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;
416 
418 
419  for (p = 0; p<desc->nb_components; p++) {
420  uint8_t *dst = frame->data[p];
421  int is_chroma = p == 1 || p == 2;
422  int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
423  int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
424  if (desc->comp[0].depth >= 9) {
425  ((uint16_t*)dst)[0] = c[p];
426  av_memcpy_backptr(dst + 2, 2, bytes - 2);
427  dst += frame->linesize[p];
428  for (y = 1; y < height; y++) {
429  memcpy(dst, frame->data[p], 2*bytes);
430  dst += frame->linesize[p];
431  }
432  } else {
433  for (y = 0; y < height; y++) {
434  memset(dst, c[p], bytes);
435  dst += frame->linesize[p];
436  }
437  }
438  }
439 }
440 
441 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
442 {
443  int i;
444 
445  for (i = 0; i < count; i++) {
446  int r = func(c, (char *)arg + i * size);
447  if (ret)
448  ret[i] = r;
449  }
450  emms_c();
451  return 0;
452 }
453 
454 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
455 {
456  int i;
457 
458  for (i = 0; i < count; i++) {
459  int r = func(c, arg, i, 0);
460  if (ret)
461  ret[i] = r;
462  }
463  emms_c();
464  return 0;
465 }
466 
468  unsigned int fourcc)
469 {
470  while (tags->pix_fmt >= 0) {
471  if (tags->fourcc == fourcc)
472  return tags->pix_fmt;
473  tags++;
474  }
475  return AV_PIX_FMT_NONE;
476 }
477 
478 #if FF_API_CODEC_GET_SET
479 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
480 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
482 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
483 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
484 
486 {
487  return codec->properties;
488 }
489 
491 {
492  return codec->max_lowres;
493 }
494 #endif
495 
498 }
499 
501 {
502  int64_t bit_rate;
503  int bits_per_sample;
504 
505  switch (ctx->codec_type) {
506  case AVMEDIA_TYPE_VIDEO:
507  case AVMEDIA_TYPE_DATA:
510  bit_rate = ctx->bit_rate;
511  break;
512  case AVMEDIA_TYPE_AUDIO:
513  bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
514  bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
515  break;
516  default:
517  bit_rate = 0;
518  break;
519  }
520  return bit_rate;
521 }
522 
523 
524 static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
525 {
526  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
528 }
529 
530 static void ff_unlock_avcodec(const AVCodec *codec)
531 {
532  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
534 }
535 
536 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
537 {
538  int ret = 0;
539 
540  ff_unlock_avcodec(codec);
541 
542  ret = avcodec_open2(avctx, codec, options);
543 
544  ff_lock_avcodec(avctx, codec);
545  return ret;
546 }
547 
548 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
549 {
550  int ret = 0;
551  int codec_init_ok = 0;
552  AVDictionary *tmp = NULL;
553  const AVPixFmtDescriptor *pixdesc;
554 
555  if (avcodec_is_open(avctx))
556  return 0;
557 
558  if ((!codec && !avctx->codec)) {
559  av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
560  return AVERROR(EINVAL);
561  }
562  if ((codec && avctx->codec && codec != avctx->codec)) {
563  av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
564  "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
565  return AVERROR(EINVAL);
566  }
567  if (!codec)
568  codec = avctx->codec;
569 
570  if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
571  return AVERROR(EINVAL);
572 
573  if (options)
574  av_dict_copy(&tmp, *options, 0);
575 
576  ff_lock_avcodec(avctx, codec);
577 
578  avctx->internal = av_mallocz(sizeof(*avctx->internal));
579  if (!avctx->internal) {
580  ret = AVERROR(ENOMEM);
581  goto end;
582  }
583 
584  avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
585  if (!avctx->internal->pool) {
586  ret = AVERROR(ENOMEM);
587  goto free_and_end;
588  }
589 
590  avctx->internal->to_free = av_frame_alloc();
591  if (!avctx->internal->to_free) {
592  ret = AVERROR(ENOMEM);
593  goto free_and_end;
594  }
595 
597  if (!avctx->internal->compat_decode_frame) {
598  ret = AVERROR(ENOMEM);
599  goto free_and_end;
600  }
601 
603  if (!avctx->internal->buffer_frame) {
604  ret = AVERROR(ENOMEM);
605  goto free_and_end;
606  }
607 
608  avctx->internal->buffer_pkt = av_packet_alloc();
609  if (!avctx->internal->buffer_pkt) {
610  ret = AVERROR(ENOMEM);
611  goto free_and_end;
612  }
613 
614  avctx->internal->ds.in_pkt = av_packet_alloc();
615  if (!avctx->internal->ds.in_pkt) {
616  ret = AVERROR(ENOMEM);
617  goto free_and_end;
618  }
619 
621  if (!avctx->internal->last_pkt_props) {
622  ret = AVERROR(ENOMEM);
623  goto free_and_end;
624  }
625 
626  avctx->internal->skip_samples_multiplier = 1;
627 
628  if (codec->priv_data_size > 0) {
629  if (!avctx->priv_data) {
630  avctx->priv_data = av_mallocz(codec->priv_data_size);
631  if (!avctx->priv_data) {
632  ret = AVERROR(ENOMEM);
633  goto end;
634  }
635  if (codec->priv_class) {
636  *(const AVClass **)avctx->priv_data = codec->priv_class;
638  }
639  }
640  if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
641  goto free_and_end;
642  } else {
643  avctx->priv_data = NULL;
644  }
645  if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
646  goto free_and_end;
647 
648  if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
649  av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
650  ret = AVERROR(EINVAL);
651  goto free_and_end;
652  }
653 
654  // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
655  if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
656  (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
657  if (avctx->coded_width && avctx->coded_height)
658  ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
659  else if (avctx->width && avctx->height)
660  ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
661  if (ret < 0)
662  goto free_and_end;
663  }
664 
665  if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
666  && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
667  || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
668  av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
669  ff_set_dimensions(avctx, 0, 0);
670  }
671 
672  if (avctx->width > 0 && avctx->height > 0) {
673  if (av_image_check_sar(avctx->width, avctx->height,
674  avctx->sample_aspect_ratio) < 0) {
675  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
676  avctx->sample_aspect_ratio.num,
677  avctx->sample_aspect_ratio.den);
678  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
679  }
680  }
681 
682  /* if the decoder init function was already called previously,
683  * free the already allocated subtitle_header before overwriting it */
684  if (av_codec_is_decoder(codec))
685  av_freep(&avctx->subtitle_header);
686 
687  if (avctx->channels > FF_SANE_NB_CHANNELS || avctx->channels < 0) {
688  av_log(avctx, AV_LOG_ERROR, "Too many or invalid channels: %d\n", avctx->channels);
689  ret = AVERROR(EINVAL);
690  goto free_and_end;
691  }
692  if (avctx->sample_rate < 0) {
693  av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate);
694  ret = AVERROR(EINVAL);
695  goto free_and_end;
696  }
697 
698  avctx->codec = codec;
699  if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
700  avctx->codec_id == AV_CODEC_ID_NONE) {
701  avctx->codec_type = codec->type;
702  avctx->codec_id = codec->id;
703  }
704  if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
705  && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
706  av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
707  ret = AVERROR(EINVAL);
708  goto free_and_end;
709  }
710  avctx->frame_number = 0;
712 
713  if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
715  const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
716  AVCodec *codec2;
717  av_log(avctx, AV_LOG_ERROR,
718  "The %s '%s' is experimental but experimental codecs are not enabled, "
719  "add '-strict %d' if you want to use it.\n",
720  codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
721  codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
722  if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
723  av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
724  codec_string, codec2->name);
725  ret = AVERROR_EXPERIMENTAL;
726  goto free_and_end;
727  }
728 
729  if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
730  (!avctx->time_base.num || !avctx->time_base.den)) {
731  avctx->time_base.num = 1;
732  avctx->time_base.den = avctx->sample_rate;
733  }
734 
735  if (!HAVE_THREADS)
736  av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
737 
738  if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
739  ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
740  ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
741  ff_lock_avcodec(avctx, codec);
742  if (ret < 0)
743  goto free_and_end;
744  }
745 
746  if (av_codec_is_decoder(avctx->codec)) {
747  ret = ff_decode_bsfs_init(avctx);
748  if (ret < 0)
749  goto free_and_end;
750  }
751 
752  if (HAVE_THREADS
754  ret = ff_thread_init(avctx);
755  if (ret < 0) {
756  goto free_and_end;
757  }
758  }
759  if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
760  avctx->thread_count = 1;
761 
762  if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
763  av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
764  avctx->codec->max_lowres);
765  avctx->lowres = avctx->codec->max_lowres;
766  }
767 
768  if (av_codec_is_encoder(avctx->codec)) {
769  int i;
770 #if FF_API_CODED_FRAME
772  avctx->coded_frame = av_frame_alloc();
773  if (!avctx->coded_frame) {
774  ret = AVERROR(ENOMEM);
775  goto free_and_end;
776  }
778 #endif
779 
780  if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
781  av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
782  ret = AVERROR(EINVAL);
783  goto free_and_end;
784  }
785 
786  if (avctx->codec->sample_fmts) {
787  for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
788  if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
789  break;
790  if (avctx->channels == 1 &&
793  avctx->sample_fmt = avctx->codec->sample_fmts[i];
794  break;
795  }
796  }
797  if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
798  char buf[128];
799  snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
800  av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
801  (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
802  ret = AVERROR(EINVAL);
803  goto free_and_end;
804  }
805  }
806  if (avctx->codec->pix_fmts) {
807  for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
808  if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
809  break;
810  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
811  && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
813  char buf[128];
814  snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
815  av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
816  (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
817  ret = AVERROR(EINVAL);
818  goto free_and_end;
819  }
820  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
821  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
822  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
823  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
824  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
825  avctx->color_range = AVCOL_RANGE_JPEG;
826  }
827  if (avctx->codec->supported_samplerates) {
828  for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
829  if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
830  break;
831  if (avctx->codec->supported_samplerates[i] == 0) {
832  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
833  avctx->sample_rate);
834  ret = AVERROR(EINVAL);
835  goto free_and_end;
836  }
837  }
838  if (avctx->sample_rate < 0) {
839  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
840  avctx->sample_rate);
841  ret = AVERROR(EINVAL);
842  goto free_and_end;
843  }
844  if (avctx->codec->channel_layouts) {
845  if (!avctx->channel_layout) {
846  av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
847  } else {
848  for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
849  if (avctx->channel_layout == avctx->codec->channel_layouts[i])
850  break;
851  if (avctx->codec->channel_layouts[i] == 0) {
852  char buf[512];
853  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
854  av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
855  ret = AVERROR(EINVAL);
856  goto free_and_end;
857  }
858  }
859  }
860  if (avctx->channel_layout && avctx->channels) {
862  if (channels != avctx->channels) {
863  char buf[512];
864  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
865  av_log(avctx, AV_LOG_ERROR,
866  "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
867  buf, channels, avctx->channels);
868  ret = AVERROR(EINVAL);
869  goto free_and_end;
870  }
871  } else if (avctx->channel_layout) {
873  }
874  if (avctx->channels < 0) {
875  av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
876  avctx->channels);
877  ret = AVERROR(EINVAL);
878  goto free_and_end;
879  }
880  if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
881  pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
882  if ( avctx->bits_per_raw_sample < 0
883  || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
884  av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
885  avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
886  avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
887  }
888  if (avctx->width <= 0 || avctx->height <= 0) {
889  av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
890  ret = AVERROR(EINVAL);
891  goto free_and_end;
892  }
893  }
894  if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
895  && avctx->bit_rate>0 && avctx->bit_rate<1000) {
896  av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
897  }
898 
899  if (!avctx->rc_initial_buffer_occupancy)
900  avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
901 
902  if (avctx->ticks_per_frame && avctx->time_base.num &&
903  avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
904  av_log(avctx, AV_LOG_ERROR,
905  "ticks_per_frame %d too large for the timebase %d/%d.",
906  avctx->ticks_per_frame,
907  avctx->time_base.num,
908  avctx->time_base.den);
909  goto free_and_end;
910  }
911 
912  if (avctx->hw_frames_ctx) {
913  AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
914  if (frames_ctx->format != avctx->pix_fmt) {
915  av_log(avctx, AV_LOG_ERROR,
916  "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
917  ret = AVERROR(EINVAL);
918  goto free_and_end;
919  }
920  if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
921  avctx->sw_pix_fmt != frames_ctx->sw_format) {
922  av_log(avctx, AV_LOG_ERROR,
923  "Mismatching AVCodecContext.sw_pix_fmt (%s) "
924  "and AVHWFramesContext.sw_format (%s)\n",
926  av_get_pix_fmt_name(frames_ctx->sw_format));
927  ret = AVERROR(EINVAL);
928  goto free_and_end;
929  }
930  avctx->sw_pix_fmt = frames_ctx->sw_format;
931  }
932  }
933 
936  avctx->pts_correction_last_pts =
937  avctx->pts_correction_last_dts = INT64_MIN;
938 
939  if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
941  av_log(avctx, AV_LOG_WARNING,
942  "gray decoding requested but not enabled at configuration time\n");
943 
944  if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
945  || avctx->internal->frame_thread_encoder)) {
946  ret = avctx->codec->init(avctx);
947  if (ret < 0) {
948  goto free_and_end;
949  }
950  codec_init_ok = 1;
951  }
952 
953  ret=0;
954 
955  if (av_codec_is_decoder(avctx->codec)) {
956  if (!avctx->bit_rate)
957  avctx->bit_rate = get_bit_rate(avctx);
958  /* validate channel layout from the decoder */
959  if (avctx->channel_layout) {
961  if (!avctx->channels)
962  avctx->channels = channels;
963  else if (channels != avctx->channels) {
964  char buf[512];
965  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
966  av_log(avctx, AV_LOG_WARNING,
967  "Channel layout '%s' with %d channels does not match specified number of channels %d: "
968  "ignoring specified channel layout\n",
969  buf, channels, avctx->channels);
970  avctx->channel_layout = 0;
971  }
972  }
973  if (avctx->channels && avctx->channels < 0 ||
974  avctx->channels > FF_SANE_NB_CHANNELS) {
975  ret = AVERROR(EINVAL);
976  goto free_and_end;
977  }
978  if (avctx->bits_per_coded_sample < 0) {
979  ret = AVERROR(EINVAL);
980  goto free_and_end;
981  }
982  if (avctx->sub_charenc) {
983  if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
984  av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
985  "supported with subtitles codecs\n");
986  ret = AVERROR(EINVAL);
987  goto free_and_end;
988  } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
989  av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
990  "subtitles character encoding will be ignored\n",
991  avctx->codec_descriptor->name);
993  } else {
994  /* input character encoding is set for a text based subtitle
995  * codec at this point */
998 
1000 #if CONFIG_ICONV
1001  iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1002  if (cd == (iconv_t)-1) {
1003  ret = AVERROR(errno);
1004  av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1005  "with input character encoding \"%s\"\n", avctx->sub_charenc);
1006  goto free_and_end;
1007  }
1008  iconv_close(cd);
1009 #else
1010  av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1011  "conversion needs a libavcodec built with iconv support "
1012  "for this codec\n");
1013  ret = AVERROR(ENOSYS);
1014  goto free_and_end;
1015 #endif
1016  }
1017  }
1018  }
1019 
1020 #if FF_API_AVCTX_TIMEBASE
1021  if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1022  avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1023 #endif
1024  }
1025  if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1026  av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1027  }
1028 
1029 end:
1030  ff_unlock_avcodec(codec);
1031  if (options) {
1032  av_dict_free(options);
1033  *options = tmp;
1034  }
1035 
1036  return ret;
1037 free_and_end:
1038  if (avctx->codec && avctx->codec->close &&
1039  (codec_init_ok ||
1041  avctx->codec->close(avctx);
1042 
1043  if (HAVE_THREADS && avctx->internal->thread_ctx)
1044  ff_thread_free(avctx);
1045 
1046  if (codec->priv_class && codec->priv_data_size)
1047  av_opt_free(avctx->priv_data);
1048  av_opt_free(avctx);
1049 
1050 #if FF_API_CODED_FRAME
1052  av_frame_free(&avctx->coded_frame);
1054 #endif
1055 
1056  av_dict_free(&tmp);
1057  av_freep(&avctx->priv_data);
1058  av_freep(&avctx->subtitle_header);
1059  if (avctx->internal) {
1060  av_frame_free(&avctx->internal->to_free);
1065 
1066  av_packet_free(&avctx->internal->ds.in_pkt);
1067  ff_decode_bsfs_uninit(avctx);
1068 
1069  av_freep(&avctx->internal->pool);
1070  }
1071  av_freep(&avctx->internal);
1072  avctx->codec = NULL;
1073  goto end;
1074 }
1075 
1077 {
1078  int i;
1079 
1080  for (i = 0; i < sub->num_rects; i++) {
1081  av_freep(&sub->rects[i]->data[0]);
1082  av_freep(&sub->rects[i]->data[1]);
1083  av_freep(&sub->rects[i]->data[2]);
1084  av_freep(&sub->rects[i]->data[3]);
1085  av_freep(&sub->rects[i]->text);
1086  av_freep(&sub->rects[i]->ass);
1087  av_freep(&sub->rects[i]);
1088  }
1089 
1090  av_freep(&sub->rects);
1091 
1092  memset(sub, 0, sizeof(*sub));
1093 }
1094 
1096 {
1097  int i;
1098 
1099  if (!avctx)
1100  return 0;
1101 
1102  if (avcodec_is_open(avctx)) {
1103  FramePool *pool = avctx->internal->pool;
1104  if (CONFIG_FRAME_THREAD_ENCODER &&
1105  avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1107  }
1108  if (HAVE_THREADS && avctx->internal->thread_ctx)
1109  ff_thread_free(avctx);
1110  if (avctx->codec && avctx->codec->close)
1111  avctx->codec->close(avctx);
1112  avctx->internal->byte_buffer_size = 0;
1113  av_freep(&avctx->internal->byte_buffer);
1114  av_frame_free(&avctx->internal->to_free);
1119 
1120  av_packet_free(&avctx->internal->ds.in_pkt);
1121 
1122  for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
1123  av_buffer_pool_uninit(&pool->pools[i]);
1124  av_freep(&avctx->internal->pool);
1125 
1126  if (avctx->hwaccel && avctx->hwaccel->uninit)
1127  avctx->hwaccel->uninit(avctx);
1129 
1130  ff_decode_bsfs_uninit(avctx);
1131 
1132  av_freep(&avctx->internal);
1133  }
1134 
1135  for (i = 0; i < avctx->nb_coded_side_data; i++)
1136  av_freep(&avctx->coded_side_data[i].data);
1137  av_freep(&avctx->coded_side_data);
1138  avctx->nb_coded_side_data = 0;
1139 
1140  av_buffer_unref(&avctx->hw_frames_ctx);
1141  av_buffer_unref(&avctx->hw_device_ctx);
1142 
1143  if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1144  av_opt_free(avctx->priv_data);
1145  av_opt_free(avctx);
1146  av_freep(&avctx->priv_data);
1147  if (av_codec_is_encoder(avctx->codec)) {
1148  av_freep(&avctx->extradata);
1149 #if FF_API_CODED_FRAME
1151  av_frame_free(&avctx->coded_frame);
1153 #endif
1154  }
1155  avctx->codec = NULL;
1156  avctx->active_thread_type = 0;
1157 
1158  return 0;
1159 }
1160 
1161 const char *avcodec_get_name(enum AVCodecID id)
1162 {
1163  const AVCodecDescriptor *cd;
1164  AVCodec *codec;
1165 
1166  if (id == AV_CODEC_ID_NONE)
1167  return "none";
1168  cd = avcodec_descriptor_get(id);
1169  if (cd)
1170  return cd->name;
1171  av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1172  codec = avcodec_find_decoder(id);
1173  if (codec)
1174  return codec->name;
1175  codec = avcodec_find_encoder(id);
1176  if (codec)
1177  return codec->name;
1178  return "unknown_codec";
1179 }
1180 
1181 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1182 {
1183  int i, len, ret = 0;
1184 
1185 #define TAG_PRINT(x) \
1186  (((x) >= '0' && (x) <= '9') || \
1187  ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1188  ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
1189 
1190  for (i = 0; i < 4; i++) {
1191  len = snprintf(buf, buf_size,
1192  TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1193  buf += len;
1194  buf_size = buf_size > len ? buf_size - len : 0;
1195  ret += len;
1196  codec_tag >>= 8;
1197  }
1198  return ret;
1199 }
1200 
1201 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1202 {
1203  const char *codec_type;
1204  const char *codec_name;
1205  const char *profile = NULL;
1206  int64_t bitrate;
1207  int new_line = 0;
1208  AVRational display_aspect_ratio;
1209  const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1210 
1211  if (!buf || buf_size <= 0)
1212  return;
1213  codec_type = av_get_media_type_string(enc->codec_type);
1214  codec_name = avcodec_get_name(enc->codec_id);
1215  profile = avcodec_profile_name(enc->codec_id, enc->profile);
1216 
1217  snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1218  codec_name);
1219  buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1220 
1221  if (enc->codec && strcmp(enc->codec->name, codec_name))
1222  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1223 
1224  if (profile)
1225  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1226  if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1228  && enc->refs)
1229  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1230  ", %d reference frame%s",
1231  enc->refs, enc->refs > 1 ? "s" : "");
1232 
1233  if (enc->codec_tag)
1234  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1235  av_fourcc2str(enc->codec_tag), enc->codec_tag);
1236 
1237  switch (enc->codec_type) {
1238  case AVMEDIA_TYPE_VIDEO:
1239  {
1240  char detail[256] = "(";
1241 
1242  av_strlcat(buf, separator, buf_size);
1243 
1244  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1245  "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1247  if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1249  av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1251  av_strlcatf(detail, sizeof(detail), "%s, ",
1253 
1254  if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1256  enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1257  if (enc->colorspace != (int)enc->color_primaries ||
1258  enc->colorspace != (int)enc->color_trc) {
1259  new_line = 1;
1260  av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1264  } else
1265  av_strlcatf(detail, sizeof(detail), "%s, ",
1267  }
1268 
1269  if (enc->field_order != AV_FIELD_UNKNOWN) {
1270  const char *field_order = "progressive";
1271  if (enc->field_order == AV_FIELD_TT)
1272  field_order = "top first";
1273  else if (enc->field_order == AV_FIELD_BB)
1274  field_order = "bottom first";
1275  else if (enc->field_order == AV_FIELD_TB)
1276  field_order = "top coded first (swapped)";
1277  else if (enc->field_order == AV_FIELD_BT)
1278  field_order = "bottom coded first (swapped)";
1279 
1280  av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1281  }
1282 
1283  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1285  av_strlcatf(detail, sizeof(detail), "%s, ",
1287 
1288  if (strlen(detail) > 1) {
1289  detail[strlen(detail) - 2] = 0;
1290  av_strlcatf(buf, buf_size, "%s)", detail);
1291  }
1292  }
1293 
1294  if (enc->width) {
1295  av_strlcat(buf, new_line ? separator : ", ", buf_size);
1296 
1297  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1298  "%dx%d",
1299  enc->width, enc->height);
1300 
1301  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1302  (enc->width != enc->coded_width ||
1303  enc->height != enc->coded_height))
1304  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1305  " (%dx%d)", enc->coded_width, enc->coded_height);
1306 
1307  if (enc->sample_aspect_ratio.num) {
1308  av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1309  enc->width * (int64_t)enc->sample_aspect_ratio.num,
1310  enc->height * (int64_t)enc->sample_aspect_ratio.den,
1311  1024 * 1024);
1312  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1313  " [SAR %d:%d DAR %d:%d]",
1315  display_aspect_ratio.num, display_aspect_ratio.den);
1316  }
1317  if (av_log_get_level() >= AV_LOG_DEBUG) {
1318  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1319  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1320  ", %d/%d",
1321  enc->time_base.num / g, enc->time_base.den / g);
1322  }
1323  }
1324  if (encode) {
1325  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1326  ", q=%d-%d", enc->qmin, enc->qmax);
1327  } else {
1329  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1330  ", Closed Captions");
1332  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1333  ", lossless");
1334  }
1335  break;
1336  case AVMEDIA_TYPE_AUDIO:
1337  av_strlcat(buf, separator, buf_size);
1338 
1339  if (enc->sample_rate) {
1340  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1341  "%d Hz, ", enc->sample_rate);
1342  }
1343  av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1344  if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1345  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1346  ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1347  }
1348  if ( enc->bits_per_raw_sample > 0
1350  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1351  " (%d bit)", enc->bits_per_raw_sample);
1352  if (av_log_get_level() >= AV_LOG_VERBOSE) {
1353  if (enc->initial_padding)
1354  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1355  ", delay %d", enc->initial_padding);
1356  if (enc->trailing_padding)
1357  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1358  ", padding %d", enc->trailing_padding);
1359  }
1360  break;
1361  case AVMEDIA_TYPE_DATA:
1362  if (av_log_get_level() >= AV_LOG_DEBUG) {
1363  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1364  if (g)
1365  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1366  ", %d/%d",
1367  enc->time_base.num / g, enc->time_base.den / g);
1368  }
1369  break;
1370  case AVMEDIA_TYPE_SUBTITLE:
1371  if (enc->width)
1372  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1373  ", %dx%d", enc->width, enc->height);
1374  break;
1375  default:
1376  return;
1377  }
1378  if (encode) {
1379  if (enc->flags & AV_CODEC_FLAG_PASS1)
1380  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1381  ", pass 1");
1382  if (enc->flags & AV_CODEC_FLAG_PASS2)
1383  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1384  ", pass 2");
1385  }
1386  bitrate = get_bit_rate(enc);
1387  if (bitrate != 0) {
1388  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1389  ", %"PRId64" kb/s", bitrate / 1000);
1390  } else if (enc->rc_max_rate > 0) {
1391  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1392  ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1393  }
1394 }
1395 
1396 const char *av_get_profile_name(const AVCodec *codec, int profile)
1397 {
1398  const AVProfile *p;
1399  if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1400  return NULL;
1401 
1402  for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1403  if (p->profile == profile)
1404  return p->name;
1405 
1406  return NULL;
1407 }
1408 
1410 {
1411  const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1412  const AVProfile *p;
1413 
1414  if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1415  return NULL;
1416 
1417  for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1418  if (p->profile == profile)
1419  return p->name;
1420 
1421  return NULL;
1422 }
1423 
1424 unsigned avcodec_version(void)
1425 {
1428  av_assert0(AV_CODEC_ID_SRT==94216);
1430 
1431  return LIBAVCODEC_VERSION_INT;
1432 }
1433 
1434 const char *avcodec_configuration(void)
1435 {
1436  return FFMPEG_CONFIGURATION;
1437 }
1438 
1439 const char *avcodec_license(void)
1440 {
1441 #define LICENSE_PREFIX "libavcodec license: "
1442  return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
1443 }
1444 
1446 {
1447  switch (codec_id) {
1448  case AV_CODEC_ID_8SVX_EXP:
1449  case AV_CODEC_ID_8SVX_FIB:
1450  case AV_CODEC_ID_ADPCM_CT:
1458  return 4;
1459  case AV_CODEC_ID_DSD_LSBF:
1460  case AV_CODEC_ID_DSD_MSBF:
1463  case AV_CODEC_ID_PCM_ALAW:
1464  case AV_CODEC_ID_PCM_MULAW:
1465  case AV_CODEC_ID_PCM_VIDC:
1466  case AV_CODEC_ID_PCM_S8:
1468  case AV_CODEC_ID_PCM_U8:
1469  case AV_CODEC_ID_PCM_ZORK:
1470  case AV_CODEC_ID_SDX2_DPCM:
1471  return 8;
1472  case AV_CODEC_ID_PCM_S16BE:
1474  case AV_CODEC_ID_PCM_S16LE:
1476  case AV_CODEC_ID_PCM_U16BE:
1477  case AV_CODEC_ID_PCM_U16LE:
1478  return 16;
1480  case AV_CODEC_ID_PCM_S24BE:
1481  case AV_CODEC_ID_PCM_S24LE:
1483  case AV_CODEC_ID_PCM_U24BE:
1484  case AV_CODEC_ID_PCM_U24LE:
1485  return 24;
1486  case AV_CODEC_ID_PCM_S32BE:
1487  case AV_CODEC_ID_PCM_S32LE:
1489  case AV_CODEC_ID_PCM_U32BE:
1490  case AV_CODEC_ID_PCM_U32LE:
1491  case AV_CODEC_ID_PCM_F32BE:
1492  case AV_CODEC_ID_PCM_F32LE:
1493  case AV_CODEC_ID_PCM_F24LE:
1494  case AV_CODEC_ID_PCM_F16LE:
1495  return 32;
1496  case AV_CODEC_ID_PCM_F64BE:
1497  case AV_CODEC_ID_PCM_F64LE:
1498  case AV_CODEC_ID_PCM_S64BE:
1499  case AV_CODEC_ID_PCM_S64LE:
1500  return 64;
1501  default:
1502  return 0;
1503  }
1504 }
1505 
1507 {
1508  static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
1514  [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1515  [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1516  [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1518  [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1519  [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1520  };
1521  if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
1522  return AV_CODEC_ID_NONE;
1523  if (be < 0 || be > 1)
1524  be = AV_NE(1, 0);
1525  return map[fmt][be];
1526 }
1527 
1529 {
1530  switch (codec_id) {
1532  return 2;
1534  return 3;
1538  case AV_CODEC_ID_ADPCM_SWF:
1539  case AV_CODEC_ID_ADPCM_MS:
1540  return 4;
1541  default:
1542  return av_get_exact_bits_per_sample(codec_id);
1543  }
1544 }
1545 
1546 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1547  uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1548  uint8_t * extradata, int frame_size, int frame_bytes)
1549 {
1551  int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1552 
1553  /* codecs with an exact constant bits per sample */
1554  if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1555  return (frame_bytes * 8LL) / (bps * ch);
1556  bps = bits_per_coded_sample;
1557 
1558  /* codecs with a fixed packet duration */
1559  switch (id) {
1560  case AV_CODEC_ID_ADPCM_ADX: return 32;
1561  case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1562  case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1563  case AV_CODEC_ID_AMR_NB:
1564  case AV_CODEC_ID_EVRC:
1565  case AV_CODEC_ID_GSM:
1566  case AV_CODEC_ID_QCELP:
1567  case AV_CODEC_ID_RA_288: return 160;
1568  case AV_CODEC_ID_AMR_WB:
1569  case AV_CODEC_ID_GSM_MS: return 320;
1570  case AV_CODEC_ID_MP1: return 384;
1571  case AV_CODEC_ID_ATRAC1: return 512;
1572  case AV_CODEC_ID_ATRAC9:
1573  case AV_CODEC_ID_ATRAC3: return 1024 * framecount;
1574  case AV_CODEC_ID_ATRAC3P: return 2048;
1575  case AV_CODEC_ID_MP2:
1576  case AV_CODEC_ID_MUSEPACK7: return 1152;
1577  case AV_CODEC_ID_AC3: return 1536;
1578  }
1579 
1580  if (sr > 0) {
1581  /* calc from sample rate */
1582  if (id == AV_CODEC_ID_TTA)
1583  return 256 * sr / 245;
1584  else if (id == AV_CODEC_ID_DST)
1585  return 588 * sr / 44100;
1586 
1587  if (ch > 0) {
1588  /* calc from sample rate and channels */
1589  if (id == AV_CODEC_ID_BINKAUDIO_DCT)
1590  return (480 << (sr / 22050)) / ch;
1591  }
1592 
1593  if (id == AV_CODEC_ID_MP3)
1594  return sr <= 24000 ? 576 : 1152;
1595  }
1596 
1597  if (ba > 0) {
1598  /* calc from block_align */
1599  if (id == AV_CODEC_ID_SIPR) {
1600  switch (ba) {
1601  case 20: return 160;
1602  case 19: return 144;
1603  case 29: return 288;
1604  case 37: return 480;
1605  }
1606  } else if (id == AV_CODEC_ID_ILBC) {
1607  switch (ba) {
1608  case 38: return 160;
1609  case 50: return 240;
1610  }
1611  }
1612  }
1613 
1614  if (frame_bytes > 0) {
1615  /* calc from frame_bytes only */
1616  if (id == AV_CODEC_ID_TRUESPEECH)
1617  return 240 * (frame_bytes / 32);
1618  if (id == AV_CODEC_ID_NELLYMOSER)
1619  return 256 * (frame_bytes / 64);
1620  if (id == AV_CODEC_ID_RA_144)
1621  return 160 * (frame_bytes / 20);
1622 
1623  if (bps > 0) {
1624  /* calc from frame_bytes and bits_per_coded_sample */
1626  return frame_bytes * 8 / bps;
1627  }
1628 
1629  if (ch > 0 && ch < INT_MAX/16) {
1630  /* calc from frame_bytes and channels */
1631  switch (id) {
1632  case AV_CODEC_ID_ADPCM_AFC:
1633  return frame_bytes / (9 * ch) * 16;
1634  case AV_CODEC_ID_ADPCM_PSX:
1635  case AV_CODEC_ID_ADPCM_DTK:
1636  return frame_bytes / (16 * ch) * 28;
1637  case AV_CODEC_ID_ADPCM_4XM:
1640  return (frame_bytes - 4 * ch) * 2 / ch;
1642  return (frame_bytes - 4) * 2 / ch;
1644  return (frame_bytes - 8) * 2 / ch;
1645  case AV_CODEC_ID_ADPCM_THP:
1647  if (extradata)
1648  return frame_bytes * 14 / (8 * ch);
1649  break;
1650  case AV_CODEC_ID_ADPCM_XA:
1651  return (frame_bytes / 128) * 224 / ch;
1653  return (frame_bytes - 6 - ch) / ch;
1654  case AV_CODEC_ID_ROQ_DPCM:
1655  return (frame_bytes - 8) / ch;
1656  case AV_CODEC_ID_XAN_DPCM:
1657  return (frame_bytes - 2 * ch) / ch;
1658  case AV_CODEC_ID_MACE3:
1659  return 3 * frame_bytes / ch;
1660  case AV_CODEC_ID_MACE6:
1661  return 6 * frame_bytes / ch;
1662  case AV_CODEC_ID_PCM_LXF:
1663  return 2 * (frame_bytes / (5 * ch));
1664  case AV_CODEC_ID_IAC:
1665  case AV_CODEC_ID_IMC:
1666  return 4 * frame_bytes / ch;
1667  }
1668 
1669  if (tag) {
1670  /* calc from frame_bytes, channels, and codec_tag */
1671  if (id == AV_CODEC_ID_SOL_DPCM) {
1672  if (tag == 3)
1673  return frame_bytes / ch;
1674  else
1675  return frame_bytes * 2 / ch;
1676  }
1677  }
1678 
1679  if (ba > 0) {
1680  /* calc from frame_bytes, channels, and block_align */
1681  int blocks = frame_bytes / ba;
1682  switch (id) {
1684  if (bps < 2 || bps > 5)
1685  return 0;
1686  return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1688  return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1690  return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1692  return blocks * ((ba - 4 * ch) * 2 / ch);
1693  case AV_CODEC_ID_ADPCM_MS:
1694  return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1696  return blocks * (ba - 16) * 2 / ch;
1697  }
1698  }
1699 
1700  if (bps > 0) {
1701  /* calc from frame_bytes, channels, and bits_per_coded_sample */
1702  switch (id) {
1703  case AV_CODEC_ID_PCM_DVD:
1704  if(bps<4 || frame_bytes<3)
1705  return 0;
1706  return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1708  if(bps<4 || frame_bytes<4)
1709  return 0;
1710  return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1711  case AV_CODEC_ID_S302M:
1712  return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1713  }
1714  }
1715  }
1716  }
1717 
1718  /* Fall back on using frame_size */
1719  if (frame_size > 1 && frame_bytes)
1720  return frame_size;
1721 
1722  //For WMA we currently have no other means to calculate duration thus we
1723  //do it here by assuming CBR, which is true for all known cases.
1724  if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1725  if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1726  return (frame_bytes * 8LL * sr) / bitrate;
1727  }
1728 
1729  return 0;
1730 }
1731 
1732 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1733 {
1734  return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1735  avctx->channels, avctx->block_align,
1736  avctx->codec_tag, avctx->bits_per_coded_sample,
1737  avctx->bit_rate, avctx->extradata, avctx->frame_size,
1738  frame_bytes);
1739 }
1740 
1742 {
1743  return get_audio_frame_duration(par->codec_id, par->sample_rate,
1744  par->channels, par->block_align,
1745  par->codec_tag, par->bits_per_coded_sample,
1746  par->bit_rate, par->extradata, par->frame_size,
1747  frame_bytes);
1748 }
1749 
1750 #if !HAVE_THREADS
1752 {
1753  return -1;
1754 }
1755 
1756 #endif
1757 
1758 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1759 {
1760  unsigned int n = 0;
1761 
1762  while (v >= 0xff) {
1763  *s++ = 0xff;
1764  v -= 0xff;
1765  n++;
1766  }
1767  *s = v;
1768  n++;
1769  return n;
1770 }
1771 
1772 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1773 {
1774  int i;
1775  for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1776  return i;
1777 }
1778 
1780 {
1781  int i;
1782  if (!codec->hw_configs || index < 0)
1783  return NULL;
1784  for (i = 0; i <= index; i++)
1785  if (!codec->hw_configs[i])
1786  return NULL;
1787  return &codec->hw_configs[index]->public;
1788 }
1789 
1790 #if FF_API_USER_VISIBLE_AVHWACCEL
1792 {
1793  return NULL;
1794 }
1795 
1797 {
1798 }
1799 #endif
1800 
1801 #if FF_API_LOCKMGR
1802 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1803 {
1804  return 0;
1805 }
1806 #endif
1807 
1808 unsigned int avpriv_toupper4(unsigned int x)
1809 {
1810  return av_toupper(x & 0xFF) +
1811  (av_toupper((x >> 8) & 0xFF) << 8) +
1812  (av_toupper((x >> 16) & 0xFF) << 16) +
1813 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1814 }
1815 
1817 {
1818  int ret;
1819 
1820  dst->owner[0] = src->owner[0];
1821  dst->owner[1] = src->owner[1];
1822 
1823  ret = av_frame_ref(dst->f, src->f);
1824  if (ret < 0)
1825  return ret;
1826 
1827  av_assert0(!dst->progress);
1828 
1829  if (src->progress &&
1830  !(dst->progress = av_buffer_ref(src->progress))) {
1831  ff_thread_release_buffer(dst->owner[0], dst);
1832  return AVERROR(ENOMEM);
1833  }
1834 
1835  return 0;
1836 }
1837 
1838 #if !HAVE_THREADS
1839 
1841 {
1842  return ff_get_format(avctx, fmt);
1843 }
1844 
1846 {
1847  f->owner[0] = f->owner[1] = avctx;
1848  return ff_get_buffer(avctx, f->f, flags);
1849 }
1850 
1852 {
1853  if (f->f)
1854  av_frame_unref(f->f);
1855 }
1856 
1858 {
1859 }
1860 
1862 {
1863 }
1864 
1865 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1866 {
1867 }
1868 
1870 {
1871  return 1;
1872 }
1873 
1875 {
1876  return 0;
1877 }
1878 
1880 {
1881 }
1882 
1883 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1884 {
1885 }
1886 
1887 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
1888 {
1889 }
1890 
1891 #endif
1892 
1894 {
1895  return !!s->internal;
1896 }
1897 
1898 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
1899 {
1900  int ret;
1901  char *str;
1902 
1903  ret = av_bprint_finalize(buf, &str);
1904  if (ret < 0)
1905  return ret;
1906  if (!av_bprint_is_complete(buf)) {
1907  av_free(str);
1908  return AVERROR(ENOMEM);
1909  }
1910 
1911  avctx->extradata = str;
1912  /* Note: the string is NUL terminated (so extradata can be read as a
1913  * string), but the ending character is not accounted in the size (in
1914  * binary formats you are likely not supposed to mux that character). When
1915  * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
1916  * zeros. */
1917  avctx->extradata_size = buf->len;
1918  return 0;
1919 }
1920 
1921 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
1922  const uint8_t *end,
1923  uint32_t *av_restrict state)
1924 {
1925  int i;
1926 
1927  av_assert0(p <= end);
1928  if (p >= end)
1929  return end;
1930 
1931  for (i = 0; i < 3; i++) {
1932  uint32_t tmp = *state << 8;
1933  *state = tmp + *(p++);
1934  if (tmp == 0x100 || p == end)
1935  return p;
1936  }
1937 
1938  while (p < end) {
1939  if (p[-1] > 1 ) p += 3;
1940  else if (p[-2] ) p += 2;
1941  else if (p[-3]|(p[-1]-1)) p++;
1942  else {
1943  p++;
1944  break;
1945  }
1946  }
1947 
1948  p = FFMIN(p, end) - 4;
1949  *state = AV_RB32(p);
1950 
1951  return p + 4;
1952 }
1953 
1955 {
1956  AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
1957  if (!props)
1958  return NULL;
1959 
1960  if (size)
1961  *size = sizeof(*props);
1962 
1963  props->vbv_delay = UINT64_MAX;
1964 
1965  return props;
1966 }
1967 
1969 {
1971  AVCPBProperties *props;
1972  size_t size;
1973 
1974  props = av_cpb_properties_alloc(&size);
1975  if (!props)
1976  return NULL;
1977 
1978  tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
1979  if (!tmp) {
1980  av_freep(&props);
1981  return NULL;
1982  }
1983 
1984  avctx->coded_side_data = tmp;
1985  avctx->nb_coded_side_data++;
1986 
1988  avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
1989  avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
1990 
1991  return props;
1992 }
1993 
1995 {
1996  av_freep(&par->extradata);
1997 
1998  memset(par, 0, sizeof(*par));
1999 
2001  par->codec_id = AV_CODEC_ID_NONE;
2002  par->format = -1;
2009  par->sample_aspect_ratio = (AVRational){ 0, 1 };
2010  par->profile = FF_PROFILE_UNKNOWN;
2011  par->level = FF_LEVEL_UNKNOWN;
2012 }
2013 
2015 {
2016  AVCodecParameters *par = av_mallocz(sizeof(*par));
2017 
2018  if (!par)
2019  return NULL;
2021  return par;
2022 }
2023 
2025 {
2026  AVCodecParameters *par = *ppar;
2027 
2028  if (!par)
2029  return;
2031 
2032  av_freep(ppar);
2033 }
2034 
2036 {
2038  memcpy(dst, src, sizeof(*dst));
2039 
2040  dst->extradata = NULL;
2041  dst->extradata_size = 0;
2042  if (src->extradata) {
2044  if (!dst->extradata)
2045  return AVERROR(ENOMEM);
2046  memcpy(dst->extradata, src->extradata, src->extradata_size);
2047  dst->extradata_size = src->extradata_size;
2048  }
2049 
2050  return 0;
2051 }
2052 
2054  const AVCodecContext *codec)
2055 {
2057 
2058  par->codec_type = codec->codec_type;
2059  par->codec_id = codec->codec_id;
2060  par->codec_tag = codec->codec_tag;
2061 
2062  par->bit_rate = codec->bit_rate;
2065  par->profile = codec->profile;
2066  par->level = codec->level;
2067 
2068  switch (par->codec_type) {
2069  case AVMEDIA_TYPE_VIDEO:
2070  par->format = codec->pix_fmt;
2071  par->width = codec->width;
2072  par->height = codec->height;
2073  par->field_order = codec->field_order;
2074  par->color_range = codec->color_range;
2075  par->color_primaries = codec->color_primaries;
2076  par->color_trc = codec->color_trc;
2077  par->color_space = codec->colorspace;
2080  par->video_delay = codec->has_b_frames;
2081  break;
2082  case AVMEDIA_TYPE_AUDIO:
2083  par->format = codec->sample_fmt;
2084  par->channel_layout = codec->channel_layout;
2085  par->channels = codec->channels;
2086  par->sample_rate = codec->sample_rate;
2087  par->block_align = codec->block_align;
2088  par->frame_size = codec->frame_size;
2089  par->initial_padding = codec->initial_padding;
2090  par->trailing_padding = codec->trailing_padding;
2091  par->seek_preroll = codec->seek_preroll;
2092  break;
2093  case AVMEDIA_TYPE_SUBTITLE:
2094  par->width = codec->width;
2095  par->height = codec->height;
2096  break;
2097  }
2098 
2099  if (codec->extradata) {
2101  if (!par->extradata)
2102  return AVERROR(ENOMEM);
2103  memcpy(par->extradata, codec->extradata, codec->extradata_size);
2104  par->extradata_size = codec->extradata_size;
2105  }
2106 
2107  return 0;
2108 }
2109 
2111  const AVCodecParameters *par)
2112 {
2113  codec->codec_type = par->codec_type;
2114  codec->codec_id = par->codec_id;
2115  codec->codec_tag = par->codec_tag;
2116 
2117  codec->bit_rate = par->bit_rate;
2120  codec->profile = par->profile;
2121  codec->level = par->level;
2122 
2123  switch (par->codec_type) {
2124  case AVMEDIA_TYPE_VIDEO:
2125  codec->pix_fmt = par->format;
2126  codec->width = par->width;
2127  codec->height = par->height;
2128  codec->field_order = par->field_order;
2129  codec->color_range = par->color_range;
2130  codec->color_primaries = par->color_primaries;
2131  codec->color_trc = par->color_trc;
2132  codec->colorspace = par->color_space;
2135  codec->has_b_frames = par->video_delay;
2136  break;
2137  case AVMEDIA_TYPE_AUDIO:
2138  codec->sample_fmt = par->format;
2139  codec->channel_layout = par->channel_layout;
2140  codec->channels = par->channels;
2141  codec->sample_rate = par->sample_rate;
2142  codec->block_align = par->block_align;
2143  codec->frame_size = par->frame_size;
2144  codec->delay =
2145  codec->initial_padding = par->initial_padding;
2146  codec->trailing_padding = par->trailing_padding;
2147  codec->seek_preroll = par->seek_preroll;
2148  break;
2149  case AVMEDIA_TYPE_SUBTITLE:
2150  codec->width = par->width;
2151  codec->height = par->height;
2152  break;
2153  }
2154 
2155  if (par->extradata) {
2156  av_freep(&codec->extradata);
2158  if (!codec->extradata)
2159  return AVERROR(ENOMEM);
2160  memcpy(codec->extradata, par->extradata, par->extradata_size);
2161  codec->extradata_size = par->extradata_size;
2162  }
2163 
2164  return 0;
2165 }
2166 
2167 int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
2168  void **data, size_t *sei_size)
2169 {
2170  AVFrameSideData *side_data = NULL;
2171  uint8_t *sei_data;
2172 
2173  if (frame)
2174  side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
2175 
2176  if (!side_data) {
2177  *data = NULL;
2178  return 0;
2179  }
2180 
2181  *sei_size = side_data->size + 11;
2182  *data = av_mallocz(*sei_size + prefix_len);
2183  if (!*data)
2184  return AVERROR(ENOMEM);
2185  sei_data = (uint8_t*)*data + prefix_len;
2186 
2187  // country code
2188  sei_data[0] = 181;
2189  sei_data[1] = 0;
2190  sei_data[2] = 49;
2191 
2192  /**
2193  * 'GA94' is standard in North America for ATSC, but hard coding
2194  * this style may not be the right thing to do -- other formats
2195  * do exist. This information is not available in the side_data
2196  * so we are going with this right now.
2197  */
2198  AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
2199  sei_data[7] = 3;
2200  sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
2201  sei_data[9] = 0;
2202 
2203  memcpy(sei_data + 10, side_data->data, side_data->size);
2204 
2205  sei_data[side_data->size+10] = 255;
2206 
2207  return 0;
2208 }
2209 
2211 {
2212  AVRational framerate = avctx->framerate;
2213  int bits_per_coded_sample = avctx->bits_per_coded_sample;
2214  int64_t bitrate;
2215 
2216  if (!(framerate.num && framerate.den))
2217  framerate = av_inv_q(avctx->time_base);
2218  if (!(framerate.num && framerate.den))
2219  return 0;
2220 
2221  if (!bits_per_coded_sample) {
2223  bits_per_coded_sample = av_get_bits_per_pixel(desc);
2224  }
2225  bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2226  framerate.num / framerate.den;
2227 
2228  return bitrate;
2229 }
2230 
2231 int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
2232  const int * array_valid_values, int default_value)
2233 {
2234  int i = 0, ref_val;
2235 
2236  while (1) {
2237  ref_val = array_valid_values[i];
2238  if (ref_val == INT_MAX)
2239  break;
2240  if (val == ref_val)
2241  return val;
2242  i++;
2243  }
2244  /* val is not a valid value */
2245  av_log(ctx, AV_LOG_DEBUG,
2246  "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
2247  return default_value;
2248 }
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:2210
#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:2636
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:4058
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:3166
#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:1370
const struct AVCodec * codec
Definition: avcodec.h:1577
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:3108
const char const char void * val
Definition: avisynth_c.h:863
enum AVFieldOrder field_order
Video only.
Definition: avcodec.h:4049
static int64_t get_bit_rate(AVCodecContext *ctx)
Definition: utils.c:500
const AVCodecDescriptor * codec_descriptor
AVCodecDescriptor.
Definition: avcodec.h:3129
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:4056
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:3165
static AVMutex mutex
Definition: log.c:44
int64_t pts_correction_num_faulty_dts
Number of incorrect PTS values so far.
Definition: avcodec.h:3146
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:889
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:3633
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:1756
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:1618
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:4044
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:2474
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:1328
const char * avcodec_configuration(void)
Return the libavcodec build-time configuration.
Definition: utils.c:1434
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:2203
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:3968
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:3164
static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
Definition: utils.c:524
const char * avcodec_license(void)
Return the libavcodec license.
Definition: utils.c:1439
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:1947
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:1778
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:3948
int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec)
Definition: utils.c:496
void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
Same behaviour av_fast_malloc but the buffer has additional AV_INPUT_BUFFER_PADDING_SIZE at the end w...
Definition: utils.c:70
planar GBR 4:4:4 36bpp, little-endian
Definition: pixfmt.h:255
The following 12 formats have the disadvantage of needing 1 format for each bit depth.
Definition: pixfmt.h:156
#define AV_CODEC_CAP_EXPERIMENTAL
Codec is experimental and is thus avoided in favor of non experimental encoders.
Definition: avcodec.h:1032
mpegvideo header.
enum AVMediaType type
Definition: avcodec.h:3505
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:2799
enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
Wrapper around get_format() for frame-multithreaded codecs.
Definition: utils.c:1840
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:1802
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:1052
const struct AVHWAccel * hwaccel
Hardware accelerator in use.
Definition: avcodec.h:2732
int trailing_padding
Audio only.
Definition: avcodec.h:4104
#define src
Definition: vp8dsp.c:254
int profile
profile
Definition: avcodec.h:2901
planar GBR 4:4:4 36bpp, big-endian
Definition: pixfmt.h:254
AVCodec.
Definition: avcodec.h:3492
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:2265
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:3960
AVLockOp
Lock operation used by lockmgr.
Definition: avcodec.h:6140
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:3932
enum AVColorSpace color_space
Definition: avcodec.h:4057
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:2057
int frame_size
Audio only.
Definition: avcodec.h:4089
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:1691
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:3949
int av_codec_is_decoder(const AVCodec *codec)
Definition: utils.c:99
int(* uninit)(AVCodecContext *avctx)
Uninitialize the hwaccel private data.
Definition: avcodec.h:3798
void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
Definition: utils.c:1883
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:1173
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:3022
#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:139
#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:2236
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:4034
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:2014
#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:3287
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:3231
#define LIBAVCODEC_VERSION_INT
Definition: version.h:34
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1669
#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:2110
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:1968
Public header for CRC hash function implementation.
void * frame_thread_encoder
Definition: internal.h:180
int initial_padding
Audio only.
Definition: avcodec.h:4097
Structure to hold side data for an AVFrame.
Definition: frame.h:201
int av_image_check_sar(unsigned int w, unsigned int h, AVRational sar)
Check if the given sample aspect ratio of an image is valid.
Definition: imgutils.c:287
int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Call avcodec_open2 recursively by decrementing counter, unlocking mutex, calling the function and the...
Definition: utils.c:536
planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), big-endian
Definition: pixfmt.h:276
planar GBR 4:4:4 48bpp, big-endian
Definition: pixfmt.h:174
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:100
uint32_t tag
Definition: movenc.c:1531
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:194
void av_memcpy_backptr(uint8_t *dst, int back, int cnt)
Overlapping memcpy() implementation.
Definition: mem.c:426
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
uint8_t * data
Definition: avcodec.h:1424
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:1546
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
Definition: avcodec.h:2807
int av_codec_get_max_lowres(const AVCodec *codec)
Definition: utils.c:490
enum AVSampleFormat av_get_planar_sample_fmt(enum AVSampleFormat sample_fmt)
Get the planar alternative form of the given sample format.
Definition: samplefmt.c:84
int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
Return the index into tab at which {a,b} match elements {[0],[1]} of tab.
Definition: utils.c:1772
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:2792
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:886
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:1954
enum AVChromaLocation chroma_sample_location
This defines the location of chroma samples.
Definition: avcodec.h:2210
static void codec_parameters_reset(AVCodecParameters *par)
Definition: utils.c:1994
#define FFALIGN(x, a)
Definition: macros.h:48
uint64_t channel_layout
Audio only.
Definition: avcodec.h:4070
#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:3997
#define FF_COMPLIANCE_UNOFFICIAL
Allow unofficial extensions.
Definition: avcodec.h:2635
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:1796
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:1095
enum AVCodecID id
Definition: avcodec.h:3506
const uint64_t * channel_layouts
array of support channel layouts, or NULL if unknown. array is terminated by 0
Definition: avcodec.h:3516
planar GBR 4:4:4 27bpp, big-endian
Definition: pixfmt.h:170
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:165
const char * av_chroma_location_name(enum AVChromaLocation location)
Definition: pixdesc.c:2939
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:176
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: avcodec.h:215
unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
Definition: utils.c:485
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Copy the contents of src to dst.
Definition: utils.c:2035
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:1858
int av_get_bits_per_sample(enum AVCodecID codec_id)
Return codec bits per sample.
Definition: utils.c:1528
#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:2231
#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:1808
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:3600
int qmax
maximum quantizer
Definition: avcodec.h:2417
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:3147
int active_thread_type
Which multithreading methods are in use by the codec.
Definition: avcodec.h:2846
enum AVColorPrimaries color_primaries
Definition: avcodec.h:4055
int avcodec_is_open(AVCodecContext *s)
Definition: utils.c:1893
int video_delay
Video only.
Definition: avcodec.h:4063
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:447
AVFrame * buffer_frame
Definition: internal.h:202
int capabilities
Codec capabilities.
Definition: avcodec.h:3511
int initial_padding
Audio only.
Definition: avcodec.h:3099
#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:1751
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:566
#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:3964
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:1648
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:1426
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:3499
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:3295
const struct AVProfile * profiles
If non-NULL, an array of profiles recognized for this codec.
Definition: avcodec.h:746
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:2024
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:1741
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:3276
uint64_t channel_layout
Audio channel layout.
Definition: avcodec.h:2279
int extradata_size
Size of the extradata content in bytes.
Definition: avcodec.h:3986
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:2431
int props
Codec properties, a combination of AV_CODEC_PROP_* flags.
Definition: avcodec.h:735
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:2156
planar GBR 4:4:4:4 48bpp, big-endian
Definition: pixfmt.h:287
int block_align
Audio only.
Definition: avcodec.h:4085
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:3513
#define FF_THREAD_FRAME
Decode more than one frame at once.
Definition: avcodec.h:2838
#define FFMIN(a, b)
Definition: common.h:96
AVPacketSideData * coded_side_data
Additional data associated with the entire coded stream.
Definition: avcodec.h:3240
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:1445
AVFrame * compat_decode_frame
Definition: internal.h:213
void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
Definition: utils.c:1887
int width
picture width / height.
Definition: avcodec.h:1741
static void ff_unlock_avcodec(const AVCodec *codec)
Definition: utils.c:530
AVBufferRef * hw_frames_ctx
A reference to the AVHWFramesContext describing the input (for encoding) or output (decoding) frames...
Definition: avcodec.h:3265
#define FF_PROFILE_UNKNOWN
Definition: avcodec.h:2902
int priv_data_size
Definition: avcodec.h:3540
int profile
Definition: avcodec.h:3426
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:874
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:2182
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:3021
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:1857
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:3519
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:1700
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:4054
Usually treated as AVMEDIA_TYPE_DATA.
Definition: avutil.h:200
Opaque data information usually sparse.
Definition: avutil.h:205
const char * av_get_colorspace_name(enum AVColorSpace val)
Get the name of a colorspace.
Definition: frame.c:122
DecodeSimpleContext ds
Definition: internal.h:165
enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags, unsigned int fourcc)
Definition: utils.c:467
char * sub_charenc
DTS of the last frame.
Definition: avcodec.h:3155
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:3927
#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:1161
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:2827
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:523
int sub_charenc_mode
Subtitles character encoding mode.
Definition: avcodec.h:3163
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:1396
int frame_size
Number of samples per channel in an audio frame.
Definition: avcodec.h:2248
This structure describes the bitrate properties of an encoded bitstream.
Definition: avcodec.h:1131
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:2214
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:1791
Libavcodec external API header.
enum AVMediaType codec_type
Definition: avcodec.h:1576
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:1506
enum AVCodecID codec_id
Definition: avcodec.h:1578
int seek_preroll
Number of samples to skip after a discontinuity.
Definition: avcodec.h:3188
int av_opt_set_dict(void *obj, AVDictionary **options)
Set all the options from a given dictionary on an object.
Definition: opt.c:1626
int sample_rate
samples per second
Definition: avcodec.h:2228
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
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/(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64,*(const int64_t *) pi *(1.0/(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(const float *) pi *(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(const double *) pi *(UINT64_C(1)<< 63)))#define FMT_PAIR_FUNC(out, in) static conv_func_type *const fmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB *AV_SAMPLE_FMT_NB]={FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64),};static void cpy1(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, len);}static void cpy2(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 2 *len);}static void cpy4(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 4 *len);}static void cpy8(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 8 *len);}AudioConvert *swri_audio_convert_alloc(enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, const int *ch_map, int flags){AudioConvert *ctx;conv_func_type *f=fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt)+AV_SAMPLE_FMT_NB *av_get_packed_sample_fmt(in_fmt)];if(!f) return NULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) return NULL;if(channels==1){in_fmt=av_get_planar_sample_fmt(in_fmt);out_fmt=av_get_planar_sample_fmt(out_fmt);}ctx->channels=channels;ctx->conv_f=f;ctx->ch_map=ch_map;if(in_fmt==AV_SAMPLE_FMT_U8||in_fmt==AV_SAMPLE_FMT_U8P) memset(ctx->silence, 0x80, sizeof(ctx->silence));if(out_fmt==in_fmt &&!ch_map){switch(av_get_bytes_per_sample(in_fmt)){case 1:ctx->simd_f=cpy1;break;case 2:ctx->simd_f=cpy2;break;case 4:ctx->simd_f=cpy4;break;case 8:ctx->simd_f=cpy8;break;}}if(HAVE_X86ASM &&1) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);return ctx;}void swri_audio_convert_free(AudioConvert **ctx){av_freep(ctx);}int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len){int ch;int off=0;const int os=(out->planar?1:out->ch_count)*out->bps;unsigned misaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask){int planes=in->planar?in->ch_count:1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;}if(ctx->out_simd_align_mask){int planes=out->planar?out->ch_count:1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;}if(ctx->simd_f &&!ctx->ch_map &&!misaligned){off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){if(out->planar==in->planar){int planes=out->planar?out->ch_count:1;for(ch=0;ch< planes;ch++){ctx->simd_f(out-> ch const uint8_t **in ch off *out planar
Definition: audioconvert.c:56
const AVCodecHWConfig * avcodec_get_hw_config(const AVCodec *codec, int index)
Retrieve supported hardware configurations for a codec.
Definition: utils.c:1779
planar GBR 4:4:4 30bpp, big-endian
Definition: pixfmt.h:172
main external API structure.
Definition: avcodec.h:1568
int(* receive_frame)(AVCodecContext *avctx, AVFrame *frame)
Decode API with decoupled packet/frame dataflow.
Definition: avcodec.h:3608
AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
Definition: allcodecs.c:894
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:2410
void avsubtitle_free(AVSubtitle *sub)
Free all allocated data in the given subtitle struct.
Definition: utils.c:1076
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:1593
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:1968
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:778
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:1670
int(* close)(AVCodecContext *)
Definition: avcodec.h:3591
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
Encode extradata length to a buffer.
Definition: utils.c:1758
int nb_coded_side_data
Definition: avcodec.h:3241
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:1756
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:3232
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:2196
Rational number (pair of numerator and denominator).
Definition: rational.h:58
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:2189
void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
Wrapper around release_buffer() frame-for multithreaded codecs.
Definition: utils.c:1851
const char * name
short name for the profile
Definition: avcodec.h:3427
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:2053
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:3223
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:727
int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Initialize the AVCodecContext to use the given AVCodec.
Definition: utils.c:548
#define snprintf
Definition: snprintf.h:34
int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
Return audio frame duration.
Definition: utils.c:1732
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
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/(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64,*(const int64_t *) pi *(1.0/(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(const float *) pi *(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(const double *) pi *(UINT64_C(1)<< 63)))#define FMT_PAIR_FUNC(out, in) static conv_func_type *const fmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB *AV_SAMPLE_FMT_NB]={FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64),};static void cpy1(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, len);}static void cpy2(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 2 *len);}static void cpy4(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 4 *len);}static void cpy8(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 8 *len);}AudioConvert *swri_audio_convert_alloc(enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, const int *ch_map, int flags){AudioConvert *ctx;conv_func_type *f=fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt)+AV_SAMPLE_FMT_NB *av_get_packed_sample_fmt(in_fmt)];if(!f) return NULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) return NULL;if(channels==1){in_fmt=av_get_planar_sample_fmt(in_fmt);out_fmt=av_get_planar_sample_fmt(out_fmt);}ctx->channels=channels;ctx->conv_f=f;ctx->ch_map=ch_map;if(in_fmt==AV_SAMPLE_FMT_U8||in_fmt==AV_SAMPLE_FMT_U8P) memset(ctx->silence, 0x80, sizeof(ctx->silence));if(out_fmt==in_fmt &&!ch_map){switch(av_get_bytes_per_sample(in_fmt)){case 1:ctx->simd_f=cpy1;break;case 2:ctx->simd_f=cpy2;break;case 4:ctx->simd_f=cpy4;break;case 8:ctx->simd_f=cpy8;break;}}if(HAVE_X86ASM &&1) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);return ctx;}void swri_audio_convert_free(AudioConvert **ctx){av_freep(ctx);}int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len){int ch;int off=0;const int os=(out->planar?1:out->ch_count)*out->bps;unsigned misaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask){int planes=in->planar?in->ch_count:1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;}if(ctx->out_simd_align_mask){int planes=out->planar?out->ch_count:1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;}if(ctx->simd_f &&!ctx->ch_map &&!misaligned){off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){if(out->planar==in->planar){int planes=out->planar?out->ch_count:1;for(ch=0;ch< planes;ch++){ctx->simd_f(out-> ch ch
Definition: audioconvert.c:56
mfxU16 profile
Definition: qsvenc.c:44
int seek_preroll
Audio only.
Definition: avcodec.h:4108
This struct describes the properties of a single codec described by an AVCodecID. ...
Definition: avcodec.h:719
int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
Finalize buf into extradata and set its size appropriately.
Definition: utils.c:1898
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:4023
const AVClass * priv_class
AVClass for the private context.
Definition: avcodec.h:3518
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:4078
enum AVMediaType type
Definition: avcodec.h:721
uint8_t max_lowres
maximum value for lowres supported by the decoder
Definition: avcodec.h:3517
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:1581
const OptionDef options[]
Definition: ffmpeg_opt.c:3366
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:84
int(* decode)(AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt)
Definition: avcodec.h:3590
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:3575
int profile
Codec-specific bitstream restrictions that the stream conforms to.
Definition: avcodec.h:4028
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:3576
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
AVProfile.
Definition: avcodec.h:3425
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:1869
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:2818
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:1861
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:3618
unsigned properties
Properties of the stream that gets decoded.
Definition: avcodec.h:3230
int den
Denominator.
Definition: rational.h:60
int avcodec_default_execute2(AVCodecContext *c, int(*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
Definition: utils.c:454
int av_image_check_size2(unsigned int w, unsigned int h, int64_t max_pixels, enum AVPixelFormat pix_fmt, int log_offset, void *log_ctx)
Check if the given dimension of an image is valid, meaning that all bytes of a plane of an image with...
Definition: imgutils.c:253
unsigned bps
Definition: movenc.c:1532
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:793
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
Definition: utils.c:1201
#define AV_CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:878
static int lowres
Definition: ffplay.c:335
void * priv_data
Definition: avcodec.h:1595
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:1181
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:3215
#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:3588
#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:583
int len
int channels
number of audio channels
Definition: avcodec.h:2229
const int * supported_samplerates
array of supported audio samplerates, or NULL if unknown, array is terminated by 0 ...
Definition: avcodec.h:3514
struct AVCodecInternal * internal
Private context used for internal data.
Definition: avcodec.h:1603
unsigned avcodec_version(void)
Return the LIBAVCODEC_VERSION_INT constant.
Definition: utils.c:1424
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:3939
This side data corresponds to the AVCPBProperties struct.
Definition: avcodec.h:1292
static struct @316 state
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:550
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:4010
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: avcodec.h:3982
static const struct twinvq_data tab
unsigned int byte_buffer_size
Definition: internal.h:178
int channels
Audio only.
Definition: avcodec.h:4074
void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
Wait for earlier decoding threads to finish reference pictures.
Definition: utils.c:1865
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:3148
int frame_number
Frame counter, set by libavcodec.
Definition: avcodec.h:2259
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:3145
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:2225
signed 16 bits, planar
Definition: samplefmt.h:67
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:542
int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
Definition: utils.c:1816
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:3515
AVMatrixEncoding
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
Definition: utils.c:1845
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
Definition: avcodec.h:3972
int ff_alloc_entries(AVCodecContext *avctx, int count)
Definition: utils.c:1874
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:2167
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:1921
void ff_reset_entries(AVCodecContext *avctx)
Definition: utils.c:1879
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:3317
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:1409
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:1724
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:2631
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:3115
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:246
#define FFMAX3(a, b, c)
Definition: common.h:95
planar GBR 4:4:4 30bpp, little-endian
Definition: pixfmt.h:173
int avcodec_default_execute(AVCodecContext *c, int(*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
Definition: utils.c:441
#define AV_WL32(p, v)
Definition: intreadwrite.h:426
int64_t rc_max_rate
maximum bitrate
Definition: avcodec.h:2446
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:3053
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