FFmpeg  4.2.2
utils.c
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1 /*
2  * utils for libavcodec
3  * Copyright (c) 2001 Fabrice Bellard
4  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 /**
24  * @file
25  * utils.
26  */
27 
28 #include "config.h"
29 #include "libavutil/attributes.h"
30 #include "libavutil/avassert.h"
31 #include "libavutil/avstring.h"
32 #include "libavutil/bprint.h"
34 #include "libavutil/crc.h"
35 #include "libavutil/frame.h"
36 #include "libavutil/hwcontext.h"
37 #include "libavutil/internal.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/mem_internal.h"
40 #include "libavutil/pixdesc.h"
41 #include "libavutil/imgutils.h"
42 #include "libavutil/samplefmt.h"
43 #include "libavutil/dict.h"
44 #include "libavutil/thread.h"
45 #include "avcodec.h"
46 #include "decode.h"
47 #include "hwaccel.h"
48 #include "libavutil/opt.h"
49 #include "mpegvideo.h"
50 #include "thread.h"
51 #include "frame_thread_encoder.h"
52 #include "internal.h"
53 #include "raw.h"
54 #include "bytestream.h"
55 #include "version.h"
56 #include <stdlib.h>
57 #include <stdarg.h>
58 #include <stdatomic.h>
59 #include <limits.h>
60 #include <float.h>
61 #if CONFIG_ICONV
62 # include <iconv.h>
63 #endif
64 
65 #include "libavutil/ffversion.h"
66 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
67 
69 
70 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
71 {
72  uint8_t **p = ptr;
73  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
74  av_freep(p);
75  *size = 0;
76  return;
77  }
78  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
79  memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
80 }
81 
82 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
83 {
84  uint8_t **p = ptr;
85  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
86  av_freep(p);
87  *size = 0;
88  return;
89  }
90  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
91  memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
92 }
93 
94 int av_codec_is_encoder(const AVCodec *codec)
95 {
96  return codec && (codec->encode_sub || codec->encode2 ||codec->send_frame);
97 }
98 
99 int av_codec_is_decoder(const AVCodec *codec)
100 {
101  return codec && (codec->decode || codec->receive_frame);
102 }
103 
105 {
106  int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
107 
108  if (ret < 0)
109  width = height = 0;
110 
111  s->coded_width = width;
112  s->coded_height = height;
113  s->width = AV_CEIL_RSHIFT(width, s->lowres);
114  s->height = AV_CEIL_RSHIFT(height, s->lowres);
115 
116  return ret;
117 }
118 
120 {
121  int ret = av_image_check_sar(avctx->width, avctx->height, sar);
122 
123  if (ret < 0) {
124  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
125  sar.num, sar.den);
126  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
127  return ret;
128  } else {
129  avctx->sample_aspect_ratio = sar;
130  }
131  return 0;
132 }
133 
135  enum AVMatrixEncoding matrix_encoding)
136 {
137  AVFrameSideData *side_data;
138  enum AVMatrixEncoding *data;
139 
141  if (!side_data)
143  sizeof(enum AVMatrixEncoding));
144 
145  if (!side_data)
146  return AVERROR(ENOMEM);
147 
148  data = (enum AVMatrixEncoding*)side_data->data;
149  *data = matrix_encoding;
150 
151  return 0;
152 }
153 
155  int linesize_align[AV_NUM_DATA_POINTERS])
156 {
157  int i;
158  int w_align = 1;
159  int h_align = 1;
161 
162  if (desc) {
163  w_align = 1 << desc->log2_chroma_w;
164  h_align = 1 << desc->log2_chroma_h;
165  }
166 
167  switch (s->pix_fmt) {
168  case AV_PIX_FMT_YUV420P:
169  case AV_PIX_FMT_YUYV422:
170  case AV_PIX_FMT_YVYU422:
171  case AV_PIX_FMT_UYVY422:
172  case AV_PIX_FMT_YUV422P:
173  case AV_PIX_FMT_YUV440P:
174  case AV_PIX_FMT_YUV444P:
175  case AV_PIX_FMT_GBRP:
176  case AV_PIX_FMT_GBRAP:
177  case AV_PIX_FMT_GRAY8:
178  case AV_PIX_FMT_GRAY16BE:
179  case AV_PIX_FMT_GRAY16LE:
180  case AV_PIX_FMT_YUVJ420P:
181  case AV_PIX_FMT_YUVJ422P:
182  case AV_PIX_FMT_YUVJ440P:
183  case AV_PIX_FMT_YUVJ444P:
184  case AV_PIX_FMT_YUVA420P:
185  case AV_PIX_FMT_YUVA422P:
186  case AV_PIX_FMT_YUVA444P:
243  case AV_PIX_FMT_GBRP9LE:
244  case AV_PIX_FMT_GBRP9BE:
245  case AV_PIX_FMT_GBRP10LE:
246  case AV_PIX_FMT_GBRP10BE:
247  case AV_PIX_FMT_GBRP12LE:
248  case AV_PIX_FMT_GBRP12BE:
249  case AV_PIX_FMT_GBRP14LE:
250  case AV_PIX_FMT_GBRP14BE:
251  case AV_PIX_FMT_GBRP16LE:
252  case AV_PIX_FMT_GBRP16BE:
257  w_align = 16; //FIXME assume 16 pixel per macroblock
258  h_align = 16 * 2; // interlaced needs 2 macroblocks height
259  break;
260  case AV_PIX_FMT_YUV411P:
261  case AV_PIX_FMT_YUVJ411P:
263  w_align = 32;
264  h_align = 16 * 2;
265  break;
266  case AV_PIX_FMT_YUV410P:
267  if (s->codec_id == AV_CODEC_ID_SVQ1) {
268  w_align = 64;
269  h_align = 64;
270  }
271  break;
272  case AV_PIX_FMT_RGB555:
273  if (s->codec_id == AV_CODEC_ID_RPZA) {
274  w_align = 4;
275  h_align = 4;
276  }
278  w_align = 8;
279  h_align = 8;
280  }
281  break;
282  case AV_PIX_FMT_PAL8:
283  case AV_PIX_FMT_BGR8:
284  case AV_PIX_FMT_RGB8:
285  if (s->codec_id == AV_CODEC_ID_SMC ||
287  w_align = 4;
288  h_align = 4;
289  }
290  if (s->codec_id == AV_CODEC_ID_JV ||
292  w_align = 8;
293  h_align = 8;
294  }
295  break;
296  case AV_PIX_FMT_BGR24:
297  if ((s->codec_id == AV_CODEC_ID_MSZH) ||
298  (s->codec_id == AV_CODEC_ID_ZLIB)) {
299  w_align = 4;
300  h_align = 4;
301  }
302  break;
303  case AV_PIX_FMT_RGB24:
304  if (s->codec_id == AV_CODEC_ID_CINEPAK) {
305  w_align = 4;
306  h_align = 4;
307  }
308  break;
309  default:
310  break;
311  }
312 
313  if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
314  w_align = FFMAX(w_align, 8);
315  }
316 
317  *width = FFALIGN(*width, w_align);
318  *height = FFALIGN(*height, h_align);
319  if (s->codec_id == AV_CODEC_ID_H264 || s->lowres ||
322  ) {
323  // some of the optimized chroma MC reads one line too much
324  // which is also done in mpeg decoders with lowres > 0
325  *height += 2;
326 
327  // H.264 uses edge emulation for out of frame motion vectors, for this
328  // it requires a temporary area large enough to hold a 21x21 block,
329  // increasing witdth ensure that the temporary area is large enough,
330  // the next rounded up width is 32
331  *width = FFMAX(*width, 32);
332  }
333 
334  for (i = 0; i < 4; i++)
335  linesize_align[i] = STRIDE_ALIGN;
336 }
337 
339 {
341  int chroma_shift = desc->log2_chroma_w;
342  int linesize_align[AV_NUM_DATA_POINTERS];
343  int align;
344 
345  avcodec_align_dimensions2(s, width, height, linesize_align);
346  align = FFMAX(linesize_align[0], linesize_align[3]);
347  linesize_align[1] <<= chroma_shift;
348  linesize_align[2] <<= chroma_shift;
349  align = FFMAX3(align, linesize_align[1], linesize_align[2]);
350  *width = FFALIGN(*width, align);
351 }
352 
353 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
354 {
355  if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
356  return AVERROR(EINVAL);
357  pos--;
358 
359  *xpos = (pos&1) * 128;
360  *ypos = ((pos>>1)^(pos<4)) * 128;
361 
362  return 0;
363 }
364 
366 {
367  int pos, xout, yout;
368 
369  for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
370  if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
371  return pos;
372  }
374 }
375 
377  enum AVSampleFormat sample_fmt, const uint8_t *buf,
378  int buf_size, int align)
379 {
380  int ch, planar, needed_size, ret = 0;
381 
382  needed_size = av_samples_get_buffer_size(NULL, nb_channels,
383  frame->nb_samples, sample_fmt,
384  align);
385  if (buf_size < needed_size)
386  return AVERROR(EINVAL);
387 
388  planar = av_sample_fmt_is_planar(sample_fmt);
389  if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
390  if (!(frame->extended_data = av_mallocz_array(nb_channels,
391  sizeof(*frame->extended_data))))
392  return AVERROR(ENOMEM);
393  } else {
394  frame->extended_data = frame->data;
395  }
396 
397  if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
398  (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
399  sample_fmt, align)) < 0) {
400  if (frame->extended_data != frame->data)
401  av_freep(&frame->extended_data);
402  return ret;
403  }
404  if (frame->extended_data != frame->data) {
405  for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
406  frame->data[ch] = frame->extended_data[ch];
407  }
408 
409  return ret;
410 }
411 
412 void ff_color_frame(AVFrame *frame, const int c[4])
413 {
415  int p, y;
416 
418 
419  for (p = 0; p<desc->nb_components; p++) {
420  uint8_t *dst = frame->data[p];
421  int is_chroma = p == 1 || p == 2;
422  int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
423  int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
424  if (desc->comp[0].depth >= 9) {
425  ((uint16_t*)dst)[0] = c[p];
426  av_memcpy_backptr(dst + 2, 2, bytes - 2);
427  dst += frame->linesize[p];
428  for (y = 1; y < height; y++) {
429  memcpy(dst, frame->data[p], 2*bytes);
430  dst += frame->linesize[p];
431  }
432  } else {
433  for (y = 0; y < height; y++) {
434  memset(dst, c[p], bytes);
435  dst += frame->linesize[p];
436  }
437  }
438  }
439 }
440 
441 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
442 {
443  int i;
444 
445  for (i = 0; i < count; i++) {
446  int r = func(c, (char *)arg + i * size);
447  if (ret)
448  ret[i] = r;
449  }
450  emms_c();
451  return 0;
452 }
453 
454 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
455 {
456  int i;
457 
458  for (i = 0; i < count; i++) {
459  int r = func(c, arg, i, 0);
460  if (ret)
461  ret[i] = r;
462  }
463  emms_c();
464  return 0;
465 }
466 
468  unsigned int fourcc)
469 {
470  while (tags->pix_fmt >= 0) {
471  if (tags->fourcc == fourcc)
472  return tags->pix_fmt;
473  tags++;
474  }
475  return AV_PIX_FMT_NONE;
476 }
477 
478 #if FF_API_CODEC_GET_SET
479 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
480 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
482 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
483 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
484 
486 {
487  return codec->properties;
488 }
489 
491 {
492  return codec->max_lowres;
493 }
494 #endif
495 
498 }
499 
501 {
502  int64_t bit_rate;
503  int bits_per_sample;
504 
505  switch (ctx->codec_type) {
506  case AVMEDIA_TYPE_VIDEO:
507  case AVMEDIA_TYPE_DATA:
510  bit_rate = ctx->bit_rate;
511  break;
512  case AVMEDIA_TYPE_AUDIO:
513  bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
514  bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
515  break;
516  default:
517  bit_rate = 0;
518  break;
519  }
520  return bit_rate;
521 }
522 
523 
524 static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
525 {
526  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
528 }
529 
530 static void ff_unlock_avcodec(const AVCodec *codec)
531 {
532  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
534 }
535 
537 {
538  int ret = 0;
539 
540  ff_unlock_avcodec(codec);
541 
542  ret = avcodec_open2(avctx, codec, options);
543 
544  ff_lock_avcodec(avctx, codec);
545  return ret;
546 }
547 
549 {
550  int ret = 0;
551  int codec_init_ok = 0;
552  AVDictionary *tmp = NULL;
553  const AVPixFmtDescriptor *pixdesc;
554 
555  if (avcodec_is_open(avctx))
556  return 0;
557 
558  if ((!codec && !avctx->codec)) {
559  av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
560  return AVERROR(EINVAL);
561  }
562  if ((codec && avctx->codec && codec != avctx->codec)) {
563  av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
564  "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
565  return AVERROR(EINVAL);
566  }
567  if (!codec)
568  codec = avctx->codec;
569 
570  if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
571  return AVERROR(EINVAL);
572 
573  if (options)
574  av_dict_copy(&tmp, *options, 0);
575 
576  ff_lock_avcodec(avctx, codec);
577 
578  avctx->internal = av_mallocz(sizeof(*avctx->internal));
579  if (!avctx->internal) {
580  ret = AVERROR(ENOMEM);
581  goto end;
582  }
583 
584  avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
585  if (!avctx->internal->pool) {
586  ret = AVERROR(ENOMEM);
587  goto free_and_end;
588  }
589 
590  avctx->internal->to_free = av_frame_alloc();
591  if (!avctx->internal->to_free) {
592  ret = AVERROR(ENOMEM);
593  goto free_and_end;
594  }
595 
597  if (!avctx->internal->compat_decode_frame) {
598  ret = AVERROR(ENOMEM);
599  goto free_and_end;
600  }
601 
603  if (!avctx->internal->buffer_frame) {
604  ret = AVERROR(ENOMEM);
605  goto free_and_end;
606  }
607 
608  avctx->internal->buffer_pkt = av_packet_alloc();
609  if (!avctx->internal->buffer_pkt) {
610  ret = AVERROR(ENOMEM);
611  goto free_and_end;
612  }
613 
614  avctx->internal->ds.in_pkt = av_packet_alloc();
615  if (!avctx->internal->ds.in_pkt) {
616  ret = AVERROR(ENOMEM);
617  goto free_and_end;
618  }
619 
621  if (!avctx->internal->last_pkt_props) {
622  ret = AVERROR(ENOMEM);
623  goto free_and_end;
624  }
625 
626  avctx->internal->skip_samples_multiplier = 1;
627 
628  if (codec->priv_data_size > 0) {
629  if (!avctx->priv_data) {
630  avctx->priv_data = av_mallocz(codec->priv_data_size);
631  if (!avctx->priv_data) {
632  ret = AVERROR(ENOMEM);
633  goto end;
634  }
635  if (codec->priv_class) {
636  *(const AVClass **)avctx->priv_data = codec->priv_class;
638  }
639  }
640  if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
641  goto free_and_end;
642  } else {
643  avctx->priv_data = NULL;
644  }
645  if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
646  goto free_and_end;
647 
648  if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
649  av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
650  ret = AVERROR(EINVAL);
651  goto free_and_end;
652  }
653 
654  // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
655  if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
656  (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
657  if (avctx->coded_width && avctx->coded_height)
658  ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
659  else if (avctx->width && avctx->height)
660  ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
661  if (ret < 0)
662  goto free_and_end;
663  }
664 
665  if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
666  && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
667  || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
668  av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
669  ff_set_dimensions(avctx, 0, 0);
670  }
671 
672  if (avctx->width > 0 && avctx->height > 0) {
673  if (av_image_check_sar(avctx->width, avctx->height,
674  avctx->sample_aspect_ratio) < 0) {
675  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
676  avctx->sample_aspect_ratio.num,
677  avctx->sample_aspect_ratio.den);
678  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
679  }
680  }
681 
682  /* if the decoder init function was already called previously,
683  * free the already allocated subtitle_header before overwriting it */
684  if (av_codec_is_decoder(codec))
685  av_freep(&avctx->subtitle_header);
686 
687  if (avctx->channels > FF_SANE_NB_CHANNELS || avctx->channels < 0) {
688  av_log(avctx, AV_LOG_ERROR, "Too many or invalid channels: %d\n", avctx->channels);
689  ret = AVERROR(EINVAL);
690  goto free_and_end;
691  }
692  if (avctx->sample_rate < 0) {
693  av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate);
694  ret = AVERROR(EINVAL);
695  goto free_and_end;
696  }
697  if (avctx->block_align < 0) {
698  av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align);
699  ret = AVERROR(EINVAL);
700  goto free_and_end;
701  }
702 
703  avctx->codec = codec;
704  if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
705  avctx->codec_id == AV_CODEC_ID_NONE) {
706  avctx->codec_type = codec->type;
707  avctx->codec_id = codec->id;
708  }
709  if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
710  && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
711  av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
712  ret = AVERROR(EINVAL);
713  goto free_and_end;
714  }
715  avctx->frame_number = 0;
717 
718  if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
720  const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
721  AVCodec *codec2;
722  av_log(avctx, AV_LOG_ERROR,
723  "The %s '%s' is experimental but experimental codecs are not enabled, "
724  "add '-strict %d' if you want to use it.\n",
725  codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
726  codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
727  if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
728  av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
729  codec_string, codec2->name);
730  ret = AVERROR_EXPERIMENTAL;
731  goto free_and_end;
732  }
733 
734  if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
735  (!avctx->time_base.num || !avctx->time_base.den)) {
736  avctx->time_base.num = 1;
737  avctx->time_base.den = avctx->sample_rate;
738  }
739 
740  if (!HAVE_THREADS)
741  av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
742 
744  ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
745  ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
746  ff_lock_avcodec(avctx, codec);
747  if (ret < 0)
748  goto free_and_end;
749  }
750 
751  if (av_codec_is_decoder(avctx->codec)) {
752  ret = ff_decode_bsfs_init(avctx);
753  if (ret < 0)
754  goto free_and_end;
755  }
756 
757  if (HAVE_THREADS
759  ret = ff_thread_init(avctx);
760  if (ret < 0) {
761  goto free_and_end;
762  }
763  }
765  avctx->thread_count = 1;
766 
767  if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
768  av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
769  avctx->codec->max_lowres);
770  avctx->lowres = avctx->codec->max_lowres;
771  }
772 
773  if (av_codec_is_encoder(avctx->codec)) {
774  int i;
775 #if FF_API_CODED_FRAME
777  avctx->coded_frame = av_frame_alloc();
778  if (!avctx->coded_frame) {
779  ret = AVERROR(ENOMEM);
780  goto free_and_end;
781  }
783 #endif
784 
785  if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
786  av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
787  ret = AVERROR(EINVAL);
788  goto free_and_end;
789  }
790 
791  if (avctx->codec->sample_fmts) {
792  for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
793  if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
794  break;
795  if (avctx->channels == 1 &&
798  avctx->sample_fmt = avctx->codec->sample_fmts[i];
799  break;
800  }
801  }
802  if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
803  char buf[128];
804  snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
805  av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
806  (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
807  ret = AVERROR(EINVAL);
808  goto free_and_end;
809  }
810  }
811  if (avctx->codec->pix_fmts) {
812  for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
813  if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
814  break;
815  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
816  && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
818  char buf[128];
819  snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
820  av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
821  (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
822  ret = AVERROR(EINVAL);
823  goto free_and_end;
824  }
825  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
826  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
827  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
828  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
829  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
830  avctx->color_range = AVCOL_RANGE_JPEG;
831  }
832  if (avctx->codec->supported_samplerates) {
833  for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
834  if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
835  break;
836  if (avctx->codec->supported_samplerates[i] == 0) {
837  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
838  avctx->sample_rate);
839  ret = AVERROR(EINVAL);
840  goto free_and_end;
841  }
842  }
843  if (avctx->sample_rate < 0) {
844  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
845  avctx->sample_rate);
846  ret = AVERROR(EINVAL);
847  goto free_and_end;
848  }
849  if (avctx->codec->channel_layouts) {
850  if (!avctx->channel_layout) {
851  av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
852  } else {
853  for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
854  if (avctx->channel_layout == avctx->codec->channel_layouts[i])
855  break;
856  if (avctx->codec->channel_layouts[i] == 0) {
857  char buf[512];
858  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
859  av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
860  ret = AVERROR(EINVAL);
861  goto free_and_end;
862  }
863  }
864  }
865  if (avctx->channel_layout && avctx->channels) {
867  if (channels != avctx->channels) {
868  char buf[512];
869  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
870  av_log(avctx, AV_LOG_ERROR,
871  "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
872  buf, channels, avctx->channels);
873  ret = AVERROR(EINVAL);
874  goto free_and_end;
875  }
876  } else if (avctx->channel_layout) {
878  }
879  if (avctx->channels < 0) {
880  av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
881  avctx->channels);
882  ret = AVERROR(EINVAL);
883  goto free_and_end;
884  }
885  if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
886  pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
887  if ( avctx->bits_per_raw_sample < 0
888  || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
889  av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
890  avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
891  avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
892  }
893  if (avctx->width <= 0 || avctx->height <= 0) {
894  av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
895  ret = AVERROR(EINVAL);
896  goto free_and_end;
897  }
898  }
899  if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
900  && avctx->bit_rate>0 && avctx->bit_rate<1000) {
901  av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
902  }
903 
904  if (!avctx->rc_initial_buffer_occupancy)
905  avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
906 
907  if (avctx->ticks_per_frame && avctx->time_base.num &&
908  avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
909  av_log(avctx, AV_LOG_ERROR,
910  "ticks_per_frame %d too large for the timebase %d/%d.",
911  avctx->ticks_per_frame,
912  avctx->time_base.num,
913  avctx->time_base.den);
914  goto free_and_end;
915  }
916 
917  if (avctx->hw_frames_ctx) {
918  AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
919  if (frames_ctx->format != avctx->pix_fmt) {
920  av_log(avctx, AV_LOG_ERROR,
921  "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
922  ret = AVERROR(EINVAL);
923  goto free_and_end;
924  }
925  if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
926  avctx->sw_pix_fmt != frames_ctx->sw_format) {
927  av_log(avctx, AV_LOG_ERROR,
928  "Mismatching AVCodecContext.sw_pix_fmt (%s) "
929  "and AVHWFramesContext.sw_format (%s)\n",
931  av_get_pix_fmt_name(frames_ctx->sw_format));
932  ret = AVERROR(EINVAL);
933  goto free_and_end;
934  }
935  avctx->sw_pix_fmt = frames_ctx->sw_format;
936  }
937  }
938 
941  avctx->pts_correction_last_pts =
942  avctx->pts_correction_last_dts = INT64_MIN;
943 
944  if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
946  av_log(avctx, AV_LOG_WARNING,
947  "gray decoding requested but not enabled at configuration time\n");
948 
949  if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
950  || avctx->internal->frame_thread_encoder)) {
951  ret = avctx->codec->init(avctx);
952  if (ret < 0) {
953  goto free_and_end;
954  }
955  codec_init_ok = 1;
956  }
957 
958  ret=0;
959 
960  if (av_codec_is_decoder(avctx->codec)) {
961  if (!avctx->bit_rate)
962  avctx->bit_rate = get_bit_rate(avctx);
963  /* validate channel layout from the decoder */
964  if (avctx->channel_layout) {
966  if (!avctx->channels)
967  avctx->channels = channels;
968  else if (channels != avctx->channels) {
969  char buf[512];
970  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
971  av_log(avctx, AV_LOG_WARNING,
972  "Channel layout '%s' with %d channels does not match specified number of channels %d: "
973  "ignoring specified channel layout\n",
974  buf, channels, avctx->channels);
975  avctx->channel_layout = 0;
976  }
977  }
978  if (avctx->channels && avctx->channels < 0 ||
979  avctx->channels > FF_SANE_NB_CHANNELS) {
980  ret = AVERROR(EINVAL);
981  goto free_and_end;
982  }
983  if (avctx->bits_per_coded_sample < 0) {
984  ret = AVERROR(EINVAL);
985  goto free_and_end;
986  }
987  if (avctx->sub_charenc) {
988  if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
989  av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
990  "supported with subtitles codecs\n");
991  ret = AVERROR(EINVAL);
992  goto free_and_end;
993  } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
994  av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
995  "subtitles character encoding will be ignored\n",
996  avctx->codec_descriptor->name);
998  } else {
999  /* input character encoding is set for a text based subtitle
1000  * codec at this point */
1003 
1005 #if CONFIG_ICONV
1006  iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1007  if (cd == (iconv_t)-1) {
1008  ret = AVERROR(errno);
1009  av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1010  "with input character encoding \"%s\"\n", avctx->sub_charenc);
1011  goto free_and_end;
1012  }
1013  iconv_close(cd);
1014 #else
1015  av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1016  "conversion needs a libavcodec built with iconv support "
1017  "for this codec\n");
1018  ret = AVERROR(ENOSYS);
1019  goto free_and_end;
1020 #endif
1021  }
1022  }
1023  }
1024 
1025 #if FF_API_AVCTX_TIMEBASE
1026  if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1027  avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1028 #endif
1029  }
1030  if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1031  av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1032  }
1033 
1034 end:
1035  ff_unlock_avcodec(codec);
1036  if (options) {
1037  av_dict_free(options);
1038  *options = tmp;
1039  }
1040 
1041  return ret;
1042 free_and_end:
1043  if (avctx->codec && avctx->codec->close &&
1044  (codec_init_ok ||
1046  avctx->codec->close(avctx);
1047 
1048  if (HAVE_THREADS && avctx->internal->thread_ctx)
1049  ff_thread_free(avctx);
1050 
1051  if (codec->priv_class && codec->priv_data_size)
1052  av_opt_free(avctx->priv_data);
1053  av_opt_free(avctx);
1054 
1055 #if FF_API_CODED_FRAME
1057  av_frame_free(&avctx->coded_frame);
1059 #endif
1060 
1061  av_dict_free(&tmp);
1062  av_freep(&avctx->priv_data);
1063  av_freep(&avctx->subtitle_header);
1064  if (avctx->internal) {
1065  av_frame_free(&avctx->internal->to_free);
1070 
1071  av_packet_free(&avctx->internal->ds.in_pkt);
1072  ff_decode_bsfs_uninit(avctx);
1073 
1074  av_freep(&avctx->internal->pool);
1075  }
1076  av_freep(&avctx->internal);
1077  avctx->codec = NULL;
1078  goto end;
1079 }
1080 
1082 {
1083  int i;
1084 
1085  for (i = 0; i < sub->num_rects; i++) {
1086  av_freep(&sub->rects[i]->data[0]);
1087  av_freep(&sub->rects[i]->data[1]);
1088  av_freep(&sub->rects[i]->data[2]);
1089  av_freep(&sub->rects[i]->data[3]);
1090  av_freep(&sub->rects[i]->text);
1091  av_freep(&sub->rects[i]->ass);
1092  av_freep(&sub->rects[i]);
1093  }
1094 
1095  av_freep(&sub->rects);
1096 
1097  memset(sub, 0, sizeof(*sub));
1098 }
1099 
1101 {
1102  int i;
1103 
1104  if (!avctx)
1105  return 0;
1106 
1107  if (avcodec_is_open(avctx)) {
1108  FramePool *pool = avctx->internal->pool;
1110  avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1112  }
1113  if (HAVE_THREADS && avctx->internal->thread_ctx)
1114  ff_thread_free(avctx);
1115  if (avctx->codec && avctx->codec->close)
1116  avctx->codec->close(avctx);
1117  avctx->internal->byte_buffer_size = 0;
1118  av_freep(&avctx->internal->byte_buffer);
1119  av_frame_free(&avctx->internal->to_free);
1124 
1125  av_packet_free(&avctx->internal->ds.in_pkt);
1126 
1127  for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
1128  av_buffer_pool_uninit(&pool->pools[i]);
1129  av_freep(&avctx->internal->pool);
1130 
1131  if (avctx->hwaccel && avctx->hwaccel->uninit)
1132  avctx->hwaccel->uninit(avctx);
1134 
1135  ff_decode_bsfs_uninit(avctx);
1136 
1137  av_freep(&avctx->internal);
1138  }
1139 
1140  for (i = 0; i < avctx->nb_coded_side_data; i++)
1141  av_freep(&avctx->coded_side_data[i].data);
1142  av_freep(&avctx->coded_side_data);
1143  avctx->nb_coded_side_data = 0;
1144 
1145  av_buffer_unref(&avctx->hw_frames_ctx);
1146  av_buffer_unref(&avctx->hw_device_ctx);
1147 
1148  if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1149  av_opt_free(avctx->priv_data);
1150  av_opt_free(avctx);
1151  av_freep(&avctx->priv_data);
1152  if (av_codec_is_encoder(avctx->codec)) {
1153  av_freep(&avctx->extradata);
1154 #if FF_API_CODED_FRAME
1156  av_frame_free(&avctx->coded_frame);
1158 #endif
1159  }
1160  avctx->codec = NULL;
1161  avctx->active_thread_type = 0;
1162 
1163  return 0;
1164 }
1165 
1166 const char *avcodec_get_name(enum AVCodecID id)
1167 {
1168  const AVCodecDescriptor *cd;
1169  AVCodec *codec;
1170 
1171  if (id == AV_CODEC_ID_NONE)
1172  return "none";
1173  cd = avcodec_descriptor_get(id);
1174  if (cd)
1175  return cd->name;
1176  av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1177  codec = avcodec_find_decoder(id);
1178  if (codec)
1179  return codec->name;
1180  codec = avcodec_find_encoder(id);
1181  if (codec)
1182  return codec->name;
1183  return "unknown_codec";
1184 }
1185 
1186 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1187 {
1188  int i, len, ret = 0;
1189 
1190 #define TAG_PRINT(x) \
1191  (((x) >= '0' && (x) <= '9') || \
1192  ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1193  ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
1194 
1195  for (i = 0; i < 4; i++) {
1196  len = snprintf(buf, buf_size,
1197  TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1198  buf += len;
1199  buf_size = buf_size > len ? buf_size - len : 0;
1200  ret += len;
1201  codec_tag >>= 8;
1202  }
1203  return ret;
1204 }
1205 
1206 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1207 {
1208  const char *codec_type;
1209  const char *codec_name;
1210  const char *profile = NULL;
1211  int64_t bitrate;
1212  int new_line = 0;
1213  AVRational display_aspect_ratio;
1214  const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1215 
1216  if (!buf || buf_size <= 0)
1217  return;
1218  codec_type = av_get_media_type_string(enc->codec_type);
1219  codec_name = avcodec_get_name(enc->codec_id);
1220  profile = avcodec_profile_name(enc->codec_id, enc->profile);
1221 
1222  snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1223  codec_name);
1224  buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1225 
1226  if (enc->codec && strcmp(enc->codec->name, codec_name))
1227  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1228 
1229  if (profile)
1230  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1231  if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1233  && enc->refs)
1234  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1235  ", %d reference frame%s",
1236  enc->refs, enc->refs > 1 ? "s" : "");
1237 
1238  if (enc->codec_tag)
1239  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1240  av_fourcc2str(enc->codec_tag), enc->codec_tag);
1241 
1242  switch (enc->codec_type) {
1243  case AVMEDIA_TYPE_VIDEO:
1244  {
1245  char detail[256] = "(";
1246 
1247  av_strlcat(buf, separator, buf_size);
1248 
1249  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1250  "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1252  if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1254  av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1256  av_strlcatf(detail, sizeof(detail), "%s, ",
1258 
1259  if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1261  enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1262  if (enc->colorspace != (int)enc->color_primaries ||
1263  enc->colorspace != (int)enc->color_trc) {
1264  new_line = 1;
1265  av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1269  } else
1270  av_strlcatf(detail, sizeof(detail), "%s, ",
1272  }
1273 
1274  if (enc->field_order != AV_FIELD_UNKNOWN) {
1275  const char *field_order = "progressive";
1276  if (enc->field_order == AV_FIELD_TT)
1277  field_order = "top first";
1278  else if (enc->field_order == AV_FIELD_BB)
1279  field_order = "bottom first";
1280  else if (enc->field_order == AV_FIELD_TB)
1281  field_order = "top coded first (swapped)";
1282  else if (enc->field_order == AV_FIELD_BT)
1283  field_order = "bottom coded first (swapped)";
1284 
1285  av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1286  }
1287 
1288  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1290  av_strlcatf(detail, sizeof(detail), "%s, ",
1292 
1293  if (strlen(detail) > 1) {
1294  detail[strlen(detail) - 2] = 0;
1295  av_strlcatf(buf, buf_size, "%s)", detail);
1296  }
1297  }
1298 
1299  if (enc->width) {
1300  av_strlcat(buf, new_line ? separator : ", ", buf_size);
1301 
1302  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1303  "%dx%d",
1304  enc->width, enc->height);
1305 
1306  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1307  (enc->width != enc->coded_width ||
1308  enc->height != enc->coded_height))
1309  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1310  " (%dx%d)", enc->coded_width, enc->coded_height);
1311 
1312  if (enc->sample_aspect_ratio.num) {
1313  av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1314  enc->width * (int64_t)enc->sample_aspect_ratio.num,
1315  enc->height * (int64_t)enc->sample_aspect_ratio.den,
1316  1024 * 1024);
1317  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1318  " [SAR %d:%d DAR %d:%d]",
1320  display_aspect_ratio.num, display_aspect_ratio.den);
1321  }
1322  if (av_log_get_level() >= AV_LOG_DEBUG) {
1323  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1324  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1325  ", %d/%d",
1326  enc->time_base.num / g, enc->time_base.den / g);
1327  }
1328  }
1329  if (encode) {
1330  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1331  ", q=%d-%d", enc->qmin, enc->qmax);
1332  } else {
1334  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1335  ", Closed Captions");
1337  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1338  ", lossless");
1339  }
1340  break;
1341  case AVMEDIA_TYPE_AUDIO:
1342  av_strlcat(buf, separator, buf_size);
1343 
1344  if (enc->sample_rate) {
1345  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1346  "%d Hz, ", enc->sample_rate);
1347  }
1348  av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1349  if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1350  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1351  ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1352  }
1353  if ( enc->bits_per_raw_sample > 0
1355  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1356  " (%d bit)", enc->bits_per_raw_sample);
1357  if (av_log_get_level() >= AV_LOG_VERBOSE) {
1358  if (enc->initial_padding)
1359  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1360  ", delay %d", enc->initial_padding);
1361  if (enc->trailing_padding)
1362  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1363  ", padding %d", enc->trailing_padding);
1364  }
1365  break;
1366  case AVMEDIA_TYPE_DATA:
1367  if (av_log_get_level() >= AV_LOG_DEBUG) {
1368  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1369  if (g)
1370  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1371  ", %d/%d",
1372  enc->time_base.num / g, enc->time_base.den / g);
1373  }
1374  break;
1375  case AVMEDIA_TYPE_SUBTITLE:
1376  if (enc->width)
1377  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1378  ", %dx%d", enc->width, enc->height);
1379  break;
1380  default:
1381  return;
1382  }
1383  if (encode) {
1384  if (enc->flags & AV_CODEC_FLAG_PASS1)
1385  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1386  ", pass 1");
1387  if (enc->flags & AV_CODEC_FLAG_PASS2)
1388  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1389  ", pass 2");
1390  }
1391  bitrate = get_bit_rate(enc);
1392  if (bitrate != 0) {
1393  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1394  ", %"PRId64" kb/s", bitrate / 1000);
1395  } else if (enc->rc_max_rate > 0) {
1396  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1397  ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1398  }
1399 }
1400 
1401 const char *av_get_profile_name(const AVCodec *codec, int profile)
1402 {
1403  const AVProfile *p;
1404  if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1405  return NULL;
1406 
1407  for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1408  if (p->profile == profile)
1409  return p->name;
1410 
1411  return NULL;
1412 }
1413 
1415 {
1416  const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1417  const AVProfile *p;
1418 
1419  if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1420  return NULL;
1421 
1422  for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1423  if (p->profile == profile)
1424  return p->name;
1425 
1426  return NULL;
1427 }
1428 
1429 unsigned avcodec_version(void)
1430 {
1433  av_assert0(AV_CODEC_ID_SRT==94216);
1435 
1436  return LIBAVCODEC_VERSION_INT;
1437 }
1438 
1439 const char *avcodec_configuration(void)
1440 {
1441  return FFMPEG_CONFIGURATION;
1442 }
1443 
1444 const char *avcodec_license(void)
1445 {
1446 #define LICENSE_PREFIX "libavcodec license: "
1447  return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
1448 }
1449 
1451 {
1452  switch (codec_id) {
1453  case AV_CODEC_ID_8SVX_EXP:
1454  case AV_CODEC_ID_8SVX_FIB:
1455  case AV_CODEC_ID_ADPCM_CT:
1463  return 4;
1464  case AV_CODEC_ID_DSD_LSBF:
1465  case AV_CODEC_ID_DSD_MSBF:
1468  case AV_CODEC_ID_PCM_ALAW:
1469  case AV_CODEC_ID_PCM_MULAW:
1470  case AV_CODEC_ID_PCM_VIDC:
1471  case AV_CODEC_ID_PCM_S8:
1473  case AV_CODEC_ID_PCM_U8:
1474  case AV_CODEC_ID_PCM_ZORK:
1475  case AV_CODEC_ID_SDX2_DPCM:
1476  return 8;
1477  case AV_CODEC_ID_PCM_S16BE:
1479  case AV_CODEC_ID_PCM_S16LE:
1481  case AV_CODEC_ID_PCM_U16BE:
1482  case AV_CODEC_ID_PCM_U16LE:
1483  return 16;
1485  case AV_CODEC_ID_PCM_S24BE:
1486  case AV_CODEC_ID_PCM_S24LE:
1488  case AV_CODEC_ID_PCM_U24BE:
1489  case AV_CODEC_ID_PCM_U24LE:
1490  return 24;
1491  case AV_CODEC_ID_PCM_S32BE:
1492  case AV_CODEC_ID_PCM_S32LE:
1494  case AV_CODEC_ID_PCM_U32BE:
1495  case AV_CODEC_ID_PCM_U32LE:
1496  case AV_CODEC_ID_PCM_F32BE:
1497  case AV_CODEC_ID_PCM_F32LE:
1498  case AV_CODEC_ID_PCM_F24LE:
1499  case AV_CODEC_ID_PCM_F16LE:
1500  return 32;
1501  case AV_CODEC_ID_PCM_F64BE:
1502  case AV_CODEC_ID_PCM_F64LE:
1503  case AV_CODEC_ID_PCM_S64BE:
1504  case AV_CODEC_ID_PCM_S64LE:
1505  return 64;
1506  default:
1507  return 0;
1508  }
1509 }
1510 
1512 {
1513  static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
1519  [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1520  [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1521  [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1523  [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1524  [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1525  };
1526  if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
1527  return AV_CODEC_ID_NONE;
1528  if (be < 0 || be > 1)
1529  be = AV_NE(1, 0);
1530  return map[fmt][be];
1531 }
1532 
1534 {
1535  switch (codec_id) {
1537  return 2;
1539  return 3;
1543  case AV_CODEC_ID_ADPCM_SWF:
1544  case AV_CODEC_ID_ADPCM_MS:
1545  return 4;
1546  default:
1547  return av_get_exact_bits_per_sample(codec_id);
1548  }
1549 }
1550 
1551 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1552  uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1553  uint8_t * extradata, int frame_size, int frame_bytes)
1554 {
1556  int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1557 
1558  /* codecs with an exact constant bits per sample */
1559  if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1560  return (frame_bytes * 8LL) / (bps * ch);
1561  bps = bits_per_coded_sample;
1562 
1563  /* codecs with a fixed packet duration */
1564  switch (id) {
1565  case AV_CODEC_ID_ADPCM_ADX: return 32;
1566  case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1567  case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1568  case AV_CODEC_ID_AMR_NB:
1569  case AV_CODEC_ID_EVRC:
1570  case AV_CODEC_ID_GSM:
1571  case AV_CODEC_ID_QCELP:
1572  case AV_CODEC_ID_RA_288: return 160;
1573  case AV_CODEC_ID_AMR_WB:
1574  case AV_CODEC_ID_GSM_MS: return 320;
1575  case AV_CODEC_ID_MP1: return 384;
1576  case AV_CODEC_ID_ATRAC1: return 512;
1577  case AV_CODEC_ID_ATRAC9:
1578  case AV_CODEC_ID_ATRAC3: return 1024 * framecount;
1579  case AV_CODEC_ID_ATRAC3P: return 2048;
1580  case AV_CODEC_ID_MP2:
1581  case AV_CODEC_ID_MUSEPACK7: return 1152;
1582  case AV_CODEC_ID_AC3: return 1536;
1583  }
1584 
1585  if (sr > 0) {
1586  /* calc from sample rate */
1587  if (id == AV_CODEC_ID_TTA)
1588  return 256 * sr / 245;
1589  else if (id == AV_CODEC_ID_DST)
1590  return 588 * sr / 44100;
1591 
1592  if (ch > 0) {
1593  /* calc from sample rate and channels */
1594  if (id == AV_CODEC_ID_BINKAUDIO_DCT)
1595  return (480 << (sr / 22050)) / ch;
1596  }
1597 
1598  if (id == AV_CODEC_ID_MP3)
1599  return sr <= 24000 ? 576 : 1152;
1600  }
1601 
1602  if (ba > 0) {
1603  /* calc from block_align */
1604  if (id == AV_CODEC_ID_SIPR) {
1605  switch (ba) {
1606  case 20: return 160;
1607  case 19: return 144;
1608  case 29: return 288;
1609  case 37: return 480;
1610  }
1611  } else if (id == AV_CODEC_ID_ILBC) {
1612  switch (ba) {
1613  case 38: return 160;
1614  case 50: return 240;
1615  }
1616  }
1617  }
1618 
1619  if (frame_bytes > 0) {
1620  /* calc from frame_bytes only */
1621  if (id == AV_CODEC_ID_TRUESPEECH)
1622  return 240 * (frame_bytes / 32);
1623  if (id == AV_CODEC_ID_NELLYMOSER)
1624  return 256 * (frame_bytes / 64);
1625  if (id == AV_CODEC_ID_RA_144)
1626  return 160 * (frame_bytes / 20);
1627 
1628  if (bps > 0) {
1629  /* calc from frame_bytes and bits_per_coded_sample */
1631  return frame_bytes * 8 / bps;
1632  }
1633 
1634  if (ch > 0 && ch < INT_MAX/16) {
1635  /* calc from frame_bytes and channels */
1636  switch (id) {
1637  case AV_CODEC_ID_ADPCM_AFC:
1638  return frame_bytes / (9 * ch) * 16;
1639  case AV_CODEC_ID_ADPCM_PSX:
1640  case AV_CODEC_ID_ADPCM_DTK:
1641  return frame_bytes / (16 * ch) * 28;
1642  case AV_CODEC_ID_ADPCM_4XM:
1645  return (frame_bytes - 4 * ch) * 2 / ch;
1647  return (frame_bytes - 4) * 2 / ch;
1649  return (frame_bytes - 8) * 2 / ch;
1650  case AV_CODEC_ID_ADPCM_THP:
1652  if (extradata)
1653  return frame_bytes * 14 / (8 * ch);
1654  break;
1655  case AV_CODEC_ID_ADPCM_XA:
1656  return (frame_bytes / 128) * 224 / ch;
1658  return (frame_bytes - 6 - ch) / ch;
1659  case AV_CODEC_ID_ROQ_DPCM:
1660  return (frame_bytes - 8) / ch;
1661  case AV_CODEC_ID_XAN_DPCM:
1662  return (frame_bytes - 2 * ch) / ch;
1663  case AV_CODEC_ID_MACE3:
1664  return 3 * frame_bytes / ch;
1665  case AV_CODEC_ID_MACE6:
1666  return 6 * frame_bytes / ch;
1667  case AV_CODEC_ID_PCM_LXF:
1668  return 2 * (frame_bytes / (5 * ch));
1669  case AV_CODEC_ID_IAC:
1670  case AV_CODEC_ID_IMC:
1671  return 4 * frame_bytes / ch;
1672  }
1673 
1674  if (tag) {
1675  /* calc from frame_bytes, channels, and codec_tag */
1676  if (id == AV_CODEC_ID_SOL_DPCM) {
1677  if (tag == 3)
1678  return frame_bytes / ch;
1679  else
1680  return frame_bytes * 2 / ch;
1681  }
1682  }
1683 
1684  if (ba > 0) {
1685  /* calc from frame_bytes, channels, and block_align */
1686  int blocks = frame_bytes / ba;
1687  switch (id) {
1689  if (bps < 2 || bps > 5)
1690  return 0;
1691  return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1693  return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1695  return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1697  return blocks * ((ba - 4 * ch) * 2 / ch);
1698  case AV_CODEC_ID_ADPCM_MS:
1699  return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1701  return blocks * (ba - 16) * 2 / ch;
1702  }
1703  }
1704 
1705  if (bps > 0) {
1706  /* calc from frame_bytes, channels, and bits_per_coded_sample */
1707  switch (id) {
1708  case AV_CODEC_ID_PCM_DVD:
1709  if(bps<4 || frame_bytes<3)
1710  return 0;
1711  return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1713  if(bps<4 || frame_bytes<4)
1714  return 0;
1715  return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1716  case AV_CODEC_ID_S302M:
1717  return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1718  }
1719  }
1720  }
1721  }
1722 
1723  /* Fall back on using frame_size */
1724  if (frame_size > 1 && frame_bytes)
1725  return frame_size;
1726 
1727  //For WMA we currently have no other means to calculate duration thus we
1728  //do it here by assuming CBR, which is true for all known cases.
1729  if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1730  if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1731  return (frame_bytes * 8LL * sr) / bitrate;
1732  }
1733 
1734  return 0;
1735 }
1736 
1737 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1738 {
1739  return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1740  avctx->channels, avctx->block_align,
1741  avctx->codec_tag, avctx->bits_per_coded_sample,
1742  avctx->bit_rate, avctx->extradata, avctx->frame_size,
1743  frame_bytes);
1744 }
1745 
1747 {
1748  return get_audio_frame_duration(par->codec_id, par->sample_rate,
1749  par->channels, par->block_align,
1750  par->codec_tag, par->bits_per_coded_sample,
1751  par->bit_rate, par->extradata, par->frame_size,
1752  frame_bytes);
1753 }
1754 
1755 #if !HAVE_THREADS
1757 {
1758  return -1;
1759 }
1760 
1761 #endif
1762 
1763 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1764 {
1765  unsigned int n = 0;
1766 
1767  while (v >= 0xff) {
1768  *s++ = 0xff;
1769  v -= 0xff;
1770  n++;
1771  }
1772  *s = v;
1773  n++;
1774  return n;
1775 }
1776 
1777 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1778 {
1779  int i;
1780  for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1781  return i;
1782 }
1783 
1785 {
1786  int i;
1787  if (!codec->hw_configs || index < 0)
1788  return NULL;
1789  for (i = 0; i <= index; i++)
1790  if (!codec->hw_configs[i])
1791  return NULL;
1792  return &codec->hw_configs[index]->public;
1793 }
1794 
1795 #if FF_API_USER_VISIBLE_AVHWACCEL
1797 {
1798  return NULL;
1799 }
1800 
1802 {
1803 }
1804 #endif
1805 
1806 #if FF_API_LOCKMGR
1807 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1808 {
1809  return 0;
1810 }
1811 #endif
1812 
1813 unsigned int avpriv_toupper4(unsigned int x)
1814 {
1815  return av_toupper(x & 0xFF) +
1816  (av_toupper((x >> 8) & 0xFF) << 8) +
1817  (av_toupper((x >> 16) & 0xFF) << 16) +
1818 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1819 }
1820 
1822 {
1823  int ret;
1824 
1825  dst->owner[0] = src->owner[0];
1826  dst->owner[1] = src->owner[1];
1827 
1828  ret = av_frame_ref(dst->f, src->f);
1829  if (ret < 0)
1830  return ret;
1831 
1832  av_assert0(!dst->progress);
1833 
1834  if (src->progress &&
1835  !(dst->progress = av_buffer_ref(src->progress))) {
1836  ff_thread_release_buffer(dst->owner[0], dst);
1837  return AVERROR(ENOMEM);
1838  }
1839 
1840  return 0;
1841 }
1842 
1843 #if !HAVE_THREADS
1844 
1846 {
1847  return ff_get_format(avctx, fmt);
1848 }
1849 
1851 {
1852  f->owner[0] = f->owner[1] = avctx;
1853  return ff_get_buffer(avctx, f->f, flags);
1854 }
1855 
1857 {
1858  if (f->f)
1859  av_frame_unref(f->f);
1860 }
1861 
1863 {
1864 }
1865 
1866 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
1867 {
1868 }
1869 
1870 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1871 {
1872 }
1873 
1875 {
1876  return 1;
1877 }
1878 
1880 {
1881  return 0;
1882 }
1883 
1885 {
1886 }
1887 
1888 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1889 {
1890 }
1891 
1892 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
1893 {
1894 }
1895 
1896 #endif
1897 
1899 {
1900  return !!s->internal;
1901 }
1902 
1903 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
1904 {
1905  int ret;
1906  char *str;
1907 
1908  ret = av_bprint_finalize(buf, &str);
1909  if (ret < 0)
1910  return ret;
1911  if (!av_bprint_is_complete(buf)) {
1912  av_free(str);
1913  return AVERROR(ENOMEM);
1914  }
1915 
1916  avctx->extradata = str;
1917  /* Note: the string is NUL terminated (so extradata can be read as a
1918  * string), but the ending character is not accounted in the size (in
1919  * binary formats you are likely not supposed to mux that character). When
1920  * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
1921  * zeros. */
1922  avctx->extradata_size = buf->len;
1923  return 0;
1924 }
1925 
1927  const uint8_t *end,
1928  uint32_t *av_restrict state)
1929 {
1930  int i;
1931 
1932  av_assert0(p <= end);
1933  if (p >= end)
1934  return end;
1935 
1936  for (i = 0; i < 3; i++) {
1937  uint32_t tmp = *state << 8;
1938  *state = tmp + *(p++);
1939  if (tmp == 0x100 || p == end)
1940  return p;
1941  }
1942 
1943  while (p < end) {
1944  if (p[-1] > 1 ) p += 3;
1945  else if (p[-2] ) p += 2;
1946  else if (p[-3]|(p[-1]-1)) p++;
1947  else {
1948  p++;
1949  break;
1950  }
1951  }
1952 
1953  p = FFMIN(p, end) - 4;
1954  *state = AV_RB32(p);
1955 
1956  return p + 4;
1957 }
1958 
1960 {
1961  AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
1962  if (!props)
1963  return NULL;
1964 
1965  if (size)
1966  *size = sizeof(*props);
1967 
1968  props->vbv_delay = UINT64_MAX;
1969 
1970  return props;
1971 }
1972 
1974 {
1976  AVCPBProperties *props;
1977  size_t size;
1978 
1979  props = av_cpb_properties_alloc(&size);
1980  if (!props)
1981  return NULL;
1982 
1983  tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
1984  if (!tmp) {
1985  av_freep(&props);
1986  return NULL;
1987  }
1988 
1989  avctx->coded_side_data = tmp;
1990  avctx->nb_coded_side_data++;
1991 
1993  avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
1994  avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
1995 
1996  return props;
1997 }
1998 
2000 {
2001  av_freep(&par->extradata);
2002 
2003  memset(par, 0, sizeof(*par));
2004 
2006  par->codec_id = AV_CODEC_ID_NONE;
2007  par->format = -1;
2014  par->sample_aspect_ratio = (AVRational){ 0, 1 };
2015  par->profile = FF_PROFILE_UNKNOWN;
2016  par->level = FF_LEVEL_UNKNOWN;
2017 }
2018 
2020 {
2021  AVCodecParameters *par = av_mallocz(sizeof(*par));
2022 
2023  if (!par)
2024  return NULL;
2026  return par;
2027 }
2028 
2030 {
2031  AVCodecParameters *par = *ppar;
2032 
2033  if (!par)
2034  return;
2036 
2037  av_freep(ppar);
2038 }
2039 
2041 {
2043  memcpy(dst, src, sizeof(*dst));
2044 
2045  dst->extradata = NULL;
2046  dst->extradata_size = 0;
2047  if (src->extradata) {
2049  if (!dst->extradata)
2050  return AVERROR(ENOMEM);
2051  memcpy(dst->extradata, src->extradata, src->extradata_size);
2052  dst->extradata_size = src->extradata_size;
2053  }
2054 
2055  return 0;
2056 }
2057 
2059  const AVCodecContext *codec)
2060 {
2062 
2063  par->codec_type = codec->codec_type;
2064  par->codec_id = codec->codec_id;
2065  par->codec_tag = codec->codec_tag;
2066 
2067  par->bit_rate = codec->bit_rate;
2070  par->profile = codec->profile;
2071  par->level = codec->level;
2072 
2073  switch (par->codec_type) {
2074  case AVMEDIA_TYPE_VIDEO:
2075  par->format = codec->pix_fmt;
2076  par->width = codec->width;
2077  par->height = codec->height;
2078  par->field_order = codec->field_order;
2079  par->color_range = codec->color_range;
2080  par->color_primaries = codec->color_primaries;
2081  par->color_trc = codec->color_trc;
2082  par->color_space = codec->colorspace;
2085  par->video_delay = codec->has_b_frames;
2086  break;
2087  case AVMEDIA_TYPE_AUDIO:
2088  par->format = codec->sample_fmt;
2089  par->channel_layout = codec->channel_layout;
2090  par->channels = codec->channels;
2091  par->sample_rate = codec->sample_rate;
2092  par->block_align = codec->block_align;
2093  par->frame_size = codec->frame_size;
2094  par->initial_padding = codec->initial_padding;
2095  par->trailing_padding = codec->trailing_padding;
2096  par->seek_preroll = codec->seek_preroll;
2097  break;
2098  case AVMEDIA_TYPE_SUBTITLE:
2099  par->width = codec->width;
2100  par->height = codec->height;
2101  break;
2102  }
2103 
2104  if (codec->extradata) {
2106  if (!par->extradata)
2107  return AVERROR(ENOMEM);
2108  memcpy(par->extradata, codec->extradata, codec->extradata_size);
2109  par->extradata_size = codec->extradata_size;
2110  }
2111 
2112  return 0;
2113 }
2114 
2116  const AVCodecParameters *par)
2117 {
2118  codec->codec_type = par->codec_type;
2119  codec->codec_id = par->codec_id;
2120  codec->codec_tag = par->codec_tag;
2121 
2122  codec->bit_rate = par->bit_rate;
2125  codec->profile = par->profile;
2126  codec->level = par->level;
2127 
2128  switch (par->codec_type) {
2129  case AVMEDIA_TYPE_VIDEO:
2130  codec->pix_fmt = par->format;
2131  codec->width = par->width;
2132  codec->height = par->height;
2133  codec->field_order = par->field_order;
2134  codec->color_range = par->color_range;
2135  codec->color_primaries = par->color_primaries;
2136  codec->color_trc = par->color_trc;
2137  codec->colorspace = par->color_space;
2140  codec->has_b_frames = par->video_delay;
2141  break;
2142  case AVMEDIA_TYPE_AUDIO:
2143  codec->sample_fmt = par->format;
2144  codec->channel_layout = par->channel_layout;
2145  codec->channels = par->channels;
2146  codec->sample_rate = par->sample_rate;
2147  codec->block_align = par->block_align;
2148  codec->frame_size = par->frame_size;
2149  codec->delay =
2150  codec->initial_padding = par->initial_padding;
2151  codec->trailing_padding = par->trailing_padding;
2152  codec->seek_preroll = par->seek_preroll;
2153  break;
2154  case AVMEDIA_TYPE_SUBTITLE:
2155  codec->width = par->width;
2156  codec->height = par->height;
2157  break;
2158  }
2159 
2160  if (par->extradata) {
2161  av_freep(&codec->extradata);
2163  if (!codec->extradata)
2164  return AVERROR(ENOMEM);
2165  memcpy(codec->extradata, par->extradata, par->extradata_size);
2166  codec->extradata_size = par->extradata_size;
2167  }
2168 
2169  return 0;
2170 }
2171 
2172 int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
2173  void **data, size_t *sei_size)
2174 {
2175  AVFrameSideData *side_data = NULL;
2176  uint8_t *sei_data;
2177 
2178  if (frame)
2179  side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
2180 
2181  if (!side_data) {
2182  *data = NULL;
2183  return 0;
2184  }
2185 
2186  *sei_size = side_data->size + 11;
2187  *data = av_mallocz(*sei_size + prefix_len);
2188  if (!*data)
2189  return AVERROR(ENOMEM);
2190  sei_data = (uint8_t*)*data + prefix_len;
2191 
2192  // country code
2193  sei_data[0] = 181;
2194  sei_data[1] = 0;
2195  sei_data[2] = 49;
2196 
2197  /**
2198  * 'GA94' is standard in North America for ATSC, but hard coding
2199  * this style may not be the right thing to do -- other formats
2200  * do exist. This information is not available in the side_data
2201  * so we are going with this right now.
2202  */
2203  AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
2204  sei_data[7] = 3;
2205  sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
2206  sei_data[9] = 0;
2207 
2208  memcpy(sei_data + 10, side_data->data, side_data->size);
2209 
2210  sei_data[side_data->size+10] = 255;
2211 
2212  return 0;
2213 }
2214 
2216 {
2217  AVRational framerate = avctx->framerate;
2218  int bits_per_coded_sample = avctx->bits_per_coded_sample;
2219  int64_t bitrate;
2220 
2221  if (!(framerate.num && framerate.den))
2222  framerate = av_inv_q(avctx->time_base);
2223  if (!(framerate.num && framerate.den))
2224  return 0;
2225 
2226  if (!bits_per_coded_sample) {
2228  bits_per_coded_sample = av_get_bits_per_pixel(desc);
2229  }
2230  bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2231  framerate.num / framerate.den;
2232 
2233  return bitrate;
2234 }
2235 
2236 int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
2237  const int * array_valid_values, int default_value)
2238 {
2239  int i = 0, ref_val;
2240 
2241  while (1) {
2242  ref_val = array_valid_values[i];
2243  if (ref_val == INT_MAX)
2244  break;
2245  if (val == ref_val)
2246  return val;
2247  i++;
2248  }
2249  /* val is not a valid value */
2250  av_log(ctx, AV_LOG_DEBUG,
2251  "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
2252  return default_value;
2253 }
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:2215
#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:86
#define FF_COMPLIANCE_EXPERIMENTAL
Allow nonstandardized experimental things.
Definition: avcodec.h:2633
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: hwaccel.h:34
#define CONFIG_FRAME_THREAD_ENCODER
Definition: config.h:619
enum AVChromaLocation chroma_location
Definition: avcodec.h:4047
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:3163
#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:1371
const struct AVCodec * codec
Definition: avcodec.h:1574
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:3105
const char const char void * val
Definition: avisynth_c.h:863
enum AVFieldOrder field_order
Video only.
Definition: avcodec.h:4038
static int64_t get_bit_rate(AVCodecContext *ctx)
Definition: utils.c:500
const AVCodecDescriptor * codec_descriptor
AVCodecDescriptor.
Definition: avcodec.h:3126
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: avcodec.h:4045
Number of sample formats. DO NOT USE if linking dynamically.
Definition: samplefmt.h:74
#define AV_NUM_DATA_POINTERS
Definition: frame.h:296
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:3162
static AVMutex mutex
Definition: log.c:44
int64_t pts_correction_num_faulty_dts
Number of incorrect PTS values so far.
Definition: avcodec.h:3143
void av_buffer_unref(AVBufferRef **buf)
Free a given reference and automatically free the buffer if there are no more references to it...
Definition: buffer.c:125
int size
unsigned int fourcc
Definition: raw.h:36
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2522
This structure describes decoded (raw) audio or video data.
Definition: frame.h:295
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
Definition: allcodecs.c:885
planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:249
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:159
const struct AVCodecHWConfigInternal ** hw_configs
Array of pointers to hardware configurations supported by the codec, or NULL if no hardware supported...
Definition: avcodec.h:3622
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:1753
const char * fmt
Definition: avisynth_c.h:861
AVPacket * last_pkt_props
Properties (timestamps+side data) extracted from the last packet passed for decoding.
Definition: internal.h:172
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
misc image utilities
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
AVFrame * f
Definition: thread.h:35
int64_t bit_rate
the average bitrate
Definition: avcodec.h:1615
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:159
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
const char * g
Definition: vf_curves.c:115
const char * desc
Definition: nvenc.c:68
#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:2474
AVRational sample_aspect_ratio
Video only.
Definition: avcodec.h:4033
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:2471
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:250
channels
Definition: aptx.c:30
void av_opt_set_defaults(void *s)
Set the values of all AVOption fields to their default values.
Definition: opt.c:1305
const char * avcodec_configuration(void)
Return the libavcodec build-time configuration.
Definition: utils.c:1439
uint32_t fourcc
Definition: vaapi_decode.c:238
enum AVCodecID codec_id
Definition: qsv.c:72
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:2200
int ff_decode_bsfs_init(AVCodecContext *avctx)
Definition: decode.c:185
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: avcodec.h:3957
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
int num
Numerator.
Definition: rational.h:59
static int ff_mutex_lock(AVMutex *mutex)
Definition: thread.h:155
#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:3161
static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
Definition: utils.c:524
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_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/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64, *(const int64_t *) pi *(1.0/(INT64_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 *(INT64_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 *(INT64_C(1)<< 63))) #define FMT_PAIR_FUNC(out, in) static conv_func_type *const fmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB *AV_SAMPLE_FMT_NB]={ FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64), };static void cpy1(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, len);} static void cpy2(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 2 *len);} static void cpy4(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 4 *len);} static void cpy8(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 8 *len);} AudioConvert *swri_audio_convert_alloc(enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, const int *ch_map, int flags) { AudioConvert *ctx;conv_func_type *f=fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt)+AV_SAMPLE_FMT_NB *av_get_packed_sample_fmt(in_fmt)];if(!f) return NULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) return NULL;if(channels==1){ in_fmt=av_get_planar_sample_fmt(in_fmt);out_fmt=av_get_planar_sample_fmt(out_fmt);} ctx->channels=channels;ctx->conv_f=f;ctx->ch_map=ch_map;if(in_fmt==AV_SAMPLE_FMT_U8||in_fmt==AV_SAMPLE_FMT_U8P) memset(ctx->silence, 0x80, sizeof(ctx->silence));if(out_fmt==in_fmt &&!ch_map) { switch(av_get_bytes_per_sample(in_fmt)){ case 1:ctx->simd_f=cpy1;break;case 2:ctx->simd_f=cpy2;break;case 4:ctx->simd_f=cpy4;break;case 8:ctx->simd_f=cpy8;break;} } if(HAVE_X86ASM &&HAVE_MMX) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);return ctx;} void swri_audio_convert_free(AudioConvert **ctx) { av_freep(ctx);} int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len) { int ch;int off=0;const int os=(out->planar ? 1 :out->ch_count) *out->bps;unsigned misaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask) { int planes=in->planar ? in->ch_count :1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;} if(ctx->out_simd_align_mask) { int planes=out->planar ? out->ch_count :1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;} if(ctx->simd_f &&!ctx->ch_map &&!misaligned){ off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){ if(out->planar==in->planar){ int planes=out->planar ? out->ch_count :1;for(ch=0;ch< planes;ch++){ ctx->simd_f(out-> ch ch
Definition: audioconvert.c:56
const char * b
Definition: vf_curves.c:116
const char * avcodec_license(void)
Return the libavcodec license.
Definition: utils.c:1444
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:1944
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition: pixfmt.h:189
double, planar
Definition: samplefmt.h:70
enum AVMediaType codec_type
Definition: rtp.c:37
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1775
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:208
unsigned num_rects
Definition: avcodec.h:3937
int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec)
Definition: utils.c:496
void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
Same behaviour av_fast_malloc but the buffer has additional AV_INPUT_BUFFER_PADDING_SIZE at the end w...
Definition: utils.c:70
planar GBR 4:4:4 36bpp, little-endian
Definition: pixfmt.h:255
The following 12 formats have the disadvantage of needing 1 format for each bit depth.
Definition: pixfmt.h:156
#define AV_CODEC_CAP_EXPERIMENTAL
Codec is experimental and is thus avoided in favor of non experimental encoders.
Definition: avcodec.h:1029
mpegvideo header.
enum AVMediaType type
Definition: avcodec.h:3494
AVBufferPool * pools[4]
Pools for each data plane.
Definition: internal.h:105
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:2796
enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
Wrapper around get_format() for frame-multithreaded codecs.
Definition: utils.c:1845
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:1807
int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
Converts AVChromaLocation to swscale x/y chroma position.
Definition: utils.c:353
#define AV_CODEC_CAP_AUTO_THREADS
Codec supports avctx->thread_count == 0 (auto).
Definition: avcodec.h:1049
const struct AVHWAccel * hwaccel
Hardware accelerator in use.
Definition: avcodec.h:2729
int trailing_padding
Audio only.
Definition: avcodec.h:4093
#define src
Definition: vp8dsp.c:254
int profile
profile
Definition: avcodec.h:2898
planar GBR 4:4:4 36bpp, big-endian
Definition: pixfmt.h:254
AVCodec.
Definition: avcodec.h:3481
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:2262
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
This struct describes the properties of an encoded stream.
Definition: avcodec.h:3949
AVLockOp
Lock operation used by lockmgr.
Definition: avcodec.h:6129
int av_bprint_finalize(AVBPrint *buf, char **ret_str)
Finalize a print buffer.
Definition: bprint.c:235
int ff_set_dimensions(AVCodecContext *s, int width, int height)
Check that the provided frame dimensions are valid and set them on the codec context.
Definition: utils.c:104
#define FFMPEG_LICENSE
Definition: config.h:5
char * text
0 terminated plain UTF-8 text
Definition: avcodec.h:3921
enum AVColorSpace color_space
Definition: avcodec.h:4046
const char * av_color_space_name(enum AVColorSpace space)
Definition: pixdesc.c:2915
Macro definitions for various function/variable attributes.
void ff_decode_bsfs_uninit(AVCodecContext *avctx)
Definition: decode.c:2053
int frame_size
Audio only.
Definition: avcodec.h:4078
static AVMutex codec_mutex
Definition: utils.c:68
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:1688
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:734
AVSubtitleRect ** rects
Definition: avcodec.h:3938
int av_codec_is_decoder(const AVCodec *codec)
Definition: utils.c:99
int(* uninit)(AVCodecContext *avctx)
Uninitialize the hwaccel private data.
Definition: avcodec.h:3787
void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
Definition: utils.c:1888
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:376
int av_codec_is_encoder(const AVCodec *codec)
Definition: utils.c:94
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:1170
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:338
#define FF_LEVEL_UNKNOWN
Definition: avcodec.h:3019
#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:112
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_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/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64, *(const int64_t *) pi *(1.0/(INT64_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 *(INT64_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 *(INT64_C(1)<< 63))) #define FMT_PAIR_FUNC(out, in) static conv_func_type *const fmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB *AV_SAMPLE_FMT_NB]={ FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64), };static void cpy1(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, len);} static void cpy2(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 2 *len);} static void cpy4(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 4 *len);} static void cpy8(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 8 *len);} AudioConvert *swri_audio_convert_alloc(enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, const int *ch_map, int flags) { AudioConvert *ctx;conv_func_type *f=fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt)+AV_SAMPLE_FMT_NB *av_get_packed_sample_fmt(in_fmt)];if(!f) return NULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) return NULL;if(channels==1){ in_fmt=av_get_planar_sample_fmt(in_fmt);out_fmt=av_get_planar_sample_fmt(out_fmt);} ctx->channels=channels;ctx->conv_f=f;ctx->ch_map=ch_map;if(in_fmt==AV_SAMPLE_FMT_U8||in_fmt==AV_SAMPLE_FMT_U8P) memset(ctx->silence, 0x80, sizeof(ctx->silence));if(out_fmt==in_fmt &&!ch_map) { switch(av_get_bytes_per_sample(in_fmt)){ case 1:ctx->simd_f=cpy1;break;case 2:ctx->simd_f=cpy2;break;case 4:ctx->simd_f=cpy4;break;case 8:ctx->simd_f=cpy8;break;} } if(HAVE_X86ASM &&HAVE_MMX) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);return ctx;} void swri_audio_convert_free(AudioConvert **ctx) { av_freep(ctx);} int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len) { int ch;int off=0;const int os=(out->planar ? 1 :out->ch_count) *out->bps;unsigned misaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask) { int planes=in->planar ? in->ch_count :1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;} if(ctx->out_simd_align_mask) { int planes=out->planar ? out->ch_count :1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;} if(ctx->simd_f &&!ctx->ch_map &&!misaligned){ off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){ if(out->planar==in->planar){ int planes=out->planar ? out->ch_count :1;for(ch=0;ch< planes;ch++){ ctx->simd_f(out-> ch const uint8_t **in ch off *out planar
Definition: audioconvert.c:56
#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
void av_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
Definition: avpacket.c:62
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:2233
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_cold
Definition: attributes.h:82
AV_SAMPLE_FMT_U8
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:189
Opaque data information usually continuous.
Definition: avutil.h:203
int width
Video only.
Definition: avcodec.h:4023
8 bits with AV_PIX_FMT_RGB32 palette
Definition: pixfmt.h:77
AVOptions.
AVCodecParameters * avcodec_parameters_alloc(void)
Allocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0).
Definition: utils.c:2019
#define f(width, name)
Definition: cbs_vp9.c:255
const char * av_color_range_name(enum AVColorRange range)
Definition: pixdesc.c:2848
#define AV_RB32
Definition: intreadwrite.h:130
void * thread_ctx
Definition: internal.h:163
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
int ff_side_data_update_matrix_encoding(AVFrame *frame, enum AVMatrixEncoding matrix_encoding)
Add or update AV_FRAME_DATA_MATRIXENCODING side data.
Definition: utils.c:134
int trailing_padding
Audio only.
Definition: avcodec.h:3284
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
#define emms_c()
Definition: internal.h:55
#define FF_CODEC_PROPERTY_LOSSLESS
Definition: avcodec.h:3228
#define LIBAVCODEC_VERSION_INT
Definition: version.h:34
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1666
#define LICENSE_PREFIX
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:2115
static AVFrame * frame
planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition: pixfmt.h:191
AVCPBProperties * ff_add_cpb_side_data(AVCodecContext *avctx)
Add a CPB properties side data to an encoding context.
Definition: utils.c:1973
Public header for CRC hash function implementation.
void * frame_thread_encoder
Definition: internal.h:180
int initial_padding
Audio only.
Definition: avcodec.h:4086
const char data[16]
Definition: mxf.c:91
Structure to hold side data for an AVFrame.
Definition: frame.h:201
int av_image_check_sar(unsigned int w, unsigned int h, AVRational sar)
Check if the given sample aspect ratio of an image is valid.
Definition: imgutils.c:287
int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Call avcodec_open2 recursively by decrementing counter, unlocking mutex, calling the function and the...
Definition: utils.c:536
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:1496
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:194
#define av_restrict
Definition: config.h:10
void av_memcpy_backptr(uint8_t *dst, int back, int cnt)
Overlapping memcpy() implementation.
Definition: mem.c:426
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
uint8_t * data
Definition: avcodec.h:1421
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:1551
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
Definition: avcodec.h:2804
int av_codec_get_max_lowres(const AVCodec *codec)
Definition: utils.c:490
enum AVSampleFormat av_get_planar_sample_fmt(enum AVSampleFormat sample_fmt)
Get the planar alternative form of the given sample format.
Definition: samplefmt.c:84
int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
Return the index into tab at which {a,b} match elements {[0],[1]} of tab.
Definition: utils.c:1777
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:2789
planar YUV 4:4:0,24bpp, (1 Cr & Cb sample per 1x2 Y samples), big-endian
Definition: pixfmt.h:278
int ff_set_sar(AVCodecContext *avctx, AVRational sar)
Check that the provided sample aspect ratio is valid and set it on the codec context.
Definition: utils.c:119
#define AV_CODEC_FLAG_GRAY
Only decode/encode grayscale.
Definition: avcodec.h:883
signed 32 bits
Definition: samplefmt.h:62
void * av_realloc_array(void *ptr, size_t nmemb, size_t size)
Allocate, reallocate, or free an array.
Definition: mem.c:198
AVCPBProperties * av_cpb_properties_alloc(size_t *size)
Allocate a CPB properties structure and initialize its fields to default values.
Definition: utils.c:1959
enum AVChromaLocation chroma_sample_location
This defines the location of chroma samples.
Definition: avcodec.h:2207
static void codec_parameters_reset(AVCodecParameters *par)
Definition: utils.c:1999
#define FFALIGN(x, a)
Definition: macros.h:48
uint64_t channel_layout
Audio only.
Definition: avcodec.h:4059
#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
FramePool * pool
Definition: internal.h:161
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
Definition: avcodec.h:3986
#define FF_COMPLIANCE_UNOFFICIAL
Allow unofficial extensions.
Definition: avcodec.h:2632
void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, int linesize_align[AV_NUM_DATA_POINTERS])
Modify width and height values so that they will result in a memory buffer that is acceptable for the...
Definition: utils.c:154
static void * av_x_if_null(const void *p, const void *x)
Return x default pointer in case p is NULL.
Definition: avutil.h:308
void av_register_hwaccel(AVHWAccel *hwaccel)
Register the hardware accelerator hwaccel.
Definition: utils.c:1801
planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:157
Libavcodec version macros.
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:1100
enum AVCodecID id
Definition: avcodec.h:3495
const uint64_t * channel_layouts
array of support channel layouts, or NULL if unknown. array is terminated by 0
Definition: avcodec.h:3505
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:2939
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:176
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: avcodec.h:215
unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
Definition: utils.c:485
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Copy the contents of src to dst.
Definition: utils.c:2040
int width
Definition: frame.h:353
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
int has_b_frames
Size of the frame reordering buffer in the decoder.
Definition: avcodec.h:1855
int av_get_bits_per_sample(enum AVCodecID codec_id)
Return codec bits per sample.
Definition: utils.c:1533
#define AVMutex
Definition: thread.h:151
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
int ff_int_from_list_or_default(void *ctx, const char *val_name, int val, const int *array_valid_values, int default_value)
Check if a value is in the list.
Definition: utils.c:2236
#define MAKE_ACCESSORS(str, name, type, field)
Definition: internal.h:91
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:136
#define AVERROR(e)
Definition: error.h:43
unsigned int avpriv_toupper4(unsigned int x)
Definition: utils.c:1813
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:202
int(* send_frame)(AVCodecContext *avctx, const AVFrame *frame)
Encode API with decoupled packet/frame dataflow.
Definition: avcodec.h:3589
int qmax
maximum quantizer
Definition: avcodec.h:2414
int64_t pts_correction_last_pts
Number of incorrect DTS values so far.
Definition: avcodec.h:3144
int active_thread_type
Which multithreading methods are in use by the codec.
Definition: avcodec.h:2843
enum AVColorPrimaries color_primaries
Definition: avcodec.h:4044
int avcodec_is_open(AVCodecContext *s)
Definition: utils.c:1898
int video_delay
Video only.
Definition: avcodec.h:4052
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:443
AVFrame * buffer_frame
Definition: internal.h:202
int capabilities
Codec capabilities.
Definition: avcodec.h:3500
int initial_padding
Audio only.
Definition: avcodec.h:3096
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
ATSC A53 Part 4 Closed Captions.
Definition: frame.h:58
int ff_thread_init(AVCodecContext *s)
Definition: utils.c:1756
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: avcodec.h:565
#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: avcodec.h:3953
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:1645
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: avcodec.h:1423
int av_log_get_level(void)
Get the current log level.
Definition: log.c:380
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:236
const char * name
Name of the codec implementation.
Definition: avcodec.h:3488
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:3292
const struct AVProfile * profiles
If non-NULL, an array of profiles recognized for this codec.
Definition: avcodec.h:743
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
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:2029
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:1746
const char av_codec_ffversion[]
Definition: utils.c:66
static int ff_mutex_unlock(AVMutex *mutex)
Definition: thread.h:156
const char * av_color_primaries_name(enum AVColorPrimaries primaries)
Definition: pixdesc.c:2867
reference-counted frame API
const AVCodecDescriptor * avcodec_descriptor_get(enum AVCodecID id)
Definition: codec_desc.c:3257
uint64_t channel_layout
Audio channel layout.
Definition: avcodec.h:2276
int extradata_size
Size of the extradata content in bytes.
Definition: avcodec.h:3975
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:2428
int props
Codec properties, a combination of AV_CODEC_PROP_* flags.
Definition: avcodec.h:732
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:253
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:106
int refs
number of reference frames
Definition: avcodec.h:2153
planar GBR 4:4:4:4 48bpp, big-endian
Definition: pixfmt.h:287
int block_align
Audio only.
Definition: avcodec.h:4074
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
#define AV_MUTEX_INITIALIZER
Definition: thread.h:152
audio channel layout utility functions
enum AVPixelFormat * pix_fmts
array of supported pixel formats, or NULL if unknown, array is terminated by -1
Definition: avcodec.h:3502
#define FF_THREAD_FRAME
Decode more than one frame at once.
Definition: avcodec.h:2835
#define FFMIN(a, b)
Definition: common.h:96
AVPacketSideData * coded_side_data
Additional data associated with the entire coded stream.
Definition: avcodec.h:3237
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:1450
AVFrame * compat_decode_frame
Definition: internal.h:213
void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
Definition: utils.c:1892
int width
picture width / height.
Definition: avcodec.h:1738
static void ff_unlock_avcodec(const AVCodec *codec)
Definition: utils.c:530
AVBufferRef * hw_frames_ctx
A reference to the AVHWFramesContext describing the input (for encoding) or output (decoding) frames...
Definition: avcodec.h:3262
static struct @313 state
#define FF_PROFILE_UNKNOWN
Definition: avcodec.h:2899
int priv_data_size
Definition: avcodec.h:3529
int profile
Definition: avcodec.h:3415
AVPacket * in_pkt
Definition: internal.h:120
AVFormatContext * ctx
Definition: movenc.c:48
#define AV_CODEC_FLAG_PASS1
Use internal 2pass ratecontrol in first pass mode.
Definition: avcodec.h:871
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:2179
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:188
packed YUV 4:2:2, 16bpp, Y0 Cr Y1 Cb
Definition: pixfmt.h:210
#define s(width, name)
Definition: cbs_vp9.c:257
int level
level
Definition: avcodec.h:3018
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:1862
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), big-endian
Definition: pixfmt.h:180
#define CONFIG_GRAY
Definition: config.h:538
const AVProfile * profiles
array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN} ...
Definition: avcodec.h:3508
int n
Definition: avisynth_c.h:760
static int av_bprint_is_complete(const AVBPrint *buf)
Test if the print buffer is complete (not truncated).
Definition: bprint.h:185
unsigned 8 bits, planar
Definition: samplefmt.h:66
int ticks_per_frame
For some codecs, the time base is closer to the field rate than the frame rate.
Definition: avcodec.h:1697
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 AVColorRange color_range
Video only.
Definition: avcodec.h:4043
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:122
DecodeSimpleContext ds
Definition: internal.h:165
enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags, unsigned int fourcc)
Definition: utils.c:467
char * sub_charenc
DTS of the last frame.
Definition: avcodec.h:3152
if(ret< 0)
Definition: vf_mcdeint.c:279
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:3916
#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
const char * avcodec_get_name(enum AVCodecID id)
Get the name of a codec.
Definition: utils.c:1166
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:2824
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:522
int sub_charenc_mode
Subtitles character encoding mode.
Definition: avcodec.h:3160
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
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:368
const AVS_VideoInfo int align
Definition: avisynth_c.h:887
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:1401
int frame_size
Number of samples per channel in an audio frame.
Definition: avcodec.h:2245
#define attribute_align_arg
Definition: internal.h:62
This structure describes the bitrate properties of an encoded bitstream.
Definition: avcodec.h:1128
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:2215
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:1796
Libavcodec external API header.
enum AVMediaType codec_type
Definition: avcodec.h:1573
AVSampleFormat
Audio sample formats.
Definition: samplefmt.h:58
enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
Return the PCM codec associated with a sample format.
Definition: utils.c:1511
enum AVCodecID codec_id
Definition: avcodec.h:1575
int seek_preroll
Number of samples to skip after a discontinuity.
Definition: avcodec.h:3185
int av_opt_set_dict(void *obj, AVDictionary **options)
Set all the options from a given dictionary on an object.
Definition: opt.c:1603
int sample_rate
samples per second
Definition: avcodec.h:2225
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:326
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:1784
planar GBR 4:4:4 30bpp, big-endian
Definition: pixfmt.h:172
main external API structure.
Definition: avcodec.h:1565
int(* receive_frame)(AVCodecContext *avctx, AVFrame *frame)
Decode API with decoupled packet/frame dataflow.
Definition: avcodec.h:3597
AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
Definition: allcodecs.c:890
int skip_samples_multiplier
Definition: internal.h:217
planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
Definition: pixfmt.h:192
uint8_t * data
The data buffer.
Definition: buffer.h:89
int qmin
minimum quantizer
Definition: avcodec.h:2407
void avsubtitle_free(AVSubtitle *sub)
Free all allocated data in the given subtitle struct.
Definition: utils.c:1081
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:1590
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:1964
static void encode(AVCodecContext *ctx, AVFrame *frame, AVPacket *pkt, FILE *output)
Definition: encode_audio.c:95
uint8_t * data
Definition: frame.h:203
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: avcodec.h:775
planar GBR 4:4:4 42bpp, little-endian
Definition: pixfmt.h:257
void * buf
Definition: avisynth_c.h:766
int extradata_size
Definition: avcodec.h:1667
int(* close)(AVCodecContext *)
Definition: avcodec.h:3580
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
Encode extradata length to a buffer.
Definition: utils.c:1763
int nb_coded_side_data
Definition: avcodec.h:3238
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:1753
int(* func)(AVBPrint *dst, const char *in, const char *arg)
Definition: jacosubdec.c:67
Describe the class of an AVClass context structure.
Definition: log.h:67
#define FF_CODEC_PROPERTY_CLOSED_CAPTIONS
Definition: avcodec.h:3229
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:722
static av_const int av_toupper(int c)
Locale-independent conversion of ASCII characters to uppercase.
Definition: avstring.h:231
Y , 16bpp, big-endian.
Definition: pixfmt.h:97
int index
Definition: gxfenc.c:89
void av_buffer_pool_uninit(AVBufferPool **ppool)
Mark the pool as being available for freeing.
Definition: buffer.c:275
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:2193
Rational number (pair of numerator and denominator).
Definition: rational.h:58
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:2186
void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
Wrapper around release_buffer() frame-for multithreaded codecs.
Definition: utils.c:1856
const char * name
short name for the profile
Definition: avcodec.h:3416
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:2058
This struct describes a set or pool of "hardware" frames (i.e.
Definition: hwcontext.h:123
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:3220
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:97
const char * name
Name of the codec described by this descriptor.
Definition: avcodec.h:724
int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Initialize the AVCodecContext to use the given AVCodec.
Definition: utils.c:548
#define snprintf
Definition: snprintf.h:34
int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
Return audio frame duration.
Definition: utils.c:1737
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:44
int seek_preroll
Audio only.
Definition: avcodec.h:4097
This struct describes the properties of a single codec described by an AVCodecID. ...
Definition: avcodec.h:716
int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
Finalize buf into extradata and set its size appropriately.
Definition: utils.c:1903
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: avcodec.h:4012
const AVClass * priv_class
AVClass for the private context.
Definition: avcodec.h:3507
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:309
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:412
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
Definition: rational.h:159
int sample_rate
Audio only.
Definition: avcodec.h:4067
enum AVMediaType type
Definition: avcodec.h:718
uint8_t max_lowres
maximum value for lowres supported by the decoder
Definition: avcodec.h:3506
AVPacket * buffer_pkt
buffers for using new encode/decode API through legacy API
Definition: internal.h:200
int64_t bitrate
Definition: h264_levels.c:131
static int op(uint8_t **dst, const uint8_t *dst_end, GetByteContext *gb, int pixel, int count, int *x, int width, int linesize)
Perform decode operation.
Definition: anm.c:78
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:1558
const OptionDef options[]
Definition: ffmpeg_opt.c:3364
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:84
int(* decode)(AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt)
Definition: avcodec.h:3579
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:365
#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(* init)(AVCodecContext *)
Definition: avcodec.h:3564
static double c[64]
int profile
Codec-specific bitstream restrictions that the stream conforms to.
Definition: avcodec.h:4017
const char * av_color_transfer_name(enum AVColorTransferCharacteristic transfer)
Definition: pixdesc.c:2891
void * hwaccel_priv_data
hwaccel-specific private data
Definition: internal.h:190
void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
Same behaviour av_fast_padded_malloc except that buffer will always be 0-initialized after call...
Definition: utils.c:82
int(* encode_sub)(AVCodecContext *, uint8_t *buf, int buf_size, const struct AVSubtitle *sub)
Definition: avcodec.h:3565
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
AVProfile.
Definition: avcodec.h:3414
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:1874
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:2815
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:1866
packed RGB 3:3:2, 8bpp, (msb)2R 3G 3B(lsb)
Definition: pixfmt.h:86
static const uint64_t c2
Definition: murmur3.c:50
#define AV_PIX_FMT_RGB555
Definition: pixfmt.h:375
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: avcodec.h:3607
unsigned properties
Properties of the stream that gets decoded.
Definition: avcodec.h:3227
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:454
int av_image_check_size2(unsigned int w, unsigned int h, int64_t max_pixels, enum AVPixelFormat pix_fmt, int log_offset, void *log_ctx)
Check if the given dimension of an image is valid, meaning that all bytes of a plane of an image with...
Definition: imgutils.c:253
unsigned bps
Definition: movenc.c:1497
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition: pixfmt.h:185
#define FFMPEG_CONFIGURATION
Definition: config.h:4
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
Definition: avcodec.h:790
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
Definition: utils.c:1206
#define AV_CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:875
static int lowres
Definition: ffplay.c:335
void * priv_data
Definition: avcodec.h:1592
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:1186
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
#define av_free(p)
uint8_t * dump_separator
dump format separator.
Definition: avcodec.h:3212
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:85
int(* encode2)(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
Encode data to an AVPacket.
Definition: avcodec.h:3577
#define TAG_PRINT(x)
#define FFMPEG_VERSION
Definition: ffversion.h:4
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:253
as in Berlin toast format
Definition: avcodec.h:582
int len
int channels
number of audio channels
Definition: avcodec.h:2226
const int * supported_samplerates
array of supported audio samplerates, or NULL if unknown, array is terminated by 0 ...
Definition: avcodec.h:3503
struct AVCodecInternal * internal
Private context used for internal data.
Definition: avcodec.h:1600
unsigned avcodec_version(void)
Return the LIBAVCODEC_VERSION_INT constant.
Definition: utils.c:1429
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:51
char * ass
0 terminated ASS/SSA compatible event line.
Definition: avcodec.h:3928
This side data corresponds to the AVCPBProperties struct.
Definition: avcodec.h:1289
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:549
signed 64 bits, planar
Definition: samplefmt.h:72
int bits_per_coded_sample
The number of bits per sample in the codedwords.
Definition: avcodec.h:3999
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: avcodec.h:3971
static const struct twinvq_data tab
unsigned int byte_buffer_size
Definition: internal.h:178
#define HAVE_THREADS
Definition: config.h:273
int channels
Audio only.
Definition: avcodec.h:4063
void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
Wait for earlier decoding threads to finish reference pictures.
Definition: utils.c:1870
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
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:3145
int frame_number
Frame counter, set by libavcodec.
Definition: avcodec.h:2256
int height
Definition: frame.h:353
void ff_frame_thread_encoder_free(AVCodecContext *avctx)
#define av_freep(p)
void INT64 INT64 count
Definition: avisynth_c.h:766
int64_t pts_correction_num_faulty_pts
Current statistics for PTS correction.
Definition: avcodec.h:3142
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:2222
signed 16 bits, planar
Definition: samplefmt.h:67
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:541
int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
Definition: utils.c:1821
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: avcodec.h:3504
AVMatrixEncoding
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
Definition: utils.c:1850
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
Definition: avcodec.h:3961
int ff_alloc_entries(AVCodecContext *avctx, int count)
Definition: utils.c:1879
int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len, void **data, size_t *sei_size)
Check AVFrame for A53 side data and allocate and fill SEI message with A53 info.
Definition: utils.c:2172
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:2438
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:1926
void ff_reset_entries(AVCodecContext *avctx)
Definition: utils.c:1884
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:342
#define MKTAG(a, b, c, d)
Definition: common.h:366
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:3314
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:221
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
uint8_t * byte_buffer
temporary buffer used for encoders to store their bitstream
Definition: internal.h:177
const char * avcodec_profile_name(enum AVCodecID codec_id, int profile)
Return a name for the specified profile, if available.
Definition: utils.c:1414
static int ff_fast_malloc(void *ptr, unsigned int *size, size_t min_size, int zero_realloc)
Definition: mem_internal.h:27
int delay
Codec delay.
Definition: avcodec.h:1721
int nb_samples
number of audio samples (per channel) described by this frame
Definition: frame.h:361
#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:2628
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:3112
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:246
#define FFMAX3(a, b, c)
Definition: common.h:95
planar GBR 4:4:4 30bpp, little-endian
Definition: pixfmt.h:173
int avcodec_default_execute(AVCodecContext *c, int(*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
Definition: utils.c:441
#define AV_WL32(p, v)
Definition: intreadwrite.h:426
int64_t rc_max_rate
maximum bitrate
Definition: avcodec.h:2443
void * av_mallocz_array(size_t nmemb, size_t size)
Allocate a memory block for an array with av_mallocz().
Definition: mem.c:191
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), 12b alpha, big-endian ...
Definition: pixfmt.h:343
uint8_t * subtitle_header
Header containing style information for text subtitles.
Definition: avcodec.h:3050
static uint8_t tmp[11]
Definition: aes_ctr.c:26
planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:160