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/******************************************************************************
* *
* Copyright (C) 2018 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
*/
#ifndef IXHEAACD_ENV_EXTR_H
#define IXHEAACD_ENV_EXTR_H
#include "ixheaacd_error_standards.h"
#define ENV_EXP_FRACT 0
#define EXP_BITS 6
#define MASK_M (((1 << (SHORT_BITS - EXP_BITS)) - 1) << EXP_BITS)
#define MASK_FOR_EXP ((1 << EXP_BITS) - 1)
#define SIGN_EXT (((WORD8)-1) ^ MASK_FOR_EXP)
#define ROUNDING (1 << (EXP_BITS - 1))
#define NRG_EXP_OFFSET 16
#define NOISE_EXP_OFFSET 38
#define MAX_QMF_SUB_BANDS 64
typedef const UWORD16 *ia_huffman_data_type;
#define COUPLING_OFF 0
#define COUPLING_LEVEL 1
#define COUPLING_BAL 2
#define MAX_INVF_BANDS MAX_NOISE_COEFFS
typedef struct {
WORD16 sfb_nrg_prev[MAX_FREQ_COEFFS];
WORD16 prev_noise_level[MAX_NOISE_COEFFS];
WORD16 amp_res;
WORD16 end_position;
WORD32 max_qmf_subband_aac;
WORD32 coupling_mode;
WORD32 sbr_invf_mode[MAX_NUM_NOISE_VALUES];
} ia_sbr_prev_frame_data_struct;
typedef struct {
WORD16 num_env_sfac;
ia_frame_info_struct str_frame_info_details;
WORD16 del_cod_dir_arr[MAX_ENVELOPES];
WORD16 del_cod_dir_noise_arr[MAX_NOISE_ENVELOPES];
WORD32 sbr_invf_mode[MAX_NUM_NOISE_VALUES];
WORD32 coupling_mode;
WORD16 amp_res;
WORD32 max_qmf_subband_aac;
FLAG add_harmonics[MAX_FREQ_COEFFS];
WORD16 int_env_sf_arr[MAX_NUM_ENVELOPE_VALUES];
WORD16 int_noise_floor[MAX_NUM_NOISE_VALUES];
WORD32 num_noise_sfac;
ia_frame_info_struct str_pvc_frame_info;
WORD32 env_short_flag_prev;
ia_sbr_header_data_struct *pstr_sbr_header;
WORD32 num_time_slots;
WORD32 rate;
WORD32 sbr_patching_mode;
WORD32 prev_sbr_patching_mode;
WORD32 over_sampling_flag;
WORD32 pitch_in_bins;
WORD32 pvc_mode;
WORD32 cov_count;
WORD32 sbr_invf_mode_prev[MAX_NUM_NOISE_VALUES];
FLOAT32 flt_env_sf_arr[MAX_NUM_ENVELOPE_VALUES];
FLOAT32 flt_noise_floor[MAX_NUM_NOISE_VALUES];
FLOAT32 sfb_nrg_prev[MAX_FREQ_COEFFS];
FLOAT32 prev_noise_level[MAX_NUM_NOISE_VALUES];
WORD32 inter_temp_shape_mode[MAX_ENVELOPES];
WORD32 var_len;
WORD32 bs_sin_pos_present;
WORD32 sine_position;
WORD32 sin_start_for_next_top;
WORD32 sin_len_for_next_top;
WORD32 sin_start_for_cur_top;
WORD32 sin_len_for_cur_top;
WORD32 var_len_id_prev;
ia_frame_info_struct str_frame_info_prev;
FLOAT32 bw_array_prev[MAX_NUM_PATCHES];
struct ixheaacd_lpp_trans_patch patch_param;
WORD32 harm_index;
WORD32 phase_index;
WORD8 harm_flag_prev[64];
FLOAT32 e_gain[5][64];
FLOAT32 noise_buf[5][64];
WORD32 lim_table[4][12 + 1];
WORD32 gate_mode[4];
WORD8 harm_flag_varlen_prev[64];
WORD8 harm_flag_varlen[64];
FLOAT32 qmapped_pvc[MAX_QMF_SUB_BANDS][MAX_FREQ_COEFFS_SBR];
FLOAT32 env_tmp[MAX_QMF_SUB_BANDS][MAX_FREQ_COEFFS_SBR];
FLOAT32 noise_level_pvc[MAX_QMF_SUB_BANDS][MAX_FREQ_COEFFS_SBR];
FLOAT32 nrg_est_pvc[MAX_QMF_SUB_BANDS][MAX_FREQ_COEFFS_SBR];
FLOAT32 nrg_ref_pvc[MAX_QMF_SUB_BANDS][MAX_FREQ_COEFFS_SBR];
FLOAT32 nrg_gain_pvc[MAX_QMF_SUB_BANDS][MAX_FREQ_COEFFS_SBR];
FLOAT32 nrg_tone_pvc[MAX_QMF_SUB_BANDS][MAX_FREQ_COEFFS_SBR];
WORD32 stereo_config_idx;
FLAG reset_flag;
FLAG mps_sbr_flag;
FLAG usac_independency_flag;
FLAG inter_tes_flag;
FLAG sbr_mode;
FLAG prev_sbr_mode;
WORD32 eld_sbr_flag;
} ia_sbr_frame_info_data_struct;
IA_ERRORCODE ixheaacd_sbr_read_sce(ia_sbr_header_data_struct *ptr_header_data,
ia_sbr_frame_info_data_struct *ptr_frame_data,
ia_ps_dec_struct *ptr_ps_dec, ia_bit_buf_struct *it_bit_buff,
ia_sbr_tables_struct *ptr_sbr_tables, WORD audio_object_type,
WORD32 ec_flag);
IA_ERRORCODE ixheaacd_sbr_read_cpe(
ia_sbr_header_data_struct *ptr_header_data,
ia_sbr_frame_info_data_struct **ptr_frame_data,
ia_bit_buf_struct *itt_bit_buf, ia_sbr_tables_struct *ptr_sbr_tables,
WORD audio_object_type);
WORD32 ixheaacd_sbr_read_header_data(
ia_sbr_header_data_struct *ptr_sbr_header, ia_bit_buf_struct *it_bit_buf,
FLAG stereo_flag, ia_sbr_header_data_struct *ptr_sbr_dflt_header);
WORD32 ixheaacd_ssc_huff_dec(ia_huffman_data_type h,
ia_bit_buf_struct *it_bit_buff);
IA_ERRORCODE ixheaacd_extract_frame_info_ld(
ia_bit_buf_struct *it_bit_buff,
ia_sbr_frame_info_data_struct *h_frame_data);
WORD32 ixheaacd_pvc_time_freq_grid_info(
ia_bit_buf_struct *it_bit_buff,
ia_sbr_frame_info_data_struct *ptr_frame_data);
WORD16 ixheaacd_sbr_time_freq_grid_info(
ia_bit_buf_struct *it_bit_buff,
ia_sbr_frame_info_data_struct *ptr_frame_data,
ia_env_extr_tables_struct *env_extr_tables_ptr, WORD16 number_of_timeslots);
WORD16 ixheaacd_read_sbr_env_data(
ia_sbr_header_data_struct *ptr_header_data,
ia_sbr_frame_info_data_struct *ptr_frame_data,
ia_bit_buf_struct *it_bit_buff,
ia_env_extr_tables_struct *env_extr_tables_ptr, WORD audio_object_type);
VOID ixheaacd_sbr_env_dtdf_data(ia_sbr_frame_info_data_struct *ptr_frame_data,
ia_bit_buf_struct *it_bit_buff,
WORD32 usac_flag);
VOID ixheaacd_read_sbr_noise_floor_data(
ia_sbr_header_data_struct *ptr_header_data,
ia_sbr_frame_info_data_struct *ptr_frame_data,
ia_bit_buf_struct *it_bit_buff,
ia_env_extr_tables_struct *env_extr_tables_ptr);
VOID ixheaacd_huffman_decode(WORD32 it_bit_buff, WORD16 *h_index, WORD16 *len,
const UWORD16 *input_table,
const UWORD32 *idx_table);
IA_ERRORCODE ixheaacd_createlimiterbands(WORD32 lim_table[4][12 + 1], WORD32 gate_mode[4],
WORD16 *freq_band_tbl, WORD32 ixheaacd_num_bands,
WORD32 x_over_qmf[MAX_NUM_PATCHES],
WORD32 b_patching_mode, WORD32 upsamp_4_flag,
struct ixheaacd_lpp_trans_patch *patch_param,
WORD32 ec_flag);
WORD32 ixheaacd_apply_inter_tes(FLOAT32 *qmf_real1, FLOAT32 *qmf_imag1,
FLOAT32 *qmf_real, FLOAT32 *qmf_imag,
WORD32 num_sample, WORD32 sub_band_start,
WORD32 num_subband, WORD32 gamma_idx);
#endif
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