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->update_rate = 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_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
346 s->thread_info.volume_change_safety_margin = core->deferred_volume_safety_margin_usec;
347 s->thread_info.volume_change_extra_delay = core->deferred_volume_extra_delay_usec;
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);
432 if (state != PA_SINK_UNLINKED) { /* if we enter UNLINKED state pa_sink_unlink() will fire the appropriate events */
433 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], s);
434 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
437 if (suspend_change) {
441 /* We're suspending or resuming, tell everyone about it */
443 PA_IDXSET_FOREACH(i, s->inputs, idx)
444 if (s->state == PA_SINK_SUSPENDED &&
445 (i->flags & PA_SINK_INPUT_KILL_ON_SUSPEND))
446 pa_sink_input_kill(i);
448 i->suspend(i, state == PA_SINK_SUSPENDED);
450 if (s->monitor_source)
451 pa_source_sync_suspend(s->monitor_source);
457 void pa_sink_set_get_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
463 void pa_sink_set_set_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
464 pa_sink_flags_t flags;
467 pa_assert(!s->write_volume || cb);
471 /* Save the current flags so we can tell if they've changed */
475 /* The sink implementor is responsible for setting decibel volume support */
476 s->flags |= PA_SINK_HW_VOLUME_CTRL;
478 s->flags &= ~PA_SINK_HW_VOLUME_CTRL;
479 /* See note below in pa_sink_put() about volume sharing and decibel volumes */
480 pa_sink_enable_decibel_volume(s, !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
483 /* If the flags have changed after init, let any clients know via a change event */
484 if (s->state != PA_SINK_INIT && flags != s->flags)
485 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
488 void pa_sink_set_write_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
489 pa_sink_flags_t flags;
492 pa_assert(!cb || s->set_volume);
494 s->write_volume = cb;
496 /* Save the current flags so we can tell if they've changed */
500 s->flags |= PA_SINK_DEFERRED_VOLUME;
502 s->flags &= ~PA_SINK_DEFERRED_VOLUME;
504 /* If the flags have changed after init, let any clients know via a change event */
505 if (s->state != PA_SINK_INIT && flags != s->flags)
506 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
509 void pa_sink_set_get_mute_callback(pa_sink *s, pa_sink_get_mute_cb_t cb) {
515 void pa_sink_set_set_mute_callback(pa_sink *s, pa_sink_cb_t cb) {
516 pa_sink_flags_t flags;
522 /* Save the current flags so we can tell if they've changed */
526 s->flags |= PA_SINK_HW_MUTE_CTRL;
528 s->flags &= ~PA_SINK_HW_MUTE_CTRL;
530 /* If the flags have changed after init, let any clients know via a change event */
531 if (s->state != PA_SINK_INIT && flags != s->flags)
532 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
535 static void enable_flat_volume(pa_sink *s, bool enable) {
536 pa_sink_flags_t flags;
540 /* Always follow the overall user preference here */
541 enable = enable && s->core->flat_volumes;
543 /* Save the current flags so we can tell if they've changed */
547 s->flags |= PA_SINK_FLAT_VOLUME;
549 s->flags &= ~PA_SINK_FLAT_VOLUME;
551 /* If the flags have changed after init, let any clients know via a change event */
552 if (s->state != PA_SINK_INIT && flags != s->flags)
553 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
556 void pa_sink_enable_decibel_volume(pa_sink *s, bool enable) {
557 pa_sink_flags_t flags;
561 /* Save the current flags so we can tell if they've changed */
565 s->flags |= PA_SINK_DECIBEL_VOLUME;
566 enable_flat_volume(s, true);
568 s->flags &= ~PA_SINK_DECIBEL_VOLUME;
569 enable_flat_volume(s, false);
572 /* If the flags have changed after init, let any clients know via a change event */
573 if (s->state != PA_SINK_INIT && flags != s->flags)
574 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
577 /* Called from main context */
578 void pa_sink_put(pa_sink* s) {
579 pa_sink_assert_ref(s);
580 pa_assert_ctl_context();
582 pa_assert(s->state == PA_SINK_INIT);
583 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || pa_sink_is_filter(s));
585 /* The following fields must be initialized properly when calling _put() */
586 pa_assert(s->asyncmsgq);
587 pa_assert(s->thread_info.min_latency <= s->thread_info.max_latency);
589 /* Generally, flags should be initialized via pa_sink_new(). As a
590 * special exception we allow some volume related flags to be set
591 * between _new() and _put() by the callback setter functions above.
593 * Thus we implement a couple safeguards here which ensure the above
594 * setters were used (or at least the implementor made manual changes
595 * in a compatible way).
597 * Note: All of these flags set here can change over the life time
599 pa_assert(!(s->flags & PA_SINK_HW_VOLUME_CTRL) || s->set_volume);
600 pa_assert(!(s->flags & PA_SINK_DEFERRED_VOLUME) || s->write_volume);
601 pa_assert(!(s->flags & PA_SINK_HW_MUTE_CTRL) || s->set_mute);
603 /* XXX: Currently decibel volume is disabled for all sinks that use volume
604 * sharing. When the master sink supports decibel volume, it would be good
605 * to have the flag also in the filter sink, but currently we don't do that
606 * so that the flags of the filter sink never change when it's moved from
607 * a master sink to another. One solution for this problem would be to
608 * remove user-visible volume altogether from filter sinks when volume
609 * sharing is used, but the current approach was easier to implement... */
610 /* We always support decibel volumes in software, otherwise we leave it to
611 * the sink implementor to set this flag as needed.
613 * Note: This flag can also change over the life time of the sink. */
614 if (!(s->flags & PA_SINK_HW_VOLUME_CTRL) && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
615 pa_sink_enable_decibel_volume(s, true);
616 s->soft_volume = s->reference_volume;
619 /* If the sink implementor support DB volumes by itself, we should always
620 * try and enable flat volumes too */
621 if ((s->flags & PA_SINK_DECIBEL_VOLUME))
622 enable_flat_volume(s, true);
624 if (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) {
625 pa_sink *root_sink = pa_sink_get_master(s);
627 pa_assert(root_sink);
629 s->reference_volume = root_sink->reference_volume;
630 pa_cvolume_remap(&s->reference_volume, &root_sink->channel_map, &s->channel_map);
632 s->real_volume = root_sink->real_volume;
633 pa_cvolume_remap(&s->real_volume, &root_sink->channel_map, &s->channel_map);
635 /* We assume that if the sink implementor changed the default
636 * volume he did so in real_volume, because that is the usual
637 * place where he is supposed to place his changes. */
638 s->reference_volume = s->real_volume;
640 s->thread_info.soft_volume = s->soft_volume;
641 s->thread_info.soft_muted = s->muted;
642 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
644 pa_assert((s->flags & PA_SINK_HW_VOLUME_CTRL)
645 || (s->base_volume == PA_VOLUME_NORM
646 && ((s->flags & PA_SINK_DECIBEL_VOLUME || (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)))));
647 pa_assert(!(s->flags & PA_SINK_DECIBEL_VOLUME) || s->n_volume_steps == PA_VOLUME_NORM+1);
648 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->thread_info.fixed_latency == 0));
649 pa_assert(!(s->flags & PA_SINK_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_LATENCY));
650 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_DYNAMIC_LATENCY));
652 pa_assert(s->monitor_source->thread_info.fixed_latency == s->thread_info.fixed_latency);
653 pa_assert(s->monitor_source->thread_info.min_latency == s->thread_info.min_latency);
654 pa_assert(s->monitor_source->thread_info.max_latency == s->thread_info.max_latency);
656 if (s->suspend_cause)
657 pa_assert_se(sink_set_state(s, PA_SINK_SUSPENDED) == 0);
659 pa_assert_se(sink_set_state(s, PA_SINK_IDLE) == 0);
661 pa_source_put(s->monitor_source);
663 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_NEW, s->index);
664 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PUT], s);
667 /* Called from main context */
668 void pa_sink_unlink(pa_sink* s) {
670 pa_sink_input *i, PA_UNUSED *j = NULL;
672 pa_sink_assert_ref(s);
673 pa_assert_ctl_context();
675 /* Please note that pa_sink_unlink() does more than simply
676 * reversing pa_sink_put(). It also undoes the registrations
677 * already done in pa_sink_new()! */
679 if (s->unlink_requested)
682 s->unlink_requested = true;
684 linked = PA_SINK_IS_LINKED(s->state);
687 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK], s);
689 if (s->state != PA_SINK_UNLINKED)
690 pa_namereg_unregister(s->core, s->name);
691 pa_idxset_remove_by_data(s->core->sinks, s, NULL);
694 pa_idxset_remove_by_data(s->card->sinks, s, NULL);
696 while ((i = pa_idxset_first(s->inputs, NULL))) {
698 pa_sink_input_kill(i);
703 sink_set_state(s, PA_SINK_UNLINKED);
705 s->state = PA_SINK_UNLINKED;
709 if (s->monitor_source)
710 pa_source_unlink(s->monitor_source);
713 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
714 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], s);
718 /* Called from main context */
719 static void sink_free(pa_object *o) {
720 pa_sink *s = PA_SINK(o);
723 pa_assert_ctl_context();
724 pa_assert(pa_sink_refcnt(s) == 0);
725 pa_assert(!PA_SINK_IS_LINKED(s->state));
727 pa_log_info("Freeing sink %u \"%s\"", s->index, s->name);
729 pa_sink_volume_change_flush(s);
731 if (s->monitor_source) {
732 pa_source_unref(s->monitor_source);
733 s->monitor_source = NULL;
736 pa_idxset_free(s->inputs, NULL);
737 pa_hashmap_free(s->thread_info.inputs);
739 if (s->silence.memblock)
740 pa_memblock_unref(s->silence.memblock);
746 pa_proplist_free(s->proplist);
749 pa_hashmap_free(s->ports);
754 /* Called from main context, and not while the IO thread is active, please */
755 void pa_sink_set_asyncmsgq(pa_sink *s, pa_asyncmsgq *q) {
756 pa_sink_assert_ref(s);
757 pa_assert_ctl_context();
761 if (s->monitor_source)
762 pa_source_set_asyncmsgq(s->monitor_source, q);
765 /* Called from main context, and not while the IO thread is active, please */
766 void pa_sink_update_flags(pa_sink *s, pa_sink_flags_t mask, pa_sink_flags_t value) {
767 pa_sink_flags_t old_flags;
768 pa_sink_input *input;
771 pa_sink_assert_ref(s);
772 pa_assert_ctl_context();
774 /* For now, allow only a minimal set of flags to be changed. */
775 pa_assert((mask & ~(PA_SINK_DYNAMIC_LATENCY|PA_SINK_LATENCY)) == 0);
777 old_flags = s->flags;
778 s->flags = (s->flags & ~mask) | (value & mask);
780 if (s->flags == old_flags)
783 if ((s->flags & PA_SINK_LATENCY) != (old_flags & PA_SINK_LATENCY))
784 pa_log_debug("Sink %s: LATENCY flag %s.", s->name, (s->flags & PA_SINK_LATENCY) ? "enabled" : "disabled");
786 if ((s->flags & PA_SINK_DYNAMIC_LATENCY) != (old_flags & PA_SINK_DYNAMIC_LATENCY))
787 pa_log_debug("Sink %s: DYNAMIC_LATENCY flag %s.",
788 s->name, (s->flags & PA_SINK_DYNAMIC_LATENCY) ? "enabled" : "disabled");
790 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
791 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_FLAGS_CHANGED], s);
793 if (s->monitor_source)
794 pa_source_update_flags(s->monitor_source,
795 ((mask & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
796 ((mask & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0),
797 ((value & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
798 ((value & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
800 PA_IDXSET_FOREACH(input, s->inputs, idx) {
801 if (input->origin_sink)
802 pa_sink_update_flags(input->origin_sink, mask, value);
806 /* Called from IO context, or before _put() from main context */
807 void pa_sink_set_rtpoll(pa_sink *s, pa_rtpoll *p) {
808 pa_sink_assert_ref(s);
809 pa_sink_assert_io_context(s);
811 s->thread_info.rtpoll = p;
813 if (s->monitor_source)
814 pa_source_set_rtpoll(s->monitor_source, p);
817 /* Called from main context */
818 int pa_sink_update_status(pa_sink*s) {
819 pa_sink_assert_ref(s);
820 pa_assert_ctl_context();
821 pa_assert(PA_SINK_IS_LINKED(s->state));
823 if (s->state == PA_SINK_SUSPENDED)
826 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
829 /* Called from any context - must be threadsafe */
830 void pa_sink_set_mixer_dirty(pa_sink *s, bool is_dirty) {
831 pa_atomic_store(&s->mixer_dirty, is_dirty ? 1 : 0);
834 /* Called from main context */
835 int pa_sink_suspend(pa_sink *s, bool suspend, pa_suspend_cause_t cause) {
836 pa_sink_assert_ref(s);
837 pa_assert_ctl_context();
838 pa_assert(PA_SINK_IS_LINKED(s->state));
839 pa_assert(cause != 0);
842 s->suspend_cause |= cause;
843 s->monitor_source->suspend_cause |= cause;
845 s->suspend_cause &= ~cause;
846 s->monitor_source->suspend_cause &= ~cause;
849 if (!(s->suspend_cause & PA_SUSPEND_SESSION) && (pa_atomic_load(&s->mixer_dirty) != 0)) {
850 /* This might look racy but isn't: If somebody sets mixer_dirty exactly here,
851 it'll be handled just fine. */
852 pa_sink_set_mixer_dirty(s, false);
853 pa_log_debug("Mixer is now accessible. Updating alsa mixer settings.");
854 if (s->active_port && s->set_port) {
855 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
856 struct sink_message_set_port msg = { .port = s->active_port, .ret = 0 };
857 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
860 s->set_port(s, s->active_port);
870 if ((pa_sink_get_state(s) == PA_SINK_SUSPENDED) == !!s->suspend_cause)
873 pa_log_debug("Suspend cause of sink %s is 0x%04x, %s", s->name, s->suspend_cause, s->suspend_cause ? "suspending" : "resuming");
875 if (s->suspend_cause)
876 return sink_set_state(s, PA_SINK_SUSPENDED);
878 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
881 /* Called from main context */
882 pa_queue *pa_sink_move_all_start(pa_sink *s, pa_queue *q) {
883 pa_sink_input *i, *n;
886 pa_sink_assert_ref(s);
887 pa_assert_ctl_context();
888 pa_assert(PA_SINK_IS_LINKED(s->state));
893 for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = n) {
894 n = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx));
896 pa_sink_input_ref(i);
898 if (pa_sink_input_start_move(i) >= 0)
901 pa_sink_input_unref(i);
907 /* Called from main context */
908 void pa_sink_move_all_finish(pa_sink *s, pa_queue *q, bool save) {
911 pa_sink_assert_ref(s);
912 pa_assert_ctl_context();
913 pa_assert(PA_SINK_IS_LINKED(s->state));
916 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
917 if (pa_sink_input_finish_move(i, s, save) < 0)
918 pa_sink_input_fail_move(i);
920 pa_sink_input_unref(i);
923 pa_queue_free(q, NULL);
926 /* Called from main context */
927 void pa_sink_move_all_fail(pa_queue *q) {
930 pa_assert_ctl_context();
933 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
934 pa_sink_input_fail_move(i);
935 pa_sink_input_unref(i);
938 pa_queue_free(q, NULL);
941 /* Called from IO thread context */
942 size_t pa_sink_process_input_underruns(pa_sink *s, size_t left_to_play) {
947 pa_sink_assert_ref(s);
948 pa_sink_assert_io_context(s);
950 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
951 size_t uf = i->thread_info.underrun_for_sink;
953 /* Propagate down the filter tree */
954 if (i->origin_sink) {
955 size_t filter_result, left_to_play_origin;
957 /* The recursive call works in the origin sink domain ... */
958 left_to_play_origin = pa_convert_size(left_to_play, &i->sink->sample_spec, &i->origin_sink->sample_spec);
960 /* .. and returns the time to sleep before waking up. We need the
961 * underrun duration for comparisons, so we undo the subtraction on
962 * the return value... */
963 filter_result = left_to_play_origin - pa_sink_process_input_underruns(i->origin_sink, left_to_play_origin);
965 /* ... and convert it back to the master sink domain */
966 filter_result = pa_convert_size(filter_result, &i->origin_sink->sample_spec, &i->sink->sample_spec);
968 /* Remember the longest underrun so far */
969 if (filter_result > result)
970 result = filter_result;
974 /* No underrun here, move on */
976 } else if (uf >= left_to_play) {
977 /* The sink has possibly consumed all the data the sink input provided */
978 pa_sink_input_process_underrun(i);
979 } else if (uf > result) {
980 /* Remember the longest underrun so far */
986 pa_log_debug("%s: Found underrun %ld bytes ago (%ld bytes ahead in playback buffer)", s->name,
987 (long) result, (long) left_to_play - result);
988 return left_to_play - result;
991 /* Called from IO thread context */
992 void pa_sink_process_rewind(pa_sink *s, size_t nbytes) {
996 pa_sink_assert_ref(s);
997 pa_sink_assert_io_context(s);
998 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1000 /* If nobody requested this and this is actually no real rewind
1001 * then we can short cut this. Please note that this means that
1002 * not all rewind requests triggered upstream will always be
1003 * translated in actual requests! */
1004 if (!s->thread_info.rewind_requested && nbytes <= 0)
1007 s->thread_info.rewind_nbytes = 0;
1008 s->thread_info.rewind_requested = false;
1011 pa_log_debug("Processing rewind...");
1012 if (s->flags & PA_SINK_DEFERRED_VOLUME)
1013 pa_sink_volume_change_rewind(s, nbytes);
1016 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1017 pa_sink_input_assert_ref(i);
1018 pa_sink_input_process_rewind(i, nbytes);
1022 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1023 pa_source_process_rewind(s->monitor_source, nbytes);
1027 /* Called from IO thread context */
1028 static unsigned fill_mix_info(pa_sink *s, size_t *length, pa_mix_info *info, unsigned maxinfo) {
1032 size_t mixlength = *length;
1034 pa_sink_assert_ref(s);
1035 pa_sink_assert_io_context(s);
1038 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)) && maxinfo > 0) {
1039 pa_sink_input_assert_ref(i);
1041 pa_sink_input_peek(i, *length, &info->chunk, &info->volume);
1043 if (mixlength == 0 || info->chunk.length < mixlength)
1044 mixlength = info->chunk.length;
1046 if (pa_memblock_is_silence(info->chunk.memblock)) {
1047 pa_memblock_unref(info->chunk.memblock);
1051 info->userdata = pa_sink_input_ref(i);
1053 pa_assert(info->chunk.memblock);
1054 pa_assert(info->chunk.length > 0);
1062 *length = mixlength;
1067 /* Called from IO thread context */
1068 static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned n, pa_memchunk *result) {
1072 unsigned n_unreffed = 0;
1074 pa_sink_assert_ref(s);
1075 pa_sink_assert_io_context(s);
1077 pa_assert(result->memblock);
1078 pa_assert(result->length > 0);
1080 /* We optimize for the case where the order of the inputs has not changed */
1082 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1084 pa_mix_info* m = NULL;
1086 pa_sink_input_assert_ref(i);
1088 /* Let's try to find the matching entry info the pa_mix_info array */
1089 for (j = 0; j < n; j ++) {
1091 if (info[p].userdata == i) {
1101 /* Drop read data */
1102 pa_sink_input_drop(i, result->length);
1104 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state)) {
1106 if (pa_hashmap_size(i->thread_info.direct_outputs) > 0) {
1107 void *ostate = NULL;
1108 pa_source_output *o;
1111 if (m && m->chunk.memblock) {
1113 pa_memblock_ref(c.memblock);
1114 pa_assert(result->length <= c.length);
1115 c.length = result->length;
1117 pa_memchunk_make_writable(&c, 0);
1118 pa_volume_memchunk(&c, &s->sample_spec, &m->volume);
1121 pa_memblock_ref(c.memblock);
1122 pa_assert(result->length <= c.length);
1123 c.length = result->length;
1126 while ((o = pa_hashmap_iterate(i->thread_info.direct_outputs, &ostate, NULL))) {
1127 pa_source_output_assert_ref(o);
1128 pa_assert(o->direct_on_input == i);
1129 pa_source_post_direct(s->monitor_source, o, &c);
1132 pa_memblock_unref(c.memblock);
1137 if (m->chunk.memblock) {
1138 pa_memblock_unref(m->chunk.memblock);
1139 pa_memchunk_reset(&m->chunk);
1142 pa_sink_input_unref(m->userdata);
1149 /* Now drop references to entries that are included in the
1150 * pa_mix_info array but don't exist anymore */
1152 if (n_unreffed < n) {
1153 for (; n > 0; info++, n--) {
1155 pa_sink_input_unref(info->userdata);
1156 if (info->chunk.memblock)
1157 pa_memblock_unref(info->chunk.memblock);
1161 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1162 pa_source_post(s->monitor_source, result);
1165 /* Called from IO thread context */
1166 void pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) {
1167 pa_mix_info info[MAX_MIX_CHANNELS];
1169 size_t block_size_max;
1171 pa_sink_assert_ref(s);
1172 pa_sink_assert_io_context(s);
1173 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1174 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1177 pa_assert(!s->thread_info.rewind_requested);
1178 pa_assert(s->thread_info.rewind_nbytes == 0);
1180 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1181 result->memblock = pa_memblock_ref(s->silence.memblock);
1182 result->index = s->silence.index;
1183 result->length = PA_MIN(s->silence.length, length);
1190 length = pa_frame_align(MIX_BUFFER_LENGTH, &s->sample_spec);
1192 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1193 if (length > block_size_max)
1194 length = pa_frame_align(block_size_max, &s->sample_spec);
1196 pa_assert(length > 0);
1198 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1202 *result = s->silence;
1203 pa_memblock_ref(result->memblock);
1205 if (result->length > length)
1206 result->length = length;
1208 } else if (n == 1) {
1211 *result = info[0].chunk;
1212 pa_memblock_ref(result->memblock);
1214 if (result->length > length)
1215 result->length = length;
1217 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1219 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume)) {
1220 pa_memblock_unref(result->memblock);
1221 pa_silence_memchunk_get(&s->core->silence_cache,
1226 } else if (!pa_cvolume_is_norm(&volume)) {
1227 pa_memchunk_make_writable(result, 0);
1228 pa_volume_memchunk(result, &s->sample_spec, &volume);
1232 result->memblock = pa_memblock_new(s->core->mempool, length);
1234 ptr = pa_memblock_acquire(result->memblock);
1235 result->length = pa_mix(info, n,
1238 &s->thread_info.soft_volume,
1239 s->thread_info.soft_muted);
1240 pa_memblock_release(result->memblock);
1245 inputs_drop(s, info, n, result);
1250 /* Called from IO thread context */
1251 void pa_sink_render_into(pa_sink*s, pa_memchunk *target) {
1252 pa_mix_info info[MAX_MIX_CHANNELS];
1254 size_t length, block_size_max;
1256 pa_sink_assert_ref(s);
1257 pa_sink_assert_io_context(s);
1258 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1260 pa_assert(target->memblock);
1261 pa_assert(target->length > 0);
1262 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1264 pa_assert(!s->thread_info.rewind_requested);
1265 pa_assert(s->thread_info.rewind_nbytes == 0);
1267 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1268 pa_silence_memchunk(target, &s->sample_spec);
1274 length = target->length;
1275 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1276 if (length > block_size_max)
1277 length = pa_frame_align(block_size_max, &s->sample_spec);
1279 pa_assert(length > 0);
1281 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1284 if (target->length > length)
1285 target->length = length;
1287 pa_silence_memchunk(target, &s->sample_spec);
1288 } else if (n == 1) {
1291 if (target->length > length)
1292 target->length = length;
1294 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1296 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume))
1297 pa_silence_memchunk(target, &s->sample_spec);
1301 vchunk = info[0].chunk;
1302 pa_memblock_ref(vchunk.memblock);
1304 if (vchunk.length > length)
1305 vchunk.length = length;
1307 if (!pa_cvolume_is_norm(&volume)) {
1308 pa_memchunk_make_writable(&vchunk, 0);
1309 pa_volume_memchunk(&vchunk, &s->sample_spec, &volume);
1312 pa_memchunk_memcpy(target, &vchunk);
1313 pa_memblock_unref(vchunk.memblock);
1319 ptr = pa_memblock_acquire(target->memblock);
1321 target->length = pa_mix(info, n,
1322 (uint8_t*) ptr + target->index, length,
1324 &s->thread_info.soft_volume,
1325 s->thread_info.soft_muted);
1327 pa_memblock_release(target->memblock);
1330 inputs_drop(s, info, n, target);
1335 /* Called from IO thread context */
1336 void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
1340 pa_sink_assert_ref(s);
1341 pa_sink_assert_io_context(s);
1342 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1344 pa_assert(target->memblock);
1345 pa_assert(target->length > 0);
1346 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1348 pa_assert(!s->thread_info.rewind_requested);
1349 pa_assert(s->thread_info.rewind_nbytes == 0);
1351 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1352 pa_silence_memchunk(target, &s->sample_spec);
1365 pa_sink_render_into(s, &chunk);
1374 /* Called from IO thread context */
1375 void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) {
1376 pa_sink_assert_ref(s);
1377 pa_sink_assert_io_context(s);
1378 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1379 pa_assert(length > 0);
1380 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1383 pa_assert(!s->thread_info.rewind_requested);
1384 pa_assert(s->thread_info.rewind_nbytes == 0);
1388 pa_sink_render(s, length, result);
1390 if (result->length < length) {
1393 pa_memchunk_make_writable(result, length);
1395 chunk.memblock = result->memblock;
1396 chunk.index = result->index + result->length;
1397 chunk.length = length - result->length;
1399 pa_sink_render_into_full(s, &chunk);
1401 result->length = length;
1407 /* Called from main thread */
1408 int pa_sink_update_rate(pa_sink *s, uint32_t rate, bool passthrough) {
1410 uint32_t desired_rate = rate;
1411 uint32_t default_rate = s->default_sample_rate;
1412 uint32_t alternate_rate = s->alternate_sample_rate;
1415 bool default_rate_is_usable = false;
1416 bool alternate_rate_is_usable = false;
1417 bool avoid_resampling = s->core->avoid_resampling;
1419 if (rate == s->sample_spec.rate)
1422 if (!s->update_rate)
1425 if (PA_UNLIKELY(default_rate == alternate_rate && !passthrough && !avoid_resampling)) {
1426 pa_log_debug("Default and alternate sample rates are the same, so there is no point in switching.");
1430 if (PA_SINK_IS_RUNNING(s->state)) {
1431 pa_log_info("Cannot update rate, SINK_IS_RUNNING, will keep using %u Hz",
1432 s->sample_spec.rate);
1436 if (s->monitor_source) {
1437 if (PA_SOURCE_IS_RUNNING(s->monitor_source->state) == true) {
1438 pa_log_info("Cannot update rate, monitor source is RUNNING");
1443 if (PA_UNLIKELY(!pa_sample_rate_valid(desired_rate)))
1446 if (avoid_resampling && (rate >= default_rate || rate >= alternate_rate)) {
1447 /* We just try to set the sink input's sample rate if it's not too low */
1448 desired_rate = rate;
1450 } else if (!passthrough && default_rate != desired_rate && alternate_rate != desired_rate) {
1451 if (default_rate % 11025 == 0 && desired_rate % 11025 == 0)
1452 default_rate_is_usable = true;
1453 if (default_rate % 4000 == 0 && desired_rate % 4000 == 0)
1454 default_rate_is_usable = true;
1455 if (alternate_rate && alternate_rate % 11025 == 0 && desired_rate % 11025 == 0)
1456 alternate_rate_is_usable = true;
1457 if (alternate_rate && alternate_rate % 4000 == 0 && desired_rate % 4000 == 0)
1458 alternate_rate_is_usable = true;
1460 if (alternate_rate_is_usable && !default_rate_is_usable)
1461 desired_rate = alternate_rate;
1463 desired_rate = default_rate;
1466 if (desired_rate == s->sample_spec.rate)
1469 if (!passthrough && pa_sink_used_by(s) > 0)
1472 pa_log_debug("Suspending sink %s due to changing the sample rate.", s->name);
1473 pa_sink_suspend(s, true, PA_SUSPEND_INTERNAL);
1475 if (s->update_rate(s, desired_rate) >= 0) {
1476 /* update monitor source as well */
1477 if (s->monitor_source && !passthrough)
1478 pa_source_update_rate(s->monitor_source, desired_rate, false);
1479 pa_log_info("Changed sampling rate successfully");
1481 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1482 if (i->state == PA_SINK_INPUT_CORKED)
1483 pa_sink_input_update_rate(i);
1489 pa_sink_suspend(s, false, PA_SUSPEND_INTERNAL);
1494 /* Called from main thread */
1495 pa_usec_t pa_sink_get_latency(pa_sink *s) {
1498 pa_sink_assert_ref(s);
1499 pa_assert_ctl_context();
1500 pa_assert(PA_SINK_IS_LINKED(s->state));
1502 /* The returned value is supposed to be in the time domain of the sound card! */
1504 if (s->state == PA_SINK_SUSPENDED)
1507 if (!(s->flags & PA_SINK_LATENCY))
1510 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1512 /* usec is unsigned, so check that the offset can be added to usec without
1514 if (-s->port_latency_offset <= (int64_t) usec)
1515 usec += s->port_latency_offset;
1522 /* Called from IO thread */
1523 pa_usec_t pa_sink_get_latency_within_thread(pa_sink *s) {
1527 pa_sink_assert_ref(s);
1528 pa_sink_assert_io_context(s);
1529 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1531 /* The returned value is supposed to be in the time domain of the sound card! */
1533 if (s->thread_info.state == PA_SINK_SUSPENDED)
1536 if (!(s->flags & PA_SINK_LATENCY))
1539 o = PA_MSGOBJECT(s);
1541 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1543 if (o->process_msg(o, PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) < 0)
1546 /* usec is unsigned, so check that the offset can be added to usec without
1548 if (-s->thread_info.port_latency_offset <= (int64_t) usec)
1549 usec += s->thread_info.port_latency_offset;
1556 /* Called from the main thread (and also from the IO thread while the main
1557 * thread is waiting).
1559 * When a sink uses volume sharing, it never has the PA_SINK_FLAT_VOLUME flag
1560 * set. Instead, flat volume mode is detected by checking whether the root sink
1561 * has the flag set. */
1562 bool pa_sink_flat_volume_enabled(pa_sink *s) {
1563 pa_sink_assert_ref(s);
1565 s = pa_sink_get_master(s);
1568 return (s->flags & PA_SINK_FLAT_VOLUME);
1573 /* Called from the main thread (and also from the IO thread while the main
1574 * thread is waiting). */
1575 pa_sink *pa_sink_get_master(pa_sink *s) {
1576 pa_sink_assert_ref(s);
1578 while (s && (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1579 if (PA_UNLIKELY(!s->input_to_master))
1582 s = s->input_to_master->sink;
1588 /* Called from main context */
1589 bool pa_sink_is_filter(pa_sink *s) {
1590 pa_sink_assert_ref(s);
1592 return (s->input_to_master != NULL);
1595 /* Called from main context */
1596 bool pa_sink_is_passthrough(pa_sink *s) {
1597 pa_sink_input *alt_i;
1600 pa_sink_assert_ref(s);
1602 /* one and only one PASSTHROUGH input can possibly be connected */
1603 if (pa_idxset_size(s->inputs) == 1) {
1604 alt_i = pa_idxset_first(s->inputs, &idx);
1606 if (pa_sink_input_is_passthrough(alt_i))
1613 /* Called from main context */
1614 void pa_sink_enter_passthrough(pa_sink *s) {
1617 /* disable the monitor in passthrough mode */
1618 if (s->monitor_source) {
1619 pa_log_debug("Suspending monitor source %s, because the sink is entering the passthrough mode.", s->monitor_source->name);
1620 pa_source_suspend(s->monitor_source, true, PA_SUSPEND_PASSTHROUGH);
1623 /* set the volume to NORM */
1624 s->saved_volume = *pa_sink_get_volume(s, true);
1625 s->saved_save_volume = s->save_volume;
1627 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1628 pa_sink_set_volume(s, &volume, true, false);
1631 /* Called from main context */
1632 void pa_sink_leave_passthrough(pa_sink *s) {
1633 /* Unsuspend monitor */
1634 if (s->monitor_source) {
1635 pa_log_debug("Resuming monitor source %s, because the sink is leaving the passthrough mode.", s->monitor_source->name);
1636 pa_source_suspend(s->monitor_source, false, PA_SUSPEND_PASSTHROUGH);
1639 /* Restore sink volume to what it was before we entered passthrough mode */
1640 pa_sink_set_volume(s, &s->saved_volume, true, s->saved_save_volume);
1642 pa_cvolume_init(&s->saved_volume);
1643 s->saved_save_volume = false;
1646 /* Called from main context. */
1647 static void compute_reference_ratio(pa_sink_input *i) {
1649 pa_cvolume remapped;
1653 pa_assert(pa_sink_flat_volume_enabled(i->sink));
1656 * Calculates the reference ratio from the sink's reference
1657 * volume. This basically calculates:
1659 * i->reference_ratio = i->volume / i->sink->reference_volume
1662 remapped = i->sink->reference_volume;
1663 pa_cvolume_remap(&remapped, &i->sink->channel_map, &i->channel_map);
1665 ratio = i->reference_ratio;
1667 for (c = 0; c < i->sample_spec.channels; c++) {
1669 /* We don't update when the sink volume is 0 anyway */
1670 if (remapped.values[c] <= PA_VOLUME_MUTED)
1673 /* Don't update the reference ratio unless necessary */
1674 if (pa_sw_volume_multiply(
1676 remapped.values[c]) == i->volume.values[c])
1679 ratio.values[c] = pa_sw_volume_divide(
1680 i->volume.values[c],
1681 remapped.values[c]);
1684 pa_sink_input_set_reference_ratio(i, &ratio);
1687 /* Called from main context. Only called for the root sink in volume sharing
1688 * cases, except for internal recursive calls. */
1689 static void compute_reference_ratios(pa_sink *s) {
1693 pa_sink_assert_ref(s);
1694 pa_assert_ctl_context();
1695 pa_assert(PA_SINK_IS_LINKED(s->state));
1696 pa_assert(pa_sink_flat_volume_enabled(s));
1698 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1699 compute_reference_ratio(i);
1701 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1702 compute_reference_ratios(i->origin_sink);
1706 /* Called from main context. Only called for the root sink in volume sharing
1707 * cases, except for internal recursive calls. */
1708 static void compute_real_ratios(pa_sink *s) {
1712 pa_sink_assert_ref(s);
1713 pa_assert_ctl_context();
1714 pa_assert(PA_SINK_IS_LINKED(s->state));
1715 pa_assert(pa_sink_flat_volume_enabled(s));
1717 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1719 pa_cvolume remapped;
1721 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1722 /* The origin sink uses volume sharing, so this input's real ratio
1723 * is handled as a special case - the real ratio must be 0 dB, and
1724 * as a result i->soft_volume must equal i->volume_factor. */
1725 pa_cvolume_reset(&i->real_ratio, i->real_ratio.channels);
1726 i->soft_volume = i->volume_factor;
1728 compute_real_ratios(i->origin_sink);
1734 * This basically calculates:
1736 * i->real_ratio := i->volume / s->real_volume
1737 * i->soft_volume := i->real_ratio * i->volume_factor
1740 remapped = s->real_volume;
1741 pa_cvolume_remap(&remapped, &s->channel_map, &i->channel_map);
1743 i->real_ratio.channels = i->sample_spec.channels;
1744 i->soft_volume.channels = i->sample_spec.channels;
1746 for (c = 0; c < i->sample_spec.channels; c++) {
1748 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1749 /* We leave i->real_ratio untouched */
1750 i->soft_volume.values[c] = PA_VOLUME_MUTED;
1754 /* Don't lose accuracy unless necessary */
1755 if (pa_sw_volume_multiply(
1756 i->real_ratio.values[c],
1757 remapped.values[c]) != i->volume.values[c])
1759 i->real_ratio.values[c] = pa_sw_volume_divide(
1760 i->volume.values[c],
1761 remapped.values[c]);
1763 i->soft_volume.values[c] = pa_sw_volume_multiply(
1764 i->real_ratio.values[c],
1765 i->volume_factor.values[c]);
1768 /* We don't copy the soft_volume to the thread_info data
1769 * here. That must be done by the caller */
1773 static pa_cvolume *cvolume_remap_minimal_impact(
1775 const pa_cvolume *template,
1776 const pa_channel_map *from,
1777 const pa_channel_map *to) {
1782 pa_assert(template);
1785 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1786 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1788 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1789 * mapping from sink input to sink volumes:
1791 * If template is a possible remapping from v it is used instead
1792 * of remapping anew.
1794 * If the channel maps don't match we set an all-channel volume on
1795 * the sink to ensure that changing a volume on one stream has no
1796 * effect that cannot be compensated for in another stream that
1797 * does not have the same channel map as the sink. */
1799 if (pa_channel_map_equal(from, to))
1803 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1808 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1812 /* Called from main thread. Only called for the root sink in volume sharing
1813 * cases, except for internal recursive calls. */
1814 static void get_maximum_input_volume(pa_sink *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1818 pa_sink_assert_ref(s);
1819 pa_assert(max_volume);
1820 pa_assert(channel_map);
1821 pa_assert(pa_sink_flat_volume_enabled(s));
1823 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1824 pa_cvolume remapped;
1826 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1827 get_maximum_input_volume(i->origin_sink, max_volume, channel_map);
1829 /* Ignore this input. The origin sink uses volume sharing, so this
1830 * input's volume will be set to be equal to the root sink's real
1831 * volume. Obviously this input's current volume must not then
1832 * affect what the root sink's real volume will be. */
1836 remapped = i->volume;
1837 cvolume_remap_minimal_impact(&remapped, max_volume, &i->channel_map, channel_map);
1838 pa_cvolume_merge(max_volume, max_volume, &remapped);
1842 /* Called from main thread. Only called for the root sink in volume sharing
1843 * cases, except for internal recursive calls. */
1844 static bool has_inputs(pa_sink *s) {
1848 pa_sink_assert_ref(s);
1850 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1851 if (!i->origin_sink || !(i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || has_inputs(i->origin_sink))
1858 /* Called from main thread. Only called for the root sink in volume sharing
1859 * cases, except for internal recursive calls. */
1860 static void update_real_volume(pa_sink *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1864 pa_sink_assert_ref(s);
1865 pa_assert(new_volume);
1866 pa_assert(channel_map);
1868 s->real_volume = *new_volume;
1869 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1871 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1872 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1873 if (pa_sink_flat_volume_enabled(s)) {
1874 pa_cvolume new_input_volume;
1876 /* Follow the root sink's real volume. */
1877 new_input_volume = *new_volume;
1878 pa_cvolume_remap(&new_input_volume, channel_map, &i->channel_map);
1879 pa_sink_input_set_volume_direct(i, &new_input_volume);
1880 compute_reference_ratio(i);
1883 update_real_volume(i->origin_sink, new_volume, channel_map);
1888 /* Called from main thread. Only called for the root sink in shared volume
1890 static void compute_real_volume(pa_sink *s) {
1891 pa_sink_assert_ref(s);
1892 pa_assert_ctl_context();
1893 pa_assert(PA_SINK_IS_LINKED(s->state));
1894 pa_assert(pa_sink_flat_volume_enabled(s));
1895 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
1897 /* This determines the maximum volume of all streams and sets
1898 * s->real_volume accordingly. */
1900 if (!has_inputs(s)) {
1901 /* In the special case that we have no sink inputs we leave the
1902 * volume unmodified. */
1903 update_real_volume(s, &s->reference_volume, &s->channel_map);
1907 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1909 /* First let's determine the new maximum volume of all inputs
1910 * connected to this sink */
1911 get_maximum_input_volume(s, &s->real_volume, &s->channel_map);
1912 update_real_volume(s, &s->real_volume, &s->channel_map);
1914 /* Then, let's update the real ratios/soft volumes of all inputs
1915 * connected to this sink */
1916 compute_real_ratios(s);
1919 /* Called from main thread. Only called for the root sink in shared volume
1920 * cases, except for internal recursive calls. */
1921 static void propagate_reference_volume(pa_sink *s) {
1925 pa_sink_assert_ref(s);
1926 pa_assert_ctl_context();
1927 pa_assert(PA_SINK_IS_LINKED(s->state));
1928 pa_assert(pa_sink_flat_volume_enabled(s));
1930 /* This is called whenever the sink volume changes that is not
1931 * caused by a sink input volume change. We need to fix up the
1932 * sink input volumes accordingly */
1934 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1935 pa_cvolume new_volume;
1937 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1938 propagate_reference_volume(i->origin_sink);
1940 /* Since the origin sink uses volume sharing, this input's volume
1941 * needs to be updated to match the root sink's real volume, but
1942 * that will be done later in update_shared_real_volume(). */
1946 /* This basically calculates:
1948 * i->volume := s->reference_volume * i->reference_ratio */
1950 new_volume = s->reference_volume;
1951 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
1952 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
1953 pa_sink_input_set_volume_direct(i, &new_volume);
1957 /* Called from main thread. Only called for the root sink in volume sharing
1958 * cases, except for internal recursive calls. The return value indicates
1959 * whether any reference volume actually changed. */
1960 static bool update_reference_volume(pa_sink *s, const pa_cvolume *v, const pa_channel_map *channel_map, bool save) {
1962 bool reference_volume_changed;
1966 pa_sink_assert_ref(s);
1967 pa_assert(PA_SINK_IS_LINKED(s->state));
1969 pa_assert(channel_map);
1970 pa_assert(pa_cvolume_valid(v));
1973 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
1975 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
1976 pa_sink_set_reference_volume_direct(s, &volume);
1978 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
1980 if (!reference_volume_changed && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1981 /* If the root sink's volume doesn't change, then there can't be any
1982 * changes in the other sinks in the sink tree either.
1984 * It's probably theoretically possible that even if the root sink's
1985 * volume changes slightly, some filter sink doesn't change its volume
1986 * due to rounding errors. If that happens, we still want to propagate
1987 * the changed root sink volume to the sinks connected to the
1988 * intermediate sink that didn't change its volume. This theoretical
1989 * possibility is the reason why we have that !(s->flags &
1990 * PA_SINK_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
1991 * notice even if we returned here false always if
1992 * reference_volume_changed is false. */
1995 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1996 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1997 update_reference_volume(i->origin_sink, v, channel_map, false);
2003 /* Called from main thread */
2004 void pa_sink_set_volume(
2006 const pa_cvolume *volume,
2010 pa_cvolume new_reference_volume;
2013 pa_sink_assert_ref(s);
2014 pa_assert_ctl_context();
2015 pa_assert(PA_SINK_IS_LINKED(s->state));
2016 pa_assert(!volume || pa_cvolume_valid(volume));
2017 pa_assert(volume || pa_sink_flat_volume_enabled(s));
2018 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
2020 /* make sure we don't change the volume when a PASSTHROUGH input is connected ...
2021 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
2022 if (pa_sink_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
2023 pa_log_warn("Cannot change volume, Sink is connected to PASSTHROUGH input");
2027 /* In case of volume sharing, the volume is set for the root sink first,
2028 * from which it's then propagated to the sharing sinks. */
2029 root_sink = pa_sink_get_master(s);
2031 if (PA_UNLIKELY(!root_sink))
2034 /* As a special exception we accept mono volumes on all sinks --
2035 * even on those with more complex channel maps */
2038 if (pa_cvolume_compatible(volume, &s->sample_spec))
2039 new_reference_volume = *volume;
2041 new_reference_volume = s->reference_volume;
2042 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
2045 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2047 if (update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save)) {
2048 if (pa_sink_flat_volume_enabled(root_sink)) {
2049 /* OK, propagate this volume change back to the inputs */
2050 propagate_reference_volume(root_sink);
2052 /* And now recalculate the real volume */
2053 compute_real_volume(root_sink);
2055 update_real_volume(root_sink, &root_sink->reference_volume, &root_sink->channel_map);
2059 /* If volume is NULL we synchronize the sink's real and
2060 * reference volumes with the stream volumes. */
2062 pa_assert(pa_sink_flat_volume_enabled(root_sink));
2064 /* Ok, let's determine the new real volume */
2065 compute_real_volume(root_sink);
2067 /* Let's 'push' the reference volume if necessary */
2068 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_sink->real_volume);
2069 /* If the sink and its root don't have the same number of channels, we need to remap */
2070 if (s != root_sink && !pa_channel_map_equal(&s->channel_map, &root_sink->channel_map))
2071 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2072 update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save);
2074 /* Now that the reference volume is updated, we can update the streams'
2075 * reference ratios. */
2076 compute_reference_ratios(root_sink);
2079 if (root_sink->set_volume) {
2080 /* If we have a function set_volume(), then we do not apply a
2081 * soft volume by default. However, set_volume() is free to
2082 * apply one to root_sink->soft_volume */
2084 pa_cvolume_reset(&root_sink->soft_volume, root_sink->sample_spec.channels);
2085 if (!(root_sink->flags & PA_SINK_DEFERRED_VOLUME))
2086 root_sink->set_volume(root_sink);
2089 /* If we have no function set_volume(), then the soft volume
2090 * becomes the real volume */
2091 root_sink->soft_volume = root_sink->real_volume;
2093 /* This tells the sink that soft volume and/or real volume changed */
2095 pa_assert_se(pa_asyncmsgq_send(root_sink->asyncmsgq, PA_MSGOBJECT(root_sink), PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
2098 /* Called from the io thread if sync volume is used, otherwise from the main thread.
2099 * Only to be called by sink implementor */
2100 void pa_sink_set_soft_volume(pa_sink *s, const pa_cvolume *volume) {
2102 pa_sink_assert_ref(s);
2103 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2105 if (s->flags & PA_SINK_DEFERRED_VOLUME)
2106 pa_sink_assert_io_context(s);
2108 pa_assert_ctl_context();
2111 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
2113 s->soft_volume = *volume;
2115 if (PA_SINK_IS_LINKED(s->state) && !(s->flags & PA_SINK_DEFERRED_VOLUME))
2116 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
2118 s->thread_info.soft_volume = s->soft_volume;
2121 /* Called from the main thread. Only called for the root sink in volume sharing
2122 * cases, except for internal recursive calls. */
2123 static void propagate_real_volume(pa_sink *s, const pa_cvolume *old_real_volume) {
2127 pa_sink_assert_ref(s);
2128 pa_assert(old_real_volume);
2129 pa_assert_ctl_context();
2130 pa_assert(PA_SINK_IS_LINKED(s->state));
2132 /* This is called when the hardware's real volume changes due to
2133 * some external event. We copy the real volume into our
2134 * reference volume and then rebuild the stream volumes based on
2135 * i->real_ratio which should stay fixed. */
2137 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
2138 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
2141 /* 1. Make the real volume the reference volume */
2142 update_reference_volume(s, &s->real_volume, &s->channel_map, true);
2145 if (pa_sink_flat_volume_enabled(s)) {
2147 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2148 pa_cvolume new_volume;
2150 /* 2. Since the sink's reference and real volumes are equal
2151 * now our ratios should be too. */
2152 pa_sink_input_set_reference_ratio(i, &i->real_ratio);
2154 /* 3. Recalculate the new stream reference volume based on the
2155 * reference ratio and the sink's reference volume.
2157 * This basically calculates:
2159 * i->volume = s->reference_volume * i->reference_ratio
2161 * This is identical to propagate_reference_volume() */
2162 new_volume = s->reference_volume;
2163 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
2164 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
2165 pa_sink_input_set_volume_direct(i, &new_volume);
2167 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2168 propagate_real_volume(i->origin_sink, old_real_volume);
2172 /* Something got changed in the hardware. It probably makes sense
2173 * to save changed hw settings given that hw volume changes not
2174 * triggered by PA are almost certainly done by the user. */
2175 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2176 s->save_volume = true;
2179 /* Called from io thread */
2180 void pa_sink_update_volume_and_mute(pa_sink *s) {
2182 pa_sink_assert_io_context(s);
2184 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
2187 /* Called from main thread */
2188 const pa_cvolume *pa_sink_get_volume(pa_sink *s, bool force_refresh) {
2189 pa_sink_assert_ref(s);
2190 pa_assert_ctl_context();
2191 pa_assert(PA_SINK_IS_LINKED(s->state));
2193 if (s->refresh_volume || force_refresh) {
2194 struct pa_cvolume old_real_volume;
2196 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2198 old_real_volume = s->real_volume;
2200 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume)
2203 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
2205 update_real_volume(s, &s->real_volume, &s->channel_map);
2206 propagate_real_volume(s, &old_real_volume);
2209 return &s->reference_volume;
2212 /* Called from main thread. In volume sharing cases, only the root sink may
2214 void pa_sink_volume_changed(pa_sink *s, const pa_cvolume *new_real_volume) {
2215 pa_cvolume old_real_volume;
2217 pa_sink_assert_ref(s);
2218 pa_assert_ctl_context();
2219 pa_assert(PA_SINK_IS_LINKED(s->state));
2220 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2222 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2224 old_real_volume = s->real_volume;
2225 update_real_volume(s, new_real_volume, &s->channel_map);
2226 propagate_real_volume(s, &old_real_volume);
2229 /* Called from main thread */
2230 void pa_sink_set_mute(pa_sink *s, bool mute, bool save) {
2233 pa_sink_assert_ref(s);
2234 pa_assert_ctl_context();
2236 old_muted = s->muted;
2238 if (mute == old_muted) {
2239 s->save_muted |= save;
2244 s->save_muted = save;
2246 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->set_mute) {
2247 s->set_mute_in_progress = true;
2249 s->set_mute_in_progress = false;
2252 if (!PA_SINK_IS_LINKED(s->state))
2255 pa_log_debug("The mute of sink %s changed from %s to %s.", s->name, pa_yes_no(old_muted), pa_yes_no(mute));
2256 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2257 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2258 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_MUTE_CHANGED], s);
2261 /* Called from main thread */
2262 bool pa_sink_get_mute(pa_sink *s, bool force_refresh) {
2264 pa_sink_assert_ref(s);
2265 pa_assert_ctl_context();
2266 pa_assert(PA_SINK_IS_LINKED(s->state));
2268 if ((s->refresh_muted || force_refresh) && s->get_mute) {
2271 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2272 if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MUTE, &mute, 0, NULL) >= 0)
2273 pa_sink_mute_changed(s, mute);
2275 if (s->get_mute(s, &mute) >= 0)
2276 pa_sink_mute_changed(s, mute);
2283 /* Called from main thread */
2284 void pa_sink_mute_changed(pa_sink *s, bool new_muted) {
2285 pa_sink_assert_ref(s);
2286 pa_assert_ctl_context();
2287 pa_assert(PA_SINK_IS_LINKED(s->state));
2289 if (s->set_mute_in_progress)
2292 /* pa_sink_set_mute() does this same check, so this may appear redundant,
2293 * but we must have this here also, because the save parameter of
2294 * pa_sink_set_mute() would otherwise have unintended side effects (saving
2295 * the mute state when it shouldn't be saved). */
2296 if (new_muted == s->muted)
2299 pa_sink_set_mute(s, new_muted, true);
2302 /* Called from main thread */
2303 bool pa_sink_update_proplist(pa_sink *s, pa_update_mode_t mode, pa_proplist *p) {
2304 pa_sink_assert_ref(s);
2305 pa_assert_ctl_context();
2308 pa_proplist_update(s->proplist, mode, p);
2310 if (PA_SINK_IS_LINKED(s->state)) {
2311 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2312 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2318 /* Called from main thread */
2319 /* FIXME -- this should be dropped and be merged into pa_sink_update_proplist() */
2320 void pa_sink_set_description(pa_sink *s, const char *description) {
2322 pa_sink_assert_ref(s);
2323 pa_assert_ctl_context();
2325 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
2328 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2330 if (old && description && pa_streq(old, description))
2334 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
2336 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2338 if (s->monitor_source) {
2341 n = pa_sprintf_malloc("Monitor Source of %s", description ? description : s->name);
2342 pa_source_set_description(s->monitor_source, n);
2346 if (PA_SINK_IS_LINKED(s->state)) {
2347 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2348 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2352 /* Called from main thread */
2353 unsigned pa_sink_linked_by(pa_sink *s) {
2356 pa_sink_assert_ref(s);
2357 pa_assert_ctl_context();
2358 pa_assert(PA_SINK_IS_LINKED(s->state));
2360 ret = pa_idxset_size(s->inputs);
2362 /* We add in the number of streams connected to us here. Please
2363 * note the asymmetry to pa_sink_used_by()! */
2365 if (s->monitor_source)
2366 ret += pa_source_linked_by(s->monitor_source);
2371 /* Called from main thread */
2372 unsigned pa_sink_used_by(pa_sink *s) {
2375 pa_sink_assert_ref(s);
2376 pa_assert_ctl_context();
2377 pa_assert(PA_SINK_IS_LINKED(s->state));
2379 ret = pa_idxset_size(s->inputs);
2380 pa_assert(ret >= s->n_corked);
2382 /* Streams connected to our monitor source do not matter for
2383 * pa_sink_used_by()!.*/
2385 return ret - s->n_corked;
2388 /* Called from main thread */
2389 unsigned pa_sink_check_suspend(pa_sink *s, pa_sink_input *ignore_input, pa_source_output *ignore_output) {
2394 pa_sink_assert_ref(s);
2395 pa_assert_ctl_context();
2397 if (!PA_SINK_IS_LINKED(s->state))
2402 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2403 pa_sink_input_state_t st;
2405 if (i == ignore_input)
2408 st = pa_sink_input_get_state(i);
2410 /* We do not assert here. It is perfectly valid for a sink input to
2411 * be in the INIT state (i.e. created, marked done but not yet put)
2412 * and we should not care if it's unlinked as it won't contribute
2413 * towards our busy status.
2415 if (!PA_SINK_INPUT_IS_LINKED(st))
2418 if (st == PA_SINK_INPUT_CORKED)
2421 if (i->flags & PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND)
2427 if (s->monitor_source)
2428 ret += pa_source_check_suspend(s->monitor_source, ignore_output);
2433 /* Called from the IO thread */
2434 static void sync_input_volumes_within_thread(pa_sink *s) {
2438 pa_sink_assert_ref(s);
2439 pa_sink_assert_io_context(s);
2441 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2442 if (pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume))
2445 i->thread_info.soft_volume = i->soft_volume;
2446 pa_sink_input_request_rewind(i, 0, true, false, false);
2450 /* Called from the IO thread. Only called for the root sink in volume sharing
2451 * cases, except for internal recursive calls. */
2452 static void set_shared_volume_within_thread(pa_sink *s) {
2453 pa_sink_input *i = NULL;
2456 pa_sink_assert_ref(s);
2458 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
2460 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2461 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2462 set_shared_volume_within_thread(i->origin_sink);
2466 /* Called from IO thread, except when it is not */
2467 int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
2468 pa_sink *s = PA_SINK(o);
2469 pa_sink_assert_ref(s);
2471 switch ((pa_sink_message_t) code) {
2473 case PA_SINK_MESSAGE_ADD_INPUT: {
2474 pa_sink_input *i = PA_SINK_INPUT(userdata);
2476 /* If you change anything here, make sure to change the
2477 * sink input handling a few lines down at
2478 * PA_SINK_MESSAGE_FINISH_MOVE, too. */
2480 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2482 /* Since the caller sleeps in pa_sink_input_put(), we can
2483 * safely access data outside of thread_info even though
2486 if ((i->thread_info.sync_prev = i->sync_prev)) {
2487 pa_assert(i->sink == i->thread_info.sync_prev->sink);
2488 pa_assert(i->sync_prev->sync_next == i);
2489 i->thread_info.sync_prev->thread_info.sync_next = i;
2492 if ((i->thread_info.sync_next = i->sync_next)) {
2493 pa_assert(i->sink == i->thread_info.sync_next->sink);
2494 pa_assert(i->sync_next->sync_prev == i);
2495 i->thread_info.sync_next->thread_info.sync_prev = i;
2498 pa_sink_input_attach(i);
2500 pa_sink_input_set_state_within_thread(i, i->state);
2502 /* The requested latency of the sink input needs to be fixed up and
2503 * then configured on the sink. If this causes the sink latency to
2504 * go down, the sink implementor is responsible for doing a rewind
2505 * in the update_requested_latency() callback to ensure that the
2506 * sink buffer doesn't contain more data than what the new latency
2509 * XXX: Does it really make sense to push this responsibility to
2510 * the sink implementors? Wouldn't it be better to do it once in
2511 * the core than many times in the modules? */
2513 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2514 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2516 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2517 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2519 /* We don't rewind here automatically. This is left to the
2520 * sink input implementor because some sink inputs need a
2521 * slow start, i.e. need some time to buffer client
2522 * samples before beginning streaming.
2524 * XXX: Does it really make sense to push this functionality to
2525 * the sink implementors? Wouldn't it be better to do it once in
2526 * the core than many times in the modules? */
2528 /* In flat volume mode we need to update the volume as
2530 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2533 case PA_SINK_MESSAGE_REMOVE_INPUT: {
2534 pa_sink_input *i = PA_SINK_INPUT(userdata);
2536 /* If you change anything here, make sure to change the
2537 * sink input handling a few lines down at
2538 * PA_SINK_MESSAGE_START_MOVE, too. */
2540 pa_sink_input_detach(i);
2542 pa_sink_input_set_state_within_thread(i, i->state);
2544 /* Since the caller sleeps in pa_sink_input_unlink(),
2545 * we can safely access data outside of thread_info even
2546 * though it is mutable */
2548 pa_assert(!i->sync_prev);
2549 pa_assert(!i->sync_next);
2551 if (i->thread_info.sync_prev) {
2552 i->thread_info.sync_prev->thread_info.sync_next = i->thread_info.sync_prev->sync_next;
2553 i->thread_info.sync_prev = NULL;
2556 if (i->thread_info.sync_next) {
2557 i->thread_info.sync_next->thread_info.sync_prev = i->thread_info.sync_next->sync_prev;
2558 i->thread_info.sync_next = NULL;
2561 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2562 pa_sink_invalidate_requested_latency(s, true);
2563 pa_sink_request_rewind(s, (size_t) -1);
2565 /* In flat volume mode we need to update the volume as
2567 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2570 case PA_SINK_MESSAGE_START_MOVE: {
2571 pa_sink_input *i = PA_SINK_INPUT(userdata);
2573 /* We don't support moving synchronized streams. */
2574 pa_assert(!i->sync_prev);
2575 pa_assert(!i->sync_next);
2576 pa_assert(!i->thread_info.sync_next);
2577 pa_assert(!i->thread_info.sync_prev);
2579 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2581 size_t sink_nbytes, total_nbytes;
2583 /* The old sink probably has some audio from this
2584 * stream in its buffer. We want to "take it back" as
2585 * much as possible and play it to the new sink. We
2586 * don't know at this point how much the old sink can
2587 * rewind. We have to pick something, and that
2588 * something is the full latency of the old sink here.
2589 * So we rewind the stream buffer by the sink latency
2590 * amount, which may be more than what we should
2591 * rewind. This can result in a chunk of audio being
2592 * played both to the old sink and the new sink.
2594 * FIXME: Fix this code so that we don't have to make
2595 * guesses about how much the sink will actually be
2596 * able to rewind. If someone comes up with a solution
2597 * for this, something to note is that the part of the
2598 * latency that the old sink couldn't rewind should
2599 * ideally be compensated after the stream has moved
2600 * to the new sink by adding silence. The new sink
2601 * most likely can't start playing the moved stream
2602 * immediately, and that gap should be removed from
2603 * the "compensation silence" (at least at the time of
2604 * writing this, the move finish code will actually
2605 * already take care of dropping the new sink's
2606 * unrewindable latency, so taking into account the
2607 * unrewindable latency of the old sink is the only
2610 * The render_memblockq contents are discarded,
2611 * because when the sink changes, the format of the
2612 * audio stored in the render_memblockq may change
2613 * too, making the stored audio invalid. FIXME:
2614 * However, the read and write indices are moved back
2615 * the same amount, so if they are not the same now,
2616 * they won't be the same after the rewind either. If
2617 * the write index of the render_memblockq is ahead of
2618 * the read index, then the render_memblockq will feed
2619 * the new sink some silence first, which it shouldn't
2620 * do. The write index should be flushed to be the
2621 * same as the read index. */
2623 /* Get the latency of the sink */
2624 usec = pa_sink_get_latency_within_thread(s);
2625 sink_nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2626 total_nbytes = sink_nbytes + pa_memblockq_get_length(i->thread_info.render_memblockq);
2628 if (total_nbytes > 0) {
2629 i->thread_info.rewrite_nbytes = i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, total_nbytes) : total_nbytes;
2630 i->thread_info.rewrite_flush = true;
2631 pa_sink_input_process_rewind(i, sink_nbytes);
2635 pa_sink_input_detach(i);
2637 /* Let's remove the sink input ...*/
2638 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2640 pa_sink_invalidate_requested_latency(s, true);
2642 pa_log_debug("Requesting rewind due to started move");
2643 pa_sink_request_rewind(s, (size_t) -1);
2645 /* In flat volume mode we need to update the volume as
2647 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2650 case PA_SINK_MESSAGE_FINISH_MOVE: {
2651 pa_sink_input *i = PA_SINK_INPUT(userdata);
2653 /* We don't support moving synchronized streams. */
2654 pa_assert(!i->sync_prev);
2655 pa_assert(!i->sync_next);
2656 pa_assert(!i->thread_info.sync_next);
2657 pa_assert(!i->thread_info.sync_prev);
2659 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2661 pa_sink_input_attach(i);
2663 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2667 /* In the ideal case the new sink would start playing
2668 * the stream immediately. That requires the sink to
2669 * be able to rewind all of its latency, which usually
2670 * isn't possible, so there will probably be some gap
2671 * before the moved stream becomes audible. We then
2672 * have two possibilities: 1) start playing the stream
2673 * from where it is now, or 2) drop the unrewindable
2674 * latency of the sink from the stream. With option 1
2675 * we won't lose any audio but the stream will have a
2676 * pause. With option 2 we may lose some audio but the
2677 * stream time will be somewhat in sync with the wall
2678 * clock. Lennart seems to have chosen option 2 (one
2679 * of the reasons might have been that option 1 is
2680 * actually much harder to implement), so we drop the
2681 * latency of the new sink from the moved stream and
2682 * hope that the sink will undo most of that in the
2685 /* Get the latency of the sink */
2686 usec = pa_sink_get_latency_within_thread(s);
2687 nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2690 pa_sink_input_drop(i, nbytes);
2692 pa_log_debug("Requesting rewind due to finished move");
2693 pa_sink_request_rewind(s, nbytes);
2696 /* Updating the requested sink latency has to be done
2697 * after the sink rewind request, not before, because
2698 * otherwise the sink may limit the rewind amount
2701 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2702 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2704 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2705 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2707 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2710 case PA_SINK_MESSAGE_SET_SHARED_VOLUME: {
2711 pa_sink *root_sink = pa_sink_get_master(s);
2713 if (PA_LIKELY(root_sink))
2714 set_shared_volume_within_thread(root_sink);
2719 case PA_SINK_MESSAGE_SET_VOLUME_SYNCED:
2721 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2723 pa_sink_volume_change_push(s);
2725 /* Fall through ... */
2727 case PA_SINK_MESSAGE_SET_VOLUME:
2729 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2730 s->thread_info.soft_volume = s->soft_volume;
2731 pa_sink_request_rewind(s, (size_t) -1);
2734 /* Fall through ... */
2736 case PA_SINK_MESSAGE_SYNC_VOLUMES:
2737 sync_input_volumes_within_thread(s);
2740 case PA_SINK_MESSAGE_GET_VOLUME:
2742 if ((s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume) {
2744 pa_sink_volume_change_flush(s);
2745 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2748 /* In case sink implementor reset SW volume. */
2749 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2750 s->thread_info.soft_volume = s->soft_volume;
2751 pa_sink_request_rewind(s, (size_t) -1);
2756 case PA_SINK_MESSAGE_SET_MUTE:
2758 if (s->thread_info.soft_muted != s->muted) {
2759 s->thread_info.soft_muted = s->muted;
2760 pa_sink_request_rewind(s, (size_t) -1);
2763 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->set_mute)
2768 case PA_SINK_MESSAGE_GET_MUTE:
2770 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->get_mute)
2771 return s->get_mute(s, userdata);
2775 case PA_SINK_MESSAGE_SET_STATE: {
2777 bool suspend_change =
2778 (s->thread_info.state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(PA_PTR_TO_UINT(userdata))) ||
2779 (PA_SINK_IS_OPENED(s->thread_info.state) && PA_PTR_TO_UINT(userdata) == PA_SINK_SUSPENDED);
2781 s->thread_info.state = PA_PTR_TO_UINT(userdata);
2783 if (s->thread_info.state == PA_SINK_SUSPENDED) {
2784 s->thread_info.rewind_nbytes = 0;
2785 s->thread_info.rewind_requested = false;
2788 if (suspend_change) {
2792 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
2793 if (i->suspend_within_thread)
2794 i->suspend_within_thread(i, s->thread_info.state == PA_SINK_SUSPENDED);
2800 case PA_SINK_MESSAGE_GET_REQUESTED_LATENCY: {
2802 pa_usec_t *usec = userdata;
2803 *usec = pa_sink_get_requested_latency_within_thread(s);
2805 /* Yes, that's right, the IO thread will see -1 when no
2806 * explicit requested latency is configured, the main
2807 * thread will see max_latency */
2808 if (*usec == (pa_usec_t) -1)
2809 *usec = s->thread_info.max_latency;
2814 case PA_SINK_MESSAGE_SET_LATENCY_RANGE: {
2815 pa_usec_t *r = userdata;
2817 pa_sink_set_latency_range_within_thread(s, r[0], r[1]);
2822 case PA_SINK_MESSAGE_GET_LATENCY_RANGE: {
2823 pa_usec_t *r = userdata;
2825 r[0] = s->thread_info.min_latency;
2826 r[1] = s->thread_info.max_latency;
2831 case PA_SINK_MESSAGE_GET_FIXED_LATENCY:
2833 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2836 case PA_SINK_MESSAGE_SET_FIXED_LATENCY:
2838 pa_sink_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2841 case PA_SINK_MESSAGE_GET_MAX_REWIND:
2843 *((size_t*) userdata) = s->thread_info.max_rewind;
2846 case PA_SINK_MESSAGE_GET_MAX_REQUEST:
2848 *((size_t*) userdata) = s->thread_info.max_request;
2851 case PA_SINK_MESSAGE_SET_MAX_REWIND:
2853 pa_sink_set_max_rewind_within_thread(s, (size_t) offset);
2856 case PA_SINK_MESSAGE_SET_MAX_REQUEST:
2858 pa_sink_set_max_request_within_thread(s, (size_t) offset);
2861 case PA_SINK_MESSAGE_SET_PORT:
2863 pa_assert(userdata);
2865 struct sink_message_set_port *msg_data = userdata;
2866 msg_data->ret = s->set_port(s, msg_data->port);
2870 case PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2871 /* This message is sent from IO-thread and handled in main thread. */
2872 pa_assert_ctl_context();
2874 /* Make sure we're not messing with main thread when no longer linked */
2875 if (!PA_SINK_IS_LINKED(s->state))
2878 pa_sink_get_volume(s, true);
2879 pa_sink_get_mute(s, true);
2882 case PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET:
2883 s->thread_info.port_latency_offset = offset;
2886 case PA_SINK_MESSAGE_GET_LATENCY:
2887 case PA_SINK_MESSAGE_MAX:
2894 /* Called from main thread */
2895 int pa_sink_suspend_all(pa_core *c, bool suspend, pa_suspend_cause_t cause) {
2900 pa_core_assert_ref(c);
2901 pa_assert_ctl_context();
2902 pa_assert(cause != 0);
2904 PA_IDXSET_FOREACH(sink, c->sinks, idx) {
2907 if ((r = pa_sink_suspend(sink, suspend, cause)) < 0)
2914 /* Called from IO thread */
2915 void pa_sink_detach_within_thread(pa_sink *s) {
2919 pa_sink_assert_ref(s);
2920 pa_sink_assert_io_context(s);
2921 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2923 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2924 pa_sink_input_detach(i);
2926 if (s->monitor_source)
2927 pa_source_detach_within_thread(s->monitor_source);
2930 /* Called from IO thread */
2931 void pa_sink_attach_within_thread(pa_sink *s) {
2935 pa_sink_assert_ref(s);
2936 pa_sink_assert_io_context(s);
2937 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2939 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2940 pa_sink_input_attach(i);
2942 if (s->monitor_source)
2943 pa_source_attach_within_thread(s->monitor_source);
2946 /* Called from IO thread */
2947 void pa_sink_request_rewind(pa_sink*s, size_t nbytes) {
2948 pa_sink_assert_ref(s);
2949 pa_sink_assert_io_context(s);
2950 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2952 if (nbytes == (size_t) -1)
2953 nbytes = s->thread_info.max_rewind;
2955 nbytes = PA_MIN(nbytes, s->thread_info.max_rewind);
2957 if (s->thread_info.rewind_requested &&
2958 nbytes <= s->thread_info.rewind_nbytes)
2961 s->thread_info.rewind_nbytes = nbytes;
2962 s->thread_info.rewind_requested = true;
2964 if (s->request_rewind)
2965 s->request_rewind(s);
2968 /* Called from IO thread */
2969 pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
2970 pa_usec_t result = (pa_usec_t) -1;
2973 pa_usec_t monitor_latency;
2975 pa_sink_assert_ref(s);
2976 pa_sink_assert_io_context(s);
2978 if (!(s->flags & PA_SINK_DYNAMIC_LATENCY))
2979 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
2981 if (s->thread_info.requested_latency_valid)
2982 return s->thread_info.requested_latency;
2984 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2985 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1 &&
2986 (result == (pa_usec_t) -1 || result > i->thread_info.requested_sink_latency))
2987 result = i->thread_info.requested_sink_latency;
2989 monitor_latency = pa_source_get_requested_latency_within_thread(s->monitor_source);
2991 if (monitor_latency != (pa_usec_t) -1 &&
2992 (result == (pa_usec_t) -1 || result > monitor_latency))
2993 result = monitor_latency;
2995 if (result != (pa_usec_t) -1)
2996 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
2998 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
2999 /* Only cache if properly initialized */
3000 s->thread_info.requested_latency = result;
3001 s->thread_info.requested_latency_valid = true;
3007 /* Called from main thread */
3008 pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
3011 pa_sink_assert_ref(s);
3012 pa_assert_ctl_context();
3013 pa_assert(PA_SINK_IS_LINKED(s->state));
3015 if (s->state == PA_SINK_SUSPENDED)
3018 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
3023 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3024 void pa_sink_set_max_rewind_within_thread(pa_sink *s, size_t max_rewind) {
3028 pa_sink_assert_ref(s);
3029 pa_sink_assert_io_context(s);
3031 if (max_rewind == s->thread_info.max_rewind)
3034 s->thread_info.max_rewind = max_rewind;
3036 if (PA_SINK_IS_LINKED(s->thread_info.state))
3037 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3038 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
3040 if (s->monitor_source)
3041 pa_source_set_max_rewind_within_thread(s->monitor_source, s->thread_info.max_rewind);
3044 /* Called from main thread */
3045 void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind) {
3046 pa_sink_assert_ref(s);
3047 pa_assert_ctl_context();
3049 if (PA_SINK_IS_LINKED(s->state))
3050 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
3052 pa_sink_set_max_rewind_within_thread(s, max_rewind);
3055 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3056 void pa_sink_set_max_request_within_thread(pa_sink *s, size_t max_request) {
3059 pa_sink_assert_ref(s);
3060 pa_sink_assert_io_context(s);
3062 if (max_request == s->thread_info.max_request)
3065 s->thread_info.max_request = max_request;
3067 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3070 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3071 pa_sink_input_update_max_request(i, s->thread_info.max_request);
3075 /* Called from main thread */
3076 void pa_sink_set_max_request(pa_sink *s, size_t max_request) {
3077 pa_sink_assert_ref(s);
3078 pa_assert_ctl_context();
3080 if (PA_SINK_IS_LINKED(s->state))
3081 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REQUEST, NULL, max_request, NULL) == 0);
3083 pa_sink_set_max_request_within_thread(s, max_request);
3086 /* Called from IO thread */
3087 void pa_sink_invalidate_requested_latency(pa_sink *s, bool dynamic) {
3091 pa_sink_assert_ref(s);
3092 pa_sink_assert_io_context(s);
3094 if ((s->flags & PA_SINK_DYNAMIC_LATENCY))
3095 s->thread_info.requested_latency_valid = false;
3099 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3101 if (s->update_requested_latency)
3102 s->update_requested_latency(s);
3104 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3105 if (i->update_sink_requested_latency)
3106 i->update_sink_requested_latency(i);
3110 /* Called from main thread */
3111 void pa_sink_set_latency_range(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3112 pa_sink_assert_ref(s);
3113 pa_assert_ctl_context();
3115 /* min_latency == 0: no limit
3116 * min_latency anything else: specified limit
3118 * Similar for max_latency */
3120 if (min_latency < ABSOLUTE_MIN_LATENCY)
3121 min_latency = ABSOLUTE_MIN_LATENCY;
3123 if (max_latency <= 0 ||
3124 max_latency > ABSOLUTE_MAX_LATENCY)
3125 max_latency = ABSOLUTE_MAX_LATENCY;
3127 pa_assert(min_latency <= max_latency);
3129 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3130 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3131 max_latency == ABSOLUTE_MAX_LATENCY) ||
3132 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3134 if (PA_SINK_IS_LINKED(s->state)) {
3140 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
3142 pa_sink_set_latency_range_within_thread(s, min_latency, max_latency);
3145 /* Called from main thread */
3146 void pa_sink_get_latency_range(pa_sink *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
3147 pa_sink_assert_ref(s);
3148 pa_assert_ctl_context();
3149 pa_assert(min_latency);
3150 pa_assert(max_latency);
3152 if (PA_SINK_IS_LINKED(s->state)) {
3153 pa_usec_t r[2] = { 0, 0 };
3155 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
3157 *min_latency = r[0];
3158 *max_latency = r[1];
3160 *min_latency = s->thread_info.min_latency;
3161 *max_latency = s->thread_info.max_latency;
3165 /* Called from IO thread */
3166 void pa_sink_set_latency_range_within_thread(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3167 pa_sink_assert_ref(s);
3168 pa_sink_assert_io_context(s);
3170 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
3171 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
3172 pa_assert(min_latency <= max_latency);
3174 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3175 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3176 max_latency == ABSOLUTE_MAX_LATENCY) ||
3177 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3179 if (s->thread_info.min_latency == min_latency &&
3180 s->thread_info.max_latency == max_latency)
3183 s->thread_info.min_latency = min_latency;
3184 s->thread_info.max_latency = max_latency;
3186 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3190 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3191 if (i->update_sink_latency_range)
3192 i->update_sink_latency_range(i);
3195 pa_sink_invalidate_requested_latency(s, false);
3197 pa_source_set_latency_range_within_thread(s->monitor_source, min_latency, max_latency);
3200 /* Called from main thread */
3201 void pa_sink_set_fixed_latency(pa_sink *s, pa_usec_t latency) {
3202 pa_sink_assert_ref(s);
3203 pa_assert_ctl_context();
3205 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3206 pa_assert(latency == 0);
3210 if (latency < ABSOLUTE_MIN_LATENCY)
3211 latency = ABSOLUTE_MIN_LATENCY;
3213 if (latency > ABSOLUTE_MAX_LATENCY)
3214 latency = ABSOLUTE_MAX_LATENCY;
3216 if (PA_SINK_IS_LINKED(s->state))
3217 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
3219 s->thread_info.fixed_latency = latency;
3221 pa_source_set_fixed_latency(s->monitor_source, latency);
3224 /* Called from main thread */
3225 pa_usec_t pa_sink_get_fixed_latency(pa_sink *s) {
3228 pa_sink_assert_ref(s);
3229 pa_assert_ctl_context();
3231 if (s->flags & PA_SINK_DYNAMIC_LATENCY)
3234 if (PA_SINK_IS_LINKED(s->state))
3235 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
3237 latency = s->thread_info.fixed_latency;
3242 /* Called from IO thread */
3243 void pa_sink_set_fixed_latency_within_thread(pa_sink *s, pa_usec_t latency) {
3244 pa_sink_assert_ref(s);
3245 pa_sink_assert_io_context(s);
3247 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3248 pa_assert(latency == 0);
3249 s->thread_info.fixed_latency = 0;
3251 if (s->monitor_source)
3252 pa_source_set_fixed_latency_within_thread(s->monitor_source, 0);
3257 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
3258 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
3260 if (s->thread_info.fixed_latency == latency)
3263 s->thread_info.fixed_latency = latency;
3265 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3269 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3270 if (i->update_sink_fixed_latency)
3271 i->update_sink_fixed_latency(i);
3274 pa_sink_invalidate_requested_latency(s, false);
3276 pa_source_set_fixed_latency_within_thread(s->monitor_source, latency);
3279 /* Called from main context */
3280 void pa_sink_set_port_latency_offset(pa_sink *s, int64_t offset) {
3281 pa_sink_assert_ref(s);
3283 s->port_latency_offset = offset;
3285 if (PA_SINK_IS_LINKED(s->state))
3286 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET, NULL, offset, NULL) == 0);
3288 s->thread_info.port_latency_offset = offset;
3291 /* Called from main context */
3292 size_t pa_sink_get_max_rewind(pa_sink *s) {
3294 pa_assert_ctl_context();
3295 pa_sink_assert_ref(s);
3297 if (!PA_SINK_IS_LINKED(s->state))
3298 return s->thread_info.max_rewind;
3300 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
3305 /* Called from main context */
3306 size_t pa_sink_get_max_request(pa_sink *s) {
3308 pa_sink_assert_ref(s);
3309 pa_assert_ctl_context();
3311 if (!PA_SINK_IS_LINKED(s->state))
3312 return s->thread_info.max_request;
3314 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REQUEST, &r, 0, NULL) == 0);
3319 /* Called from main context */
3320 int pa_sink_set_port(pa_sink *s, const char *name, bool save) {
3321 pa_device_port *port;
3324 pa_sink_assert_ref(s);
3325 pa_assert_ctl_context();
3328 pa_log_debug("set_port() operation not implemented for sink %u \"%s\"", s->index, s->name);
3329 return -PA_ERR_NOTIMPLEMENTED;
3333 return -PA_ERR_NOENTITY;
3335 if (!(port = pa_hashmap_get(s->ports, name)))
3336 return -PA_ERR_NOENTITY;
3338 if (s->active_port == port) {
3339 s->save_port = s->save_port || save;
3343 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
3344 struct sink_message_set_port msg = { .port = port, .ret = 0 };
3345 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
3349 ret = s->set_port(s, port);
3352 return -PA_ERR_NOENTITY;
3354 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3356 pa_log_info("Changed port of sink %u \"%s\" to %s", s->index, s->name, port->name);
3358 s->active_port = port;
3359 s->save_port = save;
3361 pa_sink_set_port_latency_offset(s, s->active_port->latency_offset);
3363 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_CHANGED], s);
3368 bool pa_device_init_icon(pa_proplist *p, bool is_sink) {
3369 const char *ff, *c, *t = NULL, *s = "", *profile, *bus;
3373 if (pa_proplist_contains(p, PA_PROP_DEVICE_ICON_NAME))
3376 if ((ff = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3378 if (pa_streq(ff, "microphone"))
3379 t = "audio-input-microphone";
3380 else if (pa_streq(ff, "webcam"))
3382 else if (pa_streq(ff, "computer"))
3384 else if (pa_streq(ff, "handset"))
3386 else if (pa_streq(ff, "portable"))
3387 t = "multimedia-player";
3388 else if (pa_streq(ff, "tv"))
3389 t = "video-display";
3392 * The following icons are not part of the icon naming spec,
3393 * because Rodney Dawes sucks as the maintainer of that spec.
3395 * http://lists.freedesktop.org/archives/xdg/2009-May/010397.html
3397 else if (pa_streq(ff, "headset"))
3398 t = "audio-headset";
3399 else if (pa_streq(ff, "headphone"))
3400 t = "audio-headphones";
3401 else if (pa_streq(ff, "speaker"))
3402 t = "audio-speakers";
3403 else if (pa_streq(ff, "hands-free"))
3404 t = "audio-handsfree";
3408 if ((c = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3409 if (pa_streq(c, "modem"))
3416 t = "audio-input-microphone";
3419 if ((profile = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3420 if (strstr(profile, "analog"))
3422 else if (strstr(profile, "iec958"))
3424 else if (strstr(profile, "hdmi"))
3428 bus = pa_proplist_gets(p, PA_PROP_DEVICE_BUS);
3430 pa_proplist_setf(p, PA_PROP_DEVICE_ICON_NAME, "%s%s%s%s", t, pa_strempty(s), bus ? "-" : "", pa_strempty(bus));
3435 bool pa_device_init_description(pa_proplist *p, pa_card *card) {
3436 const char *s, *d = NULL, *k;
3439 if (pa_proplist_contains(p, PA_PROP_DEVICE_DESCRIPTION))
3443 if ((s = pa_proplist_gets(card->proplist, PA_PROP_DEVICE_DESCRIPTION)))
3447 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3448 if (pa_streq(s, "internal"))
3449 d = _("Built-in Audio");
3452 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3453 if (pa_streq(s, "modem"))
3457 d = pa_proplist_gets(p, PA_PROP_DEVICE_PRODUCT_NAME);
3462 k = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_DESCRIPTION);
3465 pa_proplist_setf(p, PA_PROP_DEVICE_DESCRIPTION, "%s %s", d, k);
3467 pa_proplist_sets(p, PA_PROP_DEVICE_DESCRIPTION, d);
3472 bool pa_device_init_intended_roles(pa_proplist *p) {
3476 if (pa_proplist_contains(p, PA_PROP_DEVICE_INTENDED_ROLES))
3479 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3480 if (pa_streq(s, "handset") || pa_streq(s, "hands-free")
3481 || pa_streq(s, "headset")) {
3482 pa_proplist_sets(p, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
3489 unsigned pa_device_init_priority(pa_proplist *p) {
3491 unsigned priority = 0;
3495 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS))) {
3497 if (pa_streq(s, "sound"))
3499 else if (!pa_streq(s, "modem"))
3503 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3505 if (pa_streq(s, "internal"))
3507 else if (pa_streq(s, "speaker"))
3509 else if (pa_streq(s, "headphone"))
3513 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_BUS))) {
3515 if (pa_streq(s, "pci"))
3517 else if (pa_streq(s, "usb"))
3519 else if (pa_streq(s, "bluetooth"))
3523 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3525 if (pa_startswith(s, "analog-"))
3527 else if (pa_startswith(s, "iec958-"))
3534 PA_STATIC_FLIST_DECLARE(pa_sink_volume_change, 0, pa_xfree);
3536 /* Called from the IO thread. */
3537 static pa_sink_volume_change *pa_sink_volume_change_new(pa_sink *s) {
3538 pa_sink_volume_change *c;
3539 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_sink_volume_change))))
3540 c = pa_xnew(pa_sink_volume_change, 1);
3542 PA_LLIST_INIT(pa_sink_volume_change, c);
3544 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
3548 /* Called from the IO thread. */
3549 static void pa_sink_volume_change_free(pa_sink_volume_change *c) {
3551 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_sink_volume_change), c) < 0)
3555 /* Called from the IO thread. */
3556 void pa_sink_volume_change_push(pa_sink *s) {
3557 pa_sink_volume_change *c = NULL;
3558 pa_sink_volume_change *nc = NULL;
3559 pa_sink_volume_change *pc = NULL;
3560 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
3562 const char *direction = NULL;
3565 nc = pa_sink_volume_change_new(s);
3567 /* NOTE: There is already more different volumes in pa_sink that I can remember.
3568 * Adding one more volume for HW would get us rid of this, but I am trying
3569 * to survive with the ones we already have. */
3570 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
3572 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
3573 pa_log_debug("Volume not changing");
3574 pa_sink_volume_change_free(nc);
3578 nc->at = pa_sink_get_latency_within_thread(s);
3579 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3581 if (s->thread_info.volume_changes_tail) {
3582 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
3583 /* If volume is going up let's do it a bit late. If it is going
3584 * down let's do it a bit early. */
3585 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
3586 if (nc->at + safety_margin > c->at) {
3587 nc->at += safety_margin;
3592 else if (nc->at - safety_margin > c->at) {
3593 nc->at -= safety_margin;
3601 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
3602 nc->at += safety_margin;
3605 nc->at -= safety_margin;
3608 PA_LLIST_PREPEND(pa_sink_volume_change, s->thread_info.volume_changes, nc);
3611 PA_LLIST_INSERT_AFTER(pa_sink_volume_change, s->thread_info.volume_changes, c, nc);
3614 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
3616 /* We can ignore volume events that came earlier but should happen later than this. */
3617 PA_LLIST_FOREACH_SAFE(c, pc, nc->next) {
3618 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
3619 pa_sink_volume_change_free(c);
3622 s->thread_info.volume_changes_tail = nc;
3625 /* Called from the IO thread. */
3626 static void pa_sink_volume_change_flush(pa_sink *s) {
3627 pa_sink_volume_change *c = s->thread_info.volume_changes;
3629 s->thread_info.volume_changes = NULL;
3630 s->thread_info.volume_changes_tail = NULL;
3632 pa_sink_volume_change *next = c->next;
3633 pa_sink_volume_change_free(c);
3638 /* Called from the IO thread. */
3639 bool pa_sink_volume_change_apply(pa_sink *s, pa_usec_t *usec_to_next) {
3645 if (!s->thread_info.volume_changes || !PA_SINK_IS_LINKED(s->state)) {
3651 pa_assert(s->write_volume);
3653 now = pa_rtclock_now();
3655 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
3656 pa_sink_volume_change *c = s->thread_info.volume_changes;
3657 PA_LLIST_REMOVE(pa_sink_volume_change, s->thread_info.volume_changes, c);
3658 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
3659 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
3661 s->thread_info.current_hw_volume = c->hw_volume;
3662 pa_sink_volume_change_free(c);
3668 if (s->thread_info.volume_changes) {
3670 *usec_to_next = s->thread_info.volume_changes->at - now;
3671 if (pa_log_ratelimit(PA_LOG_DEBUG))
3672 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
3677 s->thread_info.volume_changes_tail = NULL;
3682 /* Called from the IO thread. */
3683 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes) {
3684 /* All the queued volume events later than current latency are shifted to happen earlier. */
3685 pa_sink_volume_change *c;
3686 pa_volume_t prev_vol = pa_cvolume_avg(&s->thread_info.current_hw_volume);
3687 pa_usec_t rewound = pa_bytes_to_usec(nbytes, &s->sample_spec);
3688 pa_usec_t limit = pa_sink_get_latency_within_thread(s);
3690 pa_log_debug("latency = %lld", (long long) limit);
3691 limit += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3693 PA_LLIST_FOREACH(c, s->thread_info.volume_changes) {
3694 pa_usec_t modified_limit = limit;
3695 if (prev_vol > pa_cvolume_avg(&c->hw_volume))
3696 modified_limit -= s->thread_info.volume_change_safety_margin;
3698 modified_limit += s->thread_info.volume_change_safety_margin;
3699 if (c->at > modified_limit) {
3701 if (c->at < modified_limit)
3702 c->at = modified_limit;
3704 prev_vol = pa_cvolume_avg(&c->hw_volume);
3706 pa_sink_volume_change_apply(s, NULL);
3709 /* Called from the main thread */
3710 /* Gets the list of formats supported by the sink. The members and idxset must
3711 * be freed by the caller. */
3712 pa_idxset* pa_sink_get_formats(pa_sink *s) {
3717 if (s->get_formats) {
3718 /* Sink supports format query, all is good */
3719 ret = s->get_formats(s);
3721 /* Sink doesn't support format query, so assume it does PCM */
3722 pa_format_info *f = pa_format_info_new();
3723 f->encoding = PA_ENCODING_PCM;
3725 ret = pa_idxset_new(NULL, NULL);
3726 pa_idxset_put(ret, f, NULL);
3732 /* Called from the main thread */
3733 /* Allows an external source to set what formats a sink supports if the sink
3734 * permits this. The function makes a copy of the formats on success. */
3735 bool pa_sink_set_formats(pa_sink *s, pa_idxset *formats) {
3740 /* Sink supports setting formats -- let's give it a shot */
3741 return s->set_formats(s, formats);
3743 /* Sink doesn't support setting this -- bail out */
3747 /* Called from the main thread */
3748 /* Checks if the sink can accept this format */
3749 bool pa_sink_check_format(pa_sink *s, pa_format_info *f) {
3750 pa_idxset *formats = NULL;
3756 formats = pa_sink_get_formats(s);
3759 pa_format_info *finfo_device;
3762 PA_IDXSET_FOREACH(finfo_device, formats, i) {
3763 if (pa_format_info_is_compatible(finfo_device, f)) {
3769 pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free);
3775 /* Called from the main thread */
3776 /* Calculates the intersection between formats supported by the sink and
3777 * in_formats, and returns these, in the order of the sink's formats. */
3778 pa_idxset* pa_sink_check_formats(pa_sink *s, pa_idxset *in_formats) {
3779 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *sink_formats = NULL;
3780 pa_format_info *f_sink, *f_in;
3785 if (!in_formats || pa_idxset_isempty(in_formats))
3788 sink_formats = pa_sink_get_formats(s);
3790 PA_IDXSET_FOREACH(f_sink, sink_formats, i) {
3791 PA_IDXSET_FOREACH(f_in, in_formats, j) {
3792 if (pa_format_info_is_compatible(f_sink, f_in))
3793 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
3799 pa_idxset_free(sink_formats, (pa_free_cb_t) pa_format_info_free);
3804 /* Called from the main thread. */
3805 void pa_sink_set_reference_volume_direct(pa_sink *s, const pa_cvolume *volume) {
3806 pa_cvolume old_volume;
3807 char old_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3808 char new_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3813 old_volume = s->reference_volume;
3815 if (pa_cvolume_equal(volume, &old_volume))
3818 s->reference_volume = *volume;
3819 pa_log_debug("The reference volume of sink %s changed from %s to %s.", s->name,
3820 pa_cvolume_snprint_verbose(old_volume_str, sizeof(old_volume_str), &old_volume, &s->channel_map,
3821 s->flags & PA_SINK_DECIBEL_VOLUME),
3822 pa_cvolume_snprint_verbose(new_volume_str, sizeof(new_volume_str), volume, &s->channel_map,
3823 s->flags & PA_SINK_DECIBEL_VOLUME));
3825 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3826 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_VOLUME_CHANGED], s);