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 typedef struct { 23 const FLOAT32 *p_filter; 24 } ixheaace_mps_sac_qmf_ana_filter_bank; 25 26 typedef struct { 27 const FLOAT32 *p_filter; 28 const FLOAT32 *cos_twiddle; 29 const FLOAT32 *sin_twiddle; 30 const FLOAT32 *alt_sin_twiddle; 31 } ixheaace_mps_sac_qmf_synth_filter_bank; 32 33 typedef ixheaace_mps_sac_qmf_ana_filter_bank *ixheaace_mps_sac_pstr_qmf_ana_filter_bank; 34 typedef ixheaace_mps_sac_qmf_synth_filter_bank *ixheaace_mps_sac_pstr_qmf_synth_filter_bank; 35