FFmpeg
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/attributes.h"
30 #include "libavutil/avassert.h"
31 #include "libavutil/avstring.h"
32 #include "libavutil/bprint.h"
34 #include "libavutil/crc.h"
35 #include "libavutil/frame.h"
36 #include "libavutil/hwcontext.h"
37 #include "libavutil/internal.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/mem_internal.h"
40 #include "libavutil/pixdesc.h"
41 #include "libavutil/imgutils.h"
42 #include "libavutil/samplefmt.h"
43 #include "libavutil/dict.h"
44 #include "libavutil/thread.h"
45 #include "avcodec.h"
46 #include "decode.h"
47 #include "hwconfig.h"
48 #include "libavutil/opt.h"
49 #include "mpegvideo.h"
50 #include "thread.h"
51 #include "frame_thread_encoder.h"
52 #include "internal.h"
53 #include "packet_internal.h"
54 #include "put_bits.h"
55 #include "raw.h"
56 #include "bytestream.h"
57 #include "version.h"
58 #include <stdlib.h>
59 #include <stdarg.h>
60 #include <stdatomic.h>
61 #include <limits.h>
62 #include <float.h>
63 #if CONFIG_ICONV
64 # include <iconv.h>
65 #endif
66 
67 #include "libavutil/ffversion.h"
68 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
69 
71 
72 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
73 {
74  uint8_t **p = ptr;
75  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
76  av_freep(p);
77  *size = 0;
78  return;
79  }
80  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
81  memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
82 }
83 
84 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
85 {
86  uint8_t **p = ptr;
87  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
88  av_freep(p);
89  *size = 0;
90  return;
91  }
92  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
93  memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
94 }
95 
96 int av_codec_is_encoder(const AVCodec *codec)
97 {
98  return codec && (codec->encode_sub || codec->encode2 || codec->receive_packet);
99 }
100 
101 int av_codec_is_decoder(const AVCodec *codec)
102 {
103  return codec && (codec->decode || codec->receive_frame);
104 }
105 
107 {
108  int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
109 
110  if (ret < 0)
111  width = height = 0;
112 
113  s->coded_width = width;
114  s->coded_height = height;
115  s->width = AV_CEIL_RSHIFT(width, s->lowres);
116  s->height = AV_CEIL_RSHIFT(height, s->lowres);
117 
118  return ret;
119 }
120 
122 {
123  int ret = av_image_check_sar(avctx->width, avctx->height, sar);
124 
125  if (ret < 0) {
126  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
127  sar.num, sar.den);
128  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
129  return ret;
130  } else {
131  avctx->sample_aspect_ratio = sar;
132  }
133  return 0;
134 }
135 
137  enum AVMatrixEncoding matrix_encoding)
138 {
139  AVFrameSideData *side_data;
140  enum AVMatrixEncoding *data;
141 
143  if (!side_data)
145  sizeof(enum AVMatrixEncoding));
146 
147  if (!side_data)
148  return AVERROR(ENOMEM);
149 
150  data = (enum AVMatrixEncoding*)side_data->data;
151  *data = matrix_encoding;
152 
153  return 0;
154 }
155 
157  int linesize_align[AV_NUM_DATA_POINTERS])
158 {
159  int i;
160  int w_align = 1;
161  int h_align = 1;
163 
164  if (desc) {
165  w_align = 1 << desc->log2_chroma_w;
166  h_align = 1 << desc->log2_chroma_h;
167  }
168 
169  switch (s->pix_fmt) {
170  case AV_PIX_FMT_YUV420P:
171  case AV_PIX_FMT_YUYV422:
172  case AV_PIX_FMT_YVYU422:
173  case AV_PIX_FMT_UYVY422:
174  case AV_PIX_FMT_YUV422P:
175  case AV_PIX_FMT_YUV440P:
176  case AV_PIX_FMT_YUV444P:
177  case AV_PIX_FMT_GBRP:
178  case AV_PIX_FMT_GBRAP:
179  case AV_PIX_FMT_GRAY8:
180  case AV_PIX_FMT_GRAY16BE:
181  case AV_PIX_FMT_GRAY16LE:
182  case AV_PIX_FMT_YUVJ420P:
183  case AV_PIX_FMT_YUVJ422P:
184  case AV_PIX_FMT_YUVJ440P:
185  case AV_PIX_FMT_YUVJ444P:
186  case AV_PIX_FMT_YUVA420P:
187  case AV_PIX_FMT_YUVA422P:
188  case AV_PIX_FMT_YUVA444P:
245  case AV_PIX_FMT_GBRP9LE:
246  case AV_PIX_FMT_GBRP9BE:
247  case AV_PIX_FMT_GBRP10LE:
248  case AV_PIX_FMT_GBRP10BE:
249  case AV_PIX_FMT_GBRP12LE:
250  case AV_PIX_FMT_GBRP12BE:
251  case AV_PIX_FMT_GBRP14LE:
252  case AV_PIX_FMT_GBRP14BE:
253  case AV_PIX_FMT_GBRP16LE:
254  case AV_PIX_FMT_GBRP16BE:
259  w_align = 16; //FIXME assume 16 pixel per macroblock
260  h_align = 16 * 2; // interlaced needs 2 macroblocks height
261  break;
262  case AV_PIX_FMT_YUV411P:
263  case AV_PIX_FMT_YUVJ411P:
265  w_align = 32;
266  h_align = 16 * 2;
267  break;
268  case AV_PIX_FMT_YUV410P:
269  if (s->codec_id == AV_CODEC_ID_SVQ1) {
270  w_align = 64;
271  h_align = 64;
272  }
273  break;
274  case AV_PIX_FMT_RGB555:
275  if (s->codec_id == AV_CODEC_ID_RPZA) {
276  w_align = 4;
277  h_align = 4;
278  }
280  w_align = 8;
281  h_align = 8;
282  }
283  break;
284  case AV_PIX_FMT_PAL8:
285  case AV_PIX_FMT_BGR8:
286  case AV_PIX_FMT_RGB8:
287  if (s->codec_id == AV_CODEC_ID_SMC ||
289  w_align = 4;
290  h_align = 4;
291  }
292  if (s->codec_id == AV_CODEC_ID_JV ||
294  w_align = 8;
295  h_align = 8;
296  }
297  break;
298  case AV_PIX_FMT_BGR24:
299  if ((s->codec_id == AV_CODEC_ID_MSZH) ||
300  (s->codec_id == AV_CODEC_ID_ZLIB)) {
301  w_align = 4;
302  h_align = 4;
303  }
304  break;
305  case AV_PIX_FMT_RGB24:
306  if (s->codec_id == AV_CODEC_ID_CINEPAK) {
307  w_align = 4;
308  h_align = 4;
309  }
310  break;
311  default:
312  break;
313  }
314 
315  if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
316  w_align = FFMAX(w_align, 8);
317  }
318 
319  *width = FFALIGN(*width, w_align);
320  *height = FFALIGN(*height, h_align);
321  if (s->codec_id == AV_CODEC_ID_H264 || s->lowres ||
324  ) {
325  // some of the optimized chroma MC reads one line too much
326  // which is also done in mpeg decoders with lowres > 0
327  *height += 2;
328 
329  // H.264 uses edge emulation for out of frame motion vectors, for this
330  // it requires a temporary area large enough to hold a 21x21 block,
331  // increasing witdth ensure that the temporary area is large enough,
332  // the next rounded up width is 32
333  *width = FFMAX(*width, 32);
334  }
335 
336  for (i = 0; i < 4; i++)
337  linesize_align[i] = STRIDE_ALIGN;
338 }
339 
341 {
343  int chroma_shift = desc->log2_chroma_w;
344  int linesize_align[AV_NUM_DATA_POINTERS];
345  int align;
346 
347  avcodec_align_dimensions2(s, width, height, linesize_align);
348  align = FFMAX(linesize_align[0], linesize_align[3]);
349  linesize_align[1] <<= chroma_shift;
350  linesize_align[2] <<= chroma_shift;
351  align = FFMAX3(align, linesize_align[1], linesize_align[2]);
352  *width = FFALIGN(*width, align);
353 }
354 
355 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
356 {
357  if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
358  return AVERROR(EINVAL);
359  pos--;
360 
361  *xpos = (pos&1) * 128;
362  *ypos = ((pos>>1)^(pos<4)) * 128;
363 
364  return 0;
365 }
366 
368 {
369  int pos, xout, yout;
370 
371  for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
372  if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
373  return pos;
374  }
376 }
377 
379  enum AVSampleFormat sample_fmt, const uint8_t *buf,
380  int buf_size, int align)
381 {
382  int ch, planar, needed_size, ret = 0;
383 
384  needed_size = av_samples_get_buffer_size(NULL, nb_channels,
385  frame->nb_samples, sample_fmt,
386  align);
387  if (buf_size < needed_size)
388  return AVERROR(EINVAL);
389 
390  planar = av_sample_fmt_is_planar(sample_fmt);
391  if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
392  if (!(frame->extended_data = av_mallocz_array(nb_channels,
393  sizeof(*frame->extended_data))))
394  return AVERROR(ENOMEM);
395  } else {
396  frame->extended_data = frame->data;
397  }
398 
399  if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
400  (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
401  sample_fmt, align)) < 0) {
402  if (frame->extended_data != frame->data)
403  av_freep(&frame->extended_data);
404  return ret;
405  }
406  if (frame->extended_data != frame->data) {
407  for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
408  frame->data[ch] = frame->extended_data[ch];
409  }
410 
411  return ret;
412 }
413 
414 void ff_color_frame(AVFrame *frame, const int c[4])
415 {
417  int p, y;
418 
420 
421  for (p = 0; p<desc->nb_components; p++) {
422  uint8_t *dst = frame->data[p];
423  int is_chroma = p == 1 || p == 2;
424  int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
425  int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
426  if (desc->comp[0].depth >= 9) {
427  ((uint16_t*)dst)[0] = c[p];
428  av_memcpy_backptr(dst + 2, 2, bytes - 2);
429  dst += frame->linesize[p];
430  for (y = 1; y < height; y++) {
431  memcpy(dst, frame->data[p], 2*bytes);
432  dst += frame->linesize[p];
433  }
434  } else {
435  for (y = 0; y < height; y++) {
436  memset(dst, c[p], bytes);
437  dst += frame->linesize[p];
438  }
439  }
440  }
441 }
442 
443 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
444 {
445  int i;
446 
447  for (i = 0; i < count; i++) {
448  int r = func(c, (char *)arg + i * size);
449  if (ret)
450  ret[i] = r;
451  }
452  emms_c();
453  return 0;
454 }
455 
456 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
457 {
458  int i;
459 
460  for (i = 0; i < count; i++) {
461  int r = func(c, arg, i, 0);
462  if (ret)
463  ret[i] = r;
464  }
465  emms_c();
466  return 0;
467 }
468 
470  unsigned int fourcc)
471 {
472  while (tags->pix_fmt >= 0) {
473  if (tags->fourcc == fourcc)
474  return tags->pix_fmt;
475  tags++;
476  }
477  return AV_PIX_FMT_NONE;
478 }
479 
480 #if FF_API_CODEC_GET_SET
481 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
482 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
484 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
485 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
486 
488 {
489  return codec->properties;
490 }
491 
493 {
494  return codec->max_lowres;
495 }
496 #endif
497 
500 }
501 
503 {
504  int64_t bit_rate;
505  int bits_per_sample;
506 
507  switch (ctx->codec_type) {
508  case AVMEDIA_TYPE_VIDEO:
509  case AVMEDIA_TYPE_DATA:
512  bit_rate = ctx->bit_rate;
513  break;
514  case AVMEDIA_TYPE_AUDIO:
515  bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
516  if (bits_per_sample) {
517  bit_rate = ctx->sample_rate * (int64_t)ctx->channels;
518  if (bit_rate > INT64_MAX / bits_per_sample) {
519  bit_rate = 0;
520  } else
521  bit_rate *= bits_per_sample;
522  } else
523  bit_rate = ctx->bit_rate;
524  break;
525  default:
526  bit_rate = 0;
527  break;
528  }
529  return bit_rate;
530 }
531 
532 
533 static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
534 {
535  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
537 }
538 
539 static void ff_unlock_avcodec(const AVCodec *codec)
540 {
541  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
543 }
544 
545 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
546 {
547  int ret = 0;
548  int codec_init_ok = 0;
549  AVDictionary *tmp = NULL;
550  const AVPixFmtDescriptor *pixdesc;
551  AVCodecInternal *avci;
552 
553  if (avcodec_is_open(avctx))
554  return 0;
555 
556  if (!codec && !avctx->codec) {
557  av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
558  return AVERROR(EINVAL);
559  }
560  if (codec && avctx->codec && codec != avctx->codec) {
561  av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
562  "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
563  return AVERROR(EINVAL);
564  }
565  if (!codec)
566  codec = avctx->codec;
567 
568  if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
569  return AVERROR(EINVAL);
570 
571  if (options)
572  av_dict_copy(&tmp, *options, 0);
573 
574  ff_lock_avcodec(avctx, codec);
575 
576  avci = av_mallocz(sizeof(*avci));
577  if (!avci) {
578  ret = AVERROR(ENOMEM);
579  goto end;
580  }
581  avctx->internal = avci;
582 
583 #if FF_API_OLD_ENCDEC
584  avci->to_free = av_frame_alloc();
587  if (!avci->to_free || !avci->compat_decode_frame || !avci->compat_encode_packet) {
588  ret = AVERROR(ENOMEM);
589  goto free_and_end;
590  }
591 #endif
592  avci->buffer_frame = av_frame_alloc();
593  avci->buffer_pkt = av_packet_alloc();
594  avci->es.in_frame = av_frame_alloc();
595  avci->ds.in_pkt = av_packet_alloc();
597  if (!avci->buffer_frame || !avci->buffer_pkt ||
598  !avci->es.in_frame || !avci->ds.in_pkt ||
599  !avci->last_pkt_props) {
600  ret = AVERROR(ENOMEM);
601  goto free_and_end;
602  }
603 
604  avci->skip_samples_multiplier = 1;
605 
606  if (codec->priv_data_size > 0) {
607  if (!avctx->priv_data) {
608  avctx->priv_data = av_mallocz(codec->priv_data_size);
609  if (!avctx->priv_data) {
610  ret = AVERROR(ENOMEM);
611  goto free_and_end;
612  }
613  if (codec->priv_class) {
614  *(const AVClass **)avctx->priv_data = codec->priv_class;
616  }
617  }
618  if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
619  goto free_and_end;
620  } else {
621  avctx->priv_data = NULL;
622  }
623  if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
624  goto free_and_end;
625 
626  if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
627  av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
628  ret = AVERROR(EINVAL);
629  goto free_and_end;
630  }
631 
632  // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
633  if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
634  (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
635  if (avctx->coded_width && avctx->coded_height)
636  ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
637  else if (avctx->width && avctx->height)
638  ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
639  if (ret < 0)
640  goto free_and_end;
641  }
642 
643  if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
644  && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
645  || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
646  av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
647  ff_set_dimensions(avctx, 0, 0);
648  }
649 
650  if (avctx->width > 0 && avctx->height > 0) {
651  if (av_image_check_sar(avctx->width, avctx->height,
652  avctx->sample_aspect_ratio) < 0) {
653  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
654  avctx->sample_aspect_ratio.num,
655  avctx->sample_aspect_ratio.den);
656  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
657  }
658  }
659 
660  /* if the decoder init function was already called previously,
661  * free the already allocated subtitle_header before overwriting it */
662  if (av_codec_is_decoder(codec))
663  av_freep(&avctx->subtitle_header);
664 
665  if (avctx->channels > FF_SANE_NB_CHANNELS || avctx->channels < 0) {
666  av_log(avctx, AV_LOG_ERROR, "Too many or invalid channels: %d\n", avctx->channels);
667  ret = AVERROR(EINVAL);
668  goto free_and_end;
669  }
670  if (av_codec_is_decoder(codec) &&
671  codec->type == AVMEDIA_TYPE_AUDIO &&
673  avctx->channels == 0) {
674  av_log(avctx, AV_LOG_ERROR, "Decoder requires channel count but channels not set\n");
675  ret = AVERROR(EINVAL);
676  goto free_and_end;
677  }
678 
679  if (avctx->sample_rate < 0) {
680  av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate);
681  ret = AVERROR(EINVAL);
682  goto free_and_end;
683  }
684  if (avctx->block_align < 0) {
685  av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align);
686  ret = AVERROR(EINVAL);
687  goto free_and_end;
688  }
689 
690 #if FF_API_THREAD_SAFE_CALLBACKS
692  if ((avctx->thread_type & FF_THREAD_FRAME) &&
694  !avctx->thread_safe_callbacks) {
695  av_log(avctx, AV_LOG_WARNING, "Requested frame threading with a "
696  "custom get_buffer2() implementation which is not marked as "
697  "thread safe. This is not supported anymore, make your "
698  "callback thread-safe.\n");
699  }
701 #endif
702 
703  avctx->codec = codec;
704  if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
705  avctx->codec_id == AV_CODEC_ID_NONE) {
706  avctx->codec_type = codec->type;
707  avctx->codec_id = codec->id;
708  }
709  if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
710  && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
711  av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
712  ret = AVERROR(EINVAL);
713  goto free_and_end;
714  }
715  avctx->frame_number = 0;
717 
718  if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
720  const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
721  const AVCodec *codec2;
722  av_log(avctx, AV_LOG_ERROR,
723  "The %s '%s' is experimental but experimental codecs are not enabled, "
724  "add '-strict %d' if you want to use it.\n",
725  codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
726  codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
727  if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
728  av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
729  codec_string, codec2->name);
730  ret = AVERROR_EXPERIMENTAL;
731  goto free_and_end;
732  }
733 
734  if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
735  (!avctx->time_base.num || !avctx->time_base.den)) {
736  avctx->time_base.num = 1;
737  avctx->time_base.den = avctx->sample_rate;
738  }
739 
740  if (!HAVE_THREADS)
741  av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
742 
743  if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
744  ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
745  ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
746  ff_lock_avcodec(avctx, codec);
747  if (ret < 0)
748  goto free_and_end;
749  }
750 
751  if (av_codec_is_decoder(avctx->codec)) {
752  ret = ff_decode_bsfs_init(avctx);
753  if (ret < 0)
754  goto free_and_end;
755  }
756 
757  if (HAVE_THREADS
758  && !(avci->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
759  ret = ff_thread_init(avctx);
760  if (ret < 0) {
761  goto free_and_end;
762  }
763  }
764  if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
765  avctx->thread_count = 1;
766 
767  if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
768  av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
769  avctx->codec->max_lowres);
770  avctx->lowres = avctx->codec->max_lowres;
771  }
772 
773  if (av_codec_is_encoder(avctx->codec)) {
774  int i;
775 #if FF_API_CODED_FRAME
777  avctx->coded_frame = av_frame_alloc();
778  if (!avctx->coded_frame) {
779  ret = AVERROR(ENOMEM);
780  goto free_and_end;
781  }
783 #endif
784 
785  if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
786  av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
787  ret = AVERROR(EINVAL);
788  goto free_and_end;
789  }
790 
791  if (avctx->codec->sample_fmts) {
792  for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
793  if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
794  break;
795  if (avctx->channels == 1 &&
798  avctx->sample_fmt = avctx->codec->sample_fmts[i];
799  break;
800  }
801  }
802  if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
803  char buf[128];
804  snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
805  av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
806  (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
807  ret = AVERROR(EINVAL);
808  goto free_and_end;
809  }
810  }
811  if (avctx->codec->pix_fmts) {
812  for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
813  if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
814  break;
815  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
816  && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
818  char buf[128];
819  snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
820  av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
821  (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
822  ret = AVERROR(EINVAL);
823  goto free_and_end;
824  }
825  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
826  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
827  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
828  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
829  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
830  avctx->color_range = AVCOL_RANGE_JPEG;
831  }
832  if (avctx->codec->supported_samplerates) {
833  for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
834  if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
835  break;
836  if (avctx->codec->supported_samplerates[i] == 0) {
837  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
838  avctx->sample_rate);
839  ret = AVERROR(EINVAL);
840  goto free_and_end;
841  }
842  }
843  if (avctx->sample_rate < 0) {
844  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
845  avctx->sample_rate);
846  ret = AVERROR(EINVAL);
847  goto free_and_end;
848  }
849  if (avctx->codec->channel_layouts) {
850  if (!avctx->channel_layout) {
851  av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
852  } else {
853  for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
854  if (avctx->channel_layout == avctx->codec->channel_layouts[i])
855  break;
856  if (avctx->codec->channel_layouts[i] == 0) {
857  char buf[512];
858  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
859  av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
860  ret = AVERROR(EINVAL);
861  goto free_and_end;
862  }
863  }
864  }
865  if (avctx->channel_layout && avctx->channels) {
867  if (channels != avctx->channels) {
868  char buf[512];
869  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
870  av_log(avctx, AV_LOG_ERROR,
871  "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
872  buf, channels, avctx->channels);
873  ret = AVERROR(EINVAL);
874  goto free_and_end;
875  }
876  } else if (avctx->channel_layout) {
878  }
879  if (avctx->channels < 0) {
880  av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
881  avctx->channels);
882  ret = AVERROR(EINVAL);
883  goto free_and_end;
884  }
885  if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
886  pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
887  if ( avctx->bits_per_raw_sample < 0
888  || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
889  av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
890  avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
891  avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
892  }
893  if (avctx->width <= 0 || avctx->height <= 0) {
894  av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
895  ret = AVERROR(EINVAL);
896  goto free_and_end;
897  }
898  }
899  if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
900  && avctx->bit_rate>0 && avctx->bit_rate<1000) {
901  av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
902  }
903 
904  if (!avctx->rc_initial_buffer_occupancy)
905  avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
906 
907  if (avctx->ticks_per_frame && avctx->time_base.num &&
908  avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
909  av_log(avctx, AV_LOG_ERROR,
910  "ticks_per_frame %d too large for the timebase %d/%d.",
911  avctx->ticks_per_frame,
912  avctx->time_base.num,
913  avctx->time_base.den);
914  goto free_and_end;
915  }
916 
917  if (avctx->hw_frames_ctx) {
918  AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
919  if (frames_ctx->format != avctx->pix_fmt) {
920  av_log(avctx, AV_LOG_ERROR,
921  "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
922  ret = AVERROR(EINVAL);
923  goto free_and_end;
924  }
925  if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
926  avctx->sw_pix_fmt != frames_ctx->sw_format) {
927  av_log(avctx, AV_LOG_ERROR,
928  "Mismatching AVCodecContext.sw_pix_fmt (%s) "
929  "and AVHWFramesContext.sw_format (%s)\n",
931  av_get_pix_fmt_name(frames_ctx->sw_format));
932  ret = AVERROR(EINVAL);
933  goto free_and_end;
934  }
935  avctx->sw_pix_fmt = frames_ctx->sw_format;
936  }
937  }
938 
941  avctx->pts_correction_last_pts =
942  avctx->pts_correction_last_dts = INT64_MIN;
943 
944  if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
946  av_log(avctx, AV_LOG_WARNING,
947  "gray decoding requested but not enabled at configuration time\n");
948  if (avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) {
950  }
951 
952  if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
953  || avci->frame_thread_encoder)) {
954  ret = avctx->codec->init(avctx);
955  if (ret < 0) {
956  codec_init_ok = -1;
957  goto free_and_end;
958  }
959  codec_init_ok = 1;
960  }
961 
962  ret=0;
963 
964  if (av_codec_is_decoder(avctx->codec)) {
965  if (!avctx->bit_rate)
966  avctx->bit_rate = get_bit_rate(avctx);
967  /* validate channel layout from the decoder */
968  if (avctx->channel_layout) {
970  if (!avctx->channels)
971  avctx->channels = channels;
972  else if (channels != avctx->channels) {
973  char buf[512];
974  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
975  av_log(avctx, AV_LOG_WARNING,
976  "Channel layout '%s' with %d channels does not match specified number of channels %d: "
977  "ignoring specified channel layout\n",
978  buf, channels, avctx->channels);
979  avctx->channel_layout = 0;
980  }
981  }
982  if (avctx->channels && avctx->channels < 0 ||
983  avctx->channels > FF_SANE_NB_CHANNELS) {
984  ret = AVERROR(EINVAL);
985  goto free_and_end;
986  }
987  if (avctx->bits_per_coded_sample < 0) {
988  ret = AVERROR(EINVAL);
989  goto free_and_end;
990  }
991  if (avctx->sub_charenc) {
992  if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
993  av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
994  "supported with subtitles codecs\n");
995  ret = AVERROR(EINVAL);
996  goto free_and_end;
997  } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
998  av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
999  "subtitles character encoding will be ignored\n",
1000  avctx->codec_descriptor->name);
1002  } else {
1003  /* input character encoding is set for a text based subtitle
1004  * codec at this point */
1007 
1009 #if CONFIG_ICONV
1010  iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1011  if (cd == (iconv_t)-1) {
1012  ret = AVERROR(errno);
1013  av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1014  "with input character encoding \"%s\"\n", avctx->sub_charenc);
1015  goto free_and_end;
1016  }
1017  iconv_close(cd);
1018 #else
1019  av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1020  "conversion needs a libavcodec built with iconv support "
1021  "for this codec\n");
1022  ret = AVERROR(ENOSYS);
1023  goto free_and_end;
1024 #endif
1025  }
1026  }
1027  }
1028 
1029 #if FF_API_AVCTX_TIMEBASE
1030  if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1031  avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1032 #endif
1033  }
1034  if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1035  av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1036  }
1037 
1038 end:
1039  ff_unlock_avcodec(codec);
1040  if (options) {
1041  av_dict_free(options);
1042  *options = tmp;
1043  }
1044 
1045  return ret;
1046 free_and_end:
1047  if (avctx->codec && avctx->codec->close &&
1048  (codec_init_ok > 0 || (codec_init_ok < 0 &&
1050  avctx->codec->close(avctx);
1051 
1052  if (HAVE_THREADS && avci->thread_ctx)
1053  ff_thread_free(avctx);
1054 
1055  if (codec->priv_class && avctx->priv_data)
1056  av_opt_free(avctx->priv_data);
1057  av_opt_free(avctx);
1058 
1059  if (av_codec_is_encoder(avctx->codec)) {
1060 #if FF_API_CODED_FRAME
1062  av_frame_free(&avctx->coded_frame);
1064 #endif
1065  av_freep(&avctx->extradata);
1066  avctx->extradata_size = 0;
1067  }
1068 
1069  av_dict_free(&tmp);
1070  av_freep(&avctx->priv_data);
1071  av_freep(&avctx->subtitle_header);
1072 
1073 #if FF_API_OLD_ENCDEC
1074  av_frame_free(&avci->to_free);
1077 #endif
1078  av_frame_free(&avci->buffer_frame);
1079  av_packet_free(&avci->buffer_pkt);
1081 
1082  av_packet_free(&avci->ds.in_pkt);
1083  av_frame_free(&avci->es.in_frame);
1084  av_bsf_free(&avci->bsf);
1085 
1086  av_buffer_unref(&avci->pool);
1087  av_freep(&avci);
1088  avctx->internal = NULL;
1089  avctx->codec = NULL;
1090  goto end;
1091 }
1092 
1094 {
1095  AVCodecInternal *avci = avctx->internal;
1096 
1097  if (av_codec_is_encoder(avctx->codec)) {
1098  int caps = avctx->codec->capabilities;
1099 
1100  if (!(caps & AV_CODEC_CAP_ENCODER_FLUSH)) {
1101  // Only encoders that explicitly declare support for it can be
1102  // flushed. Otherwise, this is a no-op.
1103  av_log(avctx, AV_LOG_WARNING, "Ignoring attempt to flush encoder "
1104  "that doesn't support it\n");
1105  return;
1106  }
1107 
1108  // We haven't implemented flushing for frame-threaded encoders.
1110  }
1111 
1112  avci->draining = 0;
1113  avci->draining_done = 0;
1114  avci->nb_draining_errors = 0;
1116 #if FF_API_OLD_ENCDEC
1119 #endif
1120  av_packet_unref(avci->buffer_pkt);
1121 
1124  &avci->pkt_props_tail);
1125 
1126  av_frame_unref(avci->es.in_frame);
1127  av_packet_unref(avci->ds.in_pkt);
1128 
1129  if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
1130  ff_thread_flush(avctx);
1131  else if (avctx->codec->flush)
1132  avctx->codec->flush(avctx);
1133 
1134  avctx->pts_correction_last_pts =
1135  avctx->pts_correction_last_dts = INT64_MIN;
1136 
1137  if (av_codec_is_decoder(avctx->codec))
1138  av_bsf_flush(avci->bsf);
1139 
1140 #if FF_API_OLD_ENCDEC
1142  if (!avctx->refcounted_frames)
1143  av_frame_unref(avci->to_free);
1145 #endif
1146 }
1147 
1149 {
1150  int i;
1151 
1152  for (i = 0; i < sub->num_rects; i++) {
1153  av_freep(&sub->rects[i]->data[0]);
1154  av_freep(&sub->rects[i]->data[1]);
1155  av_freep(&sub->rects[i]->data[2]);
1156  av_freep(&sub->rects[i]->data[3]);
1157  av_freep(&sub->rects[i]->text);
1158  av_freep(&sub->rects[i]->ass);
1159  av_freep(&sub->rects[i]);
1160  }
1161 
1162  av_freep(&sub->rects);
1163 
1164  memset(sub, 0, sizeof(*sub));
1165 }
1166 
1168 {
1169  int i;
1170 
1171  if (!avctx)
1172  return 0;
1173 
1174  if (avcodec_is_open(avctx)) {
1175  if (CONFIG_FRAME_THREAD_ENCODER &&
1176  avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1178  }
1179  if (HAVE_THREADS && avctx->internal->thread_ctx)
1180  ff_thread_free(avctx);
1181  if (avctx->codec && avctx->codec->close)
1182  avctx->codec->close(avctx);
1183  avctx->internal->byte_buffer_size = 0;
1184  av_freep(&avctx->internal->byte_buffer);
1185 #if FF_API_OLD_ENCDEC
1186  av_frame_free(&avctx->internal->to_free);
1189 #endif
1194  &avctx->internal->pkt_props_tail);
1195 
1196  av_packet_free(&avctx->internal->ds.in_pkt);
1197  av_frame_free(&avctx->internal->es.in_frame);
1198 
1199  av_buffer_unref(&avctx->internal->pool);
1200 
1201  if (avctx->hwaccel && avctx->hwaccel->uninit)
1202  avctx->hwaccel->uninit(avctx);
1204 
1205  av_bsf_free(&avctx->internal->bsf);
1206 
1207  av_freep(&avctx->internal);
1208  }
1209 
1210  for (i = 0; i < avctx->nb_coded_side_data; i++)
1211  av_freep(&avctx->coded_side_data[i].data);
1212  av_freep(&avctx->coded_side_data);
1213  avctx->nb_coded_side_data = 0;
1214 
1215  av_buffer_unref(&avctx->hw_frames_ctx);
1216  av_buffer_unref(&avctx->hw_device_ctx);
1217 
1218  if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1219  av_opt_free(avctx->priv_data);
1220  av_opt_free(avctx);
1221  av_freep(&avctx->priv_data);
1222  if (av_codec_is_encoder(avctx->codec)) {
1223  av_freep(&avctx->extradata);
1224 #if FF_API_CODED_FRAME
1226  av_frame_free(&avctx->coded_frame);
1228 #endif
1229  }
1230  avctx->codec = NULL;
1231  avctx->active_thread_type = 0;
1232 
1233  return 0;
1234 }
1235 
1236 const char *avcodec_get_name(enum AVCodecID id)
1237 {
1238  const AVCodecDescriptor *cd;
1239  const AVCodec *codec;
1240 
1241  if (id == AV_CODEC_ID_NONE)
1242  return "none";
1243  cd = avcodec_descriptor_get(id);
1244  if (cd)
1245  return cd->name;
1246  av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1247  codec = avcodec_find_decoder(id);
1248  if (codec)
1249  return codec->name;
1250  codec = avcodec_find_encoder(id);
1251  if (codec)
1252  return codec->name;
1253  return "unknown_codec";
1254 }
1255 
1256 #if FF_API_TAG_STRING
1257 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1258 {
1259  int i, len, ret = 0;
1260 
1261 #define TAG_PRINT(x) \
1262  (((x) >= '0' && (x) <= '9') || \
1263  ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1264  ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
1265 
1266  for (i = 0; i < 4; i++) {
1267  len = snprintf(buf, buf_size,
1268  TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1269  buf += len;
1270  buf_size = buf_size > len ? buf_size - len : 0;
1271  ret += len;
1272  codec_tag >>= 8;
1273  }
1274  return ret;
1275 }
1276 #endif
1277 
1278 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1279 {
1280  const char *codec_type;
1281  const char *codec_name;
1282  const char *profile = NULL;
1283  int64_t bitrate;
1284  int new_line = 0;
1285  AVRational display_aspect_ratio;
1286  const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1287 
1288  if (!buf || buf_size <= 0)
1289  return;
1290  codec_type = av_get_media_type_string(enc->codec_type);
1291  codec_name = avcodec_get_name(enc->codec_id);
1292  profile = avcodec_profile_name(enc->codec_id, enc->profile);
1293 
1294  snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1295  codec_name);
1296  buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1297 
1298  if (enc->codec && strcmp(enc->codec->name, codec_name))
1299  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1300 
1301  if (profile)
1302  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1303  if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1305  && enc->refs)
1306  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1307  ", %d reference frame%s",
1308  enc->refs, enc->refs > 1 ? "s" : "");
1309 
1310  if (enc->codec_tag)
1311  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1312  av_fourcc2str(enc->codec_tag), enc->codec_tag);
1313 
1314  switch (enc->codec_type) {
1315  case AVMEDIA_TYPE_VIDEO:
1316  {
1317  char detail[256] = "(";
1318 
1319  av_strlcat(buf, separator, buf_size);
1320 
1321  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1322  "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1324  if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1326  av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1328  av_strlcatf(detail, sizeof(detail), "%s, ",
1330 
1331  if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1333  enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1334  if (enc->colorspace != (int)enc->color_primaries ||
1335  enc->colorspace != (int)enc->color_trc) {
1336  new_line = 1;
1337  av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1341  } else
1342  av_strlcatf(detail, sizeof(detail), "%s, ",
1344  }
1345 
1346  if (enc->field_order != AV_FIELD_UNKNOWN) {
1347  const char *field_order = "progressive";
1348  if (enc->field_order == AV_FIELD_TT)
1349  field_order = "top first";
1350  else if (enc->field_order == AV_FIELD_BB)
1351  field_order = "bottom first";
1352  else if (enc->field_order == AV_FIELD_TB)
1353  field_order = "top coded first (swapped)";
1354  else if (enc->field_order == AV_FIELD_BT)
1355  field_order = "bottom coded first (swapped)";
1356 
1357  av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1358  }
1359 
1360  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1362  av_strlcatf(detail, sizeof(detail), "%s, ",
1364 
1365  if (strlen(detail) > 1) {
1366  detail[strlen(detail) - 2] = 0;
1367  av_strlcatf(buf, buf_size, "%s)", detail);
1368  }
1369  }
1370 
1371  if (enc->width) {
1372  av_strlcat(buf, new_line ? separator : ", ", buf_size);
1373 
1374  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1375  "%dx%d",
1376  enc->width, enc->height);
1377 
1378  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1379  (enc->width != enc->coded_width ||
1380  enc->height != enc->coded_height))
1381  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1382  " (%dx%d)", enc->coded_width, enc->coded_height);
1383 
1384  if (enc->sample_aspect_ratio.num) {
1385  av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1386  enc->width * (int64_t)enc->sample_aspect_ratio.num,
1387  enc->height * (int64_t)enc->sample_aspect_ratio.den,
1388  1024 * 1024);
1389  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1390  " [SAR %d:%d DAR %d:%d]",
1392  display_aspect_ratio.num, display_aspect_ratio.den);
1393  }
1394  if (av_log_get_level() >= AV_LOG_DEBUG) {
1395  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1396  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1397  ", %d/%d",
1398  enc->time_base.num / g, enc->time_base.den / g);
1399  }
1400  }
1401  if (encode) {
1402  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1403  ", q=%d-%d", enc->qmin, enc->qmax);
1404  } else {
1406  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1407  ", Closed Captions");
1409  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1410  ", lossless");
1411  }
1412  break;
1413  case AVMEDIA_TYPE_AUDIO:
1414  av_strlcat(buf, separator, buf_size);
1415 
1416  if (enc->sample_rate) {
1417  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1418  "%d Hz, ", enc->sample_rate);
1419  }
1420  av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1421  if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1422  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1423  ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1424  }
1425  if ( enc->bits_per_raw_sample > 0
1427  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1428  " (%d bit)", enc->bits_per_raw_sample);
1429  if (av_log_get_level() >= AV_LOG_VERBOSE) {
1430  if (enc->initial_padding)
1431  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1432  ", delay %d", enc->initial_padding);
1433  if (enc->trailing_padding)
1434  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1435  ", padding %d", enc->trailing_padding);
1436  }
1437  break;
1438  case AVMEDIA_TYPE_DATA:
1439  if (av_log_get_level() >= AV_LOG_DEBUG) {
1440  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1441  if (g)
1442  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1443  ", %d/%d",
1444  enc->time_base.num / g, enc->time_base.den / g);
1445  }
1446  break;
1447  case AVMEDIA_TYPE_SUBTITLE:
1448  if (enc->width)
1449  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1450  ", %dx%d", enc->width, enc->height);
1451  break;
1452  default:
1453  return;
1454  }
1455  if (encode) {
1456  if (enc->flags & AV_CODEC_FLAG_PASS1)
1457  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1458  ", pass 1");
1459  if (enc->flags & AV_CODEC_FLAG_PASS2)
1460  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1461  ", pass 2");
1462  }
1463  bitrate = get_bit_rate(enc);
1464  if (bitrate != 0) {
1465  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1466  ", %"PRId64" kb/s", bitrate / 1000);
1467  } else if (enc->rc_max_rate > 0) {
1468  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1469  ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1470  }
1471 }
1472 
1473 const char *av_get_profile_name(const AVCodec *codec, int profile)
1474 {
1475  const AVProfile *p;
1476  if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1477  return NULL;
1478 
1479  for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1480  if (p->profile == profile)
1481  return p->name;
1482 
1483  return NULL;
1484 }
1485 
1487 {
1488  const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1489  const AVProfile *p;
1490 
1491  if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1492  return NULL;
1493 
1494  for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1495  if (p->profile == profile)
1496  return p->name;
1497 
1498  return NULL;
1499 }
1500 
1501 unsigned avcodec_version(void)
1502 {
1505  av_assert0(AV_CODEC_ID_SRT==94216);
1507 
1508  return LIBAVCODEC_VERSION_INT;
1509 }
1510 
1511 const char *avcodec_configuration(void)
1512 {
1513  return FFMPEG_CONFIGURATION;
1514 }
1515 
1516 const char *avcodec_license(void)
1517 {
1518 #define LICENSE_PREFIX "libavcodec license: "
1519  return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
1520 }
1521 
1523 {
1524  switch (codec_id) {
1525  case AV_CODEC_ID_8SVX_EXP:
1526  case AV_CODEC_ID_8SVX_FIB:
1528  case AV_CODEC_ID_ADPCM_CT:
1540  return 4;
1541  case AV_CODEC_ID_DSD_LSBF:
1542  case AV_CODEC_ID_DSD_MSBF:
1545  case AV_CODEC_ID_PCM_ALAW:
1546  case AV_CODEC_ID_PCM_MULAW:
1547  case AV_CODEC_ID_PCM_VIDC:
1548  case AV_CODEC_ID_PCM_S8:
1550  case AV_CODEC_ID_PCM_U8:
1551  case AV_CODEC_ID_SDX2_DPCM:
1552  case AV_CODEC_ID_DERF_DPCM:
1553  return 8;
1554  case AV_CODEC_ID_PCM_S16BE:
1556  case AV_CODEC_ID_PCM_S16LE:
1558  case AV_CODEC_ID_PCM_U16BE:
1559  case AV_CODEC_ID_PCM_U16LE:
1560  return 16;
1562  case AV_CODEC_ID_PCM_S24BE:
1563  case AV_CODEC_ID_PCM_S24LE:
1565  case AV_CODEC_ID_PCM_U24BE:
1566  case AV_CODEC_ID_PCM_U24LE:
1567  return 24;
1568  case AV_CODEC_ID_PCM_S32BE:
1569  case AV_CODEC_ID_PCM_S32LE:
1571  case AV_CODEC_ID_PCM_U32BE:
1572  case AV_CODEC_ID_PCM_U32LE:
1573  case AV_CODEC_ID_PCM_F32BE:
1574  case AV_CODEC_ID_PCM_F32LE:
1575  case AV_CODEC_ID_PCM_F24LE:
1576  case AV_CODEC_ID_PCM_F16LE:
1577  return 32;
1578  case AV_CODEC_ID_PCM_F64BE:
1579  case AV_CODEC_ID_PCM_F64LE:
1580  case AV_CODEC_ID_PCM_S64BE:
1581  case AV_CODEC_ID_PCM_S64LE:
1582  return 64;
1583  default:
1584  return 0;
1585  }
1586 }
1587 
1589 {
1590  static const enum AVCodecID map[][2] = {
1596  [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1597  [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1598  [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1600  [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1601  [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1602  };
1603  if (fmt < 0 || fmt >= FF_ARRAY_ELEMS(map))
1604  return AV_CODEC_ID_NONE;
1605  if (be < 0 || be > 1)
1606  be = AV_NE(1, 0);
1607  return map[fmt][be];
1608 }
1609 
1611 {
1612  switch (codec_id) {
1614  return 2;
1616  return 3;
1620  case AV_CODEC_ID_ADPCM_SWF:
1621  case AV_CODEC_ID_ADPCM_MS:
1622  return 4;
1623  default:
1624  return av_get_exact_bits_per_sample(codec_id);
1625  }
1626 }
1627 
1628 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1629  uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1630  uint8_t * extradata, int frame_size, int frame_bytes)
1631 {
1633  int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1634 
1635  /* codecs with an exact constant bits per sample */
1636  if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1637  return (frame_bytes * 8LL) / (bps * ch);
1638  bps = bits_per_coded_sample;
1639 
1640  /* codecs with a fixed packet duration */
1641  switch (id) {
1642  case AV_CODEC_ID_ADPCM_ADX: return 32;
1643  case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1644  case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1645  case AV_CODEC_ID_AMR_NB:
1646  case AV_CODEC_ID_EVRC:
1647  case AV_CODEC_ID_GSM:
1648  case AV_CODEC_ID_QCELP:
1649  case AV_CODEC_ID_RA_288: return 160;
1650  case AV_CODEC_ID_AMR_WB:
1651  case AV_CODEC_ID_GSM_MS: return 320;
1652  case AV_CODEC_ID_MP1: return 384;
1653  case AV_CODEC_ID_ATRAC1: return 512;
1654  case AV_CODEC_ID_ATRAC9:
1655  case AV_CODEC_ID_ATRAC3:
1656  if (framecount > INT_MAX/1024)
1657  return 0;
1658  return 1024 * framecount;
1659  case AV_CODEC_ID_ATRAC3P: return 2048;
1660  case AV_CODEC_ID_MP2:
1661  case AV_CODEC_ID_MUSEPACK7: return 1152;
1662  case AV_CODEC_ID_AC3: return 1536;
1663  }
1664 
1665  if (sr > 0) {
1666  /* calc from sample rate */
1667  if (id == AV_CODEC_ID_TTA)
1668  return 256 * sr / 245;
1669  else if (id == AV_CODEC_ID_DST)
1670  return 588 * sr / 44100;
1671  else if (id == AV_CODEC_ID_BINKAUDIO_DCT) {
1672  if (sr / 22050 > 22)
1673  return 0;
1674  return (480 << (sr / 22050));
1675  }
1676 
1677  if (id == AV_CODEC_ID_MP3)
1678  return sr <= 24000 ? 576 : 1152;
1679  }
1680 
1681  if (ba > 0) {
1682  /* calc from block_align */
1683  if (id == AV_CODEC_ID_SIPR) {
1684  switch (ba) {
1685  case 20: return 160;
1686  case 19: return 144;
1687  case 29: return 288;
1688  case 37: return 480;
1689  }
1690  } else if (id == AV_CODEC_ID_ILBC) {
1691  switch (ba) {
1692  case 38: return 160;
1693  case 50: return 240;
1694  }
1695  }
1696  }
1697 
1698  if (frame_bytes > 0) {
1699  /* calc from frame_bytes only */
1700  if (id == AV_CODEC_ID_TRUESPEECH)
1701  return 240 * (frame_bytes / 32);
1702  if (id == AV_CODEC_ID_NELLYMOSER)
1703  return 256 * (frame_bytes / 64);
1704  if (id == AV_CODEC_ID_RA_144)
1705  return 160 * (frame_bytes / 20);
1706 
1707  if (bps > 0) {
1708  /* calc from frame_bytes and bits_per_coded_sample */
1710  return frame_bytes * 8 / bps;
1711  }
1712 
1713  if (ch > 0 && ch < INT_MAX/16) {
1714  /* calc from frame_bytes and channels */
1715  switch (id) {
1716  case AV_CODEC_ID_FASTAUDIO:
1717  return frame_bytes / (40 * ch) * 256;
1719  return (frame_bytes - 4 * ch) / (128 * ch) * 256;
1720  case AV_CODEC_ID_ADPCM_AFC:
1721  return frame_bytes / (9 * ch) * 16;
1722  case AV_CODEC_ID_ADPCM_PSX:
1723  case AV_CODEC_ID_ADPCM_DTK:
1724  frame_bytes /= 16 * ch;
1725  if (frame_bytes > INT_MAX / 28)
1726  return 0;
1727  return frame_bytes * 28;
1728  case AV_CODEC_ID_ADPCM_4XM:
1731  return (frame_bytes - 4 * ch) * 2 / ch;
1733  return (frame_bytes - 4) * 2 / ch;
1735  return (frame_bytes - 8) * 2;
1736  case AV_CODEC_ID_ADPCM_THP:
1738  if (extradata)
1739  return frame_bytes * 14 / (8 * ch);
1740  break;
1741  case AV_CODEC_ID_ADPCM_XA:
1742  return (frame_bytes / 128) * 224 / ch;
1744  return (frame_bytes - 6 - ch) / ch;
1745  case AV_CODEC_ID_ROQ_DPCM:
1746  return (frame_bytes - 8) / ch;
1747  case AV_CODEC_ID_XAN_DPCM:
1748  return (frame_bytes - 2 * ch) / ch;
1749  case AV_CODEC_ID_MACE3:
1750  return 3 * frame_bytes / ch;
1751  case AV_CODEC_ID_MACE6:
1752  return 6 * frame_bytes / ch;
1753  case AV_CODEC_ID_PCM_LXF:
1754  return 2 * (frame_bytes / (5 * ch));
1755  case AV_CODEC_ID_IAC:
1756  case AV_CODEC_ID_IMC:
1757  return 4 * frame_bytes / ch;
1758  }
1759 
1760  if (tag) {
1761  /* calc from frame_bytes, channels, and codec_tag */
1762  if (id == AV_CODEC_ID_SOL_DPCM) {
1763  if (tag == 3)
1764  return frame_bytes / ch;
1765  else
1766  return frame_bytes * 2 / ch;
1767  }
1768  }
1769 
1770  if (ba > 0) {
1771  /* calc from frame_bytes, channels, and block_align */
1772  int blocks = frame_bytes / ba;
1773  switch (id) {
1775  if (bps < 2 || bps > 5)
1776  return 0;
1777  return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1779  return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1781  return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1783  return blocks * ((ba - 4 * ch) * 2 / ch);
1784  case AV_CODEC_ID_ADPCM_MS:
1785  return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1787  return blocks * (ba - 16) * 2 / ch;
1788  }
1789  }
1790 
1791  if (bps > 0) {
1792  /* calc from frame_bytes, channels, and bits_per_coded_sample */
1793  switch (id) {
1794  case AV_CODEC_ID_PCM_DVD:
1795  if(bps<4 || frame_bytes<3)
1796  return 0;
1797  return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1799  if(bps<4 || frame_bytes<4)
1800  return 0;
1801  return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1802  case AV_CODEC_ID_S302M:
1803  return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1804  }
1805  }
1806  }
1807  }
1808 
1809  /* Fall back on using frame_size */
1810  if (frame_size > 1 && frame_bytes)
1811  return frame_size;
1812 
1813  //For WMA we currently have no other means to calculate duration thus we
1814  //do it here by assuming CBR, which is true for all known cases.
1815  if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1816  if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1817  return (frame_bytes * 8LL * sr) / bitrate;
1818  }
1819 
1820  return 0;
1821 }
1822 
1823 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1824 {
1825  return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1826  avctx->channels, avctx->block_align,
1827  avctx->codec_tag, avctx->bits_per_coded_sample,
1828  avctx->bit_rate, avctx->extradata, avctx->frame_size,
1829  frame_bytes);
1830 }
1831 
1833 {
1834  return get_audio_frame_duration(par->codec_id, par->sample_rate,
1835  par->channels, par->block_align,
1836  par->codec_tag, par->bits_per_coded_sample,
1837  par->bit_rate, par->extradata, par->frame_size,
1838  frame_bytes);
1839 }
1840 
1841 #if !HAVE_THREADS
1843 {
1844  return -1;
1845 }
1846 
1847 #endif
1848 
1849 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1850 {
1851  unsigned int n = 0;
1852 
1853  while (v >= 0xff) {
1854  *s++ = 0xff;
1855  v -= 0xff;
1856  n++;
1857  }
1858  *s = v;
1859  n++;
1860  return n;
1861 }
1862 
1863 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1864 {
1865  int i;
1866  for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1867  return i;
1868 }
1869 
1871 {
1872  int i;
1873  if (!codec->hw_configs || index < 0)
1874  return NULL;
1875  for (i = 0; i <= index; i++)
1876  if (!codec->hw_configs[i])
1877  return NULL;
1878  return &codec->hw_configs[index]->public;
1879 }
1880 
1881 #if FF_API_USER_VISIBLE_AVHWACCEL
1883 {
1884  return NULL;
1885 }
1886 
1888 {
1889 }
1890 #endif
1891 
1892 #if FF_API_LOCKMGR
1893 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1894 {
1895  return 0;
1896 }
1897 #endif
1898 
1899 unsigned int avpriv_toupper4(unsigned int x)
1900 {
1901  return av_toupper(x & 0xFF) +
1902  (av_toupper((x >> 8) & 0xFF) << 8) +
1903  (av_toupper((x >> 16) & 0xFF) << 16) +
1904 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1905 }
1906 
1908 {
1909  int ret;
1910 
1911  dst->owner[0] = src->owner[0];
1912  dst->owner[1] = src->owner[1];
1913 
1914  ret = av_frame_ref(dst->f, src->f);
1915  if (ret < 0)
1916  return ret;
1917 
1918  av_assert0(!dst->progress);
1919 
1920  if (src->progress &&
1921  !(dst->progress = av_buffer_ref(src->progress))) {
1922  ff_thread_release_buffer(dst->owner[0], dst);
1923  return AVERROR(ENOMEM);
1924  }
1925 
1926  return 0;
1927 }
1928 
1929 #if !HAVE_THREADS
1930 
1932 {
1933  return ff_get_format(avctx, fmt);
1934 }
1935 
1937 {
1938  f->owner[0] = f->owner[1] = avctx;
1939  return ff_get_buffer(avctx, f->f, flags);
1940 }
1941 
1943 {
1944  if (f->f)
1945  av_frame_unref(f->f);
1946 }
1947 
1949 {
1950 }
1951 
1953 {
1954 }
1955 
1956 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1957 {
1958 }
1959 
1961 {
1962  return 1;
1963 }
1964 
1966 {
1967  return 0;
1968 }
1969 
1971 {
1972 }
1973 
1974 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1975 {
1976 }
1977 
1978 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
1979 {
1980 }
1981 
1982 #endif
1983 
1985 {
1986  return !!s->internal;
1987 }
1988 
1989 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
1990  const uint8_t *end,
1991  uint32_t *av_restrict state)
1992 {
1993  int i;
1994 
1995  av_assert0(p <= end);
1996  if (p >= end)
1997  return end;
1998 
1999  for (i = 0; i < 3; i++) {
2000  uint32_t tmp = *state << 8;
2001  *state = tmp + *(p++);
2002  if (tmp == 0x100 || p == end)
2003  return p;
2004  }
2005 
2006  while (p < end) {
2007  if (p[-1] > 1 ) p += 3;
2008  else if (p[-2] ) p += 2;
2009  else if (p[-3]|(p[-1]-1)) p++;
2010  else {
2011  p++;
2012  break;
2013  }
2014  }
2015 
2016  p = FFMIN(p, end) - 4;
2017  *state = AV_RB32(p);
2018 
2019  return p + 4;
2020 }
2021 
2023 {
2024  AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
2025  if (!props)
2026  return NULL;
2027 
2028  if (size)
2029  *size = sizeof(*props);
2030 
2031  props->vbv_delay = UINT64_MAX;
2032 
2033  return props;
2034 }
2035 
2037 {
2039  AVCPBProperties *props;
2040  size_t size;
2041  int i;
2042 
2043  for (i = 0; i < avctx->nb_coded_side_data; i++)
2045  return (AVCPBProperties *)avctx->coded_side_data[i].data;
2046 
2047  props = av_cpb_properties_alloc(&size);
2048  if (!props)
2049  return NULL;
2050 
2051  tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
2052  if (!tmp) {
2053  av_freep(&props);
2054  return NULL;
2055  }
2056 
2057  avctx->coded_side_data = tmp;
2058  avctx->nb_coded_side_data++;
2059 
2061  avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
2062  avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
2063 
2064  return props;
2065 }
2066 
2068 {
2069  av_freep(&par->extradata);
2070 
2071  memset(par, 0, sizeof(*par));
2072 
2074  par->codec_id = AV_CODEC_ID_NONE;
2075  par->format = -1;
2082  par->sample_aspect_ratio = (AVRational){ 0, 1 };
2083  par->profile = FF_PROFILE_UNKNOWN;
2084  par->level = FF_LEVEL_UNKNOWN;
2085 }
2086 
2088 {
2089  AVCodecParameters *par = av_mallocz(sizeof(*par));
2090 
2091  if (!par)
2092  return NULL;
2094  return par;
2095 }
2096 
2098 {
2099  AVCodecParameters *par = *ppar;
2100 
2101  if (!par)
2102  return;
2104 
2105  av_freep(ppar);
2106 }
2107 
2109 {
2111  memcpy(dst, src, sizeof(*dst));
2112 
2113  dst->extradata = NULL;
2114  dst->extradata_size = 0;
2115  if (src->extradata) {
2117  if (!dst->extradata)
2118  return AVERROR(ENOMEM);
2119  memcpy(dst->extradata, src->extradata, src->extradata_size);
2120  dst->extradata_size = src->extradata_size;
2121  }
2122 
2123  return 0;
2124 }
2125 
2127  const AVCodecContext *codec)
2128 {
2130 
2131  par->codec_type = codec->codec_type;
2132  par->codec_id = codec->codec_id;
2133  par->codec_tag = codec->codec_tag;
2134 
2135  par->bit_rate = codec->bit_rate;
2138  par->profile = codec->profile;
2139  par->level = codec->level;
2140 
2141  switch (par->codec_type) {
2142  case AVMEDIA_TYPE_VIDEO:
2143  par->format = codec->pix_fmt;
2144  par->width = codec->width;
2145  par->height = codec->height;
2146  par->field_order = codec->field_order;
2147  par->color_range = codec->color_range;
2148  par->color_primaries = codec->color_primaries;
2149  par->color_trc = codec->color_trc;
2150  par->color_space = codec->colorspace;
2153  par->video_delay = codec->has_b_frames;
2154  break;
2155  case AVMEDIA_TYPE_AUDIO:
2156  par->format = codec->sample_fmt;
2157  par->channel_layout = codec->channel_layout;
2158  par->channels = codec->channels;
2159  par->sample_rate = codec->sample_rate;
2160  par->block_align = codec->block_align;
2161  par->frame_size = codec->frame_size;
2162  par->initial_padding = codec->initial_padding;
2163  par->trailing_padding = codec->trailing_padding;
2164  par->seek_preroll = codec->seek_preroll;
2165  break;
2166  case AVMEDIA_TYPE_SUBTITLE:
2167  par->width = codec->width;
2168  par->height = codec->height;
2169  break;
2170  }
2171 
2172  if (codec->extradata) {
2174  if (!par->extradata)
2175  return AVERROR(ENOMEM);
2176  memcpy(par->extradata, codec->extradata, codec->extradata_size);
2177  par->extradata_size = codec->extradata_size;
2178  }
2179 
2180  return 0;
2181 }
2182 
2184  const AVCodecParameters *par)
2185 {
2186  codec->codec_type = par->codec_type;
2187  codec->codec_id = par->codec_id;
2188  codec->codec_tag = par->codec_tag;
2189 
2190  codec->bit_rate = par->bit_rate;
2193  codec->profile = par->profile;
2194  codec->level = par->level;
2195 
2196  switch (par->codec_type) {
2197  case AVMEDIA_TYPE_VIDEO:
2198  codec->pix_fmt = par->format;
2199  codec->width = par->width;
2200  codec->height = par->height;
2201  codec->field_order = par->field_order;
2202  codec->color_range = par->color_range;
2203  codec->color_primaries = par->color_primaries;
2204  codec->color_trc = par->color_trc;
2205  codec->colorspace = par->color_space;
2208  codec->has_b_frames = par->video_delay;
2209  break;
2210  case AVMEDIA_TYPE_AUDIO:
2211  codec->sample_fmt = par->format;
2212  codec->channel_layout = par->channel_layout;
2213  codec->channels = par->channels;
2214  codec->sample_rate = par->sample_rate;
2215  codec->block_align = par->block_align;
2216  codec->frame_size = par->frame_size;
2217  codec->delay =
2218  codec->initial_padding = par->initial_padding;
2219  codec->trailing_padding = par->trailing_padding;
2220  codec->seek_preroll = par->seek_preroll;
2221  break;
2222  case AVMEDIA_TYPE_SUBTITLE:
2223  codec->width = par->width;
2224  codec->height = par->height;
2225  break;
2226  }
2227 
2228  if (par->extradata) {
2229  av_freep(&codec->extradata);
2231  if (!codec->extradata)
2232  return AVERROR(ENOMEM);
2233  memcpy(codec->extradata, par->extradata, par->extradata_size);
2234  codec->extradata_size = par->extradata_size;
2235  }
2236 
2237  return 0;
2238 }
2239 
2240 static unsigned bcd2uint(uint8_t bcd)
2241 {
2242  unsigned low = bcd & 0xf;
2243  unsigned high = bcd >> 4;
2244  if (low > 9 || high > 9)
2245  return 0;
2246  return low + 10*high;
2247 }
2248 
2249 int ff_alloc_timecode_sei(const AVFrame *frame, AVRational rate, size_t prefix_len,
2250  void **data, size_t *sei_size)
2251 {
2252  AVFrameSideData *sd = NULL;
2253  uint8_t *sei_data;
2254  PutBitContext pb;
2255  uint32_t *tc;
2256  int m;
2257 
2258  if (frame)
2260 
2261  if (!sd) {
2262  *data = NULL;
2263  return 0;
2264  }
2265  tc = (uint32_t*)sd->data;
2266  m = tc[0] & 3;
2267 
2268  *sei_size = sizeof(uint32_t) * 4;
2269  *data = av_mallocz(*sei_size + prefix_len);
2270  if (!*data)
2271  return AVERROR(ENOMEM);
2272  sei_data = (uint8_t*)*data + prefix_len;
2273 
2274  init_put_bits(&pb, sei_data, *sei_size);
2275  put_bits(&pb, 2, m); // num_clock_ts
2276 
2277  for (int j = 1; j <= m; j++) {
2278  uint32_t tcsmpte = tc[j];
2279  unsigned hh = bcd2uint(tcsmpte & 0x3f); // 6-bit hours
2280  unsigned mm = bcd2uint(tcsmpte>>8 & 0x7f); // 7-bit minutes
2281  unsigned ss = bcd2uint(tcsmpte>>16 & 0x7f); // 7-bit seconds
2282  unsigned ff = bcd2uint(tcsmpte>>24 & 0x3f); // 6-bit frames
2283  unsigned drop = tcsmpte & 1<<30 && !0; // 1-bit drop if not arbitrary bit
2284 
2285  /* Calculate frame number of HEVC by SMPTE ST 12-1:2014 Sec 12.2 if rate > 30FPS */
2286  if (av_cmp_q(rate, (AVRational) {30, 1}) == 1) {
2287  unsigned pc;
2288  ff *= 2;
2289  if (av_cmp_q(rate, (AVRational) {50, 1}) == 0)
2290  pc = !!(tcsmpte & 1 << 7);
2291  else
2292  pc = !!(tcsmpte & 1 << 23);
2293  ff = (ff + pc) & 0x7f;
2294  }
2295 
2296  put_bits(&pb, 1, 1); // clock_timestamp_flag
2297  put_bits(&pb, 1, 1); // units_field_based_flag
2298  put_bits(&pb, 5, 0); // counting_type
2299  put_bits(&pb, 1, 1); // full_timestamp_flag
2300  put_bits(&pb, 1, 0); // discontinuity_flag
2301  put_bits(&pb, 1, drop);
2302  put_bits(&pb, 9, ff);
2303  put_bits(&pb, 6, ss);
2304  put_bits(&pb, 6, mm);
2305  put_bits(&pb, 5, hh);
2306  put_bits(&pb, 5, 0);
2307  }
2308  flush_put_bits(&pb);
2309 
2310  return 0;
2311 }
2312 
2314 {
2315  AVRational framerate = avctx->framerate;
2316  int bits_per_coded_sample = avctx->bits_per_coded_sample;
2317  int64_t bitrate;
2318 
2319  if (!(framerate.num && framerate.den))
2320  framerate = av_inv_q(avctx->time_base);
2321  if (!(framerate.num && framerate.den))
2322  return 0;
2323 
2324  if (!bits_per_coded_sample) {
2326  bits_per_coded_sample = av_get_bits_per_pixel(desc);
2327  }
2328  bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2329  framerate.num / framerate.den;
2330 
2331  return bitrate;
2332 }
2333 
2334 int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
2335  const int * array_valid_values, int default_value)
2336 {
2337  int i = 0, ref_val;
2338 
2339  while (1) {
2340  ref_val = array_valid_values[i];
2341  if (ref_val == INT_MAX)
2342  break;
2343  if (val == ref_val)
2344  return val;
2345  i++;
2346  }
2347  /* val is not a valid value */
2348  av_log(ctx, AV_LOG_DEBUG,
2349  "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
2350  return default_value;
2351 }
int64_t ff_guess_coded_bitrate(AVCodecContext *avctx)
Get an estimated video bitrate based on frame size, frame rate and coded bits per pixel...
Definition: utils.c:2313
#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:97
#define FF_COMPLIANCE_EXPERIMENTAL
Allow nonstandardized experimental things.
Definition: avcodec.h:1601
packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
Definition: pixfmt.h:81
AVCodecHWConfig public
This is the structure which will be returned to the user by avcodec_get_hw_config().
Definition: hwconfig.h:34
int nb_draining_errors
Definition: internal.h:202
enum AVChromaLocation chroma_location
Definition: codec_par.h:150
float, planar
Definition: samplefmt.h:69
#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:2111
#define NULL
Definition: coverity.c:32
int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
Select the (possibly hardware accelerated) pixel format.
Definition: decode.c:1304
const struct AVCodec * codec
Definition: avcodec.h:540
planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:166
AVRational framerate
Definition: avcodec.h:2062
enum AVFieldOrder field_order
Video only.
Definition: codec_par.h:141
static int64_t get_bit_rate(AVCodecContext *ctx)
Definition: utils.c:502
const AVCodecDescriptor * codec_descriptor
AVCodecDescriptor.
Definition: avcodec.h:2083
planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
Definition: pixfmt.h:275
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:252
enum AVColorTransferCharacteristic color_trc
Definition: codec_par.h:148
int(* receive_packet)(struct AVCodecContext *avctx, struct AVPacket *avpkt)
Encode API with decoupled frame/packet dataflow.
Definition: codec.h:291
#define AV_NUM_DATA_POINTERS
Definition: frame.h:315
static int shift(int a, int b)
Definition: sonic.c:82
planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:245
#define FF_SUB_CHARENC_MODE_AUTOMATIC
libavcodec will select the mode itself
Definition: avcodec.h:2110
static AVMutex mutex
Definition: log.c:44
int64_t pts_correction_num_faulty_dts
Number of incorrect PTS values so far.
Definition: avcodec.h:2091
void av_buffer_unref(AVBufferRef **buf)
Free a given reference and automatically free the buffer if there are no more references to it...
Definition: buffer.c:125
unsigned int fourcc
Definition: raw.h:36
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2573
This structure describes decoded (raw) audio or video data.
Definition: frame.h:314
int av_codec_is_encoder(const AVCodec *codec)
Definition: utils.c:96
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:100
planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:249
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:159
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Copy the contents of src to dst.
Definition: utils.c:2108
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:719
AVPacket * last_pkt_props
Properties (timestamps+side data) extracted from the last packet passed for decoding.
Definition: internal.h:149
const char * desc
Definition: libsvtav1.c:79
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
misc image utilities
static void put_bits(Jpeg2000EncoderContext *s, int val, int n)
put n times val bit
Definition: j2kenc.c:218
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:200
AVFrame * f
Definition: thread.h:35
int64_t bit_rate
the average bitrate
Definition: avcodec.h:581
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), 12b alpha, little-endian ...
Definition: pixfmt.h:346
AVFrame * to_free
Definition: internal.h:135
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
uint8_t pi<< 24) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_U8,(uint64_t)((*(const uint8_t *) pi-0x80U))<< 56) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16,(*(const int16_t *) pi >>8)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_S16,*(const int16_t *) pi *(1<< 16)) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S16,(uint64_t)(*(const int16_t *) pi)<< 48) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16,*(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16,*(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32,(*(const int32_t *) pi >>24)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S32,(uint64_t)(*(const int32_t *) pi)<< 32) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32,*(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32,*(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S64,(*(const int64_t *) pi >>56)+0x80) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S64,*(const int64_t *) pi *(1.0f/(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64,*(const int64_t *) pi *(1.0/(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(const float *) pi *(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(const double *) pi *(UINT64_C(1)<< 63)))#define FMT_PAIR_FUNC(out, in) static conv_func_type *const fmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB *AV_SAMPLE_FMT_NB]={FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64),};static void cpy1(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, len);}static void cpy2(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 2 *len);}static void cpy4(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 4 *len);}static void cpy8(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 8 *len);}AudioConvert *swri_audio_convert_alloc(enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, const int *ch_map, int flags){AudioConvert *ctx;conv_func_type *f=fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt)+AV_SAMPLE_FMT_NB *av_get_packed_sample_fmt(in_fmt)];if(!f) return NULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) return NULL;if(channels==1){in_fmt=av_get_planar_sample_fmt(in_fmt);out_fmt=av_get_planar_sample_fmt(out_fmt);}ctx->channels=channels;ctx->conv_f=f;ctx->ch_map=ch_map;if(in_fmt==AV_SAMPLE_FMT_U8||in_fmt==AV_SAMPLE_FMT_U8P) memset(ctx->silence, 0x80, sizeof(ctx->silence));if(out_fmt==in_fmt &&!ch_map){switch(av_get_bytes_per_sample(in_fmt)){case 1:ctx->simd_f=cpy1;break;case 2:ctx->simd_f=cpy2;break;case 4:ctx->simd_f=cpy4;break;case 8:ctx->simd_f=cpy8;break;}}if(HAVE_X86ASM &&1) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);return ctx;}void swri_audio_convert_free(AudioConvert **ctx){av_freep(ctx);}int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len){int ch;int off=0;const int os=(out->planar?1:out->ch_count)*out->bps;unsigned misaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask){int planes=in->planar?in->ch_count:1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;}if(ctx->out_simd_align_mask){int planes=out->planar?out->ch_count:1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;}if(ctx->simd_f &&!ctx->ch_map &&!misaligned){off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){if(out->planar==in->planar){int planes=out->planar?out->ch_count:1;for(ch=0;ch< planes;ch++){ctx->simd_f(out->ch+ch,(const uint8_t **) in->ch+ch, off *(out-> planar
Definition: audioconvert.c:56
const char * g
Definition: vf_curves.c:117
#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:162
int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
Return the number of bits per pixel used by the pixel format described by pixdesc.
Definition: pixdesc.c:2525
int(* receive_frame)(struct AVCodecContext *avctx, struct AVFrame *frame)
Decode API with decoupled packet/frame dataflow.
Definition: codec.h:298
AVRational sample_aspect_ratio
Video only.
Definition: codec_par.h:136
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:1439
void(* flush)(struct AVCodecContext *)
Flush buffers.
Definition: codec.h:303
#define AV_CODEC_CAP_ENCODER_FLUSH
This encoder can be flushed using avcodec_flush_buffers().
Definition: codec.h:171
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:250
void av_opt_set_defaults(void *s)
Set the values of all AVOption fields to their default values.
Definition: opt.c:1358
const char * avcodec_configuration(void)
Return the libavcodec build-time configuration.
Definition: utils.c:1511
uint32_t fourcc
Definition: vaapi_decode.c:239
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:1166
int ff_decode_bsfs_init(AVCodecContext *avctx)
Called during avcodec_open2() to initialize avctx->internal->bsf.
Definition: decode.c:168
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: codec_par.h:60
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
int num
Numerator.
Definition: rational.h:59
Timecode which conforms to SMPTE ST 12-1.
Definition: frame.h:168
static int ff_mutex_lock(AVMutex *mutex)
Definition: thread.h:168
#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:2109
static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
Definition: utils.c:533
int av_codec_is_decoder(const AVCodec *codec)
Definition: utils.c:101
const char * avcodec_license(void)
Return the libavcodec license.
Definition: utils.c:1516
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:910
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition: pixfmt.h:189
double, planar
Definition: samplefmt.h:70
enum AVMediaType codec_type
Definition: rtp.c:37
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:36
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:741
#define tc
Definition: regdef.h:69
enum AVPixelFormat pix_fmt
Definition: raw.h:35
int av_dict_copy(AVDictionary **dst, const AVDictionary *src, int flags)
Copy entries from one AVDictionary struct into another.
Definition: dict.c:217
enum AVPixelFormat format
The pixel format identifying the underlying HW surface type.
Definition: hwcontext.h:209
unsigned num_rects
Definition: avcodec.h:2679
int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec)
Definition: utils.c:498
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:72
planar GBR 4:4:4 36bpp, little-endian
Definition: pixfmt.h:255
The following 12 formats have the disadvantage of needing 1 format for each bit depth.
Definition: pixfmt.h:156
#define AV_CODEC_CAP_EXPERIMENTAL
Codec is experimental and is thus avoided in favor of non experimental encoders.
Definition: codec.h:98
mpegvideo header.
enum AVMediaType type
Definition: codec.h:203
#define AV_CODEC_CAP_CHANNEL_CONF
Codec should fill in channel configuration and samplerate instead of container.
Definition: codec.h:102
#define FF_ARRAY_ELEMS(a)
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:237
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:1742
enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
Wrapper around get_format() for frame-multithreaded codecs.
Definition: utils.c:1931
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:1893
int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
Converts AVChromaLocation to swscale x/y chroma position.
Definition: utils.c:355
#define AV_CODEC_CAP_AUTO_THREADS
Codec supports avctx->thread_count == 0 (auto).
Definition: codec.h:118
const struct AVHWAccel * hwaccel
Hardware accelerator in use.
Definition: avcodec.h:1675
void av_bsf_flush(AVBSFContext *ctx)
Reset the internal bitstream filter state.
Definition: bsf.c:188
int trailing_padding
Audio only.
Definition: codec_par.h:196
int profile
profile
Definition: avcodec.h:1849
planar GBR 4:4:4 36bpp, big-endian
Definition: pixfmt.h:254
AVCodec.
Definition: codec.h:190
planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:131
int framerate
Definition: h264_levels.c:65
int block_align
number of bytes per packet if constant and known or 0 Used by some WAV based audio codecs...
Definition: avcodec.h:1228
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: codec_par.h:52
AVLockOp
Lock operation used by lockmgr.
Definition: avcodec.h:4071
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:106
char * text
0 terminated plain UTF-8 text
Definition: avcodec.h:2663
enum AVColorSpace color_space
Definition: codec_par.h:149
const char * av_color_space_name(enum AVColorSpace space)
Definition: pixdesc.c:2966
Macro definitions for various function/variable attributes.
int frame_size
Audio only.
Definition: codec_par.h:181
static AVMutex codec_mutex
Definition: utils.c:70
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:654
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:738
AVSubtitleRect ** rects
Definition: avcodec.h:2680
int(* uninit)(AVCodecContext *avctx)
Uninitialize the hwaccel private data.
Definition: avcodec.h:2529
void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
Definition: utils.c:1974
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:378
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:495
planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), little-endian ...
Definition: pixfmt.h:179
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:340
#define FF_LEVEL_UNKNOWN
Definition: avcodec.h:1976
#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:216
Public dictionary API.
planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
Definition: pixfmt.h:190
static double cb(void *priv, double x, double y)
Definition: vf_geq.c:215
#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:101
int export_side_data
Bit set of AV_CODEC_EXPORT_DATA_* flags, which affects the kind of metadata exported in frame...
Definition: avcodec.h:2337
void av_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
Definition: avpacket.c:64
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), 12b alpha, little-endian ...
Definition: pixfmt.h:344
enum AVSampleFormat sample_fmt
audio sample format
Definition: avcodec.h:1199
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_cold
Definition: attributes.h:88
AV_SAMPLE_FMT_U8
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:190
Opaque data information usually continuous.
Definition: avutil.h:203
int width
Video only.
Definition: codec_par.h:126
#define AV_CODEC_EXPORT_DATA_MVS
Export motion vectors through frame side data.
Definition: avcodec.h:403
8 bits with AV_PIX_FMT_RGB32 palette
Definition: pixfmt.h:77
AVOptions.
#define f(width, name)
Definition: cbs_vp9.c:255
const char * av_color_range_name(enum AVColorRange range)
Definition: pixdesc.c:2899
void * thread_ctx
Definition: internal.h:140
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
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:136
int trailing_padding
Audio only.
Definition: avcodec.h:2231
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:443
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:251
AVCodecParameters * avcodec_parameters_alloc(void)
Allocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0).
Definition: utils.c:2087
#define FF_CODEC_PROPERTY_LOSSLESS
Definition: avcodec.h:2175
#define LIBAVCODEC_VERSION_INT
Definition: version.h:34
int(* encode2)(struct AVCodecContext *avctx, struct AVPacket *avpkt, const struct AVFrame *frame, int *got_packet_ptr)
Encode data to an AVPacket.
Definition: codec.h:282
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:632
#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:91
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:2183
planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition: pixfmt.h:191
AVCPBProperties * ff_add_cpb_side_data(AVCodecContext *avctx)
Add a CPB properties side data to an encoding context.
Definition: utils.c:2036
Public header for CRC hash function implementation.
void * frame_thread_encoder
Definition: internal.h:159
int initial_padding
Audio only.
Definition: codec_par.h:189
Structure to hold side data for an AVFrame.
Definition: frame.h:220
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:322
planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), big-endian
Definition: pixfmt.h:276
planar GBR 4:4:4 48bpp, big-endian
Definition: pixfmt.h:174
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:100
uint32_t tag
Definition: movenc.c:1597
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:194
void av_memcpy_backptr(uint8_t *dst, int back, int cnt)
Overlapping memcpy() implementation.
Definition: mem.c:428
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:210
uint8_t * data
Definition: packet.h:307
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:1628
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
Definition: avcodec.h:1749
int av_codec_get_max_lowres(const AVCodec *codec)
Definition: utils.c:492
enum AVSampleFormat av_get_planar_sample_fmt(enum AVSampleFormat sample_fmt)
Get the planar alternative form of the given sample format.
Definition: samplefmt.c:84
static unsigned bcd2uint(uint8_t bcd)
Definition: utils.c:2240
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:1863
ptrdiff_t size
Definition: opengl_enc.c:100
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
Definition: rational.c:35
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
Definition: avcodec.h:1735
planar YUV 4:4:0,24bpp, (1 Cr & Cb sample per 1x2 Y samples), big-endian
Definition: pixfmt.h:278
int ff_set_sar(AVCodecContext *avctx, AVRational sar)
Check that the provided sample aspect ratio is valid and set it on the codec context.
Definition: utils.c:121
#define AV_CODEC_FLAG_GRAY
Only decode/encode grayscale.
Definition: avcodec.h:308
channels
Definition: aptx.h:33
signed 32 bits
Definition: samplefmt.h:62
static struct @321 state
void * av_realloc_array(void *ptr, size_t nmemb, size_t size)
Definition: mem.c:198
AVCPBProperties * av_cpb_properties_alloc(size_t *size)
Allocate a CPB properties structure and initialize its fields to default values.
Definition: utils.c:2022
enum AVChromaLocation chroma_sample_location
This defines the location of chroma samples.
Definition: avcodec.h:1173
static void codec_parameters_reset(AVCodecParameters *par)
Definition: utils.c:2067
#define FFALIGN(x, a)
Definition: macros.h:48
uint64_t channel_layout
Audio only.
Definition: codec_par.h:162
#define av_log(a,...)
int av_sample_fmt_is_planar(enum AVSampleFormat sample_fmt)
Check if the sample format is planar.
Definition: samplefmt.c:112
void avcodec_parameters_free(AVCodecParameters **ppar)
Free an AVCodecParameters instance and everything associated with it and write NULL to the supplied p...
Definition: utils.c:2097
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
Definition: codec_par.h:89
#define FF_COMPLIANCE_UNOFFICIAL
Allow unofficial extensions.
Definition: avcodec.h:1600
void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, int linesize_align[AV_NUM_DATA_POINTERS])
Modify width and height values so that they will result in a memory buffer that is acceptable for the...
Definition: utils.c:156
static void * av_x_if_null(const void *p, const void *x)
Return x default pointer in case p is NULL.
Definition: avutil.h:308
void av_register_hwaccel(AVHWAccel *hwaccel)
Register the hardware accelerator hwaccel.
Definition: utils.c:1887
planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:157
AVPacketList * pkt_props_tail
Definition: internal.h:151
Libavcodec version macros.
#define src
Definition: vp8dsp.c:255
av_cold int avcodec_close(AVCodecContext *avctx)
Close a given AVCodecContext and free all the data associated with it (but not the AVCodecContext its...
Definition: utils.c:1167
AVBSFContext * bsf
Definition: internal.h:143
enum AVCodecID id
Definition: codec.h:204
const uint64_t * channel_layouts
array of support channel layouts, or NULL if unknown. array is terminated by 0
Definition: codec.h:214
planar GBR 4:4:4 27bpp, big-endian
Definition: pixfmt.h:170
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:165
const char * av_chroma_location_name(enum AVChromaLocation location)
Definition: pixdesc.c:2990
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:176
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: codec_id.h:46
unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
Definition: utils.c:487
int width
Definition: frame.h:372
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:194
int has_b_frames
Size of the frame reordering buffer in the decoder.
Definition: avcodec.h:821
int av_get_bits_per_sample(enum AVCodecID codec_id)
Return codec bits per sample.
Definition: utils.c:1610
#define AVMutex
Definition: thread.h:164
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
const struct AVCodecHWConfigInternal *const * hw_configs
Array of pointers to hardware configurations supported by the codec, or NULL if no hardware supported...
Definition: codec.h:323
int ff_int_from_list_or_default(void *ctx, const char *val_name, int val, const int *array_valid_values, int default_value)
Check if a value is in the list.
Definition: utils.c:2334
#define MAKE_ACCESSORS(str, name, type, field)
Definition: internal.h:90
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:136
unsigned int avpriv_toupper4(unsigned int x)
Definition: utils.c:1899
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:203
int qmax
maximum quantizer
Definition: avcodec.h:1382
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this field
int64_t pts_correction_last_pts
Number of incorrect DTS values so far.
Definition: avcodec.h:2092
AVFrame * in_frame
Definition: internal.h:116
int active_thread_type
Which multithreading methods are in use by the codec.
Definition: avcodec.h:1787
enum AVColorPrimaries color_primaries
Definition: codec_par.h:147
int avcodec_is_open(AVCodecContext *s)
Definition: utils.c:1984
int video_delay
Video only.
Definition: codec_par.h:155
const char * r
Definition: vf_curves.c:116
int av_match_list(const char *name, const char *list, char separator)
Check if a name is in a list.
Definition: avstring.c:451
AVFrame * buffer_frame
Definition: internal.h:182
int capabilities
Codec capabilities.
Definition: codec.h:209
int initial_padding
Audio only.
Definition: avcodec.h:2053
unsigned int pos
Definition: spdifenc.c:410
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:215
int ff_thread_init(AVCodecContext *s)
Definition: utils.c:1842
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values. ...
Definition: dict.c:203
preferred ID for decoding MPEG audio layer 1, 2 or 3
Definition: codec_id.h:423
#define av_fourcc2str(fourcc)
Definition: avutil.h:348
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), big-endian
Definition: pixfmt.h:182
enum AVMediaType codec_type
General type of the encoded data.
Definition: codec_par.h:56
const char * arg
Definition: jacosubdec.c:66
planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:161
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:611
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
Definition: allcodecs.c:938
simple assert() macros that are a bit more flexible than ISO C assert().
planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:248
int64_t av_gcd(int64_t a, int64_t b)
Compute the greatest common divisor of two integer operands.
Definition: mathematics.c:37
enum AVPacketSideDataType type
Definition: packet.h:309
int av_log_get_level(void)
Get the current log level.
Definition: log.c:435
const char * name
Name of the codec implementation.
Definition: codec.h:197
planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:134
const char * av_get_sample_fmt_name(enum AVSampleFormat sample_fmt)
Return the name of sample_fmt, or NULL if sample_fmt is not recognized.
Definition: samplefmt.c:49
int64_t max_pixels
The number of pixels per image to maximally accept.
Definition: avcodec.h:2239
const struct AVProfile * profiles
If non-NULL, an array of profiles recognized for this codec.
Definition: codec_desc.h:65
int ff_alloc_timecode_sei(const AVFrame *frame, AVRational rate, size_t prefix_len, void **data, size_t *sei_size)
Check AVFrame for S12M timecode side data and allocate and fill TC SEI message with timecode info...
Definition: utils.c:2249
GLsizei count
Definition: opengl_enc.c:108
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), little-endian
Definition: pixfmt.h:183
void ff_thread_free(AVCodecContext *avctx)
Definition: pthread.c:82
#define FFMAX(a, b)
Definition: common.h:103
int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
This function is the same as av_get_audio_frame_duration(), except it works with AVCodecParameters in...
Definition: utils.c:1832
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: codec.h:106
const char av_codec_ffversion[]
Definition: utils.c:68
static int ff_mutex_unlock(AVMutex *mutex)
Definition: thread.h:169
const char * av_color_primaries_name(enum AVColorPrimaries primaries)
Definition: pixdesc.c:2918
reference-counted frame API
uint64_t channel_layout
Audio channel layout.
Definition: avcodec.h:1242
int extradata_size
Size of the extradata content in bytes.
Definition: codec_par.h:78
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
Definition: pixfmt.h:184
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
int rc_buffer_size
decoder bitstream buffer size
Definition: avcodec.h:1396
int props
Codec properties, a combination of AV_CODEC_PROP_* flags.
Definition: codec_desc.h:54
int ff_frame_thread_encoder_init(AVCodecContext *avctx, AVDictionary *options)
common internal API header
#define FF_MAX_EXTRADATA_SIZE
Maximum size in bytes of extradata.
Definition: internal.h:235
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:106
int refs
number of reference frames
Definition: avcodec.h:1119
planar GBR 4:4:4:4 48bpp, big-endian
Definition: pixfmt.h:287
int block_align
Audio only.
Definition: codec_par.h:177
#define ss(width, name, subs,...)
Definition: cbs_vp9.c:261
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
#define b
Definition: input.c:41
#define AV_MUTEX_INITIALIZER
Definition: thread.h:165
audio channel layout utility functions
enum AVPixelFormat * pix_fmts
array of supported pixel formats, or NULL if unknown, array is terminated by -1
Definition: codec.h:211
#define FF_THREAD_FRAME
Decode more than one frame at once.
Definition: avcodec.h:1779
#define FFMIN(a, b)
Definition: common.h:105
AVPacketSideData * coded_side_data
Additional data associated with the entire coded stream.
Definition: avcodec.h:2184
Raw Video Codec.
signed 32 bits, planar
Definition: samplefmt.h:68
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
Return codec bits per sample.
Definition: utils.c:1522
AVFrame * compat_decode_frame
Definition: internal.h:193
void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
Definition: utils.c:1978
int width
picture width / height.
Definition: avcodec.h:704
static void ff_unlock_avcodec(const AVCodec *codec)
Definition: utils.c:539
AVBufferRef * hw_frames_ctx
A reference to the AVHWFramesContext describing the input (for encoding) or output (decoding) frames...
Definition: avcodec.h:2209
#define FF_PROFILE_UNKNOWN
Definition: avcodec.h:1850
int priv_data_size
Definition: codec.h:238
int profile
Definition: codec.h:177
AVPacket * in_pkt
Definition: internal.h:112
AVFormatContext * ctx
Definition: movenc.c:48
#define AV_CODEC_FLAG_PASS1
Use internal 2pass ratecontrol in first pass mode.
Definition: avcodec.h:296
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:1145
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:188
packed YUV 4:2:2, 16bpp, Y0 Cr Y1 Cb
Definition: pixfmt.h:210
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
#define s(width, name)
Definition: cbs_vp9.c:257
int level
level
Definition: avcodec.h:1975
void ff_thread_finish_setup(AVCodecContext *avctx)
If the codec defines update_thread_context(), call this when they are ready for the next thread to st...
Definition: utils.c:1948
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), big-endian
Definition: pixfmt.h:180
const AVProfile * profiles
array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN} ...
Definition: codec.h:217
unsigned 8 bits, planar
Definition: samplefmt.h:66
int ticks_per_frame
For some codecs, the time base is closer to the field rate than the frame rate.
Definition: avcodec.h:663
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:69
planar YUV 4:2:0,18bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:243
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:158
enum AVCodecID codec_id
Definition: vaapi_decode.c:369
enum AVColorRange color_range
Video only.
Definition: codec_par.h:146
Usually treated as AVMEDIA_TYPE_DATA.
Definition: avutil.h:200
Opaque data information usually sparse.
Definition: avutil.h:205
const char * av_get_colorspace_name(enum AVColorSpace val)
Get the name of a colorspace.
Definition: frame.c:123
DecodeSimpleContext ds
Definition: internal.h:142
enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags, unsigned int fourcc)
Definition: utils.c:469
char * sub_charenc
DTS of the last frame.
Definition: avcodec.h:2100
planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:167
uint8_t * data[4]
data+linesize for the bitmap of this subtitle.
Definition: avcodec.h:2658
int draining
checks API usage: after codec draining, flush is required to resume operation
Definition: internal.h:176
#define AVERROR_EXPERIMENTAL
Requested feature is flagged experimental. Set strict_std_compliance if you really want to use it...
Definition: error.h:72
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:1768
Full range content.
Definition: pixfmt.h:586
int sub_charenc_mode
Subtitles character encoding mode.
Definition: avcodec.h:2108
if(ret)
void av_get_channel_layout_string(char *buf, int buf_size, int nb_channels, uint64_t channel_layout)
Return a description of a channel layout.
planar GBR 4:4:4:4 48bpp, little-endian
Definition: pixfmt.h:288
void avcodec_flush_buffers(AVCodecContext *avctx)
Reset the internal codec state / flush internal buffers.
Definition: utils.c:1093
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:387
AVBufferRef * progress
Definition: thread.h:39
const char * av_get_profile_name(const AVCodec *codec, int profile)
Return a name for the specified profile, if available.
Definition: utils.c:1473
int frame_size
Number of samples per channel in an audio frame.
Definition: avcodec.h:1211
This structure describes the bitrate properties of an encoded bitstream.
Definition: avcodec.h:453
AVPacketList * pkt_props
Definition: internal.h:150
int(* decode)(struct AVCodecContext *, void *outdata, int *outdata_size, struct AVPacket *avpkt)
Definition: codec.h:284
packed RGB 3:3:2, 8bpp, (msb)2B 3G 3R(lsb)
Definition: pixfmt.h:83
static int width
Definition: utils.c:158
planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:132
int frame_size
Definition: mxfenc.c:2205
AVHWAccel * av_hwaccel_next(const AVHWAccel *hwaccel)
If hwaccel is NULL, returns the first registered hardware accelerator, if hwaccel is non-NULL...
Definition: utils.c:1882
int avcodec_default_get_buffer2(AVCodecContext *s, AVFrame *frame, int flags)
The default callback for AVCodecContext.get_buffer2().
Definition: decode.c:1673
Libavcodec external API header.
enum AVMediaType codec_type
Definition: avcodec.h:539
AVSampleFormat
Audio sample formats.
Definition: samplefmt.h:58
EncodeSimpleContext es
Definition: internal.h:161
enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
Return the PCM codec associated with a sample format.
Definition: utils.c:1588
enum AVCodecID codec_id
Definition: avcodec.h:541
int seek_preroll
Number of samples to skip after a discontinuity.
Definition: avcodec.h:2133
int av_opt_set_dict(void *obj, AVDictionary **options)
Set all the options from a given dictionary on an object.
Definition: opt.c:1656
int sample_rate
samples per second
Definition: avcodec.h:1191
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:345
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:177
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
const AVCodecHWConfig * avcodec_get_hw_config(const AVCodec *codec, int index)
Retrieve supported hardware configurations for a codec.
Definition: utils.c:1870
planar GBR 4:4:4 30bpp, big-endian
Definition: pixfmt.h:172
main external API structure.
Definition: avcodec.h:531
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:606
int skip_samples_multiplier
Definition: internal.h:199
planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
Definition: pixfmt.h:192
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it be(in the first position) for now.Options-------Then comes the options array.This is what will define the user accessible options.For example
uint8_t * data
The data buffer.
Definition: buffer.h:89
int qmin
minimum quantizer
Definition: avcodec.h:1375
void avsubtitle_free(AVSubtitle *sub)
Free all allocated data in the given subtitle struct.
Definition: utils.c:1148
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> (&#39;D&#39;<<24) + (&#39;C&#39;<<16) + (&#39;B&#39;<<8) + &#39;A&#39;).
Definition: avcodec.h:556
packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
Definition: pixfmt.h:67
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
Definition: decode.c:1884
static void encode(AVCodecContext *ctx, AVFrame *frame, AVPacket *pkt, FILE *output)
Definition: encode_audio.c:95
uint8_t * data
Definition: frame.h:222
planar YUV 4:4:0,24bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
Definition: pixfmt.h:277
#define AV_CODEC_PROP_BITMAP_SUB
Subtitle codec is bitmap based Decoded AVSubtitle data can be read from the AVSubtitleRect->pict fiel...
Definition: codec_desc.h:97
planar GBR 4:4:4 42bpp, little-endian
Definition: pixfmt.h:257
int extradata_size
Definition: avcodec.h:633
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
Encode extradata length to a buffer.
Definition: utils.c:1849
int nb_coded_side_data
Definition: avcodec.h:2185
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
Definition: pixfmt.h:193
AVCodecContext * owner[2]
Definition: thread.h:36
int coded_height
Definition: avcodec.h:719
int(* func)(AVBPrint *dst, const char *in, const char *arg)
Definition: jacosubdec.c:67
Describe the class of an AVClass context structure.
Definition: log.h:67
AVPacket * compat_encode_packet
Definition: internal.h:194
#define FF_CODEC_PROPERTY_CLOSED_CAPTIONS
Definition: avcodec.h:2176
int(* get_buffer2)(struct AVCodecContext *s, AVFrame *frame, int flags)
This callback is called at the beginning of each frame to get data buffer(s) for it.
Definition: avcodec.h:1346
int(* init)(struct AVCodecContext *)
Definition: codec.h:269
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition: pixfmt.h:195
AVFrameSideData * av_frame_new_side_data(AVFrame *frame, enum AVFrameSideDataType type, int size)
Add a new side data to a frame.
Definition: frame.c:726
static av_const int av_toupper(int c)
Locale-independent conversion of ASCII characters to uppercase.
Definition: avstring.h:236
Y , 16bpp, big-endian.
Definition: pixfmt.h:97
int index
Definition: gxfenc.c:89
int av_samples_get_buffer_size(int *linesize, int nb_channels, int nb_samples, enum AVSampleFormat sample_fmt, int align)
Get the required buffer size for the given audio parameters.
Definition: samplefmt.c:119
enum AVColorSpace colorspace
YUV colorspace type.
Definition: avcodec.h:1159
Rational number (pair of numerator and denominator).
Definition: rational.h:58
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:1152
void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
Wrapper around release_buffer() frame-for multithreaded codecs.
Definition: utils.c:1942
const char * name
short name for the profile
Definition: codec.h:178
int avcodec_parameters_from_context(AVCodecParameters *par, const AVCodecContext *codec)
Fill the parameters struct based on the values from the supplied codec context.
Definition: utils.c:2126
This struct describes a set or pool of "hardware" frames (i.e.
Definition: hwcontext.h:124
planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:244
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), 12b alpha, big-endian ...
Definition: pixfmt.h:345
size_t av_strlcatf(char *dst, size_t size, const char *fmt,...)
Definition: avstring.c:101
planar GBR 4:4:4 42bpp, big-endian
Definition: pixfmt.h:256
char * codec_whitelist
&#39;,&#39; separated list of allowed decoders.
Definition: avcodec.h:2167
planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), big-endian
Definition: pixfmt.h:178
const VDPAUPixFmtMap * map
#define STRIDE_ALIGN
Definition: internal.h:108
const char * name
Name of the codec described by this descriptor.
Definition: codec_desc.h:46
int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Initialize the AVCodecContext to use the given AVCodec.
Definition: utils.c:545
#define snprintf
Definition: snprintf.h:34
int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
Return audio frame duration.
Definition: utils.c:1823
attribute_deprecated int refcounted_frames
If non-zero, the decoded audio and video frames returned from avcodec_decode_video2() and avcodec_dec...
Definition: avcodec.h:1363
AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
Definition: allcodecs.c:943
AVBufferRef * pool
Definition: internal.h:138
size_t av_strlcat(char *dst, const char *src, size_t size)
Append the string src to the string dst, but to a total length of no more than size - 1 bytes...
Definition: avstring.c:93
mfxU16 profile
Definition: qsvenc.c:45
int seek_preroll
Audio only.
Definition: codec_par.h:200
This struct describes the properties of a single codec described by an AVCodecID. ...
Definition: codec_desc.h:38
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:553
const char * av_get_media_type_string(enum AVMediaType media_type)
Return a string describing the media_type enum, NULL if media_type is unknown.
Definition: utils.c:76
planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
Definition: pixfmt.h:187
#define flags(name, subs,...)
Definition: cbs_av1.c:561
int bits_per_raw_sample
This is the number of valid bits in each output sample.
Definition: codec_par.h:115
const AVClass * priv_class
AVClass for the private context.
Definition: codec.h:216
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:328
planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:163
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:135
int av_get_bytes_per_sample(enum AVSampleFormat sample_fmt)
Return number of bytes per sample.
Definition: samplefmt.c:106
void ff_color_frame(AVFrame *frame, const int c[4])
Definition: utils.c:414
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
Definition: rational.h:159
int sample_rate
Audio only.
Definition: codec_par.h:170
enum AVMediaType type
Definition: codec_desc.h:40
uint8_t max_lowres
maximum value for lowres supported by the decoder
Definition: codec.h:215
AVPacket * buffer_pkt
buffers for using new encode/decode API through legacy API
Definition: internal.h:181
int64_t bitrate
Definition: h264_levels.c:131
static int av_cmp_q(AVRational a, AVRational b)
Compare two rationals.
Definition: rational.h:89
static int op(uint8_t **dst, const uint8_t *dst_end, GetByteContext *gb, int pixel, int count, int *x, int width, int linesize)
Perform decode operation.
Definition: anm.c:75
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:247
Y , 8bpp.
Definition: pixfmt.h:74
void av_opt_free(void *obj)
Free all allocated objects in obj.
Definition: opt.c:1611
const OptionDef options[]
Definition: ffmpeg_opt.c:3424
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:83
common internal api header.
enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
Converts swscale x/y chroma position to AVChromaLocation.
Definition: utils.c:367
static void flush_put_bits(PutBitContext *s)
Pad the end of the output stream with zeros.
Definition: put_bits.h:117
#define FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM
The decoder extracts and fills its parameters even if the frame is skipped due to the skip_frame sett...
Definition: internal.h:60
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:215
signed 16 bits
Definition: samplefmt.h:61
planar GBR 4:4:4 27bpp, little-endian
Definition: pixfmt.h:171
int profile
Codec-specific bitstream restrictions that the stream conforms to.
Definition: codec_par.h:120
const char * av_color_transfer_name(enum AVColorTransferCharacteristic transfer)
Definition: pixdesc.c:2942
int(* encode_sub)(struct AVCodecContext *, uint8_t *buf, int buf_size, const struct AVSubtitle *sub)
Definition: codec.h:270
void * hwaccel_priv_data
hwaccel-specific private data
Definition: internal.h:171
void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
Same behaviour av_fast_padded_malloc except that buffer will always be 0-initialized after call...
Definition: utils.c:84
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
AVProfile.
Definition: codec.h:176
planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:133
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
int ff_thread_can_start_frame(AVCodecContext *avctx)
Definition: utils.c:1960
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:1759
void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
Notify later decoding threads when part of their reference picture is ready.
Definition: utils.c:1952
packed RGB 3:3:2, 8bpp, (msb)2R 3G 3B(lsb)
Definition: pixfmt.h:86
static const uint64_t c2
Definition: murmur3.c:52
#define AV_PIX_FMT_RGB555
Definition: pixfmt.h:387
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
int caps_internal
Internal codec capabilities.
Definition: codec.h:308
const char * avcodec_get_name(enum AVCodecID id)
Get the name of a codec.
Definition: utils.c:1236
unsigned properties
Properties of the stream that gets decoded.
Definition: avcodec.h:2174
attribute_deprecated int thread_safe_callbacks
Set by the client if its custom get_buffer() callback can be called synchronously from another thread...
Definition: avcodec.h:1803
static void init_put_bits(PutBitContext *s, uint8_t *buffer, int buffer_size)
Initialize the PutBitContext s.
Definition: put_bits.h:64
int den
Denominator.
Definition: rational.h:60
int avcodec_default_execute2(AVCodecContext *c, int(*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
Definition: utils.c:456
int av_image_check_size2(unsigned int w, unsigned int h, int64_t max_pixels, enum AVPixelFormat pix_fmt, int log_offset, void *log_ctx)
Check if the given dimension of an image is valid, meaning that all bytes of a plane of an image with...
Definition: imgutils.c:288
unsigned bps
Definition: movenc.c:1598
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition: pixfmt.h:185
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
Definition: avcodec.h:215
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
Definition: utils.c:1278
#define AV_CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:300
static int lowres
Definition: ffplay.c:336
void * priv_data
Definition: avcodec.h:558
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:1257
int(* close)(struct AVCodecContext *)
Definition: codec.h:285
int av_samples_fill_arrays(uint8_t **audio_data, int *linesize, const uint8_t *buf, int nb_channels, int nb_samples, enum AVSampleFormat sample_fmt, int align)
Fill plane data pointers and linesize for samples with sample format sample_fmt.
Definition: samplefmt.c:151
void ff_thread_flush(AVCodecContext *avctx)
Wait for decoding threads to finish and reset internal state.
uint8_t * dump_separator
dump format separator.
Definition: avcodec.h:2159
int ff_thread_ref_frame(ThreadFrame *dst, const ThreadFrame *src)
Definition: utils.c:1907
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:84
#define TAG_PRINT(x)
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:253
as in Berlin toast format
Definition: codec_id.h:440
int len
int channels
number of audio channels
Definition: avcodec.h:1192
const int * supported_samplerates
array of supported audio samplerates, or NULL if unknown, array is terminated by 0 ...
Definition: codec.h:212
struct AVCodecInternal * internal
Private context used for internal data.
Definition: avcodec.h:566
unsigned avcodec_version(void)
Return the LIBAVCODEC_VERSION_INT constant.
Definition: utils.c:1501
Y , 16bpp, little-endian.
Definition: pixfmt.h:98
AVPacket * av_packet_alloc(void)
Allocate an AVPacket and set its fields to default values.
Definition: avpacket.c:53
char * ass
0 terminated ASS/SSA compatible event line.
Definition: avcodec.h:2670
This side data corresponds to the AVCPBProperties struct.
Definition: packet.h:145
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:258
Not part of ABI.
Definition: pixfmt.h:613
signed 64 bits, planar
Definition: samplefmt.h:72
const AVCodecDescriptor * avcodec_descriptor_get(enum AVCodecID id)
Definition: codec_desc.c:3487
int flags2
AV_CODEC_FLAG2_*.
Definition: avcodec.h:618
int bits_per_coded_sample
The number of bits per sample in the codedwords.
Definition: codec_par.h:102
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: codec_par.h:74
static const struct twinvq_data tab
unsigned int byte_buffer_size
Definition: internal.h:157
int channels
Audio only.
Definition: codec_par.h:166
void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
Wait for earlier decoding threads to finish reference pictures.
Definition: utils.c:1956
planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
Definition: pixfmt.h:186
static int height
Definition: utils.c:158
#define AV_CODEC_FLAG2_EXPORT_MVS
Export motion vectors through frame side data.
Definition: avcodec.h:380
AVRational av_mul_q(AVRational b, AVRational c)
Multiply two rationals.
Definition: rational.c:80
int64_t pts_correction_last_dts
PTS of the last frame.
Definition: avcodec.h:2093
int frame_number
Frame counter, set by libavcodec.
Definition: avcodec.h:1222
int height
Definition: frame.h:372
void ff_frame_thread_encoder_free(AVCodecContext *avctx)
#define av_freep(p)
int64_t pts_correction_num_faulty_pts
Current statistics for PTS correction.
Definition: avcodec.h:2090
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
enum AVFieldOrder field_order
Field order.
Definition: avcodec.h:1188
signed 16 bits, planar
Definition: samplefmt.h:67
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:605
static float sub(float src0, float src1)
void av_bsf_free(AVBSFContext **pctx)
Free a bitstream filter context and everything associated with it; write NULL into the supplied point...
Definition: bsf.c:40
planar GBR 4:4:4 48bpp, little-endian
Definition: pixfmt.h:175
enum AVSampleFormat * sample_fmts
array of supported sample formats, or NULL if unknown, array is terminated by -1
Definition: codec.h:213
AVMatrixEncoding
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
Definition: utils.c:1936
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
Definition: codec_par.h:64
int ff_alloc_entries(AVCodecContext *avctx, int count)
Definition: utils.c:1965
int nb_channels
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
Definition: pixdesc.c:2489
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), little-endian
Definition: pixfmt.h:181
const uint8_t * avpriv_find_start_code(const uint8_t *av_restrict p, const uint8_t *end, uint32_t *av_restrict state)
Definition: utils.c:1989
void ff_reset_entries(AVCodecContext *avctx)
Definition: utils.c:1970
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
int depth
Number of bits in the component.
Definition: pixdesc.h:58
uint8_t ** extended_data
pointers to the data planes/channels.
Definition: frame.h:361
planar GBRA 4:4:4:4 64bpp, little-endian
Definition: pixfmt.h:217
AVBufferRef * hw_device_ctx
A reference to the AVHWDeviceContext describing the device which will be used by a hardware encoder/d...
Definition: avcodec.h:2261
packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3
Definition: pixfmt.h:82
enum AVPixelFormat sw_format
The pixel format identifying the actual data layout of the hardware frames.
Definition: hwcontext.h:222
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
static double val(void *priv, double ch)
Definition: aeval.c:76
uint8_t * byte_buffer
temporary buffer used for encoders to store their bitstream
Definition: internal.h:156
const char * avcodec_profile_name(enum AVCodecID codec_id, int profile)
Return a name for the specified profile, if available.
Definition: utils.c:1486
static int ff_fast_malloc(void *ptr, unsigned int *size, size_t min_size, int zero_realloc)
Definition: mem_internal.h:139
int delay
Codec delay.
Definition: avcodec.h:687
int nb_samples
number of audio samples (per channel) described by this frame
Definition: frame.h:380
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
Definition: pixdesc.h:144
int strict_std_compliance
strictly follow the standard (MPEG-4, ...).
Definition: avcodec.h:1596
planar YUV 4:2:0,18bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:242
The data is the AVMatrixEncoding enum defined in libavutil/channel_layout.h.
Definition: frame.h:67
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:164
enum AVPixelFormat sw_pix_fmt
Nominal unaccelerated pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:2069
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:246
int i
Definition: input.c:407
#define FFMAX3(a, b, c)
Definition: common.h:104
int thread_type
Which multithreading methods to use.
Definition: avcodec.h:1778
planar GBR 4:4:4 30bpp, little-endian
Definition: pixfmt.h:173
int avcodec_default_execute(AVCodecContext *c, int(*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
Definition: utils.c:443
int64_t rc_max_rate
maximum bitrate
Definition: avcodec.h:1411
void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.c:190
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
void avpriv_packet_list_free(AVPacketList **pkt_buf, AVPacketList **pkt_buf_end)
Wipe the list and unref all the packets in it.
Definition: avpacket.c:782
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), 12b alpha, big-endian ...
Definition: pixfmt.h:343
uint8_t * subtitle_header
Header containing style information for text subtitles.
Definition: avcodec.h:2007
static uint8_t tmp[11]
Definition: aes_ctr.c:27
planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:160
bitstream writer API