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Cemu/dependencies/ih264d/decoder/ih264d_process_bslice.c
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2022-08-22 22:21:23 +02:00

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/******************************************************************************
*
* 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;
WORD32 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;
WORD64 diff;
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;
}
diff = (WORD64)pic1_poc - pic0_poc;
i16_td = CLIP_S8(diff);
if((ps_pic_buff0->u1_is_short == 0) || (i16_td == 0))
{
i2_mv_x1 = 0;
i2_mv_y1 = 0;
}
else
{
WORD16 i2_tb, i2_tx, i2_dist_scale_factor, i2_temp;
diff = (WORD64)cur_poc - pic0_poc;
i2_tb = CLIP_S8(diff);
i2_tx = (16384 + ABS(SIGN_POW2_DIV(i16_td, 1))) / i16_td;
i2_dist_scale_factor = CLIP_S11(
(((i2_tb * i2_tx) + 32) >> 6));
i2_temp = (i2_mv_x0 * i2_dist_scale_factor + 128) >> 8;
i2_mv_x1 = i2_temp - i2_mv_x0;
i2_mv_x0 = i2_temp;
i2_temp = (i2_mv_y0 * i2_dist_scale_factor + 128) >> 8;
i2_mv_y1 = i2_temp - i2_mv_y0;
i2_mv_y0 = i2_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;
}
}
}
}
static int poc_compare(const void *pv_pic1, const void *pv_pic2)
{
struct pic_buffer_t *ps_pic1 = *(struct pic_buffer_t **) pv_pic1;
struct pic_buffer_t *ps_pic2 = *(struct pic_buffer_t **) pv_pic2;
if (ps_pic1->i4_poc < ps_pic2->i4_poc)
{
return -1;
}
else if (ps_pic1->i4_poc > ps_pic2->i4_poc)
{
return 1;
}
else
{
return 0;
}
}
/*!
**************************************************************************
* \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, j;
UWORD8 u1_max_lt_index, u1_min_lt_index;
UWORD32 u4_lt_index;
WORD32 i_cur_idx;
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;
struct pic_buffer_t *aps_st_pic_bufs[2 * MAX_REF_BUFS] = {NULL};
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;
}
/* Sort ST ref pocs in ascending order */
ps_next_dpb = ps_dpb_mgr->ps_dpb_st_head;
for (j = 0; j < ps_dpb_mgr->u1_num_st_ref_bufs; j++)
{
aps_st_pic_bufs[j] = ps_next_dpb->ps_pic_buf;
ps_next_dpb = ps_next_dpb->ps_prev_short;
}
qsort(aps_st_pic_bufs, ps_dpb_mgr->u1_num_st_ref_bufs,
sizeof(aps_st_pic_bufs[0]), poc_compare);
/* 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;
i_temp_poc = i_cur_poc;
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;
}
else
{
ps_ref_pic_buf_lx = ps_dpb_mgr->ps_init_dpb[0][0];
/* Avoid integer overflow while decrementing by one */
if (i_temp_poc > INT32_MIN)
i_temp_poc--;
}
i_cur_idx = -1;
for(j = 0; j < ps_dpb_mgr->u1_num_st_ref_bufs; j++)
{
if (NULL == aps_st_pic_bufs[j])
{
break;
}
if (aps_st_pic_bufs[j]->i4_poc <= i_temp_poc)
{
i_cur_idx = j;
}
}
/* 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(j = i_cur_idx; j >= 0; j--)
{
if(aps_st_pic_bufs[j])
{
/* Copy info in pic buffer */
ih264d_insert_pic_in_ref_pic_listx(ps_ref_pic_buf_lx,
aps_st_pic_bufs[j]);
ps_ref_pic_buf_lx++;
u1_L0++;
}
}
/* 1.2. Arrange POC's more than CurrPOC in the ascending POC order starting
from (CurrPOC + 1)*/
for(j = i_cur_idx + 1; j < ps_dpb_mgr->u1_num_st_ref_bufs; j++)
{
if(aps_st_pic_bufs[j])
{
ih264d_insert_pic_in_ref_pic_listx(ps_ref_pic_buf_lx,
aps_st_pic_bufs[j]);
ps_ref_pic_buf_lx++;
u1_L0++;
}
}
/* 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 ref_pic;
ref_pic = *(ps_dpb_mgr->ps_init_dpb[0][0] + MAX_REF_BUFS);
if(NULL == ref_pic.pu1_buf1)
{
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 = 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 ref_pic;
ref_pic = *(ps_dpb_mgr->ps_init_dpb[0][0]);
if(NULL == ref_pic.pu1_buf1)
{
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 = 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(j = i_cur_idx + 1; j < ps_dpb_mgr->u1_num_st_ref_bufs; j++)
{
if(aps_st_pic_bufs[j])
{
/* Start from ST head */
ih264d_insert_pic_in_ref_pic_listx(ps_ref_pic_buf_lx,
aps_st_pic_bufs[j]);
ps_ref_pic_buf_lx++;
u1_L1++;
}
}
/* 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(j = i_cur_idx; j >= 0; j--)
{
if(aps_st_pic_bufs[j])
{
ih264d_insert_pic_in_ref_pic_listx(ps_ref_pic_buf_lx,
aps_st_pic_bufs[j]);
ps_ref_pic_buf_lx++;
u1_L1++;
}
}
/* 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 ref_pic;
ref_pic = *(ps_dpb_mgr->ps_init_dpb[0][0] + MAX_REF_BUFS);
if(NULL == ref_pic.pu1_buf1)
{
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 = 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 ref_pic;
ref_pic = *(ps_dpb_mgr->ps_init_dpb[0][0]);
if(NULL == ref_pic.pu1_buf1)
{
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 = 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
- (WORD64)ps_dec->ps_cur_pic->i4_poc) >=
ABS((WORD64)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
- (WORD64)ps_dec->ps_cur_pic->i4_poc) >=
ABS((WORD64)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);
}
}
}
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