FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/vvc/dec.c
Date: 2025-10-26 07:25:09
Exec Total Coverage
Lines: 634 766 82.8%
Functions: 56 56 100.0%
Branches: 379 565 67.1%
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 31724 static void tl_init(TabList *l, const int zero, const int realloc)
68 {
69 31724 l->nb_tabs = 0;
70 31724 l->zero = zero;
71 31724 l->realloc = realloc;
72 31724 }
73
74 12198 static int tl_free(TabList *l)
75 {
76
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 86556 for (int i = 0; i < l->nb_tabs; i++)
77 74358 av_freep(l->tabs[i].tab);
78
79 12198 return 0;
80 }
81
82 11726 static int tl_create(TabList *l)
83 {
84
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 11726 if (l->realloc) {
85 3926 tl_free(l);
86
87
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 27596 for (int i = 0; i < l->nb_tabs; i++) {
88 23670 Tab *t = l->tabs + i;
89
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 23670 *t->tab = l->zero ? av_mallocz(t->size) : av_malloc(t->size);
90
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 23670 if (!*t->tab)
91 ✗ return AVERROR(ENOMEM);
92 }
93 }
94 11726 return 0;
95 }
96
97 11726 static int tl_zero(TabList *l)
98 {
99
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 11726 if (l->zero) {
100
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 23944 for (int i = 0; i < l->nb_tabs; i++) {
101 18491 Tab *t = l->tabs + i;
102 18491 memset(*t->tab, 0, t->size);
103 }
104 }
105 11726 return 0;
106 }
107
108 2884 static void ctu_nz_tl_init(TabList *l, VVCFrameContext *fc)
109 {
110 2884 const VVCSPS *sps = fc->ps.sps;
111 2884 const VVCPPS *pps = fc->ps.pps;
112
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 2884 const int ctu_size = sps ? (1 << sps->ctb_log2_size_y << sps->ctb_log2_size_y) : 0;
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 2884 const int ctu_count = pps ? pps->ctb_count : 0;
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 2884 const int changed = fc->tab.sz.ctu_count != ctu_count || fc->tab.sz.ctu_size != ctu_size;
115
116 2884 tl_init(l, 0, changed);
117
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 2884 TL_ADD(cus, ctu_count);
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 2884 TL_ADD(ctus, ctu_count);
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 2884 TL_ADD(deblock, ctu_count);
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 2884 TL_ADD(sao, ctu_count);
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 2884 TL_ADD(alf, ctu_count);
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 2884 TL_ADD(slice_idx, ctu_count);
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 2884 TL_ADD(coeffs, ctu_count * ctu_size * VVC_MAX_SAMPLE_ARRAYS);
125 2884 }
126
127 2884 static void min_cb_tl_init(TabList *l, VVCFrameContext *fc)
128 {
129 2884 const VVCPPS *pps = fc->ps.pps;
130
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 2884 const int pic_size_in_min_cb = pps ? pps->min_cb_width * pps->min_cb_height : 0;
131 2884 const int changed = fc->tab.sz.pic_size_in_min_cb != pic_size_in_min_cb;
132
133 2884 tl_init(l, 1, changed);
134
135
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 2884 TL_ADD(imf, pic_size_in_min_cb);
136
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 8652 for (int i = LUMA; i <= CHROMA; i++)
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 5768 TL_ADD(cb_width[i], pic_size_in_min_cb); //is_a0_available requires this
139 2884 }
140
141 2884 static void min_cb_nz_tl_init(TabList *l, VVCFrameContext *fc)
142 {
143 2884 const VVCPPS *pps = fc->ps.pps;
144
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 2884 const int pic_size_in_min_cb = pps ? pps->min_cb_width * pps->min_cb_height : 0;
145 2884 const int changed = fc->tab.sz.pic_size_in_min_cb != pic_size_in_min_cb;
146
147 2884 tl_init(l, 0, changed);
148
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 2884 TL_ADD(skip, pic_size_in_min_cb);
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 2884 TL_ADD(ipm, pic_size_in_min_cb);
151
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 8652 for (int i = LUMA; i <= CHROMA; i++) {
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 5768 TL_ADD(cqt_depth[i], pic_size_in_min_cb);
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 5768 TL_ADD(cb_pos_x[i], pic_size_in_min_cb);
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 5768 TL_ADD(cb_pos_y[i], pic_size_in_min_cb);
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 5768 TL_ADD(cb_height[i], pic_size_in_min_cb);
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 5768 TL_ADD(cp_mv[i], pic_size_in_min_cb * MAX_CONTROL_POINTS);
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 5768 TL_ADD(cpm[i], pic_size_in_min_cb);
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 5768 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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 2884 TL_ADD(qp[LUMA], pic_size_in_min_cb);
163 2884 }
164
165 2884 static void min_pu_tl_init(TabList *l, VVCFrameContext *fc)
166 {
167 2884 const VVCPPS *pps = fc->ps.pps;
168
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 2884 const int pic_size_in_min_pu = pps ? pps->min_pu_width * pps->min_pu_height : 0;
169 2884 const int changed = fc->tab.sz.pic_size_in_min_pu != pic_size_in_min_pu;
170
171 2884 tl_init(l, 1, changed);
172
173
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 2884 TL_ADD(iaf, pic_size_in_min_pu);
174 2884 }
175
176 2884 static void min_pu_nz_tl_init(TabList *l, VVCFrameContext *fc)
177 {
178 2884 const VVCPPS *pps = fc->ps.pps;
179
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 2884 const int pic_size_in_min_pu = pps ? pps->min_pu_width * pps->min_pu_height : 0;
180 2884 const int changed = fc->tab.sz.pic_size_in_min_pu != pic_size_in_min_pu;
181
182 2884 tl_init(l, 0, changed);
183
184
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 2884 TL_ADD(msf, pic_size_in_min_pu);
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 2884 TL_ADD(mmi, pic_size_in_min_pu);
186
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 2884 TL_ADD(mvf, pic_size_in_min_pu);
187 2884 }
188
189 2884 static void min_tu_tl_init(TabList *l, VVCFrameContext *fc)
190 {
191 2884 const VVCPPS *pps = fc->ps.pps;
192
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 2884 const int pic_size_in_min_tu = pps ? pps->min_tu_width * pps->min_tu_height : 0;
193 2884 const int changed = fc->tab.sz.pic_size_in_min_tu != pic_size_in_min_tu;
194
195 2884 tl_init(l, 1, changed);
196
197
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 2884 TL_ADD(tu_joint_cbcr_residual_flag, pic_size_in_min_tu);
198
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 11536 for (int i = 0; i < VVC_MAX_SAMPLE_ARRAYS; i++) {
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 8652 TL_ADD(tu_coded_flag[i], pic_size_in_min_tu);
201
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 25956 for (int vertical = 0; vertical < 2; vertical++)
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 17304 TL_ADD(bs[vertical][i], pic_size_in_min_tu);
204 }
205 2884 }
206
207 2884 static void min_tu_nz_tl_init(TabList *l, VVCFrameContext *fc)
208 {
209 2884 const VVCPPS *pps = fc->ps.pps;
210
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 2884 const int pic_size_in_min_tu = pps ? pps->min_tu_width * pps->min_tu_height : 0;
211 2884 const int changed = fc->tab.sz.pic_size_in_min_tu != pic_size_in_min_tu;
212
213 2884 tl_init(l, 0, changed);
214
215
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 8652 for (int i = LUMA; i <= CHROMA; i++) {
216
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 5768 TL_ADD(tb_width[i], pic_size_in_min_tu);
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 5768 TL_ADD(tb_height[i], pic_size_in_min_tu);
218 }
219
220
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 8652 for (int vertical = 0; vertical < 2; vertical++) {
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 5768 TL_ADD(max_len_p[vertical], pic_size_in_min_tu);
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 5768 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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 8652 for (int i = CB; i < VVC_MAX_SAMPLE_ARRAYS; i++)
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 5768 TL_ADD(qp[i], pic_size_in_min_tu);
228 2884 }
229
230 2884 static void pixel_buffer_nz_tl_init(TabList *l, VVCFrameContext *fc)
231 {
232 2884 const VVCSPS *sps = fc->ps.sps;
233 2884 const VVCPPS *pps = fc->ps.pps;
234
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 2884 const int width = pps ? pps->width : 0;
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 2884 const int height = pps ? pps->height : 0;
236
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 2884 const int ctu_width = pps ? pps->ctb_width : 0;
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 2884 const int ctu_height = pps ? pps->ctb_height : 0;
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 2884 const int chroma_idc = sps ? sps->r->sps_chroma_format_idc : 0;
239
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 2884 const int ps = sps ? sps->pixel_shift : 0;
240
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 2884 const int c_end = chroma_idc ? VVC_MAX_SAMPLE_ARRAYS : 1;
241 8376 const int changed = fc->tab.sz.chroma_format_idc != chroma_idc ||
242
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 2608 fc->tab.sz.width != width || fc->tab.sz.height != height ||
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 8090 fc->tab.sz.ctu_width != ctu_width || fc->tab.sz.ctu_height != ctu_height ||
244
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 2598 fc->tab.sz.pixel_shift != ps;
245
246 2884 tl_init(l, 0, changed);
247
248
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 10320 for (int c_idx = 0; c_idx < c_end; c_idx++) {
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 7436 const int w = width >> (sps ? sps->hshift[c_idx] : 0);
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 7436 const int h = height >> (sps ? sps->vshift[c_idx] : 0);
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 7436 TL_ADD(sao_pixel_buffer_h[c_idx], (w * 2 * ctu_height) << ps);
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 7436 TL_ADD(sao_pixel_buffer_v[c_idx], (h * 2 * ctu_width) << ps);
253 }
254
255
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 10320 for (int c_idx = 0; c_idx < c_end; c_idx++) {
256
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 7436 const int w = width >> (sps ? sps->hshift[c_idx] : 0);
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 7436 const int h = height >> (sps ? sps->vshift[c_idx] : 0);
258
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 7436 const int border_pixels = c_idx ? ALF_BORDER_CHROMA : ALF_BORDER_LUMA;
259
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 22308 for (int i = 0; i < 2; i++) {
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 14872 TL_ADD(alf_pixel_buffer_h[c_idx][i], (w * border_pixels * ctu_height) << ps);
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 14872 TL_ADD(alf_pixel_buffer_v[c_idx][i], h * ALF_PADDING_SIZE * ctu_width);
262 }
263 }
264 2884 }
265
266 2884 static void msm_tl_init(TabList *l, VVCFrameContext *fc)
267 {
268 2884 const VVCPPS *pps = fc->ps.pps;
269
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 2884 const int w32 = pps ? AV_CEIL_RSHIFT(pps->width, 5) : 0;
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 2884 const int h32 = pps ? AV_CEIL_RSHIFT(pps->height, 5) : 0;
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 5482 const int changed = AV_CEIL_RSHIFT(fc->tab.sz.width, 5) != w32 ||
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 2598 AV_CEIL_RSHIFT(fc->tab.sz.height, 5) != h32;
273
274 2884 tl_init(l, 1, changed);
275
276
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 8652 for (int i = LUMA; i <= CHROMA; i++)
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 5768 TL_ADD(msm[i], w32 * h32);
278 2884 }
279
280 2884 static void ispmf_tl_init(TabList *l, VVCFrameContext *fc)
281 {
282 2884 const VVCPPS *pps = fc->ps.pps;
283
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 2884 const int w64 = pps ? AV_CEIL_RSHIFT(pps->width, 6) : 0;
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 2884 const int h64 = pps ? AV_CEIL_RSHIFT(pps->height, 6) : 0;
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 5482 const int changed = AV_CEIL_RSHIFT(fc->tab.sz.width, 6) != w64 ||
286
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 2598 AV_CEIL_RSHIFT(fc->tab.sz.height, 6) != h64;
287
288 2884 tl_init(l, 1, changed);
289
290
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 2884 TL_ADD(ispmf, w64 * h64);
291 2884 }
292
293 2884 static void ibc_tl_init(TabList *l, VVCFrameContext *fc)
294 {
295 2884 const VVCSPS *sps = fc->ps.sps;
296 2884 const VVCPPS *pps = fc->ps.pps;
297
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 2884 const int ctu_height = pps ? pps->ctb_height : 0;
298
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 2884 const int ctu_size = sps ? sps->ctb_size_y : 0;
299
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 2884 const int ps = sps ? sps->pixel_shift : 0;
300
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 2884 const int chroma_idc = sps ? sps->r->sps_chroma_format_idc : 0;
301
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 2884 const int has_ibc = sps ? sps->r->sps_ibc_enabled_flag : 0;
302 8376 const int changed = fc->tab.sz.chroma_format_idc != chroma_idc ||
303
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 2608 fc->tab.sz.ctu_height != ctu_height ||
304
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 5958 fc->tab.sz.ctu_size != ctu_size ||
305
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 466 fc->tab.sz.pixel_shift != ps;
306
307
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 2884 fc->tab.sz.ibc_buffer_width = ctu_size ? 2 * MAX_CTU_SIZE * MAX_CTU_SIZE / ctu_size : 0;
308
309 2884 tl_init(l, has_ibc, changed);
310
311
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 11536 for (int i = LUMA; i < VVC_MAX_SAMPLE_ARRAYS; i++) {
312
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 8652 const int hs = sps ? sps->hshift[i] : 0;
313
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 8652 const int vs = sps ? sps->vshift[i] : 0;
314
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 8652 TL_ADD(ibc_vir_buf[i], fc->tab.sz.ibc_buffer_width * ctu_size * ctu_height << ps >> hs >> vs);
315 }
316 2884 }
317
318 typedef void (*tl_init_fn)(TabList *l, VVCFrameContext *fc);
319
320 2884 static int frame_context_for_each_tl(VVCFrameContext *fc, int (*unary_fn)(TabList *l))
321 {
322 2884 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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 34608 for (int i = 0; i < FF_ARRAY_ELEMS(init); i++) {
337 TabList l;
338 int ret;
339
340 31724 init[i](&l, fc);
341 31724 ret = unary_fn(&l);
342
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 31724 if (ret < 0)
343 ✗ return ret;
344 }
345 2884 return 0;
346 }
347
348 1818 static void free_cus(VVCFrameContext *fc)
349 {
350
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 1818 if (fc->tab.cus) {
351
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 54541 for (int i = 0; i < fc->tab.sz.ctu_count; i++)
352 53475 ff_vvc_ctu_free_cus(fc->tab.cus + i);
353 }
354 1818 }
355
356 752 static void pic_arrays_free(VVCFrameContext *fc)
357 {
358 752 free_cus(fc);
359 752 frame_context_for_each_tl(fc, tl_free);
360 752 av_refstruct_pool_uninit(&fc->rpl_tab_pool);
361 752 av_refstruct_pool_uninit(&fc->tab_dmvr_mvf_pool);
362
363 752 memset(&fc->tab.sz, 0, sizeof(fc->tab.sz));
364 752 }
365
366 1066 static int pic_arrays_init(VVCContext *s, VVCFrameContext *fc)
367 {
368 1066 const VVCSPS *sps = fc->ps.sps;
369 1066 const VVCPPS *pps = fc->ps.pps;
370 1066 const int ctu_count = pps->ctb_count;
371 1066 const int pic_size_in_min_pu = pps->min_pu_width * pps->min_pu_height;
372 int ret;
373
374 1066 free_cus(fc);
375
376 1066 ret = frame_context_for_each_tl(fc, tl_create);
377
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 1066 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 1066 memset(fc->tab.cus, 0, sizeof(*fc->tab.cus) * ctu_count);
382
383 1066 memset(fc->tab.slice_idx, -1, sizeof(*fc->tab.slice_idx) * ctu_count);
384
385
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 1066 if (fc->tab.sz.ctu_count != ctu_count) {
386 286 av_refstruct_pool_uninit(&fc->rpl_tab_pool);
387 286 fc->rpl_tab_pool = av_refstruct_pool_alloc(ctu_count * sizeof(RefPicListTab), 0);
388
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 286 if (!fc->rpl_tab_pool)
389 ✗ return AVERROR(ENOMEM);
390 }
391
392
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 1066 if (fc->tab.sz.pic_size_in_min_pu != pic_size_in_min_pu) {
393 286 av_refstruct_pool_uninit(&fc->tab_dmvr_mvf_pool);
394 286 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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 286 if (!fc->tab_dmvr_mvf_pool)
397 ✗ return AVERROR(ENOMEM);
398 }
399
400 1066 fc->tab.sz.ctu_count = pps->ctb_count;
401 1066 fc->tab.sz.ctu_size = 1 << sps->ctb_log2_size_y << sps->ctb_log2_size_y;
402 1066 fc->tab.sz.pic_size_in_min_cb = pps->min_cb_width * pps->min_cb_height;
403 1066 fc->tab.sz.pic_size_in_min_pu = pic_size_in_min_pu;
404 1066 fc->tab.sz.pic_size_in_min_tu = pps->min_tu_width * pps->min_tu_height;
405 1066 fc->tab.sz.width = pps->width;
406 1066 fc->tab.sz.height = pps->height;
407 1066 fc->tab.sz.ctu_width = pps->ctb_width;
408 1066 fc->tab.sz.ctu_height = pps->ctb_height;
409 1066 fc->tab.sz.chroma_format_idc = sps->r->sps_chroma_format_idc;
410 1066 fc->tab.sz.pixel_shift = sps->pixel_shift;
411
412 1066 return 0;
413 }
414
415 1066 int ff_vvc_per_frame_init(VVCFrameContext *fc)
416 {
417 1066 return frame_context_for_each_tl(fc, tl_zero);
418 }
419
420 3465 static int min_positive(const int idx, const int diff, const int min_diff)
421 {
422
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 3465 return diff > 0 && (idx < 0 || diff < min_diff);
423 }
424
425 3473 static int max_negtive(const int idx, const int diff, const int max_diff)
426 {
427
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 3473 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 3616 static int8_t smvd_find(const VVCFrameContext *fc, const SliceContext *sc, int lx, smvd_find_fxn find)
433 {
434 3616 const H266RawSliceHeader *rsh = sc->sh.r;
435 3616 const RefPicList *rpl = sc->rpl + lx;
436 3616 const int poc = fc->ref->poc;
437 3616 int8_t idx = -1;
438 3616 int old_diff = -1;
439
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 11091 for (int i = 0; i < rsh->num_ref_idx_active[lx]; i++) {
440
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 7475 if (!rpl->refs[i].is_lt) {
441 6938 int diff = poc - rpl->refs[i].poc;
442
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 6938 if (find(idx, diff, old_diff)) {
443 3035 idx = i;
444 3035 old_diff = diff;
445 }
446 }
447 }
448 3616 return idx;
449 }
450
451 1547 static void smvd_ref_idx(const VVCFrameContext *fc, SliceContext *sc)
452 {
453 1547 VVCSH *sh = &sc->sh;
454
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 1547 if (IS_B(sh->r)) {
455 1513 sh->ref_idx_sym[0] = smvd_find(fc, sc, 0, min_positive);
456 1513 sh->ref_idx_sym[1] = smvd_find(fc, sc, 1, max_negtive);
457
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 1513 if (sh->ref_idx_sym[0] == -1 || sh->ref_idx_sym[1] == -1) {
458 295 sh->ref_idx_sym[0] = smvd_find(fc, sc, 0, max_negtive);
459 295 sh->ref_idx_sym[1] = smvd_find(fc, sc, 1, min_positive);
460 }
461 }
462 1547 }
463
464 1537 static void eps_free(SliceContext *slice)
465 {
466 1537 av_freep(&slice->eps);
467 1537 slice->nb_eps = 0;
468 1537 }
469
470 752 static void slices_free(VVCFrameContext *fc)
471 {
472
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 752 if (fc->slices) {
473
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 1104 for (int i = 0; i < fc->nb_slices_allocated; i++) {
474 818 SliceContext *slice = fc->slices[i];
475
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 818 if (slice) {
476 818 av_refstruct_unref(&slice->ref);
477 818 av_refstruct_unref(&slice->sh.r);
478 818 eps_free(slice);
479 818 av_free(slice);
480 }
481 }
482 286 av_freep(&fc->slices);
483 }
484 752 fc->nb_slices_allocated = 0;
485 752 fc->nb_slices = 0;
486 752 }
487
488 1831 static int slices_realloc(VVCFrameContext *fc)
489 {
490 void *p;
491 1831 const int size = (fc->nb_slices_allocated + 1) * 3 / 2;
492
493
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 1831 if (fc->nb_slices < fc->nb_slices_allocated)
494 1435 return 0;
495
496 396 p = av_realloc_array(fc->slices, size, sizeof(*fc->slices));
497
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 396 if (!p)
498 ✗ return AVERROR(ENOMEM);
499
500 396 fc->slices = p;
501
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 1214 for (int i = fc->nb_slices_allocated; i < size; i++) {
502 818 fc->slices[i] = av_mallocz(sizeof(*fc->slices[0]));
503
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 818 if (!fc->slices[i]) {
504 ✗ fc->nb_slices_allocated = i;
505 ✗ return AVERROR(ENOMEM);
506 }
507 818 fc->slices[i]->slice_idx = i;
508 }
509 396 fc->nb_slices_allocated = size;
510
511 396 return 0;
512 }
513
514 2204 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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 2204 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 1831 size = bytestream2_get_bytes_left(gb);
534 }
535 2204 return size;
536 }
537
538 2204 static int ep_init_cabac_decoder(EntryPoint *ep, GetByteContext *gb, const int size)
539 {
540 int ret;
541
542
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 2204 av_assert0(size <= bytestream2_get_bytes_left(gb));
543 2204 ret = ff_init_cabac_decoder(&ep->cc, gb->buffer, size);
544
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 2204 if (ret < 0)
545 ✗ return ret;
546 2204 bytestream2_skipu(gb, size);
547 2204 return 0;
548 }
549
550 2204 static int ep_init(EntryPoint *ep, const int ctu_addr, const int ctu_end,
551 GetByteContext *gb, const int size)
552 {
553 2204 const int ret = ep_init_cabac_decoder(ep, gb, size);
554
555
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 2204 if (ret < 0)
556 ✗ return ret;
557
558 2204 ep->ctu_start = ctu_addr;
559 2204 ep->ctu_end = ctu_end;
560
561
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 8816 for (int c_idx = LUMA; c_idx <= CR; c_idx++)
562 6612 ep->pp[c_idx].size = 0;
563
564 2204 return 0;
565 }
566
567 1831 static int slice_init_entry_points(SliceContext *sc,
568 VVCFrameContext *fc, const H2645NAL *nal, const CodedBitstreamUnit *unit)
569 {
570 1831 const VVCSH *sh = &sc->sh;
571 1831 const H266RawSlice *slice = unit->content_ref;
572 1831 int nb_eps = sh->r->num_entry_points + 1;
573 1831 int ctu_addr = 0;
574 GetByteContext gb;
575 int ret;
576
577
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 1831 if (sc->nb_eps != nb_eps) {
578 719 eps_free(sc);
579 719 sc->eps = av_calloc(nb_eps, sizeof(*sc->eps));
580
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 719 if (!sc->eps)
581 ✗ return AVERROR(ENOMEM);
582 719 sc->nb_eps = nb_eps;
583 }
584
585 1831 bytestream2_init(&gb, slice->data, slice->data_size);
586
587
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 4035 for (int i = 0; i < sc->nb_eps; i++)
588 {
589 2204 const int size = get_ep_size(sc->sh.r, &gb, nal, slice->header_size, i);
590
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 2204 const int ctu_end = (i + 1 == sc->nb_eps ? sh->num_ctus_in_curr_slice : sh->entry_point_start_ctu[i]);
591 2204 EntryPoint *ep = sc->eps + i;
592
593 2204 ret = ep_init(ep, ctu_addr, ctu_end, &gb, size);
594
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 2204 if (ret < 0)
595 ✗ return ret;
596
597
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 55679 for (int j = ep->ctu_start; j < ep->ctu_end; j++) {
598 53475 const int rs = sc->sh.ctb_addr_in_curr_slice[j];
599 53475 fc->tab.slice_idx[rs] = sc->slice_idx;
600 }
601
602
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 2204 if (i + 1 < sc->nb_eps)
603 373 ctu_addr = sh->entry_point_start_ctu[i];
604 }
605
606 1831 return 0;
607 }
608
609 3329 static VVCFrameContext* get_frame_context(const VVCContext *s, const VVCFrameContext *fc, const int delta)
610 {
611 3329 const int size = s->nb_fcs;
612 3329 const int idx = (fc - s->fcs + delta + size) % size;
613 3329 return s->fcs + idx;
614 }
615
616 5041 static int ref_frame(VVCFrame *dst, const VVCFrame *src)
617 {
618 int ret;
619
620 5041 ret = av_frame_ref(dst->frame, src->frame);
621
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 5041 if (ret < 0)
622 ✗ return ret;
623
624 5041 av_refstruct_replace(&dst->sps, src->sps);
625 5041 av_refstruct_replace(&dst->pps, src->pps);
626
627
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 5041 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 5041 av_refstruct_replace(&dst->progress, src->progress);
636
637 5041 av_refstruct_replace(&dst->tab_dmvr_mvf, src->tab_dmvr_mvf);
638
639 5041 av_refstruct_replace(&dst->rpl_tab, src->rpl_tab);
640 5041 av_refstruct_replace(&dst->rpl, src->rpl);
641 5041 av_refstruct_replace(&dst->hwaccel_picture_private,
642 5041 src->hwaccel_picture_private);
643 5041 dst->nb_rpl_elems = src->nb_rpl_elems;
644
645 5041 dst->poc = src->poc;
646 5041 dst->ctb_count = src->ctb_count;
647
648 5041 dst->scaling_win = src->scaling_win;
649 5041 dst->ref_width = src->ref_width;
650 5041 dst->ref_height = src->ref_height;
651
652 5041 dst->flags = src->flags;
653 5041 dst->sequence = src->sequence;
654
655 5041 return 0;
656 }
657
658 752 static av_cold void frame_context_free(VVCFrameContext *fc)
659 {
660 752 slices_free(fc);
661
662 752 av_refstruct_pool_uninit(&fc->tu_pool);
663 752 av_refstruct_pool_uninit(&fc->cu_pool);
664
665
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 13536 for (int i = 0; i < FF_ARRAY_ELEMS(fc->DPB); i++) {
666 12784 ff_vvc_unref_frame(fc, &fc->DPB[i], ~0);
667 12784 av_frame_free(&fc->DPB[i].frame);
668 12784 av_frame_free(&fc->DPB[i].frame_grain);
669 }
670
671 752 ff_vvc_frame_thread_free(fc);
672 752 pic_arrays_free(fc);
673 752 av_frame_free(&fc->output_frame);
674 752 ff_vvc_frame_ps_free(&fc->ps);
675 752 ff_vvc_sei_reset(&fc->sei);
676 752 }
677
678 752 static av_cold int frame_context_init(VVCFrameContext *fc, AVCodecContext *avctx)
679 {
680
681 752 fc->log_ctx = avctx;
682
683 752 fc->output_frame = av_frame_alloc();
684
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 752 if (!fc->output_frame)
685 ✗ return AVERROR(ENOMEM);
686
687
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 13536 for (int j = 0; j < FF_ARRAY_ELEMS(fc->DPB); j++) {
688 12784 fc->DPB[j].frame = av_frame_alloc();
689
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 12784 if (!fc->DPB[j].frame)
690 ✗ return AVERROR(ENOMEM);
691
692 12784 fc->DPB[j].frame_grain = av_frame_alloc();
693
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 12784 if (!fc->DPB[j].frame_grain)
694 ✗ return AVERROR(ENOMEM);
695 }
696 752 fc->cu_pool = av_refstruct_pool_alloc(sizeof(CodingUnit), 0);
697
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 752 if (!fc->cu_pool)
698 ✗ return AVERROR(ENOMEM);
699
700 752 fc->tu_pool = av_refstruct_pool_alloc(sizeof(TransformUnit), 0);
701
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 752 if (!fc->tu_pool)
702 ✗ return AVERROR(ENOMEM);
703
704 752 return 0;
705 }
706
707 1066 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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 1066 if (s->nb_frames && s->nb_fcs > 1) {
713 972 VVCFrameContext *prev = get_frame_context(s, fc, -1);
714
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 17496 for (int i = 0; i < FF_ARRAY_ELEMS(fc->DPB); i++) {
715 16524 ff_vvc_unref_frame(fc, &fc->DPB[i], ~0);
716
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 16524 if (prev->DPB[i].frame->buf[0]) {
717 5041 ret = ref_frame(&fc->DPB[i], &prev->DPB[i]);
718
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 5041 if (ret < 0)
719 ✗ return ret;
720 }
721 }
722
723 972 ret = ff_vvc_sei_replace(&fc->sei, &prev->sei);
724
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 972 if (ret < 0)
725 ✗ return ret;
726 }
727
728
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 1066 if (IS_IDR(s)) {
729 103 s->seq_decode = (s->seq_decode + 1) & 0xff;
730 103 ff_vvc_clear_refs(fc);
731 }
732
733 1066 ret = pic_arrays_init(s, fc);
734
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 1066 if (ret < 0)
735 ✗ return ret;
736 1066 ff_vvc_dsp_init(&fc->vvcdsp, fc->ps.sps->bit_depth);
737 1066 ff_videodsp_init(&fc->vdsp, fc->ps.sps->bit_depth);
738 1066 return 0;
739 }
740
741 /* SEI does not affect decoding, so we ignore the return value */
742 1066 static void decode_prefix_sei(VVCFrameContext *fc, VVCContext *s)
743 {
744 1066 CodedBitstreamFragment *frame = &s->current_frame;
745
746
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 4983 for (int i = 0; i < frame->nb_units; i++) {
747 3917 const CodedBitstreamUnit *unit = frame->units + i;
748
749
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 3917 if (unit->type == VVC_PREFIX_SEI_NUT) {
750 90 int ret = ff_vvc_sei_decode(&fc->sei, unit->content_ref, fc);
751
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 90 if (ret < 0)
752 ✗ return;
753 }
754 }
755 }
756
757 1066 static int set_side_data(VVCContext *s, VVCFrameContext *fc)
758 {
759 1066 AVFrame *out = fc->ref->frame;
760
761 2132 return ff_h2645_sei_to_frame(out, &fc->sei.common, AV_CODEC_ID_VVC, s->avctx,
762 1066 NULL, fc->ps.sps->bit_depth, fc->ps.sps->bit_depth, fc->ref->poc);
763 }
764
765 1066 static int check_film_grain(VVCContext *s, VVCFrameContext *fc)
766 {
767 int ret;
768
769 2132 fc->ref->needs_fg = (fc->sei.common.film_grain_characteristics &&
770 ✗ fc->sei.common.film_grain_characteristics->present ||
771
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 1066 fc->sei.common.aom_film_grain.enable) &&
772
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 2132 !(s->avctx->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN) &&
773 ✗ !s->avctx->hwaccel;
774
775
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 1066 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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 1066 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 1066 return 0;
799 }
800
801 1066 static int frame_start(VVCContext *s, VVCFrameContext *fc, SliceContext *sc)
802 {
803 1066 const VVCPH *ph = &fc->ps.ph;
804 1066 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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 1066 if (!s->temporal_id && !ph->r->ph_non_ref_pic_flag && !(IS_RASL(s) || IS_RADL(s)))
809 221 s->poc_tid0 = ph->poc;
810
811
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 1066 if ((ret = ff_vvc_set_new_ref(s, fc, &fc->frame)) < 0)
812 ✗ goto fail;
813
814 1066 decode_prefix_sei(fc, s);
815
816 1066 ret = set_side_data(s, fc);
817
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 1066 if (ret < 0)
818 ✗ goto fail;
819
820 1066 ret = check_film_grain(s, fc);
821
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 1066 if (ret < 0)
822 ✗ goto fail;
823
824
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 1066 if (!IS_IDR(s))
825 963 ff_vvc_bump_frame(s, fc);
826
827 1066 av_frame_unref(fc->output_frame);
828
829
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 1066 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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 1066 if ((ret = ff_vvc_frame_rpl(s, fc, sc)) < 0)
833 ✗ goto fail;
834
835
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 1066 if ((ret = ff_vvc_frame_thread_init(fc)) < 0)
836 ✗ goto fail;
837 1066 return 0;
838 ✗ fail:
839 ✗ if (fc->ref)
840 ✗ ff_vvc_unref_frame(fc, fc->ref, ~0);
841 ✗ fc->ref = NULL;
842 ✗ return ret;
843 }
844
845 1831 static int slice_start(SliceContext *sc, VVCContext *s, VVCFrameContext *fc,
846 const CodedBitstreamUnit *unit, const int is_first_slice)
847 {
848 1831 VVCSH *sh = &sc->sh;
849 int ret;
850
851 1831 ret = ff_vvc_decode_sh(sh, &fc->ps, unit);
852
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 1831 if (ret < 0)
853 ✗ return ret;
854
855
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 1831 if (is_first_slice) {
856 1066 ret = frame_start(s, fc, sc);
857
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 1066 if (ret < 0)
858 ✗ return ret;
859
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 765 } else if (fc->ref) {
860
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 765 if (!IS_I(sh->r)) {
861 599 ret = ff_vvc_slice_rpl(s, fc, sc);
862
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 599 if (ret < 0) {
863 ✗ av_log(fc->log_ctx, AV_LOG_WARNING,
864 "Error constructing the reference lists for the current slice.\n");
865 ✗ return ret;
866 }
867 }
868 } else {
869 ✗ av_log(fc->log_ctx, AV_LOG_ERROR, "First slice in a frame missing.\n");
870 ✗ return ret;
871 }
872
873
2/2
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 1831 if (!IS_I(sh->r))
874 1547 smvd_ref_idx(fc, sc);
875
876 1831 return 0;
877 }
878
879 95 static enum AVPixelFormat get_format(AVCodecContext *avctx, const VVCSPS *sps)
880 {
881 #define HWACCEL_MAX CONFIG_VVC_VAAPI_HWACCEL
882
883 95 enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmt = pix_fmts;
884
885
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 95 switch (sps->pix_fmt) {
886 5 case AV_PIX_FMT_YUV420P:
887 #if CONFIG_VVC_VAAPI_HWACCEL
888 5 *fmt++ = AV_PIX_FMT_VAAPI;
889 #endif
890 5 break;
891 80 case AV_PIX_FMT_YUV420P10:
892 #if CONFIG_VVC_VAAPI_HWACCEL
893 80 *fmt++ = AV_PIX_FMT_VAAPI;
894 #endif
895 80 break;
896 }
897
898 95 *fmt++ = sps->pix_fmt;
899 95 *fmt = AV_PIX_FMT_NONE;
900
901 95 return ff_get_format(avctx, pix_fmts);
902 }
903
904 1066 static int export_frame_params(VVCContext *s, const VVCFrameContext *fc)
905 {
906 1066 AVCodecContext *c = s->avctx;
907 1066 const VVCSPS *sps = fc->ps.sps;
908 1066 const VVCPPS *pps = fc->ps.pps;
909
910 // Reset the format if pix_fmt/w/h change.
911
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 1066 if (c->sw_pix_fmt != sps->pix_fmt || c->coded_width != pps->width || c->coded_height != pps->height) {
912 95 c->coded_width = pps->width;
913 95 c->coded_height = pps->height;
914 95 c->sw_pix_fmt = sps->pix_fmt;
915 95 c->pix_fmt = get_format(c, sps);
916
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 95 if (c->pix_fmt < 0)
917 ✗ return AVERROR_INVALIDDATA;
918 }
919
920 1066 c->width = pps->width - ((pps->r->pps_conf_win_left_offset + pps->r->pps_conf_win_right_offset) << sps->hshift[CHROMA]);
921 1066 c->height = pps->height - ((pps->r->pps_conf_win_top_offset + pps->r->pps_conf_win_bottom_offset) << sps->vshift[CHROMA]);
922
923 1066 return 0;
924 }
925
926 1066 static int frame_setup(VVCFrameContext *fc, VVCContext *s)
927 {
928 1066 int ret = ff_vvc_decode_frame_ps(fc, s);
929
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 1066 if (ret < 0)
930 ✗ return ret;
931
932 1066 ret = frame_context_setup(fc, s);
933
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 1066 if (ret < 0)
934 ✗ return ret;
935
936 1066 ret = export_frame_params(s, fc);
937
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 1066 if (ret < 0)
938 ✗ return ret;
939
940 1066 return 0;
941 }
942
943 1831 static int decode_slice(VVCContext *s, VVCFrameContext *fc, AVBufferRef *buf_ref,
944 const H2645NAL *nal, const CodedBitstreamUnit *unit)
945 {
946 int ret;
947 SliceContext *sc;
948 1831 const int is_first_slice = !fc->nb_slices;
949
950 1831 ret = slices_realloc(fc);
951
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 1831 if (ret < 0)
952 ✗ return ret;
953
954 1831 sc = fc->slices[fc->nb_slices];
955 1831 av_refstruct_replace(&sc->ref, unit->content_ref);
956
957 1831 s->vcl_unit_type = nal->type;
958
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 1831 if (is_first_slice) {
959 1066 ret = frame_setup(fc, s);
960
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 1066 if (ret < 0)
961 ✗ return ret;
962 }
963
964 1831 ret = slice_start(sc, s, fc, unit, is_first_slice);
965
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 1831 if (ret < 0)
966 ✗ return ret;
967
968 1831 ret = slice_init_entry_points(sc, fc, nal, unit);
969
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 1831 if (ret < 0)
970 ✗ return ret;
971
972
1/2
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 1831 if (s->avctx->hwaccel) {
973 ✗ if (is_first_slice) {
974 ✗ ret = FF_HW_CALL(s->avctx, start_frame, buf_ref, NULL, 0);
975 ✗ if (ret < 0)
976 ✗ return ret;
977 }
978
979 ✗ ret = FF_HW_CALL(s->avctx, decode_slice,
980 nal->raw_data, nal->raw_size);
981 ✗ if (ret < 0)
982 ✗ return ret;
983 }
984
985 1831 fc->nb_slices++;
986
987 1831 return 0;
988 }
989
990 3917 static int decode_nal_unit(VVCContext *s, VVCFrameContext *fc, AVBufferRef *buf_ref,
991 const H2645NAL *nal, const CodedBitstreamUnit *unit)
992 {
993 int ret;
994
995 3917 s->temporal_id = nal->temporal_id;
996
997
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 3917 if (nal->nuh_layer_id > 0) {
998 ✗ avpriv_report_missing_feature(fc->log_ctx,
999 "Decoding of multilayer bitstreams");
1000 ✗ return AVERROR_PATCHWELCOME;
1001 }
1002
1003
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 3917 switch (unit->type) {
1004 456 case VVC_VPS_NUT:
1005 case VVC_SPS_NUT:
1006 case VVC_PPS_NUT:
1007 /* vps, sps, sps cached by s->cbc */
1008 456 break;
1009 1831 case VVC_TRAIL_NUT:
1010 case VVC_STSA_NUT:
1011 case VVC_RADL_NUT:
1012 case VVC_RASL_NUT:
1013 case VVC_IDR_W_RADL:
1014 case VVC_IDR_N_LP:
1015 case VVC_CRA_NUT:
1016 case VVC_GDR_NUT:
1017 1831 ret = decode_slice(s, fc, buf_ref, nal, unit);
1018
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 1831 if (ret < 0)
1019 ✗ return ret;
1020 1831 break;
1021 427 case VVC_PREFIX_APS_NUT:
1022 case VVC_SUFFIX_APS_NUT:
1023 427 ret = ff_vvc_decode_aps(&s->ps, unit);
1024
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 427 if (ret < 0)
1025 ✗ return ret;
1026 427 break;
1027 90 case VVC_PREFIX_SEI_NUT:
1028 /* handle by decode_prefix_sei() */
1029 90 break;
1030
1031 1008 case VVC_SUFFIX_SEI_NUT:
1032 /* SEI does not affect decoding, so we ignore the return value*/
1033
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 1008 if (fc)
1034 1008 ff_vvc_sei_decode(&fc->sei, unit->content_ref, fc);
1035 1008 break;
1036 }
1037
1038 3917 return 0;
1039 }
1040
1041 1066 static int decode_nal_units(VVCContext *s, VVCFrameContext *fc, AVPacket *avpkt)
1042 {
1043 1066 const CodedBitstreamH266Context *h266 = s->cbc->priv_data;
1044 1066 CodedBitstreamFragment *frame = &s->current_frame;
1045 1066 int ret = 0;
1046 1066 s->last_eos = s->eos;
1047 1066 s->eos = 0;
1048 1066 fc->ref = NULL;
1049
1050 1066 ff_cbs_fragment_reset(frame);
1051 1066 ret = ff_cbs_read_packet(s->cbc, frame, avpkt);
1052
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 1066 if (ret < 0) {
1053 ✗ av_log(s->avctx, AV_LOG_ERROR, "Failed to read packet.\n");
1054 ✗ return ret;
1055 }
1056 /* decode the NAL units */
1057
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 4983 for (int i = 0; i < frame->nb_units; i++) {
1058 3917 const H2645NAL *nal = h266->common.read_packet.nals + i;
1059 3917 const CodedBitstreamUnit *unit = frame->units + i;
1060
1061
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 3917 if (unit->type == VVC_EOB_NUT || unit->type == VVC_EOS_NUT) {
1062 ✗ s->last_eos = 1;
1063 } else {
1064 3917 ret = decode_nal_unit(s, fc, avpkt->buf, nal, unit);
1065
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 3917 if (ret < 0) {
1066 ✗ av_log(s->avctx, AV_LOG_WARNING,
1067 "Error parsing NAL unit #%d.\n", i);
1068 ✗ goto fail;
1069 }
1070 }
1071 }
1072 1066 return 0;
1073
1074 ✗ fail:
1075 ✗ if (fc->ref)
1076 ✗ ff_vvc_report_frame_finished(fc->ref);
1077 ✗ return ret;
1078 }
1079
1080 1066 static int frame_end(VVCContext *s, VVCFrameContext *fc)
1081 {
1082 const AVFilmGrainParams *fgp;
1083 int ret;
1084
1085
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 1066 if (fc->ref->needs_fg) {
1086 ✗ av_assert0(fc->ref->frame_grain->buf[0]);
1087 ✗ fgp = av_film_grain_params_select(fc->ref->frame);
1088 ✗ switch (fgp->type) {
1089 ✗ case AV_FILM_GRAIN_PARAMS_NONE:
1090 ✗ av_assert0(0);
1091 return AVERROR_BUG;
1092 ✗ case AV_FILM_GRAIN_PARAMS_H274:
1093 ✗ ret = ff_h274_apply_film_grain(fc->ref->frame_grain, fc->ref->frame, fgp);
1094 ✗ if (ret < 0)
1095 ✗ return ret;
1096 ✗ break;
1097 ✗ case AV_FILM_GRAIN_PARAMS_AV1:
1098 ✗ ret = ff_aom_apply_film_grain(fc->ref->frame_grain, fc->ref->frame, fgp);
1099 ✗ if (ret < 0)
1100 ✗ return ret;
1101 ✗ break;
1102 }
1103 }
1104
1105
2/4
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 1066 if (!s->avctx->hwaccel && s->avctx->err_recognition & AV_EF_CRCCHECK) {
1106 ✗ VVCSEI *sei = &fc->sei;
1107 ✗ if (sei->picture_hash.present) {
1108 ✗ ret = ff_h274_hash_init(&s->hash_ctx, sei->picture_hash.hash_type);
1109 ✗ if (ret < 0)
1110 ✗ return ret;
1111
1112 ✗ ret = ff_h274_hash_verify(s->hash_ctx, &sei->picture_hash, fc->ref->frame, fc->ps.pps->width, fc->ps.pps->height);
1113 ✗ av_log(s->avctx, ret < 0 ? AV_LOG_ERROR : AV_LOG_DEBUG,
1114 "Verifying checksum for frame with decode_order %d: %s\n",
1115 ✗ (int)fc->decode_order, ret < 0 ? "incorrect": "correct");
1116 ✗ if (ret < 0 && (s->avctx->err_recognition & AV_EF_EXPLODE))
1117 ✗ return ret;
1118 }
1119 }
1120
1121 1066 return 0;
1122 }
1123
1124 1066 static int wait_delayed_frame(VVCContext *s, AVFrame *output, int *got_output)
1125 {
1126 1066 VVCFrameContext *delayed = get_frame_context(s, s->fcs, s->nb_frames - s->nb_delayed);
1127 1066 int ret = ff_vvc_frame_wait(s, delayed);
1128
1129
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 1066 if (!ret) {
1130 1066 ret = frame_end(s, delayed);
1131
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 1066 if (ret >= 0 && delayed->output_frame->buf[0] && output) {
1132 890 av_frame_move_ref(output, delayed->output_frame);
1133 890 *got_output = 1;
1134 }
1135 }
1136 1066 s->nb_delayed--;
1137
1138 1066 return ret;
1139 }
1140
1141 1066 static int submit_frame(VVCContext *s, VVCFrameContext *fc, AVFrame *output, int *got_output)
1142 {
1143 int ret;
1144
1145
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 1066 if (s->avctx->hwaccel) {
1146 ✗ if (ret = FF_HW_SIMPLE_CALL(s->avctx, end_frame) < 0) {
1147 ✗ av_log(s->avctx, AV_LOG_ERROR,
1148 "Hardware accelerator failed to decode picture\n");
1149 ✗ ff_vvc_unref_frame(fc, fc->ref, ~0);
1150 ✗ return ret;
1151 }
1152 } else {
1153
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 1066 if (ret = ff_vvc_frame_submit(s, fc) < 0) {
1154 ✗ ff_vvc_report_frame_finished(fc->ref);
1155 ✗ return ret;
1156 }
1157 }
1158
1159 1066 s->nb_frames++;
1160 1066 s->nb_delayed++;
1161
1162
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 1066 if (s->nb_delayed >= s->nb_fcs || s->avctx->hwaccel) {
1163
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 805 if ((ret = wait_delayed_frame(s, output, got_output)) < 0)
1164 ✗ return ret;
1165 }
1166 1066 return 0;
1167 }
1168
1169 312 static int get_decoded_frame(VVCContext *s, AVFrame *output, int *got_output)
1170 {
1171 int ret;
1172
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 330 while (s->nb_delayed) {
1173
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 199 if ((ret = wait_delayed_frame(s, output, got_output)) < 0)
1174 ✗ return ret;
1175
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 199 if (*got_output)
1176 181 return 0;
1177 }
1178
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 131 if (s->nb_frames) {
1179 //we still have frames cached in dpb.
1180 131 VVCFrameContext *last = get_frame_context(s, s->fcs, s->nb_frames - 1);
1181
1182 131 ret = ff_vvc_output_frame(s, last, output, 0, 1);
1183
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 131 if (ret < 0)
1184 ✗ return ret;
1185 131 *got_output = ret;
1186 }
1187 131 return 0;
1188 }
1189
1190 1378 static int vvc_decode_frame(AVCodecContext *avctx, AVFrame *output,
1191 int *got_output, AVPacket *avpkt)
1192 {
1193 1378 VVCContext *s = avctx->priv_data;
1194 VVCFrameContext *fc;
1195 int ret;
1196
1197
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 1378 if (!avpkt->size)
1198 312 return get_decoded_frame(s, output, got_output);
1199
1200 1066 fc = get_frame_context(s, s->fcs, s->nb_frames);
1201
1202 1066 fc->nb_slices = 0;
1203 1066 fc->decode_order = s->nb_frames;
1204
1205 1066 ret = decode_nal_units(s, fc, avpkt);
1206
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 1066 if (ret < 0)
1207 ✗ return ret;
1208
1209
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 1066 if (!fc->ft || !fc->ref)
1210 ✗ return avpkt->size;
1211
1212 1066 ret = submit_frame(s, fc, output, got_output);
1213
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 1066 if (ret < 0)
1214 ✗ return ret;
1215
1216 1066 return avpkt->size;
1217 }
1218
1219 94 static av_cold void vvc_decode_flush(AVCodecContext *avctx)
1220 {
1221 94 VVCContext *s = avctx->priv_data;
1222 94 int got_output = 0;
1223
1224
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 156 while (s->nb_delayed)
1225 62 wait_delayed_frame(s, NULL, &got_output);
1226
1227
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 94 if (s->fcs) {
1228 94 VVCFrameContext *last = get_frame_context(s, s->fcs, s->nb_frames - 1);
1229 94 ff_vvc_flush_dpb(last);
1230 }
1231
1232 94 s->ps.sps_id_used = 0;
1233
1234 94 s->eos = 1;
1235 94 }
1236
1237 94 static av_cold int vvc_decode_free(AVCodecContext *avctx)
1238 {
1239 94 VVCContext *s = avctx->priv_data;
1240
1241 94 ff_cbs_fragment_free(&s->current_frame);
1242 94 vvc_decode_flush(avctx);
1243 94 ff_vvc_executor_free(&s->executor);
1244
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 94 if (s->fcs) {
1245
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 846 for (int i = 0; i < s->nb_fcs; i++)
1246 752 frame_context_free(s->fcs + i);
1247 94 av_free(s->fcs);
1248 }
1249 94 ff_h274_hash_freep(&s->hash_ctx);
1250 94 ff_vvc_ps_uninit(&s->ps);
1251 94 ff_cbs_close(&s->cbc);
1252
1253 94 return 0;
1254 }
1255
1256 62 static av_cold void init_default_scale_m(void)
1257 {
1258 62 memset(&ff_vvc_default_scale_m, 16, sizeof(ff_vvc_default_scale_m));
1259 62 }
1260
1261 #define VVC_MAX_DELAYED_FRAMES 16
1262 94 static av_cold int vvc_decode_init(AVCodecContext *avctx)
1263 {
1264 94 VVCContext *s = avctx->priv_data;
1265 static AVOnce init_static_once = AV_ONCE_INIT;
1266 94 const int cpu_count = av_cpu_count();
1267 94 const int delayed = FFMIN(cpu_count, VVC_MAX_DELAYED_FRAMES);
1268
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 94 int thread_count = avctx->thread_count ? avctx->thread_count : delayed;
1269 int ret;
1270
1271 94 s->avctx = avctx;
1272
1273 94 ret = ff_cbs_init(&s->cbc, AV_CODEC_ID_VVC, avctx);
1274
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 94 if (ret)
1275 ✗ return ret;
1276
1277
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 94 if (avctx->extradata_size > 0 && avctx->extradata) {
1278 34 ret = ff_cbs_read_extradata_from_codec(s->cbc, &s->current_frame, avctx);
1279
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 34 if (ret < 0)
1280 ✗ return ret;
1281 }
1282
1283
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 94 s->nb_fcs = (avctx->flags & AV_CODEC_FLAG_LOW_DELAY) ? 1 : delayed;
1284 94 s->fcs = av_calloc(s->nb_fcs, sizeof(*s->fcs));
1285
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 94 if (!s->fcs)
1286 ✗ return AVERROR(ENOMEM);
1287
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 846 for (int i = 0; i < s->nb_fcs; i++) {
1289 752 VVCFrameContext *fc = s->fcs + i;
1290 752 ret = frame_context_init(fc, avctx);
1291
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 752 if (ret < 0)
1292 ✗ return ret;
1293 }
1294
1295
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 94 if (thread_count == 1)
1296 94 thread_count = 0;
1297 94 s->executor = ff_vvc_executor_alloc(s, thread_count);
1298
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 94 if (!s->executor)
1299 ✗ return AVERROR(ENOMEM);
1300
1301 94 s->eos = 1;
1302 94 GDR_SET_RECOVERED(s);
1303 94 ff_thread_once(&init_static_once, init_default_scale_m);
1304
1305 94 return 0;
1306 }
1307
1308 const FFCodec ff_vvc_decoder = {
1309 .p.name = "vvc",
1310 .p.long_name = NULL_IF_CONFIG_SMALL("VVC (Versatile Video Coding)"),
1311 .p.type = AVMEDIA_TYPE_VIDEO,
1312 .p.id = AV_CODEC_ID_VVC,
1313 .priv_data_size = sizeof(VVCContext),
1314 .init = vvc_decode_init,
1315 .close = vvc_decode_free,
1316 FF_CODEC_DECODE_CB(vvc_decode_frame),
1317 .flush = vvc_decode_flush,
1318 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY | AV_CODEC_CAP_OTHER_THREADS,
1319 .caps_internal = FF_CODEC_CAP_EXPORTS_CROPPING | FF_CODEC_CAP_INIT_CLEANUP |
1320 FF_CODEC_CAP_AUTO_THREADS,
1321 .p.profiles = NULL_IF_CONFIG_SMALL(ff_vvc_profiles),
1322 .hw_configs = (const AVCodecHWConfigInternal *const []) {
1323 #if CONFIG_VVC_VAAPI_HWACCEL
1324 HWACCEL_VAAPI(vvc),
1325 #endif
1326 NULL
1327 },
1328 };
1329