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
25 #ifndef QEMU_AUDIO_INT_H
26 #define QEMU_AUDIO_INT_H
28 #ifdef CONFIG_COREAUDIO
30 /* #define RECIPROCAL */
45 audio_option_tag_e tag
;
52 struct audio_callback
{
57 struct audio_pcm_info
{
68 typedef struct SWVoiceCap SWVoiceCap
;
70 typedef struct HWVoiceOut
{
74 struct audio_pcm_info info
;
81 struct st_sample
*mix_buf
;
84 QLIST_HEAD (sw_out_listhead
, SWVoiceOut
) sw_head
;
85 QLIST_HEAD (sw_cap_listhead
, SWVoiceCap
) cap_head
;
87 struct audio_pcm_ops
*pcm_ops
;
88 QLIST_ENTRY (HWVoiceOut
) entries
;
91 typedef struct HWVoiceIn
{
94 struct audio_pcm_info info
;
99 int total_samples_captured
;
102 struct st_sample
*conv_buf
;
105 QLIST_HEAD (sw_in_listhead
, SWVoiceIn
) sw_head
;
107 struct audio_pcm_ops
*pcm_ops
;
108 QLIST_ENTRY (HWVoiceIn
) entries
;
113 struct audio_pcm_info info
;
116 struct st_sample
*buf
;
118 int total_hw_samples_mixed
;
123 struct mixeng_volume vol
;
124 struct audio_callback callback
;
125 QLIST_ENTRY (SWVoiceOut
) entries
;
131 struct audio_pcm_info info
;
134 int total_hw_samples_acquired
;
135 struct st_sample
*buf
;
139 struct mixeng_volume vol
;
140 struct audio_callback callback
;
141 QLIST_ENTRY (SWVoiceIn
) entries
;
144 struct audio_driver
{
147 struct audio_option
*options
;
148 void *(*init
) (void);
149 void (*fini
) (void *);
150 struct audio_pcm_ops
*pcm_ops
;
159 struct audio_pcm_ops
{
160 int (*init_out
)(HWVoiceOut
*hw
, struct audsettings
*as
, void *drv_opaque
);
161 void (*fini_out
)(HWVoiceOut
*hw
);
162 int (*run_out
) (HWVoiceOut
*hw
, int live
);
163 int (*write
) (SWVoiceOut
*sw
, void *buf
, int size
);
164 int (*ctl_out
) (HWVoiceOut
*hw
, int cmd
, ...);
166 int (*init_in
) (HWVoiceIn
*hw
, struct audsettings
*as
, void *drv_opaque
);
167 void (*fini_in
) (HWVoiceIn
*hw
);
168 int (*run_in
) (HWVoiceIn
*hw
);
169 int (*read
) (SWVoiceIn
*sw
, void *buf
, int size
);
170 int (*ctl_in
) (HWVoiceIn
*hw
, int cmd
, ...);
173 struct capture_callback
{
174 struct audio_capture_ops ops
;
176 QLIST_ENTRY (capture_callback
) entries
;
179 struct CaptureVoiceOut
{
182 QLIST_HEAD (cb_listhead
, capture_callback
) cb_head
;
183 QLIST_ENTRY (CaptureVoiceOut
) entries
;
188 CaptureVoiceOut
*cap
;
189 QLIST_ENTRY (SWVoiceCap
) entries
;
193 struct audio_driver
*drv
;
197 QLIST_HEAD (card_listhead
, QEMUSoundCard
) card_head
;
198 QLIST_HEAD (hw_in_listhead
, HWVoiceIn
) hw_head_in
;
199 QLIST_HEAD (hw_out_listhead
, HWVoiceOut
) hw_head_out
;
200 QLIST_HEAD (cap_listhead
, CaptureVoiceOut
) cap_head
;
201 int nb_hw_voices_out
;
206 extern struct audio_driver no_audio_driver
;
207 extern struct audio_driver oss_audio_driver
;
208 extern struct audio_driver sdl_audio_driver
;
209 extern struct audio_driver wav_audio_driver
;
210 extern struct audio_driver alsa_audio_driver
;
211 extern struct audio_driver coreaudio_audio_driver
;
212 extern struct audio_driver dsound_audio_driver
;
213 extern struct audio_driver pa_audio_driver
;
214 extern struct audio_driver spice_audio_driver
;
215 extern const struct mixeng_volume nominal_volume
;
217 void audio_pcm_init_info (struct audio_pcm_info
*info
, struct audsettings
*as
);
218 void audio_pcm_info_clear_buf (struct audio_pcm_info
*info
, void *buf
, int len
);
220 int audio_pcm_sw_write (SWVoiceOut
*sw
, void *buf
, int len
);
221 int audio_pcm_hw_get_live_in (HWVoiceIn
*hw
);
223 int audio_pcm_sw_read (SWVoiceIn
*sw
, void *buf
, int len
);
225 int audio_pcm_hw_clip_out (HWVoiceOut
*hw
, void *pcm_buf
,
226 int live
, int pending
);
228 int audio_bug (const char *funcname
, int cond
);
229 void *audio_calloc (const char *funcname
, int nmemb
, size_t size
);
231 void audio_run (const char *msg
);
233 #define VOICE_ENABLE 1
234 #define VOICE_DISABLE 2
235 #define VOICE_VOLUME 3
237 #define VOICE_VOLUME_CAP (1 << VOICE_VOLUME)
239 static inline int audio_ring_dist (int dst
, int src
, int len
)
241 return (dst
>= src
) ? (dst
- src
) : (len
- src
+ dst
);
244 #define dolog(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__)
247 #define ldebug(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__)
249 #define ldebug(fmt, ...) (void)0
252 #define AUDIO_STRINGIFY_(n) #n
253 #define AUDIO_STRINGIFY(n) AUDIO_STRINGIFY_(n)
255 #if defined _MSC_VER || defined __GNUC__
256 #define AUDIO_FUNC __FUNCTION__
258 #define AUDIO_FUNC __FILE__ ":" AUDIO_STRINGIFY (__LINE__)
261 #endif /* QEMU_AUDIO_INT_H */