From def855a027db2181fcc1ee46f1b5846e709f7134 Mon Sep 17 00:00:00 2001 From: siivonek Date: Wed, 31 Aug 2022 12:28:57 +0300 Subject: [PATCH] [isp] Fix error in last sig coeff function call. Height was not used. Fix cbf writing. Fix transform skip flag writing. --- src/encode_coding_tree.c | 24 +++++++++++-------- src/search.c | 14 +++++++---- .../generic/encode_coding_tree-generic.c | 2 +- 3 files changed, 24 insertions(+), 16 deletions(-) diff --git a/src/encode_coding_tree.c b/src/encode_coding_tree.c index c16fede2..ee4d1f88 100644 --- a/src/encode_coding_tree.c +++ b/src/encode_coding_tree.c @@ -412,13 +412,13 @@ void uvg_encode_last_significant_xy(cabac_data_t * const cabac, uint8_t type, uint8_t scan, double* bits_out) { const int index_x = uvg_math_floor_log2(width); - const int index_y = uvg_math_floor_log2(width); + const int index_y = uvg_math_floor_log2(height); const int prefix_ctx[8] = { 0, 0, 0, 3, 6, 10, 15, 21 }; //ToDo: own ctx_offset and shift for X and Y uint8_t ctx_offset_x = type ? 0 : prefix_ctx[index_x]; uint8_t ctx_offset_y = type ? 0 : prefix_ctx[index_y]; uint8_t shift_x = type ? CLIP(0, 2, width >> 3) : (index_x + 1) >> 2; - uint8_t shift_y = type ? CLIP(0, 2, width >> 3) : (index_y + 1) >> 2; + uint8_t shift_y = type ? CLIP(0, 2, height >> 3) : (index_y + 1) >> 2; double bits = 0; cabac_ctx_t *base_ctx_x = (type ? cabac->ctx.cu_ctx_last_x_chroma : cabac->ctx.cu_ctx_last_x_luma); @@ -557,7 +557,7 @@ static void encode_transform_unit( // CoeffNxN // Residual Coding - if(state->encoder_control->cfg.trskip_enable && width <= (1 << state->encoder_control->cfg.trskip_max_size)) { + if(state->encoder_control->cfg.trskip_enable && width <= (1 << state->encoder_control->cfg.trskip_max_size && !(cur_pu->type == CU_INTRA && cur_pu->intra.isp_mode != ISP_MODE_NO_ISP))) { cabac->cur_ctx = &cabac->ctx.transform_skip_model_luma; CABAC_BIN(cabac, cur_pu->tr_idx == MTS_SKIP, "transform_skip_flag"); DBG_YUVIEW_VALUE(state->frame->poc, DBG_YUVIEW_TR_SKIP, x, y, width, width, (cur_pu->tr_idx == MTS_SKIP) ? 1 : 0); @@ -619,7 +619,8 @@ static void encode_transform_coeff( bool only_chroma, lcu_coeff_t* coeff, enum uvg_tree_type tree_type, - bool last_split) // Always true except when writing sub partition coeffs (ISP) + bool last_split, + int *luma_cbf_ctx) // Always true except when writing sub partition coeffs (ISP) { cabac_data_t * const cabac = &state->cabac; const int x = cu_loc->x; @@ -706,7 +707,7 @@ static void encode_transform_coeff( cu_loc_t loc; uvg_cu_loc_ctor(&loc, (x + i * split_width), (y + j * split_height), width >> 1, height >> 1); - encode_transform_coeff(state, &loc, depth + 1, tr_depth + 1, cb_flag_u, cb_flag_v, only_chroma, coeff, tree_type, true); + encode_transform_coeff(state, &loc, depth + 1, tr_depth + 1, cb_flag_u, cb_flag_v, only_chroma, coeff, tree_type, true, luma_cbf_ctx); } } return; @@ -718,8 +719,9 @@ static void encode_transform_coeff( // - we have chroma coefficients at this level // When it is not present, it is inferred to be 1. if ((cur_cu->type == CU_INTRA || tr_depth > 0 || cb_flag_u || cb_flag_v) && !only_chroma && tree_type != UVG_CHROMA_T) { - cabac->cur_ctx = &(cabac->ctx.qt_cbf_model_luma[0]); + cabac->cur_ctx = &(cabac->ctx.qt_cbf_model_luma[*luma_cbf_ctx]); CABAC_BIN(cabac, cb_flag_y, "cbf_luma"); + *luma_cbf_ctx = 2 + cb_flag_y; } if (cb_flag_y | cb_flag_u | cb_flag_v) { @@ -1673,7 +1675,8 @@ void uvg_encode_coding_tree( } // Code (possible) coeffs to bitstream if (cbf) { - encode_transform_coeff(state, &cu_loc, depth, 0, 0, 0, 0, coeff, tree_type, true); + int luma_cbf_ctx = 0; + encode_transform_coeff(state, &cu_loc, depth, 0, 0, 0, 0, coeff, tree_type, true, &luma_cbf_ctx); } encode_mts_idx(state, cabac, cur_cu); @@ -1688,6 +1691,7 @@ void uvg_encode_coding_tree( if (state->encoder_control->chroma_format != UVG_CSP_400 && depth != 4 && tree_type == UVG_BOTH_T) { encode_chroma_intra_cu(cabac, cur_cu, state->encoder_control->cfg.cclm, NULL); } + int luma_cbf_ctx = 0; if (tree_type != UVG_CHROMA_T) { // Cycle through sub partitions if ISP enabled. @@ -1695,14 +1699,14 @@ void uvg_encode_coding_tree( // Small blocks are split only twice. int split_type = cur_cu->intra.isp_mode; int split_limit = split_type == ISP_MODE_NO_ISP ? 1 : uvg_get_isp_split_num(cu_width, cu_height, split_type); - + luma_cbf_ctx = split_limit != 1 ? 2 : 0; for (int i = 0; i < split_limit; ++i) { cu_loc_t split_loc; uvg_get_isp_split_loc(&split_loc, x, y, cu_width, cu_height, i, split_type); // Check if last split to write chroma bool last_split = (i + 1) == split_limit; - encode_transform_coeff(state, &split_loc, depth, 0, 0, 0, 0, coeff, tree_type, last_split); + encode_transform_coeff(state, &split_loc, depth, 0, 0, 0, 0, coeff, tree_type, last_split, &luma_cbf_ctx); } } @@ -1721,7 +1725,7 @@ void uvg_encode_coding_tree( tmp->violates_lfnst_constrained_luma = false; tmp->violates_lfnst_constrained_chroma = false; tmp->lfnst_last_scan_pos = false; - encode_transform_coeff(state, &cu_loc, depth, 0, 0, 0, 1, coeff, tree_type, true); + encode_transform_coeff(state, &cu_loc, depth, 0, 0, 0, 1, coeff, tree_type, true, &luma_cbf_ctx); // Write LFNST only once for single tree structure encode_lfnst_idx(state, cabac, tmp, x, y, depth, cu_width, cu_height, tree_type, COLOR_UV); } diff --git a/src/search.c b/src/search.c index 5c595475..0790b475 100644 --- a/src/search.c +++ b/src/search.c @@ -368,11 +368,13 @@ double uvg_cu_rd_cost_luma(const encoder_state_t *const state, } } else { - cabac_ctx_t* ctx = &(cabac->ctx.qt_cbf_model_luma[0]); // TODO: 8x4 CUs for (int i = 0; i < 4; i++) { + int luma_ctx = 2; if (i != 3 && isp_cbf != 0x8) { - CABAC_FBITS_UPDATE(cabac, ctx, (isp_cbf >> i) & 1, tr_tree_bits, "cbf_y_search"); + const int flag = (isp_cbf >> i) & 1; + CABAC_FBITS_UPDATE(cabac, &(cabac->ctx.qt_cbf_model_luma[luma_ctx]), flag, tr_tree_bits, "cbf_y_search"); + luma_ctx = 2 + flag; } } } @@ -597,11 +599,13 @@ static double cu_rd_cost_tr_split_accurate( } } else { - cabac_ctx_t* ctx = &(cabac->ctx.qt_cbf_model_luma[0]); // TODO: 8x4 CUs for (int i = 0; i < 4; i++) { + int luma_ctx = 2; if (i != 3 && isp_cbf != 0x8) { - CABAC_FBITS_UPDATE(cabac, ctx, (isp_cbf >> i) & 1, tr_tree_bits, "cbf_y_search"); + const int flag = (isp_cbf >> i) & 1; + CABAC_FBITS_UPDATE(cabac, &(cabac->ctx.qt_cbf_model_luma[luma_ctx]), flag, tr_tree_bits, "cbf_y_search"); + luma_ctx = 2 + flag; } } } @@ -1114,7 +1118,7 @@ static double search_cu( cu_loc_t isp_loc; uvg_get_isp_split_loc(&isp_loc, x, y, cu_width, cu_height, i, split_type); //search_data->best_isp_cbfs |= cbf_is_set(cur_cu->cbf, depth, COLOR_Y) << (i++); - cu_info_t* split_cu = LCU_GET_CU_AT_PX(lcu, isp_loc.x, isp_loc.y); + cu_info_t* split_cu = LCU_GET_CU_AT_PX(lcu, isp_loc.x % LCU_WIDTH, isp_loc.y % LCU_WIDTH); bool cur_cbf = (intra_search.best_isp_cbfs >> i) & 1; cbf_clear(&split_cu->cbf, depth, COLOR_Y); if (cur_cbf) { diff --git a/src/strategies/generic/encode_coding_tree-generic.c b/src/strategies/generic/encode_coding_tree-generic.c index acdfab94..d0c87f4a 100644 --- a/src/strategies/generic/encode_coding_tree-generic.c +++ b/src/strategies/generic/encode_coding_tree-generic.c @@ -126,7 +126,7 @@ void uvg_encode_coeff_nxn_generic(encoder_state_t * const state, last_coeff_x, last_coeff_y, width, - width, + height, color, scan_mode, bits_out);