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uvg266/src/encoder_state-bitstream.c

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/*****************************************************************************
* This file is part of uvg266 VVC encoder.
*
* Copyright (c) 2021, Tampere University, ITU/ISO/IEC, project contributors
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* * Neither the name of the Tampere University or ITU/ISO/IEC nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS
****************************************************************************/
#include "encoder_state-bitstream.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "alf.h"
#include "bitstream.h"
#include "cabac.h"
#include "checkpoint.h"
#include "cu.h"
#include "encoder.h"
#include "encoder_state-geometry.h"
#include "encoderstate.h"
#include "imagelist.h"
#include "uvg266.h"
#include "uvg_math.h"
#include "nal.h"
#include "scalinglist.h"
#include "tables.h"
#include "threadqueue.h"
#include "videoframe.h"
#include "reshape.h"
#define JVET_S0266_VUI_length 1
#define LUMA_ADAPTIVE_DEBLOCKING_FILTER_QP_OFFSET 1
#define JVET_S0076_ASPECT1 1
#define JVET_S0193_NO_OUTPUT_PRIOR_PIC 1
#define JVET_S0179_CONDITIONAL_SIGNAL_GCI 1
#define JVET_S0105_GCI_REORDER_IN_CATEGORY 1
#define JVET_S0138_GCI_PTL 1
#define JVET_S_SUB_PROFILE 1
static void encoder_state_write_bitstream_aud(encoder_state_t *const state)
{
bitstream_t *const stream = &state->stream;
uvg_nal_write(stream, UVG_NAL_AUD_NUT, 0, 1);
WRITE_U(stream, 1, 1, "aud_irap_or_gdr_au_flag");
uint8_t pic_type = state->frame->slicetype == UVG_SLICE_I ? 0
: state->frame->slicetype == UVG_SLICE_P ? 1
: 2;
WRITE_U(stream, pic_type, 3, "pic_type");
uvg_bitstream_add_rbsp_trailing_bits(stream);
}
static void encoder_state_write_bitstream_PTL(bitstream_t *stream,
encoder_state_t *const state)
{
// PTL
// Profile Tier
// Main 10 profile == 1
WRITE_U(stream, 1, 7, "general_profile_idc");
WRITE_U(stream, state->encoder_control->cfg.high_tier, 1, "general_tier_flag");
#if !JVET_S0179_CONDITIONAL_SIGNAL_GCI
#if JVET_S0179_CONDITIONAL_SIGNAL_GCI
WRITE_U(stream, 0, 1, "gci_present_flag");
if (0) //if gci_present_flag
{
#endif
#if JVET_S0105_GCI_REORDER_IN_CATEGORY
WRITE_U(stream, 1, 1, "general_progressive_source_flag");
WRITE_U(stream, state->encoder_control->in.source_scan_type != 0, 1, "general_interlaced_source_flag");
// Constraint flags
WRITE_U(stream, 0, 1, "general_non_packed_constraint_flag");
WRITE_U(stream, 0, 1, "general_frame_only_constraint_flag");
WRITE_U(stream, 0, 1, "general_non_projected_constraint_flag");
WRITE_U(stream, 0, 1, "intra_only_constraint_flag");
WRITE_U(stream, 0, 4, "max_bitdepth_constraint_idc");
WRITE_U(stream, 0, 2, "max_chroma_format_constraint_idc");
WRITE_U(stream, 0, 1, "no_res_change_in_clvs_constraint_flag");
WRITE_U(stream, 0, 1, "one_tile_per_pic_constraint_flag");
WRITE_U(stream, 0, 1, "one_slice_per_pic_constraint_flag");
WRITE_U(stream, 0, 1, "one_subpic_per_pic_constraint_flag");
WRITE_U(stream, 0, 1, "no_qtbtt_dual_tree_intra_constraint_flag");
WRITE_U(stream, 0, 1, "no_partition_constraints_override_constraint_flag");
WRITE_U(stream, 0, 1, "no_sao_constraint_flag");
WRITE_U(stream, 0, 1, "no_alf_constraint_flag");
WRITE_U(stream, 0, 1, "no_ccalf_constraint_flag");
WRITE_U(stream, 0, 1, "no_joint_cbcr_constraint_flag");
WRITE_U(stream, 0, 1, "no_ref_wraparound_constraint_flag");
WRITE_U(stream, 0, 1, "no_temporal_mvp_constraint_flag");
WRITE_U(stream, 0, 1, "no_sbtmvp_constraint_flag");
WRITE_U(stream, 0, 1, "no_amvr_constraint_flag");
WRITE_U(stream, 0, 1, "no_bdof_constraint_flag");
WRITE_U(stream, 0, 1, "no_dmvr_constraint_flag");
WRITE_U(stream, 0, 1, "no_cclm_constraint_flag");
WRITE_U(stream, 0, 1, "no_mts_constraint_flag");
WRITE_U(stream, 0, 1, "no_sbt_constraint_flag");
WRITE_U(stream, 0, 1, "no_affine_motion_constraint_flag");
WRITE_U(stream, 0, 1, "no_bcw_constraint_flag");
WRITE_U(stream, 0, 1, "no_ibc_constraint_flag");
WRITE_U(stream, 0, 1, "no_ciip_constraint_flag");
WRITE_U(stream, 0, 1, "no_fpel_mmvd_constraint_flag");
WRITE_U(stream, 0, 1, "no_gpm_constraint_flag");
WRITE_U(stream, 0, 1, "no_ladf_constraint_flag");
WRITE_U(stream, 0, 1, "no_transform_skip_constraint_flag");
WRITE_U(stream, 0, 1, "no_bdpcm_constraint_flag");
WRITE_U(stream, 0, 1, "no_qp_delta_constraint_flag");
WRITE_U(stream, 0, 1, "no_dep_quant_constraint_flag");
WRITE_U(stream, 0, 1, "no_sign_data_hiding_constraint_flag");
WRITE_U(stream, 0, 1, "no_mixed_nalu_types_in_pic_constraint_flag");
WRITE_U(stream, 0, 1, "no_trail_constraint_flag");
WRITE_U(stream, 0, 1, "no_stsa_constraint_flag");
WRITE_U(stream, 0, 1, "no_rasl_constraint_flag");
WRITE_U(stream, 0, 1, "no_radl_constraint_flag");
WRITE_U(stream, 0, 1, "no_idr_constraint_flag");
WRITE_U(stream, 0, 1, "no_cra_constraint_flag");
WRITE_U(stream, 0, 1, "no_gdr_constraint_flag");
WRITE_U(stream, 0, 1, "no_aps_constraint_flag");
#endif
}
uvg_bitstream_align_zero(stream);
#endif
// end Profile Tier
//uint8_t level = state->encoder_control->cfg.level;
// ToDo: level hardcoded to 5.2
WRITE_U(stream, 86, 8, "general_level_idc");
WRITE_U(stream, 0, 1, "ptl_frame_only_constraint_flag");
WRITE_U(stream, 0, 1, "ptl_multilayer_enabled_flag");
#if JVET_S0179_CONDITIONAL_SIGNAL_GCI
#if JVET_S0179_CONDITIONAL_SIGNAL_GCI
WRITE_U(stream, 0, 1, "gci_present_flag");
if (0) //if gci_present_flag
{
#endif
#if JVET_S0105_GCI_REORDER_IN_CATEGORY
WRITE_U(stream, 1, 1, "general_progressive_source_flag");
WRITE_U(stream, state->encoder_control->in.source_scan_type != 0, 1, "general_interlaced_source_flag");
// Constraint flags
WRITE_U(stream, 0, 1, "general_non_packed_constraint_flag");
WRITE_U(stream, 0, 1, "general_frame_only_constraint_flag");
WRITE_U(stream, 0, 1, "general_non_projected_constraint_flag");
WRITE_U(stream, 0, 1, "intra_only_constraint_flag");
WRITE_U(stream, 0, 4, "max_bitdepth_constraint_idc");
WRITE_U(stream, 0, 2, "max_chroma_format_constraint_idc");
WRITE_U(stream, 0, 1, "no_res_change_in_clvs_constraint_flag");
WRITE_U(stream, 0, 1, "one_tile_per_pic_constraint_flag");
WRITE_U(stream, 0, 1, "one_slice_per_pic_constraint_flag");
WRITE_U(stream, 0, 1, "one_subpic_per_pic_constraint_flag");
WRITE_U(stream, 0, 1, "no_qtbtt_dual_tree_intra_constraint_flag");
WRITE_U(stream, 0, 1, "no_partition_constraints_override_constraint_flag");
WRITE_U(stream, 0, 1, "no_sao_constraint_flag");
WRITE_U(stream, 0, 1, "no_alf_constraint_flag");
WRITE_U(stream, 0, 1, "no_ccalf_constraint_flag");
WRITE_U(stream, 0, 1, "no_joint_cbcr_constraint_flag");
WRITE_U(stream, 0, 1, "no_ref_wraparound_constraint_flag");
WRITE_U(stream, 0, 1, "no_temporal_mvp_constraint_flag");
WRITE_U(stream, 0, 1, "no_sbtmvp_constraint_flag");
WRITE_U(stream, 0, 1, "no_amvr_constraint_flag");
WRITE_U(stream, 0, 1, "no_bdof_constraint_flag");
WRITE_U(stream, 0, 1, "no_dmvr_constraint_flag");
WRITE_U(stream, 0, 1, "no_cclm_constraint_flag");
WRITE_U(stream, 0, 1, "no_mts_constraint_flag");
WRITE_U(stream, 0, 1, "no_sbt_constraint_flag");
WRITE_U(stream, 0, 1, "no_affine_motion_constraint_flag");
WRITE_U(stream, 0, 1, "no_bcw_constraint_flag");
WRITE_U(stream, 0, 1, "no_ibc_constraint_flag");
WRITE_U(stream, 0, 1, "no_ciip_constraint_flag");
WRITE_U(stream, 0, 1, "no_fpel_mmvd_constraint_flag");
WRITE_U(stream, 0, 1, "no_gpm_constraint_flag");
WRITE_U(stream, 0, 1, "no_ladf_constraint_flag");
WRITE_U(stream, 0, 1, "no_transform_skip_constraint_flag");
WRITE_U(stream, 0, 1, "no_bdpcm_constraint_flag");
WRITE_U(stream, 0, 1, "no_qp_delta_constraint_flag");
WRITE_U(stream, 0, 1, "no_dep_quant_constraint_flag");
WRITE_U(stream, 0, 1, "no_sign_data_hiding_constraint_flag");
WRITE_U(stream, 0, 1, "no_mixed_nalu_types_in_pic_constraint_flag");
WRITE_U(stream, 0, 1, "no_trail_constraint_flag");
WRITE_U(stream, 0, 1, "no_stsa_constraint_flag");
WRITE_U(stream, 0, 1, "no_rasl_constraint_flag");
WRITE_U(stream, 0, 1, "no_radl_constraint_flag");
WRITE_U(stream, 0, 1, "no_idr_constraint_flag");
WRITE_U(stream, 0, 1, "no_cra_constraint_flag");
WRITE_U(stream, 0, 1, "no_gdr_constraint_flag");
WRITE_U(stream, 0, 1, "no_aps_constraint_flag");
#endif
}
uvg_bitstream_align_zero(stream);
#endif
#if !JVET_S_SUB_PROFILE
WRITE_U(stream, 1, 8, "num_sub_profiles");
WRITE_U(stream, 0, 32, "general_sub_profile_idc");
#endif
WRITE_U(stream, 0, 1, "sub_layer_level_present_flag");
uvg_bitstream_align_zero(stream);
WRITE_U(stream, 1, 8, "ptl_num_sub_profiles");
WRITE_U(stream, 0, 32, "general_sub_profile_idc");
// end PTL
}
static uint8_t max_required_dpb_size(const encoder_control_t * const encoder)
{
int max_buffer = 1;
for (int g = 0; g < encoder->cfg.gop_len; ++g) {
int neg_refs = encoder->cfg.gop[g].ref_neg_count;
int pos_refs = encoder->cfg.gop[g].ref_pos_count;
if (neg_refs + pos_refs + 1 > max_buffer) max_buffer = neg_refs + pos_refs + 1;
}
if (encoder->cfg.gop_len == 0) max_buffer = encoder->cfg.ref_frames + 1;
return max_buffer;
}
static uint8_t max_num_reorder_pics(const encoder_control_t * const encoder)
{
return encoder->cfg.gop_lowdelay ? 0 : MAX(encoder->cfg.gop_len - 1, 0);
}
/*
static void encoder_state_write_bitstream_vid_parameter_set(bitstream_t* stream,
encoder_state_t * const state)
{
#ifdef UVG_DEBUG
printf("=========== Video Parameter Set ID: 0 ===========\n");
#endif
WRITE_U(stream, 1, 4, "vps_video_parameter_set_id");
WRITE_U(stream, 0, 6, "vps_max_layers_minus1" );
WRITE_U(stream, 1, 3, "vps_max_sub_layers_minus1");
//for each layer
for (int i = 0; i < 1; i++) {
WRITE_U(stream, 0, 6, "vps_layer_id");
}
uvg_bitstream_align_zero(stream);
encoder_state_write_bitstream_PTL(stream, state);
WRITE_U(stream, 0, 1, "vps_extension_flag")
uvg_bitstream_add_rbsp_trailing_bits(stream);
}
*/
/*
static void encoder_state_write_bitstream_scaling_list(bitstream_t *stream,
encoder_state_t * const state)
{
const encoder_control_t * const encoder = state->encoder_control;
uint32_t size_id;
for (size_id = 0; size_id < SCALING_LIST_SIZE_NUM; size_id++) {
int32_t list_id;
for (list_id = 0; list_id < uvg_g_scaling_list_num[size_id]; list_id++) {
uint8_t scaling_list_pred_mode_flag = 1;
int32_t pred_list_idx;
int32_t i;
uint32_t ref_matrix_id = UINT32_MAX;
for (pred_list_idx = list_id; pred_list_idx >= 0; pred_list_idx--) {
const int32_t * const pred_list = (list_id == pred_list_idx) ?
uvg_scalinglist_get_default(size_id, pred_list_idx) :
encoder->scaling_list.scaling_list_coeff[size_id][pred_list_idx];
if (!memcmp(encoder->scaling_list.scaling_list_coeff[size_id][list_id], pred_list, sizeof(int32_t) * MIN(8, uvg_g_scaling_list_size[size_id])) &&
((size_id < SCALING_LIST_16x16) ||
(encoder->scaling_list.scaling_list_dc[size_id][list_id] == encoder->scaling_list.scaling_list_dc[size_id][pred_list_idx]))) {
ref_matrix_id = pred_list_idx;
scaling_list_pred_mode_flag = 0;
break;
}
}
WRITE_U(stream, scaling_list_pred_mode_flag, 1, "scaling_list_pred_mode_flag" );
if (!scaling_list_pred_mode_flag) {
WRITE_UE(stream, list_id - ref_matrix_id, "scaling_list_pred_matrix_id_delta");
} else {
int32_t delta;
const int32_t coef_num = MIN(MAX_MATRIX_COEF_NUM, uvg_g_scaling_list_size[size_id]);
const uint32_t * const scan_cg = (size_id == 0) ? g_sig_last_scan_16x16 : g_sig_last_scan_32x32;
int32_t next_coef = 8;
const int32_t * const coef_list = encoder->scaling_list.scaling_list_coeff[size_id][list_id];
if (size_id >= SCALING_LIST_16x16) {
WRITE_SE(stream, encoder->scaling_list.scaling_list_dc[size_id][list_id] - 8, "scaling_list_dc_coef_minus8");
next_coef = encoder->scaling_list.scaling_list_dc[size_id][list_id];
}
for (i = 0; i < coef_num; i++) {
delta = coef_list[scan_cg[i]] - next_coef;
next_coef = coef_list[scan_cg[i]];
if (delta > 127)
delta -= 256;
if (delta < -128)
delta += 256;
WRITE_SE(stream, delta, "scaling_list_delta_coef");
}
}
}
}
}
*/
/*
static void encoder_state_write_bitstream_VUI(bitstream_t *stream,
encoder_state_t * const state)
{
const encoder_control_t * const encoder = state->encoder_control;
#ifdef UVG_DEBUG
printf("=========== VUI Set ID: 0 ===========\n");
#endif
WRITE_U(stream, 0, 1, "vui_progressive_source_flag");
WRITE_U(stream, 0, 1, "vui_interlaced_source_flag");
#if JVET_S0266_VUI_length
WRITE_U(stream, 0, 1, "vui_non_packed_constraint_flag");
WRITE_U(stream, 0, 1, "vui_non_projected_constraint_flag");
#endif
if (encoder->cfg.vui.sar_width > 0 && encoder->cfg.vui.sar_height > 0) {
int i;
static const struct
{
uint8_t width;
uint8_t height;
uint8_t idc;
} sar[] = {
// aspect_ratio_idc = 0 -> unspecified
{ 1, 1, 1 }, { 12, 11, 2 }, { 10, 11, 3 }, { 16, 11, 4 },
{ 40, 33, 5 }, { 24, 11, 6 }, { 20, 11, 7 }, { 32, 11, 8 },
{ 80, 33, 9 }, { 18, 11, 10}, { 15, 11, 11}, { 64, 33, 12},
{160, 99, 13}, { 4, 3, 14}, { 3, 2, 15}, { 2, 1, 16},
// aspect_ratio_idc = [17..254] -> reserved
{ 0, 0, 255 }
};
for (i = 0; sar[i].idc != 255; i++)
if (sar[i].width == encoder->cfg.vui.sar_width &&
sar[i].height == encoder->cfg.vui.sar_height)
break;
WRITE_U(stream, 1, 1, "aspect_ratio_info_present_flag");
WRITE_U(stream, sar[i].idc, 8, "aspect_ratio_idc");
if (sar[i].idc == 255) {
// EXTENDED_SAR
WRITE_U(stream, encoder->cfg.vui.sar_width, 16, "sar_width");
WRITE_U(stream, encoder->cfg.vui.sar_height, 16, "sar_height");
}
} else
WRITE_U(stream, 0, 1, "aspect_ratio_info_present_flag");
if (encoder->cfg.vui.overscan > 0) {
WRITE_U(stream, 1, 1, "overscan_info_present_flag");
WRITE_U(stream, encoder->cfg.vui.overscan - 1, 1, "overscan_appropriate_flag");
}
else
WRITE_U(stream, 0, 1, "overscan_info_present_flag");
WRITE_U(stream, 0, 1, "colour_description_present_flag");
WRITE_U(stream, 0, 1, "chroma_loc_info_present_flag");
#if JVET_S0266_VUI_length
if ((stream->cur_bit & 7) != 0) {
WRITE_U(stream, 1, 0, "vui_payload_bit_equal_to_one");
while ((stream->cur_bit & 7) != 0)
{
WRITE_U(stream, 0, 0, "vui_payload_bit_equal_to_zero");
}
}
#endif
//WRITE_U(stream, 1, 1, "video_signal_type_present_flag");
//WRITE_U(stream, encoder->cfg.vui.fullrange, 1, "video_full_range_flag");
//IF overscan info
//ENDIF
}
*/
static void encoder_state_write_bitstream_SPS_extension(bitstream_t *stream,
encoder_state_t * const state)
{
bool extensions_present = state->encoder_control->cfg.intra_smoothing_disabled == 1 ? true : false;
WRITE_U(stream, extensions_present, 1, "sps_extension_present_flag");
if (extensions_present) {
WRITE_U(stream, 1, 1, "sps_range_extension_flag");
WRITE_U(stream, 0, 1, "sps_multilayer_extension_flag");
WRITE_U(stream, 0, 1, "sps_extension_6bits");
WRITE_U(stream, 0, 1, "sps_extension_6bits");
WRITE_U(stream, 0, 1, "sps_extension_6bits");
WRITE_U(stream, 0, 1, "sps_extension_6bits");
WRITE_U(stream, 0, 1, "sps_extension_6bits");
WRITE_U(stream, 0, 1, "sps_extension_6bits");
// Range Extension
WRITE_U(stream, 0, 1, "transform_skip_rotation_enabled_flag");
WRITE_U(stream, 0, 1, "transform_skip_context_enabled_flag");
WRITE_U(stream, 0, 1, "extended_precision_processing_flag");
WRITE_U(stream, 0, 1, "sps_ts_residual_coding_rice_present_in_sh_flag");
WRITE_U(stream, state->encoder_control->cfg.intra_smoothing_disabled, 1, "intra_smoothing_disabled_flag");
WRITE_U(stream, 0, 1, "high_precision_offsets_enabled_flag");
WRITE_U(stream, 0, 1, "rrc_rice_extension_flag");
WRITE_U(stream, 0, 1, "persistent_rice_adaptation_enabled_flag");
WRITE_U(stream, 0, 1, "cabac_bypass_alignment_enabled_flag");
}
}
static void encoder_state_write_bitstream_seq_parameter_set(bitstream_t* stream,
encoder_state_t * const state)
{
const encoder_control_t * encoder = state->encoder_control;
#ifdef UVG_DEBUG
printf("=========== Sequence Parameter Set ID: 0 ===========\n");
#endif
/*
*/
WRITE_U(stream, 0, 4, "sps_decoding_parameter_set_id");
WRITE_U(stream, 0, 4, "sps_video_parameter_set_id");
WRITE_U(stream, 1, 3, "sps_max_sub_layers_minus1");
WRITE_U(stream, encoder->chroma_format, 2, "chroma_format_idc");
WRITE_U(stream, uvg_math_floor_log2(LCU_WIDTH) - 5, 2, "sps_log2_ctu_size_minus5");
WRITE_U(stream, 1, 1, "sps_ptl_dpb_hrd_params_present_flag");
encoder_state_write_bitstream_PTL(stream, state);
WRITE_U(stream, 0, 1, "gdr_enabled_flag");
WRITE_U(stream, 0, 1, "ref_pic_resampling_enabled_flag");
WRITE_UE(stream, encoder->in.width, "pic_width_max_in_luma_samples");
WRITE_UE(stream, encoder->in.height, "pic_height_max_in_luma_samples");
bool use_conformance_window = encoder->in.width != encoder->in.real_width || encoder->in.height != encoder->in.real_height;
WRITE_U(stream, use_conformance_window, 1, "conformance_window_flag");
if (use_conformance_window) {
// The standard does not seem to allow setting conf_win values such that
// the number of luma samples is not a multiple of 2. Options are to either
// hide one line or show an extra line of non-video. Neither seems like a
// very good option, so let's not even try.
assert(!(encoder->in.width % 2));
WRITE_UE(stream, 0, "conf_win_left_offset");
WRITE_UE(stream, (encoder->in.width - encoder->in.real_width) >> 1,
"conf_win_right_offset");
WRITE_UE(stream, 0, "conf_win_top_offset");
WRITE_UE(stream, (encoder->in.height - encoder->in.real_height) >> 1,
"conf_win_bottom_offset");
}
WRITE_U(stream, 0, 1, "subpic_info_present_flag");
WRITE_UE(stream, encoder->bitdepth-8, "bit_depth_minus8");
WRITE_U(stream, encoder->cfg.wpp, 1, "sps_entropy_coding_sync_enabled_flag");
WRITE_U(stream, encoder->tiles_enable || encoder->cfg.wpp, 1, "sps_entry_point_offsets_present_flag");
WRITE_U(stream, encoder->poc_lsb_bits - 4, 4, "log2_max_pic_order_cnt_lsb_minus4");
WRITE_U(stream, 0, 1, "sps_poc_msb_flag");
WRITE_U(stream, 0, 2, "num_extra_ph_bits_bytes");
WRITE_U(stream, 0, 2, "num_extra_sh_bits_bytes");
WRITE_U(stream, 0, 1, "sps_sublayer_dpb_params_flag");
//for each layer
int max_buffer = max_required_dpb_size(encoder);
int max_reorder = max_num_reorder_pics(encoder);
if (max_buffer - 1 < max_reorder) max_buffer = max_reorder + 1;
WRITE_UE(stream, max_buffer - 1, "sps_max_dec_pic_buffering_minus1");
WRITE_UE(stream, max_reorder, "sps_max_num_reorder_pics");
WRITE_UE(stream, 0, "sps_max_latency_increase_plus1");
//end for
WRITE_UE(stream, MIN_SIZE-2, "log2_min_luma_coding_block_size_minus2"); // Min size 2^3 = 8x8
// if(!no_partition_constraints_override_constraint_flag)
WRITE_U(stream, 0, 1, "partition_constraints_override_enabled_flag");
WRITE_UE(stream, 0, "sps_log2_diff_min_qt_min_cb_intra_slice_luma");
WRITE_UE(stream, 0, "sps_max_mtt_hierarchy_depth_intra_slice_luma");
if (encoder->chroma_format != UVG_CSP_400)
{
WRITE_U(stream, encoder->cfg.dual_tree, 1, "qtbtt_dual_tree_intra_flag");
}
if (encoder->cfg.dual_tree) {
WRITE_UE(stream, 0, "sps_log2_diff_min_qt_min_cb_intra_slice_chroma");
WRITE_UE(stream, 0, "sps_max_mtt_hierarchy_depth_intra_slice_chroma");
if (0 /*sps_max_mtt_hierarchy_depth_intra_slice_chroma != 0*/) {
WRITE_UE(stream, 0, "sps_log2_diff_max_bt_min_qt_intra_slice_chroma");
WRITE_UE(stream, 0, "sps_log2_diff_max_tt_min_qt_intra_slice_chroma");
}
}
WRITE_UE(stream, 0, "sps_log2_diff_min_qt_min_cb_inter_slice");
WRITE_UE(stream, 0, "sps_max_mtt_hierarchy_depth_inter_slice");
#if 0 // mtt depth intra
if (max_mtt_depth_intra != 0) {
WRITE_UE(stream, 0, "sps_log2_diff_max_bt_min_qt_intra_tile_group_luma");
WRITE_UE(stream, 0, "sps_log2_diff_max_tt_min_qt_intra_tile_group_luma");
}
#endif
#if 0 // mtt depth inter
if (max_mtt_depth_inter != 0) {
WRITE_UE(stream, 0, "sps_log2_diff_max_bt_min_qt_inter_tile_group");
WRITE_UE(stream, 0, "sps_log2_diff_max_tt_min_qt_inter_tile_group");
}
#endif
#if 0 // Dual Tree
if (encoder->cfg.dual_i_tree) {
WRITE_UE(stream, 0, "sps_log2_diff_min_qt_min_cb_intra_tile_group_chroma");
WRITE_UE(stream, 0, "sps_max_mtt_hierarchy_depth_intra_tile_group_chroma");
if (max_mtt_depth_intra != 0) {
WRITE_UE(stream, 0, "sps_log2_diff_max_bt_min_qt_intra_tile_group_chroma");
WRITE_UE(stream, 0, "sps_log2_diff_max_tt_min_qt_intra_tile_group_chroma");
}
}
#endif
if (LCU_WIDTH > 32)
WRITE_U(stream, (TR_MAX_LOG2_SIZE - 5) ? 1 : 0, 1, "sps_max_luma_transform_size_64_flag");
WRITE_U(stream, encoder->cfg.trskip_enable, 1, "sps_transform_skip_enabled_flag");
if (encoder->cfg.trskip_enable) {
WRITE_UE(stream, encoder->cfg.trskip_max_size-2, "sps_log2_transform_skip_max_size_minus2");
WRITE_U(stream, 0, 1, "sps_bdpcm_enabled_flag");
}
const uint8_t mts_selection = encoder->cfg.mts;
WRITE_U(stream, mts_selection ? 1 : 0, 1, "sps_mts_enabled_flag");
if (mts_selection){
WRITE_U(stream, mts_selection == UVG_MTS_INTRA || mts_selection == UVG_MTS_BOTH ? 1 : 0, 1, "sps_explicit_mts_intra_enabled_flag");
WRITE_U(stream, mts_selection == UVG_MTS_INTER || mts_selection == UVG_MTS_BOTH ? 1 : 0, 1, "sps_explicit_mts_inter_enabled_flag");
}
WRITE_U(stream, encoder->cfg.lfnst, 1, "sps_lfnst_enabled_flag");
if (encoder->chroma_format != UVG_CSP_400) {
WRITE_U(stream, encoder->cfg.jccr, 1, "sps_joint_cbcr_enabled_flag");
WRITE_U(stream, 1, 1, "same_qp_table_for_chroma");
for (int i = 0; i < encoder->cfg.num_used_table; i++) {
WRITE_SE(stream, encoder->cfg.qp_table_start_minus26[i], "qp_table_starts_minus26");
WRITE_UE(stream, encoder->cfg.qp_table_length_minus1[i], "num_points_in_qp_table_minus1");
for (int j = 0; j <= encoder->cfg.qp_table_length_minus1[i]; j++) {
WRITE_UE(stream, encoder->cfg.delta_qp_in_val_minus1[i][j], "delta_qp_in_val_minus1");
WRITE_UE(stream, encoder->cfg.delta_qp_out_val[i][j] ^ encoder->cfg.delta_qp_in_val_minus1[i][j], "delta_qp_diff_val");
}
}
}
// if(!no_sao_constraint_flag)
WRITE_U(stream, encoder->cfg.sao_type ? 1 : 0, 1, "sps_sao_enabled_flag");
// if(!no_alf_constraint_flag)
WRITE_U(stream, encoder->cfg.alf_type ? 1 : 0, 1, "sps_alf_enable_flag");
if (encoder->cfg.alf_type && encoder->chroma_format != UVG_CSP_400)
{
WRITE_U(stream, encoder->cfg.alf_type == UVG_ALF_FULL, 1, "sps_ccalf_enabled_flag");
}
WRITE_U(stream, encoder->cfg.lmcs_enable, 1, "sps_lmcs_enable_flag");
WRITE_U(stream, 0, 1, "sps_weighted_pred_flag"); // Use of Weighting Prediction (P_SLICE)
WRITE_U(stream, 0, 1, "sps_weighted_bipred_flag"); // Use of Weighting Bi-Prediction (B_SLICE)
WRITE_U(stream, 0, 1, "long_term_ref_pics_flag");
WRITE_U(stream, 0, 1, "sps_idr_rpl_present_flag");
WRITE_U(stream, 0, 1, "rpl1_copy_from_rpl0_flag");
WRITE_UE(stream, 0, "num_ref_pic_lists_in_sps[0]");
WRITE_UE(stream, 0, "num_ref_pic_lists_in_sps[0]");
WRITE_U(stream, 0, 1, "sps_ref_wraparound_enabled_flag");
// if(!no_temporal_mvp_constraint_flag)
WRITE_U(stream, state->encoder_control->cfg.tmvp_enable, 1,
"sps_temporal_mvp_enabled_flag");
if (state->encoder_control->cfg.tmvp_enable /* && !no_sbtmvp_constraint_flag */) {
WRITE_U(stream, 0, 1, "sps_sbtmvp_enabled_flag");
}
// if(!no_amvr_constraint_flag)
WRITE_U(stream, state->encoder_control->cfg.amvr, 1, "sps_amvr_enabled_flag");
// if(!no_bdof_constraint_flag)
WRITE_U(stream, 0, 1, "sps_bdof_enabled_flag");
// if(!no_dmvr_constraint_flag)
WRITE_U(stream, 0, 1, "sps_smvd_enabled_flag");
// if(!no_dmvr_constraint_flag)
WRITE_U(stream, 0, 1, "sps_dmvr_enabled_flag");
WRITE_U(stream, 0, 1, "sps_mmvd_enabled_flag");
WRITE_UE(stream, 6 - state->encoder_control->cfg.max_merge, "six_minus_max_num_merge_cand");
WRITE_U(stream, 0, 1, "sps_sbt_enabled_flag");
WRITE_U(stream, 0, 1, "sps_affine_enabled_flag");
WRITE_U(stream, 0, 1, "sps_bcw_enabled_flag");
WRITE_U(stream, 0, 1, "sps_ciip_enabled_flag");
if (state->encoder_control->cfg.max_merge >= 2)
{
WRITE_U(stream, 0, 1, "sps_gpm_enabled_flag");
}
WRITE_UE(stream, encoder->cfg.log2_parallel_merge_level-2, "log2_parallel_merge_level_minus2");
WRITE_U(stream, 0, 1, "sps_isp_enabled_flag");
if (state->encoder_control->cfg.mrl) {
WRITE_U(stream, 1, 1, "sps_mrl_enabled_flag");
} else {
WRITE_U(stream, 0, 1, "sps_mrl_enabled_flag");
}
if (state->encoder_control->cfg.mip) {
WRITE_U(stream, 1, 1, "sps_mip_enabled_flag");
} else {
WRITE_U(stream, 0, 1, "sps_mip_enabled_flag");
}
// if(!no_cclm_constraint_flag)
if(encoder->chroma_format != UVG_CSP_400) {
WRITE_U(stream, encoder->cfg.cclm, 1, "sps_cclm_enabled_flag");
}
if (encoder->chroma_format == UVG_CSP_420) {
WRITE_U(stream, 0, 1, "sps_chroma_horizontal_collocated_flag");
WRITE_U(stream, 0, 1, "sps_chroma_vertical_collocated_flag");
}
WRITE_U(stream, 0, 1, "sps_palette_enabled_flag");
if (encoder->cfg.trskip_enable /* || pcSPS->getPLTMode()*/) {
WRITE_UE(stream, 0, "sps_internal_bit_depth_minus_input_bit_depth");
}
WRITE_U(stream, encoder->cfg.ibc > 0 ? 1 : 0, 1, "sps_ibc_enabled_flag");
if (encoder->cfg.ibc) {
WRITE_UE(stream,6 - IBC_MRG_MAX_NUM_CANDS, "sps_six_minus_max_num_ibc_merge_cand");
}
#if LUMA_ADAPTIVE_DEBLOCKING_FILTER_QP_OFFSET
// if(!no_ladf_constraint_flag)
WRITE_U(stream, 0, 1, "sps_ladf_enabled_flag");
#endif
WRITE_U(stream, 0, 1, "scaling_list_enabled_flag");
WRITE_U(stream, 0, 1, "pic_dep_quant_enabled_flag");
WRITE_U(stream, encoder->cfg.signhide_enable, 1, "pic_sign_data_hiding_enabled_flag");
WRITE_U(stream, 0, 1, "sps_virtual_boundaries_enabled_flag");
WRITE_U(stream, encoder->vui.timing_info_present_flag, 1, "sps_timing_hrd_params_present_flag");
if (encoder->vui.timing_info_present_flag) {
WRITE_U(stream, encoder->vui.num_units_in_tick, 32, "num_units_in_tick");
WRITE_U(stream, encoder->vui.time_scale, 32, "time_scale");
WRITE_U(stream, 0, 1, "general_nal_hrd_parameters_present_flag");
WRITE_U(stream, 0, 1, "general_vcl_hrd_parameters_present_flag");
/* if(general_nal_hrd_parameters_present_flag || general_vcl_hrd_parameters_present_flag) {
WRITE_U(stream, 0, 1, "general_same_pic_timing_in_all_ols_flag");
WRITE_U(stream, 0, 1, "general_decoding_unit_hrd_params_present_flag");
WRITE_U(stream, 0, 4, "bit_rate_scale");
WRITE_U(stream, 0, 4, "cpb_size_scale");
WRITE_UE(stream, 0, "hrd_cpb_cnt_minus1");
}
*/
WRITE_U(stream, 0, 1, "sps_sublayer_cpb_params_present_flag");
WRITE_U(stream, 1, 1, "fixed_pic_rate_general_flag");
WRITE_UE(stream, 0, "elemental_duration_in_tc_minus1");
}
WRITE_U(stream, 0, 1, "sps_field_seq_flag");
WRITE_U(stream, 0, 1, "sps_vui_parameters_present_flag");
// ToDo: Check and enable
//encoder_state_write_bitstream_VUI(stream, state);
encoder_state_write_bitstream_SPS_extension(stream, state);
uvg_bitstream_add_rbsp_trailing_bits(stream);
}
static void encoder_state_write_bitstream_pic_parameter_set(bitstream_t* stream,
encoder_state_t * const state)
{
const encoder_control_t * const encoder = state->encoder_control;
#ifdef UVG_DEBUG
printf("=========== Picture Parameter Set ID: 0 ===========\n");
#endif
WRITE_U(stream, 0, 6, "pps_pic_parameter_set_id");
WRITE_U(stream, 0, 4, "pps_seq_parameter_set_id");
WRITE_U(stream, 0, 1, "mixed_nalu_types_in_pic_flag");
WRITE_UE(stream, encoder->in.width, "pic_width_in_luma_samples");
WRITE_UE(stream, encoder->in.height, "pic_height_in_luma_samples");
bool use_conformance_window = false; //Signalled only in SPS
WRITE_U(stream, use_conformance_window, 1, "conformance_window_flag");
if (use_conformance_window) {
// The standard does not seem to allow setting conf_win values such that
// the number of luma samples is not a multiple of 2. Options are to either
// hide one line or show an extra line of non-video. Neither seems like a
// very good option, so let's not even try.
assert(!(encoder->in.width % 2));
WRITE_UE(stream, 0, "conf_win_left_offset");
WRITE_UE(stream, (encoder->in.width - encoder->in.real_width) >> 1,
"conf_win_right_offset");
WRITE_UE(stream, 0, "conf_win_top_offset");
WRITE_UE(stream, (encoder->in.height - encoder->in.real_height) >> 1,
"conf_win_bottom_offset");
}
WRITE_U(stream, 0, 1, "scaling_window_flag");
WRITE_U(stream, 0, 1, "output_flag_present_flag");
WRITE_U(stream, encoder->tiles_enable ? 0 : 1, 1, "pps_no_pic_partition_flag");
WRITE_U(stream, 0, 1, "subpic_id_mapping_in_pps_flag");
if (encoder->tiles_enable) {
WRITE_U(stream, uvg_math_floor_log2(LCU_WIDTH) - 5, 2, "pps_log2_ctu_size_minus5");
WRITE_UE(stream, encoder->cfg.tiles_width_count - 1, "pps_num_exp_tile_columns_minus1");
WRITE_UE(stream, encoder->cfg.tiles_height_count - 1, "pps_num_exp_tile_rows_minus1");
int i;
for (i = 0; i < encoder->cfg.tiles_width_count; ++i) {
WRITE_UE(stream, encoder->tiles_col_width[i] - 1, "pps_tile_column_width_minus1[i]");
}
for (i = 0; i < encoder->cfg.tiles_height_count; ++i) {
WRITE_UE(stream, encoder->tiles_row_height[i] - 1, "pps_tile_row_height_minus1[i]");
}
if (encoder->cfg.tiles_width_count * encoder->cfg.tiles_height_count > 1)
{
WRITE_U(stream, 0, 1, "pps_loop_filter_across_tiles_enabled_flag");
WRITE_U(stream, 1, 1, "pps_rect_slice_flag");
WRITE_U(stream, 1, 1, "pps_single_slice_per_subpic_flag");
WRITE_U(stream, 0, 1, "pps_loop_filter_across_slices_enabled_flag");
}
}
WRITE_U(stream, 0, 1, "pps_cabac_init_present_flag");
WRITE_UE(stream, 0, "pps_num_ref_idx_default_active_minus1");
WRITE_UE(stream, 0, "pps_num_ref_idx_default_active_minus1");
WRITE_U(stream, 0, 1, "pps_rpl1_idx_present_flag");
WRITE_U(stream, 0, 1, "pps_weighted_pred_flag"); // Use of Weighting Prediction (P_SLICE)
WRITE_U(stream, 0, 1, "pps_weighted_bipred_flag"); // Use of Weighting Bi-Prediction (B_SLICE)
WRITE_U(stream, 0, 1, "pps_ref_wraparound_enabled_flag");
WRITE_SE(stream, ((int8_t)encoder->cfg.qp) - 26, "pps_init_qp_minus26");
WRITE_U(stream, state->frame->max_qp_delta_depth >= 0 ? 1:0, 1, "pps_cu_qp_delta_enabled_flag");
WRITE_U(stream, 0,1, "pps_chroma_tool_offsets_present_flag");
/* // If chroma_tool_offsets_present
//TODO: add QP offsets
WRITE_SE(stream, 0, "pps_cb_qp_offset");
WRITE_SE(stream, 0, "pps_cr_qp_offset");
WRITE_U(stream, 0, 1, "pps_joint_cbcr_qp_offset_present_flag");
// If pps_joint_cbcr_qp_offset_present_flag
//WRITE_SE(stream, 0, "pps_joint_cbcr_qp_offset");
WRITE_U(stream, 0, 1, "pps_slice_chroma_qp_offsets_present_flag");
WRITE_U(stream, 0, 1, "cu_chroma_qp_offset_enabled_flag");
*/
WRITE_U(stream, 1, 1, "pps_deblocking_filter_control_present_flag");
//IF deblocking_filter
WRITE_U(stream, 0, 1, "pps_deblocking_filter_override_enabled_flag");
WRITE_U(stream, encoder->cfg.deblock_enable ? 0 : 1, 1,
"pps_deblocking_filter_disabled_flag");
//IF !disabled
if (encoder->cfg.deblock_enable) {
WRITE_SE(stream, encoder->cfg.deblock_beta, "pps_beta_offset_div2");
WRITE_SE(stream, encoder->cfg.deblock_tc, "pps_tc_offset_div2");
}
if (encoder->tiles_enable) {
WRITE_U(stream, 0, 1, "pps_rpl_info_in_ph_flag");
WRITE_U(stream, 0, 1, "pps_sao_info_in_ph_flag");
WRITE_U(stream, 0, 1, "pps_alf_info_in_ph_flag");
WRITE_U(stream, 0, 1, "pps_qp_delta_info_in_ph_flag");
}
WRITE_U(stream, 0, 1, "pps_picture_header_extension_present_flag");
WRITE_U(stream, 0, 1, "pps_slice_header_extension_present_flag");
WRITE_U(stream, 0, 1, "pps_extension_flag");
uvg_bitstream_add_rbsp_trailing_bits(stream);
}
static void encoder_state_write_bitstream_prefix_sei_version(encoder_state_t * const state)
{
#define STR_BUF_LEN 1000
bitstream_t * const stream = &state->stream;
int i, length;
char buf[STR_BUF_LEN] = { 0 };
char *s = buf + 16;
const uvg_config * const cfg = &state->encoder_control->cfg;
// random uuid_iso_iec_11578 generated with www.famkruithof.net/uuid/uuidgen
static const uint8_t uuid[16] = {
0x32, 0xfe, 0x46, 0x6c, 0x98, 0x41, 0x42, 0x69,
0xae, 0x35, 0x6a, 0x91, 0x54, 0x9e, 0xf3, 0xf1
};
memcpy(buf, uuid, 16);
// user_data_payload_byte
s += sprintf(s, "uvg266 VVC Encoder v. " VERSION_STRING " - "
"Copyleft 2020- - http://ultravideo.fi/ - options:");
s += sprintf(s, " %dx%d", cfg->width, cfg->height);
s += sprintf(s, " deblock=%d:%d:%d", cfg->deblock_enable,
cfg->deblock_beta, cfg->deblock_tc);
s += sprintf(s, " sao=%d", cfg->sao_type);
s += sprintf(s, " intra_period=%d", cfg->intra_period);
s += sprintf(s, " qp=%d", cfg->qp);
s += sprintf(s, " ref=%d", cfg->ref_frames);
length = (int)(s - buf + 1); // length, +1 for \0
// Assert this so that in the future if the message gets longer, we remember
// to increase the buf len. Divide by 2 for margin.
assert(length < STR_BUF_LEN / 2);
// payloadType = 5 -> user_data_unregistered
WRITE_U(stream, 5, 8, "last_payload_type_byte");
// payloadSize
for (i = 0; i <= length - 255; i += 255)
WRITE_U(stream, 255, 8, "ff_byte");
WRITE_U(stream, length - i, 8, "last_payload_size_byte");
for (i = 0; i < length; i++)
WRITE_U(stream, ((uint8_t *)buf)[i], 8, "sei_payload");
// The bitstream is already aligned, but align it anyway.
uvg_bitstream_align(stream);
#undef STR_BUF_LEN
}
/*
static void encoder_state_write_active_parameter_sets_sei_message(encoder_state_t * const state) {
const encoder_control_t * const encoder = state->encoder_control;
bitstream_t * const stream = &state->stream;
int i = 0;
int active_vps_id = 0;
int self_contained_cvs_flag = 0;
int no_parameter_set_update_flag = 0;
int num_sps_ids_minus1 = 0;
int layer_sps_idx = 0;
int active_seq_parameter_set_id = 0;
int vps_base_layer_internal_flag = 0;
int max_layers_minus1 = 0;
WRITE_U(stream, 129, 8, "last_payload_type_byte"); //active_parameter_sets
WRITE_U(stream, 2, 8, "last_payload_size_byte");
WRITE_U(stream, active_vps_id, 4, "active_video_parameter_set_id");
WRITE_U(stream, self_contained_cvs_flag, 1, "self_contained_cvs_flag");
WRITE_U(stream, no_parameter_set_update_flag, 1, "no_parameter_set_update_flag");
WRITE_UE(stream, num_sps_ids_minus1, "num_sps_ids_minus1");
//for (i = 0; i <= num_sps_ids_minus1; ++i) {
WRITE_UE(stream, active_seq_parameter_set_id, "active_seq_parameter_set_id");
//}
// for (i = vps_base_layer_internal_flag; i <= max_layers_minus1; ++i){
WRITE_UE(stream, layer_sps_idx, "layer_sps_idx");
//}
uvg_bitstream_rbsp_trailing_bits(stream); //rbsp_trailing_bits
}
*/
static void encoder_state_write_picture_timing_sei_message(encoder_state_t * const state) {
bitstream_t * const stream = &state->stream;
if (state->encoder_control->vui.frame_field_info_present_flag){
int8_t odd_picture = state->frame->num % 2;
int8_t pic_struct = 0; //0: progressive picture, 1: top field, 2: bottom field, 3...
int8_t source_scan_type = 1; //0: interlaced, 1: progressive
switch (state->tile->frame->source->interlacing){
case 0: //Progressive frame
pic_struct = 0;
source_scan_type = 1;
break;
case 1: //Top field first
pic_struct = odd_picture ? 2 : 1;
source_scan_type = 0;
break;
case 2: //Bottom field first
pic_struct = odd_picture ? 1 : 2;
source_scan_type = 0;
break;
default:
assert(0); //Should never execute
break;
}
WRITE_U(stream, 1, 8, "last_payload_type_byte"); //pic_timing
WRITE_U(stream, 1, 8, "last_payload_size_byte");
WRITE_U(stream, pic_struct, 4, "pic_struct");
WRITE_U(stream, source_scan_type, 2, "source_scan_type");
WRITE_U(stream, 0, 1, "duplicate_flag");
uvg_bitstream_align(stream);
}
}
static void encoder_state_entry_points_explore(const encoder_state_t * const state, int * const r_count, int * const r_max_length) {
int i;
for (i = 0; state->children[i].encoder_control; ++i) {
if (state->children[i].is_leaf) {
const int my_length = (const int)uvg_bitstream_tell(&state->children[i].stream)/8;
++(*r_count);
if (my_length > *r_max_length) {
*r_max_length = my_length;
}
} else {
encoder_state_entry_points_explore(&state->children[i], r_count, r_max_length);
}
}
}
static void encoder_state_write_bitstream_entry_points_write(bitstream_t * const stream, const encoder_state_t * const state, const int num_entry_points, const int write_length, int * const r_count) {
int i;
for (i = 0; state->children[i].encoder_control; ++i) {
if (state->children[i].is_leaf) {
const int my_length = (const int)uvg_bitstream_tell(&state->children[i].stream)/8;
++(*r_count);
//Don't write the last one
if (*r_count < num_entry_points) {
WRITE_U(stream, my_length - 1, write_length, "entry_point_offset-minus1")
}
} else {
encoder_state_write_bitstream_entry_points_write(stream, &state->children[i], num_entry_points, write_length, r_count);
}
}
}
static void uvg_encoder_state_write_bitstream_picture_header(
struct bitstream_t * const stream,
struct encoder_state_t * const state)
{
const encoder_control_t * const encoder = state->encoder_control;
#ifdef UVG_DEBUG
printf("=========== Picture Header ===========\n");
#endif
if (state->frame->pictype == UVG_NAL_IDR_W_RADL
|| state->frame->pictype == UVG_NAL_IDR_N_LP) {
WRITE_U(stream, 1, 1, "ph_gdr_or_irap_pic_flag");
#if JVET_S0076_ASPECT1
WRITE_U(stream, 0, 1, "ph_non_ref_pic_flag");
#endif
WRITE_U(stream, 0, 1, "ph_gdr_pic_flag");
WRITE_U(stream, 0, 1, "ph_inter_slice_allowed_flag");
}
else {
WRITE_U(stream, 0, 1, "ph_gdr_or_irap_pic_flag");
#if JVET_S0076_ASPECT1
WRITE_U(stream, 0, 1, "ph_non_ref_pic_flag");
#endif
WRITE_U(stream, 1, 1, "ph_inter_slice_allowed_flag");
WRITE_U(stream, 1, 1, "ph_intra_slice_allowed_flag");
}
#if !JVET_S0076_ASPECT1
WRITE_U(stream, 0, 1, "non_reference_picture_flag");
#endif
WRITE_UE(stream, 0, "ph_pic_parameter_set_id");
const int poc_lsb = state->frame->poc & ((1 << encoder->poc_lsb_bits) - 1);
WRITE_U(stream, poc_lsb, encoder->poc_lsb_bits, "ph_pic_order_cnt_lsb");
if (state->frame->max_qp_delta_depth >= 0) {
WRITE_UE(stream, state->frame->max_qp_delta_depth, "ph_cu_qp_delta_subdiv_intra_slice");
}
// alf enable flags and aps IDs
if (encoder->cfg.alf_type)
{
if (encoder->cfg.alf_info_in_ph_flag)
{
/* WRITE_FLAG(picHeader->getAlfEnabledFlag(COMPONENT_Y), "ph_alf_enabled_flag");
if (picHeader->getAlfEnabledFlag(COMPONENT_Y))
{
WRITE_CODE(picHeader->getNumAlfAps(), 3, "ph_num_alf_aps_ids_luma");
const std::vector<int>& apsId = picHeader->getAlfAPSs();
for (int i = 0; i < picHeader->getNumAlfAps(); i++)
{
WRITE_CODE(apsId[i], 3, "ph_alf_aps_id_luma");
}
const int alfChromaIdc = picHeader->getAlfEnabledFlag(COMPONENT_Cb) + picHeader->getAlfEnabledFlag(COMPONENT_Cr) * 2;
if (sps->getChromaFormatIdc() != CHROMA_400)
{
WRITE_CODE(picHeader->getAlfEnabledFlag(COMPONENT_Cb), 1, "ph_alf_cb_enabled_flag");
WRITE_CODE(picHeader->getAlfEnabledFlag(COMPONENT_Cr), 1, "ph_alf_cr_enabled_flag");
}
if (alfChromaIdc)
{
WRITE_CODE(picHeader->getAlfApsIdChroma(), 3, "ph_alf_aps_id_chroma");
}
if (sps->getCCALFEnabledFlag())
{
WRITE_FLAG(picHeader->getCcAlfEnabledFlag(COMPONENT_Cb), "ph_cc_alf_cb_enabled_flag");
if (picHeader->getCcAlfEnabledFlag(COMPONENT_Cb))
{
WRITE_CODE(picHeader->getCcAlfCbApsId(), 3, "ph_cc_alf_cb_aps_id");
}
WRITE_FLAG(picHeader->getCcAlfEnabledFlag(COMPONENT_Cr), "ph_cc_alf_cr_enabled_flag");
if (picHeader->getCcAlfEnabledFlag(COMPONENT_Cr))
{
WRITE_CODE(picHeader->getCcAlfCrApsId(), 3, "ph_cc_alf_cr_aps_id");
}
}
}*/
}
else
{
/*state->tile->frame->ctu_enable_flag[COMPONENT_Y] = true;
state->tile->frame->ctu_enable_flag[COMPONENT_Cb] = true;
state->tile->frame->ctu_enable_flag[COMPONENT_Cr] = true;
state->tile->frame->alf_cc_enable_flag[COMPONENT_Cb] = encoder->cfg.alf_type == 2 ? 1 : 0;
state->tile->frame->alf_cc_enable_flag[COMPONENT_Cr] = encoder->cfg.alf_type == 2 ? 1 : 0;*/
}
}
else
{
/*state->tile->frame->ctu_enable_flag[COMPONENT_Y] = false;
state->tile->frame->ctu_enable_flag[COMPONENT_Cb] = false;
state->tile->frame->ctu_enable_flag[COMPONENT_Cr] = false;
state->tile->frame->alf_cc_enable_flag[COMPONENT_Cb] = false;
state->tile->frame->alf_cc_enable_flag[COMPONENT_Cr] = false;*/
}
if (encoder->cfg.lmcs_enable)
{
WRITE_U(stream, state->tile->frame->lmcs_aps->m_sliceReshapeInfo.sliceReshaperEnableFlag, 1, "ph_lmcs_enabled_flag");
if (state->tile->frame->lmcs_aps->m_sliceReshapeInfo.sliceReshaperEnableFlag)
{
WRITE_U(stream, 0, 2, "ph_lmcs_aps_id");
if (encoder->chroma_format != UVG_CSP_400)
{
WRITE_U(stream, state->tile->frame->lmcs_aps->m_sliceReshapeInfo.enableChromaAdj, 1, "ph_chroma_residual_scale_flag");
}
}
}
// getDeblockingFilterControlPresentFlag
if (state->frame->pictype == UVG_NAL_IDR_W_RADL
|| state->frame->pictype == UVG_NAL_IDR_N_LP) {
}
else {
if (state->frame->max_qp_delta_depth >= 0) {
WRITE_UE(stream, state->frame->max_qp_delta_depth, "ph_cu_qp_delta_subdiv_inter_slice");
}
if (state->encoder_control->cfg.tmvp_enable) {
WRITE_U(stream, state->encoder_control->cfg.tmvp_enable, 1, "ph_pic_temporal_mvp_enabled_flag");
}
WRITE_U(stream, 0, 1, "ph_mvd_l1_zero_flag");
}
if (encoder->cfg.jccr) {
WRITE_U(stream, state->frame->jccr_sign, 1, "ph_joint_cbcr_sign_flag");
}
// END PICTURE HEADER
}
static void uvg_encoder_state_write_bitstream_ref_pic_list(
struct bitstream_t* const stream,
struct encoder_state_t* const state)
{
uint32_t j;
uint32_t ref_negative = 0;
uint32_t ref_positive = 0;
const encoder_control_t* const encoder = state->encoder_control;
if (encoder->cfg.gop_len) {
for (j = 0; j < state->frame->ref->used_size; j++) {
if (state->frame->ref->pocs[j] < state->frame->poc) {
ref_negative++;
}
else {
ref_positive++;
}
}
}
else ref_negative = state->frame->ref->used_size;
int last_poc = 0;
int poc_shift = 0;
// We don't need to signal L1 list if it's copied from L0
bool copy_rpl1_from_rpl0 = (encoder->cfg.gop_lowdelay || encoder->cfg.gop_len == 0) && encoder->cfg.bipred;
for (int list = 0; list < 1 + copy_rpl1_from_rpl0; list++) {
WRITE_UE(stream, ref_negative, "num_ref_entries[0]");
for (j = 0; j < ref_negative; j++) {
int8_t delta_poc = 0;
if (encoder->cfg.gop_len) {
int8_t found = 0;
do {
delta_poc = encoder->cfg.gop[state->frame->gop_offset].ref_neg[j + poc_shift];
for (uint32_t i = 0; i < state->frame->ref->used_size; i++) {
if (state->frame->ref->pocs[i] == state->frame->poc - delta_poc) {
found = 1;
break;
}
}
if (!found) poc_shift++;
if (j + poc_shift == ref_negative) {
fprintf(stderr, "Failure, reference not found!");
exit(EXIT_FAILURE);
}
} while (!found);
}
/*
WRITE_U(stream, j, 1, "inter_layer_ref_pic_flag");
if (j) {
WRITE_UE(stream, j, "ilrp_idx");
}
*/
WRITE_UE(stream, delta_poc ? delta_poc - last_poc - 1 : 0, "abs_delta_poc_st");
if (delta_poc + 1) WRITE_U(stream, 1, 1, "strp_entry_sign_flag");
last_poc = delta_poc;
}
last_poc = 0;
poc_shift = 0;
}
if (!copy_rpl1_from_rpl0) {
WRITE_UE(stream, ref_positive, "num_ref_entries[1]");
for (j = 0; j < ref_positive; j++) {
int8_t delta_poc = 0;
if (encoder->cfg.gop_len) {
int8_t found = 0;
do {
delta_poc = encoder->cfg.gop[state->frame->gop_offset].ref_pos[j + poc_shift];
for (uint32_t i = 0; i < state->frame->ref->used_size; i++) {
if (state->frame->ref->pocs[i] == state->frame->poc + delta_poc) {
found = 1;
break;
}
}
if (!found) poc_shift++;
if (j + poc_shift == ref_positive) {
fprintf(stderr, "Failure, reference not found!");
exit(EXIT_FAILURE);
}
} while (!found);
}
/*
WRITE_U(stream, j, 1, "inter_layer_ref_pic_flag");
if (j) {
WRITE_UE(stream, j, "ilrp_idx");
}
*/
WRITE_UE(stream, delta_poc ? delta_poc - last_poc - 1 : 0, "abs_delta_poc_st");
if (delta_poc + 1) WRITE_U(stream, 0, 1, "strp_entry_sign_flag");
last_poc = delta_poc;
}
}
if ( (state->frame->slicetype != UVG_SLICE_I && ref_negative > 1 )|| ref_positive > 1) {
WRITE_U(stream, 1, 1, "sh_num_ref_idx_active_override_flag");
if (ref_negative > 1) for(int list = 0; list < 1 + copy_rpl1_from_rpl0; list++) WRITE_UE(stream, ref_negative - 1, "sh_num_ref_idx_active_minus1[0]");
if (!copy_rpl1_from_rpl0 && ref_positive > 1) WRITE_UE(stream, ref_positive - 1, "sh_num_ref_idx_active_minus1[1]");
}
}
void uvg_encoder_state_write_bitstream_slice_header(
struct bitstream_t * const stream,
struct encoder_state_t * const state,
bool independent)
{
const encoder_control_t * const encoder = state->encoder_control;
#ifdef UVG_DEBUG
printf("=========== Slice =========== %d\n", state->frame->poc);
#endif
/*
bool first_slice_segment_in_pic = (state->slice->start_in_rs == 0);
if ((state->encoder_control->cfg.slices & UVG_SLICES_WPP)
&& state->wfrow->lcu_offset_y > 0)
{
first_slice_segment_in_pic = false;
}
//WRITE_U(stream, first_slice_segment_in_pic, 1, "first_slice_segment_in_pic_flag");
*/
WRITE_U(stream, 1, 1, "picture_header_in_slice_header_flag");
uvg_encoder_state_write_bitstream_picture_header(stream, state);
if (state->frame->pictype != UVG_NAL_IDR_W_RADL
&& state->frame->pictype != UVG_NAL_IDR_N_LP) {
WRITE_UE(stream, state->frame->slicetype, "sh_slice_type");
}
if (state->frame->pictype == UVG_NAL_CRA_NUT || state->frame->pictype == UVG_NAL_IDR_N_LP || state->frame->pictype == UVG_NAL_IDR_W_RADL || state->frame->pictype == UVG_NAL_GDR_NUT)
{
WRITE_U(stream, 0, 1, "sh_no_output_of_prior_pics_flag");
}
//alf
if (encoder->cfg.alf_type && !encoder->cfg.alf_info_in_ph_flag)
{
const int alf_enabled = state->slice->alf->tile_group_alf_enabled_flag[COMPONENT_Y];
WRITE_U(stream, alf_enabled, 1, "slice_alf_enabled_flag");
if (alf_enabled)
{
WRITE_U(stream, state->slice->alf->tile_group_num_aps, 3, "slice_num_alf_aps_ids_luma");
const int8_t* aps_ids = state->slice->alf->tile_group_luma_aps_id;
for (int i = 0; i < state->slice->alf->tile_group_num_aps; i++)
{
WRITE_U(stream, aps_ids[i], 3, "slice_alf_aps_id_luma");
}
const int alf_chroma_idc = state->slice->alf->tile_group_alf_enabled_flag[COMPONENT_Cb] + state->slice->alf->tile_group_alf_enabled_flag[COMPONENT_Cr] * 2;
if (encoder->chroma_format != UVG_CSP_400)
{
WRITE_U(stream, state->slice->alf->tile_group_alf_enabled_flag[COMPONENT_Cb], 1, "slice_alf_cb_enabled_flag");
WRITE_U(stream, state->slice->alf->tile_group_alf_enabled_flag[COMPONENT_Cr], 1, "slice_alf_cr_enabled_flag");
}
if (alf_chroma_idc)
{
WRITE_U(stream, state->slice->alf->tile_group_chroma_aps_id, 3, "slice_alf_aps_id_chroma");
}
if (encoder->cfg.alf_type == UVG_ALF_FULL)
{
WRITE_U(stream, state->slice->alf->cc_filter_param->cc_alf_filter_enabled[COMPONENT_Cb - 1], 1, "slice_cc_alf_cb_enabled_flag");
if (state->slice->alf->cc_filter_param->cc_alf_filter_enabled[COMPONENT_Cb - 1])
{
// write CC ALF Cb APS ID
WRITE_U(stream, state->slice->alf->tile_group_cc_alf_cb_aps_id, 3, "slice_cc_alf_cb_aps_id");
}
// Cr
WRITE_U(stream, state->slice->alf->cc_filter_param->cc_alf_filter_enabled[COMPONENT_Cr - 1], 1, "slice_cc_alf_cr_enabled_flag");
if (state->slice->alf->cc_filter_param->cc_alf_filter_enabled[COMPONENT_Cr - 1])
{
// write CC ALF Cr APS ID
WRITE_U(stream, state->slice->alf->tile_group_cc_alf_cr_aps_id, 3, "slice_cc_alf_cr_aps_id");
}
}
}
}
if (state->frame->pictype != UVG_NAL_IDR_W_RADL
&& state->frame->pictype != UVG_NAL_IDR_N_LP) {
uvg_encoder_state_write_bitstream_ref_pic_list(stream, state);
}
if (state->frame->slicetype != UVG_SLICE_I && state->encoder_control->cfg.tmvp_enable) {
int ref_negative = 0;
int ref_positive = 0;
const encoder_control_t* const encoder = state->encoder_control;
if (encoder->cfg.gop_len) {
for (uint32_t j = 0; j < state->frame->ref->used_size; j++) {
if (state->frame->ref->pocs[j] < state->frame->poc) {
ref_negative++;
}
else {
ref_positive++;
}
}
}
else ref_negative = state->frame->ref->used_size;
if (state->frame->slicetype == UVG_SLICE_B) {
WRITE_U(stream, 1, 1, "sh_collocated_from_l0_flag");
}
if (ref_negative > 1) { // collocated_from_l0_flag == 0
WRITE_UE(stream, 0, "sh_collocated_ref_idx");
}
}
int slice_qp_delta = state->frame->QP - encoder->cfg.qp;
WRITE_SE(stream, slice_qp_delta, "sh_qp_delta");
if (encoder->cfg.sao_type) {
WRITE_U(stream, 1, 1, "sh_sao_luma_flag");
if (encoder->chroma_format != UVG_CSP_400) {
WRITE_U(stream, 1, 1, "sh_sao_chroma_flag");
}
}
// ToDo: depquant
if (state->encoder_control->cfg.signhide_enable) {
WRITE_U(stream, 1, 1, "sh_sign_data_hiding_used_flag");
}
if (state->encoder_control->cfg.trskip_enable && !state->encoder_control->cfg.signhide_enable /* && !cfg.dep_quant*/)
{
// TODO: find out what this is actually about and parametrize it
WRITE_U(stream, 0, 1, "sh_ts_residual_coding_disabled_flag");
}
if (state->frame->slicetype != UVG_SLICE_I) {
// BT Size set only with non-I-frames, in I-frames the size is 32x32
// but in other frames it is CTU size >> <this value>
//WRITE_UE(stream, 0, "max_binary_tree_unit_size"); // Max BT size == CTU size
}
if (encoder->tiles_enable || encoder->cfg.wpp) {
int num_entry_points = 0;
int max_length_seen = 0;
if (state->is_leaf) {
num_entry_points = 1;
}
else {
encoder_state_entry_points_explore(state, &num_entry_points, &max_length_seen);
}
int num_offsets = num_entry_points - 1;
//WRITE_UE(stream, num_offsets, "num_entry_point_offsets");
if (num_offsets > 0) {
int entry_points_written = 0;
int offset_len = uvg_math_floor_log2(max_length_seen) + 1;
WRITE_UE(stream, offset_len - 1, "offset_len_minus1");
encoder_state_write_bitstream_entry_points_write(stream, state, num_entry_points, offset_len, &entry_points_written);
}
}
//WRITE_U(stream, 0, 1, "slice_ts_residual_coding_disabled_flag");
//uvg_bitstream_align(stream);
}
/**
* \brief Add a checksum SEI message to the bitstream.
* \param encoder The encoder.
* \returns Void
*/
static void add_checksum(encoder_state_t * const state)
{
bitstream_t * const stream = &state->stream;
const videoframe_t * const frame = state->tile->frame;
unsigned char checksum[3][SEI_HASH_MAX_LENGTH];
uvg_nal_write(stream, UVG_NAL_SUFFIX_SEI_NUT, 0, 0);
WRITE_U(stream, 132, 8, "sei_type");
int num_colors = (state->encoder_control->chroma_format == UVG_CSP_400 ? 1 : 3);
switch (state->encoder_control->cfg.hash)
{
case UVG_HASH_CHECKSUM:
uvg_image_checksum(frame->rec, checksum, state->encoder_control->bitdepth);
WRITE_U(stream, 2 + num_colors * 4, 8, "size");
WRITE_U(stream, 2, 8, "hash_type"); // 2 = checksum
WRITE_U(stream, num_colors==1, 1, "dph_sei_single_component_flag");
WRITE_U(stream, 0, 7, "dph_sei_reserved_zero_7bits");
for (int i = 0; i < num_colors; ++i) {
uint32_t checksum_val = (
(checksum[i][0] << 24) + (checksum[i][1] << 16) +
(checksum[i][2] << 8) + (checksum[i][3]));
WRITE_U(stream, checksum_val, 32, "picture_checksum");
CHECKPOINT("checksum[%d] = %u", i, checksum_val);
}
break;
case UVG_HASH_MD5:
uvg_image_md5(frame->rec, checksum, state->encoder_control->bitdepth);
WRITE_U(stream, 2 + num_colors * 16, 8, "size");
WRITE_U(stream, 0, 8, "hash_type"); // 0 = md5
WRITE_U(stream, num_colors==1, 1, "dph_sei_single_component_flag");
WRITE_U(stream, 0, 7, "dph_sei_reserved_zero_7bits");
for (int i = 0; i < num_colors; ++i) {
for (int b = 0; b < 16; ++b) {
WRITE_U(stream, checksum[i][b], 8, "picture_md5");
}
}
break;
case UVG_HASH_NONE:
// Means we shouldn't be writing this SEI.
assert(0);
}
uvg_bitstream_align(stream);
// spec:sei_rbsp() rbsp_trailing_bits
uvg_bitstream_add_rbsp_trailing_bits(stream);
}
static void encoder_state_write_slice_header(
bitstream_t * stream,
encoder_state_t * state,
bool independent)
{
uvg_nal_write(stream, state->frame->pictype, (state->frame->pictype==UVG_NAL_STSA)?1:0, state->frame->first_nal);
state->frame->first_nal = false;
uvg_encoder_state_write_bitstream_slice_header(stream, state, independent);
uvg_bitstream_add_rbsp_trailing_bits(stream);
}
/**
* \brief Move child state bitstreams to the parent stream.
*/
static void encoder_state_write_bitstream_children(encoder_state_t * const state)
{
// Write Slice headers to the parent stream instead of the child stream
// in case the child stream is a leaf with something in it already.
for (int i = 0; state->children[i].encoder_control; ++i) {
if (state->children[i].type == ENCODER_STATE_TYPE_SLICE) {
encoder_state_write_slice_header(&state->stream, &state->children[i], true);
} else if (state->children[i].type == ENCODER_STATE_TYPE_WAVEFRONT_ROW) {
if ((state->encoder_control->cfg.slices & UVG_SLICES_WPP) && i != 0) {
// Add header for dependent WPP row slice.
encoder_state_write_slice_header(&state->stream, &state->children[i], false);
}
}
uvg_encoder_state_write_bitstream(&state->children[i]);
uvg_bitstream_move(&state->stream, &state->children[i].stream);
}
}
static void encoder_state_write_bitstream_main(encoder_state_t * const state)
{
const encoder_control_t * const encoder = state->encoder_control;
bitstream_t * const stream = &state->stream;
uint64_t curpos = uvg_bitstream_tell(stream);
// The first NAL unit of the access unit must use a long start code.
state->frame->first_nal = true;
// Access Unit Delimiter (AUD)
if (encoder->cfg.aud_enable) {
state->frame->first_nal = false;
encoder_state_write_bitstream_aud(state);
}
if (encoder_state_must_write_vps(state)) {
state->frame->first_nal = false;
uvg_encoder_state_write_parameter_sets(&state->stream, state);
}
// Send uvg266 version information only in the first frame.
if (state->frame->num == 0 && encoder->cfg.add_encoder_info) {
uvg_nal_write(stream, UVG_NAL_PREFIX_SEI_NUT, 0, state->frame->first_nal);
state->frame->first_nal = false;
encoder_state_write_bitstream_prefix_sei_version(state);
// spec:sei_rbsp() rbsp_trailing_bits
uvg_bitstream_add_rbsp_trailing_bits(stream);
}
//SEI messages for interlacing
if (encoder->vui.frame_field_info_present_flag) {
// These should be optional, needed for earlier versions
// of HM decoder to accept bitstream
//uvg_nal_write(stream, UVG_NAL_PREFIX_SEI_NUT, 0, 0);
//encoder_state_write_active_parameter_sets_sei_message(state);
//uvg_bitstream_rbsp_trailing_bits(stream);
uvg_nal_write(stream, UVG_NAL_PREFIX_SEI_NUT, 0, state->frame->first_nal);
state->frame->first_nal = false;
encoder_state_write_picture_timing_sei_message(state);
// spec:sei_rbsp() rbsp_trailing_bits
uvg_bitstream_add_rbsp_trailing_bits(stream);
}
uvg_encode_lmcs_adaptive_parameter_set(state);
// Adaptation parameter set (APS)
uvg_encode_alf_adaptive_parameter_set(state);
encoder_state_write_bitstream_children(state);
if (state->encoder_control->cfg.hash != UVG_HASH_NONE) {
// Calculate checksum
add_checksum(state);
}
//uvg_nal_write(stream, UVG_NAL_EOS_NUT, 0, 1);
//uvg_nal_write(stream, UVG_NAL_EOS_NUT, 0, 1);
//Get bitstream length for stats
uint64_t newpos = uvg_bitstream_tell(stream);
state->stats_bitstream_length = (uint32_t)((newpos >> 3) - (curpos >> 3));
if (state->frame->num > 0) {
state->frame->total_bits_coded = state->previous_encoder_state->frame->total_bits_coded;
}
state->frame->total_bits_coded += newpos - curpos;
state->frame->cur_gop_bits_coded = state->previous_encoder_state->frame->cur_gop_bits_coded;
state->frame->cur_gop_bits_coded += newpos - curpos;
}
void uvg_encoder_state_write_bitstream(encoder_state_t * const state)
{
if (!state->is_leaf) {
switch (state->type) {
case ENCODER_STATE_TYPE_MAIN:
encoder_state_write_bitstream_main(state);
break;
case ENCODER_STATE_TYPE_TILE:
case ENCODER_STATE_TYPE_SLICE:
encoder_state_write_bitstream_children(state);
break;
default:
fprintf(stderr, "Unsupported node type %c!\n", state->type);
assert(0);
}
}
}
void uvg_encoder_state_worker_write_bitstream(void * opaque)
{
uvg_encoder_state_write_bitstream((encoder_state_t *) opaque);
}
void uvg_encoder_state_write_parameter_sets(bitstream_t *stream,
encoder_state_t * const state)
{
// Video Parameter Set (VPS)
//uvg_nal_write(stream, UVG_NAL_VPS_NUT, 0, 1);
//encoder_state_write_bitstream_vid_parameter_set(stream, state);
// Sequence Parameter Set (SPS)
uvg_nal_write(stream, UVG_NAL_SPS_NUT, 0, 1);
encoder_state_write_bitstream_seq_parameter_set(stream, state);
// Picture Parameter Set (PPS)
uvg_nal_write(stream, UVG_NAL_PPS_NUT, 0, 1);
encoder_state_write_bitstream_pic_parameter_set(stream, state);
}
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