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_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
346 s->thread_info.volume_change_safety_margin = core->deferred_volume_safety_margin_usec;
347 s->thread_info.volume_change_extra_delay = core->deferred_volume_extra_delay_usec;
348 s->thread_info.port_latency_offset = s->port_latency_offset;
350 /* FIXME: This should probably be moved to pa_sink_put() */
351 pa_assert_se(pa_idxset_put(core->sinks, s, &s->index) >= 0);
354 pa_assert_se(pa_idxset_put(s->card->sinks, s, NULL) >= 0);
356 pt = pa_proplist_to_string_sep(s->proplist, "\n ");
357 pa_log_info("Created sink %u \"%s\" with sample spec %s and channel map %s\n %s",
360 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
361 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map),
365 pa_source_new_data_init(&source_data);
366 pa_source_new_data_set_sample_spec(&source_data, &s->sample_spec);
367 pa_source_new_data_set_channel_map(&source_data, &s->channel_map);
368 pa_source_new_data_set_alternate_sample_rate(&source_data, s->alternate_sample_rate);
369 source_data.name = pa_sprintf_malloc("%s.monitor", name);
370 source_data.driver = data->driver;
371 source_data.module = data->module;
372 source_data.card = data->card;
374 dn = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
375 pa_proplist_setf(source_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Monitor of %s", dn ? dn : s->name);
376 pa_proplist_sets(source_data.proplist, PA_PROP_DEVICE_CLASS, "monitor");
378 s->monitor_source = pa_source_new(core, &source_data,
379 ((flags & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
380 ((flags & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
382 pa_source_new_data_done(&source_data);
384 if (!s->monitor_source) {
390 s->monitor_source->monitor_of = s;
392 pa_source_set_latency_range(s->monitor_source, s->thread_info.min_latency, s->thread_info.max_latency);
393 pa_source_set_fixed_latency(s->monitor_source, s->thread_info.fixed_latency);
394 pa_source_set_max_rewind(s->monitor_source, s->thread_info.max_rewind);
399 /* Called from main context */
400 static int sink_set_state(pa_sink *s, pa_sink_state_t state) {
403 pa_sink_state_t original_state;
406 pa_assert_ctl_context();
408 if (s->state == state)
411 original_state = s->state;
414 (original_state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(state)) ||
415 (PA_SINK_IS_OPENED(original_state) && state == PA_SINK_SUSPENDED);
418 if ((ret = s->set_state(s, state)) < 0)
422 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL)) < 0) {
425 s->set_state(s, original_state);
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_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_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_core_update_default_sink(s->core);
665 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_NEW, s->index);
666 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PUT], s);
669 /* Called from main context */
670 void pa_sink_unlink(pa_sink* s) {
672 pa_sink_input *i, PA_UNUSED *j = NULL;
674 pa_sink_assert_ref(s);
675 pa_assert_ctl_context();
677 /* Please note that pa_sink_unlink() does more than simply
678 * reversing pa_sink_put(). It also undoes the registrations
679 * already done in pa_sink_new()! */
681 if (s->unlink_requested)
684 s->unlink_requested = true;
686 linked = PA_SINK_IS_LINKED(s->state);
689 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK], s);
691 if (s->state != PA_SINK_UNLINKED)
692 pa_namereg_unregister(s->core, s->name);
693 pa_idxset_remove_by_data(s->core->sinks, s, NULL);
695 if (s == s->core->configured_default_sink)
696 pa_core_set_configured_default_sink(s->core, NULL);
698 pa_core_update_default_sink(s->core);
701 pa_idxset_remove_by_data(s->card->sinks, s, NULL);
703 while ((i = pa_idxset_first(s->inputs, NULL))) {
705 pa_sink_input_kill(i);
710 sink_set_state(s, PA_SINK_UNLINKED);
712 s->state = PA_SINK_UNLINKED;
716 if (s->monitor_source)
717 pa_source_unlink(s->monitor_source);
720 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
721 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], s);
725 /* Called from main context */
726 static void sink_free(pa_object *o) {
727 pa_sink *s = PA_SINK(o);
730 pa_assert_ctl_context();
731 pa_assert(pa_sink_refcnt(s) == 0);
732 pa_assert(!PA_SINK_IS_LINKED(s->state));
734 pa_log_info("Freeing sink %u \"%s\"", s->index, s->name);
736 pa_sink_volume_change_flush(s);
738 if (s->monitor_source) {
739 pa_source_unref(s->monitor_source);
740 s->monitor_source = NULL;
743 pa_idxset_free(s->inputs, NULL);
744 pa_hashmap_free(s->thread_info.inputs);
746 if (s->silence.memblock)
747 pa_memblock_unref(s->silence.memblock);
753 pa_proplist_free(s->proplist);
756 pa_hashmap_free(s->ports);
761 /* Called from main context, and not while the IO thread is active, please */
762 void pa_sink_set_asyncmsgq(pa_sink *s, pa_asyncmsgq *q) {
763 pa_sink_assert_ref(s);
764 pa_assert_ctl_context();
768 if (s->monitor_source)
769 pa_source_set_asyncmsgq(s->monitor_source, q);
772 /* Called from main context, and not while the IO thread is active, please */
773 void pa_sink_update_flags(pa_sink *s, pa_sink_flags_t mask, pa_sink_flags_t value) {
774 pa_sink_flags_t old_flags;
775 pa_sink_input *input;
778 pa_sink_assert_ref(s);
779 pa_assert_ctl_context();
781 /* For now, allow only a minimal set of flags to be changed. */
782 pa_assert((mask & ~(PA_SINK_DYNAMIC_LATENCY|PA_SINK_LATENCY)) == 0);
784 old_flags = s->flags;
785 s->flags = (s->flags & ~mask) | (value & mask);
787 if (s->flags == old_flags)
790 if ((s->flags & PA_SINK_LATENCY) != (old_flags & PA_SINK_LATENCY))
791 pa_log_debug("Sink %s: LATENCY flag %s.", s->name, (s->flags & PA_SINK_LATENCY) ? "enabled" : "disabled");
793 if ((s->flags & PA_SINK_DYNAMIC_LATENCY) != (old_flags & PA_SINK_DYNAMIC_LATENCY))
794 pa_log_debug("Sink %s: DYNAMIC_LATENCY flag %s.",
795 s->name, (s->flags & PA_SINK_DYNAMIC_LATENCY) ? "enabled" : "disabled");
797 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
798 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_FLAGS_CHANGED], s);
800 if (s->monitor_source)
801 pa_source_update_flags(s->monitor_source,
802 ((mask & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
803 ((mask & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0),
804 ((value & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
805 ((value & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
807 PA_IDXSET_FOREACH(input, s->inputs, idx) {
808 if (input->origin_sink)
809 pa_sink_update_flags(input->origin_sink, mask, value);
813 /* Called from IO context, or before _put() from main context */
814 void pa_sink_set_rtpoll(pa_sink *s, pa_rtpoll *p) {
815 pa_sink_assert_ref(s);
816 pa_sink_assert_io_context(s);
818 s->thread_info.rtpoll = p;
820 if (s->monitor_source)
821 pa_source_set_rtpoll(s->monitor_source, p);
824 /* Called from main context */
825 int pa_sink_update_status(pa_sink*s) {
826 pa_sink_assert_ref(s);
827 pa_assert_ctl_context();
828 pa_assert(PA_SINK_IS_LINKED(s->state));
830 if (s->state == PA_SINK_SUSPENDED)
833 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
836 /* Called from any context - must be threadsafe */
837 void pa_sink_set_mixer_dirty(pa_sink *s, bool is_dirty) {
838 pa_atomic_store(&s->mixer_dirty, is_dirty ? 1 : 0);
841 /* Called from main context */
842 int pa_sink_suspend(pa_sink *s, bool suspend, pa_suspend_cause_t cause) {
843 pa_sink_assert_ref(s);
844 pa_assert_ctl_context();
845 pa_assert(PA_SINK_IS_LINKED(s->state));
846 pa_assert(cause != 0);
849 s->suspend_cause |= cause;
850 s->monitor_source->suspend_cause |= cause;
852 s->suspend_cause &= ~cause;
853 s->monitor_source->suspend_cause &= ~cause;
856 if (!(s->suspend_cause & PA_SUSPEND_SESSION) && (pa_atomic_load(&s->mixer_dirty) != 0)) {
857 /* This might look racy but isn't: If somebody sets mixer_dirty exactly here,
858 it'll be handled just fine. */
859 pa_sink_set_mixer_dirty(s, false);
860 pa_log_debug("Mixer is now accessible. Updating alsa mixer settings.");
861 if (s->active_port && s->set_port) {
862 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
863 struct sink_message_set_port msg = { .port = s->active_port, .ret = 0 };
864 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
867 s->set_port(s, s->active_port);
877 if ((pa_sink_get_state(s) == PA_SINK_SUSPENDED) == !!s->suspend_cause)
880 pa_log_debug("Suspend cause of sink %s is 0x%04x, %s", s->name, s->suspend_cause, s->suspend_cause ? "suspending" : "resuming");
882 if (s->suspend_cause)
883 return sink_set_state(s, PA_SINK_SUSPENDED);
885 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
888 /* Called from main context */
889 pa_queue *pa_sink_move_all_start(pa_sink *s, pa_queue *q) {
890 pa_sink_input *i, *n;
893 pa_sink_assert_ref(s);
894 pa_assert_ctl_context();
895 pa_assert(PA_SINK_IS_LINKED(s->state));
900 for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = n) {
901 n = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx));
903 pa_sink_input_ref(i);
905 if (pa_sink_input_start_move(i) >= 0)
908 pa_sink_input_unref(i);
914 /* Called from main context */
915 void pa_sink_move_all_finish(pa_sink *s, pa_queue *q, bool save) {
918 pa_sink_assert_ref(s);
919 pa_assert_ctl_context();
920 pa_assert(PA_SINK_IS_LINKED(s->state));
923 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
924 if (pa_sink_input_finish_move(i, s, save) < 0)
925 pa_sink_input_fail_move(i);
927 pa_sink_input_unref(i);
930 pa_queue_free(q, NULL);
933 /* Called from main context */
934 void pa_sink_move_all_fail(pa_queue *q) {
937 pa_assert_ctl_context();
940 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
941 pa_sink_input_fail_move(i);
942 pa_sink_input_unref(i);
945 pa_queue_free(q, NULL);
948 /* Called from IO thread context */
949 size_t pa_sink_process_input_underruns(pa_sink *s, size_t left_to_play) {
954 pa_sink_assert_ref(s);
955 pa_sink_assert_io_context(s);
957 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
958 size_t uf = i->thread_info.underrun_for_sink;
960 /* Propagate down the filter tree */
961 if (i->origin_sink) {
962 size_t filter_result, left_to_play_origin;
964 /* The recursive call works in the origin sink domain ... */
965 left_to_play_origin = pa_convert_size(left_to_play, &i->sink->sample_spec, &i->origin_sink->sample_spec);
967 /* .. and returns the time to sleep before waking up. We need the
968 * underrun duration for comparisons, so we undo the subtraction on
969 * the return value... */
970 filter_result = left_to_play_origin - pa_sink_process_input_underruns(i->origin_sink, left_to_play_origin);
972 /* ... and convert it back to the master sink domain */
973 filter_result = pa_convert_size(filter_result, &i->origin_sink->sample_spec, &i->sink->sample_spec);
975 /* Remember the longest underrun so far */
976 if (filter_result > result)
977 result = filter_result;
981 /* No underrun here, move on */
983 } else if (uf >= left_to_play) {
984 /* The sink has possibly consumed all the data the sink input provided */
985 pa_sink_input_process_underrun(i);
986 } else if (uf > result) {
987 /* Remember the longest underrun so far */
993 pa_log_debug("%s: Found underrun %ld bytes ago (%ld bytes ahead in playback buffer)", s->name,
994 (long) result, (long) left_to_play - result);
995 return left_to_play - result;
998 /* Called from IO thread context */
999 void pa_sink_process_rewind(pa_sink *s, size_t nbytes) {
1003 pa_sink_assert_ref(s);
1004 pa_sink_assert_io_context(s);
1005 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1007 /* If nobody requested this and this is actually no real rewind
1008 * then we can short cut this. Please note that this means that
1009 * not all rewind requests triggered upstream will always be
1010 * translated in actual requests! */
1011 if (!s->thread_info.rewind_requested && nbytes <= 0)
1014 s->thread_info.rewind_nbytes = 0;
1015 s->thread_info.rewind_requested = false;
1018 pa_log_debug("Processing rewind...");
1019 if (s->flags & PA_SINK_DEFERRED_VOLUME)
1020 pa_sink_volume_change_rewind(s, nbytes);
1023 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1024 pa_sink_input_assert_ref(i);
1025 pa_sink_input_process_rewind(i, nbytes);
1029 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1030 pa_source_process_rewind(s->monitor_source, nbytes);
1034 /* Called from IO thread context */
1035 static unsigned fill_mix_info(pa_sink *s, size_t *length, pa_mix_info *info, unsigned maxinfo) {
1039 size_t mixlength = *length;
1041 pa_sink_assert_ref(s);
1042 pa_sink_assert_io_context(s);
1045 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)) && maxinfo > 0) {
1046 pa_sink_input_assert_ref(i);
1048 pa_sink_input_peek(i, *length, &info->chunk, &info->volume);
1050 if (mixlength == 0 || info->chunk.length < mixlength)
1051 mixlength = info->chunk.length;
1053 if (pa_memblock_is_silence(info->chunk.memblock)) {
1054 pa_memblock_unref(info->chunk.memblock);
1058 info->userdata = pa_sink_input_ref(i);
1060 pa_assert(info->chunk.memblock);
1061 pa_assert(info->chunk.length > 0);
1069 *length = mixlength;
1074 /* Called from IO thread context */
1075 static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned n, pa_memchunk *result) {
1079 unsigned n_unreffed = 0;
1081 pa_sink_assert_ref(s);
1082 pa_sink_assert_io_context(s);
1084 pa_assert(result->memblock);
1085 pa_assert(result->length > 0);
1087 /* We optimize for the case where the order of the inputs has not changed */
1089 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1091 pa_mix_info* m = NULL;
1093 pa_sink_input_assert_ref(i);
1095 /* Let's try to find the matching entry info the pa_mix_info array */
1096 for (j = 0; j < n; j ++) {
1098 if (info[p].userdata == i) {
1108 /* Drop read data */
1109 pa_sink_input_drop(i, result->length);
1111 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state)) {
1113 if (pa_hashmap_size(i->thread_info.direct_outputs) > 0) {
1114 void *ostate = NULL;
1115 pa_source_output *o;
1118 if (m && m->chunk.memblock) {
1120 pa_memblock_ref(c.memblock);
1121 pa_assert(result->length <= c.length);
1122 c.length = result->length;
1124 pa_memchunk_make_writable(&c, 0);
1125 pa_volume_memchunk(&c, &s->sample_spec, &m->volume);
1128 pa_memblock_ref(c.memblock);
1129 pa_assert(result->length <= c.length);
1130 c.length = result->length;
1133 while ((o = pa_hashmap_iterate(i->thread_info.direct_outputs, &ostate, NULL))) {
1134 pa_source_output_assert_ref(o);
1135 pa_assert(o->direct_on_input == i);
1136 pa_source_post_direct(s->monitor_source, o, &c);
1139 pa_memblock_unref(c.memblock);
1144 if (m->chunk.memblock) {
1145 pa_memblock_unref(m->chunk.memblock);
1146 pa_memchunk_reset(&m->chunk);
1149 pa_sink_input_unref(m->userdata);
1156 /* Now drop references to entries that are included in the
1157 * pa_mix_info array but don't exist anymore */
1159 if (n_unreffed < n) {
1160 for (; n > 0; info++, n--) {
1162 pa_sink_input_unref(info->userdata);
1163 if (info->chunk.memblock)
1164 pa_memblock_unref(info->chunk.memblock);
1168 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1169 pa_source_post(s->monitor_source, result);
1172 /* Called from IO thread context */
1173 void pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) {
1174 pa_mix_info info[MAX_MIX_CHANNELS];
1176 size_t block_size_max;
1178 pa_sink_assert_ref(s);
1179 pa_sink_assert_io_context(s);
1180 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1181 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1184 pa_assert(!s->thread_info.rewind_requested);
1185 pa_assert(s->thread_info.rewind_nbytes == 0);
1187 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1188 result->memblock = pa_memblock_ref(s->silence.memblock);
1189 result->index = s->silence.index;
1190 result->length = PA_MIN(s->silence.length, length);
1197 length = pa_frame_align(MIX_BUFFER_LENGTH, &s->sample_spec);
1199 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1200 if (length > block_size_max)
1201 length = pa_frame_align(block_size_max, &s->sample_spec);
1203 pa_assert(length > 0);
1205 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1209 *result = s->silence;
1210 pa_memblock_ref(result->memblock);
1212 if (result->length > length)
1213 result->length = length;
1215 } else if (n == 1) {
1218 *result = info[0].chunk;
1219 pa_memblock_ref(result->memblock);
1221 if (result->length > length)
1222 result->length = length;
1224 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1226 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume)) {
1227 pa_memblock_unref(result->memblock);
1228 pa_silence_memchunk_get(&s->core->silence_cache,
1233 } else if (!pa_cvolume_is_norm(&volume)) {
1234 pa_memchunk_make_writable(result, 0);
1235 pa_volume_memchunk(result, &s->sample_spec, &volume);
1239 result->memblock = pa_memblock_new(s->core->mempool, length);
1241 ptr = pa_memblock_acquire(result->memblock);
1242 result->length = pa_mix(info, n,
1245 &s->thread_info.soft_volume,
1246 s->thread_info.soft_muted);
1247 pa_memblock_release(result->memblock);
1252 inputs_drop(s, info, n, result);
1257 /* Called from IO thread context */
1258 void pa_sink_render_into(pa_sink*s, pa_memchunk *target) {
1259 pa_mix_info info[MAX_MIX_CHANNELS];
1261 size_t length, block_size_max;
1263 pa_sink_assert_ref(s);
1264 pa_sink_assert_io_context(s);
1265 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1267 pa_assert(target->memblock);
1268 pa_assert(target->length > 0);
1269 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1271 pa_assert(!s->thread_info.rewind_requested);
1272 pa_assert(s->thread_info.rewind_nbytes == 0);
1274 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1275 pa_silence_memchunk(target, &s->sample_spec);
1281 length = target->length;
1282 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1283 if (length > block_size_max)
1284 length = pa_frame_align(block_size_max, &s->sample_spec);
1286 pa_assert(length > 0);
1288 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1291 if (target->length > length)
1292 target->length = length;
1294 pa_silence_memchunk(target, &s->sample_spec);
1295 } else if (n == 1) {
1298 if (target->length > length)
1299 target->length = length;
1301 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1303 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume))
1304 pa_silence_memchunk(target, &s->sample_spec);
1308 vchunk = info[0].chunk;
1309 pa_memblock_ref(vchunk.memblock);
1311 if (vchunk.length > length)
1312 vchunk.length = length;
1314 if (!pa_cvolume_is_norm(&volume)) {
1315 pa_memchunk_make_writable(&vchunk, 0);
1316 pa_volume_memchunk(&vchunk, &s->sample_spec, &volume);
1319 pa_memchunk_memcpy(target, &vchunk);
1320 pa_memblock_unref(vchunk.memblock);
1326 ptr = pa_memblock_acquire(target->memblock);
1328 target->length = pa_mix(info, n,
1329 (uint8_t*) ptr + target->index, length,
1331 &s->thread_info.soft_volume,
1332 s->thread_info.soft_muted);
1334 pa_memblock_release(target->memblock);
1337 inputs_drop(s, info, n, target);
1342 /* Called from IO thread context */
1343 void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
1347 pa_sink_assert_ref(s);
1348 pa_sink_assert_io_context(s);
1349 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1351 pa_assert(target->memblock);
1352 pa_assert(target->length > 0);
1353 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1355 pa_assert(!s->thread_info.rewind_requested);
1356 pa_assert(s->thread_info.rewind_nbytes == 0);
1358 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1359 pa_silence_memchunk(target, &s->sample_spec);
1372 pa_sink_render_into(s, &chunk);
1381 /* Called from IO thread context */
1382 void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) {
1383 pa_sink_assert_ref(s);
1384 pa_sink_assert_io_context(s);
1385 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1386 pa_assert(length > 0);
1387 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1390 pa_assert(!s->thread_info.rewind_requested);
1391 pa_assert(s->thread_info.rewind_nbytes == 0);
1395 pa_sink_render(s, length, result);
1397 if (result->length < length) {
1400 pa_memchunk_make_writable(result, length);
1402 chunk.memblock = result->memblock;
1403 chunk.index = result->index + result->length;
1404 chunk.length = length - result->length;
1406 pa_sink_render_into_full(s, &chunk);
1408 result->length = length;
1414 /* Called from main thread */
1415 int pa_sink_update_rate(pa_sink *s, uint32_t rate, bool passthrough) {
1417 uint32_t desired_rate;
1418 uint32_t default_rate = s->default_sample_rate;
1419 uint32_t alternate_rate = s->alternate_sample_rate;
1422 bool default_rate_is_usable = false;
1423 bool alternate_rate_is_usable = false;
1424 bool avoid_resampling = s->core->avoid_resampling;
1426 if (rate == s->sample_spec.rate)
1429 if (!s->update_rate)
1432 if (PA_UNLIKELY(default_rate == alternate_rate && !passthrough && !avoid_resampling)) {
1433 pa_log_debug("Default and alternate sample rates are the same, so there is no point in switching.");
1437 if (PA_SINK_IS_RUNNING(s->state)) {
1438 pa_log_info("Cannot update rate, SINK_IS_RUNNING, will keep using %u Hz",
1439 s->sample_spec.rate);
1443 if (s->monitor_source) {
1444 if (PA_SOURCE_IS_RUNNING(s->monitor_source->state) == true) {
1445 pa_log_info("Cannot update rate, monitor source is RUNNING");
1450 if (PA_UNLIKELY(!pa_sample_rate_valid(rate)))
1454 /* We have to try to use the sink input rate */
1455 desired_rate = rate;
1457 } else if (avoid_resampling && (rate >= default_rate || rate >= alternate_rate)) {
1458 /* We just try to set the sink input's sample rate if it's not too low */
1459 desired_rate = rate;
1461 } else if (default_rate == rate || alternate_rate == rate) {
1462 /* We can directly try to use this rate */
1463 desired_rate = rate;
1466 /* See if we can pick a rate that results in less resampling effort */
1467 if (default_rate % 11025 == 0 && rate % 11025 == 0)
1468 default_rate_is_usable = true;
1469 if (default_rate % 4000 == 0 && rate % 4000 == 0)
1470 default_rate_is_usable = true;
1471 if (alternate_rate && alternate_rate % 11025 == 0 && rate % 11025 == 0)
1472 alternate_rate_is_usable = true;
1473 if (alternate_rate && alternate_rate % 4000 == 0 && rate % 4000 == 0)
1474 alternate_rate_is_usable = true;
1476 if (alternate_rate_is_usable && !default_rate_is_usable)
1477 desired_rate = alternate_rate;
1479 desired_rate = default_rate;
1482 if (desired_rate == s->sample_spec.rate)
1485 if (!passthrough && pa_sink_used_by(s) > 0)
1488 pa_log_debug("Suspending sink %s due to changing the sample rate.", s->name);
1489 pa_sink_suspend(s, true, PA_SUSPEND_INTERNAL);
1491 if (s->update_rate(s, desired_rate) >= 0) {
1492 /* update monitor source as well */
1493 if (s->monitor_source && !passthrough)
1494 pa_source_update_rate(s->monitor_source, desired_rate, false);
1495 pa_log_info("Changed sampling rate successfully");
1497 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1498 if (i->state == PA_SINK_INPUT_CORKED)
1499 pa_sink_input_update_rate(i);
1505 pa_sink_suspend(s, false, PA_SUSPEND_INTERNAL);
1510 /* Called from main thread */
1511 pa_usec_t pa_sink_get_latency(pa_sink *s) {
1514 pa_sink_assert_ref(s);
1515 pa_assert_ctl_context();
1516 pa_assert(PA_SINK_IS_LINKED(s->state));
1518 /* The returned value is supposed to be in the time domain of the sound card! */
1520 if (s->state == PA_SINK_SUSPENDED)
1523 if (!(s->flags & PA_SINK_LATENCY))
1526 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1528 /* the return value is unsigned, so check that the offset can be added to usec without
1530 if (-s->port_latency_offset <= usec)
1531 usec += s->port_latency_offset;
1535 return (pa_usec_t)usec;
1538 /* Called from IO thread */
1539 int64_t pa_sink_get_latency_within_thread(pa_sink *s, bool allow_negative) {
1543 pa_sink_assert_ref(s);
1544 pa_sink_assert_io_context(s);
1545 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1547 /* The returned value is supposed to be in the time domain of the sound card! */
1549 if (s->thread_info.state == PA_SINK_SUSPENDED)
1552 if (!(s->flags & PA_SINK_LATENCY))
1555 o = PA_MSGOBJECT(s);
1557 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1559 o->process_msg(o, PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL);
1561 /* If allow_negative is false, the call should only return positive values, */
1562 usec += s->thread_info.port_latency_offset;
1563 if (!allow_negative && usec < 0)
1569 /* Called from the main thread (and also from the IO thread while the main
1570 * thread is waiting).
1572 * When a sink uses volume sharing, it never has the PA_SINK_FLAT_VOLUME flag
1573 * set. Instead, flat volume mode is detected by checking whether the root sink
1574 * has the flag set. */
1575 bool pa_sink_flat_volume_enabled(pa_sink *s) {
1576 pa_sink_assert_ref(s);
1578 s = pa_sink_get_master(s);
1581 return (s->flags & PA_SINK_FLAT_VOLUME);
1586 /* Called from the main thread (and also from the IO thread while the main
1587 * thread is waiting). */
1588 pa_sink *pa_sink_get_master(pa_sink *s) {
1589 pa_sink_assert_ref(s);
1591 while (s && (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1592 if (PA_UNLIKELY(!s->input_to_master))
1595 s = s->input_to_master->sink;
1601 /* Called from main context */
1602 bool pa_sink_is_filter(pa_sink *s) {
1603 pa_sink_assert_ref(s);
1605 return (s->input_to_master != NULL);
1608 /* Called from main context */
1609 bool pa_sink_is_passthrough(pa_sink *s) {
1610 pa_sink_input *alt_i;
1613 pa_sink_assert_ref(s);
1615 /* one and only one PASSTHROUGH input can possibly be connected */
1616 if (pa_idxset_size(s->inputs) == 1) {
1617 alt_i = pa_idxset_first(s->inputs, &idx);
1619 if (pa_sink_input_is_passthrough(alt_i))
1626 /* Called from main context */
1627 void pa_sink_enter_passthrough(pa_sink *s) {
1630 /* disable the monitor in passthrough mode */
1631 if (s->monitor_source) {
1632 pa_log_debug("Suspending monitor source %s, because the sink is entering the passthrough mode.", s->monitor_source->name);
1633 pa_source_suspend(s->monitor_source, true, PA_SUSPEND_PASSTHROUGH);
1636 /* set the volume to NORM */
1637 s->saved_volume = *pa_sink_get_volume(s, true);
1638 s->saved_save_volume = s->save_volume;
1640 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1641 pa_sink_set_volume(s, &volume, true, false);
1644 /* Called from main context */
1645 void pa_sink_leave_passthrough(pa_sink *s) {
1646 /* Unsuspend monitor */
1647 if (s->monitor_source) {
1648 pa_log_debug("Resuming monitor source %s, because the sink is leaving the passthrough mode.", s->monitor_source->name);
1649 pa_source_suspend(s->monitor_source, false, PA_SUSPEND_PASSTHROUGH);
1652 /* Restore sink volume to what it was before we entered passthrough mode */
1653 pa_sink_set_volume(s, &s->saved_volume, true, s->saved_save_volume);
1655 pa_cvolume_init(&s->saved_volume);
1656 s->saved_save_volume = false;
1659 /* Called from main context. */
1660 static void compute_reference_ratio(pa_sink_input *i) {
1662 pa_cvolume remapped;
1666 pa_assert(pa_sink_flat_volume_enabled(i->sink));
1669 * Calculates the reference ratio from the sink's reference
1670 * volume. This basically calculates:
1672 * i->reference_ratio = i->volume / i->sink->reference_volume
1675 remapped = i->sink->reference_volume;
1676 pa_cvolume_remap(&remapped, &i->sink->channel_map, &i->channel_map);
1678 ratio = i->reference_ratio;
1680 for (c = 0; c < i->sample_spec.channels; c++) {
1682 /* We don't update when the sink volume is 0 anyway */
1683 if (remapped.values[c] <= PA_VOLUME_MUTED)
1686 /* Don't update the reference ratio unless necessary */
1687 if (pa_sw_volume_multiply(
1689 remapped.values[c]) == i->volume.values[c])
1692 ratio.values[c] = pa_sw_volume_divide(
1693 i->volume.values[c],
1694 remapped.values[c]);
1697 pa_sink_input_set_reference_ratio(i, &ratio);
1700 /* Called from main context. Only called for the root sink in volume sharing
1701 * cases, except for internal recursive calls. */
1702 static void compute_reference_ratios(pa_sink *s) {
1706 pa_sink_assert_ref(s);
1707 pa_assert_ctl_context();
1708 pa_assert(PA_SINK_IS_LINKED(s->state));
1709 pa_assert(pa_sink_flat_volume_enabled(s));
1711 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1712 compute_reference_ratio(i);
1714 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1715 compute_reference_ratios(i->origin_sink);
1719 /* Called from main context. Only called for the root sink in volume sharing
1720 * cases, except for internal recursive calls. */
1721 static void compute_real_ratios(pa_sink *s) {
1725 pa_sink_assert_ref(s);
1726 pa_assert_ctl_context();
1727 pa_assert(PA_SINK_IS_LINKED(s->state));
1728 pa_assert(pa_sink_flat_volume_enabled(s));
1730 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1732 pa_cvolume remapped;
1734 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1735 /* The origin sink uses volume sharing, so this input's real ratio
1736 * is handled as a special case - the real ratio must be 0 dB, and
1737 * as a result i->soft_volume must equal i->volume_factor. */
1738 pa_cvolume_reset(&i->real_ratio, i->real_ratio.channels);
1739 i->soft_volume = i->volume_factor;
1741 compute_real_ratios(i->origin_sink);
1747 * This basically calculates:
1749 * i->real_ratio := i->volume / s->real_volume
1750 * i->soft_volume := i->real_ratio * i->volume_factor
1753 remapped = s->real_volume;
1754 pa_cvolume_remap(&remapped, &s->channel_map, &i->channel_map);
1756 i->real_ratio.channels = i->sample_spec.channels;
1757 i->soft_volume.channels = i->sample_spec.channels;
1759 for (c = 0; c < i->sample_spec.channels; c++) {
1761 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1762 /* We leave i->real_ratio untouched */
1763 i->soft_volume.values[c] = PA_VOLUME_MUTED;
1767 /* Don't lose accuracy unless necessary */
1768 if (pa_sw_volume_multiply(
1769 i->real_ratio.values[c],
1770 remapped.values[c]) != i->volume.values[c])
1772 i->real_ratio.values[c] = pa_sw_volume_divide(
1773 i->volume.values[c],
1774 remapped.values[c]);
1776 i->soft_volume.values[c] = pa_sw_volume_multiply(
1777 i->real_ratio.values[c],
1778 i->volume_factor.values[c]);
1781 /* We don't copy the soft_volume to the thread_info data
1782 * here. That must be done by the caller */
1786 static pa_cvolume *cvolume_remap_minimal_impact(
1788 const pa_cvolume *template,
1789 const pa_channel_map *from,
1790 const pa_channel_map *to) {
1795 pa_assert(template);
1798 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1799 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1801 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1802 * mapping from sink input to sink volumes:
1804 * If template is a possible remapping from v it is used instead
1805 * of remapping anew.
1807 * If the channel maps don't match we set an all-channel volume on
1808 * the sink to ensure that changing a volume on one stream has no
1809 * effect that cannot be compensated for in another stream that
1810 * does not have the same channel map as the sink. */
1812 if (pa_channel_map_equal(from, to))
1816 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1821 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1825 /* Called from main thread. Only called for the root sink in volume sharing
1826 * cases, except for internal recursive calls. */
1827 static void get_maximum_input_volume(pa_sink *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1831 pa_sink_assert_ref(s);
1832 pa_assert(max_volume);
1833 pa_assert(channel_map);
1834 pa_assert(pa_sink_flat_volume_enabled(s));
1836 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1837 pa_cvolume remapped;
1839 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1840 get_maximum_input_volume(i->origin_sink, max_volume, channel_map);
1842 /* Ignore this input. The origin sink uses volume sharing, so this
1843 * input's volume will be set to be equal to the root sink's real
1844 * volume. Obviously this input's current volume must not then
1845 * affect what the root sink's real volume will be. */
1849 remapped = i->volume;
1850 cvolume_remap_minimal_impact(&remapped, max_volume, &i->channel_map, channel_map);
1851 pa_cvolume_merge(max_volume, max_volume, &remapped);
1855 /* Called from main thread. Only called for the root sink in volume sharing
1856 * cases, except for internal recursive calls. */
1857 static bool has_inputs(pa_sink *s) {
1861 pa_sink_assert_ref(s);
1863 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1864 if (!i->origin_sink || !(i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || has_inputs(i->origin_sink))
1871 /* Called from main thread. Only called for the root sink in volume sharing
1872 * cases, except for internal recursive calls. */
1873 static void update_real_volume(pa_sink *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1877 pa_sink_assert_ref(s);
1878 pa_assert(new_volume);
1879 pa_assert(channel_map);
1881 s->real_volume = *new_volume;
1882 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1884 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1885 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1886 if (pa_sink_flat_volume_enabled(s)) {
1887 pa_cvolume new_input_volume;
1889 /* Follow the root sink's real volume. */
1890 new_input_volume = *new_volume;
1891 pa_cvolume_remap(&new_input_volume, channel_map, &i->channel_map);
1892 pa_sink_input_set_volume_direct(i, &new_input_volume);
1893 compute_reference_ratio(i);
1896 update_real_volume(i->origin_sink, new_volume, channel_map);
1901 /* Called from main thread. Only called for the root sink in shared volume
1903 static void compute_real_volume(pa_sink *s) {
1904 pa_sink_assert_ref(s);
1905 pa_assert_ctl_context();
1906 pa_assert(PA_SINK_IS_LINKED(s->state));
1907 pa_assert(pa_sink_flat_volume_enabled(s));
1908 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
1910 /* This determines the maximum volume of all streams and sets
1911 * s->real_volume accordingly. */
1913 if (!has_inputs(s)) {
1914 /* In the special case that we have no sink inputs we leave the
1915 * volume unmodified. */
1916 update_real_volume(s, &s->reference_volume, &s->channel_map);
1920 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1922 /* First let's determine the new maximum volume of all inputs
1923 * connected to this sink */
1924 get_maximum_input_volume(s, &s->real_volume, &s->channel_map);
1925 update_real_volume(s, &s->real_volume, &s->channel_map);
1927 /* Then, let's update the real ratios/soft volumes of all inputs
1928 * connected to this sink */
1929 compute_real_ratios(s);
1932 /* Called from main thread. Only called for the root sink in shared volume
1933 * cases, except for internal recursive calls. */
1934 static void propagate_reference_volume(pa_sink *s) {
1938 pa_sink_assert_ref(s);
1939 pa_assert_ctl_context();
1940 pa_assert(PA_SINK_IS_LINKED(s->state));
1941 pa_assert(pa_sink_flat_volume_enabled(s));
1943 /* This is called whenever the sink volume changes that is not
1944 * caused by a sink input volume change. We need to fix up the
1945 * sink input volumes accordingly */
1947 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1948 pa_cvolume new_volume;
1950 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1951 propagate_reference_volume(i->origin_sink);
1953 /* Since the origin sink uses volume sharing, this input's volume
1954 * needs to be updated to match the root sink's real volume, but
1955 * that will be done later in update_shared_real_volume(). */
1959 /* This basically calculates:
1961 * i->volume := s->reference_volume * i->reference_ratio */
1963 new_volume = s->reference_volume;
1964 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
1965 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
1966 pa_sink_input_set_volume_direct(i, &new_volume);
1970 /* Called from main thread. Only called for the root sink in volume sharing
1971 * cases, except for internal recursive calls. The return value indicates
1972 * whether any reference volume actually changed. */
1973 static bool update_reference_volume(pa_sink *s, const pa_cvolume *v, const pa_channel_map *channel_map, bool save) {
1975 bool reference_volume_changed;
1979 pa_sink_assert_ref(s);
1980 pa_assert(PA_SINK_IS_LINKED(s->state));
1982 pa_assert(channel_map);
1983 pa_assert(pa_cvolume_valid(v));
1986 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
1988 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
1989 pa_sink_set_reference_volume_direct(s, &volume);
1991 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
1993 if (!reference_volume_changed && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1994 /* If the root sink's volume doesn't change, then there can't be any
1995 * changes in the other sinks in the sink tree either.
1997 * It's probably theoretically possible that even if the root sink's
1998 * volume changes slightly, some filter sink doesn't change its volume
1999 * due to rounding errors. If that happens, we still want to propagate
2000 * the changed root sink volume to the sinks connected to the
2001 * intermediate sink that didn't change its volume. This theoretical
2002 * possibility is the reason why we have that !(s->flags &
2003 * PA_SINK_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
2004 * notice even if we returned here false always if
2005 * reference_volume_changed is false. */
2008 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2009 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2010 update_reference_volume(i->origin_sink, v, channel_map, false);
2016 /* Called from main thread */
2017 void pa_sink_set_volume(
2019 const pa_cvolume *volume,
2023 pa_cvolume new_reference_volume;
2026 pa_sink_assert_ref(s);
2027 pa_assert_ctl_context();
2028 pa_assert(PA_SINK_IS_LINKED(s->state));
2029 pa_assert(!volume || pa_cvolume_valid(volume));
2030 pa_assert(volume || pa_sink_flat_volume_enabled(s));
2031 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
2033 /* make sure we don't change the volume when a PASSTHROUGH input is connected ...
2034 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
2035 if (pa_sink_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
2036 pa_log_warn("Cannot change volume, Sink is connected to PASSTHROUGH input");
2040 /* In case of volume sharing, the volume is set for the root sink first,
2041 * from which it's then propagated to the sharing sinks. */
2042 root_sink = pa_sink_get_master(s);
2044 if (PA_UNLIKELY(!root_sink))
2047 /* As a special exception we accept mono volumes on all sinks --
2048 * even on those with more complex channel maps */
2051 if (pa_cvolume_compatible(volume, &s->sample_spec))
2052 new_reference_volume = *volume;
2054 new_reference_volume = s->reference_volume;
2055 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
2058 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2060 if (update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save)) {
2061 if (pa_sink_flat_volume_enabled(root_sink)) {
2062 /* OK, propagate this volume change back to the inputs */
2063 propagate_reference_volume(root_sink);
2065 /* And now recalculate the real volume */
2066 compute_real_volume(root_sink);
2068 update_real_volume(root_sink, &root_sink->reference_volume, &root_sink->channel_map);
2072 /* If volume is NULL we synchronize the sink's real and
2073 * reference volumes with the stream volumes. */
2075 pa_assert(pa_sink_flat_volume_enabled(root_sink));
2077 /* Ok, let's determine the new real volume */
2078 compute_real_volume(root_sink);
2080 /* Let's 'push' the reference volume if necessary */
2081 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_sink->real_volume);
2082 /* If the sink and its root don't have the same number of channels, we need to remap */
2083 if (s != root_sink && !pa_channel_map_equal(&s->channel_map, &root_sink->channel_map))
2084 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2085 update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save);
2087 /* Now that the reference volume is updated, we can update the streams'
2088 * reference ratios. */
2089 compute_reference_ratios(root_sink);
2092 if (root_sink->set_volume) {
2093 /* If we have a function set_volume(), then we do not apply a
2094 * soft volume by default. However, set_volume() is free to
2095 * apply one to root_sink->soft_volume */
2097 pa_cvolume_reset(&root_sink->soft_volume, root_sink->sample_spec.channels);
2098 if (!(root_sink->flags & PA_SINK_DEFERRED_VOLUME))
2099 root_sink->set_volume(root_sink);
2102 /* If we have no function set_volume(), then the soft volume
2103 * becomes the real volume */
2104 root_sink->soft_volume = root_sink->real_volume;
2106 /* This tells the sink that soft volume and/or real volume changed */
2108 pa_assert_se(pa_asyncmsgq_send(root_sink->asyncmsgq, PA_MSGOBJECT(root_sink), PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
2111 /* Called from the io thread if sync volume is used, otherwise from the main thread.
2112 * Only to be called by sink implementor */
2113 void pa_sink_set_soft_volume(pa_sink *s, const pa_cvolume *volume) {
2115 pa_sink_assert_ref(s);
2116 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2118 if (s->flags & PA_SINK_DEFERRED_VOLUME)
2119 pa_sink_assert_io_context(s);
2121 pa_assert_ctl_context();
2124 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
2126 s->soft_volume = *volume;
2128 if (PA_SINK_IS_LINKED(s->state) && !(s->flags & PA_SINK_DEFERRED_VOLUME))
2129 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
2131 s->thread_info.soft_volume = s->soft_volume;
2134 /* Called from the main thread. Only called for the root sink in volume sharing
2135 * cases, except for internal recursive calls. */
2136 static void propagate_real_volume(pa_sink *s, const pa_cvolume *old_real_volume) {
2140 pa_sink_assert_ref(s);
2141 pa_assert(old_real_volume);
2142 pa_assert_ctl_context();
2143 pa_assert(PA_SINK_IS_LINKED(s->state));
2145 /* This is called when the hardware's real volume changes due to
2146 * some external event. We copy the real volume into our
2147 * reference volume and then rebuild the stream volumes based on
2148 * i->real_ratio which should stay fixed. */
2150 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
2151 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
2154 /* 1. Make the real volume the reference volume */
2155 update_reference_volume(s, &s->real_volume, &s->channel_map, true);
2158 if (pa_sink_flat_volume_enabled(s)) {
2160 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2161 pa_cvolume new_volume;
2163 /* 2. Since the sink's reference and real volumes are equal
2164 * now our ratios should be too. */
2165 pa_sink_input_set_reference_ratio(i, &i->real_ratio);
2167 /* 3. Recalculate the new stream reference volume based on the
2168 * reference ratio and the sink's reference volume.
2170 * This basically calculates:
2172 * i->volume = s->reference_volume * i->reference_ratio
2174 * This is identical to propagate_reference_volume() */
2175 new_volume = s->reference_volume;
2176 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
2177 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
2178 pa_sink_input_set_volume_direct(i, &new_volume);
2180 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2181 propagate_real_volume(i->origin_sink, old_real_volume);
2185 /* Something got changed in the hardware. It probably makes sense
2186 * to save changed hw settings given that hw volume changes not
2187 * triggered by PA are almost certainly done by the user. */
2188 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2189 s->save_volume = true;
2192 /* Called from io thread */
2193 void pa_sink_update_volume_and_mute(pa_sink *s) {
2195 pa_sink_assert_io_context(s);
2197 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
2200 /* Called from main thread */
2201 const pa_cvolume *pa_sink_get_volume(pa_sink *s, bool force_refresh) {
2202 pa_sink_assert_ref(s);
2203 pa_assert_ctl_context();
2204 pa_assert(PA_SINK_IS_LINKED(s->state));
2206 if (s->refresh_volume || force_refresh) {
2207 struct pa_cvolume old_real_volume;
2209 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2211 old_real_volume = s->real_volume;
2213 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume)
2216 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
2218 update_real_volume(s, &s->real_volume, &s->channel_map);
2219 propagate_real_volume(s, &old_real_volume);
2222 return &s->reference_volume;
2225 /* Called from main thread. In volume sharing cases, only the root sink may
2227 void pa_sink_volume_changed(pa_sink *s, const pa_cvolume *new_real_volume) {
2228 pa_cvolume old_real_volume;
2230 pa_sink_assert_ref(s);
2231 pa_assert_ctl_context();
2232 pa_assert(PA_SINK_IS_LINKED(s->state));
2233 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2235 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2237 old_real_volume = s->real_volume;
2238 update_real_volume(s, new_real_volume, &s->channel_map);
2239 propagate_real_volume(s, &old_real_volume);
2242 /* Called from main thread */
2243 void pa_sink_set_mute(pa_sink *s, bool mute, bool save) {
2246 pa_sink_assert_ref(s);
2247 pa_assert_ctl_context();
2249 old_muted = s->muted;
2251 if (mute == old_muted) {
2252 s->save_muted |= save;
2257 s->save_muted = save;
2259 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->set_mute) {
2260 s->set_mute_in_progress = true;
2262 s->set_mute_in_progress = false;
2265 if (!PA_SINK_IS_LINKED(s->state))
2268 pa_log_debug("The mute of sink %s changed from %s to %s.", s->name, pa_yes_no(old_muted), pa_yes_no(mute));
2269 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2270 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2271 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_MUTE_CHANGED], s);
2274 /* Called from main thread */
2275 bool pa_sink_get_mute(pa_sink *s, bool force_refresh) {
2277 pa_sink_assert_ref(s);
2278 pa_assert_ctl_context();
2279 pa_assert(PA_SINK_IS_LINKED(s->state));
2281 if ((s->refresh_muted || force_refresh) && s->get_mute) {
2284 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2285 if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MUTE, &mute, 0, NULL) >= 0)
2286 pa_sink_mute_changed(s, mute);
2288 if (s->get_mute(s, &mute) >= 0)
2289 pa_sink_mute_changed(s, mute);
2296 /* Called from main thread */
2297 void pa_sink_mute_changed(pa_sink *s, bool new_muted) {
2298 pa_sink_assert_ref(s);
2299 pa_assert_ctl_context();
2300 pa_assert(PA_SINK_IS_LINKED(s->state));
2302 if (s->set_mute_in_progress)
2305 /* pa_sink_set_mute() does this same check, so this may appear redundant,
2306 * but we must have this here also, because the save parameter of
2307 * pa_sink_set_mute() would otherwise have unintended side effects (saving
2308 * the mute state when it shouldn't be saved). */
2309 if (new_muted == s->muted)
2312 pa_sink_set_mute(s, new_muted, true);
2315 /* Called from main thread */
2316 bool pa_sink_update_proplist(pa_sink *s, pa_update_mode_t mode, pa_proplist *p) {
2317 pa_sink_assert_ref(s);
2318 pa_assert_ctl_context();
2321 pa_proplist_update(s->proplist, mode, p);
2323 if (PA_SINK_IS_LINKED(s->state)) {
2324 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2325 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2331 /* Called from main thread */
2332 /* FIXME -- this should be dropped and be merged into pa_sink_update_proplist() */
2333 void pa_sink_set_description(pa_sink *s, const char *description) {
2335 pa_sink_assert_ref(s);
2336 pa_assert_ctl_context();
2338 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
2341 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2343 if (old && description && pa_streq(old, description))
2347 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
2349 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2351 if (s->monitor_source) {
2354 n = pa_sprintf_malloc("Monitor Source of %s", description ? description : s->name);
2355 pa_source_set_description(s->monitor_source, n);
2359 if (PA_SINK_IS_LINKED(s->state)) {
2360 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2361 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2365 /* Called from main thread */
2366 unsigned pa_sink_linked_by(pa_sink *s) {
2369 pa_sink_assert_ref(s);
2370 pa_assert_ctl_context();
2371 pa_assert(PA_SINK_IS_LINKED(s->state));
2373 ret = pa_idxset_size(s->inputs);
2375 /* We add in the number of streams connected to us here. Please
2376 * note the asymmetry to pa_sink_used_by()! */
2378 if (s->monitor_source)
2379 ret += pa_source_linked_by(s->monitor_source);
2384 /* Called from main thread */
2385 unsigned pa_sink_used_by(pa_sink *s) {
2388 pa_sink_assert_ref(s);
2389 pa_assert_ctl_context();
2390 pa_assert(PA_SINK_IS_LINKED(s->state));
2392 ret = pa_idxset_size(s->inputs);
2393 pa_assert(ret >= s->n_corked);
2395 /* Streams connected to our monitor source do not matter for
2396 * pa_sink_used_by()!.*/
2398 return ret - s->n_corked;
2401 /* Called from main thread */
2402 unsigned pa_sink_check_suspend(pa_sink *s, pa_sink_input *ignore_input, pa_source_output *ignore_output) {
2407 pa_sink_assert_ref(s);
2408 pa_assert_ctl_context();
2410 if (!PA_SINK_IS_LINKED(s->state))
2415 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2416 pa_sink_input_state_t st;
2418 if (i == ignore_input)
2421 st = pa_sink_input_get_state(i);
2423 /* We do not assert here. It is perfectly valid for a sink input to
2424 * be in the INIT state (i.e. created, marked done but not yet put)
2425 * and we should not care if it's unlinked as it won't contribute
2426 * towards our busy status.
2428 if (!PA_SINK_INPUT_IS_LINKED(st))
2431 if (st == PA_SINK_INPUT_CORKED)
2434 if (i->flags & PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND)
2440 if (s->monitor_source)
2441 ret += pa_source_check_suspend(s->monitor_source, ignore_output);
2446 /* Called from the IO thread */
2447 static void sync_input_volumes_within_thread(pa_sink *s) {
2451 pa_sink_assert_ref(s);
2452 pa_sink_assert_io_context(s);
2454 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2455 if (pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume))
2458 i->thread_info.soft_volume = i->soft_volume;
2459 pa_sink_input_request_rewind(i, 0, true, false, false);
2463 /* Called from the IO thread. Only called for the root sink in volume sharing
2464 * cases, except for internal recursive calls. */
2465 static void set_shared_volume_within_thread(pa_sink *s) {
2466 pa_sink_input *i = NULL;
2469 pa_sink_assert_ref(s);
2471 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
2473 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2474 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2475 set_shared_volume_within_thread(i->origin_sink);
2479 /* Called from IO thread, except when it is not */
2480 int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
2481 pa_sink *s = PA_SINK(o);
2482 pa_sink_assert_ref(s);
2484 switch ((pa_sink_message_t) code) {
2486 case PA_SINK_MESSAGE_ADD_INPUT: {
2487 pa_sink_input *i = PA_SINK_INPUT(userdata);
2489 /* If you change anything here, make sure to change the
2490 * sink input handling a few lines down at
2491 * PA_SINK_MESSAGE_FINISH_MOVE, too. */
2493 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2495 /* Since the caller sleeps in pa_sink_input_put(), we can
2496 * safely access data outside of thread_info even though
2499 if ((i->thread_info.sync_prev = i->sync_prev)) {
2500 pa_assert(i->sink == i->thread_info.sync_prev->sink);
2501 pa_assert(i->sync_prev->sync_next == i);
2502 i->thread_info.sync_prev->thread_info.sync_next = i;
2505 if ((i->thread_info.sync_next = i->sync_next)) {
2506 pa_assert(i->sink == i->thread_info.sync_next->sink);
2507 pa_assert(i->sync_next->sync_prev == i);
2508 i->thread_info.sync_next->thread_info.sync_prev = i;
2511 pa_sink_input_attach(i);
2513 pa_sink_input_set_state_within_thread(i, i->state);
2515 /* The requested latency of the sink input needs to be fixed up and
2516 * then configured on the sink. If this causes the sink latency to
2517 * go down, the sink implementor is responsible for doing a rewind
2518 * in the update_requested_latency() callback to ensure that the
2519 * sink buffer doesn't contain more data than what the new latency
2522 * XXX: Does it really make sense to push this responsibility to
2523 * the sink implementors? Wouldn't it be better to do it once in
2524 * the core than many times in the modules? */
2526 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2527 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2529 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2530 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2532 /* We don't rewind here automatically. This is left to the
2533 * sink input implementor because some sink inputs need a
2534 * slow start, i.e. need some time to buffer client
2535 * samples before beginning streaming.
2537 * XXX: Does it really make sense to push this functionality to
2538 * the sink implementors? Wouldn't it be better to do it once in
2539 * the core than many times in the modules? */
2541 /* In flat volume mode we need to update the volume as
2543 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2546 case PA_SINK_MESSAGE_REMOVE_INPUT: {
2547 pa_sink_input *i = PA_SINK_INPUT(userdata);
2549 /* If you change anything here, make sure to change the
2550 * sink input handling a few lines down at
2551 * PA_SINK_MESSAGE_START_MOVE, too. */
2553 pa_sink_input_detach(i);
2555 pa_sink_input_set_state_within_thread(i, i->state);
2557 /* Since the caller sleeps in pa_sink_input_unlink(),
2558 * we can safely access data outside of thread_info even
2559 * though it is mutable */
2561 pa_assert(!i->sync_prev);
2562 pa_assert(!i->sync_next);
2564 if (i->thread_info.sync_prev) {
2565 i->thread_info.sync_prev->thread_info.sync_next = i->thread_info.sync_prev->sync_next;
2566 i->thread_info.sync_prev = NULL;
2569 if (i->thread_info.sync_next) {
2570 i->thread_info.sync_next->thread_info.sync_prev = i->thread_info.sync_next->sync_prev;
2571 i->thread_info.sync_next = NULL;
2574 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2575 pa_sink_invalidate_requested_latency(s, true);
2576 pa_sink_request_rewind(s, (size_t) -1);
2578 /* In flat volume mode we need to update the volume as
2580 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2583 case PA_SINK_MESSAGE_START_MOVE: {
2584 pa_sink_input *i = PA_SINK_INPUT(userdata);
2586 /* We don't support moving synchronized streams. */
2587 pa_assert(!i->sync_prev);
2588 pa_assert(!i->sync_next);
2589 pa_assert(!i->thread_info.sync_next);
2590 pa_assert(!i->thread_info.sync_prev);
2592 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2594 size_t sink_nbytes, total_nbytes;
2596 /* The old sink probably has some audio from this
2597 * stream in its buffer. We want to "take it back" as
2598 * much as possible and play it to the new sink. We
2599 * don't know at this point how much the old sink can
2600 * rewind. We have to pick something, and that
2601 * something is the full latency of the old sink here.
2602 * So we rewind the stream buffer by the sink latency
2603 * amount, which may be more than what we should
2604 * rewind. This can result in a chunk of audio being
2605 * played both to the old sink and the new sink.
2607 * FIXME: Fix this code so that we don't have to make
2608 * guesses about how much the sink will actually be
2609 * able to rewind. If someone comes up with a solution
2610 * for this, something to note is that the part of the
2611 * latency that the old sink couldn't rewind should
2612 * ideally be compensated after the stream has moved
2613 * to the new sink by adding silence. The new sink
2614 * most likely can't start playing the moved stream
2615 * immediately, and that gap should be removed from
2616 * the "compensation silence" (at least at the time of
2617 * writing this, the move finish code will actually
2618 * already take care of dropping the new sink's
2619 * unrewindable latency, so taking into account the
2620 * unrewindable latency of the old sink is the only
2623 * The render_memblockq contents are discarded,
2624 * because when the sink changes, the format of the
2625 * audio stored in the render_memblockq may change
2626 * too, making the stored audio invalid. FIXME:
2627 * However, the read and write indices are moved back
2628 * the same amount, so if they are not the same now,
2629 * they won't be the same after the rewind either. If
2630 * the write index of the render_memblockq is ahead of
2631 * the read index, then the render_memblockq will feed
2632 * the new sink some silence first, which it shouldn't
2633 * do. The write index should be flushed to be the
2634 * same as the read index. */
2636 /* Get the latency of the sink */
2637 usec = pa_sink_get_latency_within_thread(s, false);
2638 sink_nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2639 total_nbytes = sink_nbytes + pa_memblockq_get_length(i->thread_info.render_memblockq);
2641 if (total_nbytes > 0) {
2642 i->thread_info.rewrite_nbytes = i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, total_nbytes) : total_nbytes;
2643 i->thread_info.rewrite_flush = true;
2644 pa_sink_input_process_rewind(i, sink_nbytes);
2648 pa_sink_input_detach(i);
2650 /* Let's remove the sink input ...*/
2651 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2653 pa_sink_invalidate_requested_latency(s, true);
2655 pa_log_debug("Requesting rewind due to started move");
2656 pa_sink_request_rewind(s, (size_t) -1);
2658 /* In flat volume mode we need to update the volume as
2660 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2663 case PA_SINK_MESSAGE_FINISH_MOVE: {
2664 pa_sink_input *i = PA_SINK_INPUT(userdata);
2666 /* We don't support moving synchronized streams. */
2667 pa_assert(!i->sync_prev);
2668 pa_assert(!i->sync_next);
2669 pa_assert(!i->thread_info.sync_next);
2670 pa_assert(!i->thread_info.sync_prev);
2672 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2674 pa_sink_input_attach(i);
2676 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2680 /* In the ideal case the new sink would start playing
2681 * the stream immediately. That requires the sink to
2682 * be able to rewind all of its latency, which usually
2683 * isn't possible, so there will probably be some gap
2684 * before the moved stream becomes audible. We then
2685 * have two possibilities: 1) start playing the stream
2686 * from where it is now, or 2) drop the unrewindable
2687 * latency of the sink from the stream. With option 1
2688 * we won't lose any audio but the stream will have a
2689 * pause. With option 2 we may lose some audio but the
2690 * stream time will be somewhat in sync with the wall
2691 * clock. Lennart seems to have chosen option 2 (one
2692 * of the reasons might have been that option 1 is
2693 * actually much harder to implement), so we drop the
2694 * latency of the new sink from the moved stream and
2695 * hope that the sink will undo most of that in the
2698 /* Get the latency of the sink */
2699 usec = pa_sink_get_latency_within_thread(s, false);
2700 nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2703 pa_sink_input_drop(i, nbytes);
2705 pa_log_debug("Requesting rewind due to finished move");
2706 pa_sink_request_rewind(s, nbytes);
2709 /* Updating the requested sink latency has to be done
2710 * after the sink rewind request, not before, because
2711 * otherwise the sink may limit the rewind amount
2714 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2715 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2717 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2718 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2720 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2723 case PA_SINK_MESSAGE_SET_SHARED_VOLUME: {
2724 pa_sink *root_sink = pa_sink_get_master(s);
2726 if (PA_LIKELY(root_sink))
2727 set_shared_volume_within_thread(root_sink);
2732 case PA_SINK_MESSAGE_SET_VOLUME_SYNCED:
2734 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2736 pa_sink_volume_change_push(s);
2738 /* Fall through ... */
2740 case PA_SINK_MESSAGE_SET_VOLUME:
2742 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2743 s->thread_info.soft_volume = s->soft_volume;
2744 pa_sink_request_rewind(s, (size_t) -1);
2747 /* Fall through ... */
2749 case PA_SINK_MESSAGE_SYNC_VOLUMES:
2750 sync_input_volumes_within_thread(s);
2753 case PA_SINK_MESSAGE_GET_VOLUME:
2755 if ((s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume) {
2757 pa_sink_volume_change_flush(s);
2758 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2761 /* In case sink implementor reset SW volume. */
2762 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2763 s->thread_info.soft_volume = s->soft_volume;
2764 pa_sink_request_rewind(s, (size_t) -1);
2769 case PA_SINK_MESSAGE_SET_MUTE:
2771 if (s->thread_info.soft_muted != s->muted) {
2772 s->thread_info.soft_muted = s->muted;
2773 pa_sink_request_rewind(s, (size_t) -1);
2776 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->set_mute)
2781 case PA_SINK_MESSAGE_GET_MUTE:
2783 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->get_mute)
2784 return s->get_mute(s, userdata);
2788 case PA_SINK_MESSAGE_SET_STATE: {
2790 bool suspend_change =
2791 (s->thread_info.state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(PA_PTR_TO_UINT(userdata))) ||
2792 (PA_SINK_IS_OPENED(s->thread_info.state) && PA_PTR_TO_UINT(userdata) == PA_SINK_SUSPENDED);
2794 s->thread_info.state = PA_PTR_TO_UINT(userdata);
2796 if (s->thread_info.state == PA_SINK_SUSPENDED) {
2797 s->thread_info.rewind_nbytes = 0;
2798 s->thread_info.rewind_requested = false;
2801 if (suspend_change) {
2805 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
2806 if (i->suspend_within_thread)
2807 i->suspend_within_thread(i, s->thread_info.state == PA_SINK_SUSPENDED);
2813 case PA_SINK_MESSAGE_GET_REQUESTED_LATENCY: {
2815 pa_usec_t *usec = userdata;
2816 *usec = pa_sink_get_requested_latency_within_thread(s);
2818 /* Yes, that's right, the IO thread will see -1 when no
2819 * explicit requested latency is configured, the main
2820 * thread will see max_latency */
2821 if (*usec == (pa_usec_t) -1)
2822 *usec = s->thread_info.max_latency;
2827 case PA_SINK_MESSAGE_SET_LATENCY_RANGE: {
2828 pa_usec_t *r = userdata;
2830 pa_sink_set_latency_range_within_thread(s, r[0], r[1]);
2835 case PA_SINK_MESSAGE_GET_LATENCY_RANGE: {
2836 pa_usec_t *r = userdata;
2838 r[0] = s->thread_info.min_latency;
2839 r[1] = s->thread_info.max_latency;
2844 case PA_SINK_MESSAGE_GET_FIXED_LATENCY:
2846 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2849 case PA_SINK_MESSAGE_SET_FIXED_LATENCY:
2851 pa_sink_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2854 case PA_SINK_MESSAGE_GET_MAX_REWIND:
2856 *((size_t*) userdata) = s->thread_info.max_rewind;
2859 case PA_SINK_MESSAGE_GET_MAX_REQUEST:
2861 *((size_t*) userdata) = s->thread_info.max_request;
2864 case PA_SINK_MESSAGE_SET_MAX_REWIND:
2866 pa_sink_set_max_rewind_within_thread(s, (size_t) offset);
2869 case PA_SINK_MESSAGE_SET_MAX_REQUEST:
2871 pa_sink_set_max_request_within_thread(s, (size_t) offset);
2874 case PA_SINK_MESSAGE_SET_PORT:
2876 pa_assert(userdata);
2878 struct sink_message_set_port *msg_data = userdata;
2879 msg_data->ret = s->set_port(s, msg_data->port);
2883 case PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2884 /* This message is sent from IO-thread and handled in main thread. */
2885 pa_assert_ctl_context();
2887 /* Make sure we're not messing with main thread when no longer linked */
2888 if (!PA_SINK_IS_LINKED(s->state))
2891 pa_sink_get_volume(s, true);
2892 pa_sink_get_mute(s, true);
2895 case PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET:
2896 s->thread_info.port_latency_offset = offset;
2899 case PA_SINK_MESSAGE_GET_LATENCY:
2900 case PA_SINK_MESSAGE_MAX:
2907 /* Called from main thread */
2908 int pa_sink_suspend_all(pa_core *c, bool suspend, pa_suspend_cause_t cause) {
2913 pa_core_assert_ref(c);
2914 pa_assert_ctl_context();
2915 pa_assert(cause != 0);
2917 PA_IDXSET_FOREACH(sink, c->sinks, idx) {
2920 if ((r = pa_sink_suspend(sink, suspend, cause)) < 0)
2927 /* Called from IO thread */
2928 void pa_sink_detach_within_thread(pa_sink *s) {
2932 pa_sink_assert_ref(s);
2933 pa_sink_assert_io_context(s);
2934 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2936 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2937 pa_sink_input_detach(i);
2939 if (s->monitor_source)
2940 pa_source_detach_within_thread(s->monitor_source);
2943 /* Called from IO thread */
2944 void pa_sink_attach_within_thread(pa_sink *s) {
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 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2953 pa_sink_input_attach(i);
2955 if (s->monitor_source)
2956 pa_source_attach_within_thread(s->monitor_source);
2959 /* Called from IO thread */
2960 void pa_sink_request_rewind(pa_sink*s, size_t nbytes) {
2961 pa_sink_assert_ref(s);
2962 pa_sink_assert_io_context(s);
2963 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2965 if (nbytes == (size_t) -1)
2966 nbytes = s->thread_info.max_rewind;
2968 nbytes = PA_MIN(nbytes, s->thread_info.max_rewind);
2970 if (s->thread_info.rewind_requested &&
2971 nbytes <= s->thread_info.rewind_nbytes)
2974 s->thread_info.rewind_nbytes = nbytes;
2975 s->thread_info.rewind_requested = true;
2977 if (s->request_rewind)
2978 s->request_rewind(s);
2981 /* Called from IO thread */
2982 pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
2983 pa_usec_t result = (pa_usec_t) -1;
2986 pa_usec_t monitor_latency;
2988 pa_sink_assert_ref(s);
2989 pa_sink_assert_io_context(s);
2991 if (!(s->flags & PA_SINK_DYNAMIC_LATENCY))
2992 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
2994 if (s->thread_info.requested_latency_valid)
2995 return s->thread_info.requested_latency;
2997 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2998 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1 &&
2999 (result == (pa_usec_t) -1 || result > i->thread_info.requested_sink_latency))
3000 result = i->thread_info.requested_sink_latency;
3002 monitor_latency = pa_source_get_requested_latency_within_thread(s->monitor_source);
3004 if (monitor_latency != (pa_usec_t) -1 &&
3005 (result == (pa_usec_t) -1 || result > monitor_latency))
3006 result = monitor_latency;
3008 if (result != (pa_usec_t) -1)
3009 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
3011 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3012 /* Only cache if properly initialized */
3013 s->thread_info.requested_latency = result;
3014 s->thread_info.requested_latency_valid = true;
3020 /* Called from main thread */
3021 pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
3024 pa_sink_assert_ref(s);
3025 pa_assert_ctl_context();
3026 pa_assert(PA_SINK_IS_LINKED(s->state));
3028 if (s->state == PA_SINK_SUSPENDED)
3031 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
3036 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3037 void pa_sink_set_max_rewind_within_thread(pa_sink *s, size_t max_rewind) {
3041 pa_sink_assert_ref(s);
3042 pa_sink_assert_io_context(s);
3044 if (max_rewind == s->thread_info.max_rewind)
3047 s->thread_info.max_rewind = max_rewind;
3049 if (PA_SINK_IS_LINKED(s->thread_info.state))
3050 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3051 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
3053 if (s->monitor_source)
3054 pa_source_set_max_rewind_within_thread(s->monitor_source, s->thread_info.max_rewind);
3057 /* Called from main thread */
3058 void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind) {
3059 pa_sink_assert_ref(s);
3060 pa_assert_ctl_context();
3062 if (PA_SINK_IS_LINKED(s->state))
3063 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
3065 pa_sink_set_max_rewind_within_thread(s, max_rewind);
3068 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3069 void pa_sink_set_max_request_within_thread(pa_sink *s, size_t max_request) {
3072 pa_sink_assert_ref(s);
3073 pa_sink_assert_io_context(s);
3075 if (max_request == s->thread_info.max_request)
3078 s->thread_info.max_request = max_request;
3080 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3083 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3084 pa_sink_input_update_max_request(i, s->thread_info.max_request);
3088 /* Called from main thread */
3089 void pa_sink_set_max_request(pa_sink *s, size_t max_request) {
3090 pa_sink_assert_ref(s);
3091 pa_assert_ctl_context();
3093 if (PA_SINK_IS_LINKED(s->state))
3094 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REQUEST, NULL, max_request, NULL) == 0);
3096 pa_sink_set_max_request_within_thread(s, max_request);
3099 /* Called from IO thread */
3100 void pa_sink_invalidate_requested_latency(pa_sink *s, bool dynamic) {
3104 pa_sink_assert_ref(s);
3105 pa_sink_assert_io_context(s);
3107 if ((s->flags & PA_SINK_DYNAMIC_LATENCY))
3108 s->thread_info.requested_latency_valid = false;
3112 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3114 if (s->update_requested_latency)
3115 s->update_requested_latency(s);
3117 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3118 if (i->update_sink_requested_latency)
3119 i->update_sink_requested_latency(i);
3123 /* Called from main thread */
3124 void pa_sink_set_latency_range(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3125 pa_sink_assert_ref(s);
3126 pa_assert_ctl_context();
3128 /* min_latency == 0: no limit
3129 * min_latency anything else: specified limit
3131 * Similar for max_latency */
3133 if (min_latency < ABSOLUTE_MIN_LATENCY)
3134 min_latency = ABSOLUTE_MIN_LATENCY;
3136 if (max_latency <= 0 ||
3137 max_latency > ABSOLUTE_MAX_LATENCY)
3138 max_latency = ABSOLUTE_MAX_LATENCY;
3140 pa_assert(min_latency <= max_latency);
3142 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3143 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3144 max_latency == ABSOLUTE_MAX_LATENCY) ||
3145 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3147 if (PA_SINK_IS_LINKED(s->state)) {
3153 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
3155 pa_sink_set_latency_range_within_thread(s, min_latency, max_latency);
3158 /* Called from main thread */
3159 void pa_sink_get_latency_range(pa_sink *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
3160 pa_sink_assert_ref(s);
3161 pa_assert_ctl_context();
3162 pa_assert(min_latency);
3163 pa_assert(max_latency);
3165 if (PA_SINK_IS_LINKED(s->state)) {
3166 pa_usec_t r[2] = { 0, 0 };
3168 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
3170 *min_latency = r[0];
3171 *max_latency = r[1];
3173 *min_latency = s->thread_info.min_latency;
3174 *max_latency = s->thread_info.max_latency;
3178 /* Called from IO thread */
3179 void pa_sink_set_latency_range_within_thread(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3180 pa_sink_assert_ref(s);
3181 pa_sink_assert_io_context(s);
3183 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
3184 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
3185 pa_assert(min_latency <= max_latency);
3187 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3188 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3189 max_latency == ABSOLUTE_MAX_LATENCY) ||
3190 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3192 if (s->thread_info.min_latency == min_latency &&
3193 s->thread_info.max_latency == max_latency)
3196 s->thread_info.min_latency = min_latency;
3197 s->thread_info.max_latency = max_latency;
3199 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3203 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3204 if (i->update_sink_latency_range)
3205 i->update_sink_latency_range(i);
3208 pa_sink_invalidate_requested_latency(s, false);
3210 pa_source_set_latency_range_within_thread(s->monitor_source, min_latency, max_latency);
3213 /* Called from main thread */
3214 void pa_sink_set_fixed_latency(pa_sink *s, pa_usec_t latency) {
3215 pa_sink_assert_ref(s);
3216 pa_assert_ctl_context();
3218 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3219 pa_assert(latency == 0);
3223 if (latency < ABSOLUTE_MIN_LATENCY)
3224 latency = ABSOLUTE_MIN_LATENCY;
3226 if (latency > ABSOLUTE_MAX_LATENCY)
3227 latency = ABSOLUTE_MAX_LATENCY;
3229 if (PA_SINK_IS_LINKED(s->state))
3230 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
3232 s->thread_info.fixed_latency = latency;
3234 pa_source_set_fixed_latency(s->monitor_source, latency);
3237 /* Called from main thread */
3238 pa_usec_t pa_sink_get_fixed_latency(pa_sink *s) {
3241 pa_sink_assert_ref(s);
3242 pa_assert_ctl_context();
3244 if (s->flags & PA_SINK_DYNAMIC_LATENCY)
3247 if (PA_SINK_IS_LINKED(s->state))
3248 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
3250 latency = s->thread_info.fixed_latency;
3255 /* Called from IO thread */
3256 void pa_sink_set_fixed_latency_within_thread(pa_sink *s, pa_usec_t latency) {
3257 pa_sink_assert_ref(s);
3258 pa_sink_assert_io_context(s);
3260 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3261 pa_assert(latency == 0);
3262 s->thread_info.fixed_latency = 0;
3264 if (s->monitor_source)
3265 pa_source_set_fixed_latency_within_thread(s->monitor_source, 0);
3270 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
3271 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
3273 if (s->thread_info.fixed_latency == latency)
3276 s->thread_info.fixed_latency = latency;
3278 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3282 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3283 if (i->update_sink_fixed_latency)
3284 i->update_sink_fixed_latency(i);
3287 pa_sink_invalidate_requested_latency(s, false);
3289 pa_source_set_fixed_latency_within_thread(s->monitor_source, latency);
3292 /* Called from main context */
3293 void pa_sink_set_port_latency_offset(pa_sink *s, int64_t offset) {
3294 pa_sink_assert_ref(s);
3296 s->port_latency_offset = offset;
3298 if (PA_SINK_IS_LINKED(s->state))
3299 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET, NULL, offset, NULL) == 0);
3301 s->thread_info.port_latency_offset = offset;
3303 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_LATENCY_OFFSET_CHANGED], s);
3306 /* Called from main context */
3307 size_t pa_sink_get_max_rewind(pa_sink *s) {
3309 pa_assert_ctl_context();
3310 pa_sink_assert_ref(s);
3312 if (!PA_SINK_IS_LINKED(s->state))
3313 return s->thread_info.max_rewind;
3315 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
3320 /* Called from main context */
3321 size_t pa_sink_get_max_request(pa_sink *s) {
3323 pa_sink_assert_ref(s);
3324 pa_assert_ctl_context();
3326 if (!PA_SINK_IS_LINKED(s->state))
3327 return s->thread_info.max_request;
3329 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REQUEST, &r, 0, NULL) == 0);
3334 /* Called from main context */
3335 int pa_sink_set_port(pa_sink *s, const char *name, bool save) {
3336 pa_device_port *port;
3339 pa_sink_assert_ref(s);
3340 pa_assert_ctl_context();
3343 pa_log_debug("set_port() operation not implemented for sink %u \"%s\"", s->index, s->name);
3344 return -PA_ERR_NOTIMPLEMENTED;
3348 return -PA_ERR_NOENTITY;
3350 if (!(port = pa_hashmap_get(s->ports, name)))
3351 return -PA_ERR_NOENTITY;
3353 if (s->active_port == port) {
3354 s->save_port = s->save_port || save;
3358 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
3359 struct sink_message_set_port msg = { .port = port, .ret = 0 };
3360 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
3364 ret = s->set_port(s, port);
3367 return -PA_ERR_NOENTITY;
3369 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3371 pa_log_info("Changed port of sink %u \"%s\" to %s", s->index, s->name, port->name);
3373 s->active_port = port;
3374 s->save_port = save;
3376 pa_sink_set_port_latency_offset(s, s->active_port->latency_offset);
3378 /* The active port affects the default sink selection. */
3379 pa_core_update_default_sink(s->core);
3381 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_CHANGED], s);
3386 bool pa_device_init_icon(pa_proplist *p, bool is_sink) {
3387 const char *ff, *c, *t = NULL, *s = "", *profile, *bus;
3391 if (pa_proplist_contains(p, PA_PROP_DEVICE_ICON_NAME))
3394 if ((ff = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3396 if (pa_streq(ff, "microphone"))
3397 t = "audio-input-microphone";
3398 else if (pa_streq(ff, "webcam"))
3400 else if (pa_streq(ff, "computer"))
3402 else if (pa_streq(ff, "handset"))
3404 else if (pa_streq(ff, "portable"))
3405 t = "multimedia-player";
3406 else if (pa_streq(ff, "tv"))
3407 t = "video-display";
3410 * The following icons are not part of the icon naming spec,
3411 * because Rodney Dawes sucks as the maintainer of that spec.
3413 * http://lists.freedesktop.org/archives/xdg/2009-May/010397.html
3415 else if (pa_streq(ff, "headset"))
3416 t = "audio-headset";
3417 else if (pa_streq(ff, "headphone"))
3418 t = "audio-headphones";
3419 else if (pa_streq(ff, "speaker"))
3420 t = "audio-speakers";
3421 else if (pa_streq(ff, "hands-free"))
3422 t = "audio-handsfree";
3426 if ((c = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3427 if (pa_streq(c, "modem"))
3434 t = "audio-input-microphone";
3437 if ((profile = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3438 if (strstr(profile, "analog"))
3440 else if (strstr(profile, "iec958"))
3442 else if (strstr(profile, "hdmi"))
3446 bus = pa_proplist_gets(p, PA_PROP_DEVICE_BUS);
3448 pa_proplist_setf(p, PA_PROP_DEVICE_ICON_NAME, "%s%s%s%s", t, pa_strempty(s), bus ? "-" : "", pa_strempty(bus));
3453 bool pa_device_init_description(pa_proplist *p, pa_card *card) {
3454 const char *s, *d = NULL, *k;
3457 if (pa_proplist_contains(p, PA_PROP_DEVICE_DESCRIPTION))
3461 if ((s = pa_proplist_gets(card->proplist, PA_PROP_DEVICE_DESCRIPTION)))
3465 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3466 if (pa_streq(s, "internal"))
3467 d = _("Built-in Audio");
3470 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3471 if (pa_streq(s, "modem"))
3475 d = pa_proplist_gets(p, PA_PROP_DEVICE_PRODUCT_NAME);
3480 k = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_DESCRIPTION);
3483 pa_proplist_setf(p, PA_PROP_DEVICE_DESCRIPTION, "%s %s", d, k);
3485 pa_proplist_sets(p, PA_PROP_DEVICE_DESCRIPTION, d);
3490 bool pa_device_init_intended_roles(pa_proplist *p) {
3494 if (pa_proplist_contains(p, PA_PROP_DEVICE_INTENDED_ROLES))
3497 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3498 if (pa_streq(s, "handset") || pa_streq(s, "hands-free")
3499 || pa_streq(s, "headset")) {
3500 pa_proplist_sets(p, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
3507 unsigned pa_device_init_priority(pa_proplist *p) {
3509 unsigned priority = 0;
3513 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS))) {
3515 if (pa_streq(s, "sound"))
3517 else if (!pa_streq(s, "modem"))
3521 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3523 if (pa_streq(s, "headphone"))
3525 else if (pa_streq(s, "hifi"))
3527 else if (pa_streq(s, "speaker"))
3529 else if (pa_streq(s, "portable"))
3531 else if (pa_streq(s, "internal"))
3535 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_BUS))) {
3537 if (pa_streq(s, "bluetooth"))
3539 else if (pa_streq(s, "usb"))
3541 else if (pa_streq(s, "pci"))
3545 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3547 if (pa_startswith(s, "analog-"))
3549 else if (pa_startswith(s, "iec958-"))
3556 PA_STATIC_FLIST_DECLARE(pa_sink_volume_change, 0, pa_xfree);
3558 /* Called from the IO thread. */
3559 static pa_sink_volume_change *pa_sink_volume_change_new(pa_sink *s) {
3560 pa_sink_volume_change *c;
3561 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_sink_volume_change))))
3562 c = pa_xnew(pa_sink_volume_change, 1);
3564 PA_LLIST_INIT(pa_sink_volume_change, c);
3566 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
3570 /* Called from the IO thread. */
3571 static void pa_sink_volume_change_free(pa_sink_volume_change *c) {
3573 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_sink_volume_change), c) < 0)
3577 /* Called from the IO thread. */
3578 void pa_sink_volume_change_push(pa_sink *s) {
3579 pa_sink_volume_change *c = NULL;
3580 pa_sink_volume_change *nc = NULL;
3581 pa_sink_volume_change *pc = NULL;
3582 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
3584 const char *direction = NULL;
3587 nc = pa_sink_volume_change_new(s);
3589 /* NOTE: There is already more different volumes in pa_sink that I can remember.
3590 * Adding one more volume for HW would get us rid of this, but I am trying
3591 * to survive with the ones we already have. */
3592 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
3594 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
3595 pa_log_debug("Volume not changing");
3596 pa_sink_volume_change_free(nc);
3600 nc->at = pa_sink_get_latency_within_thread(s, false);
3601 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3603 if (s->thread_info.volume_changes_tail) {
3604 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
3605 /* If volume is going up let's do it a bit late. If it is going
3606 * down let's do it a bit early. */
3607 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
3608 if (nc->at + safety_margin > c->at) {
3609 nc->at += safety_margin;
3614 else if (nc->at - safety_margin > c->at) {
3615 nc->at -= safety_margin;
3623 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
3624 nc->at += safety_margin;
3627 nc->at -= safety_margin;
3630 PA_LLIST_PREPEND(pa_sink_volume_change, s->thread_info.volume_changes, nc);
3633 PA_LLIST_INSERT_AFTER(pa_sink_volume_change, s->thread_info.volume_changes, c, nc);
3636 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
3638 /* We can ignore volume events that came earlier but should happen later than this. */
3639 PA_LLIST_FOREACH_SAFE(c, pc, nc->next) {
3640 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
3641 pa_sink_volume_change_free(c);
3644 s->thread_info.volume_changes_tail = nc;
3647 /* Called from the IO thread. */
3648 static void pa_sink_volume_change_flush(pa_sink *s) {
3649 pa_sink_volume_change *c = s->thread_info.volume_changes;
3651 s->thread_info.volume_changes = NULL;
3652 s->thread_info.volume_changes_tail = NULL;
3654 pa_sink_volume_change *next = c->next;
3655 pa_sink_volume_change_free(c);
3660 /* Called from the IO thread. */
3661 bool pa_sink_volume_change_apply(pa_sink *s, pa_usec_t *usec_to_next) {
3667 if (!s->thread_info.volume_changes || !PA_SINK_IS_LINKED(s->state)) {
3673 pa_assert(s->write_volume);
3675 now = pa_rtclock_now();
3677 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
3678 pa_sink_volume_change *c = s->thread_info.volume_changes;
3679 PA_LLIST_REMOVE(pa_sink_volume_change, s->thread_info.volume_changes, c);
3680 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
3681 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
3683 s->thread_info.current_hw_volume = c->hw_volume;
3684 pa_sink_volume_change_free(c);
3690 if (s->thread_info.volume_changes) {
3692 *usec_to_next = s->thread_info.volume_changes->at - now;
3693 if (pa_log_ratelimit(PA_LOG_DEBUG))
3694 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
3699 s->thread_info.volume_changes_tail = NULL;
3704 /* Called from the IO thread. */
3705 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes) {
3706 /* All the queued volume events later than current latency are shifted to happen earlier. */
3707 pa_sink_volume_change *c;
3708 pa_volume_t prev_vol = pa_cvolume_avg(&s->thread_info.current_hw_volume);
3709 pa_usec_t rewound = pa_bytes_to_usec(nbytes, &s->sample_spec);
3710 pa_usec_t limit = pa_sink_get_latency_within_thread(s, false);
3712 pa_log_debug("latency = %lld", (long long) limit);
3713 limit += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3715 PA_LLIST_FOREACH(c, s->thread_info.volume_changes) {
3716 pa_usec_t modified_limit = limit;
3717 if (prev_vol > pa_cvolume_avg(&c->hw_volume))
3718 modified_limit -= s->thread_info.volume_change_safety_margin;
3720 modified_limit += s->thread_info.volume_change_safety_margin;
3721 if (c->at > modified_limit) {
3723 if (c->at < modified_limit)
3724 c->at = modified_limit;
3726 prev_vol = pa_cvolume_avg(&c->hw_volume);
3728 pa_sink_volume_change_apply(s, NULL);
3731 /* Called from the main thread */
3732 /* Gets the list of formats supported by the sink. The members and idxset must
3733 * be freed by the caller. */
3734 pa_idxset* pa_sink_get_formats(pa_sink *s) {
3739 if (s->get_formats) {
3740 /* Sink supports format query, all is good */
3741 ret = s->get_formats(s);
3743 /* Sink doesn't support format query, so assume it does PCM */
3744 pa_format_info *f = pa_format_info_new();
3745 f->encoding = PA_ENCODING_PCM;
3747 ret = pa_idxset_new(NULL, NULL);
3748 pa_idxset_put(ret, f, NULL);
3754 /* Called from the main thread */
3755 /* Allows an external source to set what formats a sink supports if the sink
3756 * permits this. The function makes a copy of the formats on success. */
3757 bool pa_sink_set_formats(pa_sink *s, pa_idxset *formats) {
3762 /* Sink supports setting formats -- let's give it a shot */
3763 return s->set_formats(s, formats);
3765 /* Sink doesn't support setting this -- bail out */
3769 /* Called from the main thread */
3770 /* Checks if the sink can accept this format */
3771 bool pa_sink_check_format(pa_sink *s, pa_format_info *f) {
3772 pa_idxset *formats = NULL;
3778 formats = pa_sink_get_formats(s);
3781 pa_format_info *finfo_device;
3784 PA_IDXSET_FOREACH(finfo_device, formats, i) {
3785 if (pa_format_info_is_compatible(finfo_device, f)) {
3791 pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free);
3797 /* Called from the main thread */
3798 /* Calculates the intersection between formats supported by the sink and
3799 * in_formats, and returns these, in the order of the sink's formats. */
3800 pa_idxset* pa_sink_check_formats(pa_sink *s, pa_idxset *in_formats) {
3801 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *sink_formats = NULL;
3802 pa_format_info *f_sink, *f_in;
3807 if (!in_formats || pa_idxset_isempty(in_formats))
3810 sink_formats = pa_sink_get_formats(s);
3812 PA_IDXSET_FOREACH(f_sink, sink_formats, i) {
3813 PA_IDXSET_FOREACH(f_in, in_formats, j) {
3814 if (pa_format_info_is_compatible(f_sink, f_in))
3815 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
3821 pa_idxset_free(sink_formats, (pa_free_cb_t) pa_format_info_free);
3826 /* Called from the main thread. */
3827 void pa_sink_set_reference_volume_direct(pa_sink *s, const pa_cvolume *volume) {
3828 pa_cvolume old_volume;
3829 char old_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3830 char new_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3835 old_volume = s->reference_volume;
3837 if (pa_cvolume_equal(volume, &old_volume))
3840 s->reference_volume = *volume;
3841 pa_log_debug("The reference volume of sink %s changed from %s to %s.", s->name,
3842 pa_cvolume_snprint_verbose(old_volume_str, sizeof(old_volume_str), &old_volume, &s->channel_map,
3843 s->flags & PA_SINK_DECIBEL_VOLUME),
3844 pa_cvolume_snprint_verbose(new_volume_str, sizeof(new_volume_str), volume, &s->channel_map,
3845 s->flags & PA_SINK_DECIBEL_VOLUME));
3847 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3848 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_VOLUME_CHANGED], s);