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
24 #ifndef QEMU_AUDIO_INT_H
25 #define QEMU_AUDIO_INT_H
27 #ifdef CONFIG_COREAUDIO
29 /* #define RECIPROCAL */
44 audio_option_tag_e tag;
51 struct audio_callback {
56 struct audio_pcm_info {
67 typedef struct SWVoiceCap SWVoiceCap;
69 typedef struct HWVoiceOut {
73 struct audio_pcm_info info;
80 struct st_sample *mix_buf;
83 QLIST_HEAD (sw_out_listhead, SWVoiceOut) sw_head;
84 QLIST_HEAD (sw_cap_listhead, SWVoiceCap) cap_head;
86 struct audio_pcm_ops *pcm_ops;
87 QLIST_ENTRY (HWVoiceOut) entries;
90 typedef struct HWVoiceIn {
93 struct audio_pcm_info info;
98 int total_samples_captured;
101 struct st_sample *conv_buf;
104 QLIST_HEAD (sw_in_listhead, SWVoiceIn) sw_head;
106 struct audio_pcm_ops *pcm_ops;
107 QLIST_ENTRY (HWVoiceIn) entries;
112 struct audio_pcm_info info;
115 struct st_sample *buf;
117 int total_hw_samples_mixed;
122 struct mixeng_volume vol;
123 struct audio_callback callback;
124 QLIST_ENTRY (SWVoiceOut) entries;
130 struct audio_pcm_info info;
133 int total_hw_samples_acquired;
134 struct st_sample *buf;
138 struct mixeng_volume vol;
139 struct audio_callback callback;
140 QLIST_ENTRY (SWVoiceIn) entries;
143 struct audio_driver {
146 struct audio_option *options;
147 void *(*init) (void);
148 void (*fini) (void *);
149 struct audio_pcm_ops *pcm_ops;
158 struct audio_pcm_ops {
159 int (*init_out)(HWVoiceOut *hw, struct audsettings *as, void *drv_opaque);
160 void (*fini_out)(HWVoiceOut *hw);
161 int (*run_out) (HWVoiceOut *hw, int live);
162 int (*write) (SWVoiceOut *sw, void *buf, int size);
163 int (*ctl_out) (HWVoiceOut *hw, int cmd, ...);
165 int (*init_in) (HWVoiceIn *hw, struct audsettings *as, void *drv_opaque);
166 void (*fini_in) (HWVoiceIn *hw);
167 int (*run_in) (HWVoiceIn *hw);
168 int (*read) (SWVoiceIn *sw, void *buf, int size);
169 int (*ctl_in) (HWVoiceIn *hw, int cmd, ...);
172 struct capture_callback {
173 struct audio_capture_ops ops;
175 QLIST_ENTRY (capture_callback) entries;
178 struct CaptureVoiceOut {
181 QLIST_HEAD (cb_listhead, capture_callback) cb_head;
182 QLIST_ENTRY (CaptureVoiceOut) entries;
187 CaptureVoiceOut *cap;
188 QLIST_ENTRY (SWVoiceCap) entries;
192 struct audio_driver *drv;
196 QLIST_HEAD (card_listhead, QEMUSoundCard) card_head;
197 QLIST_HEAD (hw_in_listhead, HWVoiceIn) hw_head_in;
198 QLIST_HEAD (hw_out_listhead, HWVoiceOut) hw_head_out;
199 QLIST_HEAD (cap_listhead, CaptureVoiceOut) cap_head;
200 int nb_hw_voices_out;
205 extern struct audio_driver no_audio_driver;
206 extern struct audio_driver oss_audio_driver;
207 extern struct audio_driver sdl_audio_driver;
208 extern struct audio_driver wav_audio_driver;
209 extern struct audio_driver alsa_audio_driver;
210 extern struct audio_driver coreaudio_audio_driver;
211 extern struct audio_driver dsound_audio_driver;
212 extern struct audio_driver pa_audio_driver;
213 extern struct audio_driver spice_audio_driver;
214 extern const struct mixeng_volume nominal_volume;
216 void audio_pcm_init_info (struct audio_pcm_info *info, struct audsettings *as);
217 void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len);
219 int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int len);
220 int audio_pcm_hw_get_live_in (HWVoiceIn *hw);
222 int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int len);
224 int audio_pcm_hw_clip_out (HWVoiceOut *hw, void *pcm_buf,
225 int live, int pending);
227 int audio_bug (const char *funcname, int cond);
228 void *audio_calloc (const char *funcname, int nmemb, size_t size);
230 void audio_run (const char *msg);
232 #define VOICE_ENABLE 1
233 #define VOICE_DISABLE 2
234 #define VOICE_VOLUME 3
236 #define VOICE_VOLUME_CAP (1 << VOICE_VOLUME)
238 static inline int audio_ring_dist (int dst, int src, int len)
240 return (dst >= src) ? (dst - src) : (len - src + dst);
243 #define dolog(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__)
246 #define ldebug(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__)
248 #define ldebug(fmt, ...) (void)0
251 #define AUDIO_STRINGIFY_(n) #n
252 #define AUDIO_STRINGIFY(n) AUDIO_STRINGIFY_(n)
254 #if defined _MSC_VER || defined __GNUC__
255 #define AUDIO_FUNC __FUNCTION__
257 #define AUDIO_FUNC __FILE__ ":" AUDIO_STRINGIFY (__LINE__)
260 #endif /* audio_int.h */