]> code.delx.au - pulseaudio/blob - src/pulsecore/sink.c
delx.au / code / pulseaudio / blob


083dbaaedbcf26e4ce21a411cec3682f4c77ef81
[pulseaudio] / src / pulsecore / sink.c
1 /***
2 This file is part of PulseAudio.
3
4 Copyright 2004-2006 Lennart Poettering
5 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
6
7 PulseAudio is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as published
9 by the Free Software Foundation; either version 2 of the License,
10 or (at your option) any later version.
11
12 PulseAudio is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 General Public License for more details.
16
17 You should have received a copy of the GNU Lesser General Public License
18 along with PulseAudio; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20 USA.
21 ***/
22
23 #ifdef HAVE_CONFIG_H
24 #include <config.h>
25 #endif
26
27 #include <stdlib.h>
28 #include <string.h>
29 #include <stdio.h>
30
31 #include <pulse/introspect.h>
32 #include <pulse/utf8.h>
33 #include <pulse/xmalloc.h>
34 #include <pulse/timeval.h>
35 #include <pulse/util.h>
36
37 #include <pulsecore/sink-input.h>
38 #include <pulsecore/namereg.h>
39 #include <pulsecore/core-util.h>
40 #include <pulsecore/sample-util.h>
41 #include <pulsecore/core-subscribe.h>
42 #include <pulsecore/log.h>
43 #include <pulsecore/macro.h>
44 #include <pulsecore/play-memblockq.h>
45
46 #include "sink.h"
47
48 #define MAX_MIX_CHANNELS 32
49 #define MIX_BUFFER_LENGTH (PA_PAGE_SIZE)
50 #define DEFAULT_MIN_LATENCY (4*PA_USEC_PER_MSEC)
51
52 static PA_DEFINE_CHECK_TYPE(pa_sink, pa_msgobject);
53
54 static void sink_free(pa_object *s);
55
56 pa_sink_new_data* pa_sink_new_data_init(pa_sink_new_data *data) {
57 pa_assert(data);
58
59 memset(data, 0, sizeof(*data));
60 data->proplist = pa_proplist_new();
61
62 return data;
63 }
64
65 void pa_sink_new_data_set_name(pa_sink_new_data *data, const char *name) {
66 pa_assert(data);
67
68 pa_xfree(data->name);
69 data->name = pa_xstrdup(name);
70 }
71
72 void pa_sink_new_data_set_sample_spec(pa_sink_new_data *data, const pa_sample_spec *spec) {
73 pa_assert(data);
74
75 if ((data->sample_spec_is_set = !!spec))
76 data->sample_spec = *spec;
77 }
78
79 void pa_sink_new_data_set_channel_map(pa_sink_new_data *data, const pa_channel_map *map) {
80 pa_assert(data);
81
82 if ((data->channel_map_is_set = !!map))
83 data->channel_map = *map;
84 }
85
86 void pa_sink_new_data_set_volume(pa_sink_new_data *data, const pa_cvolume *volume) {
87 pa_assert(data);
88
89 if ((data->volume_is_set = !!volume))
90 data->volume = *volume;
91 }
92
93 void pa_sink_new_data_set_muted(pa_sink_new_data *data, pa_bool_t mute) {
94 pa_assert(data);
95
96 data->muted_is_set = TRUE;
97 data->muted = !!mute;
98 }
99
100 void pa_sink_new_data_done(pa_sink_new_data *data) {
101 pa_assert(data);
102
103 pa_xfree(data->name);
104 pa_proplist_free(data->proplist);
105 }
106
107 /* Called from main context */
108 static void reset_callbacks(pa_sink *s) {
109 pa_assert(s);
110
111 s->set_state = NULL;
112 s->get_volume = NULL;
113 s->set_volume = NULL;
114 s->get_mute = NULL;
115 s->set_mute = NULL;
116 s->request_rewind = NULL;
117 s->update_requested_latency = NULL;
118 }
119
120 /* Called from main context */
121 pa_sink* pa_sink_new(
122 pa_core *core,
123 pa_sink_new_data *data,
124 pa_sink_flags_t flags) {
125
126 pa_sink *s;
127 const char *name;
128 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
129 pa_source_new_data source_data;
130 const char *dn;
131
132 pa_assert(core);
133 pa_assert(data);
134 pa_assert(data->name);
135
136 s = pa_msgobject_new(pa_sink);
137
138 if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_SINK, s, data->namereg_fail))) {
139 pa_xfree(s);
140 return NULL;
141 }
142
143 pa_sink_new_data_set_name(data, name);
144
145 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_NEW], data) < 0) {
146 pa_xfree(s);
147 pa_namereg_unregister(core, name);
148 return NULL;
149 }
150
151 pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
152 pa_return_null_if_fail(data->name && pa_utf8_valid(data->name) && data->name[0]);
153
154 pa_return_null_if_fail(data->sample_spec_is_set && pa_sample_spec_valid(&data->sample_spec));
155
156 if (!data->channel_map_is_set)
157 pa_return_null_if_fail(pa_channel_map_init_auto(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT));
158
159 pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
160 pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels);
161
162 if (!data->volume_is_set)
163 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
164
165 pa_return_null_if_fail(pa_cvolume_valid(&data->volume));
166 pa_return_null_if_fail(data->volume.channels == data->sample_spec.channels);
167
168 if (!data->muted_is_set)
169 data->muted = FALSE;
170
171 if (data->card)
172 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->card->proplist);
173
174 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_FIXATE], data) < 0) {
175 pa_xfree(s);
176 pa_namereg_unregister(core, name);
177 return NULL;
178 }
179
180 s->parent.parent.free = sink_free;
181 s->parent.process_msg = pa_sink_process_msg;
182
183 s->core = core;
184 s->state = PA_SINK_INIT;
185 s->flags = flags;
186 s->name = pa_xstrdup(name);
187 s->proplist = pa_proplist_copy(data->proplist);
188 s->driver = pa_xstrdup(pa_path_get_filename(data->driver));
189 s->module = data->module;
190 s->card = data->card;
191
192 s->sample_spec = data->sample_spec;
193 s->channel_map = data->channel_map;
194
195 s->inputs = pa_idxset_new(NULL, NULL);
196 s->n_corked = 0;
197
198 s->volume = data->volume;
199 s->base_volume = PA_VOLUME_NORM;
200 s->virtual_volume = s->volume;
201
202 s->muted = data->muted;
203 s->refresh_volume = s->refresh_muted = FALSE;
204
205 reset_callbacks(s);
206 s->userdata = NULL;
207
208 s->asyncmsgq = NULL;
209 s->rtpoll = NULL;
210
211 pa_silence_memchunk_get(
212 &core->silence_cache,
213 core->mempool,
214 &s->silence,
215 &s->sample_spec,
216 0);
217
218 s->thread_info.inputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
219 pa_cvolume_reset(&s->thread_info.soft_volume, s->sample_spec.channels);
220 s->thread_info.soft_muted = FALSE;
221 s->thread_info.state = s->state;
222 s->thread_info.rewind_nbytes = 0;
223 s->thread_info.rewind_requested = FALSE;
224 s->thread_info.max_rewind = 0;
225 s->thread_info.max_request = 0;
226 s->thread_info.requested_latency_valid = FALSE;
227 s->thread_info.requested_latency = 0;
228 s->thread_info.min_latency = DEFAULT_MIN_LATENCY;
229 s->thread_info.max_latency = 0;
230
231 pa_assert_se(pa_idxset_put(core->sinks, s, &s->index) >= 0);
232
233 if (s->card)
234 pa_assert_se(pa_idxset_put(s->card->sinks, s, NULL) >= 0);
235
236 pa_log_info("Created sink %u \"%s\" with sample spec %s and channel map %s",
237 s->index,
238 s->name,
239 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
240 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map));
241
242 pa_source_new_data_init(&source_data);
243 pa_source_new_data_set_sample_spec(&source_data, &s->sample_spec);
244 pa_source_new_data_set_channel_map(&source_data, &s->channel_map);
245 source_data.name = pa_sprintf_malloc("%s.monitor", name);
246 source_data.driver = data->driver;
247 source_data.module = data->module;
248 source_data.card = data->card;
249
250 dn = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
251 pa_proplist_setf(source_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Monitor of %s", dn ? dn : s->name);
252 pa_proplist_sets(source_data.proplist, PA_PROP_DEVICE_CLASS, "monitor");
253
254 s->monitor_source = pa_source_new(core, &source_data, PA_SOURCE_LATENCY);
255
256 pa_source_new_data_done(&source_data);
257
258 if (!s->monitor_source) {
259 pa_sink_unlink(s);
260 pa_sink_unref(s);
261 return NULL;
262 }
263
264 s->monitor_source->monitor_of = s;
265
266 pa_source_set_latency_range(s->monitor_source, s->thread_info.min_latency, s->thread_info.max_latency);
267 pa_source_set_max_rewind(s->monitor_source, s->thread_info.max_rewind);
268
269 return s;
270 }
271
272 /* Called from main context */
273 static int sink_set_state(pa_sink *s, pa_sink_state_t state) {
274 int ret;
275 pa_bool_t suspend_change;
276 pa_sink_state_t original_state;
277
278 pa_assert(s);
279
280 if (s->state == state)
281 return 0;
282
283 original_state = s->state;
284
285 suspend_change =
286 (original_state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(state)) ||
287 (PA_SINK_IS_OPENED(original_state) && state == PA_SINK_SUSPENDED);
288
289 if (s->set_state)
290 if ((ret = s->set_state(s, state)) < 0)
291 return ret;
292
293 if (s->asyncmsgq)
294 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL)) < 0) {
295
296 if (s->set_state)
297 s->set_state(s, original_state);
298
299 return ret;
300 }
301
302 s->state = state;
303
304 if (suspend_change) {
305 pa_sink_input *i;
306 uint32_t idx;
307
308 /* We're suspending or resuming, tell everyone about it */
309
310 for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx)))
311 if (i->suspend)
312 i->suspend(i, state == PA_SINK_SUSPENDED);
313 }
314
315 if (state != PA_SINK_UNLINKED) { /* if we enter UNLINKED state pa_sink_unlink() will fire the apropriate events */
316 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], s);
317 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
318 }
319
320 return 0;
321 }
322
323 /* Called from main context */
324 void pa_sink_put(pa_sink* s) {
325 pa_sink_assert_ref(s);
326
327 pa_assert(s->state == PA_SINK_INIT);
328
329 /* The following fields must be initialized properly when calling _put() */
330 pa_assert(s->asyncmsgq);
331 pa_assert(s->rtpoll);
332 pa_assert(!s->thread_info.min_latency || !s->thread_info.max_latency ||
333 s->thread_info.min_latency <= s->thread_info.max_latency);
334
335 if (!(s->flags & PA_SINK_HW_VOLUME_CTRL)) {
336 s->flags |= PA_SINK_DECIBEL_VOLUME;
337
338 s->thread_info.soft_volume = s->volume;
339 s->thread_info.soft_muted = s->muted;
340 }
341
342 pa_assert_se(sink_set_state(s, PA_SINK_IDLE) == 0);
343
344 pa_source_put(s->monitor_source);
345
346 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_NEW, s->index);
347 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PUT], s);
348 }
349
350 /* Called from main context */
351 void pa_sink_unlink(pa_sink* s) {
352 pa_bool_t linked;
353 pa_sink_input *i, *j = NULL;
354
355 pa_assert(s);
356
357 /* Please note that pa_sink_unlink() does more than simply
358 * reversing pa_sink_put(). It also undoes the registrations
359 * already done in pa_sink_new()! */
360
361 /* All operations here shall be idempotent, i.e. pa_sink_unlink()
362 * may be called multiple times on the same sink without bad
363 * effects. */
364
365 linked = PA_SINK_IS_LINKED(s->state);
366
367 if (linked)
368 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK], s);
369
370 if (s->state != PA_SINK_UNLINKED)
371 pa_namereg_unregister(s->core, s->name);
372 pa_idxset_remove_by_data(s->core->sinks, s, NULL);
373
374 if (s->card)
375 pa_idxset_remove_by_data(s->card->sinks, s, NULL);
376
377 while ((i = pa_idxset_first(s->inputs, NULL))) {
378 pa_assert(i != j);
379 pa_sink_input_kill(i);
380 j = i;
381 }
382
383 if (linked)
384 sink_set_state(s, PA_SINK_UNLINKED);
385 else
386 s->state = PA_SINK_UNLINKED;
387
388 reset_callbacks(s);
389
390 if (s->monitor_source)
391 pa_source_unlink(s->monitor_source);
392
393 if (linked) {
394 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
395 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], s);
396 }
397 }
398
399 /* Called from main context */
400 static void sink_free(pa_object *o) {
401 pa_sink *s = PA_SINK(o);
402 pa_sink_input *i;
403
404 pa_assert(s);
405 pa_assert(pa_sink_refcnt(s) == 0);
406
407 if (PA_SINK_IS_LINKED(s->state))
408 pa_sink_unlink(s);
409
410 pa_log_info("Freeing sink %u \"%s\"", s->index, s->name);
411
412 if (s->monitor_source) {
413 pa_source_unref(s->monitor_source);
414 s->monitor_source = NULL;
415 }
416
417 pa_idxset_free(s->inputs, NULL, NULL);
418
419 while ((i = pa_hashmap_steal_first(s->thread_info.inputs)))
420 pa_sink_input_unref(i);
421
422 pa_hashmap_free(s->thread_info.inputs, NULL, NULL);
423
424 if (s->silence.memblock)
425 pa_memblock_unref(s->silence.memblock);
426
427 pa_xfree(s->name);
428 pa_xfree(s->driver);
429
430 if (s->proplist)
431 pa_proplist_free(s->proplist);
432
433 pa_xfree(s);
434 }
435
436 /* Called from main context */
437 void pa_sink_set_asyncmsgq(pa_sink *s, pa_asyncmsgq *q) {
438 pa_sink_assert_ref(s);
439
440 s->asyncmsgq = q;
441
442 if (s->monitor_source)
443 pa_source_set_asyncmsgq(s->monitor_source, q);
444 }
445
446 /* Called from main context */
447 void pa_sink_set_rtpoll(pa_sink *s, pa_rtpoll *p) {
448 pa_sink_assert_ref(s);
449
450 s->rtpoll = p;
451 if (s->monitor_source)
452 pa_source_set_rtpoll(s->monitor_source, p);
453 }
454
455 /* Called from main context */
456 int pa_sink_update_status(pa_sink*s) {
457 pa_sink_assert_ref(s);
458 pa_assert(PA_SINK_IS_LINKED(s->state));
459
460 if (s->state == PA_SINK_SUSPENDED)
461 return 0;
462
463 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
464 }
465
466 /* Called from main context */
467 int pa_sink_suspend(pa_sink *s, pa_bool_t suspend) {
468 pa_sink_assert_ref(s);
469 pa_assert(PA_SINK_IS_LINKED(s->state));
470
471 if (suspend)
472 return sink_set_state(s, PA_SINK_SUSPENDED);
473 else
474 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
475 }
476
477 /* Called from main context */
478 pa_queue *pa_sink_move_all_start(pa_sink *s) {
479 pa_queue *q;
480 pa_sink_input *i, *n;
481 uint32_t idx;
482
483 pa_sink_assert_ref(s);
484 pa_assert(PA_SINK_IS_LINKED(s->state));
485
486 q = pa_queue_new();
487
488 for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = n) {
489 n = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx));
490
491 if (pa_sink_input_start_move(i) >= 0)
492 pa_queue_push(q, pa_sink_input_ref(i));
493 }
494
495 return q;
496 }
497
498 /* Called from main context */
499 void pa_sink_move_all_finish(pa_sink *s, pa_queue *q) {
500 pa_sink_input *i;
501
502 pa_sink_assert_ref(s);
503 pa_assert(PA_SINK_IS_LINKED(s->state));
504 pa_assert(q);
505
506 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
507 if (pa_sink_input_finish_move(i, s) < 0)
508 pa_sink_input_unlink(i);
509
510 pa_sink_input_unref(i);
511 }
512
513 pa_queue_free(q, NULL, NULL);
514 }
515
516 /* Called from main context */
517 void pa_sink_move_all_fail(pa_queue *q) {
518 pa_sink_input *i;
519 pa_assert(q);
520
521 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
522 pa_sink_input_unlink(i);
523 pa_sink_input_unref(i);
524 }
525
526 pa_queue_free(q, NULL, NULL);
527 }
528
529 /* Called from IO thread context */
530 void pa_sink_process_rewind(pa_sink *s, size_t nbytes) {
531 pa_sink_input *i;
532 void *state = NULL;
533 pa_sink_assert_ref(s);
534 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
535
536 s->thread_info.rewind_nbytes = 0;
537 s->thread_info.rewind_requested = FALSE;
538
539 if (nbytes > 0)
540 pa_log_debug("Processing rewind...");
541
542 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL))) {
543 pa_sink_input_assert_ref(i);
544 pa_sink_input_process_rewind(i, nbytes);
545 }
546
547 if (nbytes > 0)
548 if (s->monitor_source && PA_SOURCE_IS_OPENED(s->monitor_source->thread_info.state))
549 pa_source_process_rewind(s->monitor_source, nbytes);
550 }
551
552 /* Called from IO thread context */
553 static unsigned fill_mix_info(pa_sink *s, size_t *length, pa_mix_info *info, unsigned maxinfo) {
554 pa_sink_input *i;
555 unsigned n = 0;
556 void *state = NULL;
557 size_t mixlength = *length;
558
559 pa_sink_assert_ref(s);
560 pa_assert(info);
561
562 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)) && maxinfo > 0) {
563 pa_sink_input_assert_ref(i);
564
565 if (pa_sink_input_peek(i, *length, &info->chunk, &info->volume) < 0)
566 continue;
567
568 if (mixlength == 0 || info->chunk.length < mixlength)
569 mixlength = info->chunk.length;
570
571 if (pa_memblock_is_silence(info->chunk.memblock)) {
572 pa_memblock_unref(info->chunk.memblock);
573 continue;
574 }
575
576 info->userdata = pa_sink_input_ref(i);
577
578 pa_assert(info->chunk.memblock);
579 pa_assert(info->chunk.length > 0);
580
581 info++;
582 n++;
583 maxinfo--;
584 }
585
586 if (mixlength > 0)
587 *length = mixlength;
588
589 return n;
590 }
591
592 /* Called from IO thread context */
593 static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned n, pa_memchunk *result) {
594 pa_sink_input *i;
595 void *state = NULL;
596 unsigned p = 0;
597 unsigned n_unreffed = 0;
598
599 pa_sink_assert_ref(s);
600 pa_assert(result);
601 pa_assert(result->memblock);
602 pa_assert(result->length > 0);
603
604 /* We optimize for the case where the order of the inputs has not changed */
605
606 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL))) {
607 unsigned j;
608 pa_mix_info* m = NULL;
609
610 pa_sink_input_assert_ref(i);
611
612 /* Let's try to find the matching entry info the pa_mix_info array */
613 for (j = 0; j < n; j ++) {
614
615 if (info[p].userdata == i) {
616 m = info + p;
617 break;
618 }
619
620 p++;
621 if (p >= n)
622 p = 0;
623 }
624
625 /* Drop read data */
626 pa_sink_input_drop(i, result->length);
627
628 if (s->monitor_source && PA_SOURCE_IS_OPENED(pa_source_get_state(s->monitor_source))) {
629
630 if (pa_hashmap_size(i->thread_info.direct_outputs) > 0) {
631 void *ostate = NULL;
632 pa_source_output *o;
633 pa_memchunk c;
634
635 if (m && m->chunk.memblock) {
636 c = m->chunk;
637 pa_memblock_ref(c.memblock);
638 pa_assert(result->length <= c.length);
639 c.length = result->length;
640
641 pa_memchunk_make_writable(&c, 0);
642 pa_volume_memchunk(&c, &s->sample_spec, &m->volume);
643 } else {
644 c = s->silence;
645 pa_memblock_ref(c.memblock);
646 pa_assert(result->length <= c.length);
647 c.length = result->length;
648 }
649
650 while ((o = pa_hashmap_iterate(i->thread_info.direct_outputs, &ostate, NULL))) {
651 pa_source_output_assert_ref(o);
652 pa_assert(o->direct_on_input == i);
653 pa_source_post_direct(s->monitor_source, o, &c);
654 }
655
656 pa_memblock_unref(c.memblock);
657 }
658 }
659
660 if (m) {
661 if (m->chunk.memblock)
662 pa_memblock_unref(m->chunk.memblock);
663 pa_memchunk_reset(&m->chunk);
664
665 pa_sink_input_unref(m->userdata);
666 m->userdata = NULL;
667
668 n_unreffed += 1;
669 }
670 }
671
672 /* Now drop references to entries that are included in the
673 * pa_mix_info array but don't exist anymore */
674
675 if (n_unreffed < n) {
676 for (; n > 0; info++, n--) {
677 if (info->userdata)
678 pa_sink_input_unref(info->userdata);
679 if (info->chunk.memblock)
680 pa_memblock_unref(info->chunk.memblock);
681 }
682 }
683
684 if (s->monitor_source && PA_SOURCE_IS_OPENED(pa_source_get_state(s->monitor_source)))
685 pa_source_post(s->monitor_source, result);
686 }
687
688 /* Called from IO thread context */
689 void pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) {
690 pa_mix_info info[MAX_MIX_CHANNELS];
691 unsigned n;
692 size_t block_size_max;
693
694 pa_sink_assert_ref(s);
695 pa_assert(PA_SINK_IS_OPENED(s->thread_info.state));
696 pa_assert(pa_frame_aligned(length, &s->sample_spec));
697 pa_assert(result);
698
699 pa_sink_ref(s);
700
701 pa_assert(!s->thread_info.rewind_requested);
702 pa_assert(s->thread_info.rewind_nbytes == 0);
703
704 if (length <= 0)
705 length = pa_frame_align(MIX_BUFFER_LENGTH, &s->sample_spec);
706
707 block_size_max = pa_mempool_block_size_max(s->core->mempool);
708 if (length > block_size_max)
709 length = pa_frame_align(block_size_max, &s->sample_spec);
710
711 pa_assert(length > 0);
712
713 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
714
715 if (n == 0) {
716
717 *result = s->silence;
718 pa_memblock_ref(result->memblock);
719
720 if (result->length > length)
721 result->length = length;
722
723 } else if (n == 1) {
724 pa_cvolume volume;
725
726 *result = info[0].chunk;
727 pa_memblock_ref(result->memblock);
728
729 if (result->length > length)
730 result->length = length;
731
732 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
733
734 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&volume)) {
735 pa_memchunk_make_writable(result, 0);
736 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume))
737 pa_silence_memchunk(result, &s->sample_spec);
738 else
739 pa_volume_memchunk(result, &s->sample_spec, &volume);
740 }
741 } else {
742 void *ptr;
743 result->memblock = pa_memblock_new(s->core->mempool, length);
744
745 ptr = pa_memblock_acquire(result->memblock);
746 result->length = pa_mix(info, n,
747 ptr, length,
748 &s->sample_spec,
749 &s->thread_info.soft_volume,
750 s->thread_info.soft_muted);
751 pa_memblock_release(result->memblock);
752
753 result->index = 0;
754 }
755
756 inputs_drop(s, info, n, result);
757
758 pa_sink_unref(s);
759 }
760
761 /* Called from IO thread context */
762 void pa_sink_render_into(pa_sink*s, pa_memchunk *target) {
763 pa_mix_info info[MAX_MIX_CHANNELS];
764 unsigned n;
765 size_t length, block_size_max;
766
767 pa_sink_assert_ref(s);
768 pa_assert(PA_SINK_IS_OPENED(s->thread_info.state));
769 pa_assert(target);
770 pa_assert(target->memblock);
771 pa_assert(target->length > 0);
772 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
773
774 pa_sink_ref(s);
775
776 pa_assert(!s->thread_info.rewind_requested);
777 pa_assert(s->thread_info.rewind_nbytes == 0);
778
779 length = target->length;
780 block_size_max = pa_mempool_block_size_max(s->core->mempool);
781 if (length > block_size_max)
782 length = pa_frame_align(block_size_max, &s->sample_spec);
783
784 pa_assert(length > 0);
785
786 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
787
788 if (n == 0) {
789 if (target->length > length)
790 target->length = length;
791
792 pa_silence_memchunk(target, &s->sample_spec);
793 } else if (n == 1) {
794 pa_cvolume volume;
795
796 if (target->length > length)
797 target->length = length;
798
799 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
800
801 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume))
802 pa_silence_memchunk(target, &s->sample_spec);
803 else {
804 pa_memchunk vchunk;
805
806 vchunk = info[0].chunk;
807 pa_memblock_ref(vchunk.memblock);
808
809 if (vchunk.length > length)
810 vchunk.length = length;
811
812 if (!pa_cvolume_is_norm(&volume)) {
813 pa_memchunk_make_writable(&vchunk, 0);
814 pa_volume_memchunk(&vchunk, &s->sample_spec, &volume);
815 }
816
817 pa_memchunk_memcpy(target, &vchunk);
818 pa_memblock_unref(vchunk.memblock);
819 }
820
821 } else {
822 void *ptr;
823
824 ptr = pa_memblock_acquire(target->memblock);
825
826 target->length = pa_mix(info, n,
827 (uint8_t*) ptr + target->index, length,
828 &s->sample_spec,
829 &s->thread_info.soft_volume,
830 s->thread_info.soft_muted);
831
832 pa_memblock_release(target->memblock);
833 }
834
835 inputs_drop(s, info, n, target);
836
837 pa_sink_unref(s);
838 }
839
840 /* Called from IO thread context */
841 void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
842 pa_memchunk chunk;
843 size_t l, d;
844
845 pa_sink_assert_ref(s);
846 pa_assert(PA_SINK_IS_OPENED(s->thread_info.state));
847 pa_assert(target);
848 pa_assert(target->memblock);
849 pa_assert(target->length > 0);
850 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
851
852 pa_sink_ref(s);
853
854 pa_assert(!s->thread_info.rewind_requested);
855 pa_assert(s->thread_info.rewind_nbytes == 0);
856
857 l = target->length;
858 d = 0;
859 while (l > 0) {
860 chunk = *target;
861 chunk.index += d;
862 chunk.length -= d;
863
864 pa_sink_render_into(s, &chunk);
865
866 d += chunk.length;
867 l -= chunk.length;
868 }
869
870 pa_sink_unref(s);
871 }
872
873 /* Called from IO thread context */
874 void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) {
875 pa_sink_assert_ref(s);
876 pa_assert(PA_SINK_IS_OPENED(s->thread_info.state));
877 pa_assert(length > 0);
878 pa_assert(pa_frame_aligned(length, &s->sample_spec));
879 pa_assert(result);
880
881 pa_assert(!s->thread_info.rewind_requested);
882 pa_assert(s->thread_info.rewind_nbytes == 0);
883
884 /*** This needs optimization ***/
885
886 result->index = 0;
887 result->length = length;
888 result->memblock = pa_memblock_new(s->core->mempool, length);
889
890 pa_sink_render_into_full(s, result);
891 }
892
893 /* Called from main thread */
894 pa_usec_t pa_sink_get_latency(pa_sink *s) {
895 pa_usec_t usec = 0;
896
897 pa_sink_assert_ref(s);
898 pa_assert(PA_SINK_IS_LINKED(s->state));
899
900 /* The returned value is supposed to be in the time domain of the sound card! */
901
902 if (!PA_SINK_IS_OPENED(s->state))
903 return 0;
904
905 if (!(s->flags & PA_SINK_LATENCY))
906 return 0;
907
908 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
909
910 return usec;
911 }
912
913 /* Called from main thread */
914 void pa_sink_set_volume(pa_sink *s, const pa_cvolume *volume) {
915 pa_bool_t changed;
916 pa_sink_set_volume_data data;
917
918 pa_sink_assert_ref(s);
919 pa_assert(PA_SINK_IS_LINKED(s->state));
920 pa_assert(volume);
921 pa_assert(pa_cvolume_valid(volume));
922 pa_assert(pa_cvolume_compatible(volume, &s->sample_spec));
923
924 data.sink = s;
925 data.virtual_volume = data.volume = *volume;
926
927 changed = !pa_cvolume_equal(&data.virtual_volume, &s->virtual_volume) ||
928 !pa_cvolume_equal(&data.volume, &s->volume);
929
930 if (changed) {
931 if (pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_SET_VOLUME], &data) < 0)
932 return;
933
934 changed = !pa_cvolume_equal(&data.virtual_volume, &s->virtual_volume); /* from client-side view */
935 }
936
937 s->volume = data.volume;
938 s->virtual_volume = data.virtual_volume;
939
940 if (s->set_volume && s->set_volume(s) < 0)
941 s->set_volume = NULL;
942
943 if (!s->set_volume)
944 pa_sink_set_soft_volume(s, &s->volume);
945
946 if (changed)
947 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
948 }
949
950 /* Called from main thread */
951 void pa_sink_set_soft_volume(pa_sink *s, const pa_cvolume *volume) {
952 pa_sink_assert_ref(s);
953 pa_assert(volume);
954
955 if (PA_SINK_IS_LINKED(s->state))
956 pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME, volume, 0, NULL);
957 else
958 s->thread_info.soft_volume = *volume;
959 }
960
961 /* Called from main thread */
962 const pa_cvolume *pa_sink_get_volume(pa_sink *s, pa_bool_t force_refresh) {
963 pa_sink_assert_ref(s);
964 pa_assert(PA_SINK_IS_LINKED(s->state));
965
966 if (s->refresh_volume || force_refresh) {
967 struct pa_cvolume old_volume = s->virtual_volume;
968
969 if (s->get_volume && s->get_volume(s) < 0)
970 s->get_volume = NULL;
971
972 if (!s->get_volume) {
973 pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_VOLUME, &s->volume, 0, NULL);
974 s->virtual_volume = s->volume;
975 }
976
977 if (!pa_cvolume_equal(&old_volume, &s->virtual_volume))
978 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
979 }
980
981 return &s->virtual_volume;
982 }
983
984 /* Called from main thread */
985 void pa_sink_set_mute(pa_sink *s, pa_bool_t mute) {
986 pa_bool_t changed;
987
988 pa_sink_assert_ref(s);
989 pa_assert(PA_SINK_IS_LINKED(s->state));
990
991 changed = s->muted != mute;
992 s->muted = mute;
993
994 if (s->set_mute && s->set_mute(s) < 0)
995 s->set_mute = NULL;
996
997 if (!s->set_mute)
998 pa_asyncmsgq_post(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, PA_UINT_TO_PTR(mute), 0, NULL, NULL);
999
1000 if (changed)
1001 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1002 }
1003
1004 /* Called from main thread */
1005 pa_bool_t pa_sink_get_mute(pa_sink *s, pa_bool_t force_refresh) {
1006
1007 pa_sink_assert_ref(s);
1008 pa_assert(PA_SINK_IS_LINKED(s->state));
1009
1010 if (s->refresh_muted || force_refresh) {
1011 pa_bool_t old_muted = s->muted;
1012
1013 if (s->get_mute && s->get_mute(s) < 0)
1014 s->get_mute = NULL;
1015
1016 if (!s->get_mute)
1017 pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MUTE, &s->muted, 0, NULL);
1018
1019 if (old_muted != s->muted)
1020 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1021 }
1022
1023 return s->muted;
1024 }
1025
1026 /* Called from main thread */
1027 pa_bool_t pa_sink_update_proplist(pa_sink *s, pa_update_mode_t mode, pa_proplist *p) {
1028
1029 pa_sink_assert_ref(s);
1030
1031 pa_proplist_update(s->proplist, mode, p);
1032
1033 if (PA_SINK_IS_LINKED(s->state)) {
1034 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
1035 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1036 }
1037
1038 return TRUE;
1039 }
1040
1041 /* Called from main thread */
1042 void pa_sink_set_description(pa_sink *s, const char *description) {
1043 const char *old;
1044 pa_sink_assert_ref(s);
1045
1046 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
1047 return;
1048
1049 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
1050
1051 if (old && description && !strcmp(old, description))
1052 return;
1053
1054 if (description)
1055 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
1056 else
1057 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
1058
1059 if (s->monitor_source) {
1060 char *n;
1061
1062 n = pa_sprintf_malloc("Monitor Source of %s", description ? description : s->name);
1063 pa_source_set_description(s->monitor_source, n);
1064 pa_xfree(n);
1065 }
1066
1067 if (PA_SINK_IS_LINKED(s->state)) {
1068 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1069 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
1070 }
1071 }
1072
1073 /* Called from main thread */
1074 unsigned pa_sink_linked_by(pa_sink *s) {
1075 unsigned ret;
1076
1077 pa_sink_assert_ref(s);
1078 pa_assert(PA_SINK_IS_LINKED(s->state));
1079
1080 ret = pa_idxset_size(s->inputs);
1081
1082 /* We add in the number of streams connected to us here. Please
1083 * note the asymmmetry to pa_sink_used_by()! */
1084
1085 if (s->monitor_source)
1086 ret += pa_source_linked_by(s->monitor_source);
1087
1088 return ret;
1089 }
1090
1091 /* Called from main thread */
1092 unsigned pa_sink_used_by(pa_sink *s) {
1093 unsigned ret;
1094
1095 pa_sink_assert_ref(s);
1096 pa_assert(PA_SINK_IS_LINKED(s->state));
1097
1098 ret = pa_idxset_size(s->inputs);
1099 pa_assert(ret >= s->n_corked);
1100
1101 /* Streams connected to our monitor source do not matter for
1102 * pa_sink_used_by()!.*/
1103
1104 return ret - s->n_corked;
1105 }
1106
1107 /* Called from main thread */
1108 unsigned pa_sink_check_suspend(pa_sink *s) {
1109 unsigned ret;
1110 pa_sink_input *i;
1111 uint32_t idx;
1112
1113 pa_sink_assert_ref(s);
1114
1115 if (!PA_SINK_IS_LINKED(s->state))
1116 return 0;
1117
1118 ret = 0;
1119
1120 for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx))) {
1121 pa_sink_input_state_t st;
1122
1123 st = pa_sink_input_get_state(i);
1124 pa_assert(PA_SINK_INPUT_IS_LINKED(st));
1125
1126 if (st == PA_SINK_INPUT_CORKED)
1127 continue;
1128
1129 if (i->flags & PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND)
1130 continue;
1131
1132 ret ++;
1133 }
1134
1135 if (s->monitor_source)
1136 ret += pa_source_check_suspend(s->monitor_source);
1137
1138 return ret;
1139 }
1140
1141 /* Called from IO thread, except when it is not */
1142 int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
1143 pa_sink *s = PA_SINK(o);
1144 pa_sink_assert_ref(s);
1145
1146 switch ((pa_sink_message_t) code) {
1147
1148 case PA_SINK_MESSAGE_ADD_INPUT: {
1149 pa_sink_input *i = PA_SINK_INPUT(userdata);
1150
1151 /* If you change anything here, make sure to change the
1152 * sink input handling a few lines down at
1153 * PA_SINK_MESSAGE_FINISH_MOVE, too. */
1154
1155 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
1156
1157 /* Since the caller sleeps in pa_sink_input_put(), we can
1158 * safely access data outside of thread_info even though
1159 * it is mutable */
1160
1161 if ((i->thread_info.sync_prev = i->sync_prev)) {
1162 pa_assert(i->sink == i->thread_info.sync_prev->sink);
1163 pa_assert(i->sync_prev->sync_next == i);
1164 i->thread_info.sync_prev->thread_info.sync_next = i;
1165 }
1166
1167 if ((i->thread_info.sync_next = i->sync_next)) {
1168 pa_assert(i->sink == i->thread_info.sync_next->sink);
1169 pa_assert(i->sync_next->sync_prev == i);
1170 i->thread_info.sync_next->thread_info.sync_prev = i;
1171 }
1172
1173 pa_assert(!i->thread_info.attached);
1174 i->thread_info.attached = TRUE;
1175
1176 if (i->attach)
1177 i->attach(i);
1178
1179 pa_sink_input_set_state_within_thread(i, i->state);
1180
1181 /* The requested latency of the sink input needs to be
1182 * fixed up and then configured on the sink */
1183
1184 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
1185 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
1186
1187 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
1188 pa_sink_input_update_max_request(i, s->thread_info.max_request);
1189
1190 /* We don't rewind here automatically. This is left to the
1191 * sink input implementor because some sink inputs need a
1192 * slow start, i.e. need some time to buffer client
1193 * samples before beginning streaming. */
1194
1195 return 0;
1196 }
1197
1198 case PA_SINK_MESSAGE_REMOVE_INPUT: {
1199 pa_sink_input *i = PA_SINK_INPUT(userdata);
1200
1201 /* If you change anything here, make sure to change the
1202 * sink input handling a few lines down at
1203 * PA_SINK_MESSAGE_PREPAPRE_MOVE, too. */
1204
1205 if (i->detach)
1206 i->detach(i);
1207
1208 pa_sink_input_set_state_within_thread(i, i->state);
1209
1210 pa_assert(i->thread_info.attached);
1211 i->thread_info.attached = FALSE;
1212
1213 /* Since the caller sleeps in pa_sink_input_unlink(),
1214 * we can safely access data outside of thread_info even
1215 * though it is mutable */
1216
1217 pa_assert(!i->sync_prev);
1218 pa_assert(!i->sync_next);
1219
1220 if (i->thread_info.sync_prev) {
1221 i->thread_info.sync_prev->thread_info.sync_next = i->thread_info.sync_prev->sync_next;
1222 i->thread_info.sync_prev = NULL;
1223 }
1224
1225 if (i->thread_info.sync_next) {
1226 i->thread_info.sync_next->thread_info.sync_prev = i->thread_info.sync_next->sync_prev;
1227 i->thread_info.sync_next = NULL;
1228 }
1229
1230 if (pa_hashmap_remove(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index)))
1231 pa_sink_input_unref(i);
1232
1233 pa_sink_invalidate_requested_latency(s);
1234 pa_sink_request_rewind(s, (size_t) -1);
1235
1236 return 0;
1237 }
1238
1239 case PA_SINK_MESSAGE_START_MOVE: {
1240 pa_sink_input *i = PA_SINK_INPUT(userdata);
1241
1242 /* We don't support moving synchronized streams. */
1243 pa_assert(!i->sync_prev);
1244 pa_assert(!i->sync_next);
1245 pa_assert(!i->thread_info.sync_next);
1246 pa_assert(!i->thread_info.sync_prev);
1247
1248 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
1249 pa_usec_t usec = 0;
1250 size_t sink_nbytes, total_nbytes;
1251
1252 /* Get the latency of the sink */
1253 if (!(s->flags & PA_SINK_LATENCY) ||
1254 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) < 0)
1255 usec = 0;
1256
1257 sink_nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
1258 total_nbytes = sink_nbytes + pa_memblockq_get_length(i->thread_info.render_memblockq);
1259
1260 if (total_nbytes > 0) {
1261 i->thread_info.rewrite_nbytes = i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, total_nbytes) : total_nbytes;
1262 i->thread_info.rewrite_flush = TRUE;
1263 pa_sink_input_process_rewind(i, sink_nbytes);
1264 }
1265 }
1266
1267 if (i->detach)
1268 i->detach(i);
1269
1270 pa_assert(i->thread_info.attached);
1271 i->thread_info.attached = FALSE;
1272
1273 /* Let's remove the sink input ...*/
1274 if (pa_hashmap_remove(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index)))
1275 pa_sink_input_unref(i);
1276
1277 pa_sink_invalidate_requested_latency(s);
1278
1279 pa_log_debug("Requesting rewind due to started move");
1280 pa_sink_request_rewind(s, (size_t) -1);
1281
1282 return 0;
1283 }
1284
1285 case PA_SINK_MESSAGE_FINISH_MOVE: {
1286 pa_sink_input *i = PA_SINK_INPUT(userdata);
1287
1288 /* We don't support moving synchronized streams. */
1289 pa_assert(!i->sync_prev);
1290 pa_assert(!i->sync_next);
1291 pa_assert(!i->thread_info.sync_next);
1292 pa_assert(!i->thread_info.sync_prev);
1293
1294 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
1295
1296 pa_assert(!i->thread_info.attached);
1297 i->thread_info.attached = TRUE;
1298
1299 if (i->attach)
1300 i->attach(i);
1301
1302 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
1303 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
1304
1305 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
1306 pa_sink_input_update_max_request(i, s->thread_info.max_request);
1307
1308 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
1309 pa_usec_t usec = 0;
1310 size_t nbytes;
1311
1312 /* Get the latency of the sink */
1313 if (!(s->flags & PA_SINK_LATENCY) ||
1314 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) < 0)
1315 usec = 0;
1316
1317 nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
1318
1319 if (nbytes > 0)
1320 pa_sink_input_drop(i, nbytes);
1321
1322 pa_log_debug("Requesting rewind due to finished move");
1323 pa_sink_request_rewind(s, nbytes);
1324 }
1325
1326 return 0;
1327 }
1328
1329 case PA_SINK_MESSAGE_SET_VOLUME:
1330 s->thread_info.soft_volume = *((pa_cvolume*) userdata);
1331
1332 pa_sink_request_rewind(s, (size_t) -1);
1333 return 0;
1334
1335 case PA_SINK_MESSAGE_SET_MUTE:
1336 s->thread_info.soft_muted = PA_PTR_TO_UINT(userdata);
1337
1338 pa_sink_request_rewind(s, (size_t) -1);
1339 return 0;
1340
1341 case PA_SINK_MESSAGE_GET_VOLUME:
1342 *((pa_cvolume*) userdata) = s->thread_info.soft_volume;
1343 return 0;
1344
1345 case PA_SINK_MESSAGE_GET_MUTE:
1346 *((pa_bool_t*) userdata) = s->thread_info.soft_muted;
1347 return 0;
1348
1349 case PA_SINK_MESSAGE_SET_STATE:
1350
1351 s->thread_info.state = PA_PTR_TO_UINT(userdata);
1352 return 0;
1353
1354 case PA_SINK_MESSAGE_DETACH:
1355
1356 /* Detach all streams */
1357 pa_sink_detach_within_thread(s);
1358 return 0;
1359
1360 case PA_SINK_MESSAGE_ATTACH:
1361
1362 /* Reattach all streams */
1363 pa_sink_attach_within_thread(s);
1364 return 0;
1365
1366 case PA_SINK_MESSAGE_GET_REQUESTED_LATENCY: {
1367
1368 pa_usec_t *usec = userdata;
1369 *usec = pa_sink_get_requested_latency_within_thread(s);
1370
1371 if (*usec == (pa_usec_t) -1)
1372 *usec = s->thread_info.max_latency;
1373
1374 return 0;
1375 }
1376
1377 case PA_SINK_MESSAGE_SET_LATENCY_RANGE: {
1378 pa_usec_t *r = userdata;
1379
1380 pa_sink_update_latency_range(s, r[0], r[1]);
1381
1382 return 0;
1383 }
1384
1385 case PA_SINK_MESSAGE_GET_LATENCY_RANGE: {
1386 pa_usec_t *r = userdata;
1387
1388 r[0] = s->thread_info.min_latency;
1389 r[1] = s->thread_info.max_latency;
1390
1391 return 0;
1392 }
1393
1394 case PA_SINK_MESSAGE_GET_MAX_REWIND:
1395
1396 *((size_t*) userdata) = s->thread_info.max_rewind;
1397 return 0;
1398
1399 case PA_SINK_MESSAGE_GET_MAX_REQUEST:
1400
1401 *((size_t*) userdata) = s->thread_info.max_request;
1402 return 0;
1403
1404 case PA_SINK_MESSAGE_GET_LATENCY:
1405 case PA_SINK_MESSAGE_MAX:
1406 ;
1407 }
1408
1409 return -1;
1410 }
1411
1412 /* Called from main thread */
1413 int pa_sink_suspend_all(pa_core *c, pa_bool_t suspend) {
1414 pa_sink *sink;
1415 uint32_t idx;
1416 int ret = 0;
1417
1418 pa_core_assert_ref(c);
1419
1420 for (sink = PA_SINK(pa_idxset_first(c->sinks, &idx)); sink; sink = PA_SINK(pa_idxset_next(c->sinks, &idx)))
1421 ret -= pa_sink_suspend(sink, suspend) < 0;
1422
1423 return ret;
1424 }
1425
1426 /* Called from main thread */
1427 void pa_sink_detach(pa_sink *s) {
1428 pa_sink_assert_ref(s);
1429 pa_assert(PA_SINK_IS_LINKED(s->state));
1430
1431 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_DETACH, NULL, 0, NULL) == 0);
1432 }
1433
1434 /* Called from main thread */
1435 void pa_sink_attach(pa_sink *s) {
1436 pa_sink_assert_ref(s);
1437 pa_assert(PA_SINK_IS_LINKED(s->state));
1438
1439 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_ATTACH, NULL, 0, NULL) == 0);
1440 }
1441
1442 /* Called from IO thread */
1443 void pa_sink_detach_within_thread(pa_sink *s) {
1444 pa_sink_input *i;
1445 void *state = NULL;
1446
1447 pa_sink_assert_ref(s);
1448 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1449
1450 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
1451 if (i->detach)
1452 i->detach(i);
1453
1454 if (s->monitor_source)
1455 pa_source_detach_within_thread(s->monitor_source);
1456 }
1457
1458 /* Called from IO thread */
1459 void pa_sink_attach_within_thread(pa_sink *s) {
1460 pa_sink_input *i;
1461 void *state = NULL;
1462
1463 pa_sink_assert_ref(s);
1464 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1465
1466 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
1467 if (i->attach)
1468 i->attach(i);
1469
1470 if (s->monitor_source)
1471 pa_source_attach_within_thread(s->monitor_source);
1472 }
1473
1474 /* Called from IO thread */
1475 void pa_sink_request_rewind(pa_sink*s, size_t nbytes) {
1476 pa_sink_assert_ref(s);
1477 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1478
1479 if (nbytes == (size_t) -1)
1480 nbytes = s->thread_info.max_rewind;
1481
1482 nbytes = PA_MIN(nbytes, s->thread_info.max_rewind);
1483
1484 if (s->thread_info.rewind_requested &&
1485 nbytes <= s->thread_info.rewind_nbytes)
1486 return;
1487
1488 s->thread_info.rewind_nbytes = nbytes;
1489 s->thread_info.rewind_requested = TRUE;
1490
1491 if (s->request_rewind)
1492 s->request_rewind(s);
1493 }
1494
1495 /* Called from IO thread */
1496 pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
1497 pa_usec_t result = (pa_usec_t) -1;
1498 pa_sink_input *i;
1499 void *state = NULL;
1500 pa_usec_t monitor_latency;
1501
1502 pa_sink_assert_ref(s);
1503
1504 if (s->thread_info.requested_latency_valid)
1505 return s->thread_info.requested_latency;
1506
1507 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
1508
1509 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1 &&
1510 (result == (pa_usec_t) -1 || result > i->thread_info.requested_sink_latency))
1511 result = i->thread_info.requested_sink_latency;
1512
1513 monitor_latency = pa_source_get_requested_latency_within_thread(s->monitor_source);
1514
1515 if (monitor_latency != (pa_usec_t) -1 &&
1516 (result == (pa_usec_t) -1 || result > monitor_latency))
1517 result = monitor_latency;
1518
1519 if (result != (pa_usec_t) -1) {
1520 if (s->thread_info.max_latency > 0 && result > s->thread_info.max_latency)
1521 result = s->thread_info.max_latency;
1522
1523 if (s->thread_info.min_latency > 0 && result < s->thread_info.min_latency)
1524 result = s->thread_info.min_latency;
1525 }
1526
1527 s->thread_info.requested_latency = result;
1528 s->thread_info.requested_latency_valid = TRUE;
1529
1530 return result;
1531 }
1532
1533 /* Called from main thread */
1534 pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
1535 pa_usec_t usec = 0;
1536
1537 pa_sink_assert_ref(s);
1538 pa_assert(PA_SINK_IS_LINKED(s->state));
1539
1540 if (!PA_SINK_IS_OPENED(s->state))
1541 return 0;
1542
1543 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
1544 return usec;
1545 }
1546
1547 /* Called from IO thread */
1548 void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind) {
1549 pa_sink_input *i;
1550 void *state = NULL;
1551
1552 pa_sink_assert_ref(s);
1553
1554 if (max_rewind == s->thread_info.max_rewind)
1555 return;
1556
1557 s->thread_info.max_rewind = max_rewind;
1558
1559 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
1560 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
1561 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
1562 }
1563
1564 if (s->monitor_source)
1565 pa_source_set_max_rewind(s->monitor_source, s->thread_info.max_rewind);
1566 }
1567
1568 /* Called from IO thread */
1569 void pa_sink_set_max_request(pa_sink *s, size_t max_request) {
1570 void *state = NULL;
1571
1572 pa_sink_assert_ref(s);
1573
1574 if (max_request == s->thread_info.max_request)
1575 return;
1576
1577 s->thread_info.max_request = max_request;
1578
1579 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
1580 pa_sink_input *i;
1581
1582 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
1583 pa_sink_input_update_max_request(i, s->thread_info.max_request);
1584 }
1585 }
1586
1587 /* Called from IO thread */
1588 void pa_sink_invalidate_requested_latency(pa_sink *s) {
1589 pa_sink_input *i;
1590 void *state = NULL;
1591
1592 pa_sink_assert_ref(s);
1593
1594 s->thread_info.requested_latency_valid = FALSE;
1595
1596 if (s->update_requested_latency)
1597 s->update_requested_latency(s);
1598
1599 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
1600 if (i->update_sink_requested_latency)
1601 i->update_sink_requested_latency(i);
1602 }
1603
1604 /* Called from main thread */
1605 void pa_sink_set_latency_range(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
1606 pa_sink_assert_ref(s);
1607
1608 /* min_latency == 0: no limit
1609 * min_latency == (size_t) -1: default limit
1610 * min_latency anything else: specified limit
1611 *
1612 * Similar for max_latency */
1613
1614 if (min_latency == (pa_usec_t) -1)
1615 min_latency = DEFAULT_MIN_LATENCY;
1616
1617 if (max_latency == (pa_usec_t) -1)
1618 max_latency = min_latency;
1619
1620 pa_assert(!min_latency || !max_latency ||
1621 min_latency <= max_latency);
1622
1623 if (PA_SINK_IS_LINKED(s->state)) {
1624 pa_usec_t r[2];
1625
1626 r[0] = min_latency;
1627 r[1] = max_latency;
1628
1629 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
1630 } else {
1631 s->thread_info.min_latency = min_latency;
1632 s->thread_info.max_latency = max_latency;
1633
1634 s->monitor_source->thread_info.min_latency = min_latency;
1635 s->monitor_source->thread_info.max_latency = max_latency;
1636
1637 s->thread_info.requested_latency_valid = s->monitor_source->thread_info.requested_latency_valid = FALSE;
1638 }
1639 }
1640
1641 /* Called from main thread */
1642 void pa_sink_get_latency_range(pa_sink *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
1643 pa_sink_assert_ref(s);
1644 pa_assert(min_latency);
1645 pa_assert(max_latency);
1646
1647 if (PA_SINK_IS_LINKED(s->state)) {
1648 pa_usec_t r[2] = { 0, 0 };
1649
1650 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
1651
1652 *min_latency = r[0];
1653 *max_latency = r[1];
1654 } else {
1655 *min_latency = s->thread_info.min_latency;
1656 *max_latency = s->thread_info.max_latency;
1657 }
1658 }
1659
1660 /* Called from IO thread */
1661 void pa_sink_update_latency_range(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
1662 pa_sink_input *i;
1663 void *state = NULL;
1664
1665 pa_sink_assert_ref(s);
1666
1667 s->thread_info.min_latency = min_latency;
1668 s->thread_info.max_latency = max_latency;
1669
1670 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
1671 if (i->update_sink_latency_range)
1672 i->update_sink_latency_range(i);
1673
1674 pa_sink_invalidate_requested_latency(s);
1675
1676 pa_source_update_latency_range(s->monitor_source, min_latency, max_latency);
1677 }
1678
1679 size_t pa_sink_get_max_rewind(pa_sink *s) {
1680 size_t r;
1681 pa_sink_assert_ref(s);
1682
1683 if (!PA_SINK_IS_LINKED(s->state))
1684 return s->thread_info.max_rewind;
1685
1686 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
1687
1688 return r;
1689 }
1690
1691 size_t pa_sink_get_max_request(pa_sink *s) {
1692 size_t r;
1693 pa_sink_assert_ref(s);
1694
1695 if (!PA_SINK_IS_LINKED(s->state))
1696 return s->thread_info.max_request;
1697
1698 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REQUEST, &r, 0, NULL) == 0);
1699
1700 return r;
1701 }