 25344 case 1:
200 25344 *left = h->intern_border_y;
201
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 228096 for (i = 0; i < 8; i++)
202 202752 h->intern_border_y[i + 1] = *(h->cy + 7 + i * h->l_stride);
203 25344 memset(&h->intern_border_y[9], h->intern_border_y[8], 9);
204 25344 h->intern_border_y[0] = h->intern_border_y[1];
205 25344 memcpy(&top[1], &h->top_border_y[h->mbx * 16 + 8], 8);
206
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 25344 if (h->flags & C_AVAIL)
207 24175 memcpy(&top[9], &h->top_border_y[(h->mbx + 1) * 16], 8);
208 else
209 1169 memset(&top[9], top[8], 9);
210 25344 top[17] = top[16];
211 25344 top[0] = top[1];
212
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 25344 if (h->flags & B_AVAIL)
213 24808 h->intern_border_y[0] = top[0] = h->top_border_y[h->mbx * 16 + 7];
214 25344 break;
215 25344 case 2:
216 25344 *left = &h->left_border_y[8];
217 25344 memcpy(&top[1], h->cy + 7 * h->l_stride, 16);
218 25344 top[17] = top[16];
219 25344 top[0] = top[1];
220
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 25344 if (h->flags & A_AVAIL)
221 24937 top[0] = h->left_border_y[8];
222 25344 break;
223 25344 case 3:
224 25344 *left = &h->intern_border_y[8];
225
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 228096 for (i = 0; i < 8; i++)
226 202752 h->intern_border_y[i + 9] = *(h->cy + 7 + (i + 8) * h->l_stride);
227 25344 memset(&h->intern_border_y[17], h->intern_border_y[16], 9);
228 25344 memcpy(&top[0], h->cy + 7 + 7 * h->l_stride, 9);
229 25344 memset(&top[9], top[8], 9);
230 25344 break;
231 }
232 101376 }
233
234 25344 void ff_cavs_load_intra_pred_chroma(AVSContext *h)
235 {
236 /* extend borders by one pixel */
237 25344 h->left_border_u[9] = h->left_border_u[8];
238 25344 h->left_border_v[9] = h->left_border_v[8];
239
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 25344 if(h->flags & C_AVAIL) {
240 24175 h->top_border_u[h->mbx*10 + 9] = h->top_border_u[h->mbx*10 + 11];
241 24175 h->top_border_v[h->mbx*10 + 9] = h->top_border_v[h->mbx*10 + 11];
242 } else {
243 1169 h->top_border_u[h->mbx * 10 + 9] = h->top_border_u[h->mbx * 10 + 8];
244 1169 h->top_border_v[h->mbx * 10 + 9] = h->top_border_v[h->mbx * 10 + 8];
245 }
246
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 25344 if((h->flags & A_AVAIL) && (h->flags & B_AVAIL)) {
247 24410 h->top_border_u[h->mbx * 10] = h->left_border_u[0] = h->topleft_border_u;
248 24410 h->top_border_v[h->mbx * 10] = h->left_border_v[0] = h->topleft_border_v;
249 } else {
250 934 h->left_border_u[0] = h->left_border_u[1];
251 934 h->left_border_v[0] = h->left_border_v[1];
252 934 h->top_border_u[h->mbx * 10] = h->top_border_u[h->mbx * 10 + 1];
253 934 h->top_border_v[h->mbx * 10] = h->top_border_v[h->mbx * 10 + 1];
254 }
255 25344 }
256
257 45576 static void intra_pred_vert(uint8_t *d, uint8_t *top, uint8_t *left, ptrdiff_t stride)
258 {
259 int y;
260 45576 uint64_t a = AV_RN64(&top[1]);
261
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 410184 for (y = 0; y < 8; y++)
262 364608 *((uint64_t *)(d + y * stride)) = a;
263 45576 }
264
265 33618 static void intra_pred_horiz(uint8_t *d, uint8_t *top, uint8_t *left, ptrdiff_t stride)
266 {
267 int y;
268 uint64_t a;
269
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 302562 for (y = 0; y < 8; y++) {
270 268944 a = left[y + 1] * 0x0101010101010101ULL;
271 268944 *((uint64_t *)(d + y * stride)) = a;
272 }
273 33618 }
274
275 27 static void intra_pred_dc_128(uint8_t *d, uint8_t *top, uint8_t *left, ptrdiff_t stride)
276 {
277 int y;
278 27 uint64_t a = 0x8080808080808080ULL;
279
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 243 for (y = 0; y < 8; y++)
280 216 *((uint64_t *)(d + y * stride)) = a;
281 27 }
282
283 2756 static void intra_pred_plane(uint8_t *d, uint8_t *top, uint8_t *left, ptrdiff_t stride)
284 {
285 int x, y, ia;
286 2756 int ih = 0;
287 2756 int iv = 0;
288 2756 const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;
289
290
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 13780 for (x = 0; x < 4; x++) {
291 11024 ih += (x + 1) * (top[5 + x] - top[3 - x]);
292 11024 iv += (x + 1) * (left[5 + x] - left[3 - x]);
293 }
294 2756 ia = (top[8] + left[8]) << 4;
295 2756 ih = (17 * ih + 16) >> 5;
296 2756 iv = (17 * iv + 16) >> 5;
297
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298
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299 176384 d[y * stride + x] = cm[(ia + (x - 3) * ih + (y - 3) * iv + 16) >> 5];
300 2756 }
301
302 #define LOWPASS(ARRAY, INDEX) \
303 ((ARRAY[(INDEX) - 1] + 2 * ARRAY[(INDEX)] + ARRAY[(INDEX) + 1] + 2) >> 2)
304
305 61656 static void intra_pred_lp(uint8_t *d, uint8_t *top, uint8_t *left, ptrdiff_t stride)
306 {
307 int x, y;
308
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309
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310 3945984 d[y * stride + x] = (LOWPASS(top, x + 1) + LOWPASS(left, y + 1)) >> 1;
311 61656 }
312
313 2887 static void intra_pred_down_left(uint8_t *d, uint8_t *top, uint8_t *left, ptrdiff_t stride)
314 {
315 int x, y;
316
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317
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318 184768 d[y * stride + x] = (LOWPASS(top, x + y + 2) + LOWPASS(left, x + y + 2)) >> 1;
319 2887 }
320
321 1826 static void intra_pred_down_right(uint8_t *d, uint8_t *top, uint8_t *left, ptrdiff_t stride)
322 {
323 int x, y;
324
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325
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326
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 116864 if (x == y)
327 14608 d[y * stride + x] = (left[1] + 2 * top[0] + top[1] + 2) >> 2;
328
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 102256 else if (x > y)
329 51128 d[y * stride + x] = LOWPASS(top, x - y);
330 else
331 51128 d[y * stride + x] = LOWPASS(left, y - x);
332 1826 }
333
334 2117 static void intra_pred_lp_left(uint8_t *d, uint8_t *top, uint8_t *left, ptrdiff_t stride)
335 {
336 int x, y;
337
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338
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339 135488 d[y * stride + x] = LOWPASS(left, y + 1);
340 2117 }
341
342 1601 static void intra_pred_lp_top(uint8_t *d, uint8_t *top, uint8_t *left, ptrdiff_t stride)
343 {
344 int x, y;
345
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346
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347 102464 d[y * stride + x] = LOWPASS(top, x + 1);
348 1601 }
349
350 #undef LOWPASS
351
352 2829 static inline void modify_pred(const int8_t *mod_table, int *mode)
353 {
354 2829 *mode = mod_table[*mode];
355
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 2829 if (*mode < 0) {
356 ✗ av_log(NULL, AV_LOG_ERROR, "Illegal intra prediction mode\n");
357 ✗ *mode = 0;
358 }
359 2829 }
360
361 25344 void ff_cavs_modify_mb_i(AVSContext *h, int *pred_mode_uv)
362 {
363 /* save pred modes before they get modified */
364 25344 h->pred_mode_Y[3] = h->pred_mode_Y[5];
365 25344 h->pred_mode_Y[6] = h->pred_mode_Y[8];
366 25344 h->top_pred_Y[h->mbx * 2 + 0] = h->pred_mode_Y[7];
367 25344 h->top_pred_Y[h->mbx * 2 + 1] = h->pred_mode_Y[8];
368
369 /* modify pred modes according to availability of neighbour samples */
370
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 25344 if (!(h->flags & A_AVAIL)) {
371 407 modify_pred(left_modifier_l, &h->pred_mode_Y[4]);
372 407 modify_pred(left_modifier_l, &h->pred_mode_Y[7]);
373 407 modify_pred(left_modifier_c, pred_mode_uv);
374 }
375
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 25344 if (!(h->flags & B_AVAIL)) {
376 536 modify_pred(top_modifier_l, &h->pred_mode_Y[4]);
377 536 modify_pred(top_modifier_l, &h->pred_mode_Y[5]);
378 536 modify_pred(top_modifier_c, pred_mode_uv);
379 }
380 25344 }
381
382 /*****************************************************************************
383 *
384 * motion compensation
385 *
386 ****************************************************************************/
387
388 1448997 static inline void mc_dir_part(AVSContext *h, AVFrame *pic, int chroma_height,
389 int delta, int list, uint8_t *dest_y,
390 uint8_t *dest_cb, uint8_t *dest_cr,
391 int src_x_offset, int src_y_offset,
392 qpel_mc_func *qpix_op,
393 h264_chroma_mc_func chroma_op, cavs_vector *mv)
394 {
395 1448997 const int mx = mv->x + src_x_offset * 8;
396 1448997 const int my = mv->y + src_y_offset * 8;
397 1448997 const int luma_xy = (mx & 3) + ((my & 3) << 2);
398 1448997 uint8_t *src_y = pic->data[0] + (mx >> 2) + (my >> 2) * h->l_stride;
399 1448997 uint8_t *src_cb = pic->data[1] + (mx >> 3) + (my >> 3) * h->c_stride;
400 1448997 uint8_t *src_cr = pic->data[2] + (mx >> 3) + (my >> 3) * h->c_stride;
401 1448997 int extra_width = 0;
402 1448997 int extra_height = extra_width;
403 1448997 const int full_mx = mx >> 2;
404 1448997 const int full_my = my >> 2;
405 1448997 const int pic_width = 16 * h->mb_width;
406 1448997 const int pic_height = 16 * h->mb_height;
407 1448997 int emu = 0;
408
409
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 1448997 if (!pic->data[0])
410 ✗ return;
411
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 1448997 if (mx & 7)
412 120702 extra_width -= 3;
413
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 1448997 if (my & 7)
414 125744 extra_height -= 3;
415
416
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 1448997 if (full_mx < 0 - extra_width ||
417
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 1448061 full_my < 0 - extra_height ||
418
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 1446581 full_mx + 16 /* FIXME */ > pic_width + extra_width ||
419
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 1431388 full_my + 16 /* FIXME */ > pic_height + extra_height) {
420 37368 h->vdsp.emulated_edge_mc(h->edge_emu_buffer,
421 37368 src_y - 2 - 2 * h->l_stride,
422 h->l_stride, h->l_stride,
423 16 + 5, 16 + 5 /* FIXME */,
424 full_mx - 2, full_my - 2,
425 pic_width, pic_height);
426 37368 src_y = h->edge_emu_buffer + 2 + 2 * h->l_stride;
427 37368 emu = 1;
428 }
429
430 // FIXME try variable height perhaps?
431 1448997 qpix_op[luma_xy](dest_y, src_y, h->l_stride);
432
433
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 1448997 if (emu) {
434 37368 h->vdsp.emulated_edge_mc(h->edge_emu_buffer, src_cb,
435 h->c_stride, h->c_stride,
436 9, 9 /* FIXME */,
437 mx >> 3, my >> 3,
438 pic_width >> 1, pic_height >> 1);
439 37368 src_cb = h->edge_emu_buffer;
440 }
441 1448997 chroma_op(dest_cb, src_cb, h->c_stride, chroma_height, mx & 7, my & 7);
442
443
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 1448997 if (emu) {
444 37368 h->vdsp.emulated_edge_mc(h->edge_emu_buffer, src_cr,
445 h->c_stride, h->c_stride,
446 9, 9 /* FIXME */,
447 mx >> 3, my >> 3,
448 pic_width >> 1, pic_height >> 1);
449 37368 src_cr = h->edge_emu_buffer;
450 }
451 1448997 chroma_op(dest_cr, src_cr, h->c_stride, chroma_height, mx & 7, my & 7);
452 }
453
454 832240 static inline void mc_part_std(AVSContext *h, int chroma_height, int delta,
455 uint8_t *dest_y,
456 uint8_t *dest_cb,
457 uint8_t *dest_cr,
458 int x_offset, int y_offset,
459 qpel_mc_func *qpix_put,
460 h264_chroma_mc_func chroma_put,
461 qpel_mc_func *qpix_avg,
462 h264_chroma_mc_func chroma_avg,
463 cavs_vector *mv)
464 {
465 832240 qpel_mc_func *qpix_op = qpix_put;
466 832240 h264_chroma_mc_func chroma_op = chroma_put;
467
468 832240 dest_y += x_offset * 2 + y_offset * h->l_stride * 2;
469 832240 dest_cb += x_offset + y_offset * h->c_stride;
470 832240 dest_cr += x_offset + y_offset * h->c_stride;
471 832240 x_offset += 8 * h->mbx;
472 832240 y_offset += 8 * h->mby;
473
474
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 832240 if (mv->ref >= 0) {
475 788976 AVFrame *ref = h->DPB[mv->ref].f;
476 788976 mc_dir_part(h, ref, chroma_height, delta, 0,
477 dest_y, dest_cb, dest_cr, x_offset, y_offset,
478 qpix_op, chroma_op, mv);
479
480 788976 qpix_op = qpix_avg;
481 788976 chroma_op = chroma_avg;
482 }
483
484
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 832240 if ((mv + MV_BWD_OFFS)->ref >= 0) {
485 660021 AVFrame *ref = h->DPB[0].f;
486 660021 mc_dir_part(h, ref, chroma_height, delta, 1,
487 dest_y, dest_cb, dest_cr, x_offset, y_offset,
488 qpix_op, chroma_op, mv + MV_BWD_OFFS);
489 }
490 832240 }
491
492 272401 void ff_cavs_inter(AVSContext *h, enum cavs_mb mb_type)
493 {
494
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 272401 if (ff_cavs_partition_flags[mb_type] == 0) { // 16x16
495 85788 mc_part_std(h, 8, 0, h->cy, h->cu, h->cv, 0, 0,
496 85788 h->cdsp.put_cavs_qpel_pixels_tab[0],
497 h->h264chroma.put_h264_chroma_pixels_tab[0],
498 85788 h->cdsp.avg_cavs_qpel_pixels_tab[0],
499 h->h264chroma.avg_h264_chroma_pixels_tab[0],
500 &h->mv[MV_FWD_X0]);
501 } else {
502 186613 mc_part_std(h, 4, 0, h->cy, h->cu, h->cv, 0, 0,
503 186613 h->cdsp.put_cavs_qpel_pixels_tab[1],
504 h->h264chroma.put_h264_chroma_pixels_tab[1],
505 186613 h->cdsp.avg_cavs_qpel_pixels_tab[1],
506 h->h264chroma.avg_h264_chroma_pixels_tab[1],
507 &h->mv[MV_FWD_X0]);
508 186613 mc_part_std(h, 4, 0, h->cy, h->cu, h->cv, 4, 0,
509 186613 h->cdsp.put_cavs_qpel_pixels_tab[1],
510 h->h264chroma.put_h264_chroma_pixels_tab[1],
511 186613 h->cdsp.avg_cavs_qpel_pixels_tab[1],
512 h->h264chroma.avg_h264_chroma_pixels_tab[1],
513 &h->mv[MV_FWD_X1]);
514 186613 mc_part_std(h, 4, 0, h->cy, h->cu, h->cv, 0, 4,
515 186613 h->cdsp.put_cavs_qpel_pixels_tab[1],
516 h->h264chroma.put_h264_chroma_pixels_tab[1],
517 186613 h->cdsp.avg_cavs_qpel_pixels_tab[1],
518 h->h264chroma.avg_h264_chroma_pixels_tab[1],
519 &h->mv[MV_FWD_X2]);
520 186613 mc_part_std(h, 4, 0, h->cy, h->cu, h->cv, 4, 4,
521 186613 h->cdsp.put_cavs_qpel_pixels_tab[1],
522 h->h264chroma.put_h264_chroma_pixels_tab[1],
523 186613 h->cdsp.avg_cavs_qpel_pixels_tab[1],
524 h->h264chroma.avg_h264_chroma_pixels_tab[1],
525 &h->mv[MV_FWD_X3]);
526 }
527 272401 }
528
529 /*****************************************************************************
530 *
531 * motion vector prediction
532 *
533 ****************************************************************************/
534
535 510849 static inline void scale_mv(AVSContext *h, int *d_x, int *d_y,
536 cavs_vector *src, int distp)
537 {
538 510849 int64_t den = h->scale_den[FFMAX(src->ref, 0)];
539 510849 *d_x = (src->x * distp * den + 256 + FF_SIGNBIT(src->x)) >> 9;
540 510849 *d_y = (src->y * distp * den + 256 + FF_SIGNBIT(src->y)) >> 9;
541 510849 }
542
543 170283 static inline void mv_pred_median(AVSContext *h,
544 cavs_vector *mvP,
545 cavs_vector *mvA,
546 cavs_vector *mvB,
547 cavs_vector *mvC)
548 {
549 int ax, ay, bx, by, cx, cy;
550 int len_ab, len_bc, len_ca, len_mid;
551
552 /* scale candidates according to their temporal span */
553 170283 scale_mv(h, &ax, &ay, mvA, mvP->dist);
554 170283 scale_mv(h, &bx, &by, mvB, mvP->dist);
555 170283 scale_mv(h, &cx, &cy, mvC, mvP->dist);
556 /* find the geometrical median of the three candidates */
557 170283 len_ab = abs(ax - bx) + abs(ay - by);
558 170283 len_bc = abs(bx - cx) + abs(by - cy);
559 170283 len_ca = abs(cx - ax) + abs(cy - ay);
560 170283 len_mid = mid_pred(len_ab, len_bc, len_ca);
561
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 170283 if (len_mid == len_ab) {
562 137907 mvP->x = cx;
563 137907 mvP->y = cy;
564
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 32376 } else if (len_mid == len_bc) {
565 24630 mvP->x = ax;
566 24630 mvP->y = ay;
567 } else {
568 7746 mvP->x = bx;
569 7746 mvP->y = by;
570 }
571 170283 }
572
573 238918 void ff_cavs_mv(AVSContext *h, enum cavs_mv_loc nP, enum cavs_mv_loc nC,
574 enum cavs_mv_pred mode, enum cavs_block size, int ref)
575 {
576 238918 cavs_vector *mvP = &h->mv[nP];
577 238918 cavs_vector *mvA = &h->mv[nP-1];
578 238918 cavs_vector *mvB = &h->mv[nP-4];
579 238918 cavs_vector *mvC = &h->mv[nC];
580 238918 const cavs_vector *mvP2 = NULL;
581
582 238918 mvP->ref = ref;
583 238918 mvP->dist = h->dist[mvP->ref];
584
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 238918 if (mvC->ref == NOT_AVAIL || (nP == MV_FWD_X3) || (nP == MV_BWD_X3 ))
585 28240 mvC = &h->mv[nP - 5]; // set to top-left (mvD)
586
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 238918 if (mode == MV_PRED_PSKIP &&
587
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 20801 (mvA->ref == NOT_AVAIL ||
588
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 20081 mvB->ref == NOT_AVAIL ||
589
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 19308 (mvA->x | mvA->y | mvA->ref) == 0 ||
590
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 850 (mvB->x | mvB->y | mvB->ref) == 0)) {
591 20434 mvP2 = &un_mv;
592 /* if there is only one suitable candidate, take it */
593
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 218484 } else if (mvA->ref >= 0 && mvB->ref < 0 && mvC->ref < 0) {
594 11224 mvP2 = mvA;
595
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 207260 } else if (mvA->ref < 0 && mvB->ref >= 0 && mvC->ref < 0) {
596 4577 mvP2 = mvB;
597
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 202683 } else if (mvA->ref < 0 && mvB->ref < 0 && mvC->ref >= 0) {
598 3525 mvP2 = mvC;
599
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 199158 } else if (mode == MV_PRED_LEFT && mvA->ref == ref) {
600 14269 mvP2 = mvA;
601
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 184889 } else if (mode == MV_PRED_TOP && mvB->ref == ref) {
602 7898 mvP2 = mvB;
603
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 176991 } else if (mode == MV_PRED_TOPRIGHT && mvC->ref == ref) {
604 6708 mvP2 = mvC;
605 }
606
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 238918 if (mvP2) {
607 68635 mvP->x = mvP2->x;
608 68635 mvP->y = mvP2->y;
609 } else
610 170283 mv_pred_median(h, mvP, mvA, mvB, mvC);
611
612
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 238918 if (mode < MV_PRED_PSKIP) {
613 189273 int mx = get_se_golomb(&h->gb) + (unsigned)mvP->x;
614 189273 int my = get_se_golomb(&h->gb) + (unsigned)mvP->y;
615
616
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 189273 if (mx != (int16_t)mx || my != (int16_t)my) {
617 ✗ av_log(h->avctx, AV_LOG_ERROR, "MV %d %d out of supported range\n", mx, my);
618 } else {
619 189273 mvP->x = mx;
620 189273 mvP->y = my;
621 }
622 }
623 238918 set_mvs(mvP, size);
624 238918 }
625
626 /*****************************************************************************
627 *
628 * macroblock level
629 *
630 ****************************************************************************/
631
632 /**
633 * initialise predictors for motion vectors and intra prediction
634 */
635 297745 void ff_cavs_init_mb(AVSContext *h)
636 {
637 int i;
638
639 /* copy predictors from top line (MB B and C) into cache */
640
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 1190980 for (i = 0; i < 3; i++) {
641 893235 h->mv[MV_FWD_B2 + i] = h->top_mv[0][h->mbx * 2 + i];
642 893235 h->mv[MV_BWD_B2 + i] = h->top_mv[1][h->mbx * 2 + i];
643 }
644 297745 h->pred_mode_Y[1] = h->top_pred_Y[h->mbx * 2 + 0];
645 297745 h->pred_mode_Y[2] = h->top_pred_Y[h->mbx * 2 + 1];
646 /* clear top predictors if MB B is not available */
647
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 297745 if (!(h->flags & B_AVAIL)) {
648 8280 h->mv[MV_FWD_B2] = un_mv;
649 8280 h->mv[MV_FWD_B3] = un_mv;
650 8280 h->mv[MV_BWD_B2] = un_mv;
651 8280 h->mv[MV_BWD_B3] = un_mv;
652 8280 h->pred_mode_Y[1] = h->pred_mode_Y[2] = NOT_AVAIL;
653 8280 h->flags &= ~(C_AVAIL | D_AVAIL);
654
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 289465 } else if (h->mbx) {
655 283032 h->flags |= D_AVAIL;
656 }
657
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 297745 if (h->mbx == h->mb_width - 1) // MB C not available
658 6616 h->flags &= ~C_AVAIL;
659 /* clear top-right predictors if MB C is not available */
660
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 297745 if (!(h->flags & C_AVAIL)) {
661 14712 h->mv[MV_FWD_C2] = un_mv;
662 14712 h->mv[MV_BWD_C2] = un_mv;
663 }
664 /* clear top-left predictors if MB D is not available */
665
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 297745 if (!(h->flags & D_AVAIL)) {
666 14713 h->mv[MV_FWD_D3] = un_mv;
667 14713 h->mv[MV_BWD_D3] = un_mv;
668 }
669 297745 }
670
671 /**
672 * save predictors for later macroblocks and increase
673 * macroblock address
674 * @return 0 if end of frame is reached, 1 otherwise
675 */
676 297745 int ff_cavs_next_mb(AVSContext *h)
677 {
678 int i;
679
680 297745 h->flags |= A_AVAIL;
681 297745 h->cy += 16;
682 297745 h->cu += 8;
683 297745 h->cv += 8;
684 /* copy mvs as predictors to the left */
685
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 2084215 for (i = 0; i <= 20; i += 4)
686 1786470 h->mv[i] = h->mv[i + 2];
687 /* copy bottom mvs from cache to top line */
688 297745 h->top_mv[0][h->mbx * 2 + 0] = h->mv[MV_FWD_X2];
689 297745 h->top_mv[0][h->mbx * 2 + 1] = h->mv[MV_FWD_X3];
690 297745 h->top_mv[1][h->mbx * 2 + 0] = h->mv[MV_BWD_X2];
691 297745 h->top_mv[1][h->mbx * 2 + 1] = h->mv[MV_BWD_X3];
692 /* next MB address */
693 297745 h->mbidx++;
694 297745 h->mbx++;
695
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 297745 if (h->mbx == h->mb_width) { // New mb line
696 6616 h->flags = B_AVAIL | C_AVAIL;
697 /* clear left pred_modes */
698 6616 h->pred_mode_Y[3] = h->pred_mode_Y[6] = NOT_AVAIL;
699 /* clear left mv predictors */
700
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 46312 for (i = 0; i <= 20; i += 4)
701 39696 h->mv[i] = un_mv;
702 6616 h->mbx = 0;
703 6616 h->mby++;
704 /* re-calculate sample pointers */
705 6616 h->cy = h->cur.f->data[0] + h->mby * 16 * h->l_stride;
706 6616 h->cu = h->cur.f->data[1] + h->mby * 8 * h->c_stride;
707 6616 h->cv = h->cur.f->data[2] + h->mby * 8 * h->c_stride;
708
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 6616 if (h->mby == h->mb_height) { // Frame end
709 183 return 0;
710 }
711 }
712 297562 return 1;
713 }
714
715 /*****************************************************************************
716 *
717 * frame level
718 *
719 ****************************************************************************/
720
721 184 int ff_cavs_init_pic(AVSContext *h)
722 {
723 int i;
724
725 /* clear some predictors */
726
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 1288 for (i = 0; i <= 20; i += 4)
727 1104 h->mv[i] = un_mv;
728 184 h->mv[MV_BWD_X0] = ff_cavs_dir_mv;
729 184 set_mvs(&h->mv[MV_BWD_X0], BLK_16X16);
730 184 h->mv[MV_FWD_X0] = ff_cavs_dir_mv;
731 184 set_mvs(&h->mv[MV_FWD_X0], BLK_16X16);
732 184 h->pred_mode_Y[3] = h->pred_mode_Y[6] = NOT_AVAIL;
733 184 h->cy = h->cur.f->data[0];
734 184 h->cu = h->cur.f->data[1];
735 184 h->cv = h->cur.f->data[2];
736 184 h->l_stride = h->cur.f->linesize[0];
737 184 h->c_stride = h->cur.f->linesize[1];
738 184 h->luma_scan[2] = 8 * h->l_stride;
739 184 h->luma_scan[3] = 8 * h->l_stride + 8;
740 184 h->mbx = h->mby = h->mbidx = 0;
741 184 h->flags = 0;
742
743 184 return 0;
744 }
745
746 /*****************************************************************************
747 *
748 * headers and interface
749 *
750 ****************************************************************************/
751
752 /**
753 * some predictions require data from the top-neighbouring macroblock.
754 * this data has to be stored for one complete row of macroblocks
755 * and this storage space is allocated here
756 */
757 4 int ff_cavs_init_top_lines(AVSContext *h)
758 {
759 /* alloc top line of predictors */
760 4 h->top_qp = av_mallocz(h->mb_width);
761 4 h->top_mv[0] = av_calloc(h->mb_width * 2 + 1, sizeof(cavs_vector));
762 4 h->top_mv[1] = av_calloc(h->mb_width * 2 + 1, sizeof(cavs_vector));
763 4 h->top_pred_Y = av_calloc(h->mb_width * 2, sizeof(*h->top_pred_Y));
764 4 h->top_border_y = av_calloc(h->mb_width + 1, 16);
765 4 h->top_border_u = av_calloc(h->mb_width, 10);
766 4 h->top_border_v = av_calloc(h->mb_width, 10);
767
768 /* alloc space for co-located MVs and types */
769 4 h->col_mv = av_calloc(h->mb_width * h->mb_height,
770 4 * sizeof(*h->col_mv));
771 4 h->col_type_base = av_mallocz(h->mb_width * h->mb_height);
772 4 h->block = av_mallocz(64 * sizeof(int16_t));
773
774
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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) {
777 ✗ av_freep(&h->top_qp);
778 ✗ av_freep(&h->top_mv[0]);
779 ✗ av_freep(&h->top_mv[1]);
780 ✗ av_freep(&h->top_pred_Y);
781 ✗ av_freep(&h->top_border_y);
782 ✗ av_freep(&h->top_border_u);
783 ✗ av_freep(&h->top_border_v);
784 ✗ av_freep(&h->col_mv);
785 ✗ av_freep(&h->col_type_base);
786 ✗ av_freep(&h->block);
787 ✗ return AVERROR(ENOMEM);
788 }
789 4 return 0;
790 }
791
792 4 av_cold int ff_cavs_init(AVCodecContext *avctx)
793 {
794 4 AVSContext *h = avctx->priv_data;
795
796 4 ff_blockdsp_init(&h->bdsp, avctx);
797 4 ff_h264chroma_init(&h->h264chroma, 8);
798 4 ff_idctdsp_init(&h->idsp, avctx);
799 4 ff_videodsp_init(&h->vdsp, 8);
800 4 ff_cavsdsp_init(&h->cdsp, avctx);
801 4 ff_init_scantable_permutation(h->idsp.idct_permutation,
802 4 h->cdsp.idct_perm);
803 4 ff_init_scantable(h->idsp.idct_permutation, &h->scantable, ff_zigzag_direct);
804
805 4 h->avctx = avctx;
806 4 avctx->pix_fmt = AV_PIX_FMT_YUV420P;
807
808 4 h->cur.f = av_frame_alloc();
809 4 h->DPB[0].f = av_frame_alloc();
810 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)
812 ✗ return AVERROR(ENOMEM);
813
814 4 h->luma_scan[0] = 0;
815 4 h->luma_scan[1] = 8;
816 4 h->intra_pred_l[INTRA_L_VERT] = intra_pred_vert;
817 4 h->intra_pred_l[INTRA_L_HORIZ] = intra_pred_horiz;
818 4 h->intra_pred_l[INTRA_L_LP] = intra_pred_lp;
819 4 h->intra_pred_l[INTRA_L_DOWN_LEFT] = intra_pred_down_left;
820 4 h->intra_pred_l[INTRA_L_DOWN_RIGHT] = intra_pred_down_right;
821 4 h->intra_pred_l[INTRA_L_LP_LEFT] = intra_pred_lp_left;
822 4 h->intra_pred_l[INTRA_L_LP_TOP] = intra_pred_lp_top;
823 4 h->intra_pred_l[INTRA_L_DC_128] = intra_pred_dc_128;
824 4 h->intra_pred_c[INTRA_C_LP] = intra_pred_lp;
825 4 h->intra_pred_c[INTRA_C_HORIZ] = intra_pred_horiz;
826 4 h->intra_pred_c[INTRA_C_VERT] = intra_pred_vert;
827 4 h->intra_pred_c[INTRA_C_PLANE] = intra_pred_plane;
828 4 h->intra_pred_c[INTRA_C_LP_LEFT] = intra_pred_lp_left;
829 4 h->intra_pred_c[INTRA_C_LP_TOP] = intra_pred_lp_top;
830 4 h->intra_pred_c[INTRA_C_DC_128] = intra_pred_dc_128;
831 4 h->mv[7] = un_mv;
832 4 h->mv[19] = un_mv;
833 4 return 0;
834 }
835
836 4 av_cold int ff_cavs_end(AVCodecContext *avctx)
837 {
838 4 AVSContext *h = avctx->priv_data;
839
840 4 av_frame_free(&h->cur.f);
841 4 av_frame_free(&h->DPB[0].f);
842 4 av_frame_free(&h->DPB[1].f);
843
844 4 av_freep(&h->top_qp);
845 4 av_freep(&h->top_mv[0]);
846 4 av_freep(&h->top_mv[1]);
847 4 av_freep(&h->top_pred_Y);
848 4 av_freep(&h->top_border_y);
849 4 av_freep(&h->top_border_u);
850 4 av_freep(&h->top_border_v);
851 4 av_freep(&h->col_mv);
852 4 av_freep(&h->col_type_base);
853 4 av_freep(&h->block);
854 4 av_freep(&h->edge_emu_buffer);
855 4 return 0;
856 }
857