1 /****************************************************************************** 2 * 3 * Copyright (C) 2023 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_MPS_AAC_STRUCT_H 21 #define IXHEAACD_MPS_AAC_STRUCT_H 22 23 #include "ixheaacd_defines.h" 24 25 #define PNS_BAND_FLAGS_SIZE 16 26 #define MAX_WINDOWS 8 27 #define MAX_SFB_SHORT 16 28 #define MAXIMUM_LINES 4 29 30 typedef struct { 31 WORD16 a_scale_factor[MAX_WINDOWS * MAX_SFB_SHORT]; 32 WORD8 a_code_book[MAX_WINDOWS * MAX_SFB_SHORT]; 33 } ia_mps_dec_residual_dynamic_data_struct; 34 35 typedef struct { 36 WORD16 window_sequence; 37 WORD16 max_sf_bands; 38 WORD16 total_sf_bands; 39 WORD16 sampling_rate_index; 40 WORD16 window_groups; 41 WORD8 window_group_length[8]; 42 WORD16 frame_length; 43 44 } ia_mps_dec_residual_ics_info_struct; 45 46 typedef struct { 47 WORD16 start_band; 48 WORD16 stop_band; 49 WORD8 direction; 50 WORD8 resolution; 51 WORD8 order; 52 WORD8 coeff[MAX_ORDER]; 53 } ia_mps_dec_residual_filter_struct; 54 55 typedef struct { 56 FLAG tns_data_present; 57 WORD8 number_of_filters[MAX_WINDOWS]; 58 ia_mps_dec_residual_filter_struct filter[MAX_WINDOWS][MAX_FILTERS]; 59 } ia_mps_dec_residual_tns_data; 60 61 typedef struct { 62 FLAG pulse_data_present; 63 WORD16 number_pulse; 64 WORD16 pulse_start_band; 65 WORD8 pulse_offset[MAXIMUM_LINES]; 66 WORD8 pulse_amp[MAXIMUM_LINES]; 67 } ia_mps_dec_residual_pulse_data_struct; 68 69 typedef struct { 70 UWORD8 pns_used[PNS_BAND_FLAGS_SIZE * 8]; 71 WORD16 current_energy; 72 UWORD16 pns_active; 73 } ia_mps_dec_residual_pns_data_struct; 74 75 typedef struct { 76 WORD16 *p_scale_factor; 77 WORD8 *p_code_book; 78 WORD32 *p_spectral_coefficient; 79 ia_mps_dec_residual_ics_info_struct ics_info; 80 ia_mps_dec_residual_tns_data tns_data; 81 ia_mps_dec_residual_pulse_data_struct pulse_data; 82 ia_mps_dec_residual_pns_data_struct pns_data; 83 WORD16 common_window; 84 WORD16 global_gain; 85 WORD32 *p_tns_scratch; 86 } ia_mps_dec_residual_channel_info_struct; 87 88 typedef struct { 89 WORD16 sfb_long_idx[52]; 90 WORD16 sfb_short_idx[16]; 91 92 } ia_mps_dec_residual_sfband_info_struct; 93 94 #endif /* IXHEAACD_MPS_AAC_STRUCT_H */ 95