/* * VVC CTU(Coding Tree Unit) parser * * Copyright (C) 2022 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 */ #include "libavcodec/refstruct.h" #include "cabac.h" #include "ctu.h" #include "inter.h" #include "mvs.h" #define PROF_TEMP_SIZE (PROF_BLOCK_SIZE) * sizeof(int16_t) #define TAB_MSM(fc, depth, x, y) fc->tab.msm[(depth)][((y) >> 5) * fc->ps.pps->width32 + ((x) >> 5)] #define TAB_ISPMF(fc, x, y) fc->tab.ispmf[((y) >> 6) * fc->ps.pps->width64 + ((x) >> 6)] typedef enum VVCModeType { MODE_TYPE_ALL, MODE_TYPE_INTER, MODE_TYPE_INTRA, } VVCModeType; static void set_tb_pos(const VVCFrameContext *fc, const TransformBlock *tb) { const int x_tb = tb->x0 >> MIN_TU_LOG2; const int y_tb = tb->y0 >> MIN_TU_LOG2; const int hs = fc->ps.sps->hshift[tb->c_idx]; const int vs = fc->ps.sps->vshift[tb->c_idx]; const int is_chroma = tb->c_idx != 0; const int width = FFMAX(1, tb->tb_width >> (MIN_TU_LOG2 - hs)); const int end = y_tb + FFMAX(1, tb->tb_height >> (MIN_TU_LOG2 - vs)); for (int y = y_tb; y < end; y++) { const int off = y * fc->ps.pps->min_tu_width + x_tb; for (int i = 0; i < width; i++) { fc->tab.tb_pos_x0[is_chroma][off + i] = tb->x0; fc->tab.tb_pos_y0[is_chroma][off + i] = tb->y0; } memset(fc->tab.tb_width [is_chroma] + off, tb->tb_width, width); memset(fc->tab.tb_height[is_chroma] + off, tb->tb_height, width); } } static void set_tb_tab(uint8_t *tab, uint8_t v, const VVCFrameContext *fc, const TransformBlock *tb) { const int width = tb->tb_width << fc->ps.sps->hshift[tb->c_idx]; const int height = tb->tb_height << fc->ps.sps->vshift[tb->c_idx]; for (int h = 0; h < height; h += MIN_TU_SIZE) { const int y = (tb->y0 + h) >> MIN_TU_LOG2; const int off = y * fc->ps.pps->min_tu_width + (tb->x0 >> MIN_TU_LOG2); const int w = FFMAX(1, width >> MIN_TU_LOG2); memset(tab + off, v, w); } } // 8.7.1 Derivation process for quantization parameters static int get_qp_y_pred(const VVCLocalContext *lc) { const VVCFrameContext *fc = lc->fc; const VVCSPS *sps = fc->ps.sps; const VVCPPS *pps = fc->ps.pps; const CodingUnit *cu = lc->cu; const int ctb_log2_size = sps->ctb_log2_size_y; const int ctb_size_mask = (1 << ctb_log2_size) - 1; const int xQg = lc->parse.cu_qg_top_left_x; const int yQg = lc->parse.cu_qg_top_left_y; const int min_cb_width = fc->ps.pps->min_cb_width; const int x_cb = cu->x0 >> sps->min_cb_log2_size_y; const int y_cb = cu->y0 >> sps->min_cb_log2_size_y; const int rx = cu->x0 >> ctb_log2_size; const int ry = cu->y0 >> ctb_log2_size; const int in_same_ctb_a = ((xQg - 1) >> ctb_log2_size) == rx && (yQg >> ctb_log2_size) == ry; const int in_same_ctb_b = (xQg >> ctb_log2_size) == rx && ((yQg - 1) >> ctb_log2_size) == ry; int qPy_pred, qPy_a, qPy_b; if (lc->na.cand_up) { const int first_qg_in_ctu = !(xQg & ctb_size_mask) && !(yQg & ctb_size_mask); const int qPy_up = fc->tab.qp[LUMA][x_cb + (y_cb - 1) * min_cb_width]; if (first_qg_in_ctu && pps->ctb_to_col_bd[xQg >> ctb_log2_size] == xQg >> ctb_log2_size) return qPy_up; } // qPy_pred qPy_pred = lc->ep->is_first_qg ? lc->sc->sh.slice_qp_y : lc->ep->qp_y; // qPy_b if (!lc->na.cand_up || !in_same_ctb_b) qPy_b = qPy_pred; else qPy_b = fc->tab.qp[LUMA][x_cb + (y_cb - 1) * min_cb_width]; // qPy_a if (!lc->na.cand_left || !in_same_ctb_a) qPy_a = qPy_pred; else qPy_a = fc->tab.qp[LUMA][(x_cb - 1) + y_cb * min_cb_width]; av_assert2(qPy_a >= -fc->ps.sps->qp_bd_offset && qPy_a < 63); av_assert2(qPy_b >= -fc->ps.sps->qp_bd_offset && qPy_b < 63); return (qPy_a + qPy_b + 1) >> 1; } static void set_cb_tab(const VVCLocalContext *lc, uint8_t *tab, const uint8_t v) { const VVCFrameContext *fc = lc->fc; const VVCPPS *pps = fc->ps.pps; const CodingUnit *cu = lc->cu; const int log2_min_cb_size = fc->ps.sps->min_cb_log2_size_y; const int x_cb = cu->x0 >> log2_min_cb_size; const int y_cb = cu->y0 >> log2_min_cb_size; const int cb_width = cu->cb_width; const int cb_height = cu->cb_height; int x = y_cb * pps->min_cb_width + x_cb; for (int y = 0; y < (cb_height >> log2_min_cb_size); y++) { const int width = cb_width >> log2_min_cb_size; memset(&tab[x], v, width); x += pps->min_cb_width; } } static int set_qp_y(VVCLocalContext *lc, const int x0, const int y0, const int has_qp_delta) { const VVCSPS *sps = lc->fc->ps.sps; EntryPoint *ep = lc->ep; CodingUnit *cu = lc->cu; int cu_qp_delta = 0; if (!lc->fc->ps.pps->r->pps_cu_qp_delta_enabled_flag) { ep->qp_y = lc->sc->sh.slice_qp_y; } else if (ep->is_first_qg || (lc->parse.cu_qg_top_left_x == x0 && lc->parse.cu_qg_top_left_y == y0)) { ep->qp_y = get_qp_y_pred(lc); ep->is_first_qg = 0; } if (has_qp_delta) { const int cu_qp_delta_abs = ff_vvc_cu_qp_delta_abs(lc); if (cu_qp_delta_abs) cu_qp_delta = ff_vvc_cu_qp_delta_sign_flag(lc) ? -cu_qp_delta_abs : cu_qp_delta_abs; if (cu_qp_delta > (31 + sps->qp_bd_offset / 2) || cu_qp_delta < -(32 + sps->qp_bd_offset / 2)) return AVERROR_INVALIDDATA; lc->parse.is_cu_qp_delta_coded = 1; if (cu_qp_delta) { int off = sps->qp_bd_offset; ep->qp_y = FFUMOD(ep->qp_y + cu_qp_delta + 64 + 2 * off, 64 + off) - off; } } set_cb_tab(lc, lc->fc->tab.qp[LUMA], ep->qp_y); cu->qp[LUMA] = ep->qp_y; return 0; } static void set_qp_c_tab(const VVCLocalContext *lc, const TransformUnit *tu, const TransformBlock *tb) { const int is_jcbcr = tu->joint_cbcr_residual_flag && tu->coded_flag[CB] && tu->coded_flag[CR]; const int idx = is_jcbcr ? JCBCR : tb->c_idx; set_tb_tab(lc->fc->tab.qp[tb->c_idx], lc->cu->qp[idx], lc->fc, tb); } static void set_qp_c(VVCLocalContext *lc) { const VVCFrameContext *fc = lc->fc; const VVCSPS *sps = fc->ps.sps; const VVCPPS *pps = fc->ps.pps; const H266RawSliceHeader *rsh = lc->sc->sh.r; CodingUnit *cu = lc->cu; const int x_center = cu->x0 + cu->cb_width / 2; const int y_center = cu->y0 + cu->cb_height / 2; const int single_tree = cu->tree_type == SINGLE_TREE; const int qp_luma = (single_tree ? lc->ep->qp_y : ff_vvc_get_qPy(fc, x_center, y_center)) + sps->qp_bd_offset; const int qp_chroma = av_clip(qp_luma, 0, MAX_QP + sps->qp_bd_offset); const int sh_chroma_qp_offset[] = { rsh->sh_cb_qp_offset, rsh->sh_cr_qp_offset, rsh->sh_joint_cbcr_qp_offset, }; int qp; for (int i = CB - 1; i < CR + sps->r->sps_joint_cbcr_enabled_flag; i++) { qp = sps->chroma_qp_table[i][qp_chroma]; qp = qp + pps->chroma_qp_offset[i] + sh_chroma_qp_offset[i] + lc->parse.chroma_qp_offset[i]; qp = av_clip(qp, -sps->qp_bd_offset, MAX_QP) + sps->qp_bd_offset; cu->qp[i + 1] = qp; } } static TransformUnit* alloc_tu(VVCFrameContext *fc, CodingUnit *cu) { TransformUnit *tu = ff_refstruct_pool_get(fc->tu_pool); if (!tu) return NULL; tu->next = NULL; if (cu->tus.tail) cu->tus.tail->next = tu; else cu->tus.head = tu; cu->tus.tail = tu; return tu; } static TransformUnit* add_tu(VVCFrameContext *fc, CodingUnit *cu, const int x0, const int y0, const int tu_width, const int tu_height) { TransformUnit *tu = alloc_tu(fc, cu); if (!tu) return NULL; tu->x0 = x0; tu->y0 = y0; tu->width = tu_width; tu->height = tu_height; tu->joint_cbcr_residual_flag = 0; memset(tu->coded_flag, 0, sizeof(tu->coded_flag)); tu->nb_tbs = 0; return tu; } static TransformBlock* add_tb(TransformUnit *tu, VVCLocalContext *lc, const int x0, const int y0, const int tb_width, const int tb_height, const int c_idx) { TransformBlock *tb; tb = &tu->tbs[tu->nb_tbs++]; tb->has_coeffs = 0; tb->x0 = x0; tb->y0 = y0; tb->tb_width = tb_width; tb->tb_height = tb_height; tb->log2_tb_width = av_log2(tb_width); tb->log2_tb_height = av_log2(tb_height); tb->max_scan_x = tb->max_scan_y = 0; tb->min_scan_x = tb->min_scan_y = 0; tb->c_idx = c_idx; tb->ts = 0; tb->coeffs = lc->coeffs; lc->coeffs += tb_width * tb_height; return tb; } static uint8_t tu_y_coded_flag_decode(VVCLocalContext *lc, const int is_sbt_not_coded, const int sub_tu_index, const int is_isp, const int is_chroma_coded) { uint8_t tu_y_coded_flag = 0; const VVCSPS *sps = lc->fc->ps.sps; CodingUnit *cu = lc->cu; if (!is_sbt_not_coded) { int has_y_coded_flag = sub_tu_index < cu->num_intra_subpartitions - 1 || !lc->parse.infer_tu_cbf_luma; if (!is_isp) { const int is_large = cu->cb_width > sps->max_tb_size_y || cu->cb_height > sps->max_tb_size_y; has_y_coded_flag = (cu->pred_mode == MODE_INTRA && !cu->act_enabled_flag) || is_chroma_coded || is_large; } tu_y_coded_flag = has_y_coded_flag ? ff_vvc_tu_y_coded_flag(lc) : 1; } if (is_isp) lc->parse.infer_tu_cbf_luma = lc->parse.infer_tu_cbf_luma && !tu_y_coded_flag; return tu_y_coded_flag; } static void chroma_qp_offset_decode(VVCLocalContext *lc, const int is_128, const int is_chroma_coded) { const VVCPPS *pps = lc->fc->ps.pps; const H266RawSliceHeader *rsh = lc->sc->sh.r; if ((is_128 || is_chroma_coded) && rsh->sh_cu_chroma_qp_offset_enabled_flag && !lc->parse.is_cu_chroma_qp_offset_coded) { const int cu_chroma_qp_offset_flag = ff_vvc_cu_chroma_qp_offset_flag(lc); if (cu_chroma_qp_offset_flag) { int cu_chroma_qp_offset_idx = 0; if (pps->r->pps_chroma_qp_offset_list_len_minus1 > 0) cu_chroma_qp_offset_idx = ff_vvc_cu_chroma_qp_offset_idx(lc); for (int i = CB - 1; i < JCBCR; i++) lc->parse.chroma_qp_offset[i] = pps->chroma_qp_offset_list[cu_chroma_qp_offset_idx][i]; } else { memset(lc->parse.chroma_qp_offset, 0, sizeof(lc->parse.chroma_qp_offset)); } lc->parse.is_cu_chroma_qp_offset_coded = 1; } } static int hls_transform_unit(VVCLocalContext *lc, int x0, int y0,int tu_width, int tu_height, int sub_tu_index, int ch_type) { VVCFrameContext *fc = lc->fc; const VVCSPS *sps = fc->ps.sps; const VVCPPS *pps = fc->ps.pps; CodingUnit *cu = lc->cu; TransformUnit *tu = add_tu(fc, cu, x0, y0, tu_width, tu_height); const int min_cb_width = pps->min_cb_width; const VVCTreeType tree_type = cu->tree_type; const int is_128 = cu->cb_width > 64 || cu->cb_height > 64; const int is_isp = cu->isp_split_type != ISP_NO_SPLIT; const int is_isp_last_tu = is_isp && (sub_tu_index == cu->num_intra_subpartitions - 1); const int is_sbt_not_coded = cu->sbt_flag && ((sub_tu_index == 0 && cu->sbt_pos_flag) || (sub_tu_index == 1 && !cu->sbt_pos_flag)); const int chroma_available = tree_type != DUAL_TREE_LUMA && sps->r->sps_chroma_format_idc && (!is_isp || is_isp_last_tu); int ret, xc, yc, wc, hc, is_chroma_coded; if (!tu) return AVERROR_INVALIDDATA; if (tree_type == SINGLE_TREE && is_isp_last_tu) { const int x_cu = x0 >> fc->ps.sps->min_cb_log2_size_y; const int y_cu = y0 >> fc->ps.sps->min_cb_log2_size_y; xc = SAMPLE_CTB(fc->tab.cb_pos_x[ch_type], x_cu, y_cu); yc = SAMPLE_CTB(fc->tab.cb_pos_y[ch_type], x_cu, y_cu); wc = SAMPLE_CTB(fc->tab.cb_width[ch_type], x_cu, y_cu); hc = SAMPLE_CTB(fc->tab.cb_height[ch_type], x_cu, y_cu); } else { xc = x0, yc = y0, wc = tu_width, hc = tu_height; } if (chroma_available && !is_sbt_not_coded) { tu->coded_flag[CB] = ff_vvc_tu_cb_coded_flag(lc); tu->coded_flag[CR] = ff_vvc_tu_cr_coded_flag(lc, tu->coded_flag[CB]); } is_chroma_coded = chroma_available && (tu->coded_flag[CB] || tu->coded_flag[CR]); if (tree_type != DUAL_TREE_CHROMA) { int has_qp_delta; tu->coded_flag[LUMA] = tu_y_coded_flag_decode(lc, is_sbt_not_coded, sub_tu_index, is_isp, is_chroma_coded); has_qp_delta = (is_128 || tu->coded_flag[LUMA] || is_chroma_coded) && pps->r->pps_cu_qp_delta_enabled_flag && !lc->parse.is_cu_qp_delta_coded; ret = set_qp_y(lc, x0, y0, has_qp_delta); if (ret < 0) return ret; add_tb(tu, lc, x0, y0, tu_width, tu_height, LUMA); } if (tree_type != DUAL_TREE_LUMA) { chroma_qp_offset_decode(lc, is_128, is_chroma_coded); if (chroma_available) { const int hs = sps->hshift[CHROMA]; const int vs = sps->vshift[CHROMA]; add_tb(tu, lc, xc, yc, wc >> hs, hc >> vs, CB); add_tb(tu, lc, xc, yc, wc >> hs, hc >> vs, CR); } } if (sps->r->sps_joint_cbcr_enabled_flag && ((cu->pred_mode == MODE_INTRA && (tu->coded_flag[CB] || tu->coded_flag[CR])) || (tu->coded_flag[CB] && tu->coded_flag[CR])) && chroma_available) { tu->joint_cbcr_residual_flag = ff_vvc_tu_joint_cbcr_residual_flag(lc, tu->coded_flag[1], tu->coded_flag[2]); } for (int i = 0; i < tu->nb_tbs; i++) { TransformBlock *tb = &tu->tbs[i]; const int is_chroma = tb->c_idx != LUMA; tb->has_coeffs = tu->coded_flag[tb->c_idx]; if (tb->has_coeffs && is_chroma) tb->has_coeffs = tb->c_idx == CB ? 1 : !(tu->coded_flag[CB] && tu->joint_cbcr_residual_flag); if (tb->has_coeffs) { tb->ts = cu->bdpcm_flag[tb->c_idx]; if (sps->r->sps_transform_skip_enabled_flag && !cu->bdpcm_flag[tb->c_idx] && tb->tb_width <= sps->max_ts_size && tb->tb_height <= sps->max_ts_size && !cu->sbt_flag && (is_chroma || !is_isp)) { tb->ts = ff_vvc_transform_skip_flag(lc, is_chroma); } ret = ff_vvc_residual_coding(lc, tb); if (ret < 0) return ret; set_tb_tab(fc->tab.tu_coded_flag[tb->c_idx], tu->coded_flag[tb->c_idx], fc, tb); } if (tb->c_idx != CR) set_tb_pos(fc, tb); if (tb->c_idx == CB) set_tb_tab(fc->tab.tu_joint_cbcr_residual_flag, tu->joint_cbcr_residual_flag, fc, tb); } return 0; } static int hls_transform_tree(VVCLocalContext *lc, int x0, int y0,int tu_width, int tu_height, int ch_type) { const CodingUnit *cu = lc->cu; const VVCSPS *sps = lc->fc->ps.sps; int ret; lc->parse.infer_tu_cbf_luma = 1; if (cu->isp_split_type == ISP_NO_SPLIT && !cu->sbt_flag) { if (tu_width > sps->max_tb_size_y || tu_height > sps->max_tb_size_y) { const int ver_split_first = tu_width > sps->max_tb_size_y && tu_width > tu_height; const int trafo_width = ver_split_first ? (tu_width / 2) : tu_width; const int trafo_height = !ver_split_first ? (tu_height / 2) : tu_height; #define TRANSFORM_TREE(x, y) do { \ ret = hls_transform_tree(lc, x, y, trafo_width, trafo_height, ch_type); \ if (ret < 0) \ return ret; \ } while (0) TRANSFORM_TREE(x0, y0); if (ver_split_first) TRANSFORM_TREE(x0 + trafo_width, y0); else TRANSFORM_TREE(x0, y0 + trafo_height); } else { ret = hls_transform_unit(lc, x0, y0, tu_width, tu_height, 0, ch_type); if (ret < 0) return ret; } } else if (cu->sbt_flag) { if (!cu->sbt_horizontal_flag) { #define TRANSFORM_UNIT(x, width, idx) do { \ ret = hls_transform_unit(lc, x, y0, width, tu_height, idx, ch_type); \ if (ret < 0) \ return ret; \ } while (0) const int trafo_width = tu_width * lc->parse.sbt_num_fourths_tb0 / 4; TRANSFORM_UNIT(x0, trafo_width, 0); TRANSFORM_UNIT(x0 + trafo_width, tu_width - trafo_width, 1); #undef TRANSFORM_UNIT } else { #define TRANSFORM_UNIT(y, height, idx) do { \ ret = hls_transform_unit(lc, x0, y, tu_width, height, idx, ch_type); \ if (ret < 0) \ return ret; \ } while (0) const int trafo_height = tu_height * lc->parse.sbt_num_fourths_tb0 / 4; TRANSFORM_UNIT(y0, trafo_height, 0); TRANSFORM_UNIT(y0 + trafo_height, tu_height - trafo_height, 1); #undef TRANSFORM_UNIT } } else if (cu->isp_split_type == ISP_HOR_SPLIT) { const int trafo_height = tu_height / cu->num_intra_subpartitions; for (int i = 0; i < cu->num_intra_subpartitions; i++) { ret = hls_transform_unit(lc, x0, y0 + trafo_height * i, tu_width, trafo_height, i, 0); if (ret < 0) return ret; } } else if (cu->isp_split_type == ISP_VER_SPLIT) { const int trafo_width = tu_width / cu->num_intra_subpartitions; for (int i = 0; i < cu->num_intra_subpartitions; i++) { ret = hls_transform_unit(lc, x0 + trafo_width * i , y0, trafo_width, tu_height, i, 0); if (ret < 0) return ret; } } return 0; } static int skipped_transform_tree(VVCLocalContext *lc, int x0, int y0,int tu_width, int tu_height) { VVCFrameContext *fc = lc->fc; const CodingUnit *cu = lc->cu; const VVCSPS *sps = fc->ps.sps; if (tu_width > sps->max_tb_size_y || tu_height > sps->max_tb_size_y) { const int ver_split_first = tu_width > sps->max_tb_size_y && tu_width > tu_height; const int trafo_width = ver_split_first ? (tu_width / 2) : tu_width; const int trafo_height = !ver_split_first ? (tu_height / 2) : tu_height; #define SKIPPED_TRANSFORM_TREE(x, y) do { \ int ret = skipped_transform_tree(lc, x, y, trafo_width, trafo_height); \ if (ret < 0) \ return ret; \ } while (0) SKIPPED_TRANSFORM_TREE(x0, y0); if (ver_split_first) SKIPPED_TRANSFORM_TREE(x0 + trafo_width, y0); else SKIPPED_TRANSFORM_TREE(x0, y0 + trafo_height); } else { TransformUnit *tu = add_tu(fc, lc->cu, x0, y0, tu_width, tu_height); const int has_chroma = sps->r->sps_chroma_format_idc && cu->tree_type != DUAL_TREE_LUMA; const int c_start = cu->tree_type == DUAL_TREE_CHROMA ? CB : LUMA; const int c_end = has_chroma ? VVC_MAX_SAMPLE_ARRAYS : CB; if (!tu) return AVERROR_INVALIDDATA; for (int i = c_start; i < c_end; i++) { TransformBlock *tb = add_tb(tu, lc, x0, y0, tu_width >> sps->hshift[i], tu_height >> sps->vshift[i], i); if (i != CR) set_tb_pos(fc, tb); } } return 0; } //6.4.1 Allowed quad split process //6.4.2 Allowed binary split process //6.4.3 Allowed ternary split process static void can_split(const VVCLocalContext *lc, int x0, int y0,int cb_width, int cb_height, int mtt_depth, int depth_offset, int part_idx, VVCSplitMode last_split_mode, VVCTreeType tree_type, VVCModeType mode_type, VVCAllowedSplit* split) { int min_qt_size, max_bt_size, max_tt_size, max_mtt_depth; const VVCFrameContext *fc = lc->fc; const VVCSH *sh = &lc->sc->sh; const VVCSPS *sps = fc->ps.sps; const VVCPPS *pps = fc->ps.pps; const int chroma = tree_type == DUAL_TREE_CHROMA; int min_cb_size_y = sps->min_cb_size_y; int *qt = &split->qt; int *btv = &split->btv; int *bth = &split->bth; int *ttv = &split->ttv; int *tth = &split->tth; *qt = *bth = *btv = *tth = *ttv = 1; if (mtt_depth) *qt = 0; min_qt_size = sh->min_qt_size[chroma]; if (cb_width <= min_qt_size) *qt = 0; if (chroma) { int chroma_area = (cb_width >> sps->hshift[1]) * (cb_height >> sps->vshift[1]); int chroma_width = cb_width >> sps->hshift[1]; if (chroma_width == 8) *ttv = 0; else if (chroma_width <= 4) { if (chroma_width == 4) *btv = 0; *qt = 0; } if (mode_type == MODE_TYPE_INTRA) *qt = *btv = *bth = *ttv = *tth = 0; if (chroma_area <= 32) { *ttv = *tth = 0; if (chroma_area <= 16) *btv = *bth = 0; } } max_bt_size = sh->max_bt_size[chroma]; max_tt_size = sh->max_tt_size[chroma]; max_mtt_depth = sh->max_mtt_depth[chroma] + depth_offset; if (mode_type == MODE_TYPE_INTER) { int area = cb_width * cb_height; if (area == 32) *btv = *bth = 0; else if (area == 64) *ttv = *tth = 0; } if (cb_width <= 2 * min_cb_size_y) { *ttv = 0; if (cb_width <= min_cb_size_y) *btv = 0; } if (cb_height <= 2 * min_cb_size_y) { *tth = 0; if (cb_height <= min_cb_size_y) *bth = 0; } if (cb_width > max_bt_size || cb_height > max_bt_size) *btv = *bth = 0; max_tt_size = FFMIN(64, max_tt_size); if (cb_width > max_tt_size || cb_height > max_tt_size) *ttv = *tth = 0; if (mtt_depth >= max_mtt_depth) *btv = *bth = *ttv = *tth = 0; if (x0 + cb_width > pps->width) { *ttv = *tth = 0; if (cb_height > 64) *btv = 0; if (y0 + cb_height <= pps->height) *bth = 0; else if (cb_width > min_qt_size) *btv = *bth = 0; } if (y0 + cb_height > pps->height) { *btv = *ttv = *tth = 0; if (cb_width > 64) *bth = 0; } if (mtt_depth > 0 && part_idx == 1) { if (last_split_mode == SPLIT_TT_VER) *btv = 0; else if (last_split_mode == SPLIT_TT_HOR) *bth = 0; } if (cb_width <= 64 && cb_height > 64) *btv = 0; if (cb_width > 64 && cb_height <= 64) *bth = 0; } static int get_num_intra_subpartitions(enum IspType isp_split_type, int cb_width, int cb_height) { if (isp_split_type == ISP_NO_SPLIT) return 1; if ((cb_width == 4 && cb_height == 8) || (cb_width == 8 && cb_height == 4)) return 2; return 4; } static int get_cclm_enabled(const VVCLocalContext *lc, const int x0, const int y0) { const VVCFrameContext *fc = lc->fc; const VVCSPS *sps = fc->ps.sps; int enabled = 0; if (!sps->r->sps_cclm_enabled_flag) return 0; if (!sps->r->sps_qtbtt_dual_tree_intra_flag || !IS_I(lc->sc->sh.r) || sps->ctb_log2_size_y < 6) return 1; else { const int x64 = x0 >> 6 << 6; const int y64 = y0 >> 6 << 6; const int y32 = y0 >> 5 << 5; const int x64_cu = x64 >> fc->ps.sps->min_cb_log2_size_y; const int y64_cu = y64 >> fc->ps.sps->min_cb_log2_size_y; const int y32_cu = y32 >> fc->ps.sps->min_cb_log2_size_y; const int min_cb_width = fc->ps.pps->min_cb_width; const int depth = SAMPLE_CTB(fc->tab.cqt_depth[1], x64_cu, y64_cu); const int min_depth = fc->ps.sps->ctb_log2_size_y - 6; const VVCSplitMode msm64 = (VVCSplitMode)TAB_MSM(fc, 0, x64, y64); const VVCSplitMode msm32 = (VVCSplitMode)TAB_MSM(fc, 1, x64, y32); enabled = SAMPLE_CTB(fc->tab.cb_width[1], x64_cu, y64_cu) == 64 && SAMPLE_CTB(fc->tab.cb_height[1], x64_cu, y64_cu) == 64; enabled |= depth == min_depth && msm64 == SPLIT_BT_HOR && SAMPLE_CTB(fc->tab.cb_width[1], x64_cu, y32_cu) == 64 && SAMPLE_CTB(fc->tab.cb_height[1], x64_cu, y32_cu) == 32; enabled |= depth > min_depth; enabled |= depth == min_depth && msm64 == SPLIT_BT_HOR && msm32 == SPLIT_BT_VER; if (enabled) { const int w = SAMPLE_CTB(fc->tab.cb_width[0], x64_cu, y64_cu); const int h = SAMPLE_CTB(fc->tab.cb_height[0], x64_cu, y64_cu); const int depth0 = SAMPLE_CTB(fc->tab.cqt_depth[0], x64_cu, y64_cu); if ((w == 64 && h == 64 && TAB_ISPMF(fc, x64, y64)) || ((w < 64 || h < 64) && depth0 == min_depth)) return 0; } } return enabled; } static int less(const void *a, const void *b) { return *(const int*)a - *(const int*)b; } //8.4.2 Derivation process for luma intra prediction mode static enum IntraPredMode luma_intra_pred_mode(VVCLocalContext* lc, const int intra_subpartitions_mode_flag) { VVCFrameContext *fc = lc->fc; CodingUnit *cu = lc->cu; const int x0 = cu->x0; const int y0 = cu->y0; enum IntraPredMode pred; int intra_luma_not_planar_flag = 1; int intra_luma_mpm_remainder = 0; int intra_luma_mpm_flag = 1; int intra_luma_mpm_idx = 0; if (!cu->intra_luma_ref_idx) intra_luma_mpm_flag = ff_vvc_intra_luma_mpm_flag(lc); if (intra_luma_mpm_flag) { if (!cu->intra_luma_ref_idx) intra_luma_not_planar_flag = ff_vvc_intra_luma_not_planar_flag(lc, intra_subpartitions_mode_flag); if (intra_luma_not_planar_flag) intra_luma_mpm_idx = ff_vvc_intra_luma_mpm_idx(lc); } else { intra_luma_mpm_remainder = ff_vvc_intra_luma_mpm_remainder(lc); } if (!intra_luma_not_planar_flag) { pred = INTRA_PLANAR; } else { const VVCSPS *sps = fc->ps.sps; const int x_a = (x0 - 1) >> sps->min_cb_log2_size_y; const int y_a = (y0 + cu->cb_height - 1) >> sps->min_cb_log2_size_y; const int x_b = (x0 + cu->cb_width - 1) >> sps->min_cb_log2_size_y; const int y_b = (y0 - 1) >> sps->min_cb_log2_size_y; int min_cb_width = fc->ps.pps->min_cb_width; int x0b = av_mod_uintp2(x0, sps->ctb_log2_size_y); int y0b = av_mod_uintp2(y0, sps->ctb_log2_size_y); const int available_l = lc->ctb_left_flag || x0b; const int available_u = lc->ctb_up_flag || y0b; int a, b, cand[5]; if (!available_l || (SAMPLE_CTB(fc->tab.cpm[0], x_a, y_a) != MODE_INTRA) || SAMPLE_CTB(fc->tab.imf, x_a, y_a)) { a = INTRA_PLANAR; } else { a = SAMPLE_CTB(fc->tab.ipm, x_a, y_a); } if (!available_u || (SAMPLE_CTB(fc->tab.cpm[0], x_b, y_b) != MODE_INTRA) || SAMPLE_CTB(fc->tab.imf, x_b, y_b) || !y0b) { b = INTRA_PLANAR; } else { b = SAMPLE_CTB(fc->tab.ipm, x_b, y_b); } if (a == b && a > INTRA_DC) { cand[0] = a; cand[1] = 2 + ((a + 61) % 64); cand[2] = 2 + ((a - 1) % 64); cand[3] = 2 + ((a + 60) % 64); cand[4] = 2 + (a % 64); } else { const int minab = FFMIN(a, b); const int maxab = FFMAX(a, b); if (a > INTRA_DC && b > INTRA_DC) { const int diff = maxab - minab; cand[0] = a; cand[1] = b; if (diff == 1) { cand[2] = 2 + ((minab + 61) % 64); cand[3] = 2 + ((maxab - 1) % 64); cand[4] = 2 + ((minab + 60) % 64); } else if (diff >= 62) { cand[2] = 2 + ((minab - 1) % 64); cand[3] = 2 + ((maxab + 61) % 64); cand[4] = 2 + (minab % 64); } else if (diff == 2) { cand[2] = 2 + ((minab - 1) % 64); cand[3] = 2 + ((minab + 61) % 64); cand[4] = 2 + ((maxab - 1) % 64); } else { cand[2] = 2 + ((minab + 61) % 64); cand[3] = 2 + ((minab - 1) % 64); cand[4] = 2 + ((maxab + 61) % 64); } } else if (a > INTRA_DC || b > INTRA_DC) { cand[0] = maxab; cand[1] = 2 + ((maxab + 61 ) % 64); cand[2] = 2 + ((maxab - 1) % 64); cand[3] = 2 + ((maxab + 60 ) % 64); cand[4] = 2 + (maxab % 64); } else { cand[0] = INTRA_DC; cand[1] = INTRA_VERT; cand[2] = INTRA_HORZ; cand[3] = INTRA_VERT - 4; cand[4] = INTRA_VERT + 4; } } if (intra_luma_mpm_flag) { pred = cand[intra_luma_mpm_idx]; } else { qsort(cand, FF_ARRAY_ELEMS(cand), sizeof(cand[0]), less); pred = intra_luma_mpm_remainder + 1; for (int i = 0; i < FF_ARRAY_ELEMS(cand); i++) { if (pred >= cand[i]) pred++; } } } return pred; } static int lfnst_idx_decode(VVCLocalContext *lc) { CodingUnit *cu = lc->cu; const VVCTreeType tree_type = cu->tree_type; const VVCSPS *sps = lc->fc->ps.sps; const int cb_width = cu->cb_width; const int cb_height = cu->cb_height; const TransformUnit *tu = cu->tus.head; int lfnst_width, lfnst_height, min_lfnst; int lfnst_idx = 0; memset(cu->apply_lfnst_flag, 0, sizeof(cu->apply_lfnst_flag)); if (!sps->r->sps_lfnst_enabled_flag || cu->pred_mode != MODE_INTRA || FFMAX(cb_width, cb_height) > sps->max_tb_size_y) return 0; while (tu) { for (int j = 0; j < tu->nb_tbs; j++) { const TransformBlock *tb = tu->tbs + j; if (tu->coded_flag[tb->c_idx] && tb->ts) return 0; } tu = tu->next; } if (tree_type == DUAL_TREE_CHROMA) { lfnst_width = cb_width >> sps->hshift[1]; lfnst_height = cb_height >> sps->vshift[1]; } else { const int vs = cu->isp_split_type == ISP_VER_SPLIT; const int hs = cu->isp_split_type == ISP_HOR_SPLIT; lfnst_width = vs ? cb_width / cu->num_intra_subpartitions : cb_width; lfnst_height = hs ? cb_height / cu->num_intra_subpartitions : cb_height; } min_lfnst = FFMIN(lfnst_width, lfnst_height); if (tree_type != DUAL_TREE_CHROMA && cu->intra_mip_flag && min_lfnst < 16) return 0; if (min_lfnst >= 4) { if ((cu->isp_split_type != ISP_NO_SPLIT || !lc->parse.lfnst_dc_only) && lc->parse.lfnst_zero_out_sig_coeff_flag) lfnst_idx = ff_vvc_lfnst_idx(lc, tree_type != SINGLE_TREE); } if (lfnst_idx) { cu->apply_lfnst_flag[LUMA] = tree_type != DUAL_TREE_CHROMA; cu->apply_lfnst_flag[CB] = cu->apply_lfnst_flag[CR] = tree_type == DUAL_TREE_CHROMA; } return lfnst_idx; } static MtsIdx mts_idx_decode(VVCLocalContext *lc) { const CodingUnit *cu = lc->cu; const VVCSPS *sps = lc->fc->ps.sps; const int cb_width = cu->cb_width; const int cb_height = cu->cb_height; const uint8_t transform_skip_flag = cu->tus.head->tbs[0].ts; //fix me int mts_idx = MTS_DCT2_DCT2; if (cu->tree_type != DUAL_TREE_CHROMA && !cu->lfnst_idx && !transform_skip_flag && FFMAX(cb_width, cb_height) <= 32 && cu->isp_split_type == ISP_NO_SPLIT && !cu->sbt_flag && lc->parse.mts_zero_out_sig_coeff_flag && !lc->parse.mts_dc_only) { if ((cu->pred_mode == MODE_INTER && sps->r->sps_explicit_mts_inter_enabled_flag) || (cu->pred_mode == MODE_INTRA && sps->r->sps_explicit_mts_intra_enabled_flag)) { mts_idx = ff_vvc_mts_idx(lc); } } return mts_idx; } static enum IntraPredMode derive_center_luma_intra_pred_mode(const VVCFrameContext *fc, const VVCSPS *sps, const VVCPPS *pps, const CodingUnit *cu) { const int x_center = (cu->x0 + cu->cb_width / 2) >> sps->min_cb_log2_size_y; const int y_center = (cu->y0 + cu->cb_height / 2) >> sps->min_cb_log2_size_y; const int min_cb_width = pps->min_cb_width; const int intra_mip_flag = SAMPLE_CTB(fc->tab.imf, x_center, y_center); const int cu_pred_mode = SAMPLE_CTB(fc->tab.cpm[0], x_center, y_center); const int intra_pred_mode_y = SAMPLE_CTB(fc->tab.ipm, x_center, y_center); if (intra_mip_flag) { if (cu->tree_type == SINGLE_TREE && sps->r->sps_chroma_format_idc == CHROMA_FORMAT_444) return INTRA_INVALID; return INTRA_PLANAR; } if (cu_pred_mode == MODE_IBC || cu_pred_mode == MODE_PLT) return INTRA_DC; return intra_pred_mode_y; } static void derive_chroma_intra_pred_mode(VVCLocalContext *lc, const int cclm_mode_flag, const int cclm_mode_idx, const int intra_chroma_pred_mode) { const VVCFrameContext *fc = lc->fc; CodingUnit *cu = lc->cu; const VVCSPS *sps = fc->ps.sps; const VVCPPS *pps = fc->ps.pps; const int x_cb = cu->x0 >> sps->min_cb_log2_size_y; const int y_cb = cu->y0 >> sps->min_cb_log2_size_y; const int min_cb_width = pps->min_cb_width; const int intra_mip_flag = SAMPLE_CTB(fc->tab.imf, x_cb, y_cb); enum IntraPredMode luma_intra_pred_mode = SAMPLE_CTB(fc->tab.ipm, x_cb, y_cb); if (cu->tree_type == SINGLE_TREE && sps->r->sps_chroma_format_idc == CHROMA_FORMAT_444 && intra_chroma_pred_mode == 4 && intra_mip_flag) { cu->mip_chroma_direct_flag = 1; cu->intra_pred_mode_c = luma_intra_pred_mode; return; } luma_intra_pred_mode = derive_center_luma_intra_pred_mode(fc, sps, pps, cu); if (cu->act_enabled_flag) { cu->intra_pred_mode_c = luma_intra_pred_mode; return; } if (cclm_mode_flag) { cu->intra_pred_mode_c = INTRA_LT_CCLM + cclm_mode_idx; } else if (intra_chroma_pred_mode == 4){ cu->intra_pred_mode_c = luma_intra_pred_mode; } else { const static IntraPredMode pred_mode_c[][4 + 1] = { {INTRA_VDIAG, INTRA_PLANAR, INTRA_PLANAR, INTRA_PLANAR, INTRA_PLANAR}, {INTRA_VERT, INTRA_VDIAG, INTRA_VERT, INTRA_VERT, INTRA_VERT}, {INTRA_HORZ, INTRA_HORZ, INTRA_VDIAG, INTRA_HORZ, INTRA_HORZ}, {INTRA_DC, INTRA_DC, INTRA_DC, INTRA_VDIAG, INTRA_DC}, }; const int modes[4] = {INTRA_PLANAR, INTRA_VERT, INTRA_HORZ, INTRA_DC}; int idx; // This workaround is necessary to have 4:4:4 video decode correctly // See VVC ticket https://jvet.hhi.fraunhofer.de/trac/vvc/ticket/1602 // and VTM source https://vcgit.hhi.fraunhofer.de/jvet/VVCSoftware_VTM/-/blob/master/source/Lib/CommonLib/UnitTools.cpp#L736 if (cu->tree_type == SINGLE_TREE && sps->r->sps_chroma_format_idc == CHROMA_FORMAT_444 && intra_mip_flag) { idx = 4; } else { for (idx = 0; idx < FF_ARRAY_ELEMS(modes); idx++) { if (modes[idx] == luma_intra_pred_mode) break; } } cu->intra_pred_mode_c = pred_mode_c[intra_chroma_pred_mode][idx]; } if (sps->r->sps_chroma_format_idc == CHROMA_FORMAT_422 && cu->intra_pred_mode_c <= INTRA_VDIAG) { const static int mode_map_422[INTRA_VDIAG + 1] = { 0, 1, 61, 62, 63, 64, 65, 66, 2, 3, 5, 6, 8, 10, 12, 13, 14, 16, 18, 20, 22, 23, 24, 26, 28, 30, 31, 33, 34, 35, 36, 37, 38, 39, 40, 41, 41, 42, 43, 43, 44, 44, 45, 45, 46, 47, 48, 48, 49, 49, 50, 51, 51, 52, 52, 53, 54, 55, 55, 56, 56, 57, 57, 58, 59, 59, 60, }; cu->intra_pred_mode_c = mode_map_422[cu->intra_pred_mode_c]; } } static void intra_luma_pred_modes(VVCLocalContext *lc) { VVCFrameContext *fc = lc->fc; const VVCSPS *sps = fc->ps.sps; const VVCPPS *pps = fc->ps.pps; CodingUnit *cu = lc->cu; const int log2_min_cb_size = sps->min_cb_log2_size_y; const int x0 = cu->x0; const int y0 = cu->y0; const int x_cb = x0 >> log2_min_cb_size; const int y_cb = y0 >> log2_min_cb_size; const int cb_width = cu->cb_width; const int cb_height = cu->cb_height; cu->intra_luma_ref_idx = 0; if (sps->r->sps_bdpcm_enabled_flag && cb_width <= sps->max_ts_size && cb_height <= sps->max_ts_size) cu->bdpcm_flag[LUMA] = ff_vvc_intra_bdpcm_luma_flag(lc); if (cu->bdpcm_flag[LUMA]) { cu->intra_pred_mode_y = ff_vvc_intra_bdpcm_luma_dir_flag(lc) ? INTRA_VERT : INTRA_HORZ; } else { if (sps->r->sps_mip_enabled_flag) cu->intra_mip_flag = ff_vvc_intra_mip_flag(lc, fc->tab.imf); if (cu->intra_mip_flag) { int intra_mip_transposed_flag = ff_vvc_intra_mip_transposed_flag(lc); int intra_mip_mode = ff_vvc_intra_mip_mode(lc); int x = y_cb * pps->min_cb_width + x_cb; for (int y = 0; y < (cb_height>>log2_min_cb_size); y++) { int width = cb_width>>log2_min_cb_size; memset(&fc->tab.imf[x], cu->intra_mip_flag, width); fc->tab.imtf[x] = intra_mip_transposed_flag; fc->tab.imm[x] = intra_mip_mode; x += pps->min_cb_width; } cu->intra_pred_mode_y = intra_mip_mode; } else { int intra_subpartitions_mode_flag = 0; if (sps->r->sps_mrl_enabled_flag && ((y0 % sps->ctb_size_y) > 0)) cu->intra_luma_ref_idx = ff_vvc_intra_luma_ref_idx(lc); if (sps->r->sps_isp_enabled_flag && !cu->intra_luma_ref_idx && (cb_width <= sps->max_tb_size_y && cb_height <= sps->max_tb_size_y) && (cb_width * cb_height > MIN_TU_SIZE * MIN_TU_SIZE) && !cu->act_enabled_flag) intra_subpartitions_mode_flag = ff_vvc_intra_subpartitions_mode_flag(lc); if (!(x0 & 63) && !(y0 & 63)) TAB_ISPMF(fc, x0, y0) = intra_subpartitions_mode_flag; cu->isp_split_type = ff_vvc_isp_split_type(lc, intra_subpartitions_mode_flag); cu->num_intra_subpartitions = get_num_intra_subpartitions(cu->isp_split_type, cb_width, cb_height); cu->intra_pred_mode_y = luma_intra_pred_mode(lc, intra_subpartitions_mode_flag); } } set_cb_tab(lc, fc->tab.ipm, cu->intra_pred_mode_y); } static void intra_chroma_pred_modes(VVCLocalContext *lc) { const VVCSPS *sps = lc->fc->ps.sps; CodingUnit *cu = lc->cu; const int hs = sps->hshift[CHROMA]; const int vs = sps->vshift[CHROMA]; cu->mip_chroma_direct_flag = 0; if (sps->r->sps_bdpcm_enabled_flag && (cu->cb_width >> hs) <= sps->max_ts_size && (cu->cb_height >> vs) <= sps->max_ts_size) { cu->bdpcm_flag[CB] = cu->bdpcm_flag[CR] = ff_vvc_intra_bdpcm_chroma_flag(lc); } if (cu->bdpcm_flag[CHROMA]) { cu->intra_pred_mode_c = ff_vvc_intra_bdpcm_chroma_dir_flag(lc) ? INTRA_VERT : INTRA_HORZ; } else { const int cclm_enabled = get_cclm_enabled(lc, cu->x0, cu->y0); int cclm_mode_flag = 0; int cclm_mode_idx = 0; int intra_chroma_pred_mode = 0; if (cclm_enabled) cclm_mode_flag = ff_vvc_cclm_mode_flag(lc); if (cclm_mode_flag) cclm_mode_idx = ff_vvc_cclm_mode_idx(lc); else intra_chroma_pred_mode = ff_vvc_intra_chroma_pred_mode(lc); derive_chroma_intra_pred_mode(lc, cclm_mode_flag, cclm_mode_idx, intra_chroma_pred_mode); } } static PredMode pred_mode_decode(VVCLocalContext *lc, const VVCTreeType tree_type, const VVCModeType mode_type) { const VVCFrameContext *fc = lc->fc; CodingUnit *cu = lc->cu; const VVCSPS *sps = fc->ps.sps; const H266RawSliceHeader *rsh = lc->sc->sh.r; const int ch_type = tree_type == DUAL_TREE_CHROMA ? 1 : 0; const int is_4x4 = cu->cb_width == 4 && cu->cb_height == 4; int pred_mode_flag; int pred_mode_ibc_flag; PredMode pred_mode; cu->skip_flag = 0; if (!IS_I(rsh) || sps->r->sps_ibc_enabled_flag) { const int is_128 = cu->cb_width == 128 || cu->cb_height == 128; if (tree_type != DUAL_TREE_CHROMA && ((!is_4x4 && mode_type != MODE_TYPE_INTRA) || (sps->r->sps_ibc_enabled_flag && !is_128))) { cu->skip_flag = ff_vvc_cu_skip_flag(lc, fc->tab.skip); } if (is_4x4 || mode_type == MODE_TYPE_INTRA || IS_I(rsh)) { pred_mode_flag = 1; } else if (mode_type == MODE_TYPE_INTER || cu->skip_flag) { pred_mode_flag = 0; } else { pred_mode_flag = ff_vvc_pred_mode_flag(lc, ch_type); } pred_mode = pred_mode_flag ? MODE_INTRA : MODE_INTER; if (((IS_I(rsh) && !cu->skip_flag) || (!IS_I(rsh) && (pred_mode != MODE_INTRA || ((is_4x4 || mode_type == MODE_TYPE_INTRA) && !cu->skip_flag)))) && !is_128 && mode_type != MODE_TYPE_INTER && sps->r->sps_ibc_enabled_flag && tree_type != DUAL_TREE_CHROMA) { pred_mode_ibc_flag = ff_vvc_pred_mode_ibc_flag(lc, ch_type); } else if (cu->skip_flag && (is_4x4 || mode_type == MODE_TYPE_INTRA)) { pred_mode_ibc_flag = 1; } else if (is_128 || mode_type == MODE_TYPE_INTER || tree_type == DUAL_TREE_CHROMA) { pred_mode_ibc_flag = 0; } else { pred_mode_ibc_flag = (IS_I(rsh)) ? sps->r->sps_ibc_enabled_flag : 0; } if (pred_mode_ibc_flag) pred_mode = MODE_IBC; } else { pred_mode_flag = is_4x4 || mode_type == MODE_TYPE_INTRA || mode_type != MODE_TYPE_INTER || IS_I(rsh); pred_mode = pred_mode_flag ? MODE_INTRA : MODE_INTER; } return pred_mode; } static void sbt_info(VVCLocalContext *lc, const VVCSPS *sps) { CodingUnit *cu = lc->cu; const int cb_width = cu->cb_width; const int cb_height = cu->cb_height; if (cu->pred_mode == MODE_INTER && sps->r->sps_sbt_enabled_flag && !cu->ciip_flag && cb_width <= sps->max_tb_size_y && cb_height <= sps->max_tb_size_y) { const int sbt_ver_h = cb_width >= 8; const int sbt_hor_h = cb_height >= 8; cu->sbt_flag = 0; if (sbt_ver_h || sbt_hor_h) cu->sbt_flag = ff_vvc_sbt_flag(lc); if (cu->sbt_flag) { const int sbt_ver_q = cb_width >= 16; const int sbt_hor_q = cb_height >= 16; int cu_sbt_quad_flag = 0; if ((sbt_ver_h || sbt_hor_h) && (sbt_ver_q || sbt_hor_q)) cu_sbt_quad_flag = ff_vvc_sbt_quad_flag(lc); if (cu_sbt_quad_flag) { cu->sbt_horizontal_flag = sbt_hor_q; if (sbt_ver_q && sbt_hor_q) cu->sbt_horizontal_flag = ff_vvc_sbt_horizontal_flag(lc); } else { cu->sbt_horizontal_flag = sbt_hor_h; if (sbt_ver_h && sbt_hor_h) cu->sbt_horizontal_flag = ff_vvc_sbt_horizontal_flag(lc); } cu->sbt_pos_flag = ff_vvc_sbt_pos_flag(lc); { const int sbt_min = cu_sbt_quad_flag ? 1 : 2; lc->parse.sbt_num_fourths_tb0 = cu->sbt_pos_flag ? (4 - sbt_min) : sbt_min; } } } } static int skipped_transform_tree_unit(VVCLocalContext *lc) { const H266RawSPS *rsps = lc->fc->ps.sps->r; const CodingUnit *cu = lc->cu; int ret; if (cu->tree_type != DUAL_TREE_CHROMA) set_qp_y(lc, cu->x0, cu->y0, 0); if (rsps->sps_chroma_format_idc && cu->tree_type != DUAL_TREE_LUMA) set_qp_c(lc); ret = skipped_transform_tree(lc, cu->x0, cu->y0, cu->cb_width, cu->cb_height); if (ret < 0) return ret; return 0; } static void set_cb_pos(const VVCFrameContext *fc, const CodingUnit *cu) { const VVCSPS *sps = fc->ps.sps; const VVCPPS *pps = fc->ps.pps; const int log2_min_cb_size = sps->min_cb_log2_size_y; const int x_cb = cu->x0 >> log2_min_cb_size; const int y_cb = cu->y0 >> log2_min_cb_size; const int ch_type = cu->ch_type; int x, y; x = y_cb * pps->min_cb_width + x_cb; for (y = 0; y < (cu->cb_height >> log2_min_cb_size); y++) { const int width = cu->cb_width >> log2_min_cb_size; for (int i = 0; i < width; i++) { fc->tab.cb_pos_x[ch_type][x + i] = cu->x0; fc->tab.cb_pos_y[ch_type][x + i] = cu->y0; } memset(&fc->tab.cb_width[ch_type][x], cu->cb_width, width); memset(&fc->tab.cb_height[ch_type][x], cu->cb_height, width); memset(&fc->tab.cqt_depth[ch_type][x], cu->cqt_depth, width); x += pps->min_cb_width; } } static CodingUnit* alloc_cu(VVCLocalContext *lc, const int x0, const int y0) { VVCFrameContext *fc = lc->fc; const VVCSPS *sps = fc->ps.sps; const VVCPPS *pps = fc->ps.pps; const int rx = x0 >> sps->ctb_log2_size_y; const int ry = y0 >> sps->ctb_log2_size_y; CTU *ctu = fc->tab.ctus + ry * pps->ctb_width + rx; CodingUnit *cu = ff_refstruct_pool_get(fc->cu_pool); if (!cu) return NULL; cu->next = NULL; if (lc->cu) lc->cu->next = cu; else ctu->cus = cu; lc->cu = cu; return cu; } static CodingUnit* add_cu(VVCLocalContext *lc, const int x0, const int y0, const int cb_width, const int cb_height, const int cqt_depth, const VVCTreeType tree_type) { VVCFrameContext *fc = lc->fc; const int ch_type = tree_type == DUAL_TREE_CHROMA ? 1 : 0; CodingUnit *cu = alloc_cu(lc, x0, y0); if (!cu) return NULL; memset(&cu->pu, 0, sizeof(cu->pu)); lc->parse.prev_tu_cbf_y = 0; cu->sbt_flag = 0; cu->act_enabled_flag = 0; cu->tree_type = tree_type; cu->x0 = x0; cu->y0 = y0; cu->cb_width = cb_width; cu->cb_height = cb_height; cu->ch_type = ch_type; cu->cqt_depth = cqt_depth; cu->tus.head = cu->tus.tail = NULL; cu->bdpcm_flag[LUMA] = cu->bdpcm_flag[CB] = cu->bdpcm_flag[CR] = 0; cu->isp_split_type = ISP_NO_SPLIT; cu->intra_mip_flag = 0; cu->ciip_flag = 0; cu->coded_flag = 1; cu->num_intra_subpartitions = 1; cu->pu.dmvr_flag = 0; set_cb_pos(fc, cu); return cu; } static void set_cu_tabs(const VVCLocalContext *lc, const CodingUnit *cu) { const VVCFrameContext *fc = lc->fc; const TransformUnit *tu = cu->tus.head; if (cu->tree_type != DUAL_TREE_CHROMA) { set_cb_tab(lc, fc->tab.cpm[LUMA], cu->pred_mode); set_cb_tab(lc, fc->tab.skip, cu->skip_flag); } if (fc->ps.sps->r->sps_chroma_format_idc && cu->tree_type != DUAL_TREE_LUMA) set_cb_tab(lc, fc->tab.cpm[CHROMA], cu->pred_mode); while (tu) { for (int j = 0; j < tu->nb_tbs; j++) { const TransformBlock *tb = tu->tbs + j; if (tb->c_idx != LUMA) set_qp_c_tab(lc, tu, tb); if (tb->c_idx != CR && cu->bdpcm_flag[tb->c_idx]) set_tb_tab(fc->tab.pcmf[tb->c_idx], 1, fc, tb); } tu = tu->next; } } //8.5.2.7 Derivation process for merge motion vector difference static void derive_mmvd(const VVCLocalContext *lc, MvField *mvf, const Mv *mmvd_offset) { const SliceContext *sc = lc->sc; Mv mmvd[2]; if (mvf->pred_flag == PF_BI) { const RefPicList *rpl = sc->rpl; const int poc = lc->fc->ps.ph.poc; const int diff[] = { poc - rpl[L0].refs[mvf->ref_idx[L0]].poc, poc - rpl[L1].refs[mvf->ref_idx[L1]].poc }; const int sign = FFSIGN(diff[0]) != FFSIGN(diff[1]); if (diff[0] == diff[1]) { mmvd[1] = mmvd[0] = *mmvd_offset; } else { const int i = FFABS(diff[0]) < FFABS(diff[1]); const int o = !i; mmvd[i] = *mmvd_offset; if (!rpl[L0].refs[mvf->ref_idx[L0]].is_lt && !rpl[L1].refs[mvf->ref_idx[L1]].is_lt) { ff_vvc_mv_scale(&mmvd[o], mmvd_offset, diff[i], diff[o]); } else { mmvd[o].x = sign ? -mmvd[i].x : mmvd[i].x; mmvd[o].y = sign ? -mmvd[i].y : mmvd[i].y; } } mvf->mv[0].x += mmvd[0].x; mvf->mv[0].y += mmvd[0].y; mvf->mv[1].x += mmvd[1].x; mvf->mv[1].y += mmvd[1].y; } else { const int idx = mvf->pred_flag - PF_L0; mvf->mv[idx].x += mmvd_offset->x; mvf->mv[idx].y += mmvd_offset->y; } } static void mvf_to_mi(const MvField *mvf, MotionInfo *mi) { mi->pred_flag = mvf->pred_flag; mi->bcw_idx = mvf->bcw_idx; mi->hpel_if_idx = mvf->hpel_if_idx; for (int i = 0; i < 2; i++) { const PredFlag mask = i + 1; if (mvf->pred_flag & mask) { mi->mv[i][0] = mvf->mv[i]; mi->ref_idx[i] = mvf->ref_idx[i]; } } } static void mv_merge_refine_pred_flag(MvField *mvf, const int width, const int height) { if (mvf->pred_flag == PF_BI && (width + height) == 12) { mvf->pred_flag = PF_L0; mvf->bcw_idx = 0; } } // subblock-based inter prediction data static void merge_data_subblock(VVCLocalContext *lc) { const VVCFrameContext *fc = lc->fc; const VVCPH *ph = &fc->ps.ph; CodingUnit* cu = lc->cu; PredictionUnit *pu = &cu->pu; int merge_subblock_idx = 0; set_cb_tab(lc, fc->tab.msf, pu->merge_subblock_flag); if (ph->max_num_subblock_merge_cand > 1) { merge_subblock_idx = ff_vvc_merge_subblock_idx(lc, ph->max_num_subblock_merge_cand); } ff_vvc_sb_mv_merge_mode(lc, merge_subblock_idx, pu); } static void merge_data_regular(VVCLocalContext *lc) { const VVCFrameContext *fc = lc->fc; const VVCSPS *sps = fc->ps.sps; const VVCPH *ph = &fc->ps.ph; const CodingUnit* cu = lc->cu; PredictionUnit *pu = &lc->cu->pu; int merge_idx = 0; Mv mmvd_offset; MvField mvf; if (sps->r->sps_mmvd_enabled_flag) pu->mmvd_merge_flag = ff_vvc_mmvd_merge_flag(lc); if (pu->mmvd_merge_flag) { int mmvd_cand_flag = 0; if (sps->max_num_merge_cand > 1) mmvd_cand_flag = ff_vvc_mmvd_cand_flag(lc); ff_vvc_mmvd_offset_coding(lc, &mmvd_offset, ph->r->ph_mmvd_fullpel_only_flag); merge_idx = mmvd_cand_flag; } else if (sps->max_num_merge_cand > 1) { merge_idx = ff_vvc_merge_idx(lc); } ff_vvc_luma_mv_merge_mode(lc, merge_idx, 0, &mvf); if (pu->mmvd_merge_flag) derive_mmvd(lc, &mvf, &mmvd_offset); mv_merge_refine_pred_flag(&mvf, cu->cb_width, cu->cb_height); ff_vvc_store_mvf(lc, &mvf); mvf_to_mi(&mvf, &pu->mi); } static int ciip_flag_decode(VVCLocalContext *lc, const int ciip_avaiable, const int gpm_avaiable, const int is_128) { const VVCFrameContext *fc = lc->fc; const VVCSPS *sps = fc->ps.sps; const CodingUnit *cu = lc->cu; if (ciip_avaiable && gpm_avaiable) return ff_vvc_ciip_flag(lc); return sps->r->sps_ciip_enabled_flag && !cu->skip_flag && !is_128 && (cu->cb_width * cu->cb_height >= 64); } static void merge_data_gpm(VVCLocalContext *lc) { const VVCFrameContext *fc = lc->fc; const VVCSPS *sps = fc->ps.sps; PredictionUnit *pu = &lc->cu->pu; int merge_gpm_idx[2]; pu->merge_gpm_flag = 1; pu->gpm_partition_idx = ff_vvc_merge_gpm_partition_idx(lc); merge_gpm_idx[0] = ff_vvc_merge_gpm_idx(lc, 0); merge_gpm_idx[1] = 0; if (sps->max_num_gpm_merge_cand > 2) merge_gpm_idx[1] = ff_vvc_merge_gpm_idx(lc, 1); ff_vvc_luma_mv_merge_gpm(lc, merge_gpm_idx, pu->gpm_mv); ff_vvc_store_gpm_mvf(lc, pu); } static void merge_data_ciip(VVCLocalContext *lc) { const VVCFrameContext* fc = lc->fc; const VVCSPS* sps = fc->ps.sps; CodingUnit *cu = lc->cu; MotionInfo *mi = &cu->pu.mi; int merge_idx = 0; MvField mvf; if (sps->max_num_merge_cand > 1) merge_idx = ff_vvc_merge_idx(lc); ff_vvc_luma_mv_merge_mode(lc, merge_idx, 1, &mvf); mv_merge_refine_pred_flag(&mvf, cu->cb_width, cu->cb_height); ff_vvc_store_mvf(lc, &mvf); mvf_to_mi(&mvf, mi); cu->intra_pred_mode_y = cu->intra_pred_mode_c = INTRA_PLANAR; cu->intra_luma_ref_idx = 0; cu->intra_mip_flag = 0; } // block-based inter prediction data static void merge_data_block(VVCLocalContext *lc) { const VVCFrameContext* fc = lc->fc; const VVCSPS *sps = fc->ps.sps; const H266RawSliceHeader *rsh = lc->sc->sh.r; CodingUnit *cu = lc->cu; const int cb_width = cu->cb_width; const int cb_height = cu->cb_height; const int is_128 = cb_width == 128 || cb_height == 128; const int ciip_avaiable = sps->r->sps_ciip_enabled_flag && !cu->skip_flag && (cb_width * cb_height >= 64); const int gpm_avaiable = sps->r->sps_gpm_enabled_flag && IS_B(rsh) && (cb_width >= 8) && (cb_height >=8) && (cb_width < 8 * cb_height) && (cb_height < 8 *cb_width); int regular_merge_flag = 1; if (!is_128 && (ciip_avaiable || gpm_avaiable)) regular_merge_flag = ff_vvc_regular_merge_flag(lc, cu->skip_flag); if (regular_merge_flag) { merge_data_regular(lc); } else { cu->ciip_flag = ciip_flag_decode(lc, ciip_avaiable, gpm_avaiable, is_128); if (cu->ciip_flag) merge_data_ciip(lc); else merge_data_gpm(lc); } } static void merge_data_ibc(VVCLocalContext *lc) { const VVCFrameContext* fc = lc->fc; const VVCSPS* sps = fc->ps.sps; MotionInfo *mi = &lc->cu->pu.mi; int merge_idx = 0; mi->pred_flag = PF_IBC; if (sps->max_num_ibc_merge_cand > 1) merge_idx = ff_vvc_merge_idx(lc); ff_vvc_luma_mv_merge_ibc(lc, merge_idx, &mi->mv[L0][0]); ff_vvc_store_mv(lc, mi); } static int hls_merge_data(VVCLocalContext *lc) { const VVCFrameContext *fc = lc->fc; const VVCPH *ph = &fc->ps.ph; const CodingUnit *cu = lc->cu; PredictionUnit *pu = &lc->cu->pu; pu->merge_gpm_flag = 0; pu->mi.num_sb_x = pu->mi.num_sb_y = 1; if (cu->pred_mode == MODE_IBC) { merge_data_ibc(lc); } else { if (ph->max_num_subblock_merge_cand > 0 && cu->cb_width >= 8 && cu->cb_height >= 8) pu->merge_subblock_flag = ff_vvc_merge_subblock_flag(lc); if (pu->merge_subblock_flag) merge_data_subblock(lc); else merge_data_block(lc); } return 0; } static void hls_mvd_coding(VVCLocalContext *lc, Mv* mvd) { int16_t mv[2]; for (int i = 0; i < 2; i++) { mv[i] = ff_vvc_abs_mvd_greater0_flag(lc); } for (int i = 0; i < 2; i++) { if (mv[i]) mv[i] += ff_vvc_abs_mvd_greater1_flag(lc); } for (int i = 0; i < 2; i++) { if (mv[i] > 0) { if (mv[i] == 2) mv[i] += ff_vvc_abs_mvd_minus2(lc); mv[i] = (1 - 2 * ff_vvc_mvd_sign_flag(lc)) * mv[i]; } } mvd->x = mv[0]; mvd->y = mv[1]; } static int bcw_idx_decode(VVCLocalContext *lc, const MotionInfo *mi, const int cb_width, const int cb_height) { const VVCFrameContext *fc = lc->fc; const VVCSPS *sps = fc->ps.sps; const VVCPPS *pps = fc->ps.pps; const VVCPH *ph = &fc->ps.ph; const VVCSH *sh = &lc->sc->sh; const PredWeightTable *w = pps->r->pps_wp_info_in_ph_flag ? &ph->pwt : &sh->pwt; int bcw_idx = 0; if (sps->r->sps_bcw_enabled_flag && mi->pred_flag == PF_BI && !w->weight_flag[L0][LUMA][mi->ref_idx[0]] && !w->weight_flag[L1][LUMA][mi->ref_idx[1]] && !w->weight_flag[L0][CHROMA][mi->ref_idx[0]] && !w->weight_flag[L1][CHROMA][mi->ref_idx[1]] && cb_width * cb_height >= 256) { bcw_idx = ff_vvc_bcw_idx(lc, ff_vvc_no_backward_pred_flag(lc)); } return bcw_idx; } static int8_t ref_idx_decode(VVCLocalContext *lc, const VVCSH *sh, const int sym_mvd_flag, const int lx) { const H266RawSliceHeader *rsh = sh->r; int ref_idx = 0; if (rsh->num_ref_idx_active[lx] > 1 && !sym_mvd_flag) ref_idx = ff_vvc_ref_idx_lx(lc, rsh->num_ref_idx_active[lx]); else if (sym_mvd_flag) ref_idx = sh->ref_idx_sym[lx]; return ref_idx; } static int mvds_decode(VVCLocalContext *lc, Mv mvds[2][MAX_CONTROL_POINTS], const int num_cp_mv, const int lx) { const VVCFrameContext *fc = lc->fc; const VVCPH *ph = &fc->ps.ph; const PredictionUnit *pu = &lc->cu->pu; const MotionInfo *mi = &pu->mi; int has_no_zero_mvd = 0; if (lx == L1 && ph->r->ph_mvd_l1_zero_flag && mi->pred_flag == PF_BI) { for (int j = 0; j < num_cp_mv; j++) AV_ZERO64(&mvds[lx][j]); } else { Mv *mvd0 = &mvds[lx][0]; if (lx == L1 && pu->sym_mvd_flag) { mvd0->x = -mvds[L0][0].x; mvd0->y = -mvds[L0][0].y; } else { hls_mvd_coding(lc, mvd0); } has_no_zero_mvd |= (mvd0->x || mvd0->y); for (int j = 1; j < num_cp_mv; j++) { Mv *mvd = &mvds[lx][j]; hls_mvd_coding(lc, mvd); mvd->x += mvd0->x; mvd->y += mvd0->y; has_no_zero_mvd |= (mvd->x || mvd->y); } } return has_no_zero_mvd; } static void mvp_add_difference(MotionInfo *mi, const int num_cp_mv, const Mv mvds[2][MAX_CONTROL_POINTS], const int amvr_shift) { for (int i = 0; i < 2; i++) { const PredFlag mask = i + PF_L0; if (mi->pred_flag & mask) { for (int j = 0; j < num_cp_mv; j++) { const Mv *mvd = &mvds[i][j]; mi->mv[i][j].x += mvd->x * (1 << amvr_shift); mi->mv[i][j].y += mvd->y * (1 << amvr_shift); } } } } static int mvp_data_ibc(VVCLocalContext *lc) { const VVCFrameContext *fc = lc->fc; const CodingUnit *cu = lc->cu; const PredictionUnit *pu = &lc->cu->pu; const VVCSPS *sps = fc->ps.sps; MotionInfo *mi = &lc->cu->pu.mi; int mvp_l0_flag = 0; int amvr_shift = 4; Mv *mv = &mi->mv[L0][0]; mi->pred_flag = PF_IBC; mi->num_sb_x = 1; mi->num_sb_y = 1; hls_mvd_coding(lc, mv); if (sps->max_num_ibc_merge_cand > 1) mvp_l0_flag = ff_vvc_mvp_lx_flag(lc); if (sps->r->sps_amvr_enabled_flag && (mv->x || mv->y)) amvr_shift = ff_vvc_amvr_shift(lc, pu->inter_affine_flag, cu->pred_mode, 1); ff_vvc_mvp_ibc(lc, mvp_l0_flag, amvr_shift, mv); ff_vvc_store_mv(lc, mi); return 0; } static int mvp_data(VVCLocalContext *lc) { const VVCFrameContext *fc = lc->fc; const CodingUnit *cu = lc->cu; PredictionUnit *pu = &lc->cu->pu; const VVCSPS *sps = fc->ps.sps; const VVCPH *ph = &fc->ps.ph; const VVCSH *sh = &lc->sc->sh; const H266RawSliceHeader *rsh = sh->r; MotionInfo *mi = &pu->mi; const int cb_width = cu->cb_width; const int cb_height = cu->cb_height; int mvp_lx_flag[2] = {0}; int cu_affine_type_flag = 0; int num_cp_mv; int amvr_enabled, has_no_zero_mvd = 0, amvr_shift; Mv mvds[2][MAX_CONTROL_POINTS]; mi->pred_flag = ff_vvc_pred_flag(lc, IS_B(rsh)); if (sps->r->sps_affine_enabled_flag && cb_width >= 16 && cb_height >= 16) { pu->inter_affine_flag = ff_vvc_inter_affine_flag(lc); set_cb_tab(lc, fc->tab.iaf, pu->inter_affine_flag); if (sps->r->sps_6param_affine_enabled_flag && pu->inter_affine_flag) cu_affine_type_flag = ff_vvc_cu_affine_type_flag(lc); } mi->motion_model_idc = pu->inter_affine_flag + cu_affine_type_flag; num_cp_mv = mi->motion_model_idc + 1; if (sps->r->sps_smvd_enabled_flag && !ph->r->ph_mvd_l1_zero_flag && mi->pred_flag == PF_BI && !pu->inter_affine_flag && sh->ref_idx_sym[0] > -1 && sh->ref_idx_sym[1] > -1) pu->sym_mvd_flag = ff_vvc_sym_mvd_flag(lc); for (int i = L0; i <= L1; i++) { const PredFlag pred_flag = PF_L0 + !i; if (mi->pred_flag != pred_flag) { mi->ref_idx[i] = ref_idx_decode(lc, sh, pu->sym_mvd_flag, i); has_no_zero_mvd |= mvds_decode(lc, mvds, num_cp_mv, i); mvp_lx_flag[i] = ff_vvc_mvp_lx_flag(lc); } } amvr_enabled = mi->motion_model_idc == MOTION_TRANSLATION ? sps->r->sps_amvr_enabled_flag : sps->r->sps_affine_amvr_enabled_flag; amvr_enabled &= has_no_zero_mvd; amvr_shift = ff_vvc_amvr_shift(lc, pu->inter_affine_flag, cu->pred_mode, amvr_enabled); mi->hpel_if_idx = amvr_shift == 3; mi->bcw_idx = bcw_idx_decode(lc, mi, cb_width, cb_height); if (mi->motion_model_idc) ff_vvc_affine_mvp(lc, mvp_lx_flag, amvr_shift, mi); else ff_vvc_mvp(lc, mvp_lx_flag, amvr_shift, mi); mvp_add_difference(mi, num_cp_mv, mvds, amvr_shift); if (mi->motion_model_idc) ff_vvc_store_sb_mvs(lc, pu); else ff_vvc_store_mv(lc, &pu->mi); return 0; } // derive bdofFlag from 8.5.6 Decoding process for inter blocks // derive dmvr from 8.5.1 General decoding process for coding units coded in inter prediction mode static void derive_dmvr_bdof_flag(const VVCLocalContext *lc, PredictionUnit *pu) { const VVCFrameContext *fc = lc->fc; const VVCPPS *pps = fc->ps.pps; const VVCPH *ph = &fc->ps.ph; const VVCSH *sh = &lc->sc->sh; const int poc = ph->poc; const MotionInfo *mi = &pu->mi; const int8_t *ref_idx = mi->ref_idx; const VVCRefPic *rp0 = &lc->sc->rpl[L0].refs[ref_idx[L0]]; const VVCRefPic *rp1 = &lc->sc->rpl[L1].refs[ref_idx[L1]]; const CodingUnit *cu = lc->cu; const PredWeightTable *w = pps->r->pps_wp_info_in_ph_flag ? &fc->ps.ph.pwt : &sh->pwt; pu->bdof_flag = 0; if (mi->pred_flag == PF_BI && (poc - rp0->poc == rp1->poc - poc) && !rp0->is_lt && !rp1->is_lt && !cu->ciip_flag && !mi->bcw_idx && !w->weight_flag[L0][LUMA][ref_idx[L0]] && !w->weight_flag[L1][LUMA][ref_idx[L1]] && !w->weight_flag[L0][CHROMA][ref_idx[L0]] && !w->weight_flag[L1][CHROMA][ref_idx[L1]] && cu->cb_width >= 8 && cu->cb_height >= 8 && (cu->cb_width * cu->cb_height >= 128) && !rp0->is_scaled && !rp1->is_scaled) { if (!ph->r->ph_bdof_disabled_flag && mi->motion_model_idc == MOTION_TRANSLATION && !pu->merge_subblock_flag && !pu->sym_mvd_flag) pu->bdof_flag = 1; if (!ph->r->ph_dmvr_disabled_flag && pu->general_merge_flag && !pu->mmvd_merge_flag) pu->dmvr_flag = 1; } } // part of 8.5.1 General decoding process for coding units coded in inter prediction mode static void refine_regular_subblock(const VVCLocalContext *lc) { const CodingUnit *cu = lc->cu; PredictionUnit *pu = &lc->cu->pu; derive_dmvr_bdof_flag(lc, pu); if (pu->dmvr_flag || pu->bdof_flag) { pu->mi.num_sb_x = (cu->cb_width > 16) ? (cu->cb_width >> 4) : 1; pu->mi.num_sb_y = (cu->cb_height > 16) ? (cu->cb_height >> 4) : 1; } } static void fill_dmvr_info(const VVCLocalContext *lc) { const VVCFrameContext *fc = lc->fc; const CodingUnit *cu = lc->cu; if (cu->pred_mode == MODE_IBC) { ff_vvc_set_intra_mvf(lc, 1); } else { const VVCPPS *pps = fc->ps.pps; const int w = cu->cb_width >> MIN_PU_LOG2; for (int y = cu->y0 >> MIN_PU_LOG2; y < (cu->y0 + cu->cb_height) >> MIN_PU_LOG2; y++) { const int idx = pps->min_pu_width * y + (cu->x0 >> MIN_PU_LOG2); const MvField *mvf = fc->tab.mvf + idx; MvField *dmvr_mvf = fc->ref->tab_dmvr_mvf + idx; memcpy(dmvr_mvf, mvf, sizeof(MvField) * w); } } } static int inter_data(VVCLocalContext *lc) { const CodingUnit *cu = lc->cu; PredictionUnit *pu = &lc->cu->pu; const MotionInfo *mi = &pu->mi; int ret = 0; pu->general_merge_flag = 1; if (!cu->skip_flag) pu->general_merge_flag = ff_vvc_general_merge_flag(lc); if (pu->general_merge_flag) { hls_merge_data(lc); } else if (cu->pred_mode == MODE_IBC){ ret = mvp_data_ibc(lc); } else { ret = mvp_data(lc); } if (cu->pred_mode == MODE_IBC) { ff_vvc_update_hmvp(lc, mi); } else if (!pu->merge_gpm_flag && !pu->inter_affine_flag && !pu->merge_subblock_flag) { refine_regular_subblock(lc); ff_vvc_update_hmvp(lc, mi); } if (!pu->dmvr_flag) fill_dmvr_info(lc); return ret; } static int hls_coding_unit(VVCLocalContext *lc, int x0, int y0, int cb_width, int cb_height, int cqt_depth, const VVCTreeType tree_type, VVCModeType mode_type) { const VVCFrameContext *fc = lc->fc; const VVCSPS *sps = fc->ps.sps; const H266RawSliceHeader *rsh = lc->sc->sh.r; const int hs = sps->hshift[CHROMA]; const int vs = sps->vshift[CHROMA]; const int is_128 = cb_width > 64 || cb_height > 64; int pred_mode_plt_flag = 0; int ret; CodingUnit *cu = add_cu(lc, x0, y0, cb_width, cb_height, cqt_depth, tree_type); if (!cu) return AVERROR(ENOMEM); ff_vvc_set_neighbour_available(lc, cu->x0, cu->y0, cu->cb_width, cu->cb_height); if (IS_I(rsh) && is_128) mode_type = MODE_TYPE_INTRA; cu->pred_mode = pred_mode_decode(lc, tree_type, mode_type); if (cu->pred_mode == MODE_INTRA && sps->r->sps_palette_enabled_flag && !is_128 && !cu->skip_flag && mode_type != MODE_TYPE_INTER && ((cb_width * cb_height) > (tree_type != DUAL_TREE_CHROMA ? 16 : (16 << hs << vs))) && (mode_type != MODE_TYPE_INTRA || tree_type != DUAL_TREE_CHROMA)) { pred_mode_plt_flag = ff_vvc_pred_mode_plt_flag(lc); if (pred_mode_plt_flag) { avpriv_report_missing_feature(fc->log_ctx, "Palette"); return AVERROR_PATCHWELCOME; } } if (cu->pred_mode == MODE_INTRA && sps->r->sps_act_enabled_flag && tree_type == SINGLE_TREE) { avpriv_report_missing_feature(fc->log_ctx, "Adaptive Color Transform"); return AVERROR_PATCHWELCOME; } if (cu->pred_mode == MODE_INTRA || cu->pred_mode == MODE_PLT) { if (tree_type == SINGLE_TREE || tree_type == DUAL_TREE_LUMA) { if (pred_mode_plt_flag) { avpriv_report_missing_feature(fc->log_ctx, "Palette"); return AVERROR_PATCHWELCOME; } else { intra_luma_pred_modes(lc); } ff_vvc_set_intra_mvf(lc, 0); } if ((tree_type == SINGLE_TREE || tree_type == DUAL_TREE_CHROMA) && sps->r->sps_chroma_format_idc) { if (pred_mode_plt_flag && tree_type == DUAL_TREE_CHROMA) { avpriv_report_missing_feature(fc->log_ctx, "Palette"); return AVERROR_PATCHWELCOME; } else if (!pred_mode_plt_flag) { if (!cu->act_enabled_flag) intra_chroma_pred_modes(lc); } } } else if (tree_type != DUAL_TREE_CHROMA) { /* MODE_INTER or MODE_IBC */ if ((ret = inter_data(lc)) < 0) return ret; } if (cu->pred_mode != MODE_INTRA && !pred_mode_plt_flag && !lc->cu->pu.general_merge_flag) cu->coded_flag = ff_vvc_cu_coded_flag(lc); else cu->coded_flag = !(cu->skip_flag || pred_mode_plt_flag); if (cu->coded_flag) { sbt_info(lc, sps); if (sps->r->sps_act_enabled_flag && cu->pred_mode != MODE_INTRA && tree_type == SINGLE_TREE) { avpriv_report_missing_feature(fc->log_ctx, "Adaptive Color Transform"); return AVERROR_PATCHWELCOME; } lc->parse.lfnst_dc_only = 1; lc->parse.lfnst_zero_out_sig_coeff_flag = 1; lc->parse.mts_dc_only = 1; lc->parse.mts_zero_out_sig_coeff_flag = 1; ret = hls_transform_tree(lc, x0, y0, cb_width, cb_height, cu->ch_type); if (ret < 0) return ret; cu->lfnst_idx = lfnst_idx_decode(lc); cu->mts_idx = mts_idx_decode(lc); set_qp_c(lc); if (ret < 0) return ret; } else { ret = skipped_transform_tree_unit(lc); if (ret < 0) return ret; } set_cu_tabs(lc, cu); return 0; } static int derive_mode_type_condition(const VVCLocalContext *lc, const VVCSplitMode split, const int cb_width, const int cb_height, const VVCModeType mode_type_curr) { const H266RawSliceHeader *rsh = lc->sc->sh.r; const VVCSPS *sps = lc->fc->ps.sps; const int area = cb_width * cb_height; if ((IS_I(rsh) && sps->r->sps_qtbtt_dual_tree_intra_flag) || mode_type_curr != MODE_TYPE_ALL || !sps->r->sps_chroma_format_idc || sps->r->sps_chroma_format_idc == CHROMA_FORMAT_444) return 0; if ((area == 64 && (split == SPLIT_QT || split == SPLIT_TT_HOR || split == SPLIT_TT_VER)) || (area == 32 && (split == SPLIT_BT_HOR || split == SPLIT_BT_VER))) return 1; if ((area == 64 && (split == SPLIT_BT_HOR || split == SPLIT_BT_VER) && sps->r->sps_chroma_format_idc == CHROMA_FORMAT_420) || (area == 128 && (split == SPLIT_TT_HOR || split == SPLIT_TT_VER) && sps->r->sps_chroma_format_idc == CHROMA_FORMAT_420) || (cb_width == 8 && split == SPLIT_BT_VER) || (cb_width == 16 && split == SPLIT_TT_VER)) return 1 + !IS_I(rsh); return 0; } static VVCModeType mode_type_decode(VVCLocalContext *lc, const int x0, const int y0, const int cb_width, const int cb_height, const VVCSplitMode split, const int ch_type, const VVCModeType mode_type_curr) { VVCModeType mode_type; const int mode_type_condition = derive_mode_type_condition(lc, split, cb_width, cb_height, mode_type_curr); if (mode_type_condition == 1) mode_type = MODE_TYPE_INTRA; else if (mode_type_condition == 2) { mode_type = ff_vvc_non_inter_flag(lc, x0, y0, ch_type) ? MODE_TYPE_INTRA : MODE_TYPE_INTER; } else { mode_type = mode_type_curr; } return mode_type; } static int hls_coding_tree(VVCLocalContext *lc, int x0, int y0, int cb_width, int cb_height, int qg_on_y, int qg_on_c, int cb_sub_div, int cqt_depth, int mtt_depth, int depth_offset, int part_idx, VVCSplitMode last_split_mode, VVCTreeType tree_type_curr, VVCModeType mode_type_curr); static int coding_tree_btv(VVCLocalContext *lc, int x0, int y0, int cb_width, int cb_height, int qg_on_y, int qg_on_c, int cb_sub_div, int cqt_depth, int mtt_depth, int depth_offset, VVCTreeType tree_type, VVCModeType mode_type) { #define CODING_TREE(x, idx) do { \ ret = hls_coding_tree(lc, x, y0, cb_width / 2, cb_height, \ qg_on_y, qg_on_c, cb_sub_div + 1, cqt_depth, mtt_depth + 1, \ depth_offset, idx, SPLIT_BT_VER, tree_type, mode_type); \ if (ret < 0) \ return ret; \ } while (0); const VVCPPS *pps = lc->fc->ps.pps; const int x1 = x0 + cb_width / 2; int ret = 0; depth_offset += (x0 + cb_width > pps->width) ? 1 : 0; CODING_TREE(x0, 0); if (x1 < pps->width) CODING_TREE(x1, 1); return 0; #undef CODING_TREE } static int coding_tree_bth(VVCLocalContext *lc, int x0, int y0, int cb_width, int cb_height, int qg_on_y, int qg_on_c, int cb_sub_div, int cqt_depth, int mtt_depth, int depth_offset, VVCTreeType tree_type, VVCModeType mode_type) { #define CODING_TREE(y, idx) do { \ ret = hls_coding_tree(lc, x0, y, cb_width , cb_height / 2, \ qg_on_y, qg_on_c, cb_sub_div + 1, cqt_depth, mtt_depth + 1, \ depth_offset, idx, SPLIT_BT_HOR, tree_type, mode_type); \ if (ret < 0) \ return ret; \ } while (0); const VVCPPS *pps = lc->fc->ps.pps; const int y1 = y0 + (cb_height / 2); int ret = 0; depth_offset += (y0 + cb_height > pps->height) ? 1 : 0; CODING_TREE(y0, 0); if (y1 < pps->height) CODING_TREE(y1, 1); return 0; #undef CODING_TREE } static int coding_tree_ttv(VVCLocalContext *lc, int x0, int y0, int cb_width, int cb_height, int qg_on_y, int qg_on_c, int cb_sub_div, int cqt_depth, int mtt_depth, int depth_offset, VVCTreeType tree_type, VVCModeType mode_type) { #define CODING_TREE(x, w, sub_div, idx) do { \ ret = hls_coding_tree(lc, x, y0, w, cb_height, \ qg_on_y, qg_on_c, sub_div, cqt_depth, mtt_depth + 1, \ depth_offset, idx, SPLIT_TT_VER, tree_type, mode_type); \ if (ret < 0) \ return ret; \ } while (0); const VVCSH *sh = &lc->sc->sh; const int x1 = x0 + cb_width / 4; const int x2 = x0 + cb_width * 3 / 4; int ret; qg_on_y = qg_on_y && (cb_sub_div + 2 <= sh->cu_qp_delta_subdiv); qg_on_c = qg_on_c && (cb_sub_div + 2 <= sh->cu_chroma_qp_offset_subdiv); CODING_TREE(x0, cb_width / 4, cb_sub_div + 2, 0); CODING_TREE(x1, cb_width / 2, cb_sub_div + 1, 1); CODING_TREE(x2, cb_width / 4, cb_sub_div + 2, 2); return 0; #undef CODING_TREE } static int coding_tree_tth(VVCLocalContext *lc, int x0, int y0, int cb_width, int cb_height, int qg_on_y, int qg_on_c, int cb_sub_div, int cqt_depth, int mtt_depth, int depth_offset, VVCTreeType tree_type, VVCModeType mode_type) { #define CODING_TREE(y, h, sub_div, idx) do { \ ret = hls_coding_tree(lc, x0, y, cb_width, h, \ qg_on_y, qg_on_c, sub_div, cqt_depth, mtt_depth + 1, \ depth_offset, idx, SPLIT_TT_HOR, tree_type, mode_type); \ if (ret < 0) \ return ret; \ } while (0); const VVCSH *sh = &lc->sc->sh; const int y1 = y0 + (cb_height / 4); const int y2 = y0 + (3 * cb_height / 4); int ret; qg_on_y = qg_on_y && (cb_sub_div + 2 <= sh->cu_qp_delta_subdiv); qg_on_c = qg_on_c && (cb_sub_div + 2 <= sh->cu_chroma_qp_offset_subdiv); CODING_TREE(y0, cb_height / 4, cb_sub_div + 2, 0); CODING_TREE(y1, cb_height / 2, cb_sub_div + 1, 1); CODING_TREE(y2, cb_height / 4, cb_sub_div + 2, 2); return 0; #undef CODING_TREE } static int coding_tree_qt(VVCLocalContext *lc, int x0, int y0, int cb_width, int cb_height, int qg_on_y, int qg_on_c, int cb_sub_div, int cqt_depth, int mtt_depth, int depth_offset, VVCTreeType tree_type, VVCModeType mode_type) { #define CODING_TREE(x, y, idx) do { \ ret = hls_coding_tree(lc, x, y, cb_width / 2, cb_height / 2, \ qg_on_y, qg_on_c, cb_sub_div + 2, cqt_depth + 1, 0, 0, \ idx, SPLIT_QT, tree_type, mode_type); \ if (ret < 0) \ return ret; \ } while (0); const VVCPPS *pps = lc->fc->ps.pps; const int x1 = x0 + cb_width / 2; const int y1 = y0 + cb_height / 2; int ret = 0; CODING_TREE(x0, y0, 0); if (x1 < pps->width) CODING_TREE(x1, y0, 1); if (y1 < pps->height) CODING_TREE(x0, y1, 2); if (x1 < pps->width && y1 < pps->height) CODING_TREE(x1, y1, 3); return 0; #undef CODING_TREE } typedef int (*coding_tree_fn)(VVCLocalContext *lc, int x0, int y0, int cb_width, int cb_height, int qg_on_y, int qg_on_c, int cb_sub_div, int cqt_depth, int mtt_depth, int depth_offset, VVCTreeType tree_type, VVCModeType mode_type); const static coding_tree_fn coding_tree[] = { coding_tree_tth, coding_tree_bth, coding_tree_ttv, coding_tree_btv, coding_tree_qt, }; static int hls_coding_tree(VVCLocalContext *lc, int x0, int y0, int cb_width, int cb_height, int qg_on_y, int qg_on_c, int cb_sub_div, int cqt_depth, int mtt_depth, int depth_offset, int part_idx, VVCSplitMode last_split_mode, VVCTreeType tree_type_curr, VVCModeType mode_type_curr) { VVCFrameContext *fc = lc->fc; const VVCPPS *pps = fc->ps.pps; const VVCSH *sh = &lc->sc->sh; const H266RawSliceHeader *rsh = sh->r; const int ch_type = tree_type_curr == DUAL_TREE_CHROMA; int ret; VVCAllowedSplit allowed; if (pps->r->pps_cu_qp_delta_enabled_flag && qg_on_y && cb_sub_div <= sh->cu_qp_delta_subdiv) { lc->parse.is_cu_qp_delta_coded = 0; lc->parse.cu_qg_top_left_x = x0; lc->parse.cu_qg_top_left_y = y0; } if (rsh->sh_cu_chroma_qp_offset_enabled_flag && qg_on_c && cb_sub_div <= sh->cu_chroma_qp_offset_subdiv) { lc->parse.is_cu_chroma_qp_offset_coded = 0; memset(lc->parse.chroma_qp_offset, 0, sizeof(lc->parse.chroma_qp_offset)); } can_split(lc, x0, y0, cb_width, cb_height, mtt_depth, depth_offset, part_idx, last_split_mode, tree_type_curr, mode_type_curr, &allowed); if (ff_vvc_split_cu_flag(lc, x0, y0, cb_width, cb_height, ch_type, &allowed)) { VVCSplitMode split = ff_vvc_split_mode(lc, x0, y0, cb_width, cb_height, cqt_depth, mtt_depth, ch_type, &allowed); VVCModeType mode_type = mode_type_decode(lc, x0, y0, cb_width, cb_height, split, ch_type, mode_type_curr); VVCTreeType tree_type = (mode_type == MODE_TYPE_INTRA) ? DUAL_TREE_LUMA : tree_type_curr; if (split != SPLIT_QT) { if (!(x0 & 31) && !(y0 & 31) && mtt_depth <= 1) TAB_MSM(fc, mtt_depth, x0, y0) = split; } ret = coding_tree[split - 1](lc, x0, y0, cb_width, cb_height, qg_on_y, qg_on_c, cb_sub_div, cqt_depth, mtt_depth, depth_offset, tree_type, mode_type); if (ret < 0) return ret; if (mode_type_curr == MODE_TYPE_ALL && mode_type == MODE_TYPE_INTRA) { ret = hls_coding_tree(lc, x0, y0, cb_width, cb_height, 0, qg_on_c, cb_sub_div, cqt_depth, mtt_depth, 0, 0, split, DUAL_TREE_CHROMA, mode_type); if (ret < 0) return ret; } } else { ret = hls_coding_unit(lc, x0, y0, cb_width, cb_height, cqt_depth, tree_type_curr, mode_type_curr); if (ret < 0) return ret; } return 0; } static int dual_tree_implicit_qt_split(VVCLocalContext *lc, const int x0, const int y0, const int cb_size, const int cqt_depth) { const VVCSH *sh = &lc->sc->sh; const H266RawSliceHeader *rsh = sh->r; const VVCPPS *pps = lc->fc->ps.pps; const int cb_subdiv = 2 * cqt_depth; int ret; if (cb_size > 64) { #define DUAL_TREE(x, y) do { \ ret = dual_tree_implicit_qt_split(lc, x, y, cb_size / 2, cqt_depth + 1); \ if (ret < 0) \ return ret; \ } while (0) const int x1 = x0 + (cb_size / 2); const int y1 = y0 + (cb_size / 2); if (pps->r->pps_cu_qp_delta_enabled_flag && cb_subdiv <= sh->cu_qp_delta_subdiv) { lc->parse.is_cu_qp_delta_coded = 0; lc->parse.cu_qg_top_left_x = x0; lc->parse.cu_qg_top_left_y = y0; } if (rsh->sh_cu_chroma_qp_offset_enabled_flag && cb_subdiv <= sh->cu_chroma_qp_offset_subdiv) { lc->parse.is_cu_chroma_qp_offset_coded = 0; memset(lc->parse.chroma_qp_offset, 0, sizeof(lc->parse.chroma_qp_offset)); } DUAL_TREE(x0, y0); if (x1 < pps->width) DUAL_TREE(x1, y0); if (y1 < pps->height) DUAL_TREE(x0, y1); if (x1 < pps->width && y1 < pps->height) DUAL_TREE(x1, y1); #undef DUAL_TREE } else { #define CODING_TREE(tree_type) do { \ const int qg_on_y = tree_type == DUAL_TREE_LUMA; \ ret = hls_coding_tree(lc, x0, y0, cb_size, cb_size, qg_on_y, !qg_on_y, \ cb_subdiv, cqt_depth, 0, 0, 0, SPLIT_NONE, tree_type, MODE_TYPE_ALL); \ if (ret < 0) \ return ret; \ } while (0) CODING_TREE(DUAL_TREE_LUMA); CODING_TREE(DUAL_TREE_CHROMA); #undef CODING_TREE } return 0; } #define SET_SAO(elem, value) \ do { \ if (!sao_merge_up_flag && !sao_merge_left_flag) \ sao->elem = value; \ else if (sao_merge_left_flag) \ sao->elem = CTB(fc->tab.sao, rx-1, ry).elem; \ else if (sao_merge_up_flag) \ sao->elem = CTB(fc->tab.sao, rx, ry-1).elem; \ else \ sao->elem = 0; \ } while (0) static void hls_sao(VVCLocalContext *lc, const int rx, const int ry) { VVCFrameContext *fc = lc->fc; const H266RawSliceHeader *rsh = lc->sc->sh.r; int sao_merge_left_flag = 0; int sao_merge_up_flag = 0; SAOParams *sao = &CTB(fc->tab.sao, rx, ry); int c_idx, i; if (rsh->sh_sao_luma_used_flag || rsh->sh_sao_chroma_used_flag) { if (rx > 0) { if (lc->ctb_left_flag) sao_merge_left_flag = ff_vvc_sao_merge_flag_decode(lc); } if (ry > 0 && !sao_merge_left_flag) { if (lc->ctb_up_flag) sao_merge_up_flag = ff_vvc_sao_merge_flag_decode(lc); } } for (c_idx = 0; c_idx < (fc->ps.sps->r->sps_chroma_format_idc ? 3 : 1); c_idx++) { const int sao_used_flag = !c_idx ? rsh->sh_sao_luma_used_flag : rsh->sh_sao_chroma_used_flag; if (!sao_used_flag) { sao->type_idx[c_idx] = SAO_NOT_APPLIED; continue; } if (c_idx == 2) { sao->type_idx[2] = sao->type_idx[1]; sao->eo_class[2] = sao->eo_class[1]; } else { SET_SAO(type_idx[c_idx], ff_vvc_sao_type_idx_decode(lc)); } if (sao->type_idx[c_idx] == SAO_NOT_APPLIED) continue; for (i = 0; i < 4; i++) SET_SAO(offset_abs[c_idx][i], ff_vvc_sao_offset_abs_decode(lc)); if (sao->type_idx[c_idx] == SAO_BAND) { for (i = 0; i < 4; i++) { if (sao->offset_abs[c_idx][i]) { SET_SAO(offset_sign[c_idx][i], ff_vvc_sao_offset_sign_decode(lc)); } else { sao->offset_sign[c_idx][i] = 0; } } SET_SAO(band_position[c_idx], ff_vvc_sao_band_position_decode(lc)); } else if (c_idx != 2) { SET_SAO(eo_class[c_idx], ff_vvc_sao_eo_class_decode(lc)); } // Inferred parameters sao->offset_val[c_idx][0] = 0; for (i = 0; i < 4; i++) { sao->offset_val[c_idx][i + 1] = sao->offset_abs[c_idx][i]; if (sao->type_idx[c_idx] == SAO_EDGE) { if (i > 1) sao->offset_val[c_idx][i + 1] = -sao->offset_val[c_idx][i + 1]; } else if (sao->offset_sign[c_idx][i]) { sao->offset_val[c_idx][i + 1] = -sao->offset_val[c_idx][i + 1]; } sao->offset_val[c_idx][i + 1] *= 1 << (fc->ps.sps->bit_depth - FFMIN(10, fc->ps.sps->bit_depth)); } } } static void alf_params(VVCLocalContext *lc, const int rx, const int ry) { const VVCFrameContext *fc = lc->fc; const H266RawSliceHeader *sh = lc->sc->sh.r; ALFParams *alf = &CTB(fc->tab.alf, rx, ry); alf->ctb_flag[LUMA] = alf->ctb_flag[CB] = alf->ctb_flag[CR] = 0; if (sh->sh_alf_enabled_flag) { alf->ctb_flag[LUMA] = ff_vvc_alf_ctb_flag(lc, rx, ry, LUMA); if (alf->ctb_flag[LUMA]) { uint8_t alf_use_aps_flag = 0; if (sh->sh_num_alf_aps_ids_luma > 0) alf_use_aps_flag = ff_vvc_alf_use_aps_flag(lc); if (alf_use_aps_flag) { alf->ctb_filt_set_idx_y = 16; if (sh->sh_num_alf_aps_ids_luma > 1) alf->ctb_filt_set_idx_y += ff_vvc_alf_luma_prev_filter_idx(lc); } else { alf->ctb_filt_set_idx_y = ff_vvc_alf_luma_fixed_filter_idx(lc); } } for (int c_idx = CB; c_idx <= CR; c_idx++) { const uint8_t alf_enabled_flag = c_idx == CB ? sh->sh_alf_cb_enabled_flag : sh->sh_alf_cr_enabled_flag; if (alf_enabled_flag) { const VVCALF *aps = fc->ps.alf_list[sh->sh_alf_aps_id_chroma]; alf->ctb_flag[c_idx] = ff_vvc_alf_ctb_flag(lc, rx, ry, c_idx); alf->alf_ctb_filter_alt_idx[c_idx - 1] = 0; if (alf->ctb_flag[c_idx] && aps->num_chroma_filters > 1) alf->alf_ctb_filter_alt_idx[c_idx - 1] = ff_vvc_alf_ctb_filter_alt_idx(lc, c_idx, aps->num_chroma_filters); } } } if (fc->ps.sps->r->sps_ccalf_enabled_flag) { const uint8_t cc_enabled[] = { sh->sh_alf_cc_cb_enabled_flag, sh->sh_alf_cc_cr_enabled_flag }; const uint8_t cc_aps_id[] = { sh->sh_alf_cc_cb_aps_id, sh->sh_alf_cc_cr_aps_id }; for (int i = 0; i < 2; i++) { alf->ctb_cc_idc[i] = 0; if (cc_enabled[i]) { const VVCALF *aps = fc->ps.alf_list[cc_aps_id[i]]; alf->ctb_cc_idc[i] = ff_vvc_alf_ctb_cc_idc(lc, rx, ry, i, aps->num_cc_filters[i]); } } } } static void deblock_params(VVCLocalContext *lc, const int rx, const int ry) { VVCFrameContext *fc = lc->fc; const VVCSH *sh = &lc->sc->sh; CTB(fc->tab.deblock, rx, ry) = sh->deblock; } static int hls_coding_tree_unit(VVCLocalContext *lc, const int x0, const int y0, const int ctu_idx, const int rx, const int ry) { const VVCFrameContext *fc = lc->fc; const VVCSPS *sps = fc->ps.sps; const VVCPPS *pps = fc->ps.pps; const VVCSH *sh = &lc->sc->sh; const H266RawSliceHeader *rsh = sh->r; const unsigned int ctb_size = sps->ctb_size_y; int ret = 0; memset(lc->parse.chroma_qp_offset, 0, sizeof(lc->parse.chroma_qp_offset)); hls_sao(lc, x0 >> sps->ctb_log2_size_y, y0 >> sps->ctb_log2_size_y); alf_params(lc, x0 >> sps->ctb_log2_size_y, y0 >> sps->ctb_log2_size_y); deblock_params(lc, x0 >> sps->ctb_log2_size_y, y0 >> sps->ctb_log2_size_y); if (IS_I(rsh) && sps->r->sps_qtbtt_dual_tree_intra_flag) ret = dual_tree_implicit_qt_split(lc, x0, y0, ctb_size, 0); else ret = hls_coding_tree(lc, x0, y0, ctb_size, ctb_size, 1, 1, 0, 0, 0, 0, 0, SPLIT_NONE, SINGLE_TREE, MODE_TYPE_ALL); if (ret < 0) return ret; if (rx == pps->ctb_to_col_bd[rx + 1] - 1) { if (ctu_idx == sh->num_ctus_in_curr_slice - 1) { const int end_of_slice_one_bit = ff_vvc_end_of_slice_flag_decode(lc); if (!end_of_slice_one_bit) return AVERROR_INVALIDDATA; } else { if (ry == pps->ctb_to_row_bd[ry + 1] - 1) { const int end_of_tile_one_bit = ff_vvc_end_of_tile_one_bit(lc); if (!end_of_tile_one_bit) return AVERROR_INVALIDDATA; } else { if (fc->ps.sps->r->sps_entropy_coding_sync_enabled_flag) { const int end_of_subset_one_bit = ff_vvc_end_of_subset_one_bit(lc); if (!end_of_subset_one_bit) return AVERROR_INVALIDDATA; } } } } return 0; } static int has_inter_luma(const CodingUnit *cu) { return cu->pred_mode != MODE_INTRA && cu->pred_mode != MODE_PLT && cu->tree_type != DUAL_TREE_CHROMA; } static int pred_get_y(const int y0, const Mv *mv, const int height) { return FFMAX(0, y0 + (mv->y >> 4) + height); } static void cu_get_max_y(const CodingUnit *cu, int max_y[2][VVC_MAX_REF_ENTRIES], const VVCFrameContext *fc) { const PredictionUnit *pu = &cu->pu; if (pu->merge_gpm_flag) { for (int i = 0; i < FF_ARRAY_ELEMS(pu->gpm_mv); i++) { const MvField *mvf = pu->gpm_mv + i; const int lx = mvf->pred_flag - PF_L0; const int idx = mvf->ref_idx[lx]; const int y = pred_get_y(cu->y0, mvf->mv + lx, cu->cb_height); max_y[lx][idx] = FFMAX(max_y[lx][idx], y); } } else { const MotionInfo *mi = &pu->mi; const int max_dmvr_off = (!pu->inter_affine_flag && pu->dmvr_flag) ? 2 : 0; const int sbw = cu->cb_width / mi->num_sb_x; const int sbh = cu->cb_height / mi->num_sb_y; for (int sby = 0; sby < mi->num_sb_y; sby++) { for (int sbx = 0; sbx < mi->num_sb_x; sbx++) { const int x0 = cu->x0 + sbx * sbw; const int y0 = cu->y0 + sby * sbh; const MvField *mvf = ff_vvc_get_mvf(fc, x0, y0); for (int lx = 0; lx < 2; lx++) { const PredFlag mask = 1 << lx; if (mvf->pred_flag & mask) { const int idx = mvf->ref_idx[lx]; const int y = pred_get_y(y0, mvf->mv + lx, sbh); max_y[lx][idx] = FFMAX(max_y[lx][idx], y + max_dmvr_off); } } } } } } static void ctu_get_pred(VVCLocalContext *lc, const int rs) { const VVCFrameContext *fc = lc->fc; const H266RawSliceHeader *rsh = lc->sc->sh.r; CTU *ctu = fc->tab.ctus + rs; const CodingUnit *cu = ctu->cus; if (IS_I(rsh)) return; for (int lx = 0; lx < 2; lx++) memset(ctu->max_y[lx], -1, sizeof(ctu->max_y[0][0]) * rsh->num_ref_idx_active[lx]); while (cu) { if (has_inter_luma(cu)) { cu_get_max_y(cu, ctu->max_y, fc); ctu->has_dmvr |= cu->pu.dmvr_flag; } cu = cu->next; } ctu->max_y_idx[0] = ctu->max_y_idx[1] = 0; } int ff_vvc_coding_tree_unit(VVCLocalContext *lc, const int ctu_idx, const int rs, const int rx, const int ry) { const VVCFrameContext *fc = lc->fc; const VVCSPS *sps = fc->ps.sps; const VVCPPS *pps = fc->ps.pps; const int x_ctb = rx << sps->ctb_log2_size_y; const int y_ctb = ry << sps->ctb_log2_size_y; const int ctb_size = 1 << sps->ctb_log2_size_y << sps->ctb_log2_size_y; EntryPoint* ep = lc->ep; int ret; if (rx == pps->ctb_to_col_bd[rx]) { ep->num_hmvp = 0; ep->num_hmvp_ibc = 0; ep->is_first_qg = ry == pps->ctb_to_row_bd[ry] || !ctu_idx; } lc->coeffs = fc->tab.coeffs + rs * ctb_size * VVC_MAX_SAMPLE_ARRAYS; lc->cu = NULL; ff_vvc_cabac_init(lc, ctu_idx, rx, ry); ff_vvc_decode_neighbour(lc, x_ctb, y_ctb, rx, ry, rs); ret = hls_coding_tree_unit(lc, x_ctb, y_ctb, ctu_idx, rx, ry); if (ret < 0) return ret; ctu_get_pred(lc, rs); return 0; } void ff_vvc_decode_neighbour(VVCLocalContext *lc, const int x_ctb, const int y_ctb, const int rx, const int ry, const int rs) { VVCFrameContext *fc = lc->fc; const int ctb_size = fc->ps.sps->ctb_size_y; lc->end_of_tiles_x = fc->ps.pps->width; lc->end_of_tiles_y = fc->ps.pps->height; if (fc->ps.pps->ctb_to_col_bd[rx] != fc->ps.pps->ctb_to_col_bd[rx + 1]) lc->end_of_tiles_x = FFMIN(x_ctb + ctb_size, lc->end_of_tiles_x); if (fc->ps.pps->ctb_to_row_bd[ry] != fc->ps.pps->ctb_to_row_bd[ry + 1]) lc->end_of_tiles_y = FFMIN(y_ctb + ctb_size, lc->end_of_tiles_y); lc->boundary_flags = 0; if (rx > 0 && fc->ps.pps->ctb_to_col_bd[rx] != fc->ps.pps->ctb_to_col_bd[rx - 1]) lc->boundary_flags |= BOUNDARY_LEFT_TILE; if (rx > 0 && fc->tab.slice_idx[rs] != fc->tab.slice_idx[rs - 1]) lc->boundary_flags |= BOUNDARY_LEFT_SLICE; if (ry > 0 && fc->ps.pps->ctb_to_row_bd[ry] != fc->ps.pps->ctb_to_row_bd[ry - 1]) lc->boundary_flags |= BOUNDARY_UPPER_TILE; if (ry > 0 && fc->tab.slice_idx[rs] != fc->tab.slice_idx[rs - fc->ps.pps->ctb_width]) lc->boundary_flags |= BOUNDARY_UPPER_SLICE; if (fc->ps.sps->r->sps_subpic_ctu_top_left_x[lc->sc->sh.r->curr_subpic_idx] == rx) lc->boundary_flags |= BOUNDARY_LEFT_SUBPIC; if (fc->ps.sps->r->sps_subpic_ctu_top_left_y[lc->sc->sh.r->curr_subpic_idx] == ry) lc->boundary_flags |= BOUNDARY_UPPER_SUBPIC; lc->ctb_left_flag = rx > 0 && !(lc->boundary_flags & BOUNDARY_LEFT_TILE); lc->ctb_up_flag = ry > 0 && !(lc->boundary_flags & BOUNDARY_UPPER_TILE) && !(lc->boundary_flags & BOUNDARY_UPPER_SLICE); lc->ctb_up_right_flag = lc->ctb_up_flag && (fc->ps.pps->ctb_to_col_bd[rx] == fc->ps.pps->ctb_to_col_bd[rx + 1]) && (fc->ps.pps->ctb_to_row_bd[ry] == fc->ps.pps->ctb_to_row_bd[ry - 1]); lc->ctb_up_left_flag = lc->ctb_left_flag && lc->ctb_up_flag; } void ff_vvc_set_neighbour_available(VVCLocalContext *lc, const int x0, const int y0, const int w, const int h) { const int log2_ctb_size = lc->fc->ps.sps->ctb_log2_size_y; const int x0b = av_mod_uintp2(x0, log2_ctb_size); const int y0b = av_mod_uintp2(y0, log2_ctb_size); lc->na.cand_up = (lc->ctb_up_flag || y0b); lc->na.cand_left = (lc->ctb_left_flag || x0b); lc->na.cand_up_left = (x0b || y0b) ? lc->na.cand_left && lc->na.cand_up : lc->ctb_up_left_flag; lc->na.cand_up_right_sap = (x0b + w == 1 << log2_ctb_size) ? lc->ctb_up_right_flag && !y0b : lc->na.cand_up; lc->na.cand_up_right = lc->na.cand_up_right_sap && (x0 + w) < lc->end_of_tiles_x; } void ff_vvc_ctu_free_cus(CTU *ctu) { CodingUnit **cus = &ctu->cus; while (*cus) { CodingUnit *cu = *cus; TransformUnit **head = &cu->tus.head; *cus = cu->next; while (*head) { TransformUnit *tu = *head; *head = tu->next; ff_refstruct_unref(&tu); } cu->tus.tail = NULL; ff_refstruct_unref(&cu); } } int ff_vvc_get_qPy(const VVCFrameContext *fc, const int xc, const int yc) { const int min_cb_log2_size_y = fc->ps.sps->min_cb_log2_size_y; const int x = xc >> min_cb_log2_size_y; const int y = yc >> min_cb_log2_size_y; return fc->tab.qp[LUMA][x + y * fc->ps.pps->min_cb_width]; } void ff_vvc_ep_init_stat_coeff(EntryPoint *ep, const int bit_depth, const int persistent_rice_adaptation_enabled_flag) { for (size_t i = 0; i < FF_ARRAY_ELEMS(ep->stat_coeff); ++i) { ep->stat_coeff[i] = persistent_rice_adaptation_enabled_flag ? 2 * (av_log2(bit_depth - 10)) : 0; } }