FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/vvc/dec.c
Date: 2025-07-12 02:25:37
Exec Total Coverage
Lines: 649 767 84.6%
Functions: 56 56 100.0%
Branches: 387 561 69.0%

Line Branch Exec Source
1 /*
2 * VVC video decoder
3 *
4 * Copyright (C) 2021 Nuo Mi
5 * Copyright (C) 2022 Xu Mu
6 *
7 * This file is part of FFmpeg.
8 *
9 * FFmpeg is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * FFmpeg is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24 #include "libavcodec/bytestream.h"
25 #include "libavcodec/codec_internal.h"
26 #include "libavcodec/decode.h"
27 #include "libavcodec/hwaccel_internal.h"
28 #include "libavcodec/hwconfig.h"
29 #include "libavcodec/profiles.h"
30 #include "libavutil/refstruct.h"
31 #include "libavcodec/aom_film_grain.h"
32 #include "libavcodec/thread.h"
33 #include "libavutil/cpu.h"
34 #include "libavutil/mem.h"
35 #include "libavutil/thread.h"
36 #include "libavutil/film_grain_params.h"
37
38 #include "dec.h"
39 #include "ctu.h"
40 #include "data.h"
41 #include "refs.h"
42 #include "thread.h"
43 #include "config_components.h"
44
45 #define TAB_MAX 32
46
47 typedef struct Tab {
48 void **tab;
49 size_t size;
50 } Tab;
51
52 typedef struct TabList {
53 Tab tabs[TAB_MAX];
54 int nb_tabs;
55
56 int zero;
57 int realloc;
58 } TabList;
59
60 #define TL_ADD(t, s) do { \
61 av_assert0(l->nb_tabs < TAB_MAX); \
62 l->tabs[l->nb_tabs].tab = (void**)&fc->tab.t; \
63 l->tabs[l->nb_tabs].size = sizeof(*fc->tab.t) * (s); \
64 l->nb_tabs++; \
65 } while (0)
66
67 28721 static void tl_init(TabList *l, const int zero, const int realloc)
68 {
69 28721 l->nb_tabs = 0;
70 28721 l->zero = zero;
71 28721 l->realloc = realloc;
72 28721 }
73
74 11235 static int tl_free(TabList *l)
75 {
76
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79482 for (int i = 0; i < l->nb_tabs; i++)
77 68247 av_freep(l->tabs[i].tab);
78
79 11235 return 0;
80 }
81
82 10571 static int tl_create(TabList *l)
83 {
84
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10571 if (l->realloc) {
85 3491 tl_free(l);
86
87
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24470 for (int i = 0; i < l->nb_tabs; i++) {
88 20979 Tab *t = l->tabs + i;
89
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20979 *t->tab = l->zero ? av_mallocz(t->size) : av_malloc(t->size);
90
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20979 if (!*t->tab)
91 return AVERROR(ENOMEM);
92 }
93 }
94 10571 return 0;
95 }
96
97 10406 static int tl_zero(TabList *l)
98 {
99
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10406 if (l->zero) {
100
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20968 for (int i = 0; i < l->nb_tabs; i++) {
101 16199 Tab *t = l->tabs + i;
102 16199 memset(*t->tab, 0, t->size);
103 }
104 }
105 10406 return 0;
106 }
107
108 2611 static void ctu_nz_tl_init(TabList *l, VVCFrameContext *fc)
109 {
110 2611 const VVCSPS *sps = fc->ps.sps;
111 2611 const VVCPPS *pps = fc->ps.pps;
112
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2611 const int ctu_size = sps ? (1 << sps->ctb_log2_size_y << sps->ctb_log2_size_y) : 0;
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2611 const int ctu_count = pps ? pps->ctb_count : 0;
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2611 const int changed = fc->tab.sz.ctu_count != ctu_count || fc->tab.sz.ctu_size != ctu_size;
115
116 2611 tl_init(l, 0, changed);
117
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2611 TL_ADD(cus, ctu_count);
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2611 TL_ADD(ctus, ctu_count);
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2611 TL_ADD(deblock, ctu_count);
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2611 TL_ADD(sao, ctu_count);
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2611 TL_ADD(alf, ctu_count);
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2611 TL_ADD(slice_idx, ctu_count);
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2611 TL_ADD(coeffs, ctu_count * ctu_size * VVC_MAX_SAMPLE_ARRAYS);
125 2611 }
126
127 2611 static void min_cb_tl_init(TabList *l, VVCFrameContext *fc)
128 {
129 2611 const VVCPPS *pps = fc->ps.pps;
130
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2611 const int pic_size_in_min_cb = pps ? pps->min_cb_width * pps->min_cb_height : 0;
131 2611 const int changed = fc->tab.sz.pic_size_in_min_cb != pic_size_in_min_cb;
132
133 2611 tl_init(l, 1, changed);
134
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2611 TL_ADD(imf, pic_size_in_min_cb);
136
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7833 for (int i = LUMA; i <= CHROMA; i++)
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5222 TL_ADD(cb_width[i], pic_size_in_min_cb); //is_a0_available requires this
139 2611 }
140
141 2611 static void min_cb_nz_tl_init(TabList *l, VVCFrameContext *fc)
142 {
143 2611 const VVCPPS *pps = fc->ps.pps;
144
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2611 const int pic_size_in_min_cb = pps ? pps->min_cb_width * pps->min_cb_height : 0;
145 2611 const int changed = fc->tab.sz.pic_size_in_min_cb != pic_size_in_min_cb;
146
147 2611 tl_init(l, 0, changed);
148
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2611 TL_ADD(skip, pic_size_in_min_cb);
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2611 TL_ADD(ipm, pic_size_in_min_cb);
151
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7833 for (int i = LUMA; i <= CHROMA; i++) {
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5222 TL_ADD(cqt_depth[i], pic_size_in_min_cb);
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5222 TL_ADD(cb_pos_x[i], pic_size_in_min_cb);
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5222 TL_ADD(cb_pos_y[i], pic_size_in_min_cb);
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5222 TL_ADD(cb_height[i], pic_size_in_min_cb);
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5222 TL_ADD(cp_mv[i], pic_size_in_min_cb * MAX_CONTROL_POINTS);
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5222 TL_ADD(cpm[i], pic_size_in_min_cb);
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5222 TL_ADD(pcmf[i], pic_size_in_min_cb);
160 }
161 // For luma, qp can only change at the CU level, so the qp tab size is related to the CU.
162
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2611 TL_ADD(qp[LUMA], pic_size_in_min_cb);
163 2611 }
164
165 2611 static void min_pu_tl_init(TabList *l, VVCFrameContext *fc)
166 {
167 2611 const VVCPPS *pps = fc->ps.pps;
168
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2611 const int pic_size_in_min_pu = pps ? pps->min_pu_width * pps->min_pu_height : 0;
169 2611 const int changed = fc->tab.sz.pic_size_in_min_pu != pic_size_in_min_pu;
170
171 2611 tl_init(l, 1, changed);
172
173
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2611 TL_ADD(iaf, pic_size_in_min_pu);
174 2611 }
175
176 2611 static void min_pu_nz_tl_init(TabList *l, VVCFrameContext *fc)
177 {
178 2611 const VVCPPS *pps = fc->ps.pps;
179
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2611 const int pic_size_in_min_pu = pps ? pps->min_pu_width * pps->min_pu_height : 0;
180 2611 const int changed = fc->tab.sz.pic_size_in_min_pu != pic_size_in_min_pu;
181
182 2611 tl_init(l, 0, changed);
183
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2611 TL_ADD(msf, pic_size_in_min_pu);
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2611 TL_ADD(mmi, pic_size_in_min_pu);
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2611 TL_ADD(mvf, pic_size_in_min_pu);
187 2611 }
188
189 2611 static void min_tu_tl_init(TabList *l, VVCFrameContext *fc)
190 {
191 2611 const VVCPPS *pps = fc->ps.pps;
192
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2611 const int pic_size_in_min_tu = pps ? pps->min_tu_width * pps->min_tu_height : 0;
193 2611 const int changed = fc->tab.sz.pic_size_in_min_tu != pic_size_in_min_tu;
194
195 2611 tl_init(l, 1, changed);
196
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2611 TL_ADD(tu_joint_cbcr_residual_flag, pic_size_in_min_tu);
198
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10444 for (int i = 0; i < VVC_MAX_SAMPLE_ARRAYS; i++) {
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7833 TL_ADD(tu_coded_flag[i], pic_size_in_min_tu);
201
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23499 for (int vertical = 0; vertical < 2; vertical++)
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15666 TL_ADD(bs[vertical][i], pic_size_in_min_tu);
204 }
205 2611 }
206
207 2611 static void min_tu_nz_tl_init(TabList *l, VVCFrameContext *fc)
208 {
209 2611 const VVCPPS *pps = fc->ps.pps;
210
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2611 const int pic_size_in_min_tu = pps ? pps->min_tu_width * pps->min_tu_height : 0;
211 2611 const int changed = fc->tab.sz.pic_size_in_min_tu != pic_size_in_min_tu;
212
213 2611 tl_init(l, 0, changed);
214
215
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7833 for (int i = LUMA; i <= CHROMA; i++) {
216
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5222 TL_ADD(tb_width[i], pic_size_in_min_tu);
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5222 TL_ADD(tb_height[i], pic_size_in_min_tu);
218 }
219
220
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7833 for (int vertical = 0; vertical < 2; vertical++) {
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5222 TL_ADD(max_len_p[vertical], pic_size_in_min_tu);
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5222 TL_ADD(max_len_q[vertical], pic_size_in_min_tu);
223 }
224
225 // For chroma, considering the joint CbCr, the QP tab size is related to the TU.
226
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7833 for (int i = CB; i < VVC_MAX_SAMPLE_ARRAYS; i++)
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5222 TL_ADD(qp[i], pic_size_in_min_tu);
228 2611 }
229
230 2611 static void pixel_buffer_nz_tl_init(TabList *l, VVCFrameContext *fc)
231 {
232 2611 const VVCSPS *sps = fc->ps.sps;
233 2611 const VVCPPS *pps = fc->ps.pps;
234
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2611 const int width = pps ? pps->width : 0;
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2611 const int height = pps ? pps->height : 0;
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2611 const int ctu_width = pps ? pps->ctb_width : 0;
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2611 const int ctu_height = pps ? pps->ctb_height : 0;
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2611 const int chroma_idc = sps ? sps->r->sps_chroma_format_idc : 0;
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2611 const int ps = sps ? sps->pixel_shift : 0;
240
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2611 const int c_end = chroma_idc ? VVC_MAX_SAMPLE_ARRAYS : 1;
241 7590 const int changed = fc->tab.sz.chroma_format_idc != chroma_idc ||
242
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2368 fc->tab.sz.width != width || fc->tab.sz.height != height ||
243
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7337 fc->tab.sz.ctu_width != ctu_width || fc->tab.sz.ctu_height != ctu_height ||
244
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2358 fc->tab.sz.pixel_shift != ps;
245
246 2611 tl_init(l, 0, changed);
247
248
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9258 for (int c_idx = 0; c_idx < c_end; c_idx++) {
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6647 const int w = width >> (sps ? sps->hshift[c_idx] : 0);
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6647 const int h = height >> (sps ? sps->vshift[c_idx] : 0);
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6647 TL_ADD(sao_pixel_buffer_h[c_idx], (w * 2 * ctu_height) << ps);
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6647 TL_ADD(sao_pixel_buffer_v[c_idx], (h * 2 * ctu_width) << ps);
253 }
254
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9258 for (int c_idx = 0; c_idx < c_end; c_idx++) {
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6647 const int w = width >> (sps ? sps->hshift[c_idx] : 0);
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6647 const int h = height >> (sps ? sps->vshift[c_idx] : 0);
258
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6647 const int border_pixels = c_idx ? ALF_BORDER_CHROMA : ALF_BORDER_LUMA;
259
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19941 for (int i = 0; i < 2; i++) {
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13294 TL_ADD(alf_pixel_buffer_h[c_idx][i], (w * border_pixels * ctu_height) << ps);
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13294 TL_ADD(alf_pixel_buffer_v[c_idx][i], h * ALF_PADDING_SIZE * ctu_width);
262 }
263 }
264 2611 }
265
266 2611 static void msm_tl_init(TabList *l, VVCFrameContext *fc)
267 {
268 2611 const VVCPPS *pps = fc->ps.pps;
269
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2611 const int w32 = pps ? AV_CEIL_RSHIFT(pps->width, 5) : 0;
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2611 const int h32 = pps ? AV_CEIL_RSHIFT(pps->height, 5) : 0;
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4969 const int changed = AV_CEIL_RSHIFT(fc->tab.sz.width, 5) != w32 ||
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2358 AV_CEIL_RSHIFT(fc->tab.sz.height, 5) != h32;
273
274 2611 tl_init(l, 1, changed);
275
276
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7833 for (int i = LUMA; i <= CHROMA; i++)
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5222 TL_ADD(msm[i], w32 * h32);
278 2611 }
279
280 2611 static void ispmf_tl_init(TabList *l, VVCFrameContext *fc)
281 {
282 2611 const VVCPPS *pps = fc->ps.pps;
283
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2611 const int w64 = pps ? AV_CEIL_RSHIFT(pps->width, 6) : 0;
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2611 const int h64 = pps ? AV_CEIL_RSHIFT(pps->height, 6) : 0;
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4969 const int changed = AV_CEIL_RSHIFT(fc->tab.sz.width, 6) != w64 ||
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2358 AV_CEIL_RSHIFT(fc->tab.sz.height, 6) != h64;
287
288 2611 tl_init(l, 1, changed);
289
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2611 TL_ADD(ispmf, w64 * h64);
291 2611 }
292
293 2611 static void ibc_tl_init(TabList *l, VVCFrameContext *fc)
294 {
295 2611 const VVCSPS *sps = fc->ps.sps;
296 2611 const VVCPPS *pps = fc->ps.pps;
297
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2611 const int ctu_height = pps ? pps->ctb_height : 0;
298
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2611 const int ctu_size = sps ? sps->ctb_size_y : 0;
299
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2611 const int ps = sps ? sps->pixel_shift : 0;
300
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2611 const int chroma_idc = sps ? sps->r->sps_chroma_format_idc : 0;
301
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2611 const int has_ibc = sps ? sps->r->sps_ibc_enabled_flag : 0;
302 7590 const int changed = fc->tab.sz.chroma_format_idc != chroma_idc ||
303
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2368 fc->tab.sz.ctu_height != ctu_height ||
304
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5430 fc->tab.sz.ctu_size != ctu_size ||
305
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451 fc->tab.sz.pixel_shift != ps;
306
307
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2611 fc->tab.sz.ibc_buffer_width = ctu_size ? 2 * MAX_CTU_SIZE * MAX_CTU_SIZE / ctu_size : 0;
308
309 2611 tl_init(l, has_ibc, changed);
310
311
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10444 for (int i = LUMA; i < VVC_MAX_SAMPLE_ARRAYS; i++) {
312
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7833 const int hs = sps ? sps->hshift[i] : 0;
313
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7833 const int vs = sps ? sps->vshift[i] : 0;
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7833 TL_ADD(ibc_vir_buf[i], fc->tab.sz.ibc_buffer_width * ctu_size * ctu_height << ps >> hs >> vs);
315 }
316 2611 }
317
318 typedef void (*tl_init_fn)(TabList *l, VVCFrameContext *fc);
319
320 2611 static int frame_context_for_each_tl(VVCFrameContext *fc, int (*unary_fn)(TabList *l))
321 {
322 2611 const tl_init_fn init[] = {
323 ctu_nz_tl_init,
324 min_cb_tl_init,
325 min_cb_nz_tl_init,
326 min_pu_tl_init,
327 min_pu_nz_tl_init,
328 min_tu_tl_init,
329 min_tu_nz_tl_init,
330 pixel_buffer_nz_tl_init,
331 msm_tl_init,
332 ispmf_tl_init,
333 ibc_tl_init,
334 };
335
336
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31332 for (int i = 0; i < FF_ARRAY_ELEMS(init); i++) {
337 TabList l;
338 int ret;
339
340 28721 init[i](&l, fc);
341 28721 ret = unary_fn(&l);
342
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28721 if (ret < 0)
343 return ret;
344 }
345 2611 return 0;
346 }
347
348 1665 static void free_cus(VVCFrameContext *fc)
349 {
350
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1665 if (fc->tab.cus) {
351
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47794 for (int i = 0; i < fc->tab.sz.ctu_count; i++)
352 46833 ff_vvc_ctu_free_cus(fc->tab.cus + i);
353 }
354 1665 }
355
356 704 static void pic_arrays_free(VVCFrameContext *fc)
357 {
358 704 free_cus(fc);
359 704 frame_context_for_each_tl(fc, tl_free);
360 704 av_refstruct_pool_uninit(&fc->rpl_tab_pool);
361 704 av_refstruct_pool_uninit(&fc->tab_dmvr_mvf_pool);
362
363 704 memset(&fc->tab.sz, 0, sizeof(fc->tab.sz));
364 704 }
365
366 961 static int pic_arrays_init(VVCContext *s, VVCFrameContext *fc)
367 {
368 961 const VVCSPS *sps = fc->ps.sps;
369 961 const VVCPPS *pps = fc->ps.pps;
370 961 const int ctu_count = pps->ctb_count;
371 961 const int pic_size_in_min_pu = pps->min_pu_width * pps->min_pu_height;
372 int ret;
373
374 961 free_cus(fc);
375
376 961 ret = frame_context_for_each_tl(fc, tl_create);
377
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961 if (ret < 0)
378 return ret;
379
380 // for error handling case, we may call free_cus before VVC_TASK_STAGE_INIT, so we need to set cus to 0 here
381 961 memset(fc->tab.cus, 0, sizeof(*fc->tab.cus) * ctu_count);
382
383 961 memset(fc->tab.slice_idx, -1, sizeof(*fc->tab.slice_idx) * ctu_count);
384
385
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961 if (fc->tab.sz.ctu_count != ctu_count) {
386 253 av_refstruct_pool_uninit(&fc->rpl_tab_pool);
387 253 fc->rpl_tab_pool = av_refstruct_pool_alloc(ctu_count * sizeof(RefPicListTab), 0);
388
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253 if (!fc->rpl_tab_pool)
389 return AVERROR(ENOMEM);
390 }
391
392
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961 if (fc->tab.sz.pic_size_in_min_pu != pic_size_in_min_pu) {
393 253 av_refstruct_pool_uninit(&fc->tab_dmvr_mvf_pool);
394 253 fc->tab_dmvr_mvf_pool = av_refstruct_pool_alloc(
395 pic_size_in_min_pu * sizeof(MvField), AV_REFSTRUCT_POOL_FLAG_ZERO_EVERY_TIME);
396
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253 if (!fc->tab_dmvr_mvf_pool)
397 return AVERROR(ENOMEM);
398 }
399
400 961 fc->tab.sz.ctu_count = pps->ctb_count;
401 961 fc->tab.sz.ctu_size = 1 << sps->ctb_log2_size_y << sps->ctb_log2_size_y;
402 961 fc->tab.sz.pic_size_in_min_cb = pps->min_cb_width * pps->min_cb_height;
403 961 fc->tab.sz.pic_size_in_min_pu = pic_size_in_min_pu;
404 961 fc->tab.sz.pic_size_in_min_tu = pps->min_tu_width * pps->min_tu_height;
405 961 fc->tab.sz.width = pps->width;
406 961 fc->tab.sz.height = pps->height;
407 961 fc->tab.sz.ctu_width = pps->ctb_width;
408 961 fc->tab.sz.ctu_height = pps->ctb_height;
409 961 fc->tab.sz.chroma_format_idc = sps->r->sps_chroma_format_idc;
410 961 fc->tab.sz.pixel_shift = sps->pixel_shift;
411
412 961 return 0;
413 }
414
415 946 int ff_vvc_per_frame_init(VVCFrameContext *fc)
416 {
417 946 return frame_context_for_each_tl(fc, tl_zero);
418 }
419
420 3189 static int min_positive(const int idx, const int diff, const int min_diff)
421 {
422
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3189 return diff > 0 && (idx < 0 || diff < min_diff);
423 }
424
425 3197 static int max_negtive(const int idx, const int diff, const int max_diff)
426 {
427
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3197 return diff < 0 && (idx < 0 || diff > max_diff);
428 }
429
430 typedef int (*smvd_find_fxn)(const int idx, const int diff, const int old_diff);
431
432 3372 static int8_t smvd_find(const VVCFrameContext *fc, const SliceContext *sc, int lx, smvd_find_fxn find)
433 {
434 3372 const H266RawSliceHeader *rsh = sc->sh.r;
435 3372 const RefPicList *rpl = sc->rpl + lx;
436 3372 const int poc = fc->ref->poc;
437 3372 int8_t idx = -1;
438 3372 int old_diff = -1;
439
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10295 for (int i = 0; i < rsh->num_ref_idx_active[lx]; i++) {
440
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6923 if (!rpl->refs[i].is_lt) {
441 6386 int diff = poc - rpl->refs[i].poc;
442
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6386 if (find(idx, diff, old_diff)) {
443 2809 idx = i;
444 2809 old_diff = diff;
445 }
446 }
447 }
448 3372 return idx;
449 }
450
451 1434 static void smvd_ref_idx(const VVCFrameContext *fc, SliceContext *sc)
452 {
453 1434 VVCSH *sh = &sc->sh;
454
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1434 if (IS_B(sh->r)) {
455 1400 sh->ref_idx_sym[0] = smvd_find(fc, sc, 0, min_positive);
456 1400 sh->ref_idx_sym[1] = smvd_find(fc, sc, 1, max_negtive);
457
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1400 if (sh->ref_idx_sym[0] == -1 || sh->ref_idx_sym[1] == -1) {
458 286 sh->ref_idx_sym[0] = smvd_find(fc, sc, 0, max_negtive);
459 286 sh->ref_idx_sym[1] = smvd_find(fc, sc, 1, min_positive);
460 }
461 }
462 1434 }
463
464 1470 static void eps_free(SliceContext *slice)
465 {
466 1470 av_freep(&slice->eps);
467 1470 slice->nb_eps = 0;
468 1470 }
469
470 704 static void slices_free(VVCFrameContext *fc)
471 {
472
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704 if (fc->slices) {
473
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1038 for (int i = 0; i < fc->nb_slices_allocated; i++) {
474 785 SliceContext *slice = fc->slices[i];
475
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785 if (slice) {
476 785 av_refstruct_unref(&slice->ref);
477 785 av_refstruct_unref(&slice->sh.r);
478 785 eps_free(slice);
479 785 av_free(slice);
480 }
481 }
482 253 av_freep(&fc->slices);
483 }
484 704 fc->nb_slices_allocated = 0;
485 704 fc->nb_slices = 0;
486 704 }
487
488 1726 static int slices_realloc(VVCFrameContext *fc)
489 {
490 void *p;
491 1726 const int size = (fc->nb_slices_allocated + 1) * 3 / 2;
492
493
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1726 if (fc->nb_slices < fc->nb_slices_allocated)
494 1363 return 0;
495
496 363 p = av_realloc_array(fc->slices, size, sizeof(*fc->slices));
497
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363 if (!p)
498 return AVERROR(ENOMEM);
499
500 363 fc->slices = p;
501
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1148 for (int i = fc->nb_slices_allocated; i < size; i++) {
502 785 fc->slices[i] = av_mallocz(sizeof(*fc->slices[0]));
503
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785 if (!fc->slices[i]) {
504 fc->nb_slices_allocated = i;
505 return AVERROR(ENOMEM);
506 }
507 785 fc->slices[i]->slice_idx = i;
508 }
509 363 fc->nb_slices_allocated = size;
510
511 363 return 0;
512 }
513
514 2084 static int get_ep_size(const H266RawSliceHeader *rsh, const GetByteContext *gb,
515 const H2645NAL *nal, const int header_size, const int ep_index)
516 {
517 int size;
518
519
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2084 if (ep_index < rsh->num_entry_points) {
520 373 int skipped = 0;
521 373 int64_t start = bytestream2_tell(gb);
522 373 int64_t end = start + rsh->sh_entry_point_offset_minus1[ep_index] + 1;
523
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373 while (skipped < nal->skipped_bytes && nal->skipped_bytes_pos[skipped] <= start + header_size) {
524 skipped++;
525 }
526
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373 while (skipped < nal->skipped_bytes && nal->skipped_bytes_pos[skipped] <= end + header_size) {
527 end--;
528 skipped++;
529 }
530 373 size = end - start;
531 373 size = av_clip(size, 0, bytestream2_get_bytes_left(gb));
532 } else {
533 1711 size = bytestream2_get_bytes_left(gb);
534 }
535 2084 return size;
536 }
537
538 2084 static int ep_init_cabac_decoder(EntryPoint *ep, GetByteContext *gb, const int size)
539 {
540 int ret;
541
542
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2084 av_assert0(size <= bytestream2_get_bytes_left(gb));
543 2084 ret = ff_init_cabac_decoder(&ep->cc, gb->buffer, size);
544
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2084 if (ret < 0)
545 return ret;
546 2084 bytestream2_skipu(gb, size);
547 2084 return 0;
548 }
549
550 2084 static int ep_init(EntryPoint *ep, const int ctu_addr, const int ctu_end,
551 GetByteContext *gb, const int size)
552 {
553 2084 const int ret = ep_init_cabac_decoder(ep, gb, size);
554
555
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2084 if (ret < 0)
556 return ret;
557
558 2084 ep->ctu_start = ctu_addr;
559 2084 ep->ctu_end = ctu_end;
560
561
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8336 for (int c_idx = LUMA; c_idx <= CR; c_idx++)
562 6252 ep->pp[c_idx].size = 0;
563
564 2084 return 0;
565 }
566
567 1711 static int slice_init_entry_points(SliceContext *sc,
568 VVCFrameContext *fc, const H2645NAL *nal, const CodedBitstreamUnit *unit)
569 {
570 1711 const VVCSH *sh = &sc->sh;
571 1711 const H266RawSlice *slice = unit->content_ref;
572 1711 int nb_eps = sh->r->num_entry_points + 1;
573 1711 int ctu_addr = 0;
574 GetByteContext gb;
575 int ret;
576
577
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1711 if (sc->nb_eps != nb_eps) {
578 685 eps_free(sc);
579 685 sc->eps = av_calloc(nb_eps, sizeof(*sc->eps));
580
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685 if (!sc->eps)
581 return AVERROR(ENOMEM);
582 685 sc->nb_eps = nb_eps;
583 }
584
585 1711 bytestream2_init(&gb, slice->data, slice->data_size);
586
587
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3795 for (int i = 0; i < sc->nb_eps; i++)
588 {
589 2084 const int size = get_ep_size(sc->sh.r, &gb, nal, slice->header_size, i);
590
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2084 const int ctu_end = (i + 1 == sc->nb_eps ? sh->num_ctus_in_curr_slice : sh->entry_point_start_ctu[i]);
591 2084 EntryPoint *ep = sc->eps + i;
592
593 2084 ret = ep_init(ep, ctu_addr, ctu_end, &gb, size);
594
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2084 if (ret < 0)
595 return ret;
596
597
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48797 for (int j = ep->ctu_start; j < ep->ctu_end; j++) {
598 46713 const int rs = sc->sh.ctb_addr_in_curr_slice[j];
599 46713 fc->tab.slice_idx[rs] = sc->slice_idx;
600 }
601
602
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2084 if (i + 1 < sc->nb_eps)
603 373 ctu_addr = sh->entry_point_start_ctu[i];
604 }
605
606 1711 return 0;
607 }
608
609 2980 static VVCFrameContext* get_frame_context(const VVCContext *s, const VVCFrameContext *fc, const int delta)
610 {
611 2980 const int size = s->nb_fcs;
612 2980 const int idx = (fc - s->fcs + delta + size) % size;
613 2980 return s->fcs + idx;
614 }
615
616 4441 static int ref_frame(VVCFrame *dst, const VVCFrame *src)
617 {
618 int ret;
619
620 4441 ret = av_frame_ref(dst->frame, src->frame);
621
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4441 if (ret < 0)
622 return ret;
623
624 4441 av_refstruct_replace(&dst->sps, src->sps);
625 4441 av_refstruct_replace(&dst->pps, src->pps);
626
627
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4441 if (src->needs_fg) {
628 ret = av_frame_ref(dst->frame_grain, src->frame_grain);
629 if (ret < 0)
630 return ret;
631
632 dst->needs_fg = src->needs_fg;
633 }
634
635 4441 av_refstruct_replace(&dst->progress, src->progress);
636
637 4441 av_refstruct_replace(&dst->tab_dmvr_mvf, src->tab_dmvr_mvf);
638
639 4441 av_refstruct_replace(&dst->rpl_tab, src->rpl_tab);
640 4441 av_refstruct_replace(&dst->rpl, src->rpl);
641 4441 av_refstruct_replace(&dst->hwaccel_picture_private,
642 4441 src->hwaccel_picture_private);
643 4441 dst->nb_rpl_elems = src->nb_rpl_elems;
644
645 4441 dst->poc = src->poc;
646 4441 dst->ctb_count = src->ctb_count;
647
648 4441 dst->scaling_win = src->scaling_win;
649 4441 dst->ref_width = src->ref_width;
650 4441 dst->ref_height = src->ref_height;
651
652 4441 dst->flags = src->flags;
653 4441 dst->sequence = src->sequence;
654
655 4441 return 0;
656 }
657
658 704 static av_cold void frame_context_free(VVCFrameContext *fc)
659 {
660 704 slices_free(fc);
661
662 704 av_refstruct_pool_uninit(&fc->tu_pool);
663 704 av_refstruct_pool_uninit(&fc->cu_pool);
664
665
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12672 for (int i = 0; i < FF_ARRAY_ELEMS(fc->DPB); i++) {
666 11968 ff_vvc_unref_frame(fc, &fc->DPB[i], ~0);
667 11968 av_frame_free(&fc->DPB[i].frame);
668 11968 av_frame_free(&fc->DPB[i].frame_grain);
669 }
670
671 704 ff_vvc_frame_thread_free(fc);
672 704 pic_arrays_free(fc);
673 704 av_frame_free(&fc->output_frame);
674 704 ff_vvc_frame_ps_free(&fc->ps);
675 704 ff_vvc_sei_reset(&fc->sei);
676 704 }
677
678 704 static av_cold int frame_context_init(VVCFrameContext *fc, AVCodecContext *avctx)
679 {
680
681 704 fc->log_ctx = avctx;
682
683 704 fc->output_frame = av_frame_alloc();
684
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704 if (!fc->output_frame)
685 return AVERROR(ENOMEM);
686
687
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12672 for (int j = 0; j < FF_ARRAY_ELEMS(fc->DPB); j++) {
688 11968 fc->DPB[j].frame = av_frame_alloc();
689
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11968 if (!fc->DPB[j].frame)
690 return AVERROR(ENOMEM);
691
692 11968 fc->DPB[j].frame_grain = av_frame_alloc();
693
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11968 if (!fc->DPB[j].frame_grain)
694 return AVERROR(ENOMEM);
695 }
696 704 fc->cu_pool = av_refstruct_pool_alloc(sizeof(CodingUnit), 0);
697
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704 if (!fc->cu_pool)
698 return AVERROR(ENOMEM);
699
700 704 fc->tu_pool = av_refstruct_pool_alloc(sizeof(TransformUnit), 0);
701
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704 if (!fc->tu_pool)
702 return AVERROR(ENOMEM);
703
704 704 return 0;
705 }
706
707 961 static int frame_context_setup(VVCFrameContext *fc, VVCContext *s)
708 {
709 int ret;
710
711 // copy refs from the last frame
712
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961 if (s->nb_frames && s->nb_fcs > 1) {
713 873 VVCFrameContext *prev = get_frame_context(s, fc, -1);
714
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15714 for (int i = 0; i < FF_ARRAY_ELEMS(fc->DPB); i++) {
715 14841 ff_vvc_unref_frame(fc, &fc->DPB[i], ~0);
716
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14841 if (prev->DPB[i].frame->buf[0]) {
717 4441 ret = ref_frame(&fc->DPB[i], &prev->DPB[i]);
718
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4441 if (ret < 0)
719 return ret;
720 }
721 }
722
723 873 ret = ff_vvc_sei_replace(&fc->sei, &prev->sei);
724
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873 if (ret < 0)
725 return ret;
726 }
727
728
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961 if (IS_IDR(s)) {
729 97 s->seq_decode = (s->seq_decode + 1) & 0xff;
730 97 ff_vvc_clear_refs(fc);
731 }
732
733 961 ret = pic_arrays_init(s, fc);
734
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961 if (ret < 0)
735 return ret;
736 961 ff_vvc_dsp_init(&fc->vvcdsp, fc->ps.sps->bit_depth);
737 961 ff_videodsp_init(&fc->vdsp, fc->ps.sps->bit_depth);
738 961 return 0;
739 }
740
741 /* SEI does not affect decoding, so we ignore the return value */
742 961 static void decode_prefix_sei(VVCFrameContext *fc, VVCContext *s)
743 {
744 961 CodedBitstreamFragment *frame = &s->current_frame;
745
746
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4606 for (int i = 0; i < frame->nb_units; i++) {
747 3645 const CodedBitstreamUnit *unit = frame->units + i;
748
749
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3645 if (unit->type == VVC_PREFIX_SEI_NUT) {
750 68 int ret = ff_vvc_sei_decode(&fc->sei, unit->content_ref, fc);
751
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68 if (ret < 0)
752 return;
753 }
754 }
755 }
756
757 961 static int set_side_data(VVCContext *s, VVCFrameContext *fc)
758 {
759 961 AVFrame *out = fc->ref->frame;
760
761 1922 return ff_h2645_sei_to_frame(out, &fc->sei.common, AV_CODEC_ID_VVC, s->avctx,
762 961 NULL, fc->ps.sps->bit_depth, fc->ps.sps->bit_depth, fc->ref->poc);
763 }
764
765 961 static int check_film_grain(VVCContext *s, VVCFrameContext *fc)
766 {
767 int ret;
768
769 1922 fc->ref->needs_fg = (fc->sei.common.film_grain_characteristics &&
770 fc->sei.common.film_grain_characteristics->present ||
771
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961 fc->sei.common.aom_film_grain.enable) &&
772
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1922 !(s->avctx->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN) &&
773 !s->avctx->hwaccel;
774
775
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961 if (fc->ref->needs_fg &&
776 (fc->sei.common.film_grain_characteristics &&
777 fc->sei.common.film_grain_characteristics->present &&
778 !ff_h274_film_grain_params_supported(fc->sei.common.film_grain_characteristics->model_id,
779 fc->ref->frame->format) ||
780 !av_film_grain_params_select(fc->ref->frame))) {
781 av_log_once(s->avctx, AV_LOG_WARNING, AV_LOG_DEBUG, &s->film_grain_warning_shown,
782 "Unsupported film grain parameters. Ignoring film grain.\n");
783 fc->ref->needs_fg = 0;
784 }
785
786
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961 if (fc->ref->needs_fg) {
787 fc->ref->frame_grain->format = fc->ref->frame->format;
788 fc->ref->frame_grain->width = fc->ref->frame->width;
789 fc->ref->frame_grain->height = fc->ref->frame->height;
790
791 ret = ff_thread_get_buffer(s->avctx, fc->ref->frame_grain, 0);
792 if (ret < 0)
793 return ret;
794
795 return av_frame_copy_props(fc->ref->frame_grain, fc->ref->frame);
796 }
797
798 961 return 0;
799 }
800
801 961 static int frame_start(VVCContext *s, VVCFrameContext *fc, SliceContext *sc)
802 {
803 961 const VVCPH *ph = &fc->ps.ph;
804 961 const H266RawSliceHeader *rsh = sc->sh.r;
805 int ret;
806
807 // 8.3.1 Decoding process for picture order count
808
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961 if (!s->temporal_id && !ph->r->ph_non_ref_pic_flag && !(IS_RASL(s) || IS_RADL(s)))
809 209 s->poc_tid0 = ph->poc;
810
811
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961 if ((ret = ff_vvc_set_new_ref(s, fc, &fc->frame)) < 0)
812 goto fail;
813
814 961 decode_prefix_sei(fc, s);
815
816 961 ret = set_side_data(s, fc);
817
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961 if (ret < 0)
818 goto fail;
819
820 961 ret = check_film_grain(s, fc);
821
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961 if (ret < 0)
822 goto fail;
823
824
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961 if (!IS_IDR(s))
825 864 ff_vvc_bump_frame(s, fc);
826
827 961 av_frame_unref(fc->output_frame);
828
829
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961 if ((ret = ff_vvc_output_frame(s, fc, fc->output_frame,rsh->sh_no_output_of_prior_pics_flag, 0)) < 0)
830 goto fail;
831
832
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961 if ((ret = ff_vvc_frame_rpl(s, fc, sc)) < 0)
833 15 goto fail;
834
835
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946 if ((ret = ff_vvc_frame_thread_init(fc)) < 0)
836 goto fail;
837 946 return 0;
838 15 fail:
839
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15 if (fc->ref)
840 15 ff_vvc_unref_frame(fc, fc->ref, ~0);
841 15 fc->ref = NULL;
842 15 return ret;
843 }
844
845 1726 static int slice_start(SliceContext *sc, VVCContext *s, VVCFrameContext *fc,
846 const CodedBitstreamUnit *unit, const int is_first_slice)
847 {
848 1726 VVCSH *sh = &sc->sh;
849 int ret;
850
851 1726 ret = ff_vvc_decode_sh(sh, &fc->ps, unit);
852
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1726 if (ret < 0)
853 return ret;
854
855 1726 av_refstruct_replace(&sc->ref, unit->content_ref);
856
857
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1726 if (is_first_slice) {
858 961 ret = frame_start(s, fc, sc);
859
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961 if (ret < 0)
860 15 return ret;
861
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765 } else if (fc->ref) {
862
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765 if (!IS_I(sh->r)) {
863 599 ret = ff_vvc_slice_rpl(s, fc, sc);
864
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599 if (ret < 0) {
865 av_log(fc->log_ctx, AV_LOG_WARNING,
866 "Error constructing the reference lists for the current slice.\n");
867 return ret;
868 }
869 }
870 } else {
871 av_log(fc->log_ctx, AV_LOG_ERROR, "First slice in a frame missing.\n");
872 return ret;
873 }
874
875
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1711 if (!IS_I(sh->r))
876 1434 smvd_ref_idx(fc, sc);
877
878 1711 return 0;
879 }
880
881 89 static enum AVPixelFormat get_format(AVCodecContext *avctx, const VVCSPS *sps)
882 {
883 #define HWACCEL_MAX CONFIG_VVC_VAAPI_HWACCEL
884
885 89 enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmt = pix_fmts;
886
887
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89 switch (sps->pix_fmt) {
888 5 case AV_PIX_FMT_YUV420P:
889 #if CONFIG_VVC_VAAPI_HWACCEL
890 5 *fmt++ = AV_PIX_FMT_VAAPI;
891 #endif
892 5 break;
893 78 case AV_PIX_FMT_YUV420P10:
894 #if CONFIG_VVC_VAAPI_HWACCEL
895 78 *fmt++ = AV_PIX_FMT_VAAPI;
896 #endif
897 78 break;
898 }
899
900 89 *fmt++ = sps->pix_fmt;
901 89 *fmt = AV_PIX_FMT_NONE;
902
903 89 return ff_get_format(avctx, pix_fmts);
904 }
905
906 961 static int export_frame_params(VVCContext *s, const VVCFrameContext *fc)
907 {
908 961 AVCodecContext *c = s->avctx;
909 961 const VVCSPS *sps = fc->ps.sps;
910 961 const VVCPPS *pps = fc->ps.pps;
911
912 // Reset the format if pix_fmt/w/h change.
913
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961 if (c->sw_pix_fmt != sps->pix_fmt || c->coded_width != pps->width || c->coded_height != pps->height) {
914 89 c->coded_width = pps->width;
915 89 c->coded_height = pps->height;
916 89 c->sw_pix_fmt = sps->pix_fmt;
917 89 c->pix_fmt = get_format(c, sps);
918
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89 if (c->pix_fmt < 0)
919 return AVERROR_INVALIDDATA;
920 }
921
922 961 c->width = pps->width - ((pps->r->pps_conf_win_left_offset + pps->r->pps_conf_win_right_offset) << sps->hshift[CHROMA]);
923 961 c->height = pps->height - ((pps->r->pps_conf_win_top_offset + pps->r->pps_conf_win_bottom_offset) << sps->vshift[CHROMA]);
924
925 961 return 0;
926 }
927
928 961 static int frame_setup(VVCFrameContext *fc, VVCContext *s)
929 {
930 961 int ret = ff_vvc_decode_frame_ps(&fc->ps, s);
931
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961 if (ret < 0)
932 return ret;
933
934 961 ret = frame_context_setup(fc, s);
935
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961 if (ret < 0)
936 return ret;
937
938 961 ret = export_frame_params(s, fc);
939
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961 if (ret < 0)
940 return ret;
941
942 961 return 0;
943 }
944
945 1726 static int decode_slice(VVCContext *s, VVCFrameContext *fc, AVBufferRef *buf_ref,
946 const H2645NAL *nal, const CodedBitstreamUnit *unit)
947 {
948 int ret;
949 SliceContext *sc;
950 1726 const int is_first_slice = !fc->nb_slices;
951
952 1726 ret = slices_realloc(fc);
953
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1726 if (ret < 0)
954 return ret;
955
956 1726 sc = fc->slices[fc->nb_slices];
957
958 1726 s->vcl_unit_type = nal->type;
959
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1726 if (is_first_slice) {
960 961 ret = frame_setup(fc, s);
961
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961 if (ret < 0)
962 return ret;
963 }
964
965 1726 ret = slice_start(sc, s, fc, unit, is_first_slice);
966
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1726 if (ret < 0)
967 15 return ret;
968
969 1711 ret = slice_init_entry_points(sc, fc, nal, unit);
970
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1711 if (ret < 0)
971 return ret;
972
973
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1711 if (s->avctx->hwaccel) {
974 if (is_first_slice) {
975 ret = FF_HW_CALL(s->avctx, start_frame, buf_ref, NULL, 0);
976 if (ret < 0)
977 return ret;
978 }
979
980 ret = FF_HW_CALL(s->avctx, decode_slice,
981 nal->raw_data, nal->raw_size);
982 if (ret < 0)
983 return ret;
984 }
985
986 1711 fc->nb_slices++;
987
988 1711 return 0;
989 }
990
991 3630 static int decode_nal_unit(VVCContext *s, VVCFrameContext *fc, AVBufferRef *buf_ref,
992 const H2645NAL *nal, const CodedBitstreamUnit *unit)
993 {
994 int ret;
995
996 3630 s->temporal_id = nal->temporal_id;
997
998
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3630 if (nal->nuh_layer_id > 0) {
999 avpriv_report_missing_feature(fc->log_ctx,
1000 "Decoding of multilayer bitstreams");
1001 return AVERROR_PATCHWELCOME;
1002 }
1003
1004
6/6
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3630 switch (unit->type) {
1005 442 case VVC_VPS_NUT:
1006 case VVC_SPS_NUT:
1007 case VVC_PPS_NUT:
1008 /* vps, sps, sps cached by s->cbc */
1009 442 break;
1010 1726 case VVC_TRAIL_NUT:
1011 case VVC_STSA_NUT:
1012 case VVC_RADL_NUT:
1013 case VVC_RASL_NUT:
1014 case VVC_IDR_W_RADL:
1015 case VVC_IDR_N_LP:
1016 case VVC_CRA_NUT:
1017 case VVC_GDR_NUT:
1018 1726 ret = decode_slice(s, fc, buf_ref, nal, unit);
1019
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1726 if (ret < 0)
1020 15 return ret;
1021 1711 break;
1022 401 case VVC_PREFIX_APS_NUT:
1023 case VVC_SUFFIX_APS_NUT:
1024 401 ret = ff_vvc_decode_aps(&s->ps, unit);
1025
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401 if (ret < 0)
1026 return ret;
1027 401 break;
1028 68 case VVC_PREFIX_SEI_NUT:
1029 /* handle by decode_prefix_sei() */
1030 68 break;
1031
1032 888 case VVC_SUFFIX_SEI_NUT:
1033 /* SEI does not affect decoding, so we ignore the return value*/
1034
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888 if (fc)
1035 888 ff_vvc_sei_decode(&fc->sei, unit->content_ref, fc);
1036 888 break;
1037 }
1038
1039 3615 return 0;
1040 }
1041
1042 961 static int decode_nal_units(VVCContext *s, VVCFrameContext *fc, AVPacket *avpkt)
1043 {
1044 961 const CodedBitstreamH266Context *h266 = s->cbc->priv_data;
1045 961 CodedBitstreamFragment *frame = &s->current_frame;
1046 961 int ret = 0;
1047 961 s->last_eos = s->eos;
1048 961 s->eos = 0;
1049 961 fc->ref = NULL;
1050
1051 961 ff_cbs_fragment_reset(frame);
1052 961 ret = ff_cbs_read_packet(s->cbc, frame, avpkt);
1053
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961 if (ret < 0) {
1054 av_log(s->avctx, AV_LOG_ERROR, "Failed to read packet.\n");
1055 return ret;
1056 }
1057 /* decode the NAL units */
1058
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4576 for (int i = 0; i < frame->nb_units; i++) {
1059 3630 const H2645NAL *nal = h266->common.read_packet.nals + i;
1060 3630 const CodedBitstreamUnit *unit = frame->units + i;
1061
1062
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3630 if (unit->type == VVC_EOB_NUT || unit->type == VVC_EOS_NUT) {
1063 s->last_eos = 1;
1064 } else {
1065 3630 ret = decode_nal_unit(s, fc, avpkt->buf, nal, unit);
1066
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3630 if (ret < 0) {
1067 15 av_log(s->avctx, AV_LOG_WARNING,
1068 "Error parsing NAL unit #%d.\n", i);
1069 15 goto fail;
1070 }
1071 }
1072 }
1073 946 return 0;
1074
1075 15 fail:
1076
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15 if (fc->ref)
1077 ff_vvc_report_frame_finished(fc->ref);
1078 15 return ret;
1079 }
1080
1081 946 static int frame_end(VVCContext *s, VVCFrameContext *fc)
1082 {
1083 const AVFilmGrainParams *fgp;
1084 int ret;
1085
1086
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946 if (fc->ref->needs_fg) {
1087 av_assert0(fc->ref->frame_grain->buf[0]);
1088 fgp = av_film_grain_params_select(fc->ref->frame);
1089 switch (fgp->type) {
1090 case AV_FILM_GRAIN_PARAMS_NONE:
1091 av_assert0(0);
1092 return AVERROR_BUG;
1093 case AV_FILM_GRAIN_PARAMS_H274:
1094 ret = ff_h274_apply_film_grain(fc->ref->frame_grain, fc->ref->frame,
1095 &s->h274db, fgp);
1096 if (ret < 0)
1097 return ret;
1098 break;
1099 case AV_FILM_GRAIN_PARAMS_AV1:
1100 ret = ff_aom_apply_film_grain(fc->ref->frame_grain, fc->ref->frame, fgp);
1101 if (ret < 0)
1102 return ret;
1103 break;
1104 }
1105 }
1106
1107
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946 if (!s->avctx->hwaccel && s->avctx->err_recognition & AV_EF_CRCCHECK) {
1108 VVCSEI *sei = &fc->sei;
1109 if (sei->picture_hash.present) {
1110 ret = ff_h274_hash_init(&s->hash_ctx, sei->picture_hash.hash_type);
1111 if (ret < 0)
1112 return ret;
1113
1114 ret = ff_h274_hash_verify(s->hash_ctx, &sei->picture_hash, fc->ref->frame, fc->ps.pps->width, fc->ps.pps->height);
1115 if (ret < 0) {
1116 av_log(s->avctx, AV_LOG_ERROR,
1117 "Verifying checksum for frame with decoder_order %d: failed\n",
1118 (int)fc->decode_order);
1119 if (s->avctx->err_recognition & AV_EF_EXPLODE)
1120 return ret;
1121 }
1122 }
1123 }
1124
1125 946 return 0;
1126 }
1127
1128 946 static int wait_delayed_frame(VVCContext *s, AVFrame *output, int *got_output)
1129 {
1130 946 VVCFrameContext *delayed = get_frame_context(s, s->fcs, s->nb_frames - s->nb_delayed);
1131 946 int ret = ff_vvc_frame_wait(s, delayed);
1132
1133
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946 if (!ret) {
1134 946 ret = frame_end(s, delayed);
1135
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946 if (ret >= 0 && delayed->output_frame->buf[0] && output) {
1136 804 av_frame_move_ref(output, delayed->output_frame);
1137 804 *got_output = 1;
1138 }
1139 }
1140 946 s->nb_delayed--;
1141
1142 946 return ret;
1143 }
1144
1145 946 static int submit_frame(VVCContext *s, VVCFrameContext *fc, AVFrame *output, int *got_output)
1146 {
1147 int ret;
1148
1149
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946 if (s->avctx->hwaccel) {
1150 if (ret = FF_HW_SIMPLE_CALL(s->avctx, end_frame) < 0) {
1151 av_log(s->avctx, AV_LOG_ERROR,
1152 "Hardware accelerator failed to decode picture\n");
1153 ff_vvc_unref_frame(fc, fc->ref, ~0);
1154 return ret;
1155 }
1156 } else {
1157
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946 if (ret = ff_vvc_frame_submit(s, fc) < 0) {
1158 ff_vvc_report_frame_finished(fc->ref);
1159 return ret;
1160 }
1161 }
1162
1163 946 s->nb_frames++;
1164 946 s->nb_delayed++;
1165
1166
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946 if (s->nb_delayed >= s->nb_fcs || s->avctx->hwaccel) {
1167
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715 if ((ret = wait_delayed_frame(s, output, got_output)) < 0)
1168 return ret;
1169 }
1170 946 return 0;
1171 }
1172
1173 272 static int get_decoded_frame(VVCContext *s, AVFrame *output, int *got_output)
1174 {
1175 int ret;
1176
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284 while (s->nb_delayed) {
1177
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172 if ((ret = wait_delayed_frame(s, output, got_output)) < 0)
1178 return ret;
1179
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172 if (*got_output)
1180 160 return 0;
1181 }
1182
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112 if (s->nb_frames) {
1183 //we still have frames cached in dpb.
1184 112 VVCFrameContext *last = get_frame_context(s, s->fcs, s->nb_frames - 1);
1185
1186 112 ret = ff_vvc_output_frame(s, last, output, 0, 1);
1187
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112 if (ret < 0)
1188 return ret;
1189 112 *got_output = ret;
1190 }
1191 112 return 0;
1192 }
1193
1194 1233 static int vvc_decode_frame(AVCodecContext *avctx, AVFrame *output,
1195 int *got_output, AVPacket *avpkt)
1196 {
1197 1233 VVCContext *s = avctx->priv_data;
1198 VVCFrameContext *fc;
1199 int ret;
1200
1201
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1233 if (!avpkt->size)
1202 272 return get_decoded_frame(s, output, got_output);
1203
1204 961 fc = get_frame_context(s, s->fcs, s->nb_frames);
1205
1206 961 fc->nb_slices = 0;
1207 961 fc->decode_order = s->nb_frames;
1208
1209 961 ret = decode_nal_units(s, fc, avpkt);
1210
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961 if (ret < 0)
1211 15 return ret;
1212
1213
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946 if (!fc->ft || !fc->ref)
1214 return avpkt->size;
1215
1216 946 ret = submit_frame(s, fc, output, got_output);
1217
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946 if (ret < 0)
1218 return ret;
1219
1220 946 return avpkt->size;
1221 }
1222
1223 88 static av_cold void vvc_decode_flush(AVCodecContext *avctx)
1224 {
1225 88 VVCContext *s = avctx->priv_data;
1226 88 int got_output = 0;
1227
1228
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147 while (s->nb_delayed)
1229 59 wait_delayed_frame(s, NULL, &got_output);
1230
1231
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88 if (s->fcs) {
1232 88 VVCFrameContext *last = get_frame_context(s, s->fcs, s->nb_frames - 1);
1233 88 ff_vvc_flush_dpb(last);
1234 }
1235
1236 88 s->ps.sps_id_used = 0;
1237
1238 88 s->eos = 1;
1239 88 }
1240
1241 88 static av_cold int vvc_decode_free(AVCodecContext *avctx)
1242 {
1243 88 VVCContext *s = avctx->priv_data;
1244
1245 88 ff_cbs_fragment_free(&s->current_frame);
1246 88 vvc_decode_flush(avctx);
1247 88 ff_vvc_executor_free(&s->executor);
1248
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88 if (s->fcs) {
1249
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792 for (int i = 0; i < s->nb_fcs; i++)
1250 704 frame_context_free(s->fcs + i);
1251 88 av_free(s->fcs);
1252 }
1253 88 ff_h274_hash_freep(&s->hash_ctx);
1254 88 ff_vvc_ps_uninit(&s->ps);
1255 88 ff_cbs_close(&s->cbc);
1256
1257 88 return 0;
1258 }
1259
1260 59 static av_cold void init_default_scale_m(void)
1261 {
1262 59 memset(&ff_vvc_default_scale_m, 16, sizeof(ff_vvc_default_scale_m));
1263 59 }
1264
1265 #define VVC_MAX_DELAYED_FRAMES 16
1266 88 static av_cold int vvc_decode_init(AVCodecContext *avctx)
1267 {
1268 88 VVCContext *s = avctx->priv_data;
1269 static AVOnce init_static_once = AV_ONCE_INIT;
1270 88 const int cpu_count = av_cpu_count();
1271 88 const int delayed = FFMIN(cpu_count, VVC_MAX_DELAYED_FRAMES);
1272
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88 int thread_count = avctx->thread_count ? avctx->thread_count : delayed;
1273 int ret;
1274
1275 88 s->avctx = avctx;
1276
1277 88 ret = ff_cbs_init(&s->cbc, AV_CODEC_ID_VVC, avctx);
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88 if (ret)
1279 return ret;
1280
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88 if (avctx->extradata_size > 0 && avctx->extradata) {
1282 31 ret = ff_cbs_read_extradata_from_codec(s->cbc, &s->current_frame, avctx);
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31 if (ret < 0)
1284 return ret;
1285 }
1286
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88 s->nb_fcs = (avctx->flags & AV_CODEC_FLAG_LOW_DELAY) ? 1 : delayed;
1288 88 s->fcs = av_calloc(s->nb_fcs, sizeof(*s->fcs));
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88 if (!s->fcs)
1290 return AVERROR(ENOMEM);
1291
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792 for (int i = 0; i < s->nb_fcs; i++) {
1293 704 VVCFrameContext *fc = s->fcs + i;
1294 704 ret = frame_context_init(fc, avctx);
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704 if (ret < 0)
1296 return ret;
1297 }
1298
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88 if (thread_count == 1)
1300 88 thread_count = 0;
1301 88 s->executor = ff_vvc_executor_alloc(s, thread_count);
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88 if (!s->executor)
1303 return AVERROR(ENOMEM);
1304
1305 88 s->eos = 1;
1306 88 GDR_SET_RECOVERED(s);
1307 88 ff_thread_once(&init_static_once, init_default_scale_m);
1308
1309 88 return 0;
1310 }
1311
1312 const FFCodec ff_vvc_decoder = {
1313 .p.name = "vvc",
1314 .p.long_name = NULL_IF_CONFIG_SMALL("VVC (Versatile Video Coding)"),
1315 .p.type = AVMEDIA_TYPE_VIDEO,
1316 .p.id = AV_CODEC_ID_VVC,
1317 .priv_data_size = sizeof(VVCContext),
1318 .init = vvc_decode_init,
1319 .close = vvc_decode_free,
1320 FF_CODEC_DECODE_CB(vvc_decode_frame),
1321 .flush = vvc_decode_flush,
1322 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY | AV_CODEC_CAP_OTHER_THREADS,
1323 .caps_internal = FF_CODEC_CAP_EXPORTS_CROPPING | FF_CODEC_CAP_INIT_CLEANUP |
1324 FF_CODEC_CAP_AUTO_THREADS,
1325 .p.profiles = NULL_IF_CONFIG_SMALL(ff_vvc_profiles),
1326 .hw_configs = (const AVCodecHWConfigInternal *const []) {
1327 #if CONFIG_VVC_VAAPI_HWACCEL
1328 HWACCEL_VAAPI(vvc),
1329 #endif
1330 NULL
1331 },
1332 };
1333