2 * QEMU Audio subsystem header
4 * Copyright (c) 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
26 #define NAME "playback"
27 #define HWBUF hw->mix_buf
32 #define NAME "capture"
36 #define HWBUF hw->conv_buf
39 static void glue(audio_init_nb_voices_
, TYPE
)(AudioState
*s
,
40 struct audio_driver
*drv
)
42 int max_voices
= glue (drv
->max_voices_
, TYPE
);
43 int voice_size
= glue (drv
->voice_size_
, TYPE
);
45 if (glue (s
->nb_hw_voices_
, TYPE
) > max_voices
) {
48 dolog ("Driver `%s' does not support " NAME
"\n", drv
->name
);
51 dolog ("Driver `%s' does not support %d " NAME
" voices, max %d\n",
53 glue (s
->nb_hw_voices_
, TYPE
),
56 glue (s
->nb_hw_voices_
, TYPE
) = max_voices
;
59 if (audio_bug(__func__
, !voice_size
&& max_voices
)) {
60 dolog ("drv=`%s' voice_size=0 max_voices=%d\n",
61 drv
->name
, max_voices
);
65 if (audio_bug(__func__
, voice_size
&& !max_voices
)) {
66 dolog ("drv=`%s' voice_size=%d max_voices=0\n",
67 drv
->name
, voice_size
);
72 static void glue (audio_pcm_hw_free_resources_
, TYPE
) (HW
*hw
)
79 static void glue(audio_pcm_hw_alloc_resources_
, TYPE
)(HW
*hw
)
81 if (glue(audio_get_pdo_
, TYPE
)(hw
->s
->dev
)->mixing_engine
) {
82 size_t samples
= hw
->samples
;
83 if (audio_bug(__func__
, samples
== 0)) {
84 dolog("Attempted to allocate empty buffer\n");
88 HWBUF
= g_malloc0(sizeof(STSampleBuffer
) + sizeof(st_sample
) * samples
);
89 HWBUF
->size
= samples
;
95 static void glue (audio_pcm_sw_free_resources_
, TYPE
) (SW
*sw
)
100 st_rate_stop (sw
->rate
);
107 static int glue (audio_pcm_sw_alloc_resources_
, TYPE
) (SW
*sw
)
111 if (!glue(audio_get_pdo_
, TYPE
)(sw
->s
->dev
)->mixing_engine
) {
115 samples
= ((int64_t) sw
->HWBUF
->size
<< 32) / sw
->ratio
;
117 sw
->buf
= audio_calloc(__func__
, samples
, sizeof(struct st_sample
));
119 dolog ("Could not allocate buffer for `%s' (%d samples)\n",
120 SW_NAME (sw
), samples
);
125 sw
->rate
= st_rate_start (sw
->info
.freq
, sw
->hw
->info
.freq
);
127 sw
->rate
= st_rate_start (sw
->hw
->info
.freq
, sw
->info
.freq
);
137 static int glue (audio_pcm_sw_init_
, TYPE
) (
141 struct audsettings
*as
146 audio_pcm_init_info (&sw
->info
, as
);
150 sw
->ratio
= ((int64_t) sw
->hw
->info
.freq
<< 32) / sw
->info
.freq
;
151 sw
->total_hw_samples_mixed
= 0;
154 sw
->ratio
= ((int64_t) sw
->info
.freq
<< 32) / sw
->hw
->info
.freq
;
157 if (sw
->info
.is_float
) {
159 sw
->conv
= mixeng_conv_float
[sw
->info
.nchannels
== 2];
161 sw
->clip
= mixeng_clip_float
[sw
->info
.nchannels
== 2];
165 sw
->conv
= mixeng_conv
167 sw
->clip
= mixeng_clip
169 [sw
->info
.nchannels
== 2]
171 [sw
->info
.swap_endianness
]
172 [audio_bits_to_index(sw
->info
.bits
)];
175 sw
->name
= g_strdup (name
);
176 err
= glue (audio_pcm_sw_alloc_resources_
, TYPE
) (sw
);
184 static void glue (audio_pcm_sw_fini_
, TYPE
) (SW
*sw
)
186 glue (audio_pcm_sw_free_resources_
, TYPE
) (sw
);
191 static void glue (audio_pcm_hw_add_sw_
, TYPE
) (HW
*hw
, SW
*sw
)
193 QLIST_INSERT_HEAD (&hw
->sw_head
, sw
, entries
);
196 static void glue (audio_pcm_hw_del_sw_
, TYPE
) (SW
*sw
)
198 QLIST_REMOVE (sw
, entries
);
201 static void glue (audio_pcm_hw_gc_
, TYPE
) (HW
**hwp
)
204 AudioState
*s
= hw
->s
;
206 if (!hw
->sw_head
.lh_first
) {
208 audio_detach_capture(hw
);
210 QLIST_REMOVE(hw
, entries
);
211 glue(hw
->pcm_ops
->fini_
, TYPE
) (hw
);
212 glue(s
->nb_hw_voices_
, TYPE
) += 1;
213 glue(audio_pcm_hw_free_resources_
, TYPE
) (hw
);
219 static HW
*glue(audio_pcm_hw_find_any_
, TYPE
)(AudioState
*s
, HW
*hw
)
221 return hw
? hw
->entries
.le_next
: glue (s
->hw_head_
, TYPE
).lh_first
;
224 static HW
*glue(audio_pcm_hw_find_any_enabled_
, TYPE
)(AudioState
*s
, HW
*hw
)
226 while ((hw
= glue(audio_pcm_hw_find_any_
, TYPE
)(s
, hw
))) {
234 static HW
*glue(audio_pcm_hw_find_specific_
, TYPE
)(AudioState
*s
, HW
*hw
,
235 struct audsettings
*as
)
237 while ((hw
= glue(audio_pcm_hw_find_any_
, TYPE
)(s
, hw
))) {
238 if (audio_pcm_info_eq (&hw
->info
, as
)) {
245 static HW
*glue(audio_pcm_hw_add_new_
, TYPE
)(AudioState
*s
,
246 struct audsettings
*as
)
249 struct audio_driver
*drv
= s
->drv
;
251 if (!glue (s
->nb_hw_voices_
, TYPE
)) {
255 if (audio_bug(__func__
, !drv
)) {
256 dolog ("No host audio driver\n");
260 if (audio_bug(__func__
, !drv
->pcm_ops
)) {
261 dolog ("Host audio driver without pcm_ops\n");
265 hw
= audio_calloc(__func__
, 1, glue(drv
->voice_size_
, TYPE
));
267 dolog ("Can not allocate voice `%s' size %d\n",
268 drv
->name
, glue (drv
->voice_size_
, TYPE
));
273 hw
->pcm_ops
= drv
->pcm_ops
;
275 QLIST_INIT (&hw
->sw_head
);
277 QLIST_INIT (&hw
->cap_head
);
279 if (glue (hw
->pcm_ops
->init_
, TYPE
) (hw
, as
, s
->drv_opaque
)) {
284 if (audio_bug(__func__
, hw
->samples
<= 0)) {
285 dolog("hw->samples=%zd\n", hw
->samples
);
289 if (hw
->info
.is_float
) {
291 hw
->clip
= mixeng_clip_float
[hw
->info
.nchannels
== 2];
293 hw
->conv
= mixeng_conv_float
[hw
->info
.nchannels
== 2];
297 hw
->clip
= mixeng_clip
299 hw
->conv
= mixeng_conv
301 [hw
->info
.nchannels
== 2]
303 [hw
->info
.swap_endianness
]
304 [audio_bits_to_index(hw
->info
.bits
)];
307 glue(audio_pcm_hw_alloc_resources_
, TYPE
)(hw
);
309 QLIST_INSERT_HEAD (&s
->glue (hw_head_
, TYPE
), hw
, entries
);
310 glue (s
->nb_hw_voices_
, TYPE
) -= 1;
312 audio_attach_capture (hw
);
317 AudiodevPerDirectionOptions
*glue(audio_get_pdo_
, TYPE
)(Audiodev
*dev
)
319 switch (dev
->driver
) {
320 case AUDIODEV_DRIVER_NONE
:
321 return dev
->u
.none
.TYPE
;
322 case AUDIODEV_DRIVER_ALSA
:
323 return qapi_AudiodevAlsaPerDirectionOptions_base(dev
->u
.alsa
.TYPE
);
324 case AUDIODEV_DRIVER_COREAUDIO
:
325 return qapi_AudiodevCoreaudioPerDirectionOptions_base(
326 dev
->u
.coreaudio
.TYPE
);
327 case AUDIODEV_DRIVER_DBUS
:
328 return dev
->u
.dbus
.TYPE
;
329 case AUDIODEV_DRIVER_DSOUND
:
330 return dev
->u
.dsound
.TYPE
;
331 case AUDIODEV_DRIVER_JACK
:
332 return qapi_AudiodevJackPerDirectionOptions_base(dev
->u
.jack
.TYPE
);
333 case AUDIODEV_DRIVER_OSS
:
334 return qapi_AudiodevOssPerDirectionOptions_base(dev
->u
.oss
.TYPE
);
335 case AUDIODEV_DRIVER_PA
:
336 return qapi_AudiodevPaPerDirectionOptions_base(dev
->u
.pa
.TYPE
);
337 case AUDIODEV_DRIVER_SDL
:
338 return qapi_AudiodevSdlPerDirectionOptions_base(dev
->u
.sdl
.TYPE
);
339 case AUDIODEV_DRIVER_SPICE
:
340 return dev
->u
.spice
.TYPE
;
341 case AUDIODEV_DRIVER_WAV
:
342 return dev
->u
.wav
.TYPE
;
344 case AUDIODEV_DRIVER__MAX
:
350 static HW
*glue(audio_pcm_hw_add_
, TYPE
)(AudioState
*s
, struct audsettings
*as
)
353 AudiodevPerDirectionOptions
*pdo
= glue(audio_get_pdo_
, TYPE
)(s
->dev
);
355 if (!pdo
->mixing_engine
|| pdo
->fixed_settings
) {
356 hw
= glue(audio_pcm_hw_add_new_
, TYPE
)(s
, as
);
357 if (!pdo
->mixing_engine
|| hw
) {
362 hw
= glue(audio_pcm_hw_find_specific_
, TYPE
)(s
, NULL
, as
);
367 hw
= glue(audio_pcm_hw_add_new_
, TYPE
)(s
, as
);
372 return glue(audio_pcm_hw_find_any_
, TYPE
)(s
, NULL
);
375 static SW
*glue(audio_pcm_create_voice_pair_
, TYPE
)(
378 struct audsettings
*as
383 struct audsettings hw_as
;
384 AudiodevPerDirectionOptions
*pdo
= glue(audio_get_pdo_
, TYPE
)(s
->dev
);
386 if (pdo
->fixed_settings
) {
387 hw_as
= audiodev_to_audsettings(pdo
);
392 sw
= audio_calloc(__func__
, 1, sizeof(*sw
));
394 dolog ("Could not allocate soft voice `%s' (%zu bytes)\n",
395 sw_name
? sw_name
: "unknown", sizeof (*sw
));
400 hw
= glue(audio_pcm_hw_add_
, TYPE
)(s
, &hw_as
);
405 glue (audio_pcm_hw_add_sw_
, TYPE
) (hw
, sw
);
407 if (glue (audio_pcm_sw_init_
, TYPE
) (sw
, hw
, sw_name
, as
)) {
414 glue (audio_pcm_hw_del_sw_
, TYPE
) (sw
);
415 glue (audio_pcm_hw_gc_
, TYPE
) (&hw
);
422 static void glue (audio_close_
, TYPE
) (SW
*sw
)
424 glue (audio_pcm_sw_fini_
, TYPE
) (sw
);
425 glue (audio_pcm_hw_del_sw_
, TYPE
) (sw
);
426 glue (audio_pcm_hw_gc_
, TYPE
) (&sw
->hw
);
430 void glue (AUD_close_
, TYPE
) (QEMUSoundCard
*card
, SW
*sw
)
433 if (audio_bug(__func__
, !card
)) {
434 dolog ("card=%p\n", card
);
438 glue (audio_close_
, TYPE
) (sw
);
442 SW
*glue (AUD_open_
, TYPE
) (
446 void *callback_opaque
,
447 audio_callback_fn callback_fn
,
448 struct audsettings
*as
452 AudiodevPerDirectionOptions
*pdo
;
454 if (audio_bug(__func__
, !card
|| !name
|| !callback_fn
|| !as
)) {
455 dolog ("card=%p name=%p callback_fn=%p as=%p\n",
456 card
, name
, callback_fn
, as
);
461 pdo
= glue(audio_get_pdo_
, TYPE
)(s
->dev
);
463 ldebug ("open %s, freq %d, nchannels %d, fmt %d\n",
464 name
, as
->freq
, as
->nchannels
, as
->fmt
);
466 if (audio_bug(__func__
, audio_validate_settings(as
))) {
467 audio_print_settings (as
);
471 if (audio_bug(__func__
, !s
->drv
)) {
472 dolog ("Can not open `%s' (no host audio driver)\n", name
);
476 if (sw
&& audio_pcm_info_eq (&sw
->info
, as
)) {
480 if (!pdo
->fixed_settings
&& sw
) {
481 glue (AUD_close_
, TYPE
) (card
, sw
);
489 dolog ("Internal logic error voice `%s' has no hardware store\n",
494 glue (audio_pcm_sw_fini_
, TYPE
) (sw
);
495 if (glue (audio_pcm_sw_init_
, TYPE
) (sw
, hw
, name
, as
)) {
499 sw
= glue(audio_pcm_create_voice_pair_
, TYPE
)(s
, name
, as
);
501 dolog ("Failed to create voice `%s'\n", name
);
507 sw
->vol
= nominal_volume
;
508 sw
->callback
.fn
= callback_fn
;
509 sw
->callback
.opaque
= callback_opaque
;
512 dolog ("%s\n", name
);
513 audio_pcm_print_info ("hw", &sw
->hw
->info
);
514 audio_pcm_print_info ("sw", &sw
->info
);
520 glue (AUD_close_
, TYPE
) (card
, sw
);
524 int glue (AUD_is_active_
, TYPE
) (SW
*sw
)
526 return sw
? sw
->active
: 0;
529 void glue (AUD_init_time_stamp_
, TYPE
) (SW
*sw
, QEMUAudioTimeStamp
*ts
)
535 ts
->old_ts
= sw
->hw
->ts_helper
;
538 uint64_t glue (AUD_get_elapsed_usec_
, TYPE
) (SW
*sw
, QEMUAudioTimeStamp
*ts
)
540 uint64_t delta
, cur_ts
, old_ts
;
546 cur_ts
= sw
->hw
->ts_helper
;
548 /* dolog ("cur %" PRId64 " old %" PRId64 "\n", cur_ts, old_ts); */
550 if (cur_ts
>= old_ts
) {
551 delta
= cur_ts
- old_ts
;
553 delta
= UINT64_MAX
- old_ts
+ cur_ts
;
560 return muldiv64 (delta
, sw
->hw
->info
.freq
, 1000000);