2017-07-23 15:23:51 +00:00
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/*
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* This file is part of Libav.
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*
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* Libav 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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* Libav 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 Libav; 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/common.h"
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#include "libavutil/opt.h"
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#include "bsf.h"
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#include "cbs.h"
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#include "cbs_h265.h"
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#include "hevc.h"
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enum {
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PASS,
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INSERT,
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REMOVE,
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};
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typedef struct H265MetadataContext {
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const AVClass *class;
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2017-11-09 01:03:57 +00:00
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CodedBitstreamContext *cbc;
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2017-07-23 15:23:51 +00:00
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CodedBitstreamFragment access_unit;
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H265RawAUD aud_nal;
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int aud;
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AVRational sample_aspect_ratio;
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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 poc_proportional_to_timing_flag;
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int num_ticks_poc_diff_one;
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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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} H265MetadataContext;
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static int h265_metadata_update_vps(AVBSFContext *bsf,
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H265RawVPS *vps)
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{
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H265MetadataContext *ctx = bsf->priv_data;
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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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vps->vps_time_scale = num;
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vps->vps_num_units_in_tick = den;
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vps->vps_timing_info_present_flag = 1;
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if (ctx->num_ticks_poc_diff_one > 0) {
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vps->vps_num_ticks_poc_diff_one_minus1 =
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ctx->num_ticks_poc_diff_one - 1;
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vps->vps_poc_proportional_to_timing_flag = 1;
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} else if (ctx->num_ticks_poc_diff_one == 0) {
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vps->vps_poc_proportional_to_timing_flag = 0;
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}
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}
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return 0;
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}
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static int h265_metadata_update_sps(AVBSFContext *bsf,
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H265RawSPS *sps)
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{
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H265MetadataContext *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_OR_INFER(field, value, present_flag, infer) do { \
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if (value >= 0) { \
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field = value; \
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need_vui = 1; \
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} else if (!present_flag) \
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field = infer; \
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} while (0)
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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_OR_INFER(sps->vui.video_format, ctx->video_format,
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sps->vui.video_signal_type_present_flag, 5);
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SET_OR_INFER(sps->vui.video_full_range_flag,
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ctx->video_full_range_flag,
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sps->vui.video_signal_type_present_flag, 0);
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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_OR_INFER(sps->vui.colour_primaries,
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ctx->colour_primaries,
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sps->vui.colour_description_present_flag, 2);
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SET_OR_INFER(sps->vui.transfer_characteristics,
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ctx->transfer_characteristics,
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sps->vui.colour_description_present_flag, 2);
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SET_OR_INFER(sps->vui.matrix_coefficients,
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ctx->matrix_coefficients,
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sps->vui.colour_description_present_flag, 2);
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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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need_vui = 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.vui_time_scale = num;
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sps->vui.vui_num_units_in_tick = den;
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sps->vui.vui_timing_info_present_flag = 1;
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need_vui = 1;
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if (ctx->num_ticks_poc_diff_one > 0) {
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sps->vui.vui_num_ticks_poc_diff_one_minus1 =
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ctx->num_ticks_poc_diff_one - 1;
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sps->vui.vui_poc_proportional_to_timing_flag = 1;
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} else if (ctx->num_ticks_poc_diff_one == 0) {
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sps->vui.vui_poc_proportional_to_timing_flag = 0;
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}
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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 = 1;
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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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}
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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->conf_win_ ## border ## _offset = \
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ctx->crop_ ## border / unit; \
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sps->conformance_window_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 (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 h265_metadata_filter(AVBSFContext *bsf, AVPacket *out)
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{
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H265MetadataContext *ctx = bsf->priv_data;
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AVPacket *in = NULL;
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CodedBitstreamFragment *au = &ctx->access_unit;
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int err, i;
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err = ff_bsf_get_packet(bsf, &in);
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if (err < 0)
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goto fail;
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2017-11-09 01:03:57 +00:00
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err = ff_cbs_read_packet(ctx->cbc, au, in);
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2017-07-23 15:23:51 +00:00
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if (err < 0) {
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av_log(bsf, AV_LOG_ERROR, "Failed to read packet.\n");
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goto fail;
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}
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if (au->nb_units == 0) {
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av_log(bsf, AV_LOG_ERROR, "No NAL units in packet.\n");
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err = AVERROR_INVALIDDATA;
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goto fail;
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}
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// If an AUD is present, it must be the first NAL unit.
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if (au->units[0].type == HEVC_NAL_AUD) {
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if (ctx->aud == REMOVE)
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2017-11-09 01:03:57 +00:00
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ff_cbs_delete_unit(ctx->cbc, au, 0);
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2017-07-23 15:23:51 +00:00
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} else {
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if (ctx->aud == INSERT) {
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H265RawAUD *aud = &ctx->aud_nal;
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int pic_type = 0, temporal_id = 8, layer_id = 0;
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for (i = 0; i < au->nb_units; i++) {
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const H265RawNALUnitHeader *nal = au->units[i].content;
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if (!nal)
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continue;
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if (nal->nuh_temporal_id_plus1 < temporal_id + 1)
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temporal_id = nal->nuh_temporal_id_plus1 - 1;
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if (au->units[i].type <= HEVC_NAL_RSV_VCL31) {
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const H265RawSlice *slice = au->units[i].content;
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layer_id = nal->nuh_layer_id;
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if (slice->header.slice_type == HEVC_SLICE_B &&
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pic_type < 2)
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pic_type = 2;
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if (slice->header.slice_type == HEVC_SLICE_P &&
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pic_type < 1)
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pic_type = 1;
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}
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}
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aud->nal_unit_header = (H265RawNALUnitHeader) {
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.nal_unit_type = HEVC_NAL_AUD,
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.nuh_layer_id = layer_id,
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.nuh_temporal_id_plus1 = temporal_id + 1,
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};
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aud->pic_type = pic_type;
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2017-11-09 01:03:57 +00:00
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err = ff_cbs_insert_unit_content(ctx->cbc, au,
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2017-07-23 15:23:51 +00:00
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0, HEVC_NAL_AUD, aud);
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if (err) {
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av_log(bsf, AV_LOG_ERROR, "Failed to insert AUD.\n");
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goto fail;
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}
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}
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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 == HEVC_NAL_VPS) {
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err = h265_metadata_update_vps(bsf, au->units[i].content);
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if (err < 0)
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goto fail;
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}
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if (au->units[i].type == HEVC_NAL_SPS) {
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err = h265_metadata_update_sps(bsf, au->units[i].content);
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if (err < 0)
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goto fail;
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}
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}
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2017-11-09 01:03:57 +00:00
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err = ff_cbs_write_packet(ctx->cbc, out, au);
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2017-07-23 15:23:51 +00:00
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if (err < 0) {
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av_log(bsf, AV_LOG_ERROR, "Failed to write packet.\n");
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goto fail;
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}
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err = av_packet_copy_props(out, in);
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if (err < 0)
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goto fail;
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err = 0;
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fail:
|
2017-11-09 01:03:57 +00:00
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ff_cbs_fragment_uninit(ctx->cbc, au);
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2017-07-23 15:23:51 +00:00
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av_packet_free(&in);
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return err;
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}
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static int h265_metadata_init(AVBSFContext *bsf)
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{
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H265MetadataContext *ctx = bsf->priv_data;
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CodedBitstreamFragment *au = &ctx->access_unit;
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int err, i;
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err = ff_cbs_init(&ctx->cbc, AV_CODEC_ID_HEVC, bsf);
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if (err < 0)
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return err;
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if (bsf->par_in->extradata) {
|
2017-11-09 01:03:57 +00:00
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err = ff_cbs_read_extradata(ctx->cbc, au, bsf->par_in);
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2017-07-23 15:23:51 +00:00
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if (err < 0) {
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av_log(bsf, AV_LOG_ERROR, "Failed to read extradata.\n");
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goto fail;
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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 == HEVC_NAL_VPS) {
|
|
|
|
err = h265_metadata_update_vps(bsf, au->units[i].content);
|
|
|
|
if (err < 0)
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
if (au->units[i].type == HEVC_NAL_SPS) {
|
|
|
|
err = h265_metadata_update_sps(bsf, au->units[i].content);
|
|
|
|
if (err < 0)
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-11-09 01:03:57 +00:00
|
|
|
err = ff_cbs_write_extradata(ctx->cbc, bsf->par_out, au);
|
2017-07-23 15:23:51 +00:00
|
|
|
if (err < 0) {
|
|
|
|
av_log(bsf, AV_LOG_ERROR, "Failed to write extradata.\n");
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
err = 0;
|
|
|
|
fail:
|
2017-11-09 01:03:57 +00:00
|
|
|
ff_cbs_fragment_uninit(ctx->cbc, au);
|
2017-07-23 15:23:51 +00:00
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void h265_metadata_close(AVBSFContext *bsf)
|
|
|
|
{
|
|
|
|
H265MetadataContext *ctx = bsf->priv_data;
|
|
|
|
ff_cbs_close(&ctx->cbc);
|
|
|
|
}
|
|
|
|
|
|
|
|
#define OFFSET(x) offsetof(H265MetadataContext, x)
|
|
|
|
static const AVOption h265_metadata_options[] = {
|
|
|
|
{ "aud", "Access Unit Delimiter NAL units",
|
|
|
|
OFFSET(aud), AV_OPT_TYPE_INT,
|
|
|
|
{ .i64 = PASS }, PASS, REMOVE, 0, "aud" },
|
|
|
|
{ "pass", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PASS }, .unit = "aud" },
|
|
|
|
{ "insert", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = INSERT }, .unit = "aud" },
|
|
|
|
{ "remove", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = REMOVE }, .unit = "aud" },
|
|
|
|
|
|
|
|
{ "sample_aspect_ratio", "Set sample aspect ratio (table E-1)",
|
|
|
|
OFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL,
|
|
|
|
{ .i64 = 0 }, 0, 65535 },
|
|
|
|
|
|
|
|
{ "video_format", "Set video format (table E-2)",
|
|
|
|
OFFSET(video_format), AV_OPT_TYPE_INT,
|
|
|
|
{ .i64 = -1 }, -1, 7 },
|
|
|
|
{ "video_full_range_flag", "Set video full range flag",
|
|
|
|
OFFSET(video_full_range_flag), AV_OPT_TYPE_INT,
|
|
|
|
{ .i64 = -1 }, -1, 1 },
|
|
|
|
{ "colour_primaries", "Set colour primaries (table E-3)",
|
|
|
|
OFFSET(colour_primaries), AV_OPT_TYPE_INT,
|
|
|
|
{ .i64 = -1 }, -1, 255 },
|
|
|
|
{ "transfer_characteristics", "Set transfer characteristics (table E-4)",
|
|
|
|
OFFSET(transfer_characteristics), AV_OPT_TYPE_INT,
|
|
|
|
{ .i64 = -1 }, -1, 255 },
|
|
|
|
{ "matrix_coefficients", "Set matrix coefficients (table E-5)",
|
|
|
|
OFFSET(matrix_coefficients), AV_OPT_TYPE_INT,
|
|
|
|
{ .i64 = -1 }, -1, 255 },
|
|
|
|
|
|
|
|
{ "chroma_sample_loc_type", "Set chroma sample location type (figure E-1)",
|
|
|
|
OFFSET(chroma_sample_loc_type), AV_OPT_TYPE_INT,
|
|
|
|
{ .i64 = -1 }, -1, 6 },
|
|
|
|
|
|
|
|
{ "tick_rate",
|
|
|
|
"Set VPS and VUI tick rate (num_units_in_tick / time_scale)",
|
|
|
|
OFFSET(tick_rate), AV_OPT_TYPE_RATIONAL,
|
|
|
|
{ .i64 = 0 }, 0, UINT_MAX },
|
|
|
|
{ "num_ticks_poc_diff_one",
|
|
|
|
"Set VPS and VUI number of ticks per POC increment",
|
|
|
|
OFFSET(num_ticks_poc_diff_one), AV_OPT_TYPE_INT,
|
|
|
|
{ .i64 = -1 }, -1, INT_MAX },
|
|
|
|
|
|
|
|
{ "crop_left", "Set left border crop offset",
|
|
|
|
OFFSET(crop_left), AV_OPT_TYPE_INT,
|
|
|
|
{ .i64 = -1 }, -1, HEVC_MAX_WIDTH },
|
|
|
|
{ "crop_right", "Set right border crop offset",
|
|
|
|
OFFSET(crop_right), AV_OPT_TYPE_INT,
|
|
|
|
{ .i64 = -1 }, -1, HEVC_MAX_WIDTH },
|
|
|
|
{ "crop_top", "Set top border crop offset",
|
|
|
|
OFFSET(crop_top), AV_OPT_TYPE_INT,
|
|
|
|
{ .i64 = -1 }, -1, HEVC_MAX_HEIGHT },
|
|
|
|
{ "crop_bottom", "Set bottom border crop offset",
|
|
|
|
OFFSET(crop_bottom), AV_OPT_TYPE_INT,
|
|
|
|
{ .i64 = -1 }, -1, HEVC_MAX_HEIGHT },
|
|
|
|
|
|
|
|
{ NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static const AVClass h265_metadata_class = {
|
|
|
|
.class_name = "h265_metadata_bsf",
|
|
|
|
.item_name = av_default_item_name,
|
|
|
|
.option = h265_metadata_options,
|
|
|
|
.version = LIBAVCODEC_VERSION_MAJOR,
|
|
|
|
};
|
|
|
|
|
|
|
|
static const enum AVCodecID h265_metadata_codec_ids[] = {
|
|
|
|
AV_CODEC_ID_HEVC, AV_CODEC_ID_NONE,
|
|
|
|
};
|
|
|
|
|
|
|
|
const AVBitStreamFilter ff_hevc_metadata_bsf = {
|
|
|
|
.name = "hevc_metadata",
|
|
|
|
.priv_data_size = sizeof(H265MetadataContext),
|
|
|
|
.priv_class = &h265_metadata_class,
|
|
|
|
.init = &h265_metadata_init,
|
|
|
|
.close = &h265_metadata_close,
|
|
|
|
.filter = &h265_metadata_filter,
|
|
|
|
.codec_ids = h265_metadata_codec_ids,
|
|
|
|
};
|