From: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
To: ffmpeg-devel@ffmpeg.org
Subject: Re: [FFmpeg-devel] [PATCH v6 03/14] vvcdec: add parameter parser for sps, pps, ph, sh
Date: Fri, 8 Dec 2023 13:26:38 +0100
Message-ID: <AS8P250MB0744B43E7BA2ACD52BC4B8F18F8AA@AS8P250MB0744.EURP250.PROD.OUTLOOK.COM> (raw)
In-Reply-To: <TYSPR06MB64331A3519C08E7BCB9BC7FFAA85A@TYSPR06MB6433.apcprd06.prod.outlook.com>
Nuo Mi:
> ---
> libavcodec/vvc/Makefile | 1 +
> libavcodec/vvc/vvc_ps.c | 1149 +++++++++++++++++++++++++++++++++++++++
> libavcodec/vvc/vvc_ps.h | 263 +++++++++
> libavcodec/vvc/vvcdec.h | 7 +
> 4 files changed, 1420 insertions(+)
> create mode 100644 libavcodec/vvc/vvc_ps.c
> create mode 100644 libavcodec/vvc/vvc_ps.h
>
> diff --git a/libavcodec/vvc/Makefile b/libavcodec/vvc/Makefile
> index 8a5c66ab13..b2b187ac6f 100644
> --- a/libavcodec/vvc/Makefile
> +++ b/libavcodec/vvc/Makefile
> @@ -3,3 +3,4 @@ clean::
>
> OBJS-$(CONFIG_VVC_DECODER) += vvc/vvcdec.o \
> vvc/vvc_data.o \
> + vvc/vvc_ps.o \
> diff --git a/libavcodec/vvc/vvc_ps.c b/libavcodec/vvc/vvc_ps.c
> new file mode 100644
> index 0000000000..284e7406c2
> --- /dev/null
> +++ b/libavcodec/vvc/vvc_ps.c
> @@ -0,0 +1,1149 @@
> +/*
> + * VVC parameter set parser
> + *
> + * Copyright (C) 2023 Nuo Mi
> + * Copyright (C) 2022 Xu Mu
> + *
> + * This file is part of FFmpeg.
> + *
> + * FFmpeg is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU Lesser General Public
> + * License as published by the Free Software Foundation; either
> + * version 2.1 of the License, or (at your option) any later version.
> + *
> + * FFmpeg is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + * Lesser General Public License for more details.
> + *
> + * You should have received a copy of the GNU Lesser General Public
> + * License along with FFmpeg; if not, write to the Free Software
> + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
> + */
> +#include "libavcodec/cbs_h266.h"
> +#include "libavutil/imgutils.h"
> +#include "libavcodec/refstruct.h"
> +#include "vvc_data.h"
> +#include "vvc_ps.h"
> +#include "vvcdec.h"
> +
> +static int sps_map_pixel_format(VVCSPS *sps, void *log_ctx)
> +{
> + const H266RawSPS *r = sps->r;
> + const AVPixFmtDescriptor *desc;
> +
> + switch (sps->bit_depth) {
> + case 8:
> + if (r->sps_chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY8;
> + if (r->sps_chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P;
> + if (r->sps_chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P;
> + if (r->sps_chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P;
> + break;
> + case 10:
> + if (r->sps_chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY10;
> + if (r->sps_chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P10;
> + if (r->sps_chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P10;
> + if (r->sps_chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P10;
> + break;
> + case 12:
> + if (r->sps_chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY12;
> + if (r->sps_chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P12;
> + if (r->sps_chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P12;
> + if (r->sps_chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P12;
> + break;
> + default:
> + av_log(log_ctx, AV_LOG_ERROR,
> + "The following bit-depths are currently specified: 8, 10, 12 bits, "
> + "chroma_format_idc is %d, depth is %d\n",
> + r->sps_chroma_format_idc, sps->bit_depth);
> + return AVERROR_INVALIDDATA;
> + }
> +
> + desc = av_pix_fmt_desc_get(sps->pix_fmt);
> + if (!desc)
> + return AVERROR(EINVAL);
> +
> + sps->hshift[0] = sps->vshift[0] = 0;
> + sps->hshift[2] = sps->hshift[1] = desc->log2_chroma_w;
> + sps->vshift[2] = sps->vshift[1] = desc->log2_chroma_h;
> +
> + sps->pixel_shift = sps->bit_depth > 8;
> +
> + return 0;
> +}
> +
> +static int sps_bit_depth(VVCSPS *sps, void *log_ctx)
> +{
> + const H266RawSPS *r = sps->r;
> +
> + sps->bit_depth = r->sps_bitdepth_minus8 + 8;
> + sps->qp_bd_offset = 6 * (sps->bit_depth - 8);
> + sps->log2_transform_range =
> + r->sps_extended_precision_flag ? FFMAX(15, FFMIN(20, sps->bit_depth + 6)) : 15;
> + return sps_map_pixel_format(sps, log_ctx);
> +}
> +
> +static int sps_chroma_qp_table(VVCSPS *sps)
> +{
> + const H266RawSPS *r = sps->r;
> + const int num_qp_tables = r->sps_same_qp_table_for_chroma_flag ?
> + 1 : (r->sps_joint_cbcr_enabled_flag ? 3 : 2);
> +
> + for (int i = 0; i < num_qp_tables; i++) {
> + int num_points_in_qp_table;
> + int8_t qp_in[VVC_MAX_POINTS_IN_QP_TABLE], qp_out[VVC_MAX_POINTS_IN_QP_TABLE];
> + unsigned int delta_qp_in[VVC_MAX_POINTS_IN_QP_TABLE];
> + int off = sps->qp_bd_offset;
> +
> + num_points_in_qp_table = r->sps_num_points_in_qp_table_minus1[i] + 1;
> +
> + qp_out[0] = qp_in[0] = r->sps_qp_table_start_minus26[i] + 26;
> + for (int j = 0; j < num_points_in_qp_table; j++ ) {
> + delta_qp_in[j] = r->sps_delta_qp_in_val_minus1[i][j] + 1;
> + qp_in[j+1] = qp_in[j] + delta_qp_in[j];
> + qp_out[j+1] = qp_out[j] + (r->sps_delta_qp_in_val_minus1[i][j] ^ r->sps_delta_qp_diff_val[i][j]);
> + }
> + sps->chroma_qp_table[i][qp_in[0] + off] = qp_out[0];
> + for (int k = qp_in[0] - 1 + off; k >= 0; k--)
> + sps->chroma_qp_table[i][k] = av_clip(sps->chroma_qp_table[i][k+1]-1, -off, 63);
> +
> + for (int j = 0; j < num_points_in_qp_table; j++) {
> + int sh = delta_qp_in[j] >> 1;
> + for (int k = qp_in[j] + 1 + off, m = 1; k <= qp_in[j+1] + off; k++, m++) {
> + sps->chroma_qp_table[i][k] = sps->chroma_qp_table[i][qp_in[j] + off] +
> + ((qp_out[j+1] - qp_out[j]) * m + sh) / delta_qp_in[j];
> + }
> + }
> + for (int k = qp_in[num_points_in_qp_table] + 1 + off; k <= 63 + off; k++)
> + sps->chroma_qp_table[i][k] = av_clip(sps->chroma_qp_table[i][k-1] + 1, -sps->qp_bd_offset, 63);
> + }
> + if (r->sps_same_qp_table_for_chroma_flag) {
> + memcpy(&sps->chroma_qp_table[1], &sps->chroma_qp_table[0], sizeof(sps->chroma_qp_table[0]));
> + memcpy(&sps->chroma_qp_table[2], &sps->chroma_qp_table[0], sizeof(sps->chroma_qp_table[0]));
> + }
> +
> + return 0;
> +}
> +
> +static void sps_poc(VVCSPS *sps)
> +{
> + sps->max_pic_order_cnt_lsb = 1 << (sps->r->sps_log2_max_pic_order_cnt_lsb_minus4 + 4);
> +}
> +
> +static void sps_inter(VVCSPS *sps)
> +{
> + const H266RawSPS *r = sps->r;
> +
> + sps->max_num_merge_cand = 6 - r->sps_six_minus_max_num_merge_cand;
> + sps->max_num_ibc_merge_cand = 6 - r->sps_six_minus_max_num_ibc_merge_cand;
> +
> + if (sps->r->sps_gpm_enabled_flag) {
> + sps->max_num_gpm_merge_cand = 2;
> + if (sps->max_num_merge_cand >= 3)
> + sps->max_num_gpm_merge_cand = sps->max_num_merge_cand - r->sps_max_num_merge_cand_minus_max_num_gpm_cand;
> + }
> +
> + sps->log2_parallel_merge_level = r->sps_log2_parallel_merge_level_minus2 + 2;
> +}
> +
> +static void sps_partition_constraints(VVCSPS* sps)
> +{
> + const H266RawSPS *r = sps->r;
> +
> + sps->ctb_log2_size_y = r->sps_log2_ctu_size_minus5 + 5;
> + sps->ctb_size_y = 1 << sps->ctb_log2_size_y;
> + sps->min_cb_log2_size_y = r->sps_log2_min_luma_coding_block_size_minus2 + 2;
> + sps->min_cb_size_y = 1 << sps->min_cb_log2_size_y;
> + sps->max_tb_size_y = 1 << (r->sps_max_luma_transform_size_64_flag ? 6 : 5);
> + sps->max_ts_size = 1 << (r->sps_log2_transform_skip_max_size_minus2 + 2);
> +}
> +
> +static void sps_ladf(VVCSPS* sps)
> +{
> + const H266RawSPS *r = sps->r;
> +
> + if (r->sps_ladf_enabled_flag) {
> + sps->num_ladf_intervals = r->sps_num_ladf_intervals_minus2 + 2;
> + sps->ladf_interval_lower_bound[0] = 0;
> + for (int i = 0; i < sps->num_ladf_intervals - 1; i++) {
> + sps->ladf_interval_lower_bound[i + 1] =
> + sps->ladf_interval_lower_bound[i] + r->sps_ladf_delta_threshold_minus1[i] + 1;
> + }
> + }
> +}
> +
> +static int sps_derive(VVCSPS *sps, void *log_ctx)
> +{
> + int ret;
> + const H266RawSPS *r = sps->r;
> +
> + sps->width = r->sps_pic_width_max_in_luma_samples;
> + sps->height = r->sps_pic_height_max_in_luma_samples;
> +
> + ret = sps_bit_depth(sps, log_ctx);
> + if (ret < 0)
> + return ret;
> + sps_poc(sps);
> + sps_inter(sps);
> + sps_partition_constraints(sps);
> + sps_ladf(sps);
> + if (r->sps_chroma_format_idc != 0)
> + sps_chroma_qp_table(sps);
> +
> + return 0;
> +}
> +
> +static void sps_free(FFRefStructOpaque opaque, void *obj)
> +{
> + VVCSPS *sps = (VVCSPS*)obj;
> + ff_refstruct_unref(&sps->r);
> +}
> +
> +static const VVCSPS *sps_alloc(const H266RawSPS *rsps, void *log_ctx)
> +{
> + int ret;
> + VVCSPS *sps = ff_refstruct_alloc_ext(sizeof(*sps), 0, NULL, sps_free);
Missing allocation check.
> +
> + ff_refstruct_replace(&sps->r, rsps);
> +
> + ret = sps_derive(sps, log_ctx);
> + if (ret < 0)
> + goto fail;
> +
> + return sps;
> +
> +fail:
> + ff_refstruct_unref(&sps);
> + return NULL;
> +}
> +
> +static int decode_sps(VVCParamSets *ps, const H266RawSPS *rsps, void *log_ctx)
> +{
> + const int sps_id = rsps->sps_seq_parameter_set_id;
> + const VVCSPS *old_sps = ps->sps_list[sps_id];
> + const VVCSPS *sps;
> +
> + if (old_sps && old_sps->r == rsps)
> + return 0;
> +
> + sps = sps_alloc(rsps, log_ctx);
> + if (!sps)
> + return AVERROR(ENOMEM);
> +
> + ff_refstruct_replace(&ps->sps_list[sps_id], sps);
> + ff_refstruct_unref(&sps);
We know that sps and ps->sps_list[sps_id] don't coincide, so the latter
will always be unreferenced. So you might just as well use one of these:
ff_refstruct_unref(&ps->sps_list[sps_id]);
ps->sps_list[sps_id] = sps;
Or:
FFSWAP(const VVCSPS *, sps, ps->sps_list[sps_id]);
ff_refstruct_unref(&sps);
> +
> + return 0;
> +}
> +
> +static void pps_chroma_qp_offset(VVCPPS *pps)
> +{
> + pps->chroma_qp_offset[CB - 1] = pps->r->pps_cb_qp_offset;
> + pps->chroma_qp_offset[CR - 1] = pps->r->pps_cr_qp_offset;
> + pps->chroma_qp_offset[JCBCR - 1]= pps->r->pps_joint_cbcr_qp_offset_value;
> + for (int i = 0; i < 6; i++) {
> + pps->chroma_qp_offset_list[i][CB - 1] = pps->r->pps_cb_qp_offset_list[i];
> + pps->chroma_qp_offset_list[i][CR - 1] = pps->r->pps_cr_qp_offset_list[i];
> + pps->chroma_qp_offset_list[i][JCBCR - 1]= pps->r->pps_joint_cbcr_qp_offset_list[i];
> + }
> +}
> +
> +static void pps_width_height(VVCPPS *pps, const VVCSPS *sps)
> +{
> + const H266RawPPS *r = pps->r;
> +
> + pps->width = r->pps_pic_width_in_luma_samples;
> + pps->height = r->pps_pic_height_in_luma_samples;
> +
> + pps->ctb_width = AV_CEIL_RSHIFT(pps->width, sps->ctb_log2_size_y);
> + pps->ctb_height = AV_CEIL_RSHIFT(pps->height, sps->ctb_log2_size_y);
> + pps->ctb_count = pps->ctb_width * pps->ctb_height;
> +
> + pps->min_cb_width = pps->width >> sps->min_cb_log2_size_y;
> + pps->min_cb_height = pps->height >> sps->min_cb_log2_size_y;
> +
> + pps->min_pu_width = pps->width >> MIN_PU_LOG2;
> + pps->min_pu_height = pps->height >> MIN_PU_LOG2;
> + pps->min_tu_width = pps->width >> MIN_TU_LOG2;
> + pps->min_tu_height = pps->height >> MIN_TU_LOG2;
> +
> + pps->width32 = AV_CEIL_RSHIFT(pps->width, 5);
> + pps->height32 = AV_CEIL_RSHIFT(pps->height, 5);
> + pps->width64 = AV_CEIL_RSHIFT(pps->width, 6);
> + pps->height64 = AV_CEIL_RSHIFT(pps->height, 6);
> +}
> +
> +static int pps_bd(VVCPPS *pps)
> +{
> + const H266RawPPS *r = pps->r;
> +
> + pps->col_bd = av_calloc(r->num_tile_columns + 1, sizeof(*pps->col_bd));
> + pps->row_bd = av_calloc(r->num_tile_rows + 1, sizeof(*pps->row_bd));
> + pps->ctb_to_col_bd = av_calloc(pps->ctb_width + 1, sizeof(*pps->ctb_to_col_bd));
> + pps->ctb_to_row_bd = av_calloc(pps->ctb_height + 1, sizeof(*pps->ctb_to_col_bd));
> + if (!pps->col_bd || !pps->row_bd || !pps->ctb_to_col_bd || !pps->ctb_to_row_bd)
> + return AVERROR(ENOMEM);
> +
> + for (int i = 0, j = 0; i < r->num_tile_columns; i++) {
> + pps->col_bd[i] = j;
> + j += r->col_width_val[i];
> + for (int k = pps->col_bd[i]; k < j; k++)
> + pps->ctb_to_col_bd[k] = pps->col_bd[i];
> + }
> +
> + for (int i = 0, j = 0; i < r->num_tile_rows; i++) {
> + pps->row_bd[i] = j;
> + j += r->row_height_val[i];
> + for (int k = pps->row_bd[i]; k < j; k++)
> + pps->ctb_to_row_bd[k] = pps->row_bd[i];
> + }
> + return 0;
> +}
> +
> +
> +static int next_tile_idx(int tile_idx, const int i, const H266RawPPS *r)
> +{
> + if (r->pps_tile_idx_delta_present_flag) {
> + tile_idx += r->pps_tile_idx_delta_val[i];
> + } else {
> + tile_idx += r->pps_slice_width_in_tiles_minus1[i] + 1;
> + if (tile_idx % r->num_tile_columns == 0)
> + tile_idx += (r->pps_slice_height_in_tiles_minus1[i]) * r->num_tile_columns;
> + }
> + return tile_idx;
> +}
> +
> +static void tile_xy(int *tile_x, int *tile_y, const int tile_idx, const VVCPPS *pps)
> +{
> + *tile_x = tile_idx % pps->r->num_tile_columns;
> + *tile_y = tile_idx / pps->r->num_tile_columns;
> +}
> +
> +static void ctu_xy(int *ctu_x, int *ctu_y, const int tile_x, const int tile_y, const VVCPPS *pps)
> +{
> + *ctu_x = pps->col_bd[tile_x];
> + *ctu_y = pps->row_bd[tile_y];
> +}
> +
> +static int ctu_rs(const int ctu_x, const int ctu_y, const VVCPPS *pps)
> +{
> + return pps->ctb_width * ctu_y + ctu_x;
> +}
> +
> +static int pps_add_ctus(VVCPPS *pps, int *off, const int ctu_x, const int ctu_y,
> + const int w, const int h)
> +{
> + int start = *off;
> + for (int y = 0; y < h; y++) {
> + for (int x = 0; x < w; x++) {
> + pps->ctb_addr_in_slice[*off] = ctu_rs(ctu_x + x, ctu_y + y, pps);
> + (*off)++;
> + }
> + }
> + return *off - start;
> +}
> +
> +static int pps_one_tile_slices(VVCPPS *pps, const int tile_idx, int i, int *off)
> +{
> + const H266RawPPS *r = pps->r;
> + int ctu_x, ctu_y, ctu_y_end, tile_x, tile_y;
> +
> + tile_xy(&tile_x, &tile_y, tile_idx, pps);
> + ctu_xy(&ctu_x, &ctu_y, tile_x, tile_y, pps);
> + ctu_y_end = ctu_y + r->row_height_val[tile_y];
> + while (ctu_y < ctu_y_end) {
> + pps->slice_start_offset[i] = *off;
> + pps->num_ctus_in_slice[i] = pps_add_ctus(pps, off, ctu_x, ctu_y,
> + r->col_width_val[tile_x], r->slice_height_in_ctus[i]);
> + ctu_y += r->slice_height_in_ctus[i++];
> + }
> + i--;
> + return i;
> +}
> +
> +static void pps_multi_tiles_slice(VVCPPS *pps, const int tile_idx, const int i, int *off)
> +{
> + const H266RawPPS *r = pps->r;
> + int ctu_x, ctu_y,tile_x, tile_y;
> +
> + tile_xy(&tile_x, &tile_y, tile_idx, pps);
> + pps->slice_start_offset[i] = *off;
> + pps->num_ctus_in_slice[i] = 0;
> + for (int ty = tile_y; ty <= tile_y + r->pps_slice_height_in_tiles_minus1[i]; ty++) {
> + for (int tx = tile_x; tx <= tile_x + r->pps_slice_width_in_tiles_minus1[i]; tx++) {
> + ctu_xy(&ctu_x, &ctu_y, tx, ty, pps);
> + pps->num_ctus_in_slice[i] += pps_add_ctus(pps, off, ctu_x, ctu_y,
> + r->col_width_val[tx], r->row_height_val[ty]);
> + }
> + }
> +}
> +
> +static void pps_rect_slice(VVCPPS* pps)
> +{
> + const H266RawPPS* r = pps->r;
> + int tile_idx = 0, off = 0;
> +
> + for (int i = 0; i < r->pps_num_slices_in_pic_minus1 + 1; i++) {
> + if (!r->pps_slice_width_in_tiles_minus1[i] &&
> + !r->pps_slice_height_in_tiles_minus1[i]) {
> + i = pps_one_tile_slices(pps, tile_idx, i, &off);
> + } else {
> + pps_multi_tiles_slice(pps, tile_idx, i, &off);
> +
> + }
> + tile_idx = next_tile_idx(tile_idx, i, r);
> + }
> +}
> +
> +static void pps_no_rect_slice(VVCPPS* pps)
> +{
> + const H266RawPPS* r = pps->r;
> + int ctu_x, ctu_y, off = 0;
> +
> + for (int tile_y = 0; tile_y < r->num_tile_rows; tile_y++) {
> + for (int tile_x = 0; tile_x < r->num_tile_columns; tile_x++) {
> + ctu_xy(&ctu_x, &ctu_y, tile_x, tile_y, pps);
> + pps_add_ctus(pps, &off, ctu_x, ctu_y, r->col_width_val[tile_x], r->row_height_val[tile_y]);
> + }
> + }
> +}
> +
> +static int pps_slice_map(VVCPPS *pps)
> +{
> + pps->ctb_addr_in_slice = av_calloc(pps->ctb_count, sizeof(*pps->ctb_addr_in_slice));
> + if (!pps->ctb_addr_in_slice)
> + return AVERROR(ENOMEM);
> +
> + if (pps->r->pps_rect_slice_flag)
> + pps_rect_slice(pps);
> + else
> + pps_no_rect_slice(pps);
> +
> + return 0;
> +}
> +
> +static void pps_ref_wraparound_offset(VVCPPS *pps, const VVCSPS *sps)
> +{
> + const H266RawPPS *r = pps->r;
> +
> + if (r->pps_ref_wraparound_enabled_flag)
> + pps->ref_wraparound_offset = (pps->width / sps->min_cb_size_y) - r->pps_pic_width_minus_wraparound_offset;
> +}
> +
> +static int pps_derive(VVCPPS *pps, const VVCSPS *sps)
> +{
> + int ret;
> +
> + pps_chroma_qp_offset(pps);
> + pps_width_height(pps, sps);
> +
> + ret = pps_bd(pps);
> + if (ret < 0)
> + return ret;
> +
> + ret = pps_slice_map(pps);
> + if (ret < 0)
> + return ret;
> +
> + pps_ref_wraparound_offset(pps, sps);
> +
> + return 0;
> +}
> +
> +static void pps_free(FFRefStructOpaque opaque, void *obj)
> +{
> + VVCPPS *pps = (VVCPPS *)obj;
> +
> + ff_refstruct_unref(&pps->r);
> +
> + av_freep(&pps->col_bd);
> + av_freep(&pps->row_bd);
> + av_freep(&pps->ctb_to_col_bd);
> + av_freep(&pps->ctb_to_row_bd);
> + av_freep(&pps->ctb_addr_in_slice);
> +}
> +
> +static const VVCPPS *pps_alloc(const H266RawPPS *rpps, const VVCSPS *sps)
> +{
> + int ret;
> + VVCPPS *pps = ff_refstruct_alloc_ext(sizeof(*pps), 0, NULL, pps_free);
> +
> + if (!pps)
> + return NULL;
> +
> + ff_refstruct_replace(&pps->r, rpps);
> +
> + ret = pps_derive(pps, sps);
> + if (ret < 0)
> + goto fail;
> +
> + return pps;
> +
> +fail:
> + ff_refstruct_unref(&pps);
> + return NULL;
> +}
> +
> +static int decode_pps(VVCParamSets *ps, const H266RawPPS *rpps)
> +{
> + int ret = 0;
> + const int pps_id = rpps->pps_pic_parameter_set_id;
> + const int sps_id = rpps->pps_seq_parameter_set_id;
> + const VVCPPS *old_pps = ps->pps_list[pps_id];
> + const VVCPPS *pps;
> +
> + if (old_pps && old_pps->r == rpps)
> + return 0;
> +
> + pps = pps_alloc(rpps, ps->sps_list[sps_id]);
> + if (!pps)
> + return AVERROR(ENOMEM);
> +
> + ff_refstruct_replace(&ps->pps_list[pps_id], pps);
> + ff_refstruct_unref(&pps);
> +
> + return ret;
> +}
> +
> +static int decode_ps(VVCParamSets *ps, const CodedBitstreamH266Context *h266, void *log_ctx)
> +{
> + const H266RawPictureHeader *ph = h266->ph;
> + const H266RawPPS *rpps;
> + const H266RawSPS *rsps;
> + int ret;
> +
> + if (!ph)
> + return AVERROR_INVALIDDATA;
> +
> + rpps = h266->pps[ph->ph_pic_parameter_set_id];
> + if (!rpps)
> + return AVERROR_INVALIDDATA;
> +
> + rsps = h266->sps[rpps->pps_seq_parameter_set_id];
> + if (!rsps)
> + return AVERROR_INVALIDDATA;
> +
> + ret = decode_sps(ps, rsps, log_ctx);
> + if (ret < 0)
> + return ret;
> +
> + ret = decode_pps(ps, rpps);
> + if (ret < 0)
> + return ret;
> +
> + return 0;
> +}
> +
> +#define WEIGHT_TABLE(x) \
> + w->nb_weights[L##x] = r->num_weights_l##x; \
> + for (int i = 0; i < w->nb_weights[L##x]; i++) { \
> + w->weight_flag[L##x][LUMA][i] = r->luma_weight_l##x##_flag[i]; \
> + w->weight_flag[L##x][CHROMA][i] = r->chroma_weight_l##x##_flag[i]; \
> + w->weight[L##x][LUMA][i] = denom[LUMA] + r->delta_luma_weight_l##x[i]; \
> + w->offset[L##x][LUMA][i] = r->luma_offset_l##x[i]; \
> + for (int j = CB; j <= CR; j++) { \
> + w->weight[L##x][j][i] = denom[CHROMA] + r->delta_chroma_weight_l##x[i][j - 1]; \
> + w->offset[L##x][j][i] = 128 + r->delta_chroma_offset_l##x[i][j - 1]; \
> + w->offset[L##x][j][i] -= (128 * w->weight[L##x][j][i]) >> w->log2_denom[CHROMA]; \
> + w->offset[L##x][j][i] = av_clip_intp2(w->offset[L##x][j][i], 7); \
> + } \
> + } \
> +
> +static void pred_weight_table(PredWeightTable *w, const H266RawPredWeightTable *r)
> +{
> + int denom[2];
> +
> + w->log2_denom[LUMA] = r->luma_log2_weight_denom;
> + w->log2_denom[CHROMA] = w->log2_denom[LUMA] + r->delta_chroma_log2_weight_denom;
> + denom[LUMA] = 1 << w->log2_denom[LUMA];
> + denom[CHROMA] = 1 << w->log2_denom[CHROMA];
> + WEIGHT_TABLE(0)
> + WEIGHT_TABLE(1)
> +}
> +
> +// 8.3.1 Decoding process for picture order count
> +static int ph_compute_poc(const H266RawPictureHeader *ph, const H266RawSPS *sps, const int poc_tid0, const int is_clvss)
> +{
> + const int max_poc_lsb = 1 << (sps->sps_log2_max_pic_order_cnt_lsb_minus4 + 4);
> + const int prev_poc_lsb = poc_tid0 % max_poc_lsb;
> + const int prev_poc_msb = poc_tid0 - prev_poc_lsb;
> + const int poc_lsb = ph->ph_pic_order_cnt_lsb;
> + int poc_msb;
> +
> + if (ph->ph_poc_msb_cycle_present_flag) {
> + poc_msb = ph->ph_poc_msb_cycle_val * max_poc_lsb;
> + } else if (is_clvss) {
> + poc_msb = 0;
> + } else {
> + if (poc_lsb < prev_poc_lsb && prev_poc_lsb - poc_lsb >= max_poc_lsb / 2)
> + poc_msb = prev_poc_msb + max_poc_lsb;
> + else if (poc_lsb > prev_poc_lsb && poc_lsb - prev_poc_lsb > max_poc_lsb / 2)
> + poc_msb = prev_poc_msb - max_poc_lsb;
> + else
> + poc_msb = prev_poc_msb;
> + }
> +
> + return poc_msb + poc_lsb;
> +}
> +
> +static av_always_inline uint16_t lmcs_derive_lut_sample(uint16_t sample,
> + uint16_t *pivot1, uint16_t *pivot2, uint16_t *scale_coeff, const int idx, const int max)
> +{
> + const int lut_sample =
> + pivot1[idx] + ((scale_coeff[idx] * (sample - pivot2[idx]) + (1<< 10)) >> 11);
> + return av_clip(lut_sample, 0, max - 1);
> +}
> +
> +//8.8.2.2 Inverse mapping process for a luma sample
> +static int lmcs_derive_lut(VVCLMCS *lmcs, const H266RawAPS *rlmcs, const H266RawSPS *sps)
> +{
> + const int bit_depth = (sps->sps_bitdepth_minus8 + 8);
> + const int max = (1 << bit_depth);
> + const int org_cw = max / LMCS_MAX_BIN_SIZE;
> + const int shift = av_log2(org_cw);
> + const int off = 1 << (shift - 1);
> + int cw[LMCS_MAX_BIN_SIZE];
> + uint16_t input_pivot[LMCS_MAX_BIN_SIZE];
> + uint16_t scale_coeff[LMCS_MAX_BIN_SIZE];
> + uint16_t inv_scale_coeff[LMCS_MAX_BIN_SIZE];
> + int i, delta_crs;
> + if (bit_depth > LMCS_MAX_BIT_DEPTH)
> + return AVERROR_PATCHWELCOME;
> +
> + if (!rlmcs)
> + return AVERROR_INVALIDDATA;
> +
> + lmcs->min_bin_idx = rlmcs->lmcs_min_bin_idx;
> + lmcs->max_bin_idx = LMCS_MAX_BIN_SIZE - 1 - rlmcs->lmcs_min_bin_idx;
> +
> + memset(cw, 0, sizeof(cw));
> + for (int i = lmcs->min_bin_idx; i <= lmcs->max_bin_idx; i++)
> + cw[i] = org_cw + (1 - 2 * rlmcs->lmcs_delta_sign_cw_flag[i]) * rlmcs->lmcs_delta_abs_cw[i];
> +
> + delta_crs = (1 - 2 * rlmcs->lmcs_delta_sign_crs_flag) * rlmcs->lmcs_delta_abs_crs;
> +
> + lmcs->pivot[0] = 0;
> + for (i = 0; i < LMCS_MAX_BIN_SIZE; i++) {
> + input_pivot[i] = i * org_cw;
> + lmcs->pivot[i + 1] = lmcs->pivot[i] + cw[i];
> + scale_coeff[i] = (cw[i] * (1 << 11) + off) >> shift;
> + if (cw[i] == 0) {
> + inv_scale_coeff[i] = 0;
> + lmcs->chroma_scale_coeff[i] = (1 << 11);
> + } else {
> + inv_scale_coeff[i] = org_cw * (1 << 11) / cw[i];
> + lmcs->chroma_scale_coeff[i] = org_cw * (1 << 11) / (cw[i] + delta_crs);
> + }
> + }
> +
> + //derive lmcs_fwd_lut
> + for (uint16_t sample = 0; sample < max; sample++) {
> + const int idx_y = sample / org_cw;
> + const uint16_t fwd_sample = lmcs_derive_lut_sample(sample, lmcs->pivot,
> + input_pivot, scale_coeff, idx_y, max);
> + if (bit_depth > 8)
> + ((uint16_t *)lmcs->fwd_lut)[sample] = fwd_sample;
> + else
> + lmcs->fwd_lut[sample] = fwd_sample;
> +
> + }
> +
> + //derive lmcs_inv_lut
> + i = lmcs->min_bin_idx;
> + for (uint16_t sample = 0; sample < max; sample++) {
> + uint16_t inv_sample;
> + while (sample >= lmcs->pivot[i + 1] && i <= lmcs->max_bin_idx)
> + i++;
> +
> + inv_sample = lmcs_derive_lut_sample(sample, input_pivot, lmcs->pivot,
> + inv_scale_coeff, i, max);
> +
> + if (bit_depth > 8)
> + ((uint16_t *)lmcs->inv_lut)[sample] = inv_sample;
> + else
> + lmcs->inv_lut[sample] = inv_sample;
> + }
> +
> + return 0;
> +}
> +
> +static int ph_max_num_subblock_merge_cand(const H266RawSPS *sps, const H266RawPictureHeader *ph)
> +{
> + if (sps->sps_affine_enabled_flag)
> + return 5 - sps->sps_five_minus_max_num_subblock_merge_cand;
> + return sps->sps_sbtmvp_enabled_flag && ph->ph_temporal_mvp_enabled_flag;
> +}
> +
> +static int ph_derive(VVCPH *ph, const H266RawSPS *sps, const H266RawPPS *pps, const int poc_tid0, const int is_clvss)
> +{
> + ph->max_num_subblock_merge_cand = ph_max_num_subblock_merge_cand(sps, ph->r);
> +
> + ph->poc = ph_compute_poc(ph->r, sps, poc_tid0, is_clvss);
> +
> + if (pps->pps_wp_info_in_ph_flag)
> + pred_weight_table(&ph->pwt, &ph->r->ph_pred_weight_table);
> +
> + return 0;
> +}
> +
> +static int decode_ph(VVCFrameParamSets *fps, const H266RawPictureHeader *rph, void *rph_ref,
> + const int poc_tid0, const int is_clvss)
> +{
> + int ret;
> + VVCPH *ph = &fps->ph;
> + const H266RawSPS *sps = fps->sps->r;
> + const H266RawPPS *pps = fps->pps->r;
> +
> + ph->r = rph;
> + ff_refstruct_replace(&ph->rref, rph_ref);
> + ret = ph_derive(ph, sps, pps, poc_tid0, is_clvss);
> + if (ret < 0)
> + return ret;
> +
> + return 0;
> +}
> +
> +static int decode_frame_ps(VVCFrameParamSets *fps, const VVCParamSets *ps,
> + const CodedBitstreamH266Context *h266, const int poc_tid0, const int is_clvss)
> +{
> + const H266RawPictureHeader *ph = h266->ph;
> + const H266RawPPS *rpps;
> + int ret;
> +
> + if (!ph)
> + return AVERROR_INVALIDDATA;
> +
> + rpps = h266->pps[ph->ph_pic_parameter_set_id];
> + if (!rpps)
> + return AVERROR_INVALIDDATA;
> +
> + ff_refstruct_replace(&fps->sps, ps->sps_list[rpps->pps_seq_parameter_set_id]);
> + ff_refstruct_replace(&fps->pps, ps->pps_list[rpps->pps_pic_parameter_set_id]);
> +
> + ret = decode_ph(fps, ph, h266->ph_ref, poc_tid0, is_clvss);
> + if (ret < 0)
> + return ret;
> +
> + if (ph->ph_explicit_scaling_list_enabled_flag)
> + ff_refstruct_replace(&fps->sl, ps->scaling_list[ph->ph_scaling_list_aps_id]);
> +
> + if (ph->ph_lmcs_enabled_flag) {
> + ret = lmcs_derive_lut(&fps->lmcs, ps->lmcs_list[ph->ph_lmcs_aps_id], fps->sps->r);
> + if (ret < 0)
> + return ret;
> + }
> +
> + for (int i = 0; i < FF_ARRAY_ELEMS(fps->alf_list); i++)
> + ff_refstruct_replace(&fps->alf_list[i], ps->alf_list[i]);
> +
> + return 0;
> +}
> +
> +static void decode_recovery_flag(VVCContext *s)
> +{
> + if (IS_IDR(s))
> + s->no_output_before_recovery_flag = 0;
> + else if (IS_CRA(s) || IS_GDR(s))
> + s->no_output_before_recovery_flag = s->last_eos;
> +}
> +
> +static void decode_recovery_poc(VVCContext *s, const VVCPH *ph)
> +{
> + if (s->no_output_before_recovery_flag) {
> + if (IS_GDR(s))
> + s->gdr_recovery_point_poc = ph->poc + ph->r->ph_recovery_poc_cnt;
> + if (!GDR_IS_RECOVERED(s) && s->gdr_recovery_point_poc <= ph->poc)
> + GDR_SET_RECOVERED(s);
> + }
> +}
> +
> +int ff_vvc_decode_frame_ps(VVCFrameParamSets *fps, struct VVCContext *s)
> +{
> + int ret = 0;
> + VVCParamSets *ps = &s->ps;
> + const CodedBitstreamH266Context *h266 = s->cbc->priv_data;
> +
> + ret = decode_ps(ps, h266, s->avctx);
> + if (ret < 0)
> + return ret;
> +
> + decode_recovery_flag(s);
> + ret = decode_frame_ps(fps, ps, h266, s->poc_tid0, IS_CLVSS(s));
> + decode_recovery_poc(s, &fps->ph);
> + return ret;
> +}
> +
> +void ff_vvc_frame_ps_free(VVCFrameParamSets *fps)
> +{
> + ff_refstruct_unref(&fps->sps);
> + ff_refstruct_unref(&fps->pps);
> + ff_refstruct_unref(&fps->ph.rref);
> + ff_refstruct_unref(&fps->sl);
> + for (int i = 0; i < FF_ARRAY_ELEMS(fps->alf_list); i++)
> + ff_refstruct_unref(&fps->alf_list[i]);
> +}
> +
> +void ff_vvc_ps_uninit(VVCParamSets *ps)
> +{
> + int i;
> +
> + for (i = 0; i < FF_ARRAY_ELEMS(ps->scaling_list); i++)
> + ff_refstruct_unref(&ps->scaling_list[i]);
> + for (i = 0; i < FF_ARRAY_ELEMS(ps->lmcs_list); i++)
> + ff_refstruct_unref(&ps->lmcs_list[i]);
> + for (i = 0; i < FF_ARRAY_ELEMS(ps->alf_list); i++)
> + ff_refstruct_unref(&ps->alf_list[i]);
> + for (i = 0; i < FF_ARRAY_ELEMS(ps->sps_list); i++)
> + ff_refstruct_unref(&ps->sps_list[i]);
> + for (i = 0; i < FF_ARRAY_ELEMS(ps->pps_list); i++)
> + ff_refstruct_unref(&ps->pps_list[i]);
> +}
> +
> +enum {
> + APS_ALF,
> + APS_LMCS,
> + APS_SCALING,
> +};
> +
> +static void alf_coeff(int16_t *coeff,
> + const uint8_t *abs, const uint8_t *sign, const int size)
> +{
> + for (int i = 0; i < size; i++)
> + coeff[i] = (1 - 2 * sign[i]) * abs[i];
> +}
> +
> +static void alf_coeff_cc(int16_t *coeff,
> + const uint8_t *mapped_abs, const uint8_t *sign)
> +{
> + for (int i = 0; i < ALF_NUM_COEFF_CC; i++) {
> + int c = mapped_abs[i];;
> + if (c)
> + c = (1 - 2 * sign[i]) * (1 << (c - 1));
> + coeff[i] = c;
> + }
> +}
> +
> +static void alf_luma(VVCALF *alf, const H266RawAPS *aps)
> +{
> + if (!aps->alf_luma_filter_signal_flag)
> + return;
> +
> + for (int i = 0; i < ALF_NUM_FILTERS_LUMA; i++) {
> + const int ref = aps->alf_luma_coeff_delta_idx[i];
> + const uint8_t *abs = aps->alf_luma_coeff_abs[ref];
> + const uint8_t *sign = aps->alf_luma_coeff_sign[ref];
> +
> + alf_coeff(alf->luma_coeff[i], abs, sign, ALF_NUM_COEFF_LUMA);
> + memcpy(alf->luma_clip_idx[i], aps->alf_luma_clip_idx[ref],
> + sizeof(alf->luma_clip_idx[i]));
> + }
> +}
> +
> +static void alf_chroma(VVCALF *alf, const H266RawAPS *aps)
> +{
> + if (!aps->alf_chroma_filter_signal_flag)
> + return;
> +
> + alf->num_chroma_filters = aps->alf_chroma_num_alt_filters_minus1 + 1;
> + for (int i = 0; i < alf->num_chroma_filters; i++) {
> + const uint8_t *abs = aps->alf_chroma_coeff_abs[i];
> + const uint8_t *sign = aps->alf_chroma_coeff_sign[i];
> +
> + alf_coeff(alf->chroma_coeff[i], abs, sign, ALF_NUM_COEFF_CHROMA);
> + memcpy(alf->chroma_clip_idx[i], aps->alf_chroma_clip_idx[i],
> + sizeof(alf->chroma_clip_idx[i]));
> + }
> +}
> +
> +static void alf_cc(VVCALF *alf, const H266RawAPS *aps)
> +{
> + const uint8_t (*abs[])[ALF_NUM_COEFF_CC] =
> + { aps->alf_cc_cb_mapped_coeff_abs, aps->alf_cc_cr_mapped_coeff_abs };
> + const uint8_t (*sign[])[ALF_NUM_COEFF_CC] =
> + {aps->alf_cc_cb_coeff_sign, aps->alf_cc_cr_coeff_sign };
> + const int signaled[] = { aps->alf_cc_cb_filter_signal_flag, aps->alf_cc_cr_filter_signal_flag};
> +
> + alf->num_cc_filters[0] = aps->alf_cc_cb_filters_signalled_minus1 + 1;
> + alf->num_cc_filters[1] = aps->alf_cc_cr_filters_signalled_minus1 + 1;
> +
> + for (int idx = 0; idx < 2; idx++) {
> + if (signaled[idx]) {
> + for (int i = 0; i < alf->num_cc_filters[idx]; i++)
> + alf_coeff_cc(alf->cc_coeff[idx][i], abs[idx][i], sign[idx][i]);
> + }
> + }
> +}
> +
> +static void alf_derive(VVCALF *alf, const H266RawAPS *aps)
> +{
> + alf_luma(alf, aps);
> + alf_chroma(alf, aps);
> + alf_cc(alf, aps);
> +}
> +
> +static int aps_decode_alf(const VVCALF **alf, const H266RawAPS *aps)
> +{
> + VVCALF *a = ff_refstruct_allocz(sizeof(*a));
> + if (!a)
> + return AVERROR(ENOMEM);
> +
> + alf_derive(a, aps);
> + ff_refstruct_replace(alf, a);
> + ff_refstruct_unref(&a);
> +
> + return 0;
> +}
> +
> +static int is_luma_list(const int id)
> +{
> + return id % VVC_MAX_SAMPLE_ARRAYS == SL_START_4x4 || id == SL_START_64x64 + 1;
> +}
> +
> +static int derive_matrix_size(const int id)
> +{
> + return id < SL_START_4x4 ? 2 : (id < SL_START_8x8 ? 4 : 8);
> +}
> +
> +// 7.4.3.20 Scaling list data semantics
> +static void scaling_derive(VVCScalingList *sl, const H266RawAPS *aps)
> +{
> + for (int id = 0; id < SL_MAX_ID; id++) {
> + const int matrix_size = derive_matrix_size(id);
> + const int log2_size = log2(matrix_size);
> + const int list_size = matrix_size * matrix_size;
> + int coeff[SL_MAX_MATRIX_SIZE * SL_MAX_MATRIX_SIZE];
> + const uint8_t *pred;
> + const int *scaling_list;
> + int dc = 0;
> +
> + if (aps->aps_chroma_present_flag || is_luma_list(id)) {
> + if (!aps->scaling_list_copy_mode_flag[id]) {
> + int next_coef = 0;
> +
> + if (id >= SL_START_16x16)
> + dc = next_coef = aps->scaling_list_dc_coef[id - SL_START_16x16];
> +
> + for (int i = 0; i < list_size; i++) {
> + const int x = ff_vvc_diag_scan_x[3][3][i];
> + const int y = ff_vvc_diag_scan_y[3][3][i];
> +
> + if (!(id >= SL_START_64x64 && x >= 4 && y >= 4))
> + next_coef += aps->scaling_list_delta_coef[id][i];
> + coeff[i] = next_coef;
> + }
> + }
> + }
> +
> + //dc
> + if (id >= SL_START_16x16) {
> + if (!aps->scaling_list_copy_mode_flag[id] && !aps->scaling_list_pred_mode_flag[id]) {
> + sl->scaling_matrix_dc_rec[id - SL_START_16x16] = 8;
> + } else if (!aps->scaling_list_pred_id_delta[id]) {
> + sl->scaling_matrix_dc_rec[id - SL_START_16x16] = 16;
> + } else {
> + const int ref_id = id - aps->scaling_list_pred_id_delta[id];
> + if (ref_id >= SL_START_16x16)
> + dc += sl->scaling_matrix_dc_rec[ref_id - SL_START_16x16];
> + else
> + dc += sl->scaling_matrix_rec[ref_id][0];
> + sl->scaling_matrix_dc_rec[id - SL_START_16x16] = dc & 255;
> + }
> + }
> +
> + //ac
> + scaling_list = aps->scaling_list_copy_mode_flag[id] ? ff_vvc_scaling_list0 : coeff;
> + if (!aps->scaling_list_copy_mode_flag[id] && !aps->scaling_list_pred_mode_flag[id])
> + pred = ff_vvc_scaling_pred_8;
> + else if (!aps->scaling_list_pred_id_delta[id])
> + pred = ff_vvc_scaling_pred_16;
> + else
> + pred = sl->scaling_matrix_rec[id - aps->scaling_list_pred_id_delta[id]];
> + for (int i = 0; i < list_size; i++) {
> + const int x = ff_vvc_diag_scan_x[log2_size][log2_size][i];
> + const int y = ff_vvc_diag_scan_y[log2_size][log2_size][i];
> + const int off = y * matrix_size + x;
> + sl->scaling_matrix_rec[id][off] = (pred[off] + scaling_list[i]) & 255;
> + }
> + }
> +}
> +
> +static int aps_decode_scaling(const VVCScalingList **scaling, const H266RawAPS *aps)
> +{
> + VVCScalingList *sl = ff_refstruct_allocz(sizeof(*sl));
> + if (!sl)
> + return AVERROR(ENOMEM);
> +
> + scaling_derive(sl, aps);
> + ff_refstruct_replace(scaling, sl);
> + ff_refstruct_unref(&sl);
> +
> + return 0;
> +}
> +
> +int ff_vvc_decode_aps(VVCParamSets *ps, const CodedBitstreamUnit *unit)
> +{
> + const H266RawAPS *aps = unit->content_ref;
> + int ret = 0;
> +
> + if (!aps)
> + return AVERROR_INVALIDDATA;
> +
> + switch (aps->aps_params_type) {
> + case APS_ALF:
> + ret = aps_decode_alf(&ps->alf_list[aps->aps_adaptation_parameter_set_id], aps);
> + break;
> + case APS_LMCS:
> + ff_refstruct_replace(&ps->lmcs_list[aps->aps_adaptation_parameter_set_id], aps);
> + break;
> + case APS_SCALING:
> + ret = aps_decode_scaling(&ps->scaling_list[aps->aps_adaptation_parameter_set_id], aps);
> + break;
> + }
> +
> + return ret;
> +}
> +
> +static void sh_slice_address(VVCSH *sh, const H266RawSPS *sps, const VVCPPS *pps)
> +{
> + const int slice_address = sh->r->sh_slice_address;
> +
> + if (pps->r->pps_rect_slice_flag) {
> + int pic_level_slice_idx = slice_address;
> + for (int j = 0; j < sh->r->curr_subpic_idx; j++)
> + pic_level_slice_idx += pps->r->num_slices_in_subpic[j];
> + sh->ctb_addr_in_curr_slice = pps->ctb_addr_in_slice + pps->slice_start_offset[pic_level_slice_idx];
> + sh->num_ctus_in_curr_slice = pps->num_ctus_in_slice[pic_level_slice_idx];
> + } else {
> + int tile_x = slice_address % pps->r->num_tile_columns;
> + int tile_y = slice_address / pps->r->num_tile_columns;
> + const int slice_start_ctb = pps->row_bd[tile_y] * pps->ctb_width + pps->col_bd[tile_x] * pps->r->row_height_val[tile_y];
> +
> + sh->ctb_addr_in_curr_slice = pps->ctb_addr_in_slice + slice_start_ctb;
> +
> + sh->num_ctus_in_curr_slice = 0;
> + for (int tile_idx = slice_address; tile_idx <= slice_address + sh->r->sh_num_tiles_in_slice_minus1; tile_idx++) {
> + tile_x = tile_idx % pps->r->num_tile_columns;
> + tile_y = tile_idx / pps->r->num_tile_columns;
> + sh->num_ctus_in_curr_slice += pps->r->row_height_val[tile_y] * pps->r->col_width_val[tile_x];
> + }
> + }
> +}
> +
> +static void sh_qp_y(VVCSH *sh, const H266RawPPS *pps, const H266RawPictureHeader *ph)
> +{
> + const int init_qp = pps->pps_init_qp_minus26 + 26;
> +
> + if (!pps->pps_qp_delta_info_in_ph_flag)
> + sh->slice_qp_y = init_qp + sh->r->sh_qp_delta;
> + else
> + sh->slice_qp_y = init_qp + ph->ph_qp_delta;
> +}
> +
> +static void sh_inter(VVCSH *sh, const H266RawSPS *sps, const H266RawPPS *pps)
> +{
> + const H266RawSliceHeader *rsh = sh->r;
> +
> + if (!pps->pps_wp_info_in_ph_flag &&
> + ((pps->pps_weighted_pred_flag && IS_P(rsh)) ||
> + (pps->pps_weighted_bipred_flag && IS_B(rsh))))
> + pred_weight_table(&sh->pwt, &rsh->sh_pred_weight_table);
> +}
> +
> +static void sh_deblock_offsets(VVCSH *sh)
> +{
> + const H266RawSliceHeader *r = sh->r;
> +
> + if (!r->sh_deblocking_filter_disabled_flag) {
> + sh->deblock.beta_offset[LUMA] = r->sh_luma_beta_offset_div2 << 1;
> + sh->deblock.tc_offset[LUMA] = r->sh_luma_tc_offset_div2 << 1;
> + sh->deblock.beta_offset[CB] = r->sh_cb_beta_offset_div2 << 1;
> + sh->deblock.tc_offset[CB] = r->sh_cb_tc_offset_div2 << 1;
> + sh->deblock.beta_offset[CR] = r->sh_cr_beta_offset_div2 << 1;
> + sh->deblock.tc_offset[CR] = r->sh_cr_tc_offset_div2 << 1;
> + }
> +}
> +
> +static void sh_partition_constraints(VVCSH *sh, const H266RawSPS *sps, const H266RawPictureHeader *ph)
> +{
> + const int min_cb_log2_size_y = sps->sps_log2_min_luma_coding_block_size_minus2 + 2;
> + int min_qt_log2_size_y[2];
> +
> + if (IS_I(sh->r)) {
> + min_qt_log2_size_y[LUMA] = (min_cb_log2_size_y + ph->ph_log2_diff_min_qt_min_cb_intra_slice_luma);
> + min_qt_log2_size_y[CHROMA] = (min_cb_log2_size_y + ph->ph_log2_diff_min_qt_min_cb_intra_slice_chroma);
> +
> + sh->max_bt_size[LUMA] = 1 << (min_qt_log2_size_y[LUMA] + ph->ph_log2_diff_max_bt_min_qt_intra_slice_luma);
> + sh->max_bt_size[CHROMA] = 1 << (min_qt_log2_size_y[CHROMA]+ ph->ph_log2_diff_max_bt_min_qt_intra_slice_chroma);
> +
> + sh->max_tt_size[LUMA] = 1 << (min_qt_log2_size_y[LUMA] + ph->ph_log2_diff_max_tt_min_qt_intra_slice_luma);
> + sh->max_tt_size[CHROMA] = 1 << (min_qt_log2_size_y[CHROMA]+ ph->ph_log2_diff_max_tt_min_qt_intra_slice_chroma);
> +
> + sh->max_mtt_depth[LUMA] = ph->ph_max_mtt_hierarchy_depth_intra_slice_luma;
> + sh->max_mtt_depth[CHROMA] = ph->ph_max_mtt_hierarchy_depth_intra_slice_chroma;
> +
> + sh->cu_qp_delta_subdiv = ph->ph_cu_qp_delta_subdiv_intra_slice;
> + sh->cu_chroma_qp_offset_subdiv = ph->ph_cu_chroma_qp_offset_subdiv_intra_slice;
> + } else {
> + for (int i = LUMA; i <= CHROMA; i++) {
> + min_qt_log2_size_y[i] = (min_cb_log2_size_y + ph->ph_log2_diff_min_qt_min_cb_inter_slice);
> + sh->max_bt_size[i] = 1 << (min_qt_log2_size_y[i] + ph->ph_log2_diff_max_bt_min_qt_inter_slice);
> + sh->max_tt_size[i] = 1 << (min_qt_log2_size_y[i] + ph->ph_log2_diff_max_tt_min_qt_inter_slice);
> + sh->max_mtt_depth[i] = ph->ph_max_mtt_hierarchy_depth_inter_slice;
> + }
> +
> + sh->cu_qp_delta_subdiv = ph->ph_cu_qp_delta_subdiv_inter_slice;
> + sh->cu_chroma_qp_offset_subdiv = ph->ph_cu_chroma_qp_offset_subdiv_inter_slice;
> + }
> +
> + sh->min_qt_size[LUMA] = 1 << min_qt_log2_size_y[LUMA];
> + sh->min_qt_size[CHROMA] = 1 << min_qt_log2_size_y[CHROMA];
> +}
> +
> +static void sh_entry_points(VVCSH *sh, const H266RawSPS *sps, const VVCPPS *pps)
> +{
> + if (sps->sps_entry_point_offsets_present_flag) {
> + for (int i = 1, j = 0; i < sh->num_ctus_in_curr_slice; i++) {
> + const int pre_ctb_addr_x = sh->ctb_addr_in_curr_slice[i - 1] % pps->ctb_width;
> + const int pre_ctb_addr_y = sh->ctb_addr_in_curr_slice[i - 1] / pps->ctb_width;
> + const int ctb_addr_x = sh->ctb_addr_in_curr_slice[i] % pps->ctb_width;
> + const int ctb_addr_y = sh->ctb_addr_in_curr_slice[i] / pps->ctb_width;
> + if (pps->ctb_to_row_bd[ctb_addr_y] != pps->ctb_to_row_bd[pre_ctb_addr_y] ||
> + pps->ctb_to_col_bd[ctb_addr_x] != pps->ctb_to_col_bd[pre_ctb_addr_x] ||
> + (ctb_addr_y != pre_ctb_addr_y && sps->sps_entropy_coding_sync_enabled_flag)) {
> + sh->entry_point_start_ctu[j++] = i;
> + }
> + }
> + }
> +}
> +
> +static int sh_derive(VVCSH *sh, const VVCFrameParamSets *fps)
> +{
> + const H266RawSPS *sps = fps->sps->r;
> + const H266RawPPS *pps = fps->pps->r;
> + const H266RawPictureHeader *ph = fps->ph.r;
> +
> + sh_slice_address(sh, sps, fps->pps);
> + sh_inter(sh, sps, pps);
> + sh_qp_y(sh, pps, ph);
> + sh_deblock_offsets(sh);
> + sh_partition_constraints(sh, sps, ph);
> + sh_entry_points(sh, sps, fps->pps);
> +
> + return 0;
> +}
> +
> +int ff_vvc_decode_sh(VVCSH *sh, const VVCFrameParamSets *fps, const CodedBitstreamUnit *unit)
> +{
> + int ret;
> +
> + if (!fps->sps || !fps->pps)
> + return AVERROR_INVALIDDATA;
> +
> + ff_refstruct_replace(&sh->r, unit->content_ref);
> +
> + ret = sh_derive(sh, fps);
> + if (ret < 0)
> + return ret;
> +
> + return 0;
> +}
> diff --git a/libavcodec/vvc/vvc_ps.h b/libavcodec/vvc/vvc_ps.h
> new file mode 100644
> index 0000000000..ede4e74009
> --- /dev/null
> +++ b/libavcodec/vvc/vvc_ps.h
> @@ -0,0 +1,263 @@
> +/*
> + * VVC parameter set parser
> + *
> + * Copyright (C) 2023 Nuo Mi
> + *
> + * This file is part of FFmpeg.
> + *
> + * FFmpeg is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU Lesser General Public
> + * License as published by the Free Software Foundation; either
> + * version 2.1 of the License, or (at your option) any later version.
> + *
> + * FFmpeg is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + * Lesser General Public License for more details.
> + *
> + * You should have received a copy of the GNU Lesser General Public
> + * License along with FFmpeg; if not, write to the Free Software
> + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
> + */
> +
> +#ifndef AVCODEC_VVC_VVC_PS_H
> +#define AVCODEC_VVC_VVC_PS_H
> +
> +#include "libavcodec/cbs_h266.h"
> +#include "libavcodec/vvc.h"
> +
> +#define IS_IDR(s) ((s)->vcl_unit_type == VVC_IDR_W_RADL || (s)->vcl_unit_type == VVC_IDR_N_LP)
> +#define IS_CRA(s) ((s)->vcl_unit_type == VVC_CRA_NUT)
> +#define IS_IRAP(s) (IS_IDR(s) || IS_CRA(s))
> +#define IS_GDR(s) ((s)->vcl_unit_type == VVC_GDR_NUT)
> +#define IS_CVSS(s) (IS_IRAP(s)|| IS_GDR(s))
> +#define IS_CLVSS(s) (IS_CVSS(s) && s->no_output_before_recovery_flag)
> +#define IS_RASL(s) ((s)->vcl_unit_type == VVC_RASL_NUT)
> +#define IS_RADL(s) ((s)->vcl_unit_type == VVC_RADL_NUT)
> +
> +#define IS_I(rsh) ((rsh)->sh_slice_type == VVC_SLICE_TYPE_I)
> +#define IS_P(rsh) ((rsh)->sh_slice_type == VVC_SLICE_TYPE_P)
> +#define IS_B(rsh) ((rsh)->sh_slice_type == VVC_SLICE_TYPE_B)
> +
> +#define INV_POC INT_MIN
> +#define GDR_IS_RECOVERED(s) (s->gdr_recovery_point_poc == INV_POC)
> +#define GDR_SET_RECOVERED(s) (s->gdr_recovery_point_poc = INV_POC)
> +
> +#define LMCS_MAX_BIT_DEPTH 12
> +#define LMCS_MAX_LUT_SIZE (1 << LMCS_MAX_BIT_DEPTH)
> +#define LMCS_MAX_BIN_SIZE 16
> +#define LADF_MAX_INTERVAL 5
> +
> +enum {
> + CHROMA_FORMAT_MONO,
> + CHROMA_FORMAT_420,
> + CHROMA_FORMAT_422,
> + CHROMA_FORMAT_444,
> +};
> +
> +typedef struct VVCSPS {
> + const H266RawSPS *r; ///< RefStruct reference
> +
> + //derived values
> + uint16_t width;
> + uint16_t height;
> + uint8_t hshift[VVC_MAX_SAMPLE_ARRAYS];
> + uint8_t vshift[VVC_MAX_SAMPLE_ARRAYS];
> + uint32_t max_pic_order_cnt_lsb; ///< MaxPicOrderCntLsb
> +
> + uint8_t pixel_shift;
> + enum AVPixelFormat pix_fmt;
> +
> + uint8_t bit_depth; ///< BitDepth
> + uint8_t qp_bd_offset; ///< QpBdOffset
> + uint8_t ctb_log2_size_y; ///< CtbLog2SizeY
> + uint8_t ctb_size_y; ///< CtbSizeY
> + uint8_t min_cb_log2_size_y; ///< MinCbLog2SizeY
> + uint8_t min_cb_size_y; ///< MinCbSizeY
> + uint8_t max_tb_size_y; ///< MaxTbSizeY
> + uint8_t max_ts_size; ///< MaxTsSize
> + uint8_t max_num_merge_cand; ///< MaxNumMergeCand
> + uint8_t max_num_ibc_merge_cand; ///< MaxNumIbcMergeCand
> + uint8_t max_num_gpm_merge_cand; ///< MaxNumGpmMergeCand
> + uint8_t num_ladf_intervals; ///< sps_num_ladf_intervals_minus2 + 2;
> + uint32_t ladf_interval_lower_bound[LADF_MAX_INTERVAL]; ///< SpsLadfIntervalLowerBound[]
> + uint8_t log2_parallel_merge_level; ///< sps_log2_parallel_merge_level_minus2 + 2;
> + uint8_t log2_transform_range; ///< Log2TransformRange
> + int8_t chroma_qp_table[3][VVC_MAX_POINTS_IN_QP_TABLE]; ///< ChromaQpTable
> +} VVCSPS;
> +
> +typedef struct DBParams {
> + int8_t beta_offset[VVC_MAX_SAMPLE_ARRAYS];
> + int8_t tc_offset[VVC_MAX_SAMPLE_ARRAYS];
> +} DBParams;
> +
> +typedef struct VVCPPS {
> + const H266RawPPS *r; ///< RefStruct reference
> +
> + //derived value;
> + int8_t chroma_qp_offset[3]; ///< pps_cb_qp_offset, pps_cr_qp_offset, pps_joint_cbcr_qp_offset_value
> + int8_t chroma_qp_offset_list[6][3]; ///< pps_cb_qp_offset_list, pps_cr_qp_offset_list, pps_joint_cbcr_qp_offset_list
> +
> + uint16_t width;
> + uint16_t height;
> +
> + uint16_t slice_start_offset[VVC_MAX_SLICES];
> + uint16_t num_ctus_in_slice [VVC_MAX_SLICES];
> +
> + uint16_t min_cb_width;
> + uint16_t min_cb_height;
> +
> + uint16_t ctb_width;
> + uint16_t ctb_height;
> + uint32_t ctb_count;
> +
> + uint16_t min_pu_width;
> + uint16_t min_pu_height;
> + uint16_t min_tu_width;
> + uint16_t min_tu_height;
> +
> + uint32_t *ctb_addr_in_slice; ///< CtbAddrInCurrSlice for entire picture
> + uint16_t *col_bd;
> + uint16_t *row_bd;
> + uint16_t *ctb_to_col_bd;
> + uint16_t *ctb_to_row_bd;
> +
> + uint16_t width32; ///< width in 32 pixels
> + uint16_t height32; ///< height in 32 pixels
> + uint16_t width64; ///< width in 64 pixels
> + uint16_t height64; ///< height in 64 pixels
> +
> + uint16_t ref_wraparound_offset; ///< PpsRefWraparoundOffset
> +
> +} VVCPPS;
> +
> +#define MAX_WEIGHTS 15
> +typedef struct PredWeightTable {
> + uint8_t log2_denom[2]; ///< luma_log2_weight_denom, ChromaLog2WeightDenom
> +
> + uint8_t nb_weights[2]; ///< num_l0_weights, num_l1_weights
> + uint8_t weight_flag[2][2][MAX_WEIGHTS]; ///< luma_weight_l0_flag, chroma_weight_l0_flag,
> + ///< luma_weight_l1_flag, chroma_weight_l1_flag,
> + int16_t weight[2][VVC_MAX_SAMPLE_ARRAYS][MAX_WEIGHTS]; ///< LumaWeightL0, LumaWeightL1, ChromaWeightL0, ChromaWeightL1
> + int16_t offset[2][VVC_MAX_SAMPLE_ARRAYS][MAX_WEIGHTS]; ///< luma_offset_l0, luma_offset_l1, ChromaOffsetL0, ChromaOffsetL1
> +} PredWeightTable;
> +
> +typedef struct VVCPH {
> + const H266RawPictureHeader *r;
> + void *rref; ///< RefStruct reference, backing ph above
> +
> + //derived values
> + uint32_t max_num_subblock_merge_cand; ///< MaxNumSubblockMergeCand
> + int32_t poc; ///< PicOrderCntVal
> + PredWeightTable pwt;
> +} VVCPH;
> +
> +#define ALF_NUM_FILTERS_LUMA 25
> +#define ALF_NUM_FILTERS_CHROMA 8
> +#define ALF_NUM_FILTERS_CC 5
> +
> +#define ALF_NUM_COEFF_LUMA 12
> +#define ALF_NUM_COEFF_CHROMA 6
> +#define ALF_NUM_COEFF_CC 7
> +
> +typedef struct VVCALF {
> + int16_t luma_coeff [ALF_NUM_FILTERS_LUMA][ALF_NUM_COEFF_LUMA];
> + uint8_t luma_clip_idx [ALF_NUM_FILTERS_LUMA][ALF_NUM_COEFF_LUMA];
> +
> + uint8_t num_chroma_filters;
> + int16_t chroma_coeff [ALF_NUM_FILTERS_CHROMA][ALF_NUM_COEFF_CHROMA];
> + uint8_t chroma_clip_idx[ALF_NUM_FILTERS_CHROMA][ALF_NUM_COEFF_CHROMA];
> +
> + uint8_t num_cc_filters[2]; ///< alf_cc_cb_filters_signalled_minus1 + 1, alf_cc_cr_filters_signalled_minus1 + 1
> + int16_t cc_coeff[2][ALF_NUM_FILTERS_CC][ALF_NUM_COEFF_CC];
> +} VVCALF;
> +
> +enum {
> + SL_START_2x2 = 0,
> + SL_START_4x4 = 2,
> + SL_START_8x8 = 8,
> + SL_START_16x16 = 14,
> + SL_START_32x32 = 20,
> + SL_START_64x64 = 26,
> + SL_MAX_ID = 28,
> +};
> +
> +#define SL_MAX_MATRIX_SIZE 8
> +
> +typedef struct VVCScalingList {
> + uint8_t scaling_matrix_rec[SL_MAX_ID][SL_MAX_MATRIX_SIZE * SL_MAX_MATRIX_SIZE]; ///< ScalingMatrixRec
> + uint8_t scaling_matrix_dc_rec[SL_MAX_ID - SL_START_16x16]; ///< ScalingMatrixDcRec[refId − 14]
> +} VVCScalingList;
> +
> +typedef struct VVCLMCS {
> + uint8_t min_bin_idx;
> + uint8_t max_bin_idx;
> +
> + //*2 for high depth
> + uint8_t fwd_lut[LMCS_MAX_LUT_SIZE * 2];
> + uint8_t inv_lut[LMCS_MAX_LUT_SIZE * 2];
> +
> + uint16_t pivot[LMCS_MAX_BIN_SIZE + 1];
> + uint16_t chroma_scale_coeff[LMCS_MAX_BIN_SIZE];
> +} VVCLMCS;
> +
> +#define VVC_MAX_ALF_COUNT 8
> +#define VVC_MAX_LMCS_COUNT 4
> +#define VVC_MAX_SL_COUNT 8
> +
> +typedef struct VVCParamSets {
> + const VVCSPS *sps_list[VVC_MAX_SPS_COUNT]; ///< RefStruct reference
> + const VVCPPS *pps_list[VVC_MAX_PPS_COUNT]; ///< RefStruct reference
> + const VVCALF *alf_list[VVC_MAX_ALF_COUNT]; ///< RefStruct reference
> + const H266RawAPS *lmcs_list[VVC_MAX_LMCS_COUNT]; ///< RefStruct reference
> + const VVCScalingList *scaling_list[VVC_MAX_SL_COUNT]; ///< RefStruct reference
> +} VVCParamSets;
> +
> +typedef struct VVCFrameParamSets {
> + const VVCSPS *sps; ///< RefStruct reference
> + const VVCPPS *pps; ///< RefStruct reference
> + VVCPH ph;
> + const VVCALF *alf_list[VVC_MAX_ALF_COUNT]; ///< RefStruct reference
> + VVCLMCS lmcs;
> + const VVCScalingList *sl; ///< RefStruct reference
> +} VVCFrameParamSets;
> +
> +typedef struct VVCSH {
> + const H266RawSliceHeader *r; ///< RefStruct reference
> +
> + // derived values
> + // ctu address
> + uint32_t num_ctus_in_curr_slice; ///< NumCtusInCurrSlice
> + const uint32_t* ctb_addr_in_curr_slice; ///< CtbAddrInCurrSlice
> +
> + // inter
> + PredWeightTable pwt;
> + int8_t ref_idx_sym[2]; ///< RefIdxSymL0, RefIdxSymL1
> +
> + // qp_y
> + int8_t slice_qp_y; ///< SliceQpY
> +
> + // deblock_offsets
> + DBParams deblock;
> +
> + // partition constrains
> + uint8_t min_qt_size[2]; ///< MinQtSizeY, MinQtSizeC
> + uint8_t max_bt_size[2]; ///< MaxBtSizeY, MaxBtSizeC
> + uint8_t max_tt_size[2]; ///< MaxTtSizeY, MaxTtSizeC
> + uint8_t max_mtt_depth[2]; ///< MaxMttDepthY, MaxMttDepthC
> + uint8_t cu_qp_delta_subdiv; ///< CuQpDeltaSubdiv
> + uint8_t cu_chroma_qp_offset_subdiv; ///< CuChromaQpOffsetSubdiv
> +
> + // entries
> + uint32_t entry_point_start_ctu[VVC_MAX_ENTRY_POINTS]; ///< entry point start in ctu_addr
> +} VVCSH;
> +
> +struct VVCContext;
> +
> +int ff_vvc_decode_frame_ps(VVCFrameParamSets *fps, struct VVCContext *s);
> +int ff_vvc_decode_aps(VVCParamSets *ps, const CodedBitstreamUnit *unit);
> +int ff_vvc_decode_sh(VVCSH *sh, const VVCFrameParamSets *ps, const CodedBitstreamUnit *unit);
> +void ff_vvc_frame_ps_free(VVCFrameParamSets *fps);
> +void ff_vvc_ps_uninit(VVCParamSets *ps);
> +
> +#endif /* AVCODEC_VVC_VVC_PS_H */
> diff --git a/libavcodec/vvc/vvcdec.h b/libavcodec/vvc/vvcdec.h
> index 720d585fd4..6b1021a3be 100644
> --- a/libavcodec/vvc/vvcdec.h
> +++ b/libavcodec/vvc/vvcdec.h
> @@ -26,6 +26,8 @@
>
> #include "libavcodec/vvc.h"
>
> +#include "vvc_ps.h"
> +
> #define LUMA 0
> #define CHROMA 1
> #define CB 1
> @@ -175,6 +177,11 @@ typedef struct VVCFrameContext {
> typedef struct VVCContext {
> struct AVCodecContext *avctx;
>
> + CodedBitstreamContext *cbc;
> + CodedBitstreamFragment current_frame;
> +
> + VVCParamSets ps;
> +
> int temporal_id; ///< temporal_id_plus1 - 1
> int poc_tid0;
>
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next prev parent reply other threads:[~2023-12-08 12:25 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20231205144519.7334-1-nuomi2021@gmail.com>
2023-12-05 14:45 ` [FFmpeg-devel] [PATCH v6 02/14] vvcdec: add vvc_data Nuo Mi
2023-12-05 14:45 ` [FFmpeg-devel] [PATCH v6 03/14] vvcdec: add parameter parser for sps, pps, ph, sh Nuo Mi
2023-12-08 12:26 ` Andreas Rheinhardt [this message]
2023-12-08 16:20 ` Nuo Mi
2023-12-05 14:45 ` [FFmpeg-devel] [PATCH v6 04/14] vvcdec: add cabac decoder Nuo Mi
2023-12-05 14:45 ` [FFmpeg-devel] [PATCH v6 05/14] vvcdec: add reference management Nuo Mi
2023-12-05 14:45 ` [FFmpeg-devel] [PATCH v6 06/14] vvcdec: add motion vector decoder Nuo Mi
2023-12-05 14:45 ` [FFmpeg-devel] [PATCH v6 07/14] vvcdec: add inter prediction Nuo Mi
2023-12-05 14:45 ` [FFmpeg-devel] [PATCH v6 08/14] vvcdec: add inv transform 1d Nuo Mi
2023-12-05 14:45 ` [FFmpeg-devel] [PATCH v6 09/14] vvcdec: add intra prediction Nuo Mi
2023-12-05 14:45 ` [FFmpeg-devel] [PATCH v6 10/14] vvcdec: add LMCS, Deblocking, SAO, and ALF filters Nuo Mi
2023-12-05 14:45 ` [FFmpeg-devel] [PATCH v6 11/14] vvcdec: add dsp init and inv transform Nuo Mi
2023-12-05 14:45 ` [FFmpeg-devel] [PATCH v6 12/14] vvcdec: add CTU parser Nuo Mi
2023-12-05 14:45 ` [FFmpeg-devel] [PATCH v6 13/14] vvcdec: add CTU thread logical Nuo Mi
2023-12-05 14:45 ` [FFmpeg-devel] [PATCH v6 14/14] vvcdec: add full vvc decoder Nuo Mi
2023-12-05 15:20 ` Nuo Mi
2023-12-08 12:19 ` Andreas Rheinhardt
2023-12-08 16:20 ` Nuo Mi
2023-12-09 5:14 ` Andreas Rheinhardt
2023-12-10 12:54 ` Nuo Mi
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