| /****************************************************************************** |
| * |
| * 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_intra_mb.c |
| * |
| * \brief |
| * Contains routines that decode a I slice type |
| * |
| * Detailed_description |
| * |
| * \date |
| * 07/07/2003 |
| * |
| * \author NS |
| ************************************************************************** |
| */ |
| |
| #include <string.h> |
| #include "ih264d_bitstrm.h" |
| #include "ih264d_defs.h" |
| #include "ih264d_debug.h" |
| #include "ih264d_tables.h" |
| #include "ih264d_structs.h" |
| #include "ih264d_defs.h" |
| #include "ih264d_parse_cavlc.h" |
| #include "ih264d_mb_utils.h" |
| #include "ih264d_parse_slice.h" |
| #include "ih264d_process_intra_mb.h" |
| #include "ih264d_error_handler.h" |
| #include "ih264d_quant_scaling.h" |
| #include "ih264d_tables.h" |
| |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_itrans_recon_luma_dc \endif |
| * |
| * \brief |
| * This function does InvTransform, scaling and reconstruction of Luma DC. |
| * |
| * \return |
| * 0 on Success and Error code otherwise |
| ************************************************************************** |
| */ |
| void ih264d_itrans_recon_luma_dc(dec_struct_t *ps_dec, |
| WORD16* pi2_src, |
| WORD16* pi2_coeff_block, |
| const UWORD16 *pu2_weigh_mat) |
| { |
| WORD32 i; |
| WORD16 pi2_out[16]; |
| WORD32 pi4_tmp[16]; |
| WORD16 *pi2_out_ptr = &pi2_out[0]; |
| PROFILE_DISABLE_IQ_IT_RECON_RETURN() |
| ps_dec->pf_ihadamard_scaling_4x4(pi2_src, pi2_out, |
| ps_dec->pu2_quant_scale_y, pu2_weigh_mat, |
| ps_dec->u1_qp_y_div6, pi4_tmp); |
| for(i = 0; i < 4; i++) |
| { |
| pi2_coeff_block[0] = pi2_out_ptr[0]; |
| pi2_coeff_block[4 * 16] = pi2_out_ptr[4]; |
| pi2_coeff_block[8 * 16] = pi2_out_ptr[8]; |
| pi2_coeff_block[12 * 16] = pi2_out_ptr[12]; |
| |
| pi2_out_ptr++; /* Point to next column */ |
| pi2_coeff_block += 16; |
| } |
| } |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_read_intra_pred_modes \endif |
| * |
| * \brief |
| * Reads the intra pred mode related values of I4x4 MB from bitstream. |
| * |
| * This function will read the prev intra pred mode flags and |
| * stores it in pu1_prev_intra4x4_pred_mode_flag. If the u4_flag |
| * indicates that most probable mode is not intra pred mode, then |
| * the rem_intra4x4_pred_mode is read and stored in |
| * pu1_rem_intra4x4_pred_mode array. |
| * |
| * |
| * \return |
| * 0 on success and Error code otherwise |
| * |
| ************************************************************************** |
| */ |
| WORD32 ih264d_read_intra_pred_modes(dec_struct_t * ps_dec, |
| UWORD8 * pu1_prev_intra4x4_pred_mode_flag, |
| UWORD8 * pu1_rem_intra4x4_pred_mode, |
| UWORD32 u4_trans_form8x8) |
| { |
| WORD32 i4x4_luma_blk_idx = 0, i8x8_luma_blk_idx = 0; |
| |
| dec_bit_stream_t * ps_bitstrm = ps_dec->ps_bitstrm; |
| |
| if(!u4_trans_form8x8) |
| { |
| for(i4x4_luma_blk_idx = 0; i4x4_luma_blk_idx < 16; ++i4x4_luma_blk_idx) |
| { |
| UWORD32 u4_temp; |
| SWITCHOFFTRACE; |
| |
| GETBIT(u4_temp, ps_bitstrm->u4_ofst, ps_bitstrm->pu4_buffer); |
| *pu1_prev_intra4x4_pred_mode_flag = (UWORD8)u4_temp; |
| if(!(*pu1_prev_intra4x4_pred_mode_flag)) |
| { |
| GETBITS(u4_temp, ps_bitstrm->u4_ofst, ps_bitstrm->pu4_buffer, 3); |
| |
| *(pu1_rem_intra4x4_pred_mode) = (UWORD8)u4_temp; |
| } |
| |
| pu1_prev_intra4x4_pred_mode_flag++; |
| pu1_rem_intra4x4_pred_mode++; |
| } |
| } |
| else |
| { |
| /**********************************************************************/ |
| /* prev_intra4x4_pred_modes to be interpreted as */ |
| /* prev_intra8x8_pred_modes in case of transform 8x8 */ |
| /**********************************************************************/ |
| for(i8x8_luma_blk_idx = 0; i8x8_luma_blk_idx < 4; i8x8_luma_blk_idx++) |
| { |
| UWORD32 u4_temp; |
| GETBIT(u4_temp, ps_bitstrm->u4_ofst, ps_bitstrm->pu4_buffer); |
| *pu1_prev_intra4x4_pred_mode_flag = (UWORD8)u4_temp; |
| if(!(*pu1_prev_intra4x4_pred_mode_flag)) |
| { |
| GETBITS(u4_temp, ps_bitstrm->u4_ofst, ps_bitstrm->pu4_buffer, 3); |
| |
| (*pu1_rem_intra4x4_pred_mode) = (UWORD8)u4_temp; |
| } |
| pu1_prev_intra4x4_pred_mode_flag++; |
| pu1_rem_intra4x4_pred_mode++; |
| } |
| } |
| return (0); |
| } |
| WORD32 ih264d_unpack_coeff4x4_4x4blk(dec_struct_t * ps_dec, |
| WORD16 *pi2_out_coeff_data, |
| UWORD8 *pu1_inv_scan) |
| { |
| tu_sblk4x4_coeff_data_t *ps_tu_4x4 = (tu_sblk4x4_coeff_data_t *)ps_dec->pv_proc_tu_coeff_data; |
| UWORD16 u2_sig_coeff_map = ps_tu_4x4->u2_sig_coeff_map; |
| WORD32 idx = 0; |
| WORD16 *pi2_coeff_data = &ps_tu_4x4->ai2_level[0]; |
| WORD32 dc_only_flag = 0; |
| WORD32 num_coeff = 0; |
| |
| PROFILE_DISABLE_UNPACK_LUMA() |
| while(u2_sig_coeff_map) |
| { |
| idx = CLZ(u2_sig_coeff_map); |
| |
| idx = 31 - idx; |
| RESET_BIT(u2_sig_coeff_map,idx); |
| |
| idx = pu1_inv_scan[idx]; |
| pi2_out_coeff_data[idx] = *pi2_coeff_data++; |
| num_coeff++; |
| } |
| |
| if((num_coeff == 1) && (idx == 0)) |
| { |
| dc_only_flag = 1; |
| } |
| |
| { |
| WORD32 offset; |
| offset = (UWORD8 *)pi2_coeff_data - (UWORD8 *)ps_tu_4x4; |
| offset = ALIGN4(offset); |
| ps_dec->pv_proc_tu_coeff_data = (void *)((UWORD8 *)ps_dec->pv_proc_tu_coeff_data + offset); |
| } |
| |
| return dc_only_flag; |
| } |
| |
| UWORD32 ih264d_unpack_coeff4x4_8x8blk(dec_struct_t * ps_dec, |
| dec_mb_info_t * ps_cur_mb_info, |
| UWORD16 ui2_luma_csbp, |
| WORD16 *pi2_out_coeff_data) |
| { |
| UWORD8 *pu1_inv_scan; |
| UWORD8 u1_mb_field_decoding_flag = ps_cur_mb_info->u1_mb_field_decodingflag; |
| UWORD8 u1_field_coding_flag = ps_cur_mb_info->ps_curmb->u1_mb_fld; |
| UWORD32 u4_luma_dc_only_csbp = 0; |
| WORD32 dc_only_flag = 0; |
| |
| PROFILE_DISABLE_UNPACK_LUMA() |
| if(u1_field_coding_flag || u1_mb_field_decoding_flag) |
| { |
| pu1_inv_scan = (UWORD8 *)gau1_ih264d_inv_scan_fld; |
| } |
| else |
| { |
| pu1_inv_scan = (UWORD8 *)gau1_ih264d_inv_scan; |
| } |
| |
| // sub 0 |
| if(ui2_luma_csbp & 0x1) |
| { |
| memset(pi2_out_coeff_data,0,16*sizeof(WORD16)); |
| dc_only_flag = ih264d_unpack_coeff4x4_4x4blk(ps_dec, |
| pi2_out_coeff_data, |
| pu1_inv_scan); |
| |
| INSERT_BIT(u4_luma_dc_only_csbp, 0, dc_only_flag); |
| } |
| |
| pi2_out_coeff_data += 16; |
| // sub 1 |
| if(ui2_luma_csbp & 0x2) |
| { |
| memset(pi2_out_coeff_data,0,16*sizeof(WORD16)); |
| dc_only_flag = ih264d_unpack_coeff4x4_4x4blk(ps_dec, |
| pi2_out_coeff_data, |
| pu1_inv_scan); |
| INSERT_BIT(u4_luma_dc_only_csbp, 1, dc_only_flag); |
| } |
| |
| pi2_out_coeff_data += 16 + 32; |
| // sub 2 |
| if(ui2_luma_csbp & 0x10) |
| { |
| memset(pi2_out_coeff_data,0,16*sizeof(WORD16)); |
| dc_only_flag = ih264d_unpack_coeff4x4_4x4blk(ps_dec, |
| pi2_out_coeff_data, |
| pu1_inv_scan); |
| INSERT_BIT(u4_luma_dc_only_csbp, 4, dc_only_flag); |
| } |
| |
| pi2_out_coeff_data += 16; |
| // sub 3 |
| if(ui2_luma_csbp & 0x20) |
| { |
| memset(pi2_out_coeff_data,0,16*sizeof(WORD16)); |
| dc_only_flag = ih264d_unpack_coeff4x4_4x4blk(ps_dec, |
| pi2_out_coeff_data, |
| pu1_inv_scan); |
| INSERT_BIT(u4_luma_dc_only_csbp, 5, dc_only_flag); |
| } |
| return u4_luma_dc_only_csbp; |
| } |
| WORD32 ih264d_unpack_coeff8x8_8x8blk_cavlc(dec_struct_t * ps_dec, |
| dec_mb_info_t * ps_cur_mb_info, |
| UWORD16 ui2_luma_csbp, |
| WORD16 *pi2_out_coeff_data) |
| { |
| UWORD8 *pu1_inv_scan; |
| UWORD8 u1_mb_field_decoding_flag = ps_cur_mb_info->u1_mb_field_decodingflag; |
| UWORD8 u1_field_coding_flag = ps_cur_mb_info->ps_curmb->u1_mb_fld; |
| WORD32 dc_only_flag = 0; |
| |
| PROFILE_DISABLE_UNPACK_LUMA() |
| if(ui2_luma_csbp & 0x33) |
| { |
| memset(pi2_out_coeff_data,0,64*sizeof(WORD16)); |
| } |
| |
| if(!u1_mb_field_decoding_flag) |
| { |
| pu1_inv_scan = |
| (UWORD8*)gau1_ih264d_inv_scan_prog8x8_cavlc[0]; |
| } |
| else |
| { |
| pu1_inv_scan = |
| (UWORD8*)gau1_ih264d_inv_scan_int8x8_cavlc[0]; |
| } |
| // sub 0 |
| if(ui2_luma_csbp & 0x1) |
| { |
| dc_only_flag = ih264d_unpack_coeff4x4_4x4blk(ps_dec, |
| pi2_out_coeff_data, |
| pu1_inv_scan); |
| } |
| |
| if(!u1_mb_field_decoding_flag) |
| { |
| pu1_inv_scan = |
| (UWORD8*)gau1_ih264d_inv_scan_prog8x8_cavlc[1]; |
| } |
| else |
| { |
| pu1_inv_scan = |
| (UWORD8*)gau1_ih264d_inv_scan_int8x8_cavlc[1]; |
| } |
| // sub 1 |
| if(ui2_luma_csbp & 0x2) |
| { |
| dc_only_flag = 0; |
| ih264d_unpack_coeff4x4_4x4blk(ps_dec, |
| pi2_out_coeff_data, |
| pu1_inv_scan); |
| } |
| |
| if(!u1_mb_field_decoding_flag) |
| { |
| pu1_inv_scan = |
| (UWORD8*)gau1_ih264d_inv_scan_prog8x8_cavlc[2]; |
| } |
| else |
| { |
| pu1_inv_scan = |
| (UWORD8*)gau1_ih264d_inv_scan_int8x8_cavlc[2]; |
| } |
| // sub 2 |
| if(ui2_luma_csbp & 0x10) |
| { |
| dc_only_flag = 0; |
| ih264d_unpack_coeff4x4_4x4blk(ps_dec, |
| pi2_out_coeff_data, |
| pu1_inv_scan); |
| } |
| |
| if(!u1_mb_field_decoding_flag) |
| { |
| pu1_inv_scan = |
| (UWORD8*)gau1_ih264d_inv_scan_prog8x8_cavlc[3]; |
| } |
| else |
| { |
| pu1_inv_scan = |
| (UWORD8*)gau1_ih264d_inv_scan_int8x8_cavlc[3]; |
| } |
| // sub 3 |
| if(ui2_luma_csbp & 0x20) |
| { |
| dc_only_flag = 0; |
| ih264d_unpack_coeff4x4_4x4blk(ps_dec, |
| pi2_out_coeff_data, |
| pu1_inv_scan); |
| } |
| return dc_only_flag; |
| } |
| void ih264d_unpack_coeff4x4_8x8blk_chroma(dec_struct_t * ps_dec, |
| dec_mb_info_t * ps_cur_mb_info, |
| UWORD16 ui2_chroma_csbp, |
| WORD16 *pi2_out_coeff_data) |
| { |
| UWORD8 *pu1_inv_scan; |
| UWORD8 u1_mb_field_decoding_flag = ps_cur_mb_info->u1_mb_field_decodingflag; |
| UWORD8 u1_field_coding_flag = ps_cur_mb_info->ps_curmb->u1_mb_fld; |
| |
| PROFILE_DISABLE_UNPACK_CHROMA() |
| if(u1_field_coding_flag || u1_mb_field_decoding_flag) |
| { |
| pu1_inv_scan = (UWORD8 *)gau1_ih264d_inv_scan_fld; |
| } |
| else |
| { |
| pu1_inv_scan = (UWORD8 *)gau1_ih264d_inv_scan; |
| } |
| |
| if(ui2_chroma_csbp & 0x1) |
| { |
| memset(pi2_out_coeff_data,0,16*sizeof(WORD16)); |
| ih264d_unpack_coeff4x4_4x4blk(ps_dec, |
| pi2_out_coeff_data, |
| pu1_inv_scan); |
| } |
| pi2_out_coeff_data += 16; |
| if(ui2_chroma_csbp & 0x2) |
| { |
| memset(pi2_out_coeff_data,0,16*sizeof(WORD16)); |
| ih264d_unpack_coeff4x4_4x4blk(ps_dec, |
| pi2_out_coeff_data, |
| pu1_inv_scan); |
| } |
| |
| pi2_out_coeff_data += 16; |
| if(ui2_chroma_csbp & 0x4) |
| { |
| memset(pi2_out_coeff_data,0,16*sizeof(WORD16)); |
| ih264d_unpack_coeff4x4_4x4blk(ps_dec, |
| pi2_out_coeff_data, |
| pu1_inv_scan); |
| } |
| |
| pi2_out_coeff_data += 16; |
| if(ui2_chroma_csbp & 0x8) |
| { |
| memset(pi2_out_coeff_data,0,16*sizeof(WORD16)); |
| ih264d_unpack_coeff4x4_4x4blk(ps_dec, |
| pi2_out_coeff_data, |
| pu1_inv_scan); |
| } |
| } |
| UWORD32 ih264d_unpack_luma_coeff4x4_mb(dec_struct_t * ps_dec, |
| dec_mb_info_t * ps_cur_mb_info, |
| UWORD8 intra_flag) |
| { |
| UWORD8 u1_mb_type = ps_cur_mb_info->u1_mb_type; |
| UWORD16 ui2_luma_csbp = ps_cur_mb_info->u2_luma_csbp; |
| UWORD8 *pu1_inv_scan = ps_dec->pu1_inv_scan; |
| WORD16 *pi2_coeff_data = ps_dec->pi2_coeff_data; |
| |
| PROFILE_DISABLE_UNPACK_LUMA() |
| if(!ps_cur_mb_info->u1_tran_form8x8) |
| { |
| UWORD32 u4_luma_dc_only_csbp = 0; |
| UWORD32 u4_temp = 0; |
| WORD16* pi2_dc_val = NULL; |
| /* |
| * Reserve the pointer to dc vals. The dc vals will be copied |
| * after unpacking of ac vals since memset to 0 inside. |
| */ |
| if(intra_flag && (u1_mb_type != I_4x4_MB)) |
| { |
| if(CHECKBIT(ps_cur_mb_info->u1_yuv_dc_block_flag,0)) |
| { |
| pi2_dc_val = (WORD16 *)ps_dec->pv_proc_tu_coeff_data; |
| |
| ps_dec->pv_proc_tu_coeff_data = (void *)(pi2_dc_val + 16); |
| } |
| } |
| |
| if(ui2_luma_csbp) |
| { |
| pi2_coeff_data = ps_dec->pi2_coeff_data; |
| u4_temp = ih264d_unpack_coeff4x4_8x8blk(ps_dec, |
| ps_cur_mb_info, |
| ui2_luma_csbp, |
| pi2_coeff_data); |
| u4_luma_dc_only_csbp = u4_temp; |
| |
| pi2_coeff_data += 32; |
| |
| ui2_luma_csbp = ui2_luma_csbp >> 2; |
| u4_temp = ih264d_unpack_coeff4x4_8x8blk(ps_dec, |
| ps_cur_mb_info, |
| ui2_luma_csbp, |
| pi2_coeff_data); |
| |
| u4_luma_dc_only_csbp |= (u4_temp << 2); |
| |
| pi2_coeff_data += 32 + 64; |
| |
| ui2_luma_csbp = ui2_luma_csbp >> 6; |
| u4_temp = ih264d_unpack_coeff4x4_8x8blk(ps_dec, |
| ps_cur_mb_info, |
| ui2_luma_csbp, |
| pi2_coeff_data); |
| |
| u4_luma_dc_only_csbp |= (u4_temp << 8); |
| |
| pi2_coeff_data += 32; |
| |
| ui2_luma_csbp = ui2_luma_csbp >> 2; |
| u4_temp = ih264d_unpack_coeff4x4_8x8blk(ps_dec, |
| ps_cur_mb_info, |
| ui2_luma_csbp, |
| pi2_coeff_data); |
| u4_luma_dc_only_csbp |= (u4_temp << 10); |
| } |
| |
| if(pi2_dc_val != NULL) |
| { |
| WORD32 i; |
| pi2_coeff_data = ps_dec->pi2_coeff_data; |
| for(i = 0; i < 4; i++) |
| { |
| pi2_coeff_data[0] = pi2_dc_val[0]; |
| pi2_coeff_data[4 * 16] = pi2_dc_val[4]; |
| pi2_coeff_data[8 * 16] = pi2_dc_val[8]; |
| pi2_coeff_data[12 * 16] = pi2_dc_val[12]; |
| |
| pi2_dc_val++; /* Point to next column */ |
| pi2_coeff_data += 16; |
| } |
| u4_luma_dc_only_csbp = ps_cur_mb_info->u2_luma_csbp ^ 0xFFFF; |
| } |
| return u4_luma_dc_only_csbp; |
| } |
| else |
| { |
| UWORD32 u4_luma_dc_only_cbp = 0; |
| WORD32 dc_only_flag; |
| if(ui2_luma_csbp) |
| { |
| pi2_coeff_data = ps_dec->pi2_coeff_data; |
| dc_only_flag = ih264d_unpack_coeff8x8_8x8blk_cavlc(ps_dec, |
| ps_cur_mb_info, |
| ui2_luma_csbp, |
| pi2_coeff_data); |
| INSERT_BIT(u4_luma_dc_only_cbp, 0, dc_only_flag); |
| |
| pi2_coeff_data += 64; |
| |
| ui2_luma_csbp = ui2_luma_csbp >> 2; |
| dc_only_flag = ih264d_unpack_coeff8x8_8x8blk_cavlc(ps_dec, |
| ps_cur_mb_info, |
| ui2_luma_csbp, |
| pi2_coeff_data); |
| |
| INSERT_BIT(u4_luma_dc_only_cbp, 1, dc_only_flag); |
| |
| pi2_coeff_data += 64; |
| |
| ui2_luma_csbp = ui2_luma_csbp >> 6; |
| dc_only_flag = ih264d_unpack_coeff8x8_8x8blk_cavlc(ps_dec, |
| ps_cur_mb_info, |
| ui2_luma_csbp, |
| pi2_coeff_data); |
| |
| INSERT_BIT(u4_luma_dc_only_cbp, 2, dc_only_flag); |
| |
| pi2_coeff_data += 64; |
| ui2_luma_csbp = ui2_luma_csbp >> 2; |
| dc_only_flag = ih264d_unpack_coeff8x8_8x8blk_cavlc(ps_dec, |
| ps_cur_mb_info, |
| ui2_luma_csbp, |
| pi2_coeff_data); |
| INSERT_BIT(u4_luma_dc_only_cbp, 3, dc_only_flag); |
| } |
| return u4_luma_dc_only_cbp; |
| } |
| |
| } |
| |
| void ih264d_unpack_chroma_coeff4x4_mb(dec_struct_t * ps_dec, |
| dec_mb_info_t * ps_cur_mb_info) |
| { |
| UWORD8 u1_mb_type = ps_cur_mb_info->u1_mb_type; |
| UWORD16 ui2_chroma_csbp = ps_cur_mb_info->u2_chroma_csbp; |
| UWORD8 *pu1_inv_scan = ps_dec->pu1_inv_scan; |
| WORD16 *pi2_coeff_data = ps_dec->pi2_coeff_data; |
| WORD32 i; |
| WORD16 *pi2_dc_val_u = NULL; |
| WORD16 *pi2_dc_val_v = NULL; |
| |
| PROFILE_DISABLE_UNPACK_CHROMA() |
| if((ps_cur_mb_info->u1_cbp >> 4) == CBPC_ALLZERO) |
| return; |
| |
| /* |
| * Reserve the pointers to dc vals. The dc vals will be copied |
| * after unpacking of ac vals since memset to 0 inside. |
| */ |
| if(CHECKBIT(ps_cur_mb_info->u1_yuv_dc_block_flag,1)) |
| { |
| pi2_dc_val_u = (WORD16 *)ps_dec->pv_proc_tu_coeff_data; |
| |
| ps_dec->pv_proc_tu_coeff_data = (void *)(pi2_dc_val_u + 4); |
| } |
| if(CHECKBIT(ps_cur_mb_info->u1_yuv_dc_block_flag,2)) |
| { |
| pi2_dc_val_v = (WORD16 *)ps_dec->pv_proc_tu_coeff_data; |
| |
| ps_dec->pv_proc_tu_coeff_data = (void *)(pi2_dc_val_v + 4); |
| } |
| |
| if((ps_cur_mb_info->u1_cbp >> 4) == CBPC_NONZERO) |
| { |
| pi2_coeff_data = ps_dec->pi2_coeff_data; |
| ih264d_unpack_coeff4x4_8x8blk_chroma(ps_dec, |
| ps_cur_mb_info, |
| ui2_chroma_csbp, |
| pi2_coeff_data); |
| |
| pi2_coeff_data += 64; |
| ui2_chroma_csbp = ui2_chroma_csbp >> 4; |
| ih264d_unpack_coeff4x4_8x8blk_chroma(ps_dec, |
| ps_cur_mb_info, |
| ui2_chroma_csbp, |
| pi2_coeff_data); |
| |
| } |
| |
| pi2_coeff_data = ps_dec->pi2_coeff_data; |
| if(pi2_dc_val_u != NULL) |
| { |
| pi2_coeff_data[0] = *pi2_dc_val_u++; |
| pi2_coeff_data[1 * 16] = *pi2_dc_val_u++; |
| pi2_coeff_data[2 * 16] = *pi2_dc_val_u++; |
| pi2_coeff_data[3 * 16] = *pi2_dc_val_u++; |
| } |
| else |
| { |
| pi2_coeff_data[0] = 0; |
| pi2_coeff_data[1 * 16] = 0; |
| pi2_coeff_data[2 * 16] = 0; |
| pi2_coeff_data[3 * 16] = 0; |
| } |
| pi2_coeff_data += 64; |
| if(pi2_dc_val_v != NULL) |
| { |
| pi2_coeff_data[0] = *pi2_dc_val_v++; |
| pi2_coeff_data[1 * 16] = *pi2_dc_val_v++; |
| pi2_coeff_data[2 * 16] = *pi2_dc_val_v++; |
| pi2_coeff_data[3 * 16] = *pi2_dc_val_v++; |
| } |
| else |
| { |
| pi2_coeff_data[0] = 0; |
| pi2_coeff_data[1 * 16] = 0; |
| pi2_coeff_data[2 * 16] = 0; |
| pi2_coeff_data[3 * 16] = 0; |
| } |
| } |
| UWORD32 ih264d_unpack_luma_coeff8x8_mb(dec_struct_t * ps_dec, |
| dec_mb_info_t * ps_cur_mb_info) |
| { |
| WORD32 blk_8x8_cnt; |
| WORD16 *pi2_out_coeff_data = ps_dec->pi2_coeff_data; |
| UWORD8 u1_field_coding_flag = ps_cur_mb_info->ps_curmb->u1_mb_fld; |
| UWORD8 *pu1_inv_scan; |
| UWORD32 u4_luma_dc_only_cbp = 0; |
| |
| PROFILE_DISABLE_UNPACK_LUMA() |
| if(!u1_field_coding_flag) |
| { |
| /*******************************************************************/ |
| /* initializing inverse scan matrices */ |
| /*******************************************************************/ |
| pu1_inv_scan = (UWORD8 *)gau1_ih264d_inv_scan_prog8x8_cabac; |
| } |
| else |
| { |
| /*******************************************************************/ |
| /* initializing inverse scan matrices */ |
| /*******************************************************************/ |
| pu1_inv_scan = (UWORD8 *)gau1_ih264d_inv_scan_int8x8_cabac; |
| } |
| |
| for(blk_8x8_cnt = 0; blk_8x8_cnt < 4; blk_8x8_cnt++) |
| { |
| if(CHECKBIT(ps_cur_mb_info->u1_cbp, blk_8x8_cnt)) |
| { |
| tu_blk8x8_coeff_data_t *ps_tu_8x8 = (tu_blk8x8_coeff_data_t *)ps_dec->pv_proc_tu_coeff_data; |
| UWORD32 u4_sig_coeff_map; |
| WORD32 idx = 0; |
| WORD16 *pi2_coeff_data = &ps_tu_8x8->ai2_level[0]; |
| WORD32 num_coeff = 0; |
| |
| /* memset 64 coefficient to zero */ |
| memset(pi2_out_coeff_data,0,64*sizeof(WORD16)); |
| |
| u4_sig_coeff_map = ps_tu_8x8->au4_sig_coeff_map[1]; |
| |
| while(u4_sig_coeff_map) |
| { |
| idx = CLZ(u4_sig_coeff_map); |
| |
| idx = 31 - idx; |
| RESET_BIT(u4_sig_coeff_map,idx); |
| |
| idx = pu1_inv_scan[idx + 32]; |
| pi2_out_coeff_data[idx] = *pi2_coeff_data++; |
| num_coeff++; |
| } |
| |
| u4_sig_coeff_map = ps_tu_8x8->au4_sig_coeff_map[0]; |
| while(u4_sig_coeff_map) |
| { |
| idx = CLZ(u4_sig_coeff_map); |
| |
| idx = 31 - idx; |
| RESET_BIT(u4_sig_coeff_map,idx); |
| |
| idx = pu1_inv_scan[idx]; |
| pi2_out_coeff_data[idx] = *pi2_coeff_data++; |
| num_coeff++; |
| } |
| |
| if((num_coeff == 1) && (idx == 0)) |
| { |
| SET_BIT(u4_luma_dc_only_cbp,blk_8x8_cnt); |
| } |
| |
| |
| { |
| WORD32 offset; |
| offset = (UWORD8 *)pi2_coeff_data - (UWORD8 *)ps_tu_8x8; |
| offset = ALIGN4(offset); |
| ps_dec->pv_proc_tu_coeff_data = (void *)((UWORD8 *)ps_dec->pv_proc_tu_coeff_data + offset); |
| } |
| } |
| pi2_out_coeff_data += 64; |
| } |
| |
| return u4_luma_dc_only_cbp; |
| } |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_process_intra_mb \endif |
| * |
| * \brief |
| * This function decodes an I MB. Intraprediction is carried out followed |
| * by InvTramsform. Both IntraPrediction and Reconstrucion are carried out |
| * row buffer itself. |
| * |
| * |
| * \return |
| * 0 on Success and Error code otherwise |
| ************************************************************************** |
| */ |
| WORD32 ih264d_process_intra_mb(dec_struct_t * ps_dec, |
| dec_mb_info_t * ps_cur_mb_info, |
| UWORD8 u1_mb_num) |
| { |
| UWORD8 u1_mb_type = ps_cur_mb_info->u1_mb_type; |
| UWORD8 uc_temp = ps_cur_mb_info->u1_mb_ngbr_availablity; |
| UWORD8 u1_top_available = BOOLEAN(uc_temp & TOP_MB_AVAILABLE_MASK); |
| UWORD8 u1_left_available = BOOLEAN(uc_temp & LEFT_MB_AVAILABLE_MASK); |
| UWORD8 u1_use_top_right_mb = BOOLEAN(uc_temp & TOP_RIGHT_MB_AVAILABLE_MASK); |
| UWORD8 u1_use_top_left_mb = BOOLEAN(uc_temp & TOP_LEFT_MB_AVAILABLE_MASK); |
| UWORD8 uc_useTopMB = u1_top_available; |
| UWORD16 u2_use_left_mb = u1_left_available; |
| UWORD16 u2_use_left_mb_pack; |
| UWORD8 *pu1_luma_pred_buffer; |
| /* CHANGED CODE */ |
| UWORD8 *pu1_luma_rec_buffer; |
| UWORD8 *puc_top; |
| |
| mb_neigbour_params_t *ps_left_mb; |
| mb_neigbour_params_t *ps_top_mb; |
| mb_neigbour_params_t *ps_top_right_mb; |
| mb_neigbour_params_t *ps_curmb; |
| |
| UWORD16 u2_mbx = ps_cur_mb_info->u2_mbx; |
| UWORD32 ui_pred_width, ui_rec_width; |
| WORD16 *pi2_y_coeff; |
| UWORD8 u1_mbaff, u1_topmb, u1_mb_field_decoding_flag; |
| UWORD32 u4_num_pmbair; |
| UWORD16 ui2_luma_csbp = ps_cur_mb_info->u2_luma_csbp; |
| UWORD8 *pu1_yleft, *pu1_ytop_left; |
| /* Chroma variables*/ |
| UWORD8 *pu1_top_u; |
| UWORD8 *pu1_uleft; |
| UWORD8 *pu1_u_top_left; |
| /* CHANGED CODE */ |
| UWORD8 *pu1_mb_cb_rei1_buffer, *pu1_mb_cr_rei1_buffer; |
| UWORD32 u4_recwidth_cr; |
| /* 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; |
| |
| UWORD8 *pu1_prev_intra4x4_pred_mode_data = (UWORD8 *)ps_dec->pv_proc_tu_coeff_data; //Pointer to keep track of intra4x4_pred_mode data in pv_proc_tu_coeff_data buffer |
| u1_mbaff = ps_dec->ps_cur_slice->u1_mbaff_frame_flag; |
| u1_topmb = ps_cur_mb_info->u1_topmb; |
| u4_num_pmbair = (u1_mb_num >> u1_mbaff); |
| |
| |
| /*--------------------------------------------------------------------*/ |
| /* Find the current MB's mb params */ |
| /*--------------------------------------------------------------------*/ |
| u1_mb_field_decoding_flag = ps_cur_mb_info->u1_mb_field_decodingflag; |
| |
| ps_curmb = ps_cur_mb_info->ps_curmb; |
| ps_top_mb = ps_cur_mb_info->ps_top_mb; |
| ps_left_mb = ps_cur_mb_info->ps_left_mb; |
| ps_top_right_mb = ps_cur_mb_info->ps_top_right_mb; |
| |
| /*--------------------------------------------------------------------*/ |
| /* Check whether neighbouring MB is Inter MB and */ |
| /* constrained intra pred is 1. */ |
| /*--------------------------------------------------------------------*/ |
| u2_use_left_mb_pack = (u2_use_left_mb << 8) + u2_use_left_mb; |
| |
| if(ps_dec->ps_cur_pps->u1_constrained_intra_pred_flag) |
| { |
| UWORD8 u1_left = (UWORD8)u2_use_left_mb; |
| |
| uc_useTopMB = uc_useTopMB |
| && ((ps_top_mb->u1_mb_type != P_MB) |
| && (ps_top_mb->u1_mb_type != B_MB)); |
| u2_use_left_mb = u2_use_left_mb |
| && ((ps_left_mb->u1_mb_type != P_MB) |
| && (ps_left_mb->u1_mb_type != B_MB)); |
| |
| u2_use_left_mb_pack = (u2_use_left_mb << 8) + u2_use_left_mb; |
| if(u1_mbaff) |
| { |
| if(u1_mb_field_decoding_flag ^ ps_left_mb->u1_mb_fld) |
| { |
| u1_left = u1_left |
| && (((ps_left_mb + 1)->u1_mb_type != P_MB) |
| && ((ps_left_mb + 1)->u1_mb_type |
| != B_MB)); |
| u2_use_left_mb = u2_use_left_mb && u1_left; |
| if(u1_mb_field_decoding_flag) |
| u2_use_left_mb_pack = (u1_left << 8) |
| + (u2_use_left_mb_pack & 0xff); |
| else |
| u2_use_left_mb_pack = (u2_use_left_mb << 8) |
| + (u2_use_left_mb); |
| } |
| } |
| u1_use_top_right_mb = |
| u1_use_top_right_mb |
| && ((ps_top_right_mb->u1_mb_type != P_MB) |
| && (ps_top_right_mb->u1_mb_type |
| != B_MB)); |
| |
| u1_use_top_left_mb = |
| u1_use_top_left_mb |
| && ((ps_cur_mb_info->u1_topleft_mbtype != P_MB) |
| && (ps_cur_mb_info->u1_topleft_mbtype |
| != B_MB)); |
| } |
| |
| /*********************Common pointer calculations *************************/ |
| /* CHANGED CODE */ |
| pu1_luma_pred_buffer = ps_dec->pu1_y; |
| pu1_luma_rec_buffer = ps_frame_buf->pu1_dest_y + (u4_num_pmbair << 4); |
| pu1_mb_cb_rei1_buffer = ps_frame_buf->pu1_dest_u |
| + (u4_num_pmbair << 3) * YUV420SP_FACTOR; |
| pu1_mb_cr_rei1_buffer = ps_frame_buf->pu1_dest_v + (u4_num_pmbair << 3); |
| ui_pred_width = MB_SIZE; |
| 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; |
| /************* Current and top luma pointer *****************/ |
| |
| if(u1_mbaff) |
| { |
| if(u1_topmb == 0) |
| { |
| pu1_luma_rec_buffer += ( |
| u1_mb_field_decoding_flag ? |
| (ui_rec_width >> 1) : |
| (ui_rec_width << 4)); |
| pu1_mb_cb_rei1_buffer += ( |
| u1_mb_field_decoding_flag ? |
| (u4_recwidth_cr >> 1) : |
| (u4_recwidth_cr << 3)); |
| pu1_mb_cr_rei1_buffer += ( |
| u1_mb_field_decoding_flag ? |
| (u4_recwidth_cr >> 1) : |
| (u4_recwidth_cr << 3)); |
| } |
| } |
| |
| /* CHANGED CODE */ |
| if(ps_dec->u4_use_intrapred_line_copy == 1) |
| { |
| puc_top = ps_dec->pu1_prev_y_intra_pred_line + (ps_cur_mb_info->u2_mbx << 4); |
| pu1_top_u = ps_dec->pu1_prev_u_intra_pred_line |
| + (ps_cur_mb_info->u2_mbx << 3) * YUV420SP_FACTOR; |
| } |
| else |
| { |
| puc_top = pu1_luma_rec_buffer - ui_rec_width; |
| pu1_top_u = pu1_mb_cb_rei1_buffer - u4_recwidth_cr; |
| } |
| /* CHANGED CODE */ |
| |
| /************* Left pointer *****************/ |
| pu1_yleft = pu1_luma_rec_buffer - 1; |
| pu1_uleft = pu1_mb_cb_rei1_buffer - 1 * YUV420SP_FACTOR; |
| |
| /**************Top Left pointer calculation**********/ |
| pu1_ytop_left = puc_top - 1; |
| pu1_u_top_left = pu1_top_u - 1 * YUV420SP_FACTOR; |
| |
| /* CHANGED CODE */ |
| PROFILE_DISABLE_INTRA_PRED() |
| { |
| pu1_prev_intra4x4_pred_mode_data = (UWORD8 *)ps_dec->pv_proc_tu_coeff_data; |
| if(u1_mb_type == I_4x4_MB && ps_cur_mb_info->u1_tran_form8x8 == 0) |
| { |
| ps_dec->pv_proc_tu_coeff_data = (void *)((UWORD8 *)ps_dec->pv_proc_tu_coeff_data + 32); |
| |
| } |
| else if (u1_mb_type == I_4x4_MB && ps_cur_mb_info->u1_tran_form8x8 == 1) |
| { |
| ps_dec->pv_proc_tu_coeff_data = (void *)((UWORD8 *)ps_dec->pv_proc_tu_coeff_data + 8); |
| } |
| } |
| if(!ps_cur_mb_info->u1_tran_form8x8) |
| { |
| u4_luma_dc_only_csbp = ih264d_unpack_luma_coeff4x4_mb(ps_dec, |
| ps_cur_mb_info, |
| 1); |
| } |
| 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, |
| 1); |
| } |
| 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; |
| |
| if(u1_mb_type != I_4x4_MB) |
| { |
| UWORD8 u1_intrapred_mode = MB_TYPE_TO_INTRA_16x16_MODE(u1_mb_type); |
| /*--------------------------------------------------------------------*/ |
| /* 16x16 IntraPrediction */ |
| /*--------------------------------------------------------------------*/ |
| { |
| UWORD8 u1_packed_modes = (u1_top_available << 1) |
| + u1_left_available; |
| UWORD8 u1_err_code = |
| (u1_intrapred_mode & 1) ? |
| u1_intrapred_mode : |
| (u1_intrapred_mode ^ 2); |
| |
| if((u1_err_code & u1_packed_modes) ^ u1_err_code) |
| { |
| u1_intrapred_mode = 0; |
| ps_dec->i4_error_code = ERROR_INTRAPRED; |
| } |
| } |
| { |
| /* Align the size to multiple of 8, so that SIMD functions |
| can read 64 bits at a time. Only 33 bytes are actaully used */ |
| UWORD8 au1_ngbr_pels[40]; |
| /* Get neighbour pixels */ |
| /* left pels */ |
| if(u2_use_left_mb) |
| { |
| WORD32 i; |
| for(i = 0; i < 16; i++) |
| au1_ngbr_pels[16 - 1 - i] = pu1_yleft[i * ui_rec_width]; |
| } |
| else |
| { |
| memset(au1_ngbr_pels, 0, 16); |
| } |
| |
| /* top left pels */ |
| au1_ngbr_pels[16] = *pu1_ytop_left; |
| |
| /* top pels */ |
| if(uc_useTopMB) |
| { |
| memcpy(au1_ngbr_pels + 16 + 1, puc_top, 16); |
| } |
| else |
| { |
| memset(au1_ngbr_pels + 16 + 1, 0, 16); |
| } |
| PROFILE_DISABLE_INTRA_PRED() |
| ps_dec->apf_intra_pred_luma_16x16[u1_intrapred_mode]( |
| au1_ngbr_pels, pu1_luma_rec_buffer, 1, ui_rec_width, |
| ((uc_useTopMB << 2) | u2_use_left_mb)); |
| } |
| { |
| UWORD32 i; |
| WORD16 ai2_tmp[16]; |
| for(i = 0; i < 16; i++) |
| { |
| WORD16 *pi2_level = pi2_y_coeff + (i << 4); |
| UWORD8 *pu1_pred_sblk = pu1_luma_rec_buffer |
| + ((i & 0x3) * BLK_SIZE) |
| + (i >> 2) * (ui_rec_width << 2); |
| PROFILE_DISABLE_IQ_IT_RECON() |
| { |
| if(CHECKBIT(ps_cur_mb_info->u2_luma_csbp, i)) |
| { |
| 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[0], |
| ps_cur_mb_info->u1_qp_div6, ai2_tmp, 1, |
| pi2_level); |
| } |
| else if((CHECKBIT(u4_luma_dc_only_csbp, i)) && pi2_level[0] != 0) |
| { |
| 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[0], |
| ps_cur_mb_info->u1_qp_div6, ai2_tmp, 1, |
| pi2_level); |
| } |
| } |
| } |
| } |
| } |
| else if(!ps_cur_mb_info->u1_tran_form8x8) |
| { |
| UWORD8 u1_is_left_sub_block, u1_is_top_sub_block = uc_useTopMB; |
| UWORD8 u1_sub_blk_x, u1_sub_blk_y, u1_sub_mb_num; |
| WORD8 i1_top_pred_mode; |
| WORD8 i1_left_pred_mode; |
| UWORD8 *pu1_top, *pu1_left, *pu1_top_left, *pu1_top_right; |
| WORD8 *pi1_cur_pred_mode, *pi1_left_pred_mode, *pc_topPredMode; |
| UWORD16 ui2_left_pred_buf_width = 0xffff; |
| WORD8 i1_intra_pred; |
| UWORD8 *pu1_prev_intra4x4_pred_mode_flag = pu1_prev_intra4x4_pred_mode_data; |
| UWORD8 *pu1_rem_intra4x4_pred_mode = pu1_prev_intra4x4_pred_mode_data + 16; |
| WORD16 *pi2_y_coeff1; |
| UWORD8 u1_cur_sub_block; |
| UWORD16 ui2_top_rt_mask; |
| |
| /*--------------------------------------------------------------------*/ |
| /* 4x4 IntraPrediction */ |
| /*--------------------------------------------------------------------*/ |
| /* Calculation of Top Right subblock mask */ |
| /* */ |
| /* (a) Set it to default mask */ |
| /* [It has 0 for sublocks which will never have top-right sub block] */ |
| /* */ |
| /* (b) If top MB is not available */ |
| /* Clear the bits of the first row sub blocks */ |
| /* */ |
| /* (c) Set/Clear bit for top-right sublock of MB */ |
| /* [5 sub-block in decoding order] based on TOP RIGHT MB availablity */ |
| /*--------------------------------------------------------------------*/ |
| |
| pu1_top = puc_top; |
| |
| ui2_top_rt_mask = (u1_use_top_right_mb << 3) | (0x5750); |
| if(uc_useTopMB) |
| ui2_top_rt_mask |= 0x7; |
| |
| /*Top Related initialisations*/ |
| |
| |
| pi1_cur_pred_mode = ps_cur_mb_info->ps_curmb->pi1_intrapredmodes; |
| pc_topPredMode = ps_cur_mb_info->ps_top_mb->pi1_intrapredmodes; |
| /*-------------------------------------- |
| if(u1_mbaff) |
| { |
| |
| pi1_cur_pred_mode += (u2_mbx << 2); |
| pc_topPredMode = pi1_cur_pred_mode + ps_cur_mb_info->i1_offset; |
| pi1_cur_pred_mode += (u1_topmb) ? 0: 4; |
| }*/ |
| |
| if(u1_top_available) |
| { |
| if(ps_top_mb->u1_mb_type == I_4x4_MB) |
| *(WORD32*)pi1_cur_pred_mode = *(WORD32*)pc_topPredMode; |
| else |
| *(WORD32*)pi1_cur_pred_mode = |
| (uc_useTopMB) ? DC_DC_DC_DC : NOT_VALID; |
| } |
| else |
| *(WORD32*)pi1_cur_pred_mode = NOT_VALID; |
| /* CHANGED CODE */ |
| |
| /* CHANGED CODE */ |
| |
| /*Left Related initialisations*/ |
| pi1_left_pred_mode = ps_dec->pi1_left_pred_mode; |
| if(!u1_mbaff) |
| { |
| |
| if(u1_left_available) |
| { |
| |
| if(ps_left_mb->u1_mb_type != I_4x4_MB) |
| *(WORD32*)pi1_left_pred_mode = |
| (u2_use_left_mb_pack) ? |
| DC_DC_DC_DC : |
| NOT_VALID; |
| |
| } |
| else |
| { |
| |
| *(WORD32*)pi1_left_pred_mode = NOT_VALID; |
| } |
| |
| } |
| else |
| { |
| UWORD8 u1_curMbfld = ps_cur_mb_info->u1_mb_field_decodingflag; |
| UWORD8 u1_leftMbfld = ps_left_mb->u1_mb_fld; |
| |
| if(u1_curMbfld ^ u1_leftMbfld) |
| { |
| |
| if(u1_topmb |
| | ((u1_topmb == 0) |
| && ((ps_curmb - 1)->u1_mb_type |
| != I_4x4_MB))) |
| { |
| if(u1_left_available) |
| { |
| if(ps_left_mb->u1_mb_type != I_4x4_MB) |
| { |
| if(CHECKBIT(u2_use_left_mb_pack,0) == 0) |
| *(WORD32*)pi1_left_pred_mode = NOT_VALID; |
| else |
| *(WORD32*)pi1_left_pred_mode = DC_DC_DC_DC; |
| } |
| } |
| else |
| *(WORD32*)pi1_left_pred_mode = NOT_VALID; |
| |
| if(u1_curMbfld) |
| { |
| if(u1_left_available) |
| { |
| if((ps_left_mb + 1)->u1_mb_type != I_4x4_MB) |
| { |
| if(u2_use_left_mb_pack >> 8) |
| *(WORD32*)(pi1_left_pred_mode + 4) = |
| DC_DC_DC_DC; |
| else |
| *(WORD32*)(pi1_left_pred_mode + 4) = |
| NOT_VALID; |
| } |
| } |
| else |
| *(WORD32*)(pi1_left_pred_mode + 4) = NOT_VALID; |
| pi1_left_pred_mode[1] = pi1_left_pred_mode[2]; |
| pi1_left_pred_mode[2] = pi1_left_pred_mode[4]; |
| pi1_left_pred_mode[3] = pi1_left_pred_mode[6]; |
| *(WORD32*)(pi1_left_pred_mode + 4) = |
| *(WORD32*)pi1_left_pred_mode; |
| } |
| else |
| { |
| |
| pi1_left_pred_mode[7] = pi1_left_pred_mode[3]; |
| pi1_left_pred_mode[6] = pi1_left_pred_mode[3]; |
| pi1_left_pred_mode[5] = pi1_left_pred_mode[2]; |
| pi1_left_pred_mode[4] = pi1_left_pred_mode[2]; |
| pi1_left_pred_mode[3] = pi1_left_pred_mode[1]; |
| pi1_left_pred_mode[2] = pi1_left_pred_mode[1]; |
| pi1_left_pred_mode[1] = pi1_left_pred_mode[0]; |
| } |
| } |
| pi1_left_pred_mode += (u1_topmb) ? 0 : 4; |
| } |
| else |
| { |
| |
| pi1_left_pred_mode += (u1_topmb) ? 0 : 4; |
| if(u1_left_available) |
| { |
| |
| if(ps_left_mb->u1_mb_type != I_4x4_MB) |
| *(WORD32*)pi1_left_pred_mode = |
| (u2_use_left_mb_pack) ? |
| DC_DC_DC_DC : |
| NOT_VALID; |
| } |
| else |
| *(WORD32*)pi1_left_pred_mode = NOT_VALID; |
| } |
| } |
| /* One time pointer initialisations*/ |
| pi2_y_coeff1 = pi2_y_coeff; |
| pu1_top_left = pu1_ytop_left; |
| |
| /* Scan the sub-blocks in Raster Scan Order */ |
| for(u1_sub_mb_num = 0; u1_sub_mb_num < 16; u1_sub_mb_num++) |
| { |
| /* Align the size to multiple of 8, so that SIMD functions |
| can read 64 bits at a time. Only 13 bytes are actaully used */ |
| UWORD8 au1_ngbr_pels[16]; |
| |
| u1_sub_blk_x = u1_sub_mb_num & 0x3; |
| u1_sub_blk_y = u1_sub_mb_num >> 2; |
| i1_top_pred_mode = pi1_cur_pred_mode[u1_sub_blk_x]; |
| i1_left_pred_mode = pi1_left_pred_mode[u1_sub_blk_y]; |
| u1_use_top_right_mb = (!!CHECKBIT(ui2_top_rt_mask, u1_sub_mb_num)); |
| |
| /*********** left subblock availability**********/ |
| if(u1_sub_blk_x) |
| u1_is_left_sub_block = 1; |
| else |
| u1_is_left_sub_block = |
| (u1_sub_blk_y < 2) ? |
| (CHECKBIT(u2_use_left_mb_pack, |
| 0)) : |
| (u2_use_left_mb_pack >> 8); |
| |
| /* CHANGED CODE */ |
| if(u1_sub_blk_y) |
| u1_is_top_sub_block = 1; |
| |
| /* CHANGED CODE */ |
| /***************** Top *********************/ |
| if(ps_dec->u4_use_intrapred_line_copy == 1) |
| { |
| |
| if(u1_sub_blk_y) |
| pu1_top = pu1_luma_rec_buffer - ui_rec_width; |
| else |
| pu1_top = puc_top + (u1_sub_blk_x << 2); |
| } |
| else |
| { |
| pu1_top = pu1_luma_rec_buffer - ui_rec_width; |
| } |
| /***************** Top Right *********************/ |
| pu1_top_right = pu1_top + 4; |
| /***************** Top Left *********************/ |
| pu1_top_left = pu1_top - 1; |
| /***************** Left *********************/ |
| pu1_left = pu1_luma_rec_buffer - 1; |
| /* CHANGED CODE */ |
| |
| /*---------------------------------------------------------------*/ |
| /* Calculation of Intra prediction mode */ |
| /*---------------------------------------------------------------*/ |
| i1_intra_pred = ((i1_left_pred_mode < 0) | (i1_top_pred_mode < 0)) ? |
| DC : MIN(i1_left_pred_mode, i1_top_pred_mode); |
| { |
| UWORD8 u1_packed_modes = (u1_is_top_sub_block << 1) |
| + u1_is_left_sub_block; |
| UWORD8 *pu1_intra_err_codes = |
| (UWORD8 *)gau1_ih264d_intra_pred_err_code; |
| UWORD8 uc_b2b0 = ((u1_sub_mb_num & 4) >> 1) | (u1_sub_mb_num & 1); |
| UWORD8 uc_b3b1 = ((u1_sub_mb_num & 8) >> 2) |
| | ((u1_sub_mb_num & 2) >> 1); |
| |
| u1_cur_sub_block = (uc_b3b1 << 2) + uc_b2b0; |
| PROFILE_DISABLE_INTRA_PRED() |
| if(!pu1_prev_intra4x4_pred_mode_flag[u1_cur_sub_block]) |
| { |
| i1_intra_pred = |
| pu1_rem_intra4x4_pred_mode[u1_cur_sub_block] |
| + (pu1_rem_intra4x4_pred_mode[u1_cur_sub_block] |
| >= i1_intra_pred); |
| } |
| i1_intra_pred = CLIP3(0, 8, i1_intra_pred); |
| { |
| UWORD8 u1_err_code = pu1_intra_err_codes[i1_intra_pred]; |
| |
| if((u1_err_code & u1_packed_modes) ^ u1_err_code) |
| { |
| i1_intra_pred = 0; |
| ps_dec->i4_error_code = ERROR_INTRAPRED; |
| } |
| |
| } |
| } |
| { |
| /* Get neighbour pixels */ |
| /* left pels */ |
| if(u1_is_left_sub_block) |
| { |
| WORD32 i; |
| for(i = 0; i < 4; i++) |
| au1_ngbr_pels[4 - 1 - i] = pu1_left[i * ui_rec_width]; |
| } |
| else |
| { |
| memset(au1_ngbr_pels, 0, 4); |
| } |
| |
| /* top left pels */ |
| au1_ngbr_pels[4] = *pu1_top_left; |
| |
| /* top pels */ |
| if(u1_is_top_sub_block) |
| { |
| memcpy(au1_ngbr_pels + 4 + 1, pu1_top, 4); |
| } |
| else |
| { |
| memset(au1_ngbr_pels + 4 + 1, 0, 4); |
| } |
| |
| /* top right pels */ |
| if(u1_use_top_right_mb) |
| { |
| memcpy(au1_ngbr_pels + 4 * 2 + 1, pu1_top_right, 4); |
| } |
| else if(u1_is_top_sub_block) |
| { |
| memset(au1_ngbr_pels + 4 * 2 + 1, au1_ngbr_pels[4 * 2], 4); |
| } |
| } |
| PROFILE_DISABLE_INTRA_PRED() |
| ps_dec->apf_intra_pred_luma_4x4[i1_intra_pred]( |
| au1_ngbr_pels, pu1_luma_rec_buffer, 1, |
| ui_rec_width, |
| ((u1_is_top_sub_block << 2) | u1_is_left_sub_block)); |
| |
| /* CHANGED CODE */ |
| if(CHECKBIT(ui2_luma_csbp, u1_sub_mb_num)) |
| { |
| WORD16 ai2_tmp[16]; |
| PROFILE_DISABLE_IQ_IT_RECON() |
| { |
| if(CHECKBIT(u4_luma_dc_only_csbp, u1_sub_mb_num)) |
| { |
| ps_dec->pf_iquant_itrans_recon_luma_4x4_dc( |
| pi2_y_coeff1, |
| pu1_luma_rec_buffer, |
| pu1_luma_rec_buffer, |
| 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[0], |
| ps_cur_mb_info->u1_qp_div6, ai2_tmp, 0, |
| NULL); |
| } |
| else |
| { |
| ps_dec->pf_iquant_itrans_recon_luma_4x4( |
| pi2_y_coeff1, |
| pu1_luma_rec_buffer, |
| pu1_luma_rec_buffer, |
| 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[0], |
| ps_cur_mb_info->u1_qp_div6, ai2_tmp, 0, |
| NULL); |
| } |
| } |
| |
| } |
| |
| /*---------------------------------------------------------------*/ |
| /* Update sub block number */ |
| /*---------------------------------------------------------------*/ |
| pi2_y_coeff1 += 16; |
| pu1_luma_rec_buffer += |
| (u1_sub_blk_x == 3) ? (ui_rec_width << 2) - 12 : 4; |
| pu1_luma_pred_buffer += |
| (u1_sub_blk_x == 3) ? (ui_pred_width << 2) - 12 : 4; |
| /* CHANGED CODE */ |
| pi1_cur_pred_mode[u1_sub_blk_x] = i1_intra_pred; |
| pi1_left_pred_mode[u1_sub_blk_y] = i1_intra_pred; |
| } |
| } |
| else if((u1_mb_type == I_4x4_MB) && (ps_cur_mb_info->u1_tran_form8x8 == 1)) |
| { |
| UWORD8 u1_is_left_sub_block, u1_is_top_sub_block = uc_useTopMB; |
| UWORD8 u1_sub_blk_x, u1_sub_blk_y, u1_sub_mb_num; |
| WORD8 i1_top_pred_mode; |
| WORD8 i1_left_pred_mode; |
| UWORD8 *pu1_top, *pu1_left, *pu1_top_left; |
| WORD8 *pi1_cur_pred_mode, *pi1_left_pred_mode, *pc_topPredMode; |
| UWORD16 ui2_left_pred_buf_width = 0xffff; |
| WORD8 i1_intra_pred; |
| UWORD8 *pu1_prev_intra4x4_pred_mode_flag = pu1_prev_intra4x4_pred_mode_data; |
| UWORD8 *pu1_rem_intra4x4_pred_mode = pu1_prev_intra4x4_pred_mode_data + 4; |
| WORD16 *pi2_y_coeff1; |
| UWORD16 ui2_top_rt_mask; |
| UWORD32 u4_4x4_left_offset = 0; |
| |
| /*--------------------------------------------------------------------*/ |
| /* 8x8 IntraPrediction */ |
| /*--------------------------------------------------------------------*/ |
| /* Calculation of Top Right subblock mask */ |
| /* */ |
| /* (a) Set it to default mask */ |
| /* [It has 0 for sublocks which will never have top-right sub block] */ |
| /* */ |
| /* (b) If top MB is not available */ |
| /* Clear the bits of the first row sub blocks */ |
| /* */ |
| /* (c) Set/Clear bit for top-right sublock of MB */ |
| /* [5 sub-block in decoding order] based on TOP RIGHT MB availablity */ |
| /* */ |
| /* ui2_top_rt_mask: marks availibility of top right(neighbour) */ |
| /* in the 8x8 Block ordering */ |
| /* */ |
| /* tr0 tr1 */ |
| /* 0 1 tr3 */ |
| /* 2 3 */ |
| /* */ |
| /* Top rights for 0 is in top MB */ |
| /* top right of 1 will be in top right MB */ |
| /* top right of 3 in right MB and hence not available */ |
| /* This corresponds to ui2_top_rt_mask having default value 0x4 */ |
| /*--------------------------------------------------------------------*/ |
| |
| ui2_top_rt_mask = (u1_use_top_right_mb << 1) | (0x4); |
| |
| if(uc_useTopMB) |
| { |
| ui2_top_rt_mask |= 0x1; |
| } |
| |
| /* Top Related initialisations */ |
| pi1_cur_pred_mode = ps_cur_mb_info->ps_curmb->pi1_intrapredmodes; |
| pc_topPredMode = ps_cur_mb_info->ps_top_mb->pi1_intrapredmodes; |
| /* |
| if(u1_mbaff) |
| { |
| pi1_cur_pred_mode += (u2_mbx << 2); |
| pc_topPredMode = pi1_cur_pred_mode + ps_cur_mb_info->i1_offset; |
| pi1_cur_pred_mode += (u1_topmb) ? 0: 4; |
| } |
| */ |
| if(u1_top_available) |
| { |
| if(ps_top_mb->u1_mb_type == I_4x4_MB) |
| { |
| *(WORD32*)pi1_cur_pred_mode = *(WORD32*)pc_topPredMode; |
| } |
| else |
| { |
| *(WORD32*)pi1_cur_pred_mode = |
| (uc_useTopMB) ? DC_DC_DC_DC : NOT_VALID; |
| } |
| } |
| else |
| { |
| *(WORD32*)pi1_cur_pred_mode = NOT_VALID; |
| } |
| |
| pu1_top = puc_top - 8; |
| |
| /*Left Related initialisations*/ |
| pi1_left_pred_mode = ps_dec->pi1_left_pred_mode; |
| |
| if(!u1_mbaff) |
| { |
| if(u1_left_available) |
| { |
| if(ps_left_mb->u1_mb_type != I_4x4_MB) |
| { |
| *(WORD32*)pi1_left_pred_mode = |
| (u2_use_left_mb_pack) ? |
| DC_DC_DC_DC : |
| NOT_VALID; |
| } |
| } |
| else |
| { |
| *(WORD32*)pi1_left_pred_mode = NOT_VALID; |
| } |
| } |
| else |
| { |
| UWORD8 u1_curMbfld = ps_cur_mb_info->u1_mb_field_decodingflag; |
| |
| UWORD8 u1_leftMbfld = ps_left_mb->u1_mb_fld; |
| |
| if((!u1_curMbfld) && (u1_leftMbfld)) |
| { |
| u4_4x4_left_offset = 1; |
| } |
| |
| if(u1_curMbfld ^ u1_leftMbfld) |
| { |
| |
| if(u1_topmb |
| | ((u1_topmb == 0) |
| && ((ps_curmb - 1)->u1_mb_type |
| != I_4x4_MB))) |
| |
| { |
| if(u1_left_available) |
| { |
| if(ps_left_mb->u1_mb_type != I_4x4_MB) |
| { |
| if(CHECKBIT(u2_use_left_mb_pack,0) == 0) |
| { |
| *(WORD32*)pi1_left_pred_mode = NOT_VALID; |
| } |
| else |
| { |
| *(WORD32*)pi1_left_pred_mode = DC_DC_DC_DC; |
| } |
| } |
| } |
| else |
| { |
| *(WORD32*)pi1_left_pred_mode = NOT_VALID; |
| } |
| |
| if(u1_curMbfld) |
| { |
| if(u1_left_available) |
| { |
| if((ps_left_mb + 1)->u1_mb_type != I_4x4_MB) |
| { |
| if(u2_use_left_mb_pack >> 8) |
| { |
| *(WORD32*)(pi1_left_pred_mode + 4) = |
| DC_DC_DC_DC; |
| } |
| else |
| { |
| *(WORD32*)(pi1_left_pred_mode + 4) = |
| NOT_VALID; |
| } |
| } |
| } |
| else |
| { |
| *(WORD32*)(pi1_left_pred_mode + 4) = NOT_VALID; |
| } |
| |
| pi1_left_pred_mode[1] = pi1_left_pred_mode[2]; |
| pi1_left_pred_mode[2] = pi1_left_pred_mode[4]; |
| pi1_left_pred_mode[3] = pi1_left_pred_mode[6]; |
| *(WORD32*)(pi1_left_pred_mode + 4) = |
| *(WORD32*)pi1_left_pred_mode; |
| } |
| else |
| { |
| pi1_left_pred_mode[7] = pi1_left_pred_mode[3]; |
| pi1_left_pred_mode[6] = pi1_left_pred_mode[3]; |
| pi1_left_pred_mode[5] = pi1_left_pred_mode[2]; |
| pi1_left_pred_mode[4] = pi1_left_pred_mode[2]; |
| pi1_left_pred_mode[3] = pi1_left_pred_mode[1]; |
| pi1_left_pred_mode[2] = pi1_left_pred_mode[1]; |
| pi1_left_pred_mode[1] = pi1_left_pred_mode[0]; |
| } |
| } |
| pi1_left_pred_mode += (u1_topmb) ? 0 : 4; |
| } |
| else |
| { |
| pi1_left_pred_mode += (u1_topmb) ? 0 : 4; |
| |
| if(u1_left_available) |
| { |
| if(ps_left_mb->u1_mb_type != I_4x4_MB) |
| { |
| *(WORD32*)pi1_left_pred_mode = |
| (u2_use_left_mb_pack) ? |
| DC_DC_DC_DC : |
| NOT_VALID; |
| } |
| } |
| else |
| { |
| *(WORD32*)pi1_left_pred_mode = NOT_VALID; |
| } |
| } |
| } |
| |
| /* One time pointer initialisations*/ |
| pi2_y_coeff1 = pi2_y_coeff; |
| |
| if(u1_use_top_left_mb) |
| { |
| pu1_top_left = pu1_ytop_left; |
| } |
| else |
| { |
| pu1_top_left = NULL; |
| } |
| |
| /* Scan the sub-blocks in Raster Scan Order */ |
| for(u1_sub_mb_num = 0; u1_sub_mb_num < 4; u1_sub_mb_num++) |
| { |
| u1_sub_blk_x = (u1_sub_mb_num & 0x1); |
| u1_sub_blk_y = (u1_sub_mb_num >> 1); |
| i1_top_pred_mode = pi1_cur_pred_mode[u1_sub_blk_x << 1]; |
| i1_left_pred_mode = pi1_left_pred_mode[u1_sub_blk_y << 1]; |
| |
| if(2 == u1_sub_mb_num) |
| { |
| i1_left_pred_mode = pi1_left_pred_mode[(u1_sub_blk_y << 1) |
| + u4_4x4_left_offset]; |
| } |
| |
| u1_use_top_right_mb = (!!CHECKBIT(ui2_top_rt_mask, u1_sub_mb_num)); |
| |
| /*********** left subblock availability**********/ |
| if(u1_sub_blk_x) |
| { |
| u1_is_left_sub_block = 1; |
| } |
| else |
| { |
| u1_is_left_sub_block = |
| (u1_sub_blk_y < 1) ? |
| (CHECKBIT(u2_use_left_mb_pack, |
| 0)) : |
| (u2_use_left_mb_pack >> 8); |
| } |
| |
| /***************** Top *********************/ |
| if(u1_sub_blk_y) |
| { |
| u1_is_top_sub_block = 1; |
| // sushant |
| pu1_top = /*pu1_luma_pred_buffer*/pu1_luma_rec_buffer - ui_rec_width; |
| } |
| else |
| { |
| pu1_top += 8; |
| } |
| |
| /***************** Left *********************/ |
| if((u1_sub_blk_x) | (u4_num_pmbair != 0)) |
| { |
| // sushant |
| pu1_left = /*pu1_luma_pred_buffer*/pu1_luma_rec_buffer - 1; |
| ui2_left_pred_buf_width = ui_rec_width; |
| } |
| else |
| { |
| pu1_left = pu1_yleft; |
| pu1_yleft += (ui_rec_width << 3); |
| ui2_left_pred_buf_width = ui_rec_width; |
| } |
| |
| /***************** Top Left *********************/ |
| if(u1_sub_mb_num) |
| { |
| pu1_top_left = (u1_sub_blk_x) ? |
| pu1_top - 1 : pu1_left - ui_rec_width; |
| |
| if((u1_sub_blk_x && (!u1_is_top_sub_block)) |
| || ((!u1_sub_blk_x) && (!u1_is_left_sub_block))) |
| { |
| pu1_top_left = NULL; |
| } |
| } |
| |
| /*---------------------------------------------------------------*/ |
| /* Calculation of Intra prediction mode */ |
| /*---------------------------------------------------------------*/ |
| i1_intra_pred = ((i1_left_pred_mode < 0) | (i1_top_pred_mode < 0)) ? |
| DC : MIN(i1_left_pred_mode, i1_top_pred_mode); |
| { |
| UWORD8 u1_packed_modes = (u1_is_top_sub_block << 1) |
| + u1_is_left_sub_block; |
| UWORD8 *pu1_intra_err_codes = |
| (UWORD8 *)gau1_ih264d_intra_pred_err_code; |
| |
| /********************************************************************/ |
| /* Same intra4x4_pred_mode array is filled with intra4x4_pred_mode */ |
| /* for a MB with 8x8 intrapredicition */ |
| /********************************************************************/ |
| PROFILE_DISABLE_INTRA_PRED() |
| if(!pu1_prev_intra4x4_pred_mode_flag[u1_sub_mb_num]) |
| { |
| i1_intra_pred = pu1_rem_intra4x4_pred_mode[u1_sub_mb_num] |
| + (pu1_rem_intra4x4_pred_mode[u1_sub_mb_num] |
| >= i1_intra_pred); |
| } |
| i1_intra_pred = CLIP3(0, 8, i1_intra_pred); |
| { |
| UWORD8 u1_err_code = pu1_intra_err_codes[i1_intra_pred]; |
| |
| if((u1_err_code & u1_packed_modes) ^ u1_err_code) |
| { |
| i1_intra_pred = 0; |
| ps_dec->i4_error_code = ERROR_INTRAPRED; |
| } |
| } |
| } |
| |
| { |
| /* Align the size to multiple of 8, so that SIMD functions |
| can read 64 bits at a time. Only 25 bytes are actaully used */ |
| UWORD8 au1_ngbr_pels[32]; |
| WORD32 ngbr_avail; |
| ngbr_avail = u1_is_left_sub_block << 0; |
| ngbr_avail |= u1_is_top_sub_block << 2; |
| |
| if(pu1_top_left) |
| ngbr_avail |= 1 << 1; |
| |
| ngbr_avail |= u1_use_top_right_mb << 3; |
| PROFILE_DISABLE_INTRA_PRED() |
| { |
| ps_dec->pf_intra_pred_ref_filtering(pu1_left, pu1_top_left, |
| pu1_top, au1_ngbr_pels, |
| ui2_left_pred_buf_width, |
| ngbr_avail); |
| |
| ps_dec->apf_intra_pred_luma_8x8[i1_intra_pred]( |
| au1_ngbr_pels, pu1_luma_rec_buffer, 1, |
| ui_rec_width, |
| ((u1_is_top_sub_block << 2) | u1_is_left_sub_block)); |
| } |
| } |
| |
| /* Inverse Transform and Reconstruction */ |
| if(CHECKBIT(ps_cur_mb_info->u1_cbp, u1_sub_mb_num)) |
| { |
| WORD16 *pi2_scale_matrix_ptr; |
| WORD16 ai2_tmp[64]; |
| |
| pi2_scale_matrix_ptr = |
| ps_dec->s_high_profile.i2_scalinglist8x8[0]; |
| PROFILE_DISABLE_IQ_IT_RECON() |
| { |
| if(CHECKBIT(u4_luma_dc_only_cbp, u1_sub_mb_num)) |
| { |
| ps_dec->pf_iquant_itrans_recon_luma_8x8_dc( |
| pi2_y_coeff1, |
| pu1_luma_rec_buffer, |
| pu1_luma_rec_buffer, |
| 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( |
| pi2_y_coeff1, |
| pu1_luma_rec_buffer, |
| pu1_luma_rec_buffer, |
| 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); |
| } |
| } |
| |
| } |
| |
| /*---------------------------------------------------------------*/ |
| /* Update sub block number */ |
| /*---------------------------------------------------------------*/ |
| pi2_y_coeff1 += 64; |
| |
| pu1_luma_rec_buffer += |
| (u1_sub_blk_x == 1) ? |
| (ui_rec_width << 3) - (8 * 1) : 8; |
| |
| /*---------------------------------------------------------------*/ |
| /* Pred mode filled in terms of 4x4 block so replicated in 2 */ |
| /* locations. */ |
| /*---------------------------------------------------------------*/ |
| pi1_cur_pred_mode[u1_sub_blk_x << 1] = i1_intra_pred; |
| pi1_cur_pred_mode[(u1_sub_blk_x << 1) + 1] = i1_intra_pred; |
| pi1_left_pred_mode[u1_sub_blk_y << 1] = i1_intra_pred; |
| pi1_left_pred_mode[(u1_sub_blk_y << 1) + 1] = i1_intra_pred; |
| } |
| } |
| /* Decode Chroma Block */ |
| ih264d_unpack_chroma_coeff4x4_mb(ps_dec, |
| ps_cur_mb_info); |
| /*--------------------------------------------------------------------*/ |
| /* Chroma Blocks decoding */ |
| /*--------------------------------------------------------------------*/ |
| { |
| UWORD8 u1_intra_chrom_pred_mode; |
| UWORD8 u1_chroma_cbp = (UWORD8)(ps_cur_mb_info->u1_cbp >> 4); |
| |
| /*--------------------------------------------------------------------*/ |
| /* Perform Chroma intra prediction */ |
| /*--------------------------------------------------------------------*/ |
| |
| u1_intra_chrom_pred_mode = CHROMA_TO_LUMA_INTRA_MODE( |
| ps_cur_mb_info->u1_chroma_pred_mode); |
| |
| { |
| UWORD8 u1_packed_modes = (u1_top_available << 1) |
| + u1_left_available; |
| UWORD8 u1_err_code = |
| (u1_intra_chrom_pred_mode & 1) ? |
| u1_intra_chrom_pred_mode : |
| (u1_intra_chrom_pred_mode ^ 2); |
| if((u1_err_code & u1_packed_modes) ^ u1_err_code) |
| { |
| u1_intra_chrom_pred_mode = 0; |
| ps_dec->i4_error_code = ERROR_INTRAPRED; |
| } |
| } |
| |
| /* CHANGED CODE */ |
| if(u1_chroma_cbp != CBPC_ALLZERO) |
| { |
| UWORD16 u2_chroma_csbp = |
| (u1_chroma_cbp == CBPC_ACZERO) ? |
| 0 : ps_cur_mb_info->u2_chroma_csbp; |
| UWORD32 u4_scale_u; |
| UWORD32 u4_scale_v; |
| |
| { |
| UWORD16 au2_ngbr_pels[33]; |
| UWORD8 *pu1_ngbr_pels = (UWORD8 *)au2_ngbr_pels; |
| UWORD16 *pu2_left_uv; |
| UWORD16 *pu2_topleft_uv; |
| WORD32 use_left1 = (u2_use_left_mb_pack & 0x0ff); |
| WORD32 use_left2 = (u2_use_left_mb_pack & 0xff00) >> 8; |
| |
| pu2_left_uv = (UWORD16 *)pu1_uleft; |
| pu2_topleft_uv = (UWORD16 *)pu1_u_top_left; |
| /* Get neighbour pixels */ |
| /* left pels */ |
| if(u2_use_left_mb_pack) |
| { |
| WORD32 i; |
| if(use_left1) |
| { |
| for(i = 0; i < 4; i++) |
| au2_ngbr_pels[8 - 1 - i] = pu2_left_uv[i |
| * u4_recwidth_cr / YUV420SP_FACTOR]; |
| } |
| else |
| { |
| memset(au2_ngbr_pels + 4, 0, 4 * sizeof(UWORD16)); |
| } |
| |
| if(use_left2) |
| { |
| for(i = 4; i < 8; i++) |
| au2_ngbr_pels[8 - 1 - i] = pu2_left_uv[i |
| * u4_recwidth_cr / YUV420SP_FACTOR]; |
| } |
| else |
| { |
| memset(au2_ngbr_pels, 0, 4 * sizeof(UWORD16)); |
| } |
| } |
| else |
| { |
| memset(au2_ngbr_pels, 0, 8 * sizeof(UWORD16)); |
| } |
| |
| /* top left pels */ |
| au2_ngbr_pels[8] = *pu2_topleft_uv; |
| |
| /* top pels */ |
| if(uc_useTopMB) |
| { |
| memcpy(au2_ngbr_pels + 8 + 1, pu1_top_u, |
| 8 * sizeof(UWORD16)); |
| } |
| else |
| { |
| memset(au2_ngbr_pels + 8 + 1, 0, 8 * sizeof(UWORD16)); |
| } |
| |
| PROFILE_DISABLE_INTRA_PRED() |
| ps_dec->apf_intra_pred_chroma[u1_intra_chrom_pred_mode]( |
| pu1_ngbr_pels, |
| pu1_mb_cb_rei1_buffer, |
| 1, |
| u4_recwidth_cr, |
| ((uc_useTopMB << 2) | (use_left2 << 4) |
| | use_left1)); |
| } |
| u4_scale_u = ps_cur_mb_info->u1_qpc_div6; |
| u4_scale_v = ps_cur_mb_info->u1_qpcr_div6; |
| 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_mb_cb_rei1_buffer |
| + ((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[1], |
| 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[1], |
| u4_scale_u, ai2_tmp, pi2_level); |
| } |
| } |
| |
| } |
| } |
| |
| pi2_y_coeff += MB_CHROM_SIZE; |
| u2_chroma_csbp = 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_mb_cb_rei1_buffer + 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[2], |
| 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[2], |
| u4_scale_v, ai2_tmp, pi2_level); |
| } |
| } |
| } |
| } |
| |
| } |
| else |
| { |
| /* If no inverse transform is needed, pass recon buffer pointer */ |
| /* to Intraprediction module instead of pred buffer pointer */ |
| { |
| UWORD16 au2_ngbr_pels[33]; |
| UWORD8 *pu1_ngbr_pels = (UWORD8 *)au2_ngbr_pels; |
| UWORD16 *pu2_left_uv; |
| UWORD16 *pu2_topleft_uv; |
| WORD32 use_left1 = (u2_use_left_mb_pack & 0x0ff); |
| WORD32 use_left2 = (u2_use_left_mb_pack & 0xff00) >> 8; |
| |
| pu2_topleft_uv = (UWORD16 *)pu1_u_top_left; |
| pu2_left_uv = (UWORD16 *)pu1_uleft; |
| |
| /* Get neighbour pixels */ |
| /* left pels */ |
| if(u2_use_left_mb_pack) |
| { |
| WORD32 i; |
| if(use_left1) |
| { |
| for(i = 0; i < 4; i++) |
| au2_ngbr_pels[8 - 1 - i] = pu2_left_uv[i |
| * u4_recwidth_cr / YUV420SP_FACTOR]; |
| } |
| else |
| { |
| memset(au2_ngbr_pels + 4, 0, 4 * sizeof(UWORD16)); |
| } |
| |
| if(use_left2) |
| { |
| for(i = 4; i < 8; i++) |
| au2_ngbr_pels[8 - 1 - i] = pu2_left_uv[i |
| * u4_recwidth_cr / YUV420SP_FACTOR]; |
| } |
| else |
| { |
| memset(au2_ngbr_pels, 0, 4 * sizeof(UWORD16)); |
| } |
| |
| } |
| else |
| { |
| memset(au2_ngbr_pels, 0, 8 * sizeof(UWORD16)); |
| } |
| |
| /* top left pels */ |
| au2_ngbr_pels[8] = *pu2_topleft_uv; |
| |
| /* top pels */ |
| if(uc_useTopMB) |
| { |
| memcpy(au2_ngbr_pels + 8 + 1, pu1_top_u, |
| 8 * sizeof(UWORD16)); |
| } |
| else |
| { |
| memset(au2_ngbr_pels + 8 + 1, 0, 8 * sizeof(UWORD16)); |
| } |
| |
| PROFILE_DISABLE_INTRA_PRED() |
| ps_dec->apf_intra_pred_chroma[u1_intra_chrom_pred_mode]( |
| pu1_ngbr_pels, |
| pu1_mb_cb_rei1_buffer, |
| 1, |
| u4_recwidth_cr, |
| ((uc_useTopMB << 2) | (use_left2 << 4) |
| | use_left1)); |
| } |
| |
| } |
| |
| } |
| return OK; |
| } |
