42 lines
1.8 KiB
C++
42 lines
1.8 KiB
C++
/*====================================================================================
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EVS Codec 3GPP TS26.443 Nov 13, 2018. Version 12.11.0 / 13.7.0 / 14.3.0 / 15.1.0
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====================================================================================*/
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#ifndef BASOP_PROTO_FUNC_H
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#define BASOP_PROTO_FUNC_H
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#include "stl.h"
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#include "basop_util.h"
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namespace evs {
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/* tcx_lpc_cdk.h */
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#define LSF_GAP_VAL(x) (Word16)((x)*2.0f*1.28f)
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#define LSFM(x) FL2WORD16_SCALE(x*1.28, 15-1) /* 14Q1*1.28 */
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/* cnst.h */
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#define GAMMA1_INV 17809 /* weighting factor (numerator) default:0.92 (1Q14format) */
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#define GAMMA16k_INV 17430 /* weighting factor (numerator) default:0.94 (1Q14format) */
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#define FS_2 16384 /* isf max value (Use in reorder_fx.c) */
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#define INT_FS_FX 12800 /* internal sampling frequency */
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void basop_lsp2a_stab(const Word16 *lsp, Word16 *a);
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void basop_lsf2lsp(const Word16 lsf[], Word16 lsp[]);
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void basop_weight_a(const Word16 *a, Word16 *ap, const Word16 gamma);
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void basop_weight_a_inv(const Word16 *a, Word16 *ap, const Word16 inv_gamma);
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void basop_E_LPC_a_add_tilt(const Word16 *a, Word16 *ap, Word16 gamma);
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void basop_reorder_lsf(Word16 *lsf, const Word16 min_dist, const Word16 n, const Word32 fs);
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void basop_E_LPC_f_lsp_a_conversion(const Word16 *lsp, Word16 *a, const Word16 m);
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/* tcx_utils.c */
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void basop_lpc2mdct(Word16 *lpcCoeffs, Word16 lpcOrder,
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Word16 *mdct_gains, Word16 *mdct_gains_exp,
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Word16 *mdct_inv_gains, Word16 *mdct_inv_gains_exp);
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void basop_PsychAdaptLowFreqDeemph(Word32 x[], const Word16 lpcGains[], const Word16 lpcGains_e[], Word16 lf_deemph_factors[]);
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void basop_mdct_noiseShaping_interp(Word32 x[], Word16 lg, Word16 gains[], Word16 gains_exp[]);
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} // end of namespace
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#endif
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