FFmpeg  4.3.9
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 "raw.h"
54 #include "bytestream.h"
55 #include "version.h"
56 #include <stdlib.h>
57 #include <stdarg.h>
58 #include <stdatomic.h>
59 #include <limits.h>
60 #include <float.h>
61 #if CONFIG_ICONV
62 # include <iconv.h>
63 #endif
64 
65 #include "libavutil/ffversion.h"
66 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
67 
69 
70 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
71 {
72  uint8_t **p = ptr;
73  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
74  av_freep(p);
75  *size = 0;
76  return;
77  }
78  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
79  memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
80 }
81 
82 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
83 {
84  uint8_t **p = ptr;
85  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
86  av_freep(p);
87  *size = 0;
88  return;
89  }
90  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
91  memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
92 }
93 
94 int av_codec_is_encoder(const AVCodec *codec)
95 {
96  return codec && (codec->encode_sub || codec->encode2 ||codec->send_frame);
97 }
98 
99 int av_codec_is_decoder(const AVCodec *codec)
100 {
101  return codec && (codec->decode || codec->receive_frame);
102 }
103 
105 {
106  int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
107 
108  if (ret < 0)
109  width = height = 0;
110 
111  s->coded_width = width;
112  s->coded_height = height;
113  s->width = AV_CEIL_RSHIFT(width, s->lowres);
114  s->height = AV_CEIL_RSHIFT(height, s->lowres);
115 
116  return ret;
117 }
118 
120 {
121  int ret = av_image_check_sar(avctx->width, avctx->height, sar);
122 
123  if (ret < 0) {
124  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
125  sar.num, sar.den);
126  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
127  return ret;
128  } else {
129  avctx->sample_aspect_ratio = sar;
130  }
131  return 0;
132 }
133 
135  enum AVMatrixEncoding matrix_encoding)
136 {
137  AVFrameSideData *side_data;
138  enum AVMatrixEncoding *data;
139 
141  if (!side_data)
143  sizeof(enum AVMatrixEncoding));
144 
145  if (!side_data)
146  return AVERROR(ENOMEM);
147 
148  data = (enum AVMatrixEncoding*)side_data->data;
149  *data = matrix_encoding;
150 
151  return 0;
152 }
153 
155  int linesize_align[AV_NUM_DATA_POINTERS])
156 {
157  int i;
158  int w_align = 1;
159  int h_align = 1;
161 
162  if (desc) {
163  w_align = 1 << desc->log2_chroma_w;
164  h_align = 1 << desc->log2_chroma_h;
165  }
166 
167  switch (s->pix_fmt) {
168  case AV_PIX_FMT_YUV420P:
169  case AV_PIX_FMT_YUYV422:
170  case AV_PIX_FMT_YVYU422:
171  case AV_PIX_FMT_UYVY422:
172  case AV_PIX_FMT_YUV422P:
173  case AV_PIX_FMT_YUV440P:
174  case AV_PIX_FMT_YUV444P:
175  case AV_PIX_FMT_GBRP:
176  case AV_PIX_FMT_GBRAP:
177  case AV_PIX_FMT_GRAY8:
178  case AV_PIX_FMT_GRAY16BE:
179  case AV_PIX_FMT_GRAY16LE:
180  case AV_PIX_FMT_YUVJ420P:
181  case AV_PIX_FMT_YUVJ422P:
182  case AV_PIX_FMT_YUVJ440P:
183  case AV_PIX_FMT_YUVJ444P:
184  case AV_PIX_FMT_YUVA420P:
185  case AV_PIX_FMT_YUVA422P:
186  case AV_PIX_FMT_YUVA444P:
243  case AV_PIX_FMT_GBRP9LE:
244  case AV_PIX_FMT_GBRP9BE:
245  case AV_PIX_FMT_GBRP10LE:
246  case AV_PIX_FMT_GBRP10BE:
247  case AV_PIX_FMT_GBRP12LE:
248  case AV_PIX_FMT_GBRP12BE:
249  case AV_PIX_FMT_GBRP14LE:
250  case AV_PIX_FMT_GBRP14BE:
251  case AV_PIX_FMT_GBRP16LE:
252  case AV_PIX_FMT_GBRP16BE:
257  w_align = 16; //FIXME assume 16 pixel per macroblock
258  h_align = 16 * 2; // interlaced needs 2 macroblocks height
260  w_align = 16*2;
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  } else if (s->codec_id == AV_CODEC_ID_SNOW) {
273  w_align = 16;
274  h_align = 16;
275  }
276  break;
277  case AV_PIX_FMT_RGB555:
278  if (s->codec_id == AV_CODEC_ID_RPZA) {
279  w_align = 4;
280  h_align = 4;
281  }
283  w_align = 8;
284  h_align = 8;
285  }
286  break;
287  case AV_PIX_FMT_PAL8:
288  case AV_PIX_FMT_BGR8:
289  case AV_PIX_FMT_RGB8:
290  if (s->codec_id == AV_CODEC_ID_SMC ||
292  w_align = 4;
293  h_align = 4;
294  }
295  if (s->codec_id == AV_CODEC_ID_JV ||
297  w_align = 8;
298  h_align = 8;
299  }
300  if (s->codec_id == AV_CODEC_ID_MJPEG ||
302  s->codec_id == AV_CODEC_ID_LJPEG ||
304  s->codec_id == AV_CODEC_ID_AMV ||
305  s->codec_id == AV_CODEC_ID_SP5X ||
307  w_align = 8;
308  h_align = 2*8;
309  }
310  break;
311  case AV_PIX_FMT_BGR24:
312  if ((s->codec_id == AV_CODEC_ID_MSZH) ||
313  (s->codec_id == AV_CODEC_ID_ZLIB)) {
314  w_align = 4;
315  h_align = 4;
316  }
317  break;
318  case AV_PIX_FMT_RGB24:
319  if (s->codec_id == AV_CODEC_ID_CINEPAK) {
320  w_align = 4;
321  h_align = 4;
322  }
323  break;
324  default:
325  break;
326  }
327 
328  if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
329  w_align = FFMAX(w_align, 16);
330  }
331 
332  *width = FFALIGN(*width, w_align);
333  *height = FFALIGN(*height, h_align);
334  if (s->codec_id == AV_CODEC_ID_H264 || s->lowres ||
338  ) {
339  // some of the optimized chroma MC reads one line too much
340  // which is also done in mpeg decoders with lowres > 0
341  *height += 2;
342 
343  // H.264 uses edge emulation for out of frame motion vectors, for this
344  // it requires a temporary area large enough to hold a 21x21 block,
345  // increasing witdth ensure that the temporary area is large enough,
346  // the next rounded up width is 32
347  *width = FFMAX(*width, 32);
348  }
349  if (s->codec_id == AV_CODEC_ID_SVQ3) {
350  *width = FFMAX(*width, 32);
351  }
352 
353  for (i = 0; i < 4; i++)
354  linesize_align[i] = STRIDE_ALIGN;
355 }
356 
358 {
360  int chroma_shift = desc->log2_chroma_w;
361  int linesize_align[AV_NUM_DATA_POINTERS];
362  int align;
363 
364  avcodec_align_dimensions2(s, width, height, linesize_align);
365  align = FFMAX(linesize_align[0], linesize_align[3]);
366  linesize_align[1] <<= chroma_shift;
367  linesize_align[2] <<= chroma_shift;
368  align = FFMAX3(align, linesize_align[1], linesize_align[2]);
369  *width = FFALIGN(*width, align);
370 }
371 
372 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
373 {
374  if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
375  return AVERROR(EINVAL);
376  pos--;
377 
378  *xpos = (pos&1) * 128;
379  *ypos = ((pos>>1)^(pos<4)) * 128;
380 
381  return 0;
382 }
383 
385 {
386  int pos, xout, yout;
387 
388  for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
389  if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
390  return pos;
391  }
393 }
394 
396  enum AVSampleFormat sample_fmt, const uint8_t *buf,
397  int buf_size, int align)
398 {
399  int ch, planar, needed_size, ret = 0;
400 
401  needed_size = av_samples_get_buffer_size(NULL, nb_channels,
402  frame->nb_samples, sample_fmt,
403  align);
404  if (buf_size < needed_size)
405  return AVERROR(EINVAL);
406 
407  planar = av_sample_fmt_is_planar(sample_fmt);
408  if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
409  if (!(frame->extended_data = av_mallocz_array(nb_channels,
410  sizeof(*frame->extended_data))))
411  return AVERROR(ENOMEM);
412  } else {
413  frame->extended_data = frame->data;
414  }
415 
416  if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
417  (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
418  sample_fmt, align)) < 0) {
419  if (frame->extended_data != frame->data)
420  av_freep(&frame->extended_data);
421  return ret;
422  }
423  if (frame->extended_data != frame->data) {
424  for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
425  frame->data[ch] = frame->extended_data[ch];
426  }
427 
428  return ret;
429 }
430 
431 void ff_color_frame(AVFrame *frame, const int c[4])
432 {
434  int p, y;
435 
437 
438  for (p = 0; p<desc->nb_components; p++) {
439  uint8_t *dst = frame->data[p];
440  int is_chroma = p == 1 || p == 2;
441  int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
442  int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
443  if (desc->comp[0].depth >= 9) {
444  ((uint16_t*)dst)[0] = c[p];
445  av_memcpy_backptr(dst + 2, 2, bytes - 2);
446  dst += frame->linesize[p];
447  for (y = 1; y < height; y++) {
448  memcpy(dst, frame->data[p], 2*bytes);
449  dst += frame->linesize[p];
450  }
451  } else {
452  for (y = 0; y < height; y++) {
453  memset(dst, c[p], bytes);
454  dst += frame->linesize[p];
455  }
456  }
457  }
458 }
459 
460 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
461 {
462  int i;
463 
464  for (i = 0; i < count; i++) {
465  int r = func(c, (char *)arg + i * size);
466  if (ret)
467  ret[i] = r;
468  }
469  emms_c();
470  return 0;
471 }
472 
473 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
474 {
475  int i;
476 
477  for (i = 0; i < count; i++) {
478  int r = func(c, arg, i, 0);
479  if (ret)
480  ret[i] = r;
481  }
482  emms_c();
483  return 0;
484 }
485 
487  unsigned int fourcc)
488 {
489  while (tags->pix_fmt >= 0) {
490  if (tags->fourcc == fourcc)
491  return tags->pix_fmt;
492  tags++;
493  }
494  return AV_PIX_FMT_NONE;
495 }
496 
497 #if FF_API_CODEC_GET_SET
498 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
499 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
501 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
502 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
503 
505 {
506  return codec->properties;
507 }
508 
510 {
511  return codec->max_lowres;
512 }
513 #endif
514 
517 }
518 
520 {
521  int64_t bit_rate;
522  int bits_per_sample;
523 
524  switch (ctx->codec_type) {
525  case AVMEDIA_TYPE_VIDEO:
526  case AVMEDIA_TYPE_DATA:
529  bit_rate = ctx->bit_rate;
530  break;
531  case AVMEDIA_TYPE_AUDIO:
532  bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
533  if (bits_per_sample) {
534  bit_rate = ctx->sample_rate * (int64_t)ctx->channels;
535  if (bit_rate > INT64_MAX / bits_per_sample) {
536  bit_rate = 0;
537  } else
538  bit_rate *= bits_per_sample;
539  } else
540  bit_rate = ctx->bit_rate;
541  break;
542  default:
543  bit_rate = 0;
544  break;
545  }
546  return bit_rate;
547 }
548 
549 
550 static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
551 {
552  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
554 }
555 
556 static void ff_unlock_avcodec(const AVCodec *codec)
557 {
558  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
560 }
561 
563 {
564  int ret = 0;
565 
566  ff_unlock_avcodec(codec);
567 
568  ret = avcodec_open2(avctx, codec, options);
569 
570  ff_lock_avcodec(avctx, codec);
571  return ret;
572 }
573 
575 {
576  int ret = 0;
577  int codec_init_ok = 0;
578  AVDictionary *tmp = NULL;
579  const AVPixFmtDescriptor *pixdesc;
580  AVCodecInternal *avci;
581 
582  if (avcodec_is_open(avctx))
583  return 0;
584 
585  if (!codec && !avctx->codec) {
586  av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
587  return AVERROR(EINVAL);
588  }
589  if (codec && avctx->codec && codec != avctx->codec) {
590  av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
591  "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
592  return AVERROR(EINVAL);
593  }
594  if (!codec)
595  codec = avctx->codec;
596 
597  if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
598  return AVERROR(EINVAL);
599 
600  if (options)
601  av_dict_copy(&tmp, *options, 0);
602 
603  ff_lock_avcodec(avctx, codec);
604 
605  avci = av_mallocz(sizeof(*avci));
606  if (!avci) {
607  ret = AVERROR(ENOMEM);
608  goto end;
609  }
610  avctx->internal = avci;
611 
612  avci->to_free = av_frame_alloc();
614  avci->buffer_frame = av_frame_alloc();
615  avci->buffer_pkt = av_packet_alloc();
616  avci->ds.in_pkt = av_packet_alloc();
618  if (!avci->to_free || !avci->compat_decode_frame ||
619  !avci->buffer_frame || !avci->buffer_pkt ||
620  !avci->ds.in_pkt || !avci->last_pkt_props) {
621  ret = AVERROR(ENOMEM);
622  goto free_and_end;
623  }
624 
625  avci->skip_samples_multiplier = 1;
626 
627  if (codec->priv_data_size > 0) {
628  if (!avctx->priv_data) {
629  avctx->priv_data = av_mallocz(codec->priv_data_size);
630  if (!avctx->priv_data) {
631  ret = AVERROR(ENOMEM);
632  goto free_and_end;
633  }
634  if (codec->priv_class) {
635  *(const AVClass **)avctx->priv_data = codec->priv_class;
637  }
638  }
639  if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
640  goto free_and_end;
641  } else {
642  avctx->priv_data = NULL;
643  }
644  if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
645  goto free_and_end;
646 
647  if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
648  av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
649  ret = AVERROR(EINVAL);
650  goto free_and_end;
651  }
652 
653  // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
654  if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
655  (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
656  if (avctx->coded_width && avctx->coded_height)
657  ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
658  else if (avctx->width && avctx->height)
659  ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
660  if (ret < 0)
661  goto free_and_end;
662  }
663 
664  if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
665  && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
666  || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
667  av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
668  ff_set_dimensions(avctx, 0, 0);
669  }
670 
671  if (avctx->width > 0 && avctx->height > 0) {
672  if (av_image_check_sar(avctx->width, avctx->height,
673  avctx->sample_aspect_ratio) < 0) {
674  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
675  avctx->sample_aspect_ratio.num,
676  avctx->sample_aspect_ratio.den);
677  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
678  }
679  }
680 
681  /* if the decoder init function was already called previously,
682  * free the already allocated subtitle_header before overwriting it */
683  if (av_codec_is_decoder(codec))
684  av_freep(&avctx->subtitle_header);
685 
686  if (avctx->channels > FF_SANE_NB_CHANNELS || avctx->channels < 0) {
687  av_log(avctx, AV_LOG_ERROR, "Too many or invalid channels: %d\n", avctx->channels);
688  ret = AVERROR(EINVAL);
689  goto free_and_end;
690  }
691  if (avctx->sample_rate < 0) {
692  av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate);
693  ret = AVERROR(EINVAL);
694  goto free_and_end;
695  }
696  if (avctx->block_align < 0) {
697  av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align);
698  ret = AVERROR(EINVAL);
699  goto free_and_end;
700  }
701 
702  avctx->codec = codec;
703  if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
704  avctx->codec_id == AV_CODEC_ID_NONE) {
705  avctx->codec_type = codec->type;
706  avctx->codec_id = codec->id;
707  }
708  if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
709  && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
710  av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
711  ret = AVERROR(EINVAL);
712  goto free_and_end;
713  }
714  avctx->frame_number = 0;
716 
717  if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
719  const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
720  AVCodec *codec2;
721  av_log(avctx, AV_LOG_ERROR,
722  "The %s '%s' is experimental but experimental codecs are not enabled, "
723  "add '-strict %d' if you want to use it.\n",
724  codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
725  codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
726  if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
727  av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
728  codec_string, codec2->name);
729  ret = AVERROR_EXPERIMENTAL;
730  goto free_and_end;
731  }
732 
733  if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
734  (!avctx->time_base.num || !avctx->time_base.den)) {
735  avctx->time_base.num = 1;
736  avctx->time_base.den = avctx->sample_rate;
737  }
738 
739  if (!HAVE_THREADS)
740  av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
741 
743  ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
744  ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
745  ff_lock_avcodec(avctx, codec);
746  if (ret < 0)
747  goto free_and_end;
748  }
749 
750  if (av_codec_is_decoder(avctx->codec)) {
751  ret = ff_decode_bsfs_init(avctx);
752  if (ret < 0)
753  goto free_and_end;
754  }
755 
756  if (HAVE_THREADS
757  && !(avci->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
758  ret = ff_thread_init(avctx);
759  if (ret < 0) {
760  goto free_and_end;
761  }
762  }
764  avctx->thread_count = 1;
765 
766  if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
767  av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
768  avctx->codec->max_lowres);
769  avctx->lowres = avctx->codec->max_lowres;
770  }
771 
772  if (av_codec_is_encoder(avctx->codec)) {
773  int i;
774 #if FF_API_CODED_FRAME
776  avctx->coded_frame = av_frame_alloc();
777  if (!avctx->coded_frame) {
778  ret = AVERROR(ENOMEM);
779  goto free_and_end;
780  }
782 #endif
783 
784  if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
785  av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
786  ret = AVERROR(EINVAL);
787  goto free_and_end;
788  }
789 
790  if (avctx->codec->sample_fmts) {
791  for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
792  if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
793  break;
794  if (avctx->channels == 1 &&
797  avctx->sample_fmt = avctx->codec->sample_fmts[i];
798  break;
799  }
800  }
801  if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
802  char buf[128];
803  snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
804  av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
805  (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
806  ret = AVERROR(EINVAL);
807  goto free_and_end;
808  }
809  }
810  if (avctx->codec->pix_fmts) {
811  for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
812  if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
813  break;
814  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
815  && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
817  char buf[128];
818  snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
819  av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
820  (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
821  ret = AVERROR(EINVAL);
822  goto free_and_end;
823  }
824  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
825  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
826  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
827  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
828  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
829  avctx->color_range = AVCOL_RANGE_JPEG;
830  }
831  if (avctx->codec->supported_samplerates) {
832  for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
833  if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
834  break;
835  if (avctx->codec->supported_samplerates[i] == 0) {
836  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
837  avctx->sample_rate);
838  ret = AVERROR(EINVAL);
839  goto free_and_end;
840  }
841  }
842  if (avctx->sample_rate < 0) {
843  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
844  avctx->sample_rate);
845  ret = AVERROR(EINVAL);
846  goto free_and_end;
847  }
848  if (avctx->codec->channel_layouts) {
849  if (!avctx->channel_layout) {
850  av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
851  } else {
852  for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
853  if (avctx->channel_layout == avctx->codec->channel_layouts[i])
854  break;
855  if (avctx->codec->channel_layouts[i] == 0) {
856  char buf[512];
857  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
858  av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
859  ret = AVERROR(EINVAL);
860  goto free_and_end;
861  }
862  }
863  }
864  if (avctx->channel_layout && avctx->channels) {
866  if (channels != avctx->channels) {
867  char buf[512];
868  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
869  av_log(avctx, AV_LOG_ERROR,
870  "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
871  buf, channels, avctx->channels);
872  ret = AVERROR(EINVAL);
873  goto free_and_end;
874  }
875  } else if (avctx->channel_layout) {
877  }
878  if (avctx->channels < 0) {
879  av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
880  avctx->channels);
881  ret = AVERROR(EINVAL);
882  goto free_and_end;
883  }
884  if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
885  pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
886  if ( avctx->bits_per_raw_sample < 0
887  || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
888  av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
889  avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
890  avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
891  }
892  if (avctx->width <= 0 || avctx->height <= 0) {
893  av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
894  ret = AVERROR(EINVAL);
895  goto free_and_end;
896  }
897  }
898  if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
899  && avctx->bit_rate>0 && avctx->bit_rate<1000) {
900  av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
901  }
902 
903  if (!avctx->rc_initial_buffer_occupancy)
904  avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
905 
906  if (avctx->ticks_per_frame && avctx->time_base.num &&
907  avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
908  av_log(avctx, AV_LOG_ERROR,
909  "ticks_per_frame %d too large for the timebase %d/%d.",
910  avctx->ticks_per_frame,
911  avctx->time_base.num,
912  avctx->time_base.den);
913  goto free_and_end;
914  }
915 
916  if (avctx->hw_frames_ctx) {
917  AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
918  if (frames_ctx->format != avctx->pix_fmt) {
919  av_log(avctx, AV_LOG_ERROR,
920  "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
921  ret = AVERROR(EINVAL);
922  goto free_and_end;
923  }
924  if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
925  avctx->sw_pix_fmt != frames_ctx->sw_format) {
926  av_log(avctx, AV_LOG_ERROR,
927  "Mismatching AVCodecContext.sw_pix_fmt (%s) "
928  "and AVHWFramesContext.sw_format (%s)\n",
930  av_get_pix_fmt_name(frames_ctx->sw_format));
931  ret = AVERROR(EINVAL);
932  goto free_and_end;
933  }
934  avctx->sw_pix_fmt = frames_ctx->sw_format;
935  }
936  }
937 
940  avctx->pts_correction_last_pts =
941  avctx->pts_correction_last_dts = INT64_MIN;
942 
943  if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
945  av_log(avctx, AV_LOG_WARNING,
946  "gray decoding requested but not enabled at configuration time\n");
947  if (avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) {
949  }
950 
951  if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
952  || avci->frame_thread_encoder)) {
953  ret = avctx->codec->init(avctx);
954  if (ret < 0) {
955  codec_init_ok = -1;
956  goto free_and_end;
957  }
958  codec_init_ok = 1;
959  }
960 
961  ret=0;
962 
963  if (av_codec_is_decoder(avctx->codec)) {
964  if (!avctx->bit_rate)
965  avctx->bit_rate = get_bit_rate(avctx);
966  /* validate channel layout from the decoder */
967  if (avctx->channel_layout) {
969  if (!avctx->channels)
970  avctx->channels = channels;
971  else if (channels != avctx->channels) {
972  char buf[512];
973  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
974  av_log(avctx, AV_LOG_WARNING,
975  "Channel layout '%s' with %d channels does not match specified number of channels %d: "
976  "ignoring specified channel layout\n",
977  buf, channels, avctx->channels);
978  avctx->channel_layout = 0;
979  }
980  }
981  if (avctx->channels && avctx->channels < 0 ||
982  avctx->channels > FF_SANE_NB_CHANNELS) {
983  ret = AVERROR(EINVAL);
984  goto free_and_end;
985  }
986  if (avctx->bits_per_coded_sample < 0) {
987  ret = AVERROR(EINVAL);
988  goto free_and_end;
989  }
990  if (avctx->sub_charenc) {
991  if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
992  av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
993  "supported with subtitles codecs\n");
994  ret = AVERROR(EINVAL);
995  goto free_and_end;
996  } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
997  av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
998  "subtitles character encoding will be ignored\n",
999  avctx->codec_descriptor->name);
1001  } else {
1002  /* input character encoding is set for a text based subtitle
1003  * codec at this point */
1006 
1008 #if CONFIG_ICONV
1009  iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1010  if (cd == (iconv_t)-1) {
1011  ret = AVERROR(errno);
1012  av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1013  "with input character encoding \"%s\"\n", avctx->sub_charenc);
1014  goto free_and_end;
1015  }
1016  iconv_close(cd);
1017 #else
1018  av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1019  "conversion needs a libavcodec built with iconv support "
1020  "for this codec\n");
1021  ret = AVERROR(ENOSYS);
1022  goto free_and_end;
1023 #endif
1024  }
1025  }
1026  }
1027 
1028 #if FF_API_AVCTX_TIMEBASE
1029  if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1030  avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1031 #endif
1032  }
1033  if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1034  av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1035  }
1036 
1037 end:
1038  ff_unlock_avcodec(codec);
1039  if (options) {
1040  av_dict_free(options);
1041  *options = tmp;
1042  }
1043 
1044  return ret;
1045 free_and_end:
1046  if (avctx->codec && avctx->codec->close &&
1047  (codec_init_ok > 0 || (codec_init_ok < 0 &&
1049  avctx->codec->close(avctx);
1050 
1051  if (HAVE_THREADS && avci->thread_ctx)
1052  ff_thread_free(avctx);
1053 
1054  if (codec->priv_class && avctx->priv_data)
1055  av_opt_free(avctx->priv_data);
1056  av_opt_free(avctx);
1057 
1058  if (av_codec_is_encoder(avctx->codec)) {
1059 #if FF_API_CODED_FRAME
1061  av_frame_free(&avctx->coded_frame);
1063 #endif
1064  av_freep(&avctx->extradata);
1065  avctx->extradata_size = 0;
1066  }
1067 
1068  av_dict_free(&tmp);
1069  av_freep(&avctx->priv_data);
1070  av_freep(&avctx->subtitle_header);
1071  if (avci) {
1072  av_frame_free(&avci->to_free);
1074  av_frame_free(&avci->buffer_frame);
1075  av_packet_free(&avci->buffer_pkt);
1077 
1078  av_packet_free(&avci->ds.in_pkt);
1079  av_bsf_free(&avci->bsf);
1080 
1081  av_buffer_unref(&avci->pool);
1082  }
1083  av_freep(&avci);
1084  avctx->internal = NULL;
1085  avctx->codec = NULL;
1086  goto end;
1087 }
1088 
1090 {
1091  AVCodecInternal *avci = avctx->internal;
1092 
1093  if (av_codec_is_encoder(avctx->codec)) {
1094  int caps = avctx->codec->capabilities;
1095 
1096  if (!(caps & AV_CODEC_CAP_ENCODER_FLUSH)) {
1097  // Only encoders that explicitly declare support for it can be
1098  // flushed. Otherwise, this is a no-op.
1099  av_log(avctx, AV_LOG_WARNING, "Ignoring attempt to flush encoder "
1100  "that doesn't support it\n");
1101  return;
1102  }
1103 
1104  // We haven't implemented flushing for frame-threaded encoders.
1106  }
1107 
1108  avci->draining = 0;
1109  avci->draining_done = 0;
1110  avci->nb_draining_errors = 0;
1113  av_packet_unref(avci->buffer_pkt);
1114  avci->buffer_pkt_valid = 0;
1115 
1116  av_packet_unref(avci->ds.in_pkt);
1117 
1119  ff_thread_flush(avctx);
1120  else if (avctx->codec->flush)
1121  avctx->codec->flush(avctx);
1122 
1123  avctx->pts_correction_last_pts =
1124  avctx->pts_correction_last_dts = INT64_MIN;
1125 
1126  if (av_codec_is_decoder(avctx->codec))
1127  av_bsf_flush(avci->bsf);
1128 
1129  if (!avctx->refcounted_frames)
1130  av_frame_unref(avci->to_free);
1131 }
1132 
1134 {
1135  int i;
1136 
1137  for (i = 0; i < sub->num_rects; i++) {
1138  av_freep(&sub->rects[i]->data[0]);
1139  av_freep(&sub->rects[i]->data[1]);
1140  av_freep(&sub->rects[i]->data[2]);
1141  av_freep(&sub->rects[i]->data[3]);
1142  av_freep(&sub->rects[i]->text);
1143  av_freep(&sub->rects[i]->ass);
1144  av_freep(&sub->rects[i]);
1145  }
1146 
1147  av_freep(&sub->rects);
1148 
1149  memset(sub, 0, sizeof(*sub));
1150 }
1151 
1153 {
1154  int i;
1155 
1156  if (!avctx)
1157  return 0;
1158 
1159  if (avcodec_is_open(avctx)) {
1161  avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1163  }
1164  if (HAVE_THREADS && avctx->internal->thread_ctx)
1165  ff_thread_free(avctx);
1166  if (avctx->codec && avctx->codec->close)
1167  avctx->codec->close(avctx);
1168  avctx->internal->byte_buffer_size = 0;
1169  av_freep(&avctx->internal->byte_buffer);
1170  av_frame_free(&avctx->internal->to_free);
1175 
1176  av_packet_free(&avctx->internal->ds.in_pkt);
1177 
1178  av_buffer_unref(&avctx->internal->pool);
1179 
1180  if (avctx->hwaccel && avctx->hwaccel->uninit)
1181  avctx->hwaccel->uninit(avctx);
1183 
1184  av_bsf_free(&avctx->internal->bsf);
1185 
1186  av_freep(&avctx->internal);
1187  }
1188 
1189  for (i = 0; i < avctx->nb_coded_side_data; i++)
1190  av_freep(&avctx->coded_side_data[i].data);
1191  av_freep(&avctx->coded_side_data);
1192  avctx->nb_coded_side_data = 0;
1193 
1194  av_buffer_unref(&avctx->hw_frames_ctx);
1195  av_buffer_unref(&avctx->hw_device_ctx);
1196 
1197  if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1198  av_opt_free(avctx->priv_data);
1199  av_opt_free(avctx);
1200  av_freep(&avctx->priv_data);
1201  if (av_codec_is_encoder(avctx->codec)) {
1202  av_freep(&avctx->extradata);
1203 #if FF_API_CODED_FRAME
1205  av_frame_free(&avctx->coded_frame);
1207 #endif
1208  }
1209  avctx->codec = NULL;
1210  avctx->active_thread_type = 0;
1211 
1212  return 0;
1213 }
1214 
1215 const char *avcodec_get_name(enum AVCodecID id)
1216 {
1217  const AVCodecDescriptor *cd;
1218  AVCodec *codec;
1219 
1220  if (id == AV_CODEC_ID_NONE)
1221  return "none";
1222  cd = avcodec_descriptor_get(id);
1223  if (cd)
1224  return cd->name;
1225  av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1226  codec = avcodec_find_decoder(id);
1227  if (codec)
1228  return codec->name;
1229  codec = avcodec_find_encoder(id);
1230  if (codec)
1231  return codec->name;
1232  return "unknown_codec";
1233 }
1234 
1235 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1236 {
1237  int i, len, ret = 0;
1238 
1239 #define TAG_PRINT(x) \
1240  (((x) >= '0' && (x) <= '9') || \
1241  ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1242  ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
1243 
1244  for (i = 0; i < 4; i++) {
1245  len = snprintf(buf, buf_size,
1246  TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1247  buf += len;
1248  buf_size = buf_size > len ? buf_size - len : 0;
1249  ret += len;
1250  codec_tag >>= 8;
1251  }
1252  return ret;
1253 }
1254 
1255 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1256 {
1257  const char *codec_type;
1258  const char *codec_name;
1259  const char *profile = NULL;
1260  int64_t bitrate;
1261  int new_line = 0;
1262  AVRational display_aspect_ratio;
1263  const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1264 
1265  if (!buf || buf_size <= 0)
1266  return;
1267  codec_type = av_get_media_type_string(enc->codec_type);
1268  codec_name = avcodec_get_name(enc->codec_id);
1269  profile = avcodec_profile_name(enc->codec_id, enc->profile);
1270 
1271  snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1272  codec_name);
1273  buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1274 
1275  if (enc->codec && strcmp(enc->codec->name, codec_name))
1276  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1277 
1278  if (profile)
1279  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1280  if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1282  && enc->refs)
1283  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1284  ", %d reference frame%s",
1285  enc->refs, enc->refs > 1 ? "s" : "");
1286 
1287  if (enc->codec_tag)
1288  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1289  av_fourcc2str(enc->codec_tag), enc->codec_tag);
1290 
1291  switch (enc->codec_type) {
1292  case AVMEDIA_TYPE_VIDEO:
1293  {
1294  char detail[256] = "(";
1295 
1296  av_strlcat(buf, separator, buf_size);
1297 
1298  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1299  "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1301  if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1303  av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1305  av_strlcatf(detail, sizeof(detail), "%s, ",
1307 
1308  if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1310  enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1311  if (enc->colorspace != (int)enc->color_primaries ||
1312  enc->colorspace != (int)enc->color_trc) {
1313  new_line = 1;
1314  av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1318  } else
1319  av_strlcatf(detail, sizeof(detail), "%s, ",
1321  }
1322 
1323  if (enc->field_order != AV_FIELD_UNKNOWN) {
1324  const char *field_order = "progressive";
1325  if (enc->field_order == AV_FIELD_TT)
1326  field_order = "top first";
1327  else if (enc->field_order == AV_FIELD_BB)
1328  field_order = "bottom first";
1329  else if (enc->field_order == AV_FIELD_TB)
1330  field_order = "top coded first (swapped)";
1331  else if (enc->field_order == AV_FIELD_BT)
1332  field_order = "bottom coded first (swapped)";
1333 
1334  av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1335  }
1336 
1337  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1339  av_strlcatf(detail, sizeof(detail), "%s, ",
1341 
1342  if (strlen(detail) > 1) {
1343  detail[strlen(detail) - 2] = 0;
1344  av_strlcatf(buf, buf_size, "%s)", detail);
1345  }
1346  }
1347 
1348  if (enc->width) {
1349  av_strlcat(buf, new_line ? separator : ", ", buf_size);
1350 
1351  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1352  "%dx%d",
1353  enc->width, enc->height);
1354 
1355  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1356  (enc->width != enc->coded_width ||
1357  enc->height != enc->coded_height))
1358  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1359  " (%dx%d)", enc->coded_width, enc->coded_height);
1360 
1361  if (enc->sample_aspect_ratio.num) {
1362  av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1363  enc->width * (int64_t)enc->sample_aspect_ratio.num,
1364  enc->height * (int64_t)enc->sample_aspect_ratio.den,
1365  1024 * 1024);
1366  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1367  " [SAR %d:%d DAR %d:%d]",
1369  display_aspect_ratio.num, display_aspect_ratio.den);
1370  }
1371  if (av_log_get_level() >= AV_LOG_DEBUG) {
1372  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1373  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1374  ", %d/%d",
1375  enc->time_base.num / g, enc->time_base.den / g);
1376  }
1377  }
1378  if (encode) {
1379  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1380  ", q=%d-%d", enc->qmin, enc->qmax);
1381  } else {
1383  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1384  ", Closed Captions");
1386  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1387  ", lossless");
1388  }
1389  break;
1390  case AVMEDIA_TYPE_AUDIO:
1391  av_strlcat(buf, separator, buf_size);
1392 
1393  if (enc->sample_rate) {
1394  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1395  "%d Hz, ", enc->sample_rate);
1396  }
1397  av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1398  if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1399  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1400  ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1401  }
1402  if ( enc->bits_per_raw_sample > 0
1404  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1405  " (%d bit)", enc->bits_per_raw_sample);
1406  if (av_log_get_level() >= AV_LOG_VERBOSE) {
1407  if (enc->initial_padding)
1408  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1409  ", delay %d", enc->initial_padding);
1410  if (enc->trailing_padding)
1411  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1412  ", padding %d", enc->trailing_padding);
1413  }
1414  break;
1415  case AVMEDIA_TYPE_DATA:
1416  if (av_log_get_level() >= AV_LOG_DEBUG) {
1417  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1418  if (g)
1419  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1420  ", %d/%d",
1421  enc->time_base.num / g, enc->time_base.den / g);
1422  }
1423  break;
1424  case AVMEDIA_TYPE_SUBTITLE:
1425  if (enc->width)
1426  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1427  ", %dx%d", enc->width, enc->height);
1428  break;
1429  default:
1430  return;
1431  }
1432  if (encode) {
1433  if (enc->flags & AV_CODEC_FLAG_PASS1)
1434  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1435  ", pass 1");
1436  if (enc->flags & AV_CODEC_FLAG_PASS2)
1437  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1438  ", pass 2");
1439  }
1440  bitrate = get_bit_rate(enc);
1441  if (bitrate != 0) {
1442  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1443  ", %"PRId64" kb/s", bitrate / 1000);
1444  } else if (enc->rc_max_rate > 0) {
1445  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1446  ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1447  }
1448 }
1449 
1450 const char *av_get_profile_name(const AVCodec *codec, int profile)
1451 {
1452  const AVProfile *p;
1453  if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1454  return NULL;
1455 
1456  for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1457  if (p->profile == profile)
1458  return p->name;
1459 
1460  return NULL;
1461 }
1462 
1464 {
1465  const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1466  const AVProfile *p;
1467 
1468  if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1469  return NULL;
1470 
1471  for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1472  if (p->profile == profile)
1473  return p->name;
1474 
1475  return NULL;
1476 }
1477 
1478 unsigned avcodec_version(void)
1479 {
1482  av_assert0(AV_CODEC_ID_SRT==94216);
1484 
1485  return LIBAVCODEC_VERSION_INT;
1486 }
1487 
1488 const char *avcodec_configuration(void)
1489 {
1490  return FFMPEG_CONFIGURATION;
1491 }
1492 
1493 const char *avcodec_license(void)
1494 {
1495 #define LICENSE_PREFIX "libavcodec license: "
1496  return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
1497 }
1498 
1500 {
1501  switch (codec_id) {
1502  case AV_CODEC_ID_8SVX_EXP:
1503  case AV_CODEC_ID_8SVX_FIB:
1504  case AV_CODEC_ID_ADPCM_CT:
1513  return 4;
1514  case AV_CODEC_ID_DSD_LSBF:
1515  case AV_CODEC_ID_DSD_MSBF:
1518  case AV_CODEC_ID_PCM_ALAW:
1519  case AV_CODEC_ID_PCM_MULAW:
1520  case AV_CODEC_ID_PCM_VIDC:
1521  case AV_CODEC_ID_PCM_S8:
1523  case AV_CODEC_ID_PCM_U8:
1524  case AV_CODEC_ID_SDX2_DPCM:
1525  case AV_CODEC_ID_DERF_DPCM:
1526  return 8;
1527  case AV_CODEC_ID_PCM_S16BE:
1529  case AV_CODEC_ID_PCM_S16LE:
1531  case AV_CODEC_ID_PCM_U16BE:
1532  case AV_CODEC_ID_PCM_U16LE:
1533  return 16;
1535  case AV_CODEC_ID_PCM_S24BE:
1536  case AV_CODEC_ID_PCM_S24LE:
1538  case AV_CODEC_ID_PCM_U24BE:
1539  case AV_CODEC_ID_PCM_U24LE:
1540  return 24;
1541  case AV_CODEC_ID_PCM_S32BE:
1542  case AV_CODEC_ID_PCM_S32LE:
1544  case AV_CODEC_ID_PCM_U32BE:
1545  case AV_CODEC_ID_PCM_U32LE:
1546  case AV_CODEC_ID_PCM_F32BE:
1547  case AV_CODEC_ID_PCM_F32LE:
1548  case AV_CODEC_ID_PCM_F24LE:
1549  case AV_CODEC_ID_PCM_F16LE:
1550  return 32;
1551  case AV_CODEC_ID_PCM_F64BE:
1552  case AV_CODEC_ID_PCM_F64LE:
1553  case AV_CODEC_ID_PCM_S64BE:
1554  case AV_CODEC_ID_PCM_S64LE:
1555  return 64;
1556  default:
1557  return 0;
1558  }
1559 }
1560 
1562 {
1563  static const enum AVCodecID map[][2] = {
1569  [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1570  [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1571  [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1573  [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1574  [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1575  };
1576  if (fmt < 0 || fmt >= FF_ARRAY_ELEMS(map))
1577  return AV_CODEC_ID_NONE;
1578  if (be < 0 || be > 1)
1579  be = AV_NE(1, 0);
1580  return map[fmt][be];
1581 }
1582 
1584 {
1585  switch (codec_id) {
1587  return 2;
1589  return 3;
1593  case AV_CODEC_ID_ADPCM_SWF:
1594  case AV_CODEC_ID_ADPCM_MS:
1595  return 4;
1596  default:
1597  return av_get_exact_bits_per_sample(codec_id);
1598  }
1599 }
1600 
1601 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1602  uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1603  uint8_t * extradata, int frame_size, int frame_bytes)
1604 {
1606  int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1607 
1608  /* codecs with an exact constant bits per sample */
1609  if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1610  return (frame_bytes * 8LL) / (bps * ch);
1611  bps = bits_per_coded_sample;
1612 
1613  /* codecs with a fixed packet duration */
1614  switch (id) {
1615  case AV_CODEC_ID_ADPCM_ADX: return 32;
1616  case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1617  case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1618  case AV_CODEC_ID_AMR_NB:
1619  case AV_CODEC_ID_EVRC:
1620  case AV_CODEC_ID_GSM:
1621  case AV_CODEC_ID_QCELP:
1622  case AV_CODEC_ID_RA_288: return 160;
1623  case AV_CODEC_ID_AMR_WB:
1624  case AV_CODEC_ID_GSM_MS: return 320;
1625  case AV_CODEC_ID_MP1: return 384;
1626  case AV_CODEC_ID_ATRAC1: return 512;
1627  case AV_CODEC_ID_ATRAC9:
1628  case AV_CODEC_ID_ATRAC3:
1629  if (framecount > INT_MAX/1024)
1630  return 0;
1631  return 1024 * framecount;
1632  case AV_CODEC_ID_ATRAC3P: return 2048;
1633  case AV_CODEC_ID_MP2:
1634  case AV_CODEC_ID_MUSEPACK7: return 1152;
1635  case AV_CODEC_ID_AC3: return 1536;
1636  }
1637 
1638  if (sr > 0) {
1639  /* calc from sample rate */
1640  if (id == AV_CODEC_ID_TTA)
1641  return 256ll * sr / 245;
1642  else if (id == AV_CODEC_ID_DST)
1643  return 588ll * sr / 44100;
1644 
1645  if (ch > 0) {
1646  /* calc from sample rate and channels */
1647  if (id == AV_CODEC_ID_BINKAUDIO_DCT) {
1648  if (sr / 22050 > 22)
1649  return 0;
1650  return (480 << (sr / 22050)) / ch;
1651  }
1652  }
1653 
1654  if (id == AV_CODEC_ID_MP3)
1655  return sr <= 24000 ? 576 : 1152;
1656  }
1657 
1658  if (ba > 0) {
1659  /* calc from block_align */
1660  if (id == AV_CODEC_ID_SIPR) {
1661  switch (ba) {
1662  case 20: return 160;
1663  case 19: return 144;
1664  case 29: return 288;
1665  case 37: return 480;
1666  }
1667  } else if (id == AV_CODEC_ID_ILBC) {
1668  switch (ba) {
1669  case 38: return 160;
1670  case 50: return 240;
1671  }
1672  }
1673  }
1674 
1675  if (frame_bytes > 0) {
1676  /* calc from frame_bytes only */
1677  if (id == AV_CODEC_ID_TRUESPEECH)
1678  return 240 * (frame_bytes / 32);
1679  if (id == AV_CODEC_ID_NELLYMOSER)
1680  return 256 * (frame_bytes / 64);
1681  if (id == AV_CODEC_ID_RA_144)
1682  return 160 * (frame_bytes / 20);
1683 
1684  if (bps > 0) {
1685  /* calc from frame_bytes and bits_per_coded_sample */
1687  return frame_bytes * 8 / bps;
1688  }
1689 
1690  if (ch > 0 && ch < INT_MAX/16) {
1691  /* calc from frame_bytes and channels */
1692  switch (id) {
1693  case AV_CODEC_ID_ADPCM_AFC:
1694  return frame_bytes / (9 * ch) * 16;
1695  case AV_CODEC_ID_ADPCM_PSX:
1696  case AV_CODEC_ID_ADPCM_DTK:
1697  frame_bytes /= 16 * ch;
1698  if (frame_bytes > INT_MAX / 28)
1699  return 0;
1700  return frame_bytes * 28;
1701  case AV_CODEC_ID_ADPCM_4XM:
1704  return (frame_bytes - 4 * ch) * 2 / ch;
1706  return (frame_bytes - 4) * 2 / ch;
1708  return (frame_bytes - 8) * 2 / ch;
1709  case AV_CODEC_ID_ADPCM_THP:
1711  if (extradata)
1712  return frame_bytes * 14LL / (8 * ch);
1713  break;
1714  case AV_CODEC_ID_ADPCM_XA:
1715  return (frame_bytes / 128) * 224 / ch;
1717  return (frame_bytes - 6 - ch) / ch;
1718  case AV_CODEC_ID_ROQ_DPCM:
1719  return (frame_bytes - 8) / ch;
1720  case AV_CODEC_ID_XAN_DPCM:
1721  return (frame_bytes - 2 * ch) / ch;
1722  case AV_CODEC_ID_MACE3:
1723  return 3 * frame_bytes / ch;
1724  case AV_CODEC_ID_MACE6:
1725  return 6 * frame_bytes / ch;
1726  case AV_CODEC_ID_PCM_LXF:
1727  return 2 * (frame_bytes / (5 * ch));
1728  case AV_CODEC_ID_IAC:
1729  case AV_CODEC_ID_IMC:
1730  return 4 * frame_bytes / ch;
1731  }
1732 
1733  if (tag) {
1734  /* calc from frame_bytes, channels, and codec_tag */
1735  if (id == AV_CODEC_ID_SOL_DPCM) {
1736  if (tag == 3)
1737  return frame_bytes / ch;
1738  else
1739  return frame_bytes * 2 / ch;
1740  }
1741  }
1742 
1743  if (ba > 0) {
1744  /* calc from frame_bytes, channels, and block_align */
1745  int blocks = frame_bytes / ba;
1746  int64_t tmp = 0;
1747  switch (id) {
1749  if (bps < 2 || bps > 5)
1750  return 0;
1751  tmp = blocks * (1LL + (ba - 4 * ch) / (bps * ch) * 8LL);
1752  break;
1754  tmp = blocks * (((ba - 16LL) * 2 / 3 * 4) / ch);
1755  break;
1757  tmp = blocks * (1 + (ba - 4LL * ch) * 2 / ch);
1758  break;
1760  tmp = blocks * ((ba - 4LL * ch) * 2 / ch);
1761  break;
1762  case AV_CODEC_ID_ADPCM_MS:
1763  tmp = blocks * (2 + (ba - 7LL * ch) * 2LL / ch);
1764  break;
1766  tmp = blocks * (ba - 16LL) * 2 / ch;
1767  break;
1768  }
1769  if (tmp) {
1770  if (tmp != (int)tmp)
1771  return 0;
1772  return tmp;
1773  }
1774  }
1775 
1776  if (bps > 0) {
1777  /* calc from frame_bytes, channels, and bits_per_coded_sample */
1778  switch (id) {
1779  case AV_CODEC_ID_PCM_DVD:
1780  if(bps<4 || frame_bytes<3)
1781  return 0;
1782  return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1784  if(bps<4 || frame_bytes<4)
1785  return 0;
1786  return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1787  case AV_CODEC_ID_S302M:
1788  return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1789  }
1790  }
1791  }
1792  }
1793 
1794  /* Fall back on using frame_size */
1795  if (frame_size > 1 && frame_bytes)
1796  return frame_size;
1797 
1798  //For WMA we currently have no other means to calculate duration thus we
1799  //do it here by assuming CBR, which is true for all known cases.
1800  if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1801  if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1802  return (frame_bytes * 8LL * sr) / bitrate;
1803  }
1804 
1805  return 0;
1806 }
1807 
1808 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1809 {
1811  avctx->channels, avctx->block_align,
1812  avctx->codec_tag, avctx->bits_per_coded_sample,
1813  avctx->bit_rate, avctx->extradata, avctx->frame_size,
1814  frame_bytes);
1815  return FFMAX(0, duration);
1816 }
1817 
1819 {
1821  par->channels, par->block_align,
1822  par->codec_tag, par->bits_per_coded_sample,
1823  par->bit_rate, par->extradata, par->frame_size,
1824  frame_bytes);
1825  return FFMAX(0, duration);
1826 }
1827 
1828 #if !HAVE_THREADS
1830 {
1831  return -1;
1832 }
1833 
1834 #endif
1835 
1836 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1837 {
1838  unsigned int n = 0;
1839 
1840  while (v >= 0xff) {
1841  *s++ = 0xff;
1842  v -= 0xff;
1843  n++;
1844  }
1845  *s = v;
1846  n++;
1847  return n;
1848 }
1849 
1850 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1851 {
1852  int i;
1853  for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1854  return i;
1855 }
1856 
1858 {
1859  int i;
1860  if (!codec->hw_configs || index < 0)
1861  return NULL;
1862  for (i = 0; i <= index; i++)
1863  if (!codec->hw_configs[i])
1864  return NULL;
1865  return &codec->hw_configs[index]->public;
1866 }
1867 
1868 #if FF_API_USER_VISIBLE_AVHWACCEL
1870 {
1871  return NULL;
1872 }
1873 
1875 {
1876 }
1877 #endif
1878 
1879 #if FF_API_LOCKMGR
1880 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1881 {
1882  return 0;
1883 }
1884 #endif
1885 
1886 unsigned int avpriv_toupper4(unsigned int x)
1887 {
1888  return av_toupper(x & 0xFF) +
1889  (av_toupper((x >> 8) & 0xFF) << 8) +
1890  (av_toupper((x >> 16) & 0xFF) << 16) +
1891 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1892 }
1893 
1895 {
1896  int ret;
1897 
1898  dst->owner[0] = src->owner[0];
1899  dst->owner[1] = src->owner[1];
1900 
1901  ret = av_frame_ref(dst->f, src->f);
1902  if (ret < 0)
1903  return ret;
1904 
1905  av_assert0(!dst->progress);
1906 
1907  if (src->progress &&
1908  !(dst->progress = av_buffer_ref(src->progress))) {
1909  ff_thread_release_buffer(dst->owner[0], dst);
1910  return AVERROR(ENOMEM);
1911  }
1912 
1913  return 0;
1914 }
1915 
1916 #if !HAVE_THREADS
1917 
1919 {
1920  return ff_get_format(avctx, fmt);
1921 }
1922 
1924 {
1925  f->owner[0] = f->owner[1] = avctx;
1926  return ff_get_buffer(avctx, f->f, flags);
1927 }
1928 
1930 {
1931  if (f->f)
1932  av_frame_unref(f->f);
1933 }
1934 
1936 {
1937 }
1938 
1939 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
1940 {
1941 }
1942 
1943 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1944 {
1945 }
1946 
1948 {
1949  return 1;
1950 }
1951 
1952 int ff_alloc_entries(AVCodecContext *avctx, int count)
1953 {
1954  return 0;
1955 }
1956 
1958 {
1959 }
1960 
1961 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1962 {
1963 }
1964 
1965 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
1966 {
1967 }
1968 
1969 #endif
1970 
1972 {
1973  return !!s->internal;
1974 }
1975 
1976 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
1977 {
1978  int ret;
1979  char *str;
1980 
1981  ret = av_bprint_finalize(buf, &str);
1982  if (ret < 0)
1983  return ret;
1984  if (!av_bprint_is_complete(buf)) {
1985  av_free(str);
1986  return AVERROR(ENOMEM);
1987  }
1988 
1989  avctx->extradata = str;
1990  /* Note: the string is NUL terminated (so extradata can be read as a
1991  * string), but the ending character is not accounted in the size (in
1992  * binary formats you are likely not supposed to mux that character). When
1993  * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
1994  * zeros. */
1995  avctx->extradata_size = buf->len;
1996  return 0;
1997 }
1998 
2000  const uint8_t *end,
2001  uint32_t *av_restrict state)
2002 {
2003  int i;
2004 
2005  av_assert0(p <= end);
2006  if (p >= end)
2007  return end;
2008 
2009  for (i = 0; i < 3; i++) {
2010  uint32_t tmp = *state << 8;
2011  *state = tmp + *(p++);
2012  if (tmp == 0x100 || p == end)
2013  return p;
2014  }
2015 
2016  while (p < end) {
2017  if (p[-1] > 1 ) p += 3;
2018  else if (p[-2] ) p += 2;
2019  else if (p[-3]|(p[-1]-1)) p++;
2020  else {
2021  p++;
2022  break;
2023  }
2024  }
2025 
2026  p = FFMIN(p, end) - 4;
2027  *state = AV_RB32(p);
2028 
2029  return p + 4;
2030 }
2031 
2033 {
2034  AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
2035  if (!props)
2036  return NULL;
2037 
2038  if (size)
2039  *size = sizeof(*props);
2040 
2041  props->vbv_delay = UINT64_MAX;
2042 
2043  return props;
2044 }
2045 
2047 {
2049  AVCPBProperties *props;
2050  size_t size;
2051  int i;
2052 
2053  for (i = 0; i < avctx->nb_coded_side_data; i++)
2055  return (AVCPBProperties *)avctx->coded_side_data[i].data;
2056 
2057  props = av_cpb_properties_alloc(&size);
2058  if (!props)
2059  return NULL;
2060 
2061  tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
2062  if (!tmp) {
2063  av_freep(&props);
2064  return NULL;
2065  }
2066 
2067  avctx->coded_side_data = tmp;
2068  avctx->nb_coded_side_data++;
2069 
2071  avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
2072  avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
2073 
2074  return props;
2075 }
2076 
2078 {
2079  av_freep(&par->extradata);
2080 
2081  memset(par, 0, sizeof(*par));
2082 
2084  par->codec_id = AV_CODEC_ID_NONE;
2085  par->format = -1;
2092  par->sample_aspect_ratio = (AVRational){ 0, 1 };
2093  par->profile = FF_PROFILE_UNKNOWN;
2094  par->level = FF_LEVEL_UNKNOWN;
2095 }
2096 
2098 {
2099  AVCodecParameters *par = av_mallocz(sizeof(*par));
2100 
2101  if (!par)
2102  return NULL;
2104  return par;
2105 }
2106 
2108 {
2109  AVCodecParameters *par = *ppar;
2110 
2111  if (!par)
2112  return;
2114 
2115  av_freep(ppar);
2116 }
2117 
2119 {
2121  memcpy(dst, src, sizeof(*dst));
2122 
2123  dst->extradata = NULL;
2124  dst->extradata_size = 0;
2125  if (src->extradata) {
2127  if (!dst->extradata)
2128  return AVERROR(ENOMEM);
2129  memcpy(dst->extradata, src->extradata, src->extradata_size);
2130  dst->extradata_size = src->extradata_size;
2131  }
2132 
2133  return 0;
2134 }
2135 
2137  const AVCodecContext *codec)
2138 {
2140 
2141  par->codec_type = codec->codec_type;
2142  par->codec_id = codec->codec_id;
2143  par->codec_tag = codec->codec_tag;
2144 
2145  par->bit_rate = codec->bit_rate;
2148  par->profile = codec->profile;
2149  par->level = codec->level;
2150 
2151  switch (par->codec_type) {
2152  case AVMEDIA_TYPE_VIDEO:
2153  par->format = codec->pix_fmt;
2154  par->width = codec->width;
2155  par->height = codec->height;
2156  par->field_order = codec->field_order;
2157  par->color_range = codec->color_range;
2158  par->color_primaries = codec->color_primaries;
2159  par->color_trc = codec->color_trc;
2160  par->color_space = codec->colorspace;
2163  par->video_delay = codec->has_b_frames;
2164  break;
2165  case AVMEDIA_TYPE_AUDIO:
2166  par->format = codec->sample_fmt;
2167  par->channel_layout = codec->channel_layout;
2168  par->channels = codec->channels;
2169  par->sample_rate = codec->sample_rate;
2170  par->block_align = codec->block_align;
2171  par->frame_size = codec->frame_size;
2172  par->initial_padding = codec->initial_padding;
2173  par->trailing_padding = codec->trailing_padding;
2174  par->seek_preroll = codec->seek_preroll;
2175  break;
2176  case AVMEDIA_TYPE_SUBTITLE:
2177  par->width = codec->width;
2178  par->height = codec->height;
2179  break;
2180  }
2181 
2182  if (codec->extradata) {
2184  if (!par->extradata)
2185  return AVERROR(ENOMEM);
2186  memcpy(par->extradata, codec->extradata, codec->extradata_size);
2187  par->extradata_size = codec->extradata_size;
2188  }
2189 
2190  return 0;
2191 }
2192 
2194  const AVCodecParameters *par)
2195 {
2196  codec->codec_type = par->codec_type;
2197  codec->codec_id = par->codec_id;
2198  codec->codec_tag = par->codec_tag;
2199 
2200  codec->bit_rate = par->bit_rate;
2203  codec->profile = par->profile;
2204  codec->level = par->level;
2205 
2206  switch (par->codec_type) {
2207  case AVMEDIA_TYPE_VIDEO:
2208  codec->pix_fmt = par->format;
2209  codec->width = par->width;
2210  codec->height = par->height;
2211  codec->field_order = par->field_order;
2212  codec->color_range = par->color_range;
2213  codec->color_primaries = par->color_primaries;
2214  codec->color_trc = par->color_trc;
2215  codec->colorspace = par->color_space;
2218  codec->has_b_frames = par->video_delay;
2219  break;
2220  case AVMEDIA_TYPE_AUDIO:
2221  codec->sample_fmt = par->format;
2222  codec->channel_layout = par->channel_layout;
2223  codec->channels = par->channels;
2224  codec->sample_rate = par->sample_rate;
2225  codec->block_align = par->block_align;
2226  codec->frame_size = par->frame_size;
2227  codec->delay =
2228  codec->initial_padding = par->initial_padding;
2229  codec->trailing_padding = par->trailing_padding;
2230  codec->seek_preroll = par->seek_preroll;
2231  break;
2232  case AVMEDIA_TYPE_SUBTITLE:
2233  codec->width = par->width;
2234  codec->height = par->height;
2235  break;
2236  }
2237 
2238  if (par->extradata) {
2239  av_freep(&codec->extradata);
2241  if (!codec->extradata)
2242  return AVERROR(ENOMEM);
2243  memcpy(codec->extradata, par->extradata, par->extradata_size);
2244  codec->extradata_size = par->extradata_size;
2245  }
2246 
2247  return 0;
2248 }
2249 
2250 int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
2251  void **data, size_t *sei_size)
2252 {
2253  AVFrameSideData *side_data = NULL;
2254  uint8_t *sei_data;
2255 
2256  if (frame)
2257  side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
2258 
2259  if (!side_data) {
2260  *data = NULL;
2261  return 0;
2262  }
2263 
2264  *sei_size = side_data->size + 11;
2265  *data = av_mallocz(*sei_size + prefix_len);
2266  if (!*data)
2267  return AVERROR(ENOMEM);
2268  sei_data = (uint8_t*)*data + prefix_len;
2269 
2270  // country code
2271  sei_data[0] = 181;
2272  sei_data[1] = 0;
2273  sei_data[2] = 49;
2274 
2275  /**
2276  * 'GA94' is standard in North America for ATSC, but hard coding
2277  * this style may not be the right thing to do -- other formats
2278  * do exist. This information is not available in the side_data
2279  * so we are going with this right now.
2280  */
2281  AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
2282  sei_data[7] = 3;
2283  sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
2284  sei_data[9] = 0;
2285 
2286  memcpy(sei_data + 10, side_data->data, side_data->size);
2287 
2288  sei_data[side_data->size+10] = 255;
2289 
2290  return 0;
2291 }
2292 
2294 {
2295  AVRational framerate = avctx->framerate;
2296  int bits_per_coded_sample = avctx->bits_per_coded_sample;
2297  int64_t bitrate;
2298 
2299  if (!(framerate.num && framerate.den))
2300  framerate = av_inv_q(avctx->time_base);
2301  if (!(framerate.num && framerate.den))
2302  return 0;
2303 
2304  if (!bits_per_coded_sample) {
2306  bits_per_coded_sample = av_get_bits_per_pixel(desc);
2307  }
2308  bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2309  framerate.num / framerate.den;
2310 
2311  return bitrate;
2312 }
2313 
2314 int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
2315  const int * array_valid_values, int default_value)
2316 {
2317  int i = 0, ref_val;
2318 
2319  while (1) {
2320  ref_val = array_valid_values[i];
2321  if (ref_val == INT_MAX)
2322  break;
2323  if (val == ref_val)
2324  return val;
2325  i++;
2326  }
2327  /* val is not a valid value */
2328  av_log(ctx, AV_LOG_DEBUG,
2329  "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
2330  return default_value;
2331 }
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:2293
#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:1598
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
#define CONFIG_FRAME_THREAD_ENCODER
Definition: config.h:632
int nb_draining_errors
Definition: internal.h:190
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:2131
#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:1279
const struct AVCodec * codec
Definition: avcodec.h:535
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:2073
enum AVFieldOrder field_order
Video only.
Definition: codec_par.h:141
static int64_t get_bit_rate(AVCodecContext *ctx)
Definition: utils.c:519
const AVCodecDescriptor * codec_descriptor
AVCodecDescriptor.
Definition: avcodec.h:2094
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
#define AV_NUM_DATA_POINTERS
Definition: frame.h:301
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:2130
static AVMutex mutex
Definition: log.c:44
static struct @314 state
int64_t pts_correction_num_faulty_dts
Number of incorrect PTS values so far.
Definition: avcodec.h:2111
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
int size
unsigned int fourcc
Definition: raw.h:36
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2549
This structure describes decoded (raw) audio or video data.
Definition: frame.h:300
int av_codec_is_encoder(const AVCodec *codec)
Definition: utils.c:94
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
const struct AVCodecHWConfigInternal ** hw_configs
Array of pointers to hardware configurations supported by the codec, or NULL if no hardware supported...
Definition: codec.h:325
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Copy the contents of src to dst.
Definition: utils.c:2118
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:714
AVPacket * last_pkt_props
Properties (timestamps+side data) extracted from the last packet passed for decoding.
Definition: internal.h:144
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
misc image utilities
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
AVFrame * f
Definition: thread.h:35
int64_t bit_rate
the average bitrate
Definition: avcodec.h:576
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:131
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
const char * g
Definition: vf_curves.c:115
const char * desc
Definition: nvenc.c:79
#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:2501
int(* receive_frame)(struct AVCodecContext *avctx, struct AVFrame *frame)
Decode API with decoupled packet/frame dataflow.
Definition: codec.h:300
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:1436
void(* flush)(struct AVCodecContext *)
Flush buffers.
Definition: codec.h:305
#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:1357
const char * avcodec_configuration(void)
Return the libavcodec build-time configuration.
Definition: utils.c:1488
uint32_t fourcc
Definition: vaapi_decode.c:239
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:1161
int ff_decode_bsfs_init(AVCodecContext *avctx)
Called during avcodec_open2() to initialize avctx->internal->bsf.
Definition: decode.c:204
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
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:2129
static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
Definition: utils.c:550
const char * b
Definition: vf_curves.c:116
int av_codec_is_decoder(const AVCodec *codec)
Definition: utils.c:99
const char * avcodec_license(void)
Return the libavcodec license.
Definition: utils.c:1493
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:905
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
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:736
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:2702
int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec)
Definition: utils.c:515
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:70
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
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:1761
enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
Wrapper around get_format() for frame-multithreaded codecs.
Definition: utils.c:1918
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:1880
int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
Converts AVChromaLocation to swscale x/y chroma position.
Definition: utils.c:372
#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:1694
void av_bsf_flush(AVBSFContext *ctx)
Reset the internal bitstream filter state / flush internal buffers.
Definition: bsf.c:185
int trailing_padding
Audio only.
Definition: codec_par.h:196
int profile
profile
Definition: avcodec.h:1863
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:1223
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:4088
int av_bprint_finalize(AVBPrint *buf, char **ret_str)
Finalize a print buffer.
Definition: bprint.c:235
int ff_set_dimensions(AVCodecContext *s, int width, int height)
Check that the provided frame dimensions are valid and set them on the codec context.
Definition: utils.c:104
#define FFMPEG_LICENSE
Definition: config.h:5
char * text
0 terminated plain UTF-8 text
Definition: avcodec.h:2686
enum AVColorSpace color_space
Definition: codec_par.h:149
const char * av_color_space_name(enum AVColorSpace space)
Definition: pixdesc.c:2942
Macro definitions for various function/variable attributes.
int frame_size
Audio only.
Definition: codec_par.h:181
static AVMutex codec_mutex
Definition: utils.c:68
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:649
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:739
AVSubtitleRect ** rects
Definition: avcodec.h:2703
int(* uninit)(AVCodecContext *avctx)
Uninitialize the hwaccel private data.
Definition: avcodec.h:2552
void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
Definition: utils.c:1961
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:395
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:490
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:357
#define FF_LEVEL_UNKNOWN
Definition: avcodec.h:1987
#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:2358
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:1194
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:2875
#define AV_RB32
Definition: intreadwrite.h:130
void * thread_ctx
Definition: internal.h:135
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:92
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:134
int trailing_padding
Audio only.
Definition: avcodec.h:2252
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:444
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:2097
#define emms_c()
Definition: internal.h:55
#define FF_CODEC_PROPERTY_LOSSLESS
Definition: avcodec.h:2196
#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:280
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:627
#define LICENSE_PREFIX
int64_t duration
Definition: movenc.c:63
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:2193
static AVFrame * frame
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:2046
Public header for CRC hash function implementation.
void * frame_thread_encoder
Definition: internal.h:152
int initial_padding
Audio only.
Definition: codec_par.h:189
const char data[16]
Definition: mxf.c:91
Structure to hold side data for an AVFrame.
Definition: frame.h:206
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:287
int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Call avcodec_open2 recursively by decrementing counter, unlocking mutex, calling the function and the...
Definition: utils.c:562
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:1532
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
#define av_restrict
Definition: config.h:10
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:192
uint8_t * data
Definition: packet.h:299
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:1601
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
Definition: avcodec.h:1769
int av_codec_get_max_lowres(const AVCodec *codec)
Definition: utils.c:509
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
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:1850
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:1754
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:119
#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
void * av_realloc_array(void *ptr, size_t nmemb, size_t size)
Allocate, reallocate, or free an array.
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:2032
enum AVChromaLocation chroma_sample_location
This defines the location of chroma samples.
Definition: avcodec.h:1168
static void codec_parameters_reset(AVCodecParameters *par)
Definition: utils.c:2077
#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:2107
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:1597
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:154
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:1874
planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:157
Libavcodec version macros.
#define src
Definition: vp8dsp.c:254
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:1152
AVBSFContext * bsf
Definition: internal.h:138
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:2966
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:176
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
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:504
int width
Definition: frame.h:358
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
int has_b_frames
Size of the frame reordering buffer in the decoder.
Definition: avcodec.h:816
int av_get_bits_per_sample(enum AVCodecID codec_id)
Return codec bits per sample.
Definition: utils.c:1583
#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
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:2314
#define MAKE_ACCESSORS(str, name, type, field)
Definition: internal.h:91
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:136
#define AVERROR(e)
Definition: error.h:43
unsigned int avpriv_toupper4(unsigned int x)
Definition: utils.c:1886
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:1379
int64_t pts_correction_last_pts
Number of incorrect DTS values so far.
Definition: avcodec.h:2112
int active_thread_type
Which multithreading methods are in use by the codec.
Definition: avcodec.h:1808
enum AVColorPrimaries color_primaries
Definition: codec_par.h:147
int avcodec_is_open(AVCodecContext *s)
Definition: utils.c:1971
int video_delay
Video only.
Definition: codec_par.h:155
const char * r
Definition: vf_curves.c:114
int av_match_list(const char *name, const char *list, char separator)
Check if a name is in a list.
Definition: avstring.c:449
AVFrame * buffer_frame
Definition: internal.h:174
int capabilities
Codec capabilities.
Definition: codec.h:209
int initial_padding
Audio only.
Definition: avcodec.h:2064
unsigned int pos
Definition: spdifenc.c:412
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
ATSC A53 Part 4 Closed Captions.
Definition: frame.h:58
int ff_thread_init(AVCodecContext *s)
Definition: utils.c:1829
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:411
#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:606
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
Definition: allcodecs.c:914
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:301
int av_log_get_level(void)
Get the current log level.
Definition: log.c:435
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
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:2260
const struct AVProfile * profiles
If non-NULL, an array of profiles recognized for this codec.
Definition: codec_desc.h:65
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:94
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:1818
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: codec.h:106
const char av_codec_ffversion[]
Definition: utils.c:66
static int ff_mutex_unlock(AVMutex *mutex)
Definition: thread.h:169
const char * av_color_primaries_name(enum AVColorPrimaries primaries)
Definition: pixdesc.c:2894
reference-counted frame API
uint64_t channel_layout
Audio channel layout.
Definition: avcodec.h:1237
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:1393
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)
Initialize frame thread encoder.
common internal API header
#define FF_MAX_EXTRADATA_SIZE
Maximum size in bytes of extradata.
Definition: internal.h:223
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:106
int refs
number of reference frames
Definition: avcodec.h:1114
planar GBR 4:4:4:4 48bpp, big-endian
Definition: pixfmt.h:287
int block_align
Audio only.
Definition: codec_par.h:177
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
#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:1800
#define FFMIN(a, b)
Definition: common.h:96
AVPacketSideData * coded_side_data
Additional data associated with the entire coded stream.
Definition: avcodec.h:2205
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:1499
AVFrame * compat_decode_frame
Definition: internal.h:183
void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
Definition: utils.c:1965
int width
picture width / height.
Definition: avcodec.h:699
static void ff_unlock_avcodec(const AVCodec *codec)
Definition: utils.c:556
AVBufferRef * hw_frames_ctx
A reference to the AVHWFramesContext describing the input (for encoding) or output (decoding) frames...
Definition: avcodec.h:2230
#define FF_PROFILE_UNKNOWN
Definition: avcodec.h:1864
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:1140
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
#define s(width, name)
Definition: cbs_vp9.c:257
int level
level
Definition: avcodec.h:1986
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:1935
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), big-endian
Definition: pixfmt.h:180
#define CONFIG_GRAY
Definition: config.h:550
const AVProfile * profiles
array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN} ...
Definition: codec.h:217
static int av_bprint_is_complete(const AVBPrint *buf)
Test if the print buffer is complete (not truncated).
Definition: bprint.h:185
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:658
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:137
enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags, unsigned int fourcc)
Definition: utils.c:486
char * sub_charenc
DTS of the last frame.
Definition: avcodec.h:2120
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:2681
int draining
checks API usage: after codec draining, flush is required to resume operation
Definition: internal.h:167
#define FF_ARRAY_ELEMS(a)
#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:1789
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:535
int sub_charenc_mode
Subtitles character encoding mode.
Definition: avcodec.h:2128
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:1089
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:373
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:1450
int frame_size
Number of samples per channel in an audio frame.
Definition: avcodec.h:1206
#define attribute_align_arg
Definition: internal.h:62
This structure describes the bitrate properties of an encoded bitstream.
Definition: avcodec.h:448
int(* decode)(struct AVCodecContext *, void *outdata, int *outdata_size, struct AVPacket *avpkt)
Definition: codec.h:282
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:2137
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:1869
Libavcodec external API header.
enum AVMediaType codec_type
Definition: avcodec.h:534
AVSampleFormat
Audio sample formats.
Definition: samplefmt.h:58
enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
Return the PCM codec associated with a sample format.
Definition: utils.c:1561
enum AVCodecID codec_id
Definition: avcodec.h:536
int seek_preroll
Number of samples to skip after a discontinuity.
Definition: avcodec.h:2153
int av_opt_set_dict(void *obj, AVDictionary **options)
Set all the options from a given dictionary on an object.
Definition: opt.c:1655
int sample_rate
samples per second
Definition: avcodec.h:1186
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:331
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:1857
planar GBR 4:4:4 30bpp, big-endian
Definition: pixfmt.h:172
main external API structure.
Definition: avcodec.h:526
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:605
int skip_samples_multiplier
Definition: internal.h:187
planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
Definition: pixfmt.h:192
long long int64_t
Definition: coverity.c:34
uint8_t * data
The data buffer.
Definition: buffer.h:89
int qmin
minimum quantizer
Definition: avcodec.h:1372
void avsubtitle_free(AVSubtitle *sub)
Free all allocated data in the given subtitle struct.
Definition: utils.c:1133
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:551
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:1854
static void encode(AVCodecContext *ctx, AVFrame *frame, AVPacket *pkt, FILE *output)
Definition: encode_audio.c:95
uint8_t * data
Definition: frame.h:208
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:628
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
Encode extradata length to a buffer.
Definition: utils.c:1836
int nb_coded_side_data
Definition: avcodec.h:2206
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:714
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
#define FF_CODEC_PROPERTY_CLOSED_CAPTIONS
Definition: avcodec.h:2197
int(* init)(struct AVCodecContext *)
Definition: codec.h:267
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:727
static av_const int av_toupper(int c)
Locale-independent conversion of ASCII characters to uppercase.
Definition: avstring.h:231
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:1154
Rational number (pair of numerator and denominator).
Definition: rational.h:58
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:1147
void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
Wrapper around release_buffer() frame-for multithreaded codecs.
Definition: utils.c:1929
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:2136
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
int buffer_pkt_valid
Definition: internal.h:173
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:2188
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:574
#define snprintf
Definition: snprintf.h:34
int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
Return audio frame duration.
Definition: utils.c:1808
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:1361
AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
Definition: allcodecs.c:919
AVBufferRef * pool
Definition: internal.h:133
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
int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
Finalize buf into extradata and set its size appropriately.
Definition: utils.c:1976
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:554
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:576
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:314
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:431
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:172
int64_t bitrate
Definition: h264_levels.c:131
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:1610
const OptionDef options[]
Definition: ffmpeg_opt.c:3388
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:84
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:384
if(ret< 0)
Definition: vf_mcdeint.c:279
#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
static double c[64]
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:2918
int(* encode_sub)(struct AVCodecContext *, uint8_t *buf, int buf_size, const struct AVSubtitle *sub)
Definition: codec.h:268
void * hwaccel_priv_data
hwaccel-specific private data
Definition: internal.h:162
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:82
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
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 &&HAVE_MMX) 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
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:1947
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:1780
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:1939
packed RGB 3:3:2, 8bpp, (msb)2R 3G 3B(lsb)
Definition: pixfmt.h:86
static const uint64_t c2
Definition: murmur3.c:50
#define AV_PIX_FMT_RGB555
Definition: pixfmt.h:385
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:310
const char * avcodec_get_name(enum AVCodecID id)
Get the name of a codec.
Definition: utils.c:1215
unsigned properties
Properties of the stream that gets decoded.
Definition: avcodec.h:2195
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:473
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:253
unsigned bps
Definition: movenc.c:1533
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition: pixfmt.h:185
#define FFMPEG_CONFIGURATION
Definition: config.h:4
#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:1255
#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:553
int(* send_frame)(struct AVCodecContext *avctx, const struct AVFrame *frame)
Encode API with decoupled packet/frame dataflow.
Definition: codec.h:292
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:1235
int(* close)(struct AVCodecContext *)
Definition: codec.h:283
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.
#define av_free(p)
uint8_t * dump_separator
dump format separator.
Definition: avcodec.h:2180
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:85
#define TAG_PRINT(x)
#define FFMPEG_VERSION
Definition: ffversion.h:4
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:428
int len
int channels
number of audio channels
Definition: avcodec.h:1187
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:561
unsigned avcodec_version(void)
Return the LIBAVCODEC_VERSION_INT constant.
Definition: utils.c:1478
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:2693
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:562
signed 64 bits, planar
Definition: samplefmt.h:72
const AVCodecDescriptor * avcodec_descriptor_get(enum AVCodecID id)
Definition: codec_desc.c:3394
int flags2
AV_CODEC_FLAG2_*.
Definition: avcodec.h:613
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:150
#define HAVE_THREADS
Definition: config.h:273
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:1943
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:2113
int frame_number
Frame counter, set by libavcodec.
Definition: avcodec.h:1217
int height
Definition: frame.h:358
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:2110
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:1183
signed 16 bits, planar
Definition: samplefmt.h:67
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:554
int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
Definition: utils.c:1894
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:1923
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:1952
int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len, void **data, size_t *sei_size)
Check AVFrame for A53 side data and allocate and fill SEI message with A53 info.
Definition: utils.c:2250
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:2465
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:1999
void ff_reset_entries(AVCodecContext *avctx)
Definition: utils.c:1957
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:347
#define MKTAG(a, b, c, d)
Definition: common.h:406
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:2282
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:149
const char * avcodec_profile_name(enum AVCodecID codec_id, int profile)
Return a name for the specified profile, if available.
Definition: utils.c:1463
static int ff_fast_malloc(void *ptr, unsigned int *size, size_t min_size, int zero_realloc)
Definition: mem_internal.h:27
int delay
Codec delay.
Definition: avcodec.h:682
int nb_samples
number of audio samples (per channel) described by this frame
Definition: frame.h:366
#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:1593
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:2080
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:246
#define FFMAX3(a, b, c)
Definition: common.h:95
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:460
#define AV_WL32(p, v)
Definition: intreadwrite.h:426
int64_t rc_max_rate
maximum bitrate
Definition: avcodec.h:1408
void * av_mallocz_array(size_t nmemb, size_t size)
Allocate a memory block for an array with av_mallocz().
Definition: mem.c:190
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
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:2018
static uint8_t tmp[11]
Definition: aes_ctr.c:26
planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:160