/******************************************************************************
*
* 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
*/
#include "ih264_typedefs.h"
#include "ih264_macros.h"
#include "ih264_platform_macros.h"
#include "ih264d_bitstrm.h"
#include "ih264d_structs.h"
#include "ih264d_parse_cavlc.h"
#include "ih264d_defs.h"
#include "ih264d_defs.h"
#include "ih264d_defs.h"
#include "ih264d_parse_slice.h"
#include "ih264d_tables.h"
#include "ih264d_utils.h"
#include "ih264d_nal.h"
#include "ih264d_deblocking.h"
#include "ih264d_mem_request.h"
#include "ih264d_debug.h"
#include "ih264d_error_handler.h"
#include "ih264d_mb_utils.h"
#include "ih264d_sei.h"
#include "ih264d_vui.h"
#include "ih264d_tables.h"
#define IDCT_BLOCK_WIDTH8X8 8
void ih264d_scaling_list(WORD16 *pi2_scaling_list,
WORD32 i4_size_of_scalinglist,
UWORD8 *pu1_use_default_scaling_matrix_flag,
dec_bit_stream_t *ps_bitstrm)
{
WORD32 i4_j, i4_delta_scale, i4_lastScale = 8, i4_nextScale = 8;
UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer;
UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst;
*pu1_use_default_scaling_matrix_flag = 0;
for(i4_j = 0; i4_j < i4_size_of_scalinglist; i4_j++)
{
if(i4_nextScale != 0)
{
i4_delta_scale = ih264d_sev(pu4_bitstrm_ofst,
pu4_bitstrm_buf);
i4_nextScale = ((i4_lastScale + i4_delta_scale + 256) & 0xff);
*pu1_use_default_scaling_matrix_flag = ((i4_j == 0)
&& (i4_nextScale == 0));
}
pi2_scaling_list[i4_j] =
(i4_nextScale == 0) ? (i4_lastScale) : (i4_nextScale);
i4_lastScale = pi2_scaling_list[i4_j];
}
}
void ih264d_form_default_scaling_matrix(dec_struct_t *ps_dec)
{
/*************************************************************************/
/* perform the inverse scanning for the frame and field scaling matrices */
/*************************************************************************/
{
UWORD8 *pu1_inv_scan;
WORD32 i4_i, i4_j;
pu1_inv_scan = (UWORD8 *)gau1_ih264d_inv_scan;
/* for all 4x4 matrices */
for(i4_i = 0; i4_i < 6; i4_i++)
{
for(i4_j = 0; i4_j < 16; i4_j++)
{
ps_dec->s_high_profile.i2_scalinglist4x4[i4_i][pu1_inv_scan[i4_j]] =
16;
}
}
/* for all 8x8 matrices */
for(i4_i = 0; i4_i < 2; i4_i++)
{
for(i4_j = 0; i4_j < 64; i4_j++)
{
ps_dec->s_high_profile.i2_scalinglist8x8[i4_i][gau1_ih264d_inv_scan_prog8x8_cabac[i4_j]] =
16;
}
}
}
}
void ih264d_form_scaling_matrix_picture(dec_seq_params_t *ps_seq,
dec_pic_params_t *ps_pic,
dec_struct_t *ps_dec)
{
/* default scaling matrices */
WORD32 i4_i;
/* check the SPS first */
if(ps_seq->i4_seq_scaling_matrix_present_flag)
{
for(i4_i = 0; i4_i < 8; i4_i++)
{
if(i4_i < 6)
{
/* fall-back rule A */
if(!ps_seq->u1_seq_scaling_list_present_flag[i4_i])
{
if((i4_i == 0) || (i4_i == 3))
{
ps_dec->s_high_profile.pi2_scale_mat[i4_i] =
(i4_i == 0) ? (WORD16 *)(gai2_ih264d_default_intra4x4) : (WORD16 *)(gai2_ih264d_default_inter4x4);
}
else
{
ps_dec->s_high_profile.pi2_scale_mat[i4_i] =
ps_dec->s_high_profile.pi2_scale_mat[i4_i
- 1];
}
}
else
{
if(ps_seq->u1_use_default_scaling_matrix_flag[i4_i])
{
ps_dec->s_high_profile.pi2_scale_mat[i4_i] =
(i4_i < 3) ? (WORD16 *)(gai2_ih264d_default_intra4x4) : (WORD16 *)(gai2_ih264d_default_inter4x4);
}
else
{
ps_dec->s_high_profile.pi2_scale_mat[i4_i] =
ps_seq->i2_scalinglist4x4[i4_i];
}
}
}
else
{
/* fall-back rule A */
if((!ps_seq->u1_seq_scaling_list_present_flag[i4_i])
|| (ps_seq->u1_use_default_scaling_matrix_flag[i4_i]))
{
ps_dec->s_high_profile.pi2_scale_mat[i4_i] =
(i4_i == 6) ? ((WORD16*)gai2_ih264d_default_intra8x8) : ((WORD16*)gai2_ih264d_default_inter8x8);
}
else
{
ps_dec->s_high_profile.pi2_scale_mat[i4_i] =
ps_seq->i2_scalinglist8x8[i4_i - 6];
}
}
}
}
/* checking for the PPS */
if(ps_pic->i4_pic_scaling_matrix_present_flag)
{
for(i4_i = 0; i4_i < 8; i4_i++)
{
if(i4_i < 6)
{
/* fall back rule B */
if(!ps_pic->u1_pic_scaling_list_present_flag[i4_i])
{
if((i4_i == 0) || (i4_i == 3))
{
if(!ps_seq->i4_seq_scaling_matrix_present_flag)
{
ps_dec->s_high_profile.pi2_scale_mat[i4_i] =
(i4_i == 0) ? (WORD16 *)(gai2_ih264d_default_intra4x4) : (WORD16 *)(gai2_ih264d_default_inter4x4);
}
}
else
{
ps_dec->s_high_profile.pi2_scale_mat[i4_i] =
ps_dec->s_high_profile.pi2_scale_mat[i4_i
- 1];
}
}
else
{
if(ps_pic->u1_pic_use_default_scaling_matrix_flag[i4_i])
{
ps_dec->s_high_profile.pi2_scale_mat[i4_i] =
(i4_i < 3) ? (WORD16 *)(gai2_ih264d_default_intra4x4) : (WORD16 *)(gai2_ih264d_default_inter4x4);
}
else
{
ps_dec->s_high_profile.pi2_scale_mat[i4_i] =
ps_pic->i2_pic_scalinglist4x4[i4_i];
}
}
}
else
{
if(!ps_pic->u1_pic_scaling_list_present_flag[i4_i])
{
if(!ps_seq->u1_seq_scaling_list_present_flag[i4_i])
{
ps_dec->s_high_profile.pi2_scale_mat[i4_i] =
(i4_i == 6) ? ((WORD16*)gai2_ih264d_default_intra8x8) : ((WORD16*)gai2_ih264d_default_inter8x8);
}
}
else
{
if(ps_pic->u1_pic_use_default_scaling_matrix_flag[i4_i])
{
ps_dec->s_high_profile.pi2_scale_mat[i4_i] =
(i4_i == 6) ? (WORD16 *)(gai2_ih264d_default_intra8x8) : (WORD16 *)(gai2_ih264d_default_inter8x8);
}
else
{
ps_dec->s_high_profile.pi2_scale_mat[i4_i] =
ps_pic->i2_pic_scalinglist8x8[i4_i - 6];
}
}
}
}
}
/*************************************************************************/
/* perform the inverse scanning for the frame and field scaling matrices */
/*************************************************************************/
{
UWORD8 *pu1_inv_scan_4x4;
WORD32 i4_i, i4_j;
pu1_inv_scan_4x4 = (UWORD8 *)gau1_ih264d_inv_scan;
/* for all 4x4 matrices */
for(i4_i = 0; i4_i < 6; i4_i++)
{
for(i4_j = 0; i4_j < 16; i4_j++)
{
ps_dec->s_high_profile.i2_scalinglist4x4[i4_i][pu1_inv_scan_4x4[i4_j]] =
ps_dec->s_high_profile.pi2_scale_mat[i4_i][i4_j];
}
}
/* for all 8x8 matrices */
for(i4_i = 0; i4_i < 2; i4_i++)
{
for(i4_j = 0; i4_j < 64; i4_j++)
{
ps_dec->s_high_profile.i2_scalinglist8x8[i4_i][gau1_ih264d_inv_scan_prog8x8_cabac[i4_j]] =
ps_dec->s_high_profile.pi2_scale_mat[i4_i + 6][i4_j];
}
}
}
}