FFmpeg
dump.c
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1 /*
2  * Various pretty-printing functions for use within FFmpeg
3  * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include <stdio.h>
23 #include <stdint.h>
24 
25 #include "libavutil/avstring.h"
27 #include "libavutil/display.h"
28 #include "libavutil/iamf.h"
29 #include "libavutil/intreadwrite.h"
30 #include "libavutil/log.h"
33 #include "libavutil/dovi_meta.h"
34 #include "libavutil/mathematics.h"
35 #include "libavutil/mem.h"
36 #include "libavutil/opt.h"
37 #include "libavutil/replaygain.h"
38 #include "libavutil/spherical.h"
39 #include "libavutil/stereo3d.h"
40 #include "libavutil/timecode.h"
41 
42 #include "libavcodec/avcodec.h"
43 
44 #include "avformat.h"
45 #include "internal.h"
46 
47 #define HEXDUMP_PRINT(...) \
48  do { \
49  if (!f) \
50  av_log(avcl, level, __VA_ARGS__); \
51  else \
52  fprintf(f, __VA_ARGS__); \
53  } while (0)
54 
55 static void hex_dump_internal(void *avcl, FILE *f, int level,
56  const uint8_t *buf, int size)
57 {
58  int len, i, j, c;
59 
60  for (i = 0; i < size; i += 16) {
61  len = size - i;
62  if (len > 16)
63  len = 16;
64  HEXDUMP_PRINT("%08x ", i);
65  for (j = 0; j < 16; j++) {
66  if (j < len)
67  HEXDUMP_PRINT(" %02x", buf[i + j]);
68  else
69  HEXDUMP_PRINT(" ");
70  }
71  HEXDUMP_PRINT(" ");
72  for (j = 0; j < len; j++) {
73  c = buf[i + j];
74  if (c < ' ' || c > '~')
75  c = '.';
76  HEXDUMP_PRINT("%c", c);
77  }
78  HEXDUMP_PRINT("\n");
79  }
80 }
81 
82 void av_hex_dump(FILE *f, const uint8_t *buf, int size)
83 {
84  hex_dump_internal(NULL, f, 0, buf, size);
85 }
86 
87 void av_hex_dump_log(void *avcl, int level, const uint8_t *buf, int size)
88 {
89  hex_dump_internal(avcl, NULL, level, buf, size);
90 }
91 
92 static void pkt_dump_internal(void *avcl, FILE *f, int level, const AVPacket *pkt,
93  int dump_payload, AVRational time_base)
94 {
95  HEXDUMP_PRINT("stream #%d:\n", pkt->stream_index);
96  HEXDUMP_PRINT(" keyframe=%d\n", (pkt->flags & AV_PKT_FLAG_KEY) != 0);
97  HEXDUMP_PRINT(" duration=%0.3f\n", pkt->duration * av_q2d(time_base));
98  /* DTS is _always_ valid after av_read_frame() */
99  HEXDUMP_PRINT(" dts=");
100  if (pkt->dts == AV_NOPTS_VALUE)
101  HEXDUMP_PRINT("N/A");
102  else
103  HEXDUMP_PRINT("%0.3f", pkt->dts * av_q2d(time_base));
104  /* PTS may not be known if B-frames are present. */
105  HEXDUMP_PRINT(" pts=");
106  if (pkt->pts == AV_NOPTS_VALUE)
107  HEXDUMP_PRINT("N/A");
108  else
109  HEXDUMP_PRINT("%0.3f", pkt->pts * av_q2d(time_base));
110  HEXDUMP_PRINT("\n");
111  HEXDUMP_PRINT(" size=%d\n", pkt->size);
112  if (dump_payload)
113  hex_dump_internal(avcl, f, level, pkt->data, pkt->size);
114 }
115 
116 void av_pkt_dump2(FILE *f, const AVPacket *pkt, int dump_payload, const AVStream *st)
117 {
118  pkt_dump_internal(NULL, f, 0, pkt, dump_payload, st->time_base);
119 }
120 
121 void av_pkt_dump_log2(void *avcl, int level, const AVPacket *pkt, int dump_payload,
122  const AVStream *st)
123 {
124  pkt_dump_internal(avcl, NULL, level, pkt, dump_payload, st->time_base);
125 }
126 
127 
128 static void print_fps(double d, const char *postfix, int log_level)
129 {
130  uint64_t v = lrintf(d * 100);
131  if (!v)
132  av_log(NULL, log_level, "%1.4f %s", d, postfix);
133  else if (v % 100)
134  av_log(NULL, log_level, "%3.2f %s", d, postfix);
135  else if (v % (100 * 1000))
136  av_log(NULL, log_level, "%1.0f %s", d, postfix);
137  else
138  av_log(NULL, log_level, "%1.0fk %s", d / 1000, postfix);
139 }
140 
141 static void dump_dictionary(void *ctx, const AVDictionary *m,
142  const char *name, const char *indent,
143  int log_level)
144 {
145  const AVDictionaryEntry *tag = NULL;
146 
147  if (!m)
148  return;
149 
150  av_log(ctx, log_level, "%s%s:\n", indent, name);
151  while ((tag = av_dict_iterate(m, tag)))
152  if (strcmp("language", tag->key)) {
153  const char *p = tag->value;
154  av_log(ctx, log_level,
155  "%s %-16s: ", indent, tag->key);
156  while (*p) {
157  size_t len = strcspn(p, "\x8\xa\xb\xc\xd");
158  av_log(ctx, log_level, "%.*s", (int)(FFMIN(255, len)), p);
159  p += len;
160  if (*p == 0xd) av_log(ctx, log_level, " ");
161  if (*p == 0xa) av_log(ctx, log_level, "\n%s %-16s: ", indent, "");
162  if (*p) p++;
163  }
164  av_log(ctx, log_level, "\n");
165  }
166 }
167 
168 static void dump_metadata(void *ctx, const AVDictionary *m, const char *indent,
169  int log_level)
170 {
171  if (m && !(av_dict_count(m) == 1 && av_dict_get(m, "language", NULL, 0)))
172  dump_dictionary(ctx, m, "Metadata", indent, log_level);
173 }
174 
175 /* param change side data*/
176 static void dump_paramchange(void *ctx, const AVPacketSideData *sd, int log_level)
177 {
178  int size = sd->size;
179  const uint8_t *data = sd->data;
180  uint32_t flags, sample_rate, width, height;
181 
182  if (!data || sd->size < 4)
183  goto fail;
184 
185  flags = AV_RL32(data);
186  data += 4;
187  size -= 4;
188 
190  if (size < 4)
191  goto fail;
193  data += 4;
194  size -= 4;
195  av_log(ctx, log_level, "sample_rate %"PRIu32", ", sample_rate);
196  }
198  if (size < 8)
199  goto fail;
200  width = AV_RL32(data);
201  data += 4;
202  size -= 4;
203  height = AV_RL32(data);
204  data += 4;
205  size -= 4;
206  av_log(ctx, log_level, "width %"PRIu32" height %"PRIu32, width, height);
207  }
208 
209  return;
210 fail:
211  av_log(ctx, AV_LOG_ERROR, "unknown param\n");
212 }
213 
214 /* replaygain side data*/
215 static void print_gain(void *ctx, const char *str, int32_t gain, int log_level)
216 {
217  av_log(ctx, log_level, "%s - ", str);
218  if (gain == INT32_MIN)
219  av_log(ctx, log_level, "unknown");
220  else
221  av_log(ctx, log_level, "%f", gain / 100000.0f);
222  av_log(ctx, log_level, ", ");
223 }
224 
225 static void print_peak(void *ctx, const char *str, uint32_t peak, int log_level)
226 {
227  av_log(ctx, log_level, "%s - ", str);
228  if (!peak)
229  av_log(ctx, log_level, "unknown");
230  else
231  av_log(ctx, log_level, "%f", (float) peak / UINT32_MAX);
232  av_log(ctx, log_level, ", ");
233 }
234 
235 static void dump_replaygain(void *ctx, const AVPacketSideData *sd, int log_level)
236 {
237  const AVReplayGain *rg;
238 
239  if (sd->size < sizeof(*rg)) {
240  av_log(ctx, AV_LOG_ERROR, "invalid data\n");
241  return;
242  }
243  rg = (const AVReplayGain *)sd->data;
244 
245  print_gain(ctx, "track gain", rg->track_gain, log_level);
246  print_peak(ctx, "track peak", rg->track_peak, log_level);
247  print_gain(ctx, "album gain", rg->album_gain, log_level);
248  print_peak(ctx, "album peak", rg->album_peak, log_level);
249 }
250 
251 static void dump_stereo3d(void *ctx, const AVPacketSideData *sd, int log_level)
252 {
253  const AVStereo3D *stereo;
254 
255  if (sd->size < sizeof(*stereo)) {
256  av_log(ctx, AV_LOG_ERROR, "invalid data\n");
257  return;
258  }
259 
260  stereo = (const AVStereo3D *)sd->data;
261 
262  av_log(ctx, log_level, "%s, view: %s, primary eye: %s",
265  if (stereo->baseline)
266  av_log(ctx, log_level, ", baseline: %"PRIu32"", stereo->baseline);
268  av_log(ctx, log_level, ", horizontal_disparity_adjustment: %0.4f",
271  av_log(ctx, log_level, ", horizontal_field_of_view: %0.3f", av_q2d(stereo->horizontal_field_of_view));
272 
273  if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
274  av_log(ctx, log_level, " (inverted)");
275 }
276 
277 static void dump_audioservicetype(void *ctx, const AVPacketSideData *sd, int log_level)
278 {
279  const enum AVAudioServiceType *ast = (const enum AVAudioServiceType *)sd->data;
280 
281  if (sd->size < sizeof(*ast)) {
282  av_log(ctx, AV_LOG_ERROR, "invalid data\n");
283  return;
284  }
285 
286  switch (*ast) {
288  av_log(ctx, log_level, "main");
289  break;
291  av_log(ctx, log_level, "effects");
292  break;
294  av_log(ctx, log_level, "visually impaired");
295  break;
297  av_log(ctx, log_level, "hearing impaired");
298  break;
300  av_log(ctx, log_level, "dialogue");
301  break;
303  av_log(ctx, log_level, "commentary");
304  break;
306  av_log(ctx, log_level, "emergency");
307  break;
309  av_log(ctx, log_level, "voice over");
310  break;
312  av_log(ctx, log_level, "karaoke");
313  break;
314  default:
315  av_log(ctx, AV_LOG_WARNING, "unknown");
316  break;
317  }
318 }
319 
320 static void dump_cpb(void *ctx, const AVPacketSideData *sd, int log_level)
321 {
322  const AVCPBProperties *cpb = (const AVCPBProperties *)sd->data;
323 
324  if (sd->size < sizeof(*cpb)) {
325  av_log(ctx, AV_LOG_ERROR, "invalid data\n");
326  return;
327  }
328 
329  av_log(ctx, log_level,
330  "bitrate max/min/avg: %"PRId64"/%"PRId64"/%"PRId64" buffer size: %"PRId64" ",
331  cpb->max_bitrate, cpb->min_bitrate, cpb->avg_bitrate,
332  cpb->buffer_size);
333  if (cpb->vbv_delay == UINT64_MAX)
334  av_log(ctx, log_level, "vbv_delay: N/A");
335  else
336  av_log(ctx, log_level, "vbv_delay: %"PRIu64"", cpb->vbv_delay);
337 }
338 
340  int log_level)
341 {
342  const AVMasteringDisplayMetadata *metadata =
343  (const AVMasteringDisplayMetadata *)sd->data;
344  av_log(ctx, log_level, "Mastering Display Metadata, "
345  "has_primaries:%d has_luminance:%d "
346  "r(%5.4f,%5.4f) g(%5.4f,%5.4f) b(%5.4f %5.4f) wp(%5.4f, %5.4f) "
347  "min_luminance=%f, max_luminance=%f",
348  metadata->has_primaries, metadata->has_luminance,
349  av_q2d(metadata->display_primaries[0][0]),
350  av_q2d(metadata->display_primaries[0][1]),
351  av_q2d(metadata->display_primaries[1][0]),
352  av_q2d(metadata->display_primaries[1][1]),
353  av_q2d(metadata->display_primaries[2][0]),
354  av_q2d(metadata->display_primaries[2][1]),
355  av_q2d(metadata->white_point[0]), av_q2d(metadata->white_point[1]),
356  av_q2d(metadata->min_luminance), av_q2d(metadata->max_luminance));
357 }
358 
359 static void dump_content_light_metadata(void *ctx, const AVPacketSideData *sd,
360  int log_level)
361 {
362  const AVContentLightMetadata *metadata =
363  (const AVContentLightMetadata *)sd->data;
364  av_log(ctx, log_level, "Content Light Level Metadata, "
365  "MaxCLL=%d, MaxFALL=%d",
366  metadata->MaxCLL, metadata->MaxFALL);
367 }
368 
370 {
371  const AVAmbientViewingEnvironment *ambient =
372  (const AVAmbientViewingEnvironment *)sd->data;
373  av_log(ctx, AV_LOG_INFO, "Ambient Viewing Environment, "
374  "ambient_illuminance=%f, ambient_light_x=%f, ambient_light_y=%f",
375  av_q2d(ambient->ambient_illuminance),
376  av_q2d(ambient->ambient_light_x),
377  av_q2d(ambient->ambient_light_y));
378 }
379 
380 static void dump_spherical(void *ctx, const AVCodecParameters *par,
381  const AVPacketSideData *sd, int log_level)
382 {
383  const AVSphericalMapping *spherical = (const AVSphericalMapping *)sd->data;
384  double yaw, pitch, roll;
385 
386  if (sd->size < sizeof(*spherical)) {
387  av_log(ctx, AV_LOG_ERROR, "invalid data\n");
388  return;
389  }
390 
391  av_log(ctx, log_level, "%s ", av_spherical_projection_name(spherical->projection));
392 
393  if (spherical->yaw || spherical->pitch || spherical->roll) {
394  yaw = ((double)spherical->yaw) / (1 << 16);
395  pitch = ((double)spherical->pitch) / (1 << 16);
396  roll = ((double)spherical->roll) / (1 << 16);
397  av_log(ctx, log_level, "(%f/%f/%f) ", yaw, pitch, roll);
398  }
399 
400  if (spherical->projection == AV_SPHERICAL_EQUIRECTANGULAR_TILE) {
401  size_t l, t, r, b;
402  av_spherical_tile_bounds(spherical, par->width, par->height,
403  &l, &t, &r, &b);
404  av_log(ctx, log_level,
406  l, t, r, b);
407  } else if (spherical->projection == AV_SPHERICAL_CUBEMAP) {
408  av_log(ctx, log_level, "[pad %"PRIu32"] ", spherical->padding);
409  }
410 }
411 
412 static void dump_dovi_conf(void *ctx, const AVPacketSideData *sd,
413  int log_level)
414 {
417 
418  av_log(ctx, log_level, "version: %d.%d, profile: %d, level: %d, "
419  "rpu flag: %d, el flag: %d, bl flag: %d, compatibility id: %d",
420  dovi->dv_version_major, dovi->dv_version_minor,
421  dovi->dv_profile, dovi->dv_level,
422  dovi->rpu_present_flag,
423  dovi->el_present_flag,
424  dovi->bl_present_flag,
426 }
427 
428 static void dump_s12m_timecode(void *ctx, const AVStream *st, const AVPacketSideData *sd,
429  int log_level)
430 {
431  const uint32_t *tc = (const uint32_t *)sd->data;
432 
433  if ((sd->size != sizeof(uint32_t) * 4) || (tc[0] > 3)) {
434  av_log(ctx, AV_LOG_ERROR, "invalid data\n");
435  return;
436  }
437 
438  for (int j = 1; j <= tc[0]; j++) {
439  char tcbuf[AV_TIMECODE_STR_SIZE];
440  av_timecode_make_smpte_tc_string2(tcbuf, st->avg_frame_rate, tc[j], 0, 0);
441  av_log(ctx, log_level, "timecode - %s%s", tcbuf, j != tc[0] ? ", " : "");
442  }
443 }
444 
445 static void dump_cropping(void *ctx, const AVPacketSideData *sd)
446 {
447  uint32_t top, bottom, left, right;
448 
449  if (sd->size < sizeof(uint32_t) * 4) {
450  av_log(ctx, AV_LOG_ERROR, "invalid data\n");
451  return;
452  }
453 
454  top = AV_RL32(sd->data + 0);
455  bottom = AV_RL32(sd->data + 4);
456  left = AV_RL32(sd->data + 8);
457  right = AV_RL32(sd->data + 12);
458 
459  av_log(ctx, AV_LOG_INFO, "%d/%d/%d/%d", left, right, top, bottom);
460 }
461 
462 static void dump_sidedata(void *ctx, const AVStream *st, const char *indent,
463  int log_level)
464 {
465  int i;
466 
467  if (st->codecpar->nb_coded_side_data)
468  av_log(ctx, log_level, "%sSide data:\n", indent);
469 
470  for (i = 0; i < st->codecpar->nb_coded_side_data; i++) {
471  const AVPacketSideData *sd = &st->codecpar->coded_side_data[i];
472  av_log(ctx, log_level, "%s ", indent);
473 
474  switch (sd->type) {
475  case AV_PKT_DATA_PALETTE:
476  av_log(ctx, log_level, "palette");
477  break;
479  av_log(ctx, log_level, "new extradata");
480  break;
482  av_log(ctx, log_level, "paramchange: ");
483  dump_paramchange(ctx, sd, log_level);
484  break;
486  av_log(ctx, log_level, "H.263 macroblock info");
487  break;
489  av_log(ctx, log_level, "replaygain: ");
490  dump_replaygain(ctx, sd, log_level);
491  break;
493  av_log(ctx, log_level, "displaymatrix: rotation of %.2f degrees",
494  av_display_rotation_get((const int32_t *)sd->data));
495  break;
497  av_log(ctx, log_level, "stereo3d: ");
498  dump_stereo3d(ctx, sd, log_level);
499  break;
501  av_log(ctx, log_level, "audio service type: ");
502  dump_audioservicetype(ctx, sd, log_level);
503  break;
505  av_log(ctx, log_level, "quality factor: %"PRId32", pict_type: %c",
506  AV_RL32(sd->data), av_get_picture_type_char(sd->data[4]));
507  break;
509  av_log(ctx, log_level, "cpb: ");
510  dump_cpb(ctx, sd, log_level);
511  break;
513  dump_mastering_display_metadata(ctx, sd, log_level);
514  break;
516  av_log(ctx, log_level, "spherical: ");
517  dump_spherical(ctx, st->codecpar, sd, log_level);
518  break;
520  dump_content_light_metadata(ctx, sd, log_level);
521  break;
523  av_log(ctx, log_level, "ICC Profile");
524  break;
526  av_log(ctx, log_level, "DOVI configuration record: ");
527  dump_dovi_conf(ctx, sd, log_level);
528  break;
530  av_log(ctx, log_level, "SMPTE ST 12-1:2014: ");
531  dump_s12m_timecode(ctx, st, sd, log_level);
532  break;
535  break;
537  av_log(ctx, AV_LOG_INFO, "Frame cropping: ");
538  dump_cropping(ctx, sd);
539  break;
540  default:
541  av_log(ctx, log_level, "unknown side data type %d "
542  "(%"SIZE_SPECIFIER" bytes)", sd->type, sd->size);
543  break;
544  }
545 
546  av_log(ctx, log_level, "\n");
547  }
548 }
549 
550 static void dump_disposition(int disposition, int log_level)
551 {
552  if (disposition & AV_DISPOSITION_DEFAULT)
553  av_log(NULL, log_level, " (default)");
554  if (disposition & AV_DISPOSITION_DUB)
555  av_log(NULL, log_level, " (dub)");
556  if (disposition & AV_DISPOSITION_ORIGINAL)
557  av_log(NULL, log_level, " (original)");
558  if (disposition & AV_DISPOSITION_COMMENT)
559  av_log(NULL, log_level, " (comment)");
560  if (disposition & AV_DISPOSITION_LYRICS)
561  av_log(NULL, log_level, " (lyrics)");
562  if (disposition & AV_DISPOSITION_KARAOKE)
563  av_log(NULL, log_level, " (karaoke)");
564  if (disposition & AV_DISPOSITION_FORCED)
565  av_log(NULL, log_level, " (forced)");
566  if (disposition & AV_DISPOSITION_HEARING_IMPAIRED)
567  av_log(NULL, log_level, " (hearing impaired)");
568  if (disposition & AV_DISPOSITION_VISUAL_IMPAIRED)
569  av_log(NULL, log_level, " (visual impaired)");
570  if (disposition & AV_DISPOSITION_CLEAN_EFFECTS)
571  av_log(NULL, log_level, " (clean effects)");
572  if (disposition & AV_DISPOSITION_ATTACHED_PIC)
573  av_log(NULL, log_level, " (attached pic)");
574  if (disposition & AV_DISPOSITION_TIMED_THUMBNAILS)
575  av_log(NULL, log_level, " (timed thumbnails)");
576  if (disposition & AV_DISPOSITION_CAPTIONS)
577  av_log(NULL, log_level, " (captions)");
578  if (disposition & AV_DISPOSITION_DESCRIPTIONS)
579  av_log(NULL, log_level, " (descriptions)");
580  if (disposition & AV_DISPOSITION_METADATA)
581  av_log(NULL, log_level, " (metadata)");
582  if (disposition & AV_DISPOSITION_DEPENDENT)
583  av_log(NULL, log_level, " (dependent)");
584  if (disposition & AV_DISPOSITION_STILL_IMAGE)
585  av_log(NULL, log_level, " (still image)");
586  if (disposition & AV_DISPOSITION_NON_DIEGETIC)
587  av_log(NULL, log_level, " (non-diegetic)");
588  if (disposition & AV_DISPOSITION_MULTILAYER)
589  av_log(NULL, log_level, " (multilayer)");
590 }
591 
592 /* "user interface" functions */
593 static void dump_stream_format(const AVFormatContext *ic, int i,
594  int group_index, int index, int is_output,
595  int log_level)
596 {
597  char buf[256];
598  int flags = (is_output ? ic->oformat->flags : ic->iformat->flags);
599  const AVStream *st = ic->streams[i];
600  const FFStream *const sti = cffstream(st);
601  const AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL, 0);
602  const char *separator = ic->dump_separator;
603  const char *group_indent = group_index >= 0 ? " " : "";
604  const char *extra_indent = group_index >= 0 ? " " : " ";
605  AVCodecContext *avctx;
606  int ret;
607 
608  avctx = avcodec_alloc_context3(NULL);
609  if (!avctx)
610  return;
611 
613  if (ret < 0) {
614  avcodec_free_context(&avctx);
615  return;
616  }
617 
618  // Fields which are missing from AVCodecParameters need to be taken from the AVCodecContext
619  if (sti->avctx) {
620  avctx->properties = sti->avctx->properties;
621  avctx->codec = sti->avctx->codec;
622  avctx->qmin = sti->avctx->qmin;
623  avctx->qmax = sti->avctx->qmax;
624  avctx->coded_width = sti->avctx->coded_width;
625  avctx->coded_height = sti->avctx->coded_height;
626  }
627 
628  if (separator)
629  av_opt_set(avctx, "dump_separator", separator, 0);
630  avcodec_string(buf, sizeof(buf), avctx, is_output);
631  avcodec_free_context(&avctx);
632 
633  av_log(NULL, log_level, "%s Stream #%d", group_indent, index);
634  av_log(NULL, log_level, ":%d", i);
635 
636  /* the pid is an important information, so we display it */
637  /* XXX: add a generic system */
638  if (flags & AVFMT_SHOW_IDS)
639  av_log(NULL, log_level, "[0x%x]", st->id);
640  if (lang)
641  av_log(NULL, log_level, "(%s)", lang->value);
642  av_log(NULL, AV_LOG_DEBUG, ", %d, %d/%d", sti->codec_info_nb_frames,
643  st->time_base.num, st->time_base.den);
644  av_log(NULL, log_level, ": %s", buf);
645 
646  if (st->sample_aspect_ratio.num &&
648  AVRational display_aspect_ratio;
649  av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
652  1024 * 1024);
653  av_log(NULL, log_level, ", SAR %d:%d DAR %d:%d",
655  display_aspect_ratio.num, display_aspect_ratio.den);
656  }
657 
658  if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
659  int fps = st->avg_frame_rate.den && st->avg_frame_rate.num;
660  int tbr = st->r_frame_rate.den && st->r_frame_rate.num;
661  int tbn = st->time_base.den && st->time_base.num;
662 
663  if (fps || tbr || tbn)
664  av_log(NULL, log_level, "%s", separator);
665 
666  if (fps)
667  print_fps(av_q2d(st->avg_frame_rate), tbr || tbn ? "fps, " : "fps", log_level);
668  if (tbr)
669  print_fps(av_q2d(st->r_frame_rate), tbn ? "tbr, " : "tbr", log_level);
670  if (tbn)
671  print_fps(1 / av_q2d(st->time_base), "tbn", log_level);
672  }
673 
674  dump_disposition(st->disposition, log_level);
675  av_log(NULL, log_level, "\n");
676 
677  dump_metadata(NULL, st->metadata, extra_indent, log_level);
678 
679  dump_sidedata(NULL, st, extra_indent, log_level);
680 }
681 
682 static void dump_stream_group(const AVFormatContext *ic, uint8_t *printed,
683  int i, int index, int is_output)
684 {
685  const AVStreamGroup *stg = ic->stream_groups[i];
686  int flags = (is_output ? ic->oformat->flags : ic->iformat->flags);
687  char buf[512];
688  int ret;
689 
690  av_log(NULL, AV_LOG_INFO, " Stream group #%d:%d", index, i);
691  if (flags & AVFMT_SHOW_IDS)
692  av_log(NULL, AV_LOG_INFO, "[0x%"PRIx64"]", stg->id);
693  av_log(NULL, AV_LOG_INFO, ":");
694 
695  switch (stg->type) {
697  const AVIAMFAudioElement *audio_element = stg->params.iamf_audio_element;
698  av_log(NULL, AV_LOG_INFO, " IAMF Audio Element:");
700  av_log(NULL, AV_LOG_INFO, "\n");
701  dump_metadata(NULL, stg->metadata, " ", AV_LOG_INFO);
702  for (int j = 0; j < audio_element->nb_layers; j++) {
703  const AVIAMFLayer *layer = audio_element->layers[j];
704  int channel_count = layer->ch_layout.nb_channels;
705  av_log(NULL, AV_LOG_INFO, " Layer %d:", j);
706  ret = av_channel_layout_describe(&layer->ch_layout, buf, sizeof(buf));
707  if (ret >= 0)
708  av_log(NULL, AV_LOG_INFO, " %s", buf);
709  av_log(NULL, AV_LOG_INFO, "\n");
710  for (int k = 0; channel_count > 0 && k < stg->nb_streams; k++) {
711  AVStream *st = stg->streams[k];
712  dump_stream_format(ic, st->index, i, index, is_output, AV_LOG_VERBOSE);
713  printed[st->index] = 1;
714  channel_count -= st->codecpar->ch_layout.nb_channels;
715  }
716  }
717  break;
718  }
720  const AVIAMFMixPresentation *mix_presentation = stg->params.iamf_mix_presentation;
721  av_log(NULL, AV_LOG_INFO, " IAMF Mix Presentation:");
723  av_log(NULL, AV_LOG_INFO, "\n");
724  dump_metadata(NULL, stg->metadata, " ", AV_LOG_INFO);
725  dump_dictionary(NULL, mix_presentation->annotations, "Annotations", " ", AV_LOG_INFO);
726  for (int j = 0; j < mix_presentation->nb_submixes; j++) {
727  AVIAMFSubmix *sub_mix = mix_presentation->submixes[j];
728  av_log(NULL, AV_LOG_INFO, " Submix %d:\n", j);
729  for (int k = 0; k < sub_mix->nb_elements; k++) {
730  const AVIAMFSubmixElement *submix_element = sub_mix->elements[k];
731  const AVStreamGroup *audio_element = NULL;
732  for (int l = 0; l < ic->nb_stream_groups; l++)
734  ic->stream_groups[l]->id == submix_element->audio_element_id) {
735  audio_element = ic->stream_groups[l];
736  break;
737  }
738  if (audio_element) {
739  av_log(NULL, AV_LOG_INFO, " IAMF Audio Element #%d:%d",
740  index, audio_element->index);
741  if (flags & AVFMT_SHOW_IDS)
742  av_log(NULL, AV_LOG_INFO, "[0x%"PRIx64"]", audio_element->id);
743  av_log(NULL, AV_LOG_INFO, "\n");
744  dump_dictionary(NULL, submix_element->annotations, "Annotations", " ", AV_LOG_INFO);
745  }
746  }
747  for (int k = 0; k < sub_mix->nb_layouts; k++) {
748  const AVIAMFSubmixLayout *submix_layout = sub_mix->layouts[k];
749  av_log(NULL, AV_LOG_INFO, " Layout #%d:", k);
750  if (submix_layout->layout_type == 2) {
751  ret = av_channel_layout_describe(&submix_layout->sound_system, buf, sizeof(buf));
752  if (ret >= 0)
753  av_log(NULL, AV_LOG_INFO, " %s", buf);
754  } else if (submix_layout->layout_type == 3)
755  av_log(NULL, AV_LOG_INFO, " Binaural");
756  av_log(NULL, AV_LOG_INFO, "\n");
757  }
758  }
759  break;
760  }
762  const AVStreamGroupTileGrid *tile_grid = stg->params.tile_grid;
764  const char *ptr = NULL;
765  av_log(NULL, AV_LOG_INFO, " Tile Grid:");
766  if (avctx && stg->nb_streams && !avcodec_parameters_to_context(avctx, stg->streams[0]->codecpar)) {
767  avctx->width = tile_grid->width;
768  avctx->height = tile_grid->height;
769  avctx->coded_width = tile_grid->coded_width;
770  avctx->coded_height = tile_grid->coded_height;
771  if (ic->dump_separator)
772  av_opt_set(avctx, "dump_separator", ic->dump_separator, 0);
773  buf[0] = 0;
774  avcodec_string(buf, sizeof(buf), avctx, is_output);
775  ptr = av_stristr(buf, " ");
776  }
777  avcodec_free_context(&avctx);
778  if (ptr)
779  av_log(NULL, AV_LOG_INFO, "%s", ptr);
781  av_log(NULL, AV_LOG_INFO, "\n");
782  dump_metadata(NULL, stg->metadata, " ", AV_LOG_INFO);
783  for (int i = 0; i < stg->nb_streams; i++) {
784  const AVStream *st = stg->streams[i];
785  dump_stream_format(ic, st->index, i, index, is_output, AV_LOG_VERBOSE);
786  printed[st->index] = 1;
787  }
788  break;
789  }
790  default:
791  break;
792  }
793 }
794 
796  const char *url, int is_output)
797 {
798  int i;
799  uint8_t *printed = ic->nb_streams ? av_mallocz(ic->nb_streams) : NULL;
800  if (ic->nb_streams && !printed)
801  return;
802 
803  av_log(NULL, AV_LOG_INFO, "%s #%d, %s, %s '%s':\n",
804  is_output ? "Output" : "Input",
805  index,
806  is_output ? ic->oformat->name : ic->iformat->name,
807  is_output ? "to" : "from", url);
809 
810  if (!is_output) {
811  av_log(NULL, AV_LOG_INFO, " Duration: ");
812  if (ic->duration != AV_NOPTS_VALUE) {
813  int64_t hours, mins, secs, us;
814  int64_t duration = ic->duration + (ic->duration <= INT64_MAX - 5000 ? 5000 : 0);
815  secs = duration / AV_TIME_BASE;
817  mins = secs / 60;
818  secs %= 60;
819  hours = mins / 60;
820  mins %= 60;
821  av_log(NULL, AV_LOG_INFO, "%02"PRId64":%02"PRId64":%02"PRId64".%02"PRId64"", hours, mins, secs,
822  (100 * us) / AV_TIME_BASE);
823  } else {
824  av_log(NULL, AV_LOG_INFO, "N/A");
825  }
826  if (ic->start_time != AV_NOPTS_VALUE) {
827  int secs, us;
828  av_log(NULL, AV_LOG_INFO, ", start: ");
829  secs = llabs(ic->start_time / AV_TIME_BASE);
830  us = llabs(ic->start_time % AV_TIME_BASE);
831  av_log(NULL, AV_LOG_INFO, "%s%d.%06d",
832  ic->start_time >= 0 ? "" : "-",
833  secs,
834  (int) av_rescale(us, 1000000, AV_TIME_BASE));
835  }
836  av_log(NULL, AV_LOG_INFO, ", bitrate: ");
837  if (ic->bit_rate)
838  av_log(NULL, AV_LOG_INFO, "%"PRId64" kb/s", ic->bit_rate / 1000);
839  else
840  av_log(NULL, AV_LOG_INFO, "N/A");
841  av_log(NULL, AV_LOG_INFO, "\n");
842  }
843 
844  if (ic->nb_chapters)
845  av_log(NULL, AV_LOG_INFO, " Chapters:\n");
846  for (i = 0; i < ic->nb_chapters; i++) {
847  const AVChapter *ch = ic->chapters[i];
848  av_log(NULL, AV_LOG_INFO, " Chapter #%d:%d: ", index, i);
850  "start %f, ", ch->start * av_q2d(ch->time_base));
852  "end %f\n", ch->end * av_q2d(ch->time_base));
853 
855  }
856 
857  if (ic->nb_programs) {
858  int j, k, total = 0;
859  for (j = 0; j < ic->nb_programs; j++) {
860  const AVProgram *program = ic->programs[j];
861  const AVDictionaryEntry *name = av_dict_get(program->metadata,
862  "name", NULL, 0);
863  av_log(NULL, AV_LOG_INFO, " Program %d %s\n", program->id,
864  name ? name->value : "");
865  dump_metadata(NULL, program->metadata, " ", AV_LOG_INFO);
866  for (k = 0; k < program->nb_stream_indexes; k++) {
867  dump_stream_format(ic, program->stream_index[k],
868  -1, index, is_output, AV_LOG_INFO);
869  printed[program->stream_index[k]] = 1;
870  }
871  total += program->nb_stream_indexes;
872  }
873  if (total < ic->nb_streams)
874  av_log(NULL, AV_LOG_INFO, " No Program\n");
875  }
876 
877  for (i = 0; i < ic->nb_stream_groups; i++)
878  dump_stream_group(ic, printed, i, index, is_output);
879 
880  for (i = 0; i < ic->nb_streams; i++)
881  if (!printed[i])
882  dump_stream_format(ic, i, -1, index, is_output, AV_LOG_INFO);
883 
884  av_free(printed);
885 }
AVMasteringDisplayMetadata::has_primaries
int has_primaries
Flag indicating whether the display primaries (and white point) are set.
Definition: mastering_display_metadata.h:62
iamf.h
AV_PKT_DATA_DISPLAYMATRIX
@ AV_PKT_DATA_DISPLAYMATRIX
This side data contains a 3x3 transformation matrix describing an affine transformation that needs to...
Definition: packet.h:105
av_pkt_dump2
void av_pkt_dump2(FILE *f, const AVPacket *pkt, int dump_payload, const AVStream *st)
Send a nice dump of a packet to the specified file stream.
Definition: dump.c:116
AVIAMFSubmix::elements
AVIAMFSubmixElement ** elements
Array of submix elements.
Definition: iamf.h:552
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:186
AVIAMFAudioElement::nb_layers
unsigned int nb_layers
Number of layers, or channel groups, in the Audio Element.
Definition: iamf.h:359
AV_TIMECODE_STR_SIZE
#define AV_TIMECODE_STR_SIZE
Definition: timecode.h:33
AVMasteringDisplayMetadata::max_luminance
AVRational max_luminance
Max luminance of mastering display (cd/m^2).
Definition: mastering_display_metadata.h:57
AVFormatContext::stream_groups
AVStreamGroup ** stream_groups
A list of all stream groups in the file.
Definition: avformat.h:1347
name
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 vf default minimum maximum flags name is the option name
Definition: writing_filters.txt:88
dump_dovi_conf
static void dump_dovi_conf(void *ctx, const AVPacketSideData *sd, int log_level)
Definition: dump.c:412
level
uint8_t level
Definition: svq3.c:205
AVStreamGroup::id
int64_t id
Group type-specific group ID.
Definition: avformat.h:1114
program
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C program
Definition: undefined.txt:6
AVIAMFSubmix::layouts
AVIAMFSubmixLayout ** layouts
Array of submix layouts.
Definition: iamf.h:567
AV_PKT_DATA_AMBIENT_VIEWING_ENVIRONMENT
@ AV_PKT_DATA_AMBIENT_VIEWING_ENVIRONMENT
Ambient viewing environment metadata, as defined by H.274.
Definition: packet.h:327
AVOutputFormat::name
const char * name
Definition: avformat.h:510
AVChapter::metadata
AVDictionary * metadata
Definition: avformat.h:1223
r
const char * r
Definition: vf_curves.c:127
opt.h
AVCodecParameters::codec_type
enum AVMediaType codec_type
General type of the encoded data.
Definition: codec_par.h:51
AVStreamGroup::tile_grid
struct AVStreamGroupTileGrid * tile_grid
Definition: avformat.h:1130
AVFMT_SHOW_IDS
#define AVFMT_SHOW_IDS
Show format stream IDs numbers.
Definition: avformat.h:477
AVSphericalMapping::projection
enum AVSphericalProjection projection
Projection type.
Definition: spherical.h:98
AV_PKT_DATA_QUALITY_STATS
@ AV_PKT_DATA_QUALITY_STATS
This side data contains quality related information from the encoder.
Definition: packet.h:129
AV_PKT_DATA_FRAME_CROPPING
@ AV_PKT_DATA_FRAME_CROPPING
The number of pixels to discard from the top/bottom/left/right border of the decoded frame to obtain ...
Definition: packet.h:340
AVFormatContext::nb_chapters
unsigned int nb_chapters
Number of chapters in AVChapter array.
Definition: avformat.h:1360
AVCodecParameters
This struct describes the properties of an encoded stream.
Definition: codec_par.h:47
AVAmbientViewingEnvironment
Ambient viewing environment metadata as defined by H.274.
Definition: ambient_viewing_environment.h:36
av_stristr
char * av_stristr(const char *s1, const char *s2)
Locate the first case-independent occurrence in the string haystack of the string needle.
Definition: avstring.c:58
AV_PKT_DATA_NEW_EXTRADATA
@ AV_PKT_DATA_NEW_EXTRADATA
The AV_PKT_DATA_NEW_EXTRADATA is used to notify the codec or the format that the extradata buffer was...
Definition: packet.h:56
AV_DISPOSITION_ATTACHED_PIC
#define AV_DISPOSITION_ATTACHED_PIC
The stream is stored in the file as an attached picture/"cover art" (e.g.
Definition: avformat.h:674
AVIAMFAudioElement::layers
AVIAMFLayer ** layers
Definition: iamf.h:350
av_dict_count
int av_dict_count(const AVDictionary *m)
Get number of entries in dictionary.
Definition: dict.c:39
AV_PKT_DATA_MASTERING_DISPLAY_METADATA
@ AV_PKT_DATA_MASTERING_DISPLAY_METADATA
Mastering display metadata (based on SMPTE-2086:2014).
Definition: packet.h:219
dump_stereo3d
static void dump_stereo3d(void *ctx, const AVPacketSideData *sd, int log_level)
Definition: dump.c:251
AVMasteringDisplayMetadata::display_primaries
AVRational display_primaries[3][2]
CIE 1931 xy chromaticity coords of color primaries (r, g, b order).
Definition: mastering_display_metadata.h:42
AVMasteringDisplayMetadata::has_luminance
int has_luminance
Flag indicating whether the luminance (min_ and max_) have been set.
Definition: mastering_display_metadata.h:67
avcodec_string
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
Definition: avcodec.c:498
hex_dump_internal
static void hex_dump_internal(void *avcl, FILE *f, int level, const uint8_t *buf, int size)
Definition: dump.c:55
int64_t
long long int64_t
Definition: coverity.c:34
AVIAMFMixPresentation::nb_submixes
unsigned int nb_submixes
Number of submixes in the presentation.
Definition: iamf.h:616
AVStreamGroup::disposition
int disposition
Stream group disposition - a combination of AV_DISPOSITION_* flags.
Definition: avformat.h:1171
AV_DISPOSITION_DEFAULT
#define AV_DISPOSITION_DEFAULT
The stream should be chosen by default among other streams of the same type, unless the user has expl...
Definition: avformat.h:621
AVContentLightMetadata::MaxCLL
unsigned MaxCLL
Max content light level (cd/m^2).
Definition: mastering_display_metadata.h:111
AVFormatContext::streams
AVStream ** streams
A list of all streams in the file.
Definition: avformat.h:1328
AVPacketSideData
This structure stores auxiliary information for decoding, presenting, or otherwise processing the cod...
Definition: packet.h:384
AVPacket::data
uint8_t * data
Definition: packet.h:533
av_spherical_tile_bounds
void av_spherical_tile_bounds(const AVSphericalMapping *map, size_t width, size_t height, size_t *left, size_t *top, size_t *right, size_t *bottom)
Convert the bounding fields from an AVSphericalVideo from 0.32 fixed point to pixels.
Definition: spherical.c:40
AVAmbientViewingEnvironment::ambient_light_x
AVRational ambient_light_x
Normalized x chromaticity coordinate of the environmental ambient light in the nominal viewing enviro...
Definition: ambient_viewing_environment.h:47
b
#define b
Definition: input.c:41
AVReplayGain::album_gain
int32_t album_gain
Same as track_gain, but for the whole album.
Definition: replaygain.h:43
AVStream::avg_frame_rate
AVRational avg_frame_rate
Average framerate.
Definition: avformat.h:837
spherical.h
AVChapter::start
int64_t start
Definition: avformat.h:1222
data
const char data[16]
Definition: mxf.c:148
AV_AUDIO_SERVICE_TYPE_VOICE_OVER
@ AV_AUDIO_SERVICE_TYPE_VOICE_OVER
Definition: defs.h:231
AV_PKT_DATA_S12M_TIMECODE
@ AV_PKT_DATA_S12M_TIMECODE
Timecode which conforms to SMPTE ST 12-1:2014.
Definition: packet.h:288
dump_disposition
static void dump_disposition(int disposition, int log_level)
Definition: dump.c:550
AVIAMFSubmixLayout::layout_type
enum AVIAMFSubmixLayoutType layout_type
Definition: iamf.h:504
AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE
@ AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE
Definition: packet.h:610
AV_LOG_VERBOSE
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:196
AVFormatContext::programs
AVProgram ** programs
Definition: avformat.h:1461
AVPacket::duration
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Definition: packet.h:551
AV_SPHERICAL_EQUIRECTANGULAR_TILE
@ AV_SPHERICAL_EQUIRECTANGULAR_TILE
Video represents a portion of a sphere mapped on a flat surface using equirectangular projection.
Definition: spherical.h:68
AVStereo3D::baseline
uint32_t baseline
The distance between the centres of the lenses of the camera system, in micrometers.
Definition: stereo3d.h:228
mathematics.h
AVDictionary
Definition: dict.c:34
cffstream
static const av_always_inline FFStream * cffstream(const AVStream *st)
Definition: internal.h:424
AVCodecContext::qmax
int qmax
maximum quantizer
Definition: avcodec.h:1263
AVChannelLayout::nb_channels
int nb_channels
Number of channels in this layout.
Definition: channel_layout.h:321
replaygain.h
AV_PKT_FLAG_KEY
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: packet.h:588
sample_rate
sample_rate
Definition: ffmpeg_filter.c:424
print_fps
static void print_fps(double d, const char *postfix, int log_level)
Definition: dump.c:128
dump_s12m_timecode
static void dump_s12m_timecode(void *ctx, const AVStream *st, const AVPacketSideData *sd, int log_level)
Definition: dump.c:428
AVContentLightMetadata
Content light level needed by to transmit HDR over HDMI (CTA-861.3).
Definition: mastering_display_metadata.h:107
AV_PKT_DATA_DOVI_CONF
@ AV_PKT_DATA_DOVI_CONF
DOVI configuration ref: dolby-vision-bitstreams-within-the-iso-base-media-file-format-v2....
Definition: packet.h:280
AVStereo3D::horizontal_field_of_view
AVRational horizontal_field_of_view
Horizontal field of view, in degrees.
Definition: stereo3d.h:239
dump_cropping
static void dump_cropping(void *ctx, const AVPacketSideData *sd)
Definition: dump.c:445
print_gain
static void print_gain(void *ctx, const char *str, int32_t gain, int log_level)
Definition: dump.c:215
AVPacketSideData::size
size_t size
Definition: packet.h:386
AV_PKT_DATA_REPLAYGAIN
@ AV_PKT_DATA_REPLAYGAIN
This side data should be associated with an audio stream and contains ReplayGain information in form ...
Definition: packet.h:96
dump_mastering_display_metadata
static void dump_mastering_display_metadata(void *ctx, const AVPacketSideData *sd, int log_level)
Definition: dump.c:339
AVCodecContext::codec
const struct AVCodec * codec
Definition: avcodec.h:454
AV_PKT_DATA_PALETTE
@ AV_PKT_DATA_PALETTE
An AV_PKT_DATA_PALETTE side data packet contains exactly AVPALETTE_SIZE bytes worth of palette.
Definition: packet.h:47
fail
#define fail()
Definition: checkasm.h:186
AVStreamGroupTileGrid
AVStreamGroupTileGrid holds information on how to combine several independent images on a single canv...
Definition: avformat.h:987
timecode.h
AVIAMFSubmixLayout
Submix layout as defined in section 3.7.6 of IAMF.
Definition: iamf.h:501
AVStreamGroupTileGrid::coded_width
int coded_width
Width of the canvas.
Definition: avformat.h:1002
AV_DISPOSITION_STILL_IMAGE
#define AV_DISPOSITION_STILL_IMAGE
The video stream contains still images.
Definition: avformat.h:713
FFStream::avctx
struct AVCodecContext * avctx
The codec context used by avformat_find_stream_info, the parser, etc.
Definition: internal.h:221
AVChapter
Definition: avformat.h:1219
dump_cpb
static void dump_cpb(void *ctx, const AVPacketSideData *sd, int log_level)
Definition: dump.c:320
AV_DISPOSITION_FORCED
#define AV_DISPOSITION_FORCED
Track should be used during playback by default.
Definition: avformat.h:654
dump_content_light_metadata
static void dump_content_light_metadata(void *ctx, const AVPacketSideData *sd, int log_level)
Definition: dump.c:359
AVFormatContext::dump_separator
uint8_t * dump_separator
dump format separator.
Definition: avformat.h:1841
AV_DISPOSITION_TIMED_THUMBNAILS
#define AV_DISPOSITION_TIMED_THUMBNAILS
The stream is sparse, and contains thumbnail images, often corresponding to chapter markers.
Definition: avformat.h:679
AVStreamGroupTileGrid::coded_height
int coded_height
Width of the canvas.
Definition: avformat.h:1008
AVCodecContext::coded_height
int coded_height
Definition: avcodec.h:633
us
#define us(width, name, range_min, range_max, subs,...)
Definition: cbs_h2645.c:263
av_opt_set
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
Definition: opt.c:747
AVAmbientViewingEnvironment::ambient_illuminance
AVRational ambient_illuminance
Environmental illuminance of the ambient viewing environment in lux.
Definition: ambient_viewing_environment.h:40
av_reduce
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
Definition: rational.c:35
AVRational::num
int num
Numerator.
Definition: rational.h:59
av_stereo3d_view_name
const char * av_stereo3d_view_name(unsigned int view)
Provide a human-readable name of a given stereo3d view.
Definition: stereo3d.c:113
AVFormatContext::bit_rate
int64_t bit_rate
Total stream bitrate in bit/s, 0 if not available.
Definition: avformat.h:1402
AV_DISPOSITION_CLEAN_EFFECTS
#define AV_DISPOSITION_CLEAN_EFFECTS
The audio stream contains music and sound effects without voice.
Definition: avformat.h:666
AVIAMFSubmixElement::annotations
AVDictionary * annotations
A dictionary of strings describing the submix in different languages.
Definition: iamf.h:481
dump_ambient_viewing_environment_metadata
static void dump_ambient_viewing_environment_metadata(void *ctx, const AVPacketSideData *sd)
Definition: dump.c:369
AVStreamGroup::params
union AVStreamGroup::@346 params
Group type-specific parameters.
AV_PKT_DATA_PARAM_CHANGE
@ AV_PKT_DATA_PARAM_CHANGE
An AV_PKT_DATA_PARAM_CHANGE side data packet is laid out as follows:
Definition: packet.h:69
pkt
AVPacket * pkt
Definition: movenc.c:60
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
AVFormatContext::metadata
AVDictionary * metadata
Metadata that applies to the whole file.
Definition: avformat.h:1495
av_dump_format
void av_dump_format(AVFormatContext *ic, int index, const char *url, int is_output)
Print detailed information about the input or output format, such as duration, bitrate,...
Definition: dump.c:795
duration
int64_t duration
Definition: movenc.c:65
dump_sidedata
static void dump_sidedata(void *ctx, const AVStream *st, const char *indent, int log_level)
Definition: dump.c:462
av_dict_get
AVDictionaryEntry * av_dict_get(const AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
Definition: dict.c:62
av_channel_layout_describe
int av_channel_layout_describe(const AVChannelLayout *channel_layout, char *buf, size_t buf_size)
Get a human-readable string describing the channel layout properties.
Definition: channel_layout.c:648
dump_audioservicetype
static void dump_audioservicetype(void *ctx, const AVPacketSideData *sd, int log_level)
Definition: dump.c:277
AV_STREAM_GROUP_PARAMS_IAMF_MIX_PRESENTATION
@ AV_STREAM_GROUP_PARAMS_IAMF_MIX_PRESENTATION
Definition: avformat.h:1088
AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS
@ AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS
Definition: packet.h:611
avcodec_alloc_context3
AVCodecContext * avcodec_alloc_context3(const AVCodec *codec)
Allocate an AVCodecContext and set its fields to default values.
Definition: options.c:149
AVChapter::end
int64_t end
chapter start/end time in time_base units
Definition: avformat.h:1222
width
#define width
stereo3d.h
AVMasteringDisplayMetadata::white_point
AVRational white_point[2]
CIE 1931 xy chromaticity coords of white point.
Definition: mastering_display_metadata.h:47
intreadwrite.h
AVCodecParameters::sample_aspect_ratio
AVRational sample_aspect_ratio
Video only.
Definition: codec_par.h:144
AVFormatContext::nb_programs
unsigned int nb_programs
Definition: avformat.h:1460
AVInputFormat::name
const char * name
A comma separated list of short names for the format.
Definition: avformat.h:553
AVFormatContext::iformat
const struct AVInputFormat * iformat
The input container format.
Definition: avformat.h:1272
AVFormatContext::chapters
AVChapter ** chapters
Definition: avformat.h:1361
dump_replaygain
static void dump_replaygain(void *ctx, const AVPacketSideData *sd, int log_level)
Definition: dump.c:235
AVCodecParameters::width
int width
Video only.
Definition: codec_par.h:134
av_q2d
static double av_q2d(AVRational a)
Convert an AVRational to a double.
Definition: rational.h:104
AVStreamGroup::index
unsigned int index
Group index in AVFormatContext.
Definition: avformat.h:1106
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:201
AVPacketSideData::data
uint8_t * data
Definition: packet.h:385
AVDOVIDecoderConfigurationRecord::dv_profile
uint8_t dv_profile
Definition: dovi_meta.h:57
ctx
AVFormatContext * ctx
Definition: movenc.c:49
dump_metadata
static void dump_metadata(void *ctx, const AVDictionary *m, const char *indent, int log_level)
Definition: dump.c:168
FFStream::codec_info_nb_frames
int codec_info_nb_frames
Number of frames that have been demuxed during avformat_find_stream_info()
Definition: internal.h:392
AVIAMFLayer::ch_layout
AVChannelLayout ch_layout
Definition: iamf.h:288
AV_PKT_DATA_STEREO3D
@ AV_PKT_DATA_STEREO3D
This side data should be associated with a video stream and contains Stereoscopic 3D information in f...
Definition: packet.h:111
nb_streams
static int nb_streams
Definition: ffprobe.c:384
AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED
@ AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED
Definition: defs.h:227
AVCodecParameters::nb_coded_side_data
int nb_coded_side_data
Amount of entries in coded_side_data.
Definition: codec_par.h:86
AVReplayGain::track_peak
uint32_t track_peak
Peak track amplitude, with 100000 representing full scale (but values may overflow).
Definition: replaygain.h:39
AVCPBProperties
This structure describes the bitrate properties of an encoded bitstream.
Definition: defs.h:270
AVDOVIDecoderConfigurationRecord::dv_version_major
uint8_t dv_version_major
Definition: dovi_meta.h:55
dump_paramchange
static void dump_paramchange(void *ctx, const AVPacketSideData *sd, int log_level)
Definition: dump.c:176
AVStereo3D::flags
int flags
Additional information about the frame packing.
Definition: stereo3d.h:212
if
if(ret)
Definition: filter_design.txt:179
AVFormatContext
Format I/O context.
Definition: avformat.h:1260
internal.h
AVStream::codecpar
AVCodecParameters * codecpar
Codec parameters associated with this stream.
Definition: avformat.h:771
avcodec_parameters_to_context
int avcodec_parameters_to_context(AVCodecContext *codec, const struct AVCodecParameters *par)
Fill the codec context based on the values from the supplied codec parameters.
AVStream::time_base
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented.
Definition: avformat.h:787
NULL
#define NULL
Definition: coverity.c:32
AVDOVIDecoderConfigurationRecord::dv_level
uint8_t dv_level
Definition: dovi_meta.h:58
AVDOVIDecoderConfigurationRecord::dv_bl_signal_compatibility_id
uint8_t dv_bl_signal_compatibility_id
Definition: dovi_meta.h:62
avcodec_free_context
void avcodec_free_context(AVCodecContext **avctx)
Free the codec context and everything associated with it and write NULL to the provided pointer.
Definition: options.c:164
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
AVPacketSideData::type
enum AVPacketSideDataType type
Definition: packet.h:387
AV_DISPOSITION_COMMENT
#define AV_DISPOSITION_COMMENT
The stream is a commentary track.
Definition: avformat.h:639
AVStereo3D::horizontal_disparity_adjustment
AVRational horizontal_disparity_adjustment
Relative shift of the left and right images, which changes the zero parallax plane.
Definition: stereo3d.h:234
AVIAMFLayer
A layer defining a Channel Layout in the Audio Element.
Definition: iamf.h:285
AVStream::metadata
AVDictionary * metadata
Definition: avformat.h:828
AV_DISPOSITION_METADATA
#define AV_DISPOSITION_METADATA
The subtitle stream contains time-aligned metadata that is not intended to be directly presented to t...
Definition: avformat.h:703
double
double
Definition: af_crystalizer.c:131
AV_AUDIO_SERVICE_TYPE_EMERGENCY
@ AV_AUDIO_SERVICE_TYPE_EMERGENCY
Definition: defs.h:230
AV_DISPOSITION_ORIGINAL
#define AV_DISPOSITION_ORIGINAL
The stream is in original language.
Definition: avformat.h:635
AV_DISPOSITION_MULTILAYER
#define AV_DISPOSITION_MULTILAYER
The video stream contains multiple layers, e.g.
Definition: avformat.h:718
AVCodecParameters::ch_layout
AVChannelLayout ch_layout
Audio only.
Definition: codec_par.h:180
dump_dictionary
static void dump_dictionary(void *ctx, const AVDictionary *m, const char *name, const char *indent, int log_level)
Definition: dump.c:141
AV_PKT_DATA_CONTENT_LIGHT_LEVEL
@ AV_PKT_DATA_CONTENT_LIGHT_LEVEL
Content light level (based on CTA-861.3).
Definition: packet.h:232
index
int index
Definition: gxfenc.c:90
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
AVAudioServiceType
AVAudioServiceType
Definition: defs.h:223
AVIAMFSubmixElement::audio_element_id
unsigned int audio_element_id
The id of the Audio Element this submix element references.
Definition: iamf.h:443
AV_PKT_DATA_SPHERICAL
@ AV_PKT_DATA_SPHERICAL
This side data should be associated with a video stream and corresponds to the AVSphericalMapping str...
Definition: packet.h:225
AVIAMFSubmix
Submix layout as defined in section 3.7 of IAMF.
Definition: iamf.h:543
AVFormatContext::nb_streams
unsigned int nb_streams
Number of elements in AVFormatContext.streams.
Definition: avformat.h:1316
AVStereo3D::primary_eye
enum AVStereo3DPrimaryEye primary_eye
Which eye is the primary eye when rendering in 2D.
Definition: stereo3d.h:222
AVOutputFormat::flags
int flags
can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_GLOBALHEADER, AVFMT_NOTIMESTAMPS,...
Definition: avformat.h:529
AV_STREAM_GROUP_PARAMS_TILE_GRID
@ AV_STREAM_GROUP_PARAMS_TILE_GRID
Definition: avformat.h:1089
AV_DISPOSITION_CAPTIONS
#define AV_DISPOSITION_CAPTIONS
The subtitle stream contains captions, providing a transcription and possibly a translation of audio.
Definition: avformat.h:692
av_spherical_projection_name
const char * av_spherical_projection_name(enum AVSphericalProjection projection)
Provide a human-readable name of a given AVSphericalProjection.
Definition: spherical.c:67
f
f
Definition: af_crystalizer.c:121
AV_SPHERICAL_CUBEMAP
@ AV_SPHERICAL_CUBEMAP
Video frame is split into 6 faces of a cube, and arranged on a 3x2 layout.
Definition: spherical.h:61
AVPacket::size
int size
Definition: packet.h:534
FFStream
Definition: internal.h:193
av_stereo3d_primary_eye_name
const char * av_stereo3d_primary_eye_name(unsigned int eye)
Provide a human-readable name of a given stereo3d primary eye.
Definition: stereo3d.c:133
size
int size
Definition: twinvq_data.h:10344
AV_NOPTS_VALUE
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
AVStreamGroup::iamf_audio_element
struct AVIAMFAudioElement * iamf_audio_element
Definition: avformat.h:1128
AVReplayGain::track_gain
int32_t track_gain
Track replay gain in microbels (divide by 100000 to get the value in dB).
Definition: replaygain.h:34
AV_DISPOSITION_DUB
#define AV_DISPOSITION_DUB
The stream is not in original language.
Definition: avformat.h:629
AVCPBProperties::min_bitrate
int64_t min_bitrate
Minimum bitrate of the stream, in bits per second.
Definition: defs.h:280
AVStream::sample_aspect_ratio
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown)
Definition: avformat.h:826
AV_DISPOSITION_HEARING_IMPAIRED
#define AV_DISPOSITION_HEARING_IMPAIRED
The stream is intended for hearing impaired audiences.
Definition: avformat.h:658
AVPacket::dts
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed.
Definition: packet.h:532
height
#define height
AVSphericalMapping::padding
uint32_t padding
Number of pixels to pad from the edge of each cube face.
Definition: spherical.h:194
AVIAMFAudioElement
Information on how to combine one or more audio streams, as defined in section 3.6 of IAMF.
Definition: iamf.h:347
AVPacket::flags
int flags
A combination of AV_PKT_FLAG values.
Definition: packet.h:539
AVCPBProperties::avg_bitrate
int64_t avg_bitrate
Average bitrate of the stream, in bits per second.
Definition: defs.h:285
AV_STREAM_GROUP_PARAMS_IAMF_AUDIO_ELEMENT
@ AV_STREAM_GROUP_PARAMS_IAMF_AUDIO_ELEMENT
Definition: avformat.h:1087
AV_STEREO3D_FLAG_INVERT
#define AV_STEREO3D_FLAG_INVERT
Inverted views, Right/Bottom represents the left view.
Definition: stereo3d.h:194
AVStreamGroup::streams
AVStream ** streams
A list of streams in the group.
Definition: avformat.h:1161
dump_stream_format
static void dump_stream_format(const AVFormatContext *ic, int i, int group_index, int index, int is_output, int log_level)
Definition: dump.c:593
AVStreamGroup::iamf_mix_presentation
struct AVIAMFMixPresentation * iamf_mix_presentation
Definition: avformat.h:1129
AV_LOG_INFO
#define AV_LOG_INFO
Standard information.
Definition: log.h:191
av_get_picture_type_char
char av_get_picture_type_char(enum AVPictureType pict_type)
Return a single letter to describe the given picture type pict_type.
Definition: utils.c:40
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:300
HEXDUMP_PRINT
#define HEXDUMP_PRINT(...)
Definition: dump.c:47
AV_PKT_DATA_CPB_PROPERTIES
@ AV_PKT_DATA_CPB_PROPERTIES
This side data corresponds to the AVCPBProperties struct.
Definition: packet.h:142
AVStreamGroupTileGrid::width
int width
Width of the final image for presentation.
Definition: avformat.h:1072
AVSphericalMapping::roll
int32_t roll
Rotation around the forward vector [-180, 180].
Definition: spherical.h:140
AV_PKT_DATA_H263_MB_INFO
@ AV_PKT_DATA_H263_MB_INFO
An AV_PKT_DATA_H263_MB_INFO side data packet contains a number of structures with info about macroblo...
Definition: packet.h:90
log.h
lrintf
#define lrintf(x)
Definition: libm_mips.h:72
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:256
AVPacket::pts
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: packet.h:526
av_timecode_make_smpte_tc_string2
char * av_timecode_make_smpte_tc_string2(char *buf, AVRational rate, uint32_t tcsmpte, int prevent_df, int skip_field)
Get the timecode string from the SMPTE timecode format.
Definition: timecode.c:139
AVCodecContext::properties
unsigned properties
Properties of the stream that gets decoded.
Definition: avcodec.h:1796
AVCodecParameters::height
int height
Definition: codec_par.h:135
AV_TIME_BASE
#define AV_TIME_BASE
Internal time base represented as integer.
Definition: avutil.h:254
display.h
AV_PKT_DATA_ICC_PROFILE
@ AV_PKT_DATA_ICC_PROFILE
ICC profile data consisting of an opaque octet buffer following the format described by ISO 15076-1.
Definition: packet.h:271
AVIAMFMixPresentation
Information on how to render and mix one or more AVIAMFAudioElement to generate the final audio outpu...
Definition: iamf.h:600
AVCPBProperties::max_bitrate
int64_t max_bitrate
Maximum bitrate of the stream, in bits per second.
Definition: defs.h:275
AV_DISPOSITION_KARAOKE
#define AV_DISPOSITION_KARAOKE
The stream contains karaoke audio.
Definition: avformat.h:647
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED
@ AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED
Definition: defs.h:226
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:256
AVProgram
New fields can be added to the end with minor version bumps.
Definition: avformat.h:1184
AV_DISPOSITION_DEPENDENT
#define AV_DISPOSITION_DEPENDENT
The stream is intended to be mixed with another stream before presentation.
Definition: avformat.h:709
AVMasteringDisplayMetadata
Mastering display metadata capable of representing the color volume of the display used to master the...
Definition: mastering_display_metadata.h:38
len
int len
Definition: vorbis_enc_data.h:426
av_rescale
int64_t av_rescale(int64_t a, int64_t b, int64_t c)
Rescale a 64-bit integer with rounding to nearest.
Definition: mathematics.c:129
AVCodecContext::height
int height
Definition: avcodec.h:618
AVCodecParameters::coded_side_data
AVPacketSideData * coded_side_data
Additional data associated with the entire stream.
Definition: codec_par.h:81
ambient_viewing_environment.h
avcodec.h
av_cmp_q
static int av_cmp_q(AVRational a, AVRational b)
Compare two rationals.
Definition: rational.h:89
AVIAMFSubmix::nb_layouts
unsigned int nb_layouts
Number of layouts in the submix.
Definition: iamf.h:574
AVStream::disposition
int disposition
Stream disposition - a combination of AV_DISPOSITION_* flags.
Definition: avformat.h:817
AV_DISPOSITION_VISUAL_IMPAIRED
#define AV_DISPOSITION_VISUAL_IMPAIRED
The stream is intended for visually impaired audiences.
Definition: avformat.h:662
tag
uint32_t tag
Definition: movenc.c:1876
AVStream::id
int id
Format-specific stream ID.
Definition: avformat.h:760
ret
ret
Definition: filter_design.txt:187
AVStream
Stream structure.
Definition: avformat.h:748
av_hex_dump_log
void av_hex_dump_log(void *avcl, int level, const uint8_t *buf, int size)
Send a nice hexadecimal dump of a buffer to the log.
Definition: dump.c:87
AVFormatContext::oformat
const struct AVOutputFormat * oformat
The output container format.
Definition: avformat.h:1279
AVCPBProperties::buffer_size
int64_t buffer_size
The size of the buffer to which the ratecontrol is applied, in bits.
Definition: defs.h:291
dump_spherical
static void dump_spherical(void *ctx, const AVCodecParameters *par, const AVPacketSideData *sd, int log_level)
Definition: dump.c:380
AVSphericalMapping::pitch
int32_t pitch
Rotation around the right vector [-90, 90].
Definition: spherical.h:139
AVStreamGroup::metadata
AVDictionary * metadata
Metadata that applies to the whole group.
Definition: avformat.h:1141
AVStereo3D::type
enum AVStereo3DType type
How views are packed within the video.
Definition: stereo3d.h:207
avformat.h
dovi_meta.h
AV_AUDIO_SERVICE_TYPE_KARAOKE
@ AV_AUDIO_SERVICE_TYPE_KARAOKE
Definition: defs.h:232
AV_DISPOSITION_DESCRIPTIONS
#define AV_DISPOSITION_DESCRIPTIONS
The subtitle stream contains a textual description of the video content.
Definition: avformat.h:698
left
Tag MUST be and< 10hcoeff half pel interpolation filter coefficients, hcoeff[0] are the 2 middle coefficients[1] are the next outer ones and so on, resulting in a filter like:...eff[2], hcoeff[1], hcoeff[0], hcoeff[0], hcoeff[1], hcoeff[2] ... the sign of the coefficients is not explicitly stored but alternates after each coeff and coeff[0] is positive, so ...,+,-,+,-,+,+,-,+,-,+,... hcoeff[0] is not explicitly stored but found by subtracting the sum of all stored coefficients with signs from 32 hcoeff[0]=32 - hcoeff[1] - hcoeff[2] - ... a good choice for hcoeff and htaps is htaps=6 hcoeff={40,-10, 2} an alternative which requires more computations at both encoder and decoder side and may or may not be better is htaps=8 hcoeff={42,-14, 6,-2}ref_frames minimum of the number of available reference frames and max_ref_frames for example the first frame after a key frame always has ref_frames=1spatial_decomposition_type wavelet type 0 is a 9/7 symmetric compact integer wavelet 1 is a 5/3 symmetric compact integer wavelet others are reserved stored as delta from last, last is reset to 0 if always_reset||keyframeqlog quality(logarithmic quantizer scale) stored as delta from last, last is reset to 0 if always_reset||keyframemv_scale stored as delta from last, last is reset to 0 if always_reset||keyframe FIXME check that everything works fine if this changes between framesqbias dequantization bias stored as delta from last, last is reset to 0 if always_reset||keyframeblock_max_depth maximum depth of the block tree stored as delta from last, last is reset to 0 if always_reset||keyframequant_table quantization tableHighlevel bitstream structure:==============================--------------------------------------------|Header|--------------------------------------------|------------------------------------|||Block0||||split?||||yes no||||......... intra?||||:Block01 :yes no||||:Block02 :....... ..........||||:Block03 ::y DC ::ref index:||||:Block04 ::cb DC ::motion x :||||......... :cr DC ::motion y :||||....... ..........|||------------------------------------||------------------------------------|||Block1|||...|--------------------------------------------|------------ ------------ ------------|||Y subbands||Cb subbands||Cr subbands||||--- ---||--- ---||--- ---|||||LL0||HL0||||LL0||HL0||||LL0||HL0|||||--- ---||--- ---||--- ---||||--- ---||--- ---||--- ---|||||LH0||HH0||||LH0||HH0||||LH0||HH0|||||--- ---||--- ---||--- ---||||--- ---||--- ---||--- ---|||||HL1||LH1||||HL1||LH1||||HL1||LH1|||||--- ---||--- ---||--- ---||||--- ---||--- ---||--- ---|||||HH1||HL2||||HH1||HL2||||HH1||HL2|||||...||...||...|||------------ ------------ ------------|--------------------------------------------Decoding process:=================------------|||Subbands|------------||||------------|Intra DC||||LL0 subband prediction ------------|\ Dequantization ------------------- \||Reference frames|\ IDWT|------- -------|Motion \|||Frame 0||Frame 1||Compensation . OBMC v -------|------- -------|--------------. \------> Frame n output Frame Frame<----------------------------------/|...|------------------- Range Coder:============Binary Range Coder:------------------- The implemented range coder is an adapted version based upon "Range encoding: an algorithm for removing redundancy from a digitised message." by G. N. N. Martin. The symbols encoded by the Snow range coder are bits(0|1). The associated probabilities are not fix but change depending on the symbol mix seen so far. bit seen|new state ---------+----------------------------------------------- 0|256 - state_transition_table[256 - old_state];1|state_transition_table[old_state];state_transition_table={ 0, 0, 0, 0, 0, 0, 0, 0, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 190, 191, 192, 194, 194, 195, 196, 197, 198, 199, 200, 201, 202, 202, 204, 205, 206, 207, 208, 209, 209, 210, 211, 212, 213, 215, 215, 216, 217, 218, 219, 220, 220, 222, 223, 224, 225, 226, 227, 227, 229, 229, 230, 231, 232, 234, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 248, 0, 0, 0, 0, 0, 0, 0};FIXME Range Coding of integers:------------------------- FIXME Neighboring Blocks:===================left and top are set to the respective blocks unless they are outside of the image in which case they are set to the Null block top-left is set to the top left block unless it is outside of the image in which case it is set to the left block if this block has no larger parent block or it is at the left side of its parent block and the top right block is not outside of the image then the top right block is used for top-right else the top-left block is used Null block y, cb, cr are 128 level, ref, mx and my are 0 Motion Vector Prediction:=========================1. the motion vectors of all the neighboring blocks are scaled to compensate for the difference of reference frames scaled_mv=(mv *(256 *(current_reference+1)/(mv.reference+1))+128)> the median of the scaled left
Definition: snow.txt:386
AV_RL32
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
Definition: bytestream.h:92
SIZE_SPECIFIER
#define SIZE_SPECIFIER
Definition: internal.h:129
AVStreamGroup
Definition: avformat.h:1095
AVCodecContext
main external API structure.
Definition: avcodec.h:445
AVStream::index
int index
stream index in AVFormatContext
Definition: avformat.h:754
AVStreamGroup::nb_streams
unsigned int nb_streams
Number of elements in AVStreamGroup.streams.
Definition: avformat.h:1148
channel_layout.h
AVInputFormat::flags
int flags
Can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_SHOW_IDS, AVFMT_NOTIMESTAMPS,...
Definition: avformat.h:567
AVCodecContext::qmin
int qmin
minimum quantizer
Definition: avcodec.h:1256
AVRational::den
int den
Denominator.
Definition: rational.h:60
AVDOVIDecoderConfigurationRecord::bl_present_flag
uint8_t bl_present_flag
Definition: dovi_meta.h:61
AV_AUDIO_SERVICE_TYPE_COMMENTARY
@ AV_AUDIO_SERVICE_TYPE_COMMENTARY
Definition: defs.h:229
AVIAMFSubmixLayout::sound_system
AVChannelLayout sound_system
Channel layout matching one of Sound Systems A to J of ITU-2051-3, plus 7.1.2ch and 3....
Definition: iamf.h:512
AVReplayGain::album_peak
uint32_t album_peak
Same as track_peak, but for the whole album,.
Definition: replaygain.h:47
AVStream::r_frame_rate
AVRational r_frame_rate
Real base framerate of the stream.
Definition: avformat.h:914
AVDOVIDecoderConfigurationRecord::rpu_present_flag
uint8_t rpu_present_flag
Definition: dovi_meta.h:59
AVDOVIDecoderConfigurationRecord::el_present_flag
uint8_t el_present_flag
Definition: dovi_meta.h:60
AVMasteringDisplayMetadata::min_luminance
AVRational min_luminance
Min luminance of mastering display (cd/m^2).
Definition: mastering_display_metadata.h:52
AVFormatContext::duration
int64_t duration
Duration of the stream, in AV_TIME_BASE fractional seconds.
Definition: avformat.h:1395
AVPacket::stream_index
int stream_index
Definition: packet.h:535
pkt_dump_internal
static void pkt_dump_internal(void *avcl, FILE *f, int level, const AVPacket *pkt, int dump_payload, AVRational time_base)
Definition: dump.c:92
AVReplayGain
ReplayGain information (see http://wiki.hydrogenaudio.org/index.php?title=ReplayGain_1....
Definition: replaygain.h:29
AVIAMFSubmix::nb_elements
unsigned int nb_elements
Number of elements in the submix.
Definition: iamf.h:559
AVCodecContext::coded_width
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:633
AV_PKT_DATA_AUDIO_SERVICE_TYPE
@ AV_PKT_DATA_AUDIO_SERVICE_TYPE
This side data should be associated with an audio stream and corresponds to enum AVAudioServiceType.
Definition: packet.h:117
AVDOVIDecoderConfigurationRecord::dv_version_minor
uint8_t dv_version_minor
Definition: dovi_meta.h:56
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
mem.h
AVStreamGroup::type
enum AVStreamGroupParamsType type
Group type.
Definition: avformat.h:1122
mastering_display_metadata.h
print_peak
static void print_peak(void *ctx, const char *str, uint32_t peak, int log_level)
Definition: dump.c:225
AVIAMFMixPresentation::annotations
AVDictionary * annotations
A dictionary of strings describing the mix in different languages.
Definition: iamf.h:628
AVFormatContext::nb_stream_groups
unsigned int nb_stream_groups
Number of elements in AVFormatContext.stream_groups.
Definition: avformat.h:1335
AVStreamGroupTileGrid::height
int height
Height of the final image for presentation.
Definition: avformat.h:1082
AVStereo3D::view
enum AVStereo3DView view
Determines which views are packed.
Definition: stereo3d.h:217
av_free
#define av_free(p)
Definition: tableprint_vlc.h:33
AVDictionaryEntry
Definition: dict.h:89
AV_AUDIO_SERVICE_TYPE_EFFECTS
@ AV_AUDIO_SERVICE_TYPE_EFFECTS
Definition: defs.h:225
AVContentLightMetadata::MaxFALL
unsigned MaxFALL
Max average light level per frame (cd/m^2).
Definition: mastering_display_metadata.h:116
AVPacket
This structure stores compressed data.
Definition: packet.h:510
d
d
Definition: ffmpeg_filter.c:424
AVCodecContext::width
int width
picture width / height.
Definition: avcodec.h:618
int32_t
int32_t
Definition: audioconvert.c:56
AVIAMFSubmixElement
Submix element as defined in section 3.7 of IAMF.
Definition: iamf.h:437
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:482
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
AVFormatContext::start_time
int64_t start_time
Position of the first frame of the component, in AV_TIME_BASE fractional seconds.
Definition: avformat.h:1385
av_stereo3d_type_name
const char * av_stereo3d_type_name(unsigned int type)
Provide a human-readable name of a given stereo3d type.
Definition: stereo3d.c:93
av_pkt_dump_log2
void av_pkt_dump_log2(void *avcl, int level, const AVPacket *pkt, int dump_payload, const AVStream *st)
Send a nice dump of a packet to the log.
Definition: dump.c:121
AV_AUDIO_SERVICE_TYPE_DIALOGUE
@ AV_AUDIO_SERVICE_TYPE_DIALOGUE
Definition: defs.h:228
AVStereo3D
Stereo 3D type: this structure describes how two videos are packed within a single video surface,...
Definition: stereo3d.h:203
AVDictionaryEntry::value
char * value
Definition: dict.h:91
avstring.h
AVAmbientViewingEnvironment::ambient_light_y
AVRational ambient_light_y
Normalized y chromaticity coordinate of the environmental ambient light in the nominal viewing enviro...
Definition: ambient_viewing_environment.h:54
AVChapter::time_base
AVRational time_base
time base in which the start/end timestamps are specified
Definition: avformat.h:1221
AVIAMFMixPresentation::submixes
AVIAMFSubmix ** submixes
Array of submixes.
Definition: iamf.h:609
dump_stream_group
static void dump_stream_group(const AVFormatContext *ic, uint8_t *printed, int i, int index, int is_output)
Definition: dump.c:682
AV_AUDIO_SERVICE_TYPE_MAIN
@ AV_AUDIO_SERVICE_TYPE_MAIN
Definition: defs.h:224
AVSphericalMapping
This structure describes how to handle spherical videos, outlining information about projection,...
Definition: spherical.h:94
av_dict_iterate
const AVDictionaryEntry * av_dict_iterate(const AVDictionary *m, const AVDictionaryEntry *prev)
Iterate over a dictionary.
Definition: dict.c:44
AVSphericalMapping::yaw
int32_t yaw
Rotation around the up vector [-180, 180].
Definition: spherical.h:138
av_display_rotation_get
double av_display_rotation_get(const int32_t matrix[9])
Extract the rotation component of the transformation matrix.
Definition: display.c:35
AV_DISPOSITION_LYRICS
#define AV_DISPOSITION_LYRICS
The stream contains song lyrics.
Definition: avformat.h:643
AVDOVIDecoderConfigurationRecord
Definition: dovi_meta.h:54
AV_DISPOSITION_NON_DIEGETIC
#define AV_DISPOSITION_NON_DIEGETIC
The stream is intended to be mixed with a spatial audio track.
Definition: avformat.h:686
av_hex_dump
void av_hex_dump(FILE *f, const uint8_t *buf, int size)
Send a nice hexadecimal dump of a buffer to the specified file stream.
Definition: dump.c:82