2 This file is part of PulseAudio.
4 Copyright 2004-2006 Lennart Poettering
5 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
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 2.1 of the License,
10 or (at your option) any later version.
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.
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
31 #include <pulse/introspect.h>
32 #include <pulse/format.h>
33 #include <pulse/utf8.h>
34 #include <pulse/xmalloc.h>
35 #include <pulse/timeval.h>
36 #include <pulse/util.h>
37 #include <pulse/rtclock.h>
38 #include <pulse/internal.h>
40 #include <pulsecore/i18n.h>
41 #include <pulsecore/sink-input.h>
42 #include <pulsecore/namereg.h>
43 #include <pulsecore/core-util.h>
44 #include <pulsecore/sample-util.h>
45 #include <pulsecore/core-subscribe.h>
46 #include <pulsecore/log.h>
47 #include <pulsecore/macro.h>
48 #include <pulsecore/play-memblockq.h>
49 #include <pulsecore/flist.h>
53 #define MAX_MIX_CHANNELS 32
54 #define MIX_BUFFER_LENGTH (PA_PAGE_SIZE)
55 #define ABSOLUTE_MIN_LATENCY (500)
56 #define ABSOLUTE_MAX_LATENCY (10*PA_USEC_PER_SEC)
57 #define DEFAULT_FIXED_LATENCY (250*PA_USEC_PER_MSEC)
59 PA_DEFINE_PUBLIC_CLASS(pa_sink, pa_msgobject);
61 struct pa_sink_volume_change {
65 PA_LLIST_FIELDS(pa_sink_volume_change);
68 struct sink_message_set_port {
73 static void sink_free(pa_object *s);
75 static void pa_sink_volume_change_push(pa_sink *s);
76 static void pa_sink_volume_change_flush(pa_sink *s);
77 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes);
79 pa_sink_new_data* pa_sink_new_data_init(pa_sink_new_data *data) {
83 data->proplist = pa_proplist_new();
88 void pa_sink_new_data_set_name(pa_sink_new_data *data, const char *name) {
92 data->name = pa_xstrdup(name);
95 void pa_sink_new_data_set_sample_spec(pa_sink_new_data *data, const pa_sample_spec *spec) {
98 if ((data->sample_spec_is_set = !!spec))
99 data->sample_spec = *spec;
102 void pa_sink_new_data_set_channel_map(pa_sink_new_data *data, const pa_channel_map *map) {
105 if ((data->channel_map_is_set = !!map))
106 data->channel_map = *map;
109 void pa_sink_new_data_set_volume(pa_sink_new_data *data, const pa_cvolume *volume) {
112 if ((data->volume_is_set = !!volume))
113 data->volume = *volume;
116 void pa_sink_new_data_set_muted(pa_sink_new_data *data, pa_bool_t mute) {
119 data->muted_is_set = TRUE;
120 data->muted = !!mute;
123 void pa_sink_new_data_set_port(pa_sink_new_data *data, const char *port) {
126 pa_xfree(data->active_port);
127 data->active_port = pa_xstrdup(port);
130 void pa_sink_new_data_done(pa_sink_new_data *data) {
133 pa_proplist_free(data->proplist);
138 while ((p = pa_hashmap_steal_first(data->ports)))
139 pa_device_port_free(p);
141 pa_hashmap_free(data->ports, NULL, NULL);
144 pa_xfree(data->name);
145 pa_xfree(data->active_port);
148 pa_device_port *pa_device_port_new(const char *name, const char *description, size_t extra) {
153 p = pa_xmalloc(PA_ALIGN(sizeof(pa_device_port)) + extra);
154 p->name = pa_xstrdup(name);
155 p->description = pa_xstrdup(description);
162 void pa_device_port_free(pa_device_port *p) {
166 pa_xfree(p->description);
170 /* Called from main context */
171 static void reset_callbacks(pa_sink *s) {
175 s->get_volume = NULL;
176 s->set_volume = NULL;
177 s->write_volume = NULL;
180 s->request_rewind = NULL;
181 s->update_requested_latency = NULL;
183 s->get_formats = NULL;
184 s->set_formats = NULL;
187 /* Called from main context */
188 pa_sink* pa_sink_new(
190 pa_sink_new_data *data,
191 pa_sink_flags_t flags) {
195 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
196 pa_source_new_data source_data;
202 pa_assert(data->name);
203 pa_assert_ctl_context();
205 s = pa_msgobject_new(pa_sink);
207 if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_SINK, s, data->namereg_fail))) {
208 pa_log_debug("Failed to register name %s.", data->name);
213 pa_sink_new_data_set_name(data, name);
215 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_NEW], data) < 0) {
217 pa_namereg_unregister(core, name);
221 /* FIXME, need to free s here on failure */
223 pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
224 pa_return_null_if_fail(data->name && pa_utf8_valid(data->name) && data->name[0]);
226 pa_return_null_if_fail(data->sample_spec_is_set && pa_sample_spec_valid(&data->sample_spec));
228 if (!data->channel_map_is_set)
229 pa_return_null_if_fail(pa_channel_map_init_auto(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT));
231 pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
232 pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels);
234 /* FIXME: There should probably be a general function for checking whether
235 * the sink volume is allowed to be set, like there is for sink inputs. */
236 pa_assert(!data->volume_is_set || !(flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
238 if (!data->volume_is_set) {
239 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
240 data->save_volume = FALSE;
243 pa_return_null_if_fail(pa_cvolume_valid(&data->volume));
244 pa_return_null_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec));
246 if (!data->muted_is_set)
250 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->card->proplist);
252 pa_device_init_description(data->proplist);
253 pa_device_init_icon(data->proplist, TRUE);
254 pa_device_init_intended_roles(data->proplist);
256 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_FIXATE], data) < 0) {
258 pa_namereg_unregister(core, name);
262 s->parent.parent.free = sink_free;
263 s->parent.process_msg = pa_sink_process_msg;
266 s->state = PA_SINK_INIT;
269 s->suspend_cause = 0;
270 s->name = pa_xstrdup(name);
271 s->proplist = pa_proplist_copy(data->proplist);
272 s->driver = pa_xstrdup(pa_path_get_filename(data->driver));
273 s->module = data->module;
274 s->card = data->card;
276 s->priority = pa_device_init_priority(s->proplist);
278 s->sample_spec = data->sample_spec;
279 s->channel_map = data->channel_map;
281 s->inputs = pa_idxset_new(NULL, NULL);
283 s->input_to_master = NULL;
285 s->reference_volume = s->real_volume = data->volume;
286 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
287 s->base_volume = PA_VOLUME_NORM;
288 s->n_volume_steps = PA_VOLUME_NORM+1;
289 s->muted = data->muted;
290 s->refresh_volume = s->refresh_muted = FALSE;
297 /* As a minor optimization we just steal the list instead of
299 s->ports = data->ports;
302 s->active_port = NULL;
303 s->save_port = FALSE;
305 if (data->active_port && s->ports)
306 if ((s->active_port = pa_hashmap_get(s->ports, data->active_port)))
307 s->save_port = data->save_port;
309 if (!s->active_port && s->ports) {
313 PA_HASHMAP_FOREACH(p, s->ports, state)
314 if (!s->active_port || p->priority > s->active_port->priority)
318 s->save_volume = data->save_volume;
319 s->save_muted = data->save_muted;
321 pa_silence_memchunk_get(
322 &core->silence_cache,
328 s->thread_info.rtpoll = NULL;
329 s->thread_info.inputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
330 s->thread_info.soft_volume = s->soft_volume;
331 s->thread_info.soft_muted = s->muted;
332 s->thread_info.state = s->state;
333 s->thread_info.rewind_nbytes = 0;
334 s->thread_info.rewind_requested = FALSE;
335 s->thread_info.max_rewind = 0;
336 s->thread_info.max_request = 0;
337 s->thread_info.requested_latency_valid = FALSE;
338 s->thread_info.requested_latency = 0;
339 s->thread_info.min_latency = ABSOLUTE_MIN_LATENCY;
340 s->thread_info.max_latency = ABSOLUTE_MAX_LATENCY;
341 s->thread_info.fixed_latency = flags & PA_SINK_DYNAMIC_LATENCY ? 0 : DEFAULT_FIXED_LATENCY;
343 PA_LLIST_HEAD_INIT(pa_sink_volume_change, s->thread_info.volume_changes);
344 s->thread_info.volume_changes_tail = NULL;
345 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
346 s->thread_info.volume_change_safety_margin = core->deferred_volume_safety_margin_usec;
347 s->thread_info.volume_change_extra_delay = core->deferred_volume_extra_delay_usec;
349 /* FIXME: This should probably be moved to pa_sink_put() */
350 pa_assert_se(pa_idxset_put(core->sinks, s, &s->index) >= 0);
353 pa_assert_se(pa_idxset_put(s->card->sinks, s, NULL) >= 0);
355 pt = pa_proplist_to_string_sep(s->proplist, "\n ");
356 pa_log_info("Created sink %u \"%s\" with sample spec %s and channel map %s\n %s",
359 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
360 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map),
364 pa_source_new_data_init(&source_data);
365 pa_source_new_data_set_sample_spec(&source_data, &s->sample_spec);
366 pa_source_new_data_set_channel_map(&source_data, &s->channel_map);
367 source_data.name = pa_sprintf_malloc("%s.monitor", name);
368 source_data.driver = data->driver;
369 source_data.module = data->module;
370 source_data.card = data->card;
372 dn = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
373 pa_proplist_setf(source_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Monitor of %s", dn ? dn : s->name);
374 pa_proplist_sets(source_data.proplist, PA_PROP_DEVICE_CLASS, "monitor");
376 s->monitor_source = pa_source_new(core, &source_data,
377 ((flags & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
378 ((flags & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
380 pa_source_new_data_done(&source_data);
382 if (!s->monitor_source) {
388 s->monitor_source->monitor_of = s;
390 pa_source_set_latency_range(s->monitor_source, s->thread_info.min_latency, s->thread_info.max_latency);
391 pa_source_set_fixed_latency(s->monitor_source, s->thread_info.fixed_latency);
392 pa_source_set_max_rewind(s->monitor_source, s->thread_info.max_rewind);
397 /* Called from main context */
398 static int sink_set_state(pa_sink *s, pa_sink_state_t state) {
400 pa_bool_t suspend_change;
401 pa_sink_state_t original_state;
404 pa_assert_ctl_context();
406 if (s->state == state)
409 original_state = s->state;
412 (original_state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(state)) ||
413 (PA_SINK_IS_OPENED(original_state) && state == PA_SINK_SUSPENDED);
416 if ((ret = s->set_state(s, state)) < 0)
420 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL)) < 0) {
423 s->set_state(s, original_state);
430 if (state != PA_SINK_UNLINKED) { /* if we enter UNLINKED state pa_sink_unlink() will fire the appropriate events */
431 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], s);
432 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
435 if (suspend_change) {
439 /* We're suspending or resuming, tell everyone about it */
441 PA_IDXSET_FOREACH(i, s->inputs, idx)
442 if (s->state == PA_SINK_SUSPENDED &&
443 (i->flags & PA_SINK_INPUT_KILL_ON_SUSPEND))
444 pa_sink_input_kill(i);
446 i->suspend(i, state == PA_SINK_SUSPENDED);
448 if (s->monitor_source)
449 pa_source_sync_suspend(s->monitor_source);
455 void pa_sink_set_get_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
461 void pa_sink_set_set_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
462 pa_sink_flags_t flags;
465 pa_assert(!s->write_volume || cb);
469 /* Save the current flags so we can tell if they've changed */
473 /* The sink implementor is responsible for setting decibel volume support */
474 s->flags |= PA_SINK_HW_VOLUME_CTRL;
476 s->flags &= ~PA_SINK_HW_VOLUME_CTRL;
477 /* See note below in pa_sink_put() about volume sharing and decibel volumes */
478 pa_sink_enable_decibel_volume(s, !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
481 /* If the flags have changed after init, let any clients know via a change event */
482 if (s->state != PA_SINK_INIT && flags != s->flags)
483 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
486 void pa_sink_set_write_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
487 pa_sink_flags_t flags;
490 pa_assert(!cb || s->set_volume);
492 s->write_volume = cb;
494 /* Save the current flags so we can tell if they've changed */
498 s->flags |= PA_SINK_DEFERRED_VOLUME;
500 s->flags &= ~PA_SINK_DEFERRED_VOLUME;
502 /* If the flags have changed after init, let any clients know via a change event */
503 if (s->state != PA_SINK_INIT && flags != s->flags)
504 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
507 void pa_sink_set_get_mute_callback(pa_sink *s, pa_sink_cb_t cb) {
513 void pa_sink_set_set_mute_callback(pa_sink *s, pa_sink_cb_t cb) {
514 pa_sink_flags_t flags;
520 /* Save the current flags so we can tell if they've changed */
524 s->flags |= PA_SINK_HW_MUTE_CTRL;
526 s->flags &= ~PA_SINK_HW_MUTE_CTRL;
528 /* If the flags have changed after init, let any clients know via a change event */
529 if (s->state != PA_SINK_INIT && flags != s->flags)
530 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
533 static void enable_flat_volume(pa_sink *s, pa_bool_t enable) {
534 pa_sink_flags_t flags;
538 /* Always follow the overall user preference here */
539 enable = enable && s->core->flat_volumes;
541 /* Save the current flags so we can tell if they've changed */
545 s->flags |= PA_SINK_FLAT_VOLUME;
547 s->flags &= ~PA_SINK_FLAT_VOLUME;
549 /* If the flags have changed after init, let any clients know via a change event */
550 if (s->state != PA_SINK_INIT && flags != s->flags)
551 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
554 void pa_sink_enable_decibel_volume(pa_sink *s, pa_bool_t enable) {
555 pa_sink_flags_t flags;
559 /* Save the current flags so we can tell if they've changed */
563 s->flags |= PA_SINK_DECIBEL_VOLUME;
564 enable_flat_volume(s, TRUE);
566 s->flags &= ~PA_SINK_DECIBEL_VOLUME;
567 enable_flat_volume(s, FALSE);
570 /* If the flags have changed after init, let any clients know via a change event */
571 if (s->state != PA_SINK_INIT && flags != s->flags)
572 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
575 /* Called from main context */
576 void pa_sink_put(pa_sink* s) {
577 pa_sink_assert_ref(s);
578 pa_assert_ctl_context();
580 pa_assert(s->state == PA_SINK_INIT);
581 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || s->input_to_master);
583 /* The following fields must be initialized properly when calling _put() */
584 pa_assert(s->asyncmsgq);
585 pa_assert(s->thread_info.min_latency <= s->thread_info.max_latency);
587 /* Generally, flags should be initialized via pa_sink_new(). As a
588 * special exception we allow some volume related flags to be set
589 * between _new() and _put() by the callback setter functions above.
591 * Thus we implement a couple safeguards here which ensure the above
592 * setters were used (or at least the implementor made manual changes
593 * in a compatible way).
595 * Note: All of these flags set here can change over the life time
597 pa_assert(!(s->flags & PA_SINK_HW_VOLUME_CTRL) || s->set_volume);
598 pa_assert(!(s->flags & PA_SINK_DEFERRED_VOLUME) || s->write_volume);
599 pa_assert(!(s->flags & PA_SINK_HW_MUTE_CTRL) || s->set_mute);
601 /* XXX: Currently decibel volume is disabled for all sinks that use volume
602 * sharing. When the master sink supports decibel volume, it would be good
603 * to have the flag also in the filter sink, but currently we don't do that
604 * so that the flags of the filter sink never change when it's moved from
605 * a master sink to another. One solution for this problem would be to
606 * remove user-visible volume altogether from filter sinks when volume
607 * sharing is used, but the current approach was easier to implement... */
608 /* We always support decibel volumes in software, otherwise we leave it to
609 * the sink implementor to set this flag as needed.
611 * Note: This flag can also change over the life time of the sink. */
612 if (!(s->flags & PA_SINK_HW_VOLUME_CTRL) && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
613 pa_sink_enable_decibel_volume(s, TRUE);
615 /* If the sink implementor support DB volumes by itself, we should always
616 * try and enable flat volumes too */
617 if ((s->flags & PA_SINK_DECIBEL_VOLUME))
618 enable_flat_volume(s, TRUE);
620 if (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) {
621 pa_sink *root_sink = s->input_to_master->sink;
623 while (root_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
624 root_sink = root_sink->input_to_master->sink;
626 s->reference_volume = root_sink->reference_volume;
627 pa_cvolume_remap(&s->reference_volume, &root_sink->channel_map, &s->channel_map);
629 s->real_volume = root_sink->real_volume;
630 pa_cvolume_remap(&s->real_volume, &root_sink->channel_map, &s->channel_map);
632 /* We assume that if the sink implementor changed the default
633 * volume he did so in real_volume, because that is the usual
634 * place where he is supposed to place his changes. */
635 s->reference_volume = s->real_volume;
637 s->thread_info.soft_volume = s->soft_volume;
638 s->thread_info.soft_muted = s->muted;
639 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
641 pa_assert((s->flags & PA_SINK_HW_VOLUME_CTRL)
642 || (s->base_volume == PA_VOLUME_NORM
643 && ((s->flags & PA_SINK_DECIBEL_VOLUME || (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)))));
644 pa_assert(!(s->flags & PA_SINK_DECIBEL_VOLUME) || s->n_volume_steps == PA_VOLUME_NORM+1);
645 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == (s->thread_info.fixed_latency != 0));
646 pa_assert(!(s->flags & PA_SINK_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_LATENCY));
647 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_DYNAMIC_LATENCY));
649 pa_assert(s->monitor_source->thread_info.fixed_latency == s->thread_info.fixed_latency);
650 pa_assert(s->monitor_source->thread_info.min_latency == s->thread_info.min_latency);
651 pa_assert(s->monitor_source->thread_info.max_latency == s->thread_info.max_latency);
653 pa_assert_se(sink_set_state(s, PA_SINK_IDLE) == 0);
655 pa_source_put(s->monitor_source);
657 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_NEW, s->index);
658 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PUT], s);
661 /* Called from main context */
662 void pa_sink_unlink(pa_sink* s) {
664 pa_sink_input *i, *j = NULL;
667 pa_assert_ctl_context();
669 /* Please note that pa_sink_unlink() does more than simply
670 * reversing pa_sink_put(). It also undoes the registrations
671 * already done in pa_sink_new()! */
673 /* All operations here shall be idempotent, i.e. pa_sink_unlink()
674 * may be called multiple times on the same sink without bad
677 linked = PA_SINK_IS_LINKED(s->state);
680 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK], s);
682 if (s->state != PA_SINK_UNLINKED)
683 pa_namereg_unregister(s->core, s->name);
684 pa_idxset_remove_by_data(s->core->sinks, s, NULL);
687 pa_idxset_remove_by_data(s->card->sinks, s, NULL);
689 while ((i = pa_idxset_first(s->inputs, NULL))) {
691 pa_sink_input_kill(i);
696 sink_set_state(s, PA_SINK_UNLINKED);
698 s->state = PA_SINK_UNLINKED;
702 if (s->monitor_source)
703 pa_source_unlink(s->monitor_source);
706 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
707 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], s);
711 /* Called from main context */
712 static void sink_free(pa_object *o) {
713 pa_sink *s = PA_SINK(o);
717 pa_assert_ctl_context();
718 pa_assert(pa_sink_refcnt(s) == 0);
720 if (PA_SINK_IS_LINKED(s->state))
723 pa_log_info("Freeing sink %u \"%s\"", s->index, s->name);
725 if (s->monitor_source) {
726 pa_source_unref(s->monitor_source);
727 s->monitor_source = NULL;
730 pa_idxset_free(s->inputs, NULL, NULL);
732 while ((i = pa_hashmap_steal_first(s->thread_info.inputs)))
733 pa_sink_input_unref(i);
735 pa_hashmap_free(s->thread_info.inputs, NULL, NULL);
737 if (s->silence.memblock)
738 pa_memblock_unref(s->silence.memblock);
744 pa_proplist_free(s->proplist);
749 while ((p = pa_hashmap_steal_first(s->ports)))
750 pa_device_port_free(p);
752 pa_hashmap_free(s->ports, NULL, NULL);
758 /* Called from main context, and not while the IO thread is active, please */
759 void pa_sink_set_asyncmsgq(pa_sink *s, pa_asyncmsgq *q) {
760 pa_sink_assert_ref(s);
761 pa_assert_ctl_context();
765 if (s->monitor_source)
766 pa_source_set_asyncmsgq(s->monitor_source, q);
769 /* Called from main context, and not while the IO thread is active, please */
770 void pa_sink_update_flags(pa_sink *s, pa_sink_flags_t mask, pa_sink_flags_t value) {
771 pa_sink_assert_ref(s);
772 pa_assert_ctl_context();
777 /* For now, allow only a minimal set of flags to be changed. */
778 pa_assert((mask & ~(PA_SINK_DYNAMIC_LATENCY|PA_SINK_LATENCY)) == 0);
780 s->flags = (s->flags & ~mask) | (value & mask);
782 pa_source_update_flags(s->monitor_source,
783 ((mask & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
784 ((mask & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0),
785 ((value & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
786 ((value & PA_SINK_DYNAMIC_LATENCY) ? PA_SINK_DYNAMIC_LATENCY : 0));
789 /* Called from IO context, or before _put() from main context */
790 void pa_sink_set_rtpoll(pa_sink *s, pa_rtpoll *p) {
791 pa_sink_assert_ref(s);
792 pa_sink_assert_io_context(s);
794 s->thread_info.rtpoll = p;
796 if (s->monitor_source)
797 pa_source_set_rtpoll(s->monitor_source, p);
800 /* Called from main context */
801 int pa_sink_update_status(pa_sink*s) {
802 pa_sink_assert_ref(s);
803 pa_assert_ctl_context();
804 pa_assert(PA_SINK_IS_LINKED(s->state));
806 if (s->state == PA_SINK_SUSPENDED)
809 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
812 /* Called from main context */
813 int pa_sink_suspend(pa_sink *s, pa_bool_t suspend, pa_suspend_cause_t cause) {
814 pa_sink_assert_ref(s);
815 pa_assert_ctl_context();
816 pa_assert(PA_SINK_IS_LINKED(s->state));
817 pa_assert(cause != 0);
820 s->suspend_cause |= cause;
821 s->monitor_source->suspend_cause |= cause;
823 s->suspend_cause &= ~cause;
824 s->monitor_source->suspend_cause &= ~cause;
827 if ((pa_sink_get_state(s) == PA_SINK_SUSPENDED) == !!s->suspend_cause)
830 pa_log_debug("Suspend cause of sink %s is 0x%04x, %s", s->name, s->suspend_cause, s->suspend_cause ? "suspending" : "resuming");
832 if (s->suspend_cause)
833 return sink_set_state(s, PA_SINK_SUSPENDED);
835 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
838 /* Called from main context */
839 pa_queue *pa_sink_move_all_start(pa_sink *s, pa_queue *q) {
840 pa_sink_input *i, *n;
843 pa_sink_assert_ref(s);
844 pa_assert_ctl_context();
845 pa_assert(PA_SINK_IS_LINKED(s->state));
850 for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = n) {
851 n = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx));
853 pa_sink_input_ref(i);
855 if (pa_sink_input_start_move(i) >= 0)
858 pa_sink_input_unref(i);
864 /* Called from main context */
865 void pa_sink_move_all_finish(pa_sink *s, pa_queue *q, pa_bool_t save) {
868 pa_sink_assert_ref(s);
869 pa_assert_ctl_context();
870 pa_assert(PA_SINK_IS_LINKED(s->state));
873 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
874 if (pa_sink_input_finish_move(i, s, save) < 0)
875 pa_sink_input_fail_move(i);
877 pa_sink_input_unref(i);
880 pa_queue_free(q, NULL, NULL);
883 /* Called from main context */
884 void pa_sink_move_all_fail(pa_queue *q) {
887 pa_assert_ctl_context();
890 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
891 pa_sink_input_fail_move(i);
892 pa_sink_input_unref(i);
895 pa_queue_free(q, NULL, NULL);
898 /* Called from IO thread context */
899 void pa_sink_process_rewind(pa_sink *s, size_t nbytes) {
903 pa_sink_assert_ref(s);
904 pa_sink_assert_io_context(s);
905 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
907 /* If nobody requested this and this is actually no real rewind
908 * then we can short cut this. Please note that this means that
909 * not all rewind requests triggered upstream will always be
910 * translated in actual requests! */
911 if (!s->thread_info.rewind_requested && nbytes <= 0)
914 s->thread_info.rewind_nbytes = 0;
915 s->thread_info.rewind_requested = FALSE;
917 if (s->thread_info.state == PA_SINK_SUSPENDED)
921 pa_log_debug("Processing rewind...");
922 if (s->flags & PA_SINK_DEFERRED_VOLUME)
923 pa_sink_volume_change_rewind(s, nbytes);
926 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
927 pa_sink_input_assert_ref(i);
928 pa_sink_input_process_rewind(i, nbytes);
932 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
933 pa_source_process_rewind(s->monitor_source, nbytes);
937 /* Called from IO thread context */
938 static unsigned fill_mix_info(pa_sink *s, size_t *length, pa_mix_info *info, unsigned maxinfo) {
942 size_t mixlength = *length;
944 pa_sink_assert_ref(s);
945 pa_sink_assert_io_context(s);
948 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)) && maxinfo > 0) {
949 pa_sink_input_assert_ref(i);
951 pa_sink_input_peek(i, *length, &info->chunk, &info->volume);
953 if (mixlength == 0 || info->chunk.length < mixlength)
954 mixlength = info->chunk.length;
956 if (pa_memblock_is_silence(info->chunk.memblock)) {
957 pa_memblock_unref(info->chunk.memblock);
961 info->userdata = pa_sink_input_ref(i);
963 pa_assert(info->chunk.memblock);
964 pa_assert(info->chunk.length > 0);
977 /* Called from IO thread context */
978 static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned n, pa_memchunk *result) {
982 unsigned n_unreffed = 0;
984 pa_sink_assert_ref(s);
985 pa_sink_assert_io_context(s);
987 pa_assert(result->memblock);
988 pa_assert(result->length > 0);
990 /* We optimize for the case where the order of the inputs has not changed */
992 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
994 pa_mix_info* m = NULL;
996 pa_sink_input_assert_ref(i);
998 /* Let's try to find the matching entry info the pa_mix_info array */
999 for (j = 0; j < n; j ++) {
1001 if (info[p].userdata == i) {
1011 /* Drop read data */
1012 pa_sink_input_drop(i, result->length);
1014 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state)) {
1016 if (pa_hashmap_size(i->thread_info.direct_outputs) > 0) {
1017 void *ostate = NULL;
1018 pa_source_output *o;
1021 if (m && m->chunk.memblock) {
1023 pa_memblock_ref(c.memblock);
1024 pa_assert(result->length <= c.length);
1025 c.length = result->length;
1027 pa_memchunk_make_writable(&c, 0);
1028 pa_volume_memchunk(&c, &s->sample_spec, &m->volume);
1031 pa_memblock_ref(c.memblock);
1032 pa_assert(result->length <= c.length);
1033 c.length = result->length;
1036 while ((o = pa_hashmap_iterate(i->thread_info.direct_outputs, &ostate, NULL))) {
1037 pa_source_output_assert_ref(o);
1038 pa_assert(o->direct_on_input == i);
1039 pa_source_post_direct(s->monitor_source, o, &c);
1042 pa_memblock_unref(c.memblock);
1047 if (m->chunk.memblock)
1048 pa_memblock_unref(m->chunk.memblock);
1049 pa_memchunk_reset(&m->chunk);
1051 pa_sink_input_unref(m->userdata);
1058 /* Now drop references to entries that are included in the
1059 * pa_mix_info array but don't exist anymore */
1061 if (n_unreffed < n) {
1062 for (; n > 0; info++, n--) {
1064 pa_sink_input_unref(info->userdata);
1065 if (info->chunk.memblock)
1066 pa_memblock_unref(info->chunk.memblock);
1070 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1071 pa_source_post(s->monitor_source, result);
1074 /* Called from IO thread context */
1075 void pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) {
1076 pa_mix_info info[MAX_MIX_CHANNELS];
1078 size_t block_size_max;
1080 pa_sink_assert_ref(s);
1081 pa_sink_assert_io_context(s);
1082 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1083 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1086 pa_assert(!s->thread_info.rewind_requested);
1087 pa_assert(s->thread_info.rewind_nbytes == 0);
1089 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1090 result->memblock = pa_memblock_ref(s->silence.memblock);
1091 result->index = s->silence.index;
1092 result->length = PA_MIN(s->silence.length, length);
1099 length = pa_frame_align(MIX_BUFFER_LENGTH, &s->sample_spec);
1101 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1102 if (length > block_size_max)
1103 length = pa_frame_align(block_size_max, &s->sample_spec);
1105 pa_assert(length > 0);
1107 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1111 *result = s->silence;
1112 pa_memblock_ref(result->memblock);
1114 if (result->length > length)
1115 result->length = length;
1117 } else if (n == 1) {
1120 *result = info[0].chunk;
1121 pa_memblock_ref(result->memblock);
1123 if (result->length > length)
1124 result->length = length;
1126 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1128 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume)) {
1129 pa_memblock_unref(result->memblock);
1130 pa_silence_memchunk_get(&s->core->silence_cache,
1135 } else if (!pa_cvolume_is_norm(&volume)) {
1136 pa_memchunk_make_writable(result, 0);
1137 pa_volume_memchunk(result, &s->sample_spec, &volume);
1141 result->memblock = pa_memblock_new(s->core->mempool, length);
1143 ptr = pa_memblock_acquire(result->memblock);
1144 result->length = pa_mix(info, n,
1147 &s->thread_info.soft_volume,
1148 s->thread_info.soft_muted);
1149 pa_memblock_release(result->memblock);
1154 inputs_drop(s, info, n, result);
1159 /* Called from IO thread context */
1160 void pa_sink_render_into(pa_sink*s, pa_memchunk *target) {
1161 pa_mix_info info[MAX_MIX_CHANNELS];
1163 size_t length, block_size_max;
1165 pa_sink_assert_ref(s);
1166 pa_sink_assert_io_context(s);
1167 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1169 pa_assert(target->memblock);
1170 pa_assert(target->length > 0);
1171 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1173 pa_assert(!s->thread_info.rewind_requested);
1174 pa_assert(s->thread_info.rewind_nbytes == 0);
1176 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1177 pa_silence_memchunk(target, &s->sample_spec);
1183 length = target->length;
1184 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1185 if (length > block_size_max)
1186 length = pa_frame_align(block_size_max, &s->sample_spec);
1188 pa_assert(length > 0);
1190 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1193 if (target->length > length)
1194 target->length = length;
1196 pa_silence_memchunk(target, &s->sample_spec);
1197 } else if (n == 1) {
1200 if (target->length > length)
1201 target->length = length;
1203 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1205 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume))
1206 pa_silence_memchunk(target, &s->sample_spec);
1210 vchunk = info[0].chunk;
1211 pa_memblock_ref(vchunk.memblock);
1213 if (vchunk.length > length)
1214 vchunk.length = length;
1216 if (!pa_cvolume_is_norm(&volume)) {
1217 pa_memchunk_make_writable(&vchunk, 0);
1218 pa_volume_memchunk(&vchunk, &s->sample_spec, &volume);
1221 pa_memchunk_memcpy(target, &vchunk);
1222 pa_memblock_unref(vchunk.memblock);
1228 ptr = pa_memblock_acquire(target->memblock);
1230 target->length = pa_mix(info, n,
1231 (uint8_t*) ptr + target->index, length,
1233 &s->thread_info.soft_volume,
1234 s->thread_info.soft_muted);
1236 pa_memblock_release(target->memblock);
1239 inputs_drop(s, info, n, target);
1244 /* Called from IO thread context */
1245 void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
1249 pa_sink_assert_ref(s);
1250 pa_sink_assert_io_context(s);
1251 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1253 pa_assert(target->memblock);
1254 pa_assert(target->length > 0);
1255 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1257 pa_assert(!s->thread_info.rewind_requested);
1258 pa_assert(s->thread_info.rewind_nbytes == 0);
1260 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1261 pa_silence_memchunk(target, &s->sample_spec);
1274 pa_sink_render_into(s, &chunk);
1283 /* Called from IO thread context */
1284 void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) {
1285 pa_sink_assert_ref(s);
1286 pa_sink_assert_io_context(s);
1287 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1288 pa_assert(length > 0);
1289 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1292 pa_assert(!s->thread_info.rewind_requested);
1293 pa_assert(s->thread_info.rewind_nbytes == 0);
1297 pa_sink_render(s, length, result);
1299 if (result->length < length) {
1302 pa_memchunk_make_writable(result, length);
1304 chunk.memblock = result->memblock;
1305 chunk.index = result->index + result->length;
1306 chunk.length = length - result->length;
1308 pa_sink_render_into_full(s, &chunk);
1310 result->length = length;
1316 /* Called from main thread */
1317 pa_usec_t pa_sink_get_latency(pa_sink *s) {
1320 pa_sink_assert_ref(s);
1321 pa_assert_ctl_context();
1322 pa_assert(PA_SINK_IS_LINKED(s->state));
1324 /* The returned value is supposed to be in the time domain of the sound card! */
1326 if (s->state == PA_SINK_SUSPENDED)
1329 if (!(s->flags & PA_SINK_LATENCY))
1332 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1337 /* Called from IO thread */
1338 pa_usec_t pa_sink_get_latency_within_thread(pa_sink *s) {
1342 pa_sink_assert_ref(s);
1343 pa_sink_assert_io_context(s);
1344 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1346 /* The returned value is supposed to be in the time domain of the sound card! */
1348 if (s->thread_info.state == PA_SINK_SUSPENDED)
1351 if (!(s->flags & PA_SINK_LATENCY))
1354 o = PA_MSGOBJECT(s);
1356 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1358 if (o->process_msg(o, PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) < 0)
1364 /* Called from the main thread (and also from the IO thread while the main
1365 * thread is waiting).
1367 * When a sink uses volume sharing, it never has the PA_SINK_FLAT_VOLUME flag
1368 * set. Instead, flat volume mode is detected by checking whether the root sink
1369 * has the flag set. */
1370 pa_bool_t pa_sink_flat_volume_enabled(pa_sink *s) {
1371 pa_sink_assert_ref(s);
1373 while (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
1374 s = s->input_to_master->sink;
1376 return (s->flags & PA_SINK_FLAT_VOLUME);
1379 /* Called from main context */
1380 pa_bool_t pa_sink_is_passthrough(pa_sink *s) {
1381 pa_sink_input *alt_i;
1384 pa_sink_assert_ref(s);
1386 /* one and only one PASSTHROUGH input can possibly be connected */
1387 if (pa_idxset_size(s->inputs) == 1) {
1388 alt_i = pa_idxset_first(s->inputs, &idx);
1390 if (pa_sink_input_is_passthrough(alt_i))
1397 /* Called from main context */
1398 void pa_sink_enter_passthrough(pa_sink *s) {
1401 /* disable the monitor in passthrough mode */
1402 if (s->monitor_source)
1403 pa_source_suspend(s->monitor_source, TRUE, PA_SUSPEND_PASSTHROUGH);
1405 /* set the volume to NORM */
1406 s->saved_volume = *pa_sink_get_volume(s, TRUE);
1407 s->saved_save_volume = s->save_volume;
1409 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1410 pa_sink_set_volume(s, &volume, TRUE, FALSE);
1413 /* Called from main context */
1414 void pa_sink_leave_passthrough(pa_sink *s) {
1415 /* Unsuspend monitor */
1416 if (s->monitor_source)
1417 pa_source_suspend(s->monitor_source, FALSE, PA_SUSPEND_PASSTHROUGH);
1419 /* Restore sink volume to what it was before we entered passthrough mode */
1420 pa_sink_set_volume(s, &s->saved_volume, TRUE, s->saved_save_volume);
1422 pa_cvolume_init(&s->saved_volume);
1423 s->saved_save_volume = FALSE;
1426 /* Called from main context. */
1427 static void compute_reference_ratio(pa_sink_input *i) {
1429 pa_cvolume remapped;
1432 pa_assert(pa_sink_flat_volume_enabled(i->sink));
1435 * Calculates the reference ratio from the sink's reference
1436 * volume. This basically calculates:
1438 * i->reference_ratio = i->volume / i->sink->reference_volume
1441 remapped = i->sink->reference_volume;
1442 pa_cvolume_remap(&remapped, &i->sink->channel_map, &i->channel_map);
1444 i->reference_ratio.channels = i->sample_spec.channels;
1446 for (c = 0; c < i->sample_spec.channels; c++) {
1448 /* We don't update when the sink volume is 0 anyway */
1449 if (remapped.values[c] <= PA_VOLUME_MUTED)
1452 /* Don't update the reference ratio unless necessary */
1453 if (pa_sw_volume_multiply(
1454 i->reference_ratio.values[c],
1455 remapped.values[c]) == i->volume.values[c])
1458 i->reference_ratio.values[c] = pa_sw_volume_divide(
1459 i->volume.values[c],
1460 remapped.values[c]);
1464 /* Called from main context. Only called for the root sink in volume sharing
1465 * cases, except for internal recursive calls. */
1466 static void compute_reference_ratios(pa_sink *s) {
1470 pa_sink_assert_ref(s);
1471 pa_assert_ctl_context();
1472 pa_assert(PA_SINK_IS_LINKED(s->state));
1473 pa_assert(pa_sink_flat_volume_enabled(s));
1475 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1476 compute_reference_ratio(i);
1478 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1479 compute_reference_ratios(i->origin_sink);
1483 /* Called from main context. Only called for the root sink in volume sharing
1484 * cases, except for internal recursive calls. */
1485 static void compute_real_ratios(pa_sink *s) {
1489 pa_sink_assert_ref(s);
1490 pa_assert_ctl_context();
1491 pa_assert(PA_SINK_IS_LINKED(s->state));
1492 pa_assert(pa_sink_flat_volume_enabled(s));
1494 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1496 pa_cvolume remapped;
1498 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1499 /* The origin sink uses volume sharing, so this input's real ratio
1500 * is handled as a special case - the real ratio must be 0 dB, and
1501 * as a result i->soft_volume must equal i->volume_factor. */
1502 pa_cvolume_reset(&i->real_ratio, i->real_ratio.channels);
1503 i->soft_volume = i->volume_factor;
1505 compute_real_ratios(i->origin_sink);
1511 * This basically calculates:
1513 * i->real_ratio := i->volume / s->real_volume
1514 * i->soft_volume := i->real_ratio * i->volume_factor
1517 remapped = s->real_volume;
1518 pa_cvolume_remap(&remapped, &s->channel_map, &i->channel_map);
1520 i->real_ratio.channels = i->sample_spec.channels;
1521 i->soft_volume.channels = i->sample_spec.channels;
1523 for (c = 0; c < i->sample_spec.channels; c++) {
1525 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1526 /* We leave i->real_ratio untouched */
1527 i->soft_volume.values[c] = PA_VOLUME_MUTED;
1531 /* Don't lose accuracy unless necessary */
1532 if (pa_sw_volume_multiply(
1533 i->real_ratio.values[c],
1534 remapped.values[c]) != i->volume.values[c])
1536 i->real_ratio.values[c] = pa_sw_volume_divide(
1537 i->volume.values[c],
1538 remapped.values[c]);
1540 i->soft_volume.values[c] = pa_sw_volume_multiply(
1541 i->real_ratio.values[c],
1542 i->volume_factor.values[c]);
1545 /* We don't copy the soft_volume to the thread_info data
1546 * here. That must be done by the caller */
1550 static pa_cvolume *cvolume_remap_minimal_impact(
1552 const pa_cvolume *template,
1553 const pa_channel_map *from,
1554 const pa_channel_map *to) {
1559 pa_assert(template);
1562 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1563 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1565 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1566 * mapping from sink input to sink volumes:
1568 * If template is a possible remapping from v it is used instead
1569 * of remapping anew.
1571 * If the channel maps don't match we set an all-channel volume on
1572 * the sink to ensure that changing a volume on one stream has no
1573 * effect that cannot be compensated for in another stream that
1574 * does not have the same channel map as the sink. */
1576 if (pa_channel_map_equal(from, to))
1580 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1585 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1589 /* Called from main thread. Only called for the root sink in volume sharing
1590 * cases, except for internal recursive calls. */
1591 static void get_maximum_input_volume(pa_sink *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1595 pa_sink_assert_ref(s);
1596 pa_assert(max_volume);
1597 pa_assert(channel_map);
1598 pa_assert(pa_sink_flat_volume_enabled(s));
1600 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1601 pa_cvolume remapped;
1603 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1604 get_maximum_input_volume(i->origin_sink, max_volume, channel_map);
1606 /* Ignore this input. The origin sink uses volume sharing, so this
1607 * input's volume will be set to be equal to the root sink's real
1608 * volume. Obviously this input's current volume must not then
1609 * affect what the root sink's real volume will be. */
1613 remapped = i->volume;
1614 cvolume_remap_minimal_impact(&remapped, max_volume, &i->channel_map, channel_map);
1615 pa_cvolume_merge(max_volume, max_volume, &remapped);
1619 /* Called from main thread. Only called for the root sink in volume sharing
1620 * cases, except for internal recursive calls. */
1621 static pa_bool_t has_inputs(pa_sink *s) {
1625 pa_sink_assert_ref(s);
1627 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1628 if (!i->origin_sink || !(i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || has_inputs(i->origin_sink))
1635 /* Called from main thread. Only called for the root sink in volume sharing
1636 * cases, except for internal recursive calls. */
1637 static void update_real_volume(pa_sink *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1641 pa_sink_assert_ref(s);
1642 pa_assert(new_volume);
1643 pa_assert(channel_map);
1645 s->real_volume = *new_volume;
1646 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1648 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1649 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1650 if (pa_sink_flat_volume_enabled(s)) {
1651 pa_cvolume old_volume = i->volume;
1653 /* Follow the root sink's real volume. */
1654 i->volume = *new_volume;
1655 pa_cvolume_remap(&i->volume, channel_map, &i->channel_map);
1656 compute_reference_ratio(i);
1658 /* The volume changed, let's tell people so */
1659 if (!pa_cvolume_equal(&old_volume, &i->volume)) {
1660 if (i->volume_changed)
1661 i->volume_changed(i);
1663 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1667 update_real_volume(i->origin_sink, new_volume, channel_map);
1672 /* Called from main thread. Only called for the root sink in shared volume
1674 static void compute_real_volume(pa_sink *s) {
1675 pa_sink_assert_ref(s);
1676 pa_assert_ctl_context();
1677 pa_assert(PA_SINK_IS_LINKED(s->state));
1678 pa_assert(pa_sink_flat_volume_enabled(s));
1679 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
1681 /* This determines the maximum volume of all streams and sets
1682 * s->real_volume accordingly. */
1684 if (!has_inputs(s)) {
1685 /* In the special case that we have no sink inputs we leave the
1686 * volume unmodified. */
1687 update_real_volume(s, &s->reference_volume, &s->channel_map);
1691 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1693 /* First let's determine the new maximum volume of all inputs
1694 * connected to this sink */
1695 get_maximum_input_volume(s, &s->real_volume, &s->channel_map);
1696 update_real_volume(s, &s->real_volume, &s->channel_map);
1698 /* Then, let's update the real ratios/soft volumes of all inputs
1699 * connected to this sink */
1700 compute_real_ratios(s);
1703 /* Called from main thread. Only called for the root sink in shared volume
1704 * cases, except for internal recursive calls. */
1705 static void propagate_reference_volume(pa_sink *s) {
1709 pa_sink_assert_ref(s);
1710 pa_assert_ctl_context();
1711 pa_assert(PA_SINK_IS_LINKED(s->state));
1712 pa_assert(pa_sink_flat_volume_enabled(s));
1714 /* This is called whenever the sink volume changes that is not
1715 * caused by a sink input volume change. We need to fix up the
1716 * sink input volumes accordingly */
1718 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1719 pa_cvolume old_volume;
1721 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1722 propagate_reference_volume(i->origin_sink);
1724 /* Since the origin sink uses volume sharing, this input's volume
1725 * needs to be updated to match the root sink's real volume, but
1726 * that will be done later in update_shared_real_volume(). */
1730 old_volume = i->volume;
1732 /* This basically calculates:
1734 * i->volume := s->reference_volume * i->reference_ratio */
1736 i->volume = s->reference_volume;
1737 pa_cvolume_remap(&i->volume, &s->channel_map, &i->channel_map);
1738 pa_sw_cvolume_multiply(&i->volume, &i->volume, &i->reference_ratio);
1740 /* The volume changed, let's tell people so */
1741 if (!pa_cvolume_equal(&old_volume, &i->volume)) {
1743 if (i->volume_changed)
1744 i->volume_changed(i);
1746 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1751 /* Called from main thread. Only called for the root sink in volume sharing
1752 * cases, except for internal recursive calls. The return value indicates
1753 * whether any reference volume actually changed. */
1754 static pa_bool_t update_reference_volume(pa_sink *s, const pa_cvolume *v, const pa_channel_map *channel_map, pa_bool_t save) {
1756 pa_bool_t reference_volume_changed;
1760 pa_sink_assert_ref(s);
1761 pa_assert(PA_SINK_IS_LINKED(s->state));
1763 pa_assert(channel_map);
1764 pa_assert(pa_cvolume_valid(v));
1767 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
1769 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
1770 s->reference_volume = volume;
1772 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
1774 if (reference_volume_changed)
1775 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1776 else if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1777 /* If the root sink's volume doesn't change, then there can't be any
1778 * changes in the other sinks in the sink tree either.
1780 * It's probably theoretically possible that even if the root sink's
1781 * volume changes slightly, some filter sink doesn't change its volume
1782 * due to rounding errors. If that happens, we still want to propagate
1783 * the changed root sink volume to the sinks connected to the
1784 * intermediate sink that didn't change its volume. This theoretical
1785 * possibility is the reason why we have that !(s->flags &
1786 * PA_SINK_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
1787 * notice even if we returned here FALSE always if
1788 * reference_volume_changed is FALSE. */
1791 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1792 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1793 update_reference_volume(i->origin_sink, v, channel_map, FALSE);
1799 /* Called from main thread */
1800 void pa_sink_set_volume(
1802 const pa_cvolume *volume,
1806 pa_cvolume new_reference_volume;
1807 pa_sink *root_sink = s;
1809 pa_sink_assert_ref(s);
1810 pa_assert_ctl_context();
1811 pa_assert(PA_SINK_IS_LINKED(s->state));
1812 pa_assert(!volume || pa_cvolume_valid(volume));
1813 pa_assert(volume || pa_sink_flat_volume_enabled(s));
1814 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
1816 /* make sure we don't change the volume when a PASSTHROUGH input is connected ...
1817 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
1818 if (pa_sink_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
1819 pa_log_warn("Cannot change volume, Sink is connected to PASSTHROUGH input");
1823 /* In case of volume sharing, the volume is set for the root sink first,
1824 * from which it's then propagated to the sharing sinks. */
1825 while (root_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
1826 root_sink = root_sink->input_to_master->sink;
1828 /* As a special exception we accept mono volumes on all sinks --
1829 * even on those with more complex channel maps */
1832 if (pa_cvolume_compatible(volume, &s->sample_spec))
1833 new_reference_volume = *volume;
1835 new_reference_volume = s->reference_volume;
1836 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
1839 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
1842 /* If volume is NULL we synchronize the sink's real and reference
1843 * volumes with the stream volumes. If it is not NULL we update
1844 * the reference_volume with it. */
1847 if (update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save)) {
1848 if (pa_sink_flat_volume_enabled(root_sink)) {
1849 /* OK, propagate this volume change back to the inputs */
1850 propagate_reference_volume(root_sink);
1852 /* And now recalculate the real volume */
1853 compute_real_volume(root_sink);
1855 update_real_volume(root_sink, &root_sink->reference_volume, &root_sink->channel_map);
1859 pa_assert(pa_sink_flat_volume_enabled(root_sink));
1861 /* Ok, let's determine the new real volume */
1862 compute_real_volume(root_sink);
1864 /* Let's 'push' the reference volume if necessary */
1865 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_sink->real_volume);
1866 /* If the sink and it's root don't have the same number of channels, we need to remap */
1867 if (s != root_sink && !pa_channel_map_equal(&s->channel_map, &root_sink->channel_map))
1868 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
1869 update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save);
1871 /* Now that the reference volume is updated, we can update the streams'
1872 * reference ratios. */
1873 compute_reference_ratios(root_sink);
1876 if (root_sink->set_volume) {
1877 /* If we have a function set_volume(), then we do not apply a
1878 * soft volume by default. However, set_volume() is free to
1879 * apply one to root_sink->soft_volume */
1881 pa_cvolume_reset(&root_sink->soft_volume, root_sink->sample_spec.channels);
1882 if (!(root_sink->flags & PA_SINK_DEFERRED_VOLUME))
1883 root_sink->set_volume(root_sink);
1886 /* If we have no function set_volume(), then the soft volume
1887 * becomes the real volume */
1888 root_sink->soft_volume = root_sink->real_volume;
1890 /* This tells the sink that soft volume and/or real volume changed */
1892 pa_assert_se(pa_asyncmsgq_send(root_sink->asyncmsgq, PA_MSGOBJECT(root_sink), PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
1895 /* Called from the io thread if sync volume is used, otherwise from the main thread.
1896 * Only to be called by sink implementor */
1897 void pa_sink_set_soft_volume(pa_sink *s, const pa_cvolume *volume) {
1899 pa_sink_assert_ref(s);
1900 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
1902 if (s->flags & PA_SINK_DEFERRED_VOLUME)
1903 pa_sink_assert_io_context(s);
1905 pa_assert_ctl_context();
1908 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
1910 s->soft_volume = *volume;
1912 if (PA_SINK_IS_LINKED(s->state) && !(s->flags & PA_SINK_DEFERRED_VOLUME))
1913 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
1915 s->thread_info.soft_volume = s->soft_volume;
1918 /* Called from the main thread. Only called for the root sink in volume sharing
1919 * cases, except for internal recursive calls. */
1920 static void propagate_real_volume(pa_sink *s, const pa_cvolume *old_real_volume) {
1924 pa_sink_assert_ref(s);
1925 pa_assert(old_real_volume);
1926 pa_assert_ctl_context();
1927 pa_assert(PA_SINK_IS_LINKED(s->state));
1929 /* This is called when the hardware's real volume changes due to
1930 * some external event. We copy the real volume into our
1931 * reference volume and then rebuild the stream volumes based on
1932 * i->real_ratio which should stay fixed. */
1934 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1935 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
1938 /* 1. Make the real volume the reference volume */
1939 update_reference_volume(s, &s->real_volume, &s->channel_map, TRUE);
1942 if (pa_sink_flat_volume_enabled(s)) {
1944 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1945 pa_cvolume old_volume = i->volume;
1947 /* 2. Since the sink's reference and real volumes are equal
1948 * now our ratios should be too. */
1949 i->reference_ratio = i->real_ratio;
1951 /* 3. Recalculate the new stream reference volume based on the
1952 * reference ratio and the sink's reference volume.
1954 * This basically calculates:
1956 * i->volume = s->reference_volume * i->reference_ratio
1958 * This is identical to propagate_reference_volume() */
1959 i->volume = s->reference_volume;
1960 pa_cvolume_remap(&i->volume, &s->channel_map, &i->channel_map);
1961 pa_sw_cvolume_multiply(&i->volume, &i->volume, &i->reference_ratio);
1963 /* Notify if something changed */
1964 if (!pa_cvolume_equal(&old_volume, &i->volume)) {
1966 if (i->volume_changed)
1967 i->volume_changed(i);
1969 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1972 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1973 propagate_real_volume(i->origin_sink, old_real_volume);
1977 /* Something got changed in the hardware. It probably makes sense
1978 * to save changed hw settings given that hw volume changes not
1979 * triggered by PA are almost certainly done by the user. */
1980 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1981 s->save_volume = TRUE;
1984 /* Called from io thread */
1985 void pa_sink_update_volume_and_mute(pa_sink *s) {
1987 pa_sink_assert_io_context(s);
1989 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
1992 /* Called from main thread */
1993 const pa_cvolume *pa_sink_get_volume(pa_sink *s, pa_bool_t force_refresh) {
1994 pa_sink_assert_ref(s);
1995 pa_assert_ctl_context();
1996 pa_assert(PA_SINK_IS_LINKED(s->state));
1998 if (s->refresh_volume || force_refresh) {
1999 struct pa_cvolume old_real_volume;
2001 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2003 old_real_volume = s->real_volume;
2005 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume)
2008 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
2010 update_real_volume(s, &s->real_volume, &s->channel_map);
2011 propagate_real_volume(s, &old_real_volume);
2014 return &s->reference_volume;
2017 /* Called from main thread. In volume sharing cases, only the root sink may
2019 void pa_sink_volume_changed(pa_sink *s, const pa_cvolume *new_real_volume) {
2020 pa_cvolume old_real_volume;
2022 pa_sink_assert_ref(s);
2023 pa_assert_ctl_context();
2024 pa_assert(PA_SINK_IS_LINKED(s->state));
2025 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2027 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2029 old_real_volume = s->real_volume;
2030 update_real_volume(s, new_real_volume, &s->channel_map);
2031 propagate_real_volume(s, &old_real_volume);
2034 /* Called from main thread */
2035 void pa_sink_set_mute(pa_sink *s, pa_bool_t mute, pa_bool_t save) {
2036 pa_bool_t old_muted;
2038 pa_sink_assert_ref(s);
2039 pa_assert_ctl_context();
2040 pa_assert(PA_SINK_IS_LINKED(s->state));
2042 old_muted = s->muted;
2044 s->save_muted = (old_muted == s->muted && s->save_muted) || save;
2046 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->set_mute)
2049 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2051 if (old_muted != s->muted)
2052 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2055 /* Called from main thread */
2056 pa_bool_t pa_sink_get_mute(pa_sink *s, pa_bool_t force_refresh) {
2058 pa_sink_assert_ref(s);
2059 pa_assert_ctl_context();
2060 pa_assert(PA_SINK_IS_LINKED(s->state));
2062 if (s->refresh_muted || force_refresh) {
2063 pa_bool_t old_muted = s->muted;
2065 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_mute)
2068 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MUTE, NULL, 0, NULL) == 0);
2070 if (old_muted != s->muted) {
2071 s->save_muted = TRUE;
2073 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2075 /* Make sure the soft mute status stays in sync */
2076 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2083 /* Called from main thread */
2084 void pa_sink_mute_changed(pa_sink *s, pa_bool_t new_muted) {
2085 pa_sink_assert_ref(s);
2086 pa_assert_ctl_context();
2087 pa_assert(PA_SINK_IS_LINKED(s->state));
2089 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2091 if (s->muted == new_muted)
2094 s->muted = new_muted;
2095 s->save_muted = TRUE;
2097 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2100 /* Called from main thread */
2101 pa_bool_t pa_sink_update_proplist(pa_sink *s, pa_update_mode_t mode, pa_proplist *p) {
2102 pa_sink_assert_ref(s);
2103 pa_assert_ctl_context();
2106 pa_proplist_update(s->proplist, mode, p);
2108 if (PA_SINK_IS_LINKED(s->state)) {
2109 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2110 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2116 /* Called from main thread */
2117 /* FIXME -- this should be dropped and be merged into pa_sink_update_proplist() */
2118 void pa_sink_set_description(pa_sink *s, const char *description) {
2120 pa_sink_assert_ref(s);
2121 pa_assert_ctl_context();
2123 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
2126 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2128 if (old && description && pa_streq(old, description))
2132 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
2134 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2136 if (s->monitor_source) {
2139 n = pa_sprintf_malloc("Monitor Source of %s", description ? description : s->name);
2140 pa_source_set_description(s->monitor_source, n);
2144 if (PA_SINK_IS_LINKED(s->state)) {
2145 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2146 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2150 /* Called from main thread */
2151 unsigned pa_sink_linked_by(pa_sink *s) {
2154 pa_sink_assert_ref(s);
2155 pa_assert_ctl_context();
2156 pa_assert(PA_SINK_IS_LINKED(s->state));
2158 ret = pa_idxset_size(s->inputs);
2160 /* We add in the number of streams connected to us here. Please
2161 * note the asymmetry to pa_sink_used_by()! */
2163 if (s->monitor_source)
2164 ret += pa_source_linked_by(s->monitor_source);
2169 /* Called from main thread */
2170 unsigned pa_sink_used_by(pa_sink *s) {
2173 pa_sink_assert_ref(s);
2174 pa_assert_ctl_context();
2175 pa_assert(PA_SINK_IS_LINKED(s->state));
2177 ret = pa_idxset_size(s->inputs);
2178 pa_assert(ret >= s->n_corked);
2180 /* Streams connected to our monitor source do not matter for
2181 * pa_sink_used_by()!.*/
2183 return ret - s->n_corked;
2186 /* Called from main thread */
2187 unsigned pa_sink_check_suspend(pa_sink *s) {
2192 pa_sink_assert_ref(s);
2193 pa_assert_ctl_context();
2195 if (!PA_SINK_IS_LINKED(s->state))
2200 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2201 pa_sink_input_state_t st;
2203 st = pa_sink_input_get_state(i);
2205 /* We do not assert here. It is perfectly valid for a sink input to
2206 * be in the INIT state (i.e. created, marked done but not yet put)
2207 * and we should not care if it's unlinked as it won't contribute
2208 * towards our busy status.
2210 if (!PA_SINK_INPUT_IS_LINKED(st))
2213 if (st == PA_SINK_INPUT_CORKED)
2216 if (i->flags & PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND)
2222 if (s->monitor_source)
2223 ret += pa_source_check_suspend(s->monitor_source);
2228 /* Called from the IO thread */
2229 static void sync_input_volumes_within_thread(pa_sink *s) {
2233 pa_sink_assert_ref(s);
2234 pa_sink_assert_io_context(s);
2236 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2237 if (pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume))
2240 i->thread_info.soft_volume = i->soft_volume;
2241 pa_sink_input_request_rewind(i, 0, TRUE, FALSE, FALSE);
2245 /* Called from the IO thread. Only called for the root sink in volume sharing
2246 * cases, except for internal recursive calls. */
2247 static void set_shared_volume_within_thread(pa_sink *s) {
2248 pa_sink_input *i = NULL;
2251 pa_sink_assert_ref(s);
2253 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
2255 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2256 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2257 set_shared_volume_within_thread(i->origin_sink);
2261 /* Called from IO thread, except when it is not */
2262 int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
2263 pa_sink *s = PA_SINK(o);
2264 pa_sink_assert_ref(s);
2266 switch ((pa_sink_message_t) code) {
2268 case PA_SINK_MESSAGE_ADD_INPUT: {
2269 pa_sink_input *i = PA_SINK_INPUT(userdata);
2271 /* If you change anything here, make sure to change the
2272 * sink input handling a few lines down at
2273 * PA_SINK_MESSAGE_FINISH_MOVE, too. */
2275 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2277 /* Since the caller sleeps in pa_sink_input_put(), we can
2278 * safely access data outside of thread_info even though
2281 if ((i->thread_info.sync_prev = i->sync_prev)) {
2282 pa_assert(i->sink == i->thread_info.sync_prev->sink);
2283 pa_assert(i->sync_prev->sync_next == i);
2284 i->thread_info.sync_prev->thread_info.sync_next = i;
2287 if ((i->thread_info.sync_next = i->sync_next)) {
2288 pa_assert(i->sink == i->thread_info.sync_next->sink);
2289 pa_assert(i->sync_next->sync_prev == i);
2290 i->thread_info.sync_next->thread_info.sync_prev = i;
2293 pa_assert(!i->thread_info.attached);
2294 i->thread_info.attached = TRUE;
2299 pa_sink_input_set_state_within_thread(i, i->state);
2301 /* The requested latency of the sink input needs to be
2302 * fixed up and then configured on the sink */
2304 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2305 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2307 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2308 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2310 /* We don't rewind here automatically. This is left to the
2311 * sink input implementor because some sink inputs need a
2312 * slow start, i.e. need some time to buffer client
2313 * samples before beginning streaming. */
2315 /* In flat volume mode we need to update the volume as
2317 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2320 case PA_SINK_MESSAGE_REMOVE_INPUT: {
2321 pa_sink_input *i = PA_SINK_INPUT(userdata);
2323 /* If you change anything here, make sure to change the
2324 * sink input handling a few lines down at
2325 * PA_SINK_MESSAGE_START_MOVE, too. */
2330 pa_sink_input_set_state_within_thread(i, i->state);
2332 pa_assert(i->thread_info.attached);
2333 i->thread_info.attached = FALSE;
2335 /* Since the caller sleeps in pa_sink_input_unlink(),
2336 * we can safely access data outside of thread_info even
2337 * though it is mutable */
2339 pa_assert(!i->sync_prev);
2340 pa_assert(!i->sync_next);
2342 if (i->thread_info.sync_prev) {
2343 i->thread_info.sync_prev->thread_info.sync_next = i->thread_info.sync_prev->sync_next;
2344 i->thread_info.sync_prev = NULL;
2347 if (i->thread_info.sync_next) {
2348 i->thread_info.sync_next->thread_info.sync_prev = i->thread_info.sync_next->sync_prev;
2349 i->thread_info.sync_next = NULL;
2352 if (pa_hashmap_remove(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index)))
2353 pa_sink_input_unref(i);
2355 pa_sink_invalidate_requested_latency(s, TRUE);
2356 pa_sink_request_rewind(s, (size_t) -1);
2358 /* In flat volume mode we need to update the volume as
2360 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2363 case PA_SINK_MESSAGE_START_MOVE: {
2364 pa_sink_input *i = PA_SINK_INPUT(userdata);
2366 /* We don't support moving synchronized streams. */
2367 pa_assert(!i->sync_prev);
2368 pa_assert(!i->sync_next);
2369 pa_assert(!i->thread_info.sync_next);
2370 pa_assert(!i->thread_info.sync_prev);
2372 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2374 size_t sink_nbytes, total_nbytes;
2376 /* Get the latency of the sink */
2377 usec = pa_sink_get_latency_within_thread(s);
2378 sink_nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2379 total_nbytes = sink_nbytes + pa_memblockq_get_length(i->thread_info.render_memblockq);
2381 if (total_nbytes > 0) {
2382 i->thread_info.rewrite_nbytes = i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, total_nbytes) : total_nbytes;
2383 i->thread_info.rewrite_flush = TRUE;
2384 pa_sink_input_process_rewind(i, sink_nbytes);
2391 pa_assert(i->thread_info.attached);
2392 i->thread_info.attached = FALSE;
2394 /* Let's remove the sink input ...*/
2395 if (pa_hashmap_remove(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index)))
2396 pa_sink_input_unref(i);
2398 pa_sink_invalidate_requested_latency(s, TRUE);
2400 pa_log_debug("Requesting rewind due to started move");
2401 pa_sink_request_rewind(s, (size_t) -1);
2403 /* In flat volume mode we need to update the volume as
2405 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2408 case PA_SINK_MESSAGE_FINISH_MOVE: {
2409 pa_sink_input *i = PA_SINK_INPUT(userdata);
2411 /* We don't support moving synchronized streams. */
2412 pa_assert(!i->sync_prev);
2413 pa_assert(!i->sync_next);
2414 pa_assert(!i->thread_info.sync_next);
2415 pa_assert(!i->thread_info.sync_prev);
2417 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2419 pa_assert(!i->thread_info.attached);
2420 i->thread_info.attached = TRUE;
2425 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2426 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2428 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2429 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2431 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2435 /* Get the latency of the sink */
2436 usec = pa_sink_get_latency_within_thread(s);
2437 nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2440 pa_sink_input_drop(i, nbytes);
2442 pa_log_debug("Requesting rewind due to finished move");
2443 pa_sink_request_rewind(s, nbytes);
2446 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2449 case PA_SINK_MESSAGE_SET_SHARED_VOLUME: {
2450 pa_sink *root_sink = s;
2452 while (root_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
2453 root_sink = root_sink->input_to_master->sink;
2455 set_shared_volume_within_thread(root_sink);
2459 case PA_SINK_MESSAGE_SET_VOLUME_SYNCED:
2461 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2463 pa_sink_volume_change_push(s);
2465 /* Fall through ... */
2467 case PA_SINK_MESSAGE_SET_VOLUME:
2469 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2470 s->thread_info.soft_volume = s->soft_volume;
2471 pa_sink_request_rewind(s, (size_t) -1);
2474 /* Fall through ... */
2476 case PA_SINK_MESSAGE_SYNC_VOLUMES:
2477 sync_input_volumes_within_thread(s);
2480 case PA_SINK_MESSAGE_GET_VOLUME:
2482 if ((s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume) {
2484 pa_sink_volume_change_flush(s);
2485 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2488 /* In case sink implementor reset SW volume. */
2489 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2490 s->thread_info.soft_volume = s->soft_volume;
2491 pa_sink_request_rewind(s, (size_t) -1);
2496 case PA_SINK_MESSAGE_SET_MUTE:
2498 if (s->thread_info.soft_muted != s->muted) {
2499 s->thread_info.soft_muted = s->muted;
2500 pa_sink_request_rewind(s, (size_t) -1);
2503 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->set_mute)
2508 case PA_SINK_MESSAGE_GET_MUTE:
2510 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->get_mute)
2515 case PA_SINK_MESSAGE_SET_STATE: {
2517 pa_bool_t suspend_change =
2518 (s->thread_info.state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(PA_PTR_TO_UINT(userdata))) ||
2519 (PA_SINK_IS_OPENED(s->thread_info.state) && PA_PTR_TO_UINT(userdata) == PA_SINK_SUSPENDED);
2521 s->thread_info.state = PA_PTR_TO_UINT(userdata);
2523 if (s->thread_info.state == PA_SINK_SUSPENDED) {
2524 s->thread_info.rewind_nbytes = 0;
2525 s->thread_info.rewind_requested = FALSE;
2528 if (suspend_change) {
2532 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
2533 if (i->suspend_within_thread)
2534 i->suspend_within_thread(i, s->thread_info.state == PA_SINK_SUSPENDED);
2540 case PA_SINK_MESSAGE_DETACH:
2542 /* Detach all streams */
2543 pa_sink_detach_within_thread(s);
2546 case PA_SINK_MESSAGE_ATTACH:
2548 /* Reattach all streams */
2549 pa_sink_attach_within_thread(s);
2552 case PA_SINK_MESSAGE_GET_REQUESTED_LATENCY: {
2554 pa_usec_t *usec = userdata;
2555 *usec = pa_sink_get_requested_latency_within_thread(s);
2557 /* Yes, that's right, the IO thread will see -1 when no
2558 * explicit requested latency is configured, the main
2559 * thread will see max_latency */
2560 if (*usec == (pa_usec_t) -1)
2561 *usec = s->thread_info.max_latency;
2566 case PA_SINK_MESSAGE_SET_LATENCY_RANGE: {
2567 pa_usec_t *r = userdata;
2569 pa_sink_set_latency_range_within_thread(s, r[0], r[1]);
2574 case PA_SINK_MESSAGE_GET_LATENCY_RANGE: {
2575 pa_usec_t *r = userdata;
2577 r[0] = s->thread_info.min_latency;
2578 r[1] = s->thread_info.max_latency;
2583 case PA_SINK_MESSAGE_GET_FIXED_LATENCY:
2585 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2588 case PA_SINK_MESSAGE_SET_FIXED_LATENCY:
2590 pa_sink_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2593 case PA_SINK_MESSAGE_GET_MAX_REWIND:
2595 *((size_t*) userdata) = s->thread_info.max_rewind;
2598 case PA_SINK_MESSAGE_GET_MAX_REQUEST:
2600 *((size_t*) userdata) = s->thread_info.max_request;
2603 case PA_SINK_MESSAGE_SET_MAX_REWIND:
2605 pa_sink_set_max_rewind_within_thread(s, (size_t) offset);
2608 case PA_SINK_MESSAGE_SET_MAX_REQUEST:
2610 pa_sink_set_max_request_within_thread(s, (size_t) offset);
2613 case PA_SINK_MESSAGE_SET_PORT:
2615 pa_assert(userdata);
2617 struct sink_message_set_port *msg_data = userdata;
2618 msg_data->ret = s->set_port(s, msg_data->port);
2622 case PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2623 /* This message is sent from IO-thread and handled in main thread. */
2624 pa_assert_ctl_context();
2626 /* Make sure we're not messing with main thread when no longer linked */
2627 if (!PA_SINK_IS_LINKED(s->state))
2630 pa_sink_get_volume(s, TRUE);
2631 pa_sink_get_mute(s, TRUE);
2634 case PA_SINK_MESSAGE_GET_LATENCY:
2635 case PA_SINK_MESSAGE_MAX:
2642 /* Called from main thread */
2643 int pa_sink_suspend_all(pa_core *c, pa_bool_t suspend, pa_suspend_cause_t cause) {
2648 pa_core_assert_ref(c);
2649 pa_assert_ctl_context();
2650 pa_assert(cause != 0);
2652 PA_IDXSET_FOREACH(sink, c->sinks, idx) {
2655 if ((r = pa_sink_suspend(sink, suspend, cause)) < 0)
2662 /* Called from main thread */
2663 void pa_sink_detach(pa_sink *s) {
2664 pa_sink_assert_ref(s);
2665 pa_assert_ctl_context();
2666 pa_assert(PA_SINK_IS_LINKED(s->state));
2668 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_DETACH, NULL, 0, NULL) == 0);
2671 /* Called from main thread */
2672 void pa_sink_attach(pa_sink *s) {
2673 pa_sink_assert_ref(s);
2674 pa_assert_ctl_context();
2675 pa_assert(PA_SINK_IS_LINKED(s->state));
2677 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_ATTACH, NULL, 0, NULL) == 0);
2680 /* Called from IO thread */
2681 void pa_sink_detach_within_thread(pa_sink *s) {
2685 pa_sink_assert_ref(s);
2686 pa_sink_assert_io_context(s);
2687 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2689 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2693 if (s->monitor_source)
2694 pa_source_detach_within_thread(s->monitor_source);
2697 /* Called from IO thread */
2698 void pa_sink_attach_within_thread(pa_sink *s) {
2702 pa_sink_assert_ref(s);
2703 pa_sink_assert_io_context(s);
2704 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2706 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2710 if (s->monitor_source)
2711 pa_source_attach_within_thread(s->monitor_source);
2714 /* Called from IO thread */
2715 void pa_sink_request_rewind(pa_sink*s, size_t nbytes) {
2716 pa_sink_assert_ref(s);
2717 pa_sink_assert_io_context(s);
2718 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2720 if (s->thread_info.state == PA_SINK_SUSPENDED)
2723 if (nbytes == (size_t) -1)
2724 nbytes = s->thread_info.max_rewind;
2726 nbytes = PA_MIN(nbytes, s->thread_info.max_rewind);
2728 if (s->thread_info.rewind_requested &&
2729 nbytes <= s->thread_info.rewind_nbytes)
2732 s->thread_info.rewind_nbytes = nbytes;
2733 s->thread_info.rewind_requested = TRUE;
2735 if (s->request_rewind)
2736 s->request_rewind(s);
2739 /* Called from IO thread */
2740 pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
2741 pa_usec_t result = (pa_usec_t) -1;
2744 pa_usec_t monitor_latency;
2746 pa_sink_assert_ref(s);
2747 pa_sink_assert_io_context(s);
2749 if (!(s->flags & PA_SINK_DYNAMIC_LATENCY))
2750 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
2752 if (s->thread_info.requested_latency_valid)
2753 return s->thread_info.requested_latency;
2755 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2756 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1 &&
2757 (result == (pa_usec_t) -1 || result > i->thread_info.requested_sink_latency))
2758 result = i->thread_info.requested_sink_latency;
2760 monitor_latency = pa_source_get_requested_latency_within_thread(s->monitor_source);
2762 if (monitor_latency != (pa_usec_t) -1 &&
2763 (result == (pa_usec_t) -1 || result > monitor_latency))
2764 result = monitor_latency;
2766 if (result != (pa_usec_t) -1)
2767 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
2769 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
2770 /* Only cache if properly initialized */
2771 s->thread_info.requested_latency = result;
2772 s->thread_info.requested_latency_valid = TRUE;
2778 /* Called from main thread */
2779 pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
2782 pa_sink_assert_ref(s);
2783 pa_assert_ctl_context();
2784 pa_assert(PA_SINK_IS_LINKED(s->state));
2786 if (s->state == PA_SINK_SUSPENDED)
2789 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
2794 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
2795 void pa_sink_set_max_rewind_within_thread(pa_sink *s, size_t max_rewind) {
2799 pa_sink_assert_ref(s);
2800 pa_sink_assert_io_context(s);
2802 if (max_rewind == s->thread_info.max_rewind)
2805 s->thread_info.max_rewind = max_rewind;
2807 if (PA_SINK_IS_LINKED(s->thread_info.state))
2808 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2809 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2811 if (s->monitor_source)
2812 pa_source_set_max_rewind_within_thread(s->monitor_source, s->thread_info.max_rewind);
2815 /* Called from main thread */
2816 void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind) {
2817 pa_sink_assert_ref(s);
2818 pa_assert_ctl_context();
2820 if (PA_SINK_IS_LINKED(s->state))
2821 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
2823 pa_sink_set_max_rewind_within_thread(s, max_rewind);
2826 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
2827 void pa_sink_set_max_request_within_thread(pa_sink *s, size_t max_request) {
2830 pa_sink_assert_ref(s);
2831 pa_sink_assert_io_context(s);
2833 if (max_request == s->thread_info.max_request)
2836 s->thread_info.max_request = max_request;
2838 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
2841 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2842 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2846 /* Called from main thread */
2847 void pa_sink_set_max_request(pa_sink *s, size_t max_request) {
2848 pa_sink_assert_ref(s);
2849 pa_assert_ctl_context();
2851 if (PA_SINK_IS_LINKED(s->state))
2852 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REQUEST, NULL, max_request, NULL) == 0);
2854 pa_sink_set_max_request_within_thread(s, max_request);
2857 /* Called from IO thread */
2858 void pa_sink_invalidate_requested_latency(pa_sink *s, pa_bool_t dynamic) {
2862 pa_sink_assert_ref(s);
2863 pa_sink_assert_io_context(s);
2865 if ((s->flags & PA_SINK_DYNAMIC_LATENCY))
2866 s->thread_info.requested_latency_valid = FALSE;
2870 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
2872 if (s->update_requested_latency)
2873 s->update_requested_latency(s);
2875 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2876 if (i->update_sink_requested_latency)
2877 i->update_sink_requested_latency(i);
2881 /* Called from main thread */
2882 void pa_sink_set_latency_range(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
2883 pa_sink_assert_ref(s);
2884 pa_assert_ctl_context();
2886 /* min_latency == 0: no limit
2887 * min_latency anything else: specified limit
2889 * Similar for max_latency */
2891 if (min_latency < ABSOLUTE_MIN_LATENCY)
2892 min_latency = ABSOLUTE_MIN_LATENCY;
2894 if (max_latency <= 0 ||
2895 max_latency > ABSOLUTE_MAX_LATENCY)
2896 max_latency = ABSOLUTE_MAX_LATENCY;
2898 pa_assert(min_latency <= max_latency);
2900 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
2901 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
2902 max_latency == ABSOLUTE_MAX_LATENCY) ||
2903 (s->flags & PA_SINK_DYNAMIC_LATENCY));
2905 if (PA_SINK_IS_LINKED(s->state)) {
2911 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
2913 pa_sink_set_latency_range_within_thread(s, min_latency, max_latency);
2916 /* Called from main thread */
2917 void pa_sink_get_latency_range(pa_sink *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
2918 pa_sink_assert_ref(s);
2919 pa_assert_ctl_context();
2920 pa_assert(min_latency);
2921 pa_assert(max_latency);
2923 if (PA_SINK_IS_LINKED(s->state)) {
2924 pa_usec_t r[2] = { 0, 0 };
2926 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
2928 *min_latency = r[0];
2929 *max_latency = r[1];
2931 *min_latency = s->thread_info.min_latency;
2932 *max_latency = s->thread_info.max_latency;
2936 /* Called from IO thread */
2937 void pa_sink_set_latency_range_within_thread(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
2938 pa_sink_assert_ref(s);
2939 pa_sink_assert_io_context(s);
2941 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
2942 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
2943 pa_assert(min_latency <= max_latency);
2945 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
2946 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
2947 max_latency == ABSOLUTE_MAX_LATENCY) ||
2948 (s->flags & PA_SINK_DYNAMIC_LATENCY));
2950 if (s->thread_info.min_latency == min_latency &&
2951 s->thread_info.max_latency == max_latency)
2954 s->thread_info.min_latency = min_latency;
2955 s->thread_info.max_latency = max_latency;
2957 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
2961 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2962 if (i->update_sink_latency_range)
2963 i->update_sink_latency_range(i);
2966 pa_sink_invalidate_requested_latency(s, FALSE);
2968 pa_source_set_latency_range_within_thread(s->monitor_source, min_latency, max_latency);
2971 /* Called from main thread */
2972 void pa_sink_set_fixed_latency(pa_sink *s, pa_usec_t latency) {
2973 pa_sink_assert_ref(s);
2974 pa_assert_ctl_context();
2976 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
2977 pa_assert(latency == 0);
2981 if (latency < ABSOLUTE_MIN_LATENCY)
2982 latency = ABSOLUTE_MIN_LATENCY;
2984 if (latency > ABSOLUTE_MAX_LATENCY)
2985 latency = ABSOLUTE_MAX_LATENCY;
2987 if (PA_SINK_IS_LINKED(s->state))
2988 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
2990 s->thread_info.fixed_latency = latency;
2992 pa_source_set_fixed_latency(s->monitor_source, latency);
2995 /* Called from main thread */
2996 pa_usec_t pa_sink_get_fixed_latency(pa_sink *s) {
2999 pa_sink_assert_ref(s);
3000 pa_assert_ctl_context();
3002 if (s->flags & PA_SINK_DYNAMIC_LATENCY)
3005 if (PA_SINK_IS_LINKED(s->state))
3006 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
3008 latency = s->thread_info.fixed_latency;
3013 /* Called from IO thread */
3014 void pa_sink_set_fixed_latency_within_thread(pa_sink *s, pa_usec_t latency) {
3015 pa_sink_assert_ref(s);
3016 pa_sink_assert_io_context(s);
3018 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3019 pa_assert(latency == 0);
3023 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
3024 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
3026 if (s->thread_info.fixed_latency == latency)
3029 s->thread_info.fixed_latency = latency;
3031 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3035 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3036 if (i->update_sink_fixed_latency)
3037 i->update_sink_fixed_latency(i);
3040 pa_sink_invalidate_requested_latency(s, FALSE);
3042 pa_source_set_fixed_latency_within_thread(s->monitor_source, latency);
3045 /* Called from main context */
3046 size_t pa_sink_get_max_rewind(pa_sink *s) {
3048 pa_assert_ctl_context();
3049 pa_sink_assert_ref(s);
3051 if (!PA_SINK_IS_LINKED(s->state))
3052 return s->thread_info.max_rewind;
3054 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
3059 /* Called from main context */
3060 size_t pa_sink_get_max_request(pa_sink *s) {
3062 pa_sink_assert_ref(s);
3063 pa_assert_ctl_context();
3065 if (!PA_SINK_IS_LINKED(s->state))
3066 return s->thread_info.max_request;
3068 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REQUEST, &r, 0, NULL) == 0);
3073 /* Called from main context */
3074 int pa_sink_set_port(pa_sink *s, const char *name, pa_bool_t save) {
3075 pa_device_port *port;
3078 pa_sink_assert_ref(s);
3079 pa_assert_ctl_context();
3082 pa_log_debug("set_port() operation not implemented for sink %u \"%s\"", s->index, s->name);
3083 return -PA_ERR_NOTIMPLEMENTED;
3087 return -PA_ERR_NOENTITY;
3089 if (!(port = pa_hashmap_get(s->ports, name)))
3090 return -PA_ERR_NOENTITY;
3092 if (s->active_port == port) {
3093 s->save_port = s->save_port || save;
3097 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
3098 struct sink_message_set_port msg = { .port = port, .ret = 0 };
3099 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
3103 ret = s->set_port(s, port);
3106 return -PA_ERR_NOENTITY;
3108 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3110 pa_log_info("Changed port of sink %u \"%s\" to %s", s->index, s->name, port->name);
3112 s->active_port = port;
3113 s->save_port = save;
3115 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_CHANGED], s);
3120 pa_bool_t pa_device_init_icon(pa_proplist *p, pa_bool_t is_sink) {
3121 const char *ff, *c, *t = NULL, *s = "", *profile, *bus;
3125 if (pa_proplist_contains(p, PA_PROP_DEVICE_ICON_NAME))
3128 if ((ff = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3130 if (pa_streq(ff, "microphone"))
3131 t = "audio-input-microphone";
3132 else if (pa_streq(ff, "webcam"))
3134 else if (pa_streq(ff, "computer"))
3136 else if (pa_streq(ff, "handset"))
3138 else if (pa_streq(ff, "portable"))
3139 t = "multimedia-player";
3140 else if (pa_streq(ff, "tv"))
3141 t = "video-display";
3144 * The following icons are not part of the icon naming spec,
3145 * because Rodney Dawes sucks as the maintainer of that spec.
3147 * http://lists.freedesktop.org/archives/xdg/2009-May/010397.html
3149 else if (pa_streq(ff, "headset"))
3150 t = "audio-headset";
3151 else if (pa_streq(ff, "headphone"))
3152 t = "audio-headphones";
3153 else if (pa_streq(ff, "speaker"))
3154 t = "audio-speakers";
3155 else if (pa_streq(ff, "hands-free"))
3156 t = "audio-handsfree";
3160 if ((c = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3161 if (pa_streq(c, "modem"))
3168 t = "audio-input-microphone";
3171 if ((profile = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3172 if (strstr(profile, "analog"))
3174 else if (strstr(profile, "iec958"))
3176 else if (strstr(profile, "hdmi"))
3180 bus = pa_proplist_gets(p, PA_PROP_DEVICE_BUS);
3182 pa_proplist_setf(p, PA_PROP_DEVICE_ICON_NAME, "%s%s%s%s", t, pa_strempty(s), bus ? "-" : "", pa_strempty(bus));
3187 pa_bool_t pa_device_init_description(pa_proplist *p) {
3188 const char *s, *d = NULL, *k;
3191 if (pa_proplist_contains(p, PA_PROP_DEVICE_DESCRIPTION))
3194 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3195 if (pa_streq(s, "internal"))
3196 d = _("Internal Audio");
3199 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3200 if (pa_streq(s, "modem"))
3204 d = pa_proplist_gets(p, PA_PROP_DEVICE_PRODUCT_NAME);
3209 k = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_DESCRIPTION);
3212 pa_proplist_setf(p, PA_PROP_DEVICE_DESCRIPTION, _("%s %s"), d, k);
3214 pa_proplist_sets(p, PA_PROP_DEVICE_DESCRIPTION, d);
3219 pa_bool_t pa_device_init_intended_roles(pa_proplist *p) {
3223 if (pa_proplist_contains(p, PA_PROP_DEVICE_INTENDED_ROLES))
3226 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3227 if (pa_streq(s, "handset") || pa_streq(s, "hands-free")
3228 || pa_streq(s, "headset")) {
3229 pa_proplist_sets(p, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
3236 unsigned pa_device_init_priority(pa_proplist *p) {
3238 unsigned priority = 0;
3242 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS))) {
3244 if (pa_streq(s, "sound"))
3246 else if (!pa_streq(s, "modem"))
3250 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3252 if (pa_streq(s, "internal"))
3254 else if (pa_streq(s, "speaker"))
3256 else if (pa_streq(s, "headphone"))
3260 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_BUS))) {
3262 if (pa_streq(s, "pci"))
3264 else if (pa_streq(s, "usb"))
3266 else if (pa_streq(s, "bluetooth"))
3270 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3272 if (pa_startswith(s, "analog-"))
3274 else if (pa_startswith(s, "iec958-"))
3281 PA_STATIC_FLIST_DECLARE(pa_sink_volume_change, 0, pa_xfree);
3283 /* Called from the IO thread. */
3284 static pa_sink_volume_change *pa_sink_volume_change_new(pa_sink *s) {
3285 pa_sink_volume_change *c;
3286 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_sink_volume_change))))
3287 c = pa_xnew(pa_sink_volume_change, 1);
3289 PA_LLIST_INIT(pa_sink_volume_change, c);
3291 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
3295 /* Called from the IO thread. */
3296 static void pa_sink_volume_change_free(pa_sink_volume_change *c) {
3298 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_sink_volume_change), c) < 0)
3302 /* Called from the IO thread. */
3303 void pa_sink_volume_change_push(pa_sink *s) {
3304 pa_sink_volume_change *c = NULL;
3305 pa_sink_volume_change *nc = NULL;
3306 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
3308 const char *direction = NULL;
3311 nc = pa_sink_volume_change_new(s);
3313 /* NOTE: There is already more different volumes in pa_sink that I can remember.
3314 * Adding one more volume for HW would get us rid of this, but I am trying
3315 * to survive with the ones we already have. */
3316 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
3318 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
3319 pa_log_debug("Volume not changing");
3320 pa_sink_volume_change_free(nc);
3324 nc->at = pa_sink_get_latency_within_thread(s);
3325 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3327 if (s->thread_info.volume_changes_tail) {
3328 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
3329 /* If volume is going up let's do it a bit late. If it is going
3330 * down let's do it a bit early. */
3331 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
3332 if (nc->at + safety_margin > c->at) {
3333 nc->at += safety_margin;
3338 else if (nc->at - safety_margin > c->at) {
3339 nc->at -= safety_margin;
3347 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
3348 nc->at += safety_margin;
3351 nc->at -= safety_margin;
3354 PA_LLIST_PREPEND(pa_sink_volume_change, s->thread_info.volume_changes, nc);
3357 PA_LLIST_INSERT_AFTER(pa_sink_volume_change, s->thread_info.volume_changes, c, nc);
3360 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
3362 /* We can ignore volume events that came earlier but should happen later than this. */
3363 PA_LLIST_FOREACH(c, nc->next) {
3364 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
3365 pa_sink_volume_change_free(c);
3368 s->thread_info.volume_changes_tail = nc;
3371 /* Called from the IO thread. */
3372 static void pa_sink_volume_change_flush(pa_sink *s) {
3373 pa_sink_volume_change *c = s->thread_info.volume_changes;
3375 s->thread_info.volume_changes = NULL;
3376 s->thread_info.volume_changes_tail = NULL;
3378 pa_sink_volume_change *next = c->next;
3379 pa_sink_volume_change_free(c);
3384 /* Called from the IO thread. */
3385 pa_bool_t pa_sink_volume_change_apply(pa_sink *s, pa_usec_t *usec_to_next) {
3386 pa_usec_t now = pa_rtclock_now();
3387 pa_bool_t ret = FALSE;
3391 if (!PA_SINK_IS_LINKED(s->state)) {
3397 pa_assert(s->write_volume);
3399 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
3400 pa_sink_volume_change *c = s->thread_info.volume_changes;
3401 PA_LLIST_REMOVE(pa_sink_volume_change, s->thread_info.volume_changes, c);
3402 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
3403 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
3405 s->thread_info.current_hw_volume = c->hw_volume;
3406 pa_sink_volume_change_free(c);
3409 if (s->write_volume && ret)
3412 if (s->thread_info.volume_changes) {
3414 *usec_to_next = s->thread_info.volume_changes->at - now;
3415 if (pa_log_ratelimit(PA_LOG_DEBUG))
3416 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
3421 s->thread_info.volume_changes_tail = NULL;
3426 /* Called from the IO thread. */
3427 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes) {
3428 /* All the queued volume events later than current latency are shifted to happen earlier. */
3429 pa_sink_volume_change *c;
3430 pa_volume_t prev_vol = pa_cvolume_avg(&s->thread_info.current_hw_volume);
3431 pa_usec_t rewound = pa_bytes_to_usec(nbytes, &s->sample_spec);
3432 pa_usec_t limit = pa_sink_get_latency_within_thread(s);
3434 pa_log_debug("latency = %lld", (long long) limit);
3435 limit += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3437 PA_LLIST_FOREACH(c, s->thread_info.volume_changes) {
3438 pa_usec_t modified_limit = limit;
3439 if (prev_vol > pa_cvolume_avg(&c->hw_volume))
3440 modified_limit -= s->thread_info.volume_change_safety_margin;
3442 modified_limit += s->thread_info.volume_change_safety_margin;
3443 if (c->at > modified_limit) {
3445 if (c->at < modified_limit)
3446 c->at = modified_limit;
3448 prev_vol = pa_cvolume_avg(&c->hw_volume);
3450 pa_sink_volume_change_apply(s, NULL);
3453 /* Called from the main thread */
3454 /* Gets the list of formats supported by the sink. The members and idxset must
3455 * be freed by the caller. */
3456 pa_idxset* pa_sink_get_formats(pa_sink *s) {
3461 if (s->get_formats) {
3462 /* Sink supports format query, all is good */
3463 ret = s->get_formats(s);
3465 /* Sink doesn't support format query, so assume it does PCM */
3466 pa_format_info *f = pa_format_info_new();
3467 f->encoding = PA_ENCODING_PCM;
3469 ret = pa_idxset_new(NULL, NULL);
3470 pa_idxset_put(ret, f, NULL);
3476 /* Called from the main thread */
3477 /* Allows an external source to set what formats a sink supports if the sink
3478 * permits this. The function makes a copy of the formats on success. */
3479 pa_bool_t pa_sink_set_formats(pa_sink *s, pa_idxset *formats) {
3484 /* Sink supports setting formats -- let's give it a shot */
3485 return s->set_formats(s, formats);
3487 /* Sink doesn't support setting this -- bail out */
3491 /* Called from the main thread */
3492 /* Checks if the sink can accept this format */
3493 pa_bool_t pa_sink_check_format(pa_sink *s, pa_format_info *f)
3495 pa_idxset *formats = NULL;
3496 pa_bool_t ret = FALSE;
3501 formats = pa_sink_get_formats(s);
3504 pa_format_info *finfo_device;
3507 PA_IDXSET_FOREACH(finfo_device, formats, i) {
3508 if (pa_format_info_is_compatible(finfo_device, f)) {
3514 pa_idxset_free(formats, (pa_free2_cb_t) pa_format_info_free2, NULL);
3520 /* Called from the main thread */
3521 /* Calculates the intersection between formats supported by the sink and
3522 * in_formats, and returns these, in the order of the sink's formats. */
3523 pa_idxset* pa_sink_check_formats(pa_sink *s, pa_idxset *in_formats) {
3524 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *sink_formats = NULL;
3525 pa_format_info *f_sink, *f_in;
3530 if (!in_formats || pa_idxset_isempty(in_formats))
3533 sink_formats = pa_sink_get_formats(s);
3535 PA_IDXSET_FOREACH(f_sink, sink_formats, i) {
3536 PA_IDXSET_FOREACH(f_in, in_formats, j) {
3537 if (pa_format_info_is_compatible(f_sink, f_in))
3538 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
3544 pa_idxset_free(sink_formats, (pa_free2_cb_t) pa_format_info_free2, NULL);