g729ev_tdac_bitalloc.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_BITALLOC_H__
#define __G729EV_TDAC_BITALLOC_H__

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


/*********************************************************************/
/* words for bitstream packing*/
/*********************************************************************/

/* Functions : */
void      G729EV_TDAC_sort_ip(Word16 * ip, Word16 nb_ssb, Word16 * pos);
void      G729EV_TDAC_calc_nbit_total(Word16 nb_sb, const Word16 * nb_coef, Word16 * ip, Word16 lam,
                                      Word16 * nbit_total, Word16 * bit_alloc);

void      G729EV_TDAC_allocbit(Word16 * bit_alloc,
                               Word16 nbit_max, Word16 * ip, Word16 nb_sb, const Word16 * nb_coef, Word16 * ord_b);
/* Tables : */

extern const Word16 G729EV_TDAC_nb_coef_div[G729EV_TDAC_NB_SB];
extern const Word16 G729EV_TDAC_nb_coef[G729EV_TDAC_NB_SB];


#endif  /*__G729EV_TDAC_BITALLOC_H__ */