FFmpeg
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
hevc_refs.c
Go to the documentation of this file.
1 /*
2  * HEVC video decoder
3  *
4  * Copyright (C) 2012 - 2013 Guillaume Martres
5  * Copyright (C) 2012 - 2013 Gildas Cocherel
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 "libavutil/avassert.h"
25 #include "libavutil/pixdesc.h"
26 
27 #include "internal.h"
28 #include "thread.h"
29 #include "hevc.h"
30 
32 {
33  /* frame->frame can be NULL if context init failed */
34  if (!frame->frame || !frame->frame->buf[0])
35  return;
36 
37  frame->flags &= ~flags;
38  if (!frame->flags) {
39  ff_thread_release_buffer(s->avctx, &frame->tf);
40 
42  frame->tab_mvf = NULL;
43 
44  av_buffer_unref(&frame->rpl_buf);
46  frame->rpl_tab = NULL;
47  frame->refPicList = NULL;
48 
49  frame->collocated_ref = NULL;
50 
53  }
54 }
55 
57 {
58  int x_cb = x0 >> s->ps.sps->log2_ctb_size;
59  int y_cb = y0 >> s->ps.sps->log2_ctb_size;
60  int pic_width_cb = s->ps.sps->ctb_width;
61  int ctb_addr_ts = s->ps.pps->ctb_addr_rs_to_ts[y_cb * pic_width_cb + x_cb];
62  return (RefPicList *)ref->rpl_tab[ctb_addr_ts];
63 }
64 
66 {
67  int i;
68  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++)
69  ff_hevc_unref_frame(s, &s->DPB[i],
72 }
73 
75 {
76  int i;
77  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++)
78  ff_hevc_unref_frame(s, &s->DPB[i], ~0);
79 }
80 
82 {
83  int i, j, ret;
84  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
85  HEVCFrame *frame = &s->DPB[i];
86  if (frame->frame->buf[0])
87  continue;
88 
89  ret = ff_thread_get_buffer(s->avctx, &frame->tf,
91  if (ret < 0)
92  return NULL;
93 
94  frame->rpl_buf = av_buffer_allocz(s->pkt.nb_nals * sizeof(RefPicListTab));
95  if (!frame->rpl_buf)
96  goto fail;
97 
99  if (!frame->tab_mvf_buf)
100  goto fail;
101  frame->tab_mvf = (MvField *)frame->tab_mvf_buf->data;
102 
104  if (!frame->rpl_tab_buf)
105  goto fail;
106  frame->rpl_tab = (RefPicListTab **)frame->rpl_tab_buf->data;
107  frame->ctb_count = s->ps.sps->ctb_width * s->ps.sps->ctb_height;
108  for (j = 0; j < frame->ctb_count; j++)
109  frame->rpl_tab[j] = (RefPicListTab *)frame->rpl_buf->data;
110 
113 
114  if (s->avctx->hwaccel) {
115  const AVHWAccel *hwaccel = s->avctx->hwaccel;
117  if (hwaccel->frame_priv_data_size) {
119  if (!frame->hwaccel_priv_buf)
120  goto fail;
122  }
123  }
124 
125  return frame;
126 fail:
127  ff_hevc_unref_frame(s, frame, ~0);
128  return NULL;
129  }
130  av_log(s->avctx, AV_LOG_ERROR, "Error allocating frame, DPB full.\n");
131  return NULL;
132 }
133 
135 {
136  HEVCFrame *ref;
137  int i;
138 
139  /* check that this POC doesn't already exist */
140  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
141  HEVCFrame *frame = &s->DPB[i];
142 
143  if (frame->frame->buf[0] && frame->sequence == s->seq_decode &&
144  frame->poc == poc) {
145  av_log(s->avctx, AV_LOG_ERROR, "Duplicate POC in a sequence: %d.\n",
146  poc);
147  return AVERROR_INVALIDDATA;
148  }
149  }
150 
151  ref = alloc_frame(s);
152  if (!ref)
153  return AVERROR(ENOMEM);
154 
155  *frame = ref->frame;
156  s->ref = ref;
157 
158  if (s->sh.pic_output_flag)
160  else
162 
163  ref->poc = poc;
164  ref->sequence = s->seq_decode;
165  ref->window = s->ps.sps->output_window;
166 
167  return 0;
168 }
169 
171 {
172  do {
173  int nb_output = 0;
174  int min_poc = INT_MAX;
175  int i, min_idx, ret;
176 
177  if (s->sh.no_output_of_prior_pics_flag == 1 && s->no_rasl_output_flag == 1) {
178  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
179  HEVCFrame *frame = &s->DPB[i];
180  if (!(frame->flags & HEVC_FRAME_FLAG_BUMPING) && frame->poc != s->poc &&
181  frame->sequence == s->seq_output) {
183  }
184  }
185  }
186 
187  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
188  HEVCFrame *frame = &s->DPB[i];
189  if ((frame->flags & HEVC_FRAME_FLAG_OUTPUT) &&
190  frame->sequence == s->seq_output) {
191  nb_output++;
192  if (frame->poc < min_poc || nb_output == 1) {
193  min_poc = frame->poc;
194  min_idx = i;
195  }
196  }
197  }
198 
199  /* wait for more frames before output */
200  if (!flush && s->seq_output == s->seq_decode && s->ps.sps &&
201  nb_output <= s->ps.sps->temporal_layer[s->ps.sps->max_sub_layers - 1].num_reorder_pics)
202  return 0;
203 
204  if (nb_output) {
205  HEVCFrame *frame = &s->DPB[min_idx];
206  AVFrame *dst = out;
207  AVFrame *src = frame->frame;
209  int pixel_shift = !!(desc->comp[0].depth > 8);
210 
211  ret = av_frame_ref(out, src);
212  if (frame->flags & HEVC_FRAME_FLAG_BUMPING)
214  else
216  if (ret < 0)
217  return ret;
218 
219  for (i = 0; i < 3; i++) {
220  int hshift = (i > 0) ? desc->log2_chroma_w : 0;
221  int vshift = (i > 0) ? desc->log2_chroma_h : 0;
222  int off = ((frame->window.left_offset >> hshift) << pixel_shift) +
223  (frame->window.top_offset >> vshift) * dst->linesize[i];
224  dst->data[i] += off;
225  }
227  "Output frame with POC %d.\n", frame->poc);
228  return 1;
229  }
230 
231  if (s->seq_output != s->seq_decode)
232  s->seq_output = (s->seq_output + 1) & 0xff;
233  else
234  break;
235  } while (1);
236 
237  return 0;
238 }
239 
241 {
242  int dpb = 0;
243  int min_poc = INT_MAX;
244  int i;
245 
246  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
247  HEVCFrame *frame = &s->DPB[i];
248  if ((frame->flags) &&
249  frame->sequence == s->seq_output &&
250  frame->poc != s->poc) {
251  dpb++;
252  }
253  }
254 
255  if (s->ps.sps && dpb >= s->ps.sps->temporal_layer[s->ps.sps->max_sub_layers - 1].max_dec_pic_buffering) {
256  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
257  HEVCFrame *frame = &s->DPB[i];
258  if ((frame->flags) &&
259  frame->sequence == s->seq_output &&
260  frame->poc != s->poc) {
261  if (frame->flags == HEVC_FRAME_FLAG_OUTPUT && frame->poc < min_poc) {
262  min_poc = frame->poc;
263  }
264  }
265  }
266 
267  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
268  HEVCFrame *frame = &s->DPB[i];
269  if (frame->flags & HEVC_FRAME_FLAG_OUTPUT &&
270  frame->sequence == s->seq_output &&
271  frame->poc <= min_poc) {
272  frame->flags |= HEVC_FRAME_FLAG_BUMPING;
273  }
274  }
275 
276  dpb--;
277  }
278 }
279 
281 {
282  HEVCFrame *frame = s->ref;
283  int ctb_count = frame->ctb_count;
284  int ctb_addr_ts = s->ps.pps->ctb_addr_rs_to_ts[s->sh.slice_segment_addr];
285  int i;
286 
287  if (s->slice_idx >= frame->rpl_buf->size / sizeof(RefPicListTab))
288  return AVERROR_INVALIDDATA;
289 
290  for (i = ctb_addr_ts; i < ctb_count; i++)
291  frame->rpl_tab[i] = (RefPicListTab *)frame->rpl_buf->data + s->slice_idx;
292 
293  frame->refPicList = (RefPicList *)frame->rpl_tab[ctb_addr_ts];
294 
295  return 0;
296 }
297 
299 {
300  SliceHeader *sh = &s->sh;
301 
302  uint8_t nb_list = sh->slice_type == B_SLICE ? 2 : 1;
303  uint8_t list_idx;
304  int i, j, ret;
305 
306  ret = init_slice_rpl(s);
307  if (ret < 0)
308  return ret;
309 
310  if (!(s->rps[ST_CURR_BEF].nb_refs + s->rps[ST_CURR_AFT].nb_refs +
311  s->rps[LT_CURR].nb_refs)) {
312  av_log(s->avctx, AV_LOG_ERROR, "Zero refs in the frame RPS.\n");
313  return AVERROR_INVALIDDATA;
314  }
315 
316  for (list_idx = 0; list_idx < nb_list; list_idx++) {
317  RefPicList rpl_tmp = { { 0 } };
318  RefPicList *rpl = &s->ref->refPicList[list_idx];
319 
320  /* The order of the elements is
321  * ST_CURR_BEF - ST_CURR_AFT - LT_CURR for the L0 and
322  * ST_CURR_AFT - ST_CURR_BEF - LT_CURR for the L1 */
323  int cand_lists[3] = { list_idx ? ST_CURR_AFT : ST_CURR_BEF,
324  list_idx ? ST_CURR_BEF : ST_CURR_AFT,
325  LT_CURR };
326 
327  /* concatenate the candidate lists for the current frame */
328  while (rpl_tmp.nb_refs < sh->nb_refs[list_idx]) {
329  for (i = 0; i < FF_ARRAY_ELEMS(cand_lists); i++) {
330  RefPicList *rps = &s->rps[cand_lists[i]];
331  for (j = 0; j < rps->nb_refs && rpl_tmp.nb_refs < MAX_REFS; j++) {
332  rpl_tmp.list[rpl_tmp.nb_refs] = rps->list[j];
333  rpl_tmp.ref[rpl_tmp.nb_refs] = rps->ref[j];
334  rpl_tmp.isLongTerm[rpl_tmp.nb_refs] = i == 2;
335  rpl_tmp.nb_refs++;
336  }
337  }
338  }
339 
340  /* reorder the references if necessary */
341  if (sh->rpl_modification_flag[list_idx]) {
342  for (i = 0; i < sh->nb_refs[list_idx]; i++) {
343  int idx = sh->list_entry_lx[list_idx][i];
344 
345  if (idx >= rpl_tmp.nb_refs) {
346  av_log(s->avctx, AV_LOG_ERROR, "Invalid reference index.\n");
347  return AVERROR_INVALIDDATA;
348  }
349 
350  rpl->list[i] = rpl_tmp.list[idx];
351  rpl->ref[i] = rpl_tmp.ref[idx];
352  rpl->isLongTerm[i] = rpl_tmp.isLongTerm[idx];
353  rpl->nb_refs++;
354  }
355  } else {
356  memcpy(rpl, &rpl_tmp, sizeof(*rpl));
357  rpl->nb_refs = FFMIN(rpl->nb_refs, sh->nb_refs[list_idx]);
358  }
359 
360  if (sh->collocated_list == list_idx &&
361  sh->collocated_ref_idx < rpl->nb_refs)
362  s->ref->collocated_ref = rpl->ref[sh->collocated_ref_idx];
363  }
364 
365  return 0;
366 }
367 
369 {
370  int i;
371  int LtMask = (1 << s->ps.sps->log2_max_poc_lsb) - 1;
372 
373  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
374  HEVCFrame *ref = &s->DPB[i];
375  if (ref->frame->buf[0] && (ref->sequence == s->seq_decode)) {
376  if ((ref->poc & LtMask) == poc)
377  return ref;
378  }
379  }
380 
381  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
382  HEVCFrame *ref = &s->DPB[i];
383  if (ref->frame->buf[0] && ref->sequence == s->seq_decode) {
384  if (ref->poc == poc || (ref->poc & LtMask) == poc)
385  return ref;
386  }
387  }
388 
389  if (s->nal_unit_type != NAL_CRA_NUT && !IS_BLA(s))
391  "Could not find ref with POC %d\n", poc);
392  return NULL;
393 }
394 
395 static void mark_ref(HEVCFrame *frame, int flag)
396 {
398  frame->flags |= flag;
399 }
400 
402 {
403  HEVCFrame *frame;
404  int i, x, y;
405 
406  frame = alloc_frame(s);
407  if (!frame)
408  return NULL;
409 
410  if (!s->avctx->hwaccel) {
411  if (!s->ps.sps->pixel_shift) {
412  for (i = 0; frame->frame->buf[i]; i++)
413  memset(frame->frame->buf[i]->data, 1 << (s->ps.sps->bit_depth - 1),
414  frame->frame->buf[i]->size);
415  } else {
416  for (i = 0; frame->frame->data[i]; i++)
417  for (y = 0; y < (s->ps.sps->height >> s->ps.sps->vshift[i]); y++)
418  for (x = 0; x < (s->ps.sps->width >> s->ps.sps->hshift[i]); x++) {
419  AV_WN16(frame->frame->data[i] + y * frame->frame->linesize[i] + 2 * x,
420  1 << (s->ps.sps->bit_depth - 1));
421  }
422  }
423  }
424 
425  frame->poc = poc;
426  frame->sequence = s->seq_decode;
427  frame->flags = 0;
428 
429  if (s->threads_type == FF_THREAD_FRAME)
430  ff_thread_report_progress(&frame->tf, INT_MAX, 0);
431 
432  return frame;
433 }
434 
435 /* add a reference with the given poc to the list and mark it as used in DPB */
437  int poc, int ref_flag)
438 {
439  HEVCFrame *ref = find_ref_idx(s, poc);
440 
441  if (ref == s->ref)
442  return AVERROR_INVALIDDATA;
443 
444  if (!ref) {
445  ref = generate_missing_ref(s, poc);
446  if (!ref)
447  return AVERROR(ENOMEM);
448  }
449 
450  list->list[list->nb_refs] = ref->poc;
451  list->ref[list->nb_refs] = ref;
452  list->nb_refs++;
453 
454  mark_ref(ref, ref_flag);
455  return 0;
456 }
457 
459 {
460  const ShortTermRPS *short_rps = s->sh.short_term_rps;
461  const LongTermRPS *long_rps = &s->sh.long_term_rps;
462  RefPicList *rps = s->rps;
463  int i, ret = 0;
464 
465  if (!short_rps) {
466  rps[0].nb_refs = rps[1].nb_refs = 0;
467  return 0;
468  }
469 
470  /* clear the reference flags on all frames except the current one */
471  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
472  HEVCFrame *frame = &s->DPB[i];
473 
474  if (frame == s->ref)
475  continue;
476 
477  mark_ref(frame, 0);
478  }
479 
480  for (i = 0; i < NB_RPS_TYPE; i++)
481  rps[i].nb_refs = 0;
482 
483  /* add the short refs */
484  for (i = 0; i < short_rps->num_delta_pocs; i++) {
485  int poc = s->poc + short_rps->delta_poc[i];
486  int list;
487 
488  if (!short_rps->used[i])
489  list = ST_FOLL;
490  else if (i < short_rps->num_negative_pics)
491  list = ST_CURR_BEF;
492  else
493  list = ST_CURR_AFT;
494 
495  ret = add_candidate_ref(s, &rps[list], poc, HEVC_FRAME_FLAG_SHORT_REF);
496  if (ret < 0)
497  goto fail;
498  }
499 
500  /* add the long refs */
501  for (i = 0; i < long_rps->nb_refs; i++) {
502  int poc = long_rps->poc[i];
503  int list = long_rps->used[i] ? LT_CURR : LT_FOLL;
504 
505  ret = add_candidate_ref(s, &rps[list], poc, HEVC_FRAME_FLAG_LONG_REF);
506  if (ret < 0)
507  goto fail;
508  }
509 
510 fail:
511  /* release any frames that are now unused */
512  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++)
513  ff_hevc_unref_frame(s, &s->DPB[i], 0);
514 
515  return ret;
516 }
517 
519 {
520  int max_poc_lsb = 1 << s->ps.sps->log2_max_poc_lsb;
521  int prev_poc_lsb = s->pocTid0 % max_poc_lsb;
522  int prev_poc_msb = s->pocTid0 - prev_poc_lsb;
523  int poc_msb;
524 
525  if (poc_lsb < prev_poc_lsb && prev_poc_lsb - poc_lsb >= max_poc_lsb / 2)
526  poc_msb = prev_poc_msb + max_poc_lsb;
527  else if (poc_lsb > prev_poc_lsb && poc_lsb - prev_poc_lsb > max_poc_lsb / 2)
528  poc_msb = prev_poc_msb - max_poc_lsb;
529  else
530  poc_msb = prev_poc_msb;
531 
532  // For BLA picture types, POCmsb is set to 0.
533  if (s->nal_unit_type == NAL_BLA_W_LP ||
536  poc_msb = 0;
537 
538  return poc_msb + poc_lsb;
539 }
540 
542 {
543  int ret = 0;
544  int i;
545  const ShortTermRPS *rps = s->sh.short_term_rps;
546  LongTermRPS *long_rps = &s->sh.long_term_rps;
547 
548  if (rps) {
549  for (i = 0; i < rps->num_negative_pics; i++)
550  ret += !!rps->used[i];
551  for (; i < rps->num_delta_pocs; i++)
552  ret += !!rps->used[i];
553  }
554 
555  if (long_rps) {
556  for (i = 0; i < long_rps->nb_refs; i++)
557  ret += !!long_rps->used[i];
558  }
559  return ret;
560 }
const HEVCPPS * pps
Definition: hevc.h:570
AVFrame * frame
Definition: hevc.h:720
#define NULL
Definition: coverity.c:32
const char * s
Definition: avisynth_c.h:768
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
Definition: hevc.h:127
void av_buffer_unref(AVBufferRef **buf)
Free a given reference and automatically free the buffer if there are no more references to it...
Definition: buffer.c:124
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2263
This structure describes decoded (raw) audio or video data.
Definition: frame.h:184
HEVCFrame * ref
Definition: hevc.h:831
Definition: hevc.h:668
int ctb_height
Definition: hevc.h:472
static void flush(AVCodecContext *avctx)
int max_dec_pic_buffering
Definition: hevc.h:419
int ff_hevc_set_new_ref(HEVCContext *s, AVFrame **frame, int poc)
Definition: hevc_refs.c:134
AVBufferRef * buf[AV_NUM_DATA_POINTERS]
AVBuffer references backing the data for this frame.
Definition: frame.h:363
const char * desc
Definition: nvenc.c:89
void * hwaccel_picture_private
Definition: hevc.h:736
#define MAX_REFS
Definition: hevc.h:41
uint8_t nb_refs
Definition: hevc.h:288
MvField * tab_mvf
Definition: hevc.h:722
int vshift[3]
Definition: hevc.h:483
void ff_hevc_flush_dpb(HEVCContext *s)
Drop all frames currently in DPB.
Definition: hevc_refs.c:74
int flag
Definition: cpu.c:34
int ff_hevc_frame_rps(HEVCContext *s)
Construct the reference picture sets for the current frame.
Definition: hevc_refs.c:458
unsigned int left_offset
Definition: hevc.h:303
int isLongTerm[MAX_REFS]
Definition: hevc.h:294
HEVCParamSets ps
Definition: hevc.h:818
static HEVCFrame * find_ref_idx(HEVCContext *s, int poc)
Definition: hevc_refs.c:368
struct HEVCFrame * ref[MAX_REFS]
Definition: hevc.h:292
int list[MAX_REFS]
Definition: hevc.h:293
int width
Definition: hevc.h:469
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
uint16_t seq_decode
Sequence counters for decoded and output frames, so that old frames are output first after a POC rese...
Definition: hevc.h:875
uint8_t threads_type
Definition: hevc.h:802
int pixel_shift
Definition: hevc.h:411
HEVCWindow output_window
Definition: hevc.h:406
static HEVCFrame * alloc_frame(HEVCContext *s)
Definition: hevc_refs.c:81
AVBufferPool * rpl_tab_pool
candidate references for the current frame
Definition: hevc.h:821
struct AVHWAccel * hwaccel
Hardware accelerator in use.
Definition: avcodec.h:2979
int nb_refs
Definition: hevc.h:295
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
struct HEVCSPS::@53 temporal_layer[MAX_SUB_LAYERS]
unsigned int slice_segment_addr
address (in raster order) of the first block in the current slice
Definition: hevc.h:577
void ff_hevc_unref_frame(HEVCContext *s, HEVCFrame *frame, int flags)
Definition: hevc_refs.c:31
unsigned int num_negative_pics
Definition: hevc.h:278
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
LongTermRPS long_term_rps
Definition: hevc.h:596
int poc[32]
Definition: hevc.h:286
Multithreading support functions.
int av_frame_ref(AVFrame *dst, const AVFrame *src)
Set up a new reference to the data described by the source frame.
Definition: frame.c:374
AVCodecContext * avctx
Definition: hevc.h:795
static AVFrame * frame
int ff_hevc_slice_rpl(HEVCContext *s)
Construct the reference picture list(s) for the current slice.
Definition: hevc_refs.c:298
ThreadFrame tf
Definition: hevc.h:721
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:318
uint8_t pic_output_flag
Definition: hevc.h:587
#define av_log(a,...)
uint8_t used[32]
Definition: hevc.h:287
int ctb_count
Definition: hevc.h:725
uint8_t no_output_of_prior_pics_flag
Definition: hevc.h:600
#define HEVC_FRAME_FLAG_LONG_REF
Definition: hevc.h:716
int slice_idx
number of the slice being currently decoded
Definition: hevc.h:835
static void mark_ref(HEVCFrame *frame, int flag)
Definition: hevc_refs.c:395
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
Definition: hevc.h:126
unsigned int log2_max_poc_lsb
Definition: hevc.h:414
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
Wrapper around release_buffer() frame-for multithreaded codecs.
AVBufferRef * rpl_tab_buf
Definition: hevc.h:732
#define AVERROR(e)
Definition: error.h:43
uint8_t rpl_modification_flag[2]
Definition: hevc.h:599
RefPicList * refPicList
Definition: hevc.h:723
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
unsigned int log2_ctb_size
Definition: hevc.h:455
int picture_struct
Definition: hevc.h:913
simple assert() macros that are a bit more flexible than ISO C assert().
const ShortTermRPS * short_term_rps
Definition: hevc.h:594
#define fail()
Definition: checkasm.h:82
uint16_t sequence
A sequence counter, so that old frames are output first after a POC reset.
Definition: hevc.h:742
uint8_t used[32]
Definition: hevc.h:282
int ff_hevc_compute_poc(HEVCContext *s, int poc_lsb)
Compute POC of the current frame and return it.
Definition: hevc_refs.c:518
const HEVCSPS * sps
Definition: hevc.h:569
AVBufferRef * tab_mvf_buf
Definition: hevc.h:731
int ff_hevc_output_frame(HEVCContext *s, AVFrame *out, int flush)
Find next frame in output order and put a reference to it in frame.
Definition: hevc_refs.c:170
#define HEVC_FRAME_FLAG_SHORT_REF
Definition: hevc.h:715
#define FF_THREAD_FRAME
Decode more than one frame at once.
Definition: avcodec.h:3101
#define FFMIN(a, b)
Definition: common.h:96
unsigned int top_offset
Definition: hevc.h:305
int hshift[3]
Definition: hevc.h:482
void ff_thread_report_progress(ThreadFrame *f, int n, int field)
Notify later decoding threads when part of their reference picture is ready.
int ctb_width
Definition: hevc.h:471
struct HEVCFrame * collocated_ref
Definition: hevc.h:727
int32_t delta_poc[32]
Definition: hevc.h:281
int height
Definition: hevc.h:470
uint16_t seq_output
Definition: hevc.h:876
static int add_candidate_ref(HEVCContext *s, RefPicList *list, int poc, int ref_flag)
Definition: hevc_refs.c:436
#define src
Definition: vp9dsp.c:530
#define FF_ARRAY_ELEMS(a)
static int init_slice_rpl(HEVCContext *s)
Definition: hevc_refs.c:280
#define IS_BLA(s)
Definition: hevc.h:87
HEVCFrame DPB[32]
Definition: hevc.h:832
static HEVCFrame * generate_missing_ref(HEVCContext *s, int poc)
Definition: hevc_refs.c:401
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:248
RefPicListTab ** rpl_tab
Definition: hevc.h:724
#define HEVC_FRAME_FLAG_OUTPUT
Definition: hevc.h:714
void ff_hevc_clear_refs(HEVCContext *s)
Mark all frames in DPB as unused for reference.
Definition: hevc_refs.c:65
int * ctb_addr_rs_to_ts
CtbAddrRSToTS.
Definition: hevc.h:554
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:215
int max_sub_layers
Definition: hevc.h:417
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
AVBufferRef * hwaccel_priv_buf
Definition: hevc.h:735
uint8_t * data
The data buffer.
Definition: buffer.h:89
AVBufferRef * av_buffer_allocz(int size)
Same as av_buffer_alloc(), except the returned buffer will be initialized to zero.
Definition: buffer.c:82
void ff_hevc_bump_frame(HEVCContext *s)
Definition: hevc_refs.c:240
int poc
Definition: hevc.h:726
int poc
Definition: hevc.h:833
enum NALUnitType nal_unit_type
Definition: hevc.h:829
HEVCWindow window
Definition: hevc.h:729
int pocTid0
Definition: hevc.h:834
uint8_t flags
A combination of HEVC_FRAME_FLAG_*.
Definition: hevc.h:747
int size
Size of data in bytes.
Definition: buffer.h:93
RefPicList * ff_hevc_get_ref_list(HEVCContext *s, HEVCFrame *ref, int x0, int y0)
Definition: hevc_refs.c:56
static int flags
Definition: cpu.c:47
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:198
common internal api header.
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:107
unsigned int nb_refs[2]
Definition: hevc.h:603
uint8_t collocated_list
Definition: hevc.h:611
AVBufferPool * tab_mvf_pool
Definition: hevc.h:820
int num_delta_pocs
Definition: hevc.h:279
RefPicList rps[5]
Definition: hevc.h:824
unsigned int collocated_ref_idx
Definition: hevc.h:613
int top_field_first
If the content is interlaced, is top field displayed first.
Definition: frame.h:323
int frame_priv_data_size
Size of per-frame hardware accelerator private data.
Definition: avcodec.h:3790
Definition: hevc.h:125
unsigned int list_entry_lx[2][32]
Definition: hevc.h:597
int ff_hevc_frame_nb_refs(HEVCContext *s)
Get the number of candidate references for the current frame.
Definition: hevc_refs.c:541
Definition: hevc.h:132
H2645Packet pkt
Definition: hevc.h:883
FILE * out
Definition: movenc.c:54
int num_reorder_pics
Definition: hevc.h:420
#define AV_WN16(p, v)
Definition: intreadwrite.h:372
AVBufferRef * av_buffer_pool_get(AVBufferPool *pool)
Allocate a new AVBuffer, reusing an old buffer from the pool when available.
Definition: buffer.c:380
AVBufferRef * rpl_buf
Definition: hevc.h:733
int bit_depth
Definition: hevc.h:410
enum SliceType slice_type
Definition: hevc.h:581
int depth
Number of bits in the component.
Definition: pixdesc.h:58
#define HEVC_FRAME_FLAG_BUMPING
Definition: hevc.h:717
SliceHeader sh
Definition: hevc.h:826
int no_rasl_output_flag
Definition: hevc.h:843
#define AV_GET_BUFFER_FLAG_REF
The decoder will keep a reference to the frame and may reuse it later.
Definition: avcodec.h:1343
for(j=16;j >0;--j)