EXC_LBC.H
资源名称:G711-729.rar [点击查看]
上传用户:meifeng08
上传日期:2013-06-18
资源大小:5304k
文件大小:2k
源码类别:
语音压缩
开发平台:
C/C++
- /*
- **
- ** File: "exc_lbc.h"
- **
- ** Description: Function prototypes for "exc_lbc.c"
- **
- */
- /*
- ITU-T G.723 Speech Coder ANSI-C Source Code Version 5.00
- copyright (c) 1995, AudioCodes, DSP Group, France Telecom,
- Universite de Sherbrooke. All rights reserved.
- */
- Word16 Estim_Pitch( Word16 *Dpnt, Word16 Start );
- PWDEF Comp_Pw( Word16 *Dpnt, Word16 Start, Word16 Olp );
- void Filt_Pw( Word16 *DataBuff, Word16 *Dpnt, Word16 Start, PWDEF Pw );
- void Find_Fcbk( Word16 *Dpnt, Word16 *ImpResp, LINEDEF *Line, Word16 Sfc );
- void Gen_Trn( Word16 *Dst, Word16 *Src, Word16 Olp );
- void Find_Best( BESTDEF *Best, Word16 *Tv, Word16 *ImpResp, Word16 Np,
- Word16 Olp );
- void Fcbk_Pack( Word16 *Dpnt, SFSDEF *Sfs, BESTDEF *Best, Word16 Np );
- void Fcbk_Unpk( Word16 *Tv, SFSDEF Sfs, Word16 Olp, Word16 Sfc );
- void Find_Acbk( Word16 *Tv, Word16 *ImpResp, Word16 *PrevExc, LINEDEF
- *Line, Word16 Sfc );
- void Get_Rez( Word16 *Tv, Word16 *PrevExc, Word16 Lag );
- void Decod_Acbk( Word16 *Tv, Word16 *PrevExc, Word16 Olp, Word16 Lid,
- Word16 Gid );
- Word16 Comp_Info( Word16 *Buff, Word16 Olp, Word16 *Gain, Word16 *ShGain);
- void Regen( Word16 *DataBuff, Word16 *Buff, Word16 Lag, Word16 Gain,
- Word16 Ecount, Word16 *Sd );
- PFDEF Comp_Lpf( Word16 *Buff, Word16 Olp, Word16 Sfc );
- Word16 Find_B( Word16 *Buff, Word16 Olp, Word16 Sfc );
- Word16 Find_F( Word16 *Buff, Word16 Olp, Word16 Sfc );
- PFDEF Get_Ind( Word16 Ind, Word16 Ten, Word16 Ccr, Word16 Enr );
- void Filt_Lpf( Word16 *Tv, Word16 *Buff, PFDEF Pf, Word16 Sfc );
- void reset_max_time(void);
- Word16 search_T0 ( Word16 T0, Word16 Gid, Word16 *gain_T0);
- Word16 ACELP_LBC_code(Word16 X[], Word16 h[], Word16 T0, Word16 code[],
- Word16 *gain, Word16 *shift, Word16 *sign, Word16 gain_T0);
- void Cor_h(Word16 *H, Word16 *rr);
- void Cor_h_X(Word16 h[], Word16 X[], Word16 D[]);
- Word16 D4i64_LBC(Word16 Dn[], Word16 rr[], Word16 h[], Word16 cod[],
- Word16 y[], Word16 *code_shift, Word16 *sign);
- Word16 G_code(Word16 X[], Word16 Y[], Word16 *gain_q);