/******************************************************************************
*
* 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
* ih264e_deblk.c
*
* @brief
* This file contains functions that are associated with deblocking
*
* @author
* ittiam
*
* @par List of Functions:
* - ih264e_fill_bs_1mv_1ref_non_mbaff
* - ih264e_calculate_csbp
* - ih264e_compute_bs
* - ih264e_filter_top_edge
* - ih264e_filter_left_edge
* - ih264e_deblock_mb
*
* @remarks
* None
*
*******************************************************************************
*/
/*****************************************************************************/
/* File Includes */
/*****************************************************************************/
/* System include files */
#include <stdio.h>
#include <string.h>
#include <assert.h>
/* User include files */
#include "ih264e_config.h"
#include "ih264_typedefs.h"
#include "iv2.h"
#include "ive2.h"
#include "ih264_macros.h"
#include "ih264_defs.h"
#include "ih264e_defs.h"
#include "ih264e_error.h"
#include "ih264e_bitstream.h"
#include "ime_distortion_metrics.h"
#include "ime_defs.h"
#include "ime_structs.h"
#include "ih264_structs.h"
#include "ih264_trans_quant_itrans_iquant.h"
#include "ih264_inter_pred_filters.h"
#include "ih264_mem_fns.h"
#include "ih264_padding.h"
#include "ih264_intra_pred_filters.h"
#include "ih264_deblk_edge_filters.h"
#include "ih264_cabac_tables.h"
#include "irc_cntrl_param.h"
#include "irc_frame_info_collector.h"
#include "ih264e_rate_control.h"
#include "ih264e_cabac_structs.h"
#include "ih264e_structs.h"
#include "ih264_trans_data.h"
#include "ih264_deblk_tables.h"
#include "ih264e_deblk.h"
/*****************************************************************************/
/* Extern global definitions */
/*****************************************************************************/
/**
******************************************************************************
* @brief BS Table Lookup
* input :
* output :
* @remarks none
******************************************************************************
*/
static const UWORD32 gu4_bs_table[][16] =
{
{
0x00000000, 0x02000000, 0x00020000, 0x02020000,
0x00000200, 0x02000200, 0x00020200, 0x02020200,
0x00000002, 0x02000002, 0x00020002, 0x02020002,
0x00000202, 0x02000202, 0x00020202, 0x02020202
},
{
0x01010101, 0x02010101, 0x01020101, 0x02020101,
0x01010201, 0x02010201, 0x01020201, 0x02020201,
0x01010102, 0x02010102, 0x01020102, 0x02020102,
0x01010202, 0x02010202, 0x01020202, 0x02020202
}
};
/**
******************************************************************************
* @brief Transpose Matrix used in BS
* input :
* output :
* @remarks none
******************************************************************************
*/
static const UWORD16 ih264e_gu2_4x4_v2h_reorder[16] =
{
0x0000, 0x0001, 0x0010, 0x0011,
0x0100, 0x0101, 0x0110, 0x0111,
0x1000, 0x1001, 0x1010, 0x1011,
0x1100, 0x1101, 0x1110, 0x1111
};
/*****************************************************************************/
/* Function Definitions */
/*****************************************************************************/
/**
*******************************************************************************
*
* @brief Fill BS value for all the edges of an mb
*
* @par Description:
* Fill BS value for all the edges of an mb
*
* @param[in] pu4_horz_bs
* Base pointer of horizontal BS table
*
* @param[in] pu4_vert_bs
* Base pointer of vertical BS table
*
* @param[in] u4_left_mb_csbp
* coded sub block pattern of left mb
*
* @param[in] u4_left_mb_csbp
* coded sub block pattern of top mb
*
* @param[in] ps_left_pu
* PU for left MB
*
* @param[in] ps_top_pu
* PU for top MB
*
* @param[in] ps_curr_pu
* PU for current MB
*
*
* @returns none
*
* @remarks none
*
*******************************************************************************
*/
static void ih264e_fill_bs_1mv_1ref_non_mbaff(UWORD32 *pu4_horz_bs,
UWORD32 *pu4_vert_bs,
UWORD32 u4_left_mb_csbp,
UWORD32 u4_top_mb_csbp,
UWORD32 u4_cur_mb_csbp,
enc_pu_t *ps_left_pu,
enc_pu_t *ps_top_pu,
enc_pu_t *ps_curr_pu)
{
/* motion vectors of blks p & q */
WORD16 i16_qMvl0_x, i16_qMvl0_y, i16_pMvl0_x, i16_pMvl0_y;
WORD16 i16_qMvl1_x, i16_qMvl1_y, i16_pMvl1_x, i16_pMvl1_y;
/* temp var */
UWORD32 u4_left_flag, u4_top_flag;
const UWORD32 *bs_map;
UWORD32 u4_reordered_vert_bs_enc, u4_temp;
/* Coded Pattern for Horizontal Edge */
/*-----------------------------------------------------------------------*/
/*u4_nbr_horz_csbp=11C|10C|9C|8C|7C|6C|5C|4C|3C|2C|1C|0C|15T|14T|13T|12T */
/*-----------------------------------------------------------------------*/
UWORD32 u4_nbr_horz_csbp = (u4_cur_mb_csbp << 4) | (u4_top_mb_csbp >> 12);
UWORD32 u4_horz_bs_enc = u4_cur_mb_csbp | u4_nbr_horz_csbp;
/* Coded Pattern for Vertical Edge */
/*-----------------------------------------------------------------------*/
/*u4_left_mb_masked_csbp = 15L|0|0|0|11L|0|0|0|7L|0|0|0|3L|0|0|0 */
/*-----------------------------------------------------------------------*/
UWORD32 u4_left_mb_masked_csbp = u4_left_mb_csbp & CSBP_RIGHT_BLOCK_MASK;
/*-----------------------------------------------------------------------*/
/*u4_cur_mb_masked_csbp =14C|13C|12C|x|10C|9C|8C|x|6C|5C|4C|x|2C|1C|0C|x */
/*-----------------------------------------------------------------------*/
UWORD32 u4_cur_mb_masked_csbp = (u4_cur_mb_csbp << 1)
& (~CSBP_LEFT_BLOCK_MASK);
/*-----------------------------------------------------------------------*/
/*u4_nbr_vert_csbp=14C|13C|12C|15L|10C|9C|8C|11L|6C|5C|4C|7L|2C|1C|0C|3L */
/*-----------------------------------------------------------------------*/
UWORD32 u4_nbr_vert_csbp = (u4_cur_mb_masked_csbp)
| (u4_left_mb_masked_csbp >> 3);
UWORD32 u4_vert_bs_enc = u4_cur_mb_csbp | u4_nbr_vert_csbp;
/* BS Calculation for MB Boundary Edges */
/* BS calculation for 1 2 3 horizontal boundary */
bs_map = gu4_bs_table[0];
pu4_horz_bs[1] = bs_map[(u4_horz_bs_enc >> 4) & 0xF];
pu4_horz_bs[2] = bs_map[(u4_horz_bs_enc >> 8) & 0xF];
pu4_horz_bs[3] = bs_map[(u4_horz_bs_enc >> 12) & 0xF];
/* BS calculation for 5 6 7 vertical boundary */
/* Do 4x4 tranpose of u4_vert_bs_enc by using look up table for reorder */
u4_reordered_vert_bs_enc = ih264e_gu2_4x4_v2h_reorder[u4_vert_bs_enc & 0xF];
u4_temp = ih264e_gu2_4x4_v2h_reorder[(u4_vert_bs_enc >> 4) & 0xF];
u4_reordered_vert_bs_enc |= (u4_temp << 1);
u4_temp = ih264e_gu2_4x4_v2h_reorder[(u4_vert_bs_enc >> 8) & 0xF];
u4_reordered_vert_bs_enc |= (u4_temp << 2);
u4_temp = ih264e_gu2_4x4_v2h_reorder[(u4_vert_bs_enc >> 12) & 0xF];
u4_reordered_vert_bs_enc |= (u4_temp << 3);
pu4_vert_bs[1] = bs_map[(u4_reordered_vert_bs_enc >> 4) & 0xF];
pu4_vert_bs[2] = bs_map[(u4_reordered_vert_bs_enc >> 8) & 0xF];
pu4_vert_bs[3] = bs_map[(u4_reordered_vert_bs_enc >> 12) & 0xF];
/* BS Calculation for MB Boundary Edges */
if (ps_top_pu->b1_intra_flag)
{
pu4_horz_bs[0] = 0x04040404;
}
else
{
if (ps_curr_pu->b2_pred_mode != ps_top_pu->b2_pred_mode)
{
u4_top_flag = 1;
}
else if(ps_curr_pu->b2_pred_mode != 2)
{
i16_pMvl0_x = ps_top_pu->s_me_info[ps_top_pu->b2_pred_mode].s_mv.i2_mvx;
i16_pMvl0_y = ps_top_pu->s_me_info[ps_top_pu->b2_pred_mode].s_mv.i2_mvy;
i16_qMvl0_x = ps_curr_pu->s_me_info[ps_curr_pu->b2_pred_mode].s_mv.i2_mvx;
i16_qMvl0_y = ps_curr_pu->s_me_info[ps_curr_pu->b2_pred_mode].s_mv.i2_mvy;
u4_top_flag = (ABS((i16_pMvl0_x - i16_qMvl0_x)) >= 4)
| (ABS((i16_pMvl0_y - i16_qMvl0_y)) >= 4);
}
else
{
i16_pMvl0_x = ps_top_pu->s_me_info[PRED_L0].s_mv.i2_mvx;
i16_pMvl0_y = ps_top_pu->s_me_info[PRED_L0].s_mv.i2_mvy;
i16_pMvl1_x = ps_top_pu->s_me_info[PRED_L1].s_mv.i2_mvx;
i16_pMvl1_y = ps_top_pu->s_me_info[PRED_L1].s_mv.i2_mvy;
i16_qMvl0_x = ps_curr_pu->s_me_info[PRED_L0].s_mv.i2_mvx;
i16_qMvl0_y = ps_curr_pu->s_me_info[PRED_L0].s_mv.i2_mvy;
i16_qMvl1_x = ps_curr_pu->s_me_info[PRED_L1].s_mv.i2_mvx;
i16_qMvl1_y = ps_curr_pu->s_me_info[PRED_L1].s_mv.i2_mvy;
u4_top_flag = (ABS((i16_pMvl0_x - i16_qMvl0_x)) >= 4)
| (ABS((i16_pMvl0_y - i16_qMvl0_y)) >= 4)
| (ABS((i16_pMvl1_x - i16_qMvl1_x)) >= 4)
| (ABS((i16_pMvl1_y - i16_qMvl1_y)) >= 4);
}
bs_map = gu4_bs_table[!!u4_top_flag];
pu4_horz_bs[0] = bs_map[u4_horz_bs_enc & 0xF];
}
if (ps_left_pu->b1_intra_flag)
{
pu4_vert_bs[0] = 0x04040404;
}
else
{
if (ps_curr_pu->b2_pred_mode != ps_left_pu->b2_pred_mode)
{
u4_left_flag = 1;
}
else if(ps_curr_pu->b2_pred_mode != 2)/* Not bipred */
{
i16_pMvl0_x = ps_left_pu->s_me_info[ps_left_pu->b2_pred_mode].s_mv.i2_mvx;
i16_pMvl0_y = ps_left_pu->s_me_info[ps_left_pu->b2_pred_mode].s_mv.i2_mvy;
i16_qMvl0_x = ps_curr_pu->s_me_info[ps_curr_pu->b2_pred_mode].s_mv.i2_mvx;
i16_qMvl0_y = ps_curr_pu->s_me_info[ps_curr_pu->b2_pred_mode].s_mv.i2_mvy;
u4_left_flag = (ABS((i16_pMvl0_x - i16_qMvl0_x)) >= 4)
| (ABS((i16_pMvl0_y - i16_qMvl0_y)) >= 4);
}
else
{
i16_pMvl0_x = ps_left_pu->s_me_info[PRED_L0].s_mv.i2_mvx;
i16_pMvl0_y = ps_left_pu->s_me_info[PRED_L0].s_mv.i2_mvy;
i16_pMvl1_x = ps_left_pu->s_me_info[PRED_L1].s_mv.i2_mvx;
i16_pMvl1_y = ps_left_pu->s_me_info[PRED_L1].s_mv.i2_mvy;
i16_qMvl0_x = ps_curr_pu->s_me_info[PRED_L0].s_mv.i2_mvx;
i16_qMvl0_y = ps_curr_pu->s_me_info[PRED_L0].s_mv.i2_mvy;
i16_qMvl1_x = ps_curr_pu->s_me_info[PRED_L1].s_mv.i2_mvx;
i16_qMvl1_y = ps_curr_pu->s_me_info[PRED_L1].s_mv.i2_mvy;
u4_left_flag = (ABS((i16_pMvl0_x - i16_qMvl0_x)) >= 4)
| (ABS((i16_pMvl0_y - i16_qMvl0_y)) >= 4)
| (ABS((i16_pMvl1_x - i16_qMvl1_x)) >= 4)
| (ABS((i16_pMvl1_y - i16_qMvl1_y)) >= 4);
}
bs_map = gu4_bs_table[!!u4_left_flag];
pu4_vert_bs[0] = bs_map[u4_reordered_vert_bs_enc & 0xF];
}
}
/**
*******************************************************************************
*
* @brief calculate coded subblock pattern from nnz
*
* @par Description:
* calculate coded subblock pattern from nnz
*
* @param[in] ps_proc
* process context
*
* @returns csbp
*
* @remarks none
*
*******************************************************************************
*/
static UWORD32 ih264e_calculate_csbp(process_ctxt_t *ps_proc)
{
/* number of non zeros for each tx blk */
UWORD8 *pu1_curr_nnz = (UWORD8 *)ps_proc->au4_nnz;
/* csbp */
UWORD32 u4_csbp = 0;
/* temp var */
WORD32 i4_i;
pu1_curr_nnz += 1;
/* Creating Subblock pattern for current MB */
/* 15C|14C|13C|12C|11C|10C|9C|8C|7C|6C|5C|4C|3C|2C|1C|0C */
for (i4_i = 0; i4_i < 16; i4_i++ )
{
u4_csbp |= ((!!*(pu1_curr_nnz + i4_i))<< i4_i);
}
return u4_csbp;
}
/**
*******************************************************************************
*
* @brief This function computes blocking strength for an mb
*
* @par Description:
* This function computes blocking strength for an mb
*
* @param[in] ps_proc
* process context
*
* @returns none
*
* @remarks
*
*******************************************************************************
*/
void ih264e_compute_bs(process_ctxt_t * ps_proc)
{
/* deblk bs context */
bs_ctxt_t *ps_bs = &(ps_proc->s_deblk_ctxt.s_bs_ctxt);
/* vertical blocking strength */
UWORD32 *pu4_pic_vert_bs;
/* horizontal blocking strength */
UWORD32 *pu4_pic_horz_bs;
/* mb indices */
WORD32 i4_mb_x, i4_mb_y;
/* is intra */
WORD32 i4_intra;
/* temp var */
WORD32 i4_wd_mbs = ps_proc->i4_wd_mbs;
/* init indices */
i4_mb_x = ps_bs->i4_mb_x;
i4_mb_y = ps_bs->i4_mb_y;
/* init pointers */
pu4_pic_vert_bs = ps_bs->pu4_pic_vert_bs + ((i4_mb_y * i4_wd_mbs) + i4_mb_x) * 4;
pu4_pic_horz_bs = ps_bs->pu4_pic_horz_bs + ((i4_mb_y * i4_wd_mbs) + i4_mb_x) * 4;
/* is intra? */
i4_intra = ps_proc->u4_is_intra;
/* compute blocking strength */
if (i4_intra)
{
pu4_pic_vert_bs[0] = 0x04040404;
pu4_pic_vert_bs[1] = pu4_pic_vert_bs[2] = pu4_pic_vert_bs[3] = 0x03030303;
pu4_pic_horz_bs[0] = 0x04040404;
pu4_pic_horz_bs[1] = pu4_pic_horz_bs[2] = pu4_pic_horz_bs[3] = 0x03030303;
}
else
{
/* left mb syntax info */
mb_info_t *ps_left_mb_syntax_ele = &ps_proc->s_left_mb_syntax_ele;
/* top mb syntax info */
mb_info_t *ps_top_mb_syntax_ele = ps_proc->ps_top_row_mb_syntax_ele + i4_mb_x;
/* top row motion vector info */
enc_pu_t *ps_top_row_pu = ps_proc->ps_top_row_pu + i4_mb_x;
/* csbp for curr mb */
ps_proc->u4_csbp = ih264e_calculate_csbp(ps_proc);
/* csbp for ngbrs */
if (i4_mb_x == 0)
{
ps_left_mb_syntax_ele->u4_csbp = 0;
ps_proc->s_left_mb_pu.b1_intra_flag = 0;
ps_proc->s_left_mb_pu.b2_pred_mode = ps_proc->ps_pu->b2_pred_mode;
ps_proc->s_left_mb_pu.s_me_info[0].s_mv = ps_proc->ps_pu->s_me_info[0].s_mv;
ps_proc->s_left_mb_pu.s_me_info[1].s_mv = ps_proc->ps_pu->s_me_info[1].s_mv;
}
if (i4_mb_y == 0)
{
ps_top_mb_syntax_ele->u4_csbp = 0;
ps_top_row_pu->b1_intra_flag = 0;
ps_top_row_pu->b2_pred_mode = ps_proc->ps_pu->b2_pred_mode;
ps_top_row_pu->s_me_info[0].s_mv = ps_proc->ps_pu->s_me_info[0].s_mv;
ps_top_row_pu->s_me_info[1].s_mv = ps_proc->ps_pu->s_me_info[1].s_mv;
}
ih264e_fill_bs_1mv_1ref_non_mbaff(pu4_pic_horz_bs,
pu4_pic_vert_bs,
ps_left_mb_syntax_ele->u4_csbp,
ps_top_mb_syntax_ele->u4_csbp,
ps_proc->u4_csbp,
&ps_proc->s_left_mb_pu,
ps_top_row_pu,
ps_proc->ps_pu);
}
return ;
}
/**
*******************************************************************************
*
* @brief This function performs deblocking of top horizontal edge
*
* @par Description:
* This function performs deblocking of top horizontal edge
*
* @param[in] ps_codec
* pointer to codec context
*
* @param[in] ps_proc
* pointer to proc context
*
* @param[in] pu1_mb_qp
* pointer to mb quantization param
*
* @param[in] pu1_cur_pic_luma
* pointer to recon buffer luma
*
* @param[in] pu1_cur_pic_chroma
* pointer to recon buffer chroma
*
* @param[in] pu4_pic_horz_bs
* pointer to horizontal blocking strength
*
* @returns none
*
* @remarks none
*
*******************************************************************************
*/
static void ih264e_filter_top_edge(codec_t *ps_codec,
process_ctxt_t *ps_proc,
UWORD8 *pu1_mb_qp,
UWORD8 *pu1_cur_pic_luma,
UWORD8 *pu1_cur_pic_chroma,
UWORD32 *pu4_pic_horz_bs)
{
/* strd */
WORD32 i4_rec_strd = ps_proc->i4_rec_strd;
/* deblk params */
UWORD32 u4_alpha_luma, u4_beta_luma, u4_qp_luma, u4_idx_A_luma, u4_idx_B_luma, u4_qp_p, u4_qp_q;
UWORD32 u4_alpha_chroma, u4_beta_chroma, u4_qp_chroma, u4_idx_A_chroma, u4_idx_B_chroma;
/* collect qp of left & top mb */
u4_qp_p = pu1_mb_qp[-ps_proc->i4_wd_mbs];
u4_qp_q = pu1_mb_qp[0];
/********/
/* luma */
/********/
u4_qp_luma = (u4_qp_p + u4_qp_q + 1) >> 1;
/* filter offset A and filter offset B have to be received from slice header */
/* TODO : for now lets set these offsets as zero */
u4_idx_A_luma = MIN(51, u4_qp_luma + 0);
u4_idx_B_luma = MIN(51, u4_qp_luma + 0);
/* alpha, beta computation */
u4_alpha_luma = gu1_ih264_alpha_table[u4_idx_A_luma];
u4_beta_luma = gu1_ih264_beta_table[u4_idx_B_luma];
/**********/
/* chroma */
/**********/
u4_qp_chroma = (gu1_qpc_fqpi[u4_qp_p] + gu1_qpc_fqpi[u4_qp_q] + 1) >> 1;
/* filter offset A and filter offset B have to be received from slice header */
/* TODO : for now lets set these offsets as zero */
u4_idx_A_chroma = MIN(51, u4_qp_chroma + 0);
u4_idx_B_chroma = MIN(51, u4_qp_chroma + 0);
/* alpha, beta computation */
u4_alpha_chroma = gu1_ih264_alpha_table[u4_idx_A_chroma];
u4_beta_chroma = gu1_ih264_beta_table[u4_idx_B_chroma];
/* deblk edge */
/* top Horizontal edge - allowed to be deblocked ? */
if (pu4_pic_horz_bs[0] == 0x04040404)
{
/* strong filter */
ps_codec->pf_deblk_luma_horz_bs4(pu1_cur_pic_luma, i4_rec_strd, u4_alpha_luma, u4_beta_luma);
ps_codec->pf_deblk_chroma_horz_bs4(pu1_cur_pic_chroma, i4_rec_strd, u4_alpha_chroma, u4_beta_chroma, u4_alpha_chroma, u4_beta_chroma);
}
else
{
/* normal filter */
ps_codec->pf_deblk_luma_horz_bslt4(pu1_cur_pic_luma, i4_rec_strd, u4_alpha_luma,
u4_beta_luma, pu4_pic_horz_bs[0],
gu1_ih264_clip_table[u4_idx_A_luma]);
ps_codec->pf_deblk_chroma_horz_bslt4(pu1_cur_pic_chroma, i4_rec_strd, u4_alpha_chroma,
u4_beta_chroma, u4_alpha_chroma, u4_beta_chroma, pu4_pic_horz_bs[0],
gu1_ih264_clip_table[u4_idx_A_chroma], gu1_ih264_clip_table[u4_idx_A_chroma]);
}
}
/**
*******************************************************************************
*
* @brief This function performs deblocking of left vertical edge
*
* @par Description:
* This function performs deblocking of top horizontal edge
*
* @param[in] ps_codec
* pointer to codec context
*
* @param[in] ps_proc
* pointer to proc context
*
* @param[in] pu1_mb_qp
* pointer to mb quantization param
*
* @param[in] pu1_cur_pic_luma
* pointer to recon buffer luma
*
* @param[in] pu1_cur_pic_chroma
* pointer to recon buffer chroma
*
* @param[in] pu4_pic_vert_bs
* pointer to vertical blocking strength
*
* @returns none
*
* @remarks none
*
*******************************************************************************
*/
static void ih264e_filter_left_edge(codec_t *ps_codec,
process_ctxt_t *ps_proc,
UWORD8 *pu1_mb_qp,
UWORD8 *pu1_cur_pic_luma,
UWORD8 *pu1_cur_pic_chroma,
UWORD32 *pu4_pic_vert_bs)
{
/* strd */
WORD32 i4_rec_strd = ps_proc->i4_rec_strd;
/* deblk params */
UWORD32 u4_alpha_luma, u4_beta_luma, u4_qp_luma, u4_idx_A_luma, u4_idx_B_luma, u4_qp_p, u4_qp_q;
UWORD32 u4_alpha_chroma, u4_beta_chroma, u4_qp_chroma, u4_idx_A_chroma, u4_idx_B_chroma;
/* collect qp of left & curr mb */
u4_qp_p = pu1_mb_qp[-1];
u4_qp_q = pu1_mb_qp[0];
/********/
/* luma */
/********/
u4_qp_luma = (u4_qp_p + u4_qp_q + 1) >> 1;
/* filter offset A and filter offset B have to be received from slice header */
/* TODO : for now lets set these offsets as zero */
u4_idx_A_luma = MIN(51, u4_qp_luma + 0);
u4_idx_B_luma = MIN(51, u4_qp_luma + 0);
/* alpha, beta computation */
u4_alpha_luma = gu1_ih264_alpha_table[u4_idx_A_luma];
u4_beta_luma = gu1_ih264_beta_table[u4_idx_B_luma];
/**********/
/* chroma */
/**********/
u4_qp_chroma = (gu1_qpc_fqpi[u4_qp_p] + gu1_qpc_fqpi[u4_qp_q] + 1) >> 1;
/* filter offset A and filter offset B have to be received from slice header */
/* TODO : for now lets set these offsets as zero */
u4_idx_A_chroma = MIN(51, u4_qp_chroma + 0);
u4_idx_B_chroma = MIN(51, u4_qp_chroma + 0);
/* alpha, beta computation */
u4_alpha_chroma = gu1_ih264_alpha_table[u4_idx_A_chroma];
u4_beta_chroma = gu1_ih264_beta_table[u4_idx_B_chroma];
/* deblk edge */
if (pu4_pic_vert_bs[0] == 0x04040404)
{
/* strong filter */
ps_codec->pf_deblk_luma_vert_bs4(pu1_cur_pic_luma, i4_rec_strd, u4_alpha_luma, u4_beta_luma);
ps_codec->pf_deblk_chroma_vert_bs4(pu1_cur_pic_chroma, i4_rec_strd, u4_alpha_chroma, u4_beta_chroma, u4_alpha_chroma, u4_beta_chroma);
}
else
{
/* normal filter */
ps_codec->pf_deblk_luma_vert_bslt4(pu1_cur_pic_luma, i4_rec_strd,
u4_alpha_luma, u4_beta_luma,
pu4_pic_vert_bs[0],
gu1_ih264_clip_table[u4_idx_A_luma]);
ps_codec->pf_deblk_chroma_vert_bslt4(pu1_cur_pic_chroma, i4_rec_strd, u4_alpha_chroma,
u4_beta_chroma, u4_alpha_chroma, u4_beta_chroma, pu4_pic_vert_bs[0],
gu1_ih264_clip_table[u4_idx_A_chroma], gu1_ih264_clip_table[u4_idx_A_chroma]);
}
}
/**
*******************************************************************************
*
* @brief This function performs deblocking on an mb
*
* @par Description:
* This function performs deblocking on an mb
*
* @param[in] ps_proc
* process context corresponding to the job
*
* @param[in] ps_deblk
* pointer to deblock context
*
* @returns none
*
* @remarks none
*
*******************************************************************************
*/
void ih264e_deblock_mb(process_ctxt_t *ps_proc, deblk_ctxt_t * ps_deblk)
{
/* codec ctxt */
codec_t *ps_codec = ps_proc->ps_codec;
/* ngbr availability */
UWORD8 u1_mb_a, u1_mb_b;
/* mb indices */
WORD32 i4_mb_x = ps_deblk->i4_mb_x, i4_mb_y = ps_deblk->i4_mb_y;
/* pic qp ptr */
UWORD8 *pu1_pic_qp = ps_deblk->s_bs_ctxt.pu1_pic_qp;
/* vertical blocking strength */
UWORD32 *pu4_pic_vert_bs = ps_deblk->s_bs_ctxt.pu4_pic_vert_bs;
/* horizontal blocking strength */
UWORD32 *pu4_pic_horz_bs = ps_deblk->s_bs_ctxt.pu4_pic_horz_bs;
/* src buffers luma */
UWORD8 *pu1_cur_pic_luma = ps_deblk->pu1_cur_pic_luma;
/* src buffers chroma */
UWORD8 *pu1_cur_pic_chroma = ps_deblk->pu1_cur_pic_chroma;
/* strd */
WORD32 i4_rec_strd = ps_proc->i4_rec_strd;
/* deblk params */
UWORD32 u4_alpha_luma, u4_beta_luma, u4_qp_luma, u4_idx_A_luma, u4_idx_B_luma;
UWORD32 u4_alpha_chroma, u4_beta_chroma, u4_qp_chroma, u4_idx_A_chroma, u4_idx_B_chroma;
/* temp var */
UWORD32 push_ptr = (i4_mb_y * ps_proc->i4_wd_mbs) + i4_mb_x;
/* derive neighbor availability */
/* In slice mode the edges of mbs that lie on the slice boundary are not deblocked */
/* deblocking filter idc '2' */
if (ps_codec->s_cfg.e_slice_mode != IVE_SLICE_MODE_NONE)
{
/* slice index */
UWORD8 *pu1_slice_idx = ps_deblk->pu1_slice_idx;
pu1_slice_idx += (i4_mb_y * ps_proc->i4_wd_mbs);
/* left macroblock availability */
u1_mb_a = (i4_mb_x == 0 ||
(pu1_slice_idx[i4_mb_x - 1 ] != pu1_slice_idx[i4_mb_x]))? 0 : 1;
/* top macroblock availability */
u1_mb_b = (i4_mb_y == 0 ||
(pu1_slice_idx[i4_mb_x-ps_proc->i4_wd_mbs] != pu1_slice_idx[i4_mb_x]))? 0 : 1;
}
else
{
/* left macroblock availability */
u1_mb_a = (i4_mb_x == 0)? 0 : 1;
/* top macroblock availability */
u1_mb_b = (i4_mb_y == 0)? 0 : 1;
}
pu1_pic_qp += push_ptr;
pu4_pic_vert_bs += push_ptr * 4;
pu4_pic_horz_bs += push_ptr * 4;
/********/
/* luma */
/********/
u4_qp_luma = pu1_pic_qp[0];
/* filter offset A and filter offset B have to be received from slice header */
/* TODO : for now lets set these offsets as zero */
u4_idx_A_luma = MIN(51, u4_qp_luma + 0);
u4_idx_B_luma = MIN(51, u4_qp_luma + 0);
/* alpha, beta computation */
u4_alpha_luma = gu1_ih264_alpha_table[u4_idx_A_luma];
u4_beta_luma = gu1_ih264_beta_table[u4_idx_B_luma];
/**********/
/* chroma */
/**********/
u4_qp_chroma = gu1_qpc_fqpi[u4_qp_luma];
/* filter offset A and filter offset B have to be received from slice header */
/* TODO : for now lets set these offsets as zero */
u4_idx_A_chroma = MIN(51, u4_qp_chroma + 0);
u4_idx_B_chroma = MIN(51, u4_qp_chroma + 0);
/* alpha, beta computation */
u4_alpha_chroma = gu1_ih264_alpha_table[u4_idx_A_chroma];
u4_beta_chroma = gu1_ih264_beta_table[u4_idx_B_chroma];
/* Deblock vertical edges */
/* left vertical edge 0 - allowed to be deblocked ? */
if (u1_mb_a)
{
ih264e_filter_left_edge(ps_codec, ps_proc, pu1_pic_qp, pu1_cur_pic_luma, pu1_cur_pic_chroma, pu4_pic_vert_bs);
}
/* vertical edge 1 */
if (pu4_pic_vert_bs[1] == 0x04040404)
{
/* strong filter */
ps_codec->pf_deblk_luma_vert_bs4(pu1_cur_pic_luma + 4, i4_rec_strd, u4_alpha_luma, u4_beta_luma);
}
else
{
/* normal filter */
ps_codec->pf_deblk_luma_vert_bslt4(pu1_cur_pic_luma + 4, i4_rec_strd,
u4_alpha_luma, u4_beta_luma,
pu4_pic_vert_bs[1],
gu1_ih264_clip_table[u4_idx_A_luma]);
}
/* vertical edge 2 */
if (pu4_pic_vert_bs[2] == 0x04040404)
{
/* strong filter */
ps_codec->pf_deblk_luma_vert_bs4(pu1_cur_pic_luma + 8, i4_rec_strd, u4_alpha_luma, u4_beta_luma);
ps_codec->pf_deblk_chroma_vert_bs4(pu1_cur_pic_chroma + 8, i4_rec_strd, u4_alpha_chroma, u4_beta_chroma, u4_alpha_chroma, u4_beta_chroma);
}
else
{
/* normal filter */
ps_codec->pf_deblk_luma_vert_bslt4(pu1_cur_pic_luma + 8, i4_rec_strd, u4_alpha_luma,
u4_beta_luma, pu4_pic_vert_bs[2],
gu1_ih264_clip_table[u4_idx_A_luma]);
ps_codec->pf_deblk_chroma_vert_bslt4(pu1_cur_pic_chroma + 8, i4_rec_strd, u4_alpha_chroma,
u4_beta_chroma, u4_alpha_chroma, u4_beta_chroma, pu4_pic_vert_bs[2],
gu1_ih264_clip_table[u4_idx_A_chroma], gu1_ih264_clip_table[u4_idx_A_chroma]);
}
/* vertical edge 3 */
if (pu4_pic_vert_bs[3] == 0x04040404)
{
/* strong filter */
ps_codec->pf_deblk_luma_vert_bs4(pu1_cur_pic_luma + 12, i4_rec_strd, u4_alpha_luma, u4_beta_luma);
}
else
{
/* normal filter */
ps_codec->pf_deblk_luma_vert_bslt4(pu1_cur_pic_luma + 12, i4_rec_strd, u4_alpha_luma,
u4_beta_luma, pu4_pic_vert_bs[3],
gu1_ih264_clip_table[u4_idx_A_luma]);
}
/* Deblock Horizontal edges */
/* Horizontal edge 0 */
if (u1_mb_b)
{
ih264e_filter_top_edge(ps_codec, ps_proc, pu1_pic_qp, pu1_cur_pic_luma, pu1_cur_pic_chroma, pu4_pic_horz_bs);
}
/* horizontal edge 1 */
if (pu4_pic_horz_bs[1] == 0x04040404)
{
/* strong filter */
ps_codec->pf_deblk_luma_horz_bs4(pu1_cur_pic_luma + 4 * i4_rec_strd, i4_rec_strd, u4_alpha_luma, u4_beta_luma);
}
else
{
/* normal filter */
ps_codec->pf_deblk_luma_horz_bslt4(pu1_cur_pic_luma + 4 * i4_rec_strd, i4_rec_strd, u4_alpha_luma,
u4_beta_luma, pu4_pic_horz_bs[1],
gu1_ih264_clip_table[u4_idx_A_luma]);
}
/* horizontal edge 2 */
if (pu4_pic_horz_bs[2] == 0x04040404)
{
/* strong filter */
ps_codec->pf_deblk_luma_horz_bs4(pu1_cur_pic_luma + 8 * i4_rec_strd, i4_rec_strd, u4_alpha_luma, u4_beta_luma);
ps_codec->pf_deblk_chroma_horz_bs4(pu1_cur_pic_chroma + 4 * i4_rec_strd, i4_rec_strd, u4_alpha_chroma, u4_beta_chroma, u4_alpha_chroma, u4_beta_chroma);
}
else
{
/* normal filter */
ps_codec->pf_deblk_luma_horz_bslt4(pu1_cur_pic_luma + 8 * i4_rec_strd, i4_rec_strd, u4_alpha_luma,
u4_beta_luma, pu4_pic_horz_bs[2],
gu1_ih264_clip_table[u4_idx_A_luma]);
ps_codec->pf_deblk_chroma_horz_bslt4(pu1_cur_pic_chroma + 4 * i4_rec_strd, i4_rec_strd, u4_alpha_chroma,
u4_beta_chroma, u4_alpha_chroma, u4_beta_chroma, pu4_pic_horz_bs[2],
gu1_ih264_clip_table[u4_idx_A_chroma], gu1_ih264_clip_table[u4_idx_A_chroma]);
}
/* horizontal edge 3 */
if (pu4_pic_horz_bs[3] == 0x04040404)
{
/* strong filter */
ps_codec->pf_deblk_luma_horz_bs4(pu1_cur_pic_luma + 12 * i4_rec_strd, i4_rec_strd, u4_alpha_luma, u4_beta_luma);
}
else
{
/* normal filter */
ps_codec->pf_deblk_luma_horz_bslt4(pu1_cur_pic_luma + 12 * i4_rec_strd, i4_rec_strd, u4_alpha_luma,
u4_beta_luma, pu4_pic_horz_bs[3],
gu1_ih264_clip_table[u4_idx_A_luma]);
}
return ;
}