74 lines
2.4 KiB
C
74 lines
2.4 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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#ifndef IXHEAACE_MAX_CH_IN_BS_ELE
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#define IXHEAACE_MAX_CH_IN_BS_ELE (2)
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#endif
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#define FRAME_LEN_BYTES_MODULO (1)
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#define FRAME_LEN_BYTES_INT (2)
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typedef struct {
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WORD32 ch_bitrate;
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WORD32 avg_bits;
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WORD32 max_bits;
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WORD32 bit_res_lvl;
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WORD32 max_bitres_bits;
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WORD32 static_bits;
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FLOAT32 max_bit_fac;
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WORD32 tot_avg_bits;
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WORD32 padding;
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ia_adj_thr_state_struct str_adj_thr;
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ia_adj_thr_elem_struct str_adj_thr_ele;
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WORD8 num_ch;
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} ia_qc_data_struct;
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typedef struct {
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WORD16 quant_spec[LEN_SUPERFRAME];
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UWORD16 max_val_in_sfb[LEN_SUPERFRAME];
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WORD16 scalefactor[LEN_SUPERFRAME];
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WORD32 global_gain;
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} ia_qc_out_chan_struct;
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typedef struct {
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ia_qc_out_chan_struct str_qc_out_chan[IXHEAACE_MAX_CH_IN_BS_ELE];
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WORD32 static_bits;
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WORD32 dyn_bits;
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WORD32 fill_bits;
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FLOAT32 pe;
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} ia_qc_out_data_struct;
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typedef struct {
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ia_qc_data_struct str_qc_data[IXHEAACE_MAX_CH_IN_BS_ELE];
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ia_qc_out_data_struct str_qc_out;
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} ia_qc_main_struct;
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VOID iusace_qc_create(ia_qc_main_struct *pstr_qc_data);
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VOID iusace_qc_init(ia_qc_data_struct *pstr_qc_data, const WORD32 max_bits, WORD32 sample_rate,
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WORD32 bw_limit, WORD32 channels, WORD32 ccfl);
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VOID iusace_adj_bitrate(ia_qc_data_struct *pstr_qc_data, WORD32 bit_rate, WORD32 sample_rate,
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WORD32 ccfl);
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WORD32 iusace_calc_max_val_in_sfb(WORD32 sfb_count, WORD32 max_sfb_per_grp, WORD32 sfb_per_group,
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WORD32 *ptr_sfb_offset, WORD16 *ptr_quant_spec);
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