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/avassert.h"
30 #include "libavutil/avstring.h"
31 #include "libavutil/intreadwrite.h"
32 #include "libavutil/mem_internal.h"
33 #include "libavutil/pixdesc.h"
34 #include "libavutil/imgutils.h"
35 #include "libavutil/pixfmt.h"
36 #include "avcodec.h"
37 #include "codec.h"
38 #include "hwconfig.h"
39 #include "thread.h"
40 #include "internal.h"
41 #include "put_bits.h"
42 #include "raw.h"
43 #include "version.h"
44 #include <stdlib.h>
45 #include <stdarg.h>
46 #include <stdatomic.h>
47 #include <limits.h>
48 #include <float.h>
49 
50 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
51 {
52  uint8_t **p = ptr;
53  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
54  av_freep(p);
55  *size = 0;
56  return;
57  }
58  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
59  memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
60 }
61 
62 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
63 {
64  uint8_t **p = ptr;
65  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
66  av_freep(p);
67  *size = 0;
68  return;
69  }
70  if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
71  memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
72 }
73 
74 int av_codec_is_encoder(const AVCodec *codec)
75 {
76  return codec && (codec->encode_sub || codec->encode2 || codec->receive_packet);
77 }
78 
79 int av_codec_is_decoder(const AVCodec *codec)
80 {
81  return codec && (codec->decode || codec->receive_frame);
82 }
83 
85 {
86  int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
87 
88  if (ret < 0)
89  width = height = 0;
90 
91  s->coded_width = width;
92  s->coded_height = height;
93  s->width = AV_CEIL_RSHIFT(width, s->lowres);
94  s->height = AV_CEIL_RSHIFT(height, s->lowres);
95 
96  return ret;
97 }
98 
100 {
101  int ret = av_image_check_sar(avctx->width, avctx->height, sar);
102 
103  if (ret < 0) {
104  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
105  sar.num, sar.den);
106  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
107  return ret;
108  } else {
109  avctx->sample_aspect_ratio = sar;
110  }
111  return 0;
112 }
113 
115  enum AVMatrixEncoding matrix_encoding)
116 {
117  AVFrameSideData *side_data;
118  enum AVMatrixEncoding *data;
119 
121  if (!side_data)
123  sizeof(enum AVMatrixEncoding));
124 
125  if (!side_data)
126  return AVERROR(ENOMEM);
127 
128  data = (enum AVMatrixEncoding*)side_data->data;
129  *data = matrix_encoding;
130 
131  return 0;
132 }
133 
135  int linesize_align[AV_NUM_DATA_POINTERS])
136 {
137  int i;
138  int w_align = 1;
139  int h_align = 1;
140  AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
141 
142  if (desc) {
143  w_align = 1 << desc->log2_chroma_w;
144  h_align = 1 << desc->log2_chroma_h;
145  }
146 
147  switch (s->pix_fmt) {
148  case AV_PIX_FMT_YUV420P:
149  case AV_PIX_FMT_YUYV422:
150  case AV_PIX_FMT_YVYU422:
151  case AV_PIX_FMT_UYVY422:
152  case AV_PIX_FMT_YUV422P:
153  case AV_PIX_FMT_YUV440P:
154  case AV_PIX_FMT_YUV444P:
155  case AV_PIX_FMT_GBRP:
156  case AV_PIX_FMT_GBRAP:
157  case AV_PIX_FMT_GRAY8:
158  case AV_PIX_FMT_GRAY16BE:
159  case AV_PIX_FMT_GRAY16LE:
160  case AV_PIX_FMT_YUVJ420P:
161  case AV_PIX_FMT_YUVJ422P:
162  case AV_PIX_FMT_YUVJ440P:
163  case AV_PIX_FMT_YUVJ444P:
164  case AV_PIX_FMT_YUVA420P:
165  case AV_PIX_FMT_YUVA422P:
166  case AV_PIX_FMT_YUVA444P:
223  case AV_PIX_FMT_GBRP9LE:
224  case AV_PIX_FMT_GBRP9BE:
225  case AV_PIX_FMT_GBRP10LE:
226  case AV_PIX_FMT_GBRP10BE:
227  case AV_PIX_FMT_GBRP12LE:
228  case AV_PIX_FMT_GBRP12BE:
229  case AV_PIX_FMT_GBRP14LE:
230  case AV_PIX_FMT_GBRP14BE:
231  case AV_PIX_FMT_GBRP16LE:
232  case AV_PIX_FMT_GBRP16BE:
237  w_align = 16; //FIXME assume 16 pixel per macroblock
238  h_align = 16 * 2; // interlaced needs 2 macroblocks height
239  break;
240  case AV_PIX_FMT_YUV411P:
241  case AV_PIX_FMT_YUVJ411P:
243  w_align = 32;
244  h_align = 16 * 2;
245  break;
246  case AV_PIX_FMT_YUV410P:
247  if (s->codec_id == AV_CODEC_ID_SVQ1) {
248  w_align = 64;
249  h_align = 64;
250  }
251  break;
252  case AV_PIX_FMT_RGB555:
253  if (s->codec_id == AV_CODEC_ID_RPZA) {
254  w_align = 4;
255  h_align = 4;
256  }
257  if (s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
258  w_align = 8;
259  h_align = 8;
260  }
261  break;
262  case AV_PIX_FMT_PAL8:
263  case AV_PIX_FMT_BGR8:
264  case AV_PIX_FMT_RGB8:
265  if (s->codec_id == AV_CODEC_ID_SMC ||
266  s->codec_id == AV_CODEC_ID_CINEPAK) {
267  w_align = 4;
268  h_align = 4;
269  }
270  if (s->codec_id == AV_CODEC_ID_JV ||
271  s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
272  w_align = 8;
273  h_align = 8;
274  }
275  if (s->codec_id == AV_CODEC_ID_MJPEG ||
276  s->codec_id == AV_CODEC_ID_MJPEGB ||
277  s->codec_id == AV_CODEC_ID_LJPEG ||
278  s->codec_id == AV_CODEC_ID_SMVJPEG ||
279  s->codec_id == AV_CODEC_ID_AMV ||
280  s->codec_id == AV_CODEC_ID_SP5X ||
281  s->codec_id == AV_CODEC_ID_JPEGLS) {
282  w_align = 8;
283  h_align = 2*8;
284  }
285  break;
286  case AV_PIX_FMT_BGR24:
287  if ((s->codec_id == AV_CODEC_ID_MSZH) ||
288  (s->codec_id == AV_CODEC_ID_ZLIB)) {
289  w_align = 4;
290  h_align = 4;
291  }
292  break;
293  case AV_PIX_FMT_RGB24:
294  if (s->codec_id == AV_CODEC_ID_CINEPAK) {
295  w_align = 4;
296  h_align = 4;
297  }
298  break;
299  default:
300  break;
301  }
302 
303  if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
304  w_align = FFMAX(w_align, 8);
305  }
306 
307  *width = FFALIGN(*width, w_align);
308  *height = FFALIGN(*height, h_align);
309  if (s->codec_id == AV_CODEC_ID_H264 || s->lowres ||
310  s->codec_id == AV_CODEC_ID_VP5 || s->codec_id == AV_CODEC_ID_VP6 ||
311  s->codec_id == AV_CODEC_ID_VP6F || s->codec_id == AV_CODEC_ID_VP6A
312  ) {
313  // some of the optimized chroma MC reads one line too much
314  // which is also done in mpeg decoders with lowres > 0
315  *height += 2;
316 
317  // H.264 uses edge emulation for out of frame motion vectors, for this
318  // it requires a temporary area large enough to hold a 21x21 block,
319  // increasing witdth ensure that the temporary area is large enough,
320  // the next rounded up width is 32
321  *width = FFMAX(*width, 32);
322  }
323 
324  for (i = 0; i < 4; i++)
325  linesize_align[i] = STRIDE_ALIGN;
326 }
327 
329 {
330  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
331  int chroma_shift = desc->log2_chroma_w;
332  int linesize_align[AV_NUM_DATA_POINTERS];
333  int align;
334 
335  avcodec_align_dimensions2(s, width, height, linesize_align);
336  align = FFMAX(linesize_align[0], linesize_align[3]);
337  linesize_align[1] <<= chroma_shift;
338  linesize_align[2] <<= chroma_shift;
339  align = FFMAX3(align, linesize_align[1], linesize_align[2]);
340  *width = FFALIGN(*width, align);
341 }
342 
343 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
344 {
345  if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
346  return AVERROR(EINVAL);
347  pos--;
348 
349  *xpos = (pos&1) * 128;
350  *ypos = ((pos>>1)^(pos<4)) * 128;
351 
352  return 0;
353 }
354 
356 {
357  int pos, xout, yout;
358 
360  if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
361  return pos;
362  }
364 }
365 
367  enum AVSampleFormat sample_fmt, const uint8_t *buf,
368  int buf_size, int align)
369 {
370  int ch, planar, needed_size, ret = 0;
371 
373  frame->nb_samples, sample_fmt,
374  align);
375  if (buf_size < needed_size)
376  return AVERROR(EINVAL);
377 
378  planar = av_sample_fmt_is_planar(sample_fmt);
380  if (!(frame->extended_data = av_mallocz_array(nb_channels,
381  sizeof(*frame->extended_data))))
382  return AVERROR(ENOMEM);
383  } else {
384  frame->extended_data = frame->data;
385  }
386 
387  if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
388  (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
389  sample_fmt, align)) < 0) {
390  if (frame->extended_data != frame->data)
391  av_freep(&frame->extended_data);
392  return ret;
393  }
394  if (frame->extended_data != frame->data) {
395  for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
396  frame->data[ch] = frame->extended_data[ch];
397  }
398 
399  return ret;
400 }
401 
402 void ff_color_frame(AVFrame *frame, const int c[4])
403 {
405  int p, y;
406 
408 
409  for (p = 0; p<desc->nb_components; p++) {
410  uint8_t *dst = frame->data[p];
411  int is_chroma = p == 1 || p == 2;
412  int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
413  int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
414  if (desc->comp[0].depth >= 9) {
415  ((uint16_t*)dst)[0] = c[p];
416  av_memcpy_backptr(dst + 2, 2, bytes - 2);
417  dst += frame->linesize[p];
418  for (y = 1; y < height; y++) {
419  memcpy(dst, frame->data[p], 2*bytes);
420  dst += frame->linesize[p];
421  }
422  } else {
423  for (y = 0; y < height; y++) {
424  memset(dst, c[p], bytes);
425  dst += frame->linesize[p];
426  }
427  }
428  }
429 }
430 
432  unsigned int fourcc)
433 {
434  while (tags->pix_fmt >= 0) {
435  if (tags->fourcc == fourcc)
436  return tags->pix_fmt;
437  tags++;
438  }
439  return AV_PIX_FMT_NONE;
440 }
441 
444 }
445 
446 const char *avcodec_get_name(enum AVCodecID id)
447 {
448  const AVCodecDescriptor *cd;
449  const AVCodec *codec;
450 
451  if (id == AV_CODEC_ID_NONE)
452  return "none";
453  cd = avcodec_descriptor_get(id);
454  if (cd)
455  return cd->name;
456  av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
457  codec = avcodec_find_decoder(id);
458  if (codec)
459  return codec->name;
460  codec = avcodec_find_encoder(id);
461  if (codec)
462  return codec->name;
463  return "unknown_codec";
464 }
465 
466 const char *av_get_profile_name(const AVCodec *codec, int profile)
467 {
468  const AVProfile *p;
469  if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
470  return NULL;
471 
472  for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
473  if (p->profile == profile)
474  return p->name;
475 
476  return NULL;
477 }
478 
480 {
482  const AVProfile *p;
483 
484  if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
485  return NULL;
486 
487  for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
488  if (p->profile == profile)
489  return p->name;
490 
491  return NULL;
492 }
493 
495 {
496  switch (codec_id) {
512  return 4;
520  case AV_CODEC_ID_PCM_S8:
522  case AV_CODEC_ID_PCM_SGA:
523  case AV_CODEC_ID_PCM_U8:
526  return 8;
533  return 16;
540  return 24;
550  return 32;
555  return 64;
556  default:
557  return 0;
558  }
559 }
560 
562 {
563  static const enum AVCodecID map[][2] = {
575  };
576  if (fmt < 0 || fmt >= FF_ARRAY_ELEMS(map))
577  return AV_CODEC_ID_NONE;
578  if (be < 0 || be > 1)
579  be = AV_NE(1, 0);
580  return map[fmt][be];
581 }
582 
584 {
585  switch (codec_id) {
587  return 2;
589  return 3;
595  return 4;
596  default:
598  }
599 }
600 
601 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
602  uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
603  uint8_t * extradata, int frame_size, int frame_bytes)
604 {
606  int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
607 
608  /* codecs with an exact constant bits per sample */
609  if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
610  return (frame_bytes * 8LL) / (bps * ch);
611  bps = bits_per_coded_sample;
612 
613  /* codecs with a fixed packet duration */
614  switch (id) {
615  case AV_CODEC_ID_ADPCM_ADX: return 32;
616  case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
617  case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
618  case AV_CODEC_ID_AMR_NB:
619  case AV_CODEC_ID_EVRC:
620  case AV_CODEC_ID_GSM:
621  case AV_CODEC_ID_QCELP:
622  case AV_CODEC_ID_RA_288: return 160;
623  case AV_CODEC_ID_AMR_WB:
624  case AV_CODEC_ID_GSM_MS: return 320;
625  case AV_CODEC_ID_MP1: return 384;
626  case AV_CODEC_ID_ATRAC1: return 512;
627  case AV_CODEC_ID_ATRAC9:
628  case AV_CODEC_ID_ATRAC3:
629  if (framecount > INT_MAX/1024)
630  return 0;
631  return 1024 * framecount;
632  case AV_CODEC_ID_ATRAC3P: return 2048;
633  case AV_CODEC_ID_MP2:
634  case AV_CODEC_ID_MUSEPACK7: return 1152;
635  case AV_CODEC_ID_AC3: return 1536;
636  }
637 
638  if (sr > 0) {
639  /* calc from sample rate */
640  if (id == AV_CODEC_ID_TTA)
641  return 256 * sr / 245;
642  else if (id == AV_CODEC_ID_DST)
643  return 588 * sr / 44100;
644  else if (id == AV_CODEC_ID_BINKAUDIO_DCT) {
645  if (sr / 22050 > 22)
646  return 0;
647  return (480 << (sr / 22050));
648  }
649 
650  if (id == AV_CODEC_ID_MP3)
651  return sr <= 24000 ? 576 : 1152;
652  }
653 
654  if (ba > 0) {
655  /* calc from block_align */
656  if (id == AV_CODEC_ID_SIPR) {
657  switch (ba) {
658  case 20: return 160;
659  case 19: return 144;
660  case 29: return 288;
661  case 37: return 480;
662  }
663  } else if (id == AV_CODEC_ID_ILBC) {
664  switch (ba) {
665  case 38: return 160;
666  case 50: return 240;
667  }
668  }
669  }
670 
671  if (frame_bytes > 0) {
672  /* calc from frame_bytes only */
673  if (id == AV_CODEC_ID_TRUESPEECH)
674  return 240 * (frame_bytes / 32);
675  if (id == AV_CODEC_ID_NELLYMOSER)
676  return 256 * (frame_bytes / 64);
677  if (id == AV_CODEC_ID_RA_144)
678  return 160 * (frame_bytes / 20);
679 
680  if (bps > 0) {
681  /* calc from frame_bytes and bits_per_coded_sample */
683  return frame_bytes * 8 / bps;
684  }
685 
686  if (ch > 0 && ch < INT_MAX/16) {
687  /* calc from frame_bytes and channels */
688  switch (id) {
690  return frame_bytes / (40 * ch) * 256;
692  return (frame_bytes - 4 * ch) / (128 * ch) * 256;
694  return frame_bytes / (9 * ch) * 16;
697  frame_bytes /= 16 * ch;
698  if (frame_bytes > INT_MAX / 28)
699  return 0;
700  return frame_bytes * 28;
704  return (frame_bytes - 4 * ch) * 2 / ch;
706  return (frame_bytes - 4) * 2 / ch;
708  return (frame_bytes - 8) * 2;
711  if (extradata)
712  return frame_bytes * 14 / (8 * ch);
713  break;
715  return (frame_bytes / 128) * 224 / ch;
717  return (frame_bytes - 6 - ch) / ch;
719  return (frame_bytes - 8) / ch;
721  return (frame_bytes - 2 * ch) / ch;
722  case AV_CODEC_ID_MACE3:
723  return 3 * frame_bytes / ch;
724  case AV_CODEC_ID_MACE6:
725  return 6 * frame_bytes / ch;
726  case AV_CODEC_ID_PCM_LXF:
727  return 2 * (frame_bytes / (5 * ch));
728  case AV_CODEC_ID_IAC:
729  case AV_CODEC_ID_IMC:
730  return 4 * frame_bytes / ch;
731  }
732 
733  if (tag) {
734  /* calc from frame_bytes, channels, and codec_tag */
735  if (id == AV_CODEC_ID_SOL_DPCM) {
736  if (tag == 3)
737  return frame_bytes / ch;
738  else
739  return frame_bytes * 2 / ch;
740  }
741  }
742 
743  if (ba > 0) {
744  /* calc from frame_bytes, channels, and block_align */
745  int blocks = frame_bytes / ba;
746  int64_t tmp;
747  switch (id) {
749  if (bps < 2 || bps > 5)
750  return 0;
751  tmp = blocks * (1LL + (ba - 4 * ch) / (bps * ch) * 8);
752  if (tmp != (int)tmp)
753  return 0;
754  return tmp;
756  return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
758  return blocks * (1 + (ba - 4 * ch) * 2 / ch);
760  return blocks * ((ba - 4 * ch) * 2 / ch);
762  return blocks * (2 + (ba - 7 * ch) * 2LL / ch);
764  return blocks * (ba - 16) * 2 / ch;
765  }
766  }
767 
768  if (bps > 0) {
769  /* calc from frame_bytes, channels, and bits_per_coded_sample */
770  switch (id) {
771  case AV_CODEC_ID_PCM_DVD:
772  if(bps<4 || frame_bytes<3)
773  return 0;
774  return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
776  if(bps<4 || frame_bytes<4)
777  return 0;
778  return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
779  case AV_CODEC_ID_S302M:
780  return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
781  }
782  }
783  }
784  }
785 
786  /* Fall back on using frame_size */
787  if (frame_size > 1 && frame_bytes)
788  return frame_size;
789 
790  //For WMA we currently have no other means to calculate duration thus we
791  //do it here by assuming CBR, which is true for all known cases.
792  if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
793  if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
794  return (frame_bytes * 8LL * sr) / bitrate;
795  }
796 
797  return 0;
798 }
799 
800 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
801 {
802  return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
803  avctx->channels, avctx->block_align,
804  avctx->codec_tag, avctx->bits_per_coded_sample,
805  avctx->bit_rate, avctx->extradata, avctx->frame_size,
806  frame_bytes);
807 }
808 
810 {
812  par->channels, par->block_align,
813  par->codec_tag, par->bits_per_coded_sample,
814  par->bit_rate, par->extradata, par->frame_size,
815  frame_bytes);
816 }
817 
818 #if !HAVE_THREADS
820 {
821  return -1;
822 }
823 
824 #endif
825 
826 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
827 {
828  unsigned int n = 0;
829 
830  while (v >= 0xff) {
831  *s++ = 0xff;
832  v -= 0xff;
833  n++;
834  }
835  *s = v;
836  n++;
837  return n;
838 }
839 
840 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
841 {
842  int i;
843  for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
844  return i;
845 }
846 
848 {
849  int i;
850  if (!codec->hw_configs || index < 0)
851  return NULL;
852  for (i = 0; i <= index; i++)
853  if (!codec->hw_configs[i])
854  return NULL;
855  return &codec->hw_configs[index]->public;
856 }
857 
858 unsigned int avpriv_toupper4(unsigned int x)
859 {
860  return av_toupper(x & 0xFF) +
861  (av_toupper((x >> 8) & 0xFF) << 8) +
862  (av_toupper((x >> 16) & 0xFF) << 16) +
863 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
864 }
865 
867 {
868  int ret;
869 
870  dst->owner[0] = src->owner[0];
871  dst->owner[1] = src->owner[1];
872 
873  ret = av_frame_ref(dst->f, src->f);
874  if (ret < 0)
875  return ret;
876 
877  av_assert0(!dst->progress);
878 
879  if (src->progress &&
880  !(dst->progress = av_buffer_ref(src->progress))) {
881  ff_thread_release_buffer(dst->owner[0], dst);
882  return AVERROR(ENOMEM);
883  }
884 
885  return 0;
886 }
887 
888 #if !HAVE_THREADS
889 
891 {
892  return ff_get_format(avctx, fmt);
893 }
894 
896 {
897  f->owner[0] = f->owner[1] = avctx;
898  return ff_get_buffer(avctx, f->f, flags);
899 }
900 
902 {
903  if (f->f)
904  av_frame_unref(f->f);
905 }
906 
908 {
909 }
910 
911 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
912 {
913 }
914 
915 void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
916 {
917 }
918 
920 {
921  return 1;
922 }
923 
924 int ff_alloc_entries(AVCodecContext *avctx, int count)
925 {
926  return 0;
927 }
928 
930 {
931 }
932 
933 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
934 {
935 }
936 
937 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
938 {
939 }
940 
941 #endif
942 
943 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
944  const uint8_t *end,
945  uint32_t *av_restrict state)
946 {
947  int i;
948 
949  av_assert0(p <= end);
950  if (p >= end)
951  return end;
952 
953  for (i = 0; i < 3; i++) {
954  uint32_t tmp = *state << 8;
955  *state = tmp + *(p++);
956  if (tmp == 0x100 || p == end)
957  return p;
958  }
959 
960  while (p < end) {
961  if (p[-1] > 1 ) p += 3;
962  else if (p[-2] ) p += 2;
963  else if (p[-3]|(p[-1]-1)) p++;
964  else {
965  p++;
966  break;
967  }
968  }
969 
970  p = FFMIN(p, end) - 4;
971  *state = AV_RB32(p);
972 
973  return p + 4;
974 }
975 
977 {
978  AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
979  if (!props)
980  return NULL;
981 
982  if (size)
983  *size = sizeof(*props);
984 
985  props->vbv_delay = UINT64_MAX;
986 
987  return props;
988 }
989 
991 {
993  AVCPBProperties *props;
994  size_t size;
995  int i;
996 
997  for (i = 0; i < avctx->nb_coded_side_data; i++)
999  return (AVCPBProperties *)avctx->coded_side_data[i].data;
1000 
1001  props = av_cpb_properties_alloc(&size);
1002  if (!props)
1003  return NULL;
1004 
1005  tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
1006  if (!tmp) {
1007  av_freep(&props);
1008  return NULL;
1009  }
1010 
1011  avctx->coded_side_data = tmp;
1012  avctx->nb_coded_side_data++;
1013 
1015  avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
1016  avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
1017 
1018  return props;
1019 }
1020 
1021 static unsigned bcd2uint(uint8_t bcd)
1022 {
1023  unsigned low = bcd & 0xf;
1024  unsigned high = bcd >> 4;
1025  if (low > 9 || high > 9)
1026  return 0;
1027  return low + 10*high;
1028 }
1029 
1030 int ff_alloc_timecode_sei(const AVFrame *frame, AVRational rate, size_t prefix_len,
1031  void **data, size_t *sei_size)
1032 {
1033  AVFrameSideData *sd = NULL;
1034  uint8_t *sei_data;
1035  PutBitContext pb;
1036  uint32_t *tc;
1037  int m;
1038 
1039  if (frame)
1041 
1042  if (!sd) {
1043  *data = NULL;
1044  return 0;
1045  }
1046  tc = (uint32_t*)sd->data;
1047  m = tc[0] & 3;
1048 
1049  *sei_size = sizeof(uint32_t) * 4;
1050  *data = av_mallocz(*sei_size + prefix_len);
1051  if (!*data)
1052  return AVERROR(ENOMEM);
1053  sei_data = (uint8_t*)*data + prefix_len;
1054 
1055  init_put_bits(&pb, sei_data, *sei_size);
1056  put_bits(&pb, 2, m); // num_clock_ts
1057 
1058  for (int j = 1; j <= m; j++) {
1059  uint32_t tcsmpte = tc[j];
1060  unsigned hh = bcd2uint(tcsmpte & 0x3f); // 6-bit hours
1061  unsigned mm = bcd2uint(tcsmpte>>8 & 0x7f); // 7-bit minutes
1062  unsigned ss = bcd2uint(tcsmpte>>16 & 0x7f); // 7-bit seconds
1063  unsigned ff = bcd2uint(tcsmpte>>24 & 0x3f); // 6-bit frames
1064  unsigned drop = tcsmpte & 1<<30 && !0; // 1-bit drop if not arbitrary bit
1065 
1066  /* Calculate frame number of HEVC by SMPTE ST 12-1:2014 Sec 12.2 if rate > 30FPS */
1067  if (av_cmp_q(rate, (AVRational) {30, 1}) == 1) {
1068  unsigned pc;
1069  ff *= 2;
1070  if (av_cmp_q(rate, (AVRational) {50, 1}) == 0)
1071  pc = !!(tcsmpte & 1 << 7);
1072  else
1073  pc = !!(tcsmpte & 1 << 23);
1074  ff = (ff + pc) & 0x7f;
1075  }
1076 
1077  put_bits(&pb, 1, 1); // clock_timestamp_flag
1078  put_bits(&pb, 1, 1); // units_field_based_flag
1079  put_bits(&pb, 5, 0); // counting_type
1080  put_bits(&pb, 1, 1); // full_timestamp_flag
1081  put_bits(&pb, 1, 0); // discontinuity_flag
1082  put_bits(&pb, 1, drop);
1083  put_bits(&pb, 9, ff);
1084  put_bits(&pb, 6, ss);
1085  put_bits(&pb, 6, mm);
1086  put_bits(&pb, 5, hh);
1087  put_bits(&pb, 5, 0);
1088  }
1089  flush_put_bits(&pb);
1090 
1091  return 0;
1092 }
1093 
1095 {
1096  AVRational framerate = avctx->framerate;
1097  int bits_per_coded_sample = avctx->bits_per_coded_sample;
1098  int64_t bitrate;
1099 
1100  if (!(framerate.num && framerate.den))
1101  framerate = av_inv_q(avctx->time_base);
1102  if (!(framerate.num && framerate.den))
1103  return 0;
1104 
1105  if (!bits_per_coded_sample) {
1107  bits_per_coded_sample = av_get_bits_per_pixel(desc);
1108  }
1109  bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
1110  framerate.num / framerate.den;
1111 
1112  return bitrate;
1113 }
1114 
1115 int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
1116  const int * array_valid_values, int default_value)
1117 {
1118  int i = 0, ref_val;
1119 
1120  while (1) {
1121  ref_val = array_valid_values[i];
1122  if (ref_val == INT_MAX)
1123  break;
1124  if (val == ref_val)
1125  return val;
1126  i++;
1127  }
1128  /* val is not a valid value */
1130  "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
1131  return default_value;
1132 }
AV_CODEC_ID_PCM_S16LE
@ AV_CODEC_ID_PCM_S16LE
Definition: codec_id.h:312
hwconfig.h
AVCodecContext::frame_size
int frame_size
Number of samples per channel in an audio frame.
Definition: avcodec.h:1118
AV_CODEC_ID_MACE6
@ AV_CODEC_ID_MACE6
Definition: codec_id.h:430
be
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
AVCodec
AVCodec.
Definition: codec.h:197
AV_SAMPLE_FMT_FLTP
@ AV_SAMPLE_FMT_FLTP
float, planar
Definition: samplefmt.h:69
AV_PIX_FMT_YUV420P9LE
@ AV_PIX_FMT_YUV420P9LE
planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:147
AV_CODEC_ID_VP6F
@ AV_CODEC_ID_VP6F
Definition: codec_id.h:141
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:187
AV_CODEC_ID_PCM_F32BE
@ AV_CODEC_ID_PCM_F32BE
Definition: codec_id.h:332
AV_CODEC_ID_DSD_LSBF
@ AV_CODEC_ID_DSD_LSBF
Definition: codec_id.h:493
AVCodecParameters::extradata
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: codec_par.h:74
AV_CODEC_ID_ADPCM_MS
@ AV_CODEC_ID_ADPCM_MS
Definition: codec_id.h:357
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
AV_CODEC_ID_ADPCM_IMA_QT
@ AV_CODEC_ID_ADPCM_IMA_QT
Definition: codec_id.h:351
AV_CODEC_ID_AC3
@ AV_CODEC_ID_AC3
Definition: codec_id.h:423
AVERROR
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
av_xiphlacing
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
Encode extradata length to a buffer.
Definition: utils.c:826
AV_CODEC_ID_PCM_BLURAY
@ AV_CODEC_ID_PCM_BLURAY
Definition: codec_id.h:336
mem_internal.h
ff_get_format
int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
Select the (possibly hardware accelerated) pixel format.
Definition: decode.c:1072
ff_thread_get_buffer
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
Definition: utils.c:895
AV_CODEC_ID_ADPCM_DTK
@ AV_CODEC_ID_ADPCM_DTK
Definition: codec_id.h:384
AVCodecContext::sample_rate
int sample_rate
samples per second
Definition: avcodec.h:1098
PixelFormatTag
Definition: raw.h:34
av_frame_get_side_data
AVFrameSideData * av_frame_get_side_data(const AVFrame *frame, enum AVFrameSideDataType type)
Definition: frame.c:616
av_frame_new_side_data
AVFrameSideData * av_frame_new_side_data(AVFrame *frame, enum AVFrameSideDataType type, size_t size)
Add a new side data to a frame.
Definition: frame.c:604
AVCodecParameters
This struct describes the properties of an encoded stream.
Definition: codec_par.h:52
AV_PIX_FMT_GBRP16BE
@ AV_PIX_FMT_GBRP16BE
planar GBR 4:4:4 48bpp, big-endian
Definition: pixfmt.h:164
ff_thread_report_progress2
void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
Definition: utils.c:937
AV_PIX_FMT_GBRP10BE
@ AV_PIX_FMT_GBRP10BE
planar GBR 4:4:4 30bpp, big-endian
Definition: pixfmt.h:162
AVProfile::name
const char * name
short name for the profile
Definition: codec.h:185
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2541
AV_CODEC_ID_8SVX_EXP
@ AV_CODEC_ID_8SVX_EXP
Definition: codec_id.h:474
AV_PIX_FMT_YUV422P14LE
@ AV_PIX_FMT_YUV422P14LE
planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:239
ff_thread_await_progress2
void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
Definition: utils.c:933
avpriv_toupper4
unsigned int avpriv_toupper4(unsigned int x)
Definition: utils.c:858
AVCodecDescriptor::name
const char * name
Name of the codec described by this descriptor.
Definition: codec_desc.h:46
AVCodecContext::coded_side_data
AVPacketSideData * coded_side_data
Additional data associated with the entire coded stream.
Definition: avcodec.h:1938
ff_thread_can_start_frame
int ff_thread_can_start_frame(AVCodecContext *avctx)
Definition: utils.c:919
av_samples_fill_arrays
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
init_put_bits
static void init_put_bits(PutBitContext *s, uint8_t *buffer, int buffer_size)
Initialize the PutBitContext s.
Definition: put_bits.h:61
AV_FRAME_DATA_S12M_TIMECODE
@ AV_FRAME_DATA_S12M_TIMECODE
Timecode which conforms to SMPTE ST 12-1.
Definition: frame.h:151
state
static struct @321 state
AV_CODEC_ID_PCM_S32LE_PLANAR
@ AV_CODEC_ID_PCM_S32LE_PLANAR
Definition: codec_id.h:341
profile
mfxU16 profile
Definition: qsvenc.c:45
avcodec_find_encoder
const AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
Definition: allcodecs.c:904
AV_CODEC_ID_FASTAUDIO
@ AV_CODEC_ID_FASTAUDIO
Definition: codec_id.h:514
AV_CODEC_ID_RA_144
@ AV_CODEC_ID_RA_144
Definition: codec_id.h:407
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:303
put_bits
static void put_bits(Jpeg2000EncoderContext *s, int val, int n)
put n times val bit
Definition: j2kenc.c:218
tmp
static uint8_t tmp[11]
Definition: aes_ctr.c:27
AV_PIX_FMT_YUVA444P10BE
@ AV_PIX_FMT_YUVA444P10BE
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:178
pixdesc.h
index
fg index
Definition: ffmpeg_filter.c:168
AV_PIX_FMT_YUV440P12BE
@ AV_PIX_FMT_YUV440P12BE
planar YUV 4:4:0,24bpp, (1 Cr & Cb sample per 1x2 Y samples), big-endian
Definition: pixfmt.h:268
AVPacketSideData
Definition: packet.h:306
internal.h
ff_fast_malloc
static int ff_fast_malloc(void *ptr, unsigned int *size, size_t min_size, int zero_realloc)
Definition: mem_internal.h:139
AV_CODEC_ID_PCM_S16BE_PLANAR
@ AV_CODEC_ID_PCM_S16BE_PLANAR
Definition: codec_id.h:342
AV_CODEC_ID_VP6
@ AV_CODEC_ID_VP6
Definition: codec_id.h:140
b
#define b
Definition: input.c:41
AV_SAMPLE_FMT_S32P
@ AV_SAMPLE_FMT_S32P
signed 32 bits, planar
Definition: samplefmt.h:68
data
const char data[16]
Definition: mxf.c:142
AV_CODEC_ID_PCM_U24LE
@ AV_CODEC_ID_PCM_U24LE
Definition: codec_id.h:326
AV_PIX_FMT_YUV420P14BE
@ AV_PIX_FMT_YUV420P14BE
planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:234
avcodec_align_dimensions
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:328
AV_CODEC_ID_AMR_NB
@ AV_CODEC_ID_AMR_NB
Definition: codec_id.h:403
AV_PIX_FMT_YUV420P16LE
@ AV_PIX_FMT_YUV420P16LE
planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:121
AV_CODEC_ID_ADPCM_AICA
@ AV_CODEC_ID_ADPCM_AICA
Definition: codec_id.h:389
AV_CODEC_ID_ADPCM_IMA_OKI
@ AV_CODEC_ID_ADPCM_IMA_OKI
Definition: codec_id.h:383
AV_CODEC_ID_PCM_SGA
@ AV_CODEC_ID_PCM_SGA
Definition: codec_id.h:348
version.h
AV_CODEC_ID_SOL_DPCM
@ AV_CODEC_ID_SOL_DPCM
Definition: codec_id.h:414
av_mallocz_array
void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.c:196
float.h
AV_CODEC_ID_WMAV2
@ AV_CODEC_ID_WMAV2
Definition: codec_id.h:428
AV_CODEC_ID_ADPCM_G722
@ AV_CODEC_ID_ADPCM_G722
Definition: codec_id.h:379
AV_PIX_FMT_GBRP14BE
@ AV_PIX_FMT_GBRP14BE
planar GBR 4:4:4 42bpp, big-endian
Definition: pixfmt.h:246
avcodec_profile_name
const char * avcodec_profile_name(enum AVCodecID codec_id, int profile)
Return a name for the specified profile, if available.
Definition: utils.c:479
AV_PIX_FMT_BGR24
@ AV_PIX_FMT_BGR24
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:69
av_get_bits_per_pixel
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:2493
AVCodecParameters::codec_tag
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
Definition: codec_par.h:64
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
AV_CODEC_ID_IMC
@ AV_CODEC_ID_IMC
Definition: codec_id.h:447
AV_PIX_FMT_YUVA444P9BE
@ AV_PIX_FMT_YUVA444P9BE
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), big-endian
Definition: pixfmt.h:172
AV_PIX_FMT_YUV422P9BE
@ AV_PIX_FMT_YUV422P9BE
planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:156
thread.h
ThreadFrame::f
AVFrame * f
Definition: thread.h:35
AV_CODEC_ID_PCM_S16LE_PLANAR
@ AV_CODEC_ID_PCM_S16LE_PLANAR
Definition: codec_id.h:330
AV_CODEC_ID_ADPCM_THP_LE
@ AV_CODEC_ID_ADPCM_THP_LE
Definition: codec_id.h:387
AV_CODEC_ID_AMR_WB
@ AV_CODEC_ID_AMR_WB
Definition: codec_id.h:404
AV_PIX_FMT_YUV444P16LE
@ AV_PIX_FMT_YUV444P16LE
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:125
AV_CODEC_ID_PCM_S64LE
@ AV_CODEC_ID_PCM_S64LE
Definition: codec_id.h:343
AVProfile
AVProfile.
Definition: codec.h:183
AV_PIX_FMT_GBRAP12LE
@ AV_PIX_FMT_GBRAP12LE
planar GBR 4:4:4:4 48bpp, little-endian
Definition: pixfmt.h:278
AV_CODEC_ID_DSD_MSBF_PLANAR
@ AV_CODEC_ID_DSD_MSBF_PLANAR
Definition: codec_id.h:496
AV_CODEC_ID_ADPCM_CT
@ AV_CODEC_ID_ADPCM_CT
Definition: codec_id.h:363
AVCodecContext::framerate
AVRational framerate
Definition: avcodec.h:1816
AV_PIX_FMT_GRAY16BE
@ AV_PIX_FMT_GRAY16BE
Y , 16bpp, big-endian.
Definition: pixfmt.h:97
framerate
int framerate
Definition: h264_levels.c:65
avcodec_enum_to_chroma_pos
int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
Converts AVChromaLocation to swscale x/y chroma position.
Definition: utils.c:343
AVPacketSideData::size
size_t size
Definition: packet.h:308
AVCodecParameters::channels
int channels
Audio only.
Definition: codec_par.h:166
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:205
AV_CODEC_ID_IFF_ILBM
@ AV_CODEC_ID_IFF_ILBM
Definition: codec_id.h:185
AV_PIX_FMT_YUV420P12LE
@ AV_PIX_FMT_YUV420P12LE
planar YUV 4:2:0,18bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:233
AV_CODEC_ID_PCM_S16BE
@ AV_CODEC_ID_PCM_S16BE
Definition: codec_id.h:313
AV_FRAME_DATA_MATRIXENCODING
@ AV_FRAME_DATA_MATRIXENCODING
The data is the AVMatrixEncoding enum defined in libavutil/channel_layout.h.
Definition: frame.h:67
STRIDE_ALIGN
#define STRIDE_ALIGN
Definition: internal.h:113
AV_CODEC_ID_XAN_DPCM
@ AV_CODEC_ID_XAN_DPCM
Definition: codec_id.h:413
AV_CODEC_ID_MSZH
@ AV_CODEC_ID_MSZH
Definition: codec_id.h:102
AVCodec::encode_sub
int(* encode_sub)(struct AVCodecContext *, uint8_t *buf, int buf_size, const struct AVSubtitle *sub)
Definition: codec.h:279
avpriv_find_start_code
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:943
tab
static const struct twinvq_data tab
Definition: twinvq_data.h:10345
ThreadFrame::owner
AVCodecContext * owner[2]
Definition: thread.h:36
val
static double val(void *priv, double ch)
Definition: aeval.c:76
AV_SAMPLE_FMT_S64P
@ AV_SAMPLE_FMT_S64P
signed 64 bits, planar
Definition: samplefmt.h:72
ff_thread_get_format
enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
Wrapper around get_format() for frame-multithreaded codecs.
Definition: utils.c:890
AV_CODEC_ID_SMC
@ AV_CODEC_ID_SMC
Definition: codec_id.h:98
AV_CODEC_ID_MP3
@ AV_CODEC_ID_MP3
preferred ID for decoding MPEG audio layer 1, 2 or 3
Definition: codec_id.h:421
ss
#define ss(width, name, subs,...)
Definition: cbs_vp9.c:261
AV_PIX_FMT_YUVA444P16BE
@ AV_PIX_FMT_YUVA444P16BE
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:184
AV_CODEC_ID_8SVX_FIB
@ AV_CODEC_ID_8SVX_FIB
Definition: codec_id.h:475
codec.h
AVRational::num
int num
Numerator.
Definition: rational.h:59
AV_PIX_FMT_YUV444P10BE
@ AV_PIX_FMT_YUV444P10BE
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:154
av_image_check_size2
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:286
AV_PIX_FMT_YUV420P10LE
@ AV_PIX_FMT_YUV420P10LE
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:149
AV_CODEC_ID_ATRAC3
@ AV_CODEC_ID_ATRAC3
Definition: codec_id.h:451
PixelFormatTag::pix_fmt
enum AVPixelFormat pix_fmt
Definition: raw.h:35
FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM
#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:61
raw.h
AV_PIX_FMT_YUV444P12LE
@ AV_PIX_FMT_YUV444P12LE
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:241
AV_PIX_FMT_YUVJ411P
@ AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:248
AV_CODEC_ID_SIPR
@ AV_CODEC_ID_SIPR
Definition: codec_id.h:461
AV_CODEC_ID_ADPCM_SBPRO_2
@ AV_CODEC_ID_ADPCM_SBPRO_2
Definition: codec_id.h:368
AV_PIX_FMT_YUV422P12BE
@ AV_PIX_FMT_YUV422P12BE
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:236
AV_PIX_FMT_YUV444P14LE
@ AV_PIX_FMT_YUV444P14LE
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:243
AV_CODEC_ID_WMAV1
@ AV_CODEC_ID_WMAV1
Definition: codec_id.h:427
AV_CODEC_ID_PCM_S8
@ AV_CODEC_ID_PCM_S8
Definition: codec_id.h:316
AV_PIX_FMT_BGR8
@ AV_PIX_FMT_BGR8
packed RGB 3:3:2, 8bpp, (msb)2B 3G 3R(lsb)
Definition: pixfmt.h:83
avassert.h
AV_CODEC_ID_MACE3
@ AV_CODEC_ID_MACE3
Definition: codec_id.h:429
AV_CODEC_ID_ATRAC3P
@ AV_CODEC_ID_ATRAC3P
Definition: codec_id.h:459
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition: sinewin_tablegen.c:29
AV_CODEC_ID_TTA
@ AV_CODEC_ID_TTA
Definition: codec_id.h:442
avpriv_find_pix_fmt
enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags, unsigned int fourcc)
Definition: utils.c:431
AVCodecParameters::frame_size
int frame_size
Audio only.
Definition: codec_par.h:181
av_memcpy_backptr
void av_memcpy_backptr(uint8_t *dst, int back, int cnt)
Overlapping memcpy() implementation.
Definition: mem.c:434
AV_CODEC_ID_S302M
@ AV_CODEC_ID_S302M
Definition: codec_id.h:338
AV_PIX_FMT_YUVJ422P
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
AV_PIX_FMT_GBRAP16BE
@ AV_PIX_FMT_GBRAP16BE
planar GBRA 4:4:4:4 64bpp, big-endian
Definition: pixfmt.h:206
AV_CODEC_ID_ADPCM_G726
@ AV_CODEC_ID_ADPCM_G726
Definition: codec_id.h:362
FFMAX3
#define FFMAX3(a, b, c)
Definition: common.h:104
AVCodecDescriptor
This struct describes the properties of a single codec described by an AVCodecID.
Definition: codec_desc.h:38
intreadwrite.h
s
#define s(width, name)
Definition: cbs_vp9.c:257
AV_PIX_FMT_GBRP16LE
@ AV_PIX_FMT_GBRP16LE
planar GBR 4:4:4 48bpp, little-endian
Definition: pixfmt.h:165
AV_CODEC_ID_PCM_LXF
@ AV_CODEC_ID_PCM_LXF
Definition: codec_id.h:337
AV_PIX_FMT_YUVA420P
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
height
static int height
Definition: utils.c:158
av_realloc_array
void * av_realloc_array(void *ptr, size_t nmemb, size_t size)
Definition: mem.c:204
AV_CODEC_ID_ADPCM_AFC
@ AV_CODEC_ID_ADPCM_AFC
Definition: codec_id.h:382
AV_CODEC_ID_ADPCM_IMA_EA_SEAD
@ AV_CODEC_ID_ADPCM_IMA_EA_SEAD
Definition: codec_id.h:374
frame_size
int frame_size
Definition: mxfenc.c:2206
AV_CODEC_ID_MP2
@ AV_CODEC_ID_MP2
Definition: codec_id.h:420
AV_CODEC_ID_ADPCM_IMA_DK3
@ AV_CODEC_ID_ADPCM_IMA_DK3
Definition: codec_id.h:353
AV_PIX_FMT_GBRP12LE
@ AV_PIX_FMT_GBRP12LE
planar GBR 4:4:4 36bpp, little-endian
Definition: pixfmt.h:245
FF_PROFILE_UNKNOWN
#define FF_PROFILE_UNKNOWN
Definition: avcodec.h:1632
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
av_sample_fmt_is_planar
int av_sample_fmt_is_planar(enum AVSampleFormat sample_fmt)
Check if the sample format is planar.
Definition: samplefmt.c:112
AV_CODEC_ID_ADPCM_IMA_APC
@ AV_CODEC_ID_ADPCM_IMA_APC
Definition: codec_id.h:380
AV_CODEC_ID_ATRAC9
@ AV_CODEC_ID_ATRAC9
Definition: codec_id.h:508
AV_PIX_FMT_YUVA420P16BE
@ AV_PIX_FMT_YUVA420P16BE
planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
Definition: pixfmt.h:180
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:202
ff_side_data_update_matrix_encoding
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:114
AVPacketSideData::data
uint8_t * data
Definition: packet.h:307
AV_CODEC_ID_ADPCM_IMA_ISS
@ AV_CODEC_ID_ADPCM_IMA_ISS
Definition: codec_id.h:378
AV_CODEC_ID_BINKAUDIO_DCT
@ AV_CODEC_ID_BINKAUDIO_DCT
Definition: codec_id.h:468
ctx
AVFormatContext * ctx
Definition: movenc.c:48
avcodec_fill_audio_frame
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:366
ff_alloc_entries
int ff_alloc_entries(AVCodecContext *avctx, int count)
Definition: utils.c:924
AV_CODEC_ID_PCM_F24LE
@ AV_CODEC_ID_PCM_F24LE
Definition: codec_id.h:346
limits.h
avcodec_align_dimensions2
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:134
AV_CODEC_ID_DERF_DPCM
@ AV_CODEC_ID_DERF_DPCM
Definition: codec_id.h:417
AV_CODEC_ID_PCM_MULAW
@ AV_CODEC_ID_PCM_MULAW
Definition: codec_id.h:318
field
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
Definition: writing_filters.txt:78
AV_CODEC_ID_PCM_U16BE
@ AV_CODEC_ID_PCM_U16BE
Definition: codec_id.h:315
AV_CODEC_ID_ADPCM_IMA_SMJPEG
@ AV_CODEC_ID_ADPCM_IMA_SMJPEG
Definition: codec_id.h:356
AV_PIX_FMT_GBRP10LE
@ AV_PIX_FMT_GBRP10LE
planar GBR 4:4:4 30bpp, little-endian
Definition: pixfmt.h:163
codec_id
enum AVCodecID codec_id
Definition: vaapi_decode.c:369
AV_CODEC_ID_PCM_DVD
@ AV_CODEC_ID_PCM_DVD
Definition: codec_id.h:331
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
AVCPBProperties
This structure describes the bitrate properties of an encoded bitstream.
Definition: avcodec.h:430
f
#define f(width, name)
Definition: cbs_vp9.c:255
AV_CODEC_ID_H264
@ AV_CODEC_ID_H264
Definition: codec_id.h:76
PutBitContext
Definition: put_bits.h:49
AV_PIX_FMT_YUVJ444P
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
AVCodecContext::codec_id
enum AVCodecID codec_id
Definition: avcodec.h:511
AV_PIX_FMT_YUV444P10LE
@ AV_PIX_FMT_YUV444P10LE
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:155
AV_PIX_FMT_YUVA422P10LE
@ AV_PIX_FMT_YUVA422P10LE
planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
Definition: pixfmt.h:177
ThreadFrame::progress
AVBufferRef * progress
Definition: thread.h:39
ff_thread_ref_frame
int ff_thread_ref_frame(ThreadFrame *dst, const ThreadFrame *src)
Definition: utils.c:866
AVMatrixEncoding
AVMatrixEncoding
Definition: channel_layout.h:120
AV_PIX_FMT_YUV444P9BE
@ AV_PIX_FMT_YUV444P9BE
planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:152
AV_CODEC_ID_PCM_ALAW
@ AV_CODEC_ID_PCM_ALAW
Definition: codec_id.h:319
AV_PIX_FMT_YUV422P10BE
@ AV_PIX_FMT_YUV422P10BE
planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:150
AV_PIX_FMT_YUV422P16LE
@ AV_PIX_FMT_YUV422P16LE
planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:123
AV_CODEC_ID_ADPCM_EA_XAS
@ AV_CODEC_ID_ADPCM_EA_XAS
Definition: codec_id.h:376
ff_match_2uint16
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:840
AV_CODEC_ID_SP5X
@ AV_CODEC_ID_SP5X
Definition: codec_id.h:59
AV_PIX_FMT_GBRAP12BE
@ AV_PIX_FMT_GBRAP12BE
planar GBR 4:4:4:4 48bpp, big-endian
Definition: pixfmt.h:277
NULL
#define NULL
Definition: coverity.c:32
ff_thread_release_buffer
void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
Wrapper around release_buffer() frame-for multithreaded codecs.
Definition: utils.c:901
AV_CODEC_ID_DST
@ AV_CODEC_ID_DST
Definition: codec_id.h:501
AV_CODEC_ID_INTERPLAY_VIDEO
@ AV_CODEC_ID_INTERPLAY_VIDEO
Definition: codec_id.h:88
AV_CODEC_ID_ADPCM_YAMAHA
@ AV_CODEC_ID_ADPCM_YAMAHA
Definition: codec_id.h:365
AV_CODEC_ID_ADPCM_IMA_WS
@ AV_CODEC_ID_ADPCM_IMA_WS
Definition: codec_id.h:355
AV_CODEC_ID_PCM_U24BE
@ AV_CODEC_ID_PCM_U24BE
Definition: codec_id.h:327
AV_PIX_FMT_YUYV422
@ AV_PIX_FMT_YUYV422
packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
Definition: pixfmt.h:67
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
AV_CODEC_ID_INTERPLAY_DPCM
@ AV_CODEC_ID_INTERPLAY_DPCM
Definition: codec_id.h:412
AV_CODEC_ID_PCM_U32BE
@ AV_CODEC_ID_PCM_U32BE
Definition: codec_id.h:323
AVCodecContext::nb_coded_side_data
int nb_coded_side_data
Definition: avcodec.h:1939
AV_CODEC_ID_ADPCM_ARGO
@ AV_CODEC_ID_ADPCM_ARGO
Definition: codec_id.h:393
AV_PIX_FMT_YUVJ420P
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
AV_CODEC_ID_ADPCM_IMA_DK4
@ AV_CODEC_ID_ADPCM_IMA_DK4
Definition: codec_id.h:354
AVCodecContext::bit_rate
int64_t bit_rate
the average bitrate
Definition: avcodec.h:551
AVPacketSideData::type
enum AVPacketSideDataType type
Definition: packet.h:309
AV_PIX_FMT_YUVA422P12LE
@ AV_PIX_FMT_YUVA422P12LE
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), 12b alpha, little-endian
Definition: pixfmt.h:334
AV_CODEC_ID_CINEPAK
@ AV_CODEC_ID_CINEPAK
Definition: codec_id.h:92
src
#define src
Definition: vp8dsp.c:255
AV_CODEC_ID_PCM_S64BE
@ AV_CODEC_ID_PCM_S64BE
Definition: codec_id.h:344
AV_CODEC_ID_ZLIB
@ AV_CODEC_ID_ZLIB
Definition: codec_id.h:103
AV_PIX_FMT_YUVA444P12BE
@ AV_PIX_FMT_YUVA444P12BE
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), 12b alpha, big-endian
Definition: pixfmt.h:335
AVCodec::profiles
const AVProfile * profiles
array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN}
Definition: codec.h:224
AV_PIX_FMT_YUVA444P9LE
@ AV_PIX_FMT_YUVA444P9LE
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), little-endian
Definition: pixfmt.h:173
AV_CODEC_ID_ADPCM_IMA_AMV
@ AV_CODEC_ID_ADPCM_IMA_AMV
Definition: codec_id.h:370
AV_PIX_FMT_YUVA420P16LE
@ AV_PIX_FMT_YUVA420P16LE
planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition: pixfmt.h:181
AV_PIX_FMT_RGB8
@ AV_PIX_FMT_RGB8
packed RGB 3:3:2, 8bpp, (msb)2R 3G 3B(lsb)
Definition: pixfmt.h:86
AV_CODEC_ID_ROQ_DPCM
@ AV_CODEC_ID_ROQ_DPCM
Definition: codec_id.h:411
AV_PIX_FMT_YUV440P10LE
@ AV_PIX_FMT_YUV440P10LE
planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
Definition: pixfmt.h:265
AVProfile::profile
int profile
Definition: codec.h:184
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
AV_PIX_FMT_YUVA420P9LE
@ AV_PIX_FMT_YUVA420P9LE
planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), little-endian
Definition: pixfmt.h:169
AV_CODEC_ID_VP6A
@ AV_CODEC_ID_VP6A
Definition: codec_id.h:155
av_cpb_properties_alloc
AVCPBProperties * av_cpb_properties_alloc(size_t *size)
Allocate a CPB properties structure and initialize its fields to default values.
Definition: utils.c:976
ff_color_frame
void ff_color_frame(AVFrame *frame, const int c[4])
Definition: utils.c:402
c
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
AVCodecParameters::sample_rate
int sample_rate
Audio only.
Definition: codec_par.h:170
AV_PIX_FMT_YUV420P14LE
@ AV_PIX_FMT_YUV420P14LE
planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:235
AV_CODEC_ID_PCM_S24LE_PLANAR
@ AV_CODEC_ID_PCM_S24LE_PLANAR
Definition: codec_id.h:340
AV_CODEC_ID_ADPCM_XA
@ AV_CODEC_ID_ADPCM_XA
Definition: codec_id.h:359
AV_CODEC_ID_GSM
@ AV_CODEC_ID_GSM
as in Berlin toast format
Definition: codec_id.h:438
AVCodecID
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: codec_id.h:46
AV_CODEC_ID_PCM_VIDC
@ AV_CODEC_ID_PCM_VIDC
Definition: codec_id.h:347
AV_PIX_FMT_YUV444P14BE
@ AV_PIX_FMT_YUV444P14BE
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:242
avcodec_find_decoder
const AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
Definition: allcodecs.c:909
AV_CODEC_ID_MJPEGB
@ AV_CODEC_ID_MJPEGB
Definition: codec_id.h:57
AV_PIX_FMT_YUV420P9BE
@ AV_PIX_FMT_YUV420P9BE
The following 12 formats have the disadvantage of needing 1 format for each bit depth.
Definition: pixfmt.h:146
AVCodecContext::time_base
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented.
Definition: avcodec.h:624
av_codec_is_decoder
int av_codec_is_decoder(const AVCodec *codec)
Definition: utils.c:79
AV_CODEC_ID_QCELP
@ AV_CODEC_ID_QCELP
Definition: codec_id.h:444
av_get_bits_per_sample
int av_get_bits_per_sample(enum AVCodecID codec_id)
Return codec bits per sample.
Definition: utils.c:583
AV_CODEC_ID_PCM_S24LE
@ AV_CODEC_ID_PCM_S24LE
Definition: codec_id.h:324
ff_get_buffer
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
Definition: decode.c:1640
AV_PIX_FMT_RGB24
@ AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
AV_PIX_FMT_YUV440P12LE
@ AV_PIX_FMT_YUV440P12LE
planar YUV 4:4:0,24bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
Definition: pixfmt.h:267
AV_CODEC_ID_ADPCM_ADX
@ AV_CODEC_ID_ADPCM_ADX
Definition: codec_id.h:360
av_frame_ref
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:326
AV_SAMPLE_FMT_U8P
@ AV_SAMPLE_FMT_U8P
unsigned 8 bits, planar
Definition: samplefmt.h:66
AV_CODEC_ID_ADPCM_IMA_RAD
@ AV_CODEC_ID_ADPCM_IMA_RAD
Definition: codec_id.h:385
AV_PIX_FMT_YUV420P12BE
@ AV_PIX_FMT_YUV420P12BE
planar YUV 4:2:0,18bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:232
AV_PIX_FMT_YUV422P10LE
@ AV_PIX_FMT_YUV422P10LE
planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:151
AV_CODEC_ID_DSD_MSBF
@ AV_CODEC_ID_DSD_MSBF
Definition: codec_id.h:494
AV_CODEC_ID_ADPCM_IMA_ALP
@ AV_CODEC_ID_ADPCM_IMA_ALP
Definition: codec_id.h:397
av_get_profile_name
const char * av_get_profile_name(const AVCodec *codec, int profile)
Return a name for the specified profile, if available.
Definition: utils.c:466
FFMAX
#define FFMAX(a, b)
Definition: common.h:103
AV_PIX_FMT_YUV422P14BE
@ AV_PIX_FMT_YUV422P14BE
planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:238
bps
unsigned bps
Definition: movenc.c:1595
AV_CODEC_ID_ADPCM_SWF
@ AV_CODEC_ID_ADPCM_SWF
Definition: codec_id.h:364
size
int size
Definition: twinvq_data.h:10344
AV_CODEC_ID_SMVJPEG
@ AV_CODEC_ID_SMVJPEG
Definition: codec_id.h:262
avpriv_codec_get_cap_skip_frame_fill_param
int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec)
Definition: utils.c:442
AVCodec::encode2
int(* encode2)(struct AVCodecContext *avctx, struct AVPacket *avpkt, const struct AVFrame *frame, int *got_packet_ptr)
Encode data to an AVPacket.
Definition: codec.h:291
AV_NUM_DATA_POINTERS
#define AV_NUM_DATA_POINTERS
Definition: frame.h:304
AV_RB32
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:96
AVCodec::receive_packet
int(* receive_packet)(struct AVCodecContext *avctx, struct AVPacket *avpkt)
Encode API with decoupled frame/packet dataflow.
Definition: codec.h:313
AV_PIX_FMT_GBRP9BE
@ AV_PIX_FMT_GBRP9BE
planar GBR 4:4:4 27bpp, big-endian
Definition: pixfmt.h:160
ff_add_cpb_side_data
AVCPBProperties * ff_add_cpb_side_data(AVCodecContext *avctx)
Add a CPB properties side data to an encoding context.
Definition: utils.c:990
AVFrameSideData::data
uint8_t * data
Definition: frame.h:211
AVCHROMA_LOC_UNSPECIFIED
@ AVCHROMA_LOC_UNSPECIFIED
Definition: pixfmt.h:596
AV_PIX_FMT_YUV420P10BE
@ AV_PIX_FMT_YUV420P10BE
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:148
AV_PIX_FMT_GBRP9LE
@ AV_PIX_FMT_GBRP9LE
planar GBR 4:4:4 27bpp, little-endian
Definition: pixfmt.h:161
AV_NE
#define AV_NE(be, le)
Definition: common.h:50
AVCodec::receive_frame
int(* receive_frame)(struct AVCodecContext *avctx, struct AVFrame *frame)
Decode API with decoupled packet/frame dataflow.
Definition: codec.h:320
FFMIN
#define FFMIN(a, b)
Definition: common.h:105
a
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:41
AV_PIX_FMT_YUVA444P
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:167
ff_reset_entries
void ff_reset_entries(AVCodecContext *avctx)
Definition: utils.c:929
bitrate
int64_t bitrate
Definition: h264_levels.c:131
ff_int_from_list_or_default
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:1115
AV_PIX_FMT_YUVA420P10LE
@ AV_PIX_FMT_YUVA420P10LE
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition: pixfmt.h:175
AV_CODEC_ID_SVQ1
@ AV_CODEC_ID_SVQ1
Definition: codec_id.h:71
AV_SAMPLE_FMT_S16P
@ AV_SAMPLE_FMT_S16P
signed 16 bits, planar
Definition: samplefmt.h:67
ff_thread_await_progress
void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
Wait for earlier decoding threads to finish reference pictures.
Definition: utils.c:915
AVCodecContext::channels
int channels
number of audio channels
Definition: avcodec.h:1099
AVChromaLocation
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:595
AV_PIX_FMT_YUVA422P10BE
@ AV_PIX_FMT_YUVA422P10BE
planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
Definition: pixfmt.h:176
av_codec_is_encoder
int av_codec_is_encoder(const AVCodec *codec)
Definition: utils.c:74
AV_CODEC_ID_VP5
@ AV_CODEC_ID_VP5
Definition: codec_id.h:139
AVCPBProperties::vbv_delay
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:460
avcodec_get_name
const char * avcodec_get_name(enum AVCodecID id)
Get the name of a codec.
Definition: utils.c:446
AV_CODEC_ID_MJPEG
@ AV_CODEC_ID_MJPEG
Definition: codec_id.h:56
AVCodecContext::bits_per_coded_sample
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
Definition: avcodec.h:1524
AV_PIX_FMT_YUVA444P12LE
@ AV_PIX_FMT_YUVA444P12LE
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), 12b alpha, little-endian
Definition: pixfmt.h:336
AVCodec::hw_configs
const struct AVCodecHWConfigInternal *const * hw_configs
Array of pointers to hardware configurations supported by the codec, or NULL if no hardware supported...
Definition: codec.h:345
AV_PIX_FMT_YUVA422P9BE
@ AV_PIX_FMT_YUVA422P9BE
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), big-endian
Definition: pixfmt.h:170
AV_CODEC_ID_ATRAC1
@ AV_CODEC_ID_ATRAC1
Definition: codec_id.h:466
AV_CODEC_ID_RA_288
@ AV_CODEC_ID_RA_288
Definition: codec_id.h:408
ff_thread_finish_setup
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:907
AV_CODEC_ID_ADPCM_MTAF
@ AV_CODEC_ID_ADPCM_MTAF
Definition: codec_id.h:391
i
int i
Definition: input.c:407
AV_CODEC_ID_NONE
@ AV_CODEC_ID_NONE
Definition: codec_id.h:47
width
static int width
Definition: utils.c:158
AVCodecContext::extradata
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:602
AV_SAMPLE_FMT_U8
@ AV_SAMPLE_FMT_U8
unsigned 8 bits
Definition: samplefmt.h:60
AV_CODEC_ID_EVRC
@ AV_CODEC_ID_EVRC
Definition: codec_id.h:491
AVCodecParameters::block_align
int block_align
Audio only.
Definition: codec_par.h:177
AV_CODEC_ID_DSD_LSBF_PLANAR
@ AV_CODEC_ID_DSD_LSBF_PLANAR
Definition: codec_id.h:495
AVSampleFormat
AVSampleFormat
Audio sample formats.
Definition: samplefmt.h:58
AV_CODEC_ID_PCM_F64BE
@ AV_CODEC_ID_PCM_F64BE
Definition: codec_id.h:334
av_fast_padded_malloc
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:50
AV_PIX_FMT_RGB555
#define AV_PIX_FMT_RGB555
Definition: pixfmt.h:377
av_toupper
static av_const int av_toupper(int c)
Locale-independent conversion of ASCII characters to uppercase.
Definition: avstring.h:236
AV_CODEC_ID_ADPCM_IMA_APM
@ AV_CODEC_ID_ADPCM_IMA_APM
Definition: codec_id.h:396
AV_PIX_FMT_YUVJ440P
@ AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
Definition: pixfmt.h:100
AV_CODEC_ID_PCM_S32BE
@ AV_CODEC_ID_PCM_S32BE
Definition: codec_id.h:321
av_frame_unref
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:436
av_get_audio_frame_duration
int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
Return audio frame duration.
Definition: utils.c:800
AV_SAMPLE_FMT_S16
@ AV_SAMPLE_FMT_S16
signed 16 bits
Definition: samplefmt.h:61
av_mallocz
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:243
AVCodec::name
const char * name
Name of the codec implementation.
Definition: codec.h:204
av_inv_q
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
Definition: rational.h:159
AV_PKT_DATA_CPB_PROPERTIES
@ AV_PKT_DATA_CPB_PROPERTIES
This side data corresponds to the AVCPBProperties struct.
Definition: packet.h:145
AV_CODEC_ID_PCM_F16LE
@ AV_CODEC_ID_PCM_F16LE
Definition: codec_id.h:345
AV_CODEC_ID_ADPCM_IMA_DAT4
@ AV_CODEC_ID_ADPCM_IMA_DAT4
Definition: codec_id.h:390
av_samples_get_buffer_size
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
AV_PIX_FMT_YUV444P16BE
@ AV_PIX_FMT_YUV444P16BE
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:126
AVCodecContext::height
int height
Definition: avcodec.h:674
AVCodecContext::pix_fmt
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:711
ff_guess_coded_bitrate
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:1094
av_get_exact_bits_per_sample
int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
Return codec bits per sample.
Definition: utils.c:494
avcodec.h
AV_CODEC_ID_IAC
@ AV_CODEC_ID_IAC
Definition: codec_id.h:478
av_cmp_q
static int av_cmp_q(AVRational a, AVRational b)
Compare two rationals.
Definition: rational.h:89
AV_PIX_FMT_GBRAP16LE
@ AV_PIX_FMT_GBRAP16LE
planar GBRA 4:4:4:4 64bpp, little-endian
Definition: pixfmt.h:207
AV_PIX_FMT_PAL8
@ AV_PIX_FMT_PAL8
8 bits with AV_PIX_FMT_RGB32 palette
Definition: pixfmt.h:77
AV_CODEC_ID_GSM_MS
@ AV_CODEC_ID_GSM_MS
Definition: codec_id.h:450
AV_PIX_FMT_YVYU422
@ AV_PIX_FMT_YVYU422
packed YUV 4:2:2, 16bpp, Y0 Cr Y1 Cb
Definition: pixfmt.h:200
tag
uint32_t tag
Definition: movenc.c:1594
ret
ret
Definition: filter_design.txt:187
AVCodec::caps_internal
int caps_internal
Internal codec capabilities.
Definition: codec.h:330
AVCodecContext::block_align
int block_align
number of bytes per packet if constant and known or 0 Used by some WAV based audio codecs.
Definition: avcodec.h:1135
pixfmt.h
get_audio_frame_duration
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:601
frame
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
Definition: filter_design.txt:264
pos
unsigned int pos
Definition: spdifenc.c:412
AV_CODEC_ID_JV
@ AV_CODEC_ID_JV
Definition: codec_id.h:198
AV_INPUT_BUFFER_PADDING_SIZE
#define AV_INPUT_BUFFER_PADDING_SIZE
Definition: avcodec.h:192
AV_PIX_FMT_GBRP12BE
@ AV_PIX_FMT_GBRP12BE
planar GBR 4:4:4 36bpp, big-endian
Definition: pixfmt.h:244
AV_PIX_FMT_UYVY422
@ AV_PIX_FMT_UYVY422
packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
Definition: pixfmt.h:81
AV_PIX_FMT_YUV444P12BE
@ AV_PIX_FMT_YUV444P12BE
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:240
AV_CODEC_ID_AMV
@ AV_CODEC_ID_AMV
Definition: codec_id.h:156
AVCodecContext
main external API structure.
Definition: avcodec.h:501
ThreadFrame
Definition: thread.h:34
AV_CODEC_ID_ADPCM_G726LE
@ AV_CODEC_ID_ADPCM_G726LE
Definition: codec_id.h:386
av_get_pcm_codec
enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
Return the PCM codec associated with a sample format.
Definition: utils.c:561
AVRational::den
int den
Denominator.
Definition: rational.h:60
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_CODEC_ID_JPEGLS
@ AV_CODEC_ID_JPEGLS
Definition: codec_id.h:60
AV_PIX_FMT_YUV444P9LE
@ AV_PIX_FMT_YUV444P9LE
planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:153
av_fast_padded_mallocz
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:62
AV_SAMPLE_FMT_DBLP
@ AV_SAMPLE_FMT_DBLP
double, planar
Definition: samplefmt.h:70
AV_CODEC_ID_PCM_U32LE
@ AV_CODEC_ID_PCM_U32LE
Definition: codec_id.h:322
AV_PIX_FMT_FLAG_PLANAR
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
Definition: pixdesc.h:133
av_get_audio_frame_duration2
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:809
avcodec_chroma_pos_to_enum
enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
Converts swscale x/y chroma position to AVChromaLocation.
Definition: utils.c:355
av_buffer_ref
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
AV_PIX_FMT_YUVA420P10BE
@ AV_PIX_FMT_YUVA420P10BE
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
Definition: pixfmt.h:174
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
avcodec_get_hw_config
const AVCodecHWConfig * avcodec_get_hw_config(const AVCodec *codec, int index)
Retrieve supported hardware configurations for a codec.
Definition: utils.c:847
AV_PIX_FMT_YUV420P16BE
@ AV_PIX_FMT_YUV420P16BE
planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:122
AV_CODEC_ID_TRUESPEECH
@ AV_CODEC_ID_TRUESPEECH
Definition: codec_id.h:441
shift
static int shift(int a, int b)
Definition: sonic.c:82
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:158
AV_CODEC_ID_ADPCM_THP
@ AV_CODEC_ID_ADPCM_THP
Definition: codec_id.h:369
AV_PIX_FMT_YUV422P16BE
@ AV_PIX_FMT_YUV422P16BE
planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:124
tc
#define tc
Definition: regdef.h:69
desc
const char * desc
Definition: libsvtav1.c:79
AV_CODEC_ID_PCM_S32LE
@ AV_CODEC_ID_PCM_S32LE
Definition: codec_id.h:320
AV_PIX_FMT_GRAY16LE
@ AV_PIX_FMT_GRAY16LE
Y , 16bpp, little-endian.
Definition: pixfmt.h:98
AVCodecParameters::bits_per_coded_sample
int bits_per_coded_sample
The number of bits per sample in the codedwords.
Definition: codec_par.h:102
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
bcd2uint
static unsigned bcd2uint(uint8_t bcd)
Definition: utils.c:1021
AV_CODEC_ID_ADPCM_SBPRO_4
@ AV_CODEC_ID_ADPCM_SBPRO_4
Definition: codec_id.h:366
AV_CODEC_ID_PCM_U8
@ AV_CODEC_ID_PCM_U8
Definition: codec_id.h:317
AV_CODEC_ID_RPZA
@ AV_CODEC_ID_RPZA
Definition: codec_id.h:91
AV_CODEC_ID_SDX2_DPCM
@ AV_CODEC_ID_SDX2_DPCM
Definition: codec_id.h:415
ff_set_dimensions
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:84
ff_set_sar
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:99
AV_PIX_FMT_YUVA444P10LE
@ AV_PIX_FMT_YUVA444P10LE
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition: pixfmt.h:179
AVFrameSideData
Structure to hold side data for an AVFrame.
Definition: frame.h:209
flush_put_bits
static void flush_put_bits(PutBitContext *s)
Pad the end of the output stream with zeros.
Definition: put_bits.h:142
AV_CODEC_ID_PCM_S24DAUD
@ AV_CODEC_ID_PCM_S24DAUD
Definition: codec_id.h:328
AV_CODEC_ID_ADPCM_IMA_SSI
@ AV_CODEC_ID_ADPCM_IMA_SSI
Definition: codec_id.h:394
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:70
map
const VDPAUPixFmtMap * map
Definition: hwcontext_vdpau.c:71
AV_CODEC_ID_PCM_F64LE
@ AV_CODEC_ID_PCM_F64LE
Definition: codec_id.h:335
ff_alloc_timecode_sei
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:1030
AVCodecContext::codec_tag
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
Definition: avcodec.h:526
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:48
AV_CODEC_ID_ADPCM_IMA_MOFLEX
@ AV_CODEC_ID_ADPCM_IMA_MOFLEX
Definition: codec_id.h:400
AVCodecParameters::codec_id
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: codec_par.h:60
AV_CODEC_ID_ADPCM_IMA_WAV
@ AV_CODEC_ID_ADPCM_IMA_WAV
Definition: codec_id.h:352
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
AV_PIX_FMT_YUV440P10BE
@ AV_PIX_FMT_YUV440P10BE
planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), big-endian
Definition: pixfmt.h:266
AV_PIX_FMT_YUVA422P16BE
@ AV_PIX_FMT_YUVA422P16BE
planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
Definition: pixfmt.h:182
AV_PIX_FMT_YUV422P9LE
@ AV_PIX_FMT_YUV422P9LE
planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:157
AV_PIX_FMT_YUVA422P16LE
@ AV_PIX_FMT_YUVA422P16LE
planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
Definition: pixfmt.h:183
PixelFormatTag::fourcc
unsigned int fourcc
Definition: raw.h:36
AV_CODEC_ID_ILBC
@ AV_CODEC_ID_ILBC
Definition: codec_id.h:479
AV_PIX_FMT_GBRP14LE
@ AV_PIX_FMT_GBRP14LE
planar GBR 4:4:4 42bpp, little-endian
Definition: pixfmt.h:247
AV_CODEC_ID_PCM_S8_PLANAR
@ AV_CODEC_ID_PCM_S8_PLANAR
Definition: codec_id.h:339
AVCodecContext::width
int width
picture width / height.
Definition: avcodec.h:674
AV_CODEC_ID_PCM_U16LE
@ AV_CODEC_ID_PCM_U16LE
Definition: codec_id.h:314
imgutils.h
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
AVCHROMA_LOC_NB
@ AVCHROMA_LOC_NB
Not part of ABI.
Definition: pixfmt.h:603
AV_PIX_FMT_YUV410P
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
AV_CODEC_ID_PCM_F32LE
@ AV_CODEC_ID_PCM_F32LE
Definition: codec_id.h:333
AVCodecParameters::bit_rate
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
Definition: codec_par.h:89
AVCodec::decode
int(* decode)(struct AVCodecContext *avctx, void *outdata, int *got_frame_ptr, struct AVPacket *avpkt)
Decode picture or subtitle data.
Definition: codec.h:305
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
AVCodecHWConfig
Definition: codec.h:445
AV_CODEC_ID_ADPCM_4XM
@ AV_CODEC_ID_ADPCM_4XM
Definition: codec_id.h:358
AV_SAMPLE_FMT_DBL
@ AV_SAMPLE_FMT_DBL
double
Definition: samplefmt.h:64
avcodec_descriptor_get
const AVCodecDescriptor * avcodec_descriptor_get(enum AVCodecID id)
Definition: codec_desc.c:3501
av_image_check_sar
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:320
avstring.h
AV_PIX_FMT_YUVA444P16LE
@ AV_PIX_FMT_YUVA444P16LE
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition: pixfmt.h:185
AV_CODEC_ID_MUSEPACK7
@ AV_CODEC_ID_MUSEPACK7
Definition: codec_id.h:448
AV_CODEC_ID_ADPCM_PSX
@ AV_CODEC_ID_ADPCM_PSX
Definition: codec_id.h:388
planar
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
AV_PIX_FMT_YUVA422P12BE
@ AV_PIX_FMT_YUVA422P12BE
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), 12b alpha, big-endian
Definition: pixfmt.h:333
AVCodecHWConfigInternal::public
AVCodecHWConfig public
This is the structure which will be returned to the user by avcodec_get_hw_config().
Definition: hwconfig.h:34
put_bits.h
ff_thread_report_progress
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:911
AV_SAMPLE_FMT_S32
@ AV_SAMPLE_FMT_S32
signed 32 bits
Definition: samplefmt.h:62
fourcc
uint32_t fourcc
Definition: vaapi_decode.c:239
AV_CODEC_ID_LJPEG
@ AV_CODEC_ID_LJPEG
Definition: codec_id.h:58
AV_CODEC_ID_MP1
@ AV_CODEC_ID_MP1
Definition: codec_id.h:462
AV_PIX_FMT_YUV422P12LE
@ AV_PIX_FMT_YUV422P12LE
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:237
AV_CODEC_ID_PCM_S24BE
@ AV_CODEC_ID_PCM_S24BE
Definition: codec_id.h:325
ff_thread_init
int ff_thread_init(AVCodecContext *s)
Definition: utils.c:819
AV_PIX_FMT_YUVA420P9BE
@ AV_PIX_FMT_YUVA420P9BE
planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), big-endian
Definition: pixfmt.h:168
AV_SAMPLE_FMT_FLT
@ AV_SAMPLE_FMT_FLT
float
Definition: samplefmt.h:63
AVCodecContext::sample_aspect_ratio
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:859
AV_PIX_FMT_YUVA422P
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:166
AV_CODEC_ID_NELLYMOSER
@ AV_CODEC_ID_NELLYMOSER
Definition: codec_id.h:453
AV_PIX_FMT_UYYVYY411
@ AV_PIX_FMT_UYYVYY411
packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3
Definition: pixfmt.h:82
AV_CODEC_ID_ADPCM_SBPRO_3
@ AV_CODEC_ID_ADPCM_SBPRO_3
Definition: codec_id.h:367
nb_channels
int nb_channels
Definition: channel_layout.c:81
AV_PIX_FMT_YUVA422P9LE
@ AV_PIX_FMT_YUVA422P9LE
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), little-endian
Definition: pixfmt.h:171