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_MAXIMUM_OCTAVE (29) 24 #define IXHEAACE_MAXIMUM_SECOND_REGION (50) 25 26 IA_ERRORCODE 27 ixheaace_update_freq_scale(UWORD8 *ptr_k_master, WORD32 *ptr_num_bands, const WORD32 k0, 28 const WORD32 k2, const WORD32 freq_scale, const WORD32 alter_scale, 29 ixheaace_sr_mode sbr_rate); 30 31 VOID ixheaace_update_high_res(UWORD8 *ptr_hires, WORD32 *ptr_num_hires, UWORD8 *ptr_k_master, 32 WORD32 num_master, WORD32 *ptr_xover_band, 33 ixheaace_sr_mode dr_or_sr, WORD32 num_qmf_ch); 34 35 VOID ixheaace_update_low_res(UWORD8 *ptr_lores, WORD32 *ptr_num_lores, UWORD8 *ptr_hires, 36 WORD32 ptr_num_hires); 37 38 IA_ERRORCODE 39 ixheaace_find_start_and_stop_band(const WORD32 sampling_freq, const WORD32 num_channels, 40 const WORD32 start_freq, const WORD32 stop_freq, 41 const ixheaace_sr_mode sample_rate_mode, WORD32 *ptr_k0, 42 WORD32 *ptr_k2, WORD32 sbr_ratio_idx, 43 ixheaace_sbr_codec_type sbr_codec); 44 45 WORD32 ixheaace_get_sbr_start_freq_raw(WORD32 start_freq, WORD32 qmf_bands, WORD32 fs); 46