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
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
/*
* QEMU Audio subsystem header
*
* Copyright (c) 2003-2005 Vassili Karpov (malc)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef QEMU_AUDIO_H
#define QEMU_AUDIO_H
typedef void (*audio_callback_fn_t) (void *opaque, int avail);
typedef enum {
AUD_FMT_U8,
AUD_FMT_S8,
AUD_FMT_U16,
AUD_FMT_S16
} audfmt_e;
typedef struct SWVoiceOut SWVoiceOut;
typedef struct SWVoiceIn SWVoiceIn;
typedef struct QEMUAudioTimeStamp {
uint64_t old_ts;
} QEMUAudioTimeStamp;
void AUD_vlog (const char *cap, const char *fmt, va_list ap);
void AUD_log (const char *cap, const char *fmt, ...)
#ifdef __GNUC__
__attribute__ ((__format__ (__printf__, 2, 3)))
#endif
;
void AUD_init (void);
void AUD_help (void);
SWVoiceOut *AUD_open_out (
SWVoiceOut *sw,
const char *name,
void *callback_opaque,
audio_callback_fn_t callback_fn,
int freq,
int nchannels,
audfmt_e fmt
);
void AUD_close_out (SWVoiceOut *sw);
int AUD_write (SWVoiceOut *sw, void *pcm_buf, int size);
int AUD_get_buffer_size_out (SWVoiceOut *sw);
void AUD_set_active_out (SWVoiceOut *sw, int on);
int AUD_is_active_out (SWVoiceOut *sw);
void AUD_init_time_stamp_out (SWVoiceOut *sw,
QEMUAudioTimeStamp *ts);
uint64_t AUD_time_stamp_get_elapsed_usec_out (SWVoiceOut *sw,
QEMUAudioTimeStamp *ts);
SWVoiceIn *AUD_open_in (
SWVoiceIn *sw,
const char *name,
void *callback_opaque,
audio_callback_fn_t callback_fn,
int freq,
int nchannels,
audfmt_e fmt
);
void AUD_close_in (SWVoiceIn *sw);
int AUD_read (SWVoiceIn *sw, void *pcm_buf, int size);
void AUD_adjust_in (SWVoiceIn *sw, int leftover);
void AUD_set_active_in (SWVoiceIn *sw, int on);
int AUD_is_active_in (SWVoiceIn *sw);
void AUD_init_time_stamp_in (SWVoiceIn *sw,
QEMUAudioTimeStamp *ts);
uint64_t AUD_time_stamp_get_elapsed_usec_in (SWVoiceIn *sw,
QEMUAudioTimeStamp *ts);
static inline void *advance (void *p, int incr)
{
uint8_t *d = p;
return (d + incr);
}
uint32_t popcount (uint32_t u);
inline uint32_t lsbindex (uint32_t u);
#ifdef __GNUC__
#define audio_MIN(a, b) ( __extension__ ({ \
__typeof (a) ta = a; \
__typeof (b) tb = b; \
((ta)>(tb)?(tb):(ta)); \
}))
#define audio_MAX(a, b) ( __extension__ ({ \
__typeof (a) ta = a; \
__typeof (b) tb = b; \
((ta)<(tb)?(tb):(ta)); \
}))
#else
#define audio_MIN(a, b) ((a)>(b)?(b):(a))
#define audio_MAX(a, b) ((a)<(b)?(b):(a))
#endif
#endif /* audio.h */
|
