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;
61 int video_full_range_flag;
63 int transfer_characteristics;
64 int matrix_coefficients;
66 int chroma_sample_loc_type;
69 int fixed_frame_rate_flag;
76 const char *sei_user_data;
80 int display_orientation;
85 } H264MetadataContext;
88 static int h264_metadata_update_sps(AVBSFContext *bsf,
91 H264MetadataContext *ctx = bsf->priv_data;
93 int crop_unit_x, crop_unit_y;
95 if (ctx->sample_aspect_ratio.num && ctx->sample_aspect_ratio.den) {
97 static const AVRational sar_idc[] = {
98 { 0, 0 }, // Unspecified (never written here).
99 { 1, 1 }, { 12, 11 }, { 10, 11 }, { 16, 11 },
100 { 40, 33 }, { 24, 11 }, { 20, 11 }, { 32, 11 },
101 { 80, 33 }, { 18, 11 }, { 15, 11 }, { 64, 33 },
102 { 160, 99 }, { 4, 3 }, { 3, 2 }, { 2, 1 },
106 av_reduce(&num, &den, ctx->sample_aspect_ratio.num,
107 ctx->sample_aspect_ratio.den, 65535);
109 for (i = 1; i < FF_ARRAY_ELEMS(sar_idc); i++) {
110 if (num == sar_idc[i].num &&
111 den == sar_idc[i].den)
114 if (i == FF_ARRAY_ELEMS(sar_idc)) {
115 sps->vui.aspect_ratio_idc = 255;
116 sps->vui.sar_width = num;
117 sps->vui.sar_height = den;
119 sps->vui.aspect_ratio_idc = i;
121 sps->vui.aspect_ratio_info_present_flag = 1;
125 #define SET_OR_INFER(field, value, present_flag, infer) do { \
129 } else if (!present_flag) \
133 if (ctx->video_format >= 0 ||
134 ctx->video_full_range_flag >= 0 ||
135 ctx->colour_primaries >= 0 ||
136 ctx->transfer_characteristics >= 0 ||
137 ctx->matrix_coefficients >= 0) {
139 SET_OR_INFER(sps->vui.video_format, ctx->video_format,
140 sps->vui.video_signal_type_present_flag, 5);
142 SET_OR_INFER(sps->vui.video_full_range_flag,
143 ctx->video_full_range_flag,
144 sps->vui.video_signal_type_present_flag, 0);
146 if (ctx->colour_primaries >= 0 ||
147 ctx->transfer_characteristics >= 0 ||
148 ctx->matrix_coefficients >= 0) {
150 SET_OR_INFER(sps->vui.colour_primaries,
151 ctx->colour_primaries,
152 sps->vui.colour_description_present_flag, 2);
154 SET_OR_INFER(sps->vui.transfer_characteristics,
155 ctx->transfer_characteristics,
156 sps->vui.colour_description_present_flag, 2);
158 SET_OR_INFER(sps->vui.matrix_coefficients,
159 ctx->matrix_coefficients,
160 sps->vui.colour_description_present_flag, 2);
162 sps->vui.colour_description_present_flag = 1;
164 sps->vui.video_signal_type_present_flag = 1;
168 if (ctx->chroma_sample_loc_type >= 0) {
169 sps->vui.chroma_sample_loc_type_top_field =
170 ctx->chroma_sample_loc_type;
171 sps->vui.chroma_sample_loc_type_bottom_field =
172 ctx->chroma_sample_loc_type;
173 sps->vui.chroma_loc_info_present_flag = 1;
177 if (ctx->tick_rate.num && ctx->tick_rate.den) {
180 av_reduce(&num, &den, ctx->tick_rate.num, ctx->tick_rate.den,
181 UINT32_MAX > INT_MAX ? UINT32_MAX : INT_MAX);
183 sps->vui.time_scale = num;
184 sps->vui.num_units_in_tick = den;
186 sps->vui.timing_info_present_flag = 1;
189 SET_OR_INFER(sps->vui.fixed_frame_rate_flag,
190 ctx->fixed_frame_rate_flag,
191 sps->vui.timing_info_present_flag, 0);
193 if (sps->separate_colour_plane_flag || sps->chroma_format_idc == 0) {
195 crop_unit_y = 2 - sps->frame_mbs_only_flag;
197 crop_unit_x = 1 + (sps->chroma_format_idc < 3);
198 crop_unit_y = (1 + (sps->chroma_format_idc < 2)) *
199 (2 - sps->frame_mbs_only_flag);
201 #define CROP(border, unit) do { \
202 if (ctx->crop_ ## border >= 0) { \
203 if (ctx->crop_ ## border % unit != 0) { \
204 av_log(bsf, AV_LOG_ERROR, "Invalid value for crop_%s: " \
205 "must be a multiple of %d.\n", #border, unit); \
206 return AVERROR(EINVAL); \
208 sps->frame_crop_ ## border ## _offset = \
209 ctx->crop_ ## border / unit; \
210 sps->frame_cropping_flag = 1; \
213 CROP(left, crop_unit_x);
214 CROP(right, crop_unit_x);
215 CROP(top, crop_unit_y);
216 CROP(bottom, crop_unit_y);
219 if (ctx->level != LEVEL_UNSET) {
222 if (ctx->level == LEVEL_AUTO) {
223 const H264LevelDescriptor *desc;
225 int width, height, dpb_frames;
227 if (sps->vui.nal_hrd_parameters_present_flag) {
228 bit_rate = (sps->vui.nal_hrd_parameters.bit_rate_value_minus1[0] + 1) *
229 (INT64_C(1) << (sps->vui.nal_hrd_parameters.bit_rate_scale + 6));
230 } else if (sps->vui.vcl_hrd_parameters_present_flag) {
231 bit_rate = (sps->vui.vcl_hrd_parameters.bit_rate_value_minus1[0] + 1) *
232 (INT64_C(1) << (sps->vui.vcl_hrd_parameters.bit_rate_scale + 6));
233 // Adjust for VCL vs. NAL limits.
234 bit_rate = bit_rate * 6 / 5;
239 // Don't use max_dec_frame_buffering if it is only inferred.
240 dpb_frames = sps->vui.bitstream_restriction_flag ?
241 sps->vui.max_dec_frame_buffering : H264_MAX_DPB_FRAMES;
243 width = 16 * (sps->pic_width_in_mbs_minus1 + 1);
244 height = 16 * (sps->pic_height_in_map_units_minus1 + 1) *
245 (2 - sps->frame_mbs_only_flag);
247 desc = ff_h264_guess_level(sps->profile_idc, bit_rate,
248 width, height, dpb_frames);
250 level_idc = desc->level_idc;
252 av_log(bsf, AV_LOG_WARNING, "Stream does not appear to "
253 "conform to any level: using level 6.2.\n");
257 level_idc = ctx->level;
260 if (level_idc == 9) {
261 if (sps->profile_idc == 66 ||
262 sps->profile_idc == 77 ||
263 sps->profile_idc == 88) {
265 sps->constraint_set3_flag = 1;
270 sps->level_idc = level_idc;
275 sps->vui_parameters_present_flag = 1;
280 static int h264_metadata_filter(AVBSFContext *bsf, AVPacket *out)
282 H264MetadataContext *ctx = bsf->priv_data;
284 CodedBitstreamFragment *au = &ctx->access_unit;
285 int err, i, j, has_sps;
287 uint8_t *displaymatrix_side_data = NULL;
288 size_t displaymatrix_side_data_size = 0;
290 err = ff_bsf_get_packet(bsf, &in);
294 err = ff_cbs_read_packet(ctx->cbc, au, in);
296 av_log(bsf, AV_LOG_ERROR, "Failed to read packet.\n");
300 if (au->nb_units == 0) {
301 av_log(bsf, AV_LOG_ERROR, "No NAL units in packet.\n");
302 err = AVERROR_INVALIDDATA;
306 // If an AUD is present, it must be the first NAL unit.
307 if (au->units[0].type == H264_NAL_AUD) {
308 if (ctx->aud == REMOVE)
309 ff_cbs_delete_unit(ctx->cbc, au, 0);
311 if (ctx->aud == INSERT) {
312 static const int primary_pic_type_table[] = {
315 0x0e7, // 0, 1, 2, 5, 6, 7
319 0x3bd, // 0, 2, 3, 4, 5, 7, 8, 9
320 0x3ff, // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
322 int primary_pic_type_mask = 0xff;
324 for (i = 0; i < au->nb_units; i++) {
325 if (au->units[i].type == H264_NAL_SLICE ||
326 au->units[i].type == H264_NAL_IDR_SLICE) {
327 H264RawSlice *slice = au->units[i].content;
328 for (j = 0; j < FF_ARRAY_ELEMS(primary_pic_type_table); j++) {
329 if (!(primary_pic_type_table[j] &
330 (1 << slice->header.slice_type)))
331 primary_pic_type_mask &= ~(1 << j);
335 for (j = 0; j < FF_ARRAY_ELEMS(primary_pic_type_table); j++)
336 if (primary_pic_type_mask & (1 << j))
338 if (j >= FF_ARRAY_ELEMS(primary_pic_type_table)) {
339 av_log(bsf, AV_LOG_ERROR, "No usable primary_pic_type: "
340 "invalid slice types?\n");
341 err = AVERROR_INVALIDDATA;
346 .nal_unit_header.nal_unit_type = H264_NAL_AUD,
347 .primary_pic_type = j,
350 err = ff_cbs_insert_unit_content(ctx->cbc, au,
351 0, H264_NAL_AUD, &aud, NULL);
353 av_log(bsf, AV_LOG_ERROR, "Failed to insert AUD.\n");
360 for (i = 0; i < au->nb_units; i++) {
361 if (au->units[i].type == H264_NAL_SPS) {
362 err = h264_metadata_update_sps(bsf, au->units[i].content);
369 // Only insert the SEI in access units containing SPSs, and also
370 // unconditionally in the first access unit we ever see.
371 if (ctx->sei_user_data && (has_sps || !ctx->done_first_au)) {
372 H264RawSEIPayload payload = {
373 .payload_type = H264_SEI_TYPE_USER_DATA_UNREGISTERED,
375 H264RawSEIUserDataUnregistered *udu =
376 &payload.payload.user_data_unregistered;
378 for (i = j = 0; j < 32 && ctx->sei_user_data[i]; i++) {
380 c = ctx->sei_user_data[i];
383 } else if (av_isxdigit(c)) {
385 v = (c <= '9' ? c - '0' : c - 'a' + 10);
387 goto invalid_user_data;
390 udu->uuid_iso_iec_11578[j / 2] |= v;
392 udu->uuid_iso_iec_11578[j / 2] = v << 4;
395 if (j == 32 && ctx->sei_user_data[i] == '+') {
396 size_t len = strlen(ctx->sei_user_data + i + 1);
398 udu->data_ref = av_buffer_alloc(len + 1);
399 if (!udu->data_ref) {
400 err = AVERROR(ENOMEM);
404 udu->data = udu->data_ref->data;
405 udu->data_length = len + 1;
406 memcpy(udu->data, ctx->sei_user_data + i + 1, len + 1);
408 err = ff_cbs_h264_add_sei_message(ctx->cbc, au, &payload);
410 av_log(bsf, AV_LOG_ERROR, "Failed to add user data SEI "
411 "message to access unit.\n");
417 av_log(bsf, AV_LOG_ERROR, "Invalid user data: "
418 "must be \"UUID+string\".\n");
419 err = AVERROR(EINVAL);
424 if (ctx->delete_filler) {
425 for (i = 0; i < au->nb_units; i++) {
426 if (au->units[i].type == H264_NAL_FILLER_DATA) {
428 err = ff_cbs_delete_unit(ctx->cbc, au, i);
430 av_log(bsf, AV_LOG_ERROR, "Failed to delete "
438 if (au->units[i].type == H264_NAL_SEI) {
439 // Filler SEI messages.
440 H264RawSEI *sei = au->units[i].content;
442 for (j = 0; j < sei->payload_count; j++) {
443 if (sei->payload[j].payload_type ==
444 H264_SEI_TYPE_FILLER_PAYLOAD) {
445 err = ff_cbs_h264_delete_sei_message(ctx->cbc, au,
448 av_log(bsf, AV_LOG_ERROR, "Failed to delete "
449 "filler SEI message.\n");
452 // Renumbering might have happened, start again at
453 // the same NAL unit position.
462 if (ctx->display_orientation != PASS) {
463 for (i = 0; i < au->nb_units; i++) {
465 if (au->units[i].type != H264_NAL_SEI)
467 sei = au->units[i].content;
469 for (j = 0; j < sei->payload_count; j++) {
470 H264RawSEIDisplayOrientation *disp;
473 if (sei->payload[j].payload_type !=
474 H264_SEI_TYPE_DISPLAY_ORIENTATION)
476 disp = &sei->payload[j].payload.display_orientation;
478 if (ctx->display_orientation == REMOVE ||
479 ctx->display_orientation == INSERT) {
480 err = ff_cbs_h264_delete_sei_message(ctx->cbc, au,
483 av_log(bsf, AV_LOG_ERROR, "Failed to delete "
484 "display orientation SEI message.\n");
491 matrix = av_mallocz(9 * sizeof(int32_t));
493 err = AVERROR(ENOMEM);
497 av_display_rotation_set(matrix,
498 disp->anticlockwise_rotation *
500 av_display_matrix_flip(matrix, disp->hor_flip, disp->ver_flip);
502 // If there are multiple display orientation messages in an
503 // access unit then ignore all but the last one.
504 av_freep(&displaymatrix_side_data);
506 displaymatrix_side_data = (uint8_t*)matrix;
507 displaymatrix_side_data_size = 9 * sizeof(int32_t);
511 if (ctx->display_orientation == INSERT) {
512 H264RawSEIPayload payload = {
513 .payload_type = H264_SEI_TYPE_DISPLAY_ORIENTATION,
515 H264RawSEIDisplayOrientation *disp =
516 &payload.payload.display_orientation;
521 data = av_packet_get_side_data(in, AV_PKT_DATA_DISPLAYMATRIX, &size);
522 if (data && size >= 9 * sizeof(int32_t)) {
527 memcpy(matrix, data, sizeof(matrix));
530 if (matrix[0] < 0 && matrix[4] > 0)
532 else if (matrix[0] > 0 && matrix[4] < 0)
534 av_display_matrix_flip(matrix, hflip, vflip);
536 angle = av_display_rotation_get(matrix);
538 if (!(angle >= -180.0 && angle <= 180.0 /* also excludes NaN */) ||
539 matrix[2] != 0 || matrix[5] != 0 ||
540 matrix[6] != 0 || matrix[7] != 0) {
541 av_log(bsf, AV_LOG_WARNING, "Input display matrix is not "
542 "representable in H.264 parameters.\n");
544 disp->hor_flip = hflip;
545 disp->ver_flip = vflip;
546 disp->anticlockwise_rotation =
547 (uint16_t)rint((angle >= 0.0 ? angle
554 if (has_sps || !ctx->done_first_au) {
555 if (!isnan(ctx->rotate)) {
556 disp->anticlockwise_rotation =
557 (uint16_t)rint((ctx->rotate >= 0.0 ? ctx->rotate
558 : ctx->rotate + 360.0) *
563 disp->hor_flip = !!(ctx->flip & FLIP_HORIZONTAL);
564 disp->ver_flip = !!(ctx->flip & FLIP_VERTICAL);
570 disp->display_orientation_repetition_period = 1;
572 err = ff_cbs_h264_add_sei_message(ctx->cbc, au, &payload);
574 av_log(bsf, AV_LOG_ERROR, "Failed to add display orientation "
575 "SEI message to access unit.\n");
581 err = ff_cbs_write_packet(ctx->cbc, out, au);
583 av_log(bsf, AV_LOG_ERROR, "Failed to write packet.\n");
587 err = av_packet_copy_props(out, in);
591 if (displaymatrix_side_data) {
592 err = av_packet_add_side_data(out, AV_PKT_DATA_DISPLAYMATRIX,
593 displaymatrix_side_data,
594 displaymatrix_side_data_size);
596 av_log(bsf, AV_LOG_ERROR, "Failed to attach extracted "
597 "displaymatrix side data to packet.\n");
600 displaymatrix_side_data = NULL;
603 ctx->done_first_au = 1;
607 ff_cbs_fragment_uninit(ctx->cbc, au);
608 av_freep(&displaymatrix_side_data);
611 av_packet_unref(out);
617 static int h264_metadata_init(AVBSFContext *bsf)
619 H264MetadataContext *ctx = bsf->priv_data;
620 CodedBitstreamFragment *au = &ctx->access_unit;
623 err = ff_cbs_init(&ctx->cbc, AV_CODEC_ID_H264, bsf);
627 if (bsf->par_in->extradata) {
628 err = ff_cbs_read_extradata(ctx->cbc, au, bsf->par_in);
630 av_log(bsf, AV_LOG_ERROR, "Failed to read extradata.\n");
634 for (i = 0; i < au->nb_units; i++) {
635 if (au->units[i].type == H264_NAL_SPS) {
636 err = h264_metadata_update_sps(bsf, au->units[i].content);
642 err = ff_cbs_write_extradata(ctx->cbc, bsf->par_out, au);
644 av_log(bsf, AV_LOG_ERROR, "Failed to write extradata.\n");
651 ff_cbs_fragment_uninit(ctx->cbc, au);
655 static void h264_metadata_close(AVBSFContext *bsf)
657 H264MetadataContext *ctx = bsf->priv_data;
658 ff_cbs_close(&ctx->cbc);
661 #define OFFSET(x) offsetof(H264MetadataContext, x)
662 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_BSF_PARAM)
663 static const AVOption h264_metadata_options[] = {
664 { "aud", "Access Unit Delimiter NAL units",
665 OFFSET(aud), AV_OPT_TYPE_INT,
666 { .i64 = PASS }, PASS, REMOVE, FLAGS, "aud" },
667 { "pass", NULL, 0, AV_OPT_TYPE_CONST,
668 { .i64 = PASS }, .flags = FLAGS, .unit = "aud" },
669 { "insert", NULL, 0, AV_OPT_TYPE_CONST,
670 { .i64 = INSERT }, .flags = FLAGS, .unit = "aud" },
671 { "remove", NULL, 0, AV_OPT_TYPE_CONST,
672 { .i64 = REMOVE }, .flags = FLAGS, .unit = "aud" },
674 { "sample_aspect_ratio", "Set sample aspect ratio (table E-1)",
675 OFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL,
676 { .dbl = 0.0 }, 0, 65535, FLAGS },
678 { "video_format", "Set video format (table E-2)",
679 OFFSET(video_format), AV_OPT_TYPE_INT,
680 { .i64 = -1 }, -1, 7, FLAGS},
681 { "video_full_range_flag", "Set video full range flag",
682 OFFSET(video_full_range_flag), AV_OPT_TYPE_INT,
683 { .i64 = -1 }, -1, 1, FLAGS },
684 { "colour_primaries", "Set colour primaries (table E-3)",
685 OFFSET(colour_primaries), AV_OPT_TYPE_INT,
686 { .i64 = -1 }, -1, 255, FLAGS },
687 { "transfer_characteristics", "Set transfer characteristics (table E-4)",
688 OFFSET(transfer_characteristics), AV_OPT_TYPE_INT,
689 { .i64 = -1 }, -1, 255, FLAGS },
690 { "matrix_coefficients", "Set matrix coefficients (table E-5)",
691 OFFSET(matrix_coefficients), AV_OPT_TYPE_INT,
692 { .i64 = -1 }, -1, 255, FLAGS },
694 { "chroma_sample_loc_type", "Set chroma sample location type (figure E-1)",
695 OFFSET(chroma_sample_loc_type), AV_OPT_TYPE_INT,
696 { .i64 = -1 }, -1, 6, FLAGS },
698 { "tick_rate", "Set VUI tick rate (num_units_in_tick / time_scale)",
699 OFFSET(tick_rate), AV_OPT_TYPE_RATIONAL,
700 { .dbl = 0.0 }, 0, UINT_MAX, FLAGS },
701 { "fixed_frame_rate_flag", "Set VUI fixed frame rate flag",
702 OFFSET(fixed_frame_rate_flag), AV_OPT_TYPE_INT,
703 { .i64 = -1 }, -1, 1, FLAGS },
705 { "crop_left", "Set left border crop offset",
706 OFFSET(crop_left), AV_OPT_TYPE_INT,
707 { .i64 = -1 }, -1, H264_MAX_WIDTH, FLAGS },
708 { "crop_right", "Set right border crop offset",
709 OFFSET(crop_right), AV_OPT_TYPE_INT,
710 { .i64 = -1 }, -1, H264_MAX_WIDTH, FLAGS },
711 { "crop_top", "Set top border crop offset",
712 OFFSET(crop_top), AV_OPT_TYPE_INT,
713 { .i64 = -1 }, -1, H264_MAX_HEIGHT, FLAGS },
714 { "crop_bottom", "Set bottom border crop offset",
715 OFFSET(crop_bottom), AV_OPT_TYPE_INT,
716 { .i64 = -1 }, -1, H264_MAX_HEIGHT, FLAGS },
718 { "sei_user_data", "Insert SEI user data (UUID+string)",
719 OFFSET(sei_user_data), AV_OPT_TYPE_STRING, { .str = NULL }, .flags = FLAGS },
721 { "delete_filler", "Delete all filler (both NAL and SEI)",
722 OFFSET(delete_filler), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS},
724 { "display_orientation", "Display orientation SEI",
725 OFFSET(display_orientation), AV_OPT_TYPE_INT,
726 { .i64 = PASS }, PASS, EXTRACT, FLAGS, "disp_or" },
727 { "pass", NULL, 0, AV_OPT_TYPE_CONST,
728 { .i64 = PASS }, .flags = FLAGS, .unit = "disp_or" },
729 { "insert", NULL, 0, AV_OPT_TYPE_CONST,
730 { .i64 = INSERT }, .flags = FLAGS, .unit = "disp_or" },
731 { "remove", NULL, 0, AV_OPT_TYPE_CONST,
732 { .i64 = REMOVE }, .flags = FLAGS, .unit = "disp_or" },
733 { "extract", NULL, 0, AV_OPT_TYPE_CONST,
734 { .i64 = EXTRACT }, .flags = FLAGS, .unit = "disp_or" },
736 { "rotate", "Set rotation in display orientation SEI (anticlockwise angle in degrees)",
737 OFFSET(rotate), AV_OPT_TYPE_DOUBLE,
738 { .dbl = NAN }, -360.0, +360.0, FLAGS },
739 { "flip", "Set flip in display orientation SEI",
740 OFFSET(flip), AV_OPT_TYPE_FLAGS,
741 { .i64 = 0 }, 0, FLIP_HORIZONTAL | FLIP_VERTICAL, FLAGS, "flip" },
742 { "horizontal", "Set hor_flip",
743 0, AV_OPT_TYPE_CONST,
744 { .i64 = FLIP_HORIZONTAL }, .flags = FLAGS, .unit = "flip" },
745 { "vertical", "Set ver_flip",
746 0, AV_OPT_TYPE_CONST,
747 { .i64 = FLIP_VERTICAL }, .flags = FLAGS, .unit = "flip" },
749 { "level", "Set level (table A-1)",
750 OFFSET(level), AV_OPT_TYPE_INT,
751 { .i64 = LEVEL_UNSET }, LEVEL_UNSET, 0xff, FLAGS, "level" },
752 { "auto", "Attempt to guess level from stream properties",
753 0, AV_OPT_TYPE_CONST,
754 { .i64 = LEVEL_AUTO }, .flags = FLAGS, .unit = "level" },
755 #define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
756 { .i64 = value }, .flags = FLAGS, .unit = "level"
759 { LEVEL("1.1", 11) },
760 { LEVEL("1.2", 12) },
761 { LEVEL("1.3", 13) },
763 { LEVEL("2.1", 21) },
764 { LEVEL("2.2", 22) },
766 { LEVEL("3.1", 31) },
767 { LEVEL("3.2", 32) },
769 { LEVEL("4.1", 41) },
770 { LEVEL("4.2", 42) },
772 { LEVEL("5.1", 51) },
773 { LEVEL("5.2", 52) },
775 { LEVEL("6.1", 61) },
776 { LEVEL("6.2", 62) },
782 static const AVClass h264_metadata_class = {
783 .class_name = "h264_metadata_bsf",
784 .item_name = av_default_item_name,
785 .option = h264_metadata_options,
786 .version = LIBAVUTIL_VERSION_INT,
789 static const enum AVCodecID h264_metadata_codec_ids[] = {
790 AV_CODEC_ID_H264, AV_CODEC_ID_NONE,
793 const AVBitStreamFilter ff_h264_metadata_bsf = {
794 .name = "h264_metadata",
795 .priv_data_size = sizeof(H264MetadataContext),
796 .priv_class = &h264_metadata_class,
797 .init = &h264_metadata_init,
798 .close = &h264_metadata_close,
799 .filter = &h264_metadata_filter,
800 .codec_ids = h264_metadata_codec_ids,