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/******************************************************************************
* *
* Copyright (C) 2023 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*****************************************************************************
* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
*/
#pragma once
IA_ERRORCODE
ia_enhaacplus_enc_init_tns_configuration(WORD32 bit_rate, WORD32 sample_rate, WORD32 channels,
ixheaace_temporal_noise_shaping_config *pstr_tns_config,
ixheaace_psy_configuration_long *pstr_psy_config,
WORD32 active,
ixheaace_temporal_noise_shaping_tables *pstr_tns_tab,
WORD32 frame_len_long, WORD32 aot);
IA_ERRORCODE ia_enhaacplus_enc_init_tns_configuration_short(
WORD32 bit_rate, WORD32 sample_rate, WORD32 channels,
ixheaace_temporal_noise_shaping_config *pstr_tns_config,
ixheaace_psy_configuration_short *pstr_psy_config, WORD32 active,
ixheaace_temporal_noise_shaping_tables *pstr_tns_tab, WORD32 frame_len_long, WORD32 aot);
IA_ERRORCODE ia_enhaacplus_enc_tns_detect(ixheaace_temporal_noise_shaping_data *pstr_tns_data,
ixheaace_temporal_noise_shaping_config tns_config,
FLOAT32 *ptr_scratch_tns, const WORD32 *ptr_sfb_offset,
FLOAT32 *ptr_spectrum, WORD32 sub_blk_num,
WORD32 block_type, WORD32 aot, FLOAT32 *ptr_sfb_energy,
FLOAT32 *ptr_shared_buffer1, WORD32 long_frame_len);
VOID ia_enhaacplus_enc_tns_sync(ixheaace_temporal_noise_shaping_data *pstr_tns_data_dst,
const ixheaace_temporal_noise_shaping_data *pstr_tns_data_src,
const ixheaace_temporal_noise_shaping_config tns_config,
const WORD32 sub_blk_num, const WORD32 block_type);
VOID ia_enhaacplus_enc_tns_encode(ixheaace_temporal_noise_shaping_params *pstr_tns_info,
ixheaace_temporal_noise_shaping_data *pstr_tns_data,
WORD32 num_sfb,
ixheaace_temporal_noise_shaping_config tns_config,
WORD32 lowpass_line, FLOAT32 *ptr_spectrum,
WORD32 sub_blk_num, WORD32 block_type,
ixheaace_temporal_noise_shaping_tables *pstr_tns_tab);
VOID ia_enhaacplus_enc_apply_tns_mult_table_to_ratios(WORD32 startCb, WORD32 stopCb,
FLOAT32 *thresholds);
VOID ia_enhaacplus_enc_calc_weighted_spectrum(FLOAT32 *ptr_spectrum, FLOAT32 *ptr_weighted_spec,
FLOAT32 *ptr_sfb_energy,
const WORD32 *ptr_sfb_offset, WORD32 lpc_start_line,
WORD32 lpc_stop_line, WORD32 lpc_start_band,
WORD32 lpc_stop_band, FLOAT32 *ptr_shared_buffer1,
WORD32 aot);
VOID ia_enhaacplus_enc_auto_correlation(const FLOAT32 *ptr_input, FLOAT32 *ptr_corr,
WORD32 samples, WORD32 corr_coeff);
VOID ia_enhaacplus_enc_analysis_filter_lattice(const FLOAT32 *ptr_signal, WORD32 num_lines,
const FLOAT32 *ptr_par_coeff, WORD32 order,
FLOAT32 *ptr_output);
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