FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/h264_metadata_bsf.c
Date: 2022-01-16 20:33:26
Exec Total Coverage
Lines: 56 250 22.4%
Branches: 55 238 23.1%

Line Branch Exec Source
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/avstring.h"
20 #include "libavutil/display.h"
21 #include "libavutil/common.h"
22 #include "libavutil/opt.h"
23
24 #include "bsf.h"
25 #include "cbs.h"
26 #include "cbs_bsf.h"
27 #include "cbs_h264.h"
28 #include "h264.h"
29 #include "h264_levels.h"
30 #include "h264_sei.h"
31
32 enum {
33 FLIP_HORIZONTAL = 1,
34 FLIP_VERTICAL = 2,
35 };
36
37 enum {
38 LEVEL_UNSET = -2,
39 LEVEL_AUTO = -1,
40 };
41
42 typedef struct H264MetadataContext {
43 CBSBSFContext common;
44
45 int done_first_au;
46
47 int aud;
48 H264RawAUD aud_nal;
49
50 AVRational sample_aspect_ratio;
51
52 int overscan_appropriate_flag;
53
54 int video_format;
55 int video_full_range_flag;
56 int colour_primaries;
57 int transfer_characteristics;
58 int matrix_coefficients;
59
60 int chroma_sample_loc_type;
61
62 AVRational tick_rate;
63 int fixed_frame_rate_flag;
64 int zero_new_constraint_set_flags;
65
66 int crop_left;
67 int crop_right;
68 int crop_top;
69 int crop_bottom;
70
71 const char *sei_user_data;
72 SEIRawUserDataUnregistered sei_user_data_payload;
73
74 int delete_filler;
75
76 int display_orientation;
77 double rotate;
78 int flip;
79 H264RawSEIDisplayOrientation display_orientation_payload;
80
81 int level;
82 } H264MetadataContext;
83
84
85 static int h264_metadata_insert_aud(AVBSFContext *bsf,
86 CodedBitstreamFragment *au)
87 {
88 H264MetadataContext *ctx = bsf->priv_data;
89 int primary_pic_type_mask = 0xff;
90 int err, i, j;
91
92 static const int primary_pic_type_table[] = {
93 0x084, // 2, 7
94 0x0a5, // 0, 2, 5, 7
95 0x0e7, // 0, 1, 2, 5, 6, 7
96 0x210, // 4, 9
97 0x318, // 3, 4, 8, 9
98 0x294, // 2, 4, 7, 9
99 0x3bd, // 0, 2, 3, 4, 5, 7, 8, 9
100 0x3ff, // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
101 };
102
103 for (i = 0; i < au->nb_units; i++) {
104 if (au->units[i].type == H264_NAL_SLICE ||
105 au->units[i].type == H264_NAL_IDR_SLICE) {
106 H264RawSlice *slice = au->units[i].content;
107 for (j = 0; j < FF_ARRAY_ELEMS(primary_pic_type_table); j++) {
108 if (!(primary_pic_type_table[j] &
109 (1 << slice->header.slice_type)))
110 primary_pic_type_mask &= ~(1 << j);
111 }
112 }
113 }
114 for (j = 0; j < FF_ARRAY_ELEMS(primary_pic_type_table); j++)
115 if (primary_pic_type_mask & (1 << j))
116 break;
117 if (j >= FF_ARRAY_ELEMS(primary_pic_type_table)) {
118 av_log(bsf, AV_LOG_ERROR, "No usable primary_pic_type: "
119 "invalid slice types?\n");
120 return AVERROR_INVALIDDATA;
121 }
122
123 ctx->aud_nal = (H264RawAUD) {
124 .nal_unit_header.nal_unit_type = H264_NAL_AUD,
125 .primary_pic_type = j,
126 };
127
128 err = ff_cbs_insert_unit_content(au, 0, H264_NAL_AUD,
129 &ctx->aud_nal, NULL);
130 if (err < 0) {
131 av_log(bsf, AV_LOG_ERROR, "Failed to insert AUD.\n");
132 return err;
133 }
134
135 return 0;
136 }
137
138 42 static int h264_metadata_update_sps(AVBSFContext *bsf,
139 H264RawSPS *sps)
140 {
141 42 H264MetadataContext *ctx = bsf->priv_data;
142 42 int need_vui = 0;
143 int crop_unit_x, crop_unit_y;
144
145
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42 if (ctx->sample_aspect_ratio.num && ctx->sample_aspect_ratio.den) {
146 // Table E-1.
147 static const AVRational sar_idc[] = {
148 { 0, 0 }, // Unspecified (never written here).
149 { 1, 1 }, { 12, 11 }, { 10, 11 }, { 16, 11 },
150 { 40, 33 }, { 24, 11 }, { 20, 11 }, { 32, 11 },
151 { 80, 33 }, { 18, 11 }, { 15, 11 }, { 64, 33 },
152 { 160, 99 }, { 4, 3 }, { 3, 2 }, { 2, 1 },
153 };
154 int num, den, i;
155
156 av_reduce(&num, &den, ctx->sample_aspect_ratio.num,
157 ctx->sample_aspect_ratio.den, 65535);
158
159 for (i = 1; i < FF_ARRAY_ELEMS(sar_idc); i++) {
160 if (num == sar_idc[i].num &&
161 den == sar_idc[i].den)
162 break;
163 }
164 if (i == FF_ARRAY_ELEMS(sar_idc)) {
165 sps->vui.aspect_ratio_idc = 255;
166 sps->vui.sar_width = num;
167 sps->vui.sar_height = den;
168 } else {
169 sps->vui.aspect_ratio_idc = i;
170 }
171 sps->vui.aspect_ratio_info_present_flag = 1;
172 need_vui = 1;
173 }
174
175 #define SET_VUI_FIELD(field) do { \
176 if (ctx->field >= 0) { \
177 sps->vui.field = ctx->field; \
178 need_vui = 1; \
179 } \
180 } while (0)
181
182
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42 if (ctx->overscan_appropriate_flag >= 0) {
183 SET_VUI_FIELD(overscan_appropriate_flag);
184 sps->vui.overscan_info_present_flag = 1;
185 }
186
187
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42 if (ctx->video_format >= 0 ||
188
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42 ctx->video_full_range_flag >= 0 ||
189
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42 ctx->colour_primaries >= 0 ||
190
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42 ctx->transfer_characteristics >= 0 ||
191
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42 ctx->matrix_coefficients >= 0) {
192
193 SET_VUI_FIELD(video_format);
194
195 SET_VUI_FIELD(video_full_range_flag);
196
197 if (ctx->colour_primaries >= 0 ||
198 ctx->transfer_characteristics >= 0 ||
199 ctx->matrix_coefficients >= 0) {
200
201 SET_VUI_FIELD(colour_primaries);
202 SET_VUI_FIELD(transfer_characteristics);
203 SET_VUI_FIELD(matrix_coefficients);
204
205 sps->vui.colour_description_present_flag = 1;
206 }
207 sps->vui.video_signal_type_present_flag = 1;
208 }
209
210
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42 if (ctx->chroma_sample_loc_type >= 0) {
211 sps->vui.chroma_sample_loc_type_top_field =
212 ctx->chroma_sample_loc_type;
213 sps->vui.chroma_sample_loc_type_bottom_field =
214 ctx->chroma_sample_loc_type;
215 sps->vui.chroma_loc_info_present_flag = 1;
216 need_vui = 1;
217 }
218
219
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42 if (ctx->tick_rate.num && ctx->tick_rate.den) {
220 int num, den;
221
222 av_reduce(&num, &den, ctx->tick_rate.num, ctx->tick_rate.den,
223 UINT32_MAX > INT_MAX ? UINT32_MAX : INT_MAX);
224
225 sps->vui.time_scale = num;
226 sps->vui.num_units_in_tick = den;
227
228 sps->vui.timing_info_present_flag = 1;
229 need_vui = 1;
230 }
231
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42 SET_VUI_FIELD(fixed_frame_rate_flag);
232
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42 if (ctx->zero_new_constraint_set_flags) {
233 sps->constraint_set4_flag = 0;
234 sps->constraint_set5_flag = 0;
235 }
236
237
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42 if (sps->separate_colour_plane_flag || sps->chroma_format_idc == 0) {
238 crop_unit_x = 1;
239 crop_unit_y = 2 - sps->frame_mbs_only_flag;
240 } else {
241
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42 crop_unit_x = 1 + (sps->chroma_format_idc < 3);
242
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42 crop_unit_y = (1 + (sps->chroma_format_idc < 2)) *
243 42 (2 - sps->frame_mbs_only_flag);
244 }
245 #define CROP(border, unit) do { \
246 if (ctx->crop_ ## border >= 0) { \
247 if (ctx->crop_ ## border % unit != 0) { \
248 av_log(bsf, AV_LOG_ERROR, "Invalid value for crop_%s: " \
249 "must be a multiple of %d.\n", #border, unit); \
250 return AVERROR(EINVAL); \
251 } \
252 sps->frame_crop_ ## border ## _offset = \
253 ctx->crop_ ## border / unit; \
254 sps->frame_cropping_flag = 1; \
255 } \
256 } while (0)
257
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42 CROP(left, crop_unit_x);
258
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42 CROP(right, crop_unit_x);
259
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42 CROP(top, crop_unit_y);
260
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42 CROP(bottom, crop_unit_y);
261 #undef CROP
262
263
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42 if (ctx->level != LEVEL_UNSET) {
264 int level_idc;
265
266 if (ctx->level == LEVEL_AUTO) {
267 const H264LevelDescriptor *desc;
268 int64_t bit_rate;
269 int width, height, dpb_frames;
270 int framerate;
271
272 if (sps->vui.nal_hrd_parameters_present_flag) {
273 bit_rate = (sps->vui.nal_hrd_parameters.bit_rate_value_minus1[0] + 1) *
274 (INT64_C(1) << (sps->vui.nal_hrd_parameters.bit_rate_scale + 6));
275 } else if (sps->vui.vcl_hrd_parameters_present_flag) {
276 bit_rate = (sps->vui.vcl_hrd_parameters.bit_rate_value_minus1[0] + 1) *
277 (INT64_C(1) << (sps->vui.vcl_hrd_parameters.bit_rate_scale + 6));
278 // Adjust for VCL vs. NAL limits.
279 bit_rate = bit_rate * 6 / 5;
280 } else {
281 bit_rate = 0;
282 }
283
284 // Don't use max_dec_frame_buffering if it is only inferred.
285 dpb_frames = sps->vui.bitstream_restriction_flag ?
286 sps->vui.max_dec_frame_buffering : H264_MAX_DPB_FRAMES;
287
288 width = 16 * (sps->pic_width_in_mbs_minus1 + 1);
289 height = 16 * (sps->pic_height_in_map_units_minus1 + 1) *
290 (2 - sps->frame_mbs_only_flag);
291
292 if (sps->vui.timing_info_present_flag)
293 framerate = sps->vui.time_scale / sps->vui.num_units_in_tick / 2;
294 else
295 framerate = 0;
296
297 desc = ff_h264_guess_level(sps->profile_idc, bit_rate, framerate,
298 width, height, dpb_frames);
299 if (desc) {
300 level_idc = desc->level_idc;
301 } else {
302 av_log(bsf, AV_LOG_WARNING, "Stream does not appear to "
303 "conform to any level: using level 6.2.\n");
304 level_idc = 62;
305 }
306 } else {
307 level_idc = ctx->level;
308 }
309
310 if (level_idc == 9) {
311 if (sps->profile_idc == 66 ||
312 sps->profile_idc == 77 ||
313 sps->profile_idc == 88) {
314 sps->level_idc = 11;
315 sps->constraint_set3_flag = 1;
316 } else {
317 sps->level_idc = 9;
318 }
319 } else {
320 sps->level_idc = level_idc;
321 }
322 }
323
324
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42 if (need_vui)
325 sps->vui_parameters_present_flag = 1;
326
327 42 return 0;
328 }
329
330 static int h264_metadata_handle_display_orientation(AVBSFContext *bsf,
331 AVPacket *pkt,
332 CodedBitstreamFragment *au,
333 int seek_point)
334 {
335 H264MetadataContext *ctx = bsf->priv_data;
336 SEIRawMessage *message;
337 int err;
338
339 message = NULL;
340 while (ff_cbs_sei_find_message(ctx->common.output, au,
341 SEI_TYPE_DISPLAY_ORIENTATION,
342 &message) == 0) {
343 H264RawSEIDisplayOrientation *disp = message->payload;
344 double angle = disp->anticlockwise_rotation * 180.0 / 65536.0;
345 int32_t *matrix;
346
347 matrix = av_malloc(9 * sizeof(int32_t));
348 if (!matrix)
349 return AVERROR(ENOMEM);
350
351 /* av_display_rotation_set() expects the angle in the clockwise
352 * direction, hence the first minus.
353 * The below code applies the flips after the rotation, yet
354 * the H.2645 specs require flipping to be applied first.
355 * Because of R O(phi) = O(-phi) R (where R is flipping around
356 * an arbitatry axis and O(phi) is the proper rotation by phi)
357 * we can create display matrices as desired by negating
358 * the degree once for every flip applied. */
359 angle = -angle * (1 - 2 * !!disp->hor_flip) * (1 - 2 * !!disp->ver_flip);
360
361 av_display_rotation_set(matrix, angle);
362 av_display_matrix_flip(matrix, disp->hor_flip, disp->ver_flip);
363
364 // If there are multiple display orientation messages in an
365 // access unit, then the last one added to the packet (i.e.
366 // the first one in the access unit) will prevail.
367 err = av_packet_add_side_data(pkt, AV_PKT_DATA_DISPLAYMATRIX,
368 (uint8_t*)matrix,
369 9 * sizeof(int32_t));
370 if (err < 0) {
371 av_log(bsf, AV_LOG_ERROR, "Failed to attach extracted "
372 "displaymatrix side data to packet.\n");
373 av_free(matrix);
374 return AVERROR(ENOMEM);
375 }
376 }
377
378 if (ctx->display_orientation == BSF_ELEMENT_REMOVE ||
379 ctx->display_orientation == BSF_ELEMENT_INSERT) {
380 ff_cbs_sei_delete_message_type(ctx->common.output, au,
381 SEI_TYPE_DISPLAY_ORIENTATION);
382 }
383
384 if (ctx->display_orientation == BSF_ELEMENT_INSERT) {
385 H264RawSEIDisplayOrientation *disp =
386 &ctx->display_orientation_payload;
387 uint8_t *data;
388 size_t size;
389 int write = 0;
390
391 data = av_packet_get_side_data(pkt, AV_PKT_DATA_DISPLAYMATRIX, &size);
392 if (data && size >= 9 * sizeof(int32_t)) {
393 int32_t matrix[9];
394 double dmatrix[9];
395 int hflip, vflip, i;
396 double scale_x, scale_y, angle;
397
398 memcpy(matrix, data, sizeof(matrix));
399
400 for (i = 0; i < 9; i++)
401 dmatrix[i] = matrix[i] / 65536.0;
402
403 // Extract scale factors.
404 scale_x = hypot(dmatrix[0], dmatrix[3]);
405 scale_y = hypot(dmatrix[1], dmatrix[4]);
406
407 // Select flips to make the main diagonal positive.
408 hflip = dmatrix[0] < 0.0;
409 vflip = dmatrix[4] < 0.0;
410 if (hflip)
411 scale_x = -scale_x;
412 if (vflip)
413 scale_y = -scale_y;
414
415 // Rescale.
416 for (i = 0; i < 9; i += 3) {
417 dmatrix[i] /= scale_x;
418 dmatrix[i + 1] /= scale_y;
419 }
420
421 // Extract rotation.
422 angle = atan2(dmatrix[3], dmatrix[0]);
423
424 if (!(angle >= -M_PI && angle <= M_PI) ||
425 matrix[2] != 0.0 || matrix[5] != 0.0 ||
426 matrix[6] != 0.0 || matrix[7] != 0.0) {
427 av_log(bsf, AV_LOG_WARNING, "Input display matrix is not "
428 "representable in H.264 parameters.\n");
429 } else {
430 disp->hor_flip = hflip;
431 disp->ver_flip = vflip;
432 disp->anticlockwise_rotation =
433 (uint16_t)rint((angle >= 0.0 ? angle
434 : angle + 2 * M_PI) *
435 32768.0 / M_PI);
436 write = 1;
437 }
438 }
439
440 if (seek_point) {
441 if (!isnan(ctx->rotate)) {
442 disp->anticlockwise_rotation =
443 (uint16_t)rint((ctx->rotate >= 0.0 ? ctx->rotate
444 : ctx->rotate + 360.0) *
445 65536.0 / 360.0);
446 write = 1;
447 }
448 if (ctx->flip) {
449 disp->hor_flip = !!(ctx->flip & FLIP_HORIZONTAL);
450 disp->ver_flip = !!(ctx->flip & FLIP_VERTICAL);
451 write = 1;
452 }
453 }
454
455 if (write) {
456 disp->display_orientation_repetition_period = 1;
457
458 err = ff_cbs_sei_add_message(ctx->common.output, au, 1,
459 SEI_TYPE_DISPLAY_ORIENTATION,
460 disp, NULL);
461 if (err < 0) {
462 av_log(bsf, AV_LOG_ERROR, "Failed to add display orientation "
463 "SEI message to access unit.\n");
464 return err;
465 }
466 }
467 }
468
469 return 0;
470 }
471
472 2390 static int h264_metadata_update_fragment(AVBSFContext *bsf, AVPacket *pkt,
473 CodedBitstreamFragment *au)
474 {
475 2390 H264MetadataContext *ctx = bsf->priv_data;
476 int err, i, has_sps, seek_point;
477
478 // If an AUD is present, it must be the first NAL unit.
479
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2390 if (au->nb_units && au->units[0].type == H264_NAL_AUD) {
480
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234 if (ctx->aud == BSF_ELEMENT_REMOVE)
481 39 ff_cbs_delete_unit(au, 0);
482 } else {
483
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2156 if (pkt && ctx->aud == BSF_ELEMENT_INSERT) {
484 err = h264_metadata_insert_aud(bsf, au);
485 if (err < 0)
486 return err;
487 }
488 }
489
490 2390 has_sps = 0;
491
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9143 for (i = 0; i < au->nb_units; i++) {
492
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6753 if (au->units[i].type == H264_NAL_SPS) {
493 42 err = h264_metadata_update_sps(bsf, au->units[i].content);
494
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42 if (err < 0)
495 return err;
496 42 has_sps = 1;
497 }
498 }
499
500
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2390 if (pkt) {
501 // The current packet should be treated as a seek point for metadata
502 // insertion if any of:
503 // - It is the first packet in the stream.
504 // - It contains an SPS, indicating that a sequence might start here.
505 // - It is marked as containing a key frame.
506
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4722 seek_point = !ctx->done_first_au || has_sps ||
507
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2348 (pkt->flags & AV_PKT_FLAG_KEY);
508 } else {
509 16 seek_point = 0;
510 }
511
512
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2390 if (ctx->sei_user_data && seek_point) {
513 err = ff_cbs_sei_add_message(ctx->common.output, au, 1,
514 SEI_TYPE_USER_DATA_UNREGISTERED,
515 &ctx->sei_user_data_payload, NULL);
516 if (err < 0) {
517 av_log(bsf, AV_LOG_ERROR, "Failed to add user data SEI "
518 "message to access unit.\n");
519 return err;
520 }
521 }
522
523
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2390 if (ctx->delete_filler) {
524
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177 for (i = au->nb_units - 1; i >= 0; i--) {
525
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137 if (au->units[i].type == H264_NAL_FILLER_DATA) {
526 33 ff_cbs_delete_unit(au, i);
527 33 continue;
528 }
529 }
530
531 40 ff_cbs_sei_delete_message_type(ctx->common.output, au,
532 SEI_TYPE_FILLER_PAYLOAD);
533 }
534
535
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2390 if (pkt && ctx->display_orientation != BSF_ELEMENT_PASS) {
536 err = h264_metadata_handle_display_orientation(bsf, pkt, au,
537 seek_point);
538 if (err < 0)
539 return err;
540 }
541
542
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2390 if (pkt)
543 2374 ctx->done_first_au = 1;
544
545 2390 return 0;
546 }
547
548 static const CBSBSFType h264_metadata_type = {
549 .codec_id = AV_CODEC_ID_H264,
550 .fragment_name = "access unit",
551 .unit_name = "NAL unit",
552 .update_fragment = &h264_metadata_update_fragment,
553 };
554
555 16 static int h264_metadata_init(AVBSFContext *bsf)
556 {
557 16 H264MetadataContext *ctx = bsf->priv_data;
558
559
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16 if (ctx->sei_user_data) {
560 SEIRawUserDataUnregistered *udu = &ctx->sei_user_data_payload;
561 int i, j;
562
563 // Parse UUID. It must be a hex string of length 32, possibly
564 // containing '-'s between hex digits (which we ignore).
565 for (i = j = 0; j < 32 && i < 64 && ctx->sei_user_data[i]; i++) {
566 int c, v;
567 c = ctx->sei_user_data[i];
568 if (c == '-') {
569 continue;
570 } else if (av_isxdigit(c)) {
571 c = av_tolower(c);
572 v = (c <= '9' ? c - '0' : c - 'a' + 10);
573 } else {
574 break;
575 }
576 if (j & 1)
577 udu->uuid_iso_iec_11578[j / 2] |= v;
578 else
579 udu->uuid_iso_iec_11578[j / 2] = v << 4;
580 ++j;
581 }
582 if (j == 32 && ctx->sei_user_data[i] == '+') {
583 udu->data = (uint8_t*)ctx->sei_user_data + i + 1;
584 udu->data_length = strlen(udu->data) + 1;
585 } else {
586 av_log(bsf, AV_LOG_ERROR, "Invalid user data: "
587 "must be \"UUID+string\".\n");
588 return AVERROR(EINVAL);
589 }
590 }
591
592 16 return ff_cbs_bsf_generic_init(bsf, &h264_metadata_type);
593 }
594
595 #define OFFSET(x) offsetof(H264MetadataContext, x)
596 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_BSF_PARAM)
597 static const AVOption h264_metadata_options[] = {
598 BSF_ELEMENT_OPTIONS_PIR("aud", "Access Unit Delimiter NAL units",
599 aud, FLAGS),
600
601 { "sample_aspect_ratio", "Set sample aspect ratio (table E-1)",
602 OFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL,
603 { .dbl = 0.0 }, 0, 65535, FLAGS },
604
605 { "overscan_appropriate_flag", "Set VUI overscan appropriate flag",
606 OFFSET(overscan_appropriate_flag), AV_OPT_TYPE_INT,
607 { .i64 = -1 }, -1, 1, FLAGS },
608
609 { "video_format", "Set video format (table E-2)",
610 OFFSET(video_format), AV_OPT_TYPE_INT,
611 { .i64 = -1 }, -1, 7, FLAGS},
612 { "video_full_range_flag", "Set video full range flag",
613 OFFSET(video_full_range_flag), AV_OPT_TYPE_INT,
614 { .i64 = -1 }, -1, 1, FLAGS },
615 { "colour_primaries", "Set colour primaries (table E-3)",
616 OFFSET(colour_primaries), AV_OPT_TYPE_INT,
617 { .i64 = -1 }, -1, 255, FLAGS },
618 { "transfer_characteristics", "Set transfer characteristics (table E-4)",
619 OFFSET(transfer_characteristics), AV_OPT_TYPE_INT,
620 { .i64 = -1 }, -1, 255, FLAGS },
621 { "matrix_coefficients", "Set matrix coefficients (table E-5)",
622 OFFSET(matrix_coefficients), AV_OPT_TYPE_INT,
623 { .i64 = -1 }, -1, 255, FLAGS },
624
625 { "chroma_sample_loc_type", "Set chroma sample location type (figure E-1)",
626 OFFSET(chroma_sample_loc_type), AV_OPT_TYPE_INT,
627 { .i64 = -1 }, -1, 6, FLAGS },
628
629 { "tick_rate", "Set VUI tick rate (time_scale / num_units_in_tick)",
630 OFFSET(tick_rate), AV_OPT_TYPE_RATIONAL,
631 { .dbl = 0.0 }, 0, UINT_MAX, FLAGS },
632 { "fixed_frame_rate_flag", "Set VUI fixed frame rate flag",
633 OFFSET(fixed_frame_rate_flag), AV_OPT_TYPE_INT,
634 { .i64 = -1 }, -1, 1, FLAGS },
635 { "zero_new_constraint_set_flags", "Set constraint_set4_flag / constraint_set5_flag to zero",
636 OFFSET(zero_new_constraint_set_flags), AV_OPT_TYPE_BOOL,
637 { .i64 = 0 }, 0, 1, FLAGS },
638
639 { "crop_left", "Set left border crop offset",
640 OFFSET(crop_left), AV_OPT_TYPE_INT,
641 { .i64 = -1 }, -1, H264_MAX_WIDTH, FLAGS },
642 { "crop_right", "Set right border crop offset",
643 OFFSET(crop_right), AV_OPT_TYPE_INT,
644 { .i64 = -1 }, -1, H264_MAX_WIDTH, FLAGS },
645 { "crop_top", "Set top border crop offset",
646 OFFSET(crop_top), AV_OPT_TYPE_INT,
647 { .i64 = -1 }, -1, H264_MAX_HEIGHT, FLAGS },
648 { "crop_bottom", "Set bottom border crop offset",
649 OFFSET(crop_bottom), AV_OPT_TYPE_INT,
650 { .i64 = -1 }, -1, H264_MAX_HEIGHT, FLAGS },
651
652 { "sei_user_data", "Insert SEI user data (UUID+string)",
653 OFFSET(sei_user_data), AV_OPT_TYPE_STRING, { .str = NULL }, .flags = FLAGS },
654
655 { "delete_filler", "Delete all filler (both NAL and SEI)",
656 OFFSET(delete_filler), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS},
657
658 BSF_ELEMENT_OPTIONS_PIRE("display_orientation",
659 "Display orientation SEI",
660 display_orientation, FLAGS),
661
662 { "rotate", "Set rotation in display orientation SEI (anticlockwise angle in degrees)",
663 OFFSET(rotate), AV_OPT_TYPE_DOUBLE,
664 { .dbl = NAN }, -360.0, +360.0, FLAGS },
665 { "flip", "Set flip in display orientation SEI",
666 OFFSET(flip), AV_OPT_TYPE_FLAGS,
667 { .i64 = 0 }, 0, FLIP_HORIZONTAL | FLIP_VERTICAL, FLAGS, "flip" },
668 { "horizontal", "Set hor_flip",
669 0, AV_OPT_TYPE_CONST,
670 { .i64 = FLIP_HORIZONTAL }, .flags = FLAGS, .unit = "flip" },
671 { "vertical", "Set ver_flip",
672 0, AV_OPT_TYPE_CONST,
673 { .i64 = FLIP_VERTICAL }, .flags = FLAGS, .unit = "flip" },
674
675 { "level", "Set level (table A-1)",
676 OFFSET(level), AV_OPT_TYPE_INT,
677 { .i64 = LEVEL_UNSET }, LEVEL_UNSET, 0xff, FLAGS, "level" },
678 { "auto", "Attempt to guess level from stream properties",
679 0, AV_OPT_TYPE_CONST,
680 { .i64 = LEVEL_AUTO }, .flags = FLAGS, .unit = "level" },
681 #define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
682 { .i64 = value }, .flags = FLAGS, .unit = "level"
683 { LEVEL("1", 10) },
684 { LEVEL("1b", 9) },
685 { LEVEL("1.1", 11) },
686 { LEVEL("1.2", 12) },
687 { LEVEL("1.3", 13) },
688 { LEVEL("2", 20) },
689 { LEVEL("2.1", 21) },
690 { LEVEL("2.2", 22) },
691 { LEVEL("3", 30) },
692 { LEVEL("3.1", 31) },
693 { LEVEL("3.2", 32) },
694 { LEVEL("4", 40) },
695 { LEVEL("4.1", 41) },
696 { LEVEL("4.2", 42) },
697 { LEVEL("5", 50) },
698 { LEVEL("5.1", 51) },
699 { LEVEL("5.2", 52) },
700 { LEVEL("6", 60) },
701 { LEVEL("6.1", 61) },
702 { LEVEL("6.2", 62) },
703 #undef LEVEL
704
705 { NULL }
706 };
707
708 static const AVClass h264_metadata_class = {
709 .class_name = "h264_metadata_bsf",
710 .item_name = av_default_item_name,
711 .option = h264_metadata_options,
712 .version = LIBAVUTIL_VERSION_INT,
713 };
714
715 static const enum AVCodecID h264_metadata_codec_ids[] = {
716 AV_CODEC_ID_H264, AV_CODEC_ID_NONE,
717 };
718
719 const AVBitStreamFilter ff_h264_metadata_bsf = {
720 .name = "h264_metadata",
721 .priv_data_size = sizeof(H264MetadataContext),
722 .priv_class = &h264_metadata_class,
723 .init = &h264_metadata_init,
724 .close = &ff_cbs_bsf_generic_close,
725 .filter = &ff_cbs_bsf_generic_filter,
726 .codec_ids = h264_metadata_codec_ids,
727 };
728