g729ev_celp2s_decod.h

最新的ITU-T的宽带语音编解码标准G.729.1,是对原先的G.729的最好的调整.码流输出速率可以进行自适应调整.满足未来通信要求.希望对大家有所帮助.

/* ITU-T G.729EV Optimization/Characterization Candidate                         */
/* Version:       1.0.a                                                          */
/* Revision Date: June 28, 2006                                                  */

/*
   ITU-T G.729EV Optimization/Characterization Candidate    ANSI-C Source Code
   Copyright (c) 2006 
   France Telecom, Matsushita Electric, Mindspeed, Siemens AG, ETRI, VoiceAge Corp.
   All rights reserved
*/



#ifndef __G729EV_G729_DECODE_H__
#define __G729EV_G729_DECODE_H__

#include "G729EV_CELP2S.h"

#include "G729EV_CELP2S_qua_gain.h"
#include "G729EV_G729_DecStat.h"
#include "G729EV_G729_ld8k.h"
#include "G729EV_FEC_fer.h"

/* Functions */
void      G729EV_CELP2S_InitDecoder(G729EV_G729_DECSTAT * pDecStat, Word16 g729b_bst);
void      G729EV_CELP2S_decoder(G729EV_G729_DECSTAT * pDecStat,
                                Word16 * coder_parameters,
                                Word16 nbytes,
                                Word16 SubFrNum,
                                G729EV_CELP2S_PARAM * nb_celp_param,
                                Word16 * BfAq,
                                Word16 * coreExc, Word16 * extExc, Word16 * pitch_buf, Word16 clas, Word16 bfi);

void      G729EV_G729_syn(Word16 * exc_core,    /* (i)  : 8kbits core excitation              */
                           Word16 * exc_ext,    /* (i)  : 12kbits  core excitation  extention */
                           Word16 * exc_mem,    /* (i)  : 12kbits  core excitation  extention */
                           Word16 * BfAq,       /* (i)  : LPC coefficient filter              */
                           Word16 * synth,      /* (o)  : Synthesis buffer                    */
                           Word16 * mem_syn,    /* (i/o): synthesis memory buffer             */
                           Word16 extrate       /* (i)  : Extension bit rate                  */
    );

void      G729EV_CELP2S_Decod_ACELP(Word16 sign, Word16 index, Word16 sp, Word16 cod[]  /* (o) Q13 */
    );
void      G729EV_CELP2S_Decod_pos_sig(Word16 index, Word16 sign, Word16 pos[], Word16 si[]);
void      G729EV_CELP2S_Put4Patterns(Word16 pos[], Word16 si[], Word16 sp, Word16 cod[]);

/* Tables */

#endif  /*__G729EV_G729_DECODE_H__ */