mirror of
https://github.com/FFmpeg/FFmpeg.git
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729 lines
25 KiB
C
729 lines
25 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/avstring.h"
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#include "libavutil/display.h"
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#include "libavutil/common.h"
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#include "libavutil/opt.h"
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#include "bsf.h"
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#include "bsf_internal.h"
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#include "cbs.h"
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#include "cbs_bsf.h"
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#include "cbs_h264.h"
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#include "h264.h"
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#include "h264_levels.h"
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#include "h264_sei.h"
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enum {
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FLIP_HORIZONTAL = 1,
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FLIP_VERTICAL = 2,
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};
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enum {
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LEVEL_UNSET = -2,
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LEVEL_AUTO = -1,
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};
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typedef struct H264MetadataContext {
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CBSBSFContext common;
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int done_first_au;
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int aud;
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H264RawAUD aud_nal;
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AVRational sample_aspect_ratio;
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int overscan_appropriate_flag;
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int video_format;
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int video_full_range_flag;
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int colour_primaries;
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int transfer_characteristics;
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int matrix_coefficients;
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int chroma_sample_loc_type;
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AVRational tick_rate;
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int fixed_frame_rate_flag;
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int zero_new_constraint_set_flags;
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int crop_left;
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int crop_right;
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int crop_top;
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int crop_bottom;
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const char *sei_user_data;
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SEIRawUserDataUnregistered sei_user_data_payload;
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int delete_filler;
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int display_orientation;
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double rotate;
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int flip;
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H264RawSEIDisplayOrientation display_orientation_payload;
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int level;
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} H264MetadataContext;
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static int h264_metadata_insert_aud(AVBSFContext *bsf,
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CodedBitstreamFragment *au)
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{
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H264MetadataContext *ctx = bsf->priv_data;
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int primary_pic_type_mask = 0xff;
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int err, i, j;
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static const int primary_pic_type_table[] = {
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0x084, // 2, 7
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0x0a5, // 0, 2, 5, 7
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0x0e7, // 0, 1, 2, 5, 6, 7
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0x210, // 4, 9
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0x318, // 3, 4, 8, 9
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0x294, // 2, 4, 7, 9
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0x3bd, // 0, 2, 3, 4, 5, 7, 8, 9
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0x3ff, // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
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};
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for (i = 0; i < au->nb_units; i++) {
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if (au->units[i].type == H264_NAL_SLICE ||
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au->units[i].type == H264_NAL_IDR_SLICE) {
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H264RawSlice *slice = au->units[i].content;
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for (j = 0; j < FF_ARRAY_ELEMS(primary_pic_type_table); j++) {
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if (!(primary_pic_type_table[j] &
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(1 << slice->header.slice_type)))
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primary_pic_type_mask &= ~(1 << j);
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}
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}
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}
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for (j = 0; j < FF_ARRAY_ELEMS(primary_pic_type_table); j++)
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if (primary_pic_type_mask & (1 << j))
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break;
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if (j >= FF_ARRAY_ELEMS(primary_pic_type_table)) {
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av_log(bsf, AV_LOG_ERROR, "No usable primary_pic_type: "
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"invalid slice types?\n");
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return AVERROR_INVALIDDATA;
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}
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ctx->aud_nal = (H264RawAUD) {
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.nal_unit_header.nal_unit_type = H264_NAL_AUD,
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.primary_pic_type = j,
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};
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err = ff_cbs_insert_unit_content(au, 0, H264_NAL_AUD,
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&ctx->aud_nal, NULL);
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if (err < 0) {
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av_log(bsf, AV_LOG_ERROR, "Failed to insert AUD.\n");
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return err;
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}
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return 0;
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}
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static int h264_metadata_update_sps(AVBSFContext *bsf,
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H264RawSPS *sps)
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{
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H264MetadataContext *ctx = bsf->priv_data;
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int need_vui = 0;
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int crop_unit_x, crop_unit_y;
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if (ctx->sample_aspect_ratio.num && ctx->sample_aspect_ratio.den) {
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// Table E-1.
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static const AVRational sar_idc[] = {
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{ 0, 0 }, // Unspecified (never written here).
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{ 1, 1 }, { 12, 11 }, { 10, 11 }, { 16, 11 },
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{ 40, 33 }, { 24, 11 }, { 20, 11 }, { 32, 11 },
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{ 80, 33 }, { 18, 11 }, { 15, 11 }, { 64, 33 },
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{ 160, 99 }, { 4, 3 }, { 3, 2 }, { 2, 1 },
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};
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int num, den, i;
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av_reduce(&num, &den, ctx->sample_aspect_ratio.num,
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ctx->sample_aspect_ratio.den, 65535);
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for (i = 1; i < FF_ARRAY_ELEMS(sar_idc); i++) {
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if (num == sar_idc[i].num &&
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den == sar_idc[i].den)
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break;
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}
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if (i == FF_ARRAY_ELEMS(sar_idc)) {
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sps->vui.aspect_ratio_idc = 255;
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sps->vui.sar_width = num;
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sps->vui.sar_height = den;
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} else {
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sps->vui.aspect_ratio_idc = i;
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}
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sps->vui.aspect_ratio_info_present_flag = 1;
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need_vui = 1;
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}
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#define SET_VUI_FIELD(field) do { \
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if (ctx->field >= 0) { \
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sps->vui.field = ctx->field; \
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need_vui = 1; \
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} \
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} while (0)
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if (ctx->overscan_appropriate_flag >= 0) {
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SET_VUI_FIELD(overscan_appropriate_flag);
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sps->vui.overscan_info_present_flag = 1;
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}
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if (ctx->video_format >= 0 ||
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ctx->video_full_range_flag >= 0 ||
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ctx->colour_primaries >= 0 ||
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ctx->transfer_characteristics >= 0 ||
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ctx->matrix_coefficients >= 0) {
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SET_VUI_FIELD(video_format);
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SET_VUI_FIELD(video_full_range_flag);
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if (ctx->colour_primaries >= 0 ||
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ctx->transfer_characteristics >= 0 ||
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ctx->matrix_coefficients >= 0) {
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SET_VUI_FIELD(colour_primaries);
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SET_VUI_FIELD(transfer_characteristics);
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SET_VUI_FIELD(matrix_coefficients);
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sps->vui.colour_description_present_flag = 1;
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}
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sps->vui.video_signal_type_present_flag = 1;
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}
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if (ctx->chroma_sample_loc_type >= 0) {
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sps->vui.chroma_sample_loc_type_top_field =
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ctx->chroma_sample_loc_type;
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sps->vui.chroma_sample_loc_type_bottom_field =
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ctx->chroma_sample_loc_type;
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sps->vui.chroma_loc_info_present_flag = 1;
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need_vui = 1;
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}
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if (ctx->tick_rate.num && ctx->tick_rate.den) {
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int num, den;
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av_reduce(&num, &den, ctx->tick_rate.num, ctx->tick_rate.den,
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UINT32_MAX > INT_MAX ? UINT32_MAX : INT_MAX);
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sps->vui.time_scale = num;
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sps->vui.num_units_in_tick = den;
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sps->vui.timing_info_present_flag = 1;
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need_vui = 1;
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}
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SET_VUI_FIELD(fixed_frame_rate_flag);
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if (ctx->zero_new_constraint_set_flags) {
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sps->constraint_set4_flag = 0;
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sps->constraint_set5_flag = 0;
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}
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if (sps->separate_colour_plane_flag || sps->chroma_format_idc == 0) {
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crop_unit_x = 1;
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crop_unit_y = 2 - sps->frame_mbs_only_flag;
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} else {
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crop_unit_x = 1 + (sps->chroma_format_idc < 3);
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crop_unit_y = (1 + (sps->chroma_format_idc < 2)) *
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(2 - sps->frame_mbs_only_flag);
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}
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#define CROP(border, unit) do { \
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if (ctx->crop_ ## border >= 0) { \
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if (ctx->crop_ ## border % unit != 0) { \
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av_log(bsf, AV_LOG_ERROR, "Invalid value for crop_%s: " \
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"must be a multiple of %d.\n", #border, unit); \
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return AVERROR(EINVAL); \
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} \
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sps->frame_crop_ ## border ## _offset = \
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ctx->crop_ ## border / unit; \
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sps->frame_cropping_flag = 1; \
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} \
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} while (0)
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CROP(left, crop_unit_x);
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CROP(right, crop_unit_x);
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CROP(top, crop_unit_y);
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CROP(bottom, crop_unit_y);
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#undef CROP
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if (ctx->level != LEVEL_UNSET) {
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int level_idc;
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if (ctx->level == LEVEL_AUTO) {
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const H264LevelDescriptor *desc;
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int64_t bit_rate;
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int width, height, dpb_frames;
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int framerate;
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if (sps->vui.nal_hrd_parameters_present_flag) {
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bit_rate = (sps->vui.nal_hrd_parameters.bit_rate_value_minus1[0] + 1) *
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(INT64_C(1) << (sps->vui.nal_hrd_parameters.bit_rate_scale + 6));
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} else if (sps->vui.vcl_hrd_parameters_present_flag) {
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bit_rate = (sps->vui.vcl_hrd_parameters.bit_rate_value_minus1[0] + 1) *
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(INT64_C(1) << (sps->vui.vcl_hrd_parameters.bit_rate_scale + 6));
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// Adjust for VCL vs. NAL limits.
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bit_rate = bit_rate * 6 / 5;
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} else {
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bit_rate = 0;
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}
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// Don't use max_dec_frame_buffering if it is only inferred.
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dpb_frames = sps->vui.bitstream_restriction_flag ?
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sps->vui.max_dec_frame_buffering : H264_MAX_DPB_FRAMES;
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width = 16 * (sps->pic_width_in_mbs_minus1 + 1);
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height = 16 * (sps->pic_height_in_map_units_minus1 + 1) *
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(2 - sps->frame_mbs_only_flag);
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if (sps->vui.timing_info_present_flag)
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framerate = sps->vui.time_scale / sps->vui.num_units_in_tick / 2;
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else
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framerate = 0;
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desc = ff_h264_guess_level(sps->profile_idc, bit_rate, framerate,
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width, height, dpb_frames);
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if (desc) {
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level_idc = desc->level_idc;
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} else {
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av_log(bsf, AV_LOG_WARNING, "Stream does not appear to "
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"conform to any level: using level 6.2.\n");
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level_idc = 62;
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}
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} else {
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level_idc = ctx->level;
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}
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if (level_idc == 9) {
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if (sps->profile_idc == 66 ||
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sps->profile_idc == 77 ||
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sps->profile_idc == 88) {
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sps->level_idc = 11;
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sps->constraint_set3_flag = 1;
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} else {
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sps->level_idc = 9;
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}
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} else {
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sps->level_idc = level_idc;
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}
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}
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if (need_vui)
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sps->vui_parameters_present_flag = 1;
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return 0;
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}
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static int h264_metadata_handle_display_orientation(AVBSFContext *bsf,
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AVPacket *pkt,
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CodedBitstreamFragment *au,
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int seek_point)
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{
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H264MetadataContext *ctx = bsf->priv_data;
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SEIRawMessage *message;
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int err;
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message = NULL;
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while (ff_cbs_sei_find_message(ctx->common.output, au,
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SEI_TYPE_DISPLAY_ORIENTATION,
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&message) == 0) {
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H264RawSEIDisplayOrientation *disp = message->payload;
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double angle = disp->anticlockwise_rotation * 180.0 / 65536.0;
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int32_t *matrix;
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matrix = av_malloc(9 * sizeof(int32_t));
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if (!matrix)
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return AVERROR(ENOMEM);
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/* av_display_rotation_set() expects the angle in the clockwise
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* direction, hence the first minus.
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* The below code applies the flips after the rotation, yet
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* the H.2645 specs require flipping to be applied first.
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* Because of R O(phi) = O(-phi) R (where R is flipping around
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* an arbitatry axis and O(phi) is the proper rotation by phi)
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* we can create display matrices as desired by negating
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* the degree once for every flip applied. */
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angle = -angle * (1 - 2 * !!disp->hor_flip) * (1 - 2 * !!disp->ver_flip);
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av_display_rotation_set(matrix, angle);
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av_display_matrix_flip(matrix, disp->hor_flip, disp->ver_flip);
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// If there are multiple display orientation messages in an
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// access unit, then the last one added to the packet (i.e.
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// the first one in the access unit) will prevail.
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err = av_packet_add_side_data(pkt, AV_PKT_DATA_DISPLAYMATRIX,
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(uint8_t*)matrix,
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9 * sizeof(int32_t));
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if (err < 0) {
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av_log(bsf, AV_LOG_ERROR, "Failed to attach extracted "
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"displaymatrix side data to packet.\n");
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av_free(matrix);
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return AVERROR(ENOMEM);
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}
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}
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if (ctx->display_orientation == BSF_ELEMENT_REMOVE ||
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ctx->display_orientation == BSF_ELEMENT_INSERT) {
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ff_cbs_sei_delete_message_type(ctx->common.output, au,
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SEI_TYPE_DISPLAY_ORIENTATION);
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}
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if (ctx->display_orientation == BSF_ELEMENT_INSERT) {
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H264RawSEIDisplayOrientation *disp =
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&ctx->display_orientation_payload;
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uint8_t *data;
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size_t size;
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int write = 0;
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data = av_packet_get_side_data(pkt, AV_PKT_DATA_DISPLAYMATRIX, &size);
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if (data && size >= 9 * sizeof(int32_t)) {
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int32_t matrix[9];
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double dmatrix[9];
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int hflip, vflip, i;
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double scale_x, scale_y, angle;
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memcpy(matrix, data, sizeof(matrix));
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for (i = 0; i < 9; i++)
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dmatrix[i] = matrix[i] / 65536.0;
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// Extract scale factors.
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scale_x = hypot(dmatrix[0], dmatrix[3]);
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scale_y = hypot(dmatrix[1], dmatrix[4]);
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// Select flips to make the main diagonal positive.
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hflip = dmatrix[0] < 0.0;
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vflip = dmatrix[4] < 0.0;
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if (hflip)
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scale_x = -scale_x;
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if (vflip)
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scale_y = -scale_y;
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// Rescale.
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for (i = 0; i < 9; i += 3) {
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dmatrix[i] /= scale_x;
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dmatrix[i + 1] /= scale_y;
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}
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// Extract rotation.
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angle = atan2(dmatrix[3], dmatrix[0]);
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if (!(angle >= -M_PI && angle <= M_PI) ||
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matrix[2] != 0.0 || matrix[5] != 0.0 ||
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matrix[6] != 0.0 || matrix[7] != 0.0) {
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av_log(bsf, AV_LOG_WARNING, "Input display matrix is not "
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"representable in H.264 parameters.\n");
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} else {
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disp->hor_flip = hflip;
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disp->ver_flip = vflip;
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disp->anticlockwise_rotation =
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(uint16_t)rint((angle >= 0.0 ? angle
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: angle + 2 * M_PI) *
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32768.0 / M_PI);
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write = 1;
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}
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}
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if (seek_point) {
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if (!isnan(ctx->rotate)) {
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disp->anticlockwise_rotation =
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(uint16_t)rint((ctx->rotate >= 0.0 ? ctx->rotate
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: ctx->rotate + 360.0) *
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65536.0 / 360.0);
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write = 1;
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}
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if (ctx->flip) {
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disp->hor_flip = !!(ctx->flip & FLIP_HORIZONTAL);
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disp->ver_flip = !!(ctx->flip & FLIP_VERTICAL);
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write = 1;
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}
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}
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if (write) {
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disp->display_orientation_repetition_period = 1;
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err = ff_cbs_sei_add_message(ctx->common.output, au, 1,
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SEI_TYPE_DISPLAY_ORIENTATION,
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disp, NULL);
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if (err < 0) {
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av_log(bsf, AV_LOG_ERROR, "Failed to add display orientation "
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"SEI message to access unit.\n");
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return err;
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}
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}
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}
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return 0;
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}
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static int h264_metadata_update_fragment(AVBSFContext *bsf, AVPacket *pkt,
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CodedBitstreamFragment *au)
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{
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H264MetadataContext *ctx = bsf->priv_data;
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int err, i, has_sps, seek_point;
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// If an AUD is present, it must be the first NAL unit.
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if (au->nb_units && au->units[0].type == H264_NAL_AUD) {
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if (ctx->aud == BSF_ELEMENT_REMOVE)
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ff_cbs_delete_unit(au, 0);
|
|
} else {
|
|
if (pkt && ctx->aud == BSF_ELEMENT_INSERT) {
|
|
err = h264_metadata_insert_aud(bsf, au);
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
}
|
|
|
|
has_sps = 0;
|
|
for (i = 0; i < au->nb_units; i++) {
|
|
if (au->units[i].type == H264_NAL_SPS) {
|
|
err = h264_metadata_update_sps(bsf, au->units[i].content);
|
|
if (err < 0)
|
|
return err;
|
|
has_sps = 1;
|
|
}
|
|
}
|
|
|
|
if (pkt) {
|
|
// The current packet should be treated as a seek point for metadata
|
|
// insertion if any of:
|
|
// - It is the first packet in the stream.
|
|
// - It contains an SPS, indicating that a sequence might start here.
|
|
// - It is marked as containing a key frame.
|
|
seek_point = !ctx->done_first_au || has_sps ||
|
|
(pkt->flags & AV_PKT_FLAG_KEY);
|
|
} else {
|
|
seek_point = 0;
|
|
}
|
|
|
|
if (ctx->sei_user_data && seek_point) {
|
|
err = ff_cbs_sei_add_message(ctx->common.output, au, 1,
|
|
SEI_TYPE_USER_DATA_UNREGISTERED,
|
|
&ctx->sei_user_data_payload, NULL);
|
|
if (err < 0) {
|
|
av_log(bsf, AV_LOG_ERROR, "Failed to add user data SEI "
|
|
"message to access unit.\n");
|
|
return err;
|
|
}
|
|
}
|
|
|
|
if (ctx->delete_filler) {
|
|
for (i = au->nb_units - 1; i >= 0; i--) {
|
|
if (au->units[i].type == H264_NAL_FILLER_DATA) {
|
|
ff_cbs_delete_unit(au, i);
|
|
continue;
|
|
}
|
|
}
|
|
|
|
ff_cbs_sei_delete_message_type(ctx->common.output, au,
|
|
SEI_TYPE_FILLER_PAYLOAD);
|
|
}
|
|
|
|
if (pkt && ctx->display_orientation != BSF_ELEMENT_PASS) {
|
|
err = h264_metadata_handle_display_orientation(bsf, pkt, au,
|
|
seek_point);
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
|
|
if (pkt)
|
|
ctx->done_first_au = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const CBSBSFType h264_metadata_type = {
|
|
.codec_id = AV_CODEC_ID_H264,
|
|
.fragment_name = "access unit",
|
|
.unit_name = "NAL unit",
|
|
.update_fragment = &h264_metadata_update_fragment,
|
|
};
|
|
|
|
static int h264_metadata_init(AVBSFContext *bsf)
|
|
{
|
|
H264MetadataContext *ctx = bsf->priv_data;
|
|
|
|
if (ctx->sei_user_data) {
|
|
SEIRawUserDataUnregistered *udu = &ctx->sei_user_data_payload;
|
|
int i, j;
|
|
|
|
// Parse UUID. It must be a hex string of length 32, possibly
|
|
// containing '-'s between hex digits (which we ignore).
|
|
for (i = j = 0; j < 32 && i < 64 && ctx->sei_user_data[i]; i++) {
|
|
int c, v;
|
|
c = ctx->sei_user_data[i];
|
|
if (c == '-') {
|
|
continue;
|
|
} else if (av_isxdigit(c)) {
|
|
c = av_tolower(c);
|
|
v = (c <= '9' ? c - '0' : c - 'a' + 10);
|
|
} else {
|
|
break;
|
|
}
|
|
if (j & 1)
|
|
udu->uuid_iso_iec_11578[j / 2] |= v;
|
|
else
|
|
udu->uuid_iso_iec_11578[j / 2] = v << 4;
|
|
++j;
|
|
}
|
|
if (j == 32 && ctx->sei_user_data[i] == '+') {
|
|
udu->data = (uint8_t*)ctx->sei_user_data + i + 1;
|
|
udu->data_length = strlen(udu->data) + 1;
|
|
} else {
|
|
av_log(bsf, AV_LOG_ERROR, "Invalid user data: "
|
|
"must be \"UUID+string\".\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
}
|
|
|
|
return ff_cbs_bsf_generic_init(bsf, &h264_metadata_type);
|
|
}
|
|
|
|
#define OFFSET(x) offsetof(H264MetadataContext, x)
|
|
#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_BSF_PARAM)
|
|
static const AVOption h264_metadata_options[] = {
|
|
BSF_ELEMENT_OPTIONS_PIR("aud", "Access Unit Delimiter NAL units",
|
|
aud, FLAGS),
|
|
|
|
{ "sample_aspect_ratio", "Set sample aspect ratio (table E-1)",
|
|
OFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL,
|
|
{ .dbl = 0.0 }, 0, 65535, FLAGS },
|
|
|
|
{ "overscan_appropriate_flag", "Set VUI overscan appropriate flag",
|
|
OFFSET(overscan_appropriate_flag), AV_OPT_TYPE_INT,
|
|
{ .i64 = -1 }, -1, 1, FLAGS },
|
|
|
|
{ "video_format", "Set video format (table E-2)",
|
|
OFFSET(video_format), AV_OPT_TYPE_INT,
|
|
{ .i64 = -1 }, -1, 7, FLAGS},
|
|
{ "video_full_range_flag", "Set video full range flag",
|
|
OFFSET(video_full_range_flag), AV_OPT_TYPE_INT,
|
|
{ .i64 = -1 }, -1, 1, FLAGS },
|
|
{ "colour_primaries", "Set colour primaries (table E-3)",
|
|
OFFSET(colour_primaries), AV_OPT_TYPE_INT,
|
|
{ .i64 = -1 }, -1, 255, FLAGS },
|
|
{ "transfer_characteristics", "Set transfer characteristics (table E-4)",
|
|
OFFSET(transfer_characteristics), AV_OPT_TYPE_INT,
|
|
{ .i64 = -1 }, -1, 255, FLAGS },
|
|
{ "matrix_coefficients", "Set matrix coefficients (table E-5)",
|
|
OFFSET(matrix_coefficients), AV_OPT_TYPE_INT,
|
|
{ .i64 = -1 }, -1, 255, FLAGS },
|
|
|
|
{ "chroma_sample_loc_type", "Set chroma sample location type (figure E-1)",
|
|
OFFSET(chroma_sample_loc_type), AV_OPT_TYPE_INT,
|
|
{ .i64 = -1 }, -1, 5, FLAGS },
|
|
|
|
{ "tick_rate", "Set VUI tick rate (time_scale / num_units_in_tick)",
|
|
OFFSET(tick_rate), AV_OPT_TYPE_RATIONAL,
|
|
{ .dbl = 0.0 }, 0, UINT_MAX, FLAGS },
|
|
{ "fixed_frame_rate_flag", "Set VUI fixed frame rate flag",
|
|
OFFSET(fixed_frame_rate_flag), AV_OPT_TYPE_INT,
|
|
{ .i64 = -1 }, -1, 1, FLAGS },
|
|
{ "zero_new_constraint_set_flags", "Set constraint_set4_flag / constraint_set5_flag to zero",
|
|
OFFSET(zero_new_constraint_set_flags), AV_OPT_TYPE_BOOL,
|
|
{ .i64 = 0 }, 0, 1, FLAGS },
|
|
|
|
{ "crop_left", "Set left border crop offset",
|
|
OFFSET(crop_left), AV_OPT_TYPE_INT,
|
|
{ .i64 = -1 }, -1, H264_MAX_WIDTH, FLAGS },
|
|
{ "crop_right", "Set right border crop offset",
|
|
OFFSET(crop_right), AV_OPT_TYPE_INT,
|
|
{ .i64 = -1 }, -1, H264_MAX_WIDTH, FLAGS },
|
|
{ "crop_top", "Set top border crop offset",
|
|
OFFSET(crop_top), AV_OPT_TYPE_INT,
|
|
{ .i64 = -1 }, -1, H264_MAX_HEIGHT, FLAGS },
|
|
{ "crop_bottom", "Set bottom border crop offset",
|
|
OFFSET(crop_bottom), AV_OPT_TYPE_INT,
|
|
{ .i64 = -1 }, -1, H264_MAX_HEIGHT, FLAGS },
|
|
|
|
{ "sei_user_data", "Insert SEI user data (UUID+string)",
|
|
OFFSET(sei_user_data), AV_OPT_TYPE_STRING, { .str = NULL }, .flags = FLAGS },
|
|
|
|
{ "delete_filler", "Delete all filler (both NAL and SEI)",
|
|
OFFSET(delete_filler), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS},
|
|
|
|
BSF_ELEMENT_OPTIONS_PIRE("display_orientation",
|
|
"Display orientation SEI",
|
|
display_orientation, FLAGS),
|
|
|
|
{ "rotate", "Set rotation in display orientation SEI (anticlockwise angle in degrees)",
|
|
OFFSET(rotate), AV_OPT_TYPE_DOUBLE,
|
|
{ .dbl = NAN }, -360.0, +360.0, FLAGS },
|
|
{ "flip", "Set flip in display orientation SEI",
|
|
OFFSET(flip), AV_OPT_TYPE_FLAGS,
|
|
{ .i64 = 0 }, 0, FLIP_HORIZONTAL | FLIP_VERTICAL, FLAGS, "flip" },
|
|
{ "horizontal", "Set hor_flip",
|
|
0, AV_OPT_TYPE_CONST,
|
|
{ .i64 = FLIP_HORIZONTAL }, .flags = FLAGS, .unit = "flip" },
|
|
{ "vertical", "Set ver_flip",
|
|
0, AV_OPT_TYPE_CONST,
|
|
{ .i64 = FLIP_VERTICAL }, .flags = FLAGS, .unit = "flip" },
|
|
|
|
{ "level", "Set level (table A-1)",
|
|
OFFSET(level), AV_OPT_TYPE_INT,
|
|
{ .i64 = LEVEL_UNSET }, LEVEL_UNSET, 0xff, FLAGS, "level" },
|
|
{ "auto", "Attempt to guess level from stream properties",
|
|
0, AV_OPT_TYPE_CONST,
|
|
{ .i64 = LEVEL_AUTO }, .flags = FLAGS, .unit = "level" },
|
|
#define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
|
|
{ .i64 = value }, .flags = FLAGS, .unit = "level"
|
|
{ LEVEL("1", 10) },
|
|
{ LEVEL("1b", 9) },
|
|
{ LEVEL("1.1", 11) },
|
|
{ LEVEL("1.2", 12) },
|
|
{ LEVEL("1.3", 13) },
|
|
{ LEVEL("2", 20) },
|
|
{ LEVEL("2.1", 21) },
|
|
{ LEVEL("2.2", 22) },
|
|
{ LEVEL("3", 30) },
|
|
{ LEVEL("3.1", 31) },
|
|
{ LEVEL("3.2", 32) },
|
|
{ LEVEL("4", 40) },
|
|
{ LEVEL("4.1", 41) },
|
|
{ LEVEL("4.2", 42) },
|
|
{ LEVEL("5", 50) },
|
|
{ LEVEL("5.1", 51) },
|
|
{ LEVEL("5.2", 52) },
|
|
{ LEVEL("6", 60) },
|
|
{ LEVEL("6.1", 61) },
|
|
{ LEVEL("6.2", 62) },
|
|
#undef LEVEL
|
|
|
|
{ NULL }
|
|
};
|
|
|
|
static const AVClass h264_metadata_class = {
|
|
.class_name = "h264_metadata_bsf",
|
|
.item_name = av_default_item_name,
|
|
.option = h264_metadata_options,
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
};
|
|
|
|
static const enum AVCodecID h264_metadata_codec_ids[] = {
|
|
AV_CODEC_ID_H264, AV_CODEC_ID_NONE,
|
|
};
|
|
|
|
const FFBitStreamFilter ff_h264_metadata_bsf = {
|
|
.p.name = "h264_metadata",
|
|
.p.codec_ids = h264_metadata_codec_ids,
|
|
.p.priv_class = &h264_metadata_class,
|
|
.priv_data_size = sizeof(H264MetadataContext),
|
|
.init = &h264_metadata_init,
|
|
.close = &ff_cbs_bsf_generic_close,
|
|
.filter = &ff_cbs_bsf_generic_filter,
|
|
};
|