186 lines
6.6 KiB
C
186 lines
6.6 KiB
C
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/******************************************************************************
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* *
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*****************************************************************************
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* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
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*/
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#ifndef IXHEAACD_ENV_EXTR_H
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#define IXHEAACD_ENV_EXTR_H
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#include "ixheaacd_error_standards.h"
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#define ENV_EXP_FRACT 0
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#define EXP_BITS 6
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#define MASK_M (((1 << (SHORT_BITS - EXP_BITS)) - 1) << EXP_BITS)
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#define MASK_FOR_EXP ((1 << EXP_BITS) - 1)
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#define SIGN_EXT (((WORD8)-1) ^ MASK_FOR_EXP)
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#define ROUNDING (1 << (EXP_BITS - 1))
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#define NRG_EXP_OFFSET 16
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#define NOISE_EXP_OFFSET 38
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#define MAX_QMF_SUB_BANDS 64
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typedef const UWORD16 *ia_huffman_data_type;
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#define COUPLING_OFF 0
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#define COUPLING_LEVEL 1
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#define COUPLING_BAL 2
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#define MAX_INVF_BANDS MAX_NOISE_COEFFS
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typedef struct {
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WORD16 sfb_nrg_prev[MAX_FREQ_COEFFS];
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WORD16 prev_noise_level[MAX_NOISE_COEFFS];
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WORD16 amp_res;
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WORD16 end_position;
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WORD32 max_qmf_subband_aac;
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WORD32 coupling_mode;
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WORD32 sbr_invf_mode[MAX_NUM_NOISE_VALUES];
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} ia_sbr_prev_frame_data_struct;
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typedef struct {
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WORD16 num_env_sfac;
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ia_frame_info_struct str_frame_info_details;
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WORD16 del_cod_dir_arr[MAX_ENVELOPES];
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WORD16 del_cod_dir_noise_arr[MAX_NOISE_ENVELOPES];
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WORD32 sbr_invf_mode[MAX_NUM_NOISE_VALUES];
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WORD32 coupling_mode;
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WORD16 amp_res;
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WORD32 max_qmf_subband_aac;
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FLAG add_harmonics[MAX_FREQ_COEFFS];
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WORD16 int_env_sf_arr[MAX_NUM_ENVELOPE_VALUES];
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WORD16 int_noise_floor[MAX_NUM_NOISE_VALUES];
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WORD32 num_noise_sfac;
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ia_frame_info_struct str_pvc_frame_info;
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WORD32 env_short_flag_prev;
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ia_sbr_header_data_struct *pstr_sbr_header;
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WORD32 num_time_slots;
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WORD32 rate;
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WORD32 sbr_patching_mode;
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WORD32 prev_sbr_patching_mode;
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WORD32 over_sampling_flag;
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WORD32 pitch_in_bins;
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WORD32 pvc_mode;
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WORD32 sbr_invf_mode_prev[MAX_NUM_NOISE_VALUES];
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FLOAT32 flt_env_sf_arr[MAX_NUM_ENVELOPE_VALUES];
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FLOAT32 flt_noise_floor[MAX_NUM_NOISE_VALUES];
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FLOAT32 sfb_nrg_prev[MAX_FREQ_COEFFS];
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FLOAT32 prev_noise_level[MAX_NUM_NOISE_VALUES];
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WORD32 inter_temp_shape_mode[MAX_ENVELOPES];
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WORD32 var_len;
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WORD32 bs_sin_pos_present;
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WORD32 sine_position;
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WORD32 sin_start_for_next_top;
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WORD32 sin_len_for_next_top;
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WORD32 sin_start_for_cur_top;
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WORD32 sin_len_for_cur_top;
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WORD32 var_len_id_prev;
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ia_frame_info_struct str_frame_info_prev;
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FLOAT32 bw_array_prev[MAX_NUM_PATCHES];
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struct ixheaacd_lpp_trans_patch patch_param;
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WORD32 harm_index;
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WORD32 phase_index;
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WORD8 harm_flag_prev[64];
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FLOAT32 e_gain[5][64];
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FLOAT32 noise_buf[5][64];
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WORD32 lim_table[4][12 + 1];
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WORD32 gate_mode[4];
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WORD8 harm_flag_varlen_prev[64];
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WORD8 harm_flag_varlen[64];
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FLOAT32 qmapped_pvc[MAX_QMF_SUB_BANDS][MAX_FREQ_COEFFS_SBR];
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FLOAT32 env_tmp[MAX_QMF_SUB_BANDS][MAX_FREQ_COEFFS_SBR];
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FLOAT32 noise_level_pvc[MAX_QMF_SUB_BANDS][MAX_FREQ_COEFFS_SBR];
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FLOAT32 nrg_est_pvc[MAX_QMF_SUB_BANDS][MAX_FREQ_COEFFS_SBR];
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FLOAT32 nrg_ref_pvc[MAX_QMF_SUB_BANDS][MAX_FREQ_COEFFS_SBR];
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FLOAT32 nrg_gain_pvc[MAX_QMF_SUB_BANDS][MAX_FREQ_COEFFS_SBR];
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FLOAT32 nrg_tone_pvc[MAX_QMF_SUB_BANDS][MAX_FREQ_COEFFS_SBR];
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WORD32 stereo_config_idx;
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FLAG reset_flag;
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FLAG mps_sbr_flag;
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FLAG usac_independency_flag;
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FLAG inter_tes_flag;
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FLAG sbr_mode;
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FLAG prev_sbr_mode;
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WORD32 eld_sbr_flag;
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} ia_sbr_frame_info_data_struct;
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IA_ERRORCODE ixheaacd_sbr_read_sce(
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ia_sbr_header_data_struct *ptr_header_data,
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ia_sbr_frame_info_data_struct *ptr_frame_data, ia_ps_dec_struct *ptr_ps_dec,
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ia_bit_buf_struct *it_bit_buff, ia_sbr_tables_struct *ptr_sbr_tables,
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WORD audio_object_type);
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IA_ERRORCODE ixheaacd_sbr_read_cpe(
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ia_sbr_header_data_struct *ptr_header_data,
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ia_sbr_frame_info_data_struct **ptr_frame_data,
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ia_bit_buf_struct *itt_bit_buf, ia_sbr_tables_struct *ptr_sbr_tables,
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WORD audio_object_type);
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WORD32 ixheaacd_sbr_read_header_data(
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ia_sbr_header_data_struct *ptr_sbr_header, ia_bit_buf_struct *it_bit_buf,
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FLAG stereo_flag, ia_sbr_header_data_struct *ptr_sbr_dflt_header);
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WORD32 ixheaacd_ssc_huff_dec(ia_huffman_data_type h,
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ia_bit_buf_struct *it_bit_buff);
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IA_ERRORCODE ixheaacd_extract_frame_info_ld(
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ia_bit_buf_struct *it_bit_buff,
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ia_sbr_frame_info_data_struct *h_frame_data);
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WORD32 ixheaacd_pvc_time_freq_grid_info(
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ia_bit_buf_struct *it_bit_buff,
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ia_sbr_frame_info_data_struct *ptr_frame_data);
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WORD16 ixheaacd_sbr_time_freq_grid_info(
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ia_bit_buf_struct *it_bit_buff,
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ia_sbr_frame_info_data_struct *ptr_frame_data,
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ia_env_extr_tables_struct *env_extr_tables_ptr);
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WORD16 ixheaacd_read_sbr_env_data(
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ia_sbr_header_data_struct *ptr_header_data,
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ia_sbr_frame_info_data_struct *ptr_frame_data,
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ia_bit_buf_struct *it_bit_buff,
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ia_env_extr_tables_struct *env_extr_tables_ptr, WORD audio_object_type);
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VOID ixheaacd_sbr_env_dtdf_data(ia_sbr_frame_info_data_struct *ptr_frame_data,
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ia_bit_buf_struct *it_bit_buff,
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WORD32 usac_flag);
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VOID ixheaacd_read_sbr_noise_floor_data(
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ia_sbr_header_data_struct *ptr_header_data,
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ia_sbr_frame_info_data_struct *ptr_frame_data,
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ia_bit_buf_struct *it_bit_buff,
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ia_env_extr_tables_struct *env_extr_tables_ptr);
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VOID ixheaacd_huffman_decode(WORD32 it_bit_buff, WORD16 *h_index, WORD16 *len,
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const UWORD16 *input_table,
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const UWORD32 *idx_table);
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IA_ERRORCODE ixheaacd_createlimiterbands(
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WORD32 lim_table[4][12 + 1], WORD32 gate_mode[4], WORD16 *freq_band_tbl,
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WORD32 ixheaacd_num_bands, WORD32 x_over_qmf[MAX_NUM_PATCHES],
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WORD32 b_patching_mode, WORD32 upsamp_4_flag,
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struct ixheaacd_lpp_trans_patch *patch_param);
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VOID ixheaacd_apply_inter_tes(FLOAT32 *qmf_real1, FLOAT32 *qmf_imag1,
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FLOAT32 *qmf_real, FLOAT32 *qmf_imag,
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WORD32 num_sample, WORD32 sub_band_start,
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WORD32 num_subband, WORD32 gamma_idx);
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#endif
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