summaryrefslogtreecommitdiff
blob: 454ade260e583d1cec09d89a6e3320ab4392ad07 (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
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
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
/*
 * 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

#include "config-host.h"
#include "qemu-queue.h"

typedef void (*audio_callback_fn) (void *opaque, int avail);

typedef enum {
    AUD_FMT_U8,
    AUD_FMT_S8,
    AUD_FMT_U16,
    AUD_FMT_S16,
    AUD_FMT_U32,
    AUD_FMT_S32
} audfmt_e;

#ifdef HOST_WORDS_BIGENDIAN
#define AUDIO_HOST_ENDIANNESS 1
#else
#define AUDIO_HOST_ENDIANNESS 0
#endif

struct audsettings {
    int freq;
    int nchannels;
    audfmt_e fmt;
    int endianness;
};

typedef enum {
    AUD_CNOTIFY_ENABLE,
    AUD_CNOTIFY_DISABLE
} audcnotification_e;

struct audio_capture_ops {
    void (*notify) (void *opaque, audcnotification_e cmd);
    void (*capture) (void *opaque, void *buf, int size);
    void (*destroy) (void *opaque);
};

struct capture_ops {
    void (*info) (void *opaque);
    void (*destroy) (void *opaque);
};

typedef struct CaptureState {
    void *opaque;
    struct capture_ops ops;
    QLIST_ENTRY (CaptureState) entries;
} CaptureState;

typedef struct SWVoiceOut SWVoiceOut;
typedef struct CaptureVoiceOut CaptureVoiceOut;
typedef struct SWVoiceIn SWVoiceIn;

typedef struct QEMUSoundCard {
    char *name;
    QLIST_ENTRY (QEMUSoundCard) entries;
} QEMUSoundCard;

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_help (void);
void AUD_register_card (const char *name, QEMUSoundCard *card);
void AUD_remove_card (QEMUSoundCard *card);
CaptureVoiceOut *AUD_add_capture (
    struct audsettings *as,
    struct audio_capture_ops *ops,
    void *opaque
    );
void AUD_del_capture (CaptureVoiceOut *cap, void *cb_opaque);

SWVoiceOut *AUD_open_out (
    QEMUSoundCard *card,
    SWVoiceOut *sw,
    const char *name,
    void *callback_opaque,
    audio_callback_fn callback_fn,
    struct audsettings *settings
    );

void AUD_close_out (QEMUSoundCard *card, 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_get_elapsed_usec_out (SWVoiceOut *sw, QEMUAudioTimeStamp *ts);

void AUD_set_volume_out (SWVoiceOut *sw, int mute, uint8_t lvol, uint8_t rvol);
void AUD_set_volume_in (SWVoiceIn *sw, int mute, uint8_t lvol, uint8_t rvol);

SWVoiceIn *AUD_open_in (
    QEMUSoundCard *card,
    SWVoiceIn *sw,
    const char *name,
    void *callback_opaque,
    audio_callback_fn callback_fn,
    struct audsettings *settings
    );

void AUD_close_in (QEMUSoundCard *card, SWVoiceIn *sw);
int  AUD_read (SWVoiceIn *sw, void *pcm_buf, int size);
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_get_elapsed_usec_in (SWVoiceIn *sw, QEMUAudioTimeStamp *ts);

static inline void *advance (void *p, int incr)
{
    uint8_t *d = p;
    return (d + incr);
}

#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

int wav_start_capture (CaptureState *s, const char *path, int freq,
                       int bits, int nchannels);

#endif  /* audio.h */