GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/h264_metadata_bsf.c Lines: 77 289 26.6 %
Date: 2019-11-22 03:34:36 Branches: 48 250 19.2 %

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_h264.h"
27
#include "h264.h"
28
#include "h264_levels.h"
29
#include "h264_sei.h"
30
31
enum {
32
    PASS,
33
    INSERT,
34
    REMOVE,
35
    EXTRACT,
36
};
37
38
enum {
39
    FLIP_HORIZONTAL = 1,
40
    FLIP_VERTICAL   = 2,
41
};
42
43
enum {
44
    LEVEL_UNSET = -2,
45
    LEVEL_AUTO  = -1,
46
};
47
48
typedef struct H264MetadataContext {
49
    const AVClass *class;
50
51
    CodedBitstreamContext *cbc;
52
    CodedBitstreamFragment access_unit;
53
54
    int done_first_au;
55
56
    int aud;
57
58
    AVRational sample_aspect_ratio;
59
60
    int overscan_appropriate_flag;
61
62
    int video_format;
63
    int video_full_range_flag;
64
    int colour_primaries;
65
    int transfer_characteristics;
66
    int matrix_coefficients;
67
68
    int chroma_sample_loc_type;
69
70
    AVRational tick_rate;
71
    int fixed_frame_rate_flag;
72
73
    int crop_left;
74
    int crop_right;
75
    int crop_top;
76
    int crop_bottom;
77
78
    const char *sei_user_data;
79
80
    int delete_filler;
81
82
    int display_orientation;
83
    double rotate;
84
    int flip;
85
86
    int level;
87
} H264MetadataContext;
88
89
90
40
static int h264_metadata_update_sps(AVBSFContext *bsf,
91
                                    H264RawSPS *sps)
92
{
93
40
    H264MetadataContext *ctx = bsf->priv_data;
94
40
    int need_vui = 0;
95
    int crop_unit_x, crop_unit_y;
96
97

40
    if (ctx->sample_aspect_ratio.num && ctx->sample_aspect_ratio.den) {
98
        // Table E-1.
99
        static const AVRational sar_idc[] = {
100
            {   0,  0 }, // Unspecified (never written here).
101
            {   1,  1 }, {  12, 11 }, {  10, 11 }, {  16, 11 },
102
            {  40, 33 }, {  24, 11 }, {  20, 11 }, {  32, 11 },
103
            {  80, 33 }, {  18, 11 }, {  15, 11 }, {  64, 33 },
104
            { 160, 99 }, {   4,  3 }, {   3,  2 }, {   2,  1 },
105
        };
106
        int num, den, i;
107
108
        av_reduce(&num, &den, ctx->sample_aspect_ratio.num,
109
                  ctx->sample_aspect_ratio.den, 65535);
110
111
        for (i = 1; i < FF_ARRAY_ELEMS(sar_idc); i++) {
112
            if (num == sar_idc[i].num &&
113
                den == sar_idc[i].den)
114
                break;
115
        }
116
        if (i == FF_ARRAY_ELEMS(sar_idc)) {
117
            sps->vui.aspect_ratio_idc = 255;
118
            sps->vui.sar_width  = num;
119
            sps->vui.sar_height = den;
120
        } else {
121
            sps->vui.aspect_ratio_idc = i;
122
        }
123
        sps->vui.aspect_ratio_info_present_flag = 1;
124
        need_vui = 1;
125
    }
126
127
#define SET_VUI_FIELD(field) do { \
128
        if (ctx->field >= 0) { \
129
            sps->vui.field = ctx->field; \
130
            need_vui = 1; \
131
        } \
132
    } while (0)
133
134
40
    if (ctx->overscan_appropriate_flag >= 0) {
135
        SET_VUI_FIELD(overscan_appropriate_flag);
136
        sps->vui.overscan_info_present_flag = 1;
137
    }
138
139
40
    if (ctx->video_format             >= 0 ||
140
40
        ctx->video_full_range_flag    >= 0 ||
141
40
        ctx->colour_primaries         >= 0 ||
142
40
        ctx->transfer_characteristics >= 0 ||
143
40
        ctx->matrix_coefficients      >= 0) {
144
145
        SET_VUI_FIELD(video_format);
146
147
        SET_VUI_FIELD(video_full_range_flag);
148
149
        if (ctx->colour_primaries         >= 0 ||
150
            ctx->transfer_characteristics >= 0 ||
151
            ctx->matrix_coefficients      >= 0) {
152
153
            SET_VUI_FIELD(colour_primaries);
154
            SET_VUI_FIELD(transfer_characteristics);
155
            SET_VUI_FIELD(matrix_coefficients);
156
157
            sps->vui.colour_description_present_flag = 1;
158
        }
159
        sps->vui.video_signal_type_present_flag = 1;
160
    }
161
162
40
    if (ctx->chroma_sample_loc_type >= 0) {
163
        sps->vui.chroma_sample_loc_type_top_field =
164
            ctx->chroma_sample_loc_type;
165
        sps->vui.chroma_sample_loc_type_bottom_field =
166
            ctx->chroma_sample_loc_type;
167
        sps->vui.chroma_loc_info_present_flag = 1;
168
        need_vui = 1;
169
    }
170
171

40
    if (ctx->tick_rate.num && ctx->tick_rate.den) {
172
        int num, den;
173
174
        av_reduce(&num, &den, ctx->tick_rate.num, ctx->tick_rate.den,
175
                  UINT32_MAX > INT_MAX ? UINT32_MAX : INT_MAX);
176
177
        sps->vui.time_scale        = num;
178
        sps->vui.num_units_in_tick = den;
179
180
        sps->vui.timing_info_present_flag = 1;
181
        need_vui = 1;
182
    }
183
40
    SET_VUI_FIELD(fixed_frame_rate_flag);
184
185

40
    if (sps->separate_colour_plane_flag || sps->chroma_format_idc == 0) {
186
        crop_unit_x = 1;
187
        crop_unit_y = 2 - sps->frame_mbs_only_flag;
188
    } else {
189
40
        crop_unit_x = 1 + (sps->chroma_format_idc < 3);
190
40
        crop_unit_y = (1 + (sps->chroma_format_idc < 2)) *
191
40
                       (2 - sps->frame_mbs_only_flag);
192
    }
193
#define CROP(border, unit) do { \
194
        if (ctx->crop_ ## border >= 0) { \
195
            if (ctx->crop_ ## border % unit != 0) { \
196
                av_log(bsf, AV_LOG_ERROR, "Invalid value for crop_%s: " \
197
                       "must be a multiple of %d.\n", #border, unit); \
198
                return AVERROR(EINVAL); \
199
            } \
200
            sps->frame_crop_ ## border ## _offset = \
201
                  ctx->crop_ ## border / unit; \
202
            sps->frame_cropping_flag = 1; \
203
        } \
204
    } while (0)
205

40
    CROP(left,   crop_unit_x);
206

40
    CROP(right,  crop_unit_x);
207

40
    CROP(top,    crop_unit_y);
208

40
    CROP(bottom, crop_unit_y);
209
#undef CROP
210
211
40
    if (ctx->level != LEVEL_UNSET) {
212
        int level_idc;
213
214
        if (ctx->level == LEVEL_AUTO) {
215
            const H264LevelDescriptor *desc;
216
            int64_t bit_rate;
217
            int width, height, dpb_frames;
218
            int framerate;
219
220
            if (sps->vui.nal_hrd_parameters_present_flag) {
221
                bit_rate = (sps->vui.nal_hrd_parameters.bit_rate_value_minus1[0] + 1) *
222
                    (INT64_C(1) << (sps->vui.nal_hrd_parameters.bit_rate_scale + 6));
223
            } else if (sps->vui.vcl_hrd_parameters_present_flag) {
224
                bit_rate = (sps->vui.vcl_hrd_parameters.bit_rate_value_minus1[0] + 1) *
225
                    (INT64_C(1) << (sps->vui.vcl_hrd_parameters.bit_rate_scale + 6));
226
                // Adjust for VCL vs. NAL limits.
227
                bit_rate = bit_rate * 6 / 5;
228
            } else {
229
                bit_rate = 0;
230
            }
231
232
            // Don't use max_dec_frame_buffering if it is only inferred.
233
            dpb_frames = sps->vui.bitstream_restriction_flag ?
234
                sps->vui.max_dec_frame_buffering : H264_MAX_DPB_FRAMES;
235
236
            width  = 16 * (sps->pic_width_in_mbs_minus1 + 1);
237
            height = 16 * (sps->pic_height_in_map_units_minus1 + 1) *
238
                (2 - sps->frame_mbs_only_flag);
239
240
            if (sps->vui.timing_info_present_flag)
241
                framerate = sps->vui.time_scale / sps->vui.num_units_in_tick / 2;
242
            else
243
                framerate = 0;
244
245
            desc = ff_h264_guess_level(sps->profile_idc, bit_rate, framerate,
246
                                       width, height, dpb_frames);
247
            if (desc) {
248
                level_idc = desc->level_idc;
249
            } else {
250
                av_log(bsf, AV_LOG_WARNING, "Stream does not appear to "
251
                       "conform to any level: using level 6.2.\n");
252
                level_idc = 62;
253
            }
254
        } else {
255
            level_idc = ctx->level;
256
        }
257
258
        if (level_idc == 9) {
259
            if (sps->profile_idc == 66 ||
260
                sps->profile_idc == 77 ||
261
                sps->profile_idc == 88) {
262
                sps->level_idc = 11;
263
                sps->constraint_set3_flag = 1;
264
            } else {
265
                sps->level_idc = 9;
266
            }
267
        } else {
268
            sps->level_idc = level_idc;
269
        }
270
    }
271
272
40
    if (need_vui)
273
        sps->vui_parameters_present_flag = 1;
274
275
40
    return 0;
276
}
277
278
4670
static int h264_metadata_filter(AVBSFContext *bsf, AVPacket *pkt)
279
{
280
4670
    H264MetadataContext *ctx = bsf->priv_data;
281
4670
    CodedBitstreamFragment *au = &ctx->access_unit;
282
    int err, i, j, has_sps;
283
    H264RawAUD aud;
284
285
4670
    err = ff_bsf_get_packet_ref(bsf, pkt);
286
4670
    if (err < 0)
287
2335
        return err;
288
289
2335
    err = ff_cbs_read_packet(ctx->cbc, au, pkt);
290
2335
    if (err < 0) {
291
        av_log(bsf, AV_LOG_ERROR, "Failed to read packet.\n");
292
        goto fail;
293
    }
294
295
2335
    if (au->nb_units == 0) {
296
        av_log(bsf, AV_LOG_ERROR, "No NAL units in packet.\n");
297
        err = AVERROR_INVALIDDATA;
298
        goto fail;
299
    }
300
301
    // If an AUD is present, it must be the first NAL unit.
302
2335
    if (au->units[0].type == H264_NAL_AUD) {
303
195
        if (ctx->aud == REMOVE)
304
            ff_cbs_delete_unit(ctx->cbc, au, 0);
305
    } else {
306
2140
        if (ctx->aud == INSERT) {
307
            static const int primary_pic_type_table[] = {
308
                0x084, // 2, 7
309
                0x0a5, // 0, 2, 5, 7
310
                0x0e7, // 0, 1, 2, 5, 6, 7
311
                0x210, // 4, 9
312
                0x318, // 3, 4, 8, 9
313
                0x294, // 2, 4, 7, 9
314
                0x3bd, // 0, 2, 3, 4, 5, 7, 8, 9
315
                0x3ff, // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
316
            };
317
            int primary_pic_type_mask = 0xff;
318
319
            for (i = 0; i < au->nb_units; i++) {
320
                if (au->units[i].type == H264_NAL_SLICE ||
321
                    au->units[i].type == H264_NAL_IDR_SLICE) {
322
                    H264RawSlice *slice = au->units[i].content;
323
                    for (j = 0; j < FF_ARRAY_ELEMS(primary_pic_type_table); j++) {
324
                         if (!(primary_pic_type_table[j] &
325
                               (1 << slice->header.slice_type)))
326
                             primary_pic_type_mask &= ~(1 << j);
327
                    }
328
                }
329
            }
330
            for (j = 0; j < FF_ARRAY_ELEMS(primary_pic_type_table); j++)
331
                if (primary_pic_type_mask & (1 << j))
332
                    break;
333
            if (j >= FF_ARRAY_ELEMS(primary_pic_type_table)) {
334
                av_log(bsf, AV_LOG_ERROR, "No usable primary_pic_type: "
335
                       "invalid slice types?\n");
336
                err = AVERROR_INVALIDDATA;
337
                goto fail;
338
            }
339
340
            aud = (H264RawAUD) {
341
                .nal_unit_header.nal_unit_type = H264_NAL_AUD,
342
                .primary_pic_type = j,
343
            };
344
345
            err = ff_cbs_insert_unit_content(ctx->cbc, au,
346
                                             0, H264_NAL_AUD, &aud, NULL);
347
            if (err < 0) {
348
                av_log(bsf, AV_LOG_ERROR, "Failed to insert AUD.\n");
349
                goto fail;
350
            }
351
        }
352
    }
353
354
2335
    has_sps = 0;
355
8914
    for (i = 0; i < au->nb_units; i++) {
356
6579
        if (au->units[i].type == H264_NAL_SPS) {
357
25
            err = h264_metadata_update_sps(bsf, au->units[i].content);
358
25
            if (err < 0)
359
                goto fail;
360
25
            has_sps = 1;
361
        }
362
    }
363
364
    // Only insert the SEI in access units containing SPSs, and also
365
    // unconditionally in the first access unit we ever see.
366

2335
    if (ctx->sei_user_data && (has_sps || !ctx->done_first_au)) {
367
        H264RawSEIPayload payload = {
368
            .payload_type = H264_SEI_TYPE_USER_DATA_UNREGISTERED,
369
        };
370
        H264RawSEIUserDataUnregistered *udu =
371
            &payload.payload.user_data_unregistered;
372
373
        for (i = j = 0; j < 32 && ctx->sei_user_data[i]; i++) {
374
            int c, v;
375
            c = ctx->sei_user_data[i];
376
            if (c == '-') {
377
                continue;
378
            } else if (av_isxdigit(c)) {
379
                c = av_tolower(c);
380
                v = (c <= '9' ? c - '0' : c - 'a' + 10);
381
            } else {
382
                goto invalid_user_data;
383
            }
384
            if (i & 1)
385
                udu->uuid_iso_iec_11578[j / 2] |= v;
386
            else
387
                udu->uuid_iso_iec_11578[j / 2] = v << 4;
388
            ++j;
389
        }
390
        if (j == 32 && ctx->sei_user_data[i] == '+') {
391
            size_t len = strlen(ctx->sei_user_data + i + 1);
392
393
            udu->data_ref = av_buffer_alloc(len + 1);
394
            if (!udu->data_ref) {
395
                err = AVERROR(ENOMEM);
396
                goto fail;
397
            }
398
399
            udu->data        = udu->data_ref->data;
400
            udu->data_length = len + 1;
401
            memcpy(udu->data, ctx->sei_user_data + i + 1, len + 1);
402
403
            err = ff_cbs_h264_add_sei_message(ctx->cbc, au, &payload);
404
            if (err < 0) {
405
                av_log(bsf, AV_LOG_ERROR, "Failed to add user data SEI "
406
                       "message to access unit.\n");
407
                goto fail;
408
            }
409
410
        } else {
411
        invalid_user_data:
412
            av_log(bsf, AV_LOG_ERROR, "Invalid user data: "
413
                   "must be \"UUID+string\".\n");
414
            err = AVERROR(EINVAL);
415
            goto fail;
416
        }
417
    }
418
419
2335
    if (ctx->delete_filler) {
420
        for (i = au->nb_units - 1; i >= 0; i--) {
421
            if (au->units[i].type == H264_NAL_FILLER_DATA) {
422
                ff_cbs_delete_unit(ctx->cbc, au, i);
423
                continue;
424
            }
425
426
            if (au->units[i].type == H264_NAL_SEI) {
427
                // Filler SEI messages.
428
                H264RawSEI *sei = au->units[i].content;
429
430
                for (j = sei->payload_count - 1; j >= 0; j--) {
431
                    if (sei->payload[j].payload_type ==
432
                        H264_SEI_TYPE_FILLER_PAYLOAD)
433
                        ff_cbs_h264_delete_sei_message(ctx->cbc, au,
434
                                                       &au->units[i], j);
435
                }
436
            }
437
        }
438
    }
439
440
2335
    if (ctx->display_orientation != PASS) {
441
        for (i = au->nb_units - 1; i >= 0; i--) {
442
            H264RawSEI *sei;
443
            if (au->units[i].type != H264_NAL_SEI)
444
                continue;
445
            sei = au->units[i].content;
446
447
            for (j = sei->payload_count - 1; j >= 0; j--) {
448
                H264RawSEIDisplayOrientation *disp;
449
                int32_t *matrix;
450
451
                if (sei->payload[j].payload_type !=
452
                    H264_SEI_TYPE_DISPLAY_ORIENTATION)
453
                    continue;
454
                disp = &sei->payload[j].payload.display_orientation;
455
456
                if (ctx->display_orientation == REMOVE ||
457
                    ctx->display_orientation == INSERT) {
458
                    ff_cbs_h264_delete_sei_message(ctx->cbc, au,
459
                                                   &au->units[i], j);
460
                    continue;
461
                }
462
463
                matrix = av_malloc(9 * sizeof(int32_t));
464
                if (!matrix) {
465
                    err = AVERROR(ENOMEM);
466
                    goto fail;
467
                }
468
469
                av_display_rotation_set(matrix,
470
                                        disp->anticlockwise_rotation *
471
                                        180.0 / 65536.0);
472
                av_display_matrix_flip(matrix, disp->hor_flip, disp->ver_flip);
473
474
                // If there are multiple display orientation messages in an
475
                // access unit, then the last one added to the packet (i.e.
476
                // the first one in the access unit) will prevail.
477
                err = av_packet_add_side_data(pkt, AV_PKT_DATA_DISPLAYMATRIX,
478
                                              (uint8_t*)matrix,
479
                                              9 * sizeof(int32_t));
480
                if (err < 0) {
481
                    av_log(bsf, AV_LOG_ERROR, "Failed to attach extracted "
482
                           "displaymatrix side data to packet.\n");
483
                    av_freep(matrix);
484
                    goto fail;
485
                }
486
            }
487
        }
488
    }
489
2335
    if (ctx->display_orientation == INSERT) {
490
        H264RawSEIPayload payload = {
491
            .payload_type = H264_SEI_TYPE_DISPLAY_ORIENTATION,
492
        };
493
        H264RawSEIDisplayOrientation *disp =
494
            &payload.payload.display_orientation;
495
        uint8_t *data;
496
        int size;
497
        int write = 0;
498
499
        data = av_packet_get_side_data(pkt, AV_PKT_DATA_DISPLAYMATRIX, &size);
500
        if (data && size >= 9 * sizeof(int32_t)) {
501
            int32_t matrix[9];
502
            int hflip, vflip;
503
            double angle;
504
505
            memcpy(matrix, data, sizeof(matrix));
506
507
            hflip = vflip = 0;
508
            if (matrix[0] < 0 && matrix[4] > 0)
509
                hflip = 1;
510
            else if (matrix[0] > 0 && matrix[4] < 0)
511
                vflip = 1;
512
            av_display_matrix_flip(matrix, hflip, vflip);
513
514
            angle = av_display_rotation_get(matrix);
515
516
            if (!(angle >= -180.0 && angle <= 180.0 /* also excludes NaN */) ||
517
                matrix[2] != 0 || matrix[5] != 0 ||
518
                matrix[6] != 0 || matrix[7] != 0) {
519
                av_log(bsf, AV_LOG_WARNING, "Input display matrix is not "
520
                       "representable in H.264 parameters.\n");
521
            } else {
522
                disp->hor_flip = hflip;
523
                disp->ver_flip = vflip;
524
                disp->anticlockwise_rotation =
525
                    (uint16_t)rint((angle >= 0.0 ? angle
526
                                                 : angle + 360.0) *
527
                                   65536.0 / 360.0);
528
                write = 1;
529
            }
530
        }
531
532
        if (has_sps || !ctx->done_first_au) {
533
            if (!isnan(ctx->rotate)) {
534
                disp->anticlockwise_rotation =
535
                    (uint16_t)rint((ctx->rotate >= 0.0 ? ctx->rotate
536
                                                       : ctx->rotate + 360.0) *
537
                                   65536.0 / 360.0);
538
                write = 1;
539
            }
540
            if (ctx->flip) {
541
                disp->hor_flip = !!(ctx->flip & FLIP_HORIZONTAL);
542
                disp->ver_flip = !!(ctx->flip & FLIP_VERTICAL);
543
                write = 1;
544
            }
545
        }
546
547
        if (write) {
548
            disp->display_orientation_repetition_period = 1;
549
550
            err = ff_cbs_h264_add_sei_message(ctx->cbc, au, &payload);
551
            if (err < 0) {
552
                av_log(bsf, AV_LOG_ERROR, "Failed to add display orientation "
553
                       "SEI message to access unit.\n");
554
                goto fail;
555
            }
556
        }
557
    }
558
559
2335
    err = ff_cbs_write_packet(ctx->cbc, pkt, au);
560
2335
    if (err < 0) {
561
        av_log(bsf, AV_LOG_ERROR, "Failed to write packet.\n");
562
        goto fail;
563
    }
564
565
2335
    ctx->done_first_au = 1;
566
567
2335
    err = 0;
568
2335
fail:
569
2335
    ff_cbs_fragment_reset(ctx->cbc, au);
570
571
2335
    if (err < 0)
572
        av_packet_unref(pkt);
573
574
2335
    return err;
575
}
576
577
15
static int h264_metadata_init(AVBSFContext *bsf)
578
{
579
15
    H264MetadataContext *ctx = bsf->priv_data;
580
15
    CodedBitstreamFragment *au = &ctx->access_unit;
581
    int err, i;
582
583
15
    err = ff_cbs_init(&ctx->cbc, AV_CODEC_ID_H264, bsf);
584
15
    if (err < 0)
585
        return err;
586
587
15
    if (bsf->par_in->extradata) {
588
15
        err = ff_cbs_read_extradata(ctx->cbc, au, bsf->par_in);
589
15
        if (err < 0) {
590
            av_log(bsf, AV_LOG_ERROR, "Failed to read extradata.\n");
591
            goto fail;
592
        }
593
594
52
        for (i = 0; i < au->nb_units; i++) {
595
37
            if (au->units[i].type == H264_NAL_SPS) {
596
15
                err = h264_metadata_update_sps(bsf, au->units[i].content);
597
15
                if (err < 0)
598
                    goto fail;
599
            }
600
        }
601
602
15
        err = ff_cbs_write_extradata(ctx->cbc, bsf->par_out, au);
603
15
        if (err < 0) {
604
            av_log(bsf, AV_LOG_ERROR, "Failed to write extradata.\n");
605
            goto fail;
606
        }
607
    }
608
609
15
    err = 0;
610
15
fail:
611
15
    ff_cbs_fragment_reset(ctx->cbc, au);
612
15
    return err;
613
}
614
615
15
static void h264_metadata_close(AVBSFContext *bsf)
616
{
617
15
    H264MetadataContext *ctx = bsf->priv_data;
618
619
15
    ff_cbs_fragment_free(ctx->cbc, &ctx->access_unit);
620
15
    ff_cbs_close(&ctx->cbc);
621
15
}
622
623
#define OFFSET(x) offsetof(H264MetadataContext, x)
624
#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_BSF_PARAM)
625
static const AVOption h264_metadata_options[] = {
626
    { "aud", "Access Unit Delimiter NAL units",
627
        OFFSET(aud), AV_OPT_TYPE_INT,
628
        { .i64 = PASS }, PASS, REMOVE, FLAGS, "aud" },
629
    { "pass",   NULL, 0, AV_OPT_TYPE_CONST,
630
        { .i64 = PASS   }, .flags = FLAGS, .unit = "aud" },
631
    { "insert", NULL, 0, AV_OPT_TYPE_CONST,
632
        { .i64 = INSERT }, .flags = FLAGS, .unit = "aud" },
633
    { "remove", NULL, 0, AV_OPT_TYPE_CONST,
634
        { .i64 = REMOVE }, .flags = FLAGS, .unit = "aud" },
635
636
    { "sample_aspect_ratio", "Set sample aspect ratio (table E-1)",
637
        OFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL,
638
        { .dbl = 0.0 }, 0, 65535, FLAGS },
639
640
    { "overscan_appropriate_flag", "Set VUI overscan appropriate flag",
641
        OFFSET(overscan_appropriate_flag), AV_OPT_TYPE_INT,
642
        { .i64 = -1 }, -1, 1, FLAGS },
643
644
    { "video_format", "Set video format (table E-2)",
645
        OFFSET(video_format), AV_OPT_TYPE_INT,
646
        { .i64 = -1 }, -1, 7, FLAGS},
647
    { "video_full_range_flag", "Set video full range flag",
648
        OFFSET(video_full_range_flag), AV_OPT_TYPE_INT,
649
        { .i64 = -1 }, -1, 1, FLAGS },
650
    { "colour_primaries", "Set colour primaries (table E-3)",
651
        OFFSET(colour_primaries), AV_OPT_TYPE_INT,
652
        { .i64 = -1 }, -1, 255, FLAGS },
653
    { "transfer_characteristics", "Set transfer characteristics (table E-4)",
654
        OFFSET(transfer_characteristics), AV_OPT_TYPE_INT,
655
        { .i64 = -1 }, -1, 255, FLAGS },
656
    { "matrix_coefficients", "Set matrix coefficients (table E-5)",
657
        OFFSET(matrix_coefficients), AV_OPT_TYPE_INT,
658
        { .i64 = -1 }, -1, 255, FLAGS },
659
660
    { "chroma_sample_loc_type", "Set chroma sample location type (figure E-1)",
661
        OFFSET(chroma_sample_loc_type), AV_OPT_TYPE_INT,
662
        { .i64 = -1 }, -1, 6, FLAGS },
663
664
    { "tick_rate", "Set VUI tick rate (num_units_in_tick / time_scale)",
665
        OFFSET(tick_rate), AV_OPT_TYPE_RATIONAL,
666
        { .dbl = 0.0 }, 0, UINT_MAX, FLAGS },
667
    { "fixed_frame_rate_flag", "Set VUI fixed frame rate flag",
668
        OFFSET(fixed_frame_rate_flag), AV_OPT_TYPE_INT,
669
        { .i64 = -1 }, -1, 1, FLAGS },
670
671
    { "crop_left", "Set left border crop offset",
672
        OFFSET(crop_left), AV_OPT_TYPE_INT,
673
        { .i64 = -1 }, -1, H264_MAX_WIDTH, FLAGS },
674
    { "crop_right", "Set right border crop offset",
675
        OFFSET(crop_right), AV_OPT_TYPE_INT,
676
        { .i64 = -1 }, -1, H264_MAX_WIDTH, FLAGS },
677
    { "crop_top", "Set top border crop offset",
678
        OFFSET(crop_top), AV_OPT_TYPE_INT,
679
        { .i64 = -1 }, -1, H264_MAX_HEIGHT, FLAGS },
680
    { "crop_bottom", "Set bottom border crop offset",
681
        OFFSET(crop_bottom), AV_OPT_TYPE_INT,
682
        { .i64 = -1 }, -1, H264_MAX_HEIGHT, FLAGS },
683
684
    { "sei_user_data", "Insert SEI user data (UUID+string)",
685
        OFFSET(sei_user_data), AV_OPT_TYPE_STRING, { .str = NULL }, .flags = FLAGS },
686
687
    { "delete_filler", "Delete all filler (both NAL and SEI)",
688
        OFFSET(delete_filler), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS},
689
690
    { "display_orientation", "Display orientation SEI",
691
        OFFSET(display_orientation), AV_OPT_TYPE_INT,
692
        { .i64 = PASS }, PASS, EXTRACT, FLAGS, "disp_or" },
693
    { "pass",    NULL, 0, AV_OPT_TYPE_CONST,
694
        { .i64 = PASS    }, .flags = FLAGS, .unit = "disp_or" },
695
    { "insert",  NULL, 0, AV_OPT_TYPE_CONST,
696
        { .i64 = INSERT  }, .flags = FLAGS, .unit = "disp_or" },
697
    { "remove",  NULL, 0, AV_OPT_TYPE_CONST,
698
        { .i64 = REMOVE  }, .flags = FLAGS, .unit = "disp_or" },
699
    { "extract", NULL, 0, AV_OPT_TYPE_CONST,
700
        { .i64 = EXTRACT }, .flags = FLAGS, .unit = "disp_or" },
701
702
    { "rotate", "Set rotation in display orientation SEI (anticlockwise angle in degrees)",
703
        OFFSET(rotate), AV_OPT_TYPE_DOUBLE,
704
        { .dbl = NAN }, -360.0, +360.0, FLAGS },
705
    { "flip", "Set flip in display orientation SEI",
706
        OFFSET(flip), AV_OPT_TYPE_FLAGS,
707
        { .i64 = 0 }, 0, FLIP_HORIZONTAL | FLIP_VERTICAL, FLAGS, "flip" },
708
    { "horizontal", "Set hor_flip",
709
        0, AV_OPT_TYPE_CONST,
710
        { .i64 = FLIP_HORIZONTAL }, .flags = FLAGS, .unit = "flip" },
711
    { "vertical",   "Set ver_flip",
712
        0, AV_OPT_TYPE_CONST,
713
        { .i64 = FLIP_VERTICAL },   .flags = FLAGS, .unit = "flip" },
714
715
    { "level", "Set level (table A-1)",
716
        OFFSET(level), AV_OPT_TYPE_INT,
717
        { .i64 = LEVEL_UNSET }, LEVEL_UNSET, 0xff, FLAGS, "level" },
718
    { "auto", "Attempt to guess level from stream properties",
719
        0, AV_OPT_TYPE_CONST,
720
        { .i64 = LEVEL_AUTO }, .flags = FLAGS, .unit = "level" },
721
#define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
722
        { .i64 = value },      .flags = FLAGS, .unit = "level"
723
    { LEVEL("1",   10) },
724
    { LEVEL("1b",   9) },
725
    { LEVEL("1.1", 11) },
726
    { LEVEL("1.2", 12) },
727
    { LEVEL("1.3", 13) },
728
    { LEVEL("2",   20) },
729
    { LEVEL("2.1", 21) },
730
    { LEVEL("2.2", 22) },
731
    { LEVEL("3",   30) },
732
    { LEVEL("3.1", 31) },
733
    { LEVEL("3.2", 32) },
734
    { LEVEL("4",   40) },
735
    { LEVEL("4.1", 41) },
736
    { LEVEL("4.2", 42) },
737
    { LEVEL("5",   50) },
738
    { LEVEL("5.1", 51) },
739
    { LEVEL("5.2", 52) },
740
    { LEVEL("6",   60) },
741
    { LEVEL("6.1", 61) },
742
    { LEVEL("6.2", 62) },
743
#undef LEVEL
744
745
    { NULL }
746
};
747
748
static const AVClass h264_metadata_class = {
749
    .class_name = "h264_metadata_bsf",
750
    .item_name  = av_default_item_name,
751
    .option     = h264_metadata_options,
752
    .version    = LIBAVUTIL_VERSION_INT,
753
};
754
755
static const enum AVCodecID h264_metadata_codec_ids[] = {
756
    AV_CODEC_ID_H264, AV_CODEC_ID_NONE,
757
};
758
759
const AVBitStreamFilter ff_h264_metadata_bsf = {
760
    .name           = "h264_metadata",
761
    .priv_data_size = sizeof(H264MetadataContext),
762
    .priv_class     = &h264_metadata_class,
763
    .init           = &h264_metadata_init,
764
    .close          = &h264_metadata_close,
765
    .filter         = &h264_metadata_filter,
766
    .codec_ids      = h264_metadata_codec_ids,
767
};