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, see <http://www.gnu.org/licenses/>.
29 #include <pulse/introspect.h>
30 #include <pulse/format.h>
31 #include <pulse/utf8.h>
32 #include <pulse/xmalloc.h>
33 #include <pulse/timeval.h>
34 #include <pulse/util.h>
35 #include <pulse/rtclock.h>
36 #include <pulse/internal.h>
38 #include <pulsecore/i18n.h>
39 #include <pulsecore/sink-input.h>
40 #include <pulsecore/namereg.h>
41 #include <pulsecore/core-util.h>
42 #include <pulsecore/sample-util.h>
43 #include <pulsecore/mix.h>
44 #include <pulsecore/core-subscribe.h>
45 #include <pulsecore/log.h>
46 #include <pulsecore/macro.h>
47 #include <pulsecore/play-memblockq.h>
48 #include <pulsecore/flist.h>
52 #define MAX_MIX_CHANNELS 32
53 #define MIX_BUFFER_LENGTH (pa_page_size())
54 #define ABSOLUTE_MIN_LATENCY (500)
55 #define ABSOLUTE_MAX_LATENCY (10*PA_USEC_PER_SEC)
56 #define DEFAULT_FIXED_LATENCY (250*PA_USEC_PER_MSEC)
58 PA_DEFINE_PUBLIC_CLASS(pa_sink, pa_msgobject);
60 struct pa_sink_volume_change {
64 PA_LLIST_FIELDS(pa_sink_volume_change);
67 struct sink_message_set_port {
72 static void sink_free(pa_object *s);
74 static void pa_sink_volume_change_push(pa_sink *s);
75 static void pa_sink_volume_change_flush(pa_sink *s);
76 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes);
78 pa_sink_new_data* pa_sink_new_data_init(pa_sink_new_data *data) {
82 data->proplist = pa_proplist_new();
83 data->ports = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL, (pa_free_cb_t) pa_device_port_unref);
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_alternate_sample_rate(pa_sink_new_data *data, const uint32_t alternate_sample_rate) {
112 data->alternate_sample_rate_is_set = true;
113 data->alternate_sample_rate = alternate_sample_rate;
116 void pa_sink_new_data_set_volume(pa_sink_new_data *data, const pa_cvolume *volume) {
119 if ((data->volume_is_set = !!volume))
120 data->volume = *volume;
123 void pa_sink_new_data_set_muted(pa_sink_new_data *data, bool mute) {
126 data->muted_is_set = true;
130 void pa_sink_new_data_set_port(pa_sink_new_data *data, const char *port) {
133 pa_xfree(data->active_port);
134 data->active_port = pa_xstrdup(port);
137 void pa_sink_new_data_done(pa_sink_new_data *data) {
140 pa_proplist_free(data->proplist);
143 pa_hashmap_free(data->ports);
145 pa_xfree(data->name);
146 pa_xfree(data->active_port);
149 /* Called from main context */
150 static void reset_callbacks(pa_sink *s) {
154 s->get_volume = NULL;
155 s->set_volume = NULL;
156 s->write_volume = NULL;
159 s->request_rewind = NULL;
160 s->update_requested_latency = NULL;
162 s->get_formats = NULL;
163 s->set_formats = NULL;
164 s->reconfigure = NULL;
167 /* Called from main context */
168 pa_sink* pa_sink_new(
170 pa_sink_new_data *data,
171 pa_sink_flags_t flags) {
175 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
176 pa_source_new_data source_data;
182 pa_assert(data->name);
183 pa_assert_ctl_context();
185 s = pa_msgobject_new(pa_sink);
187 if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_SINK, s, data->namereg_fail))) {
188 pa_log_debug("Failed to register name %s.", data->name);
193 pa_sink_new_data_set_name(data, name);
195 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_NEW], data) < 0) {
197 pa_namereg_unregister(core, name);
201 /* FIXME, need to free s here on failure */
203 pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
204 pa_return_null_if_fail(data->name && pa_utf8_valid(data->name) && data->name[0]);
206 pa_return_null_if_fail(data->sample_spec_is_set && pa_sample_spec_valid(&data->sample_spec));
208 if (!data->channel_map_is_set)
209 pa_return_null_if_fail(pa_channel_map_init_auto(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT));
211 pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
212 pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels);
214 /* FIXME: There should probably be a general function for checking whether
215 * the sink volume is allowed to be set, like there is for sink inputs. */
216 pa_assert(!data->volume_is_set || !(flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
218 if (!data->volume_is_set) {
219 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
220 data->save_volume = false;
223 pa_return_null_if_fail(pa_cvolume_valid(&data->volume));
224 pa_return_null_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec));
226 if (!data->muted_is_set)
230 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->card->proplist);
232 pa_device_init_description(data->proplist, data->card);
233 pa_device_init_icon(data->proplist, true);
234 pa_device_init_intended_roles(data->proplist);
236 if (!data->active_port) {
237 pa_device_port *p = pa_device_port_find_best(data->ports);
239 pa_sink_new_data_set_port(data, p->name);
242 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_FIXATE], data) < 0) {
244 pa_namereg_unregister(core, name);
248 s->parent.parent.free = sink_free;
249 s->parent.process_msg = pa_sink_process_msg;
252 s->state = PA_SINK_INIT;
255 s->suspend_cause = data->suspend_cause;
256 pa_sink_set_mixer_dirty(s, false);
257 s->name = pa_xstrdup(name);
258 s->proplist = pa_proplist_copy(data->proplist);
259 s->driver = pa_xstrdup(pa_path_get_filename(data->driver));
260 s->module = data->module;
261 s->card = data->card;
263 s->priority = pa_device_init_priority(s->proplist);
265 s->sample_spec = data->sample_spec;
266 s->channel_map = data->channel_map;
267 s->default_sample_rate = s->sample_spec.rate;
269 if (data->alternate_sample_rate_is_set)
270 s->alternate_sample_rate = data->alternate_sample_rate;
272 s->alternate_sample_rate = s->core->alternate_sample_rate;
274 if (s->sample_spec.rate == s->alternate_sample_rate) {
275 pa_log_warn("Default and alternate sample rates are the same.");
276 s->alternate_sample_rate = 0;
279 s->inputs = pa_idxset_new(NULL, NULL);
281 s->input_to_master = NULL;
283 s->reference_volume = s->real_volume = data->volume;
284 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
285 s->base_volume = PA_VOLUME_NORM;
286 s->n_volume_steps = PA_VOLUME_NORM+1;
287 s->muted = data->muted;
288 s->refresh_volume = s->refresh_muted = false;
295 /* As a minor optimization we just steal the list instead of
297 s->ports = data->ports;
300 s->active_port = NULL;
301 s->save_port = false;
303 if (data->active_port)
304 if ((s->active_port = pa_hashmap_get(s->ports, data->active_port)))
305 s->save_port = data->save_port;
307 /* Hopefully the active port has already been assigned in the previous call
308 to pa_device_port_find_best, but better safe than sorry */
310 s->active_port = pa_device_port_find_best(s->ports);
313 s->port_latency_offset = s->active_port->latency_offset;
315 s->port_latency_offset = 0;
317 s->save_volume = data->save_volume;
318 s->save_muted = data->save_muted;
320 pa_silence_memchunk_get(
321 &core->silence_cache,
327 s->thread_info.rtpoll = NULL;
328 s->thread_info.inputs = pa_hashmap_new_full(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func, NULL,
329 (pa_free_cb_t) pa_sink_input_unref);
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_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_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;
348 s->thread_info.port_latency_offset = s->port_latency_offset;
350 /* FIXME: This should probably be moved to pa_sink_put() */
351 pa_assert_se(pa_idxset_put(core->sinks, s, &s->index) >= 0);
354 pa_assert_se(pa_idxset_put(s->card->sinks, s, NULL) >= 0);
356 pt = pa_proplist_to_string_sep(s->proplist, "\n ");
357 pa_log_info("Created sink %u \"%s\" with sample spec %s and channel map %s\n %s",
360 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
361 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map),
365 pa_source_new_data_init(&source_data);
366 pa_source_new_data_set_sample_spec(&source_data, &s->sample_spec);
367 pa_source_new_data_set_channel_map(&source_data, &s->channel_map);
368 pa_source_new_data_set_alternate_sample_rate(&source_data, s->alternate_sample_rate);
369 source_data.name = pa_sprintf_malloc("%s.monitor", name);
370 source_data.driver = data->driver;
371 source_data.module = data->module;
372 source_data.card = data->card;
374 dn = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
375 pa_proplist_setf(source_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Monitor of %s", dn ? dn : s->name);
376 pa_proplist_sets(source_data.proplist, PA_PROP_DEVICE_CLASS, "monitor");
378 s->monitor_source = pa_source_new(core, &source_data,
379 ((flags & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
380 ((flags & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
382 pa_source_new_data_done(&source_data);
384 if (!s->monitor_source) {
390 s->monitor_source->monitor_of = s;
392 pa_source_set_latency_range(s->monitor_source, s->thread_info.min_latency, s->thread_info.max_latency);
393 pa_source_set_fixed_latency(s->monitor_source, s->thread_info.fixed_latency);
394 pa_source_set_max_rewind(s->monitor_source, s->thread_info.max_rewind);
399 /* Called from main context */
400 static int sink_set_state(pa_sink *s, pa_sink_state_t state) {
403 pa_sink_state_t original_state;
406 pa_assert_ctl_context();
408 if (s->state == state)
411 original_state = s->state;
414 (original_state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(state)) ||
415 (PA_SINK_IS_OPENED(original_state) && state == PA_SINK_SUSPENDED);
418 if ((ret = s->set_state(s, state)) < 0)
422 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL)) < 0) {
425 s->set_state(s, original_state);
430 pa_log_debug("%s: state: %s -> %s", s->name, pa_sink_state_to_string(s->state), pa_sink_state_to_string(state));
433 if (state != PA_SINK_UNLINKED) { /* if we enter UNLINKED state pa_sink_unlink() will fire the appropriate events */
434 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], s);
435 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
438 if (suspend_change) {
442 /* We're suspending or resuming, tell everyone about it */
444 PA_IDXSET_FOREACH(i, s->inputs, idx)
445 if (s->state == PA_SINK_SUSPENDED &&
446 (i->flags & PA_SINK_INPUT_KILL_ON_SUSPEND))
447 pa_sink_input_kill(i);
449 i->suspend(i, state == PA_SINK_SUSPENDED);
451 if (s->monitor_source)
452 pa_source_sync_suspend(s->monitor_source);
458 void pa_sink_set_get_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
464 void pa_sink_set_set_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
465 pa_sink_flags_t flags;
468 pa_assert(!s->write_volume || cb);
472 /* Save the current flags so we can tell if they've changed */
476 /* The sink implementor is responsible for setting decibel volume support */
477 s->flags |= PA_SINK_HW_VOLUME_CTRL;
479 s->flags &= ~PA_SINK_HW_VOLUME_CTRL;
480 /* See note below in pa_sink_put() about volume sharing and decibel volumes */
481 pa_sink_enable_decibel_volume(s, !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
484 /* If the flags have changed after init, let any clients know via a change event */
485 if (s->state != PA_SINK_INIT && flags != s->flags)
486 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
489 void pa_sink_set_write_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
490 pa_sink_flags_t flags;
493 pa_assert(!cb || s->set_volume);
495 s->write_volume = cb;
497 /* Save the current flags so we can tell if they've changed */
501 s->flags |= PA_SINK_DEFERRED_VOLUME;
503 s->flags &= ~PA_SINK_DEFERRED_VOLUME;
505 /* If the flags have changed after init, let any clients know via a change event */
506 if (s->state != PA_SINK_INIT && flags != s->flags)
507 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
510 void pa_sink_set_get_mute_callback(pa_sink *s, pa_sink_get_mute_cb_t cb) {
516 void pa_sink_set_set_mute_callback(pa_sink *s, pa_sink_cb_t cb) {
517 pa_sink_flags_t flags;
523 /* Save the current flags so we can tell if they've changed */
527 s->flags |= PA_SINK_HW_MUTE_CTRL;
529 s->flags &= ~PA_SINK_HW_MUTE_CTRL;
531 /* If the flags have changed after init, let any clients know via a change event */
532 if (s->state != PA_SINK_INIT && flags != s->flags)
533 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
536 static void enable_flat_volume(pa_sink *s, bool enable) {
537 pa_sink_flags_t flags;
541 /* Always follow the overall user preference here */
542 enable = enable && s->core->flat_volumes;
544 /* Save the current flags so we can tell if they've changed */
548 s->flags |= PA_SINK_FLAT_VOLUME;
550 s->flags &= ~PA_SINK_FLAT_VOLUME;
552 /* If the flags have changed after init, let any clients know via a change event */
553 if (s->state != PA_SINK_INIT && flags != s->flags)
554 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
557 void pa_sink_enable_decibel_volume(pa_sink *s, bool enable) {
558 pa_sink_flags_t flags;
562 /* Save the current flags so we can tell if they've changed */
566 s->flags |= PA_SINK_DECIBEL_VOLUME;
567 enable_flat_volume(s, true);
569 s->flags &= ~PA_SINK_DECIBEL_VOLUME;
570 enable_flat_volume(s, false);
573 /* If the flags have changed after init, let any clients know via a change event */
574 if (s->state != PA_SINK_INIT && flags != s->flags)
575 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
578 /* Called from main context */
579 void pa_sink_put(pa_sink* s) {
580 pa_sink_assert_ref(s);
581 pa_assert_ctl_context();
583 pa_assert(s->state == PA_SINK_INIT);
584 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || pa_sink_is_filter(s));
586 /* The following fields must be initialized properly when calling _put() */
587 pa_assert(s->asyncmsgq);
588 pa_assert(s->thread_info.min_latency <= s->thread_info.max_latency);
590 /* Generally, flags should be initialized via pa_sink_new(). As a
591 * special exception we allow some volume related flags to be set
592 * between _new() and _put() by the callback setter functions above.
594 * Thus we implement a couple safeguards here which ensure the above
595 * setters were used (or at least the implementor made manual changes
596 * in a compatible way).
598 * Note: All of these flags set here can change over the life time
600 pa_assert(!(s->flags & PA_SINK_HW_VOLUME_CTRL) || s->set_volume);
601 pa_assert(!(s->flags & PA_SINK_DEFERRED_VOLUME) || s->write_volume);
602 pa_assert(!(s->flags & PA_SINK_HW_MUTE_CTRL) || s->set_mute);
604 /* XXX: Currently decibel volume is disabled for all sinks that use volume
605 * sharing. When the master sink supports decibel volume, it would be good
606 * to have the flag also in the filter sink, but currently we don't do that
607 * so that the flags of the filter sink never change when it's moved from
608 * a master sink to another. One solution for this problem would be to
609 * remove user-visible volume altogether from filter sinks when volume
610 * sharing is used, but the current approach was easier to implement... */
611 /* We always support decibel volumes in software, otherwise we leave it to
612 * the sink implementor to set this flag as needed.
614 * Note: This flag can also change over the life time of the sink. */
615 if (!(s->flags & PA_SINK_HW_VOLUME_CTRL) && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
616 pa_sink_enable_decibel_volume(s, true);
617 s->soft_volume = s->reference_volume;
620 /* If the sink implementor support DB volumes by itself, we should always
621 * try and enable flat volumes too */
622 if ((s->flags & PA_SINK_DECIBEL_VOLUME))
623 enable_flat_volume(s, true);
625 if (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) {
626 pa_sink *root_sink = pa_sink_get_master(s);
628 pa_assert(root_sink);
630 s->reference_volume = root_sink->reference_volume;
631 pa_cvolume_remap(&s->reference_volume, &root_sink->channel_map, &s->channel_map);
633 s->real_volume = root_sink->real_volume;
634 pa_cvolume_remap(&s->real_volume, &root_sink->channel_map, &s->channel_map);
636 /* We assume that if the sink implementor changed the default
637 * volume he did so in real_volume, because that is the usual
638 * place where he is supposed to place his changes. */
639 s->reference_volume = s->real_volume;
641 s->thread_info.soft_volume = s->soft_volume;
642 s->thread_info.soft_muted = s->muted;
643 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
645 pa_assert((s->flags & PA_SINK_HW_VOLUME_CTRL)
646 || (s->base_volume == PA_VOLUME_NORM
647 && ((s->flags & PA_SINK_DECIBEL_VOLUME || (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)))));
648 pa_assert(!(s->flags & PA_SINK_DECIBEL_VOLUME) || s->n_volume_steps == PA_VOLUME_NORM+1);
649 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->thread_info.fixed_latency == 0));
650 pa_assert(!(s->flags & PA_SINK_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_LATENCY));
651 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_DYNAMIC_LATENCY));
653 pa_assert(s->monitor_source->thread_info.fixed_latency == s->thread_info.fixed_latency);
654 pa_assert(s->monitor_source->thread_info.min_latency == s->thread_info.min_latency);
655 pa_assert(s->monitor_source->thread_info.max_latency == s->thread_info.max_latency);
657 if (s->suspend_cause)
658 pa_assert_se(sink_set_state(s, PA_SINK_SUSPENDED) == 0);
660 pa_assert_se(sink_set_state(s, PA_SINK_IDLE) == 0);
662 pa_source_put(s->monitor_source);
664 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_NEW, s->index);
665 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PUT], s);
667 /* This function must be called after the PA_CORE_HOOK_SINK_PUT hook,
668 * because module-switch-on-connect needs to know the old default sink */
669 pa_core_update_default_sink(s->core);
672 /* Called from main context */
673 void pa_sink_unlink(pa_sink* s) {
675 pa_sink_input *i, PA_UNUSED *j = NULL;
677 pa_sink_assert_ref(s);
678 pa_assert_ctl_context();
680 /* Please note that pa_sink_unlink() does more than simply
681 * reversing pa_sink_put(). It also undoes the registrations
682 * already done in pa_sink_new()! */
684 if (s->unlink_requested)
687 s->unlink_requested = true;
689 linked = PA_SINK_IS_LINKED(s->state);
692 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK], s);
694 if (s->state != PA_SINK_UNLINKED)
695 pa_namereg_unregister(s->core, s->name);
696 pa_idxset_remove_by_data(s->core->sinks, s, NULL);
698 pa_core_update_default_sink(s->core);
701 pa_idxset_remove_by_data(s->card->sinks, s, NULL);
703 while ((i = pa_idxset_first(s->inputs, NULL))) {
705 pa_sink_input_kill(i);
710 sink_set_state(s, PA_SINK_UNLINKED);
712 s->state = PA_SINK_UNLINKED;
716 if (s->monitor_source)
717 pa_source_unlink(s->monitor_source);
720 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
721 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], s);
725 /* Called from main context */
726 static void sink_free(pa_object *o) {
727 pa_sink *s = PA_SINK(o);
730 pa_assert_ctl_context();
731 pa_assert(pa_sink_refcnt(s) == 0);
732 pa_assert(!PA_SINK_IS_LINKED(s->state));
734 pa_log_info("Freeing sink %u \"%s\"", s->index, s->name);
736 pa_sink_volume_change_flush(s);
738 if (s->monitor_source) {
739 pa_source_unref(s->monitor_source);
740 s->monitor_source = NULL;
743 pa_idxset_free(s->inputs, NULL);
744 pa_hashmap_free(s->thread_info.inputs);
746 if (s->silence.memblock)
747 pa_memblock_unref(s->silence.memblock);
753 pa_proplist_free(s->proplist);
756 pa_hashmap_free(s->ports);
761 /* Called from main context, and not while the IO thread is active, please */
762 void pa_sink_set_asyncmsgq(pa_sink *s, pa_asyncmsgq *q) {
763 pa_sink_assert_ref(s);
764 pa_assert_ctl_context();
768 if (s->monitor_source)
769 pa_source_set_asyncmsgq(s->monitor_source, q);
772 /* Called from main context, and not while the IO thread is active, please */
773 void pa_sink_update_flags(pa_sink *s, pa_sink_flags_t mask, pa_sink_flags_t value) {
774 pa_sink_flags_t old_flags;
775 pa_sink_input *input;
778 pa_sink_assert_ref(s);
779 pa_assert_ctl_context();
781 /* For now, allow only a minimal set of flags to be changed. */
782 pa_assert((mask & ~(PA_SINK_DYNAMIC_LATENCY|PA_SINK_LATENCY)) == 0);
784 old_flags = s->flags;
785 s->flags = (s->flags & ~mask) | (value & mask);
787 if (s->flags == old_flags)
790 if ((s->flags & PA_SINK_LATENCY) != (old_flags & PA_SINK_LATENCY))
791 pa_log_debug("Sink %s: LATENCY flag %s.", s->name, (s->flags & PA_SINK_LATENCY) ? "enabled" : "disabled");
793 if ((s->flags & PA_SINK_DYNAMIC_LATENCY) != (old_flags & PA_SINK_DYNAMIC_LATENCY))
794 pa_log_debug("Sink %s: DYNAMIC_LATENCY flag %s.",
795 s->name, (s->flags & PA_SINK_DYNAMIC_LATENCY) ? "enabled" : "disabled");
797 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
798 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_FLAGS_CHANGED], s);
800 if (s->monitor_source)
801 pa_source_update_flags(s->monitor_source,
802 ((mask & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
803 ((mask & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0),
804 ((value & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
805 ((value & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
807 PA_IDXSET_FOREACH(input, s->inputs, idx) {
808 if (input->origin_sink)
809 pa_sink_update_flags(input->origin_sink, mask, value);
813 /* Called from IO context, or before _put() from main context */
814 void pa_sink_set_rtpoll(pa_sink *s, pa_rtpoll *p) {
815 pa_sink_assert_ref(s);
816 pa_sink_assert_io_context(s);
818 s->thread_info.rtpoll = p;
820 if (s->monitor_source)
821 pa_source_set_rtpoll(s->monitor_source, p);
824 /* Called from main context */
825 int pa_sink_update_status(pa_sink*s) {
826 pa_sink_assert_ref(s);
827 pa_assert_ctl_context();
828 pa_assert(PA_SINK_IS_LINKED(s->state));
830 if (s->state == PA_SINK_SUSPENDED)
833 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
836 /* Called from any context - must be threadsafe */
837 void pa_sink_set_mixer_dirty(pa_sink *s, bool is_dirty) {
838 pa_atomic_store(&s->mixer_dirty, is_dirty ? 1 : 0);
841 /* Called from main context */
842 int pa_sink_suspend(pa_sink *s, bool suspend, pa_suspend_cause_t cause) {
843 pa_sink_assert_ref(s);
844 pa_assert_ctl_context();
845 pa_assert(PA_SINK_IS_LINKED(s->state));
846 pa_assert(cause != 0);
849 s->suspend_cause |= cause;
850 s->monitor_source->suspend_cause |= cause;
852 s->suspend_cause &= ~cause;
853 s->monitor_source->suspend_cause &= ~cause;
856 if (!(s->suspend_cause & PA_SUSPEND_SESSION) && (pa_atomic_load(&s->mixer_dirty) != 0)) {
857 /* This might look racy but isn't: If somebody sets mixer_dirty exactly here,
858 it'll be handled just fine. */
859 pa_sink_set_mixer_dirty(s, false);
860 pa_log_debug("Mixer is now accessible. Updating alsa mixer settings.");
861 if (s->active_port && s->set_port) {
862 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
863 struct sink_message_set_port msg = { .port = s->active_port, .ret = 0 };
864 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
867 s->set_port(s, s->active_port);
877 if ((pa_sink_get_state(s) == PA_SINK_SUSPENDED) == !!s->suspend_cause)
880 pa_log_debug("Suspend cause of sink %s is 0x%04x, %s", s->name, s->suspend_cause, s->suspend_cause ? "suspending" : "resuming");
882 if (s->suspend_cause)
883 return sink_set_state(s, PA_SINK_SUSPENDED);
885 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
888 /* Called from main context */
889 pa_queue *pa_sink_move_all_start(pa_sink *s, pa_queue *q) {
890 pa_sink_input *i, *n;
893 pa_sink_assert_ref(s);
894 pa_assert_ctl_context();
895 pa_assert(PA_SINK_IS_LINKED(s->state));
900 for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = n) {
901 n = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx));
903 pa_sink_input_ref(i);
905 if (pa_sink_input_start_move(i) >= 0)
908 pa_sink_input_unref(i);
914 /* Called from main context */
915 void pa_sink_move_all_finish(pa_sink *s, pa_queue *q, bool save) {
918 pa_sink_assert_ref(s);
919 pa_assert_ctl_context();
920 pa_assert(PA_SINK_IS_LINKED(s->state));
923 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
924 if (PA_SINK_INPUT_IS_LINKED(i->state)) {
925 if (pa_sink_input_finish_move(i, s, save) < 0)
926 pa_sink_input_fail_move(i);
929 pa_sink_input_unref(i);
932 pa_queue_free(q, NULL);
935 /* Called from main context */
936 void pa_sink_move_all_fail(pa_queue *q) {
939 pa_assert_ctl_context();
942 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
943 pa_sink_input_fail_move(i);
944 pa_sink_input_unref(i);
947 pa_queue_free(q, NULL);
950 /* Called from IO thread context */
951 size_t pa_sink_process_input_underruns(pa_sink *s, size_t left_to_play) {
956 pa_sink_assert_ref(s);
957 pa_sink_assert_io_context(s);
959 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
960 size_t uf = i->thread_info.underrun_for_sink;
962 /* Propagate down the filter tree */
963 if (i->origin_sink) {
964 size_t filter_result, left_to_play_origin;
966 /* The recursive call works in the origin sink domain ... */
967 left_to_play_origin = pa_convert_size(left_to_play, &i->sink->sample_spec, &i->origin_sink->sample_spec);
969 /* .. and returns the time to sleep before waking up. We need the
970 * underrun duration for comparisons, so we undo the subtraction on
971 * the return value... */
972 filter_result = left_to_play_origin - pa_sink_process_input_underruns(i->origin_sink, left_to_play_origin);
974 /* ... and convert it back to the master sink domain */
975 filter_result = pa_convert_size(filter_result, &i->origin_sink->sample_spec, &i->sink->sample_spec);
977 /* Remember the longest underrun so far */
978 if (filter_result > result)
979 result = filter_result;
983 /* No underrun here, move on */
985 } else if (uf >= left_to_play) {
986 /* The sink has possibly consumed all the data the sink input provided */
987 pa_sink_input_process_underrun(i);
988 } else if (uf > result) {
989 /* Remember the longest underrun so far */
995 pa_log_debug("%s: Found underrun %ld bytes ago (%ld bytes ahead in playback buffer)", s->name,
996 (long) result, (long) left_to_play - result);
997 return left_to_play - result;
1000 /* Called from IO thread context */
1001 void pa_sink_process_rewind(pa_sink *s, size_t nbytes) {
1005 pa_sink_assert_ref(s);
1006 pa_sink_assert_io_context(s);
1007 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1009 /* If nobody requested this and this is actually no real rewind
1010 * then we can short cut this. Please note that this means that
1011 * not all rewind requests triggered upstream will always be
1012 * translated in actual requests! */
1013 if (!s->thread_info.rewind_requested && nbytes <= 0)
1016 s->thread_info.rewind_nbytes = 0;
1017 s->thread_info.rewind_requested = false;
1020 pa_log_debug("Processing rewind...");
1021 if (s->flags & PA_SINK_DEFERRED_VOLUME)
1022 pa_sink_volume_change_rewind(s, nbytes);
1025 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1026 pa_sink_input_assert_ref(i);
1027 pa_sink_input_process_rewind(i, nbytes);
1031 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1032 pa_source_process_rewind(s->monitor_source, nbytes);
1036 /* Called from IO thread context */
1037 static unsigned fill_mix_info(pa_sink *s, size_t *length, pa_mix_info *info, unsigned maxinfo) {
1041 size_t mixlength = *length;
1043 pa_sink_assert_ref(s);
1044 pa_sink_assert_io_context(s);
1047 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)) && maxinfo > 0) {
1048 pa_sink_input_assert_ref(i);
1050 pa_sink_input_peek(i, *length, &info->chunk, &info->volume);
1052 if (mixlength == 0 || info->chunk.length < mixlength)
1053 mixlength = info->chunk.length;
1055 if (pa_memblock_is_silence(info->chunk.memblock)) {
1056 pa_memblock_unref(info->chunk.memblock);
1060 info->userdata = pa_sink_input_ref(i);
1062 pa_assert(info->chunk.memblock);
1063 pa_assert(info->chunk.length > 0);
1071 *length = mixlength;
1076 /* Called from IO thread context */
1077 static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned n, pa_memchunk *result) {
1081 unsigned n_unreffed = 0;
1083 pa_sink_assert_ref(s);
1084 pa_sink_assert_io_context(s);
1086 pa_assert(result->memblock);
1087 pa_assert(result->length > 0);
1089 /* We optimize for the case where the order of the inputs has not changed */
1091 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1093 pa_mix_info* m = NULL;
1095 pa_sink_input_assert_ref(i);
1097 /* Let's try to find the matching entry info the pa_mix_info array */
1098 for (j = 0; j < n; j ++) {
1100 if (info[p].userdata == i) {
1110 /* Drop read data */
1111 pa_sink_input_drop(i, result->length);
1113 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state)) {
1115 if (pa_hashmap_size(i->thread_info.direct_outputs) > 0) {
1116 void *ostate = NULL;
1117 pa_source_output *o;
1120 if (m && m->chunk.memblock) {
1122 pa_memblock_ref(c.memblock);
1123 pa_assert(result->length <= c.length);
1124 c.length = result->length;
1126 pa_memchunk_make_writable(&c, 0);
1127 pa_volume_memchunk(&c, &s->sample_spec, &m->volume);
1130 pa_memblock_ref(c.memblock);
1131 pa_assert(result->length <= c.length);
1132 c.length = result->length;
1135 while ((o = pa_hashmap_iterate(i->thread_info.direct_outputs, &ostate, NULL))) {
1136 pa_source_output_assert_ref(o);
1137 pa_assert(o->direct_on_input == i);
1138 pa_source_post_direct(s->monitor_source, o, &c);
1141 pa_memblock_unref(c.memblock);
1146 if (m->chunk.memblock) {
1147 pa_memblock_unref(m->chunk.memblock);
1148 pa_memchunk_reset(&m->chunk);
1151 pa_sink_input_unref(m->userdata);
1158 /* Now drop references to entries that are included in the
1159 * pa_mix_info array but don't exist anymore */
1161 if (n_unreffed < n) {
1162 for (; n > 0; info++, n--) {
1164 pa_sink_input_unref(info->userdata);
1165 if (info->chunk.memblock)
1166 pa_memblock_unref(info->chunk.memblock);
1170 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1171 pa_source_post(s->monitor_source, result);
1174 /* Called from IO thread context */
1175 void pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) {
1176 pa_mix_info info[MAX_MIX_CHANNELS];
1178 size_t block_size_max;
1180 pa_sink_assert_ref(s);
1181 pa_sink_assert_io_context(s);
1182 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1183 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1186 pa_assert(!s->thread_info.rewind_requested);
1187 pa_assert(s->thread_info.rewind_nbytes == 0);
1189 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1190 result->memblock = pa_memblock_ref(s->silence.memblock);
1191 result->index = s->silence.index;
1192 result->length = PA_MIN(s->silence.length, length);
1199 length = pa_frame_align(MIX_BUFFER_LENGTH, &s->sample_spec);
1201 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1202 if (length > block_size_max)
1203 length = pa_frame_align(block_size_max, &s->sample_spec);
1205 pa_assert(length > 0);
1207 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1211 *result = s->silence;
1212 pa_memblock_ref(result->memblock);
1214 if (result->length > length)
1215 result->length = length;
1217 } else if (n == 1) {
1220 *result = info[0].chunk;
1221 pa_memblock_ref(result->memblock);
1223 if (result->length > length)
1224 result->length = length;
1226 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1228 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume)) {
1229 pa_memblock_unref(result->memblock);
1230 pa_silence_memchunk_get(&s->core->silence_cache,
1235 } else if (!pa_cvolume_is_norm(&volume)) {
1236 pa_memchunk_make_writable(result, 0);
1237 pa_volume_memchunk(result, &s->sample_spec, &volume);
1241 result->memblock = pa_memblock_new(s->core->mempool, length);
1243 ptr = pa_memblock_acquire(result->memblock);
1244 result->length = pa_mix(info, n,
1247 &s->thread_info.soft_volume,
1248 s->thread_info.soft_muted);
1249 pa_memblock_release(result->memblock);
1254 inputs_drop(s, info, n, result);
1259 /* Called from IO thread context */
1260 void pa_sink_render_into(pa_sink*s, pa_memchunk *target) {
1261 pa_mix_info info[MAX_MIX_CHANNELS];
1263 size_t length, block_size_max;
1265 pa_sink_assert_ref(s);
1266 pa_sink_assert_io_context(s);
1267 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1269 pa_assert(target->memblock);
1270 pa_assert(target->length > 0);
1271 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1273 pa_assert(!s->thread_info.rewind_requested);
1274 pa_assert(s->thread_info.rewind_nbytes == 0);
1276 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1277 pa_silence_memchunk(target, &s->sample_spec);
1283 length = target->length;
1284 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1285 if (length > block_size_max)
1286 length = pa_frame_align(block_size_max, &s->sample_spec);
1288 pa_assert(length > 0);
1290 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1293 if (target->length > length)
1294 target->length = length;
1296 pa_silence_memchunk(target, &s->sample_spec);
1297 } else if (n == 1) {
1300 if (target->length > length)
1301 target->length = length;
1303 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1305 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume))
1306 pa_silence_memchunk(target, &s->sample_spec);
1310 vchunk = info[0].chunk;
1311 pa_memblock_ref(vchunk.memblock);
1313 if (vchunk.length > length)
1314 vchunk.length = length;
1316 if (!pa_cvolume_is_norm(&volume)) {
1317 pa_memchunk_make_writable(&vchunk, 0);
1318 pa_volume_memchunk(&vchunk, &s->sample_spec, &volume);
1321 pa_memchunk_memcpy(target, &vchunk);
1322 pa_memblock_unref(vchunk.memblock);
1328 ptr = pa_memblock_acquire(target->memblock);
1330 target->length = pa_mix(info, n,
1331 (uint8_t*) ptr + target->index, length,
1333 &s->thread_info.soft_volume,
1334 s->thread_info.soft_muted);
1336 pa_memblock_release(target->memblock);
1339 inputs_drop(s, info, n, target);
1344 /* Called from IO thread context */
1345 void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
1349 pa_sink_assert_ref(s);
1350 pa_sink_assert_io_context(s);
1351 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1353 pa_assert(target->memblock);
1354 pa_assert(target->length > 0);
1355 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1357 pa_assert(!s->thread_info.rewind_requested);
1358 pa_assert(s->thread_info.rewind_nbytes == 0);
1360 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1361 pa_silence_memchunk(target, &s->sample_spec);
1374 pa_sink_render_into(s, &chunk);
1383 /* Called from IO thread context */
1384 void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) {
1385 pa_sink_assert_ref(s);
1386 pa_sink_assert_io_context(s);
1387 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1388 pa_assert(length > 0);
1389 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1392 pa_assert(!s->thread_info.rewind_requested);
1393 pa_assert(s->thread_info.rewind_nbytes == 0);
1397 pa_sink_render(s, length, result);
1399 if (result->length < length) {
1402 pa_memchunk_make_writable(result, length);
1404 chunk.memblock = result->memblock;
1405 chunk.index = result->index + result->length;
1406 chunk.length = length - result->length;
1408 pa_sink_render_into_full(s, &chunk);
1410 result->length = length;
1416 /* Called from main thread */
1417 int pa_sink_reconfigure(pa_sink *s, pa_sample_spec *spec, bool passthrough) {
1419 pa_sample_spec desired_spec;
1420 uint32_t default_rate = s->default_sample_rate;
1421 uint32_t alternate_rate = s->alternate_sample_rate;
1424 bool default_rate_is_usable = false;
1425 bool alternate_rate_is_usable = false;
1426 bool avoid_resampling = s->core->avoid_resampling;
1428 /* We currently only try to reconfigure the sample rate */
1430 if (pa_sample_spec_equal(spec, &s->sample_spec))
1433 if (!s->reconfigure)
1436 if (PA_UNLIKELY(default_rate == alternate_rate && !passthrough && !avoid_resampling)) {
1437 pa_log_debug("Default and alternate sample rates are the same, so there is no point in switching.");
1441 if (PA_SINK_IS_RUNNING(s->state)) {
1442 pa_log_info("Cannot update rate, SINK_IS_RUNNING, will keep using %u Hz",
1443 s->sample_spec.rate);
1447 if (s->monitor_source) {
1448 if (PA_SOURCE_IS_RUNNING(s->monitor_source->state) == true) {
1449 pa_log_info("Cannot update rate, monitor source is RUNNING");
1454 if (PA_UNLIKELY(!pa_sample_spec_valid(spec)))
1457 desired_spec = s->sample_spec;
1460 /* We have to try to use the sink input rate */
1461 desired_spec.rate = spec->rate;
1463 } else if (avoid_resampling && (spec->rate >= default_rate || spec->rate >= alternate_rate)) {
1464 /* We just try to set the sink input's sample rate if it's not too low */
1465 desired_spec.rate = spec->rate;
1467 } else if (default_rate == spec->rate || alternate_rate == spec->rate) {
1468 /* We can directly try to use this rate */
1469 desired_spec.rate = spec->rate;
1472 /* See if we can pick a rate that results in less resampling effort */
1473 if (default_rate % 11025 == 0 && spec->rate % 11025 == 0)
1474 default_rate_is_usable = true;
1475 if (default_rate % 4000 == 0 && spec->rate % 4000 == 0)
1476 default_rate_is_usable = true;
1477 if (alternate_rate && alternate_rate % 11025 == 0 && spec->rate % 11025 == 0)
1478 alternate_rate_is_usable = true;
1479 if (alternate_rate && alternate_rate % 4000 == 0 && spec->rate % 4000 == 0)
1480 alternate_rate_is_usable = true;
1482 if (alternate_rate_is_usable && !default_rate_is_usable)
1483 desired_spec.rate = alternate_rate;
1485 desired_spec.rate = default_rate;
1488 if (pa_sample_spec_equal(&desired_spec, &s->sample_spec) && passthrough == pa_sink_is_passthrough(s))
1491 if (!passthrough && pa_sink_used_by(s) > 0)
1494 pa_log_debug("Suspending sink %s due to changing format.", s->name);
1495 pa_sink_suspend(s, true, PA_SUSPEND_INTERNAL);
1497 if (s->reconfigure(s, &desired_spec, passthrough) >= 0) {
1498 /* update monitor source as well */
1499 if (s->monitor_source && !passthrough)
1500 pa_source_reconfigure(s->monitor_source, &desired_spec, false);
1501 pa_log_info("Changed format successfully");
1503 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1504 if (i->state == PA_SINK_INPUT_CORKED)
1505 pa_sink_input_update_rate(i);
1511 pa_sink_suspend(s, false, PA_SUSPEND_INTERNAL);
1516 /* Called from main thread */
1517 pa_usec_t pa_sink_get_latency(pa_sink *s) {
1520 pa_sink_assert_ref(s);
1521 pa_assert_ctl_context();
1522 pa_assert(PA_SINK_IS_LINKED(s->state));
1524 /* The returned value is supposed to be in the time domain of the sound card! */
1526 if (s->state == PA_SINK_SUSPENDED)
1529 if (!(s->flags & PA_SINK_LATENCY))
1532 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1534 /* the return value is unsigned, so check that the offset can be added to usec without
1536 if (-s->port_latency_offset <= usec)
1537 usec += s->port_latency_offset;
1541 return (pa_usec_t)usec;
1544 /* Called from IO thread */
1545 int64_t pa_sink_get_latency_within_thread(pa_sink *s, bool allow_negative) {
1549 pa_sink_assert_ref(s);
1550 pa_sink_assert_io_context(s);
1551 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1553 /* The returned value is supposed to be in the time domain of the sound card! */
1555 if (s->thread_info.state == PA_SINK_SUSPENDED)
1558 if (!(s->flags & PA_SINK_LATENCY))
1561 o = PA_MSGOBJECT(s);
1563 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1565 o->process_msg(o, PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL);
1567 /* If allow_negative is false, the call should only return positive values, */
1568 usec += s->thread_info.port_latency_offset;
1569 if (!allow_negative && usec < 0)
1575 /* Called from the main thread (and also from the IO thread while the main
1576 * thread is waiting).
1578 * When a sink uses volume sharing, it never has the PA_SINK_FLAT_VOLUME flag
1579 * set. Instead, flat volume mode is detected by checking whether the root sink
1580 * has the flag set. */
1581 bool pa_sink_flat_volume_enabled(pa_sink *s) {
1582 pa_sink_assert_ref(s);
1584 s = pa_sink_get_master(s);
1587 return (s->flags & PA_SINK_FLAT_VOLUME);
1592 /* Called from the main thread (and also from the IO thread while the main
1593 * thread is waiting). */
1594 pa_sink *pa_sink_get_master(pa_sink *s) {
1595 pa_sink_assert_ref(s);
1597 while (s && (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1598 if (PA_UNLIKELY(!s->input_to_master))
1601 s = s->input_to_master->sink;
1607 /* Called from main context */
1608 bool pa_sink_is_filter(pa_sink *s) {
1609 pa_sink_assert_ref(s);
1611 return (s->input_to_master != NULL);
1614 /* Called from main context */
1615 bool pa_sink_is_passthrough(pa_sink *s) {
1616 pa_sink_input *alt_i;
1619 pa_sink_assert_ref(s);
1621 /* one and only one PASSTHROUGH input can possibly be connected */
1622 if (pa_idxset_size(s->inputs) == 1) {
1623 alt_i = pa_idxset_first(s->inputs, &idx);
1625 if (pa_sink_input_is_passthrough(alt_i))
1632 /* Called from main context */
1633 void pa_sink_enter_passthrough(pa_sink *s) {
1636 /* The sink implementation is reconfigured for passthrough in
1637 * pa_sink_reconfigure(). This function sets the PA core objects to
1638 * passthrough mode. */
1640 /* disable the monitor in passthrough mode */
1641 if (s->monitor_source) {
1642 pa_log_debug("Suspending monitor source %s, because the sink is entering the passthrough mode.", s->monitor_source->name);
1643 pa_source_suspend(s->monitor_source, true, PA_SUSPEND_PASSTHROUGH);
1646 /* set the volume to NORM */
1647 s->saved_volume = *pa_sink_get_volume(s, true);
1648 s->saved_save_volume = s->save_volume;
1650 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1651 pa_sink_set_volume(s, &volume, true, false);
1653 pa_log_debug("Suspending/Restarting sink %s to enter passthrough mode", s->name);
1656 /* Called from main context */
1657 void pa_sink_leave_passthrough(pa_sink *s) {
1658 /* Unsuspend monitor */
1659 if (s->monitor_source) {
1660 pa_log_debug("Resuming monitor source %s, because the sink is leaving the passthrough mode.", s->monitor_source->name);
1661 pa_source_suspend(s->monitor_source, false, PA_SUSPEND_PASSTHROUGH);
1664 /* Restore sink volume to what it was before we entered passthrough mode */
1665 pa_sink_set_volume(s, &s->saved_volume, true, s->saved_save_volume);
1667 pa_cvolume_init(&s->saved_volume);
1668 s->saved_save_volume = false;
1672 /* Called from main context. */
1673 static void compute_reference_ratio(pa_sink_input *i) {
1675 pa_cvolume remapped;
1679 pa_assert(pa_sink_flat_volume_enabled(i->sink));
1682 * Calculates the reference ratio from the sink's reference
1683 * volume. This basically calculates:
1685 * i->reference_ratio = i->volume / i->sink->reference_volume
1688 remapped = i->sink->reference_volume;
1689 pa_cvolume_remap(&remapped, &i->sink->channel_map, &i->channel_map);
1691 ratio = i->reference_ratio;
1693 for (c = 0; c < i->sample_spec.channels; c++) {
1695 /* We don't update when the sink volume is 0 anyway */
1696 if (remapped.values[c] <= PA_VOLUME_MUTED)
1699 /* Don't update the reference ratio unless necessary */
1700 if (pa_sw_volume_multiply(
1702 remapped.values[c]) == i->volume.values[c])
1705 ratio.values[c] = pa_sw_volume_divide(
1706 i->volume.values[c],
1707 remapped.values[c]);
1710 pa_sink_input_set_reference_ratio(i, &ratio);
1713 /* Called from main context. Only called for the root sink in volume sharing
1714 * cases, except for internal recursive calls. */
1715 static void compute_reference_ratios(pa_sink *s) {
1719 pa_sink_assert_ref(s);
1720 pa_assert_ctl_context();
1721 pa_assert(PA_SINK_IS_LINKED(s->state));
1722 pa_assert(pa_sink_flat_volume_enabled(s));
1724 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1725 compute_reference_ratio(i);
1727 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
1728 && PA_SINK_IS_LINKED(i->origin_sink->state))
1729 compute_reference_ratios(i->origin_sink);
1733 /* Called from main context. Only called for the root sink in volume sharing
1734 * cases, except for internal recursive calls. */
1735 static void compute_real_ratios(pa_sink *s) {
1739 pa_sink_assert_ref(s);
1740 pa_assert_ctl_context();
1741 pa_assert(PA_SINK_IS_LINKED(s->state));
1742 pa_assert(pa_sink_flat_volume_enabled(s));
1744 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1746 pa_cvolume remapped;
1748 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1749 /* The origin sink uses volume sharing, so this input's real ratio
1750 * is handled as a special case - the real ratio must be 0 dB, and
1751 * as a result i->soft_volume must equal i->volume_factor. */
1752 pa_cvolume_reset(&i->real_ratio, i->real_ratio.channels);
1753 i->soft_volume = i->volume_factor;
1755 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1756 compute_real_ratios(i->origin_sink);
1762 * This basically calculates:
1764 * i->real_ratio := i->volume / s->real_volume
1765 * i->soft_volume := i->real_ratio * i->volume_factor
1768 remapped = s->real_volume;
1769 pa_cvolume_remap(&remapped, &s->channel_map, &i->channel_map);
1771 i->real_ratio.channels = i->sample_spec.channels;
1772 i->soft_volume.channels = i->sample_spec.channels;
1774 for (c = 0; c < i->sample_spec.channels; c++) {
1776 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1777 /* We leave i->real_ratio untouched */
1778 i->soft_volume.values[c] = PA_VOLUME_MUTED;
1782 /* Don't lose accuracy unless necessary */
1783 if (pa_sw_volume_multiply(
1784 i->real_ratio.values[c],
1785 remapped.values[c]) != i->volume.values[c])
1787 i->real_ratio.values[c] = pa_sw_volume_divide(
1788 i->volume.values[c],
1789 remapped.values[c]);
1791 i->soft_volume.values[c] = pa_sw_volume_multiply(
1792 i->real_ratio.values[c],
1793 i->volume_factor.values[c]);
1796 /* We don't copy the soft_volume to the thread_info data
1797 * here. That must be done by the caller */
1801 static pa_cvolume *cvolume_remap_minimal_impact(
1803 const pa_cvolume *template,
1804 const pa_channel_map *from,
1805 const pa_channel_map *to) {
1810 pa_assert(template);
1813 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1814 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1816 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1817 * mapping from sink input to sink volumes:
1819 * If template is a possible remapping from v it is used instead
1820 * of remapping anew.
1822 * If the channel maps don't match we set an all-channel volume on
1823 * the sink to ensure that changing a volume on one stream has no
1824 * effect that cannot be compensated for in another stream that
1825 * does not have the same channel map as the sink. */
1827 if (pa_channel_map_equal(from, to))
1831 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1836 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1840 /* Called from main thread. Only called for the root sink in volume sharing
1841 * cases, except for internal recursive calls. */
1842 static void get_maximum_input_volume(pa_sink *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1846 pa_sink_assert_ref(s);
1847 pa_assert(max_volume);
1848 pa_assert(channel_map);
1849 pa_assert(pa_sink_flat_volume_enabled(s));
1851 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1852 pa_cvolume remapped;
1854 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1855 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1856 get_maximum_input_volume(i->origin_sink, max_volume, channel_map);
1858 /* Ignore this input. The origin sink uses volume sharing, so this
1859 * input's volume will be set to be equal to the root sink's real
1860 * volume. Obviously this input's current volume must not then
1861 * affect what the root sink's real volume will be. */
1865 remapped = i->volume;
1866 cvolume_remap_minimal_impact(&remapped, max_volume, &i->channel_map, channel_map);
1867 pa_cvolume_merge(max_volume, max_volume, &remapped);
1871 /* Called from main thread. Only called for the root sink in volume sharing
1872 * cases, except for internal recursive calls. */
1873 static bool has_inputs(pa_sink *s) {
1877 pa_sink_assert_ref(s);
1879 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1880 if (!i->origin_sink || !(i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || has_inputs(i->origin_sink))
1887 /* Called from main thread. Only called for the root sink in volume sharing
1888 * cases, except for internal recursive calls. */
1889 static void update_real_volume(pa_sink *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1893 pa_sink_assert_ref(s);
1894 pa_assert(new_volume);
1895 pa_assert(channel_map);
1897 s->real_volume = *new_volume;
1898 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1900 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1901 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1902 if (pa_sink_flat_volume_enabled(s)) {
1903 pa_cvolume new_input_volume;
1905 /* Follow the root sink's real volume. */
1906 new_input_volume = *new_volume;
1907 pa_cvolume_remap(&new_input_volume, channel_map, &i->channel_map);
1908 pa_sink_input_set_volume_direct(i, &new_input_volume);
1909 compute_reference_ratio(i);
1912 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1913 update_real_volume(i->origin_sink, new_volume, channel_map);
1918 /* Called from main thread. Only called for the root sink in shared volume
1920 static void compute_real_volume(pa_sink *s) {
1921 pa_sink_assert_ref(s);
1922 pa_assert_ctl_context();
1923 pa_assert(PA_SINK_IS_LINKED(s->state));
1924 pa_assert(pa_sink_flat_volume_enabled(s));
1925 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
1927 /* This determines the maximum volume of all streams and sets
1928 * s->real_volume accordingly. */
1930 if (!has_inputs(s)) {
1931 /* In the special case that we have no sink inputs we leave the
1932 * volume unmodified. */
1933 update_real_volume(s, &s->reference_volume, &s->channel_map);
1937 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1939 /* First let's determine the new maximum volume of all inputs
1940 * connected to this sink */
1941 get_maximum_input_volume(s, &s->real_volume, &s->channel_map);
1942 update_real_volume(s, &s->real_volume, &s->channel_map);
1944 /* Then, let's update the real ratios/soft volumes of all inputs
1945 * connected to this sink */
1946 compute_real_ratios(s);
1949 /* Called from main thread. Only called for the root sink in shared volume
1950 * cases, except for internal recursive calls. */
1951 static void propagate_reference_volume(pa_sink *s) {
1955 pa_sink_assert_ref(s);
1956 pa_assert_ctl_context();
1957 pa_assert(PA_SINK_IS_LINKED(s->state));
1958 pa_assert(pa_sink_flat_volume_enabled(s));
1960 /* This is called whenever the sink volume changes that is not
1961 * caused by a sink input volume change. We need to fix up the
1962 * sink input volumes accordingly */
1964 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1965 pa_cvolume new_volume;
1967 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1968 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1969 propagate_reference_volume(i->origin_sink);
1971 /* Since the origin sink uses volume sharing, this input's volume
1972 * needs to be updated to match the root sink's real volume, but
1973 * that will be done later in update_real_volume(). */
1977 /* This basically calculates:
1979 * i->volume := s->reference_volume * i->reference_ratio */
1981 new_volume = s->reference_volume;
1982 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
1983 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
1984 pa_sink_input_set_volume_direct(i, &new_volume);
1988 /* Called from main thread. Only called for the root sink in volume sharing
1989 * cases, except for internal recursive calls. The return value indicates
1990 * whether any reference volume actually changed. */
1991 static bool update_reference_volume(pa_sink *s, const pa_cvolume *v, const pa_channel_map *channel_map, bool save) {
1993 bool reference_volume_changed;
1997 pa_sink_assert_ref(s);
1998 pa_assert(PA_SINK_IS_LINKED(s->state));
2000 pa_assert(channel_map);
2001 pa_assert(pa_cvolume_valid(v));
2004 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
2006 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
2007 pa_sink_set_reference_volume_direct(s, &volume);
2009 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
2011 if (!reference_volume_changed && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2012 /* If the root sink's volume doesn't change, then there can't be any
2013 * changes in the other sinks in the sink tree either.
2015 * It's probably theoretically possible that even if the root sink's
2016 * volume changes slightly, some filter sink doesn't change its volume
2017 * due to rounding errors. If that happens, we still want to propagate
2018 * the changed root sink volume to the sinks connected to the
2019 * intermediate sink that didn't change its volume. This theoretical
2020 * possibility is the reason why we have that !(s->flags &
2021 * PA_SINK_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
2022 * notice even if we returned here false always if
2023 * reference_volume_changed is false. */
2026 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2027 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
2028 && PA_SINK_IS_LINKED(i->origin_sink->state))
2029 update_reference_volume(i->origin_sink, v, channel_map, false);
2035 /* Called from main thread */
2036 void pa_sink_set_volume(
2038 const pa_cvolume *volume,
2042 pa_cvolume new_reference_volume;
2045 pa_sink_assert_ref(s);
2046 pa_assert_ctl_context();
2047 pa_assert(PA_SINK_IS_LINKED(s->state));
2048 pa_assert(!volume || pa_cvolume_valid(volume));
2049 pa_assert(volume || pa_sink_flat_volume_enabled(s));
2050 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
2052 /* make sure we don't change the volume when a PASSTHROUGH input is connected ...
2053 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
2054 if (pa_sink_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
2055 pa_log_warn("Cannot change volume, Sink is connected to PASSTHROUGH input");
2059 /* In case of volume sharing, the volume is set for the root sink first,
2060 * from which it's then propagated to the sharing sinks. */
2061 root_sink = pa_sink_get_master(s);
2063 if (PA_UNLIKELY(!root_sink))
2066 /* As a special exception we accept mono volumes on all sinks --
2067 * even on those with more complex channel maps */
2070 if (pa_cvolume_compatible(volume, &s->sample_spec))
2071 new_reference_volume = *volume;
2073 new_reference_volume = s->reference_volume;
2074 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
2077 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2079 if (update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save)) {
2080 if (pa_sink_flat_volume_enabled(root_sink)) {
2081 /* OK, propagate this volume change back to the inputs */
2082 propagate_reference_volume(root_sink);
2084 /* And now recalculate the real volume */
2085 compute_real_volume(root_sink);
2087 update_real_volume(root_sink, &root_sink->reference_volume, &root_sink->channel_map);
2091 /* If volume is NULL we synchronize the sink's real and
2092 * reference volumes with the stream volumes. */
2094 pa_assert(pa_sink_flat_volume_enabled(root_sink));
2096 /* Ok, let's determine the new real volume */
2097 compute_real_volume(root_sink);
2099 /* Let's 'push' the reference volume if necessary */
2100 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_sink->real_volume);
2101 /* If the sink and its root don't have the same number of channels, we need to remap */
2102 if (s != root_sink && !pa_channel_map_equal(&s->channel_map, &root_sink->channel_map))
2103 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2104 update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save);
2106 /* Now that the reference volume is updated, we can update the streams'
2107 * reference ratios. */
2108 compute_reference_ratios(root_sink);
2111 if (root_sink->set_volume) {
2112 /* If we have a function set_volume(), then we do not apply a
2113 * soft volume by default. However, set_volume() is free to
2114 * apply one to root_sink->soft_volume */
2116 pa_cvolume_reset(&root_sink->soft_volume, root_sink->sample_spec.channels);
2117 if (!(root_sink->flags & PA_SINK_DEFERRED_VOLUME))
2118 root_sink->set_volume(root_sink);
2121 /* If we have no function set_volume(), then the soft volume
2122 * becomes the real volume */
2123 root_sink->soft_volume = root_sink->real_volume;
2125 /* This tells the sink that soft volume and/or real volume changed */
2127 pa_assert_se(pa_asyncmsgq_send(root_sink->asyncmsgq, PA_MSGOBJECT(root_sink), PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
2130 /* Called from the io thread if sync volume is used, otherwise from the main thread.
2131 * Only to be called by sink implementor */
2132 void pa_sink_set_soft_volume(pa_sink *s, const pa_cvolume *volume) {
2134 pa_sink_assert_ref(s);
2135 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2137 if (s->flags & PA_SINK_DEFERRED_VOLUME)
2138 pa_sink_assert_io_context(s);
2140 pa_assert_ctl_context();
2143 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
2145 s->soft_volume = *volume;
2147 if (PA_SINK_IS_LINKED(s->state) && !(s->flags & PA_SINK_DEFERRED_VOLUME))
2148 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
2150 s->thread_info.soft_volume = s->soft_volume;
2153 /* Called from the main thread. Only called for the root sink in volume sharing
2154 * cases, except for internal recursive calls. */
2155 static void propagate_real_volume(pa_sink *s, const pa_cvolume *old_real_volume) {
2159 pa_sink_assert_ref(s);
2160 pa_assert(old_real_volume);
2161 pa_assert_ctl_context();
2162 pa_assert(PA_SINK_IS_LINKED(s->state));
2164 /* This is called when the hardware's real volume changes due to
2165 * some external event. We copy the real volume into our
2166 * reference volume and then rebuild the stream volumes based on
2167 * i->real_ratio which should stay fixed. */
2169 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
2170 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
2173 /* 1. Make the real volume the reference volume */
2174 update_reference_volume(s, &s->real_volume, &s->channel_map, true);
2177 if (pa_sink_flat_volume_enabled(s)) {
2179 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2180 pa_cvolume new_volume;
2182 /* 2. Since the sink's reference and real volumes are equal
2183 * now our ratios should be too. */
2184 pa_sink_input_set_reference_ratio(i, &i->real_ratio);
2186 /* 3. Recalculate the new stream reference volume based on the
2187 * reference ratio and the sink's reference volume.
2189 * This basically calculates:
2191 * i->volume = s->reference_volume * i->reference_ratio
2193 * This is identical to propagate_reference_volume() */
2194 new_volume = s->reference_volume;
2195 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
2196 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
2197 pa_sink_input_set_volume_direct(i, &new_volume);
2199 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
2200 && PA_SINK_IS_LINKED(i->origin_sink->state))
2201 propagate_real_volume(i->origin_sink, old_real_volume);
2205 /* Something got changed in the hardware. It probably makes sense
2206 * to save changed hw settings given that hw volume changes not
2207 * triggered by PA are almost certainly done by the user. */
2208 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2209 s->save_volume = true;
2212 /* Called from io thread */
2213 void pa_sink_update_volume_and_mute(pa_sink *s) {
2215 pa_sink_assert_io_context(s);
2217 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
2220 /* Called from main thread */
2221 const pa_cvolume *pa_sink_get_volume(pa_sink *s, bool force_refresh) {
2222 pa_sink_assert_ref(s);
2223 pa_assert_ctl_context();
2224 pa_assert(PA_SINK_IS_LINKED(s->state));
2226 if (s->refresh_volume || force_refresh) {
2227 struct pa_cvolume old_real_volume;
2229 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2231 old_real_volume = s->real_volume;
2233 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume)
2236 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
2238 update_real_volume(s, &s->real_volume, &s->channel_map);
2239 propagate_real_volume(s, &old_real_volume);
2242 return &s->reference_volume;
2245 /* Called from main thread. In volume sharing cases, only the root sink may
2247 void pa_sink_volume_changed(pa_sink *s, const pa_cvolume *new_real_volume) {
2248 pa_cvolume old_real_volume;
2250 pa_sink_assert_ref(s);
2251 pa_assert_ctl_context();
2252 pa_assert(PA_SINK_IS_LINKED(s->state));
2253 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2255 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2257 old_real_volume = s->real_volume;
2258 update_real_volume(s, new_real_volume, &s->channel_map);
2259 propagate_real_volume(s, &old_real_volume);
2262 /* Called from main thread */
2263 void pa_sink_set_mute(pa_sink *s, bool mute, bool save) {
2266 pa_sink_assert_ref(s);
2267 pa_assert_ctl_context();
2269 old_muted = s->muted;
2271 if (mute == old_muted) {
2272 s->save_muted |= save;
2277 s->save_muted = save;
2279 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->set_mute) {
2280 s->set_mute_in_progress = true;
2282 s->set_mute_in_progress = false;
2285 if (!PA_SINK_IS_LINKED(s->state))
2288 pa_log_debug("The mute of sink %s changed from %s to %s.", s->name, pa_yes_no(old_muted), pa_yes_no(mute));
2289 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2290 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2291 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_MUTE_CHANGED], s);
2294 /* Called from main thread */
2295 bool pa_sink_get_mute(pa_sink *s, bool force_refresh) {
2297 pa_sink_assert_ref(s);
2298 pa_assert_ctl_context();
2299 pa_assert(PA_SINK_IS_LINKED(s->state));
2301 if ((s->refresh_muted || force_refresh) && s->get_mute) {
2304 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2305 if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MUTE, &mute, 0, NULL) >= 0)
2306 pa_sink_mute_changed(s, mute);
2308 if (s->get_mute(s, &mute) >= 0)
2309 pa_sink_mute_changed(s, mute);
2316 /* Called from main thread */
2317 void pa_sink_mute_changed(pa_sink *s, bool new_muted) {
2318 pa_sink_assert_ref(s);
2319 pa_assert_ctl_context();
2320 pa_assert(PA_SINK_IS_LINKED(s->state));
2322 if (s->set_mute_in_progress)
2325 /* pa_sink_set_mute() does this same check, so this may appear redundant,
2326 * but we must have this here also, because the save parameter of
2327 * pa_sink_set_mute() would otherwise have unintended side effects (saving
2328 * the mute state when it shouldn't be saved). */
2329 if (new_muted == s->muted)
2332 pa_sink_set_mute(s, new_muted, true);
2335 /* Called from main thread */
2336 bool pa_sink_update_proplist(pa_sink *s, pa_update_mode_t mode, pa_proplist *p) {
2337 pa_sink_assert_ref(s);
2338 pa_assert_ctl_context();
2341 pa_proplist_update(s->proplist, mode, p);
2343 if (PA_SINK_IS_LINKED(s->state)) {
2344 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2345 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2351 /* Called from main thread */
2352 /* FIXME -- this should be dropped and be merged into pa_sink_update_proplist() */
2353 void pa_sink_set_description(pa_sink *s, const char *description) {
2355 pa_sink_assert_ref(s);
2356 pa_assert_ctl_context();
2358 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
2361 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2363 if (old && description && pa_streq(old, description))
2367 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
2369 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2371 if (s->monitor_source) {
2374 n = pa_sprintf_malloc("Monitor Source of %s", description ? description : s->name);
2375 pa_source_set_description(s->monitor_source, n);
2379 if (PA_SINK_IS_LINKED(s->state)) {
2380 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2381 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2385 /* Called from main thread */
2386 unsigned pa_sink_linked_by(pa_sink *s) {
2389 pa_sink_assert_ref(s);
2390 pa_assert_ctl_context();
2391 pa_assert(PA_SINK_IS_LINKED(s->state));
2393 ret = pa_idxset_size(s->inputs);
2395 /* We add in the number of streams connected to us here. Please
2396 * note the asymmetry to pa_sink_used_by()! */
2398 if (s->monitor_source)
2399 ret += pa_source_linked_by(s->monitor_source);
2404 /* Called from main thread */
2405 unsigned pa_sink_used_by(pa_sink *s) {
2408 pa_sink_assert_ref(s);
2409 pa_assert_ctl_context();
2410 pa_assert(PA_SINK_IS_LINKED(s->state));
2412 ret = pa_idxset_size(s->inputs);
2413 pa_assert(ret >= s->n_corked);
2415 /* Streams connected to our monitor source do not matter for
2416 * pa_sink_used_by()!.*/
2418 return ret - s->n_corked;
2421 /* Called from main thread */
2422 unsigned pa_sink_check_suspend(pa_sink *s, pa_sink_input *ignore_input, pa_source_output *ignore_output) {
2427 pa_sink_assert_ref(s);
2428 pa_assert_ctl_context();
2430 if (!PA_SINK_IS_LINKED(s->state))
2435 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2436 pa_sink_input_state_t st;
2438 if (i == ignore_input)
2441 st = pa_sink_input_get_state(i);
2443 /* We do not assert here. It is perfectly valid for a sink input to
2444 * be in the INIT state (i.e. created, marked done but not yet put)
2445 * and we should not care if it's unlinked as it won't contribute
2446 * towards our busy status.
2448 if (!PA_SINK_INPUT_IS_LINKED(st))
2451 if (st == PA_SINK_INPUT_CORKED)
2454 if (i->flags & PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND)
2460 if (s->monitor_source)
2461 ret += pa_source_check_suspend(s->monitor_source, ignore_output);
2466 const char *pa_sink_state_to_string(pa_sink_state_t state) {
2468 case PA_SINK_INIT: return "INIT";
2469 case PA_SINK_IDLE: return "IDLE";
2470 case PA_SINK_RUNNING: return "RUNNING";
2471 case PA_SINK_SUSPENDED: return "SUSPENDED";
2472 case PA_SINK_UNLINKED: return "UNLINKED";
2473 case PA_SINK_INVALID_STATE: return "INVALID_STATE";
2476 pa_assert_not_reached();
2479 /* Called from the IO thread */
2480 static void sync_input_volumes_within_thread(pa_sink *s) {
2484 pa_sink_assert_ref(s);
2485 pa_sink_assert_io_context(s);
2487 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2488 if (pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume))
2491 i->thread_info.soft_volume = i->soft_volume;
2492 pa_sink_input_request_rewind(i, 0, true, false, false);
2496 /* Called from the IO thread. Only called for the root sink in volume sharing
2497 * cases, except for internal recursive calls. */
2498 static void set_shared_volume_within_thread(pa_sink *s) {
2499 pa_sink_input *i = NULL;
2502 pa_sink_assert_ref(s);
2504 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
2506 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2507 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2508 set_shared_volume_within_thread(i->origin_sink);
2512 /* Called from IO thread, except when it is not */
2513 int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
2514 pa_sink *s = PA_SINK(o);
2515 pa_sink_assert_ref(s);
2517 switch ((pa_sink_message_t) code) {
2519 case PA_SINK_MESSAGE_ADD_INPUT: {
2520 pa_sink_input *i = PA_SINK_INPUT(userdata);
2522 /* If you change anything here, make sure to change the
2523 * sink input handling a few lines down at
2524 * PA_SINK_MESSAGE_FINISH_MOVE, too. */
2526 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2528 /* Since the caller sleeps in pa_sink_input_put(), we can
2529 * safely access data outside of thread_info even though
2532 if ((i->thread_info.sync_prev = i->sync_prev)) {
2533 pa_assert(i->sink == i->thread_info.sync_prev->sink);
2534 pa_assert(i->sync_prev->sync_next == i);
2535 i->thread_info.sync_prev->thread_info.sync_next = i;
2538 if ((i->thread_info.sync_next = i->sync_next)) {
2539 pa_assert(i->sink == i->thread_info.sync_next->sink);
2540 pa_assert(i->sync_next->sync_prev == i);
2541 i->thread_info.sync_next->thread_info.sync_prev = i;
2544 pa_sink_input_attach(i);
2546 pa_sink_input_set_state_within_thread(i, i->state);
2548 /* The requested latency of the sink input needs to be fixed up and
2549 * then configured on the sink. If this causes the sink latency to
2550 * go down, the sink implementor is responsible for doing a rewind
2551 * in the update_requested_latency() callback to ensure that the
2552 * sink buffer doesn't contain more data than what the new latency
2555 * XXX: Does it really make sense to push this responsibility to
2556 * the sink implementors? Wouldn't it be better to do it once in
2557 * the core than many times in the modules? */
2559 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2560 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2562 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2563 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2565 /* We don't rewind here automatically. This is left to the
2566 * sink input implementor because some sink inputs need a
2567 * slow start, i.e. need some time to buffer client
2568 * samples before beginning streaming.
2570 * XXX: Does it really make sense to push this functionality to
2571 * the sink implementors? Wouldn't it be better to do it once in
2572 * the core than many times in the modules? */
2574 /* In flat volume mode we need to update the volume as
2576 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2579 case PA_SINK_MESSAGE_REMOVE_INPUT: {
2580 pa_sink_input *i = PA_SINK_INPUT(userdata);
2582 /* If you change anything here, make sure to change the
2583 * sink input handling a few lines down at
2584 * PA_SINK_MESSAGE_START_MOVE, too. */
2586 pa_sink_input_detach(i);
2588 pa_sink_input_set_state_within_thread(i, i->state);
2590 /* Since the caller sleeps in pa_sink_input_unlink(),
2591 * we can safely access data outside of thread_info even
2592 * though it is mutable */
2594 pa_assert(!i->sync_prev);
2595 pa_assert(!i->sync_next);
2597 if (i->thread_info.sync_prev) {
2598 i->thread_info.sync_prev->thread_info.sync_next = i->thread_info.sync_prev->sync_next;
2599 i->thread_info.sync_prev = NULL;
2602 if (i->thread_info.sync_next) {
2603 i->thread_info.sync_next->thread_info.sync_prev = i->thread_info.sync_next->sync_prev;
2604 i->thread_info.sync_next = NULL;
2607 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2608 pa_sink_invalidate_requested_latency(s, true);
2609 pa_sink_request_rewind(s, (size_t) -1);
2611 /* In flat volume mode we need to update the volume as
2613 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2616 case PA_SINK_MESSAGE_START_MOVE: {
2617 pa_sink_input *i = PA_SINK_INPUT(userdata);
2619 /* We don't support moving synchronized streams. */
2620 pa_assert(!i->sync_prev);
2621 pa_assert(!i->sync_next);
2622 pa_assert(!i->thread_info.sync_next);
2623 pa_assert(!i->thread_info.sync_prev);
2625 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2627 size_t sink_nbytes, total_nbytes;
2629 /* The old sink probably has some audio from this
2630 * stream in its buffer. We want to "take it back" as
2631 * much as possible and play it to the new sink. We
2632 * don't know at this point how much the old sink can
2633 * rewind. We have to pick something, and that
2634 * something is the full latency of the old sink here.
2635 * So we rewind the stream buffer by the sink latency
2636 * amount, which may be more than what we should
2637 * rewind. This can result in a chunk of audio being
2638 * played both to the old sink and the new sink.
2640 * FIXME: Fix this code so that we don't have to make
2641 * guesses about how much the sink will actually be
2642 * able to rewind. If someone comes up with a solution
2643 * for this, something to note is that the part of the
2644 * latency that the old sink couldn't rewind should
2645 * ideally be compensated after the stream has moved
2646 * to the new sink by adding silence. The new sink
2647 * most likely can't start playing the moved stream
2648 * immediately, and that gap should be removed from
2649 * the "compensation silence" (at least at the time of
2650 * writing this, the move finish code will actually
2651 * already take care of dropping the new sink's
2652 * unrewindable latency, so taking into account the
2653 * unrewindable latency of the old sink is the only
2656 * The render_memblockq contents are discarded,
2657 * because when the sink changes, the format of the
2658 * audio stored in the render_memblockq may change
2659 * too, making the stored audio invalid. FIXME:
2660 * However, the read and write indices are moved back
2661 * the same amount, so if they are not the same now,
2662 * they won't be the same after the rewind either. If
2663 * the write index of the render_memblockq is ahead of
2664 * the read index, then the render_memblockq will feed
2665 * the new sink some silence first, which it shouldn't
2666 * do. The write index should be flushed to be the
2667 * same as the read index. */
2669 /* Get the latency of the sink */
2670 usec = pa_sink_get_latency_within_thread(s, false);
2671 sink_nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2672 total_nbytes = sink_nbytes + pa_memblockq_get_length(i->thread_info.render_memblockq);
2674 if (total_nbytes > 0) {
2675 i->thread_info.rewrite_nbytes = i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, total_nbytes) : total_nbytes;
2676 i->thread_info.rewrite_flush = true;
2677 pa_sink_input_process_rewind(i, sink_nbytes);
2681 pa_sink_input_detach(i);
2683 /* Let's remove the sink input ...*/
2684 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2686 pa_sink_invalidate_requested_latency(s, true);
2688 pa_log_debug("Requesting rewind due to started move");
2689 pa_sink_request_rewind(s, (size_t) -1);
2691 /* In flat volume mode we need to update the volume as
2693 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2696 case PA_SINK_MESSAGE_FINISH_MOVE: {
2697 pa_sink_input *i = PA_SINK_INPUT(userdata);
2699 /* We don't support moving synchronized streams. */
2700 pa_assert(!i->sync_prev);
2701 pa_assert(!i->sync_next);
2702 pa_assert(!i->thread_info.sync_next);
2703 pa_assert(!i->thread_info.sync_prev);
2705 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2707 pa_sink_input_attach(i);
2709 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2713 /* In the ideal case the new sink would start playing
2714 * the stream immediately. That requires the sink to
2715 * be able to rewind all of its latency, which usually
2716 * isn't possible, so there will probably be some gap
2717 * before the moved stream becomes audible. We then
2718 * have two possibilities: 1) start playing the stream
2719 * from where it is now, or 2) drop the unrewindable
2720 * latency of the sink from the stream. With option 1
2721 * we won't lose any audio but the stream will have a
2722 * pause. With option 2 we may lose some audio but the
2723 * stream time will be somewhat in sync with the wall
2724 * clock. Lennart seems to have chosen option 2 (one
2725 * of the reasons might have been that option 1 is
2726 * actually much harder to implement), so we drop the
2727 * latency of the new sink from the moved stream and
2728 * hope that the sink will undo most of that in the
2731 /* Get the latency of the sink */
2732 usec = pa_sink_get_latency_within_thread(s, false);
2733 nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2736 pa_sink_input_drop(i, nbytes);
2738 pa_log_debug("Requesting rewind due to finished move");
2739 pa_sink_request_rewind(s, nbytes);
2742 /* Updating the requested sink latency has to be done
2743 * after the sink rewind request, not before, because
2744 * otherwise the sink may limit the rewind amount
2747 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2748 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2750 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2751 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2753 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2756 case PA_SINK_MESSAGE_SET_SHARED_VOLUME: {
2757 pa_sink *root_sink = pa_sink_get_master(s);
2759 if (PA_LIKELY(root_sink))
2760 set_shared_volume_within_thread(root_sink);
2765 case PA_SINK_MESSAGE_SET_VOLUME_SYNCED:
2767 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2769 pa_sink_volume_change_push(s);
2771 /* Fall through ... */
2773 case PA_SINK_MESSAGE_SET_VOLUME:
2775 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2776 s->thread_info.soft_volume = s->soft_volume;
2777 pa_sink_request_rewind(s, (size_t) -1);
2780 /* Fall through ... */
2782 case PA_SINK_MESSAGE_SYNC_VOLUMES:
2783 sync_input_volumes_within_thread(s);
2786 case PA_SINK_MESSAGE_GET_VOLUME:
2788 if ((s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume) {
2790 pa_sink_volume_change_flush(s);
2791 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2794 /* In case sink implementor reset SW volume. */
2795 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2796 s->thread_info.soft_volume = s->soft_volume;
2797 pa_sink_request_rewind(s, (size_t) -1);
2802 case PA_SINK_MESSAGE_SET_MUTE:
2804 if (s->thread_info.soft_muted != s->muted) {
2805 s->thread_info.soft_muted = s->muted;
2806 pa_sink_request_rewind(s, (size_t) -1);
2809 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->set_mute)
2814 case PA_SINK_MESSAGE_GET_MUTE:
2816 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->get_mute)
2817 return s->get_mute(s, userdata);
2821 case PA_SINK_MESSAGE_SET_STATE: {
2823 bool suspend_change =
2824 (s->thread_info.state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(PA_PTR_TO_UINT(userdata))) ||
2825 (PA_SINK_IS_OPENED(s->thread_info.state) && PA_PTR_TO_UINT(userdata) == PA_SINK_SUSPENDED);
2827 s->thread_info.state = PA_PTR_TO_UINT(userdata);
2829 if (s->thread_info.state == PA_SINK_SUSPENDED) {
2830 s->thread_info.rewind_nbytes = 0;
2831 s->thread_info.rewind_requested = false;
2834 if (suspend_change) {
2838 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
2839 if (i->suspend_within_thread)
2840 i->suspend_within_thread(i, s->thread_info.state == PA_SINK_SUSPENDED);
2846 case PA_SINK_MESSAGE_GET_REQUESTED_LATENCY: {
2848 pa_usec_t *usec = userdata;
2849 *usec = pa_sink_get_requested_latency_within_thread(s);
2851 /* Yes, that's right, the IO thread will see -1 when no
2852 * explicit requested latency is configured, the main
2853 * thread will see max_latency */
2854 if (*usec == (pa_usec_t) -1)
2855 *usec = s->thread_info.max_latency;
2860 case PA_SINK_MESSAGE_SET_LATENCY_RANGE: {
2861 pa_usec_t *r = userdata;
2863 pa_sink_set_latency_range_within_thread(s, r[0], r[1]);
2868 case PA_SINK_MESSAGE_GET_LATENCY_RANGE: {
2869 pa_usec_t *r = userdata;
2871 r[0] = s->thread_info.min_latency;
2872 r[1] = s->thread_info.max_latency;
2877 case PA_SINK_MESSAGE_GET_FIXED_LATENCY:
2879 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2882 case PA_SINK_MESSAGE_SET_FIXED_LATENCY:
2884 pa_sink_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2887 case PA_SINK_MESSAGE_GET_MAX_REWIND:
2889 *((size_t*) userdata) = s->thread_info.max_rewind;
2892 case PA_SINK_MESSAGE_GET_MAX_REQUEST:
2894 *((size_t*) userdata) = s->thread_info.max_request;
2897 case PA_SINK_MESSAGE_SET_MAX_REWIND:
2899 pa_sink_set_max_rewind_within_thread(s, (size_t) offset);
2902 case PA_SINK_MESSAGE_SET_MAX_REQUEST:
2904 pa_sink_set_max_request_within_thread(s, (size_t) offset);
2907 case PA_SINK_MESSAGE_SET_PORT:
2909 pa_assert(userdata);
2911 struct sink_message_set_port *msg_data = userdata;
2912 msg_data->ret = s->set_port(s, msg_data->port);
2916 case PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2917 /* This message is sent from IO-thread and handled in main thread. */
2918 pa_assert_ctl_context();
2920 /* Make sure we're not messing with main thread when no longer linked */
2921 if (!PA_SINK_IS_LINKED(s->state))
2924 pa_sink_get_volume(s, true);
2925 pa_sink_get_mute(s, true);
2928 case PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET:
2929 s->thread_info.port_latency_offset = offset;
2932 case PA_SINK_MESSAGE_GET_LATENCY:
2933 case PA_SINK_MESSAGE_MAX:
2940 /* Called from main thread */
2941 int pa_sink_suspend_all(pa_core *c, bool suspend, pa_suspend_cause_t cause) {
2946 pa_core_assert_ref(c);
2947 pa_assert_ctl_context();
2948 pa_assert(cause != 0);
2950 PA_IDXSET_FOREACH(sink, c->sinks, idx) {
2953 if ((r = pa_sink_suspend(sink, suspend, cause)) < 0)
2960 /* Called from IO thread */
2961 void pa_sink_detach_within_thread(pa_sink *s) {
2965 pa_sink_assert_ref(s);
2966 pa_sink_assert_io_context(s);
2967 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2969 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2970 pa_sink_input_detach(i);
2972 if (s->monitor_source)
2973 pa_source_detach_within_thread(s->monitor_source);
2976 /* Called from IO thread */
2977 void pa_sink_attach_within_thread(pa_sink *s) {
2981 pa_sink_assert_ref(s);
2982 pa_sink_assert_io_context(s);
2983 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2985 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2986 pa_sink_input_attach(i);
2988 if (s->monitor_source)
2989 pa_source_attach_within_thread(s->monitor_source);
2992 /* Called from IO thread */
2993 void pa_sink_request_rewind(pa_sink*s, size_t nbytes) {
2994 pa_sink_assert_ref(s);
2995 pa_sink_assert_io_context(s);
2996 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2998 if (nbytes == (size_t) -1)
2999 nbytes = s->thread_info.max_rewind;
3001 nbytes = PA_MIN(nbytes, s->thread_info.max_rewind);
3003 if (s->thread_info.rewind_requested &&
3004 nbytes <= s->thread_info.rewind_nbytes)
3007 s->thread_info.rewind_nbytes = nbytes;
3008 s->thread_info.rewind_requested = true;
3010 if (s->request_rewind)
3011 s->request_rewind(s);
3014 /* Called from IO thread */
3015 pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
3016 pa_usec_t result = (pa_usec_t) -1;
3019 pa_usec_t monitor_latency;
3021 pa_sink_assert_ref(s);
3022 pa_sink_assert_io_context(s);
3024 if (!(s->flags & PA_SINK_DYNAMIC_LATENCY))
3025 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
3027 if (s->thread_info.requested_latency_valid)
3028 return s->thread_info.requested_latency;
3030 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3031 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1 &&
3032 (result == (pa_usec_t) -1 || result > i->thread_info.requested_sink_latency))
3033 result = i->thread_info.requested_sink_latency;
3035 monitor_latency = pa_source_get_requested_latency_within_thread(s->monitor_source);
3037 if (monitor_latency != (pa_usec_t) -1 &&
3038 (result == (pa_usec_t) -1 || result > monitor_latency))
3039 result = monitor_latency;
3041 if (result != (pa_usec_t) -1)
3042 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
3044 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3045 /* Only cache if properly initialized */
3046 s->thread_info.requested_latency = result;
3047 s->thread_info.requested_latency_valid = true;
3053 /* Called from main thread */
3054 pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
3057 pa_sink_assert_ref(s);
3058 pa_assert_ctl_context();
3059 pa_assert(PA_SINK_IS_LINKED(s->state));
3061 if (s->state == PA_SINK_SUSPENDED)
3064 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
3069 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3070 void pa_sink_set_max_rewind_within_thread(pa_sink *s, size_t max_rewind) {
3074 pa_sink_assert_ref(s);
3075 pa_sink_assert_io_context(s);
3077 if (max_rewind == s->thread_info.max_rewind)
3080 s->thread_info.max_rewind = max_rewind;
3082 if (PA_SINK_IS_LINKED(s->thread_info.state))
3083 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3084 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
3086 if (s->monitor_source)
3087 pa_source_set_max_rewind_within_thread(s->monitor_source, s->thread_info.max_rewind);
3090 /* Called from main thread */
3091 void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind) {
3092 pa_sink_assert_ref(s);
3093 pa_assert_ctl_context();
3095 if (PA_SINK_IS_LINKED(s->state))
3096 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
3098 pa_sink_set_max_rewind_within_thread(s, max_rewind);
3101 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3102 void pa_sink_set_max_request_within_thread(pa_sink *s, size_t max_request) {
3105 pa_sink_assert_ref(s);
3106 pa_sink_assert_io_context(s);
3108 if (max_request == s->thread_info.max_request)
3111 s->thread_info.max_request = max_request;
3113 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3116 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3117 pa_sink_input_update_max_request(i, s->thread_info.max_request);
3121 /* Called from main thread */
3122 void pa_sink_set_max_request(pa_sink *s, size_t max_request) {
3123 pa_sink_assert_ref(s);
3124 pa_assert_ctl_context();
3126 if (PA_SINK_IS_LINKED(s->state))
3127 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REQUEST, NULL, max_request, NULL) == 0);
3129 pa_sink_set_max_request_within_thread(s, max_request);
3132 /* Called from IO thread */
3133 void pa_sink_invalidate_requested_latency(pa_sink *s, bool dynamic) {
3137 pa_sink_assert_ref(s);
3138 pa_sink_assert_io_context(s);
3140 if ((s->flags & PA_SINK_DYNAMIC_LATENCY))
3141 s->thread_info.requested_latency_valid = false;
3145 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3147 if (s->update_requested_latency)
3148 s->update_requested_latency(s);
3150 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3151 if (i->update_sink_requested_latency)
3152 i->update_sink_requested_latency(i);
3156 /* Called from main thread */
3157 void pa_sink_set_latency_range(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3158 pa_sink_assert_ref(s);
3159 pa_assert_ctl_context();
3161 /* min_latency == 0: no limit
3162 * min_latency anything else: specified limit
3164 * Similar for max_latency */
3166 if (min_latency < ABSOLUTE_MIN_LATENCY)
3167 min_latency = ABSOLUTE_MIN_LATENCY;
3169 if (max_latency <= 0 ||
3170 max_latency > ABSOLUTE_MAX_LATENCY)
3171 max_latency = ABSOLUTE_MAX_LATENCY;
3173 pa_assert(min_latency <= max_latency);
3175 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3176 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3177 max_latency == ABSOLUTE_MAX_LATENCY) ||
3178 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3180 if (PA_SINK_IS_LINKED(s->state)) {
3186 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
3188 pa_sink_set_latency_range_within_thread(s, min_latency, max_latency);
3191 /* Called from main thread */
3192 void pa_sink_get_latency_range(pa_sink *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
3193 pa_sink_assert_ref(s);
3194 pa_assert_ctl_context();
3195 pa_assert(min_latency);
3196 pa_assert(max_latency);
3198 if (PA_SINK_IS_LINKED(s->state)) {
3199 pa_usec_t r[2] = { 0, 0 };
3201 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
3203 *min_latency = r[0];
3204 *max_latency = r[1];
3206 *min_latency = s->thread_info.min_latency;
3207 *max_latency = s->thread_info.max_latency;
3211 /* Called from IO thread */
3212 void pa_sink_set_latency_range_within_thread(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3213 pa_sink_assert_ref(s);
3214 pa_sink_assert_io_context(s);
3216 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
3217 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
3218 pa_assert(min_latency <= max_latency);
3220 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3221 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3222 max_latency == ABSOLUTE_MAX_LATENCY) ||
3223 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3225 if (s->thread_info.min_latency == min_latency &&
3226 s->thread_info.max_latency == max_latency)
3229 s->thread_info.min_latency = min_latency;
3230 s->thread_info.max_latency = max_latency;
3232 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3236 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3237 if (i->update_sink_latency_range)
3238 i->update_sink_latency_range(i);
3241 pa_sink_invalidate_requested_latency(s, false);
3243 pa_source_set_latency_range_within_thread(s->monitor_source, min_latency, max_latency);
3246 /* Called from main thread */
3247 void pa_sink_set_fixed_latency(pa_sink *s, pa_usec_t latency) {
3248 pa_sink_assert_ref(s);
3249 pa_assert_ctl_context();
3251 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3252 pa_assert(latency == 0);
3256 if (latency < ABSOLUTE_MIN_LATENCY)
3257 latency = ABSOLUTE_MIN_LATENCY;
3259 if (latency > ABSOLUTE_MAX_LATENCY)
3260 latency = ABSOLUTE_MAX_LATENCY;
3262 if (PA_SINK_IS_LINKED(s->state))
3263 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
3265 s->thread_info.fixed_latency = latency;
3267 pa_source_set_fixed_latency(s->monitor_source, latency);
3270 /* Called from main thread */
3271 pa_usec_t pa_sink_get_fixed_latency(pa_sink *s) {
3274 pa_sink_assert_ref(s);
3275 pa_assert_ctl_context();
3277 if (s->flags & PA_SINK_DYNAMIC_LATENCY)
3280 if (PA_SINK_IS_LINKED(s->state))
3281 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
3283 latency = s->thread_info.fixed_latency;
3288 /* Called from IO thread */
3289 void pa_sink_set_fixed_latency_within_thread(pa_sink *s, pa_usec_t latency) {
3290 pa_sink_assert_ref(s);
3291 pa_sink_assert_io_context(s);
3293 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3294 pa_assert(latency == 0);
3295 s->thread_info.fixed_latency = 0;
3297 if (s->monitor_source)
3298 pa_source_set_fixed_latency_within_thread(s->monitor_source, 0);
3303 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
3304 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
3306 if (s->thread_info.fixed_latency == latency)
3309 s->thread_info.fixed_latency = latency;
3311 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3315 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3316 if (i->update_sink_fixed_latency)
3317 i->update_sink_fixed_latency(i);
3320 pa_sink_invalidate_requested_latency(s, false);
3322 pa_source_set_fixed_latency_within_thread(s->monitor_source, latency);
3325 /* Called from main context */
3326 void pa_sink_set_port_latency_offset(pa_sink *s, int64_t offset) {
3327 pa_sink_assert_ref(s);
3329 s->port_latency_offset = offset;
3331 if (PA_SINK_IS_LINKED(s->state))
3332 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET, NULL, offset, NULL) == 0);
3334 s->thread_info.port_latency_offset = offset;
3336 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_LATENCY_OFFSET_CHANGED], s);
3339 /* Called from main context */
3340 size_t pa_sink_get_max_rewind(pa_sink *s) {
3342 pa_assert_ctl_context();
3343 pa_sink_assert_ref(s);
3345 if (!PA_SINK_IS_LINKED(s->state))
3346 return s->thread_info.max_rewind;
3348 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
3353 /* Called from main context */
3354 size_t pa_sink_get_max_request(pa_sink *s) {
3356 pa_sink_assert_ref(s);
3357 pa_assert_ctl_context();
3359 if (!PA_SINK_IS_LINKED(s->state))
3360 return s->thread_info.max_request;
3362 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REQUEST, &r, 0, NULL) == 0);
3367 /* Called from main context */
3368 int pa_sink_set_port(pa_sink *s, const char *name, bool save) {
3369 pa_device_port *port;
3372 pa_sink_assert_ref(s);
3373 pa_assert_ctl_context();
3376 pa_log_debug("set_port() operation not implemented for sink %u \"%s\"", s->index, s->name);
3377 return -PA_ERR_NOTIMPLEMENTED;
3381 return -PA_ERR_NOENTITY;
3383 if (!(port = pa_hashmap_get(s->ports, name)))
3384 return -PA_ERR_NOENTITY;
3386 if (s->active_port == port) {
3387 s->save_port = s->save_port || save;
3391 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
3392 struct sink_message_set_port msg = { .port = port, .ret = 0 };
3393 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
3397 ret = s->set_port(s, port);
3400 return -PA_ERR_NOENTITY;
3402 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3404 pa_log_info("Changed port of sink %u \"%s\" to %s", s->index, s->name, port->name);
3406 s->active_port = port;
3407 s->save_port = save;
3409 pa_sink_set_port_latency_offset(s, s->active_port->latency_offset);
3411 /* The active port affects the default sink selection. */
3412 pa_core_update_default_sink(s->core);
3414 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_CHANGED], s);
3419 bool pa_device_init_icon(pa_proplist *p, bool is_sink) {
3420 const char *ff, *c, *t = NULL, *s = "", *profile, *bus;
3424 if (pa_proplist_contains(p, PA_PROP_DEVICE_ICON_NAME))
3427 if ((ff = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3429 if (pa_streq(ff, "microphone"))
3430 t = "audio-input-microphone";
3431 else if (pa_streq(ff, "webcam"))
3433 else if (pa_streq(ff, "computer"))
3435 else if (pa_streq(ff, "handset"))
3437 else if (pa_streq(ff, "portable"))
3438 t = "multimedia-player";
3439 else if (pa_streq(ff, "tv"))
3440 t = "video-display";
3443 * The following icons are not part of the icon naming spec,
3444 * because Rodney Dawes sucks as the maintainer of that spec.
3446 * http://lists.freedesktop.org/archives/xdg/2009-May/010397.html
3448 else if (pa_streq(ff, "headset"))
3449 t = "audio-headset";
3450 else if (pa_streq(ff, "headphone"))
3451 t = "audio-headphones";
3452 else if (pa_streq(ff, "speaker"))
3453 t = "audio-speakers";
3454 else if (pa_streq(ff, "hands-free"))
3455 t = "audio-handsfree";
3459 if ((c = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3460 if (pa_streq(c, "modem"))
3467 t = "audio-input-microphone";
3470 if ((profile = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3471 if (strstr(profile, "analog"))
3473 else if (strstr(profile, "iec958"))
3475 else if (strstr(profile, "hdmi"))
3479 bus = pa_proplist_gets(p, PA_PROP_DEVICE_BUS);
3481 pa_proplist_setf(p, PA_PROP_DEVICE_ICON_NAME, "%s%s%s%s", t, pa_strempty(s), bus ? "-" : "", pa_strempty(bus));
3486 bool pa_device_init_description(pa_proplist *p, pa_card *card) {
3487 const char *s, *d = NULL, *k;
3490 if (pa_proplist_contains(p, PA_PROP_DEVICE_DESCRIPTION))
3494 if ((s = pa_proplist_gets(card->proplist, PA_PROP_DEVICE_DESCRIPTION)))
3498 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3499 if (pa_streq(s, "internal"))
3500 d = _("Built-in Audio");
3503 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3504 if (pa_streq(s, "modem"))
3508 d = pa_proplist_gets(p, PA_PROP_DEVICE_PRODUCT_NAME);
3513 k = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_DESCRIPTION);
3516 pa_proplist_setf(p, PA_PROP_DEVICE_DESCRIPTION, "%s %s", d, k);
3518 pa_proplist_sets(p, PA_PROP_DEVICE_DESCRIPTION, d);
3523 bool pa_device_init_intended_roles(pa_proplist *p) {
3527 if (pa_proplist_contains(p, PA_PROP_DEVICE_INTENDED_ROLES))
3530 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3531 if (pa_streq(s, "handset") || pa_streq(s, "hands-free")
3532 || pa_streq(s, "headset")) {
3533 pa_proplist_sets(p, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
3540 unsigned pa_device_init_priority(pa_proplist *p) {
3542 unsigned priority = 0;
3546 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS))) {
3548 if (pa_streq(s, "sound"))
3550 else if (!pa_streq(s, "modem"))
3554 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3556 if (pa_streq(s, "headphone"))
3558 else if (pa_streq(s, "hifi"))
3560 else if (pa_streq(s, "speaker"))
3562 else if (pa_streq(s, "portable"))
3566 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_BUS))) {
3568 if (pa_streq(s, "bluetooth"))
3570 else if (pa_streq(s, "usb"))
3572 else if (pa_streq(s, "pci"))
3576 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3578 if (pa_startswith(s, "analog-"))
3580 else if (pa_startswith(s, "iec958-"))
3587 PA_STATIC_FLIST_DECLARE(pa_sink_volume_change, 0, pa_xfree);
3589 /* Called from the IO thread. */
3590 static pa_sink_volume_change *pa_sink_volume_change_new(pa_sink *s) {
3591 pa_sink_volume_change *c;
3592 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_sink_volume_change))))
3593 c = pa_xnew(pa_sink_volume_change, 1);
3595 PA_LLIST_INIT(pa_sink_volume_change, c);
3597 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
3601 /* Called from the IO thread. */
3602 static void pa_sink_volume_change_free(pa_sink_volume_change *c) {
3604 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_sink_volume_change), c) < 0)
3608 /* Called from the IO thread. */
3609 void pa_sink_volume_change_push(pa_sink *s) {
3610 pa_sink_volume_change *c = NULL;
3611 pa_sink_volume_change *nc = NULL;
3612 pa_sink_volume_change *pc = NULL;
3613 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
3615 const char *direction = NULL;
3618 nc = pa_sink_volume_change_new(s);
3620 /* NOTE: There is already more different volumes in pa_sink that I can remember.
3621 * Adding one more volume for HW would get us rid of this, but I am trying
3622 * to survive with the ones we already have. */
3623 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
3625 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
3626 pa_log_debug("Volume not changing");
3627 pa_sink_volume_change_free(nc);
3631 nc->at = pa_sink_get_latency_within_thread(s, false);
3632 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3634 if (s->thread_info.volume_changes_tail) {
3635 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
3636 /* If volume is going up let's do it a bit late. If it is going
3637 * down let's do it a bit early. */
3638 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
3639 if (nc->at + safety_margin > c->at) {
3640 nc->at += safety_margin;
3645 else if (nc->at - safety_margin > c->at) {
3646 nc->at -= safety_margin;
3654 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
3655 nc->at += safety_margin;
3658 nc->at -= safety_margin;
3661 PA_LLIST_PREPEND(pa_sink_volume_change, s->thread_info.volume_changes, nc);
3664 PA_LLIST_INSERT_AFTER(pa_sink_volume_change, s->thread_info.volume_changes, c, nc);
3667 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
3669 /* We can ignore volume events that came earlier but should happen later than this. */
3670 PA_LLIST_FOREACH_SAFE(c, pc, nc->next) {
3671 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
3672 pa_sink_volume_change_free(c);
3675 s->thread_info.volume_changes_tail = nc;
3678 /* Called from the IO thread. */
3679 static void pa_sink_volume_change_flush(pa_sink *s) {
3680 pa_sink_volume_change *c = s->thread_info.volume_changes;
3682 s->thread_info.volume_changes = NULL;
3683 s->thread_info.volume_changes_tail = NULL;
3685 pa_sink_volume_change *next = c->next;
3686 pa_sink_volume_change_free(c);
3691 /* Called from the IO thread. */
3692 bool pa_sink_volume_change_apply(pa_sink *s, pa_usec_t *usec_to_next) {
3698 if (!s->thread_info.volume_changes || !PA_SINK_IS_LINKED(s->state)) {
3704 pa_assert(s->write_volume);
3706 now = pa_rtclock_now();
3708 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
3709 pa_sink_volume_change *c = s->thread_info.volume_changes;
3710 PA_LLIST_REMOVE(pa_sink_volume_change, s->thread_info.volume_changes, c);
3711 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
3712 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
3714 s->thread_info.current_hw_volume = c->hw_volume;
3715 pa_sink_volume_change_free(c);
3721 if (s->thread_info.volume_changes) {
3723 *usec_to_next = s->thread_info.volume_changes->at - now;
3724 if (pa_log_ratelimit(PA_LOG_DEBUG))
3725 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
3730 s->thread_info.volume_changes_tail = NULL;
3735 /* Called from the IO thread. */
3736 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes) {
3737 /* All the queued volume events later than current latency are shifted to happen earlier. */
3738 pa_sink_volume_change *c;
3739 pa_volume_t prev_vol = pa_cvolume_avg(&s->thread_info.current_hw_volume);
3740 pa_usec_t rewound = pa_bytes_to_usec(nbytes, &s->sample_spec);
3741 pa_usec_t limit = pa_sink_get_latency_within_thread(s, false);
3743 pa_log_debug("latency = %lld", (long long) limit);
3744 limit += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3746 PA_LLIST_FOREACH(c, s->thread_info.volume_changes) {
3747 pa_usec_t modified_limit = limit;
3748 if (prev_vol > pa_cvolume_avg(&c->hw_volume))
3749 modified_limit -= s->thread_info.volume_change_safety_margin;
3751 modified_limit += s->thread_info.volume_change_safety_margin;
3752 if (c->at > modified_limit) {
3754 if (c->at < modified_limit)
3755 c->at = modified_limit;
3757 prev_vol = pa_cvolume_avg(&c->hw_volume);
3759 pa_sink_volume_change_apply(s, NULL);
3762 /* Called from the main thread */
3763 /* Gets the list of formats supported by the sink. The members and idxset must
3764 * be freed by the caller. */
3765 pa_idxset* pa_sink_get_formats(pa_sink *s) {
3770 if (s->get_formats) {
3771 /* Sink supports format query, all is good */
3772 ret = s->get_formats(s);
3774 /* Sink doesn't support format query, so assume it does PCM */
3775 pa_format_info *f = pa_format_info_new();
3776 f->encoding = PA_ENCODING_PCM;
3778 ret = pa_idxset_new(NULL, NULL);
3779 pa_idxset_put(ret, f, NULL);
3785 /* Called from the main thread */
3786 /* Allows an external source to set what formats a sink supports if the sink
3787 * permits this. The function makes a copy of the formats on success. */
3788 bool pa_sink_set_formats(pa_sink *s, pa_idxset *formats) {
3793 /* Sink supports setting formats -- let's give it a shot */
3794 return s->set_formats(s, formats);
3796 /* Sink doesn't support setting this -- bail out */
3800 /* Called from the main thread */
3801 /* Checks if the sink can accept this format */
3802 bool pa_sink_check_format(pa_sink *s, pa_format_info *f) {
3803 pa_idxset *formats = NULL;
3809 formats = pa_sink_get_formats(s);
3812 pa_format_info *finfo_device;
3815 PA_IDXSET_FOREACH(finfo_device, formats, i) {
3816 if (pa_format_info_is_compatible(finfo_device, f)) {
3822 pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free);
3828 /* Called from the main thread */
3829 /* Calculates the intersection between formats supported by the sink and
3830 * in_formats, and returns these, in the order of the sink's formats. */
3831 pa_idxset* pa_sink_check_formats(pa_sink *s, pa_idxset *in_formats) {
3832 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *sink_formats = NULL;
3833 pa_format_info *f_sink, *f_in;
3838 if (!in_formats || pa_idxset_isempty(in_formats))
3841 sink_formats = pa_sink_get_formats(s);
3843 PA_IDXSET_FOREACH(f_sink, sink_formats, i) {
3844 PA_IDXSET_FOREACH(f_in, in_formats, j) {
3845 if (pa_format_info_is_compatible(f_sink, f_in))
3846 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
3852 pa_idxset_free(sink_formats, (pa_free_cb_t) pa_format_info_free);
3857 /* Called from the main thread. */
3858 void pa_sink_set_reference_volume_direct(pa_sink *s, const pa_cvolume *volume) {
3859 pa_cvolume old_volume;
3860 char old_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3861 char new_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3866 old_volume = s->reference_volume;
3868 if (pa_cvolume_equal(volume, &old_volume))
3871 s->reference_volume = *volume;
3872 pa_log_debug("The reference volume of sink %s changed from %s to %s.", s->name,
3873 pa_cvolume_snprint_verbose(old_volume_str, sizeof(old_volume_str), &old_volume, &s->channel_map,
3874 s->flags & PA_SINK_DECIBEL_VOLUME),
3875 pa_cvolume_snprint_verbose(new_volume_str, sizeof(new_volume_str), volume, &s->channel_map,
3876 s->flags & PA_SINK_DECIBEL_VOLUME));
3878 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3879 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_VOLUME_CHANGED], s);