67 lines
3.9 KiB
C
67 lines
3.9 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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VOID iusace_autocorr_plus(FLOAT32 *speech, FLOAT32 *auto_corr_vector, WORD32 window_len,
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const FLOAT32 *lp_analysis_win, FLOAT32 *temp_aut_corr);
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VOID iusace_compute_lp_residual(FLOAT32 *a, FLOAT32 *x, FLOAT32 *y, WORD32 l);
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VOID iusace_convolve(FLOAT32 *signal, FLOAT32 *wsynth_filter_ir, FLOAT32 *conv_out);
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VOID iusace_synthesis_tool_float(FLOAT32 *a, FLOAT32 *x, FLOAT32 *y, WORD32 l, FLOAT32 *mem,
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FLOAT32 *buf_synth_tool);
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VOID iusace_apply_preemph(FLOAT32 *signal, FLOAT32 factor, WORD32 length, FLOAT32 *mem);
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VOID iusace_apply_deemph(FLOAT32 *signal, FLOAT32 factor, WORD32 length, FLOAT32 *mem);
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VOID iusace_lpc_2_lsp_conversion(FLOAT32 *lpc, FLOAT32 *lsp, FLOAT32 *prev_lsp);
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VOID iusace_levinson_durbin_algo(FLOAT32 *auto_corr_input, FLOAT32 *lpc);
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VOID iusace_get_weighted_lpc(FLOAT32 *lpc, FLOAT32 *weighted_lpc);
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VOID iusace_lsp_2_lsf_conversion(FLOAT32 *lsp, FLOAT32 *lsf);
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VOID iusace_lsf_2_lsp_conversion(FLOAT32 *lsf, FLOAT32 *lsp);
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VOID iusace_open_loop_search(FLOAT32 *wsp, WORD32 min_pitch_lag, WORD32 max_pitch_lag,
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WORD32 num_frame, WORD32 *ol_pitch_lag,
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ia_usac_td_encoder_struct *st);
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WORD32 iusace_get_ol_lag_median(WORD32 prev_ol_lag, WORD32 *prev_ol_lags);
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VOID iusace_closed_loop_search(FLOAT32 *exc, FLOAT32 *xn, FLOAT32 *wsyn_filt_ir,
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WORD32 search_range_min, WORD32 search_range_max, WORD32 *pit_frac,
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WORD32 is_first_subfrm, WORD32 min_pitch_lag_res1_2,
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WORD32 min_pitch_lag_res_1, WORD32 *pitch_lag_out);
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VOID iusace_decim2_fir_filter(FLOAT32 *signal, WORD32 length, FLOAT32 *mem,
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FLOAT32 *scratch_fir_sig_buf);
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FLOAT32 iusace_calc_sq_gain(FLOAT32 *x, WORD32 num_bits, WORD32 length,
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FLOAT32 *scratch_sq_gain_en);
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VOID iusace_lpc_coef_gen(FLOAT32 *lsf_old, FLOAT32 *lsf_new, FLOAT32 *a, WORD32 nb_subfr,
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WORD32 m);
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VOID iusace_interpolation_lsp_params(FLOAT32 *lsp_old, FLOAT32 *lsp_new, FLOAT32 *lp_flt_coff_a,
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WORD32 nb_subfr);
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VOID iusace_acelp_tgt_ir_corr(FLOAT32 *x, FLOAT32 *ir_wsyn, FLOAT32 *corr_out);
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VOID iusace_acelp_tgt_cb_corr1(FLOAT32 *xn, FLOAT32 *y1, FLOAT32 *y2, FLOAT32 *corr_out);
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FLOAT32 iusace_acelp_tgt_cb_corr2(FLOAT32 *xn, FLOAT32 *y1, FLOAT32 *corr_out);
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VOID iusace_acelp_cb_target_update(FLOAT32 *x, FLOAT32 *x2, FLOAT32 *y, FLOAT32 gain);
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VOID iusace_acelp_cb_exc(FLOAT32 *corr_input, FLOAT32 *lp_residual, FLOAT32 *ir_wsyn,
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WORD16 *alg_cb_exc_out, FLOAT32 *filt_cb_exc, WORD32 num_bits_cb,
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WORD32 *acelp_param_out, FLOAT32 *scratch_acelp_ir_buf);
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VOID iusace_acelp_ltpred_cb_exc(FLOAT32 *exc, WORD32 t0, WORD32 t0_frac, WORD32 len_subfrm);
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VOID iusace_acelp_quant_gain(FLOAT32 *code, FLOAT32 *pitch_gain, FLOAT32 *code_gain,
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FLOAT32 *tgt_cb_corr_data, FLOAT32 mean_energy, WORD32 *qunt_idx);
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