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Cemu/dependencies/ih264d/decoder/ih264d_process_pslice.c

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2022-08-22 22:21:23 +02:00
/******************************************************************************
*
* 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_pslice.c
*
* \brief
* Contains routines that decode a I 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_bitstrm.h"
#include "ih264d_defs.h"
#include "ih264d_debug.h"
#include "ih264d_structs.h"
#include "ih264d_defs.h"
#include "ih264d_parse_cavlc.h"
#include "ih264d_mb_utils.h"
#include "ih264d_deblocking.h"
#include "ih264d_dpb_manager.h"
#include "ih264d_mvpred.h"
#include "ih264d_inter_pred.h"
#include "ih264d_process_pslice.h"
#include "ih264d_error_handler.h"
#include "ih264d_cabac.h"
#include "ih264d_debug.h"
#include "ih264d_tables.h"
#include "ih264d_parse_slice.h"
#include "ih264d_utils.h"
#include "ih264d_parse_islice.h"
#include "ih264d_process_bslice.h"
#include "ih264d_process_intra_mb.h"
void ih264d_init_cabac_contexts(UWORD8 u1_slice_type, dec_struct_t * ps_dec);
void ih264d_insert_pic_in_ref_pic_listx(struct pic_buffer_t *ps_ref_pic_buf_lx,
struct pic_buffer_t *ps_pic)
{
*ps_ref_pic_buf_lx = *ps_pic;
}
WORD32 ih264d_mv_pred_ref_tfr_nby2_pmb(dec_struct_t * ps_dec,
UWORD8 u1_mb_idx,
UWORD8 u1_num_mbs)
{
parse_pmbarams_t * ps_mb_part_info;
parse_part_params_t * ps_part;
mv_pred_t *ps_mv_nmb, *ps_mv_nmb_start, *ps_mv_ntop, *ps_mv_ntop_start;
UWORD32 i, j;
const UWORD32 u1_mbaff = ps_dec->ps_cur_slice->u1_mbaff_frame_flag;
dec_mb_info_t * ps_cur_mb_info;
WORD32 i2_mv_x, i2_mv_y;
WORD32 ret;
ps_dec->i4_submb_ofst -= (u1_num_mbs - u1_mb_idx) << 4;
ps_mb_part_info = ps_dec->ps_parse_mb_data; // + u1_mb_idx;
ps_part = ps_dec->ps_parse_part_params; // + u1_mb_idx;
/* N/2 Mb MvPred and Transfer Setup Loop */
for(i = u1_mb_idx; i < u1_num_mbs; i++, ps_mb_part_info++)
{
UWORD32 u1_colz;
UWORD32 u1_field;
mv_pred_t s_mvPred;
mv_pred_t *ps_mv_pred = &s_mvPred;
*ps_mv_pred = ps_dec->s_default_mv_pred;
ps_dec->i4_submb_ofst += SUB_BLK_SIZE;
/* Restore the slice scratch MbX and MbY context */
ps_cur_mb_info = ps_dec->ps_nmb_info + i;
u1_field = ps_cur_mb_info->u1_mb_field_decodingflag;
ps_mv_nmb_start = ps_dec->ps_mv_cur + (i << 4);
ps_dec->u2_mbx = ps_cur_mb_info->u2_mbx;
ps_dec->u2_mby = ps_cur_mb_info->u2_mby;
ps_dec->u2_mv_2mb[i & 0x1] = 0;
/* Look for MV Prediction and Reference Transfer in Non-I Mbs */
if(!ps_mb_part_info->u1_isI_mb)
{
UWORD32 u1_blk_no;
WORD32 i1_ref_idx, i1_ref_idx1;
UWORD32 u1_sub_mb_x, u1_sub_mb_y, u1_sub_mb_num;
UWORD32 u1_num_part, u1_num_ref, u1_wd, u1_ht;
UWORD32 *pu4_wt_offst, **ppu4_wt_ofst;
UWORD32 u1_scale_ref, u4_bot_mb;
WORD8 *pi1_ref_idx = ps_mb_part_info->i1_ref_idx[0];
pic_buffer_t *ps_ref_frame, **pps_ref_frame;
deblk_mb_t * ps_cur_deblk_mb = ps_dec->ps_deblk_mbn + i;
/* MB Level initialisations */
ps_dec->u4_num_pmbair = i >> u1_mbaff;
ps_dec->u1_mb_idx_mv = i;
ppu4_wt_ofst = ps_mb_part_info->pu4_wt_offst;
pps_ref_frame = ps_dec->ps_ref_pic_buf_lx[0];
/* CHANGED CODE */
ps_mv_ntop_start = ps_mv_nmb_start
- (ps_dec->u2_frm_wd_in_mbs << (4 + u1_mbaff)) + 12;
u1_num_part = ps_mb_part_info->u1_num_part;
ps_cur_deblk_mb->u1_mb_type |= (u1_num_part > 1) << 1;
ps_cur_mb_info->u4_pred_info_pkd_idx = ps_dec->u4_pred_info_pkd_idx;
ps_cur_mb_info->u1_num_pred_parts = 0;
/****************************************************/
/* weighted u4_ofst pointer calculations, this loop */
/* runs maximum 4 times, even in direct cases */
/****************************************************/
u1_scale_ref = u1_mbaff & u1_field;
u4_bot_mb = 1 - ps_cur_mb_info->u1_topmb;
if(ps_dec->ps_cur_pps->u1_wted_pred_flag)
{
u1_num_ref = MIN(u1_num_part, 4);
for(u1_blk_no = 0; u1_blk_no < u1_num_ref; u1_blk_no++)
{
i1_ref_idx = pi1_ref_idx[u1_blk_no];
if(u1_scale_ref)
i1_ref_idx >>= 1;
pu4_wt_offst = (UWORD32*)&ps_dec->pu4_wt_ofsts[2
* X3(i1_ref_idx)];
ppu4_wt_ofst[u1_blk_no] = pu4_wt_offst;
}
}
else
{
ppu4_wt_ofst[0] = NULL;
ppu4_wt_ofst[1] = NULL;
ppu4_wt_ofst[2] = NULL;
ppu4_wt_ofst[3] = NULL;
}
/**************************************************/
/* Loop on Partitions */
/**************************************************/
for(j = 0; j < u1_num_part; j++, ps_part++)
{
u1_sub_mb_num = ps_part->u1_sub_mb_num;
ps_dec->u1_sub_mb_num = u1_sub_mb_num;
if(PART_NOT_DIRECT != ps_part->u1_is_direct)
{
/* Mb Skip Mode */
/* Setting the default and other members of MvPred Structure */
s_mvPred.i2_mv[2] = -1;
s_mvPred.i2_mv[3] = -1;
s_mvPred.i1_ref_frame[0] = 0;
i1_ref_idx = (u1_scale_ref && u4_bot_mb) ? MAX_REF_BUFS : 0;
ps_ref_frame = pps_ref_frame[i1_ref_idx];
s_mvPred.u1_col_ref_pic_idx = ps_ref_frame->u1_mv_buf_id;
s_mvPred.u1_pic_type = ps_ref_frame->u1_pic_type;
pu4_wt_offst = (UWORD32*)&ps_dec->pu4_wt_ofsts[0];
ps_dec->pf_mvpred(ps_dec, ps_cur_mb_info, ps_mv_nmb_start,
ps_mv_ntop_start, &s_mvPred, 0, 4, 0, 1,
MB_SKIP);
{
pred_info_pkd_t *ps_pred_pkd;
ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx;
ih264d_fill_pred_info (s_mvPred.i2_mv,4,4,0,PRED_L0,ps_pred_pkd,ps_ref_frame->u1_pic_buf_id,
(i1_ref_idx >> u1_scale_ref),pu4_wt_offst,
ps_ref_frame->u1_pic_type);
ps_dec->u4_pred_info_pkd_idx++;
ps_cur_mb_info->u1_num_pred_parts++;
}
/* Storing colocated zero information */
u1_colz = ((ABS(s_mvPred.i2_mv[0]) <= 1)
&& (ABS(s_mvPred.i2_mv[1]) <= 1))
+ (u1_field << 1);
ih264d_rep_mv_colz(ps_dec, &s_mvPred, ps_mv_nmb_start, 0,
u1_colz, 4, 4);
}
else
{
u1_sub_mb_x = u1_sub_mb_num & 0x03;
u1_sub_mb_y = u1_sub_mb_num >> 2;
u1_blk_no =
(u1_num_part < 4) ?
j :
(((u1_sub_mb_y >> 1) << 1)
+ (u1_sub_mb_x
>> 1));
ps_mv_ntop = ps_mv_ntop_start + u1_sub_mb_x;
ps_mv_nmb = ps_mv_nmb_start + u1_sub_mb_num;
u1_wd = ps_part->u1_partwidth;
u1_ht = ps_part->u1_partheight;
/* Populate the colpic info and reference frames */
i1_ref_idx = pi1_ref_idx[u1_blk_no];
s_mvPred.i1_ref_frame[0] = i1_ref_idx;
/********************************************************/
/* Predict Mv */
/* Add Mv Residuals and store back */
/********************************************************/
ps_dec->pf_mvpred(ps_dec, ps_cur_mb_info, ps_mv_nmb, ps_mv_ntop,
&s_mvPred, u1_sub_mb_num, u1_wd, 0, 1,
ps_cur_mb_info->u1_mb_mc_mode);
i2_mv_x = ps_mv_nmb->i2_mv[0];
i2_mv_y = ps_mv_nmb->i2_mv[1];
i2_mv_x += s_mvPred.i2_mv[0];
i2_mv_y += s_mvPred.i2_mv[1];
s_mvPred.i2_mv[0] = i2_mv_x;
s_mvPred.i2_mv[1] = i2_mv_y;
/********************************************************/
/* Transfer setup call */
/* convert RefIdx if it is MbAff */
/* Pass Weight Offset and refFrame */
/********************************************************/
i1_ref_idx1 = i1_ref_idx >> u1_scale_ref;
if(u1_scale_ref && ((i1_ref_idx & 0x01) != u4_bot_mb))
i1_ref_idx1 += MAX_REF_BUFS;
ps_ref_frame = pps_ref_frame[i1_ref_idx1];
pu4_wt_offst = ppu4_wt_ofst[u1_blk_no];
{
pred_info_pkd_t *ps_pred_pkd;
ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx;
ih264d_fill_pred_info (s_mvPred.i2_mv,u1_wd,u1_ht,u1_sub_mb_num,PRED_L0,ps_pred_pkd,
ps_ref_frame->u1_pic_buf_id,(i1_ref_idx >> u1_scale_ref),pu4_wt_offst,
ps_ref_frame->u1_pic_type);
ps_dec->u4_pred_info_pkd_idx++;
ps_cur_mb_info->u1_num_pred_parts++;
}
/* Fill colocated info in MvPred structure */
s_mvPred.u1_col_ref_pic_idx = ps_ref_frame->u1_mv_buf_id;
s_mvPred.u1_pic_type = ps_ref_frame->u1_pic_type;
/* Calculating colocated zero information */
u1_colz =
(u1_field << 1)
| ((i1_ref_idx == 0)
&& (ABS(i2_mv_x)
<= 1)
&& (ABS(i2_mv_y)
<= 1));
u1_colz |= ps_mb_part_info->u1_col_info[u1_blk_no];
/* Replicate the motion vectors and colzero u4_flag */
/* for all sub-partitions */
ih264d_rep_mv_colz(ps_dec, &s_mvPred, ps_mv_nmb,
u1_sub_mb_num, u1_colz, u1_ht,
u1_wd);
}
}
}
else
{
/* Storing colocated zero information */
ih264d_rep_mv_colz(ps_dec, &s_mvPred, ps_mv_nmb_start, 0,
(UWORD8)(u1_field << 1), 4, 4);
}
/*if num _cores is set to 3,compute bs will be done in another thread*/
if(ps_dec->u4_num_cores < 3)
{
if(ps_dec->u4_app_disable_deblk_frm == 0)
ps_dec->pf_compute_bs(ps_dec, ps_cur_mb_info,
(UWORD16)(i >> u1_mbaff));
}
}
return OK;
}
WORD32 ih264d_decode_recon_tfr_nmb(dec_struct_t * ps_dec,
UWORD8 u1_mb_idx,
UWORD8 u1_num_mbs,
UWORD8 u1_num_mbs_next,
UWORD8 u1_tfr_n_mb,
UWORD8 u1_end_of_row)
{
WORD32 i,j;
UWORD32 u1_end_of_row_next;
dec_mb_info_t * ps_cur_mb_info;
UWORD32 u4_update_mbaff = 0;
WORD32 ret;
const UWORD32 u1_mbaff = ps_dec->ps_cur_slice->u1_mbaff_frame_flag;
const UWORD32 u1_slice_type = ps_dec->ps_cur_slice->u1_slice_type;
const WORD32 u1_skip_th = (
(u1_slice_type != I_SLICE) ?
(ps_dec->u1_B ? B_8x8 : PRED_8x8R0) : -1);
const UWORD32 u1_ipcm_th = (
(u1_slice_type != I_SLICE) ? (ps_dec->u1_B ? 23 : 5) : 0);
/* N Mb MC Loop */
for(i = u1_mb_idx; i < u1_num_mbs; i++)
{
ps_cur_mb_info = ps_dec->ps_nmb_info + i;
ps_dec->u4_dma_buf_idx = 0;
ps_dec->u4_pred_info_idx = 0;
if(ps_cur_mb_info->u1_mb_type <= u1_skip_th)
{
{
WORD32 pred_cnt = 0;
pred_info_pkd_t *ps_pred_pkd;
UWORD32 u4_pred_info_pkd_idx;
WORD8 i1_pred;
u4_pred_info_pkd_idx = ps_cur_mb_info->u4_pred_info_pkd_idx;
while(pred_cnt < ps_cur_mb_info->u1_num_pred_parts)
{
ps_pred_pkd = ps_dec->ps_pred_pkd + u4_pred_info_pkd_idx;
ps_dec->p_form_mb_part_info(ps_pred_pkd,ps_dec,
ps_cur_mb_info->u2_mbx,ps_cur_mb_info->u2_mby,(i >> u1_mbaff),
ps_cur_mb_info);
u4_pred_info_pkd_idx++;
pred_cnt++;
}
}
ps_dec->p_motion_compensate(ps_dec, ps_cur_mb_info);
}
else if(ps_cur_mb_info->u1_mb_type == MB_SKIP)
{
{
WORD32 pred_cnt = 0;
pred_info_pkd_t *ps_pred_pkd;
UWORD32 u4_pred_info_pkd_idx;
WORD8 i1_pred;
u4_pred_info_pkd_idx = ps_cur_mb_info->u4_pred_info_pkd_idx;
while(pred_cnt < ps_cur_mb_info->u1_num_pred_parts)
{
ps_pred_pkd = ps_dec->ps_pred_pkd + u4_pred_info_pkd_idx;
ps_dec->p_form_mb_part_info(ps_pred_pkd,ps_dec,
ps_cur_mb_info->u2_mbx,ps_cur_mb_info->u2_mby,(i >> u1_mbaff),
ps_cur_mb_info);
u4_pred_info_pkd_idx++;
pred_cnt++;
}
}
/* Decode MB skip */
ps_dec->p_motion_compensate(ps_dec, ps_cur_mb_info);
}
}
/* N Mb IQ IT RECON Loop */
for(j = u1_mb_idx; j < i; j++)
{
ps_cur_mb_info = ps_dec->ps_nmb_info + j;
if(ps_cur_mb_info->u1_mb_type <= u1_skip_th)
{
ih264d_process_inter_mb(ps_dec, ps_cur_mb_info, j);
}
else if(ps_cur_mb_info->u1_mb_type != MB_SKIP)
{
if((u1_ipcm_th + 25) != ps_cur_mb_info->u1_mb_type)
{
ps_cur_mb_info->u1_mb_type -= (u1_skip_th + 1);
ih264d_process_intra_mb(ps_dec, ps_cur_mb_info, j);
}
}
if(ps_dec->u4_use_intrapred_line_copy)
{
ih264d_copy_intra_pred_line(ps_dec, ps_cur_mb_info, j);
}
}
/*N MB deblocking*/
if(ps_dec->u4_nmb_deblk == 1)
{
UWORD32 u4_cur_mb, u4_right_mb;
UWORD32 u4_mb_x, u4_mb_y;
UWORD32 u4_wd_y, u4_wd_uv;
tfr_ctxt_t *ps_tfr_cxt = &(ps_dec->s_tran_addrecon);
UWORD8 u1_field_pic_flag = ps_dec->ps_cur_slice->u1_field_pic_flag;
const WORD32 i4_cb_qp_idx_ofst =
ps_dec->ps_cur_pps->i1_chroma_qp_index_offset;
const WORD32 i4_cr_qp_idx_ofst =
ps_dec->ps_cur_pps->i1_second_chroma_qp_index_offset;
u4_wd_y = ps_dec->u2_frm_wd_y << u1_field_pic_flag;
u4_wd_uv = ps_dec->u2_frm_wd_uv << u1_field_pic_flag;
ps_cur_mb_info = ps_dec->ps_nmb_info + u1_mb_idx;
ps_dec->u4_deblk_mb_x = ps_cur_mb_info->u2_mbx;
ps_dec->u4_deblk_mb_y = ps_cur_mb_info->u2_mby;
for(j = u1_mb_idx; j < i; j++)
{
ih264d_deblock_mb_nonmbaff(ps_dec, ps_tfr_cxt,
i4_cb_qp_idx_ofst, i4_cr_qp_idx_ofst,
u4_wd_y, u4_wd_uv);
}
}
if(u1_tfr_n_mb)
{
/****************************************************************/
/* Check for End Of Row in Next iteration */
/****************************************************************/
u1_end_of_row_next =
u1_num_mbs_next
&& (u1_num_mbs_next
<= (ps_dec->u1_recon_mb_grp
>> u1_mbaff));
/****************************************************************/
/* Transfer the Following things */
/* N-Mb DeblkParams Data ( To Ext DeblkParams Buffer ) */
/* N-Mb Recon Data ( To Ext Frame Buffer ) */
/* N-Mb Intrapredline Data ( Updated Internally) */
/* N-Mb MV Data ( To Ext MV Buffer ) */
/* N-Mb MVTop/TopRight Data ( To Int MV Top Scratch Buffers) */
/****************************************************************/
ih264d_transfer_mb_group_data(ps_dec, u1_num_mbs, u1_end_of_row,
u1_end_of_row_next);
ps_dec->u4_num_mbs_prev_nmb = u1_num_mbs;
ps_dec->u4_pred_info_idx = 0;
ps_dec->u4_dma_buf_idx = 0;
}
return OK;
}
/*!
**************************************************************************
* \if Function name : ih264d_process_inter_mb \endif
*
* \brief
* This function decodes an Inter MB.
*
*
* \return
* 0 on Success and Error code otherwise
**************************************************************************
*/
WORD32 ih264d_process_inter_mb(dec_struct_t * ps_dec,
dec_mb_info_t * ps_cur_mb_info,
UWORD8 u1_mb_num)
{
/* CHANGED CODE */
UWORD8 *pu1_rec_y, *pu1_rec_u, *pu1_rec_v;
/*CHANGED CODE */
UWORD32 ui_rec_width, u4_recwidth_cr;
WORD16 *pi2_y_coeff;
UWORD32 u1_mb_field_decoding_flag;
const UWORD8 u1_mbaff = ps_dec->ps_cur_slice->u1_mbaff_frame_flag;
UWORD32 uc_botMb;
UWORD32 u4_num_pmbair;
/* CHANGED CODE */
tfr_ctxt_t *ps_frame_buf = ps_dec->ps_frame_buf_ip_recon;
UWORD32 u4_luma_dc_only_csbp = 0;
UWORD32 u4_luma_dc_only_cbp = 0;
/* CHANGED CODE */
uc_botMb = 1 - ps_cur_mb_info->u1_topmb;
u4_num_pmbair = (u1_mb_num >> u1_mbaff);
u1_mb_field_decoding_flag = ps_cur_mb_info->u1_mb_field_decodingflag;
/* CHANGED CODE */
pu1_rec_y = ps_frame_buf->pu1_dest_y + (u4_num_pmbair << 4);
pu1_rec_u =
ps_frame_buf->pu1_dest_u
+ (u4_num_pmbair << 3) * YUV420SP_FACTOR;
pu1_rec_v = ps_frame_buf->pu1_dest_v + (u4_num_pmbair << 3);
ui_rec_width = ps_dec->u2_frm_wd_y << u1_mb_field_decoding_flag;
u4_recwidth_cr = ps_dec->u2_frm_wd_uv << u1_mb_field_decoding_flag;
/* CHANGED CODE */
if(u1_mbaff)
{
if(uc_botMb)
{
pu1_rec_y += (u1_mb_field_decoding_flag ?
(ui_rec_width >> 1) : (ui_rec_width << 4));
pu1_rec_u += (u1_mb_field_decoding_flag ?
(u4_recwidth_cr >> 1) : (u4_recwidth_cr << 3));
pu1_rec_v += (u1_mb_field_decoding_flag ?
(u4_recwidth_cr >> 1) : (u4_recwidth_cr << 3));
}
}
if(!ps_cur_mb_info->u1_tran_form8x8)
{
u4_luma_dc_only_csbp = ih264d_unpack_luma_coeff4x4_mb(ps_dec,
ps_cur_mb_info,
0);
}
else
{
if(!ps_dec->ps_cur_pps->u1_entropy_coding_mode)
{
u4_luma_dc_only_cbp = ih264d_unpack_luma_coeff4x4_mb(ps_dec,
ps_cur_mb_info,
0);
}
else
{
u4_luma_dc_only_cbp = ih264d_unpack_luma_coeff8x8_mb(ps_dec,
ps_cur_mb_info);
}
}
pi2_y_coeff = ps_dec->pi2_coeff_data;
/* Inverse Transform and Reconstruction */
if(ps_cur_mb_info->u1_cbp & 0x0f)
{
/* CHANGED CODE */
if(!ps_cur_mb_info->u1_tran_form8x8)
{
UWORD32 i;
WORD16 ai2_tmp[16];
for(i = 0; i < 16; i++)
{
if(CHECKBIT(ps_cur_mb_info->u2_luma_csbp, i))
{
WORD16 *pi2_level = pi2_y_coeff + (i << 4);
UWORD8 *pu1_pred_sblk = pu1_rec_y + ((i & 0x3) * BLK_SIZE)
+ (i >> 2) * (ui_rec_width << 2);
PROFILE_DISABLE_IQ_IT_RECON()
{
if(CHECKBIT(u4_luma_dc_only_csbp, i))
{
ps_dec->pf_iquant_itrans_recon_luma_4x4_dc(
pi2_level,
pu1_pred_sblk,
pu1_pred_sblk,
ui_rec_width,
ui_rec_width,
gau2_ih264_iquant_scale_4x4[ps_cur_mb_info->u1_qp_rem6],
(UWORD16 *)ps_dec->s_high_profile.i2_scalinglist4x4[3],
ps_cur_mb_info->u1_qp_div6, ai2_tmp, 0,
NULL);
}
else
{
ps_dec->pf_iquant_itrans_recon_luma_4x4(
pi2_level,
pu1_pred_sblk,
pu1_pred_sblk,
ui_rec_width,
ui_rec_width,
gau2_ih264_iquant_scale_4x4[ps_cur_mb_info->u1_qp_rem6],
(UWORD16 *)ps_dec->s_high_profile.i2_scalinglist4x4[3],
ps_cur_mb_info->u1_qp_div6, ai2_tmp, 0,
NULL);
}
}
}
}
}
else
{
WORD16 *pi2_scale_matrix_ptr;
WORD32 i;
pi2_scale_matrix_ptr =
ps_dec->s_high_profile.i2_scalinglist8x8[1];
for(i = 0; i < 4; i++)
{
WORD16 ai2_tmp[64];
WORD16 *pi16_levelBlock = pi2_y_coeff + (i << 6); /* move to the next 8x8 adding 64 */
UWORD8 *pu1_pred_sblk = pu1_rec_y + ((i & 0x1) * BLK8x8SIZE)
+ (i >> 1) * (ui_rec_width << 3);
if(CHECKBIT(ps_cur_mb_info->u1_cbp, i))
{
PROFILE_DISABLE_IQ_IT_RECON()
{
if(CHECKBIT(u4_luma_dc_only_cbp, i))
{
ps_dec->pf_iquant_itrans_recon_luma_8x8_dc(
pi16_levelBlock,
pu1_pred_sblk,
pu1_pred_sblk,
ui_rec_width,
ui_rec_width,
gau1_ih264d_dequant8x8_cavlc[ps_cur_mb_info->u1_qp_rem6],
(UWORD16 *)pi2_scale_matrix_ptr,
ps_cur_mb_info->u1_qp_div6, ai2_tmp, 0,
NULL);
}
else
{
ps_dec->pf_iquant_itrans_recon_luma_8x8(
pi16_levelBlock,
pu1_pred_sblk,
pu1_pred_sblk,
ui_rec_width,
ui_rec_width,
gau1_ih264d_dequant8x8_cavlc[ps_cur_mb_info->u1_qp_rem6],
(UWORD16 *)pi2_scale_matrix_ptr,
ps_cur_mb_info->u1_qp_div6, ai2_tmp, 0,
NULL);
}
}
}
}
}
}
/* Decode Chroma Block */
ih264d_unpack_chroma_coeff4x4_mb(ps_dec,
ps_cur_mb_info);
/*--------------------------------------------------------------------*/
/* Chroma Blocks decoding */
/*--------------------------------------------------------------------*/
{
UWORD8 u1_chroma_cbp = (UWORD8)(ps_cur_mb_info->u1_cbp >> 4);
if(u1_chroma_cbp != CBPC_ALLZERO)
{
UWORD32 u4_scale_u = ps_cur_mb_info->u1_qpc_div6;
UWORD32 u4_scale_v = ps_cur_mb_info->u1_qpcr_div6;
UWORD16 u2_chroma_csbp = ps_cur_mb_info->u2_chroma_csbp;
pi2_y_coeff = ps_dec->pi2_coeff_data;
{
UWORD32 i;
WORD16 ai2_tmp[16];
for(i = 0; i < 4; i++)
{
WORD16 *pi2_level = pi2_y_coeff + (i << 4);
UWORD8 *pu1_pred_sblk = pu1_rec_u
+ ((i & 0x1) * BLK_SIZE * YUV420SP_FACTOR)
+ (i >> 1) * (u4_recwidth_cr << 2);
PROFILE_DISABLE_IQ_IT_RECON()
{
if(CHECKBIT(u2_chroma_csbp, i))
{
ps_dec->pf_iquant_itrans_recon_chroma_4x4(
pi2_level,
pu1_pred_sblk,
pu1_pred_sblk,
u4_recwidth_cr,
u4_recwidth_cr,
gau2_ih264_iquant_scale_4x4[ps_cur_mb_info->u1_qpc_rem6],
(UWORD16 *)ps_dec->s_high_profile.i2_scalinglist4x4[4],
u4_scale_u, ai2_tmp, pi2_level);
}
else if(pi2_level[0] != 0)
{
ps_dec->pf_iquant_itrans_recon_chroma_4x4_dc(
pi2_level,
pu1_pred_sblk,
pu1_pred_sblk,
u4_recwidth_cr,
u4_recwidth_cr,
gau2_ih264_iquant_scale_4x4[ps_cur_mb_info->u1_qpc_rem6],
(UWORD16 *)ps_dec->s_high_profile.i2_scalinglist4x4[4],
u4_scale_u, ai2_tmp, pi2_level);
}
}
}
}
pi2_y_coeff += MB_CHROM_SIZE;
u2_chroma_csbp >>= 4;
{
UWORD32 i;
WORD16 ai2_tmp[16];
for(i = 0; i < 4; i++)
{
WORD16 *pi2_level = pi2_y_coeff + (i << 4);
UWORD8 *pu1_pred_sblk = pu1_rec_u + 1
+ ((i & 0x1) * BLK_SIZE * YUV420SP_FACTOR)
+ (i >> 1) * (u4_recwidth_cr << 2);
PROFILE_DISABLE_IQ_IT_RECON()
{
if(CHECKBIT(u2_chroma_csbp, i))
{
ps_dec->pf_iquant_itrans_recon_chroma_4x4(
pi2_level,
pu1_pred_sblk,
pu1_pred_sblk,
u4_recwidth_cr,
u4_recwidth_cr,
gau2_ih264_iquant_scale_4x4[ps_cur_mb_info->u1_qpcr_rem6],
(UWORD16 *)ps_dec->s_high_profile.i2_scalinglist4x4[5],
u4_scale_v, ai2_tmp, pi2_level);
}
else if(pi2_level[0] != 0)
{
ps_dec->pf_iquant_itrans_recon_chroma_4x4_dc(
pi2_level,
pu1_pred_sblk,
pu1_pred_sblk,
u4_recwidth_cr,
u4_recwidth_cr,
gau2_ih264_iquant_scale_4x4[ps_cur_mb_info->u1_qpcr_rem6],
(UWORD16 *)ps_dec->s_high_profile.i2_scalinglist4x4[5],
u4_scale_v, ai2_tmp, pi2_level);
}
}
}
}
}
}
return (0);
}
/*!
**************************************************************************
* \if Function name : ih264d_parse_pred_weight_table \endif
*
* \brief
* Implements pred_weight_table() of 7.3.3.2.
*
* \return
* None
*
**************************************************************************
*/
WORD32 ih264d_parse_pred_weight_table(dec_slice_params_t * ps_cur_slice,
dec_bit_stream_t * ps_bitstrm)
{
UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer;
UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst;
WORD8 i, cont, lx;
UWORD8 uc_weight_flag;
UWORD32 *pui32_weight_offset_lx;
WORD16 c_weight, c_offset;
UWORD32 ui32_y_def_weight_ofst, ui32_cr_def_weight_ofst;
UWORD32 ui32_temp;
UWORD8 uc_luma_log2_weight_denom;
UWORD8 uc_chroma_log2_weight_denom;
/* Variables for error resilience checks */
UWORD32 u4_temp;
WORD32 i_temp;
u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
if(u4_temp > MAX_LOG2_WEIGHT_DENOM)
{
return ERROR_PRED_WEIGHT_TABLE_T;
}
uc_luma_log2_weight_denom = u4_temp;
COPYTHECONTEXT("SH: luma_log2_weight_denom",uc_luma_log2_weight_denom);
ui32_y_def_weight_ofst = (1 << uc_luma_log2_weight_denom);
u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
if(u4_temp > MAX_LOG2_WEIGHT_DENOM)
{
return ERROR_PRED_WEIGHT_TABLE_T;
}
uc_chroma_log2_weight_denom = u4_temp;
COPYTHECONTEXT("SH: chroma_log2_weight_denom",uc_chroma_log2_weight_denom);
ui32_cr_def_weight_ofst = (1 << uc_chroma_log2_weight_denom);
ps_cur_slice->u2_log2Y_crwd = uc_luma_log2_weight_denom
| (uc_chroma_log2_weight_denom << 8);
cont = (ps_cur_slice->u1_slice_type == B_SLICE);
lx = 0;
do
{
for(i = 0; i < ps_cur_slice->u1_num_ref_idx_lx_active[lx]; i++)
{
pui32_weight_offset_lx = ps_cur_slice->u4_wt_ofst_lx[lx][i];
uc_weight_flag = ih264d_get_bit_h264(ps_bitstrm);
pu4_bitstrm_buf = ps_bitstrm->pu4_buffer;
COPYTHECONTEXT("SH: luma_weight_l0_flag",uc_weight_flag);
if(uc_weight_flag)
{
i_temp = ih264d_sev(pu4_bitstrm_ofst,
pu4_bitstrm_buf);
if((i_temp < PRED_WEIGHT_MIN) || (i_temp > PRED_WEIGHT_MAX))
return ERROR_PRED_WEIGHT_TABLE_T;
c_weight = i_temp;
COPYTHECONTEXT("SH: luma_weight_l0",c_weight);
i_temp = ih264d_sev(pu4_bitstrm_ofst,
pu4_bitstrm_buf);
if((i_temp < PRED_WEIGHT_MIN) || (i_temp > PRED_WEIGHT_MAX))
return ERROR_PRED_WEIGHT_TABLE_T;
c_offset = i_temp;
COPYTHECONTEXT("SH: luma_offset_l0",c_offset);
ui32_temp = (c_offset << 16) | (c_weight & 0xFFFF);
pui32_weight_offset_lx[0] = ui32_temp;
}
else
{
pui32_weight_offset_lx[0] = ui32_y_def_weight_ofst;
}
{
WORD8 c_weightCb, c_weightCr, c_offsetCb, c_offsetCr;
uc_weight_flag = ih264d_get_bit_h264(ps_bitstrm);
pu4_bitstrm_buf = ps_bitstrm->pu4_buffer;
COPYTHECONTEXT("SH: chroma_weight_l0_flag",uc_weight_flag);
if(uc_weight_flag)
{
i_temp = ih264d_sev(pu4_bitstrm_ofst,
pu4_bitstrm_buf);
if((i_temp < PRED_WEIGHT_MIN) || (i_temp > PRED_WEIGHT_MAX))
return ERROR_PRED_WEIGHT_TABLE_T;
c_weightCb = i_temp;
COPYTHECONTEXT("SH: chroma_weight_l0",c_weightCb);
i_temp = ih264d_sev(pu4_bitstrm_ofst,
pu4_bitstrm_buf);
if((i_temp < PRED_WEIGHT_MIN) || (i_temp > PRED_WEIGHT_MAX))
return ERROR_PRED_WEIGHT_TABLE_T;
c_offsetCb = i_temp;
COPYTHECONTEXT("SH: chroma_weight_l0",c_offsetCb);
ui32_temp = (c_offsetCb << 16) | (c_weightCb & 0xFFFF);
pui32_weight_offset_lx[1] = ui32_temp;
i_temp = ih264d_sev(pu4_bitstrm_ofst,
pu4_bitstrm_buf);
if((i_temp < PRED_WEIGHT_MIN) || (i_temp > PRED_WEIGHT_MAX))
return ERROR_PRED_WEIGHT_TABLE_T;
c_weightCr = i_temp;
COPYTHECONTEXT("SH: chroma_weight_l0",c_weightCr);
i_temp = ih264d_sev(pu4_bitstrm_ofst,
pu4_bitstrm_buf);
if((i_temp < PRED_WEIGHT_MIN) || (i_temp > PRED_WEIGHT_MAX))
return ERROR_PRED_WEIGHT_TABLE_T;
c_offsetCr = i_temp;
COPYTHECONTEXT("SH: chroma_weight_l0",c_offsetCr);
ui32_temp = (c_offsetCr << 16) | (c_weightCr & 0xFFFF);
pui32_weight_offset_lx[2] = ui32_temp;
}
else
{
pui32_weight_offset_lx[1] = ui32_cr_def_weight_ofst;
pui32_weight_offset_lx[2] = ui32_cr_def_weight_ofst;
}
}
}
lx++;
}
while(cont--);
return OK;
}
static int pic_num_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_pic_num < ps_pic2->i4_pic_num)
{
return -1;
}
else if (ps_pic1->i4_pic_num > ps_pic2->i4_pic_num)
{
return 1;
}
else
{
return 0;
}
}
/*****************************************************************************/
/* */
/* Function Name : ih264d_init_ref_idx_lx_p */
/* */
/* Description : This function initializes the reference picture L0 list */
/* for P slices as per section 8.2.4.2.1 and 8.2.4.2.2. */
/* */
/* Inputs : pointer to ps_dec struture */
/* Globals : NO */
/* Processing : arranges all the short term pictures according to */
/* pic_num in descending order starting from curr pic_num. */
/* and inserts it in L0 list followed by all Long term */
/* pictures in ascending order. */
/* */
/* Returns : void */
/* */
/* Issues : <List any issues or problems with this function> */
/* */
/* Revision History: */
/* */
/* DD MM YYYY Author(s) Changes (Describe the changes made) */
/* 13 07 2002 Jay Draft */
/* */
/*****************************************************************************/
void ih264d_init_ref_idx_lx_p(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;
WORD8 i, j;
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;
WORD32 i4_cur_pic_num, i4_min_st_pic_num;
WORD32 i4_temp_pic_num, i4_ref_pic_num;
UWORD8 u1_num_short_term_bufs;
UWORD8 u1_max_ref_idx_l0;
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;
ps_dpb_mgr = ps_dec->ps_dpb_mgr;
/* Get the current frame number */
i4_cur_pic_num = ps_dec->ps_cur_pic->i4_pic_num;
/* Get Min pic_num,MinLt */
i4_min_st_pic_num = i4_cur_pic_num;
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++)
{
i4_ref_pic_num = ps_next_dpb->ps_pic_buf->i4_pic_num;
if(i4_ref_pic_num < i4_cur_pic_num)
{
/* RefPic Buf pic_num is before Current pic_num in decode order */
i4_min_st_pic_num = MIN(i4_min_st_pic_num, i4_ref_pic_num);
}
/* 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]), pic_num_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;
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;
i4_temp_pic_num = i4_cur_pic_num;
}
else
{
ps_ref_pic_buf_lx = ps_dpb_mgr->ps_init_dpb[0][0];
i4_temp_pic_num = i4_cur_pic_num;
}
/* Arrange all short term buffers in output order as given by pic_num */
/* Arrange pic_num's less than Curr pic_num in the descending pic_num */
/* order starting from (Curr pic_num - 1) */
for(j = ps_dpb_mgr->u1_num_st_ref_bufs - 1; 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++;
}
}
/* Arrange all Long term buffers in ascending order, in LongtermIndex */
/* Start from LT 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;
}
/* 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++;
}
}
ps_dec->ps_cur_slice->u1_initial_list_size[0] = u1_L0;
}
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