/****************************************************************************** * * Copyright (C) 2022 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 * isvcd_parse_ebslice.c * * @brief * Contains routines that decode a I slice type * * @author * Kishore * * @par List of Functions: * - isvcd_parse_bmb_cabac() * - isvcd_mv_pred_ref_tfr_nby2_ebmb() * - isvcd_parse_bmb_cavlc() * - isvcd_parse_bmb_non_direct_cabac() * - isvcd_parse_bmb_non_direct_cavlc() * - isvcd_parse_ebslice() * - isvcd_parse_bslice() * * @remarks * None * ******************************************************************************* */ #include #include #include "ih264_defs.h" #include "ih264d_bitstrm.h" #include "ih264d_defs.h" #include "ih264d_debug.h" #include "ih264d_tables.h" #include "isvcd_structs.h" #include "ih264d_parse_cavlc.h" #include "ih264d_mb_utils.h" #include "ih264d_parse_slice.h" #include "ih264d_process_intra_mb.h" #include "ih264d_mvpred.h" #include "ih264d_parse_islice.h" #include "ih264d_inter_pred.h" #include "ih264d_process_pslice.h" #include "isvcd_process_epslice.h" #include "ih264d_process_bslice.h" #include "ih264d_deblocking.h" #include "ih264d_cabac.h" #include "ih264d_parse_mb_header.h" #include "ih264d_error_handler.h" #include "ih264d_mvpred.h" #include "ih264d_cabac.h" #include "ih264d_utils.h" #include "ih264d_parse_headers.h" #include "isvcd_parse_headers.h" #include "isvcd_process_ebslice.h" #include "isvcd_parse_slice.h" #include "ih264_debug.h" #include "isvcd_parse_cavlc.h" #include "isvcd_mb_utils.h" void ih264d_init_cabac_contexts(UWORD8 u1_slice_type, dec_struct_t *ps_dec); void isvcd_init_cabac_contexts(UWORD8 u1_slice_type, dec_struct_t *ps_dec); void ih264d_get_implicit_weights(dec_struct_t *ps_dec); WORD32 isvcd_interlyr_motion_mode_pred(svc_dec_lyr_struct_t *ps_svc_lyr_dec, dec_mb_info_t *ps_cur_mb_info, dec_svc_mb_info_t *ps_svc_cur_mb_info, parse_pmbarams_t *ps_mb_part_info, parse_part_params_t *ps_part); /*! ************************************************************************** * \if Function name : isvcd_parse_bmb_cabac \endif * * \brief * This function parses CABAC syntax of a B MB. * * \return * 0 on Success and Error code otherwise ************************************************************************** */ WORD32 isvcd_parse_bmb_cabac(svc_dec_lyr_struct_t *ps_svc_lyr_dec, dec_mb_info_t *ps_cur_mb_info, dec_svc_mb_info_t *ps_svc_cur_mb_info, UWORD8 u1_mb_num, UWORD8 u1_num_mbsNby2) { UWORD8 u1_cbp = 0; dec_struct_t *ps_dec = &ps_svc_lyr_dec->s_dec; deblk_mb_t *ps_cur_deblk_mb = ps_dec->ps_deblk_mbn + u1_mb_num; const UWORD8 *puc_mb_mc_mode = (const UWORD8 *) gau1_ih264d_mb_mc_mode; UWORD8 u1_mb_type = ps_cur_mb_info->u1_mb_type; ctxt_inc_mb_info_t *p_curr_ctxt = ps_dec->ps_curr_ctxt_mb_info; dec_bit_stream_t *ps_bitstrm = ps_dec->ps_bitstrm; decoding_envirnoment_t *ps_cab_env = &ps_dec->s_cab_dec_env; WORD32 ret; UWORD8 u1_Bdirect_tranform_read = 1; dec_slice_svc_ext_params_t *ps_svc_slice_params = NULL; ps_svc_slice_params = &ps_svc_lyr_dec->s_svc_slice_params; ps_dec->s_high_profile.u1_no_submb_part_size_lt8x8_flag = 1; ps_cur_mb_info->u1_mb_mc_mode = puc_mb_mc_mode[5 + u1_mb_type]; ps_cur_mb_info->u1_yuv_dc_block_flag = 0; ps_cur_deblk_mb->u1_mb_type |= D_B_SLICE; if(u1_mb_type != B_DIRECT) { ret = isvcd_parse_bmb_non_direct_cabac(ps_svc_lyr_dec, ps_cur_mb_info, ps_svc_cur_mb_info, u1_mb_num, u1_num_mbsNby2); if(ret != OK) return ret; } else { /************ STORING PARTITION INFO ***********/ parse_part_params_t *ps_part_info; ps_part_info = ps_dec->ps_part; ps_part_info->u1_is_direct = PART_DIRECT_16x16; ps_part_info->u1_sub_mb_num = 0; ps_dec->ps_part++; p_curr_ctxt->u1_mb_type = CAB_BD16x16; MEMSET_16BYTES(&ps_dec->pu1_left_mv_ctxt_inc[0][0], 0); memset(ps_dec->pi1_left_ref_idx_ctxt_inc, 0, 4); MEMSET_16BYTES(p_curr_ctxt->u1_mv, 0); memset(p_curr_ctxt->i1_ref_idx, 0, 4); /* check whether transform8x8 u4_flag to be read or not */ u1_Bdirect_tranform_read = ps_dec->s_high_profile.u1_direct_8x8_inference_flag; } if(ps_svc_slice_params->u1_adaptive_residual_prediction_flag && ps_svc_cur_mb_info->u1_crop_window_flag) { ps_svc_cur_mb_info->u1_residual_prediction_flag = ih264d_decode_bin( 1, ps_svc_lyr_dec->ps_residual_prediction_flag, ps_bitstrm, ps_cab_env); COPYTHECONTEXT("SVC ext: u1_residual_prediction_flag", ps_svc_cur_mb_info->u1_residual_prediction_flag); } else { /*residual flag inference code */ if(1 == ps_svc_cur_mb_info->u1_crop_window_flag && 1 == ps_svc_cur_mb_info->u1_base_mode_flag) { ps_svc_cur_mb_info->u1_residual_prediction_flag = ps_svc_slice_params->u1_default_residual_prediction_flag; } else { ps_svc_cur_mb_info->u1_residual_prediction_flag = 0; } } if(ps_svc_slice_params->u1_scan_idx_end >= ps_svc_slice_params->u1_scan_idx_start) { /* Read the Coded block pattern */ u1_cbp = (WORD8) ih264d_parse_ctx_cbp_cabac(ps_dec); p_curr_ctxt->u1_cbp = u1_cbp; ps_cur_mb_info->u1_cbp = u1_cbp; if(u1_cbp > 47) return ERROR_CBP; COPYTHECONTEXT("coded_block_pattern", u1_cbp); ps_cur_mb_info->u1_tran_form8x8 = 0; ps_cur_mb_info->ps_curmb->u1_tran_form8x8 = 0; if((ps_dec->s_high_profile.u1_transform8x8_present) && (u1_cbp & (0xf)) && (ps_dec->s_high_profile.u1_no_submb_part_size_lt8x8_flag) && (u1_Bdirect_tranform_read)) { ps_cur_mb_info->u1_tran_form8x8 = ih264d_parse_transform8x8flag_cabac(ps_dec, ps_cur_mb_info); COPYTHECONTEXT("transform_size_8x8_flag", ps_cur_mb_info->u1_tran_form8x8); ps_cur_mb_info->ps_curmb->u1_tran_form8x8 = ps_cur_mb_info->u1_tran_form8x8; p_curr_ctxt->u1_transform8x8_ctxt = ps_cur_mb_info->u1_tran_form8x8; } else { p_curr_ctxt->u1_transform8x8_ctxt = 0; } } p_curr_ctxt->u1_intra_chroma_pred_mode = 0; p_curr_ctxt->u1_yuv_dc_csbp &= 0xFE; ps_dec->pu1_left_yuv_dc_csbp[0] &= 0x6; /* Read mb_qp_delta */ if(u1_cbp) { WORD8 c_temp; ret = ih264d_parse_mb_qp_delta_cabac(ps_dec, &c_temp); if(ret != OK) return ret; COPYTHECONTEXT("mb_qp_delta", c_temp); if(c_temp) { ret = ih264d_update_qp(ps_dec, c_temp); if(ret != OK) return ret; } } else ps_dec->i1_prev_mb_qp_delta = 0; /*RESIDUAL FOR Start to end idx*/ ih264d_parse_residual4x4_cabac(ps_dec, ps_cur_mb_info, 0); if(EXCEED_OFFSET(ps_dec->ps_bitstrm)) return ERROR_EOB_TERMINATE_T; return OK; } /*! ************************************************************************** * \if Function name : isvcd_mv_pred_ref_tfr_nby2_ebmb \endif * * \brief * This function computes the mv pred for b frame * * \return * 0 on Success and Error code otherwise ************************************************************************** */ WORD32 isvcd_mv_pred_ref_tfr_nby2_ebmb(dec_struct_t *ps_dec, UWORD8 u1_mb_idx, UWORD8 u1_num_mbs) { svc_dec_lyr_struct_t *ps_svc_lyr_dec = (svc_dec_lyr_struct_t *) ps_dec; parse_pmbarams_t *ps_mb_part_info; parse_part_params_t *ps_part; mv_pred_t *ps_mv_nmb, *ps_mv_nmb_start, *ps_mv_ntop, *ps_mv_ntop_start; pic_buffer_t *ps_ref_frame; UWORD8 u1_direct_mode_width; UWORD8 i, j; dec_mb_info_t *ps_cur_mb_info; dec_svc_mb_info_t *ps_svc_cur_mb_info; const UWORD8 u1_mbaff = ps_dec->ps_cur_slice->u1_mbaff_frame_flag; UWORD8 u1_field; WORD32 ret = 0; WORD16 i2_mv_x, i2_mv_y; ps_dec->i4_submb_ofst -= (u1_num_mbs - u1_mb_idx) << 4; ps_mb_part_info = ps_dec->ps_parse_mb_data; ps_part = ps_dec->ps_parse_part_params; /* N/2 Mb MvPred and Transfer Setup Loop */ for(i = u1_mb_idx; i < u1_num_mbs; i++, ps_mb_part_info++) { UWORD8 u1_colz = 0; ps_dec->i4_submb_ofst += SUB_BLK_SIZE; /* Restore the slice scratch MbX and MbY context */ ps_cur_mb_info = ps_dec->ps_nmb_info + i; ps_svc_cur_mb_info = ps_svc_lyr_dec->ps_svc_nmb_info + i; u1_field = ps_cur_mb_info->u1_mb_field_decodingflag; ps_mv_nmb_start = ps_dec->ps_mv_cur + (i << 4); ps_dec->u2_mbx = ps_cur_mb_info->u2_mbx; ps_dec->u2_mby = ps_cur_mb_info->u2_mby; ps_dec->u1_currB_type = 0; ps_dec->u2_mv_2mb[i & 0x1] = 0; /* Look for MV Prediction and Reference Transfer in Non-I Mbs */ if(!ps_mb_part_info->u1_isI_mb) { UWORD8 u1_blk_no; WORD16 i1_ref_idx, i1_ref_idx1; UWORD8 u1_pred_mode; UWORD8 u1_sub_mb_x, u1_sub_mb_y, u1_sub_mb_num; UWORD8 u1_lx, u1_lx_start, u1_lxend, u1_tmp_lx; UWORD8 u1_num_part, u1_num_ref, u1_wd, u1_ht; UWORD32 *pu4_wt_offst; UWORD8 u1_scale_ref, u4_bot_mb; deblk_mb_t *ps_cur_deblk_mb = ps_dec->ps_deblk_mbn + i; WORD8(*pi1_ref_idx)[MAX_REFIDX_INFO_PER_MB] = ps_mb_part_info->i1_ref_idx; WORD8 *pi1_ref_idx0 = pi1_ref_idx[0], *pi1_ref_idx1 = pi1_ref_idx[1]; UWORD32 **ppu4_wt_ofst = ps_mb_part_info->pu4_wt_offst; WORD32 i4_mb_mode_svc; UWORD8 u1_motion_pred_flag_l0 = ps_svc_cur_mb_info->au1_motion_pred_flag[0]; UWORD8 u1_motion_pred_flag_l1 = ps_svc_cur_mb_info->au1_motion_pred_flag[1]; /* MB Level initialisations */ ps_dec->u4_num_pmbair = i >> u1_mbaff; ps_dec->u1_mb_idx_mv = i; i4_mb_mode_svc = isvcd_interlyr_motion_mode_pred( ps_svc_lyr_dec, ps_cur_mb_info, ps_svc_cur_mb_info, ps_mb_part_info, ps_part); if((-1 == i4_mb_mode_svc) || (SVC_INTER_MB == i4_mb_mode_svc)) { ps_mv_ntop_start = ps_mv_nmb_start - (ps_dec->u2_frm_wd_in_mbs << (4 + u1_mbaff)) + 12; u1_num_part = ps_mb_part_info->u1_num_part; ps_cur_deblk_mb->u1_mb_type |= (u1_num_part > 1) << 1; u1_direct_mode_width = (1 == ps_mb_part_info->u1_num_part) ? 16 : 8; ps_cur_mb_info->u4_pred_info_pkd_idx = ps_dec->u4_pred_info_pkd_idx; ps_cur_mb_info->u1_num_pred_parts = 0; /****************************************************/ /* weighted u4_ofst pointer calculations, this loop */ /* runs maximum 4 times, even in direct cases */ /****************************************************/ u1_scale_ref = u1_mbaff & ps_cur_mb_info->u1_mb_field_decodingflag; u4_bot_mb = 1 - ps_cur_mb_info->u1_topmb; if(ps_dec->ps_cur_pps->u1_wted_bipred_idc) { u1_num_ref = MIN(u1_num_part, 4); if(PART_DIRECT_16x16 != ps_part->u1_is_direct) { for(u1_blk_no = 0; u1_blk_no < u1_num_ref; u1_blk_no++) { i1_ref_idx = MAX(pi1_ref_idx0[u1_blk_no], 0); if(u1_scale_ref) i1_ref_idx >>= 1; i1_ref_idx *= ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1]; if(u1_scale_ref) i1_ref_idx += (MAX(pi1_ref_idx1[u1_blk_no], 0) >> 1); else i1_ref_idx += MAX(pi1_ref_idx1[u1_blk_no], 0); pu4_wt_offst = (UWORD32 *) &ps_dec->pu4_wt_ofsts[2 * X3(i1_ref_idx)]; if(pi1_ref_idx0[u1_blk_no] < 0) pu4_wt_offst += 1; ppu4_wt_ofst[u1_blk_no] = pu4_wt_offst; if(u1_scale_ref && (ps_dec->ps_cur_pps->u1_wted_bipred_idc == 2)) { i1_ref_idx = MAX(pi1_ref_idx0[u1_blk_no], 0); i1_ref_idx *= (ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1] << 1); i1_ref_idx += MAX(pi1_ref_idx1[u1_blk_no], 0); if(u4_bot_mb) { i1_ref_idx += (ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[0] << 1) * (ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1] << 1); } pu4_wt_offst = (UWORD32 *) &ps_dec->pu4_mbaff_wt_mat[2 * X3(i1_ref_idx)]; ppu4_wt_ofst[u1_blk_no] = pu4_wt_offst; } } } } /**************************************************/ /* Loop on Partitions */ /* direct mode is reflected as a single partition */ /**************************************************/ for(j = 0; j < u1_num_part; j++, ps_part++) { u1_sub_mb_num = ps_part->u1_sub_mb_num; ps_dec->u1_sub_mb_num = u1_sub_mb_num; if(PART_NOT_DIRECT != ps_part->u1_is_direct) { /**************************************************/ /* Direct Mode, Call DecodeSpatial/TemporalDirect */ /* only (those will in turn call FormMbPartInfo) */ /**************************************************/ ret = isvcd_decode_spatial_direct(ps_dec, u1_direct_mode_width, ps_cur_mb_info, i); if(ret != OK) return ret; ps_cur_deblk_mb->u1_mb_type |= (ps_dec->u1_currB_type << 1); } else { mv_pred_t s_mvPred = {0}; /**************************************************/ /* Non Direct Mode, Call Motion Vector Predictor */ /* and FormMbpartInfo */ /**************************************************/ u1_sub_mb_x = u1_sub_mb_num & 0x03; u1_sub_mb_y = u1_sub_mb_num >> 2; u1_blk_no = (u1_num_part < 4) ? j : (((u1_sub_mb_y >> 1) << 1) + (u1_sub_mb_x >> 1)); ps_mv_ntop = ps_mv_ntop_start + u1_sub_mb_x; ps_mv_nmb = ps_mv_nmb_start + u1_sub_mb_num; /* Populate the colpic info and reference frames */ s_mvPred.i1_ref_frame[0] = pi1_ref_idx0[u1_blk_no]; s_mvPred.i1_ref_frame[1] = pi1_ref_idx1[u1_blk_no]; u1_pred_mode = ps_part->u1_pred_mode; u1_wd = ps_part->u1_partwidth; u1_ht = ps_part->u1_partheight; if(1 != ps_svc_cur_mb_info->u1_base_mode_flag) { u1_lx_start = 0; u1_lxend = 2; if(PRED_L0 == u1_pred_mode) { s_mvPred.i2_mv[2] = 0; s_mvPred.i2_mv[3] = 0; if(0 == (u1_motion_pred_flag_l0 & (1 << u1_blk_no))) { u1_lxend = 1; } else { u1_lxend = 0; } } else if(PRED_L1 == u1_pred_mode) { s_mvPred.i2_mv[0] = 0; s_mvPred.i2_mv[1] = 0; if(0 == (u1_motion_pred_flag_l1 & (1 << u1_blk_no))) { u1_lx_start = 1; } else { u1_lx_start = 2; } } else // Bi Pred { if(0 == (u1_motion_pred_flag_l0 & (1 << u1_blk_no))) { u1_lxend = 1; } if(0 == (u1_motion_pred_flag_l1 & (1 << u1_blk_no))) { u1_lx_start = 1; } if((0 != (u1_motion_pred_flag_l0 & (1 << u1_blk_no))) && (0 != (u1_motion_pred_flag_l1 & (1 << u1_blk_no)))) { u1_lx_start = 0; u1_lxend = 0; } if((0 == (u1_motion_pred_flag_l0 & (1 << u1_blk_no))) && (0 == (u1_motion_pred_flag_l1 & (1 << u1_blk_no)))) { u1_lx_start = 0; u1_lxend = 2; } } ps_dec->pf_mvpred(ps_dec, ps_cur_mb_info, ps_mv_nmb, ps_mv_ntop, &s_mvPred, u1_sub_mb_num, u1_wd, u1_lx_start, u1_lxend, ps_cur_mb_info->u1_mb_mc_mode); } /* for generic case based on pred mode derived / signalled */ u1_lx_start = 0; u1_lxend = 2; if(PRED_L0 == u1_pred_mode) { s_mvPred.i2_mv[2] = 0; s_mvPred.i2_mv[3] = 0; u1_lxend = 1; } if(PRED_L1 == u1_pred_mode) { s_mvPred.i2_mv[0] = 0; s_mvPred.i2_mv[1] = 0; u1_lx_start = 1; } /**********************************************************/ /* Loop on number of predictors, 1 Each for Forw Backw */ /* Loop 2 times for BiDirect mode */ /**********************************************************/ for(u1_lx = u1_lx_start; u1_lx < u1_lxend; u1_lx++) { UWORD8 u1_motion_pred_flag = u1_lx ? u1_motion_pred_flag_l1 : u1_motion_pred_flag_l0; if((0 != (u1_motion_pred_flag & (1 << u1_blk_no))) || (ps_svc_cur_mb_info->u1_base_mode_flag)) { isvcd_retrive_infer_mode_mv(ps_svc_lyr_dec, &s_mvPred, u1_lx, u1_sub_mb_num); } /********************************************************/ /* Predict Mv */ /* Add Mv Residuals and store back */ /********************************************************/ u1_tmp_lx = (u1_lx << 1); i1_ref_idx = s_mvPred.i1_ref_frame[u1_lx]; /********************************************************************/ /* If reference index is inferred from the base layer and it is */ /* exceeding the number of active reference in the current layer. */ /* Then reference index is clipped to the max in the current layer */ /********************************************************************/ if(ps_svc_cur_mb_info->u1_base_mode_flag == 1) { if(i1_ref_idx > (ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[u1_lx] - 1)) { i1_ref_idx = ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[u1_lx] - 1; } } if(0 == ps_svc_cur_mb_info->u1_base_mode_flag) { i2_mv_x = ps_mv_nmb->i2_mv[u1_tmp_lx]; i2_mv_y = ps_mv_nmb->i2_mv[u1_tmp_lx + 1]; i2_mv_x += s_mvPred.i2_mv[u1_tmp_lx]; i2_mv_y += s_mvPred.i2_mv[u1_tmp_lx + 1]; s_mvPred.i2_mv[u1_tmp_lx] = i2_mv_x; s_mvPred.i2_mv[u1_tmp_lx + 1] = i2_mv_y; } else { i2_mv_x = s_mvPred.i2_mv[u1_tmp_lx]; i2_mv_y = s_mvPred.i2_mv[u1_tmp_lx + 1]; } /********************************************************/ /* Transfer setup call */ /* convert RefIdx if it is MbAff */ /* Pass Weight Offset and refFrame */ /********************************************************/ i1_ref_idx1 = i1_ref_idx >> u1_scale_ref; if(-1 == i1_ref_idx1) return NOT_OK; if(u1_scale_ref && ((i1_ref_idx & 0x01) != u4_bot_mb)) i1_ref_idx1 += MAX_REF_BUFS; ps_ref_frame = ps_dec->ps_ref_pic_buf_lx[u1_lx][i1_ref_idx1]; /* Storing Colocated-Zero u4_flag */ if(u1_lx == u1_lx_start) { /* Fill colocated info in MvPred structure */ s_mvPred.u1_col_ref_pic_idx = ps_ref_frame->u1_mv_buf_id; s_mvPred.u1_pic_type = ps_ref_frame->u1_pic_type; /* Calculating colocated zero information */ u1_colz = (u1_field << 1) | ((i1_ref_idx == 0) && (ABS(i2_mv_x) <= 1) && (ABS(i2_mv_y) <= 1)); u1_colz |= ps_mb_part_info->u1_col_info[u1_blk_no]; } pu4_wt_offst = ppu4_wt_ofst[u1_blk_no]; { pred_info_pkd_t *ps_pred_pkd; WORD16 i2_mv[2]; i2_mv[0] = i2_mv_x; i2_mv[1] = i2_mv_y; ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx; ih264d_fill_pred_info(i2_mv, u1_wd, u1_ht, u1_sub_mb_num, u1_pred_mode, ps_pred_pkd, ps_ref_frame->u1_pic_buf_id, i1_ref_idx, pu4_wt_offst, ps_ref_frame->u1_pic_type); ps_dec->u4_pred_info_pkd_idx++; ps_cur_mb_info->u1_num_pred_parts++; } } if(ps_mv_nmb) { ih264d_rep_mv_colz(ps_dec, &s_mvPred, ps_mv_nmb, u1_sub_mb_num, u1_colz, u1_ht, u1_wd); } else { return NOT_OK; } } } /* to take care of 16 parttitions increment for base mode flag case*/ if(1 == ps_svc_cur_mb_info->u1_base_mode_flag) { ps_part += (MAX_NUM_MB_PART - u1_num_part); } } else { /* Set zero values in case of Intra Mbs */ mv_pred_t s_mvPred = {{0, 0, 0, 0}, {-1, -1}, 0, 0}; /* to take care of 16 parttitions increment for base mode flag case*/ if(1 != ps_svc_cur_mb_info->u1_base_mode_flag) { return NOT_OK; } ps_cur_deblk_mb->u1_mb_type |= D_INTRA_IBL; if((ps_svc_lyr_dec->u1_layer_identifier != TARGET_LAYER) && (DBLK_ENABLED == ps_dec->ps_cur_slice->u1_disable_dblk_filter_idc)) { ps_cur_deblk_mb->u1_deblocking_mode = MB_ENABLE_FILTERING; } ps_part += (MAX_NUM_MB_PART); /* Storing colocated zero information */ if(ps_mv_nmb_start) { ih264d_rep_mv_colz(ps_dec, &s_mvPred, ps_mv_nmb_start, 0, (UWORD8) (u1_field << 1), 4, 4); } else { return NOT_OK; } } } else { /* Set zero values in case of Intra Mbs */ mv_pred_t s_mvPred = {{0, 0, 0, 0}, {-1, -1}, 0, 0}; /* Storing colocated zero information */ if(ps_mv_nmb_start) { ih264d_rep_mv_colz(ps_dec, &s_mvPred, ps_mv_nmb_start, 0, (UWORD8) (u1_field << 1), 4, 4); } else { return NOT_OK; } } } return OK; } /*! ************************************************************************** * \if Function name : isvcd_parse_bmb_cavlc \endif * * \brief * This function parses CAVLC syntax of a B MB. * * \return * 0 on Success and Error code otherwise ************************************************************************** */ WORD32 isvcd_parse_bmb_cavlc(svc_dec_lyr_struct_t *ps_svc_lyr_dec, dec_mb_info_t *ps_cur_mb_info, dec_svc_mb_info_t *ps_svc_cur_mb_info, UWORD8 u1_mb_num, UWORD8 u1_num_mbsNby2) { UWORD32 u4_cbp = 0; dec_struct_t *ps_dec = &ps_svc_lyr_dec->s_dec; deblk_mb_t *ps_cur_deblk_mb = ps_dec->ps_deblk_mbn + u1_mb_num; dec_bit_stream_t *const ps_bitstrm = ps_dec->ps_bitstrm; UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer; UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst; const UWORD8 *puc_mb_mc_mode = (const UWORD8 *) gau1_ih264d_mb_mc_mode; UWORD8 u1_mb_type = ps_cur_mb_info->u1_mb_type; WORD32 ret; UWORD8 u1_Bdirect_tranform_read = 1; dec_slice_svc_ext_params_t *ps_svc_slice_params = NULL; ps_svc_slice_params = &ps_svc_lyr_dec->s_svc_slice_params; ps_dec->s_high_profile.u1_no_submb_part_size_lt8x8_flag = 1; ps_cur_mb_info->u1_tran_form8x8 = 0; ps_cur_mb_info->ps_curmb->u1_tran_form8x8 = 0; ps_cur_mb_info->u1_yuv_dc_block_flag = 0; ps_cur_mb_info->u1_mb_mc_mode = puc_mb_mc_mode[5 + u1_mb_type]; ps_cur_deblk_mb->u1_mb_type |= D_B_SLICE; if(u1_mb_type != B_DIRECT) { ret = isvcd_parse_bmb_non_direct_cavlc(ps_svc_lyr_dec, ps_cur_mb_info, ps_svc_cur_mb_info, u1_mb_num, u1_num_mbsNby2); if(ret != OK) return ret; } else { /************ STORING PARTITION INFO ***********/ parse_part_params_t *ps_part_info; ps_part_info = ps_dec->ps_part; ps_part_info->u1_is_direct = PART_DIRECT_16x16; ps_part_info->u1_sub_mb_num = 0; ps_dec->ps_part++; /* check whether transform8x8 u4_flag to be read or not */ u1_Bdirect_tranform_read = ps_dec->s_high_profile.u1_direct_8x8_inference_flag; } if(ps_svc_slice_params->u1_adaptive_residual_prediction_flag && ps_svc_cur_mb_info->u1_crop_window_flag) { ps_svc_cur_mb_info->u1_residual_prediction_flag = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("SVC ext: u1_residual_prediction_flag", ps_svc_cur_mb_info->u1_residual_prediction_flag); } else { /*residual flag inference code */ if(1 == ps_svc_cur_mb_info->u1_crop_window_flag && 1 == ps_svc_cur_mb_info->u1_base_mode_flag) { ps_svc_cur_mb_info->u1_residual_prediction_flag = ps_svc_slice_params->u1_default_residual_prediction_flag; } else { ps_svc_cur_mb_info->u1_residual_prediction_flag = 0; } } if(ps_svc_slice_params->u1_scan_idx_end >= ps_svc_slice_params->u1_scan_idx_start) { /* Read the Coded block pattern */ const UWORD8 *puc_CbpInter = gau1_ih264d_cbp_inter; // Inlined ih264d_uev UWORD32 u4_bitstream_offset = *pu4_bitstrm_ofst; UWORD32 u4_word, u4_ldz; /***************************************************************/ /* Find leading zeros in next 32 bits */ /***************************************************************/ NEXTBITS_32(u4_word, u4_bitstream_offset, pu4_bitstrm_buf); u4_ldz = CLZ(u4_word); /* Flush the ps_bitstrm */ u4_bitstream_offset += (u4_ldz + 1); /* Read the suffix from the ps_bitstrm */ u4_word = 0; if(u4_ldz) GETBITS(u4_word, u4_bitstream_offset, pu4_bitstrm_buf, u4_ldz); *pu4_bitstrm_ofst = u4_bitstream_offset; u4_cbp = ((1 << u4_ldz) + u4_word - 1); // Inlined ih264d_uev if(u4_cbp > 47) return ERROR_CBP; u4_cbp = puc_CbpInter[u4_cbp]; if((ps_dec->s_high_profile.u1_transform8x8_present) && (u4_cbp & (0xf)) && (ps_dec->s_high_profile.u1_no_submb_part_size_lt8x8_flag) && (u1_Bdirect_tranform_read)) { ps_cur_mb_info->u1_tran_form8x8 = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("transform_size_8x8_flag", ps_cur_mb_info->u1_tran_form8x8); ps_cur_mb_info->ps_curmb->u1_tran_form8x8 = ps_cur_mb_info->u1_tran_form8x8; } COPYTHECONTEXT("coded_block_pattern", u4_cbp); ps_cur_mb_info->u1_cbp = u4_cbp; } /* Read mb_qp_delta */ if(u4_cbp) { WORD32 i_temp; // inlining ih264d_sev UWORD32 u4_bitstream_offset = *pu4_bitstrm_ofst; UWORD32 u4_word, u4_ldz, u4_abs_val; /***************************************************************/ /* Find leading zeros in next 32 bits */ /***************************************************************/ NEXTBITS_32(u4_word, u4_bitstream_offset, pu4_bitstrm_buf); u4_ldz = CLZ(u4_word); /* Flush the ps_bitstrm */ u4_bitstream_offset += (u4_ldz + 1); /* Read the suffix from the ps_bitstrm */ u4_word = 0; if(u4_ldz) GETBITS(u4_word, u4_bitstream_offset, pu4_bitstrm_buf, u4_ldz); *pu4_bitstrm_ofst = u4_bitstream_offset; u4_abs_val = ((1 << u4_ldz) + u4_word) >> 1; if(u4_word & 0x1) i_temp = (-(WORD32) u4_abs_val); else i_temp = (u4_abs_val); if(i_temp < -26 || i_temp > 25) return ERROR_INV_RANGE_QP_T; // inlinined ih264d_sev COPYTHECONTEXT("mb_qp_delta", i_temp); if(i_temp) { ret = ih264d_update_qp(ps_dec, (WORD8) i_temp); if(ret != OK) return ret; } /*SVC residual from start to end idx*/ ret = ih264d_parse_residual4x4_cavlc(ps_dec, ps_cur_mb_info, 0); if(ret != OK) return ret; if(EXCEED_OFFSET(ps_bitstrm)) return ERROR_EOB_TERMINATE_T; } else { ps_dec->i1_prev_mb_qp_delta = 0; ih264d_update_nnz_for_skipmb(ps_dec, ps_cur_mb_info, CAVLC); } return OK; } /*! ************************************************************************** * \if Function name : ParseMb_SubMb_PredBCab_svc\endif * * \brief * Implements sub_mb_pred() of 7.3.5.2. & mb_pred() of 7.3.5.1 * * \return * None. * ************************************************************************** */ WORD32 isvcd_parse_bmb_non_direct_cabac(svc_dec_lyr_struct_t *ps_svc_lyr_dec, dec_mb_info_t *ps_cur_mb_info, dec_svc_mb_info_t *ps_svc_cur_mb_info, UWORD8 u1_mb_num, UWORD8 u1_num_mbsNby2) { /* Loads from ps_dec */ dec_struct_t *ps_dec = &ps_svc_lyr_dec->s_dec; decoding_envirnoment_t *ps_cab_env = &ps_dec->s_cab_dec_env; dec_bit_stream_t *ps_bitstrm = ps_dec->ps_bitstrm; ctxt_inc_mb_info_t *p_curr_ctxt = ps_dec->ps_curr_ctxt_mb_info; parse_pmbarams_t *ps_parse_mb_data = ps_dec->ps_parse_mb_data + u1_num_mbsNby2; /* table pointer loads */ const UWORD8 *pu1_sub_mb_pred_modes = (UWORD8 *) (gau1_ih264d_submb_pred_modes) + 4; const UWORD8(*pu1_mb_pred_modes)[32] = (const UWORD8(*)[32]) gau1_ih264d_mb_pred_modes; const UWORD8 *pu1_num_mb_part = (const UWORD8 *) gau1_ih264d_num_mb_part; const UWORD8 *pu1_sub_mb_mc_mode = (UWORD8 *) (gau1_ih264d_submb_mc_mode) + 4; const UWORD8 u1_mb_type = ps_cur_mb_info->u1_mb_type; UWORD8 *pu1_col_info = ps_parse_mb_data->u1_col_info; WORD8 *pi1_ref_idx_l0 = &ps_parse_mb_data->i1_ref_idx[0][0]; WORD8 *pi1_ref_idx_l1 = &ps_parse_mb_data->i1_ref_idx[1][0]; UWORD8 u1_dec_ref_l0, u1_dec_ref_l1; UWORD8 u1_num_mb_part, u1_mb_mc_mode, u1_sub_mb, u1_mbpred_mode = 5 + u1_mb_type; UWORD32 u4_mb_mc_mode = 0, u4_mb_pred_mode = 0; WORD32 ret; dec_slice_svc_ext_params_t *ps_svc_slice_params = NULL; ps_svc_slice_params = &ps_svc_lyr_dec->s_svc_slice_params; p_curr_ctxt->u1_mb_type = CAB_NON_BD16x16; u1_sub_mb = !(u1_mb_type ^ B_8x8); { UWORD8 u1_mbaff = ps_dec->ps_cur_slice->u1_mbaff_frame_flag; UWORD8 *pu1_num_ref_idx_lx_active = ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active; UWORD8 uc_field = ps_cur_mb_info->u1_mb_field_decodingflag; UWORD8 u1_mbaff_field = (u1_mbaff & uc_field); u1_dec_ref_l0 = (pu1_num_ref_idx_lx_active[0] << u1_mbaff_field) - 1; u1_dec_ref_l1 = (pu1_num_ref_idx_lx_active[1] << u1_mbaff_field) - 1; } if(u1_sub_mb) { const UWORD8 u1_colz = ((PRED_8x8) << 6); UWORD8 uc_i; u1_mb_mc_mode = 0; u1_num_mb_part = 4; /* Reading the subMB type */ for(uc_i = 0; uc_i < 4; uc_i++) { UWORD8 u1_sub_mb_mode, u1_subMbPredModes; u1_sub_mb_mode = ih264d_parse_submb_type_cabac(1, ps_cab_env, ps_bitstrm, ps_dec->p_sub_mb_type_t); if(u1_sub_mb_mode > 12) return ERROR_SUB_MB_TYPE; u1_subMbPredModes = pu1_sub_mb_pred_modes[u1_sub_mb_mode]; u4_mb_mc_mode = (u4_mb_mc_mode << 8) | pu1_sub_mb_mc_mode[u1_sub_mb_mode]; u4_mb_pred_mode = (u4_mb_pred_mode << 8) | u1_subMbPredModes; *pi1_ref_idx_l0++ = (u1_subMbPredModes & PRED_L0) ? u1_dec_ref_l0 : -1; *pi1_ref_idx_l1++ = (u1_subMbPredModes & PRED_L1) ? u1_dec_ref_l1 : -1; COPYTHECONTEXT("sub_mb_type", u1_sub_mb_mode); /* Storing collocated Mb and SubMb mode information */ *pu1_col_info++ = (u1_colz | (pu1_sub_mb_mc_mode[u1_sub_mb_mode] << 4)); if(u1_sub_mb_mode != B_DIRECT_8x8) { if(u1_sub_mb_mode > B_BI_8x8) { ps_dec->s_high_profile.u1_no_submb_part_size_lt8x8_flag = 0; } } else if(!ps_dec->s_high_profile.u1_direct_8x8_inference_flag) { ps_dec->s_high_profile.u1_no_submb_part_size_lt8x8_flag = 0; } } pi1_ref_idx_l0 -= 4; pi1_ref_idx_l1 -= 4; } else { UWORD8 u1_mb_pred_mode_part0 = pu1_mb_pred_modes[0][u1_mbpred_mode]; UWORD8 u1_mb_pred_mode_part1 = pu1_mb_pred_modes[1][u1_mbpred_mode]; u1_mb_mc_mode = ps_cur_mb_info->u1_mb_mc_mode; u1_num_mb_part = pu1_num_mb_part[u1_mb_mc_mode]; /* Storing collocated Mb and SubMb mode information */ *pu1_col_info++ = (u1_mb_mc_mode << 6); if(u1_mb_mc_mode) *pu1_col_info++ = (u1_mb_mc_mode << 6); u4_mb_mc_mode = u1_mb_mc_mode | (u1_mb_mc_mode << 8); u4_mb_mc_mode <<= 16; u4_mb_pred_mode = ((u1_mb_pred_mode_part0 << 8) | u1_mb_pred_mode_part1) << 16; *pi1_ref_idx_l0++ = (u1_mb_pred_mode_part0 & PRED_L0) ? u1_dec_ref_l0 : -1; *pi1_ref_idx_l0-- = (u1_mb_pred_mode_part1 & PRED_L0) ? u1_dec_ref_l0 : -1; *pi1_ref_idx_l1++ = (u1_mb_pred_mode_part0 & PRED_L1) ? u1_dec_ref_l1 : -1; *pi1_ref_idx_l1-- = (u1_mb_pred_mode_part1 & PRED_L1) ? u1_dec_ref_l1 : -1; } /*Adding SVC extension code to get Motion Prediction Flags*/ { UWORD8 uc_i, u1_mvp_l1, u1_mvp_l0; UWORD8 *pu1_motion_pred_flag_l0; UWORD8 *pu1_motion_pred_flag_l1; WORD8 *pi1_ref_idx; WORD8 *pi1_lft_cxt = ps_dec->pi1_left_ref_idx_ctxt_inc; WORD8 *pi1_top_cxt = p_curr_ctxt->i1_ref_idx; pu1_motion_pred_flag_l0 = &ps_svc_cur_mb_info->au1_motion_pred_flag[0]; *pu1_motion_pred_flag_l0 = 0; pu1_motion_pred_flag_l1 = &ps_svc_cur_mb_info->au1_motion_pred_flag[1]; *pu1_motion_pred_flag_l1 = 0; if(ps_svc_cur_mb_info->u1_crop_window_flag && ps_svc_slice_params->u1_adaptive_motion_prediction_flag) { pi1_ref_idx = pi1_ref_idx_l0; for(uc_i = 0; uc_i < u1_num_mb_part; uc_i++, pi1_ref_idx++) { if(*pi1_ref_idx > 0) { u1_mvp_l0 = ih264d_decode_bin(0, ps_svc_lyr_dec->ps_motion_prediction_flag_l0, ps_bitstrm, ps_cab_env); COPYTHECONTEXT("SVC ext: u1_motion_prediction_flag_l0", u1_mvp_l0); *pu1_motion_pred_flag_l0 |= (u1_mvp_l0 << uc_i); if((u1_mvp_l0 & 0x01)) { *pi1_ref_idx = -1; } } } pi1_ref_idx = pi1_ref_idx_l1; for(uc_i = 0; uc_i < u1_num_mb_part; uc_i++, pi1_ref_idx++) { if(*pi1_ref_idx > 0) { u1_mvp_l1 = ih264d_decode_bin(0, ps_svc_lyr_dec->ps_motion_prediction_flag_l1, ps_bitstrm, ps_cab_env); COPYTHECONTEXT("SVC ext: u1_motion_prediction_flag_l1", u1_mvp_l1); *pu1_motion_pred_flag_l1 |= (u1_mvp_l1 << uc_i); if((u1_mvp_l1 & 0x01)) { *pi1_ref_idx = -1; } } } } else if(ps_svc_cur_mb_info->u1_crop_window_flag) { *pu1_motion_pred_flag_l0 = ps_svc_slice_params->u1_default_motion_prediction_flag ? ((1 << u1_num_mb_part) - 1) : 0; *pu1_motion_pred_flag_l1 = ps_svc_slice_params->u1_default_motion_prediction_flag ? ((1 << u1_num_mb_part) - 1) : 0; if(ps_svc_slice_params->u1_default_motion_prediction_flag) { pi1_ref_idx_l0[0] = -1; pi1_ref_idx_l0[1] = -1; pi1_ref_idx_l0[2] = -1; pi1_ref_idx_l0[3] = -1; pi1_ref_idx_l1[0] = -1; pi1_ref_idx_l1[1] = -1; pi1_ref_idx_l1[2] = -1; pi1_ref_idx_l1[3] = -1; } } ret = ih264d_parse_ref_idx_cabac(u1_num_mb_part, 0, u1_dec_ref_l0, u1_mb_mc_mode, pi1_ref_idx_l0, pi1_lft_cxt, pi1_top_cxt, ps_cab_env, ps_bitstrm, ps_dec->p_ref_idx_t); if(ret != OK) { return ret; } ret = ih264d_parse_ref_idx_cabac(u1_num_mb_part, 2, u1_dec_ref_l1, u1_mb_mc_mode, pi1_ref_idx_l1, pi1_lft_cxt, pi1_top_cxt, ps_cab_env, ps_bitstrm, ps_dec->p_ref_idx_t); if(ret != OK) { return ret; } } /* Read MotionVectors */ { const UWORD8 *pu1_top_left_sub_mb_indx; UWORD8 uc_j, uc_lx; UWORD8 u1_mb_part_wd, u1_mb_part_ht; const UWORD8 *pu1_sub_mb_indx_mod = (const UWORD8 *) gau1_ih264d_submb_indx_mod + (u1_sub_mb * 6); const UWORD8 *pu1_sub_mb_partw = (const UWORD8 *) gau1_ih264d_submb_partw; const UWORD8 *pu1_sub_mb_parth = (const UWORD8 *) gau1_ih264d_submb_parth; const UWORD8 *pu1_num_sub_mb_part = (const UWORD8 *) gau1_ih264d_num_submb_part; const UWORD8 *pu1_mb_partw = (const UWORD8 *) gau1_ih264d_mb_partw; const UWORD8 *pu1_mb_parth = (const UWORD8 *) gau1_ih264d_mb_parth; UWORD8 u1_p_idx = 0; UWORD8 u1_num_submb_part; parse_part_params_t *ps_part; mv_pred_t *ps_mv_start = ps_dec->ps_mv_cur + (u1_mb_num << 4); ps_part = ps_dec->ps_part; /* Default initialization for non subMb case */ u1_mb_part_wd = pu1_mb_partw[u1_mb_mc_mode]; u1_mb_part_ht = pu1_mb_parth[u1_mb_mc_mode]; u1_num_submb_part = 1; /* Decoding the MV for the subMB */ for(uc_lx = 0; uc_lx < 2; uc_lx++) { UWORD8 u1_sub_mb_num = 0; UWORD32 u4_mb_pred_mode_tmp = u4_mb_pred_mode; UWORD32 u4_mb_mc_mode_tmp = u4_mb_mc_mode; UWORD8 u1_mb_mc_mode_1, u1_pred_mode, uc_i; UWORD16 u2_sub_mb_num = 0x028A; UWORD8 u1_b2 = uc_lx << 1; u1_pred_mode = (uc_lx) ? PRED_L1 : PRED_L0; /* Default for Cabac */ pu1_top_left_sub_mb_indx = pu1_sub_mb_indx_mod + (u1_mb_mc_mode << 1); for(uc_i = 0; uc_i < u1_num_mb_part; uc_i++) { WORD8 i1_pred = (UWORD8) (u4_mb_pred_mode_tmp >> 24); u1_mb_mc_mode_1 = (UWORD8) (u4_mb_mc_mode_tmp >> 24); u4_mb_pred_mode_tmp <<= 8; u4_mb_mc_mode_tmp <<= 8; /* subMb prediction mode */ if(u1_sub_mb) { u1_mb_part_wd = pu1_sub_mb_partw[u1_mb_mc_mode_1]; u1_mb_part_ht = pu1_sub_mb_parth[u1_mb_mc_mode_1]; u1_sub_mb_num = u2_sub_mb_num >> 12; pu1_top_left_sub_mb_indx = pu1_sub_mb_indx_mod + (u1_mb_mc_mode_1 << 1); u1_num_submb_part = pu1_num_sub_mb_part[u1_mb_mc_mode_1]; u2_sub_mb_num = u2_sub_mb_num << 4; } for(uc_j = 0; uc_j < u1_num_submb_part; uc_j++, pu1_top_left_sub_mb_indx++) { mv_pred_t *ps_mv; u1_sub_mb_num = u1_sub_mb_num + *pu1_top_left_sub_mb_indx; ps_mv = ps_mv_start + u1_sub_mb_num; /* Storing Info for partitions, writing only once */ if(uc_lx) { ps_part->u1_is_direct = (!i1_pred); ps_part->u1_pred_mode = i1_pred; ps_part->u1_sub_mb_num = u1_sub_mb_num; ps_part->u1_partheight = u1_mb_part_ht; ps_part->u1_partwidth = u1_mb_part_wd; /* Increment partition Index */ u1_p_idx++; ps_part++; } ih264d_get_mvd_cabac(u1_sub_mb_num, u1_b2, u1_mb_part_wd, u1_mb_part_ht, (UWORD8) (i1_pred & u1_pred_mode), ps_dec, ps_mv); } } } /* write back to the scratch partition info */ ps_dec->ps_part = ps_part; ps_parse_mb_data->u1_num_part = u1_sub_mb ? u1_p_idx : u1_num_mb_part; } return OK; } /*! ************************************************************************** * \if Function name : isvcd_parse_bmb_non_direct_cavlc\endif * * \brief * Implements sub_mb_pred() of 7.3.5.2. & mb_pred() of 7.3.5.1 * * \return * None. * ************************************************************************** */ WORD32 isvcd_parse_bmb_non_direct_cavlc(svc_dec_lyr_struct_t *ps_svc_lyr_dec, dec_mb_info_t *ps_cur_mb_info, dec_svc_mb_info_t *ps_svc_cur_mb_info, UWORD8 u1_mb_num, UWORD8 u1_num_mbsNby2) { dec_struct_t *ps_dec = &ps_svc_lyr_dec->s_dec; dec_bit_stream_t *ps_bitstrm = ps_dec->ps_bitstrm; UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer; UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst; UWORD8 *pu1_sub_mb_pred_modes = (UWORD8 *) (gau1_ih264d_submb_pred_modes) + 4; const UWORD8(*pu1_mb_pred_modes)[32] = (const UWORD8(*)[32]) gau1_ih264d_mb_pred_modes; const UWORD8 *pu1_num_mb_part = (const UWORD8 *) gau1_ih264d_num_mb_part; const UWORD8 *pu1_sub_mb_mc_mode = (const UWORD8 *) (gau1_ih264d_submb_mc_mode) + 4; parse_pmbarams_t *ps_parse_mb_data = ps_dec->ps_parse_mb_data + u1_num_mbsNby2; UWORD8 *pu1_col_info = ps_parse_mb_data->u1_col_info; WORD8(*pi1_ref_idx)[MAX_REFIDX_INFO_PER_MB] = ps_parse_mb_data->i1_ref_idx; UWORD8 u1_mb_type = ps_cur_mb_info->u1_mb_type; UWORD8 u1_mb_mc_mode, u1_num_mb_part, u1_sub_mb = !(u1_mb_type ^ B_8x8); UWORD32 u4_mb_mc_mode = 0, u4_mb_pred_mode = 0; WORD32 ret = OK; dec_slice_svc_ext_params_t *ps_svc_slice_params = NULL; ps_svc_slice_params = &ps_svc_lyr_dec->s_svc_slice_params; if(u1_sub_mb) { UWORD8 uc_i; u1_mb_mc_mode = 0; u1_num_mb_part = 4; /* Reading the subMB type */ for(uc_i = 0; uc_i < 4; uc_i++) { UWORD32 ui_sub_mb_mode; // Inlined ih264d_uev UWORD32 u4_bitstream_offset = *pu4_bitstrm_ofst; UWORD32 u4_word, u4_ldz; /***************************************************************/ /* Find leading zeros in next 32 bits */ /***************************************************************/ NEXTBITS_32(u4_word, u4_bitstream_offset, pu4_bitstrm_buf); u4_ldz = CLZ(u4_word); /* Flush the ps_bitstrm */ u4_bitstream_offset += (u4_ldz + 1); /* Read the suffix from the ps_bitstrm */ u4_word = 0; if(u4_ldz) GETBITS(u4_word, u4_bitstream_offset, pu4_bitstrm_buf, u4_ldz); *pu4_bitstrm_ofst = u4_bitstream_offset; ui_sub_mb_mode = ((1 << u4_ldz) + u4_word - 1); // Inlined ih264d_uev if(ui_sub_mb_mode > 12) return ERROR_SUB_MB_TYPE; else { UWORD8 u1_subMbPredMode = pu1_sub_mb_pred_modes[ui_sub_mb_mode]; u4_mb_mc_mode = (u4_mb_mc_mode << 8) | pu1_sub_mb_mc_mode[ui_sub_mb_mode]; u4_mb_pred_mode = (u4_mb_pred_mode << 8) | u1_subMbPredMode; pi1_ref_idx[0][uc_i] = ((u1_subMbPredMode & PRED_L0) - 1) >> 1; pi1_ref_idx[1][uc_i] = ((u1_subMbPredMode & PRED_L1) - 1) >> 1; COPYTHECONTEXT("sub_mb_type", u1_subMbPredMode); } /* Storing collocated Mb and SubMb mode information */ *pu1_col_info++ = ((PRED_8x8) << 6) | ((pu1_sub_mb_mc_mode[ui_sub_mb_mode] << 4)); if(ui_sub_mb_mode != B_DIRECT_8x8) { if(ui_sub_mb_mode > B_BI_8x8) { ps_dec->s_high_profile.u1_no_submb_part_size_lt8x8_flag = 0; } } else if(!ps_dec->s_high_profile.u1_direct_8x8_inference_flag) { ps_dec->s_high_profile.u1_no_submb_part_size_lt8x8_flag = 0; } } } else { UWORD8 u1_mb_pred_mode_idx = 5 + u1_mb_type; UWORD8 u1_mb_pred_mode_part0 = pu1_mb_pred_modes[0][u1_mb_pred_mode_idx]; UWORD8 u1_mb_pred_mode_part1 = pu1_mb_pred_modes[1][u1_mb_pred_mode_idx]; u1_mb_mc_mode = ps_cur_mb_info->u1_mb_mc_mode; u1_num_mb_part = pu1_num_mb_part[u1_mb_mc_mode]; pi1_ref_idx[0][0] = ((u1_mb_pred_mode_part0 & PRED_L0) - 1) >> 1; pi1_ref_idx[1][0] = ((u1_mb_pred_mode_part0 & PRED_L1) - 1) >> 1; pi1_ref_idx[0][1] = ((u1_mb_pred_mode_part1 & PRED_L0) - 1) >> 1; pi1_ref_idx[1][1] = ((u1_mb_pred_mode_part1 & PRED_L1) - 1) >> 1; u4_mb_pred_mode = (u1_mb_pred_mode_part0 << 8) | u1_mb_pred_mode_part1; u4_mb_mc_mode = u1_mb_mc_mode | (u1_mb_mc_mode << 8); u4_mb_mc_mode <<= 16; u4_mb_pred_mode <<= 16; /* Storing collocated Mb and SubMb mode information */ *pu1_col_info++ = (u1_mb_mc_mode << 6); if(u1_mb_mc_mode) *pu1_col_info++ = (u1_mb_mc_mode << 6); } { UWORD8 uc_i; UWORD8 *pu1_motion_pred_flag_l0; UWORD8 *pu1_motion_pred_flag_l1; UWORD8 u1_mvp_l1; UWORD8 u1_mvp_l0; pu1_motion_pred_flag_l0 = &ps_svc_cur_mb_info->au1_motion_pred_flag[0]; *pu1_motion_pred_flag_l0 = 0; pu1_motion_pred_flag_l1 = &ps_svc_cur_mb_info->au1_motion_pred_flag[1]; *pu1_motion_pred_flag_l1 = 0; if(ps_svc_cur_mb_info->u1_crop_window_flag && ps_svc_slice_params->u1_adaptive_motion_prediction_flag) { for(uc_i = 0; uc_i < u1_num_mb_part; uc_i++) { if(pi1_ref_idx[0][uc_i] > -1) { u1_mvp_l0 = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("SVC ext: ps_motion_prediction_flag_l0", u1_mvp_l0); *pu1_motion_pred_flag_l0 |= (u1_mvp_l0 << uc_i); } } for(uc_i = 0; uc_i < u1_num_mb_part; uc_i++) { if(pi1_ref_idx[1][uc_i] > -1) { u1_mvp_l1 = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("SVC ext: ps_motion_prediction_flag_l1", u1_mvp_l1); *pu1_motion_pred_flag_l1 |= (u1_mvp_l1 << uc_i); } } } else if(ps_svc_cur_mb_info->u1_crop_window_flag) { *pu1_motion_pred_flag_l0 = ps_svc_slice_params->u1_default_motion_prediction_flag ? ((1 << u1_num_mb_part) - 1) : 0; *pu1_motion_pred_flag_l1 = ps_svc_slice_params->u1_default_motion_prediction_flag ? ((1 << u1_num_mb_part) - 1) : 0; } { UWORD8 u1_mbaff = ps_dec->ps_cur_slice->u1_mbaff_frame_flag; UWORD8 uc_field = ps_cur_mb_info->u1_mb_field_decodingflag; UWORD8 *pu1_num_ref_idx_lx_active = ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active; const UWORD8 u1_mbaff_field = (u1_mbaff & uc_field); UWORD8 u4_num_ref_idx_lx_active; u4_num_ref_idx_lx_active = (pu1_num_ref_idx_lx_active[0] << u1_mbaff_field) - 1; if(u4_num_ref_idx_lx_active) { if(1 == u4_num_ref_idx_lx_active) isvcd_parse_bmb_ref_index_cavlc_range1(u1_num_mb_part, ps_bitstrm, pi1_ref_idx[0], u4_num_ref_idx_lx_active, pu1_motion_pred_flag_l0); else { isvcd_parse_bmb_ref_index_cavlc(u1_num_mb_part, ps_bitstrm, pi1_ref_idx[0], u4_num_ref_idx_lx_active, pu1_motion_pred_flag_l0); if(ret != OK) return ret; } } u4_num_ref_idx_lx_active = (pu1_num_ref_idx_lx_active[1] << u1_mbaff_field) - 1; if(u4_num_ref_idx_lx_active) { if(1 == u4_num_ref_idx_lx_active) isvcd_parse_bmb_ref_index_cavlc_range1(u1_num_mb_part, ps_bitstrm, pi1_ref_idx[1], u4_num_ref_idx_lx_active, pu1_motion_pred_flag_l1); else { ret = isvcd_parse_bmb_ref_index_cavlc(u1_num_mb_part, ps_bitstrm, pi1_ref_idx[1], u4_num_ref_idx_lx_active, pu1_motion_pred_flag_l1); if(ret != OK) return ret; } } } } /* Read MotionVectors */ { const UWORD8 *pu1_top_left_sub_mb_indx; const UWORD8 *pu1_sub_mb_indx_mod = (const UWORD8 *) (gau1_ih264d_submb_indx_mod) + (u1_sub_mb * 6); const UWORD8 *pu1_sub_mb_partw = (const UWORD8 *) gau1_ih264d_submb_partw; const UWORD8 *pu1_sub_mb_parth = (const UWORD8 *) gau1_ih264d_submb_parth; const UWORD8 *pu1_num_sub_mb_part = (const UWORD8 *) gau1_ih264d_num_submb_part; const UWORD8 *pu1_mb_partw = (const UWORD8 *) gau1_ih264d_mb_partw; const UWORD8 *pu1_mb_parth = (const UWORD8 *) gau1_ih264d_mb_parth; UWORD8 u1_p_idx = 0, u1_num_submb_part, uc_lx; parse_part_params_t *ps_part; mv_pred_t *ps_mv_start = ps_dec->ps_mv_cur + (u1_mb_num << 4); UWORD8 u1_mb_part_wd, u1_mb_part_ht; ps_part = ps_dec->ps_part; /* Default Initialization for Non subMb Case Mode */ u1_mb_part_wd = pu1_mb_partw[u1_mb_mc_mode]; u1_mb_part_ht = pu1_mb_parth[u1_mb_mc_mode]; u1_num_submb_part = 1; /* Decoding the MV for the subMB */ for(uc_lx = 0; uc_lx < 2; uc_lx++) { UWORD8 u1_sub_mb_num = 0, u1_pred_mode, uc_i; UWORD32 u4_mb_mc_mode_tmp = u4_mb_mc_mode; UWORD32 u4_mb_pred_mode_tmp = u4_mb_pred_mode; UWORD16 u2_sub_mb_num = 0x028A; // for sub mb case UWORD8 u1_b2 = uc_lx << 1; u1_pred_mode = (uc_lx) ? PRED_L1 : PRED_L0; pu1_top_left_sub_mb_indx = pu1_sub_mb_indx_mod + (u1_mb_mc_mode << 1); for(uc_i = 0; uc_i < u1_num_mb_part; uc_i++) { UWORD8 u1_mb_mc_mode, uc_j; UWORD8 i1_pred = u4_mb_pred_mode_tmp >> 24; u1_mb_mc_mode = u4_mb_mc_mode_tmp >> 24; u4_mb_pred_mode_tmp <<= 8; u4_mb_mc_mode_tmp <<= 8; /* subMb prediction mode */ if(u1_sub_mb) { u1_mb_part_wd = pu1_sub_mb_partw[u1_mb_mc_mode]; u1_mb_part_ht = pu1_sub_mb_parth[u1_mb_mc_mode]; u1_sub_mb_num = u2_sub_mb_num >> 12; u1_num_submb_part = pu1_num_sub_mb_part[u1_mb_mc_mode]; pu1_top_left_sub_mb_indx = pu1_sub_mb_indx_mod + (u1_mb_mc_mode << 1); u2_sub_mb_num <<= 4; } for(uc_j = 0; uc_j < u1_num_submb_part; uc_j++, pu1_top_left_sub_mb_indx++) { mv_pred_t *ps_mv; u1_sub_mb_num = u1_sub_mb_num + *pu1_top_left_sub_mb_indx; ps_mv = ps_mv_start + u1_sub_mb_num; /* Storing Info for partitions, writing only once */ if(uc_lx) { ps_part->u1_is_direct = (!i1_pred); ps_part->u1_pred_mode = i1_pred; ps_part->u1_sub_mb_num = u1_sub_mb_num; ps_part->u1_partheight = u1_mb_part_ht; ps_part->u1_partwidth = u1_mb_part_wd; /* Increment partition Index */ u1_p_idx++; ps_part++; } if(i1_pred & u1_pred_mode) { WORD16 i2_mvx, i2_mvy; // inlining ih264d_sev { UWORD32 u4_bitstream_offset = *pu4_bitstrm_ofst; UWORD32 u4_word, u4_ldz, u4_abs_val; /***************************************************************/ /* Find leading zeros in next 32 bits */ /***************************************************************/ NEXTBITS_32(u4_word, u4_bitstream_offset, pu4_bitstrm_buf); u4_ldz = CLZ(u4_word); /* Flush the ps_bitstrm */ u4_bitstream_offset += (u4_ldz + 1); /* Read the suffix from the ps_bitstrm */ u4_word = 0; if(u4_ldz) GETBITS(u4_word, u4_bitstream_offset, pu4_bitstrm_buf, u4_ldz); *pu4_bitstrm_ofst = u4_bitstream_offset; u4_abs_val = ((1 << u4_ldz) + u4_word) >> 1; if(u4_word & 0x1) i2_mvx = (-(WORD32) u4_abs_val); else i2_mvx = (u4_abs_val); } // inlinined ih264d_sev { UWORD32 u4_bitstream_offset = *pu4_bitstrm_ofst; UWORD32 u4_word, u4_ldz, u4_abs_val; /***************************************************************/ /* Find leading zeros in next 32 bits */ /***************************************************************/ NEXTBITS_32(u4_word, u4_bitstream_offset, pu4_bitstrm_buf); u4_ldz = CLZ(u4_word); /* Flush the ps_bitstrm */ u4_bitstream_offset += (u4_ldz + 1); /* Read the suffix from the ps_bitstrm */ u4_word = 0; if(u4_ldz) GETBITS(u4_word, u4_bitstream_offset, pu4_bitstrm_buf, u4_ldz); *pu4_bitstrm_ofst = u4_bitstream_offset; u4_abs_val = ((1 << u4_ldz) + u4_word) >> 1; if(u4_word & 0x1) i2_mvy = (-(WORD32) u4_abs_val); else i2_mvy = (u4_abs_val); } // inlinined ih264d_sev /* Storing Mv residuals */ ps_mv->i2_mv[u1_b2] = i2_mvx; ps_mv->i2_mv[u1_b2 + 1] = i2_mvy; } } } } /* write back to the scratch partition info */ ps_dec->ps_part = ps_part; ps_parse_mb_data->u1_num_part = u1_sub_mb ? u1_p_idx : u1_num_mb_part; } return OK; } /*! ************************************************************************** * \if Function name : ih264d_decode_ebslice \endif * * \brief * Decodes an EB Slice * * * \return * 0 on Success and Error code otherwise ************************************************************************** */ WORD32 isvcd_parse_ebslice(svc_dec_lyr_struct_t *ps_svc_lyr_dec, UWORD16 u2_first_mb_in_slice) { dec_struct_t *ps_dec = &ps_svc_lyr_dec->s_dec; WORD32 i_status = OK; dec_pic_params_t *ps_pps = ps_dec->ps_cur_pps; dec_slice_params_t *ps_slice = ps_dec->ps_cur_slice; dec_bit_stream_t *ps_bitstrm = ps_dec->ps_bitstrm; dec_svc_seq_params_t *ps_subset_seq; dec_slice_svc_ext_params_t *ps_svc_slice_params = NULL; dec_subset_seq_params_t *ps_sps_svc_ext = NULL; dec_nal_unit_svc_ext_params_t *ps_nal_svc_ext = NULL; UWORD8 u1_ref_idx_re_flag_lx; UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer; UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst; UWORD64 u8_ref_idx_l0, u8_ref_idx_l1; UWORD32 u4_temp; WORD32 i_temp; WORD32 ret; ps_nal_svc_ext = ps_svc_lyr_dec->ps_nal_svc_ext; ps_subset_seq = ps_svc_lyr_dec->ps_cur_subset_sps; ps_sps_svc_ext = &ps_subset_seq->s_sps_svc_ext; ps_svc_slice_params = &ps_svc_lyr_dec->s_svc_slice_params; /*--------------------------------------------------------------------*/ /* Read remaining contents of the slice header */ /*--------------------------------------------------------------------*/ { WORD8 *pi1_buf; WORD16 *pi2_mv = ps_dec->s_default_mv_pred.i2_mv; WORD32 *pi4_mv = (WORD32 *) pi2_mv; WORD16 *pi16_refFrame; pi1_buf = ps_dec->s_default_mv_pred.i1_ref_frame; pi16_refFrame = (WORD16 *) pi1_buf; *pi4_mv = 0; *(pi4_mv + 1) = 0; *pi16_refFrame = OUT_OF_RANGE_REF; ps_dec->s_default_mv_pred.u1_col_ref_pic_idx = (UWORD8) -1; ps_dec->s_default_mv_pred.u1_pic_type = (UWORD8) -1; } if(0 == ps_svc_lyr_dec->ps_nal_svc_ext->u1_quality_id) { ps_slice->u1_num_ref_idx_active_override_flag = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("Slice Header SVC ext: num_ref_idx_override_flag", ps_slice->u1_num_ref_idx_active_override_flag); u8_ref_idx_l0 = ps_dec->ps_cur_pps->u1_num_ref_idx_lx_active[0]; u8_ref_idx_l1 = ps_dec->ps_cur_pps->u1_num_ref_idx_lx_active[1]; if(ps_slice->u1_num_ref_idx_active_override_flag) { u8_ref_idx_l0 = (UWORD64) 1 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); COPYTHECONTEXT("Slice Header SVC ext: num_ref_idx_l0_active_minus1", u8_ref_idx_l0 - 1); u8_ref_idx_l1 = (UWORD64) 1 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); COPYTHECONTEXT("Slice Header SVC ext: num_ref_idx_l1_active_minus1", u8_ref_idx_l1 - 1); } { UWORD8 u1_max_ref_idx = H264_MAX_REF_PICS; if(ps_slice->u1_field_pic_flag) { u1_max_ref_idx = H264_MAX_REF_PICS << 1; } if((u8_ref_idx_l0 >= u1_max_ref_idx) || (u8_ref_idx_l1 >= u1_max_ref_idx)) { return ERROR_NUM_REF; } ps_slice->u1_num_ref_idx_lx_active[0] = (UWORD8) u8_ref_idx_l0; ps_slice->u1_num_ref_idx_lx_active[1] = (UWORD8) u8_ref_idx_l1; } ih264d_init_ref_idx_lx_b(ps_dec); /* Store the value for future slices in the same picture */ ps_dec->u1_num_ref_idx_lx_active_prev = ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[0]; u1_ref_idx_re_flag_lx = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("Slice Header SVC ext: ref_pic_list_reordering_flag_l0", u1_ref_idx_re_flag_lx); /* Modified temporarily */ if(u1_ref_idx_re_flag_lx) { WORD8 ret; ps_dec->ps_ref_pic_buf_lx[0] = ps_dec->ps_dpb_mgr->ps_mod_dpb[0]; ret = ih264d_ref_idx_reordering(ps_dec, 0); if(ret == -1) return ERROR_REFIDX_ORDER_T; } else ps_dec->ps_ref_pic_buf_lx[0] = ps_dec->ps_dpb_mgr->ps_init_dpb[0]; u1_ref_idx_re_flag_lx = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("Slice Header SVC ext: ref_pic_list_reordering_flag_l1", u1_ref_idx_re_flag_lx); /* Modified temporarily */ if(u1_ref_idx_re_flag_lx) { WORD8 ret; ps_dec->ps_ref_pic_buf_lx[1] = ps_dec->ps_dpb_mgr->ps_mod_dpb[1]; ret = ih264d_ref_idx_reordering(ps_dec, 1); if(ret == -1) return ERROR_REFIDX_ORDER_T; } else ps_dec->ps_ref_pic_buf_lx[1] = ps_dec->ps_dpb_mgr->ps_init_dpb[1]; /* Create refIdx to POC mapping */ { void **ppv_map_ref_idx_to_poc_lx; WORD8 idx; struct pic_buffer_t *ps_pic; ppv_map_ref_idx_to_poc_lx = ps_dec->ppv_map_ref_idx_to_poc + FRM_LIST_L0; ppv_map_ref_idx_to_poc_lx[0] = 0; ppv_map_ref_idx_to_poc_lx++; for(idx = 0; idx < ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[0]; idx++) { ps_pic = ps_dec->ps_ref_pic_buf_lx[0][idx]; ppv_map_ref_idx_to_poc_lx[idx] = (ps_pic->pu1_buf1); } ppv_map_ref_idx_to_poc_lx = ps_dec->ppv_map_ref_idx_to_poc + FRM_LIST_L1; ppv_map_ref_idx_to_poc_lx[0] = 0; ppv_map_ref_idx_to_poc_lx++; for(idx = 0; idx < ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1]; idx++) { ps_pic = ps_dec->ps_ref_pic_buf_lx[1][idx]; ppv_map_ref_idx_to_poc_lx[idx] = (ps_pic->pu1_buf1); } if(ps_dec->ps_cur_slice->u1_mbaff_frame_flag) { void **ppv_map_ref_idx_to_poc_lx_t, **ppv_map_ref_idx_to_poc_lx_b; ppv_map_ref_idx_to_poc_lx_t = ps_dec->ppv_map_ref_idx_to_poc + TOP_LIST_FLD_L0; ppv_map_ref_idx_to_poc_lx_b = ps_dec->ppv_map_ref_idx_to_poc + BOT_LIST_FLD_L0; ppv_map_ref_idx_to_poc_lx_t[0] = 0; ppv_map_ref_idx_to_poc_lx_t++; ppv_map_ref_idx_to_poc_lx_b[0] = 0; ppv_map_ref_idx_to_poc_lx_b++; for(idx = 0; idx < ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[0]; idx++) { ps_pic = ps_dec->ps_ref_pic_buf_lx[0][idx]; ppv_map_ref_idx_to_poc_lx_t[0] = (ps_pic->pu1_buf1); ppv_map_ref_idx_to_poc_lx_b[1] = (ps_pic->pu1_buf1); ppv_map_ref_idx_to_poc_lx_b[0] = (ps_pic->pu1_buf1) + 1; ppv_map_ref_idx_to_poc_lx_t[1] = (ps_pic->pu1_buf1) + 1; ppv_map_ref_idx_to_poc_lx_t += 2; ppv_map_ref_idx_to_poc_lx_b += 2; } ppv_map_ref_idx_to_poc_lx_t = ps_dec->ppv_map_ref_idx_to_poc + TOP_LIST_FLD_L1; ppv_map_ref_idx_to_poc_lx_b = ps_dec->ppv_map_ref_idx_to_poc + BOT_LIST_FLD_L1; ppv_map_ref_idx_to_poc_lx_t[0] = 0; ppv_map_ref_idx_to_poc_lx_t++; ppv_map_ref_idx_to_poc_lx_b[0] = 0; ppv_map_ref_idx_to_poc_lx_b++; for(idx = 0; idx < ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1]; idx++) { UWORD8 u1_tmp_idx = idx << 1; ps_pic = ps_dec->ps_ref_pic_buf_lx[1][idx]; ppv_map_ref_idx_to_poc_lx_t[u1_tmp_idx] = (ps_pic->pu1_buf1); ppv_map_ref_idx_to_poc_lx_b[u1_tmp_idx + 1] = (ps_pic->pu1_buf1); ppv_map_ref_idx_to_poc_lx_b[u1_tmp_idx] = (ps_pic->pu1_buf1) + 1; ppv_map_ref_idx_to_poc_lx_t[u1_tmp_idx + 1] = (ps_pic->pu1_buf1) + 1; } } /* BS is moved post recon gen in SVC ext*/ if(ps_dec->u4_num_cores >= 2) { WORD32 num_entries; WORD32 size; num_entries = MAX_FRAMES; if((1 >= ps_dec->ps_cur_sps->u1_num_ref_frames) && (0 == ps_dec->i4_display_delay)) { num_entries = 1; } num_entries = ((2 * num_entries) + 1); num_entries *= 2; size = num_entries * sizeof(void *); size += PAD_MAP_IDX_POC * sizeof(void *); memcpy((void *) ps_dec->ps_parse_cur_slice->ppv_map_ref_idx_to_poc, ps_dec->ppv_map_ref_idx_to_poc, size); } } if(ps_dec->ps_cur_slice->u1_mbaff_frame_flag && (ps_dec->ps_cur_slice->u1_field_pic_flag == 0)) { ih264d_convert_frm_mbaff_list(ps_dec); } if(ps_pps->u1_wted_bipred_idc == 1) { if(!ps_nal_svc_ext->u1_no_inter_layer_pred_flag) { ps_svc_slice_params->u1_base_pred_weight_table_flag = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("Slice Header SVC ext: u1_base_pred_weight_table_flag", ps_svc_slice_params->u1_base_pred_weight_table_flag); } if(ps_nal_svc_ext->u1_no_inter_layer_pred_flag || !ps_svc_slice_params->u1_base_pred_weight_table_flag) { ih264d_parse_pred_weight_table(ps_slice, ps_bitstrm); ih264d_form_pred_weight_matrix(ps_dec); ps_dec->pu4_wt_ofsts = ps_dec->pu4_wts_ofsts_mat; } } else if(ps_pps->u1_wted_bipred_idc == 2) { /* Implicit Weighted prediction */ ps_slice->u2_log2Y_crwd = 0x0505; ps_dec->pu4_wt_ofsts = ps_dec->pu4_wts_ofsts_mat; ih264d_get_implicit_weights(ps_dec); } else ps_dec->ps_cur_slice->u2_log2Y_crwd = 0; ps_dec->ps_parse_cur_slice->u2_log2Y_crwd = ps_dec->ps_cur_slice->u2_log2Y_crwd; /* G050 */ if(ps_slice->u1_nal_ref_idc != 0) { if(!ps_dec->ps_dpb_cmds->u1_dpb_commands_read) { dec_pic_params_t *ps_pps = ps_dec->ps_cur_pps; dec_seq_params_t *ps_sps_tmp = ps_pps->ps_sps; UWORD8 u1_nal_unit_type_tmp = ps_dec->u1_nal_unit_type; ps_pps->ps_sps = ps_dec->ps_cur_sps; if(ps_svc_lyr_dec->ps_nal_svc_ext->u1_idr_flag) ps_dec->u1_nal_unit_type = IDR_SLICE_NAL; i_temp = ih264d_read_mmco_commands(ps_dec); ps_pps->ps_sps = ps_sps_tmp; ps_dec->u1_nal_unit_type = u1_nal_unit_type_tmp; if(i_temp < 0) { return ERROR_DBP_MANAGER_T; } ps_dec->u4_bitoffset = i_temp; } else ps_bitstrm->u4_ofst += ps_dec->u4_bitoffset; if(!ps_sps_svc_ext->u1_slice_header_restriction_flag) { ps_svc_slice_params->u1_store_ref_base_pic_flag = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("SPS_SVC_EXT: u1_store_ref_base_pic_flag", ps_svc_slice_params->u1_store_ref_base_pic_flag); if(0 != ps_svc_slice_params->u1_store_ref_base_pic_flag) { return NOT_OK; } if(((1 == ps_nal_svc_ext->u1_use_ref_base_pic_flag) || (1 == ps_svc_slice_params->u1_store_ref_base_pic_flag)) && (!ps_nal_svc_ext->u1_idr_flag)) { i_status = isvcd_dec_ref_base_pic_marking( &ps_svc_slice_params->s_ref_base_pic_marking_svc_ext, ps_bitstrm); if(i_status != OK) { return i_status; } } } } } /* G050 */ /*Code is present in standard but omitted in the reference code*/ if(ps_pps->u1_entropy_coding_mode == CABAC) { u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); if(u4_temp > MAX_CABAC_INIT_IDC) { return ERROR_INV_SLICE_HDR_T; } ps_slice->u1_cabac_init_idc = u4_temp; COPYTHECONTEXT("Slice Header SVC ext: cabac_init_idc", ps_slice->u1_cabac_init_idc); } { /* Read slice_qp_delta */ WORD64 i8_temp = (WORD64) ps_pps->u1_pic_init_qp + ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf); if((i8_temp < MIN_H264_QP) || (i8_temp > MAX_H264_QP)) { return ERROR_INV_RANGE_QP_T; } ps_slice->u1_slice_qp = (UWORD8) i8_temp; COPYTHECONTEXT("Slice Header SVC ext: slice_qp_delta", (WORD8) (ps_slice->u1_slice_qp - ps_pps->u1_pic_init_qp)); } if(ps_pps->u1_deblocking_filter_parameters_present_flag == 1) { u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); if(u4_temp > SLICE_BOUNDARY_DBLK_DISABLED) { return ERROR_INV_SLICE_HDR_T; } COPYTHECONTEXT("Slice Header SVC ext: disable_deblocking_filter_idc", u4_temp); ps_slice->u1_disable_dblk_filter_idc = u4_temp; if(u4_temp != 1) { i_temp = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf) << 1; if((MIN_DBLK_FIL_OFF > i_temp) || (i_temp > MAX_DBLK_FIL_OFF)) { return ERROR_INV_SLICE_HDR_T; } ps_slice->i1_slice_alpha_c0_offset = i_temp; COPYTHECONTEXT("Slice Header SVC ext: slice_alpha_c0_offset_div2", ps_slice->i1_slice_alpha_c0_offset >> 1); i_temp = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf) << 1; if((MIN_DBLK_FIL_OFF > i_temp) || (i_temp > MAX_DBLK_FIL_OFF)) { return ERROR_INV_SLICE_HDR_T; } ps_slice->i1_slice_beta_offset = i_temp; COPYTHECONTEXT("Slice Header SVC ext: slice_beta_offset_div2", ps_slice->i1_slice_beta_offset >> 1); } else { ps_slice->i1_slice_alpha_c0_offset = 0; ps_slice->i1_slice_beta_offset = 0; } } else { ps_slice->u1_disable_dblk_filter_idc = 0; ps_slice->i1_slice_alpha_c0_offset = 0; ps_slice->i1_slice_beta_offset = 0; } /* add the remaining part of the code for svc extension from reference */ ret = isvcd_set_default_slice_header_ext(ps_svc_lyr_dec); if(ret != OK) { return ERROR_INV_SLICE_HDR_T; } ret = isvcd_parse_slice_header(ps_svc_lyr_dec); if(ret != OK) { return ERROR_INV_SLICE_HDR_T; } ps_dec->u1_slice_header_done = 2; if(!ps_svc_slice_params->u1_slice_skip_flag) { if(ps_pps->u1_entropy_coding_mode) { SWITCHOFFTRACE; SWITCHONTRACECABAC; ps_svc_lyr_dec->pf_parse_inter_slice_svc_ext = isvcd_parse_inter_slice_data_cabac_enh_lyr; ps_svc_lyr_dec->pf_parse_inter_mb_svc_ext = isvcd_parse_bmb_cabac; isvcd_init_cabac_contexts(B_SLICE, ps_dec); if(ps_dec->ps_cur_slice->u1_mbaff_frame_flag) ps_dec->pf_get_mb_info = ih264d_get_mb_info_cabac_mbaff; else ps_dec->pf_get_mb_info = isvcd_get_mb_info_cabac_nonmbaff; } else { SWITCHONTRACE; SWITCHOFFTRACECABAC; ps_svc_lyr_dec->pf_parse_inter_slice_svc_ext = isvcd_parse_inter_slice_data_cavlc_enh_lyr; ps_svc_lyr_dec->pf_parse_inter_mb_svc_ext = isvcd_parse_bmb_cavlc; if(ps_dec->ps_cur_slice->u1_mbaff_frame_flag) ps_dec->pf_get_mb_info = ih264d_get_mb_info_cavlc_mbaff; else ps_dec->pf_get_mb_info = isvcd_get_mb_info_cavlc_nonmbaff; } } else { return ERROR_FEATURE_UNAVAIL; } ret = ih264d_cal_col_pic(ps_dec); if(ret != OK) return ret; ps_dec->u1_B = 1; ps_dec->pf_mvpred_ref_tfr_nby2mb = isvcd_mv_pred_ref_tfr_nby2_ebmb; ret = ps_svc_lyr_dec->pf_parse_inter_slice_svc_ext(ps_svc_lyr_dec, ps_slice, u2_first_mb_in_slice); if(ret != OK) return ret; return OK; } /*! ************************************************************************** * \if Function name : isvcd_parse_bslice \endif * * \brief * Decodes a B Slice * * * \return * 0 on Success and Error code otherwise ************************************************************************** */ WORD32 isvcd_parse_bslice(svc_dec_lyr_struct_t *ps_svc_lyr_dec, UWORD16 u2_first_mb_in_slice) { dec_struct_t *ps_dec = &ps_svc_lyr_dec->s_dec; dec_pic_params_t *ps_pps = ps_dec->ps_cur_pps; dec_slice_params_t *ps_slice = ps_dec->ps_cur_slice; dec_bit_stream_t *ps_bitstrm = ps_dec->ps_bitstrm; UWORD8 u1_ref_idx_re_flag_lx; UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer; UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst; UWORD64 u8_ref_idx_l0, u8_ref_idx_l1; UWORD32 u4_temp; WORD32 i_temp; WORD32 ret; /*--------------------------------------------------------------------*/ /* Read remaining contents of the slice header */ /*--------------------------------------------------------------------*/ { WORD8 *pi1_buf; WORD16 *pi2_mv = ps_dec->s_default_mv_pred.i2_mv; WORD32 *pi4_mv = (WORD32 *) pi2_mv; WORD16 *pi16_refFrame; pi1_buf = ps_dec->s_default_mv_pred.i1_ref_frame; pi16_refFrame = (WORD16 *) pi1_buf; *pi4_mv = 0; *(pi4_mv + 1) = 0; *pi16_refFrame = OUT_OF_RANGE_REF; ps_dec->s_default_mv_pred.u1_col_ref_pic_idx = (UWORD8) -1; ps_dec->s_default_mv_pred.u1_pic_type = (UWORD8) -1; } ps_slice->u1_num_ref_idx_active_override_flag = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("SH: num_ref_idx_override_flag", ps_slice->u1_num_ref_idx_active_override_flag); u8_ref_idx_l0 = ps_dec->ps_cur_pps->u1_num_ref_idx_lx_active[0]; u8_ref_idx_l1 = ps_dec->ps_cur_pps->u1_num_ref_idx_lx_active[1]; if(ps_slice->u1_num_ref_idx_active_override_flag) { u8_ref_idx_l0 = (UWORD64) 1 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); COPYTHECONTEXT("SH: num_ref_idx_l0_active_minus1", u8_ref_idx_l0 - 1); u8_ref_idx_l1 = (UWORD64) 1 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); COPYTHECONTEXT("SH: num_ref_idx_l1_active_minus1", u8_ref_idx_l1 - 1); } { UWORD8 u1_max_ref_idx = H264_MAX_REF_PICS; if(ps_slice->u1_field_pic_flag) { u1_max_ref_idx = H264_MAX_REF_PICS << 1; } if((u8_ref_idx_l0 >= u1_max_ref_idx) || (u8_ref_idx_l1 >= u1_max_ref_idx)) { return ERROR_NUM_REF; } ps_slice->u1_num_ref_idx_lx_active[0] = (UWORD8) u8_ref_idx_l0; ps_slice->u1_num_ref_idx_lx_active[1] = (UWORD8) u8_ref_idx_l1; } ih264d_init_ref_idx_lx_b(ps_dec); /* Store the value for future slices in the same picture */ ps_dec->u1_num_ref_idx_lx_active_prev = ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[0]; u1_ref_idx_re_flag_lx = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("SH: ref_pic_list_reordering_flag_l0", u1_ref_idx_re_flag_lx); /* Modified temporarily */ if(u1_ref_idx_re_flag_lx) { WORD8 ret; ps_dec->ps_ref_pic_buf_lx[0] = ps_dec->ps_dpb_mgr->ps_mod_dpb[0]; ret = ih264d_ref_idx_reordering(ps_dec, 0); if(ret == -1) return ERROR_REFIDX_ORDER_T; } else ps_dec->ps_ref_pic_buf_lx[0] = ps_dec->ps_dpb_mgr->ps_init_dpb[0]; u1_ref_idx_re_flag_lx = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("SH: ref_pic_list_reordering_flag_l1", u1_ref_idx_re_flag_lx); /* Modified temporarily */ if(u1_ref_idx_re_flag_lx) { WORD8 ret; ps_dec->ps_ref_pic_buf_lx[1] = ps_dec->ps_dpb_mgr->ps_mod_dpb[1]; ret = ih264d_ref_idx_reordering(ps_dec, 1); if(ret == -1) return ERROR_REFIDX_ORDER_T; } else ps_dec->ps_ref_pic_buf_lx[1] = ps_dec->ps_dpb_mgr->ps_init_dpb[1]; /* Create refIdx to POC mapping */ { void **ppv_map_ref_idx_to_poc_lx; WORD8 idx; struct pic_buffer_t *ps_pic; ppv_map_ref_idx_to_poc_lx = ps_dec->ppv_map_ref_idx_to_poc + FRM_LIST_L0; ppv_map_ref_idx_to_poc_lx[0] = 0; ppv_map_ref_idx_to_poc_lx++; for(idx = 0; idx < ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[0]; idx++) { ps_pic = ps_dec->ps_ref_pic_buf_lx[0][idx]; ppv_map_ref_idx_to_poc_lx[idx] = (ps_pic->pu1_buf1); } ppv_map_ref_idx_to_poc_lx = ps_dec->ppv_map_ref_idx_to_poc + FRM_LIST_L1; ppv_map_ref_idx_to_poc_lx[0] = 0; ppv_map_ref_idx_to_poc_lx++; for(idx = 0; idx < ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1]; idx++) { ps_pic = ps_dec->ps_ref_pic_buf_lx[1][idx]; ppv_map_ref_idx_to_poc_lx[idx] = (ps_pic->pu1_buf1); } if(ps_dec->ps_cur_slice->u1_mbaff_frame_flag) { void **ppv_map_ref_idx_to_poc_lx_t, **ppv_map_ref_idx_to_poc_lx_b; ppv_map_ref_idx_to_poc_lx_t = ps_dec->ppv_map_ref_idx_to_poc + TOP_LIST_FLD_L0; ppv_map_ref_idx_to_poc_lx_b = ps_dec->ppv_map_ref_idx_to_poc + BOT_LIST_FLD_L0; ppv_map_ref_idx_to_poc_lx_t[0] = 0; ppv_map_ref_idx_to_poc_lx_t++; ppv_map_ref_idx_to_poc_lx_b[0] = 0; ppv_map_ref_idx_to_poc_lx_b++; for(idx = 0; idx < ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[0]; idx++) { ps_pic = ps_dec->ps_ref_pic_buf_lx[0][idx]; ppv_map_ref_idx_to_poc_lx_t[0] = (ps_pic->pu1_buf1); ppv_map_ref_idx_to_poc_lx_b[1] = (ps_pic->pu1_buf1); ppv_map_ref_idx_to_poc_lx_b[0] = (ps_pic->pu1_buf1) + 1; ppv_map_ref_idx_to_poc_lx_t[1] = (ps_pic->pu1_buf1) + 1; ppv_map_ref_idx_to_poc_lx_t += 2; ppv_map_ref_idx_to_poc_lx_b += 2; } ppv_map_ref_idx_to_poc_lx_t = ps_dec->ppv_map_ref_idx_to_poc + TOP_LIST_FLD_L1; ppv_map_ref_idx_to_poc_lx_b = ps_dec->ppv_map_ref_idx_to_poc + BOT_LIST_FLD_L1; ppv_map_ref_idx_to_poc_lx_t[0] = 0; ppv_map_ref_idx_to_poc_lx_t++; ppv_map_ref_idx_to_poc_lx_b[0] = 0; ppv_map_ref_idx_to_poc_lx_b++; for(idx = 0; idx < ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1]; idx++) { UWORD8 u1_tmp_idx = idx << 1; ps_pic = ps_dec->ps_ref_pic_buf_lx[1][idx]; ppv_map_ref_idx_to_poc_lx_t[u1_tmp_idx] = (ps_pic->pu1_buf1); ppv_map_ref_idx_to_poc_lx_b[u1_tmp_idx + 1] = (ps_pic->pu1_buf1); ppv_map_ref_idx_to_poc_lx_b[u1_tmp_idx] = (ps_pic->pu1_buf1) + 1; ppv_map_ref_idx_to_poc_lx_t[u1_tmp_idx + 1] = (ps_pic->pu1_buf1) + 1; } } } if(ps_dec->ps_cur_slice->u1_mbaff_frame_flag && (ps_dec->ps_cur_slice->u1_field_pic_flag == 0)) { ih264d_convert_frm_mbaff_list(ps_dec); } if(ps_pps->u1_wted_bipred_idc == 1) { ret = ih264d_parse_pred_weight_table(ps_slice, ps_bitstrm); if(ret != OK) return ret; ih264d_form_pred_weight_matrix(ps_dec); ps_dec->pu4_wt_ofsts = ps_dec->pu4_wts_ofsts_mat; } else if(ps_pps->u1_wted_bipred_idc == 2) { /* Implicit Weighted prediction */ ps_slice->u2_log2Y_crwd = 0x0505; ps_dec->pu4_wt_ofsts = ps_dec->pu4_wts_ofsts_mat; ih264d_get_implicit_weights(ps_dec); } else ps_dec->ps_cur_slice->u2_log2Y_crwd = 0; ps_dec->ps_parse_cur_slice->u2_log2Y_crwd = ps_dec->ps_cur_slice->u2_log2Y_crwd; /* G050 */ if(ps_slice->u1_nal_ref_idc != 0) { if(!ps_dec->ps_dpb_cmds->u1_dpb_commands_read) { dec_pic_params_t *ps_pps = ps_dec->ps_cur_pps; dec_seq_params_t *ps_sps_tmp = ps_pps->ps_sps; UWORD8 u1_nal_unit_type_tmp = ps_dec->u1_nal_unit_type; ps_pps->ps_sps = ps_dec->ps_cur_sps; if(ps_svc_lyr_dec->ps_nal_svc_ext->u1_idr_flag) ps_dec->u1_nal_unit_type = IDR_SLICE_NAL; i_temp = ih264d_read_mmco_commands(ps_dec); ps_pps->ps_sps = ps_sps_tmp; ps_dec->u1_nal_unit_type = u1_nal_unit_type_tmp; if(i_temp < 0) { return ERROR_DBP_MANAGER_T; } ps_dec->u4_bitoffset = i_temp; } else ps_bitstrm->u4_ofst += ps_dec->u4_bitoffset; } /* G050 */ if(ps_pps->u1_entropy_coding_mode == CABAC) { u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); if(u4_temp > MAX_CABAC_INIT_IDC) { return ERROR_INV_SLICE_HDR_T; } ps_slice->u1_cabac_init_idc = u4_temp; COPYTHECONTEXT("SH: cabac_init_idc", ps_slice->u1_cabac_init_idc); } { /* Read slice_qp_delta */ WORD64 i8_temp = (WORD64) ps_pps->u1_pic_init_qp + ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf); if((i8_temp < MIN_H264_QP) || (i8_temp > MAX_H264_QP)) { return ERROR_INV_RANGE_QP_T; } ps_slice->u1_slice_qp = (UWORD8) i8_temp; COPYTHECONTEXT("SH: slice_qp_delta", (WORD8) (ps_slice->u1_slice_qp - ps_pps->u1_pic_init_qp)); } if(ps_pps->u1_deblocking_filter_parameters_present_flag == 1) { u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); if(u4_temp > SLICE_BOUNDARY_DBLK_DISABLED) { return ERROR_INV_SLICE_HDR_T; } COPYTHECONTEXT("SH: disable_deblocking_filter_idc", u4_temp); ps_slice->u1_disable_dblk_filter_idc = u4_temp; if(u4_temp != 1) { i_temp = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf) << 1; if((MIN_DBLK_FIL_OFF > i_temp) || (i_temp > MAX_DBLK_FIL_OFF)) { return ERROR_INV_SLICE_HDR_T; } ps_slice->i1_slice_alpha_c0_offset = i_temp; COPYTHECONTEXT("SH: slice_alpha_c0_offset_div2", ps_slice->i1_slice_alpha_c0_offset >> 1); i_temp = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf) << 1; if((MIN_DBLK_FIL_OFF > i_temp) || (i_temp > MAX_DBLK_FIL_OFF)) { return ERROR_INV_SLICE_HDR_T; } ps_slice->i1_slice_beta_offset = i_temp; COPYTHECONTEXT("SH: slice_beta_offset_div2", ps_slice->i1_slice_beta_offset >> 1); } else { ps_slice->i1_slice_alpha_c0_offset = 0; ps_slice->i1_slice_beta_offset = 0; } } else { ps_slice->u1_disable_dblk_filter_idc = 0; ps_slice->i1_slice_alpha_c0_offset = 0; ps_slice->i1_slice_beta_offset = 0; } ps_dec->u1_slice_header_done = 2; if(ps_pps->u1_entropy_coding_mode) { SWITCHOFFTRACE; SWITCHONTRACECABAC; ps_svc_lyr_dec->pf_parse_svc_inter_slice = isvcd_parse_inter_slice_data_cabac; ps_dec->pf_parse_inter_mb = ih264d_parse_bmb_cabac; ih264d_init_cabac_contexts(B_SLICE, ps_dec); if(ps_dec->ps_cur_slice->u1_mbaff_frame_flag) ps_dec->pf_get_mb_info = ih264d_get_mb_info_cabac_mbaff; else ps_dec->pf_get_mb_info = isvcd_get_mb_info_cabac_nonmbaff; } else { SWITCHONTRACE; SWITCHOFFTRACECABAC; ps_svc_lyr_dec->pf_parse_svc_inter_slice = isvcd_parse_inter_slice_data_cavlc; ps_dec->pf_parse_inter_mb = ih264d_parse_bmb_cavlc; if(ps_dec->ps_cur_slice->u1_mbaff_frame_flag) ps_dec->pf_get_mb_info = ih264d_get_mb_info_cavlc_mbaff; else ps_dec->pf_get_mb_info = isvcd_get_mb_info_cavlc_nonmbaff; } ret = ih264d_cal_col_pic(ps_dec); if(ret != OK) return ret; ps_dec->u1_B = 1; ps_dec->pf_mvpred_ref_tfr_nby2mb = ih264d_mv_pred_ref_tfr_nby2_bmb; ret = ps_svc_lyr_dec->pf_parse_svc_inter_slice(ps_svc_lyr_dec, ps_slice, u2_first_mb_in_slice); if(ret != OK) return ret; return OK; }