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) (
41 struct audio_driver *drv
44 int max_voices = glue (drv->max_voices_, TYPE);
45 int voice_size = glue (drv->voice_size_, TYPE);
47 if (glue (s->nb_hw_voices_, TYPE) > max_voices) {
50 dolog ("Driver `%s' does not support " NAME "\n", drv->name);
54 dolog ("Driver `%s' does not support %d " NAME " voices, max %d\n",
56 glue (s->nb_hw_voices_, TYPE),
59 glue (s->nb_hw_voices_, TYPE) = max_voices;
62 if (audio_bug (AUDIO_FUNC, !voice_size && max_voices)) {
63 dolog ("drv=`%s' voice_size=0 max_voices=%d\n",
64 drv->name, max_voices);
65 glue (s->nb_hw_voices_, TYPE) = 0;
68 if (audio_bug (AUDIO_FUNC, voice_size && !max_voices)) {
69 dolog ("drv=`%s' voice_size=%d max_voices=0\n",
70 drv->name, voice_size);
74 static void glue (audio_pcm_hw_free_resources_, TYPE) (HW *hw)
83 static int glue (audio_pcm_hw_alloc_resources_, TYPE) (HW *hw)
85 HWBUF = audio_calloc (AUDIO_FUNC, hw->samples, sizeof (struct st_sample));
87 dolog ("Could not allocate " NAME " buffer (%d samples)\n",
95 static void glue (audio_pcm_sw_free_resources_, TYPE) (SW *sw)
102 st_rate_stop (sw->rate);
109 static int glue (audio_pcm_sw_alloc_resources_, TYPE) (SW *sw)
114 samples = sw->hw->samples;
116 samples = ((int64_t) sw->hw->samples << 32) / sw->ratio;
119 sw->buf = audio_calloc (AUDIO_FUNC, samples, sizeof (struct st_sample));
121 dolog ("Could not allocate buffer for `%s' (%d samples)\n",
122 SW_NAME (sw), samples);
127 sw->rate = st_rate_start (sw->info.freq, sw->hw->info.freq);
129 sw->rate = st_rate_start (sw->hw->info.freq, sw->info.freq);
139 static int glue (audio_pcm_sw_init_, TYPE) (
143 struct audsettings *as
148 audio_pcm_init_info (&sw->info, as);
152 sw->ratio = ((int64_t) sw->hw->info.freq << 32) / sw->info.freq;
153 sw->total_hw_samples_mixed = 0;
156 sw->ratio = ((int64_t) sw->info.freq << 32) / sw->hw->info.freq;
160 sw->conv = mixeng_conv
162 sw->clip = mixeng_clip
164 [sw->info.nchannels == 2]
166 [sw->info.swap_endianness]
167 [audio_bits_to_index (sw->info.bits)];
169 sw->name = qemu_strdup (name);
170 err = glue (audio_pcm_sw_alloc_resources_, TYPE) (sw);
172 qemu_free (sw->name);
178 static void glue (audio_pcm_sw_fini_, TYPE) (SW *sw)
180 glue (audio_pcm_sw_free_resources_, TYPE) (sw);
182 qemu_free (sw->name);
187 static void glue (audio_pcm_hw_add_sw_, TYPE) (HW *hw, SW *sw)
189 LIST_INSERT_HEAD (&hw->sw_head, sw, entries);
192 static void glue (audio_pcm_hw_del_sw_, TYPE) (SW *sw)
194 LIST_REMOVE (sw, entries);
197 static void glue (audio_pcm_hw_gc_, TYPE) (AudioState *s, HW **hwp)
201 if (!hw->sw_head.lh_first) {
203 audio_detach_capture (hw);
205 LIST_REMOVE (hw, entries);
206 glue (s->nb_hw_voices_, TYPE) += 1;
207 glue (audio_pcm_hw_free_resources_ ,TYPE) (hw);
208 glue (hw->pcm_ops->fini_, TYPE) (hw);
214 static HW *glue (audio_pcm_hw_find_any_, TYPE) (AudioState *s, HW *hw)
216 return hw ? hw->entries.le_next : s->glue (hw_head_, TYPE).lh_first;
219 static HW *glue (audio_pcm_hw_find_any_enabled_, TYPE) (AudioState *s, HW *hw)
221 while ((hw = glue (audio_pcm_hw_find_any_, TYPE) (s, hw))) {
229 static HW *glue (audio_pcm_hw_find_specific_, TYPE) (
232 struct audsettings *as
235 while ((hw = glue (audio_pcm_hw_find_any_, TYPE) (s, hw))) {
236 if (audio_pcm_info_eq (&hw->info, as)) {
243 static HW *glue (audio_pcm_hw_add_new_, TYPE) (AudioState *s,
244 struct audsettings *as)
247 struct audio_driver *drv = s->drv;
249 if (!glue (s->nb_hw_voices_, TYPE)) {
253 if (audio_bug (AUDIO_FUNC, !drv)) {
254 dolog ("No host audio driver\n");
258 if (audio_bug (AUDIO_FUNC, !drv->pcm_ops)) {
259 dolog ("Host audio driver without pcm_ops\n");
263 hw = audio_calloc (AUDIO_FUNC, 1, glue (drv->voice_size_, TYPE));
265 dolog ("Can not allocate voice `%s' size %d\n",
266 drv->name, glue (drv->voice_size_, TYPE));
270 hw->pcm_ops = drv->pcm_ops;
271 LIST_INIT (&hw->sw_head);
273 LIST_INIT (&hw->cap_head);
275 if (glue (hw->pcm_ops->init_, TYPE) (hw, as)) {
279 if (audio_bug (AUDIO_FUNC, hw->samples <= 0)) {
280 dolog ("hw->samples=%d\n", hw->samples);
285 hw->clip = mixeng_clip
287 hw->conv = mixeng_conv
289 [hw->info.nchannels == 2]
291 [hw->info.swap_endianness]
292 [audio_bits_to_index (hw->info.bits)];
294 if (glue (audio_pcm_hw_alloc_resources_, TYPE) (hw)) {
298 LIST_INSERT_HEAD (&s->glue (hw_head_, TYPE), hw, entries);
299 glue (s->nb_hw_voices_, TYPE) -= 1;
301 audio_attach_capture (s, hw);
306 glue (hw->pcm_ops->fini_, TYPE) (hw);
312 static HW *glue (audio_pcm_hw_add_, TYPE) (AudioState *s,
313 struct audsettings *as)
317 if (glue (conf.fixed_, TYPE).enabled && glue (conf.fixed_, TYPE).greedy) {
318 hw = glue (audio_pcm_hw_add_new_, TYPE) (s, as);
324 hw = glue (audio_pcm_hw_find_specific_, TYPE) (s, NULL, as);
329 hw = glue (audio_pcm_hw_add_new_, TYPE) (s, as);
334 return glue (audio_pcm_hw_find_any_, TYPE) (s, NULL);
337 static SW *glue (audio_pcm_create_voice_pair_, TYPE) (
340 struct audsettings *as
345 struct audsettings hw_as;
347 if (glue (conf.fixed_, TYPE).enabled) {
348 hw_as = glue (conf.fixed_, TYPE).settings;
354 sw = audio_calloc (AUDIO_FUNC, 1, sizeof (*sw));
356 dolog ("Could not allocate soft voice `%s' (%zu bytes)\n",
357 sw_name ? sw_name : "unknown", sizeof (*sw));
361 hw = glue (audio_pcm_hw_add_, TYPE) (s, &hw_as);
366 glue (audio_pcm_hw_add_sw_, TYPE) (hw, sw);
368 if (glue (audio_pcm_sw_init_, TYPE) (sw, hw, sw_name, as)) {
375 glue (audio_pcm_hw_del_sw_, TYPE) (sw);
376 glue (audio_pcm_hw_gc_, TYPE) (s, &hw);
383 static void glue (audio_close_, TYPE) (AudioState *s, SW *sw)
385 glue (audio_pcm_sw_fini_, TYPE) (sw);
386 glue (audio_pcm_hw_del_sw_, TYPE) (sw);
387 glue (audio_pcm_hw_gc_, TYPE) (s, &sw->hw);
391 void glue (AUD_close_, TYPE) (QEMUSoundCard *card, SW *sw)
394 if (audio_bug (AUDIO_FUNC, !card || !card->audio)) {
395 dolog ("card=%p card->audio=%p\n",
396 card, card ? card->audio : NULL);
400 glue (audio_close_, TYPE) (card->audio, sw);
404 SW *glue (AUD_open_, TYPE) (
408 void *callback_opaque ,
409 audio_callback_fn_t callback_fn,
410 struct audsettings *as
419 ldebug ("open %s, freq %d, nchannels %d, fmt %d\n",
420 name, as->freq, as->nchannels, as->fmt);
422 if (audio_bug (AUDIO_FUNC,
423 !card || !card->audio || !name || !callback_fn || !as)) {
424 dolog ("card=%p card->audio=%p name=%p callback_fn=%p as=%p\n",
425 card, card ? card->audio : NULL, name, callback_fn, as);
431 if (audio_bug (AUDIO_FUNC, audio_validate_settings (as))) {
432 audio_print_settings (as);
436 if (audio_bug (AUDIO_FUNC, !s->drv)) {
437 dolog ("Can not open `%s' (no host audio driver)\n", name);
441 if (sw && audio_pcm_info_eq (&sw->info, as)) {
446 if (conf.plive && sw && (!sw->active && !sw->empty)) {
447 live = sw->total_hw_samples_mixed;
450 dolog ("Replacing voice %s with %d live samples\n", SW_NAME (sw), live);
451 dolog ("Old %s freq %d, bits %d, channels %d\n",
452 SW_NAME (sw), sw->info.freq, sw->info.bits, sw->info.nchannels);
453 dolog ("New %s freq %d, bits %d, channels %d\n",
456 (fmt == AUD_FMT_S16 || fmt == AUD_FMT_U16) ? 16 : 8,
462 old_sw->callback.fn = NULL;
468 if (!glue (conf.fixed_, TYPE).enabled && sw) {
469 glue (AUD_close_, TYPE) (card, sw);
477 dolog ("Internal logic error voice `%s' has no hardware store\n",
482 glue (audio_pcm_sw_fini_, TYPE) (sw);
483 if (glue (audio_pcm_sw_init_, TYPE) (sw, hw, name, as)) {
488 sw = glue (audio_pcm_create_voice_pair_, TYPE) (s, name, as);
490 dolog ("Failed to create voice `%s'\n", name);
496 sw->vol = nominal_volume;
497 sw->callback.fn = callback_fn;
498 sw->callback.opaque = callback_opaque;
503 (live << old_sw->info.shift)
504 * old_sw->info.bytes_per_second
505 / sw->info.bytes_per_second;
508 dolog ("Silence will be mixed %d\n", mixed);
510 sw->total_hw_samples_mixed += mixed;
515 dolog ("%s\n", name);
516 audio_pcm_print_info ("hw", &sw->hw->info);
517 audio_pcm_print_info ("sw", &sw->info);
524 glue (AUD_close_, TYPE) (card, sw);
528 int glue (AUD_is_active_, TYPE) (SW *sw)
530 return sw ? sw->active : 0;
533 void glue (AUD_init_time_stamp_, TYPE) (SW *sw, QEMUAudioTimeStamp *ts)
539 ts->old_ts = sw->hw->ts_helper;
542 uint64_t glue (AUD_get_elapsed_usec_, TYPE) (SW *sw, QEMUAudioTimeStamp *ts)
544 uint64_t delta, cur_ts, old_ts;
550 cur_ts = sw->hw->ts_helper;
552 /* dolog ("cur %lld old %lld\n", cur_ts, old_ts); */
554 if (cur_ts >= old_ts) {
555 delta = cur_ts - old_ts;
558 delta = UINT64_MAX - old_ts + cur_ts;
565 return (delta * sw->hw->info.freq) / 1000000;