64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
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/******************************************************************************
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*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*****************************************************************************
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* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
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*/
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#ifndef IMPD_DRC_MULTI_BAND_H
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#define IMPD_DRC_MULTI_BAND_H
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#define DRC_SUBBAND_COUNT_WITH_AUDIO_CODEC_FILTERBANK_MAX \
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FILTER_BANK_PARAMETER_COUNT
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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FLOAT32 overlap_weight[AUDIO_CODEC_SUBBAND_COUNT_MAX];
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} ia_band_overlap_params_struct;
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typedef struct {
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ia_band_overlap_params_struct str_band_overlap_params[BAND_COUNT_MAX];
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} ia_group_overlap_params_struct;
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typedef struct {
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ia_group_overlap_params_struct
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str_group_overlap_params[CHANNEL_GROUP_COUNT_MAX];
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} ia_overlap_params_struct;
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VOID impd_fcenter_norm_sb_init(WORD32 num_subbands,
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FLOAT32* fcenter_norm_subband);
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VOID impd_generate_slope(WORD32 num_subbands, FLOAT32* fcenter_norm_subband,
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FLOAT32 fcross_norm_lo, FLOAT32 fcross_norm_hi,
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FLOAT32* response);
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VOID impd_generate_overlap_weights(
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WORD32 num_drc_bands, WORD32 drc_band_type,
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ia_gain_params_struct* gain_params, WORD32 dec_subband_count,
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ia_group_overlap_params_struct* pstr_group_overlap_params);
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VOID impd_init_overlap_weight(
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ia_uni_drc_coeffs_struct* str_p_loc_drc_coefficients_uni_drc,
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ia_drc_instructions_struct* str_drc_instruction_str,
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WORD32 sub_band_domain_mode, ia_overlap_params_struct* pstr_overlap_params);
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#ifdef __cplusplus
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}
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#endif
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#endif
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