FFmpeg  4.4.4
avpacket.c
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1 /*
2  * AVPacket functions for libavcodec
3  * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include <string.h>
23 
24 #include "libavutil/avassert.h"
25 #include "libavutil/common.h"
26 #include "libavutil/internal.h"
27 #include "libavutil/mathematics.h"
28 #include "libavutil/mem.h"
29 
30 #include "bytestream.h"
31 #include "internal.h"
32 #include "packet.h"
33 #include "packet_internal.h"
34 
35 #if FF_API_INIT_PACKET
37 {
40  pkt->pos = -1;
41  pkt->duration = 0;
42 #if FF_API_CONVERGENCE_DURATION
44  pkt->convergence_duration = 0;
46 #endif
47  pkt->flags = 0;
48  pkt->stream_index = 0;
49  pkt->buf = NULL;
50  pkt->side_data = NULL;
51  pkt->side_data_elems = 0;
52 }
53 #endif
54 
56 {
57  memset(pkt, 0, sizeof(*pkt));
58 
61  pkt->pos = -1;
62 }
63 
65 {
66  AVPacket *pkt = av_mallocz(sizeof(AVPacket));
67  if (!pkt)
68  return pkt;
69 
71 
72  return pkt;
73 }
74 
76 {
77  if (!pkt || !*pkt)
78  return;
79 
81  av_freep(pkt);
82 }
83 
84 static int packet_alloc(AVBufferRef **buf, int size)
85 {
86  int ret;
87  if (size < 0 || size >= INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
88  return AVERROR(EINVAL);
89 
91  if (ret < 0)
92  return ret;
93 
94  memset((*buf)->data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
95 
96  return 0;
97 }
98 
100 {
101  AVBufferRef *buf = NULL;
102  int ret = packet_alloc(&buf, size);
103  if (ret < 0)
104  return ret;
105 
107  pkt->buf = buf;
108  pkt->data = buf->data;
109  pkt->size = size;
110 
111  return 0;
112 }
113 
115 {
116  if (pkt->size <= size)
117  return;
118  pkt->size = size;
119  memset(pkt->data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
120 }
121 
122 int av_grow_packet(AVPacket *pkt, int grow_by)
123 {
124  int new_size;
125  av_assert0((unsigned)pkt->size <= INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE);
126  if ((unsigned)grow_by >
127  INT_MAX - (pkt->size + AV_INPUT_BUFFER_PADDING_SIZE))
128  return AVERROR(ENOMEM);
129 
130  new_size = pkt->size + grow_by + AV_INPUT_BUFFER_PADDING_SIZE;
131  if (pkt->buf) {
132  size_t data_offset;
133  uint8_t *old_data = pkt->data;
134  if (pkt->data == NULL) {
135  data_offset = 0;
136  pkt->data = pkt->buf->data;
137  } else {
138  data_offset = pkt->data - pkt->buf->data;
139  if (data_offset > INT_MAX - new_size)
140  return AVERROR(ENOMEM);
141  }
142 
143  if (new_size + data_offset > pkt->buf->size ||
145  int ret = av_buffer_realloc(&pkt->buf, new_size + data_offset);
146  if (ret < 0) {
147  pkt->data = old_data;
148  return ret;
149  }
150  pkt->data = pkt->buf->data + data_offset;
151  }
152  } else {
153  pkt->buf = av_buffer_alloc(new_size);
154  if (!pkt->buf)
155  return AVERROR(ENOMEM);
156  if (pkt->size > 0)
157  memcpy(pkt->buf->data, pkt->data, pkt->size);
158  pkt->data = pkt->buf->data;
159  }
160  pkt->size += grow_by;
161  memset(pkt->data + pkt->size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
162 
163  return 0;
164 }
165 
167 {
168  if (size >= INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
169  return AVERROR(EINVAL);
170 
173  if (!pkt->buf)
174  return AVERROR(ENOMEM);
175 
176  pkt->data = data;
177  pkt->size = size;
178 
179  return 0;
180 }
181 
182 #if FF_API_AVPACKET_OLD_API
184 #define ALLOC_MALLOC(data, size) data = av_malloc(size)
185 #define ALLOC_BUF(data, size) \
186 do { \
187  av_buffer_realloc(&pkt->buf, size); \
188  data = pkt->buf ? pkt->buf->data : NULL; \
189 } while (0)
190 
191 #define DUP_DATA(dst, src, size, padding, ALLOC) \
192  do { \
193  void *data; \
194  if (padding) { \
195  if ((unsigned)(size) > \
196  (unsigned)(size) + AV_INPUT_BUFFER_PADDING_SIZE) \
197  goto failed_alloc; \
198  ALLOC(data, size + AV_INPUT_BUFFER_PADDING_SIZE); \
199  } else { \
200  ALLOC(data, size); \
201  } \
202  if (!data) \
203  goto failed_alloc; \
204  memcpy(data, src, size); \
205  if (padding) \
206  memset((uint8_t *)data + size, 0, \
207  AV_INPUT_BUFFER_PADDING_SIZE); \
208  dst = data; \
209  } while (0)
210 
211 /* Makes duplicates of data, side_data, but does not copy any other fields */
212 static int copy_packet_data(AVPacket *pkt, const AVPacket *src, int dup)
213 {
214  pkt->data = NULL;
215  pkt->side_data = NULL;
216  pkt->side_data_elems = 0;
217  if (pkt->buf) {
218  AVBufferRef *ref = av_buffer_ref(src->buf);
219  if (!ref)
220  return AVERROR(ENOMEM);
221  pkt->buf = ref;
222  pkt->data = ref->data;
223  } else {
224  DUP_DATA(pkt->data, src->data, pkt->size, 1, ALLOC_BUF);
225  }
226  if (src->side_data_elems && dup) {
227  pkt->side_data = src->side_data;
228  pkt->side_data_elems = src->side_data_elems;
229  }
230  if (src->side_data_elems && !dup) {
232  }
233  return 0;
234 
235 failed_alloc:
237  return AVERROR(ENOMEM);
238 }
239 
241 {
242  if (src->side_data_elems) {
243  int i;
244  DUP_DATA(pkt->side_data, src->side_data,
245  src->side_data_elems * sizeof(*src->side_data), 0, ALLOC_MALLOC);
246  if (src != pkt) {
247  memset(pkt->side_data, 0,
248  src->side_data_elems * sizeof(*src->side_data));
249  }
250  for (i = 0; i < src->side_data_elems; i++) {
251  DUP_DATA(pkt->side_data[i].data, src->side_data[i].data,
252  src->side_data[i].size, 1, ALLOC_MALLOC);
253  pkt->side_data[i].size = src->side_data[i].size;
254  pkt->side_data[i].type = src->side_data[i].type;
255  }
256  }
257  pkt->side_data_elems = src->side_data_elems;
258  return 0;
259 
260 failed_alloc:
262  return AVERROR(ENOMEM);
263 }
264 
266 {
267  AVPacket tmp_pkt;
268 
269  if (!pkt->buf && pkt->data) {
270  tmp_pkt = *pkt;
271  return copy_packet_data(pkt, &tmp_pkt, 1);
272  }
273  return 0;
274 }
275 
277 {
278  *dst = *src;
279  return copy_packet_data(dst, src, 0);
280 }
282 #endif
283 
285 {
286  int i;
287  for (i = 0; i < pkt->side_data_elems; i++)
290  pkt->side_data_elems = 0;
291 }
292 
293 #if FF_API_AVPACKET_OLD_API
296 {
297  if (pkt) {
298  if (pkt->buf)
300  pkt->data = NULL;
301  pkt->size = 0;
302 
304  }
305 }
307 #endif
308 
310  uint8_t *data, size_t size)
311 {
313  int i, elems = pkt->side_data_elems;
314 
315  for (i = 0; i < elems; i++) {
316  AVPacketSideData *sd = &pkt->side_data[i];
317 
318  if (sd->type == type) {
319  av_free(sd->data);
320  sd->data = data;
321  sd->size = size;
322  return 0;
323  }
324  }
325 
326  if ((unsigned)elems + 1 > AV_PKT_DATA_NB)
327  return AVERROR(ERANGE);
328 
329  tmp = av_realloc(pkt->side_data, (elems + 1) * sizeof(*tmp));
330  if (!tmp)
331  return AVERROR(ENOMEM);
332 
333  pkt->side_data = tmp;
334  pkt->side_data[elems].data = data;
335  pkt->side_data[elems].size = size;
336  pkt->side_data[elems].type = type;
337  pkt->side_data_elems++;
338 
339  return 0;
340 }
341 
342 
345 {
346  int ret;
347  uint8_t *data;
348 
349 #if FF_API_BUFFER_SIZE_T
350  if ((unsigned)size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
351 #else
352  if (size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
353 #endif
354  return NULL;
356  if (!data)
357  return NULL;
358 
360  if (ret < 0) {
361  av_freep(&data);
362  return NULL;
363  }
364 
365  return data;
366 }
367 
370 {
371  int i;
372 
373  for (i = 0; i < pkt->side_data_elems; i++) {
374  if (pkt->side_data[i].type == type) {
375  if (size)
376  *size = pkt->side_data[i].size;
377  return pkt->side_data[i].data;
378  }
379  }
380  if (size)
381  *size = 0;
382  return NULL;
383 }
384 
386 {
387  switch(type) {
388  case AV_PKT_DATA_PALETTE: return "Palette";
389  case AV_PKT_DATA_NEW_EXTRADATA: return "New Extradata";
390  case AV_PKT_DATA_PARAM_CHANGE: return "Param Change";
391  case AV_PKT_DATA_H263_MB_INFO: return "H263 MB Info";
392  case AV_PKT_DATA_REPLAYGAIN: return "Replay Gain";
393  case AV_PKT_DATA_DISPLAYMATRIX: return "Display Matrix";
394  case AV_PKT_DATA_STEREO3D: return "Stereo 3D";
395  case AV_PKT_DATA_AUDIO_SERVICE_TYPE: return "Audio Service Type";
396  case AV_PKT_DATA_QUALITY_STATS: return "Quality stats";
397  case AV_PKT_DATA_FALLBACK_TRACK: return "Fallback track";
398  case AV_PKT_DATA_CPB_PROPERTIES: return "CPB properties";
399  case AV_PKT_DATA_SKIP_SAMPLES: return "Skip Samples";
400  case AV_PKT_DATA_JP_DUALMONO: return "JP Dual Mono";
401  case AV_PKT_DATA_STRINGS_METADATA: return "Strings Metadata";
402  case AV_PKT_DATA_SUBTITLE_POSITION: return "Subtitle Position";
403  case AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL: return "Matroska BlockAdditional";
404  case AV_PKT_DATA_WEBVTT_IDENTIFIER: return "WebVTT ID";
405  case AV_PKT_DATA_WEBVTT_SETTINGS: return "WebVTT Settings";
406  case AV_PKT_DATA_METADATA_UPDATE: return "Metadata Update";
407  case AV_PKT_DATA_MPEGTS_STREAM_ID: return "MPEGTS Stream ID";
408  case AV_PKT_DATA_MASTERING_DISPLAY_METADATA: return "Mastering display metadata";
409  case AV_PKT_DATA_CONTENT_LIGHT_LEVEL: return "Content light level metadata";
410  case AV_PKT_DATA_SPHERICAL: return "Spherical Mapping";
411  case AV_PKT_DATA_A53_CC: return "A53 Closed Captions";
412  case AV_PKT_DATA_ENCRYPTION_INIT_INFO: return "Encryption initialization data";
413  case AV_PKT_DATA_ENCRYPTION_INFO: return "Encryption info";
414  case AV_PKT_DATA_AFD: return "Active Format Description data";
415  case AV_PKT_DATA_PRFT: return "Producer Reference Time";
416  case AV_PKT_DATA_ICC_PROFILE: return "ICC Profile";
417  case AV_PKT_DATA_DOVI_CONF: return "DOVI configuration record";
418  case AV_PKT_DATA_S12M_TIMECODE: return "SMPTE ST 12-1:2014 timecode";
419  }
420  return NULL;
421 }
422 
423 #if FF_API_MERGE_SD_API
424 
425 #define FF_MERGE_MARKER 0x8c4d9d108e25e9feULL
426 
428  if(pkt->side_data_elems){
429  AVBufferRef *buf;
430  int i;
431  uint8_t *p;
432  uint64_t size= pkt->size + 8LL + AV_INPUT_BUFFER_PADDING_SIZE;
433  AVPacket old= *pkt;
434  for (i=0; i<old.side_data_elems; i++) {
435  size += old.side_data[i].size + 5LL;
436  }
437  if (size > INT_MAX)
438  return AVERROR(EINVAL);
439  buf = av_buffer_alloc(size);
440  if (!buf)
441  return AVERROR(ENOMEM);
442  pkt->buf = buf;
443  pkt->data = p = buf->data;
445  bytestream_put_buffer(&p, old.data, old.size);
446  for (i=old.side_data_elems-1; i>=0; i--) {
448  bytestream_put_be32(&p, old.side_data[i].size);
449  *p++ = old.side_data[i].type | ((i==old.side_data_elems-1)*128);
450  }
451  bytestream_put_be64(&p, FF_MERGE_MARKER);
452  av_assert0(p-pkt->data == pkt->size);
453  memset(p, 0, AV_INPUT_BUFFER_PADDING_SIZE);
454  av_packet_unref(&old);
455  pkt->side_data_elems = 0;
456  pkt->side_data = NULL;
457  return 1;
458  }
459  return 0;
460 }
461 
463  if (!pkt->side_data_elems && pkt->size >12 && AV_RB64(pkt->data + pkt->size - 8) == FF_MERGE_MARKER){
464  int i;
465  unsigned int size;
466  uint8_t *p;
467 
468  p = pkt->data + pkt->size - 8 - 5;
469  for (i=1; ; i++){
470  size = AV_RB32(p);
471  if (size>INT_MAX - 5 || p - pkt->data < size)
472  return 0;
473  if (p[4]&128)
474  break;
475  if (p - pkt->data < size + 5)
476  return 0;
477  p-= size+5;
478  }
479 
480  if (i > AV_PKT_DATA_NB)
481  return AVERROR(ERANGE);
482 
483  pkt->side_data = av_malloc_array(i, sizeof(*pkt->side_data));
484  if (!pkt->side_data)
485  return AVERROR(ENOMEM);
486 
487  p= pkt->data + pkt->size - 8 - 5;
488  for (i=0; ; i++){
489  size= AV_RB32(p);
490  av_assert0(size<=INT_MAX - 5 && p - pkt->data >= size);
492  pkt->side_data[i].size = size;
493  pkt->side_data[i].type = p[4]&127;
494  if (!pkt->side_data[i].data)
495  return AVERROR(ENOMEM);
496  memcpy(pkt->side_data[i].data, p-size, size);
497  pkt->size -= size + 5;
498  if(p[4]&128)
499  break;
500  p-= size+5;
501  }
502  pkt->size -= 8;
503  pkt->side_data_elems = i+1;
504  return 1;
505  }
506  return 0;
507 }
508 #endif
509 
510 #if FF_API_BUFFER_SIZE_T
512 #else
514 #endif
515 {
516  uint8_t *data = NULL;
517  *size = 0;
518 
519  if (!dict)
520  return NULL;
521 
522  for (int pass = 0; pass < 2; pass++) {
523  const AVDictionaryEntry *t = NULL;
524  size_t total_length = 0;
525 
526  while ((t = av_dict_get(dict, "", t, AV_DICT_IGNORE_SUFFIX))) {
527  for (int i = 0; i < 2; i++) {
528  const char *str = i ? t->value : t->key;
529  const size_t len = strlen(str) + 1;
530 
531  if (pass)
532  memcpy(data + total_length, str, len);
533 #if FF_API_BUFFER_SIZE_T
534  else if (len > INT_MAX - total_length)
535 #else
536  else if (len > SIZE_MAX - total_length)
537 #endif
538  return NULL;
539  total_length += len;
540  }
541  }
542  if (pass)
543  break;
544  data = av_malloc(total_length);
545  if (!data)
546  return NULL;
547  *size = total_length;
548  }
549 
550  return data;
551 }
552 
553 #if FF_API_BUFFER_SIZE_T
555 #else
556 int av_packet_unpack_dictionary(const uint8_t *data, size_t size,
557  AVDictionary **dict)
558 #endif
559 {
560  const uint8_t *end;
561  int ret;
562 
563  if (!dict || !data || !size)
564  return 0;
565  end = data + size;
566  if (size && end[-1])
567  return AVERROR_INVALIDDATA;
568  while (data < end) {
569  const uint8_t *key = data;
570  const uint8_t *val = data + strlen(key) + 1;
571 
572  if (val >= end || !*key)
573  return AVERROR_INVALIDDATA;
574 
575  ret = av_dict_set(dict, key, val, 0);
576  if (ret < 0)
577  return ret;
578  data = val + strlen(val) + 1;
579  }
580 
581  return 0;
582 }
583 
586 {
587  int i;
588 
589  for (i = 0; i < pkt->side_data_elems; i++) {
590  if (pkt->side_data[i].type == type) {
591  if (size > pkt->side_data[i].size)
592  return AVERROR(ENOMEM);
593  pkt->side_data[i].size = size;
594  return 0;
595  }
596  }
597  return AVERROR(ENOENT);
598 }
599 
601 {
602  int i;
603 
604  dst->pts = src->pts;
605  dst->dts = src->dts;
606  dst->pos = src->pos;
607  dst->duration = src->duration;
608 #if FF_API_CONVERGENCE_DURATION
610  dst->convergence_duration = src->convergence_duration;
612 #endif
613  dst->flags = src->flags;
614  dst->stream_index = src->stream_index;
615 
616  dst->side_data = NULL;
617  dst->side_data_elems = 0;
618  for (i = 0; i < src->side_data_elems; i++) {
619  enum AVPacketSideDataType type = src->side_data[i].type;
620  buffer_size_t size = src->side_data[i].size;
621  uint8_t *src_data = src->side_data[i].data;
622  uint8_t *dst_data = av_packet_new_side_data(dst, type, size);
623 
624  if (!dst_data) {
626  return AVERROR(ENOMEM);
627  }
628  memcpy(dst_data, src_data, size);
629  }
630 
631  return 0;
632 }
633 
635 {
639 }
640 
642 {
643  int ret;
644 
645  dst->buf = NULL;
646 
647  ret = av_packet_copy_props(dst, src);
648  if (ret < 0)
649  goto fail;
650 
651  if (!src->buf) {
652  ret = packet_alloc(&dst->buf, src->size);
653  if (ret < 0)
654  goto fail;
655  av_assert1(!src->size || src->data);
656  if (src->size)
657  memcpy(dst->buf->data, src->data, src->size);
658 
659  dst->data = dst->buf->data;
660  } else {
661  dst->buf = av_buffer_ref(src->buf);
662  if (!dst->buf) {
663  ret = AVERROR(ENOMEM);
664  goto fail;
665  }
666  dst->data = src->data;
667  }
668 
669  dst->size = src->size;
670 
671  return 0;
672 fail:
673  av_packet_unref(dst);
674  return ret;
675 }
676 
678 {
679  AVPacket *ret = av_packet_alloc();
680 
681  if (!ret)
682  return ret;
683 
684  if (av_packet_ref(ret, src))
685  av_packet_free(&ret);
686 
687  return ret;
688 }
689 
691 {
692  *dst = *src;
694 }
695 
697 {
698  int ret;
699 
700  if (pkt->buf)
701  return 0;
702 
703  ret = packet_alloc(&pkt->buf, pkt->size);
704  if (ret < 0)
705  return ret;
706  av_assert1(!pkt->size || pkt->data);
707  if (pkt->size)
708  memcpy(pkt->buf->data, pkt->data, pkt->size);
709 
710  pkt->data = pkt->buf->data;
711 
712  return 0;
713 }
714 
716 {
717  AVBufferRef *buf = NULL;
718  int ret;
719 
720  if (pkt->buf && av_buffer_is_writable(pkt->buf))
721  return 0;
722 
723  ret = packet_alloc(&buf, pkt->size);
724  if (ret < 0)
725  return ret;
726  av_assert1(!pkt->size || pkt->data);
727  if (pkt->size)
728  memcpy(buf->data, pkt->data, pkt->size);
729 
731  pkt->buf = buf;
732  pkt->data = buf->data;
733 
734  return 0;
735 }
736 
738 {
739  if (pkt->pts != AV_NOPTS_VALUE)
740  pkt->pts = av_rescale_q(pkt->pts, src_tb, dst_tb);
741  if (pkt->dts != AV_NOPTS_VALUE)
742  pkt->dts = av_rescale_q(pkt->dts, src_tb, dst_tb);
743  if (pkt->duration > 0)
744  pkt->duration = av_rescale_q(pkt->duration, src_tb, dst_tb);
745 #if FF_API_CONVERGENCE_DURATION
747  if (pkt->convergence_duration > 0)
748  pkt->convergence_duration = av_rescale_q(pkt->convergence_duration, src_tb, dst_tb);
750 #endif
751 }
752 
753 int avpriv_packet_list_put(PacketList **packet_buffer,
754  PacketList **plast_pktl,
755  AVPacket *pkt,
756  int (*copy)(AVPacket *dst, const AVPacket *src),
757  int flags)
758 {
759  PacketList *pktl = av_mallocz(sizeof(PacketList));
760  int ret;
761 
762  if (!pktl)
763  return AVERROR(ENOMEM);
764 
765  if (copy) {
766  ret = copy(&pktl->pkt, pkt);
767  if (ret < 0) {
768  av_free(pktl);
769  return ret;
770  }
771  } else {
773  if (ret < 0) {
774  av_free(pktl);
775  return ret;
776  }
777  av_packet_move_ref(&pktl->pkt, pkt);
778  }
779 
780  if (*packet_buffer)
781  (*plast_pktl)->next = pktl;
782  else
783  *packet_buffer = pktl;
784 
785  /* Add the packet in the buffered packet list. */
786  *plast_pktl = pktl;
787  return 0;
788 }
789 
791  PacketList **pkt_buffer_end,
792  AVPacket *pkt)
793 {
794  PacketList *pktl;
795  if (!*pkt_buffer)
796  return AVERROR(EAGAIN);
797  pktl = *pkt_buffer;
798  *pkt = pktl->pkt;
799  *pkt_buffer = pktl->next;
800  if (!pktl->next)
801  *pkt_buffer_end = NULL;
802  av_freep(&pktl);
803  return 0;
804 }
805 
806 void avpriv_packet_list_free(PacketList **pkt_buf, PacketList **pkt_buf_end)
807 {
808  PacketList *tmp = *pkt_buf;
809 
810  while (tmp) {
811  PacketList *pktl = tmp;
812  tmp = pktl->next;
813  av_packet_unref(&pktl->pkt);
814  av_freep(&pktl);
815  }
816  *pkt_buf = NULL;
817  *pkt_buf_end = NULL;
818 }
819 
820 int ff_side_data_set_encoder_stats(AVPacket *pkt, int quality, int64_t *error, int error_count, int pict_type)
821 {
822  uint8_t *side_data;
823  buffer_size_t side_data_size;
824  int i;
825 
826  side_data = av_packet_get_side_data(pkt, AV_PKT_DATA_QUALITY_STATS, &side_data_size);
827  if (!side_data) {
828  side_data_size = 4+4+8*error_count;
830  side_data_size);
831  }
832 
833  if (!side_data || side_data_size < 4+4+8*error_count)
834  return AVERROR(ENOMEM);
835 
836  AV_WL32(side_data , quality );
837  side_data[4] = pict_type;
838  side_data[5] = error_count;
839  for (i = 0; i<error_count; i++)
840  AV_WL64(side_data+8 + 8*i , error[i]);
841 
842  return 0;
843 }
844 
845 int ff_side_data_set_prft(AVPacket *pkt, int64_t timestamp)
846 {
848  uint8_t *side_data;
849  buffer_size_t side_data_size;
850 
851  side_data = av_packet_get_side_data(pkt, AV_PKT_DATA_PRFT, &side_data_size);
852  if (!side_data) {
853  side_data_size = sizeof(AVProducerReferenceTime);
854  side_data = av_packet_new_side_data(pkt, AV_PKT_DATA_PRFT, side_data_size);
855  }
856 
857  if (!side_data || side_data_size < sizeof(AVProducerReferenceTime))
858  return AVERROR(ENOMEM);
859 
860  prft = (AVProducerReferenceTime *)side_data;
861  prft->wallclock = timestamp;
862  prft->flags = 0;
863 
864  return 0;
865 }
static double val(void *priv, double ch)
Definition: aeval.c:76
uint8_t
simple assert() macros that are a bit more flexible than ISO C assert().
#define av_assert1(cond)
assert() equivalent, that does not lie in speed critical code.
Definition: avassert.h:53
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
int av_dup_packet(AVPacket *pkt)
Definition: avpacket.c:265
int av_packet_unpack_dictionary(const uint8_t *data, int size, AVDictionary **dict)
Definition: avpacket.c:554
#define DUP_DATA(dst, src, size, padding, ALLOC)
Definition: avpacket.c:191
static int packet_alloc(AVBufferRef **buf, int size)
Definition: avpacket.c:84
int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type, buffer_size_t size)
Definition: avpacket.c:584
#define ALLOC_BUF(data, size)
Definition: avpacket.c:185
void avpriv_packet_list_free(PacketList **pkt_buf, PacketList **pkt_buf_end)
Wipe the list and unref all the packets in it.
Definition: avpacket.c:806
#define ALLOC_MALLOC(data, size)
Definition: avpacket.c:184
#define FF_MERGE_MARKER
Definition: avpacket.c:425
int ff_side_data_set_encoder_stats(AVPacket *pkt, int quality, int64_t *error, int error_count, int pict_type)
Definition: avpacket.c:820
int av_copy_packet_side_data(AVPacket *pkt, const AVPacket *src)
Definition: avpacket.c:240
uint8_t * av_packet_pack_dictionary(AVDictionary *dict, int *size)
Definition: avpacket.c:511
int av_packet_split_side_data(AVPacket *pkt)
Definition: avpacket.c:462
int av_copy_packet(AVPacket *dst, const AVPacket *src)
Definition: avpacket.c:276
static void get_packet_defaults(AVPacket *pkt)
Definition: avpacket.c:55
FF_DISABLE_DEPRECATION_WARNINGS void av_free_packet(AVPacket *pkt)
Definition: avpacket.c:295
int avpriv_packet_list_get(PacketList **pkt_buffer, PacketList **pkt_buffer_end, AVPacket *pkt)
Remove the oldest AVPacket in the list and return it.
Definition: avpacket.c:790
static int copy_packet_data(AVPacket *pkt, const AVPacket *src, int dup)
Definition: avpacket.c:212
int ff_side_data_set_prft(AVPacket *pkt, int64_t timestamp)
Definition: avpacket.c:845
void av_init_packet(AVPacket *pkt)
Definition: avpacket.c:36
int avpriv_packet_list_put(PacketList **packet_buffer, PacketList **plast_pktl, AVPacket *pkt, int(*copy)(AVPacket *dst, const AVPacket *src), int flags)
Append an AVPacket to the list.
Definition: avpacket.c:753
int av_packet_merge_side_data(AVPacket *pkt)
Definition: avpacket.c:427
uint8_t * av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type, buffer_size_t *size)
Definition: avpacket.c:368
uint8_t * av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type, buffer_size_t size)
Definition: avpacket.c:343
#define AV_RB32
Definition: intreadwrite.h:130
#define AV_RB64
Definition: intreadwrite.h:164
static av_always_inline void bytestream_put_buffer(uint8_t **b, const uint8_t *src, unsigned int size)
Definition: bytestream.h:372
#define flags(name, subs,...)
Definition: cbs_av1.c:561
#define fail()
Definition: checkasm.h:133
common internal and external API header
#define NULL
Definition: coverity.c:32
#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_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
Definition: avpacket.c:75
FF_ENABLE_DEPRECATION_WARNINGS void av_packet_free_side_data(AVPacket *pkt)
Convenience function to free all the side data stored.
Definition: avpacket.c:284
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:634
int av_grow_packet(AVPacket *pkt, int grow_by)
Increase packet size, correctly zeroing padding.
Definition: avpacket.c:122
const char * av_packet_side_data_name(enum AVPacketSideDataType type)
Definition: avpacket.c:385
int av_packet_from_data(AVPacket *pkt, uint8_t *data, int size)
Initialize a reference-counted packet from av_malloc()ed data.
Definition: avpacket.c:166
int av_packet_make_refcounted(AVPacket *pkt)
Ensure the data described by a given packet is reference counted.
Definition: avpacket.c:696
FF_ENABLE_DEPRECATION_WARNINGS int av_packet_add_side_data(AVPacket *pkt, enum AVPacketSideDataType type, uint8_t *data, size_t size)
Wrap an existing array as a packet side data.
Definition: avpacket.c:309
void av_packet_move_ref(AVPacket *dst, AVPacket *src)
Move every field in src to dst and reset src.
Definition: avpacket.c:690
AVPacketSideDataType
Definition: packet.h:40
int av_packet_make_writable(AVPacket *pkt)
Create a writable reference for the data described by a given packet, avoiding data copy if possible.
Definition: avpacket.c:715
AVPacket * av_packet_alloc(void)
Allocate an AVPacket and set its fields to default values.
Definition: avpacket.c:64
AVPacket * av_packet_clone(const AVPacket *src)
Create a new packet that references the same data as src.
Definition: avpacket.c:677
void av_shrink_packet(AVPacket *pkt, int size)
Reduce packet size, correctly zeroing padding.
Definition: avpacket.c:114
int av_packet_ref(AVPacket *dst, const AVPacket *src)
Setup a new reference to the data described by a given packet.
Definition: avpacket.c:641
int av_packet_copy_props(AVPacket *dst, const AVPacket *src)
Copy only "properties" fields from src to dst.
Definition: avpacket.c:600
int av_new_packet(AVPacket *pkt, int size)
Allocate the payload of a packet and initialize its fields with default values.
Definition: avpacket.c:99
void av_packet_rescale_ts(AVPacket *pkt, AVRational src_tb, AVRational dst_tb)
Convert valid timing fields (timestamps / durations) in a packet from one timebase to another.
Definition: avpacket.c:737
@ AV_PKT_DATA_JP_DUALMONO
An AV_PKT_DATA_JP_DUALMONO side data packet indicates that the packet may contain "dual mono" audio s...
Definition: packet.h:166
@ AV_PKT_DATA_STRINGS_METADATA
A list of zero terminated key/value strings.
Definition: packet.h:172
@ AV_PKT_DATA_S12M_TIMECODE
Timecode which conforms to SMPTE ST 12-1:2014.
Definition: packet.h:291
@ AV_PKT_DATA_SKIP_SAMPLES
Recommmends skipping the specified number of samples.
Definition: packet.h:156
@ AV_PKT_DATA_MPEGTS_STREAM_ID
MPEGTS stream ID as uint8_t, this is required to pass the stream ID information from the demuxer to t...
Definition: packet.h:215
@ AV_PKT_DATA_PRFT
Producer Reference Time data corresponding to the AVProducerReferenceTime struct, usually exported by...
Definition: packet.h:268
@ AV_PKT_DATA_H263_MB_INFO
An AV_PKT_DATA_H263_MB_INFO side data packet contains a number of structures with info about macroblo...
Definition: packet.h:93
@ AV_PKT_DATA_ICC_PROFILE
ICC profile data consisting of an opaque octet buffer following the format described by ISO 15076-1.
Definition: packet.h:274
@ AV_PKT_DATA_MASTERING_DISPLAY_METADATA
Mastering display metadata (based on SMPTE-2086:2014).
Definition: packet.h:222
@ AV_PKT_DATA_AUDIO_SERVICE_TYPE
This side data should be associated with an audio stream and corresponds to enum AVAudioServiceType.
Definition: packet.h:120
@ AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL
Data found in BlockAdditional element of matroska container.
Definition: packet.h:191
@ AV_PKT_DATA_A53_CC
ATSC A53 Part 4 Closed Captions.
Definition: packet.h:242
@ AV_PKT_DATA_SPHERICAL
This side data should be associated with a video stream and corresponds to the AVSphericalMapping str...
Definition: packet.h:228
@ AV_PKT_DATA_QUALITY_STATS
This side data contains quality related information from the encoder.
Definition: packet.h:132
@ AV_PKT_DATA_WEBVTT_SETTINGS
The optional settings (rendering instructions) that immediately follow the timestamp specifier of a W...
Definition: packet.h:202
@ AV_PKT_DATA_METADATA_UPDATE
A list of zero terminated key/value strings.
Definition: packet.h:209
@ AV_PKT_DATA_SUBTITLE_POSITION
Subtitle event position.
Definition: packet.h:183
@ AV_PKT_DATA_PALETTE
An AV_PKT_DATA_PALETTE side data packet contains exactly AVPALETTE_SIZE bytes worth of palette.
Definition: packet.h:46
@ AV_PKT_DATA_ENCRYPTION_INFO
This side data contains encryption info for how to decrypt the packet.
Definition: packet.h:255
@ AV_PKT_DATA_DISPLAYMATRIX
This side data contains a 3x3 transformation matrix describing an affine transformation that needs to...
Definition: packet.h:108
@ AV_PKT_DATA_AFD
Active Format Description data consisting of a single byte as specified in ETSI TS 101 154 using AVAc...
Definition: packet.h:261
@ AV_PKT_DATA_ENCRYPTION_INIT_INFO
This side data is encryption initialization data.
Definition: packet.h:249
@ AV_PKT_DATA_CPB_PROPERTIES
This side data corresponds to the AVCPBProperties struct.
Definition: packet.h:145
@ AV_PKT_DATA_NEW_EXTRADATA
The AV_PKT_DATA_NEW_EXTRADATA is used to notify the codec or the format that the extradata buffer was...
Definition: packet.h:55
@ AV_PKT_DATA_NB
The number of side data types.
Definition: packet.h:301
@ AV_PKT_DATA_PARAM_CHANGE
An AV_PKT_DATA_PARAM_CHANGE side data packet is laid out as follows:
Definition: packet.h:72
@ AV_PKT_DATA_STEREO3D
This side data should be associated with a video stream and contains Stereoscopic 3D information in f...
Definition: packet.h:114
@ AV_PKT_DATA_WEBVTT_IDENTIFIER
The optional first identifier line of a WebVTT cue.
Definition: packet.h:196
@ AV_PKT_DATA_CONTENT_LIGHT_LEVEL
Content light level (based on CTA-861.3).
Definition: packet.h:235
@ AV_PKT_DATA_FALLBACK_TRACK
This side data contains an integer value representing the stream index of a "fallback" track.
Definition: packet.h:140
@ AV_PKT_DATA_REPLAYGAIN
This side data should be associated with an audio stream and contains ReplayGain information in form ...
Definition: packet.h:99
@ AV_PKT_DATA_DOVI_CONF
DOVI configuration ref: dolby-vision-bitstreams-within-the-iso-base-media-file-format-v2....
Definition: packet.h:283
int av_buffer_is_writable(const AVBufferRef *buf)
Definition: buffer.c:133
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
void av_buffer_default_free(void *opaque, uint8_t *data)
Default free callback, which calls av_free() on the buffer data.
Definition: buffer.c:62
AVBufferRef * av_buffer_create(uint8_t *data, buffer_size_t size, void(*free)(void *opaque, uint8_t *data), void *opaque, int flags)
Create an AVBuffer from an existing array.
Definition: buffer.c:29
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
int av_buffer_realloc(AVBufferRef **pbuf, buffer_size_t size)
Reallocate a given buffer.
Definition: buffer.c:169
#define AV_DICT_IGNORE_SUFFIX
Return first entry in a dictionary whose first part corresponds to the search key,...
Definition: dict.h:70
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
Definition: dict.c:70
AVDictionaryEntry * av_dict_get(const AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
Definition: dict.c:40
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
#define AVERROR(e)
Definition: error.h:43
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
Definition: mathematics.c:142
void * av_realloc(void *ptr, size_t size)
Allocate, reallocate, or free a block of memory.
Definition: mem.c:134
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:237
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
cl_device_type type
const char * key
int i
Definition: input.c:407
#define AV_WL64(p, v)
Definition: intreadwrite.h:440
#define AV_WL32(p, v)
Definition: intreadwrite.h:426
common internal API header
int buffer_size_t
Definition: internal.h:306
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:83
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:84
Memory handling functions.
const char data[16]
Definition: mxf.c:142
A reference to a data buffer.
Definition: buffer.h:84
int size
Size of data in bytes.
Definition: buffer.h:97
uint8_t * data
The data buffer.
Definition: buffer.h:92
char * key
Definition: dict.h:82
char * value
Definition: dict.h:83
uint8_t * data
Definition: packet.h:307
enum AVPacketSideDataType type
Definition: packet.h:313
size_t size
Definition: packet.h:311
This structure stores compressed data.
Definition: packet.h:346
int stream_index
Definition: packet.h:371
AVBufferRef * buf
A reference to the reference-counted buffer where the packet data is stored.
Definition: packet.h:352
int flags
A combination of AV_PKT_FLAG values.
Definition: packet.h:375
int size
Definition: packet.h:370
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Definition: packet.h:387
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: packet.h:362
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed.
Definition: packet.h:368
uint8_t * data
Definition: packet.h:369
int64_t pos
byte position in stream, -1 if unknown
Definition: packet.h:389
AVPacketSideData * side_data
Additional packet data that can be provided by the container.
Definition: packet.h:380
int side_data_elems
Definition: packet.h:381
This structure supplies correlation between a packet timestamp and a wall clock production time.
Definition: avcodec.h:503
int64_t wallclock
A UTC timestamp, in microseconds, since Unix epoch (e.g, av_gettime()).
Definition: avcodec.h:507
Rational number (pair of numerator and denominator).
Definition: rational.h:58
struct PacketList * next
AVPacket pkt
#define av_free(p)
#define av_malloc_array(a, b)
#define av_freep(p)
#define av_malloc(s)
static void error(const char *err)
static uint8_t tmp[11]
Definition: aes_ctr.c:27
#define src
Definition: vp8dsp.c:255
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:107
AVPacket * pkt
Definition: movenc.c:59
int size
#define pass
Definition: tx_template.c:347
static void copy(const float *p1, float *p2, const int length)
int len