main_20ms.h

手机加密通话软件

/* Copyright 2001,2002,2003 NAH6
 * All Rights Reserved
 *
 * Parts Copyright DoD, Parts Copyright Starium
 *
 */
/**************************************************************************
*                                                                         *
* INCLUDE FILE
*		main.h
*
* FUNCTION
*		CELP parameters and variables
*
**************************************************************************/
/* General Constants */

#define F_LEN		160		/* number of speech samples in frame	 	*/
#define NUM_SF		4		/* number of subframes in frame		 	*/
#define SF_LEN		F_LEN/NUM_SF	/* number of speech samples in subframe	 	*/
#define CELP_BITS	144		/* number of bits for CELP parameters 		*/

#define ORDER		10		/* order of LP analysis			 	*/

#define LAMBDA		0		/* HF correction scale factor		 	*/
#define OMEGA		0.994127  	/* Bandwidth expansion for LPC analysis (15 Hz)	*/
#define GAMMA		0.8

#define RES_LEN 	SF_LEN		/* number of residual samples in subframe 	*/

#define ANALYSIS 	11		/* for distinguishing between routines  	*/
#define SYNTHESIS 	22		/*   shared between analysis and synthesis 	*/

#define	TRUE		1
#define FALSE		0

/* Adaptive Codebook Constants */
#define	MIN_DELAY	20		/* minimum adaptvie delay 			*/
#define MAX_DELAY	147		/* maximum adaptive delay 			*/
#define MAX_ACB_TAP	3		/* number of acb taps (filter)			*/
#define ACB_SIZE	MAX_DELAY + SF_LEN
#define MAX_NUM_ADAPT	256		/* maximum number of adaptive delays 		*/
#define	MAX_A_LEN	60		/* maximum adaptive frame length		*/
#define MAX_ABUF_LEN	229		/* maximum adaptive analysis buffer length	*/
#define	AGAIN_BITS1	8		/* adaptive gain coding bit allocation		*/
#define	AGAIN_BITS2	6		/* adaptive gain coding bit allocation		*/
#define	AGAIN_BITS3	5		/* adaptive gain coding bit allocation		*/
#define	AGAIN_BITS4	0		/* adaptive gain coding bit allocation		*/
#define	AGAIN_BITS5	0		/* adaptive gain coding bit allocation		*/
#define NUM_FULL_ADELAYS 256		/* 2**AGAIN_BITS1 -- number of full search pitch delays	*/
#define NUM_DELTA_ADELAYS 64		/* 2**AGAIN_BITS2 -- number of delta search pitch delays*/
#define B_PTR 		MAX_DELAY + 2*SF_LEN 

/*  Stochastic Codebook Constants */
#define MAX_STOCH_CB_SIZE 512		/* maximum stochastic code book size (number of codewords)	*/
#define STOCH_CB_SIZE	512		/* actual stochastic code book size 		*/

#define LOG		111

#define STOCH_GAIN_BITS	5		/* code book gain bit allocation 		*/
#define STOCH_QUAN_TYPE LOG		/* code book gain quantizer type		*/
#define MAX_CW_VEC_LEN	60		/* maximum codeword vector length		*/

/* Delay constants */
#define MAX_M1		20	/* values for longest delay calculation */
#define MAX_M2		19
#define	MAX_WINDOW_WIDTH 12*MAX_M1 + 12*(MAX_M2+1)
#define	MAX_NFRAC	5


/*  Quantization constants */
#define	LSFTABLE_LENGTH	ORDER
#define LSFTABLE_WIDTH	16

/*  Channel constants */
#define	CLEAR	9000
#define	RBER	9001
#define	RBLER	9005
#define	OTHER	9006

#define	BINARY	0x011
#define	HEX	0x111



#define min(A,B)        ((A)<(B)?(A):(B))
#define max(A,B)        ((A)>(B)?(A):(B))




typedef struct	{
	float	lsf[11];
	float	AdaptiveDelay[4];
	float	AdaptiveGain[4];
	int	StochasticIndex[4];
	float	StochasticGain[4];
} TX_PARAM;

typedef struct	{
	int	lsf[10];
	int	AdaptiveDelay[4];
	int	AdaptiveGain[4];
	int	StochasticIndex[4];
	int	StochasticGain[4];
	int	Bishnu;
	int	Hamming;
	int	Sync;
} TX_BITS;

typedef struct	{
	int	WhoKnows;
	short	What;
	float	ThisShouldBe;
} INTEGRITY;