| /****************************************************************************** |
| * * |
| * 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 |
| |
| 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 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[64][48]; |
| FLOAT32 env_tmp[64][48]; |
| FLOAT32 noise_level_pvc[64][48]; |
| FLOAT32 nrg_est_pvc[64][48]; |
| FLOAT32 nrg_ref_pvc[64][48]; |
| FLOAT32 nrg_gain_pvc[64][48]; |
| FLOAT32 nrg_tone_pvc[64][48]; |
| 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; |
| |
| WORD8 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); |
| |
| WORD8 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); |
| |
| int 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 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); |
| |
| VOID 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 |
