macro.h

完整的EVRC压缩解压缩算法源码,通过C-C++编译后可以运行!

/**********************************************************************
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referred to individually as "Source" or collectively as "Sources") do 
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To the extent to which the Source(s) may legally and freely do so, the 
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Project 2 (3GPP2) and its Organizational Partners: ARIB, CCSA, TIA, TTA, 
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perform, display and distribute the Contribution and derivative works 
thereof consistent with 3GPP2's and each Organizational Partner's 
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rights consistent with 3GPP2's and each Organizational Partner's  policies 
and procedures and (ii) copyright and sell, if applicable) in 3GPP2's name 
or each Organizational Partner's name any 3GPP2 or transposed Publication 
even though this Publication may contain the Contribution or a derivative 
work thereof.  The Contribution shall disclose any known limitations on 
the Source's rights to license as herein provided.

When a Contribution is submitted by the Source(s) to assist the 
formulating groups of 3GPP2 or any of its Organizational Partners, it 
is proposed to the Committee as a basis for discussion and is not to 
be construed as a binding proposal on the Source(s).  The Source(s) 
specifically reserve(s) the right to amend or modify the material 
contained in the Contribution. Nothing contained in the Contribution 
shall, except as herein expressly provided, be construed as conferring 
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With respect to the Software necessary for the practice of any or 
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*******************************************************************/
 
/*======================================================================*/
/*     Enhanced Variable Rate Codec - Bit-Exact C Specification         */
/*     Copyright (C) 1997-1998 Telecommunications Industry Association. */
/*     All rights reserved.                                             */
/*----------------------------------------------------------------------*/
/* Note:  Reproduction and use of this software for the design and      */
/*     development of North American Wideband CDMA Digital              */
/*     Cellular Telephony Standards is authorized by the TIA.           */
/*     The TIA does not authorize the use of this software for any      */
/*     other purpose.                                                   */
/*                                                                      */
/*     The availability of this software does not provide any license   */
/*     by implication, estoppel, or otherwise under any patent rights   */
/*     of TIA member companies or others covering any use of the        */
/*     contents herein.                                                 */
/*                                                                      */
/*     Any copies of this software or derivative works must include     */
/*     this and all other proprietary notices.                          */
/*======================================================================*/
/*  Module:     macro.h                                                 */
#ifndef  _MACRO_H_
#define  _MACRO_H_

/* #define UNIX */

/* Macros */
#define  Min(a,b) (a<b ? a:b)
#define  Max(a,b) (a>b ? a:b)
#define  Sign(Z) ((Z) < 0 ? -1l : 1l)
#define  UNIX_DEBUG(x)
#define  SPACING   9

/* includes */
#include <stdlib.h>
//#include <math.h>
#include <stdio.h>
#include <fcntl.h>

/* generic definitions */
#define FALSE 0
#define TRUE 1

/* user function definition */
#include "proto.h"

/* speech coder parameters */
#define FrameSize   160     /* CELP frame size */
#define NoOfSubFrames 3     /* Number of sub frames in one frame     */
#define SubFrameSize  54
#define HPMEMORY      FrameSize+SubFrameSize

/* Memory required for HPspeech array    */

#define ORDER         10    /* LPC order                             */
#define MIN_LSP_SEP   261       /* (64Hz=0.05/(2*PI)*32767 Min. LSP Separation */
#define GAMMA1        29491 /*0.9*/ /* Weighting filter fraction coefficient */
#define GAMMA2        16384 /*0.5*/ /* Weighting filter fraction coefficient (>.5 muffled)*/

#define maxFCBGainSize  32  /* Size of fcb scalar gain (8k,=16 for 4k*/
#define ACBGainSize   8     /* Size of acb scalar gain               */

#define Hlength       SubFrameSize  /* Length of impulse response       */
#define ACBMemSize    128   /* Size of adaptive c.b. memory          */
#define PACKWDSNUM    11    /* Without one word for frame erasure signaling */
#define PACKBYTESNUM  16

#define _Gamma_4      32571  /*0.994*/

/* Post filter definitions */
#define ALPHA         18678  /*0.57*/   /* Short term post filter parameter (whiten formants)*/
#define BETA          24576  /*0.75*/   /* Short term post filter parameter (boost formants)*/
#define U             6554 /*0.20*/ /* Spectral tilt (orig=.2, >.2 clear, <.2 muffled)*/
#define AGC           27853 /*0.85*/    /* AGC factor                       */
#define LTGAIN        16384 /*0.50*/    /* Long term post filter gain       */

/* Post filter defines for half rate */
#define HALF_ALPHA    16384 /*0.50*/    /* Short term post filter parameter (whiten formants)*/
#define HALF_U        11469 /*0.35*/    /* Spectral tilt (orig=.2, >.2 clear, <.2 muffled)*/

/* Rcelp parameters */
#define GUARD          80   /* Guard buffers for RCELP          */
#define RRESOLUTION    8    /* Jitter resolution                */
#define RSHIFT         3    /* Search boundary                  */
#define DMIN          20    /* Minimum delay                    */
#define DMAX         120    /* Maximum delay                    */
#define BLPRECISION    8    /* Interpolation filter taps        */
#define BLFREQ       29491 /*0.9*/  /* Cut-off filter frequency         */
#define EXTRA         10    /* Extra samples calc. in exc.      */

#endif