/****************************************************************************** * * Copyright (C) 2018 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ***************************************************************************** * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore */ /** ****************************************************************************** * @file ihevce_bs_compute_ctb.c * * @brief * This file contains functions needed for boundary strength calculation * * @author * ittiam * * @List of Functions * ihevce_bs_init_ctb() * ihevce_bs_compute_ctb() * ihevce_bs_clear_invalid() * ****************************************************************************** */ /*****************************************************************************/ /* File Includes */ /*****************************************************************************/ /* System include files */ #include #include #include #include #include #include /* User include files */ #include "ihevc_typedefs.h" #include "itt_video_api.h" #include "ihevce_api.h" #include "rc_cntrl_param.h" #include "rc_frame_info_collector.h" #include "rc_look_ahead_params.h" #include "ihevc_defs.h" #include "ihevc_structs.h" #include "ihevc_platform_macros.h" #include "ihevc_deblk.h" #include "ihevc_itrans_recon.h" #include "ihevc_chroma_itrans_recon.h" #include "ihevc_chroma_intra_pred.h" #include "ihevc_intra_pred.h" #include "ihevc_inter_pred.h" #include "ihevc_mem_fns.h" #include "ihevc_padding.h" #include "ihevc_weighted_pred.h" #include "ihevc_sao.h" #include "ihevc_resi_trans.h" #include "ihevc_quant_iquant_ssd.h" #include "ihevc_cabac_tables.h" #include "ihevce_defs.h" #include "ihevce_lap_enc_structs.h" #include "ihevce_multi_thrd_structs.h" #include "ihevce_me_common_defs.h" #include "ihevce_had_satd.h" #include "ihevce_error_codes.h" #include "ihevce_bitstream.h" #include "ihevce_cabac.h" #include "ihevce_rdoq_macros.h" #include "ihevce_function_selector.h" #include "ihevce_enc_structs.h" #include "ihevce_entropy_structs.h" #include "ihevce_cmn_utils_instr_set_router.h" #include "ihevce_enc_loop_structs.h" #include "ihevce_bs_compute_ctb.h" #include "ihevce_global_tables.h" /*****************************************************************************/ /* Global Tables */ /*****************************************************************************/ // clang-format off UWORD16 gau2_bs_table[2][8] = { { BS_INTRA_4, BS_INTRA_8, BS_INVALID, BS_INTRA_16, BS_INVALID, BS_INVALID, BS_INVALID, BS_INTRA_32 }, { BS_CBF_4, BS_CBF_8, BS_INVALID, BS_CBF_16, BS_INVALID, BS_INVALID, BS_INVALID, BS_CBF_32 } }; // clang-format on /*****************************************************************************/ /* Function Definitions */ /*****************************************************************************/ /** ******************************************************************************* * * @brief Initialize the Boundary Strength at a CTB level * * @par Description * Initialize the Boundary Strength at a CTB level to zeros* * * @param[out] ps_deblk_prms * Pointer to structure s_deblk_prms, which contains * s_deblk_prms.au4_horz_bs : max of 8 such conti. bs to be comp. for 64x64 ctb * s_deblk_prms.au4_vert_bs : max of 8 such conti. bs to be comp. for 64x64 ctb * * @param[in] ctb_size * Size in pels (can be 16, 32 or 64) * * @returns none * * @remarks * ******************************************************************************* */ void ihevce_bs_init_ctb( deblk_bs_ctb_ctxt_t *ps_deblk_prms, frm_ctb_ctxt_t *ps_frm_ctb_prms, WORD32 ctb_ctr, WORD32 vert_ctr) { WORD32 ctb_size = ps_frm_ctb_prms->i4_ctb_size; /* Pointer to the array to store the packed BS values in horizontal dir. */ UWORD32 *pu4_horz_bs = &ps_deblk_prms->au4_horz_bs[0]; /* Pointer to the array to store the packed BS values in vertical dir. */ UWORD32 *pu4_vert_bs = &ps_deblk_prms->au4_vert_bs[0]; WORD32 i4_top_ctb_tile_id, i4_left_ctb_tile_id; WORD32 *pi4_tile_id_map_temp; pi4_tile_id_map_temp = ps_frm_ctb_prms->pi4_tile_id_map + vert_ctr * ps_frm_ctb_prms->i4_tile_id_ctb_map_stride + ctb_ctr; i4_left_ctb_tile_id = *(pi4_tile_id_map_temp - 1); i4_top_ctb_tile_id = *(pi4_tile_id_map_temp - ps_frm_ctb_prms->i4_tile_id_ctb_map_stride); ps_deblk_prms->u1_not_first_ctb_row_of_frame = (i4_top_ctb_tile_id != -1); ps_deblk_prms->u1_not_first_ctb_col_of_frame = (i4_left_ctb_tile_id != -1); /* BS should be set to NULL in the following cases Frame boundaries Edges if deblocking is disabled by disable_deblocking_filter_flag Slice boundaries if deblocking across slices is disabled Tile boundaries if deblocking across slices is disabled These are not considered now, except the frame boundary */ /* Initializing the bs array to 0. array size = (ctb_size/8 + 1)*4 bytes */ memset(pu4_horz_bs, 0, ((ctb_size >> 3) + 1) * sizeof(UWORD32)); memset(pu4_vert_bs, 0, ((ctb_size >> 3) + 1) * sizeof(UWORD32)); } /** ******************************************************************************* * * @brief Calculate the Boundary Strength at CU level * * @par Description * Calculate the Boundary Strength at CU level * * @param[in] ps_cu_final * Pointer to the final CU structure, of which we use the following values * u2_num_tus_in_cu : Total TUs in this CU * ps_enc_tu : Pointer to first tu of this cu. Each TU need to be * populated in TU order. * u4_pred_mode_flag : The prediction mode flag for the CU * cu_size : CU size in terms of min CU (8x8) units * cu_pos_x : X Position of CU in current ctb * cu_pos_y : Y Position of CU in current ctb * u4_part_mode : Partition information for CU. For inter 0 : @sa PART_SIZE_E * ps_pu : Pointer to first pu of this cu * * @param[in] ps_top_nbr_4x4 * Pointer to top 4x4 CU nbr structure * * @param[in] ps_left_nbr_4x4 * Pointer to left 4x4 CU nbr structure * * @param[in] ps_curr_nbr_4x4 * Pointer to current 4x4 ctb structure * * @param[in] nbr_4x4_left_strd * Left nbr buffer stride in terms of 4x4 units * * @param[in] num_4x4_in_ctb * Current buffer stride in terms of 4x4 units * * @param[out] ps_deblk_prms * Pointer to structure s_deblk_prms, which contains * s_deblk_prms.au4_horz_bs : max of 8 such conti. bs to be comp. for 64x64 ctb * s_deblk_prms.au4_vert_bs : max of 8 such conti. bs to be comp. for 64x64 ctb * * @returns none * * @remarks * 1 : Setting all 4 edges for a TU or PU block. Which is inefficient in * a) may set the BS twice b) set the frame/slice boundaries * 2 : always update BS using bit-wise OR, which may set BS to 3 also. * ( Deblocking should take care of it as 2 itself ) * ******************************************************************************* */ void ihevce_bs_compute_cu( cu_enc_loop_out_t *ps_cu_final, nbr_4x4_t *ps_top_nbr_4x4, nbr_4x4_t *ps_left_nbr_4x4, nbr_4x4_t *ps_curr_nbr_4x4, WORD32 nbr_4x4_left_strd, WORD32 num_4x4_in_ctb, deblk_bs_ctb_ctxt_t *ps_deblk_prms) { WORD32 i; WORD32 j; /* copy required arguments from pointer to CU structure */ /* Total TUs in this CU */ UWORD16 u2_num_tus_in_cu = ps_cu_final->u2_num_tus_in_cu; /* Pointer to first tu of this cu */ tu_enc_loop_out_t *ps_enc_tu = ps_cu_final->ps_enc_tu; /* The prediction mode flag for the CU */ UWORD32 u4_pred_mode_flag = ps_cu_final->b1_pred_mode_flag; /* X Position of CU in current ctb in (8x8) units */ WORD32 cu_pos_x = ps_cu_final->b3_cu_pos_x; /* Y Position of CU in current ctb in (8x8) units */ WORD32 cu_pos_y = ps_cu_final->b3_cu_pos_y; /* Indicates partition information for CU */ UWORD32 u4_part_mode = ps_cu_final->b3_part_mode; /* Pointer to first pu of this cu */ pu_t *ps_pu = ps_cu_final->ps_pu; /* Number of pus in current cu */ WORD32 num_pus_in_cu; /* Pointer to the array to store the packed BS values in horizontal dir. */ UWORD32 *pu4_horz_bs = &ps_deblk_prms->au4_horz_bs[0]; /* Pointer to the array to store the packed BS values in vertical dir. */ UWORD32 *pu4_vert_bs = &ps_deblk_prms->au4_vert_bs[0]; (void)ps_curr_nbr_4x4; (void)num_4x4_in_ctb; /* CTB boundary case setting the BS for intra and cbf non zero case for CU top edge */ if((ps_deblk_prms->u1_not_first_ctb_row_of_frame) && (0 == ps_cu_final->b3_cu_pos_y)) { nbr_4x4_t *ps_nbr_4x4; UWORD32 u4_temp_bs = *pu4_horz_bs; WORD32 horz_bit_offset; WORD32 ctr; /* every 4x4 takes 2 bits in the register this is taken care in the loop */ /* deriving 4x4 position */ horz_bit_offset = (ps_cu_final->b3_cu_pos_x << 3) >> 2; /* scanning through each 4x4 csb along horizontal direction */ for(ctr = 0; ctr < ((ps_cu_final->b4_cu_size << 3) >> 2); ctr++) { ps_nbr_4x4 = ps_top_nbr_4x4 + ctr; if(ps_nbr_4x4->b1_intra_flag) { /* To store in BigEnd. format. BS[0]|BS[1]| .. |BS[15] */ u4_temp_bs = (u4_temp_bs | (2U << (30 - 2 * (ctr + horz_bit_offset)))); } else if(ps_nbr_4x4->b1_y_cbf) { /* To store in BigEnd. format. BS[0]|BS[1]| .. |BS[15] */ u4_temp_bs = (u4_temp_bs | (1 << (30 - 2 * (ctr + horz_bit_offset)))); } } /* storing the BS computed for first row based on top ctb CUs */ *(pu4_horz_bs) = u4_temp_bs; } /* CTB boundary case setting the BS for intra and cbf non zero case for CU left edge */ if((ps_deblk_prms->u1_not_first_ctb_col_of_frame) && (0 == ps_cu_final->b3_cu_pos_x)) { nbr_4x4_t *ps_nbr_4x4; UWORD32 u4_temp_bs = *pu4_vert_bs; WORD32 vert_bit_offset; WORD32 ctr; /* every 4x4 takes 2 bits in the register this is taken care in the loop */ /* deriving 4x4 position */ vert_bit_offset = (ps_cu_final->b3_cu_pos_y << 3) >> 2; /* scanning through each 4x4 csb along vertical direction */ for(ctr = 0; ctr < ((ps_cu_final->b4_cu_size << 3) >> 2); ctr++) { ps_nbr_4x4 = ps_left_nbr_4x4 + ctr * nbr_4x4_left_strd; if(ps_nbr_4x4->b1_intra_flag) { /* To store in BigEnd. format. BS[0]|BS[1]| .. |BS[15] */ u4_temp_bs = (u4_temp_bs | (2U << (30 - 2 * (ctr + vert_bit_offset)))); } else if(ps_nbr_4x4->b1_y_cbf) { /* To store in BigEnd. format. BS[0]|BS[1]| .. |BS[15] */ u4_temp_bs = (u4_temp_bs | (1 << (30 - 2 * (ctr + vert_bit_offset)))); } } /* storing the BS computed for first col based on left ctb Cus */ *(pu4_vert_bs) = u4_temp_bs; } /* Passes through each TU inside the CU */ for(i = 0; i < u2_num_tus_in_cu; i++) { UWORD32 u4_tu_pos_x, u4_tu_pos_y; UWORD32 u4_tu_size; UWORD32 *pu4_tu_top_edge; UWORD32 *pu4_tu_bottom_edge; UWORD32 *pu4_tu_left_edge; UWORD32 *pu4_tu_right_edge; UWORD32 u4_bs_value; WORD32 set_bs_flag = 0; WORD32 tbl_idx = 1; /* TU_size calculation */ u4_tu_size = 1 << ((ps_enc_tu->s_tu.b3_size) + 2); /* TU X position in terms of min TU (4x4) units wrt ctb */ u4_tu_pos_x = ps_enc_tu->s_tu.b4_pos_x; /* TU Y position in terms of min TU (4x4) units wrt ctb */ u4_tu_pos_y = ps_enc_tu->s_tu.b4_pos_y; /* pointers to the edges of current TU */ pu4_tu_top_edge = pu4_horz_bs + (u4_tu_pos_y >> 1); pu4_tu_bottom_edge = pu4_horz_bs + ((u4_tu_pos_y + 1) >> 1) + (u4_tu_size >> 3); pu4_tu_left_edge = pu4_vert_bs + (u4_tu_pos_x >> 1); pu4_tu_right_edge = pu4_vert_bs + ((u4_tu_pos_x + 1) >> 1) + (u4_tu_size >> 3); /* chooose the table index based on pred_mode */ if(PRED_MODE_INTRA == u4_pred_mode_flag) { tbl_idx = 0; } /* get the BS value from table if required */ if((ps_enc_tu->s_tu.b1_y_cbf) || (PRED_MODE_INTRA == u4_pred_mode_flag)) { set_bs_flag = 1; u4_bs_value = gau2_bs_table[tbl_idx][(u4_tu_size >> 2) - 1]; } if(1 == set_bs_flag) { /* Store the BS value */ if(4 == u4_tu_size) { if(0 == (u4_tu_pos_y & 1)) { /* Only top TU edge came on a 8 pixel bounadey */ SET_VALUE_BIG((pu4_tu_top_edge), u4_bs_value, u4_tu_pos_x, u4_tu_size); } else { /* Only bottom TU edge came on a 8 pixel bounadey */ SET_VALUE_BIG((pu4_tu_bottom_edge), u4_bs_value, u4_tu_pos_x, u4_tu_size); } if(0 == (u4_tu_pos_x & 1)) { /* Only left TU edge came on a 8 pixel bounadey */ SET_VALUE_BIG((pu4_tu_left_edge), u4_bs_value, u4_tu_pos_y, u4_tu_size); } else { /* Only right TU edge came on a 8 pixel bounadey */ SET_VALUE_BIG((pu4_tu_right_edge), u4_bs_value, u4_tu_pos_y, u4_tu_size); } } /* set all edges for other TU sizes */ else { /* setting top TU edge */ SET_VALUE_BIG((pu4_tu_top_edge), u4_bs_value, u4_tu_pos_x, u4_tu_size); /* setting bottom TU edge */ SET_VALUE_BIG((pu4_tu_bottom_edge), u4_bs_value, u4_tu_pos_x, u4_tu_size); /* setting left TU edge */ SET_VALUE_BIG((pu4_tu_left_edge), u4_bs_value, u4_tu_pos_y, u4_tu_size); /* setting right TU edge */ SET_VALUE_BIG((pu4_tu_right_edge), u4_bs_value, u4_tu_pos_y, u4_tu_size); } } /* point to next TU inside CU in TU order */ ps_enc_tu++; } if(PRED_MODE_INTRA == u4_pred_mode_flag) { /* no mv based BS computation in INTRA case */ return; } /* BS update due to PU mv.s */ if(u4_part_mode == SIZE_2Nx2N) /* symmetric motion partition, 2Nx2N */ { num_pus_in_cu = 1; } else if(u4_part_mode == SIZE_NxN) /* symmetric motion partition, NxN */ { num_pus_in_cu = 4; } else /* other sym. or asym. partiotions */ { num_pus_in_cu = 2; } /* Go through each PU inside CU in PU order and set the top & bottom */ /* PU edge BS accordingly */ for(i = 0; i < num_pus_in_cu; i++) { WORD32 k; /* X Position of PU in terms of min PU (4x4) units in current ctb */ WORD32 pu_pos_x = ps_pu->b4_pos_x; /* Y Position of PU in terms of min PU (4x4) units in current ctb */ WORD32 pu_pos_y = ps_pu->b4_pos_y; /* PU width in 4 pixel unit */ WORD32 pu_wd = (ps_pu->b4_wd) + 1; /* PU height in 4 pixel unit */ WORD32 pu_ht = (ps_pu->b4_ht) + 1; /* Pred L0 flag */ WORD32 cur_pred_l0_flag; /* pointer to current PU */ nbr_4x4_t *ps_curr_nbr_4x4_pu; /* go through each 4x4 block along the PU edges and do BS calculation */ /* can optimize further with proper checks according to PU size */ /* but in that case also @CTB boundary, we should go by 4x4 nbr.s only*/ /* load cur. PU parameters */ WORD8 i1_cur_l0_ref_pic_buf_id, i1_cur_l1_ref_pic_buf_id; WORD32 cur_mv_no; WORD16 i2_mv_x0, i2_mv_y0, i2_mv_x1, i2_mv_y1; ps_curr_nbr_4x4_pu = ps_curr_nbr_4x4 + (pu_pos_x - (cu_pos_x << 1)) + (pu_pos_y - (cu_pos_y << 1)) * num_4x4_in_ctb; cur_pred_l0_flag = ps_curr_nbr_4x4_pu->b1_pred_l0_flag; /* L0 & L1 unique ref. pic. id for cur. PU, (stored in upper 4 bits) */ i1_cur_l0_ref_pic_buf_id = (ps_curr_nbr_4x4_pu->mv.i1_l0_ref_pic_buf_id); i1_cur_l1_ref_pic_buf_id = (ps_curr_nbr_4x4_pu->mv.i1_l1_ref_pic_buf_id); /* Number of motion vectors used for cur. PU */ cur_mv_no = cur_pred_l0_flag + ps_curr_nbr_4x4_pu->b1_pred_l1_flag; /* x and y mv for L0 and L1, for cur. PU */ i2_mv_x0 = ps_curr_nbr_4x4_pu->mv.s_l0_mv.i2_mvx; i2_mv_y0 = ps_curr_nbr_4x4_pu->mv.s_l0_mv.i2_mvy; i2_mv_x1 = ps_curr_nbr_4x4_pu->mv.s_l1_mv.i2_mvx; i2_mv_y1 = ps_curr_nbr_4x4_pu->mv.s_l1_mv.i2_mvy; /* two cases for updating TOP and LEFT edges respectively */ /* k = 0 : TOP edge update, k = 1 : LEFT edge update */ for(k = 0; k < 2; k++) { WORD32 pu_pos_pointer_calc, pu_pos_bit_calc; UWORD32 *pu4_pu_cur_edge; WORD32 pu_dim, nbr_inc; nbr_4x4_t *ps_nbr_4x4; /* TOP edge case */ if(0 == k) { pu_pos_pointer_calc = pu_pos_y; pu_pos_bit_calc = pu_pos_x; pu4_pu_cur_edge = pu4_horz_bs + (pu_pos_y >> 1); pu_dim = pu_wd; /* top neighbours are accessed linearly */ nbr_inc = 1; /* If the current 4x4 csb is in the first row of CTB */ if(0 == pu_pos_pointer_calc) { /* then need to check if top CTB is physically available */ /* (slice bound. are considered as availabale) */ if(ps_deblk_prms->u1_not_first_ctb_row_of_frame) { ps_nbr_4x4 = ps_top_nbr_4x4 + (nbr_inc * (pu_pos_x - (cu_pos_x << 1))); } else { /* This is done for avoiding uninitialized memory access at pic. boundaries*/ ps_nbr_4x4 = ps_curr_nbr_4x4_pu; } } /* within ctb, so top neighbour is available */ else { ps_nbr_4x4 = ps_curr_nbr_4x4_pu - num_4x4_in_ctb; } } /* LEFT edge case */ else { pu_pos_pointer_calc = pu_pos_x; pu_pos_bit_calc = pu_pos_y; pu4_pu_cur_edge = pu4_vert_bs + (pu_pos_x >> 1); pu_dim = pu_ht; /* left neighbours are accessed using stride */ nbr_inc = nbr_4x4_left_strd; /* If the current 4x4 csb is in the first col of CTB */ if(0 == pu_pos_pointer_calc) { /* then need to check if left CTB is available */ if(ps_deblk_prms->u1_not_first_ctb_col_of_frame) { ps_nbr_4x4 = ps_left_nbr_4x4 + (nbr_inc * (pu_pos_y - (cu_pos_y << 1))); } else { /* This is done for avoiding uninitialized memory access at pic. boundaries*/ ps_nbr_4x4 = ps_curr_nbr_4x4_pu; nbr_inc = num_4x4_in_ctb; } } /* within ctb, so left neighbour is available */ else { ps_nbr_4x4 = ps_curr_nbr_4x4_pu - 1; nbr_inc = num_4x4_in_ctb; } } /* Only if the current edge falls on 8 pixel grid and ... */ if(0 == (pu_pos_pointer_calc & 1)) { /* go through the edge in 4x4 unit. Can be optimized */ /* In that case special case for CTB boundary */ for(j = 0; j < pu_dim; j++) { //nbr_4x4_t *ps_temp_nbr_4x4; /* ... and if the BS not set yet */ if(0 == EXTRACT_VALUE_BIG(pu4_pu_cur_edge, (pu_pos_bit_calc + j))) { WORD8 i1_nbr_l0_ref_pic_buf_id, i1_nbr_l1_ref_pic_buf_id; WORD32 nbr_mv_no; WORD32 bs_flag = 0; WORD32 nbr_pred_l0_flag = ps_nbr_4x4->b1_pred_l0_flag; /* L0 & L1 unique ref. pic. id for nbr. csb, in upper 4 bits */ i1_nbr_l0_ref_pic_buf_id = (ps_nbr_4x4->mv.i1_l0_ref_pic_buf_id); i1_nbr_l1_ref_pic_buf_id = (ps_nbr_4x4->mv.i1_l1_ref_pic_buf_id); /* Number of motion vectors used */ nbr_mv_no = nbr_pred_l0_flag + ps_nbr_4x4->b1_pred_l1_flag; /* If diff. no. of motion vectors used */ if(cur_mv_no != nbr_mv_no) { bs_flag = 1; } /* If One motion vector is used */ else if(1 == cur_mv_no) { WORD16 i2_mv_x, i2_mv_y; if(cur_pred_l0_flag) { /* L0 used for cur. */ if(nbr_pred_l0_flag) { /* L0 used for nbr. */ if(i1_cur_l0_ref_pic_buf_id != i1_nbr_l0_ref_pic_buf_id) { /* reference pictures used are different */ bs_flag = 1; } } else { /* L1 used for nbr. */ if(i1_cur_l0_ref_pic_buf_id != i1_nbr_l1_ref_pic_buf_id) { /* reference pictures used are different */ bs_flag = 1; } } if(!bs_flag) { i2_mv_x = i2_mv_x0; i2_mv_y = i2_mv_y0; } } else { /* L1 used for cur. */ if(nbr_pred_l0_flag) { /* L0 used for nbr. */ if(i1_cur_l1_ref_pic_buf_id != i1_nbr_l0_ref_pic_buf_id) { /* reference pictures used are different */ bs_flag = 1; } } else { /* L1 used for nbr. */ if(i1_cur_l1_ref_pic_buf_id != i1_nbr_l1_ref_pic_buf_id) { /* reference pictures used are different */ bs_flag = 1; } } if(!bs_flag) { i2_mv_x = i2_mv_x1; i2_mv_y = i2_mv_y1; } } if(!bs_flag) { WORD16 i2_nbr_mv_x, i2_nbr_mv_y; if(nbr_pred_l0_flag) { i2_nbr_mv_x = ps_nbr_4x4->mv.s_l0_mv.i2_mvx; i2_nbr_mv_y = ps_nbr_4x4->mv.s_l0_mv.i2_mvy; } else { i2_nbr_mv_x = ps_nbr_4x4->mv.s_l1_mv.i2_mvx; i2_nbr_mv_y = ps_nbr_4x4->mv.s_l1_mv.i2_mvy; } // clang-format off bs_flag = (abs(i2_mv_x - i2_nbr_mv_x) < 4) && (abs(i2_mv_y - i2_nbr_mv_y) < 4) ? 0 : 1; // clang-format on } } /* If two motion vectors are used */ else if(2 == cur_mv_no) { /* check whether same reference pictures used */ if((i1_cur_l0_ref_pic_buf_id == i1_nbr_l0_ref_pic_buf_id && i1_cur_l1_ref_pic_buf_id == i1_nbr_l1_ref_pic_buf_id) || (i1_cur_l0_ref_pic_buf_id == i1_nbr_l1_ref_pic_buf_id && i1_cur_l1_ref_pic_buf_id == i1_nbr_l0_ref_pic_buf_id)) { WORD16 i2_nbr_mv_x0, i2_nbr_mv_y0, i2_nbr_mv_x1, i2_nbr_mv_y1; /* x and y mv for L0 and L1, for nbr. csb*/ i2_nbr_mv_x0 = ps_nbr_4x4->mv.s_l0_mv.i2_mvx; i2_nbr_mv_y0 = ps_nbr_4x4->mv.s_l0_mv.i2_mvy; i2_nbr_mv_x1 = ps_nbr_4x4->mv.s_l1_mv.i2_mvx; i2_nbr_mv_y1 = ps_nbr_4x4->mv.s_l1_mv.i2_mvy; /* Different L0 and L1 */ if(i1_cur_l0_ref_pic_buf_id != i1_cur_l1_ref_pic_buf_id) { if(i1_cur_l0_ref_pic_buf_id == i1_nbr_l0_ref_pic_buf_id) { // clang-format off bs_flag = (abs(i2_mv_x0 - i2_nbr_mv_x0) < 4) && (abs(i2_mv_y0 - i2_nbr_mv_y0) < 4) && (abs(i2_mv_x1 - i2_nbr_mv_x1) < 4) && (abs(i2_mv_y1 - i2_nbr_mv_y1) < 4) ? 0 : 1; // clang-format on } else { // clang-format off bs_flag = (abs(i2_mv_x0 - i2_nbr_mv_x1) < 4) && (abs(i2_mv_y0 - i2_nbr_mv_y1) < 4) && (abs(i2_mv_x1 - i2_nbr_mv_x0) < 4) && (abs(i2_mv_y1 - i2_nbr_mv_y0) < 4) ? 0 : 1; // clang-format on } } else /* Same L0 and L1 */ { // clang-format off bs_flag = ((abs(i2_mv_x0 - i2_nbr_mv_x0) >= 4) || (abs(i2_mv_y0 - i2_nbr_mv_y0) >= 4) || (abs(i2_mv_x1 - i2_nbr_mv_x1) >= 4) || (abs(i2_mv_y1 - i2_nbr_mv_y1) >= 4)) && ((abs(i2_mv_x0 - i2_nbr_mv_x1) >= 4) || (abs(i2_mv_y0 - i2_nbr_mv_y1) >= 4) || (abs(i2_mv_x1 - i2_nbr_mv_x0) >= 4) || (abs(i2_mv_y1 - i2_nbr_mv_y0) >= 4)) ? 1 : 0; // clang-format on } } else /* If the reference pictures used are different */ { bs_flag = 1; } } if(bs_flag) { /*Storing if BS set due to PU mvs */ /*Storing in BigEnd. format. BS[0]|BS[1]| .. |BS[15] & edge_size is 4*/ SET_VALUE_BIG((pu4_pu_cur_edge), BS_CBF_4, (pu_pos_bit_calc + j), 4); } } /* increment the neighbour */ ps_nbr_4x4 += nbr_inc; } } } /* point to the next PU */ ps_pu++; } } /** ******************************************************************************* * * @brief Clear the invalid Boundary Strength which may be set by * ihevce_bs_compute_cu * * @par Description * Clear the invalid Boundary Strength which may be set by ihevce_bs_compute_cu * (as it does all 4 edges in a shot for some cases) * * @param[out] ps_deblk_prms * Pointer to structure s_deblk_prms, which contains * s_deblk_prms.au4_horz_bs : max of 8 such conti. bs to be comp. for 64x64 ctb * s_deblk_prms.au4_vert_bs : max of 8 such conti. bs to be comp. for 64x64 ctb * * @param[in] last_ctb_row_flag * Flag for checking whether the current CTB is in last ctb_row * * @param[in] last_ctb_in_row_flag * Flag for checking whether the current CTB is the last in current row * * @param[in] last_hz_ctb_wd * Valid Width (pixels) in the last CTB in every row (padding cases) * * @param[in] last_vt_ctb_ht * Valid Height (pixels) in the last CTB row (padding cases) * * @returns none * * @remarks * ******************************************************************************* */ void ihevce_bs_clear_invalid( deblk_bs_ctb_ctxt_t *ps_deblk_prms, WORD32 last_ctb_row_flag, WORD32 last_ctb_in_row_flag, WORD32 last_hz_ctb_wd, WORD32 last_vt_ctb_ht) { /* Rightmost CTB. Right padding may be there */ /* clear the last vert BS which might have set by ihevce_bs_compute_cu */ if(1 == last_ctb_in_row_flag) { ps_deblk_prms->au4_vert_bs[last_hz_ctb_wd >> 3] = 0; } /* Bottommost CTB. Bottom padding may be there */ /* clear the last horz BS which might have set by ihevce_bs_compute_cu */ if(1 == last_ctb_row_flag) { ps_deblk_prms->au4_horz_bs[last_vt_ctb_ht >> 3] = 0; } }