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utils.c
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1 /*
2  * utils for libavcodec
3  * Copyright (c) 2001 Fabrice Bellard
4  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 /**
24  * @file
25  * utils.
26  */
27 
28 #include "config.h"
29 #include "libavutil/attributes.h"
30 #include "libavutil/avassert.h"
31 #include "libavutil/avstring.h"
32 #include "libavutil/bprint.h"
34 #include "libavutil/crc.h"
35 #include "libavutil/frame.h"
36 #include "libavutil/hwcontext.h"
37 #include "libavutil/internal.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/mem_internal.h"
40 #include "libavutil/pixdesc.h"
41 #include "libavutil/imgutils.h"
42 #include "libavutil/samplefmt.h"
43 #include "libavutil/dict.h"
44 #include "libavutil/thread.h"
45 #include "avcodec.h"
46 #include "decode.h"
47 #include "hwaccel.h"
48 #include "libavutil/opt.h"
49 #include "mpegvideo.h"
50 #include "thread.h"
51 #include "frame_thread_encoder.h"
52 #include "internal.h"
53 #include "raw.h"
54 #include "bytestream.h"
55 #include "version.h"
56 #include <stdlib.h>
57 #include <stdarg.h>
58 #include <stdatomic.h>
59 #include <limits.h>
60 #include <float.h>
61 #if CONFIG_ICONV
62 # include <iconv.h>
63 #endif
64 
65 #include "libavutil/ffversion.h"
66 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
67 
69 
70 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
71 {
72  uint8_t **p = ptr;
73  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
74  av_freep(p);
75  *size = 0;
76  return;
77  }
78  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
79  memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
80 }
81 
82 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
83 {
84  uint8_t **p = ptr;
85  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
86  av_freep(p);
87  *size = 0;
88  return;
89  }
90  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
91  memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
92 }
93 
94 int av_codec_is_encoder(const AVCodec *codec)
95 {
96  return codec && (codec->encode_sub || codec->encode2 ||codec->send_frame);
97 }
98 
99 int av_codec_is_decoder(const AVCodec *codec)
100 {
101  return codec && (codec->decode || codec->receive_frame);
102 }
103 
105 {
106  int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
107 
108  if (ret < 0)
109  width = height = 0;
110 
111  s->coded_width = width;
112  s->coded_height = height;
113  s->width = AV_CEIL_RSHIFT(width, s->lowres);
114  s->height = AV_CEIL_RSHIFT(height, s->lowres);
115 
116  return ret;
117 }
118 
120 {
121  int ret = av_image_check_sar(avctx->width, avctx->height, sar);
122 
123  if (ret < 0) {
124  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
125  sar.num, sar.den);
126  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
127  return ret;
128  } else {
129  avctx->sample_aspect_ratio = sar;
130  }
131  return 0;
132 }
133 
135  enum AVMatrixEncoding matrix_encoding)
136 {
137  AVFrameSideData *side_data;
138  enum AVMatrixEncoding *data;
139 
141  if (!side_data)
143  sizeof(enum AVMatrixEncoding));
144 
145  if (!side_data)
146  return AVERROR(ENOMEM);
147 
148  data = (enum AVMatrixEncoding*)side_data->data;
149  *data = matrix_encoding;
150 
151  return 0;
152 }
153 
155  int linesize_align[AV_NUM_DATA_POINTERS])
156 {
157  int i;
158  int w_align = 1;
159  int h_align = 1;
161 
162  if (desc) {
163  w_align = 1 << desc->log2_chroma_w;
164  h_align = 1 << desc->log2_chroma_h;
165  }
166 
167  switch (s->pix_fmt) {
168  case AV_PIX_FMT_YUV420P:
169  case AV_PIX_FMT_YUYV422:
170  case AV_PIX_FMT_YVYU422:
171  case AV_PIX_FMT_UYVY422:
172  case AV_PIX_FMT_YUV422P:
173  case AV_PIX_FMT_YUV440P:
174  case AV_PIX_FMT_YUV444P:
175  case AV_PIX_FMT_GBRP:
176  case AV_PIX_FMT_GBRAP:
177  case AV_PIX_FMT_GRAY8:
178  case AV_PIX_FMT_GRAY16BE:
179  case AV_PIX_FMT_GRAY16LE:
180  case AV_PIX_FMT_YUVJ420P:
181  case AV_PIX_FMT_YUVJ422P:
182  case AV_PIX_FMT_YUVJ440P:
183  case AV_PIX_FMT_YUVJ444P:
184  case AV_PIX_FMT_YUVA420P:
185  case AV_PIX_FMT_YUVA422P:
186  case AV_PIX_FMT_YUVA444P:
239  case AV_PIX_FMT_GBRP9LE:
240  case AV_PIX_FMT_GBRP9BE:
241  case AV_PIX_FMT_GBRP10LE:
242  case AV_PIX_FMT_GBRP10BE:
243  case AV_PIX_FMT_GBRP12LE:
244  case AV_PIX_FMT_GBRP12BE:
245  case AV_PIX_FMT_GBRP14LE:
246  case AV_PIX_FMT_GBRP14BE:
247  case AV_PIX_FMT_GBRP16LE:
248  case AV_PIX_FMT_GBRP16BE:
253  w_align = 16; //FIXME assume 16 pixel per macroblock
254  h_align = 16 * 2; // interlaced needs 2 macroblocks height
255  break;
256  case AV_PIX_FMT_YUV411P:
257  case AV_PIX_FMT_YUVJ411P:
259  w_align = 32;
260  h_align = 16 * 2;
261  break;
262  case AV_PIX_FMT_YUV410P:
263  if (s->codec_id == AV_CODEC_ID_SVQ1) {
264  w_align = 64;
265  h_align = 64;
266  }
267  break;
268  case AV_PIX_FMT_RGB555:
269  if (s->codec_id == AV_CODEC_ID_RPZA) {
270  w_align = 4;
271  h_align = 4;
272  }
274  w_align = 8;
275  h_align = 8;
276  }
277  break;
278  case AV_PIX_FMT_PAL8:
279  case AV_PIX_FMT_BGR8:
280  case AV_PIX_FMT_RGB8:
281  if (s->codec_id == AV_CODEC_ID_SMC ||
283  w_align = 4;
284  h_align = 4;
285  }
286  if (s->codec_id == AV_CODEC_ID_JV ||
288  w_align = 8;
289  h_align = 8;
290  }
291  break;
292  case AV_PIX_FMT_BGR24:
293  if ((s->codec_id == AV_CODEC_ID_MSZH) ||
294  (s->codec_id == AV_CODEC_ID_ZLIB)) {
295  w_align = 4;
296  h_align = 4;
297  }
298  break;
299  case AV_PIX_FMT_RGB24:
300  if (s->codec_id == AV_CODEC_ID_CINEPAK) {
301  w_align = 4;
302  h_align = 4;
303  }
304  break;
305  default:
306  break;
307  }
308 
309  if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
310  w_align = FFMAX(w_align, 8);
311  }
312 
313  *width = FFALIGN(*width, w_align);
314  *height = FFALIGN(*height, h_align);
315  if (s->codec_id == AV_CODEC_ID_H264 || s->lowres ||
318  ) {
319  // some of the optimized chroma MC reads one line too much
320  // which is also done in mpeg decoders with lowres > 0
321  *height += 2;
322 
323  // H.264 uses edge emulation for out of frame motion vectors, for this
324  // it requires a temporary area large enough to hold a 21x21 block,
325  // increasing witdth ensure that the temporary area is large enough,
326  // the next rounded up width is 32
327  *width = FFMAX(*width, 32);
328  }
329 
330  for (i = 0; i < 4; i++)
331  linesize_align[i] = STRIDE_ALIGN;
332 }
333 
335 {
337  int chroma_shift = desc->log2_chroma_w;
338  int linesize_align[AV_NUM_DATA_POINTERS];
339  int align;
340 
341  avcodec_align_dimensions2(s, width, height, linesize_align);
342  align = FFMAX(linesize_align[0], linesize_align[3]);
343  linesize_align[1] <<= chroma_shift;
344  linesize_align[2] <<= chroma_shift;
345  align = FFMAX3(align, linesize_align[1], linesize_align[2]);
346  *width = FFALIGN(*width, align);
347 }
348 
349 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
350 {
351  if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
352  return AVERROR(EINVAL);
353  pos--;
354 
355  *xpos = (pos&1) * 128;
356  *ypos = ((pos>>1)^(pos<4)) * 128;
357 
358  return 0;
359 }
360 
362 {
363  int pos, xout, yout;
364 
365  for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
366  if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
367  return pos;
368  }
370 }
371 
373  enum AVSampleFormat sample_fmt, const uint8_t *buf,
374  int buf_size, int align)
375 {
376  int ch, planar, needed_size, ret = 0;
377 
378  needed_size = av_samples_get_buffer_size(NULL, nb_channels,
379  frame->nb_samples, sample_fmt,
380  align);
381  if (buf_size < needed_size)
382  return AVERROR(EINVAL);
383 
384  planar = av_sample_fmt_is_planar(sample_fmt);
385  if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
386  if (!(frame->extended_data = av_mallocz_array(nb_channels,
387  sizeof(*frame->extended_data))))
388  return AVERROR(ENOMEM);
389  } else {
390  frame->extended_data = frame->data;
391  }
392 
393  if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
394  (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
395  sample_fmt, align)) < 0) {
396  if (frame->extended_data != frame->data)
397  av_freep(&frame->extended_data);
398  return ret;
399  }
400  if (frame->extended_data != frame->data) {
401  for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
402  frame->data[ch] = frame->extended_data[ch];
403  }
404 
405  return ret;
406 }
407 
408 void ff_color_frame(AVFrame *frame, const int c[4])
409 {
411  int p, y, x;
412 
414 
415  for (p = 0; p<desc->nb_components; p++) {
416  uint8_t *dst = frame->data[p];
417  int is_chroma = p == 1 || p == 2;
418  int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
419  int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
420  for (y = 0; y < height; y++) {
421  if (desc->comp[0].depth >= 9) {
422  for (x = 0; x<bytes; x++)
423  ((uint16_t*)dst)[x] = c[p];
424  }else
425  memset(dst, c[p], bytes);
426  dst += frame->linesize[p];
427  }
428  }
429 }
430 
431 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
432 {
433  int i;
434 
435  for (i = 0; i < count; i++) {
436  int r = func(c, (char *)arg + i * size);
437  if (ret)
438  ret[i] = r;
439  }
440  emms_c();
441  return 0;
442 }
443 
444 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
445 {
446  int i;
447 
448  for (i = 0; i < count; i++) {
449  int r = func(c, arg, i, 0);
450  if (ret)
451  ret[i] = r;
452  }
453  emms_c();
454  return 0;
455 }
456 
458  unsigned int fourcc)
459 {
460  while (tags->pix_fmt >= 0) {
461  if (tags->fourcc == fourcc)
462  return tags->pix_fmt;
463  tags++;
464  }
465  return AV_PIX_FMT_NONE;
466 }
467 
468 #if FF_API_CODEC_GET_SET
469 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
470 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
471 MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
472 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
473 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
474 
475 unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
476 {
477  return codec->properties;
478 }
479 
481 {
482  return codec->max_lowres;
483 }
484 #endif
485 
488 }
489 
491 {
492  int64_t bit_rate;
493  int bits_per_sample;
494 
495  switch (ctx->codec_type) {
496  case AVMEDIA_TYPE_VIDEO:
497  case AVMEDIA_TYPE_DATA:
500  bit_rate = ctx->bit_rate;
501  break;
502  case AVMEDIA_TYPE_AUDIO:
503  bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
504  bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
505  break;
506  default:
507  bit_rate = 0;
508  break;
509  }
510  return bit_rate;
511 }
512 
513 
514 static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
515 {
516  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
518 }
519 
520 static void ff_unlock_avcodec(const AVCodec *codec)
521 {
522  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
524 }
525 
526 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
527 {
528  int ret = 0;
529 
530  ff_unlock_avcodec(codec);
531 
532  ret = avcodec_open2(avctx, codec, options);
533 
534  ff_lock_avcodec(avctx, codec);
535  return ret;
536 }
537 
538 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
539 {
540  int ret = 0;
541  AVDictionary *tmp = NULL;
542  const AVPixFmtDescriptor *pixdesc;
543 
544  if (avcodec_is_open(avctx))
545  return 0;
546 
547  if ((!codec && !avctx->codec)) {
548  av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
549  return AVERROR(EINVAL);
550  }
551  if ((codec && avctx->codec && codec != avctx->codec)) {
552  av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
553  "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
554  return AVERROR(EINVAL);
555  }
556  if (!codec)
557  codec = avctx->codec;
558 
559  if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
560  return AVERROR(EINVAL);
561 
562  if (options)
563  av_dict_copy(&tmp, *options, 0);
564 
565  ff_lock_avcodec(avctx, codec);
566 
567  avctx->internal = av_mallocz(sizeof(*avctx->internal));
568  if (!avctx->internal) {
569  ret = AVERROR(ENOMEM);
570  goto end;
571  }
572 
573  avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
574  if (!avctx->internal->pool) {
575  ret = AVERROR(ENOMEM);
576  goto free_and_end;
577  }
578 
579  avctx->internal->to_free = av_frame_alloc();
580  if (!avctx->internal->to_free) {
581  ret = AVERROR(ENOMEM);
582  goto free_and_end;
583  }
584 
586  if (!avctx->internal->compat_decode_frame) {
587  ret = AVERROR(ENOMEM);
588  goto free_and_end;
589  }
590 
592  if (!avctx->internal->buffer_frame) {
593  ret = AVERROR(ENOMEM);
594  goto free_and_end;
595  }
596 
597  avctx->internal->buffer_pkt = av_packet_alloc();
598  if (!avctx->internal->buffer_pkt) {
599  ret = AVERROR(ENOMEM);
600  goto free_and_end;
601  }
602 
603  avctx->internal->ds.in_pkt = av_packet_alloc();
604  if (!avctx->internal->ds.in_pkt) {
605  ret = AVERROR(ENOMEM);
606  goto free_and_end;
607  }
608 
610  if (!avctx->internal->last_pkt_props) {
611  ret = AVERROR(ENOMEM);
612  goto free_and_end;
613  }
614 
615  avctx->internal->skip_samples_multiplier = 1;
616 
617  if (codec->priv_data_size > 0) {
618  if (!avctx->priv_data) {
619  avctx->priv_data = av_mallocz(codec->priv_data_size);
620  if (!avctx->priv_data) {
621  ret = AVERROR(ENOMEM);
622  goto end;
623  }
624  if (codec->priv_class) {
625  *(const AVClass **)avctx->priv_data = codec->priv_class;
627  }
628  }
629  if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
630  goto free_and_end;
631  } else {
632  avctx->priv_data = NULL;
633  }
634  if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
635  goto free_and_end;
636 
637  if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
638  av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
639  ret = AVERROR(EINVAL);
640  goto free_and_end;
641  }
642 
643  // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
644  if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
645  (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
646  if (avctx->coded_width && avctx->coded_height)
647  ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
648  else if (avctx->width && avctx->height)
649  ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
650  if (ret < 0)
651  goto free_and_end;
652  }
653 
654  if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
655  && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
656  || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
657  av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
658  ff_set_dimensions(avctx, 0, 0);
659  }
660 
661  if (avctx->width > 0 && avctx->height > 0) {
662  if (av_image_check_sar(avctx->width, avctx->height,
663  avctx->sample_aspect_ratio) < 0) {
664  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
665  avctx->sample_aspect_ratio.num,
666  avctx->sample_aspect_ratio.den);
667  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
668  }
669  }
670 
671  /* if the decoder init function was already called previously,
672  * free the already allocated subtitle_header before overwriting it */
673  if (av_codec_is_decoder(codec))
674  av_freep(&avctx->subtitle_header);
675 
676  if (avctx->channels > FF_SANE_NB_CHANNELS) {
677  ret = AVERROR(EINVAL);
678  goto free_and_end;
679  }
680 
681  avctx->codec = codec;
682  if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
683  avctx->codec_id == AV_CODEC_ID_NONE) {
684  avctx->codec_type = codec->type;
685  avctx->codec_id = codec->id;
686  }
687  if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
688  && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
689  av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
690  ret = AVERROR(EINVAL);
691  goto free_and_end;
692  }
693  avctx->frame_number = 0;
695 
696  if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
698  const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
699  AVCodec *codec2;
700  av_log(avctx, AV_LOG_ERROR,
701  "The %s '%s' is experimental but experimental codecs are not enabled, "
702  "add '-strict %d' if you want to use it.\n",
703  codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
704  codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
705  if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
706  av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
707  codec_string, codec2->name);
708  ret = AVERROR_EXPERIMENTAL;
709  goto free_and_end;
710  }
711 
712  if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
713  (!avctx->time_base.num || !avctx->time_base.den)) {
714  avctx->time_base.num = 1;
715  avctx->time_base.den = avctx->sample_rate;
716  }
717 
718  if (!HAVE_THREADS)
719  av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
720 
721  if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
722  ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
723  ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
724  ff_lock_avcodec(avctx, codec);
725  if (ret < 0)
726  goto free_and_end;
727  }
728 
729  if (HAVE_THREADS
731  ret = ff_thread_init(avctx);
732  if (ret < 0) {
733  goto free_and_end;
734  }
735  }
736  if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
737  avctx->thread_count = 1;
738 
739  if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
740  av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
741  avctx->codec->max_lowres);
742  avctx->lowres = avctx->codec->max_lowres;
743  }
744 
745  if (av_codec_is_encoder(avctx->codec)) {
746  int i;
747 #if FF_API_CODED_FRAME
749  avctx->coded_frame = av_frame_alloc();
750  if (!avctx->coded_frame) {
751  ret = AVERROR(ENOMEM);
752  goto free_and_end;
753  }
755 #endif
756 
757  if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
758  av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
759  ret = AVERROR(EINVAL);
760  goto free_and_end;
761  }
762 
763  if (avctx->codec->sample_fmts) {
764  for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
765  if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
766  break;
767  if (avctx->channels == 1 &&
770  avctx->sample_fmt = avctx->codec->sample_fmts[i];
771  break;
772  }
773  }
774  if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
775  char buf[128];
776  snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
777  av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
778  (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
779  ret = AVERROR(EINVAL);
780  goto free_and_end;
781  }
782  }
783  if (avctx->codec->pix_fmts) {
784  for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
785  if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
786  break;
787  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
788  && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
790  char buf[128];
791  snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
792  av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
793  (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
794  ret = AVERROR(EINVAL);
795  goto free_and_end;
796  }
797  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
798  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
799  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
800  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
801  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
802  avctx->color_range = AVCOL_RANGE_JPEG;
803  }
804  if (avctx->codec->supported_samplerates) {
805  for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
806  if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
807  break;
808  if (avctx->codec->supported_samplerates[i] == 0) {
809  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
810  avctx->sample_rate);
811  ret = AVERROR(EINVAL);
812  goto free_and_end;
813  }
814  }
815  if (avctx->sample_rate < 0) {
816  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
817  avctx->sample_rate);
818  ret = AVERROR(EINVAL);
819  goto free_and_end;
820  }
821  if (avctx->codec->channel_layouts) {
822  if (!avctx->channel_layout) {
823  av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
824  } else {
825  for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
826  if (avctx->channel_layout == avctx->codec->channel_layouts[i])
827  break;
828  if (avctx->codec->channel_layouts[i] == 0) {
829  char buf[512];
830  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
831  av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
832  ret = AVERROR(EINVAL);
833  goto free_and_end;
834  }
835  }
836  }
837  if (avctx->channel_layout && avctx->channels) {
839  if (channels != avctx->channels) {
840  char buf[512];
841  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
842  av_log(avctx, AV_LOG_ERROR,
843  "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
844  buf, channels, avctx->channels);
845  ret = AVERROR(EINVAL);
846  goto free_and_end;
847  }
848  } else if (avctx->channel_layout) {
850  }
851  if (avctx->channels < 0) {
852  av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
853  avctx->channels);
854  ret = AVERROR(EINVAL);
855  goto free_and_end;
856  }
857  if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
858  pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
859  if ( avctx->bits_per_raw_sample < 0
860  || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
861  av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
862  avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
863  avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
864  }
865  if (avctx->width <= 0 || avctx->height <= 0) {
866  av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
867  ret = AVERROR(EINVAL);
868  goto free_and_end;
869  }
870  }
871  if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
872  && avctx->bit_rate>0 && avctx->bit_rate<1000) {
873  av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
874  }
875 
876  if (!avctx->rc_initial_buffer_occupancy)
877  avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
878 
879  if (avctx->ticks_per_frame && avctx->time_base.num &&
880  avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
881  av_log(avctx, AV_LOG_ERROR,
882  "ticks_per_frame %d too large for the timebase %d/%d.",
883  avctx->ticks_per_frame,
884  avctx->time_base.num,
885  avctx->time_base.den);
886  goto free_and_end;
887  }
888 
889  if (avctx->hw_frames_ctx) {
890  AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
891  if (frames_ctx->format != avctx->pix_fmt) {
892  av_log(avctx, AV_LOG_ERROR,
893  "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
894  ret = AVERROR(EINVAL);
895  goto free_and_end;
896  }
897  if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
898  avctx->sw_pix_fmt != frames_ctx->sw_format) {
899  av_log(avctx, AV_LOG_ERROR,
900  "Mismatching AVCodecContext.sw_pix_fmt (%s) "
901  "and AVHWFramesContext.sw_format (%s)\n",
903  av_get_pix_fmt_name(frames_ctx->sw_format));
904  ret = AVERROR(EINVAL);
905  goto free_and_end;
906  }
907  avctx->sw_pix_fmt = frames_ctx->sw_format;
908  }
909  }
910 
913  avctx->pts_correction_last_pts =
914  avctx->pts_correction_last_dts = INT64_MIN;
915 
916  if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
918  av_log(avctx, AV_LOG_WARNING,
919  "gray decoding requested but not enabled at configuration time\n");
920 
921  if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
922  || avctx->internal->frame_thread_encoder)) {
923  ret = avctx->codec->init(avctx);
924  if (ret < 0) {
925  goto free_and_end;
926  }
927  }
928 
929  ret=0;
930 
931  if (av_codec_is_decoder(avctx->codec)) {
932  if (!avctx->bit_rate)
933  avctx->bit_rate = get_bit_rate(avctx);
934  /* validate channel layout from the decoder */
935  if (avctx->channel_layout) {
937  if (!avctx->channels)
938  avctx->channels = channels;
939  else if (channels != avctx->channels) {
940  char buf[512];
941  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
942  av_log(avctx, AV_LOG_WARNING,
943  "Channel layout '%s' with %d channels does not match specified number of channels %d: "
944  "ignoring specified channel layout\n",
945  buf, channels, avctx->channels);
946  avctx->channel_layout = 0;
947  }
948  }
949  if (avctx->channels && avctx->channels < 0 ||
950  avctx->channels > FF_SANE_NB_CHANNELS) {
951  ret = AVERROR(EINVAL);
952  goto free_and_end;
953  }
954  if (avctx->sub_charenc) {
955  if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
956  av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
957  "supported with subtitles codecs\n");
958  ret = AVERROR(EINVAL);
959  goto free_and_end;
960  } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
961  av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
962  "subtitles character encoding will be ignored\n",
963  avctx->codec_descriptor->name);
965  } else {
966  /* input character encoding is set for a text based subtitle
967  * codec at this point */
970 
972 #if CONFIG_ICONV
973  iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
974  if (cd == (iconv_t)-1) {
975  ret = AVERROR(errno);
976  av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
977  "with input character encoding \"%s\"\n", avctx->sub_charenc);
978  goto free_and_end;
979  }
980  iconv_close(cd);
981 #else
982  av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
983  "conversion needs a libavcodec built with iconv support "
984  "for this codec\n");
985  ret = AVERROR(ENOSYS);
986  goto free_and_end;
987 #endif
988  }
989  }
990  }
991 
992 #if FF_API_AVCTX_TIMEBASE
993  if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
994  avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
995 #endif
996  }
997  if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
998  av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
999  }
1000 
1001 end:
1002  ff_unlock_avcodec(codec);
1003  if (options) {
1005  *options = tmp;
1006  }
1007 
1008  return ret;
1009 free_and_end:
1010  if (avctx->codec &&
1011  (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP))
1012  avctx->codec->close(avctx);
1013 
1014  if (codec->priv_class && codec->priv_data_size)
1015  av_opt_free(avctx->priv_data);
1016  av_opt_free(avctx);
1017 
1018 #if FF_API_CODED_FRAME
1020  av_frame_free(&avctx->coded_frame);
1022 #endif
1023 
1024  av_dict_free(&tmp);
1025  av_freep(&avctx->priv_data);
1026  if (avctx->internal) {
1027  av_frame_free(&avctx->internal->to_free);
1028  av_frame_free(&avctx->internal->compat_decode_frame);
1029  av_frame_free(&avctx->internal->buffer_frame);
1030  av_packet_free(&avctx->internal->buffer_pkt);
1031  av_packet_free(&avctx->internal->last_pkt_props);
1032 
1033  av_packet_free(&avctx->internal->ds.in_pkt);
1034 
1035  av_freep(&avctx->internal->pool);
1036  }
1037  av_freep(&avctx->internal);
1038  avctx->codec = NULL;
1039  goto end;
1040 }
1041 
1043 {
1044  int i;
1045 
1046  for (i = 0; i < sub->num_rects; i++) {
1047  av_freep(&sub->rects[i]->data[0]);
1048  av_freep(&sub->rects[i]->data[1]);
1049  av_freep(&sub->rects[i]->data[2]);
1050  av_freep(&sub->rects[i]->data[3]);
1051  av_freep(&sub->rects[i]->text);
1052  av_freep(&sub->rects[i]->ass);
1053  av_freep(&sub->rects[i]);
1054  }
1055 
1056  av_freep(&sub->rects);
1057 
1058  memset(sub, 0, sizeof(*sub));
1059 }
1060 
1062 {
1063  int i;
1064 
1065  if (!avctx)
1066  return 0;
1067 
1068  if (avcodec_is_open(avctx)) {
1069  FramePool *pool = avctx->internal->pool;
1070  if (CONFIG_FRAME_THREAD_ENCODER &&
1071  avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1073  }
1074  if (HAVE_THREADS && avctx->internal->thread_ctx)
1075  ff_thread_free(avctx);
1076  if (avctx->codec && avctx->codec->close)
1077  avctx->codec->close(avctx);
1078  avctx->internal->byte_buffer_size = 0;
1079  av_freep(&avctx->internal->byte_buffer);
1080  av_frame_free(&avctx->internal->to_free);
1085 
1086  av_packet_free(&avctx->internal->ds.in_pkt);
1087 
1088  for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
1089  av_buffer_pool_uninit(&pool->pools[i]);
1090  av_freep(&avctx->internal->pool);
1091 
1092  if (avctx->hwaccel && avctx->hwaccel->uninit)
1093  avctx->hwaccel->uninit(avctx);
1095 
1096  ff_decode_bsfs_uninit(avctx);
1097 
1098  av_freep(&avctx->internal);
1099  }
1100 
1101  for (i = 0; i < avctx->nb_coded_side_data; i++)
1102  av_freep(&avctx->coded_side_data[i].data);
1103  av_freep(&avctx->coded_side_data);
1104  avctx->nb_coded_side_data = 0;
1105 
1106  av_buffer_unref(&avctx->hw_frames_ctx);
1107  av_buffer_unref(&avctx->hw_device_ctx);
1108 
1109  if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1110  av_opt_free(avctx->priv_data);
1111  av_opt_free(avctx);
1112  av_freep(&avctx->priv_data);
1113  if (av_codec_is_encoder(avctx->codec)) {
1114  av_freep(&avctx->extradata);
1115 #if FF_API_CODED_FRAME
1117  av_frame_free(&avctx->coded_frame);
1119 #endif
1120  }
1121  avctx->codec = NULL;
1122  avctx->active_thread_type = 0;
1123 
1124  return 0;
1125 }
1126 
1127 const char *avcodec_get_name(enum AVCodecID id)
1128 {
1129  const AVCodecDescriptor *cd;
1130  AVCodec *codec;
1131 
1132  if (id == AV_CODEC_ID_NONE)
1133  return "none";
1134  cd = avcodec_descriptor_get(id);
1135  if (cd)
1136  return cd->name;
1137  av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1138  codec = avcodec_find_decoder(id);
1139  if (codec)
1140  return codec->name;
1141  codec = avcodec_find_encoder(id);
1142  if (codec)
1143  return codec->name;
1144  return "unknown_codec";
1145 }
1146 
1147 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1148 {
1149  int i, len, ret = 0;
1150 
1151 #define TAG_PRINT(x) \
1152  (((x) >= '0' && (x) <= '9') || \
1153  ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1154  ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
1155 
1156  for (i = 0; i < 4; i++) {
1157  len = snprintf(buf, buf_size,
1158  TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1159  buf += len;
1160  buf_size = buf_size > len ? buf_size - len : 0;
1161  ret += len;
1162  codec_tag >>= 8;
1163  }
1164  return ret;
1165 }
1166 
1167 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1168 {
1169  const char *codec_type;
1170  const char *codec_name;
1171  const char *profile = NULL;
1172  int64_t bitrate;
1173  int new_line = 0;
1174  AVRational display_aspect_ratio;
1175  const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1176 
1177  if (!buf || buf_size <= 0)
1178  return;
1179  codec_type = av_get_media_type_string(enc->codec_type);
1180  codec_name = avcodec_get_name(enc->codec_id);
1181  profile = avcodec_profile_name(enc->codec_id, enc->profile);
1182 
1183  snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1184  codec_name);
1185  buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1186 
1187  if (enc->codec && strcmp(enc->codec->name, codec_name))
1188  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1189 
1190  if (profile)
1191  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1192  if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1194  && enc->refs)
1195  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1196  ", %d reference frame%s",
1197  enc->refs, enc->refs > 1 ? "s" : "");
1198 
1199  if (enc->codec_tag)
1200  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1201  av_fourcc2str(enc->codec_tag), enc->codec_tag);
1202 
1203  switch (enc->codec_type) {
1204  case AVMEDIA_TYPE_VIDEO:
1205  {
1206  char detail[256] = "(";
1207 
1208  av_strlcat(buf, separator, buf_size);
1209 
1210  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1211  "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1213  if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1215  av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1217  av_strlcatf(detail, sizeof(detail), "%s, ",
1219 
1220  if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1222  enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1223  if (enc->colorspace != (int)enc->color_primaries ||
1224  enc->colorspace != (int)enc->color_trc) {
1225  new_line = 1;
1226  av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1230  } else
1231  av_strlcatf(detail, sizeof(detail), "%s, ",
1233  }
1234 
1235  if (enc->field_order != AV_FIELD_UNKNOWN) {
1236  const char *field_order = "progressive";
1237  if (enc->field_order == AV_FIELD_TT)
1238  field_order = "top first";
1239  else if (enc->field_order == AV_FIELD_BB)
1240  field_order = "bottom first";
1241  else if (enc->field_order == AV_FIELD_TB)
1242  field_order = "top coded first (swapped)";
1243  else if (enc->field_order == AV_FIELD_BT)
1244  field_order = "bottom coded first (swapped)";
1245 
1246  av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1247  }
1248 
1249  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1251  av_strlcatf(detail, sizeof(detail), "%s, ",
1253 
1254  if (strlen(detail) > 1) {
1255  detail[strlen(detail) - 2] = 0;
1256  av_strlcatf(buf, buf_size, "%s)", detail);
1257  }
1258  }
1259 
1260  if (enc->width) {
1261  av_strlcat(buf, new_line ? separator : ", ", buf_size);
1262 
1263  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1264  "%dx%d",
1265  enc->width, enc->height);
1266 
1267  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1268  (enc->width != enc->coded_width ||
1269  enc->height != enc->coded_height))
1270  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1271  " (%dx%d)", enc->coded_width, enc->coded_height);
1272 
1273  if (enc->sample_aspect_ratio.num) {
1274  av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1275  enc->width * (int64_t)enc->sample_aspect_ratio.num,
1276  enc->height * (int64_t)enc->sample_aspect_ratio.den,
1277  1024 * 1024);
1278  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1279  " [SAR %d:%d DAR %d:%d]",
1281  display_aspect_ratio.num, display_aspect_ratio.den);
1282  }
1283  if (av_log_get_level() >= AV_LOG_DEBUG) {
1284  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1285  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1286  ", %d/%d",
1287  enc->time_base.num / g, enc->time_base.den / g);
1288  }
1289  }
1290  if (encode) {
1291  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1292  ", q=%d-%d", enc->qmin, enc->qmax);
1293  } else {
1295  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1296  ", Closed Captions");
1298  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1299  ", lossless");
1300  }
1301  break;
1302  case AVMEDIA_TYPE_AUDIO:
1303  av_strlcat(buf, separator, buf_size);
1304 
1305  if (enc->sample_rate) {
1306  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1307  "%d Hz, ", enc->sample_rate);
1308  }
1309  av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1310  if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1311  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1312  ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1313  }
1314  if ( enc->bits_per_raw_sample > 0
1316  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1317  " (%d bit)", enc->bits_per_raw_sample);
1318  if (av_log_get_level() >= AV_LOG_VERBOSE) {
1319  if (enc->initial_padding)
1320  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1321  ", delay %d", enc->initial_padding);
1322  if (enc->trailing_padding)
1323  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1324  ", padding %d", enc->trailing_padding);
1325  }
1326  break;
1327  case AVMEDIA_TYPE_DATA:
1328  if (av_log_get_level() >= AV_LOG_DEBUG) {
1329  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1330  if (g)
1331  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1332  ", %d/%d",
1333  enc->time_base.num / g, enc->time_base.den / g);
1334  }
1335  break;
1336  case AVMEDIA_TYPE_SUBTITLE:
1337  if (enc->width)
1338  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1339  ", %dx%d", enc->width, enc->height);
1340  break;
1341  default:
1342  return;
1343  }
1344  if (encode) {
1345  if (enc->flags & AV_CODEC_FLAG_PASS1)
1346  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1347  ", pass 1");
1348  if (enc->flags & AV_CODEC_FLAG_PASS2)
1349  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1350  ", pass 2");
1351  }
1352  bitrate = get_bit_rate(enc);
1353  if (bitrate != 0) {
1354  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1355  ", %"PRId64" kb/s", bitrate / 1000);
1356  } else if (enc->rc_max_rate > 0) {
1357  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1358  ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1359  }
1360 }
1361 
1362 const char *av_get_profile_name(const AVCodec *codec, int profile)
1363 {
1364  const AVProfile *p;
1365  if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1366  return NULL;
1367 
1368  for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1369  if (p->profile == profile)
1370  return p->name;
1371 
1372  return NULL;
1373 }
1374 
1376 {
1377  const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1378  const AVProfile *p;
1379 
1380  if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1381  return NULL;
1382 
1383  for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1384  if (p->profile == profile)
1385  return p->name;
1386 
1387  return NULL;
1388 }
1389 
1390 unsigned avcodec_version(void)
1391 {
1392 // av_assert0(AV_CODEC_ID_V410==164);
1395 // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
1396  av_assert0(AV_CODEC_ID_SRT==94216);
1398 
1399  return LIBAVCODEC_VERSION_INT;
1400 }
1401 
1402 const char *avcodec_configuration(void)
1403 {
1404  return FFMPEG_CONFIGURATION;
1405 }
1406 
1407 const char *avcodec_license(void)
1408 {
1409 #define LICENSE_PREFIX "libavcodec license: "
1410  return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
1411 }
1412 
1414 {
1415  switch (codec_id) {
1416  case AV_CODEC_ID_8SVX_EXP:
1417  case AV_CODEC_ID_8SVX_FIB:
1418  case AV_CODEC_ID_ADPCM_CT:
1426  return 4;
1427  case AV_CODEC_ID_DSD_LSBF:
1428  case AV_CODEC_ID_DSD_MSBF:
1431  case AV_CODEC_ID_PCM_ALAW:
1432  case AV_CODEC_ID_PCM_MULAW:
1433  case AV_CODEC_ID_PCM_S8:
1435  case AV_CODEC_ID_PCM_U8:
1436  case AV_CODEC_ID_PCM_ZORK:
1437  case AV_CODEC_ID_SDX2_DPCM:
1438  return 8;
1439  case AV_CODEC_ID_PCM_S16BE:
1441  case AV_CODEC_ID_PCM_S16LE:
1443  case AV_CODEC_ID_PCM_U16BE:
1444  case AV_CODEC_ID_PCM_U16LE:
1445  return 16;
1447  case AV_CODEC_ID_PCM_S24BE:
1448  case AV_CODEC_ID_PCM_S24LE:
1450  case AV_CODEC_ID_PCM_U24BE:
1451  case AV_CODEC_ID_PCM_U24LE:
1452  return 24;
1453  case AV_CODEC_ID_PCM_S32BE:
1454  case AV_CODEC_ID_PCM_S32LE:
1456  case AV_CODEC_ID_PCM_U32BE:
1457  case AV_CODEC_ID_PCM_U32LE:
1458  case AV_CODEC_ID_PCM_F32BE:
1459  case AV_CODEC_ID_PCM_F32LE:
1460  case AV_CODEC_ID_PCM_F24LE:
1461  case AV_CODEC_ID_PCM_F16LE:
1462  return 32;
1463  case AV_CODEC_ID_PCM_F64BE:
1464  case AV_CODEC_ID_PCM_F64LE:
1465  case AV_CODEC_ID_PCM_S64BE:
1466  case AV_CODEC_ID_PCM_S64LE:
1467  return 64;
1468  default:
1469  return 0;
1470  }
1471 }
1472 
1474 {
1475  static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
1487  };
1488  if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
1489  return AV_CODEC_ID_NONE;
1490  if (be < 0 || be > 1)
1491  be = AV_NE(1, 0);
1492  return map[fmt][be];
1493 }
1494 
1496 {
1497  switch (codec_id) {
1499  return 2;
1501  return 3;
1505  case AV_CODEC_ID_ADPCM_SWF:
1506  case AV_CODEC_ID_ADPCM_MS:
1507  return 4;
1508  default:
1509  return av_get_exact_bits_per_sample(codec_id);
1510  }
1511 }
1512 
1513 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1514  uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1515  uint8_t * extradata, int frame_size, int frame_bytes)
1516 {
1518  int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1519 
1520  /* codecs with an exact constant bits per sample */
1521  if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1522  return (frame_bytes * 8LL) / (bps * ch);
1523  bps = bits_per_coded_sample;
1524 
1525  /* codecs with a fixed packet duration */
1526  switch (id) {
1527  case AV_CODEC_ID_ADPCM_ADX: return 32;
1528  case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1529  case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1530  case AV_CODEC_ID_AMR_NB:
1531  case AV_CODEC_ID_EVRC:
1532  case AV_CODEC_ID_GSM:
1533  case AV_CODEC_ID_QCELP:
1534  case AV_CODEC_ID_RA_288: return 160;
1535  case AV_CODEC_ID_AMR_WB:
1536  case AV_CODEC_ID_GSM_MS: return 320;
1537  case AV_CODEC_ID_MP1: return 384;
1538  case AV_CODEC_ID_ATRAC1: return 512;
1539  case AV_CODEC_ID_ATRAC3: return 1024 * framecount;
1540  case AV_CODEC_ID_ATRAC3P: return 2048;
1541  case AV_CODEC_ID_MP2:
1542  case AV_CODEC_ID_MUSEPACK7: return 1152;
1543  case AV_CODEC_ID_AC3: return 1536;
1544  }
1545 
1546  if (sr > 0) {
1547  /* calc from sample rate */
1548  if (id == AV_CODEC_ID_TTA)
1549  return 256 * sr / 245;
1550  else if (id == AV_CODEC_ID_DST)
1551  return 588 * sr / 44100;
1552 
1553  if (ch > 0) {
1554  /* calc from sample rate and channels */
1555  if (id == AV_CODEC_ID_BINKAUDIO_DCT)
1556  return (480 << (sr / 22050)) / ch;
1557  }
1558 
1559  if (id == AV_CODEC_ID_MP3)
1560  return sr <= 24000 ? 576 : 1152;
1561  }
1562 
1563  if (ba > 0) {
1564  /* calc from block_align */
1565  if (id == AV_CODEC_ID_SIPR) {
1566  switch (ba) {
1567  case 20: return 160;
1568  case 19: return 144;
1569  case 29: return 288;
1570  case 37: return 480;
1571  }
1572  } else if (id == AV_CODEC_ID_ILBC) {
1573  switch (ba) {
1574  case 38: return 160;
1575  case 50: return 240;
1576  }
1577  }
1578  }
1579 
1580  if (frame_bytes > 0) {
1581  /* calc from frame_bytes only */
1582  if (id == AV_CODEC_ID_TRUESPEECH)
1583  return 240 * (frame_bytes / 32);
1584  if (id == AV_CODEC_ID_NELLYMOSER)
1585  return 256 * (frame_bytes / 64);
1586  if (id == AV_CODEC_ID_RA_144)
1587  return 160 * (frame_bytes / 20);
1588  if (id == AV_CODEC_ID_G723_1)
1589  return 240 * (frame_bytes / 24);
1590 
1591  if (bps > 0) {
1592  /* calc from frame_bytes and bits_per_coded_sample */
1594  return frame_bytes * 8 / bps;
1595  }
1596 
1597  if (ch > 0 && ch < INT_MAX/16) {
1598  /* calc from frame_bytes and channels */
1599  switch (id) {
1600  case AV_CODEC_ID_ADPCM_AFC:
1601  return frame_bytes / (9 * ch) * 16;
1602  case AV_CODEC_ID_ADPCM_PSX:
1603  case AV_CODEC_ID_ADPCM_DTK:
1604  return frame_bytes / (16 * ch) * 28;
1605  case AV_CODEC_ID_ADPCM_4XM:
1608  return (frame_bytes - 4 * ch) * 2 / ch;
1610  return (frame_bytes - 4) * 2 / ch;
1612  return (frame_bytes - 8) * 2 / ch;
1613  case AV_CODEC_ID_ADPCM_THP:
1615  if (extradata)
1616  return frame_bytes * 14 / (8 * ch);
1617  break;
1618  case AV_CODEC_ID_ADPCM_XA:
1619  return (frame_bytes / 128) * 224 / ch;
1621  return (frame_bytes - 6 - ch) / ch;
1622  case AV_CODEC_ID_ROQ_DPCM:
1623  return (frame_bytes - 8) / ch;
1624  case AV_CODEC_ID_XAN_DPCM:
1625  return (frame_bytes - 2 * ch) / ch;
1626  case AV_CODEC_ID_MACE3:
1627  return 3 * frame_bytes / ch;
1628  case AV_CODEC_ID_MACE6:
1629  return 6 * frame_bytes / ch;
1630  case AV_CODEC_ID_PCM_LXF:
1631  return 2 * (frame_bytes / (5 * ch));
1632  case AV_CODEC_ID_IAC:
1633  case AV_CODEC_ID_IMC:
1634  return 4 * frame_bytes / ch;
1635  }
1636 
1637  if (tag) {
1638  /* calc from frame_bytes, channels, and codec_tag */
1639  if (id == AV_CODEC_ID_SOL_DPCM) {
1640  if (tag == 3)
1641  return frame_bytes / ch;
1642  else
1643  return frame_bytes * 2 / ch;
1644  }
1645  }
1646 
1647  if (ba > 0) {
1648  /* calc from frame_bytes, channels, and block_align */
1649  int blocks = frame_bytes / ba;
1650  switch (id) {
1652  if (bps < 2 || bps > 5)
1653  return 0;
1654  return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1656  return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1658  return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1660  return blocks * ((ba - 4 * ch) * 2 / ch);
1661  case AV_CODEC_ID_ADPCM_MS:
1662  return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1664  return blocks * (ba - 16) * 2 / ch;
1665  }
1666  }
1667 
1668  if (bps > 0) {
1669  /* calc from frame_bytes, channels, and bits_per_coded_sample */
1670  switch (id) {
1671  case AV_CODEC_ID_PCM_DVD:
1672  if(bps<4 || frame_bytes<3)
1673  return 0;
1674  return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1676  if(bps<4 || frame_bytes<4)
1677  return 0;
1678  return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1679  case AV_CODEC_ID_S302M:
1680  return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1681  }
1682  }
1683  }
1684  }
1685 
1686  /* Fall back on using frame_size */
1687  if (frame_size > 1 && frame_bytes)
1688  return frame_size;
1689 
1690  //For WMA we currently have no other means to calculate duration thus we
1691  //do it here by assuming CBR, which is true for all known cases.
1692  if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1693  if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1694  return (frame_bytes * 8LL * sr) / bitrate;
1695  }
1696 
1697  return 0;
1698 }
1699 
1700 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1701 {
1702  return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1703  avctx->channels, avctx->block_align,
1704  avctx->codec_tag, avctx->bits_per_coded_sample,
1705  avctx->bit_rate, avctx->extradata, avctx->frame_size,
1706  frame_bytes);
1707 }
1708 
1710 {
1711  return get_audio_frame_duration(par->codec_id, par->sample_rate,
1712  par->channels, par->block_align,
1713  par->codec_tag, par->bits_per_coded_sample,
1714  par->bit_rate, par->extradata, par->frame_size,
1715  frame_bytes);
1716 }
1717 
1718 #if !HAVE_THREADS
1720 {
1721  return -1;
1722 }
1723 
1724 #endif
1725 
1726 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1727 {
1728  unsigned int n = 0;
1729 
1730  while (v >= 0xff) {
1731  *s++ = 0xff;
1732  v -= 0xff;
1733  n++;
1734  }
1735  *s = v;
1736  n++;
1737  return n;
1738 }
1739 
1740 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1741 {
1742  int i;
1743  for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1744  return i;
1745 }
1746 
1748 {
1749  int i;
1750  if (!codec->hw_configs || index < 0)
1751  return NULL;
1752  for (i = 0; i <= index; i++)
1753  if (!codec->hw_configs[i])
1754  return NULL;
1755  return &codec->hw_configs[index]->public;
1756 }
1757 
1758 #if FF_API_USER_VISIBLE_AVHWACCEL
1760 {
1761  return NULL;
1762 }
1763 
1765 {
1766 }
1767 #endif
1768 
1769 #if FF_API_LOCKMGR
1770 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1771 {
1772  return 0;
1773 }
1774 #endif
1775 
1776 unsigned int avpriv_toupper4(unsigned int x)
1777 {
1778  return av_toupper(x & 0xFF) +
1779  (av_toupper((x >> 8) & 0xFF) << 8) +
1780  (av_toupper((x >> 16) & 0xFF) << 16) +
1781 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1782 }
1783 
1785 {
1786  int ret;
1787 
1788  dst->owner[0] = src->owner[0];
1789  dst->owner[1] = src->owner[1];
1790 
1791  ret = av_frame_ref(dst->f, src->f);
1792  if (ret < 0)
1793  return ret;
1794 
1795  av_assert0(!dst->progress);
1796 
1797  if (src->progress &&
1798  !(dst->progress = av_buffer_ref(src->progress))) {
1799  ff_thread_release_buffer(dst->owner[0], dst);
1800  return AVERROR(ENOMEM);
1801  }
1802 
1803  return 0;
1804 }
1805 
1806 #if !HAVE_THREADS
1807 
1809 {
1810  return ff_get_format(avctx, fmt);
1811 }
1812 
1814 {
1815  f->owner[0] = f->owner[1] = avctx;
1816  return ff_get_buffer(avctx, f->f, flags);
1817 }
1818 
1820 {
1821  if (f->f)
1822  av_frame_unref(f->f);
1823 }
1824 
1826 {
1827 }
1828 
1829 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
1830 {
1831 }
1832 
1833 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1834 {
1835 }
1836 
1838 {
1839  return 1;
1840 }
1841 
1843 {
1844  return 0;
1845 }
1846 
1848 {
1849 }
1850 
1851 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1852 {
1853 }
1854 
1855 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
1856 {
1857 }
1858 
1859 #endif
1860 
1862 {
1863  return !!s->internal;
1864 }
1865 
1866 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
1867 {
1868  int ret;
1869  char *str;
1870 
1871  ret = av_bprint_finalize(buf, &str);
1872  if (ret < 0)
1873  return ret;
1874  if (!av_bprint_is_complete(buf)) {
1875  av_free(str);
1876  return AVERROR(ENOMEM);
1877  }
1878 
1879  avctx->extradata = str;
1880  /* Note: the string is NUL terminated (so extradata can be read as a
1881  * string), but the ending character is not accounted in the size (in
1882  * binary formats you are likely not supposed to mux that character). When
1883  * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
1884  * zeros. */
1885  avctx->extradata_size = buf->len;
1886  return 0;
1887 }
1888 
1889 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
1890  const uint8_t *end,
1891  uint32_t *av_restrict state)
1892 {
1893  int i;
1894 
1895  av_assert0(p <= end);
1896  if (p >= end)
1897  return end;
1898 
1899  for (i = 0; i < 3; i++) {
1900  uint32_t tmp = *state << 8;
1901  *state = tmp + *(p++);
1902  if (tmp == 0x100 || p == end)
1903  return p;
1904  }
1905 
1906  while (p < end) {
1907  if (p[-1] > 1 ) p += 3;
1908  else if (p[-2] ) p += 2;
1909  else if (p[-3]|(p[-1]-1)) p++;
1910  else {
1911  p++;
1912  break;
1913  }
1914  }
1915 
1916  p = FFMIN(p, end) - 4;
1917  *state = AV_RB32(p);
1918 
1919  return p + 4;
1920 }
1921 
1923 {
1924  AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
1925  if (!props)
1926  return NULL;
1927 
1928  if (size)
1929  *size = sizeof(*props);
1930 
1931  props->vbv_delay = UINT64_MAX;
1932 
1933  return props;
1934 }
1935 
1937 {
1939  AVCPBProperties *props;
1940  size_t size;
1941 
1942  props = av_cpb_properties_alloc(&size);
1943  if (!props)
1944  return NULL;
1945 
1946  tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
1947  if (!tmp) {
1948  av_freep(&props);
1949  return NULL;
1950  }
1951 
1952  avctx->coded_side_data = tmp;
1953  avctx->nb_coded_side_data++;
1954 
1956  avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
1957  avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
1958 
1959  return props;
1960 }
1961 
1963 {
1964  av_freep(&par->extradata);
1965 
1966  memset(par, 0, sizeof(*par));
1967 
1969  par->codec_id = AV_CODEC_ID_NONE;
1970  par->format = -1;
1977  par->sample_aspect_ratio = (AVRational){ 0, 1 };
1978  par->profile = FF_PROFILE_UNKNOWN;
1979  par->level = FF_LEVEL_UNKNOWN;
1980 }
1981 
1983 {
1984  AVCodecParameters *par = av_mallocz(sizeof(*par));
1985 
1986  if (!par)
1987  return NULL;
1989  return par;
1990 }
1991 
1993 {
1994  AVCodecParameters *par = *ppar;
1995 
1996  if (!par)
1997  return;
1999 
2000  av_freep(ppar);
2001 }
2002 
2004 {
2006  memcpy(dst, src, sizeof(*dst));
2007 
2008  dst->extradata = NULL;
2009  dst->extradata_size = 0;
2010  if (src->extradata) {
2012  if (!dst->extradata)
2013  return AVERROR(ENOMEM);
2014  memcpy(dst->extradata, src->extradata, src->extradata_size);
2015  dst->extradata_size = src->extradata_size;
2016  }
2017 
2018  return 0;
2019 }
2020 
2022  const AVCodecContext *codec)
2023 {
2025 
2026  par->codec_type = codec->codec_type;
2027  par->codec_id = codec->codec_id;
2028  par->codec_tag = codec->codec_tag;
2029 
2030  par->bit_rate = codec->bit_rate;
2033  par->profile = codec->profile;
2034  par->level = codec->level;
2035 
2036  switch (par->codec_type) {
2037  case AVMEDIA_TYPE_VIDEO:
2038  par->format = codec->pix_fmt;
2039  par->width = codec->width;
2040  par->height = codec->height;
2041  par->field_order = codec->field_order;
2042  par->color_range = codec->color_range;
2043  par->color_primaries = codec->color_primaries;
2044  par->color_trc = codec->color_trc;
2045  par->color_space = codec->colorspace;
2048  par->video_delay = codec->has_b_frames;
2049  break;
2050  case AVMEDIA_TYPE_AUDIO:
2051  par->format = codec->sample_fmt;
2052  par->channel_layout = codec->channel_layout;
2053  par->channels = codec->channels;
2054  par->sample_rate = codec->sample_rate;
2055  par->block_align = codec->block_align;
2056  par->frame_size = codec->frame_size;
2057  par->initial_padding = codec->initial_padding;
2058  par->trailing_padding = codec->trailing_padding;
2059  par->seek_preroll = codec->seek_preroll;
2060  break;
2061  case AVMEDIA_TYPE_SUBTITLE:
2062  par->width = codec->width;
2063  par->height = codec->height;
2064  break;
2065  }
2066 
2067  if (codec->extradata) {
2069  if (!par->extradata)
2070  return AVERROR(ENOMEM);
2071  memcpy(par->extradata, codec->extradata, codec->extradata_size);
2072  par->extradata_size = codec->extradata_size;
2073  }
2074 
2075  return 0;
2076 }
2077 
2079  const AVCodecParameters *par)
2080 {
2081  codec->codec_type = par->codec_type;
2082  codec->codec_id = par->codec_id;
2083  codec->codec_tag = par->codec_tag;
2084 
2085  codec->bit_rate = par->bit_rate;
2088  codec->profile = par->profile;
2089  codec->level = par->level;
2090 
2091  switch (par->codec_type) {
2092  case AVMEDIA_TYPE_VIDEO:
2093  codec->pix_fmt = par->format;
2094  codec->width = par->width;
2095  codec->height = par->height;
2096  codec->field_order = par->field_order;
2097  codec->color_range = par->color_range;
2098  codec->color_primaries = par->color_primaries;
2099  codec->color_trc = par->color_trc;
2100  codec->colorspace = par->color_space;
2103  codec->has_b_frames = par->video_delay;
2104  break;
2105  case AVMEDIA_TYPE_AUDIO:
2106  codec->sample_fmt = par->format;
2107  codec->channel_layout = par->channel_layout;
2108  codec->channels = par->channels;
2109  codec->sample_rate = par->sample_rate;
2110  codec->block_align = par->block_align;
2111  codec->frame_size = par->frame_size;
2112  codec->delay =
2113  codec->initial_padding = par->initial_padding;
2114  codec->trailing_padding = par->trailing_padding;
2115  codec->seek_preroll = par->seek_preroll;
2116  break;
2117  case AVMEDIA_TYPE_SUBTITLE:
2118  codec->width = par->width;
2119  codec->height = par->height;
2120  break;
2121  }
2122 
2123  if (par->extradata) {
2124  av_freep(&codec->extradata);
2126  if (!codec->extradata)
2127  return AVERROR(ENOMEM);
2128  memcpy(codec->extradata, par->extradata, par->extradata_size);
2129  codec->extradata_size = par->extradata_size;
2130  }
2131 
2132  return 0;
2133 }
2134 
2135 int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
2136  void **data, size_t *sei_size)
2137 {
2138  AVFrameSideData *side_data = NULL;
2139  uint8_t *sei_data;
2140 
2141  if (frame)
2142  side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
2143 
2144  if (!side_data) {
2145  *data = NULL;
2146  return 0;
2147  }
2148 
2149  *sei_size = side_data->size + 11;
2150  *data = av_mallocz(*sei_size + prefix_len);
2151  if (!*data)
2152  return AVERROR(ENOMEM);
2153  sei_data = (uint8_t*)*data + prefix_len;
2154 
2155  // country code
2156  sei_data[0] = 181;
2157  sei_data[1] = 0;
2158  sei_data[2] = 49;
2159 
2160  /**
2161  * 'GA94' is standard in North America for ATSC, but hard coding
2162  * this style may not be the right thing to do -- other formats
2163  * do exist. This information is not available in the side_data
2164  * so we are going with this right now.
2165  */
2166  AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
2167  sei_data[7] = 3;
2168  sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
2169  sei_data[9] = 0;
2170 
2171  memcpy(sei_data + 10, side_data->data, side_data->size);
2172 
2173  sei_data[side_data->size+10] = 255;
2174 
2175  return 0;
2176 }
2177 
2179 {
2180  AVRational framerate = avctx->framerate;
2181  int bits_per_coded_sample = avctx->bits_per_coded_sample;
2182  int64_t bitrate;
2183 
2184  if (!(framerate.num && framerate.den))
2185  framerate = av_inv_q(avctx->time_base);
2186  if (!(framerate.num && framerate.den))
2187  return 0;
2188 
2189  if (!bits_per_coded_sample) {
2191  bits_per_coded_sample = av_get_bits_per_pixel(desc);
2192  }
2193  bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2194  framerate.num / framerate.den;
2195 
2196  return bitrate;
2197 }
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:2178
#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:2581
packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
Definition: pixfmt.h:77
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:3974
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:3098
#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:1299
const struct AVCodec * codec
Definition: avcodec.h:1527
planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:162
AVRational framerate
Definition: avcodec.h:3040
enum AVFieldOrder field_order
Video only.
Definition: avcodec.h:3965
static int64_t get_bit_rate(AVCodecContext *ctx)
Definition: utils.c:490
const AVCodecDescriptor * codec_descriptor
AVCodecDescriptor.
Definition: avcodec.h:3061
planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
Definition: pixfmt.h:271
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:248
enum AVColorTransferCharacteristic color_trc
Definition: avcodec.h:3972
Number of sample formats. DO NOT USE if linking dynamically.
Definition: samplefmt.h:74
#define AV_NUM_DATA_POINTERS
Definition: frame.h:219
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:241
#define FF_SUB_CHARENC_MODE_AUTOMATIC
libavcodec will select the mode itself
Definition: avcodec.h:3097
static AVMutex mutex
Definition: log.c:44
int64_t pts_correction_num_faulty_dts
Number of incorrect PTS values so far.
Definition: avcodec.h:3078
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:2384
This structure describes decoded (raw) audio or video data.
Definition: frame.h:218
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
Definition: allcodecs.c:861
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:101
planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:245
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:155
const struct AVCodecHWConfigInternal ** hw_configs
Array of pointers to hardware configurations supported by the codec, or NULL if no hardware supported...
Definition: avcodec.h:3549
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:1705
const char * fmt
Definition: avisynth_c.h:769
AVPacket * last_pkt_props
Properties (timestamps+side data) extracted from the last packet passed for decoding.
Definition: internal.h:172
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:67
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:1568
AVFrame * to_free
Definition: internal.h:159
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:64
const char * g
Definition: vf_curves.c:112
const char * desc
Definition: nvenc.c:65
#define LIBAVCODEC_VERSION_MICRO
Definition: version.h:32
planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:158
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:2336
AVRational sample_aspect_ratio
Video only.
Definition: avcodec.h:3960
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:2419
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:246
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:1298
const char * avcodec_configuration(void)
Return the libavcodec build-time configuration.
Definition: utils.c:1402
uint32_t fourcc
Definition: vaapi_decode.c:236
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:2148
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: avcodec.h:3884
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:164
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:3096
static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
Definition: utils.c:514
const char * b
Definition: vf_curves.c:113
const char * avcodec_license(void)
Return the libavcodec license.
Definition: utils.c:1407
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:1896
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition: pixfmt.h:185
double, planar
Definition: samplefmt.h:70
enum AVMediaType codec_type
Definition: rtp.c:37
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1727
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:3864
int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec)
Definition: utils.c:486
void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
Same behaviour av_fast_malloc but the buffer has additional AV_INPUT_BUFFER_PADDING_SIZE at the end w...
Definition: utils.c:70
planar GBR 4:4:4 36bpp, little-endian
Definition: pixfmt.h:251
The following 12 formats have the disadvantage of needing 1 format for each bit depth.
Definition: pixfmt.h:152
#define AV_CODEC_CAP_EXPERIMENTAL
Codec is experimental and is thus avoided in favor of non experimental encoders.
Definition: avcodec.h:1007
mpegvideo header.
enum AVMediaType type
Definition: avcodec.h:3421
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:236
AVBufferPool * pools[4]
Pools for each data plane.
Definition: internal.h:105
int(* decode)(AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt)
Definition: avcodec.h:3506
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:2741
enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
Wrapper around get_format() for frame-multithreaded codecs.
Definition: utils.c:1808
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:1770
int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
Converts AVChromaLocation to swscale x/y chroma position.
Definition: utils.c:349
#define AV_CODEC_CAP_AUTO_THREADS
Codec supports avctx->thread_count == 0 (auto).
Definition: avcodec.h:1027
const struct AVHWAccel * hwaccel
Hardware accelerator in use.
Definition: avcodec.h:2674
int trailing_padding
Audio only.
Definition: avcodec.h:4020
#define src
Definition: vp8dsp.c:254
int profile
profile
Definition: avcodec.h:2843
planar GBR 4:4:4 36bpp, big-endian
Definition: pixfmt.h:250
AVCodec.
Definition: avcodec.h:3408
planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:127
int block_align
number of bytes per packet if constant and known or 0 Used by some WAV based audio codecs...
Definition: avcodec.h:2210
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:3876
AVLockOp
Lock operation used by lockmgr.
Definition: avcodec.h:6047
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:3848
enum AVColorSpace color_space
Definition: avcodec.h:3973
const char * av_color_space_name(enum AVColorSpace space)
Definition: pixdesc.c:2767
Macro definitions for various function/variable attributes.
void ff_decode_bsfs_uninit(AVCodecContext *avctx)
Definition: decode.c:1972
int frame_size
Audio only.
Definition: avcodec.h:4005
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:1640
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:732
AVSubtitleRect ** rects
Definition: avcodec.h:3865
int av_codec_is_decoder(const AVCodec *codec)
Definition: utils.c:99
void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
Definition: utils.c:1851
int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels, enum AVSampleFormat sample_fmt, const uint8_t *buf, int buf_size, int align)
Fill AVFrame audio data and linesize pointers.
Definition: utils.c:372
int av_codec_is_encoder(const AVCodec *codec)
Definition: utils.c:94
uint64_t vbv_delay
The delay between the time the packet this structure is associated with is received and the time when...
Definition: avcodec.h:1129
planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), little-endian ...
Definition: pixfmt.h:175
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
Modify width and height values so that they will result in a memory buffer that is acceptable for the...
Definition: utils.c:334
#define FF_LEVEL_UNKNOWN
Definition: avcodec.h:2954
#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:212
Public dictionary API.
planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
Definition: pixfmt.h:186
static double cb(void *priv, double x, double y)
Definition: vf_geq.c:112
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
Definition: internal.h:40
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:97
void av_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
Definition: avpacket.c:62
enum AVSampleFormat sample_fmt
audio sample format
Definition: avcodec.h:2181
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:3950
8 bits with AV_PIX_FMT_RGB32 palette
Definition: pixfmt.h:73
AVOptions.
AVCodecParameters * avcodec_parameters_alloc(void)
Allocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0).
Definition: utils.c:1982
#define f(width, name)
Definition: cbs_vp9.c:255
const char * av_color_range_name(enum AVColorRange range)
Definition: pixdesc.c:2710
void * thread_ctx
Definition: internal.h:163
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
int ff_side_data_update_matrix_encoding(AVFrame *frame, enum AVMatrixEncoding matrix_encoding)
Add or update AV_FRAME_DATA_MATRIXENCODING side data.
Definition: utils.c:134
int trailing_padding
Audio only.
Definition: avcodec.h:3219
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:441
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:247
#define FF_CODEC_PROPERTY_LOSSLESS
Definition: avcodec.h:3163
#define LIBAVCODEC_VERSION_INT
Definition: version.h:34
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1618
#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:2078
static AVFrame * frame
planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition: pixfmt.h:187
AVCPBProperties * ff_add_cpb_side_data(AVCodecContext *avctx)
Add a CPB properties side data to an encoding context.
Definition: utils.c:1936
Public header for CRC hash function implementation.
void * frame_thread_encoder
Definition: internal.h:180
int initial_padding
Audio only.
Definition: avcodec.h:4013
Structure to hold side data for an AVFrame.
Definition: frame.h:180
int av_image_check_sar(unsigned int w, unsigned int h, AVRational sar)
Check if the given sample aspect ratio of an image is valid.
Definition: imgutils.c:287
int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Call avcodec_open2 recursively by decrementing counter, unlocking mutex, calling the function and the...
Definition: utils.c:526
planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), big-endian
Definition: pixfmt.h:272
planar GBR 4:4:4 48bpp, big-endian
Definition: pixfmt.h:170
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:96
uint32_t tag
Definition: movenc.c:1455
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:75
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:190
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
uint8_t * data
Definition: avcodec.h:1374
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:1513
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
Definition: avcodec.h:2749
int av_codec_get_max_lowres(const AVCodec *codec)
Definition: utils.c:480
enum AVSampleFormat av_get_planar_sample_fmt(enum AVSampleFormat sample_fmt)
Get the planar alternative form of the given sample format.
Definition: samplefmt.c:84
int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
Return the index into tab at which {a,b} match elements {[0],[1]} of tab.
Definition: utils.c:1740
ptrdiff_t size
Definition: opengl_enc.c:101
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
Definition: rational.c:35
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
Definition: avcodec.h:2734
#define flags(name, subs,...)
Definition: cbs_h2645.c:263
planar YUV 4:4:0,24bpp, (1 Cr & Cb sample per 1x2 Y samples), big-endian
Definition: pixfmt.h:274
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:861
signed 32 bits
Definition: samplefmt.h:62
void * av_realloc_array(void *ptr, size_t nmemb, size_t size)
Definition: mem.c:198
AVCPBProperties * av_cpb_properties_alloc(size_t *size)
Allocate a CPB properties structure and initialize its fields to default values.
Definition: utils.c:1922
enum AVChromaLocation chroma_sample_location
This defines the location of chroma samples.
Definition: avcodec.h:2155
static void codec_parameters_reset(AVCodecParameters *par)
Definition: utils.c:1962
#define FFALIGN(x, a)
Definition: macros.h:48
uint64_t channel_layout
Audio only.
Definition: avcodec.h:3986
#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:3913
#define FF_COMPLIANCE_UNOFFICIAL
Allow unofficial extensions.
Definition: avcodec.h:2580
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:1764
planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:153
int(* send_frame)(AVCodecContext *avctx, const AVFrame *frame)
Encode API with decoupled packet/frame dataflow.
Definition: avcodec.h:3516
Libavcodec version macros.
int(* close)(AVCodecContext *)
Definition: avcodec.h:3507
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:1061
enum AVCodecID id
Definition: avcodec.h:3422
const uint64_t * channel_layouts
array of support channel layouts, or NULL if unknown. array is terminated by 0
Definition: avcodec.h:3432
planar GBR 4:4:4 27bpp, big-endian
Definition: pixfmt.h:166
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:161
const char * av_chroma_location_name(enum AVChromaLocation location)
Definition: pixdesc.c:2786
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:172
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: avcodec.h:215
unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
Definition: utils.c:475
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Copy the contents of src to dst.
Definition: utils.c:2003
int width
Definition: frame.h:276
#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:1807
int av_get_bits_per_sample(enum AVCodecID codec_id)
Return codec bits per sample.
Definition: utils.c:1495
#define AVMutex
Definition: thread.h:151
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
#define MAKE_ACCESSORS(str, name, type, field)
Definition: internal.h:91
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:132
#define AVERROR(e)
Definition: error.h:43
unsigned int avpriv_toupper4(unsigned int x)
Definition: utils.c:1776
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:202
int qmax
maximum quantizer
Definition: avcodec.h:2362
int64_t pts_correction_last_pts
Number of incorrect DTS values so far.
Definition: avcodec.h:3079
int active_thread_type
Which multithreading methods are in use by the codec.
Definition: avcodec.h:2788
enum AVColorPrimaries color_primaries
Definition: avcodec.h:3971
int avcodec_is_open(AVCodecContext *s)
Definition: utils.c:1861
int video_delay
Video only.
Definition: avcodec.h:3979
const char * r
Definition: vf_curves.c:111
int av_match_list(const char *name, const char *list, char separator)
Check if a name is in a list.
Definition: avstring.c:442
AVFrame * buffer_frame
Definition: internal.h:202
int capabilities
Codec capabilities.
Definition: avcodec.h:3427
int initial_padding
Audio only.
Definition: avcodec.h:3031
#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:1719
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:552
#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:178
enum AVMediaType codec_type
General type of the encoded data.
Definition: avcodec.h:3880
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:157
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:1598
uint16_t width
Definition: gdv.c:47
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:244
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:1376
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:3415
planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:130
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:3227
const struct AVProfile * profiles
If non-NULL, an array of profiles recognized for this codec.
Definition: avcodec.h:726
GLsizei count
Definition: opengl_enc.c:109
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), little-endian
Definition: pixfmt.h:179
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:1992
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:1709
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:2729
reference-counted frame API
const AVCodecDescriptor * avcodec_descriptor_get(enum AVCodecID id)
Definition: codec_desc.c:3135
uint64_t channel_layout
Audio channel layout.
Definition: avcodec.h:2224
int extradata_size
Size of the extradata content in bytes.
Definition: avcodec.h:3902
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
Definition: pixfmt.h:180
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:66
int rc_buffer_size
decoder bitstream buffer size
Definition: avcodec.h:2376
int props
Codec properties, a combination of AV_CODEC_PROP_* flags.
Definition: avcodec.h:715
int(* encode_sub)(AVCodecContext *, uint8_t *buf, int buf_size, const struct AVSubtitle *sub)
Definition: avcodec.h:3492
int ff_frame_thread_encoder_init(AVCodecContext *avctx, AVDictionary *options)
common internal API header
#define FF_MAX_EXTRADATA_SIZE
Maximum size in bytes of extradata.
Definition: internal.h:245
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:106
int refs
number of reference frames
Definition: avcodec.h:2101
planar GBR 4:4:4:4 48bpp, big-endian
Definition: pixfmt.h:283
int block_align
Audio only.
Definition: avcodec.h:4001
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
#define AV_MUTEX_INITIALIZER
Definition: thread.h:152
audio channel layout utility functions
enum AVPixelFormat * pix_fmts
array of supported pixel formats, or NULL if unknown, array is terminated by -1
Definition: avcodec.h:3429
#define FF_THREAD_FRAME
Decode more than one frame at once.
Definition: avcodec.h:2780
#define FFMIN(a, b)
Definition: common.h:96
AVPacketSideData * coded_side_data
Additional data associated with the entire coded stream.
Definition: avcodec.h:3172
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:74
int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
Return codec bits per sample.
Definition: utils.c:1413
AVFrame * compat_decode_frame
Definition: internal.h:213
void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
Definition: utils.c:1855
int width
picture width / height.
Definition: avcodec.h:1690
static void ff_unlock_avcodec(const AVCodec *codec)
Definition: utils.c:520
AVBufferRef * hw_frames_ctx
A reference to the AVHWFramesContext describing the input (for encoding) or output (decoding) frames...
Definition: avcodec.h:3197
#define FF_PROFILE_UNKNOWN
Definition: avcodec.h:2844
int priv_data_size
Definition: avcodec.h:3456
int profile
Definition: avcodec.h:3342
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:849
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:2127
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:184
packed YUV 4:2:2, 16bpp, Y0 Cr Y1 Cb
Definition: pixfmt.h:206
#define s(width, name)
Definition: cbs_vp9.c:257
int level
level
Definition: avcodec.h:2953
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:1825
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), big-endian
Definition: pixfmt.h:176
const AVProfile * profiles
array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN} ...
Definition: avcodec.h:3435
int n
Definition: avisynth_c.h:684
static int av_bprint_is_complete(const AVBPrint *buf)
Test if the print buffer is complete (not truncated).
Definition: bprint.h:185
unsigned 8 bits, planar
Definition: samplefmt.h:66
int ticks_per_frame
For some codecs, the time base is closer to the field rate than the frame rate.
Definition: avcodec.h:1649
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:65
planar YUV 4:2:0,18bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:239
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:154
enum AVCodecID codec_id
Definition: vaapi_decode.c:362
enum AVColorRange color_range
Video only.
Definition: avcodec.h:3970
Usually treated as AVMEDIA_TYPE_DATA.
Definition: avutil.h:200
Opaque data information usually sparse.
Definition: avutil.h:205
const char * av_get_colorspace_name(enum AVColorSpace val)
Get the name of a colorspace.
Definition: frame.c:122
DecodeSimpleContext ds
Definition: internal.h:165
enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags, unsigned int fourcc)
Definition: utils.c:457
char * sub_charenc
DTS of the last frame.
Definition: avcodec.h:3087
planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:163
uint8_t * data[4]
data+linesize for the bitmap of this subtitle.
Definition: avcodec.h:3843
#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:1127
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:2769
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:503
int sub_charenc_mode
Subtitles character encoding mode.
Definition: avcodec.h:3095
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:284
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:291
const AVS_VideoInfo int align
Definition: avisynth_c.h:795
AVBufferRef * progress
Definition: thread.h:39
const char * av_get_profile_name(const AVCodec *codec, int profile)
Return a name for the specified profile, if available.
Definition: utils.c:1362
int frame_size
Number of samples per channel in an audio frame.
Definition: avcodec.h:2193
This structure describes the bitrate properties of an encoded bitstream.
Definition: avcodec.h:1099
packed RGB 3:3:2, 8bpp, (msb)2B 3G 3R(lsb)
Definition: pixfmt.h:79
planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:128
int frame_size
Definition: mxfenc.c:2117
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:1759
Libavcodec external API header.
enum AVMediaType codec_type
Definition: avcodec.h:1526
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:1473
enum AVCodecID codec_id
Definition: avcodec.h:1528
int seek_preroll
Number of samples to skip after a discontinuity.
Definition: avcodec.h:3120
int av_opt_set_dict(void *obj, AVDictionary **options)
Set all the options from a given dictionary on an object.
Definition: opt.c:1596
int sample_rate
samples per second
Definition: avcodec.h:2173
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:249
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:173
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
const AVCodecHWConfig * avcodec_get_hw_config(const AVCodec *codec, int index)
Retrieve supported hardware configurations for a codec.
Definition: utils.c:1747
planar GBR 4:4:4 30bpp, big-endian
Definition: pixfmt.h:168
main external API structure.
Definition: avcodec.h:1518
AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
Definition: allcodecs.c:866
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:188
uint8_t * data
The data buffer.
Definition: buffer.h:89
int qmin
minimum quantizer
Definition: avcodec.h:2355
uint8_t pi<< 24) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_U8,(uint64_t)((*(constuint8_t *) pi-0x80U))<< 56) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S16,(uint64_t)(*(constint16_t *) pi)<< 48) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S32,(uint64_t)(*(constint32_t *) pi)<< 32) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S64,(*(constint64_t *) pi >>56)+0x80) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S64,*(constint64_t *) pi *(1.0f/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64,*(constint64_t *) pi *(1.0/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(constfloat *) pi *(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(constdouble *) pi *(INT64_C(1)<< 63)))#defineFMT_PAIR_FUNC(out, in) staticconv_func_type *constfmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB *AV_SAMPLE_FMT_NB]={FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64),};staticvoidcpy1(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, len);}staticvoidcpy2(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 2 *len);}staticvoidcpy4(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 4 *len);}staticvoidcpy8(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 8 *len);}AudioConvert *swri_audio_convert_alloc(enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, constint *ch_map, intflags){AudioConvert *ctx;conv_func_type *f=fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt)+AV_SAMPLE_FMT_NB *av_get_packed_sample_fmt(in_fmt)];if(!f) returnNULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) returnNULL;if(channels==1){in_fmt=av_get_planar_sample_fmt(in_fmt);out_fmt=av_get_planar_sample_fmt(out_fmt);}ctx->channels=channels;ctx->conv_f=f;ctx->ch_map=ch_map;if(in_fmt==AV_SAMPLE_FMT_U8||in_fmt==AV_SAMPLE_FMT_U8P) memset(ctx->silence, 0x80, sizeof(ctx->silence));if(out_fmt==in_fmt &&!ch_map){switch(av_get_bytes_per_sample(in_fmt)){case1:ctx->simd_f=cpy1;break;case2:ctx->simd_f=cpy2;break;case4:ctx->simd_f=cpy4;break;case8:ctx->simd_f=cpy8;break;}}if(HAVE_X86ASM &&1) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);returnctx;}voidswri_audio_convert_free(AudioConvert **ctx){av_freep(ctx);}intswri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, intlen){intch;intoff=0;constintos=(out->planar?1:out->ch_count)*out->bps;unsignedmisaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask){intplanes=in->planar?in->ch_count:1;unsignedm=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;}if(ctx->out_simd_align_mask){intplanes=out->planar?out->ch_count:1;unsignedm=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;}if(ctx->simd_f &&!ctx->ch_map &&!misaligned){off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){if(out->planar==in->planar){intplanes=out->planar?out->ch_count:1;for(ch=0;ch< planes;ch++){ctx->simd_f(out-> ch const uint8_t **in ch off *out planar
Definition: audioconvert.c:56
void avsubtitle_free(AVSubtitle *sub)
Free all allocated data in the given subtitle struct.
Definition: utils.c:1042
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
Definition: avcodec.h:1543
packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
Definition: pixfmt.h:63
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
Definition: decode.c:1891
static void encode(AVCodecContext *ctx, AVFrame *frame, AVPacket *pkt, FILE *output)
Definition: encode_audio.c:95
uint8_t * data
Definition: frame.h:182
planar YUV 4:4:0,24bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
Definition: pixfmt.h:273
#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:758
planar GBR 4:4:4 42bpp, little-endian
Definition: pixfmt.h:253
void * buf
Definition: avisynth_c.h:690
int extradata_size
Definition: avcodec.h:1619
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
Encode extradata length to a buffer.
Definition: utils.c:1726
int nb_coded_side_data
Definition: avcodec.h:3173
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:68
planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
Definition: pixfmt.h:189
AVCodecContext * owner[2]
Definition: thread.h:36
int coded_height
Definition: avcodec.h:1705
Describe the class of an AVClass context structure.
Definition: log.h:67
#define FF_CODEC_PROPERTY_CLOSED_CAPTIONS
Definition: avcodec.h:3164
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition: pixfmt.h:191
AVFrameSideData * av_frame_new_side_data(AVFrame *frame, enum AVFrameSideDataType type, int size)
Add a new side data to a frame.
Definition: frame.c:720
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:93
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:2141
Rational number (pair of numerator and denominator).
Definition: rational.h:58
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:2134
void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
Wrapper around release_buffer() frame-for multithreaded codecs.
Definition: utils.c:1819
const char * name
short name for the profile
Definition: avcodec.h:3343
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:2021
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:240
int(* func)(AVBPrint *dst, const char *in, const char *arg)
Definition: jacosubdec.c:67
size_t av_strlcatf(char *dst, size_t size, const char *fmt,...)
Definition: avstring.c:101
planar GBR 4:4:4 42bpp, big-endian
Definition: pixfmt.h:252
char * codec_whitelist
',' separated list of allowed decoders.
Definition: avcodec.h:3155
planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), big-endian
Definition: pixfmt.h:174
const VDPAUPixFmtMap * map
#define STRIDE_ALIGN
Definition: internal.h:97
const char * name
Name of the codec described by this descriptor.
Definition: avcodec.h:707
int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Initialize the AVCodecContext to use the given AVCodec.
Definition: utils.c:538
#define snprintf
Definition: snprintf.h:34
int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
Return audio frame duration.
Definition: utils.c:1700
size_t av_strlcat(char *dst, const char *src, size_t size)
Append the string src to the string dst, but to a total length of no more than size - 1 bytes...
Definition: avstring.c:93
mfxU16 profile
Definition: qsvenc.c:44
int seek_preroll
Audio only.
Definition: avcodec.h:4024
This struct describes the properties of a single codec described by an AVCodecID. ...
Definition: avcodec.h:699
int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
Finalize buf into extradata and set its size appropriately.
Definition: utils.c:1866
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:551
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:183
int bits_per_raw_sample
This is the number of valid bits in each output sample.
Definition: avcodec.h:3939
const AVClass * priv_class
AVClass for the private context.
Definition: avcodec.h:3434
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:232
planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:159
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:131
int av_get_bytes_per_sample(enum AVSampleFormat sample_fmt)
Return number of bytes per sample.
Definition: samplefmt.c:106
static struct @282 state
void ff_color_frame(AVFrame *frame, const int c[4])
Definition: utils.c:408
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
Definition: rational.h:159
int sample_rate
Audio only.
Definition: avcodec.h:3994
enum AVMediaType type
Definition: avcodec.h:701
uint8_t max_lowres
maximum value for lowres supported by the decoder
Definition: avcodec.h:3433
AVPacket * buffer_pkt
buffers for using new encode/decode API through legacy API
Definition: internal.h:200
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:62
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:243
Y , 8bpp.
Definition: pixfmt.h:70
void av_opt_free(void *obj)
Free all allocated objects in obj.
Definition: opt.c:1551
const OptionDef options[]
Definition: ffmpeg_opt.c:3294
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:84
common internal api header.
enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
Converts swscale x/y chroma position to AVChromaLocation.
Definition: utils.c:361
if(ret< 0)
Definition: vf_mcdeint.c:279
#define FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM
The decoder extracts and fills its parameters even if the frame is skipped due to the skip_frame sett...
Definition: internal.h:60
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:211
signed 16 bits
Definition: samplefmt.h:61
planar GBR 4:4:4 27bpp, little-endian
Definition: pixfmt.h:167
static double c[64]
int profile
Codec-specific bitstream restrictions that the stream conforms to.
Definition: avcodec.h:3944
const char * av_color_transfer_name(enum AVColorTransferCharacteristic transfer)
Definition: pixdesc.c:2748
int(* uninit)(AVCodecContext *avctx)
Uninitialize the hwaccel private data.
Definition: avcodec.h:3714
void * hwaccel_priv_data
hwaccel-specific private data
Definition: internal.h:190
void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
Same behaviour av_fast_padded_malloc except that buffer will always be 0-initialized after call...
Definition: utils.c:82
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
AVProfile.
Definition: avcodec.h:3341
planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:129
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:76
int ff_thread_can_start_frame(AVCodecContext *avctx)
Definition: utils.c:1837
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:2760
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:1829
packed RGB 3:3:2, 8bpp, (msb)2R 3G 3B(lsb)
Definition: pixfmt.h:82
static const uint64_t c2
Definition: murmur3.c:50
#define AV_PIX_FMT_RGB555
Definition: pixfmt.h:360
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:69
int caps_internal
Internal codec capabilities.
Definition: avcodec.h:3534
unsigned properties
Properties of the stream that gets decoded.
Definition: avcodec.h:3162
int den
Denominator.
Definition: rational.h:60
int avcodec_default_execute2(AVCodecContext *c, int(*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
Definition: utils.c:444
int av_image_check_size2(unsigned int w, unsigned int h, int64_t max_pixels, enum AVPixelFormat pix_fmt, int log_offset, void *log_ctx)
Check if the given dimension of an image is valid, meaning that all bytes of a plane of an image with...
Definition: imgutils.c:253
unsigned bps
Definition: movenc.c:1456
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition: pixfmt.h:181
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
Definition: avcodec.h:773
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
Definition: utils.c:1167
#define AV_CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:853
static int lowres
Definition: ffplay.c:331
void * priv_data
Definition: avcodec.h:1545
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:1147
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:3147
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:85
#define TAG_PRINT(x)
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:249
as in Berlin toast format
Definition: avcodec.h:569
int len
int channels
number of audio channels
Definition: avcodec.h:2174
const int * supported_samplerates
array of supported audio samplerates, or NULL if unknown, array is terminated by 0 ...
Definition: avcodec.h:3430
struct AVCodecInternal * internal
Private context used for internal data.
Definition: avcodec.h:1553
unsigned avcodec_version(void)
Return the LIBAVCODEC_VERSION_INT constant.
Definition: utils.c:1390
Y , 16bpp, little-endian.
Definition: pixfmt.h:94
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:3855
This side data corresponds to the AVCPBProperties struct.
Definition: avcodec.h:1248
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:254
Not part of ABI.
Definition: pixfmt.h:530
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:3926
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: avcodec.h:3898
static const struct twinvq_data tab
unsigned int byte_buffer_size
Definition: internal.h:178
int channels
Audio only.
Definition: avcodec.h:3990
void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
Wait for earlier decoding threads to finish reference pictures.
Definition: utils.c:1833
planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
Definition: pixfmt.h:182
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:3080
int frame_number
Frame counter, set by libavcodec.
Definition: avcodec.h:2204
int height
Definition: frame.h:276
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:3077
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:95
enum AVFieldOrder field_order
Field order.
Definition: avcodec.h:2170
signed 16 bits, planar
Definition: samplefmt.h:67
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:522
int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
Definition: utils.c:1784
planar GBR 4:4:4 48bpp, little-endian
Definition: pixfmt.h:171
enum AVSampleFormat * sample_fmts
array of supported sample formats, or NULL if unknown, array is terminated by -1
Definition: avcodec.h:3431
AVMatrixEncoding
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
Definition: utils.c:1813
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
Definition: avcodec.h:3888
int ff_alloc_entries(AVCodecContext *avctx, int count)
Definition: utils.c:1842
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:2135
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:2300
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), little-endian
Definition: pixfmt.h:177
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:1889
void ff_reset_entries(AVCodecContext *avctx)
Definition: utils.c:1847
int(* init)(AVCodecContext *)
Definition: avcodec.h:3491
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:265
#define MKTAG(a, b, c, d)
Definition: common.h:366
planar GBRA 4:4:4:4 64bpp, little-endian
Definition: pixfmt.h:213
AVBufferRef * hw_device_ctx
A reference to the AVHWDeviceContext describing the device which will be used by a hardware encoder/d...
Definition: avcodec.h:3249
packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3
Definition: pixfmt.h:78
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:60
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:1375
int(* encode2)(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
Encode data to an AVPacket.
Definition: avcodec.h:3504
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:1673
int nb_samples
number of audio samples (per channel) described by this frame
Definition: frame.h:284
#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:2576
planar YUV 4:2:0,18bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:238
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:160
enum AVPixelFormat sw_pix_fmt
Nominal unaccelerated pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:3047
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:242
#define FFMAX3(a, b, c)
Definition: common.h:95
planar GBR 4:4:4 30bpp, little-endian
Definition: pixfmt.h:169
int avcodec_default_execute(AVCodecContext *c, int(*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
Definition: utils.c:431
#define AV_WL32(p, v)
Definition: intreadwrite.h:426
int64_t rc_max_rate
maximum bitrate
Definition: avcodec.h:2391
uint8_t pi<< 24) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_U8,(uint64_t)((*(constuint8_t *) pi-0x80U))<< 56) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S16,(uint64_t)(*(constint16_t *) pi)<< 48) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S32,(uint64_t)(*(constint32_t *) pi)<< 32) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S64,(*(constint64_t *) pi >>56)+0x80) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S64,*(constint64_t *) pi *(1.0f/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64,*(constint64_t *) pi *(1.0/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(constfloat *) pi *(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(constdouble *) pi *(INT64_C(1)<< 63)))#defineFMT_PAIR_FUNC(out, in) staticconv_func_type *constfmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB *AV_SAMPLE_FMT_NB]={FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64),};staticvoidcpy1(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, len);}staticvoidcpy2(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 2 *len);}staticvoidcpy4(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 4 *len);}staticvoidcpy8(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 8 *len);}AudioConvert *swri_audio_convert_alloc(enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, constint *ch_map, intflags){AudioConvert *ctx;conv_func_type *f=fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt)+AV_SAMPLE_FMT_NB *av_get_packed_sample_fmt(in_fmt)];if(!f) returnNULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) returnNULL;if(channels==1){in_fmt=av_get_planar_sample_fmt(in_fmt);out_fmt=av_get_planar_sample_fmt(out_fmt);}ctx->channels=channels;ctx->conv_f=f;ctx->ch_map=ch_map;if(in_fmt==AV_SAMPLE_FMT_U8||in_fmt==AV_SAMPLE_FMT_U8P) memset(ctx->silence, 0x80, sizeof(ctx->silence));if(out_fmt==in_fmt &&!ch_map){switch(av_get_bytes_per_sample(in_fmt)){case1:ctx->simd_f=cpy1;break;case2:ctx->simd_f=cpy2;break;case4:ctx->simd_f=cpy4;break;case8:ctx->simd_f=cpy8;break;}}if(HAVE_X86ASM &&1) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);returnctx;}voidswri_audio_convert_free(AudioConvert **ctx){av_freep(ctx);}intswri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, intlen){intch;intoff=0;constintos=(out->planar?1:out->ch_count)*out->bps;unsignedmisaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask){intplanes=in->planar?in->ch_count:1;unsignedm=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;}if(ctx->out_simd_align_mask){intplanes=out->planar?out->ch_count:1;unsignedm=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;}if(ctx->simd_f &&!ctx->ch_map &&!misaligned){off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){if(out->planar==in->planar){intplanes=out->planar?out->ch_count:1;for(ch=0;ch< planes;ch++){ctx->simd_f(out-> ch ch
Definition: audioconvert.c:56
void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.c:191
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
uint8_t * subtitle_header
Header containing style information for text subtitles.
Definition: avcodec.h:2985
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:156
int(* receive_frame)(AVCodecContext *avctx, AVFrame *frame)
Decode API with decoupled packet/frame dataflow.
Definition: avcodec.h:3524