107 lines
3.7 KiB
C
107 lines
3.7 KiB
C
/******************************************************************************
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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 IXHEAACD_LPP_TRAN_H
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#define IXHEAACD_LPP_TRAN_H
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#define MAX_NUM_PATCHES 6
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#define GUARDBANDS 0
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#define SHIFT_START_SB 1
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typedef struct {
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WORD32 phi_11;
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WORD32 phi_22;
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WORD32 phi_01;
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WORD32 phi_02;
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WORD32 phi_12;
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WORD32 phi_01_im;
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WORD32 phi_02_im;
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WORD32 phi_12_im;
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WORD32 d;
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} ixheaacd_lpp_trans_cov_matrix;
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typedef struct {
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WORD16 src_start_band;
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WORD16 src_end_band;
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WORD16 guard_start_band;
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WORD16 dst_start_band;
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WORD16 dst_end_band;
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WORD16 num_bands_in_patch;
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} ia_patch_param_struct;
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typedef struct {
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WORD16 num_columns;
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WORD16 num_patches;
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WORD16 start_patch;
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WORD16 stop_patch;
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WORD16 bw_borders[MAX_NUM_NOISE_VALUES];
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ia_patch_param_struct str_patch_param[MAX_NUM_PATCHES];
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} ia_transposer_settings_struct;
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typedef struct {
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ia_transposer_settings_struct *pstr_settings;
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WORD32 bw_array_prev[MAX_NUM_PATCHES];
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WORD32 *lpc_filt_states_real[LPC_ORDER];
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WORD32 *lpc_filt_states_imag[LPC_ORDER];
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} ia_sbr_hf_generator_struct;
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VOID ixheaacd_low_pow_hf_generator(
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ia_sbr_hf_generator_struct *hf_generator, WORD32 **qmf_buff_re,
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WORD16 *degree_alias, WORD first_slot_offset, WORD last_slot_offset,
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WORD num_if_bands, WORD max_qmf_subband_aac, WORD32 *sbr_invf_mode,
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WORD32 *sbr_invf_mode_prev, WORD32 norm_max, WORD32 *ptr_qmf_matrix);
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VOID ixheaacd_hf_generator(ia_sbr_hf_generator_struct *hf_generator,
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ia_sbr_scale_fact_struct *sbr_scale_factor,
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WORD32 **qmf_buff_re, WORD32 **qmf_buff_im,
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WORD time_step, WORD first_slot_offset,
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WORD last_slot_offset, WORD num_if_bands,
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WORD max_qmf_subband_aac, WORD32 *sbr_invf_mode,
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WORD32 *sbr_invf_mode_prev, WORD32 *ptr_qmf_matrix,
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WORD audio_object_type);
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VOID ixheaacd_invfilt_level_emphasis(ia_sbr_hf_generator_struct *hf_generator,
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WORD32 num_if_bands, WORD32 *sbr_invf_mode,
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WORD32 *sbr_invf_mode_prev,
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WORD32 *bw_array);
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struct ixheaacd_lpp_trans_patch {
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WORD32 num_patches;
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WORD32 start_subband[MAX_NUM_PATCHES + 1];
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};
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VOID ixheaacd_covariance_matrix_calc_dec(
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WORD32 *sub_sign_xlow, ixheaacd_lpp_trans_cov_matrix *cov_matrix,
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WORD32 count);
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VOID ixheaacd_covariance_matrix_calc_armv7(
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WORD32 *sub_sign_xlow, ixheaacd_lpp_trans_cov_matrix *cov_matrix,
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WORD32 count);
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VOID ixheaacd_covariance_matrix_calc_2_dec(
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ixheaacd_lpp_trans_cov_matrix *cov_matrix, WORD32 *real_buffer,
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WORD32 ixheaacd_num_bands, WORD16 slots);
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VOID ixheaacd_covariance_matrix_calc_2_armv7(
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ixheaacd_lpp_trans_cov_matrix *cov_matrix, WORD32 *real_buffer,
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WORD32 ixheaacd_num_bands, WORD16 slots);
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#endif /* IXHEAACD_LPP_TRAN_H */
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