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 "sys-queue.h"
29 typedef void (*audio_callback_fn_t) (void *opaque, int avail);
44 typedef struct AudioState AudioState;
45 typedef struct SWVoiceOut SWVoiceOut;
46 typedef struct SWVoiceIn SWVoiceIn;
48 typedef struct QEMUSoundCard {
51 LIST_ENTRY (QEMUSoundCard) entries;
54 typedef struct QEMUAudioTimeStamp {
58 void AUD_vlog (const char *cap, const char *fmt, va_list ap);
59 void AUD_log (const char *cap, const char *fmt, ...)
61 __attribute__ ((__format__ (__printf__, 2, 3)))
65 AudioState *AUD_init (void);
67 void AUD_register_card (AudioState *s, const char *name, QEMUSoundCard *card);
68 void AUD_remove_card (QEMUSoundCard *card);
70 SWVoiceOut *AUD_open_out (
74 void *callback_opaque,
75 audio_callback_fn_t callback_fn,
76 audsettings_t *settings,
80 void AUD_close_out (QEMUSoundCard *card, SWVoiceOut *sw);
81 int AUD_write (SWVoiceOut *sw, void *pcm_buf, int size);
82 int AUD_get_buffer_size_out (SWVoiceOut *sw);
83 void AUD_set_active_out (SWVoiceOut *sw, int on);
84 int AUD_is_active_out (SWVoiceOut *sw);
86 void AUD_init_time_stamp_out (SWVoiceOut *sw, QEMUAudioTimeStamp *ts);
87 uint64_t AUD_get_elapsed_usec_out (SWVoiceOut *sw, QEMUAudioTimeStamp *ts);
89 SWVoiceIn *AUD_open_in (
93 void *callback_opaque,
94 audio_callback_fn_t callback_fn,
95 audsettings_t *settings,
99 void AUD_close_in (QEMUSoundCard *card, SWVoiceIn *sw);
100 int AUD_read (SWVoiceIn *sw, void *pcm_buf, int size);
101 void AUD_set_active_in (SWVoiceIn *sw, int on);
102 int AUD_is_active_in (SWVoiceIn *sw);
104 void AUD_init_time_stamp_in (SWVoiceIn *sw, QEMUAudioTimeStamp *ts);
105 uint64_t AUD_get_elapsed_usec_in (SWVoiceIn *sw, QEMUAudioTimeStamp *ts);
107 static inline void *advance (void *p, int incr)
113 uint32_t popcount (uint32_t u);
114 inline uint32_t lsbindex (uint32_t u);
117 #define audio_MIN(a, b) ( __extension__ ({ \
118 __typeof (a) ta = a; \
119 __typeof (b) tb = b; \
120 ((ta)>(tb)?(tb):(ta)); \
123 #define audio_MAX(a, b) ( __extension__ ({ \
124 __typeof (a) ta = a; \
125 __typeof (b) tb = b; \
126 ((ta)<(tb)?(tb):(ta)); \
129 #define audio_MIN(a, b) ((a)>(b)?(b):(a))
130 #define audio_MAX(a, b) ((a)<(b)?(b):(a))