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  if (bits_per_sample) {
517  bit_rate = ctx->sample_rate * (int64_t)ctx->channels;
518  if (bit_rate > INT64_MAX / bits_per_sample) {
519  bit_rate = 0;
520  } else
521  bit_rate *= bits_per_sample;
522  } else
523  bit_rate = ctx->bit_rate;
524  break;
525  default:
526  bit_rate = 0;
527  break;
528  }
529  return bit_rate;
530 }
531 
532 
533 static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
534 {
535  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
537 }
538 
539 static void ff_unlock_avcodec(const AVCodec *codec)
540 {
541  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
543 }
544 
545 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
546 {
547  int ret = 0;
548  int codec_init_ok = 0;
549  AVDictionary *tmp = NULL;
550  const AVPixFmtDescriptor *pixdesc;
551  AVCodecInternal *avci;
552 
553  if (avcodec_is_open(avctx))
554  return 0;
555 
556  if (!codec && !avctx->codec) {
557  av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
558  return AVERROR(EINVAL);
559  }
560  if (codec && avctx->codec && codec != avctx->codec) {
561  av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
562  "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
563  return AVERROR(EINVAL);
564  }
565  if (!codec)
566  codec = avctx->codec;
567 
568  if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
569  return AVERROR(EINVAL);
570 
571  if (options)
572  av_dict_copy(&tmp, *options, 0);
573 
574  ff_lock_avcodec(avctx, codec);
575 
576  avci = av_mallocz(sizeof(*avci));
577  if (!avci) {
578  ret = AVERROR(ENOMEM);
579  goto end;
580  }
581  avctx->internal = avci;
582 
583  avci->to_free = av_frame_alloc();
586  avci->buffer_frame = av_frame_alloc();
587  avci->buffer_pkt = av_packet_alloc();
588  avci->es.in_frame = av_frame_alloc();
589  avci->ds.in_pkt = av_packet_alloc();
591  if (!avci->compat_decode_frame || !avci->compat_encode_packet ||
592  !avci->buffer_frame || !avci->buffer_pkt ||
593  !avci->es.in_frame || !avci->ds.in_pkt ||
594  !avci->to_free || !avci->last_pkt_props) {
595  ret = AVERROR(ENOMEM);
596  goto free_and_end;
597  }
598 
599  avci->skip_samples_multiplier = 1;
600 
601  if (codec->priv_data_size > 0) {
602  if (!avctx->priv_data) {
603  avctx->priv_data = av_mallocz(codec->priv_data_size);
604  if (!avctx->priv_data) {
605  ret = AVERROR(ENOMEM);
606  goto free_and_end;
607  }
608  if (codec->priv_class) {
609  *(const AVClass **)avctx->priv_data = codec->priv_class;
611  }
612  }
613  if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
614  goto free_and_end;
615  } else {
616  avctx->priv_data = NULL;
617  }
618  if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
619  goto free_and_end;
620 
621  if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
622  av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
623  ret = AVERROR(EINVAL);
624  goto free_and_end;
625  }
626 
627  // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
628  if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
629  (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
630  if (avctx->coded_width && avctx->coded_height)
631  ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
632  else if (avctx->width && avctx->height)
633  ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
634  if (ret < 0)
635  goto free_and_end;
636  }
637 
638  if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
639  && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
640  || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
641  av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
642  ff_set_dimensions(avctx, 0, 0);
643  }
644 
645  if (avctx->width > 0 && avctx->height > 0) {
646  if (av_image_check_sar(avctx->width, avctx->height,
647  avctx->sample_aspect_ratio) < 0) {
648  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
649  avctx->sample_aspect_ratio.num,
650  avctx->sample_aspect_ratio.den);
651  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
652  }
653  }
654 
655  /* if the decoder init function was already called previously,
656  * free the already allocated subtitle_header before overwriting it */
657  if (av_codec_is_decoder(codec))
658  av_freep(&avctx->subtitle_header);
659 
660  if (avctx->channels > FF_SANE_NB_CHANNELS || avctx->channels < 0) {
661  av_log(avctx, AV_LOG_ERROR, "Too many or invalid channels: %d\n", avctx->channels);
662  ret = AVERROR(EINVAL);
663  goto free_and_end;
664  }
665  if (av_codec_is_decoder(codec) &&
666  codec->type == AVMEDIA_TYPE_AUDIO &&
668  avctx->channels == 0) {
669  av_log(avctx, AV_LOG_ERROR, "Decoder requires channel count but channels not set\n");
670  ret = AVERROR(EINVAL);
671  goto free_and_end;
672  }
673 
674  if (avctx->sample_rate < 0) {
675  av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate);
676  ret = AVERROR(EINVAL);
677  goto free_and_end;
678  }
679  if (avctx->block_align < 0) {
680  av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align);
681  ret = AVERROR(EINVAL);
682  goto free_and_end;
683  }
684 
685 #if FF_API_THREAD_SAFE_CALLBACKS
687  if ((avctx->thread_type & FF_THREAD_FRAME) &&
689  !avctx->thread_safe_callbacks) {
690  av_log(avctx, AV_LOG_WARNING, "Requested frame threading with a "
691  "custom get_buffer2() implementation which is not marked as "
692  "thread safe. This is not supported anymore, make your "
693  "callback thread-safe.\n");
694  }
696 #endif
697 
698  avctx->codec = codec;
699  if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
700  avctx->codec_id == AV_CODEC_ID_NONE) {
701  avctx->codec_type = codec->type;
702  avctx->codec_id = codec->id;
703  }
704  if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
705  && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
706  av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
707  ret = AVERROR(EINVAL);
708  goto free_and_end;
709  }
710  avctx->frame_number = 0;
712 
713  if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
715  const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
716  const AVCodec *codec2;
717  av_log(avctx, AV_LOG_ERROR,
718  "The %s '%s' is experimental but experimental codecs are not enabled, "
719  "add '-strict %d' if you want to use it.\n",
720  codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
721  codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
722  if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
723  av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
724  codec_string, codec2->name);
725  ret = AVERROR_EXPERIMENTAL;
726  goto free_and_end;
727  }
728 
729  if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
730  (!avctx->time_base.num || !avctx->time_base.den)) {
731  avctx->time_base.num = 1;
732  avctx->time_base.den = avctx->sample_rate;
733  }
734 
735  if (!HAVE_THREADS)
736  av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
737 
738  if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
739  ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
740  ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
741  ff_lock_avcodec(avctx, codec);
742  if (ret < 0)
743  goto free_and_end;
744  }
745 
746  if (av_codec_is_decoder(avctx->codec)) {
747  ret = ff_decode_bsfs_init(avctx);
748  if (ret < 0)
749  goto free_and_end;
750  }
751 
752  if (HAVE_THREADS
753  && !(avci->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
754  ret = ff_thread_init(avctx);
755  if (ret < 0) {
756  goto free_and_end;
757  }
758  }
759  if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
760  avctx->thread_count = 1;
761 
762  if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
763  av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
764  avctx->codec->max_lowres);
765  avctx->lowres = avctx->codec->max_lowres;
766  }
767 
768  if (av_codec_is_encoder(avctx->codec)) {
769  int i;
770 #if FF_API_CODED_FRAME
772  avctx->coded_frame = av_frame_alloc();
773  if (!avctx->coded_frame) {
774  ret = AVERROR(ENOMEM);
775  goto free_and_end;
776  }
778 #endif
779 
780  if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
781  av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
782  ret = AVERROR(EINVAL);
783  goto free_and_end;
784  }
785 
786  if (avctx->codec->sample_fmts) {
787  for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
788  if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
789  break;
790  if (avctx->channels == 1 &&
793  avctx->sample_fmt = avctx->codec->sample_fmts[i];
794  break;
795  }
796  }
797  if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
798  char buf[128];
799  snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
800  av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
801  (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
802  ret = AVERROR(EINVAL);
803  goto free_and_end;
804  }
805  }
806  if (avctx->codec->pix_fmts) {
807  for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
808  if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
809  break;
810  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
811  && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
813  char buf[128];
814  snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
815  av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
816  (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
817  ret = AVERROR(EINVAL);
818  goto free_and_end;
819  }
820  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
821  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
822  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
823  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
824  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
825  avctx->color_range = AVCOL_RANGE_JPEG;
826  }
827  if (avctx->codec->supported_samplerates) {
828  for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
829  if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
830  break;
831  if (avctx->codec->supported_samplerates[i] == 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  }
838  if (avctx->sample_rate < 0) {
839  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
840  avctx->sample_rate);
841  ret = AVERROR(EINVAL);
842  goto free_and_end;
843  }
844  if (avctx->codec->channel_layouts) {
845  if (!avctx->channel_layout) {
846  av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
847  } else {
848  for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
849  if (avctx->channel_layout == avctx->codec->channel_layouts[i])
850  break;
851  if (avctx->codec->channel_layouts[i] == 0) {
852  char buf[512];
853  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
854  av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
855  ret = AVERROR(EINVAL);
856  goto free_and_end;
857  }
858  }
859  }
860  if (avctx->channel_layout && avctx->channels) {
862  if (channels != avctx->channels) {
863  char buf[512];
864  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
865  av_log(avctx, AV_LOG_ERROR,
866  "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
867  buf, channels, avctx->channels);
868  ret = AVERROR(EINVAL);
869  goto free_and_end;
870  }
871  } else if (avctx->channel_layout) {
873  }
874  if (avctx->channels < 0) {
875  av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
876  avctx->channels);
877  ret = AVERROR(EINVAL);
878  goto free_and_end;
879  }
880  if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
881  pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
882  if ( avctx->bits_per_raw_sample < 0
883  || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
884  av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
885  avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
886  avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
887  }
888  if (avctx->width <= 0 || avctx->height <= 0) {
889  av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
890  ret = AVERROR(EINVAL);
891  goto free_and_end;
892  }
893  }
894  if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
895  && avctx->bit_rate>0 && avctx->bit_rate<1000) {
896  av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
897  }
898 
899  if (!avctx->rc_initial_buffer_occupancy)
900  avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
901 
902  if (avctx->ticks_per_frame && avctx->time_base.num &&
903  avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
904  av_log(avctx, AV_LOG_ERROR,
905  "ticks_per_frame %d too large for the timebase %d/%d.",
906  avctx->ticks_per_frame,
907  avctx->time_base.num,
908  avctx->time_base.den);
909  goto free_and_end;
910  }
911 
912  if (avctx->hw_frames_ctx) {
913  AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
914  if (frames_ctx->format != avctx->pix_fmt) {
915  av_log(avctx, AV_LOG_ERROR,
916  "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
917  ret = AVERROR(EINVAL);
918  goto free_and_end;
919  }
920  if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
921  avctx->sw_pix_fmt != frames_ctx->sw_format) {
922  av_log(avctx, AV_LOG_ERROR,
923  "Mismatching AVCodecContext.sw_pix_fmt (%s) "
924  "and AVHWFramesContext.sw_format (%s)\n",
926  av_get_pix_fmt_name(frames_ctx->sw_format));
927  ret = AVERROR(EINVAL);
928  goto free_and_end;
929  }
930  avctx->sw_pix_fmt = frames_ctx->sw_format;
931  }
932  }
933 
936  avctx->pts_correction_last_pts =
937  avctx->pts_correction_last_dts = INT64_MIN;
938 
939  if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
941  av_log(avctx, AV_LOG_WARNING,
942  "gray decoding requested but not enabled at configuration time\n");
943  if (avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) {
945  }
946 
947  if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
948  || avci->frame_thread_encoder)) {
949  ret = avctx->codec->init(avctx);
950  if (ret < 0) {
951  codec_init_ok = -1;
952  goto free_and_end;
953  }
954  codec_init_ok = 1;
955  }
956 
957  ret=0;
958 
959  if (av_codec_is_decoder(avctx->codec)) {
960  if (!avctx->bit_rate)
961  avctx->bit_rate = get_bit_rate(avctx);
962  /* validate channel layout from the decoder */
963  if (avctx->channel_layout) {
965  if (!avctx->channels)
966  avctx->channels = channels;
967  else if (channels != avctx->channels) {
968  char buf[512];
969  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
970  av_log(avctx, AV_LOG_WARNING,
971  "Channel layout '%s' with %d channels does not match specified number of channels %d: "
972  "ignoring specified channel layout\n",
973  buf, channels, avctx->channels);
974  avctx->channel_layout = 0;
975  }
976  }
977  if (avctx->channels && avctx->channels < 0 ||
978  avctx->channels > FF_SANE_NB_CHANNELS) {
979  ret = AVERROR(EINVAL);
980  goto free_and_end;
981  }
982  if (avctx->bits_per_coded_sample < 0) {
983  ret = AVERROR(EINVAL);
984  goto free_and_end;
985  }
986  if (avctx->sub_charenc) {
987  if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
988  av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
989  "supported with subtitles codecs\n");
990  ret = AVERROR(EINVAL);
991  goto free_and_end;
992  } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
993  av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
994  "subtitles character encoding will be ignored\n",
995  avctx->codec_descriptor->name);
997  } else {
998  /* input character encoding is set for a text based subtitle
999  * codec at this point */
1002 
1004 #if CONFIG_ICONV
1005  iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1006  if (cd == (iconv_t)-1) {
1007  ret = AVERROR(errno);
1008  av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1009  "with input character encoding \"%s\"\n", avctx->sub_charenc);
1010  goto free_and_end;
1011  }
1012  iconv_close(cd);
1013 #else
1014  av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1015  "conversion needs a libavcodec built with iconv support "
1016  "for this codec\n");
1017  ret = AVERROR(ENOSYS);
1018  goto free_and_end;
1019 #endif
1020  }
1021  }
1022  }
1023 
1024 #if FF_API_AVCTX_TIMEBASE
1025  if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1026  avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1027 #endif
1028  }
1029  if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1030  av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1031  }
1032 
1033 end:
1034  ff_unlock_avcodec(codec);
1035  if (options) {
1036  av_dict_free(options);
1037  *options = tmp;
1038  }
1039 
1040  return ret;
1041 free_and_end:
1042  if (avctx->codec && avctx->codec->close &&
1043  (codec_init_ok > 0 || (codec_init_ok < 0 &&
1045  avctx->codec->close(avctx);
1046 
1047  if (HAVE_THREADS && avci->thread_ctx)
1048  ff_thread_free(avctx);
1049 
1050  if (codec->priv_class && avctx->priv_data)
1051  av_opt_free(avctx->priv_data);
1052  av_opt_free(avctx);
1053 
1054  if (av_codec_is_encoder(avctx->codec)) {
1055 #if FF_API_CODED_FRAME
1057  av_frame_free(&avctx->coded_frame);
1059 #endif
1060  av_freep(&avctx->extradata);
1061  avctx->extradata_size = 0;
1062  }
1063 
1064  av_dict_free(&tmp);
1065  av_freep(&avctx->priv_data);
1066  av_freep(&avctx->subtitle_header);
1067 
1068  av_frame_free(&avci->to_free);
1070  av_frame_free(&avci->buffer_frame);
1072  av_packet_free(&avci->buffer_pkt);
1074 
1075  av_packet_free(&avci->ds.in_pkt);
1076  av_frame_free(&avci->es.in_frame);
1077  av_bsf_free(&avci->bsf);
1078 
1079  av_buffer_unref(&avci->pool);
1080  av_freep(&avci);
1081  avctx->internal = NULL;
1082  avctx->codec = NULL;
1083  goto end;
1084 }
1085 
1087 {
1088  AVCodecInternal *avci = avctx->internal;
1089 
1090  if (av_codec_is_encoder(avctx->codec)) {
1091  int caps = avctx->codec->capabilities;
1092 
1093  if (!(caps & AV_CODEC_CAP_ENCODER_FLUSH)) {
1094  // Only encoders that explicitly declare support for it can be
1095  // flushed. Otherwise, this is a no-op.
1096  av_log(avctx, AV_LOG_WARNING, "Ignoring attempt to flush encoder "
1097  "that doesn't support it\n");
1098  return;
1099  }
1100 
1101  // We haven't implemented flushing for frame-threaded encoders.
1103  }
1104 
1105  avci->draining = 0;
1106  avci->draining_done = 0;
1107  avci->nb_draining_errors = 0;
1111  av_packet_unref(avci->buffer_pkt);
1112 
1115  &avci->pkt_props_tail);
1116 
1117  av_frame_unref(avci->es.in_frame);
1118  av_packet_unref(avci->ds.in_pkt);
1119 
1120  if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
1121  ff_thread_flush(avctx);
1122  else if (avctx->codec->flush)
1123  avctx->codec->flush(avctx);
1124 
1125  avctx->pts_correction_last_pts =
1126  avctx->pts_correction_last_dts = INT64_MIN;
1127 
1128  if (av_codec_is_decoder(avctx->codec))
1129  av_bsf_flush(avci->bsf);
1130 
1131  if (!avctx->refcounted_frames)
1132  av_frame_unref(avci->to_free);
1133 }
1134 
1136 {
1137  int i;
1138 
1139  for (i = 0; i < sub->num_rects; i++) {
1140  av_freep(&sub->rects[i]->data[0]);
1141  av_freep(&sub->rects[i]->data[1]);
1142  av_freep(&sub->rects[i]->data[2]);
1143  av_freep(&sub->rects[i]->data[3]);
1144  av_freep(&sub->rects[i]->text);
1145  av_freep(&sub->rects[i]->ass);
1146  av_freep(&sub->rects[i]);
1147  }
1148 
1149  av_freep(&sub->rects);
1150 
1151  memset(sub, 0, sizeof(*sub));
1152 }
1153 
1155 {
1156  int i;
1157 
1158  if (!avctx)
1159  return 0;
1160 
1161  if (avcodec_is_open(avctx)) {
1162  if (CONFIG_FRAME_THREAD_ENCODER &&
1163  avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1165  }
1166  if (HAVE_THREADS && avctx->internal->thread_ctx)
1167  ff_thread_free(avctx);
1168  if (avctx->codec && avctx->codec->close)
1169  avctx->codec->close(avctx);
1170  avctx->internal->byte_buffer_size = 0;
1171  av_freep(&avctx->internal->byte_buffer);
1172  av_frame_free(&avctx->internal->to_free);
1179  &avctx->internal->pkt_props_tail);
1180 
1181  av_packet_free(&avctx->internal->ds.in_pkt);
1182  av_frame_free(&avctx->internal->es.in_frame);
1183 
1184  av_buffer_unref(&avctx->internal->pool);
1185 
1186  if (avctx->hwaccel && avctx->hwaccel->uninit)
1187  avctx->hwaccel->uninit(avctx);
1189 
1190  av_bsf_free(&avctx->internal->bsf);
1191 
1192  av_freep(&avctx->internal);
1193  }
1194 
1195  for (i = 0; i < avctx->nb_coded_side_data; i++)
1196  av_freep(&avctx->coded_side_data[i].data);
1197  av_freep(&avctx->coded_side_data);
1198  avctx->nb_coded_side_data = 0;
1199 
1200  av_buffer_unref(&avctx->hw_frames_ctx);
1201  av_buffer_unref(&avctx->hw_device_ctx);
1202 
1203  if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1204  av_opt_free(avctx->priv_data);
1205  av_opt_free(avctx);
1206  av_freep(&avctx->priv_data);
1207  if (av_codec_is_encoder(avctx->codec)) {
1208  av_freep(&avctx->extradata);
1209 #if FF_API_CODED_FRAME
1211  av_frame_free(&avctx->coded_frame);
1213 #endif
1214  }
1215  avctx->codec = NULL;
1216  avctx->active_thread_type = 0;
1217 
1218  return 0;
1219 }
1220 
1221 const char *avcodec_get_name(enum AVCodecID id)
1222 {
1223  const AVCodecDescriptor *cd;
1224  const AVCodec *codec;
1225 
1226  if (id == AV_CODEC_ID_NONE)
1227  return "none";
1228  cd = avcodec_descriptor_get(id);
1229  if (cd)
1230  return cd->name;
1231  av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1232  codec = avcodec_find_decoder(id);
1233  if (codec)
1234  return codec->name;
1235  codec = avcodec_find_encoder(id);
1236  if (codec)
1237  return codec->name;
1238  return "unknown_codec";
1239 }
1240 
1241 #if FF_API_TAG_STRING
1242 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1243 {
1244  int i, len, ret = 0;
1245 
1246 #define TAG_PRINT(x) \
1247  (((x) >= '0' && (x) <= '9') || \
1248  ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1249  ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
1250 
1251  for (i = 0; i < 4; i++) {
1252  len = snprintf(buf, buf_size,
1253  TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1254  buf += len;
1255  buf_size = buf_size > len ? buf_size - len : 0;
1256  ret += len;
1257  codec_tag >>= 8;
1258  }
1259  return ret;
1260 }
1261 #endif
1262 
1263 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1264 {
1265  const char *codec_type;
1266  const char *codec_name;
1267  const char *profile = NULL;
1268  int64_t bitrate;
1269  int new_line = 0;
1270  AVRational display_aspect_ratio;
1271  const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1272 
1273  if (!buf || buf_size <= 0)
1274  return;
1275  codec_type = av_get_media_type_string(enc->codec_type);
1276  codec_name = avcodec_get_name(enc->codec_id);
1277  profile = avcodec_profile_name(enc->codec_id, enc->profile);
1278 
1279  snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1280  codec_name);
1281  buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1282 
1283  if (enc->codec && strcmp(enc->codec->name, codec_name))
1284  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1285 
1286  if (profile)
1287  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1288  if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1290  && enc->refs)
1291  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1292  ", %d reference frame%s",
1293  enc->refs, enc->refs > 1 ? "s" : "");
1294 
1295  if (enc->codec_tag)
1296  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1297  av_fourcc2str(enc->codec_tag), enc->codec_tag);
1298 
1299  switch (enc->codec_type) {
1300  case AVMEDIA_TYPE_VIDEO:
1301  {
1302  char detail[256] = "(";
1303 
1304  av_strlcat(buf, separator, buf_size);
1305 
1306  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1307  "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1309  if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1311  av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1313  av_strlcatf(detail, sizeof(detail), "%s, ",
1315 
1316  if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1318  enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1319  if (enc->colorspace != (int)enc->color_primaries ||
1320  enc->colorspace != (int)enc->color_trc) {
1321  new_line = 1;
1322  av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1326  } else
1327  av_strlcatf(detail, sizeof(detail), "%s, ",
1329  }
1330 
1331  if (enc->field_order != AV_FIELD_UNKNOWN) {
1332  const char *field_order = "progressive";
1333  if (enc->field_order == AV_FIELD_TT)
1334  field_order = "top first";
1335  else if (enc->field_order == AV_FIELD_BB)
1336  field_order = "bottom first";
1337  else if (enc->field_order == AV_FIELD_TB)
1338  field_order = "top coded first (swapped)";
1339  else if (enc->field_order == AV_FIELD_BT)
1340  field_order = "bottom coded first (swapped)";
1341 
1342  av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1343  }
1344 
1345  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1347  av_strlcatf(detail, sizeof(detail), "%s, ",
1349 
1350  if (strlen(detail) > 1) {
1351  detail[strlen(detail) - 2] = 0;
1352  av_strlcatf(buf, buf_size, "%s)", detail);
1353  }
1354  }
1355 
1356  if (enc->width) {
1357  av_strlcat(buf, new_line ? separator : ", ", buf_size);
1358 
1359  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1360  "%dx%d",
1361  enc->width, enc->height);
1362 
1363  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1364  (enc->width != enc->coded_width ||
1365  enc->height != enc->coded_height))
1366  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1367  " (%dx%d)", enc->coded_width, enc->coded_height);
1368 
1369  if (enc->sample_aspect_ratio.num) {
1370  av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1371  enc->width * (int64_t)enc->sample_aspect_ratio.num,
1372  enc->height * (int64_t)enc->sample_aspect_ratio.den,
1373  1024 * 1024);
1374  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1375  " [SAR %d:%d DAR %d:%d]",
1377  display_aspect_ratio.num, display_aspect_ratio.den);
1378  }
1379  if (av_log_get_level() >= AV_LOG_DEBUG) {
1380  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1381  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1382  ", %d/%d",
1383  enc->time_base.num / g, enc->time_base.den / g);
1384  }
1385  }
1386  if (encode) {
1387  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1388  ", q=%d-%d", enc->qmin, enc->qmax);
1389  } else {
1391  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1392  ", Closed Captions");
1394  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1395  ", lossless");
1396  }
1397  break;
1398  case AVMEDIA_TYPE_AUDIO:
1399  av_strlcat(buf, separator, buf_size);
1400 
1401  if (enc->sample_rate) {
1402  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1403  "%d Hz, ", enc->sample_rate);
1404  }
1405  av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1406  if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1407  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1408  ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1409  }
1410  if ( enc->bits_per_raw_sample > 0
1412  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1413  " (%d bit)", enc->bits_per_raw_sample);
1414  if (av_log_get_level() >= AV_LOG_VERBOSE) {
1415  if (enc->initial_padding)
1416  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1417  ", delay %d", enc->initial_padding);
1418  if (enc->trailing_padding)
1419  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1420  ", padding %d", enc->trailing_padding);
1421  }
1422  break;
1423  case AVMEDIA_TYPE_DATA:
1424  if (av_log_get_level() >= AV_LOG_DEBUG) {
1425  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1426  if (g)
1427  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1428  ", %d/%d",
1429  enc->time_base.num / g, enc->time_base.den / g);
1430  }
1431  break;
1432  case AVMEDIA_TYPE_SUBTITLE:
1433  if (enc->width)
1434  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1435  ", %dx%d", enc->width, enc->height);
1436  break;
1437  default:
1438  return;
1439  }
1440  if (encode) {
1441  if (enc->flags & AV_CODEC_FLAG_PASS1)
1442  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1443  ", pass 1");
1444  if (enc->flags & AV_CODEC_FLAG_PASS2)
1445  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1446  ", pass 2");
1447  }
1448  bitrate = get_bit_rate(enc);
1449  if (bitrate != 0) {
1450  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1451  ", %"PRId64" kb/s", bitrate / 1000);
1452  } else if (enc->rc_max_rate > 0) {
1453  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1454  ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1455  }
1456 }
1457 
1458 const char *av_get_profile_name(const AVCodec *codec, int profile)
1459 {
1460  const AVProfile *p;
1461  if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1462  return NULL;
1463 
1464  for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1465  if (p->profile == profile)
1466  return p->name;
1467 
1468  return NULL;
1469 }
1470 
1472 {
1473  const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1474  const AVProfile *p;
1475 
1476  if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1477  return NULL;
1478 
1479  for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1480  if (p->profile == profile)
1481  return p->name;
1482 
1483  return NULL;
1484 }
1485 
1486 unsigned avcodec_version(void)
1487 {
1490  av_assert0(AV_CODEC_ID_SRT==94216);
1492 
1493  return LIBAVCODEC_VERSION_INT;
1494 }
1495 
1496 const char *avcodec_configuration(void)
1497 {
1498  return FFMPEG_CONFIGURATION;
1499 }
1500 
1501 const char *avcodec_license(void)
1502 {
1503 #define LICENSE_PREFIX "libavcodec license: "
1504  return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
1505 }
1506 
1508 {
1509  switch (codec_id) {
1510  case AV_CODEC_ID_8SVX_EXP:
1511  case AV_CODEC_ID_8SVX_FIB:
1513  case AV_CODEC_ID_ADPCM_CT:
1525  return 4;
1526  case AV_CODEC_ID_DSD_LSBF:
1527  case AV_CODEC_ID_DSD_MSBF:
1530  case AV_CODEC_ID_PCM_ALAW:
1531  case AV_CODEC_ID_PCM_MULAW:
1532  case AV_CODEC_ID_PCM_VIDC:
1533  case AV_CODEC_ID_PCM_S8:
1535  case AV_CODEC_ID_PCM_U8:
1536  case AV_CODEC_ID_SDX2_DPCM:
1537  case AV_CODEC_ID_DERF_DPCM:
1538  return 8;
1539  case AV_CODEC_ID_PCM_S16BE:
1541  case AV_CODEC_ID_PCM_S16LE:
1543  case AV_CODEC_ID_PCM_U16BE:
1544  case AV_CODEC_ID_PCM_U16LE:
1545  return 16;
1547  case AV_CODEC_ID_PCM_S24BE:
1548  case AV_CODEC_ID_PCM_S24LE:
1550  case AV_CODEC_ID_PCM_U24BE:
1551  case AV_CODEC_ID_PCM_U24LE:
1552  return 24;
1553  case AV_CODEC_ID_PCM_S32BE:
1554  case AV_CODEC_ID_PCM_S32LE:
1556  case AV_CODEC_ID_PCM_U32BE:
1557  case AV_CODEC_ID_PCM_U32LE:
1558  case AV_CODEC_ID_PCM_F32BE:
1559  case AV_CODEC_ID_PCM_F32LE:
1560  case AV_CODEC_ID_PCM_F24LE:
1561  case AV_CODEC_ID_PCM_F16LE:
1562  return 32;
1563  case AV_CODEC_ID_PCM_F64BE:
1564  case AV_CODEC_ID_PCM_F64LE:
1565  case AV_CODEC_ID_PCM_S64BE:
1566  case AV_CODEC_ID_PCM_S64LE:
1567  return 64;
1568  default:
1569  return 0;
1570  }
1571 }
1572 
1574 {
1575  static const enum AVCodecID map[][2] = {
1581  [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1582  [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1583  [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1585  [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1586  [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1587  };
1588  if (fmt < 0 || fmt >= FF_ARRAY_ELEMS(map))
1589  return AV_CODEC_ID_NONE;
1590  if (be < 0 || be > 1)
1591  be = AV_NE(1, 0);
1592  return map[fmt][be];
1593 }
1594 
1596 {
1597  switch (codec_id) {
1599  return 2;
1601  return 3;
1605  case AV_CODEC_ID_ADPCM_SWF:
1606  case AV_CODEC_ID_ADPCM_MS:
1607  return 4;
1608  default:
1609  return av_get_exact_bits_per_sample(codec_id);
1610  }
1611 }
1612 
1613 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1614  uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1615  uint8_t * extradata, int frame_size, int frame_bytes)
1616 {
1618  int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1619 
1620  /* codecs with an exact constant bits per sample */
1621  if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1622  return (frame_bytes * 8LL) / (bps * ch);
1623  bps = bits_per_coded_sample;
1624 
1625  /* codecs with a fixed packet duration */
1626  switch (id) {
1627  case AV_CODEC_ID_ADPCM_ADX: return 32;
1628  case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1629  case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1630  case AV_CODEC_ID_AMR_NB:
1631  case AV_CODEC_ID_EVRC:
1632  case AV_CODEC_ID_GSM:
1633  case AV_CODEC_ID_QCELP:
1634  case AV_CODEC_ID_RA_288: return 160;
1635  case AV_CODEC_ID_AMR_WB:
1636  case AV_CODEC_ID_GSM_MS: return 320;
1637  case AV_CODEC_ID_MP1: return 384;
1638  case AV_CODEC_ID_ATRAC1: return 512;
1639  case AV_CODEC_ID_ATRAC9:
1640  case AV_CODEC_ID_ATRAC3:
1641  if (framecount > INT_MAX/1024)
1642  return 0;
1643  return 1024 * framecount;
1644  case AV_CODEC_ID_ATRAC3P: return 2048;
1645  case AV_CODEC_ID_MP2:
1646  case AV_CODEC_ID_MUSEPACK7: return 1152;
1647  case AV_CODEC_ID_AC3: return 1536;
1648  }
1649 
1650  if (sr > 0) {
1651  /* calc from sample rate */
1652  if (id == AV_CODEC_ID_TTA)
1653  return 256 * sr / 245;
1654  else if (id == AV_CODEC_ID_DST)
1655  return 588 * sr / 44100;
1656 
1657  if (ch > 0) {
1658  /* calc from sample rate and channels */
1659  if (id == AV_CODEC_ID_BINKAUDIO_DCT) {
1660  if (sr / 22050 > 22)
1661  return 0;
1662  return (480 << (sr / 22050)) / ch;
1663  }
1664  }
1665 
1666  if (id == AV_CODEC_ID_MP3)
1667  return sr <= 24000 ? 576 : 1152;
1668  }
1669 
1670  if (ba > 0) {
1671  /* calc from block_align */
1672  if (id == AV_CODEC_ID_SIPR) {
1673  switch (ba) {
1674  case 20: return 160;
1675  case 19: return 144;
1676  case 29: return 288;
1677  case 37: return 480;
1678  }
1679  } else if (id == AV_CODEC_ID_ILBC) {
1680  switch (ba) {
1681  case 38: return 160;
1682  case 50: return 240;
1683  }
1684  }
1685  }
1686 
1687  if (frame_bytes > 0) {
1688  /* calc from frame_bytes only */
1689  if (id == AV_CODEC_ID_TRUESPEECH)
1690  return 240 * (frame_bytes / 32);
1691  if (id == AV_CODEC_ID_NELLYMOSER)
1692  return 256 * (frame_bytes / 64);
1693  if (id == AV_CODEC_ID_RA_144)
1694  return 160 * (frame_bytes / 20);
1695 
1696  if (bps > 0) {
1697  /* calc from frame_bytes and bits_per_coded_sample */
1699  return frame_bytes * 8 / bps;
1700  }
1701 
1702  if (ch > 0 && ch < INT_MAX/16) {
1703  /* calc from frame_bytes and channels */
1704  switch (id) {
1705  case AV_CODEC_ID_FASTAUDIO:
1706  return frame_bytes / (40 * ch) * 256;
1708  return (frame_bytes - 4 * ch) / (128 * ch) * 256;
1709  case AV_CODEC_ID_ADPCM_AFC:
1710  return frame_bytes / (9 * ch) * 16;
1711  case AV_CODEC_ID_ADPCM_PSX:
1712  case AV_CODEC_ID_ADPCM_DTK:
1713  frame_bytes /= 16 * ch;
1714  if (frame_bytes > INT_MAX / 28)
1715  return 0;
1716  return frame_bytes * 28;
1717  case AV_CODEC_ID_ADPCM_4XM:
1720  return (frame_bytes - 4 * ch) * 2 / ch;
1722  return (frame_bytes - 4) * 2 / ch;
1724  return (frame_bytes - 8) * 2;
1725  case AV_CODEC_ID_ADPCM_THP:
1727  if (extradata)
1728  return frame_bytes * 14 / (8 * ch);
1729  break;
1730  case AV_CODEC_ID_ADPCM_XA:
1731  return (frame_bytes / 128) * 224 / ch;
1733  return (frame_bytes - 6 - ch) / ch;
1734  case AV_CODEC_ID_ROQ_DPCM:
1735  return (frame_bytes - 8) / ch;
1736  case AV_CODEC_ID_XAN_DPCM:
1737  return (frame_bytes - 2 * ch) / ch;
1738  case AV_CODEC_ID_MACE3:
1739  return 3 * frame_bytes / ch;
1740  case AV_CODEC_ID_MACE6:
1741  return 6 * frame_bytes / ch;
1742  case AV_CODEC_ID_PCM_LXF:
1743  return 2 * (frame_bytes / (5 * ch));
1744  case AV_CODEC_ID_IAC:
1745  case AV_CODEC_ID_IMC:
1746  return 4 * frame_bytes / ch;
1747  }
1748 
1749  if (tag) {
1750  /* calc from frame_bytes, channels, and codec_tag */
1751  if (id == AV_CODEC_ID_SOL_DPCM) {
1752  if (tag == 3)
1753  return frame_bytes / ch;
1754  else
1755  return frame_bytes * 2 / ch;
1756  }
1757  }
1758 
1759  if (ba > 0) {
1760  /* calc from frame_bytes, channels, and block_align */
1761  int blocks = frame_bytes / ba;
1762  switch (id) {
1764  if (bps < 2 || bps > 5)
1765  return 0;
1766  return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1768  return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1770  return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1772  return blocks * ((ba - 4 * ch) * 2 / ch);
1773  case AV_CODEC_ID_ADPCM_MS:
1774  return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1776  return blocks * (ba - 16) * 2 / ch;
1777  }
1778  }
1779 
1780  if (bps > 0) {
1781  /* calc from frame_bytes, channels, and bits_per_coded_sample */
1782  switch (id) {
1783  case AV_CODEC_ID_PCM_DVD:
1784  if(bps<4 || frame_bytes<3)
1785  return 0;
1786  return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1788  if(bps<4 || frame_bytes<4)
1789  return 0;
1790  return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1791  case AV_CODEC_ID_S302M:
1792  return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1793  }
1794  }
1795  }
1796  }
1797 
1798  /* Fall back on using frame_size */
1799  if (frame_size > 1 && frame_bytes)
1800  return frame_size;
1801 
1802  //For WMA we currently have no other means to calculate duration thus we
1803  //do it here by assuming CBR, which is true for all known cases.
1804  if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1805  if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1806  return (frame_bytes * 8LL * sr) / bitrate;
1807  }
1808 
1809  return 0;
1810 }
1811 
1812 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1813 {
1814  return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1815  avctx->channels, avctx->block_align,
1816  avctx->codec_tag, avctx->bits_per_coded_sample,
1817  avctx->bit_rate, avctx->extradata, avctx->frame_size,
1818  frame_bytes);
1819 }
1820 
1822 {
1823  return get_audio_frame_duration(par->codec_id, par->sample_rate,
1824  par->channels, par->block_align,
1825  par->codec_tag, par->bits_per_coded_sample,
1826  par->bit_rate, par->extradata, par->frame_size,
1827  frame_bytes);
1828 }
1829 
1830 #if !HAVE_THREADS
1832 {
1833  return -1;
1834 }
1835 
1836 #endif
1837 
1838 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1839 {
1840  unsigned int n = 0;
1841 
1842  while (v >= 0xff) {
1843  *s++ = 0xff;
1844  v -= 0xff;
1845  n++;
1846  }
1847  *s = v;
1848  n++;
1849  return n;
1850 }
1851 
1852 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1853 {
1854  int i;
1855  for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1856  return i;
1857 }
1858 
1860 {
1861  int i;
1862  if (!codec->hw_configs || index < 0)
1863  return NULL;
1864  for (i = 0; i <= index; i++)
1865  if (!codec->hw_configs[i])
1866  return NULL;
1867  return &codec->hw_configs[index]->public;
1868 }
1869 
1870 #if FF_API_USER_VISIBLE_AVHWACCEL
1872 {
1873  return NULL;
1874 }
1875 
1877 {
1878 }
1879 #endif
1880 
1881 #if FF_API_LOCKMGR
1882 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1883 {
1884  return 0;
1885 }
1886 #endif
1887 
1888 unsigned int avpriv_toupper4(unsigned int x)
1889 {
1890  return av_toupper(x & 0xFF) +
1891  (av_toupper((x >> 8) & 0xFF) << 8) +
1892  (av_toupper((x >> 16) & 0xFF) << 16) +
1893 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1894 }
1895 
1897 {
1898  int ret;
1899 
1900  dst->owner[0] = src->owner[0];
1901  dst->owner[1] = src->owner[1];
1902 
1903  ret = av_frame_ref(dst->f, src->f);
1904  if (ret < 0)
1905  return ret;
1906 
1907  av_assert0(!dst->progress);
1908 
1909  if (src->progress &&
1910  !(dst->progress = av_buffer_ref(src->progress))) {
1911  ff_thread_release_buffer(dst->owner[0], dst);
1912  return AVERROR(ENOMEM);
1913  }
1914 
1915  return 0;
1916 }
1917 
1918 #if !HAVE_THREADS
1919 
1921 {
1922  return ff_get_format(avctx, fmt);
1923 }
1924 
1926 {
1927  f->owner[0] = f->owner[1] = avctx;
1928  return ff_get_buffer(avctx, f->f, flags);
1929 }
1930 
1932 {
1933  if (f->f)
1934  av_frame_unref(f->f);
1935 }
1936 
1938 {
1939 }
1940 
1942 {
1943 }
1944 
1945 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1946 {
1947 }
1948 
1950 {
1951  return 1;
1952 }
1953 
1955 {
1956  return 0;
1957 }
1958 
1960 {
1961 }
1962 
1963 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1964 {
1965 }
1966 
1967 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
1968 {
1969 }
1970 
1971 #endif
1972 
1974 {
1975  return !!s->internal;
1976 }
1977 
1978 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
1979  const uint8_t *end,
1980  uint32_t *av_restrict state)
1981 {
1982  int i;
1983 
1984  av_assert0(p <= end);
1985  if (p >= end)
1986  return end;
1987 
1988  for (i = 0; i < 3; i++) {
1989  uint32_t tmp = *state << 8;
1990  *state = tmp + *(p++);
1991  if (tmp == 0x100 || p == end)
1992  return p;
1993  }
1994 
1995  while (p < end) {
1996  if (p[-1] > 1 ) p += 3;
1997  else if (p[-2] ) p += 2;
1998  else if (p[-3]|(p[-1]-1)) p++;
1999  else {
2000  p++;
2001  break;
2002  }
2003  }
2004 
2005  p = FFMIN(p, end) - 4;
2006  *state = AV_RB32(p);
2007 
2008  return p + 4;
2009 }
2010 
2012 {
2013  AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
2014  if (!props)
2015  return NULL;
2016 
2017  if (size)
2018  *size = sizeof(*props);
2019 
2020  props->vbv_delay = UINT64_MAX;
2021 
2022  return props;
2023 }
2024 
2026 {
2028  AVCPBProperties *props;
2029  size_t size;
2030  int i;
2031 
2032  for (i = 0; i < avctx->nb_coded_side_data; i++)
2034  return (AVCPBProperties *)avctx->coded_side_data[i].data;
2035 
2036  props = av_cpb_properties_alloc(&size);
2037  if (!props)
2038  return NULL;
2039 
2040  tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
2041  if (!tmp) {
2042  av_freep(&props);
2043  return NULL;
2044  }
2045 
2046  avctx->coded_side_data = tmp;
2047  avctx->nb_coded_side_data++;
2048 
2050  avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
2051  avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
2052 
2053  return props;
2054 }
2055 
2057 {
2058  av_freep(&par->extradata);
2059 
2060  memset(par, 0, sizeof(*par));
2061 
2063  par->codec_id = AV_CODEC_ID_NONE;
2064  par->format = -1;
2071  par->sample_aspect_ratio = (AVRational){ 0, 1 };
2072  par->profile = FF_PROFILE_UNKNOWN;
2073  par->level = FF_LEVEL_UNKNOWN;
2074 }
2075 
2077 {
2078  AVCodecParameters *par = av_mallocz(sizeof(*par));
2079 
2080  if (!par)
2081  return NULL;
2083  return par;
2084 }
2085 
2087 {
2088  AVCodecParameters *par = *ppar;
2089 
2090  if (!par)
2091  return;
2093 
2094  av_freep(ppar);
2095 }
2096 
2098 {
2100  memcpy(dst, src, sizeof(*dst));
2101 
2102  dst->extradata = NULL;
2103  dst->extradata_size = 0;
2104  if (src->extradata) {
2106  if (!dst->extradata)
2107  return AVERROR(ENOMEM);
2108  memcpy(dst->extradata, src->extradata, src->extradata_size);
2109  dst->extradata_size = src->extradata_size;
2110  }
2111 
2112  return 0;
2113 }
2114 
2116  const AVCodecContext *codec)
2117 {
2119 
2120  par->codec_type = codec->codec_type;
2121  par->codec_id = codec->codec_id;
2122  par->codec_tag = codec->codec_tag;
2123 
2124  par->bit_rate = codec->bit_rate;
2127  par->profile = codec->profile;
2128  par->level = codec->level;
2129 
2130  switch (par->codec_type) {
2131  case AVMEDIA_TYPE_VIDEO:
2132  par->format = codec->pix_fmt;
2133  par->width = codec->width;
2134  par->height = codec->height;
2135  par->field_order = codec->field_order;
2136  par->color_range = codec->color_range;
2137  par->color_primaries = codec->color_primaries;
2138  par->color_trc = codec->color_trc;
2139  par->color_space = codec->colorspace;
2142  par->video_delay = codec->has_b_frames;
2143  break;
2144  case AVMEDIA_TYPE_AUDIO:
2145  par->format = codec->sample_fmt;
2146  par->channel_layout = codec->channel_layout;
2147  par->channels = codec->channels;
2148  par->sample_rate = codec->sample_rate;
2149  par->block_align = codec->block_align;
2150  par->frame_size = codec->frame_size;
2151  par->initial_padding = codec->initial_padding;
2152  par->trailing_padding = codec->trailing_padding;
2153  par->seek_preroll = codec->seek_preroll;
2154  break;
2155  case AVMEDIA_TYPE_SUBTITLE:
2156  par->width = codec->width;
2157  par->height = codec->height;
2158  break;
2159  }
2160 
2161  if (codec->extradata) {
2163  if (!par->extradata)
2164  return AVERROR(ENOMEM);
2165  memcpy(par->extradata, codec->extradata, codec->extradata_size);
2166  par->extradata_size = codec->extradata_size;
2167  }
2168 
2169  return 0;
2170 }
2171 
2173  const AVCodecParameters *par)
2174 {
2175  codec->codec_type = par->codec_type;
2176  codec->codec_id = par->codec_id;
2177  codec->codec_tag = par->codec_tag;
2178 
2179  codec->bit_rate = par->bit_rate;
2182  codec->profile = par->profile;
2183  codec->level = par->level;
2184 
2185  switch (par->codec_type) {
2186  case AVMEDIA_TYPE_VIDEO:
2187  codec->pix_fmt = par->format;
2188  codec->width = par->width;
2189  codec->height = par->height;
2190  codec->field_order = par->field_order;
2191  codec->color_range = par->color_range;
2192  codec->color_primaries = par->color_primaries;
2193  codec->color_trc = par->color_trc;
2194  codec->colorspace = par->color_space;
2197  codec->has_b_frames = par->video_delay;
2198  break;
2199  case AVMEDIA_TYPE_AUDIO:
2200  codec->sample_fmt = par->format;
2201  codec->channel_layout = par->channel_layout;
2202  codec->channels = par->channels;
2203  codec->sample_rate = par->sample_rate;
2204  codec->block_align = par->block_align;
2205  codec->frame_size = par->frame_size;
2206  codec->delay =
2207  codec->initial_padding = par->initial_padding;
2208  codec->trailing_padding = par->trailing_padding;
2209  codec->seek_preroll = par->seek_preroll;
2210  break;
2211  case AVMEDIA_TYPE_SUBTITLE:
2212  codec->width = par->width;
2213  codec->height = par->height;
2214  break;
2215  }
2216 
2217  if (par->extradata) {
2218  av_freep(&codec->extradata);
2220  if (!codec->extradata)
2221  return AVERROR(ENOMEM);
2222  memcpy(codec->extradata, par->extradata, par->extradata_size);
2223  codec->extradata_size = par->extradata_size;
2224  }
2225 
2226  return 0;
2227 }
2228 
2229 static unsigned bcd2uint(uint8_t bcd)
2230 {
2231  unsigned low = bcd & 0xf;
2232  unsigned high = bcd >> 4;
2233  if (low > 9 || high > 9)
2234  return 0;
2235  return low + 10*high;
2236 }
2237 
2238 int ff_alloc_timecode_sei(const AVFrame *frame, AVRational rate, size_t prefix_len,
2239  void **data, size_t *sei_size)
2240 {
2241  AVFrameSideData *sd = NULL;
2242  uint8_t *sei_data;
2243  PutBitContext pb;
2244  uint32_t *tc;
2245  int m;
2246 
2247  if (frame)
2249 
2250  if (!sd) {
2251  *data = NULL;
2252  return 0;
2253  }
2254  tc = (uint32_t*)sd->data;
2255  m = tc[0] & 3;
2256 
2257  *sei_size = sizeof(uint32_t) * 4;
2258  *data = av_mallocz(*sei_size + prefix_len);
2259  if (!*data)
2260  return AVERROR(ENOMEM);
2261  sei_data = (uint8_t*)*data + prefix_len;
2262 
2263  init_put_bits(&pb, sei_data, *sei_size);
2264  put_bits(&pb, 2, m); // num_clock_ts
2265 
2266  for (int j = 1; j <= m; j++) {
2267  uint32_t tcsmpte = tc[j];
2268  unsigned hh = bcd2uint(tcsmpte & 0x3f); // 6-bit hours
2269  unsigned mm = bcd2uint(tcsmpte>>8 & 0x7f); // 7-bit minutes
2270  unsigned ss = bcd2uint(tcsmpte>>16 & 0x7f); // 7-bit seconds
2271  unsigned ff = bcd2uint(tcsmpte>>24 & 0x3f); // 6-bit frames
2272  unsigned drop = tcsmpte & 1<<30 && !0; // 1-bit drop if not arbitrary bit
2273 
2274  /* Calculate frame number of HEVC by SMPTE ST 12-1:2014 Sec 12.2 if rate > 30FPS */
2275  if (av_cmp_q(rate, (AVRational) {30, 1}) == 1) {
2276  unsigned pc;
2277  ff *= 2;
2278  if (av_cmp_q(rate, (AVRational) {50, 1}) == 0)
2279  pc = !!(tcsmpte & 1 << 7);
2280  else
2281  pc = !!(tcsmpte & 1 << 23);
2282  ff = (ff + pc) & 0x7f;
2283  }
2284 
2285  put_bits(&pb, 1, 1); // clock_timestamp_flag
2286  put_bits(&pb, 1, 1); // units_field_based_flag
2287  put_bits(&pb, 5, 0); // counting_type
2288  put_bits(&pb, 1, 1); // full_timestamp_flag
2289  put_bits(&pb, 1, 0); // discontinuity_flag
2290  put_bits(&pb, 1, drop);
2291  put_bits(&pb, 9, ff);
2292  put_bits(&pb, 6, ss);
2293  put_bits(&pb, 6, mm);
2294  put_bits(&pb, 5, hh);
2295  put_bits(&pb, 5, 0);
2296  }
2297  flush_put_bits(&pb);
2298 
2299  return 0;
2300 }
2301 
2303 {
2304  AVRational framerate = avctx->framerate;
2305  int bits_per_coded_sample = avctx->bits_per_coded_sample;
2306  int64_t bitrate;
2307 
2308  if (!(framerate.num && framerate.den))
2309  framerate = av_inv_q(avctx->time_base);
2310  if (!(framerate.num && framerate.den))
2311  return 0;
2312 
2313  if (!bits_per_coded_sample) {
2315  bits_per_coded_sample = av_get_bits_per_pixel(desc);
2316  }
2317  bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2318  framerate.num / framerate.den;
2319 
2320  return bitrate;
2321 }
2322 
2323 int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
2324  const int * array_valid_values, int default_value)
2325 {
2326  int i = 0, ref_val;
2327 
2328  while (1) {
2329  ref_val = array_valid_values[i];
2330  if (ref_val == INT_MAX)
2331  break;
2332  if (val == ref_val)
2333  return val;
2334  i++;
2335  }
2336  /* val is not a valid value */
2337  av_log(ctx, AV_LOG_DEBUG,
2338  "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
2339  return default_value;
2340 }
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:2302
#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:2142
#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:1296
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:2084
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:2105
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:2141
static AVMutex mutex
Definition: log.c:44
int64_t pts_correction_num_faulty_dts
Number of incorrect PTS values so far.
Definition: avcodec.h:2122
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:2097
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:1358
const char * avcodec_configuration(void)
Return the libavcodec build-time configuration.
Definition: utils.c:1496
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:2140
static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
Definition: utils.c:533
int av_codec_is_decoder(const AVCodec *codec)
Definition: utils.c:101
const char * avcodec_license(void)
Return the libavcodec license.
Definition: utils.c:1501
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:2713
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:1920
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:1882
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:4101
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:2697
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:2714
int(* uninit)(AVCodecContext *avctx)
Uninitialize the hwaccel private data.
Definition: avcodec.h:2563
void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
Definition: utils.c:1963
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:1998
#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:2369
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:2263
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:2076
#define FF_CODEC_PROPERTY_LOSSLESS
Definition: avcodec.h:2207
#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:2172
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:2025
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:1613
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:2229
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:1852
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:2011
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:2056
#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:2086
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:1876
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:255
av_cold int avcodec_close(AVCodecContext *avctx)
Close a given AVCodecContext and free all the data associated with it (but not the AVCodecContext its...
Definition: utils.c:1154
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:1595
#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:2323
#define MAKE_ACCESSORS(str, name, type, field)
Definition: internal.h:90
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:136
unsigned int avpriv_toupper4(unsigned int x)
Definition: utils.c:1888
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:2123
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:1973
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:2075
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:1831
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:422
#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:935
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:2271
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:2238
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:1821
#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:2216
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:1507
AVFrame * compat_decode_frame
Definition: internal.h:189
void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
Definition: utils.c:1967
int width
picture width / height.
Definition: avcodec.h:704
static void ff_unlock_avcodec(const AVCodec *codec)
Definition: utils.c:539
AVBufferRef * hw_frames_ctx
A reference to the AVHWFramesContext describing the input (for encoding) or output (decoding) frames...
Definition: avcodec.h:2241
#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:1997
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:1937
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:2131
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:2692
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:2139
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:1086
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:1458
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:2165
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:1871
int avcodec_default_get_buffer2(AVCodecContext *s, AVFrame *frame, int flags)
The default callback for AVCodecContext.get_buffer2().
Definition: decode.c:1665
Libavcodec external API header.
enum AVMediaType codec_type
Definition: avcodec.h:539
static struct @320 state
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:1573
enum AVCodecID codec_id
Definition: avcodec.h:541
int seek_preroll
Number of samples to skip after a discontinuity.
Definition: avcodec.h:2164
int av_opt_set_dict(void *obj, AVDictionary **options)
Set all the options from a given dictionary on an object.
Definition: opt.c:1656
int sample_rate
samples per second
Definition: avcodec.h:1191
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:345
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:177
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
const AVCodecHWConfig * avcodec_get_hw_config(const AVCodec *codec, int index)
Retrieve supported hardware configurations for a codec.
Definition: utils.c:1859
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:1135
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:1876
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:1838
int nb_coded_side_data
Definition: avcodec.h:2217
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:2208
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:1931
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:2115
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:2199
planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), big-endian
Definition: pixfmt.h:178
const VDPAUPixFmtMap * map
#define STRIDE_ALIGN
Definition: internal.h:108
const char * name
Name of the codec described by this descriptor.
Definition: codec_desc.h:46
int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Initialize the AVCodecContext to use the given AVCodec.
Definition: utils.c:545
#define snprintf
Definition: snprintf.h:34
int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
Return audio frame duration.
Definition: utils.c:1812
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:940
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:561
int bits_per_raw_sample
This is the number of valid bits in each output sample.
Definition: codec_par.h:115
const AVClass * priv_class
AVClass for the private context.
Definition: codec.h:216
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:328
planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:163
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:135
int av_get_bytes_per_sample(enum AVSampleFormat sample_fmt)
Return number of bytes per sample.
Definition: samplefmt.c:106
void ff_color_frame(AVFrame *frame, const int c[4])
Definition: utils.c:414
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
Definition: rational.h:159
int sample_rate
Audio only.
Definition: codec_par.h:170
enum AVMediaType type
Definition: codec_desc.h:40
uint8_t max_lowres
maximum value for lowres supported by the decoder
Definition: codec.h:215
AVPacket * buffer_pkt
buffers for using new encode/decode API through legacy API
Definition: internal.h: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:1611
const OptionDef options[]
Definition: ffmpeg_opt.c:3407
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:83
common internal api header.
enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
Converts swscale x/y chroma position to AVChromaLocation.
Definition: utils.c:367
static void flush_put_bits(PutBitContext *s)
Pad the end of the output stream with zeros.
Definition: put_bits.h:117
#define FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM
The decoder extracts and fills its parameters even if the frame is skipped due to the skip_frame sett...
Definition: internal.h:60
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:215
signed 16 bits
Definition: samplefmt.h:61
planar GBR 4:4:4 27bpp, little-endian
Definition: pixfmt.h:171
int profile
Codec-specific bitstream restrictions that the stream conforms to.
Definition: codec_par.h:120
const char * av_color_transfer_name(enum AVColorTransferCharacteristic transfer)
Definition: pixdesc.c:2942
int(* encode_sub)(struct AVCodecContext *, uint8_t *buf, int buf_size, const struct AVSubtitle *sub)
Definition: codec.h:270
void * hwaccel_priv_data
hwaccel-specific private data
Definition: internal.h: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:1949
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:1941
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:1221
unsigned properties
Properties of the stream that gets decoded.
Definition: avcodec.h:2206
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:1263
#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:1242
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:2191
int ff_thread_ref_frame(ThreadFrame *dst, const ThreadFrame *src)
Definition: utils.c:1896
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:84
#define TAG_PRINT(x)
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:253
as in Berlin toast format
Definition: codec_id.h:439
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:1486
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:2704
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:3480
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:1945
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:2124
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:2121
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:1925
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:1954
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:1978
void ff_reset_entries(AVCodecContext *avctx)
Definition: utils.c:1959
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:2293
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:1471
static int ff_fast_malloc(void *ptr, unsigned int *size, size_t min_size, int zero_realloc)
Definition: mem_internal.h:139
int delay
Codec delay.
Definition: avcodec.h:687
int nb_samples
number of audio samples (per channel) described by this frame
Definition: frame.h:380
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
Definition: pixdesc.h:144
int strict_std_compliance
strictly follow the standard (MPEG-4, ...).
Definition: avcodec.h: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:2091
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:2029
static uint8_t tmp[11]
Definition: aes_ctr.c:27
planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:160
bitstream writer API