mirror of
https://github.com/ittiam-systems/libxaac.git
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088122e748
* Combined Workspace for Encoder and Decoder * Addressed review comments and some minor edits --------- Co-authored-by: Divya B M <100655@ittiam.com>
81 lines
3.3 KiB
C
81 lines
3.3 KiB
C
/******************************************************************************
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* *
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* Copyright (C) 2023 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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#pragma once
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#define COUPLING_1 (1)
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typedef struct {
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WORD32 offset;
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WORD32 update;
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WORD32 num_scf[2];
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WORD32 sfb_nrg_prev[MAXIMUM_FREQ_COEFFS];
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WORD32 delta_t_across_frames;
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FLOAT32 df_edge_1st_env;
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FLOAT32 df_edge_incr;
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WORD32 df_edge_incr_fac;
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WORD32 code_book_scf_lav_time;
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WORD32 code_book_scf_lav_freq;
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WORD32 code_book_scf_lav_lvl_time;
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WORD32 code_book_scf_lav_lvl_freq;
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WORD32 code_book_scf_lav_bal_time;
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WORD32 code_book_scf_lav_bal_freq;
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WORD32 start_bits;
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WORD32 start_bits_balance;
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const UWORD8 *ptr_huff_tab_time_l;
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const UWORD8 *ptr_huff_tab_freq_l;
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const UWORD8 *ptr_huff_tab_lvl_time_l;
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const UWORD8 *ptr_huff_tab_bal_time_l;
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const UWORD8 *ptr_huff_tab_lvl_freq_l;
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const UWORD8 *ptr_huff_tab_bal_freq_l;
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} ixheaace_str_sbr_code_envelope;
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typedef ixheaace_str_sbr_code_envelope *ixheaace_pstr_sbr_code_envelope;
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struct ixheaace_str_sbr_env_data;
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IA_ERRORCODE ixheaace_code_envelope(WORD32 *ptr_sfb_energy, const ixheaace_freq_res *freq_res,
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ixheaace_str_sbr_code_envelope *pstr_code_env,
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WORD32 *ptr_dir_vec, WORD32 coupling, WORD32 num_envelopes,
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WORD32 channel, WORD32 header_active, WORD32 usac_indep_flag,
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WORD32 is_ld_sbr);
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VOID ixheaace_create_sbr_code_envelope(ixheaace_pstr_sbr_code_envelope pstr_code_env,
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WORD32 *num_sfb, WORD32 delta_t_across_frames,
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FLOAT32 df_edge_first_env, FLOAT32 df_edge_incr);
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IA_ERRORCODE
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ixheaace_init_sbr_huffman_tabs(struct ixheaace_str_sbr_env_data *pstr_sbr_env,
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ixheaace_pstr_sbr_code_envelope pstr_code_env,
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ixheaace_pstr_sbr_code_envelope pstr_noise,
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ixheaace_amp_res amp_res,
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ixheaace_str_sbr_huff_tabs *pstr_sbr_huff_tabs);
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VOID ixheaace_map_low_res_energy_value(WORD32 curr_val, WORD32 *ptr_prev_data, WORD32 offset,
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WORD32 index, ixheaace_freq_res res);
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IA_ERRORCODE
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ixheaace_compute_bits(WORD32 delta, WORD32 code_book_scf_lav_lvl,
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WORD32 code_book_scf_lav_balance, const UWORD8 *ptr_huff_tbl_lvl,
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const UWORD8 *ptr_huff_tbl_bal, WORD32 coupling, WORD32 ch,
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WORD32 *ptr_delta_bits);
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