/*
  * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische
  * Universitaet Berlin.  See the accompanying file "COPYRIGHT" for
  * details.  THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE.
  */
 
 /*$Header: /home/kbs/jutta/src/gsm/gsm-1.0/inc/RCS/gsm.h,v 1.11 1996/07/05 18:02:56 jutta Exp $*/
 
 #ifndef	GSM_H
 #define	GSM_H
 
 #ifdef __cplusplus
 #	define	NeedFunctionPrototypes	1
 #endif
 
 #if __STDC__
 #	define	NeedFunctionPrototypes	1
 #endif
 
 #ifdef _NO_PROTO
 #	undef	NeedFunctionPrototypes
 #endif
 
 #ifdef NeedFunctionPrototypes
 #   include	<stdio.h>		/* for FILE * 	*/
 #endif
 
 #undef GSM_P
 #if NeedFunctionPrototypes
 #	define	GSM_P( protos )	protos
 #else
 #	define  GSM_P( protos )	( /* protos */ )
 #endif
 
 /*
  *	Interface
  */
 
 typedef struct gsm_state * 	gsm;
 typedef short		   	gsm_signal;		/* signed 16 bit */
 typedef unsigned char		gsm_byte;
 typedef gsm_byte 		gsm_frame[33];		/* 33 * 8 bits	 */
 
 #define	GSM_MAGIC		0xD		  	/* 13 kbit/s RPE-LTP */
 
 #define	GSM_PATCHLEVEL		10
 #define	GSM_MINOR		0
 #define	GSM_MAJOR		1
 
 #define	GSM_OPT_VERBOSE		1
 #define	GSM_OPT_FAST		2
 #define	GSM_OPT_LTP_CUT		3
 #define	GSM_OPT_WAV49		4
 #define	GSM_OPT_FRAME_INDEX	5
 #define	GSM_OPT_FRAME_CHAIN	6
 
 extern gsm  gsm_create 	GSM_P((void));
 extern void gsm_destroy GSM_P((gsm));	
 
 extern int  gsm_print   GSM_P((FILE *, gsm, gsm_byte  *));
 extern int  gsm_option  GSM_P((gsm, int, int *));
 
 extern void gsm_encode  GSM_P((gsm, gsm_signal *, gsm_byte  *));
 extern int  gsm_decode  GSM_P((gsm, gsm_byte   *, gsm_signal *));
 
 extern int  gsm_explode GSM_P((gsm, gsm_byte   *, gsm_signal *));
 extern void gsm_implode GSM_P((gsm, gsm_signal *, gsm_byte   *));
 
 #undef	GSM_P
 
 #endif	/* GSM_H */