33 lines
1.4 KiB
C
Executable File
33 lines
1.4 KiB
C
Executable File
/*
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*===================================================================
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* 3GPP AMR Wideband Floating-point Speech Codec
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*===================================================================
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*/
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#ifndef ENC_LPC_H
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#define ENC_LPC_H
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#include "typedef.h"
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void E_LPC_int_isp_find(Word16 isp_old[], Word16 isp_new[],
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const Word16 frac[], Word16 Az[]);
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void E_LPC_f_int_isp_find(Float32 isp_old[], Float32 isp_new[], Float32 a[],
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Word32 nb_subfr, Word32 m);
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void E_LPC_a_weight(Float32 *a, Float32 *ap, Float32 gamma, Word32 m);
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void E_LPC_isf_isp_conversion(Word16 isf[], Word16 isp[], Word16 m);
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Word16 E_LPC_isf_sub_vq(Float32 *x, const Float32 *E_ROM_dico, Word32 dim,
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Word32 E_ROM_dico_size, Float32 *distance);
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void E_LPC_isp_a_conversion(Word16 isp[], Word16 a[], Word16 m);
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void E_LPC_isp_isf_conversion(Float32 isp[], Float32 isf[], Word32 m);
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void E_LPC_lag_wind(Float32 r[], Word32 m);
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void E_LPC_lev_dur(Float32 *a, Float32 *r, Word32 m);
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void E_LPC_a_isp_conversion(Float32 *a, Float32 *isp, Float32 *old_isp,
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Word32 m);
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void E_LPC_isf_2s3s_quantise(Float32 *isf1, Word16 *isf_q, Word16 *past_isfq,
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Word32 *indice, Word32 nb_surv);
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void E_LPC_isf_2s5s_quantise(Float32 *isf1, Word16 *isf_q, Word16 *past_isfq,
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Word32 *indice, Word32 nb_surv);
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#endif
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