2 * This file is part of FFmpeg.
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.
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.
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
19 #include "libavutil/avstring.h"
20 #include "libavutil/display.h"
21 #include "libavutil/common.h"
22 #include "libavutil/opt.h"
28 #include "h264_levels.h"
48 typedef struct H264MetadataContext {
51 CodedBitstreamContext *cbc;
52 CodedBitstreamFragment access_unit;
58 AVRational sample_aspect_ratio;
60 int overscan_appropriate_flag;
63 int video_full_range_flag;
65 int transfer_characteristics;
66 int matrix_coefficients;
68 int chroma_sample_loc_type;
71 int fixed_frame_rate_flag;
78 const char *sei_user_data;
82 int display_orientation;
87 } H264MetadataContext;
90 static int h264_metadata_update_sps(AVBSFContext *bsf,
93 H264MetadataContext *ctx = bsf->priv_data;
95 int crop_unit_x, crop_unit_y;
97 if (ctx->sample_aspect_ratio.num && ctx->sample_aspect_ratio.den) {
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 },
108 av_reduce(&num, &den, ctx->sample_aspect_ratio.num,
109 ctx->sample_aspect_ratio.den, 65535);
111 for (i = 1; i < FF_ARRAY_ELEMS(sar_idc); i++) {
112 if (num == sar_idc[i].num &&
113 den == sar_idc[i].den)
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;
121 sps->vui.aspect_ratio_idc = i;
123 sps->vui.aspect_ratio_info_present_flag = 1;
127 #define SET_VUI_FIELD(field) do { \
128 if (ctx->field >= 0) { \
129 sps->vui.field = ctx->field; \
134 if (ctx->overscan_appropriate_flag >= 0) {
135 SET_VUI_FIELD(overscan_appropriate_flag);
136 sps->vui.overscan_info_present_flag = 1;
139 if (ctx->video_format >= 0 ||
140 ctx->video_full_range_flag >= 0 ||
141 ctx->colour_primaries >= 0 ||
142 ctx->transfer_characteristics >= 0 ||
143 ctx->matrix_coefficients >= 0) {
145 SET_VUI_FIELD(video_format);
147 SET_VUI_FIELD(video_full_range_flag);
149 if (ctx->colour_primaries >= 0 ||
150 ctx->transfer_characteristics >= 0 ||
151 ctx->matrix_coefficients >= 0) {
153 SET_VUI_FIELD(colour_primaries);
154 SET_VUI_FIELD(transfer_characteristics);
155 SET_VUI_FIELD(matrix_coefficients);
157 sps->vui.colour_description_present_flag = 1;
159 sps->vui.video_signal_type_present_flag = 1;
162 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;
171 if (ctx->tick_rate.num && ctx->tick_rate.den) {
174 av_reduce(&num, &den, ctx->tick_rate.num, ctx->tick_rate.den,
175 UINT32_MAX > INT_MAX ? UINT32_MAX : INT_MAX);
177 sps->vui.time_scale = num;
178 sps->vui.num_units_in_tick = den;
180 sps->vui.timing_info_present_flag = 1;
183 SET_VUI_FIELD(fixed_frame_rate_flag);
185 if (sps->separate_colour_plane_flag || sps->chroma_format_idc == 0) {
187 crop_unit_y = 2 - sps->frame_mbs_only_flag;
189 crop_unit_x = 1 + (sps->chroma_format_idc < 3);
190 crop_unit_y = (1 + (sps->chroma_format_idc < 2)) *
191 (2 - sps->frame_mbs_only_flag);
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); \
200 sps->frame_crop_ ## border ## _offset = \
201 ctx->crop_ ## border / unit; \
202 sps->frame_cropping_flag = 1; \
205 CROP(left, crop_unit_x);
206 CROP(right, crop_unit_x);
207 CROP(top, crop_unit_y);
208 CROP(bottom, crop_unit_y);
211 if (ctx->level != LEVEL_UNSET) {
214 if (ctx->level == LEVEL_AUTO) {
215 const H264LevelDescriptor *desc;
217 int width, height, dpb_frames;
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;
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;
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);
240 if (sps->vui.timing_info_present_flag)
241 framerate = sps->vui.time_scale / sps->vui.num_units_in_tick / 2;
245 desc = ff_h264_guess_level(sps->profile_idc, bit_rate, framerate,
246 width, height, dpb_frames);
248 level_idc = desc->level_idc;
250 av_log(bsf, AV_LOG_WARNING, "Stream does not appear to "
251 "conform to any level: using level 6.2.\n");
255 level_idc = ctx->level;
258 if (level_idc == 9) {
259 if (sps->profile_idc == 66 ||
260 sps->profile_idc == 77 ||
261 sps->profile_idc == 88) {
263 sps->constraint_set3_flag = 1;
268 sps->level_idc = level_idc;
273 sps->vui_parameters_present_flag = 1;
278 static int h264_metadata_filter(AVBSFContext *bsf, AVPacket *pkt)
280 H264MetadataContext *ctx = bsf->priv_data;
281 CodedBitstreamFragment *au = &ctx->access_unit;
282 int err, i, j, has_sps;
285 err = ff_bsf_get_packet_ref(bsf, pkt);
289 err = ff_cbs_read_packet(ctx->cbc, au, pkt);
291 av_log(bsf, AV_LOG_ERROR, "Failed to read packet.\n");
295 if (au->nb_units == 0) {
296 av_log(bsf, AV_LOG_ERROR, "No NAL units in packet.\n");
297 err = AVERROR_INVALIDDATA;
301 // If an AUD is present, it must be the first NAL unit.
302 if (au->units[0].type == H264_NAL_AUD) {
303 if (ctx->aud == REMOVE)
304 ff_cbs_delete_unit(ctx->cbc, au, 0);
306 if (ctx->aud == INSERT) {
307 static const int primary_pic_type_table[] = {
310 0x0e7, // 0, 1, 2, 5, 6, 7
314 0x3bd, // 0, 2, 3, 4, 5, 7, 8, 9
315 0x3ff, // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
317 int primary_pic_type_mask = 0xff;
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);
330 for (j = 0; j < FF_ARRAY_ELEMS(primary_pic_type_table); j++)
331 if (primary_pic_type_mask & (1 << j))
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;
341 .nal_unit_header.nal_unit_type = H264_NAL_AUD,
342 .primary_pic_type = j,
345 err = ff_cbs_insert_unit_content(ctx->cbc, au,
346 0, H264_NAL_AUD, &aud, NULL);
348 av_log(bsf, AV_LOG_ERROR, "Failed to insert AUD.\n");
355 for (i = 0; i < au->nb_units; i++) {
356 if (au->units[i].type == H264_NAL_SPS) {
357 err = h264_metadata_update_sps(bsf, au->units[i].content);
364 // Only insert the SEI in access units containing SPSs, and also
365 // unconditionally in the first access unit we ever see.
366 if (ctx->sei_user_data && (has_sps || !ctx->done_first_au)) {
367 H264RawSEIPayload payload = {
368 .payload_type = H264_SEI_TYPE_USER_DATA_UNREGISTERED,
370 H264RawSEIUserDataUnregistered *udu =
371 &payload.payload.user_data_unregistered;
373 for (i = j = 0; j < 32 && ctx->sei_user_data[i]; i++) {
375 c = ctx->sei_user_data[i];
378 } else if (av_isxdigit(c)) {
380 v = (c <= '9' ? c - '0' : c - 'a' + 10);
382 goto invalid_user_data;
385 udu->uuid_iso_iec_11578[j / 2] |= v;
387 udu->uuid_iso_iec_11578[j / 2] = v << 4;
390 if (j == 32 && ctx->sei_user_data[i] == '+') {
391 size_t len = strlen(ctx->sei_user_data + i + 1);
393 udu->data_ref = av_buffer_alloc(len + 1);
394 if (!udu->data_ref) {
395 err = AVERROR(ENOMEM);
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);
403 err = ff_cbs_h264_add_sei_message(ctx->cbc, au, &payload);
405 av_log(bsf, AV_LOG_ERROR, "Failed to add user data SEI "
406 "message to access unit.\n");
412 av_log(bsf, AV_LOG_ERROR, "Invalid user data: "
413 "must be \"UUID+string\".\n");
414 err = AVERROR(EINVAL);
419 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);
426 if (au->units[i].type == H264_NAL_SEI) {
427 // Filler SEI messages.
428 H264RawSEI *sei = au->units[i].content;
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,
440 if (ctx->display_orientation != PASS) {
441 for (i = au->nb_units - 1; i >= 0; i--) {
443 if (au->units[i].type != H264_NAL_SEI)
445 sei = au->units[i].content;
447 for (j = sei->payload_count - 1; j >= 0; j--) {
448 H264RawSEIDisplayOrientation *disp;
451 if (sei->payload[j].payload_type !=
452 H264_SEI_TYPE_DISPLAY_ORIENTATION)
454 disp = &sei->payload[j].payload.display_orientation;
456 if (ctx->display_orientation == REMOVE ||
457 ctx->display_orientation == INSERT) {
458 ff_cbs_h264_delete_sei_message(ctx->cbc, au,
463 matrix = av_malloc(9 * sizeof(int32_t));
465 err = AVERROR(ENOMEM);
469 av_display_rotation_set(matrix,
470 disp->anticlockwise_rotation *
472 av_display_matrix_flip(matrix, disp->hor_flip, disp->ver_flip);
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,
479 9 * sizeof(int32_t));
481 av_log(bsf, AV_LOG_ERROR, "Failed to attach extracted "
482 "displaymatrix side data to packet.\n");
489 if (ctx->display_orientation == INSERT) {
490 H264RawSEIPayload payload = {
491 .payload_type = H264_SEI_TYPE_DISPLAY_ORIENTATION,
493 H264RawSEIDisplayOrientation *disp =
494 &payload.payload.display_orientation;
499 data = av_packet_get_side_data(pkt, AV_PKT_DATA_DISPLAYMATRIX, &size);
500 if (data && size >= 9 * sizeof(int32_t)) {
505 memcpy(matrix, data, sizeof(matrix));
508 if (matrix[0] < 0 && matrix[4] > 0)
510 else if (matrix[0] > 0 && matrix[4] < 0)
512 av_display_matrix_flip(matrix, hflip, vflip);
514 angle = av_display_rotation_get(matrix);
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");
522 disp->hor_flip = hflip;
523 disp->ver_flip = vflip;
524 disp->anticlockwise_rotation =
525 (uint16_t)rint((angle >= 0.0 ? angle
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) *
541 disp->hor_flip = !!(ctx->flip & FLIP_HORIZONTAL);
542 disp->ver_flip = !!(ctx->flip & FLIP_VERTICAL);
548 disp->display_orientation_repetition_period = 1;
550 err = ff_cbs_h264_add_sei_message(ctx->cbc, au, &payload);
552 av_log(bsf, AV_LOG_ERROR, "Failed to add display orientation "
553 "SEI message to access unit.\n");
559 err = ff_cbs_write_packet(ctx->cbc, pkt, au);
561 av_log(bsf, AV_LOG_ERROR, "Failed to write packet.\n");
565 ctx->done_first_au = 1;
569 ff_cbs_fragment_reset(ctx->cbc, au);
572 av_packet_unref(pkt);
577 static int h264_metadata_init(AVBSFContext *bsf)
579 H264MetadataContext *ctx = bsf->priv_data;
580 CodedBitstreamFragment *au = &ctx->access_unit;
583 err = ff_cbs_init(&ctx->cbc, AV_CODEC_ID_H264, bsf);
587 if (bsf->par_in->extradata) {
588 err = ff_cbs_read_extradata(ctx->cbc, au, bsf->par_in);
590 av_log(bsf, AV_LOG_ERROR, "Failed to read extradata.\n");
594 for (i = 0; i < au->nb_units; i++) {
595 if (au->units[i].type == H264_NAL_SPS) {
596 err = h264_metadata_update_sps(bsf, au->units[i].content);
602 err = ff_cbs_write_extradata(ctx->cbc, bsf->par_out, au);
604 av_log(bsf, AV_LOG_ERROR, "Failed to write extradata.\n");
611 ff_cbs_fragment_reset(ctx->cbc, au);
615 static void h264_metadata_close(AVBSFContext *bsf)
617 H264MetadataContext *ctx = bsf->priv_data;
619 ff_cbs_fragment_free(ctx->cbc, &ctx->access_unit);
620 ff_cbs_close(&ctx->cbc);
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" },
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 },
640 { "overscan_appropriate_flag", "Set VUI overscan appropriate flag",
641 OFFSET(overscan_appropriate_flag), AV_OPT_TYPE_INT,
642 { .i64 = -1 }, -1, 1, FLAGS },
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 },
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 },
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 },
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 },
684 { "sei_user_data", "Insert SEI user data (UUID+string)",
685 OFFSET(sei_user_data), AV_OPT_TYPE_STRING, { .str = NULL }, .flags = FLAGS },
687 { "delete_filler", "Delete all filler (both NAL and SEI)",
688 OFFSET(delete_filler), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS},
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" },
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" },
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"
725 { LEVEL("1.1", 11) },
726 { LEVEL("1.2", 12) },
727 { LEVEL("1.3", 13) },
729 { LEVEL("2.1", 21) },
730 { LEVEL("2.2", 22) },
732 { LEVEL("3.1", 31) },
733 { LEVEL("3.2", 32) },
735 { LEVEL("4.1", 41) },
736 { LEVEL("4.2", 42) },
738 { LEVEL("5.1", 51) },
739 { LEVEL("5.2", 52) },
741 { LEVEL("6.1", 61) },
742 { LEVEL("6.2", 62) },
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,
755 static const enum AVCodecID h264_metadata_codec_ids[] = {
756 AV_CODEC_ID_H264, AV_CODEC_ID_NONE,
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,