FFmpeg  4.4
cbs_av1.c
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include "libavutil/avassert.h"
20 #include "libavutil/opt.h"
21 #include "libavutil/pixfmt.h"
22 
23 #include "cbs.h"
24 #include "cbs_internal.h"
25 #include "cbs_av1.h"
26 #include "internal.h"
27 
28 
30  const char *name, uint32_t *write_to,
31  uint32_t range_min, uint32_t range_max)
32 {
33  uint32_t zeroes, bits_value, value;
34  int position;
35 
36  if (ctx->trace_enable)
37  position = get_bits_count(gbc);
38 
39  zeroes = 0;
40  while (1) {
41  if (get_bits_left(gbc) < 1) {
42  av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid uvlc code at "
43  "%s: bitstream ended.\n", name);
44  return AVERROR_INVALIDDATA;
45  }
46 
47  if (get_bits1(gbc))
48  break;
49  ++zeroes;
50  }
51 
52  if (zeroes >= 32) {
53  value = MAX_UINT_BITS(32);
54  } else {
55  if (get_bits_left(gbc) < zeroes) {
56  av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid uvlc code at "
57  "%s: bitstream ended.\n", name);
58  return AVERROR_INVALIDDATA;
59  }
60 
61  bits_value = get_bits_long(gbc, zeroes);
62  value = bits_value + (UINT32_C(1) << zeroes) - 1;
63  }
64 
65  if (ctx->trace_enable) {
66  char bits[65];
67  int i, j, k;
68 
69  if (zeroes >= 32) {
70  while (zeroes > 32) {
71  k = FFMIN(zeroes - 32, 32);
72  for (i = 0; i < k; i++)
73  bits[i] = '0';
74  bits[i] = 0;
76  NULL, bits, 0);
77  zeroes -= k;
78  position += k;
79  }
80  }
81 
82  for (i = 0; i < zeroes; i++)
83  bits[i] = '0';
84  bits[i++] = '1';
85 
86  if (zeroes < 32) {
87  for (j = 0; j < zeroes; j++)
88  bits[i++] = (bits_value >> (zeroes - j - 1) & 1) ? '1' : '0';
89  }
90 
91  bits[i] = 0;
93  NULL, bits, value);
94  }
95 
96  if (value < range_min || value > range_max) {
97  av_log(ctx->log_ctx, AV_LOG_ERROR, "%s out of range: "
98  "%"PRIu32", but must be in [%"PRIu32",%"PRIu32"].\n",
99  name, value, range_min, range_max);
100  return AVERROR_INVALIDDATA;
101  }
102 
103  *write_to = value;
104  return 0;
105 }
106 
108  const char *name, uint32_t value,
109  uint32_t range_min, uint32_t range_max)
110 {
111  uint32_t v;
112  int position, zeroes;
113 
114  if (value < range_min || value > range_max) {
115  av_log(ctx->log_ctx, AV_LOG_ERROR, "%s out of range: "
116  "%"PRIu32", but must be in [%"PRIu32",%"PRIu32"].\n",
117  name, value, range_min, range_max);
118  return AVERROR_INVALIDDATA;
119  }
120 
121  if (ctx->trace_enable)
122  position = put_bits_count(pbc);
123 
124  zeroes = av_log2(value + 1);
125  v = value - (1U << zeroes) + 1;
126  put_bits(pbc, zeroes, 0);
127  put_bits(pbc, 1, 1);
128  put_bits(pbc, zeroes, v);
129 
130  if (ctx->trace_enable) {
131  char bits[65];
132  int i, j;
133  i = 0;
134  for (j = 0; j < zeroes; j++)
135  bits[i++] = '0';
136  bits[i++] = '1';
137  for (j = 0; j < zeroes; j++)
138  bits[i++] = (v >> (zeroes - j - 1) & 1) ? '1' : '0';
139  bits[i++] = 0;
141  bits, value);
142  }
143 
144  return 0;
145 }
146 
148  const char *name, uint64_t *write_to)
149 {
150  uint64_t value;
151  int position, err, i;
152 
153  if (ctx->trace_enable)
154  position = get_bits_count(gbc);
155 
156  value = 0;
157  for (i = 0; i < 8; i++) {
158  int subscript[2] = { 1, i };
159  uint32_t byte;
160  err = ff_cbs_read_unsigned(ctx, gbc, 8, "leb128_byte[i]", subscript,
161  &byte, 0x00, 0xff);
162  if (err < 0)
163  return err;
164 
165  value |= (uint64_t)(byte & 0x7f) << (i * 7);
166  if (!(byte & 0x80))
167  break;
168  }
169 
170  if (value > UINT32_MAX)
171  return AVERROR_INVALIDDATA;
172 
173  if (ctx->trace_enable)
174  ff_cbs_trace_syntax_element(ctx, position, name, NULL, "", value);
175 
176  *write_to = value;
177  return 0;
178 }
179 
181  const char *name, uint64_t value)
182 {
183  int position, err, len, i;
184  uint8_t byte;
185 
186  len = (av_log2(value) + 7) / 7;
187 
188  if (ctx->trace_enable)
189  position = put_bits_count(pbc);
190 
191  for (i = 0; i < len; i++) {
192  int subscript[2] = { 1, i };
193 
194  byte = value >> (7 * i) & 0x7f;
195  if (i < len - 1)
196  byte |= 0x80;
197 
198  err = ff_cbs_write_unsigned(ctx, pbc, 8, "leb128_byte[i]", subscript,
199  byte, 0x00, 0xff);
200  if (err < 0)
201  return err;
202  }
203 
204  if (ctx->trace_enable)
205  ff_cbs_trace_syntax_element(ctx, position, name, NULL, "", value);
206 
207  return 0;
208 }
209 
211  uint32_t n, const char *name,
212  const int *subscripts, uint32_t *write_to)
213 {
214  uint32_t m, v, extra_bit, value;
215  int position, w;
216 
217  av_assert0(n > 0);
218 
219  if (ctx->trace_enable)
220  position = get_bits_count(gbc);
221 
222  w = av_log2(n) + 1;
223  m = (1 << w) - n;
224 
225  if (get_bits_left(gbc) < w) {
226  av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid non-symmetric value at "
227  "%s: bitstream ended.\n", name);
228  return AVERROR_INVALIDDATA;
229  }
230 
231  if (w - 1 > 0)
232  v = get_bits(gbc, w - 1);
233  else
234  v = 0;
235 
236  if (v < m) {
237  value = v;
238  } else {
239  extra_bit = get_bits1(gbc);
240  value = (v << 1) - m + extra_bit;
241  }
242 
243  if (ctx->trace_enable) {
244  char bits[33];
245  int i;
246  for (i = 0; i < w - 1; i++)
247  bits[i] = (v >> i & 1) ? '1' : '0';
248  if (v >= m)
249  bits[i++] = extra_bit ? '1' : '0';
250  bits[i] = 0;
251 
253  name, subscripts, bits, value);
254  }
255 
256  *write_to = value;
257  return 0;
258 }
259 
261  uint32_t n, const char *name,
262  const int *subscripts, uint32_t value)
263 {
264  uint32_t w, m, v, extra_bit;
265  int position;
266 
267  if (value > n) {
268  av_log(ctx->log_ctx, AV_LOG_ERROR, "%s out of range: "
269  "%"PRIu32", but must be in [0,%"PRIu32"].\n",
270  name, value, n);
271  return AVERROR_INVALIDDATA;
272  }
273 
274  if (ctx->trace_enable)
275  position = put_bits_count(pbc);
276 
277  w = av_log2(n) + 1;
278  m = (1 << w) - n;
279 
280  if (put_bits_left(pbc) < w)
281  return AVERROR(ENOSPC);
282 
283  if (value < m) {
284  v = value;
285  put_bits(pbc, w - 1, v);
286  } else {
287  v = m + ((value - m) >> 1);
288  extra_bit = (value - m) & 1;
289  put_bits(pbc, w - 1, v);
290  put_bits(pbc, 1, extra_bit);
291  }
292 
293  if (ctx->trace_enable) {
294  char bits[33];
295  int i;
296  for (i = 0; i < w - 1; i++)
297  bits[i] = (v >> i & 1) ? '1' : '0';
298  if (value >= m)
299  bits[i++] = extra_bit ? '1' : '0';
300  bits[i] = 0;
301 
303  name, subscripts, bits, value);
304  }
305 
306  return 0;
307 }
308 
310  uint32_t range_min, uint32_t range_max,
311  const char *name, uint32_t *write_to)
312 {
313  uint32_t value;
314  int position, i;
315  char bits[33];
316 
317  av_assert0(range_min <= range_max && range_max - range_min < sizeof(bits) - 1);
318  if (ctx->trace_enable)
319  position = get_bits_count(gbc);
320 
321  for (i = 0, value = range_min; value < range_max;) {
322  if (get_bits_left(gbc) < 1) {
323  av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid increment value at "
324  "%s: bitstream ended.\n", name);
325  return AVERROR_INVALIDDATA;
326  }
327  if (get_bits1(gbc)) {
328  bits[i++] = '1';
329  ++value;
330  } else {
331  bits[i++] = '0';
332  break;
333  }
334  }
335 
336  if (ctx->trace_enable) {
337  bits[i] = 0;
339  name, NULL, bits, value);
340  }
341 
342  *write_to = value;
343  return 0;
344 }
345 
347  uint32_t range_min, uint32_t range_max,
348  const char *name, uint32_t value)
349 {
350  int len;
351 
352  av_assert0(range_min <= range_max && range_max - range_min < 32);
353  if (value < range_min || value > range_max) {
354  av_log(ctx->log_ctx, AV_LOG_ERROR, "%s out of range: "
355  "%"PRIu32", but must be in [%"PRIu32",%"PRIu32"].\n",
356  name, value, range_min, range_max);
357  return AVERROR_INVALIDDATA;
358  }
359 
360  if (value == range_max)
361  len = range_max - range_min;
362  else
363  len = value - range_min + 1;
364  if (put_bits_left(pbc) < len)
365  return AVERROR(ENOSPC);
366 
367  if (ctx->trace_enable) {
368  char bits[33];
369  int i;
370  for (i = 0; i < len; i++) {
371  if (range_min + i == value)
372  bits[i] = '0';
373  else
374  bits[i] = '1';
375  }
376  bits[i] = 0;
378  name, NULL, bits, value);
379  }
380 
381  if (len > 0)
382  put_bits(pbc, len, (1 << len) - 1 - (value != range_max));
383 
384  return 0;
385 }
386 
388  uint32_t range_max, const char *name,
389  const int *subscripts, uint32_t *write_to)
390 {
391  uint32_t value;
392  int position, err;
393  uint32_t max_len, len, range_offset, range_bits;
394 
395  if (ctx->trace_enable)
396  position = get_bits_count(gbc);
397 
398  av_assert0(range_max > 0);
399  max_len = av_log2(range_max - 1) - 3;
400 
401  err = cbs_av1_read_increment(ctx, gbc, 0, max_len,
402  "subexp_more_bits", &len);
403  if (err < 0)
404  return err;
405 
406  if (len) {
407  range_bits = 2 + len;
408  range_offset = 1 << range_bits;
409  } else {
410  range_bits = 3;
411  range_offset = 0;
412  }
413 
414  if (len < max_len) {
415  err = ff_cbs_read_unsigned(ctx, gbc, range_bits,
416  "subexp_bits", NULL, &value,
417  0, MAX_UINT_BITS(range_bits));
418  if (err < 0)
419  return err;
420 
421  } else {
422  err = cbs_av1_read_ns(ctx, gbc, range_max - range_offset,
423  "subexp_final_bits", NULL, &value);
424  if (err < 0)
425  return err;
426  }
427  value += range_offset;
428 
429  if (ctx->trace_enable)
431  name, subscripts, "", value);
432 
433  *write_to = value;
434  return err;
435 }
436 
438  uint32_t range_max, const char *name,
439  const int *subscripts, uint32_t value)
440 {
441  int position, err;
442  uint32_t max_len, len, range_offset, range_bits;
443 
444  if (value > range_max) {
445  av_log(ctx->log_ctx, AV_LOG_ERROR, "%s out of range: "
446  "%"PRIu32", but must be in [0,%"PRIu32"].\n",
447  name, value, range_max);
448  return AVERROR_INVALIDDATA;
449  }
450 
451  if (ctx->trace_enable)
452  position = put_bits_count(pbc);
453 
454  av_assert0(range_max > 0);
455  max_len = av_log2(range_max - 1) - 3;
456 
457  if (value < 8) {
458  range_bits = 3;
459  range_offset = 0;
460  len = 0;
461  } else {
462  range_bits = av_log2(value);
463  len = range_bits - 2;
464  if (len > max_len) {
465  // The top bin is combined with the one below it.
466  av_assert0(len == max_len + 1);
467  --range_bits;
468  len = max_len;
469  }
470  range_offset = 1 << range_bits;
471  }
472 
473  err = cbs_av1_write_increment(ctx, pbc, 0, max_len,
474  "subexp_more_bits", len);
475  if (err < 0)
476  return err;
477 
478  if (len < max_len) {
479  err = ff_cbs_write_unsigned(ctx, pbc, range_bits,
480  "subexp_bits", NULL,
481  value - range_offset,
482  0, MAX_UINT_BITS(range_bits));
483  if (err < 0)
484  return err;
485 
486  } else {
487  err = cbs_av1_write_ns(ctx, pbc, range_max - range_offset,
488  "subexp_final_bits", NULL,
489  value - range_offset);
490  if (err < 0)
491  return err;
492  }
493 
494  if (ctx->trace_enable)
496  name, subscripts, "", value);
497 
498  return err;
499 }
500 
501 
502 static int cbs_av1_tile_log2(int blksize, int target)
503 {
504  int k;
505  for (k = 0; (blksize << k) < target; k++);
506  return k;
507 }
508 
510  unsigned int a, unsigned int b)
511 {
512  unsigned int diff, m;
513  if (!seq->enable_order_hint)
514  return 0;
515  diff = a - b;
516  m = 1 << seq->order_hint_bits_minus_1;
517  diff = (diff & (m - 1)) - (diff & m);
518  return diff;
519 }
520 
522 {
523  GetBitContext tmp = *gbc;
524  size_t size = 0;
525  for (int i = 0; get_bits_left(&tmp) >= 8; i++) {
526  if (get_bits(&tmp, 8))
527  size = i;
528  }
529  return size;
530 }
531 
532 
533 #define HEADER(name) do { \
534  ff_cbs_trace_header(ctx, name); \
535  } while (0)
536 
537 #define CHECK(call) do { \
538  err = (call); \
539  if (err < 0) \
540  return err; \
541  } while (0)
542 
543 #define FUNC_NAME(rw, codec, name) cbs_ ## codec ## _ ## rw ## _ ## name
544 #define FUNC_AV1(rw, name) FUNC_NAME(rw, av1, name)
545 #define FUNC(name) FUNC_AV1(READWRITE, name)
546 
547 #define SUBSCRIPTS(subs, ...) (subs > 0 ? ((int[subs + 1]){ subs, __VA_ARGS__ }) : NULL)
548 
549 #define fb(width, name) \
550  xf(width, name, current->name, 0, MAX_UINT_BITS(width), 0, )
551 #define fc(width, name, range_min, range_max) \
552  xf(width, name, current->name, range_min, range_max, 0, )
553 #define flag(name) fb(1, name)
554 #define su(width, name) \
555  xsu(width, name, current->name, 0, )
556 
557 #define fbs(width, name, subs, ...) \
558  xf(width, name, current->name, 0, MAX_UINT_BITS(width), subs, __VA_ARGS__)
559 #define fcs(width, name, range_min, range_max, subs, ...) \
560  xf(width, name, current->name, range_min, range_max, subs, __VA_ARGS__)
561 #define flags(name, subs, ...) \
562  xf(1, name, current->name, 0, 1, subs, __VA_ARGS__)
563 #define sus(width, name, subs, ...) \
564  xsu(width, name, current->name, subs, __VA_ARGS__)
565 
566 #define fixed(width, name, value) do { \
567  av_unused uint32_t fixed_value = value; \
568  xf(width, name, fixed_value, value, value, 0, ); \
569  } while (0)
570 
571 
572 #define READ
573 #define READWRITE read
574 #define RWContext GetBitContext
575 
576 #define xf(width, name, var, range_min, range_max, subs, ...) do { \
577  uint32_t value; \
578  CHECK(ff_cbs_read_unsigned(ctx, rw, width, #name, \
579  SUBSCRIPTS(subs, __VA_ARGS__), \
580  &value, range_min, range_max)); \
581  var = value; \
582  } while (0)
583 
584 #define xsu(width, name, var, subs, ...) do { \
585  int32_t value; \
586  CHECK(ff_cbs_read_signed(ctx, rw, width, #name, \
587  SUBSCRIPTS(subs, __VA_ARGS__), &value, \
588  MIN_INT_BITS(width), \
589  MAX_INT_BITS(width))); \
590  var = value; \
591  } while (0)
592 
593 #define uvlc(name, range_min, range_max) do { \
594  uint32_t value; \
595  CHECK(cbs_av1_read_uvlc(ctx, rw, #name, \
596  &value, range_min, range_max)); \
597  current->name = value; \
598  } while (0)
599 
600 #define ns(max_value, name, subs, ...) do { \
601  uint32_t value; \
602  CHECK(cbs_av1_read_ns(ctx, rw, max_value, #name, \
603  SUBSCRIPTS(subs, __VA_ARGS__), &value)); \
604  current->name = value; \
605  } while (0)
606 
607 #define increment(name, min, max) do { \
608  uint32_t value; \
609  CHECK(cbs_av1_read_increment(ctx, rw, min, max, #name, &value)); \
610  current->name = value; \
611  } while (0)
612 
613 #define subexp(name, max, subs, ...) do { \
614  uint32_t value; \
615  CHECK(cbs_av1_read_subexp(ctx, rw, max, #name, \
616  SUBSCRIPTS(subs, __VA_ARGS__), &value)); \
617  current->name = value; \
618  } while (0)
619 
620 #define delta_q(name) do { \
621  uint8_t delta_coded; \
622  int8_t delta_q; \
623  xf(1, name.delta_coded, delta_coded, 0, 1, 0, ); \
624  if (delta_coded) \
625  xsu(1 + 6, name.delta_q, delta_q, 0, ); \
626  else \
627  delta_q = 0; \
628  current->name = delta_q; \
629  } while (0)
630 
631 #define leb128(name) do { \
632  uint64_t value; \
633  CHECK(cbs_av1_read_leb128(ctx, rw, #name, &value)); \
634  current->name = value; \
635  } while (0)
636 
637 #define infer(name, value) do { \
638  current->name = value; \
639  } while (0)
640 
641 #define byte_alignment(rw) (get_bits_count(rw) % 8)
642 
643 #include "cbs_av1_syntax_template.c"
644 
645 #undef READ
646 #undef READWRITE
647 #undef RWContext
648 #undef xf
649 #undef xsu
650 #undef uvlc
651 #undef ns
652 #undef increment
653 #undef subexp
654 #undef delta_q
655 #undef leb128
656 #undef infer
657 #undef byte_alignment
658 
659 
660 #define WRITE
661 #define READWRITE write
662 #define RWContext PutBitContext
663 
664 #define xf(width, name, var, range_min, range_max, subs, ...) do { \
665  CHECK(ff_cbs_write_unsigned(ctx, rw, width, #name, \
666  SUBSCRIPTS(subs, __VA_ARGS__), \
667  var, range_min, range_max)); \
668  } while (0)
669 
670 #define xsu(width, name, var, subs, ...) do { \
671  CHECK(ff_cbs_write_signed(ctx, rw, width, #name, \
672  SUBSCRIPTS(subs, __VA_ARGS__), var, \
673  MIN_INT_BITS(width), \
674  MAX_INT_BITS(width))); \
675  } while (0)
676 
677 #define uvlc(name, range_min, range_max) do { \
678  CHECK(cbs_av1_write_uvlc(ctx, rw, #name, current->name, \
679  range_min, range_max)); \
680  } while (0)
681 
682 #define ns(max_value, name, subs, ...) do { \
683  CHECK(cbs_av1_write_ns(ctx, rw, max_value, #name, \
684  SUBSCRIPTS(subs, __VA_ARGS__), \
685  current->name)); \
686  } while (0)
687 
688 #define increment(name, min, max) do { \
689  CHECK(cbs_av1_write_increment(ctx, rw, min, max, #name, \
690  current->name)); \
691  } while (0)
692 
693 #define subexp(name, max, subs, ...) do { \
694  CHECK(cbs_av1_write_subexp(ctx, rw, max, #name, \
695  SUBSCRIPTS(subs, __VA_ARGS__), \
696  current->name)); \
697  } while (0)
698 
699 #define delta_q(name) do { \
700  xf(1, name.delta_coded, current->name != 0, 0, 1, 0, ); \
701  if (current->name) \
702  xsu(1 + 6, name.delta_q, current->name, 0, ); \
703  } while (0)
704 
705 #define leb128(name) do { \
706  CHECK(cbs_av1_write_leb128(ctx, rw, #name, current->name)); \
707  } while (0)
708 
709 #define infer(name, value) do { \
710  if (current->name != (value)) { \
711  av_log(ctx->log_ctx, AV_LOG_ERROR, \
712  "%s does not match inferred value: " \
713  "%"PRId64", but should be %"PRId64".\n", \
714  #name, (int64_t)current->name, (int64_t)(value)); \
715  return AVERROR_INVALIDDATA; \
716  } \
717  } while (0)
718 
719 #define byte_alignment(rw) (put_bits_count(rw) % 8)
720 
721 #include "cbs_av1_syntax_template.c"
722 
723 #undef WRITE
724 #undef READWRITE
725 #undef RWContext
726 #undef xf
727 #undef xsu
728 #undef uvlc
729 #undef ns
730 #undef increment
731 #undef subexp
732 #undef delta_q
733 #undef leb128
734 #undef infer
735 #undef byte_alignment
736 
737 
740  int header)
741 {
742  GetBitContext gbc;
743  uint8_t *data;
744  size_t size;
745  uint64_t obu_length;
746  int pos, err, trace;
747 
748  // Don't include this parsing in trace output.
749  trace = ctx->trace_enable;
750  ctx->trace_enable = 0;
751 
752  data = frag->data;
753  size = frag->data_size;
754 
755  if (INT_MAX / 8 < size) {
756  av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid fragment: "
757  "too large (%"SIZE_SPECIFIER" bytes).\n", size);
758  err = AVERROR_INVALIDDATA;
759  goto fail;
760  }
761 
762  if (header && size && data[0] & 0x80) {
763  // first bit is nonzero, the extradata does not consist purely of
764  // OBUs. Expect MP4/Matroska AV1CodecConfigurationRecord
765  int config_record_version = data[0] & 0x7f;
766 
767  if (config_record_version != 1) {
768  av_log(ctx->log_ctx, AV_LOG_ERROR,
769  "Unknown version %d of AV1CodecConfigurationRecord "
770  "found!\n",
771  config_record_version);
772  err = AVERROR_INVALIDDATA;
773  goto fail;
774  }
775 
776  if (size <= 4) {
777  if (size < 4) {
778  av_log(ctx->log_ctx, AV_LOG_WARNING,
779  "Undersized AV1CodecConfigurationRecord v%d found!\n",
780  config_record_version);
781  err = AVERROR_INVALIDDATA;
782  goto fail;
783  }
784 
785  goto success;
786  }
787 
788  // In AV1CodecConfigurationRecord v1, actual OBUs start after
789  // four bytes. Thus set the offset as required for properly
790  // parsing them.
791  data += 4;
792  size -= 4;
793  }
794 
795  while (size > 0) {
797  uint64_t obu_size;
798 
799  init_get_bits(&gbc, data, 8 * size);
800 
801  err = cbs_av1_read_obu_header(ctx, &gbc, &header);
802  if (err < 0)
803  goto fail;
804 
805  if (header.obu_has_size_field) {
806  if (get_bits_left(&gbc) < 8) {
807  av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid OBU: fragment "
808  "too short (%"SIZE_SPECIFIER" bytes).\n", size);
809  err = AVERROR_INVALIDDATA;
810  goto fail;
811  }
812  err = cbs_av1_read_leb128(ctx, &gbc, "obu_size", &obu_size);
813  if (err < 0)
814  goto fail;
815  } else
816  obu_size = size - 1 - header.obu_extension_flag;
817 
818  pos = get_bits_count(&gbc);
819  av_assert0(pos % 8 == 0 && pos / 8 <= size);
820 
821  obu_length = pos / 8 + obu_size;
822 
823  if (size < obu_length) {
824  av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid OBU length: "
825  "%"PRIu64", but only %"SIZE_SPECIFIER" bytes remaining in fragment.\n",
826  obu_length, size);
827  err = AVERROR_INVALIDDATA;
828  goto fail;
829  }
830 
831  err = ff_cbs_insert_unit_data(frag, -1, header.obu_type,
832  data, obu_length, frag->data_ref);
833  if (err < 0)
834  goto fail;
835 
836  data += obu_length;
837  size -= obu_length;
838  }
839 
840 success:
841  err = 0;
842 fail:
843  ctx->trace_enable = trace;
844  return err;
845 }
846 
848  CodedBitstreamUnit *unit,
849  GetBitContext *gbc,
851 {
852  int pos;
853 
854  pos = get_bits_count(gbc);
855  if (pos >= 8 * unit->data_size) {
856  av_log(ctx->log_ctx, AV_LOG_ERROR, "Bitstream ended before "
857  "any data in tile group (%d bits read).\n", pos);
858  return AVERROR_INVALIDDATA;
859  }
860  // Must be byte-aligned at this point.
861  av_assert0(pos % 8 == 0);
862 
863  td->data_ref = av_buffer_ref(unit->data_ref);
864  if (!td->data_ref)
865  return AVERROR(ENOMEM);
866 
867  td->data = unit->data + pos / 8;
868  td->data_size = unit->data_size - pos / 8;
869 
870  return 0;
871 }
872 
874  CodedBitstreamUnit *unit)
875 {
877  AV1RawOBU *obu;
878  GetBitContext gbc;
879  int err, start_pos, end_pos;
880 
881  err = ff_cbs_alloc_unit_content2(ctx, unit);
882  if (err < 0)
883  return err;
884  obu = unit->content;
885 
886  err = init_get_bits(&gbc, unit->data, 8 * unit->data_size);
887  if (err < 0)
888  return err;
889 
890  err = cbs_av1_read_obu_header(ctx, &gbc, &obu->header);
891  if (err < 0)
892  return err;
893  av_assert0(obu->header.obu_type == unit->type);
894 
895  if (obu->header.obu_has_size_field) {
896  uint64_t obu_size;
897  err = cbs_av1_read_leb128(ctx, &gbc, "obu_size", &obu_size);
898  if (err < 0)
899  return err;
900  obu->obu_size = obu_size;
901  } else {
902  if (unit->data_size < 1 + obu->header.obu_extension_flag) {
903  av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid OBU length: "
904  "unit too short (%"SIZE_SPECIFIER").\n", unit->data_size);
905  return AVERROR_INVALIDDATA;
906  }
907  obu->obu_size = unit->data_size - 1 - obu->header.obu_extension_flag;
908  }
909 
910  start_pos = get_bits_count(&gbc);
911 
912  if (obu->header.obu_extension_flag) {
915  priv->operating_point_idc) {
916  int in_temporal_layer =
917  (priv->operating_point_idc >> priv->temporal_id ) & 1;
918  int in_spatial_layer =
919  (priv->operating_point_idc >> (priv->spatial_id + 8)) & 1;
920  if (!in_temporal_layer || !in_spatial_layer) {
921  return AVERROR(EAGAIN); // drop_obu()
922  }
923  }
924  }
925 
926  switch (obu->header.obu_type) {
928  {
929  err = cbs_av1_read_sequence_header_obu(ctx, &gbc,
930  &obu->obu.sequence_header);
931  if (err < 0)
932  return err;
933 
934  if (priv->operating_point >= 0) {
936 
937  if (priv->operating_point > sequence_header->operating_points_cnt_minus_1) {
938  av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid Operating Point %d requested. "
939  "Must not be higher than %u.\n",
940  priv->operating_point, sequence_header->operating_points_cnt_minus_1);
941  return AVERROR(EINVAL);
942  }
943  priv->operating_point_idc = sequence_header->operating_point_idc[priv->operating_point];
944  }
945 
947  priv->sequence_header = NULL;
948 
950  if (!priv->sequence_header_ref)
951  return AVERROR(ENOMEM);
952  priv->sequence_header = &obu->obu.sequence_header;
953  }
954  break;
956  {
957  err = cbs_av1_read_temporal_delimiter_obu(ctx, &gbc);
958  if (err < 0)
959  return err;
960  }
961  break;
964  {
965  err = cbs_av1_read_frame_header_obu(ctx, &gbc,
966  &obu->obu.frame_header,
967  obu->header.obu_type ==
969  unit->data_ref);
970  if (err < 0)
971  return err;
972  }
973  break;
974  case AV1_OBU_TILE_GROUP:
975  {
976  err = cbs_av1_read_tile_group_obu(ctx, &gbc,
977  &obu->obu.tile_group);
978  if (err < 0)
979  return err;
980 
981  err = cbs_av1_ref_tile_data(ctx, unit, &gbc,
982  &obu->obu.tile_group.tile_data);
983  if (err < 0)
984  return err;
985  }
986  break;
987  case AV1_OBU_FRAME:
988  {
989  err = cbs_av1_read_frame_obu(ctx, &gbc, &obu->obu.frame,
990  unit->data_ref);
991  if (err < 0)
992  return err;
993 
994  err = cbs_av1_ref_tile_data(ctx, unit, &gbc,
995  &obu->obu.frame.tile_group.tile_data);
996  if (err < 0)
997  return err;
998  }
999  break;
1000  case AV1_OBU_TILE_LIST:
1001  {
1002  err = cbs_av1_read_tile_list_obu(ctx, &gbc,
1003  &obu->obu.tile_list);
1004  if (err < 0)
1005  return err;
1006 
1007  err = cbs_av1_ref_tile_data(ctx, unit, &gbc,
1008  &obu->obu.tile_list.tile_data);
1009  if (err < 0)
1010  return err;
1011  }
1012  break;
1013  case AV1_OBU_METADATA:
1014  {
1015  err = cbs_av1_read_metadata_obu(ctx, &gbc, &obu->obu.metadata);
1016  if (err < 0)
1017  return err;
1018  }
1019  break;
1020  case AV1_OBU_PADDING:
1021  {
1022  err = cbs_av1_read_padding_obu(ctx, &gbc, &obu->obu.padding);
1023  if (err < 0)
1024  return err;
1025  }
1026  break;
1027  default:
1028  return AVERROR(ENOSYS);
1029  }
1030 
1031  end_pos = get_bits_count(&gbc);
1032  av_assert0(end_pos <= unit->data_size * 8);
1033 
1034  if (obu->obu_size > 0 &&
1036  obu->header.obu_type != AV1_OBU_TILE_LIST &&
1037  obu->header.obu_type != AV1_OBU_FRAME) {
1038  int nb_bits = obu->obu_size * 8 + start_pos - end_pos;
1039 
1040  if (nb_bits <= 0)
1041  return AVERROR_INVALIDDATA;
1042 
1043  err = cbs_av1_read_trailing_bits(ctx, &gbc, nb_bits);
1044  if (err < 0)
1045  return err;
1046  }
1047 
1048  return 0;
1049 }
1050 
1052  CodedBitstreamUnit *unit,
1053  PutBitContext *pbc)
1054 {
1056  AV1RawOBU *obu = unit->content;
1057  PutBitContext pbc_tmp;
1058  AV1RawTileData *td;
1059  size_t header_size;
1060  int err, start_pos, end_pos, data_pos;
1061 
1062  // OBUs in the normal bitstream format must contain a size field
1063  // in every OBU (in annex B it is optional, but we don't support
1064  // writing that).
1065  obu->header.obu_has_size_field = 1;
1066 
1067  err = cbs_av1_write_obu_header(ctx, pbc, &obu->header);
1068  if (err < 0)
1069  return err;
1070 
1071  if (obu->header.obu_has_size_field) {
1072  pbc_tmp = *pbc;
1073  // Add space for the size field to fill later.
1074  put_bits32(pbc, 0);
1075  put_bits32(pbc, 0);
1076  }
1077 
1078  td = NULL;
1079  start_pos = put_bits_count(pbc);
1080 
1081  switch (obu->header.obu_type) {
1083  {
1084  err = cbs_av1_write_sequence_header_obu(ctx, pbc,
1085  &obu->obu.sequence_header);
1086  if (err < 0)
1087  return err;
1088 
1090  priv->sequence_header = NULL;
1091 
1092  err = ff_cbs_make_unit_refcounted(ctx, unit);
1093  if (err < 0)
1094  return err;
1095 
1097  if (!priv->sequence_header_ref)
1098  return AVERROR(ENOMEM);
1099  priv->sequence_header = &obu->obu.sequence_header;
1100  }
1101  break;
1103  {
1104  err = cbs_av1_write_temporal_delimiter_obu(ctx, pbc);
1105  if (err < 0)
1106  return err;
1107  }
1108  break;
1109  case AV1_OBU_FRAME_HEADER:
1111  {
1112  err = cbs_av1_write_frame_header_obu(ctx, pbc,
1113  &obu->obu.frame_header,
1114  obu->header.obu_type ==
1116  NULL);
1117  if (err < 0)
1118  return err;
1119  }
1120  break;
1121  case AV1_OBU_TILE_GROUP:
1122  {
1123  err = cbs_av1_write_tile_group_obu(ctx, pbc,
1124  &obu->obu.tile_group);
1125  if (err < 0)
1126  return err;
1127 
1128  td = &obu->obu.tile_group.tile_data;
1129  }
1130  break;
1131  case AV1_OBU_FRAME:
1132  {
1133  err = cbs_av1_write_frame_obu(ctx, pbc, &obu->obu.frame, NULL);
1134  if (err < 0)
1135  return err;
1136 
1137  td = &obu->obu.frame.tile_group.tile_data;
1138  }
1139  break;
1140  case AV1_OBU_TILE_LIST:
1141  {
1142  err = cbs_av1_write_tile_list_obu(ctx, pbc, &obu->obu.tile_list);
1143  if (err < 0)
1144  return err;
1145 
1146  td = &obu->obu.tile_list.tile_data;
1147  }
1148  break;
1149  case AV1_OBU_METADATA:
1150  {
1151  err = cbs_av1_write_metadata_obu(ctx, pbc, &obu->obu.metadata);
1152  if (err < 0)
1153  return err;
1154  }
1155  break;
1156  case AV1_OBU_PADDING:
1157  {
1158  err = cbs_av1_write_padding_obu(ctx, pbc, &obu->obu.padding);
1159  if (err < 0)
1160  return err;
1161  }
1162  break;
1163  default:
1164  return AVERROR(ENOSYS);
1165  }
1166 
1167  end_pos = put_bits_count(pbc);
1168  header_size = (end_pos - start_pos + 7) / 8;
1169  if (td) {
1170  obu->obu_size = header_size + td->data_size;
1171  } else if (header_size > 0) {
1172  // Add trailing bits and recalculate.
1173  err = cbs_av1_write_trailing_bits(ctx, pbc, 8 - end_pos % 8);
1174  if (err < 0)
1175  return err;
1176  end_pos = put_bits_count(pbc);
1177  obu->obu_size = header_size = (end_pos - start_pos + 7) / 8;
1178  } else {
1179  // Empty OBU.
1180  obu->obu_size = 0;
1181  }
1182 
1183  end_pos = put_bits_count(pbc);
1184  // Must now be byte-aligned.
1185  av_assert0(end_pos % 8 == 0);
1186  flush_put_bits(pbc);
1187  start_pos /= 8;
1188  end_pos /= 8;
1189 
1190  *pbc = pbc_tmp;
1191  err = cbs_av1_write_leb128(ctx, pbc, "obu_size", obu->obu_size);
1192  if (err < 0)
1193  return err;
1194 
1195  data_pos = put_bits_count(pbc) / 8;
1196  flush_put_bits(pbc);
1197  av_assert0(data_pos <= start_pos);
1198 
1199  if (8 * obu->obu_size > put_bits_left(pbc))
1200  return AVERROR(ENOSPC);
1201 
1202  if (obu->obu_size > 0) {
1203  memmove(pbc->buf + data_pos,
1204  pbc->buf + start_pos, header_size);
1205  skip_put_bytes(pbc, header_size);
1206 
1207  if (td) {
1208  memcpy(pbc->buf + data_pos + header_size,
1209  td->data, td->data_size);
1210  skip_put_bytes(pbc, td->data_size);
1211  }
1212  }
1213 
1214  // OBU data must be byte-aligned.
1215  av_assert0(put_bits_count(pbc) % 8 == 0);
1216 
1217  return 0;
1218 }
1219 
1221  CodedBitstreamFragment *frag)
1222 {
1223  size_t size, pos;
1224  int i;
1225 
1226  size = 0;
1227  for (i = 0; i < frag->nb_units; i++)
1228  size += frag->units[i].data_size;
1229 
1231  if (!frag->data_ref)
1232  return AVERROR(ENOMEM);
1233  frag->data = frag->data_ref->data;
1234  memset(frag->data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
1235 
1236  pos = 0;
1237  for (i = 0; i < frag->nb_units; i++) {
1238  memcpy(frag->data + pos, frag->units[i].data,
1239  frag->units[i].data_size);
1240  pos += frag->units[i].data_size;
1241  }
1242  av_assert0(pos == size);
1243  frag->data_size = size;
1244 
1245  return 0;
1246 }
1247 
1249 {
1251 
1253  priv->sequence_header = NULL;
1254  priv->frame_header = NULL;
1255 
1256  memset(priv->ref, 0, sizeof(priv->ref));
1257  priv->operating_point_idc = 0;
1258  priv->seen_frame_header = 0;
1259  priv->tile_num = 0;
1260 }
1261 
1263 {
1265 
1268 }
1269 
1270 static void cbs_av1_free_metadata(void *unit, uint8_t *content)
1271 {
1272  AV1RawOBU *obu = (AV1RawOBU*)content;
1273  AV1RawMetadata *md;
1274 
1276  md = &obu->obu.metadata;
1277 
1278  switch (md->metadata_type) {
1280  av_buffer_unref(&md->metadata.itut_t35.payload_ref);
1281  break;
1282  }
1283  av_free(content);
1284 }
1285 
1291 
1293  obu.tile_group.tile_data.data),
1297  obu.tile_list.tile_data.data),
1299  obu.padding.payload),
1300 
1303 
1305 };
1306 
1307 #define OFFSET(x) offsetof(CodedBitstreamAV1Context, x)
1308 static const AVOption cbs_av1_options[] = {
1309  { "operating_point", "Set operating point to select layers to parse from a scalable bitstream",
1310  OFFSET(operating_point), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, AV1_MAX_OPERATING_POINTS - 1, 0 },
1311  { NULL }
1312 };
1313 
1314 static const AVClass cbs_av1_class = {
1315  .class_name = "cbs_av1",
1316  .item_name = av_default_item_name,
1317  .option = cbs_av1_options,
1318  .version = LIBAVUTIL_VERSION_INT,
1319 };
1320 
1323 
1324  .priv_class = &cbs_av1_class,
1325  .priv_data_size = sizeof(CodedBitstreamAV1Context),
1326 
1327  .unit_types = cbs_av1_unit_types,
1328 
1329  .split_fragment = &cbs_av1_split_fragment,
1330  .read_unit = &cbs_av1_read_unit,
1331  .write_unit = &cbs_av1_write_obu,
1332  .assemble_fragment = &cbs_av1_assemble_fragment,
1333 
1334  .flush = &cbs_av1_flush,
1335  .close = &cbs_av1_close,
1336 };
static void flush(AVCodecContext *avctx)
uint8_t
simple assert() macros that are a bit more flexible than ISO C assert().
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
int ff_cbs_insert_unit_data(CodedBitstreamFragment *frag, int position, CodedBitstreamUnitType type, uint8_t *data, size_t data_size, AVBufferRef *data_buf)
Insert a new unit into a fragment with the given data bitstream.
Definition: cbs.c:773
int ff_cbs_make_unit_refcounted(CodedBitstreamContext *ctx, CodedBitstreamUnit *unit)
Make the content of a unit refcounted.
Definition: cbs.c:963
int ff_cbs_write_unsigned(CodedBitstreamContext *ctx, PutBitContext *pbc, int width, const char *name, const int *subscripts, uint32_t value, uint32_t range_min, uint32_t range_max)
Definition: cbs.c:546
void ff_cbs_trace_syntax_element(CodedBitstreamContext *ctx, int position, const char *str, const int *subscripts, const char *bits, int64_t value)
Definition: cbs.c:453
int ff_cbs_read_unsigned(CodedBitstreamContext *ctx, GetBitContext *gbc, int width, const char *name, const int *subscripts, uint32_t *write_to, uint32_t range_min, uint32_t range_max)
Definition: cbs.c:503
int ff_cbs_alloc_unit_content2(CodedBitstreamContext *ctx, CodedBitstreamUnit *unit)
Allocate a new internal content buffer matching the type of the unit.
Definition: cbs.c:869
static size_t cbs_av1_get_payload_bytes_left(GetBitContext *gbc)
Definition: cbs_av1.c:521
static const AVOption cbs_av1_options[]
Definition: cbs_av1.c:1308
static int cbs_av1_split_fragment(CodedBitstreamContext *ctx, CodedBitstreamFragment *frag, int header)
Definition: cbs_av1.c:738
static int cbs_av1_read_ns(CodedBitstreamContext *ctx, GetBitContext *gbc, uint32_t n, const char *name, const int *subscripts, uint32_t *write_to)
Definition: cbs_av1.c:210
static int cbs_av1_read_leb128(CodedBitstreamContext *ctx, GetBitContext *gbc, const char *name, uint64_t *write_to)
Definition: cbs_av1.c:147
static int cbs_av1_write_ns(CodedBitstreamContext *ctx, PutBitContext *pbc, uint32_t n, const char *name, const int *subscripts, uint32_t value)
Definition: cbs_av1.c:260
static int cbs_av1_write_leb128(CodedBitstreamContext *ctx, PutBitContext *pbc, const char *name, uint64_t value)
Definition: cbs_av1.c:180
static int cbs_av1_write_obu(CodedBitstreamContext *ctx, CodedBitstreamUnit *unit, PutBitContext *pbc)
Definition: cbs_av1.c:1051
static int cbs_av1_write_subexp(CodedBitstreamContext *ctx, PutBitContext *pbc, uint32_t range_max, const char *name, const int *subscripts, uint32_t value)
Definition: cbs_av1.c:437
static int cbs_av1_assemble_fragment(CodedBitstreamContext *ctx, CodedBitstreamFragment *frag)
Definition: cbs_av1.c:1220
static int cbs_av1_read_increment(CodedBitstreamContext *ctx, GetBitContext *gbc, uint32_t range_min, uint32_t range_max, const char *name, uint32_t *write_to)
Definition: cbs_av1.c:309
static int cbs_av1_get_relative_dist(const AV1RawSequenceHeader *seq, unsigned int a, unsigned int b)
Definition: cbs_av1.c:509
static void cbs_av1_free_metadata(void *unit, uint8_t *content)
Definition: cbs_av1.c:1270
static void cbs_av1_close(CodedBitstreamContext *ctx)
Definition: cbs_av1.c:1262
static int cbs_av1_read_subexp(CodedBitstreamContext *ctx, GetBitContext *gbc, uint32_t range_max, const char *name, const int *subscripts, uint32_t *write_to)
Definition: cbs_av1.c:387
static const AVClass cbs_av1_class
Definition: cbs_av1.c:1314
static int cbs_av1_write_uvlc(CodedBitstreamContext *ctx, PutBitContext *pbc, const char *name, uint32_t value, uint32_t range_min, uint32_t range_max)
Definition: cbs_av1.c:107
static int cbs_av1_write_increment(CodedBitstreamContext *ctx, PutBitContext *pbc, uint32_t range_min, uint32_t range_max, const char *name, uint32_t value)
Definition: cbs_av1.c:346
#define OFFSET(x)
Definition: cbs_av1.c:1307
static int cbs_av1_ref_tile_data(CodedBitstreamContext *ctx, CodedBitstreamUnit *unit, GetBitContext *gbc, AV1RawTileData *td)
Definition: cbs_av1.c:847
static const CodedBitstreamUnitTypeDescriptor cbs_av1_unit_types[]
Definition: cbs_av1.c:1286
static void cbs_av1_flush(CodedBitstreamContext *ctx)
Definition: cbs_av1.c:1248
static int cbs_av1_tile_log2(int blksize, int target)
Definition: cbs_av1.c:502
const CodedBitstreamType ff_cbs_type_av1
Definition: cbs_av1.c:1321
static int cbs_av1_read_uvlc(CodedBitstreamContext *ctx, GetBitContext *gbc, const char *name, uint32_t *write_to, uint32_t range_min, uint32_t range_max)
Definition: cbs_av1.c:29
static int cbs_av1_read_unit(CodedBitstreamContext *ctx, CodedBitstreamUnit *unit)
Definition: cbs_av1.c:873
#define CBS_UNIT_TYPE_END_OF_LIST
Definition: cbs_internal.h:201
#define CBS_UNIT_TYPE_INTERNAL_REF(type, structure, ref_field)
Definition: cbs_internal.h:186
#define CBS_UNIT_TYPE_POD(type, structure)
Definition: cbs_internal.h:180
#define CBS_UNIT_TYPE_COMPLEX(type, structure, free_func)
Definition: cbs_internal.h:194
#define MAX_UINT_BITS(length)
Definition: cbs_internal.h:169
static int FUNC() sequence_header(CodedBitstreamContext *ctx, RWContext *rw, MPEG2RawSequenceHeader *current)
#define fail()
Definition: checkasm.h:133
#define FFMIN(a, b)
Definition: common.h:105
#define NULL
Definition: coverity.c:32
double value
Definition: eval.c:98
static unsigned int get_bits_long(GetBitContext *s, int n)
Read 0-32 bits.
Definition: get_bits.h:546
static int get_bits_left(GetBitContext *gb)
Definition: get_bits.h:849
static unsigned int get_bits1(GetBitContext *s)
Definition: get_bits.h:498
static int get_bits_count(const GetBitContext *s)
Definition: get_bits.h:219
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
Definition: get_bits.h:379
static int init_get_bits(GetBitContext *s, const uint8_t *buffer, int bit_size)
Initialize GetBitContext.
Definition: get_bits.h:659
@ AV_OPT_TYPE_INT
Definition: opt.h:225
@ AV_CODEC_ID_AV1
Definition: codec_id.h:279
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding.
Definition: avcodec.h:215
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
AVBufferRef * av_buffer_alloc(buffer_size_t size)
Allocate an AVBuffer of the given size using av_malloc().
Definition: buffer.c:67
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
#define AVERROR(e)
Definition: error.h:43
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:200
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:194
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
int i
Definition: input.c:407
#define av_log2
Definition: intmath.h:83
static void put_bits(Jpeg2000EncoderContext *s, int val, int n)
put n times val bit
Definition: j2kenc.c:218
@ AV1_OBU_TILE_LIST
Definition: av1.h:37
@ AV1_OBU_TEMPORAL_DELIMITER
Definition: av1.h:31
@ AV1_OBU_METADATA
Definition: av1.h:34
@ AV1_OBU_TILE_GROUP
Definition: av1.h:33
@ AV1_OBU_REDUNDANT_FRAME_HEADER
Definition: av1.h:36
@ AV1_OBU_FRAME_HEADER
Definition: av1.h:32
@ AV1_OBU_PADDING
Definition: av1.h:39
@ AV1_OBU_FRAME
Definition: av1.h:35
@ AV1_OBU_SEQUENCE_HEADER
Definition: av1.h:30
@ AV1_METADATA_TYPE_ITUT_T35
Definition: av1.h:47
@ AV1_MAX_OPERATING_POINTS
Definition: av1.h:73
common internal API header
#define SIZE_SPECIFIER
Definition: internal.h:193
uint8_t w
Definition: llviddspenc.c:39
const char data[16]
Definition: mxf.c:142
AVOptions.
pixel format definitions
static void av_unused put_bits32(PutBitContext *s, uint32_t value)
Write exactly 32 bits into a bitstream.
Definition: put_bits.h:263
static int put_bits_count(PutBitContext *s)
Definition: put_bits.h:76
static int put_bits_left(PutBitContext *s)
Definition: put_bits.h:102
static void flush_put_bits(PutBitContext *s)
Pad the end of the output stream with zeros.
Definition: put_bits.h:110
static void skip_put_bytes(PutBitContext *s, int n)
Skip the given number of bytes.
Definition: put_bits.h:351
const char * name
Definition: qsvenc.c:46
#define td
Definition: regdef.h:70
static const uint8_t header[24]
Definition: sdr2.c:67
unsigned int pos
Definition: spdifenc.c:412
AV1RawTileGroup tile_group
Definition: cbs_av1.h:305
uint8_t obu_extension_flag
Definition: cbs_av1.h:32
uint8_t obu_has_size_field
Definition: cbs_av1.h:33
uint8_t obu_type
Definition: cbs_av1.h:31
AV1RawFrameHeader frame_header
Definition: cbs_av1.h:398
AV1RawOBUHeader header
Definition: cbs_av1.h:392
size_t obu_size
Definition: cbs_av1.h:394
AV1RawPadding padding
Definition: cbs_av1.h:403
AV1RawTileGroup tile_group
Definition: cbs_av1.h:400
AV1RawSequenceHeader sequence_header
Definition: cbs_av1.h:397
AV1RawFrame frame
Definition: cbs_av1.h:399
AV1RawTileList tile_list
Definition: cbs_av1.h:401
AV1RawMetadata metadata
Definition: cbs_av1.h:402
union AV1RawOBU::@25 obu
uint8_t * payload
Definition: cbs_av1.h:385
uint8_t order_hint_bits_minus_1
Definition: cbs_av1.h:122
uint8_t enable_order_hint
Definition: cbs_av1.h:113
uint8_t * data
Definition: cbs_av1.h:290
AV1RawTileData tile_data
Definition: cbs_av1.h:300
AV1RawTileData tile_data
Definition: cbs_av1.h:313
uint8_t * data
The data buffer.
Definition: buffer.h:92
Describe the class of an AVClass context structure.
Definition: log.h:67
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:72
void * priv_data
Format private data.
Definition: avformat.h:1260
AVOption.
Definition: opt.h:248
uint8_t * frame_header
Definition: cbs_av1.h:435
AVBufferRef * sequence_header_ref
Definition: cbs_av1.h:431
AV1RawSequenceHeader * sequence_header
Definition: cbs_av1.h:430
AVBufferRef * frame_header_ref
Definition: cbs_av1.h:434
AV1ReferenceFrameState ref[AV1_NUM_REF_FRAMES]
Definition: cbs_av1.h:457
Context structure for coded bitstream operations.
Definition: cbs.h:170
Coded bitstream fragment structure, combining one or more units.
Definition: cbs.h:118
CodedBitstreamUnit * units
Pointer to an array of units of length nb_units_allocated.
Definition: cbs.h:164
int nb_units
Number of units in this fragment.
Definition: cbs.h:149
size_t data_size
The number of bytes in the bitstream.
Definition: cbs.h:131
uint8_t * data
Pointer to the bitstream form of this fragment.
Definition: cbs.h:124
AVBufferRef * data_ref
A reference to the buffer containing data.
Definition: cbs.h:141
enum AVCodecID codec_id
Definition: cbs_internal.h:87
Coded bitstream unit structure.
Definition: cbs.h:66
void * content
Pointer to the decomposed form of this unit.
Definition: cbs.h:103
AVBufferRef * content_ref
If content is reference counted, a reference to the buffer containing content.
Definition: cbs.h:108
uint8_t * data
Pointer to the directly-parsable bitstream form of this unit.
Definition: cbs.h:77
CodedBitstreamUnitType type
Codec-specific type of this unit.
Definition: cbs.h:70
size_t data_size
The number of bytes in the bitstream (including any padding bits in the final byte).
Definition: cbs.h:82
AVBufferRef * data_ref
A reference to the buffer containing data.
Definition: cbs.h:94
uint8_t * buf
Definition: put_bits.h:47
#define av_free(p)
#define av_log(a,...)
static uint8_t tmp[11]
Definition: aes_ctr.c:27
AVFormatContext * ctx
Definition: movenc.c:48
int size
#define md
const char * b
Definition: vf_curves.c:118
static av_always_inline int diff(const uint32_t a, const uint32_t b)
int len
uint8_t bits
Definition: vp3data.h:141