| /****************************************************************************** |
| * |
| * Copyright (C) 2015 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 ih264d_parse_bslice.c |
| * |
| * \brief |
| * Contains routines that decode a I slice type |
| * |
| * Detailed_description |
| * |
| * \date |
| * 07/07/2003 |
| * |
| * \author NS |
| ************************************************************************** |
| */ |
| |
| #include <string.h> |
| #include "ih264d_bitstrm.h" |
| #include "ih264d_defs.h" |
| #include "ih264d_debug.h" |
| #include "ih264d_tables.h" |
| #include "ih264d_structs.h" |
| #include "ih264d_defs.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 "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" |
| |
| void ih264d_init_cabac_contexts(UWORD8 u1_slice_type, dec_struct_t * ps_dec); |
| |
| /*! |
| ************************************************************************** |
| * \if Function name : ParseMb_SubMb_PredBCav\endif |
| * |
| * \brief |
| * Implements sub_mb_pred() of 7.3.5.2. & mb_pred() of 7.3.5.1 |
| * |
| * \return |
| * None. |
| * |
| ************************************************************************** |
| */ |
| WORD32 ih264d_parse_bmb_non_direct_cavlc(dec_struct_t * ps_dec, |
| dec_mb_info_t * ps_cur_mb_info, |
| UWORD8 u1_mb_num, |
| UWORD8 u1_num_mbsNby2) |
| { |
| 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; |
| |
| 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 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) |
| ih264d_parse_bmb_ref_index_cavlc_range1( |
| u1_num_mb_part, ps_bitstrm, pi1_ref_idx[0], |
| u4_num_ref_idx_lx_active); |
| else |
| { |
| ret = ih264d_parse_bmb_ref_index_cavlc(u1_num_mb_part, ps_bitstrm, |
| pi1_ref_idx[0], |
| u4_num_ref_idx_lx_active); |
| 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) |
| ih264d_parse_bmb_ref_index_cavlc_range1( |
| u1_num_mb_part, ps_bitstrm, pi1_ref_idx[1], |
| u4_num_ref_idx_lx_active); |
| else |
| { |
| ret = ih264d_parse_bmb_ref_index_cavlc(u1_num_mb_part, ps_bitstrm, |
| pi1_ref_idx[1], |
| u4_num_ref_idx_lx_active); |
| 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; |
| |
| /* Initialisations */ |
| 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 |
| |
| //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_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 : ParseMb_SubMb_PredBCab\endif |
| * |
| * \brief |
| * Implements sub_mb_pred() of 7.3.5.2. & mb_pred() of 7.3.5.1 |
| * |
| * \return |
| * None. |
| * |
| ************************************************************************** |
| */ |
| |
| WORD32 ih264d_parse_bmb_non_direct_cabac(dec_struct_t * ps_dec, |
| dec_mb_info_t * ps_cur_mb_info, |
| UWORD8 u1_mb_num, |
| UWORD8 u1_num_mbsNby2) |
| { |
| /* Loads from ps_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; |
| |
| 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; |
| } |
| { |
| WORD8 *pi1_lft_cxt = ps_dec->pi1_left_ref_idx_ctxt_inc; |
| WORD8 *pi1_top_cxt = p_curr_ctxt->i1_ref_idx; |
| |
| 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; |
| /* Initialisations */ |
| 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 : ih264d_parse_bmb_cabac \endif |
| * |
| * \brief |
| * This function parses CABAC syntax of a B MB. |
| * |
| * \return |
| * 0 on Success and Error code otherwise |
| ************************************************************************** |
| */ |
| WORD32 ih264d_parse_bmb_cabac(dec_struct_t * ps_dec, |
| dec_mb_info_t * ps_cur_mb_info, |
| UWORD8 u1_mb_num, |
| UWORD8 u1_num_mbsNby2) |
| { |
| UWORD8 u1_cbp; |
| 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; |
| |
| WORD32 ret; |
| UWORD8 u1_Bdirect_tranform_read = 1; |
| 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 = ih264d_parse_bmb_non_direct_cabac(ps_dec, ps_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; |
| } |
| |
| /* 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; |
| |
| 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 : ih264d_parse_bmb_cavlc \endif |
| * |
| * \brief |
| * This function parses CAVLC syntax of a B MB. |
| * |
| * \return |
| * 0 on Success and Error code otherwise |
| ************************************************************************** |
| */ |
| WORD32 ih264d_parse_bmb_cavlc(dec_struct_t * ps_dec, |
| dec_mb_info_t * ps_cur_mb_info, |
| UWORD8 u1_mb_num, |
| UWORD8 u1_num_mbsNby2) |
| { |
| UWORD32 u4_cbp; |
| 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; |
| 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 = ih264d_parse_bmb_non_direct_cavlc(ps_dec, ps_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; |
| } |
| |
| /* 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; |
| } |
| |
| 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; |
| } |
| |
| WORD32 ih264d_mv_pred_ref_tfr_nby2_bmb(dec_struct_t * ps_dec, |
| UWORD8 u1_mb_idx, |
| UWORD8 u1_num_mbs) |
| { |
| 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; |
| const UWORD8 u1_mbaff = ps_dec->ps_cur_slice->u1_mbaff_frame_flag; |
| UWORD8 u1_field; |
| WORD32 ret = 0; |
| |
| 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; |
| |
| |
| 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; |
| |
| /* MB Level initialisations */ |
| ps_dec->u4_num_pmbair = i >> u1_mbaff; |
| ps_dec->u1_mb_idx_mv = i; |
| |
| /* CHANGED CODE */ |
| 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 = ps_dec->ps_cur_slice->pf_decodeDirect(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; |
| /**************************************************/ |
| /* 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; |
| |
| u1_pred_mode = ps_part->u1_pred_mode; |
| u1_wd = ps_part->u1_partwidth; |
| u1_ht = ps_part->u1_partheight; |
| |
| 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; |
| } |
| |
| /* 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]; |
| |
| 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); |
| |
| /**********************************************************/ |
| /* 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++) |
| { |
| WORD16 i2_mv_x, i2_mv_y; |
| |
| /********************************************************/ |
| /* Predict Mv */ |
| /* Add Mv Residuals and store back */ |
| /********************************************************/ |
| i1_ref_idx = s_mvPred.i1_ref_frame[u1_lx]; |
| u1_tmp_lx = (u1_lx << 1); |
| |
| 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; |
| |
| /********************************************************/ |
| /* Transfer setup call */ |
| /* convert RefIdx if it is MbAff */ |
| /* Pass Weight Offset and refFrame */ |
| /********************************************************/ |
| i1_ref_idx1 = i1_ref_idx >> u1_scale_ref; |
| 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++; |
| |
| |
| } |
| |
| } |
| ih264d_rep_mv_colz(ps_dec, &s_mvPred, ps_mv_nmb, |
| u1_sub_mb_num, u1_colz, u1_ht, |
| u1_wd); |
| } |
| } |
| |
| } |
| 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 */ |
| ih264d_rep_mv_colz(ps_dec, &s_mvPred, ps_mv_nmb_start, 0, |
| (UWORD8)(u1_field << 1), 4, 4); |
| } |
| |
| /*if num _cores is set to 3 ,compute bs will be done in another thread*/ |
| if(ps_dec->u4_num_cores < 3) |
| { |
| if(ps_dec->u4_app_disable_deblk_frm == 0) |
| ps_dec->pf_compute_bs(ps_dec, ps_cur_mb_info, |
| (UWORD16)(i >> u1_mbaff)); |
| } |
| } |
| return OK; |
| } |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_get_implicit_weights \endif |
| * |
| * \brief |
| * Calculates Implicit Weights. |
| * |
| * \return |
| * None |
| * |
| ************************************************************************** |
| */ |
| void ih264d_get_implicit_weights(dec_struct_t *ps_dec) |
| { |
| UWORD32 *pu4_iwt_ofst; |
| UWORD8 i, j; |
| struct pic_buffer_t *ps_pic_buff0, *ps_pic_buff1; |
| WORD16 i2_dist_scale_factor; |
| WORD16 i16_tb, i16_td, i16_tx; |
| UWORD32 u4_poc0, u4_poc1; |
| UWORD32 ui_temp0, ui_temp1; |
| UWORD8 uc_num_ref_idx_l0_active, uc_num_ref_idx_l1_active; |
| |
| pu4_iwt_ofst = ps_dec->pu4_wts_ofsts_mat; |
| uc_num_ref_idx_l0_active = |
| ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[0]; |
| uc_num_ref_idx_l1_active = |
| ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1]; |
| |
| for(i = 0; i < uc_num_ref_idx_l0_active; i++) |
| { |
| ps_pic_buff0 = ps_dec->ps_ref_pic_buf_lx[0][i]; |
| u4_poc0 = ps_pic_buff0->i4_avg_poc; |
| for(j = 0; j < uc_num_ref_idx_l1_active; j++) |
| { |
| ps_pic_buff1 = ps_dec->ps_ref_pic_buf_lx[1][j]; |
| u4_poc1 = ps_pic_buff1->i4_avg_poc; |
| |
| if(u4_poc1 != u4_poc0) |
| { |
| i16_tb = ps_dec->ps_cur_pic->i4_poc - u4_poc0; |
| i16_tb = CLIP3(-128, 127, i16_tb); |
| i16_td = u4_poc1 - u4_poc0; |
| i16_td = CLIP3(-128, 127, i16_td); |
| i16_tx = (16384 + ABS(SIGN_POW2_DIV(i16_td, 1))) / i16_td; |
| i2_dist_scale_factor = CLIP3(-1024, 1023, |
| (((i16_tb * i16_tx) + 32) >> 6)); |
| |
| if(/*((u4_poc1 - u4_poc0) == 0) ||*/ |
| (!(ps_pic_buff1->u1_is_short && ps_pic_buff0->u1_is_short)) |
| || ((i2_dist_scale_factor >> 2) < -64) |
| || ((i2_dist_scale_factor >> 2) > 128)) |
| { |
| /* same for forward and backward, wt=32 and Offset = 0 */ |
| ui_temp0 = 0x00000020; |
| ui_temp1 = 0x00000020; |
| } |
| else |
| { |
| ui_temp0 = 64 - (i2_dist_scale_factor >> 2); |
| ui_temp1 = (i2_dist_scale_factor >> 2); |
| } |
| } |
| else |
| { |
| ui_temp0 = 0x00000020; |
| ui_temp1 = 0x00000020; |
| } |
| pu4_iwt_ofst[0] = pu4_iwt_ofst[2] = pu4_iwt_ofst[4] = ui_temp0; |
| pu4_iwt_ofst[1] = pu4_iwt_ofst[3] = pu4_iwt_ofst[5] = ui_temp1; |
| pu4_iwt_ofst += 6; |
| } |
| } |
| if(ps_dec->ps_cur_slice->u1_mbaff_frame_flag) |
| { |
| UWORD8 k; |
| WORD32 i4_cur_poc = ps_dec->ps_cur_pic->i4_top_field_order_cnt; |
| UWORD32* pu4_wt_mat = ps_dec->pu4_mbaff_wt_mat; |
| /* Form the Implicit Weighted prediction matrix for field MBs also */ |
| for(k = 0; k < 2; k++) |
| { |
| for(i = 0; i < (uc_num_ref_idx_l0_active << 1); i++) |
| { |
| UWORD16 u2_l0_idx; |
| |
| /*u2_l0_idx = (i >= uc_num_ref_idx_l0_active) |
| ?(MAX_REF_BUFS + i - uc_num_ref_idx_l0_active) : (i) ;*/ |
| |
| u2_l0_idx = i >> 1; |
| if((i & 0x01) != k) |
| { |
| u2_l0_idx += MAX_REF_BUFS; |
| } |
| ps_pic_buff0 = ps_dec->ps_ref_pic_buf_lx[0][u2_l0_idx]; |
| u4_poc0 = ps_pic_buff0->i4_poc; |
| for(j = 0; j < (uc_num_ref_idx_l1_active << 1); j++) |
| { |
| UWORD16 u2_l1_idx; |
| /*u2_l1_idx = (j >= uc_num_ref_idx_l1_active) |
| ? (MAX_REF_BUFS + j - uc_num_ref_idx_l1_active ) : (j) ;*/ |
| |
| u2_l1_idx = j >> 1; |
| if((j & 0x01) != k) |
| { |
| u2_l1_idx += MAX_REF_BUFS; |
| } |
| ps_pic_buff1 = ps_dec->ps_ref_pic_buf_lx[1][u2_l1_idx]; |
| u4_poc1 = ps_pic_buff1->i4_poc; |
| if(u4_poc1 != u4_poc0) |
| { |
| i16_tb = i4_cur_poc - u4_poc0; |
| i16_tb = CLIP3(-128, 127, i16_tb); |
| i16_td = u4_poc1 - u4_poc0; |
| i16_td = CLIP3(-128, 127, i16_td); |
| i16_tx = (16384 + ABS(SIGN_POW2_DIV(i16_td, 1))) |
| / i16_td; |
| i2_dist_scale_factor = CLIP3( |
| -1024, 1023, |
| (((i16_tb * i16_tx) + 32) >> 6)); |
| |
| if(/*((u4_poc1 - u4_poc0) == 0) ||*/ |
| (!(ps_pic_buff1->u1_is_short && ps_pic_buff0->u1_is_short)) |
| || ((i2_dist_scale_factor >> 2) < -64) |
| || ((i2_dist_scale_factor >> 2) > 128)) |
| { |
| /* same for forward and backward, wt=32 and Offset = 0 */ |
| ui_temp0 = 0x00000020; |
| ui_temp1 = 0x00000020; |
| } |
| else |
| { |
| ui_temp0 = 64 - (i2_dist_scale_factor >> 2); |
| ui_temp1 = (i2_dist_scale_factor >> 2); |
| } |
| } |
| else |
| { |
| ui_temp0 = 0x00000020; |
| ui_temp1 = 0x00000020; |
| } |
| /* Store in the weight matrix */ |
| *pu4_wt_mat++ = ui_temp0; |
| *pu4_wt_mat++ = ui_temp1; |
| *pu4_wt_mat++ = ui_temp0; |
| *pu4_wt_mat++ = ui_temp1; |
| *pu4_wt_mat++ = ui_temp0; |
| *pu4_wt_mat++ = ui_temp1; |
| |
| } |
| } |
| i4_cur_poc = ps_dec->ps_cur_pic->i4_bottom_field_order_cnt; |
| } |
| } |
| } |
| |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_decode_bslice \endif |
| * |
| * \brief |
| * Decodes a B Slice |
| * |
| * |
| * \return |
| * 0 on Success and Error code otherwise |
| ************************************************************************** |
| */ |
| WORD32 ih264d_parse_bslice(dec_struct_t * ps_dec, UWORD16 u2_first_mb_in_slice) |
| { |
| 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; |
| |
| UWORD32 u4_temp, ui_temp1; |
| 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); |
| |
| u4_temp = ps_dec->ps_cur_pps->u1_num_ref_idx_lx_active[0]; |
| ui_temp1 = ps_dec->ps_cur_pps->u1_num_ref_idx_lx_active[1]; |
| if(ps_slice->u1_num_ref_idx_active_override_flag) |
| { |
| u4_temp = 1 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); |
| COPYTHECONTEXT("SH: num_ref_idx_l0_active_minus1", |
| u4_temp - 1); |
| ui_temp1 = 1 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); |
| COPYTHECONTEXT("SH: num_ref_idx_l1_active_minus1", |
| ui_temp1 - 1); |
| } |
| |
| { |
| UWORD8 u1_max_ref_idx = MAX_FRAMES; |
| if(ps_slice->u1_field_pic_flag) |
| { |
| u1_max_ref_idx = MAX_FRAMES << 1; |
| } |
| if((u4_temp > u1_max_ref_idx) || (ui_temp1 > u1_max_ref_idx)) |
| { |
| return ERROR_NUM_REF; |
| } |
| ps_slice->u1_num_ref_idx_lx_active[0] = u4_temp; |
| ps_slice->u1_num_ref_idx_lx_active[1] = ui_temp1; |
| } |
| /* Initialize the Reference list once in Picture if the slice type */ |
| /* of first slice is between 5 to 9 defined in table 7.3 of standard */ |
| /* If picture contains both P & B slices then Initialize the Reference*/ |
| /* List only when it switches from P to B and B to P */ |
| |
| { |
| UWORD8 init_idx_flg = (ps_dec->u1_pr_sl_type |
| != ps_dec->ps_cur_slice->u1_slice_type); |
| if(ps_dec->u1_first_pb_nal_in_pic |
| || (init_idx_flg & !ps_dec->u1_sl_typ_5_9) |
| || ps_dec->u1_num_ref_idx_lx_active_prev |
| != ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[0]) |
| ih264d_init_ref_idx_lx_b(ps_dec); |
| if(ps_dec->u1_first_pb_nal_in_pic & ps_dec->u1_sl_typ_5_9) |
| ps_dec->u1_first_pb_nal_in_pic = 0; |
| } |
| /* 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->u4_num_cores >= 3) |
| { |
| 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); |
| if(BASE_PROFILE_IDC != ps_dec->ps_cur_sps->u1_profile_idc) |
| { |
| 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) |
| { |
| 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) |
| ps_dec->u4_bitoffset = ih264d_read_mmco_commands(ps_dec); |
| 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 */ |
| i_temp = ps_pps->u1_pic_init_qp |
| + ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf); |
| if((i_temp < 0) || (i_temp > 51)) |
| { |
| return ERROR_INV_RANGE_QP_T; |
| } |
| ps_slice->u1_slice_qp = i_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_dec->pf_parse_inter_slice = ih264d_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 = ih264d_get_mb_info_cabac_nonmbaff; |
| } |
| else |
| { |
| SWITCHONTRACE; SWITCHOFFTRACECABAC; |
| ps_dec->pf_parse_inter_slice = ih264d_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 = ih264d_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_dec->pf_parse_inter_slice(ps_dec, ps_slice, u2_first_mb_in_slice); |
| if(ret != OK) |
| return ret; |
| return OK; |
| } |
| |
