GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/h264_metadata_bsf.c Lines: 88 319 27.6 %
Date: 2020-09-21 17:35:45 Branches: 51 268 19.0 %

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 "bsf_internal.h"
26
#include "cbs.h"
27
#include "cbs_h264.h"
28
#include "h264.h"
29
#include "h264_levels.h"
30
#include "h264_sei.h"
31
32
enum {
33
    PASS,
34
    INSERT,
35
    REMOVE,
36
    EXTRACT,
37
};
38
39
enum {
40
    FLIP_HORIZONTAL = 1,
41
    FLIP_VERTICAL   = 2,
42
};
43
44
enum {
45
    LEVEL_UNSET = -2,
46
    LEVEL_AUTO  = -1,
47
};
48
49
typedef struct H264MetadataContext {
50
    const AVClass *class;
51
52
    CodedBitstreamContext *input;
53
    CodedBitstreamContext *output;
54
    CodedBitstreamFragment access_unit;
55
56
    int done_first_au;
57
58
    int aud;
59
60
    AVRational sample_aspect_ratio;
61
62
    int overscan_appropriate_flag;
63
64
    int video_format;
65
    int video_full_range_flag;
66
    int colour_primaries;
67
    int transfer_characteristics;
68
    int matrix_coefficients;
69
70
    int chroma_sample_loc_type;
71
72
    AVRational tick_rate;
73
    int fixed_frame_rate_flag;
74
75
    int crop_left;
76
    int crop_right;
77
    int crop_top;
78
    int crop_bottom;
79
80
    const char *sei_user_data;
81
82
    int delete_filler;
83
84
    int display_orientation;
85
    double rotate;
86
    int flip;
87
88
    int level;
89
} H264MetadataContext;
90
91
92
40
static int h264_metadata_update_sps(AVBSFContext *bsf,
93
                                    H264RawSPS *sps)
94
{
95
40
    H264MetadataContext *ctx = bsf->priv_data;
96
40
    int need_vui = 0;
97
    int crop_unit_x, crop_unit_y;
98
99

40
    if (ctx->sample_aspect_ratio.num && ctx->sample_aspect_ratio.den) {
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
        }
125
        sps->vui.aspect_ratio_info_present_flag = 1;
126
        need_vui = 1;
127
    }
128
129
#define SET_VUI_FIELD(field) do { \
130
        if (ctx->field >= 0) { \
131
            sps->vui.field = ctx->field; \
132
            need_vui = 1; \
133
        } \
134
    } while (0)
135
136
40
    if (ctx->overscan_appropriate_flag >= 0) {
137
        SET_VUI_FIELD(overscan_appropriate_flag);
138
        sps->vui.overscan_info_present_flag = 1;
139
    }
140
141
40
    if (ctx->video_format             >= 0 ||
142
40
        ctx->video_full_range_flag    >= 0 ||
143
40
        ctx->colour_primaries         >= 0 ||
144
40
        ctx->transfer_characteristics >= 0 ||
145
40
        ctx->matrix_coefficients      >= 0) {
146
147
        SET_VUI_FIELD(video_format);
148
149
        SET_VUI_FIELD(video_full_range_flag);
150
151
        if (ctx->colour_primaries         >= 0 ||
152
            ctx->transfer_characteristics >= 0 ||
153
            ctx->matrix_coefficients      >= 0) {
154
155
            SET_VUI_FIELD(colour_primaries);
156
            SET_VUI_FIELD(transfer_characteristics);
157
            SET_VUI_FIELD(matrix_coefficients);
158
159
            sps->vui.colour_description_present_flag = 1;
160
        }
161
        sps->vui.video_signal_type_present_flag = 1;
162
    }
163
164
40
    if (ctx->chroma_sample_loc_type >= 0) {
165
        sps->vui.chroma_sample_loc_type_top_field =
166
            ctx->chroma_sample_loc_type;
167
        sps->vui.chroma_sample_loc_type_bottom_field =
168
            ctx->chroma_sample_loc_type;
169
        sps->vui.chroma_loc_info_present_flag = 1;
170
        need_vui = 1;
171
    }
172
173

40
    if (ctx->tick_rate.num && ctx->tick_rate.den) {
174
        int num, den;
175
176
        av_reduce(&num, &den, ctx->tick_rate.num, ctx->tick_rate.den,
177
                  UINT32_MAX > INT_MAX ? UINT32_MAX : INT_MAX);
178
179
        sps->vui.time_scale        = num;
180
        sps->vui.num_units_in_tick = den;
181
182
        sps->vui.timing_info_present_flag = 1;
183
        need_vui = 1;
184
    }
185
40
    SET_VUI_FIELD(fixed_frame_rate_flag);
186
187

40
    if (sps->separate_colour_plane_flag || sps->chroma_format_idc == 0) {
188
        crop_unit_x = 1;
189
        crop_unit_y = 2 - sps->frame_mbs_only_flag;
190
    } else {
191
40
        crop_unit_x = 1 + (sps->chroma_format_idc < 3);
192
40
        crop_unit_y = (1 + (sps->chroma_format_idc < 2)) *
193
40
                       (2 - sps->frame_mbs_only_flag);
194
    }
195
#define CROP(border, unit) do { \
196
        if (ctx->crop_ ## border >= 0) { \
197
            if (ctx->crop_ ## border % unit != 0) { \
198
                av_log(bsf, AV_LOG_ERROR, "Invalid value for crop_%s: " \
199
                       "must be a multiple of %d.\n", #border, unit); \
200
                return AVERROR(EINVAL); \
201
            } \
202
            sps->frame_crop_ ## border ## _offset = \
203
                  ctx->crop_ ## border / unit; \
204
            sps->frame_cropping_flag = 1; \
205
        } \
206
    } while (0)
207

40
    CROP(left,   crop_unit_x);
208

40
    CROP(right,  crop_unit_x);
209

40
    CROP(top,    crop_unit_y);
210

40
    CROP(bottom, crop_unit_y);
211
#undef CROP
212
213
40
    if (ctx->level != LEVEL_UNSET) {
214
        int level_idc;
215
216
        if (ctx->level == LEVEL_AUTO) {
217
            const H264LevelDescriptor *desc;
218
            int64_t bit_rate;
219
            int width, height, dpb_frames;
220
            int framerate;
221
222
            if (sps->vui.nal_hrd_parameters_present_flag) {
223
                bit_rate = (sps->vui.nal_hrd_parameters.bit_rate_value_minus1[0] + 1) *
224
                    (INT64_C(1) << (sps->vui.nal_hrd_parameters.bit_rate_scale + 6));
225
            } else if (sps->vui.vcl_hrd_parameters_present_flag) {
226
                bit_rate = (sps->vui.vcl_hrd_parameters.bit_rate_value_minus1[0] + 1) *
227
                    (INT64_C(1) << (sps->vui.vcl_hrd_parameters.bit_rate_scale + 6));
228
                // Adjust for VCL vs. NAL limits.
229
                bit_rate = bit_rate * 6 / 5;
230
            } else {
231
                bit_rate = 0;
232
            }
233
234
            // Don't use max_dec_frame_buffering if it is only inferred.
235
            dpb_frames = sps->vui.bitstream_restriction_flag ?
236
                sps->vui.max_dec_frame_buffering : H264_MAX_DPB_FRAMES;
237
238
            width  = 16 * (sps->pic_width_in_mbs_minus1 + 1);
239
            height = 16 * (sps->pic_height_in_map_units_minus1 + 1) *
240
                (2 - sps->frame_mbs_only_flag);
241
242
            if (sps->vui.timing_info_present_flag)
243
                framerate = sps->vui.time_scale / sps->vui.num_units_in_tick / 2;
244
            else
245
                framerate = 0;
246
247
            desc = ff_h264_guess_level(sps->profile_idc, bit_rate, framerate,
248
                                       width, height, dpb_frames);
249
            if (desc) {
250
                level_idc = desc->level_idc;
251
            } else {
252
                av_log(bsf, AV_LOG_WARNING, "Stream does not appear to "
253
                       "conform to any level: using level 6.2.\n");
254
                level_idc = 62;
255
            }
256
        } else {
257
            level_idc = ctx->level;
258
        }
259
260
        if (level_idc == 9) {
261
            if (sps->profile_idc == 66 ||
262
                sps->profile_idc == 77 ||
263
                sps->profile_idc == 88) {
264
                sps->level_idc = 11;
265
                sps->constraint_set3_flag = 1;
266
            } else {
267
                sps->level_idc = 9;
268
            }
269
        } else {
270
            sps->level_idc = level_idc;
271
        }
272
    }
273
274
40
    if (need_vui)
275
        sps->vui_parameters_present_flag = 1;
276
277
40
    return 0;
278
}
279
280
2335
static int h264_metadata_update_side_data(AVBSFContext *bsf, AVPacket *pkt)
281
{
282
2335
    H264MetadataContext *ctx = bsf->priv_data;
283
2335
    CodedBitstreamFragment *au = &ctx->access_unit;
284
    uint8_t *side_data;
285
    int side_data_size;
286
    int err, i;
287
288
2335
    side_data = av_packet_get_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA,
289
                                        &side_data_size);
290
2335
    if (!side_data_size)
291
2335
        return 0;
292
293
    err = ff_cbs_read(ctx->input, au, side_data, side_data_size);
294
    if (err < 0) {
295
        av_log(bsf, AV_LOG_ERROR, "Failed to read extradata from packet side data.\n");
296
        return err;
297
    }
298
299
    for (i = 0; i < au->nb_units; i++) {
300
        if (au->units[i].type == H264_NAL_SPS) {
301
            err = h264_metadata_update_sps(bsf, au->units[i].content);
302
            if (err < 0)
303
                return err;
304
        }
305
    }
306
307
    err = ff_cbs_write_fragment_data(ctx->output, au);
308
    if (err < 0) {
309
        av_log(bsf, AV_LOG_ERROR, "Failed to write extradata into packet side data.\n");
310
        return err;
311
    }
312
313
    side_data = av_packet_new_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA, au->data_size);
314
    if (!side_data)
315
        return AVERROR(ENOMEM);
316
    memcpy(side_data, au->data, au->data_size);
317
318
    ff_cbs_fragment_reset(au);
319
320
    return 0;
321
}
322
323
4670
static int h264_metadata_filter(AVBSFContext *bsf, AVPacket *pkt)
324
{
325
4670
    H264MetadataContext *ctx = bsf->priv_data;
326
4670
    CodedBitstreamFragment *au = &ctx->access_unit;
327
    int err, i, j, has_sps;
328
    H264RawAUD aud;
329
330
4670
    err = ff_bsf_get_packet_ref(bsf, pkt);
331
4670
    if (err < 0)
332
2335
        return err;
333
334
2335
    err = h264_metadata_update_side_data(bsf, pkt);
335
2335
    if (err < 0)
336
        goto fail;
337
338
2335
    err = ff_cbs_read_packet(ctx->input, au, pkt);
339
2335
    if (err < 0) {
340
        av_log(bsf, AV_LOG_ERROR, "Failed to read packet.\n");
341
        goto fail;
342
    }
343
344
2335
    if (au->nb_units == 0) {
345
        av_log(bsf, AV_LOG_ERROR, "No NAL units in packet.\n");
346
        err = AVERROR_INVALIDDATA;
347
        goto fail;
348
    }
349
350
    // If an AUD is present, it must be the first NAL unit.
351
2335
    if (au->units[0].type == H264_NAL_AUD) {
352
195
        if (ctx->aud == REMOVE)
353
            ff_cbs_delete_unit(au, 0);
354
    } else {
355
2140
        if (ctx->aud == INSERT) {
356
            static const int primary_pic_type_table[] = {
357
                0x084, // 2, 7
358
                0x0a5, // 0, 2, 5, 7
359
                0x0e7, // 0, 1, 2, 5, 6, 7
360
                0x210, // 4, 9
361
                0x318, // 3, 4, 8, 9
362
                0x294, // 2, 4, 7, 9
363
                0x3bd, // 0, 2, 3, 4, 5, 7, 8, 9
364
                0x3ff, // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
365
            };
366
            int primary_pic_type_mask = 0xff;
367
368
            for (i = 0; i < au->nb_units; i++) {
369
                if (au->units[i].type == H264_NAL_SLICE ||
370
                    au->units[i].type == H264_NAL_IDR_SLICE) {
371
                    H264RawSlice *slice = au->units[i].content;
372
                    for (j = 0; j < FF_ARRAY_ELEMS(primary_pic_type_table); j++) {
373
                         if (!(primary_pic_type_table[j] &
374
                               (1 << slice->header.slice_type)))
375
                             primary_pic_type_mask &= ~(1 << j);
376
                    }
377
                }
378
            }
379
            for (j = 0; j < FF_ARRAY_ELEMS(primary_pic_type_table); j++)
380
                if (primary_pic_type_mask & (1 << j))
381
                    break;
382
            if (j >= FF_ARRAY_ELEMS(primary_pic_type_table)) {
383
                av_log(bsf, AV_LOG_ERROR, "No usable primary_pic_type: "
384
                       "invalid slice types?\n");
385
                err = AVERROR_INVALIDDATA;
386
                goto fail;
387
            }
388
389
            aud = (H264RawAUD) {
390
                .nal_unit_header.nal_unit_type = H264_NAL_AUD,
391
                .primary_pic_type = j,
392
            };
393
394
            err = ff_cbs_insert_unit_content(au,
395
                                             0, H264_NAL_AUD, &aud, NULL);
396
            if (err < 0) {
397
                av_log(bsf, AV_LOG_ERROR, "Failed to insert AUD.\n");
398
                goto fail;
399
            }
400
        }
401
    }
402
403
2335
    has_sps = 0;
404
8914
    for (i = 0; i < au->nb_units; i++) {
405
6579
        if (au->units[i].type == H264_NAL_SPS) {
406
25
            err = h264_metadata_update_sps(bsf, au->units[i].content);
407
25
            if (err < 0)
408
                goto fail;
409
25
            has_sps = 1;
410
        }
411
    }
412
413
    // Only insert the SEI in access units containing SPSs, and also
414
    // unconditionally in the first access unit we ever see.
415

2335
    if (ctx->sei_user_data && (has_sps || !ctx->done_first_au)) {
416
        H264RawSEIPayload payload = {
417
            .payload_type = H264_SEI_TYPE_USER_DATA_UNREGISTERED,
418
        };
419
        H264RawSEIUserDataUnregistered *udu =
420
            &payload.payload.user_data_unregistered;
421
422
        for (i = j = 0; j < 32 && ctx->sei_user_data[i]; i++) {
423
            int c, v;
424
            c = ctx->sei_user_data[i];
425
            if (c == '-') {
426
                continue;
427
            } else if (av_isxdigit(c)) {
428
                c = av_tolower(c);
429
                v = (c <= '9' ? c - '0' : c - 'a' + 10);
430
            } else {
431
                goto invalid_user_data;
432
            }
433
            if (j & 1)
434
                udu->uuid_iso_iec_11578[j / 2] |= v;
435
            else
436
                udu->uuid_iso_iec_11578[j / 2] = v << 4;
437
            ++j;
438
        }
439
        if (j == 32 && ctx->sei_user_data[i] == '+') {
440
            size_t len = strlen(ctx->sei_user_data + i + 1);
441
442
            udu->data_ref = av_buffer_alloc(len + 1);
443
            if (!udu->data_ref) {
444
                err = AVERROR(ENOMEM);
445
                goto fail;
446
            }
447
448
            udu->data        = udu->data_ref->data;
449
            udu->data_length = len + 1;
450
            memcpy(udu->data, ctx->sei_user_data + i + 1, len + 1);
451
452
            err = ff_cbs_h264_add_sei_message(au, &payload);
453
            if (err < 0) {
454
                av_log(bsf, AV_LOG_ERROR, "Failed to add user data SEI "
455
                       "message to access unit.\n");
456
                goto fail;
457
            }
458
459
        } else {
460
        invalid_user_data:
461
            av_log(bsf, AV_LOG_ERROR, "Invalid user data: "
462
                   "must be \"UUID+string\".\n");
463
            err = AVERROR(EINVAL);
464
            goto fail;
465
        }
466
    }
467
468
2335
    if (ctx->delete_filler) {
469
        for (i = au->nb_units - 1; i >= 0; i--) {
470
            if (au->units[i].type == H264_NAL_FILLER_DATA) {
471
                ff_cbs_delete_unit(au, i);
472
                continue;
473
            }
474
475
            if (au->units[i].type == H264_NAL_SEI) {
476
                // Filler SEI messages.
477
                H264RawSEI *sei = au->units[i].content;
478
479
                for (j = sei->payload_count - 1; j >= 0; j--) {
480
                    if (sei->payload[j].payload_type ==
481
                        H264_SEI_TYPE_FILLER_PAYLOAD)
482
                        ff_cbs_h264_delete_sei_message(au, &au->units[i], j);
483
                }
484
            }
485
        }
486
    }
487
488
2335
    if (ctx->display_orientation != PASS) {
489
        for (i = au->nb_units - 1; i >= 0; i--) {
490
            H264RawSEI *sei;
491
            if (au->units[i].type != H264_NAL_SEI)
492
                continue;
493
            sei = au->units[i].content;
494
495
            for (j = sei->payload_count - 1; j >= 0; j--) {
496
                H264RawSEIDisplayOrientation *disp;
497
                int32_t *matrix;
498
499
                if (sei->payload[j].payload_type !=
500
                    H264_SEI_TYPE_DISPLAY_ORIENTATION)
501
                    continue;
502
                disp = &sei->payload[j].payload.display_orientation;
503
504
                if (ctx->display_orientation == REMOVE ||
505
                    ctx->display_orientation == INSERT) {
506
                    ff_cbs_h264_delete_sei_message(au, &au->units[i], j);
507
                    continue;
508
                }
509
510
                matrix = av_malloc(9 * sizeof(int32_t));
511
                if (!matrix) {
512
                    err = AVERROR(ENOMEM);
513
                    goto fail;
514
                }
515
516
                av_display_rotation_set(matrix,
517
                                        disp->anticlockwise_rotation *
518
                                        180.0 / 65536.0);
519
                av_display_matrix_flip(matrix, disp->hor_flip, disp->ver_flip);
520
521
                // If there are multiple display orientation messages in an
522
                // access unit, then the last one added to the packet (i.e.
523
                // the first one in the access unit) will prevail.
524
                err = av_packet_add_side_data(pkt, AV_PKT_DATA_DISPLAYMATRIX,
525
                                              (uint8_t*)matrix,
526
                                              9 * sizeof(int32_t));
527
                if (err < 0) {
528
                    av_log(bsf, AV_LOG_ERROR, "Failed to attach extracted "
529
                           "displaymatrix side data to packet.\n");
530
                    av_free(matrix);
531
                    goto fail;
532
                }
533
            }
534
        }
535
    }
536
2335
    if (ctx->display_orientation == INSERT) {
537
        H264RawSEIPayload payload = {
538
            .payload_type = H264_SEI_TYPE_DISPLAY_ORIENTATION,
539
        };
540
        H264RawSEIDisplayOrientation *disp =
541
            &payload.payload.display_orientation;
542
        uint8_t *data;
543
        int size;
544
        int write = 0;
545
546
        data = av_packet_get_side_data(pkt, AV_PKT_DATA_DISPLAYMATRIX, &size);
547
        if (data && size >= 9 * sizeof(int32_t)) {
548
            int32_t matrix[9];
549
            int hflip, vflip;
550
            double angle;
551
552
            memcpy(matrix, data, sizeof(matrix));
553
554
            hflip = vflip = 0;
555
            if (matrix[0] < 0 && matrix[4] > 0)
556
                hflip = 1;
557
            else if (matrix[0] > 0 && matrix[4] < 0)
558
                vflip = 1;
559
            av_display_matrix_flip(matrix, hflip, vflip);
560
561
            angle = av_display_rotation_get(matrix);
562
563
            if (!(angle >= -180.0 && angle <= 180.0 /* also excludes NaN */) ||
564
                matrix[2] != 0 || matrix[5] != 0 ||
565
                matrix[6] != 0 || matrix[7] != 0) {
566
                av_log(bsf, AV_LOG_WARNING, "Input display matrix is not "
567
                       "representable in H.264 parameters.\n");
568
            } else {
569
                disp->hor_flip = hflip;
570
                disp->ver_flip = vflip;
571
                disp->anticlockwise_rotation =
572
                    (uint16_t)rint((angle >= 0.0 ? angle
573
                                                 : angle + 360.0) *
574
                                   65536.0 / 360.0);
575
                write = 1;
576
            }
577
        }
578
579
        if (has_sps || !ctx->done_first_au) {
580
            if (!isnan(ctx->rotate)) {
581
                disp->anticlockwise_rotation =
582
                    (uint16_t)rint((ctx->rotate >= 0.0 ? ctx->rotate
583
                                                       : ctx->rotate + 360.0) *
584
                                   65536.0 / 360.0);
585
                write = 1;
586
            }
587
            if (ctx->flip) {
588
                disp->hor_flip = !!(ctx->flip & FLIP_HORIZONTAL);
589
                disp->ver_flip = !!(ctx->flip & FLIP_VERTICAL);
590
                write = 1;
591
            }
592
        }
593
594
        if (write) {
595
            disp->display_orientation_repetition_period = 1;
596
597
            err = ff_cbs_h264_add_sei_message(au, &payload);
598
            if (err < 0) {
599
                av_log(bsf, AV_LOG_ERROR, "Failed to add display orientation "
600
                       "SEI message to access unit.\n");
601
                goto fail;
602
            }
603
        }
604
    }
605
606
2335
    err = ff_cbs_write_packet(ctx->output, pkt, au);
607
2335
    if (err < 0) {
608
        av_log(bsf, AV_LOG_ERROR, "Failed to write packet.\n");
609
        goto fail;
610
    }
611
612
2335
    ctx->done_first_au = 1;
613
614
2335
    err = 0;
615
2335
fail:
616
2335
    ff_cbs_fragment_reset(au);
617
618
2335
    if (err < 0)
619
        av_packet_unref(pkt);
620
621
2335
    return err;
622
}
623
624
15
static int h264_metadata_init(AVBSFContext *bsf)
625
{
626
15
    H264MetadataContext *ctx = bsf->priv_data;
627
15
    CodedBitstreamFragment *au = &ctx->access_unit;
628
    int err, i;
629
630
15
    err = ff_cbs_init(&ctx->input,  AV_CODEC_ID_H264, bsf);
631
15
    if (err < 0)
632
        return err;
633
15
    err = ff_cbs_init(&ctx->output, AV_CODEC_ID_H264, bsf);
634
15
    if (err < 0)
635
        return err;
636
637
15
    if (bsf->par_in->extradata) {
638
15
        err = ff_cbs_read_extradata(ctx->input, au, bsf->par_in);
639
15
        if (err < 0) {
640
            av_log(bsf, AV_LOG_ERROR, "Failed to read extradata.\n");
641
            goto fail;
642
        }
643
644
52
        for (i = 0; i < au->nb_units; i++) {
645
37
            if (au->units[i].type == H264_NAL_SPS) {
646
15
                err = h264_metadata_update_sps(bsf, au->units[i].content);
647
15
                if (err < 0)
648
                    goto fail;
649
            }
650
        }
651
652
15
        err = ff_cbs_write_extradata(ctx->output, bsf->par_out, au);
653
15
        if (err < 0) {
654
            av_log(bsf, AV_LOG_ERROR, "Failed to write extradata.\n");
655
            goto fail;
656
        }
657
    }
658
659
15
    err = 0;
660
15
fail:
661
15
    ff_cbs_fragment_reset(au);
662
15
    return err;
663
}
664
665
15
static void h264_metadata_close(AVBSFContext *bsf)
666
{
667
15
    H264MetadataContext *ctx = bsf->priv_data;
668
669
15
    ff_cbs_fragment_free(&ctx->access_unit);
670
15
    ff_cbs_close(&ctx->input);
671
15
    ff_cbs_close(&ctx->output);
672
15
}
673
674
#define OFFSET(x) offsetof(H264MetadataContext, x)
675
#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_BSF_PARAM)
676
static const AVOption h264_metadata_options[] = {
677
    { "aud", "Access Unit Delimiter NAL units",
678
        OFFSET(aud), AV_OPT_TYPE_INT,
679
        { .i64 = PASS }, PASS, REMOVE, FLAGS, "aud" },
680
    { "pass",   NULL, 0, AV_OPT_TYPE_CONST,
681
        { .i64 = PASS   }, .flags = FLAGS, .unit = "aud" },
682
    { "insert", NULL, 0, AV_OPT_TYPE_CONST,
683
        { .i64 = INSERT }, .flags = FLAGS, .unit = "aud" },
684
    { "remove", NULL, 0, AV_OPT_TYPE_CONST,
685
        { .i64 = REMOVE }, .flags = FLAGS, .unit = "aud" },
686
687
    { "sample_aspect_ratio", "Set sample aspect ratio (table E-1)",
688
        OFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL,
689
        { .dbl = 0.0 }, 0, 65535, FLAGS },
690
691
    { "overscan_appropriate_flag", "Set VUI overscan appropriate flag",
692
        OFFSET(overscan_appropriate_flag), AV_OPT_TYPE_INT,
693
        { .i64 = -1 }, -1, 1, FLAGS },
694
695
    { "video_format", "Set video format (table E-2)",
696
        OFFSET(video_format), AV_OPT_TYPE_INT,
697
        { .i64 = -1 }, -1, 7, FLAGS},
698
    { "video_full_range_flag", "Set video full range flag",
699
        OFFSET(video_full_range_flag), AV_OPT_TYPE_INT,
700
        { .i64 = -1 }, -1, 1, FLAGS },
701
    { "colour_primaries", "Set colour primaries (table E-3)",
702
        OFFSET(colour_primaries), AV_OPT_TYPE_INT,
703
        { .i64 = -1 }, -1, 255, FLAGS },
704
    { "transfer_characteristics", "Set transfer characteristics (table E-4)",
705
        OFFSET(transfer_characteristics), AV_OPT_TYPE_INT,
706
        { .i64 = -1 }, -1, 255, FLAGS },
707
    { "matrix_coefficients", "Set matrix coefficients (table E-5)",
708
        OFFSET(matrix_coefficients), AV_OPT_TYPE_INT,
709
        { .i64 = -1 }, -1, 255, FLAGS },
710
711
    { "chroma_sample_loc_type", "Set chroma sample location type (figure E-1)",
712
        OFFSET(chroma_sample_loc_type), AV_OPT_TYPE_INT,
713
        { .i64 = -1 }, -1, 6, FLAGS },
714
715
    { "tick_rate", "Set VUI tick rate (num_units_in_tick / time_scale)",
716
        OFFSET(tick_rate), AV_OPT_TYPE_RATIONAL,
717
        { .dbl = 0.0 }, 0, UINT_MAX, FLAGS },
718
    { "fixed_frame_rate_flag", "Set VUI fixed frame rate flag",
719
        OFFSET(fixed_frame_rate_flag), AV_OPT_TYPE_INT,
720
        { .i64 = -1 }, -1, 1, FLAGS },
721
722
    { "crop_left", "Set left border crop offset",
723
        OFFSET(crop_left), AV_OPT_TYPE_INT,
724
        { .i64 = -1 }, -1, H264_MAX_WIDTH, FLAGS },
725
    { "crop_right", "Set right border crop offset",
726
        OFFSET(crop_right), AV_OPT_TYPE_INT,
727
        { .i64 = -1 }, -1, H264_MAX_WIDTH, FLAGS },
728
    { "crop_top", "Set top border crop offset",
729
        OFFSET(crop_top), AV_OPT_TYPE_INT,
730
        { .i64 = -1 }, -1, H264_MAX_HEIGHT, FLAGS },
731
    { "crop_bottom", "Set bottom border crop offset",
732
        OFFSET(crop_bottom), AV_OPT_TYPE_INT,
733
        { .i64 = -1 }, -1, H264_MAX_HEIGHT, FLAGS },
734
735
    { "sei_user_data", "Insert SEI user data (UUID+string)",
736
        OFFSET(sei_user_data), AV_OPT_TYPE_STRING, { .str = NULL }, .flags = FLAGS },
737
738
    { "delete_filler", "Delete all filler (both NAL and SEI)",
739
        OFFSET(delete_filler), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS},
740
741
    { "display_orientation", "Display orientation SEI",
742
        OFFSET(display_orientation), AV_OPT_TYPE_INT,
743
        { .i64 = PASS }, PASS, EXTRACT, FLAGS, "disp_or" },
744
    { "pass",    NULL, 0, AV_OPT_TYPE_CONST,
745
        { .i64 = PASS    }, .flags = FLAGS, .unit = "disp_or" },
746
    { "insert",  NULL, 0, AV_OPT_TYPE_CONST,
747
        { .i64 = INSERT  }, .flags = FLAGS, .unit = "disp_or" },
748
    { "remove",  NULL, 0, AV_OPT_TYPE_CONST,
749
        { .i64 = REMOVE  }, .flags = FLAGS, .unit = "disp_or" },
750
    { "extract", NULL, 0, AV_OPT_TYPE_CONST,
751
        { .i64 = EXTRACT }, .flags = FLAGS, .unit = "disp_or" },
752
753
    { "rotate", "Set rotation in display orientation SEI (anticlockwise angle in degrees)",
754
        OFFSET(rotate), AV_OPT_TYPE_DOUBLE,
755
        { .dbl = NAN }, -360.0, +360.0, FLAGS },
756
    { "flip", "Set flip in display orientation SEI",
757
        OFFSET(flip), AV_OPT_TYPE_FLAGS,
758
        { .i64 = 0 }, 0, FLIP_HORIZONTAL | FLIP_VERTICAL, FLAGS, "flip" },
759
    { "horizontal", "Set hor_flip",
760
        0, AV_OPT_TYPE_CONST,
761
        { .i64 = FLIP_HORIZONTAL }, .flags = FLAGS, .unit = "flip" },
762
    { "vertical",   "Set ver_flip",
763
        0, AV_OPT_TYPE_CONST,
764
        { .i64 = FLIP_VERTICAL },   .flags = FLAGS, .unit = "flip" },
765
766
    { "level", "Set level (table A-1)",
767
        OFFSET(level), AV_OPT_TYPE_INT,
768
        { .i64 = LEVEL_UNSET }, LEVEL_UNSET, 0xff, FLAGS, "level" },
769
    { "auto", "Attempt to guess level from stream properties",
770
        0, AV_OPT_TYPE_CONST,
771
        { .i64 = LEVEL_AUTO }, .flags = FLAGS, .unit = "level" },
772
#define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
773
        { .i64 = value },      .flags = FLAGS, .unit = "level"
774
    { LEVEL("1",   10) },
775
    { LEVEL("1b",   9) },
776
    { LEVEL("1.1", 11) },
777
    { LEVEL("1.2", 12) },
778
    { LEVEL("1.3", 13) },
779
    { LEVEL("2",   20) },
780
    { LEVEL("2.1", 21) },
781
    { LEVEL("2.2", 22) },
782
    { LEVEL("3",   30) },
783
    { LEVEL("3.1", 31) },
784
    { LEVEL("3.2", 32) },
785
    { LEVEL("4",   40) },
786
    { LEVEL("4.1", 41) },
787
    { LEVEL("4.2", 42) },
788
    { LEVEL("5",   50) },
789
    { LEVEL("5.1", 51) },
790
    { LEVEL("5.2", 52) },
791
    { LEVEL("6",   60) },
792
    { LEVEL("6.1", 61) },
793
    { LEVEL("6.2", 62) },
794
#undef LEVEL
795
796
    { NULL }
797
};
798
799
static const AVClass h264_metadata_class = {
800
    .class_name = "h264_metadata_bsf",
801
    .item_name  = av_default_item_name,
802
    .option     = h264_metadata_options,
803
    .version    = LIBAVUTIL_VERSION_INT,
804
};
805
806
static const enum AVCodecID h264_metadata_codec_ids[] = {
807
    AV_CODEC_ID_H264, AV_CODEC_ID_NONE,
808
};
809
810
const AVBitStreamFilter ff_h264_metadata_bsf = {
811
    .name           = "h264_metadata",
812
    .priv_data_size = sizeof(H264MetadataContext),
813
    .priv_class     = &h264_metadata_class,
814
    .init           = &h264_metadata_init,
815
    .close          = &h264_metadata_close,
816
    .filter         = &h264_metadata_filter,
817
    .codec_ids      = h264_metadata_codec_ids,
818
};