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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
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
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 "cbs.h"
24 #include "cbs_h265.h"
25 #include "hevc.h"
26 
27 enum {
31 };
32 
33 typedef struct H265MetadataContext {
34  const AVClass *class;
35 
38 
40 
41  int aud;
42 
44 
50 
52 
56 
57  int crop_left;
59  int crop_top;
62 
63 
65  H265RawVPS *vps)
66 {
68 
69  if (ctx->tick_rate.num && ctx->tick_rate.den) {
70  int num, den;
71 
72  av_reduce(&num, &den, ctx->tick_rate.num, ctx->tick_rate.den,
73  UINT32_MAX > INT_MAX ? UINT32_MAX : INT_MAX);
74 
75  vps->vps_time_scale = num;
76  vps->vps_num_units_in_tick = den;
77 
79 
80  if (ctx->num_ticks_poc_diff_one > 0) {
82  ctx->num_ticks_poc_diff_one - 1;
84  } else if (ctx->num_ticks_poc_diff_one == 0) {
86  }
87  }
88 
89  return 0;
90 }
91 
93  H265RawSPS *sps)
94 {
96  int need_vui = 0;
97  int crop_unit_x, crop_unit_y;
98 
100  // Table E-1.
101  static const AVRational sar_idc[] = {
102  { 0, 0 }, // Unspecified (never written here).
103  { 1, 1 }, { 12, 11 }, { 10, 11 }, { 16, 11 },
104  { 40, 33 }, { 24, 11 }, { 20, 11 }, { 32, 11 },
105  { 80, 33 }, { 18, 11 }, { 15, 11 }, { 64, 33 },
106  { 160, 99 }, { 4, 3 }, { 3, 2 }, { 2, 1 },
107  };
108  int num, den, i;
109 
110  av_reduce(&num, &den, ctx->sample_aspect_ratio.num,
111  ctx->sample_aspect_ratio.den, 65535);
112 
113  for (i = 1; i < FF_ARRAY_ELEMS(sar_idc); i++) {
114  if (num == sar_idc[i].num &&
115  den == sar_idc[i].den)
116  break;
117  }
118  if (i == FF_ARRAY_ELEMS(sar_idc)) {
119  sps->vui.aspect_ratio_idc = 255;
120  sps->vui.sar_width = num;
121  sps->vui.sar_height = den;
122  } else {
123  sps->vui.aspect_ratio_idc = i;
124  }
126  need_vui = 1;
127  }
128 
129 #define SET_OR_INFER(field, value, present_flag, infer) do { \
130  if (value >= 0) { \
131  field = value; \
132  need_vui = 1; \
133  } else if (!present_flag) \
134  field = infer; \
135  } while (0)
136 
137  if (ctx->video_format >= 0 ||
138  ctx->video_full_range_flag >= 0 ||
139  ctx->colour_primaries >= 0 ||
140  ctx->transfer_characteristics >= 0 ||
141  ctx->matrix_coefficients >= 0) {
142 
145 
149 
150  if (ctx->colour_primaries >= 0 ||
151  ctx->transfer_characteristics >= 0 ||
152  ctx->matrix_coefficients >= 0) {
153 
155  ctx->colour_primaries,
157 
161 
163  ctx->matrix_coefficients,
165 
167  }
169  need_vui = 1;
170  }
171 
172  if (ctx->chroma_sample_loc_type >= 0) {
178  need_vui = 1;
179  }
180 
181  if (ctx->tick_rate.num && ctx->tick_rate.den) {
182  int num, den;
183 
184  av_reduce(&num, &den, ctx->tick_rate.num, ctx->tick_rate.den,
185  UINT32_MAX > INT_MAX ? UINT32_MAX : INT_MAX);
186 
187  sps->vui.vui_time_scale = num;
188  sps->vui.vui_num_units_in_tick = den;
189 
191  need_vui = 1;
192 
193  if (ctx->num_ticks_poc_diff_one > 0) {
195  ctx->num_ticks_poc_diff_one - 1;
197  } else if (ctx->num_ticks_poc_diff_one == 0) {
199  }
200  }
201 
202  if (sps->separate_colour_plane_flag || sps->chroma_format_idc == 0) {
203  crop_unit_x = 1;
204  crop_unit_y = 1;
205  } else {
206  crop_unit_x = 1 + (sps->chroma_format_idc < 3);
207  crop_unit_y = 1 + (sps->chroma_format_idc < 2);
208  }
209 #define CROP(border, unit) do { \
210  if (ctx->crop_ ## border >= 0) { \
211  if (ctx->crop_ ## border % unit != 0) { \
212  av_log(bsf, AV_LOG_ERROR, "Invalid value for crop_%s: " \
213  "must be a multiple of %d.\n", #border, unit); \
214  return AVERROR(EINVAL); \
215  } \
216  sps->conf_win_ ## border ## _offset = \
217  ctx->crop_ ## border / unit; \
218  sps->conformance_window_flag = 1; \
219  } \
220  } while (0)
221  CROP(left, crop_unit_x);
222  CROP(right, crop_unit_x);
223  CROP(top, crop_unit_y);
224  CROP(bottom, crop_unit_y);
225 #undef CROP
226 
227  if (need_vui)
229 
230  return 0;
231 }
232 
234 {
236  AVPacket *in = NULL;
238  int err, i;
239 
240  err = ff_bsf_get_packet(bsf, &in);
241  if (err < 0)
242  goto fail;
243 
244  err = ff_cbs_read_packet(ctx->cbc, au, in);
245  if (err < 0) {
246  av_log(bsf, AV_LOG_ERROR, "Failed to read packet.\n");
247  goto fail;
248  }
249 
250  if (au->nb_units == 0) {
251  av_log(bsf, AV_LOG_ERROR, "No NAL units in packet.\n");
252  err = AVERROR_INVALIDDATA;
253  goto fail;
254  }
255 
256  // If an AUD is present, it must be the first NAL unit.
257  if (au->units[0].type == HEVC_NAL_AUD) {
258  if (ctx->aud == REMOVE)
259  ff_cbs_delete_unit(ctx->cbc, au, 0);
260  } else {
261  if (ctx->aud == INSERT) {
262  H265RawAUD *aud = &ctx->aud_nal;
263  int pic_type = 0, temporal_id = 8, layer_id = 0;
264 
265  for (i = 0; i < au->nb_units; i++) {
266  const H265RawNALUnitHeader *nal = au->units[i].content;
267  if (!nal)
268  continue;
269  if (nal->nuh_temporal_id_plus1 < temporal_id + 1)
270  temporal_id = nal->nuh_temporal_id_plus1 - 1;
271 
272  if (au->units[i].type <= HEVC_NAL_RSV_VCL31) {
273  const H265RawSlice *slice = au->units[i].content;
274  layer_id = nal->nuh_layer_id;
275  if (slice->header.slice_type == HEVC_SLICE_B &&
276  pic_type < 2)
277  pic_type = 2;
278  if (slice->header.slice_type == HEVC_SLICE_P &&
279  pic_type < 1)
280  pic_type = 1;
281  }
282  }
283 
286  .nuh_layer_id = layer_id,
287  .nuh_temporal_id_plus1 = temporal_id + 1,
288  };
289  aud->pic_type = pic_type;
290 
291  err = ff_cbs_insert_unit_content(ctx->cbc, au,
292  0, HEVC_NAL_AUD, aud);
293  if (err) {
294  av_log(bsf, AV_LOG_ERROR, "Failed to insert AUD.\n");
295  goto fail;
296  }
297  }
298  }
299 
300  for (i = 0; i < au->nb_units; i++) {
301  if (au->units[i].type == HEVC_NAL_VPS) {
302  err = h265_metadata_update_vps(bsf, au->units[i].content);
303  if (err < 0)
304  goto fail;
305  }
306  if (au->units[i].type == HEVC_NAL_SPS) {
307  err = h265_metadata_update_sps(bsf, au->units[i].content);
308  if (err < 0)
309  goto fail;
310  }
311  }
312 
313  err = ff_cbs_write_packet(ctx->cbc, out, au);
314  if (err < 0) {
315  av_log(bsf, AV_LOG_ERROR, "Failed to write packet.\n");
316  goto fail;
317  }
318 
319  err = av_packet_copy_props(out, in);
320  if (err < 0)
321  goto fail;
322 
323  err = 0;
324 fail:
325  ff_cbs_fragment_uninit(ctx->cbc, au);
326 
327  av_packet_free(&in);
328 
329  return err;
330 }
331 
333 {
336  int err, i;
337 
338  err = ff_cbs_init(&ctx->cbc, AV_CODEC_ID_HEVC, bsf);
339  if (err < 0)
340  return err;
341 
342  if (bsf->par_in->extradata) {
343  err = ff_cbs_read_extradata(ctx->cbc, au, bsf->par_in);
344  if (err < 0) {
345  av_log(bsf, AV_LOG_ERROR, "Failed to read extradata.\n");
346  goto fail;
347  }
348 
349  for (i = 0; i < au->nb_units; i++) {
350  if (au->units[i].type == HEVC_NAL_VPS) {
351  err = h265_metadata_update_vps(bsf, au->units[i].content);
352  if (err < 0)
353  goto fail;
354  }
355  if (au->units[i].type == HEVC_NAL_SPS) {
356  err = h265_metadata_update_sps(bsf, au->units[i].content);
357  if (err < 0)
358  goto fail;
359  }
360  }
361 
362  err = ff_cbs_write_extradata(ctx->cbc, bsf->par_out, au);
363  if (err < 0) {
364  av_log(bsf, AV_LOG_ERROR, "Failed to write extradata.\n");
365  goto fail;
366  }
367  }
368 
369  err = 0;
370 fail:
371  ff_cbs_fragment_uninit(ctx->cbc, au);
372  return err;
373 }
374 
376 {
378  ff_cbs_close(&ctx->cbc);
379 }
380 
381 #define OFFSET(x) offsetof(H265MetadataContext, x)
382 static const AVOption h265_metadata_options[] = {
383  { "aud", "Access Unit Delimiter NAL units",
385  { .i64 = PASS }, PASS, REMOVE, 0, "aud" },
386  { "pass", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PASS }, .unit = "aud" },
387  { "insert", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = INSERT }, .unit = "aud" },
388  { "remove", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = REMOVE }, .unit = "aud" },
389 
390  { "sample_aspect_ratio", "Set sample aspect ratio (table E-1)",
391  OFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL,
392  { .dbl = 0.0 }, 0, 65535 },
393 
394  { "video_format", "Set video format (table E-2)",
395  OFFSET(video_format), AV_OPT_TYPE_INT,
396  { .i64 = -1 }, -1, 7 },
397  { "video_full_range_flag", "Set video full range flag",
398  OFFSET(video_full_range_flag), AV_OPT_TYPE_INT,
399  { .i64 = -1 }, -1, 1 },
400  { "colour_primaries", "Set colour primaries (table E-3)",
401  OFFSET(colour_primaries), AV_OPT_TYPE_INT,
402  { .i64 = -1 }, -1, 255 },
403  { "transfer_characteristics", "Set transfer characteristics (table E-4)",
405  { .i64 = -1 }, -1, 255 },
406  { "matrix_coefficients", "Set matrix coefficients (table E-5)",
407  OFFSET(matrix_coefficients), AV_OPT_TYPE_INT,
408  { .i64 = -1 }, -1, 255 },
409 
410  { "chroma_sample_loc_type", "Set chroma sample location type (figure E-1)",
411  OFFSET(chroma_sample_loc_type), AV_OPT_TYPE_INT,
412  { .i64 = -1 }, -1, 6 },
413 
414  { "tick_rate",
415  "Set VPS and VUI tick rate (num_units_in_tick / time_scale)",
416  OFFSET(tick_rate), AV_OPT_TYPE_RATIONAL,
417  { .dbl = 0.0 }, 0, UINT_MAX },
418  { "num_ticks_poc_diff_one",
419  "Set VPS and VUI number of ticks per POC increment",
420  OFFSET(num_ticks_poc_diff_one), AV_OPT_TYPE_INT,
421  { .i64 = -1 }, -1, INT_MAX },
422 
423  { "crop_left", "Set left border crop offset",
424  OFFSET(crop_left), AV_OPT_TYPE_INT,
425  { .i64 = -1 }, -1, HEVC_MAX_WIDTH },
426  { "crop_right", "Set right border crop offset",
427  OFFSET(crop_right), AV_OPT_TYPE_INT,
428  { .i64 = -1 }, -1, HEVC_MAX_WIDTH },
429  { "crop_top", "Set top border crop offset",
430  OFFSET(crop_top), AV_OPT_TYPE_INT,
431  { .i64 = -1 }, -1, HEVC_MAX_HEIGHT },
432  { "crop_bottom", "Set bottom border crop offset",
433  OFFSET(crop_bottom), AV_OPT_TYPE_INT,
434  { .i64 = -1 }, -1, HEVC_MAX_HEIGHT },
435 
436  { NULL }
437 };
438 
439 static const AVClass h265_metadata_class = {
440  .class_name = "h265_metadata_bsf",
441  .item_name = av_default_item_name,
442  .option = h265_metadata_options,
443  .version = LIBAVUTIL_VERSION_INT,
444 };
445 
446 static const enum AVCodecID h265_metadata_codec_ids[] = {
448 };
449 
451  .name = "hevc_metadata",
452  .priv_data_size = sizeof(H265MetadataContext),
453  .priv_class = &h265_metadata_class,
455  .close = &h265_metadata_close,
458 };
#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:133
uint8_t transfer_characteristics
Definition: cbs_h265.h:118
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
AVCodecParameters * par_out
Parameters of the output stream.
Definition: avcodec.h:5591
uint8_t vps_poc_proportional_to_timing_flag
Definition: cbs_h265.h:184
AVOption.
Definition: opt.h:246
#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:267
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
static int h265_metadata_filter(AVBSFContext *bsf, AVPacket *out)
uint8_t vui_timing_info_present_flag
Definition: cbs_h265.h:135
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:42
CodedBitstreamUnitType type
Codec-specific type of this unit.
Definition: cbs.h:65
int num
Numerator.
Definition: rational.h:59
The bitstream filter state.
Definition: avcodec.h:5557
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:193
uint8_t vui_parameters_present_flag
Definition: cbs_h265.h:286
void * priv_data
Opaque filter-specific private data.
Definition: avcodec.h:5578
uint32_t vps_num_units_in_tick
Definition: cbs_h265.h:182
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)
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:97
void av_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
Definition: avpacket.c:62
#define OFFSET(x)
static const AVOption h265_metadata_options[]
AVOptions.
uint8_t colour_primaries
Definition: cbs_h265.h:117
uint8_t video_format
Definition: cbs_h265.h:114
uint8_t vps_timing_info_present_flag
Definition: cbs_h265.h:181
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:172
const char * name
Definition: avcodec.h:5607
uint8_t matrix_coefficients
Definition: cbs_h265.h:119
uint8_t aspect_ratio_info_present_flag
Definition: cbs_h265.h:105
uint8_t nuh_temporal_id_plus1
Definition: cbs_h265.h:33
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:92
CodedBitstreamUnit * units
Pointer to an array of units of length nb_units.
Definition: cbs.h:139
uint8_t video_full_range_flag
Definition: cbs_h265.h:115
int ff_cbs_insert_unit_content(CodedBitstreamContext *ctx, CodedBitstreamFragment *frag, int position, CodedBitstreamUnitType type, void *content)
Insert a new unit into a fragment with the given content.
Definition: cbs.c:422
#define av_log(a,...)
uint8_t chroma_sample_loc_type_bottom_field
Definition: cbs_h265.h:123
uint8_t video_signal_type_present_flag
Definition: cbs_h265.h:113
H265RawVUI vui
Definition: cbs_h265.h:287
uint32_t vui_num_ticks_poc_diff_one_minus1
Definition: cbs_h265.h:139
static void h265_metadata_close(AVBSFContext *bsf)
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: avcodec.h:215
#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:32
void ff_cbs_fragment_uninit(CodedBitstreamContext *ctx, CodedBitstreamFragment *frag)
Free all allocated memory in a fragment.
Definition: cbs.c:106
uint8_t chroma_loc_info_present_flag
Definition: cbs_h265.h:121
uint16_t sar_height
Definition: cbs_h265.h:108
#define fail()
Definition: checkasm.h:113
uint8_t chroma_sample_loc_type_top_field
Definition: cbs_h265.h:122
uint32_t vui_time_scale
Definition: cbs_h265.h:137
H265RawNALUnitHeader nal_unit_header
Definition: cbs_h265.h:414
uint8_t slice_type
Definition: cbs_h265.h:430
static const struct TransferCharacteristics transfer_characteristics[AVCOL_TRC_NB]
int av_packet_copy_props(AVPacket *dst, const AVPacket *src)
Copy only "properties" fields from src to dst.
Definition: avpacket.c:558
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:242
uint8_t pic_type
Definition: cbs_h265.h:416
uint16_t sar_width
Definition: cbs_h265.h:107
AVFormatContext * ctx
Definition: movenc.c:48
int 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:468
static int h265_metadata_init(AVBSFContext *bsf)
#define FF_ARRAY_ELEMS(a)
CodedBitstreamContext * cbc
Coded bitstream fragment structure, combining one or more units.
Definition: cbs.h:108
uint32_t vui_num_units_in_tick
Definition: cbs_h265.h:136
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
static int FUNC() aud(CodedBitstreamContext *ctx, RWContext *rw, H264RawAUD *current)
CodedBitstreamFragment access_unit
Describe the class of an AVClass context structure.
Definition: log.h:67
Context structure for coded bitstream operations.
Definition: cbs.h:145
Rational number (pair of numerator and denominator).
Definition: rational.h:58
static int FUNC() sps(CodedBitstreamContext *ctx, RWContext *rw, H264RawSPS *current)
uint8_t chroma_format_idc
Definition: cbs_h265.h:232
void ff_cbs_close(CodedBitstreamContext **ctx_ptr)
Close a context and free all internal state.
Definition: cbs.c:81
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:151
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:138
const AVBitStreamFilter ff_hevc_metadata_bsf
common internal and external API header
static enum AVCodecID codec_ids[]
int ff_bsf_get_packet(AVBSFContext *ctx, AVPacket **pkt)
Called by the bitstream filters to get the next packet for filtering.
Definition: bsf.c:201
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:510
uint32_t vps_time_scale
Definition: cbs_h265.h:183
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: avcodec.h:3826
uint8_t aspect_ratio_idc
Definition: cbs_h265.h:106
FILE * out
Definition: movenc.c:54
AVRational sample_aspect_ratio
uint32_t vps_num_ticks_poc_diff_one_minus1
Definition: cbs_h265.h:185
uint8_t separate_colour_plane_flag
Definition: cbs_h265.h:233
uint8_t colour_description_present_flag
Definition: cbs_h265.h:116
This structure stores compressed data.
Definition: avcodec.h:1377
AVCodecParameters * par_in
Parameters of the input stream.
Definition: avcodec.h:5585
uint8_t nal_unit_type
Definition: cbs_h265.h:31