FFmpeg
utils.c
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1 /*
2  * utils for libavcodec
3  * Copyright (c) 2001 Fabrice Bellard
4  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 /**
24  * @file
25  * utils.
26  */
27 
28 #include "config.h"
29 #include "libavutil/attributes.h"
30 #include "libavutil/avassert.h"
31 #include "libavutil/avstring.h"
32 #include "libavutil/bprint.h"
34 #include "libavutil/crc.h"
35 #include "libavutil/frame.h"
36 #include "libavutil/hwcontext.h"
37 #include "libavutil/internal.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/mem_internal.h"
40 #include "libavutil/pixdesc.h"
41 #include "libavutil/imgutils.h"
42 #include "libavutil/samplefmt.h"
43 #include "libavutil/dict.h"
44 #include "libavutil/thread.h"
45 #include "avcodec.h"
46 #include "decode.h"
47 #include "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, x;
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  for (y = 0; y < height; y++) {
425  if (desc->comp[0].depth >= 9) {
426  for (x = 0; x<bytes; x++)
427  ((uint16_t*)dst)[x] = c[p];
428  }else
429  memset(dst, c[p], bytes);
430  dst += frame->linesize[p];
431  }
432  }
433 }
434 
435 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
436 {
437  int i;
438 
439  for (i = 0; i < count; i++) {
440  int r = func(c, (char *)arg + i * size);
441  if (ret)
442  ret[i] = r;
443  }
444  emms_c();
445  return 0;
446 }
447 
448 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
449 {
450  int i;
451 
452  for (i = 0; i < count; i++) {
453  int r = func(c, arg, i, 0);
454  if (ret)
455  ret[i] = r;
456  }
457  emms_c();
458  return 0;
459 }
460 
462  unsigned int fourcc)
463 {
464  while (tags->pix_fmt >= 0) {
465  if (tags->fourcc == fourcc)
466  return tags->pix_fmt;
467  tags++;
468  }
469  return AV_PIX_FMT_NONE;
470 }
471 
472 #if FF_API_CODEC_GET_SET
473 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
474 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
476 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
477 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
478 
480 {
481  return codec->properties;
482 }
483 
485 {
486  return codec->max_lowres;
487 }
488 #endif
489 
492 }
493 
495 {
496  int64_t bit_rate;
497  int bits_per_sample;
498 
499  switch (ctx->codec_type) {
500  case AVMEDIA_TYPE_VIDEO:
501  case AVMEDIA_TYPE_DATA:
504  bit_rate = ctx->bit_rate;
505  break;
506  case AVMEDIA_TYPE_AUDIO:
507  bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
508  bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
509  break;
510  default:
511  bit_rate = 0;
512  break;
513  }
514  return bit_rate;
515 }
516 
517 
518 static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
519 {
520  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
522 }
523 
524 static void ff_unlock_avcodec(const AVCodec *codec)
525 {
526  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
528 }
529 
530 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
531 {
532  int ret = 0;
533 
534  ff_unlock_avcodec(codec);
535 
536  ret = avcodec_open2(avctx, codec, options);
537 
538  ff_lock_avcodec(avctx, codec);
539  return ret;
540 }
541 
542 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
543 {
544  int ret = 0;
545  int codec_init_ok = 0;
546  AVDictionary *tmp = NULL;
547  const AVPixFmtDescriptor *pixdesc;
548 
549  if (avcodec_is_open(avctx))
550  return 0;
551 
552  if ((!codec && !avctx->codec)) {
553  av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
554  return AVERROR(EINVAL);
555  }
556  if ((codec && avctx->codec && codec != avctx->codec)) {
557  av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
558  "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
559  return AVERROR(EINVAL);
560  }
561  if (!codec)
562  codec = avctx->codec;
563 
564  if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
565  return AVERROR(EINVAL);
566 
567  if (options)
568  av_dict_copy(&tmp, *options, 0);
569 
570  ff_lock_avcodec(avctx, codec);
571 
572  avctx->internal = av_mallocz(sizeof(*avctx->internal));
573  if (!avctx->internal) {
574  ret = AVERROR(ENOMEM);
575  goto end;
576  }
577 
578  avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
579  if (!avctx->internal->pool) {
580  ret = AVERROR(ENOMEM);
581  goto free_and_end;
582  }
583 
584  avctx->internal->to_free = av_frame_alloc();
585  if (!avctx->internal->to_free) {
586  ret = AVERROR(ENOMEM);
587  goto free_and_end;
588  }
589 
591  if (!avctx->internal->compat_decode_frame) {
592  ret = AVERROR(ENOMEM);
593  goto free_and_end;
594  }
595 
597  if (!avctx->internal->buffer_frame) {
598  ret = AVERROR(ENOMEM);
599  goto free_and_end;
600  }
601 
602  avctx->internal->buffer_pkt = av_packet_alloc();
603  if (!avctx->internal->buffer_pkt) {
604  ret = AVERROR(ENOMEM);
605  goto free_and_end;
606  }
607 
608  avctx->internal->ds.in_pkt = av_packet_alloc();
609  if (!avctx->internal->ds.in_pkt) {
610  ret = AVERROR(ENOMEM);
611  goto free_and_end;
612  }
613 
615  if (!avctx->internal->last_pkt_props) {
616  ret = AVERROR(ENOMEM);
617  goto free_and_end;
618  }
619 
620  avctx->internal->skip_samples_multiplier = 1;
621 
622  if (codec->priv_data_size > 0) {
623  if (!avctx->priv_data) {
624  avctx->priv_data = av_mallocz(codec->priv_data_size);
625  if (!avctx->priv_data) {
626  ret = AVERROR(ENOMEM);
627  goto end;
628  }
629  if (codec->priv_class) {
630  *(const AVClass **)avctx->priv_data = codec->priv_class;
632  }
633  }
634  if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
635  goto free_and_end;
636  } else {
637  avctx->priv_data = NULL;
638  }
639  if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
640  goto free_and_end;
641 
642  if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
643  av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
644  ret = AVERROR(EINVAL);
645  goto free_and_end;
646  }
647 
648  // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
649  if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
650  (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
651  if (avctx->coded_width && avctx->coded_height)
652  ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
653  else if (avctx->width && avctx->height)
654  ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
655  if (ret < 0)
656  goto free_and_end;
657  }
658 
659  if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
660  && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
661  || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
662  av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
663  ff_set_dimensions(avctx, 0, 0);
664  }
665 
666  if (avctx->width > 0 && avctx->height > 0) {
667  if (av_image_check_sar(avctx->width, avctx->height,
668  avctx->sample_aspect_ratio) < 0) {
669  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
670  avctx->sample_aspect_ratio.num,
671  avctx->sample_aspect_ratio.den);
672  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
673  }
674  }
675 
676  /* if the decoder init function was already called previously,
677  * free the already allocated subtitle_header before overwriting it */
678  if (av_codec_is_decoder(codec))
679  av_freep(&avctx->subtitle_header);
680 
681  if (avctx->channels > FF_SANE_NB_CHANNELS) {
682  av_log(avctx, AV_LOG_ERROR, "Too many channels: %d\n", avctx->channels);
683  ret = AVERROR(EINVAL);
684  goto free_and_end;
685  }
686 
687  avctx->codec = codec;
688  if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
689  avctx->codec_id == AV_CODEC_ID_NONE) {
690  avctx->codec_type = codec->type;
691  avctx->codec_id = codec->id;
692  }
693  if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
694  && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
695  av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
696  ret = AVERROR(EINVAL);
697  goto free_and_end;
698  }
699  avctx->frame_number = 0;
701 
702  if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
704  const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
705  AVCodec *codec2;
706  av_log(avctx, AV_LOG_ERROR,
707  "The %s '%s' is experimental but experimental codecs are not enabled, "
708  "add '-strict %d' if you want to use it.\n",
709  codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
710  codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
711  if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
712  av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
713  codec_string, codec2->name);
714  ret = AVERROR_EXPERIMENTAL;
715  goto free_and_end;
716  }
717 
718  if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
719  (!avctx->time_base.num || !avctx->time_base.den)) {
720  avctx->time_base.num = 1;
721  avctx->time_base.den = avctx->sample_rate;
722  }
723 
724  if (!HAVE_THREADS)
725  av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
726 
727  if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
728  ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
729  ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
730  ff_lock_avcodec(avctx, codec);
731  if (ret < 0)
732  goto free_and_end;
733  }
734 
735  if (av_codec_is_decoder(avctx->codec)) {
736  ret = ff_decode_bsfs_init(avctx);
737  if (ret < 0)
738  goto free_and_end;
739  }
740 
741  if (HAVE_THREADS
743  ret = ff_thread_init(avctx);
744  if (ret < 0) {
745  goto free_and_end;
746  }
747  }
748  if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
749  avctx->thread_count = 1;
750 
751  if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
752  av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
753  avctx->codec->max_lowres);
754  avctx->lowres = avctx->codec->max_lowres;
755  }
756 
757  if (av_codec_is_encoder(avctx->codec)) {
758  int i;
759 #if FF_API_CODED_FRAME
761  avctx->coded_frame = av_frame_alloc();
762  if (!avctx->coded_frame) {
763  ret = AVERROR(ENOMEM);
764  goto free_and_end;
765  }
767 #endif
768 
769  if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
770  av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
771  ret = AVERROR(EINVAL);
772  goto free_and_end;
773  }
774 
775  if (avctx->codec->sample_fmts) {
776  for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
777  if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
778  break;
779  if (avctx->channels == 1 &&
782  avctx->sample_fmt = avctx->codec->sample_fmts[i];
783  break;
784  }
785  }
786  if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
787  char buf[128];
788  snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
789  av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
790  (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
791  ret = AVERROR(EINVAL);
792  goto free_and_end;
793  }
794  }
795  if (avctx->codec->pix_fmts) {
796  for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
797  if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
798  break;
799  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
800  && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
802  char buf[128];
803  snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
804  av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
805  (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
806  ret = AVERROR(EINVAL);
807  goto free_and_end;
808  }
809  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
810  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
811  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
812  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
813  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
814  avctx->color_range = AVCOL_RANGE_JPEG;
815  }
816  if (avctx->codec->supported_samplerates) {
817  for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
818  if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
819  break;
820  if (avctx->codec->supported_samplerates[i] == 0) {
821  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
822  avctx->sample_rate);
823  ret = AVERROR(EINVAL);
824  goto free_and_end;
825  }
826  }
827  if (avctx->sample_rate < 0) {
828  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
829  avctx->sample_rate);
830  ret = AVERROR(EINVAL);
831  goto free_and_end;
832  }
833  if (avctx->codec->channel_layouts) {
834  if (!avctx->channel_layout) {
835  av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
836  } else {
837  for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
838  if (avctx->channel_layout == avctx->codec->channel_layouts[i])
839  break;
840  if (avctx->codec->channel_layouts[i] == 0) {
841  char buf[512];
842  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
843  av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
844  ret = AVERROR(EINVAL);
845  goto free_and_end;
846  }
847  }
848  }
849  if (avctx->channel_layout && avctx->channels) {
851  if (channels != avctx->channels) {
852  char buf[512];
853  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
854  av_log(avctx, AV_LOG_ERROR,
855  "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
856  buf, channels, avctx->channels);
857  ret = AVERROR(EINVAL);
858  goto free_and_end;
859  }
860  } else if (avctx->channel_layout) {
862  }
863  if (avctx->channels < 0) {
864  av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
865  avctx->channels);
866  ret = AVERROR(EINVAL);
867  goto free_and_end;
868  }
869  if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
870  pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
871  if ( avctx->bits_per_raw_sample < 0
872  || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
873  av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
874  avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
875  avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
876  }
877  if (avctx->width <= 0 || avctx->height <= 0) {
878  av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
879  ret = AVERROR(EINVAL);
880  goto free_and_end;
881  }
882  }
883  if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
884  && avctx->bit_rate>0 && avctx->bit_rate<1000) {
885  av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
886  }
887 
888  if (!avctx->rc_initial_buffer_occupancy)
889  avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
890 
891  if (avctx->ticks_per_frame && avctx->time_base.num &&
892  avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
893  av_log(avctx, AV_LOG_ERROR,
894  "ticks_per_frame %d too large for the timebase %d/%d.",
895  avctx->ticks_per_frame,
896  avctx->time_base.num,
897  avctx->time_base.den);
898  goto free_and_end;
899  }
900 
901  if (avctx->hw_frames_ctx) {
902  AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
903  if (frames_ctx->format != avctx->pix_fmt) {
904  av_log(avctx, AV_LOG_ERROR,
905  "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
906  ret = AVERROR(EINVAL);
907  goto free_and_end;
908  }
909  if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
910  avctx->sw_pix_fmt != frames_ctx->sw_format) {
911  av_log(avctx, AV_LOG_ERROR,
912  "Mismatching AVCodecContext.sw_pix_fmt (%s) "
913  "and AVHWFramesContext.sw_format (%s)\n",
915  av_get_pix_fmt_name(frames_ctx->sw_format));
916  ret = AVERROR(EINVAL);
917  goto free_and_end;
918  }
919  avctx->sw_pix_fmt = frames_ctx->sw_format;
920  }
921  }
922 
925  avctx->pts_correction_last_pts =
926  avctx->pts_correction_last_dts = INT64_MIN;
927 
928  if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
930  av_log(avctx, AV_LOG_WARNING,
931  "gray decoding requested but not enabled at configuration time\n");
932 
933  if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
934  || avctx->internal->frame_thread_encoder)) {
935  ret = avctx->codec->init(avctx);
936  if (ret < 0) {
937  goto free_and_end;
938  }
939  codec_init_ok = 1;
940  }
941 
942  ret=0;
943 
944  if (av_codec_is_decoder(avctx->codec)) {
945  if (!avctx->bit_rate)
946  avctx->bit_rate = get_bit_rate(avctx);
947  /* validate channel layout from the decoder */
948  if (avctx->channel_layout) {
950  if (!avctx->channels)
951  avctx->channels = channels;
952  else if (channels != avctx->channels) {
953  char buf[512];
954  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
955  av_log(avctx, AV_LOG_WARNING,
956  "Channel layout '%s' with %d channels does not match specified number of channels %d: "
957  "ignoring specified channel layout\n",
958  buf, channels, avctx->channels);
959  avctx->channel_layout = 0;
960  }
961  }
962  if (avctx->channels && avctx->channels < 0 ||
963  avctx->channels > FF_SANE_NB_CHANNELS) {
964  ret = AVERROR(EINVAL);
965  goto free_and_end;
966  }
967  if (avctx->bits_per_coded_sample < 0) {
968  ret = AVERROR(EINVAL);
969  goto free_and_end;
970  }
971  if (avctx->sub_charenc) {
972  if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
973  av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
974  "supported with subtitles codecs\n");
975  ret = AVERROR(EINVAL);
976  goto free_and_end;
977  } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
978  av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
979  "subtitles character encoding will be ignored\n",
980  avctx->codec_descriptor->name);
982  } else {
983  /* input character encoding is set for a text based subtitle
984  * codec at this point */
987 
989 #if CONFIG_ICONV
990  iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
991  if (cd == (iconv_t)-1) {
992  ret = AVERROR(errno);
993  av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
994  "with input character encoding \"%s\"\n", avctx->sub_charenc);
995  goto free_and_end;
996  }
997  iconv_close(cd);
998 #else
999  av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1000  "conversion needs a libavcodec built with iconv support "
1001  "for this codec\n");
1002  ret = AVERROR(ENOSYS);
1003  goto free_and_end;
1004 #endif
1005  }
1006  }
1007  }
1008 
1009 #if FF_API_AVCTX_TIMEBASE
1010  if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1011  avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1012 #endif
1013  }
1014  if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1015  av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1016  }
1017 
1018 end:
1019  ff_unlock_avcodec(codec);
1020  if (options) {
1021  av_dict_free(options);
1022  *options = tmp;
1023  }
1024 
1025  return ret;
1026 free_and_end:
1027  if (avctx->codec && avctx->codec->close &&
1028  (codec_init_ok ||
1030  avctx->codec->close(avctx);
1031 
1032  if (codec->priv_class && codec->priv_data_size)
1033  av_opt_free(avctx->priv_data);
1034  av_opt_free(avctx);
1035 
1036 #if FF_API_CODED_FRAME
1038  av_frame_free(&avctx->coded_frame);
1040 #endif
1041 
1042  av_dict_free(&tmp);
1043  av_freep(&avctx->priv_data);
1044  av_freep(&avctx->subtitle_header);
1045  if (avctx->internal) {
1046  av_frame_free(&avctx->internal->to_free);
1051 
1052  av_packet_free(&avctx->internal->ds.in_pkt);
1053  ff_decode_bsfs_uninit(avctx);
1054 
1055  av_freep(&avctx->internal->pool);
1056  }
1057  av_freep(&avctx->internal);
1058  avctx->codec = NULL;
1059  goto end;
1060 }
1061 
1063 {
1064  int i;
1065 
1066  for (i = 0; i < sub->num_rects; i++) {
1067  av_freep(&sub->rects[i]->data[0]);
1068  av_freep(&sub->rects[i]->data[1]);
1069  av_freep(&sub->rects[i]->data[2]);
1070  av_freep(&sub->rects[i]->data[3]);
1071  av_freep(&sub->rects[i]->text);
1072  av_freep(&sub->rects[i]->ass);
1073  av_freep(&sub->rects[i]);
1074  }
1075 
1076  av_freep(&sub->rects);
1077 
1078  memset(sub, 0, sizeof(*sub));
1079 }
1080 
1082 {
1083  int i;
1084 
1085  if (!avctx)
1086  return 0;
1087 
1088  if (avcodec_is_open(avctx)) {
1089  FramePool *pool = avctx->internal->pool;
1090  if (CONFIG_FRAME_THREAD_ENCODER &&
1091  avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1093  }
1094  if (HAVE_THREADS && avctx->internal->thread_ctx)
1095  ff_thread_free(avctx);
1096  if (avctx->codec && avctx->codec->close)
1097  avctx->codec->close(avctx);
1098  avctx->internal->byte_buffer_size = 0;
1099  av_freep(&avctx->internal->byte_buffer);
1100  av_frame_free(&avctx->internal->to_free);
1105 
1106  av_packet_free(&avctx->internal->ds.in_pkt);
1107 
1108  for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
1109  av_buffer_pool_uninit(&pool->pools[i]);
1110  av_freep(&avctx->internal->pool);
1111 
1112  if (avctx->hwaccel && avctx->hwaccel->uninit)
1113  avctx->hwaccel->uninit(avctx);
1115 
1116  ff_decode_bsfs_uninit(avctx);
1117 
1118  av_freep(&avctx->internal);
1119  }
1120 
1121  for (i = 0; i < avctx->nb_coded_side_data; i++)
1122  av_freep(&avctx->coded_side_data[i].data);
1123  av_freep(&avctx->coded_side_data);
1124  avctx->nb_coded_side_data = 0;
1125 
1126  av_buffer_unref(&avctx->hw_frames_ctx);
1127  av_buffer_unref(&avctx->hw_device_ctx);
1128 
1129  if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1130  av_opt_free(avctx->priv_data);
1131  av_opt_free(avctx);
1132  av_freep(&avctx->priv_data);
1133  if (av_codec_is_encoder(avctx->codec)) {
1134  av_freep(&avctx->extradata);
1135 #if FF_API_CODED_FRAME
1137  av_frame_free(&avctx->coded_frame);
1139 #endif
1140  }
1141  avctx->codec = NULL;
1142  avctx->active_thread_type = 0;
1143 
1144  return 0;
1145 }
1146 
1147 const char *avcodec_get_name(enum AVCodecID id)
1148 {
1149  const AVCodecDescriptor *cd;
1150  AVCodec *codec;
1151 
1152  if (id == AV_CODEC_ID_NONE)
1153  return "none";
1154  cd = avcodec_descriptor_get(id);
1155  if (cd)
1156  return cd->name;
1157  av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1158  codec = avcodec_find_decoder(id);
1159  if (codec)
1160  return codec->name;
1161  codec = avcodec_find_encoder(id);
1162  if (codec)
1163  return codec->name;
1164  return "unknown_codec";
1165 }
1166 
1167 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1168 {
1169  int i, len, ret = 0;
1170 
1171 #define TAG_PRINT(x) \
1172  (((x) >= '0' && (x) <= '9') || \
1173  ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1174  ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
1175 
1176  for (i = 0; i < 4; i++) {
1177  len = snprintf(buf, buf_size,
1178  TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1179  buf += len;
1180  buf_size = buf_size > len ? buf_size - len : 0;
1181  ret += len;
1182  codec_tag >>= 8;
1183  }
1184  return ret;
1185 }
1186 
1187 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1188 {
1189  const char *codec_type;
1190  const char *codec_name;
1191  const char *profile = NULL;
1192  int64_t bitrate;
1193  int new_line = 0;
1194  AVRational display_aspect_ratio;
1195  const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1196 
1197  if (!buf || buf_size <= 0)
1198  return;
1199  codec_type = av_get_media_type_string(enc->codec_type);
1200  codec_name = avcodec_get_name(enc->codec_id);
1201  profile = avcodec_profile_name(enc->codec_id, enc->profile);
1202 
1203  snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1204  codec_name);
1205  buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1206 
1207  if (enc->codec && strcmp(enc->codec->name, codec_name))
1208  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1209 
1210  if (profile)
1211  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1212  if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1214  && enc->refs)
1215  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1216  ", %d reference frame%s",
1217  enc->refs, enc->refs > 1 ? "s" : "");
1218 
1219  if (enc->codec_tag)
1220  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1221  av_fourcc2str(enc->codec_tag), enc->codec_tag);
1222 
1223  switch (enc->codec_type) {
1224  case AVMEDIA_TYPE_VIDEO:
1225  {
1226  char detail[256] = "(";
1227 
1228  av_strlcat(buf, separator, buf_size);
1229 
1230  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1231  "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1233  if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1235  av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1237  av_strlcatf(detail, sizeof(detail), "%s, ",
1239 
1240  if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1242  enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1243  if (enc->colorspace != (int)enc->color_primaries ||
1244  enc->colorspace != (int)enc->color_trc) {
1245  new_line = 1;
1246  av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1250  } else
1251  av_strlcatf(detail, sizeof(detail), "%s, ",
1253  }
1254 
1255  if (enc->field_order != AV_FIELD_UNKNOWN) {
1256  const char *field_order = "progressive";
1257  if (enc->field_order == AV_FIELD_TT)
1258  field_order = "top first";
1259  else if (enc->field_order == AV_FIELD_BB)
1260  field_order = "bottom first";
1261  else if (enc->field_order == AV_FIELD_TB)
1262  field_order = "top coded first (swapped)";
1263  else if (enc->field_order == AV_FIELD_BT)
1264  field_order = "bottom coded first (swapped)";
1265 
1266  av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1267  }
1268 
1269  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1271  av_strlcatf(detail, sizeof(detail), "%s, ",
1273 
1274  if (strlen(detail) > 1) {
1275  detail[strlen(detail) - 2] = 0;
1276  av_strlcatf(buf, buf_size, "%s)", detail);
1277  }
1278  }
1279 
1280  if (enc->width) {
1281  av_strlcat(buf, new_line ? separator : ", ", buf_size);
1282 
1283  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1284  "%dx%d",
1285  enc->width, enc->height);
1286 
1287  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1288  (enc->width != enc->coded_width ||
1289  enc->height != enc->coded_height))
1290  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1291  " (%dx%d)", enc->coded_width, enc->coded_height);
1292 
1293  if (enc->sample_aspect_ratio.num) {
1294  av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1295  enc->width * (int64_t)enc->sample_aspect_ratio.num,
1296  enc->height * (int64_t)enc->sample_aspect_ratio.den,
1297  1024 * 1024);
1298  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1299  " [SAR %d:%d DAR %d:%d]",
1301  display_aspect_ratio.num, display_aspect_ratio.den);
1302  }
1303  if (av_log_get_level() >= AV_LOG_DEBUG) {
1304  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1305  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1306  ", %d/%d",
1307  enc->time_base.num / g, enc->time_base.den / g);
1308  }
1309  }
1310  if (encode) {
1311  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1312  ", q=%d-%d", enc->qmin, enc->qmax);
1313  } else {
1315  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1316  ", Closed Captions");
1318  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1319  ", lossless");
1320  }
1321  break;
1322  case AVMEDIA_TYPE_AUDIO:
1323  av_strlcat(buf, separator, buf_size);
1324 
1325  if (enc->sample_rate) {
1326  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1327  "%d Hz, ", enc->sample_rate);
1328  }
1329  av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1330  if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1331  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1332  ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1333  }
1334  if ( enc->bits_per_raw_sample > 0
1336  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1337  " (%d bit)", enc->bits_per_raw_sample);
1338  if (av_log_get_level() >= AV_LOG_VERBOSE) {
1339  if (enc->initial_padding)
1340  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1341  ", delay %d", enc->initial_padding);
1342  if (enc->trailing_padding)
1343  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1344  ", padding %d", enc->trailing_padding);
1345  }
1346  break;
1347  case AVMEDIA_TYPE_DATA:
1348  if (av_log_get_level() >= AV_LOG_DEBUG) {
1349  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1350  if (g)
1351  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1352  ", %d/%d",
1353  enc->time_base.num / g, enc->time_base.den / g);
1354  }
1355  break;
1356  case AVMEDIA_TYPE_SUBTITLE:
1357  if (enc->width)
1358  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1359  ", %dx%d", enc->width, enc->height);
1360  break;
1361  default:
1362  return;
1363  }
1364  if (encode) {
1365  if (enc->flags & AV_CODEC_FLAG_PASS1)
1366  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1367  ", pass 1");
1368  if (enc->flags & AV_CODEC_FLAG_PASS2)
1369  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1370  ", pass 2");
1371  }
1372  bitrate = get_bit_rate(enc);
1373  if (bitrate != 0) {
1374  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1375  ", %"PRId64" kb/s", bitrate / 1000);
1376  } else if (enc->rc_max_rate > 0) {
1377  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1378  ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1379  }
1380 }
1381 
1382 const char *av_get_profile_name(const AVCodec *codec, int profile)
1383 {
1384  const AVProfile *p;
1385  if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1386  return NULL;
1387 
1388  for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1389  if (p->profile == profile)
1390  return p->name;
1391 
1392  return NULL;
1393 }
1394 
1396 {
1397  const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1398  const AVProfile *p;
1399 
1400  if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1401  return NULL;
1402 
1403  for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1404  if (p->profile == profile)
1405  return p->name;
1406 
1407  return NULL;
1408 }
1409 
1410 unsigned avcodec_version(void)
1411 {
1414  av_assert0(AV_CODEC_ID_SRT==94216);
1416 
1417  return LIBAVCODEC_VERSION_INT;
1418 }
1419 
1420 const char *avcodec_configuration(void)
1421 {
1422  return FFMPEG_CONFIGURATION;
1423 }
1424 
1425 const char *avcodec_license(void)
1426 {
1427 #define LICENSE_PREFIX "libavcodec license: "
1428  return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
1429 }
1430 
1432 {
1433  switch (codec_id) {
1434  case AV_CODEC_ID_8SVX_EXP:
1435  case AV_CODEC_ID_8SVX_FIB:
1436  case AV_CODEC_ID_ADPCM_CT:
1444  return 4;
1445  case AV_CODEC_ID_DSD_LSBF:
1446  case AV_CODEC_ID_DSD_MSBF:
1449  case AV_CODEC_ID_PCM_ALAW:
1450  case AV_CODEC_ID_PCM_MULAW:
1451  case AV_CODEC_ID_PCM_VIDC:
1452  case AV_CODEC_ID_PCM_S8:
1454  case AV_CODEC_ID_PCM_U8:
1455  case AV_CODEC_ID_PCM_ZORK:
1456  case AV_CODEC_ID_SDX2_DPCM:
1457  return 8;
1458  case AV_CODEC_ID_PCM_S16BE:
1460  case AV_CODEC_ID_PCM_S16LE:
1462  case AV_CODEC_ID_PCM_U16BE:
1463  case AV_CODEC_ID_PCM_U16LE:
1464  return 16;
1466  case AV_CODEC_ID_PCM_S24BE:
1467  case AV_CODEC_ID_PCM_S24LE:
1469  case AV_CODEC_ID_PCM_U24BE:
1470  case AV_CODEC_ID_PCM_U24LE:
1471  return 24;
1472  case AV_CODEC_ID_PCM_S32BE:
1473  case AV_CODEC_ID_PCM_S32LE:
1475  case AV_CODEC_ID_PCM_U32BE:
1476  case AV_CODEC_ID_PCM_U32LE:
1477  case AV_CODEC_ID_PCM_F32BE:
1478  case AV_CODEC_ID_PCM_F32LE:
1479  case AV_CODEC_ID_PCM_F24LE:
1480  case AV_CODEC_ID_PCM_F16LE:
1481  return 32;
1482  case AV_CODEC_ID_PCM_F64BE:
1483  case AV_CODEC_ID_PCM_F64LE:
1484  case AV_CODEC_ID_PCM_S64BE:
1485  case AV_CODEC_ID_PCM_S64LE:
1486  return 64;
1487  default:
1488  return 0;
1489  }
1490 }
1491 
1493 {
1494  static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
1500  [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1501  [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1502  [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1504  [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1505  [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1506  };
1507  if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
1508  return AV_CODEC_ID_NONE;
1509  if (be < 0 || be > 1)
1510  be = AV_NE(1, 0);
1511  return map[fmt][be];
1512 }
1513 
1515 {
1516  switch (codec_id) {
1518  return 2;
1520  return 3;
1524  case AV_CODEC_ID_ADPCM_SWF:
1525  case AV_CODEC_ID_ADPCM_MS:
1526  return 4;
1527  default:
1528  return av_get_exact_bits_per_sample(codec_id);
1529  }
1530 }
1531 
1532 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1533  uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1534  uint8_t * extradata, int frame_size, int frame_bytes)
1535 {
1537  int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1538 
1539  /* codecs with an exact constant bits per sample */
1540  if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1541  return (frame_bytes * 8LL) / (bps * ch);
1542  bps = bits_per_coded_sample;
1543 
1544  /* codecs with a fixed packet duration */
1545  switch (id) {
1546  case AV_CODEC_ID_ADPCM_ADX: return 32;
1547  case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1548  case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1549  case AV_CODEC_ID_AMR_NB:
1550  case AV_CODEC_ID_EVRC:
1551  case AV_CODEC_ID_GSM:
1552  case AV_CODEC_ID_QCELP:
1553  case AV_CODEC_ID_RA_288: return 160;
1554  case AV_CODEC_ID_AMR_WB:
1555  case AV_CODEC_ID_GSM_MS: return 320;
1556  case AV_CODEC_ID_MP1: return 384;
1557  case AV_CODEC_ID_ATRAC1: return 512;
1558  case AV_CODEC_ID_ATRAC9:
1559  case AV_CODEC_ID_ATRAC3: return 1024 * framecount;
1560  case AV_CODEC_ID_ATRAC3P: return 2048;
1561  case AV_CODEC_ID_MP2:
1562  case AV_CODEC_ID_MUSEPACK7: return 1152;
1563  case AV_CODEC_ID_AC3: return 1536;
1564  }
1565 
1566  if (sr > 0) {
1567  /* calc from sample rate */
1568  if (id == AV_CODEC_ID_TTA)
1569  return 256 * sr / 245;
1570  else if (id == AV_CODEC_ID_DST)
1571  return 588 * sr / 44100;
1572 
1573  if (ch > 0) {
1574  /* calc from sample rate and channels */
1575  if (id == AV_CODEC_ID_BINKAUDIO_DCT)
1576  return (480 << (sr / 22050)) / ch;
1577  }
1578 
1579  if (id == AV_CODEC_ID_MP3)
1580  return sr <= 24000 ? 576 : 1152;
1581  }
1582 
1583  if (ba > 0) {
1584  /* calc from block_align */
1585  if (id == AV_CODEC_ID_SIPR) {
1586  switch (ba) {
1587  case 20: return 160;
1588  case 19: return 144;
1589  case 29: return 288;
1590  case 37: return 480;
1591  }
1592  } else if (id == AV_CODEC_ID_ILBC) {
1593  switch (ba) {
1594  case 38: return 160;
1595  case 50: return 240;
1596  }
1597  }
1598  }
1599 
1600  if (frame_bytes > 0) {
1601  /* calc from frame_bytes only */
1602  if (id == AV_CODEC_ID_TRUESPEECH)
1603  return 240 * (frame_bytes / 32);
1604  if (id == AV_CODEC_ID_NELLYMOSER)
1605  return 256 * (frame_bytes / 64);
1606  if (id == AV_CODEC_ID_RA_144)
1607  return 160 * (frame_bytes / 20);
1608 
1609  if (bps > 0) {
1610  /* calc from frame_bytes and bits_per_coded_sample */
1612  return frame_bytes * 8 / bps;
1613  }
1614 
1615  if (ch > 0 && ch < INT_MAX/16) {
1616  /* calc from frame_bytes and channels */
1617  switch (id) {
1618  case AV_CODEC_ID_ADPCM_AFC:
1619  return frame_bytes / (9 * ch) * 16;
1620  case AV_CODEC_ID_ADPCM_PSX:
1621  case AV_CODEC_ID_ADPCM_DTK:
1622  return frame_bytes / (16 * ch) * 28;
1623  case AV_CODEC_ID_ADPCM_4XM:
1626  return (frame_bytes - 4 * ch) * 2 / ch;
1628  return (frame_bytes - 4) * 2 / ch;
1630  return (frame_bytes - 8) * 2 / ch;
1631  case AV_CODEC_ID_ADPCM_THP:
1633  if (extradata)
1634  return frame_bytes * 14 / (8 * ch);
1635  break;
1636  case AV_CODEC_ID_ADPCM_XA:
1637  return (frame_bytes / 128) * 224 / ch;
1639  return (frame_bytes - 6 - ch) / ch;
1640  case AV_CODEC_ID_ROQ_DPCM:
1641  return (frame_bytes - 8) / ch;
1642  case AV_CODEC_ID_XAN_DPCM:
1643  return (frame_bytes - 2 * ch) / ch;
1644  case AV_CODEC_ID_MACE3:
1645  return 3 * frame_bytes / ch;
1646  case AV_CODEC_ID_MACE6:
1647  return 6 * frame_bytes / ch;
1648  case AV_CODEC_ID_PCM_LXF:
1649  return 2 * (frame_bytes / (5 * ch));
1650  case AV_CODEC_ID_IAC:
1651  case AV_CODEC_ID_IMC:
1652  return 4 * frame_bytes / ch;
1653  }
1654 
1655  if (tag) {
1656  /* calc from frame_bytes, channels, and codec_tag */
1657  if (id == AV_CODEC_ID_SOL_DPCM) {
1658  if (tag == 3)
1659  return frame_bytes / ch;
1660  else
1661  return frame_bytes * 2 / ch;
1662  }
1663  }
1664 
1665  if (ba > 0) {
1666  /* calc from frame_bytes, channels, and block_align */
1667  int blocks = frame_bytes / ba;
1668  switch (id) {
1670  if (bps < 2 || bps > 5)
1671  return 0;
1672  return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1674  return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1676  return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1678  return blocks * ((ba - 4 * ch) * 2 / ch);
1679  case AV_CODEC_ID_ADPCM_MS:
1680  return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1682  return blocks * (ba - 16) * 2 / ch;
1683  }
1684  }
1685 
1686  if (bps > 0) {
1687  /* calc from frame_bytes, channels, and bits_per_coded_sample */
1688  switch (id) {
1689  case AV_CODEC_ID_PCM_DVD:
1690  if(bps<4 || frame_bytes<3)
1691  return 0;
1692  return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1694  if(bps<4 || frame_bytes<4)
1695  return 0;
1696  return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1697  case AV_CODEC_ID_S302M:
1698  return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1699  }
1700  }
1701  }
1702  }
1703 
1704  /* Fall back on using frame_size */
1705  if (frame_size > 1 && frame_bytes)
1706  return frame_size;
1707 
1708  //For WMA we currently have no other means to calculate duration thus we
1709  //do it here by assuming CBR, which is true for all known cases.
1710  if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1711  if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1712  return (frame_bytes * 8LL * sr) / bitrate;
1713  }
1714 
1715  return 0;
1716 }
1717 
1718 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1719 {
1720  return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1721  avctx->channels, avctx->block_align,
1722  avctx->codec_tag, avctx->bits_per_coded_sample,
1723  avctx->bit_rate, avctx->extradata, avctx->frame_size,
1724  frame_bytes);
1725 }
1726 
1728 {
1729  return get_audio_frame_duration(par->codec_id, par->sample_rate,
1730  par->channels, par->block_align,
1731  par->codec_tag, par->bits_per_coded_sample,
1732  par->bit_rate, par->extradata, par->frame_size,
1733  frame_bytes);
1734 }
1735 
1736 #if !HAVE_THREADS
1738 {
1739  return -1;
1740 }
1741 
1742 #endif
1743 
1744 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1745 {
1746  unsigned int n = 0;
1747 
1748  while (v >= 0xff) {
1749  *s++ = 0xff;
1750  v -= 0xff;
1751  n++;
1752  }
1753  *s = v;
1754  n++;
1755  return n;
1756 }
1757 
1758 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1759 {
1760  int i;
1761  for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1762  return i;
1763 }
1764 
1766 {
1767  int i;
1768  if (!codec->hw_configs || index < 0)
1769  return NULL;
1770  for (i = 0; i <= index; i++)
1771  if (!codec->hw_configs[i])
1772  return NULL;
1773  return &codec->hw_configs[index]->public;
1774 }
1775 
1776 #if FF_API_USER_VISIBLE_AVHWACCEL
1778 {
1779  return NULL;
1780 }
1781 
1783 {
1784 }
1785 #endif
1786 
1787 #if FF_API_LOCKMGR
1788 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1789 {
1790  return 0;
1791 }
1792 #endif
1793 
1794 unsigned int avpriv_toupper4(unsigned int x)
1795 {
1796  return av_toupper(x & 0xFF) +
1797  (av_toupper((x >> 8) & 0xFF) << 8) +
1798  (av_toupper((x >> 16) & 0xFF) << 16) +
1799 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1800 }
1801 
1803 {
1804  int ret;
1805 
1806  dst->owner[0] = src->owner[0];
1807  dst->owner[1] = src->owner[1];
1808 
1809  ret = av_frame_ref(dst->f, src->f);
1810  if (ret < 0)
1811  return ret;
1812 
1813  av_assert0(!dst->progress);
1814 
1815  if (src->progress &&
1816  !(dst->progress = av_buffer_ref(src->progress))) {
1817  ff_thread_release_buffer(dst->owner[0], dst);
1818  return AVERROR(ENOMEM);
1819  }
1820 
1821  return 0;
1822 }
1823 
1824 #if !HAVE_THREADS
1825 
1827 {
1828  return ff_get_format(avctx, fmt);
1829 }
1830 
1832 {
1833  f->owner[0] = f->owner[1] = avctx;
1834  return ff_get_buffer(avctx, f->f, flags);
1835 }
1836 
1838 {
1839  if (f->f)
1840  av_frame_unref(f->f);
1841 }
1842 
1844 {
1845 }
1846 
1848 {
1849 }
1850 
1851 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1852 {
1853 }
1854 
1856 {
1857  return 1;
1858 }
1859 
1861 {
1862  return 0;
1863 }
1864 
1866 {
1867 }
1868 
1869 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1870 {
1871 }
1872 
1873 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
1874 {
1875 }
1876 
1877 #endif
1878 
1880 {
1881  return !!s->internal;
1882 }
1883 
1884 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
1885 {
1886  int ret;
1887  char *str;
1888 
1889  ret = av_bprint_finalize(buf, &str);
1890  if (ret < 0)
1891  return ret;
1892  if (!av_bprint_is_complete(buf)) {
1893  av_free(str);
1894  return AVERROR(ENOMEM);
1895  }
1896 
1897  avctx->extradata = str;
1898  /* Note: the string is NUL terminated (so extradata can be read as a
1899  * string), but the ending character is not accounted in the size (in
1900  * binary formats you are likely not supposed to mux that character). When
1901  * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
1902  * zeros. */
1903  avctx->extradata_size = buf->len;
1904  return 0;
1905 }
1906 
1907 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
1908  const uint8_t *end,
1909  uint32_t *av_restrict state)
1910 {
1911  int i;
1912 
1913  av_assert0(p <= end);
1914  if (p >= end)
1915  return end;
1916 
1917  for (i = 0; i < 3; i++) {
1918  uint32_t tmp = *state << 8;
1919  *state = tmp + *(p++);
1920  if (tmp == 0x100 || p == end)
1921  return p;
1922  }
1923 
1924  while (p < end) {
1925  if (p[-1] > 1 ) p += 3;
1926  else if (p[-2] ) p += 2;
1927  else if (p[-3]|(p[-1]-1)) p++;
1928  else {
1929  p++;
1930  break;
1931  }
1932  }
1933 
1934  p = FFMIN(p, end) - 4;
1935  *state = AV_RB32(p);
1936 
1937  return p + 4;
1938 }
1939 
1941 {
1942  AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
1943  if (!props)
1944  return NULL;
1945 
1946  if (size)
1947  *size = sizeof(*props);
1948 
1949  props->vbv_delay = UINT64_MAX;
1950 
1951  return props;
1952 }
1953 
1955 {
1957  AVCPBProperties *props;
1958  size_t size;
1959 
1960  props = av_cpb_properties_alloc(&size);
1961  if (!props)
1962  return NULL;
1963 
1964  tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
1965  if (!tmp) {
1966  av_freep(&props);
1967  return NULL;
1968  }
1969 
1970  avctx->coded_side_data = tmp;
1971  avctx->nb_coded_side_data++;
1972 
1974  avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
1975  avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
1976 
1977  return props;
1978 }
1979 
1981 {
1982  av_freep(&par->extradata);
1983 
1984  memset(par, 0, sizeof(*par));
1985 
1987  par->codec_id = AV_CODEC_ID_NONE;
1988  par->format = -1;
1995  par->sample_aspect_ratio = (AVRational){ 0, 1 };
1996  par->profile = FF_PROFILE_UNKNOWN;
1997  par->level = FF_LEVEL_UNKNOWN;
1998 }
1999 
2001 {
2002  AVCodecParameters *par = av_mallocz(sizeof(*par));
2003 
2004  if (!par)
2005  return NULL;
2007  return par;
2008 }
2009 
2011 {
2012  AVCodecParameters *par = *ppar;
2013 
2014  if (!par)
2015  return;
2017 
2018  av_freep(ppar);
2019 }
2020 
2022 {
2024  memcpy(dst, src, sizeof(*dst));
2025 
2026  dst->extradata = NULL;
2027  dst->extradata_size = 0;
2028  if (src->extradata) {
2030  if (!dst->extradata)
2031  return AVERROR(ENOMEM);
2032  memcpy(dst->extradata, src->extradata, src->extradata_size);
2033  dst->extradata_size = src->extradata_size;
2034  }
2035 
2036  return 0;
2037 }
2038 
2040  const AVCodecContext *codec)
2041 {
2043 
2044  par->codec_type = codec->codec_type;
2045  par->codec_id = codec->codec_id;
2046  par->codec_tag = codec->codec_tag;
2047 
2048  par->bit_rate = codec->bit_rate;
2051  par->profile = codec->profile;
2052  par->level = codec->level;
2053 
2054  switch (par->codec_type) {
2055  case AVMEDIA_TYPE_VIDEO:
2056  par->format = codec->pix_fmt;
2057  par->width = codec->width;
2058  par->height = codec->height;
2059  par->field_order = codec->field_order;
2060  par->color_range = codec->color_range;
2061  par->color_primaries = codec->color_primaries;
2062  par->color_trc = codec->color_trc;
2063  par->color_space = codec->colorspace;
2066  par->video_delay = codec->has_b_frames;
2067  break;
2068  case AVMEDIA_TYPE_AUDIO:
2069  par->format = codec->sample_fmt;
2070  par->channel_layout = codec->channel_layout;
2071  par->channels = codec->channels;
2072  par->sample_rate = codec->sample_rate;
2073  par->block_align = codec->block_align;
2074  par->frame_size = codec->frame_size;
2075  par->initial_padding = codec->initial_padding;
2076  par->trailing_padding = codec->trailing_padding;
2077  par->seek_preroll = codec->seek_preroll;
2078  break;
2079  case AVMEDIA_TYPE_SUBTITLE:
2080  par->width = codec->width;
2081  par->height = codec->height;
2082  break;
2083  }
2084 
2085  if (codec->extradata) {
2087  if (!par->extradata)
2088  return AVERROR(ENOMEM);
2089  memcpy(par->extradata, codec->extradata, codec->extradata_size);
2090  par->extradata_size = codec->extradata_size;
2091  }
2092 
2093  return 0;
2094 }
2095 
2097  const AVCodecParameters *par)
2098 {
2099  codec->codec_type = par->codec_type;
2100  codec->codec_id = par->codec_id;
2101  codec->codec_tag = par->codec_tag;
2102 
2103  codec->bit_rate = par->bit_rate;
2106  codec->profile = par->profile;
2107  codec->level = par->level;
2108 
2109  switch (par->codec_type) {
2110  case AVMEDIA_TYPE_VIDEO:
2111  codec->pix_fmt = par->format;
2112  codec->width = par->width;
2113  codec->height = par->height;
2114  codec->field_order = par->field_order;
2115  codec->color_range = par->color_range;
2116  codec->color_primaries = par->color_primaries;
2117  codec->color_trc = par->color_trc;
2118  codec->colorspace = par->color_space;
2121  codec->has_b_frames = par->video_delay;
2122  break;
2123  case AVMEDIA_TYPE_AUDIO:
2124  codec->sample_fmt = par->format;
2125  codec->channel_layout = par->channel_layout;
2126  codec->channels = par->channels;
2127  codec->sample_rate = par->sample_rate;
2128  codec->block_align = par->block_align;
2129  codec->frame_size = par->frame_size;
2130  codec->delay =
2131  codec->initial_padding = par->initial_padding;
2132  codec->trailing_padding = par->trailing_padding;
2133  codec->seek_preroll = par->seek_preroll;
2134  break;
2135  case AVMEDIA_TYPE_SUBTITLE:
2136  codec->width = par->width;
2137  codec->height = par->height;
2138  break;
2139  }
2140 
2141  if (par->extradata) {
2142  av_freep(&codec->extradata);
2144  if (!codec->extradata)
2145  return AVERROR(ENOMEM);
2146  memcpy(codec->extradata, par->extradata, par->extradata_size);
2147  codec->extradata_size = par->extradata_size;
2148  }
2149 
2150  return 0;
2151 }
2152 
2153 int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
2154  void **data, size_t *sei_size)
2155 {
2156  AVFrameSideData *side_data = NULL;
2157  uint8_t *sei_data;
2158 
2159  if (frame)
2160  side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
2161 
2162  if (!side_data) {
2163  *data = NULL;
2164  return 0;
2165  }
2166 
2167  *sei_size = side_data->size + 11;
2168  *data = av_mallocz(*sei_size + prefix_len);
2169  if (!*data)
2170  return AVERROR(ENOMEM);
2171  sei_data = (uint8_t*)*data + prefix_len;
2172 
2173  // country code
2174  sei_data[0] = 181;
2175  sei_data[1] = 0;
2176  sei_data[2] = 49;
2177 
2178  /**
2179  * 'GA94' is standard in North America for ATSC, but hard coding
2180  * this style may not be the right thing to do -- other formats
2181  * do exist. This information is not available in the side_data
2182  * so we are going with this right now.
2183  */
2184  AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
2185  sei_data[7] = 3;
2186  sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
2187  sei_data[9] = 0;
2188 
2189  memcpy(sei_data + 10, side_data->data, side_data->size);
2190 
2191  sei_data[side_data->size+10] = 255;
2192 
2193  return 0;
2194 }
2195 
2197 {
2198  AVRational framerate = avctx->framerate;
2199  int bits_per_coded_sample = avctx->bits_per_coded_sample;
2200  int64_t bitrate;
2201 
2202  if (!(framerate.num && framerate.den))
2203  framerate = av_inv_q(avctx->time_base);
2204  if (!(framerate.num && framerate.den))
2205  return 0;
2206 
2207  if (!bits_per_coded_sample) {
2209  bits_per_coded_sample = av_get_bits_per_pixel(desc);
2210  }
2211  bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2212  framerate.num / framerate.den;
2213 
2214  return bitrate;
2215 }
2216 
2217 int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
2218  const int * array_valid_values, int default_value)
2219 {
2220  int i = 0, ref_val;
2221 
2222  while (1) {
2223  ref_val = array_valid_values[i];
2224  if (ref_val == INT_MAX)
2225  break;
2226  if (val == ref_val)
2227  return val;
2228  i++;
2229  }
2230  /* val is not a valid value */
2231  av_log(ctx, AV_LOG_DEBUG,
2232  "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
2233  return default_value;
2234 }
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:2196
#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
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:494
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
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:887
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:100
planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:249
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:159
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:1420
uint32_t fourcc
Definition: vaapi_decode.c:238
enum AVCodecID codec_id
Definition: qsv.c:77
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:518
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 &&1) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);return ctx;}void swri_audio_convert_free(AudioConvert **ctx){av_freep(ctx);}int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len){int ch;int off=0;const int os=(out->planar?1:out->ch_count)*out->bps;unsigned misaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask){int planes=in->planar?in->ch_count:1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;}if(ctx->out_simd_align_mask){int planes=out->planar?out->ch_count:1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;}if(ctx->simd_f &&!ctx->ch_map &&!misaligned){off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){if(out->planar==in->planar){int planes=out->planar?out->ch_count:1;for(ch=0;ch< planes;ch++){ctx->simd_f(out-> ch ch
Definition: audioconvert.c:56
const char * avcodec_license(void)
Return the libavcodec license.
Definition: utils.c:1425
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
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:36
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h: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:490
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
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
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:1826
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:1788
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
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 struct @315 state
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:1869
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
#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:2000
#define f(width, name)
Definition: cbs_vp9.c:255
const char * av_color_range_name(enum AVColorRange range)
Definition: pixdesc.c:2848
void * thread_ctx
Definition: internal.h:163
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
int ff_side_data_update_matrix_encoding(AVFrame *frame, enum AVMatrixEncoding matrix_encoding)
Add or update AV_FRAME_DATA_MATRIXENCODING side data.
Definition: utils.c: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 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
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_RB32
Definition: bytestream.h:87
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:2096
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:1954
Public header for CRC hash function implementation.
void * frame_thread_encoder
Definition: internal.h:180
int initial_padding
Audio only.
Definition: avcodec.h:4086
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:530
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_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:1532
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:484
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:1758
ptrdiff_t size
Definition: opengl_enc.c:100
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
Definition: rational.c:35
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
Definition: avcodec.h: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)
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:1940
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:1980
#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:1782
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:1081
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:479
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Copy the contents of src to dst.
Definition: utils.c:2021
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:1514
#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:2217
#define MAKE_ACCESSORS(str, name, type, field)
Definition: internal.h:91
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:136
unsigned int avpriv_toupper4(unsigned int x)
Definition: utils.c:1794
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
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this field
int64_t pts_correction_last_pts
Number of incorrect DTS values so far.
Definition: avcodec.h: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:1879
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:1737
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
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
GLsizei count
Definition: opengl_enc.c:108
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), little-endian
Definition: pixfmt.h:183
void ff_thread_free(AVCodecContext *avctx)
Definition: pthread.c:82
#define FFMAX(a, b)
Definition: common.h:94
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:2010
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:1727
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 b
Definition: input.c:41
#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:1431
AVFrame * compat_decode_frame
Definition: internal.h:213
void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
Definition: utils.c:1873
int width
picture width / height.
Definition: avcodec.h:1738
static void ff_unlock_avcodec(const AVCodec *codec)
Definition: utils.c:524
AVBufferRef * hw_frames_ctx
A reference to the AVHWFramesContext describing the input (for encoding) or output (decoding) frames...
Definition: avcodec.h:3262
#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
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
#define s(width, name)
Definition: cbs_vp9.c:257
int level
level
Definition: avcodec.h: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:1843
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), big-endian
Definition: pixfmt.h:180
const AVProfile * profiles
array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN} ...
Definition: 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:461
char * sub_charenc
DTS of the last frame.
Definition: avcodec.h:3152
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:1147
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
if(ret)
void av_get_channel_layout_string(char *buf, int buf_size, int nb_channels, uint64_t channel_layout)
Return a description of a channel layout.
planar GBR 4:4:4:4 48bpp, little-endian
Definition: pixfmt.h:288
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:1382
int frame_size
Number of samples per channel in an audio frame.
Definition: avcodec.h:2245
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:1777
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:1492
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:1765
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:892
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
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it be(in the first position) for now.Options-------Then comes the options array.This is what will define the user accessible options.For example
uint8_t * data
The data buffer.
Definition: buffer.h:89
int qmin
minimum quantizer
Definition: avcodec.h:2407
void avsubtitle_free(AVSubtitle *sub)
Free all allocated data in the given subtitle struct.
Definition: utils.c:1062
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:1744
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:1837
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:2039
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:542
#define snprintf
Definition: snprintf.h:34
int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
Return audio frame duration.
Definition: utils.c:1718
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:1884
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
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:1855
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:1847
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:448
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 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:1187
#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:1167
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)
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:1410
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
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:1851
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)
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:1802
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:1831
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:1860
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:2153
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:1907
void ff_reset_entries(AVCodecContext *avctx)
Definition: utils.c:1865
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
int depth
Number of bits in the component.
Definition: pixdesc.h:58
uint8_t ** extended_data
pointers to the data planes/channels.
Definition: frame.h: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:1395
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:435
#define AV_WL32(p, v)
Definition: intreadwrite.h:426
int64_t rc_max_rate
maximum bitrate
Definition: avcodec.h:2443
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 &&1) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);return ctx;}void swri_audio_convert_free(AudioConvert **ctx){av_freep(ctx);}int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len){int ch;int off=0;const int os=(out->planar?1:out->ch_count)*out->bps;unsigned misaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask){int planes=in->planar?in->ch_count:1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;}if(ctx->out_simd_align_mask){int planes=out->planar?out->ch_count:1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;}if(ctx->simd_f &&!ctx->ch_map &&!misaligned){off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){if(out->planar==in->planar){int planes=out->planar?out->ch_count:1;for(ch=0;ch< planes;ch++){ctx->simd_f(out-> ch const uint8_t **in ch off *out planar
Definition: audioconvert.c:56
void * av_mallocz_array(size_t nmemb, size_t size)
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