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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;
656  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pic->format);
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 {
702  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
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);
861  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(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_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
1393  avctx->codec->max_lowres);
1394  ret = AVERROR(EINVAL);
1395  goto free_and_end;
1396  }
1397 
1398 #if FF_API_VISMV
1399  if (avctx->debug_mv)
1400  av_log(avctx, AV_LOG_WARNING, "The 'vismv' option is deprecated, "
1401  "see the codecview filter instead.\n");
1402 #endif
1403 
1404  if (av_codec_is_encoder(avctx->codec)) {
1405  int i;
1406 #if FF_API_CODED_FRAME
1408  avctx->coded_frame = av_frame_alloc();
1409  if (!avctx->coded_frame) {
1410  ret = AVERROR(ENOMEM);
1411  goto free_and_end;
1412  }
1414 #endif
1415  if (avctx->codec->sample_fmts) {
1416  for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
1417  if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
1418  break;
1419  if (avctx->channels == 1 &&
1422  avctx->sample_fmt = avctx->codec->sample_fmts[i];
1423  break;
1424  }
1425  }
1426  if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
1427  char buf[128];
1428  snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
1429  av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
1430  (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
1431  ret = AVERROR(EINVAL);
1432  goto free_and_end;
1433  }
1434  }
1435  if (avctx->codec->pix_fmts) {
1436  for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
1437  if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
1438  break;
1439  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
1440  && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
1442  char buf[128];
1443  snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
1444  av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
1445  (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
1446  ret = AVERROR(EINVAL);
1447  goto free_and_end;
1448  }
1449  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
1450  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
1451  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
1452  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
1453  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
1454  avctx->color_range = AVCOL_RANGE_JPEG;
1455  }
1456  if (avctx->codec->supported_samplerates) {
1457  for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
1458  if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
1459  break;
1460  if (avctx->codec->supported_samplerates[i] == 0) {
1461  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1462  avctx->sample_rate);
1463  ret = AVERROR(EINVAL);
1464  goto free_and_end;
1465  }
1466  }
1467  if (avctx->sample_rate < 0) {
1468  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
1469  avctx->sample_rate);
1470  ret = AVERROR(EINVAL);
1471  goto free_and_end;
1472  }
1473  if (avctx->codec->channel_layouts) {
1474  if (!avctx->channel_layout) {
1475  av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
1476  } else {
1477  for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
1478  if (avctx->channel_layout == avctx->codec->channel_layouts[i])
1479  break;
1480  if (avctx->codec->channel_layouts[i] == 0) {
1481  char buf[512];
1482  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1483  av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
1484  ret = AVERROR(EINVAL);
1485  goto free_and_end;
1486  }
1487  }
1488  }
1489  if (avctx->channel_layout && avctx->channels) {
1490  int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1491  if (channels != avctx->channels) {
1492  char buf[512];
1493  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1494  av_log(avctx, AV_LOG_ERROR,
1495  "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
1496  buf, channels, avctx->channels);
1497  ret = AVERROR(EINVAL);
1498  goto free_and_end;
1499  }
1500  } else if (avctx->channel_layout) {
1502  }
1503  if (avctx->channels < 0) {
1504  av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
1505  avctx->channels);
1506  ret = AVERROR(EINVAL);
1507  goto free_and_end;
1508  }
1509  if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
1510  pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
1511  if ( avctx->bits_per_raw_sample < 0
1512  || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
1513  av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
1514  avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
1515  avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
1516  }
1517  if (avctx->width <= 0 || avctx->height <= 0) {
1518  av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
1519  ret = AVERROR(EINVAL);
1520  goto free_and_end;
1521  }
1522  }
1523  if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
1524  && avctx->bit_rate>0 && avctx->bit_rate<1000) {
1525  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);
1526  }
1527 
1528  if (!avctx->rc_initial_buffer_occupancy)
1529  avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3 / 4;
1530 
1531  if (avctx->ticks_per_frame && avctx->time_base.num &&
1532  avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
1533  av_log(avctx, AV_LOG_ERROR,
1534  "ticks_per_frame %d too large for the timebase %d/%d.",
1535  avctx->ticks_per_frame,
1536  avctx->time_base.num,
1537  avctx->time_base.den);
1538  goto free_and_end;
1539  }
1540 
1541  if (avctx->hw_frames_ctx) {
1542  AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
1543  if (frames_ctx->format != avctx->pix_fmt) {
1544  av_log(avctx, AV_LOG_ERROR,
1545  "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
1546  ret = AVERROR(EINVAL);
1547  goto free_and_end;
1548  }
1549  }
1550  }
1551 
1553  avctx->pts_correction_num_faulty_dts = 0;
1554  avctx->pts_correction_last_pts =
1555  avctx->pts_correction_last_dts = INT64_MIN;
1556 
1557  if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
1559  av_log(avctx, AV_LOG_WARNING,
1560  "gray decoding requested but not enabled at configuration time\n");
1561 
1562  if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
1563  || avctx->internal->frame_thread_encoder)) {
1564  ret = avctx->codec->init(avctx);
1565  if (ret < 0) {
1566  goto free_and_end;
1567  }
1568  }
1569 
1570  ret=0;
1571 
1572 #if FF_API_AUDIOENC_DELAY
1573  if (av_codec_is_encoder(avctx->codec))
1574  avctx->delay = avctx->initial_padding;
1575 #endif
1576 
1577  if (av_codec_is_decoder(avctx->codec)) {
1578  if (!avctx->bit_rate)
1579  avctx->bit_rate = get_bit_rate(avctx);
1580  /* validate channel layout from the decoder */
1581  if (avctx->channel_layout) {
1582  int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
1583  if (!avctx->channels)
1584  avctx->channels = channels;
1585  else if (channels != avctx->channels) {
1586  char buf[512];
1587  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
1588  av_log(avctx, AV_LOG_WARNING,
1589  "Channel layout '%s' with %d channels does not match specified number of channels %d: "
1590  "ignoring specified channel layout\n",
1591  buf, channels, avctx->channels);
1592  avctx->channel_layout = 0;
1593  }
1594  }
1595  if (avctx->channels && avctx->channels < 0 ||
1596  avctx->channels > FF_SANE_NB_CHANNELS) {
1597  ret = AVERROR(EINVAL);
1598  goto free_and_end;
1599  }
1600  if (avctx->sub_charenc) {
1601  if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
1602  av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
1603  "supported with subtitles codecs\n");
1604  ret = AVERROR(EINVAL);
1605  goto free_and_end;
1606  } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
1607  av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
1608  "subtitles character encoding will be ignored\n",
1609  avctx->codec_descriptor->name);
1611  } else {
1612  /* input character encoding is set for a text based subtitle
1613  * codec at this point */
1616 
1618 #if CONFIG_ICONV
1619  iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1620  if (cd == (iconv_t)-1) {
1621  ret = AVERROR(errno);
1622  av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1623  "with input character encoding \"%s\"\n", avctx->sub_charenc);
1624  goto free_and_end;
1625  }
1626  iconv_close(cd);
1627 #else
1628  av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1629  "conversion needs a libavcodec built with iconv support "
1630  "for this codec\n");
1631  ret = AVERROR(ENOSYS);
1632  goto free_and_end;
1633 #endif
1634  }
1635  }
1636  }
1637 
1638 #if FF_API_AVCTX_TIMEBASE
1639  if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1640  avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1641 #endif
1642  }
1643  if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1644  av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1645  }
1646 
1647 end:
1648  ff_unlock_avcodec(codec);
1649  if (options) {
1651  *options = tmp;
1652  }
1653 
1654  return ret;
1655 free_and_end:
1656  if (avctx->codec &&
1657  (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP))
1658  avctx->codec->close(avctx);
1659 
1660  if (codec->priv_class && codec->priv_data_size)
1661  av_opt_free(avctx->priv_data);
1662  av_opt_free(avctx);
1663 
1664 #if FF_API_CODED_FRAME
1666  av_frame_free(&avctx->coded_frame);
1668 #endif
1669 
1670  av_dict_free(&tmp);
1671  av_freep(&avctx->priv_data);
1672  if (avctx->internal) {
1673  av_packet_free(&avctx->internal->buffer_pkt);
1674  av_frame_free(&avctx->internal->buffer_frame);
1675  av_frame_free(&avctx->internal->to_free);
1676  av_freep(&avctx->internal->pool);
1677  }
1678  av_freep(&avctx->internal);
1679  avctx->codec = NULL;
1680  goto end;
1681 }
1682 
1683 int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
1684 {
1685  if (avpkt->size < 0) {
1686  av_log(avctx, AV_LOG_ERROR, "Invalid negative user packet size %d\n", avpkt->size);
1687  return AVERROR(EINVAL);
1688  }
1690  av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n",
1691  size, INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE);
1692  return AVERROR(EINVAL);
1693  }
1694 
1695  if (avctx && 2*min_size < size) { // FIXME The factor needs to be finetuned
1696  av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer);
1697  if (!avpkt->data || avpkt->size < size) {
1699  avpkt->data = avctx->internal->byte_buffer;
1700  avpkt->size = avctx->internal->byte_buffer_size;
1701  }
1702  }
1703 
1704  if (avpkt->data) {
1705  AVBufferRef *buf = avpkt->buf;
1706 
1707  if (avpkt->size < size) {
1708  av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %"PRId64")\n", avpkt->size, size);
1709  return AVERROR(EINVAL);
1710  }
1711 
1712  av_init_packet(avpkt);
1713  avpkt->buf = buf;
1714  avpkt->size = size;
1715  return 0;
1716  } else {
1717  int ret = av_new_packet(avpkt, size);
1718  if (ret < 0)
1719  av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size);
1720  return ret;
1721  }
1722 }
1723 
1725 {
1726  return ff_alloc_packet2(NULL, avpkt, size, 0);
1727 }
1728 
1729 /**
1730  * Pad last frame with silence.
1731  */
1732 static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
1733 {
1734  AVFrame *frame = NULL;
1735  int ret;
1736 
1737  if (!(frame = av_frame_alloc()))
1738  return AVERROR(ENOMEM);
1739 
1740  frame->format = src->format;
1741  frame->channel_layout = src->channel_layout;
1743  frame->nb_samples = s->frame_size;
1744  ret = av_frame_get_buffer(frame, 32);
1745  if (ret < 0)
1746  goto fail;
1747 
1748  ret = av_frame_copy_props(frame, src);
1749  if (ret < 0)
1750  goto fail;
1751 
1752  if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
1753  src->nb_samples, s->channels, s->sample_fmt)) < 0)
1754  goto fail;
1755  if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
1756  frame->nb_samples - src->nb_samples,
1757  s->channels, s->sample_fmt)) < 0)
1758  goto fail;
1759 
1760  *dst = frame;
1761 
1762  return 0;
1763 
1764 fail:
1765  av_frame_free(&frame);
1766  return ret;
1767 }
1768 
1769 int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
1770  AVPacket *avpkt,
1771  const AVFrame *frame,
1772  int *got_packet_ptr)
1773 {
1774  AVFrame *extended_frame = NULL;
1775  AVFrame *padded_frame = NULL;
1776  int ret;
1777  AVPacket user_pkt = *avpkt;
1778  int needs_realloc = !user_pkt.data;
1779 
1780  *got_packet_ptr = 0;
1781 
1782  if (!avctx->codec->encode2) {
1783  av_log(avctx, AV_LOG_ERROR, "This encoder requires using the avcodec_send_frame() API.\n");
1784  return AVERROR(ENOSYS);
1785  }
1786 
1787  if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) {
1788  av_packet_unref(avpkt);
1789  av_init_packet(avpkt);
1790  return 0;
1791  }
1792 
1793  /* ensure that extended_data is properly set */
1794  if (frame && !frame->extended_data) {
1795  if (av_sample_fmt_is_planar(avctx->sample_fmt) &&
1796  avctx->channels > AV_NUM_DATA_POINTERS) {
1797  av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, "
1798  "with more than %d channels, but extended_data is not set.\n",
1800  return AVERROR(EINVAL);
1801  }
1802  av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n");
1803 
1804  extended_frame = av_frame_alloc();
1805  if (!extended_frame)
1806  return AVERROR(ENOMEM);
1807 
1808  memcpy(extended_frame, frame, sizeof(AVFrame));
1809  extended_frame->extended_data = extended_frame->data;
1810  frame = extended_frame;
1811  }
1812 
1813  /* extract audio service type metadata */
1814  if (frame) {
1816  if (sd && sd->size >= sizeof(enum AVAudioServiceType))
1817  avctx->audio_service_type = *(enum AVAudioServiceType*)sd->data;
1818  }
1819 
1820  /* check for valid frame size */
1821  if (frame) {
1823  if (frame->nb_samples > avctx->frame_size) {
1824  av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n");
1825  ret = AVERROR(EINVAL);
1826  goto end;
1827  }
1828  } else if (!(avctx->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)) {
1829  if (frame->nb_samples < avctx->frame_size &&
1830  !avctx->internal->last_audio_frame) {
1831  ret = pad_last_frame(avctx, &padded_frame, frame);
1832  if (ret < 0)
1833  goto end;
1834 
1835  frame = padded_frame;
1836  avctx->internal->last_audio_frame = 1;
1837  }
1838 
1839  if (frame->nb_samples != avctx->frame_size) {
1840  av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size);
1841  ret = AVERROR(EINVAL);
1842  goto end;
1843  }
1844  }
1845  }
1846 
1847  av_assert0(avctx->codec->encode2);
1848 
1849  ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1850  if (!ret) {
1851  if (*got_packet_ptr) {
1852  if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) {
1853  if (avpkt->pts == AV_NOPTS_VALUE)
1854  avpkt->pts = frame->pts;
1855  if (!avpkt->duration)
1856  avpkt->duration = ff_samples_to_time_base(avctx,
1857  frame->nb_samples);
1858  }
1859  avpkt->dts = avpkt->pts;
1860  } else {
1861  avpkt->size = 0;
1862  }
1863  }
1864  if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1865  needs_realloc = 0;
1866  if (user_pkt.data) {
1867  if (user_pkt.size >= avpkt->size) {
1868  memcpy(user_pkt.data, avpkt->data, avpkt->size);
1869  } else {
1870  av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1871  avpkt->size = user_pkt.size;
1872  ret = -1;
1873  }
1874  avpkt->buf = user_pkt.buf;
1875  avpkt->data = user_pkt.data;
1876  } else {
1877  if (av_dup_packet(avpkt) < 0) {
1878  ret = AVERROR(ENOMEM);
1879  }
1880  }
1881  }
1882 
1883  if (!ret) {
1884  if (needs_realloc && avpkt->data) {
1885  ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
1886  if (ret >= 0)
1887  avpkt->data = avpkt->buf->data;
1888  }
1889 
1890  avctx->frame_number++;
1891  }
1892 
1893  if (ret < 0 || !*got_packet_ptr) {
1894  av_packet_unref(avpkt);
1895  av_init_packet(avpkt);
1896  goto end;
1897  }
1898 
1899  /* NOTE: if we add any audio encoders which output non-keyframe packets,
1900  * this needs to be moved to the encoders, but for now we can do it
1901  * here to simplify things */
1902  avpkt->flags |= AV_PKT_FLAG_KEY;
1903 
1904 end:
1905  av_frame_free(&padded_frame);
1906  av_free(extended_frame);
1907 
1908 #if FF_API_AUDIOENC_DELAY
1909  avctx->delay = avctx->initial_padding;
1910 #endif
1911 
1912  return ret;
1913 }
1914 
1915 int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
1916  AVPacket *avpkt,
1917  const AVFrame *frame,
1918  int *got_packet_ptr)
1919 {
1920  int ret;
1921  AVPacket user_pkt = *avpkt;
1922  int needs_realloc = !user_pkt.data;
1923 
1924  *got_packet_ptr = 0;
1925 
1926  if (!avctx->codec->encode2) {
1927  av_log(avctx, AV_LOG_ERROR, "This encoder requires using the avcodec_send_frame() API.\n");
1928  return AVERROR(ENOSYS);
1929  }
1930 
1931  if(CONFIG_FRAME_THREAD_ENCODER &&
1933  return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr);
1934 
1935  if ((avctx->flags&AV_CODEC_FLAG_PASS1) && avctx->stats_out)
1936  avctx->stats_out[0] = '\0';
1937 
1938  if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) {
1939  av_packet_unref(avpkt);
1940  av_init_packet(avpkt);
1941  avpkt->size = 0;
1942  return 0;
1943  }
1944 
1945  if (av_image_check_size(avctx->width, avctx->height, 0, avctx))
1946  return AVERROR(EINVAL);
1947 
1948  if (frame && frame->format == AV_PIX_FMT_NONE)
1949  av_log(avctx, AV_LOG_WARNING, "AVFrame.format is not set\n");
1950  if (frame && (frame->width == 0 || frame->height == 0))
1951  av_log(avctx, AV_LOG_WARNING, "AVFrame.width or height is not set\n");
1952 
1953  av_assert0(avctx->codec->encode2);
1954 
1955  ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1956  av_assert0(ret <= 0);
1957 
1958  if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1959  needs_realloc = 0;
1960  if (user_pkt.data) {
1961  if (user_pkt.size >= avpkt->size) {
1962  memcpy(user_pkt.data, avpkt->data, avpkt->size);
1963  } else {
1964  av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1965  avpkt->size = user_pkt.size;
1966  ret = -1;
1967  }
1968  avpkt->buf = user_pkt.buf;
1969  avpkt->data = user_pkt.data;
1970  } else {
1971  if (av_dup_packet(avpkt) < 0) {
1972  ret = AVERROR(ENOMEM);
1973  }
1974  }
1975  }
1976 
1977  if (!ret) {
1978  if (!*got_packet_ptr)
1979  avpkt->size = 0;
1980  else if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
1981  avpkt->pts = avpkt->dts = frame->pts;
1982 
1983  if (needs_realloc && avpkt->data) {
1984  ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
1985  if (ret >= 0)
1986  avpkt->data = avpkt->buf->data;
1987  }
1988 
1989  avctx->frame_number++;
1990  }
1991 
1992  if (ret < 0 || !*got_packet_ptr)
1993  av_packet_unref(avpkt);
1994 
1995  emms_c();
1996  return ret;
1997 }
1998 
2000  const AVSubtitle *sub)
2001 {
2002  int ret;
2003  if (sub->start_display_time) {
2004  av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
2005  return -1;
2006  }
2007 
2008  ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub);
2009  avctx->frame_number++;
2010  return ret;
2011 }
2012 
2013 /**
2014  * Attempt to guess proper monotonic timestamps for decoded video frames
2015  * which might have incorrect times. Input timestamps may wrap around, in
2016  * which case the output will as well.
2017  *
2018  * @param pts the pts field of the decoded AVPacket, as passed through
2019  * AVFrame.pkt_pts
2020  * @param dts the dts field of the decoded AVPacket
2021  * @return one of the input values, may be AV_NOPTS_VALUE
2022  */
2024  int64_t reordered_pts, int64_t dts)
2025 {
2026  int64_t pts = AV_NOPTS_VALUE;
2027 
2028  if (dts != AV_NOPTS_VALUE) {
2030  ctx->pts_correction_last_dts = dts;
2031  } else if (reordered_pts != AV_NOPTS_VALUE)
2032  ctx->pts_correction_last_dts = reordered_pts;
2033 
2034  if (reordered_pts != AV_NOPTS_VALUE) {
2035  ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
2036  ctx->pts_correction_last_pts = reordered_pts;
2037  } else if(dts != AV_NOPTS_VALUE)
2038  ctx->pts_correction_last_pts = dts;
2039 
2041  && reordered_pts != AV_NOPTS_VALUE)
2042  pts = reordered_pts;
2043  else
2044  pts = dts;
2045 
2046  return pts;
2047 }
2048 
2049 static int apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
2050 {
2051  int size = 0, ret;
2052  const uint8_t *data;
2053  uint32_t flags;
2054  int64_t val;
2055 
2056  data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
2057  if (!data)
2058  return 0;
2059 
2060  if (!(avctx->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE)) {
2061  av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter "
2062  "changes, but PARAM_CHANGE side data was sent to it.\n");
2063  ret = AVERROR(EINVAL);
2064  goto fail2;
2065  }
2066 
2067  if (size < 4)
2068  goto fail;
2069 
2070  flags = bytestream_get_le32(&data);
2071  size -= 4;
2072 
2074  if (size < 4)
2075  goto fail;
2076  val = bytestream_get_le32(&data);
2077  if (val <= 0 || val > INT_MAX) {
2078  av_log(avctx, AV_LOG_ERROR, "Invalid channel count");
2079  ret = AVERROR_INVALIDDATA;
2080  goto fail2;
2081  }
2082  avctx->channels = val;
2083  size -= 4;
2084  }
2086  if (size < 8)
2087  goto fail;
2088  avctx->channel_layout = bytestream_get_le64(&data);
2089  size -= 8;
2090  }
2092  if (size < 4)
2093  goto fail;
2094  val = bytestream_get_le32(&data);
2095  if (val <= 0 || val > INT_MAX) {
2096  av_log(avctx, AV_LOG_ERROR, "Invalid sample rate");
2097  ret = AVERROR_INVALIDDATA;
2098  goto fail2;
2099  }
2100  avctx->sample_rate = val;
2101  size -= 4;
2102  }
2104  if (size < 8)
2105  goto fail;
2106  avctx->width = bytestream_get_le32(&data);
2107  avctx->height = bytestream_get_le32(&data);
2108  size -= 8;
2109  ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
2110  if (ret < 0)
2111  goto fail2;
2112  }
2113 
2114  return 0;
2115 fail:
2116  av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n");
2117  ret = AVERROR_INVALIDDATA;
2118 fail2:
2119  if (ret < 0) {
2120  av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
2121  if (avctx->err_recognition & AV_EF_EXPLODE)
2122  return ret;
2123  }
2124  return 0;
2125 }
2126 
2128 {
2129  int ret;
2130 
2131  /* move the original frame to our backup */
2132  av_frame_unref(avci->to_free);
2133  av_frame_move_ref(avci->to_free, frame);
2134 
2135  /* now copy everything except the AVBufferRefs back
2136  * note that we make a COPY of the side data, so calling av_frame_free() on
2137  * the caller's frame will work properly */
2138  ret = av_frame_copy_props(frame, avci->to_free);
2139  if (ret < 0)
2140  return ret;
2141 
2142  memcpy(frame->data, avci->to_free->data, sizeof(frame->data));
2143  memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize));
2144  if (avci->to_free->extended_data != avci->to_free->data) {
2145  int planes = av_frame_get_channels(avci->to_free);
2146  int size = planes * sizeof(*frame->extended_data);
2147 
2148  if (!size) {
2149  av_frame_unref(frame);
2150  return AVERROR_BUG;
2151  }
2152 
2153  frame->extended_data = av_malloc(size);
2154  if (!frame->extended_data) {
2155  av_frame_unref(frame);
2156  return AVERROR(ENOMEM);
2157  }
2158  memcpy(frame->extended_data, avci->to_free->extended_data,
2159  size);
2160  } else
2161  frame->extended_data = frame->data;
2162 
2163  frame->format = avci->to_free->format;
2164  frame->width = avci->to_free->width;
2165  frame->height = avci->to_free->height;
2166  frame->channel_layout = avci->to_free->channel_layout;
2167  frame->nb_samples = avci->to_free->nb_samples;
2169 
2170  return 0;
2171 }
2172 
2173 int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
2174  int *got_picture_ptr,
2175  const AVPacket *avpkt)
2176 {
2177  AVCodecInternal *avci = avctx->internal;
2178  int ret;
2179  // copy to ensure we do not change avpkt
2180  AVPacket tmp = *avpkt;
2181 
2182  if (!avctx->codec)
2183  return AVERROR(EINVAL);
2184  if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) {
2185  av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n");
2186  return AVERROR(EINVAL);
2187  }
2188 
2189  if (!avctx->codec->decode) {
2190  av_log(avctx, AV_LOG_ERROR, "This decoder requires using the avcodec_send_packet() API.\n");
2191  return AVERROR(ENOSYS);
2192  }
2193 
2194  *got_picture_ptr = 0;
2195  if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
2196  return AVERROR(EINVAL);
2197 
2198  avctx->internal->pkt = avpkt;
2199  ret = apply_param_change(avctx, avpkt);
2200  if (ret < 0)
2201  return ret;
2202 
2203  av_frame_unref(picture);
2204 
2205  if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size ||
2206  (avctx->active_thread_type & FF_THREAD_FRAME)) {
2207  int did_split = av_packet_split_side_data(&tmp);
2208  ret = apply_param_change(avctx, &tmp);
2209  if (ret < 0)
2210  goto fail;
2211 
2212  avctx->internal->pkt = &tmp;
2213  if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2214  ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
2215  &tmp);
2216  else {
2217  ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
2218  &tmp);
2220  picture->pkt_dts = avpkt->dts;
2221 
2222  if(!avctx->has_b_frames){
2223  av_frame_set_pkt_pos(picture, avpkt->pos);
2224  }
2225  //FIXME these should be under if(!avctx->has_b_frames)
2226  /* get_buffer is supposed to set frame parameters */
2227  if (!(avctx->codec->capabilities & AV_CODEC_CAP_DR1)) {
2228  if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
2229  if (!picture->width) picture->width = avctx->width;
2230  if (!picture->height) picture->height = avctx->height;
2231  if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt;
2232  }
2233  }
2234 
2235 fail:
2236  emms_c(); //needed to avoid an emms_c() call before every return;
2237 
2238  avctx->internal->pkt = NULL;
2239  if (did_split) {
2241  if(ret == tmp.size)
2242  ret = avpkt->size;
2243  }
2244 
2245  if (*got_picture_ptr) {
2246  if (!avctx->refcounted_frames) {
2247  int err = unrefcount_frame(avci, picture);
2248  if (err < 0)
2249  return err;
2250  }
2251 
2252  avctx->frame_number++;
2254  guess_correct_pts(avctx,
2255  picture->pkt_pts,
2256  picture->pkt_dts));
2257  } else
2258  av_frame_unref(picture);
2259  } else
2260  ret = 0;
2261 
2262  /* many decoders assign whole AVFrames, thus overwriting extended_data;
2263  * make sure it's set correctly */
2264  av_assert0(!picture->extended_data || picture->extended_data == picture->data);
2265 
2266 #if FF_API_AVCTX_TIMEBASE
2267  if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
2268  avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
2269 #endif
2270 
2271  return ret;
2272 }
2273 
2274 int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
2275  AVFrame *frame,
2276  int *got_frame_ptr,
2277  const AVPacket *avpkt)
2278 {
2279  AVCodecInternal *avci = avctx->internal;
2280  int ret = 0;
2281 
2282  *got_frame_ptr = 0;
2283 
2284  if (!avctx->codec->decode) {
2285  av_log(avctx, AV_LOG_ERROR, "This decoder requires using the avcodec_send_packet() API.\n");
2286  return AVERROR(ENOSYS);
2287  }
2288 
2289  if (!avpkt->data && avpkt->size) {
2290  av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2291  return AVERROR(EINVAL);
2292  }
2293  if (!avctx->codec)
2294  return AVERROR(EINVAL);
2295  if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) {
2296  av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n");
2297  return AVERROR(EINVAL);
2298  }
2299 
2300  av_frame_unref(frame);
2301 
2302  if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
2303  uint8_t *side;
2304  int side_size;
2305  uint32_t discard_padding = 0;
2306  uint8_t skip_reason = 0;
2307  uint8_t discard_reason = 0;
2308  // copy to ensure we do not change avpkt
2309  AVPacket tmp = *avpkt;
2310  int did_split = av_packet_split_side_data(&tmp);
2311  ret = apply_param_change(avctx, &tmp);
2312  if (ret < 0)
2313  goto fail;
2314 
2315  avctx->internal->pkt = &tmp;
2316  if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
2317  ret = ff_thread_decode_frame(avctx, frame, got_frame_ptr, &tmp);
2318  else {
2319  ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp);
2320  av_assert0(ret <= tmp.size);
2321  frame->pkt_dts = avpkt->dts;
2322  }
2323  if (ret >= 0 && *got_frame_ptr) {
2324  avctx->frame_number++;
2326  guess_correct_pts(avctx,
2327  frame->pkt_pts,
2328  frame->pkt_dts));
2329  if (frame->format == AV_SAMPLE_FMT_NONE)
2330  frame->format = avctx->sample_fmt;
2331  if (!frame->channel_layout)
2332  frame->channel_layout = avctx->channel_layout;
2333  if (!av_frame_get_channels(frame))
2334  av_frame_set_channels(frame, avctx->channels);
2335  if (!frame->sample_rate)
2336  frame->sample_rate = avctx->sample_rate;
2337  }
2338 
2339  side= av_packet_get_side_data(avctx->internal->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size);
2340  if(side && side_size>=10) {
2341  avctx->internal->skip_samples = AV_RL32(side);
2342  discard_padding = AV_RL32(side + 4);
2343  av_log(avctx, AV_LOG_DEBUG, "skip %d / discard %d samples due to side data\n",
2344  avctx->internal->skip_samples, (int)discard_padding);
2345  skip_reason = AV_RL8(side + 8);
2346  discard_reason = AV_RL8(side + 9);
2347  }
2348  if (avctx->internal->skip_samples && *got_frame_ptr &&
2349  !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
2350  if(frame->nb_samples <= avctx->internal->skip_samples){
2351  *got_frame_ptr = 0;
2352  avctx->internal->skip_samples -= frame->nb_samples;
2353  av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n",
2354  avctx->internal->skip_samples);
2355  } else {
2357  frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format);
2358  if(avctx->pkt_timebase.num && avctx->sample_rate) {
2359  int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples,
2360  (AVRational){1, avctx->sample_rate},
2361  avctx->pkt_timebase);
2362  if(frame->pkt_pts!=AV_NOPTS_VALUE)
2363  frame->pkt_pts += diff_ts;
2364  if(frame->pkt_dts!=AV_NOPTS_VALUE)
2365  frame->pkt_dts += diff_ts;
2366  if (av_frame_get_pkt_duration(frame) >= diff_ts)
2367  av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
2368  } else {
2369  av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
2370  }
2371  av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n",
2372  avctx->internal->skip_samples, frame->nb_samples);
2373  frame->nb_samples -= avctx->internal->skip_samples;
2374  avctx->internal->skip_samples = 0;
2375  }
2376  }
2377 
2378  if (discard_padding > 0 && discard_padding <= frame->nb_samples && *got_frame_ptr &&
2379  !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
2380  if (discard_padding == frame->nb_samples) {
2381  *got_frame_ptr = 0;
2382  } else {
2383  if(avctx->pkt_timebase.num && avctx->sample_rate) {
2384  int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding,
2385  (AVRational){1, avctx->sample_rate},
2386  avctx->pkt_timebase);
2387  av_frame_set_pkt_duration(frame, diff_ts);
2388  } else {
2389  av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n");
2390  }
2391  av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n",
2392  (int)discard_padding, frame->nb_samples);
2393  frame->nb_samples -= discard_padding;
2394  }
2395  }
2396 
2397  if ((avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL) && *got_frame_ptr) {
2399  if (fside) {
2400  AV_WL32(fside->data, avctx->internal->skip_samples);
2401  AV_WL32(fside->data + 4, discard_padding);
2402  AV_WL8(fside->data + 8, skip_reason);
2403  AV_WL8(fside->data + 9, discard_reason);
2404  avctx->internal->skip_samples = 0;
2405  }
2406  }
2407 fail:
2408  avctx->internal->pkt = NULL;
2409  if (did_split) {
2411  if(ret == tmp.size)
2412  ret = avpkt->size;
2413  }
2414 
2415  if (ret >= 0 && *got_frame_ptr) {
2416  if (!avctx->refcounted_frames) {
2417  int err = unrefcount_frame(avci, frame);
2418  if (err < 0)
2419  return err;
2420  }
2421  } else
2423  }
2424 
2425  av_assert0(ret <= avpkt->size);
2426 
2427  return ret;
2428 }
2429 
2430 #define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */
2432  AVPacket *outpkt, const AVPacket *inpkt)
2433 {
2434 #if CONFIG_ICONV
2435  iconv_t cd = (iconv_t)-1;
2436  int ret = 0;
2437  char *inb, *outb;
2438  size_t inl, outl;
2439  AVPacket tmp;
2440 #endif
2441 
2442  if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0)
2443  return 0;
2444 
2445 #if CONFIG_ICONV
2446  cd = iconv_open("UTF-8", avctx->sub_charenc);
2447  av_assert0(cd != (iconv_t)-1);
2448 
2449  inb = inpkt->data;
2450  inl = inpkt->size;
2451 
2452  if (inl >= INT_MAX / UTF8_MAX_BYTES - AV_INPUT_BUFFER_PADDING_SIZE) {
2453  av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n");
2454  ret = AVERROR(ENOMEM);
2455  goto end;
2456  }
2457 
2458  ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES);
2459  if (ret < 0)
2460  goto end;
2461  outpkt->buf = tmp.buf;
2462  outpkt->data = tmp.data;
2463  outpkt->size = tmp.size;
2464  outb = outpkt->data;
2465  outl = outpkt->size;
2466 
2467  if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 ||
2468  iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 ||
2469  outl >= outpkt->size || inl != 0) {
2470  ret = FFMIN(AVERROR(errno), -1);
2471  av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" "
2472  "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc);
2473  av_packet_unref(&tmp);
2474  goto end;
2475  }
2476  outpkt->size -= outl;
2477  memset(outpkt->data + outpkt->size, 0, outl);
2478 
2479 end:
2480  if (cd != (iconv_t)-1)
2481  iconv_close(cd);
2482  return ret;
2483 #else
2484  av_log(avctx, AV_LOG_ERROR, "requesting subtitles recoding without iconv");
2485  return AVERROR(EINVAL);
2486 #endif
2487 }
2488 
2489 static int utf8_check(const uint8_t *str)
2490 {
2491  const uint8_t *byte;
2492  uint32_t codepoint, min;
2493 
2494  while (*str) {
2495  byte = str;
2496  GET_UTF8(codepoint, *(byte++), return 0;);
2497  min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 :
2498  1 << (5 * (byte - str) - 4);
2499  if (codepoint < min || codepoint >= 0x110000 ||
2500  codepoint == 0xFFFE /* BOM */ ||
2501  codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */)
2502  return 0;
2503  str = byte;
2504  }
2505  return 1;
2506 }
2507 
2508 #if FF_API_ASS_TIMING
2509 static void insert_ts(AVBPrint *buf, int ts)
2510 {
2511  if (ts == -1) {
2512  av_bprintf(buf, "9:59:59.99,");
2513  } else {
2514  int h, m, s;
2515 
2516  h = ts/360000; ts -= 360000*h;
2517  m = ts/ 6000; ts -= 6000*m;
2518  s = ts/ 100; ts -= 100*s;
2519  av_bprintf(buf, "%d:%02d:%02d.%02d,", h, m, s, ts);
2520  }
2521 }
2522 
2524 {
2525  int i;
2526  AVBPrint buf;
2527 
2529 
2530  for (i = 0; i < sub->num_rects; i++) {
2531  char *final_dialog;
2532  const char *dialog;
2533  AVSubtitleRect *rect = sub->rects[i];
2534  int ts_start, ts_duration = -1;
2535  long int layer;
2536 
2537  if (rect->type != SUBTITLE_ASS || !strncmp(rect->ass, "Dialogue: ", 10))
2538  continue;
2539 
2540  av_bprint_clear(&buf);
2541 
2542  /* skip ReadOrder */
2543  dialog = strchr(rect->ass, ',');
2544  if (!dialog)
2545  continue;
2546  dialog++;
2547 
2548  /* extract Layer or Marked */
2549  layer = strtol(dialog, (char**)&dialog, 10);
2550  if (*dialog != ',')
2551  continue;
2552  dialog++;
2553 
2554  /* rescale timing to ASS time base (ms) */
2555  ts_start = av_rescale_q(pkt->pts, tb, av_make_q(1, 100));
2556  if (pkt->duration != -1)
2557  ts_duration = av_rescale_q(pkt->duration, tb, av_make_q(1, 100));
2558  sub->end_display_time = FFMAX(sub->end_display_time, 10 * ts_duration);
2559 
2560  /* construct ASS (standalone file form with timestamps) string */
2561  av_bprintf(&buf, "Dialogue: %ld,", layer);
2562  insert_ts(&buf, ts_start);
2563  insert_ts(&buf, ts_duration == -1 ? -1 : ts_start + ts_duration);
2564  av_bprintf(&buf, "%s\r\n", dialog);
2565 
2566  final_dialog = av_strdup(buf.str);
2567  if (!av_bprint_is_complete(&buf) || !final_dialog) {
2568  av_freep(&final_dialog);
2569  av_bprint_finalize(&buf, NULL);
2570  return AVERROR(ENOMEM);
2571  }
2572  av_freep(&rect->ass);
2573  rect->ass = final_dialog;
2574  }
2575 
2576  av_bprint_finalize(&buf, NULL);
2577  return 0;
2578 }
2579 #endif
2580 
2582  int *got_sub_ptr,
2583  AVPacket *avpkt)
2584 {
2585  int i, ret = 0;
2586 
2587  if (!avpkt->data && avpkt->size) {
2588  av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
2589  return AVERROR(EINVAL);
2590  }
2591  if (!avctx->codec)
2592  return AVERROR(EINVAL);
2593  if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) {
2594  av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n");
2595  return AVERROR(EINVAL);
2596  }
2597 
2598  *got_sub_ptr = 0;
2599  get_subtitle_defaults(sub);
2600 
2601  if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size) {
2602  AVPacket pkt_recoded;
2603  AVPacket tmp = *avpkt;
2604  int did_split = av_packet_split_side_data(&tmp);
2605  //apply_param_change(avctx, &tmp);
2606 
2607  if (did_split) {
2608  /* FFMIN() prevents overflow in case the packet wasn't allocated with
2609  * proper padding.
2610  * If the side data is smaller than the buffer padding size, the
2611  * remaining bytes should have already been filled with zeros by the
2612  * original packet allocation anyway. */
2613  memset(tmp.data + tmp.size, 0,
2614  FFMIN(avpkt->size - tmp.size, AV_INPUT_BUFFER_PADDING_SIZE));
2615  }
2616 
2617  pkt_recoded = tmp;
2618  ret = recode_subtitle(avctx, &pkt_recoded, &tmp);
2619  if (ret < 0) {
2620  *got_sub_ptr = 0;
2621  } else {
2622  avctx->internal->pkt = &pkt_recoded;
2623 
2624  if (avctx->pkt_timebase.num && avpkt->pts != AV_NOPTS_VALUE)
2625  sub->pts = av_rescale_q(avpkt->pts,
2626  avctx->pkt_timebase, AV_TIME_BASE_Q);
2627  ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded);
2628  av_assert1((ret >= 0) >= !!*got_sub_ptr &&
2629  !!*got_sub_ptr >= !!sub->num_rects);
2630 
2631 #if FF_API_ASS_TIMING
2633  && *got_sub_ptr && sub->num_rects) {
2634  const AVRational tb = avctx->pkt_timebase.num ? avctx->pkt_timebase
2635  : avctx->time_base;
2636  ret = convert_sub_to_old_ass_form(sub, avpkt, tb);
2637  }
2638 #endif
2639 
2640  if (sub->num_rects && !sub->end_display_time && avpkt->duration &&
2641  avctx->pkt_timebase.num) {
2642  AVRational ms = { 1, 1000 };
2643  sub->end_display_time = av_rescale_q(avpkt->duration,
2644  avctx->pkt_timebase, ms);
2645  }
2646 
2647  for (i = 0; i < sub->num_rects; i++) {
2648  if (sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) {
2649  av_log(avctx, AV_LOG_ERROR,
2650  "Invalid UTF-8 in decoded subtitles text; "
2651  "maybe missing -sub_charenc option\n");
2652  avsubtitle_free(sub);
2653  return AVERROR_INVALIDDATA;
2654  }
2655  }
2656 
2657  if (tmp.data != pkt_recoded.data) { // did we recode?
2658  /* prevent from destroying side data from original packet */
2659  pkt_recoded.side_data = NULL;
2660  pkt_recoded.side_data_elems = 0;
2661 
2662  av_packet_unref(&pkt_recoded);
2663  }
2665  sub->format = 0;
2666  else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB)
2667  sub->format = 1;
2668  avctx->internal->pkt = NULL;
2669  }
2670 
2671  if (did_split) {
2673  if(ret == tmp.size)
2674  ret = avpkt->size;
2675  }
2676 
2677  if (*got_sub_ptr)
2678  avctx->frame_number++;
2679  }
2680 
2681  return ret;
2682 }
2683 
2685 {
2686  int i;
2687 
2688  for (i = 0; i < sub->num_rects; i++) {
2689  av_freep(&sub->rects[i]->data[0]);
2690  av_freep(&sub->rects[i]->data[1]);
2691  av_freep(&sub->rects[i]->data[2]);
2692  av_freep(&sub->rects[i]->data[3]);
2693  av_freep(&sub->rects[i]->text);
2694  av_freep(&sub->rects[i]->ass);
2695  av_freep(&sub->rects[i]);
2696  }
2697 
2698  av_freep(&sub->rects);
2699 
2700  memset(sub, 0, sizeof(AVSubtitle));
2701 }
2702 
2703 static int do_decode(AVCodecContext *avctx, AVPacket *pkt)
2704 {
2705  int got_frame;
2706  int ret;
2707 
2708  av_assert0(!avctx->internal->buffer_frame->buf[0]);
2709 
2710  if (!pkt)
2711  pkt = avctx->internal->buffer_pkt;
2712 
2713  // This is the lesser evil. The field is for compatibility with legacy users
2714  // of the legacy API, and users using the new API should not be forced to
2715  // even know about this field.
2716  avctx->refcounted_frames = 1;
2717 
2718  // Some codecs (at least wma lossless) will crash when feeding drain packets
2719  // after EOF was signaled.
2720  if (avctx->internal->draining_done)
2721  return AVERROR_EOF;
2722 
2723  if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
2724  ret = avcodec_decode_video2(avctx, avctx->internal->buffer_frame,
2725  &got_frame, pkt);
2726  if (ret >= 0)
2727  ret = pkt->size;
2728  } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2729  ret = avcodec_decode_audio4(avctx, avctx->internal->buffer_frame,
2730  &got_frame, pkt);
2731  } else {
2732  ret = AVERROR(EINVAL);
2733  }
2734 
2735  if (ret == AVERROR(EAGAIN))
2736  ret = pkt->size;
2737 
2738  if (ret < 0)
2739  return ret;
2740 
2741  if (avctx->internal->draining && !got_frame)
2742  avctx->internal->draining_done = 1;
2743 
2744  if (ret >= pkt->size) {
2746  } else {
2747  int consumed = ret;
2748 
2749  if (pkt != avctx->internal->buffer_pkt) {
2751  if ((ret = av_packet_ref(avctx->internal->buffer_pkt, pkt)) < 0)
2752  return ret;
2753  }
2754 
2755  avctx->internal->buffer_pkt->data += consumed;
2756  avctx->internal->buffer_pkt->size -= consumed;
2759  }
2760 
2761  if (got_frame)
2762  av_assert0(avctx->internal->buffer_frame->buf[0]);
2763 
2764  return 0;
2765 }
2766 
2767 int attribute_align_arg avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt)
2768 {
2769  int ret;
2770 
2771  if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec))
2772  return AVERROR(EINVAL);
2773 
2774  if (avctx->internal->draining)
2775  return AVERROR_EOF;
2776 
2777  if (!avpkt || !avpkt->size) {
2778  avctx->internal->draining = 1;
2779  avpkt = NULL;
2780 
2781  if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
2782  return 0;
2783  }
2784 
2785  if (avctx->codec->send_packet) {
2786  if (avpkt) {
2787  AVPacket tmp = *avpkt;
2788  int did_split = av_packet_split_side_data(&tmp);
2789  ret = apply_param_change(avctx, &tmp);
2790  if (ret >= 0)
2791  ret = avctx->codec->send_packet(avctx, &tmp);
2792  if (did_split)
2794  return ret;
2795  } else {
2796  return avctx->codec->send_packet(avctx, NULL);
2797  }
2798  }
2799 
2800  // Emulation via old API. Assume avpkt is likely not refcounted, while
2801  // decoder output is always refcounted, and avoid copying.
2802 
2803  if (avctx->internal->buffer_pkt->size || avctx->internal->buffer_frame->buf[0])
2804  return AVERROR(EAGAIN);
2805 
2806  // The goal is decoding the first frame of the packet without using memcpy,
2807  // because the common case is having only 1 frame per packet (especially
2808  // with video, but audio too). In other cases, it can't be avoided, unless
2809  // the user is feeding refcounted packets.
2810  return do_decode(avctx, (AVPacket *)avpkt);
2811 }
2812 
2813 int attribute_align_arg avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
2814 {
2815  int ret;
2816 
2817  av_frame_unref(frame);
2818 
2819  if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec))
2820  return AVERROR(EINVAL);
2821 
2822  if (avctx->codec->receive_frame) {
2823  if (avctx->internal->draining && !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
2824  return AVERROR_EOF;
2825  return avctx->codec->receive_frame(avctx, frame);
2826  }
2827 
2828  // Emulation via old API.
2829 
2830  if (!avctx->internal->buffer_frame->buf[0]) {
2831  if (!avctx->internal->buffer_pkt->size && !avctx->internal->draining)
2832  return AVERROR(EAGAIN);
2833 
2834  while (1) {
2835  if ((ret = do_decode(avctx, avctx->internal->buffer_pkt)) < 0) {
2837  return ret;
2838  }
2839  // Some audio decoders may consume partial data without returning
2840  // a frame (fate-wmapro-2ch). There is no way to make the caller
2841  // call avcodec_receive_frame() again without returning a frame,
2842  // so try to decode more in these cases.
2843  if (avctx->internal->buffer_frame->buf[0] ||
2844  !avctx->internal->buffer_pkt->size)
2845  break;
2846  }
2847  }
2848 
2849  if (!avctx->internal->buffer_frame->buf[0])
2850  return avctx->internal->draining ? AVERROR_EOF : AVERROR(EAGAIN);
2851 
2852  av_frame_move_ref(frame, avctx->internal->buffer_frame);
2853  return 0;
2854 }
2855 
2856 static int do_encode(AVCodecContext *avctx, const AVFrame *frame, int *got_packet)
2857 {
2858  int ret;
2859  *got_packet = 0;
2860 
2862  avctx->internal->buffer_pkt_valid = 0;
2863 
2864  if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
2865  ret = avcodec_encode_video2(avctx, avctx->internal->buffer_pkt,
2866  frame, got_packet);
2867  } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2868  ret = avcodec_encode_audio2(avctx, avctx->internal->buffer_pkt,
2869  frame, got_packet);
2870  } else {
2871  ret = AVERROR(EINVAL);
2872  }
2873 
2874  if (ret >= 0 && *got_packet) {
2875  // Encoders must always return ref-counted buffers.
2876  // Side-data only packets have no data and can be not ref-counted.
2877  av_assert0(!avctx->internal->buffer_pkt->data || avctx->internal->buffer_pkt->buf);
2878  avctx->internal->buffer_pkt_valid = 1;
2879  ret = 0;
2880  } else {
2882  }
2883 
2884  return ret;
2885 }
2886 
2887 int attribute_align_arg avcodec_send_frame(AVCodecContext *avctx, const AVFrame *frame)
2888 {
2889  if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec))
2890  return AVERROR(EINVAL);
2891 
2892  if (avctx->internal->draining)
2893  return AVERROR_EOF;
2894 
2895  if (!frame) {
2896  avctx->internal->draining = 1;
2897 
2898  if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
2899  return 0;
2900  }
2901 
2902  if (avctx->codec->send_frame)
2903  return avctx->codec->send_frame(avctx, frame);
2904 
2905  // Emulation via old API. Do it here instead of avcodec_receive_packet, because:
2906  // 1. if the AVFrame is not refcounted, the copying will be much more
2907  // expensive than copying the packet data
2908  // 2. assume few users use non-refcounted AVPackets, so usually no copy is
2909  // needed
2910 
2911  if (avctx->internal->buffer_pkt_valid)
2912  return AVERROR(EAGAIN);
2913 
2914  return do_encode(avctx, frame, &(int){0});
2915 }
2916 
2917 int attribute_align_arg avcodec_receive_packet(AVCodecContext *avctx, AVPacket *avpkt)
2918 {
2919  av_packet_unref(avpkt);
2920 
2921  if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec))
2922  return AVERROR(EINVAL);
2923 
2924  if (avctx->codec->receive_packet) {
2925  if (avctx->internal->draining && !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
2926  return AVERROR_EOF;
2927  return avctx->codec->receive_packet(avctx, avpkt);
2928  }
2929 
2930  // Emulation via old API.
2931 
2932  if (!avctx->internal->buffer_pkt_valid) {
2933  int got_packet;
2934  int ret;
2935  if (!avctx->internal->draining)
2936  return AVERROR(EAGAIN);
2937  ret = do_encode(avctx, NULL, &got_packet);
2938  if (ret < 0)
2939  return ret;
2940  if (ret >= 0 && !got_packet)
2941  return AVERROR_EOF;
2942  }
2943 
2944  av_packet_move_ref(avpkt, avctx->internal->buffer_pkt);
2945  avctx->internal->buffer_pkt_valid = 0;
2946  return 0;
2947 }
2948 
2950 {
2951  int i;
2952 
2953  if (!avctx)
2954  return 0;
2955 
2956  if (avcodec_is_open(avctx)) {
2957  FramePool *pool = avctx->internal->pool;
2958  if (CONFIG_FRAME_THREAD_ENCODER &&
2959  avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
2961  }
2962  if (HAVE_THREADS && avctx->internal->thread_ctx)
2963  ff_thread_free(avctx);
2964  if (avctx->codec && avctx->codec->close)
2965  avctx->codec->close(avctx);
2966  avctx->internal->byte_buffer_size = 0;
2967  av_freep(&avctx->internal->byte_buffer);
2968  av_frame_free(&avctx->internal->to_free);
2971  for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
2972  av_buffer_pool_uninit(&pool->pools[i]);
2973  av_freep(&avctx->internal->pool);
2974 
2975  if (avctx->hwaccel && avctx->hwaccel->uninit)
2976  avctx->hwaccel->uninit(avctx);
2978 
2979  av_freep(&avctx->internal);
2980  }
2981 
2982  for (i = 0; i < avctx->nb_coded_side_data; i++)
2983  av_freep(&avctx->coded_side_data[i].data);
2984  av_freep(&avctx->coded_side_data);
2985  avctx->nb_coded_side_data = 0;
2986 
2987  av_buffer_unref(&avctx->hw_frames_ctx);
2988 
2989  if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
2990  av_opt_free(avctx->priv_data);
2991  av_opt_free(avctx);
2992  av_freep(&avctx->priv_data);
2993  if (av_codec_is_encoder(avctx->codec)) {
2994  av_freep(&avctx->extradata);
2995 #if FF_API_CODED_FRAME
2997  av_frame_free(&avctx->coded_frame);
2999 #endif
3000  }
3001  avctx->codec = NULL;
3002  avctx->active_thread_type = 0;
3003 
3004  return 0;
3005 }
3006 
3008 {
3009  switch(id){
3010  //This is for future deprecatec codec ids, its empty since
3011  //last major bump but will fill up again over time, please don't remove it
3012  default : return id;
3013  }
3014 }
3015 
3016 static AVCodec *find_encdec(enum AVCodecID id, int encoder)
3017 {
3018  AVCodec *p, *experimental = NULL;
3019  p = first_avcodec;
3020  id= remap_deprecated_codec_id(id);
3021  while (p) {
3022  if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) &&
3023  p->id == id) {
3024  if (p->capabilities & AV_CODEC_CAP_EXPERIMENTAL && !experimental) {
3025  experimental = p;
3026  } else
3027  return p;
3028  }
3029  p = p->next;
3030  }
3031  return experimental;
3032 }
3033 
3035 {
3036  return find_encdec(id, 1);
3037 }
3038 
3040 {
3041  AVCodec *p;
3042  if (!name)
3043  return NULL;
3044  p = first_avcodec;
3045  while (p) {
3046  if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0)
3047  return p;
3048  p = p->next;
3049  }
3050  return NULL;
3051 }
3052 
3054 {
3055  return find_encdec(id, 0);
3056 }
3057 
3059 {
3060  AVCodec *p;
3061  if (!name)
3062  return NULL;
3063  p = first_avcodec;
3064  while (p) {
3065  if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0)
3066  return p;
3067  p = p->next;
3068  }
3069  return NULL;
3070 }
3071 
3072 const char *avcodec_get_name(enum AVCodecID id)
3073 {
3074  const AVCodecDescriptor *cd;
3075  AVCodec *codec;
3076 
3077  if (id == AV_CODEC_ID_NONE)
3078  return "none";
3079  cd = avcodec_descriptor_get(id);
3080  if (cd)
3081  return cd->name;
3082  av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
3083  codec = avcodec_find_decoder(id);
3084  if (codec)
3085  return codec->name;
3086  codec = avcodec_find_encoder(id);
3087  if (codec)
3088  return codec->name;
3089  return "unknown_codec";
3090 }
3091 
3092 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
3093 {
3094  int i, len, ret = 0;
3095 
3096 #define TAG_PRINT(x) \
3097  (((x) >= '0' && (x) <= '9') || \
3098  ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
3099  ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
3100 
3101  for (i = 0; i < 4; i++) {
3102  len = snprintf(buf, buf_size,
3103  TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
3104  buf += len;
3105  buf_size = buf_size > len ? buf_size - len : 0;
3106  ret += len;
3107  codec_tag >>= 8;
3108  }
3109  return ret;
3110 }
3111 
3112 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
3113 {
3114  const char *codec_type;
3115  const char *codec_name;
3116  const char *profile = NULL;
3117  int64_t bitrate;
3118  int new_line = 0;
3119  AVRational display_aspect_ratio;
3120  const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
3121 
3122  if (!buf || buf_size <= 0)
3123  return;
3124  codec_type = av_get_media_type_string(enc->codec_type);
3125  codec_name = avcodec_get_name(enc->codec_id);
3126  profile = avcodec_profile_name(enc->codec_id, enc->profile);
3127 
3128  snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
3129  codec_name);
3130  buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
3131 
3132  if (enc->codec && strcmp(enc->codec->name, codec_name))
3133  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
3134 
3135  if (profile)
3136  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
3137  if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
3139  && enc->refs)
3140  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3141  ", %d reference frame%s",
3142  enc->refs, enc->refs > 1 ? "s" : "");
3143 
3144  if (enc->codec_tag) {
3145  char tag_buf[32];
3146  av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
3147  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3148  " (%s / 0x%04X)", tag_buf, enc->codec_tag);
3149  }
3150 
3151  switch (enc->codec_type) {
3152  case AVMEDIA_TYPE_VIDEO:
3153  {
3154  char detail[256] = "(";
3155 
3156  av_strlcat(buf, separator, buf_size);
3157 
3158  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3159  "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
3161  if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
3163  av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
3165  av_strlcatf(detail, sizeof(detail), "%s, ",
3167 
3168  if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
3170  enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
3171  if (enc->colorspace != (int)enc->color_primaries ||
3172  enc->colorspace != (int)enc->color_trc) {
3173  new_line = 1;
3174  av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
3178  } else
3179  av_strlcatf(detail, sizeof(detail), "%s, ",
3181  }
3182 
3183  if (av_log_get_level() >= AV_LOG_DEBUG &&
3185  av_strlcatf(detail, sizeof(detail), "%s, ",
3187 
3188  if (strlen(detail) > 1) {
3189  detail[strlen(detail) - 2] = 0;
3190  av_strlcatf(buf, buf_size, "%s)", detail);
3191  }
3192  }
3193 
3194  if (enc->width) {
3195  av_strlcat(buf, new_line ? separator : ", ", buf_size);
3196 
3197  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3198  "%dx%d",
3199  enc->width, enc->height);
3200 
3201  if (av_log_get_level() >= AV_LOG_VERBOSE &&
3202  (enc->width != enc->coded_width ||
3203  enc->height != enc->coded_height))
3204  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3205  " (%dx%d)", enc->coded_width, enc->coded_height);
3206 
3207  if (enc->sample_aspect_ratio.num) {
3208  av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
3209  enc->width * (int64_t)enc->sample_aspect_ratio.num,
3210  enc->height * (int64_t)enc->sample_aspect_ratio.den,
3211  1024 * 1024);
3212  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3213  " [SAR %d:%d DAR %d:%d]",
3215  display_aspect_ratio.num, display_aspect_ratio.den);
3216  }
3217  if (av_log_get_level() >= AV_LOG_DEBUG) {
3218  int g = av_gcd(enc->time_base.num, enc->time_base.den);
3219  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3220  ", %d/%d",
3221  enc->time_base.num / g, enc->time_base.den / g);
3222  }
3223  }
3224  if (encode) {
3225  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3226  ", q=%d-%d", enc->qmin, enc->qmax);
3227  } else {
3229  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3230  ", Closed Captions");
3232  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3233  ", lossless");
3234  }
3235  break;
3236  case AVMEDIA_TYPE_AUDIO:
3237  av_strlcat(buf, separator, buf_size);
3238 
3239  if (enc->sample_rate) {
3240  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3241  "%d Hz, ", enc->sample_rate);
3242  }
3243  av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
3244  if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
3245  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3246  ", %s", av_get_sample_fmt_name(enc->sample_fmt));
3247  }
3248  if ( enc->bits_per_raw_sample > 0
3250  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3251  " (%d bit)", enc->bits_per_raw_sample);
3252  break;
3253  case AVMEDIA_TYPE_DATA:
3254  if (av_log_get_level() >= AV_LOG_DEBUG) {
3255  int g = av_gcd(enc->time_base.num, enc->time_base.den);
3256  if (g)
3257  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3258  ", %d/%d",
3259  enc->time_base.num / g, enc->time_base.den / g);
3260  }
3261  break;
3262  case AVMEDIA_TYPE_SUBTITLE:
3263  if (enc->width)
3264  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3265  ", %dx%d", enc->width, enc->height);
3266  break;
3267  default:
3268  return;
3269  }
3270  if (encode) {
3271  if (enc->flags & AV_CODEC_FLAG_PASS1)
3272  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3273  ", pass 1");
3274  if (enc->flags & AV_CODEC_FLAG_PASS2)
3275  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3276  ", pass 2");
3277  }
3278  bitrate = get_bit_rate(enc);
3279  if (bitrate != 0) {
3280  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3281  ", %"PRId64" kb/s", bitrate / 1000);
3282  } else if (enc->rc_max_rate > 0) {
3283  snprintf(buf + strlen(buf), buf_size - strlen(buf),
3284  ", max. %"PRId64" kb/s", (int64_t)enc->rc_max_rate / 1000);
3285  }
3286 }
3287 
3288 const char *av_get_profile_name(const AVCodec *codec, int profile)
3289 {
3290  const AVProfile *p;
3291  if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
3292  return NULL;
3293 
3294  for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
3295  if (p->profile == profile)
3296  return p->name;
3297 
3298  return NULL;
3299 }
3300 
3302 {
3303  const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
3304  const AVProfile *p;
3305 
3306  if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
3307  return NULL;
3308 
3309  for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
3310  if (p->profile == profile)
3311  return p->name;
3312 
3313  return NULL;
3314 }
3315 
3316 unsigned avcodec_version(void)
3317 {
3318 // av_assert0(AV_CODEC_ID_V410==164);
3321 // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
3322  av_assert0(AV_CODEC_ID_SRT==94216);
3324 
3325  return LIBAVCODEC_VERSION_INT;
3326 }
3327 
3328 const char *avcodec_configuration(void)
3329 {
3330  return FFMPEG_CONFIGURATION;
3331 }
3332 
3333 const char *avcodec_license(void)
3334 {
3335 #define LICENSE_PREFIX "libavcodec license: "
3336  return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
3337 }
3338 
3340 {
3341  avctx->internal->draining = 0;
3342  avctx->internal->draining_done = 0;
3345  avctx->internal->buffer_pkt_valid = 0;
3346 
3347  if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
3348  ff_thread_flush(avctx);
3349  else if (avctx->codec->flush)
3350  avctx->codec->flush(avctx);
3351 
3352  avctx->pts_correction_last_pts =
3353  avctx->pts_correction_last_dts = INT64_MIN;
3354 
3355  if (!avctx->refcounted_frames)
3356  av_frame_unref(avctx->internal->to_free);
3357 }
3358 
3360 {
3361  switch (codec_id) {
3362  case AV_CODEC_ID_8SVX_EXP:
3363  case AV_CODEC_ID_8SVX_FIB:
3364  case AV_CODEC_ID_ADPCM_CT:
3372  return 4;
3373  case AV_CODEC_ID_DSD_LSBF:
3374  case AV_CODEC_ID_DSD_MSBF:
3377  case AV_CODEC_ID_PCM_ALAW:
3378  case AV_CODEC_ID_PCM_MULAW:
3379  case AV_CODEC_ID_PCM_S8:
3381  case AV_CODEC_ID_PCM_U8:
3382  case AV_CODEC_ID_PCM_ZORK:
3383  case AV_CODEC_ID_SDX2_DPCM:
3384  return 8;
3385  case AV_CODEC_ID_PCM_S16BE:
3387  case AV_CODEC_ID_PCM_S16LE:
3389  case AV_CODEC_ID_PCM_U16BE:
3390  case AV_CODEC_ID_PCM_U16LE:
3391  return 16;
3393  case AV_CODEC_ID_PCM_S24BE:
3394  case AV_CODEC_ID_PCM_S24LE:
3396  case AV_CODEC_ID_PCM_U24BE:
3397  case AV_CODEC_ID_PCM_U24LE:
3398  return 24;
3399  case AV_CODEC_ID_PCM_S32BE:
3400  case AV_CODEC_ID_PCM_S32LE:
3402  case AV_CODEC_ID_PCM_U32BE:
3403  case AV_CODEC_ID_PCM_U32LE:
3404  case AV_CODEC_ID_PCM_F32BE:
3405  case AV_CODEC_ID_PCM_F32LE:
3406  return 32;
3407  case AV_CODEC_ID_PCM_F64BE:
3408  case AV_CODEC_ID_PCM_F64LE:
3409  return 64;
3410  default:
3411  return 0;
3412  }
3413 }
3414 
3416 {
3417  static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
3428  };
3429  if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
3430  return AV_CODEC_ID_NONE;
3431  if (be < 0 || be > 1)
3432  be = AV_NE(1, 0);
3433  return map[fmt][be];
3434 }
3435 
3437 {
3438  switch (codec_id) {
3440  return 2;
3442  return 3;
3446  case AV_CODEC_ID_ADPCM_SWF:
3447  case AV_CODEC_ID_ADPCM_MS:
3448  return 4;
3449  default:
3450  return av_get_exact_bits_per_sample(codec_id);
3451  }
3452 }
3453 
3454 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
3455  uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
3456  uint8_t * extradata, int frame_size, int frame_bytes)
3457 {
3459  int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
3460 
3461  /* codecs with an exact constant bits per sample */
3462  if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
3463  return (frame_bytes * 8LL) / (bps * ch);
3464  bps = bits_per_coded_sample;
3465 
3466  /* codecs with a fixed packet duration */
3467  switch (id) {
3468  case AV_CODEC_ID_ADPCM_ADX: return 32;
3469  case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
3470  case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
3471  case AV_CODEC_ID_AMR_NB:
3472  case AV_CODEC_ID_EVRC:
3473  case AV_CODEC_ID_GSM:
3474  case AV_CODEC_ID_QCELP:
3475  case AV_CODEC_ID_RA_288: return 160;
3476  case AV_CODEC_ID_AMR_WB:
3477  case AV_CODEC_ID_GSM_MS: return 320;
3478  case AV_CODEC_ID_MP1: return 384;
3479  case AV_CODEC_ID_ATRAC1: return 512;
3480  case AV_CODEC_ID_ATRAC3: return 1024 * framecount;
3481  case AV_CODEC_ID_ATRAC3P: return 2048;
3482  case AV_CODEC_ID_MP2:
3483  case AV_CODEC_ID_MUSEPACK7: return 1152;
3484  case AV_CODEC_ID_AC3: return 1536;
3485  }
3486 
3487  if (sr > 0) {
3488  /* calc from sample rate */
3489  if (id == AV_CODEC_ID_TTA)
3490  return 256 * sr / 245;
3491 
3492  if (ch > 0) {
3493  /* calc from sample rate and channels */
3494  if (id == AV_CODEC_ID_BINKAUDIO_DCT)
3495  return (480 << (sr / 22050)) / ch;
3496  }
3497  }
3498 
3499  if (ba > 0) {
3500  /* calc from block_align */
3501  if (id == AV_CODEC_ID_SIPR) {
3502  switch (ba) {
3503  case 20: return 160;
3504  case 19: return 144;
3505  case 29: return 288;
3506  case 37: return 480;
3507  }
3508  } else if (id == AV_CODEC_ID_ILBC) {
3509  switch (ba) {
3510  case 38: return 160;
3511  case 50: return 240;
3512  }
3513  }
3514  }
3515 
3516  if (frame_bytes > 0) {
3517  /* calc from frame_bytes only */
3518  if (id == AV_CODEC_ID_TRUESPEECH)
3519  return 240 * (frame_bytes / 32);
3520  if (id == AV_CODEC_ID_NELLYMOSER)
3521  return 256 * (frame_bytes / 64);
3522  if (id == AV_CODEC_ID_RA_144)
3523  return 160 * (frame_bytes / 20);
3524  if (id == AV_CODEC_ID_G723_1)
3525  return 240 * (frame_bytes / 24);
3526 
3527  if (bps > 0) {
3528  /* calc from frame_bytes and bits_per_coded_sample */
3529  if (id == AV_CODEC_ID_ADPCM_G726)
3530  return frame_bytes * 8 / bps;
3531  }
3532 
3533  if (ch > 0 && ch < INT_MAX/16) {
3534  /* calc from frame_bytes and channels */
3535  switch (id) {
3536  case AV_CODEC_ID_ADPCM_AFC:
3537  return frame_bytes / (9 * ch) * 16;
3538  case AV_CODEC_ID_ADPCM_PSX:
3539  case AV_CODEC_ID_ADPCM_DTK:
3540  return frame_bytes / (16 * ch) * 28;
3541  case AV_CODEC_ID_ADPCM_4XM:
3544  return (frame_bytes - 4 * ch) * 2 / ch;
3546  return (frame_bytes - 4) * 2 / ch;
3548  return (frame_bytes - 8) * 2 / ch;
3549  case AV_CODEC_ID_ADPCM_THP:
3551  if (extradata)
3552  return frame_bytes * 14 / (8 * ch);
3553  break;
3554  case AV_CODEC_ID_ADPCM_XA:
3555  return (frame_bytes / 128) * 224 / ch;
3557  return (frame_bytes - 6 - ch) / ch;
3558  case AV_CODEC_ID_ROQ_DPCM:
3559  return (frame_bytes - 8) / ch;
3560  case AV_CODEC_ID_XAN_DPCM:
3561  return (frame_bytes - 2 * ch) / ch;
3562  case AV_CODEC_ID_MACE3:
3563  return 3 * frame_bytes / ch;
3564  case AV_CODEC_ID_MACE6:
3565  return 6 * frame_bytes / ch;
3566  case AV_CODEC_ID_PCM_LXF:
3567  return 2 * (frame_bytes / (5 * ch));
3568  case AV_CODEC_ID_IAC:
3569  case AV_CODEC_ID_IMC:
3570  return 4 * frame_bytes / ch;
3571  }
3572 
3573  if (tag) {
3574  /* calc from frame_bytes, channels, and codec_tag */
3575  if (id == AV_CODEC_ID_SOL_DPCM) {
3576  if (tag == 3)
3577  return frame_bytes / ch;
3578  else
3579  return frame_bytes * 2 / ch;
3580  }
3581  }
3582 
3583  if (ba > 0) {
3584  /* calc from frame_bytes, channels, and block_align */
3585  int blocks = frame_bytes / ba;
3586  switch (id) {
3588  if (bps < 2 || bps > 5)
3589  return 0;
3590  return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
3592  return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
3594  return blocks * (1 + (ba - 4 * ch) * 2 / ch);
3596  return blocks * ((ba - 4 * ch) * 2 / ch);
3597  case AV_CODEC_ID_ADPCM_MS:
3598  return blocks * (2 + (ba - 7 * ch) * 2 / ch);
3599  }
3600  }
3601 
3602  if (bps > 0) {
3603  /* calc from frame_bytes, channels, and bits_per_coded_sample */
3604  switch (id) {
3605  case AV_CODEC_ID_PCM_DVD:
3606  if(bps<4)
3607  return 0;
3608  return 2 * (frame_bytes / ((bps * 2 / 8) * ch));
3610  if(bps<4)
3611  return 0;
3612  return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8);
3613  case AV_CODEC_ID_S302M:
3614  return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
3615  }
3616  }
3617  }
3618  }
3619 
3620  /* Fall back on using frame_size */
3621  if (frame_size > 1 && frame_bytes)
3622  return frame_size;
3623 
3624  //For WMA we currently have no other means to calculate duration thus we
3625  //do it here by assuming CBR, which is true for all known cases.
3626  if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
3627  if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
3628  return (frame_bytes * 8LL * sr) / bitrate;
3629  }
3630 
3631  return 0;
3632 }
3633 
3634 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
3635 {
3636  return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
3637  avctx->channels, avctx->block_align,
3638  avctx->codec_tag, avctx->bits_per_coded_sample,
3639  avctx->bit_rate, avctx->extradata, avctx->frame_size,
3640  frame_bytes);
3641 }
3642 
3644 {
3645  return get_audio_frame_duration(par->codec_id, par->sample_rate,
3646  par->channels, par->block_align,
3647  par->codec_tag, par->bits_per_coded_sample,
3648  par->bit_rate, par->extradata, par->frame_size,
3649  frame_bytes);
3650 }
3651 
3652 #if !HAVE_THREADS
3654 {
3655  return -1;
3656 }
3657 
3658 #endif
3659 
3660 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
3661 {
3662  unsigned int n = 0;
3663 
3664  while (v >= 0xff) {
3665  *s++ = 0xff;
3666  v -= 0xff;
3667  n++;
3668  }
3669  *s = v;
3670  n++;
3671  return n;
3672 }
3673 
3674 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
3675 {
3676  int i;
3677  for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
3678  return i;
3679 }
3680 
3681 #if FF_API_MISSING_SAMPLE
3683 void av_log_missing_feature(void *avc, const char *feature, int want_sample)
3684 {
3685  av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your FFmpeg "
3686  "version to the newest one from Git. If the problem still "
3687  "occurs, it means that your file has a feature which has not "
3688  "been implemented.\n", feature);
3689  if(want_sample)
3691 }
3692 
3693 void av_log_ask_for_sample(void *avc, const char *msg, ...)
3694 {
3695  va_list argument_list;
3696 
3697  va_start(argument_list, msg);
3698 
3699  if (msg)
3700  av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
3701  av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
3702  "of this file to ftp://upload.ffmpeg.org/incoming/ "
3703  "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n");
3704 
3705  va_end(argument_list);
3706 }
3708 #endif /* FF_API_MISSING_SAMPLE */
3709 
3712 
3714 {
3715  AVHWAccel **p = last_hwaccel;
3716  hwaccel->next = NULL;
3717  while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, hwaccel))
3718  p = &(*p)->next;
3719  last_hwaccel = &hwaccel->next;
3720 }
3721 
3723 {
3724  return hwaccel ? hwaccel->next : first_hwaccel;
3725 }
3726 
3727 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
3728 {
3729  if (lockmgr_cb) {
3730  // There is no good way to rollback a failure to destroy the
3731  // mutex, so we ignore failures.
3734  lockmgr_cb = NULL;
3735  codec_mutex = NULL;
3736  avformat_mutex = NULL;
3737  }
3738 
3739  if (cb) {
3740  void *new_codec_mutex = NULL;
3741  void *new_avformat_mutex = NULL;
3742  int err;
3743  if (err = cb(&new_codec_mutex, AV_LOCK_CREATE)) {
3744  return err > 0 ? AVERROR_UNKNOWN : err;
3745  }
3746  if (err = cb(&new_avformat_mutex, AV_LOCK_CREATE)) {
3747  // Ignore failures to destroy the newly created mutex.
3748  cb(&new_codec_mutex, AV_LOCK_DESTROY);
3749  return err > 0 ? AVERROR_UNKNOWN : err;
3750  }
3751  lockmgr_cb = cb;
3752  codec_mutex = new_codec_mutex;
3753  avformat_mutex = new_avformat_mutex;
3754  }
3755 
3756  return 0;
3757 }
3758 
3759 int ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
3760 {
3761  if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init)
3762  return 0;
3763 
3764  if (lockmgr_cb) {
3766  return -1;
3767  }
3768 
3770  av_log(log_ctx, AV_LOG_ERROR,
3771  "Insufficient thread locking. At least %d threads are "
3772  "calling avcodec_open2() at the same time right now.\n",
3774  if (!lockmgr_cb)
3775  av_log(log_ctx, AV_LOG_ERROR, "No lock manager is set, please see av_lockmgr_register()\n");
3776  ff_avcodec_locked = 1;
3777  ff_unlock_avcodec(codec);
3778  return AVERROR(EINVAL);
3779  }
3781  ff_avcodec_locked = 1;
3782  return 0;
3783 }
3784 
3785 int ff_unlock_avcodec(const AVCodec *codec)
3786 {
3787  if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init)
3788  return 0;
3789 
3791  ff_avcodec_locked = 0;
3793  if (lockmgr_cb) {
3795  return -1;
3796  }
3797 
3798  return 0;
3799 }
3800 
3802 {
3803  if (lockmgr_cb) {
3805  return -1;
3806  }
3807  return 0;
3808 }
3809 
3811 {
3812  if (lockmgr_cb) {
3814  return -1;
3815  }
3816  return 0;
3817 }
3818 
3819 unsigned int avpriv_toupper4(unsigned int x)
3820 {
3821  return av_toupper(x & 0xFF) +
3822  (av_toupper((x >> 8) & 0xFF) << 8) +
3823  (av_toupper((x >> 16) & 0xFF) << 16) +
3824 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
3825 }
3826 
3828 {
3829  int ret;
3830 
3831  dst->owner = src->owner;
3832 
3833  ret = av_frame_ref(dst->f, src->f);
3834  if (ret < 0)
3835  return ret;
3836 
3837  av_assert0(!dst->progress);
3838 
3839  if (src->progress &&
3840  !(dst->progress = av_buffer_ref(src->progress))) {
3841  ff_thread_release_buffer(dst->owner, dst);
3842  return AVERROR(ENOMEM);
3843  }
3844 
3845  return 0;
3846 }
3847 
3848 #if !HAVE_THREADS
3849 
3851 {
3852  return ff_get_format(avctx, fmt);
3853 }
3854 
3856 {
3857  f->owner = avctx;
3858  return ff_get_buffer(avctx, f->f, flags);
3859 }
3860 
3862 {
3863  if (f->f)
3864  av_frame_unref(f->f);
3865 }
3866 
3868 {
3869 }
3870 
3871 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
3872 {
3873 }
3874 
3875 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
3876 {
3877 }
3878 
3880 {
3881  return 1;
3882 }
3883 
3885 {
3886  return 0;
3887 }
3888 
3890 {
3891 }
3892 
3893 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
3894 {
3895 }
3896 
3897 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
3898 {
3899 }
3900 
3901 #endif
3902 
3904 {
3905  return !!s->internal;
3906 }
3907 
3908 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
3909 {
3910  int ret;
3911  char *str;
3912 
3913  ret = av_bprint_finalize(buf, &str);
3914  if (ret < 0)
3915  return ret;
3916  if (!av_bprint_is_complete(buf)) {
3917  av_free(str);
3918  return AVERROR(ENOMEM);
3919  }
3920 
3921  avctx->extradata = str;
3922  /* Note: the string is NUL terminated (so extradata can be read as a
3923  * string), but the ending character is not accounted in the size (in
3924  * binary formats you are likely not supposed to mux that character). When
3925  * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
3926  * zeros. */
3927  avctx->extradata_size = buf->len;
3928  return 0;
3929 }
3930 
3931 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
3932  const uint8_t *end,
3933  uint32_t *av_restrict state)
3934 {
3935  int i;
3936 
3937  av_assert0(p <= end);
3938  if (p >= end)
3939  return end;
3940 
3941  for (i = 0; i < 3; i++) {
3942  uint32_t tmp = *state << 8;
3943  *state = tmp + *(p++);
3944  if (tmp == 0x100 || p == end)
3945  return p;
3946  }
3947 
3948  while (p < end) {
3949  if (p[-1] > 1 ) p += 3;
3950  else if (p[-2] ) p += 2;
3951  else if (p[-3]|(p[-1]-1)) p++;
3952  else {
3953  p++;
3954  break;
3955  }
3956  }
3957 
3958  p = FFMIN(p, end) - 4;
3959  *state = AV_RB32(p);
3960 
3961  return p + 4;
3962 }
3963 
3965 {
3966  AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
3967  if (!props)
3968  return NULL;
3969 
3970  if (size)
3971  *size = sizeof(*props);
3972 
3973  props->vbv_delay = UINT64_MAX;
3974 
3975  return props;
3976 }
3977 
3979 {
3980  AVPacketSideData *tmp;
3981  AVCPBProperties *props;
3982  size_t size;
3983 
3984  props = av_cpb_properties_alloc(&size);
3985  if (!props)
3986  return NULL;
3987 
3988  tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
3989  if (!tmp) {
3990  av_freep(&props);
3991  return NULL;
3992  }
3993 
3994  avctx->coded_side_data = tmp;
3995  avctx->nb_coded_side_data++;
3996 
3998  avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
3999  avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
4000 
4001  return props;
4002 }
4003 
4005 {
4006  av_freep(&par->extradata);
4007 
4008  memset(par, 0, sizeof(*par));
4009 
4011  par->codec_id = AV_CODEC_ID_NONE;
4012  par->format = -1;
4019  par->sample_aspect_ratio = (AVRational){ 0, 1 };
4020  par->profile = FF_PROFILE_UNKNOWN;
4021  par->level = FF_LEVEL_UNKNOWN;
4022 }
4023 
4025 {
4026  AVCodecParameters *par = av_mallocz(sizeof(*par));
4027 
4028  if (!par)
4029  return NULL;
4031  return par;
4032 }
4033 
4035 {
4036  AVCodecParameters *par = *ppar;
4037 
4038  if (!par)
4039  return;
4041 
4042  av_freep(ppar);
4043 }
4044 
4046 {
4048  memcpy(dst, src, sizeof(*dst));
4049 
4050  dst->extradata = NULL;
4051  dst->extradata_size = 0;
4052  if (src->extradata) {
4054  if (!dst->extradata)
4055  return AVERROR(ENOMEM);
4056  memcpy(dst->extradata, src->extradata, src->extradata_size);
4057  dst->extradata_size = src->extradata_size;
4058  }
4059 
4060  return 0;
4061 }
4062 
4064  const AVCodecContext *codec)
4065 {
4067 
4068  par->codec_type = codec->codec_type;
4069  par->codec_id = codec->codec_id;
4070  par->codec_tag = codec->codec_tag;
4071 
4072  par->bit_rate = codec->bit_rate;
4075  par->profile = codec->profile;
4076  par->level = codec->level;
4077 
4078  switch (par->codec_type) {
4079  case AVMEDIA_TYPE_VIDEO:
4080  par->format = codec->pix_fmt;
4081  par->width = codec->width;
4082  par->height = codec->height;
4083  par->field_order = codec->field_order;
4084  par->color_range = codec->color_range;
4085  par->color_primaries = codec->color_primaries;
4086  par->color_trc = codec->color_trc;
4087  par->color_space = codec->colorspace;
4090  par->video_delay = codec->has_b_frames;
4091  break;
4092  case AVMEDIA_TYPE_AUDIO:
4093  par->format = codec->sample_fmt;
4094  par->channel_layout = codec->channel_layout;
4095  par->channels = codec->channels;
4096  par->sample_rate = codec->sample_rate;
4097  par->block_align = codec->block_align;
4098  par->frame_size = codec->frame_size;
4099  par->initial_padding = codec->initial_padding;
4100  par->seek_preroll = codec->seek_preroll;
4101  break;
4102  case AVMEDIA_TYPE_SUBTITLE:
4103  par->width = codec->width;
4104  par->height = codec->height;
4105  break;
4106  }
4107 
4108  if (codec->extradata) {
4110  if (!par->extradata)
4111  return AVERROR(ENOMEM);
4112  memcpy(par->extradata, codec->extradata, codec->extradata_size);
4113  par->extradata_size = codec->extradata_size;
4114  }
4115 
4116  return 0;
4117 }
4118 
4120  const AVCodecParameters *par)
4121 {
4122  codec->codec_type = par->codec_type;
4123  codec->codec_id = par->codec_id;
4124  codec->codec_tag = par->codec_tag;
4125 
4126  codec->bit_rate = par->bit_rate;
4129  codec->profile = par->profile;
4130  codec->level = par->level;
4131 
4132  switch (par->codec_type) {
4133  case AVMEDIA_TYPE_VIDEO:
4134  codec->pix_fmt = par->format;
4135  codec->width = par->width;
4136  codec->height = par->height;
4137  codec->field_order = par->field_order;
4138  codec->color_range = par->color_range;
4139  codec->color_primaries = par->color_primaries;
4140  codec->color_trc = par->color_trc;
4141  codec->colorspace = par->color_space;
4144  codec->has_b_frames = par->video_delay;
4145  break;
4146  case AVMEDIA_TYPE_AUDIO:
4147  codec->sample_fmt = par->format;
4148  codec->channel_layout = par->channel_layout;
4149  codec->channels = par->channels;
4150  codec->sample_rate = par->sample_rate;
4151  codec->block_align = par->block_align;
4152  codec->frame_size = par->frame_size;
4153  codec->initial_padding = par->initial_padding;
4154  codec->seek_preroll = par->seek_preroll;
4155  break;
4156  case AVMEDIA_TYPE_SUBTITLE:
4157  codec->width = par->width;
4158  codec->height = par->height;
4159  break;
4160  }
4161 
4162  if (par->extradata) {
4163  av_freep(&codec->extradata);
4165  if (!codec->extradata)
4166  return AVERROR(ENOMEM);
4167  memcpy(codec->extradata, par->extradata, par->extradata_size);
4168  codec->extradata_size = par->extradata_size;
4169  }
4170 
4171  return 0;
4172 }
4173 
4174 #ifdef TEST
4175 int main(void){
4176  AVCodec *codec = NULL;
4177  int ret = 0;
4179 
4180  while (codec = av_codec_next(codec)) {
4181  if (av_codec_is_encoder(codec)) {
4182  if (codec->type == AVMEDIA_TYPE_AUDIO) {
4183  if (!codec->sample_fmts) {
4184  av_log(NULL, AV_LOG_FATAL, "Encoder %s is missing the sample_fmts field\n", codec->name);
4185  ret = 1;
4186  }
4187  }
4188  }
4189  }
4190  return ret;
4191 }
4192 #endif /* TEST */
#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:2861
static int apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
Definition: utils.c:2049
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:4001
float, planar
Definition: samplefmt.h:69
#define UTF8_MAX_BYTES
Definition: utils.c:2430
#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:3391
#define NULL
Definition: coverity.c:32
const struct AVCodec * codec
Definition: avcodec.h:1648
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:3327
const char const char void * val
Definition: avisynth_c.h:634
#define avpriv_atomic_int_add_and_fetch
Definition: atomic_gcc.h:50
enum AVFieldOrder field_order
Video only.
Definition: avcodec.h:3992
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:3352
static AVCodec * find_encdec(enum AVCodecID id, int encoder)
Definition: utils.c:3016
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:631
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:3999
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
Number of sample formats. DO NOT USE if linking dynamically.
Definition: samplefmt.h:72
static enum AVPixelFormat pix_fmt
#define AV_NUM_DATA_POINTERS
Definition: frame.h:181
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:1343
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:3390
int64_t pts_correction_num_faulty_dts
Number of incorrect PTS values so far.
Definition: avcodec.h:3371
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:2193
This structure describes decoded (raw) audio or video data.
Definition: frame.h:180
int(* send_packet)(AVCodecContext *avctx, const AVPacket *avpkt)
Definition: avcodec.h:3628
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
Definition: utils.c:3034
int(* init)(AVCodecContext *avctx)
Initialize the hwaccel private data.
Definition: avcodec.h:3768
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:928
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:1841
AVFormatContext * ctx
Definition: movenc-test.c:48
int capabilities
Hardware accelerated codec capabilities.
Definition: avcodec.h:3684
const char * fmt
Definition: avisynth_c.h:632
void(* flush)(AVCodecContext *)
Flush buffers.
Definition: avcodec.h:3635
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:3727
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:5983
#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:1704
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2233
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:1594
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:359
const char * g
Definition: vf_curves.c:108
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:3987
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:2677
static int do_decode(AVCodecContext *avctx, AVPacket *pkt)
Definition: utils.c:2703
int attribute_align_arg avcodec_receive_packet(AVCodecContext *avctx, AVPacket *avpkt)
Read encoded data from the encoder.
Definition: utils.c:2917
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:1404
void av_opt_set_defaults(void *s)
Set the values of all AVOption fields to their default values.
Definition: opt.c:1258
const char * avcodec_configuration(void)
Return the libavcodec build-time configuration.
Definition: utils.c:3328
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:2375
int nb_extended_buf
Number of elements in extended_buf.
Definition: frame.h:377
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: avcodec.h:3911
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:180
int ff_unlock_avcodec(const AVCodec *codec)
Definition: utils.c:3785
int num
numerator
Definition: rational.h:44
#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:3389
int size
Definition: avcodec.h:1575
const char * b
Definition: vf_curves.c:109
const char * avcodec_license(void)
Return the libavcodec license.
Definition: utils.c:3333
enum AVPixelFormat pix_fmt
Supported pixel format.
Definition: avcodec.h:3678
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:2050
static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
Pad last frame with silence.
Definition: utils.c:1732
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
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:715
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1867
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:216
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:2274
enum AVPixelFormat format
The pixel format identifying the underlying HW surface type.
Definition: hwcontext.h:200
Mastering display metadata associated with a video frame.
Definition: frame.h:118
unsigned num_rects
Definition: avcodec.h:3891
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:1005
void av_frame_move_ref(AVFrame *dst, AVFrame *src)
Move everything contained in src to dst and reset src.
Definition: frame.c:505
mpegvideo header.
enum AVMediaType type
Definition: avcodec.h:3544
static int convert_sub_to_old_ass_form(AVSubtitle *sub, const AVPacket *pkt, AVRational tb)
Definition: utils.c:2523
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:3092
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:3614
static AVPacket pkt
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:1769
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:3039
enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
Wrapper around get_format() for frame-multithreaded codecs.
Definition: utils.c:3850
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:1025
void avcodec_register_all(void)
Register all the codecs, parsers and bitstream filters which were enabled at configuration time...
Definition: allcodecs.c:61
int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub, int *got_sub_ptr, AVPacket *avpkt)
Decode a subtitle message.
Definition: utils.c:2581
static AVRational av_make_q(int num, int den)
Create a rational.
Definition: rational.h:53
void av_frame_set_pkt_size(AVFrame *frame, int val)
int profile
profile
Definition: avcodec.h:3143
planar GBR 4:4:4 36bpp, big-endian
Definition: pixfmt.h:267
AVCodec.
Definition: avcodec.h:3531
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:2437
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:3903
AVLockOp
Lock operation used by lockmgr.
Definition: avcodec.h:5980
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:3875
enum AVColorSpace color_space
Definition: avcodec.h:4000
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:2524
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:3683
static void * codec_mutex
Definition: utils.c:117
int frame_size
Audio only.
Definition: avcodec.h:4032
Mastering display metadata (based on SMPTE-2086:2014).
Definition: avcodec.h:1512
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:1776
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:646
AVSubtitleRect ** rects
Definition: avcodec.h:3892
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:2465
void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
Definition: utils.c:3893
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:1322
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:3233
struct AVHWAccel * hwaccel
Hardware accelerator in use.
Definition: avcodec.h:2958
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:975
#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:2408
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
Lock the mutex.
Definition: avcodec.h:5982
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:195
int width
Video only.
Definition: avcodec.h:3977
int av_packet_unpack_dictionary(const uint8_t *data, int size, AVDictionary **dict)
Unpack a dictionary from side_data.
Definition: avpacket.c:476
#define av_assert2(cond)
assert() equivalent, that does lie in speed critical code.
Definition: avassert.h:63
8 bit 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:4024
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:2506
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:1592
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:1398
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
#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:3461
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:264
#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:1754
#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:4119
int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
Encode a frame of video.
Definition: utils.c:1915
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:3978
int planes
Definition: internal.h:99
void * frame_thread_encoder
Definition: internal.h:152
int initial_padding
Audio only.
Definition: avcodec.h:4040
Structure to hold side data for an AVFrame.
Definition: frame.h:143
int av_image_check_sar(unsigned int w, unsigned int h, AVRational sar)
Check if the given sample aspect ratio of an image is valid.
Definition: imgutils.c:266
int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Call avcodec_open2 recursively by decrementing counter, unlocking mutex, calling the function and the...
Definition: utils.c:1196
static void validate_avframe_allocation(AVCodecContext *avctx, AVFrame *frame)
Definition: utils.c:856
planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), big-endian
Definition: pixfmt.h:289
uint8_t * data
Definition: avcodec.h:1574
planar GBR 4:4:4 48bpp, big-endian
Definition: pixfmt.h:185
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:101
static int(* lockmgr_cb)(void **mutex, enum AVLockOp op)
Definition: utils.c:111
AVRational av_mul_q(AVRational b, AVRational c)
Multiply two rationals.
Definition: rational.c:80
void av_packet_move_ref(AVPacket *dst, AVPacket *src)
Move every field in src to dst and reset src.
Definition: avpacket.c:600
int ff_init_buffer_info(AVCodecContext *avctx, AVFrame *frame)
does needed setup of pkt_pts/pos and such for (re)get_buffer();
Definition: utils.c:752
uint32_t tag
Definition: movenc.c:1353
#define AV_CODEC_CAP_HWACCEL_VDPAU
Codec can export data for HW decoding (VDPAU).
Definition: avcodec.h:986
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:75
#define AVERROR_EOF
End of file.
Definition: error.h:55
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:205
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
uint8_t * data
Definition: avcodec.h:1518
static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba, uint32_t tag, int bits_per_coded_sample, int64_t bitrate, uint8_t *extradata, int frame_size, int frame_bytes)
Definition: utils.c:3454
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
Definition: avcodec.h:3049
void av_frame_set_best_effort_timestamp(AVFrame *frame, int64_t val)
enum AVSampleFormat av_get_planar_sample_fmt(enum AVSampleFormat sample_fmt)
Get the planar alternative form of the given sample format.
Definition: samplefmt.c:82
int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
Return the index into tab at which {a,b} match elements {[0],[1]} of tab.
Definition: utils.c:3674
ptrdiff_t size
Definition: opengl_enc.c:101
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
Definition: avcodec.h:3032
planar YUV 4:4:0,24bpp, (1 Cr & Cb sample per 1x2 Y samples), big-endian
Definition: pixfmt.h:291
int ff_set_sar(AVCodecContext *avctx, AVRational sar)