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utils.c
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1 /*
2  * utils for libavcodec
3  * Copyright (c) 2001 Fabrice Bellard
4  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 /**
24  * @file
25  * utils.
26  */
27 
28 #include "config.h"
29 #include "libavutil/atomic.h"
30 #include "libavutil/attributes.h"
31 #include "libavutil/avassert.h"
32 #include "libavutil/avstring.h"
33 #include "libavutil/bprint.h"
35 #include "libavutil/crc.h"
36 #include "libavutil/frame.h"
37 #include "libavutil/hwcontext.h"
38 #include "libavutil/internal.h"
39 #include "libavutil/mathematics.h"
40 #include "libavutil/mem_internal.h"
41 #include "libavutil/pixdesc.h"
42 #include "libavutil/imgutils.h"
43 #include "libavutil/samplefmt.h"
44 #include "libavutil/dict.h"
45 #include "libavutil/thread.h"
46 #include "avcodec.h"
47 #include "libavutil/opt.h"
48 #include "me_cmp.h"
49 #include "mpegvideo.h"
50 #include "thread.h"
51 #include "frame_thread_encoder.h"
52 #include "internal.h"
53 #include "raw.h"
54 #include "bytestream.h"
55 #include "version.h"
56 #include <stdlib.h>
57 #include <stdarg.h>
58 #include <limits.h>
59 #include <float.h>
60 #if CONFIG_ICONV
61 # include <iconv.h>
62 #endif
63 
64 #include "libavutil/ffversion.h"
65 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
66 
67 #if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS
68 static int default_lockmgr_cb(void **arg, enum AVLockOp op)
69 {
70  void * volatile * mutex = arg;
71  int err;
72 
73  switch (op) {
74  case AV_LOCK_CREATE:
75  return 0;
76  case AV_LOCK_OBTAIN:
77  if (!*mutex) {
79  if (!tmp)
80  return AVERROR(ENOMEM);
81  if ((err = pthread_mutex_init(tmp, NULL))) {
82  av_free(tmp);
83  return AVERROR(err);
84  }
85  if (avpriv_atomic_ptr_cas(mutex, NULL, tmp)) {
87  av_free(tmp);
88  }
89  }
90 
91  if ((err = pthread_mutex_lock(*mutex)))
92  return AVERROR(err);
93 
94  return 0;
95  case AV_LOCK_RELEASE:
96  if ((err = pthread_mutex_unlock(*mutex)))
97  return AVERROR(err);
98 
99  return 0;
100  case AV_LOCK_DESTROY:
101  if (*mutex)
102  pthread_mutex_destroy(*mutex);
103  av_free(*mutex);
104  avpriv_atomic_ptr_cas(mutex, *mutex, NULL);
105  return 0;
106  }
107  return 1;
108 }
109 static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = default_lockmgr_cb;
110 #else
111 static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = NULL;
112 #endif
113 
114 
115 volatile int ff_avcodec_locked;
116 static int volatile entangled_thread_counter = 0;
117 static void *codec_mutex;
118 static void *avformat_mutex;
119 
120 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
121 {
122  uint8_t **p = ptr;
123  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
124  av_freep(p);
125  *size = 0;
126  return;
127  }
128  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
129  memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
130 }
131 
132 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
133 {
134  uint8_t **p = ptr;
135  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
136  av_freep(p);
137  *size = 0;
138  return;
139  }
140  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
141  memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
142 }
143 
144 /* encoder management */
147 
149 {
150  if (c)
151  return c->next;
152  else
153  return first_avcodec;
154 }
155 
156 static av_cold void avcodec_init(void)
157 {
158  static int initialized = 0;
159 
160  if (initialized != 0)
161  return;
162  initialized = 1;
163 
164  if (CONFIG_ME_CMP)
166 }
167 
168 int av_codec_is_encoder(const AVCodec *codec)
169 {
170  return codec && (codec->encode_sub || codec->encode2 ||codec->send_frame);
171 }
172 
173 int av_codec_is_decoder(const AVCodec *codec)
174 {
175  return codec && (codec->decode || codec->send_packet);
176 }
177 
179 {
180  AVCodec **p;
181  avcodec_init();
182  p = last_avcodec;
183  codec->next = NULL;
184 
185  while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, codec))
186  p = &(*p)->next;
187  last_avcodec = &codec->next;
188 
189  if (codec->init_static_data)
190  codec->init_static_data(codec);
191 }
192 
193 #if FF_API_EMU_EDGE
195 {
196  return EDGE_WIDTH;
197 }
198 #endif
199 
200 #if FF_API_SET_DIMENSIONS
202 {
203  int ret = ff_set_dimensions(s, width, height);
204  if (ret < 0) {
205  av_log(s, AV_LOG_WARNING, "Failed to set dimensions %d %d\n", width, height);
206  }
207 }
208 #endif
209 
211 {
212  int ret = av_image_check_size(width, height, 0, s);
213 
214  if (ret < 0)
215  width = height = 0;
216 
217  s->coded_width = width;
218  s->coded_height = height;
219  s->width = AV_CEIL_RSHIFT(width, s->lowres);
220  s->height = AV_CEIL_RSHIFT(height, s->lowres);
221 
222  return ret;
223 }
224 
226 {
227  int ret = av_image_check_sar(avctx->width, avctx->height, sar);
228 
229  if (ret < 0) {
230  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
231  sar.num, sar.den);
232  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
233  return ret;
234  } else {
235  avctx->sample_aspect_ratio = sar;
236  }
237  return 0;
238 }
239 
241  enum AVMatrixEncoding matrix_encoding)
242 {
243  AVFrameSideData *side_data;
244  enum AVMatrixEncoding *data;
245 
247  if (!side_data)
249  sizeof(enum AVMatrixEncoding));
250 
251  if (!side_data)
252  return AVERROR(ENOMEM);
253 
254  data = (enum AVMatrixEncoding*)side_data->data;
255  *data = matrix_encoding;
256 
257  return 0;
258 }
259 
261  int linesize_align[AV_NUM_DATA_POINTERS])
262 {
263  int i;
264  int w_align = 1;
265  int h_align = 1;
267 
268  if (desc) {
269  w_align = 1 << desc->log2_chroma_w;
270  h_align = 1 << desc->log2_chroma_h;
271  }
272 
273  switch (s->pix_fmt) {
274  case AV_PIX_FMT_YUV420P:
275  case AV_PIX_FMT_YUYV422:
276  case AV_PIX_FMT_YVYU422:
277  case AV_PIX_FMT_UYVY422:
278  case AV_PIX_FMT_YUV422P:
279  case AV_PIX_FMT_YUV440P:
280  case AV_PIX_FMT_YUV444P:
281  case AV_PIX_FMT_GBRP:
282  case AV_PIX_FMT_GBRAP:
283  case AV_PIX_FMT_GRAY8:
284  case AV_PIX_FMT_GRAY16BE:
285  case AV_PIX_FMT_GRAY16LE:
286  case AV_PIX_FMT_YUVJ420P:
287  case AV_PIX_FMT_YUVJ422P:
288  case AV_PIX_FMT_YUVJ440P:
289  case AV_PIX_FMT_YUVJ444P:
290  case AV_PIX_FMT_YUVA420P:
291  case AV_PIX_FMT_YUVA422P:
292  case AV_PIX_FMT_YUVA444P:
345  case AV_PIX_FMT_GBRP9LE:
346  case AV_PIX_FMT_GBRP9BE:
347  case AV_PIX_FMT_GBRP10LE:
348  case AV_PIX_FMT_GBRP10BE:
349  case AV_PIX_FMT_GBRP12LE:
350  case AV_PIX_FMT_GBRP12BE:
351  case AV_PIX_FMT_GBRP14LE:
352  case AV_PIX_FMT_GBRP14BE:
353  case AV_PIX_FMT_GBRP16LE:
354  case AV_PIX_FMT_GBRP16BE:
359  w_align = 16; //FIXME assume 16 pixel per macroblock
360  h_align = 16 * 2; // interlaced needs 2 macroblocks height
361  break;
362  case AV_PIX_FMT_YUV411P:
363  case AV_PIX_FMT_YUVJ411P:
365  w_align = 32;
366  h_align = 16 * 2;
367  break;
368  case AV_PIX_FMT_YUV410P:
369  if (s->codec_id == AV_CODEC_ID_SVQ1) {
370  w_align = 64;
371  h_align = 64;
372  }
373  break;
374  case AV_PIX_FMT_RGB555:
375  if (s->codec_id == AV_CODEC_ID_RPZA) {
376  w_align = 4;
377  h_align = 4;
378  }
379  break;
380  case AV_PIX_FMT_PAL8:
381  case AV_PIX_FMT_BGR8:
382  case AV_PIX_FMT_RGB8:
383  if (s->codec_id == AV_CODEC_ID_SMC ||
385  w_align = 4;
386  h_align = 4;
387  }
388  if (s->codec_id == AV_CODEC_ID_JV) {
389  w_align = 8;
390  h_align = 8;
391  }
392  break;
393  case AV_PIX_FMT_BGR24:
394  if ((s->codec_id == AV_CODEC_ID_MSZH) ||
395  (s->codec_id == AV_CODEC_ID_ZLIB)) {
396  w_align = 4;
397  h_align = 4;
398  }
399  break;
400  case AV_PIX_FMT_RGB24:
401  if (s->codec_id == AV_CODEC_ID_CINEPAK) {
402  w_align = 4;
403  h_align = 4;
404  }
405  break;
406  default:
407  break;
408  }
409 
410  if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
411  w_align = FFMAX(w_align, 8);
412  }
413 
414  *width = FFALIGN(*width, w_align);
415  *height = FFALIGN(*height, h_align);
416  if (s->codec_id == AV_CODEC_ID_H264 || s->lowres) {
417  // some of the optimized chroma MC reads one line too much
418  // which is also done in mpeg decoders with lowres > 0
419  *height += 2;
420 
421  // H.264 uses edge emulation for out of frame motion vectors, for this
422  // it requires a temporary area large enough to hold a 21x21 block,
423  // increasing witdth ensure that the temporary area is large enough,
424  // the next rounded up width is 32
425  *width = FFMAX(*width, 32);
426  }
427 
428  for (i = 0; i < 4; i++)
429  linesize_align[i] = STRIDE_ALIGN;
430 }
431 
433 {
435  int chroma_shift = desc->log2_chroma_w;
436  int linesize_align[AV_NUM_DATA_POINTERS];
437  int align;
438 
439  avcodec_align_dimensions2(s, width, height, linesize_align);
440  align = FFMAX(linesize_align[0], linesize_align[3]);
441  linesize_align[1] <<= chroma_shift;
442  linesize_align[2] <<= chroma_shift;
443  align = FFMAX3(align, linesize_align[1], linesize_align[2]);
444  *width = FFALIGN(*width, align);
445 }
446 
447 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
448 {
449  if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
450  return AVERROR(EINVAL);
451  pos--;
452 
453  *xpos = (pos&1) * 128;
454  *ypos = ((pos>>1)^(pos<4)) * 128;
455 
456  return 0;
457 }
458 
460 {
461  int pos, xout, yout;
462 
463  for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
464  if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
465  return pos;
466  }
468 }
469 
471  enum AVSampleFormat sample_fmt, const uint8_t *buf,
472  int buf_size, int align)
473 {
474  int ch, planar, needed_size, ret = 0;
475 
476  needed_size = av_samples_get_buffer_size(NULL, nb_channels,
477  frame->nb_samples, sample_fmt,
478  align);
479  if (buf_size < needed_size)
480  return AVERROR(EINVAL);
481 
482  planar = av_sample_fmt_is_planar(sample_fmt);
483  if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
484  if (!(frame->extended_data = av_mallocz_array(nb_channels,
485  sizeof(*frame->extended_data))))
486  return AVERROR(ENOMEM);
487  } else {
488  frame->extended_data = frame->data;
489  }
490 
491  if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
492  (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
493  sample_fmt, align)) < 0) {
494  if (frame->extended_data != frame->data)
495  av_freep(&frame->extended_data);
496  return ret;
497  }
498  if (frame->extended_data != frame->data) {
499  for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
500  frame->data[ch] = frame->extended_data[ch];
501  }
502 
503  return ret;
504 }
505 
507 {
508  FramePool *pool = avctx->internal->pool;
509  int i, ret;
510 
511  switch (avctx->codec_type) {
512  case AVMEDIA_TYPE_VIDEO: {
513  uint8_t *data[4];
514  int linesize[4];
515  int size[4] = { 0 };
516  int w = frame->width;
517  int h = frame->height;
518  int tmpsize, unaligned;
519 
520  if (pool->format == frame->format &&
521  pool->width == frame->width && pool->height == frame->height)
522  return 0;
523 
524  avcodec_align_dimensions2(avctx, &w, &h, pool->stride_align);
525 
526  do {
527  // NOTE: do not align linesizes individually, this breaks e.g. assumptions
528  // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
529  ret = av_image_fill_linesizes(linesize, avctx->pix_fmt, w);
530  if (ret < 0)
531  return ret;
532  // increase alignment of w for next try (rhs gives the lowest bit set in w)
533  w += w & ~(w - 1);
534 
535  unaligned = 0;
536  for (i = 0; i < 4; i++)
537  unaligned |= linesize[i] % pool->stride_align[i];
538  } while (unaligned);
539 
540  tmpsize = av_image_fill_pointers(data, avctx->pix_fmt, h,
541  NULL, linesize);
542  if (tmpsize < 0)
543  return -1;
544 
545  for (i = 0; i < 3 && data[i + 1]; i++)
546  size[i] = data[i + 1] - data[i];
547  size[i] = tmpsize - (data[i] - data[0]);
548 
549  for (i = 0; i < 4; i++) {
550  av_buffer_pool_uninit(&pool->pools[i]);
551  pool->linesize[i] = linesize[i];
552  if (size[i]) {
553  pool->pools[i] = av_buffer_pool_init(size[i] + 16 + STRIDE_ALIGN - 1,
554  CONFIG_MEMORY_POISONING ?
555  NULL :
557  if (!pool->pools[i]) {
558  ret = AVERROR(ENOMEM);
559  goto fail;
560  }
561  }
562  }
563  pool->format = frame->format;
564  pool->width = frame->width;
565  pool->height = frame->height;
566 
567  break;
568  }
569  case AVMEDIA_TYPE_AUDIO: {
570  int ch = av_frame_get_channels(frame); //av_get_channel_layout_nb_channels(frame->channel_layout);
571  int planar = av_sample_fmt_is_planar(frame->format);
572  int planes = planar ? ch : 1;
573 
574  if (pool->format == frame->format && pool->planes == planes &&
575  pool->channels == ch && frame->nb_samples == pool->samples)
576  return 0;
577 
578  av_buffer_pool_uninit(&pool->pools[0]);
579  ret = av_samples_get_buffer_size(&pool->linesize[0], ch,
580  frame->nb_samples, frame->format, 0);
581  if (ret < 0)
582  goto fail;
583 
584  pool->pools[0] = av_buffer_pool_init(pool->linesize[0], NULL);
585  if (!pool->pools[0]) {
586  ret = AVERROR(ENOMEM);
587  goto fail;
588  }
589 
590  pool->format = frame->format;
591  pool->planes = planes;
592  pool->channels = ch;
593  pool->samples = frame->nb_samples;
594  break;
595  }
596  default: av_assert0(0);
597  }
598  return 0;
599 fail:
600  for (i = 0; i < 4; i++)
601  av_buffer_pool_uninit(&pool->pools[i]);
602  pool->format = -1;
603  pool->planes = pool->channels = pool->samples = 0;
604  pool->width = pool->height = 0;
605  return ret;
606 }
607 
609 {
610  FramePool *pool = avctx->internal->pool;
611  int planes = pool->planes;
612  int i;
613 
614  frame->linesize[0] = pool->linesize[0];
615 
616  if (planes > AV_NUM_DATA_POINTERS) {
617  frame->extended_data = av_mallocz_array(planes, sizeof(*frame->extended_data));
618  frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS;
620  sizeof(*frame->extended_buf));
621  if (!frame->extended_data || !frame->extended_buf) {
622  av_freep(&frame->extended_data);
623  av_freep(&frame->extended_buf);
624  return AVERROR(ENOMEM);
625  }
626  } else {
627  frame->extended_data = frame->data;
628  av_assert0(frame->nb_extended_buf == 0);
629  }
630 
631  for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) {
632  frame->buf[i] = av_buffer_pool_get(pool->pools[0]);
633  if (!frame->buf[i])
634  goto fail;
635  frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
636  }
637  for (i = 0; i < frame->nb_extended_buf; i++) {
638  frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]);
639  if (!frame->extended_buf[i])
640  goto fail;
641  frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
642  }
643 
644  if (avctx->debug & FF_DEBUG_BUFFERS)
645  av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p", frame);
646 
647  return 0;
648 fail:
649  av_frame_unref(frame);
650  return AVERROR(ENOMEM);
651 }
652 
654 {
655  FramePool *pool = s->internal->pool;
657  int i;
658 
659  if (pic->data[0] || pic->data[1] || pic->data[2] || pic->data[3]) {
660  av_log(s, AV_LOG_ERROR, "pic->data[*]!=NULL in avcodec_default_get_buffer\n");
661  return -1;
662  }
663 
664  if (!desc) {
665  av_log(s, AV_LOG_ERROR,
666  "Unable to get pixel format descriptor for format %s\n",
668  return AVERROR(EINVAL);
669  }
670 
671  memset(pic->data, 0, sizeof(pic->data));
672  pic->extended_data = pic->data;
673 
674  for (i = 0; i < 4 && pool->pools[i]; i++) {
675  pic->linesize[i] = pool->linesize[i];
676 
677  pic->buf[i] = av_buffer_pool_get(pool->pools[i]);
678  if (!pic->buf[i])
679  goto fail;
680 
681  pic->data[i] = pic->buf[i]->data;
682  }
683  for (; i < AV_NUM_DATA_POINTERS; i++) {
684  pic->data[i] = NULL;
685  pic->linesize[i] = 0;
686  }
687  if (desc->flags & AV_PIX_FMT_FLAG_PAL ||
689  avpriv_set_systematic_pal2((uint32_t *)pic->data[1], pic->format);
690 
691  if (s->debug & FF_DEBUG_BUFFERS)
692  av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p\n", pic);
693 
694  return 0;
695 fail:
696  av_frame_unref(pic);
697  return AVERROR(ENOMEM);
698 }
699 
700 void ff_color_frame(AVFrame *frame, const int c[4])
701 {
703  int p, y, x;
704 
706 
707  for (p = 0; p<desc->nb_components; p++) {
708  uint8_t *dst = frame->data[p];
709  int is_chroma = p == 1 || p == 2;
710  int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
711  int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
712  for (y = 0; y < height; y++) {
713  if (desc->comp[0].depth >= 9) {
714  for (x = 0; x<bytes; x++)
715  ((uint16_t*)dst)[x] = c[p];
716  }else
717  memset(dst, c[p], bytes);
718  dst += frame->linesize[p];
719  }
720  }
721 }
722 
724 {
725  int ret;
726 
727  if ((ret = update_frame_pool(avctx, frame)) < 0)
728  return ret;
729 
730  switch (avctx->codec_type) {
731  case AVMEDIA_TYPE_VIDEO:
732  return video_get_buffer(avctx, frame);
733  case AVMEDIA_TYPE_AUDIO:
734  return audio_get_buffer(avctx, frame);
735  default:
736  return -1;
737  }
738 }
739 
741 {
742  int size;
743  const uint8_t *side_metadata;
744 
745  AVDictionary **frame_md = avpriv_frame_get_metadatap(frame);
746 
747  side_metadata = av_packet_get_side_data(avpkt,
749  return av_packet_unpack_dictionary(side_metadata, size, frame_md);
750 }
751 
753 {
754  AVPacket *pkt = avctx->internal->pkt;
755  int i;
756  static const struct {
757  enum AVPacketSideDataType packet;
759  } sd[] = {
765  };
766 
767  if (pkt) {
768  frame->pkt_pts = pkt->pts;
769  av_frame_set_pkt_pos (frame, pkt->pos);
770  av_frame_set_pkt_duration(frame, pkt->duration);
771  av_frame_set_pkt_size (frame, pkt->size);
772 
773  for (i = 0; i < FF_ARRAY_ELEMS(sd); i++) {
774  int size;
775  uint8_t *packet_sd = av_packet_get_side_data(pkt, sd[i].packet, &size);
776  if (packet_sd) {
777  AVFrameSideData *frame_sd = av_frame_new_side_data(frame,
778  sd[i].frame,
779  size);
780  if (!frame_sd)
781  return AVERROR(ENOMEM);
782 
783  memcpy(frame_sd->data, packet_sd, size);
784  }
785  }
786  add_metadata_from_side_data(pkt, frame);
787  } else {
788  frame->pkt_pts = AV_NOPTS_VALUE;
789  av_frame_set_pkt_pos (frame, -1);
790  av_frame_set_pkt_duration(frame, 0);
791  av_frame_set_pkt_size (frame, -1);
792  }
793  frame->reordered_opaque = avctx->reordered_opaque;
794 
796  frame->color_primaries = avctx->color_primaries;
797  if (frame->color_trc == AVCOL_TRC_UNSPECIFIED)
798  frame->color_trc = avctx->color_trc;
800  av_frame_set_colorspace(frame, avctx->colorspace);
802  av_frame_set_color_range(frame, avctx->color_range);
804  frame->chroma_location = avctx->chroma_sample_location;
805 
806  switch (avctx->codec->type) {
807  case AVMEDIA_TYPE_VIDEO:
808  frame->format = avctx->pix_fmt;
809  if (!frame->sample_aspect_ratio.num)
811 
812  if (frame->width && frame->height &&
813  av_image_check_sar(frame->width, frame->height,
814  frame->sample_aspect_ratio) < 0) {
815  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
816  frame->sample_aspect_ratio.num,
817  frame->sample_aspect_ratio.den);
818  frame->sample_aspect_ratio = (AVRational){ 0, 1 };
819  }
820 
821  break;
822  case AVMEDIA_TYPE_AUDIO:
823  if (!frame->sample_rate)
824  frame->sample_rate = avctx->sample_rate;
825  if (frame->format < 0)
826  frame->format = avctx->sample_fmt;
827  if (!frame->channel_layout) {
828  if (avctx->channel_layout) {
830  avctx->channels) {
831  av_log(avctx, AV_LOG_ERROR, "Inconsistent channel "
832  "configuration.\n");
833  return AVERROR(EINVAL);
834  }
835 
836  frame->channel_layout = avctx->channel_layout;
837  } else {
838  if (avctx->channels > FF_SANE_NB_CHANNELS) {
839  av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n",
840  avctx->channels);
841  return AVERROR(ENOSYS);
842  }
843  }
844  }
845  av_frame_set_channels(frame, avctx->channels);
846  break;
847  }
848  return 0;
849 }
850 
852 {
853  return ff_init_buffer_info(avctx, frame);
854 }
855 
857 {
858  if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
859  int i;
860  int num_planes = av_pix_fmt_count_planes(frame->format);
862  int flags = desc ? desc->flags : 0;
863  if (num_planes == 1 && (flags & AV_PIX_FMT_FLAG_PAL))
864  num_planes = 2;
865  for (i = 0; i < num_planes; i++) {
866  av_assert0(frame->data[i]);
867  }
868  // For now do not enforce anything for palette of pseudopal formats
869  if (num_planes == 1 && (flags & AV_PIX_FMT_FLAG_PSEUDOPAL))
870  num_planes = 2;
871  // For formats without data like hwaccel allow unused pointers to be non-NULL.
872  for (i = num_planes; num_planes > 0 && i < FF_ARRAY_ELEMS(frame->data); i++) {
873  if (frame->data[i])
874  av_log(avctx, AV_LOG_ERROR, "Buffer returned by get_buffer2() did not zero unused plane pointers\n");
875  frame->data[i] = NULL;
876  }
877  }
878 }
879 
881 {
882  const AVHWAccel *hwaccel = avctx->hwaccel;
883  int override_dimensions = 1;
884  int ret;
885 
886  if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
887  if ((ret = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0 || avctx->pix_fmt<0) {
888  av_log(avctx, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n");
889  return AVERROR(EINVAL);
890  }
891 
892  if (frame->width <= 0 || frame->height <= 0) {
893  frame->width = FFMAX(avctx->width, AV_CEIL_RSHIFT(avctx->coded_width, avctx->lowres));
894  frame->height = FFMAX(avctx->height, AV_CEIL_RSHIFT(avctx->coded_height, avctx->lowres));
895  override_dimensions = 0;
896  }
897 
898  if (frame->data[0] || frame->data[1] || frame->data[2] || frame->data[3]) {
899  av_log(avctx, AV_LOG_ERROR, "pic->data[*]!=NULL in get_buffer_internal\n");
900  return AVERROR(EINVAL);
901  }
902  }
903  ret = ff_decode_frame_props(avctx, frame);
904  if (ret < 0)
905  return ret;
906 
907  if (hwaccel) {
908  if (hwaccel->alloc_frame) {
909  ret = hwaccel->alloc_frame(avctx, frame);
910  goto end;
911  }
912  } else
913  avctx->sw_pix_fmt = avctx->pix_fmt;
914 
915  ret = avctx->get_buffer2(avctx, frame, flags);
916  if (ret >= 0)
917  validate_avframe_allocation(avctx, frame);
918 
919 end:
920  if (avctx->codec_type == AVMEDIA_TYPE_VIDEO && !override_dimensions) {
921  frame->width = avctx->width;
922  frame->height = avctx->height;
923  }
924 
925  return ret;
926 }
927 
929 {
930  int ret = get_buffer_internal(avctx, frame, flags);
931  if (ret < 0) {
932  av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
933  frame->width = frame->height = 0;
934  }
935  return ret;
936 }
937 
939 {
940  AVFrame *tmp;
941  int ret;
942 
944 
945  if (frame->data[0] && (frame->width != avctx->width || frame->height != avctx->height || frame->format != avctx->pix_fmt)) {
946  av_log(avctx, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n",
947  frame->width, frame->height, av_get_pix_fmt_name(frame->format), avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt));
948  av_frame_unref(frame);
949  }
950 
951  ff_init_buffer_info(avctx, frame);
952 
953  if (!frame->data[0])
954  return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
955 
956  if (av_frame_is_writable(frame))
957  return ff_decode_frame_props(avctx, frame);
958 
959  tmp = av_frame_alloc();
960  if (!tmp)
961  return AVERROR(ENOMEM);
962 
963  av_frame_move_ref(tmp, frame);
964 
965  ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
966  if (ret < 0) {
967  av_frame_free(&tmp);
968  return ret;
969  }
970 
971  av_frame_copy(frame, tmp);
972  av_frame_free(&tmp);
973 
974  return 0;
975 }
976 
978 {
979  int ret = reget_buffer_internal(avctx, frame);
980  if (ret < 0)
981  av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
982  return ret;
983 }
984 
985 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
986 {
987  int i;
988 
989  for (i = 0; i < count; i++) {
990  int r = func(c, (char *)arg + i * size);
991  if (ret)
992  ret[i] = r;
993  }
994  return 0;
995 }
996 
997 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
998 {
999  int i;
1000 
1001  for (i = 0; i < count; i++) {
1002  int r = func(c, arg, i, 0);
1003  if (ret)
1004  ret[i] = r;
1005  }
1006  return 0;
1007 }
1008 
1010  unsigned int fourcc)
1011 {
1012  while (tags->pix_fmt >= 0) {
1013  if (tags->fourcc == fourcc)
1014  return tags->pix_fmt;
1015  tags++;
1016  }
1017  return AV_PIX_FMT_NONE;
1018 }
1019 
1021 {
1022  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
1023  return desc->flags & AV_PIX_FMT_FLAG_HWACCEL;
1024 }
1025 
1027 {
1028  while (*fmt != AV_PIX_FMT_NONE && is_hwaccel_pix_fmt(*fmt))
1029  ++fmt;
1030  return fmt[0];
1031 }
1032 
1034  enum AVPixelFormat pix_fmt)
1035 {
1036  AVHWAccel *hwaccel = NULL;
1037 
1038  while ((hwaccel = av_hwaccel_next(hwaccel)))
1039  if (hwaccel->id == codec_id
1040  && hwaccel->pix_fmt == pix_fmt)
1041  return hwaccel;
1042  return NULL;
1043 }
1044 
1045 static int setup_hwaccel(AVCodecContext *avctx,
1046  const enum AVPixelFormat fmt,
1047  const char *name)
1048 {
1049  AVHWAccel *hwa = find_hwaccel(avctx->codec_id, fmt);
1050  int ret = 0;
1051 
1052  if (avctx->active_thread_type & FF_THREAD_FRAME) {
1053  av_log(avctx, AV_LOG_WARNING,
1054  "Hardware accelerated decoding with frame threading is known to be unstable and its use is discouraged.\n");
1055  }
1056 
1057  if (!hwa) {
1058  av_log(avctx, AV_LOG_ERROR,
1059  "Could not find an AVHWAccel for the pixel format: %s",
1060  name);
1061  return AVERROR(ENOENT);
1062  }
1063 
1066  av_log(avctx, AV_LOG_WARNING, "Ignoring experimental hwaccel: %s\n",
1067  hwa->name);
1068  return AVERROR_PATCHWELCOME;
1069  }
1070 
1071  if (hwa->priv_data_size) {
1073  if (!avctx->internal->hwaccel_priv_data)
1074  return AVERROR(ENOMEM);
1075  }
1076 
1077  if (hwa->init) {
1078  ret = hwa->init(avctx);
1079  if (ret < 0) {
1081  return ret;
1082  }
1083  }
1084 
1085  avctx->hwaccel = hwa;
1086 
1087  return 0;
1088 }
1089 
1091 {
1092  const AVPixFmtDescriptor *desc;
1093  enum AVPixelFormat *choices;
1094  enum AVPixelFormat ret;
1095  unsigned n = 0;
1096 
1097  while (fmt[n] != AV_PIX_FMT_NONE)
1098  ++n;
1099 
1100  av_assert0(n >= 1);
1101  avctx->sw_pix_fmt = fmt[n - 1];
1103 
1104  choices = av_malloc_array(n + 1, sizeof(*choices));
1105  if (!choices)
1106  return AV_PIX_FMT_NONE;
1107 
1108  memcpy(choices, fmt, (n + 1) * sizeof(*choices));
1109 
1110  for (;;) {
1111  if (avctx->hwaccel && avctx->hwaccel->uninit)
1112  avctx->hwaccel->uninit(avctx);
1114  avctx->hwaccel = NULL;
1115 
1116  ret = avctx->get_format(avctx, choices);
1117 
1118  desc = av_pix_fmt_desc_get(ret);
1119  if (!desc) {
1120  ret = AV_PIX_FMT_NONE;
1121  break;
1122  }
1123 
1124  if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1125  break;
1126 #if FF_API_CAP_VDPAU
1128  break;
1129 #endif
1130 
1131  if (!setup_hwaccel(avctx, ret, desc->name))
1132  break;
1133 
1134  /* Remove failed hwaccel from choices */
1135  for (n = 0; choices[n] != ret; n++)
1136  av_assert0(choices[n] != AV_PIX_FMT_NONE);
1137 
1138  do
1139  choices[n] = choices[n + 1];
1140  while (choices[n++] != AV_PIX_FMT_NONE);
1141  }
1142 
1143  av_freep(&choices);
1144  return ret;
1145 }
1146 
1147 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
1148 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
1149 MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
1150 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
1151 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
1152 
1153 unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
1154 {
1155  return codec->properties;
1156 }
1157 
1159 {
1160  return codec->max_lowres;
1161 }
1162 
1165 }
1166 
1168 {
1169  memset(sub, 0, sizeof(*sub));
1170  sub->pts = AV_NOPTS_VALUE;
1171 }
1172 
1174 {
1175  int64_t bit_rate;
1176  int bits_per_sample;
1177 
1178  switch (ctx->codec_type) {
1179  case AVMEDIA_TYPE_VIDEO:
1180  case AVMEDIA_TYPE_DATA:
1181  case AVMEDIA_TYPE_SUBTITLE:
1183  bit_rate = ctx->bit_rate;
1184  break;
1185  case AVMEDIA_TYPE_AUDIO:
1186  bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
1187  bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
1188  break;
1189  default:
1190  bit_rate = 0;
1191  break;
1192  }
1193  return bit_rate;
1194 }
1195 
1196 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1197 {
1198  int ret = 0;
1199 
1200  ff_unlock_avcodec(codec);
1201 
1202  ret = avcodec_open2(avctx, codec, options);
1203 
1204  ff_lock_avcodec(avctx, codec);
1205  return ret;
1206 }
1207 
1208 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
1209 {
1210  int ret = 0;
1211  AVDictionary *tmp = NULL;
1212  const AVPixFmtDescriptor *pixdesc;
1213 
1214  if (avcodec_is_open(avctx))
1215  return 0;
1216 
1217  if ((!codec && !avctx->codec)) {
1218  av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
1219  return AVERROR(EINVAL);
1220  }
1221  if ((codec && avctx->codec && codec != avctx->codec)) {
1222  av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
1223  "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
1224  return AVERROR(EINVAL);
1225  }
1226  if (!codec)
1227  codec = avctx->codec;
1228 
1229  if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
1230  return AVERROR(EINVAL);
1231 
1232  if (options)
1233  av_dict_copy(&tmp, *options, 0);
1234 
1235  ret = ff_lock_avcodec(avctx, codec);
1236  if (ret < 0)
1237  return ret;
1238 
1239  avctx->internal = av_mallocz(sizeof(AVCodecInternal));
1240  if (!avctx->internal) {
1241  ret = AVERROR(ENOMEM);
1242  goto end;
1243  }
1244 
1245  avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
1246  if (!avctx->internal->pool) {
1247  ret = AVERROR(ENOMEM);
1248  goto free_and_end;
1249  }
1250 
1251  avctx->internal->to_free = av_frame_alloc();
1252  if (!avctx->internal->to_free) {
1253  ret = AVERROR(ENOMEM);
1254  goto free_and_end;
1255  }
1256 
1257  avctx->internal->buffer_frame = av_frame_alloc();
1258  if (!avctx->internal->buffer_frame) {
1259  ret = AVERROR(ENOMEM);
1260  goto free_and_end;
1261  }
1262 
1263  avctx->internal->buffer_pkt = av_packet_alloc();
1264  if (!avctx->internal->buffer_pkt) {
1265  ret = AVERROR(ENOMEM);
1266  goto free_and_end;
1267  }
1268 
1269  if (codec->priv_data_size > 0) {
1270  if (!avctx->priv_data) {
1271  avctx->priv_data = av_mallocz(codec->priv_data_size);
1272  if (!avctx->priv_data) {
1273  ret = AVERROR(ENOMEM);
1274  goto end;
1275  }
1276  if (codec->priv_class) {
1277  *(const AVClass **)avctx->priv_data = codec->priv_class;
1279  }
1280  }
1281  if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
1282  goto free_and_end;
1283  } else {
1284  avctx->priv_data = NULL;
1285  }
1286  if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
1287  goto free_and_end;
1288 
1289  if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
1290  av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
1291  ret = AVERROR(EINVAL);
1292  goto free_and_end;
1293  }
1294 
1295  // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
1296  if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
1297  (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
1298  if (avctx->coded_width && avctx->coded_height)
1299  ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
1300  else if (avctx->width && avctx->height)
1301  ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
1302  if (ret < 0)
1303  goto free_and_end;
1304  }
1305 
1306  if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
1307  && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0
1308  || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {
1309  av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
1310  ff_set_dimensions(avctx, 0, 0);
1311  }
1312 
1313  if (avctx->width > 0 && avctx->height > 0) {
1314  if (av_image_check_sar(avctx->width, avctx->height,
1315  avctx->sample_aspect_ratio) < 0) {
1316  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
1317  avctx->sample_aspect_ratio.num,
1318  avctx->sample_aspect_ratio.den);
1319  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
1320  }
1321  }
1322 
1323  /* if the decoder init function was already called previously,
1324  * free the already allocated subtitle_header before overwriting it */
1325  if (av_codec_is_decoder(codec))
1326  av_freep(&avctx->subtitle_header);
1327 
1328  if (avctx->channels > FF_SANE_NB_CHANNELS) {
1329  ret = AVERROR(EINVAL);
1330  goto free_and_end;
1331  }
1332 
1333  avctx->codec = codec;
1334  if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
1335  avctx->codec_id == AV_CODEC_ID_NONE) {
1336  avctx->codec_type = codec->type;
1337  avctx->codec_id = codec->id;
1338  }
1339  if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
1340  && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
1341  av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
1342  ret = AVERROR(EINVAL);
1343  goto free_and_end;
1344  }
1345  avctx->frame_number = 0;
1347 
1348  if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
1350  const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
1351  AVCodec *codec2;
1352  av_log(avctx, AV_LOG_ERROR,
1353  "The %s '%s' is experimental but experimental codecs are not enabled, "
1354  "add '-strict %d' if you want to use it.\n",
1355  codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
1356  codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
1357  if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
1358  av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
1359  codec_string, codec2->name);
1360  ret = AVERROR_EXPERIMENTAL;
1361  goto free_and_end;
1362  }
1363 
1364  if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
1365  (!avctx->time_base.num || !avctx->time_base.den)) {
1366  avctx->time_base.num = 1;
1367  avctx->time_base.den = avctx->sample_rate;
1368  }
1369 
1370  if (!HAVE_THREADS)
1371  av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
1372 
1373  if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
1374  ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
1375  ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
1376  ff_lock_avcodec(avctx, codec);
1377  if (ret < 0)
1378  goto free_and_end;
1379  }
1380 
1381  if (HAVE_THREADS
1383  ret = ff_thread_init(avctx);
1384  if (ret < 0) {
1385  goto free_and_end;
1386  }
1387  }
1388  if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
1389  avctx->thread_count = 1;
1390 
1391  if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
1392  av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
1393  avctx->codec->max_lowres);
1394  avctx->lowres = avctx->codec->max_lowres;
1395  }
1396 
1397 #if FF_API_VISMV
1398  if (avctx->debug_mv)
1399  av_log(avctx, AV_LOG_WARNING, "The 'vismv' option is deprecated, "
1400  "see the codecview filter instead.\n");
1401 #endif
1402 
1403  if (av_codec_is_encoder(avctx->codec)) {
1404  int i;
1405 #if FF_API_CODED_FRAME
1407  avctx->coded_frame = av_frame_alloc();
1408  if (!avctx->coded_frame) {
1409  ret = AVERROR(ENOMEM);
1410  goto free_and_end;
1411  }
1413 #endif
1414 
1415  if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
1416  av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
1417  ret = AVERROR(EINVAL);
1418  goto free_and_end;
1419  }
1420 
1421  if (avctx->codec->sample_fmts) {
1422  for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
1423  if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
1424  break;
1425  if (avctx->channels == 1 &&
1428  avctx->sample_fmt = avctx->codec->sample_fmts[i];
1429  break;
1430  }
1431  }
1432  if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
1433  char buf[128];
1434  snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
1435  av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
1436  (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
1437  ret = AVERROR(EINVAL);
1438  goto free_and_end;
1439  }
1440  }
1441  if (avctx->codec->pix_fmts) {
1442  for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
1443  if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
1444  break;
1445  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
1446  && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
1448  char buf[128];
1449  snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
1450  av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
1451  (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
1452  ret = AVERROR(EINVAL);
1453  goto free_and_end;
1454  }
1455  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
1456  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
1457  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
1458  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
1459  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
1460  avctx->color_range = AVCOL_RANGE_JPEG;
1461  }
1462  if (avctx->codec->supported_samplerates) {
1463  for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
1464  if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
1465  break;
1466  if (avctx->codec->supported_samplerates[i] == 0) {
1467  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1468  avctx->sample_rate);
1469  ret = AVERROR(EINVAL);
1470  goto free_and_end;
1471  }
1472  }
1473  if (avctx->sample_rate < 0) {
1474  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1475  avctx->sample_rate);
1476  ret = AVERROR(EINVAL);
1477  goto free_and_end;
1478  }
1479  if (avctx->codec->channel_layouts) {
1480  if (!avctx->channel_layout) {
1481  av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
1482  } else {
1483  for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
1484  if (avctx->channel_layout == avctx->codec->channel_layouts[i])
1485  break;
1486  if (avctx->codec->channel_layouts[i] == 0) {
1487  char buf[512];
1488  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1489  av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
1490  ret = AVERROR(EINVAL);
1491  goto free_and_end;
1492  }
1493  }
1494  }
1495  if (avctx->channel_layout && avctx->channels) {
1496  int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1497  if (channels != avctx->channels) {
1498  char buf[512];
1499  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1500  av_log(avctx, AV_LOG_ERROR,
1501  "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
1502  buf, channels, avctx->channels);
1503  ret = AVERROR(EINVAL);
1504  goto free_and_end;
1505  }
1506  } else if (avctx->channel_layout) {
1508  }
1509  if (avctx->channels < 0) {
1510  av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
1511  avctx->channels);
1512  ret = AVERROR(EINVAL);
1513  goto free_and_end;
1514  }
1515  if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
1516  pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
1517  if ( avctx->bits_per_raw_sample < 0
1518  || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
1519  av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
1520  avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
1521  avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
1522  }
1523  if (avctx->width <= 0 || avctx->height <= 0) {
1524  av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
1525  ret = AVERROR(EINVAL);
1526  goto free_and_end;
1527  }
1528  }
1529  if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
1530  && avctx->bit_rate>0 && avctx->bit_rate<1000) {
1531  av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", (int64_t)avctx->bit_rate, (int64_t)avctx->bit_rate);
1532  }
1533 
1534  if (!avctx->rc_initial_buffer_occupancy)
1535  avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3 / 4;
1536 
1537  if (avctx->ticks_per_frame && avctx->time_base.num &&
1538  avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
1539  av_log(avctx, AV_LOG_ERROR,
1540  "ticks_per_frame %d too large for the timebase %d/%d.",
1541  avctx->ticks_per_frame,
1542  avctx->time_base.num,
1543  avctx->time_base.den);
1544  goto free_and_end;
1545  }
1546 
1547  if (avctx->hw_frames_ctx) {
1548  AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
1549  if (frames_ctx->format != avctx->pix_fmt) {
1550  av_log(avctx, AV_LOG_ERROR,
1551  "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
1552  ret = AVERROR(EINVAL);
1553  goto free_and_end;
1554  }
1555  }
1556  }
1557 
1559  avctx->pts_correction_num_faulty_dts = 0;
1560  avctx->pts_correction_last_pts =
1561  avctx->pts_correction_last_dts = INT64_MIN;
1562 
1563  if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
1565  av_log(avctx, AV_LOG_WARNING,
1566  "gray decoding requested but not enabled at configuration time\n");
1567 
1568  if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
1569  || avctx->internal->frame_thread_encoder)) {
1570  ret = avctx->codec->init(avctx);
1571  if (ret < 0) {
1572  goto free_and_end;
1573  }
1574  }
1575 
1576  ret=0;
1577 
1578 #if FF_API_AUDIOENC_DELAY
1579  if (av_codec_is_encoder(avctx->codec))
1580  avctx->delay = avctx->initial_padding;
1581 #endif
1582 
1583  if (av_codec_is_decoder(avctx->codec)) {
1584  if (!avctx->bit_rate)
1585  avctx->bit_rate = get_bit_rate(avctx);
1586  /* validate channel layout from the decoder */
1587  if (avctx->channel_layout) {
1588  int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1589  if (!avctx->channels)
1590  avctx->channels = channels;
1591  else if (channels != avctx->channels) {
1592  char buf[512];
1593  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1594  av_log(avctx, AV_LOG_WARNING,
1595  "Channel layout '%s' with %d channels does not match specified number of channels %d: "
1596  "ignoring specified channel layout\n",
1597  buf, channels, avctx->channels);
1598  avctx->channel_layout = 0;
1599  }
1600  }
1601  if (avctx->channels && avctx->channels < 0 ||
1602  avctx->channels > FF_SANE_NB_CHANNELS) {
1603  ret = AVERROR(EINVAL);
1604  goto free_and_end;
1605  }
1606  if (avctx->sub_charenc) {
1607  if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
1608  av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
1609  "supported with subtitles codecs\n");
1610  ret = AVERROR(EINVAL);
1611  goto free_and_end;
1612  } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
1613  av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
1614  "subtitles character encoding will be ignored\n",
1615  avctx->codec_descriptor->name);
1617  } else {
1618  /* input character encoding is set for a text based subtitle
1619  * codec at this point */
1622 
1624 #if CONFIG_ICONV
1625  iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1626  if (cd == (iconv_t)-1) {
1627  ret = AVERROR(errno);
1628  av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1629  "with input character encoding \"%s\"\n", avctx->sub_charenc);
1630  goto free_and_end;
1631  }
1632  iconv_close(cd);
1633 #else
1634  av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1635  "conversion needs a libavcodec built with iconv support "
1636  "for this codec\n");
1637  ret = AVERROR(ENOSYS);
1638  goto free_and_end;
1639 #endif
1640  }
1641  }
1642  }
1643 
1644 #if FF_API_AVCTX_TIMEBASE
1645  if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1646  avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1647 #endif
1648  }
1649  if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1650  av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1651  }
1652 
1653 end:
1654  ff_unlock_avcodec(codec);
1655  if (options) {
1657  *options = tmp;
1658  }
1659 
1660  return ret;
1661 free_and_end:
1662  if (avctx->codec &&
1663  (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP))
1664  avctx->codec->close(avctx);
1665 
1666  if (codec->priv_class && codec->priv_data_size)
1667  av_opt_free(avctx->priv_data);
1668  av_opt_free(avctx);
1669 
1670 #if FF_API_CODED_FRAME
1672  av_frame_free(&avctx->coded_frame);
1674 #endif
1675 
1676  av_dict_free(&tmp);
1677  av_freep(&avctx->priv_data);
1678  if (avctx->internal) {
1679  av_packet_free(&avctx->internal->buffer_pkt);
1680  av_frame_free(&avctx->internal->buffer_frame);
1681  av_frame_free(&avctx->internal->to_free);
1682  av_freep(&avctx->internal->pool);
1683  }
1684  av_freep(&avctx->internal);
1685  avctx->codec = NULL;
1686  goto end;
1687 }
1688 
1689 int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
1690 {
1691  if (avpkt->size < 0) {
1692  av_log(avctx, AV_LOG_ERROR, "Invalid negative user packet size %d\n", avpkt->size);
1693  return AVERROR(EINVAL);
1694  }
1696  av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n",
1697  size, INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE);
1698  return AVERROR(EINVAL);
1699  }
1700 
1701  if (avctx && 2*min_size < size) { // FIXME The factor needs to be finetuned
1702  av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer);
1703  if (!avpkt->data || avpkt->size < size) {
1705  avpkt->data = avctx->internal->byte_buffer;
1706  avpkt->size = avctx->internal->byte_buffer_size;
1707  }
1708  }
1709 
1710  if (avpkt->data) {
1711  AVBufferRef *buf = avpkt->buf;
1712 
1713  if (avpkt->size < size) {
1714  av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %"PRId64")\n", avpkt->size, size);
1715  return AVERROR(EINVAL);
1716  }
1717 
1718  av_init_packet(avpkt);
1719  avpkt->buf = buf;
1720  avpkt->size = size;
1721  return 0;
1722  } else {
1723  int ret = av_new_packet(avpkt, size);
1724  if (ret < 0)
1725  av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size);
1726  return ret;
1727  }
1728 }
1729 
1731 {
1732  return ff_alloc_packet2(NULL, avpkt, size, 0);
1733 }
1734 
1735 /**
1736  * Pad last frame with silence.
1737  */
1738 static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
1739 {
1740  AVFrame *frame = NULL;
1741  int ret;
1742 
1743  if (!(frame = av_frame_alloc()))
1744  return AVERROR(ENOMEM);
1745 
1746  frame->format = src->format;
1747  frame->channel_layout = src->channel_layout;
1749  frame->nb_samples = s->frame_size;
1750  ret = av_frame_get_buffer(frame, 32);
1751  if (ret < 0)
1752  goto fail;
1753 
1754  ret = av_frame_copy_props(frame, src);
1755  if (ret < 0)
1756  goto fail;
1757 
1758  if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
1759  src->nb_samples, s->channels, s->sample_fmt)) < 0)
1760  goto fail;
1761  if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
1762  frame->nb_samples - src->nb_samples,
1763  s->channels, s->sample_fmt)) < 0)
1764  goto fail;
1765 
1766  *dst = frame;
1767 
1768  return 0;
1769 
1770 fail:
1771  av_frame_free(&frame);
1772  return ret;
1773 }
1774 
1775 int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
1776  AVPacket *avpkt,
1777  const AVFrame *frame,
1778  int *got_packet_ptr)
1779 {
1780  AVFrame *extended_frame = NULL;
1781  AVFrame *padded_frame = NULL;
1782  int ret;
1783  AVPacket user_pkt = *avpkt;
1784  int needs_realloc = !user_pkt.data;
1785 
1786  *got_packet_ptr = 0;
1787 
1788  if (!avctx->codec->encode2) {
1789  av_log(avctx, AV_LOG_ERROR, "This encoder requires using the avcodec_send_frame() API.\n");
1790  return AVERROR(ENOSYS);
1791  }
1792 
1793  if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) {
1794  av_packet_unref(avpkt);
1795  av_init_packet(avpkt);
1796  return 0;
1797  }
1798 
1799  /* ensure that extended_data is properly set */
1800  if (frame && !frame->extended_data) {
1801  if (av_sample_fmt_is_planar(avctx->sample_fmt) &&
1802  avctx->channels > AV_NUM_DATA_POINTERS) {
1803  av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, "
1804  "with more than %d channels, but extended_data is not set.\n",
1806  return AVERROR(EINVAL);
1807  }
1808  av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n");
1809 
1810  extended_frame = av_frame_alloc();
1811  if (!extended_frame)
1812  return AVERROR(ENOMEM);
1813 
1814  memcpy(extended_frame, frame, sizeof(AVFrame));
1815  extended_frame->extended_data = extended_frame->data;
1816  frame = extended_frame;
1817  }
1818 
1819  /* extract audio service type metadata */
1820  if (frame) {
1822  if (sd && sd->size >= sizeof(enum AVAudioServiceType))
1823  avctx->audio_service_type = *(enum AVAudioServiceType*)sd->data;
1824  }
1825 
1826  /* check for valid frame size */
1827  if (frame) {
1829  if (frame->nb_samples > avctx->frame_size) {
1830  av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n");
1831  ret = AVERROR(EINVAL);
1832  goto end;
1833  }
1834  } else if (!(avctx->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)) {
1835  if (frame->nb_samples < avctx->frame_size &&
1836  !avctx->internal->last_audio_frame) {
1837  ret = pad_last_frame(avctx, &padded_frame, frame);
1838  if (ret < 0)
1839  goto end;
1840 
1841  frame = padded_frame;
1842  avctx->internal->last_audio_frame = 1;
1843  }
1844 
1845  if (frame->nb_samples != avctx->frame_size) {
1846  av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size);
1847  ret = AVERROR(EINVAL);
1848  goto end;
1849  }
1850  }
1851  }
1852 
1853  av_assert0(avctx->codec->encode2);
1854 
1855  ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1856  if (!ret) {
1857  if (*got_packet_ptr) {
1858  if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) {
1859  if (avpkt->pts == AV_NOPTS_VALUE)
1860  avpkt->pts = frame->pts;
1861  if (!avpkt->duration)
1862  avpkt->duration = ff_samples_to_time_base(avctx,
1863  frame->nb_samples);
1864  }
1865  avpkt->dts = avpkt->pts;
1866  } else {
1867  avpkt->size = 0;
1868  }
1869  }
1870  if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1871  needs_realloc = 0;
1872  if (user_pkt.data) {
1873  if (user_pkt.size >= avpkt->size) {
1874  memcpy(user_pkt.data, avpkt->data, avpkt->size);
1875  } else {
1876  av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1877  avpkt->size = user_pkt.size;
1878  ret = -1;
1879  }
1880  avpkt->buf = user_pkt.buf;
1881  avpkt->data = user_pkt.data;
1882  } else {
1883  if (av_dup_packet(avpkt) < 0) {
1884  ret = AVERROR(ENOMEM);
1885  }
1886  }
1887  }
1888 
1889  if (!ret) {
1890  if (needs_realloc && avpkt->data) {
1891  ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
1892  if (ret >= 0)
1893  avpkt->data = avpkt->buf->data;
1894  }
1895 
1896  avctx->frame_number++;
1897  }
1898 
1899  if (ret < 0 || !*got_packet_ptr) {
1900  av_packet_unref(avpkt);
1901  av_init_packet(avpkt);
1902  goto end;
1903  }
1904 
1905  /* NOTE: if we add any audio encoders which output non-keyframe packets,
1906  * this needs to be moved to the encoders, but for now we can do it
1907  * here to simplify things */
1908  avpkt->flags |= AV_PKT_FLAG_KEY;
1909 
1910 end:
1911  av_frame_free(&padded_frame);
1912  av_free(extended_frame);
1913 
1914 #if FF_API_AUDIOENC_DELAY
1915  avctx->delay = avctx->initial_padding;
1916 #endif
1917 
1918  return ret;
1919 }
1920 
1921 int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
1922  AVPacket *avpkt,
1923  const AVFrame *frame,
1924  int *got_packet_ptr)
1925 {
1926  int ret;
1927  AVPacket user_pkt = *avpkt;
1928  int needs_realloc = !user_pkt.data;
1929 
1930  *got_packet_ptr = 0;
1931 
1932  if (!avctx->codec->encode2) {
1933  av_log(avctx, AV_LOG_ERROR, "This encoder requires using the avcodec_send_frame() API.\n");
1934  return AVERROR(ENOSYS);
1935  }
1936 
1937  if(CONFIG_FRAME_THREAD_ENCODER &&
1939  return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr);
1940 
1941  if ((avctx->flags&AV_CODEC_FLAG_PASS1) && avctx->stats_out)
1942  avctx->stats_out[0] = '\0';
1943 
1944  if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) {
1945  av_packet_unref(avpkt);
1946  av_init_packet(avpkt);
1947  avpkt->size = 0;
1948  return 0;
1949  }
1950 
1951  if (av_image_check_size(avctx->width, avctx->height, 0, avctx))
1952  return AVERROR(EINVAL);
1953 
1954  if (frame && frame->format == AV_PIX_FMT_NONE)
1955  av_log(avctx, AV_LOG_WARNING, "AVFrame.format is not set\n");
1956  if (frame && (frame->width == 0 || frame->height == 0))
1957  av_log(avctx, AV_LOG_WARNING, "AVFrame.width or height is not set\n");
1958 
1959  av_assert0(avctx->codec->encode2);
1960 
1961  ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1962  av_assert0(ret <= 0);
1963 
1964  if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1965  needs_realloc = 0;
1966  if (user_pkt.data) {
1967  if (user_pkt.size >= avpkt->size) {
1968  memcpy(user_pkt.data, avpkt->data, avpkt->size);
1969  } else {
1970  av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1971  avpkt->size = user_pkt.size;
1972  ret = -1;
1973  }
1974  avpkt->buf = user_pkt.buf;
1975  avpkt->data = user_pkt.data;
1976  } else {
1977  if (av_dup_packet(avpkt) < 0) {
1978  ret = AVERROR(ENOMEM);
1979  }
1980  }
1981  }
1982 
1983  if (!ret) {
1984  if (!*got_packet_ptr)
1985  avpkt->size = 0;
1986  else if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
1987  avpkt->pts = avpkt->dts = frame->pts;
1988 
1989  if (needs_realloc && avpkt->data) {
1990  ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
1991  if (ret >= 0)
1992  avpkt->data = avpkt->buf->data;
1993  }
1994 
1995  avctx->frame_number++;
1996  }
1997 
1998  if (ret < 0 || !*got_packet_ptr)
1999  av_packet_unref(avpkt);
2000 
2001  emms_c();
2002  return ret;
2003 }
2004 
2006  const AVSubtitle *sub)
2007 {
2008  int ret;
2009  if (sub->start_display_time) {
2010  av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
2011  return -1;
2012  }
2013 
2014  ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub);
2015  avctx->frame_number++;
2016  return ret;
2017 }
2018 
2019 /**
2020  * Attempt to guess proper monotonic timestamps for decoded video frames
2021  * which might have incorrect times. Input timestamps may wrap around, in
2022  * which case the output will as well.
2023  *
2024  * @param pts the pts field of the decoded AVPacket, as passed through
2025  * AVFrame.pkt_pts
2026  * @param dts the dts field of the decoded AVPacket
2027  * @return one of the input values, may be AV_NOPTS_VALUE
2028  */
2030  int64_t reordered_pts, int64_t dts)
2031 {
2032  int64_t pts = AV_NOPTS_VALUE;
2033 
2034  if (dts != AV_NOPTS_VALUE) {
2036  ctx->pts_correction_last_dts = dts;
2037  } else if (reordered_pts != AV_NOPTS_VALUE)
2038  ctx->pts_correction_last_dts = reordered_pts;
2039 
2040  if (reordered_pts != AV_NOPTS_VALUE) {
2041  ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
2042  ctx->pts_correction_last_pts = reordered_pts;
2043  } else if(dts != AV_NOPTS_VALUE)
2044  ctx->pts_correction_last_pts = dts;
2045 
2047  && reordered_pts != AV_NOPTS_VALUE)
2048  pts = reordered_pts;
2049  else
2050  pts = dts;
2051 
2052  return pts;
2053 }
2054 
2055 static int apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
2056 {
2057  int size = 0, ret;
2058  const uint8_t *data;
2059  uint32_t flags;
2060  int64_t val;
2061 
2062  data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
2063  if (!data)
2064  return 0;
2065 
2066  if (!(avctx->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE)) {
2067  av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter "
2068  "changes, but PARAM_CHANGE side data was sent to it.\n");
2069  ret = AVERROR(EINVAL);
2070  goto fail2;
2071  }
2072 
2073  if (size < 4)
2074  goto fail;
2075 
2076  flags = bytestream_get_le32(&data);
2077  size -= 4;
2078 
2080  if (size < 4)
2081  goto fail;
2082  val = bytestream_get_le32(&data);
2083  if (val <= 0 || val > INT_MAX) {
2084  av_log(avctx, AV_LOG_ERROR, "Invalid channel count");
2085  ret = AVERROR_INVALIDDATA;
2086  goto fail2;
2087  }
2088  avctx->channels = val;
2089  size -= 4;
2090  }
2092  if (size < 8)
2093  goto fail;
2094  avctx->channel_layout = bytestream_get_le64(&data);
2095  size -= 8;
2096  }
2098  if (size < 4)
2099  goto fail;
2100  val = bytestream_get_le32(&data);
2101  if (val <= 0 || val > INT_MAX) {
2102  av_log(avctx, AV_LOG_ERROR, "Invalid sample rate");
2103  ret = AVERROR_INVALIDDATA;
2104  goto fail2;
2105  }
2106  avctx->sample_rate = val;
2107  size -= 4;
2108  }
2110  if (size < 8)
2111  goto fail;
2112  avctx->width = bytestream_get_le32(&data);
2113  avctx->height = bytestream_get_le32(&data);
2114  size -= 8;
2115  ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
2116  if (ret < 0)
2117  goto fail2;
2118  }
2119 
2120  return 0;
2121 fail:
2122  av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n");
2123  ret = AVERROR_INVALIDDATA;
2124 fail2:
2125  if (ret < 0) {
2126  av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2127  if (avctx->err_recognition & AV_EF_EXPLODE)
2128  return ret;
2129  }
2130  return 0;
2131 }
2132 
2134 {
2135  int ret;
2136 
2137  /* move the original frame to our backup */
2138  av_frame_unref(avci->to_free);
2139  av_frame_move_ref(avci->to_free, frame);
2140 
2141  /* now copy everything except the AVBufferRefs back
2142  * note that we make a COPY of the side data, so calling av_frame_free() on
2143  * the caller's frame will work properly */
2144  ret = av_frame_copy_props(frame, avci->to_free);
2145  if (ret < 0)
2146  return ret;
2147 
2148  memcpy(frame->data, avci->to_free->data, sizeof(frame->data));
2149  memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize));
2150  if (avci->to_free->extended_data != avci->to_free->data) {
2151  int planes = av_frame_get_channels(avci->to_free);
2152  int size = planes * sizeof(*frame->extended_data);
2153 
2154  if (!size) {
2155  av_frame_unref(frame);
2156  return AVERROR_BUG;
2157  }
2158 
2159  frame->extended_data = av_malloc(size);
2160  if (!frame->extended_data) {
2161  av_frame_unref(frame);
2162  return AVERROR(ENOMEM);
2163  }
2164  memcpy(frame->extended_data, avci->to_free->extended_data,
2165  size);
2166  } else
2167  frame->extended_data = frame->data;
2168 
2169  frame->format = avci->to_free->format;
2170  frame->width = avci->to_free->width;
2171  frame->height = avci->to_free->height;
2172  frame->channel_layout = avci->to_free->channel_layout;
2173  frame->nb_samples = avci->to_free->nb_samples;
2175 
2176  return 0;
2177 }
2178 
2179 int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
2180  int *got_picture_ptr,
2181  const AVPacket *avpkt)
2182 {
2183  AVCodecInternal *avci = avctx->internal;
2184  int ret;
2185  // copy to ensure we do not change avpkt
2186  AVPacket tmp = *avpkt;
2187 
2188  if (!avctx->codec)
2189  return AVERROR(EINVAL);
2190  if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) {
2191  av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n");
2192  return AVERROR(EINVAL);
2193  }
2194 
2195  if (!avctx->codec->decode) {
2196  av_log(avctx, AV_LOG_ERROR, "This decoder requires using the avcodec_send_packet() API.\n");
2197  return AVERROR(ENOSYS);
2198  }
2199 
2200  *got_picture_ptr = 0;
2201  if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
2202  return AVERROR(EINVAL);
2203 
2204  avctx->internal->pkt = avpkt;
2205  ret = apply_param_change(avctx, avpkt);
2206  if (ret < 0)
2207  return ret;
2208 
2209  av_frame_unref(picture);
2210 
2211  if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size ||
2212  (avctx->active_thread_type & FF_THREAD_FRAME)) {
2213  int did_split = av_packet_split_side_data(&tmp);
2214  ret = apply_param_change(avctx, &tmp);
2215  if (ret < 0)
2216  goto fail;
2217 
2218  avctx->internal->pkt = &tmp;
2219  if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2220  ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
2221  &tmp);
2222  else {
2223  ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
2224  &tmp);
2226  picture->pkt_dts = avpkt->dts;
2227 
2228  if(!avctx->has_b_frames){
2229  av_frame_set_pkt_pos(picture, avpkt->pos);
2230  }
2231  //FIXME these should be under if(!avctx->has_b_frames)
2232  /* get_buffer is supposed to set frame parameters */
2233  if (!(avctx->codec->capabilities & AV_CODEC_CAP_DR1)) {
2234  if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
2235  if (!picture->width) picture->width = avctx->width;
2236  if (!picture->height) picture->height = avctx->height;
2237  if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt;
2238  }
2239  }
2240 
2241 fail:
2242  emms_c(); //needed to avoid an emms_c() call before every return;
2243 
2244  avctx->internal->pkt = NULL;
2245  if (did_split) {
2247  if(ret == tmp.size)
2248  ret = avpkt->size;
2249  }
2250 
2251  if (*got_picture_ptr) {
2252  if (!avctx->refcounted_frames) {
2253  int err = unrefcount_frame(avci, picture);
2254  if (err < 0)
2255  return err;
2256  }
2257 
2258  avctx->frame_number++;
2260  guess_correct_pts(avctx,
2261  picture->pkt_pts,
2262  picture->pkt_dts));
2263  } else
2264  av_frame_unref(picture);
2265  } else
2266  ret = 0;
2267 
2268  /* many decoders assign whole AVFrames, thus overwriting extended_data;
2269  * make sure it's set correctly */
2270  av_assert0(!picture->extended_data || picture->extended_data == picture->data);
2271 
2272 #if FF_API_AVCTX_TIMEBASE
2273  if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
2274  avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
2275 #endif
2276 
2277  return ret;
2278 }
2279 
2280 int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
2281  AVFrame *frame,
2282  int *got_frame_ptr,
2283  const AVPacket *avpkt)
2284 {
2285  AVCodecInternal *avci = avctx->internal;
2286  int ret = 0;
2287 
2288  *got_frame_ptr = 0;
2289 
2290  if (!avctx->codec)
2291  return AVERROR(EINVAL);
2292 
2293  if (!avctx->codec->decode) {
2294  av_log(avctx, AV_LOG_ERROR, "This decoder requires using the avcodec_send_packet() API.\n");
2295  return AVERROR(ENOSYS);
2296  }
2297 
2298  if (!avpkt->data && avpkt->size) {
2299  av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2300  return AVERROR(EINVAL);
2301  }
2302  if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) {
2303  av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n");
2304  return AVERROR(EINVAL);
2305  }
2306 
2307  av_frame_unref(frame);
2308 
2309  if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
2310  uint8_t *side;
2311  int side_size;
2312  uint32_t discard_padding = 0;
2313  uint8_t skip_reason = 0;
2314  uint8_t discard_reason = 0;
2315  // copy to ensure we do not change avpkt
2316  AVPacket tmp = *avpkt;
2317  int did_split = av_packet_split_side_data(&tmp);
2318  ret = apply_param_change(avctx, &tmp);
2319  if (ret < 0)
2320  goto fail;
2321 
2322  avctx->internal->pkt = &tmp;
2323  if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2324  ret = ff_thread_decode_frame(avctx, frame, got_frame_ptr, &tmp);
2325  else {
2326  ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp);
2327  av_assert0(ret <= tmp.size);
2328  frame->pkt_dts = avpkt->dts;
2329  }
2330  if (ret >= 0 && *got_frame_ptr) {
2331  avctx->frame_number++;
2333  guess_correct_pts(avctx,
2334  frame->pkt_pts,
2335  frame->pkt_dts));
2336  if (frame->format == AV_SAMPLE_FMT_NONE)
2337  frame->format = avctx->sample_fmt;
2338  if (!frame->channel_layout)
2339  frame->channel_layout = avctx->channel_layout;
2340  if (!av_frame_get_channels(frame))
2341  av_frame_set_channels(frame, avctx->channels);
2342  if (!frame->sample_rate)
2343  frame->sample_rate = avctx->sample_rate;
2344  }
2345 
2346  side= av_packet_get_side_data(avctx->internal->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size);
2347  if(side && side_size>=10) {
2348  avctx->internal->skip_samples = AV_RL32(side);
2349  discard_padding = AV_RL32(side + 4);
2350  av_log(avctx, AV_LOG_DEBUG, "skip %d / discard %d samples due to side data\n",
2351  avctx->internal->skip_samples, (int)discard_padding);
2352  skip_reason = AV_RL8(side + 8);
2353  discard_reason = AV_RL8(side + 9);
2354  }
2355  if (avctx->internal->skip_samples > 0 && *got_frame_ptr &&
2356  !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
2357  if(frame->nb_samples <= avctx->internal->skip_samples){
2358  *got_frame_ptr = 0;
2359  avctx->internal->skip_samples -= frame->nb_samples;
2360  av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n",
2361  avctx->internal->skip_samples);
2362  } else {
2364  frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format);
2365  if(avctx->pkt_timebase.num && avctx->sample_rate) {
2366  int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples,
2367  (AVRational){1, avctx->sample_rate},
2368  avctx->pkt_timebase);
2369  if(frame->pkt_pts!=AV_NOPTS_VALUE)
2370  frame->pkt_pts += diff_ts;
2371  if(frame->pkt_dts!=AV_NOPTS_VALUE)
2372  frame->pkt_dts += diff_ts;
2373  if (av_frame_get_pkt_duration(frame) >= diff_ts)
2374  av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2375  } else {
2376  av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
2377  }
2378  av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n",
2379  avctx->internal->skip_samples, frame->nb_samples);
2380  frame->nb_samples -= avctx->internal->skip_samples;
2381  avctx->internal->skip_samples = 0;
2382  }
2383  }
2384 
2385  if (discard_padding > 0 && discard_padding <= frame->nb_samples && *got_frame_ptr &&
2386  !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
2387  if (discard_padding == frame->nb_samples) {
2388  *got_frame_ptr = 0;
2389  } else {
2390  if(avctx->pkt_timebase.num && avctx->sample_rate) {
2391  int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding,
2392  (AVRational){1, avctx->sample_rate},
2393  avctx->pkt_timebase);
2394  av_frame_set_pkt_duration(frame, diff_ts);
2395  } else {
2396  av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n");
2397  }
2398  av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n",
2399  (int)discard_padding, frame->nb_samples);
2400  frame->nb_samples -= discard_padding;
2401  }
2402  }
2403 
2404  if ((avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL) && *got_frame_ptr) {
2406  if (fside) {
2407  AV_WL32(fside->data, avctx->internal->skip_samples);
2408  AV_WL32(fside->data + 4, discard_padding);
2409  AV_WL8(fside->data + 8, skip_reason);
2410  AV_WL8(fside->data + 9, discard_reason);
2411  avctx->internal->skip_samples = 0;
2412  }
2413  }
2414 fail:
2415  avctx->internal->pkt = NULL;
2416  if (did_split) {
2418  if(ret == tmp.size)
2419  ret = avpkt->size;
2420  }
2421 
2422  if (ret >= 0 && *got_frame_ptr) {
2423  if (!avctx->refcounted_frames) {
2424  int err = unrefcount_frame(avci, frame);
2425  if (err < 0)
2426  return err;
2427  }
2428  } else
2430  }
2431 
2432  av_assert0(ret <= avpkt->size);
2433 
2434  return ret;
2435 }
2436 
2437 #define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */
2439  AVPacket *outpkt, const AVPacket *inpkt)
2440 {
2441 #if CONFIG_ICONV
2442  iconv_t cd = (iconv_t)-1;
2443  int ret = 0;
2444  char *inb, *outb;
2445  size_t inl, outl;
2446  AVPacket tmp;
2447 #endif
2448 
2449  if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0)
2450  return 0;
2451 
2452 #if CONFIG_ICONV
2453  cd = iconv_open("UTF-8", avctx->sub_charenc);
2454  av_assert0(cd != (iconv_t)-1);
2455 
2456  inb = inpkt->data;
2457  inl = inpkt->size;
2458 
2459  if (inl >= INT_MAX / UTF8_MAX_BYTES - AV_INPUT_BUFFER_PADDING_SIZE) {
2460  av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n");
2461  ret = AVERROR(ENOMEM);
2462  goto end;
2463  }
2464 
2465  ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES);
2466  if (ret < 0)
2467  goto end;
2468  outpkt->buf = tmp.buf;
2469  outpkt->data = tmp.data;
2470  outpkt->size = tmp.size;
2471  outb = outpkt->data;
2472  outl = outpkt->size;
2473 
2474  if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 ||
2475  iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 ||
2476  outl >= outpkt->size || inl != 0) {
2477  ret = FFMIN(AVERROR(errno), -1);
2478  av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" "
2479  "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc);
2480  av_packet_unref(&tmp);
2481  goto end;
2482  }
2483  outpkt->size -= outl;
2484  memset(outpkt->data + outpkt->size, 0, outl);
2485 
2486 end:
2487  if (cd != (iconv_t)-1)
2488  iconv_close(cd);
2489  return ret;
2490 #else
2491  av_log(avctx, AV_LOG_ERROR, "requesting subtitles recoding without iconv");
2492  return AVERROR(EINVAL);
2493 #endif
2494 }
2495 
2496 static int utf8_check(const uint8_t *str)
2497 {
2498  const uint8_t *byte;
2499  uint32_t codepoint, min;
2500 
2501  while (*str) {
2502  byte = str;
2503  GET_UTF8(codepoint, *(byte++), return 0;);
2504  min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 :
2505  1 << (5 * (byte - str) - 4);
2506  if (codepoint < min || codepoint >= 0x110000 ||
2507  codepoint == 0xFFFE /* BOM */ ||
2508  codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */)
2509  return 0;
2510  str = byte;
2511  }
2512  return 1;
2513 }
2514 
2515 #if FF_API_ASS_TIMING
2516 static void insert_ts(AVBPrint *buf, int ts)
2517 {
2518  if (ts == -1) {
2519  av_bprintf(buf, "9:59:59.99,");
2520  } else {
2521  int h, m, s;
2522 
2523  h = ts/360000; ts -= 360000*h;
2524  m = ts/ 6000; ts -= 6000*m;
2525  s = ts/ 100; ts -= 100*s;
2526  av_bprintf(buf, "%d:%02d:%02d.%02d,", h, m, s, ts);
2527  }
2528 }
2529 
2531 {
2532  int i;
2533  AVBPrint buf;
2534 
2536 
2537  for (i = 0; i < sub->num_rects; i++) {
2538  char *final_dialog;
2539  const char *dialog;
2540  AVSubtitleRect *rect = sub->rects[i];
2541  int ts_start, ts_duration = -1;
2542  long int layer;
2543 
2544  if (rect->type != SUBTITLE_ASS || !strncmp(rect->ass, "Dialogue: ", 10))
2545  continue;
2546 
2547  av_bprint_clear(&buf);
2548 
2549  /* skip ReadOrder */
2550  dialog = strchr(rect->ass, ',');
2551  if (!dialog)
2552  continue;
2553  dialog++;
2554 
2555  /* extract Layer or Marked */
2556  layer = strtol(dialog, (char**)&dialog, 10);
2557  if (*dialog != ',')
2558  continue;
2559  dialog++;
2560 
2561  /* rescale timing to ASS time base (ms) */
2562  ts_start = av_rescale_q(pkt->pts, tb, av_make_q(1, 100));
2563  if (pkt->duration != -1)
2564  ts_duration = av_rescale_q(pkt->duration, tb, av_make_q(1, 100));
2565  sub->end_display_time = FFMAX(sub->end_display_time, 10 * ts_duration);
2566 
2567  /* construct ASS (standalone file form with timestamps) string */
2568  av_bprintf(&buf, "Dialogue: %ld,", layer);
2569  insert_ts(&buf, ts_start);
2570  insert_ts(&buf, ts_duration == -1 ? -1 : ts_start + ts_duration);
2571  av_bprintf(&buf, "%s\r\n", dialog);
2572 
2573  final_dialog = av_strdup(buf.str);
2574  if (!av_bprint_is_complete(&buf) || !final_dialog) {
2575  av_freep(&final_dialog);
2576  av_bprint_finalize(&buf, NULL);
2577  return AVERROR(ENOMEM);
2578  }
2579  av_freep(&rect->ass);
2580  rect->ass = final_dialog;
2581  }
2582 
2583  av_bprint_finalize(&buf, NULL);
2584  return 0;
2585 }
2586 #endif
2587 
2589  int *got_sub_ptr,
2590  AVPacket *avpkt)
2591 {
2592  int i, ret = 0;
2593 
2594  if (!avpkt->data && avpkt->size) {
2595  av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2596  return AVERROR(EINVAL);
2597  }
2598  if (!avctx->codec)
2599  return AVERROR(EINVAL);
2600  if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) {
2601  av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n");
2602  return AVERROR(EINVAL);
2603  }
2604 
2605  *got_sub_ptr = 0;
2606  get_subtitle_defaults(sub);
2607 
2608  if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size) {
2609  AVPacket pkt_recoded;
2610  AVPacket tmp = *avpkt;
2611  int did_split = av_packet_split_side_data(&tmp);
2612  //apply_param_change(avctx, &tmp);
2613 
2614  if (did_split) {
2615  /* FFMIN() prevents overflow in case the packet wasn't allocated with
2616  * proper padding.
2617  * If the side data is smaller than the buffer padding size, the
2618  * remaining bytes should have already been filled with zeros by the
2619  * original packet allocation anyway. */
2620  memset(tmp.data + tmp.size, 0,
2621  FFMIN(avpkt->size - tmp.size, AV_INPUT_BUFFER_PADDING_SIZE));
2622  }
2623 
2624  pkt_recoded = tmp;
2625  ret = recode_subtitle(avctx, &pkt_recoded, &tmp);
2626  if (ret < 0) {
2627  *got_sub_ptr = 0;
2628  } else {
2629  avctx->internal->pkt = &pkt_recoded;
2630 
2631  if (avctx->pkt_timebase.num && avpkt->pts != AV_NOPTS_VALUE)
2632  sub->pts = av_rescale_q(avpkt->pts,
2633  avctx->pkt_timebase, AV_TIME_BASE_Q);
2634  ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded);
2635  av_assert1((ret >= 0) >= !!*got_sub_ptr &&
2636  !!*got_sub_ptr >= !!sub->num_rects);
2637 
2638 #if FF_API_ASS_TIMING
2640  && *got_sub_ptr && sub->num_rects) {
2641  const AVRational tb = avctx->pkt_timebase.num ? avctx->pkt_timebase
2642  : avctx->time_base;
2643  int err = convert_sub_to_old_ass_form(sub, avpkt, tb);
2644  if (err < 0)
2645  ret = err;
2646  }
2647 #endif
2648 
2649  if (sub->num_rects && !sub->end_display_time && avpkt->duration &&
2650  avctx->pkt_timebase.num) {
2651  AVRational ms = { 1, 1000 };
2652  sub->end_display_time = av_rescale_q(avpkt->duration,
2653  avctx->pkt_timebase, ms);
2654  }
2655 
2656  for (i = 0; i < sub->num_rects; i++) {
2657  if (sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) {
2658  av_log(avctx, AV_LOG_ERROR,
2659  "Invalid UTF-8 in decoded subtitles text; "
2660  "maybe missing -sub_charenc option\n");
2661  avsubtitle_free(sub);
2662  return AVERROR_INVALIDDATA;
2663  }
2664  }
2665 
2666  if (tmp.data != pkt_recoded.data) { // did we recode?
2667  /* prevent from destroying side data from original packet */
2668  pkt_recoded.side_data = NULL;
2669  pkt_recoded.side_data_elems = 0;
2670 
2671  av_packet_unref(&pkt_recoded);
2672  }
2674  sub->format = 0;
2675  else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB)
2676  sub->format = 1;
2677  avctx->internal->pkt = NULL;
2678  }
2679 
2680  if (did_split) {
2682  if(ret == tmp.size)
2683  ret = avpkt->size;
2684  }
2685 
2686  if (*got_sub_ptr)
2687  avctx->frame_number++;
2688  }
2689 
2690  return ret;
2691 }
2692 
2694 {
2695  int i;
2696 
2697  for (i = 0; i < sub->num_rects; i++) {
2698  av_freep(&sub->rects[i]->data[0]);
2699  av_freep(&sub->rects[i]->data[1]);
2700  av_freep(&sub->rects[i]->data[2]);
2701  av_freep(&sub->rects[i]->data[3]);
2702  av_freep(&sub->rects[i]->text);
2703  av_freep(&sub->rects[i]->ass);
2704  av_freep(&sub->rects[i]);
2705  }
2706 
2707  av_freep(&sub->rects);
2708 
2709  memset(sub, 0, sizeof(AVSubtitle));
2710 }
2711 
2712 static int do_decode(AVCodecContext *avctx, AVPacket *pkt)
2713 {
2714  int got_frame;
2715  int ret;
2716 
2717  av_assert0(!avctx->internal->buffer_frame->buf[0]);
2718 
2719  if (!pkt)
2720  pkt = avctx->internal->buffer_pkt;
2721 
2722  // This is the lesser evil. The field is for compatibility with legacy users
2723  // of the legacy API, and users using the new API should not be forced to
2724  // even know about this field.
2725  avctx->refcounted_frames = 1;
2726 
2727  // Some codecs (at least wma lossless) will crash when feeding drain packets
2728  // after EOF was signaled.
2729  if (avctx->internal->draining_done)
2730  return AVERROR_EOF;
2731 
2732  if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
2733  ret = avcodec_decode_video2(avctx, avctx->internal->buffer_frame,
2734  &got_frame, pkt);
2735  if (ret >= 0)
2736  ret = pkt->size;
2737  } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2738  ret = avcodec_decode_audio4(avctx, avctx->internal->buffer_frame,
2739  &got_frame, pkt);
2740  } else {
2741  ret = AVERROR(EINVAL);
2742  }
2743 
2744  if (ret == AVERROR(EAGAIN))
2745  ret = pkt->size;
2746 
2747  if (ret < 0)
2748  return ret;
2749 
2750  if (avctx->internal->draining && !got_frame)
2751  avctx->internal->draining_done = 1;
2752 
2753  if (ret >= pkt->size) {
2755  } else {
2756  int consumed = ret;
2757 
2758  if (pkt != avctx->internal->buffer_pkt) {
2760  if ((ret = av_packet_ref(avctx->internal->buffer_pkt, pkt)) < 0)
2761  return ret;
2762  }
2763 
2764  avctx->internal->buffer_pkt->data += consumed;
2765  avctx->internal->buffer_pkt->size -= consumed;
2768  }
2769 
2770  if (got_frame)
2771  av_assert0(avctx->internal->buffer_frame->buf[0]);
2772 
2773  return 0;
2774 }
2775 
2776 int attribute_align_arg avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt)
2777 {
2778  int ret;
2779 
2780  if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec))
2781  return AVERROR(EINVAL);
2782 
2783  if (avctx->internal->draining)
2784  return AVERROR_EOF;
2785 
2786  if (!avpkt || !avpkt->size) {
2787  avctx->internal->draining = 1;
2788  avpkt = NULL;
2789 
2790  if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
2791  return 0;
2792  }
2793 
2794  if (avctx->codec->send_packet) {
2795  if (avpkt) {
2796  AVPacket tmp = *avpkt;
2797  int did_split = av_packet_split_side_data(&tmp);
2798  ret = apply_param_change(avctx, &tmp);
2799  if (ret >= 0)
2800  ret = avctx->codec->send_packet(avctx, &tmp);
2801  if (did_split)
2803  return ret;
2804  } else {
2805  return avctx->codec->send_packet(avctx, NULL);
2806  }
2807  }
2808 
2809  // Emulation via old API. Assume avpkt is likely not refcounted, while
2810  // decoder output is always refcounted, and avoid copying.
2811 
2812  if (avctx->internal->buffer_pkt->size || avctx->internal->buffer_frame->buf[0])
2813  return AVERROR(EAGAIN);
2814 
2815  // The goal is decoding the first frame of the packet without using memcpy,
2816  // because the common case is having only 1 frame per packet (especially
2817  // with video, but audio too). In other cases, it can't be avoided, unless
2818  // the user is feeding refcounted packets.
2819  return do_decode(avctx, (AVPacket *)avpkt);
2820 }
2821 
2822 int attribute_align_arg avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
2823 {
2824  int ret;
2825 
2826  av_frame_unref(frame);
2827 
2828  if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec))
2829  return AVERROR(EINVAL);
2830 
2831  if (avctx->codec->receive_frame) {
2832  if (avctx->internal->draining && !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
2833  return AVERROR_EOF;
2834  return avctx->codec->receive_frame(avctx, frame);
2835  }
2836 
2837  // Emulation via old API.
2838 
2839  if (!avctx->internal->buffer_frame->buf[0]) {
2840  if (!avctx->internal->buffer_pkt->size && !avctx->internal->draining)
2841  return AVERROR(EAGAIN);
2842 
2843  while (1) {
2844  if ((ret = do_decode(avctx, avctx->internal->buffer_pkt)) < 0) {
2846  return ret;
2847  }
2848  // Some audio decoders may consume partial data without returning
2849  // a frame (fate-wmapro-2ch). There is no way to make the caller
2850  // call avcodec_receive_frame() again without returning a frame,
2851  // so try to decode more in these cases.
2852  if (avctx->internal->buffer_frame->buf[0] ||
2853  !avctx->internal->buffer_pkt->size)
2854  break;
2855  }
2856  }
2857 
2858  if (!avctx->internal->buffer_frame->buf[0])
2859  return avctx->internal->draining ? AVERROR_EOF : AVERROR(EAGAIN);
2860 
2861  av_frame_move_ref(frame, avctx->internal->buffer_frame);
2862  return 0;
2863 }
2864 
2865 static int do_encode(AVCodecContext *avctx, const AVFrame *frame, int *got_packet)
2866 {
2867  int ret;
2868  *got_packet = 0;
2869 
2871  avctx->internal->buffer_pkt_valid = 0;
2872 
2873  if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
2874  ret = avcodec_encode_video2(avctx, avctx->internal->buffer_pkt,
2875  frame, got_packet);
2876  } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2877  ret = avcodec_encode_audio2(avctx, avctx->internal->buffer_pkt,
2878  frame, got_packet);
2879  } else {
2880  ret = AVERROR(EINVAL);
2881  }
2882 
2883  if (ret >= 0 && *got_packet) {
2884  // Encoders must always return ref-counted buffers.
2885  // Side-data only packets have no data and can be not ref-counted.
2886  av_assert0(!avctx->internal->buffer_pkt->data || avctx->internal->buffer_pkt->buf);
2887  avctx->internal->buffer_pkt_valid = 1;
2888  ret = 0;
2889  } else {
2891  }
2892 
2893  return ret;
2894 }
2895 
2896 int attribute_align_arg avcodec_send_frame(AVCodecContext *avctx, const AVFrame *frame)
2897 {
2898  if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec))
2899  return AVERROR(EINVAL);
2900 
2901  if (avctx->internal->draining)
2902  return AVERROR_EOF;
2903 
2904  if (!frame) {
2905  avctx->internal->draining = 1;
2906 
2907  if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
2908  return 0;
2909  }
2910 
2911  if (avctx->codec->send_frame)
2912  return avctx->codec->send_frame(avctx, frame);
2913 
2914  // Emulation via old API. Do it here instead of avcodec_receive_packet, because:
2915  // 1. if the AVFrame is not refcounted, the copying will be much more
2916  // expensive than copying the packet data
2917  // 2. assume few users use non-refcounted AVPackets, so usually no copy is
2918  // needed
2919 
2920  if (avctx->internal->buffer_pkt_valid)
2921  return AVERROR(EAGAIN);
2922 
2923  return do_encode(avctx, frame, &(int){0});
2924 }
2925 
2926 int attribute_align_arg avcodec_receive_packet(AVCodecContext *avctx, AVPacket *avpkt)
2927 {
2928  av_packet_unref(avpkt);
2929 
2930  if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec))
2931  return AVERROR(EINVAL);
2932 
2933  if (avctx->codec->receive_packet) {
2934  if (avctx->internal->draining && !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
2935  return AVERROR_EOF;
2936  return avctx->codec->receive_packet(avctx, avpkt);
2937  }
2938 
2939  // Emulation via old API.
2940 
2941  if (!avctx->internal->buffer_pkt_valid) {
2942  int got_packet;
2943  int ret;
2944  if (!avctx->internal->draining)
2945  return AVERROR(EAGAIN);
2946  ret = do_encode(avctx, NULL, &got_packet);
2947  if (ret < 0)
2948  return ret;
2949  if (ret >= 0 && !got_packet)
2950  return AVERROR_EOF;
2951  }
2952 
2953  av_packet_move_ref(avpkt, avctx->internal->buffer_pkt);
2954  avctx->internal->buffer_pkt_valid = 0;
2955  return 0;
2956 }
2957 
2959 {
2960  int i;
2961 
2962  if (!avctx)
2963  return 0;
2964 
2965  if (avcodec_is_open(avctx)) {
2966  FramePool *pool = avctx->internal->pool;
2967  if (CONFIG_FRAME_THREAD_ENCODER &&
2968  avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
2970  }
2971  if (HAVE_THREADS && avctx->internal->thread_ctx)
2972  ff_thread_free(avctx);
2973  if (avctx->codec && avctx->codec->close)
2974  avctx->codec->close(avctx);
2975  avctx->internal->byte_buffer_size = 0;
2976  av_freep(&avctx->internal->byte_buffer);
2977  av_frame_free(&avctx->internal->to_free);
2980  for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
2981  av_buffer_pool_uninit(&pool->pools[i]);
2982  av_freep(&avctx->internal->pool);
2983 
2984  if (avctx->hwaccel && avctx->hwaccel->uninit)
2985  avctx->hwaccel->uninit(avctx);
2987 
2988  av_freep(&avctx->internal);
2989  }
2990 
2991  for (i = 0; i < avctx->nb_coded_side_data; i++)
2992  av_freep(&avctx->coded_side_data[i].data);
2993  av_freep(&avctx->coded_side_data);
2994  avctx->nb_coded_side_data = 0;
2995 
2996  av_buffer_unref(&avctx->hw_frames_ctx);
2997 
2998  if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
2999  av_opt_free(avctx->priv_data);
3000  av_opt_free(avctx);
3001  av_freep(&avctx->priv_data);
3002  if (av_codec_is_encoder(avctx->codec)) {
3003  av_freep(&avctx->extradata);
3004 #if FF_API_CODED_FRAME
3006  av_frame_free(&avctx->coded_frame);
3008 #endif
3009  }
3010  avctx->codec = NULL;
3011  avctx->active_thread_type = 0;
3012 
3013  return 0;
3014 }
3015 
3017 {
3018  switch(id){
3019  //This is for future deprecatec codec ids, its empty since
3020  //last major bump but will fill up again over time, please don't remove it
3021  default : return id;
3022  }
3023 }
3024 
3025 static AVCodec *find_encdec(enum AVCodecID id, int encoder)
3026 {
3027  AVCodec *p, *experimental = NULL;
3028  p = first_avcodec;
3029  id= remap_deprecated_codec_id(id);
3030  while (p) {
3031  if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) &&
3032  p->id == id) {
3033  if (p->capabilities & AV_CODEC_CAP_EXPERIMENTAL && !experimental) {
3034  experimental = p;
3035  } else
3036  return p;
3037  }
3038  p = p->next;
3039  }
3040  return experimental;
3041 }
3042 
3044 {
3045  return find_encdec(id, 1);
3046 }
3047 
3049 {
3050  AVCodec *p;
3051  if (!name)
3052  return NULL;
3053  p = first_avcodec;
3054  while (p) {
3055  if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0)
3056  return p;
3057  p = p->next;
3058  }
3059  return NULL;
3060 }
3061 
3063 {
3064  return find_encdec(id, 0);
3065 }
3066 
3068 {
3069  AVCodec *p;
3070  if (!name)
3071  return NULL;
3072  p = first_avcodec;
3073  while (p) {
3074  if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0)
3075  return p;
3076  p = p->next;
3077  }
3078  return NULL;
3079 }
3080 
3081 const char *avcodec_get_name(enum AVCodecID id)
3082 {
3083  const AVCodecDescriptor *cd;
3084  AVCodec *codec;
3085 
3086  if (id == AV_CODEC_ID_NONE)
3087  return "none";
3088  cd = avcodec_descriptor_get(id);
3089  if (cd)
3090  return cd->name;
3091  av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
3092  codec = avcodec_find_decoder(id);
3093  if (codec)
3094  return codec->name;
3095  codec = avcodec_find_encoder(id);
3096  if (codec)
3097  return codec->name;
3098  return "unknown_codec";
3099 }
3100 
3101 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
3102 {
3103  int i, len, ret = 0;
3104 
3105 #define TAG_PRINT(x) \
3106  (((x) >= '0' && (x) <= '9') || \
3107  ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
3108  ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
3109 
3110  for (i = 0; i < 4; i++) {
3111  len = snprintf(buf, buf_size,
3112  TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
3113  buf += len;
3114  buf_size = buf_size > len ? buf_size - len : 0;
3115  ret += len;
3116  codec_tag >>= 8;
3117  }
3118  return ret;
3119 }
3120 
3121 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
3122 {
3123  const char *codec_type;
3124  const char *codec_name;
3125  const char *profile = NULL;
3126  int64_t bitrate;
3127  int new_line = 0;
3128  AVRational display_aspect_ratio;
3129  const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
3130 
3131  if (!buf || buf_size <= 0)
3132  return;
3133  codec_type = av_get_media_type_string(enc->codec_type);
3134  codec_name = avcodec_get_name(enc->codec_id);
3135  profile = avcodec_profile_name(enc->codec_id, enc->profile);
3136 
3137  snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
3138  codec_name);
3139  buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
3140 
3141  if (enc->codec && strcmp(enc->codec->name, codec_name))
3142  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
3143 
3144  if (profile)
3145  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
3146  if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
3148  && enc->refs)
3149  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3150  ", %d reference frame%s",
3151  enc->refs, enc->refs > 1 ? "s" : "");
3152 
3153  if (enc->codec_tag) {
3154  char tag_buf[32];
3155  av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
3156  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3157  " (%s / 0x%04X)", tag_buf, enc->codec_tag);
3158  }
3159 
3160  switch (enc->codec_type) {
3161  case AVMEDIA_TYPE_VIDEO:
3162  {
3163  char detail[256] = "(";
3164 
3165  av_strlcat(buf, separator, buf_size);
3166 
3167  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3168  "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
3170  if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
3172  av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
3174  av_strlcatf(detail, sizeof(detail), "%s, ",
3176 
3177  if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
3179  enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
3180  if (enc->colorspace != (int)enc->color_primaries ||
3181  enc->colorspace != (int)enc->color_trc) {
3182  new_line = 1;
3183  av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
3187  } else
3188  av_strlcatf(detail, sizeof(detail), "%s, ",
3190  }
3191 
3192  if (av_log_get_level() >= AV_LOG_DEBUG &&
3194  av_strlcatf(detail, sizeof(detail), "%s, ",
3196 
3197  if (strlen(detail) > 1) {
3198  detail[strlen(detail) - 2] = 0;
3199  av_strlcatf(buf, buf_size, "%s)", detail);
3200  }
3201  }
3202 
3203  if (enc->width) {
3204  av_strlcat(buf, new_line ? separator : ", ", buf_size);
3205 
3206  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3207  "%dx%d",
3208  enc->width, enc->height);
3209 
3210  if (av_log_get_level() >= AV_LOG_VERBOSE &&
3211  (enc->width != enc->coded_width ||
3212  enc->height != enc->coded_height))
3213  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3214  " (%dx%d)", enc->coded_width, enc->coded_height);
3215 
3216  if (enc->sample_aspect_ratio.num) {
3217  av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
3218  enc->width * (int64_t)enc->sample_aspect_ratio.num,
3219  enc->height * (int64_t)enc->sample_aspect_ratio.den,
3220  1024 * 1024);
3221  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3222  " [SAR %d:%d DAR %d:%d]",
3224  display_aspect_ratio.num, display_aspect_ratio.den);
3225  }
3226  if (av_log_get_level() >= AV_LOG_DEBUG) {
3227  int g = av_gcd(enc->time_base.num, enc->time_base.den);
3228  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3229  ", %d/%d",
3230  enc->time_base.num / g, enc->time_base.den / g);
3231  }
3232  }
3233  if (encode) {
3234  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3235  ", q=%d-%d", enc->qmin, enc->qmax);
3236  } else {
3238  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3239  ", Closed Captions");
3241  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3242  ", lossless");
3243  }
3244  break;
3245  case AVMEDIA_TYPE_AUDIO:
3246  av_strlcat(buf, separator, buf_size);
3247 
3248  if (enc->sample_rate) {
3249  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3250  "%d Hz, ", enc->sample_rate);
3251  }
3252  av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
3253  if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
3254  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3255  ", %s", av_get_sample_fmt_name(enc->sample_fmt));
3256  }
3257  if ( enc->bits_per_raw_sample > 0
3259  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3260  " (%d bit)", enc->bits_per_raw_sample);
3261  if (enc->initial_padding || enc->trailing_padding) {
3262  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3263  ", delay %d, padding %d", enc->initial_padding, enc->trailing_padding);
3264  }
3265  break;
3266  case AVMEDIA_TYPE_DATA:
3267  if (av_log_get_level() >= AV_LOG_DEBUG) {
3268  int g = av_gcd(enc->time_base.num, enc->time_base.den);
3269  if (g)
3270  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3271  ", %d/%d",
3272  enc->time_base.num / g, enc->time_base.den / g);
3273  }
3274  break;
3275  case AVMEDIA_TYPE_SUBTITLE:
3276  if (enc->width)
3277  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3278  ", %dx%d", enc->width, enc->height);
3279  break;
3280  default:
3281  return;
3282  }
3283  if (encode) {
3284  if (enc->flags & AV_CODEC_FLAG_PASS1)
3285  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3286  ", pass 1");
3287  if (enc->flags & AV_CODEC_FLAG_PASS2)
3288  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3289  ", pass 2");
3290  }
3291  bitrate = get_bit_rate(enc);
3292  if (bitrate != 0) {
3293  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3294  ", %"PRId64" kb/s", bitrate / 1000);
3295  } else if (enc->rc_max_rate > 0) {
3296  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3297  ", max. %"PRId64" kb/s", (int64_t)enc->rc_max_rate / 1000);
3298  }
3299 }
3300 
3301 const char *av_get_profile_name(const AVCodec *codec, int profile)
3302 {
3303  const AVProfile *p;
3304  if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
3305  return NULL;
3306 
3307  for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
3308  if (p->profile == profile)
3309  return p->name;
3310 
3311  return NULL;
3312 }
3313 
3315 {
3316  const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
3317  const AVProfile *p;
3318 
3319  if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
3320  return NULL;
3321 
3322  for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
3323  if (p->profile == profile)
3324  return p->name;
3325 
3326  return NULL;
3327 }
3328 
3329 unsigned avcodec_version(void)
3330 {
3331 // av_assert0(AV_CODEC_ID_V410==164);
3334 // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
3335  av_assert0(AV_CODEC_ID_SRT==94216);
3337 
3338  return LIBAVCODEC_VERSION_INT;
3339 }
3340 
3341 const char *avcodec_configuration(void)
3342 {
3343  return FFMPEG_CONFIGURATION;
3344 }
3345 
3346 const char *avcodec_license(void)
3347 {
3348 #define LICENSE_PREFIX "libavcodec license: "
3349  return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
3350 }
3351 
3353 {
3354  avctx->internal->draining = 0;
3355  avctx->internal->draining_done = 0;
3358  avctx->internal->buffer_pkt_valid = 0;
3359 
3360  if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
3361  ff_thread_flush(avctx);
3362  else if (avctx->codec->flush)
3363  avctx->codec->flush(avctx);
3364 
3365  avctx->pts_correction_last_pts =
3366  avctx->pts_correction_last_dts = INT64_MIN;
3367 
3368  if (!avctx->refcounted_frames)
3369  av_frame_unref(avctx->internal->to_free);
3370 }
3371 
3373 {
3374  switch (codec_id) {
3375  case AV_CODEC_ID_8SVX_EXP:
3376  case AV_CODEC_ID_8SVX_FIB:
3377  case AV_CODEC_ID_ADPCM_CT:
3385  return 4;
3386  case AV_CODEC_ID_DSD_LSBF:
3387  case AV_CODEC_ID_DSD_MSBF:
3390  case AV_CODEC_ID_PCM_ALAW:
3391  case AV_CODEC_ID_PCM_MULAW:
3392  case AV_CODEC_ID_PCM_S8:
3394  case AV_CODEC_ID_PCM_U8:
3395  case AV_CODEC_ID_PCM_ZORK:
3396  case AV_CODEC_ID_SDX2_DPCM:
3397  return 8;
3398  case AV_CODEC_ID_PCM_S16BE:
3400  case AV_CODEC_ID_PCM_S16LE:
3402  case AV_CODEC_ID_PCM_U16BE:
3403  case AV_CODEC_ID_PCM_U16LE:
3404  return 16;
3406  case AV_CODEC_ID_PCM_S24BE:
3407  case AV_CODEC_ID_PCM_S24LE:
3409  case AV_CODEC_ID_PCM_U24BE:
3410  case AV_CODEC_ID_PCM_U24LE:
3411  return 24;
3412  case AV_CODEC_ID_PCM_S32BE:
3413  case AV_CODEC_ID_PCM_S32LE:
3415  case AV_CODEC_ID_PCM_U32BE:
3416  case AV_CODEC_ID_PCM_U32LE:
3417  case AV_CODEC_ID_PCM_F32BE:
3418  case AV_CODEC_ID_PCM_F32LE:
3419  return 32;
3420  case AV_CODEC_ID_PCM_F64BE:
3421  case AV_CODEC_ID_PCM_F64LE:
3422  case AV_CODEC_ID_PCM_S64BE:
3423  case AV_CODEC_ID_PCM_S64LE:
3424  return 64;
3425  default:
3426  return 0;
3427  }
3428 }
3429 
3431 {
3432  static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
3444  };
3445  if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
3446  return AV_CODEC_ID_NONE;
3447  if (be < 0 || be > 1)
3448  be = AV_NE(1, 0);
3449  return map[fmt][be];
3450 }
3451 
3453 {
3454  switch (codec_id) {
3456  return 2;
3458  return 3;
3462  case AV_CODEC_ID_ADPCM_SWF:
3463  case AV_CODEC_ID_ADPCM_MS:
3464  return 4;
3465  default:
3466  return av_get_exact_bits_per_sample(codec_id);
3467  }
3468 }
3469 
3470 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
3471  uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
3472  uint8_t * extradata, int frame_size, int frame_bytes)
3473 {
3475  int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
3476 
3477  /* codecs with an exact constant bits per sample */
3478  if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
3479  return (frame_bytes * 8LL) / (bps * ch);
3480  bps = bits_per_coded_sample;
3481 
3482  /* codecs with a fixed packet duration */
3483  switch (id) {
3484  case AV_CODEC_ID_ADPCM_ADX: return 32;
3485  case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
3486  case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
3487  case AV_CODEC_ID_AMR_NB:
3488  case AV_CODEC_ID_EVRC:
3489  case AV_CODEC_ID_GSM:
3490  case AV_CODEC_ID_QCELP:
3491  case AV_CODEC_ID_RA_288: return 160;
3492  case AV_CODEC_ID_AMR_WB:
3493  case AV_CODEC_ID_GSM_MS: return 320;
3494  case AV_CODEC_ID_MP1: return 384;
3495  case AV_CODEC_ID_ATRAC1: return 512;
3496  case AV_CODEC_ID_ATRAC3: return 1024 * framecount;
3497  case AV_CODEC_ID_ATRAC3P: return 2048;
3498  case AV_CODEC_ID_MP2:
3499  case AV_CODEC_ID_MUSEPACK7: return 1152;
3500  case AV_CODEC_ID_AC3: return 1536;
3501  }
3502 
3503  if (sr > 0) {
3504  /* calc from sample rate */
3505  if (id == AV_CODEC_ID_TTA)
3506  return 256 * sr / 245;
3507  else if (id == AV_CODEC_ID_DST)
3508  return 588 * sr / 44100;
3509 
3510  if (ch > 0) {
3511  /* calc from sample rate and channels */
3512  if (id == AV_CODEC_ID_BINKAUDIO_DCT)
3513  return (480 << (sr / 22050)) / ch;
3514  }
3515  }
3516 
3517  if (ba > 0) {
3518  /* calc from block_align */
3519  if (id == AV_CODEC_ID_SIPR) {
3520  switch (ba) {
3521  case 20: return 160;
3522  case 19: return 144;
3523  case 29: return 288;
3524  case 37: return 480;
3525  }
3526  } else if (id == AV_CODEC_ID_ILBC) {
3527  switch (ba) {
3528  case 38: return 160;
3529  case 50: return 240;
3530  }
3531  }
3532  }
3533 
3534  if (frame_bytes > 0) {
3535  /* calc from frame_bytes only */
3536  if (id == AV_CODEC_ID_TRUESPEECH)
3537  return 240 * (frame_bytes / 32);
3538  if (id == AV_CODEC_ID_NELLYMOSER)
3539  return 256 * (frame_bytes / 64);
3540  if (id == AV_CODEC_ID_RA_144)
3541  return 160 * (frame_bytes / 20);
3542  if (id == AV_CODEC_ID_G723_1)
3543  return 240 * (frame_bytes / 24);
3544 
3545  if (bps > 0) {
3546  /* calc from frame_bytes and bits_per_coded_sample */
3547  if (id == AV_CODEC_ID_ADPCM_G726)
3548  return frame_bytes * 8 / bps;
3549  }
3550 
3551  if (ch > 0 && ch < INT_MAX/16) {
3552  /* calc from frame_bytes and channels */
3553  switch (id) {
3554  case AV_CODEC_ID_ADPCM_AFC:
3555  return frame_bytes / (9 * ch) * 16;
3556  case AV_CODEC_ID_ADPCM_PSX:
3557  case AV_CODEC_ID_ADPCM_DTK:
3558  return frame_bytes / (16 * ch) * 28;
3559  case AV_CODEC_ID_ADPCM_4XM:
3562  return (frame_bytes - 4 * ch) * 2 / ch;
3564  return (frame_bytes - 4) * 2 / ch;
3566  return (frame_bytes - 8) * 2 / ch;
3567  case AV_CODEC_ID_ADPCM_THP:
3569  if (extradata)
3570  return frame_bytes * 14 / (8 * ch);
3571  break;
3572  case AV_CODEC_ID_ADPCM_XA:
3573  return (frame_bytes / 128) * 224 / ch;
3575  return (frame_bytes - 6 - ch) / ch;
3576  case AV_CODEC_ID_ROQ_DPCM:
3577  return (frame_bytes - 8) / ch;
3578  case AV_CODEC_ID_XAN_DPCM:
3579  return (frame_bytes - 2 * ch) / ch;
3580  case AV_CODEC_ID_MACE3:
3581  return 3 * frame_bytes / ch;
3582  case AV_CODEC_ID_MACE6:
3583  return 6 * frame_bytes / ch;
3584  case AV_CODEC_ID_PCM_LXF:
3585  return 2 * (frame_bytes / (5 * ch));
3586  case AV_CODEC_ID_IAC:
3587  case AV_CODEC_ID_IMC:
3588  return 4 * frame_bytes / ch;
3589  }
3590 
3591  if (tag) {
3592  /* calc from frame_bytes, channels, and codec_tag */
3593  if (id == AV_CODEC_ID_SOL_DPCM) {
3594  if (tag == 3)
3595  return frame_bytes / ch;
3596  else
3597  return frame_bytes * 2 / ch;
3598  }
3599  }
3600 
3601  if (ba > 0) {
3602  /* calc from frame_bytes, channels, and block_align */
3603  int blocks = frame_bytes / ba;
3604  switch (id) {
3606  if (bps < 2 || bps > 5)
3607  return 0;
3608  return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
3610  return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
3612  return blocks * (1 + (ba - 4 * ch) * 2 / ch);
3614  return blocks * ((ba - 4 * ch) * 2 / ch);
3615  case AV_CODEC_ID_ADPCM_MS:
3616  return blocks * (2 + (ba - 7 * ch) * 2 / ch);
3618  return blocks * (ba - 16) * 2 / ch;
3619  }
3620  }
3621 
3622  if (bps > 0) {
3623  /* calc from frame_bytes, channels, and bits_per_coded_sample */
3624  switch (id) {
3625  case AV_CODEC_ID_PCM_DVD:
3626  if(bps<4)
3627  return 0;
3628  return 2 * (frame_bytes / ((bps * 2 / 8) * ch));
3630  if(bps<4)
3631  return 0;
3632  return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8);
3633  case AV_CODEC_ID_S302M:
3634  return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
3635  }
3636  }
3637  }
3638  }
3639 
3640  /* Fall back on using frame_size */
3641  if (frame_size > 1 && frame_bytes)
3642  return frame_size;
3643 
3644  //For WMA we currently have no other means to calculate duration thus we
3645  //do it here by assuming CBR, which is true for all known cases.
3646  if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
3647  if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
3648  return (frame_bytes * 8LL * sr) / bitrate;
3649  }
3650 
3651  return 0;
3652 }
3653 
3654 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
3655 {
3656  return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
3657  avctx->channels, avctx->block_align,
3658  avctx->codec_tag, avctx->bits_per_coded_sample,
3659  avctx->bit_rate, avctx->extradata, avctx->frame_size,
3660  frame_bytes);
3661 }
3662 
3664 {
3665  return get_audio_frame_duration(par->codec_id, par->sample_rate,
3666  par->channels, par->block_align,
3667  par->codec_tag, par->bits_per_coded_sample,
3668  par->bit_rate, par->extradata, par->frame_size,
3669  frame_bytes);
3670 }
3671 
3672 #if !HAVE_THREADS
3674 {
3675  return -1;
3676 }
3677 
3678 #endif
3679 
3680 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
3681 {
3682  unsigned int n = 0;
3683 
3684  while (v >= 0xff) {
3685  *s++ = 0xff;
3686  v -= 0xff;
3687  n++;
3688  }
3689  *s = v;
3690  n++;
3691  return n;
3692 }
3693 
3694 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
3695 {
3696  int i;
3697  for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
3698  return i;
3699 }
3700 
3701 #if FF_API_MISSING_SAMPLE
3703 void av_log_missing_feature(void *avc, const char *feature, int want_sample)
3704 {
3705  av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your FFmpeg "
3706  "version to the newest one from Git. If the problem still "
3707  "occurs, it means that your file has a feature which has not "
3708  "been implemented.\n", feature);
3709  if(want_sample)
3711 }
3712 
3713 void av_log_ask_for_sample(void *avc, const char *msg, ...)
3714 {
3715  va_list argument_list;
3716 
3717  va_start(argument_list, msg);
3718 
3719  if (msg)
3720  av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
3721  av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
3722  "of this file to ftp://upload.ffmpeg.org/incoming/ "
3723  "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n");
3724 
3725  va_end(argument_list);
3726 }
3728 #endif /* FF_API_MISSING_SAMPLE */
3729 
3732 
3734 {
3735  AVHWAccel **p = last_hwaccel;
3736  hwaccel->next = NULL;
3737  while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, hwaccel))
3738  p = &(*p)->next;
3739  last_hwaccel = &hwaccel->next;
3740 }
3741 
3743 {
3744  return hwaccel ? hwaccel->next : first_hwaccel;
3745 }
3746 
3747 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
3748 {
3749  if (lockmgr_cb) {
3750  // There is no good way to rollback a failure to destroy the
3751  // mutex, so we ignore failures.
3754  lockmgr_cb = NULL;
3755  codec_mutex = NULL;
3756  avformat_mutex = NULL;
3757  }
3758 
3759  if (cb) {
3760  void *new_codec_mutex = NULL;
3761  void *new_avformat_mutex = NULL;
3762  int err;
3763  if (err = cb(&new_codec_mutex, AV_LOCK_CREATE)) {
3764  return err > 0 ? AVERROR_UNKNOWN : err;
3765  }
3766  if (err = cb(&new_avformat_mutex, AV_LOCK_CREATE)) {
3767  // Ignore failures to destroy the newly created mutex.
3768  cb(&new_codec_mutex, AV_LOCK_DESTROY);
3769  return err > 0 ? AVERROR_UNKNOWN : err;
3770  }
3771  lockmgr_cb = cb;
3772  codec_mutex = new_codec_mutex;
3773  avformat_mutex = new_avformat_mutex;
3774  }
3775 
3776  return 0;
3777 }
3778 
3779 int ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
3780 {
3781  if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init)
3782  return 0;
3783 
3784  if (lockmgr_cb) {
3786  return -1;
3787  }
3788 
3790  av_log(log_ctx, AV_LOG_ERROR,
3791  "Insufficient thread locking. At least %d threads are "
3792  "calling avcodec_open2() at the same time right now.\n",
3794  if (!lockmgr_cb)
3795  av_log(log_ctx, AV_LOG_ERROR, "No lock manager is set, please see av_lockmgr_register()\n");
3796  ff_avcodec_locked = 1;
3797  ff_unlock_avcodec(codec);
3798  return AVERROR(EINVAL);
3799  }
3801  ff_avcodec_locked = 1;
3802  return 0;
3803 }
3804 
3805 int ff_unlock_avcodec(const AVCodec *codec)
3806 {
3807  if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init)
3808  return 0;
3809 
3811  ff_avcodec_locked = 0;
3813  if (lockmgr_cb) {
3815  return -1;
3816  }
3817 
3818  return 0;
3819 }
3820 
3822 {
3823  if (lockmgr_cb) {
3825  return -1;
3826  }
3827  return 0;
3828 }
3829 
3831 {
3832  if (lockmgr_cb) {
3834  return -1;
3835  }
3836  return 0;
3837 }
3838 
3839 unsigned int avpriv_toupper4(unsigned int x)
3840 {
3841  return av_toupper(x & 0xFF) +
3842  (av_toupper((x >> 8) & 0xFF) << 8) +
3843  (av_toupper((x >> 16) & 0xFF) << 16) +
3844 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
3845 }
3846 
3848 {
3849  int ret;
3850 
3851  dst->owner = src->owner;
3852 
3853  ret = av_frame_ref(dst->f, src->f);
3854  if (ret < 0)
3855  return ret;
3856 
3857  av_assert0(!dst->progress);
3858 
3859  if (src->progress &&
3860  !(dst->progress = av_buffer_ref(src->progress))) {
3861  ff_thread_release_buffer(dst->owner, dst);
3862  return AVERROR(ENOMEM);
3863  }
3864 
3865  return 0;
3866 }
3867 
3868 #if !HAVE_THREADS
3869 
3871 {
3872  return ff_get_format(avctx, fmt);
3873 }
3874 
3876 {
3877  f->owner = avctx;
3878  return ff_get_buffer(avctx, f->f, flags);
3879 }
3880 
3882 {
3883  if (f->f)
3884  av_frame_unref(f->f);
3885 }
3886 
3888 {
3889 }
3890 
3891 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
3892 {
3893 }
3894 
3895 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
3896 {
3897 }
3898 
3900 {
3901  return 1;
3902 }
3903 
3905 {
3906  return 0;
3907 }
3908 
3910 {
3911 }
3912 
3913 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
3914 {
3915 }
3916 
3917 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
3918 {
3919 }
3920 
3921 #endif
3922 
3924 {
3925  return !!s->internal;
3926 }
3927 
3928 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
3929 {
3930  int ret;
3931  char *str;
3932 
3933  ret = av_bprint_finalize(buf, &str);
3934  if (ret < 0)
3935  return ret;
3936  if (!av_bprint_is_complete(buf)) {
3937  av_free(str);
3938  return AVERROR(ENOMEM);
3939  }
3940 
3941  avctx->extradata = str;
3942  /* Note: the string is NUL terminated (so extradata can be read as a
3943  * string), but the ending character is not accounted in the size (in
3944  * binary formats you are likely not supposed to mux that character). When
3945  * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
3946  * zeros. */
3947  avctx->extradata_size = buf->len;
3948  return 0;
3949 }
3950 
3951 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
3952  const uint8_t *end,
3953  uint32_t *av_restrict state)
3954 {
3955  int i;
3956 
3957  av_assert0(p <= end);
3958  if (p >= end)
3959  return end;
3960 
3961  for (i = 0; i < 3; i++) {
3962  uint32_t tmp = *state << 8;
3963  *state = tmp + *(p++);
3964  if (tmp == 0x100 || p == end)
3965  return p;
3966  }
3967 
3968  while (p < end) {
3969  if (p[-1] > 1 ) p += 3;
3970  else if (p[-2] ) p += 2;
3971  else if (p[-3]|(p[-1]-1)) p++;
3972  else {
3973  p++;
3974  break;
3975  }
3976  }
3977 
3978  p = FFMIN(p, end) - 4;
3979  *state = AV_RB32(p);
3980 
3981  return p + 4;
3982 }
3983 
3985 {
3986  AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
3987  if (!props)
3988  return NULL;
3989 
3990  if (size)
3991  *size = sizeof(*props);
3992 
3993  props->vbv_delay = UINT64_MAX;
3994 
3995  return props;
3996 }
3997 
3999 {
4001  AVCPBProperties *props;
4002  size_t size;
4003 
4004  props = av_cpb_properties_alloc(&size);
4005  if (!props)
4006  return NULL;
4007 
4008  tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
4009  if (!tmp) {
4010  av_freep(&props);
4011  return NULL;
4012  }
4013 
4014  avctx->coded_side_data = tmp;
4015  avctx->nb_coded_side_data++;
4016 
4018  avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
4019  avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
4020 
4021  return props;
4022 }
4023 
4025 {
4026  av_freep(&par->extradata);
4027 
4028  memset(par, 0, sizeof(*par));
4029 
4031  par->codec_id = AV_CODEC_ID_NONE;
4032  par->format = -1;
4039  par->sample_aspect_ratio = (AVRational){ 0, 1 };
4040  par->profile = FF_PROFILE_UNKNOWN;
4041  par->level = FF_LEVEL_UNKNOWN;
4042 }
4043 
4045 {
4046  AVCodecParameters *par = av_mallocz(sizeof(*par));
4047 
4048  if (!par)
4049  return NULL;
4051  return par;
4052 }
4053 
4055 {
4056  AVCodecParameters *par = *ppar;
4057 
4058  if (!par)
4059  return;
4061 
4062  av_freep(ppar);
4063 }
4064 
4066 {
4068  memcpy(dst, src, sizeof(*dst));
4069 
4070  dst->extradata = NULL;
4071  dst->extradata_size = 0;
4072  if (src->extradata) {
4074  if (!dst->extradata)
4075  return AVERROR(ENOMEM);
4076  memcpy(dst->extradata, src->extradata, src->extradata_size);
4077  dst->extradata_size = src->extradata_size;
4078  }
4079 
4080  return 0;
4081 }
4082 
4084  const AVCodecContext *codec)
4085 {
4087 
4088  par->codec_type = codec->codec_type;
4089  par->codec_id = codec->codec_id;
4090  par->codec_tag = codec->codec_tag;
4091 
4092  par->bit_rate = codec->bit_rate;
4095  par->profile = codec->profile;
4096  par->level = codec->level;
4097 
4098  switch (par->codec_type) {
4099  case AVMEDIA_TYPE_VIDEO:
4100  par->format = codec->pix_fmt;
4101  par->width = codec->width;
4102  par->height = codec->height;
4103  par->field_order = codec->field_order;
4104  par->color_range = codec->color_range;
4105  par->color_primaries = codec->color_primaries;
4106  par->color_trc = codec->color_trc;
4107  par->color_space = codec->colorspace;
4110  par->video_delay = codec->has_b_frames;
4111  break;
4112  case AVMEDIA_TYPE_AUDIO:
4113  par->format = codec->sample_fmt;
4114  par->channel_layout = codec->channel_layout;
4115  par->channels = codec->channels;
4116  par->sample_rate = codec->sample_rate;
4117  par->block_align = codec->block_align;
4118  par->frame_size = codec->frame_size;
4119  par->initial_padding = codec->initial_padding;
4120  par->trailing_padding = codec->trailing_padding;
4121  par->seek_preroll = codec->seek_preroll;
4122  break;
4123  case AVMEDIA_TYPE_SUBTITLE:
4124  par->width = codec->width;
4125  par->height = codec->height;
4126  break;
4127  }
4128 
4129  if (codec->extradata) {
4131  if (!par->extradata)
4132  return AVERROR(ENOMEM);
4133  memcpy(par->extradata, codec->extradata, codec->extradata_size);
4134  par->extradata_size = codec->extradata_size;
4135  }
4136 
4137  return 0;
4138 }
4139 
4141  const AVCodecParameters *par)
4142 {
4143  codec->codec_type = par->codec_type;
4144  codec->codec_id = par->codec_id;
4145  codec->codec_tag = par->codec_tag;
4146 
4147  codec->bit_rate = par->bit_rate;
4150  codec->profile = par->profile;
4151  codec->level = par->level;
4152 
4153  switch (par->codec_type) {
4154  case AVMEDIA_TYPE_VIDEO:
4155  codec->pix_fmt = par->format;
4156  codec->width = par->width;
4157  codec->height = par->height;
4158  codec->field_order = par->field_order;
4159  codec->color_range = par->color_range;
4160  codec->color_primaries = par->color_primaries;
4161  codec->color_trc = par->color_trc;
4162  codec->colorspace = par->color_space;
4165  codec->has_b_frames = par->video_delay;
4166  break;
4167  case AVMEDIA_TYPE_AUDIO:
4168  codec->sample_fmt = par->format;
4169  codec->channel_layout = par->channel_layout;
4170  codec->channels = par->channels;
4171  codec->sample_rate = par->sample_rate;
4172  codec->block_align = par->block_align;
4173  codec->frame_size = par->frame_size;
4174  codec->delay =
4175  codec->initial_padding = par->initial_padding;
4176  codec->trailing_padding = par->trailing_padding;
4177  codec->seek_preroll = par->seek_preroll;
4178  break;
4179  case AVMEDIA_TYPE_SUBTITLE:
4180  codec->width = par->width;
4181  codec->height = par->height;
4182  break;
4183  }
4184 
4185  if (par->extradata) {
4186  av_freep(&codec->extradata);
4188  if (!codec->extradata)
4189  return AVERROR(ENOMEM);
4190  memcpy(codec->extradata, par->extradata, par->extradata_size);
4191  codec->extradata_size = par->extradata_size;
4192  }
4193 
4194  return 0;
4195 }
4196 
4197 int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
4198  void **data, size_t *sei_size)
4199 {
4200  AVFrameSideData *side_data = NULL;
4201  uint8_t *sei_data;
4202 
4203  if (frame)
4204  side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
4205 
4206  if (!side_data) {
4207  *data = NULL;
4208  return 0;
4209  }
4210 
4211  *sei_size = side_data->size + 11;
4212  *data = av_mallocz(*sei_size + prefix_len);
4213  if (!*data)
4214  return AVERROR(ENOMEM);
4215  sei_data = (uint8_t*)*data + prefix_len;
4216 
4217  // country code
4218  sei_data[0] = 181;
4219  sei_data[1] = 0;
4220  sei_data[2] = 49;
4221 
4222  /**
4223  * 'GA94' is standard in North America for ATSC, but hard coding
4224  * this style may not be the right thing to do -- other formats
4225  * do exist. This information is not available in the side_data
4226  * so we are going with this right now.
4227  */
4228  AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
4229  sei_data[7] = 3;
4230  sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
4231  sei_data[9] = 0;
4232 
4233  memcpy(sei_data + 10, side_data->data, side_data->size);
4234 
4235  sei_data[side_data->size+10] = 255;
4236 
4237  return 0;
4238 }
#define AV_PIX_FMT_FLAG_PAL
Pixel format has a palette in data[1], values are indexes in this palette.
Definition: pixdesc.h:132
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
Definition: internal.h:48
#define FF_SANE_NB_CHANNELS
Definition: internal.h:73
#define FF_COMPLIANCE_EXPERIMENTAL
Allow nonstandardized experimental things.
Definition: avcodec.h:2882
static int apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
Definition: utils.c:2055
packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
Definition: pixfmt.h:82
void av_frame_set_channels(AVFrame *frame, int val)
enum AVChromaLocation chroma_location
Definition: avcodec.h:4043
float, planar
Definition: samplefmt.h:69
#define UTF8_MAX_BYTES
Definition: utils.c:2437
#define FF_SUB_CHARENC_MODE_PRE_DECODER
the AVPacket data needs to be recoded to UTF-8 before being fed to the decoder, requires iconv ...
Definition: avcodec.h:3422
#define NULL
Definition: coverity.c:32
const struct AVCodec * codec
Definition: avcodec.h:1668
planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:177
AVRational framerate
Definition: avcodec.h:3358
const char const char void * val
Definition: avisynth_c.h:771
#define avpriv_atomic_int_add_and_fetch
Definition: atomic_gcc.h:50
enum AVFieldOrder field_order
Video only.
Definition: avcodec.h:4034
static int64_t get_bit_rate(AVCodecContext *ctx)
Definition: utils.c:1173
const AVCodecDescriptor * codec_descriptor
AVCodecDescriptor Code outside libavcodec should access this field using: av_codec_{get,set}_codec_descriptor(avctx)
Definition: avcodec.h:3383
static AVCodec * find_encdec(enum AVCodecID id, int encoder)
Definition: utils.c:3025
planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
Definition: pixfmt.h:288
const char * s
Definition: avisynth_c.h:768
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:265
enum AVColorTransferCharacteristic color_trc
Definition: avcodec.h:4041
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
enum AVCodecID codec_id
Definition: ffmpeg_vaapi.c:149
Number of sample formats. DO NOT USE if linking dynamically.
Definition: samplefmt.h:74
static enum AVPixelFormat pix_fmt
#define AV_NUM_DATA_POINTERS
Definition: frame.h:185
void av_bprintf(AVBPrint *buf, const char *fmt,...)
Definition: bprint.c:94
int ff_thread_video_encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet_ptr)
int64_t av_frame_get_pkt_duration(const AVFrame *frame)
static int shift(int a, int b)
Definition: sonic.c:82
AVPacketSideDataType
Definition: avcodec.h:1351
planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:258
static av_always_inline int pthread_mutex_destroy(pthread_mutex_t *mutex)
Definition: os2threads.h:106
#define FF_SUB_CHARENC_MODE_AUTOMATIC
libavcodec will select the mode itself
Definition: avcodec.h:3421
int64_t pts_correction_num_faulty_dts
Number of incorrect PTS values so far.
Definition: avcodec.h:3402
int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame)
Set various frame properties from the codec context / packet data.
Definition: utils.c:851
void av_buffer_unref(AVBufferRef **buf)
Free a given reference and automatically free the buffer if there are no more references to it...
Definition: buffer.c:124
#define GET_UTF8(val, GET_BYTE, ERROR)
Convert a UTF-8 character (up to 4 bytes) to its 32-bit UCS-4 encoded form.
Definition: common.h:361
unsigned int fourcc
Definition: raw.h:35
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2263
This structure describes decoded (raw) audio or video data.
Definition: frame.h:184
int(* send_packet)(AVCodecContext *avctx, const AVPacket *avpkt)
Definition: avcodec.h:3670
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
Definition: utils.c:3043
int(* init)(AVCodecContext *avctx)
Initialize the hwaccel private data.
Definition: avcodec.h:3810
int stride_align[AV_NUM_DATA_POINTERS]
Definition: internal.h:97
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:101
planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:262
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:170
This side data must be associated with an audio frame and corresponds to enum AVAudioServiceType defi...
Definition: frame.h:112
enum AVCodecID id
Definition: mxfenc.c:104
#define AV_CODEC_FLAG2_SKIP_MANUAL
Do not skip samples and export skip information as frame side data.
Definition: avcodec.h:936
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:1861
int capabilities
Hardware accelerated codec capabilities.
Definition: avcodec.h:3726
const char * fmt
Definition: avisynth_c.h:769
void(* flush)(AVCodecContext *)
Flush buffers.
Definition: avcodec.h:3677
int av_lockmgr_register(int(*cb)(void **mutex, enum AVLockOp op))
Register a user provided lock manager supporting the operations specified by AVLockOp.
Definition: utils.c:3747
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:67
misc image utilities
Unlock the mutex.
Definition: avcodec.h:6126
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
AVFrame * f
Definition: thread.h:36
int64_t bit_rate
the average bitrate
Definition: avcodec.h:1724
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2303
AVFrame * to_free
Definition: internal.h:134
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:64
int64_t pos
byte position in stream, -1 if unknown
Definition: avcodec.h:1610
enum AVColorRange av_frame_get_color_range(const AVFrame *frame)
AVBufferRef * buf[AV_NUM_DATA_POINTERS]
AVBuffer references backing the data for this frame.
Definition: frame.h:363
const char * g
Definition: vf_curves.c:112
const char * desc
Definition: nvenc.c:97
int width
Definition: internal.h:96
#define LIBAVCODEC_VERSION_MICRO
Definition: version.h:32
planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:173
AVRational sample_aspect_ratio
Video only.
Definition: avcodec.h:4029
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:2698
static int do_decode(AVCodecContext *avctx, AVPacket *pkt)
Definition: utils.c:2712
int attribute_align_arg avcodec_receive_packet(AVCodecContext *avctx, AVPacket *avpkt)
Read encoded data from the encoder.
Definition: utils.c:2926
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:263
This side data should be associated with a video stream and contains Stereoscopic 3D information in f...
Definition: avcodec.h:1420
void av_opt_set_defaults(void *s)
Set the values of all AVOption fields to their default values.
Definition: opt.c:1264
const char * avcodec_configuration(void)
Return the libavcodec build-time configuration.
Definition: utils.c:3341
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:2396
int nb_extended_buf
Number of elements in extended_buf.
Definition: frame.h:381
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: avcodec.h:3953
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:180
int ff_unlock_avcodec(const AVCodec *codec)
Definition: utils.c:3805
int num
Numerator.
Definition: rational.h:59
#define FF_SUB_CHARENC_MODE_DO_NOTHING
do nothing (demuxer outputs a stream supposed to be already in UTF-8, or the codec is bitmap for inst...
Definition: avcodec.h:3420
int size
Definition: avcodec.h:1591
const char * b
Definition: vf_curves.c:113
const char * avcodec_license(void)
Return the libavcodec license.
Definition: utils.c:3346
enum AVPixelFormat pix_fmt
Supported pixel format.
Definition: avcodec.h:3720
static int get_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags)
Definition: utils.c:880
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown) That is the width of a pixel divided by the height of the pixel...
Definition: avcodec.h:2070
static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
Pad last frame with silence.
Definition: utils.c:1738
AVPacket * pkt
Current packet as passed into the decoder, to avoid having to pass the packet into every function...
Definition: internal.h:144
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition: pixfmt.h:200
int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
Encode a frame of audio.
Definition: utils.c:1775
double, planar
Definition: samplefmt.h:70
enum AVMediaType codec_type
Definition: rtp.c:37
#define AV_CODEC_PROP_TEXT_SUB
Subtitle codec is text based.
Definition: avcodec.h:723
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1887
enum AVPixelFormat pix_fmt
Definition: raw.h:34
int samples
Definition: internal.h:101
void av_frame_set_pkt_duration(AVFrame *frame, int64_t val)
int av_dict_copy(AVDictionary **dst, const AVDictionary *src, int flags)
Copy entries from one AVDictionary struct into another.
Definition: dict.c:217
int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx, AVFrame *frame, int *got_frame_ptr, const AVPacket *avpkt)
Decode the audio frame of size avpkt->size from avpkt->data into frame.
Definition: utils.c:2280
enum AVPixelFormat format
The pixel format identifying the underlying HW surface type.
Definition: hwcontext.h:201
Mastering display metadata associated with a video frame.
Definition: frame.h:118
unsigned num_rects
Definition: avcodec.h:3933
int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec)
Definition: utils.c:1163
void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
Same behaviour av_fast_malloc but the buffer has additional AV_INPUT_BUFFER_PADDING_SIZE at the end w...
Definition: utils.c:120
planar GBR 4:4:4 36bpp, little-endian
Definition: pixfmt.h:268
The following 12 formats have the disadvantage of needing 1 format for each bit depth.
Definition: pixfmt.h:167
#define AV_CODEC_CAP_EXPERIMENTAL
Codec is experimental and is thus avoided in favor of non experimental encoders.
Definition: avcodec.h:1013
void av_frame_move_ref(AVFrame *dst, AVFrame *src)
Move everything contained in src to dst and reset src.
Definition: frame.c:508
mpegvideo header.
enum AVMediaType type
Definition: avcodec.h:3586
static int convert_sub_to_old_ass_form(AVSubtitle *sub, const AVPacket *pkt, AVRational tb)
Definition: utils.c:2530
size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
Put a string representing the codec tag codec_tag in buf.
Definition: utils.c:3101
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:252
AVBufferPool * pools[4]
Pools for each data plane.
Definition: internal.h:90
int(* decode)(AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt)
Definition: avcodec.h:3656
static AVPacket pkt
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:3060
enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
Wrapper around get_format() for frame-multithreaded codecs.
Definition: utils.c:3870
int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
Converts AVChromaLocation to swscale x/y chroma position.
Definition: utils.c:447
#define AV_CODEC_CAP_AUTO_THREADS
Codec supports avctx->thread_count == 0 (auto).
Definition: avcodec.h:1033
int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub, int *got_sub_ptr, AVPacket *avpkt)
Decode a subtitle message.
Definition: utils.c:2588
int trailing_padding
Audio only.
Definition: avcodec.h:4089
void av_frame_set_pkt_size(AVFrame *frame, int val)
int profile
profile
Definition: avcodec.h:3164
planar GBR 4:4:4 36bpp, big-endian
Definition: pixfmt.h:267
AVCodec.
Definition: avcodec.h:3573
planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:139
int block_align
number of bytes per packet if constant and known or 0 Used by some WAV based audio codecs...
Definition: avcodec.h:2458
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
This struct describes the properties of an encoded stream.
Definition: avcodec.h:3945
AVLockOp
Lock operation used by lockmgr.
Definition: avcodec.h:6123
int av_bprint_finalize(AVBPrint *buf, char **ret_str)
Finalize a print buffer.
Definition: bprint.c:235
int ff_set_dimensions(AVCodecContext *s, int width, int height)
Check that the provided frame dimensions are valid and set them on the codec context.
Definition: utils.c:210
char * text
0 terminated plain UTF-8 text
Definition: avcodec.h:3917
enum AVColorSpace color_space
Definition: avcodec.h:4042
unsigned avcodec_get_edge_width(void)
Return the amount of padding in pixels which the get_buffer callback must provide around the edge of ...
Definition: utils.c:194
const char * av_color_space_name(enum AVColorSpace space)
Definition: pixdesc.c:2594
Macro definitions for various function/variable attributes.
FF_DISABLE_DEPRECATION_WARNINGS void av_log_missing_feature(void *avc, const char *feature, int want_sample)
Log a generic warning message about a missing feature.
Definition: utils.c:3703
static void * codec_mutex
Definition: utils.c:117
int frame_size
Audio only.
Definition: avcodec.h:4074
Mastering display metadata (based on SMPTE-2086:2014).
Definition: avcodec.h:1528
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:1796
int av_get_channel_layout_nb_channels(uint64_t channel_layout)
Return the number of channels in the channel layout.
AVFrameSideData * av_frame_get_side_data(const AVFrame *frame, enum AVFrameSideDataType type)
Definition: frame.c:652
AVSubtitleRect ** rects
Definition: avcodec.h:3934
int av_codec_is_decoder(const AVCodec *codec)
Definition: utils.c:173
enum AVAudioServiceType audio_service_type
Type of service that the audio stream conveys.
Definition: avcodec.h:2486
void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
Definition: utils.c:3913
int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels, enum AVSampleFormat sample_fmt, const uint8_t *buf, int buf_size, int align)
Fill AVFrame audio data and linesize pointers.
Definition: utils.c:470
int av_codec_is_encoder(const AVCodec *codec)
Definition: utils.c:168
uint64_t vbv_delay
The delay between the time the packet this structure is associated with is received and the time when...
Definition: avcodec.h:1330
planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), little-endian ...
Definition: pixfmt.h:190
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
Modify width and height values so that they will result in a memory buffer that is acceptable for the...
Definition: utils.c:432
#define FF_LEVEL_UNKNOWN
Definition: avcodec.h:3263
struct AVHWAccel * hwaccel
Hardware accelerator in use.
Definition: avcodec.h:2979
static int volatile entangled_thread_counter
Definition: utils.c:116
#define AV_CODEC_CAP_DELAY
Encoder or decoder requires flushing with NULL input at the end in order to give the complete and cor...
Definition: avcodec.h:983
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
planar GBRA 4:4:4:4 64bpp, big-endian
Definition: pixfmt.h:229
Public dictionary API.
planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
Definition: pixfmt.h:201
static double cb(void *priv, double x, double y)
Definition: vf_geq.c:97
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
Definition: internal.h:40
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:102
HMTX pthread_mutex_t
Definition: os2threads.h:49
int height
Definition: internal.h:96
void av_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
Definition: avpacket.c:62
enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat *fmt)
Definition: utils.c:1026
enum AVSampleFormat sample_fmt
audio sample format
Definition: avcodec.h:2429
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
Lock the mutex.
Definition: avcodec.h:6125
uint8_t
#define av_cold
Definition: attributes.h:82
#define av_malloc(s)
AV_SAMPLE_FMT_U8
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:140
Opaque data information usually continuous.
Definition: avutil.h:197
int width
Video only.
Definition: avcodec.h:4019
int av_packet_unpack_dictionary(const uint8_t *data, int size, AVDictionary **dict)
Unpack a dictionary from side_data.
Definition: avpacket.c:490
#define av_assert2(cond)
assert() equivalent, that does lie in speed critical code.
Definition: avassert.h:63
8 bits with AV_PIX_FMT_RGB32 palette
Definition: pixfmt.h:73
AVOptions.
AVCodecParameters * avcodec_parameters_alloc(void)
Allocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0).
Definition: utils.c:4044
int avpriv_set_systematic_pal2(uint32_t pal[256], enum AVPixelFormat pix_fmt)
Definition: imgutils.c:151
const char * av_color_range_name(enum AVColorRange range)
Definition: pixdesc.c:2576
void * thread_ctx
Definition: internal.h:138
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
static int setup_hwaccel(AVCodecContext *avctx, const enum AVPixelFormat fmt, const char *name)
Definition: utils.c:1045
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Definition: avcodec.h:1608
static AVCodec * first_avcodec
Definition: utils.c:145
This side data contains a 3x3 transformation matrix describing an affine transformation that needs to...
Definition: avcodec.h:1414
int ff_side_data_update_matrix_encoding(AVFrame *frame, enum AVMatrixEncoding matrix_encoding)
Add or update AV_FRAME_DATA_MATRIXENCODING side data.
Definition: utils.c:240
int trailing_padding
Audio only.
Definition: avcodec.h:3537
#define AV_WL8(p, d)
Definition: intreadwrite.h:399
Multithreading support functions.
#define AV_NE(be, le)
Definition: common.h:50
int av_frame_ref(AVFrame *dst, const AVFrame *src)
Set up a new reference to the data described by the source frame.
Definition: frame.c:374
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:264
#define FF_CODEC_PROPERTY_LOSSLESS
Definition: avcodec.h:3492
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:268
#define LIBAVCODEC_VERSION_INT
Definition: version.h:34
int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame)
Identical in function to av_frame_make_writable(), except it uses ff_get_buffer() to allocate the buf...
Definition: utils.c:977
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1774
#define LICENSE_PREFIX
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_RB32
Definition: bytestream.h:87
int avcodec_parameters_to_context(AVCodecContext *codec, const AVCodecParameters *par)
Fill the codec context based on the values from the supplied codec parameters.
Definition: utils.c:4140
static AVFrame * frame
planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition: pixfmt.h:202
AVCPBProperties * ff_add_cpb_side_data(AVCodecContext *avctx)
Add a CPB properties side data to an encoding context.
Definition: utils.c:3998
int planes
Definition: internal.h:99
Public header for CRC hash function implementation.
void * frame_thread_encoder
Definition: internal.h:152
int initial_padding
Audio only.
Definition: avcodec.h:4082