FFmpeg
utils.c
Go to the documentation of this file.
1 /*
2  * utils for libavcodec
3  * Copyright (c) 2001 Fabrice Bellard
4  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 /**
24  * @file
25  * utils.
26  */
27 
28 #include "config.h"
29 #include "libavutil/attributes.h"
30 #include "libavutil/avassert.h"
31 #include "libavutil/avstring.h"
32 #include "libavutil/bprint.h"
34 #include "libavutil/crc.h"
35 #include "libavutil/frame.h"
36 #include "libavutil/hwcontext.h"
37 #include "libavutil/internal.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/mem_internal.h"
40 #include "libavutil/pixdesc.h"
41 #include "libavutil/imgutils.h"
42 #include "libavutil/samplefmt.h"
43 #include "libavutil/dict.h"
44 #include "libavutil/thread.h"
45 #include "avcodec.h"
46 #include "decode.h"
47 #include "hwconfig.h"
48 #include "libavutil/opt.h"
49 #include "mpegvideo.h"
50 #include "thread.h"
51 #include "frame_thread_encoder.h"
52 #include "internal.h"
53 #include "packet_internal.h"
54 #include "put_bits.h"
55 #include "raw.h"
56 #include "bytestream.h"
57 #include "version.h"
58 #include <stdlib.h>
59 #include <stdarg.h>
60 #include <stdatomic.h>
61 #include <limits.h>
62 #include <float.h>
63 #if CONFIG_ICONV
64 # include <iconv.h>
65 #endif
66 
67 #include "libavutil/ffversion.h"
68 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
69 
71 
72 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
73 {
74  uint8_t **p = ptr;
75  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
76  av_freep(p);
77  *size = 0;
78  return;
79  }
80  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
81  memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
82 }
83 
84 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
85 {
86  uint8_t **p = ptr;
87  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
88  av_freep(p);
89  *size = 0;
90  return;
91  }
92  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
93  memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
94 }
95 
96 int av_codec_is_encoder(const AVCodec *codec)
97 {
98  return codec && (codec->encode_sub || codec->encode2 || codec->receive_packet);
99 }
100 
101 int av_codec_is_decoder(const AVCodec *codec)
102 {
103  return codec && (codec->decode || codec->receive_frame);
104 }
105 
107 {
108  int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
109 
110  if (ret < 0)
111  width = height = 0;
112 
113  s->coded_width = width;
114  s->coded_height = height;
115  s->width = AV_CEIL_RSHIFT(width, s->lowres);
116  s->height = AV_CEIL_RSHIFT(height, s->lowres);
117 
118  return ret;
119 }
120 
122 {
123  int ret = av_image_check_sar(avctx->width, avctx->height, sar);
124 
125  if (ret < 0) {
126  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
127  sar.num, sar.den);
128  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
129  return ret;
130  } else {
131  avctx->sample_aspect_ratio = sar;
132  }
133  return 0;
134 }
135 
137  enum AVMatrixEncoding matrix_encoding)
138 {
139  AVFrameSideData *side_data;
140  enum AVMatrixEncoding *data;
141 
143  if (!side_data)
145  sizeof(enum AVMatrixEncoding));
146 
147  if (!side_data)
148  return AVERROR(ENOMEM);
149 
150  data = (enum AVMatrixEncoding*)side_data->data;
151  *data = matrix_encoding;
152 
153  return 0;
154 }
155 
157  int linesize_align[AV_NUM_DATA_POINTERS])
158 {
159  int i;
160  int w_align = 1;
161  int h_align = 1;
163 
164  if (desc) {
165  w_align = 1 << desc->log2_chroma_w;
166  h_align = 1 << desc->log2_chroma_h;
167  }
168 
169  switch (s->pix_fmt) {
170  case AV_PIX_FMT_YUV420P:
171  case AV_PIX_FMT_YUYV422:
172  case AV_PIX_FMT_YVYU422:
173  case AV_PIX_FMT_UYVY422:
174  case AV_PIX_FMT_YUV422P:
175  case AV_PIX_FMT_YUV440P:
176  case AV_PIX_FMT_YUV444P:
177  case AV_PIX_FMT_GBRP:
178  case AV_PIX_FMT_GBRAP:
179  case AV_PIX_FMT_GRAY8:
180  case AV_PIX_FMT_GRAY16BE:
181  case AV_PIX_FMT_GRAY16LE:
182  case AV_PIX_FMT_YUVJ420P:
183  case AV_PIX_FMT_YUVJ422P:
184  case AV_PIX_FMT_YUVJ440P:
185  case AV_PIX_FMT_YUVJ444P:
186  case AV_PIX_FMT_YUVA420P:
187  case AV_PIX_FMT_YUVA422P:
188  case AV_PIX_FMT_YUVA444P:
245  case AV_PIX_FMT_GBRP9LE:
246  case AV_PIX_FMT_GBRP9BE:
247  case AV_PIX_FMT_GBRP10LE:
248  case AV_PIX_FMT_GBRP10BE:
249  case AV_PIX_FMT_GBRP12LE:
250  case AV_PIX_FMT_GBRP12BE:
251  case AV_PIX_FMT_GBRP14LE:
252  case AV_PIX_FMT_GBRP14BE:
253  case AV_PIX_FMT_GBRP16LE:
254  case AV_PIX_FMT_GBRP16BE:
259  w_align = 16; //FIXME assume 16 pixel per macroblock
260  h_align = 16 * 2; // interlaced needs 2 macroblocks height
261  break;
262  case AV_PIX_FMT_YUV411P:
263  case AV_PIX_FMT_YUVJ411P:
265  w_align = 32;
266  h_align = 16 * 2;
267  break;
268  case AV_PIX_FMT_YUV410P:
269  if (s->codec_id == AV_CODEC_ID_SVQ1) {
270  w_align = 64;
271  h_align = 64;
272  }
273  break;
274  case AV_PIX_FMT_RGB555:
275  if (s->codec_id == AV_CODEC_ID_RPZA) {
276  w_align = 4;
277  h_align = 4;
278  }
280  w_align = 8;
281  h_align = 8;
282  }
283  break;
284  case AV_PIX_FMT_PAL8:
285  case AV_PIX_FMT_BGR8:
286  case AV_PIX_FMT_RGB8:
287  if (s->codec_id == AV_CODEC_ID_SMC ||
289  w_align = 4;
290  h_align = 4;
291  }
292  if (s->codec_id == AV_CODEC_ID_JV ||
294  w_align = 8;
295  h_align = 8;
296  }
297  break;
298  case AV_PIX_FMT_BGR24:
299  if ((s->codec_id == AV_CODEC_ID_MSZH) ||
300  (s->codec_id == AV_CODEC_ID_ZLIB)) {
301  w_align = 4;
302  h_align = 4;
303  }
304  break;
305  case AV_PIX_FMT_RGB24:
306  if (s->codec_id == AV_CODEC_ID_CINEPAK) {
307  w_align = 4;
308  h_align = 4;
309  }
310  break;
311  default:
312  break;
313  }
314 
315  if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
316  w_align = FFMAX(w_align, 8);
317  }
318 
319  *width = FFALIGN(*width, w_align);
320  *height = FFALIGN(*height, h_align);
321  if (s->codec_id == AV_CODEC_ID_H264 || s->lowres ||
324  ) {
325  // some of the optimized chroma MC reads one line too much
326  // which is also done in mpeg decoders with lowres > 0
327  *height += 2;
328 
329  // H.264 uses edge emulation for out of frame motion vectors, for this
330  // it requires a temporary area large enough to hold a 21x21 block,
331  // increasing witdth ensure that the temporary area is large enough,
332  // the next rounded up width is 32
333  *width = FFMAX(*width, 32);
334  }
335 
336  for (i = 0; i < 4; i++)
337  linesize_align[i] = STRIDE_ALIGN;
338 }
339 
341 {
343  int chroma_shift = desc->log2_chroma_w;
344  int linesize_align[AV_NUM_DATA_POINTERS];
345  int align;
346 
347  avcodec_align_dimensions2(s, width, height, linesize_align);
348  align = FFMAX(linesize_align[0], linesize_align[3]);
349  linesize_align[1] <<= chroma_shift;
350  linesize_align[2] <<= chroma_shift;
351  align = FFMAX3(align, linesize_align[1], linesize_align[2]);
352  *width = FFALIGN(*width, align);
353 }
354 
355 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
356 {
357  if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
358  return AVERROR(EINVAL);
359  pos--;
360 
361  *xpos = (pos&1) * 128;
362  *ypos = ((pos>>1)^(pos<4)) * 128;
363 
364  return 0;
365 }
366 
368 {
369  int pos, xout, yout;
370 
371  for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
372  if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
373  return pos;
374  }
376 }
377 
379  enum AVSampleFormat sample_fmt, const uint8_t *buf,
380  int buf_size, int align)
381 {
382  int ch, planar, needed_size, ret = 0;
383 
384  needed_size = av_samples_get_buffer_size(NULL, nb_channels,
385  frame->nb_samples, sample_fmt,
386  align);
387  if (buf_size < needed_size)
388  return AVERROR(EINVAL);
389 
390  planar = av_sample_fmt_is_planar(sample_fmt);
391  if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
392  if (!(frame->extended_data = av_mallocz_array(nb_channels,
393  sizeof(*frame->extended_data))))
394  return AVERROR(ENOMEM);
395  } else {
396  frame->extended_data = frame->data;
397  }
398 
399  if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
400  (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
401  sample_fmt, align)) < 0) {
402  if (frame->extended_data != frame->data)
403  av_freep(&frame->extended_data);
404  return ret;
405  }
406  if (frame->extended_data != frame->data) {
407  for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
408  frame->data[ch] = frame->extended_data[ch];
409  }
410 
411  return ret;
412 }
413 
414 void ff_color_frame(AVFrame *frame, const int c[4])
415 {
417  int p, y;
418 
420 
421  for (p = 0; p<desc->nb_components; p++) {
422  uint8_t *dst = frame->data[p];
423  int is_chroma = p == 1 || p == 2;
424  int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
425  int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
426  if (desc->comp[0].depth >= 9) {
427  ((uint16_t*)dst)[0] = c[p];
428  av_memcpy_backptr(dst + 2, 2, bytes - 2);
429  dst += frame->linesize[p];
430  for (y = 1; y < height; y++) {
431  memcpy(dst, frame->data[p], 2*bytes);
432  dst += frame->linesize[p];
433  }
434  } else {
435  for (y = 0; y < height; y++) {
436  memset(dst, c[p], bytes);
437  dst += frame->linesize[p];
438  }
439  }
440  }
441 }
442 
443 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
444 {
445  int i;
446 
447  for (i = 0; i < count; i++) {
448  int r = func(c, (char *)arg + i * size);
449  if (ret)
450  ret[i] = r;
451  }
452  emms_c();
453  return 0;
454 }
455 
456 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
457 {
458  int i;
459 
460  for (i = 0; i < count; i++) {
461  int r = func(c, arg, i, 0);
462  if (ret)
463  ret[i] = r;
464  }
465  emms_c();
466  return 0;
467 }
468 
470  unsigned int fourcc)
471 {
472  while (tags->pix_fmt >= 0) {
473  if (tags->fourcc == fourcc)
474  return tags->pix_fmt;
475  tags++;
476  }
477  return AV_PIX_FMT_NONE;
478 }
479 
480 #if FF_API_CODEC_GET_SET
481 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
482 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
484 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
485 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
486 
488 {
489  return codec->properties;
490 }
491 
493 {
494  return codec->max_lowres;
495 }
496 #endif
497 
500 }
501 
503 {
504  int64_t bit_rate;
505  int bits_per_sample;
506 
507  switch (ctx->codec_type) {
508  case AVMEDIA_TYPE_VIDEO:
509  case AVMEDIA_TYPE_DATA:
512  bit_rate = ctx->bit_rate;
513  break;
514  case AVMEDIA_TYPE_AUDIO:
515  bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
516  bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
517  break;
518  default:
519  bit_rate = 0;
520  break;
521  }
522  return bit_rate;
523 }
524 
525 
526 static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
527 {
528  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
530 }
531 
532 static void ff_unlock_avcodec(const AVCodec *codec)
533 {
534  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
536 }
537 
538 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
539 {
540  int ret = 0;
541  int codec_init_ok = 0;
542  AVDictionary *tmp = NULL;
543  const AVPixFmtDescriptor *pixdesc;
544  AVCodecInternal *avci;
545 
546  if (avcodec_is_open(avctx))
547  return 0;
548 
549  if (!codec && !avctx->codec) {
550  av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
551  return AVERROR(EINVAL);
552  }
553  if (codec && avctx->codec && codec != avctx->codec) {
554  av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
555  "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
556  return AVERROR(EINVAL);
557  }
558  if (!codec)
559  codec = avctx->codec;
560 
561  if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
562  return AVERROR(EINVAL);
563 
564  if (options)
565  av_dict_copy(&tmp, *options, 0);
566 
567  ff_lock_avcodec(avctx, codec);
568 
569  avci = av_mallocz(sizeof(*avci));
570  if (!avci) {
571  ret = AVERROR(ENOMEM);
572  goto end;
573  }
574  avctx->internal = avci;
575 
576  avci->to_free = av_frame_alloc();
579  avci->buffer_frame = av_frame_alloc();
580  avci->buffer_pkt = av_packet_alloc();
581  avci->es.in_frame = av_frame_alloc();
582  avci->ds.in_pkt = av_packet_alloc();
584  if (!avci->compat_decode_frame || !avci->compat_encode_packet ||
585  !avci->buffer_frame || !avci->buffer_pkt ||
586  !avci->es.in_frame || !avci->ds.in_pkt ||
587  !avci->to_free || !avci->last_pkt_props) {
588  ret = AVERROR(ENOMEM);
589  goto free_and_end;
590  }
591 
592  avci->skip_samples_multiplier = 1;
593 
594  if (codec->priv_data_size > 0) {
595  if (!avctx->priv_data) {
596  avctx->priv_data = av_mallocz(codec->priv_data_size);
597  if (!avctx->priv_data) {
598  ret = AVERROR(ENOMEM);
599  goto free_and_end;
600  }
601  if (codec->priv_class) {
602  *(const AVClass **)avctx->priv_data = codec->priv_class;
604  }
605  }
606  if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
607  goto free_and_end;
608  } else {
609  avctx->priv_data = NULL;
610  }
611  if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
612  goto free_and_end;
613 
614  if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
615  av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
616  ret = AVERROR(EINVAL);
617  goto free_and_end;
618  }
619 
620  // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
621  if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
622  (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
623  if (avctx->coded_width && avctx->coded_height)
624  ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
625  else if (avctx->width && avctx->height)
626  ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
627  if (ret < 0)
628  goto free_and_end;
629  }
630 
631  if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
632  && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
633  || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
634  av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
635  ff_set_dimensions(avctx, 0, 0);
636  }
637 
638  if (avctx->width > 0 && avctx->height > 0) {
639  if (av_image_check_sar(avctx->width, avctx->height,
640  avctx->sample_aspect_ratio) < 0) {
641  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
642  avctx->sample_aspect_ratio.num,
643  avctx->sample_aspect_ratio.den);
644  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
645  }
646  }
647 
648  /* if the decoder init function was already called previously,
649  * free the already allocated subtitle_header before overwriting it */
650  if (av_codec_is_decoder(codec))
651  av_freep(&avctx->subtitle_header);
652 
653  if (avctx->channels > FF_SANE_NB_CHANNELS || avctx->channels < 0) {
654  av_log(avctx, AV_LOG_ERROR, "Too many or invalid channels: %d\n", avctx->channels);
655  ret = AVERROR(EINVAL);
656  goto free_and_end;
657  }
658  if (av_codec_is_decoder(codec) &&
659  codec->type == AVMEDIA_TYPE_AUDIO &&
661  avctx->channels == 0) {
662  av_log(avctx, AV_LOG_ERROR, "Decoder requires channel count but channels not set\n");
663  ret = AVERROR(EINVAL);
664  goto free_and_end;
665  }
666 
667  if (avctx->sample_rate < 0) {
668  av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate);
669  ret = AVERROR(EINVAL);
670  goto free_and_end;
671  }
672  if (avctx->block_align < 0) {
673  av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align);
674  ret = AVERROR(EINVAL);
675  goto free_and_end;
676  }
677 
678 #if FF_API_THREAD_SAFE_CALLBACKS
680  if ((avctx->thread_type & FF_THREAD_FRAME) &&
682  !avctx->thread_safe_callbacks) {
683  av_log(avctx, AV_LOG_WARNING, "Requested frame threading with a "
684  "custom get_buffer2() implementation which is not marked as "
685  "thread safe. This is not supported anymore, make your "
686  "callback thread-safe.\n");
687  }
689 #endif
690 
691  avctx->codec = codec;
692  if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
693  avctx->codec_id == AV_CODEC_ID_NONE) {
694  avctx->codec_type = codec->type;
695  avctx->codec_id = codec->id;
696  }
697  if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
698  && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
699  av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
700  ret = AVERROR(EINVAL);
701  goto free_and_end;
702  }
703  avctx->frame_number = 0;
705 
706  if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
708  const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
709  const AVCodec *codec2;
710  av_log(avctx, AV_LOG_ERROR,
711  "The %s '%s' is experimental but experimental codecs are not enabled, "
712  "add '-strict %d' if you want to use it.\n",
713  codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
714  codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
715  if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
716  av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
717  codec_string, codec2->name);
718  ret = AVERROR_EXPERIMENTAL;
719  goto free_and_end;
720  }
721 
722  if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
723  (!avctx->time_base.num || !avctx->time_base.den)) {
724  avctx->time_base.num = 1;
725  avctx->time_base.den = avctx->sample_rate;
726  }
727 
728  if (!HAVE_THREADS)
729  av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
730 
731  if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
732  ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
733  ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
734  ff_lock_avcodec(avctx, codec);
735  if (ret < 0)
736  goto free_and_end;
737  }
738 
739  if (av_codec_is_decoder(avctx->codec)) {
740  ret = ff_decode_bsfs_init(avctx);
741  if (ret < 0)
742  goto free_and_end;
743  }
744 
745  if (HAVE_THREADS
746  && !(avci->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
747  ret = ff_thread_init(avctx);
748  if (ret < 0) {
749  goto free_and_end;
750  }
751  }
752  if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
753  avctx->thread_count = 1;
754 
755  if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
756  av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
757  avctx->codec->max_lowres);
758  avctx->lowres = avctx->codec->max_lowres;
759  }
760 
761  if (av_codec_is_encoder(avctx->codec)) {
762  int i;
763 #if FF_API_CODED_FRAME
765  avctx->coded_frame = av_frame_alloc();
766  if (!avctx->coded_frame) {
767  ret = AVERROR(ENOMEM);
768  goto free_and_end;
769  }
771 #endif
772 
773  if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
774  av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
775  ret = AVERROR(EINVAL);
776  goto free_and_end;
777  }
778 
779  if (avctx->codec->sample_fmts) {
780  for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
781  if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
782  break;
783  if (avctx->channels == 1 &&
786  avctx->sample_fmt = avctx->codec->sample_fmts[i];
787  break;
788  }
789  }
790  if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
791  char buf[128];
792  snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
793  av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
794  (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
795  ret = AVERROR(EINVAL);
796  goto free_and_end;
797  }
798  }
799  if (avctx->codec->pix_fmts) {
800  for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
801  if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
802  break;
803  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
804  && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
806  char buf[128];
807  snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
808  av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
809  (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
810  ret = AVERROR(EINVAL);
811  goto free_and_end;
812  }
813  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
814  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
815  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
816  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
817  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
818  avctx->color_range = AVCOL_RANGE_JPEG;
819  }
820  if (avctx->codec->supported_samplerates) {
821  for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
822  if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
823  break;
824  if (avctx->codec->supported_samplerates[i] == 0) {
825  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
826  avctx->sample_rate);
827  ret = AVERROR(EINVAL);
828  goto free_and_end;
829  }
830  }
831  if (avctx->sample_rate < 0) {
832  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
833  avctx->sample_rate);
834  ret = AVERROR(EINVAL);
835  goto free_and_end;
836  }
837  if (avctx->codec->channel_layouts) {
838  if (!avctx->channel_layout) {
839  av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
840  } else {
841  for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
842  if (avctx->channel_layout == avctx->codec->channel_layouts[i])
843  break;
844  if (avctx->codec->channel_layouts[i] == 0) {
845  char buf[512];
846  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
847  av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
848  ret = AVERROR(EINVAL);
849  goto free_and_end;
850  }
851  }
852  }
853  if (avctx->channel_layout && avctx->channels) {
855  if (channels != avctx->channels) {
856  char buf[512];
857  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
858  av_log(avctx, AV_LOG_ERROR,
859  "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
860  buf, channels, avctx->channels);
861  ret = AVERROR(EINVAL);
862  goto free_and_end;
863  }
864  } else if (avctx->channel_layout) {
866  }
867  if (avctx->channels < 0) {
868  av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
869  avctx->channels);
870  ret = AVERROR(EINVAL);
871  goto free_and_end;
872  }
873  if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
874  pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
875  if ( avctx->bits_per_raw_sample < 0
876  || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
877  av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
878  avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
879  avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
880  }
881  if (avctx->width <= 0 || avctx->height <= 0) {
882  av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
883  ret = AVERROR(EINVAL);
884  goto free_and_end;
885  }
886  }
887  if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
888  && avctx->bit_rate>0 && avctx->bit_rate<1000) {
889  av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
890  }
891 
892  if (!avctx->rc_initial_buffer_occupancy)
893  avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
894 
895  if (avctx->ticks_per_frame && avctx->time_base.num &&
896  avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
897  av_log(avctx, AV_LOG_ERROR,
898  "ticks_per_frame %d too large for the timebase %d/%d.",
899  avctx->ticks_per_frame,
900  avctx->time_base.num,
901  avctx->time_base.den);
902  goto free_and_end;
903  }
904 
905  if (avctx->hw_frames_ctx) {
906  AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
907  if (frames_ctx->format != avctx->pix_fmt) {
908  av_log(avctx, AV_LOG_ERROR,
909  "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
910  ret = AVERROR(EINVAL);
911  goto free_and_end;
912  }
913  if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
914  avctx->sw_pix_fmt != frames_ctx->sw_format) {
915  av_log(avctx, AV_LOG_ERROR,
916  "Mismatching AVCodecContext.sw_pix_fmt (%s) "
917  "and AVHWFramesContext.sw_format (%s)\n",
919  av_get_pix_fmt_name(frames_ctx->sw_format));
920  ret = AVERROR(EINVAL);
921  goto free_and_end;
922  }
923  avctx->sw_pix_fmt = frames_ctx->sw_format;
924  }
925  }
926 
929  avctx->pts_correction_last_pts =
930  avctx->pts_correction_last_dts = INT64_MIN;
931 
932  if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
934  av_log(avctx, AV_LOG_WARNING,
935  "gray decoding requested but not enabled at configuration time\n");
936  if (avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) {
938  }
939 
940  if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
941  || avci->frame_thread_encoder)) {
942  ret = avctx->codec->init(avctx);
943  if (ret < 0) {
944  codec_init_ok = -1;
945  goto free_and_end;
946  }
947  codec_init_ok = 1;
948  }
949 
950  ret=0;
951 
952  if (av_codec_is_decoder(avctx->codec)) {
953  if (!avctx->bit_rate)
954  avctx->bit_rate = get_bit_rate(avctx);
955  /* validate channel layout from the decoder */
956  if (avctx->channel_layout) {
958  if (!avctx->channels)
959  avctx->channels = channels;
960  else if (channels != avctx->channels) {
961  char buf[512];
962  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
963  av_log(avctx, AV_LOG_WARNING,
964  "Channel layout '%s' with %d channels does not match specified number of channels %d: "
965  "ignoring specified channel layout\n",
966  buf, channels, avctx->channels);
967  avctx->channel_layout = 0;
968  }
969  }
970  if (avctx->channels && avctx->channels < 0 ||
971  avctx->channels > FF_SANE_NB_CHANNELS) {
972  ret = AVERROR(EINVAL);
973  goto free_and_end;
974  }
975  if (avctx->bits_per_coded_sample < 0) {
976  ret = AVERROR(EINVAL);
977  goto free_and_end;
978  }
979  if (avctx->sub_charenc) {
980  if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
981  av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
982  "supported with subtitles codecs\n");
983  ret = AVERROR(EINVAL);
984  goto free_and_end;
985  } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
986  av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
987  "subtitles character encoding will be ignored\n",
988  avctx->codec_descriptor->name);
990  } else {
991  /* input character encoding is set for a text based subtitle
992  * codec at this point */
995 
997 #if CONFIG_ICONV
998  iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
999  if (cd == (iconv_t)-1) {
1000  ret = AVERROR(errno);
1001  av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1002  "with input character encoding \"%s\"\n", avctx->sub_charenc);
1003  goto free_and_end;
1004  }
1005  iconv_close(cd);
1006 #else
1007  av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1008  "conversion needs a libavcodec built with iconv support "
1009  "for this codec\n");
1010  ret = AVERROR(ENOSYS);
1011  goto free_and_end;
1012 #endif
1013  }
1014  }
1015  }
1016 
1017 #if FF_API_AVCTX_TIMEBASE
1018  if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1019  avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1020 #endif
1021  }
1022  if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1023  av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1024  }
1025 
1026 end:
1027  ff_unlock_avcodec(codec);
1028  if (options) {
1029  av_dict_free(options);
1030  *options = tmp;
1031  }
1032 
1033  return ret;
1034 free_and_end:
1035  if (avctx->codec && avctx->codec->close &&
1036  (codec_init_ok > 0 || (codec_init_ok < 0 &&
1038  avctx->codec->close(avctx);
1039 
1040  if (HAVE_THREADS && avci->thread_ctx)
1041  ff_thread_free(avctx);
1042 
1043  if (codec->priv_class && avctx->priv_data)
1044  av_opt_free(avctx->priv_data);
1045  av_opt_free(avctx);
1046 
1047  if (av_codec_is_encoder(avctx->codec)) {
1048 #if FF_API_CODED_FRAME
1050  av_frame_free(&avctx->coded_frame);
1052 #endif
1053  av_freep(&avctx->extradata);
1054  avctx->extradata_size = 0;
1055  }
1056 
1057  av_dict_free(&tmp);
1058  av_freep(&avctx->priv_data);
1059  av_freep(&avctx->subtitle_header);
1060 
1061  av_frame_free(&avci->to_free);
1063  av_frame_free(&avci->buffer_frame);
1065  av_packet_free(&avci->buffer_pkt);
1067 
1068  av_packet_free(&avci->ds.in_pkt);
1069  av_frame_free(&avci->es.in_frame);
1070  av_bsf_free(&avci->bsf);
1071 
1072  av_buffer_unref(&avci->pool);
1073  av_freep(&avci);
1074  avctx->internal = NULL;
1075  avctx->codec = NULL;
1076  goto end;
1077 }
1078 
1080 {
1081  AVCodecInternal *avci = avctx->internal;
1082 
1083  if (av_codec_is_encoder(avctx->codec)) {
1084  int caps = avctx->codec->capabilities;
1085 
1086  if (!(caps & AV_CODEC_CAP_ENCODER_FLUSH)) {
1087  // Only encoders that explicitly declare support for it can be
1088  // flushed. Otherwise, this is a no-op.
1089  av_log(avctx, AV_LOG_WARNING, "Ignoring attempt to flush encoder "
1090  "that doesn't support it\n");
1091  return;
1092  }
1093 
1094  // We haven't implemented flushing for frame-threaded encoders.
1096  }
1097 
1098  avci->draining = 0;
1099  avci->draining_done = 0;
1100  avci->nb_draining_errors = 0;
1104  av_packet_unref(avci->buffer_pkt);
1105 
1108  &avci->pkt_props_tail);
1109 
1110  av_frame_unref(avci->es.in_frame);
1111  av_packet_unref(avci->ds.in_pkt);
1112 
1113  if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
1114  ff_thread_flush(avctx);
1115  else if (avctx->codec->flush)
1116  avctx->codec->flush(avctx);
1117 
1118  avctx->pts_correction_last_pts =
1119  avctx->pts_correction_last_dts = INT64_MIN;
1120 
1121  if (av_codec_is_decoder(avctx->codec))
1122  av_bsf_flush(avci->bsf);
1123 
1124  if (!avctx->refcounted_frames)
1125  av_frame_unref(avci->to_free);
1126 }
1127 
1129 {
1130  int i;
1131 
1132  for (i = 0; i < sub->num_rects; i++) {
1133  av_freep(&sub->rects[i]->data[0]);
1134  av_freep(&sub->rects[i]->data[1]);
1135  av_freep(&sub->rects[i]->data[2]);
1136  av_freep(&sub->rects[i]->data[3]);
1137  av_freep(&sub->rects[i]->text);
1138  av_freep(&sub->rects[i]->ass);
1139  av_freep(&sub->rects[i]);
1140  }
1141 
1142  av_freep(&sub->rects);
1143 
1144  memset(sub, 0, sizeof(*sub));
1145 }
1146 
1148 {
1149  int i;
1150 
1151  if (!avctx)
1152  return 0;
1153 
1154  if (avcodec_is_open(avctx)) {
1155  if (CONFIG_FRAME_THREAD_ENCODER &&
1156  avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1158  }
1159  if (HAVE_THREADS && avctx->internal->thread_ctx)
1160  ff_thread_free(avctx);
1161  if (avctx->codec && avctx->codec->close)
1162  avctx->codec->close(avctx);
1163  avctx->internal->byte_buffer_size = 0;
1164  av_freep(&avctx->internal->byte_buffer);
1165  av_frame_free(&avctx->internal->to_free);
1172  &avctx->internal->pkt_props_tail);
1173 
1174  av_packet_free(&avctx->internal->ds.in_pkt);
1175  av_frame_free(&avctx->internal->es.in_frame);
1176 
1177  av_buffer_unref(&avctx->internal->pool);
1178 
1179  if (avctx->hwaccel && avctx->hwaccel->uninit)
1180  avctx->hwaccel->uninit(avctx);
1182 
1183  av_bsf_free(&avctx->internal->bsf);
1184 
1185  av_freep(&avctx->internal);
1186  }
1187 
1188  for (i = 0; i < avctx->nb_coded_side_data; i++)
1189  av_freep(&avctx->coded_side_data[i].data);
1190  av_freep(&avctx->coded_side_data);
1191  avctx->nb_coded_side_data = 0;
1192 
1193  av_buffer_unref(&avctx->hw_frames_ctx);
1194  av_buffer_unref(&avctx->hw_device_ctx);
1195 
1196  if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1197  av_opt_free(avctx->priv_data);
1198  av_opt_free(avctx);
1199  av_freep(&avctx->priv_data);
1200  if (av_codec_is_encoder(avctx->codec)) {
1201  av_freep(&avctx->extradata);
1202 #if FF_API_CODED_FRAME
1204  av_frame_free(&avctx->coded_frame);
1206 #endif
1207  }
1208  avctx->codec = NULL;
1209  avctx->active_thread_type = 0;
1210 
1211  return 0;
1212 }
1213 
1214 const char *avcodec_get_name(enum AVCodecID id)
1215 {
1216  const AVCodecDescriptor *cd;
1217  const AVCodec *codec;
1218 
1219  if (id == AV_CODEC_ID_NONE)
1220  return "none";
1221  cd = avcodec_descriptor_get(id);
1222  if (cd)
1223  return cd->name;
1224  av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1225  codec = avcodec_find_decoder(id);
1226  if (codec)
1227  return codec->name;
1228  codec = avcodec_find_encoder(id);
1229  if (codec)
1230  return codec->name;
1231  return "unknown_codec";
1232 }
1233 
1234 #if FF_API_TAG_STRING
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 #endif
1255 
1256 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1257 {
1258  const char *codec_type;
1259  const char *codec_name;
1260  const char *profile = NULL;
1261  int64_t bitrate;
1262  int new_line = 0;
1263  AVRational display_aspect_ratio;
1264  const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1265 
1266  if (!buf || buf_size <= 0)
1267  return;
1268  codec_type = av_get_media_type_string(enc->codec_type);
1269  codec_name = avcodec_get_name(enc->codec_id);
1270  profile = avcodec_profile_name(enc->codec_id, enc->profile);
1271 
1272  snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1273  codec_name);
1274  buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1275 
1276  if (enc->codec && strcmp(enc->codec->name, codec_name))
1277  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1278 
1279  if (profile)
1280  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1281  if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1283  && enc->refs)
1284  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1285  ", %d reference frame%s",
1286  enc->refs, enc->refs > 1 ? "s" : "");
1287 
1288  if (enc->codec_tag)
1289  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1290  av_fourcc2str(enc->codec_tag), enc->codec_tag);
1291 
1292  switch (enc->codec_type) {
1293  case AVMEDIA_TYPE_VIDEO:
1294  {
1295  char detail[256] = "(";
1296 
1297  av_strlcat(buf, separator, buf_size);
1298 
1299  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1300  "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1302  if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1304  av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1306  av_strlcatf(detail, sizeof(detail), "%s, ",
1308 
1309  if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1311  enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1312  if (enc->colorspace != (int)enc->color_primaries ||
1313  enc->colorspace != (int)enc->color_trc) {
1314  new_line = 1;
1315  av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1319  } else
1320  av_strlcatf(detail, sizeof(detail), "%s, ",
1322  }
1323 
1324  if (enc->field_order != AV_FIELD_UNKNOWN) {
1325  const char *field_order = "progressive";
1326  if (enc->field_order == AV_FIELD_TT)
1327  field_order = "top first";
1328  else if (enc->field_order == AV_FIELD_BB)
1329  field_order = "bottom first";
1330  else if (enc->field_order == AV_FIELD_TB)
1331  field_order = "top coded first (swapped)";
1332  else if (enc->field_order == AV_FIELD_BT)
1333  field_order = "bottom coded first (swapped)";
1334 
1335  av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1336  }
1337 
1338  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1340  av_strlcatf(detail, sizeof(detail), "%s, ",
1342 
1343  if (strlen(detail) > 1) {
1344  detail[strlen(detail) - 2] = 0;
1345  av_strlcatf(buf, buf_size, "%s)", detail);
1346  }
1347  }
1348 
1349  if (enc->width) {
1350  av_strlcat(buf, new_line ? separator : ", ", buf_size);
1351 
1352  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1353  "%dx%d",
1354  enc->width, enc->height);
1355 
1356  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1357  (enc->width != enc->coded_width ||
1358  enc->height != enc->coded_height))
1359  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1360  " (%dx%d)", enc->coded_width, enc->coded_height);
1361 
1362  if (enc->sample_aspect_ratio.num) {
1363  av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1364  enc->width * (int64_t)enc->sample_aspect_ratio.num,
1365  enc->height * (int64_t)enc->sample_aspect_ratio.den,
1366  1024 * 1024);
1367  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1368  " [SAR %d:%d DAR %d:%d]",
1370  display_aspect_ratio.num, display_aspect_ratio.den);
1371  }
1372  if (av_log_get_level() >= AV_LOG_DEBUG) {
1373  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1374  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1375  ", %d/%d",
1376  enc->time_base.num / g, enc->time_base.den / g);
1377  }
1378  }
1379  if (encode) {
1380  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1381  ", q=%d-%d", enc->qmin, enc->qmax);
1382  } else {
1384  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1385  ", Closed Captions");
1387  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1388  ", lossless");
1389  }
1390  break;
1391  case AVMEDIA_TYPE_AUDIO:
1392  av_strlcat(buf, separator, buf_size);
1393 
1394  if (enc->sample_rate) {
1395  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1396  "%d Hz, ", enc->sample_rate);
1397  }
1398  av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1399  if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1400  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1401  ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1402  }
1403  if ( enc->bits_per_raw_sample > 0
1405  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1406  " (%d bit)", enc->bits_per_raw_sample);
1407  if (av_log_get_level() >= AV_LOG_VERBOSE) {
1408  if (enc->initial_padding)
1409  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1410  ", delay %d", enc->initial_padding);
1411  if (enc->trailing_padding)
1412  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1413  ", padding %d", enc->trailing_padding);
1414  }
1415  break;
1416  case AVMEDIA_TYPE_DATA:
1417  if (av_log_get_level() >= AV_LOG_DEBUG) {
1418  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1419  if (g)
1420  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1421  ", %d/%d",
1422  enc->time_base.num / g, enc->time_base.den / g);
1423  }
1424  break;
1425  case AVMEDIA_TYPE_SUBTITLE:
1426  if (enc->width)
1427  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1428  ", %dx%d", enc->width, enc->height);
1429  break;
1430  default:
1431  return;
1432  }
1433  if (encode) {
1434  if (enc->flags & AV_CODEC_FLAG_PASS1)
1435  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1436  ", pass 1");
1437  if (enc->flags & AV_CODEC_FLAG_PASS2)
1438  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1439  ", pass 2");
1440  }
1441  bitrate = get_bit_rate(enc);
1442  if (bitrate != 0) {
1443  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1444  ", %"PRId64" kb/s", bitrate / 1000);
1445  } else if (enc->rc_max_rate > 0) {
1446  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1447  ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1448  }
1449 }
1450 
1451 const char *av_get_profile_name(const AVCodec *codec, int profile)
1452 {
1453  const AVProfile *p;
1454  if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1455  return NULL;
1456 
1457  for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1458  if (p->profile == profile)
1459  return p->name;
1460 
1461  return NULL;
1462 }
1463 
1465 {
1466  const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1467  const AVProfile *p;
1468 
1469  if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1470  return NULL;
1471 
1472  for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1473  if (p->profile == profile)
1474  return p->name;
1475 
1476  return NULL;
1477 }
1478 
1479 unsigned avcodec_version(void)
1480 {
1483  av_assert0(AV_CODEC_ID_SRT==94216);
1485 
1486  return LIBAVCODEC_VERSION_INT;
1487 }
1488 
1489 const char *avcodec_configuration(void)
1490 {
1491  return FFMPEG_CONFIGURATION;
1492 }
1493 
1494 const char *avcodec_license(void)
1495 {
1496 #define LICENSE_PREFIX "libavcodec license: "
1497  return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
1498 }
1499 
1501 {
1502  switch (codec_id) {
1503  case AV_CODEC_ID_8SVX_EXP:
1504  case AV_CODEC_ID_8SVX_FIB:
1506  case AV_CODEC_ID_ADPCM_CT:
1518  return 4;
1519  case AV_CODEC_ID_DSD_LSBF:
1520  case AV_CODEC_ID_DSD_MSBF:
1523  case AV_CODEC_ID_PCM_ALAW:
1524  case AV_CODEC_ID_PCM_MULAW:
1525  case AV_CODEC_ID_PCM_VIDC:
1526  case AV_CODEC_ID_PCM_S8:
1528  case AV_CODEC_ID_PCM_U8:
1529  case AV_CODEC_ID_SDX2_DPCM:
1530  case AV_CODEC_ID_DERF_DPCM:
1531  return 8;
1532  case AV_CODEC_ID_PCM_S16BE:
1534  case AV_CODEC_ID_PCM_S16LE:
1536  case AV_CODEC_ID_PCM_U16BE:
1537  case AV_CODEC_ID_PCM_U16LE:
1538  return 16;
1540  case AV_CODEC_ID_PCM_S24BE:
1541  case AV_CODEC_ID_PCM_S24LE:
1543  case AV_CODEC_ID_PCM_U24BE:
1544  case AV_CODEC_ID_PCM_U24LE:
1545  return 24;
1546  case AV_CODEC_ID_PCM_S32BE:
1547  case AV_CODEC_ID_PCM_S32LE:
1549  case AV_CODEC_ID_PCM_U32BE:
1550  case AV_CODEC_ID_PCM_U32LE:
1551  case AV_CODEC_ID_PCM_F32BE:
1552  case AV_CODEC_ID_PCM_F32LE:
1553  case AV_CODEC_ID_PCM_F24LE:
1554  case AV_CODEC_ID_PCM_F16LE:
1555  return 32;
1556  case AV_CODEC_ID_PCM_F64BE:
1557  case AV_CODEC_ID_PCM_F64LE:
1558  case AV_CODEC_ID_PCM_S64BE:
1559  case AV_CODEC_ID_PCM_S64LE:
1560  return 64;
1561  default:
1562  return 0;
1563  }
1564 }
1565 
1567 {
1568  static const enum AVCodecID map[][2] = {
1574  [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1575  [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1576  [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1578  [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1579  [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1580  };
1581  if (fmt < 0 || fmt >= FF_ARRAY_ELEMS(map))
1582  return AV_CODEC_ID_NONE;
1583  if (be < 0 || be > 1)
1584  be = AV_NE(1, 0);
1585  return map[fmt][be];
1586 }
1587 
1589 {
1590  switch (codec_id) {
1592  return 2;
1594  return 3;
1598  case AV_CODEC_ID_ADPCM_SWF:
1599  case AV_CODEC_ID_ADPCM_MS:
1600  return 4;
1601  default:
1602  return av_get_exact_bits_per_sample(codec_id);
1603  }
1604 }
1605 
1606 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1607  uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1608  uint8_t * extradata, int frame_size, int frame_bytes)
1609 {
1611  int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1612 
1613  /* codecs with an exact constant bits per sample */
1614  if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1615  return (frame_bytes * 8LL) / (bps * ch);
1616  bps = bits_per_coded_sample;
1617 
1618  /* codecs with a fixed packet duration */
1619  switch (id) {
1620  case AV_CODEC_ID_ADPCM_ADX: return 32;
1621  case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1622  case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1623  case AV_CODEC_ID_AMR_NB:
1624  case AV_CODEC_ID_EVRC:
1625  case AV_CODEC_ID_GSM:
1626  case AV_CODEC_ID_QCELP:
1627  case AV_CODEC_ID_RA_288: return 160;
1628  case AV_CODEC_ID_AMR_WB:
1629  case AV_CODEC_ID_GSM_MS: return 320;
1630  case AV_CODEC_ID_MP1: return 384;
1631  case AV_CODEC_ID_ATRAC1: return 512;
1632  case AV_CODEC_ID_ATRAC9:
1633  case AV_CODEC_ID_ATRAC3:
1634  if (framecount > INT_MAX/1024)
1635  return 0;
1636  return 1024 * framecount;
1637  case AV_CODEC_ID_ATRAC3P: return 2048;
1638  case AV_CODEC_ID_MP2:
1639  case AV_CODEC_ID_MUSEPACK7: return 1152;
1640  case AV_CODEC_ID_AC3: return 1536;
1641  }
1642 
1643  if (sr > 0) {
1644  /* calc from sample rate */
1645  if (id == AV_CODEC_ID_TTA)
1646  return 256 * sr / 245;
1647  else if (id == AV_CODEC_ID_DST)
1648  return 588 * sr / 44100;
1649 
1650  if (ch > 0) {
1651  /* calc from sample rate and channels */
1652  if (id == AV_CODEC_ID_BINKAUDIO_DCT) {
1653  if (sr / 22050 > 22)
1654  return 0;
1655  return (480 << (sr / 22050)) / ch;
1656  }
1657  }
1658 
1659  if (id == AV_CODEC_ID_MP3)
1660  return sr <= 24000 ? 576 : 1152;
1661  }
1662 
1663  if (ba > 0) {
1664  /* calc from block_align */
1665  if (id == AV_CODEC_ID_SIPR) {
1666  switch (ba) {
1667  case 20: return 160;
1668  case 19: return 144;
1669  case 29: return 288;
1670  case 37: return 480;
1671  }
1672  } else if (id == AV_CODEC_ID_ILBC) {
1673  switch (ba) {
1674  case 38: return 160;
1675  case 50: return 240;
1676  }
1677  }
1678  }
1679 
1680  if (frame_bytes > 0) {
1681  /* calc from frame_bytes only */
1682  if (id == AV_CODEC_ID_TRUESPEECH)
1683  return 240 * (frame_bytes / 32);
1684  if (id == AV_CODEC_ID_NELLYMOSER)
1685  return 256 * (frame_bytes / 64);
1686  if (id == AV_CODEC_ID_RA_144)
1687  return 160 * (frame_bytes / 20);
1688 
1689  if (bps > 0) {
1690  /* calc from frame_bytes and bits_per_coded_sample */
1692  return frame_bytes * 8 / bps;
1693  }
1694 
1695  if (ch > 0 && ch < INT_MAX/16) {
1696  /* calc from frame_bytes and channels */
1697  switch (id) {
1698  case AV_CODEC_ID_FASTAUDIO:
1699  return frame_bytes / (40 * ch) * 256;
1701  return (frame_bytes - 4 * ch) / (128 * ch) * 256;
1702  case AV_CODEC_ID_ADPCM_AFC:
1703  return frame_bytes / (9 * ch) * 16;
1704  case AV_CODEC_ID_ADPCM_PSX:
1705  case AV_CODEC_ID_ADPCM_DTK:
1706  return frame_bytes / (16 * ch) * 28;
1707  case AV_CODEC_ID_ADPCM_4XM:
1710  return (frame_bytes - 4 * ch) * 2 / ch;
1712  return (frame_bytes - 4) * 2 / ch;
1714  return (frame_bytes - 8) * 2;
1715  case AV_CODEC_ID_ADPCM_THP:
1717  if (extradata)
1718  return frame_bytes * 14 / (8 * ch);
1719  break;
1720  case AV_CODEC_ID_ADPCM_XA:
1721  return (frame_bytes / 128) * 224 / ch;
1723  return (frame_bytes - 6 - ch) / ch;
1724  case AV_CODEC_ID_ROQ_DPCM:
1725  return (frame_bytes - 8) / ch;
1726  case AV_CODEC_ID_XAN_DPCM:
1727  return (frame_bytes - 2 * ch) / ch;
1728  case AV_CODEC_ID_MACE3:
1729  return 3 * frame_bytes / ch;
1730  case AV_CODEC_ID_MACE6:
1731  return 6 * frame_bytes / ch;
1732  case AV_CODEC_ID_PCM_LXF:
1733  return 2 * (frame_bytes / (5 * ch));
1734  case AV_CODEC_ID_IAC:
1735  case AV_CODEC_ID_IMC:
1736  return 4 * frame_bytes / ch;
1737  }
1738 
1739  if (tag) {
1740  /* calc from frame_bytes, channels, and codec_tag */
1741  if (id == AV_CODEC_ID_SOL_DPCM) {
1742  if (tag == 3)
1743  return frame_bytes / ch;
1744  else
1745  return frame_bytes * 2 / ch;
1746  }
1747  }
1748 
1749  if (ba > 0) {
1750  /* calc from frame_bytes, channels, and block_align */
1751  int blocks = frame_bytes / ba;
1752  switch (id) {
1754  if (bps < 2 || bps > 5)
1755  return 0;
1756  return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1758  return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1760  return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1762  return blocks * ((ba - 4 * ch) * 2 / ch);
1763  case AV_CODEC_ID_ADPCM_MS:
1764  return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1766  return blocks * (ba - 16) * 2 / ch;
1767  }
1768  }
1769 
1770  if (bps > 0) {
1771  /* calc from frame_bytes, channels, and bits_per_coded_sample */
1772  switch (id) {
1773  case AV_CODEC_ID_PCM_DVD:
1774  if(bps<4 || frame_bytes<3)
1775  return 0;
1776  return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1778  if(bps<4 || frame_bytes<4)
1779  return 0;
1780  return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1781  case AV_CODEC_ID_S302M:
1782  return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1783  }
1784  }
1785  }
1786  }
1787 
1788  /* Fall back on using frame_size */
1789  if (frame_size > 1 && frame_bytes)
1790  return frame_size;
1791 
1792  //For WMA we currently have no other means to calculate duration thus we
1793  //do it here by assuming CBR, which is true for all known cases.
1794  if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1795  if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1796  return (frame_bytes * 8LL * sr) / bitrate;
1797  }
1798 
1799  return 0;
1800 }
1801 
1802 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1803 {
1804  return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1805  avctx->channels, avctx->block_align,
1806  avctx->codec_tag, avctx->bits_per_coded_sample,
1807  avctx->bit_rate, avctx->extradata, avctx->frame_size,
1808  frame_bytes);
1809 }
1810 
1812 {
1813  return get_audio_frame_duration(par->codec_id, par->sample_rate,
1814  par->channels, par->block_align,
1815  par->codec_tag, par->bits_per_coded_sample,
1816  par->bit_rate, par->extradata, par->frame_size,
1817  frame_bytes);
1818 }
1819 
1820 #if !HAVE_THREADS
1822 {
1823  return -1;
1824 }
1825 
1826 #endif
1827 
1828 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1829 {
1830  unsigned int n = 0;
1831 
1832  while (v >= 0xff) {
1833  *s++ = 0xff;
1834  v -= 0xff;
1835  n++;
1836  }
1837  *s = v;
1838  n++;
1839  return n;
1840 }
1841 
1842 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1843 {
1844  int i;
1845  for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1846  return i;
1847 }
1848 
1850 {
1851  int i;
1852  if (!codec->hw_configs || index < 0)
1853  return NULL;
1854  for (i = 0; i <= index; i++)
1855  if (!codec->hw_configs[i])
1856  return NULL;
1857  return &codec->hw_configs[index]->public;
1858 }
1859 
1860 #if FF_API_USER_VISIBLE_AVHWACCEL
1862 {
1863  return NULL;
1864 }
1865 
1867 {
1868 }
1869 #endif
1870 
1871 #if FF_API_LOCKMGR
1872 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1873 {
1874  return 0;
1875 }
1876 #endif
1877 
1878 unsigned int avpriv_toupper4(unsigned int x)
1879 {
1880  return av_toupper(x & 0xFF) +
1881  (av_toupper((x >> 8) & 0xFF) << 8) +
1882  (av_toupper((x >> 16) & 0xFF) << 16) +
1883 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1884 }
1885 
1887 {
1888  int ret;
1889 
1890  dst->owner[0] = src->owner[0];
1891  dst->owner[1] = src->owner[1];
1892 
1893  ret = av_frame_ref(dst->f, src->f);
1894  if (ret < 0)
1895  return ret;
1896 
1897  av_assert0(!dst->progress);
1898 
1899  if (src->progress &&
1900  !(dst->progress = av_buffer_ref(src->progress))) {
1901  ff_thread_release_buffer(dst->owner[0], dst);
1902  return AVERROR(ENOMEM);
1903  }
1904 
1905  return 0;
1906 }
1907 
1908 #if !HAVE_THREADS
1909 
1911 {
1912  return ff_get_format(avctx, fmt);
1913 }
1914 
1916 {
1917  f->owner[0] = f->owner[1] = avctx;
1918  return ff_get_buffer(avctx, f->f, flags);
1919 }
1920 
1922 {
1923  if (f->f)
1924  av_frame_unref(f->f);
1925 }
1926 
1928 {
1929 }
1930 
1932 {
1933 }
1934 
1935 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1936 {
1937 }
1938 
1940 {
1941  return 1;
1942 }
1943 
1945 {
1946  return 0;
1947 }
1948 
1950 {
1951 }
1952 
1953 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1954 {
1955 }
1956 
1957 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
1958 {
1959 }
1960 
1961 #endif
1962 
1964 {
1965  return !!s->internal;
1966 }
1967 
1968 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
1969  const uint8_t *end,
1970  uint32_t *av_restrict state)
1971 {
1972  int i;
1973 
1974  av_assert0(p <= end);
1975  if (p >= end)
1976  return end;
1977 
1978  for (i = 0; i < 3; i++) {
1979  uint32_t tmp = *state << 8;
1980  *state = tmp + *(p++);
1981  if (tmp == 0x100 || p == end)
1982  return p;
1983  }
1984 
1985  while (p < end) {
1986  if (p[-1] > 1 ) p += 3;
1987  else if (p[-2] ) p += 2;
1988  else if (p[-3]|(p[-1]-1)) p++;
1989  else {
1990  p++;
1991  break;
1992  }
1993  }
1994 
1995  p = FFMIN(p, end) - 4;
1996  *state = AV_RB32(p);
1997 
1998  return p + 4;
1999 }
2000 
2002 {
2003  AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
2004  if (!props)
2005  return NULL;
2006 
2007  if (size)
2008  *size = sizeof(*props);
2009 
2010  props->vbv_delay = UINT64_MAX;
2011 
2012  return props;
2013 }
2014 
2016 {
2018  AVCPBProperties *props;
2019  size_t size;
2020  int i;
2021 
2022  for (i = 0; i < avctx->nb_coded_side_data; i++)
2024  return (AVCPBProperties *)avctx->coded_side_data[i].data;
2025 
2026  props = av_cpb_properties_alloc(&size);
2027  if (!props)
2028  return NULL;
2029 
2030  tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
2031  if (!tmp) {
2032  av_freep(&props);
2033  return NULL;
2034  }
2035 
2036  avctx->coded_side_data = tmp;
2037  avctx->nb_coded_side_data++;
2038 
2040  avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
2041  avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
2042 
2043  return props;
2044 }
2045 
2047 {
2048  av_freep(&par->extradata);
2049 
2050  memset(par, 0, sizeof(*par));
2051 
2053  par->codec_id = AV_CODEC_ID_NONE;
2054  par->format = -1;
2061  par->sample_aspect_ratio = (AVRational){ 0, 1 };
2062  par->profile = FF_PROFILE_UNKNOWN;
2063  par->level = FF_LEVEL_UNKNOWN;
2064 }
2065 
2067 {
2068  AVCodecParameters *par = av_mallocz(sizeof(*par));
2069 
2070  if (!par)
2071  return NULL;
2073  return par;
2074 }
2075 
2077 {
2078  AVCodecParameters *par = *ppar;
2079 
2080  if (!par)
2081  return;
2083 
2084  av_freep(ppar);
2085 }
2086 
2088 {
2090  memcpy(dst, src, sizeof(*dst));
2091 
2092  dst->extradata = NULL;
2093  dst->extradata_size = 0;
2094  if (src->extradata) {
2096  if (!dst->extradata)
2097  return AVERROR(ENOMEM);
2098  memcpy(dst->extradata, src->extradata, src->extradata_size);
2099  dst->extradata_size = src->extradata_size;
2100  }
2101 
2102  return 0;
2103 }
2104 
2106  const AVCodecContext *codec)
2107 {
2109 
2110  par->codec_type = codec->codec_type;
2111  par->codec_id = codec->codec_id;
2112  par->codec_tag = codec->codec_tag;
2113 
2114  par->bit_rate = codec->bit_rate;
2117  par->profile = codec->profile;
2118  par->level = codec->level;
2119 
2120  switch (par->codec_type) {
2121  case AVMEDIA_TYPE_VIDEO:
2122  par->format = codec->pix_fmt;
2123  par->width = codec->width;
2124  par->height = codec->height;
2125  par->field_order = codec->field_order;
2126  par->color_range = codec->color_range;
2127  par->color_primaries = codec->color_primaries;
2128  par->color_trc = codec->color_trc;
2129  par->color_space = codec->colorspace;
2132  par->video_delay = codec->has_b_frames;
2133  break;
2134  case AVMEDIA_TYPE_AUDIO:
2135  par->format = codec->sample_fmt;
2136  par->channel_layout = codec->channel_layout;
2137  par->channels = codec->channels;
2138  par->sample_rate = codec->sample_rate;
2139  par->block_align = codec->block_align;
2140  par->frame_size = codec->frame_size;
2141  par->initial_padding = codec->initial_padding;
2142  par->trailing_padding = codec->trailing_padding;
2143  par->seek_preroll = codec->seek_preroll;
2144  break;
2145  case AVMEDIA_TYPE_SUBTITLE:
2146  par->width = codec->width;
2147  par->height = codec->height;
2148  break;
2149  }
2150 
2151  if (codec->extradata) {
2153  if (!par->extradata)
2154  return AVERROR(ENOMEM);
2155  memcpy(par->extradata, codec->extradata, codec->extradata_size);
2156  par->extradata_size = codec->extradata_size;
2157  }
2158 
2159  return 0;
2160 }
2161 
2163  const AVCodecParameters *par)
2164 {
2165  codec->codec_type = par->codec_type;
2166  codec->codec_id = par->codec_id;
2167  codec->codec_tag = par->codec_tag;
2168 
2169  codec->bit_rate = par->bit_rate;
2172  codec->profile = par->profile;
2173  codec->level = par->level;
2174 
2175  switch (par->codec_type) {
2176  case AVMEDIA_TYPE_VIDEO:
2177  codec->pix_fmt = par->format;
2178  codec->width = par->width;
2179  codec->height = par->height;
2180  codec->field_order = par->field_order;
2181  codec->color_range = par->color_range;
2182  codec->color_primaries = par->color_primaries;
2183  codec->color_trc = par->color_trc;
2184  codec->colorspace = par->color_space;
2187  codec->has_b_frames = par->video_delay;
2188  break;
2189  case AVMEDIA_TYPE_AUDIO:
2190  codec->sample_fmt = par->format;
2191  codec->channel_layout = par->channel_layout;
2192  codec->channels = par->channels;
2193  codec->sample_rate = par->sample_rate;
2194  codec->block_align = par->block_align;
2195  codec->frame_size = par->frame_size;
2196  codec->delay =
2197  codec->initial_padding = par->initial_padding;
2198  codec->trailing_padding = par->trailing_padding;
2199  codec->seek_preroll = par->seek_preroll;
2200  break;
2201  case AVMEDIA_TYPE_SUBTITLE:
2202  codec->width = par->width;
2203  codec->height = par->height;
2204  break;
2205  }
2206 
2207  if (par->extradata) {
2208  av_freep(&codec->extradata);
2210  if (!codec->extradata)
2211  return AVERROR(ENOMEM);
2212  memcpy(codec->extradata, par->extradata, par->extradata_size);
2213  codec->extradata_size = par->extradata_size;
2214  }
2215 
2216  return 0;
2217 }
2218 
2219 static unsigned bcd2uint(uint8_t bcd)
2220 {
2221  unsigned low = bcd & 0xf;
2222  unsigned high = bcd >> 4;
2223  if (low > 9 || high > 9)
2224  return 0;
2225  return low + 10*high;
2226 }
2227 
2228 int ff_alloc_timecode_sei(const AVFrame *frame, AVRational rate, size_t prefix_len,
2229  void **data, size_t *sei_size)
2230 {
2231  AVFrameSideData *sd = NULL;
2232  uint8_t *sei_data;
2233  PutBitContext pb;
2234  uint32_t *tc;
2235  int m;
2236 
2237  if (frame)
2239 
2240  if (!sd) {
2241  *data = NULL;
2242  return 0;
2243  }
2244  tc = (uint32_t*)sd->data;
2245  m = tc[0] & 3;
2246 
2247  *sei_size = sizeof(uint32_t) * 4;
2248  *data = av_mallocz(*sei_size + prefix_len);
2249  if (!*data)
2250  return AVERROR(ENOMEM);
2251  sei_data = (uint8_t*)*data + prefix_len;
2252 
2253  init_put_bits(&pb, sei_data, *sei_size);
2254  put_bits(&pb, 2, m); // num_clock_ts
2255 
2256  for (int j = 1; j <= m; j++) {
2257  uint32_t tcsmpte = tc[j];
2258  unsigned hh = bcd2uint(tcsmpte & 0x3f); // 6-bit hours
2259  unsigned mm = bcd2uint(tcsmpte>>8 & 0x7f); // 7-bit minutes
2260  unsigned ss = bcd2uint(tcsmpte>>16 & 0x7f); // 7-bit seconds
2261  unsigned ff = bcd2uint(tcsmpte>>24 & 0x3f); // 6-bit frames
2262  unsigned drop = tcsmpte & 1<<30 && !0; // 1-bit drop if not arbitrary bit
2263 
2264  /* Calculate frame number of HEVC by SMPTE ST 12-1:2014 Sec 12.2 if rate > 30FPS */
2265  if (av_cmp_q(rate, (AVRational) {30, 1}) == 1) {
2266  unsigned pc;
2267  ff *= 2;
2268  if (av_cmp_q(rate, (AVRational) {50, 1}) == 0)
2269  pc = !!(tcsmpte & 1 << 7);
2270  else
2271  pc = !!(tcsmpte & 1 << 23);
2272  ff = (ff + pc) & 0x7f;
2273  }
2274 
2275  put_bits(&pb, 1, 1); // clock_timestamp_flag
2276  put_bits(&pb, 1, 1); // units_field_based_flag
2277  put_bits(&pb, 5, 0); // counting_type
2278  put_bits(&pb, 1, 1); // full_timestamp_flag
2279  put_bits(&pb, 1, 0); // discontinuity_flag
2280  put_bits(&pb, 1, drop);
2281  put_bits(&pb, 9, ff);
2282  put_bits(&pb, 6, ss);
2283  put_bits(&pb, 6, mm);
2284  put_bits(&pb, 5, hh);
2285  put_bits(&pb, 5, 0);
2286  }
2287  flush_put_bits(&pb);
2288 
2289  return 0;
2290 }
2291 
2293 {
2294  AVRational framerate = avctx->framerate;
2295  int bits_per_coded_sample = avctx->bits_per_coded_sample;
2296  int64_t bitrate;
2297 
2298  if (!(framerate.num && framerate.den))
2299  framerate = av_inv_q(avctx->time_base);
2300  if (!(framerate.num && framerate.den))
2301  return 0;
2302 
2303  if (!bits_per_coded_sample) {
2305  bits_per_coded_sample = av_get_bits_per_pixel(desc);
2306  }
2307  bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2308  framerate.num / framerate.den;
2309 
2310  return bitrate;
2311 }
2312 
2313 int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
2314  const int * array_valid_values, int default_value)
2315 {
2316  int i = 0, ref_val;
2317 
2318  while (1) {
2319  ref_val = array_valid_values[i];
2320  if (ref_val == INT_MAX)
2321  break;
2322  if (val == ref_val)
2323  return val;
2324  i++;
2325  }
2326  /* val is not a valid value */
2327  av_log(ctx, AV_LOG_DEBUG,
2328  "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
2329  return default_value;
2330 }
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:2292
#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:1599
packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
Definition: pixfmt.h:81
AVCodecHWConfig public
This is the structure which will be returned to the user by avcodec_get_hw_config().
Definition: hwconfig.h:34
int nb_draining_errors
Definition: internal.h:197
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:2139
#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:1299
const struct AVCodec * codec
Definition: avcodec.h:540
planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:166
AVRational framerate
Definition: avcodec.h:2081
enum AVFieldOrder field_order
Video only.
Definition: codec_par.h:141
static int64_t get_bit_rate(AVCodecContext *ctx)
Definition: utils.c:502
const AVCodecDescriptor * codec_descriptor
AVCodecDescriptor.
Definition: avcodec.h:2102
planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
Definition: pixfmt.h:275
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:252
enum AVColorTransferCharacteristic color_trc
Definition: codec_par.h:148
int(* receive_packet)(struct AVCodecContext *avctx, struct AVPacket *avpkt)
Encode API with decoupled frame/packet dataflow.
Definition: codec.h:291
#define AV_NUM_DATA_POINTERS
Definition: frame.h:315
static int shift(int a, int b)
Definition: sonic.c:82
planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:245
#define FF_SUB_CHARENC_MODE_AUTOMATIC
libavcodec will select the mode itself
Definition: avcodec.h:2138
static AVMutex mutex
Definition: log.c:44
int64_t pts_correction_num_faulty_dts
Number of incorrect PTS values so far.
Definition: avcodec.h:2119
void av_buffer_unref(AVBufferRef **buf)
Free a given reference and automatically free the buffer if there are no more references to it...
Definition: buffer.c:125
unsigned int fourcc
Definition: raw.h:36
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2573
This structure describes decoded (raw) audio or video data.
Definition: frame.h:314
int av_codec_is_encoder(const AVCodec *codec)
Definition: utils.c:96
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:100
planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:249
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:159
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Copy the contents of src to dst.
Definition: utils.c:2087
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:719
AVPacket * last_pkt_props
Properties (timestamps+side data) extracted from the last packet passed for decoding.
Definition: internal.h:147
const char * desc
Definition: libsvtav1.c:79
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
misc image utilities
static void put_bits(Jpeg2000EncoderContext *s, int val, int n)
put n times val bit
Definition: j2kenc.c:218
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:200
AVFrame * f
Definition: thread.h:35
int64_t bit_rate
the average bitrate
Definition: avcodec.h:581
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), 12b alpha, little-endian ...
Definition: pixfmt.h:346
AVFrame * to_free
Definition: internal.h:134
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
uint8_t pi<< 24) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_U8,(uint64_t)((*(const uint8_t *) pi-0x80U))<< 56) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16,(*(const int16_t *) pi >>8)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_S16,*(const int16_t *) pi *(1<< 16)) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S16,(uint64_t)(*(const int16_t *) pi)<< 48) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16,*(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16,*(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32,(*(const int32_t *) pi >>24)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S32,(uint64_t)(*(const int32_t *) pi)<< 32) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32,*(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32,*(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S64,(*(const int64_t *) pi >>56)+0x80) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S64,*(const int64_t *) pi *(1.0f/(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64,*(const int64_t *) pi *(1.0/(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(const float *) pi *(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(const double *) pi *(UINT64_C(1)<< 63)))#define FMT_PAIR_FUNC(out, in) static conv_func_type *const fmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB *AV_SAMPLE_FMT_NB]={FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64),};static void cpy1(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, len);}static void cpy2(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 2 *len);}static void cpy4(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 4 *len);}static void cpy8(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 8 *len);}AudioConvert *swri_audio_convert_alloc(enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, const int *ch_map, int flags){AudioConvert *ctx;conv_func_type *f=fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt)+AV_SAMPLE_FMT_NB *av_get_packed_sample_fmt(in_fmt)];if(!f) return NULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) return NULL;if(channels==1){in_fmt=av_get_planar_sample_fmt(in_fmt);out_fmt=av_get_planar_sample_fmt(out_fmt);}ctx->channels=channels;ctx->conv_f=f;ctx->ch_map=ch_map;if(in_fmt==AV_SAMPLE_FMT_U8||in_fmt==AV_SAMPLE_FMT_U8P) memset(ctx->silence, 0x80, sizeof(ctx->silence));if(out_fmt==in_fmt &&!ch_map){switch(av_get_bytes_per_sample(in_fmt)){case 1:ctx->simd_f=cpy1;break;case 2:ctx->simd_f=cpy2;break;case 4:ctx->simd_f=cpy4;break;case 8:ctx->simd_f=cpy8;break;}}if(HAVE_X86ASM &&1) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);return ctx;}void swri_audio_convert_free(AudioConvert **ctx){av_freep(ctx);}int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len){int ch;int off=0;const int os=(out->planar?1:out->ch_count)*out->bps;unsigned misaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask){int planes=in->planar?in->ch_count:1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;}if(ctx->out_simd_align_mask){int planes=out->planar?out->ch_count:1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;}if(ctx->simd_f &&!ctx->ch_map &&!misaligned){off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){if(out->planar==in->planar){int planes=out->planar?out->ch_count:1;for(ch=0;ch< planes;ch++){ctx->simd_f(out->ch+ch,(const uint8_t **) in->ch+ch, off *(out-> planar
Definition: audioconvert.c:56
const char * g
Definition: vf_curves.c:115
#define LIBAVCODEC_VERSION_MICRO
Definition: version.h:32
planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:162
int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
Return the number of bits per pixel used by the pixel format described by pixdesc.
Definition: pixdesc.c:2525
int(* receive_frame)(struct AVCodecContext *avctx, struct AVFrame *frame)
Decode API with decoupled packet/frame dataflow.
Definition: codec.h:298
AVRational sample_aspect_ratio
Video only.
Definition: codec_par.h:136
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:1437
void(* flush)(struct AVCodecContext *)
Flush buffers.
Definition: codec.h:303
#define AV_CODEC_CAP_ENCODER_FLUSH
This encoder can be flushed using avcodec_flush_buffers().
Definition: codec.h:171
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:250
void av_opt_set_defaults(void *s)
Set the values of all AVOption fields to their default values.
Definition: opt.c:1357
const char * avcodec_configuration(void)
Return the libavcodec build-time configuration.
Definition: utils.c:1489
uint32_t fourcc
Definition: vaapi_decode.c:239
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:1166
int ff_decode_bsfs_init(AVCodecContext *avctx)
Called during avcodec_open2() to initialize avctx->internal->bsf.
Definition: decode.c:214
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: codec_par.h:60
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
int num
Numerator.
Definition: rational.h:59
Timecode which conforms to SMPTE ST 12-1.
Definition: frame.h:168
static int ff_mutex_lock(AVMutex *mutex)
Definition: thread.h:168
#define FF_SUB_CHARENC_MODE_DO_NOTHING
do nothing (demuxer outputs a stream supposed to be already in UTF-8, or the codec is bitmap for inst...
Definition: avcodec.h:2137
static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
Definition: utils.c:526
int av_codec_is_decoder(const AVCodec *codec)
Definition: utils.c:101
const char * avcodec_license(void)
Return the libavcodec license.
Definition: utils.c:1494
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown) That is the width of a pixel divided by the height of the pixel...
Definition: avcodec.h:910
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition: pixfmt.h:189
double, planar
Definition: samplefmt.h:70
enum AVMediaType codec_type
Definition: rtp.c:37
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:36
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:741
#define tc
Definition: regdef.h:69
enum AVPixelFormat pix_fmt
Definition: raw.h:35
int av_dict_copy(AVDictionary **dst, const AVDictionary *src, int flags)
Copy entries from one AVDictionary struct into another.
Definition: dict.c:217
enum AVPixelFormat format
The pixel format identifying the underlying HW surface type.
Definition: hwcontext.h:209
unsigned num_rects
Definition: avcodec.h:2710
int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec)
Definition: utils.c:498
void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
Same behaviour av_fast_malloc but the buffer has additional AV_INPUT_BUFFER_PADDING_SIZE at the end w...
Definition: utils.c:72
planar GBR 4:4:4 36bpp, little-endian
Definition: pixfmt.h:255
The following 12 formats have the disadvantage of needing 1 format for each bit depth.
Definition: pixfmt.h:156
#define AV_CODEC_CAP_EXPERIMENTAL
Codec is experimental and is thus avoided in favor of non experimental encoders.
Definition: codec.h:98
mpegvideo header.
enum AVMediaType type
Definition: codec.h:203
#define AV_CODEC_CAP_CHANNEL_CONF
Codec should fill in channel configuration and samplerate instead of container.
Definition: codec.h:102
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:237
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:1762
enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
Wrapper around get_format() for frame-multithreaded codecs.
Definition: utils.c:1910
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:1872
int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
Converts AVChromaLocation to swscale x/y chroma position.
Definition: utils.c:355
#define AV_CODEC_CAP_AUTO_THREADS
Codec supports avctx->thread_count == 0 (auto).
Definition: codec.h:118
const struct AVHWAccel * hwaccel
Hardware accelerator in use.
Definition: avcodec.h:1695
void av_bsf_flush(AVBSFContext *ctx)
Reset the internal bitstream filter state.
Definition: bsf.c:188
int trailing_padding
Audio only.
Definition: codec_par.h:196
int profile
profile
Definition: avcodec.h:1871
planar GBR 4:4:4 36bpp, big-endian
Definition: pixfmt.h:254
AVCodec.
Definition: codec.h:190
planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:131
int framerate
Definition: h264_levels.c:65
int block_align
number of bytes per packet if constant and known or 0 Used by some WAV based audio codecs...
Definition: avcodec.h:1228
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
This struct describes the properties of an encoded stream.
Definition: codec_par.h:52
AVLockOp
Lock operation used by lockmgr.
Definition: avcodec.h:4098
int ff_set_dimensions(AVCodecContext *s, int width, int height)
Check that the provided frame dimensions are valid and set them on the codec context.
Definition: utils.c:106
char * text
0 terminated plain UTF-8 text
Definition: avcodec.h:2694
enum AVColorSpace color_space
Definition: codec_par.h:149
const char * av_color_space_name(enum AVColorSpace space)
Definition: pixdesc.c:2966
Macro definitions for various function/variable attributes.
int frame_size
Audio only.
Definition: codec_par.h:181
static AVMutex codec_mutex
Definition: utils.c:70
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:654
int av_get_channel_layout_nb_channels(uint64_t channel_layout)
Return the number of channels in the channel layout.
AVFrameSideData * av_frame_get_side_data(const AVFrame *frame, enum AVFrameSideDataType type)
Definition: frame.c:738
AVSubtitleRect ** rects
Definition: avcodec.h:2711
int(* uninit)(AVCodecContext *avctx)
Uninitialize the hwaccel private data.
Definition: avcodec.h:2560
void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
Definition: utils.c:1953
int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels, enum AVSampleFormat sample_fmt, const uint8_t *buf, int buf_size, int align)
Fill AVFrame audio data and linesize pointers.
Definition: utils.c:378
uint64_t vbv_delay
The delay between the time the packet this structure is associated with is received and the time when...
Definition: avcodec.h:495
planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), little-endian ...
Definition: pixfmt.h:179
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
Modify width and height values so that they will result in a memory buffer that is acceptable for the...
Definition: utils.c:340
#define FF_LEVEL_UNKNOWN
Definition: avcodec.h:1995
#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:2366
void av_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
Definition: avpacket.c:64
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), 12b alpha, little-endian ...
Definition: pixfmt.h:344
enum AVSampleFormat sample_fmt
audio sample format
Definition: avcodec.h:1199
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_cold
Definition: attributes.h:88
AV_SAMPLE_FMT_U8
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:190
Opaque data information usually continuous.
Definition: avutil.h:203
int width
Video only.
Definition: codec_par.h:126
#define AV_CODEC_EXPORT_DATA_MVS
Export motion vectors through frame side data.
Definition: avcodec.h:403
8 bits with AV_PIX_FMT_RGB32 palette
Definition: pixfmt.h:77
AVOptions.
#define f(width, name)
Definition: cbs_vp9.c:255
const char * av_color_range_name(enum AVColorRange range)
Definition: pixdesc.c:2899
void * thread_ctx
Definition: internal.h:138
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:92
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
int ff_side_data_update_matrix_encoding(AVFrame *frame, enum AVMatrixEncoding matrix_encoding)
Add or update AV_FRAME_DATA_MATRIXENCODING side data.
Definition: utils.c:136
int trailing_padding
Audio only.
Definition: avcodec.h:2260
Multithreading support functions.
#define AV_NE(be, le)
Definition: common.h:50
int av_frame_ref(AVFrame *dst, const AVFrame *src)
Set up a new reference to the data described by the source frame.
Definition: frame.c:443
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:251
AVCodecParameters * avcodec_parameters_alloc(void)
Allocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0).
Definition: utils.c:2066
#define FF_CODEC_PROPERTY_LOSSLESS
Definition: avcodec.h:2204
#define LIBAVCODEC_VERSION_INT
Definition: version.h:34
int(* encode2)(struct AVCodecContext *avctx, struct AVPacket *avpkt, const struct AVFrame *frame, int *got_packet_ptr)
Encode data to an AVPacket.
Definition: codec.h:282
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:632
#define LICENSE_PREFIX
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_RB32
Definition: bytestream.h:91
int avcodec_parameters_to_context(AVCodecContext *codec, const AVCodecParameters *par)
Fill the codec context based on the values from the supplied codec parameters.
Definition: utils.c:2162
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:2015
Public header for CRC hash function implementation.
void * frame_thread_encoder
Definition: internal.h:157
int initial_padding
Audio only.
Definition: codec_par.h:189
Structure to hold side data for an AVFrame.
Definition: frame.h:220
int av_image_check_sar(unsigned int w, unsigned int h, AVRational sar)
Check if the given sample aspect ratio of an image is valid.
Definition: imgutils.c:322
planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), big-endian
Definition: pixfmt.h:276
planar GBR 4:4:4 48bpp, big-endian
Definition: pixfmt.h:174
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:100
uint32_t tag
Definition: movenc.c:1597
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:194
void av_memcpy_backptr(uint8_t *dst, int back, int cnt)
Overlapping memcpy() implementation.
Definition: mem.c:428
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:210
uint8_t * data
Definition: packet.h:307
static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba, uint32_t tag, int bits_per_coded_sample, int64_t bitrate, uint8_t *extradata, int frame_size, int frame_bytes)
Definition: utils.c:1606
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
Definition: avcodec.h:1770
int av_codec_get_max_lowres(const AVCodec *codec)
Definition: utils.c:492
enum AVSampleFormat av_get_planar_sample_fmt(enum AVSampleFormat sample_fmt)
Get the planar alternative form of the given sample format.
Definition: samplefmt.c:84
static unsigned bcd2uint(uint8_t bcd)
Definition: utils.c:2219
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:1842
ptrdiff_t size
Definition: opengl_enc.c:100
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
Definition: rational.c:35
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
Definition: avcodec.h:1755
planar YUV 4:4:0,24bpp, (1 Cr & Cb sample per 1x2 Y samples), big-endian
Definition: pixfmt.h:278
int ff_set_sar(AVCodecContext *avctx, AVRational sar)
Check that the provided sample aspect ratio is valid and set it on the codec context.
Definition: utils.c:121
#define AV_CODEC_FLAG_GRAY
Only decode/encode grayscale.
Definition: avcodec.h:308
channels
Definition: aptx.h:33
signed 32 bits
Definition: samplefmt.h:62
void * av_realloc_array(void *ptr, size_t nmemb, size_t size)
Definition: mem.c:198
AVCPBProperties * av_cpb_properties_alloc(size_t *size)
Allocate a CPB properties structure and initialize its fields to default values.
Definition: utils.c:2001
enum AVChromaLocation chroma_sample_location
This defines the location of chroma samples.
Definition: avcodec.h:1173
static void codec_parameters_reset(AVCodecParameters *par)
Definition: utils.c:2046
#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:2076
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:1598
void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, int linesize_align[AV_NUM_DATA_POINTERS])
Modify width and height values so that they will result in a memory buffer that is acceptable for the...
Definition: utils.c:156
static void * av_x_if_null(const void *p, const void *x)
Return x default pointer in case p is NULL.
Definition: avutil.h:308
void av_register_hwaccel(AVHWAccel *hwaccel)
Register the hardware accelerator hwaccel.
Definition: utils.c:1866
planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:157
AVPacketList * pkt_props_tail
Definition: internal.h:149
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:1147
AVBSFContext * bsf
Definition: internal.h:141
enum AVCodecID id
Definition: codec.h:204
const uint64_t * channel_layouts
array of support channel layouts, or NULL if unknown. array is terminated by 0
Definition: codec.h:214
planar GBR 4:4:4 27bpp, big-endian
Definition: pixfmt.h:170
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:165
const char * av_chroma_location_name(enum AVChromaLocation location)
Definition: pixdesc.c:2990
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:176
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: codec_id.h:46
unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
Definition: utils.c:487
int width
Definition: frame.h:372
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:194
int has_b_frames
Size of the frame reordering buffer in the decoder.
Definition: avcodec.h:821
int av_get_bits_per_sample(enum AVCodecID codec_id)
Return codec bits per sample.
Definition: utils.c:1588
#define AVMutex
Definition: thread.h:164
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
const struct AVCodecHWConfigInternal *const * hw_configs
Array of pointers to hardware configurations supported by the codec, or NULL if no hardware supported...
Definition: codec.h:323
int ff_int_from_list_or_default(void *ctx, const char *val_name, int val, const int *array_valid_values, int default_value)
Check if a value is in the list.
Definition: utils.c:2313
#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
unsigned int avpriv_toupper4(unsigned int x)
Definition: utils.c:1878
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:1380
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this field
int64_t pts_correction_last_pts
Number of incorrect DTS values so far.
Definition: avcodec.h:2120
AVFrame * in_frame
Definition: internal.h:116
int active_thread_type
Which multithreading methods are in use by the codec.
Definition: avcodec.h:1809
enum AVColorPrimaries color_primaries
Definition: codec_par.h:147
int avcodec_is_open(AVCodecContext *s)
Definition: utils.c:1963
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:451
AVFrame * buffer_frame
Definition: internal.h:180
int capabilities
Codec capabilities.
Definition: codec.h:209
int initial_padding
Audio only.
Definition: avcodec.h:2072
unsigned int pos
Definition: spdifenc.c:410
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:215
int ff_thread_init(AVCodecContext *s)
Definition: utils.c:1821
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:419
#define av_fourcc2str(fourcc)
Definition: avutil.h:348
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), big-endian
Definition: pixfmt.h:182
enum AVMediaType codec_type
General type of the encoded data.
Definition: codec_par.h:56
const char * arg
Definition: jacosubdec.c:66
planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:161
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:611
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
Definition: allcodecs.c:934
simple assert() macros that are a bit more flexible than ISO C assert().
planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:248
int64_t av_gcd(int64_t a, int64_t b)
Compute the greatest common divisor of two integer operands.
Definition: mathematics.c:37
enum AVPacketSideDataType type
Definition: packet.h:309
int av_log_get_level(void)
Get the current log level.
Definition: log.c:435
const char * name
Name of the codec implementation.
Definition: codec.h:197
planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:134
const char * av_get_sample_fmt_name(enum AVSampleFormat sample_fmt)
Return the name of sample_fmt, or NULL if sample_fmt is not recognized.
Definition: samplefmt.c:49
int64_t max_pixels
The number of pixels per image to maximally accept.
Definition: avcodec.h:2268
const struct AVProfile * profiles
If non-NULL, an array of profiles recognized for this codec.
Definition: codec_desc.h:65
int ff_alloc_timecode_sei(const AVFrame *frame, AVRational rate, size_t prefix_len, void **data, size_t *sei_size)
Check AVFrame for S12M timecode side data and allocate and fill TC SEI message with timecode info...
Definition: utils.c:2228
GLsizei count
Definition: opengl_enc.c:108
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), little-endian
Definition: pixfmt.h:183
void ff_thread_free(AVCodecContext *avctx)
Definition: pthread.c:82
#define FFMAX(a, b)
Definition: common.h: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:1811
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: codec.h:106
const char av_codec_ffversion[]
Definition: utils.c:68
static int ff_mutex_unlock(AVMutex *mutex)
Definition: thread.h:169
const char * av_color_primaries_name(enum AVColorPrimaries primaries)
Definition: pixdesc.c:2918
reference-counted frame API
uint64_t channel_layout
Audio channel layout.
Definition: avcodec.h:1242
int extradata_size
Size of the extradata content in bytes.
Definition: codec_par.h:78
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
Definition: pixfmt.h:184
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
int rc_buffer_size
decoder bitstream buffer size
Definition: avcodec.h:1394
int props
Codec properties, a combination of AV_CODEC_PROP_* flags.
Definition: codec_desc.h:54
int ff_frame_thread_encoder_init(AVCodecContext *avctx, AVDictionary *options)
common internal API header
#define FF_MAX_EXTRADATA_SIZE
Maximum size in bytes of extradata.
Definition: internal.h:230
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:106
int refs
number of reference frames
Definition: avcodec.h:1119
planar GBR 4:4:4:4 48bpp, big-endian
Definition: pixfmt.h:287
int block_align
Audio only.
Definition: codec_par.h:177
#define ss(width, name, subs,...)
Definition: cbs_vp9.c:261
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
#define b
Definition: input.c:41
#define AV_MUTEX_INITIALIZER
Definition: thread.h:165
audio channel layout utility functions
enum AVPixelFormat * pix_fmts
array of supported pixel formats, or NULL if unknown, array is terminated by -1
Definition: codec.h:211
#define FF_THREAD_FRAME
Decode more than one frame at once.
Definition: avcodec.h:1801
#define FFMIN(a, b)
Definition: common.h:96
AVPacketSideData * coded_side_data
Additional data associated with the entire coded stream.
Definition: avcodec.h:2213
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:1500
AVFrame * compat_decode_frame
Definition: internal.h:189
void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
Definition: utils.c:1957
int width
picture width / height.
Definition: avcodec.h:704
static void ff_unlock_avcodec(const AVCodec *codec)
Definition: utils.c:532
AVBufferRef * hw_frames_ctx
A reference to the AVHWFramesContext describing the input (for encoding) or output (decoding) frames...
Definition: avcodec.h:2238
#define FF_PROFILE_UNKNOWN
Definition: avcodec.h:1872
int priv_data_size
Definition: codec.h:238
int profile
Definition: codec.h:177
AVPacket * in_pkt
Definition: internal.h:112
AVFormatContext * ctx
Definition: movenc.c:48
#define AV_CODEC_FLAG_PASS1
Use internal 2pass ratecontrol in first pass mode.
Definition: avcodec.h:296
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:1145
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:188
packed YUV 4:2:2, 16bpp, Y0 Cr Y1 Cb
Definition: pixfmt.h:210
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
#define s(width, name)
Definition: cbs_vp9.c:257
int level
level
Definition: avcodec.h:1994
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:1927
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), big-endian
Definition: pixfmt.h:180
const AVProfile * profiles
array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN} ...
Definition: codec.h:217
unsigned 8 bits, planar
Definition: samplefmt.h:66
int ticks_per_frame
For some codecs, the time base is closer to the field rate than the frame rate.
Definition: avcodec.h:663
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:69
planar YUV 4:2:0,18bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:243
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:158
enum AVCodecID codec_id
Definition: vaapi_decode.c:369
enum AVColorRange color_range
Video only.
Definition: codec_par.h:146
Usually treated as AVMEDIA_TYPE_DATA.
Definition: avutil.h:200
Opaque data information usually sparse.
Definition: avutil.h:205
const char * av_get_colorspace_name(enum AVColorSpace val)
Get the name of a colorspace.
Definition: frame.c:123
DecodeSimpleContext ds
Definition: internal.h:140
enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags, unsigned int fourcc)
Definition: utils.c:469
char * sub_charenc
DTS of the last frame.
Definition: avcodec.h:2128
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:2689
int draining
checks API usage: after codec draining, flush is required to resume operation
Definition: internal.h:174
#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:1790
Full range content.
Definition: pixfmt.h:586
int sub_charenc_mode
Subtitles character encoding mode.
Definition: avcodec.h:2136
if(ret)
void av_get_channel_layout_string(char *buf, int buf_size, int nb_channels, uint64_t channel_layout)
Return a description of a channel layout.
planar GBR 4:4:4:4 48bpp, little-endian
Definition: pixfmt.h:288
void avcodec_flush_buffers(AVCodecContext *avctx)
Reset the internal codec state / flush internal buffers.
Definition: utils.c:1079
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:387
AVBufferRef * progress
Definition: thread.h:39
const char * av_get_profile_name(const AVCodec *codec, int profile)
Return a name for the specified profile, if available.
Definition: utils.c:1451
int frame_size
Number of samples per channel in an audio frame.
Definition: avcodec.h:1211
This structure describes the bitrate properties of an encoded bitstream.
Definition: avcodec.h:453
AVPacketList * pkt_props
Definition: internal.h:148
int(* decode)(struct AVCodecContext *, void *outdata, int *outdata_size, struct AVPacket *avpkt)
Definition: codec.h:284
packed RGB 3:3:2, 8bpp, (msb)2B 3G 3R(lsb)
Definition: pixfmt.h:83
static int width
Definition: utils.c:158
planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:132
int frame_size
Definition: mxfenc.c:2166
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:1861
int avcodec_default_get_buffer2(AVCodecContext *s, AVFrame *frame, int flags)
The default callback for AVCodecContext.get_buffer2().
Definition: decode.c:1668
Libavcodec external API header.
enum AVMediaType codec_type
Definition: avcodec.h:539
AVSampleFormat
Audio sample formats.
Definition: samplefmt.h:58
EncodeSimpleContext es
Definition: internal.h:159
enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
Return the PCM codec associated with a sample format.
Definition: utils.c:1566
enum AVCodecID codec_id
Definition: avcodec.h:541
int seek_preroll
Number of samples to skip after a discontinuity.
Definition: avcodec.h:2161
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:1191
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:345
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:177
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
const AVCodecHWConfig * avcodec_get_hw_config(const AVCodec *codec, int index)
Retrieve supported hardware configurations for a codec.
Definition: utils.c:1849
planar GBR 4:4:4 30bpp, big-endian
Definition: pixfmt.h:172
main external API structure.
Definition: avcodec.h:531
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:606
int skip_samples_multiplier
Definition: internal.h:194
planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
Definition: pixfmt.h:192
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it be(in the first position) for now.Options-------Then comes the options array.This is what will define the user accessible options.For example
uint8_t * data
The data buffer.
Definition: buffer.h:89
int qmin
minimum quantizer
Definition: avcodec.h:1373
void avsubtitle_free(AVSubtitle *sub)
Free all allocated data in the given subtitle struct.
Definition: utils.c:1128
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> (&#39;D&#39;<<24) + (&#39;C&#39;<<16) + (&#39;B&#39;<<8) + &#39;A&#39;).
Definition: avcodec.h:556
packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
Definition: pixfmt.h:67
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
Definition: decode.c:1879
static void encode(AVCodecContext *ctx, AVFrame *frame, AVPacket *pkt, FILE *output)
Definition: encode_audio.c:95
uint8_t * data
Definition: frame.h:222
planar YUV 4:4:0,24bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
Definition: pixfmt.h:277
#define AV_CODEC_PROP_BITMAP_SUB
Subtitle codec is bitmap based Decoded AVSubtitle data can be read from the AVSubtitleRect->pict fiel...
Definition: codec_desc.h:97
planar GBR 4:4:4 42bpp, little-endian
Definition: pixfmt.h:257
int extradata_size
Definition: avcodec.h:633
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
Encode extradata length to a buffer.
Definition: utils.c:1828
int nb_coded_side_data
Definition: avcodec.h:2214
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
Definition: pixfmt.h:193
AVCodecContext * owner[2]
Definition: thread.h:36
int coded_height
Definition: avcodec.h:719
int(* func)(AVBPrint *dst, const char *in, const char *arg)
Definition: jacosubdec.c:67
Describe the class of an AVClass context structure.
Definition: log.h:67
AVPacket * compat_encode_packet
Definition: internal.h:190
#define FF_CODEC_PROPERTY_CLOSED_CAPTIONS
Definition: avcodec.h:2205
int(* get_buffer2)(struct AVCodecContext *s, AVFrame *frame, int flags)
This callback is called at the beginning of each frame to get data buffer(s) for it.
Definition: avcodec.h:1346
int(* init)(struct AVCodecContext *)
Definition: codec.h:269
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition: pixfmt.h:195
AVFrameSideData * av_frame_new_side_data(AVFrame *frame, enum AVFrameSideDataType type, int size)
Add a new side data to a frame.
Definition: frame.c:726
static av_const int av_toupper(int c)
Locale-independent conversion of ASCII characters to uppercase.
Definition: avstring.h:236
Y , 16bpp, big-endian.
Definition: pixfmt.h:97
int index
Definition: gxfenc.c:89
int av_samples_get_buffer_size(int *linesize, int nb_channels, int nb_samples, enum AVSampleFormat sample_fmt, int align)
Get the required buffer size for the given audio parameters.
Definition: samplefmt.c:119
enum AVColorSpace colorspace
YUV colorspace type.
Definition: avcodec.h:1159
Rational number (pair of numerator and denominator).
Definition: rational.h:58
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:1152
void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
Wrapper around release_buffer() frame-for multithreaded codecs.
Definition: utils.c:1921
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:2105
This struct describes a set or pool of "hardware" frames (i.e.
Definition: hwcontext.h:124
planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:244
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), 12b alpha, big-endian ...
Definition: pixfmt.h:345
size_t av_strlcatf(char *dst, size_t size, const char *fmt,...)
Definition: avstring.c:101
planar GBR 4:4:4 42bpp, big-endian
Definition: pixfmt.h:256
char * codec_whitelist
&#39;,&#39; separated list of allowed decoders.
Definition: avcodec.h:2196
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:538
#define snprintf
Definition: snprintf.h:34
int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
Return audio frame duration.
Definition: utils.c:1802
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:1362
AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
Definition: allcodecs.c:939
AVBufferRef * pool
Definition: internal.h:136
size_t av_strlcat(char *dst, const char *src, size_t size)
Append the string src to the string dst, but to a total length of no more than size - 1 bytes...
Definition: avstring.c:93
mfxU16 profile
Definition: qsvenc.c:45
int seek_preroll
Audio only.
Definition: codec_par.h:200
This struct describes the properties of a single codec described by an AVCodecID. ...
Definition: codec_desc.h:38
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:553
const char * av_get_media_type_string(enum AVMediaType media_type)
Return a string describing the media_type enum, NULL if media_type is unknown.
Definition: utils.c:76
planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
Definition: pixfmt.h:187
#define flags(name, subs,...)
Definition: cbs_av1.c:560
int bits_per_raw_sample
This is the number of valid bits in each output sample.
Definition: codec_par.h:115
const AVClass * priv_class
AVClass for the private context.
Definition: codec.h:216
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:328
planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:163
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:135
int av_get_bytes_per_sample(enum AVSampleFormat sample_fmt)
Return number of bytes per sample.
Definition: samplefmt.c:106
void ff_color_frame(AVFrame *frame, const int c[4])
Definition: utils.c:414
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
Definition: rational.h:159
int sample_rate
Audio only.
Definition: codec_par.h:170
enum AVMediaType type
Definition: codec_desc.h:40
uint8_t max_lowres
maximum value for lowres supported by the decoder
Definition: codec.h:215
AVPacket * buffer_pkt
buffers for using new encode/decode API through legacy API
Definition: internal.h:179
int64_t bitrate
Definition: h264_levels.c:131
static int av_cmp_q(AVRational a, AVRational b)
Compare two rationals.
Definition: rational.h:89
static int op(uint8_t **dst, const uint8_t *dst_end, GetByteContext *gb, int pixel, int count, int *x, int width, int linesize)
Perform decode operation.
Definition: anm.c:75
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:247
Y , 8bpp.
Definition: pixfmt.h:74
void av_opt_free(void *obj)
Free all allocated objects in obj.
Definition: opt.c:1610
const OptionDef options[]
Definition: ffmpeg_opt.c:3400
#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:367
static void flush_put_bits(PutBitContext *s)
Pad the end of the output stream with zeros.
Definition: put_bits.h:117
static struct @323 state
#define FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM
The decoder extracts and fills its parameters even if the frame is skipped due to the skip_frame sett...
Definition: internal.h:60
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:215
signed 16 bits
Definition: samplefmt.h:61
planar GBR 4:4:4 27bpp, little-endian
Definition: pixfmt.h:171
int profile
Codec-specific bitstream restrictions that the stream conforms to.
Definition: codec_par.h:120
const char * av_color_transfer_name(enum AVColorTransferCharacteristic transfer)
Definition: pixdesc.c:2942
int(* encode_sub)(struct AVCodecContext *, uint8_t *buf, int buf_size, const struct AVSubtitle *sub)
Definition: codec.h:270
void * hwaccel_priv_data
hwaccel-specific private data
Definition: internal.h:169
void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
Same behaviour av_fast_padded_malloc except that buffer will always be 0-initialized after call...
Definition: utils.c:84
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
AVProfile.
Definition: codec.h:176
planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:133
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
int ff_thread_can_start_frame(AVCodecContext *avctx)
Definition: utils.c:1939
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:1781
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:1931
packed RGB 3:3:2, 8bpp, (msb)2R 3G 3B(lsb)
Definition: pixfmt.h:86
static const uint64_t c2
Definition: murmur3.c:52
#define AV_PIX_FMT_RGB555
Definition: pixfmt.h:387
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
int caps_internal
Internal codec capabilities.
Definition: codec.h:308
const char * avcodec_get_name(enum AVCodecID id)
Get the name of a codec.
Definition: utils.c:1214
unsigned properties
Properties of the stream that gets decoded.
Definition: avcodec.h:2203
attribute_deprecated int thread_safe_callbacks
Set by the client if its custom get_buffer() callback can be called synchronously from another thread...
Definition: avcodec.h:1825
static void init_put_bits(PutBitContext *s, uint8_t *buffer, int buffer_size)
Initialize the PutBitContext s.
Definition: put_bits.h:64
int den
Denominator.
Definition: rational.h:60
int avcodec_default_execute2(AVCodecContext *c, int(*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
Definition: utils.c:456
int av_image_check_size2(unsigned int w, unsigned int h, int64_t max_pixels, enum AVPixelFormat pix_fmt, int log_offset, void *log_ctx)
Check if the given dimension of an image is valid, meaning that all bytes of a plane of an image with...
Definition: imgutils.c:288
unsigned bps
Definition: movenc.c:1598
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition: pixfmt.h:185
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
Definition: avcodec.h:215
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
Definition: utils.c:1256
#define AV_CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:300
static int lowres
Definition: ffplay.c:336
void * priv_data
Definition: avcodec.h:558
size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
Put a string representing the codec tag codec_tag in buf.
Definition: utils.c:1235
int(* close)(struct AVCodecContext *)
Definition: codec.h:285
int av_samples_fill_arrays(uint8_t **audio_data, int *linesize, const uint8_t *buf, int nb_channels, int nb_samples, enum AVSampleFormat sample_fmt, int align)
Fill plane data pointers and linesize for samples with sample format sample_fmt.
Definition: samplefmt.c:151
void ff_thread_flush(AVCodecContext *avctx)
Wait for decoding threads to finish and reset internal state.
uint8_t * dump_separator
dump format separator.
Definition: avcodec.h:2188
int ff_thread_ref_frame(ThreadFrame *dst, const ThreadFrame *src)
Definition: utils.c:1886
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:85
#define TAG_PRINT(x)
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:253
as in Berlin toast format
Definition: codec_id.h:436
int len
int channels
number of audio channels
Definition: avcodec.h:1192
const int * supported_samplerates
array of supported audio samplerates, or NULL if unknown, array is terminated by 0 ...
Definition: codec.h:212
struct AVCodecInternal * internal
Private context used for internal data.
Definition: avcodec.h:566
unsigned avcodec_version(void)
Return the LIBAVCODEC_VERSION_INT constant.
Definition: utils.c:1479
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:2701
This side data corresponds to the AVCPBProperties struct.
Definition: packet.h:145
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:258
Not part of ABI.
Definition: pixfmt.h:613
signed 64 bits, planar
Definition: samplefmt.h:72
const AVCodecDescriptor * avcodec_descriptor_get(enum AVCodecID id)
Definition: codec_desc.c:3457
int flags2
AV_CODEC_FLAG2_*.
Definition: avcodec.h:618
int bits_per_coded_sample
The number of bits per sample in the codedwords.
Definition: codec_par.h:102
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: codec_par.h:74
static const struct twinvq_data tab
unsigned int byte_buffer_size
Definition: internal.h:155
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:1935
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:2121
int frame_number
Frame counter, set by libavcodec.
Definition: avcodec.h:1222
int height
Definition: frame.h:372
void ff_frame_thread_encoder_free(AVCodecContext *avctx)
#define av_freep(p)
int64_t pts_correction_num_faulty_pts
Current statistics for PTS correction.
Definition: avcodec.h:2118
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
enum AVFieldOrder field_order
Field order.
Definition: avcodec.h:1188
signed 16 bits, planar
Definition: samplefmt.h:67
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:605
static float sub(float src0, float src1)
void av_bsf_free(AVBSFContext **pctx)
Free a bitstream filter context and everything associated with it; write NULL into the supplied point...
Definition: bsf.c:40
planar GBR 4:4:4 48bpp, little-endian
Definition: pixfmt.h:175
enum AVSampleFormat * sample_fmts
array of supported sample formats, or NULL if unknown, array is terminated by -1
Definition: codec.h:213
AVMatrixEncoding
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
Definition: utils.c:1915
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:1944
int nb_channels
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
Definition: pixdesc.c:2489
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), little-endian
Definition: pixfmt.h:181
const uint8_t * avpriv_find_start_code(const uint8_t *av_restrict p, const uint8_t *end, uint32_t *av_restrict state)
Definition: utils.c:1968
void ff_reset_entries(AVCodecContext *avctx)
Definition: utils.c:1949
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
int depth
Number of bits in the component.
Definition: pixdesc.h:58
uint8_t ** extended_data
pointers to the data planes/channels.
Definition: frame.h:361
planar GBRA 4:4:4:4 64bpp, little-endian
Definition: pixfmt.h:217
AVBufferRef * hw_device_ctx
A reference to the AVHWDeviceContext describing the device which will be used by a hardware encoder/d...
Definition: avcodec.h:2290
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:154
const char * avcodec_profile_name(enum AVCodecID codec_id, int profile)
Return a name for the specified profile, if available.
Definition: utils.c:1464
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:687
int nb_samples
number of audio samples (per channel) described by this frame
Definition: frame.h:380
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
Definition: pixdesc.h:144
int strict_std_compliance
strictly follow the standard (MPEG-4, ...).
Definition: avcodec.h:1594
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:2088
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:246
int i
Definition: input.c:407
#define FFMAX3(a, b, c)
Definition: common.h:95
int thread_type
Which multithreading methods to use.
Definition: avcodec.h:1800
planar GBR 4:4:4 30bpp, little-endian
Definition: pixfmt.h:173
int avcodec_default_execute(AVCodecContext *c, int(*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
Definition: utils.c:443
int64_t rc_max_rate
maximum bitrate
Definition: avcodec.h:1409
void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.c:190
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
void avpriv_packet_list_free(AVPacketList **pkt_buf, AVPacketList **pkt_buf_end)
Wipe the list and unref all the packets in it.
Definition: avpacket.c:782
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), 12b alpha, big-endian ...
Definition: pixfmt.h:343
uint8_t * subtitle_header
Header containing style information for text subtitles.
Definition: avcodec.h:2026
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
bitstream writer API