FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/vvc/dec.c
Date: 2026-04-22 18:56:46
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 31944 static void tl_init(TabList *l, const int zero, const int realloc)
68 {
69 31944 l->nb_tabs = 0;
70 31944 l->zero = zero;
71 31944 l->realloc = realloc;
72 31944 }
73
74 12396 static int tl_free(TabList *l)
75 {
76
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 87936 for (int i = 0; i < l->nb_tabs; i++)
77 75540 av_freep(l->tabs[i].tab);
78
79 12396 return 0;
80 }
81
82 11748 static int tl_create(TabList *l)
83 {
84
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 11748 if (l->realloc) {
85 3948 tl_free(l);
86
87
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 27768 for (int i = 0; i < l->nb_tabs; i++) {
88 23820 Tab *t = l->tabs + i;
89
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 23820 *t->tab = l->zero ? av_mallocz(t->size) : av_malloc(t->size);
90
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 23820 if (!*t->tab)
91 ✗ return AVERROR(ENOMEM);
92 }
93 }
94 11748 return 0;
95 }
96
97 11748 static int tl_zero(TabList *l)
98 {
99
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 11748 if (l->zero) {
100
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 23996 for (int i = 0; i < l->nb_tabs; i++) {
101 18531 Tab *t = l->tabs + i;
102 18531 memset(*t->tab, 0, t->size);
103 }
104 }
105 11748 return 0;
106 }
107
108 2904 static void ctu_nz_tl_init(TabList *l, VVCFrameContext *fc)
109 {
110 2904 const VVCSPS *sps = fc->ps.sps;
111 2904 const VVCPPS *pps = fc->ps.pps;
112
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 2904 const int ctu_size = sps ? (1 << sps->ctb_log2_size_y << sps->ctb_log2_size_y) : 0;
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 2904 const int ctu_count = pps ? pps->ctb_count : 0;
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 2904 const int changed = fc->tab.sz.ctu_count != ctu_count || fc->tab.sz.ctu_size != ctu_size;
115
116 2904 tl_init(l, 0, changed);
117
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 2904 TL_ADD(cus, ctu_count);
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 2904 TL_ADD(ctus, ctu_count);
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 2904 TL_ADD(deblock, ctu_count);
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 2904 TL_ADD(sao, ctu_count);
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 2904 TL_ADD(alf, ctu_count);
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 2904 TL_ADD(slice_idx, ctu_count);
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 2904 TL_ADD(coeffs, ctu_count * ctu_size * VVC_MAX_SAMPLE_ARRAYS);
125 2904 }
126
127 2904 static void min_cb_tl_init(TabList *l, VVCFrameContext *fc)
128 {
129 2904 const VVCPPS *pps = fc->ps.pps;
130
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 2904 const int pic_size_in_min_cb = pps ? pps->min_cb_width * pps->min_cb_height : 0;
131 2904 const int changed = fc->tab.sz.pic_size_in_min_cb != pic_size_in_min_cb;
132
133 2904 tl_init(l, 1, changed);
134
135
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 2904 TL_ADD(imf, pic_size_in_min_cb);
136
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 8712 for (int i = LUMA; i <= CHROMA; i++)
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 5808 TL_ADD(cb_width[i], pic_size_in_min_cb); //is_a0_available requires this
139 2904 }
140
141 2904 static void min_cb_nz_tl_init(TabList *l, VVCFrameContext *fc)
142 {
143 2904 const VVCPPS *pps = fc->ps.pps;
144
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 2904 const int pic_size_in_min_cb = pps ? pps->min_cb_width * pps->min_cb_height : 0;
145 2904 const int changed = fc->tab.sz.pic_size_in_min_cb != pic_size_in_min_cb;
146
147 2904 tl_init(l, 0, changed);
148
149
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 2904 TL_ADD(skip, pic_size_in_min_cb);
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 2904 TL_ADD(ipm, pic_size_in_min_cb);
151
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 8712 for (int i = LUMA; i <= CHROMA; i++) {
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 5808 TL_ADD(cqt_depth[i], pic_size_in_min_cb);
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 5808 TL_ADD(cb_pos_x[i], pic_size_in_min_cb);
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 5808 TL_ADD(cb_pos_y[i], pic_size_in_min_cb);
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 5808 TL_ADD(cb_height[i], pic_size_in_min_cb);
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 5808 TL_ADD(cp_mv[i], pic_size_in_min_cb * MAX_CONTROL_POINTS);
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 5808 TL_ADD(cpm[i], pic_size_in_min_cb);
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 5808 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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 2904 TL_ADD(qp[LUMA], pic_size_in_min_cb);
163 2904 }
164
165 2904 static void min_pu_tl_init(TabList *l, VVCFrameContext *fc)
166 {
167 2904 const VVCPPS *pps = fc->ps.pps;
168
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 2904 const int pic_size_in_min_pu = pps ? pps->min_pu_width * pps->min_pu_height : 0;
169 2904 const int changed = fc->tab.sz.pic_size_in_min_pu != pic_size_in_min_pu;
170
171 2904 tl_init(l, 1, changed);
172
173
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 2904 TL_ADD(iaf, pic_size_in_min_pu);
174 2904 }
175
176 2904 static void min_pu_nz_tl_init(TabList *l, VVCFrameContext *fc)
177 {
178 2904 const VVCPPS *pps = fc->ps.pps;
179
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 2904 const int pic_size_in_min_pu = pps ? pps->min_pu_width * pps->min_pu_height : 0;
180 2904 const int changed = fc->tab.sz.pic_size_in_min_pu != pic_size_in_min_pu;
181
182 2904 tl_init(l, 0, changed);
183
184
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 2904 TL_ADD(msf, pic_size_in_min_pu);
185
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 2904 TL_ADD(mmi, pic_size_in_min_pu);
186
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 2904 TL_ADD(mvf, pic_size_in_min_pu);
187 2904 }
188
189 2904 static void min_tu_tl_init(TabList *l, VVCFrameContext *fc)
190 {
191 2904 const VVCPPS *pps = fc->ps.pps;
192
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 2904 const int pic_size_in_min_tu = pps ? pps->min_tu_width * pps->min_tu_height : 0;
193 2904 const int changed = fc->tab.sz.pic_size_in_min_tu != pic_size_in_min_tu;
194
195 2904 tl_init(l, 1, changed);
196
197
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 2904 TL_ADD(tu_joint_cbcr_residual_flag, pic_size_in_min_tu);
198
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 11616 for (int i = 0; i < VVC_MAX_SAMPLE_ARRAYS; i++) {
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 8712 TL_ADD(tu_coded_flag[i], pic_size_in_min_tu);
201
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 26136 for (int vertical = 0; vertical < 2; vertical++)
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 17424 TL_ADD(bs[vertical][i], pic_size_in_min_tu);
204 }
205 2904 }
206
207 2904 static void min_tu_nz_tl_init(TabList *l, VVCFrameContext *fc)
208 {
209 2904 const VVCPPS *pps = fc->ps.pps;
210
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 2904 const int pic_size_in_min_tu = pps ? pps->min_tu_width * pps->min_tu_height : 0;
211 2904 const int changed = fc->tab.sz.pic_size_in_min_tu != pic_size_in_min_tu;
212
213 2904 tl_init(l, 0, changed);
214
215
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 8712 for (int i = LUMA; i <= CHROMA; i++) {
216
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 5808 TL_ADD(tb_width[i], pic_size_in_min_tu);
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 5808 TL_ADD(tb_height[i], pic_size_in_min_tu);
218 }
219
220
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 8712 for (int vertical = 0; vertical < 2; vertical++) {
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 5808 TL_ADD(max_len_p[vertical], pic_size_in_min_tu);
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 5808 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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 8712 for (int i = CB; i < VVC_MAX_SAMPLE_ARRAYS; i++)
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 5808 TL_ADD(qp[i], pic_size_in_min_tu);
228 2904 }
229
230 2904 static void pixel_buffer_nz_tl_init(TabList *l, VVCFrameContext *fc)
231 {
232 2904 const VVCSPS *sps = fc->ps.sps;
233 2904 const VVCPPS *pps = fc->ps.pps;
234
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 2904 const int width = pps ? pps->width : 0;
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 2904 const int height = pps ? pps->height : 0;
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 2904 const int ctu_width = pps ? pps->ctb_width : 0;
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 2904 const int ctu_height = pps ? pps->ctb_height : 0;
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 2904 const int chroma_idc = sps ? sps->r->sps_chroma_format_idc : 0;
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 2904 const int ps = sps ? sps->pixel_shift : 0;
240
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 2904 const int c_end = chroma_idc ? VVC_MAX_SAMPLE_ARRAYS : 1;
241 8434 const int changed = fc->tab.sz.chroma_format_idc != chroma_idc ||
242
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 2626 fc->tab.sz.width != width || fc->tab.sz.height != height ||
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 8146 fc->tab.sz.ctu_width != ctu_width || fc->tab.sz.ctu_height != ctu_height ||
244
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 2616 fc->tab.sz.pixel_shift != ps;
245
246 2904 tl_init(l, 0, changed);
247
248
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 10372 for (int c_idx = 0; c_idx < c_end; c_idx++) {
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 7468 const int w = width >> (sps ? sps->hshift[c_idx] : 0);
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 7468 const int h = height >> (sps ? sps->vshift[c_idx] : 0);
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 7468 TL_ADD(sao_pixel_buffer_h[c_idx], (w * 2 * ctu_height) << ps);
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 7468 TL_ADD(sao_pixel_buffer_v[c_idx], (h * 2 * ctu_width) << ps);
253 }
254
255
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 10372 for (int c_idx = 0; c_idx < c_end; c_idx++) {
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 7468 const int w = width >> (sps ? sps->hshift[c_idx] : 0);
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 7468 const int h = height >> (sps ? sps->vshift[c_idx] : 0);
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 7468 const int border_pixels = c_idx ? ALF_BORDER_CHROMA : ALF_BORDER_LUMA;
259
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 22404 for (int i = 0; i < 2; i++) {
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 14936 TL_ADD(alf_pixel_buffer_h[c_idx][i], (w * border_pixels * ctu_height) << ps);
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 14936 TL_ADD(alf_pixel_buffer_v[c_idx][i], h * ALF_PADDING_SIZE * ctu_width);
262 }
263 }
264 2904 }
265
266 2904 static void msm_tl_init(TabList *l, VVCFrameContext *fc)
267 {
268 2904 const VVCPPS *pps = fc->ps.pps;
269
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 2904 const int w32 = pps ? AV_CEIL_RSHIFT(pps->width, 5) : 0;
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 2904 const int h32 = pps ? AV_CEIL_RSHIFT(pps->height, 5) : 0;
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 5520 const int changed = AV_CEIL_RSHIFT(fc->tab.sz.width, 5) != w32 ||
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 2616 AV_CEIL_RSHIFT(fc->tab.sz.height, 5) != h32;
273
274 2904 tl_init(l, 1, changed);
275
276
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 8712 for (int i = LUMA; i <= CHROMA; i++)
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 5808 TL_ADD(msm[i], w32 * h32);
278 2904 }
279
280 2904 static void ispmf_tl_init(TabList *l, VVCFrameContext *fc)
281 {
282 2904 const VVCPPS *pps = fc->ps.pps;
283
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 2904 const int w64 = pps ? AV_CEIL_RSHIFT(pps->width, 6) : 0;
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 2904 const int h64 = pps ? AV_CEIL_RSHIFT(pps->height, 6) : 0;
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 5520 const int changed = AV_CEIL_RSHIFT(fc->tab.sz.width, 6) != w64 ||
286
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 2616 AV_CEIL_RSHIFT(fc->tab.sz.height, 6) != h64;
287
288 2904 tl_init(l, 1, changed);
289
290
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 2904 TL_ADD(ispmf, w64 * h64);
291 2904 }
292
293 2904 static void ibc_tl_init(TabList *l, VVCFrameContext *fc)
294 {
295 2904 const VVCSPS *sps = fc->ps.sps;
296 2904 const VVCPPS *pps = fc->ps.pps;
297
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 2904 const int ctu_height = pps ? pps->ctb_height : 0;
298
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 2904 const int ctu_size = sps ? sps->ctb_size_y : 0;
299
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 2904 const int ps = sps ? sps->pixel_shift : 0;
300
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 2904 const int chroma_idc = sps ? sps->r->sps_chroma_format_idc : 0;
301
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 2904 const int has_ibc = sps ? sps->r->sps_ibc_enabled_flag : 0;
302 8434 const int changed = fc->tab.sz.chroma_format_idc != chroma_idc ||
303
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 2626 fc->tab.sz.ctu_height != ctu_height ||
304
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 6010 fc->tab.sz.ctu_size != ctu_size ||
305
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 480 fc->tab.sz.pixel_shift != ps;
306
307
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 2904 fc->tab.sz.ibc_buffer_width = ctu_size ? 2 * MAX_CTU_SIZE * MAX_CTU_SIZE / ctu_size : 0;
308
309 2904 tl_init(l, has_ibc, changed);
310
311
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 11616 for (int i = LUMA; i < VVC_MAX_SAMPLE_ARRAYS; i++) {
312
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 8712 const int hs = sps ? sps->hshift[i] : 0;
313
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 8712 const int vs = sps ? sps->vshift[i] : 0;
314
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 8712 TL_ADD(ibc_vir_buf[i], fc->tab.sz.ibc_buffer_width * ctu_size * ctu_height << ps >> hs >> vs);
315 }
316 2904 }
317
318 typedef void (*tl_init_fn)(TabList *l, VVCFrameContext *fc);
319
320 2904 static int frame_context_for_each_tl(VVCFrameContext *fc, int (*unary_fn)(TabList *l))
321 {
322 2904 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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 34848 for (int i = 0; i < FF_ARRAY_ELEMS(init); i++) {
337 TabList l;
338 int ret;
339
340 31944 init[i](&l, fc);
341 31944 ret = unary_fn(&l);
342
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 31944 if (ret < 0)
343 ✗ return ret;
344 }
345 2904 return 0;
346 }
347
348 1836 static void free_cus(VVCFrameContext *fc)
349 {
350
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 1836 if (fc->tab.cus) {
351
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 54813 for (int i = 0; i < fc->tab.sz.ctu_count; i++)
352 53745 ff_vvc_ctu_free_cus(fc->tab.cus + i);
353 }
354 1836 }
355
356 768 static void pic_arrays_free(VVCFrameContext *fc)
357 {
358 768 free_cus(fc);
359 768 frame_context_for_each_tl(fc, tl_free);
360 768 av_refstruct_pool_uninit(&fc->rpl_tab_pool);
361 768 av_refstruct_pool_uninit(&fc->tab_dmvr_mvf_pool);
362
363 768 memset(&fc->tab.sz, 0, sizeof(fc->tab.sz));
364 768 }
365
366 1068 static int pic_arrays_init(VVCContext *s, VVCFrameContext *fc)
367 {
368 1068 const VVCSPS *sps = fc->ps.sps;
369 1068 const VVCPPS *pps = fc->ps.pps;
370 1068 const int ctu_count = pps->ctb_count;
371 1068 const int pic_size_in_min_pu = pps->min_pu_width * pps->min_pu_height;
372 int ret;
373
374 1068 free_cus(fc);
375
376 1068 ret = frame_context_for_each_tl(fc, tl_create);
377
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 1068 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 1068 memset(fc->tab.cus, 0, sizeof(*fc->tab.cus) * ctu_count);
382
383 1068 memset(fc->tab.slice_idx, -1, sizeof(*fc->tab.slice_idx) * ctu_count);
384
385
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 1068 if (fc->tab.sz.ctu_count != ctu_count) {
386 288 av_refstruct_pool_uninit(&fc->rpl_tab_pool);
387 288 fc->rpl_tab_pool = av_refstruct_pool_alloc(ctu_count * sizeof(RefPicListTab), 0);
388
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 288 if (!fc->rpl_tab_pool)
389 ✗ return AVERROR(ENOMEM);
390 }
391
392
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 1068 if (fc->tab.sz.pic_size_in_min_pu != pic_size_in_min_pu) {
393 288 av_refstruct_pool_uninit(&fc->tab_dmvr_mvf_pool);
394 288 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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 288 if (!fc->tab_dmvr_mvf_pool)
397 ✗ return AVERROR(ENOMEM);
398 }
399
400 1068 fc->tab.sz.ctu_count = pps->ctb_count;
401 1068 fc->tab.sz.ctu_size = 1 << sps->ctb_log2_size_y << sps->ctb_log2_size_y;
402 1068 fc->tab.sz.pic_size_in_min_cb = pps->min_cb_width * pps->min_cb_height;
403 1068 fc->tab.sz.pic_size_in_min_pu = pic_size_in_min_pu;
404 1068 fc->tab.sz.pic_size_in_min_tu = pps->min_tu_width * pps->min_tu_height;
405 1068 fc->tab.sz.width = pps->width;
406 1068 fc->tab.sz.height = pps->height;
407 1068 fc->tab.sz.ctu_width = pps->ctb_width;
408 1068 fc->tab.sz.ctu_height = pps->ctb_height;
409 1068 fc->tab.sz.chroma_format_idc = sps->r->sps_chroma_format_idc;
410 1068 fc->tab.sz.pixel_shift = sps->pixel_shift;
411
412 1068 return 0;
413 }
414
415 1068 int ff_vvc_per_frame_init(VVCFrameContext *fc)
416 {
417 1068 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 1541 static void eps_free(SliceContext *slice)
465 {
466 1541 av_freep(&slice->eps);
467 1541 slice->nb_eps = 0;
468 1541 }
469
470 768 static void slices_free(VVCFrameContext *fc)
471 {
472
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 768 if (fc->slices) {
473
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 1108 for (int i = 0; i < fc->nb_slices_allocated; i++) {
474 820 SliceContext *slice = fc->slices[i];
475
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 820 if (slice) {
476 820 av_refstruct_unref(&slice->ref);
477 820 av_refstruct_unref(&slice->sh.r);
478 820 eps_free(slice);
479 820 av_free(slice);
480 }
481 }
482 288 av_freep(&fc->slices);
483 }
484 768 fc->nb_slices_allocated = 0;
485 768 fc->nb_slices = 0;
486 768 }
487
488 1833 static int slices_realloc(VVCFrameContext *fc)
489 {
490 void *p;
491 1833 const int size = (fc->nb_slices_allocated + 1) * 3 / 2;
492
493
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 1833 if (fc->nb_slices < fc->nb_slices_allocated)
494 1435 return 0;
495
496 398 p = av_realloc_array(fc->slices, size, sizeof(*fc->slices));
497
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 398 if (!p)
498 ✗ return AVERROR(ENOMEM);
499
500 398 fc->slices = p;
501
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 1218 for (int i = fc->nb_slices_allocated; i < size; i++) {
502 820 fc->slices[i] = av_mallocz(sizeof(*fc->slices[0]));
503
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 820 if (!fc->slices[i]) {
504 ✗ fc->nb_slices_allocated = i;
505 ✗ return AVERROR(ENOMEM);
506 }
507 820 fc->slices[i]->slice_idx = i;
508 }
509 398 fc->nb_slices_allocated = size;
510
511 398 return 0;
512 }
513
514 2206 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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 2206 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 1833 size = bytestream2_get_bytes_left(gb);
534 }
535 2206 return size;
536 }
537
538 2206 static int ep_init_cabac_decoder(EntryPoint *ep, GetByteContext *gb, const int size)
539 {
540 int ret;
541
542
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 2206 av_assert0(size <= bytestream2_get_bytes_left(gb));
543 2206 ret = ff_init_cabac_decoder(&ep->cc, gb->buffer, size);
544
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 2206 if (ret < 0)
545 ✗ return ret;
546 2206 bytestream2_skipu(gb, size);
547 2206 return 0;
548 }
549
550 2206 static int ep_init(EntryPoint *ep, const int ctu_addr, const int ctu_end,
551 GetByteContext *gb, const int size)
552 {
553 2206 const int ret = ep_init_cabac_decoder(ep, gb, size);
554
555
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 2206 if (ret < 0)
556 ✗ return ret;
557
558 2206 ep->ctu_start = ctu_addr;
559 2206 ep->ctu_end = ctu_end;
560
561
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 8824 for (int c_idx = LUMA; c_idx <= CR; c_idx++)
562 6618 ep->pp[c_idx].size = 0;
563
564 2206 return 0;
565 }
566
567 1833 static int slice_init_entry_points(SliceContext *sc,
568 VVCFrameContext *fc, const H2645NAL *nal, const CodedBitstreamUnit *unit)
569 {
570 1833 const VVCSH *sh = &sc->sh;
571 1833 const H266RawSlice *slice = unit->content_ref;
572 1833 int nb_eps = sh->r->num_entry_points + 1;
573 1833 int ctu_addr = 0;
574 GetByteContext gb;
575 int ret;
576
577
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 1833 if (sc->nb_eps != nb_eps) {
578 721 eps_free(sc);
579 721 sc->eps = av_calloc(nb_eps, sizeof(*sc->eps));
580
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 721 if (!sc->eps)
581 ✗ return AVERROR(ENOMEM);
582 721 sc->nb_eps = nb_eps;
583 }
584
585 1833 bytestream2_init(&gb, slice->data, slice->data_size);
586
587
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 4039 for (int i = 0; i < sc->nb_eps; i++)
588 {
589 2206 const int size = get_ep_size(sc->sh.r, &gb, nal, slice->header_size, i);
590
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 2206 const int ctu_end = (i + 1 == sc->nb_eps ? sh->num_ctus_in_curr_slice : sh->entry_point_start_ctu[i]);
591 2206 EntryPoint *ep = sc->eps + i;
592
593 2206 ret = ep_init(ep, ctu_addr, ctu_end, &gb, size);
594
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 2206 if (ret < 0)
595 ✗ return ret;
596
597
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 55951 for (int j = ep->ctu_start; j < ep->ctu_end; j++) {
598 53745 const int rs = sc->sh.ctb_addr_in_curr_slice[j];
599 53745 fc->tab.slice_idx[rs] = sc->slice_idx;
600 }
601
602
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 2206 if (i + 1 < sc->nb_eps)
603 373 ctu_addr = sh->entry_point_start_ctu[i];
604 }
605
606 1833 return 0;
607 }
608
609 3335 static VVCFrameContext* get_frame_context(const VVCContext *s, const VVCFrameContext *fc, const int delta)
610 {
611 3335 const int size = s->nb_fcs;
612 3335 const int idx = (fc - s->fcs + delta + size) % size;
613 3335 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
658 768 static av_cold void frame_context_free(VVCFrameContext *fc)
659 {
660 768 slices_free(fc);
661
662 768 av_refstruct_pool_uninit(&fc->tu_pool);
663 768 av_refstruct_pool_uninit(&fc->cu_pool);
664
665
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 13824 for (int i = 0; i < FF_ARRAY_ELEMS(fc->DPB); i++) {
666 13056 ff_vvc_unref_frame(fc, &fc->DPB[i], ~0);
667 13056 av_frame_free(&fc->DPB[i].frame);
668 13056 av_frame_free(&fc->DPB[i].frame_grain);
669 }
670
671 768 ff_vvc_frame_thread_free(fc);
672 768 pic_arrays_free(fc);
673 768 av_frame_free(&fc->output_frame);
674 768 ff_vvc_frame_ps_free(&fc->ps);
675 768 ff_vvc_sei_reset(&fc->sei);
676 768 }
677
678 768 static av_cold int frame_context_init(VVCFrameContext *fc, AVCodecContext *avctx)
679 {
680
681 768 fc->log_ctx = avctx;
682
683 768 fc->output_frame = av_frame_alloc();
684
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 768 if (!fc->output_frame)
685 ✗ return AVERROR(ENOMEM);
686
687
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 13824 for (int j = 0; j < FF_ARRAY_ELEMS(fc->DPB); j++) {
688 13056 fc->DPB[j].frame = av_frame_alloc();
689
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 13056 if (!fc->DPB[j].frame)
690 ✗ return AVERROR(ENOMEM);
691
692 13056 fc->DPB[j].frame_grain = av_frame_alloc();
693
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 13056 if (!fc->DPB[j].frame_grain)
694 ✗ return AVERROR(ENOMEM);
695 }
696 768 fc->cu_pool = av_refstruct_pool_alloc(sizeof(CodingUnit), 0);
697
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 768 if (!fc->cu_pool)
698 ✗ return AVERROR(ENOMEM);
699
700 768 fc->tu_pool = av_refstruct_pool_alloc(sizeof(TransformUnit), 0);
701
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 768 if (!fc->tu_pool)
702 ✗ return AVERROR(ENOMEM);
703
704 768 return 0;
705 }
706
707 1068 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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 1068 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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 1068 if (IS_IDR(s)) {
729 105 ff_vvc_clear_refs(fc);
730 }
731
732 1068 ret = pic_arrays_init(s, fc);
733
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 1068 if (ret < 0)
734 ✗ return ret;
735 1068 ff_vvc_dsp_init(&fc->vvcdsp, fc->ps.sps->bit_depth);
736 1068 ff_videodsp_init(&fc->vdsp, fc->ps.sps->bit_depth);
737 1068 return 0;
738 }
739
740 /* SEI does not affect decoding, so we ignore the return value */
741 1068 static void decode_prefix_sei(VVCFrameContext *fc, VVCContext *s)
742 {
743 1068 CodedBitstreamFragment *frame = &s->current_frame;
744
745
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 4997 for (int i = 0; i < frame->nb_units; i++) {
746 3929 const CodedBitstreamUnit *unit = frame->units + i;
747
748
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 3929 if (unit->type == VVC_PREFIX_SEI_NUT) {
749 90 int ret = ff_vvc_sei_decode(&fc->sei, unit->content_ref, fc);
750
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 90 if (ret < 0)
751 ✗ return;
752 }
753 }
754 }
755
756 1068 static int set_side_data(VVCContext *s, VVCFrameContext *fc)
757 {
758 1068 AVFrame *out = fc->ref->frame;
759
760 2136 return ff_h2645_sei_to_frame(out, &fc->sei.common, AV_CODEC_ID_VVC, s->avctx,
761 1068 NULL, fc->ps.sps->bit_depth, fc->ps.sps->bit_depth, fc->ref->poc);
762 }
763
764 1068 static int check_film_grain(VVCContext *s, VVCFrameContext *fc)
765 {
766 int ret;
767
768 2136 fc->ref->needs_fg = (fc->sei.common.film_grain_characteristics &&
769 ✗ fc->sei.common.film_grain_characteristics->present ||
770
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 1068 fc->sei.common.aom_film_grain.enable) &&
771
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 2136 !(s->avctx->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN) &&
772 ✗ !s->avctx->hwaccel;
773
774
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 1068 if (fc->ref->needs_fg &&
775 ✗ (fc->sei.common.film_grain_characteristics &&
776 ✗ fc->sei.common.film_grain_characteristics->present &&
777 ✗ !ff_h274_film_grain_params_supported(fc->sei.common.film_grain_characteristics->model_id,
778 ✗ fc->ref->frame->format) ||
779 ✗ !av_film_grain_params_select(fc->ref->frame))) {
780 ✗ av_log_once(s->avctx, AV_LOG_WARNING, AV_LOG_DEBUG, &s->film_grain_warning_shown,
781 "Unsupported film grain parameters. Ignoring film grain.\n");
782 ✗ fc->ref->needs_fg = 0;
783 }
784
785
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 1068 if (fc->ref->needs_fg) {
786 ✗ fc->ref->frame_grain->format = fc->ref->frame->format;
787 ✗ fc->ref->frame_grain->width = fc->ref->frame->width;
788 ✗ fc->ref->frame_grain->height = fc->ref->frame->height;
789
790 ✗ ret = ff_thread_get_buffer(s->avctx, fc->ref->frame_grain, 0);
791 ✗ if (ret < 0)
792 ✗ return ret;
793
794 ✗ return av_frame_copy_props(fc->ref->frame_grain, fc->ref->frame);
795 }
796
797 1068 return 0;
798 }
799
800 1068 static int frame_start(VVCContext *s, VVCFrameContext *fc, SliceContext *sc)
801 {
802 1068 const VVCPH *ph = &fc->ps.ph;
803 1068 const H266RawSliceHeader *rsh = sc->sh.r;
804 int ret;
805
806 // 8.3.1 Decoding process for picture order count
807
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 1068 if (!s->temporal_id && !ph->r->ph_non_ref_pic_flag && !(IS_RASL(s) || IS_RADL(s)))
808 223 s->poc_tid0 = ph->poc;
809
810 1068 decode_prefix_sei(fc, s);
811
812
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 1068 if ((ret = ff_vvc_set_new_ref(s, fc, &fc->frame)) < 0)
813 ✗ goto fail;
814
815 1068 ret = set_side_data(s, fc);
816
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 1068 if (ret < 0)
817 ✗ goto fail;
818
819 1068 ret = check_film_grain(s, fc);
820
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 1068 if (ret < 0)
821 ✗ goto fail;
822
823
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 1068 if (!IS_IDR(s))
824 963 ff_vvc_bump_frame(s, fc);
825
826 1068 av_frame_unref(fc->output_frame);
827
828
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 1068 if ((ret = ff_vvc_output_frame(s, fc, fc->output_frame,rsh->sh_no_output_of_prior_pics_flag, 0)) < 0)
829 ✗ goto fail;
830
831
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 1068 if ((ret = ff_vvc_frame_rpl(s, fc, sc)) < 0)
832 ✗ goto fail;
833
834
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 1068 if ((ret = ff_vvc_frame_thread_init(fc)) < 0)
835 ✗ goto fail;
836 1068 return 0;
837 ✗ fail:
838 ✗ if (fc->ref)
839 ✗ ff_vvc_unref_frame(fc, fc->ref, ~0);
840 ✗ fc->ref = NULL;
841 ✗ return ret;
842 }
843
844 1833 static int slice_start(SliceContext *sc, VVCContext *s, VVCFrameContext *fc,
845 const CodedBitstreamUnit *unit, const int is_first_slice)
846 {
847 1833 VVCSH *sh = &sc->sh;
848 int ret;
849
850 1833 ret = ff_vvc_decode_sh(sh, &fc->ps, unit);
851
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 1833 if (ret < 0)
852 ✗ return ret;
853
854
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 1833 if (is_first_slice) {
855 1068 ret = frame_start(s, fc, sc);
856
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 1068 if (ret < 0)
857 ✗ return ret;
858
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 765 } else if (fc->ref) {
859
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 765 if (!IS_I(sh->r)) {
860 599 ret = ff_vvc_slice_rpl(s, fc, sc);
861
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 599 if (ret < 0) {
862 ✗ av_log(fc->log_ctx, AV_LOG_WARNING,
863 "Error constructing the reference lists for the current slice.\n");
864 ✗ return ret;
865 }
866 }
867 } else {
868 ✗ av_log(fc->log_ctx, AV_LOG_ERROR, "First slice in a frame missing.\n");
869 ✗ return ret;
870 }
871
872
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 1833 if (!IS_I(sh->r))
873 1547 smvd_ref_idx(fc, sc);
874
875 1833 return 0;
876 }
877
878 97 static enum AVPixelFormat get_format(AVCodecContext *avctx, const VVCSPS *sps)
879 {
880 #define HWACCEL_MAX CONFIG_VVC_VAAPI_HWACCEL
881
882 97 enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmt = pix_fmts;
883
884
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 97 switch (sps->pix_fmt) {
885 5 case AV_PIX_FMT_YUV420P:
886 #if CONFIG_VVC_VAAPI_HWACCEL
887 5 *fmt++ = AV_PIX_FMT_VAAPI;
888 #endif
889 5 break;
890 80 case AV_PIX_FMT_YUV420P10:
891 #if CONFIG_VVC_VAAPI_HWACCEL
892 80 *fmt++ = AV_PIX_FMT_VAAPI;
893 #endif
894 80 break;
895 }
896
897 97 *fmt++ = sps->pix_fmt;
898 97 *fmt = AV_PIX_FMT_NONE;
899
900 97 return ff_get_format(avctx, pix_fmts);
901 }
902
903 1068 static int export_frame_params(VVCContext *s, const VVCFrameContext *fc)
904 {
905 1068 AVCodecContext *c = s->avctx;
906 1068 const VVCSPS *sps = fc->ps.sps;
907 1068 const VVCPPS *pps = fc->ps.pps;
908
909 // Reset the format if pix_fmt/w/h change.
910
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 1068 if (c->sw_pix_fmt != sps->pix_fmt || c->coded_width != pps->width || c->coded_height != pps->height) {
911 97 c->coded_width = pps->width;
912 97 c->coded_height = pps->height;
913 97 c->sw_pix_fmt = sps->pix_fmt;
914 97 c->pix_fmt = get_format(c, sps);
915
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 97 if (c->pix_fmt < 0)
916 ✗ return AVERROR_INVALIDDATA;
917 }
918
919 1068 c->width = pps->width - ((pps->r->pps_conf_win_left_offset + pps->r->pps_conf_win_right_offset) << sps->hshift[CHROMA]);
920 1068 c->height = pps->height - ((pps->r->pps_conf_win_top_offset + pps->r->pps_conf_win_bottom_offset) << sps->vshift[CHROMA]);
921
922 1068 return 0;
923 }
924
925 1068 static int frame_setup(VVCFrameContext *fc, VVCContext *s)
926 {
927 1068 int ret = ff_vvc_decode_frame_ps(fc, s);
928
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 1068 if (ret < 0)
929 ✗ return ret;
930
931 1068 ret = frame_context_setup(fc, s);
932
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 1068 if (ret < 0)
933 ✗ return ret;
934
935 1068 ret = export_frame_params(s, fc);
936
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 1068 if (ret < 0)
937 ✗ return ret;
938
939 1068 return 0;
940 }
941
942 1833 static int decode_slice(VVCContext *s, VVCFrameContext *fc, AVBufferRef *buf_ref,
943 const H2645NAL *nal, const CodedBitstreamUnit *unit)
944 {
945 int ret;
946 SliceContext *sc;
947 1833 const int is_first_slice = !fc->nb_slices;
948
949 1833 ret = slices_realloc(fc);
950
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 1833 if (ret < 0)
951 ✗ return ret;
952
953 1833 sc = fc->slices[fc->nb_slices];
954 1833 av_refstruct_replace(&sc->ref, unit->content_ref);
955
956 1833 s->vcl_unit_type = nal->type;
957
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 1833 if (is_first_slice) {
958 1068 ret = frame_setup(fc, s);
959
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 1068 if (ret < 0)
960 ✗ return ret;
961 }
962
963 1833 ret = slice_start(sc, s, fc, unit, is_first_slice);
964
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 1833 if (ret < 0)
965 ✗ return ret;
966
967 1833 ret = slice_init_entry_points(sc, fc, nal, unit);
968
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 1833 if (ret < 0)
969 ✗ return ret;
970
971
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 1833 if (s->avctx->hwaccel) {
972 ✗ if (is_first_slice) {
973 ✗ ret = FF_HW_CALL(s->avctx, start_frame, buf_ref, NULL, 0);
974 ✗ if (ret < 0)
975 ✗ return ret;
976 }
977
978 ✗ ret = FF_HW_CALL(s->avctx, decode_slice,
979 nal->raw_data, nal->raw_size);
980 ✗ if (ret < 0)
981 ✗ return ret;
982 }
983
984 1833 fc->nb_slices++;
985
986 1833 return 0;
987 }
988
989 3929 static int decode_nal_unit(VVCContext *s, VVCFrameContext *fc, AVBufferRef *buf_ref,
990 const H2645NAL *nal, const CodedBitstreamUnit *unit)
991 {
992 int ret;
993
994 3929 s->temporal_id = nal->temporal_id;
995
996
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 3929 if (nal->nuh_layer_id > 0) {
997 ✗ avpriv_report_missing_feature(fc->log_ctx,
998 "Decoding of multilayer bitstreams");
999 ✗ return AVERROR_PATCHWELCOME;
1000 }
1001
1002
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 3929 switch (unit->type) {
1003 460 case VVC_VPS_NUT:
1004 case VVC_SPS_NUT:
1005 case VVC_PPS_NUT:
1006 /* vps, sps, sps cached by s->cbc */
1007 460 break;
1008 1833 case VVC_TRAIL_NUT:
1009 case VVC_STSA_NUT:
1010 case VVC_RADL_NUT:
1011 case VVC_RASL_NUT:
1012 case VVC_IDR_W_RADL:
1013 case VVC_IDR_N_LP:
1014 case VVC_CRA_NUT:
1015 case VVC_GDR_NUT:
1016 1833 ret = decode_slice(s, fc, buf_ref, nal, unit);
1017
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 1833 if (ret < 0)
1018 ✗ return ret;
1019 1833 break;
1020 431 case VVC_PREFIX_APS_NUT:
1021 case VVC_SUFFIX_APS_NUT:
1022 431 ret = ff_vvc_decode_aps(&s->ps, unit);
1023
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 431 if (ret < 0)
1024 ✗ return ret;
1025 431 break;
1026 90 case VVC_PREFIX_SEI_NUT:
1027 /* handle by decode_prefix_sei() */
1028 90 break;
1029
1030 1010 case VVC_SUFFIX_SEI_NUT:
1031 /* SEI does not affect decoding, so we ignore the return value*/
1032
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 1010 if (fc)
1033 1010 ff_vvc_sei_decode(&fc->sei, unit->content_ref, fc);
1034 1010 break;
1035 }
1036
1037 3929 return 0;
1038 }
1039
1040 1068 static int decode_nal_units(VVCContext *s, VVCFrameContext *fc, AVPacket *avpkt)
1041 {
1042 1068 const CodedBitstreamH266Context *h266 = s->cbc->priv_data;
1043 1068 CodedBitstreamFragment *frame = &s->current_frame;
1044 1068 int ret = 0;
1045 1068 s->last_eos = s->eos;
1046 1068 s->eos = 0;
1047 1068 fc->ref = NULL;
1048
1049 1068 ff_cbs_fragment_reset(frame);
1050 1068 ret = ff_cbs_read_packet(s->cbc, frame, avpkt);
1051
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 1068 if (ret < 0) {
1052 ✗ av_log(s->avctx, AV_LOG_ERROR, "Failed to read packet.\n");
1053 ✗ return ret;
1054 }
1055 /* decode the NAL units */
1056
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 4997 for (int i = 0; i < frame->nb_units; i++) {
1057 3929 const H2645NAL *nal = h266->common.read_packet.nals + i;
1058 3929 const CodedBitstreamUnit *unit = frame->units + i;
1059
1060
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 3929 if (unit->type == VVC_EOB_NUT || unit->type == VVC_EOS_NUT) {
1061 ✗ s->last_eos = 1;
1062 } else {
1063 3929 ret = decode_nal_unit(s, fc, avpkt->buf, nal, unit);
1064
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 3929 if (ret < 0) {
1065 ✗ av_log(s->avctx, AV_LOG_WARNING,
1066 "Error parsing NAL unit #%d.\n", i);
1067 ✗ goto fail;
1068 }
1069 }
1070 }
1071 1068 return 0;
1072
1073 ✗ fail:
1074 ✗ if (fc->ref)
1075 ✗ ff_vvc_report_frame_finished(fc->ref);
1076 ✗ return ret;
1077 }
1078
1079 1068 static int frame_end(VVCContext *s, VVCFrameContext *fc)
1080 {
1081 const AVFilmGrainParams *fgp;
1082 int ret;
1083
1084
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 1068 if (fc->ref->needs_fg) {
1085 ✗ av_assert0(fc->ref->frame_grain->buf[0]);
1086 ✗ fgp = av_film_grain_params_select(fc->ref->frame);
1087 ✗ switch (fgp->type) {
1088 ✗ case AV_FILM_GRAIN_PARAMS_NONE:
1089 ✗ av_assert0(0);
1090 return AVERROR_BUG;
1091 ✗ case AV_FILM_GRAIN_PARAMS_H274:
1092 ✗ ret = ff_h274_apply_film_grain(fc->ref->frame_grain, fc->ref->frame, fgp);
1093 ✗ if (ret < 0)
1094 ✗ return ret;
1095 ✗ break;
1096 ✗ case AV_FILM_GRAIN_PARAMS_AV1:
1097 ✗ ret = ff_aom_apply_film_grain(fc->ref->frame_grain, fc->ref->frame, fgp);
1098 ✗ if (ret < 0)
1099 ✗ return ret;
1100 ✗ break;
1101 }
1102 }
1103
1104
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 1068 if (!s->avctx->hwaccel && s->avctx->err_recognition & AV_EF_CRCCHECK) {
1105 ✗ VVCSEI *sei = &fc->sei;
1106 ✗ if (sei->picture_hash.present) {
1107 ✗ ret = ff_h274_hash_init(&s->hash_ctx, sei->picture_hash.hash_type);
1108 ✗ if (ret < 0)
1109 ✗ return ret;
1110
1111 ✗ ret = ff_h274_hash_verify(s->hash_ctx, &sei->picture_hash, fc->ref->frame, fc->ps.pps->width, fc->ps.pps->height);
1112 ✗ av_log(s->avctx, ret < 0 ? AV_LOG_ERROR : AV_LOG_DEBUG,
1113 "Verifying checksum for frame with decode_order %d: %s\n",
1114 ✗ (int)fc->decode_order, ret < 0 ? "incorrect": "correct");
1115 ✗ if (ret < 0 && (s->avctx->err_recognition & AV_EF_EXPLODE))
1116 ✗ return ret;
1117 }
1118 }
1119
1120 1068 return 0;
1121 }
1122
1123 1068 static int wait_delayed_frame(VVCContext *s, AVFrame *output, int *got_output)
1124 {
1125 1068 VVCFrameContext *delayed = get_frame_context(s, s->fcs, s->nb_frames - s->nb_delayed);
1126 1068 int ret = ff_vvc_frame_wait(s, delayed);
1127
1128
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 1068 if (!ret) {
1129 1068 ret = frame_end(s, delayed);
1130
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 1068 if (ret >= 0 && delayed->output_frame->buf[0] && output) {
1131 890 av_frame_move_ref(output, delayed->output_frame);
1132 890 *got_output = 1;
1133 }
1134 }
1135 1068 s->nb_delayed--;
1136
1137 1068 return ret;
1138 }
1139
1140 1068 static int submit_frame(VVCContext *s, VVCFrameContext *fc, AVFrame *output, int *got_output)
1141 {
1142 int ret;
1143
1144
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 1068 if (s->avctx->hwaccel) {
1145 ✗ if (ret = FF_HW_SIMPLE_CALL(s->avctx, end_frame) < 0) {
1146 ✗ av_log(s->avctx, AV_LOG_ERROR,
1147 "Hardware accelerator failed to decode picture\n");
1148 ✗ ff_vvc_unref_frame(fc, fc->ref, ~0);
1149 ✗ return ret;
1150 }
1151 } else {
1152
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 1068 if (ret = ff_vvc_frame_submit(s, fc) < 0) {
1153 ✗ ff_vvc_report_frame_finished(fc->ref);
1154 ✗ return ret;
1155 }
1156 }
1157
1158 1068 s->nb_frames++;
1159 1068 s->nb_delayed++;
1160
1161
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 1068 if (s->nb_delayed >= s->nb_fcs || s->avctx->hwaccel) {
1162
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 805 if ((ret = wait_delayed_frame(s, output, got_output)) < 0)
1163 ✗ return ret;
1164 }
1165 1068 return 0;
1166 }
1167
1168 312 static int get_decoded_frame(VVCContext *s, AVFrame *output, int *got_output)
1169 {
1170 int ret;
1171
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 330 while (s->nb_delayed) {
1172
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 199 if ((ret = wait_delayed_frame(s, output, got_output)) < 0)
1173 ✗ return ret;
1174
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 199 if (*got_output)
1175 181 return 0;
1176 }
1177
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 131 if (s->nb_frames) {
1178 //we still have frames cached in dpb.
1179 131 VVCFrameContext *last = get_frame_context(s, s->fcs, s->nb_frames - 1);
1180
1181 131 ret = ff_vvc_output_frame(s, last, output, 0, 1);
1182
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 131 if (ret < 0)
1183 ✗ return ret;
1184 131 *got_output = ret;
1185 }
1186 131 return 0;
1187 }
1188
1189 1380 static int vvc_decode_frame(AVCodecContext *avctx, AVFrame *output,
1190 int *got_output, AVPacket *avpkt)
1191 {
1192 1380 VVCContext *s = avctx->priv_data;
1193 VVCFrameContext *fc;
1194 int ret;
1195
1196
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 1380 if (!avpkt->size)
1197 312 return get_decoded_frame(s, output, got_output);
1198
1199 1068 fc = get_frame_context(s, s->fcs, s->nb_frames);
1200
1201 1068 fc->nb_slices = 0;
1202 1068 fc->decode_order = s->nb_frames;
1203
1204 1068 ret = decode_nal_units(s, fc, avpkt);
1205
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 1068 if (ret < 0)
1206 ✗ return ret;
1207
1208
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 1068 if (!fc->ft || !fc->ref)
1209 ✗ return avpkt->size;
1210
1211 1068 ret = submit_frame(s, fc, output, got_output);
1212
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 1068 if (ret < 0)
1213 ✗ return ret;
1214
1215 1068 return avpkt->size;
1216 }
1217
1218 96 static av_cold void vvc_decode_flush(AVCodecContext *avctx)
1219 {
1220 96 VVCContext *s = avctx->priv_data;
1221 96 int got_output = 0;
1222
1223
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 160 while (s->nb_delayed)
1224 64 wait_delayed_frame(s, NULL, &got_output);
1225
1226
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 96 if (s->fcs) {
1227 96 VVCFrameContext *last = get_frame_context(s, s->fcs, s->nb_frames - 1);
1228 96 ff_vvc_sei_reset(&last->sei);
1229 96 ff_vvc_flush_dpb(last);
1230 }
1231
1232 96 s->ps.sps_id_used = 0;
1233
1234 96 s->eos = 1;
1235 96 }
1236
1237 96 static av_cold int vvc_decode_free(AVCodecContext *avctx)
1238 {
1239 96 VVCContext *s = avctx->priv_data;
1240
1241 96 ff_cbs_fragment_free(&s->current_frame);
1242 96 vvc_decode_flush(avctx);
1243 96 ff_vvc_executor_free(&s->executor);
1244
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 96 if (s->fcs) {
1245
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 864 for (int i = 0; i < s->nb_fcs; i++)
1246 768 frame_context_free(s->fcs + i);
1247 96 av_free(s->fcs);
1248 }
1249 96 ff_h274_hash_freep(&s->hash_ctx);
1250 96 ff_vvc_ps_uninit(&s->ps);
1251 96 ff_cbs_close(&s->cbc);
1252
1253 96 return 0;
1254 }
1255
1256 64 static av_cold void init_default_scale_m(void)
1257 {
1258 64 memset(&ff_vvc_default_scale_m, 16, sizeof(ff_vvc_default_scale_m));
1259 64 }
1260
1261 #define VVC_MAX_DELAYED_FRAMES 16
1262 96 static av_cold int vvc_decode_init(AVCodecContext *avctx)
1263 {
1264 96 VVCContext *s = avctx->priv_data;
1265 static AVOnce init_static_once = AV_ONCE_INIT;
1266 96 const int cpu_count = av_cpu_count();
1267 96 const int delayed = FFMIN(cpu_count, VVC_MAX_DELAYED_FRAMES);
1268
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 96 int thread_count = avctx->thread_count ? avctx->thread_count : delayed;
1269 int ret;
1270
1271 96 s->avctx = avctx;
1272
1273 96 ret = ff_cbs_init(&s->cbc, AV_CODEC_ID_VVC, avctx);
1274
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 96 if (ret)
1275 ✗ return ret;
1276
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 96 if (avctx->extradata_size > 0 && avctx->extradata) {
1278 35 ret = ff_cbs_read_extradata_from_codec(s->cbc, &s->current_frame, avctx);
1279
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 35 if (ret < 0)
1280 ✗ return ret;
1281 }
1282
1283
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 96 s->nb_fcs = (avctx->flags & AV_CODEC_FLAG_LOW_DELAY) ? 1 : delayed;
1284 96 s->fcs = av_calloc(s->nb_fcs, sizeof(*s->fcs));
1285
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 96 if (!s->fcs)
1286 ✗ return AVERROR(ENOMEM);
1287
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 864 for (int i = 0; i < s->nb_fcs; i++) {
1289 768 VVCFrameContext *fc = s->fcs + i;
1290 768 ret = frame_context_init(fc, avctx);
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 768 if (ret < 0)
1292 ✗ return ret;
1293 }
1294
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 96 if (thread_count == 1)
1296 96 thread_count = 0;
1297 96 s->executor = ff_vvc_executor_alloc(s, thread_count);
1298
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 96 if (!s->executor)
1299 ✗ return AVERROR(ENOMEM);
1300
1301 96 s->eos = 1;
1302 96 GDR_SET_RECOVERED(s);
1303 96 ff_thread_once(&init_static_once, init_default_scale_m);
1304
1305 96 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