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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:
1.1.1.3 ! root 27: #include "config.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,
36: AUD_FMT_S16
1.1 root 37: } audfmt_e;
38:
1.1.1.3 ! root 39: #ifdef WORDS_BIGENDIAN
! 40: #define AUDIO_HOST_ENDIANNESS 1
! 41: #else
! 42: #define AUDIO_HOST_ENDIANNESS 0
! 43: #endif
! 44:
1.1.1.2 root 45: typedef struct {
46: int freq;
47: int nchannels;
48: audfmt_e fmt;
1.1.1.3 ! root 49: int endianness;
1.1.1.2 root 50: } audsettings_t;
51:
1.1.1.3 ! root 52: typedef enum {
! 53: AUD_CNOTIFY_ENABLE,
! 54: AUD_CNOTIFY_DISABLE
! 55: } audcnotification_e;
! 56:
! 57: struct audio_capture_ops {
! 58: void (*notify) (void *opaque, audcnotification_e cmd);
! 59: void (*capture) (void *opaque, void *buf, int size);
! 60: void (*destroy) (void *opaque);
! 61: };
! 62:
! 63: struct capture_ops {
! 64: void (*info) (void *opaque);
! 65: void (*destroy) (void *opaque);
! 66: };
! 67:
! 68: typedef struct CaptureState {
! 69: void *opaque;
! 70: struct capture_ops ops;
! 71: LIST_ENTRY (CaptureState) entries;
! 72: } CaptureState;
! 73:
1.1.1.2 root 74: typedef struct AudioState AudioState;
75: typedef struct SWVoiceOut SWVoiceOut;
1.1.1.3 ! root 76: typedef struct CaptureVoiceOut CaptureVoiceOut;
1.1.1.2 root 77: typedef struct SWVoiceIn SWVoiceIn;
78:
79: typedef struct QEMUSoundCard {
80: AudioState *audio;
81: char *name;
82: LIST_ENTRY (QEMUSoundCard) entries;
83: } QEMUSoundCard;
84:
85: typedef struct QEMUAudioTimeStamp {
86: uint64_t old_ts;
87: } QEMUAudioTimeStamp;
88:
89: void AUD_vlog (const char *cap, const char *fmt, va_list ap);
90: void AUD_log (const char *cap, const char *fmt, ...)
91: #ifdef __GNUC__
92: __attribute__ ((__format__ (__printf__, 2, 3)))
93: #endif
94: ;
95:
96: AudioState *AUD_init (void);
97: void AUD_help (void);
98: void AUD_register_card (AudioState *s, const char *name, QEMUSoundCard *card);
99: void AUD_remove_card (QEMUSoundCard *card);
1.1.1.3 ! root 100: CaptureVoiceOut *AUD_add_capture (
! 101: AudioState *s,
! 102: audsettings_t *as,
! 103: struct audio_capture_ops *ops,
! 104: void *opaque
! 105: );
! 106: void AUD_del_capture (CaptureVoiceOut *cap, void *cb_opaque);
1.1.1.2 root 107:
108: SWVoiceOut *AUD_open_out (
109: QEMUSoundCard *card,
110: SWVoiceOut *sw,
111: const char *name,
112: void *callback_opaque,
113: audio_callback_fn_t callback_fn,
1.1.1.3 ! root 114: audsettings_t *settings
1.1.1.2 root 115: );
116:
117: void AUD_close_out (QEMUSoundCard *card, SWVoiceOut *sw);
118: int AUD_write (SWVoiceOut *sw, void *pcm_buf, int size);
119: int AUD_get_buffer_size_out (SWVoiceOut *sw);
120: void AUD_set_active_out (SWVoiceOut *sw, int on);
121: int AUD_is_active_out (SWVoiceOut *sw);
122:
123: void AUD_init_time_stamp_out (SWVoiceOut *sw, QEMUAudioTimeStamp *ts);
124: uint64_t AUD_get_elapsed_usec_out (SWVoiceOut *sw, QEMUAudioTimeStamp *ts);
125:
126: SWVoiceIn *AUD_open_in (
127: QEMUSoundCard *card,
128: SWVoiceIn *sw,
129: const char *name,
130: void *callback_opaque,
131: audio_callback_fn_t callback_fn,
1.1.1.3 ! root 132: audsettings_t *settings
1.1.1.2 root 133: );
134:
135: void AUD_close_in (QEMUSoundCard *card, SWVoiceIn *sw);
136: int AUD_read (SWVoiceIn *sw, void *pcm_buf, int size);
137: void AUD_set_active_in (SWVoiceIn *sw, int on);
138: int AUD_is_active_in (SWVoiceIn *sw);
1.1 root 139:
1.1.1.2 root 140: void AUD_init_time_stamp_in (SWVoiceIn *sw, QEMUAudioTimeStamp *ts);
141: uint64_t AUD_get_elapsed_usec_in (SWVoiceIn *sw, QEMUAudioTimeStamp *ts);
1.1 root 142:
143: static inline void *advance (void *p, int incr)
144: {
145: uint8_t *d = p;
146: return (d + incr);
147: }
148:
149: uint32_t popcount (uint32_t u);
1.1.1.3 ! root 150: uint32_t lsbindex (uint32_t u);
1.1 root 151:
1.1.1.2 root 152: #ifdef __GNUC__
153: #define audio_MIN(a, b) ( __extension__ ({ \
154: __typeof (a) ta = a; \
155: __typeof (b) tb = b; \
156: ((ta)>(tb)?(tb):(ta)); \
157: }))
158:
159: #define audio_MAX(a, b) ( __extension__ ({ \
160: __typeof (a) ta = a; \
161: __typeof (b) tb = b; \
162: ((ta)<(tb)?(tb):(ta)); \
163: }))
164: #else
1.1 root 165: #define audio_MIN(a, b) ((a)>(b)?(b):(a))
166: #define audio_MAX(a, b) ((a)<(b)?(b):(a))
1.1.1.2 root 167: #endif
1.1 root 168:
169: #endif /* audio.h */
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