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  if (s->codec_id == AV_CODEC_ID_BINKVIDEO)
247  w_align = 16*2;
248  break;
249  case AV_PIX_FMT_YUV411P:
250  case AV_PIX_FMT_YUVJ411P:
252  w_align = 32;
253  h_align = 16 * 2;
254  break;
255  case AV_PIX_FMT_YUV410P:
256  if (s->codec_id == AV_CODEC_ID_SVQ1) {
257  w_align = 64;
258  h_align = 64;
259  }
260  break;
261  case AV_PIX_FMT_RGB555:
262  if (s->codec_id == AV_CODEC_ID_RPZA) {
263  w_align = 4;
264  h_align = 4;
265  }
266  if (s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
267  w_align = 8;
268  h_align = 8;
269  }
270  break;
271  case AV_PIX_FMT_PAL8:
272  case AV_PIX_FMT_BGR8:
273  case AV_PIX_FMT_RGB8:
274  if (s->codec_id == AV_CODEC_ID_SMC ||
275  s->codec_id == AV_CODEC_ID_CINEPAK) {
276  w_align = 4;
277  h_align = 4;
278  }
279  if (s->codec_id == AV_CODEC_ID_JV ||
280  s->codec_id == AV_CODEC_ID_ARGO ||
281  s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
282  w_align = 8;
283  h_align = 8;
284  }
285  if (s->codec_id == AV_CODEC_ID_MJPEG ||
286  s->codec_id == AV_CODEC_ID_MJPEGB ||
287  s->codec_id == AV_CODEC_ID_LJPEG ||
288  s->codec_id == AV_CODEC_ID_SMVJPEG ||
289  s->codec_id == AV_CODEC_ID_AMV ||
290  s->codec_id == AV_CODEC_ID_SP5X ||
291  s->codec_id == AV_CODEC_ID_JPEGLS) {
292  w_align = 8;
293  h_align = 2*8;
294  }
295  break;
296  case AV_PIX_FMT_BGR24:
297  if ((s->codec_id == AV_CODEC_ID_MSZH) ||
298  (s->codec_id == AV_CODEC_ID_ZLIB)) {
299  w_align = 4;
300  h_align = 4;
301  }
302  break;
303  case AV_PIX_FMT_RGB24:
304  if (s->codec_id == AV_CODEC_ID_CINEPAK) {
305  w_align = 4;
306  h_align = 4;
307  }
308  break;
309  case AV_PIX_FMT_BGR0:
310  if (s->codec_id == AV_CODEC_ID_ARGO) {
311  w_align = 8;
312  h_align = 8;
313  }
314  break;
315  default:
316  break;
317  }
318 
319  if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
320  w_align = FFMAX(w_align, 8);
321  }
322 
323  *width = FFALIGN(*width, w_align);
324  *height = FFALIGN(*height, h_align);
325  if (s->codec_id == AV_CODEC_ID_H264 || s->lowres ||
326  s->codec_id == AV_CODEC_ID_VP5 || s->codec_id == AV_CODEC_ID_VP6 ||
327  s->codec_id == AV_CODEC_ID_VP6F || s->codec_id == AV_CODEC_ID_VP6A
328  ) {
329  // some of the optimized chroma MC reads one line too much
330  // which is also done in mpeg decoders with lowres > 0
331  *height += 2;
332 
333  // H.264 uses edge emulation for out of frame motion vectors, for this
334  // it requires a temporary area large enough to hold a 21x21 block,
335  // increasing witdth ensure that the temporary area is large enough,
336  // the next rounded up width is 32
337  *width = FFMAX(*width, 32);
338  }
339 
340  for (i = 0; i < 4; i++)
341  linesize_align[i] = STRIDE_ALIGN;
342 }
343 
345 {
346  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
347  int chroma_shift = desc->log2_chroma_w;
348  int linesize_align[AV_NUM_DATA_POINTERS];
349  int align;
350 
351  avcodec_align_dimensions2(s, width, height, linesize_align);
352  align = FFMAX(linesize_align[0], linesize_align[3]);
353  linesize_align[1] <<= chroma_shift;
354  linesize_align[2] <<= chroma_shift;
355  align = FFMAX3(align, linesize_align[1], linesize_align[2]);
356  *width = FFALIGN(*width, align);
357 }
358 #if FF_API_AVCODEC_CHROMA_POS
359 int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
360 {
361  return av_chroma_location_enum_to_pos(xpos, ypos, pos);
362 }
363 
365 {
366  return av_chroma_location_pos_to_enum(xpos, ypos);
367 }
368 #endif
369 
370 int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
371  enum AVSampleFormat sample_fmt, const uint8_t *buf,
372  int buf_size, int align)
373 {
374  int ch, planar, needed_size, ret = 0;
375 
376  needed_size = av_samples_get_buffer_size(NULL, nb_channels,
377  frame->nb_samples, sample_fmt,
378  align);
379  if (buf_size < needed_size)
380  return AVERROR(EINVAL);
381 
382  planar = av_sample_fmt_is_planar(sample_fmt);
383  if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
384  if (!FF_ALLOCZ_TYPED_ARRAY(frame->extended_data, nb_channels))
385  return AVERROR(ENOMEM);
386  } else {
387  frame->extended_data = frame->data;
388  }
389 
390  if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
391  (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
392  sample_fmt, align)) < 0) {
393  if (frame->extended_data != frame->data)
394  av_freep(&frame->extended_data);
395  return ret;
396  }
397  if (frame->extended_data != frame->data) {
398  for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
399  frame->data[ch] = frame->extended_data[ch];
400  }
401 
402  return ret;
403 }
404 
405 void ff_color_frame(AVFrame *frame, const int c[4])
406 {
408  int p, y;
409 
411 
412  for (p = 0; p<desc->nb_components; p++) {
413  uint8_t *dst = frame->data[p];
414  int is_chroma = p == 1 || p == 2;
415  int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
416  int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
417  if (desc->comp[0].depth >= 9) {
418  ((uint16_t*)dst)[0] = c[p];
419  av_memcpy_backptr(dst + 2, 2, bytes - 2);
420  dst += frame->linesize[p];
421  for (y = 1; y < height; y++) {
422  memcpy(dst, frame->data[p], 2*bytes);
423  dst += frame->linesize[p];
424  }
425  } else {
426  for (y = 0; y < height; y++) {
427  memset(dst, c[p], bytes);
428  dst += frame->linesize[p];
429  }
430  }
431  }
432 }
433 
436 }
437 
438 const char *avcodec_get_name(enum AVCodecID id)
439 {
440  const AVCodecDescriptor *cd;
441  const AVCodec *codec;
442 
443  if (id == AV_CODEC_ID_NONE)
444  return "none";
445  cd = avcodec_descriptor_get(id);
446  if (cd)
447  return cd->name;
448  av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
449  codec = avcodec_find_decoder(id);
450  if (codec)
451  return codec->name;
452  codec = avcodec_find_encoder(id);
453  if (codec)
454  return codec->name;
455  return "unknown_codec";
456 }
457 
458 const char *av_get_profile_name(const AVCodec *codec, int profile)
459 {
460  const AVProfile *p;
461  if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
462  return NULL;
463 
464  for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
465  if (p->profile == profile)
466  return p->name;
467 
468  return NULL;
469 }
470 
472 {
474  const AVProfile *p;
475 
476  if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
477  return NULL;
478 
479  for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
480  if (p->profile == profile)
481  return p->name;
482 
483  return NULL;
484 }
485 
487 {
488  switch (codec_id) {
489  case AV_CODEC_ID_DFPWM:
490  return 1;
506  return 4;
514  case AV_CODEC_ID_PCM_S8:
516  case AV_CODEC_ID_PCM_SGA:
517  case AV_CODEC_ID_PCM_U8:
522  return 8;
529  return 16;
536  return 24;
546  return 32;
551  return 64;
552  default:
553  return 0;
554  }
555 }
556 
558 {
559  static const enum AVCodecID map[][2] = {
571  };
572  if (fmt < 0 || fmt >= FF_ARRAY_ELEMS(map))
573  return AV_CODEC_ID_NONE;
574  if (be < 0 || be > 1)
575  be = AV_NE(1, 0);
576  return map[fmt][be];
577 }
578 
580 {
581  switch (codec_id) {
582  case AV_CODEC_ID_DFPWM:
583  return 1;
585  return 2;
587  return 3;
593  return 4;
594  default:
596  }
597 }
598 
599 static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
600  uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
601  uint8_t * extradata, int frame_size, int frame_bytes)
602 {
604  int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
605 
606  /* codecs with an exact constant bits per sample */
607  if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
608  return (frame_bytes * 8LL) / (bps * ch);
609  bps = bits_per_coded_sample;
610 
611  /* codecs with a fixed packet duration */
612  switch (id) {
613  case AV_CODEC_ID_ADPCM_ADX: return 32;
614  case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
615  case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
616  case AV_CODEC_ID_AMR_NB:
617  case AV_CODEC_ID_EVRC:
618  case AV_CODEC_ID_GSM:
619  case AV_CODEC_ID_QCELP:
620  case AV_CODEC_ID_RA_288: return 160;
621  case AV_CODEC_ID_AMR_WB:
622  case AV_CODEC_ID_GSM_MS: return 320;
623  case AV_CODEC_ID_MP1: return 384;
624  case AV_CODEC_ID_ATRAC1: return 512;
625  case AV_CODEC_ID_ATRAC9:
626  case AV_CODEC_ID_ATRAC3:
627  if (framecount > INT_MAX/1024)
628  return 0;
629  return 1024 * framecount;
630  case AV_CODEC_ID_ATRAC3P: return 2048;
631  case AV_CODEC_ID_MP2:
632  case AV_CODEC_ID_MUSEPACK7: return 1152;
633  case AV_CODEC_ID_AC3: return 1536;
634  case AV_CODEC_ID_FTR: return 1024;
635  }
636 
637  if (sr > 0) {
638  /* calc from sample rate */
639  if (id == AV_CODEC_ID_TTA)
640  return 256 * sr / 245;
641  else if (id == AV_CODEC_ID_DST)
642  return 588 * sr / 44100;
643  else if (id == AV_CODEC_ID_BINKAUDIO_DCT) {
644  if (sr / 22050 > 22)
645  return 0;
646  return (480 << (sr / 22050));
647  }
648 
649  if (id == AV_CODEC_ID_MP3)
650  return sr <= 24000 ? 576 : 1152;
651  }
652 
653  if (ba > 0) {
654  /* calc from block_align */
655  if (id == AV_CODEC_ID_SIPR) {
656  switch (ba) {
657  case 20: return 160;
658  case 19: return 144;
659  case 29: return 288;
660  case 37: return 480;
661  }
662  } else if (id == AV_CODEC_ID_ILBC) {
663  switch (ba) {
664  case 38: return 160;
665  case 50: return 240;
666  }
667  }
668  }
669 
670  if (frame_bytes > 0) {
671  /* calc from frame_bytes only */
672  if (id == AV_CODEC_ID_TRUESPEECH)
673  return 240 * (frame_bytes / 32);
674  if (id == AV_CODEC_ID_NELLYMOSER)
675  return 256 * (frame_bytes / 64);
676  if (id == AV_CODEC_ID_RA_144)
677  return 160 * (frame_bytes / 20);
678  if (id == AV_CODEC_ID_APTX)
679  return 4 * (frame_bytes / 4);
680  if (id == AV_CODEC_ID_APTX_HD)
681  return 4 * (frame_bytes / 6);
682 
683  if (bps > 0) {
684  /* calc from frame_bytes and bits_per_coded_sample */
686  return frame_bytes * 8 / bps;
687  }
688 
689  if (ch > 0 && ch < INT_MAX/16) {
690  /* calc from frame_bytes and channels */
691  switch (id) {
693  return frame_bytes / (40 * ch) * 256;
695  return (frame_bytes - 4 * ch) / (128 * ch) * 256;
697  return frame_bytes / (9 * ch) * 16;
700  frame_bytes /= 16 * ch;
701  if (frame_bytes > INT_MAX / 28)
702  return 0;
703  return frame_bytes * 28;
708  return (frame_bytes - 4 * ch) * 2 / ch;
710  return (frame_bytes - 4) * 2 / ch;
712  return (frame_bytes - 8) * 2;
715  if (extradata)
716  return frame_bytes * 14LL / (8 * ch);
717  break;
719  return (frame_bytes / 128) * 224 / ch;
721  return (frame_bytes - 6 - ch) / ch;
723  return (frame_bytes - 8) / ch;
725  return (frame_bytes - 2 * ch) / ch;
726  case AV_CODEC_ID_MACE3:
727  return 3 * frame_bytes / ch;
728  case AV_CODEC_ID_MACE6:
729  return 6 * frame_bytes / ch;
730  case AV_CODEC_ID_PCM_LXF:
731  return 2 * (frame_bytes / (5 * ch));
732  case AV_CODEC_ID_IAC:
733  case AV_CODEC_ID_IMC:
734  return 4 * frame_bytes / ch;
735  }
736 
737  if (tag) {
738  /* calc from frame_bytes, channels, and codec_tag */
739  if (id == AV_CODEC_ID_SOL_DPCM) {
740  if (tag == 3)
741  return frame_bytes / ch;
742  else
743  return frame_bytes * 2 / ch;
744  }
745  }
746 
747  if (ba > 0) {
748  /* calc from frame_bytes, channels, and block_align */
749  int blocks = frame_bytes / ba;
750  int64_t tmp = 0;
751  switch (id) {
753  if (bps < 2 || bps > 5)
754  return 0;
755  tmp = blocks * (1LL + (ba - 4 * ch) / (bps * ch) * 8);
756  break;
758  tmp = blocks * (((ba - 16LL) * 2 / 3 * 4) / ch);
759  break;
761  tmp = blocks * (1 + (ba - 4LL * ch) * 2 / ch);
762  break;
764  tmp = blocks * ((ba - 4LL * ch) * 2 / ch);
765  break;
767  tmp = blocks * (2 + (ba - 7LL * ch) * 2LL / ch);
768  break;
770  tmp = blocks * (ba - 16LL) * 2 / ch;
771  break;
773  tmp = blocks * 32;
774  break;
775  }
776  if (tmp) {
777  if (tmp != (int)tmp)
778  return 0;
779  return tmp;
780  }
781  }
782 
783  if (bps > 0) {
784  /* calc from frame_bytes, channels, and bits_per_coded_sample */
785  switch (id) {
786  case AV_CODEC_ID_PCM_DVD:
787  if(bps<4 || frame_bytes<3)
788  return 0;
789  return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
791  if(bps<4 || frame_bytes<4)
792  return 0;
793  return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
794  case AV_CODEC_ID_S302M:
795  return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
796  }
797  }
798  }
799  }
800 
801  /* Fall back on using frame_size */
802  if (frame_size > 1 && frame_bytes)
803  return frame_size;
804 
805  //For WMA we currently have no other means to calculate duration thus we
806  //do it here by assuming CBR, which is true for all known cases.
807  if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
808  if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
809  return (frame_bytes * 8LL * sr) / bitrate;
810  }
811 
812  return 0;
813 }
814 
815 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
816 {
817  int channels = avctx->ch_layout.nb_channels;
818  int duration;
819 #if FF_API_OLD_CHANNEL_LAYOUT
821  if (!channels)
822  channels = avctx->channels;
824 #endif
826  channels, avctx->block_align,
827  avctx->codec_tag, avctx->bits_per_coded_sample,
828  avctx->bit_rate, avctx->extradata, avctx->frame_size,
829  frame_bytes);
830  return FFMAX(0, duration);
831 }
832 
834 {
835  int channels = par->ch_layout.nb_channels;
836  int duration;
837 #if FF_API_OLD_CHANNEL_LAYOUT
839  if (!channels)
840  channels = par->channels;
842 #endif
844  channels, par->block_align,
845  par->codec_tag, par->bits_per_coded_sample,
846  par->bit_rate, par->extradata, par->frame_size,
847  frame_bytes);
848  return FFMAX(0, duration);
849 }
850 
851 #if !HAVE_THREADS
853 {
854  return -1;
855 }
856 
857 #endif
858 
859 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
860 {
861  unsigned int n = 0;
862 
863  while (v >= 0xff) {
864  *s++ = 0xff;
865  v -= 0xff;
866  n++;
867  }
868  *s = v;
869  n++;
870  return n;
871 }
872 
873 int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
874 {
875  int i;
876  for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
877  return i;
878 }
879 
881 {
882  const FFCodec *const codec = ffcodec(avcodec);
883  int i;
884  if (!codec->hw_configs || index < 0)
885  return NULL;
886  for (i = 0; i <= index; i++)
887  if (!codec->hw_configs[i])
888  return NULL;
889  return &codec->hw_configs[index]->public;
890 }
891 
893 {
894  int ret;
895 
896  dst->owner[0] = src->owner[0];
897  dst->owner[1] = src->owner[1];
898 
899  ret = av_frame_ref(dst->f, src->f);
900  if (ret < 0)
901  return ret;
902 
903  av_assert0(!dst->progress);
904 
905  if (src->progress &&
906  !(dst->progress = av_buffer_ref(src->progress))) {
907  ff_thread_release_ext_buffer(dst->owner[0], dst);
908  return AVERROR(ENOMEM);
909  }
910 
911  return 0;
912 }
913 
914 #if !HAVE_THREADS
915 
917 {
918  return ff_get_format(avctx, fmt);
919 }
920 
922 {
923  return ff_get_buffer(avctx, f, flags);
924 }
925 
927 {
928  f->owner[0] = f->owner[1] = avctx;
929  return ff_get_buffer(avctx, f->f, flags);
930 }
931 
933 {
934  if (f)
935  av_frame_unref(f);
936 }
937 
939 {
940  f->owner[0] = f->owner[1] = NULL;
941  if (f->f)
942  av_frame_unref(f->f);
943 }
944 
946 {
947 }
948 
949 void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
950 {
951 }
952 
953 void ff_thread_await_progress(const ThreadFrame *f, int progress, int field)
954 {
955 }
956 
958 {
959  return 1;
960 }
961 
963 {
964  return 0;
965 }
966 
968 {
969  return 0;
970 }
971 
972 void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
973 {
974 }
975 
976 void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
977 {
978 }
979 
980 #endif
981 
982 const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
983  const uint8_t *end,
984  uint32_t *av_restrict state)
985 {
986  int i;
987 
988  av_assert0(p <= end);
989  if (p >= end)
990  return end;
991 
992  for (i = 0; i < 3; i++) {
993  uint32_t tmp = *state << 8;
994  *state = tmp + *(p++);
995  if (tmp == 0x100 || p == end)
996  return p;
997  }
998 
999  while (p < end) {
1000  if (p[-1] > 1 ) p += 3;
1001  else if (p[-2] ) p += 2;
1002  else if (p[-3]|(p[-1]-1)) p++;
1003  else {
1004  p++;
1005  break;
1006  }
1007  }
1008 
1009  p = FFMIN(p, end) - 4;
1010  *state = AV_RB32(p);
1011 
1012  return p + 4;
1013 }
1014 
1016 {
1017  AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
1018  if (!props)
1019  return NULL;
1020 
1021  if (size)
1022  *size = sizeof(*props);
1023 
1024  props->vbv_delay = UINT64_MAX;
1025 
1026  return props;
1027 }
1028 
1030 {
1032  AVCPBProperties *props;
1033  size_t size;
1034  int i;
1035 
1036  for (i = 0; i < avctx->nb_coded_side_data; i++)
1038  return (AVCPBProperties *)avctx->coded_side_data[i].data;
1039 
1040  props = av_cpb_properties_alloc(&size);
1041  if (!props)
1042  return NULL;
1043 
1044  tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
1045  if (!tmp) {
1046  av_freep(&props);
1047  return NULL;
1048  }
1049 
1050  avctx->coded_side_data = tmp;
1051  avctx->nb_coded_side_data++;
1052 
1054  avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
1055  avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
1056 
1057  return props;
1058 }
1059 
1060 static unsigned bcd2uint(uint8_t bcd)
1061 {
1062  unsigned low = bcd & 0xf;
1063  unsigned high = bcd >> 4;
1064  if (low > 9 || high > 9)
1065  return 0;
1066  return low + 10*high;
1067 }
1068 
1069 int ff_alloc_timecode_sei(const AVFrame *frame, AVRational rate, size_t prefix_len,
1070  void **data, size_t *sei_size)
1071 {
1072  AVFrameSideData *sd = NULL;
1073  uint8_t *sei_data;
1074  PutBitContext pb;
1075  uint32_t *tc;
1076  int m;
1077 
1078  if (frame)
1080 
1081  if (!sd) {
1082  *data = NULL;
1083  return 0;
1084  }
1085  tc = (uint32_t*)sd->data;
1086  m = tc[0] & 3;
1087 
1088  *sei_size = sizeof(uint32_t) * 4;
1089  *data = av_mallocz(*sei_size + prefix_len);
1090  if (!*data)
1091  return AVERROR(ENOMEM);
1092  sei_data = (uint8_t*)*data + prefix_len;
1093 
1094  init_put_bits(&pb, sei_data, *sei_size);
1095  put_bits(&pb, 2, m); // num_clock_ts
1096 
1097  for (int j = 1; j <= m; j++) {
1098  uint32_t tcsmpte = tc[j];
1099  unsigned hh = bcd2uint(tcsmpte & 0x3f); // 6-bit hours
1100  unsigned mm = bcd2uint(tcsmpte>>8 & 0x7f); // 7-bit minutes
1101  unsigned ss = bcd2uint(tcsmpte>>16 & 0x7f); // 7-bit seconds
1102  unsigned ff = bcd2uint(tcsmpte>>24 & 0x3f); // 6-bit frames
1103  unsigned drop = tcsmpte & 1<<30 && !0; // 1-bit drop if not arbitrary bit
1104 
1105  /* Calculate frame number of HEVC by SMPTE ST 12-1:2014 Sec 12.2 if rate > 30FPS */
1106  if (av_cmp_q(rate, (AVRational) {30, 1}) == 1) {
1107  unsigned pc;
1108  ff *= 2;
1109  if (av_cmp_q(rate, (AVRational) {50, 1}) == 0)
1110  pc = !!(tcsmpte & 1 << 7);
1111  else
1112  pc = !!(tcsmpte & 1 << 23);
1113  ff = (ff + pc) & 0x7f;
1114  }
1115 
1116  put_bits(&pb, 1, 1); // clock_timestamp_flag
1117  put_bits(&pb, 1, 1); // units_field_based_flag
1118  put_bits(&pb, 5, 0); // counting_type
1119  put_bits(&pb, 1, 1); // full_timestamp_flag
1120  put_bits(&pb, 1, 0); // discontinuity_flag
1121  put_bits(&pb, 1, drop);
1122  put_bits(&pb, 9, ff);
1123  put_bits(&pb, 6, ss);
1124  put_bits(&pb, 6, mm);
1125  put_bits(&pb, 5, hh);
1126  put_bits(&pb, 5, 0);
1127  }
1128  flush_put_bits(&pb);
1129 
1130  return 0;
1131 }
1132 
1134 {
1135  AVRational framerate = avctx->framerate;
1136  int bits_per_coded_sample = avctx->bits_per_coded_sample;
1137  int64_t bitrate;
1138 
1139  if (!(framerate.num && framerate.den))
1140  framerate = av_inv_q(avctx->time_base);
1141  if (!(framerate.num && framerate.den))
1142  return 0;
1143 
1144  if (!bits_per_coded_sample) {
1146  bits_per_coded_sample = av_get_bits_per_pixel(desc);
1147  }
1148  bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
1149  framerate.num / framerate.den;
1150 
1151  return bitrate;
1152 }
1153 
1154 int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
1155  const int * array_valid_values, int default_value)
1156 {
1157  int i = 0, ref_val;
1158 
1159  while (1) {
1160  ref_val = array_valid_values[i];
1161  if (ref_val == INT_MAX)
1162  break;
1163  if (val == ref_val)
1164  return val;
1165  i++;
1166  }
1167  /* val is not a valid value */
1169  "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
1170  return default_value;
1171 }
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:1068
AV_CODEC_ID_MACE6
@ AV_CODEC_ID_MACE6
Definition: codec_id.h:448
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:359
AV_CODEC_ID_DSD_LSBF
@ AV_CODEC_ID_DSD_LSBF
Definition: codec_id.h:511
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:441
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:124
ff_thread_release_buffer
void ff_thread_release_buffer(AVCodecContext *avctx, AVFrame *f)
Wrapper around release_buffer() frame-for multithreaded codecs.
Definition: utils.c:932
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:1040
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:976
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:2888
AV_CODEC_ID_8SVX_EXP
@ AV_CODEC_ID_8SVX_EXP
Definition: codec_id.h:492
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:972
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:1891
ff_thread_can_start_frame
int ff_thread_can_start_frame(AVCodecContext *avctx)
Definition: utils.c:957
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:957
AV_CODEC_ID_FASTAUDIO
@ AV_CODEC_ID_FASTAUDIO
Definition: codec_id.h:532
AV_CODEC_ID_RA_144
@ AV_CODEC_ID_RA_144
Definition: codec_id.h:423
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:330
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:344
AV_CODEC_ID_AMR_NB
@ AV_CODEC_ID_AMR_NB
Definition: codec_id.h:419
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:127
AV_CODEC_ID_SOL_DPCM
@ AV_CODEC_ID_SOL_DPCM
Definition: codec_id.h:430
AV_CODEC_ID_WMAV2
@ AV_CODEC_ID_WMAV2
Definition: codec_id.h:446
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:2840
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:121
FFMAX
#define FFMAX(a, b)
Definition: macros.h:47
AV_CODEC_ID_IMC
@ AV_CODEC_ID_IMC
Definition: codec_id.h:465
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:471
AVChannelLayout::nb_channels
int nb_channels
Number of channels in this layout.
Definition: channel_layout.h:311
AV_CODEC_ID_ADPCM_XMD
@ AV_CODEC_ID_ADPCM_XMD
Definition: codec_id.h:416
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:420
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:514
AV_CODEC_ID_ADPCM_CT
@ AV_CODEC_ID_ADPCM_CT
Definition: codec_id.h:377
AVCodecContext::framerate
AVRational framerate
Definition: avcodec.h:1768
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:364
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:2092
AV_CODEC_ID_XAN_DPCM
@ AV_CODEC_ID_XAN_DPCM
Definition: codec_id.h:429
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:982
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:916
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:439
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:493
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:469
FF_CODEC_CB_TYPE_DECODE
@ FF_CODEC_CB_TYPE_DECODE
Definition: codec_internal.h:109
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:579
AV_CODEC_ID_SIPR
@ AV_CODEC_ID_SIPR
Definition: codec_id.h:479
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:445
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:447
AV_CODEC_ID_ATRAC3P
@ AV_CODEC_ID_ATRAC3P
Definition: codec_id.h:477
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:460
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:3306
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_WADY_DPCM
@ AV_CODEC_ID_WADY_DPCM
Definition: codec_id.h:434
AV_CODEC_ID_MP2
@ AV_CODEC_ID_MP2
Definition: codec_id.h:438
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:1584
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:526
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:486
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:370
FF_CODEC_CB_TYPE_ENCODE
@ FF_CODEC_CB_TYPE_ENCODE
Definition: codec_internal.h:118
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:921
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:433
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:938
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:953
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
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:441
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:892
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:873
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:519
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:428
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:1892
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:112
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:481
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:962
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:427
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:3318
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:405
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:456
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:962
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:554
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:462
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:486
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:1461
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:257
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:512
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:434
AV_NUM_DATA_POINTERS
#define AV_NUM_DATA_POINTERS
Definition: frame.h:331
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:833
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:1029
AVFrameSideData::data
uint8_t * data
Definition: frame.h:238
ffcodec
static const av_always_inline FFCodec * ffcodec(const AVCodec *codec)
Definition: codec_internal.h:325
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
align
static const uint8_t *BS_FUNC() align(BSCTX *bc)
Skip bits to a byte boundary.
Definition: bitstream_template.h:411
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:926
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:261
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:1154
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:438
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:1477
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:136
state
static struct @346 state
AV_CODEC_ID_ATRAC1
@ AV_CODEC_ID_ATRAC1
Definition: codec_id.h:484
AV_CODEC_ID_RA_288
@ AV_CODEC_ID_RA_288
Definition: codec_id.h:424
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:945
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:458
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:532
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:509
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:1015
AV_CODEC_ID_DSD_LSBF_PLANAR
@ AV_CODEC_ID_DSD_LSBF_PLANAR
Definition: codec_id.h:513
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:859
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:815
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:604
AVCodecContext::pix_fmt
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:641
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:1133
avcodec.h
AV_CODEC_ID_IAC
@ AV_CODEC_ID_IAC
Definition: codec_id.h:496
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:468
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:1085
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:599
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_CODEC_ID_CBD2_DPCM
@ AV_CODEC_ID_CBD2_DPCM
Definition: codec_id.h:435
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:431
ff_slice_thread_allocz_entries
int ff_slice_thread_allocz_entries(AVCodecContext *avctx, int count)
Definition: utils.c:967
ThreadFrame
Definition: threadframe.h:27
AV_CODEC_ID_ADPCM_G726LE
@ AV_CODEC_ID_ADPCM_G726LE
Definition: codec_id.h:400
channel_layout.h
AV_CODEC_ID_BINKVIDEO
@ AV_CODEC_ID_BINKVIDEO
Definition: codec_id.h:187
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:115
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:143
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:880
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:459
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:557
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:1060
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:431
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:236
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:1069
AVCodecContext::codec_tag
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
Definition: avcodec.h:456
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:497
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:604
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:534
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:3650
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:523
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:466
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:949
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:538
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:480
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:852
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:801
AV_CODEC_ID_APTX_HD
@ AV_CODEC_ID_APTX_HD
Definition: codec_id.h:524
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:471
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