FFmpeg
utils.c
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1 /*
2  * utils for libavcodec
3  * Copyright (c) 2001 Fabrice Bellard
4  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 /**
24  * @file
25  * utils.
26  */
27 
28 #include "config.h"
29 #include "libavutil/attributes.h"
30 #include "libavutil/avassert.h"
31 #include "libavutil/avstring.h"
32 #include "libavutil/bprint.h"
34 #include "libavutil/crc.h"
35 #include "libavutil/frame.h"
36 #include "libavutil/hwcontext.h"
37 #include "libavutil/internal.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/mem_internal.h"
40 #include "libavutil/pixdesc.h"
41 #include "libavutil/imgutils.h"
42 #include "libavutil/samplefmt.h"
43 #include "libavutil/dict.h"
44 #include "libavutil/thread.h"
45 #include "avcodec.h"
46 #include "decode.h"
47 #include "hwaccel.h"
48 #include "libavutil/opt.h"
49 #include "mpegvideo.h"
50 #include "thread.h"
51 #include "frame_thread_encoder.h"
52 #include "internal.h"
53 #include "raw.h"
54 #include "bytestream.h"
55 #include "version.h"
56 #include <stdlib.h>
57 #include <stdarg.h>
58 #include <stdatomic.h>
59 #include <limits.h>
60 #include <float.h>
61 #if CONFIG_ICONV
62 # include <iconv.h>
63 #endif
64 
65 #include "libavutil/ffversion.h"
66 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
67 
69 
70 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
71 {
72  uint8_t **p = ptr;
73  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
74  av_freep(p);
75  *size = 0;
76  return;
77  }
78  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
79  memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
80 }
81 
82 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
83 {
84  uint8_t **p = ptr;
85  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
86  av_freep(p);
87  *size = 0;
88  return;
89  }
90  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
91  memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
92 }
93 
94 int av_codec_is_encoder(const AVCodec *codec)
95 {
96  return codec && (codec->encode_sub || codec->encode2 ||codec->send_frame);
97 }
98 
99 int av_codec_is_decoder(const AVCodec *codec)
100 {
101  return codec && (codec->decode || codec->receive_frame);
102 }
103 
105 {
106  int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
107 
108  if (ret < 0)
109  width = height = 0;
110 
111  s->coded_width = width;
112  s->coded_height = height;
113  s->width = AV_CEIL_RSHIFT(width, s->lowres);
114  s->height = AV_CEIL_RSHIFT(height, s->lowres);
115 
116  return ret;
117 }
118 
120 {
121  int ret = av_image_check_sar(avctx->width, avctx->height, sar);
122 
123  if (ret < 0) {
124  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
125  sar.num, sar.den);
126  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
127  return ret;
128  } else {
129  avctx->sample_aspect_ratio = sar;
130  }
131  return 0;
132 }
133 
135  enum AVMatrixEncoding matrix_encoding)
136 {
137  AVFrameSideData *side_data;
138  enum AVMatrixEncoding *data;
139 
141  if (!side_data)
143  sizeof(enum AVMatrixEncoding));
144 
145  if (!side_data)
146  return AVERROR(ENOMEM);
147 
148  data = (enum AVMatrixEncoding*)side_data->data;
149  *data = matrix_encoding;
150 
151  return 0;
152 }
153 
155  int linesize_align[AV_NUM_DATA_POINTERS])
156 {
157  int i;
158  int w_align = 1;
159  int h_align = 1;
161 
162  if (desc) {
163  w_align = 1 << desc->log2_chroma_w;
164  h_align = 1 << desc->log2_chroma_h;
165  }
166 
167  switch (s->pix_fmt) {
168  case AV_PIX_FMT_YUV420P:
169  case AV_PIX_FMT_YUYV422:
170  case AV_PIX_FMT_YVYU422:
171  case AV_PIX_FMT_UYVY422:
172  case AV_PIX_FMT_YUV422P:
173  case AV_PIX_FMT_YUV440P:
174  case AV_PIX_FMT_YUV444P:
175  case AV_PIX_FMT_GBRP:
176  case AV_PIX_FMT_GBRAP:
177  case AV_PIX_FMT_GRAY8:
178  case AV_PIX_FMT_GRAY16BE:
179  case AV_PIX_FMT_GRAY16LE:
180  case AV_PIX_FMT_YUVJ420P:
181  case AV_PIX_FMT_YUVJ422P:
182  case AV_PIX_FMT_YUVJ440P:
183  case AV_PIX_FMT_YUVJ444P:
184  case AV_PIX_FMT_YUVA420P:
185  case AV_PIX_FMT_YUVA422P:
186  case AV_PIX_FMT_YUVA444P:
243  case AV_PIX_FMT_GBRP9LE:
244  case AV_PIX_FMT_GBRP9BE:
245  case AV_PIX_FMT_GBRP10LE:
246  case AV_PIX_FMT_GBRP10BE:
247  case AV_PIX_FMT_GBRP12LE:
248  case AV_PIX_FMT_GBRP12BE:
249  case AV_PIX_FMT_GBRP14LE:
250  case AV_PIX_FMT_GBRP14BE:
251  case AV_PIX_FMT_GBRP16LE:
252  case AV_PIX_FMT_GBRP16BE:
257  w_align = 16; //FIXME assume 16 pixel per macroblock
258  h_align = 16 * 2; // interlaced needs 2 macroblocks height
259  break;
260  case AV_PIX_FMT_YUV411P:
261  case AV_PIX_FMT_YUVJ411P:
263  w_align = 32;
264  h_align = 16 * 2;
265  break;
266  case AV_PIX_FMT_YUV410P:
267  if (s->codec_id == AV_CODEC_ID_SVQ1) {
268  w_align = 64;
269  h_align = 64;
270  }
271  break;
272  case AV_PIX_FMT_RGB555:
273  if (s->codec_id == AV_CODEC_ID_RPZA) {
274  w_align = 4;
275  h_align = 4;
276  }
278  w_align = 8;
279  h_align = 8;
280  }
281  break;
282  case AV_PIX_FMT_PAL8:
283  case AV_PIX_FMT_BGR8:
284  case AV_PIX_FMT_RGB8:
285  if (s->codec_id == AV_CODEC_ID_SMC ||
287  w_align = 4;
288  h_align = 4;
289  }
290  if (s->codec_id == AV_CODEC_ID_JV ||
292  w_align = 8;
293  h_align = 8;
294  }
295  break;
296  case AV_PIX_FMT_BGR24:
297  if ((s->codec_id == AV_CODEC_ID_MSZH) ||
298  (s->codec_id == AV_CODEC_ID_ZLIB)) {
299  w_align = 4;
300  h_align = 4;
301  }
302  break;
303  case AV_PIX_FMT_RGB24:
304  if (s->codec_id == AV_CODEC_ID_CINEPAK) {
305  w_align = 4;
306  h_align = 4;
307  }
308  break;
309  default:
310  break;
311  }
312 
313  if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
314  w_align = FFMAX(w_align, 8);
315  }
316 
317  *width = FFALIGN(*width, w_align);
318  *height = FFALIGN(*height, h_align);
319  if (s->codec_id == AV_CODEC_ID_H264 || s->lowres ||
322  ) {
323  // some of the optimized chroma MC reads one line too much
324  // which is also done in mpeg decoders with lowres > 0
325  *height += 2;
326 
327  // H.264 uses edge emulation for out of frame motion vectors, for this
328  // it requires a temporary area large enough to hold a 21x21 block,
329  // increasing witdth ensure that the temporary area is large enough,
330  // the next rounded up width is 32
331  *width = FFMAX(*width, 32);
332  }
333 
334  for (i = 0; i < 4; i++)
335  linesize_align[i] = STRIDE_ALIGN;
336 }
337 
339 {
341  int chroma_shift = desc->log2_chroma_w;
342  int linesize_align[AV_NUM_DATA_POINTERS];
343  int align;
344 
345  avcodec_align_dimensions2(s, width, height, linesize_align);
346  align = FFMAX(linesize_align[0], linesize_align[3]);
347  linesize_align[1] <<= chroma_shift;
348  linesize_align[2] <<= chroma_shift;
349  align = FFMAX3(align, linesize_align[1], linesize_align[2]);
350  *width = FFALIGN(*width, align);
351 }
352 
353 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
354 {
355  if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
356  return AVERROR(EINVAL);
357  pos--;
358 
359  *xpos = (pos&1) * 128;
360  *ypos = ((pos>>1)^(pos<4)) * 128;
361 
362  return 0;
363 }
364 
366 {
367  int pos, xout, yout;
368 
369  for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
370  if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
371  return pos;
372  }
374 }
375 
377  enum AVSampleFormat sample_fmt, const uint8_t *buf,
378  int buf_size, int align)
379 {
380  int ch, planar, needed_size, ret = 0;
381 
382  needed_size = av_samples_get_buffer_size(NULL, nb_channels,
383  frame->nb_samples, sample_fmt,
384  align);
385  if (buf_size < needed_size)
386  return AVERROR(EINVAL);
387 
388  planar = av_sample_fmt_is_planar(sample_fmt);
389  if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
390  if (!(frame->extended_data = av_mallocz_array(nb_channels,
391  sizeof(*frame->extended_data))))
392  return AVERROR(ENOMEM);
393  } else {
394  frame->extended_data = frame->data;
395  }
396 
397  if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
398  (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
399  sample_fmt, align)) < 0) {
400  if (frame->extended_data != frame->data)
401  av_freep(&frame->extended_data);
402  return ret;
403  }
404  if (frame->extended_data != frame->data) {
405  for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
406  frame->data[ch] = frame->extended_data[ch];
407  }
408 
409  return ret;
410 }
411 
412 void ff_color_frame(AVFrame *frame, const int c[4])
413 {
415  int p, y;
416 
418 
419  for (p = 0; p<desc->nb_components; p++) {
420  uint8_t *dst = frame->data[p];
421  int is_chroma = p == 1 || p == 2;
422  int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
423  int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
424  if (desc->comp[0].depth >= 9) {
425  ((uint16_t*)dst)[0] = c[p];
426  av_memcpy_backptr(dst + 2, 2, bytes - 2);
427  dst += frame->linesize[p];
428  for (y = 1; y < height; y++) {
429  memcpy(dst, frame->data[p], 2*bytes);
430  dst += frame->linesize[p];
431  }
432  } else {
433  for (y = 0; y < height; y++) {
434  memset(dst, c[p], bytes);
435  dst += frame->linesize[p];
436  }
437  }
438  }
439 }
440 
441 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
442 {
443  int i;
444 
445  for (i = 0; i < count; i++) {
446  int r = func(c, (char *)arg + i * size);
447  if (ret)
448  ret[i] = r;
449  }
450  emms_c();
451  return 0;
452 }
453 
454 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
455 {
456  int i;
457 
458  for (i = 0; i < count; i++) {
459  int r = func(c, arg, i, 0);
460  if (ret)
461  ret[i] = r;
462  }
463  emms_c();
464  return 0;
465 }
466 
468  unsigned int fourcc)
469 {
470  while (tags->pix_fmt >= 0) {
471  if (tags->fourcc == fourcc)
472  return tags->pix_fmt;
473  tags++;
474  }
475  return AV_PIX_FMT_NONE;
476 }
477 
478 #if FF_API_CODEC_GET_SET
479 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
480 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
482 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
483 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
484 
486 {
487  return codec->properties;
488 }
489 
491 {
492  return codec->max_lowres;
493 }
494 #endif
495 
498 }
499 
501 {
502  int64_t bit_rate;
503  int bits_per_sample;
504 
505  switch (ctx->codec_type) {
506  case AVMEDIA_TYPE_VIDEO:
507  case AVMEDIA_TYPE_DATA:
510  bit_rate = ctx->bit_rate;
511  break;
512  case AVMEDIA_TYPE_AUDIO:
513  bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
514  bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
515  break;
516  default:
517  bit_rate = 0;
518  break;
519  }
520  return bit_rate;
521 }
522 
523 
524 static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
525 {
526  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
528 }
529 
530 static void ff_unlock_avcodec(const AVCodec *codec)
531 {
532  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
534 }
535 
536 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
537 {
538  int ret = 0;
539 
540  ff_unlock_avcodec(codec);
541 
542  ret = avcodec_open2(avctx, codec, options);
543 
544  ff_lock_avcodec(avctx, codec);
545  return ret;
546 }
547 
548 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
549 {
550  int ret = 0;
551  int codec_init_ok = 0;
552  AVDictionary *tmp = NULL;
553  const AVPixFmtDescriptor *pixdesc;
554  AVCodecInternal *avci;
555 
556  if (avcodec_is_open(avctx))
557  return 0;
558 
559  if ((!codec && !avctx->codec)) {
560  av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
561  return AVERROR(EINVAL);
562  }
563  if ((codec && avctx->codec && codec != avctx->codec)) {
564  av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
565  "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
566  return AVERROR(EINVAL);
567  }
568  if (!codec)
569  codec = avctx->codec;
570 
571  if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
572  return AVERROR(EINVAL);
573 
574  if (options)
575  av_dict_copy(&tmp, *options, 0);
576 
577  ff_lock_avcodec(avctx, codec);
578 
579  avci = av_mallocz(sizeof(*avci));
580  if (!avci) {
581  ret = AVERROR(ENOMEM);
582  goto end;
583  }
584  avctx->internal = avci;
585 
586  avci->pool = av_mallocz(sizeof(*avci->pool));
587  if (!avci->pool) {
588  ret = AVERROR(ENOMEM);
589  goto free_and_end;
590  }
591 
592  avci->to_free = av_frame_alloc();
593  if (!avci->to_free) {
594  ret = AVERROR(ENOMEM);
595  goto free_and_end;
596  }
597 
599  if (!avci->compat_decode_frame) {
600  ret = AVERROR(ENOMEM);
601  goto free_and_end;
602  }
603 
604  avci->buffer_frame = av_frame_alloc();
605  if (!avci->buffer_frame) {
606  ret = AVERROR(ENOMEM);
607  goto free_and_end;
608  }
609 
610  avci->buffer_pkt = av_packet_alloc();
611  if (!avci->buffer_pkt) {
612  ret = AVERROR(ENOMEM);
613  goto free_and_end;
614  }
615 
616  avci->ds.in_pkt = av_packet_alloc();
617  if (!avci->ds.in_pkt) {
618  ret = AVERROR(ENOMEM);
619  goto free_and_end;
620  }
621 
623  if (!avci->last_pkt_props) {
624  ret = AVERROR(ENOMEM);
625  goto free_and_end;
626  }
627 
628  avci->skip_samples_multiplier = 1;
629 
630  if (codec->priv_data_size > 0) {
631  if (!avctx->priv_data) {
632  avctx->priv_data = av_mallocz(codec->priv_data_size);
633  if (!avctx->priv_data) {
634  ret = AVERROR(ENOMEM);
635  goto end;
636  }
637  if (codec->priv_class) {
638  *(const AVClass **)avctx->priv_data = codec->priv_class;
640  }
641  }
642  if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
643  goto free_and_end;
644  } else {
645  avctx->priv_data = NULL;
646  }
647  if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
648  goto free_and_end;
649 
650  if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
651  av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
652  ret = AVERROR(EINVAL);
653  goto free_and_end;
654  }
655 
656  // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
657  if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
658  (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
659  if (avctx->coded_width && avctx->coded_height)
660  ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
661  else if (avctx->width && avctx->height)
662  ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
663  if (ret < 0)
664  goto free_and_end;
665  }
666 
667  if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
668  && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
669  || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
670  av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
671  ff_set_dimensions(avctx, 0, 0);
672  }
673 
674  if (avctx->width > 0 && avctx->height > 0) {
675  if (av_image_check_sar(avctx->width, avctx->height,
676  avctx->sample_aspect_ratio) < 0) {
677  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
678  avctx->sample_aspect_ratio.num,
679  avctx->sample_aspect_ratio.den);
680  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
681  }
682  }
683 
684  /* if the decoder init function was already called previously,
685  * free the already allocated subtitle_header before overwriting it */
686  if (av_codec_is_decoder(codec))
687  av_freep(&avctx->subtitle_header);
688 
689  if (avctx->channels > FF_SANE_NB_CHANNELS || avctx->channels < 0) {
690  av_log(avctx, AV_LOG_ERROR, "Too many or invalid channels: %d\n", avctx->channels);
691  ret = AVERROR(EINVAL);
692  goto free_and_end;
693  }
694  if (avctx->sample_rate < 0) {
695  av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate);
696  ret = AVERROR(EINVAL);
697  goto free_and_end;
698  }
699  if (avctx->block_align < 0) {
700  av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align);
701  ret = AVERROR(EINVAL);
702  goto free_and_end;
703  }
704 
705  avctx->codec = codec;
706  if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
707  avctx->codec_id == AV_CODEC_ID_NONE) {
708  avctx->codec_type = codec->type;
709  avctx->codec_id = codec->id;
710  }
711  if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
712  && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
713  av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
714  ret = AVERROR(EINVAL);
715  goto free_and_end;
716  }
717  avctx->frame_number = 0;
719 
720  if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
722  const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
723  AVCodec *codec2;
724  av_log(avctx, AV_LOG_ERROR,
725  "The %s '%s' is experimental but experimental codecs are not enabled, "
726  "add '-strict %d' if you want to use it.\n",
727  codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
728  codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
729  if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
730  av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
731  codec_string, codec2->name);
732  ret = AVERROR_EXPERIMENTAL;
733  goto free_and_end;
734  }
735 
736  if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
737  (!avctx->time_base.num || !avctx->time_base.den)) {
738  avctx->time_base.num = 1;
739  avctx->time_base.den = avctx->sample_rate;
740  }
741 
742  if (!HAVE_THREADS)
743  av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
744 
745  if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
746  ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
747  ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
748  ff_lock_avcodec(avctx, codec);
749  if (ret < 0)
750  goto free_and_end;
751  }
752 
753  if (av_codec_is_decoder(avctx->codec)) {
754  ret = ff_decode_bsfs_init(avctx);
755  if (ret < 0)
756  goto free_and_end;
757  }
758 
759  if (HAVE_THREADS
760  && !(avci->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
761  ret = ff_thread_init(avctx);
762  if (ret < 0) {
763  goto free_and_end;
764  }
765  }
766  if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
767  avctx->thread_count = 1;
768 
769  if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
770  av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
771  avctx->codec->max_lowres);
772  avctx->lowres = avctx->codec->max_lowres;
773  }
774 
775  if (av_codec_is_encoder(avctx->codec)) {
776  int i;
777 #if FF_API_CODED_FRAME
779  avctx->coded_frame = av_frame_alloc();
780  if (!avctx->coded_frame) {
781  ret = AVERROR(ENOMEM);
782  goto free_and_end;
783  }
785 #endif
786 
787  if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
788  av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
789  ret = AVERROR(EINVAL);
790  goto free_and_end;
791  }
792 
793  if (avctx->codec->sample_fmts) {
794  for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
795  if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
796  break;
797  if (avctx->channels == 1 &&
800  avctx->sample_fmt = avctx->codec->sample_fmts[i];
801  break;
802  }
803  }
804  if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
805  char buf[128];
806  snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
807  av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
808  (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
809  ret = AVERROR(EINVAL);
810  goto free_and_end;
811  }
812  }
813  if (avctx->codec->pix_fmts) {
814  for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
815  if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
816  break;
817  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
818  && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
820  char buf[128];
821  snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
822  av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
823  (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
824  ret = AVERROR(EINVAL);
825  goto free_and_end;
826  }
827  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
828  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
829  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
830  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
831  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
832  avctx->color_range = AVCOL_RANGE_JPEG;
833  }
834  if (avctx->codec->supported_samplerates) {
835  for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
836  if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
837  break;
838  if (avctx->codec->supported_samplerates[i] == 0) {
839  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
840  avctx->sample_rate);
841  ret = AVERROR(EINVAL);
842  goto free_and_end;
843  }
844  }
845  if (avctx->sample_rate < 0) {
846  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
847  avctx->sample_rate);
848  ret = AVERROR(EINVAL);
849  goto free_and_end;
850  }
851  if (avctx->codec->channel_layouts) {
852  if (!avctx->channel_layout) {
853  av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
854  } else {
855  for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
856  if (avctx->channel_layout == avctx->codec->channel_layouts[i])
857  break;
858  if (avctx->codec->channel_layouts[i] == 0) {
859  char buf[512];
860  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
861  av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
862  ret = AVERROR(EINVAL);
863  goto free_and_end;
864  }
865  }
866  }
867  if (avctx->channel_layout && avctx->channels) {
869  if (channels != avctx->channels) {
870  char buf[512];
871  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
872  av_log(avctx, AV_LOG_ERROR,
873  "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
874  buf, channels, avctx->channels);
875  ret = AVERROR(EINVAL);
876  goto free_and_end;
877  }
878  } else if (avctx->channel_layout) {
880  }
881  if (avctx->channels < 0) {
882  av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
883  avctx->channels);
884  ret = AVERROR(EINVAL);
885  goto free_and_end;
886  }
887  if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
888  pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
889  if ( avctx->bits_per_raw_sample < 0
890  || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
891  av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
892  avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
893  avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
894  }
895  if (avctx->width <= 0 || avctx->height <= 0) {
896  av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
897  ret = AVERROR(EINVAL);
898  goto free_and_end;
899  }
900  }
901  if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
902  && avctx->bit_rate>0 && avctx->bit_rate<1000) {
903  av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
904  }
905 
906  if (!avctx->rc_initial_buffer_occupancy)
907  avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
908 
909  if (avctx->ticks_per_frame && avctx->time_base.num &&
910  avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
911  av_log(avctx, AV_LOG_ERROR,
912  "ticks_per_frame %d too large for the timebase %d/%d.",
913  avctx->ticks_per_frame,
914  avctx->time_base.num,
915  avctx->time_base.den);
916  goto free_and_end;
917  }
918 
919  if (avctx->hw_frames_ctx) {
920  AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
921  if (frames_ctx->format != avctx->pix_fmt) {
922  av_log(avctx, AV_LOG_ERROR,
923  "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
924  ret = AVERROR(EINVAL);
925  goto free_and_end;
926  }
927  if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
928  avctx->sw_pix_fmt != frames_ctx->sw_format) {
929  av_log(avctx, AV_LOG_ERROR,
930  "Mismatching AVCodecContext.sw_pix_fmt (%s) "
931  "and AVHWFramesContext.sw_format (%s)\n",
933  av_get_pix_fmt_name(frames_ctx->sw_format));
934  ret = AVERROR(EINVAL);
935  goto free_and_end;
936  }
937  avctx->sw_pix_fmt = frames_ctx->sw_format;
938  }
939  }
940 
943  avctx->pts_correction_last_pts =
944  avctx->pts_correction_last_dts = INT64_MIN;
945 
946  if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
948  av_log(avctx, AV_LOG_WARNING,
949  "gray decoding requested but not enabled at configuration time\n");
950 
951  if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
952  || avci->frame_thread_encoder)) {
953  ret = avctx->codec->init(avctx);
954  if (ret < 0) {
955  goto free_and_end;
956  }
957  codec_init_ok = 1;
958  }
959 
960  ret=0;
961 
962  if (av_codec_is_decoder(avctx->codec)) {
963  if (!avctx->bit_rate)
964  avctx->bit_rate = get_bit_rate(avctx);
965  /* validate channel layout from the decoder */
966  if (avctx->channel_layout) {
968  if (!avctx->channels)
969  avctx->channels = channels;
970  else if (channels != avctx->channels) {
971  char buf[512];
972  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
973  av_log(avctx, AV_LOG_WARNING,
974  "Channel layout '%s' with %d channels does not match specified number of channels %d: "
975  "ignoring specified channel layout\n",
976  buf, channels, avctx->channels);
977  avctx->channel_layout = 0;
978  }
979  }
980  if (avctx->channels && avctx->channels < 0 ||
981  avctx->channels > FF_SANE_NB_CHANNELS) {
982  ret = AVERROR(EINVAL);
983  goto free_and_end;
984  }
985  if (avctx->bits_per_coded_sample < 0) {
986  ret = AVERROR(EINVAL);
987  goto free_and_end;
988  }
989  if (avctx->sub_charenc) {
990  if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
991  av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
992  "supported with subtitles codecs\n");
993  ret = AVERROR(EINVAL);
994  goto free_and_end;
995  } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
996  av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
997  "subtitles character encoding will be ignored\n",
998  avctx->codec_descriptor->name);
1000  } else {
1001  /* input character encoding is set for a text based subtitle
1002  * codec at this point */
1005 
1007 #if CONFIG_ICONV
1008  iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1009  if (cd == (iconv_t)-1) {
1010  ret = AVERROR(errno);
1011  av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1012  "with input character encoding \"%s\"\n", avctx->sub_charenc);
1013  goto free_and_end;
1014  }
1015  iconv_close(cd);
1016 #else
1017  av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1018  "conversion needs a libavcodec built with iconv support "
1019  "for this codec\n");
1020  ret = AVERROR(ENOSYS);
1021  goto free_and_end;
1022 #endif
1023  }
1024  }
1025  }
1026 
1027 #if FF_API_AVCTX_TIMEBASE
1028  if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1029  avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1030 #endif
1031  }
1032  if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1033  av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1034  }
1035 
1036 end:
1037  ff_unlock_avcodec(codec);
1038  if (options) {
1039  av_dict_free(options);
1040  *options = tmp;
1041  }
1042 
1043  return ret;
1044 free_and_end:
1045  if (avctx->codec && avctx->codec->close &&
1046  (codec_init_ok ||
1048  avctx->codec->close(avctx);
1049 
1050  if (HAVE_THREADS && avci->thread_ctx)
1051  ff_thread_free(avctx);
1052 
1053  if (codec->priv_class && codec->priv_data_size)
1054  av_opt_free(avctx->priv_data);
1055  av_opt_free(avctx);
1056 
1057 #if FF_API_CODED_FRAME
1059  av_frame_free(&avctx->coded_frame);
1061 #endif
1062 
1063  av_dict_free(&tmp);
1064  av_freep(&avctx->priv_data);
1065  av_freep(&avctx->subtitle_header);
1066  if (avci) {
1067  av_frame_free(&avci->to_free);
1069  av_frame_free(&avci->buffer_frame);
1070  av_packet_free(&avci->buffer_pkt);
1072 
1073  av_packet_free(&avci->ds.in_pkt);
1074  ff_decode_bsfs_uninit(avctx);
1075 
1076  av_freep(&avci->pool);
1077  }
1078  av_freep(&avci);
1079  avctx->internal = NULL;
1080  avctx->codec = NULL;
1081  goto end;
1082 }
1083 
1085 {
1086  int i;
1087 
1088  for (i = 0; i < sub->num_rects; i++) {
1089  av_freep(&sub->rects[i]->data[0]);
1090  av_freep(&sub->rects[i]->data[1]);
1091  av_freep(&sub->rects[i]->data[2]);
1092  av_freep(&sub->rects[i]->data[3]);
1093  av_freep(&sub->rects[i]->text);
1094  av_freep(&sub->rects[i]->ass);
1095  av_freep(&sub->rects[i]);
1096  }
1097 
1098  av_freep(&sub->rects);
1099 
1100  memset(sub, 0, sizeof(*sub));
1101 }
1102 
1104 {
1105  int i;
1106 
1107  if (!avctx)
1108  return 0;
1109 
1110  if (avcodec_is_open(avctx)) {
1111  FramePool *pool = avctx->internal->pool;
1112  if (CONFIG_FRAME_THREAD_ENCODER &&
1113  avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1115  }
1116  if (HAVE_THREADS && avctx->internal->thread_ctx)
1117  ff_thread_free(avctx);
1118  if (avctx->codec && avctx->codec->close)
1119  avctx->codec->close(avctx);
1120  avctx->internal->byte_buffer_size = 0;
1121  av_freep(&avctx->internal->byte_buffer);
1122  av_frame_free(&avctx->internal->to_free);
1127 
1128  av_packet_free(&avctx->internal->ds.in_pkt);
1129 
1130  for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
1131  av_buffer_pool_uninit(&pool->pools[i]);
1132  av_freep(&avctx->internal->pool);
1133 
1134  if (avctx->hwaccel && avctx->hwaccel->uninit)
1135  avctx->hwaccel->uninit(avctx);
1137 
1138  ff_decode_bsfs_uninit(avctx);
1139 
1140  av_freep(&avctx->internal);
1141  }
1142 
1143  for (i = 0; i < avctx->nb_coded_side_data; i++)
1144  av_freep(&avctx->coded_side_data[i].data);
1145  av_freep(&avctx->coded_side_data);
1146  avctx->nb_coded_side_data = 0;
1147 
1148  av_buffer_unref(&avctx->hw_frames_ctx);
1149  av_buffer_unref(&avctx->hw_device_ctx);
1150 
1151  if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1152  av_opt_free(avctx->priv_data);
1153  av_opt_free(avctx);
1154  av_freep(&avctx->priv_data);
1155  if (av_codec_is_encoder(avctx->codec)) {
1156  av_freep(&avctx->extradata);
1157 #if FF_API_CODED_FRAME
1159  av_frame_free(&avctx->coded_frame);
1161 #endif
1162  }
1163  avctx->codec = NULL;
1164  avctx->active_thread_type = 0;
1165 
1166  return 0;
1167 }
1168 
1169 const char *avcodec_get_name(enum AVCodecID id)
1170 {
1171  const AVCodecDescriptor *cd;
1172  AVCodec *codec;
1173 
1174  if (id == AV_CODEC_ID_NONE)
1175  return "none";
1176  cd = avcodec_descriptor_get(id);
1177  if (cd)
1178  return cd->name;
1179  av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1180  codec = avcodec_find_decoder(id);
1181  if (codec)
1182  return codec->name;
1183  codec = avcodec_find_encoder(id);
1184  if (codec)
1185  return codec->name;
1186  return "unknown_codec";
1187 }
1188 
1189 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1190 {
1191  int i, len, ret = 0;
1192 
1193 #define TAG_PRINT(x) \
1194  (((x) >= '0' && (x) <= '9') || \
1195  ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1196  ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
1197 
1198  for (i = 0; i < 4; i++) {
1199  len = snprintf(buf, buf_size,
1200  TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1201  buf += len;
1202  buf_size = buf_size > len ? buf_size - len : 0;
1203  ret += len;
1204  codec_tag >>= 8;
1205  }
1206  return ret;
1207 }
1208 
1209 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1210 {
1211  const char *codec_type;
1212  const char *codec_name;
1213  const char *profile = NULL;
1214  int64_t bitrate;
1215  int new_line = 0;
1216  AVRational display_aspect_ratio;
1217  const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1218 
1219  if (!buf || buf_size <= 0)
1220  return;
1221  codec_type = av_get_media_type_string(enc->codec_type);
1222  codec_name = avcodec_get_name(enc->codec_id);
1223  profile = avcodec_profile_name(enc->codec_id, enc->profile);
1224 
1225  snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1226  codec_name);
1227  buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1228 
1229  if (enc->codec && strcmp(enc->codec->name, codec_name))
1230  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1231 
1232  if (profile)
1233  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1234  if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1236  && enc->refs)
1237  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1238  ", %d reference frame%s",
1239  enc->refs, enc->refs > 1 ? "s" : "");
1240 
1241  if (enc->codec_tag)
1242  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1243  av_fourcc2str(enc->codec_tag), enc->codec_tag);
1244 
1245  switch (enc->codec_type) {
1246  case AVMEDIA_TYPE_VIDEO:
1247  {
1248  char detail[256] = "(";
1249 
1250  av_strlcat(buf, separator, buf_size);
1251 
1252  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1253  "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1255  if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1257  av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1259  av_strlcatf(detail, sizeof(detail), "%s, ",
1261 
1262  if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1264  enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1265  if (enc->colorspace != (int)enc->color_primaries ||
1266  enc->colorspace != (int)enc->color_trc) {
1267  new_line = 1;
1268  av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1272  } else
1273  av_strlcatf(detail, sizeof(detail), "%s, ",
1275  }
1276 
1277  if (enc->field_order != AV_FIELD_UNKNOWN) {
1278  const char *field_order = "progressive";
1279  if (enc->field_order == AV_FIELD_TT)
1280  field_order = "top first";
1281  else if (enc->field_order == AV_FIELD_BB)
1282  field_order = "bottom first";
1283  else if (enc->field_order == AV_FIELD_TB)
1284  field_order = "top coded first (swapped)";
1285  else if (enc->field_order == AV_FIELD_BT)
1286  field_order = "bottom coded first (swapped)";
1287 
1288  av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1289  }
1290 
1291  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1293  av_strlcatf(detail, sizeof(detail), "%s, ",
1295 
1296  if (strlen(detail) > 1) {
1297  detail[strlen(detail) - 2] = 0;
1298  av_strlcatf(buf, buf_size, "%s)", detail);
1299  }
1300  }
1301 
1302  if (enc->width) {
1303  av_strlcat(buf, new_line ? separator : ", ", buf_size);
1304 
1305  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1306  "%dx%d",
1307  enc->width, enc->height);
1308 
1309  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1310  (enc->width != enc->coded_width ||
1311  enc->height != enc->coded_height))
1312  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1313  " (%dx%d)", enc->coded_width, enc->coded_height);
1314 
1315  if (enc->sample_aspect_ratio.num) {
1316  av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1317  enc->width * (int64_t)enc->sample_aspect_ratio.num,
1318  enc->height * (int64_t)enc->sample_aspect_ratio.den,
1319  1024 * 1024);
1320  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1321  " [SAR %d:%d DAR %d:%d]",
1323  display_aspect_ratio.num, display_aspect_ratio.den);
1324  }
1325  if (av_log_get_level() >= AV_LOG_DEBUG) {
1326  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1327  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1328  ", %d/%d",
1329  enc->time_base.num / g, enc->time_base.den / g);
1330  }
1331  }
1332  if (encode) {
1333  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1334  ", q=%d-%d", enc->qmin, enc->qmax);
1335  } else {
1337  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1338  ", Closed Captions");
1340  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1341  ", lossless");
1342  }
1343  break;
1344  case AVMEDIA_TYPE_AUDIO:
1345  av_strlcat(buf, separator, buf_size);
1346 
1347  if (enc->sample_rate) {
1348  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1349  "%d Hz, ", enc->sample_rate);
1350  }
1351  av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1352  if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1353  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1354  ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1355  }
1356  if ( enc->bits_per_raw_sample > 0
1358  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1359  " (%d bit)", enc->bits_per_raw_sample);
1360  if (av_log_get_level() >= AV_LOG_VERBOSE) {
1361  if (enc->initial_padding)
1362  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1363  ", delay %d", enc->initial_padding);
1364  if (enc->trailing_padding)
1365  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1366  ", padding %d", enc->trailing_padding);
1367  }
1368  break;
1369  case AVMEDIA_TYPE_DATA:
1370  if (av_log_get_level() >= AV_LOG_DEBUG) {
1371  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1372  if (g)
1373  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1374  ", %d/%d",
1375  enc->time_base.num / g, enc->time_base.den / g);
1376  }
1377  break;
1378  case AVMEDIA_TYPE_SUBTITLE:
1379  if (enc->width)
1380  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1381  ", %dx%d", enc->width, enc->height);
1382  break;
1383  default:
1384  return;
1385  }
1386  if (encode) {
1387  if (enc->flags & AV_CODEC_FLAG_PASS1)
1388  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1389  ", pass 1");
1390  if (enc->flags & AV_CODEC_FLAG_PASS2)
1391  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1392  ", pass 2");
1393  }
1394  bitrate = get_bit_rate(enc);
1395  if (bitrate != 0) {
1396  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1397  ", %"PRId64" kb/s", bitrate / 1000);
1398  } else if (enc->rc_max_rate > 0) {
1399  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1400  ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1401  }
1402 }
1403 
1404 const char *av_get_profile_name(const AVCodec *codec, int profile)
1405 {
1406  const AVProfile *p;
1407  if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1408  return NULL;
1409 
1410  for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1411  if (p->profile == profile)
1412  return p->name;
1413 
1414  return NULL;
1415 }
1416 
1418 {
1419  const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1420  const AVProfile *p;
1421 
1422  if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1423  return NULL;
1424 
1425  for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1426  if (p->profile == profile)
1427  return p->name;
1428 
1429  return NULL;
1430 }
1431 
1432 unsigned avcodec_version(void)
1433 {
1436  av_assert0(AV_CODEC_ID_SRT==94216);
1438 
1439  return LIBAVCODEC_VERSION_INT;
1440 }
1441 
1442 const char *avcodec_configuration(void)
1443 {
1444  return FFMPEG_CONFIGURATION;
1445 }
1446 
1447 const char *avcodec_license(void)
1448 {
1449 #define LICENSE_PREFIX "libavcodec license: "
1450  return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
1451 }
1452 
1454 {
1455  switch (codec_id) {
1456  case AV_CODEC_ID_8SVX_EXP:
1457  case AV_CODEC_ID_8SVX_FIB:
1458  case AV_CODEC_ID_ADPCM_CT:
1466  return 4;
1467  case AV_CODEC_ID_DSD_LSBF:
1468  case AV_CODEC_ID_DSD_MSBF:
1471  case AV_CODEC_ID_PCM_ALAW:
1472  case AV_CODEC_ID_PCM_MULAW:
1473  case AV_CODEC_ID_PCM_VIDC:
1474  case AV_CODEC_ID_PCM_S8:
1476  case AV_CODEC_ID_PCM_U8:
1477  case AV_CODEC_ID_PCM_ZORK:
1478  case AV_CODEC_ID_SDX2_DPCM:
1479  return 8;
1480  case AV_CODEC_ID_PCM_S16BE:
1482  case AV_CODEC_ID_PCM_S16LE:
1484  case AV_CODEC_ID_PCM_U16BE:
1485  case AV_CODEC_ID_PCM_U16LE:
1486  return 16;
1488  case AV_CODEC_ID_PCM_S24BE:
1489  case AV_CODEC_ID_PCM_S24LE:
1491  case AV_CODEC_ID_PCM_U24BE:
1492  case AV_CODEC_ID_PCM_U24LE:
1493  return 24;
1494  case AV_CODEC_ID_PCM_S32BE:
1495  case AV_CODEC_ID_PCM_S32LE:
1497  case AV_CODEC_ID_PCM_U32BE:
1498  case AV_CODEC_ID_PCM_U32LE:
1499  case AV_CODEC_ID_PCM_F32BE:
1500  case AV_CODEC_ID_PCM_F32LE:
1501  case AV_CODEC_ID_PCM_F24LE:
1502  case AV_CODEC_ID_PCM_F16LE:
1503  return 32;
1504  case AV_CODEC_ID_PCM_F64BE:
1505  case AV_CODEC_ID_PCM_F64LE:
1506  case AV_CODEC_ID_PCM_S64BE:
1507  case AV_CODEC_ID_PCM_S64LE:
1508  return 64;
1509  default:
1510  return 0;
1511  }
1512 }
1513 
1515 {
1516  static const enum AVCodecID map[][2] = {
1522  [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1523  [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1524  [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1526  [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1527  [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1528  };
1529  if (fmt < 0 || fmt >= FF_ARRAY_ELEMS(map))
1530  return AV_CODEC_ID_NONE;
1531  if (be < 0 || be > 1)
1532  be = AV_NE(1, 0);
1533  return map[fmt][be];
1534 }
1535 
1537 {
1538  switch (codec_id) {
1540  return 2;
1542  return 3;
1546  case AV_CODEC_ID_ADPCM_SWF:
1547  case AV_CODEC_ID_ADPCM_MS:
1548  return 4;
1549  default:
1550  return av_get_exact_bits_per_sample(codec_id);
1551  }
1552 }
1553 
1554 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1555  uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1556  uint8_t * extradata, int frame_size, int frame_bytes)
1557 {
1559  int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1560 
1561  /* codecs with an exact constant bits per sample */
1562  if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1563  return (frame_bytes * 8LL) / (bps * ch);
1564  bps = bits_per_coded_sample;
1565 
1566  /* codecs with a fixed packet duration */
1567  switch (id) {
1568  case AV_CODEC_ID_ADPCM_ADX: return 32;
1569  case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1570  case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1571  case AV_CODEC_ID_AMR_NB:
1572  case AV_CODEC_ID_EVRC:
1573  case AV_CODEC_ID_GSM:
1574  case AV_CODEC_ID_QCELP:
1575  case AV_CODEC_ID_RA_288: return 160;
1576  case AV_CODEC_ID_AMR_WB:
1577  case AV_CODEC_ID_GSM_MS: return 320;
1578  case AV_CODEC_ID_MP1: return 384;
1579  case AV_CODEC_ID_ATRAC1: return 512;
1580  case AV_CODEC_ID_ATRAC9:
1581  case AV_CODEC_ID_ATRAC3: return 1024 * framecount;
1582  case AV_CODEC_ID_ATRAC3P: return 2048;
1583  case AV_CODEC_ID_MP2:
1584  case AV_CODEC_ID_MUSEPACK7: return 1152;
1585  case AV_CODEC_ID_AC3: return 1536;
1586  }
1587 
1588  if (sr > 0) {
1589  /* calc from sample rate */
1590  if (id == AV_CODEC_ID_TTA)
1591  return 256 * sr / 245;
1592  else if (id == AV_CODEC_ID_DST)
1593  return 588 * sr / 44100;
1594 
1595  if (ch > 0) {
1596  /* calc from sample rate and channels */
1597  if (id == AV_CODEC_ID_BINKAUDIO_DCT)
1598  return (480 << (sr / 22050)) / ch;
1599  }
1600 
1601  if (id == AV_CODEC_ID_MP3)
1602  return sr <= 24000 ? 576 : 1152;
1603  }
1604 
1605  if (ba > 0) {
1606  /* calc from block_align */
1607  if (id == AV_CODEC_ID_SIPR) {
1608  switch (ba) {
1609  case 20: return 160;
1610  case 19: return 144;
1611  case 29: return 288;
1612  case 37: return 480;
1613  }
1614  } else if (id == AV_CODEC_ID_ILBC) {
1615  switch (ba) {
1616  case 38: return 160;
1617  case 50: return 240;
1618  }
1619  }
1620  }
1621 
1622  if (frame_bytes > 0) {
1623  /* calc from frame_bytes only */
1624  if (id == AV_CODEC_ID_TRUESPEECH)
1625  return 240 * (frame_bytes / 32);
1626  if (id == AV_CODEC_ID_NELLYMOSER)
1627  return 256 * (frame_bytes / 64);
1628  if (id == AV_CODEC_ID_RA_144)
1629  return 160 * (frame_bytes / 20);
1630 
1631  if (bps > 0) {
1632  /* calc from frame_bytes and bits_per_coded_sample */
1634  return frame_bytes * 8 / bps;
1635  }
1636 
1637  if (ch > 0 && ch < INT_MAX/16) {
1638  /* calc from frame_bytes and channels */
1639  switch (id) {
1640  case AV_CODEC_ID_ADPCM_AFC:
1641  return frame_bytes / (9 * ch) * 16;
1642  case AV_CODEC_ID_ADPCM_PSX:
1643  case AV_CODEC_ID_ADPCM_DTK:
1644  return frame_bytes / (16 * ch) * 28;
1645  case AV_CODEC_ID_ADPCM_4XM:
1648  return (frame_bytes - 4 * ch) * 2 / ch;
1650  return (frame_bytes - 4) * 2 / ch;
1652  return (frame_bytes - 8) * 2 / ch;
1653  case AV_CODEC_ID_ADPCM_THP:
1655  if (extradata)
1656  return frame_bytes * 14 / (8 * ch);
1657  break;
1658  case AV_CODEC_ID_ADPCM_XA:
1659  return (frame_bytes / 128) * 224 / ch;
1661  return (frame_bytes - 6 - ch) / ch;
1662  case AV_CODEC_ID_ROQ_DPCM:
1663  return (frame_bytes - 8) / ch;
1664  case AV_CODEC_ID_XAN_DPCM:
1665  return (frame_bytes - 2 * ch) / ch;
1666  case AV_CODEC_ID_MACE3:
1667  return 3 * frame_bytes / ch;
1668  case AV_CODEC_ID_MACE6:
1669  return 6 * frame_bytes / ch;
1670  case AV_CODEC_ID_PCM_LXF:
1671  return 2 * (frame_bytes / (5 * ch));
1672  case AV_CODEC_ID_IAC:
1673  case AV_CODEC_ID_IMC:
1674  return 4 * frame_bytes / ch;
1675  }
1676 
1677  if (tag) {
1678  /* calc from frame_bytes, channels, and codec_tag */
1679  if (id == AV_CODEC_ID_SOL_DPCM) {
1680  if (tag == 3)
1681  return frame_bytes / ch;
1682  else
1683  return frame_bytes * 2 / ch;
1684  }
1685  }
1686 
1687  if (ba > 0) {
1688  /* calc from frame_bytes, channels, and block_align */
1689  int blocks = frame_bytes / ba;
1690  switch (id) {
1692  if (bps < 2 || bps > 5)
1693  return 0;
1694  return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1696  return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1698  return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1700  return blocks * ((ba - 4 * ch) * 2 / ch);
1701  case AV_CODEC_ID_ADPCM_MS:
1702  return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1704  return blocks * (ba - 16) * 2 / ch;
1705  }
1706  }
1707 
1708  if (bps > 0) {
1709  /* calc from frame_bytes, channels, and bits_per_coded_sample */
1710  switch (id) {
1711  case AV_CODEC_ID_PCM_DVD:
1712  if(bps<4 || frame_bytes<3)
1713  return 0;
1714  return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1716  if(bps<4 || frame_bytes<4)
1717  return 0;
1718  return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1719  case AV_CODEC_ID_S302M:
1720  return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1721  }
1722  }
1723  }
1724  }
1725 
1726  /* Fall back on using frame_size */
1727  if (frame_size > 1 && frame_bytes)
1728  return frame_size;
1729 
1730  //For WMA we currently have no other means to calculate duration thus we
1731  //do it here by assuming CBR, which is true for all known cases.
1732  if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1733  if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1734  return (frame_bytes * 8LL * sr) / bitrate;
1735  }
1736 
1737  return 0;
1738 }
1739 
1740 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1741 {
1742  return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1743  avctx->channels, avctx->block_align,
1744  avctx->codec_tag, avctx->bits_per_coded_sample,
1745  avctx->bit_rate, avctx->extradata, avctx->frame_size,
1746  frame_bytes);
1747 }
1748 
1750 {
1751  return get_audio_frame_duration(par->codec_id, par->sample_rate,
1752  par->channels, par->block_align,
1753  par->codec_tag, par->bits_per_coded_sample,
1754  par->bit_rate, par->extradata, par->frame_size,
1755  frame_bytes);
1756 }
1757 
1758 #if !HAVE_THREADS
1760 {
1761  return -1;
1762 }
1763 
1764 #endif
1765 
1766 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1767 {
1768  unsigned int n = 0;
1769 
1770  while (v >= 0xff) {
1771  *s++ = 0xff;
1772  v -= 0xff;
1773  n++;
1774  }
1775  *s = v;
1776  n++;
1777  return n;
1778 }
1779 
1780 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1781 {
1782  int i;
1783  for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1784  return i;
1785 }
1786 
1788 {
1789  int i;
1790  if (!codec->hw_configs || index < 0)
1791  return NULL;
1792  for (i = 0; i <= index; i++)
1793  if (!codec->hw_configs[i])
1794  return NULL;
1795  return &codec->hw_configs[index]->public;
1796 }
1797 
1798 #if FF_API_USER_VISIBLE_AVHWACCEL
1800 {
1801  return NULL;
1802 }
1803 
1805 {
1806 }
1807 #endif
1808 
1809 #if FF_API_LOCKMGR
1810 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1811 {
1812  return 0;
1813 }
1814 #endif
1815 
1816 unsigned int avpriv_toupper4(unsigned int x)
1817 {
1818  return av_toupper(x & 0xFF) +
1819  (av_toupper((x >> 8) & 0xFF) << 8) +
1820  (av_toupper((x >> 16) & 0xFF) << 16) +
1821 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1822 }
1823 
1825 {
1826  int ret;
1827 
1828  dst->owner[0] = src->owner[0];
1829  dst->owner[1] = src->owner[1];
1830 
1831  ret = av_frame_ref(dst->f, src->f);
1832  if (ret < 0)
1833  return ret;
1834 
1835  av_assert0(!dst->progress);
1836 
1837  if (src->progress &&
1838  !(dst->progress = av_buffer_ref(src->progress))) {
1839  ff_thread_release_buffer(dst->owner[0], dst);
1840  return AVERROR(ENOMEM);
1841  }
1842 
1843  return 0;
1844 }
1845 
1846 #if !HAVE_THREADS
1847 
1849 {
1850  return ff_get_format(avctx, fmt);
1851 }
1852 
1854 {
1855  f->owner[0] = f->owner[1] = avctx;
1856  return ff_get_buffer(avctx, f->f, flags);
1857 }
1858 
1860 {
1861  if (f->f)
1862  av_frame_unref(f->f);
1863 }
1864 
1866 {
1867 }
1868 
1870 {
1871 }
1872 
1873 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1874 {
1875 }
1876 
1878 {
1879  return 1;
1880 }
1881 
1883 {
1884  return 0;
1885 }
1886 
1888 {
1889 }
1890 
1891 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1892 {
1893 }
1894 
1895 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
1896 {
1897 }
1898 
1899 #endif
1900 
1902 {
1903  return !!s->internal;
1904 }
1905 
1906 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
1907 {
1908  int ret;
1909  char *str;
1910 
1911  ret = av_bprint_finalize(buf, &str);
1912  if (ret < 0)
1913  return ret;
1914  if (!av_bprint_is_complete(buf)) {
1915  av_free(str);
1916  return AVERROR(ENOMEM);
1917  }
1918 
1919  avctx->extradata = str;
1920  /* Note: the string is NUL terminated (so extradata can be read as a
1921  * string), but the ending character is not accounted in the size (in
1922  * binary formats you are likely not supposed to mux that character). When
1923  * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
1924  * zeros. */
1925  avctx->extradata_size = buf->len;
1926  return 0;
1927 }
1928 
1929 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
1930  const uint8_t *end,
1931  uint32_t *av_restrict state)
1932 {
1933  int i;
1934 
1935  av_assert0(p <= end);
1936  if (p >= end)
1937  return end;
1938 
1939  for (i = 0; i < 3; i++) {
1940  uint32_t tmp = *state << 8;
1941  *state = tmp + *(p++);
1942  if (tmp == 0x100 || p == end)
1943  return p;
1944  }
1945 
1946  while (p < end) {
1947  if (p[-1] > 1 ) p += 3;
1948  else if (p[-2] ) p += 2;
1949  else if (p[-3]|(p[-1]-1)) p++;
1950  else {
1951  p++;
1952  break;
1953  }
1954  }
1955 
1956  p = FFMIN(p, end) - 4;
1957  *state = AV_RB32(p);
1958 
1959  return p + 4;
1960 }
1961 
1963 {
1964  AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
1965  if (!props)
1966  return NULL;
1967 
1968  if (size)
1969  *size = sizeof(*props);
1970 
1971  props->vbv_delay = UINT64_MAX;
1972 
1973  return props;
1974 }
1975 
1977 {
1979  AVCPBProperties *props;
1980  size_t size;
1981 
1982  props = av_cpb_properties_alloc(&size);
1983  if (!props)
1984  return NULL;
1985 
1986  tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
1987  if (!tmp) {
1988  av_freep(&props);
1989  return NULL;
1990  }
1991 
1992  avctx->coded_side_data = tmp;
1993  avctx->nb_coded_side_data++;
1994 
1996  avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
1997  avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
1998 
1999  return props;
2000 }
2001 
2003 {
2004  av_freep(&par->extradata);
2005 
2006  memset(par, 0, sizeof(*par));
2007 
2009  par->codec_id = AV_CODEC_ID_NONE;
2010  par->format = -1;
2017  par->sample_aspect_ratio = (AVRational){ 0, 1 };
2018  par->profile = FF_PROFILE_UNKNOWN;
2019  par->level = FF_LEVEL_UNKNOWN;
2020 }
2021 
2023 {
2024  AVCodecParameters *par = av_mallocz(sizeof(*par));
2025 
2026  if (!par)
2027  return NULL;
2029  return par;
2030 }
2031 
2033 {
2034  AVCodecParameters *par = *ppar;
2035 
2036  if (!par)
2037  return;
2039 
2040  av_freep(ppar);
2041 }
2042 
2044 {
2046  memcpy(dst, src, sizeof(*dst));
2047 
2048  dst->extradata = NULL;
2049  dst->extradata_size = 0;
2050  if (src->extradata) {
2052  if (!dst->extradata)
2053  return AVERROR(ENOMEM);
2054  memcpy(dst->extradata, src->extradata, src->extradata_size);
2055  dst->extradata_size = src->extradata_size;
2056  }
2057 
2058  return 0;
2059 }
2060 
2062  const AVCodecContext *codec)
2063 {
2065 
2066  par->codec_type = codec->codec_type;
2067  par->codec_id = codec->codec_id;
2068  par->codec_tag = codec->codec_tag;
2069 
2070  par->bit_rate = codec->bit_rate;
2073  par->profile = codec->profile;
2074  par->level = codec->level;
2075 
2076  switch (par->codec_type) {
2077  case AVMEDIA_TYPE_VIDEO:
2078  par->format = codec->pix_fmt;
2079  par->width = codec->width;
2080  par->height = codec->height;
2081  par->field_order = codec->field_order;
2082  par->color_range = codec->color_range;
2083  par->color_primaries = codec->color_primaries;
2084  par->color_trc = codec->color_trc;
2085  par->color_space = codec->colorspace;
2088  par->video_delay = codec->has_b_frames;
2089  break;
2090  case AVMEDIA_TYPE_AUDIO:
2091  par->format = codec->sample_fmt;
2092  par->channel_layout = codec->channel_layout;
2093  par->channels = codec->channels;
2094  par->sample_rate = codec->sample_rate;
2095  par->block_align = codec->block_align;
2096  par->frame_size = codec->frame_size;
2097  par->initial_padding = codec->initial_padding;
2098  par->trailing_padding = codec->trailing_padding;
2099  par->seek_preroll = codec->seek_preroll;
2100  break;
2101  case AVMEDIA_TYPE_SUBTITLE:
2102  par->width = codec->width;
2103  par->height = codec->height;
2104  break;
2105  }
2106 
2107  if (codec->extradata) {
2109  if (!par->extradata)
2110  return AVERROR(ENOMEM);
2111  memcpy(par->extradata, codec->extradata, codec->extradata_size);
2112  par->extradata_size = codec->extradata_size;
2113  }
2114 
2115  return 0;
2116 }
2117 
2119  const AVCodecParameters *par)
2120 {
2121  codec->codec_type = par->codec_type;
2122  codec->codec_id = par->codec_id;
2123  codec->codec_tag = par->codec_tag;
2124 
2125  codec->bit_rate = par->bit_rate;
2128  codec->profile = par->profile;
2129  codec->level = par->level;
2130 
2131  switch (par->codec_type) {
2132  case AVMEDIA_TYPE_VIDEO:
2133  codec->pix_fmt = par->format;
2134  codec->width = par->width;
2135  codec->height = par->height;
2136  codec->field_order = par->field_order;
2137  codec->color_range = par->color_range;
2138  codec->color_primaries = par->color_primaries;
2139  codec->color_trc = par->color_trc;
2140  codec->colorspace = par->color_space;
2143  codec->has_b_frames = par->video_delay;
2144  break;
2145  case AVMEDIA_TYPE_AUDIO:
2146  codec->sample_fmt = par->format;
2147  codec->channel_layout = par->channel_layout;
2148  codec->channels = par->channels;
2149  codec->sample_rate = par->sample_rate;
2150  codec->block_align = par->block_align;
2151  codec->frame_size = par->frame_size;
2152  codec->delay =
2153  codec->initial_padding = par->initial_padding;
2154  codec->trailing_padding = par->trailing_padding;
2155  codec->seek_preroll = par->seek_preroll;
2156  break;
2157  case AVMEDIA_TYPE_SUBTITLE:
2158  codec->width = par->width;
2159  codec->height = par->height;
2160  break;
2161  }
2162 
2163  if (par->extradata) {
2164  av_freep(&codec->extradata);
2166  if (!codec->extradata)
2167  return AVERROR(ENOMEM);
2168  memcpy(codec->extradata, par->extradata, par->extradata_size);
2169  codec->extradata_size = par->extradata_size;
2170  }
2171 
2172  return 0;
2173 }
2174 
2175 int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
2176  void **data, size_t *sei_size)
2177 {
2178  AVFrameSideData *side_data = NULL;
2179  uint8_t *sei_data;
2180 
2181  if (frame)
2182  side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
2183 
2184  if (!side_data) {
2185  *data = NULL;
2186  return 0;
2187  }
2188 
2189  *sei_size = side_data->size + 11;
2190  *data = av_mallocz(*sei_size + prefix_len);
2191  if (!*data)
2192  return AVERROR(ENOMEM);
2193  sei_data = (uint8_t*)*data + prefix_len;
2194 
2195  // country code
2196  sei_data[0] = 181;
2197  sei_data[1] = 0;
2198  sei_data[2] = 49;
2199 
2200  /**
2201  * 'GA94' is standard in North America for ATSC, but hard coding
2202  * this style may not be the right thing to do -- other formats
2203  * do exist. This information is not available in the side_data
2204  * so we are going with this right now.
2205  */
2206  AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
2207  sei_data[7] = 3;
2208  sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
2209  sei_data[9] = 0;
2210 
2211  memcpy(sei_data + 10, side_data->data, side_data->size);
2212 
2213  sei_data[side_data->size+10] = 255;
2214 
2215  return 0;
2216 }
2217 
2219 {
2220  AVRational framerate = avctx->framerate;
2221  int bits_per_coded_sample = avctx->bits_per_coded_sample;
2222  int64_t bitrate;
2223 
2224  if (!(framerate.num && framerate.den))
2225  framerate = av_inv_q(avctx->time_base);
2226  if (!(framerate.num && framerate.den))
2227  return 0;
2228 
2229  if (!bits_per_coded_sample) {
2231  bits_per_coded_sample = av_get_bits_per_pixel(desc);
2232  }
2233  bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2234  framerate.num / framerate.den;
2235 
2236  return bitrate;
2237 }
2238 
2239 int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
2240  const int * array_valid_values, int default_value)
2241 {
2242  int i = 0, ref_val;
2243 
2244  while (1) {
2245  ref_val = array_valid_values[i];
2246  if (ref_val == INT_MAX)
2247  break;
2248  if (val == ref_val)
2249  return val;
2250  i++;
2251  }
2252  /* val is not a valid value */
2253  av_log(ctx, AV_LOG_DEBUG,
2254  "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
2255  return default_value;
2256 }
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:2218
#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:2649
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:4071
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:3179
#define NULL
Definition: coverity.c:32
int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
Select the (possibly hardware accelerated) pixel format.
Definition: decode.c:1370
const struct AVCodec * codec
Definition: avcodec.h:1590
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:3121
const char const char void * val
Definition: avisynth_c.h:863
enum AVFieldOrder field_order
Video only.
Definition: avcodec.h:4062
static int64_t get_bit_rate(AVCodecContext *ctx)
Definition: utils.c:500
const AVCodecDescriptor * codec_descriptor
AVCodecDescriptor.
Definition: avcodec.h:3142
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:4069
#define AV_NUM_DATA_POINTERS
Definition: frame.h:296
static int shift(int a, int b)
Definition: sonic.c:82
planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:245
#define FF_SUB_CHARENC_MODE_AUTOMATIC
libavcodec will select the mode itself
Definition: avcodec.h:3178
static AVMutex mutex
Definition: log.c:44
int64_t pts_correction_num_faulty_dts
Number of incorrect PTS values so far.
Definition: avcodec.h:3159
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:126
unsigned int fourcc
Definition: raw.h:36
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2522
This structure describes decoded (raw) audio or video data.
Definition: frame.h:295
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
Definition: allcodecs.c:894
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:100
planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:249
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:159
const struct AVCodecHWConfigInternal ** hw_configs
Array of pointers to hardware configurations supported by the codec, or NULL if no hardware supported...
Definition: avcodec.h:3646
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:1769
const char * fmt
Definition: avisynth_c.h:861
AVPacket * last_pkt_props
Properties (timestamps+side data) extracted from the last packet passed for decoding.
Definition: internal.h:172
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
misc image utilities
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
AVFrame * f
Definition: thread.h:35
int64_t bit_rate
the average bitrate
Definition: avcodec.h:1631
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), 12b alpha, little-endian ...
Definition: pixfmt.h:346
AVFrame * to_free
Definition: internal.h:159
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
const char * g
Definition: vf_curves.c:115
const char * desc
Definition: nvenc.c:68
#define LIBAVCODEC_VERSION_MICRO
Definition: version.h:32
planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:162
int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
Return the number of bits per pixel used by the pixel format described by pixdesc.
Definition: pixdesc.c:2474
AVRational sample_aspect_ratio
Video only.
Definition: avcodec.h:4057
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:2487
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:1359
const char * avcodec_configuration(void)
Return the libavcodec build-time configuration.
Definition: utils.c:1442
uint32_t fourcc
Definition: vaapi_decode.c:238
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:2216
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:3981
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:3177
static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
Definition: utils.c:524
const char * avcodec_license(void)
Return the libavcodec license.
Definition: utils.c:1447
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:1960
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition: pixfmt.h:189
double, planar
Definition: samplefmt.h:70
enum AVMediaType codec_type
Definition: rtp.c:37
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:36
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1791
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:3961
int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec)
Definition: utils.c:496
void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
Same behaviour av_fast_malloc but the buffer has additional AV_INPUT_BUFFER_PADDING_SIZE at the end w...
Definition: utils.c:70
planar GBR 4:4:4 36bpp, little-endian
Definition: pixfmt.h:255
The following 12 formats have the disadvantage of needing 1 format for each bit depth.
Definition: pixfmt.h:156
#define AV_CODEC_CAP_EXPERIMENTAL
Codec is experimental and is thus avoided in favor of non experimental encoders.
Definition: avcodec.h:1035
mpegvideo header.
enum AVMediaType type
Definition: avcodec.h:3518
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:236
AVBufferPool * pools[4]
Pools for each data plane.
Definition: internal.h:105
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:2812
enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
Wrapper around get_format() for frame-multithreaded codecs.
Definition: utils.c:1848
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:1810
int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
Converts AVChromaLocation to swscale x/y chroma position.
Definition: utils.c:353
#define AV_CODEC_CAP_AUTO_THREADS
Codec supports avctx->thread_count == 0 (auto).
Definition: avcodec.h:1055
const struct AVHWAccel * hwaccel
Hardware accelerator in use.
Definition: avcodec.h:2745
int trailing_padding
Audio only.
Definition: avcodec.h:4117
#define src
Definition: vp8dsp.c:254
int profile
profile
Definition: avcodec.h:2914
planar GBR 4:4:4 36bpp, big-endian
Definition: pixfmt.h:254
AVCodec.
Definition: avcodec.h:3505
planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:131
int framerate
Definition: h264_levels.c:65
int block_align
number of bytes per packet if constant and known or 0 Used by some WAV based audio codecs...
Definition: avcodec.h:2278
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:3973
AVLockOp
Lock operation used by lockmgr.
Definition: avcodec.h:6155
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:3945
enum AVColorSpace color_space
Definition: avcodec.h:4070
const char * av_color_space_name(enum AVColorSpace space)
Definition: pixdesc.c:2915
Macro definitions for various function/variable attributes.
void ff_decode_bsfs_uninit(AVCodecContext *avctx)
Definition: decode.c:2059
int frame_size
Audio only.
Definition: avcodec.h:4102
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:1704
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:3962
int av_codec_is_decoder(const AVCodec *codec)
Definition: utils.c:99
int(* uninit)(AVCodecContext *avctx)
Uninitialize the hwaccel private data.
Definition: avcodec.h:3811
void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
Definition: utils.c:1891
int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels, enum AVSampleFormat sample_fmt, const uint8_t *buf, int buf_size, int align)
Fill AVFrame audio data and linesize pointers.
Definition: utils.c:376
int av_codec_is_encoder(const AVCodec *codec)
Definition: utils.c:94
uint64_t vbv_delay
The delay between the time the packet this structure is associated with is received and the time when...
Definition: avcodec.h:1176
planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), little-endian ...
Definition: pixfmt.h:179
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
Modify width and height values so that they will result in a memory buffer that is acceptable for the...
Definition: utils.c:338
#define FF_LEVEL_UNKNOWN
Definition: avcodec.h:3035
#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:214
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
Definition: internal.h:40
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101
void av_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
Definition: avpacket.c:62
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), 12b alpha, little-endian ...
Definition: pixfmt.h:344
enum AVSampleFormat sample_fmt
audio sample format
Definition: avcodec.h:2249
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:4047
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:2022
#define f(width, name)
Definition: cbs_vp9.c:255
const char * av_color_range_name(enum AVColorRange range)
Definition: pixdesc.c:2848
void * thread_ctx
Definition: internal.h:163
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
int ff_side_data_update_matrix_encoding(AVFrame *frame, enum AVMatrixEncoding matrix_encoding)
Add or update AV_FRAME_DATA_MATRIXENCODING side data.
Definition: utils.c:134
int trailing_padding
Audio only.
Definition: avcodec.h:3300
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:3244
#define LIBAVCODEC_VERSION_INT
Definition: version.h:34
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1682
#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:2118
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:1976
Public header for CRC hash function implementation.
void * frame_thread_encoder
Definition: internal.h:180
int initial_padding
Audio only.
Definition: avcodec.h:4110
Structure to hold side data for an AVFrame.
Definition: frame.h:201
int av_image_check_sar(unsigned int w, unsigned int h, AVRational sar)
Check if the given sample aspect ratio of an image is valid.
Definition: imgutils.c:287
int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Call avcodec_open2 recursively by decrementing counter, unlocking mutex, calling the function and the...
Definition: utils.c:536
planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), big-endian
Definition: pixfmt.h:276
planar GBR 4:4:4 48bpp, big-endian
Definition: pixfmt.h:174
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:100
uint32_t tag
Definition: movenc.c:1532
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:194
void av_memcpy_backptr(uint8_t *dst, int back, int cnt)
Overlapping memcpy() implementation.
Definition: mem.c:426
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
uint8_t * data
Definition: avcodec.h:1437
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:1554
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
Definition: avcodec.h:2820
int av_codec_get_max_lowres(const AVCodec *codec)
Definition: utils.c:490
enum AVSampleFormat av_get_planar_sample_fmt(enum AVSampleFormat sample_fmt)
Get the planar alternative form of the given sample format.
Definition: samplefmt.c:84
int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
Return the index into tab at which {a,b} match elements {[0],[1]} of tab.
Definition: utils.c:1780
ptrdiff_t size
Definition: opengl_enc.c:100
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
Definition: rational.c:35
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
Definition: avcodec.h:2805
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:889
signed 32 bits
Definition: samplefmt.h:62
static struct @321 state
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:1962
enum AVChromaLocation chroma_sample_location
This defines the location of chroma samples.
Definition: avcodec.h:2223
static void codec_parameters_reset(AVCodecParameters *par)
Definition: utils.c:2002
#define FFALIGN(x, a)
Definition: macros.h:48
uint64_t channel_layout
Audio only.
Definition: avcodec.h:4083
#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:4010
#define FF_COMPLIANCE_UNOFFICIAL
Allow unofficial extensions.
Definition: avcodec.h:2648
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:1804
planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:157
Libavcodec version macros.
av_cold int avcodec_close(AVCodecContext *avctx)
Close a given AVCodecContext and free all the data associated with it (but not the AVCodecContext its...
Definition: utils.c:1103
enum AVCodecID id
Definition: avcodec.h:3519
const uint64_t * channel_layouts
array of support channel layouts, or NULL if unknown. array is terminated by 0
Definition: avcodec.h:3529
planar GBR 4:4:4 27bpp, big-endian
Definition: pixfmt.h:170
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:165
const char * av_chroma_location_name(enum AVChromaLocation location)
Definition: pixdesc.c:2939
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:176
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: avcodec.h:215
unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
Definition: utils.c:485
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Copy the contents of src to dst.
Definition: utils.c:2043
int width
Definition: frame.h:353
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
int has_b_frames
Size of the frame reordering buffer in the decoder.
Definition: avcodec.h:1871
int av_get_bits_per_sample(enum AVCodecID codec_id)
Return codec bits per sample.
Definition: utils.c:1536
#define AVMutex
Definition: thread.h:151
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
int ff_int_from_list_or_default(void *ctx, const char *val_name, int val, const int *array_valid_values, int default_value)
Check if a value is in the list.
Definition: utils.c:2239
#define MAKE_ACCESSORS(str, name, type, field)
Definition: internal.h:91
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:136
unsigned int avpriv_toupper4(unsigned int x)
Definition: utils.c:1816
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:202
int(* send_frame)(AVCodecContext *avctx, const AVFrame *frame)
Encode API with decoupled packet/frame dataflow.
Definition: avcodec.h:3613
int qmax
maximum quantizer
Definition: avcodec.h:2430
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this field
int64_t pts_correction_last_pts
Number of incorrect DTS values so far.
Definition: avcodec.h:3160
int active_thread_type
Which multithreading methods are in use by the codec.
Definition: avcodec.h:2859
enum AVColorPrimaries color_primaries
Definition: avcodec.h:4068
int avcodec_is_open(AVCodecContext *s)
Definition: utils.c:1901
int video_delay
Video only.
Definition: avcodec.h:4076
const char * r
Definition: vf_curves.c:114
int av_match_list(const char *name, const char *list, char separator)
Check if a name is in a list.
Definition: avstring.c:449
AVFrame * buffer_frame
Definition: internal.h:202
int capabilities
Codec capabilities.
Definition: avcodec.h:3524
int initial_padding
Audio only.
Definition: avcodec.h:3112
#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:1759
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:568
#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:3977
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:1661
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:1439
int av_log_get_level(void)
Get the current log level.
Definition: log.c:382
const char * name
Name of the codec implementation.
Definition: avcodec.h:3512
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:3308
const struct AVProfile * profiles
If non-NULL, an array of profiles recognized for this codec.
Definition: avcodec.h:749
GLsizei count
Definition: opengl_enc.c:108
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), little-endian
Definition: pixfmt.h:183
void ff_thread_free(AVCodecContext *avctx)
Definition: pthread.c:82
#define FFMAX(a, b)
Definition: common.h:94
void avcodec_parameters_free(AVCodecParameters **ppar)
Free an AVCodecParameters instance and everything associated with it and write NULL to the supplied p...
Definition: utils.c:2032
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:1749
const char av_codec_ffversion[]
Definition: utils.c:66
static int ff_mutex_unlock(AVMutex *mutex)
Definition: thread.h:156
const char * av_color_primaries_name(enum AVColorPrimaries primaries)
Definition: pixdesc.c:2867
reference-counted frame API
const AVCodecDescriptor * avcodec_descriptor_get(enum AVCodecID id)
Definition: codec_desc.c:3301
uint64_t channel_layout
Audio channel layout.
Definition: avcodec.h:2292
int extradata_size
Size of the extradata content in bytes.
Definition: avcodec.h:3999
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:2444
int props
Codec properties, a combination of AV_CODEC_PROP_* flags.
Definition: avcodec.h:738
int ff_frame_thread_encoder_init(AVCodecContext *avctx, AVDictionary *options)
common internal API header
#define FF_MAX_EXTRADATA_SIZE
Maximum size in bytes of extradata.
Definition: internal.h:253
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:106
int refs
number of reference frames
Definition: avcodec.h:2169
planar GBR 4:4:4:4 48bpp, big-endian
Definition: pixfmt.h:287
int block_align
Audio only.
Definition: avcodec.h:4098
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
#define b
Definition: input.c:41
#define AV_MUTEX_INITIALIZER
Definition: thread.h:152
audio channel layout utility functions
enum AVPixelFormat * pix_fmts
array of supported pixel formats, or NULL if unknown, array is terminated by -1
Definition: avcodec.h:3526
#define FF_THREAD_FRAME
Decode more than one frame at once.
Definition: avcodec.h:2851
#define FFMIN(a, b)
Definition: common.h:96
AVPacketSideData * coded_side_data
Additional data associated with the entire coded stream.
Definition: avcodec.h:3253
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:1453
AVFrame * compat_decode_frame
Definition: internal.h:213
void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
Definition: utils.c:1895
int width
picture width / height.
Definition: avcodec.h:1754
static void ff_unlock_avcodec(const AVCodec *codec)
Definition: utils.c:530
AVBufferRef * hw_frames_ctx
A reference to the AVHWFramesContext describing the input (for encoding) or output (decoding) frames...
Definition: avcodec.h:3278
#define FF_PROFILE_UNKNOWN
Definition: avcodec.h:2915
int priv_data_size
Definition: avcodec.h:3553
int profile
Definition: avcodec.h:3439
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:877
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:2195
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:188
packed YUV 4:2:2, 16bpp, Y0 Cr Y1 Cb
Definition: pixfmt.h:210
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
#define s(width, name)
Definition: cbs_vp9.c:257
int level
level
Definition: avcodec.h:3034
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:1865
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:3532
int n
Definition: avisynth_c.h:760
static int av_bprint_is_complete(const AVBPrint *buf)
Test if the print buffer is complete (not truncated).
Definition: bprint.h:185
unsigned 8 bits, planar
Definition: samplefmt.h:66
int ticks_per_frame
For some codecs, the time base is closer to the field rate than the frame rate.
Definition: avcodec.h:1713
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:4067
Usually treated as AVMEDIA_TYPE_DATA.
Definition: avutil.h:200
Opaque data information usually sparse.
Definition: avutil.h:205
const char * av_get_colorspace_name(enum AVColorSpace val)
Get the name of a colorspace.
Definition: frame.c:122
DecodeSimpleContext ds
Definition: internal.h:165
enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags, unsigned int fourcc)
Definition: utils.c:467
char * sub_charenc
DTS of the last frame.
Definition: avcodec.h:3168
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:3940
#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:1169
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:2840
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:523
int sub_charenc_mode
Subtitles character encoding mode.
Definition: avcodec.h:3176
if(ret)
void av_get_channel_layout_string(char *buf, int buf_size, int nb_channels, uint64_t channel_layout)
Return a description of a channel layout.
planar GBR 4:4:4:4 48bpp, little-endian
Definition: pixfmt.h:288
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:368
const AVS_VideoInfo int align
Definition: avisynth_c.h:887
AVBufferRef * progress
Definition: thread.h:39
const char * av_get_profile_name(const AVCodec *codec, int profile)
Return a name for the specified profile, if available.
Definition: utils.c:1404
int frame_size
Number of samples per channel in an audio frame.
Definition: avcodec.h:2261
This structure describes the bitrate properties of an encoded bitstream.
Definition: avcodec.h:1134
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:2150
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:1799
Libavcodec external API header.
enum AVMediaType codec_type
Definition: avcodec.h:1589
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:1514
enum AVCodecID codec_id
Definition: avcodec.h:1591
int seek_preroll
Number of samples to skip after a discontinuity.
Definition: avcodec.h:3201
int av_opt_set_dict(void *obj, AVDictionary **options)
Set all the options from a given dictionary on an object.
Definition: opt.c:1657
int sample_rate
samples per second
Definition: avcodec.h:2241
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:326
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:177
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
uint8_t pi<< 24) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_U8,(uint64_t)((*(const uint8_t *) pi-0x80U))<< 56) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16,(*(const int16_t *) pi >>8)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S16,(uint64_t)(*(const int16_t *) pi)<< 48) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16,*(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16,*(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32,(*(const int32_t *) pi >>24)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S32,(uint64_t)(*(const int32_t *) pi)<< 32) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32,*(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32,*(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S64,(*(const int64_t *) pi >>56)+0x80) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S64,*(const int64_t *) pi *(1.0f/(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64,*(const int64_t *) pi *(1.0/(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(const float *) pi *(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(const double *) pi *(UINT64_C(1)<< 63)))#define FMT_PAIR_FUNC(out, in) static conv_func_type *const fmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB *AV_SAMPLE_FMT_NB]={FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64),};static void cpy1(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, len);}static void cpy2(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 2 *len);}static void cpy4(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 4 *len);}static void cpy8(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 8 *len);}AudioConvert *swri_audio_convert_alloc(enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, const int *ch_map, int flags){AudioConvert *ctx;conv_func_type *f=fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt)+AV_SAMPLE_FMT_NB *av_get_packed_sample_fmt(in_fmt)];if(!f) return NULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) return NULL;if(channels==1){in_fmt=av_get_planar_sample_fmt(in_fmt);out_fmt=av_get_planar_sample_fmt(out_fmt);}ctx->channels=channels;ctx->conv_f=f;ctx->ch_map=ch_map;if(in_fmt==AV_SAMPLE_FMT_U8||in_fmt==AV_SAMPLE_FMT_U8P) memset(ctx->silence, 0x80, sizeof(ctx->silence));if(out_fmt==in_fmt &&!ch_map){switch(av_get_bytes_per_sample(in_fmt)){case 1:ctx->simd_f=cpy1;break;case 2:ctx->simd_f=cpy2;break;case 4:ctx->simd_f=cpy4;break;case 8:ctx->simd_f=cpy8;break;}}if(HAVE_X86ASM &&1) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);return ctx;}void swri_audio_convert_free(AudioConvert **ctx){av_freep(ctx);}int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len){int ch;int off=0;const int os=(out->planar?1:out->ch_count)*out->bps;unsigned misaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask){int planes=in->planar?in->ch_count:1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;}if(ctx->out_simd_align_mask){int planes=out->planar?out->ch_count:1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;}if(ctx->simd_f &&!ctx->ch_map &&!misaligned){off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){if(out->planar==in->planar){int planes=out->planar?out->ch_count:1;for(ch=0;ch< planes;ch++){ctx->simd_f(out-> ch const uint8_t **in ch off *out planar
Definition: audioconvert.c:56
const AVCodecHWConfig * avcodec_get_hw_config(const AVCodec *codec, int index)
Retrieve supported hardware configurations for a codec.
Definition: utils.c:1787
planar GBR 4:4:4 30bpp, big-endian
Definition: pixfmt.h:172
main external API structure.
Definition: avcodec.h:1581
int(* receive_frame)(AVCodecContext *avctx, AVFrame *frame)
Decode API with decoupled packet/frame dataflow.
Definition: avcodec.h:3621
AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
Definition: allcodecs.c:899
int skip_samples_multiplier
Definition: internal.h:217
planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
Definition: pixfmt.h:192
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it be(in the first position) for now.Options-------Then comes the options array.This is what will define the user accessible options.For example
uint8_t * data
The data buffer.
Definition: buffer.h:89
int qmin
minimum quantizer
Definition: avcodec.h:2423
void avsubtitle_free(AVSubtitle *sub)
Free all allocated data in the given subtitle struct.
Definition: utils.c:1084
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> (&#39;D&#39;<<24) + (&#39;C&#39;<<16) + (&#39;B&#39;<<8) + &#39;A&#39;).
Definition: avcodec.h:1606
packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
Definition: pixfmt.h:67
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
Definition: decode.c:1968
static void encode(AVCodecContext *ctx, AVFrame *frame, AVPacket *pkt, FILE *output)
Definition: encode_audio.c:95
uint8_t * data
Definition: frame.h:203
planar YUV 4:4:0,24bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
Definition: pixfmt.h:277
#define AV_CODEC_PROP_BITMAP_SUB
Subtitle codec is bitmap based Decoded AVSubtitle data can be read from the AVSubtitleRect->pict fiel...
Definition: avcodec.h:781
planar GBR 4:4:4 42bpp, little-endian
Definition: pixfmt.h:257
void * buf
Definition: avisynth_c.h:766
int extradata_size
Definition: avcodec.h:1683
int(* close)(AVCodecContext *)
Definition: avcodec.h:3604
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
Encode extradata length to a buffer.
Definition: utils.c:1766
int nb_coded_side_data
Definition: avcodec.h:3254
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:1769
int(* func)(AVBPrint *dst, const char *in, const char *arg)
Definition: jacosubdec.c:67
Describe the class of an AVClass context structure.
Definition: log.h:67
#define FF_CODEC_PROPERTY_CLOSED_CAPTIONS
Definition: avcodec.h:3245
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:276
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:2209
Rational number (pair of numerator and denominator).
Definition: rational.h:58
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:2202
void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
Wrapper around release_buffer() frame-for multithreaded codecs.
Definition: utils.c:1859
const char * name
short name for the profile
Definition: avcodec.h:3440
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:2061
This struct describes a set or pool of "hardware" frames (i.e.
Definition: hwcontext.h:123
planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:244
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), 12b alpha, big-endian ...
Definition: pixfmt.h:345
size_t av_strlcatf(char *dst, size_t size, const char *fmt,...)
Definition: avstring.c:101
planar GBR 4:4:4 42bpp, big-endian
Definition: pixfmt.h:256
char * codec_whitelist
&#39;,&#39; separated list of allowed decoders.
Definition: avcodec.h:3236
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:730
int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Initialize the AVCodecContext to use the given AVCodec.
Definition: utils.c:548
#define snprintf
Definition: snprintf.h:34
int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
Return audio frame duration.
Definition: utils.c:1740
size_t av_strlcat(char *dst, const char *src, size_t size)
Append the string src to the string dst, but to a total length of no more than size - 1 bytes...
Definition: avstring.c:93
uint8_t pi<< 24) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_U8,(uint64_t)((*(const uint8_t *) pi-0x80U))<< 56) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16,(*(const int16_t *) pi >>8)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S16,(uint64_t)(*(const int16_t *) pi)<< 48) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16,*(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16,*(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32,(*(const int32_t *) pi >>24)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S32,(uint64_t)(*(const int32_t *) pi)<< 32) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32,*(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32,*(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S64,(*(const int64_t *) pi >>56)+0x80) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S64,*(const int64_t *) pi *(1.0f/(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64,*(const int64_t *) pi *(1.0/(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(const float *) pi *(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(const double *) pi *(UINT64_C(1)<< 63)))#define FMT_PAIR_FUNC(out, in) static conv_func_type *const fmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB *AV_SAMPLE_FMT_NB]={FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64),};static void cpy1(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, len);}static void cpy2(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 2 *len);}static void cpy4(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 4 *len);}static void cpy8(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 8 *len);}AudioConvert *swri_audio_convert_alloc(enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, const int *ch_map, int flags){AudioConvert *ctx;conv_func_type *f=fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt)+AV_SAMPLE_FMT_NB *av_get_packed_sample_fmt(in_fmt)];if(!f) return NULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) return NULL;if(channels==1){in_fmt=av_get_planar_sample_fmt(in_fmt);out_fmt=av_get_planar_sample_fmt(out_fmt);}ctx->channels=channels;ctx->conv_f=f;ctx->ch_map=ch_map;if(in_fmt==AV_SAMPLE_FMT_U8||in_fmt==AV_SAMPLE_FMT_U8P) memset(ctx->silence, 0x80, sizeof(ctx->silence));if(out_fmt==in_fmt &&!ch_map){switch(av_get_bytes_per_sample(in_fmt)){case 1:ctx->simd_f=cpy1;break;case 2:ctx->simd_f=cpy2;break;case 4:ctx->simd_f=cpy4;break;case 8:ctx->simd_f=cpy8;break;}}if(HAVE_X86ASM &&1) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);return ctx;}void swri_audio_convert_free(AudioConvert **ctx){av_freep(ctx);}int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len){int ch;int off=0;const int os=(out->planar?1:out->ch_count)*out->bps;unsigned misaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask){int planes=in->planar?in->ch_count:1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;}if(ctx->out_simd_align_mask){int planes=out->planar?out->ch_count:1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;}if(ctx->simd_f &&!ctx->ch_map &&!misaligned){off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){if(out->planar==in->planar){int planes=out->planar?out->ch_count:1;for(ch=0;ch< planes;ch++){ctx->simd_f(out-> ch ch
Definition: audioconvert.c:56
mfxU16 profile
Definition: qsvenc.c:44
int seek_preroll
Audio only.
Definition: avcodec.h:4121
This struct describes the properties of a single codec described by an AVCodecID. ...
Definition: avcodec.h:722
int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
Finalize buf into extradata and set its size appropriately.
Definition: utils.c:1906
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:564
int bits_per_raw_sample
This is the number of valid bits in each output sample.
Definition: avcodec.h:4036
const AVClass * priv_class
AVClass for the private context.
Definition: avcodec.h:3531
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:309
planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:163
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:135
int av_get_bytes_per_sample(enum AVSampleFormat sample_fmt)
Return number of bytes per sample.
Definition: samplefmt.c:106
void ff_color_frame(AVFrame *frame, const int c[4])
Definition: utils.c:412
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
Definition: rational.h:159
int sample_rate
Audio only.
Definition: avcodec.h:4091
enum AVMediaType type
Definition: avcodec.h:724
uint8_t max_lowres
maximum value for lowres supported by the decoder
Definition: avcodec.h:3530
AVPacket * buffer_pkt
buffers for using new encode/decode API through legacy API
Definition: internal.h:200
int64_t bitrate
Definition: h264_levels.c:131
static int op(uint8_t **dst, const uint8_t *dst_end, GetByteContext *gb, int pixel, int count, int *x, int width, int linesize)
Perform decode operation.
Definition: anm.c:78
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:247
Y , 8bpp.
Definition: pixfmt.h:74
void av_opt_free(void *obj)
Free all allocated objects in obj.
Definition: opt.c:1612
const OptionDef options[]
Definition: ffmpeg_opt.c:3374
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:84
int(* decode)(AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt)
Definition: avcodec.h:3603
common internal api header.
enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
Converts swscale x/y chroma position to AVChromaLocation.
Definition: utils.c:365
#define FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM
The decoder extracts and fills its parameters even if the frame is skipped due to the skip_frame sett...
Definition: internal.h:60
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:215
signed 16 bits
Definition: samplefmt.h:61
planar GBR 4:4:4 27bpp, little-endian
Definition: pixfmt.h:171
int(* init)(AVCodecContext *)
Definition: avcodec.h:3588
int profile
Codec-specific bitstream restrictions that the stream conforms to.
Definition: avcodec.h:4041
const char * av_color_transfer_name(enum AVColorTransferCharacteristic transfer)
Definition: pixdesc.c:2891
void * hwaccel_priv_data
hwaccel-specific private data
Definition: internal.h:190
void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
Same behaviour av_fast_padded_malloc except that buffer will always be 0-initialized after call...
Definition: utils.c:82
int(* encode_sub)(AVCodecContext *, uint8_t *buf, int buf_size, const struct AVSubtitle *sub)
Definition: avcodec.h:3589
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:94
AVProfile.
Definition: avcodec.h:3438
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:1877
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:2831
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:1869
packed RGB 3:3:2, 8bpp, (msb)2R 3G 3B(lsb)
Definition: pixfmt.h:86
static const uint64_t c2
Definition: murmur3.c:50
#define AV_PIX_FMT_RGB555
Definition: pixfmt.h:375
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
int caps_internal
Internal codec capabilities.
Definition: avcodec.h:3631
unsigned properties
Properties of the stream that gets decoded.
Definition: avcodec.h:3243
int den
Denominator.
Definition: rational.h:60
int avcodec_default_execute2(AVCodecContext *c, int(*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
Definition: utils.c:454
int av_image_check_size2(unsigned int w, unsigned int h, int64_t max_pixels, enum AVPixelFormat pix_fmt, int log_offset, void *log_ctx)
Check if the given dimension of an image is valid, meaning that all bytes of a plane of an image with...
Definition: imgutils.c:253
unsigned bps
Definition: movenc.c:1533
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition: pixfmt.h:185
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
Definition: avcodec.h:796
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
Definition: utils.c:1209
#define AV_CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:881
static int lowres
Definition: ffplay.c:335
void * priv_data
Definition: avcodec.h:1608
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:1189
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:3228
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:85
int(* encode2)(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
Encode data to an AVPacket.
Definition: avcodec.h:3601
#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:585
int len
int channels
number of audio channels
Definition: avcodec.h:2242
const int * supported_samplerates
array of supported audio samplerates, or NULL if unknown, array is terminated by 0 ...
Definition: avcodec.h:3527
struct AVCodecInternal * internal
Private context used for internal data.
Definition: avcodec.h:1616
unsigned avcodec_version(void)
Return the LIBAVCODEC_VERSION_INT constant.
Definition: utils.c:1432
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:3952
This side data corresponds to the AVCPBProperties struct.
Definition: avcodec.h:1300
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:258
Not part of ABI.
Definition: pixfmt.h:550
signed 64 bits, planar
Definition: samplefmt.h:72
int bits_per_coded_sample
The number of bits per sample in the codedwords.
Definition: avcodec.h:4023
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: avcodec.h:3995
static const struct twinvq_data tab
unsigned int byte_buffer_size
Definition: internal.h:178
int channels
Audio only.
Definition: avcodec.h:4087
void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
Wait for earlier decoding threads to finish reference pictures.
Definition: utils.c:1873
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:3161
int frame_number
Frame counter, set by libavcodec.
Definition: avcodec.h:2272
int height
Definition: frame.h:353
void ff_frame_thread_encoder_free(AVCodecContext *avctx)
#define av_freep(p)
int64_t pts_correction_num_faulty_pts
Current statistics for PTS correction.
Definition: avcodec.h:3158
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:2238
signed 16 bits, planar
Definition: samplefmt.h:67
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:542
int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
Definition: utils.c:1824
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:3528
AVMatrixEncoding
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
Definition: utils.c:1853
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
Definition: avcodec.h:3985
int ff_alloc_entries(AVCodecContext *avctx, int count)
Definition: utils.c:1882
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:2175
int nb_channels
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
Definition: pixdesc.c:2438
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), little-endian
Definition: pixfmt.h:181
const uint8_t * avpriv_find_start_code(const uint8_t *av_restrict p, const uint8_t *end, uint32_t *av_restrict state)
Definition: utils.c:1929
void ff_reset_entries(AVCodecContext *avctx)
Definition: utils.c:1887
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
int depth
Number of bits in the component.
Definition: pixdesc.h:58
uint8_t ** extended_data
pointers to the data planes/channels.
Definition: frame.h:342
#define MKTAG(a, b, c, d)
Definition: common.h:366
planar GBRA 4:4:4:4 64bpp, little-endian
Definition: pixfmt.h:217
AVBufferRef * hw_device_ctx
A reference to the AVHWDeviceContext describing the device which will be used by a hardware encoder/d...
Definition: avcodec.h:3330
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:1417
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:1737
int nb_samples
number of audio samples (per channel) described by this frame
Definition: frame.h:361
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
Definition: pixdesc.h:144
int strict_std_compliance
strictly follow the standard (MPEG-4, ...).
Definition: avcodec.h:2644
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:3128
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:246
#define FFMAX3(a, b, c)
Definition: common.h:95
planar GBR 4:4:4 30bpp, little-endian
Definition: pixfmt.h:173
int avcodec_default_execute(AVCodecContext *c, int(*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
Definition: utils.c:441
#define AV_WL32(p, v)
Definition: intreadwrite.h:426
int64_t rc_max_rate
maximum bitrate
Definition: avcodec.h:2459
void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.c:191
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), 12b alpha, big-endian ...
Definition: pixfmt.h:343
uint8_t * subtitle_header
Header containing style information for text subtitles.
Definition: avcodec.h:3066
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