blob: f59cff3c2bca40702695db653aa284bb5077710f (
plain)
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
|
/* Copyright (c) 1997- Guenter Geiger, Miller Puckette, Larry Troxler,
* Winfried Ritsch, Karl MacMillan, and others.
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */
typedef int16_t t_alsa_sample16;
typedef int32_t t_alsa_sample32;
#define ALSA_SAMPLEWIDTH_16 sizeof(t_alsa_sample16)
#define ALSA_SAMPLEWIDTH_32 sizeof(t_alsa_sample32)
#define ALSA_XFERSIZE16 (signed int)(sizeof(t_alsa_sample16) * DEFDACBLKSIZE)
#define ALSA_XFERSIZE32 (signed int)(sizeof(t_alsa_sample32) * DEFDACBLKSIZE)
#define ALSA_MAXDEV 4
#define ALSA_JITTER 1024
#define ALSA_EXTRABUFFER 2048
#define ALSA_DEFFRAGSIZE 64
#define ALSA_DEFNFRAG 12
#ifndef INT32_MAX
#define INT32_MAX 0x7fffffff
#endif
typedef struct _alsa_dev
{
snd_pcm_t *a_handle;
int a_devno;
int a_sampwidth;
int a_channels;
char **a_addr;
int a_synced;
} t_alsa_dev;
extern t_alsa_dev alsa_indev[ALSA_MAXDEV];
extern t_alsa_dev alsa_outdev[ALSA_MAXDEV];
extern int alsa_nindev;
extern int alsa_noutdev;
int alsamm_open_audio(int rate, int blocksize);
void alsamm_close_audio(void);
int alsamm_send_dacs(void);
|
