26 lines
1.0 KiB
C
26 lines
1.0 KiB
C
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/*
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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 DEC_LPC_H
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#define DEC_LPC_H
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#include "typedef.h"
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void D_LPC_isf_noise_d(Word16 *indice, Word16 *isf_q);
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void D_LPC_isf_isp_conversion(Word16 isf[], Word16 isp[], Word16 m);
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void D_LPC_isp_a_conversion(Word16 isp[], Word16 a[], Word32 adaptive_scaling,
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Word16 m);
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void D_LPC_a_weight(Word16 a[], Word16 ap[], Word16 gamma, Word16 m);
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void D_LPC_isf_2s3s_decode(Word16 *indice, Word16 *isf_q, Word16* past_isfq,
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Word16 *isfold, Word16 *isf_buf, Word16 bfi);
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void D_LPC_isf_2s5s_decode(Word16 *indice, Word16 *isf_q, Word16 *past_isfq,
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Word16 *isfold, Word16 *isf_buf, Word16 bfi);
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void D_LPC_int_isp_find(Word16 isp_old[], Word16 isp_new[],
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const Word16 frac[], Word16 Az[]);
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void D_LPC_isf_extrapolation(Word16 HfIsf[]);
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#endif
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