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1.1 root 1: /*
2: * QEMU Audio subsystem header
1.1.1.2 root 3: *
4: * Copyright (c) 2003-2005 Vassili Karpov (malc)
5: *
1.1 root 6: * Permission is hereby granted, free of charge, to any person obtaining a copy
7: * of this software and associated documentation files (the "Software"), to deal
8: * in the Software without restriction, including without limitation the rights
9: * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10: * copies of the Software, and to permit persons to whom the Software is
11: * furnished to do so, subject to the following conditions:
12: *
13: * The above copyright notice and this permission notice shall be included in
14: * all copies or substantial portions of the Software.
15: *
16: * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17: * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18: * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19: * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20: * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21: * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22: * THE SOFTWARE.
23: */
24: #ifndef QEMU_AUDIO_H
25: #define QEMU_AUDIO_H
26:
1.1.1.4 ! root 27: #include "config-host.h"
1.1.1.2 root 28: #include "sys-queue.h"
29:
30: typedef void (*audio_callback_fn_t) (void *opaque, int avail);
1.1 root 31:
32: typedef enum {
1.1.1.2 root 33: AUD_FMT_U8,
34: AUD_FMT_S8,
35: AUD_FMT_U16,
1.1.1.4 ! root 36: AUD_FMT_S16,
! 37: AUD_FMT_U32,
! 38: AUD_FMT_S32
1.1 root 39: } audfmt_e;
40:
1.1.1.3 root 41: #ifdef WORDS_BIGENDIAN
42: #define AUDIO_HOST_ENDIANNESS 1
43: #else
44: #define AUDIO_HOST_ENDIANNESS 0
45: #endif
46:
1.1.1.2 root 47: typedef struct {
48: int freq;
49: int nchannels;
50: audfmt_e fmt;
1.1.1.3 root 51: int endianness;
1.1.1.2 root 52: } audsettings_t;
53:
1.1.1.3 root 54: typedef enum {
55: AUD_CNOTIFY_ENABLE,
56: AUD_CNOTIFY_DISABLE
57: } audcnotification_e;
58:
59: struct audio_capture_ops {
60: void (*notify) (void *opaque, audcnotification_e cmd);
61: void (*capture) (void *opaque, void *buf, int size);
62: void (*destroy) (void *opaque);
63: };
64:
65: struct capture_ops {
66: void (*info) (void *opaque);
67: void (*destroy) (void *opaque);
68: };
69:
70: typedef struct CaptureState {
71: void *opaque;
72: struct capture_ops ops;
73: LIST_ENTRY (CaptureState) entries;
74: } CaptureState;
75:
1.1.1.2 root 76: typedef struct SWVoiceOut SWVoiceOut;
1.1.1.3 root 77: typedef struct CaptureVoiceOut CaptureVoiceOut;
1.1.1.2 root 78: typedef struct SWVoiceIn SWVoiceIn;
79:
80: typedef struct QEMUSoundCard {
81: AudioState *audio;
82: char *name;
83: LIST_ENTRY (QEMUSoundCard) entries;
84: } QEMUSoundCard;
85:
86: typedef struct QEMUAudioTimeStamp {
87: uint64_t old_ts;
88: } QEMUAudioTimeStamp;
89:
90: void AUD_vlog (const char *cap, const char *fmt, va_list ap);
91: void AUD_log (const char *cap, const char *fmt, ...)
92: #ifdef __GNUC__
93: __attribute__ ((__format__ (__printf__, 2, 3)))
94: #endif
95: ;
96:
97: AudioState *AUD_init (void);
98: void AUD_help (void);
99: void AUD_register_card (AudioState *s, const char *name, QEMUSoundCard *card);
100: void AUD_remove_card (QEMUSoundCard *card);
1.1.1.3 root 101: CaptureVoiceOut *AUD_add_capture (
102: AudioState *s,
103: audsettings_t *as,
104: struct audio_capture_ops *ops,
105: void *opaque
106: );
107: void AUD_del_capture (CaptureVoiceOut *cap, void *cb_opaque);
1.1.1.2 root 108:
109: SWVoiceOut *AUD_open_out (
110: QEMUSoundCard *card,
111: SWVoiceOut *sw,
112: const char *name,
113: void *callback_opaque,
114: audio_callback_fn_t callback_fn,
1.1.1.3 root 115: audsettings_t *settings
1.1.1.2 root 116: );
117:
118: void AUD_close_out (QEMUSoundCard *card, SWVoiceOut *sw);
119: int AUD_write (SWVoiceOut *sw, void *pcm_buf, int size);
120: int AUD_get_buffer_size_out (SWVoiceOut *sw);
121: void AUD_set_active_out (SWVoiceOut *sw, int on);
122: int AUD_is_active_out (SWVoiceOut *sw);
123:
124: void AUD_init_time_stamp_out (SWVoiceOut *sw, QEMUAudioTimeStamp *ts);
125: uint64_t AUD_get_elapsed_usec_out (SWVoiceOut *sw, QEMUAudioTimeStamp *ts);
126:
127: SWVoiceIn *AUD_open_in (
128: QEMUSoundCard *card,
129: SWVoiceIn *sw,
130: const char *name,
131: void *callback_opaque,
132: audio_callback_fn_t callback_fn,
1.1.1.3 root 133: audsettings_t *settings
1.1.1.2 root 134: );
135:
136: void AUD_close_in (QEMUSoundCard *card, SWVoiceIn *sw);
137: int AUD_read (SWVoiceIn *sw, void *pcm_buf, int size);
138: void AUD_set_active_in (SWVoiceIn *sw, int on);
139: int AUD_is_active_in (SWVoiceIn *sw);
1.1 root 140:
1.1.1.2 root 141: void AUD_init_time_stamp_in (SWVoiceIn *sw, QEMUAudioTimeStamp *ts);
142: uint64_t AUD_get_elapsed_usec_in (SWVoiceIn *sw, QEMUAudioTimeStamp *ts);
1.1 root 143:
144: static inline void *advance (void *p, int incr)
145: {
146: uint8_t *d = p;
147: return (d + incr);
148: }
149:
150: uint32_t popcount (uint32_t u);
1.1.1.3 root 151: uint32_t lsbindex (uint32_t u);
1.1 root 152:
1.1.1.2 root 153: #ifdef __GNUC__
154: #define audio_MIN(a, b) ( __extension__ ({ \
155: __typeof (a) ta = a; \
156: __typeof (b) tb = b; \
157: ((ta)>(tb)?(tb):(ta)); \
158: }))
159:
160: #define audio_MAX(a, b) ( __extension__ ({ \
161: __typeof (a) ta = a; \
162: __typeof (b) tb = b; \
163: ((ta)<(tb)?(tb):(ta)); \
164: }))
165: #else
1.1 root 166: #define audio_MIN(a, b) ((a)>(b)?(b):(a))
167: #define audio_MAX(a, b) ((a)<(b)?(b):(a))
1.1.1.2 root 168: #endif
1.1 root 169:
170: #endif /* audio.h */
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