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diff --git a/audio_codec/libamr/dec_lpc.h b/audio_codec/libamr/dec_lpc.h new file mode 100644 index 0000000..a58a755 --- a/dev/null +++ b/audio_codec/libamr/dec_lpc.h @@ -0,0 +1,25 @@ +/* + *=================================================================== + * 3GPP AMR Wideband Floating-point Speech Codec + *=================================================================== + */ +#ifndef DEC_LPC_H +#define DEC_LPC_H + +#include "typedef.h" + +void D_LPC_isf_noise_d(Word16 *indice, Word16 *isf_q); +void D_LPC_isf_isp_conversion(Word16 isf[], Word16 isp[], Word16 m); +void D_LPC_isp_a_conversion(Word16 isp[], Word16 a[], Word32 adaptive_scaling, + Word16 m); +void D_LPC_a_weight(Word16 a[], Word16 ap[], Word16 gamma, Word16 m); +void D_LPC_isf_2s3s_decode(Word16 *indice, Word16 *isf_q, Word16* past_isfq, + Word16 *isfold, Word16 *isf_buf, Word16 bfi); +void D_LPC_isf_2s5s_decode(Word16 *indice, Word16 *isf_q, Word16 *past_isfq, + Word16 *isfold, Word16 *isf_buf, Word16 bfi); +void D_LPC_int_isp_find(Word16 isp_old[], Word16 isp_new[], + const Word16 frac[], Word16 Az[]); +void D_LPC_isf_extrapolation(Word16 HfIsf[]); + +#endif + |