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_AUDIO_COREAUDIO
30 /* #define RECIPROCAL */
36 struct audio_callback {
41 struct audio_pcm_info {
52 typedef struct SWVoiceCap SWVoiceCap;
54 typedef struct HWVoiceOut {
58 struct audio_pcm_info info;
65 struct st_sample *mix_buf;
68 QLIST_HEAD (sw_out_listhead, SWVoiceOut) sw_head;
69 QLIST_HEAD (sw_cap_listhead, SWVoiceCap) cap_head;
71 struct audio_pcm_ops *pcm_ops;
72 QLIST_ENTRY (HWVoiceOut) entries;
75 typedef struct HWVoiceIn {
78 struct audio_pcm_info info;
83 int total_samples_captured;
86 struct st_sample *conv_buf;
89 QLIST_HEAD (sw_in_listhead, SWVoiceIn) sw_head;
91 struct audio_pcm_ops *pcm_ops;
92 QLIST_ENTRY (HWVoiceIn) entries;
97 struct audio_pcm_info info;
100 struct st_sample *buf;
102 int total_hw_samples_mixed;
107 struct mixeng_volume vol;
108 struct audio_callback callback;
109 QLIST_ENTRY (SWVoiceOut) entries;
115 struct audio_pcm_info info;
118 int total_hw_samples_acquired;
119 struct st_sample *buf;
123 struct mixeng_volume vol;
124 struct audio_callback callback;
125 QLIST_ENTRY (SWVoiceIn) entries;
128 typedef struct audio_driver audio_driver;
129 struct audio_driver {
132 void *(*init) (Audiodev *);
133 void (*fini) (void *);
134 struct audio_pcm_ops *pcm_ops;
141 QLIST_ENTRY(audio_driver) next;
144 struct audio_pcm_ops {
145 int (*init_out)(HWVoiceOut *hw, struct audsettings *as, void *drv_opaque);
146 void (*fini_out)(HWVoiceOut *hw);
147 int (*run_out) (HWVoiceOut *hw, int live);
148 int (*write) (SWVoiceOut *sw, void *buf, int size);
149 int (*ctl_out) (HWVoiceOut *hw, int cmd, ...);
151 int (*init_in) (HWVoiceIn *hw, struct audsettings *as, void *drv_opaque);
152 void (*fini_in) (HWVoiceIn *hw);
153 int (*run_in) (HWVoiceIn *hw);
154 int (*read) (SWVoiceIn *sw, void *buf, int size);
155 int (*ctl_in) (HWVoiceIn *hw, int cmd, ...);
158 struct capture_callback {
159 struct audio_capture_ops ops;
161 QLIST_ENTRY (capture_callback) entries;
164 struct CaptureVoiceOut {
167 QLIST_HEAD (cb_listhead, capture_callback) cb_head;
168 QLIST_ENTRY (CaptureVoiceOut) entries;
173 CaptureVoiceOut *cap;
174 QLIST_ENTRY (SWVoiceCap) entries;
177 typedef struct AudioState {
178 struct audio_driver *drv;
183 QLIST_HEAD (card_listhead, QEMUSoundCard) card_head;
184 QLIST_HEAD (hw_in_listhead, HWVoiceIn) hw_head_in;
185 QLIST_HEAD (hw_out_listhead, HWVoiceOut) hw_head_out;
186 QLIST_HEAD (cap_listhead, CaptureVoiceOut) cap_head;
187 int nb_hw_voices_out;
190 int64_t period_ticks;
193 extern const struct mixeng_volume nominal_volume;
195 extern const char *audio_prio_list[];
197 void audio_driver_register(audio_driver *drv);
198 audio_driver *audio_driver_lookup(const char *name);
200 void audio_pcm_init_info (struct audio_pcm_info *info, struct audsettings *as);
201 void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len);
203 int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int len);
204 int audio_pcm_hw_get_live_in (HWVoiceIn *hw);
206 int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int len);
208 int audio_pcm_hw_clip_out (HWVoiceOut *hw, void *pcm_buf,
209 int live, int pending);
211 int audio_bug (const char *funcname, int cond);
212 void *audio_calloc (const char *funcname, int nmemb, size_t size);
214 void audio_run (const char *msg);
216 #define VOICE_ENABLE 1
217 #define VOICE_DISABLE 2
218 #define VOICE_VOLUME 3
220 #define VOICE_VOLUME_CAP (1 << VOICE_VOLUME)
222 static inline int audio_ring_dist (int dst, int src, int len)
224 return (dst >= src) ? (dst - src) : (len - src + dst);
227 #define dolog(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__)
230 #define ldebug(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__)
232 #define ldebug(fmt, ...) (void)0
235 #define AUDIO_STRINGIFY_(n) #n
236 #define AUDIO_STRINGIFY(n) AUDIO_STRINGIFY_(n)
238 typedef struct AudiodevListEntry {
240 QSIMPLEQ_ENTRY(AudiodevListEntry) next;
243 typedef QSIMPLEQ_HEAD(, AudiodevListEntry) AudiodevListHead;
244 AudiodevListHead audio_handle_legacy_opts(void);
246 void audio_free_audiodev_list(AudiodevListHead *head);
248 void audio_create_pdos(Audiodev *dev);
249 AudiodevPerDirectionOptions *audio_get_pdo_in(Audiodev *dev);
250 AudiodevPerDirectionOptions *audio_get_pdo_out(Audiodev *dev);
252 #endif /* QEMU_AUDIO_INT_H */