autocorr.h

AMR-NB 的编码实现,纯C, VC下建立工程即可用.

/*******************************************************************************
*
*      File                 : autocorr.h
*      Purpose          : Compute autocorrelations of signal with windowing
*
*********************************************************************************/

#ifndef AUTOCORR_H
#define AUTOCORR_H
 
#include "AmrCode_Comm.h"

Word16 Autocorr ( Word16 x[], Word16 m,   Word16 r_h[], Word16 r_l[], const Word16 wind[]);
void Az_lsp ( Word16 a[], Word16 lsp[],  Word16 old_lsp[] );                                                                   
void cor_h_x2 (Word16 h[], Word16 x[],  Word16 dn[],  Word16 sf,  Word16 nb_track,Word16 step  );
void cor_h ( Word16 h[], Word16 sign[],Word16 rr[][L_CODE]);
void comp_corr (Word16 scal_sig[], Word16 L_frame,  Word16 lag_max,Word16 lag_min, Word32 corr[] );
void Convolve ( Word16 x[],  Word16 h[],  Word16 y[],  Word16 L );
int pre_big( Mode mode,  const Word16 gamma1[],  const Word16 gamma1_12k2[], const Word16 gamma2[],Word16 A_t[],  Word16 frameOffset,Word16 speech[], Word16 mem_w[], Word16 wsp[] );
void Residu (Word16 a[],  Word16 x[], Word16 y[],  Word16 lg );
void Syn_filt ( Word16 a[],  Word16 x[],  Word16 y[],Word16 lg,Word16 mem[], Word16 update);

 
#endif