FFmpeg
utils.c
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1 /*
2  * utils for libavcodec
3  * Copyright (c) 2001 Fabrice Bellard
4  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 /**
24  * @file
25  * utils.
26  */
27 
28 #include "config.h"
29 #include "libavutil/attributes.h"
30 #include "libavutil/avassert.h"
31 #include "libavutil/avstring.h"
32 #include "libavutil/bprint.h"
34 #include "libavutil/crc.h"
35 #include "libavutil/frame.h"
36 #include "libavutil/hwcontext.h"
37 #include "libavutil/internal.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/mem_internal.h"
40 #include "libavutil/pixdesc.h"
41 #include "libavutil/imgutils.h"
42 #include "libavutil/samplefmt.h"
43 #include "libavutil/dict.h"
44 #include "libavutil/thread.h"
45 #include "avcodec.h"
46 #include "decode.h"
47 #include "hwconfig.h"
48 #include "libavutil/opt.h"
49 #include "mpegvideo.h"
50 #include "thread.h"
51 #include "frame_thread_encoder.h"
52 #include "internal.h"
53 #include "packet_internal.h"
54 #include "put_bits.h"
55 #include "raw.h"
56 #include "bytestream.h"
57 #include "version.h"
58 #include <stdlib.h>
59 #include <stdarg.h>
60 #include <stdatomic.h>
61 #include <limits.h>
62 #include <float.h>
63 #if CONFIG_ICONV
64 # include <iconv.h>
65 #endif
66 
67 #include "libavutil/ffversion.h"
68 const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
69 
71 
72 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
73 {
74  uint8_t **p = ptr;
75  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
76  av_freep(p);
77  *size = 0;
78  return;
79  }
80  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
81  memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
82 }
83 
84 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
85 {
86  uint8_t **p = ptr;
87  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
88  av_freep(p);
89  *size = 0;
90  return;
91  }
92  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
93  memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
94 }
95 
96 int av_codec_is_encoder(const AVCodec *codec)
97 {
98  return codec && (codec->encode_sub || codec->encode2 || codec->receive_packet);
99 }
100 
101 int av_codec_is_decoder(const AVCodec *codec)
102 {
103  return codec && (codec->decode || codec->receive_frame);
104 }
105 
107 {
108  int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
109 
110  if (ret < 0)
111  width = height = 0;
112 
113  s->coded_width = width;
114  s->coded_height = height;
115  s->width = AV_CEIL_RSHIFT(width, s->lowres);
116  s->height = AV_CEIL_RSHIFT(height, s->lowres);
117 
118  return ret;
119 }
120 
122 {
123  int ret = av_image_check_sar(avctx->width, avctx->height, sar);
124 
125  if (ret < 0) {
126  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
127  sar.num, sar.den);
128  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
129  return ret;
130  } else {
131  avctx->sample_aspect_ratio = sar;
132  }
133  return 0;
134 }
135 
137  enum AVMatrixEncoding matrix_encoding)
138 {
139  AVFrameSideData *side_data;
140  enum AVMatrixEncoding *data;
141 
143  if (!side_data)
145  sizeof(enum AVMatrixEncoding));
146 
147  if (!side_data)
148  return AVERROR(ENOMEM);
149 
150  data = (enum AVMatrixEncoding*)side_data->data;
151  *data = matrix_encoding;
152 
153  return 0;
154 }
155 
157  int linesize_align[AV_NUM_DATA_POINTERS])
158 {
159  int i;
160  int w_align = 1;
161  int h_align = 1;
163 
164  if (desc) {
165  w_align = 1 << desc->log2_chroma_w;
166  h_align = 1 << desc->log2_chroma_h;
167  }
168 
169  switch (s->pix_fmt) {
170  case AV_PIX_FMT_YUV420P:
171  case AV_PIX_FMT_YUYV422:
172  case AV_PIX_FMT_YVYU422:
173  case AV_PIX_FMT_UYVY422:
174  case AV_PIX_FMT_YUV422P:
175  case AV_PIX_FMT_YUV440P:
176  case AV_PIX_FMT_YUV444P:
177  case AV_PIX_FMT_GBRP:
178  case AV_PIX_FMT_GBRAP:
179  case AV_PIX_FMT_GRAY8:
180  case AV_PIX_FMT_GRAY16BE:
181  case AV_PIX_FMT_GRAY16LE:
182  case AV_PIX_FMT_YUVJ420P:
183  case AV_PIX_FMT_YUVJ422P:
184  case AV_PIX_FMT_YUVJ440P:
185  case AV_PIX_FMT_YUVJ444P:
186  case AV_PIX_FMT_YUVA420P:
187  case AV_PIX_FMT_YUVA422P:
188  case AV_PIX_FMT_YUVA444P:
245  case AV_PIX_FMT_GBRP9LE:
246  case AV_PIX_FMT_GBRP9BE:
247  case AV_PIX_FMT_GBRP10LE:
248  case AV_PIX_FMT_GBRP10BE:
249  case AV_PIX_FMT_GBRP12LE:
250  case AV_PIX_FMT_GBRP12BE:
251  case AV_PIX_FMT_GBRP14LE:
252  case AV_PIX_FMT_GBRP14BE:
253  case AV_PIX_FMT_GBRP16LE:
254  case AV_PIX_FMT_GBRP16BE:
259  w_align = 16; //FIXME assume 16 pixel per macroblock
260  h_align = 16 * 2; // interlaced needs 2 macroblocks height
261  break;
262  case AV_PIX_FMT_YUV411P:
263  case AV_PIX_FMT_YUVJ411P:
265  w_align = 32;
266  h_align = 16 * 2;
267  break;
268  case AV_PIX_FMT_YUV410P:
269  if (s->codec_id == AV_CODEC_ID_SVQ1) {
270  w_align = 64;
271  h_align = 64;
272  }
273  break;
274  case AV_PIX_FMT_RGB555:
275  if (s->codec_id == AV_CODEC_ID_RPZA) {
276  w_align = 4;
277  h_align = 4;
278  }
280  w_align = 8;
281  h_align = 8;
282  }
283  break;
284  case AV_PIX_FMT_PAL8:
285  case AV_PIX_FMT_BGR8:
286  case AV_PIX_FMT_RGB8:
287  if (s->codec_id == AV_CODEC_ID_SMC ||
289  w_align = 4;
290  h_align = 4;
291  }
292  if (s->codec_id == AV_CODEC_ID_JV ||
294  w_align = 8;
295  h_align = 8;
296  }
297  break;
298  case AV_PIX_FMT_BGR24:
299  if ((s->codec_id == AV_CODEC_ID_MSZH) ||
300  (s->codec_id == AV_CODEC_ID_ZLIB)) {
301  w_align = 4;
302  h_align = 4;
303  }
304  break;
305  case AV_PIX_FMT_RGB24:
306  if (s->codec_id == AV_CODEC_ID_CINEPAK) {
307  w_align = 4;
308  h_align = 4;
309  }
310  break;
311  default:
312  break;
313  }
314 
315  if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
316  w_align = FFMAX(w_align, 8);
317  }
318 
319  *width = FFALIGN(*width, w_align);
320  *height = FFALIGN(*height, h_align);
321  if (s->codec_id == AV_CODEC_ID_H264 || s->lowres ||
324  ) {
325  // some of the optimized chroma MC reads one line too much
326  // which is also done in mpeg decoders with lowres > 0
327  *height += 2;
328 
329  // H.264 uses edge emulation for out of frame motion vectors, for this
330  // it requires a temporary area large enough to hold a 21x21 block,
331  // increasing witdth ensure that the temporary area is large enough,
332  // the next rounded up width is 32
333  *width = FFMAX(*width, 32);
334  }
335 
336  for (i = 0; i < 4; i++)
337  linesize_align[i] = STRIDE_ALIGN;
338 }
339 
341 {
343  int chroma_shift = desc->log2_chroma_w;
344  int linesize_align[AV_NUM_DATA_POINTERS];
345  int align;
346 
347  avcodec_align_dimensions2(s, width, height, linesize_align);
348  align = FFMAX(linesize_align[0], linesize_align[3]);
349  linesize_align[1] <<= chroma_shift;
350  linesize_align[2] <<= chroma_shift;
351  align = FFMAX3(align, linesize_align[1], linesize_align[2]);
352  *width = FFALIGN(*width, align);
353 }
354 
355 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
356 {
357  if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
358  return AVERROR(EINVAL);
359  pos--;
360 
361  *xpos = (pos&1) * 128;
362  *ypos = ((pos>>1)^(pos<4)) * 128;
363 
364  return 0;
365 }
366 
368 {
369  int pos, xout, yout;
370 
371  for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
372  if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
373  return pos;
374  }
376 }
377 
379  enum AVSampleFormat sample_fmt, const uint8_t *buf,
380  int buf_size, int align)
381 {
382  int ch, planar, needed_size, ret = 0;
383 
384  needed_size = av_samples_get_buffer_size(NULL, nb_channels,
385  frame->nb_samples, sample_fmt,
386  align);
387  if (buf_size < needed_size)
388  return AVERROR(EINVAL);
389 
390  planar = av_sample_fmt_is_planar(sample_fmt);
391  if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
392  if (!(frame->extended_data = av_mallocz_array(nb_channels,
393  sizeof(*frame->extended_data))))
394  return AVERROR(ENOMEM);
395  } else {
396  frame->extended_data = frame->data;
397  }
398 
399  if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
400  (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
401  sample_fmt, align)) < 0) {
402  if (frame->extended_data != frame->data)
403  av_freep(&frame->extended_data);
404  return ret;
405  }
406  if (frame->extended_data != frame->data) {
407  for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
408  frame->data[ch] = frame->extended_data[ch];
409  }
410 
411  return ret;
412 }
413 
414 void ff_color_frame(AVFrame *frame, const int c[4])
415 {
417  int p, y;
418 
420 
421  for (p = 0; p<desc->nb_components; p++) {
422  uint8_t *dst = frame->data[p];
423  int is_chroma = p == 1 || p == 2;
424  int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
425  int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
426  if (desc->comp[0].depth >= 9) {
427  ((uint16_t*)dst)[0] = c[p];
428  av_memcpy_backptr(dst + 2, 2, bytes - 2);
429  dst += frame->linesize[p];
430  for (y = 1; y < height; y++) {
431  memcpy(dst, frame->data[p], 2*bytes);
432  dst += frame->linesize[p];
433  }
434  } else {
435  for (y = 0; y < height; y++) {
436  memset(dst, c[p], bytes);
437  dst += frame->linesize[p];
438  }
439  }
440  }
441 }
442 
443 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
444 {
445  int i;
446 
447  for (i = 0; i < count; i++) {
448  int r = func(c, (char *)arg + i * size);
449  if (ret)
450  ret[i] = r;
451  }
452  emms_c();
453  return 0;
454 }
455 
456 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
457 {
458  int i;
459 
460  for (i = 0; i < count; i++) {
461  int r = func(c, arg, i, 0);
462  if (ret)
463  ret[i] = r;
464  }
465  emms_c();
466  return 0;
467 }
468 
470  unsigned int fourcc)
471 {
472  while (tags->pix_fmt >= 0) {
473  if (tags->fourcc == fourcc)
474  return tags->pix_fmt;
475  tags++;
476  }
477  return AV_PIX_FMT_NONE;
478 }
479 
480 #if FF_API_CODEC_GET_SET
481 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
482 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
484 MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
485 MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
486 
488 {
489  return codec->properties;
490 }
491 
493 {
494  return codec->max_lowres;
495 }
496 #endif
497 
500 }
501 
503 {
504  int64_t bit_rate;
505  int bits_per_sample;
506 
507  switch (ctx->codec_type) {
508  case AVMEDIA_TYPE_VIDEO:
509  case AVMEDIA_TYPE_DATA:
512  bit_rate = ctx->bit_rate;
513  break;
514  case AVMEDIA_TYPE_AUDIO:
515  bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
516  bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
517  break;
518  default:
519  bit_rate = 0;
520  break;
521  }
522  return bit_rate;
523 }
524 
525 
526 static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
527 {
528  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
530 }
531 
532 static void ff_unlock_avcodec(const AVCodec *codec)
533 {
534  if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
536 }
537 
538 int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
539 {
540  int ret = 0;
541 
542  ff_unlock_avcodec(codec);
543 
544  ret = avcodec_open2(avctx, codec, options);
545 
546  ff_lock_avcodec(avctx, codec);
547  return ret;
548 }
549 
550 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
551 {
552  int ret = 0;
553  int codec_init_ok = 0;
554  AVDictionary *tmp = NULL;
555  const AVPixFmtDescriptor *pixdesc;
556  AVCodecInternal *avci;
557 
558  if (avcodec_is_open(avctx))
559  return 0;
560 
561  if (!codec && !avctx->codec) {
562  av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
563  return AVERROR(EINVAL);
564  }
565  if (codec && avctx->codec && codec != avctx->codec) {
566  av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
567  "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
568  return AVERROR(EINVAL);
569  }
570  if (!codec)
571  codec = avctx->codec;
572 
573  if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
574  return AVERROR(EINVAL);
575 
576  if (options)
577  av_dict_copy(&tmp, *options, 0);
578 
579  ff_lock_avcodec(avctx, codec);
580 
581  avci = av_mallocz(sizeof(*avci));
582  if (!avci) {
583  ret = AVERROR(ENOMEM);
584  goto end;
585  }
586  avctx->internal = avci;
587 
588  avci->to_free = av_frame_alloc();
591  avci->buffer_frame = av_frame_alloc();
592  avci->buffer_pkt = av_packet_alloc();
593  avci->es.in_frame = av_frame_alloc();
594  avci->ds.in_pkt = av_packet_alloc();
596  if (!avci->compat_decode_frame || !avci->compat_encode_packet ||
597  !avci->buffer_frame || !avci->buffer_pkt ||
598  !avci->es.in_frame || !avci->ds.in_pkt ||
599  !avci->to_free || !avci->last_pkt_props) {
600  ret = AVERROR(ENOMEM);
601  goto free_and_end;
602  }
603 
604  avci->skip_samples_multiplier = 1;
605 
606  if (codec->priv_data_size > 0) {
607  if (!avctx->priv_data) {
608  avctx->priv_data = av_mallocz(codec->priv_data_size);
609  if (!avctx->priv_data) {
610  ret = AVERROR(ENOMEM);
611  goto free_and_end;
612  }
613  if (codec->priv_class) {
614  *(const AVClass **)avctx->priv_data = codec->priv_class;
616  }
617  }
618  if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
619  goto free_and_end;
620  } else {
621  avctx->priv_data = NULL;
622  }
623  if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
624  goto free_and_end;
625 
626  if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
627  av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
628  ret = AVERROR(EINVAL);
629  goto free_and_end;
630  }
631 
632  // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
633  if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
634  (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
635  if (avctx->coded_width && avctx->coded_height)
636  ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
637  else if (avctx->width && avctx->height)
638  ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
639  if (ret < 0)
640  goto free_and_end;
641  }
642 
643  if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
644  && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
645  || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
646  av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
647  ff_set_dimensions(avctx, 0, 0);
648  }
649 
650  if (avctx->width > 0 && avctx->height > 0) {
651  if (av_image_check_sar(avctx->width, avctx->height,
652  avctx->sample_aspect_ratio) < 0) {
653  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
654  avctx->sample_aspect_ratio.num,
655  avctx->sample_aspect_ratio.den);
656  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
657  }
658  }
659 
660  /* if the decoder init function was already called previously,
661  * free the already allocated subtitle_header before overwriting it */
662  if (av_codec_is_decoder(codec))
663  av_freep(&avctx->subtitle_header);
664 
665  if (avctx->channels > FF_SANE_NB_CHANNELS || avctx->channels < 0) {
666  av_log(avctx, AV_LOG_ERROR, "Too many or invalid channels: %d\n", avctx->channels);
667  ret = AVERROR(EINVAL);
668  goto free_and_end;
669  }
670  if (avctx->sample_rate < 0) {
671  av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate);
672  ret = AVERROR(EINVAL);
673  goto free_and_end;
674  }
675  if (avctx->block_align < 0) {
676  av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align);
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  const 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 (av_codec_is_decoder(avctx->codec)) {
730  ret = ff_decode_bsfs_init(avctx);
731  if (ret < 0)
732  goto free_and_end;
733  }
734 
735  if (HAVE_THREADS
736  && !(avci->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
737  ret = ff_thread_init(avctx);
738  if (ret < 0) {
739  goto free_and_end;
740  }
741  }
742  if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
743  avctx->thread_count = 1;
744 
745  if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
746  av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
747  avctx->codec->max_lowres);
748  avctx->lowres = avctx->codec->max_lowres;
749  }
750 
751  if (av_codec_is_encoder(avctx->codec)) {
752  int i;
753 #if FF_API_CODED_FRAME
755  avctx->coded_frame = av_frame_alloc();
756  if (!avctx->coded_frame) {
757  ret = AVERROR(ENOMEM);
758  goto free_and_end;
759  }
761 #endif
762 
763  if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
764  av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
765  ret = AVERROR(EINVAL);
766  goto free_and_end;
767  }
768 
769  if (avctx->codec->sample_fmts) {
770  for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
771  if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
772  break;
773  if (avctx->channels == 1 &&
776  avctx->sample_fmt = avctx->codec->sample_fmts[i];
777  break;
778  }
779  }
780  if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
781  char buf[128];
782  snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
783  av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
784  (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
785  ret = AVERROR(EINVAL);
786  goto free_and_end;
787  }
788  }
789  if (avctx->codec->pix_fmts) {
790  for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
791  if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
792  break;
793  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
794  && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
796  char buf[128];
797  snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
798  av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
799  (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
800  ret = AVERROR(EINVAL);
801  goto free_and_end;
802  }
803  if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
804  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
805  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
806  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
807  avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
808  avctx->color_range = AVCOL_RANGE_JPEG;
809  }
810  if (avctx->codec->supported_samplerates) {
811  for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
812  if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
813  break;
814  if (avctx->codec->supported_samplerates[i] == 0) {
815  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
816  avctx->sample_rate);
817  ret = AVERROR(EINVAL);
818  goto free_and_end;
819  }
820  }
821  if (avctx->sample_rate < 0) {
822  av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
823  avctx->sample_rate);
824  ret = AVERROR(EINVAL);
825  goto free_and_end;
826  }
827  if (avctx->codec->channel_layouts) {
828  if (!avctx->channel_layout) {
829  av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
830  } else {
831  for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
832  if (avctx->channel_layout == avctx->codec->channel_layouts[i])
833  break;
834  if (avctx->codec->channel_layouts[i] == 0) {
835  char buf[512];
836  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
837  av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
838  ret = AVERROR(EINVAL);
839  goto free_and_end;
840  }
841  }
842  }
843  if (avctx->channel_layout && avctx->channels) {
845  if (channels != avctx->channels) {
846  char buf[512];
847  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
848  av_log(avctx, AV_LOG_ERROR,
849  "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
850  buf, channels, avctx->channels);
851  ret = AVERROR(EINVAL);
852  goto free_and_end;
853  }
854  } else if (avctx->channel_layout) {
856  }
857  if (avctx->channels < 0) {
858  av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
859  avctx->channels);
860  ret = AVERROR(EINVAL);
861  goto free_and_end;
862  }
863  if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
864  pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
865  if ( avctx->bits_per_raw_sample < 0
866  || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
867  av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
868  avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
869  avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
870  }
871  if (avctx->width <= 0 || avctx->height <= 0) {
872  av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
873  ret = AVERROR(EINVAL);
874  goto free_and_end;
875  }
876  }
877  if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
878  && avctx->bit_rate>0 && avctx->bit_rate<1000) {
879  av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
880  }
881 
882  if (!avctx->rc_initial_buffer_occupancy)
883  avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
884 
885  if (avctx->ticks_per_frame && avctx->time_base.num &&
886  avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
887  av_log(avctx, AV_LOG_ERROR,
888  "ticks_per_frame %d too large for the timebase %d/%d.",
889  avctx->ticks_per_frame,
890  avctx->time_base.num,
891  avctx->time_base.den);
892  goto free_and_end;
893  }
894 
895  if (avctx->hw_frames_ctx) {
896  AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
897  if (frames_ctx->format != avctx->pix_fmt) {
898  av_log(avctx, AV_LOG_ERROR,
899  "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
900  ret = AVERROR(EINVAL);
901  goto free_and_end;
902  }
903  if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
904  avctx->sw_pix_fmt != frames_ctx->sw_format) {
905  av_log(avctx, AV_LOG_ERROR,
906  "Mismatching AVCodecContext.sw_pix_fmt (%s) "
907  "and AVHWFramesContext.sw_format (%s)\n",
909  av_get_pix_fmt_name(frames_ctx->sw_format));
910  ret = AVERROR(EINVAL);
911  goto free_and_end;
912  }
913  avctx->sw_pix_fmt = frames_ctx->sw_format;
914  }
915  }
916 
919  avctx->pts_correction_last_pts =
920  avctx->pts_correction_last_dts = INT64_MIN;
921 
922  if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
924  av_log(avctx, AV_LOG_WARNING,
925  "gray decoding requested but not enabled at configuration time\n");
926  if (avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) {
928  }
929 
930  if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
931  || avci->frame_thread_encoder)) {
932  ret = avctx->codec->init(avctx);
933  if (ret < 0) {
934  codec_init_ok = -1;
935  goto free_and_end;
936  }
937  codec_init_ok = 1;
938  }
939 
940  ret=0;
941 
942  if (av_codec_is_decoder(avctx->codec)) {
943  if (!avctx->bit_rate)
944  avctx->bit_rate = get_bit_rate(avctx);
945  /* validate channel layout from the decoder */
946  if (avctx->channel_layout) {
948  if (!avctx->channels)
949  avctx->channels = channels;
950  else if (channels != avctx->channels) {
951  char buf[512];
952  av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
953  av_log(avctx, AV_LOG_WARNING,
954  "Channel layout '%s' with %d channels does not match specified number of channels %d: "
955  "ignoring specified channel layout\n",
956  buf, channels, avctx->channels);
957  avctx->channel_layout = 0;
958  }
959  }
960  if (avctx->channels && avctx->channels < 0 ||
961  avctx->channels > FF_SANE_NB_CHANNELS) {
962  ret = AVERROR(EINVAL);
963  goto free_and_end;
964  }
965  if (avctx->bits_per_coded_sample < 0) {
966  ret = AVERROR(EINVAL);
967  goto free_and_end;
968  }
969  if (avctx->sub_charenc) {
970  if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
971  av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
972  "supported with subtitles codecs\n");
973  ret = AVERROR(EINVAL);
974  goto free_and_end;
975  } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
976  av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
977  "subtitles character encoding will be ignored\n",
978  avctx->codec_descriptor->name);
980  } else {
981  /* input character encoding is set for a text based subtitle
982  * codec at this point */
985 
987 #if CONFIG_ICONV
988  iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
989  if (cd == (iconv_t)-1) {
990  ret = AVERROR(errno);
991  av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
992  "with input character encoding \"%s\"\n", avctx->sub_charenc);
993  goto free_and_end;
994  }
995  iconv_close(cd);
996 #else
997  av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
998  "conversion needs a libavcodec built with iconv support "
999  "for this codec\n");
1000  ret = AVERROR(ENOSYS);
1001  goto free_and_end;
1002 #endif
1003  }
1004  }
1005  }
1006 
1007 #if FF_API_AVCTX_TIMEBASE
1008  if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1009  avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
1010 #endif
1011  }
1012  if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
1013  av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
1014  }
1015 
1016 end:
1017  ff_unlock_avcodec(codec);
1018  if (options) {
1019  av_dict_free(options);
1020  *options = tmp;
1021  }
1022 
1023  return ret;
1024 free_and_end:
1025  if (avctx->codec && avctx->codec->close &&
1026  (codec_init_ok > 0 || (codec_init_ok < 0 &&
1028  avctx->codec->close(avctx);
1029 
1030  if (HAVE_THREADS && avci->thread_ctx)
1031  ff_thread_free(avctx);
1032 
1033  if (codec->priv_class && avctx->priv_data)
1034  av_opt_free(avctx->priv_data);
1035  av_opt_free(avctx);
1036 
1037  if (av_codec_is_encoder(avctx->codec)) {
1038 #if FF_API_CODED_FRAME
1040  av_frame_free(&avctx->coded_frame);
1042 #endif
1043  av_freep(&avctx->extradata);
1044  avctx->extradata_size = 0;
1045  }
1046 
1047  av_dict_free(&tmp);
1048  av_freep(&avctx->priv_data);
1049  av_freep(&avctx->subtitle_header);
1050 
1051  av_frame_free(&avci->to_free);
1053  av_frame_free(&avci->buffer_frame);
1055  av_packet_free(&avci->buffer_pkt);
1057 
1058  av_packet_free(&avci->ds.in_pkt);
1059  av_frame_free(&avci->es.in_frame);
1060  av_bsf_free(&avci->bsf);
1061 
1062  av_buffer_unref(&avci->pool);
1063  av_freep(&avci);
1064  avctx->internal = NULL;
1065  avctx->codec = NULL;
1066  goto end;
1067 }
1068 
1070 {
1071  AVCodecInternal *avci = avctx->internal;
1072 
1073  if (av_codec_is_encoder(avctx->codec)) {
1074  int caps = avctx->codec->capabilities;
1075 
1076  if (!(caps & AV_CODEC_CAP_ENCODER_FLUSH)) {
1077  // Only encoders that explicitly declare support for it can be
1078  // flushed. Otherwise, this is a no-op.
1079  av_log(avctx, AV_LOG_WARNING, "Ignoring attempt to flush encoder "
1080  "that doesn't support it\n");
1081  return;
1082  }
1083 
1084  // We haven't implemented flushing for frame-threaded encoders.
1086  }
1087 
1088  avci->draining = 0;
1089  avci->draining_done = 0;
1090  avci->nb_draining_errors = 0;
1094  av_packet_unref(avci->buffer_pkt);
1095 
1096  av_frame_unref(avci->es.in_frame);
1097  av_packet_unref(avci->ds.in_pkt);
1098 
1099  if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
1100  ff_thread_flush(avctx);
1101  else if (avctx->codec->flush)
1102  avctx->codec->flush(avctx);
1103 
1104  avctx->pts_correction_last_pts =
1105  avctx->pts_correction_last_dts = INT64_MIN;
1106 
1107  if (av_codec_is_decoder(avctx->codec))
1108  av_bsf_flush(avci->bsf);
1109 
1110  if (!avctx->refcounted_frames)
1111  av_frame_unref(avci->to_free);
1112 }
1113 
1115 {
1116  int i;
1117 
1118  for (i = 0; i < sub->num_rects; i++) {
1119  av_freep(&sub->rects[i]->data[0]);
1120  av_freep(&sub->rects[i]->data[1]);
1121  av_freep(&sub->rects[i]->data[2]);
1122  av_freep(&sub->rects[i]->data[3]);
1123  av_freep(&sub->rects[i]->text);
1124  av_freep(&sub->rects[i]->ass);
1125  av_freep(&sub->rects[i]);
1126  }
1127 
1128  av_freep(&sub->rects);
1129 
1130  memset(sub, 0, sizeof(*sub));
1131 }
1132 
1134 {
1135  int i;
1136 
1137  if (!avctx)
1138  return 0;
1139 
1140  if (avcodec_is_open(avctx)) {
1141  if (CONFIG_FRAME_THREAD_ENCODER &&
1142  avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1144  }
1145  if (HAVE_THREADS && avctx->internal->thread_ctx)
1146  ff_thread_free(avctx);
1147  if (avctx->codec && avctx->codec->close)
1148  avctx->codec->close(avctx);
1149  avctx->internal->byte_buffer_size = 0;
1150  av_freep(&avctx->internal->byte_buffer);
1151  av_frame_free(&avctx->internal->to_free);
1158  &avctx->internal->pkt_props_tail);
1159 
1160  av_packet_free(&avctx->internal->ds.in_pkt);
1161  av_frame_free(&avctx->internal->es.in_frame);
1162 
1163  av_buffer_unref(&avctx->internal->pool);
1164 
1165  if (avctx->hwaccel && avctx->hwaccel->uninit)
1166  avctx->hwaccel->uninit(avctx);
1168 
1169  av_bsf_free(&avctx->internal->bsf);
1170 
1171  av_freep(&avctx->internal);
1172  }
1173 
1174  for (i = 0; i < avctx->nb_coded_side_data; i++)
1175  av_freep(&avctx->coded_side_data[i].data);
1176  av_freep(&avctx->coded_side_data);
1177  avctx->nb_coded_side_data = 0;
1178 
1179  av_buffer_unref(&avctx->hw_frames_ctx);
1180  av_buffer_unref(&avctx->hw_device_ctx);
1181 
1182  if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1183  av_opt_free(avctx->priv_data);
1184  av_opt_free(avctx);
1185  av_freep(&avctx->priv_data);
1186  if (av_codec_is_encoder(avctx->codec)) {
1187  av_freep(&avctx->extradata);
1188 #if FF_API_CODED_FRAME
1190  av_frame_free(&avctx->coded_frame);
1192 #endif
1193  }
1194  avctx->codec = NULL;
1195  avctx->active_thread_type = 0;
1196 
1197  return 0;
1198 }
1199 
1200 const char *avcodec_get_name(enum AVCodecID id)
1201 {
1202  const AVCodecDescriptor *cd;
1203  const AVCodec *codec;
1204 
1205  if (id == AV_CODEC_ID_NONE)
1206  return "none";
1207  cd = avcodec_descriptor_get(id);
1208  if (cd)
1209  return cd->name;
1210  av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1211  codec = avcodec_find_decoder(id);
1212  if (codec)
1213  return codec->name;
1214  codec = avcodec_find_encoder(id);
1215  if (codec)
1216  return codec->name;
1217  return "unknown_codec";
1218 }
1219 
1220 #if FF_API_TAG_STRING
1221 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1222 {
1223  int i, len, ret = 0;
1224 
1225 #define TAG_PRINT(x) \
1226  (((x) >= '0' && (x) <= '9') || \
1227  ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1228  ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
1229 
1230  for (i = 0; i < 4; i++) {
1231  len = snprintf(buf, buf_size,
1232  TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
1233  buf += len;
1234  buf_size = buf_size > len ? buf_size - len : 0;
1235  ret += len;
1236  codec_tag >>= 8;
1237  }
1238  return ret;
1239 }
1240 #endif
1241 
1242 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1243 {
1244  const char *codec_type;
1245  const char *codec_name;
1246  const char *profile = NULL;
1247  int64_t bitrate;
1248  int new_line = 0;
1249  AVRational display_aspect_ratio;
1250  const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
1251 
1252  if (!buf || buf_size <= 0)
1253  return;
1254  codec_type = av_get_media_type_string(enc->codec_type);
1255  codec_name = avcodec_get_name(enc->codec_id);
1256  profile = avcodec_profile_name(enc->codec_id, enc->profile);
1257 
1258  snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
1259  codec_name);
1260  buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1261 
1262  if (enc->codec && strcmp(enc->codec->name, codec_name))
1263  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
1264 
1265  if (profile)
1266  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1267  if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
1269  && enc->refs)
1270  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1271  ", %d reference frame%s",
1272  enc->refs, enc->refs > 1 ? "s" : "");
1273 
1274  if (enc->codec_tag)
1275  snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
1276  av_fourcc2str(enc->codec_tag), enc->codec_tag);
1277 
1278  switch (enc->codec_type) {
1279  case AVMEDIA_TYPE_VIDEO:
1280  {
1281  char detail[256] = "(";
1282 
1283  av_strlcat(buf, separator, buf_size);
1284 
1285  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1286  "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
1288  if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
1290  av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
1292  av_strlcatf(detail, sizeof(detail), "%s, ",
1294 
1295  if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
1297  enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
1298  if (enc->colorspace != (int)enc->color_primaries ||
1299  enc->colorspace != (int)enc->color_trc) {
1300  new_line = 1;
1301  av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
1305  } else
1306  av_strlcatf(detail, sizeof(detail), "%s, ",
1308  }
1309 
1310  if (enc->field_order != AV_FIELD_UNKNOWN) {
1311  const char *field_order = "progressive";
1312  if (enc->field_order == AV_FIELD_TT)
1313  field_order = "top first";
1314  else if (enc->field_order == AV_FIELD_BB)
1315  field_order = "bottom first";
1316  else if (enc->field_order == AV_FIELD_TB)
1317  field_order = "top coded first (swapped)";
1318  else if (enc->field_order == AV_FIELD_BT)
1319  field_order = "bottom coded first (swapped)";
1320 
1321  av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
1322  }
1323 
1324  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1326  av_strlcatf(detail, sizeof(detail), "%s, ",
1328 
1329  if (strlen(detail) > 1) {
1330  detail[strlen(detail) - 2] = 0;
1331  av_strlcatf(buf, buf_size, "%s)", detail);
1332  }
1333  }
1334 
1335  if (enc->width) {
1336  av_strlcat(buf, new_line ? separator : ", ", buf_size);
1337 
1338  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1339  "%dx%d",
1340  enc->width, enc->height);
1341 
1342  if (av_log_get_level() >= AV_LOG_VERBOSE &&
1343  (enc->width != enc->coded_width ||
1344  enc->height != enc->coded_height))
1345  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1346  " (%dx%d)", enc->coded_width, enc->coded_height);
1347 
1348  if (enc->sample_aspect_ratio.num) {
1349  av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1350  enc->width * (int64_t)enc->sample_aspect_ratio.num,
1351  enc->height * (int64_t)enc->sample_aspect_ratio.den,
1352  1024 * 1024);
1353  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1354  " [SAR %d:%d DAR %d:%d]",
1356  display_aspect_ratio.num, display_aspect_ratio.den);
1357  }
1358  if (av_log_get_level() >= AV_LOG_DEBUG) {
1359  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1360  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1361  ", %d/%d",
1362  enc->time_base.num / g, enc->time_base.den / g);
1363  }
1364  }
1365  if (encode) {
1366  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1367  ", q=%d-%d", enc->qmin, enc->qmax);
1368  } else {
1370  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1371  ", Closed Captions");
1373  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1374  ", lossless");
1375  }
1376  break;
1377  case AVMEDIA_TYPE_AUDIO:
1378  av_strlcat(buf, separator, buf_size);
1379 
1380  if (enc->sample_rate) {
1381  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1382  "%d Hz, ", enc->sample_rate);
1383  }
1384  av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1385  if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1386  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1387  ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1388  }
1389  if ( enc->bits_per_raw_sample > 0
1391  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1392  " (%d bit)", enc->bits_per_raw_sample);
1393  if (av_log_get_level() >= AV_LOG_VERBOSE) {
1394  if (enc->initial_padding)
1395  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1396  ", delay %d", enc->initial_padding);
1397  if (enc->trailing_padding)
1398  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1399  ", padding %d", enc->trailing_padding);
1400  }
1401  break;
1402  case AVMEDIA_TYPE_DATA:
1403  if (av_log_get_level() >= AV_LOG_DEBUG) {
1404  int g = av_gcd(enc->time_base.num, enc->time_base.den);
1405  if (g)
1406  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1407  ", %d/%d",
1408  enc->time_base.num / g, enc->time_base.den / g);
1409  }
1410  break;
1411  case AVMEDIA_TYPE_SUBTITLE:
1412  if (enc->width)
1413  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1414  ", %dx%d", enc->width, enc->height);
1415  break;
1416  default:
1417  return;
1418  }
1419  if (encode) {
1420  if (enc->flags & AV_CODEC_FLAG_PASS1)
1421  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1422  ", pass 1");
1423  if (enc->flags & AV_CODEC_FLAG_PASS2)
1424  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1425  ", pass 2");
1426  }
1427  bitrate = get_bit_rate(enc);
1428  if (bitrate != 0) {
1429  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1430  ", %"PRId64" kb/s", bitrate / 1000);
1431  } else if (enc->rc_max_rate > 0) {
1432  snprintf(buf + strlen(buf), buf_size - strlen(buf),
1433  ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
1434  }
1435 }
1436 
1437 const char *av_get_profile_name(const AVCodec *codec, int profile)
1438 {
1439  const AVProfile *p;
1440  if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1441  return NULL;
1442 
1443  for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1444  if (p->profile == profile)
1445  return p->name;
1446 
1447  return NULL;
1448 }
1449 
1451 {
1452  const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1453  const AVProfile *p;
1454 
1455  if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
1456  return NULL;
1457 
1458  for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1459  if (p->profile == profile)
1460  return p->name;
1461 
1462  return NULL;
1463 }
1464 
1465 unsigned avcodec_version(void)
1466 {
1469  av_assert0(AV_CODEC_ID_SRT==94216);
1471 
1472  return LIBAVCODEC_VERSION_INT;
1473 }
1474 
1475 const char *avcodec_configuration(void)
1476 {
1477  return FFMPEG_CONFIGURATION;
1478 }
1479 
1480 const char *avcodec_license(void)
1481 {
1482 #define LICENSE_PREFIX "libavcodec license: "
1483  return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
1484 }
1485 
1487 {
1488  switch (codec_id) {
1489  case AV_CODEC_ID_8SVX_EXP:
1490  case AV_CODEC_ID_8SVX_FIB:
1492  case AV_CODEC_ID_ADPCM_CT:
1502  return 4;
1503  case AV_CODEC_ID_DSD_LSBF:
1504  case AV_CODEC_ID_DSD_MSBF:
1507  case AV_CODEC_ID_PCM_ALAW:
1508  case AV_CODEC_ID_PCM_MULAW:
1509  case AV_CODEC_ID_PCM_VIDC:
1510  case AV_CODEC_ID_PCM_S8:
1512  case AV_CODEC_ID_PCM_U8:
1513  case AV_CODEC_ID_SDX2_DPCM:
1514  case AV_CODEC_ID_DERF_DPCM:
1515  return 8;
1516  case AV_CODEC_ID_PCM_S16BE:
1518  case AV_CODEC_ID_PCM_S16LE:
1520  case AV_CODEC_ID_PCM_U16BE:
1521  case AV_CODEC_ID_PCM_U16LE:
1522  return 16;
1524  case AV_CODEC_ID_PCM_S24BE:
1525  case AV_CODEC_ID_PCM_S24LE:
1527  case AV_CODEC_ID_PCM_U24BE:
1528  case AV_CODEC_ID_PCM_U24LE:
1529  return 24;
1530  case AV_CODEC_ID_PCM_S32BE:
1531  case AV_CODEC_ID_PCM_S32LE:
1533  case AV_CODEC_ID_PCM_U32BE:
1534  case AV_CODEC_ID_PCM_U32LE:
1535  case AV_CODEC_ID_PCM_F32BE:
1536  case AV_CODEC_ID_PCM_F32LE:
1537  case AV_CODEC_ID_PCM_F24LE:
1538  case AV_CODEC_ID_PCM_F16LE:
1539  return 32;
1540  case AV_CODEC_ID_PCM_F64BE:
1541  case AV_CODEC_ID_PCM_F64LE:
1542  case AV_CODEC_ID_PCM_S64BE:
1543  case AV_CODEC_ID_PCM_S64LE:
1544  return 64;
1545  default:
1546  return 0;
1547  }
1548 }
1549 
1551 {
1552  static const enum AVCodecID map[][2] = {
1558  [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
1559  [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
1560  [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
1562  [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
1563  [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
1564  };
1565  if (fmt < 0 || fmt >= FF_ARRAY_ELEMS(map))
1566  return AV_CODEC_ID_NONE;
1567  if (be < 0 || be > 1)
1568  be = AV_NE(1, 0);
1569  return map[fmt][be];
1570 }
1571 
1573 {
1574  switch (codec_id) {
1576  return 2;
1578  return 3;
1582  case AV_CODEC_ID_ADPCM_SWF:
1583  case AV_CODEC_ID_ADPCM_MS:
1584  return 4;
1585  default:
1586  return av_get_exact_bits_per_sample(codec_id);
1587  }
1588 }
1589 
1590 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
1591  uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
1592  uint8_t * extradata, int frame_size, int frame_bytes)
1593 {
1595  int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
1596 
1597  /* codecs with an exact constant bits per sample */
1598  if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
1599  return (frame_bytes * 8LL) / (bps * ch);
1600  bps = bits_per_coded_sample;
1601 
1602  /* codecs with a fixed packet duration */
1603  switch (id) {
1604  case AV_CODEC_ID_ADPCM_ADX: return 32;
1605  case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
1606  case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
1607  case AV_CODEC_ID_AMR_NB:
1608  case AV_CODEC_ID_EVRC:
1609  case AV_CODEC_ID_GSM:
1610  case AV_CODEC_ID_QCELP:
1611  case AV_CODEC_ID_RA_288: return 160;
1612  case AV_CODEC_ID_AMR_WB:
1613  case AV_CODEC_ID_GSM_MS: return 320;
1614  case AV_CODEC_ID_MP1: return 384;
1615  case AV_CODEC_ID_ATRAC1: return 512;
1616  case AV_CODEC_ID_ATRAC9:
1617  case AV_CODEC_ID_ATRAC3:
1618  if (framecount > INT_MAX/1024)
1619  return 0;
1620  return 1024 * framecount;
1621  case AV_CODEC_ID_ATRAC3P: return 2048;
1622  case AV_CODEC_ID_MP2:
1623  case AV_CODEC_ID_MUSEPACK7: return 1152;
1624  case AV_CODEC_ID_AC3: return 1536;
1625  }
1626 
1627  if (sr > 0) {
1628  /* calc from sample rate */
1629  if (id == AV_CODEC_ID_TTA)
1630  return 256 * sr / 245;
1631  else if (id == AV_CODEC_ID_DST)
1632  return 588 * sr / 44100;
1633 
1634  if (ch > 0) {
1635  /* calc from sample rate and channels */
1636  if (id == AV_CODEC_ID_BINKAUDIO_DCT) {
1637  if (sr / 22050 > 22)
1638  return 0;
1639  return (480 << (sr / 22050)) / ch;
1640  }
1641  }
1642 
1643  if (id == AV_CODEC_ID_MP3)
1644  return sr <= 24000 ? 576 : 1152;
1645  }
1646 
1647  if (ba > 0) {
1648  /* calc from block_align */
1649  if (id == AV_CODEC_ID_SIPR) {
1650  switch (ba) {
1651  case 20: return 160;
1652  case 19: return 144;
1653  case 29: return 288;
1654  case 37: return 480;
1655  }
1656  } else if (id == AV_CODEC_ID_ILBC) {
1657  switch (ba) {
1658  case 38: return 160;
1659  case 50: return 240;
1660  }
1661  }
1662  }
1663 
1664  if (frame_bytes > 0) {
1665  /* calc from frame_bytes only */
1666  if (id == AV_CODEC_ID_TRUESPEECH)
1667  return 240 * (frame_bytes / 32);
1668  if (id == AV_CODEC_ID_NELLYMOSER)
1669  return 256 * (frame_bytes / 64);
1670  if (id == AV_CODEC_ID_RA_144)
1671  return 160 * (frame_bytes / 20);
1672 
1673  if (bps > 0) {
1674  /* calc from frame_bytes and bits_per_coded_sample */
1676  return frame_bytes * 8 / bps;
1677  }
1678 
1679  if (ch > 0 && ch < INT_MAX/16) {
1680  /* calc from frame_bytes and channels */
1681  switch (id) {
1682  case AV_CODEC_ID_FASTAUDIO:
1683  return frame_bytes / (40 * ch) * 256;
1685  return (frame_bytes - 4 * ch) / (128 * ch) * 256;
1686  case AV_CODEC_ID_ADPCM_AFC:
1687  return frame_bytes / (9 * ch) * 16;
1688  case AV_CODEC_ID_ADPCM_PSX:
1689  case AV_CODEC_ID_ADPCM_DTK:
1690  return frame_bytes / (16 * ch) * 28;
1691  case AV_CODEC_ID_ADPCM_4XM:
1694  return (frame_bytes - 4 * ch) * 2 / ch;
1696  return (frame_bytes - 4) * 2 / ch;
1698  return (frame_bytes - 8) * 2 / ch;
1699  case AV_CODEC_ID_ADPCM_THP:
1701  if (extradata)
1702  return frame_bytes * 14 / (8 * ch);
1703  break;
1704  case AV_CODEC_ID_ADPCM_XA:
1705  return (frame_bytes / 128) * 224 / ch;
1707  return (frame_bytes - 6 - ch) / ch;
1708  case AV_CODEC_ID_ROQ_DPCM:
1709  return (frame_bytes - 8) / ch;
1710  case AV_CODEC_ID_XAN_DPCM:
1711  return (frame_bytes - 2 * ch) / ch;
1712  case AV_CODEC_ID_MACE3:
1713  return 3 * frame_bytes / ch;
1714  case AV_CODEC_ID_MACE6:
1715  return 6 * frame_bytes / ch;
1716  case AV_CODEC_ID_PCM_LXF:
1717  return 2 * (frame_bytes / (5 * ch));
1718  case AV_CODEC_ID_IAC:
1719  case AV_CODEC_ID_IMC:
1720  return 4 * frame_bytes / ch;
1721  }
1722 
1723  if (tag) {
1724  /* calc from frame_bytes, channels, and codec_tag */
1725  if (id == AV_CODEC_ID_SOL_DPCM) {
1726  if (tag == 3)
1727  return frame_bytes / ch;
1728  else
1729  return frame_bytes * 2 / ch;
1730  }
1731  }
1732 
1733  if (ba > 0) {
1734  /* calc from frame_bytes, channels, and block_align */
1735  int blocks = frame_bytes / ba;
1736  switch (id) {
1738  if (bps < 2 || bps > 5)
1739  return 0;
1740  return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
1742  return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
1744  return blocks * (1 + (ba - 4 * ch) * 2 / ch);
1746  return blocks * ((ba - 4 * ch) * 2 / ch);
1747  case AV_CODEC_ID_ADPCM_MS:
1748  return blocks * (2 + (ba - 7 * ch) * 2 / ch);
1750  return blocks * (ba - 16) * 2 / ch;
1751  }
1752  }
1753 
1754  if (bps > 0) {
1755  /* calc from frame_bytes, channels, and bits_per_coded_sample */
1756  switch (id) {
1757  case AV_CODEC_ID_PCM_DVD:
1758  if(bps<4 || frame_bytes<3)
1759  return 0;
1760  return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
1762  if(bps<4 || frame_bytes<4)
1763  return 0;
1764  return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
1765  case AV_CODEC_ID_S302M:
1766  return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
1767  }
1768  }
1769  }
1770  }
1771 
1772  /* Fall back on using frame_size */
1773  if (frame_size > 1 && frame_bytes)
1774  return frame_size;
1775 
1776  //For WMA we currently have no other means to calculate duration thus we
1777  //do it here by assuming CBR, which is true for all known cases.
1778  if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
1779  if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
1780  return (frame_bytes * 8LL * sr) / bitrate;
1781  }
1782 
1783  return 0;
1784 }
1785 
1786 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
1787 {
1788  return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
1789  avctx->channels, avctx->block_align,
1790  avctx->codec_tag, avctx->bits_per_coded_sample,
1791  avctx->bit_rate, avctx->extradata, avctx->frame_size,
1792  frame_bytes);
1793 }
1794 
1796 {
1797  return get_audio_frame_duration(par->codec_id, par->sample_rate,
1798  par->channels, par->block_align,
1799  par->codec_tag, par->bits_per_coded_sample,
1800  par->bit_rate, par->extradata, par->frame_size,
1801  frame_bytes);
1802 }
1803 
1804 #if !HAVE_THREADS
1806 {
1807  return -1;
1808 }
1809 
1810 #endif
1811 
1812 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1813 {
1814  unsigned int n = 0;
1815 
1816  while (v >= 0xff) {
1817  *s++ = 0xff;
1818  v -= 0xff;
1819  n++;
1820  }
1821  *s = v;
1822  n++;
1823  return n;
1824 }
1825 
1826 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
1827 {
1828  int i;
1829  for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
1830  return i;
1831 }
1832 
1834 {
1835  int i;
1836  if (!codec->hw_configs || index < 0)
1837  return NULL;
1838  for (i = 0; i <= index; i++)
1839  if (!codec->hw_configs[i])
1840  return NULL;
1841  return &codec->hw_configs[index]->public;
1842 }
1843 
1844 #if FF_API_USER_VISIBLE_AVHWACCEL
1846 {
1847  return NULL;
1848 }
1849 
1851 {
1852 }
1853 #endif
1854 
1855 #if FF_API_LOCKMGR
1856 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1857 {
1858  return 0;
1859 }
1860 #endif
1861 
1862 unsigned int avpriv_toupper4(unsigned int x)
1863 {
1864  return av_toupper(x & 0xFF) +
1865  (av_toupper((x >> 8) & 0xFF) << 8) +
1866  (av_toupper((x >> 16) & 0xFF) << 16) +
1867 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
1868 }
1869 
1871 {
1872  int ret;
1873 
1874  dst->owner[0] = src->owner[0];
1875  dst->owner[1] = src->owner[1];
1876 
1877  ret = av_frame_ref(dst->f, src->f);
1878  if (ret < 0)
1879  return ret;
1880 
1881  av_assert0(!dst->progress);
1882 
1883  if (src->progress &&
1884  !(dst->progress = av_buffer_ref(src->progress))) {
1885  ff_thread_release_buffer(dst->owner[0], dst);
1886  return AVERROR(ENOMEM);
1887  }
1888 
1889  return 0;
1890 }
1891 
1892 #if !HAVE_THREADS
1893 
1895 {
1896  return ff_get_format(avctx, fmt);
1897 }
1898 
1900 {
1901  f->owner[0] = f->owner[1] = avctx;
1902  return ff_get_buffer(avctx, f->f, flags);
1903 }
1904 
1906 {
1907  if (f->f)
1908  av_frame_unref(f->f);
1909 }
1910 
1912 {
1913 }
1914 
1916 {
1917 }
1918 
1919 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
1920 {
1921 }
1922 
1924 {
1925  return 1;
1926 }
1927 
1929 {
1930  return 0;
1931 }
1932 
1934 {
1935 }
1936 
1937 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
1938 {
1939 }
1940 
1941 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
1942 {
1943 }
1944 
1945 #endif
1946 
1948 {
1949  return !!s->internal;
1950 }
1951 
1952 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
1953  const uint8_t *end,
1954  uint32_t *av_restrict state)
1955 {
1956  int i;
1957 
1958  av_assert0(p <= end);
1959  if (p >= end)
1960  return end;
1961 
1962  for (i = 0; i < 3; i++) {
1963  uint32_t tmp = *state << 8;
1964  *state = tmp + *(p++);
1965  if (tmp == 0x100 || p == end)
1966  return p;
1967  }
1968 
1969  while (p < end) {
1970  if (p[-1] > 1 ) p += 3;
1971  else if (p[-2] ) p += 2;
1972  else if (p[-3]|(p[-1]-1)) p++;
1973  else {
1974  p++;
1975  break;
1976  }
1977  }
1978 
1979  p = FFMIN(p, end) - 4;
1980  *state = AV_RB32(p);
1981 
1982  return p + 4;
1983 }
1984 
1986 {
1987  AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
1988  if (!props)
1989  return NULL;
1990 
1991  if (size)
1992  *size = sizeof(*props);
1993 
1994  props->vbv_delay = UINT64_MAX;
1995 
1996  return props;
1997 }
1998 
2000 {
2002  AVCPBProperties *props;
2003  size_t size;
2004  int i;
2005 
2006  for (i = 0; i < avctx->nb_coded_side_data; i++)
2008  return (AVCPBProperties *)avctx->coded_side_data[i].data;
2009 
2010  props = av_cpb_properties_alloc(&size);
2011  if (!props)
2012  return NULL;
2013 
2014  tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
2015  if (!tmp) {
2016  av_freep(&props);
2017  return NULL;
2018  }
2019 
2020  avctx->coded_side_data = tmp;
2021  avctx->nb_coded_side_data++;
2022 
2024  avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
2025  avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
2026 
2027  return props;
2028 }
2029 
2031 {
2032  av_freep(&par->extradata);
2033 
2034  memset(par, 0, sizeof(*par));
2035 
2037  par->codec_id = AV_CODEC_ID_NONE;
2038  par->format = -1;
2045  par->sample_aspect_ratio = (AVRational){ 0, 1 };
2046  par->profile = FF_PROFILE_UNKNOWN;
2047  par->level = FF_LEVEL_UNKNOWN;
2048 }
2049 
2051 {
2052  AVCodecParameters *par = av_mallocz(sizeof(*par));
2053 
2054  if (!par)
2055  return NULL;
2057  return par;
2058 }
2059 
2061 {
2062  AVCodecParameters *par = *ppar;
2063 
2064  if (!par)
2065  return;
2067 
2068  av_freep(ppar);
2069 }
2070 
2072 {
2074  memcpy(dst, src, sizeof(*dst));
2075 
2076  dst->extradata = NULL;
2077  dst->extradata_size = 0;
2078  if (src->extradata) {
2080  if (!dst->extradata)
2081  return AVERROR(ENOMEM);
2082  memcpy(dst->extradata, src->extradata, src->extradata_size);
2083  dst->extradata_size = src->extradata_size;
2084  }
2085 
2086  return 0;
2087 }
2088 
2090  const AVCodecContext *codec)
2091 {
2093 
2094  par->codec_type = codec->codec_type;
2095  par->codec_id = codec->codec_id;
2096  par->codec_tag = codec->codec_tag;
2097 
2098  par->bit_rate = codec->bit_rate;
2101  par->profile = codec->profile;
2102  par->level = codec->level;
2103 
2104  switch (par->codec_type) {
2105  case AVMEDIA_TYPE_VIDEO:
2106  par->format = codec->pix_fmt;
2107  par->width = codec->width;
2108  par->height = codec->height;
2109  par->field_order = codec->field_order;
2110  par->color_range = codec->color_range;
2111  par->color_primaries = codec->color_primaries;
2112  par->color_trc = codec->color_trc;
2113  par->color_space = codec->colorspace;
2116  par->video_delay = codec->has_b_frames;
2117  break;
2118  case AVMEDIA_TYPE_AUDIO:
2119  par->format = codec->sample_fmt;
2120  par->channel_layout = codec->channel_layout;
2121  par->channels = codec->channels;
2122  par->sample_rate = codec->sample_rate;
2123  par->block_align = codec->block_align;
2124  par->frame_size = codec->frame_size;
2125  par->initial_padding = codec->initial_padding;
2126  par->trailing_padding = codec->trailing_padding;
2127  par->seek_preroll = codec->seek_preroll;
2128  break;
2129  case AVMEDIA_TYPE_SUBTITLE:
2130  par->width = codec->width;
2131  par->height = codec->height;
2132  break;
2133  }
2134 
2135  if (codec->extradata) {
2137  if (!par->extradata)
2138  return AVERROR(ENOMEM);
2139  memcpy(par->extradata, codec->extradata, codec->extradata_size);
2140  par->extradata_size = codec->extradata_size;
2141  }
2142 
2143  return 0;
2144 }
2145 
2147  const AVCodecParameters *par)
2148 {
2149  codec->codec_type = par->codec_type;
2150  codec->codec_id = par->codec_id;
2151  codec->codec_tag = par->codec_tag;
2152 
2153  codec->bit_rate = par->bit_rate;
2156  codec->profile = par->profile;
2157  codec->level = par->level;
2158 
2159  switch (par->codec_type) {
2160  case AVMEDIA_TYPE_VIDEO:
2161  codec->pix_fmt = par->format;
2162  codec->width = par->width;
2163  codec->height = par->height;
2164  codec->field_order = par->field_order;
2165  codec->color_range = par->color_range;
2166  codec->color_primaries = par->color_primaries;
2167  codec->color_trc = par->color_trc;
2168  codec->colorspace = par->color_space;
2171  codec->has_b_frames = par->video_delay;
2172  break;
2173  case AVMEDIA_TYPE_AUDIO:
2174  codec->sample_fmt = par->format;
2175  codec->channel_layout = par->channel_layout;
2176  codec->channels = par->channels;
2177  codec->sample_rate = par->sample_rate;
2178  codec->block_align = par->block_align;
2179  codec->frame_size = par->frame_size;
2180  codec->delay =
2181  codec->initial_padding = par->initial_padding;
2182  codec->trailing_padding = par->trailing_padding;
2183  codec->seek_preroll = par->seek_preroll;
2184  break;
2185  case AVMEDIA_TYPE_SUBTITLE:
2186  codec->width = par->width;
2187  codec->height = par->height;
2188  break;
2189  }
2190 
2191  if (par->extradata) {
2192  av_freep(&codec->extradata);
2194  if (!codec->extradata)
2195  return AVERROR(ENOMEM);
2196  memcpy(codec->extradata, par->extradata, par->extradata_size);
2197  codec->extradata_size = par->extradata_size;
2198  }
2199 
2200  return 0;
2201 }
2202 
2203 static unsigned bcd2uint(uint8_t bcd)
2204 {
2205  unsigned low = bcd & 0xf;
2206  unsigned high = bcd >> 4;
2207  if (low > 9 || high > 9)
2208  return 0;
2209  return low + 10*high;
2210 }
2211 
2212 int ff_alloc_timecode_sei(const AVFrame *frame, AVRational rate, size_t prefix_len,
2213  void **data, size_t *sei_size)
2214 {
2215  AVFrameSideData *sd = NULL;
2216  uint8_t *sei_data;
2217  PutBitContext pb;
2218  uint32_t *tc;
2219  int m;
2220 
2221  if (frame)
2223 
2224  if (!sd) {
2225  *data = NULL;
2226  return 0;
2227  }
2228  tc = (uint32_t*)sd->data;
2229  m = tc[0] & 3;
2230 
2231  *sei_size = sizeof(uint32_t) * 4;
2232  *data = av_mallocz(*sei_size + prefix_len);
2233  if (!*data)
2234  return AVERROR(ENOMEM);
2235  sei_data = (uint8_t*)*data + prefix_len;
2236 
2237  init_put_bits(&pb, sei_data, *sei_size);
2238  put_bits(&pb, 2, m); // num_clock_ts
2239 
2240  for (int j = 1; j <= m; j++) {
2241  uint32_t tcsmpte = tc[j];
2242  unsigned hh = bcd2uint(tcsmpte & 0x3f); // 6-bit hours
2243  unsigned mm = bcd2uint(tcsmpte>>8 & 0x7f); // 7-bit minutes
2244  unsigned ss = bcd2uint(tcsmpte>>16 & 0x7f); // 7-bit seconds
2245  unsigned ff = bcd2uint(tcsmpte>>24 & 0x3f); // 6-bit frames
2246  unsigned drop = tcsmpte & 1<<30 && !0; // 1-bit drop if not arbitrary bit
2247 
2248  /* Calculate frame number of HEVC by SMPTE ST 12-1:2014 Sec 12.2 if rate > 30FPS */
2249  if (av_cmp_q(rate, (AVRational) {30, 1}) == 1) {
2250  unsigned pc;
2251  ff *= 2;
2252  if (av_cmp_q(rate, (AVRational) {50, 1}) == 0)
2253  pc = !!(tcsmpte & 1 << 7);
2254  else
2255  pc = !!(tcsmpte & 1 << 23);
2256  ff = (ff + pc) & 0x7f;
2257  }
2258 
2259  put_bits(&pb, 1, 1); // clock_timestamp_flag
2260  put_bits(&pb, 1, 1); // units_field_based_flag
2261  put_bits(&pb, 5, 0); // counting_type
2262  put_bits(&pb, 1, 1); // full_timestamp_flag
2263  put_bits(&pb, 1, 0); // discontinuity_flag
2264  put_bits(&pb, 1, drop);
2265  put_bits(&pb, 9, ff);
2266  put_bits(&pb, 6, ss);
2267  put_bits(&pb, 6, mm);
2268  put_bits(&pb, 5, hh);
2269  put_bits(&pb, 5, 0);
2270  }
2271  flush_put_bits(&pb);
2272 
2273  return 0;
2274 }
2275 
2277 {
2278  AVRational framerate = avctx->framerate;
2279  int bits_per_coded_sample = avctx->bits_per_coded_sample;
2280  int64_t bitrate;
2281 
2282  if (!(framerate.num && framerate.den))
2283  framerate = av_inv_q(avctx->time_base);
2284  if (!(framerate.num && framerate.den))
2285  return 0;
2286 
2287  if (!bits_per_coded_sample) {
2289  bits_per_coded_sample = av_get_bits_per_pixel(desc);
2290  }
2291  bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
2292  framerate.num / framerate.den;
2293 
2294  return bitrate;
2295 }
2296 
2297 int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
2298  const int * array_valid_values, int default_value)
2299 {
2300  int i = 0, ref_val;
2301 
2302  while (1) {
2303  ref_val = array_valid_values[i];
2304  if (ref_val == INT_MAX)
2305  break;
2306  if (val == ref_val)
2307  return val;
2308  i++;
2309  }
2310  /* val is not a valid value */
2311  av_log(ctx, AV_LOG_DEBUG,
2312  "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
2313  return default_value;
2314 }
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:2276
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
Definition: internal.h:48
#define FF_SANE_NB_CHANNELS
Definition: internal.h:97
#define FF_COMPLIANCE_EXPERIMENTAL
Allow nonstandardized experimental things.
Definition: avcodec.h:1594
packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
Definition: pixfmt.h:81
AVCodecHWConfig public
This is the structure which will be returned to the user by avcodec_get_hw_config().
Definition: hwconfig.h:34
int nb_draining_errors
Definition: internal.h:197
enum AVChromaLocation chroma_location
Definition: codec_par.h:150
float, planar
Definition: samplefmt.h:69
#define FF_SUB_CHARENC_MODE_PRE_DECODER
the AVPacket data needs to be recoded to UTF-8 before being fed to the decoder, requires iconv ...
Definition: avcodec.h:2127
#define NULL
Definition: coverity.c:32
int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
Select the (possibly hardware accelerated) pixel format.
Definition: decode.c:1299
const struct AVCodec * codec
Definition: avcodec.h:535
planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:166
AVRational framerate
Definition: avcodec.h:2069
enum AVFieldOrder field_order
Video only.
Definition: codec_par.h:141
static int64_t get_bit_rate(AVCodecContext *ctx)
Definition: utils.c:502
const AVCodecDescriptor * codec_descriptor
AVCodecDescriptor.
Definition: avcodec.h:2090
planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
Definition: pixfmt.h:275
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:252
enum AVColorTransferCharacteristic color_trc
Definition: codec_par.h:148
int(* receive_packet)(struct AVCodecContext *avctx, struct AVPacket *avpkt)
Encode API with decoupled frame/packet dataflow.
Definition: codec.h:291
#define AV_NUM_DATA_POINTERS
Definition: frame.h:309
static int shift(int a, int b)
Definition: sonic.c:82
planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:245
#define FF_SUB_CHARENC_MODE_AUTOMATIC
libavcodec will select the mode itself
Definition: avcodec.h:2126
static AVMutex mutex
Definition: log.c:44
int64_t pts_correction_num_faulty_dts
Number of incorrect PTS values so far.
Definition: avcodec.h:2107
void av_buffer_unref(AVBufferRef **buf)
Free a given reference and automatically free the buffer if there are no more references to it...
Definition: buffer.c:125
unsigned int fourcc
Definition: raw.h:36
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2573
This structure describes decoded (raw) audio or video data.
Definition: frame.h:308
int av_codec_is_encoder(const AVCodec *codec)
Definition: utils.c:96
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:100
planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:249
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:159
const struct AVCodecHWConfigInternal ** hw_configs
Array of pointers to hardware configurations supported by the codec, or NULL if no hardware supported...
Definition: codec.h:323
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Copy the contents of src to dst.
Definition: utils.c:2071
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:714
AVPacket * last_pkt_props
Properties (timestamps+side data) extracted from the last packet passed for decoding.
Definition: internal.h:147
const char * desc
Definition: libsvtav1.c:79
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
misc image utilities
static void put_bits(Jpeg2000EncoderContext *s, int val, int n)
put n times val bit
Definition: j2kenc.c:218
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:200
AVFrame * f
Definition: thread.h:35
int64_t bit_rate
the average bitrate
Definition: avcodec.h:576
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), 12b alpha, little-endian ...
Definition: pixfmt.h:346
AVFrame * to_free
Definition: internal.h:134
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
uint8_t pi<< 24) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_U8,(uint64_t)((*(const uint8_t *) pi-0x80U))<< 56) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16,(*(const int16_t *) pi >>8)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_S16,*(const int16_t *) pi *(1<< 16)) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S16,(uint64_t)(*(const int16_t *) pi)<< 48) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16,*(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16,*(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32,(*(const int32_t *) pi >>24)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S32,(uint64_t)(*(const int32_t *) pi)<< 32) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32,*(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32,*(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S64,(*(const int64_t *) pi >>56)+0x80) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S64,*(const int64_t *) pi *(1.0f/(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64,*(const int64_t *) pi *(1.0/(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(const float *) pi *(UINT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(const double *) pi *(UINT64_C(1)<< 63)))#define FMT_PAIR_FUNC(out, in) static conv_func_type *const fmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB *AV_SAMPLE_FMT_NB]={FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64),};static void cpy1(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, len);}static void cpy2(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 2 *len);}static void cpy4(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 4 *len);}static void cpy8(uint8_t **dst, const uint8_t **src, int len){memcpy(*dst,*src, 8 *len);}AudioConvert *swri_audio_convert_alloc(enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, const int *ch_map, int flags){AudioConvert *ctx;conv_func_type *f=fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt)+AV_SAMPLE_FMT_NB *av_get_packed_sample_fmt(in_fmt)];if(!f) return NULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) return NULL;if(channels==1){in_fmt=av_get_planar_sample_fmt(in_fmt);out_fmt=av_get_planar_sample_fmt(out_fmt);}ctx->channels=channels;ctx->conv_f=f;ctx->ch_map=ch_map;if(in_fmt==AV_SAMPLE_FMT_U8||in_fmt==AV_SAMPLE_FMT_U8P) memset(ctx->silence, 0x80, sizeof(ctx->silence));if(out_fmt==in_fmt &&!ch_map){switch(av_get_bytes_per_sample(in_fmt)){case 1:ctx->simd_f=cpy1;break;case 2:ctx->simd_f=cpy2;break;case 4:ctx->simd_f=cpy4;break;case 8:ctx->simd_f=cpy8;break;}}if(HAVE_X86ASM &&1) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);return ctx;}void swri_audio_convert_free(AudioConvert **ctx){av_freep(ctx);}int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len){int ch;int off=0;const int os=(out->planar?1:out->ch_count)*out->bps;unsigned misaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask){int planes=in->planar?in->ch_count:1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;}if(ctx->out_simd_align_mask){int planes=out->planar?out->ch_count:1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;}if(ctx->simd_f &&!ctx->ch_map &&!misaligned){off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){if(out->planar==in->planar){int planes=out->planar?out->ch_count:1;for(ch=0;ch< planes;ch++){ctx->simd_f(out->ch+ch,(const uint8_t **) in->ch+ch, off *(out-> planar
Definition: audioconvert.c:56
const char * g
Definition: vf_curves.c:115
#define LIBAVCODEC_VERSION_MICRO
Definition: version.h:32
planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:162
int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
Return the number of bits per pixel used by the pixel format described by pixdesc.
Definition: pixdesc.c:2525
int(* receive_frame)(struct AVCodecContext *avctx, struct AVFrame *frame)
Decode API with decoupled packet/frame dataflow.
Definition: codec.h:298
AVRational sample_aspect_ratio
Video only.
Definition: codec_par.h:136
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:1432
void(* flush)(struct AVCodecContext *)
Flush buffers.
Definition: codec.h:303
#define AV_CODEC_CAP_ENCODER_FLUSH
This encoder can be flushed using avcodec_flush_buffers().
Definition: codec.h:171
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:250
void av_opt_set_defaults(void *s)
Set the values of all AVOption fields to their default values.
Definition: opt.c:1357
const char * avcodec_configuration(void)
Return the libavcodec build-time configuration.
Definition: utils.c:1475
uint32_t fourcc
Definition: vaapi_decode.c:239
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:1161
int ff_decode_bsfs_init(AVCodecContext *avctx)
Called during avcodec_open2() to initialize avctx->internal->bsf.
Definition: decode.c:214
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: codec_par.h:60
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
int num
Numerator.
Definition: rational.h:59
Timecode which conforms to SMPTE ST 12-1.
Definition: frame.h:168
static int ff_mutex_lock(AVMutex *mutex)
Definition: thread.h:168
#define FF_SUB_CHARENC_MODE_DO_NOTHING
do nothing (demuxer outputs a stream supposed to be already in UTF-8, or the codec is bitmap for inst...
Definition: avcodec.h:2125
static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
Definition: utils.c:526
int av_codec_is_decoder(const AVCodec *codec)
Definition: utils.c:101
const char * avcodec_license(void)
Return the libavcodec license.
Definition: utils.c:1480
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown) That is the width of a pixel divided by the height of the pixel...
Definition: avcodec.h:905
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition: pixfmt.h:189
double, planar
Definition: samplefmt.h:70
enum AVMediaType codec_type
Definition: rtp.c:37
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:36
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:736
#define tc
Definition: regdef.h:69
enum AVPixelFormat pix_fmt
Definition: raw.h:35
int av_dict_copy(AVDictionary **dst, const AVDictionary *src, int flags)
Copy entries from one AVDictionary struct into another.
Definition: dict.c:217
enum AVPixelFormat format
The pixel format identifying the underlying HW surface type.
Definition: hwcontext.h:209
unsigned num_rects
Definition: avcodec.h:2698
int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec)
Definition: utils.c:498
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:72
planar GBR 4:4:4 36bpp, little-endian
Definition: pixfmt.h:255
The following 12 formats have the disadvantage of needing 1 format for each bit depth.
Definition: pixfmt.h:156
#define AV_CODEC_CAP_EXPERIMENTAL
Codec is experimental and is thus avoided in favor of non experimental encoders.
Definition: codec.h:98
mpegvideo header.
enum AVMediaType type
Definition: codec.h:203
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:237
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:1757
enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
Wrapper around get_format() for frame-multithreaded codecs.
Definition: utils.c:1894
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:1856
int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
Converts AVChromaLocation to swscale x/y chroma position.
Definition: utils.c:355
#define AV_CODEC_CAP_AUTO_THREADS
Codec supports avctx->thread_count == 0 (auto).
Definition: codec.h:118
const struct AVHWAccel * hwaccel
Hardware accelerator in use.
Definition: avcodec.h:1690
void av_bsf_flush(AVBSFContext *ctx)
Reset the internal bitstream filter state.
Definition: bsf.c:188
int trailing_padding
Audio only.
Definition: codec_par.h:196
int profile
profile
Definition: avcodec.h:1859
planar GBR 4:4:4 36bpp, big-endian
Definition: pixfmt.h:254
AVCodec.
Definition: codec.h:190
planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:131
int framerate
Definition: h264_levels.c:65
int block_align
number of bytes per packet if constant and known or 0 Used by some WAV based audio codecs...
Definition: avcodec.h:1223
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
This struct describes the properties of an encoded stream.
Definition: codec_par.h:52
AVLockOp
Lock operation used by lockmgr.
Definition: avcodec.h:4086
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:106
char * text
0 terminated plain UTF-8 text
Definition: avcodec.h:2682
enum AVColorSpace color_space
Definition: codec_par.h:149
const char * av_color_space_name(enum AVColorSpace space)
Definition: pixdesc.c:2966
Macro definitions for various function/variable attributes.
int frame_size
Audio only.
Definition: codec_par.h:181
static AVMutex codec_mutex
Definition: utils.c:70
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:649
int av_get_channel_layout_nb_channels(uint64_t channel_layout)
Return the number of channels in the channel layout.
AVFrameSideData * av_frame_get_side_data(const AVFrame *frame, enum AVFrameSideDataType type)
Definition: frame.c:751
AVSubtitleRect ** rects
Definition: avcodec.h:2699
int(* uninit)(AVCodecContext *avctx)
Uninitialize the hwaccel private data.
Definition: avcodec.h:2548
void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
Definition: utils.c:1937
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:378
uint64_t vbv_delay
The delay between the time the packet this structure is associated with is received and the time when...
Definition: avcodec.h:490
planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), little-endian ...
Definition: pixfmt.h:179
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
Modify width and height values so that they will result in a memory buffer that is acceptable for the...
Definition: utils.c:340
#define FF_LEVEL_UNKNOWN
Definition: avcodec.h:1983
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
planar GBRA 4:4:4:4 64bpp, big-endian
Definition: pixfmt.h:216
Public dictionary API.
planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
Definition: pixfmt.h:190
static double cb(void *priv, double x, double y)
Definition: vf_geq.c:215
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
Definition: internal.h:40
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101
int export_side_data
Bit set of AV_CODEC_EXPORT_DATA_* flags, which affects the kind of metadata exported in frame...
Definition: avcodec.h:2354
void av_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
Definition: avpacket.c:64
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), 12b alpha, little-endian ...
Definition: pixfmt.h:344
enum AVSampleFormat sample_fmt
audio sample format
Definition: avcodec.h:1194
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_cold
Definition: attributes.h:88
AV_SAMPLE_FMT_U8
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:190
Opaque data information usually continuous.
Definition: avutil.h:203
int width
Video only.
Definition: codec_par.h:126
#define AV_CODEC_EXPORT_DATA_MVS
Export motion vectors through frame side data.
Definition: avcodec.h:403
8 bits with AV_PIX_FMT_RGB32 palette
Definition: pixfmt.h:77
AVOptions.
#define f(width, name)
Definition: cbs_vp9.c:255
const char * av_color_range_name(enum AVColorRange range)
Definition: pixdesc.c:2899
void * thread_ctx
Definition: internal.h:138
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:92
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
int ff_side_data_update_matrix_encoding(AVFrame *frame, enum AVMatrixEncoding matrix_encoding)
Add or update AV_FRAME_DATA_MATRIXENCODING side data.
Definition: utils.c:136
int trailing_padding
Audio only.
Definition: avcodec.h:2248
Multithreading support functions.
#define AV_NE(be, le)
Definition: common.h:50
int av_frame_ref(AVFrame *dst, const AVFrame *src)
Set up a new reference to the data described by the source frame.
Definition: frame.c:456
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:251
AVCodecParameters * avcodec_parameters_alloc(void)
Allocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0).
Definition: utils.c:2050
#define FF_CODEC_PROPERTY_LOSSLESS
Definition: avcodec.h:2192
#define LIBAVCODEC_VERSION_INT
Definition: version.h:34
int(* encode2)(struct AVCodecContext *avctx, struct AVPacket *avpkt, const struct AVFrame *frame, int *got_packet_ptr)
Encode data to an AVPacket.
Definition: codec.h:282
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:627
#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:91
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:2146
planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition: pixfmt.h:191
AVCPBProperties * ff_add_cpb_side_data(AVCodecContext *avctx)
Add a CPB properties side data to an encoding context.
Definition: utils.c:1999
Public header for CRC hash function implementation.
void * frame_thread_encoder
Definition: internal.h:157
int initial_padding
Audio only.
Definition: codec_par.h:189
Structure to hold side data for an AVFrame.
Definition: frame.h:214
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:322
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:538
planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), big-endian
Definition: pixfmt.h:276
planar GBR 4:4:4 48bpp, big-endian
Definition: pixfmt.h:174
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:100
uint32_t tag
Definition: movenc.c:1597
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:194
void av_memcpy_backptr(uint8_t *dst, int back, int cnt)
Overlapping memcpy() implementation.
Definition: mem.c:428
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:210
uint8_t * data
Definition: packet.h:307
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:1590
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
Definition: avcodec.h:1765
int av_codec_get_max_lowres(const AVCodec *codec)
Definition: utils.c:492
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
static unsigned bcd2uint(uint8_t bcd)
Definition: utils.c:2203
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:1826
ptrdiff_t size
Definition: opengl_enc.c:100
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
Definition: rational.c:35
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
Definition: avcodec.h:1750
planar YUV 4:4:0,24bpp, (1 Cr & Cb sample per 1x2 Y samples), big-endian
Definition: pixfmt.h:278
int ff_set_sar(AVCodecContext *avctx, AVRational sar)
Check that the provided sample aspect ratio is valid and set it on the codec context.
Definition: utils.c:121
#define AV_CODEC_FLAG_GRAY
Only decode/encode grayscale.
Definition: avcodec.h:308
channels
Definition: aptx.h:33
signed 32 bits
Definition: samplefmt.h:62
void * av_realloc_array(void *ptr, size_t nmemb, size_t size)
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:1985
enum AVChromaLocation chroma_sample_location
This defines the location of chroma samples.
Definition: avcodec.h:1168
static void codec_parameters_reset(AVCodecParameters *par)
Definition: utils.c:2030
#define FFALIGN(x, a)
Definition: macros.h:48
uint64_t channel_layout
Audio only.
Definition: codec_par.h:162
#define av_log(a,...)
int av_sample_fmt_is_planar(enum AVSampleFormat sample_fmt)
Check if the sample format is planar.
Definition: samplefmt.c:112
void avcodec_parameters_free(AVCodecParameters **ppar)
Free an AVCodecParameters instance and everything associated with it and write NULL to the supplied p...
Definition: utils.c:2060
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
Definition: codec_par.h:89
#define FF_COMPLIANCE_UNOFFICIAL
Allow unofficial extensions.
Definition: avcodec.h:1593
void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, int linesize_align[AV_NUM_DATA_POINTERS])
Modify width and height values so that they will result in a memory buffer that is acceptable for the...
Definition: utils.c:156
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:1850
planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:157
AVPacketList * pkt_props_tail
Definition: internal.h:149
Libavcodec version macros.
#define src
Definition: vp8dsp.c:254
av_cold int avcodec_close(AVCodecContext *avctx)
Close a given AVCodecContext and free all the data associated with it (but not the AVCodecContext its...
Definition: utils.c:1133
AVBSFContext * bsf
Definition: internal.h:141
enum AVCodecID id
Definition: codec.h:204
const uint64_t * channel_layouts
array of support channel layouts, or NULL if unknown. array is terminated by 0
Definition: codec.h:214
planar GBR 4:4:4 27bpp, big-endian
Definition: pixfmt.h:170
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:165
const char * av_chroma_location_name(enum AVChromaLocation location)
Definition: pixdesc.c:2990
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:176
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: codec_id.h:46
unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
Definition: utils.c:487
int width
Definition: frame.h:366
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:194
int has_b_frames
Size of the frame reordering buffer in the decoder.
Definition: avcodec.h:816
int av_get_bits_per_sample(enum AVCodecID codec_id)
Return codec bits per sample.
Definition: utils.c:1572
#define AVMutex
Definition: thread.h:164
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
int ff_int_from_list_or_default(void *ctx, const char *val_name, int val, const int *array_valid_values, int default_value)
Check if a value is in the list.
Definition: utils.c:2297
#define MAKE_ACCESSORS(str, name, type, field)
Definition: internal.h:91
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:136
unsigned int avpriv_toupper4(unsigned int x)
Definition: utils.c:1862
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:203
int qmax
maximum quantizer
Definition: avcodec.h:1375
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this field
int64_t pts_correction_last_pts
Number of incorrect DTS values so far.
Definition: avcodec.h:2108
AVFrame * in_frame
Definition: internal.h:116
int active_thread_type
Which multithreading methods are in use by the codec.
Definition: avcodec.h:1804
enum AVColorPrimaries color_primaries
Definition: codec_par.h:147
int avcodec_is_open(AVCodecContext *s)
Definition: utils.c:1947
int video_delay
Video only.
Definition: codec_par.h:155
const char * r
Definition: vf_curves.c:114
int av_match_list(const char *name, const char *list, char separator)
Check if a name is in a list.
Definition: avstring.c:451
AVFrame * buffer_frame
Definition: internal.h:180
int capabilities
Codec capabilities.
Definition: codec.h:209
int initial_padding
Audio only.
Definition: avcodec.h:2060
unsigned int pos
Definition: spdifenc.c:410
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:215
int ff_thread_init(AVCodecContext *s)
Definition: utils.c:1805
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values. ...
Definition: dict.c:203
preferred ID for decoding MPEG audio layer 1, 2 or 3
Definition: codec_id.h:419
#define av_fourcc2str(fourcc)
Definition: avutil.h:348
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), big-endian
Definition: pixfmt.h:182
enum AVMediaType codec_type
General type of the encoded data.
Definition: codec_par.h:56
const char * arg
Definition: jacosubdec.c:66
planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:161
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:606
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
Definition: allcodecs.c:932
simple assert() macros that are a bit more flexible than ISO C assert().
planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:248
int64_t av_gcd(int64_t a, int64_t b)
Compute the greatest common divisor of two integer operands.
Definition: mathematics.c:37
enum AVPacketSideDataType type
Definition: packet.h:309
int av_log_get_level(void)
Get the current log level.
Definition: log.c:435
const char * name
Name of the codec implementation.
Definition: codec.h:197
planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:134
const char * av_get_sample_fmt_name(enum AVSampleFormat sample_fmt)
Return the name of sample_fmt, or NULL if sample_fmt is not recognized.
Definition: samplefmt.c:49
int64_t max_pixels
The number of pixels per image to maximally accept.
Definition: avcodec.h:2256
const struct AVProfile * profiles
If non-NULL, an array of profiles recognized for this codec.
Definition: codec_desc.h:65
int ff_alloc_timecode_sei(const AVFrame *frame, AVRational rate, size_t prefix_len, void **data, size_t *sei_size)
Check AVFrame for S12M timecode side data and allocate and fill TC SEI message with timecode info...
Definition: utils.c:2212
GLsizei count
Definition: opengl_enc.c:108
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), little-endian
Definition: pixfmt.h:183
void ff_thread_free(AVCodecContext *avctx)
Definition: pthread.c:82
#define FFMAX(a, b)
Definition: common.h:94
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:1795
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: codec.h:106
const char av_codec_ffversion[]
Definition: utils.c:68
static int ff_mutex_unlock(AVMutex *mutex)
Definition: thread.h:169
const char * av_color_primaries_name(enum AVColorPrimaries primaries)
Definition: pixdesc.c:2918
reference-counted frame API
uint64_t channel_layout
Audio channel layout.
Definition: avcodec.h:1237
int extradata_size
Size of the extradata content in bytes.
Definition: codec_par.h:78
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
Definition: pixfmt.h:184
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
int rc_buffer_size
decoder bitstream buffer size
Definition: avcodec.h:1389
int props
Codec properties, a combination of AV_CODEC_PROP_* flags.
Definition: codec_desc.h:54
int ff_frame_thread_encoder_init(AVCodecContext *avctx, AVDictionary *options)
common internal API header
#define FF_MAX_EXTRADATA_SIZE
Maximum size in bytes of extradata.
Definition: internal.h:230
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:106
int refs
number of reference frames
Definition: avcodec.h:1114
planar GBR 4:4:4:4 48bpp, big-endian
Definition: pixfmt.h:287
int block_align
Audio only.
Definition: codec_par.h:177
#define ss(width, name, subs,...)
Definition: cbs_vp9.c:261
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
#define b
Definition: input.c:41
#define AV_MUTEX_INITIALIZER
Definition: thread.h:165
audio channel layout utility functions
enum AVPixelFormat * pix_fmts
array of supported pixel formats, or NULL if unknown, array is terminated by -1
Definition: codec.h:211
static struct @322 state
#define FF_THREAD_FRAME
Decode more than one frame at once.
Definition: avcodec.h:1796
#define FFMIN(a, b)
Definition: common.h:96
AVPacketSideData * coded_side_data
Additional data associated with the entire coded stream.
Definition: avcodec.h:2201
Raw Video Codec.
signed 32 bits, planar
Definition: samplefmt.h:68
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
Return codec bits per sample.
Definition: utils.c:1486
AVFrame * compat_decode_frame
Definition: internal.h:189
void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
Definition: utils.c:1941
int width
picture width / height.
Definition: avcodec.h:699
static void ff_unlock_avcodec(const AVCodec *codec)
Definition: utils.c:532
AVBufferRef * hw_frames_ctx
A reference to the AVHWFramesContext describing the input (for encoding) or output (decoding) frames...
Definition: avcodec.h:2226
#define FF_PROFILE_UNKNOWN
Definition: avcodec.h:1860
int priv_data_size
Definition: codec.h:238
int profile
Definition: codec.h:177
AVPacket * in_pkt
Definition: internal.h:112
AVFormatContext * ctx
Definition: movenc.c:48
#define AV_CODEC_FLAG_PASS1
Use internal 2pass ratecontrol in first pass mode.
Definition: avcodec.h:296
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:1140
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:188
packed YUV 4:2:2, 16bpp, Y0 Cr Y1 Cb
Definition: pixfmt.h:210
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
#define s(width, name)
Definition: cbs_vp9.c:257
int level
level
Definition: avcodec.h:1982
void ff_thread_finish_setup(AVCodecContext *avctx)
If the codec defines update_thread_context(), call this when they are ready for the next thread to st...
Definition: utils.c:1911
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), big-endian
Definition: pixfmt.h:180
const AVProfile * profiles
array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN} ...
Definition: codec.h:217
unsigned 8 bits, planar
Definition: samplefmt.h:66
int ticks_per_frame
For some codecs, the time base is closer to the field rate than the frame rate.
Definition: avcodec.h:658
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:69
planar YUV 4:2:0,18bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:243
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:158
enum AVCodecID codec_id
Definition: vaapi_decode.c:369
enum AVColorRange color_range
Video only.
Definition: codec_par.h:146
Usually treated as AVMEDIA_TYPE_DATA.
Definition: avutil.h:200
Opaque data information usually sparse.
Definition: avutil.h:205
const char * av_get_colorspace_name(enum AVColorSpace val)
Get the name of a colorspace.
Definition: frame.c:123
DecodeSimpleContext ds
Definition: internal.h:140
enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags, unsigned int fourcc)
Definition: utils.c:469
char * sub_charenc
DTS of the last frame.
Definition: avcodec.h:2116
planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:167
uint8_t * data[4]
data+linesize for the bitmap of this subtitle.
Definition: avcodec.h:2677
int draining
checks API usage: after codec draining, flush is required to resume operation
Definition: internal.h:174
#define FF_ARRAY_ELEMS(a)
#define AVERROR_EXPERIMENTAL
Requested feature is flagged experimental. Set strict_std_compliance if you really want to use it...
Definition: error.h:72
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:1785
Full range content.
Definition: pixfmt.h:586
int sub_charenc_mode
Subtitles character encoding mode.
Definition: avcodec.h:2124
if(ret)
void av_get_channel_layout_string(char *buf, int buf_size, int nb_channels, uint64_t channel_layout)
Return a description of a channel layout.
planar GBR 4:4:4:4 48bpp, little-endian
Definition: pixfmt.h:288
void avcodec_flush_buffers(AVCodecContext *avctx)
Reset the internal codec state / flush internal buffers.
Definition: utils.c:1069
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:381
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:1437
int frame_size
Number of samples per channel in an audio frame.
Definition: avcodec.h:1206
This structure describes the bitrate properties of an encoded bitstream.
Definition: avcodec.h:448
AVPacketList * pkt_props
Definition: internal.h:148
int(* decode)(struct AVCodecContext *, void *outdata, int *outdata_size, struct AVPacket *avpkt)
Definition: codec.h:284
packed RGB 3:3:2, 8bpp, (msb)2B 3G 3R(lsb)
Definition: pixfmt.h:83
static int width
Definition: utils.c:158
planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:132
int frame_size
Definition: mxfenc.c:2166
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:1845
Libavcodec external API header.
enum AVMediaType codec_type
Definition: avcodec.h:534
AVSampleFormat
Audio sample formats.
Definition: samplefmt.h:58
EncodeSimpleContext es
Definition: internal.h:159
enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
Return the PCM codec associated with a sample format.
Definition: utils.c:1550
enum AVCodecID codec_id
Definition: avcodec.h:536
int seek_preroll
Number of samples to skip after a discontinuity.
Definition: avcodec.h:2149
int av_opt_set_dict(void *obj, AVDictionary **options)
Set all the options from a given dictionary on an object.
Definition: opt.c:1655
int sample_rate
samples per second
Definition: avcodec.h:1186
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:339
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:177
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
const AVCodecHWConfig * avcodec_get_hw_config(const AVCodec *codec, int index)
Retrieve supported hardware configurations for a codec.
Definition: utils.c:1833
planar GBR 4:4:4 30bpp, big-endian
Definition: pixfmt.h:172
main external API structure.
Definition: avcodec.h:526
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:606
int skip_samples_multiplier
Definition: internal.h:194
planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
Definition: pixfmt.h:192
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it be(in the first position) for now.Options-------Then comes the options array.This is what will define the user accessible options.For example
uint8_t * data
The data buffer.
Definition: buffer.h:89
int qmin
minimum quantizer
Definition: avcodec.h:1368
void avsubtitle_free(AVSubtitle *sub)
Free all allocated data in the given subtitle struct.
Definition: utils.c:1114
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> (&#39;D&#39;<<24) + (&#39;C&#39;<<16) + (&#39;B&#39;<<8) + &#39;A&#39;).
Definition: avcodec.h:551
packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
Definition: pixfmt.h:67
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
Definition: decode.c:1879
static void encode(AVCodecContext *ctx, AVFrame *frame, AVPacket *pkt, FILE *output)
Definition: encode_audio.c:95
uint8_t * data
Definition: frame.h:216
planar YUV 4:4:0,24bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
Definition: pixfmt.h:277
#define AV_CODEC_PROP_BITMAP_SUB
Subtitle codec is bitmap based Decoded AVSubtitle data can be read from the AVSubtitleRect->pict fiel...
Definition: codec_desc.h:97
planar GBR 4:4:4 42bpp, little-endian
Definition: pixfmt.h:257
int extradata_size
Definition: avcodec.h:628
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
Encode extradata length to a buffer.
Definition: utils.c:1812
int nb_coded_side_data
Definition: avcodec.h:2202
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
Definition: pixfmt.h:193
AVCodecContext * owner[2]
Definition: thread.h:36
int coded_height
Definition: avcodec.h:714
int(* func)(AVBPrint *dst, const char *in, const char *arg)
Definition: jacosubdec.c:67
Describe the class of an AVClass context structure.
Definition: log.h:67
AVPacket * compat_encode_packet
Definition: internal.h:190
#define FF_CODEC_PROPERTY_CLOSED_CAPTIONS
Definition: avcodec.h:2193
int(* init)(struct AVCodecContext *)
Definition: codec.h:269
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition: pixfmt.h:195
AVFrameSideData * av_frame_new_side_data(AVFrame *frame, enum AVFrameSideDataType type, int size)
Add a new side data to a frame.
Definition: frame.c:739
static av_const int av_toupper(int c)
Locale-independent conversion of ASCII characters to uppercase.
Definition: avstring.h:236
Y , 16bpp, big-endian.
Definition: pixfmt.h:97
int index
Definition: gxfenc.c:89
int av_samples_get_buffer_size(int *linesize, int nb_channels, int nb_samples, enum AVSampleFormat sample_fmt, int align)
Get the required buffer size for the given audio parameters.
Definition: samplefmt.c:119
enum AVColorSpace colorspace
YUV colorspace type.
Definition: avcodec.h:1154
Rational number (pair of numerator and denominator).
Definition: rational.h:58
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:1147
void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
Wrapper around release_buffer() frame-for multithreaded codecs.
Definition: utils.c:1905
const char * name
short name for the profile
Definition: codec.h:178
int avcodec_parameters_from_context(AVCodecParameters *par, const AVCodecContext *codec)
Fill the parameters struct based on the values from the supplied codec context.
Definition: utils.c:2089
This struct describes a set or pool of "hardware" frames (i.e.
Definition: hwcontext.h:124
planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:244
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), 12b alpha, big-endian ...
Definition: pixfmt.h:345
size_t av_strlcatf(char *dst, size_t size, const char *fmt,...)
Definition: avstring.c:101
planar GBR 4:4:4 42bpp, big-endian
Definition: pixfmt.h:256
char * codec_whitelist
&#39;,&#39; separated list of allowed decoders.
Definition: avcodec.h:2184
planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), big-endian
Definition: pixfmt.h:178
const VDPAUPixFmtMap * map
#define STRIDE_ALIGN
Definition: internal.h:108
const char * name
Name of the codec described by this descriptor.
Definition: codec_desc.h:46
int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Initialize the AVCodecContext to use the given AVCodec.
Definition: utils.c:550
#define snprintf
Definition: snprintf.h:34
int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
Return audio frame duration.
Definition: utils.c:1786
attribute_deprecated int refcounted_frames
If non-zero, the decoded audio and video frames returned from avcodec_decode_video2() and avcodec_dec...
Definition: avcodec.h:1357
AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
Definition: allcodecs.c:937
AVBufferRef * pool
Definition: internal.h:136
size_t av_strlcat(char *dst, const char *src, size_t size)
Append the string src to the string dst, but to a total length of no more than size - 1 bytes...
Definition: avstring.c:93
mfxU16 profile
Definition: qsvenc.c:45
int seek_preroll
Audio only.
Definition: codec_par.h:200
This struct describes the properties of a single codec described by an AVCodecID. ...
Definition: codec_desc.h:38
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:566
const char * av_get_media_type_string(enum AVMediaType media_type)
Return a string describing the media_type enum, NULL if media_type is unknown.
Definition: utils.c:76
planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
Definition: pixfmt.h:187
#define flags(name, subs,...)
Definition: cbs_av1.c:560
int bits_per_raw_sample
This is the number of valid bits in each output sample.
Definition: codec_par.h:115
const AVClass * priv_class
AVClass for the private context.
Definition: codec.h:216
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:322
planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:163
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:135
int av_get_bytes_per_sample(enum AVSampleFormat sample_fmt)
Return number of bytes per sample.
Definition: samplefmt.c:106
void ff_color_frame(AVFrame *frame, const int c[4])
Definition: utils.c:414
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
Definition: rational.h:159
int sample_rate
Audio only.
Definition: codec_par.h:170
enum AVMediaType type
Definition: codec_desc.h:40
uint8_t max_lowres
maximum value for lowres supported by the decoder
Definition: codec.h:215
AVPacket * buffer_pkt
buffers for using new encode/decode API through legacy API
Definition: internal.h:179
int64_t bitrate
Definition: h264_levels.c:131
static int av_cmp_q(AVRational a, AVRational b)
Compare two rationals.
Definition: rational.h:89
static int op(uint8_t **dst, const uint8_t *dst_end, GetByteContext *gb, int pixel, int count, int *x, int width, int linesize)
Perform decode operation.
Definition: anm.c:75
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:247
Y , 8bpp.
Definition: pixfmt.h:74
void av_opt_free(void *obj)
Free all allocated objects in obj.
Definition: opt.c:1610
const OptionDef options[]
Definition: ffmpeg_opt.c:3400
#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:367
static void flush_put_bits(PutBitContext *s)
Pad the end of the output stream with zeros.
Definition: put_bits.h:117
#define FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM
The decoder extracts and fills its parameters even if the frame is skipped due to the skip_frame sett...
Definition: internal.h:60
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:215
signed 16 bits
Definition: samplefmt.h:61
planar GBR 4:4:4 27bpp, little-endian
Definition: pixfmt.h:171
int profile
Codec-specific bitstream restrictions that the stream conforms to.
Definition: codec_par.h:120
const char * av_color_transfer_name(enum AVColorTransferCharacteristic transfer)
Definition: pixdesc.c:2942
int(* encode_sub)(struct AVCodecContext *, uint8_t *buf, int buf_size, const struct AVSubtitle *sub)
Definition: codec.h:270
void * hwaccel_priv_data
hwaccel-specific private data
Definition: internal.h:169
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:84
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
AVProfile.
Definition: codec.h:176
planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:133
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
int ff_thread_can_start_frame(AVCodecContext *avctx)
Definition: utils.c:1923
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:1776
void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
Notify later decoding threads when part of their reference picture is ready.
Definition: utils.c:1915
packed RGB 3:3:2, 8bpp, (msb)2R 3G 3B(lsb)
Definition: pixfmt.h:86
static const uint64_t c2
Definition: murmur3.c:50
#define AV_PIX_FMT_RGB555
Definition: pixfmt.h:387
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
int caps_internal
Internal codec capabilities.
Definition: codec.h:308
const char * avcodec_get_name(enum AVCodecID id)
Get the name of a codec.
Definition: utils.c:1200
unsigned properties
Properties of the stream that gets decoded.
Definition: avcodec.h:2191
static void init_put_bits(PutBitContext *s, uint8_t *buffer, int buffer_size)
Initialize the PutBitContext s.
Definition: put_bits.h:64
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:456
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:288
unsigned bps
Definition: movenc.c:1598
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition: pixfmt.h:185
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
Definition: avcodec.h:215
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
Definition: utils.c:1242
#define AV_CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:300
static int lowres
Definition: ffplay.c:336
void * priv_data
Definition: avcodec.h:553
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:1221
int(* close)(struct AVCodecContext *)
Definition: codec.h:285
int av_samples_fill_arrays(uint8_t **audio_data, int *linesize, const uint8_t *buf, int nb_channels, int nb_samples, enum AVSampleFormat sample_fmt, int align)
Fill plane data pointers and linesize for samples with sample format sample_fmt.
Definition: samplefmt.c:151
void ff_thread_flush(AVCodecContext *avctx)
Wait for decoding threads to finish and reset internal state.
uint8_t * dump_separator
dump format separator.
Definition: avcodec.h:2176
int ff_thread_ref_frame(ThreadFrame *dst, const ThreadFrame *src)
Definition: utils.c:1870
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:85
#define TAG_PRINT(x)
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:253
as in Berlin toast format
Definition: codec_id.h:436
int len
int channels
number of audio channels
Definition: avcodec.h:1187
const int * supported_samplerates
array of supported audio samplerates, or NULL if unknown, array is terminated by 0 ...
Definition: codec.h:212
struct AVCodecInternal * internal
Private context used for internal data.
Definition: avcodec.h:561
unsigned avcodec_version(void)
Return the LIBAVCODEC_VERSION_INT constant.
Definition: utils.c:1465
Y , 16bpp, little-endian.
Definition: pixfmt.h:98
AVPacket * av_packet_alloc(void)
Allocate an AVPacket and set its fields to default values.
Definition: avpacket.c:53
char * ass
0 terminated ASS/SSA compatible event line.
Definition: avcodec.h:2689
This side data corresponds to the AVCPBProperties struct.
Definition: packet.h:145
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:258
Not part of ABI.
Definition: pixfmt.h:613
signed 64 bits, planar
Definition: samplefmt.h:72
const AVCodecDescriptor * avcodec_descriptor_get(enum AVCodecID id)
Definition: codec_desc.c:3457
int flags2
AV_CODEC_FLAG2_*.
Definition: avcodec.h:613
int bits_per_coded_sample
The number of bits per sample in the codedwords.
Definition: codec_par.h:102
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: codec_par.h:74
static const struct twinvq_data tab
unsigned int byte_buffer_size
Definition: internal.h:155
int channels
Audio only.
Definition: codec_par.h:166
void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
Wait for earlier decoding threads to finish reference pictures.
Definition: utils.c:1919
planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
Definition: pixfmt.h:186
static int height
Definition: utils.c:158
#define AV_CODEC_FLAG2_EXPORT_MVS
Export motion vectors through frame side data.
Definition: avcodec.h:380
AVRational av_mul_q(AVRational b, AVRational c)
Multiply two rationals.
Definition: rational.c:80
int64_t pts_correction_last_dts
PTS of the last frame.
Definition: avcodec.h:2109
int frame_number
Frame counter, set by libavcodec.
Definition: avcodec.h:1217
int height
Definition: frame.h:366
void ff_frame_thread_encoder_free(AVCodecContext *avctx)
#define av_freep(p)
int64_t pts_correction_num_faulty_pts
Current statistics for PTS correction.
Definition: avcodec.h:2106
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
enum AVFieldOrder field_order
Field order.
Definition: avcodec.h:1183
signed 16 bits, planar
Definition: samplefmt.h:67
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:605
static float sub(float src0, float src1)
void av_bsf_free(AVBSFContext **pctx)
Free a bitstream filter context and everything associated with it; write NULL into the supplied point...
Definition: bsf.c:40
planar GBR 4:4:4 48bpp, little-endian
Definition: pixfmt.h:175
enum AVSampleFormat * sample_fmts
array of supported sample formats, or NULL if unknown, array is terminated by -1
Definition: codec.h:213
AVMatrixEncoding
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
Definition: utils.c:1899
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
Definition: codec_par.h:64
int ff_alloc_entries(AVCodecContext *avctx, int count)
Definition: utils.c:1928
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:2489
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), little-endian
Definition: pixfmt.h:181
const uint8_t * avpriv_find_start_code(const uint8_t *av_restrict p, const uint8_t *end, uint32_t *av_restrict state)
Definition: utils.c:1952
void ff_reset_entries(AVCodecContext *avctx)
Definition: utils.c:1933
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
int depth
Number of bits in the component.
Definition: pixdesc.h:58
uint8_t ** extended_data
pointers to the data planes/channels.
Definition: frame.h:355
planar GBRA 4:4:4:4 64bpp, little-endian
Definition: pixfmt.h:217
AVBufferRef * hw_device_ctx
A reference to the AVHWDeviceContext describing the device which will be used by a hardware encoder/d...
Definition: avcodec.h:2278
packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3
Definition: pixfmt.h:82
enum AVPixelFormat sw_format
The pixel format identifying the actual data layout of the hardware frames.
Definition: hwcontext.h:222
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
static double val(void *priv, double ch)
Definition: aeval.c:76
uint8_t * byte_buffer
temporary buffer used for encoders to store their bitstream
Definition: internal.h:154
const char * avcodec_profile_name(enum AVCodecID codec_id, int profile)
Return a name for the specified profile, if available.
Definition: utils.c:1450
static int ff_fast_malloc(void *ptr, unsigned int *size, size_t min_size, int zero_realloc)
Definition: mem_internal.h:27
int delay
Codec delay.
Definition: avcodec.h:682
int nb_samples
number of audio samples (per channel) described by this frame
Definition: frame.h:374
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
Definition: pixdesc.h:144
int strict_std_compliance
strictly follow the standard (MPEG-4, ...).
Definition: avcodec.h:1589
planar YUV 4:2:0,18bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:242
The data is the AVMatrixEncoding enum defined in libavutil/channel_layout.h.
Definition: frame.h:67
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:164
enum AVPixelFormat sw_pix_fmt
Nominal unaccelerated pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:2076
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:246
int i
Definition: input.c:407
#define FFMAX3(a, b, c)
Definition: common.h:95
planar GBR 4:4:4 30bpp, little-endian
Definition: pixfmt.h:173
int avcodec_default_execute(AVCodecContext *c, int(*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
Definition: utils.c:443
int64_t rc_max_rate
maximum bitrate
Definition: avcodec.h:1404
void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.c:190
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
void avpriv_packet_list_free(AVPacketList **pkt_buf, AVPacketList **pkt_buf_end)
Wipe the list and unref all the packets in it.
Definition: avpacket.c:782
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), 12b alpha, big-endian ...
Definition: pixfmt.h:343
uint8_t * subtitle_header
Header containing style information for text subtitles.
Definition: avcodec.h:2014
static uint8_t tmp[11]
Definition: aes_ctr.c:26
planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:160
bitstream writer API