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"
31 #include "libavutil/intreadwrite.h"
32 #include "libavutil/mem.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 "codec_internal.h"
39 #include "decode.h"
40 #include "hwconfig.h"
41 #include "thread.h"
42 #include "threadframe.h"
43 #include "internal.h"
44 #include "put_bits.h"
45 #include "startcode.h"
46 #include <stdlib.h>
47 #include <limits.h>
48 
49 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
50 {
51  uint8_t **p = ptr;
52  if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
53  av_freep(p);
54  *size = 0;
55  return;
56  }
58  if (*p)
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  }
71  if (*p)
72  memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
73 }
74 
75 int av_codec_is_encoder(const AVCodec *avcodec)
76 {
77  const FFCodec *const codec = ffcodec(avcodec);
78  return codec && (codec->cb_type == FF_CODEC_CB_TYPE_ENCODE ||
81 }
82 
83 int av_codec_is_decoder(const AVCodec *avcodec)
84 {
85  const FFCodec *const codec = ffcodec(avcodec);
86  return codec && (codec->cb_type == FF_CODEC_CB_TYPE_DECODE ||
89 }
90 
92 {
93  int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
94 
95  if (ret < 0)
96  width = height = 0;
97 
98  s->coded_width = width;
99  s->coded_height = height;
100  s->width = AV_CEIL_RSHIFT(width, s->lowres);
101  s->height = AV_CEIL_RSHIFT(height, s->lowres);
102 
103  return ret;
104 }
105 
107 {
108  int ret = av_image_check_sar(avctx->width, avctx->height, sar);
109 
110  if (ret < 0) {
111  av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
112  sar.num, sar.den);
113  avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
114  return ret;
115  } else {
116  avctx->sample_aspect_ratio = sar;
117  }
118  return 0;
119 }
120 
122  enum AVMatrixEncoding matrix_encoding)
123 {
124  AVFrameSideData *side_data;
125  enum AVMatrixEncoding *data;
126 
128  if (!side_data)
130  sizeof(enum AVMatrixEncoding));
131 
132  if (!side_data)
133  return AVERROR(ENOMEM);
134 
135  data = (enum AVMatrixEncoding*)side_data->data;
136  *data = matrix_encoding;
137 
138  return 0;
139 }
140 
142  int linesize_align[AV_NUM_DATA_POINTERS])
143 {
144  int i;
145  int w_align = 1;
146  int h_align = 1;
147  AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
148 
149  if (desc) {
150  w_align = 1 << desc->log2_chroma_w;
151  h_align = 1 << desc->log2_chroma_h;
152  }
153 
154  switch (s->pix_fmt) {
155  case AV_PIX_FMT_YUV420P:
156  case AV_PIX_FMT_YUYV422:
157  case AV_PIX_FMT_YVYU422:
158  case AV_PIX_FMT_UYVY422:
159  case AV_PIX_FMT_YUV422P:
160  case AV_PIX_FMT_YUV440P:
161  case AV_PIX_FMT_YUV444P:
162  case AV_PIX_FMT_GBRP:
163  case AV_PIX_FMT_GBRAP:
164  case AV_PIX_FMT_GRAY8:
165  case AV_PIX_FMT_GRAY16BE:
166  case AV_PIX_FMT_GRAY16LE:
167  case AV_PIX_FMT_YUVJ420P:
168  case AV_PIX_FMT_YUVJ422P:
169  case AV_PIX_FMT_YUVJ440P:
170  case AV_PIX_FMT_YUVJ444P:
171  case AV_PIX_FMT_YUVA420P:
172  case AV_PIX_FMT_YUVA422P:
173  case AV_PIX_FMT_YUVA444P:
230  case AV_PIX_FMT_GBRP9LE:
231  case AV_PIX_FMT_GBRP9BE:
232  case AV_PIX_FMT_GBRP10LE:
233  case AV_PIX_FMT_GBRP10BE:
234  case AV_PIX_FMT_GBRP12LE:
235  case AV_PIX_FMT_GBRP12BE:
236  case AV_PIX_FMT_GBRP14LE:
237  case AV_PIX_FMT_GBRP14BE:
238  case AV_PIX_FMT_GBRP16LE:
239  case AV_PIX_FMT_GBRP16BE:
244  w_align = 16; //FIXME assume 16 pixel per macroblock
245  h_align = 16 * 2; // interlaced needs 2 macroblocks height
246  break;
247  case AV_PIX_FMT_YUV411P:
248  case AV_PIX_FMT_YUVJ411P:
250  w_align = 32;
251  h_align = 16 * 2;
252  break;
253  case AV_PIX_FMT_YUV410P:
254  if (s->codec_id == AV_CODEC_ID_SVQ1) {
255  w_align = 64;
256  h_align = 64;
257  }
258  break;
259  case AV_PIX_FMT_RGB555:
260  if (s->codec_id == AV_CODEC_ID_RPZA) {
261  w_align = 4;
262  h_align = 4;
263  }
264  if (s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
265  w_align = 8;
266  h_align = 8;
267  }
268  break;
269  case AV_PIX_FMT_PAL8:
270  case AV_PIX_FMT_BGR8:
271  case AV_PIX_FMT_RGB8:
272  if (s->codec_id == AV_CODEC_ID_SMC ||
273  s->codec_id == AV_CODEC_ID_CINEPAK) {
274  w_align = 4;
275  h_align = 4;
276  }
277  if (s->codec_id == AV_CODEC_ID_JV ||
278  s->codec_id == AV_CODEC_ID_ARGO ||
279  s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
280  w_align = 8;
281  h_align = 8;
282  }
283  if (s->codec_id == AV_CODEC_ID_MJPEG ||
284  s->codec_id == AV_CODEC_ID_MJPEGB ||
285  s->codec_id == AV_CODEC_ID_LJPEG ||
286  s->codec_id == AV_CODEC_ID_SMVJPEG ||
287  s->codec_id == AV_CODEC_ID_AMV ||
288  s->codec_id == AV_CODEC_ID_SP5X ||
289  s->codec_id == AV_CODEC_ID_JPEGLS) {
290  w_align = 8;
291  h_align = 2*8;
292  }
293  break;
294  case AV_PIX_FMT_BGR24:
295  if ((s->codec_id == AV_CODEC_ID_MSZH) ||
296  (s->codec_id == AV_CODEC_ID_ZLIB)) {
297  w_align = 4;
298  h_align = 4;
299  }
300  break;
301  case AV_PIX_FMT_RGB24:
302  if (s->codec_id == AV_CODEC_ID_CINEPAK) {
303  w_align = 4;
304  h_align = 4;
305  }
306  break;
307  case AV_PIX_FMT_BGR0:
308  if (s->codec_id == AV_CODEC_ID_ARGO) {
309  w_align = 8;
310  h_align = 8;
311  }
312  break;
313  default:
314  break;
315  }
316 
317  if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
318  w_align = FFMAX(w_align, 8);
319  }
320 
321  *width = FFALIGN(*width, w_align);
322  *height = FFALIGN(*height, h_align);
323  if (s->codec_id == AV_CODEC_ID_H264 || s->lowres ||
324  s->codec_id == AV_CODEC_ID_VP5 || s->codec_id == AV_CODEC_ID_VP6 ||
325  s->codec_id == AV_CODEC_ID_VP6F || s->codec_id == AV_CODEC_ID_VP6A
326  ) {
327  // some of the optimized chroma MC reads one line too much
328  // which is also done in mpeg decoders with lowres > 0
329  *height += 2;
330 
331  // H.264 uses edge emulation for out of frame motion vectors, for this
332  // it requires a temporary area large enough to hold a 21x21 block,
333  // increasing witdth ensure that the temporary area is large enough,
334  // the next rounded up width is 32
335  *width = FFMAX(*width, 32);
336  }
337 
338  for (i = 0; i < 4; i++)
339  linesize_align[i] = STRIDE_ALIGN;
340 }
341 
343 {
344  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
345  int chroma_shift = desc->log2_chroma_w;
346  int linesize_align[AV_NUM_DATA_POINTERS];
347  int align;
348 
349  avcodec_align_dimensions2(s, width, height, linesize_align);
350  align = FFMAX(linesize_align[0], linesize_align[3]);
351  linesize_align[1] <<= chroma_shift;
352  linesize_align[2] <<= chroma_shift;
353  align = FFMAX3(align, linesize_align[1], linesize_align[2]);
354  *width = FFALIGN(*width, align);
355 }
356 #if FF_API_AVCODEC_CHROMA_POS
357 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
358 {
359  return av_chroma_location_enum_to_pos(xpos, ypos, pos);
360 }
361 
363 {
364  return av_chroma_location_pos_to_enum(xpos, ypos);
365 }
366 #endif
367 
368 int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
369  enum AVSampleFormat sample_fmt, const uint8_t *buf,
370  int buf_size, int align)
371 {
372  int ch, planar, needed_size, ret = 0;
373 
374  needed_size = av_samples_get_buffer_size(NULL, nb_channels,
375  frame->nb_samples, sample_fmt,
376  align);
377  if (buf_size < needed_size)
378  return AVERROR(EINVAL);
379 
380  planar = av_sample_fmt_is_planar(sample_fmt);
381  if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
382  if (!FF_ALLOCZ_TYPED_ARRAY(frame->extended_data, nb_channels))
383  return AVERROR(ENOMEM);
384  } else {
385  frame->extended_data = frame->data;
386  }
387 
388  if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
389  (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
390  sample_fmt, align)) < 0) {
391  if (frame->extended_data != frame->data)
392  av_freep(&frame->extended_data);
393  return ret;
394  }
395  if (frame->extended_data != frame->data) {
396  for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
397  frame->data[ch] = frame->extended_data[ch];
398  }
399 
400  return ret;
401 }
402 
403 void ff_color_frame(AVFrame *frame, const int c[4])
404 {
406  int p, y;
407 
409 
410  for (p = 0; p<desc->nb_components; p++) {
411  uint8_t *dst = frame->data[p];
412  int is_chroma = p == 1 || p == 2;
413  int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
414  int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
415  if (desc->comp[0].depth >= 9) {
416  ((uint16_t*)dst)[0] = c[p];
417  av_memcpy_backptr(dst + 2, 2, bytes - 2);
418  dst += frame->linesize[p];
419  for (y = 1; y < height; y++) {
420  memcpy(dst, frame->data[p], 2*bytes);
421  dst += frame->linesize[p];
422  }
423  } else {
424  for (y = 0; y < height; y++) {
425  memset(dst, c[p], bytes);
426  dst += frame->linesize[p];
427  }
428  }
429  }
430 }
431 
434 }
435 
436 const char *avcodec_get_name(enum AVCodecID id)
437 {
438  const AVCodecDescriptor *cd;
439  const AVCodec *codec;
440 
441  if (id == AV_CODEC_ID_NONE)
442  return "none";
443  cd = avcodec_descriptor_get(id);
444  if (cd)
445  return cd->name;
446  av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
447  codec = avcodec_find_decoder(id);
448  if (codec)
449  return codec->name;
450  codec = avcodec_find_encoder(id);
451  if (codec)
452  return codec->name;
453  return "unknown_codec";
454 }
455 
456 const char *av_get_profile_name(const AVCodec *codec, int profile)
457 {
458  const AVProfile *p;
459  if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
460  return NULL;
461 
462  for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
463  if (p->profile == profile)
464  return p->name;
465 
466  return NULL;
467 }
468 
470 {
472  const AVProfile *p;
473 
474  if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
475  return NULL;
476 
477  for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
478  if (p->profile == profile)
479  return p->name;
480 
481  return NULL;
482 }
483 
485 {
486  switch (codec_id) {
487  case AV_CODEC_ID_DFPWM:
488  return 1;
504  return 4;
512  case AV_CODEC_ID_PCM_S8:
514  case AV_CODEC_ID_PCM_SGA:
515  case AV_CODEC_ID_PCM_U8:
518  return 8;
525  return 16;
532  return 24;
542  return 32;
547  return 64;
548  default:
549  return 0;
550  }
551 }
552 
554 {
555  static const enum AVCodecID map[][2] = {
567  };
568  if (fmt < 0 || fmt >= FF_ARRAY_ELEMS(map))
569  return AV_CODEC_ID_NONE;
570  if (be < 0 || be > 1)
571  be = AV_NE(1, 0);
572  return map[fmt][be];
573 }
574 
576 {
577  switch (codec_id) {
578  case AV_CODEC_ID_DFPWM:
579  return 1;
581  return 2;
583  return 3;
589  return 4;
590  default:
592  }
593 }
594 
595 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
596  uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
597  uint8_t * extradata, int frame_size, int frame_bytes)
598 {
600  int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
601 
602  /* codecs with an exact constant bits per sample */
603  if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
604  return (frame_bytes * 8LL) / (bps * ch);
605  bps = bits_per_coded_sample;
606 
607  /* codecs with a fixed packet duration */
608  switch (id) {
609  case AV_CODEC_ID_ADPCM_ADX: return 32;
610  case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
611  case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
612  case AV_CODEC_ID_AMR_NB:
613  case AV_CODEC_ID_EVRC:
614  case AV_CODEC_ID_GSM:
615  case AV_CODEC_ID_QCELP:
616  case AV_CODEC_ID_RA_288: return 160;
617  case AV_CODEC_ID_AMR_WB:
618  case AV_CODEC_ID_GSM_MS: return 320;
619  case AV_CODEC_ID_MP1: return 384;
620  case AV_CODEC_ID_ATRAC1: return 512;
621  case AV_CODEC_ID_ATRAC9:
622  case AV_CODEC_ID_ATRAC3:
623  if (framecount > INT_MAX/1024)
624  return 0;
625  return 1024 * framecount;
626  case AV_CODEC_ID_ATRAC3P: return 2048;
627  case AV_CODEC_ID_MP2:
628  case AV_CODEC_ID_MUSEPACK7: return 1152;
629  case AV_CODEC_ID_AC3: return 1536;
630  case AV_CODEC_ID_FTR: return 1024;
631  }
632 
633  if (sr > 0) {
634  /* calc from sample rate */
635  if (id == AV_CODEC_ID_TTA)
636  return 256 * sr / 245;
637  else if (id == AV_CODEC_ID_DST)
638  return 588 * sr / 44100;
639  else if (id == AV_CODEC_ID_BINKAUDIO_DCT) {
640  if (sr / 22050 > 22)
641  return 0;
642  return (480 << (sr / 22050));
643  }
644 
645  if (id == AV_CODEC_ID_MP3)
646  return sr <= 24000 ? 576 : 1152;
647  }
648 
649  if (ba > 0) {
650  /* calc from block_align */
651  if (id == AV_CODEC_ID_SIPR) {
652  switch (ba) {
653  case 20: return 160;
654  case 19: return 144;
655  case 29: return 288;
656  case 37: return 480;
657  }
658  } else if (id == AV_CODEC_ID_ILBC) {
659  switch (ba) {
660  case 38: return 160;
661  case 50: return 240;
662  }
663  }
664  }
665 
666  if (frame_bytes > 0) {
667  /* calc from frame_bytes only */
668  if (id == AV_CODEC_ID_TRUESPEECH)
669  return 240 * (frame_bytes / 32);
670  if (id == AV_CODEC_ID_NELLYMOSER)
671  return 256 * (frame_bytes / 64);
672  if (id == AV_CODEC_ID_RA_144)
673  return 160 * (frame_bytes / 20);
674  if (id == AV_CODEC_ID_APTX)
675  return 4 * (frame_bytes / 4);
676  if (id == AV_CODEC_ID_APTX_HD)
677  return 4 * (frame_bytes / 6);
678 
679  if (bps > 0) {
680  /* calc from frame_bytes and bits_per_coded_sample */
682  return frame_bytes * 8 / bps;
683  }
684 
685  if (ch > 0 && ch < INT_MAX/16) {
686  /* calc from frame_bytes and channels */
687  switch (id) {
689  return frame_bytes / (40 * ch) * 256;
691  return (frame_bytes - 4 * ch) / (128 * ch) * 256;
693  return frame_bytes / (9 * ch) * 16;
696  frame_bytes /= 16 * ch;
697  if (frame_bytes > INT_MAX / 28)
698  return 0;
699  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 * 14LL / (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 = 0;
747  switch (id) {
749  if (bps < 2 || bps > 5)
750  return 0;
751  tmp = blocks * (1LL + (ba - 4 * ch) / (bps * ch) * 8);
752  break;
754  tmp = blocks * (((ba - 16LL) * 2 / 3 * 4) / ch);
755  break;
757  tmp = blocks * (1 + (ba - 4LL * ch) * 2 / ch);
758  break;
760  tmp = blocks * ((ba - 4LL * ch) * 2 / ch);
761  break;
763  tmp = blocks * (2 + (ba - 7LL * ch) * 2LL / ch);
764  break;
766  tmp = blocks * (ba - 16LL) * 2 / ch;
767  break;
768  }
769  if (tmp) {
770  if (tmp != (int)tmp)
771  return 0;
772  return tmp;
773  }
774  }
775 
776  if (bps > 0) {
777  /* calc from frame_bytes, channels, and bits_per_coded_sample */
778  switch (id) {
779  case AV_CODEC_ID_PCM_DVD:
780  if(bps<4 || frame_bytes<3)
781  return 0;
782  return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
784  if(bps<4 || frame_bytes<4)
785  return 0;
786  return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
787  case AV_CODEC_ID_S302M:
788  return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
789  }
790  }
791  }
792  }
793 
794  /* Fall back on using frame_size */
795  if (frame_size > 1 && frame_bytes)
796  return frame_size;
797 
798  //For WMA we currently have no other means to calculate duration thus we
799  //do it here by assuming CBR, which is true for all known cases.
800  if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
801  if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
802  return (frame_bytes * 8LL * sr) / bitrate;
803  }
804 
805  return 0;
806 }
807 
808 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
809 {
810  int channels = avctx->ch_layout.nb_channels;
811  int duration;
812 #if FF_API_OLD_CHANNEL_LAYOUT
814  if (!channels)
815  channels = avctx->channels;
817 #endif
819  channels, avctx->block_align,
820  avctx->codec_tag, avctx->bits_per_coded_sample,
821  avctx->bit_rate, avctx->extradata, avctx->frame_size,
822  frame_bytes);
823  return FFMAX(0, duration);
824 }
825 
827 {
828  int channels = par->ch_layout.nb_channels;
829  int duration;
830 #if FF_API_OLD_CHANNEL_LAYOUT
832  if (!channels)
833  channels = par->channels;
835 #endif
837  channels, par->block_align,
838  par->codec_tag, par->bits_per_coded_sample,
839  par->bit_rate, par->extradata, par->frame_size,
840  frame_bytes);
841  return FFMAX(0, duration);
842 }
843 
844 #if !HAVE_THREADS
846 {
847  return -1;
848 }
849 
850 #endif
851 
852 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
853 {
854  unsigned int n = 0;
855 
856  while (v >= 0xff) {
857  *s++ = 0xff;
858  v -= 0xff;
859  n++;
860  }
861  *s = v;
862  n++;
863  return n;
864 }
865 
866 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
867 {
868  int i;
869  for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
870  return i;
871 }
872 
874 {
875  const FFCodec *const codec = ffcodec(avcodec);
876  int i;
877  if (!codec->hw_configs || index < 0)
878  return NULL;
879  for (i = 0; i <= index; i++)
880  if (!codec->hw_configs[i])
881  return NULL;
882  return &codec->hw_configs[index]->public;
883 }
884 
886 {
887  int ret;
888 
889  dst->owner[0] = src->owner[0];
890  dst->owner[1] = src->owner[1];
891 
892  ret = av_frame_ref(dst->f, src->f);
893  if (ret < 0)
894  return ret;
895 
896  av_assert0(!dst->progress);
897 
898  if (src->progress &&
899  !(dst->progress = av_buffer_ref(src->progress))) {
900  ff_thread_release_ext_buffer(dst->owner[0], dst);
901  return AVERROR(ENOMEM);
902  }
903 
904  return 0;
905 }
906 
907 #if !HAVE_THREADS
908 
910 {
911  return ff_get_format(avctx, fmt);
912 }
913 
915 {
916  return ff_get_buffer(avctx, f, flags);
917 }
918 
920 {
921  f->owner[0] = f->owner[1] = avctx;
922  return ff_get_buffer(avctx, f->f, flags);
923 }
924 
926 {
927  if (f)
928  av_frame_unref(f);
929 }
930 
932 {
933  f->owner[0] = f->owner[1] = NULL;
934  if (f->f)
935  av_frame_unref(f->f);
936 }
937 
939 {
940 }
941 
942 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
943 {
944 }
945 
946 void ff_thread_await_progress(const ThreadFrame *f, int progress, int field)
947 {
948 }
949 
951 {
952  return 1;
953 }
954 
956 {
957  return 0;
958 }
959 
961 {
962  return 0;
963 }
964 
965 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
966 {
967 }
968 
969 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
970 {
971 }
972 
973 #endif
974 
975 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
976  const uint8_t *end,
977  uint32_t *av_restrict state)
978 {
979  int i;
980 
981  av_assert0(p <= end);
982  if (p >= end)
983  return end;
984 
985  for (i = 0; i < 3; i++) {
986  uint32_t tmp = *state << 8;
987  *state = tmp + *(p++);
988  if (tmp == 0x100 || p == end)
989  return p;
990  }
991 
992  while (p < end) {
993  if (p[-1] > 1 ) p += 3;
994  else if (p[-2] ) p += 2;
995  else if (p[-3]|(p[-1]-1)) p++;
996  else {
997  p++;
998  break;
999  }
1000  }
1001 
1002  p = FFMIN(p, end) - 4;
1003  *state = AV_RB32(p);
1004 
1005  return p + 4;
1006 }
1007 
1009 {
1010  AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
1011  if (!props)
1012  return NULL;
1013 
1014  if (size)
1015  *size = sizeof(*props);
1016 
1017  props->vbv_delay = UINT64_MAX;
1018 
1019  return props;
1020 }
1021 
1023 {
1025  AVCPBProperties *props;
1026  size_t size;
1027  int i;
1028 
1029  for (i = 0; i < avctx->nb_coded_side_data; i++)
1031  return (AVCPBProperties *)avctx->coded_side_data[i].data;
1032 
1033  props = av_cpb_properties_alloc(&size);
1034  if (!props)
1035  return NULL;
1036 
1037  tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
1038  if (!tmp) {
1039  av_freep(&props);
1040  return NULL;
1041  }
1042 
1043  avctx->coded_side_data = tmp;
1044  avctx->nb_coded_side_data++;
1045 
1047  avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
1048  avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
1049 
1050  return props;
1051 }
1052 
1053 static unsigned bcd2uint(uint8_t bcd)
1054 {
1055  unsigned low = bcd & 0xf;
1056  unsigned high = bcd >> 4;
1057  if (low > 9 || high > 9)
1058  return 0;
1059  return low + 10*high;
1060 }
1061 
1062 int ff_alloc_timecode_sei(const AVFrame *frame, AVRational rate, size_t prefix_len,
1063  void **data, size_t *sei_size)
1064 {
1065  AVFrameSideData *sd = NULL;
1066  uint8_t *sei_data;
1067  PutBitContext pb;
1068  uint32_t *tc;
1069  int m;
1070 
1071  if (frame)
1073 
1074  if (!sd) {
1075  *data = NULL;
1076  return 0;
1077  }
1078  tc = (uint32_t*)sd->data;
1079  m = tc[0] & 3;
1080 
1081  *sei_size = sizeof(uint32_t) * 4;
1082  *data = av_mallocz(*sei_size + prefix_len);
1083  if (!*data)
1084  return AVERROR(ENOMEM);
1085  sei_data = (uint8_t*)*data + prefix_len;
1086 
1087  init_put_bits(&pb, sei_data, *sei_size);
1088  put_bits(&pb, 2, m); // num_clock_ts
1089 
1090  for (int j = 1; j <= m; j++) {
1091  uint32_t tcsmpte = tc[j];
1092  unsigned hh = bcd2uint(tcsmpte & 0x3f); // 6-bit hours
1093  unsigned mm = bcd2uint(tcsmpte>>8 & 0x7f); // 7-bit minutes
1094  unsigned ss = bcd2uint(tcsmpte>>16 & 0x7f); // 7-bit seconds
1095  unsigned ff = bcd2uint(tcsmpte>>24 & 0x3f); // 6-bit frames
1096  unsigned drop = tcsmpte & 1<<30 && !0; // 1-bit drop if not arbitrary bit
1097 
1098  /* Calculate frame number of HEVC by SMPTE ST 12-1:2014 Sec 12.2 if rate > 30FPS */
1099  if (av_cmp_q(rate, (AVRational) {30, 1}) == 1) {
1100  unsigned pc;
1101  ff *= 2;
1102  if (av_cmp_q(rate, (AVRational) {50, 1}) == 0)
1103  pc = !!(tcsmpte & 1 << 7);
1104  else
1105  pc = !!(tcsmpte & 1 << 23);
1106  ff = (ff + pc) & 0x7f;
1107  }
1108 
1109  put_bits(&pb, 1, 1); // clock_timestamp_flag
1110  put_bits(&pb, 1, 1); // units_field_based_flag
1111  put_bits(&pb, 5, 0); // counting_type
1112  put_bits(&pb, 1, 1); // full_timestamp_flag
1113  put_bits(&pb, 1, 0); // discontinuity_flag
1114  put_bits(&pb, 1, drop);
1115  put_bits(&pb, 9, ff);
1116  put_bits(&pb, 6, ss);
1117  put_bits(&pb, 6, mm);
1118  put_bits(&pb, 5, hh);
1119  put_bits(&pb, 5, 0);
1120  }
1121  flush_put_bits(&pb);
1122 
1123  return 0;
1124 }
1125 
1127 {
1128  AVRational framerate = avctx->framerate;
1129  int bits_per_coded_sample = avctx->bits_per_coded_sample;
1130  int64_t bitrate;
1131 
1132  if (!(framerate.num && framerate.den))
1133  framerate = av_inv_q(avctx->time_base);
1134  if (!(framerate.num && framerate.den))
1135  return 0;
1136 
1137  if (!bits_per_coded_sample) {
1139  bits_per_coded_sample = av_get_bits_per_pixel(desc);
1140  }
1141  bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
1142  framerate.num / framerate.den;
1143 
1144  return bitrate;
1145 }
1146 
1147 int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
1148  const int * array_valid_values, int default_value)
1149 {
1150  int i = 0, ref_val;
1151 
1152  while (1) {
1153  ref_val = array_valid_values[i];
1154  if (ref_val == INT_MAX)
1155  break;
1156  if (val == ref_val)
1157  return val;
1158  i++;
1159  }
1160  /* val is not a valid value */
1162  "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
1163  return default_value;
1164 }
FF_ALLOCZ_TYPED_ARRAY
#define FF_ALLOCZ_TYPED_ARRAY(p, nelem)
Definition: internal.h:97
AV_CODEC_ID_PCM_S16LE
@ AV_CODEC_ID_PCM_S16LE
Definition: codec_id.h:326
hwconfig.h
AVCodecContext::frame_size
int frame_size
Number of samples per channel in an audio frame.
Definition: avcodec.h:1035
AV_CODEC_ID_MACE6
@ AV_CODEC_ID_MACE6
Definition: codec_id.h:445
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:204
FF_ENABLE_DEPRECATION_WARNINGS
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:82
AV_SAMPLE_FMT_FLTP
@ AV_SAMPLE_FMT_FLTP
float, planar
Definition: samplefmt.h:66
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:144
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:186
AV_CODEC_ID_PCM_F32BE
@ AV_CODEC_ID_PCM_F32BE
Definition: codec_id.h:346
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:357
AV_CODEC_ID_DSD_LSBF
@ AV_CODEC_ID_DSD_LSBF
Definition: codec_id.h:508
AVCodecParameters::extradata
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: codec_par.h:76
AV_CODEC_ID_ADPCM_MS
@ AV_CODEC_ID_ADPCM_MS
Definition: codec_id.h:371
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
AV_CODEC_ID_ADPCM_IMA_QT
@ AV_CODEC_ID_ADPCM_IMA_QT
Definition: codec_id.h:365
AV_CODEC_ID_AC3
@ AV_CODEC_ID_AC3
Definition: codec_id.h:438
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_CODEC_ID_PCM_BLURAY
@ AV_CODEC_ID_PCM_BLURAY
Definition: codec_id.h:350
FF_CODEC_CB_TYPE_RECEIVE_PACKET
@ FF_CODEC_CB_TYPE_RECEIVE_PACKET
Definition: codec_internal.h:116
ff_thread_release_buffer
void ff_thread_release_buffer(AVCodecContext *avctx, AVFrame *f)
Wrapper around release_buffer() frame-for multithreaded codecs.
Definition: utils.c:925
ff_get_format
int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
Select the (possibly hardware accelerated) pixel format.
Definition: decode.c:1147
AV_CODEC_ID_ADPCM_DTK
@ AV_CODEC_ID_ADPCM_DTK
Definition: codec_id.h:398
AVCodecContext::sample_rate
int sample_rate
samples per second
Definition: avcodec.h:1007
av_frame_get_side_data
AVFrameSideData * av_frame_get_side_data(const AVFrame *frame, enum AVFrameSideDataType type)
Definition: frame.c:691
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:679
AVCodecParameters
This struct describes the properties of an encoded stream.
Definition: codec_par.h:54
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:969
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:198
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2858
AV_CODEC_ID_8SVX_EXP
@ AV_CODEC_ID_8SVX_EXP
Definition: codec_id.h:489
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:267
ff_thread_await_progress2
void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
Definition: utils.c:965
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:1858
ff_thread_can_start_frame
int ff_thread_can_start_frame(AVCodecContext *avctx)
Definition: utils.c:950
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:153
init_put_bits
static void init_put_bits(PutBitContext *s, uint8_t *buffer, int buffer_size)
Initialize the PutBitContext s.
Definition: put_bits.h:62
AV_FRAME_DATA_S12M_TIMECODE
@ AV_FRAME_DATA_S12M_TIMECODE
Timecode which conforms to SMPTE ST 12-1.
Definition: frame.h:152
AV_CODEC_ID_PCM_S32LE_PLANAR
@ AV_CODEC_ID_PCM_S32LE_PLANAR
Definition: codec_id.h:355
avcodec_find_encoder
const AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
Definition: allcodecs.c:946
AV_CODEC_ID_FASTAUDIO
@ AV_CODEC_ID_FASTAUDIO
Definition: codec_id.h:529
AV_CODEC_ID_RA_144
@ AV_CODEC_ID_RA_144
Definition: codec_id.h:422
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:325
put_bits
static void put_bits(Jpeg2000EncoderContext *s, int val, int n)
put n times val bit
Definition: j2kenc.c:221
tmp
static uint8_t tmp[11]
Definition: aes_ctr.c:28
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
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:298
AVPacketSideData
Definition: packet.h:315
internal.h
AV_CODEC_ID_PCM_S16BE_PLANAR
@ AV_CODEC_ID_PCM_S16BE_PLANAR
Definition: codec_id.h:356
AV_CODEC_ID_VP6
@ AV_CODEC_ID_VP6
Definition: codec_id.h:143
b
#define b
Definition: input.c:41
AV_SAMPLE_FMT_S32P
@ AV_SAMPLE_FMT_S32P
signed 32 bits, planar
Definition: samplefmt.h:65
data
const char data[16]
Definition: mxf.c:146
AV_CODEC_ID_PCM_U24LE
@ AV_CODEC_ID_PCM_U24LE
Definition: codec_id.h:340
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:262
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:342
AV_CODEC_ID_AMR_NB
@ AV_CODEC_ID_AMR_NB
Definition: codec_id.h:418
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:403
AV_CODEC_ID_ADPCM_IMA_OKI
@ AV_CODEC_ID_ADPCM_IMA_OKI
Definition: codec_id.h:397
AV_CODEC_ID_PCM_SGA
@ AV_CODEC_ID_PCM_SGA
Definition: codec_id.h:362
FFCodec
Definition: codec_internal.h:119
AV_CODEC_ID_SOL_DPCM
@ AV_CODEC_ID_SOL_DPCM
Definition: codec_id.h:429
AV_CODEC_ID_WMAV2
@ AV_CODEC_ID_WMAV2
Definition: codec_id.h:443
AV_CODEC_ID_ADPCM_G722
@ AV_CODEC_ID_ADPCM_G722
Definition: codec_id.h:393
AV_PIX_FMT_GBRP14BE
@ AV_PIX_FMT_GBRP14BE
planar GBR 4:4:4 42bpp, big-endian
Definition: pixfmt.h:274
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:2810
AVCodecParameters::codec_tag
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
Definition: codec_par.h:66
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
FF_CODEC_CB_TYPE_ENCODE_SUB
@ FF_CODEC_CB_TYPE_ENCODE_SUB
Definition: codec_internal.h:113
FFMAX
#define FFMAX(a, b)
Definition: macros.h:47
AV_CODEC_ID_IMC
@ AV_CODEC_ID_IMC
Definition: codec_id.h:462
av_buffer_ref
AVBufferRef * av_buffer_ref(const AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:103
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
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:469
AVChannelLayout::nb_channels
int nb_channels
Number of channels in this layout.
Definition: channel_layout.h:311
thread.h
ThreadFrame::f
AVFrame * f
Definition: threadframe.h:28
AV_CODEC_ID_PCM_S16LE_PLANAR
@ AV_CODEC_ID_PCM_S16LE_PLANAR
Definition: codec_id.h:344
AV_CODEC_ID_ADPCM_THP_LE
@ AV_CODEC_ID_ADPCM_THP_LE
Definition: codec_id.h:401
AV_CODEC_ID_AMR_WB
@ AV_CODEC_ID_AMR_WB
Definition: codec_id.h:419
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:357
AVProfile
AVProfile.
Definition: codec.h:196
AV_PIX_FMT_GBRAP12LE
@ AV_PIX_FMT_GBRAP12LE
planar GBR 4:4:4:4 48bpp, little-endian
Definition: pixfmt.h:308
AV_CODEC_ID_DSD_MSBF_PLANAR
@ AV_CODEC_ID_DSD_MSBF_PLANAR
Definition: codec_id.h:511
AV_CODEC_ID_ADPCM_CT
@ AV_CODEC_ID_ADPCM_CT
Definition: codec_id.h:377
AVCodecContext::framerate
AVRational framerate
Definition: avcodec.h:1735
AV_PIX_FMT_GRAY16BE
@ AV_PIX_FMT_GRAY16BE
Y , 16bpp, big-endian.
Definition: pixfmt.h:97
framerate
int framerate
Definition: h264_levels.c:65
AVPacketSideData::size
size_t size
Definition: packet.h:317
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:362
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:188
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:261
AV_CODEC_ID_PCM_S16BE
@ AV_CODEC_ID_PCM_S16BE
Definition: codec_id.h:327
AV_FRAME_DATA_MATRIXENCODING
@ AV_FRAME_DATA_MATRIXENCODING
The data is the AVMatrixEncoding enum defined in libavutil/channel_layout.h.
Definition: frame.h:68
STRIDE_ALIGN
#define STRIDE_ALIGN
Definition: internal.h:49
AVCodecContext::ch_layout
AVChannelLayout ch_layout
Audio channel layout.
Definition: avcodec.h:2059
AV_CODEC_ID_XAN_DPCM
@ AV_CODEC_ID_XAN_DPCM
Definition: codec_id.h:428
AV_CODEC_ID_MSZH
@ AV_CODEC_ID_MSZH
Definition: codec_id.h:105
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:975
tab
static const struct twinvq_data tab
Definition: twinvq_data.h:10345
ThreadFrame::owner
AVCodecContext * owner[2]
Definition: threadframe.h:29
val
static double val(void *priv, double ch)
Definition: aeval.c:77
AV_SAMPLE_FMT_S64P
@ AV_SAMPLE_FMT_S64P
signed 64 bits, planar
Definition: samplefmt.h:69
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:909
AV_CODEC_ID_SMC
@ AV_CODEC_ID_SMC
Definition: codec_id.h:101
AV_CODEC_ID_MP3
@ AV_CODEC_ID_MP3
preferred ID for decoding MPEG audio layer 1, 2 or 3
Definition: codec_id.h:436
ss
#define ss(width, name, subs,...)
Definition: cbs_vp9.c:260
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
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;} } 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_CODEC_ID_8SVX_FIB
@ AV_CODEC_ID_8SVX_FIB
Definition: codec_id.h:490
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:289
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:466
FF_CODEC_CB_TYPE_DECODE
@ FF_CODEC_CB_TYPE_DECODE
Definition: codec_internal.h:101
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:269
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:276
av_get_bits_per_sample
int av_get_bits_per_sample(enum AVCodecID codec_id)
Return codec bits per sample.
Definition: utils.c:575
AV_CODEC_ID_SIPR
@ AV_CODEC_ID_SIPR
Definition: codec_id.h:476
AV_CODEC_ID_ADPCM_SBPRO_2
@ AV_CODEC_ID_ADPCM_SBPRO_2
Definition: codec_id.h:382
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:264
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:271
AV_CODEC_ID_WMAV1
@ AV_CODEC_ID_WMAV1
Definition: codec_id.h:442
AV_CODEC_ID_PCM_S8
@ AV_CODEC_ID_PCM_S8
Definition: codec_id.h:330
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:444
AV_CODEC_ID_ATRAC3P
@ AV_CODEC_ID_ATRAC3P
Definition: codec_id.h:474
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:457
duration
int64_t duration
Definition: movenc.c:64
AVCodecParameters::frame_size
int frame_size
Audio only.
Definition: codec_par.h:189
av_memcpy_backptr
void av_memcpy_backptr(uint8_t *dst, int back, int cnt)
Overlapping memcpy() implementation.
Definition: mem.c:455
AV_CODEC_ID_S302M
@ AV_CODEC_ID_S302M
Definition: codec_id.h:352
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_IMA_ACORN
@ AV_CODEC_ID_ADPCM_IMA_ACORN
Definition: codec_id.h:415
AV_CODEC_ID_ADPCM_G726
@ AV_CODEC_ID_ADPCM_G726
Definition: codec_id.h:376
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:256
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:351
AV_NE
#define AV_NE(be, le)
Definition: macros.h:33
av_chroma_location_enum_to_pos
int av_chroma_location_enum_to_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
Converts AVChromaLocation to swscale x/y chroma position.
Definition: pixdesc.c:3276
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:50
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:225
AV_CODEC_ID_ADPCM_AFC
@ AV_CODEC_ID_ADPCM_AFC
Definition: codec_id.h:396
AV_CODEC_ID_ADPCM_IMA_EA_SEAD
@ AV_CODEC_ID_ADPCM_IMA_EA_SEAD
Definition: codec_id.h:388
frame_size
int frame_size
Definition: mxfenc.c:2202
AV_CODEC_ID_MP2
@ AV_CODEC_ID_MP2
Definition: codec_id.h:435
AV_CODEC_ID_ADPCM_IMA_DK3
@ AV_CODEC_ID_ADPCM_IMA_DK3
Definition: codec_id.h:367
AV_CODEC_ID_ARGO
@ AV_CODEC_ID_ARGO
Definition: codec_id.h:310
AV_PIX_FMT_GBRP12LE
@ AV_PIX_FMT_GBRP12LE
planar GBR 4:4:4 36bpp, little-endian
Definition: pixfmt.h:273
FF_PROFILE_UNKNOWN
#define FF_PROFILE_UNKNOWN
Definition: avcodec.h:1551
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:114
AV_CODEC_ID_ADPCM_IMA_APC
@ AV_CODEC_ID_ADPCM_IMA_APC
Definition: codec_id.h:394
AV_CODEC_ID_ATRAC9
@ AV_CODEC_ID_ATRAC9
Definition: codec_id.h:523
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:201
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:121
AVPacketSideData::data
uint8_t * data
Definition: packet.h:316
AV_CODEC_ID_ADPCM_IMA_ISS
@ AV_CODEC_ID_ADPCM_IMA_ISS
Definition: codec_id.h:392
AV_CODEC_ID_BINKAUDIO_DCT
@ AV_CODEC_ID_BINKAUDIO_DCT
Definition: codec_id.h:483
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:368
FF_CODEC_CB_TYPE_ENCODE
@ FF_CODEC_CB_TYPE_ENCODE
Definition: codec_internal.h:110
AV_CODEC_ID_PCM_F24LE
@ AV_CODEC_ID_PCM_F24LE
Definition: codec_id.h:360
channels
channels
Definition: aptx.h:31
decode.h
ff_thread_get_buffer
int ff_thread_get_buffer(AVCodecContext *avctx, AVFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
Definition: utils.c:914
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:141
AV_CODEC_ID_DERF_DPCM
@ AV_CODEC_ID_DERF_DPCM
Definition: codec_id.h:432
AV_CODEC_ID_PCM_MULAW
@ AV_CODEC_ID_PCM_MULAW
Definition: codec_id.h:332
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:329
ff_thread_release_ext_buffer
void ff_thread_release_ext_buffer(AVCodecContext *avctx, ThreadFrame *f)
Unref a ThreadFrame.
Definition: utils.c:931
ff_thread_await_progress
void ff_thread_await_progress(const ThreadFrame *f, int progress, int field)
Wait for earlier decoding threads to finish reference pictures.
Definition: utils.c:946
AV_CODEC_ID_ADPCM_IMA_SMJPEG
@ AV_CODEC_ID_ADPCM_IMA_SMJPEG
Definition: codec_id.h:370
AV_PIX_FMT_GBRP10LE
@ AV_PIX_FMT_GBRP10LE
planar GBR 4:4:4 30bpp, little-endian
Definition: pixfmt.h:163
state
static struct @344 state
codec_id
enum AVCodecID codec_id
Definition: vaapi_decode.c:388
AV_CODEC_ID_PCM_DVD
@ AV_CODEC_ID_PCM_DVD
Definition: codec_id.h:345
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: defs.h:126
AV_CODEC_ID_H264
@ AV_CODEC_ID_H264
Definition: codec_id.h:79
PutBitContext
Definition: put_bits.h:50
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:408
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: threadframe.h:32
ff_thread_ref_frame
int ff_thread_ref_frame(ThreadFrame *dst, const ThreadFrame *src)
Definition: utils.c:885
AVMatrixEncoding
AVMatrixEncoding
Definition: channel_layout.h:242
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:333
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
threadframe.h
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:390
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:866
AV_CODEC_ID_SP5X
@ AV_CODEC_ID_SP5X
Definition: codec_id.h:62
AV_PIX_FMT_GBRAP12BE
@ AV_PIX_FMT_GBRAP12BE
planar GBR 4:4:4:4 48bpp, big-endian
Definition: pixfmt.h:307
NULL
#define NULL
Definition: coverity.c:32
AV_CODEC_ID_DST
@ AV_CODEC_ID_DST
Definition: codec_id.h:516
AV_CODEC_ID_INTERPLAY_VIDEO
@ AV_CODEC_ID_INTERPLAY_VIDEO
Definition: codec_id.h:91
AV_CODEC_ID_ADPCM_YAMAHA
@ AV_CODEC_ID_ADPCM_YAMAHA
Definition: codec_id.h:379
AV_CODEC_ID_ADPCM_IMA_WS
@ AV_CODEC_ID_ADPCM_IMA_WS
Definition: codec_id.h:369
AV_CODEC_ID_PCM_U24BE
@ AV_CODEC_ID_PCM_U24BE
Definition: codec_id.h:341
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:427
AV_CODEC_ID_PCM_U32BE
@ AV_CODEC_ID_PCM_U32BE
Definition: codec_id.h:337
AVCodecContext::nb_coded_side_data
int nb_coded_side_data
Definition: avcodec.h:1859
AV_CODEC_ID_ADPCM_ARGO
@ AV_CODEC_ID_ADPCM_ARGO
Definition: codec_id.h:407
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
FF_CODEC_CB_TYPE_DECODE_SUB
@ FF_CODEC_CB_TYPE_DECODE_SUB
Definition: codec_internal.h:104
AV_CODEC_ID_ADPCM_IMA_DK4
@ AV_CODEC_ID_ADPCM_IMA_DK4
Definition: codec_id.h:368
AVCodecContext::bit_rate
int64_t bit_rate
the average bitrate
Definition: avcodec.h:448
AVPacketSideData::type
enum AVPacketSideDataType type
Definition: packet.h:318
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:364
AV_CODEC_ID_CINEPAK
@ AV_CODEC_ID_CINEPAK
Definition: codec_id.h:95
ff_slice_thread_init_progress
int ff_slice_thread_init_progress(AVCodecContext *avctx)
Definition: utils.c:955
AV_CODEC_ID_PCM_S64BE
@ AV_CODEC_ID_PCM_S64BE
Definition: codec_id.h:358
AV_CODEC_ID_ZLIB
@ AV_CODEC_ID_ZLIB
Definition: codec_id.h:106
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:365
AVCodec::profiles
const AVProfile * profiles
array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN}
Definition: codec.h:237
av_fast_mallocz
void av_fast_mallocz(void *ptr, unsigned int *size, size_t min_size)
Allocate and clear a buffer, reusing the given one if large enough.
Definition: mem.c:570
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:384
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_PIX_FMT_BGR0
@ AV_PIX_FMT_BGR0
packed BGR 8:8:8, 32bpp, BGRXBGRX... X=unused/undefined
Definition: pixfmt.h:258
AV_CODEC_ID_ROQ_DPCM
@ AV_CODEC_ID_ROQ_DPCM
Definition: codec_id.h:426
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:295
AVProfile::profile
int profile
Definition: codec.h:197
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
AVCodecParameters::ch_layout
AVChannelLayout ch_layout
Audio only.
Definition: codec_par.h:213
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_chroma_location_pos_to_enum
enum AVChromaLocation av_chroma_location_pos_to_enum(int xpos, int ypos)
Converts swscale x/y chroma position to AVChromaLocation.
Definition: pixdesc.c:3288
AV_CODEC_ID_VP6A
@ AV_CODEC_ID_VP6A
Definition: codec_id.h:158
ff_color_frame
void ff_color_frame(AVFrame *frame, const int c[4])
Definition: utils.c:403
index
int index
Definition: gxfenc.c:89
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:178
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:263
AV_CODEC_ID_PCM_S24LE_PLANAR
@ AV_CODEC_ID_PCM_S24LE_PLANAR
Definition: codec_id.h:354
AV_CODEC_ID_ADPCM_XA
@ AV_CODEC_ID_ADPCM_XA
Definition: codec_id.h:373
AV_CODEC_ID_GSM
@ AV_CODEC_ID_GSM
as in Berlin toast format
Definition: codec_id.h:453
AVCodecID
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: codec_id.h:49
AV_CODEC_ID_PCM_VIDC
@ AV_CODEC_ID_PCM_VIDC
Definition: codec_id.h:361
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:270
avcodec_find_decoder
const AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
Definition: allcodecs.c:951
AV_CODEC_ID_MJPEGB
@ AV_CODEC_ID_MJPEGB
Definition: codec_id.h:60
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
startcode.h
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:521
av_codec_is_decoder
int av_codec_is_decoder(const AVCodec *avcodec)
Definition: utils.c:83
AV_CODEC_ID_QCELP
@ AV_CODEC_ID_QCELP
Definition: codec_id.h:459
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:484
f
f
Definition: af_crystalizer.c:122
AV_CODEC_ID_PCM_S24LE
@ AV_CODEC_ID_PCM_S24LE
Definition: codec_id.h:338
ff_get_buffer
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
Definition: decode.c:1450
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:297
AV_CODEC_ID_ADPCM_ADX
@ AV_CODEC_ID_ADPCM_ADX
Definition: codec_id.h:374
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:353
AV_SAMPLE_FMT_U8P
@ AV_SAMPLE_FMT_U8P
unsigned 8 bits, planar
Definition: samplefmt.h:63
codec_internal.h
shift
static int shift(int a, int b)
Definition: bonk.c:253
AV_CODEC_ID_ADPCM_IMA_RAD
@ AV_CODEC_ID_ADPCM_IMA_RAD
Definition: codec_id.h:399
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:260
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:509
AV_CODEC_ID_ADPCM_IMA_ALP
@ AV_CODEC_ID_ADPCM_IMA_ALP
Definition: codec_id.h:411
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:266
bps
unsigned bps
Definition: movenc.c:1648
AV_CODEC_ID_ADPCM_SWF
@ AV_CODEC_ID_ADPCM_SWF
Definition: codec_id.h:378
size
int size
Definition: twinvq_data.h:10344
AV_CODEC_ID_SMVJPEG
@ AV_CODEC_ID_SMVJPEG
Definition: codec_id.h:267
avpriv_codec_get_cap_skip_frame_fill_param
int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec)
Definition: utils.c:432
AV_NUM_DATA_POINTERS
#define AV_NUM_DATA_POINTERS
Definition: frame.h:326
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
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: codec_internal.h:54
AV_PIX_FMT_GBRP9BE
@ AV_PIX_FMT_GBRP9BE
planar GBR 4:4:4 27bpp, big-endian
Definition: pixfmt.h:160
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:826
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:1022
AVFrameSideData::data
uint8_t * data
Definition: frame.h:233
ffcodec
static const av_always_inline FFCodec * ffcodec(const AVCodec *codec)
Definition: codec_internal.h:317
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
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_thread_get_ext_buffer
int ff_thread_get_ext_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around ff_get_buffer() for frame-multithreaded codecs.
Definition: utils.c:919
FFCodec::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_internal.h:253
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:1147
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:74
AV_SAMPLE_FMT_S16P
@ AV_SAMPLE_FMT_S16P
signed 16 bits, planar
Definition: samplefmt.h:64
AVChromaLocation
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:680
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 *avcodec)
Definition: utils.c:75
AV_CODEC_ID_VP5
@ AV_CODEC_ID_VP5
Definition: codec_id.h:142
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: defs.h:156
avcodec_get_name
const char * avcodec_get_name(enum AVCodecID id)
Get the name of a codec.
Definition: utils.c:436
AV_CODEC_ID_MJPEG
@ AV_CODEC_ID_MJPEG
Definition: codec_id.h:59
AVCodecContext::bits_per_coded_sample
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
Definition: avcodec.h:1444
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:366
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
FFCodec::caps_internal
unsigned caps_internal
Internal codec capabilities FF_CODEC_CAP_*.
Definition: codec_internal.h:128
AV_CODEC_ID_ATRAC1
@ AV_CODEC_ID_ATRAC1
Definition: codec_id.h:481
AV_CODEC_ID_RA_288
@ AV_CODEC_ID_RA_288
Definition: codec_id.h:423
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:938
AV_CODEC_ID_ADPCM_MTAF
@ AV_CODEC_ID_ADPCM_MTAF
Definition: codec_id.h:405
AV_CODEC_ID_NONE
@ AV_CODEC_ID_NONE
Definition: codec_id.h:50
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
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:456
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:499
AV_SAMPLE_FMT_U8
@ AV_SAMPLE_FMT_U8
unsigned 8 bits
Definition: samplefmt.h:57
AV_CODEC_ID_EVRC
@ AV_CODEC_ID_EVRC
Definition: codec_id.h:506
AVCodecParameters::block_align
int block_align
Audio only.
Definition: codec_par.h:185
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:1008
AV_CODEC_ID_DSD_LSBF_PLANAR
@ AV_CODEC_ID_DSD_LSBF_PLANAR
Definition: codec_id.h:510
AVSampleFormat
AVSampleFormat
Audio sample formats.
Definition: samplefmt.h:55
AV_CODEC_ID_PCM_F64BE
@ AV_CODEC_ID_PCM_F64BE
Definition: codec_id.h:348
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:49
AV_PIX_FMT_RGB555
#define AV_PIX_FMT_RGB555
Definition: pixfmt.h:447
av_xiphlacing
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
Encode extradata length to a buffer.
Definition: utils.c:852
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
AV_CODEC_ID_ADPCM_IMA_APM
@ AV_CODEC_ID_ADPCM_IMA_APM
Definition: codec_id.h:410
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:335
av_frame_unref
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:487
av_get_audio_frame_duration
int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
Return audio frame duration.
Definition: utils.c:808
AV_SAMPLE_FMT_S16
@ AV_SAMPLE_FMT_S16
signed 16 bits
Definition: samplefmt.h:58
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:264
AVCodec::name
const char * name
Name of the codec implementation.
Definition: codec.h:211
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:146
AV_CODEC_ID_PCM_F16LE
@ AV_CODEC_ID_PCM_F16LE
Definition: codec_id.h:359
AV_CODEC_ID_ADPCM_IMA_DAT4
@ AV_CODEC_ID_ADPCM_IMA_DAT4
Definition: codec_id.h:404
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:121
profile
int profile
Definition: mxfenc.c:2006
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:571
AVCodecContext::pix_fmt
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:608
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:1126
avcodec.h
AV_CODEC_ID_IAC
@ AV_CODEC_ID_IAC
Definition: codec_id.h:493
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:465
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:1647
ret
ret
Definition: filter_design.txt:187
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:1052
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:595
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:201
AV_INPUT_BUFFER_PADDING_SIZE
#define AV_INPUT_BUFFER_PADDING_SIZE
Definition: defs.h:40
AV_PIX_FMT_GBRP12BE
@ AV_PIX_FMT_GBRP12BE
planar GBR 4:4:4 36bpp, big-endian
Definition: pixfmt.h:272
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:268
AV_CODEC_ID_AMV
@ AV_CODEC_ID_AMV
Definition: codec_id.h:159
AVCodecContext
main external API structure.
Definition: avcodec.h:398
ff_slice_thread_allocz_entries
int ff_slice_thread_allocz_entries(AVCodecContext *avctx, int count)
Definition: utils.c:960
ThreadFrame
Definition: threadframe.h:27
AV_CODEC_ID_ADPCM_G726LE
@ AV_CODEC_ID_ADPCM_G726LE
Definition: codec_id.h:400
channel_layout.h
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:63
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:67
AV_CODEC_ID_PCM_U32LE
@ AV_CODEC_ID_PCM_U32LE
Definition: codec_id.h:336
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:132
FF_CODEC_CB_TYPE_RECEIVE_FRAME
@ FF_CODEC_CB_TYPE_RECEIVE_FRAME
Definition: codec_internal.h:107
FFCodec::cb_type
unsigned cb_type
This field determines the type of the codec (decoder/encoder) and also the exact callback cb implemen...
Definition: codec_internal.h:135
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 *avcodec, int index)
Retrieve supported hardware configurations for a codec.
Definition: utils.c:873
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:456
FF_DISABLE_DEPRECATION_WARNINGS
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:81
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:158
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:553
AV_CODEC_ID_ADPCM_THP
@ AV_CODEC_ID_ADPCM_THP
Definition: codec_id.h:383
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:83
AV_CODEC_ID_PCM_S32LE
@ AV_CODEC_ID_PCM_S32LE
Definition: codec_id.h:334
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:104
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
mem.h
bcd2uint
static unsigned bcd2uint(uint8_t bcd)
Definition: utils.c:1053
AV_CODEC_ID_ADPCM_SBPRO_4
@ AV_CODEC_ID_ADPCM_SBPRO_4
Definition: codec_id.h:380
AV_CODEC_ID_PCM_U8
@ AV_CODEC_ID_PCM_U8
Definition: codec_id.h:331
AV_CODEC_ID_RPZA
@ AV_CODEC_ID_RPZA
Definition: codec_id.h:94
AV_CODEC_ID_SDX2_DPCM
@ AV_CODEC_ID_SDX2_DPCM
Definition: codec_id.h:430
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:91
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:106
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:231
flush_put_bits
static void flush_put_bits(PutBitContext *s)
Pad the end of the output stream with zeros.
Definition: put_bits.h:143
AV_CODEC_ID_PCM_S24DAUD
@ AV_CODEC_ID_PCM_S24DAUD
Definition: codec_id.h:342
AV_CODEC_ID_ADPCM_IMA_SSI
@ AV_CODEC_ID_ADPCM_IMA_SSI
Definition: codec_id.h:408
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
map
const VDPAUPixFmtMap * map
Definition: hwcontext_vdpau.c:71
AV_CODEC_ID_PCM_F64LE
@ AV_CODEC_ID_PCM_F64LE
Definition: codec_id.h:349
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:1062
AVCodecContext::codec_tag
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
Definition: avcodec.h:423
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:78
AV_CODEC_ID_ADPCM_IMA_MOFLEX
@ AV_CODEC_ID_ADPCM_IMA_MOFLEX
Definition: codec_id.h:414
AVCodecParameters::codec_id
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: codec_par.h:62
AV_CODEC_ID_ADPCM_IMA_WAV
@ AV_CODEC_ID_ADPCM_IMA_WAV
Definition: codec_id.h:366
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:34
av_fast_malloc
void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size)
Allocate a buffer, reusing the given one if large enough.
Definition: mem.c:565
src
INIT_CLIP pixel * src
Definition: h264pred_template.c:418
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:296
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
FFMAX3
#define FFMAX3(a, b, c)
Definition: macros.h:48
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
AV_CODEC_ID_ILBC
@ AV_CODEC_ID_ILBC
Definition: codec_id.h:494
AV_PIX_FMT_GBRP14LE
@ AV_PIX_FMT_GBRP14LE
planar GBR 4:4:4 42bpp, little-endian
Definition: pixfmt.h:275
AV_CODEC_ID_PCM_S8_PLANAR
@ AV_CODEC_ID_PCM_S8_PLANAR
Definition: codec_id.h:353
AVCodecContext::width
int width
picture width / height.
Definition: avcodec.h:571
AV_CODEC_ID_PCM_U16LE
@ AV_CODEC_ID_PCM_U16LE
Definition: codec_id.h:328
imgutils.h
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
AV_CODEC_ID_DFPWM
@ AV_CODEC_ID_DFPWM
Definition: codec_id.h:531
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:347
AVCodecParameters::bit_rate
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
Definition: codec_par.h:91
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
AVCodecHWConfig
Definition: codec.h:358
AV_CODEC_ID_ADPCM_4XM
@ AV_CODEC_ID_ADPCM_4XM
Definition: codec_id.h:372
AV_SAMPLE_FMT_DBL
@ AV_SAMPLE_FMT_DBL
double
Definition: samplefmt.h:61
avcodec_descriptor_get
const AVCodecDescriptor * avcodec_descriptor_get(enum AVCodecID id)
Definition: codec_desc.c:3617
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:323
AV_CODEC_ID_APTX
@ AV_CODEC_ID_APTX
Definition: codec_id.h:520
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:463
AV_CODEC_ID_ADPCM_PSX
@ AV_CODEC_ID_ADPCM_PSX
Definition: codec_id.h:402
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:363
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:942
AV_SAMPLE_FMT_S32
@ AV_SAMPLE_FMT_S32
signed 32 bits
Definition: samplefmt.h:59
AV_CODEC_ID_FTR
@ AV_CODEC_ID_FTR
Definition: codec_id.h:535
AV_CODEC_ID_LJPEG
@ AV_CODEC_ID_LJPEG
Definition: codec_id.h:61
AV_CODEC_ID_MP1
@ AV_CODEC_ID_MP1
Definition: codec_id.h:477
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:265
AV_CODEC_ID_PCM_S24BE
@ AV_CODEC_ID_PCM_S24BE
Definition: codec_id.h:339
ff_thread_init
int ff_thread_init(AVCodecContext *s)
Definition: utils.c:845
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:60
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:768
AV_CODEC_ID_APTX_HD
@ AV_CODEC_ID_APTX_HD
Definition: codec_id.h:521
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:468
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:381
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