FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/vvc/refs.c
Date: 2026-06-16 12:54:33
Exec Total Coverage
Lines: 355 418 84.9%
Functions: 26 28 92.9%
Branches: 227 312 72.8%
Line Branch Exec Source
1 /*
2 * VVC reference management
3 *
4 * Copyright (C) 2023 Nuo Mi
5 *
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23 #include <stdatomic.h>
24 #include <stdbool.h>
25
26 #include "libavutil/mem.h"
27 #include "libavutil/thread.h"
28 #include "libavutil/refstruct.h"
29 #include "libavcodec/thread.h"
30 #include "libavcodec/decode.h"
31
32 #include "refs.h"
33
34
35 typedef struct FrameProgress {
36 atomic_int progress[VVC_PROGRESS_LAST];
37 VVCProgressListener *listener[VVC_PROGRESS_LAST];
38 AVMutex lock;
39 AVCond cond;
40 uint8_t has_lock;
41 uint8_t has_cond;
42 } FrameProgress;
43
44 54264 void ff_vvc_unref_frame(VVCFrameContext *fc, VVCFrame *frame, int flags)
45 {
46 /* frame->frame can be NULL if context init failed */
47
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 54264 if (!frame->frame || !frame->frame->buf[0])
48 41796 return;
49
50 12468 frame->flags &= ~flags;
51
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 12468 if (!(frame->flags & ~VVC_FRAME_FLAG_CORRUPT))
52 6298 frame->flags = 0;
53
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 12468 if (!frame->flags) {
54 6298 av_frame_unref(frame->frame);
55
56
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 6298 if (frame->needs_fg) {
57 ✗ av_frame_unref(frame->frame_grain);
58 ✗ frame->needs_fg = 0;
59 }
60
61 6298 av_refstruct_unref(&frame->sps);
62 6298 av_refstruct_unref(&frame->pps);
63 6298 av_refstruct_unref(&frame->progress);
64
65 6298 av_refstruct_unref(&frame->tab_dmvr_mvf);
66
67 6298 av_refstruct_unref(&frame->rpl);
68 6298 frame->nb_rpl_elems = 0;
69 6298 av_refstruct_unref(&frame->rpl_tab);
70
71 6298 frame->collocated_ref = NULL;
72 6298 av_refstruct_unref(&frame->hwaccel_picture_private);
73 }
74 }
75
76 3060599 const RefPicList *ff_vvc_get_ref_list(const VVCFrameContext *fc, const VVCFrame *ref, int x0, int y0)
77 {
78 3060599 const int x_cb = x0 >> fc->ps.sps->ctb_log2_size_y;
79 3060599 const int y_cb = y0 >> fc->ps.sps->ctb_log2_size_y;
80 3060599 const int pic_width_cb = fc->ps.pps->ctb_width;
81 3060599 const int ctb_addr_rs = y_cb * pic_width_cb + x_cb;
82
83 3060599 return (const RefPicList *)ref->rpl_tab[ctb_addr_rs];
84 }
85
86 110 void ff_vvc_clear_refs(VVCFrameContext *fc)
87 {
88
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 1980 for (int i = 0; i < FF_ARRAY_ELEMS(fc->DPB); i++)
89 1870 ff_vvc_unref_frame(fc, &fc->DPB[i],
90 VVC_FRAME_FLAG_SHORT_REF | VVC_FRAME_FLAG_LONG_REF);
91 110 }
92
93 102 void ff_vvc_flush_dpb(VVCFrameContext *fc)
94 {
95
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 1836 for (int i = 0; i < FF_ARRAY_ELEMS(fc->DPB); i++)
96 1734 ff_vvc_unref_frame(fc, &fc->DPB[i], ~0);
97 102 }
98
99 1119 static void free_progress(AVRefStructOpaque unused, void *obj)
100 {
101 1119 FrameProgress *p = (FrameProgress *)obj;
102
103
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 1119 if (p->has_cond)
104 1119 ff_cond_destroy(&p->cond);
105
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 1119 if (p->has_lock)
106 1119 ff_mutex_destroy(&p->lock);
107 1119 }
108
109 1119 static FrameProgress *alloc_progress(void)
110 {
111 1119 FrameProgress *p = av_refstruct_alloc_ext(sizeof(*p), 0, NULL, free_progress);
112
113
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 1119 if (p) {
114 1119 p->has_lock = !ff_mutex_init(&p->lock, NULL);
115 1119 p->has_cond = !ff_cond_init(&p->cond, NULL);
116
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 1119 if (!p->has_lock || !p->has_cond)
117 ✗ av_refstruct_unref(&p);
118 }
119 1119 return p;
120 }
121
122 1119 static VVCFrame *alloc_frame(VVCContext *s, VVCFrameContext *fc)
123 {
124 1119 const VVCSPS *sps = fc->ps.sps;
125 1119 const VVCPPS *pps = fc->ps.pps;
126
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 4521 for (int i = 0; i < FF_ARRAY_ELEMS(fc->DPB); i++) {
127 int ret;
128 4521 VVCFrame *frame = &fc->DPB[i];
129 4521 VVCWindow *win = &frame->scaling_win;
130
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 4521 if (frame->frame->buf[0])
131 3402 continue;
132
133 1119 frame->sps = av_refstruct_ref_c(fc->ps.sps);
134 1119 frame->pps = av_refstruct_ref_c(fc->ps.pps);
135
136 // Add LCEVC SEI metadata here, as it's needed in get_buffer()
137
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 1119 if (fc->sei.common.itut_t35.lcevc) {
138 32 ret = ff_frame_new_side_data_from_buf(s->avctx, frame->frame,
139 AV_FRAME_DATA_LCEVC, &fc->sei.common.itut_t35.lcevc);
140
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 32 if (ret < 0)
141 ✗ goto fail;
142 }
143
144 1119 ret = ff_thread_get_buffer(s->avctx, frame->frame, AV_GET_BUFFER_FLAG_REF);
145
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 1119 if (ret < 0)
146 ✗ return NULL;
147
148 1119 frame->rpl = av_refstruct_allocz(s->current_frame.nb_units * sizeof(RefPicListTab));
149
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 1119 if (!frame->rpl)
150 ✗ goto fail;
151 1119 frame->nb_rpl_elems = s->current_frame.nb_units;
152
153 1119 frame->tab_dmvr_mvf = av_refstruct_pool_get(fc->tab_dmvr_mvf_pool);
154
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 1119 if (!frame->tab_dmvr_mvf)
155 ✗ goto fail;
156
157 1119 frame->rpl_tab = av_refstruct_pool_get(fc->rpl_tab_pool);
158
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 1119 if (!frame->rpl_tab)
159 ✗ goto fail;
160 1119 frame->ctb_count = pps->ctb_width * pps->ctb_height;
161
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 57122 for (int j = 0; j < frame->ctb_count; j++)
162 56003 frame->rpl_tab[j] = frame->rpl;
163
164 1119 win->left_offset = pps->r->pps_scaling_win_left_offset * (1 << sps->hshift[CHROMA]);
165 1119 win->right_offset = pps->r->pps_scaling_win_right_offset * (1 << sps->hshift[CHROMA]);
166 1119 win->top_offset = pps->r->pps_scaling_win_top_offset * (1 << sps->vshift[CHROMA]);
167 1119 win->bottom_offset = pps->r->pps_scaling_win_bottom_offset * (1 << sps->vshift[CHROMA]);
168 1119 frame->ref_width = pps->r->pps_pic_width_in_luma_samples - win->left_offset - win->right_offset;
169 1119 frame->ref_height = pps->r->pps_pic_height_in_luma_samples - win->bottom_offset - win->top_offset;
170
171
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 1119 if (fc->sei.frame_field_info.present) {
172
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 21 if (fc->sei.frame_field_info.picture_struct == AV_PICTURE_STRUCTURE_TOP_FIELD)
173 11 frame->frame->flags |= AV_FRAME_FLAG_TOP_FIELD_FIRST;
174
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 21 if (fc->sei.frame_field_info.picture_struct == AV_PICTURE_STRUCTURE_TOP_FIELD ||
175
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 10 fc->sei.frame_field_info.picture_struct == AV_PICTURE_STRUCTURE_BOTTOM_FIELD)
176 21 frame->frame->flags |= AV_FRAME_FLAG_INTERLACED;
177 }
178
179 1119 frame->progress = alloc_progress();
180
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 1119 if (!frame->progress)
181 ✗ goto fail;
182
183 1119 ret = ff_hwaccel_frame_priv_alloc(s->avctx, &frame->hwaccel_picture_private);
184
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 1119 if (ret < 0)
185 ✗ goto fail;
186
187 1119 return frame;
188 ✗ fail:
189 ✗ ff_vvc_unref_frame(fc, frame, ~0);
190 ✗ return NULL;
191 }
192 ✗ av_log(s->avctx, AV_LOG_ERROR, "Error allocating frame, DPB full.\n");
193 ✗ return NULL;
194 }
195
196 1102 static void set_pict_type(AVFrame *frame, const VVCContext *s, const VVCFrameContext *fc)
197 {
198 1102 bool has_b = false, has_inter = false;
199
200
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 1102 if (IS_IRAP(s)) {
201 122 frame->pict_type = AV_PICTURE_TYPE_I;
202 122 frame->flags |= AV_FRAME_FLAG_KEY;
203 122 return;
204 }
205
206
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 980 if (fc->ps.ph.r->ph_inter_slice_allowed_flag) {
207 // At this point, fc->slices is not fully initialized; we need to inspect the CBS directly.
208 977 const CodedBitstreamFragment *current = &s->current_frame;
209
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 2507 for (int i = 0; i < current->nb_units && !has_b; i++) {
210 1530 const CodedBitstreamUnit *unit = current->units + i;
211
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 1530 if (unit->content_ref && unit->type <= VVC_RSV_IRAP_11) {
212 977 const H266RawSliceHeader *rsh = unit->content_ref;
213 977 has_inter |= !IS_I(rsh);
214 977 has_b |= IS_B(rsh);
215 }
216 }
217 }
218
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 980 if (!has_inter)
219 3 frame->pict_type = AV_PICTURE_TYPE_I;
220
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 977 else if (has_b)
221 951 frame->pict_type = AV_PICTURE_TYPE_B;
222 else
223 26 frame->pict_type = AV_PICTURE_TYPE_P;
224 }
225
226 1102 int ff_vvc_set_new_ref(VVCContext *s, VVCFrameContext *fc, AVFrame **frame)
227 {
228 1102 const VVCPH *ph= &fc->ps.ph;
229 1102 const int poc = ph->poc;
230 VVCFrame *ref;
231
232 /* check that this POC doesn't already exist */
233
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 19836 for (int i = 0; i < FF_ARRAY_ELEMS(fc->DPB); i++) {
234 18734 VVCFrame *frame = &fc->DPB[i];
235
236
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 18734 if (frame->frame->buf[0] && frame->sequence == s->seq_decode &&
237
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 5045 frame->poc == poc) {
238 ✗ av_log(s->avctx, AV_LOG_ERROR, "Duplicate POC in a sequence: %d.\n", poc);
239 ✗ return AVERROR_INVALIDDATA;
240 }
241 }
242
243 1102 ref = alloc_frame(s, fc);
244
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 1102 if (!ref)
245 ✗ return AVERROR(ENOMEM);
246
247 1102 set_pict_type(ref->frame, s, fc);
248 1102 *frame = ref->frame;
249 1102 fc->ref = ref;
250
251
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 1102 if (s->no_output_before_recovery_flag && (IS_RASL(s) || !GDR_IS_RECOVERED(s)))
252 15 ref->flags = VVC_FRAME_FLAG_SHORT_REF;
253
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 1087 else if (ph->r->ph_pic_output_flag)
254 1087 ref->flags = VVC_FRAME_FLAG_OUTPUT | VVC_FRAME_FLAG_SHORT_REF;
255
256
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 1102 if (!ph->r->ph_non_ref_pic_flag)
257 1090 ref->flags |= VVC_FRAME_FLAG_SHORT_REF;
258
259 1102 ref->poc = poc;
260 1102 ref->sequence = s->seq_decode;
261 1102 ref->frame->crop_left = fc->ps.pps->r->pps_conf_win_left_offset << fc->ps.sps->hshift[CHROMA];
262 1102 ref->frame->crop_right = fc->ps.pps->r->pps_conf_win_right_offset << fc->ps.sps->hshift[CHROMA];
263 1102 ref->frame->crop_top = fc->ps.pps->r->pps_conf_win_top_offset << fc->ps.sps->vshift[CHROMA];
264 1102 ref->frame->crop_bottom = fc->ps.pps->r->pps_conf_win_bottom_offset << fc->ps.sps->vshift[CHROMA];
265
266 1102 return 0;
267 }
268
269 1237 int ff_vvc_output_frame(VVCContext *s, VVCFrameContext *fc, AVFrame *out, const int no_output_of_prior_pics_flag, int flush)
270 {
271 1237 const VVCSPS *sps = fc->ps.sps;
272 116 do {
273 1353 int nb_output = 0;
274 1353 int min_poc = INT_MAX;
275 int min_idx, ret;
276
277
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 1353 if (no_output_of_prior_pics_flag) {
278 ✗ for (int i = 0; i < FF_ARRAY_ELEMS(fc->DPB); i++) {
279 ✗ VVCFrame *frame = &fc->DPB[i];
280 ✗ if (!(frame->flags & VVC_FRAME_FLAG_BUMPING) && frame->poc != fc->ps.ph.poc &&
281 ✗ frame->sequence == s->seq_output) {
282 ✗ ff_vvc_unref_frame(fc, frame, VVC_FRAME_FLAG_OUTPUT);
283 }
284 }
285 }
286
287
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 24354 for (int i = 0; i < FF_ARRAY_ELEMS(fc->DPB); i++) {
288 23001 VVCFrame *frame = &fc->DPB[i];
289
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 23001 if ((frame->flags & VVC_FRAME_FLAG_OUTPUT) &&
290
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 5179 frame->sequence == s->seq_output) {
291 4913 nb_output++;
292
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 4913 if (frame->poc < min_poc || nb_output == 1) {
293 2504 min_poc = frame->poc;
294 2504 min_idx = i;
295 }
296 }
297 }
298
299 /* wait for more frames before output */
300
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 1353 if (!flush && s->seq_output == s->seq_decode && sps &&
301
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 1059 nb_output <= sps->r->sps_dpb_params.dpb_max_num_reorder_pics[sps->r->sps_max_sublayers_minus1])
302 167 return 0;
303
304
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 1186 if (nb_output) {
305 1037 VVCFrame *frame = &fc->DPB[min_idx];
306
307
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 1037 if (frame->flags & VVC_FRAME_FLAG_CORRUPT)
308 ✗ frame->frame->flags |= AV_FRAME_FLAG_CORRUPT;
309
310
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 1037 ret = av_frame_ref(out, frame->needs_fg ? frame->frame_grain : frame->frame);
311
312
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 1037 if (!ret && !(s->avctx->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN))
313 1037 av_frame_remove_side_data(out, AV_FRAME_DATA_FILM_GRAIN_PARAMS);
314
315
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 1037 if (frame->flags & VVC_FRAME_FLAG_BUMPING)
316 688 ff_vvc_unref_frame(fc, frame, VVC_FRAME_FLAG_OUTPUT | VVC_FRAME_FLAG_BUMPING);
317 else
318 349 ff_vvc_unref_frame(fc, frame, VVC_FRAME_FLAG_OUTPUT);
319
320
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 1037 if (ret < 0)
321 ✗ return ret;
322
323 1037 av_log(s->avctx, AV_LOG_DEBUG,
324 "Output frame with POC %d.\n", frame->poc);
325 1037 return 1;
326 }
327
328
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 149 if (s->seq_output != s->seq_decode)
329 116 s->seq_output = (s->seq_output + 1) & 0xff;
330 else
331 33 break;
332 } while (1);
333 33 return 0;
334 }
335
336 992 void ff_vvc_bump_frame(VVCContext *s, VVCFrameContext *fc)
337 {
338 992 const VVCSPS *sps = fc->ps.sps;
339 992 const int poc = fc->ps.ph.poc;
340 992 int dpb = 0;
341 992 int min_poc = INT_MAX;
342
343
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 17856 for (int i = 0; i < FF_ARRAY_ELEMS(fc->DPB); i++) {
344 16864 VVCFrame *frame = &fc->DPB[i];
345
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 16864 if ((frame->flags) &&
346
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 6103 frame->sequence == s->seq_output &&
347
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 5975 frame->poc != poc) {
348 5017 dpb++;
349 }
350 }
351
352
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 992 if (sps && dpb >= sps->r->sps_dpb_params.dpb_max_dec_pic_buffering_minus1[sps->r->sps_max_sublayers_minus1] + 1) {
353
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 8514 for (int i = 0; i < FF_ARRAY_ELEMS(fc->DPB); i++) {
354 8041 VVCFrame *frame = &fc->DPB[i];
355
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 8041 if ((frame->flags) &&
356
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 3246 frame->sequence == s->seq_output &&
357
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 3246 frame->poc != poc) {
358
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 2773 if (frame->flags == VVC_FRAME_FLAG_OUTPUT && frame->poc < min_poc) {
359 51 min_poc = frame->poc;
360 }
361 }
362 }
363
364
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 8514 for (int i = 0; i < FF_ARRAY_ELEMS(fc->DPB); i++) {
365 8041 VVCFrame *frame = &fc->DPB[i];
366
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 8041 if (frame->flags & VVC_FRAME_FLAG_OUTPUT &&
367
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 2197 frame->sequence == s->seq_output &&
368
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 2197 frame->poc <= min_poc) {
369 1993 frame->flags |= VVC_FRAME_FLAG_BUMPING;
370 }
371 }
372
373 473 dpb--;
374 }
375 992 }
376
377 7583 static VVCFrame *find_ref_idx(VVCContext *s, VVCFrameContext *fc, int poc, uint8_t use_msb)
378 {
379
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 7583 const unsigned mask = use_msb ? ~0 : fc->ps.sps->max_pic_order_cnt_lsb - 1;
380
381
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 27669 for (int i = 0; i < FF_ARRAY_ELEMS(fc->DPB); i++) {
382 27652 VVCFrame *ref = &fc->DPB[i];
383
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 27652 if (ref->frame->buf[0] && ref->sequence == s->seq_decode) {
384
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 23977 if ((ref->poc & mask) == poc)
385 7566 return ref;
386 }
387 }
388 17 return NULL;
389 }
390
391 25215 static void mark_ref(VVCFrame *frame, int flag)
392 {
393 25215 frame->flags &= ~(VVC_FRAME_FLAG_LONG_REF | VVC_FRAME_FLAG_SHORT_REF);
394 25215 frame->flags |= flag;
395 25215 }
396
397 17 static VVCFrame *generate_missing_ref(VVCContext *s, VVCFrameContext *fc, int poc)
398 {
399 17 const VVCSPS *sps = fc->ps.sps;
400 17 const VVCPPS *pps = fc->ps.pps;
401 VVCFrame *frame;
402
403 17 frame = alloc_frame(s, fc);
404
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 17 if (!frame)
405 ✗ return NULL;
406
407
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 17 if (!s->avctx->hwaccel) {
408
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 17 if (!sps->pixel_shift) {
409 ✗ for (int i = 0; frame->frame->buf[i]; i++)
410 ✗ memset(frame->frame->buf[i]->data, 1 << (sps->bit_depth - 1),
411 ✗ frame->frame->buf[i]->size);
412 } else {
413
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 68 for (int i = 0; frame->frame->data[i]; i++)
414
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 10739 for (int y = 0; y < (pps->height >> sps->vshift[i]); y++) {
415 10688 uint8_t *dst = frame->frame->data[i] + y * frame->frame->linesize[i];
416 10688 AV_WN16(dst, 1 << (sps->bit_depth - 1));
417 10688 av_memcpy_backptr(dst + 2, 2, 2*(pps->width >> sps->hshift[i]) - 2);
418 }
419 }
420 }
421
422 17 frame->poc = poc;
423 17 frame->sequence = s->seq_decode;
424 17 frame->flags = VVC_FRAME_FLAG_CORRUPT;
425
426 17 ff_vvc_report_frame_finished(frame);
427
428 17 return frame;
429 }
430
431 #define CHECK_MAX(d) (frame->ref_##d * frame->sps->r->sps_pic_##d##_max_in_luma_samples >= ref->ref_##d * (frame->pps->r->pps_pic_##d##_in_luma_samples - max))
432 #define CHECK_SAMPLES(d) (frame->pps->r->pps_pic_##d##_in_luma_samples == ref->pps->r->pps_pic_##d##_in_luma_samples)
433 7583 static int check_candidate_ref(const VVCFrame *frame, const VVCRefPic *refp)
434 {
435 7583 const VVCFrame *ref = refp->ref;
436
437
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 7583 if (refp->is_scaled) {
438 8 const int max = FFMAX(8, frame->sps->min_cb_size_y);
439 16 return frame->ref_width * 2 >= ref->ref_width &&
440
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 8 frame->ref_height * 2 >= ref->ref_height &&
441
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 8 frame->ref_width <= ref->ref_width * 8 &&
442
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 8 frame->ref_height <= ref->ref_height * 8 &&
443
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 16 CHECK_MAX(width) && CHECK_MAX(height);
444 }
445
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 7575 return CHECK_SAMPLES(width) && CHECK_SAMPLES(height);
446 }
447
448 #define RPR_SCALE(f) (((ref->f << 14) + (fc->ref->f >> 1)) / fc->ref->f)
449 /* add a reference with the given poc to the list and mark it as used in DPB */
450 7583 static int add_candidate_ref(VVCContext *s, VVCFrameContext *fc, RefPicList *list,
451 int poc, int ref_flag, uint8_t use_msb)
452 {
453 7583 VVCFrame *ref = find_ref_idx(s, fc, poc, use_msb);
454 7583 VVCRefPic *refp = &list->refs[list->nb_refs];
455
456
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 7583 if (ref == fc->ref || list->nb_refs >= VVC_MAX_REF_ENTRIES)
457 ✗ return AVERROR_INVALIDDATA;
458
459
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 7583 if (!IS_CVSS(s)) {
460
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 7523 const bool ref_corrupt = !ref || (ref->flags & VVC_FRAME_FLAG_CORRUPT);
461
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 14183 const bool recovering = s->no_output_before_recovery_flag &&
462
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 6660 (IS_RASL(s) || !GDR_IS_RECOVERED(s));
463
464
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 7523 if (ref_corrupt && !recovering) {
465 ✗ if (!(s->avctx->flags & AV_CODEC_FLAG_OUTPUT_CORRUPT) &&
466 ✗ !(s->avctx->flags2 & AV_CODEC_FLAG2_SHOW_ALL))
467 ✗ return AVERROR_INVALIDDATA;
468
469 ✗ fc->ref->flags |= VVC_FRAME_FLAG_CORRUPT;
470 }
471 }
472
473
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 7583 if (!ref) {
474 17 ref = generate_missing_ref(s, fc, poc);
475
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 17 if (!ref)
476 ✗ return AVERROR(ENOMEM);
477 }
478
479 7583 refp->poc = poc;
480 7583 refp->ref = ref;
481 7583 refp->is_lt = ref_flag & VVC_FRAME_FLAG_LONG_REF;
482 22749 refp->is_scaled = ref->sps->r->sps_num_subpics_minus1 != fc->ref->sps->r->sps_num_subpics_minus1||
483
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 7583 memcmp(&ref->scaling_win, &fc->ref->scaling_win, sizeof(ref->scaling_win)) ||
484
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 22741 ref->pps->r->pps_pic_width_in_luma_samples != fc->ref->pps->r->pps_pic_width_in_luma_samples ||
485
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 7575 ref->pps->r->pps_pic_height_in_luma_samples != fc->ref->pps->r->pps_pic_height_in_luma_samples;
486
487
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 7583 if (!check_candidate_ref(fc->ref, refp))
488 ✗ return AVERROR_INVALIDDATA;
489
490
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 7583 if (refp->is_scaled) {
491 8 refp->scale[0] = RPR_SCALE(ref_width);
492 8 refp->scale[1] = RPR_SCALE(ref_height);
493 }
494 7583 list->nb_refs++;
495
496 7583 mark_ref(ref, ref_flag);
497 7583 return 0;
498 }
499
500 1701 static int init_slice_rpl(const VVCFrameContext *fc, SliceContext *sc)
501 {
502 1701 VVCFrame *frame = fc->ref;
503 1701 const VVCSH *sh = &sc->sh;
504
505
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 1701 if (sc->slice_idx >= frame->nb_rpl_elems)
506 ✗ return AVERROR_INVALIDDATA;
507
508
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 55811 for (int i = 0; i < sh->num_ctus_in_curr_slice; i++) {
509 54110 const int rs = sh->ctb_addr_in_curr_slice[i];
510 54110 frame->rpl_tab[rs] = frame->rpl + sc->slice_idx;
511 }
512
513 1701 sc->rpl = frame->rpl_tab[sh->ctb_addr_in_curr_slice[0]]->refPicList;
514
515 1701 return 0;
516 }
517
518 7189 static int delta_poc_st(const H266RefPicListStruct *rpls,
519 const int lx, const int i, const VVCSPS *sps)
520 {
521 7189 int abs_delta_poc_st = rpls->abs_delta_poc_st[i];
522
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 7189 if (!((sps->r->sps_weighted_pred_flag ||
523
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 6670 sps->r->sps_weighted_bipred_flag) && i != 0))
524 6742 abs_delta_poc_st++;
525 7189 return (1 - 2 * rpls->strp_entry_sign_flag[i]) * abs_delta_poc_st;
526 }
527
528 394 static int poc_lt(int *prev_delta_poc_msb, const int poc, const H266RefPicLists *ref_lists,
529 const int lx, const int j, const int max_poc_lsb)
530 {
531 394 const H266RefPicListStruct *rpls = ref_lists->rpl_ref_list + lx;
532
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 394 int lt_poc = rpls->ltrp_in_header_flag ? ref_lists->poc_lsb_lt[lx][j] : rpls->rpls_poc_lsb_lt[j];
533
534
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 394 if (ref_lists->delta_poc_msb_cycle_present_flag[lx][j]) {
535 ✗ const uint32_t delta = ref_lists->delta_poc_msb_cycle_lt[lx][j] + *prev_delta_poc_msb;
536 ✗ lt_poc += poc - delta * max_poc_lsb - (poc & (max_poc_lsb - 1));
537 ✗ *prev_delta_poc_msb = delta;
538 }
539 394 return lt_poc;
540 }
541
542 1701 int ff_vvc_slice_rpl(VVCContext *s, VVCFrameContext *fc, SliceContext *sc)
543 {
544 1701 const VVCSPS *sps = fc->ps.sps;
545 1701 const H266RawPPS *pps = fc->ps.pps->r;
546 1701 const VVCPH *ph = &fc->ps.ph;
547 1701 const H266RawSliceHeader *rsh = sc->sh.r;
548 1701 const int max_poc_lsb = sps->max_pic_order_cnt_lsb;
549 1701 const H266RefPicLists *ref_lists =
550
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 1701 pps->pps_rpl_info_in_ph_flag ? &ph->r->ph_ref_pic_lists : &rsh->sh_ref_pic_lists;
551 1701 int ret = 0;
552
553 1701 ret = init_slice_rpl(fc, sc);
554
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 1701 if (ret < 0)
555 ✗ return ret;
556
557
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 5103 for (int lx = L0; lx <= L1; lx++) {
558 3402 const H266RefPicListStruct *rpls = ref_lists->rpl_ref_list + lx;
559 3402 RefPicList *rpl = sc->rpl + lx;
560 3402 int poc_base = ph->poc;
561 3402 int prev_delta_poc_msb = 0;
562
563 3402 rpl->nb_refs = 0;
564
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 10985 for (int i = 0, j = 0; i < rpls->num_ref_entries; i++) {
565 int poc;
566
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 7583 if (!rpls->inter_layer_ref_pic_flag[i]) {
567 7583 int use_msb = 1;
568 int ref_flag;
569
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 7583 if (rpls->st_ref_pic_flag[i]) {
570 7189 poc = poc_base + delta_poc_st(rpls, lx, i, sps);
571 7189 poc_base = poc;
572 7189 ref_flag = VVC_FRAME_FLAG_SHORT_REF;
573 } else {
574 394 use_msb = ref_lists->delta_poc_msb_cycle_present_flag[lx][j];
575 394 poc = poc_lt(&prev_delta_poc_msb, ph->poc, ref_lists, lx, j, max_poc_lsb);
576 394 ref_flag = VVC_FRAME_FLAG_LONG_REF;
577 394 j++;
578 }
579 7583 ret = add_candidate_ref(s, fc, rpl, poc, ref_flag, use_msb);
580
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 7583 if (ret < 0)
581 ✗ return ret;
582 } else {
583 // OPI_B_3.bit and VPS_A_3.bit should cover this
584 ✗ avpriv_report_missing_feature(fc->log_ctx, "Inter layer ref");
585 ✗ ret = AVERROR_PATCHWELCOME;
586 ✗ return ret;
587 }
588 }
589
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 3402 if (ph->r->ph_temporal_mvp_enabled_flag &&
590
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 3124 (!rsh->sh_collocated_from_l0_flag) == lx &&
591
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 1562 rsh->sh_collocated_ref_idx < rpl->nb_refs) {
592 1562 const VVCRefPic *refp = rpl->refs + rsh->sh_collocated_ref_idx;
593
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 1562 if (refp->is_scaled || refp->ref->sps->ctb_log2_size_y != sps->ctb_log2_size_y)
594 ✗ return AVERROR_INVALIDDATA;
595 1562 fc->ref->collocated_ref = refp->ref;
596 }
597 }
598 1701 return 0;
599 }
600
601 1102 int ff_vvc_frame_rpl(VVCContext *s, VVCFrameContext *fc, SliceContext *sc)
602 {
603 1102 int ret = 0;
604
605 /* clear the reference flags on all frames except the current one */
606
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 19836 for (int i = 0; i < FF_ARRAY_ELEMS(fc->DPB); i++) {
607 18734 VVCFrame *frame = &fc->DPB[i];
608
609
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 18734 if (frame == fc->ref)
610 1102 continue;
611
612 17632 mark_ref(frame, 0);
613 }
614
615
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 1102 if ((ret = ff_vvc_slice_rpl(s, fc, sc)) < 0)
616 ✗ goto fail;
617
618 1102 fail:
619 /* release any frames that are now unused */
620
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 19836 for (int i = 0; i < FF_ARRAY_ELEMS(fc->DPB); i++)
621 18734 ff_vvc_unref_frame(fc, &fc->DPB[i], 0);
622 1102 return ret;
623 }
624
625 1119 void ff_vvc_report_frame_finished(VVCFrame *frame)
626 {
627 1119 ff_vvc_report_progress(frame, VVC_PROGRESS_MV, INT_MAX);
628 1119 ff_vvc_report_progress(frame, VVC_PROGRESS_PIXEL, INT_MAX);
629 1119 }
630
631 103190 static int is_progress_done(const FrameProgress *p, const VVCProgressListener *l)
632 {
633 103190 return p->progress[l->vp] > l->y;
634 }
635
636 ✗ static void add_listener(VVCProgressListener **prev, VVCProgressListener *l)
637 {
638 ✗ l->next = *prev;
639 ✗ *prev = l;
640 ✗ }
641
642 ✗ static VVCProgressListener* remove_listener(VVCProgressListener **prev, VVCProgressListener *l)
643 {
644 ✗ *prev = l->next;
645 ✗ l->next = NULL;
646 ✗ return l;
647 }
648
649 10137 static VVCProgressListener* get_done_listener(FrameProgress *p, const VVCProgress vp)
650 {
651 10137 VVCProgressListener *list = NULL;
652 10137 VVCProgressListener **prev = &p->listener[vp];
653
654
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 10137 while (*prev) {
655 ✗ if (is_progress_done(p, *prev)) {
656 ✗ VVCProgressListener *l = remove_listener(prev, *prev);
657 ✗ add_listener(&list, l);
658 } else {
659 ✗ prev = &(*prev)->next;
660 }
661 }
662 10137 return list;
663 }
664
665 12341 void ff_vvc_report_progress(VVCFrame *frame, const VVCProgress vp, const int y)
666 {
667 12341 FrameProgress *p = frame->progress;
668 12341 VVCProgressListener *l = NULL;
669
670 12341 ff_mutex_lock(&p->lock);
671
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 12341 if (p->progress[vp] < y) {
672 // Due to the nature of thread scheduling, later progress may reach this point before earlier progress.
673 // Therefore, we only update the progress when p->progress[vp] < y.
674 10137 p->progress[vp] = y;
675 10137 l = get_done_listener(p, vp);
676 10137 ff_cond_signal(&p->cond);
677 }
678 12341 ff_mutex_unlock(&p->lock);
679
680
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 12341 while (l) {
681 ✗ l->progress_done(l);
682 ✗ l = l->next;
683 }
684 12341 }
685
686 103190 void ff_vvc_add_progress_listener(VVCFrame *frame, VVCProgressListener *l)
687 {
688 103190 FrameProgress *p = frame->progress;
689
690 103190 ff_mutex_lock(&p->lock);
691
692
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 103190 if (is_progress_done(p, l)) {
693 103190 ff_mutex_unlock(&p->lock);
694 103190 l->progress_done(l);
695 } else {
696 ✗ add_listener(p->listener + l->vp, l);
697 ✗ ff_mutex_unlock(&p->lock);
698 }
699 103190 }
700