www.pudn.com > T-REC-G.722.1-200505-I!!SOFT-ZST-E.zip > defs.h

/***************************************************************** 
****************************************************************** 
** 
**   ITU-T Wideband Coder Candidate (G.WB) Source Code 
** 
**	   File Name : defs.h 
** 
**   © 2000 PictureTel Coporation 
**          Andover, MA, USA   
** 
**	    All rights reserved. 
** 
****************************************************************** 
*****************************************************************/ 
 
#define  PI  3.141592653589793238462 
 
#define MAX_DCT_SIZE 640 
 
#define MAX(a,b) (a > b ? a : b) 
#define MIN(a,b) (a < b ? a : b) 
 
#define MAX_NUM_REGIONS 28  
 
#define NUM_REGIONS 14 
 
#define REGION_POWER_TABLE_SIZE 64 
#define REGION_POWER_TABLE_NUM_NEGATIVES 24 
 
#define MAX_NUM_RATE_CONTROL_BITS 5 
#define MAX_NUM_RATE_CONTROL_POSSIBILITIES 32 
 
#define ENCODER_SCALE_FACTOR 18318.0 
 
/* The MLT output is incorrectly scaled by the factor 
   product of ENCODER_SCALE_FACTOR and sqrt(160.) 
   This is now (9/30/96) 1.0/2^(4.5) or 1/22.627. 
   In the current implementation this product 
   must be an integer power of sqrt(2). The 
   integer power is ESF_ADJUSTMENT_TO_RMS_INDEX. 
   The -2 is to conform with the range defined in the spec. */ 
 
/* 
** This value has been changed for fixed point interop  
*/ 
#define ESF_ADJUSTMENT_TO_RMS_INDEX (9-2) // changed from (-2) 
 
#define INTERMEDIATE_FILES_FLAG 0 
 
/* Max bit rate is now 48000 bits/sec. */ 
 
#define MAX_BITS_PER_FRAME 960