1 /****************************************************************************** 2 * * 3 * Copyright (C) 2018 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ***************************************************************************** 18 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore 19 */ 20 #ifndef IXHEAACD_LPP_TRAN_H 21 #define IXHEAACD_LPP_TRAN_H 22 23 #define MAX_NUM_PATCHES 6 24 #define GUARDBANDS 0 25 #define SHIFT_START_SB 1 26 27 typedef struct { 28 WORD32 phi_11; 29 WORD32 phi_22; 30 WORD32 phi_01; 31 WORD32 phi_02; 32 WORD32 phi_12; 33 WORD32 phi_01_im; 34 WORD32 phi_02_im; 35 WORD32 phi_12_im; 36 WORD32 d; 37 } ixheaacd_lpp_trans_cov_matrix; 38 39 typedef struct { 40 WORD16 src_start_band; 41 WORD16 src_end_band; 42 WORD16 guard_start_band; 43 44 WORD16 dst_start_band; 45 WORD16 dst_end_band; 46 WORD16 num_bands_in_patch; 47 } ia_patch_param_struct; 48 49 typedef struct { 50 WORD16 num_columns; 51 WORD16 num_patches; 52 WORD16 start_patch; 53 WORD16 stop_patch; 54 WORD16 bw_borders[MAX_NUM_NOISE_VALUES]; 55 ia_patch_param_struct str_patch_param[MAX_NUM_PATCHES]; 56 } ia_transposer_settings_struct; 57 58 typedef struct { 59 ia_transposer_settings_struct *pstr_settings; 60 WORD32 bw_array_prev[MAX_NUM_PATCHES]; 61 WORD32 *lpc_filt_states_real[LPC_ORDER]; 62 WORD32 *lpc_filt_states_imag[LPC_ORDER]; 63 } ia_sbr_hf_generator_struct; 64 65 VOID ixheaacd_low_pow_hf_generator( 66 ia_sbr_hf_generator_struct *hf_generator, WORD32 **qmf_buff_re, 67 WORD16 *degree_alias, WORD first_slot_offset, WORD last_slot_offset, 68 WORD num_if_bands, WORD max_qmf_subband_aac, WORD32 *sbr_invf_mode, 69 WORD32 *sbr_invf_mode_prev, WORD32 norm_max, WORD32 *ptr_qmf_matrix); 70 71 VOID ixheaacd_hf_generator(ia_sbr_hf_generator_struct *hf_generator, 72 ia_sbr_scale_fact_struct *sbr_scale_factor, 73 WORD32 **qmf_buff_re, WORD32 **qmf_buff_im, 74 WORD time_step, WORD first_slot_offset, 75 WORD last_slot_offset, WORD num_if_bands, 76 WORD max_qmf_subband_aac, WORD32 *sbr_invf_mode, 77 WORD32 *sbr_invf_mode_prev, WORD32 *ptr_qmf_matrix, 78 WORD audio_object_type); 79 80 VOID ixheaacd_invfilt_level_emphasis(ia_sbr_hf_generator_struct *hf_generator, 81 WORD32 num_if_bands, WORD32 *sbr_invf_mode, 82 WORD32 *sbr_invf_mode_prev, 83 WORD32 *bw_array); 84 85 struct ixheaacd_lpp_trans_patch { 86 WORD32 num_patches; 87 WORD32 start_subband[MAX_NUM_PATCHES + 1]; 88 }; 89 90 VOID ixheaacd_covariance_matrix_calc_dec( 91 WORD32 *sub_sign_xlow, ixheaacd_lpp_trans_cov_matrix *cov_matrix, 92 WORD32 count); 93 94 VOID ixheaacd_covariance_matrix_calc_armv7( 95 WORD32 *sub_sign_xlow, ixheaacd_lpp_trans_cov_matrix *cov_matrix, 96 WORD32 count); 97 98 VOID ixheaacd_covariance_matrix_calc_2_dec( 99 ixheaacd_lpp_trans_cov_matrix *cov_matrix, WORD32 *real_buffer, 100 WORD32 ixheaacd_num_bands, WORD16 slots); 101 102 VOID ixheaacd_covariance_matrix_calc_2_armv7( 103 ixheaacd_lpp_trans_cov_matrix *cov_matrix, WORD32 *real_buffer, 104 WORD32 ixheaacd_num_bands, WORD16 slots); 105 106 #endif /* IXHEAACD_LPP_TRAN_H */ 107
