1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
/*
* 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.
*/
#ifndef GSM_H
#define GSM_H
#include <stdio.h> /* for FILE * */
/*
* 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
gsm gsm_create (void);
/* Added for libsndfile : May 6, 2002 */
void gsm_init (gsm);
void gsm_destroy (gsm);
int gsm_print (FILE *, gsm, gsm_byte *);
int gsm_option (gsm, int, int *);
void gsm_encode (gsm, gsm_signal *, gsm_byte *);
int gsm_decode (gsm, gsm_byte *, gsm_signal *);
int gsm_explode (gsm, gsm_byte *, gsm_signal *);
void gsm_implode (gsm, gsm_signal *, gsm_byte *);
#endif /* GSM_H */
|
