g729ev_tdac_vq.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_TDAC_QUANTIF_H__
#define __G729EV_TDAC_QUANTIF_H__

#include <stdio.h>
#include "stl.h"


/* Functions : */

void      G729EV_TDAC_quantif(Word16 * ykr, Word16 ** bit, Word16 * nb_niv, Word16 nb_ssb);
void      G729EV_TDAC_dec_VQcoef(UWord32 code, Word16 dim, Word16 * yq);
void      G729EV_TDAC_decod_VQ(Word16 ** bit, Word16 * ykr, Word16 * nb_niv, Word16 * rmsq, Word16 nb_ssb);


/* Tables : */

extern const Word16 G729EV_TDAC_nb_coef_sqrt[G729EV_TDAC_NB_SB];

extern const Word16 G729EV_TDAC_sb_bound[G729EV_TDAC_NB_SB + 1];
extern const Word16 G729EV_TDAC_nb_coef[G729EV_TDAC_NB_SB];

#endif /* __G729EV_TDAC_QUANTIF_H__ */