Libav
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 Libav.
8  *
9  * Libav 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  * Libav 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 Libav; 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/pixdesc.h"
25 
26 #include "internal.h"
27 #include "thread.h"
28 #include "hevc.h"
29 
31 {
32  /* frame->frame can be NULL if context init failed */
33  if (!frame->frame || !frame->frame->buf[0])
34  return;
35 
36  frame->flags &= ~flags;
37  if (!frame->flags) {
38  ff_thread_release_buffer(s->avctx, &frame->tf);
39 
41  frame->tab_mvf = NULL;
42 
43  av_buffer_unref(&frame->rpl_buf);
45  frame->rpl_tab = NULL;
46  frame->refPicList = NULL;
47 
48  frame->collocated_ref = NULL;
49  }
50 }
51 
53 {
54  int x_cb = x0 >> s->sps->log2_ctb_size;
55  int y_cb = y0 >> s->sps->log2_ctb_size;
56  int pic_width_cb = (s->sps->width + (1 << s->sps->log2_ctb_size) - 1) >>
57  s->sps->log2_ctb_size;
58  int ctb_addr_ts = s->pps->ctb_addr_rs_to_ts[y_cb * pic_width_cb + x_cb];
59  return (RefPicList *)ref->rpl_tab[ctb_addr_ts];
60 }
61 
63 {
64  int i;
65  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++)
66  ff_hevc_unref_frame(s, &s->DPB[i],
69 }
70 
72 {
73  int i;
74  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++)
75  ff_hevc_unref_frame(s, &s->DPB[i], ~0);
76 }
77 
79 {
80  int i, j, ret;
81  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
82  HEVCFrame *frame = &s->DPB[i];
83  if (frame->frame->buf[0])
84  continue;
85 
86  ret = ff_thread_get_buffer(s->avctx, &frame->tf,
88  if (ret < 0)
89  return NULL;
90 
91  frame->rpl_buf = av_buffer_allocz(s->nb_nals * sizeof(RefPicListTab));
92  if (!frame->rpl_buf)
93  goto fail;
94 
96  if (!frame->tab_mvf_buf)
97  goto fail;
98  frame->tab_mvf = (MvField *)frame->tab_mvf_buf->data;
99 
101  if (!frame->rpl_tab_buf)
102  goto fail;
103  frame->rpl_tab = (RefPicListTab **)frame->rpl_tab_buf->data;
104  frame->ctb_count = s->sps->ctb_width * s->sps->ctb_height;
105  for (j = 0; j < frame->ctb_count; j++)
106  frame->rpl_tab[j] = (RefPicListTab *)frame->rpl_buf->data;
107 
108  return frame;
109 
110 fail:
111  ff_hevc_unref_frame(s, frame, ~0);
112  return NULL;
113  }
114  av_log(s->avctx, AV_LOG_ERROR, "Error allocating frame, DPB full.\n");
115  return NULL;
116 }
117 
118 int ff_hevc_set_new_ref(HEVCContext *s, AVFrame **frame, int poc)
119 {
120  HEVCFrame *ref;
121  int i;
122 
123  /* check that this POC doesn't already exist */
124  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
125  HEVCFrame *frame = &s->DPB[i];
126 
127  if (frame->frame->buf[0] && frame->sequence == s->seq_decode &&
128  frame->poc == poc) {
129  av_log(s->avctx, AV_LOG_ERROR, "Duplicate POC in a sequence: %d.\n",
130  poc);
131  return AVERROR_INVALIDDATA;
132  }
133  }
134 
135  ref = alloc_frame(s);
136  if (!ref)
137  return AVERROR(ENOMEM);
138 
139  *frame = ref->frame;
140  s->ref = ref;
141 
142  if (s->sh.pic_output_flag)
144  else
146 
147  ref->poc = poc;
148  ref->sequence = s->seq_decode;
149  ref->window = s->sps->output_window;
150 
151  return 0;
152 }
153 
155 {
156  do {
157  int nb_output = 0;
158  int min_poc = INT_MAX;
159  int i, min_idx, ret;
160 
161  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
162  HEVCFrame *frame = &s->DPB[i];
163  if ((frame->flags & HEVC_FRAME_FLAG_OUTPUT) &&
164  frame->sequence == s->seq_output) {
165  nb_output++;
166  if (frame->poc < min_poc) {
167  min_poc = frame->poc;
168  min_idx = i;
169  }
170  }
171  }
172 
173  /* wait for more frames before output */
174  if (!flush && s->seq_output == s->seq_decode && s->sps &&
175  nb_output <= s->sps->temporal_layer[s->sps->max_sub_layers - 1].num_reorder_pics)
176  return 0;
177 
178  if (nb_output) {
179  HEVCFrame *frame = &s->DPB[min_idx];
180  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->frame->format);
181  int pixel_shift;
182 
183  if (!desc)
184  return AVERROR_BUG;
185 
186  pixel_shift = desc->comp[0].depth_minus1 > 7;
187 
188  ret = av_frame_ref(out, frame->frame);
190  if (ret < 0)
191  return ret;
192 
193  for (i = 0; i < 3; i++) {
194  int hshift = (i > 0) ? desc->log2_chroma_w : 0;
195  int vshift = (i > 0) ? desc->log2_chroma_h : 0;
196  int off = ((frame->window.left_offset >> hshift) << pixel_shift) +
197  (frame->window.top_offset >> vshift) * out->linesize[i];
198  out->data[i] += off;
199  }
201  "Output frame with POC %d.\n", frame->poc);
202  return 1;
203  }
204 
205  if (s->seq_output != s->seq_decode)
206  s->seq_output = (s->seq_output + 1) & 0xff;
207  else
208  break;
209  } while (1);
210 
211  return 0;
212 }
213 
215 {
216  HEVCFrame *frame = s->ref;
217  int ctb_count = frame->ctb_count;
218  int ctb_addr_ts = s->pps->ctb_addr_rs_to_ts[s->sh.slice_segment_addr];
219  int i;
220 
221  if (s->slice_idx >= frame->rpl_buf->size / sizeof(RefPicListTab))
222  return AVERROR_INVALIDDATA;
223 
224  for (i = ctb_addr_ts; i < ctb_count; i++)
225  frame->rpl_tab[i] = (RefPicListTab *)frame->rpl_buf->data + s->slice_idx;
226 
227  frame->refPicList = (RefPicList *)frame->rpl_tab[ctb_addr_ts];
228 
229  return 0;
230 }
231 
233 {
234  SliceHeader *sh = &s->sh;
235 
236  uint8_t nb_list = sh->slice_type == B_SLICE ? 2 : 1;
237  uint8_t list_idx;
238  int i, j, ret;
239 
240  ret = init_slice_rpl(s);
241  if (ret < 0)
242  return ret;
243 
244  if (!(s->rps[ST_CURR_BEF].nb_refs + s->rps[ST_CURR_AFT].nb_refs +
245  s->rps[LT_CURR].nb_refs)) {
246  av_log(s->avctx, AV_LOG_ERROR, "Zero refs in the frame RPS.\n");
247  return AVERROR_INVALIDDATA;
248  }
249 
250  for (list_idx = 0; list_idx < nb_list; list_idx++) {
251  RefPicList rpl_tmp = { { 0 } };
252  RefPicList *rpl = &s->ref->refPicList[list_idx];
253 
254  /* The order of the elements is
255  * ST_CURR_BEF - ST_CURR_AFT - LT_CURR for the L0 and
256  * ST_CURR_AFT - ST_CURR_BEF - LT_CURR for the L1 */
257  int cand_lists[3] = { list_idx ? ST_CURR_AFT : ST_CURR_BEF,
258  list_idx ? ST_CURR_BEF : ST_CURR_AFT,
259  LT_CURR };
260 
261  /* concatenate the candidate lists for the current frame */
262  while (rpl_tmp.nb_refs < sh->nb_refs[list_idx]) {
263  for (i = 0; i < FF_ARRAY_ELEMS(cand_lists); i++) {
264  RefPicList *rps = &s->rps[cand_lists[i]];
265  for (j = 0; j < rps->nb_refs && rpl_tmp.nb_refs < MAX_REFS; j++) {
266  rpl_tmp.list[rpl_tmp.nb_refs] = rps->list[j];
267  rpl_tmp.ref[rpl_tmp.nb_refs] = rps->ref[j];
268  rpl_tmp.isLongTerm[rpl_tmp.nb_refs] = i == 2;
269  rpl_tmp.nb_refs++;
270  }
271  }
272  }
273 
274  /* reorder the references if necessary */
275  if (sh->rpl_modification_flag[list_idx]) {
276  for (i = 0; i < sh->nb_refs[list_idx]; i++) {
277  int idx = sh->list_entry_lx[list_idx][i];
278 
279  if (idx >= rpl_tmp.nb_refs) {
280  av_log(s->avctx, AV_LOG_ERROR, "Invalid reference index.\n");
281  return AVERROR_INVALIDDATA;
282  }
283 
284  rpl->list[i] = rpl_tmp.list[idx];
285  rpl->ref[i] = rpl_tmp.ref[idx];
286  rpl->isLongTerm[i] = rpl_tmp.isLongTerm[idx];
287  rpl->nb_refs++;
288  }
289  } else {
290  memcpy(rpl, &rpl_tmp, sizeof(*rpl));
291  rpl->nb_refs = FFMIN(rpl->nb_refs, sh->nb_refs[list_idx]);
292  }
293 
294  if (sh->collocated_list == list_idx &&
295  sh->collocated_ref_idx < rpl->nb_refs)
296  s->ref->collocated_ref = rpl->ref[sh->collocated_ref_idx];
297  }
298 
299  return 0;
300 }
301 
302 static HEVCFrame *find_ref_idx(HEVCContext *s, int poc)
303 {
304  int i;
305  int LtMask = (1 << s->sps->log2_max_poc_lsb) - 1;
306 
307  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
308  HEVCFrame *ref = &s->DPB[i];
309  if (ref->frame->buf[0] && (ref->sequence == s->seq_decode)) {
310  if ((ref->poc & LtMask) == poc)
311  return ref;
312  }
313  }
314 
315  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
316  HEVCFrame *ref = &s->DPB[i];
317  if (ref->frame->buf[0] && ref->sequence == s->seq_decode) {
318  if (ref->poc == poc || (ref->poc & LtMask) == poc)
319  return ref;
320  }
321  }
322 
324  "Could not find ref with POC %d\n", poc);
325  return NULL;
326 }
327 
328 static void mark_ref(HEVCFrame *frame, int flag)
329 {
331  frame->flags |= flag;
332 }
333 
335 {
336  HEVCFrame *frame;
337  int i, x, y;
338 
339  frame = alloc_frame(s);
340  if (!frame)
341  return NULL;
342 
343  if (!s->sps->pixel_shift) {
344  for (i = 0; frame->frame->buf[i]; i++)
345  memset(frame->frame->buf[i]->data, 1 << (s->sps->bit_depth - 1),
346  frame->frame->buf[i]->size);
347  } else {
348  for (i = 0; frame->frame->data[i]; i++)
349  for (y = 0; y < (s->sps->height >> s->sps->vshift[i]); y++)
350  for (x = 0; x < (s->sps->width >> s->sps->hshift[i]); x++) {
351  AV_WN16(frame->frame->data[i] + y * frame->frame->linesize[i] + 2 * x,
352  1 << (s->sps->bit_depth - 1));
353  }
354  }
355 
356  frame->poc = poc;
357  frame->sequence = s->seq_decode;
358  frame->flags = 0;
359 
360  ff_thread_report_progress(&frame->tf, INT_MAX, 0);
361 
362  return frame;
363 }
364 
365 /* add a reference with the given poc to the list and mark it as used in DPB */
367  int poc, int ref_flag)
368 {
369  HEVCFrame *ref = find_ref_idx(s, poc);
370 
371  if (ref == s->ref)
372  return AVERROR_INVALIDDATA;
373 
374  if (!ref) {
375  ref = generate_missing_ref(s, poc);
376  if (!ref)
377  return AVERROR(ENOMEM);
378  }
379 
380  list->list[list->nb_refs] = ref->poc;
381  list->ref[list->nb_refs] = ref;
382  list->nb_refs++;
383 
384  mark_ref(ref, ref_flag);
385  return 0;
386 }
387 
389 {
390  const ShortTermRPS *short_rps = s->sh.short_term_rps;
391  const LongTermRPS *long_rps = &s->sh.long_term_rps;
392  RefPicList *rps = s->rps;
393  int i, ret;
394 
395  if (!short_rps) {
396  rps[0].nb_refs = rps[1].nb_refs = 0;
397  return 0;
398  }
399 
400  /* clear the reference flags on all frames except the current one */
401  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
402  HEVCFrame *frame = &s->DPB[i];
403 
404  if (frame == s->ref)
405  continue;
406 
407  mark_ref(frame, 0);
408  }
409 
410  for (i = 0; i < NB_RPS_TYPE; i++)
411  rps[i].nb_refs = 0;
412 
413  /* add the short refs */
414  for (i = 0; i < short_rps->num_delta_pocs; i++) {
415  int poc = s->poc + short_rps->delta_poc[i];
416  int list;
417 
418  if (!short_rps->used[i])
419  list = ST_FOLL;
420  else if (i < short_rps->num_negative_pics)
421  list = ST_CURR_BEF;
422  else
423  list = ST_CURR_AFT;
424 
425  ret = add_candidate_ref(s, &rps[list], poc, HEVC_FRAME_FLAG_SHORT_REF);
426  if (ret < 0)
427  return ret;
428  }
429 
430  /* add the long refs */
431  for (i = 0; i < long_rps->nb_refs; i++) {
432  int poc = long_rps->poc[i];
433  int list = long_rps->used[i] ? LT_CURR : LT_FOLL;
434 
435  ret = add_candidate_ref(s, &rps[list], poc, HEVC_FRAME_FLAG_LONG_REF);
436  if (ret < 0)
437  return ret;
438  }
439 
440  /* release any frames that are now unused */
441  for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++)
442  ff_hevc_unref_frame(s, &s->DPB[i], 0);
443 
444  return 0;
445 }
446 
447 int ff_hevc_compute_poc(HEVCContext *s, int poc_lsb)
448 {
449  int max_poc_lsb = 1 << s->sps->log2_max_poc_lsb;
450  int prev_poc_lsb = s->pocTid0 % max_poc_lsb;
451  int prev_poc_msb = s->pocTid0 - prev_poc_lsb;
452  int poc_msb;
453 
454  if (poc_lsb < prev_poc_lsb && prev_poc_lsb - poc_lsb >= max_poc_lsb / 2)
455  poc_msb = prev_poc_msb + max_poc_lsb;
456  else if (poc_lsb > prev_poc_lsb && poc_lsb - prev_poc_lsb > max_poc_lsb / 2)
457  poc_msb = prev_poc_msb - max_poc_lsb;
458  else
459  poc_msb = prev_poc_msb;
460 
461  // For BLA picture types, POCmsb is set to 0.
462  if (s->nal_unit_type == NAL_BLA_W_LP ||
465  poc_msb = 0;
466 
467  return poc_msb + poc_lsb;
468 }
469 
471 {
472  int ret = 0;
473  int i;
474  const ShortTermRPS *rps = s->sh.short_term_rps;
475  LongTermRPS *long_rps = &s->sh.long_term_rps;
476 
477  if (rps) {
478  for (i = 0; i < rps->num_negative_pics; i++)
479  ret += !!rps->used[i];
480  for (; i < rps->num_delta_pocs; i++)
481  ret += !!rps->used[i];
482  }
483 
484  if (long_rps) {
485  for (i = 0; i < long_rps->nb_refs; i++)
486  ret += !!long_rps->used[i];
487  }
488  return ret;
489 }
AVFrame * frame
Definition: hevc.h:666
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:54
Definition: hevc.h:126
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:106
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:1599
This structure describes decoded (raw) audio or video data.
Definition: frame.h:135
HEVCFrame * ref
Definition: hevc.h:786
Definition: hevc.h:623
int ctb_height
Definition: hevc.h:449
int ff_hevc_set_new_ref(HEVCContext *s, AVFrame **frame, int poc)
Definition: hevc_refs.c:118
AVBufferRef * buf[AV_NUM_DATA_POINTERS]
AVBuffer references backing the data for this frame.
Definition: frame.h:393
#define MAX_REFS
Definition: hevc.h:42
uint8_t nb_refs
Definition: hevc.h:272
MvField * tab_mvf
Definition: hevc.h:668
int vshift[3]
Definition: hevc.h:459
void ff_hevc_flush_dpb(HEVCContext *s)
Drop all frames currently in DPB.
Definition: hevc_refs.c:71
int nb_nals
Definition: hevc.h:832
int ff_hevc_frame_rps(HEVCContext *s)
Construct the reference picture sets for the current frame.
Definition: hevc_refs.c:388
unsigned int left_offset
Definition: hevc.h:287
int isLongTerm[MAX_REFS]
Definition: hevc.h:278
#define FF_ARRAY_ELEMS(a)
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method !=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt) > 2) { ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc) { av_free(ac);return NULL;} return ac;} in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar) { ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar ? ac->channels :1;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_dlog(ac->avr, "%d samples - audio_convert: %s to %s (dithered)\", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> out
static HEVCFrame * find_ref_idx(HEVCContext *s, int poc)
Definition: hevc_refs.c:302
struct HEVCFrame * ref[MAX_REFS]
Definition: hevc.h:276
int list[MAX_REFS]
Definition: hevc.h:277
int width
Definition: hevc.h:446
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:80
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:828
int pixel_shift
Definition: hevc.h:395
HEVCWindow output_window
Definition: hevc.h:390
static HEVCFrame * alloc_frame(HEVCContext *s)
Definition: hevc_refs.c:78
AVBufferPool * rpl_tab_pool
candidate references for the current frame
Definition: hevc.h:776
int nb_refs
Definition: hevc.h:279
unsigned int slice_segment_addr
address (in raster order) of the first block in the current slice
Definition: hevc.h:532
void ff_hevc_unref_frame(HEVCContext *s, HEVCFrame *frame, int flags)
Definition: hevc_refs.c:30
unsigned int num_negative_pics
Definition: hevc.h:263
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:97
uint8_t
LongTermRPS long_term_rps
Definition: hevc.h:548
int poc[32]
Definition: hevc.h:270
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:188
AVCodecContext * avctx
Definition: hevc.h:754
int ff_hevc_slice_rpl(HEVCContext *s)
Construct the reference picture list(s) for the current slice.
Definition: hevc_refs.c:232
ThreadFrame tf
Definition: hevc.h:667
static int flags
Definition: log.c:44
uint8_t pic_output_flag
Definition: hevc.h:542
uint8_t used[32]
Definition: hevc.h:271
int ctb_count
Definition: hevc.h:671
struct HEVCSPS::@22 temporal_layer[MAX_SUB_LAYERS]
#define HEVC_FRAME_FLAG_LONG_REF
Definition: hevc.h:663
int slice_idx
number of the slice being currently decoded
Definition: hevc.h:790
static void mark_ref(HEVCFrame *frame, int flag)
Definition: hevc_refs.c:328
const HEVCSPS * sps
Definition: hevc.h:769
uint16_t depth_minus1
Number of bits in the component minus 1.
Definition: pixdesc.h:57
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:123
Definition: hevc.h:125
unsigned int log2_max_poc_lsb
Definition: hevc.h:398
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:89
void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
Wrapper around release_buffer() frame-for multithreaded codecs.
AVBufferRef * rpl_tab_buf
Definition: hevc.h:678
#define AVERROR(e)
Definition: error.h:43
uint8_t rpl_modification_flag[2]
Definition: hevc.h:551
RefPicList * refPicList
Definition: hevc.h:669
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:144
unsigned int log2_ctb_size
Definition: hevc.h:439
void av_log(void *avcl, int level, const char *fmt,...)
Definition: log.c:169
const ShortTermRPS * short_term_rps
Definition: hevc.h:547
uint16_t sequence
A sequence counter, so that old frames are output first after a POC reset.
Definition: hevc.h:685
uint8_t used[32]
Definition: hevc.h:266
const HEVCPPS * pps
Definition: hevc.h:770
int ff_hevc_compute_poc(HEVCContext *s, int poc_lsb)
Compute POC of the current frame and return it.
Definition: hevc_refs.c:447
AVBufferRef * tab_mvf_buf
Definition: hevc.h:677
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:154
#define HEVC_FRAME_FLAG_SHORT_REF
Definition: hevc.h:662
#define FFMIN(a, b)
Definition: common.h:57
unsigned int top_offset
Definition: hevc.h:289
int hshift[3]
Definition: hevc.h:458
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:448
struct HEVCFrame * collocated_ref
Definition: hevc.h:673
int32_t delta_poc[32]
Definition: hevc.h:265
int height
Definition: hevc.h:447
uint16_t seq_output
Definition: hevc.h:829
static int add_candidate_ref(HEVCContext *s, RefPicList *list, int poc, int ref_flag)
Definition: hevc_refs.c:366
static int init_slice_rpl(HEVCContext *s)
Definition: hevc_refs.c:214
HEVCFrame DPB[32]
Definition: hevc.h:787
static HEVCFrame * generate_missing_ref(HEVCContext *s, int poc)
Definition: hevc_refs.c:334
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:186
RefPicListTab ** rpl_tab
Definition: hevc.h:670
NULL
Definition: eval.c:55
#define HEVC_FRAME_FLAG_OUTPUT
Definition: hevc.h:661
void ff_hevc_clear_refs(HEVCContext *s)
Mark all frames in DPB as unused for reference.
Definition: hevc_refs.c:62
int * ctb_addr_rs_to_ts
CtbAddrRSToTS.
Definition: hevc.h:521
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:153
int max_sub_layers
Definition: hevc.h:401
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
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
#define AVERROR_BUG
Bug detected, please report the issue.
Definition: error.h:60
int poc
Definition: hevc.h:672
int poc
Definition: hevc.h:788
enum NALUnitType nal_unit_type
Definition: hevc.h:784
HEVCWindow window
Definition: hevc.h:675
int pocTid0
Definition: hevc.h:789
uint8_t flags
A combination of HEVC_FRAME_FLAG_*.
Definition: hevc.h:690
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:52
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:141
common internal api header.
static av_cold void flush(AVCodecContext *avctx)
Flush (reset) the frame ID after seeking.
Definition: alsdec.c:1797
unsigned int nb_refs[2]
Definition: hevc.h:555
uint8_t collocated_list
Definition: hevc.h:563
AVBufferPool * tab_mvf_pool
Definition: hevc.h:775
int num_delta_pocs
Definition: hevc.h:264
RefPicList rps[5]
Definition: hevc.h:779
unsigned int collocated_ref_idx
Definition: hevc.h:565
Definition: hevc.h:124
unsigned int list_entry_lx[2][32]
Definition: hevc.h:549
int ff_hevc_frame_nb_refs(HEVCContext *s)
Get the number of candidate references for the current frame.
Definition: hevc_refs.c:470
Definition: hevc.h:131
int num_reorder_pics
Definition: hevc.h:404
#define AV_WN16(p, v)
Definition: intreadwrite.h:334
AVBufferRef * av_buffer_pool_get(AVBufferPool *pool)
Allocate a new AVBuffer, reusing an old buffer from the pool when available.
Definition: buffer.c:285
AVBufferRef * rpl_buf
Definition: hevc.h:679
int bit_depth
Definition: hevc.h:394
enum SliceType slice_type
Definition: hevc.h:536
SliceHeader sh
Definition: hevc.h:781
#define AV_GET_BUFFER_FLAG_REF
The decoder will keep a reference to the frame and may reuse it later.
Definition: avcodec.h:850
for(j=16;j >0;--j)