g729ev_main_oper_32b.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_MAIN_OPER_32B_H__
#define __G729EV_MAIN_OPER_32B_H__

#include "stl.h"

/* Double precision operations */

void      L_Extract(Word32 L_32, Word16 * hi, Word16 * lo);
Word32    L_Comp(Word16 hi, Word16 lo);
Word32    Mpy_32(Word16 hi1, Word16 lo1, Word16 hi2, Word16 lo2);
Word32    Mpy_32_16(Word16 hi, Word16 lo, Word16 n);
Word32    Div_32(Word32 L_num, Word16 denom_hi, Word16 denom_lo);

UWord32   UL_add(UWord32 a, UWord32 b);
void      UL_sub(UWord32 a, UWord32 b, UWord32 * c, UWord16 * sgn);
UWord32   UL_shl(UWord32 a, Word16 b);

#endif /* __G729EV_MAIN_OPER_32B_H__ */