FFmpeg  4.3.8
h265_metadata_bsf.c
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
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8  *
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12  * Lesser General Public License for more details.
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15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include "libavutil/common.h"
20 #include "libavutil/opt.h"
21 
22 #include "bsf.h"
23 #include "bsf_internal.h"
24 #include "cbs.h"
25 #include "cbs_h265.h"
26 #include "hevc.h"
27 #include "h265_profile_level.h"
28 
29 enum {
33 };
34 
35 enum {
37  LEVEL_AUTO = -1,
38 };
39 
40 typedef struct H265MetadataContext {
41  const AVClass *class;
42 
45 
47 
48  int aud;
49 
51 
57 
59 
63 
64  int crop_left;
66  int crop_top;
68 
69  int level;
73 
74 
76  const CodedBitstreamFragment *au)
77 {
81  const H265RawHRDParameters *hrd = NULL;
82  int64_t bit_rate = 0;
83  int width = 0, height = 0;
84  int tile_cols = 0, tile_rows = 0;
85  int max_dec_pic_buffering = 0;
86  int i;
87 
88  for (i = 0; i < au->nb_units; i++) {
89  const CodedBitstreamUnit *unit = &au->units[i];
90 
91  if (unit->type == HEVC_NAL_VPS) {
92  const H265RawVPS *vps = unit->content;
93 
94  ptl = &vps->profile_tier_level;
95  max_dec_pic_buffering = vps->vps_max_dec_pic_buffering_minus1[0] + 1;
96 
97  if (vps->vps_num_hrd_parameters > 0)
98  hrd = &vps->hrd_parameters[0];
99 
100  } else if (unit->type == HEVC_NAL_SPS) {
101  const H265RawSPS *sps = unit->content;
102 
103  ptl = &sps->profile_tier_level;
104  max_dec_pic_buffering = sps->sps_max_dec_pic_buffering_minus1[0] + 1;
105 
106  width = sps->pic_width_in_luma_samples;
108 
110  hrd = &sps->vui.hrd_parameters;
111 
112  } else if (unit->type == HEVC_NAL_PPS) {
113  const H265RawPPS *pps = unit->content;
114 
115  if (pps->tiles_enabled_flag) {
116  tile_cols = pps->num_tile_columns_minus1 + 1;
117  tile_rows = pps->num_tile_rows_minus1 + 1;
118  }
119  }
120  }
121 
122  if (hrd) {
124  bit_rate = (hrd->nal_sub_layer_hrd_parameters[0].bit_rate_value_minus1[0] + 1) *
125  (INT64_C(1) << hrd->bit_rate_scale + 6);
126  } else if (hrd->vcl_hrd_parameters_present_flag) {
127  bit_rate = (hrd->vcl_sub_layer_hrd_parameters[0].bit_rate_value_minus1[0] + 1) *
128  (INT64_C(1) << hrd->bit_rate_scale + 6);
129  // Adjust for VCL vs. NAL limits.
130  bit_rate = bit_rate * 11 / 10;
131  }
132  }
133 
134  desc = ff_h265_guess_level(ptl, bit_rate, width, height,
135  0, tile_rows, tile_cols,
136  max_dec_pic_buffering);
137  if (desc) {
138  av_log(bsf, AV_LOG_DEBUG, "Stream appears to conform to "
139  "level %s.\n", desc->name);
140  ctx->level_guess = desc->level_idc;
141  }
142 }
143 
146 {
148 
149  if (ctx->level != LEVEL_UNSET) {
150  if (ctx->level == LEVEL_AUTO) {
151  if (ctx->level_guess) {
152  *level_idc = ctx->level_guess;
153  } else {
154  if (!ctx->level_warned) {
155  av_log(bsf, AV_LOG_WARNING, "Unable to determine level "
156  "of stream: using level 8.5.\n");
157  ctx->level_warned = 1;
158  }
159  *level_idc = 255;
160  }
161  } else {
162  *level_idc = ctx->level;
163  }
164  }
165 }
166 
168  H265RawVPS *vps)
169 {
171 
172  if (ctx->tick_rate.num && ctx->tick_rate.den) {
173  int num, den;
174 
175  av_reduce(&num, &den, ctx->tick_rate.num, ctx->tick_rate.den,
176  UINT32_MAX > INT_MAX ? UINT32_MAX : INT_MAX);
177 
178  vps->vps_time_scale = num;
179  vps->vps_num_units_in_tick = den;
180 
182 
183  if (ctx->num_ticks_poc_diff_one > 0) {
185  ctx->num_ticks_poc_diff_one - 1;
187  } else if (ctx->num_ticks_poc_diff_one == 0) {
189  }
190  }
191 
193 
194  return 0;
195 }
196 
198  H265RawSPS *sps)
199 {
201  int need_vui = 0;
202  int crop_unit_x, crop_unit_y;
203 
204  if (ctx->sample_aspect_ratio.num && ctx->sample_aspect_ratio.den) {
205  // Table E-1.
206  static const AVRational sar_idc[] = {
207  { 0, 0 }, // Unspecified (never written here).
208  { 1, 1 }, { 12, 11 }, { 10, 11 }, { 16, 11 },
209  { 40, 33 }, { 24, 11 }, { 20, 11 }, { 32, 11 },
210  { 80, 33 }, { 18, 11 }, { 15, 11 }, { 64, 33 },
211  { 160, 99 }, { 4, 3 }, { 3, 2 }, { 2, 1 },
212  };
213  int num, den, i;
214 
215  av_reduce(&num, &den, ctx->sample_aspect_ratio.num,
216  ctx->sample_aspect_ratio.den, 65535);
217 
218  for (i = 1; i < FF_ARRAY_ELEMS(sar_idc); i++) {
219  if (num == sar_idc[i].num &&
220  den == sar_idc[i].den)
221  break;
222  }
223  if (i == FF_ARRAY_ELEMS(sar_idc)) {
224  sps->vui.aspect_ratio_idc = 255;
225  sps->vui.sar_width = num;
226  sps->vui.sar_height = den;
227  } else {
228  sps->vui.aspect_ratio_idc = i;
229  }
231  need_vui = 1;
232  }
233 
234 #define SET_OR_INFER(field, value, present_flag, infer) do { \
235  if (value >= 0) { \
236  field = value; \
237  need_vui = 1; \
238  } else if (!present_flag) \
239  field = infer; \
240  } while (0)
241 
242  if (ctx->video_format >= 0 ||
243  ctx->video_full_range_flag >= 0 ||
244  ctx->colour_primaries >= 0 ||
245  ctx->transfer_characteristics >= 0 ||
246  ctx->matrix_coefficients >= 0) {
247 
250 
254 
255  if (ctx->colour_primaries >= 0 ||
256  ctx->transfer_characteristics >= 0 ||
257  ctx->matrix_coefficients >= 0) {
258 
260  ctx->colour_primaries,
262 
266 
268  ctx->matrix_coefficients,
270 
272  }
274  need_vui = 1;
275  }
276 
277  if (ctx->chroma_sample_loc_type >= 0) {
283  need_vui = 1;
284  }
285 
286  if (ctx->tick_rate.num && ctx->tick_rate.den) {
287  int num, den;
288 
289  av_reduce(&num, &den, ctx->tick_rate.num, ctx->tick_rate.den,
290  UINT32_MAX > INT_MAX ? UINT32_MAX : INT_MAX);
291 
292  sps->vui.vui_time_scale = num;
293  sps->vui.vui_num_units_in_tick = den;
294 
296  need_vui = 1;
297 
298  if (ctx->num_ticks_poc_diff_one > 0) {
300  ctx->num_ticks_poc_diff_one - 1;
302  } else if (ctx->num_ticks_poc_diff_one == 0) {
304  }
305  }
306 
307  if (sps->separate_colour_plane_flag || sps->chroma_format_idc == 0) {
308  crop_unit_x = 1;
309  crop_unit_y = 1;
310  } else {
311  crop_unit_x = 1 + (sps->chroma_format_idc < 3);
312  crop_unit_y = 1 + (sps->chroma_format_idc < 2);
313  }
314 #define CROP(border, unit) do { \
315  if (ctx->crop_ ## border >= 0) { \
316  if (ctx->crop_ ## border % unit != 0) { \
317  av_log(bsf, AV_LOG_ERROR, "Invalid value for crop_%s: " \
318  "must be a multiple of %d.\n", #border, unit); \
319  return AVERROR(EINVAL); \
320  } \
321  sps->conf_win_ ## border ## _offset = \
322  ctx->crop_ ## border / unit; \
323  sps->conformance_window_flag = 1; \
324  } \
325  } while (0)
326  CROP(left, crop_unit_x);
327  CROP(right, crop_unit_x);
328  CROP(top, crop_unit_y);
329  CROP(bottom, crop_unit_y);
330 #undef CROP
331 
332  if (need_vui)
334 
336 
337  return 0;
338 }
339 
341 {
344  uint8_t *side_data;
345  int side_data_size;
346  int err, i;
347 
349  &side_data_size);
350  if (!side_data_size)
351  return 0;
352 
353  err = ff_cbs_read(ctx->cbc, au, side_data, side_data_size);
354  if (err < 0) {
355  av_log(bsf, AV_LOG_ERROR, "Failed to read extradata from packet side data.\n");
356  return err;
357  }
358 
359  if (ctx->level == LEVEL_AUTO && !ctx->level_guess)
360  h265_metadata_guess_level(bsf, au);
361 
362  for (i = 0; i < au->nb_units; i++) {
363  if (au->units[i].type == HEVC_NAL_VPS) {
364  err = h265_metadata_update_vps(bsf, au->units[i].content);
365  if (err < 0)
366  return err;
367  }
368  if (au->units[i].type == HEVC_NAL_SPS) {
369  err = h265_metadata_update_sps(bsf, au->units[i].content);
370  if (err < 0)
371  return err;
372  }
373  }
374 
375  err = ff_cbs_write_fragment_data(ctx->cbc, au);
376  if (err < 0) {
377  av_log(bsf, AV_LOG_ERROR, "Failed to write extradata into packet side data.\n");
378  return err;
379  }
380 
382  if (!side_data)
383  return AVERROR(ENOMEM);
384  memcpy(side_data, au->data, au->data_size);
385 
386  ff_cbs_fragment_reset(ctx->cbc, au);
387 
388  return 0;
389 }
390 
392 {
395  int err, i;
396 
397  err = ff_bsf_get_packet_ref(bsf, pkt);
398  if (err < 0)
399  return err;
400 
401  err = h265_metadata_update_side_data(bsf, pkt);
402  if (err < 0)
403  goto fail;
404 
405  err = ff_cbs_read_packet(ctx->cbc, au, pkt);
406  if (err < 0) {
407  av_log(bsf, AV_LOG_ERROR, "Failed to read packet.\n");
408  goto fail;
409  }
410 
411  if (au->nb_units == 0) {
412  av_log(bsf, AV_LOG_ERROR, "No NAL units in packet.\n");
413  err = AVERROR_INVALIDDATA;
414  goto fail;
415  }
416 
417  // If an AUD is present, it must be the first NAL unit.
418  if (au->nb_units && au->units[0].type == HEVC_NAL_AUD) {
419  if (ctx->aud == REMOVE)
420  ff_cbs_delete_unit(ctx->cbc, au, 0);
421  } else {
422  if (ctx->aud == INSERT) {
423  H265RawAUD *aud = &ctx->aud_nal;
424  int pic_type = 0, temporal_id = 8, layer_id = 0;
425 
426  for (i = 0; i < au->nb_units; i++) {
427  const H265RawNALUnitHeader *nal = au->units[i].content;
428  if (!nal)
429  continue;
430  if (nal->nuh_temporal_id_plus1 < temporal_id + 1)
431  temporal_id = nal->nuh_temporal_id_plus1 - 1;
432 
433  if (au->units[i].type <= HEVC_NAL_RSV_VCL31) {
434  const H265RawSlice *slice = au->units[i].content;
435  layer_id = nal->nuh_layer_id;
436  if (slice->header.slice_type == HEVC_SLICE_B &&
437  pic_type < 2)
438  pic_type = 2;
439  if (slice->header.slice_type == HEVC_SLICE_P &&
440  pic_type < 1)
441  pic_type = 1;
442  }
443  }
444 
447  .nuh_layer_id = layer_id,
448  .nuh_temporal_id_plus1 = temporal_id + 1,
449  };
450  aud->pic_type = pic_type;
451 
452  err = ff_cbs_insert_unit_content(ctx->cbc, au,
453  0, HEVC_NAL_AUD, aud, NULL);
454  if (err < 0) {
455  av_log(bsf, AV_LOG_ERROR, "Failed to insert AUD.\n");
456  goto fail;
457  }
458  }
459  }
460 
461  if (ctx->level == LEVEL_AUTO && !ctx->level_guess)
462  h265_metadata_guess_level(bsf, au);
463 
464  for (i = 0; i < au->nb_units; i++) {
465  if (au->units[i].type == HEVC_NAL_VPS) {
466  err = h265_metadata_update_vps(bsf, au->units[i].content);
467  if (err < 0)
468  goto fail;
469  }
470  if (au->units[i].type == HEVC_NAL_SPS) {
471  err = h265_metadata_update_sps(bsf, au->units[i].content);
472  if (err < 0)
473  goto fail;
474  }
475  }
476 
477  err = ff_cbs_write_packet(ctx->cbc, pkt, au);
478  if (err < 0) {
479  av_log(bsf, AV_LOG_ERROR, "Failed to write packet.\n");
480  goto fail;
481  }
482 
483  err = 0;
484 fail:
485  ff_cbs_fragment_reset(ctx->cbc, au);
486 
487  if (err < 0)
488  av_packet_unref(pkt);
489 
490  return err;
491 }
492 
494 {
497  int err, i;
498 
499  err = ff_cbs_init(&ctx->cbc, AV_CODEC_ID_HEVC, bsf);
500  if (err < 0)
501  return err;
502 
503  if (bsf->par_in->extradata) {
504  err = ff_cbs_read_extradata(ctx->cbc, au, bsf->par_in);
505  if (err < 0) {
506  av_log(bsf, AV_LOG_ERROR, "Failed to read extradata.\n");
507  goto fail;
508  }
509 
510  if (ctx->level == LEVEL_AUTO)
511  h265_metadata_guess_level(bsf, au);
512 
513  for (i = 0; i < au->nb_units; i++) {
514  if (au->units[i].type == HEVC_NAL_VPS) {
515  err = h265_metadata_update_vps(bsf, au->units[i].content);
516  if (err < 0)
517  goto fail;
518  }
519  if (au->units[i].type == HEVC_NAL_SPS) {
520  err = h265_metadata_update_sps(bsf, au->units[i].content);
521  if (err < 0)
522  goto fail;
523  }
524  }
525 
526  err = ff_cbs_write_extradata(ctx->cbc, bsf->par_out, au);
527  if (err < 0) {
528  av_log(bsf, AV_LOG_ERROR, "Failed to write extradata.\n");
529  goto fail;
530  }
531  }
532 
533  err = 0;
534 fail:
535  ff_cbs_fragment_reset(ctx->cbc, au);
536  return err;
537 }
538 
540 {
542 
543  ff_cbs_fragment_free(ctx->cbc, &ctx->access_unit);
544  ff_cbs_close(&ctx->cbc);
545 }
546 
547 #define OFFSET(x) offsetof(H265MetadataContext, x)
548 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_BSF_PARAM)
549 static const AVOption h265_metadata_options[] = {
550  { "aud", "Access Unit Delimiter NAL units",
552  { .i64 = PASS }, PASS, REMOVE, FLAGS, "aud" },
553  { "pass", NULL, 0, AV_OPT_TYPE_CONST,
554  { .i64 = PASS }, .flags = FLAGS, .unit = "aud" },
555  { "insert", NULL, 0, AV_OPT_TYPE_CONST,
556  { .i64 = INSERT }, .flags = FLAGS, .unit = "aud" },
557  { "remove", NULL, 0, AV_OPT_TYPE_CONST,
558  { .i64 = REMOVE }, .flags = FLAGS, .unit = "aud" },
559 
560  { "sample_aspect_ratio", "Set sample aspect ratio (table E-1)",
562  { .dbl = 0.0 }, 0, 65535, FLAGS },
563 
564  { "video_format", "Set video format (table E-2)",
566  { .i64 = -1 }, -1, 7, FLAGS },
567  { "video_full_range_flag", "Set video full range flag",
569  { .i64 = -1 }, -1, 1, FLAGS },
570  { "colour_primaries", "Set colour primaries (table E-3)",
572  { .i64 = -1 }, -1, 255, FLAGS },
573  { "transfer_characteristics", "Set transfer characteristics (table E-4)",
575  { .i64 = -1 }, -1, 255, FLAGS },
576  { "matrix_coefficients", "Set matrix coefficients (table E-5)",
578  { .i64 = -1 }, -1, 255, FLAGS },
579 
580  { "chroma_sample_loc_type", "Set chroma sample location type (figure E-1)",
582  { .i64 = -1 }, -1, 6, FLAGS },
583 
584  { "tick_rate",
585  "Set VPS and VUI tick rate (num_units_in_tick / time_scale)",
587  { .dbl = 0.0 }, 0, UINT_MAX, FLAGS },
588  { "num_ticks_poc_diff_one",
589  "Set VPS and VUI number of ticks per POC increment",
591  { .i64 = -1 }, -1, INT_MAX, FLAGS },
592 
593  { "crop_left", "Set left border crop offset",
595  { .i64 = -1 }, -1, HEVC_MAX_WIDTH, FLAGS },
596  { "crop_right", "Set right border crop offset",
598  { .i64 = -1 }, -1, HEVC_MAX_WIDTH, FLAGS },
599  { "crop_top", "Set top border crop offset",
601  { .i64 = -1 }, -1, HEVC_MAX_HEIGHT, FLAGS },
602  { "crop_bottom", "Set bottom border crop offset",
604  { .i64 = -1 }, -1, HEVC_MAX_HEIGHT, FLAGS },
605 
606  { "level", "Set level (tables A.6 and A.7)",
608  { .i64 = LEVEL_UNSET }, LEVEL_UNSET, 0xff, FLAGS, "level" },
609  { "auto", "Attempt to guess level from stream properties",
611  { .i64 = LEVEL_AUTO }, .flags = FLAGS, .unit = "level" },
612 #define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
613  { .i64 = value }, .flags = FLAGS, .unit = "level"
614  { LEVEL("1", 30) },
615  { LEVEL("2", 60) },
616  { LEVEL("2.1", 63) },
617  { LEVEL("3", 90) },
618  { LEVEL("3.1", 93) },
619  { LEVEL("4", 120) },
620  { LEVEL("4.1", 123) },
621  { LEVEL("5", 150) },
622  { LEVEL("5.1", 153) },
623  { LEVEL("5.2", 156) },
624  { LEVEL("6", 180) },
625  { LEVEL("6.1", 183) },
626  { LEVEL("6.2", 186) },
627  { LEVEL("8.5", 255) },
628 #undef LEVEL
629 
630  { NULL }
631 };
632 
633 static const AVClass h265_metadata_class = {
634  .class_name = "h265_metadata_bsf",
635  .item_name = av_default_item_name,
636  .option = h265_metadata_options,
637  .version = LIBAVUTIL_VERSION_INT,
638 };
639 
640 static const enum AVCodecID h265_metadata_codec_ids[] = {
642 };
643 
645  .name = "hevc_metadata",
646  .priv_data_size = sizeof(H265MetadataContext),
647  .priv_class = &h265_metadata_class,
649  .close = &h265_metadata_close,
652 };
uint32_t bit_rate_value_minus1[HEVC_MAX_CPB_CNT]
Definition: cbs_h265.h:101
#define NULL
Definition: coverity.c:32
static enum AVCodecID h265_metadata_codec_ids[]
int nb_units
Number of units in this fragment.
Definition: cbs.h:147
uint8_t transfer_characteristics
Definition: cbs_h265.h:149
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
AVCodecParameters * par_out
Parameters of the output stream.
Definition: bsf.h:83
uint8_t vps_poc_proportional_to_timing_flag
Definition: cbs_h265.h:216
AVOption.
Definition: opt.h:246
static void h265_metadata_update_level(AVBSFContext *bsf, uint8_t *level_idc)
H265RawHRDParameters hrd_parameters
Definition: cbs_h265.h:172
uint8_t nal_hrd_parameters_present_flag
Definition: cbs_h265.h:109
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
int ff_cbs_write_packet(CodedBitstreamContext *ctx, AVPacket *pkt, CodedBitstreamFragment *frag)
Write the bitstream of a fragment to a packet.
Definition: cbs.c:401
const char * desc
Definition: nvenc.c:79
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
uint8_t vui_timing_info_present_flag
Definition: cbs_h265.h:166
int ff_cbs_init(CodedBitstreamContext **ctx_ptr, enum AVCodecID codec_id, void *log_ctx)
Create and initialise a new context for the given codec.
Definition: cbs.c:74
void ff_cbs_delete_unit(CodedBitstreamContext *ctx, CodedBitstreamFragment *frag, int position)
Delete a unit from a fragment and free all memory it uses.
Definition: cbs.c:799
CodedBitstreamUnitType type
Codec-specific type of this unit.
Definition: cbs.h:68
int num
Numerator.
Definition: rational.h:59
The bitstream filter state.
Definition: bsf.h:49
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
uint8_t tiles_enabled_flag
Definition: cbs_h265.h:384
int ff_cbs_insert_unit_content(CodedBitstreamContext *ctx, CodedBitstreamFragment *frag, int position, CodedBitstreamUnitType type, void *content, AVBufferRef *content_buf)
Insert a new unit into a fragment with the given content.
Definition: cbs.c:722
uint8_t bit_rate_scale
Definition: cbs_h265.h:118
H265RawProfileTierLevel profile_tier_level
Definition: cbs_h265.h:260
static AVPacket pkt
uint8_t vui_parameters_present_flag
Definition: cbs_h265.h:318
void * priv_data
Opaque filter-specific private data.
Definition: bsf.h:70
uint32_t vps_num_units_in_tick
Definition: cbs_h265.h:214
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:72
static int h265_metadata_update_sps(AVBSFContext *bsf, H265RawSPS *sps)
int tile_cols
Definition: h265_levels.c:218
static void filter(int16_t *output, ptrdiff_t out_stride, int16_t *low, ptrdiff_t low_stride, int16_t *high, ptrdiff_t high_stride, int len, int clip)
Definition: cfhd.c:196
uint16_t pic_height_in_luma_samples
Definition: cbs_h265.h:268
#define OFFSET(x)
uint8_t
H265RawSubLayerHRDParameters nal_sub_layer_hrd_parameters[HEVC_MAX_SUB_LAYERS]
Definition: cbs_h265.h:131
static const AVOption h265_metadata_options[]
AVOptions.
uint8_t colour_primaries
Definition: cbs_h265.h:148
uint8_t video_format
Definition: cbs_h265.h:145
uint8_t vps_timing_info_present_flag
Definition: cbs_h265.h:213
int level_idc
Definition: h264_levels.c:25
int ff_cbs_read_packet(CodedBitstreamContext *ctx, CodedBitstreamFragment *frag, const AVPacket *pkt)
Read the data bitstream from a packet into a fragment, then split into units and decompose.
Definition: cbs.c:242
const H265RawProfileTierLevel * ptl
Definition: h265_levels.c:170
const char * name
Definition: bsf.h:99
#define height
uint8_t matrix_coefficients
Definition: cbs_h265.h:150
uint8_t aspect_ratio_info_present_flag
Definition: cbs_h265.h:136
uint8_t nuh_temporal_id_plus1
Definition: cbs_h265.h:40
static int h265_metadata_update_side_data(AVBSFContext *bsf, AVPacket *pkt)
Coded bitstream unit structure.
Definition: cbs.h:64
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
void * content
Pointer to the decomposed form of this unit.
Definition: cbs.h:101
CodedBitstreamUnit * units
Pointer to an array of units of length nb_units_allocated.
Definition: cbs.h:162
uint8_t video_full_range_flag
Definition: cbs_h265.h:146
#define av_log(a,...)
uint8_t chroma_sample_loc_type_bottom_field
Definition: cbs_h265.h:154
uint8_t video_signal_type_present_flag
Definition: cbs_h265.h:144
size_t data_size
The number of bytes in the bitstream.
Definition: cbs.h:129
H265RawVUI vui
Definition: cbs_h265.h:319
void ff_cbs_fragment_free(CodedBitstreamContext *ctx, CodedBitstreamFragment *frag)
Free the units array of a fragment in addition to what ff_cbs_fragment_reset does.
Definition: cbs.c:157
uint32_t vui_num_ticks_poc_diff_one_minus1
Definition: cbs_h265.h:170
uint8_t vps_max_dec_pic_buffering_minus1[HEVC_MAX_SUB_LAYERS]
Definition: cbs_h265.h:205
static void h265_metadata_close(AVBSFContext *bsf)
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: codec_id.h:46
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
uint8_t nuh_layer_id
Definition: cbs_h265.h:39
#define AVERROR(e)
Definition: error.h:43
uint8_t * av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type, int *size)
Get side information from packet.
Definition: avpacket.c:353
uint8_t chroma_loc_info_present_flag
Definition: cbs_h265.h:152
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
uint16_t sar_height
Definition: cbs_h265.h:139
#define fail()
Definition: checkasm.h:123
#define LEVEL(name, value)
uint8_t chroma_sample_loc_type_top_field
Definition: cbs_h265.h:153
uint32_t vui_time_scale
Definition: cbs_h265.h:168
H265RawHRDParameters hrd_parameters[HEVC_MAX_LAYER_SETS]
Definition: cbs_h265.h:221
H265RawNALUnitHeader nal_unit_header
Definition: cbs_h265.h:446
uint8_t slice_type
Definition: cbs_h265.h:462
H265RawProfileTierLevel profile_tier_level
Definition: cbs_h265.h:202
int ff_cbs_write_extradata(CodedBitstreamContext *ctx, AVCodecParameters *par, CodedBitstreamFragment *frag)
Write the bitstream of a fragment to the extradata in codec parameters.
Definition: cbs.c:376
uint8_t pic_type
Definition: cbs_h265.h:448
uint16_t sar_width
Definition: cbs_h265.h:138
#define width
uint8_t vui_hrd_parameters_present_flag
Definition: cbs_h265.h:171
AVFormatContext * ctx
Definition: movenc.c:48
uint16_t pic_width_in_luma_samples
Definition: cbs_h265.h:267
static int h265_metadata_init(AVBSFContext *bsf)
uint8_t vcl_hrd_parameters_present_flag
Definition: cbs_h265.h:110
H265RawSubLayerHRDParameters vcl_sub_layer_hrd_parameters[HEVC_MAX_SUB_LAYERS]
Definition: cbs_h265.h:132
int tile_rows
Definition: h265_levels.c:217
uint8_t * data
Pointer to the bitstream form of this fragment.
Definition: cbs.h:122
#define FF_ARRAY_ELEMS(a)
int ff_cbs_write_fragment_data(CodedBitstreamContext *ctx, CodedBitstreamFragment *frag)
Write the content of the fragment to its own internal buffer.
Definition: cbs.c:340
uint16_t vps_num_hrd_parameters
Definition: cbs_h265.h:218
CodedBitstreamContext * cbc
The AV_PKT_DATA_NEW_EXTRADATA is used to notify the codec or the format that the extradata buffer was...
Definition: packet.h:55
const H265LevelDescriptor * ff_h265_guess_level(const H265RawProfileTierLevel *ptl, int64_t bitrate, int width, int height, int slice_segments, int tile_rows, int tile_cols, int max_dec_pic_buffering)
Guess the level of a stream from some parameters.
Coded bitstream fragment structure, combining one or more units.
Definition: cbs.h:116
uint8_t general_level_idc
Definition: cbs_h265.h:68
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:605
long long int64_t
Definition: coverity.c:34
uint32_t vui_num_units_in_tick
Definition: cbs_h265.h:167
CodedBitstreamFragment access_unit
Describe the class of an AVClass context structure.
Definition: log.h:67
void ff_cbs_fragment_reset(CodedBitstreamContext *ctx, CodedBitstreamFragment *frag)
Free the units contained in a fragment as well as the fragment&#39;s own data buffer, but not the units a...
Definition: cbs.c:142
static int FUNC() pps(CodedBitstreamContext *ctx, RWContext *rw, H264RawPPS *current)
Context structure for coded bitstream operations.
Definition: cbs.h:168
Rational number (pair of numerator and denominator).
Definition: rational.h:58
static void h265_metadata_guess_level(AVBSFContext *bsf, const CodedBitstreamFragment *au)
static int FUNC() sps(CodedBitstreamContext *ctx, RWContext *rw, H264RawSPS *current)
uint8_t chroma_format_idc
Definition: cbs_h265.h:264
void ff_cbs_close(CodedBitstreamContext **ctx_ptr)
Close a context and free all internal state.
Definition: cbs.c:115
int ff_cbs_read_extradata(CodedBitstreamContext *ctx, CodedBitstreamFragment *frag, const AVCodecParameters *par)
Read the extradata bitstream found in codec parameters into a fragment, then split into units and dec...
Definition: cbs.c:224
static int FUNC() vps(CodedBitstreamContext *ctx, RWContext *rw, H265RawVPS *current)
#define CROP(border, unit)
uint8_t vui_poc_proportional_to_timing_flag
Definition: cbs_h265.h:169
const AVBitStreamFilter ff_hevc_metadata_bsf
static int h265_metadata_filter(AVBSFContext *bsf, AVPacket *pkt)
common internal and external API header
uint8_t num_tile_rows_minus1
Definition: cbs_h265.h:388
static enum AVCodecID codec_ids[]
uint8_t num_tile_columns_minus1
Definition: cbs_h265.h:387
static const AVClass h265_metadata_class
int den
Denominator.
Definition: rational.h:60
#define SET_OR_INFER(field, value, present_flag, infer)
static int h265_metadata_update_vps(AVBSFContext *bsf, H265RawVPS *vps)
H265RawSliceHeader header
Definition: cbs_h265.h:542
uint32_t vps_time_scale
Definition: cbs_h265.h:215
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: codec_par.h:74
uint8_t aspect_ratio_idc
Definition: cbs_h265.h:137
uint8_t sps_max_dec_pic_buffering_minus1[HEVC_MAX_SUB_LAYERS]
Definition: cbs_h265.h:282
AVRational sample_aspect_ratio
uint8_t * av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type, int size)
Allocate new information of a packet.
Definition: avpacket.c:332
int ff_cbs_read(CodedBitstreamContext *ctx, CodedBitstreamFragment *frag, const uint8_t *data, size_t size)
Read a bitstream from a memory region into a fragment, then split into units and decompose.
Definition: cbs.c:269
uint32_t vps_num_ticks_poc_diff_one_minus1
Definition: cbs_h265.h:217
uint8_t separate_colour_plane_flag
Definition: cbs_h265.h:265
uint8_t colour_description_present_flag
Definition: cbs_h265.h:147
#define FLAGS
This structure stores compressed data.
Definition: packet.h:332
AVCodecParameters * par_in
Parameters of the input stream.
Definition: bsf.h:77
int ff_bsf_get_packet_ref(AVBSFContext *ctx, AVPacket *pkt)
Called by bitstream filters to get packet for filtering.
Definition: bsf.c:249
uint8_t nal_unit_type
Definition: cbs_h265.h:38