GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/h264_metadata_bsf.c Lines: 55 245 22.4 %
Date: 2021-04-20 04:37:23 Branches: 54 232 23.3 %

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
65
    int crop_left;
66
    int crop_right;
67
    int crop_top;
68
    int crop_bottom;
69
70
    const char *sei_user_data;
71
    SEIRawUserDataUnregistered sei_user_data_payload;
72
73
    int delete_filler;
74
75
    int display_orientation;
76
    double rotate;
77
    int flip;
78
    H264RawSEIDisplayOrientation display_orientation_payload;
79
80
    int level;
81
} H264MetadataContext;
82
83
84
static int h264_metadata_insert_aud(AVBSFContext *bsf,
85
                                    CodedBitstreamFragment *au)
86
{
87
    H264MetadataContext *ctx = bsf->priv_data;
88
    int primary_pic_type_mask = 0xff;
89
    int err, i, j;
90
91
    static const int primary_pic_type_table[] = {
92
        0x084, // 2, 7
93
        0x0a5, // 0, 2, 5, 7
94
        0x0e7, // 0, 1, 2, 5, 6, 7
95
        0x210, // 4, 9
96
        0x318, // 3, 4, 8, 9
97
        0x294, // 2, 4, 7, 9
98
        0x3bd, // 0, 2, 3, 4, 5, 7, 8, 9
99
        0x3ff, // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
100
    };
101
102
    for (i = 0; i < au->nb_units; i++) {
103
        if (au->units[i].type == H264_NAL_SLICE ||
104
            au->units[i].type == H264_NAL_IDR_SLICE) {
105
            H264RawSlice *slice = au->units[i].content;
106
            for (j = 0; j < FF_ARRAY_ELEMS(primary_pic_type_table); j++) {
107
                if (!(primary_pic_type_table[j] &
108
                      (1 << slice->header.slice_type)))
109
                    primary_pic_type_mask &= ~(1 << j);
110
            }
111
        }
112
    }
113
    for (j = 0; j < FF_ARRAY_ELEMS(primary_pic_type_table); j++)
114
        if (primary_pic_type_mask & (1 << j))
115
            break;
116
    if (j >= FF_ARRAY_ELEMS(primary_pic_type_table)) {
117
        av_log(bsf, AV_LOG_ERROR, "No usable primary_pic_type: "
118
               "invalid slice types?\n");
119
        return AVERROR_INVALIDDATA;
120
    }
121
122
    ctx->aud_nal = (H264RawAUD) {
123
        .nal_unit_header.nal_unit_type = H264_NAL_AUD,
124
        .primary_pic_type = j,
125
    };
126
127
    err = ff_cbs_insert_unit_content(au, 0, H264_NAL_AUD,
128
                                     &ctx->aud_nal, NULL);
129
    if (err < 0) {
130
        av_log(bsf, AV_LOG_ERROR, "Failed to insert AUD.\n");
131
        return err;
132
    }
133
134
    return 0;
135
}
136
137
42
static int h264_metadata_update_sps(AVBSFContext *bsf,
138
                                    H264RawSPS *sps)
139
{
140
42
    H264MetadataContext *ctx = bsf->priv_data;
141
42
    int need_vui = 0;
142
    int crop_unit_x, crop_unit_y;
143
144

42
    if (ctx->sample_aspect_ratio.num && ctx->sample_aspect_ratio.den) {
145
        // Table E-1.
146
        static const AVRational sar_idc[] = {
147
            {   0,  0 }, // Unspecified (never written here).
148
            {   1,  1 }, {  12, 11 }, {  10, 11 }, {  16, 11 },
149
            {  40, 33 }, {  24, 11 }, {  20, 11 }, {  32, 11 },
150
            {  80, 33 }, {  18, 11 }, {  15, 11 }, {  64, 33 },
151
            { 160, 99 }, {   4,  3 }, {   3,  2 }, {   2,  1 },
152
        };
153
        int num, den, i;
154
155
        av_reduce(&num, &den, ctx->sample_aspect_ratio.num,
156
                  ctx->sample_aspect_ratio.den, 65535);
157
158
        for (i = 1; i < FF_ARRAY_ELEMS(sar_idc); i++) {
159
            if (num == sar_idc[i].num &&
160
                den == sar_idc[i].den)
161
                break;
162
        }
163
        if (i == FF_ARRAY_ELEMS(sar_idc)) {
164
            sps->vui.aspect_ratio_idc = 255;
165
            sps->vui.sar_width  = num;
166
            sps->vui.sar_height = den;
167
        } else {
168
            sps->vui.aspect_ratio_idc = i;
169
        }
170
        sps->vui.aspect_ratio_info_present_flag = 1;
171
        need_vui = 1;
172
    }
173
174
#define SET_VUI_FIELD(field) do { \
175
        if (ctx->field >= 0) { \
176
            sps->vui.field = ctx->field; \
177
            need_vui = 1; \
178
        } \
179
    } while (0)
180
181
42
    if (ctx->overscan_appropriate_flag >= 0) {
182
        SET_VUI_FIELD(overscan_appropriate_flag);
183
        sps->vui.overscan_info_present_flag = 1;
184
    }
185
186
42
    if (ctx->video_format             >= 0 ||
187
42
        ctx->video_full_range_flag    >= 0 ||
188
42
        ctx->colour_primaries         >= 0 ||
189
42
        ctx->transfer_characteristics >= 0 ||
190
42
        ctx->matrix_coefficients      >= 0) {
191
192
        SET_VUI_FIELD(video_format);
193
194
        SET_VUI_FIELD(video_full_range_flag);
195
196
        if (ctx->colour_primaries         >= 0 ||
197
            ctx->transfer_characteristics >= 0 ||
198
            ctx->matrix_coefficients      >= 0) {
199
200
            SET_VUI_FIELD(colour_primaries);
201
            SET_VUI_FIELD(transfer_characteristics);
202
            SET_VUI_FIELD(matrix_coefficients);
203
204
            sps->vui.colour_description_present_flag = 1;
205
        }
206
        sps->vui.video_signal_type_present_flag = 1;
207
    }
208
209
42
    if (ctx->chroma_sample_loc_type >= 0) {
210
        sps->vui.chroma_sample_loc_type_top_field =
211
            ctx->chroma_sample_loc_type;
212
        sps->vui.chroma_sample_loc_type_bottom_field =
213
            ctx->chroma_sample_loc_type;
214
        sps->vui.chroma_loc_info_present_flag = 1;
215
        need_vui = 1;
216
    }
217
218

42
    if (ctx->tick_rate.num && ctx->tick_rate.den) {
219
        int num, den;
220
221
        av_reduce(&num, &den, ctx->tick_rate.num, ctx->tick_rate.den,
222
                  UINT32_MAX > INT_MAX ? UINT32_MAX : INT_MAX);
223
224
        sps->vui.time_scale        = num;
225
        sps->vui.num_units_in_tick = den;
226
227
        sps->vui.timing_info_present_flag = 1;
228
        need_vui = 1;
229
    }
230
42
    SET_VUI_FIELD(fixed_frame_rate_flag);
231
232

42
    if (sps->separate_colour_plane_flag || sps->chroma_format_idc == 0) {
233
        crop_unit_x = 1;
234
        crop_unit_y = 2 - sps->frame_mbs_only_flag;
235
    } else {
236
42
        crop_unit_x = 1 + (sps->chroma_format_idc < 3);
237
42
        crop_unit_y = (1 + (sps->chroma_format_idc < 2)) *
238
42
                       (2 - sps->frame_mbs_only_flag);
239
    }
240
#define CROP(border, unit) do { \
241
        if (ctx->crop_ ## border >= 0) { \
242
            if (ctx->crop_ ## border % unit != 0) { \
243
                av_log(bsf, AV_LOG_ERROR, "Invalid value for crop_%s: " \
244
                       "must be a multiple of %d.\n", #border, unit); \
245
                return AVERROR(EINVAL); \
246
            } \
247
            sps->frame_crop_ ## border ## _offset = \
248
                  ctx->crop_ ## border / unit; \
249
            sps->frame_cropping_flag = 1; \
250
        } \
251
    } while (0)
252

42
    CROP(left,   crop_unit_x);
253

42
    CROP(right,  crop_unit_x);
254

42
    CROP(top,    crop_unit_y);
255

42
    CROP(bottom, crop_unit_y);
256
#undef CROP
257
258
42
    if (ctx->level != LEVEL_UNSET) {
259
        int level_idc;
260
261
        if (ctx->level == LEVEL_AUTO) {
262
            const H264LevelDescriptor *desc;
263
            int64_t bit_rate;
264
            int width, height, dpb_frames;
265
            int framerate;
266
267
            if (sps->vui.nal_hrd_parameters_present_flag) {
268
                bit_rate = (sps->vui.nal_hrd_parameters.bit_rate_value_minus1[0] + 1) *
269
                    (INT64_C(1) << (sps->vui.nal_hrd_parameters.bit_rate_scale + 6));
270
            } else if (sps->vui.vcl_hrd_parameters_present_flag) {
271
                bit_rate = (sps->vui.vcl_hrd_parameters.bit_rate_value_minus1[0] + 1) *
272
                    (INT64_C(1) << (sps->vui.vcl_hrd_parameters.bit_rate_scale + 6));
273
                // Adjust for VCL vs. NAL limits.
274
                bit_rate = bit_rate * 6 / 5;
275
            } else {
276
                bit_rate = 0;
277
            }
278
279
            // Don't use max_dec_frame_buffering if it is only inferred.
280
            dpb_frames = sps->vui.bitstream_restriction_flag ?
281
                sps->vui.max_dec_frame_buffering : H264_MAX_DPB_FRAMES;
282
283
            width  = 16 * (sps->pic_width_in_mbs_minus1 + 1);
284
            height = 16 * (sps->pic_height_in_map_units_minus1 + 1) *
285
                (2 - sps->frame_mbs_only_flag);
286
287
            if (sps->vui.timing_info_present_flag)
288
                framerate = sps->vui.time_scale / sps->vui.num_units_in_tick / 2;
289
            else
290
                framerate = 0;
291
292
            desc = ff_h264_guess_level(sps->profile_idc, bit_rate, framerate,
293
                                       width, height, dpb_frames);
294
            if (desc) {
295
                level_idc = desc->level_idc;
296
            } else {
297
                av_log(bsf, AV_LOG_WARNING, "Stream does not appear to "
298
                       "conform to any level: using level 6.2.\n");
299
                level_idc = 62;
300
            }
301
        } else {
302
            level_idc = ctx->level;
303
        }
304
305
        if (level_idc == 9) {
306
            if (sps->profile_idc == 66 ||
307
                sps->profile_idc == 77 ||
308
                sps->profile_idc == 88) {
309
                sps->level_idc = 11;
310
                sps->constraint_set3_flag = 1;
311
            } else {
312
                sps->level_idc = 9;
313
            }
314
        } else {
315
            sps->level_idc = level_idc;
316
        }
317
    }
318
319
42
    if (need_vui)
320
        sps->vui_parameters_present_flag = 1;
321
322
42
    return 0;
323
}
324
325
static int h264_metadata_handle_display_orientation(AVBSFContext *bsf,
326
                                                    AVPacket *pkt,
327
                                                    CodedBitstreamFragment *au,
328
                                                    int seek_point)
329
{
330
    H264MetadataContext *ctx = bsf->priv_data;
331
    SEIRawMessage *message;
332
    int err;
333
334
    message = NULL;
335
    while (ff_cbs_sei_find_message(ctx->common.output, au,
336
                                   SEI_TYPE_DISPLAY_ORIENTATION,
337
                                   &message) == 0) {
338
        H264RawSEIDisplayOrientation *disp = message->payload;
339
        int32_t *matrix;
340
341
        matrix = av_malloc(9 * sizeof(int32_t));
342
        if (!matrix)
343
            return AVERROR(ENOMEM);
344
345
        av_display_rotation_set(matrix,
346
                                disp->anticlockwise_rotation *
347
                                180.0 / 65536.0);
348
        av_display_matrix_flip(matrix, disp->hor_flip, disp->ver_flip);
349
350
        // If there are multiple display orientation messages in an
351
        // access unit, then the last one added to the packet (i.e.
352
        // the first one in the access unit) will prevail.
353
        err = av_packet_add_side_data(pkt, AV_PKT_DATA_DISPLAYMATRIX,
354
                                      (uint8_t*)matrix,
355
                                      9 * sizeof(int32_t));
356
        if (err < 0) {
357
            av_log(bsf, AV_LOG_ERROR, "Failed to attach extracted "
358
                   "displaymatrix side data to packet.\n");
359
            av_free(matrix);
360
            return AVERROR(ENOMEM);
361
        }
362
    }
363
364
    if (ctx->display_orientation == BSF_ELEMENT_REMOVE ||
365
        ctx->display_orientation == BSF_ELEMENT_INSERT) {
366
        ff_cbs_sei_delete_message_type(ctx->common.output, au,
367
                                       SEI_TYPE_DISPLAY_ORIENTATION);
368
    }
369
370
    if (ctx->display_orientation == BSF_ELEMENT_INSERT) {
371
        H264RawSEIDisplayOrientation *disp =
372
            &ctx->display_orientation_payload;
373
        uint8_t *data;
374
        buffer_size_t size;
375
        int write = 0;
376
377
        data = av_packet_get_side_data(pkt, AV_PKT_DATA_DISPLAYMATRIX, &size);
378
        if (data && size >= 9 * sizeof(int32_t)) {
379
            int32_t matrix[9];
380
            double dmatrix[9];
381
            int hflip, vflip, i;
382
            double scale_x, scale_y, angle;
383
384
            memcpy(matrix, data, sizeof(matrix));
385
386
            for (i = 0; i < 9; i++)
387
                dmatrix[i] = matrix[i] / 65536.0;
388
389
            // Extract scale factors.
390
            scale_x = hypot(dmatrix[0], dmatrix[3]);
391
            scale_y = hypot(dmatrix[1], dmatrix[4]);
392
393
            // Select flips to make the main diagonal positive.
394
            hflip = dmatrix[0] < 0.0;
395
            vflip = dmatrix[4] < 0.0;
396
            if (hflip)
397
                scale_x = -scale_x;
398
            if (vflip)
399
                scale_y = -scale_y;
400
401
            // Rescale.
402
            for (i = 0; i < 9; i += 3) {
403
                dmatrix[i]     /= scale_x;
404
                dmatrix[i + 1] /= scale_y;
405
            }
406
407
            // Extract rotation.
408
            angle = atan2(dmatrix[3], dmatrix[0]);
409
410
            if (!(angle >= -M_PI && angle <= M_PI) ||
411
                matrix[2] != 0.0 || matrix[5] != 0.0 ||
412
                matrix[6] != 0.0 || matrix[7] != 0.0) {
413
                av_log(bsf, AV_LOG_WARNING, "Input display matrix is not "
414
                       "representable in H.264 parameters.\n");
415
            } else {
416
                disp->hor_flip = hflip;
417
                disp->ver_flip = vflip;
418
                disp->anticlockwise_rotation =
419
                    (uint16_t)rint((angle >= 0.0 ? angle
420
                                                 : angle + 2 * M_PI) *
421
                                   32768.0 / M_PI);
422
                write = 1;
423
            }
424
        }
425
426
        if (seek_point) {
427
            if (!isnan(ctx->rotate)) {
428
                disp->anticlockwise_rotation =
429
                    (uint16_t)rint((ctx->rotate >= 0.0 ? ctx->rotate
430
                                                       : ctx->rotate + 360.0) *
431
                                   65536.0 / 360.0);
432
                write = 1;
433
            }
434
            if (ctx->flip) {
435
                disp->hor_flip = !!(ctx->flip & FLIP_HORIZONTAL);
436
                disp->ver_flip = !!(ctx->flip & FLIP_VERTICAL);
437
                write = 1;
438
            }
439
        }
440
441
        if (write) {
442
            disp->display_orientation_repetition_period = 1;
443
444
            err = ff_cbs_sei_add_message(ctx->common.output, au, 1,
445
                                         SEI_TYPE_DISPLAY_ORIENTATION,
446
                                         disp, NULL);
447
            if (err < 0) {
448
                av_log(bsf, AV_LOG_ERROR, "Failed to add display orientation "
449
                       "SEI message to access unit.\n");
450
                return err;
451
            }
452
        }
453
    }
454
455
    return 0;
456
}
457
458
2390
static int h264_metadata_update_fragment(AVBSFContext *bsf, AVPacket *pkt,
459
                                         CodedBitstreamFragment *au)
460
{
461
2390
    H264MetadataContext *ctx = bsf->priv_data;
462
    int err, i, has_sps, seek_point;
463
464
    // If an AUD is present, it must be the first NAL unit.
465

2390
    if (au->nb_units && au->units[0].type == H264_NAL_AUD) {
466
234
        if (ctx->aud == BSF_ELEMENT_REMOVE)
467
39
            ff_cbs_delete_unit(au, 0);
468
    } else {
469

2156
        if (pkt && ctx->aud == BSF_ELEMENT_INSERT) {
470
            err = h264_metadata_insert_aud(bsf, au);
471
            if (err < 0)
472
                return err;
473
        }
474
    }
475
476
2390
    has_sps = 0;
477
9143
    for (i = 0; i < au->nb_units; i++) {
478
6753
        if (au->units[i].type == H264_NAL_SPS) {
479
42
            err = h264_metadata_update_sps(bsf, au->units[i].content);
480
42
            if (err < 0)
481
                return err;
482
42
            has_sps = 1;
483
        }
484
    }
485
486
2390
    if (pkt) {
487
        // The current packet should be treated as a seek point for metadata
488
        // insertion if any of:
489
        // - It is the first packet in the stream.
490
        // - It contains an SPS, indicating that a sequence might start here.
491
        // - It is marked as containing a key frame.
492

4722
        seek_point = !ctx->done_first_au || has_sps ||
493
2348
            (pkt->flags & AV_PKT_FLAG_KEY);
494
    } else {
495
16
        seek_point = 0;
496
    }
497
498

2390
    if (ctx->sei_user_data && seek_point) {
499
        err = ff_cbs_sei_add_message(ctx->common.output, au, 1,
500
                                     SEI_TYPE_USER_DATA_UNREGISTERED,
501
                                     &ctx->sei_user_data_payload, NULL);
502
        if (err < 0) {
503
            av_log(bsf, AV_LOG_ERROR, "Failed to add user data SEI "
504
                   "message to access unit.\n");
505
            return err;
506
        }
507
    }
508
509
2390
    if (ctx->delete_filler) {
510
177
        for (i = au->nb_units - 1; i >= 0; i--) {
511
137
            if (au->units[i].type == H264_NAL_FILLER_DATA) {
512
33
                ff_cbs_delete_unit(au, i);
513
33
                continue;
514
            }
515
        }
516
517
40
        ff_cbs_sei_delete_message_type(ctx->common.output, au,
518
                                       SEI_TYPE_FILLER_PAYLOAD);
519
    }
520
521

2390
    if (pkt && ctx->display_orientation != BSF_ELEMENT_PASS) {
522
        err = h264_metadata_handle_display_orientation(bsf, pkt, au,
523
                                                       seek_point);
524
        if (err < 0)
525
            return err;
526
    }
527
528
2390
    if (pkt)
529
2374
        ctx->done_first_au = 1;
530
531
2390
    return 0;
532
}
533
534
static const CBSBSFType h264_metadata_type = {
535
    .codec_id        = AV_CODEC_ID_H264,
536
    .fragment_name   = "access unit",
537
    .unit_name       = "NAL unit",
538
    .update_fragment = &h264_metadata_update_fragment,
539
};
540
541
16
static int h264_metadata_init(AVBSFContext *bsf)
542
{
543
16
    H264MetadataContext *ctx = bsf->priv_data;
544
545
16
    if (ctx->sei_user_data) {
546
        SEIRawUserDataUnregistered *udu = &ctx->sei_user_data_payload;
547
        int i, j;
548
549
        // Parse UUID.  It must be a hex string of length 32, possibly
550
        // containing '-'s between hex digits (which we ignore).
551
        for (i = j = 0; j < 32 && i < 64 && ctx->sei_user_data[i]; i++) {
552
            int c, v;
553
            c = ctx->sei_user_data[i];
554
            if (c == '-') {
555
                continue;
556
            } else if (av_isxdigit(c)) {
557
                c = av_tolower(c);
558
                v = (c <= '9' ? c - '0' : c - 'a' + 10);
559
            } else {
560
                break;
561
            }
562
            if (j & 1)
563
                udu->uuid_iso_iec_11578[j / 2] |= v;
564
            else
565
                udu->uuid_iso_iec_11578[j / 2] = v << 4;
566
            ++j;
567
        }
568
        if (j == 32 && ctx->sei_user_data[i] == '+') {
569
            udu->data = (uint8_t*)ctx->sei_user_data + i + 1;
570
            udu->data_length = strlen(udu->data) + 1;
571
        } else {
572
            av_log(bsf, AV_LOG_ERROR, "Invalid user data: "
573
                   "must be \"UUID+string\".\n");
574
            return AVERROR(EINVAL);
575
        }
576
    }
577
578
16
    return ff_cbs_bsf_generic_init(bsf, &h264_metadata_type);
579
}
580
581
#define OFFSET(x) offsetof(H264MetadataContext, x)
582
#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_BSF_PARAM)
583
static const AVOption h264_metadata_options[] = {
584
    BSF_ELEMENT_OPTIONS_PIR("aud", "Access Unit Delimiter NAL units",
585
                            aud, FLAGS),
586
587
    { "sample_aspect_ratio", "Set sample aspect ratio (table E-1)",
588
        OFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL,
589
        { .dbl = 0.0 }, 0, 65535, FLAGS },
590
591
    { "overscan_appropriate_flag", "Set VUI overscan appropriate flag",
592
        OFFSET(overscan_appropriate_flag), AV_OPT_TYPE_INT,
593
        { .i64 = -1 }, -1, 1, FLAGS },
594
595
    { "video_format", "Set video format (table E-2)",
596
        OFFSET(video_format), AV_OPT_TYPE_INT,
597
        { .i64 = -1 }, -1, 7, FLAGS},
598
    { "video_full_range_flag", "Set video full range flag",
599
        OFFSET(video_full_range_flag), AV_OPT_TYPE_INT,
600
        { .i64 = -1 }, -1, 1, FLAGS },
601
    { "colour_primaries", "Set colour primaries (table E-3)",
602
        OFFSET(colour_primaries), AV_OPT_TYPE_INT,
603
        { .i64 = -1 }, -1, 255, FLAGS },
604
    { "transfer_characteristics", "Set transfer characteristics (table E-4)",
605
        OFFSET(transfer_characteristics), AV_OPT_TYPE_INT,
606
        { .i64 = -1 }, -1, 255, FLAGS },
607
    { "matrix_coefficients", "Set matrix coefficients (table E-5)",
608
        OFFSET(matrix_coefficients), AV_OPT_TYPE_INT,
609
        { .i64 = -1 }, -1, 255, FLAGS },
610
611
    { "chroma_sample_loc_type", "Set chroma sample location type (figure E-1)",
612
        OFFSET(chroma_sample_loc_type), AV_OPT_TYPE_INT,
613
        { .i64 = -1 }, -1, 6, FLAGS },
614
615
    { "tick_rate", "Set VUI tick rate (num_units_in_tick / time_scale)",
616
        OFFSET(tick_rate), AV_OPT_TYPE_RATIONAL,
617
        { .dbl = 0.0 }, 0, UINT_MAX, FLAGS },
618
    { "fixed_frame_rate_flag", "Set VUI fixed frame rate flag",
619
        OFFSET(fixed_frame_rate_flag), AV_OPT_TYPE_INT,
620
        { .i64 = -1 }, -1, 1, FLAGS },
621
622
    { "crop_left", "Set left border crop offset",
623
        OFFSET(crop_left), AV_OPT_TYPE_INT,
624
        { .i64 = -1 }, -1, H264_MAX_WIDTH, FLAGS },
625
    { "crop_right", "Set right border crop offset",
626
        OFFSET(crop_right), AV_OPT_TYPE_INT,
627
        { .i64 = -1 }, -1, H264_MAX_WIDTH, FLAGS },
628
    { "crop_top", "Set top border crop offset",
629
        OFFSET(crop_top), AV_OPT_TYPE_INT,
630
        { .i64 = -1 }, -1, H264_MAX_HEIGHT, FLAGS },
631
    { "crop_bottom", "Set bottom border crop offset",
632
        OFFSET(crop_bottom), AV_OPT_TYPE_INT,
633
        { .i64 = -1 }, -1, H264_MAX_HEIGHT, FLAGS },
634
635
    { "sei_user_data", "Insert SEI user data (UUID+string)",
636
        OFFSET(sei_user_data), AV_OPT_TYPE_STRING, { .str = NULL }, .flags = FLAGS },
637
638
    { "delete_filler", "Delete all filler (both NAL and SEI)",
639
        OFFSET(delete_filler), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS},
640
641
    BSF_ELEMENT_OPTIONS_PIRE("display_orientation",
642
                             "Display orientation SEI",
643
                             display_orientation, FLAGS),
644
645
    { "rotate", "Set rotation in display orientation SEI (anticlockwise angle in degrees)",
646
        OFFSET(rotate), AV_OPT_TYPE_DOUBLE,
647
        { .dbl = NAN }, -360.0, +360.0, FLAGS },
648
    { "flip", "Set flip in display orientation SEI",
649
        OFFSET(flip), AV_OPT_TYPE_FLAGS,
650
        { .i64 = 0 }, 0, FLIP_HORIZONTAL | FLIP_VERTICAL, FLAGS, "flip" },
651
    { "horizontal", "Set hor_flip",
652
        0, AV_OPT_TYPE_CONST,
653
        { .i64 = FLIP_HORIZONTAL }, .flags = FLAGS, .unit = "flip" },
654
    { "vertical",   "Set ver_flip",
655
        0, AV_OPT_TYPE_CONST,
656
        { .i64 = FLIP_VERTICAL },   .flags = FLAGS, .unit = "flip" },
657
658
    { "level", "Set level (table A-1)",
659
        OFFSET(level), AV_OPT_TYPE_INT,
660
        { .i64 = LEVEL_UNSET }, LEVEL_UNSET, 0xff, FLAGS, "level" },
661
    { "auto", "Attempt to guess level from stream properties",
662
        0, AV_OPT_TYPE_CONST,
663
        { .i64 = LEVEL_AUTO }, .flags = FLAGS, .unit = "level" },
664
#define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
665
        { .i64 = value },      .flags = FLAGS, .unit = "level"
666
    { LEVEL("1",   10) },
667
    { LEVEL("1b",   9) },
668
    { LEVEL("1.1", 11) },
669
    { LEVEL("1.2", 12) },
670
    { LEVEL("1.3", 13) },
671
    { LEVEL("2",   20) },
672
    { LEVEL("2.1", 21) },
673
    { LEVEL("2.2", 22) },
674
    { LEVEL("3",   30) },
675
    { LEVEL("3.1", 31) },
676
    { LEVEL("3.2", 32) },
677
    { LEVEL("4",   40) },
678
    { LEVEL("4.1", 41) },
679
    { LEVEL("4.2", 42) },
680
    { LEVEL("5",   50) },
681
    { LEVEL("5.1", 51) },
682
    { LEVEL("5.2", 52) },
683
    { LEVEL("6",   60) },
684
    { LEVEL("6.1", 61) },
685
    { LEVEL("6.2", 62) },
686
#undef LEVEL
687
688
    { NULL }
689
};
690
691
static const AVClass h264_metadata_class = {
692
    .class_name = "h264_metadata_bsf",
693
    .item_name  = av_default_item_name,
694
    .option     = h264_metadata_options,
695
    .version    = LIBAVUTIL_VERSION_INT,
696
};
697
698
static const enum AVCodecID h264_metadata_codec_ids[] = {
699
    AV_CODEC_ID_H264, AV_CODEC_ID_NONE,
700
};
701
702
const AVBitStreamFilter ff_h264_metadata_bsf = {
703
    .name           = "h264_metadata",
704
    .priv_data_size = sizeof(H264MetadataContext),
705
    .priv_class     = &h264_metadata_class,
706
    .init           = &h264_metadata_init,
707
    .close          = &ff_cbs_bsf_generic_close,
708
    .filter         = &ff_cbs_bsf_generic_filter,
709
    .codec_ids      = h264_metadata_codec_ids,
710
};