FFmpeg  4.3
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 "hwconfig.h"
48 #include "libavutil/opt.h"
49 #include "mpegvideo.h"
50 #include "thread.h"
51 #include "frame_thread_encoder.h"
52 #include "internal.h"
53 #include "raw.h"
54 #include "bytestream.h"
55 #include "version.h"
56 #include <stdlib.h>
57 #include <stdarg.h>
58 #include <stdatomic.h>
59 #include <limits.h>
60 #include <float.h>
61 #if CONFIG_ICONV
62 # include <iconv.h>
63 #endif
64 
65 #include "libavutil/ffversion.h"
66 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
67 
69 
70 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
71 {
72  uint8_t **p = ptr;
73  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
74  av_freep(p);
75  *size = 0;
76  return;
77  }
78  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
79  memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
80 }
81 
82 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
83 {
84  uint8_t **p = ptr;
85  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
86  av_freep(p);
87  *size = 0;
88  return;
89  }
90  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
91  memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
92 }
93 
94 int av_codec_is_encoder(const AVCodec *codec)
95 {
96  return codec && (codec->encode_sub || codec->encode2 ||codec->send_frame);
97 }
98 
99 int av_codec_is_decoder(const AVCodec *codec)
100 {
101  return codec && (codec->decode || codec->receive_frame);
102 }
103 
105 {
106  int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
107 
108  if (ret < 0)
109  width = height = 0;
110 
111  s->coded_width = width;
112  s->coded_height = height;
113  s->width = AV_CEIL_RSHIFT(width, s->lowres);
114  s->height = AV_CEIL_RSHIFT(height, s->lowres);
115 
116  return ret;
117 }
118 
120 {
121  int ret = av_image_check_sar(avctx->width, avctx->height, sar);
122 
123  if (ret < 0) {
124  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
125  sar.num, sar.den);
126  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
127  return ret;
128  } else {
129  avctx->sample_aspect_ratio = sar;
130  }
131  return 0;
132 }
133 
135  enum AVMatrixEncoding matrix_encoding)
136 {
137  AVFrameSideData *side_data;
138  enum AVMatrixEncoding *data;
139 
141  if (!side_data)
143  sizeof(enum AVMatrixEncoding));
144 
145  if (!side_data)
146  return AVERROR(ENOMEM);
147 
148  data = (enum AVMatrixEncoding*)side_data->data;
149  *data = matrix_encoding;
150 
151  return 0;
152 }
153 
155  int linesize_align[AV_NUM_DATA_POINTERS])
156 {
157  int i;
158  int w_align = 1;
159  int h_align = 1;
161 
162  if (desc) {
163  w_align = 1 << desc->log2_chroma_w;
164  h_align = 1 << desc->log2_chroma_h;
165  }
166 
167  switch (s->pix_fmt) {
168  case AV_PIX_FMT_YUV420P:
169  case AV_PIX_FMT_YUYV422:
170  case AV_PIX_FMT_YVYU422:
171  case AV_PIX_FMT_UYVY422:
172  case AV_PIX_FMT_YUV422P:
173  case AV_PIX_FMT_YUV440P:
174  case AV_PIX_FMT_YUV444P:
175  case AV_PIX_FMT_GBRP:
176  case AV_PIX_FMT_GBRAP:
177  case AV_PIX_FMT_GRAY8:
178  case AV_PIX_FMT_GRAY16BE:
179  case AV_PIX_FMT_GRAY16LE:
180  case AV_PIX_FMT_YUVJ420P:
181  case AV_PIX_FMT_YUVJ422P:
182  case AV_PIX_FMT_YUVJ440P:
183  case AV_PIX_FMT_YUVJ444P:
184  case AV_PIX_FMT_YUVA420P:
185  case AV_PIX_FMT_YUVA422P:
186  case AV_PIX_FMT_YUVA444P:
243  case AV_PIX_FMT_GBRP9LE:
244  case AV_PIX_FMT_GBRP9BE:
245  case AV_PIX_FMT_GBRP10LE:
246  case AV_PIX_FMT_GBRP10BE:
247  case AV_PIX_FMT_GBRP12LE:
248  case AV_PIX_FMT_GBRP12BE:
249  case AV_PIX_FMT_GBRP14LE:
250  case AV_PIX_FMT_GBRP14BE:
251  case AV_PIX_FMT_GBRP16LE:
252  case AV_PIX_FMT_GBRP16BE:
257  w_align = 16; //FIXME assume 16 pixel per macroblock
258  h_align = 16 * 2; // interlaced needs 2 macroblocks height
259  break;
260  case AV_PIX_FMT_YUV411P:
261  case AV_PIX_FMT_YUVJ411P:
263  w_align = 32;
264  h_align = 16 * 2;
265  break;
266  case AV_PIX_FMT_YUV410P:
267  if (s->codec_id == AV_CODEC_ID_SVQ1) {
268  w_align = 64;
269  h_align = 64;
270  }
271  break;
272  case AV_PIX_FMT_RGB555:
273  if (s->codec_id == AV_CODEC_ID_RPZA) {
274  w_align = 4;
275  h_align = 4;
276  }
278  w_align = 8;
279  h_align = 8;
280  }
281  break;
282  case AV_PIX_FMT_PAL8:
283  case AV_PIX_FMT_BGR8:
284  case AV_PIX_FMT_RGB8:
285  if (s->codec_id == AV_CODEC_ID_SMC ||
287  w_align = 4;
288  h_align = 4;
289  }
290  if (s->codec_id == AV_CODEC_ID_JV ||
292  w_align = 8;
293  h_align = 8;
294  }
295  break;
296  case AV_PIX_FMT_BGR24:
297  if ((s->codec_id == AV_CODEC_ID_MSZH) ||
298  (s->codec_id == AV_CODEC_ID_ZLIB)) {
299  w_align = 4;
300  h_align = 4;
301  }
302  break;
303  case AV_PIX_FMT_RGB24:
304  if (s->codec_id == AV_CODEC_ID_CINEPAK) {
305  w_align = 4;
306  h_align = 4;
307  }
308  break;
309  default:
310  break;
311  }
312 
313  if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
314  w_align = FFMAX(w_align, 8);
315  }
316 
317  *width = FFALIGN(*width, w_align);
318  *height = FFALIGN(*height, h_align);
319  if (s->codec_id == AV_CODEC_ID_H264 || s->lowres ||
322  ) {
323  // some of the optimized chroma MC reads one line too much
324  // which is also done in mpeg decoders with lowres > 0
325  *height += 2;
326 
327  // H.264 uses edge emulation for out of frame motion vectors, for this
328  // it requires a temporary area large enough to hold a 21x21 block,
329  // increasing witdth ensure that the temporary area is large enough,
330  // the next rounded up width is 32
331  *width = FFMAX(*width, 32);
332  }
333 
334  for (i = 0; i < 4; i++)
335  linesize_align[i] = STRIDE_ALIGN;
336 }
337 
339 {
341  int chroma_shift = desc->log2_chroma_w;
342  int linesize_align[AV_NUM_DATA_POINTERS];
343  int align;
344 
345  avcodec_align_dimensions2(s, width, height, linesize_align);
346  align = FFMAX(linesize_align[0], linesize_align[3]);
347  linesize_align[1] <<= chroma_shift;
348  linesize_align[2] <<= chroma_shift;
349  align = FFMAX3(align, linesize_align[1], linesize_align[2]);
350  *width = FFALIGN(*width, align);
351 }
352 
353 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
354 {
355  if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
356  return AVERROR(EINVAL);
357  pos--;
358 
359  *xpos = (pos&1) * 128;
360  *ypos = ((pos>>1)^(pos<4)) * 128;
361 
362  return 0;
363 }
364 
366 {
367  int pos, xout, yout;
368 
369  for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
370  if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
371  return pos;
372  }
374 }
375 
377  enum AVSampleFormat sample_fmt, const uint8_t *buf,
378  int buf_size, int align)
379 {
380  int ch, planar, needed_size, ret = 0;
381 
382  needed_size = av_samples_get_buffer_size(NULL, nb_channels,
383  frame->nb_samples, sample_fmt,
384  align);
385  if (buf_size < needed_size)
386  return AVERROR(EINVAL);
387 
388  planar = av_sample_fmt_is_planar(sample_fmt);
389  if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
390  if (!(frame->extended_data = av_mallocz_array(nb_channels,
391  sizeof(*frame->extended_data))))
392  return AVERROR(ENOMEM);
393  } else {
394  frame->extended_data = frame->data;
395  }
396 
397  if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
398  (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
399  sample_fmt, align)) < 0) {
400  if (frame->extended_data != frame->data)
401  av_freep(&frame->extended_data);
402  return ret;
403  }
404  if (frame->extended_data != frame->data) {
405  for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
406  frame->data[ch] = frame->extended_data[ch];
407  }
408 
409  return ret;
410 }
411 
412 void ff_color_frame(AVFrame *frame, const int c[4])
413 {
415  int p, y;
416 
418 
419  for (p = 0; p<desc->nb_components; p++) {
420  uint8_t *dst = frame->data[p];
421  int is_chroma = p == 1 || p == 2;
422  int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
423  int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
424  if (desc->comp[0].depth >= 9) {
425  ((uint16_t*)dst)[0] = c[p];
426  av_memcpy_backptr(dst + 2, 2, bytes - 2);
427  dst += frame->linesize[p];
428  for (y = 1; y < height; y++) {
429  memcpy(dst, frame->data[p], 2*bytes);
430  dst += frame->linesize[p];
431  }
432  } else {
433  for (y = 0; y < height; y++) {
434  memset(dst, c[p], bytes);
435  dst += frame->linesize[p];
436  }
437  }
438  }
439 }
440 
441 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
442 {
443  int i;
444 
445  for (i = 0; i < count; i++) {
446  int r = func(c, (char *)arg + i * size);
447  if (ret)
448  ret[i] = r;
449  }
450  emms_c();
451  return 0;
452 }
453 
454 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
455 {
456  int i;
457 
458  for (i = 0; i < count; i++) {
459  int r = func(c, arg, i, 0);
460  if (ret)
461  ret[i] = r;
462  }
463  emms_c();
464  return 0;
465 }
466 
468  unsigned int fourcc)
469 {
470  while (tags->pix_fmt >= 0) {
471  if (tags->fourcc == fourcc)
472  return tags->pix_fmt;
473  tags++;
474  }
475  return AV_PIX_FMT_NONE;
476 }
477 
478 #if FF_API_CODEC_GET_SET
479 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
480 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
482 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
483 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
484 
486 {
487  return codec->properties;
488 }
489 
491 {
492  return codec->max_lowres;
493 }
494 #endif
495 
498 }
499 
501 {
502  int64_t bit_rate;
503  int bits_per_sample;
504 
505  switch (ctx->codec_type) {
506  case AVMEDIA_TYPE_VIDEO:
507  case AVMEDIA_TYPE_DATA:
510  bit_rate = ctx->bit_rate;
511  break;
512  case AVMEDIA_TYPE_AUDIO:
513  bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
514  bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
515  break;
516  default:
517  bit_rate = 0;
518  break;
519  }
520  return bit_rate;
521 }
522 
523 
524 static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
525 {
526  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
528 }
529 
530 static void ff_unlock_avcodec(const AVCodec *codec)
531 {
532  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
534 }
535 
537 {
538  int ret = 0;
539 
540  ff_unlock_avcodec(codec);
541 
542  ret = avcodec_open2(avctx, codec, options);
543 
544  ff_lock_avcodec(avctx, codec);
545  return ret;
546 }
547 
549 {
550  int ret = 0;
551  int codec_init_ok = 0;
552  AVDictionary *tmp = NULL;
553  const AVPixFmtDescriptor *pixdesc;
554  AVCodecInternal *avci;
555 
556  if (avcodec_is_open(avctx))
557  return 0;
558 
559  if (!codec && !avctx->codec) {
560  av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
561  return AVERROR(EINVAL);
562  }
563  if (codec && avctx->codec && codec != avctx->codec) {
564  av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
565  "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
566  return AVERROR(EINVAL);
567  }
568  if (!codec)
569  codec = avctx->codec;
570 
571  if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
572  return AVERROR(EINVAL);
573 
574  if (options)
575  av_dict_copy(&tmp, *options, 0);
576 
577  ff_lock_avcodec(avctx, codec);
578 
579  avci = av_mallocz(sizeof(*avci));
580  if (!avci) {
581  ret = AVERROR(ENOMEM);
582  goto end;
583  }
584  avctx->internal = avci;
585 
586  avci->to_free = av_frame_alloc();
588  avci->buffer_frame = av_frame_alloc();
589  avci->buffer_pkt = av_packet_alloc();
590  avci->ds.in_pkt = av_packet_alloc();
592  if (!avci->to_free || !avci->compat_decode_frame ||
593  !avci->buffer_frame || !avci->buffer_pkt ||
594  !avci->ds.in_pkt || !avci->last_pkt_props) {
595  ret = AVERROR(ENOMEM);
596  goto free_and_end;
597  }
598 
599  avci->skip_samples_multiplier = 1;
600 
601  if (codec->priv_data_size > 0) {
602  if (!avctx->priv_data) {
603  avctx->priv_data = av_mallocz(codec->priv_data_size);
604  if (!avctx->priv_data) {
605  ret = AVERROR(ENOMEM);
606  goto end;
607  }
608  if (codec->priv_class) {
609  *(const AVClass **)avctx->priv_data = codec->priv_class;
611  }
612  }
613  if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
614  goto free_and_end;
615  } else {
616  avctx->priv_data = NULL;
617  }
618  if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
619  goto free_and_end;
620 
621  if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
622  av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
623  ret = AVERROR(EINVAL);
624  goto free_and_end;
625  }
626 
627  // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
628  if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
629  (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
630  if (avctx->coded_width && avctx->coded_height)
631  ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
632  else if (avctx->width && avctx->height)
633  ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
634  if (ret < 0)
635  goto free_and_end;
636  }
637 
638  if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
639  && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
640  || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
641  av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
642  ff_set_dimensions(avctx, 0, 0);
643  }
644 
645  if (avctx->width > 0 && avctx->height > 0) {
646  if (av_image_check_sar(avctx->width, avctx->height,
647  avctx->sample_aspect_ratio) < 0) {
648  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
649  avctx->sample_aspect_ratio.num,
650  avctx->sample_aspect_ratio.den);
651  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
652  }
653  }
654 
655  /* if the decoder init function was already called previously,
656  * free the already allocated subtitle_header before overwriting it */
657  if (av_codec_is_decoder(codec))
658  av_freep(&avctx->subtitle_header);
659 
660  if (avctx->channels > FF_SANE_NB_CHANNELS || avctx->channels < 0) {
661  av_log(avctx, AV_LOG_ERROR, "Too many or invalid channels: %d\n", avctx->channels);
662  ret = AVERROR(EINVAL);
663  goto free_and_end;
664  }
665  if (avctx->sample_rate < 0) {
666  av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate);
667  ret = AVERROR(EINVAL);
668  goto free_and_end;
669  }
670  if (avctx->block_align < 0) {
671  av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align);
672  ret = AVERROR(EINVAL);
673  goto free_and_end;
674  }
675 
676  avctx->codec = codec;
677  if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
678  avctx->codec_id == AV_CODEC_ID_NONE) {
679  avctx->codec_type = codec->type;
680  avctx->codec_id = codec->id;
681  }
682  if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
683  && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
684  av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
685  ret = AVERROR(EINVAL);
686  goto free_and_end;
687  }
688  avctx->frame_number = 0;
690 
691  if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
693  const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
694  AVCodec *codec2;
695  av_log(avctx, AV_LOG_ERROR,
696  "The %s '%s' is experimental but experimental codecs are not enabled, "
697  "add '-strict %d' if you want to use it.\n",
698  codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
699  codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
700  if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
701  av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
702  codec_string, codec2->name);
703  ret = AVERROR_EXPERIMENTAL;
704  goto free_and_end;
705  }
706 
707  if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
708  (!avctx->time_base.num || !avctx->time_base.den)) {
709  avctx->time_base.num = 1;
710  avctx->time_base.den = avctx->sample_rate;
711  }
712 
713  if (!HAVE_THREADS)
714  av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
715 
717  ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
718  ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
719  ff_lock_avcodec(avctx, codec);
720  if (ret < 0)
721  goto free_and_end;
722  }
723 
724  if (av_codec_is_decoder(avctx->codec)) {
725  ret = ff_decode_bsfs_init(avctx);
726  if (ret < 0)
727  goto free_and_end;
728  }
729 
730  if (HAVE_THREADS
731  && !(avci->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
732  ret = ff_thread_init(avctx);
733  if (ret < 0) {
734  goto free_and_end;
735  }
736  }
738  avctx->thread_count = 1;
739 
740  if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
741  av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
742  avctx->codec->max_lowres);
743  avctx->lowres = avctx->codec->max_lowres;
744  }
745 
746  if (av_codec_is_encoder(avctx->codec)) {
747  int i;
748 #if FF_API_CODED_FRAME
750  avctx->coded_frame = av_frame_alloc();
751  if (!avctx->coded_frame) {
752  ret = AVERROR(ENOMEM);
753  goto free_and_end;
754  }
756 #endif
757 
758  if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
759  av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
760  ret = AVERROR(EINVAL);
761  goto free_and_end;
762  }
763 
764  if (avctx->codec->sample_fmts) {
765  for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
766  if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
767  break;
768  if (avctx->channels == 1 &&
771  avctx->sample_fmt = avctx->codec->sample_fmts[i];
772  break;
773  }
774  }
775  if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
776  char buf[128];
777  snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
778  av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
779  (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
780  ret = AVERROR(EINVAL);
781  goto free_and_end;
782  }
783  }
784  if (avctx->codec->pix_fmts) {
785  for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
786  if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
787  break;
788  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
789  && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
791  char buf[128];
792  snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
793  av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
794  (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
795  ret = AVERROR(EINVAL);
796  goto free_and_end;
797  }
798  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
799  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
800  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
801  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
802  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
803  avctx->color_range = AVCOL_RANGE_JPEG;
804  }
805  if (avctx->codec->supported_samplerates) {
806  for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
807  if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
808  break;
809  if (avctx->codec->supported_samplerates[i] == 0) {
810  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
811  avctx->sample_rate);
812  ret = AVERROR(EINVAL);
813  goto free_and_end;
814  }
815  }
816  if (avctx->sample_rate < 0) {
817  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
818  avctx->sample_rate);
819  ret = AVERROR(EINVAL);
820  goto free_and_end;
821  }
822  if (avctx->codec->channel_layouts) {
823  if (!avctx->channel_layout) {
824  av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
825  } else {
826  for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
827  if (avctx->channel_layout == avctx->codec->channel_layouts[i])
828  break;
829  if (avctx->codec->channel_layouts[i] == 0) {
830  char buf[512];
831  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
832  av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
833  ret = AVERROR(EINVAL);
834  goto free_and_end;
835  }
836  }
837  }
838  if (avctx->channel_layout && avctx->channels) {
840  if (channels != avctx->channels) {
841  char buf[512];
842  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
843  av_log(avctx, AV_LOG_ERROR,
844  "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
845  buf, channels, avctx->channels);
846  ret = AVERROR(EINVAL);
847  goto free_and_end;
848  }
849  } else if (avctx->channel_layout) {
851  }
852  if (avctx->channels < 0) {
853  av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
854  avctx->channels);
855  ret = AVERROR(EINVAL);
856  goto free_and_end;
857  }
858  if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
859  pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
860  if ( avctx->bits_per_raw_sample < 0
861  || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
862  av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
863  avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
864  avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
865  }
866  if (avctx->width <= 0 || avctx->height <= 0) {
867  av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
868  ret = AVERROR(EINVAL);
869  goto free_and_end;
870  }
871  }
872  if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
873  && avctx->bit_rate>0 && avctx->bit_rate<1000) {
874  av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
875  }
876 
877  if (!avctx->rc_initial_buffer_occupancy)
878  avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
879 
880  if (avctx->ticks_per_frame && avctx->time_base.num &&
881  avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
882  av_log(avctx, AV_LOG_ERROR,
883  "ticks_per_frame %d too large for the timebase %d/%d.",
884  avctx->ticks_per_frame,
885  avctx->time_base.num,
886  avctx->time_base.den);
887  goto free_and_end;
888  }
889 
890  if (avctx->hw_frames_ctx) {
891  AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
892  if (frames_ctx->format != avctx->pix_fmt) {
893  av_log(avctx, AV_LOG_ERROR,
894  "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
895  ret = AVERROR(EINVAL);
896  goto free_and_end;
897  }
898  if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
899  avctx->sw_pix_fmt != frames_ctx->sw_format) {
900  av_log(avctx, AV_LOG_ERROR,
901  "Mismatching AVCodecContext.sw_pix_fmt (%s) "
902  "and AVHWFramesContext.sw_format (%s)\n",
904  av_get_pix_fmt_name(frames_ctx->sw_format));
905  ret = AVERROR(EINVAL);
906  goto free_and_end;
907  }
908  avctx->sw_pix_fmt = frames_ctx->sw_format;
909  }
910  }
911 
914  avctx->pts_correction_last_pts =
915  avctx->pts_correction_last_dts = INT64_MIN;
916 
917  if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
919  av_log(avctx, AV_LOG_WARNING,
920  "gray decoding requested but not enabled at configuration time\n");
921  if (avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) {
923  }
924 
925  if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
926  || avci->frame_thread_encoder)) {
927  ret = avctx->codec->init(avctx);
928  if (ret < 0) {
929  goto free_and_end;
930  }
931  codec_init_ok = 1;
932  }
933 
934  ret=0;
935 
936  if (av_codec_is_decoder(avctx->codec)) {
937  if (!avctx->bit_rate)
938  avctx->bit_rate = get_bit_rate(avctx);
939  /* validate channel layout from the decoder */
940  if (avctx->channel_layout) {
942  if (!avctx->channels)
943  avctx->channels = channels;
944  else if (channels != avctx->channels) {
945  char buf[512];
946  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
947  av_log(avctx, AV_LOG_WARNING,
948  "Channel layout '%s' with %d channels does not match specified number of channels %d: "
949  "ignoring specified channel layout\n",
950  buf, channels, avctx->channels);
951  avctx->channel_layout = 0;
952  }
953  }
954  if (avctx->channels && avctx->channels < 0 ||
955  avctx->channels > FF_SANE_NB_CHANNELS) {
956  ret = AVERROR(EINVAL);
957  goto free_and_end;
958  }
959  if (avctx->bits_per_coded_sample < 0) {
960  ret = AVERROR(EINVAL);
961  goto free_and_end;
962  }
963  if (avctx->sub_charenc) {
964  if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
965  av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
966  "supported with subtitles codecs\n");
967  ret = AVERROR(EINVAL);
968  goto free_and_end;
969  } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
970  av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
971  "subtitles character encoding will be ignored\n",
972  avctx->codec_descriptor->name);
974  } else {
975  /* input character encoding is set for a text based subtitle
976  * codec at this point */
979 
981 #if CONFIG_ICONV
982  iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
983  if (cd == (iconv_t)-1) {
984  ret = AVERROR(errno);
985  av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
986  "with input character encoding \"%s\"\n", avctx->sub_charenc);
987  goto free_and_end;
988  }
989  iconv_close(cd);
990 #else
991  av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
992  "conversion needs a libavcodec built with iconv support "
993  "for this codec\n");
994  ret = AVERROR(ENOSYS);
995  goto free_and_end;
996 #endif
997  }
998  }
999  }
1000 
1001 #if FF_API_AVCTX_TIMEBASE
1002  if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1003  avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1004 #endif
1005  }
1006  if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1007  av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1008  }
1009 
1010 end:
1011  ff_unlock_avcodec(codec);
1012  if (options) {
1013  av_dict_free(options);
1014  *options = tmp;
1015  }
1016 
1017  return ret;
1018 free_and_end:
1019  if (avctx->codec && avctx->codec->close &&
1020  (codec_init_ok ||
1022  avctx->codec->close(avctx);
1023 
1024  if (HAVE_THREADS && avci->thread_ctx)
1025  ff_thread_free(avctx);
1026 
1027  if (codec->priv_class && codec->priv_data_size)
1028  av_opt_free(avctx->priv_data);
1029  av_opt_free(avctx);
1030 
1031 #if FF_API_CODED_FRAME
1033  av_frame_free(&avctx->coded_frame);
1035 #endif
1036 
1037  av_dict_free(&tmp);
1038  av_freep(&avctx->priv_data);
1039  av_freep(&avctx->subtitle_header);
1040  if (avci) {
1041  av_frame_free(&avci->to_free);
1043  av_frame_free(&avci->buffer_frame);
1044  av_packet_free(&avci->buffer_pkt);
1046 
1047  av_packet_free(&avci->ds.in_pkt);
1048  av_bsf_free(&avci->bsf);
1049 
1050  av_buffer_unref(&avci->pool);
1051  }
1052  av_freep(&avci);
1053  avctx->internal = NULL;
1054  avctx->codec = NULL;
1055  goto end;
1056 }
1057 
1059 {
1060  AVCodecInternal *avci = avctx->internal;
1061 
1062  if (av_codec_is_encoder(avctx->codec)) {
1063  int caps = avctx->codec->capabilities;
1064 
1065  if (!(caps & AV_CODEC_CAP_ENCODER_FLUSH)) {
1066  // Only encoders that explicitly declare support for it can be
1067  // flushed. Otherwise, this is a no-op.
1068  av_log(avctx, AV_LOG_WARNING, "Ignoring attempt to flush encoder "
1069  "that doesn't support it\n");
1070  return;
1071  }
1072 
1073  // We haven't implemented flushing for frame-threaded encoders.
1075  }
1076 
1077  avci->draining = 0;
1078  avci->draining_done = 0;
1079  avci->nb_draining_errors = 0;
1082  av_packet_unref(avci->buffer_pkt);
1083  avci->buffer_pkt_valid = 0;
1084 
1085  av_packet_unref(avci->ds.in_pkt);
1086 
1088  ff_thread_flush(avctx);
1089  else if (avctx->codec->flush)
1090  avctx->codec->flush(avctx);
1091 
1092  avctx->pts_correction_last_pts =
1093  avctx->pts_correction_last_dts = INT64_MIN;
1094 
1095  if (av_codec_is_decoder(avctx->codec))
1096  av_bsf_flush(avci->bsf);
1097 
1098  if (!avctx->refcounted_frames)
1099  av_frame_unref(avci->to_free);
1100 }
1101 
1103 {
1104  int i;
1105 
1106  for (i = 0; i < sub->num_rects; i++) {
1107  av_freep(&sub->rects[i]->data[0]);
1108  av_freep(&sub->rects[i]->data[1]);
1109  av_freep(&sub->rects[i]->data[2]);
1110  av_freep(&sub->rects[i]->data[3]);
1111  av_freep(&sub->rects[i]->text);
1112  av_freep(&sub->rects[i]->ass);
1113  av_freep(&sub->rects[i]);
1114  }
1115 
1116  av_freep(&sub->rects);
1117 
1118  memset(sub, 0, sizeof(*sub));
1119 }
1120 
1122 {
1123  int i;
1124 
1125  if (!avctx)
1126  return 0;
1127 
1128  if (avcodec_is_open(avctx)) {
1130  avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1132  }
1133  if (HAVE_THREADS && avctx->internal->thread_ctx)
1134  ff_thread_free(avctx);
1135  if (avctx->codec && avctx->codec->close)
1136  avctx->codec->close(avctx);
1137  avctx->internal->byte_buffer_size = 0;
1138  av_freep(&avctx->internal->byte_buffer);
1139  av_frame_free(&avctx->internal->to_free);
1144 
1145  av_packet_free(&avctx->internal->ds.in_pkt);
1146 
1147  av_buffer_unref(&avctx->internal->pool);
1148 
1149  if (avctx->hwaccel && avctx->hwaccel->uninit)
1150  avctx->hwaccel->uninit(avctx);
1152 
1153  av_bsf_free(&avctx->internal->bsf);
1154 
1155  av_freep(&avctx->internal);
1156  }
1157 
1158  for (i = 0; i < avctx->nb_coded_side_data; i++)
1159  av_freep(&avctx->coded_side_data[i].data);
1160  av_freep(&avctx->coded_side_data);
1161  avctx->nb_coded_side_data = 0;
1162 
1163  av_buffer_unref(&avctx->hw_frames_ctx);
1164  av_buffer_unref(&avctx->hw_device_ctx);
1165 
1166  if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1167  av_opt_free(avctx->priv_data);
1168  av_opt_free(avctx);
1169  av_freep(&avctx->priv_data);
1170  if (av_codec_is_encoder(avctx->codec)) {
1171  av_freep(&avctx->extradata);
1172 #if FF_API_CODED_FRAME
1174  av_frame_free(&avctx->coded_frame);
1176 #endif
1177  }
1178  avctx->codec = NULL;
1179  avctx->active_thread_type = 0;
1180 
1181  return 0;
1182 }
1183 
1184 const char *avcodec_get_name(enum AVCodecID id)
1185 {
1186  const AVCodecDescriptor *cd;
1187  AVCodec *codec;
1188 
1189  if (id == AV_CODEC_ID_NONE)
1190  return "none";
1191  cd = avcodec_descriptor_get(id);
1192  if (cd)
1193  return cd->name;
1194  av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1195  codec = avcodec_find_decoder(id);
1196  if (codec)
1197  return codec->name;
1198  codec = avcodec_find_encoder(id);
1199  if (codec)
1200  return codec->name;
1201  return "unknown_codec";
1202 }
1203 
1204 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1205 {
1206  int i, len, ret = 0;
1207 
1208 #define TAG_PRINT(x) \
1209  (((x) >= '0' && (x) <= '9') || \
1210  ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1211  ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
1212 
1213  for (i = 0; i < 4; i++) {
1214  len = snprintf(buf, buf_size,
1215  TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1216  buf += len;
1217  buf_size = buf_size > len ? buf_size - len : 0;
1218  ret += len;
1219  codec_tag >>= 8;
1220  }
1221  return ret;
1222 }
1223 
1224 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1225 {
1226  const char *codec_type;
1227  const char *codec_name;
1228  const char *profile = NULL;
1229  int64_t bitrate;
1230  int new_line = 0;
1231  AVRational display_aspect_ratio;
1232  const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1233 
1234  if (!buf || buf_size <= 0)
1235  return;
1236  codec_type = av_get_media_type_string(enc->codec_type);
1237  codec_name = avcodec_get_name(enc->codec_id);
1238  profile = avcodec_profile_name(enc->codec_id, enc->profile);
1239 
1240  snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1241  codec_name);
1242  buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1243 
1244  if (enc->codec && strcmp(enc->codec->name, codec_name))
1245  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1246 
1247  if (profile)
1248  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1249  if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1251  && enc->refs)
1252  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1253  ", %d reference frame%s",
1254  enc->refs, enc->refs > 1 ? "s" : "");
1255 
1256  if (enc->codec_tag)
1257  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1258  av_fourcc2str(enc->codec_tag), enc->codec_tag);
1259 
1260  switch (enc->codec_type) {
1261  case AVMEDIA_TYPE_VIDEO:
1262  {
1263  char detail[256] = "(";
1264 
1265  av_strlcat(buf, separator, buf_size);
1266 
1267  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1268  "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1270  if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1272  av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1274  av_strlcatf(detail, sizeof(detail), "%s, ",
1276 
1277  if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1279  enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1280  if (enc->colorspace != (int)enc->color_primaries ||
1281  enc->colorspace != (int)enc->color_trc) {
1282  new_line = 1;
1283  av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1287  } else
1288  av_strlcatf(detail, sizeof(detail), "%s, ",
1290  }
1291 
1292  if (enc->field_order != AV_FIELD_UNKNOWN) {
1293  const char *field_order = "progressive";
1294  if (enc->field_order == AV_FIELD_TT)
1295  field_order = "top first";
1296  else if (enc->field_order == AV_FIELD_BB)
1297  field_order = "bottom first";
1298  else if (enc->field_order == AV_FIELD_TB)
1299  field_order = "top coded first (swapped)";
1300  else if (enc->field_order == AV_FIELD_BT)
1301  field_order = "bottom coded first (swapped)";
1302 
1303  av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1304  }
1305 
1306  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1308  av_strlcatf(detail, sizeof(detail), "%s, ",
1310 
1311  if (strlen(detail) > 1) {
1312  detail[strlen(detail) - 2] = 0;
1313  av_strlcatf(buf, buf_size, "%s)", detail);
1314  }
1315  }
1316 
1317  if (enc->width) {
1318  av_strlcat(buf, new_line ? separator : ", ", buf_size);
1319 
1320  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1321  "%dx%d",
1322  enc->width, enc->height);
1323 
1324  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1325  (enc->width != enc->coded_width ||
1326  enc->height != enc->coded_height))
1327  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1328  " (%dx%d)", enc->coded_width, enc->coded_height);
1329 
1330  if (enc->sample_aspect_ratio.num) {
1331  av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1332  enc->width * (int64_t)enc->sample_aspect_ratio.num,
1333  enc->height * (int64_t)enc->sample_aspect_ratio.den,
1334  1024 * 1024);
1335  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1336  " [SAR %d:%d DAR %d:%d]",
1338  display_aspect_ratio.num, display_aspect_ratio.den);
1339  }
1340  if (av_log_get_level() >= AV_LOG_DEBUG) {
1341  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1342  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1343  ", %d/%d",
1344  enc->time_base.num / g, enc->time_base.den / g);
1345  }
1346  }
1347  if (encode) {
1348  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1349  ", q=%d-%d", enc->qmin, enc->qmax);
1350  } else {
1352  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1353  ", Closed Captions");
1355  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1356  ", lossless");
1357  }
1358  break;
1359  case AVMEDIA_TYPE_AUDIO:
1360  av_strlcat(buf, separator, buf_size);
1361 
1362  if (enc->sample_rate) {
1363  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1364  "%d Hz, ", enc->sample_rate);
1365  }
1366  av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1367  if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1368  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1369  ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1370  }
1371  if ( enc->bits_per_raw_sample > 0
1373  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1374  " (%d bit)", enc->bits_per_raw_sample);
1375  if (av_log_get_level() >= AV_LOG_VERBOSE) {
1376  if (enc->initial_padding)
1377  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1378  ", delay %d", enc->initial_padding);
1379  if (enc->trailing_padding)
1380  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1381  ", padding %d", enc->trailing_padding);
1382  }
1383  break;
1384  case AVMEDIA_TYPE_DATA:
1385  if (av_log_get_level() >= AV_LOG_DEBUG) {
1386  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1387  if (g)
1388  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1389  ", %d/%d",
1390  enc->time_base.num / g, enc->time_base.den / g);
1391  }
1392  break;
1393  case AVMEDIA_TYPE_SUBTITLE:
1394  if (enc->width)
1395  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1396  ", %dx%d", enc->width, enc->height);
1397  break;
1398  default:
1399  return;
1400  }
1401  if (encode) {
1402  if (enc->flags & AV_CODEC_FLAG_PASS1)
1403  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1404  ", pass 1");
1405  if (enc->flags & AV_CODEC_FLAG_PASS2)
1406  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1407  ", pass 2");
1408  }
1409  bitrate = get_bit_rate(enc);
1410  if (bitrate != 0) {
1411  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1412  ", %"PRId64" kb/s", bitrate / 1000);
1413  } else if (enc->rc_max_rate > 0) {
1414  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1415  ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1416  }
1417 }
1418 
1419 const char *av_get_profile_name(const AVCodec *codec, int profile)
1420 {
1421  const AVProfile *p;
1422  if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1423  return NULL;
1424 
1425  for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1426  if (p->profile == profile)
1427  return p->name;
1428 
1429  return NULL;
1430 }
1431 
1433 {
1434  const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1435  const AVProfile *p;
1436 
1437  if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1438  return NULL;
1439 
1440  for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1441  if (p->profile == profile)
1442  return p->name;
1443 
1444  return NULL;
1445 }
1446 
1447 unsigned avcodec_version(void)
1448 {
1451  av_assert0(AV_CODEC_ID_SRT==94216);
1453 
1454  return LIBAVCODEC_VERSION_INT;
1455 }
1456 
1457 const char *avcodec_configuration(void)
1458 {
1459  return FFMPEG_CONFIGURATION;
1460 }
1461 
1462 const char *avcodec_license(void)
1463 {
1464 #define LICENSE_PREFIX "libavcodec license: "
1465  return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
1466 }
1467 
1469 {
1470  switch (codec_id) {
1471  case AV_CODEC_ID_8SVX_EXP:
1472  case AV_CODEC_ID_8SVX_FIB:
1473  case AV_CODEC_ID_ADPCM_CT:
1482  return 4;
1483  case AV_CODEC_ID_DSD_LSBF:
1484  case AV_CODEC_ID_DSD_MSBF:
1487  case AV_CODEC_ID_PCM_ALAW:
1488  case AV_CODEC_ID_PCM_MULAW:
1489  case AV_CODEC_ID_PCM_VIDC:
1490  case AV_CODEC_ID_PCM_S8:
1492  case AV_CODEC_ID_PCM_U8:
1493  case AV_CODEC_ID_SDX2_DPCM:
1494  case AV_CODEC_ID_DERF_DPCM:
1495  return 8;
1496  case AV_CODEC_ID_PCM_S16BE:
1498  case AV_CODEC_ID_PCM_S16LE:
1500  case AV_CODEC_ID_PCM_U16BE:
1501  case AV_CODEC_ID_PCM_U16LE:
1502  return 16;
1504  case AV_CODEC_ID_PCM_S24BE:
1505  case AV_CODEC_ID_PCM_S24LE:
1507  case AV_CODEC_ID_PCM_U24BE:
1508  case AV_CODEC_ID_PCM_U24LE:
1509  return 24;
1510  case AV_CODEC_ID_PCM_S32BE:
1511  case AV_CODEC_ID_PCM_S32LE:
1513  case AV_CODEC_ID_PCM_U32BE:
1514  case AV_CODEC_ID_PCM_U32LE:
1515  case AV_CODEC_ID_PCM_F32BE:
1516  case AV_CODEC_ID_PCM_F32LE:
1517  case AV_CODEC_ID_PCM_F24LE:
1518  case AV_CODEC_ID_PCM_F16LE:
1519  return 32;
1520  case AV_CODEC_ID_PCM_F64BE:
1521  case AV_CODEC_ID_PCM_F64LE:
1522  case AV_CODEC_ID_PCM_S64BE:
1523  case AV_CODEC_ID_PCM_S64LE:
1524  return 64;
1525  default:
1526  return 0;
1527  }
1528 }
1529 
1531 {
1532  static const enum AVCodecID map[][2] = {
1538  [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1539  [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1540  [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1542  [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1543  [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1544  };
1545  if (fmt < 0 || fmt >= FF_ARRAY_ELEMS(map))
1546  return AV_CODEC_ID_NONE;
1547  if (be < 0 || be > 1)
1548  be = AV_NE(1, 0);
1549  return map[fmt][be];
1550 }
1551 
1553 {
1554  switch (codec_id) {
1556  return 2;
1558  return 3;
1562  case AV_CODEC_ID_ADPCM_SWF:
1563  case AV_CODEC_ID_ADPCM_MS:
1564  return 4;
1565  default:
1566  return av_get_exact_bits_per_sample(codec_id);
1567  }
1568 }
1569 
1570 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1571  uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1572  uint8_t * extradata, int frame_size, int frame_bytes)
1573 {
1575  int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1576 
1577  /* codecs with an exact constant bits per sample */
1578  if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1579  return (frame_bytes * 8LL) / (bps * ch);
1580  bps = bits_per_coded_sample;
1581 
1582  /* codecs with a fixed packet duration */
1583  switch (id) {
1584  case AV_CODEC_ID_ADPCM_ADX: return 32;
1585  case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1586  case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1587  case AV_CODEC_ID_AMR_NB:
1588  case AV_CODEC_ID_EVRC:
1589  case AV_CODEC_ID_GSM:
1590  case AV_CODEC_ID_QCELP:
1591  case AV_CODEC_ID_RA_288: return 160;
1592  case AV_CODEC_ID_AMR_WB:
1593  case AV_CODEC_ID_GSM_MS: return 320;
1594  case AV_CODEC_ID_MP1: return 384;
1595  case AV_CODEC_ID_ATRAC1: return 512;
1596  case AV_CODEC_ID_ATRAC9:
1597  case AV_CODEC_ID_ATRAC3: return 1024 * framecount;
1598  case AV_CODEC_ID_ATRAC3P: return 2048;
1599  case AV_CODEC_ID_MP2:
1600  case AV_CODEC_ID_MUSEPACK7: return 1152;
1601  case AV_CODEC_ID_AC3: return 1536;
1602  }
1603 
1604  if (sr > 0) {
1605  /* calc from sample rate */
1606  if (id == AV_CODEC_ID_TTA)
1607  return 256 * sr / 245;
1608  else if (id == AV_CODEC_ID_DST)
1609  return 588 * sr / 44100;
1610 
1611  if (ch > 0) {
1612  /* calc from sample rate and channels */
1613  if (id == AV_CODEC_ID_BINKAUDIO_DCT)
1614  return (480 << (sr / 22050)) / ch;
1615  }
1616 
1617  if (id == AV_CODEC_ID_MP3)
1618  return sr <= 24000 ? 576 : 1152;
1619  }
1620 
1621  if (ba > 0) {
1622  /* calc from block_align */
1623  if (id == AV_CODEC_ID_SIPR) {
1624  switch (ba) {
1625  case 20: return 160;
1626  case 19: return 144;
1627  case 29: return 288;
1628  case 37: return 480;
1629  }
1630  } else if (id == AV_CODEC_ID_ILBC) {
1631  switch (ba) {
1632  case 38: return 160;
1633  case 50: return 240;
1634  }
1635  }
1636  }
1637 
1638  if (frame_bytes > 0) {
1639  /* calc from frame_bytes only */
1640  if (id == AV_CODEC_ID_TRUESPEECH)
1641  return 240 * (frame_bytes / 32);
1642  if (id == AV_CODEC_ID_NELLYMOSER)
1643  return 256 * (frame_bytes / 64);
1644  if (id == AV_CODEC_ID_RA_144)
1645  return 160 * (frame_bytes / 20);
1646 
1647  if (bps > 0) {
1648  /* calc from frame_bytes and bits_per_coded_sample */
1650  return frame_bytes * 8 / bps;
1651  }
1652 
1653  if (ch > 0 && ch < INT_MAX/16) {
1654  /* calc from frame_bytes and channels */
1655  switch (id) {
1656  case AV_CODEC_ID_ADPCM_AFC:
1657  return frame_bytes / (9 * ch) * 16;
1658  case AV_CODEC_ID_ADPCM_PSX:
1659  case AV_CODEC_ID_ADPCM_DTK:
1660  return frame_bytes / (16 * ch) * 28;
1661  case AV_CODEC_ID_ADPCM_4XM:
1664  return (frame_bytes - 4 * ch) * 2 / ch;
1666  return (frame_bytes - 4) * 2 / ch;
1668  return (frame_bytes - 8) * 2 / ch;
1669  case AV_CODEC_ID_ADPCM_THP:
1671  if (extradata)
1672  return frame_bytes * 14 / (8 * ch);
1673  break;
1674  case AV_CODEC_ID_ADPCM_XA:
1675  return (frame_bytes / 128) * 224 / ch;
1677  return (frame_bytes - 6 - ch) / ch;
1678  case AV_CODEC_ID_ROQ_DPCM:
1679  return (frame_bytes - 8) / ch;
1680  case AV_CODEC_ID_XAN_DPCM:
1681  return (frame_bytes - 2 * ch) / ch;
1682  case AV_CODEC_ID_MACE3:
1683  return 3 * frame_bytes / ch;
1684  case AV_CODEC_ID_MACE6:
1685  return 6 * frame_bytes / ch;
1686  case AV_CODEC_ID_PCM_LXF:
1687  return 2 * (frame_bytes / (5 * ch));
1688  case AV_CODEC_ID_IAC:
1689  case AV_CODEC_ID_IMC:
1690  return 4 * frame_bytes / ch;
1691  }
1692 
1693  if (tag) {
1694  /* calc from frame_bytes, channels, and codec_tag */
1695  if (id == AV_CODEC_ID_SOL_DPCM) {
1696  if (tag == 3)
1697  return frame_bytes / ch;
1698  else
1699  return frame_bytes * 2 / ch;
1700  }
1701  }
1702 
1703  if (ba > 0) {
1704  /* calc from frame_bytes, channels, and block_align */
1705  int blocks = frame_bytes / ba;
1706  switch (id) {
1708  if (bps < 2 || bps > 5)
1709  return 0;
1710  return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1712  return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1714  return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1716  return blocks * ((ba - 4 * ch) * 2 / ch);
1717  case AV_CODEC_ID_ADPCM_MS:
1718  return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1720  return blocks * (ba - 16) * 2 / ch;
1721  }
1722  }
1723 
1724  if (bps > 0) {
1725  /* calc from frame_bytes, channels, and bits_per_coded_sample */
1726  switch (id) {
1727  case AV_CODEC_ID_PCM_DVD:
1728  if(bps<4 || frame_bytes<3)
1729  return 0;
1730  return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1732  if(bps<4 || frame_bytes<4)
1733  return 0;
1734  return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1735  case AV_CODEC_ID_S302M:
1736  return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1737  }
1738  }
1739  }
1740  }
1741 
1742  /* Fall back on using frame_size */
1743  if (frame_size > 1 && frame_bytes)
1744  return frame_size;
1745 
1746  //For WMA we currently have no other means to calculate duration thus we
1747  //do it here by assuming CBR, which is true for all known cases.
1748  if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1749  if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1750  return (frame_bytes * 8LL * sr) / bitrate;
1751  }
1752 
1753  return 0;
1754 }
1755 
1756 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1757 {
1758  return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1759  avctx->channels, avctx->block_align,
1760  avctx->codec_tag, avctx->bits_per_coded_sample,
1761  avctx->bit_rate, avctx->extradata, avctx->frame_size,
1762  frame_bytes);
1763 }
1764 
1766 {
1767  return get_audio_frame_duration(par->codec_id, par->sample_rate,
1768  par->channels, par->block_align,
1769  par->codec_tag, par->bits_per_coded_sample,
1770  par->bit_rate, par->extradata, par->frame_size,
1771  frame_bytes);
1772 }
1773 
1774 #if !HAVE_THREADS
1776 {
1777  return -1;
1778 }
1779 
1780 #endif
1781 
1782 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1783 {
1784  unsigned int n = 0;
1785 
1786  while (v >= 0xff) {
1787  *s++ = 0xff;
1788  v -= 0xff;
1789  n++;
1790  }
1791  *s = v;
1792  n++;
1793  return n;
1794 }
1795 
1796 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1797 {
1798  int i;
1799  for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1800  return i;
1801 }
1802 
1804 {
1805  int i;
1806  if (!codec->hw_configs || index < 0)
1807  return NULL;
1808  for (i = 0; i <= index; i++)
1809  if (!codec->hw_configs[i])
1810  return NULL;
1811  return &codec->hw_configs[index]->public;
1812 }
1813 
1814 #if FF_API_USER_VISIBLE_AVHWACCEL
1816 {
1817  return NULL;
1818 }
1819 
1821 {
1822 }
1823 #endif
1824 
1825 #if FF_API_LOCKMGR
1826 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1827 {
1828  return 0;
1829 }
1830 #endif
1831 
1832 unsigned int avpriv_toupper4(unsigned int x)
1833 {
1834  return av_toupper(x & 0xFF) +
1835  (av_toupper((x >> 8) & 0xFF) << 8) +
1836  (av_toupper((x >> 16) & 0xFF) << 16) +
1837 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1838 }
1839 
1841 {
1842  int ret;
1843 
1844  dst->owner[0] = src->owner[0];
1845  dst->owner[1] = src->owner[1];
1846 
1847  ret = av_frame_ref(dst->f, src->f);
1848  if (ret < 0)
1849  return ret;
1850 
1851  av_assert0(!dst->progress);
1852 
1853  if (src->progress &&
1854  !(dst->progress = av_buffer_ref(src->progress))) {
1855  ff_thread_release_buffer(dst->owner[0], dst);
1856  return AVERROR(ENOMEM);
1857  }
1858 
1859  return 0;
1860 }
1861 
1862 #if !HAVE_THREADS
1863 
1865 {
1866  return ff_get_format(avctx, fmt);
1867 }
1868 
1870 {
1871  f->owner[0] = f->owner[1] = avctx;
1872  return ff_get_buffer(avctx, f->f, flags);
1873 }
1874 
1876 {
1877  if (f->f)
1878  av_frame_unref(f->f);
1879 }
1880 
1882 {
1883 }
1884 
1885 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
1886 {
1887 }
1888 
1889 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1890 {
1891 }
1892 
1894 {
1895  return 1;
1896 }
1897 
1898 int ff_alloc_entries(AVCodecContext *avctx, int count)
1899 {
1900  return 0;
1901 }
1902 
1904 {
1905 }
1906 
1907 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1908 {
1909 }
1910 
1911 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
1912 {
1913 }
1914 
1915 #endif
1916 
1918 {
1919  return !!s->internal;
1920 }
1921 
1922 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
1923 {
1924  int ret;
1925  char *str;
1926 
1927  ret = av_bprint_finalize(buf, &str);
1928  if (ret < 0)
1929  return ret;
1930  if (!av_bprint_is_complete(buf)) {
1931  av_free(str);
1932  return AVERROR(ENOMEM);
1933  }
1934 
1935  avctx->extradata = str;
1936  /* Note: the string is NUL terminated (so extradata can be read as a
1937  * string), but the ending character is not accounted in the size (in
1938  * binary formats you are likely not supposed to mux that character). When
1939  * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
1940  * zeros. */
1941  avctx->extradata_size = buf->len;
1942  return 0;
1943 }
1944 
1946  const uint8_t *end,
1947  uint32_t *av_restrict state)
1948 {
1949  int i;
1950 
1951  av_assert0(p <= end);
1952  if (p >= end)
1953  return end;
1954 
1955  for (i = 0; i < 3; i++) {
1956  uint32_t tmp = *state << 8;
1957  *state = tmp + *(p++);
1958  if (tmp == 0x100 || p == end)
1959  return p;
1960  }
1961 
1962  while (p < end) {
1963  if (p[-1] > 1 ) p += 3;
1964  else if (p[-2] ) p += 2;
1965  else if (p[-3]|(p[-1]-1)) p++;
1966  else {
1967  p++;
1968  break;
1969  }
1970  }
1971 
1972  p = FFMIN(p, end) - 4;
1973  *state = AV_RB32(p);
1974 
1975  return p + 4;
1976 }
1977 
1979 {
1980  AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
1981  if (!props)
1982  return NULL;
1983 
1984  if (size)
1985  *size = sizeof(*props);
1986 
1987  props->vbv_delay = UINT64_MAX;
1988 
1989  return props;
1990 }
1991 
1993 {
1995  AVCPBProperties *props;
1996  size_t size;
1997  int i;
1998 
1999  for (i = 0; i < avctx->nb_coded_side_data; i++)
2001  return (AVCPBProperties *)avctx->coded_side_data[i].data;
2002 
2003  props = av_cpb_properties_alloc(&size);
2004  if (!props)
2005  return NULL;
2006 
2007  tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
2008  if (!tmp) {
2009  av_freep(&props);
2010  return NULL;
2011  }
2012 
2013  avctx->coded_side_data = tmp;
2014  avctx->nb_coded_side_data++;
2015 
2017  avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
2018  avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
2019 
2020  return props;
2021 }
2022 
2024 {
2025  av_freep(&par->extradata);
2026 
2027  memset(par, 0, sizeof(*par));
2028 
2030  par->codec_id = AV_CODEC_ID_NONE;
2031  par->format = -1;
2038  par->sample_aspect_ratio = (AVRational){ 0, 1 };
2039  par->profile = FF_PROFILE_UNKNOWN;
2040  par->level = FF_LEVEL_UNKNOWN;
2041 }
2042 
2044 {
2045  AVCodecParameters *par = av_mallocz(sizeof(*par));
2046 
2047  if (!par)
2048  return NULL;
2050  return par;
2051 }
2052 
2054 {
2055  AVCodecParameters *par = *ppar;
2056 
2057  if (!par)
2058  return;
2060 
2061  av_freep(ppar);
2062 }
2063 
2065 {
2067  memcpy(dst, src, sizeof(*dst));
2068 
2069  dst->extradata = NULL;
2070  dst->extradata_size = 0;
2071  if (src->extradata) {
2073  if (!dst->extradata)
2074  return AVERROR(ENOMEM);
2075  memcpy(dst->extradata, src->extradata, src->extradata_size);
2076  dst->extradata_size = src->extradata_size;
2077  }
2078 
2079  return 0;
2080 }
2081 
2083  const AVCodecContext *codec)
2084 {
2086 
2087  par->codec_type = codec->codec_type;
2088  par->codec_id = codec->codec_id;
2089  par->codec_tag = codec->codec_tag;
2090 
2091  par->bit_rate = codec->bit_rate;
2094  par->profile = codec->profile;
2095  par->level = codec->level;
2096 
2097  switch (par->codec_type) {
2098  case AVMEDIA_TYPE_VIDEO:
2099  par->format = codec->pix_fmt;
2100  par->width = codec->width;
2101  par->height = codec->height;
2102  par->field_order = codec->field_order;
2103  par->color_range = codec->color_range;
2104  par->color_primaries = codec->color_primaries;
2105  par->color_trc = codec->color_trc;
2106  par->color_space = codec->colorspace;
2109  par->video_delay = codec->has_b_frames;
2110  break;
2111  case AVMEDIA_TYPE_AUDIO:
2112  par->format = codec->sample_fmt;
2113  par->channel_layout = codec->channel_layout;
2114  par->channels = codec->channels;
2115  par->sample_rate = codec->sample_rate;
2116  par->block_align = codec->block_align;
2117  par->frame_size = codec->frame_size;
2118  par->initial_padding = codec->initial_padding;
2119  par->trailing_padding = codec->trailing_padding;
2120  par->seek_preroll = codec->seek_preroll;
2121  break;
2122  case AVMEDIA_TYPE_SUBTITLE:
2123  par->width = codec->width;
2124  par->height = codec->height;
2125  break;
2126  }
2127 
2128  if (codec->extradata) {
2130  if (!par->extradata)
2131  return AVERROR(ENOMEM);
2132  memcpy(par->extradata, codec->extradata, codec->extradata_size);
2133  par->extradata_size = codec->extradata_size;
2134  }
2135 
2136  return 0;
2137 }
2138 
2140  const AVCodecParameters *par)
2141 {
2142  codec->codec_type = par->codec_type;
2143  codec->codec_id = par->codec_id;
2144  codec->codec_tag = par->codec_tag;
2145 
2146  codec->bit_rate = par->bit_rate;
2149  codec->profile = par->profile;
2150  codec->level = par->level;
2151 
2152  switch (par->codec_type) {
2153  case AVMEDIA_TYPE_VIDEO:
2154  codec->pix_fmt = par->format;
2155  codec->width = par->width;
2156  codec->height = par->height;
2157  codec->field_order = par->field_order;
2158  codec->color_range = par->color_range;
2159  codec->color_primaries = par->color_primaries;
2160  codec->color_trc = par->color_trc;
2161  codec->colorspace = par->color_space;
2164  codec->has_b_frames = par->video_delay;
2165  break;
2166  case AVMEDIA_TYPE_AUDIO:
2167  codec->sample_fmt = par->format;
2168  codec->channel_layout = par->channel_layout;
2169  codec->channels = par->channels;
2170  codec->sample_rate = par->sample_rate;
2171  codec->block_align = par->block_align;
2172  codec->frame_size = par->frame_size;
2173  codec->delay =
2174  codec->initial_padding = par->initial_padding;
2175  codec->trailing_padding = par->trailing_padding;
2176  codec->seek_preroll = par->seek_preroll;
2177  break;
2178  case AVMEDIA_TYPE_SUBTITLE:
2179  codec->width = par->width;
2180  codec->height = par->height;
2181  break;
2182  }
2183 
2184  if (par->extradata) {
2185  av_freep(&codec->extradata);
2187  if (!codec->extradata)
2188  return AVERROR(ENOMEM);
2189  memcpy(codec->extradata, par->extradata, par->extradata_size);
2190  codec->extradata_size = par->extradata_size;
2191  }
2192 
2193  return 0;
2194 }
2195 
2196 int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
2197  void **data, size_t *sei_size)
2198 {
2199  AVFrameSideData *side_data = NULL;
2200  uint8_t *sei_data;
2201 
2202  if (frame)
2203  side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
2204 
2205  if (!side_data) {
2206  *data = NULL;
2207  return 0;
2208  }
2209 
2210  *sei_size = side_data->size + 11;
2211  *data = av_mallocz(*sei_size + prefix_len);
2212  if (!*data)
2213  return AVERROR(ENOMEM);
2214  sei_data = (uint8_t*)*data + prefix_len;
2215 
2216  // country code
2217  sei_data[0] = 181;
2218  sei_data[1] = 0;
2219  sei_data[2] = 49;
2220 
2221  /**
2222  * 'GA94' is standard in North America for ATSC, but hard coding
2223  * this style may not be the right thing to do -- other formats
2224  * do exist. This information is not available in the side_data
2225  * so we are going with this right now.
2226  */
2227  AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
2228  sei_data[7] = 3;
2229  sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
2230  sei_data[9] = 0;
2231 
2232  memcpy(sei_data + 10, side_data->data, side_data->size);
2233 
2234  sei_data[side_data->size+10] = 255;
2235 
2236  return 0;
2237 }
2238 
2240 {
2241  AVRational framerate = avctx->framerate;
2242  int bits_per_coded_sample = avctx->bits_per_coded_sample;
2243  int64_t bitrate;
2244 
2245  if (!(framerate.num && framerate.den))
2246  framerate = av_inv_q(avctx->time_base);
2247  if (!(framerate.num && framerate.den))
2248  return 0;
2249 
2250  if (!bits_per_coded_sample) {
2252  bits_per_coded_sample = av_get_bits_per_pixel(desc);
2253  }
2254  bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2255  framerate.num / framerate.den;
2256 
2257  return bitrate;
2258 }
2259 
2260 int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
2261  const int * array_valid_values, int default_value)
2262 {
2263  int i = 0, ref_val;
2264 
2265  while (1) {
2266  ref_val = array_valid_values[i];
2267  if (ref_val == INT_MAX)
2268  break;
2269  if (val == ref_val)
2270  return val;
2271  i++;
2272  }
2273  /* val is not a valid value */
2274  av_log(ctx, AV_LOG_DEBUG,
2275  "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
2276  return default_value;
2277 }
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:2239
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
Definition: internal.h:48
#define FF_SANE_NB_CHANNELS
Definition: internal.h:97
#define FF_COMPLIANCE_EXPERIMENTAL
Allow nonstandardized experimental things.
Definition: avcodec.h:1594
packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
Definition: pixfmt.h:81
AVCodecHWConfig public
This is the structure which will be returned to the user by avcodec_get_hw_config().
Definition: hwconfig.h:34
#define CONFIG_FRAME_THREAD_ENCODER
Definition: config.h:631
int nb_draining_errors
Definition: internal.h:190
enum AVChromaLocation chroma_location
Definition: codec_par.h:150
float, planar
Definition: samplefmt.h:69
#define FF_SUB_CHARENC_MODE_PRE_DECODER
the AVPacket data needs to be recoded to UTF-8 before being fed to the decoder, requires iconv ...
Definition: avcodec.h:2127
#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:1279
const struct AVCodec * codec
Definition: avcodec.h:535
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:2069
enum AVFieldOrder field_order
Video only.
Definition: codec_par.h:141
static int64_t get_bit_rate(AVCodecContext *ctx)
Definition: utils.c:500
const AVCodecDescriptor * codec_descriptor
AVCodecDescriptor.
Definition: avcodec.h:2090
planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
Definition: pixfmt.h:275
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:252
enum AVColorTransferCharacteristic color_trc
Definition: codec_par.h:148
#define AV_NUM_DATA_POINTERS
Definition: frame.h:301
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:2126
static AVMutex mutex
Definition: log.c:44
static struct @314 state
int64_t pts_correction_num_faulty_dts
Number of incorrect PTS values so far.
Definition: avcodec.h:2107
void av_buffer_unref(AVBufferRef **buf)
Free a given reference and automatically free the buffer if there are no more references to it...
Definition: buffer.c:125
int size
unsigned int fourcc
Definition: raw.h:36
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2549
This structure describes decoded (raw) audio or video data.
Definition: frame.h:300
if(ret< 0)
Definition: vf_mcdeint.c:279
int av_codec_is_encoder(const AVCodec *codec)
Definition: utils.c:94
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: codec.h:325
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Copy the contents of src to dst.
Definition: utils.c:2064
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:714
AVPacket * last_pkt_props
Properties (timestamps+side data) extracted from the last packet passed for decoding.
Definition: internal.h:144
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:576
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:131
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:79
#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:2501
int(* receive_frame)(struct AVCodecContext *avctx, struct AVFrame *frame)
Decode API with decoupled packet/frame dataflow.
Definition: codec.h:300
AVRational sample_aspect_ratio
Video only.
Definition: codec_par.h:136
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:1432
void(* flush)(struct AVCodecContext *)
Flush buffers.
Definition: codec.h:305
#define AV_CODEC_CAP_ENCODER_FLUSH
This encoder can be flushed using avcodec_flush_buffers().
Definition: codec.h:171
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:250
void av_opt_set_defaults(void *s)
Set the values of all AVOption fields to their default values.
Definition: opt.c:1357
const char * avcodec_configuration(void)
Return the libavcodec build-time configuration.
Definition: utils.c:1457
uint32_t fourcc
Definition: vaapi_decode.c:239
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:1161
int ff_decode_bsfs_init(AVCodecContext *avctx)
Called during avcodec_open2() to initialize avctx->internal->bsf.
Definition: decode.c:204
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: codec_par.h:60
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
int num
Numerator.
Definition: rational.h:59
static int ff_mutex_lock(AVMutex *mutex)
Definition: thread.h:168
#define FF_SUB_CHARENC_MODE_DO_NOTHING
do nothing (demuxer outputs a stream supposed to be already in UTF-8, or the codec is bitmap for inst...
Definition: avcodec.h:2125
static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
Definition: utils.c:524
const char * b
Definition: vf_curves.c:116
int av_codec_is_decoder(const AVCodec *codec)
Definition: utils.c:99
const char * avcodec_license(void)
Return the libavcodec license.
Definition: utils.c:1462
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:905
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition: pixfmt.h:189
double, planar
Definition: samplefmt.h:70
enum AVMediaType codec_type
Definition: rtp.c:37
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:736
enum AVPixelFormat pix_fmt
Definition: raw.h:35
int av_dict_copy(AVDictionary **dst, const AVDictionary *src, int flags)
Copy entries from one AVDictionary struct into another.
Definition: dict.c:217
enum AVPixelFormat format
The pixel format identifying the underlying HW surface type.
Definition: hwcontext.h:209
unsigned num_rects
Definition: avcodec.h:2698
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: codec.h:98
mpegvideo header.
enum AVMediaType type
Definition: codec.h:203
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 &&HAVE_MMX) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);return ctx;} void swri_audio_convert_free(AudioConvert **ctx) { av_freep(ctx);} int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len) { int ch;int off=0;const int os=(out->planar ? 1 :out->ch_count) *out->bps;unsigned misaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask) { int planes=in->planar ? in->ch_count :1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;} if(ctx->out_simd_align_mask) { int planes=out->planar ? out->ch_count :1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;} if(ctx->simd_f &&!ctx->ch_map &&!misaligned){ off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){ if(out->planar==in->planar){ int planes=out->planar ? out->ch_count :1;for(ch=0;ch< planes;ch++){ ctx->simd_f(out-> ch const uint8_t **in ch off *out planar
Definition: audioconvert.c:56
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:1757
enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
Wrapper around get_format() for frame-multithreaded codecs.
Definition: utils.c:1864
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:1826
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: codec.h:118
const struct AVHWAccel * hwaccel
Hardware accelerator in use.
Definition: avcodec.h:1690
void av_bsf_flush(AVBSFContext *ctx)
Reset the internal bitstream filter state / flush internal buffers.
Definition: bsf.c:185
int trailing_padding
Audio only.
Definition: codec_par.h:196
int profile
profile
Definition: avcodec.h:1859
planar GBR 4:4:4 36bpp, big-endian
Definition: pixfmt.h:254
AVCodec.
Definition: codec.h:190
planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:131
int framerate
Definition: h264_levels.c:65
int block_align
number of bytes per packet if constant and known or 0 Used by some WAV based audio codecs...
Definition: avcodec.h:1223
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
This struct describes the properties of an encoded stream.
Definition: codec_par.h:52
AVLockOp
Lock operation used by lockmgr.
Definition: avcodec.h:4084
int av_bprint_finalize(AVBPrint *buf, char **ret_str)
Finalize a print buffer.
Definition: bprint.c:235
int ff_set_dimensions(AVCodecContext *s, int width, int height)
Check that the provided frame dimensions are valid and set them on the codec context.
Definition: utils.c:104
#define FFMPEG_LICENSE
Definition: config.h:5
char * text
0 terminated plain UTF-8 text
Definition: avcodec.h:2682
enum AVColorSpace color_space
Definition: codec_par.h:149
const char * av_color_space_name(enum AVColorSpace space)
Definition: pixdesc.c:2942
Macro definitions for various function/variable attributes.
int frame_size
Audio only.
Definition: codec_par.h:181
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:649
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:739
AVSubtitleRect ** rects
Definition: avcodec.h:2699
int(* uninit)(AVCodecContext *avctx)
Uninitialize the hwaccel private data.
Definition: avcodec.h:2548
void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
Definition: utils.c:1907
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
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:490
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:1983
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
planar GBRA 4:4:4:4 64bpp, big-endian
Definition: pixfmt.h:216
Public dictionary API.
planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
Definition: pixfmt.h:190
static double cb(void *priv, double x, double y)
Definition: vf_geq.c:215
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
Definition: internal.h:40
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101
int export_side_data
Bit set of AV_CODEC_EXPORT_DATA_* flags, which affects the kind of metadata exported in frame...
Definition: avcodec.h:2354
void av_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
Definition: avpacket.c:64
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), 12b alpha, little-endian ...
Definition: pixfmt.h:344
enum AVSampleFormat sample_fmt
audio sample format
Definition: avcodec.h:1194
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_cold
Definition: attributes.h:88
AV_SAMPLE_FMT_U8
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:190
Opaque data information usually continuous.
Definition: avutil.h:203
int width
Video only.
Definition: codec_par.h:126
#define AV_CODEC_EXPORT_DATA_MVS
Export motion vectors through frame side data.
Definition: avcodec.h:403
8 bits with AV_PIX_FMT_RGB32 palette
Definition: pixfmt.h:77
AVOptions.
#define f(width, name)
Definition: cbs_vp9.c:255
const char * av_color_range_name(enum AVColorRange range)
Definition: pixdesc.c:2875
#define AV_RB32
Definition: intreadwrite.h:130
void * thread_ctx
Definition: internal.h:135
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
int ff_side_data_update_matrix_encoding(AVFrame *frame, enum AVMatrixEncoding matrix_encoding)
Add or update AV_FRAME_DATA_MATRIXENCODING side data.
Definition: utils.c:134
int trailing_padding
Audio only.
Definition: avcodec.h:2248
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:444
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:251
AVCodecParameters * avcodec_parameters_alloc(void)
Allocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0).
Definition: utils.c:2043
#define emms_c()
Definition: internal.h:55
#define FF_CODEC_PROPERTY_LOSSLESS
Definition: avcodec.h:2192
#define LIBAVCODEC_VERSION_INT
Definition: version.h:34
int(* encode2)(struct AVCodecContext *avctx, struct AVPacket *avpkt, const struct AVFrame *frame, int *got_packet_ptr)
Encode data to an AVPacket.
Definition: codec.h:280
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:627
#define LICENSE_PREFIX
int avcodec_parameters_to_context(AVCodecContext *codec, const AVCodecParameters *par)
Fill the codec context based on the values from the supplied codec parameters.
Definition: utils.c:2139
static AVFrame * frame
planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition: pixfmt.h:191
AVCPBProperties * ff_add_cpb_side_data(AVCodecContext *avctx)
Add a CPB properties side data to an encoding context.
Definition: utils.c:1992
Public header for CRC hash function implementation.
void * frame_thread_encoder
Definition: internal.h:152
int initial_padding
Audio only.
Definition: codec_par.h:189
const char data[16]
Definition: mxf.c:91
Structure to hold side data for an AVFrame.
Definition: frame.h:206
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:1532
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:194
#define av_restrict
Definition: config.h:10
void av_memcpy_backptr(uint8_t *dst, int back, int cnt)
Overlapping memcpy() implementation.
Definition: mem.c:430
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
uint8_t * data
Definition: packet.h:299
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:1570
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
Definition: avcodec.h:1765
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:1796
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:1750
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:308
channels
Definition: aptx.h:33
signed 32 bits
Definition: samplefmt.h:62
void * av_realloc_array(void *ptr, size_t nmemb, size_t size)
Allocate, reallocate, or free an array.
Definition: mem.c:200
AVCPBProperties * av_cpb_properties_alloc(size_t *size)
Allocate a CPB properties structure and initialize its fields to default values.
Definition: utils.c:1978
enum AVChromaLocation chroma_sample_location
This defines the location of chroma samples.
Definition: avcodec.h:1168
static void codec_parameters_reset(AVCodecParameters *par)
Definition: utils.c:2023
#define FFALIGN(x, a)
Definition: macros.h:48
uint64_t channel_layout
Audio only.
Definition: codec_par.h:162
#define av_log(a,...)
int av_sample_fmt_is_planar(enum AVSampleFormat sample_fmt)
Check if the sample format is planar.
Definition: samplefmt.c:112
void avcodec_parameters_free(AVCodecParameters **ppar)
Free an AVCodecParameters instance and everything associated with it and write NULL to the supplied p...
Definition: utils.c:2053
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
Definition: codec_par.h:89
#define FF_COMPLIANCE_UNOFFICIAL
Allow unofficial extensions.
Definition: avcodec.h:1593
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:1820
planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:157
Libavcodec version macros.
#define src
Definition: vp8dsp.c:254
av_cold int avcodec_close(AVCodecContext *avctx)
Close a given AVCodecContext and free all the data associated with it (but not the AVCodecContext its...
Definition: utils.c:1121
AVBSFContext * bsf
Definition: internal.h:138
enum AVCodecID id
Definition: codec.h:204
const uint64_t * channel_layouts
array of support channel layouts, or NULL if unknown. array is terminated by 0
Definition: codec.h:214
planar GBR 4:4:4 27bpp, big-endian
Definition: pixfmt.h:170
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:165
const char * av_chroma_location_name(enum AVChromaLocation location)
Definition: pixdesc.c:2966
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:269
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: codec_id.h:46
unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
Definition: utils.c:485
int width
Definition: frame.h:358
#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:816
int av_get_bits_per_sample(enum AVCodecID codec_id)
Return codec bits per sample.
Definition: utils.c:1552
#define AVMutex
Definition: thread.h:164
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
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:2260
#define MAKE_ACCESSORS(str, name, type, field)
Definition: internal.h:91
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:136
#define AVERROR(e)
Definition: error.h:43
unsigned int avpriv_toupper4(unsigned int x)
Definition: utils.c:1832
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:203
int qmax
maximum quantizer
Definition: avcodec.h:1375
int64_t pts_correction_last_pts
Number of incorrect DTS values so far.
Definition: avcodec.h:2108
int active_thread_type
Which multithreading methods are in use by the codec.
Definition: avcodec.h:1804
enum AVColorPrimaries color_primaries
Definition: codec_par.h:147
int avcodec_is_open(AVCodecContext *s)
Definition: utils.c:1917
int video_delay
Video only.
Definition: codec_par.h:155
const char * r
Definition: vf_curves.c:114
int av_match_list(const char *name, const char *list, char separator)
Check if a name is in a list.
Definition: avstring.c:449
AVFrame * buffer_frame
Definition: internal.h:174
int capabilities
Codec capabilities.
Definition: codec.h:209
int initial_padding
Audio only.
Definition: avcodec.h:2060
unsigned int pos
Definition: spdifenc.c:410
#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:1775
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values. ...
Definition: dict.c:203
preferred ID for decoding MPEG audio layer 1, 2 or 3
Definition: codec_id.h:411
#define av_fourcc2str(fourcc)
Definition: avutil.h:348
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), big-endian
Definition: pixfmt.h:182
enum AVMediaType codec_type
General type of the encoded data.
Definition: codec_par.h:56
const char * arg
Definition: jacosubdec.c:66
planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:161
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:606
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
Definition: allcodecs.c:914
simple assert() macros that are a bit more flexible than ISO C assert().
planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:248
int64_t av_gcd(int64_t a, int64_t b)
Compute the greatest common divisor of two integer operands.
Definition: mathematics.c:37
enum AVPacketSideDataType type
Definition: packet.h:301
int av_log_get_level(void)
Get the current log level.
Definition: log.c:435
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:239
const char * name
Name of the codec implementation.
Definition: codec.h:197
planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:134
const char * av_get_sample_fmt_name(enum AVSampleFormat sample_fmt)
Return the name of sample_fmt, or NULL if sample_fmt is not recognized.
Definition: samplefmt.c:49
int64_t max_pixels
The number of pixels per image to maximally accept.
Definition: avcodec.h:2256
const struct AVProfile * profiles
If non-NULL, an array of profiles recognized for this codec.
Definition: codec_desc.h:65
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
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 &&HAVE_MMX) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);return ctx;} void swri_audio_convert_free(AudioConvert **ctx) { av_freep(ctx);} int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len) { int ch;int off=0;const int os=(out->planar ? 1 :out->ch_count) *out->bps;unsigned misaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask) { int planes=in->planar ? in->ch_count :1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;} if(ctx->out_simd_align_mask) { int planes=out->planar ? out->ch_count :1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;} if(ctx->simd_f &&!ctx->ch_map &&!misaligned){ off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){ if(out->planar==in->planar){ int planes=out->planar ? out->ch_count :1;for(ch=0;ch< planes;ch++){ ctx->simd_f(out-> ch ch
Definition: audioconvert.c:56
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:1765
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: codec.h:106
const char av_codec_ffversion[]
Definition: utils.c:66
static int ff_mutex_unlock(AVMutex *mutex)
Definition: thread.h:169
const char * av_color_primaries_name(enum AVColorPrimaries primaries)
Definition: pixdesc.c:2894
reference-counted frame API
uint64_t channel_layout
Audio channel layout.
Definition: avcodec.h:1237
int extradata_size
Size of the extradata content in bytes.
Definition: codec_par.h:78
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
Definition: pixfmt.h:184
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
int rc_buffer_size
decoder bitstream buffer size
Definition: avcodec.h:1389
int props
Codec properties, a combination of AV_CODEC_PROP_* flags.
Definition: codec_desc.h:54
int ff_frame_thread_encoder_init(AVCodecContext *avctx, AVDictionary *options)
common internal API header
#define FF_MAX_EXTRADATA_SIZE
Maximum size in bytes of extradata.
Definition: internal.h:223
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:106
int refs
number of reference frames
Definition: avcodec.h:1114
planar GBR 4:4:4:4 48bpp, big-endian
Definition: pixfmt.h:287
int block_align
Audio only.
Definition: codec_par.h:177
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
#define AV_MUTEX_INITIALIZER
Definition: thread.h:165
audio channel layout utility functions
enum AVPixelFormat * pix_fmts
array of supported pixel formats, or NULL if unknown, array is terminated by -1
Definition: codec.h:211
#define FF_THREAD_FRAME
Decode more than one frame at once.
Definition: avcodec.h:1796
#define FFMIN(a, b)
Definition: common.h:96
AVPacketSideData * coded_side_data
Additional data associated with the entire coded stream.
Definition: avcodec.h:2201
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:1468
AVFrame * compat_decode_frame
Definition: internal.h:183
void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
Definition: utils.c:1911
int width
picture width / height.
Definition: avcodec.h:699
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:2226
#define FF_PROFILE_UNKNOWN
Definition: avcodec.h:1860
int priv_data_size
Definition: codec.h:238
int profile
Definition: codec.h:177
AVPacket * in_pkt
Definition: internal.h:112
AVFormatContext * ctx
Definition: movenc.c:48
#define AV_CODEC_FLAG_PASS1
Use internal 2pass ratecontrol in first pass mode.
Definition: avcodec.h:296
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:1140
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:188
packed YUV 4:2:2, 16bpp, Y0 Cr Y1 Cb
Definition: pixfmt.h:210
#define s(width, name)
Definition: cbs_vp9.c:257
int level
level
Definition: avcodec.h:1982
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:1881
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), big-endian
Definition: pixfmt.h:180
#define CONFIG_GRAY
Definition: config.h:549
const AVProfile * profiles
array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN} ...
Definition: codec.h:217
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:658
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:69
planar YUV 4:2:0,18bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:243
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:158
enum AVCodecID codec_id
Definition: vaapi_decode.c:369
enum AVColorRange color_range
Video only.
Definition: codec_par.h:146
Usually treated as AVMEDIA_TYPE_DATA.
Definition: avutil.h:200
Opaque data information usually sparse.
Definition: avutil.h:205
const char * av_get_colorspace_name(enum AVColorSpace val)
Get the name of a colorspace.
Definition: frame.c:123
DecodeSimpleContext ds
Definition: internal.h:137
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:2116
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:2677
int draining
checks API usage: after codec draining, flush is required to resume operation
Definition: internal.h:167
#define FF_ARRAY_ELEMS(a)
#define AVERROR_EXPERIMENTAL
Requested feature is flagged experimental. Set strict_std_compliance if you really want to use it...
Definition: error.h:72
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:1785
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:535
int sub_charenc_mode
Subtitles character encoding mode.
Definition: avcodec.h:2124
void av_get_channel_layout_string(char *buf, int buf_size, int nb_channels, uint64_t channel_layout)
Return a description of a channel layout.
planar GBR 4:4:4:4 48bpp, little-endian
Definition: pixfmt.h:288
void avcodec_flush_buffers(AVCodecContext *avctx)
Reset the internal codec state / flush internal buffers.
Definition: utils.c:1058
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:373
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:1419
int frame_size
Number of samples per channel in an audio frame.
Definition: avcodec.h:1206
#define attribute_align_arg
Definition: internal.h:62
This structure describes the bitrate properties of an encoded bitstream.
Definition: avcodec.h:448
int(* decode)(struct AVCodecContext *, void *outdata, int *outdata_size, struct AVPacket *avpkt)
Definition: codec.h:282
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:2139
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:1815
Libavcodec external API header.
enum AVMediaType codec_type
Definition: avcodec.h:534
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:1530
enum AVCodecID codec_id
Definition: avcodec.h:536
int seek_preroll
Number of samples to skip after a discontinuity.
Definition: avcodec.h:2149
int av_opt_set_dict(void *obj, AVDictionary **options)
Set all the options from a given dictionary on an object.
Definition: opt.c:1655
int sample_rate
samples per second
Definition: avcodec.h:1186
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:331
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:177
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
const AVCodecHWConfig * avcodec_get_hw_config(const AVCodec *codec, int index)
Retrieve supported hardware configurations for a codec.
Definition: utils.c:1803
planar GBR 4:4:4 30bpp, big-endian
Definition: pixfmt.h:172
main external API structure.
Definition: avcodec.h:526
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:605
int skip_samples_multiplier
Definition: internal.h:187
planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
Definition: pixfmt.h:192
uint8_t * data
The data buffer.
Definition: buffer.h:89
int qmin
minimum quantizer
Definition: avcodec.h:1368
void avsubtitle_free(AVSubtitle *sub)
Free all allocated data in the given subtitle struct.
Definition: utils.c:1102
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:551
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:1854
static void encode(AVCodecContext *ctx, AVFrame *frame, AVPacket *pkt, FILE *output)
Definition: encode_audio.c:95
uint8_t * data
Definition: frame.h:208
planar YUV 4:4:0,24bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
Definition: pixfmt.h:277
#define AV_CODEC_PROP_BITMAP_SUB
Subtitle codec is bitmap based Decoded AVSubtitle data can be read from the AVSubtitleRect->pict fiel...
Definition: codec_desc.h:97
planar GBR 4:4:4 42bpp, little-endian
Definition: pixfmt.h:257
int extradata_size
Definition: avcodec.h:628
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
Encode extradata length to a buffer.
Definition: utils.c:1782
int nb_coded_side_data
Definition: avcodec.h:2202
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:714
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:2193
int(* init)(struct AVCodecContext *)
Definition: codec.h:267
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:727
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
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:1154
Rational number (pair of numerator and denominator).
Definition: rational.h:58
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:1147
void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
Wrapper around release_buffer() frame-for multithreaded codecs.
Definition: utils.c:1875
const char * name
short name for the profile
Definition: codec.h:178
int avcodec_parameters_from_context(AVCodecParameters *par, const AVCodecContext *codec)
Fill the parameters struct based on the values from the supplied codec context.
Definition: utils.c:2082
This struct describes a set or pool of "hardware" frames (i.e.
Definition: hwcontext.h:124
planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:244
int buffer_pkt_valid
Definition: internal.h:173
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:2184
planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), big-endian
Definition: pixfmt.h:178
const VDPAUPixFmtMap * map
#define STRIDE_ALIGN
Definition: internal.h:108
const char * name
Name of the codec described by this descriptor.
Definition: codec_desc.h:46
int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Initialize the AVCodecContext to use the given AVCodec.
Definition: utils.c: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:1756
attribute_deprecated int refcounted_frames
If non-zero, the decoded audio and video frames returned from avcodec_decode_video2() and avcodec_dec...
Definition: avcodec.h:1357
AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
Definition: allcodecs.c:919
AVBufferRef * pool
Definition: internal.h:133
size_t av_strlcat(char *dst, const char *src, size_t size)
Append the string src to the string dst, but to a total length of no more than size - 1 bytes...
Definition: avstring.c:93
mfxU16 profile
Definition: qsvenc.c:45
int seek_preroll
Audio only.
Definition: codec_par.h:200
This struct describes the properties of a single codec described by an AVCodecID. ...
Definition: codec_desc.h:38
int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
Finalize buf into extradata and set its size appropriately.
Definition: utils.c:1922
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:554
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:564
int bits_per_raw_sample
This is the number of valid bits in each output sample.
Definition: codec_par.h:115
const AVClass * priv_class
AVClass for the private context.
Definition: codec.h:216
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:314
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: codec_par.h:170
enum AVMediaType type
Definition: codec_desc.h:40
uint8_t max_lowres
maximum value for lowres supported by the decoder
Definition: codec.h:215
AVPacket * buffer_pkt
buffers for using new encode/decode API through legacy API
Definition: internal.h:172
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:75
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:247
Y , 8bpp.
Definition: pixfmt.h:74
void av_opt_free(void *obj)
Free all allocated objects in obj.
Definition: opt.c:1610
const OptionDef options[]
Definition: ffmpeg_opt.c:3388
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:84
common internal api header.
enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
Converts swscale x/y chroma position to AVChromaLocation.
Definition: utils.c: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
static double c[64]
int profile
Codec-specific bitstream restrictions that the stream conforms to.
Definition: codec_par.h:120
const char * av_color_transfer_name(enum AVColorTransferCharacteristic transfer)
Definition: pixdesc.c:2918
int(* encode_sub)(struct AVCodecContext *, uint8_t *buf, int buf_size, const struct AVSubtitle *sub)
Definition: codec.h:268
void * hwaccel_priv_data
hwaccel-specific private data
Definition: internal.h:162
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
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
AVProfile.
Definition: codec.h:176
planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:133
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
int ff_thread_can_start_frame(AVCodecContext *avctx)
Definition: utils.c:1893
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:1776
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:1885
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:385
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
int caps_internal
Internal codec capabilities.
Definition: codec.h:310
const char * avcodec_get_name(enum AVCodecID id)
Get the name of a codec.
Definition: utils.c:1184
unsigned properties
Properties of the stream that gets decoded.
Definition: avcodec.h:2191
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:1533
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition: pixfmt.h:185
#define FFMPEG_CONFIGURATION
Definition: config.h:4
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
Definition: avcodec.h:215
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
Definition: utils.c:1224
#define AV_CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:300
static int lowres
Definition: ffplay.c:336
void * priv_data
Definition: avcodec.h:553
int(* send_frame)(struct AVCodecContext *avctx, const struct AVFrame *frame)
Encode API with decoupled packet/frame dataflow.
Definition: codec.h:292
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:1204
int(* close)(struct AVCodecContext *)
Definition: codec.h:283
int av_samples_fill_arrays(uint8_t **audio_data, int *linesize, const uint8_t *buf, int nb_channels, int nb_samples, enum AVSampleFormat sample_fmt, int align)
Fill plane data pointers and linesize for samples with sample format sample_fmt.
Definition: samplefmt.c:151
void ff_thread_flush(AVCodecContext *avctx)
Wait for decoding threads to finish and reset internal state.
#define av_free(p)
uint8_t * dump_separator
dump format separator.
Definition: avcodec.h:2176
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:85
#define TAG_PRINT(x)
#define FFMPEG_VERSION
Definition: ffversion.h:4
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:253
as in Berlin toast format
Definition: codec_id.h:428
int len
int channels
number of audio channels
Definition: avcodec.h:1187
const int * supported_samplerates
array of supported audio samplerates, or NULL if unknown, array is terminated by 0 ...
Definition: codec.h:212
struct AVCodecInternal * internal
Private context used for internal data.
Definition: avcodec.h:561
unsigned avcodec_version(void)
Return the LIBAVCODEC_VERSION_INT constant.
Definition: utils.c:1447
Y , 16bpp, little-endian.
Definition: pixfmt.h:98
AVPacket * av_packet_alloc(void)
Allocate an AVPacket and set its fields to default values.
Definition: avpacket.c:53
char * ass
0 terminated ASS/SSA compatible event line.
Definition: avcodec.h:2689
This side data corresponds to the AVCPBProperties struct.
Definition: packet.h:145
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:258
Not part of ABI.
Definition: pixfmt.h:562
signed 64 bits, planar
Definition: samplefmt.h:72
const AVCodecDescriptor * avcodec_descriptor_get(enum AVCodecID id)
Definition: codec_desc.c:3394
int flags2
AV_CODEC_FLAG2_*.
Definition: avcodec.h:613
int bits_per_coded_sample
The number of bits per sample in the codedwords.
Definition: codec_par.h:102
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: codec_par.h:74
static const struct twinvq_data tab
unsigned int byte_buffer_size
Definition: internal.h:150
#define HAVE_THREADS
Definition: config.h:273
int channels
Audio only.
Definition: codec_par.h:166
void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
Wait for earlier decoding threads to finish reference pictures.
Definition: utils.c:1889
planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
Definition: pixfmt.h:186
static int height
Definition: utils.c:158
#define AV_CODEC_FLAG2_EXPORT_MVS
Export motion vectors through frame side data.
Definition: avcodec.h:380
AVRational av_mul_q(AVRational b, AVRational c)
Multiply two rationals.
Definition: rational.c:80
int64_t pts_correction_last_dts
PTS of the last frame.
Definition: avcodec.h:2109
int frame_number
Frame counter, set by libavcodec.
Definition: avcodec.h:1217
int height
Definition: frame.h:358
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:2106
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:1183
signed 16 bits, planar
Definition: samplefmt.h:67
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:554
int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
Definition: utils.c:1840
void av_bsf_free(AVBSFContext **pctx)
Free a bitstream filter context and everything associated with it; write NULL into the supplied point...
Definition: bsf.c:40
planar GBR 4:4:4 48bpp, little-endian
Definition: pixfmt.h:175
enum AVSampleFormat * sample_fmts
array of supported sample formats, or NULL if unknown, array is terminated by -1
Definition: codec.h:213
AVMatrixEncoding
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
Definition: utils.c:1869
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
Definition: codec_par.h:64
int ff_alloc_entries(AVCodecContext *avctx, int count)
Definition: utils.c:1898
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:2196
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:2465
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:1945
void ff_reset_entries(AVCodecContext *avctx)
Definition: utils.c:1903
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:347
#define MKTAG(a, b, c, d)
Definition: common.h:406
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:2278
packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3
Definition: pixfmt.h:82
enum AVPixelFormat sw_format
The pixel format identifying the actual data layout of the hardware frames.
Definition: hwcontext.h:222
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
static double val(void *priv, double ch)
Definition: aeval.c:76
uint8_t * byte_buffer
temporary buffer used for encoders to store their bitstream
Definition: internal.h:149
const char * avcodec_profile_name(enum AVCodecID codec_id, int profile)
Return a name for the specified profile, if available.
Definition: utils.c:1432
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:682
int nb_samples
number of audio samples (per channel) described by this frame
Definition: frame.h:366
#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:1589
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:2076
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:1404
void * av_mallocz_array(size_t nmemb, size_t size)
Allocate a memory block for an array with av_mallocz().
Definition: mem.c:192
#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:2014
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