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utils.c
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1 /*
2  * utils for libavcodec
3  * Copyright (c) 2001 Fabrice Bellard
4  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 /**
24  * @file
25  * utils.
26  */
27 
28 #include "config.h"
29 #include "libavutil/attributes.h"
30 #include "libavutil/avassert.h"
31 #include "libavutil/avstring.h"
32 #include "libavutil/bprint.h"
34 #include "libavutil/crc.h"
35 #include "libavutil/frame.h"
36 #include "libavutil/hwcontext.h"
37 #include "libavutil/internal.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/mem_internal.h"
40 #include "libavutil/pixdesc.h"
41 #include "libavutil/imgutils.h"
42 #include "libavutil/samplefmt.h"
43 #include "libavutil/dict.h"
44 #include "libavutil/thread.h"
45 #include "avcodec.h"
46 #include "decode.h"
47 #include "hwaccel.h"
48 #include "libavutil/opt.h"
49 #include "mpegvideo.h"
50 #include "thread.h"
51 #include "frame_thread_encoder.h"
52 #include "internal.h"
53 #include "raw.h"
54 #include "bytestream.h"
55 #include "version.h"
56 #include <stdlib.h>
57 #include <stdarg.h>
58 #include <stdatomic.h>
59 #include <limits.h>
60 #include <float.h>
61 #if CONFIG_ICONV
62 # include <iconv.h>
63 #endif
64 
65 #include "libavutil/ffversion.h"
66 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
67 
69 
70 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
71 {
72  uint8_t **p = ptr;
73  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
74  av_freep(p);
75  *size = 0;
76  return;
77  }
78  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
79  memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
80 }
81 
82 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
83 {
84  uint8_t **p = ptr;
85  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
86  av_freep(p);
87  *size = 0;
88  return;
89  }
90  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
91  memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
92 }
93 
94 int av_codec_is_encoder(const AVCodec *codec)
95 {
96  return codec && (codec->encode_sub || codec->encode2 ||codec->send_frame);
97 }
98 
99 int av_codec_is_decoder(const AVCodec *codec)
100 {
101  return codec && (codec->decode || codec->receive_frame);
102 }
103 
105 {
106  int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
107 
108  if (ret < 0)
109  width = height = 0;
110 
111  s->coded_width = width;
112  s->coded_height = height;
113  s->width = AV_CEIL_RSHIFT(width, s->lowres);
114  s->height = AV_CEIL_RSHIFT(height, s->lowres);
115 
116  return ret;
117 }
118 
120 {
121  int ret = av_image_check_sar(avctx->width, avctx->height, sar);
122 
123  if (ret < 0) {
124  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
125  sar.num, sar.den);
126  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
127  return ret;
128  } else {
129  avctx->sample_aspect_ratio = sar;
130  }
131  return 0;
132 }
133 
135  enum AVMatrixEncoding matrix_encoding)
136 {
137  AVFrameSideData *side_data;
138  enum AVMatrixEncoding *data;
139 
141  if (!side_data)
143  sizeof(enum AVMatrixEncoding));
144 
145  if (!side_data)
146  return AVERROR(ENOMEM);
147 
148  data = (enum AVMatrixEncoding*)side_data->data;
149  *data = matrix_encoding;
150 
151  return 0;
152 }
153 
155  int linesize_align[AV_NUM_DATA_POINTERS])
156 {
157  int i;
158  int w_align = 1;
159  int h_align = 1;
161 
162  if (desc) {
163  w_align = 1 << desc->log2_chroma_w;
164  h_align = 1 << desc->log2_chroma_h;
165  }
166 
167  switch (s->pix_fmt) {
168  case AV_PIX_FMT_YUV420P:
169  case AV_PIX_FMT_YUYV422:
170  case AV_PIX_FMT_YVYU422:
171  case AV_PIX_FMT_UYVY422:
172  case AV_PIX_FMT_YUV422P:
173  case AV_PIX_FMT_YUV440P:
174  case AV_PIX_FMT_YUV444P:
175  case AV_PIX_FMT_GBRP:
176  case AV_PIX_FMT_GBRAP:
177  case AV_PIX_FMT_GRAY8:
178  case AV_PIX_FMT_GRAY16BE:
179  case AV_PIX_FMT_GRAY16LE:
180  case AV_PIX_FMT_YUVJ420P:
181  case AV_PIX_FMT_YUVJ422P:
182  case AV_PIX_FMT_YUVJ440P:
183  case AV_PIX_FMT_YUVJ444P:
184  case AV_PIX_FMT_YUVA420P:
185  case AV_PIX_FMT_YUVA422P:
186  case AV_PIX_FMT_YUVA444P:
239  case AV_PIX_FMT_GBRP9LE:
240  case AV_PIX_FMT_GBRP9BE:
241  case AV_PIX_FMT_GBRP10LE:
242  case AV_PIX_FMT_GBRP10BE:
243  case AV_PIX_FMT_GBRP12LE:
244  case AV_PIX_FMT_GBRP12BE:
245  case AV_PIX_FMT_GBRP14LE:
246  case AV_PIX_FMT_GBRP14BE:
247  case AV_PIX_FMT_GBRP16LE:
248  case AV_PIX_FMT_GBRP16BE:
253  w_align = 16; //FIXME assume 16 pixel per macroblock
254  h_align = 16 * 2; // interlaced needs 2 macroblocks height
255  break;
256  case AV_PIX_FMT_YUV411P:
257  case AV_PIX_FMT_YUVJ411P:
259  w_align = 32;
260  h_align = 16 * 2;
261  break;
262  case AV_PIX_FMT_YUV410P:
263  if (s->codec_id == AV_CODEC_ID_SVQ1) {
264  w_align = 64;
265  h_align = 64;
266  }
267  break;
268  case AV_PIX_FMT_RGB555:
269  if (s->codec_id == AV_CODEC_ID_RPZA) {
270  w_align = 4;
271  h_align = 4;
272  }
274  w_align = 8;
275  h_align = 8;
276  }
277  break;
278  case AV_PIX_FMT_PAL8:
279  case AV_PIX_FMT_BGR8:
280  case AV_PIX_FMT_RGB8:
281  if (s->codec_id == AV_CODEC_ID_SMC ||
283  w_align = 4;
284  h_align = 4;
285  }
286  if (s->codec_id == AV_CODEC_ID_JV ||
288  w_align = 8;
289  h_align = 8;
290  }
291  break;
292  case AV_PIX_FMT_BGR24:
293  if ((s->codec_id == AV_CODEC_ID_MSZH) ||
294  (s->codec_id == AV_CODEC_ID_ZLIB)) {
295  w_align = 4;
296  h_align = 4;
297  }
298  break;
299  case AV_PIX_FMT_RGB24:
300  if (s->codec_id == AV_CODEC_ID_CINEPAK) {
301  w_align = 4;
302  h_align = 4;
303  }
304  break;
305  default:
306  break;
307  }
308 
309  if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
310  w_align = FFMAX(w_align, 8);
311  }
312 
313  *width = FFALIGN(*width, w_align);
314  *height = FFALIGN(*height, h_align);
315  if (s->codec_id == AV_CODEC_ID_H264 || s->lowres ||
318  ) {
319  // some of the optimized chroma MC reads one line too much
320  // which is also done in mpeg decoders with lowres > 0
321  *height += 2;
322 
323  // H.264 uses edge emulation for out of frame motion vectors, for this
324  // it requires a temporary area large enough to hold a 21x21 block,
325  // increasing witdth ensure that the temporary area is large enough,
326  // the next rounded up width is 32
327  *width = FFMAX(*width, 32);
328  }
329 
330  for (i = 0; i < 4; i++)
331  linesize_align[i] = STRIDE_ALIGN;
332 }
333 
335 {
337  int chroma_shift = desc->log2_chroma_w;
338  int linesize_align[AV_NUM_DATA_POINTERS];
339  int align;
340 
341  avcodec_align_dimensions2(s, width, height, linesize_align);
342  align = FFMAX(linesize_align[0], linesize_align[3]);
343  linesize_align[1] <<= chroma_shift;
344  linesize_align[2] <<= chroma_shift;
345  align = FFMAX3(align, linesize_align[1], linesize_align[2]);
346  *width = FFALIGN(*width, align);
347 }
348 
349 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
350 {
351  if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
352  return AVERROR(EINVAL);
353  pos--;
354 
355  *xpos = (pos&1) * 128;
356  *ypos = ((pos>>1)^(pos<4)) * 128;
357 
358  return 0;
359 }
360 
362 {
363  int pos, xout, yout;
364 
365  for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
366  if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
367  return pos;
368  }
370 }
371 
373  enum AVSampleFormat sample_fmt, const uint8_t *buf,
374  int buf_size, int align)
375 {
376  int ch, planar, needed_size, ret = 0;
377 
378  needed_size = av_samples_get_buffer_size(NULL, nb_channels,
379  frame->nb_samples, sample_fmt,
380  align);
381  if (buf_size < needed_size)
382  return AVERROR(EINVAL);
383 
384  planar = av_sample_fmt_is_planar(sample_fmt);
385  if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
386  if (!(frame->extended_data = av_mallocz_array(nb_channels,
387  sizeof(*frame->extended_data))))
388  return AVERROR(ENOMEM);
389  } else {
390  frame->extended_data = frame->data;
391  }
392 
393  if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
394  (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
395  sample_fmt, align)) < 0) {
396  if (frame->extended_data != frame->data)
397  av_freep(&frame->extended_data);
398  return ret;
399  }
400  if (frame->extended_data != frame->data) {
401  for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
402  frame->data[ch] = frame->extended_data[ch];
403  }
404 
405  return ret;
406 }
407 
408 void ff_color_frame(AVFrame *frame, const int c[4])
409 {
411  int p, y, x;
412 
414 
415  for (p = 0; p<desc->nb_components; p++) {
416  uint8_t *dst = frame->data[p];
417  int is_chroma = p == 1 || p == 2;
418  int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
419  int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
420  for (y = 0; y < height; y++) {
421  if (desc->comp[0].depth >= 9) {
422  for (x = 0; x<bytes; x++)
423  ((uint16_t*)dst)[x] = c[p];
424  }else
425  memset(dst, c[p], bytes);
426  dst += frame->linesize[p];
427  }
428  }
429 }
430 
431 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
432 {
433  int i;
434 
435  for (i = 0; i < count; i++) {
436  int r = func(c, (char *)arg + i * size);
437  if (ret)
438  ret[i] = r;
439  }
440  emms_c();
441  return 0;
442 }
443 
444 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
445 {
446  int i;
447 
448  for (i = 0; i < count; i++) {
449  int r = func(c, arg, i, 0);
450  if (ret)
451  ret[i] = r;
452  }
453  emms_c();
454  return 0;
455 }
456 
458  unsigned int fourcc)
459 {
460  while (tags->pix_fmt >= 0) {
461  if (tags->fourcc == fourcc)
462  return tags->pix_fmt;
463  tags++;
464  }
465  return AV_PIX_FMT_NONE;
466 }
467 
468 #if FF_API_CODEC_GET_SET
469 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
470 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
471 MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
472 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
473 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
474 
475 unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
476 {
477  return codec->properties;
478 }
479 
481 {
482  return codec->max_lowres;
483 }
484 #endif
485 
488 }
489 
491 {
492  int64_t bit_rate;
493  int bits_per_sample;
494 
495  switch (ctx->codec_type) {
496  case AVMEDIA_TYPE_VIDEO:
497  case AVMEDIA_TYPE_DATA:
500  bit_rate = ctx->bit_rate;
501  break;
502  case AVMEDIA_TYPE_AUDIO:
503  bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
504  bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
505  break;
506  default:
507  bit_rate = 0;
508  break;
509  }
510  return bit_rate;
511 }
512 
513 
514 static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
515 {
516  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
518 }
519 
520 static void ff_unlock_avcodec(const AVCodec *codec)
521 {
522  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
524 }
525 
526 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
527 {
528  int ret = 0;
529 
530  ff_unlock_avcodec(codec);
531 
532  ret = avcodec_open2(avctx, codec, options);
533 
534  ff_lock_avcodec(avctx, codec);
535  return ret;
536 }
537 
538 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
539 {
540  int ret = 0;
541  AVDictionary *tmp = NULL;
542  const AVPixFmtDescriptor *pixdesc;
543 
544  if (avcodec_is_open(avctx))
545  return 0;
546 
547  if ((!codec && !avctx->codec)) {
548  av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
549  return AVERROR(EINVAL);
550  }
551  if ((codec && avctx->codec && codec != avctx->codec)) {
552  av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
553  "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
554  return AVERROR(EINVAL);
555  }
556  if (!codec)
557  codec = avctx->codec;
558 
559  if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
560  return AVERROR(EINVAL);
561 
562  if (options)
563  av_dict_copy(&tmp, *options, 0);
564 
565  ff_lock_avcodec(avctx, codec);
566 
567  avctx->internal = av_mallocz(sizeof(*avctx->internal));
568  if (!avctx->internal) {
569  ret = AVERROR(ENOMEM);
570  goto end;
571  }
572 
573  avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
574  if (!avctx->internal->pool) {
575  ret = AVERROR(ENOMEM);
576  goto free_and_end;
577  }
578 
579  avctx->internal->to_free = av_frame_alloc();
580  if (!avctx->internal->to_free) {
581  ret = AVERROR(ENOMEM);
582  goto free_and_end;
583  }
584 
586  if (!avctx->internal->compat_decode_frame) {
587  ret = AVERROR(ENOMEM);
588  goto free_and_end;
589  }
590 
592  if (!avctx->internal->buffer_frame) {
593  ret = AVERROR(ENOMEM);
594  goto free_and_end;
595  }
596 
597  avctx->internal->buffer_pkt = av_packet_alloc();
598  if (!avctx->internal->buffer_pkt) {
599  ret = AVERROR(ENOMEM);
600  goto free_and_end;
601  }
602 
603  avctx->internal->ds.in_pkt = av_packet_alloc();
604  if (!avctx->internal->ds.in_pkt) {
605  ret = AVERROR(ENOMEM);
606  goto free_and_end;
607  }
608 
610  if (!avctx->internal->last_pkt_props) {
611  ret = AVERROR(ENOMEM);
612  goto free_and_end;
613  }
614 
615  avctx->internal->skip_samples_multiplier = 1;
616 
617  if (codec->priv_data_size > 0) {
618  if (!avctx->priv_data) {
619  avctx->priv_data = av_mallocz(codec->priv_data_size);
620  if (!avctx->priv_data) {
621  ret = AVERROR(ENOMEM);
622  goto end;
623  }
624  if (codec->priv_class) {
625  *(const AVClass **)avctx->priv_data = codec->priv_class;
627  }
628  }
629  if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
630  goto free_and_end;
631  } else {
632  avctx->priv_data = NULL;
633  }
634  if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
635  goto free_and_end;
636 
637  if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
638  av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
639  ret = AVERROR(EINVAL);
640  goto free_and_end;
641  }
642 
643  // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
644  if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
645  (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
646  if (avctx->coded_width && avctx->coded_height)
647  ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
648  else if (avctx->width && avctx->height)
649  ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
650  if (ret < 0)
651  goto free_and_end;
652  }
653 
654  if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
655  && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
656  || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
657  av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
658  ff_set_dimensions(avctx, 0, 0);
659  }
660 
661  if (avctx->width > 0 && avctx->height > 0) {
662  if (av_image_check_sar(avctx->width, avctx->height,
663  avctx->sample_aspect_ratio) < 0) {
664  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
665  avctx->sample_aspect_ratio.num,
666  avctx->sample_aspect_ratio.den);
667  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
668  }
669  }
670 
671  /* if the decoder init function was already called previously,
672  * free the already allocated subtitle_header before overwriting it */
673  if (av_codec_is_decoder(codec))
674  av_freep(&avctx->subtitle_header);
675 
676  if (avctx->channels > FF_SANE_NB_CHANNELS) {
677  av_log(avctx, AV_LOG_ERROR, "Too many channels: %d\n", avctx->channels);
678  ret = AVERROR(EINVAL);
679  goto free_and_end;
680  }
681 
682  avctx->codec = codec;
683  if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
684  avctx->codec_id == AV_CODEC_ID_NONE) {
685  avctx->codec_type = codec->type;
686  avctx->codec_id = codec->id;
687  }
688  if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
689  && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
690  av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
691  ret = AVERROR(EINVAL);
692  goto free_and_end;
693  }
694  avctx->frame_number = 0;
696 
697  if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
699  const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
700  AVCodec *codec2;
701  av_log(avctx, AV_LOG_ERROR,
702  "The %s '%s' is experimental but experimental codecs are not enabled, "
703  "add '-strict %d' if you want to use it.\n",
704  codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
705  codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
706  if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
707  av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
708  codec_string, codec2->name);
709  ret = AVERROR_EXPERIMENTAL;
710  goto free_and_end;
711  }
712 
713  if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
714  (!avctx->time_base.num || !avctx->time_base.den)) {
715  avctx->time_base.num = 1;
716  avctx->time_base.den = avctx->sample_rate;
717  }
718 
719  if (!HAVE_THREADS)
720  av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
721 
722  if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
723  ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
724  ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
725  ff_lock_avcodec(avctx, codec);
726  if (ret < 0)
727  goto free_and_end;
728  }
729 
730  if (av_codec_is_decoder(avctx->codec)) {
731  ret = ff_decode_bsfs_init(avctx);
732  if (ret < 0)
733  goto free_and_end;
734  }
735 
736  if (HAVE_THREADS
738  ret = ff_thread_init(avctx);
739  if (ret < 0) {
740  goto free_and_end;
741  }
742  }
743  if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
744  avctx->thread_count = 1;
745 
746  if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
747  av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
748  avctx->codec->max_lowres);
749  avctx->lowres = avctx->codec->max_lowres;
750  }
751 
752  if (av_codec_is_encoder(avctx->codec)) {
753  int i;
754 #if FF_API_CODED_FRAME
756  avctx->coded_frame = av_frame_alloc();
757  if (!avctx->coded_frame) {
758  ret = AVERROR(ENOMEM);
759  goto free_and_end;
760  }
762 #endif
763 
764  if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
765  av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
766  ret = AVERROR(EINVAL);
767  goto free_and_end;
768  }
769 
770  if (avctx->codec->sample_fmts) {
771  for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
772  if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
773  break;
774  if (avctx->channels == 1 &&
777  avctx->sample_fmt = avctx->codec->sample_fmts[i];
778  break;
779  }
780  }
781  if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
782  char buf[128];
783  snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
784  av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
785  (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
786  ret = AVERROR(EINVAL);
787  goto free_and_end;
788  }
789  }
790  if (avctx->codec->pix_fmts) {
791  for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
792  if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
793  break;
794  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
795  && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
797  char buf[128];
798  snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
799  av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
800  (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
801  ret = AVERROR(EINVAL);
802  goto free_and_end;
803  }
804  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
805  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
806  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
807  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
808  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
809  avctx->color_range = AVCOL_RANGE_JPEG;
810  }
811  if (avctx->codec->supported_samplerates) {
812  for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
813  if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
814  break;
815  if (avctx->codec->supported_samplerates[i] == 0) {
816  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
817  avctx->sample_rate);
818  ret = AVERROR(EINVAL);
819  goto free_and_end;
820  }
821  }
822  if (avctx->sample_rate < 0) {
823  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
824  avctx->sample_rate);
825  ret = AVERROR(EINVAL);
826  goto free_and_end;
827  }
828  if (avctx->codec->channel_layouts) {
829  if (!avctx->channel_layout) {
830  av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
831  } else {
832  for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
833  if (avctx->channel_layout == avctx->codec->channel_layouts[i])
834  break;
835  if (avctx->codec->channel_layouts[i] == 0) {
836  char buf[512];
837  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
838  av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
839  ret = AVERROR(EINVAL);
840  goto free_and_end;
841  }
842  }
843  }
844  if (avctx->channel_layout && avctx->channels) {
846  if (channels != avctx->channels) {
847  char buf[512];
848  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
849  av_log(avctx, AV_LOG_ERROR,
850  "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
851  buf, channels, avctx->channels);
852  ret = AVERROR(EINVAL);
853  goto free_and_end;
854  }
855  } else if (avctx->channel_layout) {
857  }
858  if (avctx->channels < 0) {
859  av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
860  avctx->channels);
861  ret = AVERROR(EINVAL);
862  goto free_and_end;
863  }
864  if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
865  pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
866  if ( avctx->bits_per_raw_sample < 0
867  || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
868  av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
869  avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
870  avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
871  }
872  if (avctx->width <= 0 || avctx->height <= 0) {
873  av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
874  ret = AVERROR(EINVAL);
875  goto free_and_end;
876  }
877  }
878  if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
879  && avctx->bit_rate>0 && avctx->bit_rate<1000) {
880  av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
881  }
882 
883  if (!avctx->rc_initial_buffer_occupancy)
884  avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
885 
886  if (avctx->ticks_per_frame && avctx->time_base.num &&
887  avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
888  av_log(avctx, AV_LOG_ERROR,
889  "ticks_per_frame %d too large for the timebase %d/%d.",
890  avctx->ticks_per_frame,
891  avctx->time_base.num,
892  avctx->time_base.den);
893  goto free_and_end;
894  }
895 
896  if (avctx->hw_frames_ctx) {
897  AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
898  if (frames_ctx->format != avctx->pix_fmt) {
899  av_log(avctx, AV_LOG_ERROR,
900  "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
901  ret = AVERROR(EINVAL);
902  goto free_and_end;
903  }
904  if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
905  avctx->sw_pix_fmt != frames_ctx->sw_format) {
906  av_log(avctx, AV_LOG_ERROR,
907  "Mismatching AVCodecContext.sw_pix_fmt (%s) "
908  "and AVHWFramesContext.sw_format (%s)\n",
910  av_get_pix_fmt_name(frames_ctx->sw_format));
911  ret = AVERROR(EINVAL);
912  goto free_and_end;
913  }
914  avctx->sw_pix_fmt = frames_ctx->sw_format;
915  }
916  }
917 
920  avctx->pts_correction_last_pts =
921  avctx->pts_correction_last_dts = INT64_MIN;
922 
923  if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
925  av_log(avctx, AV_LOG_WARNING,
926  "gray decoding requested but not enabled at configuration time\n");
927 
928  if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
929  || avctx->internal->frame_thread_encoder)) {
930  ret = avctx->codec->init(avctx);
931  if (ret < 0) {
932  goto free_and_end;
933  }
934  }
935 
936  ret=0;
937 
938  if (av_codec_is_decoder(avctx->codec)) {
939  if (!avctx->bit_rate)
940  avctx->bit_rate = get_bit_rate(avctx);
941  /* validate channel layout from the decoder */
942  if (avctx->channel_layout) {
944  if (!avctx->channels)
945  avctx->channels = channels;
946  else if (channels != avctx->channels) {
947  char buf[512];
948  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
949  av_log(avctx, AV_LOG_WARNING,
950  "Channel layout '%s' with %d channels does not match specified number of channels %d: "
951  "ignoring specified channel layout\n",
952  buf, channels, avctx->channels);
953  avctx->channel_layout = 0;
954  }
955  }
956  if (avctx->channels && avctx->channels < 0 ||
957  avctx->channels > FF_SANE_NB_CHANNELS) {
958  ret = AVERROR(EINVAL);
959  goto free_and_end;
960  }
961  if (avctx->sub_charenc) {
962  if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
963  av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
964  "supported with subtitles codecs\n");
965  ret = AVERROR(EINVAL);
966  goto free_and_end;
967  } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
968  av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
969  "subtitles character encoding will be ignored\n",
970  avctx->codec_descriptor->name);
972  } else {
973  /* input character encoding is set for a text based subtitle
974  * codec at this point */
977 
979 #if CONFIG_ICONV
980  iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
981  if (cd == (iconv_t)-1) {
982  ret = AVERROR(errno);
983  av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
984  "with input character encoding \"%s\"\n", avctx->sub_charenc);
985  goto free_and_end;
986  }
987  iconv_close(cd);
988 #else
989  av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
990  "conversion needs a libavcodec built with iconv support "
991  "for this codec\n");
992  ret = AVERROR(ENOSYS);
993  goto free_and_end;
994 #endif
995  }
996  }
997  }
998 
999 #if FF_API_AVCTX_TIMEBASE
1000  if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1001  avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1002 #endif
1003  }
1004  if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1005  av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1006  }
1007 
1008 end:
1009  ff_unlock_avcodec(codec);
1010  if (options) {
1012  *options = tmp;
1013  }
1014 
1015  return ret;
1016 free_and_end:
1017  if (avctx->codec &&
1018  (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP))
1019  avctx->codec->close(avctx);
1020 
1021  if (codec->priv_class && codec->priv_data_size)
1022  av_opt_free(avctx->priv_data);
1023  av_opt_free(avctx);
1024 
1025 #if FF_API_CODED_FRAME
1027  av_frame_free(&avctx->coded_frame);
1029 #endif
1030 
1031  av_dict_free(&tmp);
1032  av_freep(&avctx->priv_data);
1033  if (avctx->internal) {
1034  av_frame_free(&avctx->internal->to_free);
1035  av_frame_free(&avctx->internal->compat_decode_frame);
1036  av_frame_free(&avctx->internal->buffer_frame);
1037  av_packet_free(&avctx->internal->buffer_pkt);
1038  av_packet_free(&avctx->internal->last_pkt_props);
1039 
1040  av_packet_free(&avctx->internal->ds.in_pkt);
1041  ff_decode_bsfs_uninit(avctx);
1042 
1043  av_freep(&avctx->internal->pool);
1044  }
1045  av_freep(&avctx->internal);
1046  avctx->codec = NULL;
1047  goto end;
1048 }
1049 
1051 {
1052  int i;
1053 
1054  for (i = 0; i < sub->num_rects; i++) {
1055  av_freep(&sub->rects[i]->data[0]);
1056  av_freep(&sub->rects[i]->data[1]);
1057  av_freep(&sub->rects[i]->data[2]);
1058  av_freep(&sub->rects[i]->data[3]);
1059  av_freep(&sub->rects[i]->text);
1060  av_freep(&sub->rects[i]->ass);
1061  av_freep(&sub->rects[i]);
1062  }
1063 
1064  av_freep(&sub->rects);
1065 
1066  memset(sub, 0, sizeof(*sub));
1067 }
1068 
1070 {
1071  int i;
1072 
1073  if (!avctx)
1074  return 0;
1075 
1076  if (avcodec_is_open(avctx)) {
1077  FramePool *pool = avctx->internal->pool;
1078  if (CONFIG_FRAME_THREAD_ENCODER &&
1079  avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1081  }
1082  if (HAVE_THREADS && avctx->internal->thread_ctx)
1083  ff_thread_free(avctx);
1084  if (avctx->codec && avctx->codec->close)
1085  avctx->codec->close(avctx);
1086  avctx->internal->byte_buffer_size = 0;
1087  av_freep(&avctx->internal->byte_buffer);
1088  av_frame_free(&avctx->internal->to_free);
1093 
1094  av_packet_free(&avctx->internal->ds.in_pkt);
1095 
1096  for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
1097  av_buffer_pool_uninit(&pool->pools[i]);
1098  av_freep(&avctx->internal->pool);
1099 
1100  if (avctx->hwaccel && avctx->hwaccel->uninit)
1101  avctx->hwaccel->uninit(avctx);
1103 
1104  ff_decode_bsfs_uninit(avctx);
1105 
1106  av_freep(&avctx->internal);
1107  }
1108 
1109  for (i = 0; i < avctx->nb_coded_side_data; i++)
1110  av_freep(&avctx->coded_side_data[i].data);
1111  av_freep(&avctx->coded_side_data);
1112  avctx->nb_coded_side_data = 0;
1113 
1114  av_buffer_unref(&avctx->hw_frames_ctx);
1115  av_buffer_unref(&avctx->hw_device_ctx);
1116 
1117  if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1118  av_opt_free(avctx->priv_data);
1119  av_opt_free(avctx);
1120  av_freep(&avctx->priv_data);
1121  if (av_codec_is_encoder(avctx->codec)) {
1122  av_freep(&avctx->extradata);
1123 #if FF_API_CODED_FRAME
1125  av_frame_free(&avctx->coded_frame);
1127 #endif
1128  }
1129  avctx->codec = NULL;
1130  avctx->active_thread_type = 0;
1131 
1132  return 0;
1133 }
1134 
1135 const char *avcodec_get_name(enum AVCodecID id)
1136 {
1137  const AVCodecDescriptor *cd;
1138  AVCodec *codec;
1139 
1140  if (id == AV_CODEC_ID_NONE)
1141  return "none";
1142  cd = avcodec_descriptor_get(id);
1143  if (cd)
1144  return cd->name;
1145  av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1146  codec = avcodec_find_decoder(id);
1147  if (codec)
1148  return codec->name;
1149  codec = avcodec_find_encoder(id);
1150  if (codec)
1151  return codec->name;
1152  return "unknown_codec";
1153 }
1154 
1155 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1156 {
1157  int i, len, ret = 0;
1158 
1159 #define TAG_PRINT(x) \
1160  (((x) >= '0' && (x) <= '9') || \
1161  ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1162  ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
1163 
1164  for (i = 0; i < 4; i++) {
1165  len = snprintf(buf, buf_size,
1166  TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1167  buf += len;
1168  buf_size = buf_size > len ? buf_size - len : 0;
1169  ret += len;
1170  codec_tag >>= 8;
1171  }
1172  return ret;
1173 }
1174 
1175 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1176 {
1177  const char *codec_type;
1178  const char *codec_name;
1179  const char *profile = NULL;
1180  int64_t bitrate;
1181  int new_line = 0;
1182  AVRational display_aspect_ratio;
1183  const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1184 
1185  if (!buf || buf_size <= 0)
1186  return;
1187  codec_type = av_get_media_type_string(enc->codec_type);
1188  codec_name = avcodec_get_name(enc->codec_id);
1189  profile = avcodec_profile_name(enc->codec_id, enc->profile);
1190 
1191  snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1192  codec_name);
1193  buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1194 
1195  if (enc->codec && strcmp(enc->codec->name, codec_name))
1196  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1197 
1198  if (profile)
1199  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1200  if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1202  && enc->refs)
1203  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1204  ", %d reference frame%s",
1205  enc->refs, enc->refs > 1 ? "s" : "");
1206 
1207  if (enc->codec_tag)
1208  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1209  av_fourcc2str(enc->codec_tag), enc->codec_tag);
1210 
1211  switch (enc->codec_type) {
1212  case AVMEDIA_TYPE_VIDEO:
1213  {
1214  char detail[256] = "(";
1215 
1216  av_strlcat(buf, separator, buf_size);
1217 
1218  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1219  "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1221  if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1223  av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1225  av_strlcatf(detail, sizeof(detail), "%s, ",
1227 
1228  if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1230  enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1231  if (enc->colorspace != (int)enc->color_primaries ||
1232  enc->colorspace != (int)enc->color_trc) {
1233  new_line = 1;
1234  av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1238  } else
1239  av_strlcatf(detail, sizeof(detail), "%s, ",
1241  }
1242 
1243  if (enc->field_order != AV_FIELD_UNKNOWN) {
1244  const char *field_order = "progressive";
1245  if (enc->field_order == AV_FIELD_TT)
1246  field_order = "top first";
1247  else if (enc->field_order == AV_FIELD_BB)
1248  field_order = "bottom first";
1249  else if (enc->field_order == AV_FIELD_TB)
1250  field_order = "top coded first (swapped)";
1251  else if (enc->field_order == AV_FIELD_BT)
1252  field_order = "bottom coded first (swapped)";
1253 
1254  av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1255  }
1256 
1257  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1259  av_strlcatf(detail, sizeof(detail), "%s, ",
1261 
1262  if (strlen(detail) > 1) {
1263  detail[strlen(detail) - 2] = 0;
1264  av_strlcatf(buf, buf_size, "%s)", detail);
1265  }
1266  }
1267 
1268  if (enc->width) {
1269  av_strlcat(buf, new_line ? separator : ", ", buf_size);
1270 
1271  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1272  "%dx%d",
1273  enc->width, enc->height);
1274 
1275  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1276  (enc->width != enc->coded_width ||
1277  enc->height != enc->coded_height))
1278  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1279  " (%dx%d)", enc->coded_width, enc->coded_height);
1280 
1281  if (enc->sample_aspect_ratio.num) {
1282  av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1283  enc->width * (int64_t)enc->sample_aspect_ratio.num,
1284  enc->height * (int64_t)enc->sample_aspect_ratio.den,
1285  1024 * 1024);
1286  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1287  " [SAR %d:%d DAR %d:%d]",
1289  display_aspect_ratio.num, display_aspect_ratio.den);
1290  }
1291  if (av_log_get_level() >= AV_LOG_DEBUG) {
1292  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1293  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1294  ", %d/%d",
1295  enc->time_base.num / g, enc->time_base.den / g);
1296  }
1297  }
1298  if (encode) {
1299  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1300  ", q=%d-%d", enc->qmin, enc->qmax);
1301  } else {
1303  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1304  ", Closed Captions");
1306  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1307  ", lossless");
1308  }
1309  break;
1310  case AVMEDIA_TYPE_AUDIO:
1311  av_strlcat(buf, separator, buf_size);
1312 
1313  if (enc->sample_rate) {
1314  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1315  "%d Hz, ", enc->sample_rate);
1316  }
1317  av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1318  if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1319  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1320  ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1321  }
1322  if ( enc->bits_per_raw_sample > 0
1324  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1325  " (%d bit)", enc->bits_per_raw_sample);
1326  if (av_log_get_level() >= AV_LOG_VERBOSE) {
1327  if (enc->initial_padding)
1328  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1329  ", delay %d", enc->initial_padding);
1330  if (enc->trailing_padding)
1331  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1332  ", padding %d", enc->trailing_padding);
1333  }
1334  break;
1335  case AVMEDIA_TYPE_DATA:
1336  if (av_log_get_level() >= AV_LOG_DEBUG) {
1337  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1338  if (g)
1339  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1340  ", %d/%d",
1341  enc->time_base.num / g, enc->time_base.den / g);
1342  }
1343  break;
1344  case AVMEDIA_TYPE_SUBTITLE:
1345  if (enc->width)
1346  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1347  ", %dx%d", enc->width, enc->height);
1348  break;
1349  default:
1350  return;
1351  }
1352  if (encode) {
1353  if (enc->flags & AV_CODEC_FLAG_PASS1)
1354  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1355  ", pass 1");
1356  if (enc->flags & AV_CODEC_FLAG_PASS2)
1357  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1358  ", pass 2");
1359  }
1360  bitrate = get_bit_rate(enc);
1361  if (bitrate != 0) {
1362  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1363  ", %"PRId64" kb/s", bitrate / 1000);
1364  } else if (enc->rc_max_rate > 0) {
1365  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1366  ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1367  }
1368 }
1369 
1370 const char *av_get_profile_name(const AVCodec *codec, int profile)
1371 {
1372  const AVProfile *p;
1373  if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1374  return NULL;
1375 
1376  for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1377  if (p->profile == profile)
1378  return p->name;
1379 
1380  return NULL;
1381 }
1382 
1384 {
1385  const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1386  const AVProfile *p;
1387 
1388  if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1389  return NULL;
1390 
1391  for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1392  if (p->profile == profile)
1393  return p->name;
1394 
1395  return NULL;
1396 }
1397 
1398 unsigned avcodec_version(void)
1399 {
1400 // av_assert0(AV_CODEC_ID_V410==164);
1403 // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
1404  av_assert0(AV_CODEC_ID_SRT==94216);
1406 
1407  return LIBAVCODEC_VERSION_INT;
1408 }
1409 
1410 const char *avcodec_configuration(void)
1411 {
1412  return FFMPEG_CONFIGURATION;
1413 }
1414 
1415 const char *avcodec_license(void)
1416 {
1417 #define LICENSE_PREFIX "libavcodec license: "
1418  return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
1419 }
1420 
1422 {
1423  switch (codec_id) {
1424  case AV_CODEC_ID_8SVX_EXP:
1425  case AV_CODEC_ID_8SVX_FIB:
1426  case AV_CODEC_ID_ADPCM_CT:
1434  return 4;
1435  case AV_CODEC_ID_DSD_LSBF:
1436  case AV_CODEC_ID_DSD_MSBF:
1439  case AV_CODEC_ID_PCM_ALAW:
1440  case AV_CODEC_ID_PCM_MULAW:
1441  case AV_CODEC_ID_PCM_VIDC:
1442  case AV_CODEC_ID_PCM_S8:
1444  case AV_CODEC_ID_PCM_U8:
1445  case AV_CODEC_ID_PCM_ZORK:
1446  case AV_CODEC_ID_SDX2_DPCM:
1447  return 8;
1448  case AV_CODEC_ID_PCM_S16BE:
1450  case AV_CODEC_ID_PCM_S16LE:
1452  case AV_CODEC_ID_PCM_U16BE:
1453  case AV_CODEC_ID_PCM_U16LE:
1454  return 16;
1456  case AV_CODEC_ID_PCM_S24BE:
1457  case AV_CODEC_ID_PCM_S24LE:
1459  case AV_CODEC_ID_PCM_U24BE:
1460  case AV_CODEC_ID_PCM_U24LE:
1461  return 24;
1462  case AV_CODEC_ID_PCM_S32BE:
1463  case AV_CODEC_ID_PCM_S32LE:
1465  case AV_CODEC_ID_PCM_U32BE:
1466  case AV_CODEC_ID_PCM_U32LE:
1467  case AV_CODEC_ID_PCM_F32BE:
1468  case AV_CODEC_ID_PCM_F32LE:
1469  case AV_CODEC_ID_PCM_F24LE:
1470  case AV_CODEC_ID_PCM_F16LE:
1471  return 32;
1472  case AV_CODEC_ID_PCM_F64BE:
1473  case AV_CODEC_ID_PCM_F64LE:
1474  case AV_CODEC_ID_PCM_S64BE:
1475  case AV_CODEC_ID_PCM_S64LE:
1476  return 64;
1477  default:
1478  return 0;
1479  }
1480 }
1481 
1483 {
1484  static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
1496  };
1497  if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
1498  return AV_CODEC_ID_NONE;
1499  if (be < 0 || be > 1)
1500  be = AV_NE(1, 0);
1501  return map[fmt][be];
1502 }
1503 
1505 {
1506  switch (codec_id) {
1508  return 2;
1510  return 3;
1514  case AV_CODEC_ID_ADPCM_SWF:
1515  case AV_CODEC_ID_ADPCM_MS:
1516  return 4;
1517  default:
1518  return av_get_exact_bits_per_sample(codec_id);
1519  }
1520 }
1521 
1522 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1523  uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1524  uint8_t * extradata, int frame_size, int frame_bytes)
1525 {
1527  int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1528 
1529  /* codecs with an exact constant bits per sample */
1530  if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1531  return (frame_bytes * 8LL) / (bps * ch);
1532  bps = bits_per_coded_sample;
1533 
1534  /* codecs with a fixed packet duration */
1535  switch (id) {
1536  case AV_CODEC_ID_ADPCM_ADX: return 32;
1537  case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1538  case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1539  case AV_CODEC_ID_AMR_NB:
1540  case AV_CODEC_ID_EVRC:
1541  case AV_CODEC_ID_GSM:
1542  case AV_CODEC_ID_QCELP:
1543  case AV_CODEC_ID_RA_288: return 160;
1544  case AV_CODEC_ID_AMR_WB:
1545  case AV_CODEC_ID_GSM_MS: return 320;
1546  case AV_CODEC_ID_MP1: return 384;
1547  case AV_CODEC_ID_ATRAC1: return 512;
1548  case AV_CODEC_ID_ATRAC9:
1549  case AV_CODEC_ID_ATRAC3: return 1024 * framecount;
1550  case AV_CODEC_ID_ATRAC3P: return 2048;
1551  case AV_CODEC_ID_MP2:
1552  case AV_CODEC_ID_MUSEPACK7: return 1152;
1553  case AV_CODEC_ID_AC3: return 1536;
1554  }
1555 
1556  if (sr > 0) {
1557  /* calc from sample rate */
1558  if (id == AV_CODEC_ID_TTA)
1559  return 256 * sr / 245;
1560  else if (id == AV_CODEC_ID_DST)
1561  return 588 * sr / 44100;
1562 
1563  if (ch > 0) {
1564  /* calc from sample rate and channels */
1565  if (id == AV_CODEC_ID_BINKAUDIO_DCT)
1566  return (480 << (sr / 22050)) / ch;
1567  }
1568 
1569  if (id == AV_CODEC_ID_MP3)
1570  return sr <= 24000 ? 576 : 1152;
1571  }
1572 
1573  if (ba > 0) {
1574  /* calc from block_align */
1575  if (id == AV_CODEC_ID_SIPR) {
1576  switch (ba) {
1577  case 20: return 160;
1578  case 19: return 144;
1579  case 29: return 288;
1580  case 37: return 480;
1581  }
1582  } else if (id == AV_CODEC_ID_ILBC) {
1583  switch (ba) {
1584  case 38: return 160;
1585  case 50: return 240;
1586  }
1587  }
1588  }
1589 
1590  if (frame_bytes > 0) {
1591  /* calc from frame_bytes only */
1592  if (id == AV_CODEC_ID_TRUESPEECH)
1593  return 240 * (frame_bytes / 32);
1594  if (id == AV_CODEC_ID_NELLYMOSER)
1595  return 256 * (frame_bytes / 64);
1596  if (id == AV_CODEC_ID_RA_144)
1597  return 160 * (frame_bytes / 20);
1598  if (id == AV_CODEC_ID_G723_1)
1599  return 240 * (frame_bytes / 24);
1600 
1601  if (bps > 0) {
1602  /* calc from frame_bytes and bits_per_coded_sample */
1604  return frame_bytes * 8 / bps;
1605  }
1606 
1607  if (ch > 0 && ch < INT_MAX/16) {
1608  /* calc from frame_bytes and channels */
1609  switch (id) {
1610  case AV_CODEC_ID_ADPCM_AFC:
1611  return frame_bytes / (9 * ch) * 16;
1612  case AV_CODEC_ID_ADPCM_PSX:
1613  case AV_CODEC_ID_ADPCM_DTK:
1614  return frame_bytes / (16 * ch) * 28;
1615  case AV_CODEC_ID_ADPCM_4XM:
1618  return (frame_bytes - 4 * ch) * 2 / ch;
1620  return (frame_bytes - 4) * 2 / ch;
1622  return (frame_bytes - 8) * 2 / ch;
1623  case AV_CODEC_ID_ADPCM_THP:
1625  if (extradata)
1626  return frame_bytes * 14 / (8 * ch);
1627  break;
1628  case AV_CODEC_ID_ADPCM_XA:
1629  return (frame_bytes / 128) * 224 / ch;
1631  return (frame_bytes - 6 - ch) / ch;
1632  case AV_CODEC_ID_ROQ_DPCM:
1633  return (frame_bytes - 8) / ch;
1634  case AV_CODEC_ID_XAN_DPCM:
1635  return (frame_bytes - 2 * ch) / ch;
1636  case AV_CODEC_ID_MACE3:
1637  return 3 * frame_bytes / ch;
1638  case AV_CODEC_ID_MACE6:
1639  return 6 * frame_bytes / ch;
1640  case AV_CODEC_ID_PCM_LXF:
1641  return 2 * (frame_bytes / (5 * ch));
1642  case AV_CODEC_ID_IAC:
1643  case AV_CODEC_ID_IMC:
1644  return 4 * frame_bytes / ch;
1645  }
1646 
1647  if (tag) {
1648  /* calc from frame_bytes, channels, and codec_tag */
1649  if (id == AV_CODEC_ID_SOL_DPCM) {
1650  if (tag == 3)
1651  return frame_bytes / ch;
1652  else
1653  return frame_bytes * 2 / ch;
1654  }
1655  }
1656 
1657  if (ba > 0) {
1658  /* calc from frame_bytes, channels, and block_align */
1659  int blocks = frame_bytes / ba;
1660  switch (id) {
1662  if (bps < 2 || bps > 5)
1663  return 0;
1664  return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1666  return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1668  return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1670  return blocks * ((ba - 4 * ch) * 2 / ch);
1671  case AV_CODEC_ID_ADPCM_MS:
1672  return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1674  return blocks * (ba - 16) * 2 / ch;
1675  }
1676  }
1677 
1678  if (bps > 0) {
1679  /* calc from frame_bytes, channels, and bits_per_coded_sample */
1680  switch (id) {
1681  case AV_CODEC_ID_PCM_DVD:
1682  if(bps<4 || frame_bytes<3)
1683  return 0;
1684  return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1686  if(bps<4 || frame_bytes<4)
1687  return 0;
1688  return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1689  case AV_CODEC_ID_S302M:
1690  return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1691  }
1692  }
1693  }
1694  }
1695 
1696  /* Fall back on using frame_size */
1697  if (frame_size > 1 && frame_bytes)
1698  return frame_size;
1699 
1700  //For WMA we currently have no other means to calculate duration thus we
1701  //do it here by assuming CBR, which is true for all known cases.
1702  if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1703  if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1704  return (frame_bytes * 8LL * sr) / bitrate;
1705  }
1706 
1707  return 0;
1708 }
1709 
1710 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1711 {
1712  return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1713  avctx->channels, avctx->block_align,
1714  avctx->codec_tag, avctx->bits_per_coded_sample,
1715  avctx->bit_rate, avctx->extradata, avctx->frame_size,
1716  frame_bytes);
1717 }
1718 
1720 {
1721  return get_audio_frame_duration(par->codec_id, par->sample_rate,
1722  par->channels, par->block_align,
1723  par->codec_tag, par->bits_per_coded_sample,
1724  par->bit_rate, par->extradata, par->frame_size,
1725  frame_bytes);
1726 }
1727 
1728 #if !HAVE_THREADS
1730 {
1731  return -1;
1732 }
1733 
1734 #endif
1735 
1736 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1737 {
1738  unsigned int n = 0;
1739 
1740  while (v >= 0xff) {
1741  *s++ = 0xff;
1742  v -= 0xff;
1743  n++;
1744  }
1745  *s = v;
1746  n++;
1747  return n;
1748 }
1749 
1750 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1751 {
1752  int i;
1753  for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1754  return i;
1755 }
1756 
1758 {
1759  int i;
1760  if (!codec->hw_configs || index < 0)
1761  return NULL;
1762  for (i = 0; i <= index; i++)
1763  if (!codec->hw_configs[i])
1764  return NULL;
1765  return &codec->hw_configs[index]->public;
1766 }
1767 
1768 #if FF_API_USER_VISIBLE_AVHWACCEL
1770 {
1771  return NULL;
1772 }
1773 
1775 {
1776 }
1777 #endif
1778 
1779 #if FF_API_LOCKMGR
1780 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1781 {
1782  return 0;
1783 }
1784 #endif
1785 
1786 unsigned int avpriv_toupper4(unsigned int x)
1787 {
1788  return av_toupper(x & 0xFF) +
1789  (av_toupper((x >> 8) & 0xFF) << 8) +
1790  (av_toupper((x >> 16) & 0xFF) << 16) +
1791 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1792 }
1793 
1795 {
1796  int ret;
1797 
1798  dst->owner[0] = src->owner[0];
1799  dst->owner[1] = src->owner[1];
1800 
1801  ret = av_frame_ref(dst->f, src->f);
1802  if (ret < 0)
1803  return ret;
1804 
1805  av_assert0(!dst->progress);
1806 
1807  if (src->progress &&
1808  !(dst->progress = av_buffer_ref(src->progress))) {
1809  ff_thread_release_buffer(dst->owner[0], dst);
1810  return AVERROR(ENOMEM);
1811  }
1812 
1813  return 0;
1814 }
1815 
1816 #if !HAVE_THREADS
1817 
1819 {
1820  return ff_get_format(avctx, fmt);
1821 }
1822 
1824 {
1825  f->owner[0] = f->owner[1] = avctx;
1826  return ff_get_buffer(avctx, f->f, flags);
1827 }
1828 
1830 {
1831  if (f->f)
1832  av_frame_unref(f->f);
1833 }
1834 
1836 {
1837 }
1838 
1839 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
1840 {
1841 }
1842 
1843 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1844 {
1845 }
1846 
1848 {
1849  return 1;
1850 }
1851 
1853 {
1854  return 0;
1855 }
1856 
1858 {
1859 }
1860 
1861 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1862 {
1863 }
1864 
1865 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
1866 {
1867 }
1868 
1869 #endif
1870 
1872 {
1873  return !!s->internal;
1874 }
1875 
1876 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
1877 {
1878  int ret;
1879  char *str;
1880 
1881  ret = av_bprint_finalize(buf, &str);
1882  if (ret < 0)
1883  return ret;
1884  if (!av_bprint_is_complete(buf)) {
1885  av_free(str);
1886  return AVERROR(ENOMEM);
1887  }
1888 
1889  avctx->extradata = str;
1890  /* Note: the string is NUL terminated (so extradata can be read as a
1891  * string), but the ending character is not accounted in the size (in
1892  * binary formats you are likely not supposed to mux that character). When
1893  * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
1894  * zeros. */
1895  avctx->extradata_size = buf->len;
1896  return 0;
1897 }
1898 
1899 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
1900  const uint8_t *end,
1901  uint32_t *av_restrict state)
1902 {
1903  int i;
1904 
1905  av_assert0(p <= end);
1906  if (p >= end)
1907  return end;
1908 
1909  for (i = 0; i < 3; i++) {
1910  uint32_t tmp = *state << 8;
1911  *state = tmp + *(p++);
1912  if (tmp == 0x100 || p == end)
1913  return p;
1914  }
1915 
1916  while (p < end) {
1917  if (p[-1] > 1 ) p += 3;
1918  else if (p[-2] ) p += 2;
1919  else if (p[-3]|(p[-1]-1)) p++;
1920  else {
1921  p++;
1922  break;
1923  }
1924  }
1925 
1926  p = FFMIN(p, end) - 4;
1927  *state = AV_RB32(p);
1928 
1929  return p + 4;
1930 }
1931 
1933 {
1934  AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
1935  if (!props)
1936  return NULL;
1937 
1938  if (size)
1939  *size = sizeof(*props);
1940 
1941  props->vbv_delay = UINT64_MAX;
1942 
1943  return props;
1944 }
1945 
1947 {
1949  AVCPBProperties *props;
1950  size_t size;
1951 
1952  props = av_cpb_properties_alloc(&size);
1953  if (!props)
1954  return NULL;
1955 
1956  tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
1957  if (!tmp) {
1958  av_freep(&props);
1959  return NULL;
1960  }
1961 
1962  avctx->coded_side_data = tmp;
1963  avctx->nb_coded_side_data++;
1964 
1966  avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
1967  avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
1968 
1969  return props;
1970 }
1971 
1973 {
1974  av_freep(&par->extradata);
1975 
1976  memset(par, 0, sizeof(*par));
1977 
1979  par->codec_id = AV_CODEC_ID_NONE;
1980  par->format = -1;
1987  par->sample_aspect_ratio = (AVRational){ 0, 1 };
1988  par->profile = FF_PROFILE_UNKNOWN;
1989  par->level = FF_LEVEL_UNKNOWN;
1990 }
1991 
1993 {
1994  AVCodecParameters *par = av_mallocz(sizeof(*par));
1995 
1996  if (!par)
1997  return NULL;
1999  return par;
2000 }
2001 
2003 {
2004  AVCodecParameters *par = *ppar;
2005 
2006  if (!par)
2007  return;
2009 
2010  av_freep(ppar);
2011 }
2012 
2014 {
2016  memcpy(dst, src, sizeof(*dst));
2017 
2018  dst->extradata = NULL;
2019  dst->extradata_size = 0;
2020  if (src->extradata) {
2022  if (!dst->extradata)
2023  return AVERROR(ENOMEM);
2024  memcpy(dst->extradata, src->extradata, src->extradata_size);
2025  dst->extradata_size = src->extradata_size;
2026  }
2027 
2028  return 0;
2029 }
2030 
2032  const AVCodecContext *codec)
2033 {
2035 
2036  par->codec_type = codec->codec_type;
2037  par->codec_id = codec->codec_id;
2038  par->codec_tag = codec->codec_tag;
2039 
2040  par->bit_rate = codec->bit_rate;
2043  par->profile = codec->profile;
2044  par->level = codec->level;
2045 
2046  switch (par->codec_type) {
2047  case AVMEDIA_TYPE_VIDEO:
2048  par->format = codec->pix_fmt;
2049  par->width = codec->width;
2050  par->height = codec->height;
2051  par->field_order = codec->field_order;
2052  par->color_range = codec->color_range;
2053  par->color_primaries = codec->color_primaries;
2054  par->color_trc = codec->color_trc;
2055  par->color_space = codec->colorspace;
2058  par->video_delay = codec->has_b_frames;
2059  break;
2060  case AVMEDIA_TYPE_AUDIO:
2061  par->format = codec->sample_fmt;
2062  par->channel_layout = codec->channel_layout;
2063  par->channels = codec->channels;
2064  par->sample_rate = codec->sample_rate;
2065  par->block_align = codec->block_align;
2066  par->frame_size = codec->frame_size;
2067  par->initial_padding = codec->initial_padding;
2068  par->trailing_padding = codec->trailing_padding;
2069  par->seek_preroll = codec->seek_preroll;
2070  break;
2071  case AVMEDIA_TYPE_SUBTITLE:
2072  par->width = codec->width;
2073  par->height = codec->height;
2074  break;
2075  }
2076 
2077  if (codec->extradata) {
2079  if (!par->extradata)
2080  return AVERROR(ENOMEM);
2081  memcpy(par->extradata, codec->extradata, codec->extradata_size);
2082  par->extradata_size = codec->extradata_size;
2083  }
2084 
2085  return 0;
2086 }
2087 
2089  const AVCodecParameters *par)
2090 {
2091  codec->codec_type = par->codec_type;
2092  codec->codec_id = par->codec_id;
2093  codec->codec_tag = par->codec_tag;
2094 
2095  codec->bit_rate = par->bit_rate;
2098  codec->profile = par->profile;
2099  codec->level = par->level;
2100 
2101  switch (par->codec_type) {
2102  case AVMEDIA_TYPE_VIDEO:
2103  codec->pix_fmt = par->format;
2104  codec->width = par->width;
2105  codec->height = par->height;
2106  codec->field_order = par->field_order;
2107  codec->color_range = par->color_range;
2108  codec->color_primaries = par->color_primaries;
2109  codec->color_trc = par->color_trc;
2110  codec->colorspace = par->color_space;
2113  codec->has_b_frames = par->video_delay;
2114  break;
2115  case AVMEDIA_TYPE_AUDIO:
2116  codec->sample_fmt = par->format;
2117  codec->channel_layout = par->channel_layout;
2118  codec->channels = par->channels;
2119  codec->sample_rate = par->sample_rate;
2120  codec->block_align = par->block_align;
2121  codec->frame_size = par->frame_size;
2122  codec->delay =
2123  codec->initial_padding = par->initial_padding;
2124  codec->trailing_padding = par->trailing_padding;
2125  codec->seek_preroll = par->seek_preroll;
2126  break;
2127  case AVMEDIA_TYPE_SUBTITLE:
2128  codec->width = par->width;
2129  codec->height = par->height;
2130  break;
2131  }
2132 
2133  if (par->extradata) {
2134  av_freep(&codec->extradata);
2136  if (!codec->extradata)
2137  return AVERROR(ENOMEM);
2138  memcpy(codec->extradata, par->extradata, par->extradata_size);
2139  codec->extradata_size = par->extradata_size;
2140  }
2141 
2142  return 0;
2143 }
2144 
2145 int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
2146  void **data, size_t *sei_size)
2147 {
2148  AVFrameSideData *side_data = NULL;
2149  uint8_t *sei_data;
2150 
2151  if (frame)
2152  side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
2153 
2154  if (!side_data) {
2155  *data = NULL;
2156  return 0;
2157  }
2158 
2159  *sei_size = side_data->size + 11;
2160  *data = av_mallocz(*sei_size + prefix_len);
2161  if (!*data)
2162  return AVERROR(ENOMEM);
2163  sei_data = (uint8_t*)*data + prefix_len;
2164 
2165  // country code
2166  sei_data[0] = 181;
2167  sei_data[1] = 0;
2168  sei_data[2] = 49;
2169 
2170  /**
2171  * 'GA94' is standard in North America for ATSC, but hard coding
2172  * this style may not be the right thing to do -- other formats
2173  * do exist. This information is not available in the side_data
2174  * so we are going with this right now.
2175  */
2176  AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
2177  sei_data[7] = 3;
2178  sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
2179  sei_data[9] = 0;
2180 
2181  memcpy(sei_data + 10, side_data->data, side_data->size);
2182 
2183  sei_data[side_data->size+10] = 255;
2184 
2185  return 0;
2186 }
2187 
2189 {
2190  AVRational framerate = avctx->framerate;
2191  int bits_per_coded_sample = avctx->bits_per_coded_sample;
2192  int64_t bitrate;
2193 
2194  if (!(framerate.num && framerate.den))
2195  framerate = av_inv_q(avctx->time_base);
2196  if (!(framerate.num && framerate.den))
2197  return 0;
2198 
2199  if (!bits_per_coded_sample) {
2201  bits_per_coded_sample = av_get_bits_per_pixel(desc);
2202  }
2203  bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2204  framerate.num / framerate.den;
2205 
2206  return bitrate;
2207 }
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:2188
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
Definition: internal.h:48
#define FF_SANE_NB_CHANNELS
Definition: internal.h:86
#define FF_COMPLIANCE_EXPERIMENTAL
Allow nonstandardized experimental things.
Definition: avcodec.h:2597
packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
Definition: pixfmt.h:81
AVCodecHWConfig public
This is the structure which will be returned to the user by avcodec_get_hw_config().
Definition: hwaccel.h:34
enum AVChromaLocation chroma_location
Definition: avcodec.h:3990
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:3114
#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:1326
const struct AVCodec * codec
Definition: avcodec.h:1542
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:3056
enum AVFieldOrder field_order
Video only.
Definition: avcodec.h:3981
static int64_t get_bit_rate(AVCodecContext *ctx)
Definition: utils.c:490
const AVCodecDescriptor * codec_descriptor
AVCodecDescriptor.
Definition: avcodec.h:3077
planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
Definition: pixfmt.h:275
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:252
enum AVColorTransferCharacteristic color_trc
Definition: avcodec.h:3988
Number of sample formats. DO NOT USE if linking dynamically.
Definition: samplefmt.h:74
#define AV_NUM_DATA_POINTERS
Definition: frame.h:227
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:3113
static AVMutex mutex
Definition: log.c:44
int64_t pts_correction_num_faulty_dts
Number of incorrect PTS values so far.
Definition: avcodec.h:3094
void av_buffer_unref(AVBufferRef **buf)
Free a given reference and automatically free the buffer if there are no more references to it...
Definition: buffer.c:125
unsigned int fourcc
Definition: raw.h:36
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2446
This structure describes decoded (raw) audio or video data.
Definition: frame.h:226
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
Definition: allcodecs.c:875
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:101
planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:249
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:159
const struct AVCodecHWConfigInternal ** hw_configs
Array of pointers to hardware configurations supported by the codec, or NULL if no hardware supported...
Definition: avcodec.h:3565
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:1721
const char * fmt
Definition: avisynth_c.h:769
AVPacket * last_pkt_props
Properties (timestamps+side data) extracted from the last packet passed for decoding.
Definition: internal.h:172
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
misc image utilities
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
AVFrame * f
Definition: thread.h:35
int64_t bit_rate
the average bitrate
Definition: avcodec.h:1583
AVFrame * to_free
Definition: internal.h:159
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
const char * g
Definition: vf_curves.c:115
const char * desc
Definition: nvenc.c:65
#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:2398
AVRational sample_aspect_ratio
Video only.
Definition: avcodec.h:3976
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:2435
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:250
channels
Definition: aptx.c:30
void av_opt_set_defaults(void *s)
Set the values of all AVOption fields to their default values.
Definition: opt.c:1305
const char * avcodec_configuration(void)
Return the libavcodec build-time configuration.
Definition: utils.c:1410
uint32_t fourcc
Definition: vaapi_decode.c:238
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:2164
int ff_decode_bsfs_init(AVCodecContext *avctx)
Definition: decode.c:185
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: avcodec.h:3900
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
int num
Numerator.
Definition: rational.h:59
static int ff_mutex_lock(AVMutex *mutex)
Definition: thread.h:155
#define FF_SUB_CHARENC_MODE_DO_NOTHING
do nothing (demuxer outputs a stream supposed to be already in UTF-8, or the codec is bitmap for inst...
Definition: avcodec.h:3112
static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
Definition: utils.c:514
const char * b
Definition: vf_curves.c:116
const char * avcodec_license(void)
Return the libavcodec license.
Definition: utils.c:1415
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:1912
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:1743
enum AVPixelFormat pix_fmt
Definition: raw.h:35
int av_dict_copy(AVDictionary **dst, const AVDictionary *src, int flags)
Copy entries from one AVDictionary struct into another.
Definition: dict.c:217
enum AVPixelFormat format
The pixel format identifying the underlying HW surface type.
Definition: hwcontext.h:208
unsigned num_rects
Definition: avcodec.h:3880
int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec)
Definition: utils.c:486
void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
Same behaviour av_fast_malloc but the buffer has additional AV_INPUT_BUFFER_PADDING_SIZE at the end w...
Definition: utils.c:70
planar GBR 4:4:4 36bpp, little-endian
Definition: pixfmt.h:255
The following 12 formats have the disadvantage of needing 1 format for each bit depth.
Definition: pixfmt.h:156
#define AV_CODEC_CAP_EXPERIMENTAL
Codec is experimental and is thus avoided in favor of non experimental encoders.
Definition: avcodec.h:1016
mpegvideo header.
enum AVMediaType type
Definition: avcodec.h:3437
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:236
AVBufferPool * pools[4]
Pools for each data plane.
Definition: internal.h:105
int(* decode)(AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt)
Definition: avcodec.h:3522
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:2757
enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
Wrapper around get_format() for frame-multithreaded codecs.
Definition: utils.c:1818
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:1780
int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
Converts AVChromaLocation to swscale x/y chroma position.
Definition: utils.c:349
#define AV_CODEC_CAP_AUTO_THREADS
Codec supports avctx->thread_count == 0 (auto).
Definition: avcodec.h:1036
const struct AVHWAccel * hwaccel
Hardware accelerator in use.
Definition: avcodec.h:2690
int trailing_padding
Audio only.
Definition: avcodec.h:4036
#define src
Definition: vp8dsp.c:254
int profile
profile
Definition: avcodec.h:2859
planar GBR 4:4:4 36bpp, big-endian
Definition: pixfmt.h:254
AVCodec.
Definition: avcodec.h:3424
planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:131
int block_align
number of bytes per packet if constant and known or 0 Used by some WAV based audio codecs...
Definition: avcodec.h:2226
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
This struct describes the properties of an encoded stream.
Definition: avcodec.h:3892
AVLockOp
Lock operation used by lockmgr.
Definition: avcodec.h:6069
int av_bprint_finalize(AVBPrint *buf, char **ret_str)
Finalize a print buffer.
Definition: bprint.c:235
int ff_set_dimensions(AVCodecContext *s, int width, int height)
Check that the provided frame dimensions are valid and set them on the codec context.
Definition: utils.c:104
char * text
0 terminated plain UTF-8 text
Definition: avcodec.h:3864
enum AVColorSpace color_space
Definition: avcodec.h:3989
const char * av_color_space_name(enum AVColorSpace space)
Definition: pixdesc.c:2839
Macro definitions for various function/variable attributes.
void ff_decode_bsfs_uninit(AVCodecContext *avctx)
Definition: decode.c:2007
int frame_size
Audio only.
Definition: avcodec.h:4021
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:1656
int av_get_channel_layout_nb_channels(uint64_t channel_layout)
Return the number of channels in the channel layout.
AVFrameSideData * av_frame_get_side_data(const AVFrame *frame, enum AVFrameSideDataType type)
Definition: frame.c:734
AVSubtitleRect ** rects
Definition: avcodec.h:3881
int av_codec_is_decoder(const AVCodec *codec)
Definition: utils.c:99
void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
Definition: utils.c:1861
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:372
int av_codec_is_encoder(const AVCodec *codec)
Definition: utils.c:94
uint64_t vbv_delay
The delay between the time the packet this structure is associated with is received and the time when...
Definition: avcodec.h:1138
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:334
#define FF_LEVEL_UNKNOWN
Definition: avcodec.h:2970
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
planar GBRA 4:4:4:4 64bpp, big-endian
Definition: pixfmt.h:216
Public dictionary API.
planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
Definition: pixfmt.h:190
static double cb(void *priv, double x, double y)
Definition: vf_geq.c:112
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
Definition: internal.h:40
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101
void av_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
Definition: avpacket.c:62
enum AVSampleFormat sample_fmt
audio sample format
Definition: avcodec.h:2197
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_cold
Definition: attributes.h:82
AV_SAMPLE_FMT_U8
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:189
Opaque data information usually continuous.
Definition: avutil.h:203
int width
Video only.
Definition: avcodec.h:3966
8 bits with AV_PIX_FMT_RGB32 palette
Definition: pixfmt.h:77
AVOptions.
AVCodecParameters * avcodec_parameters_alloc(void)
Allocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0).
Definition: utils.c:1992
#define f(width, name)
Definition: cbs_vp9.c:255
const char * av_color_range_name(enum AVColorRange range)
Definition: pixdesc.c:2772
void * thread_ctx
Definition: internal.h:163
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
int ff_side_data_update_matrix_encoding(AVFrame *frame, enum AVMatrixEncoding matrix_encoding)
Add or update AV_FRAME_DATA_MATRIXENCODING side data.
Definition: utils.c:134
int trailing_padding
Audio only.
Definition: avcodec.h:3235
Multithreading support functions.
#define AV_NE(be, le)
Definition: common.h:50
int av_frame_ref(AVFrame *dst, const AVFrame *src)
Set up a new reference to the data described by the source frame.
Definition: frame.c:443
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:251
#define FF_CODEC_PROPERTY_LOSSLESS
Definition: avcodec.h:3179
#define LIBAVCODEC_VERSION_INT
Definition: version.h:34
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1634
#define LICENSE_PREFIX
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_RB32
Definition: bytestream.h:87
int avcodec_parameters_to_context(AVCodecContext *codec, const AVCodecParameters *par)
Fill the codec context based on the values from the supplied codec parameters.
Definition: utils.c:2088
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:1946
Public header for CRC hash function implementation.
void * frame_thread_encoder
Definition: internal.h:180
int initial_padding
Audio only.
Definition: avcodec.h:4029
Structure to hold side data for an AVFrame.
Definition: frame.h:188
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:526
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:1483
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:194
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
uint8_t * data
Definition: avcodec.h:1389
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:1522
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
Definition: avcodec.h:2765
int av_codec_get_max_lowres(const AVCodec *codec)
Definition: utils.c:480
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:1750
ptrdiff_t size
Definition: opengl_enc.c:101
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:2750
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:870
signed 32 bits
Definition: samplefmt.h:62
void * av_realloc_array(void *ptr, size_t nmemb, size_t size)
Definition: mem.c:198
AVCPBProperties * av_cpb_properties_alloc(size_t *size)
Allocate a CPB properties structure and initialize its fields to default values.
Definition: utils.c:1932
enum AVChromaLocation chroma_sample_location
This defines the location of chroma samples.
Definition: avcodec.h:2171
static void codec_parameters_reset(AVCodecParameters *par)
Definition: utils.c:1972
#define FFALIGN(x, a)
Definition: macros.h:48
uint64_t channel_layout
Audio only.
Definition: avcodec.h:4002
#define av_log(a,...)
int av_sample_fmt_is_planar(enum AVSampleFormat sample_fmt)
Check if the sample format is planar.
Definition: samplefmt.c:112
FramePool * pool
Definition: internal.h:161
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
Definition: avcodec.h:3929
#define FF_COMPLIANCE_UNOFFICIAL
Allow unofficial extensions.
Definition: avcodec.h:2596
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:1774
planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:157
int(* send_frame)(AVCodecContext *avctx, const AVFrame *frame)
Encode API with decoupled packet/frame dataflow.
Definition: avcodec.h:3532
Libavcodec version macros.
int(* close)(AVCodecContext *)
Definition: avcodec.h:3523
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:1069
enum AVCodecID id
Definition: avcodec.h:3438
const uint64_t * channel_layouts
array of support channel layouts, or NULL if unknown. array is terminated by 0
Definition: avcodec.h:3448
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:2863
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:176
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: avcodec.h:215
unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
Definition: utils.c:475
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Copy the contents of src to dst.
Definition: utils.c:2013
int width
Definition: frame.h:284
#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:1823
int av_get_bits_per_sample(enum AVCodecID codec_id)
Return codec bits per sample.
Definition: utils.c:1504
#define AVMutex
Definition: thread.h:151
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
#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:1786
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:202
int qmax
maximum quantizer
Definition: avcodec.h:2378
int64_t pts_correction_last_pts
Number of incorrect DTS values so far.
Definition: avcodec.h:3095
int active_thread_type
Which multithreading methods are in use by the codec.
Definition: avcodec.h:2804
enum AVColorPrimaries color_primaries
Definition: avcodec.h:3987
int avcodec_is_open(AVCodecContext *s)
Definition: utils.c:1871
int video_delay
Video only.
Definition: avcodec.h:3995
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:442
AVFrame * buffer_frame
Definition: internal.h:202
int capabilities
Codec capabilities.
Definition: avcodec.h:3443
int initial_padding
Audio only.
Definition: avcodec.h:3047
#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:1729
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values. ...
Definition: dict.c:203
preferred ID for decoding MPEG audio layer 1, 2 or 3
Definition: avcodec.h:559
#define av_fourcc2str(fourcc)
Definition: avutil.h:348
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), big-endian
Definition: pixfmt.h:182
enum AVMediaType codec_type
General type of the encoded data.
Definition: avcodec.h:3896
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:1613
simple assert() macros that are a bit more flexible than ISO C assert().
planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:248
int64_t av_gcd(int64_t a, int64_t b)
Compute the greatest common divisor of two integer operands.
Definition: mathematics.c:37
enum AVPacketSideDataType type
Definition: avcodec.h:1391
int av_log_get_level(void)
Get the current log level.
Definition: log.c:380
const char * name
Name of the codec implementation.
Definition: avcodec.h:3431
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:3243
const struct AVProfile * profiles
If non-NULL, an array of profiles recognized for this codec.
Definition: avcodec.h:735
GLsizei count
Definition: opengl_enc.c:109
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), little-endian
Definition: pixfmt.h:183
void ff_thread_free(AVCodecContext *avctx)
Definition: pthread.c:82
#define FFMAX(a, b)
Definition: common.h:94
void avcodec_parameters_free(AVCodecParameters **ppar)
Free an AVCodecParameters instance and everything associated with it and write NULL to the supplied p...
Definition: utils.c:2002
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:1719
const char av_codec_ffversion[]
Definition: utils.c:66
static int ff_mutex_unlock(AVMutex *mutex)
Definition: thread.h:156
const char * av_color_primaries_name(enum AVColorPrimaries primaries)
Definition: pixdesc.c:2791
reference-counted frame API
const AVCodecDescriptor * avcodec_descriptor_get(enum AVCodecID id)
Definition: codec_desc.c:3199
uint64_t channel_layout
Audio channel layout.
Definition: avcodec.h:2240
int extradata_size
Size of the extradata content in bytes.
Definition: avcodec.h:3918
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:2392
int props
Codec properties, a combination of AV_CODEC_PROP_* flags.
Definition: avcodec.h:724
int(* encode_sub)(AVCodecContext *, uint8_t *buf, int buf_size, const struct AVSubtitle *sub)
Definition: avcodec.h:3508
static struct @303 state
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:245
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:106
int refs
number of reference frames
Definition: avcodec.h:2117
planar GBR 4:4:4:4 48bpp, big-endian
Definition: pixfmt.h:287
int block_align
Audio only.
Definition: avcodec.h:4017
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
#define AV_MUTEX_INITIALIZER
Definition: thread.h:152
audio channel layout utility functions
enum AVPixelFormat * pix_fmts
array of supported pixel formats, or NULL if unknown, array is terminated by -1
Definition: avcodec.h:3445
#define FF_THREAD_FRAME
Decode more than one frame at once.
Definition: avcodec.h:2796
#define FFMIN(a, b)
Definition: common.h:96
AVPacketSideData * coded_side_data
Additional data associated with the entire coded stream.
Definition: avcodec.h:3188
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:1421
AVFrame * compat_decode_frame
Definition: internal.h:213
void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
Definition: utils.c:1865
int width
picture width / height.
Definition: avcodec.h:1706
static void ff_unlock_avcodec(const AVCodec *codec)
Definition: utils.c:520
AVBufferRef * hw_frames_ctx
A reference to the AVHWFramesContext describing the input (for encoding) or output (decoding) frames...
Definition: avcodec.h:3213
#define FF_PROFILE_UNKNOWN
Definition: avcodec.h:2860
int priv_data_size
Definition: avcodec.h:3472
int profile
Definition: avcodec.h:3358
AVPacket * in_pkt
Definition: internal.h:120
AVFormatContext * ctx
Definition: movenc.c:48
#define AV_CODEC_FLAG_PASS1
Use internal 2pass ratecontrol in first pass mode.
Definition: avcodec.h:858
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:2143
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:2969
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:1835
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), big-endian
Definition: pixfmt.h:180
const AVProfile * profiles
array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN} ...
Definition: avcodec.h:3451
int n
Definition: avisynth_c.h:684
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:1665
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:364
enum AVColorRange color_range
Video only.
Definition: avcodec.h:3986
Usually treated as AVMEDIA_TYPE_DATA.
Definition: avutil.h:200
Opaque data information usually sparse.
Definition: avutil.h:205
const char * av_get_colorspace_name(enum AVColorSpace val)
Get the name of a colorspace.
Definition: frame.c:122
DecodeSimpleContext ds
Definition: internal.h:165
enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags, unsigned int fourcc)
Definition: utils.c:457
char * sub_charenc
DTS of the last frame.
Definition: avcodec.h:3103
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:3859
#define FF_ARRAY_ELEMS(a)
#define AVERROR_EXPERIMENTAL
Requested feature is flagged experimental. Set strict_std_compliance if you really want to use it...
Definition: error.h:72
const char * avcodec_get_name(enum AVCodecID id)
Get the name of a codec.
Definition: utils.c:1135
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:2785
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:512
int sub_charenc_mode
Subtitles character encoding mode.
Definition: avcodec.h:3111
void av_get_channel_layout_string(char *buf, int buf_size, int nb_channels, uint64_t channel_layout)
Return a description of a channel layout.
planar GBR 4:4:4:4 48bpp, little-endian
Definition: pixfmt.h:288
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:299
const AVS_VideoInfo int align
Definition: avisynth_c.h:795
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:1370
int frame_size
Number of samples per channel in an audio frame.
Definition: avcodec.h:2209
This structure describes the bitrate properties of an encoded bitstream.
Definition: avcodec.h:1108
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:2092
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:1769
Libavcodec external API header.
enum AVMediaType codec_type
Definition: avcodec.h:1541
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:1482
enum AVCodecID codec_id
Definition: avcodec.h:1543
int seek_preroll
Number of samples to skip after a discontinuity.
Definition: avcodec.h:3136
int av_opt_set_dict(void *obj, AVDictionary **options)
Set all the options from a given dictionary on an object.
Definition: opt.c:1603
int sample_rate
samples per second
Definition: avcodec.h:2189
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:257
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:1757
planar GBR 4:4:4 30bpp, big-endian
Definition: pixfmt.h:172
main external API structure.
Definition: avcodec.h:1533
AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
Definition: allcodecs.c:880
int skip_samples_multiplier
Definition: internal.h:217
planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
Definition: pixfmt.h:192
uint8_t * data
The data buffer.
Definition: buffer.h:89
int qmin
minimum quantizer
Definition: avcodec.h:2371
uint8_t pi<< 24) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_U8,(uint64_t)((*(constuint8_t *) pi-0x80U))<< 56) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S16,(uint64_t)(*(constint16_t *) pi)<< 48) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S32,(uint64_t)(*(constint32_t *) pi)<< 32) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S64,(*(constint64_t *) pi >>56)+0x80) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S64,*(constint64_t *) pi *(1.0f/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64,*(constint64_t *) pi *(1.0/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(constfloat *) pi *(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(constdouble *) pi *(INT64_C(1)<< 63)))#defineFMT_PAIR_FUNC(out, in) staticconv_func_type *constfmt_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),};staticvoidcpy1(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, len);}staticvoidcpy2(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 2 *len);}staticvoidcpy4(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 4 *len);}staticvoidcpy8(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 8 *len);}AudioConvert *swri_audio_convert_alloc(enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, constint *ch_map, intflags){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) returnNULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) returnNULL;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)){case1:ctx->simd_f=cpy1;break;case2:ctx->simd_f=cpy2;break;case4:ctx->simd_f=cpy4;break;case8:ctx->simd_f=cpy8;break;}}if(HAVE_X86ASM &&1) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);returnctx;}voidswri_audio_convert_free(AudioConvert **ctx){av_freep(ctx);}intswri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, intlen){intch;intoff=0;constintos=(out->planar?1:out->ch_count)*out->bps;unsignedmisaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask){intplanes=in->planar?in->ch_count:1;unsignedm=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){intplanes=out->planar?out->ch_count:1;unsignedm=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){intplanes=out->planar?out->ch_count:1;for(ch=0;ch< planes;ch++){ctx->simd_f(out-> ch const uint8_t **in ch off *out planar
Definition: audioconvert.c:56
void avsubtitle_free(AVSubtitle *sub)
Free all allocated data in the given subtitle struct.
Definition: utils.c:1050
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
Definition: avcodec.h:1558
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:1918
static void encode(AVCodecContext *ctx, AVFrame *frame, AVPacket *pkt, FILE *output)
Definition: encode_audio.c:95
uint8_t * data
Definition: frame.h:190
planar YUV 4:4:0,24bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
Definition: pixfmt.h:277
#define AV_CODEC_PROP_BITMAP_SUB
Subtitle codec is bitmap based Decoded AVSubtitle data can be read from the AVSubtitleRect->pict fiel...
Definition: avcodec.h:767
planar GBR 4:4:4 42bpp, little-endian
Definition: pixfmt.h:257
void * buf
Definition: avisynth_c.h:690
int extradata_size
Definition: avcodec.h:1635
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
Encode extradata length to a buffer.
Definition: utils.c:1736
int nb_coded_side_data
Definition: avcodec.h:3189
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:1721
Describe the class of an AVClass context structure.
Definition: log.h:67
#define FF_CODEC_PROPERTY_CLOSED_CAPTIONS
Definition: avcodec.h:3180
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition: pixfmt.h:195
AVFrameSideData * av_frame_new_side_data(AVFrame *frame, enum AVFrameSideDataType type, int size)
Add a new side data to a frame.
Definition: frame.c:722
static av_const int av_toupper(int c)
Locale-independent conversion of ASCII characters to uppercase.
Definition: avstring.h:231
Y , 16bpp, big-endian.
Definition: pixfmt.h:97
int index
Definition: gxfenc.c:89
void av_buffer_pool_uninit(AVBufferPool **ppool)
Mark the pool as being available for freeing.
Definition: buffer.c:275
int av_samples_get_buffer_size(int *linesize, int nb_channels, int nb_samples, enum AVSampleFormat sample_fmt, int align)
Get the required buffer size for the given audio parameters.
Definition: samplefmt.c:119
enum AVColorSpace colorspace
YUV colorspace type.
Definition: avcodec.h:2157
Rational number (pair of numerator and denominator).
Definition: rational.h:58
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:2150
void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
Wrapper around release_buffer() frame-for multithreaded codecs.
Definition: utils.c:1829
const char * name
short name for the profile
Definition: avcodec.h:3359
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:2031
This struct describes a set or pool of "hardware" frames (i.e.
Definition: hwcontext.h:123
planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:244
int(* func)(AVBPrint *dst, const char *in, const char *arg)
Definition: jacosubdec.c:67
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
',' separated list of allowed decoders.
Definition: avcodec.h:3171
planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), big-endian
Definition: pixfmt.h:178
const VDPAUPixFmtMap * map
#define STRIDE_ALIGN
Definition: internal.h:97
const char * name
Name of the codec described by this descriptor.
Definition: avcodec.h:716
int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Initialize the AVCodecContext to use the given AVCodec.
Definition: utils.c:538
#define snprintf
Definition: snprintf.h:34
int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
Return audio frame duration.
Definition: utils.c:1710
size_t av_strlcat(char *dst, const char *src, size_t size)
Append the string src to the string dst, but to a total length of no more than size - 1 bytes...
Definition: avstring.c:93
mfxU16 profile
Definition: qsvenc.c:44
int seek_preroll
Audio only.
Definition: avcodec.h:4040
This struct describes the properties of a single codec described by an AVCodecID. ...
Definition: avcodec.h:708
int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
Finalize buf into extradata and set its size appropriately.
Definition: utils.c:1876
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:553
const char * av_get_media_type_string(enum AVMediaType media_type)
Return a string describing the media_type enum, NULL if media_type is unknown.
Definition: utils.c:76
planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
Definition: pixfmt.h:187
#define flags(name, subs,...)
Definition: cbs_av1.c:596
int bits_per_raw_sample
This is the number of valid bits in each output sample.
Definition: avcodec.h:3955
const AVClass * priv_class
AVClass for the private context.
Definition: avcodec.h:3450
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:240
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:408
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
Definition: rational.h:159
int sample_rate
Audio only.
Definition: avcodec.h:4010
enum AVMediaType type
Definition: avcodec.h:710
uint8_t max_lowres
maximum value for lowres supported by the decoder
Definition: avcodec.h:3449
AVPacket * buffer_pkt
buffers for using new encode/decode API through legacy API
Definition: internal.h:200
int64_t bitrate
Definition: h264_levels.c:89
static int op(uint8_t **dst, const uint8_t *dst_end, GetByteContext *gb, int pixel, int count, int *x, int width, int linesize)
Perform decode operation.
Definition: anm.c:78
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:247
Y , 8bpp.
Definition: pixfmt.h:74
void av_opt_free(void *obj)
Free all allocated objects in obj.
Definition: opt.c:1558
const OptionDef options[]
Definition: ffmpeg_opt.c:3324
#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:361
if(ret< 0)
Definition: vf_mcdeint.c:279
#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: avcodec.h:3960
const char * av_color_transfer_name(enum AVColorTransferCharacteristic transfer)
Definition: pixdesc.c:2815
int(* uninit)(AVCodecContext *avctx)
Uninitialize the hwaccel private data.
Definition: avcodec.h:3730
void * hwaccel_priv_data
hwaccel-specific private data
Definition: internal.h:190
void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
Same behaviour av_fast_padded_malloc except that buffer will always be 0-initialized after call...
Definition: utils.c:82
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
AVProfile.
Definition: avcodec.h:3357
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:1847
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:2776
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:1839
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:367
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
int caps_internal
Internal codec capabilities.
Definition: avcodec.h:3550
unsigned properties
Properties of the stream that gets decoded.
Definition: avcodec.h:3178
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:444
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:1484
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition: pixfmt.h:185
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
Definition: avcodec.h:782
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
Definition: utils.c:1175
#define AV_CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:862
static int lowres
Definition: ffplay.c:334
void * priv_data
Definition: avcodec.h:1560
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:1155
int av_samples_fill_arrays(uint8_t **audio_data, int *linesize, const uint8_t *buf, int nb_channels, int nb_samples, enum AVSampleFormat sample_fmt, int align)
Fill plane data pointers and linesize for samples with sample format sample_fmt.
Definition: samplefmt.c:151
#define av_free(p)
uint8_t * dump_separator
dump format separator.
Definition: avcodec.h:3163
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:85
#define TAG_PRINT(x)
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:253
as in Berlin toast format
Definition: avcodec.h:576
int len
int channels
number of audio channels
Definition: avcodec.h:2190
const int * supported_samplerates
array of supported audio samplerates, or NULL if unknown, array is terminated by 0 ...
Definition: avcodec.h:3446
struct AVCodecInternal * internal
Private context used for internal data.
Definition: avcodec.h:1568
unsigned avcodec_version(void)
Return the LIBAVCODEC_VERSION_INT constant.
Definition: utils.c:1398
Y , 16bpp, little-endian.
Definition: pixfmt.h:98
AVPacket * av_packet_alloc(void)
Allocate an AVPacket and set its fields to default values.
Definition: avpacket.c:51
char * ass
0 terminated ASS/SSA compatible event line.
Definition: avcodec.h:3871
This side data corresponds to the AVCPBProperties struct.
Definition: avcodec.h:1257
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:539
signed 64 bits, planar
Definition: samplefmt.h:72
int bits_per_coded_sample
The number of bits per sample in the codedwords.
Definition: avcodec.h:3942
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: avcodec.h:3914
static const struct twinvq_data tab
unsigned int byte_buffer_size
Definition: internal.h:178
int channels
Audio only.
Definition: avcodec.h:4006
void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
Wait for earlier decoding threads to finish reference pictures.
Definition: utils.c:1843
planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
Definition: pixfmt.h:186
static int height
Definition: utils.c:158
AVRational av_mul_q(AVRational b, AVRational c)
Multiply two rationals.
Definition: rational.c:80
int64_t pts_correction_last_dts
PTS of the last frame.
Definition: avcodec.h:3096
int frame_number
Frame counter, set by libavcodec.
Definition: avcodec.h:2220
int height
Definition: frame.h:284
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:3093
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:2186
signed 16 bits, planar
Definition: samplefmt.h:67
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:531
int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
Definition: utils.c:1794
planar GBR 4:4:4 48bpp, little-endian
Definition: pixfmt.h:175
enum AVSampleFormat * sample_fmts
array of supported sample formats, or NULL if unknown, array is terminated by -1
Definition: avcodec.h:3447
AVMatrixEncoding
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
Definition: utils.c:1823
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
Definition: avcodec.h:3904
int ff_alloc_entries(AVCodecContext *avctx, int count)
Definition: utils.c:1852
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:2145
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:2362
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:1899
void ff_reset_entries(AVCodecContext *avctx)
Definition: utils.c:1857
int(* init)(AVCodecContext *)
Definition: avcodec.h:3507
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:273
#define MKTAG(a, b, c, d)
Definition: common.h:366
planar GBRA 4:4:4:4 64bpp, little-endian
Definition: pixfmt.h:217
AVBufferRef * hw_device_ctx
A reference to the AVHWDeviceContext describing the device which will be used by a hardware encoder/d...
Definition: avcodec.h:3265
packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3
Definition: pixfmt.h:82
enum AVPixelFormat sw_format
The pixel format identifying the actual data layout of the hardware frames.
Definition: hwcontext.h:221
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
uint8_t * byte_buffer
temporary buffer used for encoders to store their bitstream
Definition: internal.h:177
const char * avcodec_profile_name(enum AVCodecID codec_id, int profile)
Return a name for the specified profile, if available.
Definition: utils.c:1383
int(* encode2)(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
Encode data to an AVPacket.
Definition: avcodec.h:3520
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:1689
int nb_samples
number of audio samples (per channel) described by this frame
Definition: frame.h:292
#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:2592
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:3063
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:431
#define AV_WL32(p, v)
Definition: intreadwrite.h:426
int64_t rc_max_rate
maximum bitrate
Definition: avcodec.h:2407
uint8_t pi<< 24) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_U8,(uint64_t)((*(constuint8_t *) pi-0x80U))<< 56) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S16,(uint64_t)(*(constint16_t *) pi)<< 48) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S32,(uint64_t)(*(constint32_t *) pi)<< 32) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S64,(*(constint64_t *) pi >>56)+0x80) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S64,*(constint64_t *) pi *(1.0f/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64,*(constint64_t *) pi *(1.0/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(constfloat *) pi *(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(constdouble *) pi *(INT64_C(1)<< 63)))#defineFMT_PAIR_FUNC(out, in) staticconv_func_type *constfmt_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),};staticvoidcpy1(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, len);}staticvoidcpy2(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 2 *len);}staticvoidcpy4(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 4 *len);}staticvoidcpy8(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 8 *len);}AudioConvert *swri_audio_convert_alloc(enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, constint *ch_map, intflags){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) returnNULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) returnNULL;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)){case1:ctx->simd_f=cpy1;break;case2:ctx->simd_f=cpy2;break;case4:ctx->simd_f=cpy4;break;case8:ctx->simd_f=cpy8;break;}}if(HAVE_X86ASM &&1) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);returnctx;}voidswri_audio_convert_free(AudioConvert **ctx){av_freep(ctx);}intswri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, intlen){intch;intoff=0;constintos=(out->planar?1:out->ch_count)*out->bps;unsignedmisaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask){intplanes=in->planar?in->ch_count:1;unsignedm=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){intplanes=out->planar?out->ch_count:1;unsignedm=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){intplanes=out->planar?out->ch_count:1;for(ch=0;ch< planes;ch++){ctx->simd_f(out-> ch ch
Definition: audioconvert.c:56
void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.c:191
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
uint8_t * subtitle_header
Header containing style information for text subtitles.
Definition: avcodec.h:3001
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
int(* receive_frame)(AVCodecContext *avctx, AVFrame *frame)
Decode API with decoupled packet/frame dataflow.
Definition: avcodec.h:3540