gsm610.h

GSM6.10 算法优化及详细注释 本代码较原GSM6.10代码更容易理解 仅供学习

#include <stdio.h> 
#include <string.h>
#include <stdlib.h>


#define GSM_MAGIC       0xD 

typedef struct gsm610_state *   gsm610;
typedef short                   gsm_signal;             /* signed 16 bit */
typedef unsigned char           gsm_byte;
typedef gsm_byte               gsm_frame[33];          /* 33 * 8 bits   */



extern gsm610  gsm610_create  ();
extern void gsm610_destroy (gsm610);   


extern void gsm610_encode  (gsm610, gsm_signal *, gsm_byte  *);
extern void gsm610_decode  (gsm610, gsm_byte   *, gsm_signal *);