aboutsummaryrefslogtreecommitdiff
path: root/audio/audio_int.h
blob: 5b25da0a373c0321bfceaf49c34c0e40b831f232 (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
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
/*
 * 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_INT_H
#define QEMU_AUDIO_INT_H

#ifdef CONFIG_COREAUDIO
#define FLOAT_MIXENG
/* #define RECIPROCAL */
#endif
#include "mixeng.h"

struct audio_pcm_ops;

typedef enum {
    AUD_OPT_INT,
    AUD_OPT_FMT,
    AUD_OPT_STR,
    AUD_OPT_BOOL
} audio_option_tag_e;

struct audio_option {
    const char *name;
    audio_option_tag_e tag;
    void *valp;
    const char *descr;
    int *overriddenp;
    int overridden;
};

struct audio_callback {
    void *opaque;
    audio_callback_fn fn;
};

struct audio_pcm_info {
    int bits;
    int sign;
    int freq;
    int nchannels;
    int align;
    int shift;
    int bytes_per_second;
    int swap_endianness;
};

typedef struct SWVoiceCap SWVoiceCap;

typedef struct HWVoiceOut {
    int enabled;
    int poll_mode;
    int pending_disable;
    struct audio_pcm_info info;

    f_sample *clip;

    int rpos;
    uint64_t ts_helper;

    struct st_sample *mix_buf;

    int samples;
    QLIST_HEAD (sw_out_listhead, SWVoiceOut) sw_head;
    QLIST_HEAD (sw_cap_listhead, SWVoiceCap) cap_head;
    int ctl_caps;
    struct audio_pcm_ops *pcm_ops;
    QLIST_ENTRY (HWVoiceOut) entries;
} HWVoiceOut;

typedef struct HWVoiceIn {
    int enabled;
    int poll_mode;
    struct audio_pcm_info info;

    t_sample *conv;

    int wpos;
    int total_samples_captured;
    uint64_t ts_helper;

    struct st_sample *conv_buf;

    int samples;
    QLIST_HEAD (sw_in_listhead, SWVoiceIn) sw_head;
    int ctl_caps;
    struct audio_pcm_ops *pcm_ops;
    QLIST_ENTRY (HWVoiceIn) entries;
} HWVoiceIn;

struct SWVoiceOut {
    QEMUSoundCard *card;
    struct audio_pcm_info info;
    t_sample *conv;
    int64_t ratio;
    struct st_sample *buf;
    void *rate;
    int total_hw_samples_mixed;
    int active;
    int empty;
    HWVoiceOut *hw;
    char *name;
    struct mixeng_volume vol;
    struct audio_callback callback;
    QLIST_ENTRY (SWVoiceOut) entries;
};

struct SWVoiceIn {
    QEMUSoundCard *card;
    int active;
    struct audio_pcm_info info;
    int64_t ratio;
    void *rate;
    int total_hw_samples_acquired;
    struct st_sample *buf;
    f_sample *clip;
    HWVoiceIn *hw;
    char *name;
    struct mixeng_volume vol;
    struct audio_callback callback;
    QLIST_ENTRY (SWVoiceIn) entries;
};

struct audio_driver {
    const char *name;
    const char *descr;
    struct audio_option *options;
    void *(*init) (void);
    void (*fini) (void *);
    struct audio_pcm_ops *pcm_ops;
    int can_be_default;
    int max_voices_out;
    int max_voices_in;
    int voice_size_out;
    int voice_size_in;
    int ctl_caps;
};

struct audio_pcm_ops {
    int  (*init_out)(HWVoiceOut *hw, struct audsettings *as, void *drv_opaque);
    void (*fini_out)(HWVoiceOut *hw);
    int  (*run_out) (HWVoiceOut *hw, int live);
    int  (*write)   (SWVoiceOut *sw, void *buf, int size);
    int  (*ctl_out) (HWVoiceOut *hw, int cmd, ...);

    int  (*init_in) (HWVoiceIn *hw, struct audsettings *as, void *drv_opaque);
    void (*fini_in) (HWVoiceIn *hw);
    int  (*run_in)  (HWVoiceIn *hw);
    int  (*read)    (SWVoiceIn *sw, void *buf, int size);
    int  (*ctl_in)  (HWVoiceIn *hw, int cmd, ...);
};

struct capture_callback {
    struct audio_capture_ops ops;
    void *opaque;
    QLIST_ENTRY (capture_callback) entries;
};

struct CaptureVoiceOut {
    HWVoiceOut hw;
    void *buf;
    QLIST_HEAD (cb_listhead, capture_callback) cb_head;
    QLIST_ENTRY (CaptureVoiceOut) entries;
};

struct SWVoiceCap {
    SWVoiceOut sw;
    CaptureVoiceOut *cap;
    QLIST_ENTRY (SWVoiceCap) entries;
};

struct AudioState {
    struct audio_driver *drv;
    void *drv_opaque;

    QEMUTimer *ts;
    QLIST_HEAD (card_listhead, QEMUSoundCard) card_head;
    QLIST_HEAD (hw_in_listhead, HWVoiceIn) hw_head_in;
    QLIST_HEAD (hw_out_listhead, HWVoiceOut) hw_head_out;
    QLIST_HEAD (cap_listhead, CaptureVoiceOut) cap_head;
    int nb_hw_voices_out;
    int nb_hw_voices_in;
    int vm_running;
};

extern struct audio_driver no_audio_driver;
extern struct audio_driver oss_audio_driver;
extern struct audio_driver sdl_audio_driver;
extern struct audio_driver wav_audio_driver;
extern struct audio_driver alsa_audio_driver;
extern struct audio_driver coreaudio_audio_driver;
extern struct audio_driver dsound_audio_driver;
extern struct audio_driver pa_audio_driver;
extern struct audio_driver spice_audio_driver;
extern const struct mixeng_volume nominal_volume;

void audio_pcm_init_info (struct audio_pcm_info *info, struct audsettings *as);
void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len);

int  audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int len);
int  audio_pcm_hw_get_live_in (HWVoiceIn *hw);

int  audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int len);

int audio_pcm_hw_clip_out (HWVoiceOut *hw, void *pcm_buf,
                           int live, int pending);

int audio_bug (const char *funcname, int cond);
void *audio_calloc (const char *funcname, int nmemb, size_t size);

void audio_run (const char *msg);

#define VOICE_ENABLE 1
#define VOICE_DISABLE 2
#define VOICE_VOLUME 3

#define VOICE_VOLUME_CAP (1 << VOICE_VOLUME)

static inline int audio_ring_dist (int dst, int src, int len)
{
    return (dst >= src) ? (dst - src) : (len - src + dst);
}

#define dolog(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__)

#ifdef DEBUG
#define ldebug(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__)
#else
#define ldebug(fmt, ...) (void)0
#endif

#define AUDIO_STRINGIFY_(n) #n
#define AUDIO_STRINGIFY(n) AUDIO_STRINGIFY_(n)

#endif /* QEMU_AUDIO_INT_H */