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 21 #pragma once 22 23 #define IXHEAACE_NUM_QMF_SYNTH_CHANNELS (64) 24 #define IXHEAACE_TIMESLOT_BUFFER_SIZE (78) 25 26 #define IXHEAACE_PS_BUF4_SIZE \ 27 (sizeof(WORD32) * (IXHEAACE_QMF_TIME_SLOTS + IXHEAACE_QMF_BUFFER_MOVE) + \ 28 sizeof(WORD32 *) * (IXHEAACE_NUM_QMF_BANDS_IN_HYBRID + \ 29 IXHEAACE_NUM_QMF_BANDS_IN_HYBRID * IXHEAACE_QMF_BUFFER_MOVE)) 30 31 typedef struct { 32 const FLOAT32 *ptr_flt_filter; 33 const FLOAT32 *ptr_flt_cos_twiddle; 34 const FLOAT32 *ptr_flt_alt_sin_twiddle; 35 FLOAT32 *ptr_flt_time_buf; 36 FLOAT32 *ptr_flt_work_buf; 37 WORD16 flag; 38 SIZE_T offset_l; 39 SIZE_T offset_r; 40 WORD16 offset; 41 const FLOAT32 *ptr_filter; 42 const FLOAT32 *ptr_cos_twiddle; 43 const FLOAT32 *ptr_sin_twiddle; 44 const FLOAT32 *ptr_alt_sin_twiddle; 45 FLOAT32 *ptr_work_buf; 46 FLOAT32 *ptr_sbr_qmf_states_ana; 47 FLOAT32 *ptr_qmf_states_buf; 48 FLOAT32 *ptr_qmf_states_curr_pos; 49 const FLOAT32 *ptr_ref_coeff_l; 50 const FLOAT32 *ptr_ref_coeff_r; 51 const FLOAT32 *ptr_cld_filt; 52 FLOAT32 *ptr_fp1; 53 FLOAT32 *ptr_fp2; 54 WORD32 start_coeff_cnt; 55 WORD32 num_time_slots; 56 WORD32 rate; 57 } ixheaace_str_sbr_qmf_filter_bank; 58 59 typedef ixheaace_str_sbr_qmf_filter_bank *ixheaace_pstr_sbr_qmf_filter_bank; 60 61 VOID ixheaace_sbr_analysis_filtering(const FLOAT32 *ptr_time_in, WORD32 time_sn_stride, 62 FLOAT32 **ptr_ana_r, FLOAT32 **ptr_ana_i, 63 ixheaace_pstr_sbr_qmf_filter_bank pstr_qmf_bank, 64 ixheaace_str_qmf_tabs *pstr_qmf_tab, WORD32 num_qmf_subsamp, 65 WORD32 is_ld_sbr, FLOAT32 *ptr_sbr_scratch, 66 WORD32 is_ps_960); 67 68 VOID ixheaace_create_qmf_bank(ixheaace_pstr_sbr_qmf_filter_bank pstr_sbr_qmf_handle, 69 ixheaace_str_sbr_tabs *pstr_sbr_tab, WORD32 is_ld_sbr); 70 71 VOID ixheaace_get_energy_from_cplx_qmf( 72 FLOAT32 **ptr_energy_vals, FLOAT32 **ptr_real_values, FLOAT32 **ptr_imag_values, 73 WORD32 is_ld_sbr, WORD32 num_time_slots, WORD32 samp_ratio_fac, 74 ixheaace_str_hbe_enc *pstr_hbe_enc, WORD32 op_delay, WORD32 harmonic_sbr); 75 76 VOID ixheaace_enc_synthesis_qmf_filtering(FLOAT32 **ptr_sbr_re, FLOAT32 **ptr_sbr_im, 77 FLOAT32 *time_float, 78 ixheaace_pstr_sbr_qmf_filter_bank pstr_qmf_bank); 79 80 VOID ixheaace_create_synthesis_qmf_bank( 81 ixheaace_pstr_sbr_qmf_filter_bank pstr_sbr_qmf_filter_bank, WORD32 *ptr_common_buffer, 82 ixheaace_str_sbr_tabs *pstr_sbr_tab); 83