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 IA_ERRORCODE 23 ia_enhaacplus_enc_init_tns_configuration(WORD32 bit_rate, WORD32 sample_rate, WORD32 channels, 24 ixheaace_temporal_noise_shaping_config *pstr_tns_config, 25 ixheaace_psy_configuration_long *pstr_psy_config, 26 WORD32 active, 27 ixheaace_temporal_noise_shaping_tables *pstr_tns_tab, 28 WORD32 frame_len_long, WORD32 aot); 29 30 IA_ERRORCODE ia_enhaacplus_enc_init_tns_configuration_short( 31 WORD32 bit_rate, WORD32 sample_rate, WORD32 channels, 32 ixheaace_temporal_noise_shaping_config *pstr_tns_config, 33 ixheaace_psy_configuration_short *pstr_psy_config, WORD32 active, 34 ixheaace_temporal_noise_shaping_tables *pstr_tns_tab, WORD32 frame_len_long, WORD32 aot); 35 36 IA_ERRORCODE ia_enhaacplus_enc_tns_detect(ixheaace_temporal_noise_shaping_data *pstr_tns_data, 37 ixheaace_temporal_noise_shaping_config tns_config, 38 FLOAT32 *ptr_scratch_tns, const WORD32 *ptr_sfb_offset, 39 FLOAT32 *ptr_spectrum, WORD32 sub_blk_num, 40 WORD32 block_type, WORD32 aot, FLOAT32 *ptr_sfb_energy, 41 FLOAT32 *ptr_shared_buffer1, WORD32 long_frame_len); 42 43 VOID ia_enhaacplus_enc_tns_sync(ixheaace_temporal_noise_shaping_data *pstr_tns_data_dst, 44 const ixheaace_temporal_noise_shaping_data *pstr_tns_data_src, 45 const ixheaace_temporal_noise_shaping_config tns_config, 46 const WORD32 sub_blk_num, const WORD32 block_type); 47 48 VOID ia_enhaacplus_enc_tns_encode(ixheaace_temporal_noise_shaping_params *pstr_tns_info, 49 ixheaace_temporal_noise_shaping_data *pstr_tns_data, 50 WORD32 num_sfb, 51 ixheaace_temporal_noise_shaping_config tns_config, 52 WORD32 lowpass_line, FLOAT32 *ptr_spectrum, 53 WORD32 sub_blk_num, WORD32 block_type, 54 ixheaace_temporal_noise_shaping_tables *pstr_tns_tab); 55 56 VOID ia_enhaacplus_enc_apply_tns_mult_table_to_ratios(WORD32 startCb, WORD32 stopCb, 57 FLOAT32 *thresholds); 58 59 VOID ia_enhaacplus_enc_calc_weighted_spectrum(FLOAT32 *ptr_spectrum, FLOAT32 *ptr_weighted_spec, 60 FLOAT32 *ptr_sfb_energy, 61 const WORD32 *ptr_sfb_offset, WORD32 lpc_start_line, 62 WORD32 lpc_stop_line, WORD32 lpc_start_band, 63 WORD32 lpc_stop_band, FLOAT32 *ptr_shared_buffer1, 64 WORD32 aot); 65 66 VOID ia_enhaacplus_enc_auto_correlation(const FLOAT32 *ptr_input, FLOAT32 *ptr_corr, 67 WORD32 samples, WORD32 corr_coeff); 68 69 VOID ia_enhaacplus_enc_analysis_filter_lattice(const FLOAT32 *ptr_signal, WORD32 num_lines, 70 const FLOAT32 *ptr_par_coeff, WORD32 order, 71 FLOAT32 *ptr_output); 72