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hevc_refs.c
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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 #include "hevcdec.h"
31 
33 {
34  /* frame->frame can be NULL if context init failed */
35  if (!frame->frame || !frame->frame->buf[0])
36  return;
37 
38  frame->flags &= ~flags;
39  if (!frame->flags) {
40  ff_thread_release_buffer(s->avctx, &frame->tf);
41 
43  frame->tab_mvf = NULL;
44 
45  av_buffer_unref(&frame->rpl_buf);
47  frame->rpl_tab = NULL;
48  frame->refPicList = NULL;
49 
50  frame->collocated_ref = NULL;
51 
54  }
55 }
56 
58 {
59  int x_cb = x0 >> s->ps.sps->log2_ctb_size;
60  int y_cb = y0 >> s->ps.sps->log2_ctb_size;
61  int pic_width_cb = s->ps.sps->ctb_width;
62  int ctb_addr_ts = s->ps.pps->ctb_addr_rs_to_ts[y_cb * pic_width_cb + x_cb];
63  return (RefPicList *)ref->rpl_tab[ctb_addr_ts];
64 }
65 
67 {
68  int i;
69  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++)
70  ff_hevc_unref_frame(s, &s->DPB[i],
73 }
74 
76 {
77  int i;
78  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++)
79  ff_hevc_unref_frame(s, &s->DPB[i], ~0);
80 }
81 
83 {
84  int i, j, ret;
85  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
86  HEVCFrame *frame = &s->DPB[i];
87  if (frame->frame->buf[0])
88  continue;
89 
90  ret = ff_thread_get_buffer(s->avctx, &frame->tf,
92  if (ret < 0)
93  return NULL;
94 
95  frame->rpl_buf = av_buffer_allocz(s->pkt.nb_nals * sizeof(RefPicListTab));
96  if (!frame->rpl_buf)
97  goto fail;
98 
100  if (!frame->tab_mvf_buf)
101  goto fail;
102  frame->tab_mvf = (MvField *)frame->tab_mvf_buf->data;
103 
105  if (!frame->rpl_tab_buf)
106  goto fail;
107  frame->rpl_tab = (RefPicListTab **)frame->rpl_tab_buf->data;
108  frame->ctb_count = s->ps.sps->ctb_width * s->ps.sps->ctb_height;
109  for (j = 0; j < frame->ctb_count; j++)
110  frame->rpl_tab[j] = (RefPicListTab *)frame->rpl_buf->data;
111 
114 
115  if (s->avctx->hwaccel) {
116  const AVHWAccel *hwaccel = s->avctx->hwaccel;
118  if (hwaccel->frame_priv_data_size) {
120  if (!frame->hwaccel_priv_buf)
121  goto fail;
123  }
124  }
125 
126  return frame;
127 fail:
128  ff_hevc_unref_frame(s, frame, ~0);
129  return NULL;
130  }
131  av_log(s->avctx, AV_LOG_ERROR, "Error allocating frame, DPB full.\n");
132  return NULL;
133 }
134 
136 {
137  HEVCFrame *ref;
138  int i;
139 
140  /* check that this POC doesn't already exist */
141  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
142  HEVCFrame *frame = &s->DPB[i];
143 
144  if (frame->frame->buf[0] && frame->sequence == s->seq_decode &&
145  frame->poc == poc) {
146  av_log(s->avctx, AV_LOG_ERROR, "Duplicate POC in a sequence: %d.\n",
147  poc);
148  return AVERROR_INVALIDDATA;
149  }
150  }
151 
152  ref = alloc_frame(s);
153  if (!ref)
154  return AVERROR(ENOMEM);
155 
156  *frame = ref->frame;
157  s->ref = ref;
158 
159  if (s->sh.pic_output_flag)
161  else
163 
164  ref->poc = poc;
165  ref->sequence = s->seq_decode;
166  ref->window = s->ps.sps->output_window;
167 
168  return 0;
169 }
170 
172 {
173  do {
174  int nb_output = 0;
175  int min_poc = INT_MAX;
176  int i, min_idx, ret;
177 
178  if (s->sh.no_output_of_prior_pics_flag == 1 && s->no_rasl_output_flag == 1) {
179  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
180  HEVCFrame *frame = &s->DPB[i];
181  if (!(frame->flags & HEVC_FRAME_FLAG_BUMPING) && frame->poc != s->poc &&
182  frame->sequence == s->seq_output) {
184  }
185  }
186  }
187 
188  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
189  HEVCFrame *frame = &s->DPB[i];
190  if ((frame->flags & HEVC_FRAME_FLAG_OUTPUT) &&
191  frame->sequence == s->seq_output) {
192  nb_output++;
193  if (frame->poc < min_poc || nb_output == 1) {
194  min_poc = frame->poc;
195  min_idx = i;
196  }
197  }
198  }
199 
200  /* wait for more frames before output */
201  if (!flush && s->seq_output == s->seq_decode && s->ps.sps &&
202  nb_output <= s->ps.sps->temporal_layer[s->ps.sps->max_sub_layers - 1].num_reorder_pics)
203  return 0;
204 
205  if (nb_output) {
206  HEVCFrame *frame = &s->DPB[min_idx];
207  AVFrame *dst = out;
208  AVFrame *src = frame->frame;
210  int pixel_shift = !!(desc->comp[0].depth > 8);
211 
212  ret = av_frame_ref(out, src);
213  if (frame->flags & HEVC_FRAME_FLAG_BUMPING)
215  else
217  if (ret < 0)
218  return ret;
219 
220  for (i = 0; i < 3; i++) {
221  int hshift = (i > 0) ? desc->log2_chroma_w : 0;
222  int vshift = (i > 0) ? desc->log2_chroma_h : 0;
223  int off = ((frame->window.left_offset >> hshift) << pixel_shift) +
224  (frame->window.top_offset >> vshift) * dst->linesize[i];
225  dst->data[i] += off;
226  }
228  "Output frame with POC %d.\n", frame->poc);
229  return 1;
230  }
231 
232  if (s->seq_output != s->seq_decode)
233  s->seq_output = (s->seq_output + 1) & 0xff;
234  else
235  break;
236  } while (1);
237 
238  return 0;
239 }
240 
242 {
243  int dpb = 0;
244  int min_poc = INT_MAX;
245  int i;
246 
247  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
248  HEVCFrame *frame = &s->DPB[i];
249  if ((frame->flags) &&
250  frame->sequence == s->seq_output &&
251  frame->poc != s->poc) {
252  dpb++;
253  }
254  }
255 
256  if (s->ps.sps && dpb >= s->ps.sps->temporal_layer[s->ps.sps->max_sub_layers - 1].max_dec_pic_buffering) {
257  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
258  HEVCFrame *frame = &s->DPB[i];
259  if ((frame->flags) &&
260  frame->sequence == s->seq_output &&
261  frame->poc != s->poc) {
262  if (frame->flags == HEVC_FRAME_FLAG_OUTPUT && frame->poc < min_poc) {
263  min_poc = frame->poc;
264  }
265  }
266  }
267 
268  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
269  HEVCFrame *frame = &s->DPB[i];
270  if (frame->flags & HEVC_FRAME_FLAG_OUTPUT &&
271  frame->sequence == s->seq_output &&
272  frame->poc <= min_poc) {
273  frame->flags |= HEVC_FRAME_FLAG_BUMPING;
274  }
275  }
276 
277  dpb--;
278  }
279 }
280 
282 {
283  HEVCFrame *frame = s->ref;
284  int ctb_count = frame->ctb_count;
285  int ctb_addr_ts = s->ps.pps->ctb_addr_rs_to_ts[s->sh.slice_segment_addr];
286  int i;
287 
288  if (s->slice_idx >= frame->rpl_buf->size / sizeof(RefPicListTab))
289  return AVERROR_INVALIDDATA;
290 
291  for (i = ctb_addr_ts; i < ctb_count; i++)
292  frame->rpl_tab[i] = (RefPicListTab *)frame->rpl_buf->data + s->slice_idx;
293 
294  frame->refPicList = (RefPicList *)frame->rpl_tab[ctb_addr_ts];
295 
296  return 0;
297 }
298 
300 {
301  SliceHeader *sh = &s->sh;
302 
303  uint8_t nb_list = sh->slice_type == HEVC_SLICE_B ? 2 : 1;
304  uint8_t list_idx;
305  int i, j, ret;
306 
307  ret = init_slice_rpl(s);
308  if (ret < 0)
309  return ret;
310 
311  if (!(s->rps[ST_CURR_BEF].nb_refs + s->rps[ST_CURR_AFT].nb_refs +
312  s->rps[LT_CURR].nb_refs)) {
313  av_log(s->avctx, AV_LOG_ERROR, "Zero refs in the frame RPS.\n");
314  return AVERROR_INVALIDDATA;
315  }
316 
317  for (list_idx = 0; list_idx < nb_list; list_idx++) {
318  RefPicList rpl_tmp = { { 0 } };
319  RefPicList *rpl = &s->ref->refPicList[list_idx];
320 
321  /* The order of the elements is
322  * ST_CURR_BEF - ST_CURR_AFT - LT_CURR for the L0 and
323  * ST_CURR_AFT - ST_CURR_BEF - LT_CURR for the L1 */
324  int cand_lists[3] = { list_idx ? ST_CURR_AFT : ST_CURR_BEF,
325  list_idx ? ST_CURR_BEF : ST_CURR_AFT,
326  LT_CURR };
327 
328  /* concatenate the candidate lists for the current frame */
329  while (rpl_tmp.nb_refs < sh->nb_refs[list_idx]) {
330  for (i = 0; i < FF_ARRAY_ELEMS(cand_lists); i++) {
331  RefPicList *rps = &s->rps[cand_lists[i]];
332  for (j = 0; j < rps->nb_refs && rpl_tmp.nb_refs < HEVC_MAX_REFS; j++) {
333  rpl_tmp.list[rpl_tmp.nb_refs] = rps->list[j];
334  rpl_tmp.ref[rpl_tmp.nb_refs] = rps->ref[j];
335  rpl_tmp.isLongTerm[rpl_tmp.nb_refs] = i == 2;
336  rpl_tmp.nb_refs++;
337  }
338  }
339  }
340 
341  /* reorder the references if necessary */
342  if (sh->rpl_modification_flag[list_idx]) {
343  for (i = 0; i < sh->nb_refs[list_idx]; i++) {
344  int idx = sh->list_entry_lx[list_idx][i];
345 
346  if (idx >= rpl_tmp.nb_refs) {
347  av_log(s->avctx, AV_LOG_ERROR, "Invalid reference index.\n");
348  return AVERROR_INVALIDDATA;
349  }
350 
351  rpl->list[i] = rpl_tmp.list[idx];
352  rpl->ref[i] = rpl_tmp.ref[idx];
353  rpl->isLongTerm[i] = rpl_tmp.isLongTerm[idx];
354  rpl->nb_refs++;
355  }
356  } else {
357  memcpy(rpl, &rpl_tmp, sizeof(*rpl));
358  rpl->nb_refs = FFMIN(rpl->nb_refs, sh->nb_refs[list_idx]);
359  }
360 
361  if (sh->collocated_list == list_idx &&
362  sh->collocated_ref_idx < rpl->nb_refs)
363  s->ref->collocated_ref = rpl->ref[sh->collocated_ref_idx];
364  }
365 
366  return 0;
367 }
368 
370 {
371  int i;
372  int LtMask = (1 << s->ps.sps->log2_max_poc_lsb) - 1;
373 
374  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
375  HEVCFrame *ref = &s->DPB[i];
376  if (ref->frame->buf[0] && (ref->sequence == s->seq_decode)) {
377  if ((ref->poc & LtMask) == poc)
378  return ref;
379  }
380  }
381 
382  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
383  HEVCFrame *ref = &s->DPB[i];
384  if (ref->frame->buf[0] && ref->sequence == s->seq_decode) {
385  if (ref->poc == poc || (ref->poc & LtMask) == poc)
386  return ref;
387  }
388  }
389 
390  if (s->nal_unit_type != HEVC_NAL_CRA_NUT && !IS_BLA(s))
392  "Could not find ref with POC %d\n", poc);
393  return NULL;
394 }
395 
396 static void mark_ref(HEVCFrame *frame, int flag)
397 {
399  frame->flags |= flag;
400 }
401 
403 {
404  HEVCFrame *frame;
405  int i, x, y;
406 
407  frame = alloc_frame(s);
408  if (!frame)
409  return NULL;
410 
411  if (!s->avctx->hwaccel) {
412  if (!s->ps.sps->pixel_shift) {
413  for (i = 0; frame->frame->buf[i]; i++)
414  memset(frame->frame->buf[i]->data, 1 << (s->ps.sps->bit_depth - 1),
415  frame->frame->buf[i]->size);
416  } else {
417  for (i = 0; frame->frame->data[i]; i++)
418  for (y = 0; y < (s->ps.sps->height >> s->ps.sps->vshift[i]); y++)
419  for (x = 0; x < (s->ps.sps->width >> s->ps.sps->hshift[i]); x++) {
420  AV_WN16(frame->frame->data[i] + y * frame->frame->linesize[i] + 2 * x,
421  1 << (s->ps.sps->bit_depth - 1));
422  }
423  }
424  }
425 
426  frame->poc = poc;
427  frame->sequence = s->seq_decode;
428  frame->flags = 0;
429 
430  if (s->threads_type == FF_THREAD_FRAME)
431  ff_thread_report_progress(&frame->tf, INT_MAX, 0);
432 
433  return frame;
434 }
435 
436 /* add a reference with the given poc to the list and mark it as used in DPB */
438  int poc, int ref_flag)
439 {
440  HEVCFrame *ref = find_ref_idx(s, poc);
441 
442  if (ref == s->ref)
443  return AVERROR_INVALIDDATA;
444 
445  if (!ref) {
446  ref = generate_missing_ref(s, poc);
447  if (!ref)
448  return AVERROR(ENOMEM);
449  }
450 
451  list->list[list->nb_refs] = ref->poc;
452  list->ref[list->nb_refs] = ref;
453  list->nb_refs++;
454 
455  mark_ref(ref, ref_flag);
456  return 0;
457 }
458 
460 {
461  const ShortTermRPS *short_rps = s->sh.short_term_rps;
462  const LongTermRPS *long_rps = &s->sh.long_term_rps;
463  RefPicList *rps = s->rps;
464  int i, ret = 0;
465 
466  if (!short_rps) {
467  rps[0].nb_refs = rps[1].nb_refs = 0;
468  return 0;
469  }
470 
471  /* clear the reference flags on all frames except the current one */
472  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
473  HEVCFrame *frame = &s->DPB[i];
474 
475  if (frame == s->ref)
476  continue;
477 
478  mark_ref(frame, 0);
479  }
480 
481  for (i = 0; i < NB_RPS_TYPE; i++)
482  rps[i].nb_refs = 0;
483 
484  /* add the short refs */
485  for (i = 0; i < short_rps->num_delta_pocs; i++) {
486  int poc = s->poc + short_rps->delta_poc[i];
487  int list;
488 
489  if (!short_rps->used[i])
490  list = ST_FOLL;
491  else if (i < short_rps->num_negative_pics)
492  list = ST_CURR_BEF;
493  else
494  list = ST_CURR_AFT;
495 
496  ret = add_candidate_ref(s, &rps[list], poc, HEVC_FRAME_FLAG_SHORT_REF);
497  if (ret < 0)
498  goto fail;
499  }
500 
501  /* add the long refs */
502  for (i = 0; i < long_rps->nb_refs; i++) {
503  int poc = long_rps->poc[i];
504  int list = long_rps->used[i] ? LT_CURR : LT_FOLL;
505 
506  ret = add_candidate_ref(s, &rps[list], poc, HEVC_FRAME_FLAG_LONG_REF);
507  if (ret < 0)
508  goto fail;
509  }
510 
511 fail:
512  /* release any frames that are now unused */
513  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++)
514  ff_hevc_unref_frame(s, &s->DPB[i], 0);
515 
516  return ret;
517 }
518 
520 {
521  int max_poc_lsb = 1 << s->ps.sps->log2_max_poc_lsb;
522  int prev_poc_lsb = s->pocTid0 % max_poc_lsb;
523  int prev_poc_msb = s->pocTid0 - prev_poc_lsb;
524  int poc_msb;
525 
526  if (poc_lsb < prev_poc_lsb && prev_poc_lsb - poc_lsb >= max_poc_lsb / 2)
527  poc_msb = prev_poc_msb + max_poc_lsb;
528  else if (poc_lsb > prev_poc_lsb && poc_lsb - prev_poc_lsb > max_poc_lsb / 2)
529  poc_msb = prev_poc_msb - max_poc_lsb;
530  else
531  poc_msb = prev_poc_msb;
532 
533  // For BLA picture types, POCmsb is set to 0.
534  if (s->nal_unit_type == HEVC_NAL_BLA_W_LP ||
537  poc_msb = 0;
538 
539  return poc_msb + poc_lsb;
540 }
541 
543 {
544  int ret = 0;
545  int i;
546  const ShortTermRPS *rps = s->sh.short_term_rps;
547  LongTermRPS *long_rps = &s->sh.long_term_rps;
548 
549  if (rps) {
550  for (i = 0; i < rps->num_negative_pics; i++)
551  ret += !!rps->used[i];
552  for (; i < rps->num_delta_pocs; i++)
553  ret += !!rps->used[i];
554  }
555 
556  if (long_rps) {
557  for (i = 0; i < long_rps->nb_refs; i++)
558  ret += !!long_rps->used[i];
559  }
560  return ret;
561 }
const HEVCPPS * pps
Definition: hevc_ps.h:319
AVFrame * frame
Definition: hevcdec.h:394
#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
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:125
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2333
This structure describes decoded (raw) audio or video data.
Definition: frame.h:187
HEVCFrame * ref
Definition: hevcdec.h:505
int ctb_height
Definition: hevc_ps.h:215
static void flush(AVCodecContext *avctx)
int max_dec_pic_buffering
Definition: hevc_ps.h:162
int ff_hevc_set_new_ref(HEVCContext *s, AVFrame **frame, int poc)
Definition: hevc_refs.c:135
AVBufferRef * buf[AV_NUM_DATA_POINTERS]
AVBuffer references backing the data for this frame.
Definition: frame.h:370
const char * desc
Definition: nvenc.c:60
void * hwaccel_picture_private
Definition: hevcdec.h:410
uint8_t nb_refs
Definition: hevcdec.h:233
MvField * tab_mvf
Definition: hevcdec.h:396
int vshift[3]
Definition: hevc_ps.h:226
void ff_hevc_flush_dpb(HEVCContext *s)
Drop all frames currently in DPB.
Definition: hevc_refs.c:75
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:459
unsigned int left_offset
Definition: hevc_ps.h:43
HEVCParamSets ps
Definition: hevcdec.h:492
static HEVCFrame * find_ref_idx(HEVCContext *s, int poc)
Definition: hevc_refs.c:369
#define src
Definition: vp8dsp.c:254
int width
Definition: hevc_ps.h:212
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: hevcdec.h:549
uint8_t threads_type
Definition: hevcdec.h:476
int pixel_shift
Definition: hevc_ps.h:154
HEVCWindow output_window
Definition: hevc_ps.h:149
static HEVCFrame * alloc_frame(HEVCContext *s)
Definition: hevc_refs.c:82
AVBufferPool * rpl_tab_pool
candidate references for the current frame
Definition: hevcdec.h:495
struct AVHWAccel * hwaccel
Hardware accelerator in use.
Definition: avcodec.h:3042
int nb_refs
Definition: hevcdec.h:240
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
unsigned int slice_segment_addr
address (in raster order) of the first block in the current slice
Definition: hevcdec.h:251
void ff_hevc_unref_frame(HEVCContext *s, HEVCFrame *frame, int flags)
Definition: hevc_refs.c:32
enum HEVCSliceType slice_type
Definition: hevcdec.h:255
unsigned int num_negative_pics
Definition: hevc_ps.h:35
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
enum HEVCNALUnitType nal_unit_type
Definition: hevcdec.h:503
LongTermRPS long_term_rps
Definition: hevcdec.h:270
int poc[32]
Definition: hevcdec.h:231
struct HEVCFrame * ref[HEVC_MAX_REFS]
Definition: hevcdec.h:237
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:388
AVCodecContext * avctx
Definition: hevcdec.h:469
static AVFrame * frame
int ff_hevc_slice_rpl(HEVCContext *s)
Construct the reference picture list(s) for the current slice.
Definition: hevc_refs.c:299
ThreadFrame tf
Definition: hevcdec.h:395
static int flags
Definition: log.c:57
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:325
uint8_t pic_output_flag
Definition: hevcdec.h:261
#define av_log(a,...)
uint8_t used[32]
Definition: hevcdec.h:232
int ctb_count
Definition: hevcdec.h:399
uint8_t no_output_of_prior_pics_flag
Definition: hevcdec.h:274
int slice_idx
number of the slice being currently decoded
Definition: hevcdec.h:509
static void mark_ref(HEVCFrame *frame, int flag)
Definition: hevc_refs.c:396
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
unsigned int log2_max_poc_lsb
Definition: hevc_ps.h:157
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.
#define HEVC_FRAME_FLAG_LONG_REF
Definition: hevcdec.h:390
AVBufferRef * rpl_tab_buf
Definition: hevcdec.h:406
#define AVERROR(e)
Definition: error.h:43
uint8_t rpl_modification_flag[2]
Definition: hevcdec.h:273
RefPicList * refPicList
Definition: hevcdec.h:397
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
unsigned int log2_ctb_size
Definition: hevc_ps.h:198
int picture_struct
Definition: hevcdec.h:587
simple assert() macros that are a bit more flexible than ISO C assert().
const ShortTermRPS * short_term_rps
Definition: hevcdec.h:268
#define HEVC_FRAME_FLAG_SHORT_REF
Definition: hevcdec.h:389
#define fail()
Definition: checkasm.h:89
uint16_t sequence
A sequence counter, so that old frames are output first after a POC reset.
Definition: hevcdec.h:416
#define HEVC_FRAME_FLAG_OUTPUT
Definition: hevcdec.h:388
uint8_t used[32]
Definition: hevc_ps.h:39
int ff_hevc_compute_poc(HEVCContext *s, int poc_lsb)
Compute POC of the current frame and return it.
Definition: hevc_refs.c:519
const HEVCSPS * sps
Definition: hevc_ps.h:318
#define HEVC_FRAME_FLAG_BUMPING
Definition: hevcdec.h:391
AVBufferRef * tab_mvf_buf
Definition: hevcdec.h:405
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:171
#define FF_THREAD_FRAME
Decode more than one frame at once.
Definition: avcodec.h:3162
#define FFMIN(a, b)
Definition: common.h:96
unsigned int top_offset
Definition: hevc_ps.h:45
int hshift[3]
Definition: hevc_ps.h:225
struct HEVCSPS::@67 temporal_layer[HEVC_MAX_SUB_LAYERS]
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_ps.h:214
struct HEVCFrame * collocated_ref
Definition: hevcdec.h:401
int32_t delta_poc[32]
Definition: hevc_ps.h:38
int height
Definition: hevc_ps.h:213
uint16_t seq_output
Definition: hevcdec.h:550
static int add_candidate_ref(HEVCContext *s, RefPicList *list, int poc, int ref_flag)
Definition: hevc_refs.c:437
#define IS_BLA(s)
Definition: hevcdec.h:77
#define FF_ARRAY_ELEMS(a)
static int init_slice_rpl(HEVCContext *s)
Definition: hevc_refs.c:281
HEVCFrame DPB[32]
Definition: hevcdec.h:506
static HEVCFrame * generate_missing_ref(HEVCContext *s, int poc)
Definition: hevc_refs.c:402
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:251
RefPicListTab ** rpl_tab
Definition: hevcdec.h:398
void ff_hevc_clear_refs(HEVCContext *s)
Mark all frames in DPB as unused for reference.
Definition: hevc_refs.c:66
int * ctb_addr_rs_to_ts
CtbAddrRSToTS.
Definition: hevc_ps.h:300
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:218
int max_sub_layers
Definition: hevc_ps.h:160
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: hevcdec.h:409
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:83
void ff_hevc_bump_frame(HEVCContext *s)
Definition: hevc_refs.c:241
int poc
Definition: hevcdec.h:400
HEVCWindow window
Definition: hevcdec.h:403
int pocTid0
Definition: hevcdec.h:508
uint8_t flags
A combination of HEVC_FRAME_FLAG_*.
Definition: hevcdec.h:421
int size
Size of data in bytes.
Definition: buffer.h:93
int list[HEVC_MAX_REFS]
Definition: hevcdec.h:238
RefPicList * ff_hevc_get_ref_list(HEVCContext *s, HEVCFrame *ref, int x0, int y0)
Definition: hevc_refs.c:57
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:201
common internal api header.
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:107
unsigned int nb_refs[2]
Definition: hevcdec.h:277
uint8_t collocated_list
Definition: hevcdec.h:285
AVBufferPool * tab_mvf_pool
Definition: hevcdec.h:494
int num_delta_pocs
Definition: hevc_ps.h:36
RefPicList rps[5]
Definition: hevcdec.h:498
unsigned int collocated_ref_idx
Definition: hevcdec.h:287
int top_field_first
If the content is interlaced, is top field displayed first.
Definition: frame.h:330
int frame_priv_data_size
Size of per-frame hardware accelerator private data.
Definition: avcodec.h:3888
unsigned int list_entry_lx[2][32]
Definition: hevcdec.h:271
int ff_hevc_frame_nb_refs(HEVCContext *s)
Get the number of candidate references for the current frame.
Definition: hevc_refs.c:542
H2645Packet pkt
Definition: hevcdec.h:557
FILE * out
Definition: movenc.c:54
int num_reorder_pics
Definition: hevc_ps.h:163
#define AV_WN16(p, v)
Definition: intreadwrite.h:377
AVBufferRef * av_buffer_pool_get(AVBufferPool *pool)
Allocate a new AVBuffer, reusing an old buffer from the pool when available.
Definition: buffer.c:334
AVBufferRef * rpl_buf
Definition: hevcdec.h:407
int bit_depth
Definition: hevc_ps.h:153
#define HEVC_MAX_REFS
Definition: hevc.h:71
int depth
Number of bits in the component.
Definition: pixdesc.h:58
SliceHeader sh
Definition: hevcdec.h:500
int no_rasl_output_flag
Definition: hevcdec.h:517
#define AV_GET_BUFFER_FLAG_REF
The decoder will keep a reference to the frame and may reuse it later.
Definition: avcodec.h:1389
for(j=16;j >0;--j)
int isLongTerm[HEVC_MAX_REFS]
Definition: hevcdec.h:239