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 struct ixheaace_mps_qmf_filter_bank { 23 const FLOAT32 *pstr_filter; 24 VOID *ptr_filter_states; 25 WORD32 filter_size; 26 WORD32 no_channels; 27 WORD32 no_col; 28 WORD32 lsb; 29 WORD32 usb; 30 UWORD8 p_stride; 31 }; 32 33 typedef struct ixheaace_mps_qmf_filter_bank ixheaace_mps_qmf_filter_bank, 34 *ixheaace_mps_pstr_qmf_filter_bank; 35 36 IA_ERRORCODE 37 ixheaace_mps_212_qmf_init_filter_bank(ixheaace_mps_pstr_qmf_filter_bank pstr_qmf_filter_bank, 38 VOID *p_filter_states, WORD32 num_cols, WORD32 lsb, 39 WORD32 usb, WORD32 no_channels); 40 41 IA_ERRORCODE ixheaace_mps_212_qmf_analysis_filtering_slot( 42 ixheaace_mps_pstr_qmf_filter_bank pstr_qmf_filter_bank, FLOAT32 *qmf_real, FLOAT32 *qmf_imag, 43 const FLOAT32 *time_in, const WORD32 stride, FLOAT32 *p_work_buffer, WORD8 *ptr_scratch); 44