FFmpeg
utils.c
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1 /*
2  * utils for libavcodec
3  * Copyright (c) 2001 Fabrice Bellard
4  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 /**
24  * @file
25  * utils.
26  */
27 
28 #include "config.h"
29 #include "libavutil/attributes.h"
30 #include "libavutil/avassert.h"
31 #include "libavutil/avstring.h"
32 #include "libavutil/bprint.h"
34 #include "libavutil/crc.h"
35 #include "libavutil/frame.h"
36 #include "libavutil/hwcontext.h"
37 #include "libavutil/internal.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/mem_internal.h"
40 #include "libavutil/pixdesc.h"
41 #include "libavutil/imgutils.h"
42 #include "libavutil/samplefmt.h"
43 #include "libavutil/dict.h"
44 #include "libavutil/thread.h"
45 #include "avcodec.h"
46 #include "decode.h"
47 #include "hwaccel.h"
48 #include "libavutil/opt.h"
49 #include "mpegvideo.h"
50 #include "thread.h"
51 #include "frame_thread_encoder.h"
52 #include "internal.h"
53 #include "raw.h"
54 #include "bytestream.h"
55 #include "version.h"
56 #include <stdlib.h>
57 #include <stdarg.h>
58 #include <stdatomic.h>
59 #include <limits.h>
60 #include <float.h>
61 #if CONFIG_ICONV
62 # include <iconv.h>
63 #endif
64 
65 #include "libavutil/ffversion.h"
66 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
67 
69 
70 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
71 {
72  uint8_t **p = ptr;
73  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
74  av_freep(p);
75  *size = 0;
76  return;
77  }
78  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
79  memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
80 }
81 
82 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
83 {
84  uint8_t **p = ptr;
85  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
86  av_freep(p);
87  *size = 0;
88  return;
89  }
90  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
91  memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
92 }
93 
94 int av_codec_is_encoder(const AVCodec *codec)
95 {
96  return codec && (codec->encode_sub || codec->encode2 ||codec->send_frame);
97 }
98 
99 int av_codec_is_decoder(const AVCodec *codec)
100 {
101  return codec && (codec->decode || codec->receive_frame);
102 }
103 
105 {
106  int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
107 
108  if (ret < 0)
109  width = height = 0;
110 
111  s->coded_width = width;
112  s->coded_height = height;
113  s->width = AV_CEIL_RSHIFT(width, s->lowres);
114  s->height = AV_CEIL_RSHIFT(height, s->lowres);
115 
116  return ret;
117 }
118 
120 {
121  int ret = av_image_check_sar(avctx->width, avctx->height, sar);
122 
123  if (ret < 0) {
124  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
125  sar.num, sar.den);
126  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
127  return ret;
128  } else {
129  avctx->sample_aspect_ratio = sar;
130  }
131  return 0;
132 }
133 
135  enum AVMatrixEncoding matrix_encoding)
136 {
137  AVFrameSideData *side_data;
138  enum AVMatrixEncoding *data;
139 
141  if (!side_data)
143  sizeof(enum AVMatrixEncoding));
144 
145  if (!side_data)
146  return AVERROR(ENOMEM);
147 
148  data = (enum AVMatrixEncoding*)side_data->data;
149  *data = matrix_encoding;
150 
151  return 0;
152 }
153 
155  int linesize_align[AV_NUM_DATA_POINTERS])
156 {
157  int i;
158  int w_align = 1;
159  int h_align = 1;
161 
162  if (desc) {
163  w_align = 1 << desc->log2_chroma_w;
164  h_align = 1 << desc->log2_chroma_h;
165  }
166 
167  switch (s->pix_fmt) {
168  case AV_PIX_FMT_YUV420P:
169  case AV_PIX_FMT_YUYV422:
170  case AV_PIX_FMT_YVYU422:
171  case AV_PIX_FMT_UYVY422:
172  case AV_PIX_FMT_YUV422P:
173  case AV_PIX_FMT_YUV440P:
174  case AV_PIX_FMT_YUV444P:
175  case AV_PIX_FMT_GBRP:
176  case AV_PIX_FMT_GBRAP:
177  case AV_PIX_FMT_GRAY8:
178  case AV_PIX_FMT_GRAY16BE:
179  case AV_PIX_FMT_GRAY16LE:
180  case AV_PIX_FMT_YUVJ420P:
181  case AV_PIX_FMT_YUVJ422P:
182  case AV_PIX_FMT_YUVJ440P:
183  case AV_PIX_FMT_YUVJ444P:
184  case AV_PIX_FMT_YUVA420P:
185  case AV_PIX_FMT_YUVA422P:
186  case AV_PIX_FMT_YUVA444P:
243  case AV_PIX_FMT_GBRP9LE:
244  case AV_PIX_FMT_GBRP9BE:
245  case AV_PIX_FMT_GBRP10LE:
246  case AV_PIX_FMT_GBRP10BE:
247  case AV_PIX_FMT_GBRP12LE:
248  case AV_PIX_FMT_GBRP12BE:
249  case AV_PIX_FMT_GBRP14LE:
250  case AV_PIX_FMT_GBRP14BE:
251  case AV_PIX_FMT_GBRP16LE:
252  case AV_PIX_FMT_GBRP16BE:
257  w_align = 16; //FIXME assume 16 pixel per macroblock
258  h_align = 16 * 2; // interlaced needs 2 macroblocks height
259  break;
260  case AV_PIX_FMT_YUV411P:
261  case AV_PIX_FMT_YUVJ411P:
263  w_align = 32;
264  h_align = 16 * 2;
265  break;
266  case AV_PIX_FMT_YUV410P:
267  if (s->codec_id == AV_CODEC_ID_SVQ1) {
268  w_align = 64;
269  h_align = 64;
270  }
271  break;
272  case AV_PIX_FMT_RGB555:
273  if (s->codec_id == AV_CODEC_ID_RPZA) {
274  w_align = 4;
275  h_align = 4;
276  }
278  w_align = 8;
279  h_align = 8;
280  }
281  break;
282  case AV_PIX_FMT_PAL8:
283  case AV_PIX_FMT_BGR8:
284  case AV_PIX_FMT_RGB8:
285  if (s->codec_id == AV_CODEC_ID_SMC ||
287  w_align = 4;
288  h_align = 4;
289  }
290  if (s->codec_id == AV_CODEC_ID_JV ||
292  w_align = 8;
293  h_align = 8;
294  }
295  break;
296  case AV_PIX_FMT_BGR24:
297  if ((s->codec_id == AV_CODEC_ID_MSZH) ||
298  (s->codec_id == AV_CODEC_ID_ZLIB)) {
299  w_align = 4;
300  h_align = 4;
301  }
302  break;
303  case AV_PIX_FMT_RGB24:
304  if (s->codec_id == AV_CODEC_ID_CINEPAK) {
305  w_align = 4;
306  h_align = 4;
307  }
308  break;
309  default:
310  break;
311  }
312 
313  if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
314  w_align = FFMAX(w_align, 8);
315  }
316 
317  *width = FFALIGN(*width, w_align);
318  *height = FFALIGN(*height, h_align);
319  if (s->codec_id == AV_CODEC_ID_H264 || s->lowres ||
322  ) {
323  // some of the optimized chroma MC reads one line too much
324  // which is also done in mpeg decoders with lowres > 0
325  *height += 2;
326 
327  // H.264 uses edge emulation for out of frame motion vectors, for this
328  // it requires a temporary area large enough to hold a 21x21 block,
329  // increasing witdth ensure that the temporary area is large enough,
330  // the next rounded up width is 32
331  *width = FFMAX(*width, 32);
332  }
333 
334  for (i = 0; i < 4; i++)
335  linesize_align[i] = STRIDE_ALIGN;
336 }
337 
339 {
341  int chroma_shift = desc->log2_chroma_w;
342  int linesize_align[AV_NUM_DATA_POINTERS];
343  int align;
344 
345  avcodec_align_dimensions2(s, width, height, linesize_align);
346  align = FFMAX(linesize_align[0], linesize_align[3]);
347  linesize_align[1] <<= chroma_shift;
348  linesize_align[2] <<= chroma_shift;
349  align = FFMAX3(align, linesize_align[1], linesize_align[2]);
350  *width = FFALIGN(*width, align);
351 }
352 
353 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
354 {
355  if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
356  return AVERROR(EINVAL);
357  pos--;
358 
359  *xpos = (pos&1) * 128;
360  *ypos = ((pos>>1)^(pos<4)) * 128;
361 
362  return 0;
363 }
364 
366 {
367  int pos, xout, yout;
368 
369  for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
370  if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
371  return pos;
372  }
374 }
375 
377  enum AVSampleFormat sample_fmt, const uint8_t *buf,
378  int buf_size, int align)
379 {
380  int ch, planar, needed_size, ret = 0;
381 
382  needed_size = av_samples_get_buffer_size(NULL, nb_channels,
383  frame->nb_samples, sample_fmt,
384  align);
385  if (buf_size < needed_size)
386  return AVERROR(EINVAL);
387 
388  planar = av_sample_fmt_is_planar(sample_fmt);
389  if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
390  if (!(frame->extended_data = av_mallocz_array(nb_channels,
391  sizeof(*frame->extended_data))))
392  return AVERROR(ENOMEM);
393  } else {
394  frame->extended_data = frame->data;
395  }
396 
397  if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
398  (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
399  sample_fmt, align)) < 0) {
400  if (frame->extended_data != frame->data)
401  av_freep(&frame->extended_data);
402  return ret;
403  }
404  if (frame->extended_data != frame->data) {
405  for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
406  frame->data[ch] = frame->extended_data[ch];
407  }
408 
409  return ret;
410 }
411 
412 void ff_color_frame(AVFrame *frame, const int c[4])
413 {
415  int p, y;
416 
418 
419  for (p = 0; p<desc->nb_components; p++) {
420  uint8_t *dst = frame->data[p];
421  int is_chroma = p == 1 || p == 2;
422  int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
423  int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
424  if (desc->comp[0].depth >= 9) {
425  ((uint16_t*)dst)[0] = c[p];
426  av_memcpy_backptr(dst + 2, 2, bytes - 2);
427  dst += frame->linesize[p];
428  for (y = 1; y < height; y++) {
429  memcpy(dst, frame->data[p], 2*bytes);
430  dst += frame->linesize[p];
431  }
432  } else {
433  for (y = 0; y < height; y++) {
434  memset(dst, c[p], bytes);
435  dst += frame->linesize[p];
436  }
437  }
438  }
439 }
440 
441 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
442 {
443  int i;
444 
445  for (i = 0; i < count; i++) {
446  int r = func(c, (char *)arg + i * size);
447  if (ret)
448  ret[i] = r;
449  }
450  emms_c();
451  return 0;
452 }
453 
454 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
455 {
456  int i;
457 
458  for (i = 0; i < count; i++) {
459  int r = func(c, arg, i, 0);
460  if (ret)
461  ret[i] = r;
462  }
463  emms_c();
464  return 0;
465 }
466 
468  unsigned int fourcc)
469 {
470  while (tags->pix_fmt >= 0) {
471  if (tags->fourcc == fourcc)
472  return tags->pix_fmt;
473  tags++;
474  }
475  return AV_PIX_FMT_NONE;
476 }
477 
478 #if FF_API_CODEC_GET_SET
479 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
480 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
482 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
483 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
484 
486 {
487  return codec->properties;
488 }
489 
491 {
492  return codec->max_lowres;
493 }
494 #endif
495 
498 }
499 
501 {
502  int64_t bit_rate;
503  int bits_per_sample;
504 
505  switch (ctx->codec_type) {
506  case AVMEDIA_TYPE_VIDEO:
507  case AVMEDIA_TYPE_DATA:
510  bit_rate = ctx->bit_rate;
511  break;
512  case AVMEDIA_TYPE_AUDIO:
513  bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
514  bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
515  break;
516  default:
517  bit_rate = 0;
518  break;
519  }
520  return bit_rate;
521 }
522 
523 
524 static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
525 {
526  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
528 }
529 
530 static void ff_unlock_avcodec(const AVCodec *codec)
531 {
532  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
534 }
535 
536 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
537 {
538  int ret = 0;
539 
540  ff_unlock_avcodec(codec);
541 
542  ret = avcodec_open2(avctx, codec, options);
543 
544  ff_lock_avcodec(avctx, codec);
545  return ret;
546 }
547 
548 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
549 {
550  int ret = 0;
551  int codec_init_ok = 0;
552  AVDictionary *tmp = NULL;
553  const AVPixFmtDescriptor *pixdesc;
554 
555  if (avcodec_is_open(avctx))
556  return 0;
557 
558  if ((!codec && !avctx->codec)) {
559  av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
560  return AVERROR(EINVAL);
561  }
562  if ((codec && avctx->codec && codec != avctx->codec)) {
563  av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
564  "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
565  return AVERROR(EINVAL);
566  }
567  if (!codec)
568  codec = avctx->codec;
569 
570  if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
571  return AVERROR(EINVAL);
572 
573  if (options)
574  av_dict_copy(&tmp, *options, 0);
575 
576  ff_lock_avcodec(avctx, codec);
577 
578  avctx->internal = av_mallocz(sizeof(*avctx->internal));
579  if (!avctx->internal) {
580  ret = AVERROR(ENOMEM);
581  goto end;
582  }
583 
584  avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
585  if (!avctx->internal->pool) {
586  ret = AVERROR(ENOMEM);
587  goto free_and_end;
588  }
589 
590  avctx->internal->to_free = av_frame_alloc();
591  if (!avctx->internal->to_free) {
592  ret = AVERROR(ENOMEM);
593  goto free_and_end;
594  }
595 
597  if (!avctx->internal->compat_decode_frame) {
598  ret = AVERROR(ENOMEM);
599  goto free_and_end;
600  }
601 
603  if (!avctx->internal->buffer_frame) {
604  ret = AVERROR(ENOMEM);
605  goto free_and_end;
606  }
607 
608  avctx->internal->buffer_pkt = av_packet_alloc();
609  if (!avctx->internal->buffer_pkt) {
610  ret = AVERROR(ENOMEM);
611  goto free_and_end;
612  }
613 
614  avctx->internal->ds.in_pkt = av_packet_alloc();
615  if (!avctx->internal->ds.in_pkt) {
616  ret = AVERROR(ENOMEM);
617  goto free_and_end;
618  }
619 
621  if (!avctx->internal->last_pkt_props) {
622  ret = AVERROR(ENOMEM);
623  goto free_and_end;
624  }
625 
626  avctx->internal->skip_samples_multiplier = 1;
627 
628  if (codec->priv_data_size > 0) {
629  if (!avctx->priv_data) {
630  avctx->priv_data = av_mallocz(codec->priv_data_size);
631  if (!avctx->priv_data) {
632  ret = AVERROR(ENOMEM);
633  goto end;
634  }
635  if (codec->priv_class) {
636  *(const AVClass **)avctx->priv_data = codec->priv_class;
638  }
639  }
640  if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
641  goto free_and_end;
642  } else {
643  avctx->priv_data = NULL;
644  }
645  if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
646  goto free_and_end;
647 
648  if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
649  av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
650  ret = AVERROR(EINVAL);
651  goto free_and_end;
652  }
653 
654  // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
655  if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
656  (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
657  if (avctx->coded_width && avctx->coded_height)
658  ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
659  else if (avctx->width && avctx->height)
660  ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
661  if (ret < 0)
662  goto free_and_end;
663  }
664 
665  if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
666  && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
667  || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
668  av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
669  ff_set_dimensions(avctx, 0, 0);
670  }
671 
672  if (avctx->width > 0 && avctx->height > 0) {
673  if (av_image_check_sar(avctx->width, avctx->height,
674  avctx->sample_aspect_ratio) < 0) {
675  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
676  avctx->sample_aspect_ratio.num,
677  avctx->sample_aspect_ratio.den);
678  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
679  }
680  }
681 
682  /* if the decoder init function was already called previously,
683  * free the already allocated subtitle_header before overwriting it */
684  if (av_codec_is_decoder(codec))
685  av_freep(&avctx->subtitle_header);
686 
687  if (avctx->channels > FF_SANE_NB_CHANNELS || avctx->channels < 0) {
688  av_log(avctx, AV_LOG_ERROR, "Too many or invalid channels: %d\n", avctx->channels);
689  ret = AVERROR(EINVAL);
690  goto free_and_end;
691  }
692  if (avctx->sample_rate < 0) {
693  av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate);
694  ret = AVERROR(EINVAL);
695  goto free_and_end;
696  }
697  if (avctx->block_align < 0) {
698  av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align);
699  ret = AVERROR(EINVAL);
700  goto free_and_end;
701  }
702 
703  avctx->codec = codec;
704  if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
705  avctx->codec_id == AV_CODEC_ID_NONE) {
706  avctx->codec_type = codec->type;
707  avctx->codec_id = codec->id;
708  }
709  if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
710  && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
711  av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
712  ret = AVERROR(EINVAL);
713  goto free_and_end;
714  }
715  avctx->frame_number = 0;
717 
718  if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
720  const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
721  AVCodec *codec2;
722  av_log(avctx, AV_LOG_ERROR,
723  "The %s '%s' is experimental but experimental codecs are not enabled, "
724  "add '-strict %d' if you want to use it.\n",
725  codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
726  codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
727  if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
728  av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
729  codec_string, codec2->name);
730  ret = AVERROR_EXPERIMENTAL;
731  goto free_and_end;
732  }
733 
734  if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
735  (!avctx->time_base.num || !avctx->time_base.den)) {
736  avctx->time_base.num = 1;
737  avctx->time_base.den = avctx->sample_rate;
738  }
739 
740  if (!HAVE_THREADS)
741  av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
742 
743  if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
744  ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
745  ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
746  ff_lock_avcodec(avctx, codec);
747  if (ret < 0)
748  goto free_and_end;
749  }
750 
751  if (av_codec_is_decoder(avctx->codec)) {
752  ret = ff_decode_bsfs_init(avctx);
753  if (ret < 0)
754  goto free_and_end;
755  }
756 
757  if (HAVE_THREADS
759  ret = ff_thread_init(avctx);
760  if (ret < 0) {
761  goto free_and_end;
762  }
763  }
764  if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
765  avctx->thread_count = 1;
766 
767  if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
768  av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
769  avctx->codec->max_lowres);
770  avctx->lowres = avctx->codec->max_lowres;
771  }
772 
773  if (av_codec_is_encoder(avctx->codec)) {
774  int i;
775 #if FF_API_CODED_FRAME
777  avctx->coded_frame = av_frame_alloc();
778  if (!avctx->coded_frame) {
779  ret = AVERROR(ENOMEM);
780  goto free_and_end;
781  }
783 #endif
784 
785  if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
786  av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
787  ret = AVERROR(EINVAL);
788  goto free_and_end;
789  }
790 
791  if (avctx->codec->sample_fmts) {
792  for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
793  if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
794  break;
795  if (avctx->channels == 1 &&
798  avctx->sample_fmt = avctx->codec->sample_fmts[i];
799  break;
800  }
801  }
802  if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
803  char buf[128];
804  snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
805  av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
806  (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
807  ret = AVERROR(EINVAL);
808  goto free_and_end;
809  }
810  }
811  if (avctx->codec->pix_fmts) {
812  for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
813  if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
814  break;
815  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
816  && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
818  char buf[128];
819  snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
820  av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
821  (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
822  ret = AVERROR(EINVAL);
823  goto free_and_end;
824  }
825  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
826  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
827  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
828  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
829  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
830  avctx->color_range = AVCOL_RANGE_JPEG;
831  }
832  if (avctx->codec->supported_samplerates) {
833  for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
834  if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
835  break;
836  if (avctx->codec->supported_samplerates[i] == 0) {
837  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
838  avctx->sample_rate);
839  ret = AVERROR(EINVAL);
840  goto free_and_end;
841  }
842  }
843  if (avctx->sample_rate < 0) {
844  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
845  avctx->sample_rate);
846  ret = AVERROR(EINVAL);
847  goto free_and_end;
848  }
849  if (avctx->codec->channel_layouts) {
850  if (!avctx->channel_layout) {
851  av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
852  } else {
853  for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
854  if (avctx->channel_layout == avctx->codec->channel_layouts[i])
855  break;
856  if (avctx->codec->channel_layouts[i] == 0) {
857  char buf[512];
858  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
859  av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
860  ret = AVERROR(EINVAL);
861  goto free_and_end;
862  }
863  }
864  }
865  if (avctx->channel_layout && avctx->channels) {
867  if (channels != avctx->channels) {
868  char buf[512];
869  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
870  av_log(avctx, AV_LOG_ERROR,
871  "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
872  buf, channels, avctx->channels);
873  ret = AVERROR(EINVAL);
874  goto free_and_end;
875  }
876  } else if (avctx->channel_layout) {
878  }
879  if (avctx->channels < 0) {
880  av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
881  avctx->channels);
882  ret = AVERROR(EINVAL);
883  goto free_and_end;
884  }
885  if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
886  pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
887  if ( avctx->bits_per_raw_sample < 0
888  || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
889  av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
890  avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
891  avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
892  }
893  if (avctx->width <= 0 || avctx->height <= 0) {
894  av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
895  ret = AVERROR(EINVAL);
896  goto free_and_end;
897  }
898  }
899  if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
900  && avctx->bit_rate>0 && avctx->bit_rate<1000) {
901  av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
902  }
903 
904  if (!avctx->rc_initial_buffer_occupancy)
905  avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
906 
907  if (avctx->ticks_per_frame && avctx->time_base.num &&
908  avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
909  av_log(avctx, AV_LOG_ERROR,
910  "ticks_per_frame %d too large for the timebase %d/%d.",
911  avctx->ticks_per_frame,
912  avctx->time_base.num,
913  avctx->time_base.den);
914  goto free_and_end;
915  }
916 
917  if (avctx->hw_frames_ctx) {
918  AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
919  if (frames_ctx->format != avctx->pix_fmt) {
920  av_log(avctx, AV_LOG_ERROR,
921  "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
922  ret = AVERROR(EINVAL);
923  goto free_and_end;
924  }
925  if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
926  avctx->sw_pix_fmt != frames_ctx->sw_format) {
927  av_log(avctx, AV_LOG_ERROR,
928  "Mismatching AVCodecContext.sw_pix_fmt (%s) "
929  "and AVHWFramesContext.sw_format (%s)\n",
931  av_get_pix_fmt_name(frames_ctx->sw_format));
932  ret = AVERROR(EINVAL);
933  goto free_and_end;
934  }
935  avctx->sw_pix_fmt = frames_ctx->sw_format;
936  }
937  }
938 
941  avctx->pts_correction_last_pts =
942  avctx->pts_correction_last_dts = INT64_MIN;
943 
944  if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
946  av_log(avctx, AV_LOG_WARNING,
947  "gray decoding requested but not enabled at configuration time\n");
948 
949  if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
950  || avctx->internal->frame_thread_encoder)) {
951  ret = avctx->codec->init(avctx);
952  if (ret < 0) {
953  goto free_and_end;
954  }
955  codec_init_ok = 1;
956  }
957 
958  ret=0;
959 
960  if (av_codec_is_decoder(avctx->codec)) {
961  if (!avctx->bit_rate)
962  avctx->bit_rate = get_bit_rate(avctx);
963  /* validate channel layout from the decoder */
964  if (avctx->channel_layout) {
966  if (!avctx->channels)
967  avctx->channels = channels;
968  else if (channels != avctx->channels) {
969  char buf[512];
970  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
971  av_log(avctx, AV_LOG_WARNING,
972  "Channel layout '%s' with %d channels does not match specified number of channels %d: "
973  "ignoring specified channel layout\n",
974  buf, channels, avctx->channels);
975  avctx->channel_layout = 0;
976  }
977  }
978  if (avctx->channels && avctx->channels < 0 ||
979  avctx->channels > FF_SANE_NB_CHANNELS) {
980  ret = AVERROR(EINVAL);
981  goto free_and_end;
982  }
983  if (avctx->bits_per_coded_sample < 0) {
984  ret = AVERROR(EINVAL);
985  goto free_and_end;
986  }
987  if (avctx->sub_charenc) {
988  if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
989  av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
990  "supported with subtitles codecs\n");
991  ret = AVERROR(EINVAL);
992  goto free_and_end;
993  } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
994  av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
995  "subtitles character encoding will be ignored\n",
996  avctx->codec_descriptor->name);
998  } else {
999  /* input character encoding is set for a text based subtitle
1000  * codec at this point */
1003 
1005 #if CONFIG_ICONV
1006  iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
1007  if (cd == (iconv_t)-1) {
1008  ret = AVERROR(errno);
1009  av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
1010  "with input character encoding \"%s\"\n", avctx->sub_charenc);
1011  goto free_and_end;
1012  }
1013  iconv_close(cd);
1014 #else
1015  av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
1016  "conversion needs a libavcodec built with iconv support "
1017  "for this codec\n");
1018  ret = AVERROR(ENOSYS);
1019  goto free_and_end;
1020 #endif
1021  }
1022  }
1023  }
1024 
1025 #if FF_API_AVCTX_TIMEBASE
1026  if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1027  avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1028 #endif
1029  }
1030  if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1031  av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1032  }
1033 
1034 end:
1035  ff_unlock_avcodec(codec);
1036  if (options) {
1037  av_dict_free(options);
1038  *options = tmp;
1039  }
1040 
1041  return ret;
1042 free_and_end:
1043  if (avctx->codec && avctx->codec->close &&
1044  (codec_init_ok ||
1046  avctx->codec->close(avctx);
1047 
1048  if (HAVE_THREADS && avctx->internal->thread_ctx)
1049  ff_thread_free(avctx);
1050 
1051  if (codec->priv_class && codec->priv_data_size)
1052  av_opt_free(avctx->priv_data);
1053  av_opt_free(avctx);
1054 
1055 #if FF_API_CODED_FRAME
1057  av_frame_free(&avctx->coded_frame);
1059 #endif
1060 
1061  av_dict_free(&tmp);
1062  av_freep(&avctx->priv_data);
1063  av_freep(&avctx->subtitle_header);
1064  if (avctx->internal) {
1065  av_frame_free(&avctx->internal->to_free);
1070 
1071  av_packet_free(&avctx->internal->ds.in_pkt);
1072  ff_decode_bsfs_uninit(avctx);
1073 
1074  av_freep(&avctx->internal->pool);
1075  }
1076  av_freep(&avctx->internal);
1077  avctx->codec = NULL;
1078  goto end;
1079 }
1080 
1082 {
1083  int i;
1084 
1085  for (i = 0; i < sub->num_rects; i++) {
1086  av_freep(&sub->rects[i]->data[0]);
1087  av_freep(&sub->rects[i]->data[1]);
1088  av_freep(&sub->rects[i]->data[2]);
1089  av_freep(&sub->rects[i]->data[3]);
1090  av_freep(&sub->rects[i]->text);
1091  av_freep(&sub->rects[i]->ass);
1092  av_freep(&sub->rects[i]);
1093  }
1094 
1095  av_freep(&sub->rects);
1096 
1097  memset(sub, 0, sizeof(*sub));
1098 }
1099 
1101 {
1102  int i;
1103 
1104  if (!avctx)
1105  return 0;
1106 
1107  if (avcodec_is_open(avctx)) {
1108  FramePool *pool = avctx->internal->pool;
1109  if (CONFIG_FRAME_THREAD_ENCODER &&
1110  avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1112  }
1113  if (HAVE_THREADS && avctx->internal->thread_ctx)
1114  ff_thread_free(avctx);
1115  if (avctx->codec && avctx->codec->close)
1116  avctx->codec->close(avctx);
1117  avctx->internal->byte_buffer_size = 0;
1118  av_freep(&avctx->internal->byte_buffer);
1119  av_frame_free(&avctx->internal->to_free);
1124 
1125  av_packet_free(&avctx->internal->ds.in_pkt);
1126 
1127  for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
1128  av_buffer_pool_uninit(&pool->pools[i]);
1129  av_freep(&avctx->internal->pool);
1130 
1131  if (avctx->hwaccel && avctx->hwaccel->uninit)
1132  avctx->hwaccel->uninit(avctx);
1134 
1135  ff_decode_bsfs_uninit(avctx);
1136 
1137  av_freep(&avctx->internal);
1138  }
1139 
1140  for (i = 0; i < avctx->nb_coded_side_data; i++)
1141  av_freep(&avctx->coded_side_data[i].data);
1142  av_freep(&avctx->coded_side_data);
1143  avctx->nb_coded_side_data = 0;
1144 
1145  av_buffer_unref(&avctx->hw_frames_ctx);
1146  av_buffer_unref(&avctx->hw_device_ctx);
1147 
1148  if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1149  av_opt_free(avctx->priv_data);
1150  av_opt_free(avctx);
1151  av_freep(&avctx->priv_data);
1152  if (av_codec_is_encoder(avctx->codec)) {
1153  av_freep(&avctx->extradata);
1154 #if FF_API_CODED_FRAME
1156  av_frame_free(&avctx->coded_frame);
1158 #endif
1159  }
1160  avctx->codec = NULL;
1161  avctx->active_thread_type = 0;
1162 
1163  return 0;
1164 }
1165 
1166 const char *avcodec_get_name(enum AVCodecID id)
1167 {
1168  const AVCodecDescriptor *cd;
1169  AVCodec *codec;
1170 
1171  if (id == AV_CODEC_ID_NONE)
1172  return "none";
1173  cd = avcodec_descriptor_get(id);
1174  if (cd)
1175  return cd->name;
1176  av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1177  codec = avcodec_find_decoder(id);
1178  if (codec)
1179  return codec->name;
1180  codec = avcodec_find_encoder(id);
1181  if (codec)
1182  return codec->name;
1183  return "unknown_codec";
1184 }
1185 
1186 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1187 {
1188  int i, len, ret = 0;
1189 
1190 #define TAG_PRINT(x) \
1191  (((x) >= '0' && (x) <= '9') || \
1192  ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1193  ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
1194 
1195  for (i = 0; i < 4; i++) {
1196  len = snprintf(buf, buf_size,
1197  TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1198  buf += len;
1199  buf_size = buf_size > len ? buf_size - len : 0;
1200  ret += len;
1201  codec_tag >>= 8;
1202  }
1203  return ret;
1204 }
1205 
1206 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1207 {
1208  const char *codec_type;
1209  const char *codec_name;
1210  const char *profile = NULL;
1211  int64_t bitrate;
1212  int new_line = 0;
1213  AVRational display_aspect_ratio;
1214  const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1215 
1216  if (!buf || buf_size <= 0)
1217  return;
1218  codec_type = av_get_media_type_string(enc->codec_type);
1219  codec_name = avcodec_get_name(enc->codec_id);
1220  profile = avcodec_profile_name(enc->codec_id, enc->profile);
1221 
1222  snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1223  codec_name);
1224  buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1225 
1226  if (enc->codec && strcmp(enc->codec->name, codec_name))
1227  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1228 
1229  if (profile)
1230  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1231  if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1233  && enc->refs)
1234  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1235  ", %d reference frame%s",
1236  enc->refs, enc->refs > 1 ? "s" : "");
1237 
1238  if (enc->codec_tag)
1239  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1240  av_fourcc2str(enc->codec_tag), enc->codec_tag);
1241 
1242  switch (enc->codec_type) {
1243  case AVMEDIA_TYPE_VIDEO:
1244  {
1245  char detail[256] = "(";
1246 
1247  av_strlcat(buf, separator, buf_size);
1248 
1249  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1250  "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1252  if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1254  av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1256  av_strlcatf(detail, sizeof(detail), "%s, ",
1258 
1259  if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1261  enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1262  if (enc->colorspace != (int)enc->color_primaries ||
1263  enc->colorspace != (int)enc->color_trc) {
1264  new_line = 1;
1265  av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1269  } else
1270  av_strlcatf(detail, sizeof(detail), "%s, ",
1272  }
1273 
1274  if (enc->field_order != AV_FIELD_UNKNOWN) {
1275  const char *field_order = "progressive";
1276  if (enc->field_order == AV_FIELD_TT)
1277  field_order = "top first";
1278  else if (enc->field_order == AV_FIELD_BB)
1279  field_order = "bottom first";
1280  else if (enc->field_order == AV_FIELD_TB)
1281  field_order = "top coded first (swapped)";
1282  else if (enc->field_order == AV_FIELD_BT)
1283  field_order = "bottom coded first (swapped)";
1284 
1285  av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1286  }
1287 
1288  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1290  av_strlcatf(detail, sizeof(detail), "%s, ",
1292 
1293  if (strlen(detail) > 1) {
1294  detail[strlen(detail) - 2] = 0;
1295  av_strlcatf(buf, buf_size, "%s)", detail);
1296  }
1297  }
1298 
1299  if (enc->width) {
1300  av_strlcat(buf, new_line ? separator : ", ", buf_size);
1301 
1302  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1303  "%dx%d",
1304  enc->width, enc->height);
1305 
1306  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1307  (enc->width != enc->coded_width ||
1308  enc->height != enc->coded_height))
1309  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1310  " (%dx%d)", enc->coded_width, enc->coded_height);
1311 
1312  if (enc->sample_aspect_ratio.num) {
1313  av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1314  enc->width * (int64_t)enc->sample_aspect_ratio.num,
1315  enc->height * (int64_t)enc->sample_aspect_ratio.den,
1316  1024 * 1024);
1317  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1318  " [SAR %d:%d DAR %d:%d]",
1320  display_aspect_ratio.num, display_aspect_ratio.den);
1321  }
1322  if (av_log_get_level() >= AV_LOG_DEBUG) {
1323  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1324  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1325  ", %d/%d",
1326  enc->time_base.num / g, enc->time_base.den / g);
1327  }
1328  }
1329  if (encode) {
1330  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1331  ", q=%d-%d", enc->qmin, enc->qmax);
1332  } else {
1334  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1335  ", Closed Captions");
1337  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1338  ", lossless");
1339  }
1340  break;
1341  case AVMEDIA_TYPE_AUDIO:
1342  av_strlcat(buf, separator, buf_size);
1343 
1344  if (enc->sample_rate) {
1345  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1346  "%d Hz, ", enc->sample_rate);
1347  }
1348  av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1349  if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1350  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1351  ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1352  }
1353  if ( enc->bits_per_raw_sample > 0
1355  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1356  " (%d bit)", enc->bits_per_raw_sample);
1357  if (av_log_get_level() >= AV_LOG_VERBOSE) {
1358  if (enc->initial_padding)
1359  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1360  ", delay %d", enc->initial_padding);
1361  if (enc->trailing_padding)
1362  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1363  ", padding %d", enc->trailing_padding);
1364  }
1365  break;
1366  case AVMEDIA_TYPE_DATA:
1367  if (av_log_get_level() >= AV_LOG_DEBUG) {
1368  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1369  if (g)
1370  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1371  ", %d/%d",
1372  enc->time_base.num / g, enc->time_base.den / g);
1373  }
1374  break;
1375  case AVMEDIA_TYPE_SUBTITLE:
1376  if (enc->width)
1377  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1378  ", %dx%d", enc->width, enc->height);
1379  break;
1380  default:
1381  return;
1382  }
1383  if (encode) {
1384  if (enc->flags & AV_CODEC_FLAG_PASS1)
1385  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1386  ", pass 1");
1387  if (enc->flags & AV_CODEC_FLAG_PASS2)
1388  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1389  ", pass 2");
1390  }
1391  bitrate = get_bit_rate(enc);
1392  if (bitrate != 0) {
1393  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1394  ", %"PRId64" kb/s", bitrate / 1000);
1395  } else if (enc->rc_max_rate > 0) {
1396  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1397  ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1398  }
1399 }
1400 
1401 const char *av_get_profile_name(const AVCodec *codec, int profile)
1402 {
1403  const AVProfile *p;
1404  if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1405  return NULL;
1406 
1407  for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1408  if (p->profile == profile)
1409  return p->name;
1410 
1411  return NULL;
1412 }
1413 
1415 {
1416  const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1417  const AVProfile *p;
1418 
1419  if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1420  return NULL;
1421 
1422  for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1423  if (p->profile == profile)
1424  return p->name;
1425 
1426  return NULL;
1427 }
1428 
1429 unsigned avcodec_version(void)
1430 {
1433  av_assert0(AV_CODEC_ID_SRT==94216);
1435 
1436  return LIBAVCODEC_VERSION_INT;
1437 }
1438 
1439 const char *avcodec_configuration(void)
1440 {
1441  return FFMPEG_CONFIGURATION;
1442 }
1443 
1444 const char *avcodec_license(void)
1445 {
1446 #define LICENSE_PREFIX "libavcodec license: "
1447  return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
1448 }
1449 
1451 {
1452  switch (codec_id) {
1453  case AV_CODEC_ID_8SVX_EXP:
1454  case AV_CODEC_ID_8SVX_FIB:
1455  case AV_CODEC_ID_ADPCM_CT:
1463  return 4;
1464  case AV_CODEC_ID_DSD_LSBF:
1465  case AV_CODEC_ID_DSD_MSBF:
1468  case AV_CODEC_ID_PCM_ALAW:
1469  case AV_CODEC_ID_PCM_MULAW:
1470  case AV_CODEC_ID_PCM_VIDC:
1471  case AV_CODEC_ID_PCM_S8:
1473  case AV_CODEC_ID_PCM_U8:
1474  case AV_CODEC_ID_PCM_ZORK:
1475  case AV_CODEC_ID_SDX2_DPCM:
1476  return 8;
1477  case AV_CODEC_ID_PCM_S16BE:
1479  case AV_CODEC_ID_PCM_S16LE:
1481  case AV_CODEC_ID_PCM_U16BE:
1482  case AV_CODEC_ID_PCM_U16LE:
1483  return 16;
1485  case AV_CODEC_ID_PCM_S24BE:
1486  case AV_CODEC_ID_PCM_S24LE:
1488  case AV_CODEC_ID_PCM_U24BE:
1489  case AV_CODEC_ID_PCM_U24LE:
1490  return 24;
1491  case AV_CODEC_ID_PCM_S32BE:
1492  case AV_CODEC_ID_PCM_S32LE:
1494  case AV_CODEC_ID_PCM_U32BE:
1495  case AV_CODEC_ID_PCM_U32LE:
1496  case AV_CODEC_ID_PCM_F32BE:
1497  case AV_CODEC_ID_PCM_F32LE:
1498  case AV_CODEC_ID_PCM_F24LE:
1499  case AV_CODEC_ID_PCM_F16LE:
1500  return 32;
1501  case AV_CODEC_ID_PCM_F64BE:
1502  case AV_CODEC_ID_PCM_F64LE:
1503  case AV_CODEC_ID_PCM_S64BE:
1504  case AV_CODEC_ID_PCM_S64LE:
1505  return 64;
1506  default:
1507  return 0;
1508  }
1509 }
1510 
1512 {
1513  static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
1519  [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1520  [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1521  [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1523  [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1524  [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1525  };
1526  if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
1527  return AV_CODEC_ID_NONE;
1528  if (be < 0 || be > 1)
1529  be = AV_NE(1, 0);
1530  return map[fmt][be];
1531 }
1532 
1534 {
1535  switch (codec_id) {
1537  return 2;
1539  return 3;
1543  case AV_CODEC_ID_ADPCM_SWF:
1544  case AV_CODEC_ID_ADPCM_MS:
1545  return 4;
1546  default:
1547  return av_get_exact_bits_per_sample(codec_id);
1548  }
1549 }
1550 
1551 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1552  uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1553  uint8_t * extradata, int frame_size, int frame_bytes)
1554 {
1556  int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1557 
1558  /* codecs with an exact constant bits per sample */
1559  if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1560  return (frame_bytes * 8LL) / (bps * ch);
1561  bps = bits_per_coded_sample;
1562 
1563  /* codecs with a fixed packet duration */
1564  switch (id) {
1565  case AV_CODEC_ID_ADPCM_ADX: return 32;
1566  case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1567  case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1568  case AV_CODEC_ID_AMR_NB:
1569  case AV_CODEC_ID_EVRC:
1570  case AV_CODEC_ID_GSM:
1571  case AV_CODEC_ID_QCELP:
1572  case AV_CODEC_ID_RA_288: return 160;
1573  case AV_CODEC_ID_AMR_WB:
1574  case AV_CODEC_ID_GSM_MS: return 320;
1575  case AV_CODEC_ID_MP1: return 384;
1576  case AV_CODEC_ID_ATRAC1: return 512;
1577  case AV_CODEC_ID_ATRAC9:
1578  case AV_CODEC_ID_ATRAC3: return 1024 * framecount;
1579  case AV_CODEC_ID_ATRAC3P: return 2048;
1580  case AV_CODEC_ID_MP2:
1581  case AV_CODEC_ID_MUSEPACK7: return 1152;
1582  case AV_CODEC_ID_AC3: return 1536;
1583  }
1584 
1585  if (sr > 0) {
1586  /* calc from sample rate */
1587  if (id == AV_CODEC_ID_TTA)
1588  return 256 * sr / 245;
1589  else if (id == AV_CODEC_ID_DST)
1590  return 588 * sr / 44100;
1591 
1592  if (ch > 0) {
1593  /* calc from sample rate and channels */
1594  if (id == AV_CODEC_ID_BINKAUDIO_DCT)
1595  return (480 << (sr / 22050)) / ch;
1596  }
1597 
1598  if (id == AV_CODEC_ID_MP3)
1599  return sr <= 24000 ? 576 : 1152;
1600  }
1601 
1602  if (ba > 0) {
1603  /* calc from block_align */
1604  if (id == AV_CODEC_ID_SIPR) {
1605  switch (ba) {
1606  case 20: return 160;
1607  case 19: return 144;
1608  case 29: return 288;
1609  case 37: return 480;
1610  }
1611  } else if (id == AV_CODEC_ID_ILBC) {
1612  switch (ba) {
1613  case 38: return 160;
1614  case 50: return 240;
1615  }
1616  }
1617  }
1618 
1619  if (frame_bytes > 0) {
1620  /* calc from frame_bytes only */
1621  if (id == AV_CODEC_ID_TRUESPEECH)
1622  return 240 * (frame_bytes / 32);
1623  if (id == AV_CODEC_ID_NELLYMOSER)
1624  return 256 * (frame_bytes / 64);
1625  if (id == AV_CODEC_ID_RA_144)
1626  return 160 * (frame_bytes / 20);
1627 
1628  if (bps > 0) {
1629  /* calc from frame_bytes and bits_per_coded_sample */
1631  return frame_bytes * 8 / bps;
1632  }
1633 
1634  if (ch > 0 && ch < INT_MAX/16) {
1635  /* calc from frame_bytes and channels */
1636  switch (id) {
1637  case AV_CODEC_ID_ADPCM_AFC:
1638  return frame_bytes / (9 * ch) * 16;
1639  case AV_CODEC_ID_ADPCM_PSX:
1640  case AV_CODEC_ID_ADPCM_DTK:
1641  return frame_bytes / (16 * ch) * 28;
1642  case AV_CODEC_ID_ADPCM_4XM:
1645  return (frame_bytes - 4 * ch) * 2 / ch;
1647  return (frame_bytes - 4) * 2 / ch;
1649  return (frame_bytes - 8) * 2 / ch;
1650  case AV_CODEC_ID_ADPCM_THP:
1652  if (extradata)
1653  return frame_bytes * 14 / (8 * ch);
1654  break;
1655  case AV_CODEC_ID_ADPCM_XA:
1656  return (frame_bytes / 128) * 224 / ch;
1658  return (frame_bytes - 6 - ch) / ch;
1659  case AV_CODEC_ID_ROQ_DPCM:
1660  return (frame_bytes - 8) / ch;
1661  case AV_CODEC_ID_XAN_DPCM:
1662  return (frame_bytes - 2 * ch) / ch;
1663  case AV_CODEC_ID_MACE3:
1664  return 3 * frame_bytes / ch;
1665  case AV_CODEC_ID_MACE6:
1666  return 6 * frame_bytes / ch;
1667  case AV_CODEC_ID_PCM_LXF:
1668  return 2 * (frame_bytes / (5 * ch));
1669  case AV_CODEC_ID_IAC:
1670  case AV_CODEC_ID_IMC:
1671  return 4 * frame_bytes / ch;
1672  }
1673 
1674  if (tag) {
1675  /* calc from frame_bytes, channels, and codec_tag */
1676  if (id == AV_CODEC_ID_SOL_DPCM) {
1677  if (tag == 3)
1678  return frame_bytes / ch;
1679  else
1680  return frame_bytes * 2 / ch;
1681  }
1682  }
1683 
1684  if (ba > 0) {
1685  /* calc from frame_bytes, channels, and block_align */
1686  int blocks = frame_bytes / ba;
1687  switch (id) {
1689  if (bps < 2 || bps > 5)
1690  return 0;
1691  return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1693  return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1695  return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1697  return blocks * ((ba - 4 * ch) * 2 / ch);
1698  case AV_CODEC_ID_ADPCM_MS:
1699  return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1701  return blocks * (ba - 16) * 2 / ch;
1702  }
1703  }
1704 
1705  if (bps > 0) {
1706  /* calc from frame_bytes, channels, and bits_per_coded_sample */
1707  switch (id) {
1708  case AV_CODEC_ID_PCM_DVD:
1709  if(bps<4 || frame_bytes<3)
1710  return 0;
1711  return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1713  if(bps<4 || frame_bytes<4)
1714  return 0;
1715  return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1716  case AV_CODEC_ID_S302M:
1717  return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1718  }
1719  }
1720  }
1721  }
1722 
1723  /* Fall back on using frame_size */
1724  if (frame_size > 1 && frame_bytes)
1725  return frame_size;
1726 
1727  //For WMA we currently have no other means to calculate duration thus we
1728  //do it here by assuming CBR, which is true for all known cases.
1729  if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1730  if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1731  return (frame_bytes * 8LL * sr) / bitrate;
1732  }
1733 
1734  return 0;
1735 }
1736 
1737 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1738 {
1739  return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1740  avctx->channels, avctx->block_align,
1741  avctx->codec_tag, avctx->bits_per_coded_sample,
1742  avctx->bit_rate, avctx->extradata, avctx->frame_size,
1743  frame_bytes);
1744 }
1745 
1747 {
1748  return get_audio_frame_duration(par->codec_id, par->sample_rate,
1749  par->channels, par->block_align,
1750  par->codec_tag, par->bits_per_coded_sample,
1751  par->bit_rate, par->extradata, par->frame_size,
1752  frame_bytes);
1753 }
1754 
1755 #if !HAVE_THREADS
1757 {
1758  return -1;
1759 }
1760 
1761 #endif
1762 
1763 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1764 {
1765  unsigned int n = 0;
1766 
1767  while (v >= 0xff) {
1768  *s++ = 0xff;
1769  v -= 0xff;
1770  n++;
1771  }
1772  *s = v;
1773  n++;
1774  return n;
1775 }
1776 
1777 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1778 {
1779  int i;
1780  for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1781  return i;
1782 }
1783 
1785 {
1786  int i;
1787  if (!codec->hw_configs || index < 0)
1788  return NULL;
1789  for (i = 0; i <= index; i++)
1790  if (!codec->hw_configs[i])
1791  return NULL;
1792  return &codec->hw_configs[index]->public;
1793 }
1794 
1795 #if FF_API_USER_VISIBLE_AVHWACCEL
1797 {
1798  return NULL;
1799 }
1800 
1802 {
1803 }
1804 #endif
1805 
1806 #if FF_API_LOCKMGR
1807 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1808 {
1809  return 0;
1810 }
1811 #endif
1812 
1813 unsigned int avpriv_toupper4(unsigned int x)
1814 {
1815  return av_toupper(x & 0xFF) +
1816  (av_toupper((x >> 8) & 0xFF) << 8) +
1817  (av_toupper((x >> 16) & 0xFF) << 16) +
1818 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1819 }
1820 
1822 {
1823  int ret;
1824 
1825  dst->owner[0] = src->owner[0];
1826  dst->owner[1] = src->owner[1];
1827 
1828  ret = av_frame_ref(dst->f, src->f);
1829  if (ret < 0)
1830  return ret;
1831 
1832  av_assert0(!dst->progress);
1833 
1834  if (src->progress &&
1835  !(dst->progress = av_buffer_ref(src->progress))) {
1836  ff_thread_release_buffer(dst->owner[0], dst);
1837  return AVERROR(ENOMEM);
1838  }
1839 
1840  return 0;
1841 }
1842 
1843 #if !HAVE_THREADS
1844 
1846 {
1847  return ff_get_format(avctx, fmt);
1848 }
1849 
1851 {
1852  f->owner[0] = f->owner[1] = avctx;
1853  return ff_get_buffer(avctx, f->f, flags);
1854 }
1855 
1857 {
1858  if (f->f)
1859  av_frame_unref(f->f);
1860 }
1861 
1863 {
1864 }
1865 
1867 {
1868 }
1869 
1870 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1871 {
1872 }
1873 
1875 {
1876  return 1;
1877 }
1878 
1880 {
1881  return 0;
1882 }
1883 
1885 {
1886 }
1887 
1888 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1889 {
1890 }
1891 
1892 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
1893 {
1894 }
1895 
1896 #endif
1897 
1899 {
1900  return !!s->internal;
1901 }
1902 
1903 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
1904 {
1905  int ret;
1906  char *str;
1907 
1908  ret = av_bprint_finalize(buf, &str);
1909  if (ret < 0)
1910  return ret;
1911  if (!av_bprint_is_complete(buf)) {
1912  av_free(str);
1913  return AVERROR(ENOMEM);
1914  }
1915 
1916  avctx->extradata = str;
1917  /* Note: the string is NUL terminated (so extradata can be read as a
1918  * string), but the ending character is not accounted in the size (in
1919  * binary formats you are likely not supposed to mux that character). When
1920  * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
1921  * zeros. */
1922  avctx->extradata_size = buf->len;
1923  return 0;
1924 }
1925 
1926 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
1927  const uint8_t *end,
1928  uint32_t *av_restrict state)
1929 {
1930  int i;
1931 
1932  av_assert0(p <= end);
1933  if (p >= end)
1934  return end;
1935 
1936  for (i = 0; i < 3; i++) {
1937  uint32_t tmp = *state << 8;
1938  *state = tmp + *(p++);
1939  if (tmp == 0x100 || p == end)
1940  return p;
1941  }
1942 
1943  while (p < end) {
1944  if (p[-1] > 1 ) p += 3;
1945  else if (p[-2] ) p += 2;
1946  else if (p[-3]|(p[-1]-1)) p++;
1947  else {
1948  p++;
1949  break;
1950  }
1951  }
1952 
1953  p = FFMIN(p, end) - 4;
1954  *state = AV_RB32(p);
1955 
1956  return p + 4;
1957 }
1958 
1960 {
1961  AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
1962  if (!props)
1963  return NULL;
1964 
1965  if (size)
1966  *size = sizeof(*props);
1967 
1968  props->vbv_delay = UINT64_MAX;
1969 
1970  return props;
1971 }
1972 
1974 {
1976  AVCPBProperties *props;
1977  size_t size;
1978 
1979  props = av_cpb_properties_alloc(&size);
1980  if (!props)
1981  return NULL;
1982 
1983  tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
1984  if (!tmp) {
1985  av_freep(&props);
1986  return NULL;
1987  }
1988 
1989  avctx->coded_side_data = tmp;
1990  avctx->nb_coded_side_data++;
1991 
1993  avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
1994  avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
1995 
1996  return props;
1997 }
1998 
2000 {
2001  av_freep(&par->extradata);
2002 
2003  memset(par, 0, sizeof(*par));
2004 
2006  par->codec_id = AV_CODEC_ID_NONE;
2007  par->format = -1;
2014  par->sample_aspect_ratio = (AVRational){ 0, 1 };
2015  par->profile = FF_PROFILE_UNKNOWN;
2016  par->level = FF_LEVEL_UNKNOWN;
2017 }
2018 
2020 {
2021  AVCodecParameters *par = av_mallocz(sizeof(*par));
2022 
2023  if (!par)
2024  return NULL;
2026  return par;
2027 }
2028 
2030 {
2031  AVCodecParameters *par = *ppar;
2032 
2033  if (!par)
2034  return;
2036 
2037  av_freep(ppar);
2038 }
2039 
2041 {
2043  memcpy(dst, src, sizeof(*dst));
2044 
2045  dst->extradata = NULL;
2046  dst->extradata_size = 0;
2047  if (src->extradata) {
2049  if (!dst->extradata)
2050  return AVERROR(ENOMEM);
2051  memcpy(dst->extradata, src->extradata, src->extradata_size);
2052  dst->extradata_size = src->extradata_size;
2053  }
2054 
2055  return 0;
2056 }
2057 
2059  const AVCodecContext *codec)
2060 {
2062 
2063  par->codec_type = codec->codec_type;
2064  par->codec_id = codec->codec_id;
2065  par->codec_tag = codec->codec_tag;
2066 
2067  par->bit_rate = codec->bit_rate;
2070  par->profile = codec->profile;
2071  par->level = codec->level;
2072 
2073  switch (par->codec_type) {
2074  case AVMEDIA_TYPE_VIDEO:
2075  par->format = codec->pix_fmt;
2076  par->width = codec->width;
2077  par->height = codec->height;
2078  par->field_order = codec->field_order;
2079  par->color_range = codec->color_range;
2080  par->color_primaries = codec->color_primaries;
2081  par->color_trc = codec->color_trc;
2082  par->color_space = codec->colorspace;
2085  par->video_delay = codec->has_b_frames;
2086  break;
2087  case AVMEDIA_TYPE_AUDIO:
2088  par->format = codec->sample_fmt;
2089  par->channel_layout = codec->channel_layout;
2090  par->channels = codec->channels;
2091  par->sample_rate = codec->sample_rate;
2092  par->block_align = codec->block_align;
2093  par->frame_size = codec->frame_size;
2094  par->initial_padding = codec->initial_padding;
2095  par->trailing_padding = codec->trailing_padding;
2096  par->seek_preroll = codec->seek_preroll;
2097  break;
2098  case AVMEDIA_TYPE_SUBTITLE:
2099  par->width = codec->width;
2100  par->height = codec->height;
2101  break;
2102  }
2103 
2104  if (codec->extradata) {
2106  if (!par->extradata)
2107  return AVERROR(ENOMEM);
2108  memcpy(par->extradata, codec->extradata, codec->extradata_size);
2109  par->extradata_size = codec->extradata_size;
2110  }
2111 
2112  return 0;
2113 }
2114 
2116  const AVCodecParameters *par)
2117 {
2118  codec->codec_type = par->codec_type;
2119  codec->codec_id = par->codec_id;
2120  codec->codec_tag = par->codec_tag;
2121 
2122  codec->bit_rate = par->bit_rate;
2125  codec->profile = par->profile;
2126  codec->level = par->level;
2127 
2128  switch (par->codec_type) {
2129  case AVMEDIA_TYPE_VIDEO:
2130  codec->pix_fmt = par->format;
2131  codec->width = par->width;
2132  codec->height = par->height;
2133  codec->field_order = par->field_order;
2134  codec->color_range = par->color_range;
2135  codec->color_primaries = par->color_primaries;
2136  codec->color_trc = par->color_trc;
2137  codec->colorspace = par->color_space;
2140  codec->has_b_frames = par->video_delay;
2141  break;
2142  case AVMEDIA_TYPE_AUDIO:
2143  codec->sample_fmt = par->format;
2144  codec->channel_layout = par->channel_layout;
2145  codec->channels = par->channels;
2146  codec->sample_rate = par->sample_rate;
2147  codec->block_align = par->block_align;
2148  codec->frame_size = par->frame_size;
2149  codec->delay =
2150  codec->initial_padding = par->initial_padding;
2151  codec->trailing_padding = par->trailing_padding;
2152  codec->seek_preroll = par->seek_preroll;
2153  break;
2154  case AVMEDIA_TYPE_SUBTITLE:
2155  codec->width = par->width;
2156  codec->height = par->height;
2157  break;
2158  }
2159 
2160  if (par->extradata) {
2161  av_freep(&codec->extradata);
2163  if (!codec->extradata)
2164  return AVERROR(ENOMEM);
2165  memcpy(codec->extradata, par->extradata, par->extradata_size);
2166  codec->extradata_size = par->extradata_size;
2167  }
2168 
2169  return 0;
2170 }
2171 
2172 int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
2173  void **data, size_t *sei_size)
2174 {
2175  AVFrameSideData *side_data = NULL;
2176  uint8_t *sei_data;
2177 
2178  if (frame)
2179  side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
2180 
2181  if (!side_data) {
2182  *data = NULL;
2183  return 0;
2184  }
2185 
2186  *sei_size = side_data->size + 11;
2187  *data = av_mallocz(*sei_size + prefix_len);
2188  if (!*data)
2189  return AVERROR(ENOMEM);
2190  sei_data = (uint8_t*)*data + prefix_len;
2191 
2192  // country code
2193  sei_data[0] = 181;
2194  sei_data[1] = 0;
2195  sei_data[2] = 49;
2196 
2197  /**
2198  * 'GA94' is standard in North America for ATSC, but hard coding
2199  * this style may not be the right thing to do -- other formats
2200  * do exist. This information is not available in the side_data
2201  * so we are going with this right now.
2202  */
2203  AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
2204  sei_data[7] = 3;
2205  sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
2206  sei_data[9] = 0;
2207 
2208  memcpy(sei_data + 10, side_data->data, side_data->size);
2209 
2210  sei_data[side_data->size+10] = 255;
2211 
2212  return 0;
2213 }
2214 
2216 {
2217  AVRational framerate = avctx->framerate;
2218  int bits_per_coded_sample = avctx->bits_per_coded_sample;
2219  int64_t bitrate;
2220 
2221  if (!(framerate.num && framerate.den))
2222  framerate = av_inv_q(avctx->time_base);
2223  if (!(framerate.num && framerate.den))
2224  return 0;
2225 
2226  if (!bits_per_coded_sample) {
2228  bits_per_coded_sample = av_get_bits_per_pixel(desc);
2229  }
2230  bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2231  framerate.num / framerate.den;
2232 
2233  return bitrate;
2234 }
2235 
2236 int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
2237  const int * array_valid_values, int default_value)
2238 {
2239  int i = 0, ref_val;
2240 
2241  while (1) {
2242  ref_val = array_valid_values[i];
2243  if (ref_val == INT_MAX)
2244  break;
2245  if (val == ref_val)
2246  return val;
2247  i++;
2248  }
2249  /* val is not a valid value */
2250  av_log(ctx, AV_LOG_DEBUG,
2251  "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
2252  return default_value;
2253 }
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:2215
#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:2638
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:4060
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:3168
#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:1579
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:3110
const char const char void * val
Definition: avisynth_c.h:863
enum AVFieldOrder field_order
Video only.
Definition: avcodec.h:4051
static int64_t get_bit_rate(AVCodecContext *ctx)
Definition: utils.c:500
const AVCodecDescriptor * codec_descriptor
AVCodecDescriptor.
Definition: avcodec.h:3131
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:4058
Number of sample formats. DO NOT USE if linking dynamically.
Definition: samplefmt.h:74
#define AV_NUM_DATA_POINTERS
Definition: frame.h:296
static int shift(int a, int b)
Definition: sonic.c:82
planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:245
#define FF_SUB_CHARENC_MODE_AUTOMATIC
libavcodec will select the mode itself
Definition: avcodec.h:3167
static AVMutex mutex
Definition: log.c:44
int64_t pts_correction_num_faulty_dts
Number of incorrect PTS values so far.
Definition: avcodec.h:3148
void av_buffer_unref(AVBufferRef **buf)
Free a given reference and automatically free the buffer if there are no more references to it...
Definition: buffer.c:125
unsigned int fourcc
Definition: raw.h:36
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2522
This structure describes decoded (raw) audio or video data.
Definition: frame.h:295
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
Definition: allcodecs.c:893
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:3635
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:1758
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:1620
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:4046
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:2476
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:250
channels
Definition: aptx.c:30
void av_opt_set_defaults(void *s)
Set the values of all AVOption fields to their default values.
Definition: opt.c:1328
const char * avcodec_configuration(void)
Return the libavcodec build-time configuration.
Definition: utils.c:1439
uint32_t fourcc
Definition: vaapi_decode.c:238
enum AVCodecID codec_id
Definition: qsv.c:77
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:2205
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:3970
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:3166
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:1444
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:1949
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:1780
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:3950
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:1034
mpegvideo header.
enum AVMediaType type
Definition: avcodec.h:3507
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:2801
enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
Wrapper around get_format() for frame-multithreaded codecs.
Definition: utils.c:1845
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:1807
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:1054
const struct AVHWAccel * hwaccel
Hardware accelerator in use.
Definition: avcodec.h:2734
int trailing_padding
Audio only.
Definition: avcodec.h:4106
#define src
Definition: vp8dsp.c:254
int profile
profile
Definition: avcodec.h:2903
planar GBR 4:4:4 36bpp, big-endian
Definition: pixfmt.h:254
AVCodec.
Definition: avcodec.h:3494
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:2267
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:3962
AVLockOp
Lock operation used by lockmgr.
Definition: avcodec.h:6144
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:3934
enum AVColorSpace color_space
Definition: avcodec.h:4059
const char * av_color_space_name(enum AVColorSpace space)
Definition: pixdesc.c:2915
Macro definitions for various function/variable attributes.
void ff_decode_bsfs_uninit(AVCodecContext *avctx)
Definition: decode.c:2057
int frame_size
Audio only.
Definition: avcodec.h:4091
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:1693
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:3951
int av_codec_is_decoder(const AVCodec *codec)
Definition: utils.c:99
int(* uninit)(AVCodecContext *avctx)
Uninitialize the hwaccel private data.
Definition: avcodec.h:3800
void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
Definition: utils.c:1888
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:1175
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:3024
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
planar GBRA 4:4:4:4 64bpp, big-endian
Definition: pixfmt.h:216
Public dictionary API.
planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
Definition: pixfmt.h:190
static double cb(void *priv, double x, double y)
Definition: vf_geq.c:139
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
Definition: internal.h:40
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101
void av_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
Definition: avpacket.c:62
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), 12b alpha, little-endian ...
Definition: pixfmt.h:344
enum AVSampleFormat sample_fmt
audio sample format
Definition: avcodec.h:2238
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:4036
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:2019
#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:3289
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:3233
#define LIBAVCODEC_VERSION_INT
Definition: version.h:34
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1671
#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:2115
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:1973
Public header for CRC hash function implementation.
void * frame_thread_encoder
Definition: internal.h:180
int initial_padding
Audio only.
Definition: avcodec.h:4099
Structure to hold side data for an AVFrame.
Definition: frame.h:201
int av_image_check_sar(unsigned int w, unsigned int h, AVRational sar)
Check if the given sample aspect ratio of an image is valid.
Definition: imgutils.c:287
int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Call avcodec_open2 recursively by decrementing counter, unlocking mutex, calling the function and the...
Definition: utils.c:536
planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), big-endian
Definition: pixfmt.h:276
planar GBR 4:4:4 48bpp, big-endian
Definition: pixfmt.h:174
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:100
uint32_t tag
Definition: movenc.c:1531
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:194
void av_memcpy_backptr(uint8_t *dst, int back, int cnt)
Overlapping memcpy() implementation.
Definition: mem.c:426
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
uint8_t * data
Definition: avcodec.h:1426
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:1551
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
Definition: avcodec.h:2809
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:1777
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:2794
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:888
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:1959
enum AVChromaLocation chroma_sample_location
This defines the location of chroma samples.
Definition: avcodec.h:2212
static void codec_parameters_reset(AVCodecParameters *par)
Definition: utils.c:1999
#define FFALIGN(x, a)
Definition: macros.h:48
uint64_t channel_layout
Audio only.
Definition: avcodec.h:4072
#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:3999
#define FF_COMPLIANCE_UNOFFICIAL
Allow unofficial extensions.
Definition: avcodec.h:2637
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:1801
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:1100
enum AVCodecID id
Definition: avcodec.h:3508
const uint64_t * channel_layouts
array of support channel layouts, or NULL if unknown. array is terminated by 0
Definition: avcodec.h:3518
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:2040
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:1860
int av_get_bits_per_sample(enum AVCodecID codec_id)
Return codec bits per sample.
Definition: utils.c:1533
#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:2236
#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:1813
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:3602
int qmax
maximum quantizer
Definition: avcodec.h:2419
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:3149
int active_thread_type
Which multithreading methods are in use by the codec.
Definition: avcodec.h:2848
enum AVColorPrimaries color_primaries
Definition: avcodec.h:4057
int avcodec_is_open(AVCodecContext *s)
Definition: utils.c:1898
int video_delay
Video only.
Definition: avcodec.h:4065
const char * r
Definition: vf_curves.c:114
int av_match_list(const char *name, const char *list, char separator)
Check if a name is in a list.
Definition: avstring.c:447
AVFrame * buffer_frame
Definition: internal.h:202
int capabilities
Codec capabilities.
Definition: avcodec.h:3513
int initial_padding
Audio only.
Definition: avcodec.h:3101
#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:1756
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:3966
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:1650
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:1428
int av_log_get_level(void)
Get the current log level.
Definition: log.c:380
const char * name
Name of the codec implementation.
Definition: avcodec.h:3501
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:3297
const struct AVProfile * profiles
If non-NULL, an array of profiles recognized for this codec.
Definition: avcodec.h:748
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:2029
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:1746
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:3291
uint64_t channel_layout
Audio channel layout.
Definition: avcodec.h:2281
int extradata_size
Size of the extradata content in bytes.
Definition: avcodec.h:3988
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:2433
int props
Codec properties, a combination of AV_CODEC_PROP_* flags.
Definition: avcodec.h:737
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:2158
planar GBR 4:4:4:4 48bpp, big-endian
Definition: pixfmt.h:287
int block_align
Audio only.
Definition: avcodec.h:4087
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:3515
#define FF_THREAD_FRAME
Decode more than one frame at once.
Definition: avcodec.h:2840
#define FFMIN(a, b)
Definition: common.h:96
AVPacketSideData * coded_side_data
Additional data associated with the entire coded stream.
Definition: avcodec.h:3242
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:1450
AVFrame * compat_decode_frame
Definition: internal.h:213
void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
Definition: utils.c:1892
int width
picture width / height.
Definition: avcodec.h:1743
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:3267
#define FF_PROFILE_UNKNOWN
Definition: avcodec.h:2904
int priv_data_size
Definition: avcodec.h:3542
int profile
Definition: avcodec.h:3428
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:876
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:2184
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:3023
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:1862
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:3521
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:1702
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:69
planar YUV 4:2:0,18bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:243
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:158
enum AVColorRange color_range
Video only.
Definition: avcodec.h:4056
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:3157
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:3929
#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:1166
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:2829
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:523
int sub_charenc_mode
Subtitles character encoding mode.
Definition: avcodec.h:3165
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:1401
int frame_size
Number of samples per channel in an audio frame.
Definition: avcodec.h:2250
This structure describes the bitrate properties of an encoded bitstream.
Definition: avcodec.h:1133
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:1796
Libavcodec external API header.
enum AVMediaType codec_type
Definition: avcodec.h:1578
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:1511
enum AVCodecID codec_id
Definition: avcodec.h:1580
int seek_preroll
Number of samples to skip after a discontinuity.
Definition: avcodec.h:3190
int av_opt_set_dict(void *obj, AVDictionary **options)
Set all the options from a given dictionary on an object.
Definition: opt.c:1626
int sample_rate
samples per second
Definition: avcodec.h:2230
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:1784
planar GBR 4:4:4 30bpp, big-endian
Definition: pixfmt.h:172
main external API structure.
Definition: avcodec.h:1570
int(* receive_frame)(AVCodecContext *avctx, AVFrame *frame)
Decode API with decoupled packet/frame dataflow.
Definition: avcodec.h:3610
AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
Definition: allcodecs.c:898
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:2412
void avsubtitle_free(AVSubtitle *sub)
Free all allocated data in the given subtitle struct.
Definition: utils.c:1081
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:1595
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:780
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:1672
int(* close)(AVCodecContext *)
Definition: avcodec.h:3593
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
Encode extradata length to a buffer.
Definition: utils.c:1763
int nb_coded_side_data
Definition: avcodec.h:3243
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:1758
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:3234
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition: pixfmt.h:195
AVFrameSideData * av_frame_new_side_data(AVFrame *frame, enum AVFrameSideDataType type, int size)
Add a new side data to a frame.
Definition: frame.c:722
static av_const int av_toupper(int c)
Locale-independent conversion of ASCII characters to uppercase.
Definition: avstring.h:231
Y , 16bpp, big-endian.
Definition: pixfmt.h:97
int index
Definition: gxfenc.c:89
void av_buffer_pool_uninit(AVBufferPool **ppool)
Mark the pool as being available for freeing.
Definition: buffer.c:275
int av_samples_get_buffer_size(int *linesize, int nb_channels, int nb_samples, enum AVSampleFormat sample_fmt, int align)
Get the required buffer size for the given audio parameters.
Definition: samplefmt.c:119
enum AVColorSpace colorspace
YUV colorspace type.
Definition: avcodec.h:2198
Rational number (pair of numerator and denominator).
Definition: rational.h:58
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:2191
void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
Wrapper around release_buffer() frame-for multithreaded codecs.
Definition: utils.c:1856
const char * name
short name for the profile
Definition: avcodec.h:3429
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:2058
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:3225
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:729
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:1737
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:4110
This struct describes the properties of a single codec described by an AVCodecID. ...
Definition: avcodec.h:721
int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
Finalize buf into extradata and set its size appropriately.
Definition: utils.c:1903
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:553
const char * av_get_media_type_string(enum AVMediaType media_type)
Return a string describing the media_type enum, NULL if media_type is unknown.
Definition: utils.c:76
planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
Definition: pixfmt.h:187
#define flags(name, subs,...)
Definition: cbs_av1.c:561
int bits_per_raw_sample
This is the number of valid bits in each output sample.
Definition: avcodec.h:4025
const AVClass * priv_class
AVClass for the private context.
Definition: avcodec.h:3520
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:4080
enum AVMediaType type
Definition: avcodec.h:723
uint8_t max_lowres
maximum value for lowres supported by the decoder
Definition: avcodec.h:3519
AVPacket * buffer_pkt
buffers for using new encode/decode API through legacy API
Definition: internal.h:200
int64_t bitrate
Definition: h264_levels.c:131
static int op(uint8_t **dst, const uint8_t *dst_end, GetByteContext *gb, int pixel, int count, int *x, int width, int linesize)
Perform decode operation.
Definition: anm.c:78
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:247
Y , 8bpp.
Definition: pixfmt.h:74
void av_opt_free(void *obj)
Free all allocated objects in obj.
Definition: opt.c:1581
const OptionDef options[]
Definition: ffmpeg_opt.c:3374
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:84
int(* decode)(AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt)
Definition: avcodec.h:3592
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:3577
int profile
Codec-specific bitstream restrictions that the stream conforms to.
Definition: avcodec.h:4030
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:3578
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
AVProfile.
Definition: avcodec.h:3427
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:1874
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:2820
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:1866
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:3620
unsigned properties
Properties of the stream that gets decoded.
Definition: avcodec.h:3232
int den
Denominator.
Definition: rational.h:60
int avcodec_default_execute2(AVCodecContext *c, int(*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
Definition: utils.c:454
int av_image_check_size2(unsigned int w, unsigned int h, int64_t max_pixels, enum AVPixelFormat pix_fmt, int log_offset, void *log_ctx)
Check if the given dimension of an image is valid, meaning that all bytes of a plane of an image with...
Definition: imgutils.c:253
unsigned bps
Definition: movenc.c:1532
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition: pixfmt.h:185
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
Definition: avcodec.h:795
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
Definition: utils.c:1206
#define AV_CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:880
static int lowres
Definition: ffplay.c:335
void * priv_data
Definition: avcodec.h:1597
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:1186
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:3217
#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:3590
#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:2231
const int * supported_samplerates
array of supported audio samplerates, or NULL if unknown, array is terminated by 0 ...
Definition: avcodec.h:3516
struct AVCodecInternal * internal
Private context used for internal data.
Definition: avcodec.h:1605
unsigned avcodec_version(void)
Return the LIBAVCODEC_VERSION_INT constant.
Definition: utils.c:1429
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:3941
This side data corresponds to the AVCPBProperties struct.
Definition: avcodec.h:1294
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:4012
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: avcodec.h:3984
static const struct twinvq_data tab
unsigned int byte_buffer_size
Definition: internal.h:178
int channels
Audio only.
Definition: avcodec.h:4076
void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
Wait for earlier decoding threads to finish reference pictures.
Definition: utils.c:1870
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:3150
int frame_number
Frame counter, set by libavcodec.
Definition: avcodec.h:2261
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:3147
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:2227
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:1821
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:3517
AVMatrixEncoding
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
Definition: utils.c:1850
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
Definition: avcodec.h:3974
int ff_alloc_entries(AVCodecContext *avctx, int count)
Definition: utils.c:1879
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:2172
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:1926
void ff_reset_entries(AVCodecContext *avctx)
Definition: utils.c:1884
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:3319
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:1414
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:1726
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:2633
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:3117
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:2448
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:3055
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