2 * QEMU Audio subsystem header
4 * Copyright (c) 2003-2005 Vassili Karpov (malc)
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
27 #include "config-host.h"
28 #include "sys-queue.h"
30 typedef void (*audio_callback_fn_t) (void *opaque, int avail);
41 #ifdef WORDS_BIGENDIAN
42 #define AUDIO_HOST_ENDIANNESS 1
44 #define AUDIO_HOST_ENDIANNESS 0
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);
66 void (*info) (void *opaque);
67 void (*destroy) (void *opaque);
70 typedef struct CaptureState {
72 struct capture_ops ops;
73 LIST_ENTRY (CaptureState) entries;
76 typedef struct SWVoiceOut SWVoiceOut;
77 typedef struct CaptureVoiceOut CaptureVoiceOut;
78 typedef struct SWVoiceIn SWVoiceIn;
80 typedef struct QEMUSoundCard {
83 LIST_ENTRY (QEMUSoundCard) entries;
86 typedef struct QEMUAudioTimeStamp {
90 void AUD_vlog (const char *cap, const char *fmt, va_list ap);
91 void AUD_log (const char *cap, const char *fmt, ...)
93 __attribute__ ((__format__ (__printf__, 2, 3)))
97 AudioState *AUD_init (void);
99 void AUD_register_card (AudioState *s, const char *name, QEMUSoundCard *card);
100 void AUD_remove_card (QEMUSoundCard *card);
101 CaptureVoiceOut *AUD_add_capture (
104 struct audio_capture_ops *ops,
107 void AUD_del_capture (CaptureVoiceOut *cap, void *cb_opaque);
109 SWVoiceOut *AUD_open_out (
113 void *callback_opaque,
114 audio_callback_fn_t callback_fn,
115 audsettings_t *settings
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);
124 void AUD_init_time_stamp_out (SWVoiceOut *sw, QEMUAudioTimeStamp *ts);
125 uint64_t AUD_get_elapsed_usec_out (SWVoiceOut *sw, QEMUAudioTimeStamp *ts);
127 void AUD_set_volume_out (SWVoiceOut *sw, int mute, uint8_t lvol, uint8_t rvol);
128 void AUD_set_volume_in (SWVoiceIn *sw, int mute, uint8_t lvol, uint8_t rvol);
130 SWVoiceIn *AUD_open_in (
134 void *callback_opaque,
135 audio_callback_fn_t callback_fn,
136 audsettings_t *settings
139 void AUD_close_in (QEMUSoundCard *card, SWVoiceIn *sw);
140 int AUD_read (SWVoiceIn *sw, void *pcm_buf, int size);
141 void AUD_set_active_in (SWVoiceIn *sw, int on);
142 int AUD_is_active_in (SWVoiceIn *sw);
144 void AUD_init_time_stamp_in (SWVoiceIn *sw, QEMUAudioTimeStamp *ts);
145 uint64_t AUD_get_elapsed_usec_in (SWVoiceIn *sw, QEMUAudioTimeStamp *ts);
147 static inline void *advance (void *p, int incr)
153 uint32_t popcount (uint32_t u);
154 uint32_t lsbindex (uint32_t u);
157 #define audio_MIN(a, b) ( __extension__ ({ \
158 __typeof (a) ta = a; \
159 __typeof (b) tb = b; \
160 ((ta)>(tb)?(tb):(ta)); \
163 #define audio_MAX(a, b) ( __extension__ ({ \
164 __typeof (a) ta = a; \
165 __typeof (b) tb = b; \
166 ((ta)<(tb)?(tb):(ta)); \
169 #define audio_MIN(a, b) ((a)>(b)?(b):(a))
170 #define audio_MAX(a, b) ((a)<(b)?(b):(a))