| /****************************************************************************** |
| * |
| * 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_process_bslice.c |
| * |
| * \brief |
| * Contains routines that decode B slice type |
| * |
| * Detailed_description |
| * |
| * \date |
| * 21/12/2002 |
| * |
| * \author NS |
| ************************************************************************** |
| */ |
| #include "ih264_typedefs.h" |
| #include "ih264_macros.h" |
| #include "ih264_platform_macros.h" |
| |
| #include <string.h> |
| #include "ih264d_structs.h" |
| #include "ih264d_bitstrm.h" |
| #include "ih264d_parse_cavlc.h" |
| #include "ih264d_mb_utils.h" |
| #include "ih264d_mvpred.h" |
| #include "ih264d_inter_pred.h" |
| #include "ih264d_process_pslice.h" |
| #include "ih264d_error_handler.h" |
| #include "ih264d_tables.h" |
| #include "ih264d_parse_slice.h" |
| #include "ih264d_process_pslice.h" |
| #include "ih264d_process_bslice.h" |
| #include "ih264d_tables.h" |
| #include "ih264d_parse_islice.h" |
| #include "ih264d_mvpred.h" |
| |
| void ih264d_init_cabac_contexts(UWORD8 u1_slice_type, dec_struct_t * ps_dec); |
| //UWORD32 g_hits = 0; |
| //UWORD32 g_miss = 0; |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_decode_spatial_direct \endif |
| * |
| * \brief |
| * Decodes spatial direct mode. |
| * |
| * \return |
| * None. |
| * Arunoday T |
| ************************************************************************** |
| */ |
| WORD32 ih264d_decode_spatial_direct(dec_struct_t * ps_dec, |
| UWORD8 u1_wd_x, |
| dec_mb_info_t * ps_cur_mb_info, |
| UWORD8 u1_mb_num) |
| { |
| mv_pred_t s_mv_pred, *ps_mv; |
| UWORD8 u1_col_zero_flag, u1_sub_mb_num, u1_direct_zero_pred_flag = 0; |
| UWORD8 u1_mbaff = ps_dec->ps_cur_slice->u1_mbaff_frame_flag; |
| mv_pred_t *ps_mv_ntop_start; |
| mv_pred_t *ps_mv_nmb_start = ps_dec->ps_mv_cur + (u1_mb_num << 4); |
| UWORD8 partition_size, sub_partition, u1_mb_partw, u1_mb_parth; |
| UWORD8 i; |
| WORD8 i1_pred, i1_ref_frame0, i1_ref_frame1; |
| struct pic_buffer_t *ps_ref_frame = NULL, *ps_col_pic, *ps_pic_buff0 = NULL, |
| *ps_pic_buff1 = NULL; |
| |
| UWORD8 u1_zero_pred_cond_f, u1_zero_pred_cond_b; |
| WORD16 i2_def_mv[2], i2_spat_pred_mv[4], *pi2_final_mv0, *pi2_final_mv1; |
| UWORD16 ui2_mask_fwd = 0, ui2_mask_bwd = 0, u2_mask = 0; |
| UWORD32 *pui32_weight_ofsts = NULL; |
| directmv_t s_mvdirect; |
| UWORD8 u1_colz; |
| UWORD8 u1_final_ref_idx = 0; |
| const UWORD8 *pu1_mb_parth = (const UWORD8 *)gau1_ih264d_mb_parth; |
| const UWORD8 *pu1_mb_partw = (const UWORD8 *)gau1_ih264d_mb_partw; |
| const UWORD16 sub_mask_table[] = |
| { 0x33, 0x3, 0x11, 0x1 }; |
| const UWORD16 mask_table[] = |
| { 0xffff, /*16x16 NA */ |
| 0xff, /* 16x8*/ |
| 0x3333, /* 8x16*/ |
| 0x33 };/* 8x8*/ |
| mv_pred_t s_temp_mv_pred; |
| WORD32 ret = 0; |
| |
| /* CHANGED CODE */ |
| ps_mv_ntop_start = ps_dec->ps_mv_cur + (u1_mb_num << 4) |
| - (ps_dec->u2_frm_wd_in_mbs << (4 + u1_mbaff)) + 12; |
| |
| /* assign default values for MotionVector as zero */ |
| i2_def_mv[0] = 0; |
| i2_def_mv[1] = 0; |
| |
| u1_direct_zero_pred_flag = ps_dec->pf_mvpred(ps_dec, ps_cur_mb_info, ps_mv_nmb_start, |
| ps_mv_ntop_start, &s_mv_pred, 0, 4, |
| 0, 1, B_DIRECT_SPATIAL); |
| |
| i2_spat_pred_mv[0] = s_mv_pred.i2_mv[0]; |
| i2_spat_pred_mv[1] = s_mv_pred.i2_mv[1]; |
| i2_spat_pred_mv[2] = s_mv_pred.i2_mv[2]; |
| i2_spat_pred_mv[3] = s_mv_pred.i2_mv[3]; |
| |
| i1_ref_frame0 = s_mv_pred.i1_ref_frame[0]; |
| i1_ref_frame1 = s_mv_pred.i1_ref_frame[1]; |
| |
| i1_ref_frame0 = (i1_ref_frame0 < 0) ? -1 : i1_ref_frame0; |
| i1_ref_frame1 = (i1_ref_frame1 < 0) ? -1 : i1_ref_frame1; |
| |
| i1_pred = 0; |
| |
| { |
| WORD8 u1_ref_idx, u1_ref_idx1; |
| UWORD32 uc_Idx, uc_Idx1; |
| UWORD8 u1_scale_ref = (ps_dec->ps_cur_slice->u1_mbaff_frame_flag |
| && ps_cur_mb_info->u1_mb_field_decodingflag); |
| u1_final_ref_idx = i1_ref_frame0; |
| if(i1_ref_frame0 >= 0) |
| { |
| /* convert RefIdx if it is MbAff */ |
| u1_ref_idx = i1_ref_frame0; |
| u1_ref_idx1 = i1_ref_frame0; |
| if(u1_scale_ref) |
| { |
| u1_ref_idx1 = u1_ref_idx >> 1; |
| if((u1_ref_idx & 0x01) != (1 - ps_cur_mb_info->u1_topmb)) |
| u1_ref_idx1 += MAX_REF_BUFS; |
| } |
| /* If i1_ref_frame0 < 0 then refIdxCol is obtained from ps_pic_buff1 */ |
| ps_pic_buff0 = ps_dec->ps_ref_pic_buf_lx[0][u1_ref_idx1]; |
| ps_ref_frame = ps_pic_buff0; |
| i1_pred = PRED_L0; |
| } |
| |
| if(i1_ref_frame1 >= 0) |
| { |
| /* convert RefIdx if it is MbAff */ |
| u1_ref_idx = i1_ref_frame1; |
| u1_ref_idx1 = i1_ref_frame1; |
| if(u1_scale_ref) |
| { |
| u1_ref_idx1 = u1_ref_idx >> 1; |
| if((u1_ref_idx & 0x01) != (1 - ps_cur_mb_info->u1_topmb)) |
| u1_ref_idx1 += MAX_REF_BUFS; |
| } |
| ps_pic_buff1 = ps_dec->ps_ref_pic_buf_lx[1][u1_ref_idx1]; |
| i1_pred = i1_pred | PRED_L1; |
| } |
| if(i1_ref_frame0 < 0) |
| { |
| ps_ref_frame = ps_pic_buff1; |
| u1_final_ref_idx = i1_ref_frame1; |
| } |
| |
| u1_zero_pred_cond_f = (u1_direct_zero_pred_flag) || (i1_ref_frame0 < 0); |
| u1_zero_pred_cond_b = (u1_direct_zero_pred_flag) || (i1_ref_frame1 < 0); |
| |
| if(ps_dec->ps_cur_pps->u1_wted_bipred_idc) |
| { |
| uc_Idx = ((i1_ref_frame0 < 1) ? 0 : i1_ref_frame0) |
| * ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1]; |
| if(u1_scale_ref) |
| uc_Idx >>= 1; |
| uc_Idx1 = (i1_ref_frame1 < 0) ? 0 : i1_ref_frame1; |
| uc_Idx += (u1_scale_ref) ? (uc_Idx1 >> 1) : uc_Idx1; |
| pui32_weight_ofsts = |
| (UWORD32*)&ps_dec->pu4_wt_ofsts[2 * X3(uc_Idx)]; |
| |
| if(i1_ref_frame0 < 0) |
| pui32_weight_ofsts += 1; |
| |
| if(u1_scale_ref && (ps_dec->ps_cur_pps->u1_wted_bipred_idc == 2)) |
| { |
| WORD16 i2_ref_idx; |
| i2_ref_idx = MAX(i1_ref_frame0, 0); |
| i2_ref_idx *= (ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1] |
| << 1); |
| i2_ref_idx += MAX(i1_ref_frame1, 0); |
| if(!ps_cur_mb_info->u1_topmb) |
| i2_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); |
| pui32_weight_ofsts = (UWORD32*)&ps_dec->pu4_mbaff_wt_mat[2 |
| * X3(i2_ref_idx)]; |
| } |
| } |
| } |
| |
| s_temp_mv_pred.i1_ref_frame[0] = i1_ref_frame0; |
| s_temp_mv_pred.i1_ref_frame[1] = i1_ref_frame1; |
| s_temp_mv_pred.u1_col_ref_pic_idx = ps_ref_frame->u1_mv_buf_id; |
| s_temp_mv_pred.u1_pic_type = ps_ref_frame->u1_pic_type; |
| |
| /**********************************************************************/ |
| /* Call the function which gets the number of partitions and */ |
| /* partition info of colocated Mb */ |
| /**********************************************************************/ |
| |
| ps_dec->pf_parse_mvdirect(ps_dec, ps_dec->ps_col_pic, &s_mvdirect, u1_wd_x, |
| ps_dec->i4_submb_ofst, ps_cur_mb_info); |
| ps_col_pic = ps_dec->ps_col_pic; |
| if((s_mvdirect.u1_col_zeroflag_change == 0) || u1_direct_zero_pred_flag) |
| { |
| WORD16 i2_mv_x, i2_mv_y, i2_mvX1, i2_mvY1; |
| /* Most probable case */ |
| u1_col_zero_flag = *(ps_col_pic->pu1_col_zero_flag |
| + s_mvdirect.i4_mv_indices[0]); |
| u1_col_zero_flag = u1_col_zero_flag & 0x01; |
| |
| if(u1_zero_pred_cond_f || ((i1_ref_frame0 == 0) && (u1_col_zero_flag == 1))) |
| { |
| i2_mv_x = 0; |
| i2_mv_y = 0; |
| } |
| else |
| { |
| i2_mv_x = i2_spat_pred_mv[0]; |
| i2_mv_y = i2_spat_pred_mv[1]; |
| |
| } |
| |
| if(u1_zero_pred_cond_b || ((i1_ref_frame1 == 0) && (u1_col_zero_flag == 1))) |
| { |
| i2_mvX1 = 0; |
| i2_mvY1 = 0; |
| } |
| else |
| { |
| i2_mvX1 = i2_spat_pred_mv[2]; |
| i2_mvY1 = i2_spat_pred_mv[3]; |
| } |
| |
| u1_sub_mb_num = ps_dec->u1_sub_mb_num; |
| u1_mb_partw = (u1_wd_x >> 2); |
| |
| |
| if(i1_ref_frame0 >= 0) |
| { |
| { |
| pred_info_pkd_t *ps_pred_pkd; |
| WORD16 i2_mv[2]; |
| WORD8 i1_ref_idx= 0; |
| |
| 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_mb_partw,u1_mb_partw,u1_sub_mb_num,i1_pred, |
| ps_pred_pkd,ps_pic_buff0->u1_pic_buf_id,i1_ref_idx,pui32_weight_ofsts, |
| ps_pic_buff0->u1_pic_type); |
| ps_dec->u4_pred_info_pkd_idx++; |
| ps_cur_mb_info->u1_num_pred_parts++; |
| |
| |
| } |
| |
| } |
| |
| if(i1_ref_frame1 >= 0) |
| { |
| { |
| pred_info_pkd_t *ps_pred_pkd; |
| WORD16 i2_mv[2]; |
| WORD8 i1_ref_idx= 0; |
| |
| i2_mv[0] = i2_mvX1; |
| i2_mv[1] = i2_mvY1; |
| |
| ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx; |
| ih264d_fill_pred_info(i2_mv,u1_mb_partw,u1_mb_partw,u1_sub_mb_num,i1_pred, |
| ps_pred_pkd,ps_pic_buff1->u1_pic_buf_id,i1_ref_idx,pui32_weight_ofsts, |
| ps_pic_buff1->u1_pic_type); |
| ps_dec->u4_pred_info_pkd_idx++; |
| ps_cur_mb_info->u1_num_pred_parts++; |
| |
| |
| } |
| } |
| |
| |
| /* Replication optimisation */ |
| s_temp_mv_pred.i2_mv[0] = i2_mv_x; |
| s_temp_mv_pred.i2_mv[1] = i2_mv_y; |
| s_temp_mv_pred.i2_mv[2] = i2_mvX1; |
| s_temp_mv_pred.i2_mv[3] = i2_mvY1; |
| |
| /* Calculating colocated zero information */ |
| { |
| /*************************************/ |
| /* If(bit2 and bit3 set) */ |
| /* then */ |
| /* (bit0 and bit1) => submmbmode */ |
| /* (bit2 and bit3) => mbmode */ |
| /* else */ |
| /* (bit0 and bit1) => mbmode */ |
| /*************************************/ |
| /*UWORD8 u1_packed_mb_sub_mb_mode = sub_partition ? |
| (s_mvdirect.i1_partitionsize[0]) : ((s_mvdirect.i1_partitionsize[0]) << 2);*/ |
| UWORD8 u1_packed_mb_sub_mb_mode = (u1_mb_partw == 2) ? 0x03 : 0; |
| |
| if(i1_ref_frame0 < 0) |
| { |
| i2_mv_x = i2_mvX1; |
| i2_mv_y = i2_mvY1; |
| } |
| |
| /* Change from left shift 4 to 6 - Varun */ |
| u1_colz = (ps_cur_mb_info->u1_mb_field_decodingflag << 1) |
| | ((u1_final_ref_idx == 0) && (ABS(i2_mv_x) <= 1) |
| && (ABS(i2_mv_y) <= 1)); |
| u1_colz |= (u1_packed_mb_sub_mb_mode << 6); |
| } |
| ps_mv = ps_mv_nmb_start + u1_sub_mb_num; |
| ih264d_rep_mv_colz(ps_dec, &s_temp_mv_pred, ps_mv, u1_sub_mb_num, u1_colz, |
| u1_mb_partw, u1_mb_partw); |
| if(u1_wd_x == MB_SIZE) |
| ps_dec->u1_currB_type = 0; |
| |
| |
| |
| return OK; |
| } |
| /***************************************************************************/ |
| /* If present MB is 16x16 and the partition of colocated Mb is >= PRED_8x8 */ |
| /* i.e 8x8 or less than 8x8 partitions then set up DMA for (0,0) and */ |
| /* spatially predicted motion vector and do the multiplexing after */ |
| /* motion compensation */ |
| /***************************************************************************/ |
| |
| |
| if((u1_wd_x == MB_SIZE) && (s_mvdirect.i1_num_partitions > 2)) |
| { |
| ps_cur_mb_info->u1_Mux = 1; |
| if(i1_ref_frame0 >= 0) |
| { |
| |
| { |
| pred_info_pkd_t *ps_pred_pkd; |
| WORD8 i1_ref_idx= 0; |
| |
| ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx; |
| ih264d_fill_pred_info(&(i2_spat_pred_mv[0]),4,4,0,i1_pred, |
| ps_pred_pkd,ps_pic_buff0->u1_pic_buf_id,i1_ref_idx,pui32_weight_ofsts, |
| ps_pic_buff0->u1_pic_type); |
| ps_dec->u4_pred_info_pkd_idx++; |
| ps_cur_mb_info->u1_num_pred_parts++; |
| |
| |
| } |
| |
| /****** (0,0) Motion vectors DMA *****/ |
| { |
| pred_info_pkd_t *ps_pred_pkd; |
| WORD16 i2_mv[2]; |
| WORD8 i1_ref_idx= 0; |
| |
| i2_mv[0] = 0; |
| i2_mv[1] = 0; |
| |
| ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx; |
| ih264d_fill_pred_info(i2_mv,4,4,0,i1_pred, |
| ps_pred_pkd,ps_pic_buff0->u1_pic_buf_id,i1_ref_idx,pui32_weight_ofsts, |
| ps_pic_buff0->u1_pic_type); |
| ps_dec->u4_pred_info_pkd_idx++; |
| ps_cur_mb_info->u1_num_pred_parts++; |
| |
| |
| } |
| } |
| if(i1_ref_frame1 >= 0) |
| { |
| { |
| pred_info_pkd_t *ps_pred_pkd; |
| WORD16 i2_mv[2]; |
| WORD8 i1_ref_idx= 0; |
| |
| ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx; |
| ih264d_fill_pred_info(&(i2_spat_pred_mv[2]),4,4,0,i1_pred, |
| ps_pred_pkd,ps_pic_buff1->u1_pic_buf_id,i1_ref_idx,pui32_weight_ofsts, |
| ps_pic_buff1->u1_pic_type); |
| ps_dec->u4_pred_info_pkd_idx++; |
| ps_cur_mb_info->u1_num_pred_parts++; |
| |
| |
| } |
| |
| /****** (0,0) Motion vectors DMA *****/ |
| |
| { |
| pred_info_pkd_t *ps_pred_pkd; |
| WORD16 i2_mv[2]; |
| WORD8 i1_ref_idx= 0; |
| |
| i2_mv[0] = 0; |
| i2_mv[1] = 0; |
| |
| ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx; |
| ih264d_fill_pred_info(i2_mv,4,4,0,i1_pred, |
| ps_pred_pkd,ps_pic_buff1->u1_pic_buf_id,i1_ref_idx,pui32_weight_ofsts, |
| ps_pic_buff1->u1_pic_type); |
| ps_dec->u4_pred_info_pkd_idx++; |
| ps_cur_mb_info->u1_num_pred_parts++; |
| |
| |
| } |
| } |
| } |
| |
| /*u1_col = *(ps_col_pic->pu1_col_zero_flag + s_mvdirect.i4_mv_indices[0]); |
| u1_col &= 1; |
| u1_init = 0;*/ |
| |
| for(i = 0; i < s_mvdirect.i1_num_partitions; i++) |
| { |
| partition_size = s_mvdirect.i1_partitionsize[i]; |
| u1_sub_mb_num = s_mvdirect.i1_submb_num[i]; |
| |
| sub_partition = partition_size >> 2; |
| partition_size &= 0x3; |
| u1_mb_partw = pu1_mb_partw[partition_size]; |
| u1_mb_parth = pu1_mb_parth[partition_size]; |
| u2_mask = mask_table[partition_size]; |
| if(sub_partition != 0) |
| { |
| u1_mb_partw >>= 1; |
| u1_mb_parth >>= 1; |
| u2_mask = sub_mask_table[partition_size]; |
| } |
| |
| u1_col_zero_flag = *(ps_col_pic->pu1_col_zero_flag |
| + s_mvdirect.i4_mv_indices[i]); |
| u1_col_zero_flag = u1_col_zero_flag & 0x01; |
| |
| /*if(u1_col != u1_col_zero_flag) |
| u1_init = 1;*/ |
| |
| if(u1_zero_pred_cond_f || ((i1_ref_frame0 == 0) && (u1_col_zero_flag == 1))) |
| { |
| pi2_final_mv0 = &i2_def_mv[0]; |
| ui2_mask_fwd |= (u2_mask << u1_sub_mb_num); |
| } |
| else |
| pi2_final_mv0 = &i2_spat_pred_mv[0]; |
| |
| if(u1_zero_pred_cond_b || ((i1_ref_frame1 == 0) && (u1_col_zero_flag == 1))) |
| { |
| pi2_final_mv1 = &i2_def_mv[0]; |
| ui2_mask_bwd |= (u2_mask << u1_sub_mb_num); |
| } |
| else |
| pi2_final_mv1 = &i2_spat_pred_mv[2]; |
| |
| if(ps_cur_mb_info->u1_Mux != 1) |
| { |
| /*u1_sub_mb_x = u1_sub_mb_num & 0x03; |
| uc_sub_mb_y = (u1_sub_mb_num >> 2);*/ |
| if(i1_ref_frame0 >= 0) |
| { |
| |
| { |
| pred_info_pkd_t *ps_pred_pkd; |
| WORD8 i1_ref_idx= 0; |
| |
| ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx; |
| ih264d_fill_pred_info(pi2_final_mv0,u1_mb_partw,u1_mb_parth,u1_sub_mb_num,i1_pred, |
| ps_pred_pkd,ps_pic_buff0->u1_pic_buf_id,i1_ref_idx,pui32_weight_ofsts, |
| ps_pic_buff0->u1_pic_type); |
| ps_dec->u4_pred_info_pkd_idx++; |
| ps_cur_mb_info->u1_num_pred_parts++; |
| |
| |
| } |
| |
| } |
| |
| if(i1_ref_frame1 >= 0) |
| { |
| { |
| pred_info_pkd_t *ps_pred_pkd; |
| WORD8 i1_ref_idx= 0; |
| |
| ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx; |
| ih264d_fill_pred_info(pi2_final_mv1,u1_mb_partw,u1_mb_parth,u1_sub_mb_num,i1_pred, |
| ps_pred_pkd,ps_pic_buff1->u1_pic_buf_id,i1_ref_idx,pui32_weight_ofsts, |
| ps_pic_buff1->u1_pic_type); |
| ps_dec->u4_pred_info_pkd_idx++; |
| ps_cur_mb_info->u1_num_pred_parts++; |
| |
| |
| } |
| } |
| } |
| |
| /* Replication optimisation */ |
| s_temp_mv_pred.i2_mv[0] = pi2_final_mv0[0]; |
| s_temp_mv_pred.i2_mv[1] = pi2_final_mv0[1]; |
| s_temp_mv_pred.i2_mv[2] = pi2_final_mv1[0]; |
| s_temp_mv_pred.i2_mv[3] = pi2_final_mv1[1]; |
| |
| /* Calculating colocated zero information */ |
| { |
| WORD16 i2_mv_x = 0, i2_mv_y = 0; |
| /*************************************/ |
| /* If(bit2 and bit3 set) */ |
| /* then */ |
| /* (bit0 and bit1) => submmbmode */ |
| /* (bit2 and bit3) => mbmode */ |
| /* else */ |
| /* (bit0 and bit1) => mbmode */ |
| /*************************************/ |
| UWORD8 u1_packed_mb_sub_mb_mode = |
| sub_partition ? (s_mvdirect.i1_partitionsize[i]) : ((s_mvdirect.i1_partitionsize[i]) |
| << 2); |
| |
| if(i1_ref_frame0 >= 0) |
| { |
| i2_mv_x = pi2_final_mv0[0]; |
| i2_mv_y = pi2_final_mv0[1]; |
| } |
| else |
| { |
| i2_mv_x = pi2_final_mv1[0]; |
| i2_mv_y = pi2_final_mv1[1]; |
| } |
| |
| u1_colz = (ps_cur_mb_info->u1_mb_field_decodingflag << 1) |
| | ((u1_final_ref_idx == 0) && (ABS(i2_mv_x) <= 1) |
| && (ABS(i2_mv_y) <= 1)); |
| u1_colz |= (u1_packed_mb_sub_mb_mode << 4); |
| } |
| ps_mv = ps_mv_nmb_start + u1_sub_mb_num; |
| ih264d_rep_mv_colz(ps_dec, &s_temp_mv_pred, ps_mv, u1_sub_mb_num, u1_colz, |
| u1_mb_parth, u1_mb_partw); |
| } |
| i = 0; |
| if(i1_ref_frame0 >= 0) |
| ps_cur_mb_info->u2_mask[i++] = ui2_mask_fwd; |
| if(i1_ref_frame1 >= 0) |
| ps_cur_mb_info->u2_mask[i] = ui2_mask_bwd; |
| |
| /*if(u1_init) |
| H264_DEC_DEBUG_PRINT("hit\n"); |
| else |
| H264_DEC_DEBUG_PRINT("miss\n");*/ |
| |
| return OK; |
| } |
| |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_decode_temporal_direct \endif |
| * |
| * \brief |
| * Decodes temporal direct mode. |
| * |
| * \return |
| * None. |
| * |
| ************************************************************************** |
| */ |
| WORD32 ih264d_decode_temporal_direct(dec_struct_t * ps_dec, |
| UWORD8 u1_wd_x, |
| dec_mb_info_t * ps_cur_mb_info, |
| UWORD8 u1_mb_num) |
| { |
| struct pic_buffer_t *ps_pic_buff0, *ps_pic_buff1, *ps_col_pic; |
| mv_pred_t *ps_mv, s_temp_mv_pred; |
| UWORD8 u1_sub_mb_num; |
| UWORD8 u1_mbaff = ps_dec->ps_cur_slice->u1_mbaff_frame_flag; |
| WORD16 i2_mv_x0, i2_mv_y0, i2_mv_x1, i2_mv_y1; |
| UWORD8 u1_mb_partw, u1_mb_parth; |
| UWORD8 i, partition_size, sub_partition; |
| UWORD32 *pui32_weight_ofsts = NULL; |
| directmv_t s_mvdirect; |
| const UWORD8 *pu1_mb_parth = (const UWORD8 *)gau1_ih264d_mb_parth; |
| const UWORD8 *pu1_mb_partw = (const UWORD8 *)gau1_ih264d_mb_partw; |
| WORD8 c_refFrm0, c_refFrm1; |
| UWORD8 u1_ref_idx0, u1_is_cur_mb_fld; |
| UWORD32 pic0_poc, pic1_poc, cur_poc; |
| WORD32 ret = 0; |
| |
| u1_is_cur_mb_fld = ps_cur_mb_info->u1_mb_field_decodingflag; |
| ps_pic_buff1 = ps_dec->ps_ref_pic_buf_lx[1][0]; |
| |
| /**********************************************************************/ |
| /* Call the function which gets the number of partitions and */ |
| /* partition info of colocated Mb */ |
| /**********************************************************************/ |
| ps_dec->pf_parse_mvdirect(ps_dec, ps_dec->ps_col_pic, &s_mvdirect, u1_wd_x, |
| ps_dec->i4_submb_ofst, ps_cur_mb_info); |
| ps_col_pic = ps_dec->ps_col_pic; |
| |
| for(i = 0; i < s_mvdirect.i1_num_partitions; i++) |
| { |
| UWORD8 u1_colz; |
| partition_size = s_mvdirect.i1_partitionsize[i]; |
| u1_sub_mb_num = s_mvdirect.i1_submb_num[i]; |
| ps_mv = ps_col_pic->ps_mv + s_mvdirect.i4_mv_indices[i]; |
| |
| /* This should be removed to catch unitialized memory read */ |
| u1_ref_idx0 = 0; |
| |
| sub_partition = partition_size >> 2; |
| partition_size &= 0x3; |
| u1_mb_partw = pu1_mb_partw[partition_size]; |
| u1_mb_parth = pu1_mb_parth[partition_size]; |
| if(sub_partition != 0) |
| { |
| u1_mb_partw >>= 1; |
| u1_mb_parth >>= 1; |
| } |
| c_refFrm0 = ps_mv->i1_ref_frame[0]; |
| c_refFrm1 = ps_mv->i1_ref_frame[1]; |
| |
| if((c_refFrm0 == -1) && (c_refFrm1 == -1)) |
| { |
| u1_ref_idx0 = 0; |
| ps_pic_buff0 = ps_dec->ps_ref_pic_buf_lx[0][0]; |
| if(u1_mbaff && u1_is_cur_mb_fld) |
| { |
| if(ps_cur_mb_info->u1_topmb) |
| { |
| pic0_poc = ps_pic_buff0->i4_top_field_order_cnt; |
| pic1_poc = ps_pic_buff1->i4_top_field_order_cnt; |
| cur_poc = ps_dec->ps_cur_pic->i4_top_field_order_cnt; |
| } |
| else |
| { |
| pic1_poc = ps_pic_buff1->i4_bottom_field_order_cnt; |
| cur_poc = ps_dec->ps_cur_pic->i4_bottom_field_order_cnt; |
| ps_pic_buff1 = ps_dec->ps_ref_pic_buf_lx[1][MAX_REF_BUFS]; |
| pic0_poc = ps_pic_buff0->i4_bottom_field_order_cnt; |
| ps_pic_buff0 = ps_dec->ps_ref_pic_buf_lx[0][MAX_REF_BUFS]; |
| } |
| } |
| else |
| { |
| pic0_poc = ps_pic_buff0->i4_avg_poc; |
| pic1_poc = ps_pic_buff1->i4_avg_poc; |
| cur_poc = ps_dec->ps_cur_pic->i4_poc; |
| } |
| } |
| else |
| { |
| UWORD8 uc_i, u1_num_frw_ref_pics; |
| UWORD8 buf_id, u1_pic_type; |
| buf_id = ps_mv->u1_col_ref_pic_idx; |
| u1_pic_type = ps_mv->u1_pic_type; |
| if(ps_dec->ps_cur_slice->u1_field_pic_flag) |
| { |
| if(s_mvdirect.u1_vert_mv_scale == FRM_TO_FLD) |
| { |
| u1_pic_type = TOP_FLD; |
| if(ps_dec->ps_cur_slice->u1_bottom_field_flag) |
| u1_pic_type = BOT_FLD; |
| } |
| } |
| u1_num_frw_ref_pics = |
| ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[0]; |
| |
| for(uc_i = 0; uc_i < u1_num_frw_ref_pics; uc_i++) |
| { |
| if(ps_dec->ps_cur_slice->u1_field_pic_flag) |
| { |
| if(ps_dec->ps_ref_pic_buf_lx[0][uc_i]->u1_mv_buf_id == buf_id) |
| { |
| if(ps_dec->ps_ref_pic_buf_lx[0][uc_i]->u1_pic_type |
| == u1_pic_type) |
| { |
| u1_ref_idx0 = uc_i; |
| break; |
| } |
| } |
| } |
| else |
| { |
| if(ps_dec->ps_ref_pic_buf_lx[0][uc_i]->u1_mv_buf_id == buf_id) |
| { |
| u1_ref_idx0 = uc_i; |
| break; |
| } |
| } |
| } |
| |
| ps_pic_buff0 = ps_dec->ps_ref_pic_buf_lx[0][u1_ref_idx0]; |
| ps_pic_buff1 = ps_dec->ps_ref_pic_buf_lx[1][0]; |
| |
| if(u1_mbaff && u1_is_cur_mb_fld) |
| { |
| pic0_poc = ps_pic_buff0->i4_top_field_order_cnt; |
| u1_ref_idx0 <<= 1; |
| if(s_mvdirect.u1_vert_mv_scale == ONE_TO_ONE) |
| { |
| if(u1_pic_type == BOT_FLD) |
| { |
| pic0_poc = ps_pic_buff0->i4_bottom_field_order_cnt; |
| ps_pic_buff0 = ps_dec->ps_ref_pic_buf_lx[0][(u1_ref_idx0 |
| >> 1) + MAX_REF_BUFS]; |
| if(ps_cur_mb_info->u1_topmb) |
| u1_ref_idx0++; |
| } |
| else |
| { |
| if(1 - ps_cur_mb_info->u1_topmb) |
| u1_ref_idx0++; |
| } |
| } |
| if(s_mvdirect.u1_vert_mv_scale == FRM_TO_FLD) |
| { |
| if(1 - ps_cur_mb_info->u1_topmb) |
| { |
| pic0_poc = ps_pic_buff0->i4_bottom_field_order_cnt; |
| ps_pic_buff0 = ps_dec->ps_ref_pic_buf_lx[0][(u1_ref_idx0 |
| >> 1) + MAX_REF_BUFS]; |
| } |
| } |
| if(ps_cur_mb_info->u1_topmb) |
| { |
| pic1_poc = ps_pic_buff1->i4_top_field_order_cnt; |
| cur_poc = ps_dec->ps_cur_pic->i4_top_field_order_cnt; |
| } |
| else |
| { |
| pic1_poc = ps_pic_buff1->i4_bottom_field_order_cnt; |
| cur_poc = ps_dec->ps_cur_pic->i4_bottom_field_order_cnt; |
| ps_pic_buff1 = ps_dec->ps_ref_pic_buf_lx[1][MAX_REF_BUFS]; |
| } |
| } |
| else |
| { |
| pic0_poc = ps_pic_buff0->i4_avg_poc; |
| pic1_poc = ps_pic_buff1->i4_avg_poc; |
| cur_poc = ps_dec->ps_cur_pic->i4_poc; |
| } |
| } |
| { |
| WORD16 i16_td; |
| |
| if(c_refFrm0 >= 0) |
| { |
| i2_mv_x0 = ps_mv->i2_mv[0]; |
| i2_mv_y0 = ps_mv->i2_mv[1]; |
| } |
| else if(c_refFrm1 >= 0) |
| { |
| i2_mv_x0 = ps_mv->i2_mv[2]; |
| i2_mv_y0 = ps_mv->i2_mv[3]; |
| } |
| else |
| { |
| i2_mv_x0 = 0; |
| i2_mv_y0 = 0; |
| } |
| /* If FRM_TO_FLD or FLD_TO_FRM scale the "y" component of the colocated Mv*/ |
| if(s_mvdirect.u1_vert_mv_scale == FRM_TO_FLD) |
| { |
| i2_mv_y0 /= 2; |
| } |
| else if(s_mvdirect.u1_vert_mv_scale == FLD_TO_FRM) |
| { |
| i2_mv_y0 *= 2; |
| } |
| |
| i16_td = pic1_poc - pic0_poc; |
| if((ps_pic_buff0->u1_is_short == 0) || (i16_td == 0)) |
| { |
| i2_mv_x1 = 0; |
| i2_mv_y1 = 0; |
| } |
| else |
| { |
| WORD16 i16_tb, i16_tx, i2_dist_scale_factor, i16_temp; |
| |
| i16_td = CLIP3(-128, 127, i16_td); |
| i16_tb = cur_poc - pic0_poc; |
| i16_tb = CLIP3(-128, 127, i16_tb); |
| |
| 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)); |
| i16_temp = (i2_mv_x0 * i2_dist_scale_factor + 128) >> 8; |
| i2_mv_x1 = i16_temp - i2_mv_x0; |
| i2_mv_x0 = i16_temp; |
| |
| i16_temp = (i2_mv_y0 * i2_dist_scale_factor + 128) >> 8; |
| i2_mv_y1 = i16_temp - i2_mv_y0; |
| i2_mv_y0 = i16_temp; |
| } |
| { |
| mv_pred_t *ps_mv; |
| |
| /*u1_sub_mb_x = u1_sub_mb_num & 0x03; |
| uc_sub_mb_y = u1_sub_mb_num >> 2;*/ |
| if(ps_dec->ps_cur_pps->u1_wted_bipred_idc) |
| { |
| UWORD8 u1_idx = |
| u1_ref_idx0 |
| * ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1]; |
| UWORD8 u1_scale_ref = u1_mbaff && u1_is_cur_mb_fld; |
| if(u1_scale_ref) |
| u1_idx >>= 1; |
| pui32_weight_ofsts = (UWORD32*)&ps_dec->pu4_wt_ofsts[2 |
| * X3(u1_idx)]; |
| if(u1_scale_ref |
| && (ps_dec->ps_cur_pps->u1_wted_bipred_idc |
| == 2)) |
| { |
| WORD16 i2_ref_idx; |
| i2_ref_idx = u1_ref_idx0; |
| i2_ref_idx *= |
| (ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1] |
| << 1); |
| if(!ps_cur_mb_info->u1_topmb) |
| i2_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); |
| pui32_weight_ofsts = |
| (UWORD32*)&ps_dec->pu4_mbaff_wt_mat[2 |
| * X3(i2_ref_idx)]; |
| } |
| } |
| { |
| pred_info_pkd_t *ps_pred_pkd; |
| WORD16 i2_mv[2]; |
| WORD8 i1_ref_idx= 0; |
| |
| i2_mv[0] = i2_mv_x0; |
| i2_mv[1] = i2_mv_y0; |
| |
| ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx; |
| ih264d_fill_pred_info(i2_mv,u1_mb_partw,u1_mb_parth,u1_sub_mb_num,PRED_L0 | PRED_L1, |
| ps_pred_pkd,ps_pic_buff0->u1_pic_buf_id,i1_ref_idx,pui32_weight_ofsts, |
| ps_pic_buff0->u1_pic_type); |
| ps_dec->u4_pred_info_pkd_idx++; |
| ps_cur_mb_info->u1_num_pred_parts++; |
| |
| |
| } |
| { |
| pred_info_pkd_t *ps_pred_pkd; |
| WORD16 i2_mv[2]; |
| WORD8 i1_ref_idx= 0; |
| |
| i2_mv[0] = i2_mv_x1; |
| i2_mv[1] = i2_mv_y1; |
| |
| ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx; |
| ih264d_fill_pred_info(i2_mv,u1_mb_partw,u1_mb_parth,u1_sub_mb_num,PRED_L0 | PRED_L1, |
| ps_pred_pkd,ps_pic_buff1->u1_pic_buf_id,i1_ref_idx,pui32_weight_ofsts, |
| ps_pic_buff1->u1_pic_type); |
| ps_dec->u4_pred_info_pkd_idx++; |
| ps_cur_mb_info->u1_num_pred_parts++; |
| |
| |
| } |
| |
| /* Replication optimisation */ |
| s_temp_mv_pred.i2_mv[0] = i2_mv_x0; |
| s_temp_mv_pred.i2_mv[1] = i2_mv_y0; |
| s_temp_mv_pred.i2_mv[2] = i2_mv_x1; |
| s_temp_mv_pred.i2_mv[3] = i2_mv_y1; |
| s_temp_mv_pred.i1_ref_frame[0] = u1_ref_idx0; |
| s_temp_mv_pred.i1_ref_frame[1] = 0; |
| s_temp_mv_pred.u1_col_ref_pic_idx = ps_pic_buff0->u1_mv_buf_id; |
| s_temp_mv_pred.u1_pic_type = ps_pic_buff0->u1_pic_type; |
| ps_mv = ps_dec->ps_mv_cur + (u1_mb_num << 4) + u1_sub_mb_num; |
| |
| { |
| WORD16 i2_mv_x = 0, i2_mv_y = 0; |
| UWORD8 u1_packed_mb_sub_mb_mode = |
| sub_partition ? (s_mvdirect.i1_partitionsize[i]) : ((s_mvdirect.i1_partitionsize[i]) |
| << 2); |
| |
| if(c_refFrm0 >= 0) |
| { |
| i2_mv_x = i2_mv_x0; |
| i2_mv_y = i2_mv_y0; |
| } |
| else |
| { |
| i2_mv_x = i2_mv_x1; |
| i2_mv_y = i2_mv_y1; |
| } |
| |
| u1_colz = |
| (ps_cur_mb_info->u1_mb_field_decodingflag << 1) |
| | ((u1_ref_idx0 == 0) |
| && (ABS(i2_mv_x) |
| <= 1) |
| && (ABS(i2_mv_y) |
| <= 1)); |
| u1_colz |= (u1_packed_mb_sub_mb_mode << 4); |
| } |
| ih264d_rep_mv_colz(ps_dec, &s_temp_mv_pred, ps_mv, u1_sub_mb_num, |
| u1_colz, u1_mb_parth, u1_mb_partw); |
| } |
| } |
| } |
| /* return value set to UWORD8 to make it homogeneous */ |
| /* with decodespatialdirect */ |
| return OK; |
| } |
| |
| void ih264d_convert_frm_to_fld_list(struct pic_buffer_t *ps_ref_pic_buf_lx, |
| UWORD8 *pu1_L0, |
| dec_struct_t *ps_dec, |
| UWORD8 u1_num_short_term_bufs) |
| { |
| UWORD8 uc_count = *pu1_L0, i, uc_l1, uc_lx, j; |
| struct pic_buffer_t *ps_ref_lx[2], *ps_ref_pic_lx; |
| UWORD8 u1_bottom_field_flag; |
| dec_slice_params_t *ps_cur_slice; |
| UWORD8 u1_ref[2], u1_fld[2], u1_same_fld, u1_op_fld; |
| UWORD32 ui_half_num_of_sub_mbs; |
| |
| uc_l1 = 0; |
| uc_lx = 0; |
| ps_cur_slice = ps_dec->ps_cur_slice; |
| ps_ref_pic_lx = ps_ref_pic_buf_lx - MAX_REF_BUFS; |
| ps_ref_lx[0] = ps_ref_pic_buf_lx; |
| ps_ref_lx[1] = ps_ref_pic_buf_lx; |
| u1_bottom_field_flag = ps_cur_slice->u1_bottom_field_flag; |
| ui_half_num_of_sub_mbs = ((ps_dec->u2_pic_ht * ps_dec->u2_pic_wd) >> 5); |
| if(u1_bottom_field_flag) |
| { |
| u1_ref[0] = BOT_REF; |
| u1_ref[1] = TOP_REF; |
| u1_fld[0] = BOT_FLD; |
| u1_fld[1] = TOP_FLD; |
| u1_same_fld = BOT_FLD; |
| u1_op_fld = TOP_FLD; |
| } |
| else |
| { |
| u1_ref[0] = TOP_REF; |
| u1_ref[1] = BOT_REF; |
| u1_fld[0] = TOP_FLD; |
| u1_fld[1] = BOT_FLD; |
| u1_same_fld = TOP_FLD; |
| u1_op_fld = BOT_FLD; |
| } |
| |
| /* Create the field list starting with all the short term */ |
| /* frames followed by all the long term frames. No long term */ |
| /* reference field should have a list idx less than a short */ |
| /* term reference field during initiailization. */ |
| |
| for(j = 0; j < 2; j++) |
| { |
| i = ((j == 0) ? 0 : u1_num_short_term_bufs); |
| uc_count = ((j == 0) ? u1_num_short_term_bufs : *pu1_L0); |
| for(; i < uc_count; i++, ps_ref_lx[0]++) |
| { |
| /* Search field of same parity in Frame list */ |
| if((ps_ref_lx[0]->u1_pic_type & u1_ref[0])) // || ((ps_ref_lx[0]->u1_picturetype & 0x3) == 0)) |
| { |
| /* Insert PIC of same parity in RefPicList */ |
| ih264d_insert_pic_in_ref_pic_listx(ps_ref_pic_lx, ps_ref_lx[0]); |
| ps_ref_pic_lx->i4_pic_num = (ps_ref_pic_lx->i4_pic_num * 2 + 1); |
| ps_ref_pic_lx->u1_long_term_pic_num = |
| (ps_ref_pic_lx->u1_long_term_frm_idx * 2 + 1); |
| ps_ref_pic_lx->u1_pic_type = u1_same_fld; |
| if(u1_fld[0] & BOT_FLD) |
| { |
| ps_ref_pic_lx->u1_pic_type = BOT_FLD; |
| ps_ref_pic_lx->pu1_buf1 += ps_ref_pic_lx->u2_frm_wd_y; |
| ps_ref_pic_lx->pu1_buf2 += ps_ref_pic_lx->u2_frm_wd_uv; |
| ps_ref_pic_lx->pu1_buf3 += ps_ref_pic_lx->u2_frm_wd_uv; |
| if(ps_ref_pic_lx->u1_picturetype & 0x3) |
| { |
| ps_ref_pic_lx->pu1_col_zero_flag += ui_half_num_of_sub_mbs; |
| ps_ref_pic_lx->ps_mv += ui_half_num_of_sub_mbs; |
| } |
| ps_ref_pic_lx->i4_poc = |
| ps_ref_pic_lx->i4_bottom_field_order_cnt; |
| ps_ref_pic_lx->i4_avg_poc = |
| ps_ref_pic_lx->i4_bottom_field_order_cnt; |
| } |
| else |
| { |
| ps_ref_pic_lx->u1_pic_type = TOP_FLD; |
| ps_ref_pic_lx->i4_poc = ps_ref_pic_lx->i4_top_field_order_cnt; |
| ps_ref_pic_lx->i4_avg_poc = |
| ps_ref_pic_lx->i4_top_field_order_cnt; |
| } |
| |
| ps_ref_pic_lx++; |
| uc_lx++; |
| /* Find field of opposite parity */ |
| if(uc_l1 < uc_count && ps_ref_lx[1]) |
| { |
| while(!(ps_ref_lx[1]->u1_pic_type & u1_ref[1])) |
| { |
| ps_ref_lx[1]++; |
| uc_l1++; |
| if(uc_l1 >= uc_count) |
| ps_ref_lx[1] = 0; |
| if(!ps_ref_lx[1]) |
| break; |
| } |
| |
| if(ps_ref_lx[1]) |
| { |
| uc_l1++; |
| ih264d_insert_pic_in_ref_pic_listx(ps_ref_pic_lx, |
| ps_ref_lx[1]); |
| ps_ref_pic_lx->u1_pic_type = u1_op_fld; |
| ps_ref_pic_lx->i4_pic_num = (ps_ref_pic_lx->i4_pic_num * 2); |
| ps_ref_pic_lx->u1_long_term_pic_num = |
| (ps_ref_pic_lx->u1_long_term_frm_idx * 2); |
| if(u1_fld[1] & BOT_FLD) |
| { |
| ps_ref_pic_lx->u1_pic_type = BOT_FLD; |
| ps_ref_pic_lx->pu1_buf1 += ps_ref_pic_lx->u2_frm_wd_y; |
| ps_ref_pic_lx->pu1_buf2 += ps_ref_pic_lx->u2_frm_wd_uv; |
| ps_ref_pic_lx->pu1_buf3 += ps_ref_pic_lx->u2_frm_wd_uv; |
| if(ps_ref_pic_lx->u1_picturetype & 0x3) |
| { |
| ps_ref_pic_lx->pu1_col_zero_flag += |
| ui_half_num_of_sub_mbs; |
| ps_ref_pic_lx->ps_mv += ui_half_num_of_sub_mbs; |
| } |
| ps_ref_pic_lx->i4_poc = |
| ps_ref_pic_lx->i4_bottom_field_order_cnt; |
| ps_ref_pic_lx->i4_avg_poc = |
| ps_ref_pic_lx->i4_bottom_field_order_cnt; |
| } |
| else |
| { |
| ps_ref_pic_lx->u1_pic_type = TOP_FLD; |
| ps_ref_pic_lx->i4_poc = |
| ps_ref_pic_lx->i4_top_field_order_cnt; |
| ps_ref_pic_lx->i4_avg_poc = |
| ps_ref_pic_lx->i4_top_field_order_cnt; |
| } |
| ps_ref_pic_lx++; |
| uc_lx++; |
| ps_ref_lx[1]++; |
| } |
| } |
| } |
| } |
| |
| /* Same parity fields are over, now insert left over opposite parity fields */ |
| /** Added if(ps_ref_lx[1]) for error checks */ |
| if(ps_ref_lx[1]) |
| { |
| for(; uc_l1 < uc_count; uc_l1++) |
| { |
| if(ps_ref_lx[1]->u1_pic_type & u1_ref[1]) |
| { |
| /* Insert PIC of opposite parity in RefPicList */ |
| ih264d_insert_pic_in_ref_pic_listx(ps_ref_pic_lx, |
| ps_ref_lx[1]); |
| ps_ref_pic_lx->u1_pic_type = u1_op_fld; |
| ps_ref_pic_lx->i4_pic_num = (ps_ref_pic_lx->i4_pic_num * 2); |
| ps_ref_pic_lx->u1_long_term_pic_num = |
| (ps_ref_pic_lx->u1_long_term_frm_idx * 2); |
| if(u1_op_fld == BOT_FLD) |
| { |
| ps_ref_pic_lx->u1_pic_type = BOT_FLD; |
| ps_ref_pic_lx->pu1_buf1 += ps_ref_pic_lx->u2_frm_wd_y; |
| ps_ref_pic_lx->pu1_buf2 += ps_ref_pic_lx->u2_frm_wd_uv; |
| ps_ref_pic_lx->pu1_buf3 += ps_ref_pic_lx->u2_frm_wd_uv; |
| if(ps_ref_pic_lx->u1_picturetype & 0x3) |
| { |
| ps_ref_pic_lx->pu1_col_zero_flag += |
| ui_half_num_of_sub_mbs; |
| ps_ref_pic_lx->ps_mv += ui_half_num_of_sub_mbs; |
| } |
| ps_ref_pic_lx->i4_poc = |
| ps_ref_pic_lx->i4_bottom_field_order_cnt; |
| ps_ref_pic_lx->i4_avg_poc = |
| ps_ref_pic_lx->i4_bottom_field_order_cnt; |
| } |
| else |
| { |
| ps_ref_pic_lx->i4_poc = |
| ps_ref_pic_lx->i4_top_field_order_cnt; |
| ps_ref_pic_lx->i4_avg_poc = |
| ps_ref_pic_lx->i4_top_field_order_cnt; |
| } |
| ps_ref_pic_lx++; |
| uc_lx++; |
| ps_ref_lx[1]++; |
| } |
| } |
| } |
| } |
| *pu1_L0 = uc_lx; |
| } |
| |
| void ih264d_convert_frm_mbaff_list(dec_struct_t *ps_dec) |
| { |
| struct pic_buffer_t **ps_ref_pic_lx; |
| UWORD8 u1_max_ref_idx, idx; |
| UWORD16 u2_frm_wd_y, u2_frm_wd_uv; |
| struct pic_buffer_t **ps_ref_pic_buf_lx; |
| UWORD32 u4_half_num_of_sub_mbs = ((ps_dec->u2_pic_ht * ps_dec->u2_pic_wd) >> 5); |
| |
| ps_ref_pic_buf_lx = ps_dec->ps_ref_pic_buf_lx[0]; |
| ps_ref_pic_lx = ps_dec->ps_ref_pic_buf_lx[0]; |
| u1_max_ref_idx = ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[0]; |
| for(idx = 0; idx < u1_max_ref_idx; idx++) |
| { |
| ps_ref_pic_lx[idx]->u1_pic_type = TOP_FLD; |
| ps_ref_pic_lx[idx]->i4_poc = ps_ref_pic_lx[idx]->i4_top_field_order_cnt; |
| |
| } |
| u2_frm_wd_y = ps_dec->u2_frm_wd_y; |
| u2_frm_wd_uv = ps_dec->u2_frm_wd_uv; |
| |
| for(idx = 0; idx < u1_max_ref_idx; idx++) |
| { |
| *ps_ref_pic_lx[idx + MAX_REF_BUFS] = *ps_ref_pic_buf_lx[idx]; |
| ps_ref_pic_lx[idx + MAX_REF_BUFS]->pu1_buf1 = |
| ps_ref_pic_buf_lx[idx]->pu1_buf1 + u2_frm_wd_y; |
| ps_ref_pic_lx[idx + MAX_REF_BUFS]->pu1_buf2 = |
| ps_ref_pic_buf_lx[idx]->pu1_buf2 + u2_frm_wd_uv; |
| ps_ref_pic_lx[idx + MAX_REF_BUFS]->pu1_buf3 = |
| ps_ref_pic_buf_lx[idx]->pu1_buf3 + u2_frm_wd_uv; |
| |
| ps_ref_pic_lx[idx + MAX_REF_BUFS]->u1_pic_type = BOT_FLD; |
| ps_ref_pic_lx[idx + MAX_REF_BUFS]->i4_poc = |
| ps_ref_pic_buf_lx[idx]->i4_bottom_field_order_cnt; |
| if(ps_ref_pic_buf_lx[idx]->u1_picturetype & 0x3) |
| { |
| ps_ref_pic_lx[idx + MAX_REF_BUFS]->pu1_col_zero_flag = |
| ps_ref_pic_buf_lx[idx]->pu1_col_zero_flag |
| + u4_half_num_of_sub_mbs; |
| ps_ref_pic_lx[idx + MAX_REF_BUFS]->ps_mv = |
| ps_ref_pic_buf_lx[idx]->ps_mv + u4_half_num_of_sub_mbs; |
| } |
| } |
| |
| if(ps_dec->u1_B) |
| { |
| ps_ref_pic_buf_lx = ps_dec->ps_ref_pic_buf_lx[1]; |
| ps_ref_pic_lx = ps_dec->ps_ref_pic_buf_lx[1]; |
| u1_max_ref_idx = ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1]; |
| for(idx = 0; idx < u1_max_ref_idx; idx++) |
| { |
| ps_ref_pic_lx[idx]->u1_pic_type = TOP_FLD; |
| ps_ref_pic_lx[idx]->i4_poc = ps_ref_pic_lx[idx]->i4_top_field_order_cnt; |
| |
| } |
| |
| for(idx = 0; idx < u1_max_ref_idx; idx++) |
| { |
| *ps_ref_pic_lx[idx + MAX_REF_BUFS] = *ps_ref_pic_buf_lx[idx]; |
| ps_ref_pic_lx[idx + MAX_REF_BUFS]->pu1_buf1 = |
| ps_ref_pic_buf_lx[idx]->pu1_buf1 + u2_frm_wd_y; |
| ps_ref_pic_lx[idx + MAX_REF_BUFS]->pu1_buf2 = |
| ps_ref_pic_buf_lx[idx]->pu1_buf2 + u2_frm_wd_uv; |
| ps_ref_pic_lx[idx + MAX_REF_BUFS]->pu1_buf3 = |
| ps_ref_pic_buf_lx[idx]->pu1_buf3 + u2_frm_wd_uv; |
| ps_ref_pic_lx[idx + MAX_REF_BUFS]->u1_pic_type = BOT_FLD; |
| ps_ref_pic_lx[idx + MAX_REF_BUFS]->i4_poc = |
| ps_ref_pic_buf_lx[idx]->i4_bottom_field_order_cnt; |
| |
| if(ps_ref_pic_buf_lx[idx]->u1_picturetype & 0x3) |
| { |
| ps_ref_pic_lx[idx + MAX_REF_BUFS]->pu1_col_zero_flag = |
| ps_ref_pic_buf_lx[idx]->pu1_col_zero_flag |
| + u4_half_num_of_sub_mbs; |
| ps_ref_pic_lx[idx + MAX_REF_BUFS]->ps_mv = |
| ps_ref_pic_buf_lx[idx]->ps_mv |
| + u4_half_num_of_sub_mbs; |
| } |
| } |
| } |
| } |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_init_ref_idx_lx_b \endif |
| * |
| * \brief |
| * Initializes forward and backward refernce lists for B slice decoding. |
| * |
| * |
| * \return |
| * 0 on Success and Error code otherwise |
| ************************************************************************** |
| */ |
| void ih264d_init_ref_idx_lx_b(dec_struct_t *ps_dec) |
| { |
| struct pic_buffer_t *ps_ref_pic_buf_lx; |
| dpb_manager_t *ps_dpb_mgr; |
| struct dpb_info_t *ps_next_dpb; |
| WORD32 i_cur_poc, i_max_st_poc, i_min_st_poc, i_ref_poc, i_temp_poc; |
| WORD8 i; |
| UWORD8 u1_max_lt_index, u1_min_lt_index; |
| UWORD32 u4_lt_index; |
| UWORD8 u1_field_pic_flag; |
| dec_slice_params_t *ps_cur_slice; |
| UWORD8 u1_L0, u1_L1; |
| UWORD8 u1_num_short_term_bufs; |
| UWORD8 u1_max_ref_idx_l0, u1_max_ref_idx_l1; |
| |
| ps_cur_slice = ps_dec->ps_cur_slice; |
| u1_field_pic_flag = ps_cur_slice->u1_field_pic_flag; |
| u1_max_ref_idx_l0 = ps_cur_slice->u1_num_ref_idx_lx_active[0] |
| << u1_field_pic_flag; |
| u1_max_ref_idx_l1 = ps_cur_slice->u1_num_ref_idx_lx_active[1] |
| << u1_field_pic_flag; |
| |
| ps_dpb_mgr = ps_dec->ps_dpb_mgr; |
| /* Get the current POC */ |
| i_cur_poc = ps_dec->ps_cur_pic->i4_poc; |
| |
| /* Get MaxStPOC,MinStPOC,MaxLt,MinLt */ |
| i_max_st_poc = i_cur_poc; |
| i_min_st_poc = i_cur_poc; |
| u1_max_lt_index = MAX_REF_BUFS + 1; |
| u1_min_lt_index = MAX_REF_BUFS + 1; |
| /* Start from ST head */ |
| ps_next_dpb = ps_dpb_mgr->ps_dpb_st_head; |
| for(i = 0; i < ps_dpb_mgr->u1_num_st_ref_bufs; i++) |
| { |
| i_ref_poc = ps_next_dpb->ps_pic_buf->i4_poc; |
| if(i_ref_poc < i_cur_poc) |
| { |
| /* RefPic Buf POC is before Current POC in display order */ |
| i_min_st_poc = MIN(i_min_st_poc, i_ref_poc); |
| } |
| else |
| { |
| /* RefPic Buf POC is after Current POC in display order */ |
| i_max_st_poc = MAX(i_max_st_poc, i_ref_poc); |
| } |
| |
| /* Chase the next link */ |
| ps_next_dpb = ps_next_dpb->ps_prev_short; |
| } |
| |
| /* Start from LT head */ |
| ps_next_dpb = ps_dpb_mgr->ps_dpb_ht_head; |
| if(ps_next_dpb) |
| { |
| u1_max_lt_index = ps_next_dpb->u1_lt_idx; |
| u1_min_lt_index = ps_next_dpb->u1_lt_idx; |
| } |
| for(i = 0; i < ps_dpb_mgr->u1_num_lt_ref_bufs; i++) |
| { |
| u4_lt_index = ps_next_dpb->u1_lt_idx; |
| u1_max_lt_index = (UWORD8)(MAX(u1_max_lt_index, u4_lt_index)); |
| u1_min_lt_index = (UWORD8)(MIN(u1_min_lt_index, u4_lt_index)); |
| |
| /* Chase the next link */ |
| ps_next_dpb = ps_next_dpb->ps_prev_long; |
| } |
| |
| /* 1. Initialize refIdxL0 */ |
| u1_L0 = 0; |
| if(u1_field_pic_flag) |
| { |
| ps_ref_pic_buf_lx = ps_dpb_mgr->ps_init_dpb[0][0]; |
| ps_ref_pic_buf_lx += MAX_REF_BUFS; |
| i_temp_poc = i_cur_poc; |
| } |
| else |
| { |
| ps_ref_pic_buf_lx = ps_dpb_mgr->ps_init_dpb[0][0]; |
| i_temp_poc = i_cur_poc - 1; |
| } |
| /* Arrange all short term buffers in output order as given by POC */ |
| /* 1.1 Arrange POC's less than CurrPOC in the descending POC order starting |
| from (CurrPOC - 1)*/ |
| for(; i_temp_poc >= i_min_st_poc; i_temp_poc--) |
| { |
| /* Start from ST head */ |
| ps_next_dpb = ps_dpb_mgr->ps_dpb_st_head; |
| for(i = 0; i < ps_dpb_mgr->u1_num_st_ref_bufs; i++) |
| { |
| if((WORD32)ps_next_dpb->ps_pic_buf->i4_poc == i_temp_poc) |
| { |
| /* Copy info in pic buffer */ |
| ih264d_insert_pic_in_ref_pic_listx(ps_ref_pic_buf_lx, |
| ps_next_dpb->ps_pic_buf); |
| ps_ref_pic_buf_lx++; |
| u1_L0++; |
| break; |
| } |
| ps_next_dpb = ps_next_dpb->ps_prev_short; |
| } |
| } |
| |
| { |
| /* 1.2. Arrange POC's more than CurrPOC in the ascending POC order starting |
| from (CurrPOC + 1)*/ |
| for(i_temp_poc = i_cur_poc + 1; i_temp_poc <= i_max_st_poc; i_temp_poc++) |
| { |
| /* Start from ST head */ |
| ps_next_dpb = ps_dpb_mgr->ps_dpb_st_head; |
| for(i = 0; i < ps_dpb_mgr->u1_num_st_ref_bufs; i++) |
| { |
| if((WORD32)ps_next_dpb->ps_pic_buf->i4_poc == i_temp_poc) |
| { |
| ih264d_insert_pic_in_ref_pic_listx(ps_ref_pic_buf_lx, |
| ps_next_dpb->ps_pic_buf); |
| ps_ref_pic_buf_lx++; |
| u1_L0++; |
| break; |
| } |
| ps_next_dpb = ps_next_dpb->ps_prev_short; |
| } |
| } |
| } |
| |
| /* 1.3 Arrange all Long term buffers in ascending order, in LongtermIndex */ |
| /* Start from ST head */ |
| |
| u1_num_short_term_bufs = u1_L0; |
| for(u4_lt_index = u1_min_lt_index; u4_lt_index <= u1_max_lt_index; u4_lt_index++) |
| { |
| ps_next_dpb = ps_dpb_mgr->ps_dpb_ht_head; |
| for(i = 0; i < ps_dpb_mgr->u1_num_lt_ref_bufs; i++) |
| { |
| if(ps_next_dpb->u1_lt_idx == u4_lt_index) |
| { |
| ih264d_insert_pic_in_ref_pic_listx(ps_ref_pic_buf_lx, |
| ps_next_dpb->ps_pic_buf); |
| ps_ref_pic_buf_lx->u1_long_term_pic_num = |
| ps_ref_pic_buf_lx->u1_long_term_frm_idx; |
| |
| ps_ref_pic_buf_lx++; |
| u1_L0++; |
| break; |
| } |
| ps_next_dpb = ps_next_dpb->ps_prev_long; |
| } |
| } |
| |
| if(u1_field_pic_flag) |
| { |
| /* Initialize the rest of the entries in the */ |
| /* reference list to handle of errors */ |
| { |
| UWORD8 u1_i; |
| pic_buffer_t *ps_ref_pic; |
| |
| ps_ref_pic = ps_dpb_mgr->ps_init_dpb[0][0] + MAX_REF_BUFS; |
| |
| if(NULL == ps_ref_pic->pu1_buf1) |
| { |
| ps_ref_pic = ps_dec->ps_cur_pic; |
| } |
| for(u1_i = u1_L0; u1_i < u1_max_ref_idx_l0; u1_i++) |
| { |
| *ps_ref_pic_buf_lx = *ps_ref_pic; |
| ps_ref_pic_buf_lx++; |
| } |
| } |
| ih264d_convert_frm_to_fld_list( |
| ps_dpb_mgr->ps_init_dpb[0][0] + MAX_REF_BUFS, &u1_L0, |
| ps_dec, u1_num_short_term_bufs); |
| |
| ps_ref_pic_buf_lx = ps_dpb_mgr->ps_init_dpb[0][0] + u1_L0; |
| } |
| |
| ps_dec->ps_cur_slice->u1_initial_list_size[0] = u1_L0; |
| |
| /* Initialize the rest of the entries in the */ |
| /* reference list to handle of errors */ |
| { |
| UWORD8 u1_i; |
| pic_buffer_t *ps_ref_pic; |
| |
| ps_ref_pic = ps_dpb_mgr->ps_init_dpb[0][0]; |
| |
| if(NULL == ps_ref_pic->pu1_buf1) |
| { |
| ps_ref_pic = ps_dec->ps_cur_pic; |
| } |
| for(u1_i = u1_L0; u1_i < u1_max_ref_idx_l0; u1_i++) |
| { |
| *ps_ref_pic_buf_lx = *ps_ref_pic; |
| ps_ref_pic_buf_lx++; |
| } |
| } |
| { |
| /* 2. Initialize refIdxL1 */ |
| u1_L1 = 0; |
| if(u1_field_pic_flag) |
| { |
| ps_ref_pic_buf_lx = ps_dpb_mgr->ps_init_dpb[1][0] + MAX_REF_BUFS; |
| } |
| else |
| { |
| ps_ref_pic_buf_lx = ps_dpb_mgr->ps_init_dpb[1][0]; |
| } |
| |
| /* 2.1. Arrange POC's more than CurrPOC in the ascending POC order starting |
| from (CurrPOC + 1)*/ |
| for(i_temp_poc = i_cur_poc + 1; i_temp_poc <= i_max_st_poc; i_temp_poc++) |
| { |
| /* Start from ST head */ |
| ps_next_dpb = ps_dpb_mgr->ps_dpb_st_head; |
| for(i = 0; i < ps_dpb_mgr->u1_num_st_ref_bufs; i++) |
| { |
| if((WORD32)ps_next_dpb->ps_pic_buf->i4_poc == i_temp_poc) |
| { |
| ih264d_insert_pic_in_ref_pic_listx(ps_ref_pic_buf_lx, |
| ps_next_dpb->ps_pic_buf); |
| ps_ref_pic_buf_lx++; |
| u1_L1++; |
| break; |
| } |
| ps_next_dpb = ps_next_dpb->ps_prev_short; |
| } |
| } |
| |
| if(u1_field_pic_flag) |
| { |
| i_temp_poc = i_cur_poc; |
| } |
| else |
| { |
| i_temp_poc = i_cur_poc - 1; |
| } |
| |
| /* Arrange all short term buffers in output order as given by POC */ |
| /* 2.2 Arrange POC's less than CurrPOC in the descending POC order starting |
| from (CurrPOC - 1)*/ |
| for(; i_temp_poc >= i_min_st_poc; i_temp_poc--) |
| { |
| /* Start from ST head */ |
| ps_next_dpb = ps_dpb_mgr->ps_dpb_st_head; |
| for(i = 0; i < ps_dpb_mgr->u1_num_st_ref_bufs; i++) |
| { |
| if((WORD32)ps_next_dpb->ps_pic_buf->i4_poc == i_temp_poc) |
| { |
| ih264d_insert_pic_in_ref_pic_listx(ps_ref_pic_buf_lx, |
| ps_next_dpb->ps_pic_buf); |
| ps_ref_pic_buf_lx++; |
| u1_L1++; |
| break; |
| } |
| ps_next_dpb = ps_next_dpb->ps_prev_short; |
| } |
| } |
| |
| /* 2.3 Arrange all Long term buffers in ascending order, in LongtermIndex */ |
| /* Start from ST head */ |
| u1_num_short_term_bufs = u1_L1; |
| |
| for(u4_lt_index = u1_min_lt_index; u4_lt_index <= u1_max_lt_index; |
| u4_lt_index++) |
| { |
| ps_next_dpb = ps_dpb_mgr->ps_dpb_ht_head; |
| for(i = 0; i < ps_dpb_mgr->u1_num_lt_ref_bufs; i++) |
| { |
| if(ps_next_dpb->u1_lt_idx == u4_lt_index) |
| { |
| ih264d_insert_pic_in_ref_pic_listx(ps_ref_pic_buf_lx, |
| ps_next_dpb->ps_pic_buf); |
| ps_ref_pic_buf_lx->u1_long_term_pic_num = |
| ps_ref_pic_buf_lx->u1_long_term_frm_idx; |
| ps_ref_pic_buf_lx++; |
| u1_L1++; |
| break; |
| } |
| ps_next_dpb = ps_next_dpb->ps_prev_long; |
| } |
| } |
| |
| if(u1_field_pic_flag) |
| { |
| /* Initialize the rest of the entries in the */ |
| /* reference list to handle of errors */ |
| { |
| UWORD8 u1_i; |
| pic_buffer_t *ps_ref_pic; |
| |
| ps_ref_pic = ps_dpb_mgr->ps_init_dpb[0][0] + MAX_REF_BUFS; |
| |
| if(NULL == ps_ref_pic->pu1_buf1) |
| { |
| ps_ref_pic = ps_dec->ps_cur_pic; |
| } |
| for(u1_i = u1_L1; u1_i < u1_max_ref_idx_l1; u1_i++) |
| { |
| *ps_ref_pic_buf_lx = *ps_ref_pic; |
| ps_ref_pic_buf_lx++; |
| } |
| } |
| |
| ih264d_convert_frm_to_fld_list( |
| ps_dpb_mgr->ps_init_dpb[1][0] + MAX_REF_BUFS, |
| &u1_L1, ps_dec, u1_num_short_term_bufs); |
| ps_ref_pic_buf_lx = ps_dpb_mgr->ps_init_dpb[1][0] + u1_L1; |
| } |
| |
| ps_dec->ps_cur_slice->u1_initial_list_size[1] = u1_L1; |
| |
| /* Initialize the rest of the entries in the */ |
| /* reference list to handle of errors */ |
| { |
| UWORD8 u1_i; |
| pic_buffer_t *ps_ref_pic; |
| |
| ps_ref_pic = ps_dpb_mgr->ps_init_dpb[0][0]; |
| |
| if(NULL == ps_ref_pic->pu1_buf1) |
| { |
| ps_ref_pic = ps_dec->ps_cur_pic; |
| } |
| for(u1_i = u1_L1; u1_i < u1_max_ref_idx_l1; u1_i++) |
| { |
| *ps_ref_pic_buf_lx = *ps_ref_pic; |
| ps_ref_pic_buf_lx++; |
| } |
| } |
| |
| /* If list0 and list 1 ebtries are same then swap the 0th and 1st entry */ |
| /* of list 1 */ |
| { |
| struct pic_buffer_t *ps_ref_pic1_buf_l0, *ps_ref_pic1_buf_l1; |
| struct pic_buffer_t s_ref_pic1_buf_temp; |
| |
| ps_ref_pic1_buf_l0 = ps_dpb_mgr->ps_init_dpb[0][0]; |
| ps_ref_pic1_buf_l1 = ps_dpb_mgr->ps_init_dpb[1][0]; |
| |
| if((u1_L0 == u1_L1) && (u1_L0 > 1)) |
| { |
| WORD32 i_index, i_swap; |
| |
| i_swap = 1; |
| |
| for(i_index = 0; i_index < u1_L0; i_index++) |
| { |
| if((ps_ref_pic1_buf_l0[i_index]).pu1_buf1 |
| != (ps_ref_pic1_buf_l1[i_index]).pu1_buf1) |
| { |
| i_swap = 0; |
| break; |
| } |
| } |
| if(1 == i_swap) |
| { |
| memcpy(&s_ref_pic1_buf_temp, &ps_ref_pic1_buf_l1[1], |
| sizeof(struct pic_buffer_t)); |
| memcpy(&ps_ref_pic1_buf_l1[1], &ps_ref_pic1_buf_l1[0], |
| sizeof(struct pic_buffer_t)); |
| memcpy(&ps_ref_pic1_buf_l1[0], &s_ref_pic1_buf_temp, |
| sizeof(struct pic_buffer_t)); |
| } |
| } |
| } |
| } |
| } |
| |
| |
| |
| void ih264d_get_implicit_weights(dec_struct_t *ps_dec); |
| |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_one_to_one \endif |
| * |
| * \brief |
| * Initializes forward and backward refernce lists for B slice decoding. |
| * |
| * |
| * \return |
| * 0 on Success and Error code otherwise |
| ************************************************************************** |
| */ |
| void ih264d_one_to_one(dec_struct_t *ps_dec, |
| struct pic_buffer_t *ps_col_pic, |
| directmv_t *ps_direct, |
| UWORD8 u1_wd_x, |
| WORD32 u2_sub_mb_ofst, |
| dec_mb_info_t * ps_cur_mb_info) |
| { |
| UWORD8 *pu1_col_zero_flag_start, u1_col_mb_pred_mode, u1_num_blks, u1_sub_mb_num; |
| UWORD8 u1_init_colzero_flag; |
| UNUSED(ps_cur_mb_info); |
| pu1_col_zero_flag_start = ps_col_pic->pu1_col_zero_flag + u2_sub_mb_ofst; |
| u1_col_mb_pred_mode = pu1_col_zero_flag_start[ps_dec->u1_sub_mb_num]; |
| u1_init_colzero_flag = u1_col_mb_pred_mode & 1; |
| u1_col_mb_pred_mode >>= 6; |
| ps_direct->u1_vert_mv_scale = ONE_TO_ONE; |
| ps_direct->u1_col_zeroflag_change = 0; |
| |
| if(u1_wd_x == MB_SIZE) |
| { |
| ps_dec->u1_currB_type = (!!u1_col_mb_pred_mode); |
| if(u1_col_mb_pred_mode == PRED_16x16) |
| { |
| ps_direct->i1_num_partitions = 1; |
| ps_direct->i4_mv_indices[0] = u2_sub_mb_ofst; |
| ps_direct->i1_submb_num[0] = 0; |
| ps_direct->i1_partitionsize[0] = PRED_16x16; |
| |
| return; |
| } |
| else if(u1_col_mb_pred_mode < PRED_8x8) |
| { |
| ps_direct->i1_num_partitions = 2; |
| ps_direct->i4_mv_indices[0] = u2_sub_mb_ofst; |
| ps_direct->i1_submb_num[0] = 0; |
| ps_direct->i1_partitionsize[0] = u1_col_mb_pred_mode; |
| u1_sub_mb_num = (u1_col_mb_pred_mode == PRED_16x8) ? 8 : 2; |
| ps_direct->i1_submb_num[1] = u1_sub_mb_num; |
| ps_direct->i4_mv_indices[1] = u2_sub_mb_ofst |
| + ps_direct->i1_submb_num[1]; |
| ps_direct->i1_partitionsize[1] = u1_col_mb_pred_mode; |
| if((pu1_col_zero_flag_start[u1_sub_mb_num] & 1) != u1_init_colzero_flag) |
| ps_direct->u1_col_zeroflag_change = 1; |
| return; |
| } |
| else |
| { |
| u1_num_blks = 4; |
| } |
| } |
| else |
| { |
| u1_num_blks = 1; |
| } |
| |
| { |
| const UWORD8 *pu1_top_lt_mb_part_idx; |
| UWORD8 u1_col_sub_mb_pred_mode, uc_blk, u1_sub_blk, u1_submb_col = 0; |
| UWORD8 u1_num_sub_blks, uc_direct8x8inf, *pu1_col_zero_flag, u1_sub_mb_num; |
| const UWORD8 *pu1_num_sub_mb_part = |
| (const UWORD8 *)gau1_ih264d_num_submb_part; |
| UWORD8 i1_num_partitions = 0, partition_size; |
| WORD32 mv_index; |
| const UWORD8 *pu1_top_lt_sub_mb_idx = gau1_ih264d_submb_indx_mod_sp_drct; |
| |
| u1_sub_mb_num = ps_dec->u1_sub_mb_num; |
| uc_direct8x8inf = ps_dec->ps_cur_slice->u1_direct_8x8_inference_flag; |
| pu1_top_lt_mb_part_idx = gau1_ih264d_top_left_mb_part_indx_mod |
| + (PRED_8x8 << 1) + 1; |
| |
| for(uc_blk = 0; uc_blk < u1_num_blks; uc_blk++) |
| { |
| partition_size = PRED_8x8; |
| pu1_top_lt_sub_mb_idx = gau1_ih264d_submb_indx_mod_sp_drct; |
| if(uc_direct8x8inf == 1) |
| { |
| u1_submb_col = u1_sub_mb_num | (u1_sub_mb_num >> 1); |
| mv_index = u2_sub_mb_ofst + u1_submb_col; |
| u1_num_sub_blks = 1; |
| } |
| else |
| { |
| /* colMbPart is either 8x8, 8x4, 4x8, 4x4 */ |
| pu1_col_zero_flag = pu1_col_zero_flag_start + u1_sub_mb_num; |
| u1_col_sub_mb_pred_mode = *pu1_col_zero_flag; |
| u1_col_sub_mb_pred_mode = (u1_col_sub_mb_pred_mode & 0x30) >> 4; |
| partition_size = (UWORD8)((u1_col_sub_mb_pred_mode) |
| | (PRED_8x8 << 2)); |
| mv_index = u2_sub_mb_ofst + u1_sub_mb_num; |
| pu1_top_lt_sub_mb_idx += (u1_col_sub_mb_pred_mode << 1); |
| u1_num_sub_blks = pu1_num_sub_mb_part[u1_col_sub_mb_pred_mode]; |
| |
| } |
| |
| for(u1_sub_blk = 0; u1_sub_blk < u1_num_sub_blks; |
| u1_sub_blk++, pu1_top_lt_sub_mb_idx++) |
| { |
| u1_sub_mb_num += *pu1_top_lt_sub_mb_idx; |
| mv_index += *pu1_top_lt_sub_mb_idx; |
| ps_direct->i4_mv_indices[i1_num_partitions] = mv_index; |
| ps_direct->i1_submb_num[i1_num_partitions] = u1_sub_mb_num; |
| ps_direct->i1_partitionsize[i1_num_partitions] = partition_size; |
| i1_num_partitions++; |
| if(!uc_direct8x8inf) |
| u1_submb_col = u1_sub_mb_num; |
| if((pu1_col_zero_flag_start[u1_submb_col] & 1) |
| != u1_init_colzero_flag) |
| ps_direct->u1_col_zeroflag_change = 1; |
| } |
| u1_sub_mb_num = *pu1_top_lt_mb_part_idx++; |
| } |
| ps_direct->i1_num_partitions = i1_num_partitions; |
| } |
| } |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_mbaff_cross_pmbair \endif |
| * |
| * \brief |
| * Initializes forward and backward refernce lists for B slice decoding. |
| * |
| * |
| * \return |
| * 0 on Success and Error code otherwise |
| ************************************************************************** |
| */ |
| void ih264d_mbaff_cross_pmbair(dec_struct_t *ps_dec, |
| struct pic_buffer_t *ps_col_pic, |
| directmv_t *ps_direct, |
| UWORD8 u1_wd_x, |
| WORD32 u2_sub_mb_ofst, |
| dec_mb_info_t * ps_cur_mb_info) |
| { |
| UWORD8 *pu1_col_zero_flag_start, *pu1_col_zero_flag, u1_sub_mb_num, |
| uc_sub_mb_num_col; |
| UWORD8 *pu1_col_zero_flag_right_half; |
| WORD32 i4_force_8X8; |
| UWORD8 u1_num_blks, u1_col_mb_pred_mode, uc_blk, u1_col_sub_mb_pred_mode, |
| u1_col_sub_mb_pred_mode_rt; |
| UWORD8 i1_num_partitions = 0, partition_size; |
| |
| WORD32 mv_index; |
| |
| UWORD8 u1_num_sub_blks; |
| UWORD8 u1_is_cur_mb_fld, i; |
| UWORD8 u1_init_colzero_flag; |
| |
| u1_is_cur_mb_fld = ps_cur_mb_info->u1_mb_field_decodingflag; |
| u1_sub_mb_num = ps_dec->u1_sub_mb_num; |
| ps_direct->u1_col_zeroflag_change = 0; |
| /*pu1_col_zero_flag_start = ps_col_pic->pu1_col_zero_flag + u2_sub_mb_ofst; |
| u1_col_mb_pred_mode = pu1_col_zero_flag_start[u1_sub_mb_num]; |
| u1_init_colzero_flag = u1_col_mb_pred_mode & 1; |
| u1_col_mb_pred_mode >>= 6; */ |
| if(0 == u1_is_cur_mb_fld) |
| { |
| ps_direct->u1_vert_mv_scale = FLD_TO_FRM; |
| if(u1_wd_x == MB_SIZE) |
| { |
| pu1_col_zero_flag_start = ps_col_pic->pu1_col_zero_flag |
| + u2_sub_mb_ofst; |
| u1_col_mb_pred_mode = pu1_col_zero_flag_start[0]; |
| u1_init_colzero_flag = u1_col_mb_pred_mode & 1; |
| u1_col_mb_pred_mode >>= 6; |
| |
| |
| if(u1_col_mb_pred_mode & 0x2) |
| { |
| ps_dec->u1_currB_type = 1; |
| if(u1_col_mb_pred_mode == PRED_8x16) |
| { |
| ps_direct->i1_num_partitions = 2; |
| ps_direct->i4_mv_indices[0] = u2_sub_mb_ofst; |
| ps_direct->i1_submb_num[0] = 0; |
| ps_direct->i1_partitionsize[0] = PRED_8x16; |
| ps_direct->i4_mv_indices[1] = u2_sub_mb_ofst + 2; |
| ps_direct->i1_submb_num[1] = 2; |
| ps_direct->i1_partitionsize[1] = PRED_8x16; |
| if((pu1_col_zero_flag_start[2] & 1) != u1_init_colzero_flag) |
| ps_direct->u1_col_zeroflag_change = 1; |
| } |
| else |
| { |
| pu1_col_zero_flag = pu1_col_zero_flag_start + u1_sub_mb_num; |
| u1_col_sub_mb_pred_mode = (*pu1_col_zero_flag & 0x10);/* 8x4 or 4x4 mode */ |
| |
| pu1_col_zero_flag_right_half = pu1_col_zero_flag_start |
| + u1_sub_mb_num + 2; |
| u1_col_sub_mb_pred_mode_rt = |
| (*pu1_col_zero_flag_right_half & 0x10);/* 8x4 or 4x4 mode */ |
| |
| i4_force_8X8 = (u1_col_sub_mb_pred_mode) |
| || (u1_col_sub_mb_pred_mode_rt); |
| if(i4_force_8X8) |
| { |
| u1_num_sub_blks = 2; |
| partition_size = PRED_8x8; |
| } |
| else |
| { |
| partition_size = PRED_8x16; |
| u1_num_sub_blks = 1; |
| } |
| |
| for(i = 0; i < 2; i++) |
| { |
| for(uc_blk = 0; uc_blk < u1_num_sub_blks; uc_blk++) |
| { |
| uc_sub_mb_num_col = u1_sub_mb_num | (u1_sub_mb_num >> 1); |
| uc_sub_mb_num_col &= 0x7; |
| mv_index = u2_sub_mb_ofst + uc_sub_mb_num_col; |
| |
| ps_direct->i4_mv_indices[i1_num_partitions] = |
| mv_index; |
| ps_direct->i1_submb_num[i1_num_partitions] = |
| u1_sub_mb_num; |
| ps_direct->i1_partitionsize[i1_num_partitions] = |
| partition_size; |
| i1_num_partitions++; |
| if((pu1_col_zero_flag_start[uc_sub_mb_num_col] & 1) |
| != u1_init_colzero_flag) |
| ps_direct->u1_col_zeroflag_change = 1; |
| u1_sub_mb_num += 8; |
| } |
| u1_sub_mb_num = 2; /* move to second half of Cur MB */ |
| } |
| ps_direct->i1_num_partitions = i1_num_partitions; |
| return; |
| } |
| } |
| else |
| { |
| ps_direct->i1_num_partitions = 1; |
| ps_direct->i4_mv_indices[0] = u2_sub_mb_ofst; |
| ps_direct->i1_submb_num[0] = 0; |
| ps_direct->i1_partitionsize[0] = PRED_16x16; |
| ps_dec->u1_currB_type = 0; |
| return; |
| } |
| } |
| else |
| { |
| uc_sub_mb_num_col = u1_sub_mb_num | (u1_sub_mb_num >> 1); |
| uc_sub_mb_num_col &= 0x7; |
| |
| ps_direct->i4_mv_indices[0] = u2_sub_mb_ofst + uc_sub_mb_num_col; |
| ps_direct->i1_submb_num[0] = u1_sub_mb_num; |
| ps_direct->i1_partitionsize[0] = PRED_8x8; |
| ps_direct->i1_num_partitions = 1; |
| } |
| } |
| else |
| { |
| ps_direct->u1_vert_mv_scale = FRM_TO_FLD; |
| pu1_col_zero_flag_start = ps_col_pic->pu1_col_zero_flag + u2_sub_mb_ofst; |
| u1_init_colzero_flag = pu1_col_zero_flag_start[0] & 1; |
| |
| if(u1_wd_x == MB_SIZE) |
| { |
| UWORD8 u1_submb_col; |
| UWORD8 *puc_colZeroFlagStart_bot_mb, uc_colMbPredMode_bot_mb; |
| |
| pu1_col_zero_flag_start = ps_col_pic->pu1_col_zero_flag |
| + u2_sub_mb_ofst; |
| u1_col_mb_pred_mode = pu1_col_zero_flag_start[u1_sub_mb_num] >> 6; |
| |
| puc_colZeroFlagStart_bot_mb = ps_col_pic->pu1_col_zero_flag |
| + u2_sub_mb_ofst + 16; |
| uc_colMbPredMode_bot_mb = puc_colZeroFlagStart_bot_mb[8] >> 6; |
| |
| i4_force_8X8 = (u1_col_mb_pred_mode & 0x2) |
| || (uc_colMbPredMode_bot_mb & 0x2); |
| if(i4_force_8X8) |
| { |
| u1_num_blks = 2; |
| partition_size = PRED_8x8; |
| } |
| else |
| { |
| u1_num_blks = 1; |
| partition_size = PRED_16x8; |
| } |
| |
| ps_dec->u1_currB_type = 1; |
| /*As this mb is derived from 2 Mbs min no of partitions = 2*/ |
| for(i = 0; i < 2; i++) |
| { |
| |
| pu1_col_zero_flag_start = ps_col_pic->pu1_col_zero_flag |
| + u2_sub_mb_ofst; |
| u1_col_mb_pred_mode = pu1_col_zero_flag_start[u1_sub_mb_num] >> 6; |
| |
| for(uc_blk = 0; uc_blk < u1_num_blks; uc_blk++) |
| { |
| u1_submb_col = (u1_sub_mb_num & 0x7) ? 1 : 0; |
| u1_submb_col += u1_sub_mb_num; |
| mv_index = u2_sub_mb_ofst + u1_submb_col; |
| |
| |
| ps_direct->i4_mv_indices[i1_num_partitions] = mv_index; |
| ps_direct->i1_submb_num[i1_num_partitions] = u1_sub_mb_num; |
| ps_direct->i1_partitionsize[i1_num_partitions] = |
| partition_size; |
| i1_num_partitions++; |
| if((pu1_col_zero_flag_start[u1_submb_col] & 1) |
| != u1_init_colzero_flag) |
| ps_direct->u1_col_zeroflag_change = 1; |
| u1_sub_mb_num += 2; |
| } |
| u1_sub_mb_num = 8; /* move to second half of Cur MB */ |
| u2_sub_mb_ofst += 16;/* move to next Colocated MB */ |
| } |
| ps_direct->i1_num_partitions = i1_num_partitions; |
| return; |
| } |
| else |
| { |
| uc_sub_mb_num_col = u1_sub_mb_num | (u1_sub_mb_num >> 1); |
| uc_sub_mb_num_col &= 0xb; |
| u2_sub_mb_ofst += (u1_sub_mb_num >> 3) ? 16 : 0; |
| |
| ps_direct->i4_mv_indices[0] = u2_sub_mb_ofst + uc_sub_mb_num_col; |
| ps_direct->i1_submb_num[0] = u1_sub_mb_num; |
| ps_direct->i1_partitionsize[0] = PRED_8x8; |
| ps_direct->i1_num_partitions = 1; |
| return; |
| } |
| } |
| } |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_cal_col_pic \endif |
| * |
| * \brief |
| * Finds the colocated picture. |
| * |
| * |
| * \return |
| * 0 on Success and Error code otherwise |
| ************************************************************************** |
| */ |
| WORD32 ih264d_cal_col_pic(dec_struct_t *ps_dec) |
| { |
| struct pic_buffer_t* ps_col_pic = ps_dec->ps_col_pic; |
| UWORD8 uc_curpictype, uc_colpictype; |
| ps_col_pic = ps_dec->ps_ref_pic_buf_lx[1][0]; |
| uc_curpictype = (ps_dec->ps_cur_pic->u1_picturetype & 0x7); |
| uc_colpictype = (ps_col_pic->u1_picturetype & 0x7); |
| if(uc_curpictype == FRM_PIC) |
| { |
| if(uc_colpictype == FRM_PIC) |
| ps_dec->pf_parse_mvdirect = ih264d_one_to_one; |
| else if(uc_colpictype == COMP_FLD_PAIR) |
| { |
| ps_dec->pf_parse_mvdirect = ih264d_fld_to_frm; |
| if(ps_col_pic->i4_top_field_order_cnt |
| >= ps_col_pic->i4_bottom_field_order_cnt) |
| { |
| struct pic_buffer_t* ps_tempPic = ps_col_pic; |
| UWORD32 ui_half_num_of_sub_mbs = ((ps_dec->u2_pic_ht |
| * ps_dec->u2_pic_wd) >> 5); |
| ps_col_pic = ps_dec->ps_ref_pic_buf_lx[1][MAX_REF_BUFS]; |
| /* memcpy ps_tempPic to ps_col_pic */ |
| *ps_col_pic = *ps_tempPic; |
| ps_col_pic->pu1_buf1 = ps_tempPic->pu1_buf1 |
| + ps_tempPic->u2_frm_wd_y; |
| ps_col_pic->pu1_buf2 = ps_tempPic->pu1_buf2 |
| + ps_tempPic->u2_frm_wd_uv; |
| ps_col_pic->pu1_buf3 = ps_tempPic->pu1_buf3 |
| + ps_tempPic->u2_frm_wd_uv; |
| ps_col_pic->pu1_col_zero_flag = ps_tempPic->pu1_col_zero_flag |
| + ui_half_num_of_sub_mbs; |
| ps_col_pic->ps_mv = ps_tempPic->ps_mv + ui_half_num_of_sub_mbs; |
| |
| |
| ps_col_pic->u1_pic_type = 0;/*complementary reference field pair-refering as frame */ |
| |
| |
| |
| } |
| } |
| else |
| { |
| UWORD32 i4_error_code; |
| i4_error_code = ERROR_DBP_MANAGER_T; |
| // i4_error_code |= 1<<IVD_CORRUPTEDDATA; |
| return i4_error_code; |
| } |
| } |
| else if(uc_curpictype == AFRM_PIC) |
| { |
| ps_dec->pf_parse_mvdirect = ih264d_fld_to_mbaff; |
| } |
| else /* must be a field*/ |
| { |
| if(uc_colpictype == FRM_PIC) |
| ps_dec->pf_parse_mvdirect = ih264d_frm_to_fld; |
| else if(uc_colpictype == AFRM_PIC) |
| ps_dec->pf_parse_mvdirect = ih264d_mbaff_to_fld; |
| else |
| ps_dec->pf_parse_mvdirect = ih264d_one_to_one; |
| } |
| ps_dec->ps_col_pic = ps_col_pic; |
| return OK; |
| } |
| |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_frm_to_fld \endif |
| * |
| * \brief |
| * Initializes forward and backward refernce lists for B slice decoding. |
| * |
| * |
| * \return |
| * 0 on Success and Error code otherwise |
| ************************************************************************** |
| */ |
| void ih264d_frm_to_fld(dec_struct_t *ps_dec, |
| struct pic_buffer_t *ps_col_pic, |
| directmv_t *ps_direct, |
| UWORD8 u1_wd_x, |
| WORD32 u2_sub_mb_ofst, |
| dec_mb_info_t * ps_cur_mb_info) |
| { |
| UWORD8 *pu1_col_zero_flag_start, u1_sub_mb_num; |
| UWORD8 u1_num_blks, u1_col_mb_pred_mode, uc_blk; |
| UWORD8 i1_num_partitions = 0, partition_size, i; |
| WORD32 mv_index; |
| UWORD32 increment; |
| WORD32 i4_force_8X8; |
| UNUSED(ps_cur_mb_info); |
| ps_direct->u1_col_zeroflag_change = 1; |
| ps_direct->u1_vert_mv_scale = FRM_TO_FLD; |
| u1_sub_mb_num = ps_dec->u1_sub_mb_num; |
| |
| /* new calculation specific to this function */ |
| if((ps_col_pic->u1_picturetype & 0x7) == FRM_PIC) |
| { |
| UWORD16 u2_frm_wd_in_mbs = ps_dec->u2_frm_wd_in_mbs; |
| increment = (u2_frm_wd_in_mbs << 4); |
| /*mbAddrCol = mbAddrCol1 */ |
| u2_sub_mb_ofst = (ps_dec->u2_mbx |
| + (2 * ps_dec->u2_mby * u2_frm_wd_in_mbs)) << 4; |
| } |
| else |
| increment = 16; |
| |
| if(u1_wd_x == MB_SIZE) |
| { |
| ps_dec->u1_currB_type = 1; |
| |
| { |
| UWORD8 *puc_colZeroFlagStart_bot_mb, uc_colMbPredMode_bot_mb; |
| |
| pu1_col_zero_flag_start = ps_col_pic->pu1_col_zero_flag |
| + u2_sub_mb_ofst; |
| u1_col_mb_pred_mode = (*pu1_col_zero_flag_start >> 6); |
| |
| puc_colZeroFlagStart_bot_mb = ps_col_pic->pu1_col_zero_flag |
| + u2_sub_mb_ofst + increment; |
| uc_colMbPredMode_bot_mb = (*puc_colZeroFlagStart_bot_mb >> 6); |
| |
| i4_force_8X8 = (u1_col_mb_pred_mode & 0x2) |
| || (uc_colMbPredMode_bot_mb & 0x2); |
| |
| if(i4_force_8X8) |
| { |
| u1_num_blks = 2; |
| partition_size = PRED_8x8; |
| } |
| else |
| { |
| partition_size = PRED_16x8; |
| u1_num_blks = 1; |
| } |
| } |
| |
| /*As this mb is derived from 2 Mbs, min no of partitions = 2*/ |
| for(i = 0; i < 2; i++) |
| { |
| for(uc_blk = 0; uc_blk < u1_num_blks; uc_blk++) |
| { |
| mv_index = u2_sub_mb_ofst + u1_sub_mb_num; |
| mv_index += (u1_sub_mb_num & 0x7) ? 1 : 0; |
| |
| ps_direct->i4_mv_indices[i1_num_partitions] = mv_index; |
| ps_direct->i1_submb_num[i1_num_partitions] = u1_sub_mb_num; |
| ps_direct->i1_partitionsize[i1_num_partitions] = partition_size; |
| i1_num_partitions++; |
| |
| u1_sub_mb_num += 2; |
| } |
| u1_sub_mb_num = 8; /* move to second half of Cur MB */ |
| u2_sub_mb_ofst += increment;/* move to next Colocated MB */ |
| } |
| ps_direct->i1_num_partitions = i1_num_partitions; |
| return; |
| } |
| else |
| { |
| UWORD8 u1_sub_mb_num_col; |
| u1_sub_mb_num_col = u1_sub_mb_num | (u1_sub_mb_num >> 1); |
| u1_sub_mb_num_col &= 0xb; |
| u2_sub_mb_ofst += (u1_sub_mb_num >> 3) ? increment : 0; |
| |
| ps_direct->i4_mv_indices[0] = u2_sub_mb_ofst + u1_sub_mb_num_col; |
| ps_direct->i1_submb_num[0] = u1_sub_mb_num; |
| ps_direct->i1_partitionsize[0] = PRED_8x8; |
| ps_direct->i1_num_partitions = 1; |
| return; |
| } |
| } |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_fld_to_frm \endif |
| * |
| * \brief |
| * Initializes forward and backward refernce lists for B slice decoding. |
| * |
| * |
| * \return |
| * 0 on Success and Error code otherwise |
| ************************************************************************** |
| */ |
| void ih264d_fld_to_frm(dec_struct_t *ps_dec, |
| struct pic_buffer_t *ps_col_pic, |
| directmv_t *ps_direct, |
| UWORD8 u1_wd_x, |
| WORD32 u2_sub_mb_ofst, |
| dec_mb_info_t * ps_cur_mb_info) |
| { |
| UWORD8 *pu1_col_zero_flag_start, *pu1_col_zero_flag, |
| *pu1_col_zero_flag_right_half, u1_sub_mb_num, uc_sub_mb_num_col; |
| UWORD8 u1_col_mb_pred_mode, uc_blk; |
| WORD32 i4_force_8X8; |
| |
| UNUSED(ps_cur_mb_info); |
| ps_direct->u1_vert_mv_scale = FLD_TO_FRM; |
| ps_direct->u1_col_zeroflag_change = 1; |
| /* new calculation specific to this function for u2_sub_mb_ofst*/ |
| u2_sub_mb_ofst = (ps_dec->u2_mbx |
| + ((ps_dec->u2_mby >> 1) * ps_dec->u2_frm_wd_in_mbs)) << 4; |
| u2_sub_mb_ofst += ((ps_dec->u2_mby & 1) << 3); |
| |
| if(u1_wd_x == MB_SIZE) |
| { |
| pu1_col_zero_flag_start = ps_col_pic->pu1_col_zero_flag + u2_sub_mb_ofst; |
| u1_col_mb_pred_mode = (*pu1_col_zero_flag_start >> 6); |
| ps_dec->u1_currB_type = (!!u1_col_mb_pred_mode); |
| |
| if(u1_col_mb_pred_mode & 0x2) |
| { |
| if(u1_col_mb_pred_mode == PRED_8x16) |
| { |
| ps_direct->i1_num_partitions = 2; |
| ps_direct->i4_mv_indices[0] = u2_sub_mb_ofst; |
| ps_direct->i1_submb_num[0] = 0; |
| ps_direct->i1_partitionsize[0] = PRED_8x16; |
| ps_direct->i4_mv_indices[1] = u2_sub_mb_ofst + 2; |
| ps_direct->i1_submb_num[1] = 2; |
| ps_direct->i1_partitionsize[1] = PRED_8x16; |
| } |
| else |
| { |
| UWORD8 i1_num_partitions = 0, partition_size; |
| UWORD32 mv_index; |
| UWORD8 u1_num_sub_blks, i, u1_col_sub_mb_pred_mode, |
| u1_col_sub_mb_pred_mode_rt; |
| |
| u1_sub_mb_num = ps_dec->u1_sub_mb_num; |
| |
| pu1_col_zero_flag = pu1_col_zero_flag_start + u1_sub_mb_num; |
| u1_col_sub_mb_pred_mode = (*pu1_col_zero_flag & 0x10);/* 8x4 or 4x4 mode */ |
| |
| pu1_col_zero_flag_right_half = pu1_col_zero_flag_start + u1_sub_mb_num |
| + 2; |
| u1_col_sub_mb_pred_mode_rt = (*pu1_col_zero_flag_right_half |
| & 0x10);/* 8x4 or 4x4 mode */ |
| |
| i4_force_8X8 = (u1_col_sub_mb_pred_mode) |
| || (u1_col_sub_mb_pred_mode_rt); |
| if(i4_force_8X8) |
| { |
| u1_num_sub_blks = 2; |
| partition_size = PRED_8x8; |
| } |
| else |
| { |
| partition_size = PRED_8x16; |
| u1_num_sub_blks = 1; |
| } |
| |
| for(i = 0; i < 2; i++) |
| { |
| for(uc_blk = 0; uc_blk < u1_num_sub_blks; uc_blk++) |
| { |
| uc_sub_mb_num_col = u1_sub_mb_num | (u1_sub_mb_num >> 1); |
| uc_sub_mb_num_col &= 0x7; |
| mv_index = u2_sub_mb_ofst + uc_sub_mb_num_col; |
| |
| ps_direct->i4_mv_indices[i1_num_partitions] = mv_index; |
| ps_direct->i1_submb_num[i1_num_partitions] = |
| u1_sub_mb_num; |
| ps_direct->i1_partitionsize[i1_num_partitions] = |
| partition_size; |
| i1_num_partitions++; |
| u1_sub_mb_num += 8; |
| } |
| |
| u1_sub_mb_num = 2; /* move to second half of Cur MB */ |
| |
| } |
| ps_direct->i1_num_partitions = i1_num_partitions; |
| return; |
| } |
| } |
| else |
| { |
| ps_direct->i1_num_partitions = 1; |
| ps_direct->i4_mv_indices[0] = u2_sub_mb_ofst; |
| ps_direct->i1_submb_num[0] = 0; |
| ps_direct->i1_partitionsize[0] = PRED_16x16; |
| return; |
| } |
| } |
| else |
| { |
| u1_sub_mb_num = ps_dec->u1_sub_mb_num; |
| uc_sub_mb_num_col = u1_sub_mb_num | (u1_sub_mb_num >> 1); |
| uc_sub_mb_num_col &= 0x7; |
| |
| ps_direct->i4_mv_indices[0] = u2_sub_mb_ofst + uc_sub_mb_num_col; |
| ps_direct->i1_submb_num[0] = u1_sub_mb_num; |
| ps_direct->i1_partitionsize[0] = PRED_8x8; |
| ps_direct->i1_num_partitions = 1; |
| } |
| } |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_one_to_one \endif |
| * |
| * \brief |
| * Initializes forward and backward refernce lists for B slice decoding. |
| * |
| * |
| * \return |
| * 0 on Success and Error code otherwise |
| ************************************************************************** |
| */ |
| void ih264d_mbaff_to_fld(dec_struct_t *ps_dec, |
| struct pic_buffer_t *ps_col_pic, |
| directmv_t *ps_direct, |
| UWORD8 u1_wd_x, |
| WORD32 u2_sub_mb_ofst, |
| dec_mb_info_t * ps_cur_mb_info) |
| { |
| UWORD8* pu1_col_zero_flag, u1_iscol_mb_fld; |
| u2_sub_mb_ofst <<= 1; |
| pu1_col_zero_flag = ps_col_pic->pu1_col_zero_flag + u2_sub_mb_ofst; |
| u1_iscol_mb_fld = (*pu1_col_zero_flag & 0x2) >> 1; |
| if(u1_iscol_mb_fld) |
| { |
| u2_sub_mb_ofst += (ps_dec->ps_cur_slice->u1_bottom_field_flag << 4); |
| ih264d_one_to_one(ps_dec, ps_col_pic, ps_direct, u1_wd_x, |
| u2_sub_mb_ofst, ps_cur_mb_info); |
| } |
| else |
| ih264d_frm_to_fld(ps_dec, ps_col_pic, ps_direct, u1_wd_x, |
| u2_sub_mb_ofst, ps_cur_mb_info); |
| } |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_one_to_one \endif |
| * |
| * \brief |
| * Initializes forward and backward refernce lists for B slice decoding. |
| * |
| * |
| * \return |
| * 0 on Success and Error code otherwise |
| ************************************************************************** |
| */ |
| void ih264d_fld_to_mbaff(dec_struct_t *ps_dec, |
| struct pic_buffer_t *ps_col_pic, |
| directmv_t *ps_direct, |
| UWORD8 u1_wd_x, |
| WORD32 u2_sub_mb_ofst, |
| dec_mb_info_t * ps_cur_mb_info) |
| { |
| if((ps_col_pic->u1_picturetype & 0x7) == COMP_FLD_PAIR) |
| { |
| /* first calculate the colocated picture which varies with Mb */ |
| UWORD8 u1_is_cur_mb_fld; |
| u1_is_cur_mb_fld = ps_cur_mb_info->u1_mb_field_decodingflag; |
| u2_sub_mb_ofst = (u2_sub_mb_ofst & 0xffe0); /* mbaddrCol5 = curmbaddr/2;*/ |
| u2_sub_mb_ofst >>= 1; |
| |
| ps_col_pic = ps_dec->ps_ref_pic_buf_lx[1][0]; |
| if(u1_is_cur_mb_fld) |
| { |
| if(1 - ps_cur_mb_info->u1_topmb) |
| ps_col_pic = ps_dec->ps_ref_pic_buf_lx[1][MAX_REF_BUFS]; |
| |
| ih264d_one_to_one(ps_dec, ps_col_pic, ps_direct, u1_wd_x, |
| u2_sub_mb_ofst, ps_cur_mb_info); |
| } |
| else |
| { |
| |
| if(ABS(ps_col_pic->i4_top_field_order_cnt |
| - ps_dec->ps_cur_pic->i4_poc) >= |
| ABS(ps_dec->ps_cur_pic->i4_poc - ps_col_pic->i4_bottom_field_order_cnt)) |
| { |
| ps_col_pic = ps_dec->ps_ref_pic_buf_lx[1][MAX_REF_BUFS]; |
| } |
| |
| if(ps_cur_mb_info->u1_topmb == 0) |
| u2_sub_mb_ofst += 8; |
| ih264d_mbaff_cross_pmbair(ps_dec, ps_col_pic, ps_direct, u1_wd_x, |
| u2_sub_mb_ofst, ps_cur_mb_info); |
| } |
| ps_dec->ps_col_pic = ps_col_pic; |
| } |
| else |
| { |
| UWORD8* pu1_col_zero_flag = ps_col_pic->pu1_col_zero_flag |
| + u2_sub_mb_ofst; |
| UWORD8 temp, u1_is_cur_mb_fld, u1_iscol_mb_fld; |
| |
| u1_iscol_mb_fld = (*pu1_col_zero_flag & 0x2) >> 1; |
| u1_is_cur_mb_fld = ps_cur_mb_info->u1_mb_field_decodingflag; |
| temp = (u1_iscol_mb_fld ^ u1_is_cur_mb_fld); |
| |
| if(temp == 0) |
| ih264d_one_to_one(ps_dec, ps_col_pic, ps_direct, u1_wd_x, |
| u2_sub_mb_ofst, ps_cur_mb_info); |
| else |
| { |
| u2_sub_mb_ofst &= 0xffef; |
| if(u1_is_cur_mb_fld == 0) |
| { |
| if(ABS(ps_col_pic->i4_top_field_order_cnt |
| - ps_dec->ps_cur_pic->i4_poc) >= |
| ABS(ps_dec->ps_cur_pic->i4_poc - ps_col_pic->i4_bottom_field_order_cnt)) |
| { |
| u2_sub_mb_ofst += 0x10; |
| } |
| if(ps_cur_mb_info->u1_topmb == 0) |
| u2_sub_mb_ofst += 8; |
| } |
| ih264d_mbaff_cross_pmbair(ps_dec, ps_col_pic, ps_direct, u1_wd_x, |
| u2_sub_mb_ofst, ps_cur_mb_info); |
| } |
| } |
| } |
| |
