/
output.h
75 lines (57 loc) · 2.22 KB
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
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
/*
TiMidity -- Experimental MIDI to WAVE converter
Copyright (C) 1995 Tuukka Toivonen <toivonen@clinet.fi>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
output.h
*/
/* Data format encoding bits */
#define PE_MONO 0x01 /* versus stereo */
#define PE_SIGNED 0x02 /* versus unsigned */
#define PE_16BIT 0x04 /* versus 8-bit */
#define PE_ULAW 0x08 /* versus linear */
#define PE_BYTESWAP 0x10 /* versus the other way */
typedef struct {
int32 rate, encoding;
char *id_name;
} PlayMode;
extern PlayMode *play_mode_list[], *play_mode;
extern int init_buffers(int kbytes);
/* Conversion functions -- These overwrite the int32 data in *lp with
data in another format */
/* The size of the output buffers */
extern int AUDIO_BUFFER_SIZE;
/* Actual copy function */
extern void (*s32tobuf)(void *dp, int32 *lp, int32 c);
/* 8-bit signed and unsigned*/
extern void s32tos8(void *dp, int32 *lp, int32 c);
extern void s32tou8(void *dp, int32 *lp, int32 c);
/* 16-bit */
extern void s32tos16(void *dp, int32 *lp, int32 c);
extern void s32tou16(void *dp, int32 *lp, int32 c);
/* byte-exchanged 16-bit */
extern void s32tos16x(void *dp, int32 *lp, int32 c);
extern void s32tou16x(void *dp, int32 *lp, int32 c);
/* uLaw (8 bits) */
extern void s32toulaw(void *dp, int32 *lp, int32 c);
/* little-endian and big-endian specific */
#ifdef LITTLE_ENDIAN
#define s32tou16l s32tou16
#define s32tou16b s32tou16x
#define s32tos16l s32tos16
#define s32tos16b s32tos16x
#else
#define s32tou16l s32tou16x
#define s32tou16b s32tou16
#define s32tos16l s32tos16x
#define s32tos16b s32tos16
#endif